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) { 8704b7ae122SJulian Wiedmann reply->rc = rc; 8710951c6baSJulian Wiedmann qeth_notify_reply(reply); 8724b7ae122SJulian Wiedmann } 8734b7ae122SJulian Wiedmann 8744a71df50SFrank Blaschka qeth_put_reply(reply); 8750951c6baSJulian Wiedmann 8764a71df50SFrank Blaschka out: 8774a71df50SFrank Blaschka memcpy(&card->seqno.pdu_hdr_ack, 8784a71df50SFrank Blaschka QETH_PDU_HEADER_SEQ_NO(iob->data), 8794a71df50SFrank Blaschka QETH_SEQ_NO_LENGTH); 8804a71df50SFrank Blaschka qeth_release_buffer(channel, iob); 8814a71df50SFrank Blaschka } 8824a71df50SFrank Blaschka 8834a71df50SFrank Blaschka static int qeth_set_thread_start_bit(struct qeth_card *card, 8844a71df50SFrank Blaschka unsigned long thread) 8854a71df50SFrank Blaschka { 8864a71df50SFrank Blaschka unsigned long flags; 8874a71df50SFrank Blaschka 8884a71df50SFrank Blaschka spin_lock_irqsave(&card->thread_mask_lock, flags); 8894a71df50SFrank Blaschka if (!(card->thread_allowed_mask & thread) || 8904a71df50SFrank Blaschka (card->thread_start_mask & thread)) { 8914a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 8924a71df50SFrank Blaschka return -EPERM; 8934a71df50SFrank Blaschka } 8944a71df50SFrank Blaschka card->thread_start_mask |= thread; 8954a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 8964a71df50SFrank Blaschka return 0; 8974a71df50SFrank Blaschka } 8984a71df50SFrank Blaschka 8994a71df50SFrank Blaschka void qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread) 9004a71df50SFrank Blaschka { 9014a71df50SFrank Blaschka unsigned long flags; 9024a71df50SFrank Blaschka 9034a71df50SFrank Blaschka spin_lock_irqsave(&card->thread_mask_lock, flags); 9044a71df50SFrank Blaschka card->thread_start_mask &= ~thread; 9054a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 9064a71df50SFrank Blaschka wake_up(&card->wait_q); 9074a71df50SFrank Blaschka } 9084a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit); 9094a71df50SFrank Blaschka 9104a71df50SFrank Blaschka void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread) 9114a71df50SFrank Blaschka { 9124a71df50SFrank Blaschka unsigned long flags; 9134a71df50SFrank Blaschka 9144a71df50SFrank Blaschka spin_lock_irqsave(&card->thread_mask_lock, flags); 9154a71df50SFrank Blaschka card->thread_running_mask &= ~thread; 9164a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 9171063e432SJulian Wiedmann wake_up_all(&card->wait_q); 9184a71df50SFrank Blaschka } 9194a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit); 9204a71df50SFrank Blaschka 9214a71df50SFrank Blaschka static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread) 9224a71df50SFrank Blaschka { 9234a71df50SFrank Blaschka unsigned long flags; 9244a71df50SFrank Blaschka int rc = 0; 9254a71df50SFrank Blaschka 9264a71df50SFrank Blaschka spin_lock_irqsave(&card->thread_mask_lock, flags); 9274a71df50SFrank Blaschka if (card->thread_start_mask & thread) { 9284a71df50SFrank Blaschka if ((card->thread_allowed_mask & thread) && 9294a71df50SFrank Blaschka !(card->thread_running_mask & thread)) { 9304a71df50SFrank Blaschka rc = 1; 9314a71df50SFrank Blaschka card->thread_start_mask &= ~thread; 9324a71df50SFrank Blaschka card->thread_running_mask |= thread; 9334a71df50SFrank Blaschka } else 9344a71df50SFrank Blaschka rc = -EPERM; 9354a71df50SFrank Blaschka } 9364a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 9374a71df50SFrank Blaschka return rc; 9384a71df50SFrank Blaschka } 9394a71df50SFrank Blaschka 9404a71df50SFrank Blaschka int qeth_do_run_thread(struct qeth_card *card, unsigned long thread) 9414a71df50SFrank Blaschka { 9424a71df50SFrank Blaschka int rc = 0; 9434a71df50SFrank Blaschka 9444a71df50SFrank Blaschka wait_event(card->wait_q, 9454a71df50SFrank Blaschka (rc = __qeth_do_run_thread(card, thread)) >= 0); 9464a71df50SFrank Blaschka return rc; 9474a71df50SFrank Blaschka } 9484a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_do_run_thread); 