1ab9953ffSGreg Kroah-Hartman // SPDX-License-Identifier: GPL-2.0 24a71df50SFrank Blaschka /* 3bbcfcdc8SFrank Blaschka * Copyright IBM Corp. 2007, 2009 44a71df50SFrank Blaschka * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, 54a71df50SFrank Blaschka * Frank Pavlic <fpavlic@de.ibm.com>, 64a71df50SFrank Blaschka * Thomas Spatzier <tspat@de.ibm.com>, 74a71df50SFrank Blaschka * Frank Blaschka <frank.blaschka@de.ibm.com> 84a71df50SFrank Blaschka */ 94a71df50SFrank Blaschka 1074eacdb9SFrank Blaschka #define KMSG_COMPONENT "qeth" 1174eacdb9SFrank Blaschka #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt 1274eacdb9SFrank Blaschka 130d55303cSDeepa Dinamani #include <linux/compat.h> 144a71df50SFrank Blaschka #include <linux/module.h> 154a71df50SFrank Blaschka #include <linux/moduleparam.h> 164a71df50SFrank Blaschka #include <linux/string.h> 174a71df50SFrank Blaschka #include <linux/errno.h> 184a71df50SFrank Blaschka #include <linux/kernel.h> 1955494264SJulian Wiedmann #include <linux/log2.h> 204a71df50SFrank Blaschka #include <linux/ip.h> 214a71df50SFrank Blaschka #include <linux/tcp.h> 224a71df50SFrank Blaschka #include <linux/mii.h> 234a71df50SFrank Blaschka #include <linux/kthread.h> 245a0e3ad6STejun Heo #include <linux/slab.h> 256d69b1f1SJulian Wiedmann #include <linux/if_vlan.h> 266d69b1f1SJulian Wiedmann #include <linux/netdevice.h> 276d69b1f1SJulian Wiedmann #include <linux/netdev_features.h> 286d69b1f1SJulian Wiedmann #include <linux/skbuff.h> 29aec45e85SWenjia Zhang #include <linux/vmalloc.h> 306d69b1f1SJulian Wiedmann 31b3332930SFrank Blaschka #include <net/iucv/af_iucv.h> 32290b8348SStefan Raspl #include <net/dsfield.h> 334a71df50SFrank Blaschka 34ab4227cbSMartin Schwidefsky #include <asm/ebcdic.h> 352bf29df7SSebastian Ott #include <asm/chpid.h> 36ab4227cbSMartin Schwidefsky #include <asm/io.h> 371da74b1cSFrank Blaschka #include <asm/sysinfo.h> 38ec61bd2fSJulian Wiedmann #include <asm/diag.h> 39ec61bd2fSJulian Wiedmann #include <asm/cio.h> 40ec61bd2fSJulian Wiedmann #include <asm/ccwdev.h> 41615dff22SJulian Wiedmann #include <asm/cpcmd.h> 424a71df50SFrank Blaschka 434a71df50SFrank Blaschka #include "qeth_core.h" 444a71df50SFrank Blaschka 45d11ba0c4SPeter Tiedemann struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = { 46d11ba0c4SPeter Tiedemann /* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */ 47d11ba0c4SPeter Tiedemann /* N P A M L V H */ 48d11ba0c4SPeter Tiedemann [QETH_DBF_SETUP] = {"qeth_setup", 49d11ba0c4SPeter Tiedemann 8, 1, 8, 5, &debug_hex_ascii_view, NULL}, 50f7e1e65dSSebastian Ott [QETH_DBF_MSG] = {"qeth_msg", 8, 1, 11 * sizeof(long), 3, 51f7e1e65dSSebastian Ott &debug_sprintf_view, NULL}, 52d11ba0c4SPeter Tiedemann [QETH_DBF_CTRL] = {"qeth_control", 53d11ba0c4SPeter Tiedemann 8, 1, QETH_DBF_CTRL_LEN, 5, &debug_hex_ascii_view, NULL}, 54d11ba0c4SPeter Tiedemann }; 55d11ba0c4SPeter Tiedemann EXPORT_SYMBOL_GPL(qeth_dbf); 564a71df50SFrank Blaschka 57683d718aSFrank Blaschka struct kmem_cache *qeth_core_header_cache; 58683d718aSFrank Blaschka EXPORT_SYMBOL_GPL(qeth_core_header_cache); 590da9581dSEinar Lueck static struct kmem_cache *qeth_qdio_outbuf_cache; 604a71df50SFrank Blaschka 614a71df50SFrank Blaschka static struct device *qeth_core_root_dev; 624a71df50SFrank Blaschka static struct lock_class_key qdio_out_skb_queue_key; 634a71df50SFrank Blaschka 648f6637b8SJulian Wiedmann static void qeth_send_control_data_cb(struct qeth_card *card, 658f6637b8SJulian Wiedmann struct qeth_channel *channel, 668f6637b8SJulian Wiedmann struct qeth_cmd_buffer *iob); 674a71df50SFrank Blaschka static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *); 684a71df50SFrank Blaschka static void qeth_free_buffer_pool(struct qeth_card *); 694a71df50SFrank Blaschka static int qeth_qdio_establish(struct qeth_card *); 700da9581dSEinar Lueck static void qeth_free_qdio_buffers(struct qeth_card *); 71b3332930SFrank Blaschka static void qeth_notify_skbs(struct qeth_qdio_out_q *queue, 72b3332930SFrank Blaschka struct qeth_qdio_out_buffer *buf, 73b3332930SFrank Blaschka enum iucv_tx_notify notification); 74b3332930SFrank Blaschka static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf); 7572861ae7SEinar Lueck static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *, int); 764a71df50SFrank Blaschka 77c0a2e4d1SJulian Wiedmann static struct workqueue_struct *qeth_wq; 780f54761dSStefan Raspl 79511c2445SEugene Crosser int qeth_card_hw_is_reachable(struct qeth_card *card) 80511c2445SEugene Crosser { 81511c2445SEugene Crosser return (card->state == CARD_STATE_SOFTSETUP) || 82511c2445SEugene Crosser (card->state == CARD_STATE_UP); 83511c2445SEugene Crosser } 84511c2445SEugene Crosser EXPORT_SYMBOL_GPL(qeth_card_hw_is_reachable); 85511c2445SEugene Crosser 860f54761dSStefan Raspl static void qeth_close_dev_handler(struct work_struct *work) 870f54761dSStefan Raspl { 880f54761dSStefan Raspl struct qeth_card *card; 890f54761dSStefan Raspl 900f54761dSStefan Raspl card = container_of(work, struct qeth_card, close_dev_work); 910f54761dSStefan Raspl QETH_CARD_TEXT(card, 2, "cldevhdl"); 920f54761dSStefan Raspl rtnl_lock(); 930f54761dSStefan Raspl dev_close(card->dev); 940f54761dSStefan Raspl rtnl_unlock(); 950f54761dSStefan Raspl ccwgroup_set_offline(card->gdev); 960f54761dSStefan Raspl } 970f54761dSStefan Raspl 980f54761dSStefan Raspl void qeth_close_dev(struct qeth_card *card) 990f54761dSStefan Raspl { 1000f54761dSStefan Raspl QETH_CARD_TEXT(card, 2, "cldevsubm"); 1010f54761dSStefan Raspl queue_work(qeth_wq, &card->close_dev_work); 1020f54761dSStefan Raspl } 1030f54761dSStefan Raspl EXPORT_SYMBOL_GPL(qeth_close_dev); 1040f54761dSStefan Raspl 105cef6ff22SJulian Wiedmann static const char *qeth_get_cardname(struct qeth_card *card) 1064a71df50SFrank Blaschka { 1074a71df50SFrank Blaschka if (card->info.guestlan) { 1084a71df50SFrank Blaschka switch (card->info.type) { 1095113fec0SUrsula Braun case QETH_CARD_TYPE_OSD: 1107096b187SStefan Raspl return " Virtual NIC QDIO"; 1114a71df50SFrank Blaschka case QETH_CARD_TYPE_IQD: 1127096b187SStefan Raspl return " Virtual NIC Hiper"; 1135113fec0SUrsula Braun case QETH_CARD_TYPE_OSM: 1147096b187SStefan Raspl return " Virtual NIC QDIO - OSM"; 1155113fec0SUrsula Braun case QETH_CARD_TYPE_OSX: 1167096b187SStefan Raspl return " Virtual NIC QDIO - OSX"; 1174a71df50SFrank Blaschka default: 1184a71df50SFrank Blaschka return " unknown"; 1194a71df50SFrank Blaschka } 1204a71df50SFrank Blaschka } else { 1214a71df50SFrank Blaschka switch (card->info.type) { 1225113fec0SUrsula Braun case QETH_CARD_TYPE_OSD: 1234a71df50SFrank Blaschka return " OSD Express"; 1244a71df50SFrank Blaschka case QETH_CARD_TYPE_IQD: 1254a71df50SFrank Blaschka return " HiperSockets"; 1264a71df50SFrank Blaschka case QETH_CARD_TYPE_OSN: 1274a71df50SFrank Blaschka return " OSN QDIO"; 1285113fec0SUrsula Braun case QETH_CARD_TYPE_OSM: 1295113fec0SUrsula Braun return " OSM QDIO"; 1305113fec0SUrsula Braun case QETH_CARD_TYPE_OSX: 1315113fec0SUrsula Braun return " OSX QDIO"; 1324a71df50SFrank Blaschka default: 1334a71df50SFrank Blaschka return " unknown"; 1344a71df50SFrank Blaschka } 1354a71df50SFrank Blaschka } 1364a71df50SFrank Blaschka return " n/a"; 1374a71df50SFrank Blaschka } 1384a71df50SFrank Blaschka 1394a71df50SFrank Blaschka /* max length to be returned: 14 */ 1404a71df50SFrank Blaschka const char *qeth_get_cardname_short(struct qeth_card *card) 1414a71df50SFrank Blaschka { 1424a71df50SFrank Blaschka if (card->info.guestlan) { 1434a71df50SFrank Blaschka switch (card->info.type) { 1445113fec0SUrsula Braun case QETH_CARD_TYPE_OSD: 1457096b187SStefan Raspl return "Virt.NIC QDIO"; 1464a71df50SFrank Blaschka case QETH_CARD_TYPE_IQD: 1477096b187SStefan Raspl return "Virt.NIC Hiper"; 1485113fec0SUrsula Braun case QETH_CARD_TYPE_OSM: 1497096b187SStefan Raspl return "Virt.NIC OSM"; 1505113fec0SUrsula Braun case QETH_CARD_TYPE_OSX: 1517096b187SStefan Raspl return "Virt.NIC OSX"; 1524a71df50SFrank Blaschka default: 1534a71df50SFrank Blaschka return "unknown"; 1544a71df50SFrank Blaschka } 1554a71df50SFrank Blaschka } else { 1564a71df50SFrank Blaschka switch (card->info.type) { 1575113fec0SUrsula Braun case QETH_CARD_TYPE_OSD: 1584a71df50SFrank Blaschka switch (card->info.link_type) { 1594a71df50SFrank Blaschka case QETH_LINK_TYPE_FAST_ETH: 1604a71df50SFrank Blaschka return "OSD_100"; 1614a71df50SFrank Blaschka case QETH_LINK_TYPE_HSTR: 1624a71df50SFrank Blaschka return "HSTR"; 1634a71df50SFrank Blaschka case QETH_LINK_TYPE_GBIT_ETH: 1644a71df50SFrank Blaschka return "OSD_1000"; 1654a71df50SFrank Blaschka case QETH_LINK_TYPE_10GBIT_ETH: 1664a71df50SFrank Blaschka return "OSD_10GIG"; 16754e049c2SJulian Wiedmann case QETH_LINK_TYPE_25GBIT_ETH: 16854e049c2SJulian Wiedmann return "OSD_25GIG"; 1694a71df50SFrank Blaschka case QETH_LINK_TYPE_LANE_ETH100: 1704a71df50SFrank Blaschka return "OSD_FE_LANE"; 1714a71df50SFrank Blaschka case QETH_LINK_TYPE_LANE_TR: 1724a71df50SFrank Blaschka return "OSD_TR_LANE"; 1734a71df50SFrank Blaschka case QETH_LINK_TYPE_LANE_ETH1000: 1744a71df50SFrank Blaschka return "OSD_GbE_LANE"; 1754a71df50SFrank Blaschka case QETH_LINK_TYPE_LANE: 1764a71df50SFrank Blaschka return "OSD_ATM_LANE"; 1774a71df50SFrank Blaschka default: 1784a71df50SFrank Blaschka return "OSD_Express"; 1794a71df50SFrank Blaschka } 1804a71df50SFrank Blaschka case QETH_CARD_TYPE_IQD: 1814a71df50SFrank Blaschka return "HiperSockets"; 1824a71df50SFrank Blaschka case QETH_CARD_TYPE_OSN: 1834a71df50SFrank Blaschka return "OSN"; 1845113fec0SUrsula Braun case QETH_CARD_TYPE_OSM: 1855113fec0SUrsula Braun return "OSM_1000"; 1865113fec0SUrsula Braun case QETH_CARD_TYPE_OSX: 1875113fec0SUrsula Braun return "OSX_10GIG"; 1884a71df50SFrank Blaschka default: 1894a71df50SFrank Blaschka return "unknown"; 1904a71df50SFrank Blaschka } 1914a71df50SFrank Blaschka } 1924a71df50SFrank Blaschka return "n/a"; 1934a71df50SFrank Blaschka } 1944a71df50SFrank Blaschka 1954a71df50SFrank Blaschka void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads, 1964a71df50SFrank Blaschka int clear_start_mask) 1974a71df50SFrank Blaschka { 1984a71df50SFrank Blaschka unsigned long flags; 1994a71df50SFrank Blaschka 2004a71df50SFrank Blaschka spin_lock_irqsave(&card->thread_mask_lock, flags); 2014a71df50SFrank Blaschka card->thread_allowed_mask = threads; 2024a71df50SFrank Blaschka if (clear_start_mask) 2034a71df50SFrank Blaschka card->thread_start_mask &= threads; 2044a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 2054a71df50SFrank Blaschka wake_up(&card->wait_q); 2064a71df50SFrank Blaschka } 2074a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_set_allowed_threads); 2084a71df50SFrank Blaschka 2094a71df50SFrank Blaschka int qeth_threads_running(struct qeth_card *card, unsigned long threads) 2104a71df50SFrank Blaschka { 2114a71df50SFrank Blaschka unsigned long flags; 2124a71df50SFrank Blaschka int rc = 0; 2134a71df50SFrank Blaschka 2144a71df50SFrank Blaschka spin_lock_irqsave(&card->thread_mask_lock, flags); 2154a71df50SFrank Blaschka rc = (card->thread_running_mask & threads); 2164a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 2174a71df50SFrank Blaschka return rc; 2184a71df50SFrank Blaschka } 2194a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_threads_running); 2204a71df50SFrank Blaschka 2214a71df50SFrank Blaschka void qeth_clear_working_pool_list(struct qeth_card *card) 2224a71df50SFrank Blaschka { 2234a71df50SFrank Blaschka struct qeth_buffer_pool_entry *pool_entry, *tmp; 2244a71df50SFrank Blaschka 225847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "clwrklst"); 2264a71df50SFrank Blaschka list_for_each_entry_safe(pool_entry, tmp, 2274a71df50SFrank Blaschka &card->qdio.in_buf_pool.entry_list, list){ 2284a71df50SFrank Blaschka list_del(&pool_entry->list); 2294a71df50SFrank Blaschka } 2304a71df50SFrank Blaschka } 2314a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list); 2324a71df50SFrank Blaschka 2334a71df50SFrank Blaschka static int qeth_alloc_buffer_pool(struct qeth_card *card) 2344a71df50SFrank Blaschka { 2354a71df50SFrank Blaschka struct qeth_buffer_pool_entry *pool_entry; 2364a71df50SFrank Blaschka void *ptr; 2374a71df50SFrank Blaschka int i, j; 2384a71df50SFrank Blaschka 239847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "alocpool"); 2404a71df50SFrank Blaschka for (i = 0; i < card->qdio.init_pool.buf_count; ++i) { 241b3332930SFrank Blaschka pool_entry = kzalloc(sizeof(*pool_entry), GFP_KERNEL); 2424a71df50SFrank Blaschka if (!pool_entry) { 2434a71df50SFrank Blaschka qeth_free_buffer_pool(card); 2444a71df50SFrank Blaschka return -ENOMEM; 2454a71df50SFrank Blaschka } 2464a71df50SFrank Blaschka for (j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j) { 247508b3c4fSUrsula Braun ptr = (void *) __get_free_page(GFP_KERNEL); 2484a71df50SFrank Blaschka if (!ptr) { 2494a71df50SFrank Blaschka while (j > 0) 2504a71df50SFrank Blaschka free_page((unsigned long) 2514a71df50SFrank Blaschka pool_entry->elements[--j]); 2524a71df50SFrank Blaschka kfree(pool_entry); 2534a71df50SFrank Blaschka qeth_free_buffer_pool(card); 2544a71df50SFrank Blaschka return -ENOMEM; 2554a71df50SFrank Blaschka } 2564a71df50SFrank Blaschka pool_entry->elements[j] = ptr; 2574a71df50SFrank Blaschka } 2584a71df50SFrank Blaschka list_add(&pool_entry->init_list, 2594a71df50SFrank Blaschka &card->qdio.init_pool.entry_list); 2604a71df50SFrank Blaschka } 2614a71df50SFrank Blaschka return 0; 2624a71df50SFrank Blaschka } 2634a71df50SFrank Blaschka 2644a71df50SFrank Blaschka int qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt) 2654a71df50SFrank Blaschka { 266847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "realcbp"); 2674a71df50SFrank Blaschka 2684a71df50SFrank Blaschka if ((card->state != CARD_STATE_DOWN) && 2694a71df50SFrank Blaschka (card->state != CARD_STATE_RECOVER)) 2704a71df50SFrank Blaschka return -EPERM; 2714a71df50SFrank Blaschka 2724a71df50SFrank Blaschka /* TODO: steel/add buffers from/to a running card's buffer pool (?) */ 2734a71df50SFrank Blaschka qeth_clear_working_pool_list(card); 2744a71df50SFrank Blaschka qeth_free_buffer_pool(card); 2754a71df50SFrank Blaschka card->qdio.in_buf_pool.buf_count = bufcnt; 2764a71df50SFrank Blaschka card->qdio.init_pool.buf_count = bufcnt; 2774a71df50SFrank Blaschka return qeth_alloc_buffer_pool(card); 2784a71df50SFrank Blaschka } 27976b11f8eSUrsula Braun EXPORT_SYMBOL_GPL(qeth_realloc_buffer_pool); 2804a71df50SFrank Blaschka 2814601ba6cSSebastian Ott static void qeth_free_qdio_queue(struct qeth_qdio_q *q) 2824601ba6cSSebastian Ott { 2836d284bdeSSebastian Ott if (!q) 2846d284bdeSSebastian Ott return; 2856d284bdeSSebastian Ott 2866d284bdeSSebastian Ott qdio_free_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q); 2874601ba6cSSebastian Ott kfree(q); 2884601ba6cSSebastian Ott } 2894601ba6cSSebastian Ott 2904601ba6cSSebastian Ott static struct qeth_qdio_q *qeth_alloc_qdio_queue(void) 2914601ba6cSSebastian Ott { 2924601ba6cSSebastian Ott struct qeth_qdio_q *q = kzalloc(sizeof(*q), GFP_KERNEL); 2934601ba6cSSebastian Ott int i; 2944601ba6cSSebastian Ott 2954601ba6cSSebastian Ott if (!q) 2964601ba6cSSebastian Ott return NULL; 2974601ba6cSSebastian Ott 2986d284bdeSSebastian Ott if (qdio_alloc_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q)) { 2996d284bdeSSebastian Ott kfree(q); 3006d284bdeSSebastian Ott return NULL; 3016d284bdeSSebastian Ott } 3026d284bdeSSebastian Ott 3034601ba6cSSebastian Ott for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) 3046d284bdeSSebastian Ott q->bufs[i].buffer = q->qdio_bufs[i]; 3054601ba6cSSebastian Ott 3064601ba6cSSebastian Ott QETH_DBF_HEX(SETUP, 2, &q, sizeof(void *)); 3074601ba6cSSebastian Ott return q; 3084601ba6cSSebastian Ott } 3094601ba6cSSebastian Ott 310cef6ff22SJulian Wiedmann static int qeth_cq_init(struct qeth_card *card) 3110da9581dSEinar Lueck { 3120da9581dSEinar Lueck int rc; 3130da9581dSEinar Lueck 3140da9581dSEinar Lueck if (card->options.cq == QETH_CQ_ENABLED) { 3150da9581dSEinar Lueck QETH_DBF_TEXT(SETUP, 2, "cqinit"); 3166d284bdeSSebastian Ott qdio_reset_buffers(card->qdio.c_q->qdio_bufs, 3176d284bdeSSebastian Ott QDIO_MAX_BUFFERS_PER_Q); 3180da9581dSEinar Lueck card->qdio.c_q->next_buf_to_init = 127; 3190da9581dSEinar Lueck rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 3200da9581dSEinar Lueck card->qdio.no_in_queues - 1, 0, 3210da9581dSEinar Lueck 127); 3220da9581dSEinar Lueck if (rc) { 3230da9581dSEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 3240da9581dSEinar Lueck goto out; 3250da9581dSEinar Lueck } 3260da9581dSEinar Lueck } 3270da9581dSEinar Lueck rc = 0; 3280da9581dSEinar Lueck out: 3290da9581dSEinar Lueck return rc; 3300da9581dSEinar Lueck } 3310da9581dSEinar Lueck 332cef6ff22SJulian Wiedmann static int qeth_alloc_cq(struct qeth_card *card) 3330da9581dSEinar Lueck { 3340da9581dSEinar Lueck int rc; 3350da9581dSEinar Lueck 3360da9581dSEinar Lueck if (card->options.cq == QETH_CQ_ENABLED) { 3370da9581dSEinar Lueck int i; 3380da9581dSEinar Lueck struct qdio_outbuf_state *outbuf_states; 3390da9581dSEinar Lueck 3400da9581dSEinar Lueck QETH_DBF_TEXT(SETUP, 2, "cqon"); 3414601ba6cSSebastian Ott card->qdio.c_q = qeth_alloc_qdio_queue(); 3420da9581dSEinar Lueck if (!card->qdio.c_q) { 3430da9581dSEinar Lueck rc = -1; 3440da9581dSEinar Lueck goto kmsg_out; 3450da9581dSEinar Lueck } 3460da9581dSEinar Lueck card->qdio.no_in_queues = 2; 3474a912f98SZhang Yanfei card->qdio.out_bufstates = 3486396bb22SKees Cook kcalloc(card->qdio.no_out_queues * 3496396bb22SKees Cook QDIO_MAX_BUFFERS_PER_Q, 3506396bb22SKees Cook sizeof(struct qdio_outbuf_state), 3516396bb22SKees Cook GFP_KERNEL); 3520da9581dSEinar Lueck outbuf_states = card->qdio.out_bufstates; 3530da9581dSEinar Lueck if (outbuf_states == NULL) { 3540da9581dSEinar Lueck rc = -1; 3550da9581dSEinar Lueck goto free_cq_out; 3560da9581dSEinar Lueck } 3570da9581dSEinar Lueck for (i = 0; i < card->qdio.no_out_queues; ++i) { 3580da9581dSEinar Lueck card->qdio.out_qs[i]->bufstates = outbuf_states; 3590da9581dSEinar Lueck outbuf_states += QDIO_MAX_BUFFERS_PER_Q; 3600da9581dSEinar Lueck } 3610da9581dSEinar Lueck } else { 3620da9581dSEinar Lueck QETH_DBF_TEXT(SETUP, 2, "nocq"); 3630da9581dSEinar Lueck card->qdio.c_q = NULL; 3640da9581dSEinar Lueck card->qdio.no_in_queues = 1; 3650da9581dSEinar Lueck } 3660da9581dSEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "iqc%d", card->qdio.no_in_queues); 3670da9581dSEinar Lueck rc = 0; 3680da9581dSEinar Lueck out: 3690da9581dSEinar Lueck return rc; 3700da9581dSEinar Lueck free_cq_out: 3714601ba6cSSebastian Ott qeth_free_qdio_queue(card->qdio.c_q); 3720da9581dSEinar Lueck card->qdio.c_q = NULL; 3730da9581dSEinar Lueck kmsg_out: 3740da9581dSEinar Lueck dev_err(&card->gdev->dev, "Failed to create completion queue\n"); 3750da9581dSEinar Lueck goto out; 3760da9581dSEinar Lueck } 3770da9581dSEinar Lueck 378cef6ff22SJulian Wiedmann static void qeth_free_cq(struct qeth_card *card) 3790da9581dSEinar Lueck { 3800da9581dSEinar Lueck if (card->qdio.c_q) { 3810da9581dSEinar Lueck --card->qdio.no_in_queues; 3824601ba6cSSebastian Ott qeth_free_qdio_queue(card->qdio.c_q); 3830da9581dSEinar Lueck card->qdio.c_q = NULL; 3840da9581dSEinar Lueck } 3850da9581dSEinar Lueck kfree(card->qdio.out_bufstates); 3860da9581dSEinar Lueck card->qdio.out_bufstates = NULL; 3870da9581dSEinar Lueck } 3880da9581dSEinar Lueck 389cef6ff22SJulian Wiedmann static enum iucv_tx_notify qeth_compute_cq_notification(int sbalf15, 390cef6ff22SJulian Wiedmann int delayed) 391cef6ff22SJulian Wiedmann { 392b3332930SFrank Blaschka enum iucv_tx_notify n; 393b3332930SFrank Blaschka 394b3332930SFrank Blaschka switch (sbalf15) { 395b3332930SFrank Blaschka case 0: 396b3332930SFrank Blaschka n = delayed ? TX_NOTIFY_DELAYED_OK : TX_NOTIFY_OK; 397b3332930SFrank Blaschka break; 398b3332930SFrank Blaschka case 4: 399b3332930SFrank Blaschka case 16: 400b3332930SFrank Blaschka case 17: 401b3332930SFrank Blaschka case 18: 402b3332930SFrank Blaschka n = delayed ? TX_NOTIFY_DELAYED_UNREACHABLE : 403b3332930SFrank Blaschka TX_NOTIFY_UNREACHABLE; 404b3332930SFrank Blaschka break; 405b3332930SFrank Blaschka default: 406b3332930SFrank Blaschka n = delayed ? TX_NOTIFY_DELAYED_GENERALERROR : 407b3332930SFrank Blaschka TX_NOTIFY_GENERALERROR; 408b3332930SFrank Blaschka break; 409b3332930SFrank Blaschka } 410b3332930SFrank Blaschka 411b3332930SFrank Blaschka return n; 412b3332930SFrank Blaschka } 413b3332930SFrank Blaschka 414cef6ff22SJulian Wiedmann static void qeth_cleanup_handled_pending(struct qeth_qdio_out_q *q, int bidx, 415cef6ff22SJulian Wiedmann int forced_cleanup) 4160da9581dSEinar Lueck { 41772861ae7SEinar Lueck if (q->card->options.cq != QETH_CQ_ENABLED) 41872861ae7SEinar Lueck return; 41972861ae7SEinar Lueck 4200da9581dSEinar Lueck if (q->bufs[bidx]->next_pending != NULL) { 4210da9581dSEinar Lueck struct qeth_qdio_out_buffer *head = q->bufs[bidx]; 4220da9581dSEinar Lueck struct qeth_qdio_out_buffer *c = q->bufs[bidx]->next_pending; 4230da9581dSEinar Lueck 4240da9581dSEinar Lueck while (c) { 4250da9581dSEinar Lueck if (forced_cleanup || 4260da9581dSEinar Lueck atomic_read(&c->state) == 4270da9581dSEinar Lueck QETH_QDIO_BUF_HANDLED_DELAYED) { 4280da9581dSEinar Lueck struct qeth_qdio_out_buffer *f = c; 4290da9581dSEinar Lueck QETH_CARD_TEXT(f->q->card, 5, "fp"); 4300da9581dSEinar Lueck QETH_CARD_TEXT_(f->q->card, 5, "%lx", (long) f); 431b3332930SFrank Blaschka /* release here to avoid interleaving between 432b3332930SFrank Blaschka outbound tasklet and inbound tasklet 433b3332930SFrank Blaschka regarding notifications and lifecycle */ 434b3332930SFrank Blaschka qeth_release_skbs(c); 435b3332930SFrank Blaschka 4360da9581dSEinar Lueck c = f->next_pending; 43718af5c17SStefan Raspl WARN_ON_ONCE(head->next_pending != f); 4380da9581dSEinar Lueck head->next_pending = c; 4390da9581dSEinar Lueck kmem_cache_free(qeth_qdio_outbuf_cache, f); 4400da9581dSEinar Lueck } else { 4410da9581dSEinar Lueck head = c; 4420da9581dSEinar Lueck c = c->next_pending; 4430da9581dSEinar Lueck } 4440da9581dSEinar Lueck 4450da9581dSEinar Lueck } 4460da9581dSEinar Lueck } 44772861ae7SEinar Lueck if (forced_cleanup && (atomic_read(&(q->bufs[bidx]->state)) == 44872861ae7SEinar Lueck QETH_QDIO_BUF_HANDLED_DELAYED)) { 44972861ae7SEinar Lueck /* for recovery situations */ 45072861ae7SEinar Lueck qeth_init_qdio_out_buf(q, bidx); 45172861ae7SEinar Lueck QETH_CARD_TEXT(q->card, 2, "clprecov"); 45272861ae7SEinar Lueck } 4530da9581dSEinar Lueck } 4540da9581dSEinar Lueck 4550da9581dSEinar Lueck 456cef6ff22SJulian Wiedmann static void qeth_qdio_handle_aob(struct qeth_card *card, 457cef6ff22SJulian Wiedmann unsigned long phys_aob_addr) 458cef6ff22SJulian Wiedmann { 4590da9581dSEinar Lueck struct qaob *aob; 4600da9581dSEinar Lueck struct qeth_qdio_out_buffer *buffer; 461b3332930SFrank Blaschka enum iucv_tx_notify notification; 462ce28867fSJulian Wiedmann unsigned int i; 4630da9581dSEinar Lueck 4640da9581dSEinar Lueck aob = (struct qaob *) phys_to_virt(phys_aob_addr); 4650da9581dSEinar Lueck QETH_CARD_TEXT(card, 5, "haob"); 4660da9581dSEinar Lueck QETH_CARD_TEXT_(card, 5, "%lx", phys_aob_addr); 4670da9581dSEinar Lueck buffer = (struct qeth_qdio_out_buffer *) aob->user1; 4680da9581dSEinar Lueck QETH_CARD_TEXT_(card, 5, "%lx", aob->user1); 4690da9581dSEinar Lueck 470b3332930SFrank Blaschka if (atomic_cmpxchg(&buffer->state, QETH_QDIO_BUF_PRIMED, 471b3332930SFrank Blaschka QETH_QDIO_BUF_IN_CQ) == QETH_QDIO_BUF_PRIMED) { 472b3332930SFrank Blaschka notification = TX_NOTIFY_OK; 473b3332930SFrank Blaschka } else { 47418af5c17SStefan Raspl WARN_ON_ONCE(atomic_read(&buffer->state) != 47518af5c17SStefan Raspl QETH_QDIO_BUF_PENDING); 476b3332930SFrank Blaschka atomic_set(&buffer->state, QETH_QDIO_BUF_IN_CQ); 477b3332930SFrank Blaschka notification = TX_NOTIFY_DELAYED_OK; 478b3332930SFrank Blaschka } 479b3332930SFrank Blaschka 480b3332930SFrank Blaschka if (aob->aorc != 0) { 481b3332930SFrank Blaschka QETH_CARD_TEXT_(card, 2, "aorc%02X", aob->aorc); 482b3332930SFrank Blaschka notification = qeth_compute_cq_notification(aob->aorc, 1); 483b3332930SFrank Blaschka } 484b3332930SFrank Blaschka qeth_notify_skbs(buffer->q, buffer, notification); 485b3332930SFrank Blaschka 486ce28867fSJulian Wiedmann /* Free dangling allocations. The attached skbs are handled by 487ce28867fSJulian Wiedmann * qeth_cleanup_handled_pending(). 488ce28867fSJulian Wiedmann */ 489ce28867fSJulian Wiedmann for (i = 0; 490ce28867fSJulian Wiedmann i < aob->sb_count && i < QETH_MAX_BUFFER_ELEMENTS(card); 491ce28867fSJulian Wiedmann i++) { 492ce28867fSJulian Wiedmann if (aob->sba[i] && buffer->is_header[i]) 493ce28867fSJulian Wiedmann kmem_cache_free(qeth_core_header_cache, 494ce28867fSJulian Wiedmann (void *) aob->sba[i]); 495ce28867fSJulian Wiedmann } 496ce28867fSJulian Wiedmann atomic_set(&buffer->state, QETH_QDIO_BUF_HANDLED_DELAYED); 49772861ae7SEinar Lueck 4980da9581dSEinar Lueck qdio_release_aob(aob); 4990da9581dSEinar Lueck } 5000da9581dSEinar Lueck 5010da9581dSEinar Lueck static inline int qeth_is_cq(struct qeth_card *card, unsigned int queue) 5020da9581dSEinar Lueck { 5030da9581dSEinar Lueck return card->options.cq == QETH_CQ_ENABLED && 5040da9581dSEinar Lueck card->qdio.c_q != NULL && 5050da9581dSEinar Lueck queue != 0 && 5060da9581dSEinar Lueck queue == card->qdio.no_in_queues - 1; 5070da9581dSEinar Lueck } 5080da9581dSEinar Lueck 50945ca2fd6SJulian Wiedmann static void qeth_setup_ccw(struct ccw1 *ccw, u8 cmd_code, u32 len, void *data) 51045ca2fd6SJulian Wiedmann { 51145ca2fd6SJulian Wiedmann ccw->cmd_code = cmd_code; 51245ca2fd6SJulian Wiedmann ccw->flags = CCW_FLAG_SLI; 51345ca2fd6SJulian Wiedmann ccw->count = len; 51445ca2fd6SJulian Wiedmann ccw->cda = (__u32) __pa(data); 51545ca2fd6SJulian Wiedmann } 51645ca2fd6SJulian Wiedmann 51717bf8c9bSJulian Wiedmann static int __qeth_issue_next_read(struct qeth_card *card) 5184a71df50SFrank Blaschka { 519750b1625SJulian Wiedmann struct qeth_channel *channel = &card->read; 5204a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 521750b1625SJulian Wiedmann int rc; 5224a71df50SFrank Blaschka 523847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "issnxrd"); 524750b1625SJulian Wiedmann if (channel->state != CH_STATE_UP) 5254a71df50SFrank Blaschka return -EIO; 526750b1625SJulian Wiedmann iob = qeth_get_buffer(channel); 5274a71df50SFrank Blaschka if (!iob) { 52874eacdb9SFrank Blaschka dev_warn(&card->gdev->dev, "The qeth device driver " 52974eacdb9SFrank Blaschka "failed to recover an error on the device\n"); 530e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "issue_next_read on device %x failed: no iob available\n", 531e19e5be8SJulian Wiedmann CARD_DEVID(card)); 5324a71df50SFrank Blaschka return -ENOMEM; 5334a71df50SFrank Blaschka } 534f15cdaf2SJulian Wiedmann qeth_setup_ccw(channel->ccw, CCW_CMD_READ, QETH_BUFSIZE, iob->data); 535847a50fdSCarsten Otte QETH_CARD_TEXT(card, 6, "noirqpnd"); 536f15cdaf2SJulian Wiedmann rc = ccw_device_start(channel->ccwdev, channel->ccw, 5374a71df50SFrank Blaschka (addr_t) iob, 0, 0); 5384a71df50SFrank Blaschka if (rc) { 539e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "error %i on device %x when starting next read ccw!\n", 540e19e5be8SJulian Wiedmann rc, CARD_DEVID(card)); 541750b1625SJulian Wiedmann atomic_set(&channel->irq_pending, 0); 5425065b2ddSJulian Wiedmann qeth_release_buffer(channel, iob); 543908abbb5SUrsula Braun card->read_or_write_problem = 1; 5444a71df50SFrank Blaschka qeth_schedule_recovery(card); 5454a71df50SFrank Blaschka wake_up(&card->wait_q); 5464a71df50SFrank Blaschka } 5474a71df50SFrank Blaschka return rc; 5484a71df50SFrank Blaschka } 5494a71df50SFrank Blaschka 55017bf8c9bSJulian Wiedmann static int qeth_issue_next_read(struct qeth_card *card) 55117bf8c9bSJulian Wiedmann { 55217bf8c9bSJulian Wiedmann int ret; 55317bf8c9bSJulian Wiedmann 55417bf8c9bSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(CARD_RDEV(card))); 55517bf8c9bSJulian Wiedmann ret = __qeth_issue_next_read(card); 55617bf8c9bSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(CARD_RDEV(card))); 55717bf8c9bSJulian Wiedmann 55817bf8c9bSJulian Wiedmann return ret; 55917bf8c9bSJulian Wiedmann } 56017bf8c9bSJulian Wiedmann 5614a71df50SFrank Blaschka static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card) 5624a71df50SFrank Blaschka { 5634a71df50SFrank Blaschka struct qeth_reply *reply; 5644a71df50SFrank Blaschka 5654a71df50SFrank Blaschka reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC); 5664a71df50SFrank Blaschka if (reply) { 567ae695927SElena Reshetova refcount_set(&reply->refcnt, 1); 5684a71df50SFrank Blaschka atomic_set(&reply->received, 0); 5696531084cSPeter Senna Tschudin } 5704a71df50SFrank Blaschka return reply; 5714a71df50SFrank Blaschka } 5724a71df50SFrank Blaschka 5734a71df50SFrank Blaschka static void qeth_get_reply(struct qeth_reply *reply) 5744a71df50SFrank Blaschka { 575ae695927SElena Reshetova refcount_inc(&reply->refcnt); 5764a71df50SFrank Blaschka } 5774a71df50SFrank Blaschka 5784a71df50SFrank Blaschka static void qeth_put_reply(struct qeth_reply *reply) 5794a71df50SFrank Blaschka { 580ae695927SElena Reshetova if (refcount_dec_and_test(&reply->refcnt)) 5814a71df50SFrank Blaschka kfree(reply); 5824a71df50SFrank Blaschka } 5834a71df50SFrank Blaschka 584d11ba0c4SPeter Tiedemann static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc, 5854a71df50SFrank Blaschka struct qeth_card *card) 5864a71df50SFrank Blaschka { 587048a7f8bSJean Delvare const char *ipa_name; 588d11ba0c4SPeter Tiedemann int com = cmd->hdr.command; 5894a71df50SFrank Blaschka ipa_name = qeth_get_ipa_cmd_name(com); 590e19e5be8SJulian Wiedmann 591d11ba0c4SPeter Tiedemann if (rc) 592e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "IPA: %s(%#x) for device %x returned %#x \"%s\"\n", 593e19e5be8SJulian Wiedmann ipa_name, com, CARD_DEVID(card), rc, 59470919e23SUrsula Braun qeth_get_ipa_msg(rc)); 595d11ba0c4SPeter Tiedemann else 596e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(5, "IPA: %s(%#x) for device %x succeeded\n", 597e19e5be8SJulian Wiedmann ipa_name, com, CARD_DEVID(card)); 5984a71df50SFrank Blaschka } 5994a71df50SFrank Blaschka 6004a71df50SFrank Blaschka static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card, 601d19b93f4SJulian Wiedmann struct qeth_ipa_cmd *cmd) 6024a71df50SFrank Blaschka { 603847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "chkipad"); 604d19b93f4SJulian Wiedmann 6054a71df50SFrank Blaschka if (IS_IPA_REPLY(cmd)) { 60676b11f8eSUrsula Braun if (cmd->hdr.command != IPA_CMD_SETCCID && 60776b11f8eSUrsula Braun cmd->hdr.command != IPA_CMD_DELCCID && 60876b11f8eSUrsula Braun cmd->hdr.command != IPA_CMD_MODCCID && 60976b11f8eSUrsula Braun cmd->hdr.command != IPA_CMD_SET_DIAG_ASS) 610d19b93f4SJulian Wiedmann qeth_issue_ipa_msg(cmd, cmd->hdr.return_code, card); 6114a71df50SFrank Blaschka return cmd; 612d19b93f4SJulian Wiedmann } 613d19b93f4SJulian Wiedmann 614d19b93f4SJulian Wiedmann /* handle unsolicited event: */ 6154a71df50SFrank Blaschka switch (cmd->hdr.command) { 6164a71df50SFrank Blaschka case IPA_CMD_STOPLAN: 617d19b93f4SJulian Wiedmann if (cmd->hdr.return_code == IPA_RC_VEPA_TO_VEB_TRANSITION) { 6180f54761dSStefan Raspl dev_err(&card->gdev->dev, 619d19b93f4SJulian Wiedmann "Interface %s is down because the adjacent port is no longer in reflective relay mode\n", 6200f54761dSStefan Raspl QETH_CARD_IFNAME(card)); 6210f54761dSStefan Raspl qeth_close_dev(card); 6220f54761dSStefan Raspl } else { 62374eacdb9SFrank Blaschka dev_warn(&card->gdev->dev, 624d19b93f4SJulian Wiedmann "The link for interface %s on CHPID 0x%X failed\n", 625d19b93f4SJulian Wiedmann QETH_CARD_IFNAME(card), card->info.chpid); 626d19b93f4SJulian Wiedmann qeth_issue_ipa_msg(cmd, cmd->hdr.return_code, card); 6274a71df50SFrank Blaschka netif_carrier_off(card->dev); 62891cc98f5SJulian Wiedmann } 6294a71df50SFrank Blaschka return NULL; 6304a71df50SFrank Blaschka case IPA_CMD_STARTLAN: 63174eacdb9SFrank Blaschka dev_info(&card->gdev->dev, 632d19b93f4SJulian Wiedmann "The link for %s on CHPID 0x%X has been restored\n", 633d19b93f4SJulian Wiedmann QETH_CARD_IFNAME(card), card->info.chpid); 6341da74b1cSFrank Blaschka if (card->info.hwtrap) 6351da74b1cSFrank Blaschka card->info.hwtrap = 2; 6364a71df50SFrank Blaschka qeth_schedule_recovery(card); 6374a71df50SFrank Blaschka return NULL; 6389c23f4daSEugene Crosser case IPA_CMD_SETBRIDGEPORT_IQD: 6399c23f4daSEugene Crosser case IPA_CMD_SETBRIDGEPORT_OSA: 6409f48b9dbSEugene Crosser case IPA_CMD_ADDRESS_CHANGE_NOTIF: 641d19b93f4SJulian Wiedmann if (card->discipline->control_event_handler(card, cmd)) 642c044dc21SEugene Crosser return cmd; 6439f48b9dbSEugene Crosser return NULL; 6444a71df50SFrank Blaschka case IPA_CMD_MODCCID: 6454a71df50SFrank Blaschka return cmd; 6464a71df50SFrank Blaschka case IPA_CMD_REGISTER_LOCAL_ADDR: 647847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "irla"); 64868bba116SJulian Wiedmann return NULL; 6494a71df50SFrank Blaschka case IPA_CMD_UNREGISTER_LOCAL_ADDR: 650847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "urla"); 65168bba116SJulian Wiedmann return NULL; 6524a71df50SFrank Blaschka default: 653d19b93f4SJulian Wiedmann QETH_DBF_MESSAGE(2, "Received data is IPA but not a reply!\n"); 6544a71df50SFrank Blaschka return cmd; 6554a71df50SFrank Blaschka } 656d19b93f4SJulian Wiedmann } 6574a71df50SFrank Blaschka 6584a71df50SFrank Blaschka void qeth_clear_ipacmd_list(struct qeth_card *card) 6594a71df50SFrank Blaschka { 6604a71df50SFrank Blaschka struct qeth_reply *reply, *r; 6614a71df50SFrank Blaschka unsigned long flags; 6624a71df50SFrank Blaschka 663847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "clipalst"); 6644a71df50SFrank Blaschka 6654a71df50SFrank Blaschka spin_lock_irqsave(&card->lock, flags); 6664a71df50SFrank Blaschka list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) { 6674a71df50SFrank Blaschka qeth_get_reply(reply); 6684a71df50SFrank Blaschka reply->rc = -EIO; 6694a71df50SFrank Blaschka atomic_inc(&reply->received); 6704a71df50SFrank Blaschka list_del_init(&reply->list); 6714a71df50SFrank Blaschka wake_up(&reply->wait_q); 6724a71df50SFrank Blaschka qeth_put_reply(reply); 6734a71df50SFrank Blaschka } 6744a71df50SFrank Blaschka spin_unlock_irqrestore(&card->lock, flags); 6754a71df50SFrank Blaschka } 6764a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list); 6774a71df50SFrank Blaschka 6785113fec0SUrsula Braun static int qeth_check_idx_response(struct qeth_card *card, 6795113fec0SUrsula Braun unsigned char *buffer) 6804a71df50SFrank Blaschka { 6814a71df50SFrank Blaschka if (!buffer) 6824a71df50SFrank Blaschka return 0; 6834a71df50SFrank Blaschka 684d11ba0c4SPeter Tiedemann QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN); 6854a71df50SFrank Blaschka if ((buffer[2] & 0xc0) == 0xc0) { 686e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "received an IDX TERMINATE with cause code %#04x\n", 687d857e111SJulian Wiedmann buffer[4]); 688847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "ckidxres"); 689847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, " idxterm"); 690847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 2, " rc%d", -EIO); 6915113fec0SUrsula Braun if (buffer[4] == 0xf6) { 6925113fec0SUrsula Braun dev_err(&card->gdev->dev, 6935113fec0SUrsula Braun "The qeth device is not configured " 6945113fec0SUrsula Braun "for the OSI layer required by z/VM\n"); 6955113fec0SUrsula Braun return -EPERM; 6965113fec0SUrsula Braun } 6974a71df50SFrank Blaschka return -EIO; 6984a71df50SFrank Blaschka } 6994a71df50SFrank Blaschka return 0; 7004a71df50SFrank Blaschka } 7014a71df50SFrank Blaschka 7024a71df50SFrank Blaschka static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel) 7034a71df50SFrank Blaschka { 7044a71df50SFrank Blaschka __u8 index; 7054a71df50SFrank Blaschka 7064a71df50SFrank Blaschka index = channel->io_buf_no; 7074a71df50SFrank Blaschka do { 7084a71df50SFrank Blaschka if (channel->iob[index].state == BUF_STATE_FREE) { 7094a71df50SFrank Blaschka channel->iob[index].state = BUF_STATE_LOCKED; 7104a71df50SFrank Blaschka channel->io_buf_no = (channel->io_buf_no + 1) % 7114a71df50SFrank Blaschka QETH_CMD_BUFFER_NO; 7124a71df50SFrank Blaschka memset(channel->iob[index].data, 0, QETH_BUFSIZE); 7134a71df50SFrank Blaschka return channel->iob + index; 7144a71df50SFrank Blaschka } 7154a71df50SFrank Blaschka index = (index + 1) % QETH_CMD_BUFFER_NO; 7164a71df50SFrank Blaschka } while (index != channel->io_buf_no); 7174a71df50SFrank Blaschka 7184a71df50SFrank Blaschka return NULL; 7194a71df50SFrank Blaschka } 7204a71df50SFrank Blaschka 7214a71df50SFrank Blaschka void qeth_release_buffer(struct qeth_channel *channel, 7224a71df50SFrank Blaschka struct qeth_cmd_buffer *iob) 7234a71df50SFrank Blaschka { 7244a71df50SFrank Blaschka unsigned long flags; 7254a71df50SFrank Blaschka 7264a71df50SFrank Blaschka spin_lock_irqsave(&channel->iob_lock, flags); 7274a71df50SFrank Blaschka iob->state = BUF_STATE_FREE; 7284a71df50SFrank Blaschka iob->callback = qeth_send_control_data_cb; 7294a71df50SFrank Blaschka iob->rc = 0; 7304a71df50SFrank Blaschka spin_unlock_irqrestore(&channel->iob_lock, flags); 731039055b9SUrsula Braun wake_up(&channel->wait_q); 7324a71df50SFrank Blaschka } 7334a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_release_buffer); 7344a71df50SFrank Blaschka 7358f6637b8SJulian Wiedmann static void qeth_release_buffer_cb(struct qeth_card *card, 7368f6637b8SJulian Wiedmann struct qeth_channel *channel, 7378f6637b8SJulian Wiedmann struct qeth_cmd_buffer *iob) 7388f6637b8SJulian Wiedmann { 7398f6637b8SJulian Wiedmann qeth_release_buffer(channel, iob); 7408f6637b8SJulian Wiedmann } 7418f6637b8SJulian Wiedmann 7424a71df50SFrank Blaschka static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel) 7434a71df50SFrank Blaschka { 7444a71df50SFrank Blaschka struct qeth_cmd_buffer *buffer = NULL; 7454a71df50SFrank Blaschka unsigned long flags; 7464a71df50SFrank Blaschka 7474a71df50SFrank Blaschka spin_lock_irqsave(&channel->iob_lock, flags); 7484a71df50SFrank Blaschka buffer = __qeth_get_buffer(channel); 7494a71df50SFrank Blaschka spin_unlock_irqrestore(&channel->iob_lock, flags); 7504a71df50SFrank Blaschka return buffer; 7514a71df50SFrank Blaschka } 7524a71df50SFrank Blaschka 7534a71df50SFrank Blaschka struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *channel) 7544a71df50SFrank Blaschka { 7554a71df50SFrank Blaschka struct qeth_cmd_buffer *buffer; 7564a71df50SFrank Blaschka wait_event(channel->wait_q, 7574a71df50SFrank Blaschka ((buffer = qeth_get_buffer(channel)) != NULL)); 7584a71df50SFrank Blaschka return buffer; 7594a71df50SFrank Blaschka } 7604a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_wait_for_buffer); 7614a71df50SFrank Blaschka 7624a71df50SFrank Blaschka void qeth_clear_cmd_buffers(struct qeth_channel *channel) 7634a71df50SFrank Blaschka { 7644a71df50SFrank Blaschka int cnt; 7654a71df50SFrank Blaschka 7664a71df50SFrank Blaschka for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) 7674a71df50SFrank Blaschka qeth_release_buffer(channel, &channel->iob[cnt]); 7684a71df50SFrank Blaschka channel->io_buf_no = 0; 7694a71df50SFrank Blaschka } 7704a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers); 7714a71df50SFrank Blaschka 7728f6637b8SJulian Wiedmann static void qeth_send_control_data_cb(struct qeth_card *card, 7738f6637b8SJulian Wiedmann struct qeth_channel *channel, 7744a71df50SFrank Blaschka struct qeth_cmd_buffer *iob) 7754a71df50SFrank Blaschka { 776d19b93f4SJulian Wiedmann struct qeth_ipa_cmd *cmd = NULL; 7774a71df50SFrank Blaschka struct qeth_reply *reply, *r; 7784a71df50SFrank Blaschka unsigned long flags; 7794a71df50SFrank Blaschka int keep_reply; 7805113fec0SUrsula Braun int rc = 0; 7814a71df50SFrank Blaschka 782847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "sndctlcb"); 7835113fec0SUrsula Braun rc = qeth_check_idx_response(card, iob->data); 7845113fec0SUrsula Braun switch (rc) { 7855113fec0SUrsula Braun case 0: 7865113fec0SUrsula Braun break; 7875113fec0SUrsula Braun case -EIO: 7884a71df50SFrank Blaschka qeth_clear_ipacmd_list(card); 7894a71df50SFrank Blaschka qeth_schedule_recovery(card); 79001fc3e86SUrsula Braun /* fall through */ 7915113fec0SUrsula Braun default: 7924a71df50SFrank Blaschka goto out; 7934a71df50SFrank Blaschka } 7944a71df50SFrank Blaschka 795d19b93f4SJulian Wiedmann if (IS_IPA(iob->data)) { 796d19b93f4SJulian Wiedmann cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data); 797d19b93f4SJulian Wiedmann cmd = qeth_check_ipa_data(card, cmd); 798d782d80fSJulian Wiedmann if (!cmd) 7994a71df50SFrank Blaschka goto out; 800d782d80fSJulian Wiedmann if (IS_OSN(card) && card->osn_info.assist_cb && 801d782d80fSJulian Wiedmann cmd->hdr.command != IPA_CMD_STARTLAN) { 8024a71df50SFrank Blaschka card->osn_info.assist_cb(card->dev, cmd); 8034a71df50SFrank Blaschka goto out; 8044a71df50SFrank Blaschka } 805d782d80fSJulian Wiedmann } else { 806d782d80fSJulian Wiedmann /* non-IPA commands should only flow during initialization */ 807d782d80fSJulian Wiedmann if (card->state != CARD_STATE_DOWN) 808d782d80fSJulian Wiedmann goto out; 809d782d80fSJulian Wiedmann } 8104a71df50SFrank Blaschka 8114a71df50SFrank Blaschka spin_lock_irqsave(&card->lock, flags); 8124a71df50SFrank Blaschka list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) { 8134a71df50SFrank Blaschka if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) || 8144a71df50SFrank Blaschka ((cmd) && (reply->seqno == cmd->hdr.seqno))) { 8154a71df50SFrank Blaschka qeth_get_reply(reply); 8164a71df50SFrank Blaschka list_del_init(&reply->list); 8174a71df50SFrank Blaschka spin_unlock_irqrestore(&card->lock, flags); 8184a71df50SFrank Blaschka keep_reply = 0; 8194a71df50SFrank Blaschka if (reply->callback != NULL) { 8204a71df50SFrank Blaschka if (cmd) { 8214a71df50SFrank Blaschka reply->offset = (__u16)((char *)cmd - 8224a71df50SFrank Blaschka (char *)iob->data); 8234a71df50SFrank Blaschka keep_reply = reply->callback(card, 8244a71df50SFrank Blaschka reply, 8254a71df50SFrank Blaschka (unsigned long)cmd); 8264a71df50SFrank Blaschka } else 8274a71df50SFrank Blaschka keep_reply = reply->callback(card, 8284a71df50SFrank Blaschka reply, 8294a71df50SFrank Blaschka (unsigned long)iob); 8304a71df50SFrank Blaschka } 8314a71df50SFrank Blaschka if (cmd) 8324a71df50SFrank Blaschka reply->rc = (u16) cmd->hdr.return_code; 8334a71df50SFrank Blaschka else if (iob->rc) 8344a71df50SFrank Blaschka reply->rc = iob->rc; 8354a71df50SFrank Blaschka if (keep_reply) { 8364a71df50SFrank Blaschka spin_lock_irqsave(&card->lock, flags); 8374a71df50SFrank Blaschka list_add_tail(&reply->list, 8384a71df50SFrank Blaschka &card->cmd_waiter_list); 8394a71df50SFrank Blaschka spin_unlock_irqrestore(&card->lock, flags); 8404a71df50SFrank Blaschka } else { 8414a71df50SFrank Blaschka atomic_inc(&reply->received); 8424a71df50SFrank Blaschka wake_up(&reply->wait_q); 8434a71df50SFrank Blaschka } 8444a71df50SFrank Blaschka qeth_put_reply(reply); 8454a71df50SFrank Blaschka goto out; 8464a71df50SFrank Blaschka } 8474a71df50SFrank Blaschka } 8484a71df50SFrank Blaschka spin_unlock_irqrestore(&card->lock, flags); 8494a71df50SFrank Blaschka out: 8504a71df50SFrank Blaschka memcpy(&card->seqno.pdu_hdr_ack, 8514a71df50SFrank Blaschka QETH_PDU_HEADER_SEQ_NO(iob->data), 8524a71df50SFrank Blaschka QETH_SEQ_NO_LENGTH); 8534a71df50SFrank Blaschka qeth_release_buffer(channel, iob); 8544a71df50SFrank Blaschka } 8554a71df50SFrank Blaschka 8564a71df50SFrank Blaschka static int qeth_set_thread_start_bit(struct qeth_card *card, 8574a71df50SFrank Blaschka unsigned long thread) 8584a71df50SFrank Blaschka { 8594a71df50SFrank Blaschka unsigned long flags; 8604a71df50SFrank Blaschka 8614a71df50SFrank Blaschka spin_lock_irqsave(&card->thread_mask_lock, flags); 8624a71df50SFrank Blaschka if (!(card->thread_allowed_mask & thread) || 8634a71df50SFrank Blaschka (card->thread_start_mask & thread)) { 8644a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 8654a71df50SFrank Blaschka return -EPERM; 8664a71df50SFrank Blaschka } 8674a71df50SFrank Blaschka card->thread_start_mask |= thread; 8684a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 8694a71df50SFrank Blaschka return 0; 8704a71df50SFrank Blaschka } 8714a71df50SFrank Blaschka 8724a71df50SFrank Blaschka void qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread) 8734a71df50SFrank Blaschka { 8744a71df50SFrank Blaschka unsigned long flags; 8754a71df50SFrank Blaschka 8764a71df50SFrank Blaschka spin_lock_irqsave(&card->thread_mask_lock, flags); 8774a71df50SFrank Blaschka card->thread_start_mask &= ~thread; 8784a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 8794a71df50SFrank Blaschka wake_up(&card->wait_q); 8804a71df50SFrank Blaschka } 8814a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit); 8824a71df50SFrank Blaschka 8834a71df50SFrank Blaschka void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread) 8844a71df50SFrank Blaschka { 8854a71df50SFrank Blaschka unsigned long flags; 8864a71df50SFrank Blaschka 8874a71df50SFrank Blaschka spin_lock_irqsave(&card->thread_mask_lock, flags); 8884a71df50SFrank Blaschka card->thread_running_mask &= ~thread; 8894a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 8901063e432SJulian Wiedmann wake_up_all(&card->wait_q); 8914a71df50SFrank Blaschka } 8924a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit); 8934a71df50SFrank Blaschka 8944a71df50SFrank Blaschka static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread) 8954a71df50SFrank Blaschka { 8964a71df50SFrank Blaschka unsigned long flags; 8974a71df50SFrank Blaschka int rc = 0; 8984a71df50SFrank Blaschka 8994a71df50SFrank Blaschka spin_lock_irqsave(&card->thread_mask_lock, flags); 9004a71df50SFrank Blaschka if (card->thread_start_mask & thread) { 9014a71df50SFrank Blaschka if ((card->thread_allowed_mask & thread) && 9024a71df50SFrank Blaschka !