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); 5690951c6baSJulian Wiedmann init_waitqueue_head(&reply->wait_q); 5706531084cSPeter Senna Tschudin } 5714a71df50SFrank Blaschka return reply; 5724a71df50SFrank Blaschka } 5734a71df50SFrank Blaschka 5744a71df50SFrank Blaschka static void qeth_get_reply(struct qeth_reply *reply) 5754a71df50SFrank Blaschka { 576ae695927SElena Reshetova refcount_inc(&reply->refcnt); 5774a71df50SFrank Blaschka } 5784a71df50SFrank Blaschka 5794a71df50SFrank Blaschka static void qeth_put_reply(struct qeth_reply *reply) 5804a71df50SFrank Blaschka { 581ae695927SElena Reshetova if (refcount_dec_and_test(&reply->refcnt)) 5824a71df50SFrank Blaschka kfree(reply); 5834a71df50SFrank Blaschka } 5844a71df50SFrank Blaschka 5850951c6baSJulian Wiedmann static void qeth_enqueue_reply(struct qeth_card *card, struct qeth_reply *reply) 5860951c6baSJulian Wiedmann { 5870951c6baSJulian Wiedmann spin_lock_irq(&card->lock); 5880951c6baSJulian Wiedmann list_add_tail(&reply->list, &card->cmd_waiter_list); 5890951c6baSJulian Wiedmann spin_unlock_irq(&card->lock); 5900951c6baSJulian Wiedmann } 5910951c6baSJulian Wiedmann 5920951c6baSJulian Wiedmann static void qeth_dequeue_reply(struct qeth_card *card, struct qeth_reply *reply) 5930951c6baSJulian Wiedmann { 5940951c6baSJulian Wiedmann spin_lock_irq(&card->lock); 5950951c6baSJulian Wiedmann list_del(&reply->list); 5960951c6baSJulian Wiedmann spin_unlock_irq(&card->lock); 5970951c6baSJulian Wiedmann } 5980951c6baSJulian Wiedmann 5990951c6baSJulian Wiedmann static void qeth_notify_reply(struct qeth_reply *reply) 6000951c6baSJulian Wiedmann { 6010951c6baSJulian Wiedmann atomic_inc(&reply->received); 6020951c6baSJulian Wiedmann wake_up(&reply->wait_q); 6030951c6baSJulian Wiedmann } 6040951c6baSJulian Wiedmann 605d11ba0c4SPeter Tiedemann static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc, 6064a71df50SFrank Blaschka struct qeth_card *card) 6074a71df50SFrank Blaschka { 608048a7f8bSJean Delvare const char *ipa_name; 609d11ba0c4SPeter Tiedemann int com = cmd->hdr.command; 6104a71df50SFrank Blaschka ipa_name = qeth_get_ipa_cmd_name(com); 611e19e5be8SJulian Wiedmann 612d11ba0c4SPeter Tiedemann if (rc) 613e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "IPA: %s(%#x) for device %x returned %#x \"%s\"\n", 614e19e5be8SJulian Wiedmann ipa_name, com, CARD_DEVID(card), rc, 61570919e23SUrsula Braun qeth_get_ipa_msg(rc)); 616d11ba0c4SPeter Tiedemann else 617e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(5, "IPA: %s(%#x) for device %x succeeded\n", 618e19e5be8SJulian Wiedmann ipa_name, com, CARD_DEVID(card)); 6194a71df50SFrank Blaschka } 6204a71df50SFrank Blaschka 6214a71df50SFrank Blaschka static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card, 622d19b93f4SJulian Wiedmann struct qeth_ipa_cmd *cmd) 6234a71df50SFrank Blaschka { 624847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "chkipad"); 625d19b93f4SJulian Wiedmann 6264a71df50SFrank Blaschka if (IS_IPA_REPLY(cmd)) { 62776b11f8eSUrsula Braun if (cmd->hdr.command != IPA_CMD_SETCCID && 62876b11f8eSUrsula Braun cmd->hdr.command != IPA_CMD_DELCCID && 62976b11f8eSUrsula Braun cmd->hdr.command != IPA_CMD_MODCCID && 63076b11f8eSUrsula Braun cmd->hdr.command != IPA_CMD_SET_DIAG_ASS) 631d19b93f4SJulian Wiedmann qeth_issue_ipa_msg(cmd, cmd->hdr.return_code, card); 6324a71df50SFrank Blaschka return cmd; 633d19b93f4SJulian Wiedmann } 634d19b93f4SJulian Wiedmann 635d19b93f4SJulian Wiedmann /* handle unsolicited event: */ 6364a71df50SFrank Blaschka switch (cmd->hdr.command) { 6374a71df50SFrank Blaschka case IPA_CMD_STOPLAN: 638d19b93f4SJulian Wiedmann if (cmd->hdr.return_code == IPA_RC_VEPA_TO_VEB_TRANSITION) { 6390f54761dSStefan Raspl dev_err(&card->gdev->dev, 640d19b93f4SJulian Wiedmann "Interface %s is down because the adjacent port is no longer in reflective relay mode\n", 6410f54761dSStefan Raspl QETH_CARD_IFNAME(card)); 6420f54761dSStefan Raspl qeth_close_dev(card); 6430f54761dSStefan Raspl } else { 64474eacdb9SFrank Blaschka dev_warn(&card->gdev->dev, 645d19b93f4SJulian Wiedmann "The link for interface %s on CHPID 0x%X failed\n", 646d19b93f4SJulian Wiedmann QETH_CARD_IFNAME(card), card->info.chpid); 647d19b93f4SJulian Wiedmann qeth_issue_ipa_msg(cmd, cmd->hdr.return_code, card); 6484a71df50SFrank Blaschka netif_carrier_off(card->dev); 64991cc98f5SJulian Wiedmann } 6504a71df50SFrank Blaschka return NULL; 6514a71df50SFrank Blaschka case IPA_CMD_STARTLAN: 65274eacdb9SFrank Blaschka dev_info(&card->gdev->dev, 653d19b93f4SJulian Wiedmann "The link for %s on CHPID 0x%X has been restored\n", 654d19b93f4SJulian Wiedmann QETH_CARD_IFNAME(card), card->info.chpid); 6551da74b1cSFrank Blaschka if (card->info.hwtrap) 6561da74b1cSFrank Blaschka card->info.hwtrap = 2; 6574a71df50SFrank Blaschka qeth_schedule_recovery(card); 6584a71df50SFrank Blaschka return NULL; 6599c23f4daSEugene Crosser case IPA_CMD_SETBRIDGEPORT_IQD: 6609c23f4daSEugene Crosser case IPA_CMD_SETBRIDGEPORT_OSA: 6619f48b9dbSEugene Crosser case IPA_CMD_ADDRESS_CHANGE_NOTIF: 662d19b93f4SJulian Wiedmann if (card->discipline->control_event_handler(card, cmd)) 663c044dc21SEugene Crosser return cmd; 6649f48b9dbSEugene Crosser return NULL; 6654a71df50SFrank Blaschka case IPA_CMD_MODCCID: 6664a71df50SFrank Blaschka return cmd; 6674a71df50SFrank Blaschka case IPA_CMD_REGISTER_LOCAL_ADDR: 668847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "irla"); 66968bba116SJulian Wiedmann return NULL; 6704a71df50SFrank Blaschka case IPA_CMD_UNREGISTER_LOCAL_ADDR: 671847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "urla"); 67268bba116SJulian Wiedmann return NULL; 6734a71df50SFrank Blaschka default: 674d19b93f4SJulian Wiedmann QETH_DBF_MESSAGE(2, "Received data is IPA but not a reply!\n"); 6754a71df50SFrank Blaschka return cmd; 6764a71df50SFrank Blaschka } 677d19b93f4SJulian Wiedmann } 6784a71df50SFrank Blaschka 6794a71df50SFrank Blaschka void qeth_clear_ipacmd_list(struct qeth_card *card) 6804a71df50SFrank Blaschka { 6810951c6baSJulian Wiedmann struct qeth_reply *reply; 6824a71df50SFrank Blaschka unsigned long flags; 6834a71df50SFrank Blaschka 684847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "clipalst"); 6854a71df50SFrank Blaschka 6864a71df50SFrank Blaschka spin_lock_irqsave(&card->lock, flags); 6870951c6baSJulian Wiedmann list_for_each_entry(reply, &card->cmd_waiter_list, list) { 6884a71df50SFrank Blaschka reply->rc = -EIO; 6890951c6baSJulian Wiedmann qeth_notify_reply(reply); 6904a71df50SFrank Blaschka } 6914a71df50SFrank Blaschka spin_unlock_irqrestore(&card->lock, flags); 6924a71df50SFrank Blaschka } 6934a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list); 6944a71df50SFrank Blaschka 6955113fec0SUrsula Braun static int qeth_check_idx_response(struct qeth_card *card, 6965113fec0SUrsula Braun unsigned char *buffer) 6974a71df50SFrank Blaschka { 6984a71df50SFrank Blaschka if (!buffer) 6994a71df50SFrank Blaschka return 0; 7004a71df50SFrank Blaschka 701d11ba0c4SPeter Tiedemann QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN); 7024a71df50SFrank Blaschka if ((buffer[2] & 0xc0) == 0xc0) { 703e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "received an IDX TERMINATE with cause code %#04x\n", 704d857e111SJulian Wiedmann buffer[4]); 705847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "ckidxres"); 706847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, " idxterm"); 707847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 2, " rc%d", -EIO); 7085113fec0SUrsula Braun if (buffer[4] == 0xf6) { 7095113fec0SUrsula Braun dev_err(&card->gdev->dev, 7105113fec0SUrsula Braun "The qeth device is not configured " 7115113fec0SUrsula Braun "for the OSI layer required by z/VM\n"); 7125113fec0SUrsula Braun return -EPERM; 7135113fec0SUrsula Braun } 7144a71df50SFrank Blaschka return -EIO; 7154a71df50SFrank Blaschka } 7164a71df50SFrank Blaschka return 0; 7174a71df50SFrank Blaschka } 7184a71df50SFrank Blaschka 7194a71df50SFrank Blaschka static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel) 7204a71df50SFrank Blaschka { 7214a71df50SFrank Blaschka __u8 index; 7224a71df50SFrank Blaschka 7234a71df50SFrank Blaschka index = channel->io_buf_no; 7244a71df50SFrank Blaschka do { 7254a71df50SFrank Blaschka if (channel->iob[index].state == BUF_STATE_FREE) { 7264a71df50SFrank Blaschka channel->iob[index].state = BUF_STATE_LOCKED; 7274a71df50SFrank Blaschka channel->io_buf_no = (channel->io_buf_no + 1) % 7284a71df50SFrank Blaschka QETH_CMD_BUFFER_NO; 7294a71df50SFrank Blaschka memset(channel->iob[index].data, 0, QETH_BUFSIZE); 7304a71df50SFrank Blaschka return channel->iob + index; 7314a71df50SFrank Blaschka } 7324a71df50SFrank Blaschka index = (index + 1) % QETH_CMD_BUFFER_NO; 7334a71df50SFrank Blaschka } while (index != channel->io_buf_no); 7344a71df50SFrank Blaschka 7354a71df50SFrank Blaschka return NULL; 7364a71df50SFrank Blaschka } 7374a71df50SFrank Blaschka 7384a71df50SFrank Blaschka void qeth_release_buffer(struct qeth_channel *channel, 7394a71df50SFrank Blaschka struct qeth_cmd_buffer *iob) 7404a71df50SFrank Blaschka { 7414a71df50SFrank Blaschka unsigned long flags; 7424a71df50SFrank Blaschka 7434a71df50SFrank Blaschka spin_lock_irqsave(&channel->iob_lock, flags); 7444a71df50SFrank Blaschka iob->state = BUF_STATE_FREE; 7454a71df50SFrank Blaschka iob->callback = qeth_send_control_data_cb; 74654daaca7SJulian Wiedmann if (iob->reply) { 74754daaca7SJulian Wiedmann qeth_put_reply(iob->reply); 74854daaca7SJulian Wiedmann iob->reply = NULL; 74954daaca7SJulian Wiedmann } 7504a71df50SFrank Blaschka spin_unlock_irqrestore(&channel->iob_lock, flags); 751039055b9SUrsula Braun wake_up(&channel->wait_q); 7524a71df50SFrank Blaschka } 7534a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_release_buffer); 7544a71df50SFrank Blaschka 7558f6637b8SJulian Wiedmann static void qeth_release_buffer_cb(struct qeth_card *card, 7568f6637b8SJulian Wiedmann struct qeth_channel *channel, 7578f6637b8SJulian Wiedmann struct qeth_cmd_buffer *iob) 7588f6637b8SJulian Wiedmann { 7598f6637b8SJulian Wiedmann qeth_release_buffer(channel, iob); 7608f6637b8SJulian Wiedmann } 7618f6637b8SJulian Wiedmann 76254daaca7SJulian Wiedmann static void qeth_cancel_cmd(struct qeth_cmd_buffer *iob, int rc) 76354daaca7SJulian Wiedmann { 76454daaca7SJulian Wiedmann struct qeth_reply *reply = iob->reply; 76554daaca7SJulian Wiedmann 76654daaca7SJulian Wiedmann if (reply) { 76754daaca7SJulian Wiedmann reply->rc = rc; 76854daaca7SJulian Wiedmann qeth_notify_reply(reply); 76954daaca7SJulian Wiedmann } 77054daaca7SJulian Wiedmann qeth_release_buffer(iob->channel, iob); 77154daaca7SJulian Wiedmann } 77254daaca7SJulian Wiedmann 7734a71df50SFrank Blaschka static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel) 7744a71df50SFrank Blaschka { 7754a71df50SFrank Blaschka struct qeth_cmd_buffer *buffer = NULL; 7764a71df50SFrank Blaschka unsigned long flags; 7774a71df50SFrank Blaschka 7784a71df50SFrank Blaschka spin_lock_irqsave(&channel->iob_lock, flags); 7794a71df50SFrank Blaschka buffer = __qeth_get_buffer(channel); 7804a71df50SFrank Blaschka spin_unlock_irqrestore(&channel->iob_lock, flags); 7814a71df50SFrank Blaschka return buffer; 7824a71df50SFrank Blaschka } 7834a71df50SFrank Blaschka 7844a71df50SFrank Blaschka struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *channel) 7854a71df50SFrank Blaschka { 7864a71df50SFrank Blaschka struct qeth_cmd_buffer *buffer; 7874a71df50SFrank Blaschka wait_event(channel->wait_q, 7884a71df50SFrank Blaschka ((buffer = qeth_get_buffer(channel)) != NULL)); 7894a71df50SFrank Blaschka return buffer; 7904a71df50SFrank Blaschka } 7914a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_wait_for_buffer); 7924a71df50SFrank Blaschka 7934a71df50SFrank Blaschka void qeth_clear_cmd_buffers(struct qeth_channel *channel) 7944a71df50SFrank Blaschka { 7954a71df50SFrank Blaschka int cnt; 7964a71df50SFrank Blaschka 7974a71df50SFrank Blaschka for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) 7984a71df50SFrank Blaschka qeth_release_buffer(channel, &channel->iob[cnt]); 7994a71df50SFrank Blaschka channel->io_buf_no = 0; 8004a71df50SFrank Blaschka } 8014a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers); 8024a71df50SFrank Blaschka 8038f6637b8SJulian Wiedmann static void qeth_send_control_data_cb(struct qeth_card *card, 8048f6637b8SJulian Wiedmann struct qeth_channel *channel, 8054a71df50SFrank Blaschka struct qeth_cmd_buffer *iob) 8064a71df50SFrank Blaschka { 807d19b93f4SJulian Wiedmann struct qeth_ipa_cmd *cmd = NULL; 8080951c6baSJulian Wiedmann struct qeth_reply *reply = NULL; 8090951c6baSJulian Wiedmann struct qeth_reply *r; 8104a71df50SFrank Blaschka unsigned long flags; 8115113fec0SUrsula Braun int rc = 0; 8124a71df50SFrank Blaschka 813847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "sndctlcb"); 8145113fec0SUrsula Braun rc = qeth_check_idx_response(card, iob->data); 8155113fec0SUrsula Braun switch (rc) { 8165113fec0SUrsula Braun case 0: 8175113fec0SUrsula Braun break; 8185113fec0SUrsula Braun case -EIO: 8194a71df50SFrank Blaschka qeth_clear_ipacmd_list(card); 8204a71df50SFrank Blaschka qeth_schedule_recovery(card); 82101fc3e86SUrsula Braun /* fall through */ 8225113fec0SUrsula Braun default: 8234a71df50SFrank Blaschka goto out; 8244a71df50SFrank Blaschka } 8254a71df50SFrank Blaschka 826d19b93f4SJulian Wiedmann if (IS_IPA(iob->data)) { 827d19b93f4SJulian Wiedmann cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data); 828d19b93f4SJulian Wiedmann cmd = qeth_check_ipa_data(card, cmd); 829d782d80fSJulian Wiedmann if (!cmd) 8304a71df50SFrank Blaschka goto out; 831d782d80fSJulian Wiedmann if (IS_OSN(card) && card->osn_info.assist_cb && 832d782d80fSJulian Wiedmann cmd->hdr.command != IPA_CMD_STARTLAN) { 8334a71df50SFrank Blaschka card->osn_info.assist_cb(card->dev, cmd); 8344a71df50SFrank Blaschka goto out; 8354a71df50SFrank Blaschka } 836d782d80fSJulian Wiedmann } else { 837d782d80fSJulian Wiedmann /* non-IPA commands should only flow during initialization */ 838d782d80fSJulian Wiedmann if (card->state != CARD_STATE_DOWN) 839d782d80fSJulian Wiedmann goto out; 840d782d80fSJulian Wiedmann } 8414a71df50SFrank Blaschka 8420951c6baSJulian Wiedmann /* match against pending cmd requests */ 8434a71df50SFrank Blaschka spin_lock_irqsave(&card->lock, flags); 8440951c6baSJulian Wiedmann list_for_each_entry(r, &card->cmd_waiter_list, list) { 8450951c6baSJulian Wiedmann if ((r->seqno == QETH_IDX_COMMAND_SEQNO) || 8460951c6baSJulian Wiedmann (cmd && (r->seqno == cmd->hdr.seqno))) { 8470951c6baSJulian Wiedmann reply = r; 8480951c6baSJulian Wiedmann /* take the object outside the lock */ 8494a71df50SFrank Blaschka qeth_get_reply(reply); 8500951c6baSJulian Wiedmann break; 8510951c6baSJulian Wiedmann } 8520951c6baSJulian Wiedmann } 8534a71df50SFrank Blaschka spin_unlock_irqrestore(&card->lock, flags); 8540951c6baSJulian Wiedmann 8550951c6baSJulian Wiedmann if (!reply) 8560951c6baSJulian Wiedmann goto out; 8570951c6baSJulian Wiedmann 8584b7ae122SJulian Wiedmann if (!reply->callback) { 8594b7ae122SJulian Wiedmann rc = 0; 8604b7ae122SJulian Wiedmann } else { 8614a71df50SFrank Blaschka if (cmd) { 8620951c6baSJulian Wiedmann reply->offset = (u16)((char *)cmd - (char *)iob->data); 8634b7ae122SJulian Wiedmann rc = reply->callback(card, reply, (unsigned long)cmd); 8644b7ae122SJulian Wiedmann } else { 8654b7ae122SJulian Wiedmann rc = reply->callback(card, reply, (unsigned long)iob); 8664a71df50SFrank Blaschka } 8674b7ae122SJulian Wiedmann } 8684b7ae122SJulian Wiedmann 8694b7ae122SJulian Wiedmann if (rc <= 0) { 8704a71df50SFrank Blaschka if (cmd) 8714a71df50SFrank Blaschka reply->rc = (u16) cmd->hdr.return_code; 8720951c6baSJulian Wiedmann 8734b7ae122SJulian Wiedmann /* for callbacks with proper errnos: */ 8744b7ae122SJulian Wiedmann if (rc < 0) 8754b7ae122SJulian Wiedmann reply->rc = rc; 8760951c6baSJulian Wiedmann qeth_notify_reply(reply); 8774b7ae122SJulian Wiedmann } 8784b7ae122SJulian Wiedmann 8794a71df50SFrank Blaschka qeth_put_reply(reply); 8800951c6baSJulian Wiedmann 8814a71df50SFrank Blaschka out: 8824a71df50SFrank Blaschka memcpy(&card->seqno.pdu_hdr_ack, 8834a71df50SFrank Blaschka QETH_PDU_HEADER_SEQ_NO(iob->data), 8844a71df50SFrank Blaschka QETH_SEQ_NO_LENGTH); 8854a71df50SFrank Blaschka qeth_release_buffer(channel, iob); 8864a71df50SFrank Blaschka } 8874a71df50SFrank Blaschka 8884a71df50SFrank Blaschka static int qeth_set_thread_start_bit(struct qeth_card *card, 8894a71df50SFrank Blaschka unsigned long thread) 8904a71df50SFrank Blaschka { 8914a71df50SFrank Blaschka unsigned long flags; 8924a71df50SFrank Blaschka 8934a71df50SFrank Blaschka spin_lock_irqsave(&card->thread_mask_lock, flags); 8944a71df50SFrank Blaschka if (!(card->thread_allowed_mask & thread) || 8954a71df50SFrank Blaschka (card->thread_start_mask & thread)) { 8964a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 8974a71df50SFrank Blaschka return -EPERM; 8984a71df50SFrank Blaschka } 8994a71df50SFrank Blaschka card->thread_start_mask |= thread; 9004a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 9014a71df50SFrank Blaschka return 0; 9024a71df50SFrank Blaschka } 9034a71df50SFrank Blaschka 9044a71df50SFrank Blaschka void qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread) 9054a71df50SFrank Blaschka { 9064a71df50SFrank Blaschka unsigned long flags; 9074a71df50SFrank Blaschka 9084a71df50SFrank Blaschka spin_lock_irqsave(&card->thread_mask_lock, flags); 9094a71df50SFrank Blaschka card->thread_start_mask &= ~thread; 9104a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 9114a71df50SFrank Blaschka wake_up(&card->wait_q); 9124a71df50SFrank Blaschka } 9134a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit); 9144a71df50SFrank Blaschka 9154a71df50SFrank Blaschka void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread) 9164a71df50SFrank Blaschka { 9174a71df50SFrank Blaschka unsigned long flags; 9184a71df50SFrank Blaschka 9194a71df50SFrank Blaschka spin_lock_irqsave(&card->thread_mask_lock, flags); 9204a71df50SFrank Blaschka card->thread_running_mask &= ~thread; 9214a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 9221063e432SJulian Wiedmann wake_up_all(&card->wait_q); 9234a71df50SFrank Blaschka } 9244a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit); 9254a71df50SFrank Blaschka 9264a71df50SFrank Blaschka static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread) 9274a71df50SFrank Blaschka { 9284a71df50SFrank Blaschka unsigned long flags; 9294a71df50SFrank Blaschka int rc = 0; 9304a71df50SFrank Blaschka 9314a71df50SFrank Blaschka spin_lock_irqsave(&card->thread_mask_lock, flags); 9324a71df50SFrank Blaschka if (card->thread_start_mask & thread) { 9334a71df50SFrank Blaschka if ((card->thread_allowed_mask & thread) && 9344a71df50SFrank Blaschka !(card->thread_running_mask & thread)) { 9354a71df50SFrank Blaschka rc = 1; 9364a71df50SFrank Blaschka card->thread_start_mask &= ~thread; 9374a71df50SFrank Blaschka card->thread_running_mask |= thread; 9384a71df50SFrank Blaschka } else 9394a71df50SFrank Blaschka rc = -EPERM; 9404a71df50SFrank Blaschka } 9414a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 9424a71df50SFrank Blaschka return rc; 9434a71df50SFrank Blaschka } 9444a71df50SFrank Blaschka 9454a71df50SFrank Blaschka int qeth_do_run_thread(struct qeth_card *card, unsigned long thread) 9464a71df50SFrank Blaschka { 9474a71df50SFrank Blaschka int rc = 0; 9484a71df50SFrank Blaschka 9494a71df50SFrank Blaschka wait_event(card->wait_q, 9504a71df50SFrank Blaschka (rc = __qeth_do_run_thread(card, thread)) >= 0); 9514a71df50SFrank Blaschka return rc; 9524a71df50SFrank Blaschka } 9534a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_do_run_thread); 9544a71df50SFrank Blaschka 9554a71df50SFrank Blaschka void qeth_schedule_recovery(struct qeth_card *card) 9564a71df50SFrank Blaschka { 957847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "startrec"); 9584a71df50SFrank Blaschka if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0) 9594a71df50SFrank Blaschka schedule_work(&card->kernel_thread_starter); 9604a71df50SFrank Blaschka } 9614a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_schedule_recovery); 9624a71df50SFrank Blaschka 9638d908eb0SJulian Wiedmann static int qeth_get_problem(struct qeth_card *card, struct ccw_device *cdev, 9648d908eb0SJulian Wiedmann struct irb *irb) 9654a71df50SFrank Blaschka { 9664a71df50SFrank Blaschka int dstat, cstat; 9674a71df50SFrank Blaschka char *sense; 9684a71df50SFrank Blaschka 9694a71df50SFrank Blaschka sense = (char *) irb->ecw; 97023d805b6SPeter Oberparleiter cstat = irb->scsw.cmd.cstat; 97123d805b6SPeter Oberparleiter dstat = irb->scsw.cmd.dstat; 9724a71df50SFrank Blaschka 9734a71df50SFrank Blaschka if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK | 9744a71df50SFrank Blaschka SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK | 9754a71df50SFrank Blaschka SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) { 976847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "CGENCHK"); 97774eacdb9SFrank Blaschka dev_warn(&cdev->dev, "The qeth device driver " 97874eacdb9SFrank Blaschka "failed to recover an error on the device\n"); 979e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "check on channel %x with dstat=%#x, cstat=%#x\n", 980e19e5be8SJulian Wiedmann CCW_DEVID(cdev), dstat, cstat); 9814a71df50SFrank Blaschka print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET, 9824a71df50SFrank Blaschka 16, 1, irb, 64, 1); 9834a71df50SFrank Blaschka return 1; 9844a71df50SFrank Blaschka } 9854a71df50SFrank Blaschka 9864a71df50SFrank Blaschka if (dstat & DEV_STAT_UNIT_CHECK) { 9874a71df50SFrank Blaschka if (sense[SENSE_RESETTING_EVENT_BYTE] & 9884a71df50SFrank Blaschka SENSE_RESETTING_EVENT_FLAG) { 989847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "REVIND"); 9904a71df50SFrank Blaschka return 1; 9914a71df50SFrank Blaschka } 9924a71df50SFrank Blaschka if (sense[SENSE_COMMAND_REJECT_BYTE] & 9934a71df50SFrank Blaschka SENSE_COMMAND_REJECT_FLAG) { 994847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "CMDREJi"); 99528a7e4c9SUrsula Braun return 1; 9964a71df50SFrank Blaschka } 9974a71df50SFrank Blaschka if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) { 998847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "AFFE"); 9994a71df50SFrank Blaschka return 1; 10004a71df50SFrank Blaschka } 10014a71df50SFrank Blaschka if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) { 1002847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "ZEROSEN"); 10034a71df50SFrank Blaschka return 0; 10044a71df50SFrank Blaschka } 1005847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "DGENCHK"); 10064a71df50SFrank Blaschka return 1; 10074a71df50SFrank Blaschka } 10084a71df50SFrank Blaschka return 0; 10094a71df50SFrank Blaschka } 10104a71df50SFrank Blaschka 101154daaca7SJulian Wiedmann static int qeth_check_irb_error(struct qeth_card *card, struct ccw_device *cdev, 101254daaca7SJulian Wiedmann unsigned long intparm, struct irb *irb) 10134a71df50SFrank Blaschka { 10148d908eb0SJulian Wiedmann if (!IS_ERR(irb)) 10154a71df50SFrank Blaschka return 0; 10164a71df50SFrank Blaschka 10174a71df50SFrank Blaschka switch (PTR_ERR(irb)) { 10184a71df50SFrank Blaschka case -EIO: 1019e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "i/o-error on channel %x\n", 1020e19e5be8SJulian Wiedmann CCW_DEVID(cdev)); 1021847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "ckirberr"); 1022847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 2, " rc%d", -EIO); 102354daaca7SJulian Wiedmann return -EIO; 10244a71df50SFrank Blaschka case -ETIMEDOUT: 102574eacdb9SFrank Blaschka dev_warn(&cdev->dev, "A hardware operation timed out" 102674eacdb9SFrank Blaschka " on the device\n"); 1027847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "ckirberr"); 1028847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 2, " rc%d", -ETIMEDOUT); 10294a71df50SFrank Blaschka if (intparm == QETH_RCD_PARM) { 1030e95051ffSRickard Strandqvist if (card->data.ccwdev == cdev) { 10314a71df50SFrank Blaschka card->data.state = CH_STATE_DOWN; 10324a71df50SFrank Blaschka wake_up(&card->wait_q); 10334a71df50SFrank Blaschka } 10344a71df50SFrank Blaschka } 103554daaca7SJulian Wiedmann return -ETIMEDOUT; 10364a71df50SFrank Blaschka default: 1037e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "unknown error %ld on channel %x\n", 1038e19e5be8SJulian Wiedmann PTR_ERR(irb), CCW_DEVID(cdev)); 1039847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "ckirberr"); 1040847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, " rc???"); 10414a71df50SFrank Blaschka return PTR_ERR(irb); 10424a71df50SFrank Blaschka } 104354daaca7SJulian Wiedmann } 10444a71df50SFrank Blaschka 10454a71df50SFrank Blaschka static void qeth_irq(struct ccw_device *cdev, unsigned long intparm, 10464a71df50SFrank Blaschka struct irb *irb) 10474a71df50SFrank Blaschka { 10484a71df50SFrank Blaschka int rc; 10494a71df50SFrank Blaschka int cstat, dstat; 1050db71bbbdSJulian Wiedmann struct qeth_cmd_buffer *iob = NULL; 10518d908eb0SJulian Wiedmann struct ccwgroup_device *gdev; 10524a71df50SFrank Blaschka struct qeth_channel *channel; 10534a71df50SFrank Blaschka struct qeth_card *card; 10544a71df50SFrank Blaschka 10558d908eb0SJulian Wiedmann /* while we hold the ccwdev lock, this stays valid: */ 10568d908eb0SJulian Wiedmann gdev = dev_get_drvdata(&cdev->dev); 10578d908eb0SJulian Wiedmann card = dev_get_drvdata(&gdev->dev); 10584a71df50SFrank Blaschka if (!card) 10594a71df50SFrank Blaschka return; 10604a71df50SFrank Blaschka 1061847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "irq"); 1062847a50fdSCarsten Otte 10634a71df50SFrank Blaschka if (card->read.ccwdev == cdev) { 10644a71df50SFrank Blaschka channel = &card->read; 1065847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "read"); 10664a71df50SFrank Blaschka } else if (card->write.ccwdev == cdev) { 10674a71df50SFrank Blaschka channel = &card->write; 1068847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "write"); 10694a71df50SFrank Blaschka } else { 10704a71df50SFrank Blaschka channel = &card->data; 1071847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "data"); 10724a71df50SFrank Blaschka } 1073db71bbbdSJulian Wiedmann 1074db71bbbdSJulian Wiedmann if (qeth_intparm_is_iob(intparm)) 1075db71bbbdSJulian Wiedmann iob = (struct qeth_cmd_buffer *) __va((addr_t)intparm); 1076db71bbbdSJulian Wiedmann 107754daaca7SJulian Wiedmann rc = qeth_check_irb_error(card, cdev, intparm, irb); 107854daaca7SJulian Wiedmann if (rc) { 1079db71bbbdSJulian Wiedmann /* IO was terminated, free its resources. */ 1080db71bbbdSJulian Wiedmann if (iob) 108154daaca7SJulian Wiedmann qeth_cancel_cmd(iob, rc); 1082db71bbbdSJulian Wiedmann atomic_set(&channel->irq_pending, 0); 1083db71bbbdSJulian Wiedmann wake_up(&card->wait_q); 1084db71bbbdSJulian Wiedmann return; 1085db71bbbdSJulian Wiedmann } 1086db71bbbdSJulian Wiedmann 10874a71df50SFrank Blaschka atomic_set(&channel->irq_pending, 0); 10884a71df50SFrank Blaschka 108923d805b6SPeter Oberparleiter if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC)) 10904a71df50SFrank Blaschka channel->state = CH_STATE_STOPPED; 10914a71df50SFrank Blaschka 109223d805b6SPeter Oberparleiter if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC)) 10934a71df50SFrank Blaschka channel->state = CH_STATE_HALTED; 10944a71df50SFrank Blaschka 10954a71df50SFrank Blaschka /*let's wake up immediately on data channel*/ 10964a71df50SFrank Blaschka if ((channel == &card->data) && (intparm != 0) && 10974a71df50SFrank Blaschka (intparm != QETH_RCD_PARM)) 10984a71df50SFrank Blaschka goto out; 10994a71df50SFrank Blaschka 11004a71df50SFrank Blaschka if (intparm == QETH_CLEAR_CHANNEL_PARM) { 1101847a50fdSCarsten Otte QETH_CARD_TEXT(card, 6, "clrchpar"); 11024a71df50SFrank Blaschka /* we don't have to handle this further */ 11034a71df50SFrank Blaschka intparm = 0; 11044a71df50SFrank Blaschka } 11054a71df50SFrank Blaschka if (intparm == QETH_HALT_CHANNEL_PARM) { 1106847a50fdSCarsten Otte QETH_CARD_TEXT(card, 6, "hltchpar"); 11074a71df50SFrank Blaschka /* we don't have to handle this further */ 11084a71df50SFrank Blaschka intparm = 0; 11094a71df50SFrank Blaschka } 1110db71bbbdSJulian Wiedmann 1111db71bbbdSJulian Wiedmann cstat = irb->scsw.cmd.cstat; 1112db71bbbdSJulian Wiedmann dstat = irb->scsw.cmd.dstat; 1113db71bbbdSJulian Wiedmann 11144a71df50SFrank Blaschka if ((dstat & DEV_STAT_UNIT_EXCEP) || 11154a71df50SFrank Blaschka (dstat & DEV_STAT_UNIT_CHECK) || 11164a71df50SFrank Blaschka (cstat)) { 11174a71df50SFrank Blaschka if (irb->esw.esw0.erw.cons) { 111874eacdb9SFrank Blaschka dev_warn(&channel->ccwdev->dev, 111974eacdb9SFrank Blaschka "The qeth device driver failed to recover " 112074eacdb9SFrank Blaschka "an error on the device\n"); 1121e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "sense data available on channel %x: cstat %#X dstat %#X\n", 1122e19e5be8SJulian Wiedmann CCW_DEVID(channel->ccwdev), cstat, 1123e19e5be8SJulian Wiedmann dstat); 11244a71df50SFrank Blaschka print_hex_dump(KERN_WARNING, "qeth: irb ", 11254a71df50SFrank Blaschka DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1); 11264a71df50SFrank Blaschka print_hex_dump(KERN_WARNING, "qeth: sense data ", 11274a71df50SFrank Blaschka DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1); 11284a71df50SFrank Blaschka } 11294a71df50SFrank Blaschka if (intparm == QETH_RCD_PARM) { 11304a71df50SFrank Blaschka channel->state = CH_STATE_DOWN; 11314a71df50SFrank Blaschka goto out; 11324a71df50SFrank Blaschka } 11338d908eb0SJulian Wiedmann rc = qeth_get_problem(card, cdev, irb); 11344a71df50SFrank Blaschka if (rc) { 1135a6c3d939SJulian Wiedmann card->read_or_write_problem = 1; 11365065b2ddSJulian Wiedmann if (iob) 113754daaca7SJulian Wiedmann qeth_cancel_cmd(iob, rc); 113828a7e4c9SUrsula Braun qeth_clear_ipacmd_list(card); 11394a71df50SFrank Blaschka qeth_schedule_recovery(card); 11404a71df50SFrank Blaschka goto out; 11414a71df50SFrank Blaschka } 11424a71df50SFrank Blaschka } 11434a71df50SFrank Blaschka 11444a71df50SFrank Blaschka if (intparm == QETH_RCD_PARM) { 11454a71df50SFrank Blaschka channel->state = CH_STATE_RCD_DONE; 11464a71df50SFrank Blaschka goto out; 11474a71df50SFrank Blaschka } 11484a71df50SFrank Blaschka if (channel == &card->data) 11494a71df50SFrank Blaschka return; 11504a71df50SFrank Blaschka if (channel == &card->read && 11514a71df50SFrank Blaschka channel->state == CH_STATE_UP) 115217bf8c9bSJulian Wiedmann __qeth_issue_next_read(card); 11534a71df50SFrank Blaschka 1154db71bbbdSJulian Wiedmann if (iob && iob->callback) 11558f6637b8SJulian Wiedmann iob->callback(card, iob->channel, iob); 11564a71df50SFrank Blaschka 11574a71df50SFrank Blaschka out: 11584a71df50SFrank Blaschka wake_up(&card->wait_q); 11594a71df50SFrank Blaschka return; 11604a71df50SFrank Blaschka } 11614a71df50SFrank Blaschka 1162b3332930SFrank Blaschka static void qeth_notify_skbs(struct qeth_qdio_out_q *q, 1163b3332930SFrank Blaschka struct qeth_qdio_out_buffer *buf, 1164b3332930SFrank Blaschka enum iucv_tx_notify notification) 1165b3332930SFrank Blaschka { 1166b3332930SFrank Blaschka struct sk_buff *skb; 1167b3332930SFrank Blaschka 1168dc149e37SJulian Wiedmann skb_queue_walk(&buf->skb_list, skb) { 1169b3332930SFrank Blaschka QETH_CARD_TEXT_(q->card, 5, "skbn%d", notification); 1170b3332930SFrank Blaschka QETH_CARD_TEXT_(q->card, 5, "%lx", (long) skb); 11716a3123d0SJulian Wiedmann if (skb->protocol == htons(ETH_P_AF_IUCV) && skb->sk) 11726a3123d0SJulian Wiedmann iucv_sk(skb->sk)->sk_txnotify(skb, notification); 1173b3332930SFrank Blaschka } 1174b3332930SFrank Blaschka } 1175b3332930SFrank Blaschka 1176b3332930SFrank Blaschka static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf) 1177b3332930SFrank Blaschka { 117872861ae7SEinar Lueck /* release may never happen from within CQ tasklet scope */ 117918af5c17SStefan Raspl WARN_ON_ONCE(atomic_read(&buf->state) == QETH_QDIO_BUF_IN_CQ); 1180b3332930SFrank Blaschka 11816a3123d0SJulian Wiedmann if (atomic_read(&buf->state) == QETH_QDIO_BUF_PENDING) 11826a3123d0SJulian Wiedmann qeth_notify_skbs(buf->q, buf, TX_NOTIFY_GENERALERROR); 11836a3123d0SJulian Wiedmann 1184dc149e37SJulian Wiedmann __skb_queue_purge(&buf->skb_list); 1185b3332930SFrank Blaschka } 1186b3332930SFrank Blaschka 1187b67d801fSUrsula Braun static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue, 11883b346c18SJulian Wiedmann struct qeth_qdio_out_buffer *buf) 11894a71df50SFrank Blaschka { 11904a71df50SFrank Blaschka int i; 11914a71df50SFrank Blaschka 11924a71df50SFrank Blaschka /* is PCI flag set on buffer? */ 11933ec90878SJan Glauber if (buf->buffer->element[0].sflags & SBAL_SFLAGS0_PCI_REQ) 11944a71df50SFrank Blaschka atomic_dec(&queue->set_pci_flags_count); 11954a71df50SFrank Blaschka 1196b3332930SFrank Blaschka qeth_release_skbs(buf); 11973b346c18SJulian Wiedmann 11984a71df50SFrank Blaschka for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) { 1199683d718aSFrank Blaschka if (buf->buffer->element[i].addr && buf->is_header[i]) 1200683d718aSFrank Blaschka kmem_cache_free(qeth_core_header_cache, 1201683d718aSFrank Blaschka buf->buffer->element[i].addr); 1202683d718aSFrank Blaschka buf->is_header[i] = 0; 12034a71df50SFrank Blaschka } 12043b346c18SJulian Wiedmann 12053b346c18SJulian Wiedmann qeth_scrub_qdio_buffer(buf->buffer, 12063b346c18SJulian Wiedmann QETH_MAX_BUFFER_ELEMENTS(queue->card)); 12074a71df50SFrank Blaschka buf->next_element_to_fill = 0; 12083b346c18SJulian Wiedmann atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY); 12090da9581dSEinar Lueck } 12100da9581dSEinar Lueck 12110da9581dSEinar Lueck static void qeth_clear_outq_buffers(struct qeth_qdio_out_q *q, int free) 12120da9581dSEinar Lueck { 12130da9581dSEinar Lueck int j; 12140da9581dSEinar Lueck 12150da9581dSEinar Lueck for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { 12160da9581dSEinar Lueck if (!q->bufs[j]) 12170da9581dSEinar Lueck continue; 121872861ae7SEinar Lueck qeth_cleanup_handled_pending(q, j, 1); 12193b346c18SJulian Wiedmann qeth_clear_output_buffer(q, q->bufs[j]); 12200da9581dSEinar Lueck if (free) { 12210da9581dSEinar Lueck kmem_cache_free(qeth_qdio_outbuf_cache, q->bufs[j]); 12220da9581dSEinar Lueck q->bufs[j] = NULL; 12230da9581dSEinar Lueck } 12240da9581dSEinar Lueck } 12254a71df50SFrank Blaschka } 12264a71df50SFrank Blaschka 12274a71df50SFrank Blaschka void qeth_clear_qdio_buffers(struct qeth_card *card) 12284a71df50SFrank Blaschka { 12290da9581dSEinar Lueck int i; 12304a71df50SFrank Blaschka 1231847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "clearqdbf"); 12324a71df50SFrank Blaschka /* clear outbound buffers to free skbs */ 12330da9581dSEinar Lueck for (i = 0; i < card->qdio.no_out_queues; ++i) { 12344a71df50SFrank Blaschka if (card->qdio.out_qs[i]) { 12350da9581dSEinar Lueck qeth_clear_outq_buffers(card->qdio.out_qs[i], 0); 12360da9581dSEinar Lueck } 12374a71df50SFrank Blaschka } 12384a71df50SFrank Blaschka } 12394a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers); 12404a71df50SFrank Blaschka 12414a71df50SFrank Blaschka static void qeth_free_buffer_pool(struct qeth_card *card) 12424a71df50SFrank Blaschka { 12434a71df50SFrank Blaschka struct qeth_buffer_pool_entry *pool_entry, *tmp; 12444a71df50SFrank Blaschka int i = 0; 12454a71df50SFrank Blaschka list_for_each_entry_safe(pool_entry, tmp, 12464a71df50SFrank Blaschka &card->qdio.init_pool.entry_list, init_list){ 12474a71df50SFrank Blaschka for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) 12484a71df50SFrank Blaschka free_page((unsigned long)pool_entry->elements[i]); 12494a71df50SFrank Blaschka list_del(&pool_entry->init_list); 12504a71df50SFrank Blaschka kfree(pool_entry); 12514a71df50SFrank Blaschka } 12524a71df50SFrank Blaschka } 12534a71df50SFrank Blaschka 12544a71df50SFrank Blaschka static void qeth_clean_channel(struct qeth_channel *channel) 12554a71df50SFrank Blaschka { 1256121ca39aSJulian Wiedmann struct ccw_device *cdev = channel->ccwdev; 12574a71df50SFrank Blaschka int cnt; 12584a71df50SFrank Blaschka 1259d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "freech"); 1260121ca39aSJulian Wiedmann 1261121ca39aSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(cdev)); 1262121ca39aSJulian Wiedmann cdev->handler = NULL; 1263121ca39aSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(cdev)); 1264121ca39aSJulian Wiedmann 12654a71df50SFrank Blaschka for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) 12664a71df50SFrank Blaschka kfree(channel->iob[cnt].data); 1267f15cdaf2SJulian Wiedmann kfree(channel->ccw); 12684a71df50SFrank Blaschka } 12694a71df50SFrank Blaschka 1270121ca39aSJulian Wiedmann static int qeth_setup_channel(struct qeth_channel *channel, bool alloc_buffers) 1271121ca39aSJulian Wiedmann { 1272121ca39aSJulian Wiedmann struct ccw_device *cdev = channel->ccwdev; 1273121ca39aSJulian Wiedmann int cnt; 1274121ca39aSJulian Wiedmann 1275121ca39aSJulian Wiedmann QETH_DBF_TEXT(SETUP, 2, "setupch"); 1276121ca39aSJulian Wiedmann 1277121ca39aSJulian Wiedmann channel->ccw = kmalloc(sizeof(struct ccw1), GFP_KERNEL | GFP_DMA); 1278121ca39aSJulian Wiedmann if (!channel->ccw) 1279121ca39aSJulian Wiedmann return -ENOMEM; 1280121ca39aSJulian Wiedmann channel->state = CH_STATE_DOWN; 1281121ca39aSJulian Wiedmann atomic_set(&channel->irq_pending, 0); 1282121ca39aSJulian Wiedmann init_waitqueue_head(&channel->wait_q); 1283121ca39aSJulian Wiedmann 1284121ca39aSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(cdev)); 1285121ca39aSJulian Wiedmann cdev->handler = qeth_irq; 1286121ca39aSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(cdev)); 1287121ca39aSJulian Wiedmann 1288121ca39aSJulian Wiedmann if (!alloc_buffers) 1289121ca39aSJulian Wiedmann return 0; 1290121ca39aSJulian Wiedmann 1291121ca39aSJulian Wiedmann for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) { 1292500abbf0SJulian Wiedmann channel->iob[cnt].data = kmalloc(QETH_BUFSIZE, 1293500abbf0SJulian Wiedmann GFP_KERNEL | GFP_DMA); 1294121ca39aSJulian Wiedmann if (channel->iob[cnt].data == NULL) 1295121ca39aSJulian Wiedmann break; 1296121ca39aSJulian Wiedmann channel->iob[cnt].state = BUF_STATE_FREE; 1297121ca39aSJulian Wiedmann channel->iob[cnt].channel = channel; 1298121ca39aSJulian Wiedmann channel->iob[cnt].callback = qeth_send_control_data_cb; 1299121ca39aSJulian Wiedmann } 1300121ca39aSJulian Wiedmann if (cnt < QETH_CMD_BUFFER_NO) { 1301121ca39aSJulian Wiedmann qeth_clean_channel(channel); 1302121ca39aSJulian Wiedmann return -ENOMEM; 1303121ca39aSJulian Wiedmann } 1304121ca39aSJulian Wiedmann channel->io_buf_no = 0; 1305121ca39aSJulian Wiedmann spin_lock_init(&channel->iob_lock); 1306121ca39aSJulian Wiedmann 1307121ca39aSJulian Wiedmann return 0; 1308121ca39aSJulian Wiedmann } 1309121ca39aSJulian Wiedmann 1310725b9c04SSebastian Ott static void qeth_set_single_write_queues(struct qeth_card *card) 1311725b9c04SSebastian Ott { 1312725b9c04SSebastian Ott if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) && 1313725b9c04SSebastian Ott (card->qdio.no_out_queues == 4)) 1314725b9c04SSebastian Ott qeth_free_qdio_buffers(card); 1315725b9c04SSebastian Ott 1316725b9c04SSebastian Ott card->qdio.no_out_queues = 1; 1317725b9c04SSebastian Ott if (card->qdio.default_out_queue != 0) 1318725b9c04SSebastian Ott dev_info(&card->gdev->dev, "Priority Queueing not supported\n"); 1319725b9c04SSebastian Ott 1320725b9c04SSebastian Ott card->qdio.default_out_queue = 0; 1321725b9c04SSebastian Ott } 1322725b9c04SSebastian Ott 1323725b9c04SSebastian Ott static void qeth_set_multiple_write_queues(struct qeth_card *card) 1324725b9c04SSebastian Ott { 1325725b9c04SSebastian Ott if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) && 1326725b9c04SSebastian Ott (card->qdio.no_out_queues == 1)) { 1327725b9c04SSebastian Ott qeth_free_qdio_buffers(card); 1328725b9c04SSebastian Ott card->qdio.default_out_queue = 2; 1329725b9c04SSebastian Ott } 1330725b9c04SSebastian Ott card->qdio.no_out_queues = 4; 1331725b9c04SSebastian Ott } 1332725b9c04SSebastian Ott 1333725b9c04SSebastian Ott static void qeth_update_from_chp_desc(struct qeth_card *card) 13344a71df50SFrank Blaschka { 13354a71df50SFrank Blaschka struct ccw_device *ccwdev; 1336ded27d8dSSebastian Ott struct channel_path_desc_fmt0 *chp_dsc; 13374a71df50SFrank Blaschka 13385113fec0SUrsula Braun QETH_DBF_TEXT(SETUP, 2, "chp_desc"); 13394a71df50SFrank Blaschka 13404a71df50SFrank Blaschka ccwdev = card->data.ccwdev; 1341725b9c04SSebastian Ott chp_dsc = ccw_device_get_chp_desc(ccwdev, 0); 1342725b9c04SSebastian Ott if (!chp_dsc) 1343725b9c04SSebastian Ott goto out; 1344725b9c04SSebastian Ott 1345d0ff1f52SUrsula Braun card->info.func_level = 0x4100 + chp_dsc->desc; 1346725b9c04SSebastian Ott if (card->info.type == QETH_CARD_TYPE_IQD) 1347725b9c04SSebastian Ott goto out; 1348725b9c04SSebastian Ott 1349725b9c04SSebastian Ott /* CHPP field bit 6 == 1 -> single queue */ 1350725b9c04SSebastian Ott if ((chp_dsc->chpp & 0x02) == 0x02) 1351725b9c04SSebastian Ott qeth_set_single_write_queues(card); 1352725b9c04SSebastian Ott else 1353725b9c04SSebastian Ott qeth_set_multiple_write_queues(card); 1354725b9c04SSebastian Ott out: 1355d0ff1f52SUrsula Braun kfree(chp_dsc); 13565113fec0SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "nr:%x", card->qdio.no_out_queues); 13575113fec0SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "lvl:%02x", card->info.func_level); 13584a71df50SFrank Blaschka } 13594a71df50SFrank Blaschka 13604a71df50SFrank Blaschka static void qeth_init_qdio_info(struct qeth_card *card) 13614a71df50SFrank Blaschka { 1362d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 4, "intqdinf"); 13634a71df50SFrank Blaschka atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); 136495f4d8b7SJulian Wiedmann card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT; 