9494a71df50SFrank Blaschka 9504a71df50SFrank Blaschka void qeth_schedule_recovery(struct qeth_card *card) 9514a71df50SFrank Blaschka { 952847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "startrec"); 9534a71df50SFrank Blaschka if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0) 9544a71df50SFrank Blaschka schedule_work(&card->kernel_thread_starter); 9554a71df50SFrank Blaschka } 9564a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_schedule_recovery); 9574a71df50SFrank Blaschka 9588d908eb0SJulian Wiedmann static int qeth_get_problem(struct qeth_card *card, struct ccw_device *cdev, 9598d908eb0SJulian Wiedmann struct irb *irb) 9604a71df50SFrank Blaschka { 9614a71df50SFrank Blaschka int dstat, cstat; 9624a71df50SFrank Blaschka char *sense; 9634a71df50SFrank Blaschka 9644a71df50SFrank Blaschka sense = (char *) irb->ecw; 96523d805b6SPeter Oberparleiter cstat = irb->scsw.cmd.cstat; 96623d805b6SPeter Oberparleiter dstat = irb->scsw.cmd.dstat; 9674a71df50SFrank Blaschka 9684a71df50SFrank Blaschka if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK | 9694a71df50SFrank Blaschka SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK | 9704a71df50SFrank Blaschka SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) { 971847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "CGENCHK"); 97274eacdb9SFrank Blaschka dev_warn(&cdev->dev, "The qeth device driver " 97374eacdb9SFrank Blaschka "failed to recover an error on the device\n"); 974e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "check on channel %x with dstat=%#x, cstat=%#x\n", 975e19e5be8SJulian Wiedmann CCW_DEVID(cdev), dstat, cstat); 9764a71df50SFrank Blaschka print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET, 9774a71df50SFrank Blaschka 16, 1, irb, 64, 1); 9784a71df50SFrank Blaschka return 1; 9794a71df50SFrank Blaschka } 9804a71df50SFrank Blaschka 9814a71df50SFrank Blaschka if (dstat & DEV_STAT_UNIT_CHECK) { 9824a71df50SFrank Blaschka if (sense[SENSE_RESETTING_EVENT_BYTE] & 9834a71df50SFrank Blaschka SENSE_RESETTING_EVENT_FLAG) { 984847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "REVIND"); 9854a71df50SFrank Blaschka return 1; 9864a71df50SFrank Blaschka } 9874a71df50SFrank Blaschka if (sense[SENSE_COMMAND_REJECT_BYTE] & 9884a71df50SFrank Blaschka SENSE_COMMAND_REJECT_FLAG) { 989847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "CMDREJi"); 99028a7e4c9SUrsula Braun return 1; 9914a71df50SFrank Blaschka } 9924a71df50SFrank Blaschka if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) { 993847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "AFFE"); 9944a71df50SFrank Blaschka return 1; 9954a71df50SFrank Blaschka } 9964a71df50SFrank Blaschka if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) { 997847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "ZEROSEN"); 9984a71df50SFrank Blaschka return 0; 9994a71df50SFrank Blaschka } 1000847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "DGENCHK"); 10014a71df50SFrank Blaschka return 1; 10024a71df50SFrank Blaschka } 10034a71df50SFrank Blaschka return 0; 10044a71df50SFrank Blaschka } 10054a71df50SFrank Blaschka 100654daaca7SJulian Wiedmann static int qeth_check_irb_error(struct qeth_card *card, struct ccw_device *cdev, 100754daaca7SJulian Wiedmann unsigned long intparm, struct irb *irb) 10084a71df50SFrank Blaschka { 10098d908eb0SJulian Wiedmann if (!IS_ERR(irb)) 10104a71df50SFrank Blaschka return 0; 10114a71df50SFrank Blaschka 10124a71df50SFrank Blaschka switch (PTR_ERR(irb)) { 10134a71df50SFrank Blaschka case -EIO: 1014e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "i/o-error on channel %x\n", 1015e19e5be8SJulian Wiedmann CCW_DEVID(cdev)); 1016847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "ckirberr"); 1017847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 2, " rc%d", -EIO); 101854daaca7SJulian Wiedmann return -EIO; 10194a71df50SFrank Blaschka case -ETIMEDOUT: 102074eacdb9SFrank