(card->thread_running_mask & thread)) { 9034a71df50SFrank Blaschka rc = 1; 9044a71df50SFrank Blaschka card->thread_start_mask &= ~thread; 9054a71df50SFrank Blaschka card->thread_running_mask |= thread; 9064a71df50SFrank Blaschka } else 9074a71df50SFrank Blaschka rc = -EPERM; 9084a71df50SFrank Blaschka } 9094a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 9104a71df50SFrank Blaschka return rc; 9114a71df50SFrank Blaschka } 9124a71df50SFrank Blaschka 9134a71df50SFrank Blaschka int qeth_do_run_thread(struct qeth_card *card, unsigned long thread) 9144a71df50SFrank Blaschka { 9154a71df50SFrank Blaschka int rc = 0; 9164a71df50SFrank Blaschka 9174a71df50SFrank Blaschka wait_event(card->wait_q, 9184a71df50SFrank Blaschka (rc = __qeth_do_run_thread(card, thread)) >= 0); 9194a71df50SFrank Blaschka return rc; 9204a71df50SFrank Blaschka } 9214a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_do_run_thread); 9224a71df50SFrank Blaschka 9234a71df50SFrank Blaschka void qeth_schedule_recovery(struct qeth_card *card) 9244a71df50SFrank Blaschka { 925847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "startrec"); 9264a71df50SFrank Blaschka if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0) 9274a71df50SFrank Blaschka schedule_work(&card->kernel_thread_starter); 9284a71df50SFrank Blaschka } 9294a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_schedule_recovery); 9304a71df50SFrank Blaschka 9318d908eb0SJulian Wiedmann static int qeth_get_problem(struct qeth_card *card, struct ccw_device *cdev, 9328d908eb0SJulian Wiedmann struct irb *irb) 9334a71df50SFrank Blaschka { 9344a71df50SFrank Blaschka int dstat, cstat; 9354a71df50SFrank Blaschka char *sense; 9364a71df50SFrank Blaschka 9374a71df50SFrank Blaschka sense = (char *) irb->ecw; 93823d805b6SPeter Oberparleiter cstat = irb->scsw.cmd.cstat; 93923d805b6SPeter Oberparleiter dstat = irb->scsw.cmd.dstat; 9404a71df50SFrank Blaschka 9414a71df50SFrank Blaschka if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK | 9424a71df50SFrank Blaschka SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK | 9434a71df50SFrank Blaschka SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) { 944847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "CGENCHK"); 94574eacdb9SFrank Blaschka dev_warn(&cdev->dev, "The qeth device driver " 94674eacdb9SFrank Blaschka "failed to recover an error on the device\n"); 947e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "check on channel %x with dstat=%#x, cstat=%#x\n", 948e19e5be8SJulian Wiedmann CCW_DEVID(cdev), dstat, cstat); 9494a71df50SFrank Blaschka print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET, 9504a71df50SFrank Blaschka 16, 1, irb, 64, 1); 9514a71df50SFrank Blaschka return 1; 9524a71df50SFrank Blaschka } 9534a71df50SFrank Blaschka 9544a71df50SFrank Blaschka if (dstat & DEV_STAT_UNIT_CHECK) { 9554a71df50SFrank Blaschka if (sense[SENSE_RESETTING_EVENT_BYTE] & 9564a71df50SFrank Blaschka SENSE_RESETTING_EVENT_FLAG) { 957847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "REVIND"); 9584a71df50SFrank Blaschka return 1; 9594a71df50SFrank Blaschka } 9604a71df50SFrank Blaschka if (sense[SENSE_COMMAND_REJECT_BYTE] & 9614a71df50SFrank Blaschka SENSE_COMMAND_REJECT_FLAG) { 962847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "CMDREJi"); 96328a7e4c9SUrsula Braun return 1; 9644a71df50SFrank Blaschka } 9654a71df50SFrank Blaschka if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) { 966847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "AFFE"); 9674a71df50SFrank Blaschka return 1; 9684a71df50SFrank Blaschka } 9694a71df50SFrank Blaschka if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) { 970847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "ZEROSEN"); 9714a71df50SFrank Blaschka return 0; 9724a71df50SFrank Blaschka } 973847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "DGENCHK"); 9744a71df50SFrank Blaschka return 1; 9754a71df50SFrank Blaschka } 9764a71df50SFrank Blaschka return 0; 9774a71df50SFrank Blaschka } 9784a71df50SFrank Blaschka 9798d908eb0SJulian Wiedmann static long qeth_check_irb_error(struct qeth_card *card, 9808d908eb0SJulian Wiedmann struct ccw_device *cdev, unsigned long intparm, 9818d908eb0SJulian Wiedmann struct irb *irb) 9824a71df50SFrank Blaschka { 9838d908eb0SJulian Wiedmann if (!IS_ERR(irb)) 9844a71df50SFrank Blaschka return 0; 9854a71df50SFrank Blaschka 9864a71df50SFrank Blaschka switch (PTR_ERR(irb)) { 9874a71df50SFrank Blaschka case -EIO: 988e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "i/o-error on channel %x\n", 989e19e5be8SJulian Wiedmann CCW_DEVID(cdev)); 990847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "ckirberr"); 991847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 2, " rc%d", -EIO); 9924a71df50SFrank Blaschka break; 9934a71df50SFrank Blaschka case -ETIMEDOUT: 99474eacdb9SFrank Blaschka dev_warn(&cdev->dev, "A hardware operation timed out" 99574eacdb9SFrank Blaschka " on the device\n"); 996847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "ckirberr"); 997847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 2, " rc%d", -ETIMEDOUT); 9984a71df50SFrank Blaschka if (intparm == QETH_RCD_PARM) { 999e95051ffSRickard Strandqvist if (card->data.ccwdev == cdev) { 10004a71df50SFrank Blaschka card->data.state = CH_STATE_DOWN; 10014a71df50SFrank Blaschka wake_up(&card->wait_q); 10024a71df50SFrank Blaschka } 10034a71df50SFrank Blaschka } 10044a71df50SFrank Blaschka break; 10054a71df50SFrank Blaschka default: 1006e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "unknown error %ld on channel %x\n", 1007e19e5be8SJulian Wiedmann PTR_ERR(irb), CCW_DEVID(cdev)); 1008847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "ckirberr"); 1009847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, " rc???"); 10104a71df50SFrank Blaschka } 10114a71df50SFrank Blaschka return PTR_ERR(irb); 10124a71df50SFrank Blaschka } 10134a71df50SFrank Blaschka 10144a71df50SFrank Blaschka static void qeth_irq(struct ccw_device *cdev, unsigned long intparm, 10154a71df50SFrank Blaschka struct irb *irb) 10164a71df50SFrank Blaschka { 10174a71df50SFrank Blaschka int rc; 10184a71df50SFrank Blaschka int cstat, dstat; 1019db71bbbdSJulian Wiedmann struct qeth_cmd_buffer *iob = NULL; 10208d908eb0SJulian Wiedmann struct ccwgroup_device *gdev; 10214a71df50SFrank Blaschka struct qeth_channel *channel; 10224a71df50SFrank Blaschka struct qeth_card *card; 10234a71df50SFrank Blaschka 10248d908eb0SJulian Wiedmann /* while we hold the ccwdev lock, this stays valid: */ 10258d908eb0SJulian Wiedmann gdev = dev_get_drvdata(&cdev->dev); 10268d908eb0SJulian Wiedmann card = dev_get_drvdata(&gdev->dev); 10274a71df50SFrank Blaschka if (!card) 10284a71df50SFrank Blaschka return; 10294a71df50SFrank Blaschka 1030847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "irq"); 1031847a50fdSCarsten Otte 10324a71df50SFrank Blaschka if (card->read.ccwdev == cdev) { 10334a71df50SFrank Blaschka channel = &card->read; 1034847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "read"); 10354a71df50SFrank Blaschka } else if (card->write.ccwdev == cdev) { 10364a71df50SFrank Blaschka channel = &card->write; 1037847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "write"); 10384a71df50SFrank Blaschka } else { 10394a71df50SFrank Blaschka channel = &card->data; 1040847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "data"); 10414a71df50SFrank Blaschka } 1042db71bbbdSJulian Wiedmann 1043db71bbbdSJulian Wiedmann if (qeth_intparm_is_iob(intparm)) 1044db71bbbdSJulian Wiedmann iob = (struct qeth_cmd_buffer *) __va((addr_t)intparm); 1045db71bbbdSJulian Wiedmann 10468d908eb0SJulian Wiedmann if (qeth_check_irb_error(card, cdev, intparm, irb)) { 1047db71bbbdSJulian Wiedmann /* IO was terminated, free its resources. */ 1048db71bbbdSJulian Wiedmann if (iob) 1049db71bbbdSJulian Wiedmann qeth_release_buffer(iob->channel, iob); 1050db71bbbdSJulian Wiedmann atomic_set(&channel->irq_pending, 0); 1051db71bbbdSJulian Wiedmann wake_up(&card->wait_q); 1052db71bbbdSJulian Wiedmann return; 1053db71bbbdSJulian Wiedmann } 1054db71bbbdSJulian Wiedmann 10554a71df50SFrank Blaschka atomic_set(&channel->irq_pending, 0); 10564a71df50SFrank Blaschka 105723d805b6SPeter Oberparleiter if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC)) 10584a71df50SFrank Blaschka channel->state = CH_STATE_STOPPED; 10594a71df50SFrank Blaschka 106023d805b6SPeter Oberparleiter if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC)) 10614a71df50SFrank Blaschka channel->state = CH_STATE_HALTED; 10624a71df50SFrank Blaschka 10634a71df50SFrank Blaschka /*let's wake up immediately on data channel*/ 10644a71df50SFrank Blaschka if ((channel == &card->data) && (intparm != 0) && 10654a71df50SFrank Blaschka (intparm != QETH_RCD_PARM)) 10664a71df50SFrank Blaschka goto out; 10674a71df50SFrank Blaschka 10684a71df50SFrank Blaschka if (intparm == QETH_CLEAR_CHANNEL_PARM) { 1069847a50fdSCarsten Otte QETH_CARD_TEXT(card, 6, "clrchpar"); 10704a71df50SFrank Blaschka /* we don't have to handle this further */ 10714a71df50SFrank Blaschka intparm = 0; 10724a71df50SFrank Blaschka } 10734a71df50SFrank Blaschka if (intparm == QETH_HALT_CHANNEL_PARM) { 1074847a50fdSCarsten Otte QETH_CARD_TEXT(card, 6, "hltchpar"); 10754a71df50SFrank Blaschka /* we don't have to handle this further */ 10764a71df50SFrank Blaschka intparm = 0; 10774a71df50SFrank Blaschka } 1078db71bbbdSJulian Wiedmann 1079db71bbbdSJulian Wiedmann cstat = irb->scsw.cmd.cstat; 1080db71bbbdSJulian Wiedmann dstat = irb->scsw.cmd.dstat; 1081db71bbbdSJulian Wiedmann 10824a71df50SFrank Blaschka if ((dstat & DEV_STAT_UNIT_EXCEP) || 10834a71df50SFrank Blaschka (dstat & DEV_STAT_UNIT_CHECK) || 10844a71df50SFrank Blaschka (cstat)) { 10854a71df50SFrank Blaschka if (irb->esw.esw0.erw.cons) { 108674eacdb9SFrank Blaschka dev_warn(&channel->ccwdev->dev, 108774eacdb9SFrank Blaschka "The qeth device driver failed to recover " 108874eacdb9SFrank Blaschka "an error on the device\n"); 1089e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "sense data available on channel %x: cstat %#X dstat %#X\n", 1090e19e5be8SJulian Wiedmann CCW_DEVID(channel->ccwdev), cstat, 1091e19e5be8SJulian Wiedmann dstat); 10924a71df50SFrank Blaschka print_hex_dump(KERN_WARNING, "qeth: irb ", 10934a71df50SFrank Blaschka DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1); 10944a71df50SFrank Blaschka print_hex_dump(KERN_WARNING, "qeth: sense data ", 10954a71df50SFrank Blaschka DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1); 10964a71df50SFrank Blaschka } 10974a71df50SFrank Blaschka if (intparm == QETH_RCD_PARM) { 10984a71df50SFrank Blaschka channel->state = CH_STATE_DOWN; 10994a71df50SFrank Blaschka goto out; 11004a71df50SFrank Blaschka } 11018d908eb0SJulian Wiedmann rc = qeth_get_problem(card, cdev, irb); 11024a71df50SFrank Blaschka if (rc) { 1103a6c3d939SJulian Wiedmann card->read_or_write_problem = 1; 11045065b2ddSJulian Wiedmann if (iob) 11055065b2ddSJulian Wiedmann qeth_release_buffer(iob->channel, iob); 110628a7e4c9SUrsula Braun qeth_clear_ipacmd_list(card); 11074a71df50SFrank Blaschka qeth_schedule_recovery(card); 11084a71df50SFrank Blaschka goto out; 11094a71df50SFrank Blaschka } 11104a71df50SFrank Blaschka } 11114a71df50SFrank Blaschka 11124a71df50SFrank Blaschka if (intparm == QETH_RCD_PARM) { 11134a71df50SFrank Blaschka channel->state = CH_STATE_RCD_DONE; 11144a71df50SFrank Blaschka goto out; 11154a71df50SFrank Blaschka } 11164a71df50SFrank Blaschka if (channel == &card->data) 11174a71df50SFrank Blaschka return; 11184a71df50SFrank Blaschka if (channel == &card->read && 11194a71df50SFrank Blaschka channel->state == CH_STATE_UP) 112017bf8c9bSJulian Wiedmann __qeth_issue_next_read(card); 11214a71df50SFrank Blaschka 1122db71bbbdSJulian Wiedmann if (iob && iob->callback) 11238f6637b8SJulian Wiedmann iob->callback(card, iob->channel, iob); 11244a71df50SFrank Blaschka 11254a71df50SFrank Blaschka out: 11264a71df50SFrank Blaschka wake_up(&card->wait_q); 11274a71df50SFrank Blaschka return; 11284a71df50SFrank Blaschka } 11294a71df50SFrank Blaschka 1130b3332930SFrank Blaschka static void qeth_notify_skbs(struct qeth_qdio_out_q *q, 1131b3332930SFrank Blaschka struct qeth_qdio_out_buffer *buf, 1132b3332930SFrank Blaschka enum iucv_tx_notify notification) 1133b3332930SFrank Blaschka { 1134b3332930SFrank Blaschka struct sk_buff *skb; 1135b3332930SFrank Blaschka 1136dc149e37SJulian Wiedmann skb_queue_walk(&buf->skb_list, skb) { 1137b3332930SFrank Blaschka QETH_CARD_TEXT_(q->card, 5, "skbn%d", notification); 1138b3332930SFrank Blaschka QETH_CARD_TEXT_(q->card, 5, "%lx", (long) skb); 11396a3123d0SJulian Wiedmann if (skb->protocol == htons(ETH_P_AF_IUCV) && skb->sk) 11406a3123d0SJulian Wiedmann iucv_sk(skb->sk)->sk_txnotify(skb, notification); 1141b3332930SFrank Blaschka } 1142b3332930SFrank Blaschka } 1143b3332930SFrank Blaschka 1144b3332930SFrank Blaschka static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf) 1145b3332930SFrank Blaschka { 114672861ae7SEinar Lueck /* release may never happen from within CQ tasklet scope */ 114718af5c17SStefan Raspl WARN_ON_ONCE(atomic_read(&buf->state) == QETH_QDIO_BUF_IN_CQ); 1148b3332930SFrank Blaschka 11496a3123d0SJulian Wiedmann if (atomic_read(&buf->state) == QETH_QDIO_BUF_PENDING) 11506a3123d0SJulian Wiedmann qeth_notify_skbs(buf->q, buf, TX_NOTIFY_GENERALERROR); 11516a3123d0SJulian Wiedmann 1152dc149e37SJulian Wiedmann __skb_queue_purge(&buf->skb_list); 1153b3332930SFrank Blaschka } 1154b3332930SFrank Blaschka 1155b67d801fSUrsula Braun static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue, 11563b346c18SJulian Wiedmann struct qeth_qdio_out_buffer *buf) 11574a71df50SFrank Blaschka { 11584a71df50SFrank Blaschka int i; 11594a71df50SFrank Blaschka 11604a71df50SFrank Blaschka /* is PCI flag set on buffer? */ 11613ec90878SJan Glauber if (buf->buffer->element[0].sflags & SBAL_SFLAGS0_PCI_REQ) 11624a71df50SFrank Blaschka atomic_dec(&queue->set_pci_flags_count); 11634a71df50SFrank Blaschka 1164b3332930SFrank Blaschka qeth_release_skbs(buf); 11653b346c18SJulian Wiedmann 11664a71df50SFrank Blaschka for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) { 1167683d718aSFrank Blaschka if (buf->buffer->element[i].addr && buf->is_header[i]) 1168683d718aSFrank Blaschka kmem_cache_free(qeth_core_header_cache, 1169683d718aSFrank Blaschka buf->buffer->element[i].addr); 1170683d718aSFrank Blaschka buf->is_header[i] = 0; 11714a71df50SFrank Blaschka } 11723b346c18SJulian Wiedmann 11733b346c18SJulian Wiedmann qeth_scrub_qdio_buffer(buf->buffer, 11743b346c18SJulian Wiedmann QETH_MAX_BUFFER_ELEMENTS(queue->card)); 11754a71df50SFrank Blaschka buf->next_element_to_fill = 0; 11763b346c18SJulian Wiedmann atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY); 11770da9581dSEinar Lueck } 11780da9581dSEinar Lueck 11790da9581dSEinar Lueck static void qeth_clear_outq_buffers(struct qeth_qdio_out_q *q, int free) 11800da9581dSEinar Lueck { 11810da9581dSEinar Lueck int j; 11820da9581dSEinar Lueck 11830da9581dSEinar Lueck for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { 11840da9581dSEinar Lueck if (!q->bufs[j]) 11850da9581dSEinar Lueck continue; 118672861ae7SEinar Lueck qeth_cleanup_handled_pending(q, j, 1); 11873b346c18SJulian Wiedmann qeth_clear_output_buffer(q, q->bufs[j]); 11880da9581dSEinar Lueck if (free) { 11890da9581dSEinar Lueck kmem_cache_free(qeth_qdio_outbuf_cache, q->bufs[j]); 11900da9581dSEinar Lueck q->bufs[j] = NULL; 11910da9581dSEinar Lueck } 11920da9581dSEinar Lueck } 11934a71df50SFrank Blaschka } 11944a71df50SFrank Blaschka 11954a71df50SFrank Blaschka void qeth_clear_qdio_buffers(struct qeth_card *card) 11964a71df50SFrank Blaschka { 11970da9581dSEinar Lueck int i; 11984a71df50SFrank Blaschka 1199847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "clearqdbf"); 12004a71df50SFrank Blaschka /* clear outbound buffers to free skbs */ 12010da9581dSEinar Lueck for (i = 0; i < card->qdio.no_out_queues; ++i) { 12024a71df50SFrank Blaschka if (card->qdio.out_qs[i]) { 12030da9581dSEinar Lueck qeth_clear_outq_buffers(card->qdio.out_qs[i], 0); 12040da9581dSEinar Lueck } 12054a71df50SFrank Blaschka } 12064a71df50SFrank Blaschka } 12074a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers); 12084a71df50SFrank Blaschka 12094a71df50SFrank Blaschka static void qeth_free_buffer_pool(struct qeth_card *card) 12104a71df50SFrank Blaschka { 12114a71df50SFrank Blaschka struct qeth_buffer_pool_entry *pool_entry, *tmp; 12124a71df50SFrank Blaschka int i = 0; 12134a71df50SFrank Blaschka list_for_each_entry_safe(pool_entry, tmp, 12144a71df50SFrank Blaschka &card->qdio.init_pool.entry_list, init_list){ 12154a71df50SFrank Blaschka for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) 12164a71df50SFrank Blaschka free_page((unsigned long)pool_entry->elements[i]); 12174a71df50SFrank Blaschka list_del(&pool_entry->init_list); 12184a71df50SFrank Blaschka kfree(pool_entry); 12194a71df50SFrank Blaschka } 12204a71df50SFrank Blaschka } 12214a71df50SFrank Blaschka 12224a71df50SFrank Blaschka static void qeth_clean_channel(struct qeth_channel *channel) 12234a71df50SFrank Blaschka { 1224121ca39aSJulian Wiedmann struct ccw_device *cdev = channel->ccwdev; 12254a71df50SFrank Blaschka int cnt; 12264a71df50SFrank Blaschka 1227d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "freech"); 1228121ca39aSJulian Wiedmann 1229121ca39aSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(cdev)); 1230121ca39aSJulian Wiedmann cdev->handler = NULL; 1231121ca39aSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(cdev)); 1232121ca39aSJulian Wiedmann 12334a71df50SFrank Blaschka for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) 12344a71df50SFrank Blaschka kfree(channel->iob[cnt].data); 1235f15cdaf2SJulian Wiedmann kfree(channel->ccw); 12364a71df50SFrank Blaschka } 12374a71df50SFrank Blaschka 1238121ca39aSJulian Wiedmann static int qeth_setup_channel(struct qeth_channel *channel, bool alloc_buffers) 1239121ca39aSJulian Wiedmann { 1240121ca39aSJulian Wiedmann struct ccw_device *cdev = channel->ccwdev; 1241121ca39aSJulian Wiedmann int cnt; 1242121ca39aSJulian Wiedmann 1243121ca39aSJulian Wiedmann QETH_DBF_TEXT(SETUP, 2, "setupch"); 1244121ca39aSJulian Wiedmann 1245121ca39aSJulian Wiedmann channel->ccw = kmalloc(sizeof(struct ccw1), GFP_KERNEL | GFP_DMA); 1246121ca39aSJulian Wiedmann if (!channel->ccw) 1247121ca39aSJulian Wiedmann return -ENOMEM; 1248121ca39aSJulian Wiedmann channel->state = CH_STATE_DOWN; 1249121ca39aSJulian Wiedmann atomic_set(&channel->irq_pending, 0); 1250121ca39aSJulian Wiedmann init_waitqueue_head(&channel->wait_q); 1251121ca39aSJulian Wiedmann 1252121ca39aSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(cdev)); 1253121ca39aSJulian Wiedmann cdev->handler = qeth_irq; 1254121ca39aSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(cdev)); 1255121ca39aSJulian Wiedmann 1256121ca39aSJulian Wiedmann if (!alloc_buffers) 1257121ca39aSJulian Wiedmann return 0; 1258121ca39aSJulian Wiedmann 1259121ca39aSJulian Wiedmann for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) { 1260500abbf0SJulian Wiedmann channel->iob[cnt].data = kmalloc(QETH_BUFSIZE, 1261500abbf0SJulian Wiedmann GFP_KERNEL | GFP_DMA); 1262121ca39aSJulian Wiedmann if (channel->iob[cnt].data == NULL) 1263121ca39aSJulian Wiedmann break; 1264121ca39aSJulian Wiedmann channel->iob[cnt].state = BUF_STATE_FREE; 1265121ca39aSJulian Wiedmann channel->iob[cnt].channel = channel; 1266121ca39aSJulian Wiedmann channel->iob[cnt].callback = qeth_send_control_data_cb; 1267121ca39aSJulian Wiedmann channel->iob[cnt].rc = 0; 1268121ca39aSJulian Wiedmann } 1269121ca39aSJulian Wiedmann if (cnt < QETH_CMD_BUFFER_NO) { 1270121ca39aSJulian Wiedmann qeth_clean_channel(channel); 1271121ca39aSJulian Wiedmann return -ENOMEM; 1272121ca39aSJulian Wiedmann } 1273121ca39aSJulian Wiedmann channel->io_buf_no = 0; 1274121ca39aSJulian Wiedmann spin_lock_init(&channel->iob_lock); 1275121ca39aSJulian Wiedmann 1276121ca39aSJulian Wiedmann return 0; 1277121ca39aSJulian Wiedmann } 1278121ca39aSJulian Wiedmann 1279725b9c04SSebastian Ott static void qeth_set_single_write_queues(struct qeth_card *card) 1280725b9c04SSebastian Ott { 1281725b9c04SSebastian Ott if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) && 1282725b9c04SSebastian Ott (card->qdio.no_out_queues == 4)) 1283725b9c04SSebastian Ott qeth_free_qdio_buffers(card); 1284725b9c04SSebastian Ott 1285725b9c04SSebastian Ott card->qdio.no_out_queues = 1; 1286725b9c04SSebastian Ott if (card->qdio.default_out_queue != 0) 1287725b9c04SSebastian Ott dev_info(&card->gdev->dev, "Priority Queueing not supported\n"); 1288725b9c04SSebastian Ott 1289725b9c04SSebastian Ott card->qdio.default_out_queue = 0; 1290725b9c04SSebastian Ott } 1291725b9c04SSebastian Ott 1292725b9c04SSebastian Ott static void qeth_set_multiple_write_queues(struct qeth_card *card) 1293725b9c04SSebastian Ott { 1294725b9c04SSebastian Ott if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) && 1295725b9c04SSebastian Ott (card->qdio.no_out_queues == 1)) { 1296725b9c04SSebastian Ott qeth_free_qdio_buffers(card); 1297725b9c04SSebastian Ott card->qdio.default_out_queue = 2; 1298725b9c04SSebastian Ott } 1299725b9c04SSebastian Ott card->qdio.no_out_queues = 4; 1300725b9c04SSebastian Ott } 1301725b9c04SSebastian Ott 1302725b9c04SSebastian Ott static void qeth_update_from_chp_desc(struct qeth_card *card) 13034a71df50SFrank Blaschka { 13044a71df50SFrank Blaschka struct ccw_device *ccwdev; 1305ded27d8dSSebastian Ott struct channel_path_desc_fmt0 *chp_dsc; 13064a71df50SFrank Blaschka 13075113fec0SUrsula Braun QETH_DBF_TEXT(SETUP, 2, "chp_desc"); 13084a71df50SFrank Blaschka 13094a71df50SFrank Blaschka ccwdev = card->data.ccwdev; 1310725b9c04SSebastian Ott chp_dsc = ccw_device_get_chp_desc(ccwdev, 0); 1311725b9c04SSebastian Ott if (!chp_dsc) 1312725b9c04SSebastian Ott goto out; 1313725b9c04SSebastian Ott 1314d0ff1f52SUrsula Braun card->info.func_level = 0x4100 + chp_dsc->desc; 1315725b9c04SSebastian Ott if (card->info.type == QETH_CARD_TYPE_IQD) 1316725b9c04SSebastian Ott goto out; 1317725b9c04SSebastian Ott 1318725b9c04SSebastian Ott /* CHPP field bit 6 == 1 -> single queue */ 1319725b9c04SSebastian Ott if ((chp_dsc->chpp & 0x02) == 0x02) 1320725b9c04SSebastian Ott qeth_set_single_write_queues(card); 1321725b9c04SSebastian Ott else 1322725b9c04SSebastian Ott qeth_set_multiple_write_queues(card); 1323725b9c04SSebastian Ott out: 1324d0ff1f52SUrsula Braun kfree(chp_dsc); 13255113fec0SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "nr:%x", card->qdio.no_out_queues); 13265113fec0SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "lvl:%02x", card->info.func_level); 13274a71df50SFrank Blaschka } 13284a71df50SFrank Blaschka 13294a71df50SFrank Blaschka static void qeth_init_qdio_info(struct qeth_card *card) 13304a71df50SFrank Blaschka { 1331d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 4, "intqdinf"); 13324a71df50SFrank Blaschka atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); 133395f4d8b7SJulian Wiedmann card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT; 133495f4d8b7SJulian Wiedmann card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; 133595f4d8b7SJulian Wiedmann card->qdio.no_out_queues = QETH_MAX_QUEUES; 133695f4d8b7SJulian Wiedmann 13374a71df50SFrank Blaschka /* inbound */ 1338ed2e93efSJulian Wiedmann card->qdio.no_in_queues = 1; 13394a71df50SFrank Blaschka card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT; 1340dcf4ae2dSFrank Blaschka if (card->info.type == QETH_CARD_TYPE_IQD) 1341dcf4ae2dSFrank Blaschka card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_HSDEFAULT; 1342dcf4ae2dSFrank Blaschka else 13434a71df50SFrank Blaschka card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT; 13444a71df50SFrank Blaschka card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count; 13454a71df50SFrank Blaschka INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list); 13464a71df50SFrank Blaschka INIT_LIST_HEAD(&card->qdio.init_pool.entry_list); 13474a71df50SFrank Blaschka } 13484a71df50SFrank Blaschka 134995f4d8b7SJulian Wiedmann static void qeth_set_initial_options(struct qeth_card *card) 13504a71df50SFrank Blaschka { 13514a71df50SFrank Blaschka card->options.route4.type = NO_ROUTER; 13524a71df50SFrank Blaschka card->options.route6.type = NO_ROUTER; 13534a71df50SFrank Blaschka card->options.rx_sg_cb = QETH_RX_SG_CB; 1354d64ecc22SEinar Lueck card->options.isolation = ISOLATION_MODE_NONE; 13550da9581dSEinar Lueck card->options.cq = QETH_CQ_DISABLED; 13564fda3354SJulian Wiedmann card->options.layer = QETH_DISCIPLINE_UNDETERMINED; 13574a71df50SFrank Blaschka } 13584a71df50SFrank Blaschka 13594a71df50SFrank Blaschka static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread) 13604a71df50SFrank Blaschka { 13614a71df50SFrank Blaschka unsigned long flags; 13624a71df50SFrank Blaschka int rc = 0; 13634a71df50SFrank Blaschka 13644a71df50SFrank Blaschka spin_lock_irqsave(&card->thread_mask_lock, flags); 1365847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 4, " %02x%02x%02x", 13664a71df50SFrank Blaschka (u8) card->thread_start_mask, 13674a71df50SFrank Blaschka (u8) card->thread_allowed_mask, 13684a71df50SFrank Blaschka (u8) card->thread_running_mask); 13694a71df50SFrank Blaschka rc = (card->thread_start_mask & thread); 13704a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 13714a71df50SFrank Blaschka return rc; 13724a71df50SFrank Blaschka } 13734a71df50SFrank Blaschka 13744a71df50SFrank Blaschka static void qeth_start_kernel_thread(struct work_struct *work) 13754a71df50SFrank Blaschka { 13763f36b890SFrank Blaschka struct task_struct *ts; 13774a71df50SFrank Blaschka struct qeth_card *card = container_of(work, struct qeth_card, 13784a71df50SFrank Blaschka kernel_thread_starter); 1379847a50fdSCarsten Otte QETH_CARD_TEXT(card , 2, "strthrd"); 13804a71df50SFrank Blaschka 13814a71df50SFrank Blaschka if (card->read.state != CH_STATE_UP && 13824a71df50SFrank Blaschka card->write.state != CH_STATE_UP) 13834a71df50SFrank Blaschka return; 13843f36b890SFrank Blaschka if (qeth_do_start_thread(card, QETH_RECOVER_THREAD)) { 1385c041f2d4SSebastian Ott ts = kthread_run(card->discipline->recover, (void *)card, 13864a71df50SFrank Blaschka "qeth_recover"); 13873f36b890SFrank Blaschka if (IS_ERR(ts)) { 13883f36b890SFrank Blaschka qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); 13893f36b890SFrank Blaschka qeth_clear_thread_running_bit(card, 13903f36b890SFrank Blaschka QETH_RECOVER_THREAD); 13913f36b890SFrank Blaschka } 13923f36b890SFrank Blaschka } 13934a71df50SFrank Blaschka } 13944a71df50SFrank Blaschka 1395bca51650SThomas Richter static void qeth_buffer_reclaim_work(struct work_struct *); 139695f4d8b7SJulian Wiedmann static void qeth_setup_card(struct qeth_card *card) 13974a71df50SFrank Blaschka { 1398d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "setupcrd"); 1399d11ba0c4SPeter Tiedemann QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); 14004a71df50SFrank Blaschka 140195f4d8b7SJulian Wiedmann card->info.type = CARD_RDEV(card)->id.driver_info; 14024a71df50SFrank Blaschka card->state = CARD_STATE_DOWN; 14034a71df50SFrank Blaschka spin_lock_init(&card->mclock); 14044a71df50SFrank Blaschka spin_lock_init(&card->lock); 14054a71df50SFrank Blaschka spin_lock_init(&card->ip_lock); 14064a71df50SFrank Blaschka spin_lock_init(&card->thread_mask_lock); 1407c4949f07SFrank Blaschka mutex_init(&card->conf_mutex); 14089dc48cccSUrsula Braun mutex_init(&card->discipline_mutex); 14094a71df50SFrank Blaschka INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread); 14104a71df50SFrank Blaschka INIT_LIST_HEAD(&card->cmd_waiter_list); 14114a71df50SFrank Blaschka init_waitqueue_head(&card->wait_q); 141295f4d8b7SJulian Wiedmann qeth_set_initial_options(card); 14134a71df50SFrank Blaschka /* IP address takeover */ 14144a71df50SFrank Blaschka INIT_LIST_HEAD(&card->ipato.entries); 14154a71df50SFrank Blaschka qeth_init_qdio_info(card); 1416b3332930SFrank Blaschka INIT_DELAYED_WORK(&card->buffer_reclaim_work, qeth_buffer_reclaim_work); 14170f54761dSStefan Raspl INIT_WORK(&card->close_dev_work, qeth_close_dev_handler); 14184a71df50SFrank Blaschka } 14194a71df50SFrank Blaschka 14206bcac508SMartin Schwidefsky static void qeth_core_sl_print(struct seq_file *m, struct service_level *slr) 14216bcac508SMartin Schwidefsky { 14226bcac508SMartin Schwidefsky struct qeth_card *card = container_of(slr, struct qeth_card, 14236bcac508SMartin Schwidefsky qeth_service_level); 14240d788c7dSKlaus-Dieter Wacker if (card->info.mcl_level[0]) 14250d788c7dSKlaus-Dieter Wacker seq_printf(m, "qeth: %s firmware level %s\n", 14260d788c7dSKlaus-Dieter Wacker CARD_BUS_ID(card), card->info.mcl_level); 14276bcac508SMartin Schwidefsky } 14286bcac508SMartin Schwidefsky 1429121ca39aSJulian Wiedmann static struct qeth_card *qeth_alloc_card(struct ccwgroup_device *gdev) 14304a71df50SFrank Blaschka { 14314a71df50SFrank Blaschka struct qeth_card *card; 14324a71df50SFrank Blaschka 1433d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "alloccrd"); 1434f15cdaf2SJulian Wiedmann card = kzalloc(sizeof(*card), GFP_KERNEL); 14354a71df50SFrank Blaschka if (!card) 143676b11f8eSUrsula Braun goto out; 1437d11ba0c4SPeter Tiedemann QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); 1438121ca39aSJulian Wiedmann 1439121ca39aSJulian Wiedmann card->gdev = gdev; 1440a2eb0ad5SJulian Wiedmann dev_set_drvdata(&gdev->dev, card); 1441121ca39aSJulian Wiedmann CARD_RDEV(card) = gdev->cdev[0]; 1442121ca39aSJulian Wiedmann CARD_WDEV(card) = gdev->cdev[1]; 1443121ca39aSJulian Wiedmann CARD_DDEV(card) = gdev->cdev[2]; 1444c0a2e4d1SJulian Wiedmann 1445c0a2e4d1SJulian Wiedmann card->event_wq = alloc_ordered_workqueue("%s", 0, dev_name(&gdev->dev)); 1446c0a2e4d1SJulian Wiedmann if (!card->event_wq) 1447c0a2e4d1SJulian Wiedmann goto out_wq; 144824142fd8SJulian Wiedmann if (qeth_setup_channel(&card->read, true)) 144976b11f8eSUrsula Braun goto out_ip; 145024142fd8SJulian Wiedmann if (qeth_setup_channel(&card->write, true)) 145176b11f8eSUrsula Braun goto out_channel; 145224142fd8SJulian Wiedmann if (qeth_setup_channel(&card->data, false)) 145324142fd8SJulian Wiedmann goto out_data; 14546bcac508SMartin Schwidefsky card->qeth_service_level.seq_print = qeth_core_sl_print; 14556bcac508SMartin Schwidefsky register_service_level(&card->qeth_service_level); 14564a71df50SFrank Blaschka return card; 145776b11f8eSUrsula Braun 145824142fd8SJulian Wiedmann out_data: 145924142fd8SJulian Wiedmann qeth_clean_channel(&card->write); 146076b11f8eSUrsula Braun out_channel: 146176b11f8eSUrsula Braun qeth_clean_channel(&card->read); 146276b11f8eSUrsula Braun out_ip: 1463c0a2e4d1SJulian Wiedmann destroy_workqueue(card->event_wq); 1464c0a2e4d1SJulian Wiedmann out_wq: 1465a2eb0ad5SJulian Wiedmann dev_set_drvdata(&gdev->dev, NULL); 146676b11f8eSUrsula Braun kfree(card); 146776b11f8eSUrsula Braun out: 146876b11f8eSUrsula Braun return NULL; 14694a71df50SFrank Blaschka } 14704a71df50SFrank Blaschka 14718d908eb0SJulian Wiedmann static int qeth_clear_channel(struct qeth_card *card, 14728d908eb0SJulian Wiedmann struct qeth_channel *channel) 14734a71df50SFrank Blaschka { 14744a71df50SFrank Blaschka int rc; 14754a71df50SFrank Blaschka 1476847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "clearch"); 1477ed47155bSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(channel->ccwdev)); 14784a71df50SFrank Blaschka rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM); 1479ed47155bSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(channel->ccwdev)); 14804a71df50SFrank Blaschka 14814a71df50SFrank Blaschka if (rc) 14824a71df50SFrank Blaschka return rc; 14834a71df50SFrank Blaschka rc = wait_event_interruptible_timeout(card->wait_q, 14844a71df50SFrank Blaschka channel->state == CH_STATE_STOPPED, QETH_TIMEOUT); 14854a71df50SFrank Blaschka if (rc == -ERESTARTSYS) 14864a71df50SFrank Blaschka return rc; 14874a71df50SFrank Blaschka if (channel->state != CH_STATE_STOPPED) 14884a71df50SFrank Blaschka return -ETIME; 14894a71df50SFrank Blaschka channel->state = CH_STATE_DOWN; 14904a71df50SFrank Blaschka return 0; 14914a71df50SFrank Blaschka } 14924a71df50SFrank Blaschka 14938d908eb0SJulian Wiedmann static int qeth_halt_channel(struct qeth_card *card, 14948d908eb0SJulian Wiedmann struct qeth_channel *channel) 14954a71df50SFrank Blaschka { 14964a71df50SFrank Blaschka int rc; 14974a71df50SFrank Blaschka 1498847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "haltch"); 1499ed47155bSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(channel->ccwdev)); 15004a71df50SFrank Blaschka rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM); 1501ed47155bSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(channel->ccwdev)); 15024a71df50SFrank Blaschka 15034a71df50SFrank Blaschka if (rc) 15044a71df50SFrank Blaschka return rc; 15054a71df50SFrank Blaschka rc = wait_event_interruptible_timeout(card->wait_q, 15064a71df50SFrank Blaschka channel->state == CH_STATE_HALTED, QETH_TIMEOUT); 15074a71df50SFrank Blaschka if (rc == -ERESTARTSYS) 15084a71df50SFrank Blaschka return rc; 15094a71df50SFrank Blaschka if (channel->state != CH_STATE_HALTED) 15104a71df50SFrank Blaschka return -ETIME; 15114a71df50SFrank Blaschka return 0; 15124a71df50SFrank Blaschka } 15134a71df50SFrank Blaschka 15144a71df50SFrank Blaschka static int qeth_halt_channels(struct qeth_card *card) 15154a71df50SFrank Blaschka { 15164a71df50SFrank Blaschka int rc1 = 0, rc2 = 0, rc3 = 0; 15174a71df50SFrank Blaschka 1518847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "haltchs"); 15198d908eb0SJulian Wiedmann rc1 = qeth_halt_channel(card, &card->read); 15208d908eb0SJulian Wiedmann rc2 = qeth_halt_channel(card, &card->write); 15218d908eb0SJulian Wiedmann rc3 = qeth_halt_channel(card, &card->data); 15224a71df50SFrank Blaschka if (rc1) 15234a71df50SFrank Blaschka return rc1; 15244a71df50SFrank Blaschka if (rc2) 15254a71df50SFrank Blaschka return rc2; 15264a71df50SFrank Blaschka return rc3; 15274a71df50SFrank Blaschka } 15284a71df50SFrank Blaschka 15294a71df50SFrank Blaschka static int qeth_clear_channels(struct qeth_card *card) 15304a71df50SFrank Blaschka { 15314a71df50SFrank Blaschka int rc1 = 0, rc2 = 0, rc3 = 0; 15324a71df50SFrank Blaschka 1533847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "clearchs"); 15348d908eb0SJulian Wiedmann rc1 = qeth_clear_channel(card, &card->read); 15358d908eb0SJulian Wiedmann rc2 = qeth_clear_channel(card, &card->write); 15368d908eb0SJulian Wiedmann rc3 = qeth_clear_channel(card, &card->data); 15374a71df50SFrank Blaschka if (rc1) 15384a71df50SFrank Blaschka return rc1; 15394a71df50SFrank Blaschka if (rc2) 15404a71df50SFrank Blaschka return rc2; 15414a71df50SFrank Blaschka return rc3; 15424a71df50SFrank Blaschka } 15434a71df50SFrank Blaschka 15444a71df50SFrank Blaschka static int qeth_clear_halt_card(struct qeth_card *card, int halt) 15454a71df50SFrank Blaschka { 15464a71df50SFrank Blaschka int rc = 0; 15474a71df50SFrank Blaschka 1548847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "clhacrd"); 15494a71df50SFrank Blaschka 15504a71df50SFrank Blaschka if (halt) 15514a71df50SFrank Blaschka rc = qeth_halt_channels(card); 15524a71df50SFrank Blaschka if (rc) 15534a71df50SFrank Blaschka return rc; 15544a71df50SFrank Blaschka return qeth_clear_channels(card); 15554a71df50SFrank Blaschka } 15564a71df50SFrank Blaschka 15574a71df50SFrank Blaschka int qeth_qdio_clear_card(struct qeth_card *card, int use_halt) 15584a71df50SFrank Blaschka { 15594a71df50SFrank Blaschka int rc = 0; 15604a71df50SFrank Blaschka 1561847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "qdioclr"); 15624a71df50SFrank Blaschka switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED, 15634a71df50SFrank Blaschka QETH_QDIO_CLEANING)) { 15644a71df50SFrank Blaschka case QETH_QDIO_ESTABLISHED: 15654a71df50SFrank Blaschka if (card->info.type == QETH_CARD_TYPE_IQD) 1566cc961d40SJan Glauber rc = qdio_shutdown(CARD_DDEV(card), 15674a71df50SFrank Blaschka QDIO_FLAG_CLEANUP_USING_HALT); 15684a71df50SFrank Blaschka else 1569cc961d40SJan Glauber rc = qdio_shutdown(CARD_DDEV(card), 15704a71df50SFrank Blaschka QDIO_FLAG_CLEANUP_USING_CLEAR); 15714a71df50SFrank Blaschka if (rc) 1572847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 3, "1err%d", rc); 15734a71df50SFrank Blaschka atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); 15744a71df50SFrank Blaschka break; 15754a71df50SFrank Blaschka case QETH_QDIO_CLEANING: 15764a71df50SFrank Blaschka return rc; 15774a71df50SFrank Blaschka default: 15784a71df50SFrank Blaschka break; 15794a71df50SFrank Blaschka } 15804a71df50SFrank Blaschka rc = qeth_clear_halt_card(card, use_halt); 15814a71df50SFrank Blaschka if (rc) 1582847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 3, "2err%d", rc); 15834a71df50SFrank Blaschka card->state = CARD_STATE_DOWN; 15844a71df50SFrank Blaschka return rc; 15854a71df50SFrank Blaschka } 15864a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_qdio_clear_card); 15874a71df50SFrank Blaschka 15884a71df50SFrank Blaschka static int qeth_read_conf_data(struct qeth_card *card, void **buffer, 15894a71df50SFrank Blaschka int *length) 15904a71df50SFrank Blaschka { 15914a71df50SFrank Blaschka struct ciw *ciw; 15924a71df50SFrank Blaschka char *rcd_buf; 15934a71df50SFrank Blaschka int ret; 15944a71df50SFrank Blaschka struct qeth_channel *channel = &card->data; 15954a71df50SFrank Blaschka 15964a71df50SFrank Blaschka /* 15974a71df50SFrank Blaschka * scan for RCD command in extended SenseID data 15984a71df50SFrank Blaschka */ 15994a71df50SFrank Blaschka ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD); 16004a71df50SFrank Blaschka if (!ciw || ciw->cmd == 0) 16014a71df50SFrank Blaschka return -EOPNOTSUPP; 16024a71df50SFrank Blaschka rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA); 16034a71df50SFrank Blaschka if (!rcd_buf) 16044a71df50SFrank Blaschka return -ENOMEM; 16054a71df50SFrank Blaschka 1606f15cdaf2SJulian Wiedmann qeth_setup_ccw(channel->ccw, ciw->cmd, ciw->count, rcd_buf); 16074a71df50SFrank Blaschka channel->state = CH_STATE_RCD; 1608ed47155bSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(channel->ccwdev)); 1609f15cdaf2SJulian Wiedmann ret = ccw_device_start_timeout(channel->ccwdev, channel->ccw, 16104a71df50SFrank Blaschka QETH_RCD_PARM, LPM_ANYPATH, 0, 16114a71df50SFrank Blaschka QETH_RCD_TIMEOUT); 1612ed47155bSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(channel->ccwdev)); 16134a71df50SFrank Blaschka if (!ret) 16144a71df50SFrank Blaschka wait_event(card->wait_q, 16154a71df50SFrank Blaschka (channel->state == CH_STATE_RCD_DONE || 16164a71df50SFrank Blaschka channel->state == CH_STATE_DOWN)); 16174a71df50SFrank Blaschka if (channel->state == CH_STATE_DOWN) 16184a71df50SFrank Blaschka ret = -EIO; 16194a71df50SFrank Blaschka else 16204a71df50SFrank Blaschka channel->state = CH_STATE_DOWN; 16214a71df50SFrank Blaschka if (ret) { 16224a71df50SFrank Blaschka kfree(rcd_buf); 16234a71df50SFrank Blaschka *buffer = NULL; 16244a71df50SFrank Blaschka *length = 0; 16254a71df50SFrank Blaschka } else { 16264a71df50SFrank Blaschka *length = ciw->count; 16274a71df50SFrank Blaschka *buffer = rcd_buf; 16284a71df50SFrank Blaschka } 16294a71df50SFrank Blaschka return ret; 16304a71df50SFrank Blaschka } 16314a71df50SFrank Blaschka 1632a60389abSEinar Lueck static void qeth_configure_unitaddr(struct qeth_card *card, char *prcd) 16334a71df50SFrank Blaschka { 1634a60389abSEinar Lueck QETH_DBF_TEXT(SETUP, 2, "cfgunit"); 16354a71df50SFrank Blaschka card->info.chpid = prcd[30]; 16364a71df50SFrank Blaschka card->info.unit_addr2 = prcd[31]; 16374a71df50SFrank Blaschka card->info.cula = prcd[63]; 16384a71df50SFrank Blaschka card->info.guestlan = ((prcd[0x10] == _ascebc['V']) && 16394a71df50SFrank Blaschka (prcd[0x11] == _ascebc['M'])); 1640a60389abSEinar Lueck } 1641a60389abSEinar Lueck 1642615dff22SJulian Wiedmann static enum qeth_discipline_id qeth_vm_detect_layer(struct qeth_card *card) 1643615dff22SJulian Wiedmann { 1644615dff22SJulian Wiedmann enum qeth_discipline_id disc = QETH_DISCIPLINE_UNDETERMINED; 1645615dff22SJulian Wiedmann struct diag26c_vnic_resp *response = NULL; 1646615dff22SJulian Wiedmann struct diag26c_vnic_req *request = NULL; 1647615dff22SJulian Wiedmann struct ccw_dev_id id; 1648615dff22SJulian Wiedmann char userid[80]; 1649615dff22SJulian Wiedmann int rc = 0; 1650615dff22SJulian Wiedmann 1651615dff22SJulian Wiedmann QETH_DBF_TEXT(SETUP, 2, "vmlayer"); 1652615dff22SJulian Wiedmann 1653615dff22SJulian Wiedmann cpcmd("QUERY USERID", userid, sizeof(userid), &rc); 1654615dff22SJulian Wiedmann if (rc) 1655615dff22SJulian Wiedmann goto out; 1656615dff22SJulian Wiedmann 1657615dff22SJulian Wiedmann request = kzalloc(sizeof(*request), GFP_KERNEL | GFP_DMA); 1658615dff22SJulian Wiedmann response = kzalloc(sizeof(*response), GFP_KERNEL | GFP_DMA); 1659615dff22SJulian Wiedmann if (!request || !response) { 1660615dff22SJulian Wiedmann rc = -ENOMEM; 1661615dff22SJulian Wiedmann goto out; 1662615dff22SJulian Wiedmann } 1663615dff22SJulian Wiedmann 1664615dff22SJulian Wiedmann ccw_device_get_id(CARD_RDEV(card), &id); 1665615dff22SJulian Wiedmann request->resp_buf_len = sizeof(*response); 1666615dff22SJulian Wiedmann request->resp_version = DIAG26C_VERSION6_VM65918; 1667615dff22SJulian Wiedmann request->req_format = DIAG26C_VNIC_INFO; 1668615dff22SJulian Wiedmann ASCEBC(userid, 8); 1669615dff22SJulian Wiedmann memcpy(&request->sys_name, userid, 8); 1670615dff22SJulian Wiedmann request->devno = id.devno; 1671615dff22SJulian Wiedmann 1672615dff22SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, request, sizeof(*request)); 1673615dff22SJulian Wiedmann rc = diag26c(request, response, DIAG26C_PORT_VNIC); 1674615dff22SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, request, sizeof(*request)); 1675615dff22SJulian Wiedmann if (rc) 1676615dff22SJulian Wiedmann goto out; 1677615dff22SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, response, sizeof(*response)); 1678615dff22SJulian Wiedmann 1679615dff22SJulian Wiedmann if (request->resp_buf_len < sizeof(*response) || 1680615dff22SJulian Wiedmann response->version != request->resp_version) { 1681615dff22SJulian Wiedmann rc = -EIO; 1682615dff22SJulian Wiedmann goto out; 1683615dff22SJulian Wiedmann } 1684615dff22SJulian Wiedmann 1685615dff22SJulian Wiedmann if (response->protocol == VNIC_INFO_PROT_L2) 1686615dff22SJulian Wiedmann disc = QETH_DISCIPLINE_LAYER2; 1687615dff22SJulian Wiedmann else if (response->protocol == VNIC_INFO_PROT_L3) 1688615dff22SJulian Wiedmann disc = QETH_DISCIPLINE_LAYER3; 1689615dff22SJulian Wiedmann 1690615dff22SJulian Wiedmann out: 1691615dff22SJulian Wiedmann kfree(response); 1692615dff22SJulian Wiedmann kfree(request); 1693615dff22SJulian Wiedmann if (rc) 1694615dff22SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "err%x", rc); 1695615dff22SJulian Wiedmann return disc; 1696615dff22SJulian Wiedmann } 1697615dff22SJulian Wiedmann 1698c70eb09dSJulian Wiedmann /* Determine whether the device requires a specific layer discipline */ 1699c70eb09dSJulian Wiedmann static enum qeth_discipline_id qeth_enforce_discipline(struct qeth_card *card) 1700c70eb09dSJulian Wiedmann { 1701615dff22SJulian Wiedmann enum qeth_discipline_id disc = QETH_DISCIPLINE_UNDETERMINED; 1702615dff22SJulian Wiedmann 1703c70eb09dSJulian Wiedmann if (card->info.type == QETH_CARD_TYPE_OSM || 1704615dff22SJulian Wiedmann card->info.type == QETH_CARD_TYPE_OSN) 1705615dff22SJulian Wiedmann disc = QETH_DISCIPLINE_LAYER2; 1706615dff22SJulian Wiedmann else if (card->info.guestlan) 1707615dff22SJulian Wiedmann disc = (card->info.type == QETH_CARD_TYPE_IQD) ? 