136595f4d8b7SJulian Wiedmann card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; 136695f4d8b7SJulian Wiedmann card->qdio.no_out_queues = QETH_MAX_QUEUES; 136795f4d8b7SJulian Wiedmann 13684a71df50SFrank Blaschka /* inbound */ 1369ed2e93efSJulian Wiedmann card->qdio.no_in_queues = 1; 13704a71df50SFrank Blaschka card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT; 1371dcf4ae2dSFrank Blaschka if (card->info.type == QETH_CARD_TYPE_IQD) 1372dcf4ae2dSFrank Blaschka card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_HSDEFAULT; 1373dcf4ae2dSFrank Blaschka else 13744a71df50SFrank Blaschka card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT; 13754a71df50SFrank Blaschka card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count; 13764a71df50SFrank Blaschka INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list); 13774a71df50SFrank Blaschka INIT_LIST_HEAD(&card->qdio.init_pool.entry_list); 13784a71df50SFrank Blaschka } 13794a71df50SFrank Blaschka 138095f4d8b7SJulian Wiedmann static void qeth_set_initial_options(struct qeth_card *card) 13814a71df50SFrank Blaschka { 13824a71df50SFrank Blaschka card->options.route4.type = NO_ROUTER; 13834a71df50SFrank Blaschka card->options.route6.type = NO_ROUTER; 13844a71df50SFrank Blaschka card->options.rx_sg_cb = QETH_RX_SG_CB; 1385d64ecc22SEinar Lueck card->options.isolation = ISOLATION_MODE_NONE; 13860da9581dSEinar Lueck card->options.cq = QETH_CQ_DISABLED; 13874fda3354SJulian Wiedmann card->options.layer = QETH_DISCIPLINE_UNDETERMINED; 13884a71df50SFrank Blaschka } 13894a71df50SFrank Blaschka 13904a71df50SFrank Blaschka static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread) 13914a71df50SFrank Blaschka { 13924a71df50SFrank Blaschka unsigned long flags; 13934a71df50SFrank Blaschka int rc = 0; 13944a71df50SFrank Blaschka 13954a71df50SFrank Blaschka spin_lock_irqsave(&card->thread_mask_lock, flags); 1396847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 4, " %02x%02x%02x", 13974a71df50SFrank Blaschka (u8) card->thread_start_mask, 13984a71df50SFrank Blaschka (u8) card->thread_allowed_mask, 13994a71df50SFrank Blaschka (u8) card->thread_running_mask); 14004a71df50SFrank Blaschka rc = (card->thread_start_mask & thread); 14014a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 14024a71df50SFrank Blaschka return rc; 14034a71df50SFrank Blaschka } 14044a71df50SFrank Blaschka 14054a71df50SFrank Blaschka static void qeth_start_kernel_thread(struct work_struct *work) 14064a71df50SFrank Blaschka { 14073f36b890SFrank Blaschka struct task_struct *ts; 14084a71df50SFrank Blaschka struct qeth_card *card = container_of(work, struct qeth_card, 14094a71df50SFrank Blaschka kernel_thread_starter); 1410847a50fdSCarsten Otte QETH_CARD_TEXT(card , 2, "strthrd"); 14114a71df50SFrank Blaschka 14124a71df50SFrank Blaschka if (card->read.state != CH_STATE_UP && 14134a71df50SFrank Blaschka card->write.state != CH_STATE_UP) 14144a71df50SFrank Blaschka return; 14153f36b890SFrank Blaschka if (qeth_do_start_thread(card, QETH_RECOVER_THREAD)) { 1416c041f2d4SSebastian Ott ts = kthread_run(card->discipline->recover, (void *)card, 14174a71df50SFrank Blaschka "qeth_recover"); 14183f36b890SFrank Blaschka if (IS_ERR(ts)) { 14193f36b890SFrank Blaschka qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); 14203f36b890SFrank Blaschka qeth_clear_thread_running_bit(card, 14213f36b890SFrank Blaschka QETH_RECOVER_THREAD); 14223f36b890SFrank Blaschka } 14233f36b890SFrank Blaschka } 14244a71df50SFrank Blaschka } 14254a71df50SFrank Blaschka 1426bca51650SThomas Richter static void qeth_buffer_reclaim_work(struct work_struct *); 142795f4d8b7SJulian Wiedmann static void qeth_setup_card(struct qeth_card *card) 14284a71df50SFrank Blaschka { 1429d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "setupcrd"); 1430d11ba0c4SPeter Tiedemann QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); 14314a71df50SFrank Blaschka 143295f4d8b7SJulian Wiedmann card->info.type = CARD_RDEV(card)->id.driver_info; 14334a71df50SFrank Blaschka card->state = CARD_STATE_DOWN; 14344a71df50SFrank Blaschka spin_lock_init(&card->mclock); 14354a71df50SFrank Blaschka spin_lock_init(&card->lock); 14364a71df50SFrank Blaschka spin_lock_init(&card->ip_lock); 14374a71df50SFrank Blaschka spin_lock_init(&card->thread_mask_lock); 1438c4949f07SFrank Blaschka mutex_init(&card->conf_mutex); 14399dc48cccSUrsula Braun mutex_init(&card->discipline_mutex); 14404a71df50SFrank Blaschka INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread); 14414a71df50SFrank Blaschka INIT_LIST_HEAD(&card->cmd_waiter_list); 14424a71df50SFrank Blaschka init_waitqueue_head(&card->wait_q); 144395f4d8b7SJulian Wiedmann qeth_set_initial_options(card); 14444a71df50SFrank Blaschka /* IP address takeover */ 14454a71df50SFrank Blaschka INIT_LIST_HEAD(&card->ipato.entries); 14464a71df50SFrank Blaschka qeth_init_qdio_info(card); 1447b3332930SFrank Blaschka INIT_DELAYED_WORK(&card->buffer_reclaim_work, qeth_buffer_reclaim_work); 14480f54761dSStefan Raspl INIT_WORK(&card->close_dev_work, qeth_close_dev_handler); 14494a71df50SFrank Blaschka } 14504a71df50SFrank Blaschka 14516bcac508SMartin Schwidefsky static void qeth_core_sl_print(struct seq_file *m, struct service_level *slr) 14526bcac508SMartin Schwidefsky { 14536bcac508SMartin Schwidefsky struct qeth_card *card = container_of(slr, struct qeth_card, 14546bcac508SMartin Schwidefsky qeth_service_level); 14550d788c7dSKlaus-Dieter Wacker if (card->info.mcl_level[0]) 14560d788c7dSKlaus-Dieter Wacker seq_printf(m, "qeth: %s firmware level %s\n", 14570d788c7dSKlaus-Dieter Wacker CARD_BUS_ID(card), card->info.mcl_level); 14586bcac508SMartin Schwidefsky } 14596bcac508SMartin Schwidefsky 1460121ca39aSJulian Wiedmann static struct qeth_card *qeth_alloc_card(struct ccwgroup_device *gdev) 14614a71df50SFrank Blaschka { 14624a71df50SFrank Blaschka struct qeth_card *card; 14634a71df50SFrank Blaschka 1464d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "alloccrd"); 1465f15cdaf2SJulian Wiedmann card = kzalloc(sizeof(*card), GFP_KERNEL); 14664a71df50SFrank Blaschka if (!card) 146776b11f8eSUrsula Braun goto out; 1468d11ba0c4SPeter Tiedemann QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); 1469121ca39aSJulian Wiedmann 1470121ca39aSJulian Wiedmann card->gdev = gdev; 1471a2eb0ad5SJulian Wiedmann dev_set_drvdata(&gdev->dev, card); 1472121ca39aSJulian Wiedmann CARD_RDEV(card) = gdev->cdev[0]; 1473121ca39aSJulian Wiedmann CARD_WDEV(card) = gdev->cdev[1]; 1474121ca39aSJulian Wiedmann CARD_DDEV(card) = gdev->cdev[2]; 1475c0a2e4d1SJulian Wiedmann 1476c0a2e4d1SJulian Wiedmann card->event_wq = alloc_ordered_workqueue("%s", 0, dev_name(&gdev->dev)); 1477c0a2e4d1SJulian Wiedmann if (!card->event_wq) 1478c0a2e4d1SJulian Wiedmann goto out_wq; 147924142fd8SJulian Wiedmann if (qeth_setup_channel(&card->read, true)) 148076b11f8eSUrsula Braun goto out_ip; 148124142fd8SJulian Wiedmann if (qeth_setup_channel(&card->write, true)) 148276b11f8eSUrsula Braun goto out_channel; 148324142fd8SJulian Wiedmann if (qeth_setup_channel(&card->data, false)) 148424142fd8SJulian Wiedmann goto out_data; 14856bcac508SMartin Schwidefsky card->qeth_service_level.seq_print = qeth_core_sl_print; 14866bcac508SMartin Schwidefsky register_service_level(&card->qeth_service_level); 14874a71df50SFrank Blaschka return card; 148876b11f8eSUrsula Braun 148924142fd8SJulian Wiedmann out_data: 149024142fd8SJulian Wiedmann qeth_clean_channel(&card->write); 149176b11f8eSUrsula Braun out_channel: 149276b11f8eSUrsula Braun qeth_clean_channel(&card->read); 149376b11f8eSUrsula Braun out_ip: 1494c0a2e4d1SJulian Wiedmann destroy_workqueue(card->event_wq); 1495c0a2e4d1SJulian Wiedmann out_wq: 1496a2eb0ad5SJulian Wiedmann dev_set_drvdata(&gdev->dev, NULL); 149776b11f8eSUrsula Braun kfree(card); 149876b11f8eSUrsula Braun out: 149976b11f8eSUrsula Braun return NULL; 15004a71df50SFrank Blaschka } 15014a71df50SFrank Blaschka 15028d908eb0SJulian Wiedmann static int qeth_clear_channel(struct qeth_card *card, 15038d908eb0SJulian Wiedmann struct qeth_channel *channel) 15044a71df50SFrank Blaschka { 15054a71df50SFrank Blaschka int rc; 15064a71df50SFrank Blaschka 1507847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "clearch"); 1508ed47155bSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(channel->ccwdev)); 15094a71df50SFrank Blaschka rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM); 1510ed47155bSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(channel->ccwdev)); 15114a71df50SFrank Blaschka 15124a71df50SFrank Blaschka if (rc) 15134a71df50SFrank Blaschka return rc; 15144a71df50SFrank Blaschka rc = wait_event_interruptible_timeout(card->wait_q, 15154a71df50SFrank Blaschka channel->state == CH_STATE_STOPPED, QETH_TIMEOUT); 15164a71df50SFrank Blaschka if (rc == -ERESTARTSYS) 15174a71df50SFrank Blaschka return rc; 15184a71df50SFrank Blaschka if (channel->state != CH_STATE_STOPPED) 15194a71df50SFrank Blaschka return -ETIME; 15204a71df50SFrank Blaschka channel->state = CH_STATE_DOWN; 15214a71df50SFrank Blaschka return 0; 15224a71df50SFrank Blaschka } 15234a71df50SFrank Blaschka 15248d908eb0SJulian Wiedmann static int qeth_halt_channel(struct qeth_card *card, 15258d908eb0SJulian Wiedmann struct qeth_channel *channel) 15264a71df50SFrank Blaschka { 15274a71df50SFrank Blaschka int rc; 15284a71df50SFrank Blaschka 1529847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "haltch"); 1530ed47155bSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(channel->ccwdev)); 15314a71df50SFrank Blaschka rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM); 1532ed47155bSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(channel->ccwdev)); 15334a71df50SFrank Blaschka 15344a71df50SFrank Blaschka if (rc) 15354a71df50SFrank Blaschka return rc; 15364a71df50SFrank Blaschka rc = wait_event_interruptible_timeout(card->wait_q, 15374a71df50SFrank Blaschka channel->state == CH_STATE_HALTED, QETH_TIMEOUT); 15384a71df50SFrank Blaschka if (rc == -ERESTARTSYS) 15394a71df50SFrank Blaschka return rc; 15404a71df50SFrank Blaschka if (channel->state != CH_STATE_HALTED) 15414a71df50SFrank Blaschka return -ETIME; 15424a71df50SFrank Blaschka return 0; 15434a71df50SFrank Blaschka } 15444a71df50SFrank Blaschka 15454a71df50SFrank Blaschka static int qeth_halt_channels(struct qeth_card *card) 15464a71df50SFrank Blaschka { 15474a71df50SFrank Blaschka int rc1 = 0, rc2 = 0, rc3 = 0; 15484a71df50SFrank Blaschka 1549847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "haltchs"); 15508d908eb0SJulian Wiedmann rc1 = qeth_halt_channel(card, &card->read); 15518d908eb0SJulian Wiedmann rc2 = qeth_halt_channel(card, &card->write); 15528d908eb0SJulian Wiedmann rc3 = qeth_halt_channel(card, &card->data); 15534a71df50SFrank Blaschka if (rc1) 15544a71df50SFrank Blaschka return rc1; 15554a71df50SFrank Blaschka if (rc2) 15564a71df50SFrank Blaschka return rc2; 15574a71df50SFrank Blaschka return rc3; 15584a71df50SFrank Blaschka } 15594a71df50SFrank Blaschka 15604a71df50SFrank Blaschka static int qeth_clear_channels(struct qeth_card *card) 15614a71df50SFrank Blaschka { 15624a71df50SFrank Blaschka int rc1 = 0, rc2 = 0, rc3 = 0; 15634a71df50SFrank Blaschka 1564847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "clearchs"); 15658d908eb0SJulian Wiedmann rc1 = qeth_clear_channel(card, &card->read); 15668d908eb0SJulian Wiedmann rc2 = qeth_clear_channel(card, &card->write); 15678d908eb0SJulian Wiedmann rc3 = qeth_clear_channel(card, &card->data); 15684a71df50SFrank Blaschka if (rc1) 15694a71df50SFrank Blaschka return rc1; 15704a71df50SFrank Blaschka if (rc2) 15714a71df50SFrank Blaschka return rc2; 15724a71df50SFrank Blaschka return rc3; 15734a71df50SFrank Blaschka } 15744a71df50SFrank Blaschka 15754a71df50SFrank Blaschka static int qeth_clear_halt_card(struct qeth_card *card, int halt) 15764a71df50SFrank Blaschka { 15774a71df50SFrank Blaschka int rc = 0; 15784a71df50SFrank Blaschka 1579847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "clhacrd"); 15804a71df50SFrank Blaschka 15814a71df50SFrank Blaschka if (halt) 15824a71df50SFrank Blaschka rc = qeth_halt_channels(card); 15834a71df50SFrank Blaschka if (rc) 15844a71df50SFrank Blaschka return rc; 15854a71df50SFrank Blaschka return qeth_clear_channels(card); 15864a71df50SFrank Blaschka } 15874a71df50SFrank Blaschka 15884a71df50SFrank Blaschka int qeth_qdio_clear_card(struct qeth_card *card, int use_halt) 15894a71df50SFrank Blaschka { 15904a71df50SFrank Blaschka int rc = 0; 15914a71df50SFrank Blaschka 1592847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "qdioclr"); 15934a71df50SFrank Blaschka switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED, 15944a71df50SFrank Blaschka QETH_QDIO_CLEANING)) { 15954a71df50SFrank Blaschka case QETH_QDIO_ESTABLISHED: 15964a71df50SFrank Blaschka if (card->info.type == QETH_CARD_TYPE_IQD) 1597cc961d40SJan Glauber rc = qdio_shutdown(CARD_DDEV(card), 15984a71df50SFrank Blaschka QDIO_FLAG_CLEANUP_USING_HALT); 15994a71df50SFrank Blaschka else 1600cc961d40SJan Glauber rc = qdio_shutdown(CARD_DDEV(card), 16014a71df50SFrank Blaschka QDIO_FLAG_CLEANUP_USING_CLEAR); 16024a71df50SFrank Blaschka if (rc) 1603847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 3, "1err%d", rc); 16044a71df50SFrank Blaschka atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); 16054a71df50SFrank Blaschka break; 16064a71df50SFrank Blaschka case QETH_QDIO_CLEANING: 16074a71df50SFrank Blaschka return rc; 16084a71df50SFrank Blaschka default: 16094a71df50SFrank Blaschka break; 16104a71df50SFrank Blaschka } 16114a71df50SFrank Blaschka rc = qeth_clear_halt_card(card, use_halt); 16124a71df50SFrank Blaschka if (rc) 1613847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 3, "2err%d", rc); 16144a71df50SFrank Blaschka card->state = CARD_STATE_DOWN; 16154a71df50SFrank Blaschka return rc; 16164a71df50SFrank Blaschka } 16174a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_qdio_clear_card); 16184a71df50SFrank Blaschka 16194a71df50SFrank Blaschka static int qeth_read_conf_data(struct qeth_card *card, void **buffer, 16204a71df50SFrank Blaschka int *length) 16214a71df50SFrank Blaschka { 16224a71df50SFrank Blaschka struct ciw *ciw; 16234a71df50SFrank Blaschka char *rcd_buf; 16244a71df50SFrank Blaschka int ret; 16254a71df50SFrank Blaschka struct qeth_channel *channel = &card->data; 16264a71df50SFrank Blaschka 16274a71df50SFrank Blaschka /* 16284a71df50SFrank Blaschka * scan for RCD command in extended SenseID data 16294a71df50SFrank Blaschka */ 16304a71df50SFrank Blaschka ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD); 16314a71df50SFrank Blaschka if (!ciw || ciw->cmd == 0) 16324a71df50SFrank Blaschka return -EOPNOTSUPP; 16334a71df50SFrank Blaschka rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA); 16344a71df50SFrank Blaschka if (!rcd_buf) 16354a71df50SFrank Blaschka return -ENOMEM; 16364a71df50SFrank Blaschka 1637f15cdaf2SJulian Wiedmann qeth_setup_ccw(channel->ccw, ciw->cmd, ciw->count, rcd_buf); 16384a71df50SFrank Blaschka channel->state = CH_STATE_RCD; 1639ed47155bSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(channel->ccwdev)); 1640f15cdaf2SJulian Wiedmann ret = ccw_device_start_timeout(channel->ccwdev, channel->ccw, 16414a71df50SFrank Blaschka QETH_RCD_PARM, LPM_ANYPATH, 0, 16424a71df50SFrank Blaschka QETH_RCD_TIMEOUT); 1643ed47155bSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(channel->ccwdev)); 16444a71df50SFrank Blaschka if (!ret) 16454a71df50SFrank Blaschka wait_event(card->wait_q, 16464a71df50SFrank Blaschka (channel->state == CH_STATE_RCD_DONE || 16474a71df50SFrank Blaschka channel->state == CH_STATE_DOWN)); 16484a71df50SFrank Blaschka if (channel->state == CH_STATE_DOWN) 16494a71df50SFrank Blaschka ret = -EIO; 16504a71df50SFrank Blaschka else 16514a71df50SFrank Blaschka channel->state = CH_STATE_DOWN; 16524a71df50SFrank Blaschka if (ret) { 16534a71df50SFrank Blaschka kfree(rcd_buf); 16544a71df50SFrank Blaschka *buffer = NULL; 16554a71df50SFrank Blaschka *length = 0; 16564a71df50SFrank Blaschka } else { 16574a71df50SFrank Blaschka *length = ciw->count; 16584a71df50SFrank Blaschka *buffer = rcd_buf; 16594a71df50SFrank Blaschka } 16604a71df50SFrank Blaschka return ret; 16614a71df50SFrank Blaschka } 16624a71df50SFrank Blaschka 1663a60389abSEinar Lueck static void qeth_configure_unitaddr(struct qeth_card *card, char *prcd) 16644a71df50SFrank Blaschka { 1665a60389abSEinar Lueck QETH_DBF_TEXT(SETUP, 2, "cfgunit"); 16664a71df50SFrank Blaschka card->info.chpid = prcd[30]; 16674a71df50SFrank Blaschka card->info.unit_addr2 = prcd[31]; 16684a71df50SFrank Blaschka card->info.cula = prcd[63]; 16694a71df50SFrank Blaschka card->info.guestlan = ((prcd[0x10] == _ascebc['V']) && 16704a71df50SFrank Blaschka (prcd[0x11] == _ascebc['M'])); 1671a60389abSEinar Lueck } 1672a60389abSEinar Lueck 1673615dff22SJulian Wiedmann static enum qeth_discipline_id qeth_vm_detect_layer(struct qeth_card *card) 1674615dff22SJulian Wiedmann { 1675615dff22SJulian Wiedmann enum qeth_discipline_id disc = QETH_DISCIPLINE_UNDETERMINED; 1676615dff22SJulian Wiedmann struct diag26c_vnic_resp *response = NULL; 1677615dff22SJulian Wiedmann struct diag26c_vnic_req *request = NULL; 1678615dff22SJulian Wiedmann struct ccw_dev_id id; 1679615dff22SJulian Wiedmann char userid[80]; 1680615dff22SJulian Wiedmann int rc = 0; 1681615dff22SJulian Wiedmann 1682615dff22SJulian Wiedmann QETH_DBF_TEXT(SETUP, 2, "vmlayer"); 1683615dff22SJulian Wiedmann 1684615dff22SJulian Wiedmann cpcmd("QUERY USERID", userid, sizeof(userid), &rc); 1685615dff22SJulian Wiedmann if (rc) 1686615dff22SJulian Wiedmann goto out; 1687615dff22SJulian Wiedmann 1688615dff22SJulian Wiedmann request = kzalloc(sizeof(*request), GFP_KERNEL | GFP_DMA); 1689615dff22SJulian Wiedmann response = kzalloc(sizeof(*response), GFP_KERNEL | GFP_DMA); 1690615dff22SJulian Wiedmann if (!request || !response) { 1691615dff22SJulian Wiedmann rc = -ENOMEM; 1692615dff22SJulian Wiedmann goto out; 1693615dff22SJulian Wiedmann } 1694615dff22SJulian Wiedmann 1695615dff22SJulian Wiedmann ccw_device_get_id(CARD_RDEV(card), &id); 1696615dff22SJulian Wiedmann request->resp_buf_len = sizeof(*response); 1697615dff22SJulian Wiedmann request->resp_version = DIAG26C_VERSION6_VM65918; 1698615dff22SJulian Wiedmann request->req_format = DIAG26C_VNIC_INFO; 1699615dff22SJulian Wiedmann ASCEBC(userid, 8); 1700615dff22SJulian Wiedmann memcpy(&request->sys_name, userid, 8); 1701615dff22SJulian Wiedmann request->devno = id.devno; 1702615dff22SJulian Wiedmann 1703615dff22SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, request, sizeof(*request)); 1704615dff22SJulian Wiedmann rc = diag26c(request, response, DIAG26C_PORT_VNIC); 1705615dff22SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, request, sizeof(*request)); 1706615dff22SJulian Wiedmann if (rc) 1707615dff22SJulian Wiedmann goto out; 1708615dff22SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, response, sizeof(*response)); 1709615dff22SJulian Wiedmann 1710615dff22SJulian Wiedmann if (request->resp_buf_len < sizeof(*response) || 1711615dff22SJulian Wiedmann response->version != request->resp_version) { 1712615dff22SJulian Wiedmann rc = -EIO; 1713615dff22SJulian Wiedmann goto out; 1714615dff22SJulian Wiedmann } 1715615dff22SJulian Wiedmann 1716615dff22SJulian Wiedmann if (response->protocol == VNIC_INFO_PROT_L2) 1717615dff22SJulian Wiedmann disc = QETH_DISCIPLINE_LAYER2; 1718615dff22SJulian Wiedmann else if (response->protocol == VNIC_INFO_PROT_L3) 1719615dff22SJulian Wiedmann disc = QETH_DISCIPLINE_LAYER3; 1720615dff22SJulian Wiedmann 1721615dff22SJulian Wiedmann out: 1722615dff22SJulian Wiedmann kfree(response); 1723615dff22SJulian Wiedmann kfree(request); 1724615dff22SJulian Wiedmann if (rc) 1725615dff22SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "err%x", rc); 1726615dff22SJulian Wiedmann return disc; 1727615dff22SJulian Wiedmann } 1728615dff22SJulian Wiedmann 1729c70eb09dSJulian Wiedmann /* Determine whether the device requires a specific layer discipline */ 1730c70eb09dSJulian Wiedmann static enum qeth_discipline_id qeth_enforce_discipline(struct qeth_card *card) 1731c70eb09dSJulian Wiedmann { 1732615dff22SJulian Wiedmann enum qeth_discipline_id disc = QETH_DISCIPLINE_UNDETERMINED; 1733615dff22SJulian Wiedmann 1734c70eb09dSJulian Wiedmann if (card->info.type == QETH_CARD_TYPE_OSM || 1735615dff22SJulian Wiedmann card->info.type == QETH_CARD_TYPE_OSN) 1736615dff22SJulian Wiedmann disc = QETH_DISCIPLINE_LAYER2; 1737615dff22SJulian Wiedmann else if (card->info.guestlan) 1738615dff22SJulian Wiedmann disc = (card->info.type == QETH_CARD_TYPE_IQD) ? 1739615dff22SJulian Wiedmann QETH_DISCIPLINE_LAYER3 : 1740615dff22SJulian Wiedmann qeth_vm_detect_layer(card); 1741615dff22SJulian Wiedmann 1742615dff22SJulian Wiedmann switch (disc) { 1743615dff22SJulian Wiedmann case QETH_DISCIPLINE_LAYER2: 1744c70eb09dSJulian Wiedmann QETH_DBF_TEXT(SETUP, 3, "force l2"); 1745615dff22SJulian Wiedmann break; 1746615dff22SJulian Wiedmann case QETH_DISCIPLINE_LAYER3: 1747c70eb09dSJulian Wiedmann QETH_DBF_TEXT(SETUP, 3, "force l3"); 1748615dff22SJulian Wiedmann break; 1749615dff22SJulian Wiedmann default: 1750615dff22SJulian Wiedmann QETH_DBF_TEXT(SETUP, 3, "force no"); 1751c70eb09dSJulian Wiedmann } 1752c70eb09dSJulian Wiedmann 1753615dff22SJulian Wiedmann return disc; 1754c70eb09dSJulian Wiedmann } 1755c70eb09dSJulian Wiedmann 1756a60389abSEinar Lueck static void qeth_configure_blkt_default(struct qeth_card *card, char *prcd) 1757a60389abSEinar Lueck { 1758a60389abSEinar Lueck QETH_DBF_TEXT(SETUP, 2, "cfgblkt"); 1759a60389abSEinar Lueck 1760e6e056baSStefan Raspl if (prcd[74] == 0xF0 && prcd[75] == 0xF0 && 1761a0c98523SUrsula Braun prcd[76] >= 0xF1 && prcd[76] <= 0xF4) { 1762a60389abSEinar Lueck card->info.blkt.time_total = 0; 1763a60389abSEinar Lueck card->info.blkt.inter_packet = 0; 1764a60389abSEinar Lueck card->info.blkt.inter_packet_jumbo = 0; 1765a0c98523SUrsula Braun } else { 1766a0c98523SUrsula Braun card->info.blkt.time_total = 250; 1767a0c98523SUrsula Braun card->info.blkt.inter_packet = 5; 1768a0c98523SUrsula Braun card->info.blkt.inter_packet_jumbo = 15; 1769a60389abSEinar Lueck } 17704a71df50SFrank Blaschka } 17714a71df50SFrank Blaschka 17724a71df50SFrank Blaschka static void qeth_init_tokens(struct qeth_card *card) 17734a71df50SFrank Blaschka { 17744a71df50SFrank Blaschka card->token.issuer_rm_w = 0x00010103UL; 17754a71df50SFrank Blaschka card->token.cm_filter_w = 0x00010108UL; 17764a71df50SFrank Blaschka card->token.cm_connection_w = 0x0001010aUL; 17774a71df50SFrank Blaschka card->token.ulp_filter_w = 0x0001010bUL; 17784a71df50SFrank Blaschka card->token.ulp_connection_w = 0x0001010dUL; 17794a71df50SFrank Blaschka } 17804a71df50SFrank Blaschka 17814a71df50SFrank Blaschka static void qeth_init_func_level(struct qeth_card *card) 17824a71df50SFrank Blaschka { 17835113fec0SUrsula Braun switch (card->info.type) { 17845113fec0SUrsula Braun case QETH_CARD_TYPE_IQD: 17856298263aSKlaus-Dieter Wacker card->info.func_level = QETH_IDX_FUNC_LEVEL_IQD; 17865113fec0SUrsula Braun break; 17875113fec0SUrsula Braun case QETH_CARD_TYPE_OSD: 17880132951eSUrsula Braun case QETH_CARD_TYPE_OSN: 17895113fec0SUrsula Braun card->info.func_level = QETH_IDX_FUNC_LEVEL_OSD; 17905113fec0SUrsula Braun break; 17915113fec0SUrsula Braun default: 17925113fec0SUrsula Braun break; 17934a71df50SFrank Blaschka } 17944a71df50SFrank Blaschka } 17954a71df50SFrank Blaschka 17968d908eb0SJulian Wiedmann static int qeth_idx_activate_get_answer(struct qeth_card *card, 17978d908eb0SJulian Wiedmann struct qeth_channel *channel, 17988f6637b8SJulian Wiedmann void (*reply_cb)(struct qeth_card *, 17998f6637b8SJulian Wiedmann struct qeth_channel *, 18004a71df50SFrank Blaschka struct qeth_cmd_buffer *)) 18014a71df50SFrank Blaschka { 18024a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 18034a71df50SFrank Blaschka int rc; 18044a71df50SFrank Blaschka 1805d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "idxanswr"); 18064a71df50SFrank Blaschka iob = qeth_get_buffer(channel); 18071aec42bcSThomas Richter if (!iob) 18081aec42bcSThomas Richter return -ENOMEM; 18098f6637b8SJulian Wiedmann iob->callback = reply_cb; 1810f15cdaf2SJulian Wiedmann qeth_setup_ccw(channel->ccw, CCW_CMD_READ, QETH_BUFSIZE, iob->data); 18114a71df50SFrank Blaschka 18124a71df50SFrank Blaschka wait_event(card->wait_q, 18134a71df50SFrank Blaschka atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); 1814d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 6, "noirqpnd"); 1815ed47155bSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(channel->ccwdev)); 1816f15cdaf2SJulian Wiedmann rc = ccw_device_start_timeout(channel->ccwdev, channel->ccw, 1817db71bbbdSJulian Wiedmann (addr_t) iob, 0, 0, QETH_TIMEOUT); 1818ed47155bSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(channel->ccwdev)); 18194a71df50SFrank Blaschka 18204a71df50SFrank Blaschka if (rc) { 182114cc21b6SFrank Blaschka QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc); 1822d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); 18234a71df50SFrank Blaschka atomic_set(&channel->irq_pending, 0); 18245065b2ddSJulian Wiedmann qeth_release_buffer(channel, iob); 18254a71df50SFrank Blaschka wake_up(&card->wait_q); 18264a71df50SFrank Blaschka return rc; 18274a71df50SFrank Blaschka } 18284a71df50SFrank Blaschka rc = wait_event_interruptible_timeout(card->wait_q, 18294a71df50SFrank Blaschka channel->state == CH_STATE_UP, QETH_TIMEOUT); 18304a71df50SFrank Blaschka if (rc == -ERESTARTSYS) 18314a71df50SFrank Blaschka return rc; 18324a71df50SFrank Blaschka if (channel->state != CH_STATE_UP) { 18334a71df50SFrank Blaschka rc = -ETIME; 1834d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); 18354a71df50SFrank Blaschka } else 18364a71df50SFrank Blaschka rc = 0; 18374a71df50SFrank Blaschka return rc; 18384a71df50SFrank Blaschka } 18394a71df50SFrank Blaschka 18408d908eb0SJulian Wiedmann static int qeth_idx_activate_channel(struct qeth_card *card, 18418d908eb0SJulian Wiedmann struct qeth_channel *channel, 18428f6637b8SJulian Wiedmann void (*reply_cb)(struct qeth_card *, 18438f6637b8SJulian Wiedmann struct qeth_channel *, 18444a71df50SFrank Blaschka struct qeth_cmd_buffer *)) 18454a71df50SFrank Blaschka { 18464a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 18474a71df50SFrank Blaschka __u16 temp; 18484a71df50SFrank Blaschka __u8 tmp; 18494a71df50SFrank Blaschka int rc; 1850f06f6f32SCornelia Huck struct ccw_dev_id temp_devid; 18514a71df50SFrank Blaschka 1852d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "idxactch"); 18534a71df50SFrank Blaschka 18544a71df50SFrank Blaschka iob = qeth_get_buffer(channel); 18551aec42bcSThomas Richter if (!iob) 18561aec42bcSThomas Richter return -ENOMEM; 18578f6637b8SJulian Wiedmann iob->callback = reply_cb; 1858f15cdaf2SJulian Wiedmann qeth_setup_ccw(channel->ccw, CCW_CMD_WRITE, IDX_ACTIVATE_SIZE, 185945ca2fd6SJulian Wiedmann iob->data); 18604a71df50SFrank Blaschka if (channel == &card->write) { 18614a71df50SFrank Blaschka memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE); 18624a71df50SFrank Blaschka memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), 18634a71df50SFrank Blaschka &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); 18644a71df50SFrank Blaschka card->seqno.trans_hdr++; 18654a71df50SFrank Blaschka } else { 18664a71df50SFrank Blaschka memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE); 18674a71df50SFrank Blaschka memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), 18684a71df50SFrank Blaschka &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); 18694a71df50SFrank Blaschka } 187092d27209SJulian Wiedmann tmp = ((u8)card->dev->dev_port) | 0x80; 18714a71df50SFrank Blaschka memcpy(QETH_IDX_ACT_PNO(iob->data), &tmp, 1); 18724a71df50SFrank Blaschka memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data), 18734a71df50SFrank Blaschka &card->token.issuer_rm_w, QETH_MPC_TOKEN_LENGTH); 18744a71df50SFrank Blaschka memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data), 18754a71df50SFrank Blaschka &card->info.func_level, sizeof(__u16)); 1876f06f6f32SCornelia Huck ccw_device_get_id(CARD_DDEV(card), &temp_devid); 1877f06f6f32SCornelia Huck memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp_devid.devno, 2); 18784a71df50SFrank Blaschka temp = (card->info.cula << 8) + card->info.unit_addr2; 18794a71df50SFrank Blaschka memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2); 18804a71df50SFrank Blaschka 18814a71df50SFrank Blaschka wait_event(card->wait_q, 18824a71df50SFrank Blaschka atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); 1883d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 6, "noirqpnd"); 1884ed47155bSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(channel->ccwdev)); 1885f15cdaf2SJulian Wiedmann rc = ccw_device_start_timeout(channel->ccwdev, channel->ccw, 1886db71bbbdSJulian Wiedmann (addr_t) iob, 0, 0, QETH_TIMEOUT); 1887ed47155bSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(channel->ccwdev)); 18884a71df50SFrank Blaschka 18894a71df50SFrank Blaschka if (rc) { 189014cc21b6SFrank Blaschka QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n", 189114cc21b6SFrank Blaschka rc); 1892d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 18934a71df50SFrank Blaschka atomic_set(&channel->irq_pending, 0); 18945065b2ddSJulian Wiedmann qeth_release_buffer(channel, iob); 18954a71df50SFrank Blaschka wake_up(&card->wait_q); 18964a71df50SFrank Blaschka return rc; 18974a71df50SFrank Blaschka } 18984a71df50SFrank Blaschka rc = wait_event_interruptible_timeout(card->wait_q, 18994a71df50SFrank Blaschka channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT); 19004a71df50SFrank Blaschka if (rc == -ERESTARTSYS) 19014a71df50SFrank Blaschka return rc; 19024a71df50SFrank Blaschka if (channel->state != CH_STATE_ACTIVATING) { 190374eacdb9SFrank Blaschka dev_warn(&channel->ccwdev->dev, "The qeth device driver" 190474eacdb9SFrank Blaschka " failed to recover an error on the device\n"); 1905e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "IDX activate timed out on channel %x\n", 1906e19e5be8SJulian Wiedmann CCW_DEVID(channel->ccwdev)); 1907d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME); 19084a71df50SFrank Blaschka return -ETIME; 19094a71df50SFrank Blaschka } 19108d908eb0SJulian Wiedmann return qeth_idx_activate_get_answer(card, channel, reply_cb); 19114a71df50SFrank Blaschka } 19124a71df50SFrank Blaschka 19134a71df50SFrank Blaschka static int qeth_peer_func_level(int level) 19144a71df50SFrank Blaschka { 19154a71df50SFrank Blaschka if ((level & 0xff) == 8) 19164a71df50SFrank Blaschka return (level & 0xff) + 0x400; 19174a71df50SFrank Blaschka if (((level >> 8) & 3) == 1) 19184a71df50SFrank Blaschka return (level & 0xff) + 0x200; 19194a71df50SFrank Blaschka return level; 19204a71df50SFrank Blaschka } 19214a71df50SFrank Blaschka 19228f6637b8SJulian Wiedmann static void qeth_idx_write_cb(struct qeth_card *card, 19238f6637b8SJulian Wiedmann struct qeth_channel *channel, 19244a71df50SFrank Blaschka struct qeth_cmd_buffer *iob) 19254a71df50SFrank Blaschka { 19264a71df50SFrank Blaschka __u16 temp; 19274a71df50SFrank Blaschka 1928d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP , 2, "idxwrcb"); 19294a71df50SFrank Blaschka 19304a71df50SFrank Blaschka if (channel->state == CH_STATE_DOWN) { 19314a71df50SFrank Blaschka channel->state = CH_STATE_ACTIVATING; 19324a71df50SFrank Blaschka goto out; 19334a71df50SFrank Blaschka } 19344a71df50SFrank Blaschka 19354a71df50SFrank Blaschka if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { 19365113fec0SUrsula Braun if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == QETH_IDX_ACT_ERR_EXCL) 1937750b1625SJulian Wiedmann dev_err(&channel->ccwdev->dev, 193874eacdb9SFrank Blaschka "The adapter is used exclusively by another " 193974eacdb9SFrank Blaschka "host\n"); 19404a71df50SFrank Blaschka else 1941e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "IDX_ACTIVATE on channel %x: negative reply\n", 1942e19e5be8SJulian Wiedmann CCW_DEVID(channel->ccwdev)); 19434a71df50SFrank Blaschka goto out; 19444a71df50SFrank Blaschka } 19454a71df50SFrank Blaschka memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); 19464a71df50SFrank Blaschka if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) { 1947e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "IDX_ACTIVATE on channel %x: function level mismatch (sent: %#x, received: %#x)\n", 1948e19e5be8SJulian Wiedmann CCW_DEVID(channel->ccwdev), 194974eacdb9SFrank Blaschka card->info.func_level, temp); 19504a71df50SFrank Blaschka goto out; 19514a71df50SFrank Blaschka } 19524a71df50SFrank Blaschka channel->state = CH_STATE_UP; 19534a71df50SFrank Blaschka out: 19544a71df50SFrank Blaschka qeth_release_buffer(channel, iob); 19554a71df50SFrank Blaschka } 19564a71df50SFrank Blaschka 19578f6637b8SJulian Wiedmann static void qeth_idx_read_cb(struct qeth_card *card, 19588f6637b8SJulian Wiedmann struct qeth_channel *channel, 19594a71df50SFrank Blaschka struct qeth_cmd_buffer *iob) 19604a71df50SFrank Blaschka { 19614a71df50SFrank Blaschka __u16 temp; 19624a71df50SFrank Blaschka 1963d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP , 2, "idxrdcb"); 19644a71df50SFrank Blaschka if (channel->state == CH_STATE_DOWN) { 19654a71df50SFrank Blaschka channel->state = CH_STATE_ACTIVATING; 19664a71df50SFrank Blaschka goto out; 19674a71df50SFrank Blaschka } 19684a71df50SFrank Blaschka 19695113fec0SUrsula Braun if (qeth_check_idx_response(card, iob->data)) 19704a71df50SFrank Blaschka goto out; 19714a71df50SFrank Blaschka 19724a71df50SFrank Blaschka if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { 19735113fec0SUrsula Braun switch (QETH_IDX_ACT_CAUSE_CODE(iob->data)) { 19745113fec0SUrsula Braun case QETH_IDX_ACT_ERR_EXCL: 1975750b1625SJulian Wiedmann dev_err(&channel->ccwdev->dev, 197674eacdb9SFrank Blaschka "The adapter is used exclusively by another " 197774eacdb9SFrank Blaschka "host\n"); 19785113fec0SUrsula Braun break; 19795113fec0SUrsula Braun case QETH_IDX_ACT_ERR_AUTH: 198001fc3e86SUrsula Braun case QETH_IDX_ACT_ERR_AUTH_USER: 1981750b1625SJulian Wiedmann dev_err(&channel->ccwdev->dev, 19825113fec0SUrsula Braun "Setting the device online failed because of " 198301fc3e86SUrsula Braun "insufficient authorization\n"); 19845113fec0SUrsula Braun break; 19855113fec0SUrsula Braun default: 1986e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "IDX_ACTIVATE on channel %x: negative reply\n", 1987e19e5be8SJulian Wiedmann CCW_DEVID(channel->ccwdev)); 19885113fec0SUrsula Braun } 198901fc3e86SUrsula Braun QETH_CARD_TEXT_(card, 2, "idxread%c", 199001fc3e86SUrsula Braun QETH_IDX_ACT_CAUSE_CODE(iob->data)); 19914a71df50SFrank Blaschka goto out; 19924a71df50SFrank Blaschka } 19934a71df50SFrank Blaschka 19944a71df50SFrank Blaschka memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); 19954a71df50SFrank Blaschka if (temp != qeth_peer_func_level(card->info.func_level)) { 1996e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "IDX_ACTIVATE on channel %x: function level mismatch (sent: %#x, received: %#x)\n", 1997e19e5be8SJulian Wiedmann CCW_DEVID(channel->ccwdev), 199874eacdb9SFrank Blaschka card->info.func_level, temp); 19994a71df50SFrank Blaschka goto out; 20004a71df50SFrank Blaschka } 20014a71df50SFrank Blaschka memcpy(&card->token.issuer_rm_r, 20024a71df50SFrank Blaschka QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data), 20034a71df50SFrank Blaschka QETH_MPC_TOKEN_LENGTH); 20044a71df50SFrank Blaschka memcpy(&card->info.mcl_level[0], 20054a71df50SFrank Blaschka QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH); 20064a71df50SFrank Blaschka channel->state = CH_STATE_UP; 20074a71df50SFrank Blaschka out: 20084a71df50SFrank Blaschka qeth_release_buffer(channel, iob); 20094a71df50SFrank Blaschka } 20104a71df50SFrank Blaschka 20114a71df50SFrank Blaschka void qeth_prepare_control_data(struct qeth_card *card, int len, 20124a71df50SFrank Blaschka struct qeth_cmd_buffer *iob) 20134a71df50SFrank Blaschka { 2014f15cdaf2SJulian Wiedmann qeth_setup_ccw(iob->channel->ccw, CCW_CMD_WRITE, len, iob->data); 20158f6637b8SJulian Wiedmann iob->callback = qeth_release_buffer_cb; 20164a71df50SFrank Blaschka 20174a71df50SFrank Blaschka memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), 20184a71df50SFrank Blaschka &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); 20194a71df50SFrank Blaschka card->seqno.trans_hdr++; 20204a71df50SFrank Blaschka memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data), 20214a71df50SFrank Blaschka &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH); 20224a71df50SFrank Blaschka card->seqno.pdu_hdr++; 20234a71df50SFrank Blaschka memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data), 20244a71df50SFrank Blaschka &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH); 202551581fd0SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, iob->data, min(len, QETH_DBF_CTRL_LEN)); 20264a71df50SFrank Blaschka } 20274a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_prepare_control_data); 20284a71df50SFrank Blaschka 2029efbbc1d5SEugene Crosser /** 2030efbbc1d5SEugene Crosser * qeth_send_control_data() - send control command to the card 2031efbbc1d5SEugene Crosser * @card: qeth_card structure pointer 2032efbbc1d5SEugene Crosser * @len: size of the command buffer 2033efbbc1d5SEugene Crosser * @iob: qeth_cmd_buffer pointer 2034efbbc1d5SEugene Crosser * @reply_cb: callback function pointer 2035efbbc1d5SEugene Crosser * @cb_card: pointer to the qeth_card structure 2036efbbc1d5SEugene Crosser * @cb_reply: pointer to the qeth_reply structure 2037efbbc1d5SEugene Crosser * @cb_cmd: pointer to the original iob for non-IPA 2038efbbc1d5SEugene Crosser * commands, or to the qeth_ipa_cmd structure 2039efbbc1d5SEugene Crosser * for the IPA commands. 2040efbbc1d5SEugene Crosser * @reply_param: private pointer passed to the callback 2041efbbc1d5SEugene Crosser * 2042efbbc1d5SEugene Crosser * Returns the value of the `return_code' field of the response 2043efbbc1d5SEugene Crosser * block returned from the hardware, or other error indication. 2044efbbc1d5SEugene Crosser * Value of zero indicates successful execution of the command. 2045efbbc1d5SEugene Crosser * 2046efbbc1d5SEugene Crosser * Callback function gets called one or more times, with cb_cmd 2047efbbc1d5SEugene Crosser * pointing to the response returned by the hardware. Callback 2048efbbc1d5SEugene Crosser * function must return non-zero if more reply blocks are expected, 2049efbbc1d5SEugene Crosser * and zero if the last or only reply block is received. Callback 2050efbbc1d5SEugene Crosser * function can get the value of the reply_param pointer from the 2051efbbc1d5SEugene Crosser * field 'param' of the structure qeth_reply. 