Blaschka dev_warn(&cdev->dev, "A hardware operation timed out" 102174eacdb9SFrank Blaschka " on the device\n"); 1022847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "ckirberr"); 1023847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 2, " rc%d", -ETIMEDOUT); 10244a71df50SFrank Blaschka if (intparm == QETH_RCD_PARM) { 1025e95051ffSRickard Strandqvist if (card->data.ccwdev == cdev) { 10264a71df50SFrank Blaschka card->data.state = CH_STATE_DOWN; 10274a71df50SFrank Blaschka wake_up(&card->wait_q); 10284a71df50SFrank Blaschka } 10294a71df50SFrank Blaschka } 103054daaca7SJulian Wiedmann return -ETIMEDOUT; 10314a71df50SFrank Blaschka default: 1032e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "unknown error %ld on channel %x\n", 1033e19e5be8SJulian Wiedmann PTR_ERR(irb), CCW_DEVID(cdev)); 1034847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "ckirberr"); 1035847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, " rc???"); 10364a71df50SFrank Blaschka return PTR_ERR(irb); 10374a71df50SFrank Blaschka } 103854daaca7SJulian Wiedmann } 10394a71df50SFrank Blaschka 10404a71df50SFrank Blaschka static void qeth_irq(struct ccw_device *cdev, unsigned long intparm, 10414a71df50SFrank Blaschka struct irb *irb) 10424a71df50SFrank Blaschka { 10434a71df50SFrank Blaschka int rc; 10444a71df50SFrank Blaschka int cstat, dstat; 1045db71bbbdSJulian Wiedmann struct qeth_cmd_buffer *iob = NULL; 10468d908eb0SJulian Wiedmann struct ccwgroup_device *gdev; 10474a71df50SFrank Blaschka struct qeth_channel *channel; 10484a71df50SFrank Blaschka struct qeth_card *card; 10494a71df50SFrank Blaschka 10508d908eb0SJulian Wiedmann /* while we hold the ccwdev lock, this stays valid: */ 10518d908eb0SJulian Wiedmann gdev = dev_get_drvdata(&cdev->dev); 10528d908eb0SJulian Wiedmann card = dev_get_drvdata(&gdev->dev); 10534a71df50SFrank Blaschka if (!card) 10544a71df50SFrank Blaschka return; 10554a71df50SFrank Blaschka 1056847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "irq"); 1057847a50fdSCarsten Otte 10584a71df50SFrank Blaschka if (card->read.ccwdev == cdev) { 10594a71df50SFrank Blaschka channel = &card->read; 1060847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "read"); 10614a71df50SFrank Blaschka } else if (card->write.ccwdev == cdev) { 10624a71df50SFrank Blaschka channel = &card->write; 1063847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "write"); 10644a71df50SFrank Blaschka } else { 10654a71df50SFrank Blaschka channel = &card->data; 1066847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "data"); 10674a71df50SFrank Blaschka } 1068db71bbbdSJulian Wiedmann 1069db71bbbdSJulian Wiedmann if (qeth_intparm_is_iob(intparm)) 1070db71bbbdSJulian Wiedmann iob = (struct qeth_cmd_buffer *) __va((addr_t)intparm); 1071db71bbbdSJulian Wiedmann 107254daaca7SJulian Wiedmann rc = qeth_check_irb_error(card, cdev, intparm, irb); 107354daaca7SJulian Wiedmann if (rc) { 1074db71bbbdSJulian Wiedmann /* IO was terminated, free its resources. */ 1075db71bbbdSJulian Wiedmann if (iob) 107654daaca7SJulian Wiedmann qeth_cancel_cmd(iob, rc); 1077db71bbbdSJulian Wiedmann atomic_set(&channel->irq_pending, 0); 1078db71bbbdSJulian Wiedmann wake_up(&card->wait_q); 1079db71bbbdSJulian Wiedmann return; 1080db71bbbdSJulian Wiedmann } 1081db71bbbdSJulian Wiedmann 10824a71df50SFrank Blaschka atomic_set(&channel->irq_pending, 0); 10834a71df50SFrank Blaschka 108423d805b6SPeter Oberparleiter if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC)) 10854a71df50SFrank Blaschka channel->state = CH_STATE_STOPPED; 10864a71df50SFrank Blaschka 108723d805b6SPeter Oberparleiter if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC)) 10884a71df50SFrank Blaschka channel->state = CH_STATE_HALTED; 10894a71df50SFrank Blaschka 10904a71df50SFrank Blaschka /*let's wake up immediately on data channel*/ 10914a71df50SFrank Blaschka if ((channel == &card->data) && (intparm != 0) && 10924a71df50SFrank Blaschka (intparm != QETH_RCD_PARM)) 10934a71df50SFrank Blaschka goto out; 10944a71df50SFrank Blaschka 10954a71df50SFrank Blaschka if (intparm == QETH_CLEAR_CHANNEL_PARM) { 1096847a50fdSCarsten Otte QETH_CARD_TEXT(card, 6, "clrchpar"); 10974a71df50SFrank Blaschka /* we don't have to handle this further */ 10984a71df50SFrank Blaschka intparm = 0; 10994a71df50SFrank Blaschka } 11004a71df50SFrank Blaschka if (intparm == QETH_HALT_CHANNEL_PARM) { 1101847a50fdSCarsten Otte QETH_CARD_TEXT(card, 6, "hltchpar"); 11024a71df50SFrank Blaschka /* we don't have to handle this further */ 11034a71df50SFrank Blaschka intparm = 0; 11044a71df50SFrank Blaschka } 1105db71bbbdSJulian Wiedmann 1106db71bbbdSJulian Wiedmann cstat = irb->scsw.cmd.cstat; 1107db71bbbdSJulian Wiedmann dstat = irb->scsw.cmd.dstat; 1108db71bbbdSJulian Wiedmann 11094a71df50SFrank Blaschka if ((dstat & DEV_STAT_UNIT_EXCEP) || 11104a71df50SFrank Blaschka (dstat & DEV_STAT_UNIT_CHECK) || 11114a71df50SFrank Blaschka (cstat)) { 11124a71df50SFrank Blaschka if (irb->esw.esw0.erw.cons) { 111374eacdb9SFrank Blaschka dev_warn(&channel->ccwdev->dev, 111474eacdb9SFrank Blaschka "The qeth device driver failed to recover " 111574eacdb9SFrank Blaschka "an error on the device\n"); 1116e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "sense data available on channel %x: cstat %#X dstat %#X\n", 1117e19e5be8SJulian Wiedmann CCW_DEVID(channel->ccwdev), cstat, 1118e19e5be8SJulian Wiedmann dstat); 11194a71df50SFrank Blaschka print_hex_dump(KERN_WARNING, "qeth: irb ", 11204a71df50SFrank Blaschka DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1); 11214a71df50SFrank Blaschka print_hex_dump(KERN_WARNING, "qeth: sense data ", 11224a71df50SFrank Blaschka DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1); 11234a71df50SFrank Blaschka } 11244a71df50SFrank Blaschka if (intparm == QETH_RCD_PARM) { 11254a71df50SFrank Blaschka channel->state = CH_STATE_DOWN; 11264a71df50SFrank Blaschka goto out; 11274a71df50SFrank Blaschka } 11288d908eb0SJulian Wiedmann rc = qeth_get_problem(card, cdev, irb); 11294a71df50SFrank Blaschka if (rc) { 1130a6c3d939SJulian Wiedmann card->read_or_write_problem = 1; 11315065b2ddSJulian Wiedmann if (iob) 113254daaca7SJulian Wiedmann qeth_cancel_cmd(iob, rc); 113328a7e4c9SUrsula Braun qeth_clear_ipacmd_list(card); 11344a71df50SFrank Blaschka qeth_schedule_recovery(card); 11354a71df50SFrank Blaschka goto out; 11364a71df50SFrank Blaschka } 11374a71df50SFrank Blaschka } 11384a71df50SFrank Blaschka 11394a71df50SFrank Blaschka if (intparm == QETH_RCD_PARM) { 11404a71df50SFrank Blaschka channel->state = CH_STATE_RCD_DONE; 11414a71df50SFrank Blaschka goto out; 11424a71df50SFrank Blaschka } 11434a71df50SFrank Blaschka if (channel == &card->data) 11444a71df50SFrank Blaschka return; 11454a71df50SFrank Blaschka if (channel == &card->read && 11464a71df50SFrank Blaschka channel->state == CH_STATE_UP) 114717bf8c9bSJulian Wiedmann __qeth_issue_next_read(card); 11484a71df50SFrank Blaschka 1149db71bbbdSJulian Wiedmann if (iob && iob->callback) 11508f6637b8SJulian Wiedmann iob->callback(card, iob->channel, iob); 11514a71df50SFrank Blaschka 11524a71df50SFrank Blaschka out: 11534a71df50SFrank Blaschka wake_up(&card->wait_q); 11544a71df50SFrank Blaschka return; 11554a71df50SFrank Blaschka } 11564a71df50SFrank Blaschka 1157b3332930SFrank Blaschka static void qeth_notify_skbs(struct qeth_qdio_out_q *q, 1158b3332930SFrank Blaschka struct qeth_qdio_out_buffer *buf, 1159b3332930SFrank Blaschka enum iucv_tx_notify notification) 1160b3332930SFrank Blaschka { 1161b3332930SFrank Blaschka struct sk_buff *skb; 1162b3332930SFrank Blaschka 1163dc149e37SJulian Wiedmann skb_queue_walk(&buf->skb_list, skb) { 1164b3332930SFrank Blaschka QETH_CARD_TEXT_(q->card, 5, "skbn%d", notification); 1165b3332930SFrank Blaschka QETH_CARD_TEXT_(q->card, 5, "%lx", (long) skb); 11666a3123d0SJulian Wiedmann if (skb->protocol == htons(ETH_P_AF_IUCV) && skb->sk) 11676a3123d0SJulian