1708615dff22SJulian Wiedmann QETH_DISCIPLINE_LAYER3 : 1709615dff22SJulian Wiedmann qeth_vm_detect_layer(card); 1710615dff22SJulian Wiedmann 1711615dff22SJulian Wiedmann switch (disc) { 1712615dff22SJulian Wiedmann case QETH_DISCIPLINE_LAYER2: 1713c70eb09dSJulian Wiedmann QETH_DBF_TEXT(SETUP, 3, "force l2"); 1714615dff22SJulian Wiedmann break; 1715615dff22SJulian Wiedmann case QETH_DISCIPLINE_LAYER3: 1716c70eb09dSJulian Wiedmann QETH_DBF_TEXT(SETUP, 3, "force l3"); 1717615dff22SJulian Wiedmann break; 1718615dff22SJulian Wiedmann default: 1719615dff22SJulian Wiedmann QETH_DBF_TEXT(SETUP, 3, "force no"); 1720c70eb09dSJulian Wiedmann } 1721c70eb09dSJulian Wiedmann 1722615dff22SJulian Wiedmann return disc; 1723c70eb09dSJulian Wiedmann } 1724c70eb09dSJulian Wiedmann 1725a60389abSEinar Lueck static void qeth_configure_blkt_default(struct qeth_card *card, char *prcd) 1726a60389abSEinar Lueck { 1727a60389abSEinar Lueck QETH_DBF_TEXT(SETUP, 2, "cfgblkt"); 1728a60389abSEinar Lueck 1729e6e056baSStefan Raspl if (prcd[74] == 0xF0 && prcd[75] == 0xF0 && 1730a0c98523SUrsula Braun prcd[76] >= 0xF1 && prcd[76] <= 0xF4) { 1731a60389abSEinar Lueck card->info.blkt.time_total = 0; 1732a60389abSEinar Lueck card->info.blkt.inter_packet = 0; 1733a60389abSEinar Lueck card->info.blkt.inter_packet_jumbo = 0; 1734a0c98523SUrsula Braun } else { 1735a0c98523SUrsula Braun card->info.blkt.time_total = 250; 1736a0c98523SUrsula Braun card->info.blkt.inter_packet = 5; 1737a0c98523SUrsula Braun card->info.blkt.inter_packet_jumbo = 15; 1738a60389abSEinar Lueck } 17394a71df50SFrank Blaschka } 17404a71df50SFrank Blaschka 17414a71df50SFrank Blaschka static void qeth_init_tokens(struct qeth_card *card) 17424a71df50SFrank Blaschka { 17434a71df50SFrank Blaschka card->token.issuer_rm_w = 0x00010103UL; 17444a71df50SFrank Blaschka card->token.cm_filter_w = 0x00010108UL; 17454a71df50SFrank Blaschka card->token.cm_connection_w = 0x0001010aUL; 17464a71df50SFrank Blaschka card->token.ulp_filter_w = 0x0001010bUL; 17474a71df50SFrank Blaschka card->token.ulp_connection_w = 0x0001010dUL; 17484a71df50SFrank Blaschka } 17494a71df50SFrank Blaschka 17504a71df50SFrank Blaschka static void qeth_init_func_level(struct qeth_card *card) 17514a71df50SFrank Blaschka { 17525113fec0SUrsula Braun switch (card->info.type) { 17535113fec0SUrsula Braun case QETH_CARD_TYPE_IQD: 17546298263aSKlaus-Dieter Wacker card->info.func_level = QETH_IDX_FUNC_LEVEL_IQD; 17555113fec0SUrsula Braun break; 17565113fec0SUrsula Braun case QETH_CARD_TYPE_OSD: 17570132951eSUrsula Braun case QETH_CARD_TYPE_OSN: 17585113fec0SUrsula Braun card->info.func_level = QETH_IDX_FUNC_LEVEL_OSD; 17595113fec0SUrsula Braun break; 17605113fec0SUrsula Braun default: 17615113fec0SUrsula Braun break; 17624a71df50SFrank Blaschka } 17634a71df50SFrank Blaschka } 17644a71df50SFrank Blaschka 17658d908eb0SJulian Wiedmann static int qeth_idx_activate_get_answer(struct qeth_card *card, 17668d908eb0SJulian Wiedmann struct qeth_channel *channel, 17678f6637b8SJulian Wiedmann void (*reply_cb)(struct qeth_card *, 17688f6637b8SJulian Wiedmann struct qeth_channel *, 17694a71df50SFrank Blaschka struct qeth_cmd_buffer *)) 17704a71df50SFrank Blaschka { 17714a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 17724a71df50SFrank Blaschka int rc; 17734a71df50SFrank Blaschka 1774d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "idxanswr"); 17754a71df50SFrank Blaschka iob = qeth_get_buffer(channel); 17761aec42bcSThomas Richter if (!iob) 17771aec42bcSThomas Richter return -ENOMEM; 17788f6637b8SJulian Wiedmann iob->callback = reply_cb; 1779f15cdaf2SJulian Wiedmann qeth_setup_ccw(channel->ccw, CCW_CMD_READ, QETH_BUFSIZE, iob->data); 17804a71df50SFrank Blaschka 17814a71df50SFrank Blaschka wait_event(card->wait_q, 17824a71df50SFrank Blaschka atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); 1783d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 6, "noirqpnd"); 1784ed47155bSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(channel->ccwdev)); 1785f15cdaf2SJulian Wiedmann rc = ccw_device_start_timeout(channel->ccwdev, channel->ccw, 1786db71bbbdSJulian Wiedmann (addr_t) iob, 0, 0, QETH_TIMEOUT); 1787ed47155bSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(channel->ccwdev)); 17884a71df50SFrank Blaschka 17894a71df50SFrank Blaschka if (rc) { 179014cc21b6SFrank Blaschka QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc); 1791d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); 17924a71df50SFrank Blaschka atomic_set(&channel->irq_pending, 0); 17935065b2ddSJulian Wiedmann qeth_release_buffer(channel, iob); 17944a71df50SFrank Blaschka wake_up(&card->wait_q); 17954a71df50SFrank Blaschka return rc; 17964a71df50SFrank Blaschka } 17974a71df50SFrank Blaschka rc = wait_event_interruptible_timeout(card->wait_q, 17984a71df50SFrank Blaschka channel->state == CH_STATE_UP, QETH_TIMEOUT); 17994a71df50SFrank Blaschka if (rc == -ERESTARTSYS) 18004a71df50SFrank Blaschka return rc; 18014a71df50SFrank Blaschka if (channel->state != CH_STATE_UP) { 18024a71df50SFrank Blaschka rc = -ETIME; 1803d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); 18044a71df50SFrank Blaschka } else 18054a71df50SFrank Blaschka rc = 0; 18064a71df50SFrank Blaschka return rc; 18074a71df50SFrank Blaschka } 18084a71df50SFrank Blaschka 18098d908eb0SJulian Wiedmann static int qeth_idx_activate_channel(struct qeth_card *card, 18108d908eb0SJulian Wiedmann struct qeth_channel *channel, 18118f6637b8SJulian Wiedmann void (*reply_cb)(struct qeth_card *, 18128f6637b8SJulian Wiedmann struct qeth_channel *, 18134a71df50SFrank Blaschka struct qeth_cmd_buffer *)) 18144a71df50SFrank Blaschka { 18154a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 18164a71df50SFrank Blaschka __u16 temp; 18174a71df50SFrank Blaschka __u8 tmp; 18184a71df50SFrank Blaschka int rc; 1819f06f6f32SCornelia Huck struct ccw_dev_id temp_devid; 18204a71df50SFrank Blaschka 1821d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "idxactch"); 18224a71df50SFrank Blaschka 18234a71df50SFrank Blaschka iob = qeth_get_buffer(channel); 18241aec42bcSThomas Richter if (!iob) 18251aec42bcSThomas Richter return -ENOMEM; 18268f6637b8SJulian Wiedmann iob->callback = reply_cb; 1827f15cdaf2SJulian Wiedmann qeth_setup_ccw(channel->ccw, CCW_CMD_WRITE, IDX_ACTIVATE_SIZE, 182845ca2fd6SJulian Wiedmann iob->data); 18294a71df50SFrank Blaschka if (channel == &card->write) { 18304a71df50SFrank Blaschka memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE); 18314a71df50SFrank Blaschka memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), 18324a71df50SFrank Blaschka &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); 18334a71df50SFrank Blaschka card->seqno.trans_hdr++; 18344a71df50SFrank Blaschka } else { 18354a71df50SFrank Blaschka memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE); 18364a71df50SFrank Blaschka memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), 18374a71df50SFrank Blaschka &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); 18384a71df50SFrank Blaschka } 183992d27209SJulian Wiedmann tmp = ((u8)card->dev->dev_port) | 0x80; 18404a71df50SFrank Blaschka memcpy(QETH_IDX_ACT_PNO(iob->data), &tmp, 1); 18414a71df50SFrank Blaschka memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data), 18424a71df50SFrank Blaschka &card->token.issuer_rm_w, QETH_MPC_TOKEN_LENGTH); 18434a71df50SFrank Blaschka memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data), 18444a71df50SFrank Blaschka &card->info.func_level, sizeof(__u16)); 1845f06f6f32SCornelia Huck ccw_device_get_id(CARD_DDEV(card), &temp_devid); 1846f06f6f32SCornelia Huck memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp_devid.devno, 2); 18474a71df50SFrank Blaschka temp = (card->info.cula << 8) + card->info.unit_addr2; 18484a71df50SFrank Blaschka memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2); 18494a71df50SFrank Blaschka 18504a71df50SFrank Blaschka wait_event(card->wait_q, 18514a71df50SFrank Blaschka atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); 1852d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 6, "noirqpnd"); 1853ed47155bSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(channel->ccwdev)); 1854f15cdaf2SJulian Wiedmann rc = ccw_device_start_timeout(channel->ccwdev, channel->ccw, 1855db71bbbdSJulian Wiedmann (addr_t) iob, 0, 0, QETH_TIMEOUT); 1856ed47155bSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(channel->ccwdev)); 18574a71df50SFrank Blaschka 18584a71df50SFrank Blaschka if (rc) { 185914cc21b6SFrank Blaschka QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n", 186014cc21b6SFrank Blaschka rc); 1861d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 18624a71df50SFrank Blaschka atomic_set(&channel->irq_pending, 0); 18635065b2ddSJulian Wiedmann qeth_release_buffer(channel, iob); 18644a71df50SFrank Blaschka wake_up(&card->wait_q); 18654a71df50SFrank Blaschka return rc; 18664a71df50SFrank Blaschka } 18674a71df50SFrank Blaschka rc = wait_event_interruptible_timeout(card->wait_q, 18684a71df50SFrank Blaschka channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT); 18694a71df50SFrank Blaschka if (rc == -ERESTARTSYS) 18704a71df50SFrank Blaschka return rc; 18714a71df50SFrank Blaschka if (channel->state != CH_STATE_ACTIVATING) { 187274eacdb9SFrank Blaschka dev_warn(&channel->ccwdev->dev, "The qeth device driver" 187374eacdb9SFrank Blaschka " failed to recover an error on the device\n"); 1874e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "IDX activate timed out on channel %x\n", 1875e19e5be8SJulian Wiedmann CCW_DEVID(channel->ccwdev)); 1876d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME); 18774a71df50SFrank Blaschka return -ETIME; 18784a71df50SFrank Blaschka } 18798d908eb0SJulian Wiedmann return qeth_idx_activate_get_answer(card, channel, reply_cb); 18804a71df50SFrank Blaschka } 18814a71df50SFrank Blaschka 18824a71df50SFrank Blaschka static int qeth_peer_func_level(int level) 18834a71df50SFrank Blaschka { 18844a71df50SFrank Blaschka if ((level & 0xff) == 8) 18854a71df50SFrank Blaschka return (level & 0xff) + 0x400; 18864a71df50SFrank Blaschka if (((level >> 8) & 3) == 1) 18874a71df50SFrank Blaschka return (level & 0xff) + 0x200; 18884a71df50SFrank Blaschka return level; 18894a71df50SFrank Blaschka } 18904a71df50SFrank Blaschka 18918f6637b8SJulian Wiedmann static void qeth_idx_write_cb(struct qeth_card *card, 18928f6637b8SJulian Wiedmann struct qeth_channel *channel, 18934a71df50SFrank Blaschka struct qeth_cmd_buffer *iob) 18944a71df50SFrank Blaschka { 18954a71df50SFrank Blaschka __u16 temp; 18964a71df50SFrank Blaschka 1897d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP , 2, "idxwrcb"); 18984a71df50SFrank Blaschka 18994a71df50SFrank Blaschka if (channel->state == CH_STATE_DOWN) { 19004a71df50SFrank Blaschka channel->state = CH_STATE_ACTIVATING; 19014a71df50SFrank Blaschka goto out; 19024a71df50SFrank Blaschka } 19034a71df50SFrank Blaschka 19044a71df50SFrank Blaschka if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { 19055113fec0SUrsula Braun if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == QETH_IDX_ACT_ERR_EXCL) 1906750b1625SJulian Wiedmann dev_err(&channel->ccwdev->dev, 190774eacdb9SFrank Blaschka "The adapter is used exclusively by another " 190874eacdb9SFrank Blaschka "host\n"); 19094a71df50SFrank Blaschka else 1910e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "IDX_ACTIVATE on channel %x: negative reply\n", 1911e19e5be8SJulian Wiedmann CCW_DEVID(channel->ccwdev)); 19124a71df50SFrank Blaschka goto out; 19134a71df50SFrank Blaschka } 19144a71df50SFrank Blaschka memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); 19154a71df50SFrank Blaschka if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) { 1916e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "IDX_ACTIVATE on channel %x: function level mismatch (sent: %#x, received: %#x)\n", 1917e19e5be8SJulian Wiedmann CCW_DEVID(channel->ccwdev), 191874eacdb9SFrank Blaschka card->info.func_level, temp); 19194a71df50SFrank Blaschka goto out; 19204a71df50SFrank Blaschka } 19214a71df50SFrank Blaschka channel->state = CH_STATE_UP; 19224a71df50SFrank Blaschka out: 19234a71df50SFrank Blaschka qeth_release_buffer(channel, iob); 19244a71df50SFrank Blaschka } 19254a71df50SFrank Blaschka 19268f6637b8SJulian Wiedmann static void qeth_idx_read_cb(struct qeth_card *card, 19278f6637b8SJulian Wiedmann struct qeth_channel *channel, 19284a71df50SFrank Blaschka struct qeth_cmd_buffer *iob) 19294a71df50SFrank Blaschka { 19304a71df50SFrank Blaschka __u16 temp; 19314a71df50SFrank Blaschka 1932d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP , 2, "idxrdcb"); 19334a71df50SFrank Blaschka if (channel->state == CH_STATE_DOWN) { 19344a71df50SFrank Blaschka channel->state = CH_STATE_ACTIVATING; 19354a71df50SFrank Blaschka goto out; 19364a71df50SFrank Blaschka } 19374a71df50SFrank Blaschka 19385113fec0SUrsula Braun if (qeth_check_idx_response(card, iob->data)) 19394a71df50SFrank Blaschka goto out; 19404a71df50SFrank Blaschka 19414a71df50SFrank Blaschka if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { 19425113fec0SUrsula Braun switch (QETH_IDX_ACT_CAUSE_CODE(iob->data)) { 19435113fec0SUrsula Braun case QETH_IDX_ACT_ERR_EXCL: 1944750b1625SJulian Wiedmann dev_err(&channel->ccwdev->dev, 194574eacdb9SFrank Blaschka "The adapter is used exclusively by another " 194674eacdb9SFrank Blaschka "host\n"); 19475113fec0SUrsula Braun break; 19485113fec0SUrsula Braun case QETH_IDX_ACT_ERR_AUTH: 194901fc3e86SUrsula Braun case QETH_IDX_ACT_ERR_AUTH_USER: 1950750b1625SJulian Wiedmann dev_err(&channel->ccwdev->dev, 19515113fec0SUrsula Braun "Setting the device online failed because of " 195201fc3e86SUrsula Braun "insufficient authorization\n"); 19535113fec0SUrsula Braun break; 19545113fec0SUrsula Braun default: 1955e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "IDX_ACTIVATE on channel %x: negative reply\n", 1956e19e5be8SJulian Wiedmann CCW_DEVID(channel->ccwdev)); 19575113fec0SUrsula Braun } 195801fc3e86SUrsula Braun QETH_CARD_TEXT_(card, 2, "idxread%c", 195901fc3e86SUrsula Braun QETH_IDX_ACT_CAUSE_CODE(iob->data)); 19604a71df50SFrank Blaschka goto out; 19614a71df50SFrank Blaschka } 19624a71df50SFrank Blaschka 19634a71df50SFrank Blaschka memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); 19644a71df50SFrank Blaschka if (temp != qeth_peer_func_level(card->info.func_level)) { 1965e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "IDX_ACTIVATE on channel %x: function level mismatch (sent: %#x, received: %#x)\n", 1966e19e5be8SJulian Wiedmann CCW_DEVID(channel->ccwdev), 196774eacdb9SFrank Blaschka card->info.func_level, temp); 19684a71df50SFrank Blaschka goto out; 19694a71df50SFrank Blaschka } 19704a71df50SFrank Blaschka memcpy(&card->token.issuer_rm_r, 19714a71df50SFrank Blaschka QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data), 19724a71df50SFrank Blaschka QETH_MPC_TOKEN_LENGTH); 19734a71df50SFrank Blaschka memcpy(&card->info.mcl_level[0], 19744a71df50SFrank Blaschka QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH); 19754a71df50SFrank Blaschka channel->state = CH_STATE_UP; 19764a71df50SFrank Blaschka out: 19774a71df50SFrank Blaschka qeth_release_buffer(channel, iob); 19784a71df50SFrank Blaschka } 19794a71df50SFrank Blaschka 19804a71df50SFrank Blaschka void qeth_prepare_control_data(struct qeth_card *card, int len, 19814a71df50SFrank Blaschka struct qeth_cmd_buffer *iob) 19824a71df50SFrank Blaschka { 1983f15cdaf2SJulian Wiedmann qeth_setup_ccw(iob->channel->ccw, CCW_CMD_WRITE, len, iob->data); 19848f6637b8SJulian Wiedmann iob->callback = qeth_release_buffer_cb; 19854a71df50SFrank Blaschka 19864a71df50SFrank Blaschka memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), 19874a71df50SFrank Blaschka &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); 19884a71df50SFrank Blaschka card->seqno.trans_hdr++; 19894a71df50SFrank Blaschka memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data), 19904a71df50SFrank Blaschka &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH); 19914a71df50SFrank Blaschka card->seqno.pdu_hdr++; 19924a71df50SFrank Blaschka memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data), 19934a71df50SFrank Blaschka &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH); 1994d11ba0c4SPeter Tiedemann QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN); 19954a71df50SFrank Blaschka } 19964a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_prepare_control_data); 19974a71df50SFrank Blaschka 1998efbbc1d5SEugene Crosser /** 1999efbbc1d5SEugene Crosser * qeth_send_control_data() - send control command to the card 2000efbbc1d5SEugene Crosser * @card: qeth_card structure pointer 2001efbbc1d5SEugene Crosser * @len: size of the command buffer 2002efbbc1d5SEugene Crosser * @iob: qeth_cmd_buffer pointer 2003efbbc1d5SEugene Crosser * @reply_cb: callback function pointer 2004efbbc1d5SEugene Crosser * @cb_card: pointer to the qeth_card structure 2005efbbc1d5SEugene Crosser * @cb_reply: pointer to the qeth_reply structure 2006efbbc1d5SEugene Crosser * @cb_cmd: pointer to the original iob for non-IPA 2007efbbc1d5SEugene Crosser * commands, or to the qeth_ipa_cmd structure 2008efbbc1d5SEugene Crosser * for the IPA commands. 2009efbbc1d5SEugene Crosser * @reply_param: private pointer passed to the callback 2010efbbc1d5SEugene Crosser * 2011efbbc1d5SEugene Crosser * Returns the value of the `return_code' field of the response 2012efbbc1d5SEugene Crosser * block returned from the hardware, or other error indication. 2013efbbc1d5SEugene Crosser * Value of zero indicates successful execution of the command. 2014efbbc1d5SEugene Crosser * 2015efbbc1d5SEugene Crosser * Callback function gets called one or more times, with cb_cmd 2016efbbc1d5SEugene Crosser * pointing to the response returned by the hardware. Callback 2017efbbc1d5SEugene Crosser * function must return non-zero if more reply blocks are expected, 2018efbbc1d5SEugene Crosser * and zero if the last or only reply block is received. Callback 2019efbbc1d5SEugene Crosser * function can get the value of the reply_param pointer from the 2020efbbc1d5SEugene Crosser * field 'param' of the structure qeth_reply. 2021efbbc1d5SEugene Crosser */ 2022efbbc1d5SEugene Crosser 202384dbea46SJulian Wiedmann static int qeth_send_control_data(struct qeth_card *card, int len, 20244a71df50SFrank Blaschka struct qeth_cmd_buffer *iob, 2025efbbc1d5SEugene Crosser int (*reply_cb)(struct qeth_card *cb_card, 2026efbbc1d5SEugene Crosser struct qeth_reply *cb_reply, 2027efbbc1d5SEugene Crosser unsigned long cb_cmd), 20284a71df50SFrank Blaschka void *reply_param) 20294a71df50SFrank Blaschka { 2030750b1625SJulian Wiedmann struct qeth_channel *channel = iob->channel; 20314a71df50SFrank Blaschka int rc; 20324a71df50SFrank Blaschka struct qeth_reply *reply = NULL; 20337834cd5aSHeiko Carstens unsigned long timeout, event_timeout; 20341c5b2216SJulian Wiedmann struct qeth_ipa_cmd *cmd = NULL; 20354a71df50SFrank Blaschka 2036847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "sendctl"); 20374a71df50SFrank Blaschka 2038908abbb5SUrsula Braun if (card->read_or_write_problem) { 2039750b1625SJulian Wiedmann qeth_release_buffer(channel, iob); 2040908abbb5SUrsula Braun return -EIO; 2041908abbb5SUrsula Braun } 20424a71df50SFrank Blaschka reply = qeth_alloc_reply(card); 20434a71df50SFrank Blaschka if (!reply) { 20445065b2ddSJulian Wiedmann qeth_release_buffer(channel, iob); 20454a71df50SFrank Blaschka return -ENOMEM; 20464a71df50SFrank Blaschka } 20474a71df50SFrank Blaschka reply->callback = reply_cb; 20484a71df50SFrank Blaschka reply->param = reply_param; 2049d22ffb5aSJulian Wiedmann 20504a71df50SFrank Blaschka init_waitqueue_head(&reply->wait_q); 20514a71df50SFrank Blaschka 2052750b1625SJulian Wiedmann while (atomic_cmpxchg(&channel->irq_pending, 0, 1)) ; 20534a71df50SFrank Blaschka 20541c5b2216SJulian Wiedmann if (IS_IPA(iob->data)) { 20551c5b2216SJulian Wiedmann cmd = __ipa_cmd(iob); 2056d22ffb5aSJulian Wiedmann cmd->hdr.seqno = card->seqno.ipa++; 2057d22ffb5aSJulian Wiedmann reply->seqno = cmd->hdr.seqno; 20587834cd5aSHeiko Carstens event_timeout = QETH_IPA_TIMEOUT; 20591c5b2216SJulian Wiedmann } else { 2060d22ffb5aSJulian Wiedmann reply->seqno = QETH_IDX_COMMAND_SEQNO; 20617834cd5aSHeiko Carstens event_timeout = QETH_TIMEOUT; 20621c5b2216SJulian Wiedmann } 2063d22ffb5aSJulian Wiedmann qeth_prepare_control_data(card, len, iob); 2064d22ffb5aSJulian Wiedmann 2065ed47155bSJulian Wiedmann spin_lock_irq(&card->lock); 2066d22ffb5aSJulian Wiedmann list_add_tail(&reply->list, &card->cmd_waiter_list); 2067ed47155bSJulian Wiedmann spin_unlock_irq(&card->lock); 20681c5b2216SJulian Wiedmann 20697834cd5aSHeiko Carstens timeout = jiffies + event_timeout; 20704a71df50SFrank Blaschka 2071847a50fdSCarsten Otte QETH_CARD_TEXT(card, 6, "noirqpnd"); 2072ed47155bSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(channel->ccwdev)); 2073f15cdaf2SJulian Wiedmann rc = ccw_device_start_timeout(channel->ccwdev, channel->ccw, 2074db71bbbdSJulian Wiedmann (addr_t) iob, 0, 0, event_timeout); 2075ed47155bSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(channel->ccwdev)); 20764a71df50SFrank Blaschka if (rc) { 2077e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "qeth_send_control_data on device %x: ccw_device_start rc = %i\n", 2078e19e5be8SJulian Wiedmann CARD_DEVID(card), rc); 2079847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 2, " err%d", rc); 2080ed47155bSJulian Wiedmann spin_lock_irq(&card->lock); 20814a71df50SFrank Blaschka list_del_init(&reply->list); 20824a71df50SFrank Blaschka qeth_put_reply(reply); 2083ed47155bSJulian Wiedmann spin_unlock_irq(&card->lock); 2084750b1625SJulian Wiedmann qeth_release_buffer(channel, iob); 2085750b1625SJulian Wiedmann atomic_set(&channel->irq_pending, 0); 20864a71df50SFrank Blaschka wake_up(&card->wait_q); 20874a71df50SFrank Blaschka return rc; 20884a71df50SFrank Blaschka } 20895b54e16fSFrank Blaschka 20905b54e16fSFrank Blaschka /* we have only one long running ipassist, since we can ensure 20915b54e16fSFrank Blaschka process context of this command we can sleep */ 20921c5b2216SJulian Wiedmann if (cmd && cmd->hdr.command == IPA_CMD_SETIP && 20931c5b2216SJulian Wiedmann cmd->hdr.prot_version == QETH_PROT_IPV4) { 20945b54e16fSFrank Blaschka if (!wait_event_timeout(reply->wait_q, 20957834cd5aSHeiko Carstens atomic_read(&reply->received), event_timeout)) 20965b54e16fSFrank Blaschka goto time_err; 20975b54e16fSFrank Blaschka } else { 20984a71df50SFrank Blaschka while (!atomic_read(&reply->received)) { 20995b54e16fSFrank Blaschka if (time_after(jiffies, timeout)) 21005b54e16fSFrank Blaschka goto time_err; 21015b54e16fSFrank Blaschka cpu_relax(); 21026531084cSPeter Senna Tschudin } 21035b54e16fSFrank Blaschka } 21045b54e16fSFrank Blaschka 21055b54e16fSFrank Blaschka rc = reply->rc; 21065b54e16fSFrank Blaschka qeth_put_reply(reply); 21075b54e16fSFrank Blaschka return rc; 21085b54e16fSFrank Blaschka 21095b54e16fSFrank Blaschka time_err: 211070919e23SUrsula Braun reply->rc = -ETIME; 2111ed47155bSJulian Wiedmann spin_lock_irq(&card->lock); 21124a71df50SFrank Blaschka list_del_init(&reply->list); 2113ed47155bSJulian Wiedmann spin_unlock_irq(&card->lock); 21144a71df50SFrank Blaschka atomic_inc(&reply->received); 21154a71df50SFrank Blaschka rc = reply->rc; 21164a71df50SFrank Blaschka qeth_put_reply(reply); 21174a71df50SFrank Blaschka return rc; 21184a71df50SFrank Blaschka } 21194a71df50SFrank Blaschka 21204a71df50SFrank Blaschka static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply, 21214a71df50SFrank Blaschka unsigned long data) 21224a71df50SFrank Blaschka { 21234a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 21244a71df50SFrank Blaschka 2125d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "cmenblcb"); 21264a71df50SFrank Blaschka 21274a71df50SFrank Blaschka iob = (struct qeth_cmd_buffer *) data; 21284a71df50SFrank Blaschka memcpy(&card->token.cm_filter_r, 21294a71df50SFrank Blaschka QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data), 21304a71df50SFrank Blaschka QETH_MPC_TOKEN_LENGTH); 21314a71df50SFrank Blaschka return 0; 21324a71df50SFrank Blaschka } 21334a71df50SFrank Blaschka 21344a71df50SFrank Blaschka static int qeth_cm_enable(struct qeth_card *card) 21354a71df50SFrank Blaschka { 21364a71df50SFrank Blaschka int rc; 21374a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 21384a71df50SFrank Blaschka 2139d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "cmenable"); 21404a71df50SFrank Blaschka 21414a71df50SFrank Blaschka iob = qeth_wait_for_buffer(&card->write); 21424a71df50SFrank Blaschka memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE); 21434a71df50SFrank Blaschka memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data), 21444a71df50SFrank Blaschka &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH); 21454a71df50SFrank Blaschka memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data), 21464a71df50SFrank Blaschka &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH); 21474a71df50SFrank Blaschka 21484a71df50SFrank Blaschka rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob, 21494a71df50SFrank Blaschka qeth_cm_enable_cb, NULL); 21504a71df50SFrank Blaschka return rc; 21514a71df50SFrank Blaschka } 21524a71df50SFrank Blaschka 21534a71df50SFrank Blaschka static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply, 21544a71df50SFrank Blaschka unsigned long data) 21554a71df50SFrank Blaschka { 21564a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 21574a71df50SFrank Blaschka 2158d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "cmsetpcb"); 21594a71df50SFrank Blaschka 21604a71df50SFrank Blaschka iob = (struct qeth_cmd_buffer *) data; 21614a71df50SFrank Blaschka memcpy(&card->token.cm_connection_r, 21624a71df50SFrank Blaschka QETH_CM_SETUP_RESP_DEST_ADDR(iob->data), 21634a71df50SFrank Blaschka QETH_MPC_TOKEN_LENGTH); 21644a71df50SFrank Blaschka return 0; 21654a71df50SFrank Blaschka } 21664a71df50SFrank Blaschka 21674a71df50SFrank Blaschka static int qeth_cm_setup(struct qeth_card *card) 21684a71df50SFrank Blaschka { 21694a71df50SFrank Blaschka int rc; 21704a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 21714a71df50SFrank Blaschka 2172d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "cmsetup"); 21734a71df50SFrank Blaschka 21744a71df50SFrank Blaschka iob = qeth_wait_for_buffer(&card->write); 21754a71df50SFrank Blaschka memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE); 21764a71df50SFrank Blaschka memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data), 21774a71df50SFrank Blaschka &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH); 21784a71df50SFrank Blaschka memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data), 21794a71df50SFrank Blaschka &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH); 21804a71df50SFrank Blaschka memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data), 21814a71df50SFrank Blaschka &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH); 21824a71df50SFrank Blaschka rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob, 21834a71df50SFrank Blaschka qeth_cm_setup_cb, NULL); 21844a71df50SFrank Blaschka return rc; 21854a71df50SFrank Blaschka } 21864a71df50SFrank Blaschka 21878ce7a9e0SJulian Wiedmann static int qeth_update_max_mtu(struct qeth_card *card, unsigned int max_mtu) 21884a71df50SFrank Blaschka { 21898ce7a9e0SJulian Wiedmann struct net_device *dev = card->dev; 21908ce7a9e0SJulian Wiedmann unsigned int new_mtu; 21918ce7a9e0SJulian Wiedmann 21928ce7a9e0SJulian Wiedmann if (!max_mtu) { 21938ce7a9e0SJulian Wiedmann /* IQD needs accurate max MTU to set up its RX buffers: */ 21948ce7a9e0SJulian Wiedmann if (IS_IQD(card)) 21958ce7a9e0SJulian Wiedmann return -EINVAL; 21968ce7a9e0SJulian Wiedmann /* tolerate quirky HW: */ 21978ce7a9e0SJulian Wiedmann max_mtu = ETH_MAX_MTU; 21984a71df50SFrank Blaschka } 21998ce7a9e0SJulian Wiedmann 22008ce7a9e0SJulian Wiedmann rtnl_lock(); 22018ce7a9e0SJulian Wiedmann if (IS_IQD(card)) { 22028ce7a9e0SJulian Wiedmann /* move any device with default MTU to new max MTU: */ 22038ce7a9e0SJulian Wiedmann new_mtu = (dev->mtu == dev->max_mtu) ? max_mtu : dev->mtu; 22048ce7a9e0SJulian Wiedmann 22058ce7a9e0SJulian Wiedmann /* adjust RX buffer size to new max MTU: */ 22068ce7a9e0SJulian Wiedmann card->qdio.in_buf_size = max_mtu + 2 * PAGE_SIZE; 22078ce7a9e0SJulian Wiedmann if (dev->max_mtu && dev->max_mtu != max_mtu) 22088ce7a9e0SJulian Wiedmann qeth_free_qdio_buffers(card); 22098ce7a9e0SJulian Wiedmann } else { 22108ce7a9e0SJulian Wiedmann if (dev->mtu) 22118ce7a9e0SJulian Wiedmann new_mtu = dev->mtu; 22128ce7a9e0SJulian Wiedmann /* default MTUs for first setup: */ 22134fda3354SJulian Wiedmann else if (IS_LAYER2(card)) 22148ce7a9e0SJulian Wiedmann new_mtu = ETH_DATA_LEN; 22158ce7a9e0SJulian Wiedmann else 22168ce7a9e0SJulian Wiedmann new_mtu = ETH_DATA_LEN - 8; /* allow for LLC + SNAP */ 22178ce7a9e0SJulian Wiedmann } 22188ce7a9e0SJulian Wiedmann 22198ce7a9e0SJulian Wiedmann dev->max_mtu = max_mtu; 22208ce7a9e0SJulian Wiedmann dev->mtu = min(new_mtu, max_mtu); 22218ce7a9e0SJulian Wiedmann rtnl_unlock(); 22228ce7a9e0SJulian Wiedmann return 0; 22234a71df50SFrank Blaschka } 22244a71df50SFrank Blaschka 2225cef6ff22SJulian Wiedmann static int qeth_get_mtu_outof_framesize(int framesize) 22264a71df50SFrank Blaschka { 22274a71df50SFrank Blaschka switch (framesize) { 22284a71df50SFrank Blaschka case 0x4000: 22294a71df50SFrank Blaschka return 8192; 22304a71df50SFrank Blaschka case 0x6000: 22314a71df50SFrank Blaschka return 16384; 22324a71df50SFrank Blaschka case 0xa000: 22334a71df50SFrank Blaschka return 32768; 22344a71df50SFrank Blaschka case 0xffff: 22354a71df50SFrank Blaschka return 57344; 22364a71df50SFrank Blaschka default: 22374a71df50SFrank Blaschka return 0; 22384a71df50SFrank Blaschka } 22394a71df50SFrank Blaschka } 22404a71df50SFrank Blaschka 22414a71df50SFrank Blaschka static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply, 22424a71df50SFrank Blaschka unsigned long data) 22434a71df50SFrank Blaschka { 22444a71df50SFrank Blaschka __u16 mtu, framesize; 22454a71df50SFrank Blaschka __u16 len; 22464a71df50SFrank Blaschka __u8 link_type; 22474a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 22484a71df50SFrank Blaschka 2249d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "ulpenacb"); 22504a71df50SFrank Blaschka 22514a71df50SFrank Blaschka iob = (struct qeth_cmd_buffer *) data; 22524a71df50SFrank Blaschka memcpy(&card->token.ulp_filter_r, 22534a71df50SFrank Blaschka QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data), 22544a71df50SFrank Blaschka QETH_MPC_TOKEN_LENGTH); 22559853b97bSFrank Blaschka if (card->info.type == QETH_CARD_TYPE_IQD) { 22564a71df50SFrank Blaschka memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2); 22574a71df50SFrank Blaschka mtu = qeth_get_mtu_outof_framesize(framesize); 22584a71df50SFrank Blaschka } else { 22598ce7a9e0SJulian Wiedmann mtu = *(__u16 *)QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data); 22604a71df50SFrank Blaschka } 22618ce7a9e0SJulian Wiedmann *(u16 *)reply->param = mtu; 22624a71df50SFrank Blaschka 22634a71df50SFrank Blaschka memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2); 22644a71df50SFrank Blaschka if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) { 22654a71df50SFrank Blaschka memcpy(&link_type, 22664a71df50SFrank Blaschka QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1); 22674a71df50SFrank Blaschka card->info.link_type = link_type; 22684a71df50SFrank Blaschka } else 22694a71df50SFrank Blaschka card->info.link_type = 0; 227001fc3e86SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "link%d", card->info.link_type); 22714a71df50SFrank Blaschka return 0; 22724a71df50SFrank Blaschka } 22734a71df50SFrank Blaschka 227473657a3eSJulian Wiedmann static u8 qeth_mpc_select_prot_type(struct qeth_card *card) 227573657a3eSJulian Wiedmann { 227673657a3eSJulian Wiedmann if (IS_OSN(card)) 227773657a3eSJulian Wiedmann return QETH_PROT_OSN2; 22784fda3354SJulian Wiedmann return IS_LAYER2(card) ? QETH_PROT_LAYER2 : QETH_PROT_TCPIP; 227973657a3eSJulian Wiedmann } 228073657a3eSJulian Wiedmann 22814a71df50SFrank Blaschka static int qeth_ulp_enable(struct qeth_card *card) 22824a71df50SFrank Blaschka { 228373657a3eSJulian Wiedmann u8 prot_type = qeth_mpc_select_prot_type(card); 22844a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 22858ce7a9e0SJulian Wiedmann u16 max_mtu; 228673657a3eSJulian Wiedmann int rc; 22874a71df50SFrank Blaschka 22884a71df50SFrank Blaschka /*FIXME: trace view callbacks*/ 2289d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "ulpenabl"); 22904a71df50SFrank Blaschka 22914a71df50SFrank Blaschka iob = qeth_wait_for_buffer(&card->write); 22924a71df50SFrank Blaschka memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE); 22934a71df50SFrank Blaschka 229492d27209SJulian Wiedmann *(QETH_ULP_ENABLE_LINKNUM(iob->data)) = (u8) card->dev->dev_port; 22954a71df50SFrank Blaschka memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1); 22964a71df50SFrank Blaschka memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data), 22974a71df50SFrank Blaschka &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); 22984a71df50SFrank Blaschka memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data), 22994a71df50SFrank Blaschka &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH); 23004a71df50SFrank Blaschka rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob, 23018ce7a9e0SJulian Wiedmann qeth_ulp_enable_cb, &max_mtu); 23028ce7a9e0SJulian Wiedmann if (rc) 23034a71df50SFrank Blaschka return rc; 23048ce7a9e0SJulian Wiedmann return qeth_update_max_mtu(card, max_mtu); 23054a71df50SFrank Blaschka } 23064a71df50SFrank Blaschka 23074a71df50SFrank Blaschka static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply, 23084a71df50SFrank Blaschka unsigned long data) 23094a71df50SFrank Blaschka { 23104a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 23114a71df50SFrank Blaschka 2312d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "ulpstpcb"); 23134a71df50SFrank Blaschka 23144a71df50SFrank Blaschka iob = (struct qeth_cmd_buffer *) data; 23154a71df50SFrank Blaschka memcpy(&card->token.ulp_connection_r, 23164a71df50SFrank Blaschka QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), 23174a71df50SFrank Blaschka QETH_MPC_TOKEN_LENGTH); 231865a1f898SUrsula Braun if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), 231965a1f898SUrsula Braun 3)) { 232065a1f898SUrsula Braun QETH_DBF_TEXT(SETUP, 2, "olmlimit"); 232165a1f898SUrsula Braun dev_err(&card->gdev->dev, "A connection could not be " 232265a1f898SUrsula Braun "established because of an OLM limit\n"); 2323bbb822a8SUrsula Braun iob->rc = -EMLINK; 232465a1f898SUrsula Braun } 2325d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); 23267bf9bcffSStefan Raspl return 0; 23274a71df50SFrank Blaschka } 23284a71df50SFrank Blaschka 23294a71df50SFrank Blaschka static int qeth_ulp_setup(struct qeth_card *card) 23304a71df50SFrank Blaschka { 23314a71df50SFrank Blaschka int rc; 23324a71df50SFrank Blaschka __u16 temp; 23334a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 23344a71df50SFrank Blaschka struct ccw_dev_id dev_id; 23354a71df50SFrank Blaschka 2336d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "ulpsetup"); 23374a71df50SFrank Blaschka 23384a71df50SFrank Blaschka iob = qeth_wait_for_buffer(&card->write); 23394a71df50SFrank Blaschka memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE); 23404a71df50SFrank Blaschka 23414a71df50SFrank Blaschka memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data), 23424a71df50SFrank Blaschka &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); 23434a71df50SFrank Blaschka memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data), 23444a71df50SFrank Blaschka &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH); 23454a71df50SFrank Blaschka memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data), 23464a71df50SFrank Blaschka &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH); 23474a71df50SFrank Blaschka 23484a71df50SFrank Blaschka ccw_device_get_id(CARD_DDEV(card), &dev_id); 23494a71df50SFrank Blaschka memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2); 23504a71df50SFrank Blaschka temp = (card->info.cula << 8) + card->info.unit_addr2; 23514a71df50SFrank Blaschka memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2); 23524a71df50SFrank Blaschka rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob, 23534a71df50SFrank Blaschka qeth_ulp_setup_cb, NULL); 23544a71df50SFrank Blaschka return rc; 23554a71df50SFrank Blaschka } 23564a71df50SFrank Blaschka 23570da9581dSEinar Lueck static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *q, int bidx) 23580da9581dSEinar Lueck { 23590da9581dSEinar Lueck struct qeth_qdio_out_buffer *newbuf; 23600da9581dSEinar Lueck 23610da9581dSEinar Lueck newbuf = kmem_cache_zalloc(qeth_qdio_outbuf_cache, GFP_ATOMIC); 23623b346c18SJulian Wiedmann if (!newbuf) 23633b346c18SJulian Wiedmann return -ENOMEM; 23643b346c18SJulian Wiedmann 2365d445a4e2SSebastian Ott newbuf->buffer = q->qdio_bufs[bidx]; 23660da9581dSEinar Lueck skb_queue_head_init(&newbuf->skb_list); 23670da9581dSEinar Lueck lockdep_set_class(&newbuf->skb_list.lock, &qdio_out_skb_queue_key); 23680da9581dSEinar Lueck newbuf->q = q; 23690da9581dSEinar Lueck newbuf->next_pending = q->bufs[bidx]; 23700da9581dSEinar Lueck atomic_set(&newbuf->state, QETH_QDIO_BUF_EMPTY); 23710da9581dSEinar Lueck q->bufs[bidx] = newbuf; 23723b346c18SJulian Wiedmann return 0; 23730da9581dSEinar Lueck } 23740da9581dSEinar Lueck 2375afa0c590SJulian Wiedmann static void qeth_free_output_queue(struct qeth_qdio_out_q *q) 2376d445a4e2SSebastian Ott { 2377d445a4e2SSebastian Ott if (!q) 2378d445a4e2SSebastian Ott return; 2379d445a4e2SSebastian Ott 2380afa0c590SJulian Wiedmann qeth_clear_outq_buffers(q, 1); 2381d445a4e2SSebastian Ott qdio_free_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q); 2382d445a4e2SSebastian Ott kfree(q); 2383d445a4e2SSebastian Ott } 2384d445a4e2SSebastian Ott 2385d445a4e2SSebastian Ott static struct qeth_qdio_out_q *qeth_alloc_qdio_out_buf(void) 2386d445a4e2SSebastian Ott { 2387d445a4e2SSebastian Ott struct qeth_qdio_out_q *q = kzalloc(sizeof(*q), GFP_KERNEL); 2388d445a4e2SSebastian Ott 2389d445a4e2SSebastian Ott if (!q) 2390d445a4e2SSebastian Ott return NULL; 2391d445a4e2SSebastian Ott 2392d445a4e2SSebastian Ott if (qdio_alloc_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q)) { 2393d445a4e2SSebastian Ott kfree(q); 2394d445a4e2SSebastian Ott return NULL; 2395d445a4e2SSebastian Ott } 2396d445a4e2SSebastian Ott return q; 2397d445a4e2SSebastian Ott } 23980da9581dSEinar Lueck 23994a71df50SFrank Blaschka static int qeth_alloc_qdio_buffers(struct qeth_card *card) 24004a71df50SFrank Blaschka { 24014a71df50SFrank Blaschka int i, j; 24024a71df50SFrank Blaschka 2403d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "allcqdbf"); 24044a71df50SFrank Blaschka 24054a71df50SFrank Blaschka if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED, 24064a71df50SFrank Blaschka QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED) 24074a71df50SFrank Blaschka return 0; 24084a71df50SFrank Blaschka 24094601ba6cSSebastian Ott QETH_DBF_TEXT(SETUP, 2, "inq"); 24104601ba6cSSebastian Ott card->qdio.in_q = qeth_alloc_qdio_queue(); 24114a71df50SFrank Blaschka if (!card->qdio.in_q) 24124a71df50SFrank Blaschka goto out_nomem; 24134601ba6cSSebastian Ott 24144a71df50SFrank Blaschka /* inbound buffer pool */ 24154a71df50SFrank Blaschka if (qeth_alloc_buffer_pool(card)) 24164a71df50SFrank Blaschka goto out_freeinq; 24170da9581dSEinar Lueck 24184a71df50SFrank Blaschka /* outbound */ 24194a71df50SFrank Blaschka card->qdio.out_qs = 24206396bb22SKees Cook kcalloc(card->qdio.no_out_queues, 24216396bb22SKees Cook sizeof(struct qeth_qdio_out_q *), 24226396bb22SKees Cook GFP_KERNEL); 24234a71df50SFrank Blaschka if (!card->qdio.out_qs) 24244a71df50SFrank Blaschka goto out_freepool; 24254a71df50SFrank Blaschka for (i = 0; i < card->qdio.no_out_queues; ++i) { 2426d445a4e2SSebastian Ott card->qdio.out_qs[i] = qeth_alloc_qdio_out_buf(); 24274a71df50SFrank Blaschka if (!card->qdio.out_qs[i]) 24284a71df50SFrank Blaschka goto out_freeoutq; 2429d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "outq %i", i); 2430d11ba0c4SPeter Tiedemann QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *)); 24314a71df50SFrank Blaschka card->qdio.out_qs[i]->queue_no = i; 24324a71df50SFrank Blaschka /* give outbound qeth_qdio_buffers their qdio_buffers */ 24334a71df50SFrank Blaschka for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { 243418af5c17SStefan Raspl WARN_ON(card->qdio.out_qs[i]->bufs[j] != NULL); 24350da9581dSEinar Lueck if (qeth_init_qdio_out_buf(card->qdio.out_qs[i], j)) 24360da9581dSEinar Lueck goto out_freeoutqbufs; 24374a71df50SFrank Blaschka } 24384a71df50SFrank Blaschka } 24390da9581dSEinar Lueck 24400da9581dSEinar Lueck /* completion */ 24410da9581dSEinar Lueck if (qeth_alloc_cq(card)) 24420da9581dSEinar Lueck goto out_freeoutq; 24430da9581dSEinar Lueck 24444a71df50SFrank Blaschka return 0; 24454a71df50SFrank Blaschka 24460da9581dSEinar Lueck out_freeoutqbufs: 24470da9581dSEinar Lueck while (j > 0) { 24480da9581dSEinar Lueck --j; 24490da9581dSEinar Lueck kmem_cache_free(qeth_qdio_outbuf_cache, 24500da9581dSEinar Lueck card->qdio.out_qs[i]->bufs[j]); 24510da9581dSEinar Lueck card->qdio.out_qs[i]->bufs[j] = NULL; 24520da9581dSEinar Lueck } 24534a71df50SFrank Blaschka out_freeoutq: 2454afa0c590SJulian Wiedmann while (i > 0) 2455afa0c590SJulian Wiedmann qeth_free_output_queue(card->qdio.out_qs[--i]); 24564a71df50SFrank Blaschka kfree(card->qdio.out_qs); 24574a71df50SFrank Blaschka card->qdio.out_qs = NULL; 24584a71df50SFrank Blaschka out_freepool: 24594a71df50SFrank Blaschka qeth_free_buffer_pool(card); 24604a71df50SFrank Blaschka out_freeinq: 24614601ba6cSSebastian Ott qeth_free_qdio_queue(card->qdio.in_q); 24624a71df50SFrank Blaschka card->qdio.in_q = NULL; 24634a71df50SFrank Blaschka out_nomem: 24644a71df50SFrank Blaschka atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); 24654a71df50SFrank Blaschka return -ENOMEM; 24664a71df50SFrank Blaschka } 24674a71df50SFrank Blaschka 2468d445a4e2SSebastian Ott static void qeth_free_qdio_buffers(struct qeth_card *card) 2469d445a4e2SSebastian Ott { 2470d445a4e2SSebastian Ott int i, j; 2471d445a4e2SSebastian Ott 2472d445a4e2SSebastian Ott if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) == 2473d445a4e2SSebastian Ott QETH_QDIO_UNINITIALIZED) 2474d445a4e2SSebastian Ott return; 2475d445a4e2SSebastian Ott 2476d445a4e2SSebastian Ott qeth_free_cq(card); 2477d445a4e2SSebastian Ott cancel_delayed_work_sync(&card->buffer_reclaim_work); 2478d445a4e2SSebastian Ott for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { 2479d445a4e2SSebastian Ott if (card->qdio.in_q->bufs[j].rx_skb) 2480d445a4e2SSebastian Ott dev_kfree_skb_any(card->qdio.in_q->bufs[j].rx_skb); 2481d445a4e2SSebastian Ott } 2482d445a4e2SSebastian Ott qeth_free_qdio_queue(card->qdio.in_q); 2483d445a4e2SSebastian Ott card->qdio.in_q = NULL; 2484d445a4e2SSebastian Ott /* inbound buffer pool */ 2485d445a4e2SSebastian Ott qeth_free_buffer_pool(card); 2486d445a4e2SSebastian Ott /* free outbound qdio_qs */ 2487d445a4e2SSebastian Ott if (card->qdio.out_qs) { 2488afa0c590SJulian Wiedmann for (i = 0; i < card->qdio.no_out_queues; i++) 2489afa0c590SJulian Wiedmann qeth_free_output_queue(card->qdio.out_qs[i]); 2490d445a4e2SSebastian Ott kfree(card->qdio.out_qs); 2491d445a4e2SSebastian Ott card->qdio.out_qs = NULL; 2492d445a4e2SSebastian Ott } 2493d445a4e2SSebastian Ott } 2494d445a4e2SSebastian Ott 24954a71df50SFrank Blaschka static void qeth_create_qib_param_field(struct qeth_card *card, 24964a71df50SFrank Blaschka char *param_field) 24974a71df50SFrank Blaschka { 24984a71df50SFrank Blaschka 24994a71df50SFrank Blaschka param_field[0] = _ascebc['P']; 25004a71df50SFrank Blaschka param_field[1] = _ascebc['C']; 25014a71df50SFrank Blaschka param_field[2] = _ascebc['I']; 25024a71df50SFrank Blaschka param_field[3] = _ascebc['T']; 25034a71df50SFrank Blaschka *((unsigned int *) (¶m_field[4])) = QETH_PCI_THRESHOLD_A(card); 25044a71df50SFrank Blaschka *((unsigned int *) (¶m_field[8])) = QETH_PCI_THRESHOLD_B(card); 25054a71df50SFrank Blaschka *((unsigned int *) (¶m_field[12])) = QETH_PCI_TIMER_VALUE(card); 25064a71df50SFrank Blaschka } 25074a71df50SFrank Blaschka 25084a71df50SFrank Blaschka static void qeth_create_qib_param_field_blkt(struct qeth_card *card, 25094a71df50SFrank Blaschka char *param_field) 25104a71df50SFrank Blaschka { 25114a71df50SFrank Blaschka param_field[16] = _ascebc['B']; 25124a71df50SFrank Blaschka param_field[17] = _ascebc['L']; 25134a71df50SFrank Blaschka param_field[18] = _ascebc['K']; 25144a71df50SFrank Blaschka param_field[19] = _ascebc['T']; 25154a71df50SFrank Blaschka *((unsigned int *) (¶m_field[20])) = card->info.blkt.time_total; 25164a71df50SFrank Blaschka *((unsigned int *) (¶m_field[24])) = card->info.blkt.inter_packet; 25174a71df50SFrank Blaschka *((unsigned int *) (¶m_field[28])) = 25184a71df50SFrank Blaschka card->info.blkt.inter_packet_jumbo; 25194a71df50SFrank Blaschka } 25204a71df50SFrank Blaschka 25214a71df50SFrank Blaschka static int qeth_qdio_activate(struct qeth_card *card) 25224a71df50SFrank Blaschka { 2523d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 3, "qdioact"); 2524779e6e1cSJan Glauber return qdio_activate(CARD_DDEV(card)); 25254a71df50SFrank Blaschka } 25264a71df50SFrank Blaschka 25274a71df50SFrank Blaschka static int qeth_dm_act(struct qeth_card *card) 25284a71df50SFrank Blaschka { 25294a71df50SFrank Blaschka int rc; 25304a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 25314a71df50SFrank Blaschka 2532d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "dmact"); 25334a71df50SFrank Blaschka 25344a71df50SFrank Blaschka iob = qeth_wait_for_buffer(&card->write); 25354a71df50SFrank Blaschka memcpy(iob->data, DM_ACT, DM_ACT_SIZE); 25364a71df50SFrank Blaschka 25374a71df50SFrank Blaschka memcpy(QETH_DM_ACT_DEST_ADDR(iob->data), 25384a71df50SFrank Blaschka &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); 25394a71df50SFrank Blaschka memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data), 25404a71df50SFrank Blaschka &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); 25414a71df50SFrank Blaschka rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL); 25424a71df50SFrank Blaschka return rc; 25434a71df50SFrank Blaschka } 25444a71df50SFrank Blaschka 25454a71df50SFrank Blaschka static int qeth_mpc_initialize(struct qeth_card *card) 25464a71df50SFrank Blaschka { 25474a71df50SFrank Blaschka int rc; 25484a71df50SFrank Blaschka 2549d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "mpcinit"); 25504a71df50SFrank Blaschka 25514a71df50SFrank Blaschka rc = qeth_issue_next_read(card); 25524a71df50SFrank Blaschka if (rc) { 2553d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 25544a71df50SFrank Blaschka return rc; 25554a71df50SFrank Blaschka } 25564a71df50SFrank Blaschka rc = qeth_cm_enable(card); 25574a71df50SFrank Blaschka if (rc) { 2558d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); 25594a71df50SFrank Blaschka goto out_qdio; 25604a71df50SFrank Blaschka } 25614a71df50SFrank Blaschka rc = qeth_cm_setup(card); 25624a71df50SFrank Blaschka if (rc) { 2563d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); 25644a71df50SFrank Blaschka goto out_qdio; 25654a71df50SFrank Blaschka } 25664a71df50SFrank Blaschka rc = qeth_ulp_enable(card); 25674a71df50SFrank Blaschka if (rc) { 2568d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); 25694a71df50SFrank Blaschka goto out_qdio; 25704a71df50SFrank Blaschka } 25714a71df50SFrank Blaschka rc = qeth_ulp_setup(card); 25724a71df50SFrank Blaschka if (rc) { 2573d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); 25744a71df50SFrank Blaschka goto out_qdio; 25754a71df50SFrank Blaschka } 25764a71df50SFrank Blaschka rc = qeth_alloc_qdio_buffers(card); 25774a71df50SFrank Blaschka if (rc) { 2578d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); 25794a71df50SFrank Blaschka goto out_qdio; 25804a71df50SFrank Blaschka } 25814a71df50SFrank Blaschka rc = qeth_qdio_establish(card); 25824a71df50SFrank Blaschka if (rc) { 2583d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); 25844a71df50SFrank Blaschka qeth_free_qdio_buffers(card); 25854a71df50SFrank Blaschka goto out_qdio; 25864a71df50SFrank Blaschka } 25874a71df50SFrank Blaschka rc = qeth_qdio_activate(card); 25884a71df50SFrank Blaschka if (rc) { 2589d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc); 25904a71df50SFrank Blaschka goto out_qdio; 25914a71df50SFrank Blaschka } 25924a71df50SFrank Blaschka rc = qeth_dm_act(card); 25934a71df50SFrank Blaschka if (rc) { 2594d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc); 25954a71df50SFrank Blaschka goto out_qdio; 25964a71df50SFrank Blaschka } 25974a71df50SFrank Blaschka 25984a71df50SFrank Blaschka return 0; 25994a71df50SFrank Blaschka out_qdio: 26004a71df50SFrank Blaschka qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD); 260122ae2790SUrsula Braun qdio_free(CARD_DDEV(card)); 26024a71df50SFrank Blaschka return rc; 26034a71df50SFrank Blaschka } 26044a71df50SFrank Blaschka 26054a71df50SFrank Blaschka void qeth_print_status_message(struct qeth_card *card) 26064a71df50SFrank Blaschka { 26074a71df50SFrank Blaschka switch (card->info.type) { 26085113fec0SUrsula Braun case QETH_CARD_TYPE_OSD: 26095113fec0SUrsula Braun case QETH_CARD_TYPE_OSM: 26105113fec0SUrsula Braun case QETH_CARD_TYPE_OSX: 26114a71df50SFrank Blaschka /* VM will use a non-zero first character 26124a71df50SFrank Blaschka * to indicate a HiperSockets like reporting 26134a71df50SFrank Blaschka * of the level OSA sets the first character to zero 26144a71df50SFrank Blaschka * */ 26154a71df50SFrank Blaschka if (!card->info.mcl_level[0]) { 26164a71df50SFrank Blaschka sprintf(card->info.mcl_level, "%02x%02x", 26174a71df50SFrank Blaschka card->info.mcl_level[2], 26184a71df50SFrank Blaschka card->info.mcl_level[3]); 26194a71df50SFrank Blaschka break; 26204a71df50SFrank Blaschka } 26214a71df50SFrank Blaschka /* fallthrough */ 26224a71df50SFrank Blaschka case QETH_CARD_TYPE_IQD: 2623906f1f07SKlaus-Dieter Wacker if ((card->info.guestlan) || 2624906f1f07SKlaus-Dieter Wacker (card->info.mcl_level[0] & 0x80)) { 26254a71df50SFrank Blaschka card->info.mcl_level[0] = (char) _ebcasc[(__u8) 26264a71df50SFrank Blaschka card->info.mcl_level[0]]; 26274a71df50SFrank Blaschka card->info.mcl_level[1] = (char) _ebcasc[(__u8) 26284a71df50SFrank Blaschka card->info.mcl_level[1]]; 26294a71df50SFrank Blaschka card->info.mcl_level[2] = (char) _ebcasc[(__u8) 26304a71df50SFrank Blaschka card->info.mcl_level[2]]; 26314a71df50SFrank Blaschka card->info.mcl_level[3] = (char) _ebcasc[(__u8) 26324a71df50SFrank Blaschka card->info.mcl_level[3]]; 26334a71df50SFrank Blaschka card->info.mcl_level[QETH_MCL_LENGTH] = 0; 26344a71df50SFrank Blaschka } 26354a71df50SFrank Blaschka break; 26364a71df50SFrank Blaschka default: 26374a71df50SFrank Blaschka memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1); 26384a71df50SFrank Blaschka } 2639239ff408SUrsula Braun dev_info(&card->gdev->dev, 2640239ff408SUrsula Braun "Device is a%s card%s%s%s\nwith link type %s.