2052efbbc1d5SEugene Crosser */ 2053efbbc1d5SEugene Crosser 205484dbea46SJulian Wiedmann static int qeth_send_control_data(struct qeth_card *card, int len, 20554a71df50SFrank Blaschka struct qeth_cmd_buffer *iob, 2056efbbc1d5SEugene Crosser int (*reply_cb)(struct qeth_card *cb_card, 2057efbbc1d5SEugene Crosser struct qeth_reply *cb_reply, 2058efbbc1d5SEugene Crosser unsigned long cb_cmd), 20594a71df50SFrank Blaschka void *reply_param) 20604a71df50SFrank Blaschka { 2061750b1625SJulian Wiedmann struct qeth_channel *channel = iob->channel; 20624a71df50SFrank Blaschka int rc; 20634a71df50SFrank Blaschka struct qeth_reply *reply = NULL; 20647834cd5aSHeiko Carstens unsigned long timeout, event_timeout; 20651c5b2216SJulian Wiedmann struct qeth_ipa_cmd *cmd = NULL; 20664a71df50SFrank Blaschka 2067847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "sendctl"); 20684a71df50SFrank Blaschka 2069908abbb5SUrsula Braun if (card->read_or_write_problem) { 2070750b1625SJulian Wiedmann qeth_release_buffer(channel, iob); 2071908abbb5SUrsula Braun return -EIO; 2072908abbb5SUrsula Braun } 20734a71df50SFrank Blaschka reply = qeth_alloc_reply(card); 20744a71df50SFrank Blaschka if (!reply) { 20755065b2ddSJulian Wiedmann qeth_release_buffer(channel, iob); 20764a71df50SFrank Blaschka return -ENOMEM; 20774a71df50SFrank Blaschka } 20784a71df50SFrank Blaschka reply->callback = reply_cb; 20794a71df50SFrank Blaschka reply->param = reply_param; 2080d22ffb5aSJulian Wiedmann 208154daaca7SJulian Wiedmann /* pairs with qeth_release_buffer(): */ 208254daaca7SJulian Wiedmann qeth_get_reply(reply); 208354daaca7SJulian Wiedmann iob->reply = reply; 208454daaca7SJulian Wiedmann 2085750b1625SJulian Wiedmann while (atomic_cmpxchg(&channel->irq_pending, 0, 1)) ; 20864a71df50SFrank Blaschka 20871c5b2216SJulian Wiedmann if (IS_IPA(iob->data)) { 20881c5b2216SJulian Wiedmann cmd = __ipa_cmd(iob); 2089d22ffb5aSJulian Wiedmann cmd->hdr.seqno = card->seqno.ipa++; 2090d22ffb5aSJulian Wiedmann reply->seqno = cmd->hdr.seqno; 20917834cd5aSHeiko Carstens event_timeout = QETH_IPA_TIMEOUT; 20921c5b2216SJulian Wiedmann } else { 2093d22ffb5aSJulian Wiedmann reply->seqno = QETH_IDX_COMMAND_SEQNO; 20947834cd5aSHeiko Carstens event_timeout = QETH_TIMEOUT; 20951c5b2216SJulian Wiedmann } 2096d22ffb5aSJulian Wiedmann qeth_prepare_control_data(card, len, iob); 2097d22ffb5aSJulian Wiedmann 20980951c6baSJulian Wiedmann qeth_enqueue_reply(card, reply); 20991c5b2216SJulian Wiedmann 21007834cd5aSHeiko Carstens timeout = jiffies + event_timeout; 21014a71df50SFrank Blaschka 2102847a50fdSCarsten Otte QETH_CARD_TEXT(card, 6, "noirqpnd"); 2103ed47155bSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(channel->ccwdev)); 2104f15cdaf2SJulian Wiedmann rc = ccw_device_start_timeout(channel->ccwdev, channel->ccw, 2105db71bbbdSJulian Wiedmann (addr_t) iob, 0, 0, event_timeout); 2106ed47155bSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(channel->ccwdev)); 21074a71df50SFrank Blaschka if (rc) { 2108e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "qeth_send_control_data on device %x: ccw_device_start rc = %i\n", 2109e19e5be8SJulian Wiedmann CARD_DEVID(card), rc); 2110847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 2, " err%d", rc); 21110951c6baSJulian Wiedmann qeth_dequeue_reply(card, reply); 21124a71df50SFrank Blaschka qeth_put_reply(reply); 2113750b1625SJulian Wiedmann qeth_release_buffer(channel, iob); 2114750b1625SJulian Wiedmann atomic_set(&channel->irq_pending, 0); 21154a71df50SFrank Blaschka wake_up(&card->wait_q); 21164a71df50SFrank Blaschka return rc; 21174a71df50SFrank Blaschka } 21185b54e16fSFrank Blaschka 21195b54e16fSFrank Blaschka /* we have only one long running ipassist, since we can ensure 21205b54e16fSFrank Blaschka process context of this command we can sleep */ 21211c5b2216SJulian Wiedmann if (cmd && cmd->hdr.command == IPA_CMD_SETIP && 21221c5b2216SJulian Wiedmann cmd->hdr.prot_version == QETH_PROT_IPV4) { 21235b54e16fSFrank Blaschka if (!wait_event_timeout(reply->wait_q, 21247834cd5aSHeiko Carstens atomic_read(&reply->received), event_timeout)) 21255b54e16fSFrank Blaschka goto time_err; 21265b54e16fSFrank Blaschka } else { 21274a71df50SFrank Blaschka while (!atomic_read(&reply->received)) { 21285b54e16fSFrank Blaschka if (time_after(jiffies, timeout)) 21295b54e16fSFrank Blaschka goto time_err; 21305b54e16fSFrank Blaschka cpu_relax(); 21316531084cSPeter Senna Tschudin } 21325b54e16fSFrank Blaschka } 21335b54e16fSFrank Blaschka 21340951c6baSJulian Wiedmann qeth_dequeue_reply(card, reply); 21355b54e16fSFrank Blaschka rc = reply->rc; 21365b54e16fSFrank Blaschka qeth_put_reply(reply); 21375b54e16fSFrank Blaschka return rc; 21385b54e16fSFrank Blaschka 21395b54e16fSFrank Blaschka time_err: 21400951c6baSJulian Wiedmann qeth_dequeue_reply(card, reply); 21414a71df50SFrank Blaschka qeth_put_reply(reply); 21420951c6baSJulian Wiedmann return -ETIME; 21434a71df50SFrank Blaschka } 21444a71df50SFrank Blaschka 21454a71df50SFrank Blaschka static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply, 21464a71df50SFrank Blaschka unsigned long data) 21474a71df50SFrank Blaschka { 21484a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 21494a71df50SFrank Blaschka 2150d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "cmenblcb"); 21514a71df50SFrank Blaschka 21524a71df50SFrank Blaschka iob = (struct qeth_cmd_buffer *) data; 21534a71df50SFrank Blaschka memcpy(&card->token.cm_filter_r, 21544a71df50SFrank Blaschka QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data), 21554a71df50SFrank Blaschka QETH_MPC_TOKEN_LENGTH); 21564a71df50SFrank Blaschka return 0; 21574a71df50SFrank Blaschka } 21584a71df50SFrank Blaschka 21594a71df50SFrank Blaschka static int qeth_cm_enable(struct qeth_card *card) 21604a71df50SFrank Blaschka { 21614a71df50SFrank Blaschka int rc; 21624a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 21634a71df50SFrank Blaschka 2164d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "cmenable"); 21654a71df50SFrank Blaschka 21664a71df50SFrank Blaschka iob = qeth_wait_for_buffer(&card->write); 21674a71df50SFrank Blaschka memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE); 21684a71df50SFrank Blaschka memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data), 21694a71df50SFrank Blaschka &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH); 21704a71df50SFrank Blaschka memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data), 21714a71df50SFrank Blaschka &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH); 21724a71df50SFrank Blaschka 21734a71df50SFrank Blaschka rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob, 21744a71df50SFrank Blaschka qeth_cm_enable_cb, NULL); 21754a71df50SFrank Blaschka return rc; 21764a71df50SFrank Blaschka } 21774a71df50SFrank Blaschka 21784a71df50SFrank Blaschka static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply, 21794a71df50SFrank Blaschka unsigned long data) 21804a71df50SFrank Blaschka { 21814a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 21824a71df50SFrank Blaschka 2183d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "cmsetpcb"); 21844a71df50SFrank Blaschka 21854a71df50SFrank Blaschka iob = (struct qeth_cmd_buffer *) data; 21864a71df50SFrank Blaschka memcpy(&card->token.cm_connection_r, 21874a71df50SFrank Blaschka QETH_CM_SETUP_RESP_DEST_ADDR(iob->data), 21884a71df50SFrank Blaschka QETH_MPC_TOKEN_LENGTH); 21894a71df50SFrank Blaschka return 0; 21904a71df50SFrank Blaschka } 21914a71df50SFrank Blaschka 21924a71df50SFrank Blaschka static int qeth_cm_setup(struct qeth_card *card) 21934a71df50SFrank Blaschka { 21944a71df50SFrank Blaschka int rc; 21954a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 21964a71df50SFrank Blaschka 2197d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "cmsetup"); 21984a71df50SFrank Blaschka 21994a71df50SFrank Blaschka iob = qeth_wait_for_buffer(&card->write); 22004a71df50SFrank Blaschka memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE); 22014a71df50SFrank Blaschka memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data), 22024a71df50SFrank Blaschka &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH); 22034a71df50SFrank Blaschka memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data), 22044a71df50SFrank Blaschka &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH); 22054a71df50SFrank Blaschka memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data), 22064a71df50SFrank Blaschka &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH); 22074a71df50SFrank Blaschka rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob, 22084a71df50SFrank Blaschka qeth_cm_setup_cb, NULL); 22094a71df50SFrank Blaschka return rc; 22104a71df50SFrank Blaschka } 22114a71df50SFrank Blaschka 22128ce7a9e0SJulian Wiedmann static int qeth_update_max_mtu(struct qeth_card *card, unsigned int max_mtu) 22134a71df50SFrank Blaschka { 22148ce7a9e0SJulian Wiedmann struct net_device *dev = card->dev; 22158ce7a9e0SJulian Wiedmann unsigned int new_mtu; 22168ce7a9e0SJulian Wiedmann 22178ce7a9e0SJulian Wiedmann if (!max_mtu) { 22188ce7a9e0SJulian Wiedmann /* IQD needs accurate max MTU to set up its RX buffers: */ 22198ce7a9e0SJulian Wiedmann if (IS_IQD(card)) 22208ce7a9e0SJulian Wiedmann return -EINVAL; 22218ce7a9e0SJulian Wiedmann /* tolerate quirky HW: */ 22228ce7a9e0SJulian Wiedmann max_mtu = ETH_MAX_MTU; 22234a71df50SFrank Blaschka } 22248ce7a9e0SJulian Wiedmann 22258ce7a9e0SJulian Wiedmann rtnl_lock(); 22268ce7a9e0SJulian Wiedmann if (IS_IQD(card)) { 22278ce7a9e0SJulian Wiedmann /* move any device with default MTU to new max MTU: */ 22288ce7a9e0SJulian Wiedmann new_mtu = (dev->mtu == dev->max_mtu) ? max_mtu : dev->mtu; 22298ce7a9e0SJulian Wiedmann 22308ce7a9e0SJulian Wiedmann /* adjust RX buffer size to new max MTU: */ 22318ce7a9e0SJulian Wiedmann card->qdio.in_buf_size = max_mtu + 2 * PAGE_SIZE; 22328ce7a9e0SJulian Wiedmann if (dev->max_mtu && dev->max_mtu != max_mtu) 22338ce7a9e0SJulian Wiedmann qeth_free_qdio_buffers(card); 22348ce7a9e0SJulian Wiedmann } else { 22358ce7a9e0SJulian Wiedmann if (dev->mtu) 22368ce7a9e0SJulian Wiedmann new_mtu = dev->mtu; 22378ce7a9e0SJulian Wiedmann /* default MTUs for first setup: */ 22384fda3354SJulian Wiedmann else if (IS_LAYER2(card)) 22398ce7a9e0SJulian Wiedmann new_mtu = ETH_DATA_LEN; 22408ce7a9e0SJulian Wiedmann else 22418ce7a9e0SJulian Wiedmann new_mtu = ETH_DATA_LEN - 8; /* allow for LLC + SNAP */ 22428ce7a9e0SJulian Wiedmann } 22438ce7a9e0SJulian Wiedmann 22448ce7a9e0SJulian Wiedmann dev->max_mtu = max_mtu; 22458ce7a9e0SJulian Wiedmann dev->mtu = min(new_mtu, max_mtu); 22468ce7a9e0SJulian Wiedmann rtnl_unlock(); 22478ce7a9e0SJulian Wiedmann return 0; 22484a71df50SFrank Blaschka } 22494a71df50SFrank Blaschka 2250cef6ff22SJulian Wiedmann static int qeth_get_mtu_outof_framesize(int framesize) 22514a71df50SFrank Blaschka { 22524a71df50SFrank Blaschka switch (framesize) { 22534a71df50SFrank Blaschka case 0x4000: 22544a71df50SFrank Blaschka return 8192; 22554a71df50SFrank Blaschka case 0x6000: 22564a71df50SFrank Blaschka return 16384; 22574a71df50SFrank Blaschka case 0xa000: 22584a71df50SFrank Blaschka return 32768; 22594a71df50SFrank Blaschka case 0xffff: 22604a71df50SFrank Blaschka return 57344; 22614a71df50SFrank Blaschka default: 22624a71df50SFrank Blaschka return 0; 22634a71df50SFrank Blaschka } 22644a71df50SFrank Blaschka } 22654a71df50SFrank Blaschka 22664a71df50SFrank Blaschka static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply, 22674a71df50SFrank Blaschka unsigned long data) 22684a71df50SFrank Blaschka { 22694a71df50SFrank Blaschka __u16 mtu, framesize; 22704a71df50SFrank Blaschka __u16 len; 22714a71df50SFrank Blaschka __u8 link_type; 22724a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 22734a71df50SFrank Blaschka 2274d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "ulpenacb"); 22754a71df50SFrank Blaschka 22764a71df50SFrank Blaschka iob = (struct qeth_cmd_buffer *) data; 22774a71df50SFrank Blaschka memcpy(&card->token.ulp_filter_r, 22784a71df50SFrank Blaschka QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data), 22794a71df50SFrank Blaschka QETH_MPC_TOKEN_LENGTH); 22809853b97bSFrank Blaschka if (card->info.type == QETH_CARD_TYPE_IQD) { 22814a71df50SFrank Blaschka memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2); 22824a71df50SFrank Blaschka mtu = qeth_get_mtu_outof_framesize(framesize); 22834a71df50SFrank Blaschka } else { 22848ce7a9e0SJulian Wiedmann mtu = *(__u16 *)QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data); 22854a71df50SFrank Blaschka } 22868ce7a9e0SJulian Wiedmann *(u16 *)reply->param = mtu; 22874a71df50SFrank Blaschka 22884a71df50SFrank Blaschka memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2); 22894a71df50SFrank Blaschka if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) { 22904a71df50SFrank Blaschka memcpy(&link_type, 22914a71df50SFrank Blaschka QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1); 22924a71df50SFrank Blaschka card->info.link_type = link_type; 22934a71df50SFrank Blaschka } else 22944a71df50SFrank Blaschka card->info.link_type = 0; 229501fc3e86SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "link%d", card->info.link_type); 22964a71df50SFrank Blaschka return 0; 22974a71df50SFrank Blaschka } 22984a71df50SFrank Blaschka 229973657a3eSJulian Wiedmann static u8 qeth_mpc_select_prot_type(struct qeth_card *card) 230073657a3eSJulian Wiedmann { 230173657a3eSJulian Wiedmann if (IS_OSN(card)) 230273657a3eSJulian Wiedmann return QETH_PROT_OSN2; 23034fda3354SJulian Wiedmann return IS_LAYER2(card) ? QETH_PROT_LAYER2 : QETH_PROT_TCPIP; 230473657a3eSJulian Wiedmann } 230573657a3eSJulian Wiedmann 23064a71df50SFrank Blaschka static int qeth_ulp_enable(struct qeth_card *card) 23074a71df50SFrank Blaschka { 230873657a3eSJulian Wiedmann u8 prot_type = qeth_mpc_select_prot_type(card); 23094a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 23108ce7a9e0SJulian Wiedmann u16 max_mtu; 231173657a3eSJulian Wiedmann int rc; 23124a71df50SFrank Blaschka 23134a71df50SFrank Blaschka /*FIXME: trace view callbacks*/ 2314d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "ulpenabl"); 23154a71df50SFrank Blaschka 23164a71df50SFrank Blaschka iob = qeth_wait_for_buffer(&card->write); 23174a71df50SFrank Blaschka memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE); 23184a71df50SFrank Blaschka 231992d27209SJulian Wiedmann *(QETH_ULP_ENABLE_LINKNUM(iob->data)) = (u8) card->dev->dev_port; 23204a71df50SFrank Blaschka memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1); 23214a71df50SFrank Blaschka memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data), 23224a71df50SFrank Blaschka &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); 23234a71df50SFrank Blaschka memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data), 23244a71df50SFrank Blaschka &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH); 23254a71df50SFrank Blaschka rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob, 23268ce7a9e0SJulian Wiedmann qeth_ulp_enable_cb, &max_mtu); 23278ce7a9e0SJulian Wiedmann if (rc) 23284a71df50SFrank Blaschka return rc; 23298ce7a9e0SJulian Wiedmann return qeth_update_max_mtu(card, max_mtu); 23304a71df50SFrank Blaschka } 23314a71df50SFrank Blaschka 23324a71df50SFrank Blaschka static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply, 23334a71df50SFrank Blaschka unsigned long data) 23344a71df50SFrank Blaschka { 23354a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 23364a71df50SFrank Blaschka 2337d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "ulpstpcb"); 23384a71df50SFrank Blaschka 23394a71df50SFrank Blaschka iob = (struct qeth_cmd_buffer *) data; 23404a71df50SFrank Blaschka memcpy(&card->token.ulp_connection_r, 23414a71df50SFrank Blaschka QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), 23424a71df50SFrank Blaschka QETH_MPC_TOKEN_LENGTH); 234365a1f898SUrsula Braun if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), 234465a1f898SUrsula Braun 3)) { 234565a1f898SUrsula Braun QETH_DBF_TEXT(SETUP, 2, "olmlimit"); 234665a1f898SUrsula Braun dev_err(&card->gdev->dev, "A connection could not be " 234765a1f898SUrsula Braun "established because of an OLM limit\n"); 23484b7ae122SJulian Wiedmann return -EMLINK; 234965a1f898SUrsula Braun } 23507bf9bcffSStefan Raspl return 0; 23514a71df50SFrank Blaschka } 23524a71df50SFrank Blaschka 23534a71df50SFrank Blaschka static int qeth_ulp_setup(struct qeth_card *card) 23544a71df50SFrank Blaschka { 23554a71df50SFrank Blaschka int rc; 23564a71df50SFrank Blaschka __u16 temp; 23574a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 23584a71df50SFrank Blaschka struct ccw_dev_id dev_id; 23594a71df50SFrank Blaschka 2360d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "ulpsetup"); 23614a71df50SFrank Blaschka 23624a71df50SFrank Blaschka iob = qeth_wait_for_buffer(&card->write); 23634a71df50SFrank Blaschka memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE); 23644a71df50SFrank Blaschka 23654a71df50SFrank Blaschka memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data), 23664a71df50SFrank Blaschka &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); 23674a71df50SFrank Blaschka memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data), 23684a71df50SFrank Blaschka &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH); 23694a71df50SFrank Blaschka memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data), 23704a71df50SFrank Blaschka &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH); 23714a71df50SFrank Blaschka 23724a71df50SFrank Blaschka ccw_device_get_id(CARD_DDEV(card), &dev_id); 23734a71df50SFrank Blaschka memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2); 23744a71df50SFrank Blaschka temp = (card->info.cula << 8) + card->info.unit_addr2; 23754a71df50SFrank Blaschka memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2); 23764a71df50SFrank Blaschka rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob, 23774a71df50SFrank Blaschka qeth_ulp_setup_cb, NULL); 23784a71df50SFrank Blaschka return rc; 23794a71df50SFrank Blaschka } 23804a71df50SFrank Blaschka 23810da9581dSEinar Lueck static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *q, int bidx) 23820da9581dSEinar Lueck { 23830da9581dSEinar Lueck struct qeth_qdio_out_buffer *newbuf; 23840da9581dSEinar Lueck 23850da9581dSEinar Lueck newbuf = kmem_cache_zalloc(qeth_qdio_outbuf_cache, GFP_ATOMIC); 23863b346c18SJulian Wiedmann if (!newbuf) 23873b346c18SJulian Wiedmann return -ENOMEM; 23883b346c18SJulian Wiedmann 2389d445a4e2SSebastian Ott newbuf->buffer = q->qdio_bufs[bidx]; 23900da9581dSEinar Lueck skb_queue_head_init(&newbuf->skb_list); 23910da9581dSEinar Lueck lockdep_set_class(&newbuf->skb_list.lock, &qdio_out_skb_queue_key); 23920da9581dSEinar Lueck newbuf->q = q; 23930da9581dSEinar Lueck newbuf->next_pending = q->bufs[bidx]; 23940da9581dSEinar Lueck atomic_set(&newbuf->state, QETH_QDIO_BUF_EMPTY); 23950da9581dSEinar Lueck q->bufs[bidx] = newbuf; 23963b346c18SJulian Wiedmann return 0; 23970da9581dSEinar Lueck } 23980da9581dSEinar Lueck 2399afa0c590SJulian Wiedmann static void qeth_free_output_queue(struct qeth_qdio_out_q *q) 2400d445a4e2SSebastian Ott { 2401d445a4e2SSebastian Ott if (!q) 2402d445a4e2SSebastian Ott return; 2403d445a4e2SSebastian Ott 2404afa0c590SJulian Wiedmann qeth_clear_outq_buffers(q, 1); 2405d445a4e2SSebastian Ott qdio_free_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q); 2406d445a4e2SSebastian Ott kfree(q); 2407d445a4e2SSebastian Ott } 2408d445a4e2SSebastian Ott 2409d445a4e2SSebastian Ott static struct qeth_qdio_out_q *qeth_alloc_qdio_out_buf(void) 2410d445a4e2SSebastian Ott { 2411d445a4e2SSebastian Ott struct qeth_qdio_out_q *q = kzalloc(sizeof(*q), GFP_KERNEL); 2412d445a4e2SSebastian Ott 2413d445a4e2SSebastian Ott if (!q) 2414d445a4e2SSebastian Ott return NULL; 2415d445a4e2SSebastian Ott 2416d445a4e2SSebastian Ott if (qdio_alloc_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q)) { 2417d445a4e2SSebastian Ott kfree(q); 2418d445a4e2SSebastian Ott return NULL; 2419d445a4e2SSebastian Ott } 2420d445a4e2SSebastian Ott return q; 2421d445a4e2SSebastian Ott } 24220da9581dSEinar Lueck 24234a71df50SFrank Blaschka static int qeth_alloc_qdio_buffers(struct qeth_card *card) 24244a71df50SFrank Blaschka { 24254a71df50SFrank Blaschka int i, j; 24264a71df50SFrank Blaschka 2427d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "allcqdbf"); 24284a71df50SFrank Blaschka 24294a71df50SFrank Blaschka if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED, 24304a71df50SFrank Blaschka QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED) 24314a71df50SFrank Blaschka return 0; 24324a71df50SFrank Blaschka 24334601ba6cSSebastian Ott QETH_DBF_TEXT(SETUP, 2, "inq"); 24344601ba6cSSebastian Ott card->qdio.in_q = qeth_alloc_qdio_queue(); 24354a71df50SFrank Blaschka if (!card->qdio.in_q) 24364a71df50SFrank Blaschka goto out_nomem; 24374601ba6cSSebastian Ott 24384a71df50SFrank Blaschka /* inbound buffer pool */ 24394a71df50SFrank Blaschka if (qeth_alloc_buffer_pool(card)) 24404a71df50SFrank Blaschka goto out_freeinq; 24410da9581dSEinar Lueck 24424a71df50SFrank Blaschka /* outbound */ 24434a71df50SFrank Blaschka card->qdio.out_qs = 24446396bb22SKees Cook kcalloc(card->qdio.no_out_queues, 24456396bb22SKees Cook sizeof(struct qeth_qdio_out_q *), 24466396bb22SKees Cook GFP_KERNEL); 24474a71df50SFrank Blaschka if (!card->qdio.out_qs) 24484a71df50SFrank Blaschka goto out_freepool; 24494a71df50SFrank Blaschka for (i = 0; i < card->qdio.no_out_queues; ++i) { 2450d445a4e2SSebastian Ott card->qdio.out_qs[i] = qeth_alloc_qdio_out_buf(); 24514a71df50SFrank Blaschka if (!card->qdio.out_qs[i]) 24524a71df50SFrank Blaschka goto out_freeoutq; 2453d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "outq %i", i); 2454d11ba0c4SPeter Tiedemann QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *)); 24554a71df50SFrank Blaschka card->qdio.out_qs[i]->queue_no = i; 24564a71df50SFrank Blaschka /* give outbound qeth_qdio_buffers their qdio_buffers */ 24574a71df50SFrank Blaschka for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { 245818af5c17SStefan Raspl WARN_ON(card->qdio.out_qs[i]->bufs[j] != NULL); 24590da9581dSEinar Lueck if (qeth_init_qdio_out_buf(card->qdio.out_qs[i], j)) 24600da9581dSEinar Lueck goto out_freeoutqbufs; 24614a71df50SFrank Blaschka } 24624a71df50SFrank Blaschka } 24630da9581dSEinar Lueck 24640da9581dSEinar Lueck /* completion */ 24650da9581dSEinar Lueck if (qeth_alloc_cq(card)) 24660da9581dSEinar Lueck goto out_freeoutq; 24670da9581dSEinar Lueck 24684a71df50SFrank Blaschka return 0; 24694a71df50SFrank Blaschka 24700da9581dSEinar Lueck out_freeoutqbufs: 24710da9581dSEinar Lueck while (j > 0) { 24720da9581dSEinar Lueck --j; 24730da9581dSEinar Lueck kmem_cache_free(qeth_qdio_outbuf_cache, 24740da9581dSEinar Lueck card->qdio.out_qs[i]->bufs[j]); 24750da9581dSEinar Lueck card->qdio.out_qs[i]->bufs[j] = NULL; 24760da9581dSEinar Lueck } 24774a71df50SFrank Blaschka out_freeoutq: 2478afa0c590SJulian Wiedmann while (i > 0) 2479afa0c590SJulian Wiedmann qeth_free_output_queue(card->qdio.out_qs[--i]); 24804a71df50SFrank Blaschka kfree(card->qdio.out_qs); 24814a71df50SFrank Blaschka card->qdio.out_qs = NULL; 24824a71df50SFrank Blaschka out_freepool: 24834a71df50SFrank Blaschka qeth_free_buffer_pool(card); 24844a71df50SFrank Blaschka out_freeinq: 24854601ba6cSSebastian Ott qeth_free_qdio_queue(card->qdio.in_q); 24864a71df50SFrank Blaschka card->qdio.in_q = NULL; 24874a71df50SFrank Blaschka out_nomem: 24884a71df50SFrank Blaschka atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); 24894a71df50SFrank Blaschka return -ENOMEM; 24904a71df50SFrank Blaschka } 24914a71df50SFrank Blaschka 2492d445a4e2SSebastian Ott static void qeth_free_qdio_buffers(struct qeth_card *card) 2493d445a4e2SSebastian Ott { 2494d445a4e2SSebastian Ott int i, j; 2495d445a4e2SSebastian Ott 2496d445a4e2SSebastian Ott if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) == 2497d445a4e2SSebastian Ott QETH_QDIO_UNINITIALIZED) 2498d445a4e2SSebastian Ott return; 2499d445a4e2SSebastian Ott 2500d445a4e2SSebastian Ott qeth_free_cq(card); 2501d445a4e2SSebastian Ott cancel_delayed_work_sync(&card->buffer_reclaim_work); 2502d445a4e2SSebastian Ott for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { 2503d445a4e2SSebastian Ott if (card->qdio.in_q->bufs[j].rx_skb) 2504d445a4e2SSebastian Ott dev_kfree_skb_any(card->qdio.in_q->bufs[j].rx_skb); 2505d445a4e2SSebastian Ott } 2506d445a4e2SSebastian Ott qeth_free_qdio_queue(card->qdio.in_q); 2507d445a4e2SSebastian Ott card->qdio.in_q = NULL; 2508d445a4e2SSebastian Ott /* inbound buffer pool */ 2509d445a4e2SSebastian Ott qeth_free_buffer_pool(card); 2510d445a4e2SSebastian Ott /* free outbound qdio_qs */ 2511d445a4e2SSebastian Ott if (card->qdio.out_qs) { 2512afa0c590SJulian Wiedmann for (i = 0; i < card->qdio.no_out_queues; i++) 2513afa0c590SJulian Wiedmann qeth_free_output_queue(card->qdio.out_qs[i]); 2514d445a4e2SSebastian Ott kfree(card->qdio.out_qs); 2515d445a4e2SSebastian Ott card->qdio.out_qs = NULL; 2516d445a4e2SSebastian Ott } 2517d445a4e2SSebastian Ott } 2518d445a4e2SSebastian Ott 25194a71df50SFrank Blaschka static void qeth_create_qib_param_field(struct qeth_card *card, 25204a71df50SFrank Blaschka char *param_field) 25214a71df50SFrank Blaschka { 25224a71df50SFrank Blaschka 25234a71df50SFrank Blaschka param_field[0] = _ascebc['P']; 25244a71df50SFrank Blaschka param_field[1] = _ascebc['C']; 25254a71df50SFrank Blaschka param_field[2] = _ascebc['I']; 25264a71df50SFrank Blaschka param_field[3] = _ascebc['T']; 25274a71df50SFrank Blaschka *((unsigned int *) (¶m_field[4])) = QETH_PCI_THRESHOLD_A(card); 25284a71df50SFrank Blaschka *((unsigned int *) (¶m_field[8])) = QETH_PCI_THRESHOLD_B(card); 25294a71df50SFrank Blaschka *((unsigned int *) (¶m_field[12])) = QETH_PCI_TIMER_VALUE(card); 25304a71df50SFrank Blaschka } 25314a71df50SFrank Blaschka 25324a71df50SFrank Blaschka static void qeth_create_qib_param_field_blkt(struct qeth_card *card, 25334a71df50SFrank Blaschka char *param_field) 25344a71df50SFrank Blaschka { 25354a71df50SFrank Blaschka param_field[16] = _ascebc['B']; 25364a71df50SFrank Blaschka param_field[17] = _ascebc['L']; 25374a71df50SFrank Blaschka param_field[18] = _ascebc['K']; 25384a71df50SFrank Blaschka param_field[19] = _ascebc['T']; 25394a71df50SFrank Blaschka *((unsigned int *) (¶m_field[20])) = card->info.blkt.time_total; 25404a71df50SFrank Blaschka *((unsigned int *) (¶m_field[24])) = card->info.blkt.inter_packet; 25414a71df50SFrank Blaschka *((unsigned int *) (¶m_field[28])) = 25424a71df50SFrank Blaschka card->info.blkt.inter_packet_jumbo; 25434a71df50SFrank Blaschka } 25444a71df50SFrank Blaschka 25454a71df50SFrank Blaschka static int qeth_qdio_activate(struct qeth_card *card) 25464a71df50SFrank Blaschka { 2547d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 3, "qdioact"); 2548779e6e1cSJan Glauber return qdio_activate(CARD_DDEV(card)); 25494a71df50SFrank Blaschka } 25504a71df50SFrank Blaschka 25514a71df50SFrank Blaschka static int qeth_dm_act(struct qeth_card *card) 25524a71df50SFrank Blaschka { 25534a71df50SFrank Blaschka int rc; 25544a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 25554a71df50SFrank Blaschka 2556d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "dmact"); 25574a71df50SFrank Blaschka 25584a71df50SFrank Blaschka iob = qeth_wait_for_buffer(&card->write); 25594a71df50SFrank Blaschka memcpy(iob->data, DM_ACT, DM_ACT_SIZE); 25604a71df50SFrank Blaschka 25614a71df50SFrank Blaschka memcpy(QETH_DM_ACT_DEST_ADDR(iob->data), 25624a71df50SFrank Blaschka &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); 25634a71df50SFrank Blaschka memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data), 25644a71df50SFrank Blaschka &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); 25654a71df50SFrank Blaschka rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL); 25664a71df50SFrank Blaschka return rc; 25674a71df50SFrank Blaschka } 25684a71df50SFrank Blaschka 25694a71df50SFrank Blaschka static int qeth_mpc_initialize(struct qeth_card *card) 25704a71df50SFrank Blaschka { 25714a71df50SFrank Blaschka int rc; 25724a71df50SFrank Blaschka 2573d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "mpcinit"); 25744a71df50SFrank Blaschka 25754a71df50SFrank Blaschka rc = qeth_issue_next_read(card); 25764a71df50SFrank Blaschka if (rc) { 2577d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 25784a71df50SFrank Blaschka return rc; 25794a71df50SFrank Blaschka } 25804a71df50SFrank Blaschka rc = qeth_cm_enable(card); 25814a71df50SFrank Blaschka if (rc) { 2582d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); 25834a71df50SFrank Blaschka goto out_qdio; 25844a71df50SFrank Blaschka } 25854a71df50SFrank Blaschka rc = qeth_cm_setup(card); 25864a71df50SFrank Blaschka if (rc) { 2587d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); 25884a71df50SFrank Blaschka goto out_qdio; 25894a71df50SFrank Blaschka } 25904a71df50SFrank Blaschka rc = qeth_ulp_enable(card); 25914a71df50SFrank Blaschka if (rc) { 2592d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); 25934a71df50SFrank Blaschka goto out_qdio; 25944a71df50SFrank Blaschka } 25954a71df50SFrank Blaschka rc = qeth_ulp_setup(card); 25964a71df50SFrank Blaschka if (rc) { 2597d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); 25984a71df50SFrank Blaschka goto out_qdio; 25994a71df50SFrank Blaschka } 26004a71df50SFrank Blaschka rc = qeth_alloc_qdio_buffers(card); 26014a71df50SFrank Blaschka if (rc) { 2602d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); 26034a71df50SFrank Blaschka goto out_qdio; 26044a71df50SFrank Blaschka } 26054a71df50SFrank Blaschka rc = qeth_qdio_establish(card); 26064a71df50SFrank Blaschka if (rc) { 2607d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); 26084a71df50SFrank Blaschka qeth_free_qdio_buffers(card); 26094a71df50SFrank Blaschka goto out_qdio; 26104a71df50SFrank Blaschka } 26114a71df50SFrank Blaschka rc = qeth_qdio_activate(card); 26124a71df50SFrank Blaschka if (rc) { 2613d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc); 26144a71df50SFrank Blaschka goto out_qdio; 26154a71df50SFrank Blaschka } 26164a71df50SFrank Blaschka rc = qeth_dm_act(card); 26174a71df50SFrank Blaschka if (rc) { 2618d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc); 26194a71df50SFrank Blaschka goto out_qdio; 26204a71df50SFrank Blaschka } 26214a71df50SFrank Blaschka 26224a71df50SFrank Blaschka return 0; 26234a71df50SFrank Blaschka out_qdio: 26244a71df50SFrank Blaschka qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD); 262522ae2790SUrsula Braun qdio_free(CARD_DDEV(card)); 26264a71df50SFrank Blaschka return rc; 26274a71df50SFrank Blaschka } 26284a71df50SFrank Blaschka 26294a71df50SFrank Blaschka void qeth_print_status_message(struct qeth_card *card) 26304a71df50SFrank Blaschka { 26314a71df50SFrank Blaschka switch (card->info.type) { 26325113fec0SUrsula Braun case QETH_CARD_TYPE_OSD: 26335113fec0SUrsula Braun case QETH_CARD_TYPE_OSM: 26345113fec0SUrsula Braun case QETH_CARD_TYPE_OSX: 26354a71df50SFrank Blaschka /* VM will use a non-zero first character 26364a71df50SFrank Blaschka * to indicate a HiperSockets like reporting 26374a71df50SFrank Blaschka * of the level OSA sets the first character to zero 26384a71df50SFrank Blaschka * */ 26394a71df50SFrank Blaschka if (!card->info.mcl_level[0]) { 26404a71df50SFrank Blaschka sprintf(card->info.mcl_level, "%02x%02x", 26414a71df50SFrank Blaschka card->info.mcl_level[2], 26424a71df50SFrank Blaschka card->info.mcl_level[3]); 26434a71df50SFrank Blaschka break; 26444a71df50SFrank Blaschka } 26454a71df50SFrank Blaschka /* fallthrough */ 26464a71df50SFrank Blaschka case QETH_CARD_TYPE_IQD: 2647906f1f07SKlaus-Dieter Wacker if ((card->info.guestlan) || 2648906f1f07SKlaus-Dieter Wacker (card->info.mcl_level[0] & 0x80)) { 26494a71df50SFrank Blaschka card->info.mcl_level[0] = (char) _ebcasc[(__u8) 26504a71df50SFrank Blaschka card->info.mcl_level[0]]; 26514a71df50SFrank Blaschka card->info.mcl_level[1] = (char) _ebcasc[(__u8) 26524a71df50SFrank Blaschka card->info.mcl_level[1]]; 26534a71df50SFrank Blaschka card->info.mcl_level[2] = (char) _ebcasc[(__u8) 26544a71df50SFrank Blaschka card->info.mcl_level[2]]; 26554a71df50SFrank Blaschka card->info.mcl_level[3] = (char) _ebcasc[(__u8) 26564a71df50SFrank Blaschka card->info.mcl_level[3]]; 26574a71df50SFrank Blaschka card->info.mcl_level[QETH_MCL_LENGTH] = 0; 26584a71df50SFrank Blaschka } 26594a71df50SFrank Blaschka break; 26604a71df50SFrank Blaschka default: 26614a71df50SFrank Blaschka memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1); 26624a71df50SFrank Blaschka } 2663239ff408SUrsula Braun dev_info(&card->gdev->dev, 2664239ff408SUrsula Braun "Device is a%s card%s%s%s\nwith link type %s.\n", 2665239ff408SUrsula Braun qeth_get_cardname(card), 2666239ff408SUrsula Braun (card->info.mcl_level[0]) ? " (level: " : "", 2667239ff408SUrsula Braun (card->info.mcl_level[0]) ? card->info.mcl_level : "", 2668239ff408SUrsula Braun (card->info.mcl_level[0]) ? ")" : "", 2669239ff408SUrsula Braun qeth_get_cardname_short(card)); 26704a71df50SFrank Blaschka } 26714a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_print_status_message); 26724a71df50SFrank Blaschka 26734a71df50SFrank Blaschka static void qeth_initialize_working_pool_list(struct qeth_card *card) 26744a71df50SFrank Blaschka { 26754a71df50SFrank Blaschka struct qeth_buffer_pool_entry *entry; 26764a71df50SFrank Blaschka 2677847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "inwrklst"); 26784a71df50SFrank Blaschka 26794a71df50SFrank Blaschka list_for_each_entry(entry, 26804a71df50SFrank Blaschka &card->qdio.init_pool.entry_list, init_list) { 26814a71df50SFrank Blaschka qeth_put_buffer_pool_entry(card, entry); 26824a71df50SFrank Blaschka } 26834a71df50SFrank Blaschka } 26844a71df50SFrank Blaschka 2685cef6ff22SJulian Wiedmann static struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry( 26864a71df50SFrank Blaschka struct qeth_card *card) 26874a71df50SFrank Blaschka { 26884a71df50SFrank Blaschka struct list_head *plh; 26894a71df50SFrank Blaschka struct qeth_buffer_pool_entry *entry; 26904a71df50SFrank Blaschka int i, free; 26914a71df50SFrank Blaschka struct page *page; 26924a71df50SFrank Blaschka 26934a71df50SFrank Blaschka if (list_empty(&card->qdio.in_buf_pool.entry_list)) 26944a71df50SFrank Blaschka return NULL; 26954a71df50SFrank Blaschka 26964a71df50SFrank Blaschka list_for_each(plh, &card->qdio.in_buf_pool.entry_list) { 26974a71df50SFrank Blaschka entry = list_entry(plh, struct qeth_buffer_pool_entry, list); 26984a71df50SFrank Blaschka free = 1; 26994a71df50SFrank Blaschka for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { 27004a71df50SFrank Blaschka if (page_count(virt_to_page(entry->elements[i])) > 1) { 27014a71df50SFrank Blaschka free = 0; 27024a71df50SFrank Blaschka break; 27034a71df50SFrank Blaschka } 27044a71df50SFrank Blaschka } 27054a71df50SFrank Blaschka if (free) { 27064a71df50SFrank Blaschka list_del_init(&entry->list); 27074a71df50SFrank Blaschka return entry; 27084a71df50SFrank Blaschka } 27094a71df50SFrank Blaschka } 27104a71df50SFrank Blaschka 27114a71df50SFrank Blaschka /* no free buffer in pool so take first one and swap pages */ 27124a71df50SFrank Blaschka entry = list_entry(card->qdio.in_buf_pool.entry_list.next, 27134a71df50SFrank Blaschka struct qeth_buffer_pool_entry, list); 27144a71df50SFrank Blaschka for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { 27154a71df50SFrank Blaschka if (page_count(virt_to_page(entry->elements[i])) > 1) { 2716508b3c4fSUrsula Braun page = alloc_page(GFP_ATOMIC); 27174a71df50SFrank Blaschka if (!page) { 27184a71df50SFrank Blaschka return NULL; 27194a71df50SFrank Blaschka } else { 27204a71df50SFrank Blaschka free_page((unsigned long)entry->elements[i]); 27214a71df50SFrank Blaschka entry->elements[i] = page_address(page); 27224a71df50SFrank Blaschka if (card->options.performance_stats) 27234a71df50SFrank Blaschka card->perf_stats.sg_alloc_page_rx++; 27244a71df50SFrank Blaschka } 27254a71df50SFrank Blaschka } 27264a71df50SFrank Blaschka } 27274a71df50SFrank Blaschka list_del_init(&entry->list); 27284a71df50SFrank Blaschka return entry; 27294a71df50SFrank Blaschka } 27304a71df50SFrank Blaschka 27314a71df50SFrank Blaschka static int qeth_init_input_buffer(struct qeth_card *card, 27324a71df50SFrank Blaschka struct qeth_qdio_buffer *buf) 27334a71df50SFrank Blaschka { 27344a71df50SFrank Blaschka struct qeth_buffer_pool_entry *pool_entry; 27354a71df50SFrank Blaschka int i; 27364a71df50SFrank Blaschka 2737b3332930SFrank Blaschka if ((card->options.cq == QETH_CQ_ENABLED) && (!buf->rx_skb)) { 273837cf05d2SJulian Wiedmann buf->rx_skb = netdev_alloc_skb(card->dev, 273937cf05d2SJulian Wiedmann QETH_RX_PULL_LEN + ETH_HLEN); 2740b3332930SFrank Blaschka if (!buf->rx_skb) 2741b3332930SFrank Blaschka return 1; 2742b3332930SFrank Blaschka } 2743b3332930SFrank Blaschka 27444a71df50SFrank Blaschka pool_entry = qeth_find_free_buffer_pool_entry(card); 27454a71df50SFrank Blaschka if (!pool_entry) 27464a71df50SFrank Blaschka return 1; 27474a71df50SFrank Blaschka 27484a71df50SFrank Blaschka /* 27494a71df50SFrank Blaschka * since the buffer is accessed only from the input_tasklet 27504a71df50SFrank Blaschka * there shouldn't be a need to synchronize; also, since we use 27514a71df50SFrank Blaschka * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off 27524a71df50SFrank Blaschka * buffers 27534a71df50SFrank Blaschka */ 27544a71df50SFrank Blaschka 27554a71df50SFrank Blaschka buf->pool_entry = pool_entry; 27564a71df50SFrank Blaschka for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { 27574a71df50SFrank Blaschka buf->buffer->element[i].length = PAGE_SIZE; 27584a71df50SFrank Blaschka buf->buffer->element[i].addr = pool_entry->elements[i]; 27594a71df50SFrank Blaschka if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1) 27603ec90878SJan Glauber buf->buffer->element[i].eflags = SBAL_EFLAGS_LAST_ENTRY; 27614a71df50SFrank Blaschka else 27623ec90878SJan Glauber buf->buffer->element[i].eflags = 0; 27633ec90878SJan Glauber buf->buffer->element[i].sflags = 0; 27644a71df50SFrank Blaschka } 27654a71df50SFrank Blaschka return 0; 27664a71df50SFrank Blaschka } 27674a71df50SFrank Blaschka 27684a71df50SFrank Blaschka int qeth_init_qdio_queues(struct qeth_card *card) 27694a71df50SFrank Blaschka { 27704a71df50SFrank Blaschka int i, j; 27714a71df50SFrank Blaschka int rc; 27724a71df50SFrank Blaschka 2773d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "initqdqs"); 27744a71df50SFrank Blaschka 27754a71df50SFrank Blaschka /* inbound queue */ 27761b45c80bSJulian Wiedmann qdio_reset_buffers(card->qdio.in_q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q); 27771b45c80bSJulian Wiedmann memset(&card->rx, 0, sizeof(struct qeth_rx)); 27784a71df50SFrank Blaschka qeth_initialize_working_pool_list(card); 27794a71df50SFrank Blaschka /*give only as many buffers to hardware as we have buffer pool entries*/ 27804a71df50SFrank Blaschka for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i) 27814a71df50SFrank Blaschka qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]); 27824a71df50SFrank Blaschka card->qdio.in_q->next_buf_to_init = 27834a71df50SFrank Blaschka card->qdio.in_buf_pool.buf_count - 1; 27844a71df50SFrank Blaschka rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0, 2785779e6e1cSJan Glauber card->qdio.in_buf_pool.buf_count - 1); 27864a71df50SFrank Blaschka if (rc) { 2787d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 27884a71df50SFrank Blaschka return rc; 27894a71df50SFrank Blaschka } 27900da9581dSEinar Lueck 27910da9581dSEinar Lueck /* completion */ 27920da9581dSEinar Lueck rc = qeth_cq_init(card); 27930da9581dSEinar Lueck if (rc) { 27940da9581dSEinar Lueck return rc; 27950da9581dSEinar Lueck } 27960da9581dSEinar Lueck 27974a71df50SFrank Blaschka /* outbound queue */ 27984a71df50SFrank Blaschka for (i = 0; i < card->qdio.no_out_queues; ++i) { 2799d445a4e2SSebastian Ott qdio_reset_buffers(card->qdio.out_qs[i]->qdio_bufs, 2800d445a4e2SSebastian Ott QDIO_MAX_BUFFERS_PER_Q); 28014a71df50SFrank Blaschka for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { 28024a71df50SFrank Blaschka qeth_clear_output_buffer(card->qdio.out_qs[i], 28033b346c18SJulian Wiedmann card->qdio.out_qs[i]->bufs[j]); 28044a71df50SFrank Blaschka } 28054a71df50SFrank Blaschka card->qdio.out_qs[i]->card = card; 28064a71df50SFrank Blaschka card->qdio.out_qs[i]->next_buf_to_fill = 0; 28074a71df50SFrank Blaschka card->qdio.out_qs[i]->do_pack = 0; 28084a71df50SFrank Blaschka atomic_set(&card->qdio.out_qs[i]->used_buffers, 0); 28094a71df50SFrank Blaschka atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0); 28104a71df50SFrank Blaschka atomic_set(&card->qdio.out_qs[i]->state, 28114a71df50SFrank Blaschka QETH_OUT_Q_UNLOCKED); 28124a71df50SFrank Blaschka } 28134a71df50SFrank Blaschka return 0; 28144a71df50SFrank Blaschka } 28154a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_init_qdio_queues); 28164a71df50SFrank Blaschka 2817cef6ff22SJulian Wiedmann static __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type) 28184a71df50SFrank Blaschka { 28194a71df50SFrank Blaschka switch (link_type) { 28204a71df50SFrank Blaschka case QETH_LINK_TYPE_HSTR: 28214a71df50SFrank Blaschka return 2; 28224a71df50SFrank Blaschka default: 28234a71df50SFrank Blaschka return 1; 28244a71df50SFrank Blaschka } 28254a71df50SFrank Blaschka } 28264a71df50SFrank Blaschka 28274a71df50SFrank Blaschka static void qeth_fill_ipacmd_header(struct qeth_card *card, 2828500abbf0SJulian Wiedmann struct qeth_ipa_cmd *cmd, 2829500abbf0SJulian Wiedmann enum qeth_ipa_cmds command, 28304a71df50SFrank Blaschka enum qeth_prot_versions prot) 28314a71df50SFrank Blaschka { 28324a71df50SFrank Blaschka cmd->hdr.command = command; 28334a71df50SFrank Blaschka cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST; 2834d22ffb5aSJulian Wiedmann /* cmd->hdr.seqno is set by qeth_send_control_data() */ 28354a71df50SFrank Blaschka cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type); 283692d27209SJulian Wiedmann cmd->hdr.rel_adapter_no = (u8) card->dev->dev_port; 28374fda3354SJulian Wiedmann cmd->hdr.prim_version_no = IS_LAYER2(card) ? 2 : 1; 28384a71df50SFrank Blaschka cmd->hdr.param_count = 1; 28394a71df50SFrank Blaschka cmd->hdr.prot_version = prot; 28404a71df50SFrank Blaschka } 28414a71df50SFrank Blaschka 2842c2153277SJulian Wiedmann void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, 2843c2153277SJulian Wiedmann u16 cmd_length) 2844605c9d5fSJulian Wiedmann { 2845c2153277SJulian Wiedmann u16 total_length = IPA_PDU_HEADER_SIZE + cmd_length; 2846605c9d5fSJulian Wiedmann u8 prot_type = qeth_mpc_select_prot_type(card); 2847605c9d5fSJulian Wiedmann 2848605c9d5fSJulian Wiedmann memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); 2849c2153277SJulian Wiedmann memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &total_length, 2); 2850605c9d5fSJulian Wiedmann memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1); 2851c2153277SJulian Wiedmann memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &cmd_length, 2); 2852c2153277SJulian Wiedmann memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &cmd_length, 2); 2853605c9d5fSJulian Wiedmann memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), 2854605c9d5fSJulian Wiedmann &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); 2855c2153277SJulian Wiedmann memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &cmd_length, 2); 2856605c9d5fSJulian Wiedmann } 2857605c9d5fSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd); 2858605c9d5fSJulian Wiedmann 28594a71df50SFrank Blaschka struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card, 28604a71df50SFrank Blaschka enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot) 28614a71df50SFrank Blaschka { 28624a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 28634a71df50SFrank Blaschka 28641aec42bcSThomas Richter iob = qeth_get_buffer(&card->write); 28651aec42bcSThomas Richter if (iob) { 2866c2153277SJulian Wiedmann qeth_prepare_ipa_cmd(card, iob, sizeof(struct qeth_ipa_cmd)); 2867ff5caa7aSJulian Wiedmann qeth_fill_ipacmd_header(card, __ipa_cmd(iob), ipacmd, prot); 28681aec42bcSThomas Richter } else { 28691aec42bcSThomas Richter dev_warn(&card->gdev->dev, 28701aec42bcSThomas Richter "The qeth driver ran out of channel command buffers\n"); 2871e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(1, "device %x ran out of channel command buffers", 2872e19e5be8SJulian Wiedmann CARD_DEVID(card)); 28731aec42bcSThomas Richter } 28744a71df50SFrank Blaschka 28754a71df50SFrank Blaschka return iob; 28764a71df50SFrank Blaschka } 28774a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer); 28784a71df50SFrank Blaschka 2879efbbc1d5SEugene Crosser /** 2880efbbc1d5SEugene Crosser * qeth_send_ipa_cmd() - send an IPA command 2881efbbc1d5SEugene Crosser * 2882efbbc1d5SEugene Crosser * See qeth_send_control_data() for explanation of the arguments. 