Wiedmann iucv_sk(skb->sk)->sk_txnotify(skb, notification); 1168b3332930SFrank Blaschka } 1169b3332930SFrank Blaschka } 1170b3332930SFrank Blaschka 1171b3332930SFrank Blaschka static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf) 1172b3332930SFrank Blaschka { 117372861ae7SEinar Lueck /* release may never happen from within CQ tasklet scope */ 117418af5c17SStefan Raspl WARN_ON_ONCE(atomic_read(&buf->state) == QETH_QDIO_BUF_IN_CQ); 1175b3332930SFrank Blaschka 11766a3123d0SJulian Wiedmann if (atomic_read(&buf->state) == QETH_QDIO_BUF_PENDING) 11776a3123d0SJulian Wiedmann qeth_notify_skbs(buf->q, buf, TX_NOTIFY_GENERALERROR); 11786a3123d0SJulian Wiedmann 1179dc149e37SJulian Wiedmann __skb_queue_purge(&buf->skb_list); 1180b3332930SFrank Blaschka } 1181b3332930SFrank Blaschka 1182b67d801fSUrsula Braun static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue, 11833b346c18SJulian Wiedmann struct qeth_qdio_out_buffer *buf) 11844a71df50SFrank Blaschka { 11854a71df50SFrank Blaschka int i; 11864a71df50SFrank Blaschka 11874a71df50SFrank Blaschka /* is PCI flag set on buffer? */ 11883ec90878SJan Glauber if (buf->buffer->element[0].sflags & SBAL_SFLAGS0_PCI_REQ) 11894a71df50SFrank Blaschka atomic_dec(&queue->set_pci_flags_count); 11904a71df50SFrank Blaschka 1191b3332930SFrank Blaschka qeth_release_skbs(buf); 11923b346c18SJulian Wiedmann 11934a71df50SFrank Blaschka for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) { 1194683d718aSFrank Blaschka if (buf->buffer->element[i].addr && buf->is_header[i]) 1195683d718aSFrank Blaschka kmem_cache_free(qeth_core_header_cache, 1196683d718aSFrank Blaschka buf->buffer->element[i].addr); 1197683d718aSFrank Blaschka buf->is_header[i] = 0; 11984a71df50SFrank Blaschka } 11993b346c18SJulian Wiedmann 12003b346c18SJulian Wiedmann qeth_scrub_qdio_buffer(buf->buffer, 12013b346c18SJulian Wiedmann QETH_MAX_BUFFER_ELEMENTS(queue->card)); 12024a71df50SFrank Blaschka buf->next_element_to_fill = 0; 12033b346c18SJulian Wiedmann atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY); 12040da9581dSEinar Lueck } 12050da9581dSEinar Lueck 12060da9581dSEinar Lueck static void qeth_clear_outq_buffers(struct qeth_qdio_out_q *q, int free) 12070da9581dSEinar Lueck { 12080da9581dSEinar Lueck int j; 12090da9581dSEinar Lueck 12100da9581dSEinar Lueck for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { 12110da9581dSEinar Lueck if (!q->bufs[j]) 12120da9581dSEinar Lueck continue; 121372861ae7SEinar Lueck qeth_cleanup_handled_pending(q, j, 1); 12143b346c18SJulian Wiedmann qeth_clear_output_buffer(q, q->bufs[j]); 12150da9581dSEinar Lueck if (free) { 12160da9581dSEinar Lueck kmem_cache_free(qeth_qdio_outbuf_cache, q->bufs[j]); 12170da9581dSEinar Lueck q->bufs[j] = NULL; 12180da9581dSEinar Lueck } 12190da9581dSEinar Lueck } 12204a71df50SFrank Blaschka } 12214a71df50SFrank Blaschka 12224a71df50SFrank Blaschka void qeth_clear_qdio_buffers(struct qeth_card *card) 12234a71df50SFrank Blaschka { 12240da9581dSEinar Lueck int i; 12254a71df50SFrank Blaschka 1226847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "clearqdbf"); 12274a71df50SFrank Blaschka /* clear outbound buffers to free skbs */ 12280da9581dSEinar Lueck for (i = 0; i < card->qdio.no_out_queues; ++i) { 12294a71df50SFrank Blaschka if (card->qdio.out_qs[i]) { 12300da9581dSEinar Lueck qeth_clear_outq_buffers(card->qdio.out_qs[i], 0); 12310da9581dSEinar Lueck } 12324a71df50SFrank Blaschka } 12334a71df50SFrank Blaschka } 12344a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers); 12354a71df50SFrank Blaschka 12364a71df50SFrank Blaschka static void qeth_free_buffer_pool(struct qeth_card *card) 12374a71df50SFrank Blaschka { 12384a71df50SFrank Blaschka struct qeth_buffer_pool_entry *pool_entry, *tmp; 12394a71df50SFrank Blaschka int i = 0; 12404a71df50SFrank Blaschka list_for_each_entry_safe(pool_entry, tmp, 12414a71df50SFrank Blaschka &card->qdio.init_pool.entry_list, init_list){ 12424a71df50SFrank