\n", 2641239ff408SUrsula Braun qeth_get_cardname(card), 2642239ff408SUrsula Braun (card->info.mcl_level[0]) ? " (level: " : "", 2643239ff408SUrsula Braun (card->info.mcl_level[0]) ? card->info.mcl_level : "", 2644239ff408SUrsula Braun (card->info.mcl_level[0]) ? ")" : "", 2645239ff408SUrsula Braun qeth_get_cardname_short(card)); 26464a71df50SFrank Blaschka } 26474a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_print_status_message); 26484a71df50SFrank Blaschka 26494a71df50SFrank Blaschka static void qeth_initialize_working_pool_list(struct qeth_card *card) 26504a71df50SFrank Blaschka { 26514a71df50SFrank Blaschka struct qeth_buffer_pool_entry *entry; 26524a71df50SFrank Blaschka 2653847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "inwrklst"); 26544a71df50SFrank Blaschka 26554a71df50SFrank Blaschka list_for_each_entry(entry, 26564a71df50SFrank Blaschka &card->qdio.init_pool.entry_list, init_list) { 26574a71df50SFrank Blaschka qeth_put_buffer_pool_entry(card, entry); 26584a71df50SFrank Blaschka } 26594a71df50SFrank Blaschka } 26604a71df50SFrank Blaschka 2661cef6ff22SJulian Wiedmann static struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry( 26624a71df50SFrank Blaschka struct qeth_card *card) 26634a71df50SFrank Blaschka { 26644a71df50SFrank Blaschka struct list_head *plh; 26654a71df50SFrank Blaschka struct qeth_buffer_pool_entry *entry; 26664a71df50SFrank Blaschka int i, free; 26674a71df50SFrank Blaschka struct page *page; 26684a71df50SFrank Blaschka 26694a71df50SFrank Blaschka if (list_empty(&card->qdio.in_buf_pool.entry_list)) 26704a71df50SFrank Blaschka return NULL; 26714a71df50SFrank Blaschka 26724a71df50SFrank Blaschka list_for_each(plh, &card->qdio.in_buf_pool.entry_list) { 26734a71df50SFrank Blaschka entry = list_entry(plh, struct qeth_buffer_pool_entry, list); 26744a71df50SFrank Blaschka free = 1; 26754a71df50SFrank Blaschka for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { 26764a71df50SFrank Blaschka if (page_count(virt_to_page(entry->elements[i])) > 1) { 26774a71df50SFrank Blaschka free = 0; 26784a71df50SFrank Blaschka break; 26794a71df50SFrank Blaschka } 26804a71df50SFrank Blaschka } 26814a71df50SFrank Blaschka if (free) { 26824a71df50SFrank Blaschka list_del_init(&entry->list); 26834a71df50SFrank Blaschka return entry; 26844a71df50SFrank Blaschka } 26854a71df50SFrank Blaschka } 26864a71df50SFrank Blaschka 26874a71df50SFrank Blaschka /* no free buffer in pool so take first one and swap pages */ 26884a71df50SFrank Blaschka entry = list_entry(card->qdio.in_buf_pool.entry_list.next, 26894a71df50SFrank Blaschka struct qeth_buffer_pool_entry, list); 26904a71df50SFrank Blaschka for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { 26914a71df50SFrank Blaschka if (page_count(virt_to_page(entry->elements[i])) > 1) { 2692508b3c4fSUrsula Braun page = alloc_page(GFP_ATOMIC); 26934a71df50SFrank Blaschka if (!page) { 26944a71df50SFrank Blaschka return NULL; 26954a71df50SFrank Blaschka } else { 26964a71df50SFrank Blaschka free_page((unsigned long)entry->elements[i]); 26974a71df50SFrank Blaschka entry->elements[i] = page_address(page); 26984a71df50SFrank Blaschka if (card->options.performance_stats) 26994a71df50SFrank Blaschka card->perf_stats.sg_alloc_page_rx++; 27004a71df50SFrank Blaschka } 27014a71df50SFrank Blaschka } 27024a71df50SFrank Blaschka } 27034a71df50SFrank Blaschka list_del_init(&entry->list); 27044a71df50SFrank Blaschka return entry; 27054a71df50SFrank Blaschka } 27064a71df50SFrank Blaschka 27074a71df50SFrank Blaschka static int qeth_init_input_buffer(struct qeth_card *card, 27084a71df50SFrank Blaschka struct qeth_qdio_buffer *buf) 27094a71df50SFrank Blaschka { 27104a71df50SFrank Blaschka struct qeth_buffer_pool_entry *pool_entry; 27114a71df50SFrank Blaschka int i; 27124a71df50SFrank Blaschka 2713b3332930SFrank Blaschka if ((card->options.cq == QETH_CQ_ENABLED) && (!buf->rx_skb)) { 271437cf05d2SJulian Wiedmann buf->rx_skb = netdev_alloc_skb(card->dev, 271537cf05d2SJulian Wiedmann QETH_RX_PULL_LEN + ETH_HLEN); 2716b3332930SFrank Blaschka if (!buf->rx_skb) 2717b3332930SFrank Blaschka return 1; 2718b3332930SFrank Blaschka } 2719b3332930SFrank Blaschka 27204a71df50SFrank Blaschka pool_entry = qeth_find_free_buffer_pool_entry(card); 27214a71df50SFrank Blaschka if (!pool_entry) 27224a71df50SFrank Blaschka return 1; 27234a71df50SFrank Blaschka 27244a71df50SFrank Blaschka /* 27254a71df50SFrank Blaschka * since the buffer is accessed only from the input_tasklet 27264a71df50SFrank Blaschka * there shouldn't be a need to synchronize; also, since we use 27274a71df50SFrank Blaschka * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off 27284a71df50SFrank Blaschka * buffers 27294a71df50SFrank Blaschka */ 27304a71df50SFrank Blaschka 27314a71df50SFrank Blaschka buf->pool_entry = pool_entry; 27324a71df50SFrank Blaschka for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { 27334a71df50SFrank Blaschka buf->buffer->element[i].length = PAGE_SIZE; 27344a71df50SFrank Blaschka buf->buffer->element[i].addr = pool_entry->elements[i]; 27354a71df50SFrank Blaschka if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1) 27363ec90878SJan Glauber buf->buffer->element[i].eflags = SBAL_EFLAGS_LAST_ENTRY; 27374a71df50SFrank Blaschka else 27383ec90878SJan Glauber buf->buffer->element[i].eflags = 0; 27393ec90878SJan Glauber buf->buffer->element[i].sflags = 0; 27404a71df50SFrank Blaschka } 27414a71df50SFrank Blaschka return 0; 27424a71df50SFrank Blaschka } 27434a71df50SFrank Blaschka 27444a71df50SFrank Blaschka int qeth_init_qdio_queues(struct qeth_card *card) 27454a71df50SFrank Blaschka { 27464a71df50SFrank Blaschka int i, j; 27474a71df50SFrank Blaschka int rc; 27484a71df50SFrank Blaschka 2749d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "initqdqs"); 27504a71df50SFrank Blaschka 27514a71df50SFrank Blaschka /* inbound queue */ 27521b45c80bSJulian Wiedmann qdio_reset_buffers(card->qdio.in_q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q); 27531b45c80bSJulian Wiedmann memset(&card->rx, 0, sizeof(struct qeth_rx)); 27544a71df50SFrank Blaschka qeth_initialize_working_pool_list(card); 27554a71df50SFrank Blaschka /*give only as many buffers to hardware as we have buffer pool entries*/ 27564a71df50SFrank Blaschka for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i) 27574a71df50SFrank Blaschka qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]); 27584a71df50SFrank Blaschka card->qdio.in_q->next_buf_to_init = 27594a71df50SFrank Blaschka card->qdio.in_buf_pool.buf_count - 1; 27604a71df50SFrank Blaschka rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0, 2761779e6e1cSJan Glauber card->qdio.in_buf_pool.buf_count - 1); 27624a71df50SFrank Blaschka if (rc) { 2763d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 27644a71df50SFrank Blaschka return rc; 27654a71df50SFrank Blaschka } 27660da9581dSEinar Lueck 27670da9581dSEinar Lueck /* completion */ 27680da9581dSEinar Lueck rc = qeth_cq_init(card); 27690da9581dSEinar Lueck if (rc) { 27700da9581dSEinar Lueck return rc; 27710da9581dSEinar Lueck } 27720da9581dSEinar Lueck 27734a71df50SFrank Blaschka /* outbound queue */ 27744a71df50SFrank Blaschka for (i = 0; i < card->qdio.no_out_queues; ++i) { 2775d445a4e2SSebastian Ott qdio_reset_buffers(card->qdio.out_qs[i]->qdio_bufs, 2776d445a4e2SSebastian Ott QDIO_MAX_BUFFERS_PER_Q); 27774a71df50SFrank Blaschka for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { 27784a71df50SFrank Blaschka qeth_clear_output_buffer(card->qdio.out_qs[i], 27793b346c18SJulian Wiedmann card->qdio.out_qs[i]->bufs[j]); 27804a71df50SFrank Blaschka } 27814a71df50SFrank Blaschka card->qdio.out_qs[i]->card = card; 27824a71df50SFrank Blaschka card->qdio.out_qs[i]->next_buf_to_fill = 0; 27834a71df50SFrank Blaschka card->qdio.out_qs[i]->do_pack = 0; 27844a71df50SFrank Blaschka atomic_set(&card->qdio.out_qs[i]->used_buffers, 0); 27854a71df50SFrank Blaschka atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0); 27864a71df50SFrank Blaschka atomic_set(&card->qdio.out_qs[i]->state, 27874a71df50SFrank Blaschka QETH_OUT_Q_UNLOCKED); 27884a71df50SFrank Blaschka } 27894a71df50SFrank Blaschka return 0; 27904a71df50SFrank Blaschka } 27914a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_init_qdio_queues); 27924a71df50SFrank Blaschka 2793cef6ff22SJulian Wiedmann static __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type) 27944a71df50SFrank Blaschka { 27954a71df50SFrank Blaschka switch (link_type) { 27964a71df50SFrank Blaschka case QETH_LINK_TYPE_HSTR: 27974a71df50SFrank Blaschka return 2; 27984a71df50SFrank Blaschka default: 27994a71df50SFrank Blaschka return 1; 28004a71df50SFrank Blaschka } 28014a71df50SFrank Blaschka } 28024a71df50SFrank Blaschka 28034a71df50SFrank Blaschka static void qeth_fill_ipacmd_header(struct qeth_card *card, 2804500abbf0SJulian Wiedmann struct qeth_ipa_cmd *cmd, 2805500abbf0SJulian Wiedmann enum qeth_ipa_cmds command, 28064a71df50SFrank Blaschka enum qeth_prot_versions prot) 28074a71df50SFrank Blaschka { 28084a71df50SFrank Blaschka cmd->hdr.command = command; 28094a71df50SFrank Blaschka cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST; 2810d22ffb5aSJulian Wiedmann /* cmd->hdr.seqno is set by qeth_send_control_data() */ 28114a71df50SFrank Blaschka cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type); 281292d27209SJulian Wiedmann cmd->hdr.rel_adapter_no = (u8) card->dev->dev_port; 28134fda3354SJulian Wiedmann cmd->hdr.prim_version_no = IS_LAYER2(card) ? 2 : 1; 28144a71df50SFrank Blaschka cmd->hdr.param_count = 1; 28154a71df50SFrank Blaschka cmd->hdr.prot_version = prot; 28164a71df50SFrank Blaschka } 28174a71df50SFrank Blaschka 2818605c9d5fSJulian Wiedmann void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob) 2819605c9d5fSJulian Wiedmann { 2820605c9d5fSJulian Wiedmann u8 prot_type = qeth_mpc_select_prot_type(card); 2821605c9d5fSJulian Wiedmann 2822605c9d5fSJulian Wiedmann memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); 2823605c9d5fSJulian Wiedmann memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1); 2824605c9d5fSJulian Wiedmann memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), 2825605c9d5fSJulian Wiedmann &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); 2826605c9d5fSJulian Wiedmann } 2827605c9d5fSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd); 2828605c9d5fSJulian Wiedmann 28294a71df50SFrank Blaschka struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card, 28304a71df50SFrank Blaschka enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot) 28314a71df50SFrank Blaschka { 28324a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 28334a71df50SFrank Blaschka 28341aec42bcSThomas Richter iob = qeth_get_buffer(&card->write); 28351aec42bcSThomas Richter if (iob) { 2836605c9d5fSJulian Wiedmann qeth_prepare_ipa_cmd(card, iob); 2837ff5caa7aSJulian Wiedmann qeth_fill_ipacmd_header(card, __ipa_cmd(iob), ipacmd, prot); 28381aec42bcSThomas Richter } else { 28391aec42bcSThomas Richter dev_warn(&card->gdev->dev, 28401aec42bcSThomas Richter "The qeth driver ran out of channel command buffers\n"); 2841e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(1, "device %x ran out of channel command buffers", 2842e19e5be8SJulian Wiedmann CARD_DEVID(card)); 28431aec42bcSThomas Richter } 28444a71df50SFrank Blaschka 28454a71df50SFrank Blaschka return iob; 28464a71df50SFrank Blaschka } 28474a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer); 28484a71df50SFrank Blaschka 2849efbbc1d5SEugene Crosser /** 2850efbbc1d5SEugene Crosser * qeth_send_ipa_cmd() - send an IPA command 2851efbbc1d5SEugene Crosser * 2852efbbc1d5SEugene Crosser * See qeth_send_control_data() for explanation of the arguments. 2853efbbc1d5SEugene Crosser */ 2854efbbc1d5SEugene Crosser 28554a71df50SFrank Blaschka int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, 28564a71df50SFrank Blaschka int (*reply_cb)(struct qeth_card *, struct qeth_reply*, 28574a71df50SFrank Blaschka unsigned long), 28584a71df50SFrank Blaschka void *reply_param) 28594a71df50SFrank Blaschka { 28604a71df50SFrank Blaschka int rc; 28614a71df50SFrank Blaschka 2862847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "sendipa"); 2863d11ba0c4SPeter Tiedemann rc = qeth_send_control_data(card, IPA_CMD_LENGTH, 2864d11ba0c4SPeter Tiedemann iob, reply_cb, reply_param); 2865908abbb5SUrsula Braun if (rc == -ETIME) { 2866908abbb5SUrsula Braun qeth_clear_ipacmd_list(card); 2867908abbb5SUrsula Braun qeth_schedule_recovery(card); 2868908abbb5SUrsula Braun } 28694a71df50SFrank Blaschka return rc; 28704a71df50SFrank Blaschka } 28714a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd); 28724a71df50SFrank Blaschka 287310340510SJulian Wiedmann static int qeth_send_startlan(struct qeth_card *card) 28744a71df50SFrank Blaschka { 28754a71df50SFrank Blaschka int rc; 28764a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 28774a71df50SFrank Blaschka 2878d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "strtlan"); 28794a71df50SFrank Blaschka 288070919e23SUrsula Braun iob = qeth_get_ipacmd_buffer(card, IPA_CMD_STARTLAN, 0); 28811aec42bcSThomas Richter if (!iob) 28821aec42bcSThomas Richter return -ENOMEM; 288370919e23SUrsula Braun rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); 28844a71df50SFrank Blaschka return rc; 28854a71df50SFrank Blaschka } 28864a71df50SFrank Blaschka 2887686c97eeSJulian Wiedmann static int qeth_setadpparms_inspect_rc(struct qeth_ipa_cmd *cmd) 28884a71df50SFrank Blaschka { 2889686c97eeSJulian Wiedmann if (!cmd->hdr.return_code) 28904a71df50SFrank Blaschka cmd->hdr.return_code = 28914a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.return_code; 2892686c97eeSJulian Wiedmann return cmd->hdr.return_code; 28934a71df50SFrank Blaschka } 28944a71df50SFrank Blaschka 28954a71df50SFrank Blaschka static int qeth_query_setadapterparms_cb(struct qeth_card *card, 28964a71df50SFrank Blaschka struct qeth_reply *reply, unsigned long data) 28974a71df50SFrank Blaschka { 2898686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 28994a71df50SFrank Blaschka 2900847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "quyadpcb"); 2901686c97eeSJulian Wiedmann if (qeth_setadpparms_inspect_rc(cmd)) 2902686c97eeSJulian Wiedmann return 0; 29034a71df50SFrank Blaschka 29045113fec0SUrsula Braun if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) { 29054a71df50SFrank Blaschka card->info.link_type = 29064a71df50SFrank Blaschka cmd->data.setadapterparms.data.query_cmds_supp.lan_type; 29075113fec0SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "lnk %d", card->info.link_type); 29085113fec0SUrsula Braun } 29094a71df50SFrank Blaschka card->options.adp.supported_funcs = 29104a71df50SFrank Blaschka cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds; 2911686c97eeSJulian Wiedmann return 0; 29124a71df50SFrank Blaschka } 29134a71df50SFrank Blaschka 2914eb3fb0baSStefan Raspl static struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card, 29154a71df50SFrank Blaschka __u32 command, __u32 cmdlen) 29164a71df50SFrank Blaschka { 29174a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 29184a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 29194a71df50SFrank Blaschka 29204a71df50SFrank Blaschka iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS, 29214a71df50SFrank Blaschka QETH_PROT_IPV4); 29221aec42bcSThomas Richter if (iob) { 2923ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 29244a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.cmdlength = cmdlen; 29254a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.command_code = command; 29264a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.used_total = 1; 29274a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.seq_no = 1; 29281aec42bcSThomas Richter } 29294a71df50SFrank Blaschka 29304a71df50SFrank Blaschka return iob; 29314a71df50SFrank Blaschka } 29324a71df50SFrank Blaschka 293309960b3aSJulian Wiedmann static int qeth_query_setadapterparms(struct qeth_card *card) 29344a71df50SFrank Blaschka { 29354a71df50SFrank Blaschka int rc; 29364a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 29374a71df50SFrank Blaschka 2938847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "queryadp"); 29394a71df50SFrank Blaschka iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED, 29404a71df50SFrank Blaschka sizeof(struct qeth_ipacmd_setadpparms)); 29411aec42bcSThomas Richter if (!iob) 29421aec42bcSThomas Richter return -ENOMEM; 29434a71df50SFrank Blaschka rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL); 29444a71df50SFrank Blaschka return rc; 29454a71df50SFrank Blaschka } 29464a71df50SFrank Blaschka 29471da74b1cSFrank Blaschka static int qeth_query_ipassists_cb(struct qeth_card *card, 29481da74b1cSFrank Blaschka struct qeth_reply *reply, unsigned long data) 29491da74b1cSFrank Blaschka { 29501da74b1cSFrank Blaschka struct qeth_ipa_cmd *cmd; 29511da74b1cSFrank Blaschka 29521da74b1cSFrank Blaschka QETH_DBF_TEXT(SETUP, 2, "qipasscb"); 29531da74b1cSFrank Blaschka 29541da74b1cSFrank Blaschka cmd = (struct qeth_ipa_cmd *) data; 2955a134884aSStefan Raspl 2956a134884aSStefan Raspl switch (cmd->hdr.return_code) { 2957a134884aSStefan Raspl case IPA_RC_NOTSUPP: 2958a134884aSStefan Raspl case IPA_RC_L2_UNSUPPORTED_CMD: 2959a134884aSStefan Raspl QETH_DBF_TEXT(SETUP, 2, "ipaunsup"); 2960a134884aSStefan Raspl card->options.ipa4.supported_funcs |= IPA_SETADAPTERPARMS; 2961a134884aSStefan Raspl card->options.ipa6.supported_funcs |= IPA_SETADAPTERPARMS; 296231c92732SJulian Wiedmann return 0; 2963a134884aSStefan Raspl default: 2964a134884aSStefan Raspl if (cmd->hdr.return_code) { 2965e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(1, "IPA_CMD_QIPASSIST on device %x: Unhandled rc=%#x\n", 2966e19e5be8SJulian Wiedmann CARD_DEVID(card), 2967a134884aSStefan Raspl cmd->hdr.return_code); 2968a134884aSStefan Raspl return 0; 2969a134884aSStefan Raspl } 2970a134884aSStefan Raspl } 2971a134884aSStefan Raspl 29721da74b1cSFrank Blaschka if (cmd->hdr.prot_version == QETH_PROT_IPV4) { 29731da74b1cSFrank Blaschka card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported; 29741da74b1cSFrank Blaschka card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled; 2975a134884aSStefan Raspl } else if (cmd->hdr.prot_version == QETH_PROT_IPV6) { 29761da74b1cSFrank Blaschka card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported; 29771da74b1cSFrank Blaschka card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled; 2978a134884aSStefan Raspl } else 2979e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(1, "IPA_CMD_QIPASSIST on device %x: Flawed LIC detected\n", 2980e19e5be8SJulian Wiedmann CARD_DEVID(card)); 29811da74b1cSFrank Blaschka return 0; 29821da74b1cSFrank Blaschka } 29831da74b1cSFrank Blaschka 298409960b3aSJulian Wiedmann static int qeth_query_ipassists(struct qeth_card *card, 298509960b3aSJulian Wiedmann enum qeth_prot_versions prot) 29861da74b1cSFrank Blaschka { 29871da74b1cSFrank Blaschka int rc; 29881da74b1cSFrank Blaschka struct qeth_cmd_buffer *iob; 29891da74b1cSFrank Blaschka 29901da74b1cSFrank Blaschka QETH_DBF_TEXT_(SETUP, 2, "qipassi%i", prot); 29911da74b1cSFrank Blaschka iob = qeth_get_ipacmd_buffer(card, IPA_CMD_QIPASSIST, prot); 29921aec42bcSThomas Richter if (!iob) 29931aec42bcSThomas Richter return -ENOMEM; 29941da74b1cSFrank Blaschka rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL); 29951da74b1cSFrank Blaschka return rc; 29961da74b1cSFrank Blaschka } 29971da74b1cSFrank Blaschka 299845cbb2e4SStefan Raspl static int qeth_query_switch_attributes_cb(struct qeth_card *card, 299945cbb2e4SStefan Raspl struct qeth_reply *reply, unsigned long data) 300045cbb2e4SStefan Raspl { 3001686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 300245cbb2e4SStefan Raspl struct qeth_query_switch_attributes *attrs; 3003686c97eeSJulian Wiedmann struct qeth_switch_info *sw_info; 300445cbb2e4SStefan Raspl 300545cbb2e4SStefan Raspl QETH_CARD_TEXT(card, 2, "qswiatcb"); 3006686c97eeSJulian Wiedmann if (qeth_setadpparms_inspect_rc(cmd)) 3007686c97eeSJulian Wiedmann return 0; 3008686c97eeSJulian Wiedmann 300945cbb2e4SStefan Raspl sw_info = (struct qeth_switch_info *)reply->param; 301045cbb2e4SStefan Raspl attrs = &cmd->data.setadapterparms.data.query_switch_attributes; 301145cbb2e4SStefan Raspl sw_info->capabilities = attrs->capabilities; 301245cbb2e4SStefan Raspl sw_info->settings = attrs->settings; 301345cbb2e4SStefan Raspl QETH_CARD_TEXT_(card, 2, "%04x%04x", sw_info->capabilities, 301445cbb2e4SStefan Raspl sw_info->settings); 301545cbb2e4SStefan Raspl return 0; 301645cbb2e4SStefan Raspl } 301745cbb2e4SStefan Raspl 301845cbb2e4SStefan Raspl int qeth_query_switch_attributes(struct qeth_card *card, 301945cbb2e4SStefan Raspl struct qeth_switch_info *sw_info) 302045cbb2e4SStefan Raspl { 302145cbb2e4SStefan Raspl struct qeth_cmd_buffer *iob; 302245cbb2e4SStefan Raspl 302345cbb2e4SStefan Raspl QETH_CARD_TEXT(card, 2, "qswiattr"); 302445cbb2e4SStefan Raspl if (!qeth_adp_supported(card, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES)) 302545cbb2e4SStefan Raspl return -EOPNOTSUPP; 302645cbb2e4SStefan Raspl if (!netif_carrier_ok(card->dev)) 302745cbb2e4SStefan Raspl return -ENOMEDIUM; 302845cbb2e4SStefan Raspl iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES, 302945cbb2e4SStefan Raspl sizeof(struct qeth_ipacmd_setadpparms_hdr)); 30301aec42bcSThomas Richter if (!iob) 30311aec42bcSThomas Richter return -ENOMEM; 303245cbb2e4SStefan Raspl return qeth_send_ipa_cmd(card, iob, 303345cbb2e4SStefan Raspl qeth_query_switch_attributes_cb, sw_info); 303445cbb2e4SStefan Raspl } 303545cbb2e4SStefan Raspl 30361da74b1cSFrank Blaschka static int qeth_query_setdiagass_cb(struct qeth_card *card, 30371da74b1cSFrank Blaschka struct qeth_reply *reply, unsigned long data) 30381da74b1cSFrank Blaschka { 30391da74b1cSFrank Blaschka struct qeth_ipa_cmd *cmd; 30401da74b1cSFrank Blaschka __u16 rc; 30411da74b1cSFrank Blaschka 30421da74b1cSFrank Blaschka cmd = (struct qeth_ipa_cmd *)data; 30431da74b1cSFrank Blaschka rc = cmd->hdr.return_code; 30441da74b1cSFrank Blaschka if (rc) 30451da74b1cSFrank Blaschka QETH_CARD_TEXT_(card, 2, "diagq:%x", rc); 30461da74b1cSFrank Blaschka else 30471da74b1cSFrank Blaschka card->info.diagass_support = cmd->data.diagass.ext; 30481da74b1cSFrank Blaschka return 0; 30491da74b1cSFrank Blaschka } 30501da74b1cSFrank Blaschka 30511da74b1cSFrank Blaschka static int qeth_query_setdiagass(struct qeth_card *card) 30521da74b1cSFrank Blaschka { 30531da74b1cSFrank Blaschka struct qeth_cmd_buffer *iob; 30541da74b1cSFrank Blaschka struct qeth_ipa_cmd *cmd; 30551da74b1cSFrank Blaschka 30561da74b1cSFrank Blaschka QETH_DBF_TEXT(SETUP, 2, "qdiagass"); 30571da74b1cSFrank Blaschka iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0); 30581aec42bcSThomas Richter if (!iob) 30591aec42bcSThomas Richter return -ENOMEM; 3060ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 30611da74b1cSFrank Blaschka cmd->data.diagass.subcmd_len = 16; 30621da74b1cSFrank Blaschka cmd->data.diagass.subcmd = QETH_DIAGS_CMD_QUERY; 30631da74b1cSFrank Blaschka return qeth_send_ipa_cmd(card, iob, qeth_query_setdiagass_cb, NULL); 30641da74b1cSFrank Blaschka } 30651da74b1cSFrank Blaschka 30661da74b1cSFrank Blaschka static void qeth_get_trap_id(struct qeth_card *card, struct qeth_trap_id *tid) 30671da74b1cSFrank Blaschka { 30681da74b1cSFrank Blaschka unsigned long info = get_zeroed_page(GFP_KERNEL); 30691da74b1cSFrank Blaschka struct sysinfo_2_2_2 *info222 = (struct sysinfo_2_2_2 *)info; 30701da74b1cSFrank Blaschka struct sysinfo_3_2_2 *info322 = (struct sysinfo_3_2_2 *)info; 30711da74b1cSFrank Blaschka struct ccw_dev_id ccwid; 3072caf757c6SHeiko Carstens int level; 30731da74b1cSFrank Blaschka 30741da74b1cSFrank Blaschka tid->chpid = card->info.chpid; 30751da74b1cSFrank Blaschka ccw_device_get_id(CARD_RDEV(card), &ccwid); 30761da74b1cSFrank Blaschka tid->ssid = ccwid.ssid; 30771da74b1cSFrank Blaschka tid->devno = ccwid.devno; 30781da74b1cSFrank Blaschka if (!info) 30791da74b1cSFrank Blaschka return; 3080caf757c6SHeiko Carstens level = stsi(NULL, 0, 0, 0); 3081caf757c6SHeiko Carstens if ((level >= 2) && (stsi(info222, 2, 2, 2) == 0)) 30821da74b1cSFrank Blaschka tid->lparnr = info222->lpar_number; 3083caf757c6SHeiko Carstens if ((level >= 3) && (stsi(info322, 3, 2, 2) == 0)) { 30841da74b1cSFrank Blaschka EBCASC(info322->vm[0].name, sizeof(info322->vm[0].name)); 30851da74b1cSFrank Blaschka memcpy(tid->vmname, info322->vm[0].name, sizeof(tid->vmname)); 30861da74b1cSFrank Blaschka } 30871da74b1cSFrank Blaschka free_page(info); 30881da74b1cSFrank Blaschka return; 30891da74b1cSFrank Blaschka } 30901da74b1cSFrank Blaschka 30911da74b1cSFrank Blaschka static int qeth_hw_trap_cb(struct qeth_card *card, 30921da74b1cSFrank Blaschka struct qeth_reply *reply, unsigned long data) 30931da74b1cSFrank Blaschka { 30941da74b1cSFrank Blaschka struct qeth_ipa_cmd *cmd; 30951da74b1cSFrank Blaschka __u16 rc; 30961da74b1cSFrank Blaschka 30971da74b1cSFrank Blaschka cmd = (struct qeth_ipa_cmd *)data; 30981da74b1cSFrank Blaschka rc = cmd->hdr.return_code; 30991da74b1cSFrank Blaschka if (rc) 31001da74b1cSFrank Blaschka QETH_CARD_TEXT_(card, 2, "trapc:%x", rc); 31011da74b1cSFrank Blaschka return 0; 31021da74b1cSFrank Blaschka } 31031da74b1cSFrank Blaschka 31041da74b1cSFrank Blaschka int qeth_hw_trap(struct qeth_card *card, enum qeth_diags_trap_action action) 31051da74b1cSFrank Blaschka { 31061da74b1cSFrank Blaschka struct qeth_cmd_buffer *iob; 31071da74b1cSFrank Blaschka struct qeth_ipa_cmd *cmd; 31081da74b1cSFrank Blaschka 31091da74b1cSFrank Blaschka QETH_DBF_TEXT(SETUP, 2, "diagtrap"); 31101da74b1cSFrank Blaschka iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0); 31111aec42bcSThomas Richter if (!iob) 31121aec42bcSThomas Richter return -ENOMEM; 3113ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 31141da74b1cSFrank Blaschka cmd->data.diagass.subcmd_len = 80; 31151da74b1cSFrank Blaschka cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRAP; 31161da74b1cSFrank Blaschka cmd->data.diagass.type = 1; 31171da74b1cSFrank Blaschka cmd->data.diagass.action = action; 31181da74b1cSFrank Blaschka switch (action) { 31191da74b1cSFrank Blaschka case QETH_DIAGS_TRAP_ARM: 31201da74b1cSFrank Blaschka cmd->data.diagass.options = 0x0003; 31211da74b1cSFrank Blaschka cmd->data.diagass.ext = 0x00010000 + 31221da74b1cSFrank Blaschka sizeof(struct qeth_trap_id); 31231da74b1cSFrank Blaschka qeth_get_trap_id(card, 31241da74b1cSFrank Blaschka (struct qeth_trap_id *)cmd->data.diagass.cdata); 31251da74b1cSFrank Blaschka break; 31261da74b1cSFrank Blaschka case QETH_DIAGS_TRAP_DISARM: 31271da74b1cSFrank Blaschka cmd->data.diagass.options = 0x0001; 31281da74b1cSFrank Blaschka break; 31291da74b1cSFrank Blaschka case QETH_DIAGS_TRAP_CAPTURE: 31301da74b1cSFrank Blaschka break; 31311da74b1cSFrank Blaschka } 31321da74b1cSFrank Blaschka return qeth_send_ipa_cmd(card, iob, qeth_hw_trap_cb, NULL); 31331da74b1cSFrank Blaschka } 31341da74b1cSFrank Blaschka EXPORT_SYMBOL_GPL(qeth_hw_trap); 31351da74b1cSFrank Blaschka 3136d73ef324SJulian Wiedmann static int qeth_check_qdio_errors(struct qeth_card *card, 3137d73ef324SJulian Wiedmann struct qdio_buffer *buf, 3138d73ef324SJulian Wiedmann unsigned int qdio_error, 3139d73ef324SJulian Wiedmann const char *dbftext) 31404a71df50SFrank Blaschka { 3141779e6e1cSJan Glauber if (qdio_error) { 3142847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, dbftext); 314338593d01SCarsten Otte QETH_CARD_TEXT_(card, 2, " F15=%02X", 31443ec90878SJan Glauber buf->element[15].sflags); 314538593d01SCarsten Otte QETH_CARD_TEXT_(card, 2, " F14=%02X", 31463ec90878SJan Glauber buf->element[14].sflags); 314738593d01SCarsten Otte QETH_CARD_TEXT_(card, 2, " qerr=%X", qdio_error); 31483ec90878SJan Glauber if ((buf->element[15].sflags) == 0x12) { 314976b11f8eSUrsula Braun card->stats.rx_dropped++; 315076b11f8eSUrsula Braun return 0; 315176b11f8eSUrsula Braun } else 31524a71df50SFrank Blaschka return 1; 31534a71df50SFrank Blaschka } 31544a71df50SFrank Blaschka return 0; 31554a71df50SFrank Blaschka } 31564a71df50SFrank Blaschka 3157d73ef324SJulian Wiedmann static void qeth_queue_input_buffer(struct qeth_card *card, int index) 31584a71df50SFrank Blaschka { 31594a71df50SFrank Blaschka struct qeth_qdio_q *queue = card->qdio.in_q; 3160b3332930SFrank Blaschka struct list_head *lh; 31614a71df50SFrank Blaschka int count; 31624a71df50SFrank Blaschka int i; 31634a71df50SFrank Blaschka int rc; 31644a71df50SFrank Blaschka int newcount = 0; 31654a71df50SFrank Blaschka 31664a71df50SFrank Blaschka count = (index < queue->next_buf_to_init)? 31674a71df50SFrank Blaschka card->qdio.in_buf_pool.buf_count - 31684a71df50SFrank Blaschka (queue->next_buf_to_init - index) : 31694a71df50SFrank Blaschka card->qdio.in_buf_pool.buf_count - 31704a71df50SFrank Blaschka (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index); 31714a71df50SFrank Blaschka /* only requeue at a certain threshold to avoid SIGAs */ 31724a71df50SFrank Blaschka if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) { 31734a71df50SFrank Blaschka for (i = queue->next_buf_to_init; 31744a71df50SFrank Blaschka i < queue->next_buf_to_init + count; ++i) { 31754a71df50SFrank Blaschka if (qeth_init_input_buffer(card, 31764a71df50SFrank Blaschka &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) { 31774a71df50SFrank Blaschka break; 31784a71df50SFrank Blaschka } else { 31794a71df50SFrank Blaschka newcount++; 31804a71df50SFrank Blaschka } 31814a71df50SFrank Blaschka } 31824a71df50SFrank Blaschka 31834a71df50SFrank Blaschka if (newcount < count) { 31844a71df50SFrank Blaschka /* we are in memory shortage so we switch back to 31854a71df50SFrank Blaschka traditional skb allocation and drop packages */ 31864a71df50SFrank Blaschka atomic_set(&card->force_alloc_skb, 3); 31874a71df50SFrank Blaschka count = newcount; 31884a71df50SFrank Blaschka } else { 31894a71df50SFrank Blaschka atomic_add_unless(&card->force_alloc_skb, -1, 0); 31904a71df50SFrank Blaschka } 31914a71df50SFrank Blaschka 3192b3332930SFrank Blaschka if (!count) { 3193b3332930SFrank Blaschka i = 0; 3194b3332930SFrank Blaschka list_for_each(lh, &card->qdio.in_buf_pool.entry_list) 3195b3332930SFrank Blaschka i++; 3196b3332930SFrank Blaschka if (i == card->qdio.in_buf_pool.buf_count) { 3197b3332930SFrank Blaschka QETH_CARD_TEXT(card, 2, "qsarbw"); 3198b3332930SFrank Blaschka card->reclaim_index = index; 3199b3332930SFrank Blaschka schedule_delayed_work( 3200b3332930SFrank Blaschka &card->buffer_reclaim_work, 3201b3332930SFrank Blaschka QETH_RECLAIM_WORK_TIME); 3202b3332930SFrank Blaschka } 3203b3332930SFrank Blaschka return; 3204b3332930SFrank Blaschka } 3205b3332930SFrank Blaschka 32064a71df50SFrank Blaschka /* 32074a71df50SFrank Blaschka * according to old code it should be avoided to requeue all 32084a71df50SFrank Blaschka * 128 buffers in order to benefit from PCI avoidance. 32094a71df50SFrank Blaschka * this function keeps at least one buffer (the buffer at 32104a71df50SFrank Blaschka * 'index') un-requeued -> this buffer is the first buffer that 32114a71df50SFrank Blaschka * will be requeued the next time 32124a71df50SFrank Blaschka */ 32134a71df50SFrank Blaschka if (card->options.performance_stats) { 32144a71df50SFrank Blaschka card->perf_stats.inbound_do_qdio_cnt++; 32154a71df50SFrank Blaschka card->perf_stats.inbound_do_qdio_start_time = 32164a71df50SFrank Blaschka qeth_get_micros(); 32174a71df50SFrank Blaschka } 3218779e6e1cSJan Glauber rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 3219779e6e1cSJan Glauber queue->next_buf_to_init, count); 32204a71df50SFrank Blaschka if (card->options.performance_stats) 32214a71df50SFrank Blaschka card->perf_stats.inbound_do_qdio_time += 32224a71df50SFrank Blaschka qeth_get_micros() - 32234a71df50SFrank Blaschka card->perf_stats.inbound_do_qdio_start_time; 32244a71df50SFrank Blaschka if (rc) { 3225847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "qinberr"); 32264a71df50SFrank Blaschka } 32274a71df50SFrank Blaschka queue->next_buf_to_init = (queue->next_buf_to_init + count) % 32284a71df50SFrank Blaschka QDIO_MAX_BUFFERS_PER_Q; 32294a71df50SFrank Blaschka } 32304a71df50SFrank Blaschka } 3231d73ef324SJulian Wiedmann 3232d73ef324SJulian Wiedmann static void qeth_buffer_reclaim_work(struct work_struct *work) 3233d73ef324SJulian Wiedmann { 3234d73ef324SJulian Wiedmann struct qeth_card *card = container_of(work, struct qeth_card, 3235d73ef324SJulian Wiedmann buffer_reclaim_work.work); 3236d73ef324SJulian Wiedmann 3237d73ef324SJulian Wiedmann QETH_CARD_TEXT_(card, 2, "brw:%x", card->reclaim_index); 3238d73ef324SJulian Wiedmann qeth_queue_input_buffer(card, card->reclaim_index); 3239d73ef324SJulian Wiedmann } 32404a71df50SFrank Blaschka 3241d7a39937SJulian Wiedmann static void qeth_handle_send_error(struct qeth_card *card, 3242779e6e1cSJan Glauber struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err) 32434a71df50SFrank Blaschka { 32443ec90878SJan Glauber int sbalf15 = buffer->buffer->element[15].sflags; 32454a71df50SFrank Blaschka 3246847a50fdSCarsten Otte QETH_CARD_TEXT(card, 6, "hdsnderr"); 324758490f18SKlaus-Dieter Wacker if (card->info.type == QETH_CARD_TYPE_IQD) { 324858490f18SKlaus-Dieter Wacker if (sbalf15 == 0) { 324958490f18SKlaus-Dieter Wacker qdio_err = 0; 325058490f18SKlaus-Dieter Wacker } else { 325158490f18SKlaus-Dieter Wacker qdio_err = 1; 325258490f18SKlaus-Dieter Wacker } 325358490f18SKlaus-Dieter Wacker } 325476b11f8eSUrsula Braun qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qouterr"); 3255d303b6fdSJan Glauber 3256d303b6fdSJan Glauber if (!qdio_err) 3257d7a39937SJulian Wiedmann return; 3258d303b6fdSJan Glauber 3259d303b6fdSJan Glauber if ((sbalf15 >= 15) && (sbalf15 <= 31)) 3260d7a39937SJulian Wiedmann return; 3261d303b6fdSJan Glauber 3262847a50fdSCarsten Otte QETH_CARD_TEXT(card, 1, "lnkfail"); 3263847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 1, "%04x %02x", 32644a71df50SFrank Blaschka (u16)qdio_err, (u8)sbalf15); 32654a71df50SFrank Blaschka } 32664a71df50SFrank Blaschka 3267664e42acSJulian Wiedmann /** 3268664e42acSJulian Wiedmann * qeth_prep_flush_pack_buffer - Prepares flushing of a packing buffer. 3269664e42acSJulian Wiedmann * @queue: queue to check for packing buffer 3270664e42acSJulian Wiedmann * 3271664e42acSJulian Wiedmann * Returns number of buffers that were prepared for flush. 3272664e42acSJulian Wiedmann */ 3273664e42acSJulian Wiedmann static int qeth_prep_flush_pack_buffer(struct qeth_qdio_out_q *queue) 3274664e42acSJulian Wiedmann { 3275664e42acSJulian Wiedmann struct qeth_qdio_out_buffer *buffer; 3276664e42acSJulian Wiedmann 3277664e42acSJulian Wiedmann buffer = queue->bufs[queue->next_buf_to_fill]; 3278664e42acSJulian Wiedmann if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) && 3279664e42acSJulian Wiedmann (buffer->next_element_to_fill > 0)) { 3280664e42acSJulian Wiedmann /* it's a packing buffer */ 3281664e42acSJulian Wiedmann atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); 3282664e42acSJulian Wiedmann queue->next_buf_to_fill = 3283664e42acSJulian Wiedmann (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q; 3284664e42acSJulian Wiedmann return 1; 3285664e42acSJulian Wiedmann } 3286664e42acSJulian Wiedmann return 0; 3287664e42acSJulian Wiedmann } 3288664e42acSJulian Wiedmann 32894a71df50SFrank Blaschka /* 32904a71df50SFrank Blaschka * Switched to packing state if the number of used buffers on a queue 32914a71df50SFrank Blaschka * reaches a certain limit. 32924a71df50SFrank Blaschka */ 32934a71df50SFrank Blaschka static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue) 32944a71df50SFrank Blaschka { 32954a71df50SFrank Blaschka if (!queue->do_pack) { 32964a71df50SFrank Blaschka if (atomic_read(&queue->used_buffers) 32974a71df50SFrank Blaschka >= QETH_HIGH_WATERMARK_PACK){ 32984a71df50SFrank Blaschka /* switch non-PACKING -> PACKING */ 3299847a50fdSCarsten Otte QETH_CARD_TEXT(queue->card, 6, "np->pack"); 33004a71df50SFrank Blaschka if (queue->card->options.performance_stats) 33014a71df50SFrank Blaschka queue->card->perf_stats.sc_dp_p++; 33024a71df50SFrank Blaschka queue->do_pack = 1; 33034a71df50SFrank Blaschka } 33044a71df50SFrank Blaschka } 33054a71df50SFrank Blaschka } 33064a71df50SFrank Blaschka 33074a71df50SFrank Blaschka /* 33084a71df50SFrank Blaschka * Switches from packing to non-packing mode. If there is a packing 33094a71df50SFrank Blaschka * buffer on the queue this buffer will be prepared to be flushed. 33104a71df50SFrank Blaschka * In that case 1 is returned to inform the caller. If no buffer 33114a71df50SFrank Blaschka * has to be flushed, zero is returned. 