2883efbbc1d5SEugene Crosser */ 2884efbbc1d5SEugene Crosser 28854a71df50SFrank Blaschka int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, 28864a71df50SFrank Blaschka int (*reply_cb)(struct qeth_card *, struct qeth_reply*, 28874a71df50SFrank Blaschka unsigned long), 28884a71df50SFrank Blaschka void *reply_param) 28894a71df50SFrank Blaschka { 2890c2153277SJulian Wiedmann u16 length; 28914a71df50SFrank Blaschka int rc; 28924a71df50SFrank Blaschka 2893847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "sendipa"); 2894c2153277SJulian Wiedmann memcpy(&length, QETH_IPA_PDU_LEN_TOTAL(iob->data), 2); 2895c2153277SJulian Wiedmann rc = qeth_send_control_data(card, length, iob, reply_cb, reply_param); 2896908abbb5SUrsula Braun if (rc == -ETIME) { 2897908abbb5SUrsula Braun qeth_clear_ipacmd_list(card); 2898908abbb5SUrsula Braun qeth_schedule_recovery(card); 2899908abbb5SUrsula Braun } 29004a71df50SFrank Blaschka return rc; 29014a71df50SFrank Blaschka } 29024a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd); 29034a71df50SFrank Blaschka 29044b7ae122SJulian Wiedmann static int qeth_send_startlan_cb(struct qeth_card *card, 29054b7ae122SJulian Wiedmann struct qeth_reply *reply, unsigned long data) 29064b7ae122SJulian Wiedmann { 29074b7ae122SJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 29084b7ae122SJulian Wiedmann 29094b7ae122SJulian Wiedmann if (cmd->hdr.return_code == IPA_RC_LAN_OFFLINE) 29104b7ae122SJulian Wiedmann return -ENETDOWN; 29114b7ae122SJulian Wiedmann 29124b7ae122SJulian Wiedmann return (cmd->hdr.return_code) ? -EIO : 0; 29134b7ae122SJulian Wiedmann } 29144b7ae122SJulian Wiedmann 291510340510SJulian Wiedmann static int qeth_send_startlan(struct qeth_card *card) 29164a71df50SFrank Blaschka { 29174a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 29184a71df50SFrank Blaschka 2919d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "strtlan"); 29204a71df50SFrank Blaschka 292170919e23SUrsula Braun iob = qeth_get_ipacmd_buffer(card, IPA_CMD_STARTLAN, 0); 29221aec42bcSThomas Richter if (!iob) 29231aec42bcSThomas Richter return -ENOMEM; 29244b7ae122SJulian Wiedmann return qeth_send_ipa_cmd(card, iob, qeth_send_startlan_cb, NULL); 29254a71df50SFrank Blaschka } 29264a71df50SFrank Blaschka 2927686c97eeSJulian Wiedmann static int qeth_setadpparms_inspect_rc(struct qeth_ipa_cmd *cmd) 29284a71df50SFrank Blaschka { 2929686c97eeSJulian Wiedmann if (!cmd->hdr.return_code) 29304a71df50SFrank Blaschka cmd->hdr.return_code = 29314a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.return_code; 2932686c97eeSJulian Wiedmann return cmd->hdr.return_code; 29334a71df50SFrank Blaschka } 29344a71df50SFrank Blaschka 29354a71df50SFrank Blaschka static int qeth_query_setadapterparms_cb(struct qeth_card *card, 29364a71df50SFrank Blaschka struct qeth_reply *reply, unsigned long data) 29374a71df50SFrank Blaschka { 2938686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 29394a71df50SFrank Blaschka 2940847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "quyadpcb"); 2941686c97eeSJulian Wiedmann if (qeth_setadpparms_inspect_rc(cmd)) 2942686c97eeSJulian Wiedmann return 0; 29434a71df50SFrank Blaschka 29445113fec0SUrsula Braun if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) { 29454a71df50SFrank Blaschka card->info.link_type = 29464a71df50SFrank Blaschka cmd->data.setadapterparms.data.query_cmds_supp.lan_type; 29475113fec0SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "lnk %d", card->info.link_type); 29485113fec0SUrsula Braun } 29494a71df50SFrank Blaschka card->options.adp.supported_funcs = 29504a71df50SFrank Blaschka cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds; 2951686c97eeSJulian Wiedmann return 0; 29524a71df50SFrank Blaschka } 29534a71df50SFrank Blaschka 2954eb3fb0baSStefan Raspl static struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card, 29554a71df50SFrank Blaschka __u32 command, __u32 cmdlen) 29564a71df50SFrank Blaschka { 29574a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 29584a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 29594a71df50SFrank Blaschka 29604a71df50SFrank Blaschka iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS, 29614a71df50SFrank Blaschka QETH_PROT_IPV4); 29621aec42bcSThomas Richter if (iob) { 2963ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 29644a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.cmdlength = cmdlen; 29654a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.command_code = command; 29664a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.used_total = 1; 29674a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.seq_no = 1; 29681aec42bcSThomas Richter } 29694a71df50SFrank Blaschka 29704a71df50SFrank Blaschka return iob; 29714a71df50SFrank Blaschka } 29724a71df50SFrank Blaschka 297309960b3aSJulian Wiedmann static int qeth_query_setadapterparms(struct qeth_card *card) 29744a71df50SFrank Blaschka { 29754a71df50SFrank Blaschka int rc; 29764a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 29774a71df50SFrank Blaschka 2978847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "queryadp"); 29794a71df50SFrank Blaschka iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED, 29804a71df50SFrank Blaschka sizeof(struct qeth_ipacmd_setadpparms)); 29811aec42bcSThomas Richter if (!iob) 29821aec42bcSThomas Richter return -ENOMEM; 29834a71df50SFrank Blaschka rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL); 29844a71df50SFrank Blaschka return rc; 29854a71df50SFrank Blaschka } 29864a71df50SFrank Blaschka 29871da74b1cSFrank Blaschka static int qeth_query_ipassists_cb(struct qeth_card *card, 29881da74b1cSFrank Blaschka struct qeth_reply *reply, unsigned long data) 29891da74b1cSFrank Blaschka { 29901da74b1cSFrank Blaschka struct qeth_ipa_cmd *cmd; 29911da74b1cSFrank Blaschka 29921da74b1cSFrank Blaschka QETH_DBF_TEXT(SETUP, 2, "qipasscb"); 29931da74b1cSFrank Blaschka 29941da74b1cSFrank Blaschka cmd = (struct qeth_ipa_cmd *) data; 2995a134884aSStefan Raspl 2996a134884aSStefan Raspl switch (cmd->hdr.return_code) { 2997a134884aSStefan Raspl case IPA_RC_NOTSUPP: 2998a134884aSStefan Raspl case IPA_RC_L2_UNSUPPORTED_CMD: 2999a134884aSStefan Raspl QETH_DBF_TEXT(SETUP, 2, "ipaunsup"); 3000a134884aSStefan Raspl card->options.ipa4.supported_funcs |= IPA_SETADAPTERPARMS; 3001a134884aSStefan Raspl card->options.ipa6.supported_funcs |= IPA_SETADAPTERPARMS; 300231c92732SJulian Wiedmann return 0; 3003a134884aSStefan Raspl default: 3004a134884aSStefan Raspl if (cmd->hdr.return_code) { 3005e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(1, "IPA_CMD_QIPASSIST on device %x: Unhandled rc=%#x\n", 3006e19e5be8SJulian Wiedmann CARD_DEVID(card), 3007a134884aSStefan Raspl cmd->hdr.return_code); 3008a134884aSStefan Raspl return 0; 3009a134884aSStefan Raspl } 3010a134884aSStefan Raspl } 3011a134884aSStefan Raspl 30121da74b1cSFrank Blaschka if (cmd->hdr.prot_version == QETH_PROT_IPV4) { 30131da74b1cSFrank Blaschka card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported; 30141da74b1cSFrank Blaschka card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled; 3015a134884aSStefan Raspl } else if (cmd->hdr.prot_version == QETH_PROT_IPV6) { 30161da74b1cSFrank Blaschka card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported; 30171da74b1cSFrank Blaschka card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled; 3018a134884aSStefan Raspl } else 3019e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(1, "IPA_CMD_QIPASSIST on device %x: Flawed LIC detected\n", 3020e19e5be8SJulian Wiedmann CARD_DEVID(card)); 30211da74b1cSFrank Blaschka return 0; 30221da74b1cSFrank Blaschka } 30231da74b1cSFrank Blaschka 302409960b3aSJulian Wiedmann static int qeth_query_ipassists(struct qeth_card *card, 302509960b3aSJulian Wiedmann enum qeth_prot_versions prot) 30261da74b1cSFrank Blaschka { 30271da74b1cSFrank Blaschka int rc; 30281da74b1cSFrank Blaschka struct qeth_cmd_buffer *iob; 30291da74b1cSFrank Blaschka 30301da74b1cSFrank Blaschka QETH_DBF_TEXT_(SETUP, 2, "qipassi%i", prot); 30311da74b1cSFrank Blaschka iob = qeth_get_ipacmd_buffer(card, IPA_CMD_QIPASSIST, prot); 30321aec42bcSThomas Richter if (!iob) 30331aec42bcSThomas Richter return -ENOMEM; 30341da74b1cSFrank Blaschka rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL); 30351da74b1cSFrank Blaschka return rc; 30361da74b1cSFrank Blaschka } 30371da74b1cSFrank Blaschka 303845cbb2e4SStefan Raspl static int qeth_query_switch_attributes_cb(struct qeth_card *card, 303945cbb2e4SStefan Raspl struct qeth_reply *reply, unsigned long data) 304045cbb2e4SStefan Raspl { 3041686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 304245cbb2e4SStefan Raspl struct qeth_query_switch_attributes *attrs; 3043686c97eeSJulian Wiedmann struct qeth_switch_info *sw_info; 304445cbb2e4SStefan Raspl 304545cbb2e4SStefan Raspl QETH_CARD_TEXT(card, 2, "qswiatcb"); 3046686c97eeSJulian Wiedmann if (qeth_setadpparms_inspect_rc(cmd)) 3047686c97eeSJulian Wiedmann return 0; 3048686c97eeSJulian Wiedmann 304945cbb2e4SStefan Raspl sw_info = (struct qeth_switch_info *)reply->param; 305045cbb2e4SStefan Raspl attrs = &cmd->data.setadapterparms.data.query_switch_attributes; 305145cbb2e4SStefan Raspl sw_info->capabilities = attrs->capabilities; 305245cbb2e4SStefan Raspl sw_info->settings = attrs->settings; 305345cbb2e4SStefan Raspl QETH_CARD_TEXT_(card, 2, "%04x%04x", sw_info->capabilities, 305445cbb2e4SStefan Raspl sw_info->settings); 305545cbb2e4SStefan Raspl return 0; 305645cbb2e4SStefan Raspl } 305745cbb2e4SStefan Raspl 305845cbb2e4SStefan Raspl int qeth_query_switch_attributes(struct qeth_card *card, 305945cbb2e4SStefan Raspl struct qeth_switch_info *sw_info) 306045cbb2e4SStefan Raspl { 306145cbb2e4SStefan Raspl struct qeth_cmd_buffer *iob; 306245cbb2e4SStefan Raspl 306345cbb2e4SStefan Raspl QETH_CARD_TEXT(card, 2, "qswiattr"); 306445cbb2e4SStefan Raspl if (!qeth_adp_supported(card, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES)) 306545cbb2e4SStefan Raspl return -EOPNOTSUPP; 306645cbb2e4SStefan Raspl if (!netif_carrier_ok(card->dev)) 306745cbb2e4SStefan Raspl return -ENOMEDIUM; 306845cbb2e4SStefan Raspl iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES, 306945cbb2e4SStefan Raspl sizeof(struct qeth_ipacmd_setadpparms_hdr)); 30701aec42bcSThomas Richter if (!iob) 30711aec42bcSThomas Richter return -ENOMEM; 307245cbb2e4SStefan Raspl return qeth_send_ipa_cmd(card, iob, 307345cbb2e4SStefan Raspl qeth_query_switch_attributes_cb, sw_info); 307445cbb2e4SStefan Raspl } 307545cbb2e4SStefan Raspl 30761da74b1cSFrank Blaschka static int qeth_query_setdiagass_cb(struct qeth_card *card, 30771da74b1cSFrank Blaschka struct qeth_reply *reply, unsigned long data) 30781da74b1cSFrank Blaschka { 30791da74b1cSFrank Blaschka struct qeth_ipa_cmd *cmd; 30801da74b1cSFrank Blaschka __u16 rc; 30811da74b1cSFrank Blaschka 30821da74b1cSFrank Blaschka cmd = (struct qeth_ipa_cmd *)data; 30831da74b1cSFrank Blaschka rc = cmd->hdr.return_code; 30841da74b1cSFrank Blaschka if (rc) 30851da74b1cSFrank Blaschka QETH_CARD_TEXT_(card, 2, "diagq:%x", rc); 30861da74b1cSFrank Blaschka else 30871da74b1cSFrank Blaschka card->info.diagass_support = cmd->data.diagass.ext; 30881da74b1cSFrank Blaschka return 0; 30891da74b1cSFrank Blaschka } 30901da74b1cSFrank Blaschka 30911da74b1cSFrank Blaschka static int qeth_query_setdiagass(struct qeth_card *card) 30921da74b1cSFrank Blaschka { 30931da74b1cSFrank Blaschka struct qeth_cmd_buffer *iob; 30941da74b1cSFrank Blaschka struct qeth_ipa_cmd *cmd; 30951da74b1cSFrank Blaschka 30961da74b1cSFrank Blaschka QETH_DBF_TEXT(SETUP, 2, "qdiagass"); 30971da74b1cSFrank Blaschka iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0); 30981aec42bcSThomas Richter if (!iob) 30991aec42bcSThomas Richter return -ENOMEM; 3100ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 31011da74b1cSFrank Blaschka cmd->data.diagass.subcmd_len = 16; 31021da74b1cSFrank Blaschka cmd->data.diagass.subcmd = QETH_DIAGS_CMD_QUERY; 31031da74b1cSFrank Blaschka return qeth_send_ipa_cmd(card, iob, qeth_query_setdiagass_cb, NULL); 31041da74b1cSFrank Blaschka } 31051da74b1cSFrank Blaschka 31061da74b1cSFrank Blaschka static void qeth_get_trap_id(struct qeth_card *card, struct qeth_trap_id *tid) 31071da74b1cSFrank Blaschka { 31081da74b1cSFrank Blaschka unsigned long info = get_zeroed_page(GFP_KERNEL); 31091da74b1cSFrank Blaschka struct sysinfo_2_2_2 *info222 = (struct sysinfo_2_2_2 *)info; 31101da74b1cSFrank Blaschka struct sysinfo_3_2_2 *info322 = (struct sysinfo_3_2_2 *)info; 31111da74b1cSFrank Blaschka struct ccw_dev_id ccwid; 3112caf757c6SHeiko Carstens int level; 31131da74b1cSFrank Blaschka 31141da74b1cSFrank Blaschka tid->chpid = card->info.chpid; 31151da74b1cSFrank Blaschka ccw_device_get_id(CARD_RDEV(card), &ccwid); 31161da74b1cSFrank Blaschka tid->ssid = ccwid.ssid; 31171da74b1cSFrank Blaschka tid->devno = ccwid.devno; 31181da74b1cSFrank Blaschka if (!info) 31191da74b1cSFrank Blaschka return; 3120caf757c6SHeiko Carstens level = stsi(NULL, 0, 0, 0); 3121caf757c6SHeiko Carstens if ((level >= 2) && (stsi(info222, 2, 2, 2) == 0)) 31221da74b1cSFrank Blaschka tid->lparnr = info222->lpar_number; 3123caf757c6SHeiko Carstens if ((level >= 3) && (stsi(info322, 3, 2, 2) == 0)) { 31241da74b1cSFrank Blaschka EBCASC(info322->vm[0].name, sizeof(info322->vm[0].name)); 31251da74b1cSFrank Blaschka memcpy(tid->vmname, info322->vm[0].name, sizeof(tid->vmname)); 31261da74b1cSFrank Blaschka } 31271da74b1cSFrank Blaschka free_page(info); 31281da74b1cSFrank Blaschka return; 31291da74b1cSFrank Blaschka } 31301da74b1cSFrank Blaschka 31311da74b1cSFrank Blaschka static int qeth_hw_trap_cb(struct qeth_card *card, 31321da74b1cSFrank Blaschka struct qeth_reply *reply, unsigned long data) 31331da74b1cSFrank Blaschka { 31341da74b1cSFrank Blaschka struct qeth_ipa_cmd *cmd; 31351da74b1cSFrank Blaschka __u16 rc; 31361da74b1cSFrank Blaschka 31371da74b1cSFrank Blaschka cmd = (struct qeth_ipa_cmd *)data; 31381da74b1cSFrank Blaschka rc = cmd->hdr.return_code; 31391da74b1cSFrank Blaschka if (rc) 31401da74b1cSFrank Blaschka QETH_CARD_TEXT_(card, 2, "trapc:%x", rc); 31411da74b1cSFrank Blaschka return 0; 31421da74b1cSFrank Blaschka } 31431da74b1cSFrank Blaschka 31441da74b1cSFrank Blaschka int qeth_hw_trap(struct qeth_card *card, enum qeth_diags_trap_action action) 31451da74b1cSFrank Blaschka { 31461da74b1cSFrank Blaschka struct qeth_cmd_buffer *iob; 31471da74b1cSFrank Blaschka struct qeth_ipa_cmd *cmd; 31481da74b1cSFrank Blaschka 31491da74b1cSFrank Blaschka QETH_DBF_TEXT(SETUP, 2, "diagtrap"); 31501da74b1cSFrank Blaschka iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0); 31511aec42bcSThomas Richter if (!iob) 31521aec42bcSThomas Richter return -ENOMEM; 3153ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 31541da74b1cSFrank Blaschka cmd->data.diagass.subcmd_len = 80; 31551da74b1cSFrank Blaschka cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRAP; 31561da74b1cSFrank Blaschka cmd->data.diagass.type = 1; 31571da74b1cSFrank Blaschka cmd->data.diagass.action = action; 31581da74b1cSFrank Blaschka switch (action) { 31591da74b1cSFrank Blaschka case QETH_DIAGS_TRAP_ARM: 31601da74b1cSFrank Blaschka cmd->data.diagass.options = 0x0003; 31611da74b1cSFrank Blaschka cmd->data.diagass.ext = 0x00010000 + 31621da74b1cSFrank Blaschka sizeof(struct qeth_trap_id); 31631da74b1cSFrank Blaschka qeth_get_trap_id(card, 31641da74b1cSFrank Blaschka (struct qeth_trap_id *)cmd->data.diagass.cdata); 31651da74b1cSFrank Blaschka break; 31661da74b1cSFrank Blaschka case QETH_DIAGS_TRAP_DISARM: 31671da74b1cSFrank Blaschka cmd->data.diagass.options = 0x0001; 31681da74b1cSFrank Blaschka break; 31691da74b1cSFrank Blaschka case QETH_DIAGS_TRAP_CAPTURE: 31701da74b1cSFrank Blaschka break; 31711da74b1cSFrank Blaschka } 31721da74b1cSFrank Blaschka return qeth_send_ipa_cmd(card, iob, qeth_hw_trap_cb, NULL); 31731da74b1cSFrank Blaschka } 31741da74b1cSFrank Blaschka EXPORT_SYMBOL_GPL(qeth_hw_trap); 31751da74b1cSFrank Blaschka 3176d73ef324SJulian Wiedmann static int qeth_check_qdio_errors(struct qeth_card *card, 3177d73ef324SJulian Wiedmann struct qdio_buffer *buf, 3178d73ef324SJulian Wiedmann unsigned int qdio_error, 3179d73ef324SJulian Wiedmann const char *dbftext) 31804a71df50SFrank Blaschka { 3181779e6e1cSJan Glauber if (qdio_error) { 3182847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, dbftext); 318338593d01SCarsten Otte QETH_CARD_TEXT_(card, 2, " F15=%02X", 31843ec90878SJan Glauber buf->element[15].sflags); 318538593d01SCarsten Otte QETH_CARD_TEXT_(card, 2, " F14=%02X", 31863ec90878SJan Glauber buf->element[14].sflags); 318738593d01SCarsten Otte QETH_CARD_TEXT_(card, 2, " qerr=%X", qdio_error); 31883ec90878SJan Glauber if ((buf->element[15].sflags) == 0x12) { 318976b11f8eSUrsula Braun card->stats.rx_dropped++; 319076b11f8eSUrsula Braun return 0; 319176b11f8eSUrsula Braun } else 31924a71df50SFrank Blaschka return 1; 31934a71df50SFrank Blaschka } 31944a71df50SFrank Blaschka return 0; 31954a71df50SFrank Blaschka } 31964a71df50SFrank Blaschka 3197d73ef324SJulian Wiedmann static void qeth_queue_input_buffer(struct qeth_card *card, int index) 31984a71df50SFrank Blaschka { 31994a71df50SFrank Blaschka struct qeth_qdio_q *queue = card->qdio.in_q; 3200b3332930SFrank Blaschka struct list_head *lh; 32014a71df50SFrank Blaschka int count; 32024a71df50SFrank Blaschka int i; 32034a71df50SFrank Blaschka int rc; 32044a71df50SFrank Blaschka int newcount = 0; 32054a71df50SFrank Blaschka 32064a71df50SFrank Blaschka count = (index < queue->next_buf_to_init)? 32074a71df50SFrank Blaschka card->qdio.in_buf_pool.buf_count - 32084a71df50SFrank Blaschka (queue->next_buf_to_init - index) : 32094a71df50SFrank Blaschka card->qdio.in_buf_pool.buf_count - 32104a71df50SFrank Blaschka (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index); 32114a71df50SFrank Blaschka /* only requeue at a certain threshold to avoid SIGAs */ 32124a71df50SFrank Blaschka if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) { 32134a71df50SFrank Blaschka for (i = queue->next_buf_to_init; 32144a71df50SFrank Blaschka i < queue->next_buf_to_init + count; ++i) { 32154a71df50SFrank Blaschka if (qeth_init_input_buffer(card, 32164a71df50SFrank Blaschka &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) { 32174a71df50SFrank Blaschka break; 32184a71df50SFrank Blaschka } else { 32194a71df50SFrank Blaschka newcount++; 32204a71df50SFrank Blaschka } 32214a71df50SFrank Blaschka } 32224a71df50SFrank Blaschka 32234a71df50SFrank Blaschka if (newcount < count) { 32244a71df50SFrank Blaschka /* we are in memory shortage so we switch back to 32254a71df50SFrank Blaschka traditional skb allocation and drop packages */ 32264a71df50SFrank Blaschka atomic_set(&card->force_alloc_skb, 3); 32274a71df50SFrank Blaschka count = newcount; 32284a71df50SFrank Blaschka } else { 32294a71df50SFrank Blaschka atomic_add_unless(&card->force_alloc_skb, -1, 0); 32304a71df50SFrank Blaschka } 32314a71df50SFrank Blaschka 3232b3332930SFrank Blaschka if (!count) { 3233b3332930SFrank Blaschka i = 0; 3234b3332930SFrank Blaschka list_for_each(lh, &card->qdio.in_buf_pool.entry_list) 3235b3332930SFrank Blaschka i++; 3236b3332930SFrank Blaschka if (i == card->qdio.in_buf_pool.buf_count) { 3237b3332930SFrank Blaschka QETH_CARD_TEXT(card, 2, "qsarbw"); 3238b3332930SFrank Blaschka card->reclaim_index = index; 3239b3332930SFrank Blaschka schedule_delayed_work( 3240b3332930SFrank Blaschka &card->buffer_reclaim_work, 3241b3332930SFrank Blaschka QETH_RECLAIM_WORK_TIME); 3242b3332930SFrank Blaschka } 3243b3332930SFrank Blaschka return; 3244b3332930SFrank Blaschka } 3245b3332930SFrank Blaschka 32464a71df50SFrank Blaschka /* 32474a71df50SFrank Blaschka * according to old code it should be avoided to requeue all 32484a71df50SFrank Blaschka * 128 buffers in order to benefit from PCI avoidance. 32494a71df50SFrank Blaschka * this function keeps at least one buffer (the buffer at 32504a71df50SFrank Blaschka * 'index') un-requeued -> this buffer is the first buffer that 32514a71df50SFrank Blaschka * will be requeued the next time 32524a71df50SFrank Blaschka */ 32534a71df50SFrank Blaschka if (card->options.performance_stats) { 32544a71df50SFrank Blaschka card->perf_stats.inbound_do_qdio_cnt++; 32554a71df50SFrank Blaschka card->perf_stats.inbound_do_qdio_start_time = 32564a71df50SFrank Blaschka qeth_get_micros(); 32574a71df50SFrank Blaschka } 3258779e6e1cSJan Glauber rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 3259779e6e1cSJan Glauber queue->next_buf_to_init, count); 32604a71df50SFrank Blaschka if (card->options.performance_stats) 32614a71df50SFrank Blaschka card->perf_stats.inbound_do_qdio_time += 32624a71df50SFrank Blaschka qeth_get_micros() - 32634a71df50SFrank Blaschka card->perf_stats.inbound_do_qdio_start_time; 32644a71df50SFrank Blaschka if (rc) { 3265847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "qinberr"); 32664a71df50SFrank Blaschka } 32674a71df50SFrank Blaschka queue->next_buf_to_init = (queue->next_buf_to_init + count) % 32684a71df50SFrank Blaschka QDIO_MAX_BUFFERS_PER_Q; 32694a71df50SFrank Blaschka } 32704a71df50SFrank Blaschka } 3271d73ef324SJulian Wiedmann 3272d73ef324SJulian Wiedmann static void qeth_buffer_reclaim_work(struct work_struct *work) 3273d73ef324SJulian Wiedmann { 3274d73ef324SJulian Wiedmann struct qeth_card *card = container_of(work, struct qeth_card, 3275d73ef324SJulian Wiedmann buffer_reclaim_work.work); 3276d73ef324SJulian Wiedmann 3277d73ef324SJulian Wiedmann QETH_CARD_TEXT_(card, 2, "brw:%x", card->reclaim_index); 3278d73ef324SJulian Wiedmann qeth_queue_input_buffer(card, card->reclaim_index); 3279d73ef324SJulian Wiedmann } 32804a71df50SFrank Blaschka 3281d7a39937SJulian Wiedmann static void qeth_handle_send_error(struct qeth_card *card, 3282779e6e1cSJan Glauber struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err) 32834a71df50SFrank Blaschka { 32843ec90878SJan Glauber int sbalf15 = buffer->buffer->element[15].sflags; 32854a71df50SFrank Blaschka 3286847a50fdSCarsten Otte QETH_CARD_TEXT(card, 6, "hdsnderr"); 328758490f18SKlaus-Dieter Wacker if (card->info.type == QETH_CARD_TYPE_IQD) { 328858490f18SKlaus-Dieter Wacker if (sbalf15 == 0) { 328958490f18SKlaus-Dieter Wacker qdio_err = 0; 329058490f18SKlaus-Dieter Wacker } else { 329158490f18SKlaus-Dieter Wacker qdio_err = 1; 329258490f18SKlaus-Dieter Wacker } 329358490f18SKlaus-Dieter Wacker } 329476b11f8eSUrsula Braun qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qouterr"); 3295d303b6fdSJan Glauber 3296d303b6fdSJan Glauber if (!qdio_err) 3297d7a39937SJulian Wiedmann return; 3298d303b6fdSJan Glauber 3299d303b6fdSJan Glauber if ((sbalf15 >= 15) && (sbalf15 <= 31)) 3300d7a39937SJulian Wiedmann return; 3301d303b6fdSJan Glauber 3302847a50fdSCarsten Otte QETH_CARD_TEXT(card, 1, "lnkfail"); 3303847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 1, "%04x %02x", 33044a71df50SFrank Blaschka (u16)qdio_err, (u8)sbalf15); 33054a71df50SFrank Blaschka } 33064a71df50SFrank Blaschka 3307664e42acSJulian Wiedmann /** 3308664e42acSJulian Wiedmann * qeth_prep_flush_pack_buffer - Prepares flushing of a packing buffer. 3309664e42acSJulian Wiedmann * @queue: queue to check for packing buffer 3310664e42acSJulian Wiedmann * 3311664e42acSJulian Wiedmann * Returns number of buffers that were prepared for flush. 3312664e42acSJulian Wiedmann */ 3313664e42acSJulian Wiedmann static int qeth_prep_flush_pack_buffer(struct qeth_qdio_out_q *queue) 3314664e42acSJulian Wiedmann { 3315664e42acSJulian Wiedmann struct qeth_qdio_out_buffer *buffer; 3316664e42acSJulian Wiedmann 3317664e42acSJulian Wiedmann buffer = queue->bufs[queue->next_buf_to_fill]; 3318664e42acSJulian Wiedmann if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) && 3319664e42acSJulian Wiedmann (buffer->next_element_to_fill > 0)) { 3320664e42acSJulian Wiedmann /* it's a packing buffer */ 3321664e42acSJulian Wiedmann atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); 3322664e42acSJulian Wiedmann queue->next_buf_to_fill = 3323664e42acSJulian Wiedmann (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q; 3324664e42acSJulian Wiedmann return 1; 3325664e42acSJulian Wiedmann } 3326664e42acSJulian Wiedmann return 0; 3327664e42acSJulian Wiedmann } 3328664e42acSJulian Wiedmann 33294a71df50SFrank Blaschka /* 33304a71df50SFrank Blaschka * Switched to packing state if the number of used buffers on a queue 33314a71df50SFrank Blaschka * reaches a certain limit. 33324a71df50SFrank Blaschka */ 33334a71df50SFrank Blaschka static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue) 33344a71df50SFrank Blaschka { 33354a71df50SFrank Blaschka if (!queue->do_pack) { 33364a71df50SFrank Blaschka if (atomic_read(&queue->used_buffers) 33374a71df50SFrank Blaschka >= QETH_HIGH_WATERMARK_PACK){ 33384a71df50SFrank Blaschka /* switch non-PACKING -> PACKING */ 3339847a50fdSCarsten Otte QETH_CARD_TEXT(queue->card, 6, "np->pack"); 33404a71df50SFrank Blaschka if (queue->card->options.performance_stats) 33414a71df50SFrank Blaschka queue->card->perf_stats.sc_dp_p++; 33424a71df50SFrank Blaschka queue->do_pack = 1; 33434a71df50SFrank Blaschka } 33444a71df50SFrank Blaschka } 33454a71df50SFrank Blaschka } 33464a71df50SFrank Blaschka 33474a71df50SFrank Blaschka /* 33484a71df50SFrank Blaschka * Switches from packing to non-packing mode. If there is a packing 33494a71df50SFrank Blaschka * buffer on the queue this buffer will be prepared to be flushed. 33504a71df50SFrank Blaschka * In that case 1 is returned to inform the caller. If no buffer 33514a71df50SFrank Blaschka * has to be flushed, zero is returned. 33524a71df50SFrank Blaschka */ 33534a71df50SFrank Blaschka static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue) 33544a71df50SFrank Blaschka { 33554a71df50SFrank Blaschka if (queue->do_pack) { 33564a71df50SFrank Blaschka if (atomic_read(&queue->used_buffers) 33574a71df50SFrank Blaschka <= QETH_LOW_WATERMARK_PACK) { 33584a71df50SFrank Blaschka /* switch PACKING -> non-PACKING */ 3359847a50fdSCarsten Otte QETH_CARD_TEXT(queue->card, 6, "pack->np"); 33604a71df50SFrank Blaschka if (queue->card->options.performance_stats) 33614a71df50SFrank Blaschka queue->card->perf_stats.sc_p_dp++; 33624a71df50SFrank Blaschka queue->do_pack = 0; 3363664e42acSJulian Wiedmann return qeth_prep_flush_pack_buffer(queue); 33644a71df50SFrank Blaschka } 33654a71df50SFrank Blaschka } 33664a71df50SFrank Blaschka return 0; 33674a71df50SFrank Blaschka } 33684a71df50SFrank Blaschka 3369779e6e1cSJan Glauber static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index, 3370779e6e1cSJan Glauber int count) 33714a71df50SFrank Blaschka { 33724a71df50SFrank Blaschka struct qeth_qdio_out_buffer *buf; 33734a71df50SFrank Blaschka int rc; 33744a71df50SFrank Blaschka int i; 33754a71df50SFrank Blaschka unsigned int qdio_flags; 33764a71df50SFrank Blaschka 33774a71df50SFrank Blaschka for (i = index; i < index + count; ++i) { 33780da9581dSEinar Lueck int bidx = i % QDIO_MAX_BUFFERS_PER_Q; 33790da9581dSEinar Lueck buf = queue->bufs[bidx]; 33803ec90878SJan Glauber buf->buffer->element[buf->next_element_to_fill - 1].eflags |= 33813ec90878SJan Glauber SBAL_EFLAGS_LAST_ENTRY; 33824a71df50SFrank Blaschka 33830da9581dSEinar Lueck if (queue->bufstates) 33840da9581dSEinar Lueck queue->bufstates[bidx].user = buf; 33850da9581dSEinar Lueck 33864a71df50SFrank Blaschka if (queue->card->info.type == QETH_CARD_TYPE_IQD) 33874a71df50SFrank Blaschka continue; 33884a71df50SFrank Blaschka 33894a71df50SFrank Blaschka if (!queue->do_pack) { 33904a71df50SFrank Blaschka if ((atomic_read(&queue->used_buffers) >= 33914a71df50SFrank Blaschka (QETH_HIGH_WATERMARK_PACK - 33924a71df50SFrank Blaschka QETH_WATERMARK_PACK_FUZZ)) && 33934a71df50SFrank Blaschka !atomic_read(&queue->set_pci_flags_count)) { 33944a71df50SFrank Blaschka /* it's likely that we'll go to packing 33954a71df50SFrank Blaschka * mode soon */ 33964a71df50SFrank Blaschka atomic_inc(&queue->set_pci_flags_count); 33973ec90878SJan Glauber buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ; 33984a71df50SFrank Blaschka } 33994a71df50SFrank Blaschka } else { 34004a71df50SFrank Blaschka if (!atomic_read(&queue->set_pci_flags_count)) { 34014a71df50SFrank Blaschka /* 34024a71df50SFrank Blaschka * there's no outstanding PCI any more, so we 34034a71df50SFrank Blaschka * have to request a PCI to be sure the the PCI 34044a71df50SFrank Blaschka * will wake at some time in the future then we 34054a71df50SFrank Blaschka * can flush packed buffers that might still be 34064a71df50SFrank Blaschka * hanging around, which can happen if no 34074a71df50SFrank Blaschka * further send was requested by the stack 34084a71df50SFrank Blaschka */ 34094a71df50SFrank Blaschka atomic_inc(&queue->set_pci_flags_count); 34103ec90878SJan Glauber buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ; 34114a71df50SFrank Blaschka } 34124a71df50SFrank Blaschka } 34134a71df50SFrank Blaschka } 34144a71df50SFrank Blaschka 34153e66bab3SFlorian Westphal netif_trans_update(queue->card->dev); 34164a71df50SFrank Blaschka if (queue->card->options.performance_stats) { 34174a71df50SFrank Blaschka queue->card->perf_stats.outbound_do_qdio_cnt++; 34184a71df50SFrank Blaschka queue->card->perf_stats.outbound_do_qdio_start_time = 34194a71df50SFrank Blaschka qeth_get_micros(); 34204a71df50SFrank Blaschka } 34214a71df50SFrank Blaschka qdio_flags = QDIO_FLAG_SYNC_OUTPUT; 34224a71df50SFrank Blaschka if (atomic_read(&queue->set_pci_flags_count)) 34234a71df50SFrank Blaschka qdio_flags |= QDIO_FLAG_PCI_OUT; 3424a702349aSJulian Wiedmann atomic_add(count, &queue->used_buffers); 3425a702349aSJulian Wiedmann 34264a71df50SFrank Blaschka rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags, 3427779e6e1cSJan Glauber queue->queue_no, index, count); 34284a71df50SFrank Blaschka if (queue->card->options.performance_stats) 34294a71df50SFrank Blaschka queue->card->perf_stats.outbound_do_qdio_time += 34304a71df50SFrank Blaschka qeth_get_micros() - 34314a71df50SFrank Blaschka queue->card->perf_stats.outbound_do_qdio_start_time; 34324a71df50SFrank Blaschka if (rc) { 3433d303b6fdSJan Glauber queue->card->stats.tx_errors += count; 3434d303b6fdSJan Glauber /* ignore temporary SIGA errors without busy condition */ 34351549d13fSJan Glauber if (rc == -ENOBUFS) 3436d303b6fdSJan Glauber return; 3437847a50fdSCarsten Otte QETH_CARD_TEXT(queue->card, 2, "flushbuf"); 34380da9581dSEinar Lueck QETH_CARD_TEXT_(queue->card, 2, " q%d", queue->queue_no); 34390da9581dSEinar Lueck QETH_CARD_TEXT_(queue->card, 2, " idx%d", index); 34400da9581dSEinar Lueck QETH_CARD_TEXT_(queue->card, 2, " c%d", count); 3441847a50fdSCarsten Otte QETH_CARD_TEXT_(queue->card, 2, " err%d", rc); 3442d303b6fdSJan Glauber 34434a71df50SFrank Blaschka /* this must not happen under normal circumstances. if it 34444a71df50SFrank Blaschka * happens something is really wrong -> recover */ 34454a71df50SFrank Blaschka qeth_schedule_recovery(queue->card); 34464a71df50SFrank Blaschka return; 34474a71df50SFrank Blaschka } 34484a71df50SFrank Blaschka if (queue->card->options.performance_stats) 34494a71df50SFrank Blaschka queue->card->perf_stats.bufs_sent += count; 34504a71df50SFrank Blaschka } 34514a71df50SFrank Blaschka 34524a71df50SFrank Blaschka static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue) 34534a71df50SFrank Blaschka { 34544a71df50SFrank Blaschka int index; 34554a71df50SFrank Blaschka int flush_cnt = 0; 34564a71df50SFrank Blaschka int q_was_packing = 0; 34574a71df50SFrank Blaschka 34584a71df50SFrank Blaschka /* 34594a71df50SFrank Blaschka * check if weed have to switch to non-packing mode or if 34604a71df50SFrank Blaschka * we have to get a pci flag out on the queue 34614a71df50SFrank Blaschka */ 34624a71df50SFrank Blaschka if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) || 34634a71df50SFrank Blaschka !atomic_read(&queue->set_pci_flags_count)) { 34644a71df50SFrank Blaschka if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) == 34654a71df50SFrank Blaschka QETH_OUT_Q_UNLOCKED) { 34664a71df50SFrank Blaschka /* 34674a71df50SFrank Blaschka * If we get in here, there was no action in 34684a71df50SFrank Blaschka * do_send_packet. So, we check if there is a 34694a71df50SFrank Blaschka * packing buffer to be flushed here. 34704a71df50SFrank Blaschka */ 34714a71df50SFrank Blaschka netif_stop_queue(queue->card->dev); 34724a71df50SFrank Blaschka index = queue->next_buf_to_fill; 34734a71df50SFrank Blaschka q_was_packing = queue->do_pack; 34744a71df50SFrank Blaschka /* queue->do_pack may change */ 34754a71df50SFrank Blaschka barrier(); 34764a71df50SFrank Blaschka flush_cnt += qeth_switch_to_nonpacking_if_needed(queue); 34774a71df50SFrank Blaschka if (!flush_cnt && 34784a71df50SFrank Blaschka !atomic_read(&queue->set_pci_flags_count)) 3479664e42acSJulian Wiedmann flush_cnt += qeth_prep_flush_pack_buffer(queue); 34804a71df50SFrank Blaschka if (queue->card->options.performance_stats && 34814a71df50SFrank Blaschka q_was_packing) 34824a71df50SFrank Blaschka queue->card->perf_stats.bufs_sent_pack += 34834a71df50SFrank Blaschka flush_cnt; 34844a71df50SFrank Blaschka if (flush_cnt) 3485779e6e1cSJan Glauber qeth_flush_buffers(queue, index, flush_cnt); 34864a71df50SFrank Blaschka atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); 34874a71df50SFrank Blaschka } 34884a71df50SFrank Blaschka } 34894a71df50SFrank Blaschka } 34904a71df50SFrank Blaschka 34917bcd64ebSJulian Wiedmann static void qeth_qdio_start_poll(struct ccw_device *ccwdev, int queue, 3492a1c3ed4cSFrank Blaschka unsigned long card_ptr) 3493a1c3ed4cSFrank Blaschka { 3494a1c3ed4cSFrank Blaschka struct qeth_card *card = (struct qeth_card *)card_ptr; 3495a1c3ed4cSFrank Blaschka 3496d3d1b205SJulian Wiedmann if (card->dev->flags & IFF_UP) 3497a1c3ed4cSFrank Blaschka napi_schedule(&card->napi); 3498a1c3ed4cSFrank Blaschka } 3499a1c3ed4cSFrank Blaschka 35000da9581dSEinar Lueck int qeth_configure_cq(struct qeth_card *card, enum qeth_cq cq) 35010da9581dSEinar Lueck { 35020da9581dSEinar Lueck int rc; 35030da9581dSEinar Lueck 35040da9581dSEinar Lueck if (card->options.cq == QETH_CQ_NOTAVAILABLE) { 35050da9581dSEinar Lueck rc = -1; 35060da9581dSEinar Lueck goto out; 35070da9581dSEinar Lueck } else { 35080da9581dSEinar Lueck if (card->options.cq == cq) { 35090da9581dSEinar Lueck rc = 0; 35100da9581dSEinar Lueck goto out; 35110da9581dSEinar Lueck } 35120da9581dSEinar Lueck 35130da9581dSEinar Lueck if (card->state != CARD_STATE_DOWN && 35140da9581dSEinar Lueck card->state != CARD_STATE_RECOVER) { 35150da9581dSEinar Lueck rc = -1; 35160da9581dSEinar Lueck goto out; 35170da9581dSEinar Lueck } 35180da9581dSEinar Lueck 35190da9581dSEinar Lueck qeth_free_qdio_buffers(card); 35200da9581dSEinar Lueck card->options.cq = cq; 35210da9581dSEinar Lueck rc = 0; 35220da9581dSEinar Lueck } 35230da9581dSEinar Lueck out: 35240da9581dSEinar Lueck return rc; 35250da9581dSEinar Lueck 35260da9581dSEinar Lueck } 35270da9581dSEinar Lueck EXPORT_SYMBOL_GPL(qeth_configure_cq); 35280da9581dSEinar Lueck 35293b346c18SJulian Wiedmann static void qeth_qdio_cq_handler(struct qeth_card *card, unsigned int qdio_err, 35303b346c18SJulian Wiedmann unsigned int queue, int first_element, 35313b346c18SJulian Wiedmann int count) 35323b346c18SJulian Wiedmann { 35330da9581dSEinar Lueck struct qeth_qdio_q *cq = card->qdio.c_q; 35340da9581dSEinar Lueck int i; 35350da9581dSEinar Lueck int rc; 35360da9581dSEinar Lueck 35370da9581dSEinar Lueck if (!qeth_is_cq(card, queue)) 35380da9581dSEinar Lueck goto out; 35390da9581dSEinar Lueck 35400da9581dSEinar Lueck QETH_CARD_TEXT_(card, 5, "qcqhe%d", first_element); 35410da9581dSEinar Lueck QETH_CARD_TEXT_(card, 5, "qcqhc%d", count); 35420da9581dSEinar Lueck QETH_CARD_TEXT_(card, 5, "qcqherr%d", qdio_err); 35430da9581dSEinar Lueck 35440da9581dSEinar Lueck if (qdio_err) { 35450da9581dSEinar Lueck netif_stop_queue(card->dev); 35460da9581dSEinar Lueck qeth_schedule_recovery(card); 35470da9581dSEinar Lueck goto out; 35480da9581dSEinar Lueck } 35490da9581dSEinar Lueck 35500da9581dSEinar Lueck if (card->options.performance_stats) { 35510da9581dSEinar Lueck card->perf_stats.cq_cnt++; 35520da9581dSEinar Lueck card->perf_stats.cq_start_time = qeth_get_micros(); 35530da9581dSEinar Lueck } 35540da9581dSEinar Lueck 35550da9581dSEinar Lueck for (i = first_element; i < first_element + count; ++i) { 35560da9581dSEinar Lueck int bidx = i % QDIO_MAX_BUFFERS_PER_Q; 35576d284bdeSSebastian Ott struct qdio_buffer *buffer = cq->qdio_bufs[bidx]; 35583b346c18SJulian Wiedmann int e = 0; 35590da9581dSEinar Lueck 3560903e4853SUrsula Braun while ((e < QDIO_MAX_ELEMENTS_PER_BUFFER) && 3561903e4853SUrsula Braun buffer->element[e].addr) { 35620da9581dSEinar Lueck unsigned long phys_aob_addr; 35630da9581dSEinar Lueck 35640da9581dSEinar Lueck phys_aob_addr = (unsigned long) buffer->element[e].addr; 35650da9581dSEinar Lueck qeth_qdio_handle_aob(card, phys_aob_addr); 35660da9581dSEinar Lueck ++e; 35670da9581dSEinar Lueck } 35683b346c18SJulian Wiedmann qeth_scrub_qdio_buffer(buffer, QDIO_MAX_ELEMENTS_PER_BUFFER); 35690da9581dSEinar Lueck } 35700da9581dSEinar Lueck rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, queue, 35710da9581dSEinar Lueck card->qdio.c_q->next_buf_to_init, 35720da9581dSEinar Lueck count); 35730da9581dSEinar Lueck if (rc) { 35740da9581dSEinar Lueck dev_warn(&card->gdev->dev, 35750da9581dSEinar Lueck "QDIO reported an error, rc=%i\n", rc); 35760da9581dSEinar Lueck QETH_CARD_TEXT(card, 2, "qcqherr"); 35770da9581dSEinar Lueck } 35780da9581dSEinar Lueck card->qdio.c_q->next_buf_to_init = (card->qdio.c_q->next_buf_to_init 35790da9581dSEinar Lueck + count) % QDIO_MAX_BUFFERS_PER_Q; 35800da9581dSEinar Lueck 35810da9581dSEinar Lueck if (card->options.performance_stats) { 35820da9581dSEinar Lueck int delta_t = qeth_get_micros(); 35830da9581dSEinar Lueck delta_t -= card->perf_stats.cq_start_time; 35840da9581dSEinar Lueck card->perf_stats.cq_time += delta_t; 35850da9581dSEinar Lueck } 35860da9581dSEinar Lueck out: 35870da9581dSEinar Lueck return; 35880da9581dSEinar Lueck } 35890da9581dSEinar Lueck 35907bcd64ebSJulian Wiedmann static void qeth_qdio_input_handler(struct ccw_device *ccwdev, 35917bcd64ebSJulian Wiedmann unsigned int qdio_err, int queue, 35927bcd64ebSJulian Wiedmann int first_elem, int count, 3593a1c3ed4cSFrank Blaschka unsigned long card_ptr) 3594a1c3ed4cSFrank Blaschka { 3595a1c3ed4cSFrank Blaschka struct qeth_card *card = (struct qeth_card *)card_ptr; 3596a1c3ed4cSFrank Blaschka 35970da9581dSEinar Lueck QETH_CARD_TEXT_(card, 2, "qihq%d", queue); 35980da9581dSEinar Lueck QETH_CARD_TEXT_(card, 2, "qiec%d", qdio_err); 35990da9581dSEinar Lueck 36000da9581dSEinar Lueck if (qeth_is_cq(card, queue)) 36010da9581dSEinar Lueck qeth_qdio_cq_handler(card, qdio_err, queue, first_elem, count); 36020da9581dSEinar Lueck else if (qdio_err) 3603a1c3ed4cSFrank Blaschka qeth_schedule_recovery(card); 3604a1c3ed4cSFrank Blaschka } 3605a1c3ed4cSFrank Blaschka 36067bcd64ebSJulian Wiedmann static void qeth_qdio_output_handler(struct ccw_device *ccwdev, 36077bcd64ebSJulian Wiedmann unsigned int qdio_error, int __queue, 36087bcd64ebSJulian Wiedmann int first_element, int count, 36097bcd64ebSJulian Wiedmann unsigned long card_ptr) 36104a71df50SFrank Blaschka { 36114a71df50SFrank Blaschka struct qeth_card *card = (struct qeth_card *) card_ptr; 36124a71df50SFrank Blaschka struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue]; 36134a71df50SFrank Blaschka struct qeth_qdio_out_buffer *buffer; 36144a71df50SFrank Blaschka int i; 36154a71df50SFrank Blaschka 3616847a50fdSCarsten Otte QETH_CARD_TEXT(card, 6, "qdouhdl"); 36171549d13fSJan Glauber if (qdio_error & QDIO_ERROR_FATAL) { 3618847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "achkcond"); 36194a71df50SFrank Blaschka netif_stop_queue(card->dev); 36204a71df50SFrank Blaschka qeth_schedule_recovery(card); 36214a71df50SFrank Blaschka return; 36224a71df50SFrank Blaschka } 36234a71df50SFrank Blaschka if (card->options.performance_stats) { 36244a71df50SFrank Blaschka card->perf_stats.outbound_handler_cnt++; 36254a71df50SFrank Blaschka card->perf_stats.outbound_handler_start_time = 36264a71df50SFrank Blaschka qeth_get_micros(); 36274a71df50SFrank Blaschka } 36284a71df50SFrank Blaschka for (i = first_element; i < (first_element + count); ++i) { 36290da9581dSEinar Lueck int bidx = i % QDIO_MAX_BUFFERS_PER_Q; 36300da9581dSEinar Lueck buffer = queue->bufs[bidx]; 3631b67d801fSUrsula Braun qeth_handle_send_error(card, buffer, qdio_error); 36320da9581dSEinar Lueck 36330da9581dSEinar Lueck if (queue->bufstates && 36340da9581dSEinar Lueck (queue->bufstates[bidx].flags & 36350da9581dSEinar Lueck QDIO_OUTBUF_STATE_FLAG_PENDING) != 0) { 363618af5c17SStefan Raspl WARN_ON_ONCE(card->options.cq != QETH_CQ_ENABLED); 3637b3332930SFrank Blaschka 3638b3332930SFrank Blaschka if (atomic_cmpxchg(&buffer->state, 3639b3332930SFrank Blaschka QETH_QDIO_BUF_PRIMED, 3640b3332930SFrank Blaschka QETH_QDIO_BUF_PENDING) == 3641b3332930SFrank Blaschka QETH_QDIO_BUF_PRIMED) { 3642b3332930SFrank Blaschka qeth_notify_skbs(queue, buffer, 3643b3332930SFrank Blaschka TX_NOTIFY_PENDING); 3644b3332930SFrank Blaschka } 36450da9581dSEinar Lueck QETH_CARD_TEXT_(queue->card, 5, "pel%d", bidx); 3646ce28867fSJulian Wiedmann 3647ce28867fSJulian Wiedmann /* prepare the queue slot for re-use: */ 3648ce28867fSJulian Wiedmann qeth_scrub_qdio_buffer(buffer->buffer, 3649ce28867fSJulian Wiedmann QETH_MAX_BUFFER_ELEMENTS(card)); 3650b3332930SFrank Blaschka if (qeth_init_qdio_out_buf(queue, bidx)) { 3651b3332930SFrank Blaschka QETH_CARD_TEXT(card, 2, "outofbuf"); 36520da9581dSEinar Lueck qeth_schedule_recovery(card); 3653b3332930SFrank Blaschka } 36540da9581dSEinar Lueck } else { 3655b3332930SFrank Blaschka if (card->options.cq == QETH_CQ_ENABLED) { 3656b3332930SFrank Blaschka enum iucv_tx_notify n; 3657b3332930SFrank Blaschka 3658b3332930SFrank Blaschka n = qeth_compute_cq_notification( 3659b3332930SFrank Blaschka buffer->buffer->element[15].sflags, 0); 3660b3332930SFrank Blaschka qeth_notify_skbs(queue, buffer, n); 3661b3332930SFrank Blaschka } 3662b3332930SFrank Blaschka 36633b346c18SJulian Wiedmann qeth_clear_output_buffer(queue, buffer); 36640da9581dSEinar Lueck } 36650da9581dSEinar Lueck qeth_cleanup_handled_pending(queue, bidx, 0); 36664a71df50SFrank Blaschka } 36674a71df50SFrank Blaschka atomic_sub(count, &queue->used_buffers); 36684a71df50SFrank Blaschka /* check if we need to do something on this outbound queue */ 36694a71df50SFrank Blaschka if (card->info.type != QETH_CARD_TYPE_IQD) 36704a71df50SFrank Blaschka qeth_check_outbound_queue(queue); 36714a71df50SFrank Blaschka 36724a71df50SFrank Blaschka netif_wake_queue(queue->card->dev); 36734a71df50SFrank Blaschka if (card->options.performance_stats) 36744a71df50SFrank Blaschka card->perf_stats.outbound_handler_time += qeth_get_micros() - 36754a71df50SFrank Blaschka card->perf_stats.outbound_handler_start_time; 36764a71df50SFrank Blaschka } 36774a71df50SFrank Blaschka 367870deb016SHans Wippel /* We cannot use outbound queue 3 for unicast packets on HiperSockets */ 367970deb016SHans Wippel static inline int qeth_cut_iqd_prio(struct qeth_card *card, int queue_num) 368070deb016SHans Wippel { 368170deb016SHans Wippel if ((card->info.type == QETH_CARD_TYPE_IQD) && (queue_num == 3)) 368270deb016SHans Wippel return 2; 368370deb016SHans Wippel return queue_num; 368470deb016SHans Wippel } 368570deb016SHans Wippel 3686290b8348SStefan Raspl /** 3687290b8348SStefan Raspl * Note: Function assumes that we have 4 outbound queues. 