Blaschka for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) 12434a71df50SFrank Blaschka free_page((unsigned long)pool_entry->elements[i]); 12444a71df50SFrank Blaschka list_del(&pool_entry->init_list); 12454a71df50SFrank Blaschka kfree(pool_entry); 12464a71df50SFrank Blaschka } 12474a71df50SFrank Blaschka } 12484a71df50SFrank Blaschka 12494a71df50SFrank Blaschka static void qeth_clean_channel(struct qeth_channel *channel) 12504a71df50SFrank Blaschka { 1251121ca39aSJulian Wiedmann struct ccw_device *cdev = channel->ccwdev; 12524a71df50SFrank Blaschka int cnt; 12534a71df50SFrank Blaschka 1254d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "freech"); 1255121ca39aSJulian Wiedmann 1256121ca39aSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(cdev)); 1257121ca39aSJulian Wiedmann cdev->handler = NULL; 1258121ca39aSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(cdev)); 1259121ca39aSJulian Wiedmann 12604a71df50SFrank Blaschka for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) 12614a71df50SFrank Blaschka kfree(channel->iob[cnt].data); 1262f15cdaf2SJulian Wiedmann kfree(channel->ccw); 12634a71df50SFrank Blaschka } 12644a71df50SFrank Blaschka 1265121ca39aSJulian Wiedmann static int qeth_setup_channel(struct qeth_channel *channel, bool alloc_buffers) 1266121ca39aSJulian Wiedmann { 1267121ca39aSJulian Wiedmann struct ccw_device *cdev = channel->ccwdev; 1268121ca39aSJulian Wiedmann int cnt; 1269121ca39aSJulian Wiedmann 1270121ca39aSJulian Wiedmann QETH_DBF_TEXT(SETUP, 2, "setupch"); 1271121ca39aSJulian Wiedmann 1272121ca39aSJulian Wiedmann channel->ccw = kmalloc(sizeof(struct ccw1), GFP_KERNEL | GFP_DMA); 1273121ca39aSJulian Wiedmann if (!channel->ccw) 1274121ca39aSJulian Wiedmann return -ENOMEM; 1275121ca39aSJulian Wiedmann channel->state = CH_STATE_DOWN; 1276121ca39aSJulian Wiedmann atomic_set(&channel->irq_pending, 0); 1277121ca39aSJulian Wiedmann init_waitqueue_head(&channel->wait_q); 1278121ca39aSJulian Wiedmann 1279121ca39aSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(cdev)); 1280121ca39aSJulian Wiedmann cdev->handler = qeth_irq; 1281121ca39aSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(cdev)); 1282121ca39aSJulian Wiedmann 1283121ca39aSJulian Wiedmann if (!alloc_buffers) 1284121ca39aSJulian Wiedmann return 0; 1285121ca39aSJulian Wiedmann 1286121ca39aSJulian Wiedmann for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) { 1287500abbf0SJulian Wiedmann channel->iob[cnt].data = kmalloc(QETH_BUFSIZE, 1288500abbf0SJulian Wiedmann GFP_KERNEL | GFP_DMA); 1289121ca39aSJulian Wiedmann if (channel->iob[cnt].data == NULL) 1290121ca39aSJulian Wiedmann break; 1291121ca39aSJulian Wiedmann channel->iob[cnt].state = BUF_STATE_FREE; 1292121ca39aSJulian Wiedmann channel->iob[cnt].channel = channel; 1293121ca39aSJulian Wiedmann channel->iob[cnt].callback = qeth_send_control_data_cb; 1294121ca39aSJulian Wiedmann } 1295121ca39aSJulian Wiedmann if (cnt < QETH_CMD_BUFFER_NO) { 1296121ca39aSJulian Wiedmann qeth_clean_channel(channel); 1297121ca39aSJulian Wiedmann return -ENOMEM; 1298121ca39aSJulian Wiedmann } 1299121ca39aSJulian Wiedmann channel->io_buf_no = 0; 1300121ca39aSJulian Wiedmann spin_lock_init(&channel->iob_lock); 1301121ca39aSJulian Wiedmann 1302121ca39aSJulian Wiedmann return 0; 1303121ca39aSJulian Wiedmann } 1304121ca39aSJulian Wiedmann 1305725b9c04SSebastian Ott static void qeth_set_single_write_queues(struct qeth_card *card) 1306725b9c04SSebastian Ott { 1307725b9c04SSebastian Ott if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) && 1308725b9c04SSebastian Ott (card->qdio.no_out_queues == 4)) 1309725b9c04SSebastian Ott qeth_free_qdio_buffers(card); 1310725b9c04SSebastian Ott 1311725b9c04SSebastian Ott card->qdio.no_out_queues = 1; 1312725b9c04SSebastian Ott if (card->qdio.default_out_queue != 0) 1313725b9c04SSebastian Ott dev_info(&card->gdev->dev, "Priority Queueing not supported\n"); 1314725b9c04SSebastian Ott 