33124a71df50SFrank Blaschka */ 33134a71df50SFrank Blaschka static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue) 33144a71df50SFrank Blaschka { 33154a71df50SFrank Blaschka if (queue->do_pack) { 33164a71df50SFrank Blaschka if (atomic_read(&queue->used_buffers) 33174a71df50SFrank Blaschka <= QETH_LOW_WATERMARK_PACK) { 33184a71df50SFrank Blaschka /* switch PACKING -> non-PACKING */ 3319847a50fdSCarsten Otte QETH_CARD_TEXT(queue->card, 6, "pack->np"); 33204a71df50SFrank Blaschka if (queue->card->options.performance_stats) 33214a71df50SFrank Blaschka queue->card->perf_stats.sc_p_dp++; 33224a71df50SFrank Blaschka queue->do_pack = 0; 3323664e42acSJulian Wiedmann return qeth_prep_flush_pack_buffer(queue); 33244a71df50SFrank Blaschka } 33254a71df50SFrank Blaschka } 33264a71df50SFrank Blaschka return 0; 33274a71df50SFrank Blaschka } 33284a71df50SFrank Blaschka 3329779e6e1cSJan Glauber static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index, 3330779e6e1cSJan Glauber int count) 33314a71df50SFrank Blaschka { 33324a71df50SFrank Blaschka struct qeth_qdio_out_buffer *buf; 33334a71df50SFrank Blaschka int rc; 33344a71df50SFrank Blaschka int i; 33354a71df50SFrank Blaschka unsigned int qdio_flags; 33364a71df50SFrank Blaschka 33374a71df50SFrank Blaschka for (i = index; i < index + count; ++i) { 33380da9581dSEinar Lueck int bidx = i % QDIO_MAX_BUFFERS_PER_Q; 33390da9581dSEinar Lueck buf = queue->bufs[bidx]; 33403ec90878SJan Glauber buf->buffer->element[buf->next_element_to_fill - 1].eflags |= 33413ec90878SJan Glauber SBAL_EFLAGS_LAST_ENTRY; 33424a71df50SFrank Blaschka 33430da9581dSEinar Lueck if (queue->bufstates) 33440da9581dSEinar Lueck queue->bufstates[bidx].user = buf; 33450da9581dSEinar Lueck 33464a71df50SFrank Blaschka if (queue->card->info.type == QETH_CARD_TYPE_IQD) 33474a71df50SFrank Blaschka continue; 33484a71df50SFrank Blaschka 33494a71df50SFrank Blaschka if (!queue->do_pack) { 33504a71df50SFrank Blaschka if ((atomic_read(&queue->used_buffers) >= 33514a71df50SFrank Blaschka (QETH_HIGH_WATERMARK_PACK - 33524a71df50SFrank Blaschka QETH_WATERMARK_PACK_FUZZ)) && 33534a71df50SFrank Blaschka !atomic_read(&queue->set_pci_flags_count)) { 33544a71df50SFrank Blaschka /* it's likely that we'll go to packing 33554a71df50SFrank Blaschka * mode soon */ 33564a71df50SFrank Blaschka atomic_inc(&queue->set_pci_flags_count); 33573ec90878SJan Glauber buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ; 33584a71df50SFrank Blaschka } 33594a71df50SFrank Blaschka } else { 33604a71df50SFrank Blaschka if (!atomic_read(&queue->set_pci_flags_count)) { 33614a71df50SFrank Blaschka /* 33624a71df50SFrank Blaschka * there's no outstanding PCI any more, so we 33634a71df50SFrank Blaschka * have to request a PCI to be sure the the PCI 33644a71df50SFrank Blaschka * will wake at some time in the future then we 33654a71df50SFrank Blaschka * can flush packed buffers that might still be 33664a71df50SFrank Blaschka * hanging around, which can happen if no 33674a71df50SFrank Blaschka * further send was requested by the stack 33684a71df50SFrank Blaschka */ 33694a71df50SFrank Blaschka atomic_inc(&queue->set_pci_flags_count); 33703ec90878SJan Glauber buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ; 33714a71df50SFrank Blaschka } 33724a71df50SFrank Blaschka } 33734a71df50SFrank Blaschka } 33744a71df50SFrank Blaschka 33753e66bab3SFlorian Westphal netif_trans_update(queue->card->dev); 33764a71df50SFrank Blaschka if (queue->card->options.performance_stats) { 33774a71df50SFrank Blaschka queue->card->perf_stats.outbound_do_qdio_cnt++; 33784a71df50SFrank Blaschka queue->card->perf_stats.outbound_do_qdio_start_time = 33794a71df50SFrank Blaschka qeth_get_micros(); 33804a71df50SFrank Blaschka } 33814a71df50SFrank Blaschka qdio_flags = QDIO_FLAG_SYNC_OUTPUT; 33824a71df50SFrank Blaschka if (atomic_read(&queue->set_pci_flags_count)) 33834a71df50SFrank Blaschka qdio_flags |= QDIO_FLAG_PCI_OUT; 3384a702349aSJulian Wiedmann atomic_add(count, &queue->used_buffers); 3385a702349aSJulian Wiedmann 33864a71df50SFrank Blaschka rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags, 3387779e6e1cSJan Glauber queue->queue_no, index, count); 33884a71df50SFrank Blaschka if (queue->card->options.performance_stats) 33894a71df50SFrank Blaschka queue->card->perf_stats.outbound_do_qdio_time += 33904a71df50SFrank Blaschka qeth_get_micros() - 33914a71df50SFrank Blaschka queue->card->perf_stats.outbound_do_qdio_start_time; 33924a71df50SFrank Blaschka if (rc) { 3393d303b6fdSJan Glauber queue->card->stats.tx_errors += count; 3394d303b6fdSJan Glauber /* ignore temporary SIGA errors without busy condition */ 33951549d13fSJan Glauber if (rc == -ENOBUFS) 3396d303b6fdSJan Glauber return; 3397847a50fdSCarsten Otte QETH_CARD_TEXT(queue->card, 2, "flushbuf"); 33980da9581dSEinar Lueck QETH_CARD_TEXT_(queue->card, 2, " q%d", queue->queue_no); 33990da9581dSEinar Lueck QETH_CARD_TEXT_(queue->card, 2, " idx%d", index); 34000da9581dSEinar Lueck QETH_CARD_TEXT_(queue->card, 2, " c%d", count); 3401847a50fdSCarsten Otte QETH_CARD_TEXT_(queue->card, 2, " err%d", rc); 3402d303b6fdSJan Glauber 34034a71df50SFrank Blaschka /* this must not happen under normal circumstances. if it 34044a71df50SFrank Blaschka * happens something is really wrong -> recover */ 34054a71df50SFrank Blaschka qeth_schedule_recovery(queue->card); 34064a71df50SFrank Blaschka return; 34074a71df50SFrank Blaschka } 34084a71df50SFrank Blaschka if (queue->card->options.performance_stats) 34094a71df50SFrank Blaschka queue->card->perf_stats.bufs_sent += count; 34104a71df50SFrank Blaschka } 34114a71df50SFrank Blaschka 34124a71df50SFrank Blaschka static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue) 34134a71df50SFrank Blaschka { 34144a71df50SFrank Blaschka int index; 34154a71df50SFrank Blaschka int flush_cnt = 0; 34164a71df50SFrank Blaschka int q_was_packing = 0; 34174a71df50SFrank Blaschka 34184a71df50SFrank Blaschka /* 34194a71df50SFrank Blaschka * check if weed have to switch to non-packing mode or if 34204a71df50SFrank Blaschka * we have to get a pci flag out on the queue 34214a71df50SFrank Blaschka */ 34224a71df50SFrank Blaschka if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) || 34234a71df50SFrank Blaschka !atomic_read(&queue->set_pci_flags_count)) { 34244a71df50SFrank Blaschka if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) == 34254a71df50SFrank Blaschka QETH_OUT_Q_UNLOCKED) { 34264a71df50SFrank Blaschka /* 34274a71df50SFrank Blaschka * If we get in here, there was no action in 34284a71df50SFrank Blaschka * do_send_packet. So, we check if there is a 34294a71df50SFrank Blaschka * packing buffer to be flushed here. 34304a71df50SFrank Blaschka */ 34314a71df50SFrank Blaschka netif_stop_queue(queue->card->dev); 34324a71df50SFrank Blaschka index = queue->next_buf_to_fill; 34334a71df50SFrank Blaschka q_was_packing = queue->do_pack; 34344a71df50SFrank Blaschka /* queue->do_pack may change */ 34354a71df50SFrank Blaschka barrier(); 34364a71df50SFrank Blaschka flush_cnt += qeth_switch_to_nonpacking_if_needed(queue); 34374a71df50SFrank Blaschka if (!flush_cnt && 34384a71df50SFrank Blaschka !atomic_read(&queue->set_pci_flags_count)) 3439664e42acSJulian Wiedmann flush_cnt += qeth_prep_flush_pack_buffer(queue); 34404a71df50SFrank Blaschka if (queue->card->options.performance_stats && 34414a71df50SFrank Blaschka q_was_packing) 34424a71df50SFrank Blaschka queue->card->perf_stats.bufs_sent_pack += 34434a71df50SFrank Blaschka flush_cnt; 34444a71df50SFrank Blaschka if (flush_cnt) 3445779e6e1cSJan Glauber qeth_flush_buffers(queue, index, flush_cnt); 34464a71df50SFrank Blaschka atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); 34474a71df50SFrank Blaschka } 34484a71df50SFrank Blaschka } 34494a71df50SFrank Blaschka } 34504a71df50SFrank Blaschka 34517bcd64ebSJulian Wiedmann static void qeth_qdio_start_poll(struct ccw_device *ccwdev, int queue, 3452a1c3ed4cSFrank Blaschka unsigned long card_ptr) 3453a1c3ed4cSFrank Blaschka { 3454a1c3ed4cSFrank Blaschka struct qeth_card *card = (struct qeth_card *)card_ptr; 3455a1c3ed4cSFrank Blaschka 3456d3d1b205SJulian Wiedmann if (card->dev->flags & IFF_UP) 3457a1c3ed4cSFrank Blaschka napi_schedule(&card->napi); 3458a1c3ed4cSFrank Blaschka } 3459a1c3ed4cSFrank Blaschka 34600da9581dSEinar Lueck int qeth_configure_cq(struct qeth_card *card, enum qeth_cq cq) 34610da9581dSEinar Lueck { 34620da9581dSEinar Lueck int rc; 34630da9581dSEinar Lueck 34640da9581dSEinar Lueck if (card->options.cq == QETH_CQ_NOTAVAILABLE) { 34650da9581dSEinar Lueck rc = -1; 34660da9581dSEinar Lueck goto out; 34670da9581dSEinar Lueck } else { 34680da9581dSEinar Lueck if (card->options.cq == cq) { 34690da9581dSEinar Lueck rc = 0; 34700da9581dSEinar Lueck goto out; 34710da9581dSEinar Lueck } 34720da9581dSEinar Lueck 34730da9581dSEinar Lueck if (card->state != CARD_STATE_DOWN && 34740da9581dSEinar Lueck card->state != CARD_STATE_RECOVER) { 34750da9581dSEinar Lueck rc = -1; 34760da9581dSEinar Lueck goto out; 34770da9581dSEinar Lueck } 34780da9581dSEinar Lueck 34790da9581dSEinar Lueck qeth_free_qdio_buffers(card); 34800da9581dSEinar Lueck card->options.cq = cq; 34810da9581dSEinar Lueck rc = 0; 34820da9581dSEinar Lueck } 34830da9581dSEinar Lueck out: 34840da9581dSEinar Lueck return rc; 34850da9581dSEinar Lueck 34860da9581dSEinar Lueck } 34870da9581dSEinar Lueck EXPORT_SYMBOL_GPL(qeth_configure_cq); 34880da9581dSEinar Lueck 34893b346c18SJulian Wiedmann static void qeth_qdio_cq_handler(struct qeth_card *card, unsigned int qdio_err, 34903b346c18SJulian Wiedmann unsigned int queue, int first_element, 34913b346c18SJulian Wiedmann int count) 34923b346c18SJulian Wiedmann { 34930da9581dSEinar Lueck struct qeth_qdio_q *cq = card->qdio.c_q; 34940da9581dSEinar Lueck int i; 34950da9581dSEinar Lueck int rc; 34960da9581dSEinar Lueck 34970da9581dSEinar Lueck if (!qeth_is_cq(card, queue)) 34980da9581dSEinar Lueck goto out; 34990da9581dSEinar Lueck 35000da9581dSEinar Lueck QETH_CARD_TEXT_(card, 5, "qcqhe%d", first_element); 35010da9581dSEinar Lueck QETH_CARD_TEXT_(card, 5, "qcqhc%d", count); 35020da9581dSEinar Lueck QETH_CARD_TEXT_(card, 5, "qcqherr%d", qdio_err); 35030da9581dSEinar Lueck 35040da9581dSEinar Lueck if (qdio_err) { 35050da9581dSEinar Lueck netif_stop_queue(card->dev); 35060da9581dSEinar Lueck qeth_schedule_recovery(card); 35070da9581dSEinar Lueck goto out; 35080da9581dSEinar Lueck } 35090da9581dSEinar Lueck 35100da9581dSEinar Lueck if (card->options.performance_stats) { 35110da9581dSEinar Lueck card->perf_stats.cq_cnt++; 35120da9581dSEinar Lueck card->perf_stats.cq_start_time = qeth_get_micros(); 35130da9581dSEinar Lueck } 35140da9581dSEinar Lueck 35150da9581dSEinar Lueck for (i = first_element; i < first_element + count; ++i) { 35160da9581dSEinar Lueck int bidx = i % QDIO_MAX_BUFFERS_PER_Q; 35176d284bdeSSebastian Ott struct qdio_buffer *buffer = cq->qdio_bufs[bidx]; 35183b346c18SJulian Wiedmann int e = 0; 35190da9581dSEinar Lueck 3520903e4853SUrsula Braun while ((e < QDIO_MAX_ELEMENTS_PER_BUFFER) && 3521903e4853SUrsula Braun buffer->element[e].addr) { 35220da9581dSEinar Lueck unsigned long phys_aob_addr; 35230da9581dSEinar Lueck 35240da9581dSEinar Lueck phys_aob_addr = (unsigned long) buffer->element[e].addr; 35250da9581dSEinar Lueck qeth_qdio_handle_aob(card, phys_aob_addr); 35260da9581dSEinar Lueck ++e; 35270da9581dSEinar Lueck } 35283b346c18SJulian Wiedmann qeth_scrub_qdio_buffer(buffer, QDIO_MAX_ELEMENTS_PER_BUFFER); 35290da9581dSEinar Lueck } 35300da9581dSEinar Lueck rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, queue, 35310da9581dSEinar Lueck card->qdio.c_q->next_buf_to_init, 35320da9581dSEinar Lueck count); 35330da9581dSEinar Lueck if (rc) { 35340da9581dSEinar Lueck dev_warn(&card->gdev->dev, 35350da9581dSEinar Lueck "QDIO reported an error, rc=%i\n", rc); 35360da9581dSEinar Lueck QETH_CARD_TEXT(card, 2, "qcqherr"); 35370da9581dSEinar Lueck } 35380da9581dSEinar Lueck card->qdio.c_q->next_buf_to_init = (card->qdio.c_q->next_buf_to_init 35390da9581dSEinar Lueck + count) % QDIO_MAX_BUFFERS_PER_Q; 35400da9581dSEinar Lueck 35410da9581dSEinar Lueck if (card->options.performance_stats) { 35420da9581dSEinar Lueck int delta_t = qeth_get_micros(); 35430da9581dSEinar Lueck delta_t -= card->perf_stats.cq_start_time; 35440da9581dSEinar Lueck card->perf_stats.cq_time += delta_t; 35450da9581dSEinar Lueck } 35460da9581dSEinar Lueck out: 35470da9581dSEinar Lueck return; 35480da9581dSEinar Lueck } 35490da9581dSEinar Lueck 35507bcd64ebSJulian Wiedmann static void qeth_qdio_input_handler(struct ccw_device *ccwdev, 35517bcd64ebSJulian Wiedmann unsigned int qdio_err, int queue, 35527bcd64ebSJulian Wiedmann int first_elem, int count, 3553a1c3ed4cSFrank Blaschka unsigned long card_ptr) 3554a1c3ed4cSFrank Blaschka { 3555a1c3ed4cSFrank Blaschka struct qeth_card *card = (struct qeth_card *)card_ptr; 3556a1c3ed4cSFrank Blaschka 35570da9581dSEinar Lueck QETH_CARD_TEXT_(card, 2, "qihq%d", queue); 35580da9581dSEinar Lueck QETH_CARD_TEXT_(card, 2, "qiec%d", qdio_err); 35590da9581dSEinar Lueck 35600da9581dSEinar Lueck if (qeth_is_cq(card, queue)) 35610da9581dSEinar Lueck qeth_qdio_cq_handler(card, qdio_err, queue, first_elem, count); 35620da9581dSEinar Lueck else if (qdio_err) 3563a1c3ed4cSFrank Blaschka qeth_schedule_recovery(card); 3564a1c3ed4cSFrank Blaschka } 3565a1c3ed4cSFrank Blaschka 35667bcd64ebSJulian Wiedmann static void qeth_qdio_output_handler(struct ccw_device *ccwdev, 35677bcd64ebSJulian Wiedmann unsigned int qdio_error, int __queue, 35687bcd64ebSJulian Wiedmann int first_element, int count, 35697bcd64ebSJulian Wiedmann unsigned long card_ptr) 35704a71df50SFrank Blaschka { 35714a71df50SFrank Blaschka struct qeth_card *card = (struct qeth_card *) card_ptr; 35724a71df50SFrank Blaschka struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue]; 35734a71df50SFrank Blaschka struct qeth_qdio_out_buffer *buffer; 35744a71df50SFrank Blaschka int i; 35754a71df50SFrank Blaschka 3576847a50fdSCarsten Otte QETH_CARD_TEXT(card, 6, "qdouhdl"); 35771549d13fSJan Glauber if (qdio_error & QDIO_ERROR_FATAL) { 3578847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "achkcond"); 35794a71df50SFrank Blaschka netif_stop_queue(card->dev); 35804a71df50SFrank Blaschka qeth_schedule_recovery(card); 35814a71df50SFrank Blaschka return; 35824a71df50SFrank Blaschka } 35834a71df50SFrank Blaschka if (card->options.performance_stats) { 35844a71df50SFrank Blaschka card->perf_stats.outbound_handler_cnt++; 35854a71df50SFrank Blaschka card->perf_stats.outbound_handler_start_time = 35864a71df50SFrank Blaschka qeth_get_micros(); 35874a71df50SFrank Blaschka } 35884a71df50SFrank Blaschka for (i = first_element; i < (first_element + count); ++i) { 35890da9581dSEinar Lueck int bidx = i % QDIO_MAX_BUFFERS_PER_Q; 35900da9581dSEinar Lueck buffer = queue->bufs[bidx]; 3591b67d801fSUrsula Braun qeth_handle_send_error(card, buffer, qdio_error); 35920da9581dSEinar Lueck 35930da9581dSEinar Lueck if (queue->bufstates && 35940da9581dSEinar Lueck (queue->bufstates[bidx].flags & 35950da9581dSEinar Lueck QDIO_OUTBUF_STATE_FLAG_PENDING) != 0) { 359618af5c17SStefan Raspl WARN_ON_ONCE(card->options.cq != QETH_CQ_ENABLED); 3597b3332930SFrank Blaschka 3598b3332930SFrank Blaschka if (atomic_cmpxchg(&buffer->state, 3599b3332930SFrank Blaschka QETH_QDIO_BUF_PRIMED, 3600b3332930SFrank Blaschka QETH_QDIO_BUF_PENDING) == 3601b3332930SFrank Blaschka QETH_QDIO_BUF_PRIMED) { 3602b3332930SFrank Blaschka qeth_notify_skbs(queue, buffer, 3603b3332930SFrank Blaschka TX_NOTIFY_PENDING); 3604b3332930SFrank Blaschka } 36050da9581dSEinar Lueck QETH_CARD_TEXT_(queue->card, 5, "pel%d", bidx); 3606ce28867fSJulian Wiedmann 3607ce28867fSJulian Wiedmann /* prepare the queue slot for re-use: */ 3608ce28867fSJulian Wiedmann qeth_scrub_qdio_buffer(buffer->buffer, 3609ce28867fSJulian Wiedmann QETH_MAX_BUFFER_ELEMENTS(card)); 3610b3332930SFrank Blaschka if (qeth_init_qdio_out_buf(queue, bidx)) { 3611b3332930SFrank Blaschka QETH_CARD_TEXT(card, 2, "outofbuf"); 36120da9581dSEinar Lueck qeth_schedule_recovery(card); 3613b3332930SFrank Blaschka } 36140da9581dSEinar Lueck } else { 3615b3332930SFrank Blaschka if (card->options.cq == QETH_CQ_ENABLED) { 3616b3332930SFrank Blaschka enum iucv_tx_notify n; 3617b3332930SFrank Blaschka 3618b3332930SFrank Blaschka n = qeth_compute_cq_notification( 3619b3332930SFrank Blaschka buffer->buffer->element[15].sflags, 0); 3620b3332930SFrank Blaschka qeth_notify_skbs(queue, buffer, n); 3621b3332930SFrank Blaschka } 3622b3332930SFrank Blaschka 36233b346c18SJulian Wiedmann qeth_clear_output_buffer(queue, buffer); 36240da9581dSEinar Lueck } 36250da9581dSEinar Lueck qeth_cleanup_handled_pending(queue, bidx, 0); 36264a71df50SFrank Blaschka } 36274a71df50SFrank Blaschka atomic_sub(count, &queue->used_buffers); 36284a71df50SFrank Blaschka /* check if we need to do something on this outbound queue */ 36294a71df50SFrank Blaschka if (card->info.type != QETH_CARD_TYPE_IQD) 36304a71df50SFrank Blaschka qeth_check_outbound_queue(queue); 36314a71df50SFrank Blaschka 36324a71df50SFrank Blaschka netif_wake_queue(queue->card->dev); 36334a71df50SFrank Blaschka if (card->options.performance_stats) 36344a71df50SFrank Blaschka card->perf_stats.outbound_handler_time += qeth_get_micros() - 36354a71df50SFrank Blaschka card->perf_stats.outbound_handler_start_time; 36364a71df50SFrank Blaschka } 36374a71df50SFrank Blaschka 363870deb016SHans Wippel /* We cannot use outbound queue 3 for unicast packets on HiperSockets */ 363970deb016SHans Wippel static inline int qeth_cut_iqd_prio(struct qeth_card *card, int queue_num) 364070deb016SHans Wippel { 364170deb016SHans Wippel if ((card->info.type == QETH_CARD_TYPE_IQD) && (queue_num == 3)) 364270deb016SHans Wippel return 2; 364370deb016SHans Wippel return queue_num; 364470deb016SHans Wippel } 364570deb016SHans Wippel 3646290b8348SStefan Raspl /** 3647290b8348SStefan Raspl * Note: Function assumes that we have 4 outbound queues. 3648290b8348SStefan Raspl */ 36494a71df50SFrank Blaschka int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb, 365086c0cdb9SJulian Wiedmann int ipv) 36514a71df50SFrank Blaschka { 3652d66cb37eSStefan Raspl __be16 *tci; 3653290b8348SStefan Raspl u8 tos; 3654290b8348SStefan Raspl 3655290b8348SStefan Raspl switch (card->qdio.do_prio_queueing) { 3656290b8348SStefan Raspl case QETH_PRIO_Q_ING_TOS: 3657290b8348SStefan Raspl case QETH_PRIO_Q_ING_PREC: 3658290b8348SStefan Raspl switch (ipv) { 3659290b8348SStefan Raspl case 4: 3660290b8348SStefan Raspl tos = ipv4_get_dsfield(ip_hdr(skb)); 3661290b8348SStefan Raspl break; 3662290b8348SStefan Raspl case 6: 3663290b8348SStefan Raspl tos = ipv6_get_dsfield(ipv6_hdr(skb)); 3664290b8348SStefan Raspl break; 36654a71df50SFrank Blaschka default: 36664a71df50SFrank Blaschka return card->qdio.default_out_queue; 36674a71df50SFrank Blaschka } 3668290b8348SStefan Raspl if (card->qdio.do_prio_queueing == QETH_PRIO_Q_ING_PREC) 366970deb016SHans Wippel return qeth_cut_iqd_prio(card, ~tos >> 6 & 3); 3670290b8348SStefan Raspl if (tos & IPTOS_MINCOST) 367170deb016SHans Wippel return qeth_cut_iqd_prio(card, 3); 3672290b8348SStefan Raspl if (tos & IPTOS_RELIABILITY) 3673290b8348SStefan Raspl return 2; 3674290b8348SStefan Raspl if (tos & IPTOS_THROUGHPUT) 3675290b8348SStefan Raspl return 1; 3676290b8348SStefan Raspl if (tos & IPTOS_LOWDELAY) 3677290b8348SStefan Raspl return 0; 3678d66cb37eSStefan Raspl break; 3679d66cb37eSStefan Raspl case QETH_PRIO_Q_ING_SKB: 3680d66cb37eSStefan Raspl if (skb->priority > 5) 3681d66cb37eSStefan Raspl return 0; 368270deb016SHans Wippel return qeth_cut_iqd_prio(card, ~skb->priority >> 1 & 3); 3683d66cb37eSStefan Raspl case QETH_PRIO_Q_ING_VLAN: 3684d66cb37eSStefan Raspl tci = &((struct ethhdr *)skb->data)->h_proto; 36856bee4e26SHans Wippel if (be16_to_cpu(*tci) == ETH_P_8021Q) 36866bee4e26SHans Wippel return qeth_cut_iqd_prio(card, 36876bee4e26SHans Wippel ~be16_to_cpu(*(tci + 1)) >> (VLAN_PRIO_SHIFT + 1) & 3); 3688d66cb37eSStefan Raspl break; 3689290b8348SStefan Raspl default: 3690290b8348SStefan Raspl break; 3691290b8348SStefan Raspl } 3692290b8348SStefan Raspl return card->qdio.default_out_queue; 36934a71df50SFrank Blaschka } 36944a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_get_priority_queue); 36954a71df50SFrank Blaschka 36962863c613SEugene Crosser /** 36972863c613SEugene Crosser * qeth_get_elements_for_frags() - find number of SBALEs for skb frags. 36982863c613SEugene Crosser * @skb: SKB address 36992863c613SEugene Crosser * 37002863c613SEugene Crosser * Returns the number of pages, and thus QDIO buffer elements, needed to cover 37012863c613SEugene Crosser * fragmented part of the SKB. Returns zero for linear SKB. 37022863c613SEugene Crosser */ 3703356156b6SJulian Wiedmann static int qeth_get_elements_for_frags(struct sk_buff *skb) 3704271648b4SFrank Blaschka { 37052863c613SEugene Crosser int cnt, elements = 0; 3706271648b4SFrank Blaschka 3707271648b4SFrank Blaschka for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) { 37082863c613SEugene Crosser struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[cnt]; 37092863c613SEugene Crosser 37102863c613SEugene Crosser elements += qeth_get_elements_for_range( 37112863c613SEugene Crosser (addr_t)skb_frag_address(frag), 37122863c613SEugene Crosser (addr_t)skb_frag_address(frag) + skb_frag_size(frag)); 3713271648b4SFrank Blaschka } 3714271648b4SFrank Blaschka return elements; 3715271648b4SFrank Blaschka } 3716271648b4SFrank Blaschka 371740e6a225SJulian Wiedmann /** 371840e6a225SJulian Wiedmann * qeth_count_elements() - Counts the number of QDIO buffer elements needed 371940e6a225SJulian Wiedmann * to transmit an skb. 372040e6a225SJulian Wiedmann * @skb: the skb to operate on. 372140e6a225SJulian Wiedmann * @data_offset: skip this part of the skb's linear data 372240e6a225SJulian Wiedmann * 372340e6a225SJulian Wiedmann * Returns the number of pages, and thus QDIO buffer elements, needed to map the 372440e6a225SJulian Wiedmann * skb's data (both its linear part and paged fragments). 372540e6a225SJulian Wiedmann */ 372640e6a225SJulian Wiedmann unsigned int qeth_count_elements(struct sk_buff *skb, unsigned int data_offset) 3727ba86ceeeSJulian Wiedmann { 3728ba86ceeeSJulian Wiedmann unsigned int elements = qeth_get_elements_for_frags(skb); 3729ba86ceeeSJulian Wiedmann addr_t end = (addr_t)skb->data + skb_headlen(skb); 3730ba86ceeeSJulian Wiedmann addr_t start = (addr_t)skb->data + data_offset; 3731ba86ceeeSJulian Wiedmann 3732ba86ceeeSJulian Wiedmann if (start != end) 3733ba86ceeeSJulian Wiedmann elements += qeth_get_elements_for_range(start, end); 3734ba86ceeeSJulian Wiedmann return elements; 3735ba86ceeeSJulian Wiedmann } 373640e6a225SJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_count_elements); 37374a71df50SFrank Blaschka 3738e517b649SJulian Wiedmann #define QETH_HDR_CACHE_OBJ_SIZE (sizeof(struct qeth_hdr_tso) + \ 3739e517b649SJulian Wiedmann MAX_TCP_HEADER) 374055494264SJulian Wiedmann 37410d6f02d3SJulian Wiedmann /** 3742ba86ceeeSJulian Wiedmann * qeth_add_hw_header() - add a HW header to an skb. 3743ba86ceeeSJulian Wiedmann * @skb: skb that the HW header should be added to. 37440d6f02d3SJulian Wiedmann * @hdr: double pointer to a qeth_hdr. When returning with >= 0, 37450d6f02d3SJulian Wiedmann * it contains a valid pointer to a qeth_hdr. 3746a7c2f4a3SJulian Wiedmann * @hdr_len: length of the HW header. 3747a7c2f4a3SJulian Wiedmann * @proto_len: length of protocol headers that need to be in same page as the 3748a7c2f4a3SJulian Wiedmann * HW header. 37490d6f02d3SJulian Wiedmann * 37500d6f02d3SJulian Wiedmann * Returns the pushed length. If the header can't be pushed on 37510d6f02d3SJulian Wiedmann * (eg. because it would cross a page boundary), it is allocated from 37520d6f02d3SJulian Wiedmann * the cache instead and 0 is returned. 3753ba86ceeeSJulian Wiedmann * The number of needed buffer elements is returned in @elements. 37540d6f02d3SJulian Wiedmann * Error to create the hdr is indicated by returning with < 0. 37550d6f02d3SJulian Wiedmann */ 375681ec5439SJulian Wiedmann static int qeth_add_hw_header(struct qeth_card *card, struct sk_buff *skb, 3757a7c2f4a3SJulian Wiedmann struct qeth_hdr **hdr, unsigned int hdr_len, 3758a7c2f4a3SJulian Wiedmann unsigned int proto_len, unsigned int *elements) 37590d6f02d3SJulian Wiedmann { 3760ba86ceeeSJulian Wiedmann const unsigned int max_elements = QETH_MAX_BUFFER_ELEMENTS(card); 3761a7c2f4a3SJulian Wiedmann const unsigned int contiguous = proto_len ? proto_len : 1; 3762ba86ceeeSJulian Wiedmann unsigned int __elements; 3763ba86ceeeSJulian Wiedmann addr_t start, end; 3764ba86ceeeSJulian Wiedmann bool push_ok; 3765ba86ceeeSJulian Wiedmann int rc; 3766ba86ceeeSJulian Wiedmann 3767ba86ceeeSJulian Wiedmann check_layout: 3768a7c2f4a3SJulian Wiedmann start = (addr_t)skb->data - hdr_len; 3769ba86ceeeSJulian Wiedmann end = (addr_t)skb->data; 3770ba86ceeeSJulian Wiedmann 3771a7c2f4a3SJulian Wiedmann if (qeth_get_elements_for_range(start, end + contiguous) == 1) { 3772ba86ceeeSJulian Wiedmann /* Push HW header into same page as first protocol header. */ 3773ba86ceeeSJulian Wiedmann push_ok = true; 3774e517b649SJulian Wiedmann /* ... but TSO always needs a separate element for headers: */ 3775e517b649SJulian Wiedmann if (skb_is_gso(skb)) 3776e517b649SJulian Wiedmann __elements = 1 + qeth_count_elements(skb, proto_len); 3777e517b649SJulian Wiedmann else 3778ba86ceeeSJulian Wiedmann __elements = qeth_count_elements(skb, 0); 3779a7c2f4a3SJulian Wiedmann } else if (!proto_len && qeth_get_elements_for_range(start, end) == 1) { 3780ba86ceeeSJulian Wiedmann /* Push HW header into a new page. */ 3781ba86ceeeSJulian Wiedmann push_ok = true; 3782a7c2f4a3SJulian Wiedmann __elements = 1 + qeth_count_elements(skb, 0); 3783a7c2f4a3SJulian Wiedmann } else { 3784a7c2f4a3SJulian Wiedmann /* Use header cache, copy protocol headers up. */ 3785ba86ceeeSJulian Wiedmann push_ok = false; 3786a7c2f4a3SJulian Wiedmann __elements = 1 + qeth_count_elements(skb, proto_len); 3787ba86ceeeSJulian Wiedmann } 3788ba86ceeeSJulian Wiedmann 3789ba86ceeeSJulian Wiedmann /* Compress skb to fit into one IO buffer: */ 3790ba86ceeeSJulian Wiedmann if (__elements > max_elements) { 3791ba86ceeeSJulian Wiedmann if (!skb_is_nonlinear(skb)) { 3792ba86ceeeSJulian Wiedmann /* Drop it, no easy way of shrinking it further. */ 3793ba86ceeeSJulian Wiedmann QETH_DBF_MESSAGE(2, "Dropped an oversized skb (Max Elements=%u / Actual=%u / Length=%u).\n", 3794ba86ceeeSJulian Wiedmann max_elements, __elements, skb->len); 3795ba86ceeeSJulian Wiedmann return -E2BIG; 3796ba86ceeeSJulian Wiedmann } 3797ba86ceeeSJulian Wiedmann 3798ba86ceeeSJulian Wiedmann rc = skb_linearize(skb); 3799ba86ceeeSJulian Wiedmann if (card->options.performance_stats) { 3800ba86ceeeSJulian Wiedmann if (rc) 3801ba86ceeeSJulian Wiedmann card->perf_stats.tx_linfail++; 3802ba86ceeeSJulian Wiedmann else 3803ba86ceeeSJulian Wiedmann card->perf_stats.tx_lin++; 3804ba86ceeeSJulian Wiedmann } 3805ba86ceeeSJulian Wiedmann if (rc) 3806ba86ceeeSJulian Wiedmann return rc; 3807ba86ceeeSJulian Wiedmann 3808ba86ceeeSJulian Wiedmann /* Linearization changed the layout, re-evaluate: */ 3809ba86ceeeSJulian Wiedmann goto check_layout; 3810ba86ceeeSJulian Wiedmann } 3811ba86ceeeSJulian Wiedmann 3812ba86ceeeSJulian Wiedmann *elements = __elements; 3813ba86ceeeSJulian Wiedmann /* Add the header: */ 3814ba86ceeeSJulian Wiedmann if (push_ok) { 3815a7c2f4a3SJulian Wiedmann *hdr = skb_push(skb, hdr_len); 3816a7c2f4a3SJulian Wiedmann return hdr_len; 38170d6f02d3SJulian Wiedmann } 38180d6f02d3SJulian Wiedmann /* fall back */ 381955494264SJulian Wiedmann if (hdr_len + proto_len > QETH_HDR_CACHE_OBJ_SIZE) 382055494264SJulian Wiedmann return -E2BIG; 38210d6f02d3SJulian Wiedmann *hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC); 38220d6f02d3SJulian Wiedmann if (!*hdr) 38230d6f02d3SJulian Wiedmann return -ENOMEM; 3824a7c2f4a3SJulian Wiedmann /* Copy protocol headers behind HW header: */ 3825a7c2f4a3SJulian Wiedmann skb_copy_from_linear_data(skb, ((char *)*hdr) + hdr_len, proto_len); 38260d6f02d3SJulian Wiedmann return 0; 38270d6f02d3SJulian Wiedmann } 38280d6f02d3SJulian Wiedmann 3829cef6ff22SJulian Wiedmann static void __qeth_fill_buffer(struct sk_buff *skb, 3830384d2ef1SJulian Wiedmann struct qeth_qdio_out_buffer *buf, 3831cc309f83SJulian Wiedmann bool is_first_elem, unsigned int offset) 38324a71df50SFrank Blaschka { 3833384d2ef1SJulian Wiedmann struct qdio_buffer *buffer = buf->buffer; 3834384d2ef1SJulian Wiedmann int element = buf->next_element_to_fill; 3835cc309f83SJulian Wiedmann int length = skb_headlen(skb) - offset; 3836cc309f83SJulian Wiedmann char *data = skb->data + offset; 3837384d2ef1SJulian Wiedmann int length_here, cnt; 38384a71df50SFrank Blaschka 3839cc309f83SJulian Wiedmann /* map linear part into buffer element(s) */ 38404a71df50SFrank Blaschka while (length > 0) { 38414a71df50SFrank Blaschka /* length_here is the remaining amount of data in this page */ 38424a71df50SFrank Blaschka length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE); 38434a71df50SFrank Blaschka if (length < length_here) 38444a71df50SFrank Blaschka length_here = length; 38454a71df50SFrank Blaschka 38464a71df50SFrank Blaschka buffer->element[element].addr = data; 38474a71df50SFrank Blaschka buffer->element[element].length = length_here; 38484a71df50SFrank Blaschka length -= length_here; 3849384d2ef1SJulian Wiedmann if (is_first_elem) { 3850384d2ef1SJulian Wiedmann is_first_elem = false; 38515258830bSJulian Wiedmann if (length || skb_is_nonlinear(skb)) 38525258830bSJulian Wiedmann /* skb needs additional elements */ 38533ec90878SJan Glauber buffer->element[element].eflags = 38543ec90878SJan Glauber SBAL_EFLAGS_FIRST_FRAG; 385551aa165cSFrank Blaschka else 38563ec90878SJan Glauber buffer->element[element].eflags = 0; 38574a71df50SFrank Blaschka } else { 38583ec90878SJan Glauber buffer->element[element].eflags = 38593ec90878SJan Glauber SBAL_EFLAGS_MIDDLE_FRAG; 38604a71df50SFrank Blaschka } 38614a71df50SFrank Blaschka data += length_here; 38624a71df50SFrank Blaschka element++; 38634a71df50SFrank Blaschka } 386451aa165cSFrank Blaschka 3865cc309f83SJulian Wiedmann /* map page frags into buffer element(s) */ 386651aa165cSFrank Blaschka for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) { 3867f8eb4930SJulian Wiedmann skb_frag_t *frag = &skb_shinfo(skb)->frags[cnt]; 3868f8eb4930SJulian Wiedmann 3869f8eb4930SJulian Wiedmann data = skb_frag_address(frag); 3870f8eb4930SJulian Wiedmann length = skb_frag_size(frag); 3871271648b4SFrank Blaschka while (length > 0) { 3872271648b4SFrank Blaschka length_here = PAGE_SIZE - 3873271648b4SFrank Blaschka ((unsigned long) data % PAGE_SIZE); 3874271648b4SFrank Blaschka if (length < length_here) 3875271648b4SFrank Blaschka length_here = length; 3876271648b4SFrank Blaschka 3877271648b4SFrank Blaschka buffer->element[element].addr = data; 3878271648b4SFrank Blaschka buffer->element[element].length = length_here; 3879271648b4SFrank Blaschka buffer->element[element].eflags = 3880271648b4SFrank Blaschka SBAL_EFLAGS_MIDDLE_FRAG; 3881271648b4SFrank Blaschka length -= length_here; 3882271648b4SFrank Blaschka data += length_here; 388351aa165cSFrank Blaschka element++; 388451aa165cSFrank Blaschka } 3885271648b4SFrank Blaschka } 388651aa165cSFrank Blaschka 38873ec90878SJan Glauber if (buffer->element[element - 1].eflags) 38883ec90878SJan Glauber buffer->element[element - 1].eflags = SBAL_EFLAGS_LAST_FRAG; 3889384d2ef1SJulian Wiedmann buf->next_element_to_fill = element; 38904a71df50SFrank Blaschka } 38914a71df50SFrank Blaschka 3892eaf3cc08SJulian Wiedmann /** 3893eaf3cc08SJulian Wiedmann * qeth_fill_buffer() - map skb into an output buffer 3894eaf3cc08SJulian Wiedmann * @queue: QDIO queue to submit the buffer on 3895eaf3cc08SJulian Wiedmann * @buf: buffer to transport the skb 3896eaf3cc08SJulian Wiedmann * @skb: skb to map into the buffer 3897eaf3cc08SJulian Wiedmann * @hdr: qeth_hdr for this skb. Either at skb->data, or allocated 3898eaf3cc08SJulian Wiedmann * from qeth_core_header_cache. 3899eaf3cc08SJulian Wiedmann * @offset: when mapping the skb, start at skb->data + offset 3900eaf3cc08SJulian Wiedmann * @hd_len: if > 0, build a dedicated header element of this size 3901eaf3cc08SJulian Wiedmann */ 3902cef6ff22SJulian Wiedmann static int qeth_fill_buffer(struct qeth_qdio_out_q *queue, 3903cc309f83SJulian Wiedmann struct qeth_qdio_out_buffer *buf, 3904cc309f83SJulian Wiedmann struct sk_buff *skb, struct qeth_hdr *hdr, 390513ddacb5SJulian Wiedmann unsigned int offset, unsigned int hd_len) 39064a71df50SFrank Blaschka { 3907eaf3cc08SJulian Wiedmann struct qdio_buffer *buffer = buf->buffer; 3908384d2ef1SJulian Wiedmann bool is_first_elem = true; 39094a71df50SFrank Blaschka 3910dc149e37SJulian Wiedmann __skb_queue_tail(&buf->skb_list, skb); 39114a71df50SFrank Blaschka 3912eaf3cc08SJulian Wiedmann /* build dedicated header element */ 3913eaf3cc08SJulian Wiedmann if (hd_len) { 3914683d718aSFrank Blaschka int element = buf->next_element_to_fill; 3915384d2ef1SJulian Wiedmann is_first_elem = false; 3916384d2ef1SJulian Wiedmann 3917683d718aSFrank Blaschka buffer->element[element].addr = hdr; 3918f1588177SJulian Wiedmann buffer->element[element].length = hd_len; 39193ec90878SJan Glauber buffer->element[element].eflags = SBAL_EFLAGS_FIRST_FRAG; 3920eaf3cc08SJulian Wiedmann /* remember to free cache-allocated qeth_hdr: */ 3921eaf3cc08SJulian Wiedmann buf->is_header[element] = ((void *)hdr != skb->data); 3922683d718aSFrank Blaschka buf->next_element_to_fill++; 3923683d718aSFrank Blaschka } 3924683d718aSFrank Blaschka 3925384d2ef1SJulian Wiedmann __qeth_fill_buffer(skb, buf, is_first_elem, offset); 39264a71df50SFrank Blaschka 39274a71df50SFrank Blaschka if (!queue->do_pack) { 3928847a50fdSCarsten Otte QETH_CARD_TEXT(queue->card, 6, "fillbfnp"); 39294a71df50SFrank Blaschka } else { 3930847a50fdSCarsten Otte QETH_CARD_TEXT(queue->card, 6, "fillbfpa"); 39314a71df50SFrank Blaschka if (queue->card->options.performance_stats) 39324a71df50SFrank Blaschka queue->card->perf_stats.skbs_sent_pack++; 3933f72b4644SJulian Wiedmann 3934f72b4644SJulian Wiedmann /* If the buffer still has free elements, keep using it. */ 3935f72b4644SJulian Wiedmann if (buf->next_element_to_fill < 3936f72b4644SJulian Wiedmann QETH_MAX_BUFFER_ELEMENTS(queue->card)) 3937f72b4644SJulian Wiedmann return 0; 3938f72b4644SJulian Wiedmann } 3939f72b4644SJulian Wiedmann 3940f72b4644SJulian Wiedmann /* flush out the buffer */ 39414a71df50SFrank Blaschka atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); 3942f72b4644SJulian Wiedmann queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) % 3943f72b4644SJulian Wiedmann QDIO_MAX_BUFFERS_PER_Q; 3944f72b4644SJulian Wiedmann return 1; 39454a71df50SFrank Blaschka } 39464a71df50SFrank Blaschka 394781ec5439SJulian Wiedmann static int qeth_do_send_packet_fast(struct qeth_qdio_out_q *queue, 394881ec5439SJulian Wiedmann struct sk_buff *skb, struct qeth_hdr *hdr, 394981ec5439SJulian Wiedmann unsigned int offset, unsigned int hd_len) 39504a71df50SFrank Blaschka { 39517c2e9ba3SJulian Wiedmann int index = queue->next_buf_to_fill; 39527c2e9ba3SJulian Wiedmann struct qeth_qdio_out_buffer *buffer = queue->bufs[index]; 39534a71df50SFrank Blaschka 39544a71df50SFrank Blaschka /* 39554a71df50SFrank Blaschka * check if buffer is empty to make sure that we do not 'overtake' 39564a71df50SFrank Blaschka * ourselves and try to fill a buffer that is already primed 39574a71df50SFrank Blaschka */ 39584a71df50SFrank Blaschka if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) 39597c2e9ba3SJulian Wiedmann return -EBUSY; 3960683d718aSFrank Blaschka qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len); 3961779e6e1cSJan Glauber qeth_flush_buffers(queue, index, 1); 39624a71df50SFrank Blaschka return 0; 39634a71df50SFrank Blaschka } 39644a71df50SFrank Blaschka 39654a71df50SFrank Blaschka int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, 39664a71df50SFrank Blaschka struct sk_buff *skb, struct qeth_hdr *hdr, 39679c3bfda9SJulian Wiedmann unsigned int offset, unsigned int hd_len, 39689c3bfda9SJulian Wiedmann int elements_needed) 39694a71df50SFrank Blaschka { 39704a71df50SFrank Blaschka struct qeth_qdio_out_buffer *buffer; 39714a71df50SFrank Blaschka int start_index; 39724a71df50SFrank Blaschka int flush_count = 0; 39734a71df50SFrank Blaschka int do_pack = 0; 39744a71df50SFrank Blaschka int tmp; 39754a71df50SFrank Blaschka int rc = 0; 39764a71df50SFrank Blaschka 39774a71df50SFrank Blaschka /* spin until we get the queue ... */ 39784a71df50SFrank Blaschka while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED, 39794a71df50SFrank Blaschka QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED); 39804a71df50SFrank Blaschka start_index = queue->next_buf_to_fill; 39810da9581dSEinar Lueck buffer = queue->bufs[queue->next_buf_to_fill]; 39824a71df50SFrank Blaschka /* 39834a71df50SFrank Blaschka * check if buffer is empty to make sure that we do not 'overtake' 39844a71df50SFrank Blaschka * ourselves and try to fill a buffer that is already primed 39854a71df50SFrank Blaschka */ 39864a71df50SFrank Blaschka if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) { 39874a71df50SFrank Blaschka atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); 39884a71df50SFrank Blaschka return -EBUSY; 39894a71df50SFrank Blaschka } 39904a71df50SFrank Blaschka /* check if we need to switch packing state of this queue */ 39914a71df50SFrank Blaschka qeth_switch_to_packing_if_needed(queue); 39924a71df50SFrank Blaschka if (queue->do_pack) { 39934a71df50SFrank Blaschka do_pack = 1; 39944a71df50SFrank Blaschka /* does packet fit in current buffer? */ 39954a71df50SFrank Blaschka if ((QETH_MAX_BUFFER_ELEMENTS(card) - 39964a71df50SFrank Blaschka buffer->next_element_to_fill) < elements_needed) { 39974a71df50SFrank Blaschka /* ... no -> set state PRIMED */ 399864ef8957SFrank Blaschka atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); 39994a71df50SFrank Blaschka flush_count++; 40004a71df50SFrank Blaschka queue->next_buf_to_fill = 40014a71df50SFrank Blaschka (queue->next_buf_to_fill + 1) % 40024a71df50SFrank Blaschka QDIO_MAX_BUFFERS_PER_Q; 40030da9581dSEinar Lueck buffer = queue->bufs[queue->next_buf_to_fill]; 40044a71df50SFrank Blaschka /* we did a step forward, so check buffer state 40054a71df50SFrank Blaschka * again */ 40064a71df50SFrank Blaschka if (atomic_read(&buffer->state) != 40074a71df50SFrank Blaschka QETH_QDIO_BUF_EMPTY) { 4008779e6e1cSJan Glauber qeth_flush_buffers(queue, start_index, 4009779e6e1cSJan Glauber flush_count); 40104a71df50SFrank Blaschka atomic_set(&queue->state, 40114a71df50SFrank Blaschka QETH_OUT_Q_UNLOCKED); 40123cdc8a25SJulian Wiedmann rc = -EBUSY; 40133cdc8a25SJulian Wiedmann goto out; 40144a71df50SFrank Blaschka } 40154a71df50SFrank Blaschka } 40164a71df50SFrank Blaschka } 4017f72b4644SJulian Wiedmann 4018f72b4644SJulian Wiedmann flush_count += qeth_fill_buffer(queue, buffer, skb, hdr, offset, 4019f72b4644SJulian Wiedmann hd_len); 40204a71df50SFrank Blaschka if (flush_count) 4021779e6e1cSJan Glauber qeth_flush_buffers(queue, start_index, flush_count); 40224a71df50SFrank Blaschka else if (!atomic_read(&queue->set_pci_flags_count)) 40234a71df50SFrank Blaschka atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH); 40244a71df50SFrank Blaschka /* 40254a71df50SFrank Blaschka * queue->state will go from LOCKED -> UNLOCKED or from 40264a71df50SFrank Blaschka * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us 40274a71df50SFrank Blaschka * (switch packing state or flush buffer to get another pci flag out). 40284a71df50SFrank Blaschka * In that case we will enter this loop 40294a71df50SFrank Blaschka */ 40304a71df50SFrank Blaschka while (atomic_dec_return(&queue->state)) { 40314a71df50SFrank Blaschka start_index = queue->next_buf_to_fill; 40324a71df50SFrank Blaschka /* check if we can go back to non-packing state */ 40333cdc8a25SJulian Wiedmann tmp = qeth_switch_to_nonpacking_if_needed(queue); 40344a71df50SFrank Blaschka /* 40354a71df50SFrank Blaschka * check if we need to flush a packing buffer to get a pci 40364a71df50SFrank Blaschka * flag out on the queue 40374a71df50SFrank Blaschka */ 40383cdc8a25SJulian Wiedmann if (!tmp && !atomic_read(&queue->set_pci_flags_count)) 40393cdc8a25SJulian Wiedmann tmp = qeth_prep_flush_pack_buffer(queue); 40403cdc8a25SJulian Wiedmann if (tmp) { 40413cdc8a25SJulian Wiedmann qeth_flush_buffers(queue, start_index, tmp); 40423cdc8a25SJulian Wiedmann flush_count += tmp; 40434a71df50SFrank Blaschka } 40443cdc8a25SJulian Wiedmann } 40453cdc8a25SJulian Wiedmann out: 40464a71df50SFrank Blaschka /* at this point the queue is UNLOCKED again */ 40474a71df50SFrank Blaschka if (queue->card->options.performance_stats && do_pack) 40484a71df50SFrank Blaschka queue->card->perf_stats.bufs_sent_pack += flush_count; 40494a71df50SFrank Blaschka 40504a71df50SFrank Blaschka return rc; 40514a71df50SFrank Blaschka } 40524a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_do_send_packet); 40534a71df50SFrank Blaschka 405481ec5439SJulian Wiedmann static void qeth_fill_tso_ext(struct qeth_hdr_tso *hdr, 405581ec5439SJulian Wiedmann unsigned int payload_len, struct sk_buff *skb, 405681ec5439SJulian Wiedmann unsigned int proto_len) 405782bf5c08SJulian Wiedmann { 405882bf5c08SJulian Wiedmann struct qeth_hdr_ext_tso *ext = &hdr->ext; 405982bf5c08SJulian Wiedmann 406082bf5c08SJulian Wiedmann ext->hdr_tot_len = sizeof(*ext); 406182bf5c08SJulian Wiedmann ext->imb_hdr_no = 1; 406282bf5c08SJulian Wiedmann ext->hdr_type = 1; 406382bf5c08SJulian Wiedmann ext->hdr_version = 1; 406482bf5c08SJulian Wiedmann ext->hdr_len = 28; 406582bf5c08SJulian Wiedmann ext->payload_len = payload_len; 406682bf5c08SJulian Wiedmann ext->mss = skb_shinfo(skb)->gso_size; 406782bf5c08SJulian Wiedmann ext->dg_hdr_len = proto_len; 406882bf5c08SJulian Wiedmann } 406982bf5c08SJulian Wiedmann 4070fc69660bSJulian Wiedmann int qeth_xmit(struct qeth_card *card, struct sk_buff *skb, 4071fc69660bSJulian Wiedmann struct qeth_qdio_out_q *queue, int ipv, int cast_type, 4072fc69660bSJulian Wiedmann void (*fill_header)(struct qeth_card *card, struct qeth_hdr *hdr, 4073fc69660bSJulian Wiedmann struct sk_buff *skb, int ipv, int cast_type, 4074fc69660bSJulian Wiedmann unsigned int data_len)) 4075fc69660bSJulian Wiedmann { 407682bf5c08SJulian Wiedmann unsigned int proto_len, hw_hdr_len; 4077fc69660bSJulian Wiedmann unsigned int frame_len = skb->len; 407882bf5c08SJulian Wiedmann bool is_tso = skb_is_gso(skb); 4079fc69660bSJulian Wiedmann unsigned int data_offset = 0; 4080fc69660bSJulian Wiedmann struct qeth_hdr *hdr = NULL; 4081fc69660bSJulian Wiedmann unsigned int hd_len = 0; 4082fc69660bSJulian Wiedmann unsigned int elements; 4083fc69660bSJulian Wiedmann int push_len, rc; 4084fc69660bSJulian Wiedmann bool is_sg; 4085fc69660bSJulian Wiedmann 408682bf5c08SJulian Wiedmann if (is_tso) { 408782bf5c08SJulian Wiedmann hw_hdr_len = sizeof(struct qeth_hdr_tso); 408882bf5c08SJulian Wiedmann proto_len = skb_transport_offset(skb) + tcp_hdrlen(skb); 408982bf5c08SJulian Wiedmann } else { 409082bf5c08SJulian Wiedmann hw_hdr_len = sizeof(struct qeth_hdr); 409181ec5439SJulian Wiedmann proto_len = (IS_IQD(card) && IS_LAYER2(card)) ? ETH_HLEN : 0; 409282bf5c08SJulian Wiedmann } 409382bf5c08SJulian Wiedmann 4094fc69660bSJulian Wiedmann rc = skb_cow_head(skb, hw_hdr_len); 4095fc69660bSJulian Wiedmann if (rc) 4096fc69660bSJulian Wiedmann return rc; 4097fc69660bSJulian Wiedmann 4098fc69660bSJulian Wiedmann push_len = qeth_add_hw_header(card, skb, &hdr, hw_hdr_len, proto_len, 4099fc69660bSJulian Wiedmann &elements); 4100fc69660bSJulian Wiedmann if (push_len < 0) 4101fc69660bSJulian Wiedmann return push_len; 410282bf5c08SJulian Wiedmann if (is_tso || !push_len) { 4103fc69660bSJulian Wiedmann /* HW header needs its own buffer element. */ 4104fc69660bSJulian Wiedmann hd_len = hw_hdr_len + proto_len; 410582bf5c08SJulian Wiedmann data_offset = push_len + proto_len; 4106fc69660bSJulian Wiedmann } 4107e517b649SJulian Wiedmann memset(hdr, 0, hw_hdr_len); 4108fc69660bSJulian Wiedmann fill_header(card, hdr, skb, ipv, cast_type, frame_len); 410982bf5c08SJulian Wiedmann if (is_tso) 411082bf5c08SJulian Wiedmann qeth_fill_tso_ext((struct qeth_hdr_tso *) hdr, 411182bf5c08SJulian Wiedmann frame_len - proto_len, skb, proto_len); 4112fc69660bSJulian Wiedmann 4113fc69660bSJulian Wiedmann is_sg = skb_is_nonlinear(skb); 4114fc69660bSJulian Wiedmann if (IS_IQD(card)) { 4115fc69660bSJulian Wiedmann rc = qeth_do_send_packet_fast(queue, skb, hdr, data_offset, 4116fc69660bSJulian Wiedmann hd_len); 4117fc69660bSJulian Wiedmann } else { 4118fc69660bSJulian Wiedmann /* TODO: drop skb_orphan() once TX completion is fast enough */ 4119fc69660bSJulian Wiedmann skb_orphan(skb); 4120fc69660bSJulian Wiedmann rc = qeth_do_send_packet(card, queue, skb, hdr, data_offset, 4121fc69660bSJulian Wiedmann hd_len, elements); 4122fc69660bSJulian Wiedmann } 4123fc69660bSJulian Wiedmann 4124fc69660bSJulian Wiedmann if (!rc) { 4125fc69660bSJulian Wiedmann if (card->options.performance_stats) { 4126fc69660bSJulian Wiedmann card->perf_stats.buf_elements_sent += elements; 4127fc69660bSJulian Wiedmann if (is_sg) 4128fc69660bSJulian Wiedmann card->perf_stats.sg_skbs_sent++; 412982bf5c08SJulian Wiedmann if (is_tso) { 413082bf5c08SJulian Wiedmann card->perf_stats.large_send_bytes += frame_len; 413182bf5c08SJulian Wiedmann card->perf_stats.large_send_cnt++; 413282bf5c08SJulian Wiedmann } 4133fc69660bSJulian Wiedmann } 4134fc69660bSJulian Wiedmann } else { 4135fc69660bSJulian Wiedmann if (!push_len) 4136fc69660bSJulian Wiedmann kmem_cache_free(qeth_core_header_cache, hdr); 4137fc69660bSJulian Wiedmann if (rc == -EBUSY) 4138fc69660bSJulian Wiedmann /* roll back to ETH header */ 4139fc69660bSJulian Wiedmann skb_pull(skb, push_len); 4140fc69660bSJulian Wiedmann } 4141fc69660bSJulian Wiedmann return rc; 4142fc69660bSJulian Wiedmann } 4143fc69660bSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_xmit); 4144fc69660bSJulian Wiedmann 41454a71df50SFrank Blaschka static int qeth_setadp_promisc_mode_cb(struct qeth_card *card, 41464a71df50SFrank Blaschka struct qeth_reply *reply, unsigned long data) 41474a71df50SFrank Blaschka { 4148686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 41494a71df50SFrank Blaschka struct qeth_ipacmd_setadpparms *setparms; 41504a71df50SFrank Blaschka 4151847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "prmadpcb"); 41524a71df50SFrank Blaschka 41534a71df50SFrank Blaschka setparms = &(cmd->data.setadapterparms); 4154686c97eeSJulian Wiedmann if (qeth_setadpparms_inspect_rc(cmd)) { 41558a593148SThomas Richter QETH_CARD_TEXT_(card, 4, "prmrc%x", cmd->hdr.return_code); 41564a71df50SFrank Blaschka setparms->data.mode = SET_PROMISC_MODE_OFF; 41574a71df50SFrank Blaschka } 41584a71df50SFrank Blaschka card->info.promisc_mode = setparms->data.mode; 41594a71df50SFrank Blaschka return 0; 41604a71df50SFrank Blaschka } 41614a71df50SFrank Blaschka 41624a71df50SFrank Blaschka void qeth_setadp_promisc_mode(struct qeth_card *card) 41634a71df50SFrank Blaschka { 41644a71df50SFrank Blaschka enum qeth_ipa_promisc_modes mode; 41654a71df50SFrank Blaschka struct net_device *dev = card->dev; 41664a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 41674a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 41684a71df50SFrank Blaschka 4169847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "setprom"); 41704a71df50SFrank Blaschka 41714a71df50SFrank Blaschka if (((dev->flags & IFF_PROMISC) && 41724a71df50SFrank Blaschka (card->info.promisc_mode == SET_PROMISC_MODE_ON)) || 41734a71df50SFrank Blaschka (!(dev->flags & IFF_PROMISC) && 41744a71df50SFrank Blaschka (card->info.promisc_mode == SET_PROMISC_MODE_OFF))) 41754a71df50SFrank Blaschka return; 41764a71df50SFrank Blaschka mode = SET_PROMISC_MODE_OFF; 41774a71df50SFrank Blaschka if (dev->flags & IFF_PROMISC) 41784a71df50SFrank Blaschka mode = SET_PROMISC_MODE_ON; 4179847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 4, "mode:%x", mode); 41804a71df50SFrank Blaschka 41814a71df50SFrank Blaschka iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE, 4182ca5b20acSStefan Raspl sizeof(struct qeth_ipacmd_setadpparms_hdr) + 8); 41831aec42bcSThomas Richter if (!iob) 41841aec42bcSThomas Richter return; 4185ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 41864a71df50SFrank Blaschka cmd->data.setadapterparms.data.mode = mode; 41874a71df50SFrank Blaschka qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL); 41884a71df50SFrank Blaschka } 41894a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode); 41904a71df50SFrank Blaschka 41914a71df50SFrank Blaschka struct net_device_stats *qeth_get_stats(struct net_device *dev) 41924a71df50SFrank Blaschka { 41934a71df50SFrank Blaschka struct qeth_card *card; 41944a71df50SFrank Blaschka 4195509e2562SHeiko Carstens card = dev->ml_priv; 41964a71df50SFrank Blaschka 4197847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "getstat"); 41984a71df50SFrank Blaschka 41994a71df50SFrank Blaschka return &card->stats; 42004a71df50SFrank Blaschka } 42014a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_get_stats); 42024a71df50SFrank Blaschka 42034a71df50SFrank Blaschka static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card, 42044a71df50SFrank Blaschka struct qeth_reply *reply, unsigned long data) 42054a71df50SFrank Blaschka { 4206686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 4207b144b99fSJulian Wiedmann struct qeth_ipacmd_setadpparms *adp_cmd; 42084a71df50SFrank Blaschka 4209847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "chgmaccb"); 4210686c97eeSJulian Wiedmann if (qeth_setadpparms_inspect_rc(cmd)) 4211686c97eeSJulian Wiedmann return 0; 42124a71df50SFrank Blaschka 4213b144b99fSJulian Wiedmann adp_cmd = &cmd->data.setadapterparms; 4214b144b99fSJulian Wiedmann if (IS_LAYER2(card) && IS_OSD(card) && !IS_VM_NIC(card) && 4215b144b99fSJulian Wiedmann !