3688290b8348SStefan Raspl */ 36894a71df50SFrank Blaschka int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb, 369086c0cdb9SJulian Wiedmann int ipv) 36914a71df50SFrank Blaschka { 3692d66cb37eSStefan Raspl __be16 *tci; 3693290b8348SStefan Raspl u8 tos; 3694290b8348SStefan Raspl 3695290b8348SStefan Raspl switch (card->qdio.do_prio_queueing) { 3696290b8348SStefan Raspl case QETH_PRIO_Q_ING_TOS: 3697290b8348SStefan Raspl case QETH_PRIO_Q_ING_PREC: 3698290b8348SStefan Raspl switch (ipv) { 3699290b8348SStefan Raspl case 4: 3700290b8348SStefan Raspl tos = ipv4_get_dsfield(ip_hdr(skb)); 3701290b8348SStefan Raspl break; 3702290b8348SStefan Raspl case 6: 3703290b8348SStefan Raspl tos = ipv6_get_dsfield(ipv6_hdr(skb)); 3704290b8348SStefan Raspl break; 37054a71df50SFrank Blaschka default: 37064a71df50SFrank Blaschka return card->qdio.default_out_queue; 37074a71df50SFrank Blaschka } 3708290b8348SStefan Raspl if (card->qdio.do_prio_queueing == QETH_PRIO_Q_ING_PREC) 370970deb016SHans Wippel return qeth_cut_iqd_prio(card, ~tos >> 6 & 3); 3710290b8348SStefan Raspl if (tos & IPTOS_MINCOST) 371170deb016SHans Wippel return qeth_cut_iqd_prio(card, 3); 3712290b8348SStefan Raspl if (tos & IPTOS_RELIABILITY) 3713290b8348SStefan Raspl return 2; 3714290b8348SStefan Raspl if (tos & IPTOS_THROUGHPUT) 3715290b8348SStefan Raspl return 1; 3716290b8348SStefan Raspl if (tos & IPTOS_LOWDELAY) 3717290b8348SStefan Raspl return 0; 3718d66cb37eSStefan Raspl break; 3719d66cb37eSStefan Raspl case QETH_PRIO_Q_ING_SKB: 3720d66cb37eSStefan Raspl if (skb->priority > 5) 3721d66cb37eSStefan Raspl return 0; 372270deb016SHans Wippel return qeth_cut_iqd_prio(card, ~skb->priority >> 1 & 3); 3723d66cb37eSStefan Raspl case QETH_PRIO_Q_ING_VLAN: 3724d66cb37eSStefan Raspl tci = &((struct ethhdr *)skb->data)->h_proto; 37256bee4e26SHans Wippel if (be16_to_cpu(*tci) == ETH_P_8021Q) 37266bee4e26SHans Wippel return qeth_cut_iqd_prio(card, 37276bee4e26SHans Wippel ~be16_to_cpu(*(tci + 1)) >> (VLAN_PRIO_SHIFT + 1) & 3); 3728d66cb37eSStefan Raspl break; 3729290b8348SStefan Raspl default: 3730290b8348SStefan Raspl break; 3731290b8348SStefan Raspl } 3732290b8348SStefan Raspl return card->qdio.default_out_queue; 37334a71df50SFrank Blaschka } 37344a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_get_priority_queue); 37354a71df50SFrank Blaschka 37362863c613SEugene Crosser /** 37372863c613SEugene Crosser * qeth_get_elements_for_frags() - find number of SBALEs for skb frags. 37382863c613SEugene Crosser * @skb: SKB address 37392863c613SEugene Crosser * 37402863c613SEugene Crosser * Returns the number of pages, and thus QDIO buffer elements, needed to cover 37412863c613SEugene Crosser * fragmented part of the SKB. Returns zero for linear SKB. 37422863c613SEugene Crosser */ 3743356156b6SJulian Wiedmann static int qeth_get_elements_for_frags(struct sk_buff *skb) 3744271648b4SFrank Blaschka { 37452863c613SEugene Crosser int cnt, elements = 0; 3746271648b4SFrank Blaschka 3747271648b4SFrank Blaschka for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) { 37482863c613SEugene Crosser struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[cnt]; 37492863c613SEugene Crosser 37502863c613SEugene Crosser elements += qeth_get_elements_for_range( 37512863c613SEugene Crosser (addr_t)skb_frag_address(frag), 37522863c613SEugene Crosser (addr_t)skb_frag_address(frag) + skb_frag_size(frag)); 3753271648b4SFrank Blaschka } 3754271648b4SFrank Blaschka return elements; 3755271648b4SFrank Blaschka } 3756271648b4SFrank Blaschka 375740e6a225SJulian Wiedmann /** 375840e6a225SJulian Wiedmann * qeth_count_elements() - Counts the number of QDIO buffer elements needed 375940e6a225SJulian Wiedmann * to transmit an skb. 376040e6a225SJulian Wiedmann * @skb: the skb to operate on. 376140e6a225SJulian Wiedmann * @data_offset: skip this part of the skb's linear data 376240e6a225SJulian Wiedmann * 376340e6a225SJulian Wiedmann * Returns the number of pages, and thus QDIO buffer elements, needed to map the 376440e6a225SJulian Wiedmann * skb's data (both its linear part and paged fragments). 376540e6a225SJulian Wiedmann */ 376640e6a225SJulian Wiedmann unsigned int qeth_count_elements(struct sk_buff *skb, unsigned int data_offset) 3767ba86ceeeSJulian Wiedmann { 3768ba86ceeeSJulian Wiedmann unsigned int elements = qeth_get_elements_for_frags(skb); 3769ba86ceeeSJulian Wiedmann addr_t end = (addr_t)skb->data + skb_headlen(skb); 3770ba86ceeeSJulian Wiedmann addr_t start = (addr_t)skb->data + data_offset; 3771ba86ceeeSJulian Wiedmann 3772ba86ceeeSJulian Wiedmann if (start != end) 3773ba86ceeeSJulian Wiedmann elements += qeth_get_elements_for_range(start, end); 3774ba86ceeeSJulian Wiedmann return elements; 3775ba86ceeeSJulian Wiedmann } 377640e6a225SJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_count_elements); 37774a71df50SFrank Blaschka 3778e517b649SJulian Wiedmann #define QETH_HDR_CACHE_OBJ_SIZE (sizeof(struct qeth_hdr_tso) + \ 3779e517b649SJulian Wiedmann MAX_TCP_HEADER) 378055494264SJulian Wiedmann 37810d6f02d3SJulian Wiedmann /** 3782ba86ceeeSJulian Wiedmann * qeth_add_hw_header() - add a HW header to an skb. 3783ba86ceeeSJulian Wiedmann * @skb: skb that the HW header should be added to. 37840d6f02d3SJulian Wiedmann * @hdr: double pointer to a qeth_hdr. When returning with >= 0, 37850d6f02d3SJulian Wiedmann * it contains a valid pointer to a qeth_hdr. 3786a7c2f4a3SJulian Wiedmann * @hdr_len: length of the HW header. 3787a7c2f4a3SJulian Wiedmann * @proto_len: length of protocol headers that need to be in same page as the 3788a7c2f4a3SJulian Wiedmann * HW header. 37890d6f02d3SJulian Wiedmann * 37900d6f02d3SJulian Wiedmann * Returns the pushed length. If the header can't be pushed on 37910d6f02d3SJulian Wiedmann * (eg. because it would cross a page boundary), it is allocated from 37920d6f02d3SJulian Wiedmann * the cache instead and 0 is returned. 3793ba86ceeeSJulian Wiedmann * The number of needed buffer elements is returned in @elements. 37940d6f02d3SJulian Wiedmann * Error to create the hdr is indicated by returning with < 0. 37950d6f02d3SJulian Wiedmann */ 379681ec5439SJulian Wiedmann static int qeth_add_hw_header(struct qeth_card *card, struct sk_buff *skb, 3797a7c2f4a3SJulian Wiedmann struct qeth_hdr **hdr, unsigned int hdr_len, 3798a7c2f4a3SJulian Wiedmann unsigned int proto_len, unsigned int *elements) 37990d6f02d3SJulian Wiedmann { 3800ba86ceeeSJulian Wiedmann const unsigned int max_elements = QETH_MAX_BUFFER_ELEMENTS(card); 3801a7c2f4a3SJulian Wiedmann const unsigned int contiguous = proto_len ? proto_len : 1; 3802ba86ceeeSJulian Wiedmann unsigned int __elements; 3803ba86ceeeSJulian Wiedmann addr_t start, end; 3804ba86ceeeSJulian Wiedmann bool push_ok; 3805ba86ceeeSJulian Wiedmann int rc; 3806ba86ceeeSJulian Wiedmann 3807ba86ceeeSJulian Wiedmann check_layout: 3808a7c2f4a3SJulian Wiedmann start = (addr_t)skb->data - hdr_len; 3809ba86ceeeSJulian Wiedmann end = (addr_t)skb->data; 3810ba86ceeeSJulian Wiedmann 3811a7c2f4a3SJulian Wiedmann if (qeth_get_elements_for_range(start, end + contiguous) == 1) { 3812ba86ceeeSJulian Wiedmann /* Push HW header into same page as first protocol header. */ 3813ba86ceeeSJulian Wiedmann push_ok = true; 3814e517b649SJulian Wiedmann /* ... but TSO always needs a separate element for headers: */ 3815e517b649SJulian Wiedmann if (skb_is_gso(skb)) 3816e517b649SJulian Wiedmann __elements = 1 + qeth_count_elements(skb, proto_len); 3817e517b649SJulian Wiedmann else 3818ba86ceeeSJulian Wiedmann __elements = qeth_count_elements(skb, 0); 3819a7c2f4a3SJulian Wiedmann } else if (!proto_len && qeth_get_elements_for_range(start, end) == 1) { 3820ba86ceeeSJulian Wiedmann /* Push HW header into a new page. */ 3821ba86ceeeSJulian Wiedmann push_ok = true; 3822a7c2f4a3SJulian Wiedmann __elements = 1 + qeth_count_elements(skb, 0); 3823a7c2f4a3SJulian Wiedmann } else { 3824a7c2f4a3SJulian Wiedmann /* Use header cache, copy protocol headers up. */ 3825ba86ceeeSJulian Wiedmann push_ok = false; 3826a7c2f4a3SJulian Wiedmann __elements = 1 + qeth_count_elements(skb, proto_len); 3827ba86ceeeSJulian Wiedmann } 3828ba86ceeeSJulian Wiedmann 3829ba86ceeeSJulian Wiedmann /* Compress skb to fit into one IO buffer: */ 3830ba86ceeeSJulian Wiedmann if (__elements > max_elements) { 3831ba86ceeeSJulian Wiedmann if (!skb_is_nonlinear(skb)) { 3832ba86ceeeSJulian Wiedmann /* Drop it, no easy way of shrinking it further. */ 3833ba86ceeeSJulian Wiedmann QETH_DBF_MESSAGE(2, "Dropped an oversized skb (Max Elements=%u / Actual=%u / Length=%u).\n", 3834ba86ceeeSJulian Wiedmann max_elements, __elements, skb->len); 3835ba86ceeeSJulian Wiedmann return -E2BIG; 3836ba86ceeeSJulian Wiedmann } 3837ba86ceeeSJulian Wiedmann 3838ba86ceeeSJulian Wiedmann rc = skb_linearize(skb); 3839ba86ceeeSJulian Wiedmann if (card->options.performance_stats) { 3840ba86ceeeSJulian Wiedmann if (rc) 3841ba86ceeeSJulian Wiedmann card->perf_stats.tx_linfail++; 3842ba86ceeeSJulian Wiedmann else 3843ba86ceeeSJulian Wiedmann card->perf_stats.tx_lin++; 3844ba86ceeeSJulian Wiedmann } 3845ba86ceeeSJulian Wiedmann if (rc) 3846ba86ceeeSJulian Wiedmann return rc; 3847ba86ceeeSJulian Wiedmann 3848ba86ceeeSJulian Wiedmann /* Linearization changed the layout, re-evaluate: */ 3849ba86ceeeSJulian Wiedmann goto check_layout; 3850ba86ceeeSJulian Wiedmann } 3851ba86ceeeSJulian Wiedmann 3852ba86ceeeSJulian Wiedmann *elements = __elements; 3853ba86ceeeSJulian Wiedmann /* Add the header: */ 3854ba86ceeeSJulian Wiedmann if (push_ok) { 3855a7c2f4a3SJulian Wiedmann *hdr = skb_push(skb, hdr_len); 3856a7c2f4a3SJulian Wiedmann return hdr_len; 38570d6f02d3SJulian Wiedmann } 38580d6f02d3SJulian Wiedmann /* fall back */ 385955494264SJulian Wiedmann if (hdr_len + proto_len > QETH_HDR_CACHE_OBJ_SIZE) 386055494264SJulian Wiedmann return -E2BIG; 38610d6f02d3SJulian Wiedmann *hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC); 38620d6f02d3SJulian Wiedmann if (!*hdr) 38630d6f02d3SJulian Wiedmann return -ENOMEM; 3864a7c2f4a3SJulian Wiedmann /* Copy protocol headers behind HW header: */ 3865a7c2f4a3SJulian Wiedmann skb_copy_from_linear_data(skb, ((char *)*hdr) + hdr_len, proto_len); 38660d6f02d3SJulian Wiedmann return 0; 38670d6f02d3SJulian Wiedmann } 38680d6f02d3SJulian Wiedmann 3869cef6ff22SJulian Wiedmann static void __qeth_fill_buffer(struct sk_buff *skb, 3870384d2ef1SJulian Wiedmann struct qeth_qdio_out_buffer *buf, 3871cc309f83SJulian Wiedmann bool is_first_elem, unsigned int offset) 38724a71df50SFrank Blaschka { 3873384d2ef1SJulian Wiedmann struct qdio_buffer *buffer = buf->buffer; 3874384d2ef1SJulian Wiedmann int element = buf->next_element_to_fill; 3875cc309f83SJulian Wiedmann int length = skb_headlen(skb) - offset; 3876cc309f83SJulian Wiedmann char *data = skb->data + offset; 3877384d2ef1SJulian Wiedmann int length_here, cnt; 38784a71df50SFrank Blaschka 3879cc309f83SJulian Wiedmann /* map linear part into buffer element(s) */ 38804a71df50SFrank Blaschka while (length > 0) { 38814a71df50SFrank Blaschka /* length_here is the remaining amount of data in this page */ 38824a71df50SFrank Blaschka length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE); 38834a71df50SFrank Blaschka if (length < length_here) 38844a71df50SFrank Blaschka length_here = length; 38854a71df50SFrank Blaschka 38864a71df50SFrank Blaschka buffer->element[element].addr = data; 38874a71df50SFrank Blaschka buffer->element[element].length = length_here; 38884a71df50SFrank Blaschka length -= length_here; 3889384d2ef1SJulian Wiedmann if (is_first_elem) { 3890384d2ef1SJulian Wiedmann is_first_elem = false; 38915258830bSJulian Wiedmann if (length || skb_is_nonlinear(skb)) 38925258830bSJulian Wiedmann /* skb needs additional elements */ 38933ec90878SJan Glauber buffer->element[element].eflags = 38943ec90878SJan Glauber SBAL_EFLAGS_FIRST_FRAG; 389551aa165cSFrank Blaschka else 38963ec90878SJan Glauber buffer->element[element].eflags = 0; 38974a71df50SFrank Blaschka } else { 38983ec90878SJan Glauber buffer->element[element].eflags = 38993ec90878SJan Glauber SBAL_EFLAGS_MIDDLE_FRAG; 39004a71df50SFrank Blaschka } 39014a71df50SFrank Blaschka data += length_here; 39024a71df50SFrank Blaschka element++; 39034a71df50SFrank Blaschka } 390451aa165cSFrank Blaschka 3905cc309f83SJulian Wiedmann /* map page frags into buffer element(s) */ 390651aa165cSFrank Blaschka for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) { 3907f8eb4930SJulian Wiedmann skb_frag_t *frag = &skb_shinfo(skb)->frags[cnt]; 3908f8eb4930SJulian Wiedmann 3909f8eb4930SJulian Wiedmann data = skb_frag_address(frag); 3910f8eb4930SJulian Wiedmann length = skb_frag_size(frag); 3911271648b4SFrank Blaschka while (length > 0) { 3912271648b4SFrank Blaschka length_here = PAGE_SIZE - 3913271648b4SFrank Blaschka ((unsigned long) data % PAGE_SIZE); 3914271648b4SFrank Blaschka if (length < length_here) 3915271648b4SFrank Blaschka length_here = length; 3916271648b4SFrank Blaschka 3917271648b4SFrank Blaschka buffer->element[element].addr = data; 3918271648b4SFrank Blaschka buffer->element[element].length = length_here; 3919271648b4SFrank Blaschka buffer->element[element].eflags = 3920271648b4SFrank Blaschka SBAL_EFLAGS_MIDDLE_FRAG; 3921271648b4SFrank Blaschka length -= length_here; 3922271648b4SFrank Blaschka data += length_here; 392351aa165cSFrank Blaschka element++; 392451aa165cSFrank Blaschka } 3925271648b4SFrank Blaschka } 392651aa165cSFrank Blaschka 39273ec90878SJan Glauber if (buffer->element[element - 1].eflags) 39283ec90878SJan Glauber buffer->element[element - 1].eflags = SBAL_EFLAGS_LAST_FRAG; 3929384d2ef1SJulian Wiedmann buf->next_element_to_fill = element; 39304a71df50SFrank Blaschka } 39314a71df50SFrank Blaschka 3932eaf3cc08SJulian Wiedmann /** 3933eaf3cc08SJulian Wiedmann * qeth_fill_buffer() - map skb into an output buffer 3934eaf3cc08SJulian Wiedmann * @queue: QDIO queue to submit the buffer on 3935eaf3cc08SJulian Wiedmann * @buf: buffer to transport the skb 3936eaf3cc08SJulian Wiedmann * @skb: skb to map into the buffer 3937eaf3cc08SJulian Wiedmann * @hdr: qeth_hdr for this skb. Either at skb->data, or allocated 3938eaf3cc08SJulian Wiedmann * from qeth_core_header_cache. 3939eaf3cc08SJulian Wiedmann * @offset: when mapping the skb, start at skb->data + offset 3940eaf3cc08SJulian Wiedmann * @hd_len: if > 0, build a dedicated header element of this size 3941eaf3cc08SJulian Wiedmann */ 3942cef6ff22SJulian Wiedmann static int qeth_fill_buffer(struct qeth_qdio_out_q *queue, 3943cc309f83SJulian Wiedmann struct qeth_qdio_out_buffer *buf, 3944cc309f83SJulian Wiedmann struct sk_buff *skb, struct qeth_hdr *hdr, 394513ddacb5SJulian Wiedmann unsigned int offset, unsigned int hd_len) 39464a71df50SFrank Blaschka { 3947eaf3cc08SJulian Wiedmann struct qdio_buffer *buffer = buf->buffer; 3948384d2ef1SJulian Wiedmann bool is_first_elem = true; 39494a71df50SFrank Blaschka 3950dc149e37SJulian Wiedmann __skb_queue_tail(&buf->skb_list, skb); 39514a71df50SFrank Blaschka 3952eaf3cc08SJulian Wiedmann /* build dedicated header element */ 3953eaf3cc08SJulian Wiedmann if (hd_len) { 3954683d718aSFrank Blaschka int element = buf->next_element_to_fill; 3955384d2ef1SJulian Wiedmann is_first_elem = false; 3956384d2ef1SJulian Wiedmann 3957683d718aSFrank Blaschka buffer->element[element].addr = hdr; 3958f1588177SJulian Wiedmann buffer->element[element].length = hd_len; 39593ec90878SJan Glauber buffer->element[element].eflags = SBAL_EFLAGS_FIRST_FRAG; 3960eaf3cc08SJulian Wiedmann /* remember to free cache-allocated qeth_hdr: */ 3961eaf3cc08SJulian Wiedmann buf->is_header[element] = ((void *)hdr != skb->data); 3962683d718aSFrank Blaschka buf->next_element_to_fill++; 3963683d718aSFrank Blaschka } 3964683d718aSFrank Blaschka 3965384d2ef1SJulian Wiedmann __qeth_fill_buffer(skb, buf, is_first_elem, offset); 39664a71df50SFrank Blaschka 39674a71df50SFrank Blaschka if (!queue->do_pack) { 3968847a50fdSCarsten Otte QETH_CARD_TEXT(queue->card, 6, "fillbfnp"); 39694a71df50SFrank Blaschka } else { 3970847a50fdSCarsten Otte QETH_CARD_TEXT(queue->card, 6, "fillbfpa"); 39714a71df50SFrank Blaschka if (queue->card->options.performance_stats) 39724a71df50SFrank Blaschka queue->card->perf_stats.skbs_sent_pack++; 3973f72b4644SJulian Wiedmann 3974f72b4644SJulian Wiedmann /* If the buffer still has free elements, keep using it. */ 3975f72b4644SJulian Wiedmann if (buf->next_element_to_fill < 3976f72b4644SJulian Wiedmann QETH_MAX_BUFFER_ELEMENTS(queue->card)) 3977f72b4644SJulian Wiedmann return 0; 3978f72b4644SJulian Wiedmann } 3979f72b4644SJulian Wiedmann 3980f72b4644SJulian Wiedmann /* flush out the buffer */ 39814a71df50SFrank Blaschka atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); 3982f72b4644SJulian Wiedmann queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) % 3983f72b4644SJulian Wiedmann QDIO_MAX_BUFFERS_PER_Q; 3984f72b4644SJulian Wiedmann return 1; 39854a71df50SFrank Blaschka } 39864a71df50SFrank Blaschka 398781ec5439SJulian Wiedmann static int qeth_do_send_packet_fast(struct qeth_qdio_out_q *queue, 398881ec5439SJulian Wiedmann struct sk_buff *skb, struct qeth_hdr *hdr, 398981ec5439SJulian Wiedmann unsigned int offset, unsigned int hd_len) 39904a71df50SFrank Blaschka { 39917c2e9ba3SJulian Wiedmann int index = queue->next_buf_to_fill; 39927c2e9ba3SJulian Wiedmann struct qeth_qdio_out_buffer *buffer = queue->bufs[index]; 39934a71df50SFrank Blaschka 39944a71df50SFrank Blaschka /* 39954a71df50SFrank Blaschka * check if buffer is empty to make sure that we do not 'overtake' 39964a71df50SFrank Blaschka * ourselves and try to fill a buffer that is already primed 39974a71df50SFrank Blaschka */ 39984a71df50SFrank Blaschka if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) 39997c2e9ba3SJulian Wiedmann return -EBUSY; 4000683d718aSFrank Blaschka qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len); 4001779e6e1cSJan Glauber qeth_flush_buffers(queue, index, 1); 40024a71df50SFrank Blaschka return 0; 40034a71df50SFrank Blaschka } 40044a71df50SFrank Blaschka 40054a71df50SFrank Blaschka int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, 40064a71df50SFrank Blaschka struct sk_buff *skb, struct qeth_hdr *hdr, 40079c3bfda9SJulian Wiedmann unsigned int offset, unsigned int hd_len, 40089c3bfda9SJulian Wiedmann int elements_needed) 40094a71df50SFrank Blaschka { 40104a71df50SFrank Blaschka struct qeth_qdio_out_buffer *buffer; 40114a71df50SFrank Blaschka int start_index; 40124a71df50SFrank Blaschka int flush_count = 0; 40134a71df50SFrank Blaschka int do_pack = 0; 40144a71df50SFrank Blaschka int tmp; 40154a71df50SFrank Blaschka int rc = 0; 40164a71df50SFrank Blaschka 40174a71df50SFrank Blaschka /* spin until we get the queue ... */ 40184a71df50SFrank Blaschka while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED, 40194a71df50SFrank Blaschka QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED); 40204a71df50SFrank Blaschka start_index = queue->next_buf_to_fill; 40210da9581dSEinar Lueck buffer = queue->bufs[queue->next_buf_to_fill]; 40224a71df50SFrank Blaschka /* 40234a71df50SFrank Blaschka * check if buffer is empty to make sure that we do not 'overtake' 40244a71df50SFrank Blaschka * ourselves and try to fill a buffer that is already primed 40254a71df50SFrank Blaschka */ 40264a71df50SFrank Blaschka if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) { 40274a71df50SFrank Blaschka atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); 40284a71df50SFrank Blaschka return -EBUSY; 40294a71df50SFrank Blaschka } 40304a71df50SFrank Blaschka /* check if we need to switch packing state of this queue */ 40314a71df50SFrank Blaschka qeth_switch_to_packing_if_needed(queue); 40324a71df50SFrank Blaschka if (queue->do_pack) { 40334a71df50SFrank Blaschka do_pack = 1; 40344a71df50SFrank Blaschka /* does packet fit in current buffer? */ 40354a71df50SFrank Blaschka if ((QETH_MAX_BUFFER_ELEMENTS(card) - 40364a71df50SFrank Blaschka buffer->next_element_to_fill) < elements_needed) { 40374a71df50SFrank Blaschka /* ... no -> set state PRIMED */ 403864ef8957SFrank Blaschka atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); 40394a71df50SFrank Blaschka flush_count++; 40404a71df50SFrank Blaschka queue->next_buf_to_fill = 40414a71df50SFrank Blaschka (queue->next_buf_to_fill + 1) % 40424a71df50SFrank Blaschka QDIO_MAX_BUFFERS_PER_Q; 40430da9581dSEinar Lueck buffer = queue->bufs[queue->next_buf_to_fill]; 40444a71df50SFrank Blaschka /* we did a step forward, so check buffer state 40454a71df50SFrank Blaschka * again */ 40464a71df50SFrank Blaschka if (atomic_read(&buffer->state) != 40474a71df50SFrank Blaschka QETH_QDIO_BUF_EMPTY) { 4048779e6e1cSJan Glauber qeth_flush_buffers(queue, start_index, 4049779e6e1cSJan Glauber flush_count); 40504a71df50SFrank Blaschka atomic_set(&queue->state, 40514a71df50SFrank Blaschka QETH_OUT_Q_UNLOCKED); 40523cdc8a25SJulian Wiedmann rc = -EBUSY; 40533cdc8a25SJulian Wiedmann goto out; 40544a71df50SFrank Blaschka } 40554a71df50SFrank Blaschka } 40564a71df50SFrank Blaschka } 4057f72b4644SJulian Wiedmann 4058f72b4644SJulian Wiedmann flush_count += qeth_fill_buffer(queue, buffer, skb, hdr, offset, 4059f72b4644SJulian Wiedmann hd_len); 40604a71df50SFrank Blaschka if (flush_count) 4061779e6e1cSJan Glauber qeth_flush_buffers(queue, start_index, flush_count); 40624a71df50SFrank Blaschka else if (!atomic_read(&queue->set_pci_flags_count)) 40634a71df50SFrank Blaschka atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH); 40644a71df50SFrank Blaschka /* 40654a71df50SFrank Blaschka * queue->state will go from LOCKED -> UNLOCKED or from 40664a71df50SFrank Blaschka * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us 40674a71df50SFrank Blaschka * (switch packing state or flush buffer to get another pci flag out). 40684a71df50SFrank Blaschka * In that case we will enter this loop 40694a71df50SFrank Blaschka */ 40704a71df50SFrank Blaschka while (atomic_dec_return(&queue->state)) { 40714a71df50SFrank Blaschka start_index = queue->next_buf_to_fill; 40724a71df50SFrank Blaschka /* check if we can go back to non-packing state */ 40733cdc8a25SJulian Wiedmann tmp = qeth_switch_to_nonpacking_if_needed(queue); 40744a71df50SFrank Blaschka /* 40754a71df50SFrank Blaschka * check if we need to flush a packing buffer to get a pci 40764a71df50SFrank Blaschka * flag out on the queue 40774a71df50SFrank Blaschka */ 40783cdc8a25SJulian Wiedmann if (!tmp && !atomic_read(&queue->set_pci_flags_count)) 40793cdc8a25SJulian Wiedmann tmp = qeth_prep_flush_pack_buffer(queue); 40803cdc8a25SJulian Wiedmann if (tmp) { 40813cdc8a25SJulian Wiedmann qeth_flush_buffers(queue, start_index, tmp); 40823cdc8a25SJulian Wiedmann flush_count += tmp; 40834a71df50SFrank Blaschka } 40843cdc8a25SJulian Wiedmann } 40853cdc8a25SJulian Wiedmann out: 40864a71df50SFrank Blaschka /* at this point the queue is UNLOCKED again */ 40874a71df50SFrank Blaschka if (queue->card->options.performance_stats && do_pack) 40884a71df50SFrank Blaschka queue->card->perf_stats.bufs_sent_pack += flush_count; 40894a71df50SFrank Blaschka 40904a71df50SFrank Blaschka return rc; 40914a71df50SFrank Blaschka } 40924a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_do_send_packet); 40934a71df50SFrank Blaschka 409481ec5439SJulian Wiedmann static void qeth_fill_tso_ext(struct qeth_hdr_tso *hdr, 409581ec5439SJulian Wiedmann unsigned int payload_len, struct sk_buff *skb, 409681ec5439SJulian Wiedmann unsigned int proto_len) 409782bf5c08SJulian Wiedmann { 409882bf5c08SJulian Wiedmann struct qeth_hdr_ext_tso *ext = &hdr->ext; 409982bf5c08SJulian Wiedmann 410082bf5c08SJulian Wiedmann ext->hdr_tot_len = sizeof(*ext); 410182bf5c08SJulian Wiedmann ext->imb_hdr_no = 1; 410282bf5c08SJulian Wiedmann ext->hdr_type = 1; 410382bf5c08SJulian Wiedmann ext->hdr_version = 1; 410482bf5c08SJulian Wiedmann ext->hdr_len = 28; 410582bf5c08SJulian Wiedmann ext->payload_len = payload_len; 410682bf5c08SJulian Wiedmann ext->mss = skb_shinfo(skb)->gso_size; 410782bf5c08SJulian Wiedmann ext->dg_hdr_len = proto_len; 410882bf5c08SJulian Wiedmann } 410982bf5c08SJulian Wiedmann 4110fc69660bSJulian Wiedmann int qeth_xmit(struct qeth_card *card, struct sk_buff *skb, 4111fc69660bSJulian Wiedmann struct qeth_qdio_out_q *queue, int ipv, int cast_type, 4112fc69660bSJulian Wiedmann void (*fill_header)(struct qeth_card *card, struct qeth_hdr *hdr, 4113fc69660bSJulian Wiedmann struct sk_buff *skb, int ipv, int cast_type, 4114fc69660bSJulian Wiedmann unsigned int data_len)) 4115fc69660bSJulian Wiedmann { 411682bf5c08SJulian Wiedmann unsigned int proto_len, hw_hdr_len; 4117fc69660bSJulian Wiedmann unsigned int frame_len = skb->len; 411882bf5c08SJulian Wiedmann bool is_tso = skb_is_gso(skb); 4119fc69660bSJulian Wiedmann unsigned int data_offset = 0; 4120fc69660bSJulian Wiedmann struct qeth_hdr *hdr = NULL; 4121fc69660bSJulian Wiedmann unsigned int hd_len = 0; 4122fc69660bSJulian Wiedmann unsigned int elements; 4123fc69660bSJulian Wiedmann int push_len, rc; 4124fc69660bSJulian Wiedmann bool is_sg; 4125fc69660bSJulian Wiedmann 412682bf5c08SJulian Wiedmann if (is_tso) { 412782bf5c08SJulian Wiedmann hw_hdr_len = sizeof(struct qeth_hdr_tso); 412882bf5c08SJulian Wiedmann proto_len = skb_transport_offset(skb) + tcp_hdrlen(skb); 412982bf5c08SJulian Wiedmann } else { 413082bf5c08SJulian Wiedmann hw_hdr_len = sizeof(struct qeth_hdr); 413181ec5439SJulian Wiedmann proto_len = (IS_IQD(card) && IS_LAYER2(card)) ? ETH_HLEN : 0; 413282bf5c08SJulian Wiedmann } 413382bf5c08SJulian Wiedmann 4134fc69660bSJulian Wiedmann rc = skb_cow_head(skb, hw_hdr_len); 4135fc69660bSJulian Wiedmann if (rc) 4136fc69660bSJulian Wiedmann return rc; 4137fc69660bSJulian Wiedmann 4138fc69660bSJulian Wiedmann push_len = qeth_add_hw_header(card, skb, &hdr, hw_hdr_len, proto_len, 4139fc69660bSJulian Wiedmann &elements); 4140fc69660bSJulian Wiedmann if (push_len < 0) 4141fc69660bSJulian Wiedmann return push_len; 414282bf5c08SJulian Wiedmann if (is_tso || !push_len) { 4143fc69660bSJulian Wiedmann /* HW header needs its own buffer element. */ 4144fc69660bSJulian Wiedmann hd_len = hw_hdr_len + proto_len; 414582bf5c08SJulian Wiedmann data_offset = push_len + proto_len; 4146fc69660bSJulian Wiedmann } 4147e517b649SJulian Wiedmann memset(hdr, 0, hw_hdr_len); 4148fc69660bSJulian Wiedmann fill_header(card, hdr, skb, ipv, cast_type, frame_len); 414982bf5c08SJulian Wiedmann if (is_tso) 415082bf5c08SJulian Wiedmann qeth_fill_tso_ext((struct qeth_hdr_tso *) hdr, 415182bf5c08SJulian Wiedmann frame_len - proto_len, skb, proto_len); 4152fc69660bSJulian Wiedmann 4153fc69660bSJulian Wiedmann is_sg = skb_is_nonlinear(skb); 4154fc69660bSJulian Wiedmann if (IS_IQD(card)) { 4155fc69660bSJulian Wiedmann rc = qeth_do_send_packet_fast(queue, skb, hdr, data_offset, 4156fc69660bSJulian Wiedmann hd_len); 4157fc69660bSJulian Wiedmann } else { 4158fc69660bSJulian Wiedmann /* TODO: drop skb_orphan() once TX completion is fast enough */ 4159fc69660bSJulian Wiedmann skb_orphan(skb); 4160fc69660bSJulian Wiedmann rc = qeth_do_send_packet(card, queue, skb, hdr, data_offset, 4161fc69660bSJulian Wiedmann hd_len, elements); 4162fc69660bSJulian Wiedmann } 4163fc69660bSJulian Wiedmann 4164fc69660bSJulian Wiedmann if (!rc) { 4165fc69660bSJulian Wiedmann if (card->options.performance_stats) { 4166fc69660bSJulian Wiedmann card->perf_stats.buf_elements_sent += elements; 4167fc69660bSJulian Wiedmann if (is_sg) 4168fc69660bSJulian Wiedmann card->perf_stats.sg_skbs_sent++; 416982bf5c08SJulian Wiedmann if (is_tso) { 417082bf5c08SJulian Wiedmann card->perf_stats.large_send_bytes += frame_len; 417182bf5c08SJulian Wiedmann card->perf_stats.large_send_cnt++; 417282bf5c08SJulian Wiedmann } 4173fc69660bSJulian Wiedmann } 4174fc69660bSJulian Wiedmann } else { 4175fc69660bSJulian Wiedmann if (!push_len) 4176fc69660bSJulian Wiedmann kmem_cache_free(qeth_core_header_cache, hdr); 4177fc69660bSJulian Wiedmann if (rc == -EBUSY) 4178fc69660bSJulian Wiedmann /* roll back to ETH header */ 4179fc69660bSJulian Wiedmann skb_pull(skb, push_len); 4180fc69660bSJulian Wiedmann } 4181fc69660bSJulian Wiedmann return rc; 4182fc69660bSJulian Wiedmann } 4183fc69660bSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_xmit); 4184fc69660bSJulian Wiedmann 41854a71df50SFrank Blaschka static int qeth_setadp_promisc_mode_cb(struct qeth_card *card, 41864a71df50SFrank Blaschka struct qeth_reply *reply, unsigned long data) 41874a71df50SFrank Blaschka { 4188686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 41894a71df50SFrank Blaschka struct qeth_ipacmd_setadpparms *setparms; 41904a71df50SFrank Blaschka 4191847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "prmadpcb"); 41924a71df50SFrank Blaschka 41934a71df50SFrank Blaschka setparms = &(cmd->data.setadapterparms); 4194686c97eeSJulian Wiedmann if (qeth_setadpparms_inspect_rc(cmd)) { 41958a593148SThomas Richter QETH_CARD_TEXT_(card, 4, "prmrc%x", cmd->hdr.return_code); 41964a71df50SFrank Blaschka setparms->data.mode = SET_PROMISC_MODE_OFF; 41974a71df50SFrank Blaschka } 41984a71df50SFrank Blaschka card->info.promisc_mode = setparms->data.mode; 41994a71df50SFrank Blaschka return 0; 42004a71df50SFrank Blaschka } 42014a71df50SFrank Blaschka 42024a71df50SFrank Blaschka void qeth_setadp_promisc_mode(struct qeth_card *card) 42034a71df50SFrank Blaschka { 42044a71df50SFrank Blaschka enum qeth_ipa_promisc_modes mode; 42054a71df50SFrank Blaschka struct net_device *dev = card->dev; 42064a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 42074a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 42084a71df50SFrank Blaschka 4209847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "setprom"); 42104a71df50SFrank Blaschka 42114a71df50SFrank Blaschka if (((dev->flags & IFF_PROMISC) && 42124a71df50SFrank Blaschka (card->info.promisc_mode == SET_PROMISC_MODE_ON)) || 42134a71df50SFrank Blaschka (!(dev->flags & IFF_PROMISC) && 42144a71df50SFrank Blaschka (card->info.promisc_mode == SET_PROMISC_MODE_OFF))) 42154a71df50SFrank Blaschka return; 42164a71df50SFrank Blaschka mode = SET_PROMISC_MODE_OFF; 42174a71df50SFrank Blaschka if (dev->flags & IFF_PROMISC) 42184a71df50SFrank Blaschka mode = SET_PROMISC_MODE_ON; 4219847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 4, "mode:%x", mode); 42204a71df50SFrank Blaschka 42214a71df50SFrank Blaschka iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE, 4222ca5b20acSStefan Raspl sizeof(struct qeth_ipacmd_setadpparms_hdr) + 8); 42231aec42bcSThomas Richter if (!iob) 42241aec42bcSThomas Richter return; 4225ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 42264a71df50SFrank Blaschka cmd->data.setadapterparms.data.mode = mode; 42274a71df50SFrank Blaschka qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL); 42284a71df50SFrank Blaschka } 42294a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode); 42304a71df50SFrank Blaschka 42314a71df50SFrank Blaschka struct net_device_stats *qeth_get_stats(struct net_device *dev) 42324a71df50SFrank Blaschka { 42334a71df50SFrank Blaschka struct qeth_card *card; 42344a71df50SFrank Blaschka 4235509e2562SHeiko Carstens card = dev->ml_priv; 42364a71df50SFrank Blaschka 4237847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "getstat"); 42384a71df50SFrank Blaschka 42394a71df50SFrank Blaschka return &card->stats; 42404a71df50SFrank Blaschka } 42414a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_get_stats); 42424a71df50SFrank Blaschka 42434a71df50SFrank Blaschka static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card, 42444a71df50SFrank Blaschka struct qeth_reply *reply, unsigned long data) 42454a71df50SFrank Blaschka { 4246686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 4247b144b99fSJulian Wiedmann struct qeth_ipacmd_setadpparms *adp_cmd; 42484a71df50SFrank Blaschka 4249847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "chgmaccb"); 4250686c97eeSJulian Wiedmann if (qeth_setadpparms_inspect_rc(cmd)) 42514b7ae122SJulian Wiedmann return -EIO; 42524a71df50SFrank Blaschka 4253b144b99fSJulian Wiedmann adp_cmd = &cmd->data.setadapterparms; 42544b7ae122SJulian Wiedmann if (!is_valid_ether_addr(adp_cmd->data.change_addr.addr)) 42554b7ae122SJulian Wiedmann return -EADDRNOTAVAIL; 42564b7ae122SJulian Wiedmann 4257b144b99fSJulian Wiedmann if (IS_LAYER2(card) && IS_OSD(card) && !IS_VM_NIC(card) && 4258b144b99fSJulian Wiedmann !(adp_cmd->hdr.flags & QETH_SETADP_FLAGS_VIRTUAL_MAC)) 42594b7ae122SJulian Wiedmann return -EADDRNOTAVAIL; 4260b144b99fSJulian Wiedmann 4261b144b99fSJulian Wiedmann ether_addr_copy(card->dev->dev_addr, adp_cmd->data.change_addr.addr); 42624a71df50SFrank Blaschka return 0; 42634a71df50SFrank Blaschka } 42644a71df50SFrank Blaschka 42654a71df50SFrank Blaschka int qeth_setadpparms_change_macaddr(struct qeth_card *card) 42664a71df50SFrank Blaschka { 42674a71df50SFrank Blaschka int rc; 42684a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 42694a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 42704a71df50SFrank Blaschka 4271847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "chgmac"); 42724a71df50SFrank Blaschka 42734a71df50SFrank Blaschka iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS, 4274ca5b20acSStefan Raspl sizeof(struct qeth_ipacmd_setadpparms_hdr) + 4275ca5b20acSStefan Raspl sizeof(struct qeth_change_addr)); 42761aec42bcSThomas Richter if (!iob) 42771aec42bcSThomas Richter return -ENOMEM; 4278ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 42794a71df50SFrank Blaschka cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC; 428099f0b85dSJulian Wiedmann cmd->data.setadapterparms.data.change_addr.addr_size = ETH_ALEN; 428199f0b85dSJulian Wiedmann ether_addr_copy(cmd->data.setadapterparms.data.change_addr.addr, 428299f0b85dSJulian Wiedmann card->dev->dev_addr); 42834a71df50SFrank Blaschka rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb, 42844a71df50SFrank Blaschka NULL); 42854a71df50SFrank Blaschka return rc; 42864a71df50SFrank Blaschka } 42874a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr); 42884a71df50SFrank Blaschka 4289d64ecc22SEinar Lueck static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card, 4290d64ecc22SEinar Lueck struct qeth_reply *reply, unsigned long data) 4291d64ecc22SEinar Lueck { 4292686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 4293d64ecc22SEinar Lueck struct qeth_set_access_ctrl *access_ctrl_req; 42940f54761dSStefan Raspl int fallback = *(int *)reply->param; 4295d64ecc22SEinar Lueck 4296847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "setaccb"); 4297686c97eeSJulian Wiedmann if (cmd->hdr.return_code) 4298686c97eeSJulian Wiedmann return 0; 4299686c97eeSJulian Wiedmann qeth_setadpparms_inspect_rc(cmd); 4300d64ecc22SEinar Lueck 4301d64ecc22SEinar Lueck access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl; 4302d64ecc22SEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "setaccb"); 4303d64ecc22SEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name); 4304d64ecc22SEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "rc=%d", 4305d64ecc22SEinar Lueck cmd->data.setadapterparms.hdr.return_code); 43060f54761dSStefan Raspl if (cmd->data.setadapterparms.hdr.return_code != 43070f54761dSStefan Raspl SET_ACCESS_CTRL_RC_SUCCESS) 4308e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%#x) on device %x: %#x\n", 4309e19e5be8SJulian Wiedmann access_ctrl_req->subcmd_code, CARD_DEVID(card), 43100f54761dSStefan Raspl cmd->data.setadapterparms.hdr.return_code); 4311d64ecc22SEinar Lueck switch (cmd->data.setadapterparms.hdr.return_code) { 4312d64ecc22SEinar Lueck case SET_ACCESS_CTRL_RC_SUCCESS: 4313d64ecc22SEinar Lueck if (card->options.isolation == ISOLATION_MODE_NONE) { 4314d64ecc22SEinar Lueck dev_info(&card->gdev->dev, 4315d64ecc22SEinar Lueck "QDIO data connection isolation is deactivated\n"); 4316d64ecc22SEinar Lueck } else { 4317d64ecc22SEinar Lueck dev_info(&card->gdev->dev, 4318d64ecc22SEinar Lueck "QDIO data connection isolation is activated\n"); 4319d64ecc22SEinar Lueck } 4320d64ecc22SEinar Lueck break; 43210f54761dSStefan Raspl case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED: 4322e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "QDIO data connection isolation on device %x already deactivated\n", 4323e19e5be8SJulian Wiedmann CARD_DEVID(card)); 43240f54761dSStefan Raspl if (fallback) 43250f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 43260f54761dSStefan Raspl break; 43270f54761dSStefan Raspl case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED: 4328e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "QDIO data connection isolation on device %x already activated\n", 4329e19e5be8SJulian Wiedmann CARD_DEVID(card)); 43300f54761dSStefan Raspl if (fallback) 43310f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 43320f54761dSStefan Raspl break; 4333d64ecc22SEinar Lueck case SET_ACCESS_CTRL_RC_NOT_SUPPORTED: 4334d64ecc22SEinar Lueck dev_err(&card->gdev->dev, "Adapter does not " 4335d64ecc22SEinar Lueck "support QDIO data connection isolation\n"); 4336d64ecc22SEinar Lueck break; 4337d64ecc22SEinar Lueck case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER: 4338d64ecc22SEinar Lueck dev_err(&card->gdev->dev, 4339d64ecc22SEinar Lueck "Adapter is dedicated. " 4340d64ecc22SEinar Lueck "QDIO data connection isolation not supported\n"); 43410f54761dSStefan Raspl if (fallback) 43420f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 4343d64ecc22SEinar Lueck break; 4344d64ecc22SEinar Lueck case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF: 4345d64ecc22SEinar Lueck dev_err(&card->gdev->dev, 4346d64ecc22SEinar Lueck "TSO does not permit QDIO data connection isolation\n"); 43470f54761dSStefan Raspl if (fallback) 43480f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 4349d64ecc22SEinar Lueck break; 43500f54761dSStefan Raspl case SET_ACCESS_CTRL_RC_REFLREL_UNSUPPORTED: 43510f54761dSStefan Raspl dev_err(&card->gdev->dev, "The adjacent switch port does not " 43520f54761dSStefan Raspl "support reflective relay mode\n"); 43530f54761dSStefan Raspl if (fallback) 43540f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 43550f54761dSStefan Raspl break; 43560f54761dSStefan Raspl case SET_ACCESS_CTRL_RC_REFLREL_FAILED: 43570f54761dSStefan Raspl dev_err(&card->gdev->dev, "The reflective relay mode cannot be " 43580f54761dSStefan Raspl "enabled at the adjacent switch port"); 43590f54761dSStefan Raspl if (fallback) 43600f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 43610f54761dSStefan Raspl break; 43620f54761dSStefan Raspl case SET_ACCESS_CTRL_RC_REFLREL_DEACT_FAILED: 43630f54761dSStefan Raspl dev_warn(&card->gdev->dev, "Turning off reflective relay mode " 43640f54761dSStefan Raspl "at the adjacent switch failed\n"); 43650f54761dSStefan Raspl break; 4366d64ecc22SEinar Lueck default: 4367d64ecc22SEinar Lueck /* this should never happen */ 43680f54761dSStefan Raspl if (fallback) 43690f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 4370d64ecc22SEinar Lueck break; 4371d64ecc22SEinar Lueck } 4372bbb822a8SUrsula Braun return 0; 4373d64ecc22SEinar Lueck } 4374d64ecc22SEinar Lueck 4375d64ecc22SEinar Lueck static int qeth_setadpparms_set_access_ctrl(struct qeth_card *card, 43760f54761dSStefan Raspl enum qeth_ipa_isolation_modes isolation, int fallback) 4377d64ecc22SEinar Lueck { 4378d64ecc22SEinar Lueck int rc; 4379d64ecc22SEinar Lueck struct qeth_cmd_buffer *iob; 4380d64ecc22SEinar Lueck struct qeth_ipa_cmd *cmd; 4381d64ecc22SEinar Lueck struct qeth_set_access_ctrl *access_ctrl_req; 4382d64ecc22SEinar Lueck 4383847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "setacctl"); 4384d64ecc22SEinar Lueck 4385d64ecc22SEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "setacctl"); 4386d64ecc22SEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name); 4387d64ecc22SEinar Lueck 4388d64ecc22SEinar Lueck iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_ACCESS_CONTROL, 4389d64ecc22SEinar Lueck sizeof(struct qeth_ipacmd_setadpparms_hdr) + 4390d64ecc22SEinar Lueck sizeof(struct qeth_set_access_ctrl)); 43911aec42bcSThomas Richter if (!iob) 43921aec42bcSThomas Richter return -ENOMEM; 4393ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 4394d64ecc22SEinar Lueck access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl; 4395d64ecc22SEinar Lueck access_ctrl_req->subcmd_code = isolation; 4396d64ecc22SEinar Lueck 4397d64ecc22SEinar Lueck rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_set_access_ctrl_cb, 43980f54761dSStefan Raspl &fallback); 4399d64ecc22SEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "rc=%d", rc); 4400d64ecc22SEinar Lueck return rc; 4401d64ecc22SEinar Lueck } 4402d64ecc22SEinar Lueck 44030f54761dSStefan Raspl int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback) 4404d64ecc22SEinar Lueck { 4405d64ecc22SEinar Lueck int rc = 0; 4406d64ecc22SEinar Lueck 4407847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "setactlo"); 4408d64ecc22SEinar Lueck 44095113fec0SUrsula Braun if ((card->info.type == QETH_CARD_TYPE_OSD || 44105113fec0SUrsula Braun card->info.type == QETH_CARD_TYPE_OSX) && 4411d64ecc22SEinar Lueck qeth_adp_supported(card, IPA_SETADP_SET_ACCESS_CONTROL)) { 4412d64ecc22SEinar Lueck rc = qeth_setadpparms_set_access_ctrl(card, 44130f54761dSStefan Raspl card->options.isolation, fallback); 4414d64ecc22SEinar Lueck if (rc) { 4415e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(3, "IPA(SET_ACCESS_CTRL(%d) on device %x: sent failed\n", 4416e19e5be8SJulian Wiedmann rc, CARD_DEVID(card)); 44170f54761dSStefan Raspl rc = -EOPNOTSUPP; 4418d64ecc22SEinar Lueck } 4419d64ecc22SEinar Lueck } else if (card->options.isolation != ISOLATION_MODE_NONE) { 4420d64ecc22SEinar Lueck card->options.isolation = ISOLATION_MODE_NONE; 4421d64ecc22SEinar Lueck 4422d64ecc22SEinar Lueck dev_err(&card->gdev->dev, "Adapter does not " 4423d64ecc22SEinar Lueck "support QDIO data connection isolation\n"); 4424d64ecc22SEinar Lueck rc = -EOPNOTSUPP; 4425d64ecc22SEinar Lueck } 4426d64ecc22SEinar Lueck return rc; 4427d64ecc22SEinar Lueck } 4428d64ecc22SEinar Lueck EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online); 4429d64ecc22SEinar Lueck 44304a71df50SFrank Blaschka void qeth_tx_timeout(struct net_device *dev) 44314a71df50SFrank Blaschka { 44324a71df50SFrank Blaschka struct qeth_card *card; 44334a71df50SFrank Blaschka 4434509e2562SHeiko Carstens card = dev->ml_priv; 4435847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "txtimeo"); 44364a71df50SFrank Blaschka card->stats.tx_errors++; 44374a71df50SFrank Blaschka qeth_schedule_recovery(card); 44384a71df50SFrank Blaschka } 44394a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_tx_timeout); 44404a71df50SFrank Blaschka 4441942d6984SJulian Wiedmann static int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum) 44424a71df50SFrank Blaschka { 4443509e2562SHeiko Carstens struct qeth_card *card = dev->ml_priv; 44444a71df50SFrank Blaschka int rc = 0; 44454a71df50SFrank Blaschka 44464a71df50SFrank Blaschka switch (regnum) { 44474a71df50SFrank Blaschka case MII_BMCR: /* Basic mode control register */ 44484a71df50SFrank Blaschka rc = BMCR_FULLDPLX; 44494a71df50SFrank Blaschka if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) && 44504a71df50SFrank Blaschka (card->info.link_type != QETH_LINK_TYPE_OSN) && 445154e049c2SJulian Wiedmann (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH) && 445254e049c2SJulian Wiedmann (card->info.link_type != QETH_LINK_TYPE_25GBIT_ETH)) 44534a71df50SFrank Blaschka rc |= BMCR_SPEED100; 44544a71df50SFrank Blaschka break; 44554a71df50SFrank Blaschka case MII_BMSR: /* Basic mode status register */ 44564a71df50SFrank Blaschka rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS | 44574a71df50SFrank Blaschka BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL | 44584a71df50SFrank Blaschka BMSR_100BASE4; 44594a71df50SFrank Blaschka break; 44604a71df50SFrank Blaschka case MII_PHYSID1: /* PHYS ID 1 */ 44614a71df50SFrank Blaschka rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) | 44624a71df50SFrank Blaschka dev->dev_addr[2]; 44634a71df50SFrank Blaschka rc = (rc >> 5) & 0xFFFF; 44644a71df50SFrank Blaschka break; 44654a71df50SFrank Blaschka case MII_PHYSID2: /* PHYS ID 2 */ 44664a71df50SFrank Blaschka rc = (dev->dev_addr[2] << 10) & 0xFFFF; 44674a71df50SFrank Blaschka break; 44684a71df50SFrank Blaschka case MII_ADVERTISE: /* Advertisement control reg */ 44694a71df50SFrank Blaschka rc = ADVERTISE_ALL; 44704a71df50SFrank Blaschka break; 44714a71df50SFrank Blaschka case MII_LPA: /* Link partner ability reg */ 44724a71df50SFrank Blaschka rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL | 44734a71df50SFrank Blaschka LPA_100BASE4 | LPA_LPACK; 44744a71df50SFrank Blaschka break; 44754a71df50SFrank Blaschka case MII_EXPANSION: /* Expansion register */ 44764a71df50SFrank Blaschka break; 44774a71df50SFrank Blaschka case MII_DCOUNTER: /* disconnect counter */ 44784a71df50SFrank Blaschka break; 44794a71df50SFrank Blaschka case MII_FCSCOUNTER: /* false carrier counter */ 44804a71df50SFrank Blaschka break; 44814a71df50SFrank Blaschka case MII_NWAYTEST: /* N-way auto-neg test register */ 44824a71df50SFrank Blaschka break; 44834a71df50SFrank Blaschka case MII_RERRCOUNTER: /* rx error counter */ 44844a71df50SFrank Blaschka rc = card->stats.rx_errors; 44854a71df50SFrank Blaschka break; 44864a71df50SFrank Blaschka case MII_SREVISION: /* silicon revision */ 44874a71df50SFrank Blaschka break; 44884a71df50SFrank Blaschka case MII_RESV1: /* reserved 1 */ 44894a71df50SFrank Blaschka break; 44904a71df50SFrank Blaschka case MII_LBRERROR: /* loopback, rx, bypass error */ 44914a71df50SFrank Blaschka break; 44924a71df50SFrank Blaschka case MII_PHYADDR: /* physical address */ 44934a71df50SFrank Blaschka break; 44944a71df50SFrank Blaschka case MII_RESV2: /* reserved 2 */ 44954a71df50SFrank Blaschka break; 44964a71df50SFrank Blaschka case MII_TPISTATUS: /* TPI status for 10mbps */ 44974a71df50SFrank Blaschka break; 44984a71df50SFrank Blaschka case MII_NCONFIG: /* network interface config */ 44994a71df50SFrank Blaschka break; 45004a71df50SFrank Blaschka default: 45014a71df50SFrank Blaschka break; 45024a71df50SFrank Blaschka } 45034a71df50SFrank Blaschka return rc; 45044a71df50SFrank Blaschka } 45054a71df50SFrank Blaschka 45064a71df50SFrank Blaschka static int qeth_snmp_command_cb(struct qeth_card *card, 45074a71df50SFrank Blaschka struct qeth_reply *reply, unsigned long sdata) 45084a71df50SFrank Blaschka { 45094a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 45104a71df50SFrank Blaschka struct qeth_arp_query_info *qinfo; 45114a71df50SFrank Blaschka unsigned char *data; 45129a764c1eSJulian Wiedmann void *snmp_data; 45134a71df50SFrank Blaschka __u16 data_len; 45144a71df50SFrank Blaschka 4515847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "snpcmdcb"); 45164a71df50SFrank Blaschka 45174a71df50SFrank Blaschka cmd = (struct qeth_ipa_cmd *) sdata; 45184a71df50SFrank Blaschka data = (unsigned char *)((char *)cmd - reply->offset); 45194a71df50SFrank Blaschka qinfo = (struct qeth_arp_query_info *) reply->param; 45204a71df50SFrank Blaschka 45214a71df50SFrank Blaschka if (cmd->hdr.return_code) { 45228a593148SThomas Richter QETH_CARD_TEXT_(card, 4, "scer1%x", cmd->hdr.return_code); 45234b7ae122SJulian Wiedmann return -EIO; 45244a71df50SFrank Blaschka } 45254a71df50SFrank Blaschka if (cmd->data.setadapterparms.hdr.return_code) { 45264a71df50SFrank Blaschka cmd->hdr.return_code = 45274a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.return_code; 45288a593148SThomas Richter QETH_CARD_TEXT_(card, 4, "scer2%x", cmd->hdr.return_code); 45294b7ae122SJulian Wiedmann return -EIO; 45304a71df50SFrank Blaschka } 45314a71df50SFrank Blaschka data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data)); 45329a764c1eSJulian Wiedmann if (cmd->data.setadapterparms.hdr.seq_no == 1) { 45339a764c1eSJulian Wiedmann snmp_data = &cmd->data.setadapterparms.data.snmp; 45349a764c1eSJulian Wiedmann data_len -= offsetof(struct qeth_ipa_cmd, 45359a764c1eSJulian Wiedmann data.setadapterparms.data.snmp); 45369a764c1eSJulian Wiedmann } else { 45379a764c1eSJulian Wiedmann snmp_data = &cmd->data.setadapterparms.data.snmp.request; 45389a764c1eSJulian Wiedmann data_len -= offsetof(struct qeth_ipa_cmd, 45399a764c1eSJulian Wiedmann data.setadapterparms.data.snmp.request); 45409a764c1eSJulian Wiedmann } 45414a71df50SFrank Blaschka 45424a71df50SFrank Blaschka /* check if there is enough room in userspace */ 45434a71df50SFrank Blaschka if ((qinfo->udata_len - qinfo->udata_offset) < data_len) { 45444b7ae122SJulian Wiedmann QETH_CARD_TEXT_(card, 4, "scer3%i", -ENOSPC); 45454b7ae122SJulian Wiedmann return -ENOSPC; 45464a71df50SFrank Blaschka } 4547847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 4, "snore%i", 45484a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.used_total); 4549847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 4, "sseqn%i", 45504a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.seq_no); 45514a71df50SFrank Blaschka /*copy entries to user buffer*/ 45529a764c1eSJulian Wiedmann memcpy(qinfo->udata + qinfo->udata_offset, snmp_data, data_len); 45534a71df50SFrank Blaschka qinfo->udata_offset += data_len; 45549a764c1eSJulian Wiedmann 45554a71df50SFrank Blaschka /* check if all replies received ... */ 4556847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 4, "srtot%i", 45574a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.used_total); 4558847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 4, "srseq%i", 45594a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.seq_no); 45604a71df50SFrank Blaschka if (cmd->data.setadapterparms.hdr.seq_no < 45614a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.used_total) 45624a71df50SFrank Blaschka return 1; 45634a71df50SFrank Blaschka return 0; 45644a71df50SFrank Blaschka } 45654a71df50SFrank Blaschka 4566942d6984SJulian Wiedmann static int qeth_snmp_command(struct qeth_card *card, char __user *udata) 45674a71df50SFrank Blaschka { 45684a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 45694a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 45704a71df50SFrank Blaschka struct qeth_snmp_ureq *ureq; 45716fb392b1SUrsula Braun unsigned int req_len; 45724a71df50SFrank Blaschka struct qeth_arp_query_info qinfo = {0, }; 45734a71df50SFrank Blaschka int rc = 0; 45744a71df50SFrank Blaschka 4575847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "snmpcmd"); 45764a71df50SFrank Blaschka 45774a71df50SFrank Blaschka if (card->info.guestlan) 45784a71df50SFrank Blaschka return -EOPNOTSUPP; 45794a71df50SFrank Blaschka 45804a71df50SFrank Blaschka if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) && 45814fda3354SJulian Wiedmann IS_LAYER3(card)) 45824a71df50SFrank Blaschka return -EOPNOTSUPP; 45834fda3354SJulian Wiedmann 45844a71df50SFrank Blaschka /* skip 4 bytes (data_len struct member) to get req_len */ 45854a71df50SFrank Blaschka if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int))) 45864a71df50SFrank Blaschka return -EFAULT; 45876fb392b1SUrsula Braun if (req_len > (QETH_BUFSIZE - IPA_PDU_HEADER_SIZE - 45886fb392b1SUrsula Braun sizeof(struct qeth_ipacmd_hdr) - 45896fb392b1SUrsula Braun sizeof(struct qeth_ipacmd_setadpparms_hdr))) 45906fb392b1SUrsula Braun return -EINVAL; 45914986f3f0SJulia Lawall ureq = memdup_user(udata, req_len + sizeof(struct qeth_snmp_ureq_hdr)); 45924986f3f0SJulia Lawall if (IS_ERR(ureq)) { 4593847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "snmpnome"); 45944986f3f0SJulia Lawall return PTR_ERR(ureq); 45954a71df50SFrank Blaschka } 45964a71df50SFrank Blaschka qinfo.udata_len = ureq->hdr.data_len; 45974a71df50SFrank Blaschka qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL); 45984a71df50SFrank Blaschka if (!qinfo.udata) { 45994a71df50SFrank Blaschka kfree(ureq); 46004a71df50SFrank Blaschka return -ENOMEM; 46014a71df50SFrank Blaschka } 46024a71df50SFrank Blaschka qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr); 46034a71df50SFrank Blaschka 46044a71df50SFrank Blaschka iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL, 46054a71df50SFrank Blaschka QETH_SNMP_SETADP_CMDLENGTH + req_len); 46061aec42bcSThomas Richter if (!iob) { 46071aec42bcSThomas Richter rc = -ENOMEM; 46081aec42bcSThomas Richter goto out; 46091aec42bcSThomas Richter } 4610c2153277SJulian Wiedmann 4611c2153277SJulian Wiedmann /* for large requests, fix-up the length fields: */ 4612c2153277SJulian Wiedmann qeth_prepare_ipa_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len); 4613c2153277SJulian Wiedmann 4614ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 46154a71df50SFrank Blaschka memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len); 4616c2153277SJulian Wiedmann rc = qeth_send_ipa_cmd(card, iob, qeth_snmp_command_cb, &qinfo); 46174a71df50SFrank Blaschka if (rc) 4618e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "SNMP command failed on device %x: (%#x)\n", 4619e19e5be8SJulian Wiedmann CARD_DEVID(card), rc); 46204a71df50SFrank Blaschka else { 46214a71df50SFrank Blaschka if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) 46224a71df50SFrank Blaschka rc = -EFAULT; 46234a71df50SFrank Blaschka } 46241aec42bcSThomas Richter out: 46254a71df50SFrank Blaschka kfree(ureq); 46264a71df50SFrank Blaschka kfree(qinfo.udata); 46274a71df50SFrank Blaschka return rc; 46284a71df50SFrank Blaschka } 46294a71df50SFrank Blaschka 4630c3ab96f3SFrank Blaschka static int qeth_setadpparms_query_oat_cb(struct qeth_card *card, 4631c3ab96f3SFrank Blaschka struct qeth_reply *reply, unsigned long data) 4632c3ab96f3SFrank Blaschka { 4633686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data; 4634c3ab96f3SFrank Blaschka struct qeth_qoat_priv *priv; 4635c3ab96f3SFrank Blaschka char *resdata; 4636c3ab96f3SFrank Blaschka int resdatalen; 4637c3ab96f3SFrank Blaschka 4638c3ab96f3SFrank Blaschka QETH_CARD_TEXT(card, 3, "qoatcb"); 4639686c97eeSJulian Wiedmann if (qeth_setadpparms_inspect_rc(cmd)) 46404b7ae122SJulian Wiedmann return -EIO; 4641c3ab96f3SFrank Blaschka 4642c3ab96f3SFrank Blaschka priv = (struct qeth_qoat_priv *)reply->param; 4643c3ab96f3SFrank Blaschka resdatalen = cmd->data.setadapterparms.hdr.cmdlength; 4644c3ab96f3SFrank Blaschka resdata = (char *)data + 28; 4645c3ab96f3SFrank Blaschka 46464b7ae122SJulian Wiedmann if (resdatalen > (priv->buffer_len - priv->response_len)) 46474b7ae122SJulian Wiedmann return -ENOSPC; 4648c3ab96f3SFrank Blaschka 4649c3ab96f3SFrank Blaschka memcpy((priv->buffer + priv->response_len), resdata, 4650c3ab96f3SFrank Blaschka resdatalen); 4651c3ab96f3SFrank Blaschka priv->response_len += resdatalen; 4652c3ab96f3SFrank Blaschka 4653c3ab96f3SFrank Blaschka if (cmd->data.setadapterparms.hdr.seq_no < 4654c3ab96f3SFrank Blaschka cmd->data.setadapterparms.hdr.used_total) 4655c3ab96f3SFrank Blaschka return 1; 4656c3ab96f3SFrank Blaschka return 0; 4657c3ab96f3SFrank Blaschka } 4658c3ab96f3SFrank Blaschka 4659942d6984SJulian Wiedmann static int qeth_query_oat_command(struct qeth_card *card, char __user *udata) 4660c3ab96f3SFrank Blaschka { 4661c3ab96f3SFrank Blaschka int rc = 0; 4662c3ab96f3SFrank Blaschka struct qeth_cmd_buffer *iob; 4663c3ab96f3SFrank Blaschka struct qeth_ipa_cmd *cmd; 4664c3ab96f3SFrank Blaschka struct qeth_query_oat *oat_req; 4665c3ab96f3SFrank Blaschka struct qeth_query_oat_data oat_data; 4666c3ab96f3SFrank Blaschka struct qeth_qoat_priv priv; 4667c3ab96f3SFrank Blaschka void __user *tmp; 4668c3ab96f3SFrank Blaschka 4669c3ab96f3SFrank Blaschka QETH_CARD_TEXT(card, 3, "qoatcmd"); 4670c3ab96f3SFrank Blaschka 4671c3ab96f3SFrank Blaschka if (!qeth_adp_supported(card, IPA_SETADP_QUERY_OAT)) { 4672c3ab96f3SFrank Blaschka rc = -EOPNOTSUPP; 4673c3ab96f3SFrank Blaschka goto out; 4674c3ab96f3SFrank Blaschka } 4675c3ab96f3SFrank Blaschka 4676c3ab96f3SFrank Blaschka if (copy_from_user(&oat_data, udata, 4677c3ab96f3SFrank Blaschka sizeof(struct qeth_query_oat_data))) { 4678c3ab96f3SFrank Blaschka rc = -EFAULT; 4679c3ab96f3SFrank Blaschka goto out; 4680c3ab96f3SFrank Blaschka } 4681c3ab96f3SFrank Blaschka 4682c3ab96f3SFrank Blaschka priv.buffer_len = oat_data.buffer_len; 4683c3ab96f3SFrank Blaschka priv.response_len = 0; 4684aec45e85SWenjia Zhang priv.buffer = vzalloc(oat_data.buffer_len); 4685c3ab96f3SFrank Blaschka if (!priv.buffer) { 4686c3ab96f3SFrank Blaschka rc = -ENOMEM; 4687c3ab96f3SFrank Blaschka goto out; 4688c3ab96f3SFrank Blaschka } 4689c3ab96f3SFrank Blaschka 4690c3ab96f3SFrank Blaschka iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_OAT, 4691c3ab96f3SFrank Blaschka sizeof(struct qeth_ipacmd_setadpparms_hdr) + 4692c3ab96f3SFrank Blaschka sizeof(struct qeth_query_oat)); 46931aec42bcSThomas Richter if (!iob) { 46941aec42bcSThomas Richter rc = -ENOMEM; 46951aec42bcSThomas Richter goto out_free; 46961aec42bcSThomas Richter } 4697ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 4698c3ab96f3SFrank Blaschka oat_req = &cmd->data.setadapterparms.data.query_oat; 4699c3ab96f3SFrank Blaschka oat_req->subcmd_code = oat_data.command; 4700c3ab96f3SFrank Blaschka 4701c3ab96f3SFrank Blaschka rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_query_oat_cb, 4702c3ab96f3SFrank Blaschka &priv); 4703c3ab96f3SFrank Blaschka if (!rc) { 4704c3ab96f3SFrank Blaschka if (is_compat_task()) 4705c3ab96f3SFrank Blaschka tmp = compat_ptr(oat_data.ptr); 4706c3ab96f3SFrank Blaschka else 4707c3ab96f3SFrank Blaschka tmp = (void __user *)(unsigned long)oat_data.ptr; 4708c3ab96f3SFrank Blaschka 4709c3ab96f3SFrank Blaschka if (copy_to_user(tmp, priv.buffer, 4710c3ab96f3SFrank Blaschka priv.response_len)) { 4711c3ab96f3SFrank Blaschka rc = -EFAULT; 4712c3ab96f3SFrank Blaschka goto out_free; 4713c3ab96f3SFrank Blaschka } 4714c3ab96f3SFrank Blaschka 4715c3ab96f3SFrank Blaschka oat_data.response_len = priv.response_len; 4716c3ab96f3SFrank Blaschka 4717c3ab96f3SFrank Blaschka if (copy_to_user(udata, &oat_data, 4718c3ab96f3SFrank Blaschka sizeof(struct qeth_query_oat_data))) 4719c3ab96f3SFrank Blaschka rc = -EFAULT; 47204b7ae122SJulian Wiedmann } 4721c3ab96f3SFrank Blaschka 4722c3ab96f3SFrank Blaschka out_free: 4723aec45e85SWenjia Zhang vfree(priv.buffer); 4724c3ab96f3SFrank Blaschka out: 4725c3ab96f3SFrank Blaschka return rc; 4726c3ab96f3SFrank Blaschka } 4727c3ab96f3SFrank Blaschka 4728e71e4072SHeiko Carstens static int qeth_query_card_info_cb(struct qeth_card *card, 472902d5cb5bSEugene Crosser struct qeth_reply *reply, unsigned long data) 473002d5cb5bSEugene Crosser { 4731686c97eeSJulian Wiedmann struct carrier_info *carrier_info = (struct carrier_info *)reply->param; 4732686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data; 473302d5cb5bSEugene Crosser struct qeth_query_card_info *card_info; 473402d5cb5bSEugene Crosser 473502d5cb5bSEugene Crosser QETH_CARD_TEXT(card, 2, "qcrdincb"); 4736686c97eeSJulian Wiedmann if (qeth_setadpparms_inspect_rc(cmd)) 4737686c97eeSJulian Wiedmann return 0; 4738686c97eeSJulian Wiedmann 473902d5cb5bSEugene Crosser card_info = &cmd->data.setadapterparms.data.card_info; 474002d5cb5bSEugene Crosser carrier_info->card_type = card_info->card_type; 474102d5cb5bSEugene Crosser carrier_info->port_mode = card_info->port_mode; 474202d5cb5bSEugene Crosser carrier_info->port_speed = card_info->port_speed; 474302d5cb5bSEugene Crosser return 0; 474402d5cb5bSEugene Crosser } 474502d5cb5bSEugene Crosser 4746bca51650SThomas Richter static int qeth_query_card_info(struct qeth_card *card, 474702d5cb5bSEugene Crosser struct carrier_info *carrier_info) 474802d5cb5bSEugene Crosser { 474902d5cb5bSEugene Crosser struct qeth_cmd_buffer *iob; 475002d5cb5bSEugene Crosser 475102d5cb5bSEugene Crosser QETH_CARD_TEXT(card, 2, "qcrdinfo"); 475202d5cb5bSEugene Crosser if (!qeth_adp_supported(card, IPA_SETADP_QUERY_CARD_INFO)) 475302d5cb5bSEugene Crosser return -EOPNOTSUPP; 475402d5cb5bSEugene Crosser iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_CARD_INFO, 475502d5cb5bSEugene Crosser sizeof(struct qeth_ipacmd_setadpparms_hdr)); 47561aec42bcSThomas Richter if (!iob) 47571aec42bcSThomas Richter return -ENOMEM; 475802d5cb5bSEugene Crosser return qeth_send_ipa_cmd(card, iob, qeth_query_card_info_cb, 475902d5cb5bSEugene Crosser (void *)carrier_info); 476002d5cb5bSEugene Crosser } 476102d5cb5bSEugene Crosser 4762ec61bd2fSJulian Wiedmann /** 4763ec61bd2fSJulian Wiedmann * qeth_vm_request_mac() - Request a hypervisor-managed MAC address 4764ec61bd2fSJulian Wiedmann * @card: pointer to a qeth_card 4765ec61bd2fSJulian Wiedmann * 4766ec61bd2fSJulian Wiedmann * Returns 4767ec61bd2fSJulian Wiedmann * 0, if a MAC address has been set for the card's netdevice 4768ec61bd2fSJulian Wiedmann * a return code, for various error conditions 4769ec61bd2fSJulian Wiedmann */ 4770ec61bd2fSJulian Wiedmann int qeth_vm_request_mac(struct qeth_card *card) 4771ec61bd2fSJulian Wiedmann { 4772ec61bd2fSJulian Wiedmann struct diag26c_mac_resp *response; 4773ec61bd2fSJulian Wiedmann struct diag26c_mac_req *request; 4774ec61bd2fSJulian Wiedmann struct ccw_dev_id id; 4775ec61bd2fSJulian Wiedmann int rc; 4776ec61bd2fSJulian Wiedmann 4777ec61bd2fSJulian Wiedmann QETH_DBF_TEXT(SETUP, 2, "vmreqmac"); 4778ec61bd2fSJulian Wiedmann 4779ec61bd2fSJulian Wiedmann request = kzalloc(sizeof(*request), GFP_KERNEL | GFP_DMA); 4780ec61bd2fSJulian Wiedmann response = kzalloc(sizeof(*response), GFP_KERNEL | GFP_DMA); 4781ec61bd2fSJulian Wiedmann if (!request || !response) { 4782ec61bd2fSJulian Wiedmann rc = -ENOMEM; 4783ec61bd2fSJulian Wiedmann goto out; 4784ec61bd2fSJulian Wiedmann } 4785ec61bd2fSJulian Wiedmann 478646646105SJulian Wiedmann ccw_device_get_id(CARD_DDEV(card), &id); 4787ec61bd2fSJulian Wiedmann request->resp_buf_len = sizeof(*response); 4788ec61bd2fSJulian Wiedmann request->resp_version = DIAG26C_VERSION2; 4789ec61bd2fSJulian Wiedmann request->op_code = DIAG26C_GET_MAC; 4790ec61bd2fSJulian Wiedmann request->devno = id.devno; 4791ec61bd2fSJulian Wiedmann 4792615dff22SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, request, sizeof(*request)); 4793ec61bd2fSJulian Wiedmann rc = diag26c(request, response, DIAG26C_MAC_SERVICES); 4794615dff22SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, request, sizeof(*request)); 4795ec61bd2fSJulian Wiedmann if (rc) 4796ec61bd2fSJulian Wiedmann goto out; 4797615dff22SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, response, sizeof(*response)); 4798ec61bd2fSJulian Wiedmann 4799ec61bd2fSJulian Wiedmann if (request->resp_buf_len < sizeof(*response) || 4800ec61bd2fSJulian Wiedmann response->version != request->resp_version) { 4801ec61bd2fSJulian Wiedmann rc = -EIO; 4802ec61bd2fSJulian Wiedmann QETH_DBF_TEXT(SETUP, 2, "badresp"); 4803ec61bd2fSJulian Wiedmann QETH_DBF_HEX(SETUP, 2, &request->resp_buf_len, 4804ec61bd2fSJulian Wiedmann sizeof(request->resp_buf_len)); 4805ec61bd2fSJulian Wiedmann } else if (!is_valid_ether_addr(response->mac)) { 4806ec61bd2fSJulian Wiedmann rc = -EINVAL; 4807ec61bd2fSJulian Wiedmann QETH_DBF_TEXT(SETUP, 2, "badmac"); 4808ec61bd2fSJulian Wiedmann QETH_DBF_HEX(SETUP, 2, response->mac, ETH_ALEN); 4809ec61bd2fSJulian Wiedmann } else { 4810ec61bd2fSJulian Wiedmann ether_addr_copy(card->dev->dev_addr, response->mac); 4811ec61bd2fSJulian Wiedmann } 4812ec61bd2fSJulian Wiedmann 4813ec61bd2fSJulian Wiedmann out: 4814ec61bd2fSJulian Wiedmann kfree(response); 4815ec61bd2fSJulian Wiedmann kfree(request); 4816ec61bd2fSJulian Wiedmann return rc; 4817ec61bd2fSJulian Wiedmann } 4818ec61bd2fSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_vm_request_mac); 4819ec61bd2fSJulian Wiedmann 4820cef6ff22SJulian Wiedmann static int qeth_get_qdio_q_format(struct qeth_card *card) 48214a71df50SFrank Blaschka { 4822aa59004bSJulian Wiedmann if (card->info.type == QETH_CARD_TYPE_IQD) 4823aa59004bSJulian Wiedmann return QDIO_IQDIO_QFMT; 4824aa59004bSJulian Wiedmann else 4825aa59004bSJulian Wiedmann return QDIO_QETH_QFMT; 48264a71df50SFrank Blaschka } 48274a71df50SFrank Blaschka 4828d0ff1f52SUrsula Braun static void qeth_determine_capabilities(struct qeth_card *card) 4829d0ff1f52SUrsula Braun { 4830d0ff1f52SUrsula Braun int rc; 4831d0ff1f52SUrsula Braun int length; 4832d0ff1f52SUrsula Braun char *prcd; 4833d0ff1f52SUrsula Braun struct ccw_device *ddev; 4834d0ff1f52SUrsula Braun int ddev_offline = 0; 4835d0ff1f52SUrsula Braun 4836d0ff1f52SUrsula Braun QETH_DBF_TEXT(SETUP, 2, "detcapab"); 4837d0ff1f52SUrsula Braun ddev = CARD_DDEV(card); 4838d0ff1f52SUrsula Braun if (!ddev->online) { 4839d0ff1f52SUrsula Braun ddev_offline = 1; 4840d0ff1f52SUrsula Braun rc = ccw_device_set_online(ddev); 4841d0ff1f52SUrsula Braun if (rc) { 4842d0ff1f52SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); 4843d0ff1f52SUrsula Braun goto out; 4844d0ff1f52SUrsula Braun } 4845d0ff1f52SUrsula Braun } 4846d0ff1f52SUrsula Braun 4847d0ff1f52SUrsula Braun rc = qeth_read_conf_data(card, (void **) &prcd, &length); 4848d0ff1f52SUrsula Braun if (rc) { 4849e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "qeth_read_conf_data on device %x returned %i\n", 4850e19e5be8SJulian Wiedmann CARD_DEVID(card), rc); 4851d0ff1f52SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); 4852d0ff1f52SUrsula Braun goto out_offline; 4853d0ff1f52SUrsula Braun } 4854d0ff1f52SUrsula Braun qeth_configure_unitaddr(card, prcd); 48557e665afbSUrsula Braun if (ddev_offline) 4856d0ff1f52SUrsula Braun qeth_configure_blkt_default(card, prcd); 4857d0ff1f52SUrsula Braun kfree(prcd); 4858d0ff1f52SUrsula Braun 4859d0ff1f52SUrsula Braun rc = qdio_get_ssqd_desc(ddev, &card->ssqd); 4860d0ff1f52SUrsula Braun if (rc) 4861d0ff1f52SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); 4862d0ff1f52SUrsula Braun 48630da9581dSEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "qfmt%d", card->ssqd.qfmt); 4864bbeb2414SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "ac1:%02x", card->ssqd.qdioac1); 4865bbeb2414SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "ac2:%04x", card->ssqd.qdioac2); 4866bbeb2414SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "ac3:%04x", card->ssqd.qdioac3); 48670da9581dSEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "icnt%d", card->ssqd.icnt); 48680da9581dSEinar Lueck if (!((card->ssqd.qfmt != QDIO_IQDIO_QFMT) || 48690da9581dSEinar Lueck ((card->ssqd.qdioac1 & CHSC_AC1_INITIATE_INPUTQ) == 0) || 48700da9581dSEinar Lueck ((card->ssqd.qdioac3 & CHSC_AC3_FORMAT2_CQ_AVAILABLE) == 0))) { 48710da9581dSEinar Lueck dev_info(&card->gdev->dev, 48720da9581dSEinar Lueck "Completion Queueing supported\n"); 48730da9581dSEinar Lueck } else { 48740da9581dSEinar Lueck card->options.cq = QETH_CQ_NOTAVAILABLE; 48750da9581dSEinar Lueck } 48760da9581dSEinar Lueck 48770da9581dSEinar Lueck 4878d0ff1f52SUrsula Braun out_offline: 4879d0ff1f52SUrsula Braun if (ddev_offline == 1) 4880d0ff1f52SUrsula Braun ccw_device_set_offline(ddev); 4881d0ff1f52SUrsula Braun out: 4882d0ff1f52SUrsula Braun return; 4883d0ff1f52SUrsula Braun } 4884d0ff1f52SUrsula Braun 4885cef6ff22SJulian Wiedmann static void qeth_qdio_establish_cq(struct qeth_card *card, 48860da9581dSEinar Lueck struct qdio_buffer **in_sbal_ptrs, 4887cef6ff22SJulian Wiedmann void (**queue_start_poll) 4888cef6ff22SJulian Wiedmann (struct ccw_device *, int, 4889cef6ff22SJulian Wiedmann unsigned long)) 4890cef6ff22SJulian Wiedmann { 48910da9581dSEinar Lueck int i; 48920da9581dSEinar Lueck 48930da9581dSEinar Lueck if (card->options.cq == QETH_CQ_ENABLED) { 48940da9581dSEinar Lueck int offset = QDIO_MAX_BUFFERS_PER_Q * 48950da9581dSEinar Lueck (card->qdio.no_in_queues - 1); 48960da9581dSEinar Lueck for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) { 48970da9581dSEinar Lueck in_sbal_ptrs[offset + i] = (struct qdio_buffer *) 48980da9581dSEinar Lueck virt_to_phys(card->qdio.c_q->bufs[i].buffer); 48990da9581dSEinar Lueck } 49000da9581dSEinar Lueck 49010da9581dSEinar Lueck queue_start_poll[card->qdio.no_in_queues - 1] = NULL; 49020da9581dSEinar Lueck } 49030da9581dSEinar Lueck } 49040da9581dSEinar Lueck 49054a71df50SFrank Blaschka static int qeth_qdio_establish(struct qeth_card *card) 49064a71df50SFrank Blaschka { 49074a71df50SFrank Blaschka struct qdio_initialize init_data; 49084a71df50SFrank Blaschka char *qib_param_field; 49094a71df50SFrank Blaschka struct qdio_buffer **in_sbal_ptrs; 4910104ea556Sfrank.blaschka@de.ibm.com void (**queue_start_poll) (struct ccw_device *, int, unsigned long); 49114a71df50SFrank Blaschka struct qdio_buffer **out_sbal_ptrs; 49124a71df50SFrank Blaschka int i, j, k; 49134a71df50SFrank Blaschka int rc = 0; 49144a71df50SFrank Blaschka 4915d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "qdioest"); 49164a71df50SFrank Blaschka 49176396bb22SKees Cook qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q, 49184a71df50SFrank Blaschka GFP_KERNEL); 4919104ea556Sfrank.blaschka@de.ibm.com if (!qib_param_field) { 4920104ea556Sfrank.blaschka@de.ibm.com rc = -ENOMEM; 4921104ea556Sfrank.blaschka@de.ibm.com goto out_free_nothing; 4922104ea556Sfrank.blaschka@de.ibm.com } 49234a71df50SFrank Blaschka 49244a71df50SFrank Blaschka qeth_create_qib_param_field(card, qib_param_field); 49254a71df50SFrank Blaschka qeth_create_qib_param_field_blkt(card, qib_param_field); 49264a71df50SFrank Blaschka 49276396bb22SKees Cook in_sbal_ptrs = kcalloc(card->qdio.no_in_queues * QDIO_MAX_BUFFERS_PER_Q, 49286396bb22SKees Cook sizeof(void *), 49294a71df50SFrank Blaschka GFP_KERNEL); 49304a71df50SFrank Blaschka if (!in_sbal_ptrs) { 4931104ea556Sfrank.blaschka@de.ibm.com rc = -ENOMEM; 4932104ea556Sfrank.blaschka@de.ibm.com goto out_free_qib_param; 49334a71df50SFrank Blaschka } 49340da9581dSEinar Lueck for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) { 49354a71df50SFrank Blaschka in_sbal_ptrs[i] = (struct qdio_buffer *) 49364a71df50SFrank Blaschka virt_to_phys(card->qdio.in_q->bufs[i].buffer); 49370da9581dSEinar Lueck } 49384a71df50SFrank Blaschka 49396396bb22SKees Cook queue_start_poll = kcalloc(card->qdio.no_in_queues, sizeof(void *), 49400da9581dSEinar Lueck GFP_KERNEL); 4941104ea556Sfrank.blaschka@de.ibm.com if (!queue_start_poll) { 4942104ea556Sfrank.blaschka@de.ibm.com rc = -ENOMEM; 4943104ea556Sfrank.blaschka@de.ibm.com goto out_free_in_sbals; 4944104ea556Sfrank.blaschka@de.ibm.com } 49450da9581dSEinar Lueck for (i = 0; i < card->qdio.no_in_queues; ++i) 49467bcd64ebSJulian Wiedmann queue_start_poll[i] = qeth_qdio_start_poll; 49470da9581dSEinar Lueck 49480da9581dSEinar Lueck qeth_qdio_establish_cq(card, in_sbal_ptrs, queue_start_poll); 4949104ea556Sfrank.blaschka@de.ibm.com 49504a71df50SFrank Blaschka out_sbal_ptrs = 49516396bb22SKees Cook kcalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q, 49526396bb22SKees Cook sizeof(void *), 49536396bb22SKees Cook GFP_KERNEL); 49544a71df50SFrank Blaschka if (!out_sbal_ptrs) { 4955104ea556Sfrank.blaschka@de.ibm.com rc = -ENOMEM; 4956104ea556Sfrank.blaschka@de.ibm.com goto out_free_queue_start_poll; 49574a71df50SFrank Blaschka } 49584a71df50SFrank Blaschka for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i) 49594a71df50SFrank Blaschka for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) { 49604a71df50SFrank Blaschka out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys( 49610da9581dSEinar Lueck card->qdio.out_qs[i]->bufs[j]->buffer); 49624a71df50SFrank Blaschka } 49634a71df50SFrank Blaschka 49644a71df50SFrank Blaschka memset(&init_data, 0, sizeof(struct qdio_initialize)); 49654a71df50SFrank Blaschka init_data.cdev = CARD_DDEV(card); 49664a71df50SFrank Blaschka init_data.q_format = qeth_get_qdio_q_format(card); 49674a71df50SFrank Blaschka init_data.qib_param_field_format = 0; 49684a71df50SFrank Blaschka init_data.qib_param_field = qib_param_field; 49690da9581dSEinar Lueck init_data.no_input_qs = card->qdio.no_in_queues; 49704a71df50SFrank Blaschka init_data.no_output_qs = card->qdio.no_out_queues; 49717bcd64ebSJulian Wiedmann init_data.input_handler = qeth_qdio_input_handler; 49727bcd64ebSJulian Wiedmann init_data.output_handler = qeth_qdio_output_handler; 4973e58b0d90SSteffen Maier init_data.queue_start_poll_array = queue_start_poll; 49744a71df50SFrank Blaschka init_data.int_parm = (unsigned long) card; 49754a71df50SFrank Blaschka init_data.input_sbal_addr_array = (void **) in_sbal_ptrs; 49764a71df50SFrank Blaschka init_data.output_sbal_addr_array = (void **) out_sbal_ptrs; 49770da9581dSEinar Lueck init_data.output_sbal_state_array = card->qdio.out_bufstates; 49783d6c76ffSJan Glauber init_data.scan_threshold = 49790fa81cd4SStefan Raspl (card->info.type == QETH_CARD_TYPE_IQD) ? 1 : 32; 49804a71df50SFrank Blaschka 49814a71df50SFrank Blaschka if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED, 49824a71df50SFrank Blaschka QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) { 4983cc961d40SJan Glauber rc = qdio_allocate(&init_data); 4984cc961d40SJan Glauber if (rc) { 49854a71df50SFrank Blaschka atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); 4986cc961d40SJan Glauber goto out; 49874a71df50SFrank Blaschka } 4988cc961d40SJan Glauber rc = qdio_establish(&init_data); 4989cc961d40SJan Glauber if (rc) { 4990cc961d40SJan Glauber atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); 4991cc961d40SJan Glauber qdio_free(CARD_DDEV(card)); 4992cc961d40SJan Glauber } 4993cc961d40SJan Glauber } 49940da9581dSEinar Lueck 49950da9581dSEinar Lueck switch (card->options.cq) { 49960da9581dSEinar Lueck case QETH_CQ_ENABLED: 49970da9581dSEinar Lueck dev_info(&card->gdev->dev, "Completion Queue support enabled"); 49980da9581dSEinar Lueck break; 49990da9581dSEinar Lueck case QETH_CQ_DISABLED: 50000da9581dSEinar Lueck dev_info(&card->gdev->dev, "Completion Queue support disabled"); 50010da9581dSEinar Lueck break; 50020da9581dSEinar Lueck default: 50030da9581dSEinar Lueck break; 50040da9581dSEinar Lueck } 5005cc961d40SJan Glauber out: 50064a71df50SFrank Blaschka kfree(out_sbal_ptrs); 5007104ea556Sfrank.blaschka@de.ibm.com out_free_queue_start_poll: 5008104ea556Sfrank.blaschka@de.ibm.com kfree(queue_start_poll); 5009104ea556Sfrank.blaschka@de.ibm.com out_free_in_sbals: 50104a71df50SFrank Blaschka kfree(in_sbal_ptrs); 5011104ea556Sfrank.blaschka@de.ibm.com out_free_qib_param: 50124a71df50SFrank Blaschka kfree(qib_param_field); 5013104ea556Sfrank.blaschka@de.ibm.com out_free_nothing: 50144a71df50SFrank Blaschka return rc; 50154a71df50SFrank Blaschka } 50164a71df50SFrank Blaschka 50174a71df50SFrank Blaschka static void qeth_core_free_card(struct qeth_card *card) 50184a71df50SFrank Blaschka { 5019d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "freecrd"); 5020d11ba0c4SPeter Tiedemann QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); 50214a71df50SFrank Blaschka qeth_clean_channel(&card->read); 50224a71df50SFrank Blaschka qeth_clean_channel(&card->write); 5023f15cdaf2SJulian Wiedmann qeth_clean_channel(&card->data); 5024c0a2e4d1SJulian Wiedmann destroy_workqueue(card->event_wq); 50254a71df50SFrank Blaschka qeth_free_qdio_buffers(card); 50266bcac508SMartin Schwidefsky unregister_service_level(&card->qeth_service_level); 5027a2eb0ad5SJulian Wiedmann dev_set_drvdata(&card->gdev->dev, NULL); 50284a71df50SFrank Blaschka kfree(card); 50294a71df50SFrank Blaschka } 50304a71df50SFrank Blaschka 5031395672e0SStefan Raspl void qeth_trace_features(struct qeth_card *card) 5032395672e0SStefan Raspl { 5033395672e0SStefan Raspl QETH_CARD_TEXT(card, 2, "features"); 50344d7def2aSThomas Richter QETH_CARD_HEX(card, 2, &card->options.ipa4, sizeof(card->options.ipa4)); 50354d7def2aSThomas Richter QETH_CARD_HEX(card, 2, &card->options.ipa6, sizeof(card->options.ipa6)); 50364d7def2aSThomas Richter QETH_CARD_HEX(card, 2, &card->options.adp, sizeof(card->options.adp)); 50374d7def2aSThomas Richter QETH_CARD_HEX(card, 2, &card->info.diagass_support, 50384d7def2aSThomas Richter sizeof(card->info.diagass_support)); 5039395672e0SStefan Raspl } 5040395672e0SStefan Raspl EXPORT_SYMBOL_GPL(qeth_trace_features); 5041395672e0SStefan Raspl 50424a71df50SFrank Blaschka static struct ccw_device_id qeth_ids[] = { 50435113fec0SUrsula Braun {CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01), 50445113fec0SUrsula Braun .driver_info = QETH_CARD_TYPE_OSD}, 50455113fec0SUrsula Braun {CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05), 50465113fec0SUrsula Braun .driver_info = QETH_CARD_TYPE_IQD}, 50475113fec0SUrsula Braun {CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06), 50485113fec0SUrsula Braun .driver_info = QETH_CARD_TYPE_OSN}, 50495113fec0SUrsula Braun {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03), 50505113fec0SUrsula Braun .driver_info = QETH_CARD_TYPE_OSM}, 50515113fec0SUrsula Braun {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02), 50525113fec0SUrsula Braun .driver_info = QETH_CARD_TYPE_OSX}, 50534a71df50SFrank Blaschka {}, 50544a71df50SFrank Blaschka }; 50554a71df50SFrank Blaschka MODULE_DEVICE_TABLE(ccw, qeth_ids); 50564a71df50SFrank Blaschka 50574a71df50SFrank Blaschka static struct ccw_driver qeth_ccw_driver = { 50583bda058bSSebastian Ott .driver = { 50593e70b3b8SSebastian Ott .owner = THIS_MODULE, 50604a71df50SFrank Blaschka .name = "qeth", 50613bda058bSSebastian Ott }, 50624a71df50SFrank Blaschka .ids = qeth_ids, 50634a71df50SFrank Blaschka .probe = ccwgroup_probe_ccwdev, 50644a71df50SFrank Blaschka .remove = ccwgroup_remove_ccwdev, 50654a71df50SFrank Blaschka }; 50664a71df50SFrank Blaschka 50679fae5c3bSJulian Wiedmann int qeth_core_hardsetup_card(struct qeth_card *card, bool *carrier_ok) 50684a71df50SFrank Blaschka { 50696ebb7f8dSStefan Raspl int retries = 3; 50704a71df50SFrank Blaschka int rc; 50714a71df50SFrank Blaschka 5072d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "hrdsetup"); 50734a71df50SFrank Blaschka atomic_set(&card->force_alloc_skb, 0); 5074725b9c04SSebastian Ott qeth_update_from_chp_desc(card); 50754a71df50SFrank Blaschka retry: 50766ebb7f8dSStefan Raspl if (retries < 3) 5077e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "Retrying to do IDX activates on device %x.