(adp_cmd->hdr.flags & QETH_SETADP_FLAGS_VIRTUAL_MAC)) 4216b144b99fSJulian Wiedmann return 0; 4217b144b99fSJulian Wiedmann 4218b144b99fSJulian Wiedmann ether_addr_copy(card->dev->dev_addr, adp_cmd->data.change_addr.addr); 42194a71df50SFrank Blaschka return 0; 42204a71df50SFrank Blaschka } 42214a71df50SFrank Blaschka 42224a71df50SFrank Blaschka int qeth_setadpparms_change_macaddr(struct qeth_card *card) 42234a71df50SFrank Blaschka { 42244a71df50SFrank Blaschka int rc; 42254a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 42264a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 42274a71df50SFrank Blaschka 4228847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "chgmac"); 42294a71df50SFrank Blaschka 42304a71df50SFrank Blaschka iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS, 4231ca5b20acSStefan Raspl sizeof(struct qeth_ipacmd_setadpparms_hdr) + 4232ca5b20acSStefan Raspl sizeof(struct qeth_change_addr)); 42331aec42bcSThomas Richter if (!iob) 42341aec42bcSThomas Richter return -ENOMEM; 4235ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 42364a71df50SFrank Blaschka cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC; 423799f0b85dSJulian Wiedmann cmd->data.setadapterparms.data.change_addr.addr_size = ETH_ALEN; 423899f0b85dSJulian Wiedmann ether_addr_copy(cmd->data.setadapterparms.data.change_addr.addr, 423999f0b85dSJulian Wiedmann card->dev->dev_addr); 42404a71df50SFrank Blaschka rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb, 42414a71df50SFrank Blaschka NULL); 42424a71df50SFrank Blaschka return rc; 42434a71df50SFrank Blaschka } 42444a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr); 42454a71df50SFrank Blaschka 4246d64ecc22SEinar Lueck static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card, 4247d64ecc22SEinar Lueck struct qeth_reply *reply, unsigned long data) 4248d64ecc22SEinar Lueck { 4249686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 4250d64ecc22SEinar Lueck struct qeth_set_access_ctrl *access_ctrl_req; 42510f54761dSStefan Raspl int fallback = *(int *)reply->param; 4252d64ecc22SEinar Lueck 4253847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "setaccb"); 4254686c97eeSJulian Wiedmann if (cmd->hdr.return_code) 4255686c97eeSJulian Wiedmann return 0; 4256686c97eeSJulian Wiedmann qeth_setadpparms_inspect_rc(cmd); 4257d64ecc22SEinar Lueck 4258d64ecc22SEinar Lueck access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl; 4259d64ecc22SEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "setaccb"); 4260d64ecc22SEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name); 4261d64ecc22SEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "rc=%d", 4262d64ecc22SEinar Lueck cmd->data.setadapterparms.hdr.return_code); 42630f54761dSStefan Raspl if (cmd->data.setadapterparms.hdr.return_code != 42640f54761dSStefan Raspl SET_ACCESS_CTRL_RC_SUCCESS) 4265e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%#x) on device %x: %#x\n", 4266e19e5be8SJulian Wiedmann access_ctrl_req->subcmd_code, CARD_DEVID(card), 42670f54761dSStefan Raspl cmd->data.setadapterparms.hdr.return_code); 4268d64ecc22SEinar Lueck switch (cmd->data.setadapterparms.hdr.return_code) { 4269d64ecc22SEinar Lueck case SET_ACCESS_CTRL_RC_SUCCESS: 4270d64ecc22SEinar Lueck if (card->options.isolation == ISOLATION_MODE_NONE) { 4271d64ecc22SEinar Lueck dev_info(&card->gdev->dev, 4272d64ecc22SEinar Lueck "QDIO data connection isolation is deactivated\n"); 4273d64ecc22SEinar Lueck } else { 4274d64ecc22SEinar Lueck dev_info(&card->gdev->dev, 4275d64ecc22SEinar Lueck "QDIO data connection isolation is activated\n"); 4276d64ecc22SEinar Lueck } 4277d64ecc22SEinar Lueck break; 42780f54761dSStefan Raspl case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED: 4279e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "QDIO data connection isolation on device %x already deactivated\n", 4280e19e5be8SJulian Wiedmann CARD_DEVID(card)); 42810f54761dSStefan Raspl if (fallback) 42820f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 42830f54761dSStefan Raspl break; 42840f54761dSStefan Raspl case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED: 4285e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "QDIO data connection isolation on device %x already activated\n", 4286e19e5be8SJulian Wiedmann CARD_DEVID(card)); 42870f54761dSStefan Raspl if (fallback) 42880f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 42890f54761dSStefan Raspl break; 4290d64ecc22SEinar Lueck case SET_ACCESS_CTRL_RC_NOT_SUPPORTED: 4291d64ecc22SEinar Lueck dev_err(&card->gdev->dev, "Adapter does not " 4292d64ecc22SEinar Lueck "support QDIO data connection isolation\n"); 4293d64ecc22SEinar Lueck break; 4294d64ecc22SEinar Lueck case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER: 4295d64ecc22SEinar Lueck dev_err(&card->gdev->dev, 4296d64ecc22SEinar Lueck "Adapter is dedicated. " 4297d64ecc22SEinar Lueck "QDIO data connection isolation not supported\n"); 42980f54761dSStefan Raspl if (fallback) 42990f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 4300d64ecc22SEinar Lueck break; 4301d64ecc22SEinar Lueck case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF: 4302d64ecc22SEinar Lueck dev_err(&card->gdev->dev, 4303d64ecc22SEinar Lueck "TSO does not permit QDIO data connection isolation\n"); 43040f54761dSStefan Raspl if (fallback) 43050f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 4306d64ecc22SEinar Lueck break; 43070f54761dSStefan Raspl case SET_ACCESS_CTRL_RC_REFLREL_UNSUPPORTED: 43080f54761dSStefan Raspl dev_err(&card->gdev->dev, "The adjacent switch port does not " 43090f54761dSStefan Raspl "support reflective relay mode\n"); 43100f54761dSStefan Raspl if (fallback) 43110f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 43120f54761dSStefan Raspl break; 43130f54761dSStefan Raspl case SET_ACCESS_CTRL_RC_REFLREL_FAILED: 43140f54761dSStefan Raspl dev_err(&card->gdev->dev, "The reflective relay mode cannot be " 43150f54761dSStefan Raspl "enabled at the adjacent switch port"); 43160f54761dSStefan Raspl if (fallback) 43170f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 43180f54761dSStefan Raspl break; 43190f54761dSStefan Raspl case SET_ACCESS_CTRL_RC_REFLREL_DEACT_FAILED: 43200f54761dSStefan Raspl dev_warn(&card->gdev->dev, "Turning off reflective relay mode " 43210f54761dSStefan Raspl "at the adjacent switch failed\n"); 43220f54761dSStefan Raspl break; 4323d64ecc22SEinar Lueck default: 4324d64ecc22SEinar Lueck /* this should never happen */ 43250f54761dSStefan Raspl if (fallback) 43260f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 4327d64ecc22SEinar Lueck break; 4328d64ecc22SEinar Lueck } 4329bbb822a8SUrsula Braun return 0; 4330d64ecc22SEinar Lueck } 4331d64ecc22SEinar Lueck 4332d64ecc22SEinar Lueck static int qeth_setadpparms_set_access_ctrl(struct qeth_card *card, 43330f54761dSStefan Raspl enum qeth_ipa_isolation_modes isolation, int fallback) 4334d64ecc22SEinar Lueck { 4335d64ecc22SEinar Lueck int rc; 4336d64ecc22SEinar Lueck struct qeth_cmd_buffer *iob; 4337d64ecc22SEinar Lueck struct qeth_ipa_cmd *cmd; 4338d64ecc22SEinar Lueck struct qeth_set_access_ctrl *access_ctrl_req; 4339d64ecc22SEinar Lueck 4340847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "setacctl"); 4341d64ecc22SEinar Lueck 4342d64ecc22SEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "setacctl"); 4343d64ecc22SEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name); 4344d64ecc22SEinar Lueck 4345d64ecc22SEinar Lueck iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_ACCESS_CONTROL, 4346d64ecc22SEinar Lueck sizeof(struct qeth_ipacmd_setadpparms_hdr) + 4347d64ecc22SEinar Lueck sizeof(struct qeth_set_access_ctrl)); 43481aec42bcSThomas Richter if (!iob) 43491aec42bcSThomas Richter return -ENOMEM; 4350ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 4351d64ecc22SEinar Lueck access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl; 4352d64ecc22SEinar Lueck access_ctrl_req->subcmd_code = isolation; 4353d64ecc22SEinar Lueck 4354d64ecc22SEinar Lueck rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_set_access_ctrl_cb, 43550f54761dSStefan Raspl &fallback); 4356d64ecc22SEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "rc=%d", rc); 4357d64ecc22SEinar Lueck return rc; 4358d64ecc22SEinar Lueck } 4359d64ecc22SEinar Lueck 43600f54761dSStefan Raspl int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback) 4361d64ecc22SEinar Lueck { 4362d64ecc22SEinar Lueck int rc = 0; 4363d64ecc22SEinar Lueck 4364847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "setactlo"); 4365d64ecc22SEinar Lueck 43665113fec0SUrsula Braun if ((card->info.type == QETH_CARD_TYPE_OSD || 43675113fec0SUrsula Braun card->info.type == QETH_CARD_TYPE_OSX) && 4368d64ecc22SEinar Lueck qeth_adp_supported(card, IPA_SETADP_SET_ACCESS_CONTROL)) { 4369d64ecc22SEinar Lueck rc = qeth_setadpparms_set_access_ctrl(card, 43700f54761dSStefan Raspl card->options.isolation, fallback); 4371d64ecc22SEinar Lueck if (rc) { 4372e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(3, "IPA(SET_ACCESS_CTRL(%d) on device %x: sent failed\n", 4373e19e5be8SJulian Wiedmann rc, CARD_DEVID(card)); 43740f54761dSStefan Raspl rc = -EOPNOTSUPP; 4375d64ecc22SEinar Lueck } 4376d64ecc22SEinar Lueck } else if (card->options.isolation != ISOLATION_MODE_NONE) { 4377d64ecc22SEinar Lueck card->options.isolation = ISOLATION_MODE_NONE; 4378d64ecc22SEinar Lueck 4379d64ecc22SEinar Lueck dev_err(&card->gdev->dev, "Adapter does not " 4380d64ecc22SEinar Lueck "support QDIO data connection isolation\n"); 4381d64ecc22SEinar Lueck rc = -EOPNOTSUPP; 4382d64ecc22SEinar Lueck } 4383d64ecc22SEinar Lueck return rc; 4384d64ecc22SEinar Lueck } 4385d64ecc22SEinar Lueck EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online); 4386d64ecc22SEinar Lueck 43874a71df50SFrank Blaschka void qeth_tx_timeout(struct net_device *dev) 43884a71df50SFrank Blaschka { 43894a71df50SFrank Blaschka struct qeth_card *card; 43904a71df50SFrank Blaschka 4391509e2562SHeiko Carstens card = dev->ml_priv; 4392847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "txtimeo"); 43934a71df50SFrank Blaschka card->stats.tx_errors++; 43944a71df50SFrank Blaschka qeth_schedule_recovery(card); 43954a71df50SFrank Blaschka } 43964a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_tx_timeout); 43974a71df50SFrank Blaschka 4398942d6984SJulian Wiedmann static int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum) 43994a71df50SFrank Blaschka { 4400509e2562SHeiko Carstens struct qeth_card *card = dev->ml_priv; 44014a71df50SFrank Blaschka int rc = 0; 44024a71df50SFrank Blaschka 44034a71df50SFrank Blaschka switch (regnum) { 44044a71df50SFrank Blaschka case MII_BMCR: /* Basic mode control register */ 44054a71df50SFrank Blaschka rc = BMCR_FULLDPLX; 44064a71df50SFrank Blaschka if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) && 44074a71df50SFrank Blaschka (card->info.link_type != QETH_LINK_TYPE_OSN) && 440854e049c2SJulian Wiedmann (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH) && 440954e049c2SJulian Wiedmann (card->info.link_type != QETH_LINK_TYPE_25GBIT_ETH)) 44104a71df50SFrank Blaschka rc |= BMCR_SPEED100; 44114a71df50SFrank Blaschka break; 44124a71df50SFrank Blaschka case MII_BMSR: /* Basic mode status register */ 44134a71df50SFrank Blaschka rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS | 44144a71df50SFrank Blaschka BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL | 44154a71df50SFrank Blaschka BMSR_100BASE4; 44164a71df50SFrank Blaschka break; 44174a71df50SFrank Blaschka case MII_PHYSID1: /* PHYS ID 1 */ 44184a71df50SFrank Blaschka rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) | 44194a71df50SFrank Blaschka dev->dev_addr[2]; 44204a71df50SFrank Blaschka rc = (rc >> 5) & 0xFFFF; 44214a71df50SFrank Blaschka break; 44224a71df50SFrank Blaschka case MII_PHYSID2: /* PHYS ID 2 */ 44234a71df50SFrank Blaschka rc = (dev->dev_addr[2] << 10) & 0xFFFF; 44244a71df50SFrank Blaschka break; 44254a71df50SFrank Blaschka case MII_ADVERTISE: /* Advertisement control reg */ 44264a71df50SFrank Blaschka rc = ADVERTISE_ALL; 44274a71df50SFrank Blaschka break; 44284a71df50SFrank Blaschka case MII_LPA: /* Link partner ability reg */ 44294a71df50SFrank Blaschka rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL | 44304a71df50SFrank Blaschka LPA_100BASE4 | LPA_LPACK; 44314a71df50SFrank Blaschka break; 44324a71df50SFrank Blaschka case MII_EXPANSION: /* Expansion register */ 44334a71df50SFrank Blaschka break; 44344a71df50SFrank Blaschka case MII_DCOUNTER: /* disconnect counter */ 44354a71df50SFrank Blaschka break; 44364a71df50SFrank Blaschka case MII_FCSCOUNTER: /* false carrier counter */ 44374a71df50SFrank Blaschka break; 44384a71df50SFrank Blaschka case MII_NWAYTEST: /* N-way auto-neg test register */ 44394a71df50SFrank Blaschka break; 44404a71df50SFrank Blaschka case MII_RERRCOUNTER: /* rx error counter */ 44414a71df50SFrank Blaschka rc = card->stats.rx_errors; 44424a71df50SFrank Blaschka break; 44434a71df50SFrank Blaschka case MII_SREVISION: /* silicon revision */ 44444a71df50SFrank Blaschka break; 44454a71df50SFrank Blaschka case MII_RESV1: /* reserved 1 */ 44464a71df50SFrank Blaschka break; 44474a71df50SFrank Blaschka case MII_LBRERROR: /* loopback, rx, bypass error */ 44484a71df50SFrank Blaschka break; 44494a71df50SFrank Blaschka case MII_PHYADDR: /* physical address */ 44504a71df50SFrank Blaschka break; 44514a71df50SFrank Blaschka case MII_RESV2: /* reserved 2 */ 44524a71df50SFrank Blaschka break; 44534a71df50SFrank Blaschka case MII_TPISTATUS: /* TPI status for 10mbps */ 44544a71df50SFrank Blaschka break; 44554a71df50SFrank Blaschka case MII_NCONFIG: /* network interface config */ 44564a71df50SFrank Blaschka break; 44574a71df50SFrank Blaschka default: 44584a71df50SFrank Blaschka break; 44594a71df50SFrank Blaschka } 44604a71df50SFrank Blaschka return rc; 44614a71df50SFrank Blaschka } 44624a71df50SFrank Blaschka 44634a71df50SFrank Blaschka static int qeth_send_ipa_snmp_cmd(struct qeth_card *card, 44644a71df50SFrank Blaschka struct qeth_cmd_buffer *iob, int len, 44654a71df50SFrank Blaschka int (*reply_cb)(struct qeth_card *, struct qeth_reply *, 44664a71df50SFrank Blaschka unsigned long), 44674a71df50SFrank Blaschka void *reply_param) 44684a71df50SFrank Blaschka { 44694a71df50SFrank Blaschka u16 s1, s2; 44704a71df50SFrank Blaschka 4471847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "sendsnmp"); 44724a71df50SFrank Blaschka 44734a71df50SFrank Blaschka /* adjust PDU length fields in IPA_PDU_HEADER */ 44744a71df50SFrank Blaschka s1 = (u32) IPA_PDU_HEADER_SIZE + len; 44754a71df50SFrank Blaschka s2 = (u32) len; 44764a71df50SFrank Blaschka memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); 44774a71df50SFrank Blaschka memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); 44784a71df50SFrank Blaschka memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); 44794a71df50SFrank Blaschka memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); 44804a71df50SFrank Blaschka return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob, 44814a71df50SFrank Blaschka reply_cb, reply_param); 44824a71df50SFrank Blaschka } 44834a71df50SFrank Blaschka 44844a71df50SFrank Blaschka static int qeth_snmp_command_cb(struct qeth_card *card, 44854a71df50SFrank Blaschka struct qeth_reply *reply, unsigned long sdata) 44864a71df50SFrank Blaschka { 44874a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 44884a71df50SFrank Blaschka struct qeth_arp_query_info *qinfo; 44894a71df50SFrank Blaschka unsigned char *data; 44909a764c1eSJulian Wiedmann void *snmp_data; 44914a71df50SFrank Blaschka __u16 data_len; 44924a71df50SFrank Blaschka 4493847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "snpcmdcb"); 44944a71df50SFrank Blaschka 44954a71df50SFrank Blaschka cmd = (struct qeth_ipa_cmd *) sdata; 44964a71df50SFrank Blaschka data = (unsigned char *)((char *)cmd - reply->offset); 44974a71df50SFrank Blaschka qinfo = (struct qeth_arp_query_info *) reply->param; 44984a71df50SFrank Blaschka 44994a71df50SFrank Blaschka if (cmd->hdr.return_code) { 45008a593148SThomas Richter QETH_CARD_TEXT_(card, 4, "scer1%x", cmd->hdr.return_code); 45014a71df50SFrank Blaschka return 0; 45024a71df50SFrank Blaschka } 45034a71df50SFrank Blaschka if (cmd->data.setadapterparms.hdr.return_code) { 45044a71df50SFrank Blaschka cmd->hdr.return_code = 45054a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.return_code; 45068a593148SThomas Richter QETH_CARD_TEXT_(card, 4, "scer2%x", cmd->hdr.return_code); 45074a71df50SFrank Blaschka return 0; 45084a71df50SFrank Blaschka } 45094a71df50SFrank Blaschka data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data)); 45109a764c1eSJulian Wiedmann if (cmd->data.setadapterparms.hdr.seq_no == 1) { 45119a764c1eSJulian Wiedmann snmp_data = &cmd->data.setadapterparms.data.snmp; 45129a764c1eSJulian Wiedmann data_len -= offsetof(struct qeth_ipa_cmd, 45139a764c1eSJulian Wiedmann data.setadapterparms.data.snmp); 45149a764c1eSJulian Wiedmann } else { 45159a764c1eSJulian Wiedmann snmp_data = &cmd->data.setadapterparms.data.snmp.request; 45169a764c1eSJulian Wiedmann data_len -= offsetof(struct qeth_ipa_cmd, 45179a764c1eSJulian Wiedmann data.setadapterparms.data.snmp.request); 45189a764c1eSJulian Wiedmann } 45194a71df50SFrank Blaschka 45204a71df50SFrank Blaschka /* check if there is enough room in userspace */ 45214a71df50SFrank Blaschka if ((qinfo->udata_len - qinfo->udata_offset) < data_len) { 4522847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 4, "scer3%i", -ENOMEM); 4523e0a8114cSUrsula Braun cmd->hdr.return_code = IPA_RC_ENOMEM; 45244a71df50SFrank Blaschka return 0; 45254a71df50SFrank Blaschka } 4526847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 4, "snore%i", 45274a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.used_total); 4528847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 4, "sseqn%i", 45294a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.seq_no); 45304a71df50SFrank Blaschka /*copy entries to user buffer*/ 45319a764c1eSJulian Wiedmann memcpy(qinfo->udata + qinfo->udata_offset, snmp_data, data_len); 45324a71df50SFrank Blaschka qinfo->udata_offset += data_len; 45339a764c1eSJulian Wiedmann 45344a71df50SFrank Blaschka /* check if all replies received ... */ 4535847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 4, "srtot%i", 45364a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.used_total); 4537847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 4, "srseq%i", 45384a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.seq_no); 45394a71df50SFrank Blaschka if (cmd->data.setadapterparms.hdr.seq_no < 45404a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.used_total) 45414a71df50SFrank Blaschka return 1; 45424a71df50SFrank Blaschka return 0; 45434a71df50SFrank Blaschka } 45444a71df50SFrank Blaschka 4545942d6984SJulian Wiedmann static int qeth_snmp_command(struct qeth_card *card, char __user *udata) 45464a71df50SFrank Blaschka { 45474a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 45484a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 45494a71df50SFrank Blaschka struct qeth_snmp_ureq *ureq; 45506fb392b1SUrsula Braun unsigned int req_len; 45514a71df50SFrank Blaschka struct qeth_arp_query_info qinfo = {0, }; 45524a71df50SFrank Blaschka int rc = 0; 45534a71df50SFrank Blaschka 4554847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "snmpcmd"); 45554a71df50SFrank Blaschka 45564a71df50SFrank Blaschka if (card->info.guestlan) 45574a71df50SFrank Blaschka return -EOPNOTSUPP; 45584a71df50SFrank Blaschka 45594a71df50SFrank Blaschka if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) && 45604fda3354SJulian Wiedmann IS_LAYER3(card)) 45614a71df50SFrank Blaschka return -EOPNOTSUPP; 45624fda3354SJulian Wiedmann 45634a71df50SFrank Blaschka /* skip 4 bytes (data_len struct member) to get req_len */ 45644a71df50SFrank Blaschka if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int))) 45654a71df50SFrank Blaschka return -EFAULT; 45666fb392b1SUrsula Braun if (req_len > (QETH_BUFSIZE - IPA_PDU_HEADER_SIZE - 45676fb392b1SUrsula Braun sizeof(struct qeth_ipacmd_hdr) - 45686fb392b1SUrsula Braun sizeof(struct qeth_ipacmd_setadpparms_hdr))) 45696fb392b1SUrsula Braun return -EINVAL; 45704986f3f0SJulia Lawall ureq = memdup_user(udata, req_len + sizeof(struct qeth_snmp_ureq_hdr)); 45714986f3f0SJulia Lawall if (IS_ERR(ureq)) { 4572847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "snmpnome"); 45734986f3f0SJulia Lawall return PTR_ERR(ureq); 45744a71df50SFrank Blaschka } 45754a71df50SFrank Blaschka qinfo.udata_len = ureq->hdr.data_len; 45764a71df50SFrank Blaschka qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL); 45774a71df50SFrank Blaschka if (!qinfo.udata) { 45784a71df50SFrank Blaschka kfree(ureq); 45794a71df50SFrank Blaschka return -ENOMEM; 45804a71df50SFrank Blaschka } 45814a71df50SFrank Blaschka qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr); 45824a71df50SFrank Blaschka 45834a71df50SFrank Blaschka iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL, 45844a71df50SFrank Blaschka QETH_SNMP_SETADP_CMDLENGTH + req_len); 45851aec42bcSThomas Richter if (!iob) { 45861aec42bcSThomas Richter rc = -ENOMEM; 45871aec42bcSThomas Richter goto out; 45881aec42bcSThomas Richter } 4589ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 45904a71df50SFrank Blaschka memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len); 45914a71df50SFrank Blaschka rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len, 45924a71df50SFrank Blaschka qeth_snmp_command_cb, (void *)&qinfo); 45934a71df50SFrank Blaschka if (rc) 4594e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "SNMP command failed on device %x: (%#x)\n", 4595e19e5be8SJulian Wiedmann CARD_DEVID(card), rc); 45964a71df50SFrank Blaschka else { 45974a71df50SFrank Blaschka if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) 45984a71df50SFrank Blaschka rc = -EFAULT; 45994a71df50SFrank Blaschka } 46001aec42bcSThomas Richter out: 46014a71df50SFrank Blaschka kfree(ureq); 46024a71df50SFrank Blaschka kfree(qinfo.udata); 46034a71df50SFrank Blaschka return rc; 46044a71df50SFrank Blaschka } 46054a71df50SFrank Blaschka 4606c3ab96f3SFrank Blaschka static int qeth_setadpparms_query_oat_cb(struct qeth_card *card, 4607c3ab96f3SFrank Blaschka struct qeth_reply *reply, unsigned long data) 4608c3ab96f3SFrank Blaschka { 4609686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data; 4610c3ab96f3SFrank Blaschka struct qeth_qoat_priv *priv; 4611c3ab96f3SFrank Blaschka char *resdata; 4612c3ab96f3SFrank Blaschka int resdatalen; 4613c3ab96f3SFrank Blaschka 4614c3ab96f3SFrank Blaschka QETH_CARD_TEXT(card, 3, "qoatcb"); 4615686c97eeSJulian Wiedmann if (qeth_setadpparms_inspect_rc(cmd)) 4616686c97eeSJulian Wiedmann return 0; 4617c3ab96f3SFrank Blaschka 4618c3ab96f3SFrank Blaschka priv = (struct qeth_qoat_priv *)reply->param; 4619c3ab96f3SFrank Blaschka resdatalen = cmd->data.setadapterparms.hdr.cmdlength; 4620c3ab96f3SFrank Blaschka resdata = (char *)data + 28; 4621c3ab96f3SFrank Blaschka 4622c3ab96f3SFrank Blaschka if (resdatalen > (priv->buffer_len - priv->response_len)) { 4623c3ab96f3SFrank Blaschka cmd->hdr.return_code = IPA_RC_FFFF; 4624c3ab96f3SFrank Blaschka return 0; 4625c3ab96f3SFrank Blaschka } 4626c3ab96f3SFrank Blaschka 4627c3ab96f3SFrank Blaschka memcpy((priv->buffer + priv->response_len), resdata, 4628c3ab96f3SFrank Blaschka resdatalen); 4629c3ab96f3SFrank Blaschka priv->response_len += resdatalen; 4630c3ab96f3SFrank Blaschka 4631c3ab96f3SFrank Blaschka if (cmd->data.setadapterparms.hdr.seq_no < 4632c3ab96f3SFrank Blaschka cmd->data.setadapterparms.hdr.used_total) 4633c3ab96f3SFrank Blaschka return 1; 4634c3ab96f3SFrank Blaschka return 0; 4635c3ab96f3SFrank Blaschka } 4636c3ab96f3SFrank Blaschka 4637942d6984SJulian Wiedmann static int qeth_query_oat_command(struct qeth_card *card, char __user *udata) 4638c3ab96f3SFrank Blaschka { 4639c3ab96f3SFrank Blaschka int rc = 0; 4640c3ab96f3SFrank Blaschka struct qeth_cmd_buffer *iob; 4641c3ab96f3SFrank Blaschka struct qeth_ipa_cmd *cmd; 4642c3ab96f3SFrank Blaschka struct qeth_query_oat *oat_req; 4643c3ab96f3SFrank Blaschka struct qeth_query_oat_data oat_data; 4644c3ab96f3SFrank Blaschka struct qeth_qoat_priv priv; 4645c3ab96f3SFrank Blaschka void __user *tmp; 4646c3ab96f3SFrank Blaschka 4647c3ab96f3SFrank Blaschka QETH_CARD_TEXT(card, 3, "qoatcmd"); 4648c3ab96f3SFrank Blaschka 4649c3ab96f3SFrank Blaschka if (!qeth_adp_supported(card, IPA_SETADP_QUERY_OAT)) { 4650c3ab96f3SFrank Blaschka rc = -EOPNOTSUPP; 4651c3ab96f3SFrank Blaschka goto out; 4652c3ab96f3SFrank Blaschka } 4653c3ab96f3SFrank Blaschka 4654c3ab96f3SFrank Blaschka if (copy_from_user(&oat_data, udata, 4655c3ab96f3SFrank Blaschka sizeof(struct qeth_query_oat_data))) { 4656c3ab96f3SFrank Blaschka rc = -EFAULT; 4657c3ab96f3SFrank Blaschka goto out; 4658c3ab96f3SFrank Blaschka } 4659c3ab96f3SFrank Blaschka 4660c3ab96f3SFrank Blaschka priv.buffer_len = oat_data.buffer_len; 4661c3ab96f3SFrank Blaschka priv.response_len = 0; 4662aec45e85SWenjia Zhang priv.buffer = vzalloc(oat_data.buffer_len); 4663c3ab96f3SFrank Blaschka if (!priv.buffer) { 4664c3ab96f3SFrank Blaschka rc = -ENOMEM; 4665c3ab96f3SFrank Blaschka goto out; 4666c3ab96f3SFrank Blaschka } 4667c3ab96f3SFrank Blaschka 4668c3ab96f3SFrank Blaschka iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_OAT, 4669c3ab96f3SFrank Blaschka sizeof(struct qeth_ipacmd_setadpparms_hdr) + 4670c3ab96f3SFrank Blaschka sizeof(struct qeth_query_oat)); 46711aec42bcSThomas Richter if (!iob) { 46721aec42bcSThomas Richter rc = -ENOMEM; 46731aec42bcSThomas Richter goto out_free; 46741aec42bcSThomas Richter } 4675ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 4676c3ab96f3SFrank Blaschka oat_req = &cmd->data.setadapterparms.data.query_oat; 4677c3ab96f3SFrank Blaschka oat_req->subcmd_code = oat_data.command; 4678c3ab96f3SFrank Blaschka 4679c3ab96f3SFrank Blaschka rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_query_oat_cb, 4680c3ab96f3SFrank Blaschka &priv); 4681c3ab96f3SFrank Blaschka if (!rc) { 4682c3ab96f3SFrank Blaschka if (is_compat_task()) 4683c3ab96f3SFrank Blaschka tmp = compat_ptr(oat_data.ptr); 4684c3ab96f3SFrank Blaschka else 4685c3ab96f3SFrank Blaschka tmp = (void __user *)(unsigned long)oat_data.ptr; 4686c3ab96f3SFrank Blaschka 4687c3ab96f3SFrank Blaschka if (copy_to_user(tmp, priv.buffer, 4688c3ab96f3SFrank Blaschka priv.response_len)) { 4689c3ab96f3SFrank Blaschka rc = -EFAULT; 4690c3ab96f3SFrank Blaschka goto out_free; 4691c3ab96f3SFrank Blaschka } 4692c3ab96f3SFrank Blaschka 4693c3ab96f3SFrank Blaschka oat_data.response_len = priv.response_len; 4694c3ab96f3SFrank Blaschka 4695c3ab96f3SFrank Blaschka if (copy_to_user(udata, &oat_data, 4696c3ab96f3SFrank Blaschka sizeof(struct qeth_query_oat_data))) 4697c3ab96f3SFrank Blaschka rc = -EFAULT; 4698c3ab96f3SFrank Blaschka } else 4699c3ab96f3SFrank Blaschka if (rc == IPA_RC_FFFF) 4700c3ab96f3SFrank Blaschka rc = -EFAULT; 4701c3ab96f3SFrank Blaschka 4702c3ab96f3SFrank Blaschka out_free: 4703aec45e85SWenjia Zhang vfree(priv.buffer); 4704c3ab96f3SFrank Blaschka out: 4705c3ab96f3SFrank Blaschka return rc; 4706c3ab96f3SFrank Blaschka } 4707c3ab96f3SFrank Blaschka 4708e71e4072SHeiko Carstens static int qeth_query_card_info_cb(struct qeth_card *card, 470902d5cb5bSEugene Crosser struct qeth_reply *reply, unsigned long data) 471002d5cb5bSEugene Crosser { 4711686c97eeSJulian Wiedmann struct carrier_info *carrier_info = (struct carrier_info *)reply->param; 4712686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data; 471302d5cb5bSEugene Crosser struct qeth_query_card_info *card_info; 471402d5cb5bSEugene Crosser 471502d5cb5bSEugene Crosser QETH_CARD_TEXT(card, 2, "qcrdincb"); 4716686c97eeSJulian Wiedmann if (qeth_setadpparms_inspect_rc(cmd)) 4717686c97eeSJulian Wiedmann return 0; 4718686c97eeSJulian Wiedmann 471902d5cb5bSEugene Crosser card_info = &cmd->data.setadapterparms.data.card_info; 472002d5cb5bSEugene Crosser carrier_info->card_type = card_info->card_type; 472102d5cb5bSEugene Crosser carrier_info->port_mode = card_info->port_mode; 472202d5cb5bSEugene Crosser carrier_info->port_speed = card_info->port_speed; 472302d5cb5bSEugene Crosser return 0; 472402d5cb5bSEugene Crosser } 472502d5cb5bSEugene Crosser 4726bca51650SThomas Richter static int qeth_query_card_info(struct qeth_card *card, 472702d5cb5bSEugene Crosser struct carrier_info *carrier_info) 472802d5cb5bSEugene Crosser { 472902d5cb5bSEugene Crosser struct qeth_cmd_buffer *iob; 473002d5cb5bSEugene Crosser 473102d5cb5bSEugene Crosser QETH_CARD_TEXT(card, 2, "qcrdinfo"); 473202d5cb5bSEugene Crosser if (!qeth_adp_supported(card, IPA_SETADP_QUERY_CARD_INFO)) 473302d5cb5bSEugene Crosser return -EOPNOTSUPP; 473402d5cb5bSEugene Crosser iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_CARD_INFO, 473502d5cb5bSEugene Crosser sizeof(struct qeth_ipacmd_setadpparms_hdr)); 47361aec42bcSThomas Richter if (!iob) 47371aec42bcSThomas Richter return -ENOMEM; 473802d5cb5bSEugene Crosser return qeth_send_ipa_cmd(card, iob, qeth_query_card_info_cb, 473902d5cb5bSEugene Crosser (void *)carrier_info); 474002d5cb5bSEugene Crosser } 474102d5cb5bSEugene Crosser 4742ec61bd2fSJulian Wiedmann /** 4743ec61bd2fSJulian Wiedmann * qeth_vm_request_mac() - Request a hypervisor-managed MAC address 4744ec61bd2fSJulian Wiedmann * @card: pointer to a qeth_card 4745ec61bd2fSJulian Wiedmann * 4746ec61bd2fSJulian Wiedmann * Returns 4747ec61bd2fSJulian Wiedmann * 0, if a MAC address has been set for the card's netdevice 4748ec61bd2fSJulian Wiedmann * a return code, for various error conditions 4749ec61bd2fSJulian Wiedmann */ 4750ec61bd2fSJulian Wiedmann int qeth_vm_request_mac(struct qeth_card *card) 4751ec61bd2fSJulian Wiedmann { 4752ec61bd2fSJulian Wiedmann struct diag26c_mac_resp *response; 4753ec61bd2fSJulian Wiedmann struct diag26c_mac_req *request; 4754ec61bd2fSJulian Wiedmann struct ccw_dev_id id; 4755ec61bd2fSJulian Wiedmann int rc; 4756ec61bd2fSJulian Wiedmann 4757ec61bd2fSJulian Wiedmann QETH_DBF_TEXT(SETUP, 2, "vmreqmac"); 4758ec61bd2fSJulian Wiedmann 4759ec61bd2fSJulian Wiedmann request = kzalloc(sizeof(*request), GFP_KERNEL | GFP_DMA); 4760ec61bd2fSJulian Wiedmann response = kzalloc(sizeof(*response), GFP_KERNEL | GFP_DMA); 4761ec61bd2fSJulian Wiedmann if (!request || !response) { 4762ec61bd2fSJulian Wiedmann rc = -ENOMEM; 4763ec61bd2fSJulian Wiedmann goto out; 4764ec61bd2fSJulian Wiedmann } 4765ec61bd2fSJulian Wiedmann 476646646105SJulian Wiedmann ccw_device_get_id(CARD_DDEV(card), &id); 4767ec61bd2fSJulian Wiedmann request->resp_buf_len = sizeof(*response); 4768ec61bd2fSJulian Wiedmann request->resp_version = DIAG26C_VERSION2; 4769ec61bd2fSJulian Wiedmann request->op_code = DIAG26C_GET_MAC; 4770ec61bd2fSJulian Wiedmann request->devno = id.devno; 4771ec61bd2fSJulian Wiedmann 4772615dff22SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, request, sizeof(*request)); 4773ec61bd2fSJulian Wiedmann rc = diag26c(request, response, DIAG26C_MAC_SERVICES); 4774615dff22SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, request, sizeof(*request)); 4775ec61bd2fSJulian Wiedmann if (rc) 4776ec61bd2fSJulian Wiedmann goto out; 4777615dff22SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, response, sizeof(*response)); 4778ec61bd2fSJulian Wiedmann 4779ec61bd2fSJulian Wiedmann if (request->resp_buf_len < sizeof(*response) || 4780ec61bd2fSJulian Wiedmann response->version != request->resp_version) { 4781ec61bd2fSJulian Wiedmann rc = -EIO; 4782ec61bd2fSJulian Wiedmann QETH_DBF_TEXT(SETUP, 2, "badresp"); 4783ec61bd2fSJulian Wiedmann QETH_DBF_HEX(SETUP, 2, &request->resp_buf_len, 4784ec61bd2fSJulian Wiedmann sizeof(request->resp_buf_len)); 4785ec61bd2fSJulian Wiedmann } else if (!is_valid_ether_addr(response->mac)) { 4786ec61bd2fSJulian Wiedmann rc = -EINVAL; 4787ec61bd2fSJulian Wiedmann QETH_DBF_TEXT(SETUP, 2, "badmac"); 4788ec61bd2fSJulian Wiedmann QETH_DBF_HEX(SETUP, 2, response->mac, ETH_ALEN); 4789ec61bd2fSJulian Wiedmann } else { 4790ec61bd2fSJulian Wiedmann ether_addr_copy(card->dev->dev_addr, response->mac); 4791ec61bd2fSJulian Wiedmann } 4792ec61bd2fSJulian Wiedmann 4793ec61bd2fSJulian Wiedmann out: 4794ec61bd2fSJulian Wiedmann kfree(response); 4795ec61bd2fSJulian Wiedmann kfree(request); 4796ec61bd2fSJulian Wiedmann return rc; 4797ec61bd2fSJulian Wiedmann } 4798ec61bd2fSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_vm_request_mac); 4799ec61bd2fSJulian Wiedmann 4800cef6ff22SJulian Wiedmann static int qeth_get_qdio_q_format(struct qeth_card *card) 48014a71df50SFrank Blaschka { 4802aa59004bSJulian Wiedmann if (card->info.type == QETH_CARD_TYPE_IQD) 4803aa59004bSJulian Wiedmann return QDIO_IQDIO_QFMT; 4804aa59004bSJulian Wiedmann else 4805aa59004bSJulian Wiedmann return QDIO_QETH_QFMT; 48064a71df50SFrank Blaschka } 48074a71df50SFrank Blaschka 4808d0ff1f52SUrsula Braun static void qeth_determine_capabilities(struct qeth_card *card) 4809d0ff1f52SUrsula Braun { 4810d0ff1f52SUrsula Braun int rc; 4811d0ff1f52SUrsula Braun int length; 4812d0ff1f52SUrsula Braun char *prcd; 4813d0ff1f52SUrsula Braun struct ccw_device *ddev; 4814d0ff1f52SUrsula Braun int ddev_offline = 0; 4815d0ff1f52SUrsula Braun 4816d0ff1f52SUrsula Braun QETH_DBF_TEXT(SETUP, 2, "detcapab"); 4817d0ff1f52SUrsula Braun ddev = CARD_DDEV(card); 4818d0ff1f52SUrsula Braun if (!ddev->online) { 4819d0ff1f52SUrsula Braun ddev_offline = 1; 4820d0ff1f52SUrsula Braun rc = ccw_device_set_online(ddev); 4821d0ff1f52SUrsula Braun if (rc) { 4822d0ff1f52SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); 4823d0ff1f52SUrsula Braun goto out; 4824d0ff1f52SUrsula Braun } 4825d0ff1f52SUrsula Braun } 4826d0ff1f52SUrsula Braun 4827d0ff1f52SUrsula Braun rc = qeth_read_conf_data(card, (void **) &prcd, &length); 4828d0ff1f52SUrsula Braun if (rc) { 4829e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "qeth_read_conf_data on device %x returned %i\n", 4830e19e5be8SJulian Wiedmann CARD_DEVID(card), rc); 4831d0ff1f52SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); 4832d0ff1f52SUrsula Braun goto out_offline; 4833d0ff1f52SUrsula Braun } 4834d0ff1f52SUrsula Braun qeth_configure_unitaddr(card, prcd); 48357e665afbSUrsula Braun if (ddev_offline) 4836d0ff1f52SUrsula Braun qeth_configure_blkt_default(card, prcd); 4837d0ff1f52SUrsula Braun kfree(prcd); 4838d0ff1f52SUrsula Braun 4839d0ff1f52SUrsula Braun rc = qdio_get_ssqd_desc(ddev, &card->ssqd); 4840d0ff1f52SUrsula Braun if (rc) 4841d0ff1f52SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); 4842d0ff1f52SUrsula Braun 48430da9581dSEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "qfmt%d", card->ssqd.qfmt); 4844bbeb2414SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "ac1:%02x", card->ssqd.qdioac1); 4845bbeb2414SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "ac2:%04x", card->ssqd.qdioac2); 4846bbeb2414SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "ac3:%04x", card->ssqd.qdioac3); 48470da9581dSEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "icnt%d", card->ssqd.icnt); 48480da9581dSEinar Lueck if (!((card->ssqd.qfmt != QDIO_IQDIO_QFMT) || 48490da9581dSEinar Lueck ((card->ssqd.qdioac1 & CHSC_AC1_INITIATE_INPUTQ) == 0) || 48500da9581dSEinar Lueck ((card->ssqd.qdioac3 & CHSC_AC3_FORMAT2_CQ_AVAILABLE) == 0))) { 48510da9581dSEinar Lueck dev_info(&card->gdev->dev, 48520da9581dSEinar Lueck "Completion Queueing supported\n"); 48530da9581dSEinar Lueck } else { 48540da9581dSEinar Lueck card->options.cq = QETH_CQ_NOTAVAILABLE; 48550da9581dSEinar Lueck } 48560da9581dSEinar Lueck 48570da9581dSEinar Lueck 4858d0ff1f52SUrsula Braun out_offline: 4859d0ff1f52SUrsula Braun if (ddev_offline == 1) 4860d0ff1f52SUrsula Braun ccw_device_set_offline(ddev); 4861d0ff1f52SUrsula Braun out: 4862d0ff1f52SUrsula Braun return; 4863d0ff1f52SUrsula Braun } 4864d0ff1f52SUrsula Braun 4865cef6ff22SJulian Wiedmann static void qeth_qdio_establish_cq(struct qeth_card *card, 48660da9581dSEinar Lueck struct qdio_buffer **in_sbal_ptrs, 4867cef6ff22SJulian Wiedmann void (**queue_start_poll) 4868cef6ff22SJulian Wiedmann (struct ccw_device *, int, 4869cef6ff22SJulian Wiedmann unsigned long)) 4870cef6ff22SJulian Wiedmann { 48710da9581dSEinar Lueck int i; 48720da9581dSEinar Lueck 48730da9581dSEinar Lueck if (card->options.cq == QETH_CQ_ENABLED) { 48740da9581dSEinar Lueck int offset = QDIO_MAX_BUFFERS_PER_Q * 48750da9581dSEinar Lueck (card->qdio.no_in_queues - 1); 48760da9581dSEinar Lueck for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) { 48770da9581dSEinar Lueck in_sbal_ptrs[offset + i] = (struct qdio_buffer *) 48780da9581dSEinar Lueck virt_to_phys(card->qdio.c_q->bufs[i].buffer); 48790da9581dSEinar Lueck } 48800da9581dSEinar Lueck 48810da9581dSEinar Lueck queue_start_poll[card->qdio.no_in_queues - 1] = NULL; 48820da9581dSEinar Lueck } 48830da9581dSEinar Lueck } 48840da9581dSEinar Lueck 48854a71df50SFrank Blaschka static int qeth_qdio_establish(struct qeth_card *card) 48864a71df50SFrank Blaschka { 48874a71df50SFrank Blaschka struct qdio_initialize init_data; 48884a71df50SFrank Blaschka char *qib_param_field; 48894a71df50SFrank Blaschka struct qdio_buffer **in_sbal_ptrs; 4890104ea556Sfrank.blaschka@de.ibm.com void (**queue_start_poll) (struct ccw_device *, int, unsigned long); 48914a71df50SFrank Blaschka struct qdio_buffer **out_sbal_ptrs; 48924a71df50SFrank Blaschka int i, j, k; 48934a71df50SFrank Blaschka int rc = 0; 48944a71df50SFrank Blaschka 4895d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "qdioest"); 48964a71df50SFrank Blaschka 48976396bb22SKees Cook qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q, 48984a71df50SFrank Blaschka GFP_KERNEL); 4899104ea556Sfrank.blaschka@de.ibm.com if (!qib_param_field) { 4900104ea556Sfrank.blaschka@de.ibm.com rc = -ENOMEM; 4901104ea556Sfrank.blaschka@de.ibm.com goto out_free_nothing; 4902104ea556Sfrank.blaschka@de.ibm.com } 49034a71df50SFrank Blaschka 49044a71df50SFrank Blaschka qeth_create_qib_param_field(card, qib_param_field); 49054a71df50SFrank Blaschka qeth_create_qib_param_field_blkt(card, qib_param_field); 49064a71df50SFrank Blaschka 49076396bb22SKees Cook in_sbal_ptrs = kcalloc(card->qdio.no_in_queues * QDIO_MAX_BUFFERS_PER_Q, 49086396bb22SKees Cook sizeof(void *), 49094a71df50SFrank Blaschka GFP_KERNEL); 49104a71df50SFrank Blaschka if (!in_sbal_ptrs) { 4911104ea556Sfrank.blaschka@de.ibm.com rc = -ENOMEM; 4912104ea556Sfrank.blaschka@de.ibm.com goto out_free_qib_param; 49134a71df50SFrank Blaschka } 49140da9581dSEinar Lueck for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) { 49154a71df50SFrank Blaschka in_sbal_ptrs[i] = (struct qdio_buffer *) 49164a71df50SFrank Blaschka virt_to_phys(card->qdio.in_q->bufs[i].buffer); 49170da9581dSEinar Lueck } 49184a71df50SFrank Blaschka 49196396bb22SKees Cook queue_start_poll = kcalloc(card->qdio.no_in_queues, sizeof(void *), 49200da9581dSEinar Lueck GFP_KERNEL); 4921104ea556Sfrank.blaschka@de.ibm.com if (!queue_start_poll) { 4922104ea556Sfrank.blaschka@de.ibm.com rc = -ENOMEM; 4923104ea556Sfrank.blaschka@de.ibm.com goto out_free_in_sbals; 4924104ea556Sfrank.blaschka@de.ibm.com } 49250da9581dSEinar Lueck for (i = 0; i < card->qdio.no_in_queues; ++i) 49267bcd64ebSJulian Wiedmann queue_start_poll[i] = qeth_qdio_start_poll; 49270da9581dSEinar Lueck 49280da9581dSEinar Lueck qeth_qdio_establish_cq(card, in_sbal_ptrs, queue_start_poll); 4929104ea556Sfrank.blaschka@de.ibm.com 49304a71df50SFrank Blaschka out_sbal_ptrs = 49316396bb22SKees Cook kcalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q, 49326396bb22SKees Cook sizeof(void *), 49336396bb22SKees Cook GFP_KERNEL); 49344a71df50SFrank Blaschka if (!out_sbal_ptrs) { 4935104ea556Sfrank.blaschka@de.ibm.com rc = -ENOMEM; 4936104ea556Sfrank.blaschka@de.ibm.com goto out_free_queue_start_poll; 49374a71df50SFrank Blaschka } 49384a71df50SFrank Blaschka for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i) 49394a71df50SFrank Blaschka for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) { 49404a71df50SFrank Blaschka out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys( 49410da9581dSEinar Lueck card->qdio.out_qs[i]->bufs[j]->buffer); 49424a71df50SFrank Blaschka } 49434a71df50SFrank Blaschka 49444a71df50SFrank Blaschka memset(&init_data, 0, sizeof(struct qdio_initialize)); 49454a71df50SFrank Blaschka init_data.cdev = CARD_DDEV(card); 49464a71df50SFrank Blaschka init_data.q_format = qeth_get_qdio_q_format(card); 49474a71df50SFrank Blaschka init_data.qib_param_field_format = 0; 49484a71df50SFrank Blaschka init_data.qib_param_field = qib_param_field; 49490da9581dSEinar Lueck init_data.no_input_qs = card->qdio.no_in_queues; 49504a71df50SFrank Blaschka init_data.no_output_qs = card->qdio.no_out_queues; 49517bcd64ebSJulian Wiedmann init_data.input_handler = qeth_qdio_input_handler; 49527bcd64ebSJulian Wiedmann init_data.output_handler = qeth_qdio_output_handler; 4953e58b0d90SSteffen Maier init_data.queue_start_poll_array = queue_start_poll; 49544a71df50SFrank Blaschka init_data.int_parm = (unsigned long) card; 49554a71df50SFrank Blaschka init_data.input_sbal_addr_array = (void **) in_sbal_ptrs; 49564a71df50SFrank Blaschka init_data.output_sbal_addr_array = (void **) out_sbal_ptrs; 49570da9581dSEinar Lueck init_data.output_sbal_state_array = card->qdio.out_bufstates; 49583d6c76ffSJan Glauber init_data.scan_threshold = 49590fa81cd4SStefan Raspl (card->info.type == QETH_CARD_TYPE_IQD) ? 1 : 32; 49604a71df50SFrank Blaschka 49614a71df50SFrank Blaschka if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED, 49624a71df50SFrank Blaschka QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) { 4963cc961d40SJan Glauber rc = qdio_allocate(&init_data); 4964cc961d40SJan Glauber if (rc) { 49654a71df50SFrank Blaschka atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); 4966cc961d40SJan Glauber goto out; 49674a71df50SFrank Blaschka } 4968cc961d40SJan Glauber rc = qdio_establish(&init_data); 4969cc961d40SJan Glauber if (rc) { 4970cc961d40SJan Glauber atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); 4971cc961d40SJan Glauber qdio_free(CARD_DDEV(card)); 4972cc961d40SJan Glauber } 4973cc961d40SJan Glauber } 49740da9581dSEinar Lueck 49750da9581dSEinar Lueck switch (card->options.cq) { 49760da9581dSEinar Lueck case QETH_CQ_ENABLED: 49770da9581dSEinar Lueck dev_info(&card->gdev->dev, "Completion Queue support enabled"); 49780da9581dSEinar Lueck break; 49790da9581dSEinar Lueck case QETH_CQ_DISABLED: 49800da9581dSEinar Lueck dev_info(&card->gdev->dev, "Completion Queue support disabled"); 49810da9581dSEinar Lueck break; 49820da9581dSEinar Lueck default: 49830da9581dSEinar Lueck break; 49840da9581dSEinar Lueck } 4985cc961d40SJan Glauber out: 49864a71df50SFrank Blaschka kfree(out_sbal_ptrs); 4987104ea556Sfrank.blaschka@de.ibm.com out_free_queue_start_poll: 4988104ea556Sfrank.blaschka@de.ibm.com kfree(queue_start_poll); 4989104ea556Sfrank.blaschka@de.ibm.com out_free_in_sbals: 49904a71df50SFrank Blaschka kfree(in_sbal_ptrs); 4991104ea556Sfrank.blaschka@de.ibm.com out_free_qib_param: 49924a71df50SFrank Blaschka kfree(qib_param_field); 4993104ea556Sfrank.blaschka@de.ibm.com out_free_nothing: 49944a71df50SFrank Blaschka return rc; 49954a71df50SFrank Blaschka } 49964a71df50SFrank Blaschka 49974a71df50SFrank Blaschka static void qeth_core_free_card(struct qeth_card *card) 49984a71df50SFrank Blaschka { 4999d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "freecrd"); 5000d11ba0c4SPeter Tiedemann QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); 50014a71df50SFrank Blaschka qeth_clean_channel(&card->read); 50024a71df50SFrank Blaschka qeth_clean_channel(&card->write); 5003f15cdaf2SJulian Wiedmann qeth_clean_channel(&card->data); 5004c0a2e4d1SJulian Wiedmann destroy_workqueue(card->event_wq); 50054a71df50SFrank Blaschka qeth_free_qdio_buffers(card); 50066bcac508SMartin Schwidefsky unregister_service_level(&card->qeth_service_level); 5007a2eb0ad5SJulian Wiedmann dev_set_drvdata(&card->gdev->dev, NULL); 50084a71df50SFrank Blaschka kfree(card); 50094a71df50SFrank Blaschka } 50104a71df50SFrank Blaschka 5011395672e0SStefan Raspl void qeth_trace_features(struct qeth_card *card) 5012395672e0SStefan Raspl { 5013395672e0SStefan Raspl QETH_CARD_TEXT(card, 2, "features"); 50144d7def2aSThomas Richter QETH_CARD_HEX(card, 2, &card->options.ipa4, sizeof(card->options.ipa4)); 50154d7def2aSThomas Richter QETH_CARD_HEX(card, 2, &card->options.ipa6, sizeof(card->options.ipa6)); 50164d7def2aSThomas Richter QETH_CARD_HEX(card, 2, &card->options.adp, sizeof(card->options.adp)); 50174d7def2aSThomas Richter QETH_CARD_HEX(card, 2, &card->info.diagass_support, 50184d7def2aSThomas Richter sizeof(card->info.diagass_support)); 5019395672e0SStefan Raspl } 5020395672e0SStefan Raspl EXPORT_SYMBOL_GPL(qeth_trace_features); 5021395672e0SStefan Raspl 50224a71df50SFrank Blaschka static struct ccw_device_id qeth_ids[] = { 50235113fec0SUrsula Braun {CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01), 50245113fec0SUrsula Braun .driver_info = QETH_CARD_TYPE_OSD}, 50255113fec0SUrsula Braun {CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05), 50265113fec0SUrsula Braun .driver_info = QETH_CARD_TYPE_IQD}, 50275113fec0SUrsula Braun {CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06), 50285113fec0SUrsula Braun .driver_info = QETH_CARD_TYPE_OSN}, 50295113fec0SUrsula Braun {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03), 50305113fec0SUrsula Braun .driver_info = QETH_CARD_TYPE_OSM}, 50315113fec0SUrsula Braun {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02), 50325113fec0SUrsula Braun .driver_info = QETH_CARD_TYPE_OSX}, 50334a71df50SFrank Blaschka {}, 50344a71df50SFrank Blaschka }; 50354a71df50SFrank Blaschka MODULE_DEVICE_TABLE(ccw, qeth_ids); 50364a71df50SFrank Blaschka 50374a71df50SFrank Blaschka static struct ccw_driver qeth_ccw_driver = { 50383bda058bSSebastian Ott .driver = { 50393e70b3b8SSebastian Ott .owner = THIS_MODULE, 50404a71df50SFrank Blaschka .name = "qeth", 50413bda058bSSebastian Ott }, 50424a71df50SFrank Blaschka .ids = qeth_ids, 50434a71df50SFrank Blaschka .probe = ccwgroup_probe_ccwdev, 50444a71df50SFrank Blaschka .remove = ccwgroup_remove_ccwdev, 50454a71df50SFrank Blaschka }; 50464a71df50SFrank Blaschka 50479fae5c3bSJulian Wiedmann int qeth_core_hardsetup_card(struct qeth_card *card, bool *carrier_ok) 50484a71df50SFrank Blaschka { 50496ebb7f8dSStefan Raspl int retries = 3; 50504a71df50SFrank Blaschka int rc; 50514a71df50SFrank Blaschka 5052d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "hrdsetup"); 50534a71df50SFrank Blaschka atomic_set(&card->force_alloc_skb, 0); 5054725b9c04SSebastian Ott qeth_update_from_chp_desc(card); 50554a71df50SFrank Blaschka retry: 50566ebb7f8dSStefan Raspl if (retries < 3) 5057e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "Retrying to do IDX activates on device %x.