\n", 5078e19e5be8SJulian Wiedmann CARD_DEVID(card)); 507922ae2790SUrsula Braun rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD); 50804a71df50SFrank Blaschka ccw_device_set_offline(CARD_DDEV(card)); 50814a71df50SFrank Blaschka ccw_device_set_offline(CARD_WDEV(card)); 50824a71df50SFrank Blaschka ccw_device_set_offline(CARD_RDEV(card)); 508322ae2790SUrsula Braun qdio_free(CARD_DDEV(card)); 5084aa909224SUrsula Braun rc = ccw_device_set_online(CARD_RDEV(card)); 5085aa909224SUrsula Braun if (rc) 5086aa909224SUrsula Braun goto retriable; 5087aa909224SUrsula Braun rc = ccw_device_set_online(CARD_WDEV(card)); 5088aa909224SUrsula Braun if (rc) 5089aa909224SUrsula Braun goto retriable; 5090aa909224SUrsula Braun rc = ccw_device_set_online(CARD_DDEV(card)); 5091aa909224SUrsula Braun if (rc) 5092aa909224SUrsula Braun goto retriable; 5093aa909224SUrsula Braun retriable: 50944a71df50SFrank Blaschka if (rc == -ERESTARTSYS) { 5095d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "break1"); 50964a71df50SFrank Blaschka return rc; 50974a71df50SFrank Blaschka } else if (rc) { 5098d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 50996ebb7f8dSStefan Raspl if (--retries < 0) 51004a71df50SFrank Blaschka goto out; 51014a71df50SFrank Blaschka else 51024a71df50SFrank Blaschka goto retry; 51034a71df50SFrank Blaschka } 5104d0ff1f52SUrsula Braun qeth_determine_capabilities(card); 51054a71df50SFrank Blaschka qeth_init_tokens(card); 51064a71df50SFrank Blaschka qeth_init_func_level(card); 51078d908eb0SJulian Wiedmann rc = qeth_idx_activate_channel(card, &card->read, qeth_idx_read_cb); 51084a71df50SFrank Blaschka if (rc == -ERESTARTSYS) { 5109d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "break2"); 51104a71df50SFrank Blaschka return rc; 51114a71df50SFrank Blaschka } else if (rc) { 5112d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); 51134a71df50SFrank Blaschka if (--retries < 0) 51144a71df50SFrank Blaschka goto out; 51154a71df50SFrank Blaschka else 51164a71df50SFrank Blaschka goto retry; 51174a71df50SFrank Blaschka } 51188d908eb0SJulian Wiedmann rc = qeth_idx_activate_channel(card, &card->write, qeth_idx_write_cb); 51194a71df50SFrank Blaschka if (rc == -ERESTARTSYS) { 5120d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "break3"); 51214a71df50SFrank Blaschka return rc; 51224a71df50SFrank Blaschka } else if (rc) { 5123d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); 51244a71df50SFrank Blaschka if (--retries < 0) 51254a71df50SFrank Blaschka goto out; 51264a71df50SFrank Blaschka else 51274a71df50SFrank Blaschka goto retry; 51284a71df50SFrank Blaschka } 5129908abbb5SUrsula Braun card->read_or_write_problem = 0; 51304a71df50SFrank Blaschka rc = qeth_mpc_initialize(card); 51314a71df50SFrank Blaschka if (rc) { 5132d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); 51334a71df50SFrank Blaschka goto out; 51344a71df50SFrank Blaschka } 51351da74b1cSFrank Blaschka 513610340510SJulian Wiedmann rc = qeth_send_startlan(card); 513710340510SJulian Wiedmann if (rc) { 513810340510SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); 51394b7ae122SJulian Wiedmann if (rc == -ENETDOWN) { 51404b7ae122SJulian Wiedmann dev_warn(&card->gdev->dev, "The LAN is offline\n"); 51419fae5c3bSJulian Wiedmann *carrier_ok = false; 514210340510SJulian Wiedmann } else { 514310340510SJulian Wiedmann goto out; 514410340510SJulian Wiedmann } 514591cc98f5SJulian Wiedmann } else { 51469fae5c3bSJulian Wiedmann *carrier_ok = true; 51479fae5c3bSJulian Wiedmann } 51489fae5c3bSJulian Wiedmann 51491da74b1cSFrank Blaschka card->options.ipa4.supported_funcs = 0; 51504d7def2aSThomas Richter card->options.ipa6.supported_funcs = 0; 51511da74b1cSFrank Blaschka card->options.adp.supported_funcs = 0; 5152b4d72c08SEugene Crosser card->options.sbp.supported_funcs = 0; 51531da74b1cSFrank Blaschka card->info.diagass_support = 0; 51541aec42bcSThomas Richter rc = qeth_query_ipassists(card, QETH_PROT_IPV4); 51551aec42bcSThomas Richter if (rc == -ENOMEM) 51561aec42bcSThomas Richter goto out; 5157ee75fb86SKittipon Meesompop if (qeth_is_supported(card, IPA_IPV6)) { 5158ee75fb86SKittipon Meesompop rc = qeth_query_ipassists(card, QETH_PROT_IPV6); 5159ee75fb86SKittipon Meesompop if (rc == -ENOMEM) 5160ee75fb86SKittipon Meesompop goto out; 5161ee75fb86SKittipon Meesompop } 51621aec42bcSThomas Richter if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) { 51631aec42bcSThomas Richter rc = qeth_query_setadapterparms(card); 51641aec42bcSThomas Richter if (rc < 0) { 516510340510SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc); 51661aec42bcSThomas Richter goto out; 51671aec42bcSThomas Richter } 51681aec42bcSThomas Richter } 51691aec42bcSThomas Richter if (qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) { 51701aec42bcSThomas Richter rc = qeth_query_setdiagass(card); 51711aec42bcSThomas Richter if (rc < 0) { 517210340510SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc); 51731aec42bcSThomas Richter goto out; 51741aec42bcSThomas Richter } 51751aec42bcSThomas Richter } 51764a71df50SFrank Blaschka return 0; 51774a71df50SFrank Blaschka out: 517874eacdb9SFrank Blaschka dev_warn(&card->gdev->dev, "The qeth device driver failed to recover " 517974eacdb9SFrank Blaschka "an error on the device\n"); 5180e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "Initialization for device %x failed in hardsetup! rc=%d\n", 5181e19e5be8SJulian Wiedmann CARD_DEVID(card), rc); 51824a71df50SFrank Blaschka return rc; 51834a71df50SFrank Blaschka } 51844a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card); 51854a71df50SFrank Blaschka 51868d68af6aSJulian Wiedmann static void qeth_create_skb_frag(struct qdio_buffer_element *element, 51878d68af6aSJulian Wiedmann struct sk_buff *skb, int offset, int data_len) 51884a71df50SFrank Blaschka { 51894a71df50SFrank Blaschka struct page *page = virt_to_page(element->addr); 5190b6f72f96SJulian Wiedmann unsigned int next_frag; 5191b6f72f96SJulian Wiedmann 51928d68af6aSJulian Wiedmann /* first fill the linear space */ 51938d68af6aSJulian Wiedmann if (!skb->len) { 51948d68af6aSJulian Wiedmann unsigned int linear = min(data_len, skb_tailroom(skb)); 5195b3332930SFrank Blaschka 51968d68af6aSJulian Wiedmann skb_put_data(skb, element->addr + offset, linear); 51978d68af6aSJulian Wiedmann data_len -= linear; 51988d68af6aSJulian Wiedmann if (!data_len) 51998d68af6aSJulian Wiedmann return; 52008d68af6aSJulian Wiedmann offset += linear; 5201b6f72f96SJulian Wiedmann /* fall through to add page frag for remaining data */ 52024a71df50SFrank Blaschka } 52034a71df50SFrank Blaschka 52048d68af6aSJulian Wiedmann next_frag = skb_shinfo(skb)->nr_frags; 52054a71df50SFrank Blaschka get_page(page); 52068d68af6aSJulian Wiedmann skb_add_rx_frag(skb, next_frag, page, offset, data_len, data_len); 52074a71df50SFrank Blaschka } 52084a71df50SFrank Blaschka 5209bca51650SThomas Richter static inline int qeth_is_last_sbale(struct qdio_buffer_element *sbale) 5210bca51650SThomas Richter { 5211bca51650SThomas Richter return (sbale->eflags & SBAL_EFLAGS_LAST_ENTRY); 5212bca51650SThomas Richter } 5213bca51650SThomas Richter 52144a71df50SFrank Blaschka struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card, 5215b3332930SFrank Blaschka struct qeth_qdio_buffer *qethbuffer, 52164a71df50SFrank Blaschka struct qdio_buffer_element **__element, int *__offset, 52174a71df50SFrank Blaschka struct qeth_hdr **hdr) 52184a71df50SFrank Blaschka { 52194a71df50SFrank Blaschka struct qdio_buffer_element *element = *__element; 5220b3332930SFrank Blaschka struct qdio_buffer *buffer = qethbuffer->buffer; 52214a71df50SFrank Blaschka int offset = *__offset; 52228d68af6aSJulian Wiedmann struct sk_buff *skb; 522376b11f8eSUrsula Braun int skb_len = 0; 52244a71df50SFrank Blaschka void *data_ptr; 52254a71df50SFrank Blaschka int data_len; 52264a71df50SFrank Blaschka int headroom = 0; 52274a71df50SFrank Blaschka int use_rx_sg = 0; 52284a71df50SFrank Blaschka 52294a71df50SFrank Blaschka /* qeth_hdr must not cross element boundaries */ 5230864c17c3SJulian Wiedmann while (element->length < offset + sizeof(struct qeth_hdr)) { 52314a71df50SFrank Blaschka if (qeth_is_last_sbale(element)) 52324a71df50SFrank Blaschka return NULL; 52334a71df50SFrank Blaschka element++; 52344a71df50SFrank Blaschka offset = 0; 52354a71df50SFrank Blaschka } 52364a71df50SFrank Blaschka *hdr = element->addr + offset; 52374a71df50SFrank Blaschka 52384a71df50SFrank Blaschka offset += sizeof(struct qeth_hdr); 523976b11f8eSUrsula Braun switch ((*hdr)->hdr.l2.id) { 524076b11f8eSUrsula Braun case QETH_HEADER_TYPE_LAYER2: 52414a71df50SFrank Blaschka skb_len = (*hdr)->hdr.l2.pkt_length; 524276b11f8eSUrsula Braun break; 524376b11f8eSUrsula Braun case QETH_HEADER_TYPE_LAYER3: 52444a71df50SFrank Blaschka skb_len = (*hdr)->hdr.l3.length; 5245b403e685SFrank Blaschka headroom = ETH_HLEN; 524676b11f8eSUrsula Braun break; 524776b11f8eSUrsula Braun case QETH_HEADER_TYPE_OSN: 524876b11f8eSUrsula Braun skb_len = (*hdr)->hdr.osn.pdu_length; 524976b11f8eSUrsula Braun headroom = sizeof(struct qeth_hdr); 525076b11f8eSUrsula Braun break; 525176b11f8eSUrsula Braun default: 525276b11f8eSUrsula Braun break; 52534a71df50SFrank Blaschka } 52544a71df50SFrank Blaschka 52554a71df50SFrank Blaschka if (!skb_len) 52564a71df50SFrank Blaschka return NULL; 52574a71df50SFrank Blaschka 5258b3332930SFrank Blaschka if (((skb_len >= card->options.rx_sg_cb) && 52594a71df50SFrank Blaschka (!(card->info.type == QETH_CARD_TYPE_OSN)) && 5260b3332930SFrank Blaschka (!atomic_read(&card->force_alloc_skb))) || 52618d68af6aSJulian Wiedmann (card->options.cq == QETH_CQ_ENABLED)) 52624a71df50SFrank Blaschka use_rx_sg = 1; 52638d68af6aSJulian Wiedmann 52648d68af6aSJulian Wiedmann if (use_rx_sg && qethbuffer->rx_skb) { 52658d68af6aSJulian Wiedmann /* QETH_CQ_ENABLED only: */ 52668d68af6aSJulian Wiedmann skb = qethbuffer->rx_skb; 52678d68af6aSJulian Wiedmann qethbuffer->rx_skb = NULL; 52684a71df50SFrank Blaschka } else { 52698d68af6aSJulian Wiedmann unsigned int linear = (use_rx_sg) ? QETH_RX_PULL_LEN : skb_len; 52708d68af6aSJulian Wiedmann 527137cf05d2SJulian Wiedmann skb = napi_alloc_skb(&card->napi, linear + headroom); 52728d68af6aSJulian Wiedmann } 52734a71df50SFrank Blaschka if (!skb) 52744a71df50SFrank Blaschka goto no_mem; 52754a71df50SFrank Blaschka if (headroom) 52764a71df50SFrank Blaschka skb_reserve(skb, headroom); 52774a71df50SFrank Blaschka 52784a71df50SFrank Blaschka data_ptr = element->addr + offset; 52794a71df50SFrank Blaschka while (skb_len) { 52804a71df50SFrank Blaschka data_len = min(skb_len, (int)(element->length - offset)); 52814a71df50SFrank Blaschka if (data_len) { 52828d68af6aSJulian Wiedmann if (use_rx_sg) 52838d68af6aSJulian Wiedmann qeth_create_skb_frag(element, skb, offset, 52848d68af6aSJulian Wiedmann data_len); 52858d68af6aSJulian Wiedmann else 528659ae1d12SJohannes Berg skb_put_data(skb, data_ptr, data_len); 52874a71df50SFrank Blaschka } 52884a71df50SFrank Blaschka skb_len -= data_len; 52894a71df50SFrank Blaschka if (skb_len) { 52904a71df50SFrank Blaschka if (qeth_is_last_sbale(element)) { 5291847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "unexeob"); 5292efd5d9a4SCarsten Otte QETH_CARD_HEX(card, 2, buffer, sizeof(void *)); 52934a71df50SFrank Blaschka dev_kfree_skb_any(skb); 52944a71df50SFrank Blaschka card->stats.rx_errors++; 52954a71df50SFrank Blaschka return NULL; 52964a71df50SFrank Blaschka } 52974a71df50SFrank Blaschka element++; 52984a71df50SFrank Blaschka offset = 0; 52994a71df50SFrank Blaschka data_ptr = element->addr; 53004a71df50SFrank Blaschka } else { 53014a71df50SFrank Blaschka offset += data_len; 53024a71df50SFrank Blaschka } 53034a71df50SFrank Blaschka } 53044a71df50SFrank Blaschka *__element = element; 53054a71df50SFrank Blaschka *__offset = offset; 53064a71df50SFrank Blaschka if (use_rx_sg && card->options.performance_stats) { 53074a71df50SFrank Blaschka card->perf_stats.sg_skbs_rx++; 53084a71df50SFrank Blaschka card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags; 53094a71df50SFrank Blaschka } 53104a71df50SFrank Blaschka return skb; 53114a71df50SFrank Blaschka no_mem: 53124a71df50SFrank Blaschka if (net_ratelimit()) { 5313847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "noskbmem"); 53144a71df50SFrank Blaschka } 53154a71df50SFrank Blaschka card->stats.rx_dropped++; 53164a71df50SFrank Blaschka return NULL; 53174a71df50SFrank Blaschka } 53184a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_core_get_next_skb); 53194a71df50SFrank Blaschka 5320d73ef324SJulian Wiedmann int qeth_poll(struct napi_struct *napi, int budget) 5321d73ef324SJulian Wiedmann { 5322d73ef324SJulian Wiedmann struct qeth_card *card = container_of(napi, struct qeth_card, napi); 5323d73ef324SJulian Wiedmann int work_done = 0; 5324d73ef324SJulian Wiedmann struct qeth_qdio_buffer *buffer; 5325d73ef324SJulian Wiedmann int done; 5326d73ef324SJulian Wiedmann int new_budget = budget; 5327d73ef324SJulian Wiedmann 5328d73ef324SJulian Wiedmann if (card->options.performance_stats) { 5329d73ef324SJulian Wiedmann card->perf_stats.inbound_cnt++; 5330d73ef324SJulian Wiedmann card->perf_stats.inbound_start_time = qeth_get_micros(); 5331d73ef324SJulian Wiedmann } 5332d73ef324SJulian Wiedmann 5333d73ef324SJulian Wiedmann while (1) { 5334d73ef324SJulian Wiedmann if (!card->rx.b_count) { 5335d73ef324SJulian Wiedmann card->rx.qdio_err = 0; 5336d73ef324SJulian Wiedmann card->rx.b_count = qdio_get_next_buffers( 5337d73ef324SJulian Wiedmann card->data.ccwdev, 0, &card->rx.b_index, 5338d73ef324SJulian Wiedmann &card->rx.qdio_err); 5339d73ef324SJulian Wiedmann if (card->rx.b_count <= 0) { 5340d73ef324SJulian Wiedmann card->rx.b_count = 0; 5341d73ef324SJulian Wiedmann break; 5342d73ef324SJulian Wiedmann } 5343d73ef324SJulian Wiedmann card->rx.b_element = 5344d73ef324SJulian Wiedmann &card->qdio.in_q->bufs[card->rx.b_index] 5345d73ef324SJulian Wiedmann .buffer->element[0]; 5346d73ef324SJulian Wiedmann card->rx.e_offset = 0; 5347d73ef324SJulian Wiedmann } 5348d73ef324SJulian Wiedmann 5349d73ef324SJulian Wiedmann while (card->rx.b_count) { 5350d73ef324SJulian Wiedmann buffer = &card->qdio.in_q->bufs[card->rx.b_index]; 5351d73ef324SJulian Wiedmann if (!(card->rx.qdio_err && 5352d73ef324SJulian Wiedmann qeth_check_qdio_errors(card, buffer->buffer, 5353d73ef324SJulian Wiedmann card->rx.qdio_err, "qinerr"))) 5354d73ef324SJulian Wiedmann work_done += 5355d73ef324SJulian Wiedmann card->discipline->process_rx_buffer( 5356d73ef324SJulian Wiedmann card, new_budget, &done); 5357d73ef324SJulian Wiedmann else 5358d73ef324SJulian Wiedmann done = 1; 5359d73ef324SJulian Wiedmann 5360d73ef324SJulian Wiedmann if (done) { 5361d73ef324SJulian Wiedmann if (card->options.performance_stats) 5362d73ef324SJulian Wiedmann card->perf_stats.bufs_rec++; 5363d73ef324SJulian Wiedmann qeth_put_buffer_pool_entry(card, 5364d73ef324SJulian Wiedmann buffer->pool_entry); 5365d73ef324SJulian Wiedmann qeth_queue_input_buffer(card, card->rx.b_index); 5366d73ef324SJulian Wiedmann card->rx.b_count--; 5367d73ef324SJulian Wiedmann if (card->rx.b_count) { 5368d73ef324SJulian Wiedmann card->rx.b_index = 5369d73ef324SJulian Wiedmann (card->rx.b_index + 1) % 5370d73ef324SJulian Wiedmann QDIO_MAX_BUFFERS_PER_Q; 5371d73ef324SJulian Wiedmann card->rx.b_element = 5372d73ef324SJulian Wiedmann &card->qdio.in_q 5373d73ef324SJulian Wiedmann ->bufs[card->rx.b_index] 5374d73ef324SJulian Wiedmann .buffer->element[0]; 5375d73ef324SJulian Wiedmann card->rx.e_offset = 0; 5376d73ef324SJulian Wiedmann } 5377d73ef324SJulian Wiedmann } 5378d73ef324SJulian Wiedmann 5379d73ef324SJulian Wiedmann if (work_done >= budget) 5380d73ef324SJulian Wiedmann goto out; 5381d73ef324SJulian Wiedmann else 5382d73ef324SJulian Wiedmann new_budget = budget - work_done; 5383d73ef324SJulian Wiedmann } 5384d73ef324SJulian Wiedmann } 5385d73ef324SJulian Wiedmann 5386978759e8SJulian Wiedmann napi_complete_done(napi, work_done); 5387d73ef324SJulian Wiedmann if (qdio_start_irq(card->data.ccwdev, 0)) 5388d73ef324SJulian Wiedmann napi_schedule(&card->napi); 5389d73ef324SJulian Wiedmann out: 5390d73ef324SJulian Wiedmann if (card->options.performance_stats) 5391d73ef324SJulian Wiedmann card->perf_stats.inbound_time += qeth_get_micros() - 5392d73ef324SJulian Wiedmann card->perf_stats.inbound_start_time; 5393d73ef324SJulian Wiedmann return work_done; 5394d73ef324SJulian Wiedmann } 5395d73ef324SJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_poll); 5396d73ef324SJulian Wiedmann 5397ad3cbf61SJulian Wiedmann static int qeth_setassparms_inspect_rc(struct qeth_ipa_cmd *cmd) 5398ad3cbf61SJulian Wiedmann { 5399ad3cbf61SJulian Wiedmann if (!cmd->hdr.return_code) 5400ad3cbf61SJulian Wiedmann cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code; 5401ad3cbf61SJulian Wiedmann return cmd->hdr.return_code; 5402ad3cbf61SJulian Wiedmann } 5403ad3cbf61SJulian Wiedmann 54044666d7fbSJulian Wiedmann static int qeth_setassparms_get_caps_cb(struct qeth_card *card, 54054666d7fbSJulian Wiedmann struct qeth_reply *reply, 54064666d7fbSJulian Wiedmann unsigned long data) 54074666d7fbSJulian Wiedmann { 54084666d7fbSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 54094666d7fbSJulian Wiedmann struct qeth_ipa_caps *caps = reply->param; 54104666d7fbSJulian Wiedmann 54114666d7fbSJulian Wiedmann if (qeth_setassparms_inspect_rc(cmd)) 54124666d7fbSJulian Wiedmann return 0; 54134666d7fbSJulian Wiedmann 54144666d7fbSJulian Wiedmann caps->supported = cmd->data.setassparms.data.caps.supported; 54154666d7fbSJulian Wiedmann caps->enabled = cmd->data.setassparms.data.caps.enabled; 54164666d7fbSJulian Wiedmann return 0; 54174666d7fbSJulian Wiedmann } 54184666d7fbSJulian Wiedmann 54198f43fb00SThomas Richter int qeth_setassparms_cb(struct qeth_card *card, 54204d7def2aSThomas Richter struct qeth_reply *reply, unsigned long data) 54214d7def2aSThomas Richter { 54224d7def2aSThomas Richter struct qeth_ipa_cmd *cmd; 54234d7def2aSThomas Richter 54244d7def2aSThomas Richter QETH_CARD_TEXT(card, 4, "defadpcb"); 54254d7def2aSThomas Richter 54264d7def2aSThomas Richter cmd = (struct qeth_ipa_cmd *) data; 54274d7def2aSThomas Richter if (cmd->hdr.return_code == 0) { 54284d7def2aSThomas Richter cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code; 54294d7def2aSThomas Richter if (cmd->hdr.prot_version == QETH_PROT_IPV4) 54304d7def2aSThomas Richter card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled; 54314d7def2aSThomas Richter if (cmd->hdr.prot_version == QETH_PROT_IPV6) 54324d7def2aSThomas Richter card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled; 54334d7def2aSThomas Richter } 54344d7def2aSThomas Richter return 0; 54354d7def2aSThomas Richter } 54368f43fb00SThomas Richter EXPORT_SYMBOL_GPL(qeth_setassparms_cb); 54374d7def2aSThomas Richter 5438b475e316SThomas Richter struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *card, 54394d7def2aSThomas Richter enum qeth_ipa_funcs ipa_func, 54404d7def2aSThomas Richter __u16 cmd_code, __u16 len, 54414d7def2aSThomas Richter enum qeth_prot_versions prot) 54424d7def2aSThomas Richter { 54434d7def2aSThomas Richter struct qeth_cmd_buffer *iob; 54444d7def2aSThomas Richter struct qeth_ipa_cmd *cmd; 54454d7def2aSThomas Richter 54464d7def2aSThomas Richter QETH_CARD_TEXT(card, 4, "getasscm"); 54474d7def2aSThomas Richter iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot); 54484d7def2aSThomas Richter 54494d7def2aSThomas Richter if (iob) { 5450ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 54514d7def2aSThomas Richter cmd->data.setassparms.hdr.assist_no = ipa_func; 54524d7def2aSThomas Richter cmd->data.setassparms.hdr.length = 8 + len; 54534d7def2aSThomas Richter cmd->data.setassparms.hdr.command_code = cmd_code; 54544d7def2aSThomas Richter } 54554d7def2aSThomas Richter 54564d7def2aSThomas Richter return iob; 54574d7def2aSThomas Richter } 5458b475e316SThomas Richter EXPORT_SYMBOL_GPL(qeth_get_setassparms_cmd); 54594d7def2aSThomas Richter 5460a8155b00SKittipon Meesompop int qeth_send_simple_setassparms_prot(struct qeth_card *card, 54614d7def2aSThomas Richter enum qeth_ipa_funcs ipa_func, 5462a8155b00SKittipon Meesompop u16 cmd_code, long data, 5463a8155b00SKittipon Meesompop enum qeth_prot_versions prot) 54644d7def2aSThomas Richter { 54654d7def2aSThomas Richter int length = 0; 54664d7def2aSThomas Richter struct qeth_cmd_buffer *iob; 54674d7def2aSThomas Richter 5468a8155b00SKittipon Meesompop QETH_CARD_TEXT_(card, 4, "simassp%i", prot); 54694d7def2aSThomas Richter if (data) 54704d7def2aSThomas Richter length = sizeof(__u32); 5471a8155b00SKittipon Meesompop iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code, length, prot); 54724d7def2aSThomas Richter if (!iob) 54734d7def2aSThomas Richter return -ENOMEM; 54744fa55fa9SJulian Wiedmann 54754fa55fa9SJulian Wiedmann __ipa_cmd(iob)->data.setassparms.data.flags_32bit = (__u32) data; 54764fa55fa9SJulian Wiedmann return qeth_send_ipa_cmd(card, iob, qeth_setassparms_cb, NULL); 54774d7def2aSThomas Richter } 5478a8155b00SKittipon Meesompop EXPORT_SYMBOL_GPL(qeth_send_simple_setassparms_prot); 54794d7def2aSThomas Richter 54804a71df50SFrank Blaschka static void qeth_unregister_dbf_views(void) 54814a71df50SFrank Blaschka { 5482d11ba0c4SPeter Tiedemann int x; 5483d11ba0c4SPeter Tiedemann for (x = 0; x < QETH_DBF_INFOS; x++) { 5484d11ba0c4SPeter Tiedemann debug_unregister(qeth_dbf[x].id); 5485d11ba0c4SPeter Tiedemann qeth_dbf[x].id = NULL; 5486d11ba0c4SPeter Tiedemann } 54874a71df50SFrank Blaschka } 54884a71df50SFrank Blaschka 54898e96c51cSCarsten Otte void qeth_dbf_longtext(debug_info_t *id, int level, char *fmt, ...) 5490cd023216SPeter Tiedemann { 5491cd023216SPeter Tiedemann char dbf_txt_buf[32]; 5492345aa66eSPeter Tiedemann va_list args; 5493cd023216SPeter Tiedemann 54948e6a8285SHendrik Brueckner if (!debug_level_enabled(id, level)) 5495cd023216SPeter Tiedemann return; 5496345aa66eSPeter Tiedemann va_start(args, fmt); 5497345aa66eSPeter Tiedemann vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args); 5498345aa66eSPeter Tiedemann va_end(args); 54998e96c51cSCarsten Otte debug_text_event(id, level, dbf_txt_buf); 5500cd023216SPeter Tiedemann } 5501cd023216SPeter Tiedemann EXPORT_SYMBOL_GPL(qeth_dbf_longtext); 5502cd023216SPeter Tiedemann 55034a71df50SFrank Blaschka static int qeth_register_dbf_views(void) 55044a71df50SFrank Blaschka { 5505d11ba0c4SPeter Tiedemann int ret; 5506d11ba0c4SPeter Tiedemann int x; 55074a71df50SFrank Blaschka 5508d11ba0c4SPeter Tiedemann for (x = 0; x < QETH_DBF_INFOS; x++) { 5509d11ba0c4SPeter Tiedemann /* register the areas */ 5510d11ba0c4SPeter Tiedemann qeth_dbf[x].id = debug_register(qeth_dbf[x].name, 5511d11ba0c4SPeter Tiedemann qeth_dbf[x].pages, 5512d11ba0c4SPeter Tiedemann qeth_dbf[x].areas, 5513d11ba0c4SPeter Tiedemann qeth_dbf[x].len); 5514d11ba0c4SPeter Tiedemann if (qeth_dbf[x].id == NULL) { 55154a71df50SFrank Blaschka qeth_unregister_dbf_views(); 55164a71df50SFrank Blaschka return -ENOMEM; 55174a71df50SFrank Blaschka } 55184a71df50SFrank Blaschka 5519d11ba0c4SPeter Tiedemann /* register a view */ 5520d11ba0c4SPeter Tiedemann ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view); 5521d11ba0c4SPeter Tiedemann if (ret) { 5522d11ba0c4SPeter Tiedemann qeth_unregister_dbf_views(); 5523d11ba0c4SPeter Tiedemann return ret; 5524d11ba0c4SPeter Tiedemann } 55254a71df50SFrank Blaschka 5526d11ba0c4SPeter Tiedemann /* set a passing level */ 5527d11ba0c4SPeter Tiedemann debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level); 5528d11ba0c4SPeter Tiedemann } 55294a71df50SFrank Blaschka 55304a71df50SFrank Blaschka return 0; 55314a71df50SFrank Blaschka } 55324a71df50SFrank Blaschka 5533a70fee3bSJulian Wiedmann static DEFINE_MUTEX(qeth_mod_mutex); /* for synchronized module loading */ 5534a70fee3bSJulian Wiedmann 55354a71df50SFrank Blaschka int qeth_core_load_discipline(struct qeth_card *card, 55364a71df50SFrank Blaschka enum qeth_discipline_id discipline) 55374a71df50SFrank Blaschka { 55382022e00cSFrank Blaschka mutex_lock(&qeth_mod_mutex); 55394a71df50SFrank Blaschka switch (discipline) { 55404a71df50SFrank Blaschka case QETH_DISCIPLINE_LAYER3: 5541c041f2d4SSebastian Ott card->discipline = try_then_request_module( 5542c041f2d4SSebastian Ott symbol_get(qeth_l3_discipline), "qeth_l3"); 55434a71df50SFrank Blaschka break; 55444a71df50SFrank Blaschka case QETH_DISCIPLINE_LAYER2: 5545c041f2d4SSebastian Ott card->discipline = try_then_request_module( 5546c041f2d4SSebastian Ott symbol_get(qeth_l2_discipline), "qeth_l2"); 55474a71df50SFrank Blaschka break; 5548c70eb09dSJulian Wiedmann default: 5549c70eb09dSJulian Wiedmann break; 55504a71df50SFrank Blaschka } 5551a70fee3bSJulian Wiedmann mutex_unlock(&qeth_mod_mutex); 5552c70eb09dSJulian Wiedmann 5553c041f2d4SSebastian Ott if (!card->discipline) { 555474eacdb9SFrank Blaschka dev_err(&card->gdev->dev, "There is no kernel module to " 555574eacdb9SFrank Blaschka "support discipline %d\n", discipline); 5556a70fee3bSJulian Wiedmann return -EINVAL; 55574a71df50SFrank Blaschka } 5558a70fee3bSJulian Wiedmann 5559c1a935f6SJulian Wiedmann card->options.layer = discipline; 5560a70fee3bSJulian Wiedmann return 0; 55614a71df50SFrank Blaschka } 55624a71df50SFrank Blaschka 55634a71df50SFrank Blaschka void qeth_core_free_discipline(struct qeth_card *card) 55644a71df50SFrank Blaschka { 55654fda3354SJulian Wiedmann if (IS_LAYER2(card)) 5566c041f2d4SSebastian Ott symbol_put(qeth_l2_discipline); 55674a71df50SFrank Blaschka else 5568c041f2d4SSebastian Ott symbol_put(qeth_l3_discipline); 5569c1a935f6SJulian Wiedmann card->options.layer = QETH_DISCIPLINE_UNDETERMINED; 5570c041f2d4SSebastian Ott card->discipline = NULL; 55714a71df50SFrank Blaschka } 55724a71df50SFrank Blaschka 55732d2ebb3eSJulian Wiedmann const struct device_type qeth_generic_devtype = { 5574b7169c51SSebastian Ott .name = "qeth_generic", 5575b7169c51SSebastian Ott .groups = qeth_generic_attr_groups, 5576b7169c51SSebastian Ott }; 55772d2ebb3eSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_generic_devtype); 55782d2ebb3eSJulian Wiedmann 5579b7169c51SSebastian Ott static const struct device_type qeth_osn_devtype = { 5580b7169c51SSebastian Ott .name = "qeth_osn", 5581b7169c51SSebastian Ott .groups = qeth_osn_attr_groups, 5582b7169c51SSebastian Ott }; 5583b7169c51SSebastian Ott 5584819dc537SStefan Raspl #define DBF_NAME_LEN 20 5585819dc537SStefan Raspl 5586819dc537SStefan Raspl struct qeth_dbf_entry { 5587819dc537SStefan Raspl char dbf_name[DBF_NAME_LEN]; 5588819dc537SStefan Raspl debug_info_t *dbf_info; 5589819dc537SStefan Raspl struct list_head dbf_list; 5590819dc537SStefan Raspl }; 5591819dc537SStefan Raspl 5592819dc537SStefan Raspl static LIST_HEAD(qeth_dbf_list); 5593819dc537SStefan Raspl static DEFINE_MUTEX(qeth_dbf_list_mutex); 5594819dc537SStefan Raspl 5595819dc537SStefan Raspl static debug_info_t *qeth_get_dbf_entry(char *name) 5596819dc537SStefan Raspl { 5597819dc537SStefan Raspl struct qeth_dbf_entry *entry; 5598819dc537SStefan Raspl debug_info_t *rc = NULL; 5599819dc537SStefan Raspl 5600819dc537SStefan Raspl mutex_lock(&qeth_dbf_list_mutex); 5601819dc537SStefan Raspl list_for_each_entry(entry, &qeth_dbf_list, dbf_list) { 5602819dc537SStefan Raspl if (strcmp(entry->dbf_name, name) == 0) { 5603819dc537SStefan Raspl rc = entry->dbf_info; 5604819dc537SStefan Raspl break; 5605819dc537SStefan Raspl } 5606819dc537SStefan Raspl } 5607819dc537SStefan Raspl mutex_unlock(&qeth_dbf_list_mutex); 5608819dc537SStefan Raspl return rc; 5609819dc537SStefan Raspl } 5610819dc537SStefan Raspl 5611819dc537SStefan Raspl static int qeth_add_dbf_entry(struct qeth_card *card, char *name) 5612819dc537SStefan Raspl { 5613819dc537SStefan Raspl struct qeth_dbf_entry *new_entry; 5614819dc537SStefan Raspl 5615819dc537SStefan Raspl card->debug = debug_register(name, 2, 1, 8); 5616819dc537SStefan Raspl if (!card->debug) { 5617819dc537SStefan Raspl QETH_DBF_TEXT_(SETUP, 2, "%s", "qcdbf"); 5618819dc537SStefan Raspl goto err; 5619819dc537SStefan Raspl } 5620819dc537SStefan Raspl if (debug_register_view(card->debug, &debug_hex_ascii_view)) 5621819dc537SStefan Raspl goto err_dbg; 5622819dc537SStefan Raspl new_entry = kzalloc(sizeof(struct qeth_dbf_entry), GFP_KERNEL); 5623819dc537SStefan Raspl if (!new_entry) 5624819dc537SStefan Raspl goto err_dbg; 5625819dc537SStefan Raspl strncpy(new_entry->dbf_name, name, DBF_NAME_LEN); 5626819dc537SStefan Raspl new_entry->dbf_info = card->debug; 5627819dc537SStefan Raspl mutex_lock(&qeth_dbf_list_mutex); 5628819dc537SStefan Raspl list_add(&new_entry->dbf_list, &qeth_dbf_list); 5629819dc537SStefan Raspl mutex_unlock(&qeth_dbf_list_mutex); 5630819dc537SStefan Raspl 5631819dc537SStefan Raspl return 0; 5632819dc537SStefan Raspl 5633819dc537SStefan Raspl err_dbg: 5634819dc537SStefan Raspl debug_unregister(card->debug); 5635819dc537SStefan Raspl err: 5636819dc537SStefan Raspl return -ENOMEM; 5637819dc537SStefan Raspl } 5638819dc537SStefan Raspl 5639819dc537SStefan Raspl static void qeth_clear_dbf_list(void) 5640819dc537SStefan Raspl { 5641819dc537SStefan Raspl struct qeth_dbf_entry *entry, *tmp; 5642819dc537SStefan Raspl 5643819dc537SStefan Raspl mutex_lock(&qeth_dbf_list_mutex); 5644819dc537SStefan Raspl list_for_each_entry_safe(entry, tmp, &qeth_dbf_list, dbf_list) { 5645819dc537SStefan Raspl list_del(&entry->dbf_list); 5646819dc537SStefan Raspl debug_unregister(entry->dbf_info); 5647819dc537SStefan Raspl kfree(entry); 5648819dc537SStefan Raspl } 5649819dc537SStefan Raspl mutex_unlock(&qeth_dbf_list_mutex); 5650819dc537SStefan Raspl } 5651819dc537SStefan Raspl 5652d3d1b205SJulian Wiedmann static struct net_device *qeth_alloc_netdev(struct qeth_card *card) 5653d3d1b205SJulian Wiedmann { 5654d3d1b205SJulian Wiedmann struct net_device *dev; 5655d3d1b205SJulian Wiedmann 5656d3d1b205SJulian Wiedmann switch (card->info.type) { 5657d3d1b205SJulian Wiedmann case QETH_CARD_TYPE_IQD: 5658d3d1b205SJulian Wiedmann dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN, ether_setup); 5659d3d1b205SJulian Wiedmann break; 5660d3d1b205SJulian Wiedmann case QETH_CARD_TYPE_OSN: 5661d3d1b205SJulian Wiedmann dev = alloc_netdev(0, "osn%d", NET_NAME_UNKNOWN, ether_setup); 5662d3d1b205SJulian Wiedmann break; 5663d3d1b205SJulian Wiedmann default: 5664d3d1b205SJulian Wiedmann dev = alloc_etherdev(0); 5665d3d1b205SJulian Wiedmann } 5666d3d1b205SJulian Wiedmann 5667d3d1b205SJulian Wiedmann if (!dev) 5668d3d1b205SJulian Wiedmann return NULL; 5669d3d1b205SJulian Wiedmann 5670d3d1b205SJulian Wiedmann dev->ml_priv = card; 5671d3d1b205SJulian Wiedmann dev->watchdog_timeo = QETH_TX_TIMEOUT; 567272f219daSJulian Wiedmann dev->min_mtu = IS_OSN(card) ? 64 : 576; 56738ce7a9e0SJulian Wiedmann /* initialized when device first goes online: */ 56748ce7a9e0SJulian Wiedmann dev->max_mtu = 0; 56758ce7a9e0SJulian Wiedmann dev->mtu = 0; 5676d3d1b205SJulian Wiedmann SET_NETDEV_DEV(dev, &card->gdev->dev); 5677d3d1b205SJulian Wiedmann netif_carrier_off(dev); 56785f89eca5SJulian Wiedmann 56795f89eca5SJulian Wiedmann if (!IS_OSN(card)) { 56805f89eca5SJulian Wiedmann dev->priv_flags &= ~IFF_TX_SKB_SHARING; 56815f89eca5SJulian Wiedmann dev->hw_features |= NETIF_F_SG; 56825f89eca5SJulian Wiedmann dev->vlan_features |= NETIF_F_SG; 568304db741dSJulian Wiedmann if (IS_IQD(card)) 568404db741dSJulian Wiedmann dev->features |= NETIF_F_SG; 56855f89eca5SJulian Wiedmann } 56865f89eca5SJulian Wiedmann 5687d3d1b205SJulian Wiedmann return dev; 5688d3d1b205SJulian Wiedmann } 5689d3d1b205SJulian Wiedmann 5690d3d1b205SJulian Wiedmann struct net_device *qeth_clone_netdev(struct net_device *orig) 5691d3d1b205SJulian Wiedmann { 5692d3d1b205SJulian Wiedmann struct net_device *clone = qeth_alloc_netdev(orig->ml_priv); 5693d3d1b205SJulian Wiedmann 5694d3d1b205SJulian Wiedmann if (!clone) 5695d3d1b205SJulian Wiedmann return NULL; 5696d3d1b205SJulian Wiedmann 5697d3d1b205SJulian Wiedmann clone->dev_port = orig->dev_port; 5698d3d1b205SJulian Wiedmann return clone; 5699d3d1b205SJulian Wiedmann } 5700d3d1b205SJulian Wiedmann 57014a71df50SFrank Blaschka static int qeth_core_probe_device(struct ccwgroup_device *gdev) 57024a71df50SFrank Blaschka { 57034a71df50SFrank Blaschka struct qeth_card *card; 57044a71df50SFrank Blaschka struct device *dev; 57054a71df50SFrank Blaschka int rc; 5706c70eb09dSJulian Wiedmann enum qeth_discipline_id enforced_disc; 5707819dc537SStefan Raspl char dbf_name[DBF_NAME_LEN]; 57084a71df50SFrank Blaschka 5709d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "probedev"); 57104a71df50SFrank Blaschka 57114a71df50SFrank Blaschka dev = &gdev->dev; 57124a71df50SFrank Blaschka if (!get_device(dev)) 57134a71df50SFrank Blaschka return -ENODEV; 57144a71df50SFrank Blaschka 57152a0217d5SKay Sievers QETH_DBF_TEXT_(SETUP, 2, "%s", dev_name(&gdev->dev)); 57164a71df50SFrank Blaschka 5717121ca39aSJulian Wiedmann card = qeth_alloc_card(gdev); 57184a71df50SFrank Blaschka if (!card) { 5719d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM); 57204a71df50SFrank Blaschka rc = -ENOMEM; 57214a71df50SFrank Blaschka goto err_dev; 57224a71df50SFrank Blaschka } 5723af039068SCarsten Otte 5724af039068SCarsten Otte snprintf(dbf_name, sizeof(dbf_name), "qeth_card_%s", 5725af039068SCarsten Otte dev_name(&gdev->dev)); 5726819dc537SStefan Raspl card->debug = qeth_get_dbf_entry(dbf_name); 5727af039068SCarsten Otte if (!card->debug) { 5728819dc537SStefan Raspl rc = qeth_add_dbf_entry(card, dbf_name); 5729819dc537SStefan Raspl if (rc) 5730af039068SCarsten Otte goto err_card; 5731af039068SCarsten Otte } 5732af039068SCarsten Otte 573395f4d8b7SJulian Wiedmann qeth_setup_card(card); 573495f4d8b7SJulian Wiedmann qeth_update_from_chp_desc(card); 57354a71df50SFrank Blaschka 5736d3d1b205SJulian Wiedmann card->dev = qeth_alloc_netdev(card); 5737778b1ac7SJulian Wiedmann if (!card->dev) { 5738778b1ac7SJulian Wiedmann rc = -ENOMEM; 5739d3d1b205SJulian Wiedmann goto err_card; 5740778b1ac7SJulian Wiedmann } 5741d3d1b205SJulian Wiedmann 5742c70eb09dSJulian Wiedmann qeth_determine_capabilities(card); 5743c70eb09dSJulian Wiedmann enforced_disc = qeth_enforce_discipline(card); 5744c70eb09dSJulian Wiedmann switch (enforced_disc) { 5745c70eb09dSJulian Wiedmann case QETH_DISCIPLINE_UNDETERMINED: 5746c70eb09dSJulian Wiedmann gdev->dev.type = &qeth_generic_devtype; 5747c70eb09dSJulian Wiedmann break; 5748c70eb09dSJulian Wiedmann default: 5749c70eb09dSJulian Wiedmann card->info.layer_enforced = true; 5750c70eb09dSJulian Wiedmann rc = qeth_core_load_discipline(card, enforced_disc); 57515113fec0SUrsula Braun if (rc) 5752d3d1b205SJulian Wiedmann goto err_load; 57532d2ebb3eSJulian Wiedmann 57542d2ebb3eSJulian Wiedmann gdev->dev.type = (card->info.type != QETH_CARD_TYPE_OSN) 57552d2ebb3eSJulian Wiedmann ? card->discipline->devtype 57562d2ebb3eSJulian Wiedmann : &qeth_osn_devtype; 5757c041f2d4SSebastian Ott rc = card->discipline->setup(card->gdev); 57585113fec0SUrsula Braun if (rc) 57595113fec0SUrsula Braun goto err_disc; 57602d2ebb3eSJulian Wiedmann break; 57614a71df50SFrank Blaschka } 57624a71df50SFrank Blaschka 57634a71df50SFrank Blaschka return 0; 57644a71df50SFrank Blaschka 57655113fec0SUrsula Braun err_disc: 57665113fec0SUrsula Braun qeth_core_free_discipline(card); 5767d3d1b205SJulian Wiedmann err_load: 5768d3d1b205SJulian Wiedmann free_netdev(card->dev); 57694a71df50SFrank Blaschka err_card: 57704a71df50SFrank Blaschka qeth_core_free_card(card); 57714a71df50SFrank Blaschka err_dev: 57724a71df50SFrank Blaschka put_device(dev); 57734a71df50SFrank Blaschka return rc; 57744a71df50SFrank Blaschka } 57754a71df50SFrank Blaschka 57764a71df50SFrank Blaschka static void qeth_core_remove_device(struct ccwgroup_device *gdev) 57774a71df50SFrank Blaschka { 57784a71df50SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 57794a71df50SFrank Blaschka 578028a7e4c9SUrsula Braun QETH_DBF_TEXT(SETUP, 2, "removedv"); 57814a71df50SFrank Blaschka 5782c041f2d4SSebastian Ott if (card->discipline) { 5783c041f2d4SSebastian Ott card->discipline->remove(gdev); 57849dc48cccSUrsula Braun qeth_core_free_discipline(card); 57859dc48cccSUrsula Braun } 57869dc48cccSUrsula Braun 5787d3d1b205SJulian Wiedmann free_netdev(card->dev); 57884a71df50SFrank Blaschka qeth_core_free_card(card); 57894a71df50SFrank Blaschka put_device(&gdev->dev); 57904a71df50SFrank Blaschka } 57914a71df50SFrank Blaschka 57924a71df50SFrank Blaschka static int qeth_core_set_online(struct ccwgroup_device *gdev) 57934a71df50SFrank Blaschka { 57944a71df50SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 57954a71df50SFrank Blaschka int rc = 0; 5796c70eb09dSJulian Wiedmann enum qeth_discipline_id def_discipline; 57974a71df50SFrank Blaschka 5798c041f2d4SSebastian Ott if (!card->discipline) { 57994a71df50SFrank Blaschka if (card->info.type == QETH_CARD_TYPE_IQD) 58004a71df50SFrank Blaschka def_discipline = QETH_DISCIPLINE_LAYER3; 58014a71df50SFrank Blaschka else 58024a71df50SFrank Blaschka def_discipline = QETH_DISCIPLINE_LAYER2; 58034a71df50SFrank Blaschka rc = qeth_core_load_discipline(card, def_discipline); 58044a71df50SFrank Blaschka if (rc) 58054a71df50SFrank Blaschka goto err; 5806c041f2d4SSebastian Ott rc = card->discipline->setup(card->gdev); 58079111e788SUrsula Braun if (rc) { 58089111e788SUrsula Braun qeth_core_free_discipline(card); 58094a71df50SFrank Blaschka goto err; 58104a71df50SFrank Blaschka } 58119111e788SUrsula Braun } 5812c041f2d4SSebastian Ott rc = card->discipline->set_online(gdev); 58134a71df50SFrank Blaschka err: 58144a71df50SFrank Blaschka return rc; 58154a71df50SFrank Blaschka } 58164a71df50SFrank Blaschka 58174a71df50SFrank Blaschka static int qeth_core_set_offline(struct ccwgroup_device *gdev) 58184a71df50SFrank Blaschka { 58194a71df50SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 5820c041f2d4SSebastian Ott return card->discipline->set_offline(gdev); 58214a71df50SFrank Blaschka } 58224a71df50SFrank Blaschka 58234a71df50SFrank Blaschka static void qeth_core_shutdown(struct ccwgroup_device *gdev) 58244a71df50SFrank Blaschka { 58254a71df50SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 582696d1bb53SJulian Wiedmann qeth_set_allowed_threads(card, 0, 1); 582796d1bb53SJulian Wiedmann if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap) 582896d1bb53SJulian Wiedmann qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); 582996d1bb53SJulian Wiedmann qeth_qdio_clear_card(card, 0); 583096d1bb53SJulian Wiedmann qeth_clear_qdio_buffers(card); 583196d1bb53SJulian Wiedmann qdio_free(CARD_DDEV(card)); 58324a71df50SFrank Blaschka } 58334a71df50SFrank Blaschka 5834bbcfcdc8SFrank Blaschka static int qeth_core_freeze(struct ccwgroup_device *gdev) 5835bbcfcdc8SFrank Blaschka { 5836bbcfcdc8SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 5837c041f2d4SSebastian Ott if (card->discipline && card->discipline->freeze) 5838c041f2d4SSebastian Ott return card->discipline->freeze(gdev); 5839bbcfcdc8SFrank Blaschka return 0; 5840bbcfcdc8SFrank Blaschka } 5841bbcfcdc8SFrank Blaschka 5842bbcfcdc8SFrank Blaschka static int qeth_core_thaw(struct ccwgroup_device *gdev) 5843bbcfcdc8SFrank Blaschka { 5844bbcfcdc8SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 5845c041f2d4SSebastian Ott if (card->discipline && card->discipline->thaw) 5846c041f2d4SSebastian Ott return card->discipline->thaw(gdev); 5847bbcfcdc8SFrank Blaschka return 0; 5848bbcfcdc8SFrank Blaschka } 5849bbcfcdc8SFrank Blaschka 5850bbcfcdc8SFrank Blaschka static int qeth_core_restore(struct ccwgroup_device *gdev) 5851bbcfcdc8SFrank Blaschka { 5852bbcfcdc8SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 5853c041f2d4SSebastian Ott if (card->discipline && card->discipline->restore) 5854c041f2d4SSebastian Ott return card->discipline->restore(gdev); 5855bbcfcdc8SFrank Blaschka return 0; 5856bbcfcdc8SFrank Blaschka } 5857bbcfcdc8SFrank Blaschka 585836369569SGreg Kroah-Hartman static ssize_t group_store(struct device_driver *ddrv, const char *buf, 585936369569SGreg Kroah-Hartman size_t count) 58604a71df50SFrank Blaschka { 58614a71df50SFrank Blaschka int err; 58624a71df50SFrank Blaschka 58636d8769abSJulian Wiedmann err = ccwgroup_create_dev(qeth_core_root_dev, to_ccwgroupdrv(ddrv), 3, 58646d8769abSJulian Wiedmann buf); 5865b7169c51SSebastian Ott 5866b7169c51SSebastian Ott return err ? err : count; 5867b7169c51SSebastian Ott } 586836369569SGreg Kroah-Hartman static DRIVER_ATTR_WO(group); 58694a71df50SFrank Blaschka 5870f47e2256SSebastian Ott static struct attribute *qeth_drv_attrs[] = { 5871f47e2256SSebastian Ott &driver_attr_group.attr, 5872f47e2256SSebastian Ott NULL, 5873f47e2256SSebastian Ott }; 5874f47e2256SSebastian Ott static struct attribute_group qeth_drv_attr_group = { 5875f47e2256SSebastian Ott .attrs = qeth_drv_attrs, 5876f47e2256SSebastian Ott }; 5877f47e2256SSebastian Ott static const struct attribute_group *qeth_drv_attr_groups[] = { 5878f47e2256SSebastian Ott &qeth_drv_attr_group, 5879f47e2256SSebastian Ott NULL, 5880f47e2256SSebastian Ott }; 5881f47e2256SSebastian Ott 58826d8769abSJulian Wiedmann static struct ccwgroup_driver qeth_core_ccwgroup_driver = { 58836d8769abSJulian Wiedmann .driver = { 58846d8769abSJulian Wiedmann .groups = qeth_drv_attr_groups, 58856d8769abSJulian Wiedmann .owner = THIS_MODULE, 58866d8769abSJulian Wiedmann .name = "qeth", 58876d8769abSJulian Wiedmann }, 58886d8769abSJulian Wiedmann .ccw_driver = &qeth_ccw_driver, 58896d8769abSJulian Wiedmann .setup = qeth_core_probe_device, 58906d8769abSJulian Wiedmann .remove = qeth_core_remove_device, 58916d8769abSJulian Wiedmann .set_online = qeth_core_set_online, 58926d8769abSJulian Wiedmann .set_offline = qeth_core_set_offline, 58936d8769abSJulian Wiedmann .shutdown = qeth_core_shutdown, 58946d8769abSJulian Wiedmann .prepare = NULL, 58956d8769abSJulian Wiedmann .complete = NULL, 58966d8769abSJulian Wiedmann .freeze = qeth_core_freeze, 58976d8769abSJulian Wiedmann .thaw = qeth_core_thaw, 58986d8769abSJulian Wiedmann .restore = qeth_core_restore, 58996d8769abSJulian Wiedmann }; 59006d8769abSJulian Wiedmann 5901d7d18da1SJulian Wiedmann struct qeth_card *qeth_get_card_by_busid(char *bus_id) 5902d7d18da1SJulian Wiedmann { 5903d7d18da1SJulian Wiedmann struct ccwgroup_device *gdev; 5904d7d18da1SJulian Wiedmann struct qeth_card *card; 5905d7d18da1SJulian Wiedmann 5906d7d18da1SJulian Wiedmann gdev = get_ccwgroupdev_by_busid(&qeth_core_ccwgroup_driver, bus_id); 5907d7d18da1SJulian Wiedmann if (!gdev) 5908d7d18da1SJulian Wiedmann return NULL; 5909d7d18da1SJulian Wiedmann 5910d7d18da1SJulian Wiedmann card = dev_get_drvdata(&gdev->dev); 5911d7d18da1SJulian Wiedmann put_device(&gdev->dev); 5912d7d18da1SJulian Wiedmann return card; 5913d7d18da1SJulian Wiedmann } 5914d7d18da1SJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_get_card_by_busid); 5915d7d18da1SJulian Wiedmann 5916942d6984SJulian Wiedmann int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) 5917942d6984SJulian Wiedmann { 5918942d6984SJulian Wiedmann struct qeth_card *card = dev->ml_priv; 5919942d6984SJulian Wiedmann struct mii_ioctl_data *mii_data; 5920942d6984SJulian Wiedmann int rc = 0; 5921942d6984SJulian Wiedmann 5922942d6984SJulian Wiedmann if (!card) 5923942d6984SJulian Wiedmann return -ENODEV; 5924942d6984SJulian Wiedmann 5925942d6984SJulian Wiedmann if (card->info.type == QETH_CARD_TYPE_OSN) 5926942d6984SJulian Wiedmann return -EPERM; 5927942d6984SJulian Wiedmann 5928942d6984SJulian Wiedmann switch (cmd) { 5929942d6984SJulian Wiedmann case SIOC_QETH_ADP_SET_SNMP_CONTROL: 5930942d6984SJulian Wiedmann rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data); 5931942d6984SJulian Wiedmann break; 5932942d6984SJulian Wiedmann case SIOC_QETH_GET_CARD_TYPE: 5933942d6984SJulian Wiedmann if ((card->info.type == QETH_CARD_TYPE_OSD || 5934942d6984SJulian Wiedmann card->info.type == QETH_CARD_TYPE_OSM || 5935942d6984SJulian Wiedmann card->info.type == QETH_CARD_TYPE_OSX) && 5936942d6984SJulian Wiedmann !card->info.guestlan) 5937942d6984SJulian Wiedmann return 1; 5938942d6984SJulian Wiedmann else 5939942d6984SJulian Wiedmann return 0; 5940942d6984SJulian Wiedmann case SIOCGMIIPHY: 5941942d6984SJulian Wiedmann mii_data = if_mii(rq); 5942942d6984SJulian Wiedmann mii_data->phy_id = 0; 5943942d6984SJulian Wiedmann break; 5944942d6984SJulian Wiedmann case SIOCGMIIREG: 5945942d6984SJulian Wiedmann mii_data = if_mii(rq); 5946942d6984SJulian Wiedmann if (mii_data->phy_id != 0) 5947942d6984SJulian Wiedmann rc = -EINVAL; 5948942d6984SJulian Wiedmann else 5949942d6984SJulian Wiedmann mii_data->val_out = qeth_mdio_read(dev, 5950942d6984SJulian Wiedmann mii_data->phy_id, mii_data->reg_num); 5951942d6984SJulian Wiedmann break; 5952942d6984SJulian Wiedmann case SIOC_QETH_QUERY_OAT: 5953942d6984SJulian Wiedmann rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data); 5954942d6984SJulian Wiedmann break; 5955942d6984SJulian Wiedmann default: 5956942d6984SJulian Wiedmann if (card->discipline->do_ioctl) 5957942d6984SJulian Wiedmann rc = card->discipline->do_ioctl(dev, rq, cmd); 5958942d6984SJulian Wiedmann else 5959942d6984SJulian Wiedmann rc = -EOPNOTSUPP; 5960942d6984SJulian Wiedmann } 5961942d6984SJulian Wiedmann if (rc) 5962942d6984SJulian Wiedmann QETH_CARD_TEXT_(card, 2, "ioce%x", rc); 5963942d6984SJulian Wiedmann return rc; 5964942d6984SJulian Wiedmann } 5965942d6984SJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_do_ioctl); 5966942d6984SJulian Wiedmann 59674a71df50SFrank Blaschka static struct { 59684a71df50SFrank Blaschka const char str[ETH_GSTRING_LEN]; 59694a71df50SFrank Blaschka } qeth_ethtool_stats_keys[] = { 59704a71df50SFrank Blaschka /* 0 */{"rx skbs"}, 59714a71df50SFrank Blaschka {"rx buffers"}, 59724a71df50SFrank Blaschka {"tx skbs"}, 59734a71df50SFrank Blaschka {"tx buffers"}, 59744a71df50SFrank Blaschka {"tx skbs no packing"}, 59754a71df50SFrank Blaschka {"tx buffers no packing"}, 59764a71df50SFrank Blaschka {"tx skbs packing"}, 59774a71df50SFrank Blaschka {"tx buffers packing"}, 59784a71df50SFrank Blaschka {"tx sg skbs"}, 5979d2a274b2SJulian Wiedmann {"tx buffer elements"}, 59804a71df50SFrank Blaschka /* 10 */{"rx sg skbs"}, 59814a71df50SFrank Blaschka {"rx sg frags"}, 59824a71df50SFrank Blaschka {"rx sg page allocs"}, 59834a71df50SFrank Blaschka {"tx large kbytes"}, 59844a71df50SFrank Blaschka {"tx large count"}, 59854a71df50SFrank Blaschka {"tx pk state ch n->p"}, 59864a71df50SFrank Blaschka {"tx pk state ch p->n"}, 59874a71df50SFrank Blaschka {"tx pk watermark low"}, 59884a71df50SFrank Blaschka {"tx pk watermark high"}, 59894a71df50SFrank Blaschka {"queue 0 buffer usage"}, 59904a71df50SFrank Blaschka /* 20 */{"queue 1 buffer usage"}, 59914a71df50SFrank Blaschka {"queue 2 buffer usage"}, 59924a71df50SFrank Blaschka {"queue 3 buffer usage"}, 5993a1c3ed4cSFrank Blaschka {"rx poll time"}, 5994a1c3ed4cSFrank Blaschka {"rx poll count"}, 59954a71df50SFrank Blaschka {"rx do_QDIO time"}, 59964a71df50SFrank Blaschka {"rx do_QDIO count"}, 59974a71df50SFrank Blaschka {"tx handler time"}, 59984a71df50SFrank Blaschka {"tx handler count"}, 59994a71df50SFrank Blaschka {"tx time"}, 60004a71df50SFrank Blaschka /* 30 */{"tx count"}, 60014a71df50SFrank Blaschka {"tx do_QDIO time"}, 60024a71df50SFrank Blaschka {"tx do_QDIO count"}, 6003f61a0d05SFrank Blaschka {"tx csum"}, 6004c3b4a740SFrank Blaschka {"tx lin"}, 60056059c905SEugene Crosser {"tx linfail"}, 60060da9581dSEinar Lueck {"cq handler count"}, 60073aade31bSKittipon Meesompop {"cq handler time"}, 60083aade31bSKittipon Meesompop {"rx csum"} 60094a71df50SFrank Blaschka }; 60104a71df50SFrank Blaschka 6011df8b4ec8SBen Hutchings int qeth_core_get_sset_count(struct net_device *dev, int stringset) 60124a71df50SFrank Blaschka { 6013df8b4ec8SBen Hutchings switch (stringset) { 6014df8b4ec8SBen Hutchings case ETH_SS_STATS: 60154a71df50SFrank Blaschka return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN); 6016df8b4ec8SBen Hutchings default: 6017df8b4ec8SBen Hutchings return -EINVAL; 60184a71df50SFrank Blaschka } 6019df8b4ec8SBen Hutchings } 6020df8b4ec8SBen Hutchings EXPORT_SYMBOL_GPL(qeth_core_get_sset_count); 60214a71df50SFrank Blaschka 60224a71df50SFrank Blaschka void qeth_core_get_ethtool_stats(struct net_device *dev, 60234a71df50SFrank Blaschka struct ethtool_stats *stats, u64 *data) 60244a71df50SFrank Blaschka { 6025509e2562SHeiko Carstens struct qeth_card *card = dev->ml_priv; 60264a71df50SFrank Blaschka data[0] = card->stats.rx_packets - 60274a71df50SFrank Blaschka card->perf_stats.initial_rx_packets; 60284a71df50SFrank Blaschka data[1] = card->perf_stats.bufs_rec; 60294a71df50SFrank Blaschka data[2] = card->stats.tx_packets - 60304a71df50SFrank Blaschka card->perf_stats.initial_tx_packets; 60314a71df50SFrank Blaschka data[3] = card->perf_stats.bufs_sent; 60324a71df50SFrank Blaschka data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets 60334a71df50SFrank Blaschka - card->perf_stats.skbs_sent_pack; 60344a71df50SFrank Blaschka data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack; 60354a71df50SFrank Blaschka data[6] = card->perf_stats.skbs_sent_pack; 60364a71df50SFrank Blaschka data[7] = card->perf_stats.bufs_sent_pack; 60374a71df50SFrank Blaschka data[8] = card->perf_stats.sg_skbs_sent; 6038d2a274b2SJulian Wiedmann data[9] = card->perf_stats.buf_elements_sent; 60394a71df50SFrank Blaschka data[10] = card->perf_stats.sg_skbs_rx; 60404a71df50SFrank Blaschka data[11] = card->perf_stats.sg_frags_rx; 60414a71df50SFrank Blaschka data[12] = card->perf_stats.sg_alloc_page_rx; 60424a71df50SFrank Blaschka data[13] = (card->perf_stats.large_send_bytes >> 10); 60434a71df50SFrank Blaschka data[14] = card->perf_stats.large_send_cnt; 60444a71df50SFrank Blaschka data[15] = card->perf_stats.sc_dp_p; 60454a71df50SFrank Blaschka data[16] = card->perf_stats.sc_p_dp; 60464a71df50SFrank Blaschka data[17] = QETH_LOW_WATERMARK_PACK; 60474a71df50SFrank Blaschka data[18] = QETH_HIGH_WATERMARK_PACK; 60484a71df50SFrank Blaschka data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers); 60494a71df50SFrank Blaschka data[20] = (card->qdio.no_out_queues > 1) ? 