\n", 5058e19e5be8SJulian Wiedmann CARD_DEVID(card)); 505922ae2790SUrsula Braun rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD); 50604a71df50SFrank Blaschka ccw_device_set_offline(CARD_DDEV(card)); 50614a71df50SFrank Blaschka ccw_device_set_offline(CARD_WDEV(card)); 50624a71df50SFrank Blaschka ccw_device_set_offline(CARD_RDEV(card)); 506322ae2790SUrsula Braun qdio_free(CARD_DDEV(card)); 5064aa909224SUrsula Braun rc = ccw_device_set_online(CARD_RDEV(card)); 5065aa909224SUrsula Braun if (rc) 5066aa909224SUrsula Braun goto retriable; 5067aa909224SUrsula Braun rc = ccw_device_set_online(CARD_WDEV(card)); 5068aa909224SUrsula Braun if (rc) 5069aa909224SUrsula Braun goto retriable; 5070aa909224SUrsula Braun rc = ccw_device_set_online(CARD_DDEV(card)); 5071aa909224SUrsula Braun if (rc) 5072aa909224SUrsula Braun goto retriable; 5073aa909224SUrsula Braun retriable: 50744a71df50SFrank Blaschka if (rc == -ERESTARTSYS) { 5075d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "break1"); 50764a71df50SFrank Blaschka return rc; 50774a71df50SFrank Blaschka } else if (rc) { 5078d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 50796ebb7f8dSStefan Raspl if (--retries < 0) 50804a71df50SFrank Blaschka goto out; 50814a71df50SFrank Blaschka else 50824a71df50SFrank Blaschka goto retry; 50834a71df50SFrank Blaschka } 5084d0ff1f52SUrsula Braun qeth_determine_capabilities(card); 50854a71df50SFrank Blaschka qeth_init_tokens(card); 50864a71df50SFrank Blaschka qeth_init_func_level(card); 50878d908eb0SJulian Wiedmann rc = qeth_idx_activate_channel(card, &card->read, qeth_idx_read_cb); 50884a71df50SFrank Blaschka if (rc == -ERESTARTSYS) { 5089d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "break2"); 50904a71df50SFrank Blaschka return rc; 50914a71df50SFrank Blaschka } else if (rc) { 5092d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); 50934a71df50SFrank Blaschka if (--retries < 0) 50944a71df50SFrank Blaschka goto out; 50954a71df50SFrank Blaschka else 50964a71df50SFrank Blaschka goto retry; 50974a71df50SFrank Blaschka } 50988d908eb0SJulian Wiedmann rc = qeth_idx_activate_channel(card, &card->write, qeth_idx_write_cb); 50994a71df50SFrank Blaschka if (rc == -ERESTARTSYS) { 5100d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "break3"); 51014a71df50SFrank Blaschka return rc; 51024a71df50SFrank Blaschka } else if (rc) { 5103d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); 51044a71df50SFrank Blaschka if (--retries < 0) 51054a71df50SFrank Blaschka goto out; 51064a71df50SFrank Blaschka else 51074a71df50SFrank Blaschka goto retry; 51084a71df50SFrank Blaschka } 5109908abbb5SUrsula Braun card->read_or_write_problem = 0; 51104a71df50SFrank Blaschka rc = qeth_mpc_initialize(card); 51114a71df50SFrank Blaschka if (rc) { 5112d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); 51134a71df50SFrank Blaschka goto out; 51144a71df50SFrank Blaschka } 51151da74b1cSFrank Blaschka 511610340510SJulian Wiedmann rc = qeth_send_startlan(card); 511710340510SJulian Wiedmann if (rc) { 511810340510SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); 511910340510SJulian Wiedmann if (rc == IPA_RC_LAN_OFFLINE) { 512010340510SJulian Wiedmann dev_warn(&card->gdev->dev, 512110340510SJulian Wiedmann "The LAN is offline\n"); 51229fae5c3bSJulian Wiedmann *carrier_ok = false; 512310340510SJulian Wiedmann } else { 512410340510SJulian Wiedmann rc = -ENODEV; 512510340510SJulian Wiedmann goto out; 512610340510SJulian Wiedmann } 512791cc98f5SJulian Wiedmann } else { 51289fae5c3bSJulian Wiedmann *carrier_ok = true; 51299fae5c3bSJulian Wiedmann } 51309fae5c3bSJulian Wiedmann 51311da74b1cSFrank Blaschka card->options.ipa4.supported_funcs = 0; 51324d7def2aSThomas Richter card->options.ipa6.supported_funcs = 0; 51331da74b1cSFrank Blaschka card->options.adp.supported_funcs = 0; 5134b4d72c08SEugene Crosser card->options.sbp.supported_funcs = 0; 51351da74b1cSFrank Blaschka card->info.diagass_support = 0; 51361aec42bcSThomas Richter rc = qeth_query_ipassists(card, QETH_PROT_IPV4); 51371aec42bcSThomas Richter if (rc == -ENOMEM) 51381aec42bcSThomas Richter goto out; 5139ee75fb86SKittipon Meesompop if (qeth_is_supported(card, IPA_IPV6)) { 5140ee75fb86SKittipon Meesompop rc = qeth_query_ipassists(card, QETH_PROT_IPV6); 5141ee75fb86SKittipon Meesompop if (rc == -ENOMEM) 5142ee75fb86SKittipon Meesompop goto out; 5143ee75fb86SKittipon Meesompop } 51441aec42bcSThomas Richter if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) { 51451aec42bcSThomas Richter rc = qeth_query_setadapterparms(card); 51461aec42bcSThomas Richter if (rc < 0) { 514710340510SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc); 51481aec42bcSThomas Richter goto out; 51491aec42bcSThomas Richter } 51501aec42bcSThomas Richter } 51511aec42bcSThomas Richter if (qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) { 51521aec42bcSThomas Richter rc = qeth_query_setdiagass(card); 51531aec42bcSThomas Richter if (rc < 0) { 515410340510SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc); 51551aec42bcSThomas Richter goto out; 51561aec42bcSThomas Richter } 51571aec42bcSThomas Richter } 51584a71df50SFrank Blaschka return 0; 51594a71df50SFrank Blaschka out: 516074eacdb9SFrank Blaschka dev_warn(&card->gdev->dev, "The qeth device driver failed to recover " 516174eacdb9SFrank Blaschka "an error on the device\n"); 5162e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "Initialization for device %x failed in hardsetup! rc=%d\n", 5163e19e5be8SJulian Wiedmann CARD_DEVID(card), rc); 51644a71df50SFrank Blaschka return rc; 51654a71df50SFrank Blaschka } 51664a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card); 51674a71df50SFrank Blaschka 51688d68af6aSJulian Wiedmann static void qeth_create_skb_frag(struct qdio_buffer_element *element, 51698d68af6aSJulian Wiedmann struct sk_buff *skb, int offset, int data_len) 51704a71df50SFrank Blaschka { 51714a71df50SFrank Blaschka struct page *page = virt_to_page(element->addr); 5172b6f72f96SJulian Wiedmann unsigned int next_frag; 5173b6f72f96SJulian Wiedmann 51748d68af6aSJulian Wiedmann /* first fill the linear space */ 51758d68af6aSJulian Wiedmann if (!skb->len) { 51768d68af6aSJulian Wiedmann unsigned int linear = min(data_len, skb_tailroom(skb)); 5177b3332930SFrank Blaschka 51788d68af6aSJulian Wiedmann skb_put_data(skb, element->addr + offset, linear); 51798d68af6aSJulian Wiedmann data_len -= linear; 51808d68af6aSJulian Wiedmann if (!data_len) 51818d68af6aSJulian Wiedmann return; 51828d68af6aSJulian Wiedmann offset += linear; 5183b6f72f96SJulian Wiedmann /* fall through to add page frag for remaining data */ 51844a71df50SFrank Blaschka } 51854a71df50SFrank Blaschka 51868d68af6aSJulian Wiedmann next_frag = skb_shinfo(skb)->nr_frags; 51874a71df50SFrank Blaschka get_page(page); 51888d68af6aSJulian Wiedmann skb_add_rx_frag(skb, next_frag, page, offset, data_len, data_len); 51894a71df50SFrank Blaschka } 51904a71df50SFrank Blaschka 5191bca51650SThomas Richter static inline int qeth_is_last_sbale(struct qdio_buffer_element *sbale) 5192bca51650SThomas Richter { 5193bca51650SThomas Richter return (sbale->eflags & SBAL_EFLAGS_LAST_ENTRY); 5194bca51650SThomas Richter } 5195bca51650SThomas Richter 51964a71df50SFrank Blaschka struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card, 5197b3332930SFrank Blaschka struct qeth_qdio_buffer *qethbuffer, 51984a71df50SFrank Blaschka struct qdio_buffer_element **__element, int *__offset, 51994a71df50SFrank Blaschka struct qeth_hdr **hdr) 52004a71df50SFrank Blaschka { 52014a71df50SFrank Blaschka struct qdio_buffer_element *element = *__element; 5202b3332930SFrank Blaschka struct qdio_buffer *buffer = qethbuffer->buffer; 52034a71df50SFrank Blaschka int offset = *__offset; 52048d68af6aSJulian Wiedmann struct sk_buff *skb; 520576b11f8eSUrsula Braun int skb_len = 0; 52064a71df50SFrank Blaschka void *data_ptr; 52074a71df50SFrank Blaschka int data_len; 52084a71df50SFrank Blaschka int headroom = 0; 52094a71df50SFrank Blaschka int use_rx_sg = 0; 52104a71df50SFrank Blaschka 52114a71df50SFrank Blaschka /* qeth_hdr must not cross element boundaries */ 5212864c17c3SJulian Wiedmann while (element->length < offset + sizeof(struct qeth_hdr)) { 52134a71df50SFrank Blaschka if (qeth_is_last_sbale(element)) 52144a71df50SFrank Blaschka return NULL; 52154a71df50SFrank Blaschka element++; 52164a71df50SFrank Blaschka offset = 0; 52174a71df50SFrank Blaschka } 52184a71df50SFrank Blaschka *hdr = element->addr + offset; 52194a71df50SFrank Blaschka 52204a71df50SFrank Blaschka offset += sizeof(struct qeth_hdr); 522176b11f8eSUrsula Braun switch ((*hdr)->hdr.l2.id) { 522276b11f8eSUrsula Braun case QETH_HEADER_TYPE_LAYER2: 52234a71df50SFrank Blaschka skb_len = (*hdr)->hdr.l2.pkt_length; 522476b11f8eSUrsula Braun break; 522576b11f8eSUrsula Braun case QETH_HEADER_TYPE_LAYER3: 52264a71df50SFrank Blaschka skb_len = (*hdr)->hdr.l3.length; 5227b403e685SFrank Blaschka headroom = ETH_HLEN; 522876b11f8eSUrsula Braun break; 522976b11f8eSUrsula Braun case QETH_HEADER_TYPE_OSN: 523076b11f8eSUrsula Braun skb_len = (*hdr)->hdr.osn.pdu_length; 523176b11f8eSUrsula Braun headroom = sizeof(struct qeth_hdr); 523276b11f8eSUrsula Braun break; 523376b11f8eSUrsula Braun default: 523476b11f8eSUrsula Braun break; 52354a71df50SFrank Blaschka } 52364a71df50SFrank Blaschka 52374a71df50SFrank Blaschka if (!skb_len) 52384a71df50SFrank Blaschka return NULL; 52394a71df50SFrank Blaschka 5240b3332930SFrank Blaschka if (((skb_len >= card->options.rx_sg_cb) && 52414a71df50SFrank Blaschka (!(card->info.type == QETH_CARD_TYPE_OSN)) && 5242b3332930SFrank Blaschka (!atomic_read(&card->force_alloc_skb))) || 52438d68af6aSJulian Wiedmann (card->options.cq == QETH_CQ_ENABLED)) 52444a71df50SFrank Blaschka use_rx_sg = 1; 52458d68af6aSJulian Wiedmann 52468d68af6aSJulian Wiedmann if (use_rx_sg && qethbuffer->rx_skb) { 52478d68af6aSJulian Wiedmann /* QETH_CQ_ENABLED only: */ 52488d68af6aSJulian Wiedmann skb = qethbuffer->rx_skb; 52498d68af6aSJulian Wiedmann qethbuffer->rx_skb = NULL; 52504a71df50SFrank Blaschka } else { 52518d68af6aSJulian Wiedmann unsigned int linear = (use_rx_sg) ? QETH_RX_PULL_LEN : skb_len; 52528d68af6aSJulian Wiedmann 525337cf05d2SJulian Wiedmann skb = napi_alloc_skb(&card->napi, linear + headroom); 52548d68af6aSJulian Wiedmann } 52554a71df50SFrank Blaschka if (!skb) 52564a71df50SFrank Blaschka goto no_mem; 52574a71df50SFrank Blaschka if (headroom) 52584a71df50SFrank Blaschka skb_reserve(skb, headroom); 52594a71df50SFrank Blaschka 52604a71df50SFrank Blaschka data_ptr = element->addr + offset; 52614a71df50SFrank Blaschka while (skb_len) { 52624a71df50SFrank Blaschka data_len = min(skb_len, (int)(element->length - offset)); 52634a71df50SFrank Blaschka if (data_len) { 52648d68af6aSJulian Wiedmann if (use_rx_sg) 52658d68af6aSJulian Wiedmann qeth_create_skb_frag(element, skb, offset, 52668d68af6aSJulian Wiedmann data_len); 52678d68af6aSJulian Wiedmann else 526859ae1d12SJohannes Berg skb_put_data(skb, data_ptr, data_len); 52694a71df50SFrank Blaschka } 52704a71df50SFrank Blaschka skb_len -= data_len; 52714a71df50SFrank Blaschka if (skb_len) { 52724a71df50SFrank Blaschka if (qeth_is_last_sbale(element)) { 5273847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "unexeob"); 5274efd5d9a4SCarsten Otte QETH_CARD_HEX(card, 2, buffer, sizeof(void *)); 52754a71df50SFrank Blaschka dev_kfree_skb_any(skb); 52764a71df50SFrank Blaschka card->stats.rx_errors++; 52774a71df50SFrank Blaschka return NULL; 52784a71df50SFrank Blaschka } 52794a71df50SFrank Blaschka element++; 52804a71df50SFrank Blaschka offset = 0; 52814a71df50SFrank Blaschka data_ptr = element->addr; 52824a71df50SFrank Blaschka } else { 52834a71df50SFrank Blaschka offset += data_len; 52844a71df50SFrank Blaschka } 52854a71df50SFrank Blaschka } 52864a71df50SFrank Blaschka *__element = element; 52874a71df50SFrank Blaschka *__offset = offset; 52884a71df50SFrank Blaschka if (use_rx_sg && card->options.performance_stats) { 52894a71df50SFrank Blaschka card->perf_stats.sg_skbs_rx++; 52904a71df50SFrank Blaschka card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags; 52914a71df50SFrank Blaschka } 52924a71df50SFrank Blaschka return skb; 52934a71df50SFrank Blaschka no_mem: 52944a71df50SFrank Blaschka if (net_ratelimit()) { 5295847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "noskbmem"); 52964a71df50SFrank Blaschka } 52974a71df50SFrank Blaschka card->stats.rx_dropped++; 52984a71df50SFrank Blaschka return NULL; 52994a71df50SFrank Blaschka } 53004a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_core_get_next_skb); 53014a71df50SFrank Blaschka 5302d73ef324SJulian Wiedmann int qeth_poll(struct napi_struct *napi, int budget) 5303d73ef324SJulian Wiedmann { 5304d73ef324SJulian Wiedmann struct qeth_card *card = container_of(napi, struct qeth_card, napi); 5305d73ef324SJulian Wiedmann int work_done = 0; 5306d73ef324SJulian Wiedmann struct qeth_qdio_buffer *buffer; 5307d73ef324SJulian Wiedmann int done; 5308d73ef324SJulian Wiedmann int new_budget = budget; 5309d73ef324SJulian Wiedmann 5310d73ef324SJulian Wiedmann if (card->options.performance_stats) { 5311d73ef324SJulian Wiedmann card->perf_stats.inbound_cnt++; 5312d73ef324SJulian Wiedmann card->perf_stats.inbound_start_time = qeth_get_micros(); 5313d73ef324SJulian Wiedmann } 5314d73ef324SJulian Wiedmann 5315d73ef324SJulian Wiedmann while (1) { 5316d73ef324SJulian Wiedmann if (!card->rx.b_count) { 5317d73ef324SJulian Wiedmann card->rx.qdio_err = 0; 5318d73ef324SJulian Wiedmann card->rx.b_count = qdio_get_next_buffers( 5319d73ef324SJulian Wiedmann card->data.ccwdev, 0, &card->rx.b_index, 5320d73ef324SJulian Wiedmann &card->rx.qdio_err); 5321d73ef324SJulian Wiedmann if (card->rx.b_count <= 0) { 5322d73ef324SJulian Wiedmann card->rx.b_count = 0; 5323d73ef324SJulian Wiedmann break; 5324d73ef324SJulian Wiedmann } 5325d73ef324SJulian Wiedmann card->rx.b_element = 5326d73ef324SJulian Wiedmann &card->qdio.in_q->bufs[card->rx.b_index] 5327d73ef324SJulian Wiedmann .buffer->element[0]; 5328d73ef324SJulian Wiedmann card->rx.e_offset = 0; 5329d73ef324SJulian Wiedmann } 5330d73ef324SJulian Wiedmann 5331d73ef324SJulian Wiedmann while (card->rx.b_count) { 5332d73ef324SJulian Wiedmann buffer = &card->qdio.in_q->bufs[card->rx.b_index]; 5333d73ef324SJulian Wiedmann if (!(card->rx.qdio_err && 5334d73ef324SJulian Wiedmann qeth_check_qdio_errors(card, buffer->buffer, 5335d73ef324SJulian Wiedmann card->rx.qdio_err, "qinerr"))) 5336d73ef324SJulian Wiedmann work_done += 5337d73ef324SJulian Wiedmann card->discipline->process_rx_buffer( 5338d73ef324SJulian Wiedmann card, new_budget, &done); 5339d73ef324SJulian Wiedmann else 5340d73ef324SJulian Wiedmann done = 1; 5341d73ef324SJulian Wiedmann 5342d73ef324SJulian Wiedmann if (done) { 5343d73ef324SJulian Wiedmann if (card->options.performance_stats) 5344d73ef324SJulian Wiedmann card->perf_stats.bufs_rec++; 5345d73ef324SJulian Wiedmann qeth_put_buffer_pool_entry(card, 5346d73ef324SJulian Wiedmann buffer->pool_entry); 5347d73ef324SJulian Wiedmann qeth_queue_input_buffer(card, card->rx.b_index); 5348d73ef324SJulian Wiedmann card->rx.b_count--; 5349d73ef324SJulian Wiedmann if (card->rx.b_count) { 5350d73ef324SJulian Wiedmann card->rx.b_index = 5351d73ef324SJulian Wiedmann (card->rx.b_index + 1) % 5352d73ef324SJulian Wiedmann QDIO_MAX_BUFFERS_PER_Q; 5353d73ef324SJulian Wiedmann card->rx.b_element = 5354d73ef324SJulian Wiedmann &card->qdio.in_q 5355d73ef324SJulian Wiedmann ->bufs[card->rx.b_index] 5356d73ef324SJulian Wiedmann .buffer->element[0]; 5357d73ef324SJulian Wiedmann card->rx.e_offset = 0; 5358d73ef324SJulian Wiedmann } 5359d73ef324SJulian Wiedmann } 5360d73ef324SJulian Wiedmann 5361d73ef324SJulian Wiedmann if (work_done >= budget) 5362d73ef324SJulian Wiedmann goto out; 5363d73ef324SJulian Wiedmann else 5364d73ef324SJulian Wiedmann new_budget = budget - work_done; 5365d73ef324SJulian Wiedmann } 5366d73ef324SJulian Wiedmann } 5367d73ef324SJulian Wiedmann 5368978759e8SJulian Wiedmann napi_complete_done(napi, work_done); 5369d73ef324SJulian Wiedmann if (qdio_start_irq(card->data.ccwdev, 0)) 5370d73ef324SJulian Wiedmann napi_schedule(&card->napi); 5371d73ef324SJulian Wiedmann out: 5372d73ef324SJulian Wiedmann if (card->options.performance_stats) 5373d73ef324SJulian Wiedmann card->perf_stats.inbound_time += qeth_get_micros() - 5374d73ef324SJulian Wiedmann card->perf_stats.inbound_start_time; 5375d73ef324SJulian Wiedmann return work_done; 5376d73ef324SJulian Wiedmann } 5377d73ef324SJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_poll); 5378d73ef324SJulian Wiedmann 5379ad3cbf61SJulian Wiedmann static int qeth_setassparms_inspect_rc(struct qeth_ipa_cmd *cmd) 5380ad3cbf61SJulian Wiedmann { 5381ad3cbf61SJulian Wiedmann if (!cmd->hdr.return_code) 5382ad3cbf61SJulian Wiedmann cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code; 5383ad3cbf61SJulian Wiedmann return cmd->hdr.return_code; 5384ad3cbf61SJulian Wiedmann } 5385ad3cbf61SJulian Wiedmann 53864666d7fbSJulian Wiedmann static int qeth_setassparms_get_caps_cb(struct qeth_card *card, 53874666d7fbSJulian Wiedmann struct qeth_reply *reply, 53884666d7fbSJulian Wiedmann unsigned long data) 53894666d7fbSJulian Wiedmann { 53904666d7fbSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 53914666d7fbSJulian Wiedmann struct qeth_ipa_caps *caps = reply->param; 53924666d7fbSJulian Wiedmann 53934666d7fbSJulian Wiedmann if (qeth_setassparms_inspect_rc(cmd)) 53944666d7fbSJulian Wiedmann return 0; 53954666d7fbSJulian Wiedmann 53964666d7fbSJulian Wiedmann caps->supported = cmd->data.setassparms.data.caps.supported; 53974666d7fbSJulian Wiedmann caps->enabled = cmd->data.setassparms.data.caps.enabled; 53984666d7fbSJulian Wiedmann return 0; 53994666d7fbSJulian Wiedmann } 54004666d7fbSJulian Wiedmann 54018f43fb00SThomas Richter int qeth_setassparms_cb(struct qeth_card *card, 54024d7def2aSThomas Richter struct qeth_reply *reply, unsigned long data) 54034d7def2aSThomas Richter { 54044d7def2aSThomas Richter struct qeth_ipa_cmd *cmd; 54054d7def2aSThomas Richter 54064d7def2aSThomas Richter QETH_CARD_TEXT(card, 4, "defadpcb"); 54074d7def2aSThomas Richter 54084d7def2aSThomas Richter cmd = (struct qeth_ipa_cmd *) data; 54094d7def2aSThomas Richter if (cmd->hdr.return_code == 0) { 54104d7def2aSThomas Richter cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code; 54114d7def2aSThomas Richter if (cmd->hdr.prot_version == QETH_PROT_IPV4) 54124d7def2aSThomas Richter card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled; 54134d7def2aSThomas Richter if (cmd->hdr.prot_version == QETH_PROT_IPV6) 54144d7def2aSThomas Richter card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled; 54154d7def2aSThomas Richter } 54164d7def2aSThomas Richter return 0; 54174d7def2aSThomas Richter } 54188f43fb00SThomas Richter EXPORT_SYMBOL_GPL(qeth_setassparms_cb); 54194d7def2aSThomas Richter 5420b475e316SThomas Richter struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *card, 54214d7def2aSThomas Richter enum qeth_ipa_funcs ipa_func, 54224d7def2aSThomas Richter __u16 cmd_code, __u16 len, 54234d7def2aSThomas Richter enum qeth_prot_versions prot) 54244d7def2aSThomas Richter { 54254d7def2aSThomas Richter struct qeth_cmd_buffer *iob; 54264d7def2aSThomas Richter struct qeth_ipa_cmd *cmd; 54274d7def2aSThomas Richter 54284d7def2aSThomas Richter QETH_CARD_TEXT(card, 4, "getasscm"); 54294d7def2aSThomas Richter iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot); 54304d7def2aSThomas Richter 54314d7def2aSThomas Richter if (iob) { 5432ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 54334d7def2aSThomas Richter cmd->data.setassparms.hdr.assist_no = ipa_func; 54344d7def2aSThomas Richter cmd->data.setassparms.hdr.length = 8 + len; 54354d7def2aSThomas Richter cmd->data.setassparms.hdr.command_code = cmd_code; 54364d7def2aSThomas Richter } 54374d7def2aSThomas Richter 54384d7def2aSThomas Richter return iob; 54394d7def2aSThomas Richter } 5440b475e316SThomas Richter EXPORT_SYMBOL_GPL(qeth_get_setassparms_cmd); 54414d7def2aSThomas Richter 5442a8155b00SKittipon Meesompop int qeth_send_simple_setassparms_prot(struct qeth_card *card, 54434d7def2aSThomas Richter enum qeth_ipa_funcs ipa_func, 5444a8155b00SKittipon Meesompop u16 cmd_code, long data, 5445a8155b00SKittipon Meesompop enum qeth_prot_versions prot) 54464d7def2aSThomas Richter { 54474d7def2aSThomas Richter int length = 0; 54484d7def2aSThomas Richter struct qeth_cmd_buffer *iob; 54494d7def2aSThomas Richter 5450a8155b00SKittipon Meesompop QETH_CARD_TEXT_(card, 4, "simassp%i", prot); 54514d7def2aSThomas Richter if (data) 54524d7def2aSThomas Richter length = sizeof(__u32); 5453a8155b00SKittipon Meesompop iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code, length, prot); 54544d7def2aSThomas Richter if (!iob) 54554d7def2aSThomas Richter return -ENOMEM; 54564fa55fa9SJulian Wiedmann 54574fa55fa9SJulian Wiedmann __ipa_cmd(iob)->data.setassparms.data.flags_32bit = (__u32) data; 54584fa55fa9SJulian Wiedmann return qeth_send_ipa_cmd(card, iob, qeth_setassparms_cb, NULL); 54594d7def2aSThomas Richter } 5460a8155b00SKittipon Meesompop EXPORT_SYMBOL_GPL(qeth_send_simple_setassparms_prot); 54614d7def2aSThomas Richter 54624a71df50SFrank Blaschka static void qeth_unregister_dbf_views(void) 54634a71df50SFrank Blaschka { 5464d11ba0c4SPeter Tiedemann int x; 5465d11ba0c4SPeter Tiedemann for (x = 0; x < QETH_DBF_INFOS; x++) { 5466d11ba0c4SPeter Tiedemann debug_unregister(qeth_dbf[x].id); 5467d11ba0c4SPeter Tiedemann qeth_dbf[x].id = NULL; 5468d11ba0c4SPeter Tiedemann } 54694a71df50SFrank Blaschka } 54704a71df50SFrank Blaschka 54718e96c51cSCarsten Otte void qeth_dbf_longtext(debug_info_t *id, int level, char *fmt, ...) 5472cd023216SPeter Tiedemann { 5473cd023216SPeter Tiedemann char dbf_txt_buf[32]; 5474345aa66eSPeter Tiedemann va_list args; 5475cd023216SPeter Tiedemann 54768e6a8285SHendrik Brueckner if (!debug_level_enabled(id, level)) 5477cd023216SPeter Tiedemann return; 5478345aa66eSPeter Tiedemann va_start(args, fmt); 5479345aa66eSPeter Tiedemann vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args); 5480345aa66eSPeter Tiedemann va_end(args); 54818e96c51cSCarsten Otte debug_text_event(id, level, dbf_txt_buf); 5482cd023216SPeter Tiedemann } 5483cd023216SPeter Tiedemann EXPORT_SYMBOL_GPL(qeth_dbf_longtext); 5484cd023216SPeter Tiedemann 54854a71df50SFrank Blaschka static int qeth_register_dbf_views(void) 54864a71df50SFrank Blaschka { 5487d11ba0c4SPeter Tiedemann int ret; 5488d11ba0c4SPeter Tiedemann int x; 54894a71df50SFrank Blaschka 5490d11ba0c4SPeter Tiedemann for (x = 0; x < QETH_DBF_INFOS; x++) { 5491d11ba0c4SPeter Tiedemann /* register the areas */ 5492d11ba0c4SPeter Tiedemann qeth_dbf[x].id = debug_register(qeth_dbf[x].name, 5493d11ba0c4SPeter Tiedemann qeth_dbf[x].pages, 5494d11ba0c4SPeter Tiedemann qeth_dbf[x].areas, 5495d11ba0c4SPeter Tiedemann qeth_dbf[x].len); 5496d11ba0c4SPeter Tiedemann if (qeth_dbf[x].id == NULL) { 54974a71df50SFrank Blaschka qeth_unregister_dbf_views(); 54984a71df50SFrank Blaschka return -ENOMEM; 54994a71df50SFrank Blaschka } 55004a71df50SFrank Blaschka 5501d11ba0c4SPeter Tiedemann /* register a view */ 5502d11ba0c4SPeter Tiedemann ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view); 5503d11ba0c4SPeter Tiedemann if (ret) { 5504d11ba0c4SPeter Tiedemann qeth_unregister_dbf_views(); 5505d11ba0c4SPeter Tiedemann return ret; 5506d11ba0c4SPeter Tiedemann } 55074a71df50SFrank Blaschka 5508d11ba0c4SPeter Tiedemann /* set a passing level */ 5509d11ba0c4SPeter Tiedemann debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level); 5510d11ba0c4SPeter Tiedemann } 55114a71df50SFrank Blaschka 55124a71df50SFrank Blaschka return 0; 55134a71df50SFrank Blaschka } 55144a71df50SFrank Blaschka 5515a70fee3bSJulian Wiedmann static DEFINE_MUTEX(qeth_mod_mutex); /* for synchronized module loading */ 5516a70fee3bSJulian Wiedmann 55174a71df50SFrank Blaschka int qeth_core_load_discipline(struct qeth_card *card, 55184a71df50SFrank Blaschka enum qeth_discipline_id discipline) 55194a71df50SFrank Blaschka { 55202022e00cSFrank Blaschka mutex_lock(&qeth_mod_mutex); 55214a71df50SFrank Blaschka switch (discipline) { 55224a71df50SFrank Blaschka case QETH_DISCIPLINE_LAYER3: 5523c041f2d4SSebastian Ott card->discipline = try_then_request_module( 5524c041f2d4SSebastian Ott symbol_get(qeth_l3_discipline), "qeth_l3"); 55254a71df50SFrank Blaschka break; 55264a71df50SFrank Blaschka case QETH_DISCIPLINE_LAYER2: 5527c041f2d4SSebastian Ott card->discipline = try_then_request_module( 5528c041f2d4SSebastian Ott symbol_get(qeth_l2_discipline), "qeth_l2"); 55294a71df50SFrank Blaschka break; 5530c70eb09dSJulian Wiedmann default: 5531c70eb09dSJulian Wiedmann break; 55324a71df50SFrank Blaschka } 5533a70fee3bSJulian Wiedmann mutex_unlock(&qeth_mod_mutex); 5534c70eb09dSJulian Wiedmann 5535c041f2d4SSebastian Ott if (!card->discipline) { 553674eacdb9SFrank Blaschka dev_err(&card->gdev->dev, "There is no kernel module to " 553774eacdb9SFrank Blaschka "support discipline %d\n", discipline); 5538a70fee3bSJulian Wiedmann return -EINVAL; 55394a71df50SFrank Blaschka } 5540a70fee3bSJulian Wiedmann 5541c1a935f6SJulian Wiedmann card->options.layer = discipline; 5542a70fee3bSJulian Wiedmann return 0; 55434a71df50SFrank Blaschka } 55444a71df50SFrank Blaschka 55454a71df50SFrank Blaschka void qeth_core_free_discipline(struct qeth_card *card) 55464a71df50SFrank Blaschka { 55474fda3354SJulian Wiedmann if (IS_LAYER2(card)) 5548c041f2d4SSebastian Ott symbol_put(qeth_l2_discipline); 55494a71df50SFrank Blaschka else 5550c041f2d4SSebastian Ott symbol_put(qeth_l3_discipline); 5551c1a935f6SJulian Wiedmann card->options.layer = QETH_DISCIPLINE_UNDETERMINED; 5552c041f2d4SSebastian Ott card->discipline = NULL; 55534a71df50SFrank Blaschka } 55544a71df50SFrank Blaschka 55552d2ebb3eSJulian Wiedmann const struct device_type qeth_generic_devtype = { 5556b7169c51SSebastian Ott .name = "qeth_generic", 5557b7169c51SSebastian Ott .groups = qeth_generic_attr_groups, 5558b7169c51SSebastian Ott }; 55592d2ebb3eSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_generic_devtype); 55602d2ebb3eSJulian Wiedmann 5561b7169c51SSebastian Ott static const struct device_type qeth_osn_devtype = { 5562b7169c51SSebastian Ott .name = "qeth_osn", 5563b7169c51SSebastian Ott .groups = qeth_osn_attr_groups, 5564b7169c51SSebastian Ott }; 5565b7169c51SSebastian Ott 5566819dc537SStefan Raspl #define DBF_NAME_LEN 20 5567819dc537SStefan Raspl 5568819dc537SStefan Raspl struct qeth_dbf_entry { 5569819dc537SStefan Raspl char dbf_name[DBF_NAME_LEN]; 5570819dc537SStefan Raspl debug_info_t *dbf_info; 5571819dc537SStefan Raspl struct list_head dbf_list; 5572819dc537SStefan Raspl }; 5573819dc537SStefan Raspl 5574819dc537SStefan Raspl static LIST_HEAD(qeth_dbf_list); 5575819dc537SStefan Raspl static DEFINE_MUTEX(qeth_dbf_list_mutex); 5576819dc537SStefan Raspl 5577819dc537SStefan Raspl static debug_info_t *qeth_get_dbf_entry(char *name) 5578819dc537SStefan Raspl { 5579819dc537SStefan Raspl struct qeth_dbf_entry *entry; 5580819dc537SStefan Raspl debug_info_t *rc = NULL; 5581819dc537SStefan Raspl 5582819dc537SStefan Raspl mutex_lock(&qeth_dbf_list_mutex); 5583819dc537SStefan Raspl list_for_each_entry(entry, &qeth_dbf_list, dbf_list) { 5584819dc537SStefan Raspl if (strcmp(entry->dbf_name, name) == 0) { 5585819dc537SStefan Raspl rc = entry->dbf_info; 5586819dc537SStefan Raspl break; 5587819dc537SStefan Raspl } 5588819dc537SStefan Raspl } 5589819dc537SStefan Raspl mutex_unlock(&qeth_dbf_list_mutex); 5590819dc537SStefan Raspl return rc; 5591819dc537SStefan Raspl } 5592819dc537SStefan Raspl 5593819dc537SStefan Raspl static int qeth_add_dbf_entry(struct qeth_card *card, char *name) 5594819dc537SStefan Raspl { 5595819dc537SStefan Raspl struct qeth_dbf_entry *new_entry; 5596819dc537SStefan Raspl 5597819dc537SStefan Raspl card->debug = debug_register(name, 2, 1, 8); 5598819dc537SStefan Raspl if (!card->debug) { 5599819dc537SStefan Raspl QETH_DBF_TEXT_(SETUP, 2, "%s", "qcdbf"); 5600819dc537SStefan Raspl goto err; 5601819dc537SStefan Raspl } 5602819dc537SStefan Raspl if (debug_register_view(card->debug, &debug_hex_ascii_view)) 5603819dc537SStefan Raspl goto err_dbg; 5604819dc537SStefan Raspl new_entry = kzalloc(sizeof(struct qeth_dbf_entry), GFP_KERNEL); 5605819dc537SStefan Raspl if (!new_entry) 5606819dc537SStefan Raspl goto err_dbg; 5607819dc537SStefan Raspl strncpy(new_entry->dbf_name, name, DBF_NAME_LEN); 5608819dc537SStefan Raspl new_entry->dbf_info = card->debug; 5609819dc537SStefan Raspl mutex_lock(&qeth_dbf_list_mutex); 5610819dc537SStefan Raspl list_add(&new_entry->dbf_list, &qeth_dbf_list); 5611819dc537SStefan Raspl mutex_unlock(&qeth_dbf_list_mutex); 5612819dc537SStefan Raspl 5613819dc537SStefan Raspl return 0; 5614819dc537SStefan Raspl 5615819dc537SStefan Raspl err_dbg: 5616819dc537SStefan Raspl debug_unregister(card->debug); 5617819dc537SStefan Raspl err: 5618819dc537SStefan Raspl return -ENOMEM; 5619819dc537SStefan Raspl } 5620819dc537SStefan Raspl 5621819dc537SStefan Raspl static void qeth_clear_dbf_list(void) 5622819dc537SStefan Raspl { 5623819dc537SStefan Raspl struct qeth_dbf_entry *entry, *tmp; 5624819dc537SStefan Raspl 5625819dc537SStefan Raspl mutex_lock(&qeth_dbf_list_mutex); 5626819dc537SStefan Raspl list_for_each_entry_safe(entry, tmp, &qeth_dbf_list, dbf_list) { 5627819dc537SStefan Raspl list_del(&entry->dbf_list); 5628819dc537SStefan Raspl debug_unregister(entry->dbf_info); 5629819dc537SStefan Raspl kfree(entry); 5630819dc537SStefan Raspl } 5631819dc537SStefan Raspl mutex_unlock(&qeth_dbf_list_mutex); 5632819dc537SStefan Raspl } 5633819dc537SStefan Raspl 5634d3d1b205SJulian Wiedmann static struct net_device *qeth_alloc_netdev(struct qeth_card *card) 5635d3d1b205SJulian Wiedmann { 5636d3d1b205SJulian Wiedmann struct net_device *dev; 5637d3d1b205SJulian Wiedmann 5638d3d1b205SJulian Wiedmann switch (card->info.type) { 5639d3d1b205SJulian Wiedmann case QETH_CARD_TYPE_IQD: 5640d3d1b205SJulian Wiedmann dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN, ether_setup); 5641d3d1b205SJulian Wiedmann break; 5642d3d1b205SJulian Wiedmann case QETH_CARD_TYPE_OSN: 5643d3d1b205SJulian Wiedmann dev = alloc_netdev(0, "osn%d", NET_NAME_UNKNOWN, ether_setup); 5644d3d1b205SJulian Wiedmann break; 5645d3d1b205SJulian Wiedmann default: 5646d3d1b205SJulian Wiedmann dev = alloc_etherdev(0); 5647d3d1b205SJulian Wiedmann } 5648d3d1b205SJulian Wiedmann 5649d3d1b205SJulian Wiedmann if (!dev) 5650d3d1b205SJulian Wiedmann return NULL; 5651d3d1b205SJulian Wiedmann 5652d3d1b205SJulian Wiedmann dev->ml_priv = card; 5653d3d1b205SJulian Wiedmann dev->watchdog_timeo = QETH_TX_TIMEOUT; 565472f219daSJulian Wiedmann dev->min_mtu = IS_OSN(card) ? 64 : 576; 56558ce7a9e0SJulian Wiedmann /* initialized when device first goes online: */ 56568ce7a9e0SJulian Wiedmann dev->max_mtu = 0; 56578ce7a9e0SJulian Wiedmann dev->mtu = 0; 5658d3d1b205SJulian Wiedmann SET_NETDEV_DEV(dev, &card->gdev->dev); 5659d3d1b205SJulian Wiedmann netif_carrier_off(dev); 56605f89eca5SJulian Wiedmann 56615f89eca5SJulian Wiedmann if (!IS_OSN(card)) { 56625f89eca5SJulian Wiedmann dev->priv_flags &= ~IFF_TX_SKB_SHARING; 56635f89eca5SJulian Wiedmann dev->hw_features |= NETIF_F_SG; 56645f89eca5SJulian Wiedmann dev->vlan_features |= NETIF_F_SG; 566504db741dSJulian Wiedmann if (IS_IQD(card)) 566604db741dSJulian Wiedmann dev->features |= NETIF_F_SG; 56675f89eca5SJulian Wiedmann } 56685f89eca5SJulian Wiedmann 5669d3d1b205SJulian Wiedmann return dev; 5670d3d1b205SJulian Wiedmann } 5671d3d1b205SJulian Wiedmann 5672d3d1b205SJulian Wiedmann struct net_device *qeth_clone_netdev(struct net_device *orig) 5673d3d1b205SJulian Wiedmann { 5674d3d1b205SJulian Wiedmann struct net_device *clone = qeth_alloc_netdev(orig->ml_priv); 5675d3d1b205SJulian Wiedmann 5676d3d1b205SJulian Wiedmann if (!clone) 5677d3d1b205SJulian Wiedmann return NULL; 5678d3d1b205SJulian Wiedmann 5679d3d1b205SJulian Wiedmann clone->dev_port = orig->dev_port; 5680d3d1b205SJulian Wiedmann return clone; 5681d3d1b205SJulian Wiedmann } 5682d3d1b205SJulian Wiedmann 56834a71df50SFrank Blaschka static int qeth_core_probe_device(struct ccwgroup_device *gdev) 56844a71df50SFrank Blaschka { 56854a71df50SFrank Blaschka struct qeth_card *card; 56864a71df50SFrank Blaschka struct device *dev; 56874a71df50SFrank Blaschka int rc; 5688c70eb09dSJulian Wiedmann enum qeth_discipline_id enforced_disc; 5689819dc537SStefan Raspl char dbf_name[DBF_NAME_LEN]; 56904a71df50SFrank Blaschka 5691d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "probedev"); 56924a71df50SFrank Blaschka 56934a71df50SFrank Blaschka dev = &gdev->dev; 56944a71df50SFrank Blaschka if (!get_device(dev)) 56954a71df50SFrank Blaschka return -ENODEV; 56964a71df50SFrank Blaschka 56972a0217d5SKay Sievers QETH_DBF_TEXT_(SETUP, 2, "%s", dev_name(&gdev->dev)); 56984a71df50SFrank Blaschka 5699121ca39aSJulian Wiedmann card = qeth_alloc_card(gdev); 57004a71df50SFrank Blaschka if (!card) { 5701d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM); 57024a71df50SFrank Blaschka rc = -ENOMEM; 57034a71df50SFrank Blaschka goto err_dev; 57044a71df50SFrank Blaschka } 5705af039068SCarsten Otte 5706af039068SCarsten Otte snprintf(dbf_name, sizeof(dbf_name), "qeth_card_%s", 5707af039068SCarsten Otte dev_name(&gdev->dev)); 5708819dc537SStefan Raspl card->debug = qeth_get_dbf_entry(dbf_name); 5709af039068SCarsten Otte if (!card->debug) { 5710819dc537SStefan Raspl rc = qeth_add_dbf_entry(card, dbf_name); 5711819dc537SStefan Raspl if (rc) 5712af039068SCarsten Otte goto err_card; 5713af039068SCarsten Otte } 5714af039068SCarsten Otte 571595f4d8b7SJulian Wiedmann qeth_setup_card(card); 571695f4d8b7SJulian Wiedmann qeth_update_from_chp_desc(card); 57174a71df50SFrank Blaschka 5718d3d1b205SJulian Wiedmann card->dev = qeth_alloc_netdev(card); 5719778b1ac7SJulian Wiedmann if (!card->dev) { 5720778b1ac7SJulian Wiedmann rc = -ENOMEM; 5721d3d1b205SJulian Wiedmann goto err_card; 5722778b1ac7SJulian Wiedmann } 5723d3d1b205SJulian Wiedmann 5724c70eb09dSJulian Wiedmann qeth_determine_capabilities(card); 5725c70eb09dSJulian Wiedmann enforced_disc = qeth_enforce_discipline(card); 5726c70eb09dSJulian Wiedmann switch (enforced_disc) { 5727c70eb09dSJulian Wiedmann case QETH_DISCIPLINE_UNDETERMINED: 5728c70eb09dSJulian Wiedmann gdev->dev.type = &qeth_generic_devtype; 5729c70eb09dSJulian Wiedmann break; 5730c70eb09dSJulian Wiedmann default: 5731c70eb09dSJulian Wiedmann card->info.layer_enforced = true; 5732c70eb09dSJulian Wiedmann rc = qeth_core_load_discipline(card, enforced_disc); 57335113fec0SUrsula Braun if (rc) 5734d3d1b205SJulian Wiedmann goto err_load; 57352d2ebb3eSJulian Wiedmann 57362d2ebb3eSJulian Wiedmann gdev->dev.type = (card->info.type != QETH_CARD_TYPE_OSN) 57372d2ebb3eSJulian Wiedmann ? card->discipline->devtype 57382d2ebb3eSJulian Wiedmann : &qeth_osn_devtype; 5739c041f2d4SSebastian Ott rc = card->discipline->setup(card->gdev); 57405113fec0SUrsula Braun if (rc) 57415113fec0SUrsula Braun goto err_disc; 57422d2ebb3eSJulian Wiedmann break; 57434a71df50SFrank Blaschka } 57444a71df50SFrank Blaschka 57454a71df50SFrank Blaschka return 0; 57464a71df50SFrank Blaschka 57475113fec0SUrsula Braun err_disc: 57485113fec0SUrsula Braun qeth_core_free_discipline(card); 5749d3d1b205SJulian Wiedmann err_load: 5750d3d1b205SJulian Wiedmann free_netdev(card->dev); 57514a71df50SFrank Blaschka err_card: 57524a71df50SFrank Blaschka qeth_core_free_card(card); 57534a71df50SFrank Blaschka err_dev: 57544a71df50SFrank Blaschka put_device(dev); 57554a71df50SFrank Blaschka return rc; 57564a71df50SFrank Blaschka } 57574a71df50SFrank Blaschka 57584a71df50SFrank Blaschka static void qeth_core_remove_device(struct ccwgroup_device *gdev) 57594a71df50SFrank Blaschka { 57604a71df50SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 57614a71df50SFrank Blaschka 576228a7e4c9SUrsula Braun QETH_DBF_TEXT(SETUP, 2, "removedv"); 57634a71df50SFrank Blaschka 5764c041f2d4SSebastian Ott if (card->discipline) { 5765c041f2d4SSebastian Ott card->discipline->remove(gdev); 57669dc48cccSUrsula Braun qeth_core_free_discipline(card); 57679dc48cccSUrsula Braun } 57689dc48cccSUrsula Braun 5769d3d1b205SJulian Wiedmann free_netdev(card->dev); 57704a71df50SFrank Blaschka qeth_core_free_card(card); 57714a71df50SFrank Blaschka put_device(&gdev->dev); 57724a71df50SFrank Blaschka } 57734a71df50SFrank Blaschka 57744a71df50SFrank Blaschka static int qeth_core_set_online(struct ccwgroup_device *gdev) 57754a71df50SFrank Blaschka { 57764a71df50SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 57774a71df50SFrank Blaschka int rc = 0; 5778c70eb09dSJulian Wiedmann enum qeth_discipline_id def_discipline; 57794a71df50SFrank Blaschka 5780c041f2d4SSebastian Ott if (!card->discipline) { 57814a71df50SFrank Blaschka if (card->info.type == QETH_CARD_TYPE_IQD) 57824a71df50SFrank Blaschka def_discipline = QETH_DISCIPLINE_LAYER3; 57834a71df50SFrank Blaschka else 57844a71df50SFrank Blaschka def_discipline = QETH_DISCIPLINE_LAYER2; 57854a71df50SFrank Blaschka rc = qeth_core_load_discipline(card, def_discipline); 57864a71df50SFrank Blaschka if (rc) 57874a71df50SFrank Blaschka goto err; 5788c041f2d4SSebastian Ott rc = card->discipline->setup(card->gdev); 57899111e788SUrsula Braun if (rc) { 57909111e788SUrsula Braun qeth_core_free_discipline(card); 57914a71df50SFrank Blaschka goto err; 57924a71df50SFrank Blaschka } 57939111e788SUrsula Braun } 5794c041f2d4SSebastian Ott rc = card->discipline->set_online(gdev); 57954a71df50SFrank Blaschka err: 57964a71df50SFrank Blaschka return rc; 57974a71df50SFrank Blaschka } 57984a71df50SFrank Blaschka 57994a71df50SFrank Blaschka static int qeth_core_set_offline(struct ccwgroup_device *gdev) 58004a71df50SFrank Blaschka { 58014a71df50SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 5802c041f2d4SSebastian Ott return card->discipline->set_offline(gdev); 58034a71df50SFrank Blaschka } 58044a71df50SFrank Blaschka 58054a71df50SFrank Blaschka static void qeth_core_shutdown(struct ccwgroup_device *gdev) 58064a71df50SFrank Blaschka { 58074a71df50SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 580896d1bb53SJulian Wiedmann qeth_set_allowed_threads(card, 0, 1); 580996d1bb53SJulian Wiedmann if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap) 581096d1bb53SJulian Wiedmann qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); 581196d1bb53SJulian Wiedmann qeth_qdio_clear_card(card, 0); 581296d1bb53SJulian Wiedmann qeth_clear_qdio_buffers(card); 581396d1bb53SJulian Wiedmann qdio_free(CARD_DDEV(card)); 58144a71df50SFrank Blaschka } 58154a71df50SFrank Blaschka 5816bbcfcdc8SFrank Blaschka static int qeth_core_freeze(struct ccwgroup_device *gdev) 5817bbcfcdc8SFrank Blaschka { 5818bbcfcdc8SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 5819c041f2d4SSebastian Ott if (card->discipline && card->discipline->freeze) 5820c041f2d4SSebastian Ott return card->discipline->freeze(gdev); 5821bbcfcdc8SFrank Blaschka return 0; 5822bbcfcdc8SFrank Blaschka } 5823bbcfcdc8SFrank Blaschka 5824bbcfcdc8SFrank Blaschka static int qeth_core_thaw(struct ccwgroup_device *gdev) 5825bbcfcdc8SFrank Blaschka { 5826bbcfcdc8SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 5827c041f2d4SSebastian Ott if (card->discipline && card->discipline->thaw) 5828c041f2d4SSebastian Ott return card->discipline->thaw(gdev); 5829bbcfcdc8SFrank Blaschka return 0; 5830bbcfcdc8SFrank Blaschka } 5831bbcfcdc8SFrank Blaschka 5832bbcfcdc8SFrank Blaschka static int qeth_core_restore(struct ccwgroup_device *gdev) 5833bbcfcdc8SFrank Blaschka { 5834bbcfcdc8SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 5835c041f2d4SSebastian Ott if (card->discipline && card->discipline->restore) 5836c041f2d4SSebastian Ott return card->discipline->restore(gdev); 5837bbcfcdc8SFrank Blaschka return 0; 5838bbcfcdc8SFrank Blaschka } 5839bbcfcdc8SFrank Blaschka 584036369569SGreg Kroah-Hartman static ssize_t group_store(struct device_driver *ddrv, const char *buf, 584136369569SGreg Kroah-Hartman size_t count) 58424a71df50SFrank Blaschka { 58434a71df50SFrank Blaschka int err; 58444a71df50SFrank Blaschka 58456d8769abSJulian Wiedmann err = ccwgroup_create_dev(qeth_core_root_dev, to_ccwgroupdrv(ddrv), 3, 58466d8769abSJulian Wiedmann buf); 5847b7169c51SSebastian Ott 5848b7169c51SSebastian Ott return err ? err : count; 5849b7169c51SSebastian Ott } 585036369569SGreg Kroah-Hartman static DRIVER_ATTR_WO(group); 58514a71df50SFrank Blaschka 5852f47e2256SSebastian Ott static struct attribute *qeth_drv_attrs[] = { 5853f47e2256SSebastian Ott &driver_attr_group.attr, 5854f47e2256SSebastian Ott NULL, 5855f47e2256SSebastian Ott }; 5856f47e2256SSebastian Ott static struct attribute_group qeth_drv_attr_group = { 5857f47e2256SSebastian Ott .attrs = qeth_drv_attrs, 5858f47e2256SSebastian Ott }; 5859f47e2256SSebastian Ott static const struct attribute_group *qeth_drv_attr_groups[] = { 5860f47e2256SSebastian Ott &qeth_drv_attr_group, 5861f47e2256SSebastian Ott NULL, 5862f47e2256SSebastian Ott }; 5863f47e2256SSebastian Ott 58646d8769abSJulian Wiedmann static struct ccwgroup_driver qeth_core_ccwgroup_driver = { 58656d8769abSJulian Wiedmann .driver = { 58666d8769abSJulian Wiedmann .groups = qeth_drv_attr_groups, 58676d8769abSJulian Wiedmann .owner = THIS_MODULE, 58686d8769abSJulian Wiedmann .name = "qeth", 58696d8769abSJulian Wiedmann }, 58706d8769abSJulian Wiedmann .ccw_driver = &qeth_ccw_driver, 58716d8769abSJulian Wiedmann .setup = qeth_core_probe_device, 58726d8769abSJulian Wiedmann .remove = qeth_core_remove_device, 58736d8769abSJulian Wiedmann .set_online = qeth_core_set_online, 58746d8769abSJulian Wiedmann .set_offline = qeth_core_set_offline, 58756d8769abSJulian Wiedmann .shutdown = qeth_core_shutdown, 58766d8769abSJulian Wiedmann .prepare = NULL, 58776d8769abSJulian Wiedmann .complete = NULL, 58786d8769abSJulian Wiedmann .freeze = qeth_core_freeze, 58796d8769abSJulian Wiedmann .thaw = qeth_core_thaw, 58806d8769abSJulian Wiedmann .restore = qeth_core_restore, 58816d8769abSJulian Wiedmann }; 58826d8769abSJulian Wiedmann 5883d7d18da1SJulian Wiedmann struct qeth_card *qeth_get_card_by_busid(char *bus_id) 5884d7d18da1SJulian Wiedmann { 5885d7d18da1SJulian Wiedmann struct ccwgroup_device *gdev; 5886d7d18da1SJulian Wiedmann struct qeth_card *card; 5887d7d18da1SJulian Wiedmann 5888d7d18da1SJulian Wiedmann gdev = get_ccwgroupdev_by_busid(&qeth_core_ccwgroup_driver, bus_id); 5889d7d18da1SJulian Wiedmann if (!gdev) 5890d7d18da1SJulian Wiedmann return NULL; 5891d7d18da1SJulian Wiedmann 5892d7d18da1SJulian Wiedmann card = dev_get_drvdata(&gdev->dev); 5893d7d18da1SJulian Wiedmann put_device(&gdev->dev); 5894d7d18da1SJulian Wiedmann return card; 5895d7d18da1SJulian Wiedmann } 5896d7d18da1SJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_get_card_by_busid); 5897d7d18da1SJulian Wiedmann 5898942d6984SJulian Wiedmann int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) 5899942d6984SJulian Wiedmann { 5900942d6984SJulian Wiedmann struct qeth_card *card = dev->ml_priv; 5901942d6984SJulian Wiedmann struct mii_ioctl_data *mii_data; 5902942d6984SJulian Wiedmann int rc = 0; 5903942d6984SJulian Wiedmann 5904942d6984SJulian Wiedmann if (!card) 5905942d6984SJulian Wiedmann return -ENODEV; 5906942d6984SJulian Wiedmann 5907942d6984SJulian Wiedmann if (card->info.type == QETH_CARD_TYPE_OSN) 5908942d6984SJulian Wiedmann return -EPERM; 5909942d6984SJulian Wiedmann 5910942d6984SJulian Wiedmann switch (cmd) { 5911942d6984SJulian Wiedmann case SIOC_QETH_ADP_SET_SNMP_CONTROL: 5912942d6984SJulian Wiedmann rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data); 5913942d6984SJulian Wiedmann break; 5914942d6984SJulian Wiedmann case SIOC_QETH_GET_CARD_TYPE: 5915942d6984SJulian Wiedmann if ((card->info.type == QETH_CARD_TYPE_OSD || 5916942d6984SJulian Wiedmann card->info.type == QETH_CARD_TYPE_OSM || 5917942d6984SJulian Wiedmann card->info.type == QETH_CARD_TYPE_OSX) && 5918942d6984SJulian Wiedmann !card->info.guestlan) 5919942d6984SJulian Wiedmann return 1; 5920942d6984SJulian Wiedmann else 5921942d6984SJulian Wiedmann return 0; 5922942d6984SJulian Wiedmann case SIOCGMIIPHY: 5923942d6984SJulian Wiedmann mii_data = if_mii(rq); 5924942d6984SJulian Wiedmann mii_data->phy_id = 0; 5925942d6984SJulian Wiedmann break; 5926942d6984SJulian Wiedmann case SIOCGMIIREG: 5927942d6984SJulian Wiedmann mii_data = if_mii(rq); 5928942d6984SJulian Wiedmann if (mii_data->phy_id != 0) 5929942d6984SJulian Wiedmann rc = -EINVAL; 5930942d6984SJulian Wiedmann else 5931942d6984SJulian Wiedmann mii_data->val_out = qeth_mdio_read(dev, 5932942d6984SJulian Wiedmann mii_data->phy_id, mii_data->reg_num); 5933942d6984SJulian Wiedmann break; 5934942d6984SJulian Wiedmann case SIOC_QETH_QUERY_OAT: 5935942d6984SJulian Wiedmann rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data); 5936942d6984SJulian Wiedmann break; 5937942d6984SJulian Wiedmann default: 5938942d6984SJulian Wiedmann if (card->discipline->do_ioctl) 5939942d6984SJulian Wiedmann rc = card->discipline->do_ioctl(dev, rq, cmd); 5940942d6984SJulian Wiedmann else 5941942d6984SJulian Wiedmann rc = -EOPNOTSUPP; 5942942d6984SJulian Wiedmann } 5943942d6984SJulian Wiedmann if (rc) 5944942d6984SJulian Wiedmann QETH_CARD_TEXT_(card, 2, "ioce%x", rc); 5945942d6984SJulian Wiedmann return rc; 5946942d6984SJulian Wiedmann } 5947942d6984SJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_do_ioctl); 5948942d6984SJulian Wiedmann 59494a71df50SFrank Blaschka static struct { 59504a71df50SFrank Blaschka const char str[ETH_GSTRING_LEN]; 59514a71df50SFrank Blaschka } qeth_ethtool_stats_keys[] = { 59524a71df50SFrank Blaschka /* 0 */{"rx skbs"}, 59534a71df50SFrank Blaschka {"rx buffers"}, 59544a71df50SFrank Blaschka {"tx skbs"}, 59554a71df50SFrank Blaschka {"tx buffers"}, 59564a71df50SFrank Blaschka {"tx skbs no packing"}, 59574a71df50SFrank Blaschka {"tx buffers no packing"}, 59584a71df50SFrank Blaschka {"tx skbs packing"}, 59594a71df50SFrank Blaschka {"tx buffers packing"}, 59604a71df50SFrank Blaschka {"tx sg skbs"}, 5961d2a274b2SJulian Wiedmann {"tx buffer elements"}, 59624a71df50SFrank Blaschka /* 10 */{"rx sg skbs"}, 59634a71df50SFrank Blaschka {"rx sg frags"}, 59644a71df50SFrank Blaschka {"rx sg page allocs"}, 59654a71df50SFrank Blaschka {"tx large kbytes"}, 59664a71df50SFrank Blaschka {"tx large count"}, 59674a71df50SFrank Blaschka {"tx pk state ch n->p"}, 59684a71df50SFrank Blaschka {"tx pk state ch p->n"}, 59694a71df50SFrank Blaschka {"tx pk watermark low"}, 59704a71df50SFrank Blaschka {"tx pk watermark high"}, 59714a71df50SFrank Blaschka {"queue 0 buffer usage"}, 59724a71df50SFrank Blaschka /* 20 */{"queue 1 buffer usage"}, 59734a71df50SFrank Blaschka {"queue 2 buffer usage"}, 59744a71df50SFrank Blaschka {"queue 3 buffer usage"}, 5975a1c3ed4cSFrank Blaschka {"rx poll time"}, 5976a1c3ed4cSFrank Blaschka {"rx poll count"}, 59774a71df50SFrank Blaschka {"rx do_QDIO time"}, 59784a71df50SFrank Blaschka {"rx do_QDIO count"}, 59794a71df50SFrank Blaschka {"tx handler time"}, 59804a71df50SFrank Blaschka {"tx handler count"}, 59814a71df50SFrank Blaschka {"tx time"}, 59824a71df50SFrank Blaschka /* 30 */{"tx count"}, 59834a71df50SFrank Blaschka {"tx do_QDIO time"}, 59844a71df50SFrank Blaschka {"tx do_QDIO count"}, 5985f61a0d05SFrank Blaschka {"tx csum"}, 5986c3b4a740SFrank Blaschka {"tx lin"}, 59876059c905SEugene Crosser {"tx linfail"}, 59880da9581dSEinar Lueck {"cq handler count"}, 59893aade31bSKittipon Meesompop {"cq handler time"}, 59903aade31bSKittipon Meesompop {"rx csum"} 59914a71df50SFrank Blaschka }; 59924a71df50SFrank Blaschka 5993df8b4ec8SBen Hutchings int qeth_core_get_sset_count(struct net_device *dev, int stringset) 59944a71df50SFrank Blaschka { 5995df8b4ec8SBen Hutchings switch (stringset) { 5996df8b4ec8SBen Hutchings case ETH_SS_STATS: 59974a71df50SFrank Blaschka return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN); 5998df8b4ec8SBen Hutchings default: 5999df8b4ec8SBen Hutchings return -EINVAL; 60004a71df50SFrank Blaschka } 6001df8b4ec8SBen Hutchings } 6002df8b4ec8SBen Hutchings EXPORT_SYMBOL_GPL(qeth_core_get_sset_count); 60034a71df50SFrank Blaschka 60044a71df50SFrank Blaschka void qeth_core_get_ethtool_stats(struct net_device *dev, 60054a71df50SFrank Blaschka struct ethtool_stats *stats, u64 *data) 60064a71df50SFrank Blaschka { 6007509e2562SHeiko Carstens struct qeth_card *card = dev->ml_priv; 60084a71df50SFrank Blaschka data[0] = card->stats.rx_packets - 60094a71df50SFrank Blaschka card->perf_stats.initial_rx_packets; 60104a71df50SFrank Blaschka data[1] = card->perf_stats.bufs_rec; 60114a71df50SFrank Blaschka data[2] = card->stats.tx_packets - 60124a71df50SFrank Blaschka card->perf_stats.initial_tx_packets; 60134a71df50SFrank Blaschka data[3] = card->perf_stats.bufs_sent; 60144a71df50SFrank Blaschka data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets 60154a71df50SFrank Blaschka - card->perf_stats.skbs_sent_pack; 60164a71df50SFrank Blaschka data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack; 60174a71df50SFrank Blaschka data[6] = card->perf_stats.skbs_sent_pack; 60184a71df50SFrank Blaschka data[7] = card->perf_stats.bufs_sent_pack; 60194a71df50SFrank Blaschka data[8] = card->perf_stats.sg_skbs_sent; 6020d2a274b2SJulian Wiedmann data[9] = card->perf_stats.buf_elements_sent; 60214a71df50SFrank Blaschka data[10] = card->perf_stats.sg_skbs_rx; 60224a71df50SFrank Blaschka data[11] = card->perf_stats.sg_frags_rx; 60234a71df50SFrank Blaschka data[12] = card->perf_stats.sg_alloc_page_rx; 60244a71df50SFrank Blaschka data[13] = (card->perf_stats.large_send_bytes >> 10); 60254a71df50SFrank Blaschka data[14] = card->perf_stats.large_send_cnt; 60264a71df50SFrank Blaschka data[15] = card->perf_stats.sc_dp_p; 60274a71df50SFrank Blaschka data[16] = card->perf_stats.sc_p_dp; 60284a71df50SFrank Blaschka data[17] = QETH_LOW_WATERMARK_PACK; 60294a71df50SFrank Blaschka data[18] = QETH_HIGH_WATERMARK_PACK; 60304a71df50SFrank Blaschka data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers); 60314a71df50SFrank Blaschka data[20] = (card->qdio.no_out_queues > 1) ? 