60504a71df50SFrank Blaschka atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0; 60514a71df50SFrank Blaschka data[21] = (card->qdio.no_out_queues > 2) ? 60524a71df50SFrank Blaschka atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0; 60534a71df50SFrank Blaschka data[22] = (card->qdio.no_out_queues > 3) ? 60544a71df50SFrank Blaschka atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0; 60554a71df50SFrank Blaschka data[23] = card->perf_stats.inbound_time; 60564a71df50SFrank Blaschka data[24] = card->perf_stats.inbound_cnt; 60574a71df50SFrank Blaschka data[25] = card->perf_stats.inbound_do_qdio_time; 60584a71df50SFrank Blaschka data[26] = card->perf_stats.inbound_do_qdio_cnt; 60594a71df50SFrank Blaschka data[27] = card->perf_stats.outbound_handler_time; 60604a71df50SFrank Blaschka data[28] = card->perf_stats.outbound_handler_cnt; 60614a71df50SFrank Blaschka data[29] = card->perf_stats.outbound_time; 60624a71df50SFrank Blaschka data[30] = card->perf_stats.outbound_cnt; 60634a71df50SFrank Blaschka data[31] = card->perf_stats.outbound_do_qdio_time; 60644a71df50SFrank Blaschka data[32] = card->perf_stats.outbound_do_qdio_cnt; 6065f61a0d05SFrank Blaschka data[33] = card->perf_stats.tx_csum; 6066c3b4a740SFrank Blaschka data[34] = card->perf_stats.tx_lin; 60676059c905SEugene Crosser data[35] = card->perf_stats.tx_linfail; 60686059c905SEugene Crosser data[36] = card->perf_stats.cq_cnt; 60696059c905SEugene Crosser data[37] = card->perf_stats.cq_time; 60703aade31bSKittipon Meesompop data[38] = card->perf_stats.rx_csum; 60714a71df50SFrank Blaschka } 60724a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats); 60734a71df50SFrank Blaschka 60744a71df50SFrank Blaschka void qeth_core_get_strings(struct net_device *dev, u32 stringset, u8 *data) 60754a71df50SFrank Blaschka { 60764a71df50SFrank Blaschka switch (stringset) { 60774a71df50SFrank Blaschka case ETH_SS_STATS: 60784a71df50SFrank Blaschka memcpy(data, &qeth_ethtool_stats_keys, 60794a71df50SFrank Blaschka sizeof(qeth_ethtool_stats_keys)); 60804a71df50SFrank Blaschka break; 60814a71df50SFrank Blaschka default: 60824a71df50SFrank Blaschka WARN_ON(1); 60834a71df50SFrank Blaschka break; 60844a71df50SFrank Blaschka } 60854a71df50SFrank Blaschka } 60864a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_core_get_strings); 60874a71df50SFrank Blaschka 60884a71df50SFrank Blaschka void qeth_core_get_drvinfo(struct net_device *dev, 60894a71df50SFrank Blaschka struct ethtool_drvinfo *info) 60904a71df50SFrank Blaschka { 6091509e2562SHeiko Carstens struct qeth_card *card = dev->ml_priv; 60924a71df50SFrank Blaschka 60934fda3354SJulian Wiedmann strlcpy(info->driver, IS_LAYER2(card) ? "qeth_l2" : "qeth_l3", 60947826d43fSJiri Pirko sizeof(info->driver)); 60957826d43fSJiri Pirko strlcpy(info->version, "1.0", sizeof(info->version)); 60967826d43fSJiri Pirko strlcpy(info->fw_version, card->info.mcl_level, 60977826d43fSJiri Pirko sizeof(info->fw_version)); 60987826d43fSJiri Pirko snprintf(info->bus_info, sizeof(info->bus_info), "%s/%s/%s", 60997826d43fSJiri Pirko CARD_RDEV_ID(card), CARD_WDEV_ID(card), CARD_DDEV_ID(card)); 61004a71df50SFrank Blaschka } 61014a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo); 61024a71df50SFrank Blaschka 6103774afb8eSJulian Wiedmann /* Helper function to fill 'advertising' and 'supported' which are the same. */ 6104774afb8eSJulian Wiedmann /* Autoneg and full-duplex are supported and advertised unconditionally. */ 6105774afb8eSJulian Wiedmann /* Always advertise and support all speeds up to specified, and only one */ 610602d5cb5bSEugene Crosser /* specified port type. */ 6107993e19c0SJulian Wiedmann static void qeth_set_cmd_adv_sup(struct ethtool_link_ksettings *cmd, 610802d5cb5bSEugene Crosser int maxspeed, int porttype) 610902d5cb5bSEugene Crosser { 611041fc3b65SJulian Wiedmann ethtool_link_ksettings_zero_link_mode(cmd, supported); 611141fc3b65SJulian Wiedmann ethtool_link_ksettings_zero_link_mode(cmd, advertising); 611241fc3b65SJulian Wiedmann ethtool_link_ksettings_zero_link_mode(cmd, lp_advertising); 6113774afb8eSJulian Wiedmann 611441fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); 611541fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg); 611602d5cb5bSEugene Crosser 611702d5cb5bSEugene Crosser switch (porttype) { 611802d5cb5bSEugene Crosser case PORT_TP: 611941fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, TP); 612041fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, TP); 612102d5cb5bSEugene Crosser break; 612202d5cb5bSEugene Crosser case PORT_FIBRE: 612341fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE); 612441fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE); 612502d5cb5bSEugene Crosser break; 612602d5cb5bSEugene Crosser default: 612741fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, TP); 612841fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, TP); 612902d5cb5bSEugene Crosser WARN_ON_ONCE(1); 613002d5cb5bSEugene Crosser } 613102d5cb5bSEugene Crosser 613254e049c2SJulian Wiedmann /* partially does fall through, to also select lower speeds */ 613302d5cb5bSEugene Crosser switch (maxspeed) { 613454e049c2SJulian Wiedmann case SPEED_25000: 613554e049c2SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, 613654e049c2SJulian Wiedmann 25000baseSR_Full); 613754e049c2SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, 613854e049c2SJulian Wiedmann 25000baseSR_Full); 613954e049c2SJulian Wiedmann break; 614002d5cb5bSEugene Crosser case SPEED_10000: 614141fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, 614241fc3b65SJulian Wiedmann 10000baseT_Full); 614341fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, 614441fc3b65SJulian Wiedmann 10000baseT_Full); 614502d5cb5bSEugene Crosser case SPEED_1000: 614641fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, 614741fc3b65SJulian Wiedmann 1000baseT_Full); 614841fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, 614941fc3b65SJulian Wiedmann 1000baseT_Full); 615041fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, 615141fc3b65SJulian Wiedmann 1000baseT_Half); 615241fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, 615341fc3b65SJulian Wiedmann 1000baseT_Half); 615402d5cb5bSEugene Crosser case SPEED_100: 615541fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, 615641fc3b65SJulian Wiedmann 100baseT_Full); 615741fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, 615841fc3b65SJulian Wiedmann 100baseT_Full); 615941fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, 616041fc3b65SJulian Wiedmann 100baseT_Half); 616141fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, 616241fc3b65SJulian Wiedmann 100baseT_Half); 616302d5cb5bSEugene Crosser case SPEED_10: 616441fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, 616541fc3b65SJulian Wiedmann 10baseT_Full); 616641fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, 616741fc3b65SJulian Wiedmann 10baseT_Full); 616841fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, 616941fc3b65SJulian Wiedmann 10baseT_Half); 617041fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, 617141fc3b65SJulian Wiedmann 10baseT_Half); 6172774afb8eSJulian Wiedmann /* end fallthrough */ 617302d5cb5bSEugene Crosser break; 617402d5cb5bSEugene Crosser default: 617541fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, 617641fc3b65SJulian Wiedmann 10baseT_Full); 617741fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, 617841fc3b65SJulian Wiedmann 10baseT_Full); 617941fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, supported, 618041fc3b65SJulian Wiedmann 10baseT_Half); 618141fc3b65SJulian Wiedmann ethtool_link_ksettings_add_link_mode(cmd, advertising, 618241fc3b65SJulian Wiedmann 10baseT_Half); 618302d5cb5bSEugene Crosser WARN_ON_ONCE(1); 618402d5cb5bSEugene Crosser } 618502d5cb5bSEugene Crosser } 618602d5cb5bSEugene Crosser 6187993e19c0SJulian Wiedmann int qeth_core_ethtool_get_link_ksettings(struct net_device *netdev, 6188993e19c0SJulian Wiedmann struct ethtool_link_ksettings *cmd) 61893f9975aaSFrank Blaschka { 6190509e2562SHeiko Carstens struct qeth_card *card = netdev->ml_priv; 61913f9975aaSFrank Blaschka enum qeth_link_types link_type; 619202d5cb5bSEugene Crosser struct carrier_info carrier_info; 6193511c2445SEugene Crosser int rc; 61943f9975aaSFrank Blaschka 61953f9975aaSFrank Blaschka if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan)) 61963f9975aaSFrank Blaschka link_type = QETH_LINK_TYPE_10GBIT_ETH; 61973f9975aaSFrank Blaschka else 61983f9975aaSFrank Blaschka link_type = card->info.link_type; 61993f9975aaSFrank Blaschka 6200993e19c0SJulian Wiedmann cmd->base.duplex = DUPLEX_FULL; 6201993e19c0SJulian Wiedmann cmd->base.autoneg = AUTONEG_ENABLE; 6202993e19c0SJulian Wiedmann cmd->base.phy_address = 0; 6203993e19c0SJulian Wiedmann cmd->base.mdio_support = 0; 6204993e19c0SJulian Wiedmann cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID; 6205993e19c0SJulian Wiedmann cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_INVALID; 62063f9975aaSFrank Blaschka 62073f9975aaSFrank Blaschka switch (link_type) { 62083f9975aaSFrank Blaschka case QETH_LINK_TYPE_FAST_ETH: 62093f9975aaSFrank Blaschka case QETH_LINK_TYPE_LANE_ETH100: 6210993e19c0SJulian Wiedmann cmd->base.speed = SPEED_100; 6211993e19c0SJulian Wiedmann cmd->base.port = PORT_TP; 62123f9975aaSFrank Blaschka break; 62133f9975aaSFrank Blaschka case QETH_LINK_TYPE_GBIT_ETH: 62143f9975aaSFrank Blaschka case QETH_LINK_TYPE_LANE_ETH1000: 6215993e19c0SJulian Wiedmann cmd->base.speed = SPEED_1000; 6216993e19c0SJulian Wiedmann cmd->base.port = PORT_FIBRE; 62173f9975aaSFrank Blaschka break; 62183f9975aaSFrank Blaschka case QETH_LINK_TYPE_10GBIT_ETH: 6219993e19c0SJulian Wiedmann cmd->base.speed = SPEED_10000; 6220993e19c0SJulian Wiedmann cmd->base.port = PORT_FIBRE; 62213f9975aaSFrank Blaschka break; 622254e049c2SJulian Wiedmann case QETH_LINK_TYPE_25GBIT_ETH: 622354e049c2SJulian Wiedmann cmd->base.speed = SPEED_25000; 622454e049c2SJulian Wiedmann cmd->base.port = PORT_FIBRE; 622554e049c2SJulian Wiedmann break; 62263f9975aaSFrank Blaschka default: 6227993e19c0SJulian Wiedmann cmd->base.speed = SPEED_10; 6228993e19c0SJulian Wiedmann cmd->base.port = PORT_TP; 62293f9975aaSFrank Blaschka } 6230993e19c0SJulian Wiedmann qeth_set_cmd_adv_sup(cmd, cmd->base.speed, cmd->base.port); 62313f9975aaSFrank Blaschka 623202d5cb5bSEugene Crosser /* Check if we can obtain more accurate information. */ 623302d5cb5bSEugene Crosser /* If QUERY_CARD_INFO command is not supported or fails, */ 623402d5cb5bSEugene Crosser /* just return the heuristics that was filled above. */ 6235511c2445SEugene Crosser rc = qeth_query_card_info(card, &carrier_info); 6236511c2445SEugene Crosser if (rc == -EOPNOTSUPP) /* for old hardware, return heuristic */ 623702d5cb5bSEugene Crosser return 0; 6238511c2445SEugene Crosser if (rc) /* report error from the hardware operation */ 6239511c2445SEugene Crosser return rc; 6240511c2445SEugene Crosser /* on success, fill in the information got from the hardware */ 624102d5cb5bSEugene Crosser 624202d5cb5bSEugene Crosser netdev_dbg(netdev, 624302d5cb5bSEugene Crosser "card info: card_type=0x%02x, port_mode=0x%04x, port_speed=0x%08x\n", 624402d5cb5bSEugene Crosser carrier_info.card_type, 624502d5cb5bSEugene Crosser carrier_info.port_mode, 624602d5cb5bSEugene Crosser carrier_info.port_speed); 624702d5cb5bSEugene Crosser 624802d5cb5bSEugene Crosser /* Update attributes for which we've obtained more authoritative */ 624902d5cb5bSEugene Crosser /* information, leave the rest the way they where filled above. */ 625002d5cb5bSEugene Crosser switch (carrier_info.card_type) { 625102d5cb5bSEugene Crosser case CARD_INFO_TYPE_1G_COPPER_A: 625202d5cb5bSEugene Crosser case CARD_INFO_TYPE_1G_COPPER_B: 6253993e19c0SJulian Wiedmann cmd->base.port = PORT_TP; 6254993e19c0SJulian Wiedmann qeth_set_cmd_adv_sup(cmd, SPEED_1000, cmd->base.port); 625502d5cb5bSEugene Crosser break; 625602d5cb5bSEugene Crosser case CARD_INFO_TYPE_1G_FIBRE_A: 625702d5cb5bSEugene Crosser case CARD_INFO_TYPE_1G_FIBRE_B: 6258993e19c0SJulian Wiedmann cmd->base.port = PORT_FIBRE; 6259993e19c0SJulian Wiedmann qeth_set_cmd_adv_sup(cmd, SPEED_1000, cmd->base.port); 626002d5cb5bSEugene Crosser break; 626102d5cb5bSEugene Crosser case CARD_INFO_TYPE_10G_FIBRE_A: 626202d5cb5bSEugene Crosser case CARD_INFO_TYPE_10G_FIBRE_B: 6263993e19c0SJulian Wiedmann cmd->base.port = PORT_FIBRE; 6264993e19c0SJulian Wiedmann qeth_set_cmd_adv_sup(cmd, SPEED_10000, cmd->base.port); 626502d5cb5bSEugene Crosser break; 626602d5cb5bSEugene Crosser } 626702d5cb5bSEugene Crosser 626802d5cb5bSEugene Crosser switch (carrier_info.port_mode) { 626902d5cb5bSEugene Crosser case CARD_INFO_PORTM_FULLDUPLEX: 6270993e19c0SJulian Wiedmann cmd->base.duplex = DUPLEX_FULL; 627102d5cb5bSEugene Crosser break; 627202d5cb5bSEugene Crosser case CARD_INFO_PORTM_HALFDUPLEX: 6273993e19c0SJulian Wiedmann cmd->base.duplex = DUPLEX_HALF; 627402d5cb5bSEugene Crosser break; 627502d5cb5bSEugene Crosser } 627602d5cb5bSEugene Crosser 627702d5cb5bSEugene Crosser switch (carrier_info.port_speed) { 627802d5cb5bSEugene Crosser case CARD_INFO_PORTS_10M: 6279993e19c0SJulian Wiedmann cmd->base.speed = SPEED_10; 628002d5cb5bSEugene Crosser break; 628102d5cb5bSEugene Crosser case CARD_INFO_PORTS_100M: 6282993e19c0SJulian Wiedmann cmd->base.speed = SPEED_100; 628302d5cb5bSEugene Crosser break; 628402d5cb5bSEugene Crosser case CARD_INFO_PORTS_1G: 6285993e19c0SJulian Wiedmann cmd->base.speed = SPEED_1000; 628602d5cb5bSEugene Crosser break; 628702d5cb5bSEugene Crosser case CARD_INFO_PORTS_10G: 6288993e19c0SJulian Wiedmann cmd->base.speed = SPEED_10000; 628902d5cb5bSEugene Crosser break; 629054e049c2SJulian Wiedmann case CARD_INFO_PORTS_25G: 629154e049c2SJulian Wiedmann cmd->base.speed = SPEED_25000; 629254e049c2SJulian Wiedmann break; 629302d5cb5bSEugene Crosser } 629402d5cb5bSEugene Crosser 62953f9975aaSFrank Blaschka return 0; 62963f9975aaSFrank Blaschka } 6297993e19c0SJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_link_ksettings); 62983f9975aaSFrank Blaschka 62994386e34fSJulian Wiedmann static int qeth_start_csum_cb(struct qeth_card *card, struct qeth_reply *reply, 6300c9475369SThomas Richter unsigned long data) 6301c9475369SThomas Richter { 6302c9475369SThomas Richter struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 63034386e34fSJulian Wiedmann u32 *features = reply->param; 6304c9475369SThomas Richter 6305ad3cbf61SJulian Wiedmann if (qeth_setassparms_inspect_rc(cmd)) 6306c9475369SThomas Richter return 0; 6307c9475369SThomas Richter 63084386e34fSJulian Wiedmann *features = cmd->data.setassparms.data.flags_32bit; 6309c9475369SThomas Richter return 0; 6310c9475369SThomas Richter } 6311c9475369SThomas Richter 63124386e34fSJulian Wiedmann static int qeth_set_csum_off(struct qeth_card *card, enum qeth_ipa_funcs cstype, 6313a8155b00SKittipon Meesompop enum qeth_prot_versions prot) 6314c9475369SThomas Richter { 63154386e34fSJulian Wiedmann return qeth_send_simple_setassparms_prot(card, cstype, 63164386e34fSJulian Wiedmann IPA_CMD_ASS_STOP, 0, prot); 6317c9475369SThomas Richter } 6318c9475369SThomas Richter 63194386e34fSJulian Wiedmann static int qeth_set_csum_on(struct qeth_card *card, enum qeth_ipa_funcs cstype, 6320a8155b00SKittipon Meesompop enum qeth_prot_versions prot) 63214d7def2aSThomas Richter { 6322571f9dd8SKittipon Meesompop u32 required_features = QETH_IPA_CHECKSUM_UDP | QETH_IPA_CHECKSUM_TCP; 63234386e34fSJulian Wiedmann struct qeth_cmd_buffer *iob; 63244386e34fSJulian Wiedmann struct qeth_ipa_caps caps; 63254386e34fSJulian Wiedmann u32 features; 63264d7def2aSThomas Richter int rc; 63274d7def2aSThomas Richter 63287e83747dSJulian Wiedmann /* some L3 HW requires combined L3+L4 csum offload: */ 63297e83747dSJulian Wiedmann if (IS_LAYER3(card) && prot == QETH_PROT_IPV4 && 63307e83747dSJulian Wiedmann cstype == IPA_OUTBOUND_CHECKSUM) 6331571f9dd8SKittipon Meesompop required_features |= QETH_IPA_CHECKSUM_IP_HDR; 63327e83747dSJulian Wiedmann 63334386e34fSJulian Wiedmann iob = qeth_get_setassparms_cmd(card, cstype, IPA_CMD_ASS_START, 0, 6334a8155b00SKittipon Meesompop prot); 63354386e34fSJulian Wiedmann if (!iob) 63364386e34fSJulian Wiedmann return -ENOMEM; 63374386e34fSJulian Wiedmann 63384386e34fSJulian Wiedmann rc = qeth_send_ipa_cmd(card, iob, qeth_start_csum_cb, &features); 63394386e34fSJulian Wiedmann if (rc) 63404d7def2aSThomas Richter return rc; 63414386e34fSJulian Wiedmann 63424386e34fSJulian Wiedmann if ((required_features & features) != required_features) { 63434386e34fSJulian Wiedmann qeth_set_csum_off(card, cstype, prot); 63444386e34fSJulian Wiedmann return -EOPNOTSUPP; 63454386e34fSJulian Wiedmann } 63464386e34fSJulian Wiedmann 63474386e34fSJulian Wiedmann iob = qeth_get_setassparms_cmd(card, cstype, IPA_CMD_ASS_ENABLE, 4, 63484386e34fSJulian Wiedmann prot); 63494386e34fSJulian Wiedmann if (!iob) { 63504386e34fSJulian Wiedmann qeth_set_csum_off(card, cstype, prot); 63514386e34fSJulian Wiedmann return -ENOMEM; 63524386e34fSJulian Wiedmann } 63534386e34fSJulian Wiedmann 63544386e34fSJulian Wiedmann if (features & QETH_IPA_CHECKSUM_LP2LP) 63554386e34fSJulian Wiedmann required_features |= QETH_IPA_CHECKSUM_LP2LP; 63564386e34fSJulian Wiedmann __ipa_cmd(iob)->data.setassparms.data.flags_32bit = required_features; 63574386e34fSJulian Wiedmann rc = qeth_send_ipa_cmd(card, iob, qeth_setassparms_get_caps_cb, &caps); 63584386e34fSJulian Wiedmann if (rc) { 63594386e34fSJulian Wiedmann qeth_set_csum_off(card, cstype, prot); 63604386e34fSJulian Wiedmann return rc; 63614386e34fSJulian Wiedmann } 63624386e34fSJulian Wiedmann 63634386e34fSJulian Wiedmann if (!qeth_ipa_caps_supported(&caps, required_features) || 63644386e34fSJulian Wiedmann !qeth_ipa_caps_enabled(&caps, required_features)) { 63654386e34fSJulian Wiedmann qeth_set_csum_off(card, cstype, prot); 63664386e34fSJulian Wiedmann return -EOPNOTSUPP; 63674d7def2aSThomas Richter } 63688f43fb00SThomas Richter 6369a8155b00SKittipon Meesompop dev_info(&card->gdev->dev, "HW Checksumming (%sbound IPv%d) enabled\n", 6370a8155b00SKittipon Meesompop cstype == IPA_INBOUND_CHECKSUM ? "in" : "out", prot); 63714386e34fSJulian Wiedmann if (!qeth_ipa_caps_enabled(&caps, QETH_IPA_CHECKSUM_LP2LP) && 63724386e34fSJulian Wiedmann cstype == IPA_OUTBOUND_CHECKSUM) 63734386e34fSJulian Wiedmann dev_warn(&card->gdev->dev, 63744386e34fSJulian Wiedmann "Hardware checksumming is performed only if %s and its peer use different OSA Express 3 ports\n", 63754386e34fSJulian Wiedmann QETH_CARD_IFNAME(card)); 63764d7def2aSThomas Richter return 0; 63774d7def2aSThomas Richter } 63784d7def2aSThomas Richter 6379a8155b00SKittipon Meesompop static int qeth_set_ipa_csum(struct qeth_card *card, bool on, int cstype, 6380a8155b00SKittipon Meesompop enum qeth_prot_versions prot) 63814d7def2aSThomas Richter { 63824386e34fSJulian Wiedmann int rc = (on) ? qeth_set_csum_on(card, cstype, prot) : 63834386e34fSJulian Wiedmann qeth_set_csum_off(card, cstype, prot); 6384c9475369SThomas Richter return rc ? -EIO : 0; 63854d7def2aSThomas Richter } 63864d7def2aSThomas Richter 63874666d7fbSJulian Wiedmann static int qeth_start_tso_cb(struct qeth_card *card, struct qeth_reply *reply, 63884666d7fbSJulian Wiedmann unsigned long data) 63894666d7fbSJulian Wiedmann { 63904666d7fbSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 63914666d7fbSJulian Wiedmann struct qeth_tso_start_data *tso_data = reply->param; 63924666d7fbSJulian Wiedmann 63934666d7fbSJulian Wiedmann if (qeth_setassparms_inspect_rc(cmd)) 63944666d7fbSJulian Wiedmann return 0; 63954666d7fbSJulian Wiedmann 63964666d7fbSJulian Wiedmann tso_data->mss = cmd->data.setassparms.data.tso.mss; 63974666d7fbSJulian Wiedmann tso_data->supported = cmd->data.setassparms.data.tso.supported; 63984666d7fbSJulian Wiedmann return 0; 63994666d7fbSJulian Wiedmann } 64004666d7fbSJulian Wiedmann 64011f83b817SJulian Wiedmann static int qeth_set_tso_off(struct qeth_card *card, 64021f83b817SJulian Wiedmann enum qeth_prot_versions prot) 64034d7def2aSThomas Richter { 64041f83b817SJulian Wiedmann return qeth_send_simple_setassparms_prot(card, IPA_OUTBOUND_TSO, 64051f83b817SJulian Wiedmann IPA_CMD_ASS_STOP, 0, prot); 64068f43fb00SThomas Richter } 64071f83b817SJulian Wiedmann 64081f83b817SJulian Wiedmann static int qeth_set_tso_on(struct qeth_card *card, 64091f83b817SJulian Wiedmann enum qeth_prot_versions prot) 64101f83b817SJulian Wiedmann { 64114666d7fbSJulian Wiedmann struct qeth_tso_start_data tso_data; 64124666d7fbSJulian Wiedmann struct qeth_cmd_buffer *iob; 64134666d7fbSJulian Wiedmann struct qeth_ipa_caps caps; 64144666d7fbSJulian Wiedmann int rc; 64154666d7fbSJulian Wiedmann 64164666d7fbSJulian Wiedmann iob = qeth_get_setassparms_cmd(card, IPA_OUTBOUND_TSO, 64171f83b817SJulian Wiedmann IPA_CMD_ASS_START, 0, prot); 64184666d7fbSJulian Wiedmann if (!iob) 64194666d7fbSJulian Wiedmann return -ENOMEM; 64204666d7fbSJulian Wiedmann 64214fa55fa9SJulian Wiedmann rc = qeth_send_ipa_cmd(card, iob, qeth_start_tso_cb, &tso_data); 64224666d7fbSJulian Wiedmann if (rc) 64234666d7fbSJulian Wiedmann return rc; 64244666d7fbSJulian Wiedmann 64254666d7fbSJulian Wiedmann if (!tso_data.mss || !(tso_data.supported & QETH_IPA_LARGE_SEND_TCP)) { 64264666d7fbSJulian Wiedmann qeth_set_tso_off(card, prot); 64274666d7fbSJulian Wiedmann return -EOPNOTSUPP; 64284666d7fbSJulian Wiedmann } 64294666d7fbSJulian Wiedmann 64304666d7fbSJulian Wiedmann iob = qeth_get_setassparms_cmd(card, IPA_OUTBOUND_TSO, 64314666d7fbSJulian Wiedmann IPA_CMD_ASS_ENABLE, sizeof(caps), prot); 64324666d7fbSJulian Wiedmann if (!iob) { 64334666d7fbSJulian Wiedmann qeth_set_tso_off(card, prot); 64344666d7fbSJulian Wiedmann return -ENOMEM; 64354666d7fbSJulian Wiedmann } 64364666d7fbSJulian Wiedmann 64374666d7fbSJulian Wiedmann /* enable TSO capability */ 64384fa55fa9SJulian Wiedmann __ipa_cmd(iob)->data.setassparms.data.caps.enabled = 64394fa55fa9SJulian Wiedmann QETH_IPA_LARGE_SEND_TCP; 64404fa55fa9SJulian Wiedmann rc = qeth_send_ipa_cmd(card, iob, qeth_setassparms_get_caps_cb, &caps); 64414666d7fbSJulian Wiedmann if (rc) { 64424666d7fbSJulian Wiedmann qeth_set_tso_off(card, prot); 64434666d7fbSJulian Wiedmann return rc; 64444666d7fbSJulian Wiedmann } 64454666d7fbSJulian Wiedmann 64464666d7fbSJulian Wiedmann if (!qeth_ipa_caps_supported(&caps, QETH_IPA_LARGE_SEND_TCP) || 64474666d7fbSJulian Wiedmann !qeth_ipa_caps_enabled(&caps, QETH_IPA_LARGE_SEND_TCP)) { 64484666d7fbSJulian Wiedmann qeth_set_tso_off(card, prot); 64494666d7fbSJulian Wiedmann return -EOPNOTSUPP; 64504666d7fbSJulian Wiedmann } 64514666d7fbSJulian Wiedmann 64524666d7fbSJulian Wiedmann dev_info(&card->gdev->dev, "TSOv%u enabled (MSS: %u)\n", prot, 64534666d7fbSJulian Wiedmann tso_data.mss); 64544666d7fbSJulian Wiedmann return 0; 64558f43fb00SThomas Richter } 64561f83b817SJulian Wiedmann 64571f83b817SJulian Wiedmann static int qeth_set_ipa_tso(struct qeth_card *card, bool on, 64581f83b817SJulian Wiedmann enum qeth_prot_versions prot) 64591f83b817SJulian Wiedmann { 64601f83b817SJulian Wiedmann int rc = on ? qeth_set_tso_on(card, prot) : 64611f83b817SJulian Wiedmann qeth_set_tso_off(card, prot); 64621f83b817SJulian Wiedmann 64631f83b817SJulian Wiedmann return rc ? -EIO : 0; 64644d7def2aSThomas Richter } 64658f43fb00SThomas Richter 6466d7e6ed97SKittipon Meesompop static int qeth_set_ipa_rx_csum(struct qeth_card *card, bool on) 6467d7e6ed97SKittipon Meesompop { 6468d7e6ed97SKittipon Meesompop int rc_ipv4 = (on) ? -EOPNOTSUPP : 0; 6469d7e6ed97SKittipon Meesompop int rc_ipv6; 6470ce344356SJulian Wiedmann 6471d7e6ed97SKittipon Meesompop if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) 6472d7e6ed97SKittipon Meesompop rc_ipv4 = qeth_set_ipa_csum(card, on, IPA_INBOUND_CHECKSUM, 6473d7e6ed97SKittipon Meesompop QETH_PROT_IPV4); 6474d7e6ed97SKittipon Meesompop if (!qeth_is_supported6(card, IPA_INBOUND_CHECKSUM_V6)) 6475d7e6ed97SKittipon Meesompop /* no/one Offload Assist available, so the rc is trivial */ 6476d7e6ed97SKittipon Meesompop return rc_ipv4; 6477d7e6ed97SKittipon Meesompop 6478d7e6ed97SKittipon Meesompop rc_ipv6 = qeth_set_ipa_csum(card, on, IPA_INBOUND_CHECKSUM, 6479d7e6ed97SKittipon Meesompop QETH_PROT_IPV6); 6480d7e6ed97SKittipon Meesompop 6481d7e6ed97SKittipon Meesompop if (on) 6482d7e6ed97SKittipon Meesompop /* enable: success if any Assist is active */ 6483d7e6ed97SKittipon Meesompop return (rc_ipv6) ? rc_ipv4 : 0; 6484d7e6ed97SKittipon Meesompop 6485d7e6ed97SKittipon Meesompop /* disable: failure if any Assist is still active */ 6486d7e6ed97SKittipon Meesompop return (rc_ipv6) ? rc_ipv6 : rc_ipv4; 6487d7e6ed97SKittipon Meesompop } 6488d7e6ed97SKittipon Meesompop 6489ce344356SJulian Wiedmann /** 6490d025da9eSJulian Wiedmann * qeth_enable_hw_features() - (Re-)Enable HW functions for device features 6491d025da9eSJulian Wiedmann * @dev: a net_device 6492ce344356SJulian Wiedmann */ 6493d025da9eSJulian Wiedmann void qeth_enable_hw_features(struct net_device *dev) 6494e830baa9SHans Wippel { 6495e830baa9SHans Wippel struct qeth_card *card = dev->ml_priv; 6496d025da9eSJulian Wiedmann netdev_features_t features; 6497e830baa9SHans Wippel 6498d025da9eSJulian Wiedmann features = dev->features; 64995fc692a7SJulian Wiedmann /* force-off any feature that might need an IPA sequence. 6500ce344356SJulian Wiedmann * netdev_update_features() will restart them. 6501ce344356SJulian Wiedmann */ 65025fc692a7SJulian Wiedmann dev->features &= ~dev->hw_features; 65035fc692a7SJulian Wiedmann /* toggle VLAN filter, so that VIDs are re-programmed: */ 65045fc692a7SJulian Wiedmann if (IS_LAYER2(card) && IS_VM_NIC(card)) { 65055fc692a7SJulian Wiedmann dev->features &= ~NETIF_F_HW_VLAN_CTAG_FILTER; 65065fc692a7SJulian Wiedmann dev->wanted_features |= NETIF_F_HW_VLAN_CTAG_FILTER; 65075fc692a7SJulian Wiedmann } 6508ce344356SJulian Wiedmann netdev_update_features(dev); 6509d025da9eSJulian Wiedmann if (features != dev->features) 6510e830baa9SHans Wippel dev_warn(&card->gdev->dev, 6511e830baa9SHans Wippel "Device recovery failed to restore all offload features\n"); 6512e830baa9SHans Wippel } 6513d025da9eSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_enable_hw_features); 6514e830baa9SHans Wippel 65158f43fb00SThomas Richter int qeth_set_features(struct net_device *dev, netdev_features_t features) 65168f43fb00SThomas Richter { 65178f43fb00SThomas Richter struct qeth_card *card = dev->ml_priv; 65186c7cd712SHans Wippel netdev_features_t changed = dev->features ^ features; 65198f43fb00SThomas Richter int rc = 0; 65208f43fb00SThomas Richter 65218f43fb00SThomas Richter QETH_DBF_TEXT(SETUP, 2, "setfeat"); 65228f43fb00SThomas Richter QETH_DBF_HEX(SETUP, 2, &features, sizeof(features)); 65238f43fb00SThomas Richter 65246c7cd712SHans Wippel if ((changed & NETIF_F_IP_CSUM)) { 6525a8155b00SKittipon Meesompop rc = qeth_set_ipa_csum(card, features & NETIF_F_IP_CSUM, 6526a8155b00SKittipon Meesompop IPA_OUTBOUND_CHECKSUM, QETH_PROT_IPV4); 65276c7cd712SHans Wippel if (rc) 65286c7cd712SHans Wippel changed ^= NETIF_F_IP_CSUM; 65296c7cd712SHans Wippel } 6530571f9dd8SKittipon Meesompop if (changed & NETIF_F_IPV6_CSUM) { 6531571f9dd8SKittipon Meesompop rc = qeth_set_ipa_csum(card, features & NETIF_F_IPV6_CSUM, 6532571f9dd8SKittipon Meesompop IPA_OUTBOUND_CHECKSUM, QETH_PROT_IPV6); 6533571f9dd8SKittipon Meesompop if (rc) 6534571f9dd8SKittipon Meesompop changed ^= NETIF_F_IPV6_CSUM; 6535571f9dd8SKittipon Meesompop } 6536d7e6ed97SKittipon Meesompop if (changed & NETIF_F_RXCSUM) { 6537d7e6ed97SKittipon Meesompop rc = qeth_set_ipa_rx_csum(card, features & NETIF_F_RXCSUM); 65386c7cd712SHans Wippel if (rc) 65396c7cd712SHans Wippel changed ^= NETIF_F_RXCSUM; 65406c7cd712SHans Wippel } 65411f83b817SJulian Wiedmann if (changed & NETIF_F_TSO) { 65421f83b817SJulian Wiedmann rc = qeth_set_ipa_tso(card, features & NETIF_F_TSO, 65431f83b817SJulian Wiedmann QETH_PROT_IPV4); 65446c7cd712SHans Wippel if (rc) 65456c7cd712SHans Wippel changed ^= NETIF_F_TSO; 65466c7cd712SHans Wippel } 654782bf5c08SJulian Wiedmann if (changed & NETIF_F_TSO6) { 654882bf5c08SJulian Wiedmann rc = qeth_set_ipa_tso(card, features & NETIF_F_TSO6, 654982bf5c08SJulian Wiedmann QETH_PROT_IPV6); 655082bf5c08SJulian Wiedmann if (rc) 655182bf5c08SJulian Wiedmann changed ^= NETIF_F_TSO6; 655282bf5c08SJulian Wiedmann } 65536c7cd712SHans Wippel 65546c7cd712SHans Wippel /* everything changed successfully? */ 65556c7cd712SHans Wippel if ((dev->features ^ features) == changed) 65566c7cd712SHans Wippel return 0; 65576c7cd712SHans Wippel /* something went wrong. save changed features and return error */ 65586c7cd712SHans Wippel dev->features ^= changed; 65596c7cd712SHans Wippel return -EIO; 65608f43fb00SThomas Richter } 65618f43fb00SThomas Richter EXPORT_SYMBOL_GPL(qeth_set_features); 65628f43fb00SThomas Richter 65638f43fb00SThomas Richter netdev_features_t qeth_fix_features(struct net_device *dev, 65648f43fb00SThomas Richter netdev_features_t features) 65658f43fb00SThomas Richter { 65668f43fb00SThomas Richter struct qeth_card *card = dev->ml_priv; 65678f43fb00SThomas Richter 65688f43fb00SThomas Richter QETH_DBF_TEXT(SETUP, 2, "fixfeat"); 65698f43fb00SThomas Richter if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM)) 65708f43fb00SThomas Richter features &= ~NETIF_F_IP_CSUM; 6571571f9dd8SKittipon Meesompop if (!qeth_is_supported6(card, IPA_OUTBOUND_CHECKSUM_V6)) 6572571f9dd8SKittipon Meesompop features &= ~NETIF_F_IPV6_CSUM; 6573d7e6ed97SKittipon Meesompop if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM) && 6574d7e6ed97SKittipon Meesompop !qeth_is_supported6(card, IPA_INBOUND_CHECKSUM_V6)) 65758f43fb00SThomas Richter features &= ~NETIF_F_RXCSUM; 6576cf536ffeSJulian Wiedmann if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) 65778f43fb00SThomas Richter features &= ~NETIF_F_TSO; 657882bf5c08SJulian Wiedmann if (!qeth_is_supported6(card, IPA_OUTBOUND_TSO)) 657982bf5c08SJulian Wiedmann features &= ~NETIF_F_TSO6; 6580e6e771b3SJulian Wiedmann 65818f43fb00SThomas Richter QETH_DBF_HEX(SETUP, 2, &features, sizeof(features)); 65828f43fb00SThomas Richter return features; 65838f43fb00SThomas Richter } 65848f43fb00SThomas Richter EXPORT_SYMBOL_GPL(qeth_fix_features); 65854d7def2aSThomas Richter 65866d69b1f1SJulian Wiedmann netdev_features_t qeth_features_check(struct sk_buff *skb, 65876d69b1f1SJulian Wiedmann struct net_device *dev, 65886d69b1f1SJulian Wiedmann netdev_features_t features) 65896d69b1f1SJulian Wiedmann { 65906d69b1f1SJulian Wiedmann /* GSO segmentation builds skbs with 65916d69b1f1SJulian Wiedmann * a (small) linear part for the headers, and 65926d69b1f1SJulian Wiedmann * page frags for the data. 65936d69b1f1SJulian Wiedmann * Compared to a linear skb, the header-only part consumes an 65946d69b1f1SJulian Wiedmann * additional buffer element. This reduces buffer utilization, and 65956d69b1f1SJulian Wiedmann * hurts throughput. So compress small segments into one element. 65966d69b1f1SJulian Wiedmann */ 65976d69b1f1SJulian Wiedmann if (netif_needs_gso(skb, features)) { 65986d69b1f1SJulian Wiedmann /* match skb_segment(): */ 65996d69b1f1SJulian Wiedmann unsigned int doffset = skb->data - skb_mac_header(skb); 66006d69b1f1SJulian Wiedmann unsigned int hsize = skb_shinfo(skb)->gso_size; 66016d69b1f1SJulian Wiedmann unsigned int hroom = skb_headroom(skb); 66026d69b1f1SJulian Wiedmann 66036d69b1f1SJulian Wiedmann /* linearize only if resulting skb allocations are order-0: */ 66046d69b1f1SJulian Wiedmann if (SKB_DATA_ALIGN(hroom + doffset + hsize) <= SKB_MAX_HEAD(0)) 66056d69b1f1SJulian Wiedmann features &= ~NETIF_F_SG; 66066d69b1f1SJulian Wiedmann } 66076d69b1f1SJulian Wiedmann 66086d69b1f1SJulian Wiedmann return vlan_features_check(skb, features); 66096d69b1f1SJulian Wiedmann } 66106d69b1f1SJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_features_check); 66116d69b1f1SJulian Wiedmann 6612e6e771b3SJulian Wiedmann int qeth_open(struct net_device *dev) 6613e22355eaSJulian Wiedmann { 6614e22355eaSJulian Wiedmann struct qeth_card *card = dev->ml_priv; 6615e22355eaSJulian Wiedmann 6616e22355eaSJulian Wiedmann QETH_CARD_TEXT(card, 4, "qethopen"); 6617e22355eaSJulian Wiedmann if (card->state == CARD_STATE_UP) 6618e22355eaSJulian Wiedmann return 0; 6619e22355eaSJulian Wiedmann if (card->state != CARD_STATE_SOFTSETUP) 6620e22355eaSJulian Wiedmann return -ENODEV; 6621e22355eaSJulian Wiedmann 6622e22355eaSJulian Wiedmann if (qdio_stop_irq(CARD_DDEV(card), 0) < 0) 6623e22355eaSJulian Wiedmann return -EIO; 6624e22355eaSJulian Wiedmann 6625e22355eaSJulian Wiedmann card->data.state = CH_STATE_UP; 6626e22355eaSJulian Wiedmann card->state = CARD_STATE_UP; 6627e22355eaSJulian Wiedmann netif_start_queue(dev); 6628e22355eaSJulian Wiedmann 6629e22355eaSJulian Wiedmann napi_enable(&card->napi); 6630e22355eaSJulian Wiedmann local_bh_disable(); 6631e22355eaSJulian Wiedmann napi_schedule(&card->napi); 6632e22355eaSJulian Wiedmann /* kick-start the NAPI softirq: */ 6633e22355eaSJulian Wiedmann local_bh_enable(); 6634e22355eaSJulian Wiedmann return 0; 6635e22355eaSJulian Wiedmann } 6636e22355eaSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_open); 6637e22355eaSJulian Wiedmann 6638e22355eaSJulian Wiedmann int qeth_stop(struct net_device *dev) 6639e22355eaSJulian Wiedmann { 6640e22355eaSJulian Wiedmann struct qeth_card *card = dev->ml_priv; 6641e22355eaSJulian Wiedmann 6642e22355eaSJulian Wiedmann QETH_CARD_TEXT(card, 4, "qethstop"); 6643e22355eaSJulian Wiedmann netif_tx_disable(dev); 6644e22355eaSJulian Wiedmann if (card->state == CARD_STATE_UP) { 6645e22355eaSJulian Wiedmann card->state = CARD_STATE_SOFTSETUP; 6646e22355eaSJulian Wiedmann napi_disable(&card->napi); 6647e22355eaSJulian Wiedmann } 6648e22355eaSJulian Wiedmann return 0; 6649e22355eaSJulian Wiedmann } 6650e22355eaSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_stop); 6651e22355eaSJulian Wiedmann 66524a71df50SFrank Blaschka static int __init qeth_core_init(void) 66534a71df50SFrank Blaschka { 66544a71df50SFrank Blaschka int rc; 66554a71df50SFrank Blaschka 665674eacdb9SFrank Blaschka pr_info("loading core functions\n"); 66574a71df50SFrank Blaschka 66580f54761dSStefan Raspl qeth_wq = create_singlethread_workqueue("qeth_wq"); 6659a936b1efSJulian Wiedmann if (!qeth_wq) { 6660a936b1efSJulian Wiedmann rc = -ENOMEM; 6661a936b1efSJulian Wiedmann goto out_err; 6662a936b1efSJulian Wiedmann } 66630f54761dSStefan Raspl 66644a71df50SFrank Blaschka rc = qeth_register_dbf_views(); 66654a71df50SFrank Blaschka if (rc) 6666a936b1efSJulian Wiedmann goto dbf_err; 6667035da16fSMark McLoughlin qeth_core_root_dev = root_device_register("qeth"); 66689262c6c2SDuan Jiong rc = PTR_ERR_OR_ZERO(qeth_core_root_dev); 66694a71df50SFrank Blaschka if (rc) 66704a71df50SFrank Blaschka goto register_err; 667155494264SJulian Wiedmann qeth_core_header_cache = 667255494264SJulian Wiedmann kmem_cache_create("qeth_hdr", QETH_HDR_CACHE_OBJ_SIZE, 667355494264SJulian Wiedmann roundup_pow_of_two(QETH_HDR_CACHE_OBJ_SIZE), 667455494264SJulian Wiedmann 0, NULL); 6675683d718aSFrank Blaschka if (!qeth_core_header_cache) { 6676683d718aSFrank Blaschka rc = -ENOMEM; 6677683d718aSFrank Blaschka goto slab_err; 6678683d718aSFrank Blaschka } 66790da9581dSEinar Lueck qeth_qdio_outbuf_cache = kmem_cache_create("qeth_buf", 66800da9581dSEinar Lueck sizeof(struct qeth_qdio_out_buffer), 0, 0, NULL); 66810da9581dSEinar Lueck if (!qeth_qdio_outbuf_cache) { 66820da9581dSEinar Lueck rc = -ENOMEM; 66830da9581dSEinar Lueck goto cqslab_err; 66840da9581dSEinar Lueck } 66854a71df50SFrank Blaschka rc = ccw_driver_register(&qeth_ccw_driver); 66864a71df50SFrank Blaschka if (rc) 66874a71df50SFrank Blaschka goto ccw_err; 66884a71df50SFrank Blaschka rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver); 66894a71df50SFrank Blaschka if (rc) 66904a71df50SFrank Blaschka goto ccwgroup_err; 66910da9581dSEinar Lueck 6692683d718aSFrank Blaschka return 0; 6693afb6ac59SSebastian Ott 6694afb6ac59SSebastian Ott ccwgroup_err: 6695afb6ac59SSebastian Ott ccw_driver_unregister(&qeth_ccw_driver); 6696afb6ac59SSebastian Ott ccw_err: 6697afb6ac59SSebastian Ott kmem_cache_destroy(qeth_qdio_outbuf_cache); 66980da9581dSEinar Lueck cqslab_err: 66990da9581dSEinar Lueck kmem_cache_destroy(qeth_core_header_cache); 6700683d718aSFrank Blaschka slab_err: 6701035da16fSMark McLoughlin root_device_unregister(qeth_core_root_dev); 67024a71df50SFrank Blaschka register_err: 67034a71df50SFrank Blaschka qeth_unregister_dbf_views(); 6704a936b1efSJulian Wiedmann dbf_err: 6705a936b1efSJulian Wiedmann destroy_workqueue(qeth_wq); 67064a71df50SFrank Blaschka out_err: 670774eacdb9SFrank Blaschka pr_err("Initializing the qeth device driver failed\n"); 67084a71df50SFrank Blaschka return rc; 67094a71df50SFrank Blaschka } 67104a71df50SFrank Blaschka 67114a71df50SFrank Blaschka static void __exit qeth_core_exit(void) 67124a71df50SFrank Blaschka { 6713819dc537SStefan Raspl qeth_clear_dbf_list(); 67140f54761dSStefan Raspl destroy_workqueue(qeth_wq); 67154a71df50SFrank Blaschka ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver); 67164a71df50SFrank Blaschka ccw_driver_unregister(&qeth_ccw_driver); 67170da9581dSEinar Lueck kmem_cache_destroy(qeth_qdio_outbuf_cache); 6718683d718aSFrank Blaschka kmem_cache_destroy(qeth_core_header_cache); 6719afb6ac59SSebastian Ott root_device_unregister(qeth_core_root_dev); 67204a71df50SFrank Blaschka qeth_unregister_dbf_views(); 672174eacdb9SFrank Blaschka pr_info("core functions removed\n"); 67224a71df50SFrank Blaschka } 67234a71df50SFrank Blaschka 67244a71df50SFrank Blaschka module_init(qeth_core_init); 67254a71df50SFrank Blaschka module_exit(qeth_core_exit); 67264a71df50SFrank Blaschka MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); 67274a71df50SFrank Blaschka MODULE_DESCRIPTION("qeth core functions"); 67284a71df50SFrank Blaschka MODULE_LICENSE("GPL"); 6729