60324a71df50SFrank Blaschka atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0; 60334a71df50SFrank Blaschka data[21] = (card->qdio.no_out_queues > 2) ? 60344a71df50SFrank Blaschka atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0; 60354a71df50SFrank Blaschka data[22] = (card->qdio.no_out_queues > 3) ? 60364a71df50SFrank Blaschka atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0; 60374a71df50SFrank Blaschka data[23] = card->perf_stats.inbound_time; 60384a71df50SFrank Blaschka data[24] = card->perf_stats.inbound_cnt; 60394a71df50SFrank Blaschka data[25] = card->perf_stats.inbound_do_qdio_time; 60404a71df50SFrank Blaschka data[26] = card->perf_stats.inbound_do_qdio_cnt; 60414a71df50SFrank Blaschka data[27] = card->perf_stats.outbound_handler_time; 60424a71df50SFrank Blaschka data[28] = card->perf_stats.outbound_handler_cnt; 60434a71df50SFrank Blaschka data[29] = card->perf_stats.outbound_time; 60444a71df50SFrank Blaschka data[30] = card->perf_stats.outbound_cnt; 60454a71df50SFrank Blaschka data[31] = card->perf_stats.outbound_do_qdio_time; 60464a71df50SFrank Blaschka data[32] = card->perf_stats.outbound_do_qdio_cnt; 6047f61a0d05SFrank Blaschka data[33] = card->perf_stats.tx_csum; 6048c3b4a740SFrank Blaschka data[34] = card->perf_stats.tx_lin; 60496059c905SEugene Crosser data[35] = card->perf_stats.tx_linfail; 60506059c905SEugene Crosser data[36] = card->perf_stats.cq_cnt; 60516059c905SEugene Crosser data[37] = card->perf_stats.cq_time; 60523aade31bSKittipon Meesompop data[38] = card->perf_stats.rx_csum; 60534a71df50SFrank Blaschka } 60544a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats); 60554a71df50SFrank Blaschka 60564a71df50SFrank Blaschka void qeth_core_get_strings(struct net_device *dev, u32 stringset, u8 *data) 60574a71df50SFrank Blaschka { 60584a71df50SFrank Blaschka switch (stringset) { 60594a71df50SFrank Blaschka case ETH_SS_STATS: 60604a71df50SFrank Blaschka memcpy(data, &qeth_ethtool_stats_keys, 60614a71df50SFrank Blaschka sizeof(qeth_ethtool_stats_keys)); 60624a71df50SFrank Blaschka break; 60634a71df50SFrank Blaschka default: 60644a71df50SFrank Blaschka WARN_ON(1); 60654a71df50SFrank Blaschka break; 60664a71df50SFrank Blaschka } 60674a71df50SFrank Blaschka } 60684a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_core_get_strings); 60694a71df50SFrank Blaschka 60704a71df50SFrank Blaschka void qeth_core_get_drvinfo(struct net_device *dev, 60714a71df50SFrank Blaschka struct ethtool_drvinfo *info) 60724a71df50SFrank Blaschka { 6073509e2562SHeiko Carstens struct qeth_card *card = dev->ml_priv; 60744a71df50SFrank Blaschka 60754fda3354SJulian Wiedmann strlcpy(info->driver, IS_LAYER2(card) ? "qeth_l2" : "qeth_l3", 60767826d43fSJiri Pirko sizeof(info->driver)); 60777826d43fSJiri Pirko strlcpy(info->version, "1.0", sizeof(info->version)); 60787826d43fSJiri Pirko strlcpy(info->fw_version, card->info.mcl_level, 60797826d43fSJiri Pirko sizeof(info->fw_version)); 60807826d43fSJiri Pirko snprintf(info->bus_info, sizeof(info->bus_info), "%s/%s/%s", 60817826d43fSJiri Pirko CARD_RDEV_ID(card), CARD_WDEV_ID(card), CARD_DDEV_ID(card)); 60824a71df50SFrank Blaschka } 60834a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo); 60844a71df50SFrank Blaschka 6085774afb8eSJulian Wiedmann /* Helper function to fill 'advertising' and 'supported' which are the same. */ 6086774afb8eSJulian Wiedmann /* Autoneg and full-duplex are supported and advertised unconditionally. */ 6087774afb8eSJulian Wiedmann /* Always advertise and support all speeds up to specified, and only one */ 608802d5cb5bSEugene Crosser /* specified port type. */ 6089993e19c0SJulian Wiedmann static void qeth_set_cmd_adv_sup(struct ethtool_link_ksettings *cmd, 609002d5cb5bSEugene Crosser int maxspeed, int porttype) 609102d5cb5bSEugene Crosser { 609241fc3b65SJulian Wiedmann ethtool_link_ksettings_zero_link_mode(cmd, supported); 609341fc3b65SJulian Wiedmann ethtool_link_ksettings_zero_link_mode(cmd, advertising); 609441fc3b65SJulian Wiedmann ethtool_link_ksettings_zero_link_mode(cmd, lp_advertising); 6095774afb8eSJulian Wiedmann 609641fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); 609741fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg); 609802d5cb5bSEugene Crosser 609902d5cb5bSEugene Crosser switch (porttype) { 610002d5cb5bSEugene Crosser case PORT_TP: 610141fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, TP); 610241fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, TP); 610302d5cb5bSEugene Crosser break; 610402d5cb5bSEugene Crosser case PORT_FIBRE: 610541fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE); 610641fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE); 610702d5cb5bSEugene Crosser break; 610802d5cb5bSEugene Crosser default: 610941fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, TP); 611041fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, TP); 611102d5cb5bSEugene Crosser WARN_ON_ONCE(1); 611202d5cb5bSEugene Crosser } 611302d5cb5bSEugene Crosser 611454e049c2SJulian Wiedmann /* partially does fall through, to also select lower speeds */ 611502d5cb5bSEugene Crosser switch (maxspeed) { 611654e049c2SJulian Wiedmann case SPEED_25000: 611754e049c2SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, 611854e049c2SJulian Wiedmann 25000baseSR_Full); 611954e049c2SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, 612054e049c2SJulian Wiedmann 25000baseSR_Full); 612154e049c2SJulian Wiedmann break; 612202d5cb5bSEugene Crosser case SPEED_10000: 612341fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, 612441fc3b65SJulian Wiedmann 10000baseT_Full); 612541fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, 612641fc3b65SJulian Wiedmann 10000baseT_Full); 612702d5cb5bSEugene Crosser case SPEED_1000: 612841fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, 612941fc3b65SJulian Wiedmann 1000baseT_Full); 613041fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, 613141fc3b65SJulian Wiedmann 1000baseT_Full); 613241fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, 613341fc3b65SJulian Wiedmann 1000baseT_Half); 613441fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, 613541fc3b65SJulian Wiedmann 1000baseT_Half); 613602d5cb5bSEugene Crosser case SPEED_100: 613741fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, 613841fc3b65SJulian Wiedmann 100baseT_Full); 613941fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, 614041fc3b65SJulian Wiedmann 100baseT_Full); 614141fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, 614241fc3b65SJulian Wiedmann 100baseT_Half); 614341fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, 614441fc3b65SJulian Wiedmann 100baseT_Half); 614502d5cb5bSEugene Crosser case SPEED_10: 614641fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, 614741fc3b65SJulian Wiedmann 10baseT_Full); 614841fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, 614941fc3b65SJulian Wiedmann 10baseT_Full); 615041fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, 615141fc3b65SJulian Wiedmann 10baseT_Half); 615241fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, 615341fc3b65SJulian Wiedmann 10baseT_Half); 6154774afb8eSJulian Wiedmann /* end fallthrough */ 615502d5cb5bSEugene Crosser break; 615602d5cb5bSEugene Crosser default: 615741fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, 615841fc3b65SJulian Wiedmann 10baseT_Full); 615941fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, 616041fc3b65SJulian Wiedmann 10baseT_Full); 616141fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, 616241fc3b65SJulian Wiedmann 10baseT_Half); 616341fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, 616441fc3b65SJulian Wiedmann 10baseT_Half); 616502d5cb5bSEugene Crosser WARN_ON_ONCE(1); 616602d5cb5bSEugene Crosser } 616702d5cb5bSEugene Crosser } 616802d5cb5bSEugene Crosser 6169993e19c0SJulian Wiedmann int qeth_core_ethtool_get_link_ksettings(struct net_device *netdev, 6170993e19c0SJulian Wiedmann struct ethtool_link_ksettings *cmd) 61713f9975aaSFrank Blaschka { 6172509e2562SHeiko Carstens struct qeth_card *card = netdev->ml_priv; 61733f9975aaSFrank Blaschka enum qeth_link_types link_type; 617402d5cb5bSEugene Crosser struct carrier_info carrier_info; 6175511c2445SEugene Crosser int rc; 61763f9975aaSFrank Blaschka 61773f9975aaSFrank Blaschka if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan)) 61783f9975aaSFrank Blaschka link_type = QETH_LINK_TYPE_10GBIT_ETH; 61793f9975aaSFrank Blaschka else 61803f9975aaSFrank Blaschka link_type = card->info.link_type; 61813f9975aaSFrank Blaschka 6182993e19c0SJulian Wiedmann cmd->base.duplex = DUPLEX_FULL; 6183993e19c0SJulian Wiedmann cmd->base.autoneg = AUTONEG_ENABLE; 6184993e19c0SJulian Wiedmann cmd->base.phy_address = 0; 6185993e19c0SJulian Wiedmann cmd->base.mdio_support = 0; 6186993e19c0SJulian Wiedmann cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID; 6187993e19c0SJulian Wiedmann cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_INVALID; 61883f9975aaSFrank Blaschka 61893f9975aaSFrank Blaschka switch (link_type) { 61903f9975aaSFrank Blaschka case QETH_LINK_TYPE_FAST_ETH: 61913f9975aaSFrank Blaschka case QETH_LINK_TYPE_LANE_ETH100: 6192993e19c0SJulian Wiedmann cmd->base.speed = SPEED_100; 6193993e19c0SJulian Wiedmann cmd->base.port = PORT_TP; 61943f9975aaSFrank Blaschka break; 61953f9975aaSFrank Blaschka case QETH_LINK_TYPE_GBIT_ETH: 61963f9975aaSFrank Blaschka case QETH_LINK_TYPE_LANE_ETH1000: 6197993e19c0SJulian Wiedmann cmd->base.speed = SPEED_1000; 6198993e19c0SJulian Wiedmann cmd->base.port = PORT_FIBRE; 61993f9975aaSFrank Blaschka break; 62003f9975aaSFrank Blaschka case QETH_LINK_TYPE_10GBIT_ETH: 6201993e19c0SJulian Wiedmann cmd->base.speed = SPEED_10000; 6202993e19c0SJulian Wiedmann cmd->base.port = PORT_FIBRE; 62033f9975aaSFrank Blaschka break; 620454e049c2SJulian Wiedmann case QETH_LINK_TYPE_25GBIT_ETH: 620554e049c2SJulian Wiedmann cmd->base.speed = SPEED_25000; 620654e049c2SJulian Wiedmann cmd->base.port = PORT_FIBRE; 620754e049c2SJulian Wiedmann break; 62083f9975aaSFrank Blaschka default: 6209993e19c0SJulian Wiedmann cmd->base.speed = SPEED_10; 6210993e19c0SJulian Wiedmann cmd->base.port = PORT_TP; 62113f9975aaSFrank Blaschka } 6212993e19c0SJulian Wiedmann qeth_set_cmd_adv_sup(cmd, cmd->base.speed, cmd->base.port); 62133f9975aaSFrank Blaschka 621402d5cb5bSEugene Crosser /* Check if we can obtain more accurate information. */ 621502d5cb5bSEugene Crosser /* If QUERY_CARD_INFO command is not supported or fails, */ 621602d5cb5bSEugene Crosser /* just return the heuristics that was filled above. */ 6217511c2445SEugene Crosser rc = qeth_query_card_info(card, &carrier_info); 6218511c2445SEugene Crosser if (rc == -EOPNOTSUPP) /* for old hardware, return heuristic */ 621902d5cb5bSEugene Crosser return 0; 6220511c2445SEugene Crosser if (rc) /* report error from the hardware operation */ 6221511c2445SEugene Crosser return rc; 6222511c2445SEugene Crosser /* on success, fill in the information got from the hardware */ 622302d5cb5bSEugene Crosser 622402d5cb5bSEugene Crosser netdev_dbg(netdev, 622502d5cb5bSEugene Crosser "card info: card_type=0x%02x, port_mode=0x%04x, port_speed=0x%08x\n", 622602d5cb5bSEugene Crosser carrier_info.card_type, 622702d5cb5bSEugene Crosser carrier_info.port_mode, 622802d5cb5bSEugene Crosser carrier_info.port_speed); 622902d5cb5bSEugene Crosser 623002d5cb5bSEugene Crosser /* Update attributes for which we've obtained more authoritative */ 623102d5cb5bSEugene Crosser /* information, leave the rest the way they where filled above. */ 623202d5cb5bSEugene Crosser switch (carrier_info.card_type) { 623302d5cb5bSEugene Crosser case CARD_INFO_TYPE_1G_COPPER_A: 623402d5cb5bSEugene Crosser case CARD_INFO_TYPE_1G_COPPER_B: 6235993e19c0SJulian Wiedmann cmd->base.port = PORT_TP; 6236993e19c0SJulian Wiedmann qeth_set_cmd_adv_sup(cmd, SPEED_1000, cmd->base.port); 623702d5cb5bSEugene Crosser break; 623802d5cb5bSEugene Crosser case CARD_INFO_TYPE_1G_FIBRE_A: 623902d5cb5bSEugene Crosser case CARD_INFO_TYPE_1G_FIBRE_B: 6240993e19c0SJulian Wiedmann cmd->base.port = PORT_FIBRE; 6241993e19c0SJulian Wiedmann qeth_set_cmd_adv_sup(cmd, SPEED_1000, cmd->base.port); 624202d5cb5bSEugene Crosser break; 624302d5cb5bSEugene Crosser case CARD_INFO_TYPE_10G_FIBRE_A: 624402d5cb5bSEugene Crosser case CARD_INFO_TYPE_10G_FIBRE_B: 6245993e19c0SJulian Wiedmann cmd->base.port = PORT_FIBRE; 6246993e19c0SJulian Wiedmann qeth_set_cmd_adv_sup(cmd, SPEED_10000, cmd->base.port); 624702d5cb5bSEugene Crosser break; 624802d5cb5bSEugene Crosser } 624902d5cb5bSEugene Crosser 625002d5cb5bSEugene Crosser switch (carrier_info.port_mode) { 625102d5cb5bSEugene Crosser case CARD_INFO_PORTM_FULLDUPLEX: 6252993e19c0SJulian Wiedmann cmd->base.duplex = DUPLEX_FULL; 625302d5cb5bSEugene Crosser break; 625402d5cb5bSEugene Crosser case CARD_INFO_PORTM_HALFDUPLEX: 6255993e19c0SJulian Wiedmann cmd->base.duplex = DUPLEX_HALF; 625602d5cb5bSEugene Crosser break; 625702d5cb5bSEugene Crosser } 625802d5cb5bSEugene Crosser 625902d5cb5bSEugene Crosser switch (carrier_info.port_speed) { 626002d5cb5bSEugene Crosser case CARD_INFO_PORTS_10M: 6261993e19c0SJulian Wiedmann cmd->base.speed = SPEED_10; 626202d5cb5bSEugene Crosser break; 626302d5cb5bSEugene Crosser case CARD_INFO_PORTS_100M: 6264993e19c0SJulian Wiedmann cmd->base.speed = SPEED_100; 626502d5cb5bSEugene Crosser break; 626602d5cb5bSEugene Crosser case CARD_INFO_PORTS_1G: 6267993e19c0SJulian Wiedmann cmd->base.speed = SPEED_1000; 626802d5cb5bSEugene Crosser break; 626902d5cb5bSEugene Crosser case CARD_INFO_PORTS_10G: 6270993e19c0SJulian Wiedmann cmd->base.speed = SPEED_10000; 627102d5cb5bSEugene Crosser break; 627254e049c2SJulian Wiedmann case CARD_INFO_PORTS_25G: 627354e049c2SJulian Wiedmann cmd->base.speed = SPEED_25000; 627454e049c2SJulian Wiedmann break; 627502d5cb5bSEugene Crosser } 627602d5cb5bSEugene Crosser 62773f9975aaSFrank Blaschka return 0; 62783f9975aaSFrank Blaschka } 6279993e19c0SJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_link_ksettings); 62803f9975aaSFrank Blaschka 6281c9475369SThomas Richter /* Callback to handle checksum offload command reply from OSA card. 6282c9475369SThomas Richter * Verify that required features have been enabled on the card. 6283c9475369SThomas Richter * Return error in hdr->return_code as this value is checked by caller. 6284c9475369SThomas Richter * 6285c9475369SThomas Richter * Always returns zero to indicate no further messages from the OSA card. 6286c9475369SThomas Richter */ 6287c9475369SThomas Richter static int qeth_ipa_checksum_run_cmd_cb(struct qeth_card *card, 6288c9475369SThomas Richter struct qeth_reply *reply, 6289c9475369SThomas Richter unsigned long data) 6290c9475369SThomas Richter { 6291c9475369SThomas Richter struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 6292c9475369SThomas Richter struct qeth_checksum_cmd *chksum_cb = 6293c9475369SThomas Richter (struct qeth_checksum_cmd *)reply->param; 6294c9475369SThomas Richter 6295c9475369SThomas Richter QETH_CARD_TEXT(card, 4, "chkdoccb"); 6296ad3cbf61SJulian Wiedmann if (qeth_setassparms_inspect_rc(cmd)) 6297c9475369SThomas Richter return 0; 6298c9475369SThomas Richter 6299c9475369SThomas Richter memset(chksum_cb, 0, sizeof(*chksum_cb)); 6300c9475369SThomas Richter if (cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_START) { 6301c9475369SThomas Richter chksum_cb->supported = 6302c9475369SThomas Richter cmd->data.setassparms.data.chksum.supported; 6303c9475369SThomas Richter QETH_CARD_TEXT_(card, 3, "strt:%x", chksum_cb->supported); 6304c9475369SThomas Richter } 6305c9475369SThomas Richter if (cmd->data.setassparms.hdr.command_code == IPA_CMD_ASS_ENABLE) { 6306c9475369SThomas Richter chksum_cb->supported = 6307c9475369SThomas Richter cmd->data.setassparms.data.chksum.supported; 6308c9475369SThomas Richter chksum_cb->enabled = 6309c9475369SThomas Richter cmd->data.setassparms.data.chksum.enabled; 6310c9475369SThomas Richter QETH_CARD_TEXT_(card, 3, "supp:%x", chksum_cb->supported); 6311c9475369SThomas Richter QETH_CARD_TEXT_(card, 3, "enab:%x", chksum_cb->enabled); 6312c9475369SThomas Richter } 6313c9475369SThomas Richter return 0; 6314c9475369SThomas Richter } 6315c9475369SThomas Richter 6316c9475369SThomas Richter /* Send command to OSA card and check results. */ 6317c9475369SThomas Richter static int qeth_ipa_checksum_run_cmd(struct qeth_card *card, 6318c9475369SThomas Richter enum qeth_ipa_funcs ipa_func, 6319c9475369SThomas Richter __u16 cmd_code, long data, 6320a8155b00SKittipon Meesompop struct qeth_checksum_cmd *chksum_cb, 6321a8155b00SKittipon Meesompop enum qeth_prot_versions prot) 6322c9475369SThomas Richter { 6323c9475369SThomas Richter struct qeth_cmd_buffer *iob; 6324c9475369SThomas Richter 6325c9475369SThomas Richter QETH_CARD_TEXT(card, 4, "chkdocmd"); 6326c9475369SThomas Richter iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code, 6327a8155b00SKittipon Meesompop sizeof(__u32), prot); 63284fa55fa9SJulian Wiedmann if (!iob) 63294fa55fa9SJulian Wiedmann return -ENOMEM; 63304fa55fa9SJulian Wiedmann 63314fa55fa9SJulian Wiedmann __ipa_cmd(iob)->data.setassparms.data.flags_32bit = (__u32) data; 63324fa55fa9SJulian Wiedmann return qeth_send_ipa_cmd(card, iob, qeth_ipa_checksum_run_cmd_cb, 6333c9475369SThomas Richter chksum_cb); 6334c9475369SThomas Richter } 6335c9475369SThomas Richter 6336a8155b00SKittipon Meesompop static int qeth_send_checksum_on(struct qeth_card *card, int cstype, 6337a8155b00SKittipon Meesompop enum qeth_prot_versions prot) 63384d7def2aSThomas Richter { 6339571f9dd8SKittipon Meesompop u32 required_features = QETH_IPA_CHECKSUM_UDP | QETH_IPA_CHECKSUM_TCP; 6340c9475369SThomas Richter struct qeth_checksum_cmd chksum_cb; 63414d7def2aSThomas Richter int rc; 63424d7def2aSThomas Richter 6343571f9dd8SKittipon Meesompop if (prot == QETH_PROT_IPV4) 6344571f9dd8SKittipon Meesompop required_features |= QETH_IPA_CHECKSUM_IP_HDR; 6345c9475369SThomas Richter rc = qeth_ipa_checksum_run_cmd(card, cstype, IPA_CMD_ASS_START, 0, 6346a8155b00SKittipon Meesompop &chksum_cb, prot); 6347f9d8e6dcSThomas Richter if (!rc) { 6348f9d8e6dcSThomas Richter if ((required_features & chksum_cb.supported) != 6349f9d8e6dcSThomas Richter required_features) 6350f9d8e6dcSThomas Richter rc = -EIO; 6351dae84c8eSThomas Richter else if (!(QETH_IPA_CHECKSUM_LP2LP & chksum_cb.supported) && 6352dae84c8eSThomas Richter cstype == IPA_INBOUND_CHECKSUM) 6353dae84c8eSThomas Richter dev_warn(&card->gdev->dev, 6354dae84c8eSThomas Richter "Hardware checksumming is performed only if %s and its peer use different OSA Express 3 ports\n", 6355dae84c8eSThomas Richter QETH_CARD_IFNAME(card)); 6356f9d8e6dcSThomas Richter } 63574d7def2aSThomas Richter if (rc) { 6358a8155b00SKittipon Meesompop qeth_send_simple_setassparms_prot(card, cstype, 6359a8155b00SKittipon Meesompop IPA_CMD_ASS_STOP, 0, prot); 63608f43fb00SThomas Richter dev_warn(&card->gdev->dev, 6361a8155b00SKittipon Meesompop "Starting HW IPv%d checksumming for %s failed, using SW checksumming\n", 6362a8155b00SKittipon Meesompop prot, QETH_CARD_IFNAME(card)); 63634d7def2aSThomas Richter return rc; 63644d7def2aSThomas Richter } 6365c9475369SThomas Richter rc = qeth_ipa_checksum_run_cmd(card, cstype, IPA_CMD_ASS_ENABLE, 6366a8155b00SKittipon Meesompop chksum_cb.supported, &chksum_cb, 6367a8155b00SKittipon Meesompop prot); 6368f9d8e6dcSThomas Richter if (!rc) { 6369f9d8e6dcSThomas Richter if ((required_features & chksum_cb.enabled) != 6370f9d8e6dcSThomas Richter required_features) 6371f9d8e6dcSThomas Richter rc = -EIO; 6372f9d8e6dcSThomas Richter } 63734d7def2aSThomas Richter if (rc) { 6374a8155b00SKittipon Meesompop qeth_send_simple_setassparms_prot(card, cstype, 6375a8155b00SKittipon Meesompop IPA_CMD_ASS_STOP, 0, prot); 63768f43fb00SThomas Richter dev_warn(&card->gdev->dev, 6377a8155b00SKittipon Meesompop "Enabling HW IPv%d checksumming for %s failed, using SW checksumming\n", 6378a8155b00SKittipon Meesompop prot, QETH_CARD_IFNAME(card)); 63794d7def2aSThomas Richter return rc; 63804d7def2aSThomas Richter } 63818f43fb00SThomas Richter 6382a8155b00SKittipon Meesompop dev_info(&card->gdev->dev, "HW Checksumming (%sbound IPv%d) enabled\n", 6383a8155b00SKittipon Meesompop cstype == IPA_INBOUND_CHECKSUM ? "in" : "out", prot); 63844d7def2aSThomas Richter return 0; 63854d7def2aSThomas Richter } 63864d7def2aSThomas Richter 6387a8155b00SKittipon Meesompop static int qeth_set_ipa_csum(struct qeth_card *card, bool on, int cstype, 6388a8155b00SKittipon Meesompop enum qeth_prot_versions prot) 63894d7def2aSThomas Richter { 6390a8155b00SKittipon Meesompop int rc = (on) ? qeth_send_checksum_on(card, cstype, prot) 6391a8155b00SKittipon Meesompop : qeth_send_simple_setassparms_prot(card, cstype, 6392a8155b00SKittipon Meesompop IPA_CMD_ASS_STOP, 0, 6393a8155b00SKittipon Meesompop prot); 6394c9475369SThomas Richter return rc ? -EIO : 0; 63954d7def2aSThomas Richter } 63964d7def2aSThomas Richter 63974666d7fbSJulian Wiedmann static int qeth_start_tso_cb(struct qeth_card *card, struct qeth_reply *reply, 63984666d7fbSJulian Wiedmann unsigned long data) 63994666d7fbSJulian Wiedmann { 64004666d7fbSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 64014666d7fbSJulian Wiedmann struct qeth_tso_start_data *tso_data = reply->param; 64024666d7fbSJulian Wiedmann 64034666d7fbSJulian Wiedmann if (qeth_setassparms_inspect_rc(cmd)) 64044666d7fbSJulian Wiedmann return 0; 64054666d7fbSJulian Wiedmann 64064666d7fbSJulian Wiedmann tso_data->mss = cmd->data.setassparms.data.tso.mss; 64074666d7fbSJulian Wiedmann tso_data->supported = cmd->data.setassparms.data.tso.supported; 64084666d7fbSJulian Wiedmann return 0; 64094666d7fbSJulian Wiedmann } 64104666d7fbSJulian Wiedmann 64111f83b817SJulian Wiedmann static int qeth_set_tso_off(struct qeth_card *card, 64121f83b817SJulian Wiedmann enum qeth_prot_versions prot) 64134d7def2aSThomas Richter { 64141f83b817SJulian Wiedmann return qeth_send_simple_setassparms_prot(card, IPA_OUTBOUND_TSO, 64151f83b817SJulian Wiedmann IPA_CMD_ASS_STOP, 0, prot); 64168f43fb00SThomas Richter } 64171f83b817SJulian Wiedmann 64181f83b817SJulian Wiedmann static int qeth_set_tso_on(struct qeth_card *card, 64191f83b817SJulian Wiedmann enum qeth_prot_versions prot) 64201f83b817SJulian Wiedmann { 64214666d7fbSJulian Wiedmann struct qeth_tso_start_data tso_data; 64224666d7fbSJulian Wiedmann struct qeth_cmd_buffer *iob; 64234666d7fbSJulian Wiedmann struct qeth_ipa_caps caps; 64244666d7fbSJulian Wiedmann int rc; 64254666d7fbSJulian Wiedmann 64264666d7fbSJulian Wiedmann iob = qeth_get_setassparms_cmd(card, IPA_OUTBOUND_TSO, 64271f83b817SJulian Wiedmann IPA_CMD_ASS_START, 0, prot); 64284666d7fbSJulian Wiedmann if (!iob) 64294666d7fbSJulian Wiedmann return -ENOMEM; 64304666d7fbSJulian Wiedmann 64314fa55fa9SJulian Wiedmann rc = qeth_send_ipa_cmd(card, iob, qeth_start_tso_cb, &tso_data); 64324666d7fbSJulian Wiedmann if (rc) 64334666d7fbSJulian Wiedmann return rc; 64344666d7fbSJulian Wiedmann 64354666d7fbSJulian Wiedmann if (!tso_data.mss || !(tso_data.supported & QETH_IPA_LARGE_SEND_TCP)) { 64364666d7fbSJulian Wiedmann qeth_set_tso_off(card, prot); 64374666d7fbSJulian Wiedmann return -EOPNOTSUPP; 64384666d7fbSJulian Wiedmann } 64394666d7fbSJulian Wiedmann 64404666d7fbSJulian Wiedmann iob = qeth_get_setassparms_cmd(card, IPA_OUTBOUND_TSO, 64414666d7fbSJulian Wiedmann IPA_CMD_ASS_ENABLE, sizeof(caps), prot); 64424666d7fbSJulian Wiedmann if (!iob) { 64434666d7fbSJulian Wiedmann qeth_set_tso_off(card, prot); 64444666d7fbSJulian Wiedmann return -ENOMEM; 64454666d7fbSJulian Wiedmann } 64464666d7fbSJulian Wiedmann 64474666d7fbSJulian Wiedmann /* enable TSO capability */ 64484fa55fa9SJulian Wiedmann __ipa_cmd(iob)->data.setassparms.data.caps.enabled = 64494fa55fa9SJulian Wiedmann QETH_IPA_LARGE_SEND_TCP; 64504fa55fa9SJulian Wiedmann rc = qeth_send_ipa_cmd(card, iob, qeth_setassparms_get_caps_cb, &caps); 64514666d7fbSJulian Wiedmann if (rc) { 64524666d7fbSJulian Wiedmann qeth_set_tso_off(card, prot); 64534666d7fbSJulian Wiedmann return rc; 64544666d7fbSJulian Wiedmann } 64554666d7fbSJulian Wiedmann 64564666d7fbSJulian Wiedmann if (!qeth_ipa_caps_supported(&caps, QETH_IPA_LARGE_SEND_TCP) || 64574666d7fbSJulian Wiedmann !qeth_ipa_caps_enabled(&caps, QETH_IPA_LARGE_SEND_TCP)) { 64584666d7fbSJulian Wiedmann qeth_set_tso_off(card, prot); 64594666d7fbSJulian Wiedmann return -EOPNOTSUPP; 64604666d7fbSJulian Wiedmann } 64614666d7fbSJulian Wiedmann 64624666d7fbSJulian Wiedmann dev_info(&card->gdev->dev, "TSOv%u enabled (MSS: %u)\n", prot, 64634666d7fbSJulian Wiedmann tso_data.mss); 64644666d7fbSJulian Wiedmann return 0; 64658f43fb00SThomas Richter } 64661f83b817SJulian Wiedmann 64671f83b817SJulian Wiedmann static int qeth_set_ipa_tso(struct qeth_card *card, bool on, 64681f83b817SJulian Wiedmann enum qeth_prot_versions prot) 64691f83b817SJulian Wiedmann { 64701f83b817SJulian Wiedmann int rc = on ? qeth_set_tso_on(card, prot) : 64711f83b817SJulian Wiedmann qeth_set_tso_off(card, prot); 64721f83b817SJulian Wiedmann 64731f83b817SJulian Wiedmann return rc ? -EIO : 0; 64744d7def2aSThomas Richter } 64758f43fb00SThomas Richter 6476d7e6ed97SKittipon Meesompop static int qeth_set_ipa_rx_csum(struct qeth_card *card, bool on) 6477d7e6ed97SKittipon Meesompop { 6478d7e6ed97SKittipon Meesompop int rc_ipv4 = (on) ? -EOPNOTSUPP : 0; 6479d7e6ed97SKittipon Meesompop int rc_ipv6; 6480ce344356SJulian Wiedmann 6481d7e6ed97SKittipon Meesompop if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) 6482d7e6ed97SKittipon Meesompop rc_ipv4 = qeth_set_ipa_csum(card, on, IPA_INBOUND_CHECKSUM, 6483d7e6ed97SKittipon Meesompop QETH_PROT_IPV4); 6484d7e6ed97SKittipon Meesompop if (!qeth_is_supported6(card, IPA_INBOUND_CHECKSUM_V6)) 6485d7e6ed97SKittipon Meesompop /* no/one Offload Assist available, so the rc is trivial */ 6486d7e6ed97SKittipon Meesompop return rc_ipv4; 6487d7e6ed97SKittipon Meesompop 6488d7e6ed97SKittipon Meesompop rc_ipv6 = qeth_set_ipa_csum(card, on, IPA_INBOUND_CHECKSUM, 6489d7e6ed97SKittipon Meesompop QETH_PROT_IPV6); 6490d7e6ed97SKittipon Meesompop 6491d7e6ed97SKittipon Meesompop if (on) 6492d7e6ed97SKittipon Meesompop /* enable: success if any Assist is active */ 6493d7e6ed97SKittipon Meesompop return (rc_ipv6) ? rc_ipv4 : 0; 6494d7e6ed97SKittipon Meesompop 6495d7e6ed97SKittipon Meesompop /* disable: failure if any Assist is still active */ 6496d7e6ed97SKittipon Meesompop return (rc_ipv6) ? rc_ipv6 : rc_ipv4; 6497d7e6ed97SKittipon Meesompop } 6498d7e6ed97SKittipon Meesompop 6499ce344356SJulian Wiedmann /** 6500d025da9eSJulian Wiedmann * qeth_enable_hw_features() - (Re-)Enable HW functions for device features 6501d025da9eSJulian Wiedmann * @dev: a net_device 6502ce344356SJulian Wiedmann */ 6503d025da9eSJulian Wiedmann void qeth_enable_hw_features(struct net_device *dev) 6504e830baa9SHans Wippel { 6505e830baa9SHans Wippel struct qeth_card *card = dev->ml_priv; 6506d025da9eSJulian Wiedmann netdev_features_t features; 6507e830baa9SHans Wippel 6508d025da9eSJulian Wiedmann features = dev->features; 65095fc692a7SJulian Wiedmann /* force-off any feature that might need an IPA sequence. 6510ce344356SJulian Wiedmann * netdev_update_features() will restart them. 6511ce344356SJulian Wiedmann */ 65125fc692a7SJulian Wiedmann dev->features &= ~dev->hw_features; 65135fc692a7SJulian Wiedmann /* toggle VLAN filter, so that VIDs are re-programmed: */ 65145fc692a7SJulian Wiedmann if (IS_LAYER2(card) && IS_VM_NIC(card)) { 65155fc692a7SJulian Wiedmann dev->features &= ~NETIF_F_HW_VLAN_CTAG_FILTER; 65165fc692a7SJulian Wiedmann dev->wanted_features |= NETIF_F_HW_VLAN_CTAG_FILTER; 65175fc692a7SJulian Wiedmann } 6518ce344356SJulian Wiedmann netdev_update_features(dev); 6519d025da9eSJulian Wiedmann if (features != dev->features) 6520e830baa9SHans Wippel dev_warn(&card->gdev->dev, 6521e830baa9SHans Wippel "Device recovery failed to restore all offload features\n"); 6522e830baa9SHans Wippel } 6523d025da9eSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_enable_hw_features); 6524e830baa9SHans Wippel 65258f43fb00SThomas Richter int qeth_set_features(struct net_device *dev, netdev_features_t features) 65268f43fb00SThomas Richter { 65278f43fb00SThomas Richter struct qeth_card *card = dev->ml_priv; 65286c7cd712SHans Wippel netdev_features_t changed = dev->features ^ features; 65298f43fb00SThomas Richter int rc = 0; 65308f43fb00SThomas Richter 65318f43fb00SThomas Richter QETH_DBF_TEXT(SETUP, 2, "setfeat"); 65328f43fb00SThomas Richter QETH_DBF_HEX(SETUP, 2, &features, sizeof(features)); 65338f43fb00SThomas Richter 65346c7cd712SHans Wippel if ((changed & NETIF_F_IP_CSUM)) { 6535a8155b00SKittipon Meesompop rc = qeth_set_ipa_csum(card, features & NETIF_F_IP_CSUM, 6536a8155b00SKittipon Meesompop IPA_OUTBOUND_CHECKSUM, QETH_PROT_IPV4); 65376c7cd712SHans Wippel if (rc) 65386c7cd712SHans Wippel changed ^= NETIF_F_IP_CSUM; 65396c7cd712SHans Wippel } 6540571f9dd8SKittipon Meesompop if (changed & NETIF_F_IPV6_CSUM) { 6541571f9dd8SKittipon Meesompop rc = qeth_set_ipa_csum(card, features & NETIF_F_IPV6_CSUM, 6542571f9dd8SKittipon Meesompop IPA_OUTBOUND_CHECKSUM, QETH_PROT_IPV6); 6543571f9dd8SKittipon Meesompop if (rc) 6544571f9dd8SKittipon Meesompop changed ^= NETIF_F_IPV6_CSUM; 6545571f9dd8SKittipon Meesompop } 6546d7e6ed97SKittipon Meesompop if (changed & NETIF_F_RXCSUM) { 6547d7e6ed97SKittipon Meesompop rc = qeth_set_ipa_rx_csum(card, features & NETIF_F_RXCSUM); 65486c7cd712SHans Wippel if (rc) 65496c7cd712SHans Wippel changed ^= NETIF_F_RXCSUM; 65506c7cd712SHans Wippel } 65511f83b817SJulian Wiedmann if (changed & NETIF_F_TSO) { 65521f83b817SJulian Wiedmann rc = qeth_set_ipa_tso(card, features & NETIF_F_TSO, 65531f83b817SJulian Wiedmann QETH_PROT_IPV4); 65546c7cd712SHans Wippel if (rc) 65556c7cd712SHans Wippel changed ^= NETIF_F_TSO; 65566c7cd712SHans Wippel } 655782bf5c08SJulian Wiedmann if (changed & NETIF_F_TSO6) { 655882bf5c08SJulian Wiedmann rc = qeth_set_ipa_tso(card, features & NETIF_F_TSO6, 655982bf5c08SJulian Wiedmann QETH_PROT_IPV6); 656082bf5c08SJulian Wiedmann if (rc) 656182bf5c08SJulian Wiedmann changed ^= NETIF_F_TSO6; 656282bf5c08SJulian Wiedmann } 65636c7cd712SHans Wippel 65646c7cd712SHans Wippel /* everything changed successfully? */ 65656c7cd712SHans Wippel if ((dev->features ^ features) == changed) 65666c7cd712SHans Wippel return 0; 65676c7cd712SHans Wippel /* something went wrong. save changed features and return error */ 65686c7cd712SHans Wippel dev->features ^= changed; 65696c7cd712SHans Wippel return -EIO; 65708f43fb00SThomas Richter } 65718f43fb00SThomas Richter EXPORT_SYMBOL_GPL(qeth_set_features); 65728f43fb00SThomas Richter 65738f43fb00SThomas Richter netdev_features_t qeth_fix_features(struct net_device *dev, 65748f43fb00SThomas Richter netdev_features_t features) 65758f43fb00SThomas Richter { 65768f43fb00SThomas Richter struct qeth_card *card = dev->ml_priv; 65778f43fb00SThomas Richter 65788f43fb00SThomas Richter QETH_DBF_TEXT(SETUP, 2, "fixfeat"); 65798f43fb00SThomas Richter if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM)) 65808f43fb00SThomas Richter features &= ~NETIF_F_IP_CSUM; 6581571f9dd8SKittipon Meesompop if (!qeth_is_supported6(card, IPA_OUTBOUND_CHECKSUM_V6)) 6582571f9dd8SKittipon Meesompop features &= ~NETIF_F_IPV6_CSUM; 6583d7e6ed97SKittipon Meesompop if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM) && 6584d7e6ed97SKittipon Meesompop !qeth_is_supported6(card, IPA_INBOUND_CHECKSUM_V6)) 65858f43fb00SThomas Richter features &= ~NETIF_F_RXCSUM; 6586cf536ffeSJulian Wiedmann if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) 65878f43fb00SThomas Richter features &= ~NETIF_F_TSO; 658882bf5c08SJulian Wiedmann if (!qeth_is_supported6(card, IPA_OUTBOUND_TSO)) 658982bf5c08SJulian Wiedmann features &= ~NETIF_F_TSO6; 6590e6e771b3SJulian Wiedmann 65918f43fb00SThomas Richter QETH_DBF_HEX(SETUP, 2, &features, sizeof(features)); 65928f43fb00SThomas Richter return features; 65938f43fb00SThomas Richter } 65948f43fb00SThomas Richter EXPORT_SYMBOL_GPL(qeth_fix_features); 65954d7def2aSThomas Richter 65966d69b1f1SJulian Wiedmann netdev_features_t qeth_features_check(struct sk_buff *skb, 65976d69b1f1SJulian Wiedmann struct net_device *dev, 65986d69b1f1SJulian Wiedmann netdev_features_t features) 65996d69b1f1SJulian Wiedmann { 66006d69b1f1SJulian Wiedmann /* GSO segmentation builds skbs with 66016d69b1f1SJulian Wiedmann * a (small) linear part for the headers, and 66026d69b1f1SJulian Wiedmann * page frags for the data. 66036d69b1f1SJulian Wiedmann * Compared to a linear skb, the header-only part consumes an 66046d69b1f1SJulian Wiedmann * additional buffer element. This reduces buffer utilization, and 66056d69b1f1SJulian Wiedmann * hurts throughput. So compress small segments into one element. 66066d69b1f1SJulian Wiedmann */ 66076d69b1f1SJulian Wiedmann if (netif_needs_gso(skb, features)) { 66086d69b1f1SJulian Wiedmann /* match skb_segment(): */ 66096d69b1f1SJulian Wiedmann unsigned int doffset = skb->data - skb_mac_header(skb); 66106d69b1f1SJulian Wiedmann unsigned int hsize = skb_shinfo(skb)->gso_size; 66116d69b1f1SJulian Wiedmann unsigned int hroom = skb_headroom(skb); 66126d69b1f1SJulian Wiedmann 66136d69b1f1SJulian Wiedmann /* linearize only if resulting skb allocations are order-0: */ 66146d69b1f1SJulian Wiedmann if (SKB_DATA_ALIGN(hroom + doffset + hsize) <= SKB_MAX_HEAD(0)) 66156d69b1f1SJulian Wiedmann features &= ~NETIF_F_SG; 66166d69b1f1SJulian Wiedmann } 66176d69b1f1SJulian Wiedmann 66186d69b1f1SJulian Wiedmann return vlan_features_check(skb, features); 66196d69b1f1SJulian Wiedmann } 66206d69b1f1SJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_features_check); 66216d69b1f1SJulian Wiedmann 6622e6e771b3SJulian Wiedmann int qeth_open(struct net_device *dev) 6623e22355eaSJulian Wiedmann { 6624e22355eaSJulian Wiedmann struct qeth_card *card = dev->ml_priv; 6625e22355eaSJulian Wiedmann 6626e22355eaSJulian Wiedmann QETH_CARD_TEXT(card, 4, "qethopen"); 6627e22355eaSJulian Wiedmann if (card->state == CARD_STATE_UP) 6628e22355eaSJulian Wiedmann return 0; 6629e22355eaSJulian Wiedmann if (card->state != CARD_STATE_SOFTSETUP) 6630e22355eaSJulian Wiedmann return -ENODEV; 6631e22355eaSJulian Wiedmann 6632e22355eaSJulian Wiedmann if (qdio_stop_irq(CARD_DDEV(card), 0) < 0) 6633e22355eaSJulian Wiedmann return -EIO; 6634e22355eaSJulian Wiedmann 6635e22355eaSJulian Wiedmann card->data.state = CH_STATE_UP; 6636e22355eaSJulian Wiedmann card->state = CARD_STATE_UP; 6637e22355eaSJulian Wiedmann netif_start_queue(dev); 6638e22355eaSJulian Wiedmann 6639e22355eaSJulian Wiedmann napi_enable(&card->napi); 6640e22355eaSJulian Wiedmann local_bh_disable(); 6641e22355eaSJulian Wiedmann napi_schedule(&card->napi); 6642e22355eaSJulian Wiedmann /* kick-start the NAPI softirq: */ 6643e22355eaSJulian Wiedmann local_bh_enable(); 6644e22355eaSJulian Wiedmann return 0; 6645e22355eaSJulian Wiedmann } 6646e22355eaSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_open); 6647e22355eaSJulian Wiedmann 6648e22355eaSJulian Wiedmann int qeth_stop(struct net_device *dev) 6649e22355eaSJulian Wiedmann { 6650e22355eaSJulian Wiedmann struct qeth_card *card = dev->ml_priv; 6651e22355eaSJulian Wiedmann 6652e22355eaSJulian Wiedmann QETH_CARD_TEXT(card, 4, "qethstop"); 6653e22355eaSJulian Wiedmann netif_tx_disable(dev); 6654e22355eaSJulian Wiedmann if (card->state == CARD_STATE_UP) { 6655e22355eaSJulian Wiedmann card->state = CARD_STATE_SOFTSETUP; 6656e22355eaSJulian Wiedmann napi_disable(&card->napi); 6657e22355eaSJulian Wiedmann } 6658e22355eaSJulian Wiedmann return 0; 6659e22355eaSJulian Wiedmann } 6660e22355eaSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_stop); 6661e22355eaSJulian Wiedmann 66624a71df50SFrank Blaschka static int __init qeth_core_init(void) 66634a71df50SFrank Blaschka { 66644a71df50SFrank Blaschka int rc; 66654a71df50SFrank Blaschka 666674eacdb9SFrank Blaschka pr_info("loading core functions\n"); 66674a71df50SFrank Blaschka 66680f54761dSStefan Raspl qeth_wq = create_singlethread_workqueue("qeth_wq"); 6669a936b1efSJulian Wiedmann if (!qeth_wq) { 6670a936b1efSJulian Wiedmann rc = -ENOMEM; 6671a936b1efSJulian Wiedmann goto out_err; 6672a936b1efSJulian Wiedmann } 66730f54761dSStefan Raspl 66744a71df50SFrank Blaschka rc = qeth_register_dbf_views(); 66754a71df50SFrank Blaschka if (rc) 6676a936b1efSJulian Wiedmann goto dbf_err; 6677035da16fSMark McLoughlin qeth_core_root_dev = root_device_register("qeth"); 66789262c6c2SDuan Jiong rc = PTR_ERR_OR_ZERO(qeth_core_root_dev); 66794a71df50SFrank Blaschka if (rc) 66804a71df50SFrank Blaschka goto register_err; 668155494264SJulian Wiedmann qeth_core_header_cache = 668255494264SJulian Wiedmann kmem_cache_create("qeth_hdr", QETH_HDR_CACHE_OBJ_SIZE, 668355494264SJulian Wiedmann roundup_pow_of_two(QETH_HDR_CACHE_OBJ_SIZE), 668455494264SJulian Wiedmann 0, NULL); 6685683d718aSFrank Blaschka if (!qeth_core_header_cache) { 6686683d718aSFrank Blaschka rc = -ENOMEM; 6687683d718aSFrank Blaschka goto slab_err; 6688683d718aSFrank Blaschka } 66890da9581dSEinar Lueck qeth_qdio_outbuf_cache = kmem_cache_create("qeth_buf", 66900da9581dSEinar Lueck sizeof(struct qeth_qdio_out_buffer), 0, 0, NULL); 66910da9581dSEinar Lueck if (!qeth_qdio_outbuf_cache) { 66920da9581dSEinar Lueck rc = -ENOMEM; 66930da9581dSEinar Lueck goto cqslab_err; 66940da9581dSEinar Lueck } 66954a71df50SFrank Blaschka rc = ccw_driver_register(&qeth_ccw_driver); 66964a71df50SFrank Blaschka if (rc) 66974a71df50SFrank Blaschka goto ccw_err; 66984a71df50SFrank Blaschka rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver); 66994a71df50SFrank Blaschka if (rc) 67004a71df50SFrank Blaschka goto ccwgroup_err; 67010da9581dSEinar Lueck 6702683d718aSFrank Blaschka return 0; 6703afb6ac59SSebastian Ott 6704afb6ac59SSebastian Ott ccwgroup_err: 6705afb6ac59SSebastian Ott ccw_driver_unregister(&qeth_ccw_driver); 6706afb6ac59SSebastian Ott ccw_err: 6707afb6ac59SSebastian Ott kmem_cache_destroy(qeth_qdio_outbuf_cache); 67080da9581dSEinar Lueck cqslab_err: 67090da9581dSEinar Lueck kmem_cache_destroy(qeth_core_header_cache); 6710683d718aSFrank Blaschka slab_err: 6711035da16fSMark McLoughlin root_device_unregister(qeth_core_root_dev); 67124a71df50SFrank Blaschka register_err: 67134a71df50SFrank Blaschka qeth_unregister_dbf_views(); 6714a936b1efSJulian Wiedmann dbf_err: 6715a936b1efSJulian Wiedmann destroy_workqueue(qeth_wq); 67164a71df50SFrank Blaschka out_err: 671774eacdb9SFrank Blaschka pr_err("Initializing the qeth device driver failed\n"); 67184a71df50SFrank Blaschka return rc; 67194a71df50SFrank Blaschka } 67204a71df50SFrank Blaschka 67214a71df50SFrank Blaschka static void __exit qeth_core_exit(void) 67224a71df50SFrank Blaschka { 6723819dc537SStefan Raspl qeth_clear_dbf_list(); 67240f54761dSStefan Raspl destroy_workqueue(qeth_wq); 67254a71df50SFrank Blaschka ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver); 67264a71df50SFrank Blaschka ccw_driver_unregister(&qeth_ccw_driver); 67270da9581dSEinar Lueck kmem_cache_destroy(qeth_qdio_outbuf_cache); 6728683d718aSFrank Blaschka kmem_cache_destroy(qeth_core_header_cache); 6729afb6ac59SSebastian Ott root_device_unregister(qeth_core_root_dev); 67304a71df50SFrank Blaschka qeth_unregister_dbf_views(); 673174eacdb9SFrank Blaschka pr_info("core functions removed\n"); 67324a71df50SFrank Blaschka } 67334a71df50SFrank Blaschka 67344a71df50SFrank Blaschka module_init(qeth_core_init); 67354a71df50SFrank Blaschka module_exit(qeth_core_exit); 67364a71df50SFrank Blaschka MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); 67374a71df50SFrank Blaschka MODULE_DESCRIPTION("qeth core functions"); 67384a71df50SFrank Blaschka MODULE_LICENSE("GPL"); 6739