1315725b9c04SSebastian Ott card->qdio.default_out_queue = 0; 1316725b9c04SSebastian Ott } 1317725b9c04SSebastian Ott 1318725b9c04SSebastian Ott static void qeth_set_multiple_write_queues(struct qeth_card *card) 1319725b9c04SSebastian Ott { 1320725b9c04SSebastian Ott if ((atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) && 1321725b9c04SSebastian Ott (card->qdio.no_out_queues == 1)) { 1322725b9c04SSebastian Ott qeth_free_qdio_buffers(card); 1323725b9c04SSebastian Ott card->qdio.default_out_queue = 2; 1324725b9c04SSebastian Ott } 1325725b9c04SSebastian Ott card->qdio.no_out_queues = 4; 1326725b9c04SSebastian Ott } 1327725b9c04SSebastian Ott 1328725b9c04SSebastian Ott static void qeth_update_from_chp_desc(struct qeth_card *card) 13294a71df50SFrank Blaschka { 13304a71df50SFrank Blaschka struct ccw_device *ccwdev; 1331ded27d8dSSebastian Ott struct channel_path_desc_fmt0 *chp_dsc; 13324a71df50SFrank Blaschka 13335113fec0SUrsula Braun QETH_DBF_TEXT(SETUP, 2, "chp_desc"); 13344a71df50SFrank Blaschka 13354a71df50SFrank Blaschka ccwdev = card->data.ccwdev; 1336725b9c04SSebastian Ott chp_dsc = ccw_device_get_chp_desc(ccwdev, 0); 1337725b9c04SSebastian Ott if (!chp_dsc) 1338725b9c04SSebastian Ott goto out; 1339725b9c04SSebastian Ott 1340d0ff1f52SUrsula Braun card->info.func_level = 0x4100 + chp_dsc->desc; 1341725b9c04SSebastian Ott if (card->info.type == QETH_CARD_TYPE_IQD) 1342725b9c04SSebastian Ott goto out; 1343725b9c04SSebastian Ott 1344725b9c04SSebastian Ott /* CHPP field bit 6 == 1 -> single queue */ 1345725b9c04SSebastian Ott if ((chp_dsc->chpp & 0x02) == 0x02) 1346725b9c04SSebastian Ott qeth_set_single_write_queues(card); 1347725b9c04SSebastian Ott else 1348725b9c04SSebastian Ott qeth_set_multiple_write_queues(card); 1349725b9c04SSebastian Ott out: 1350d0ff1f52SUrsula Braun kfree(chp_dsc); 13515113fec0SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "nr:%x", card->qdio.no_out_queues); 13525113fec0SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "lvl:%02x", card->info.func_level); 13534a71df50SFrank Blaschka } 13544a71df50SFrank Blaschka 13554a71df50SFrank Blaschka static void qeth_init_qdio_info(struct qeth_card *card) 13564a71df50SFrank Blaschka { 1357d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 4, "intqdinf"); 13584a71df50SFrank Blaschka atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); 135995f4d8b7SJulian Wiedmann card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT; 136095f4d8b7SJulian Wiedmann card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; 136195f4d8b7SJulian Wiedmann card->qdio.no_out_queues = QETH_MAX_QUEUES; 136295f4d8b7SJulian Wiedmann 13634a71df50SFrank Blaschka /* inbound */ 1364ed2e93efSJulian Wiedmann card->qdio.no_in_queues = 1; 13654a71df50SFrank Blaschka card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT; 1366dcf4ae2dSFrank Blaschka if (card->info.type == QETH_CARD_TYPE_IQD) 1367dcf4ae2dSFrank Blaschka card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_HSDEFAULT; 1368dcf4ae2dSFrank Blaschka else 13694a71df50SFrank Blaschka card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT; 13704a71df50SFrank Blaschka card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count; 13714a71df50SFrank Blaschka INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list); 13724a71df50SFrank Blaschka INIT_LIST_HEAD(&card->qdio.init_pool.entry_list); 13734a71df50SFrank Blaschka } 13744a71df50SFrank Blaschka 137595f4d8b7SJulian Wiedmann static void qeth_set_initial_options(struct qeth_card *card) 13764a71df50SFrank Blaschka { 13774a71df50SFrank Blaschka card->options.route4.type = NO_ROUTER; 13784a71df50SFrank Blaschka card->options.route6.type = NO_ROUTER; 13794a71df50SFrank Blaschka card->options.rx_sg_cb = QETH_RX_SG_CB; 1380d64ecc22SEinar Lueck card->options.isolation = ISOLATION_MODE_NONE; 13810da9581dSEinar Lueck card->options.cq = QETH_CQ_DISABLED; 13824fda3354SJulian Wiedmann card->options.layer = QETH_DISCIPLINE_UNDETERMINED; 13834a71df50SFrank Blaschka } 13844a71df50SFrank Blaschka 13854a71df50SFrank Blaschka static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread) 13864a71df50SFrank Blaschka { 13874a71df50SFrank Blaschka unsigned long flags; 13884a71df50SFrank Blaschka int rc = 0; 13894a71df50SFrank Blaschka 13904a71df50SFrank Blaschka spin_lock_irqsave(&card->thread_mask_lock, flags); 1391847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 4, " %02x%02x%02x", 13924a71df50SFrank Blaschka (u8) card->thread_start_mask, 13934a71df50SFrank Blaschka (u8) card->thread_allowed_mask, 13944a71df50SFrank Blaschka (u8) card->thread_running_mask); 13954a71df50SFrank Blaschka rc = (card->thread_start_mask & thread); 13964a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 13974a71df50SFrank Blaschka return rc; 13984a71df50SFrank Blaschka } 13994a71df50SFrank Blaschka 14004a71df50SFrank Blaschka static void qeth_start_kernel_thread(struct work_struct *work) 14014a71df50SFrank Blaschka { 14023f36b890SFrank Blaschka struct task_struct *ts; 14034a71df50SFrank Blaschka struct qeth_card *card = container_of(work, struct qeth_card, 14044a71df50SFrank Blaschka kernel_thread_starter); 1405847a50fdSCarsten Otte QETH_CARD_TEXT(card , 2, "strthrd"); 14064a71df50SFrank Blaschka 14074a71df50SFrank Blaschka if (card->read.state != CH_STATE_UP && 14084a71df50SFrank Blaschka card->write.state != CH_STATE_UP) 14094a71df50SFrank Blaschka return; 14103f36b890SFrank Blaschka if (qeth_do_start_thread(card, QETH_RECOVER_THREAD)) { 1411c041f2d4SSebastian Ott ts = kthread_run(card->discipline->recover, (void *)card, 14124a71df50SFrank Blaschka "qeth_recover"); 14133f36b890SFrank Blaschka if (IS_ERR(ts)) { 14143f36b890SFrank Blaschka qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); 14153f36b890SFrank Blaschka qeth_clear_thread_running_bit(card, 14163f36b890SFrank Blaschka QETH_RECOVER_THREAD); 14173f36b890SFrank Blaschka } 14183f36b890SFrank Blaschka } 14194a71df50SFrank Blaschka } 14204a71df50SFrank Blaschka 1421bca51650SThomas Richter static void qeth_buffer_reclaim_work(struct work_struct *); 142295f4d8b7SJulian Wiedmann static void qeth_setup_card(struct qeth_card *card) 14234a71df50SFrank Blaschka { 1424d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "setupcrd"); 1425d11ba0c4SPeter Tiedemann QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); 14264a71df50SFrank Blaschka 142795f4d8b7SJulian Wiedmann card->info.type = CARD_RDEV(card)->id.driver_info; 14284a71df50SFrank Blaschka card->state = CARD_STATE_DOWN; 14294a71df50SFrank Blaschka spin_lock_init(&card->mclock); 14304a71df50SFrank Blaschka spin_lock_init(&card->lock); 14314a71df50SFrank Blaschka spin_lock_init(&card->ip_lock); 14324a71df50SFrank Blaschka spin_lock_init(&card->thread_mask_lock); 1433c4949f07SFrank Blaschka mutex_init(&card->conf_mutex); 14349dc48cccSUrsula Braun mutex_init(&card->discipline_mutex); 14354a71df50SFrank Blaschka INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread); 14364a71df50SFrank Blaschka INIT_LIST_HEAD(&card->cmd_waiter_list); 14374a71df50SFrank Blaschka init_waitqueue_head(&card->wait_q); 143895f4d8b7SJulian Wiedmann qeth_set_initial_options(card); 14394a71df50SFrank Blaschka /* IP address takeover */ 14404a71df50SFrank Blaschka INIT_LIST_HEAD(&card->ipato.entries); 14414a71df50SFrank Blaschka qeth_init_qdio_info(card); 1442b3332930SFrank Blaschka INIT_DELAYED_WORK(&card->buffer_reclaim_work, qeth_buffer_reclaim_work); 14430f54761dSStefan Raspl INIT_WORK(&card->close_dev_work, qeth_close_dev_handler); 14444a71df50SFrank Blaschka } 14454a71df50SFrank Blaschka 14466bcac508SMartin Schwidefsky static void qeth_core_sl_print(struct seq_file *m, struct service_level *slr) 14476bcac508SMartin Schwidefsky { 14486bcac508SMartin Schwidefsky struct qeth_card *card = container_of(slr, struct qeth_card, 14496bcac508SMartin Schwidefsky qeth_service_level); 14500d788c7dSKlaus-Dieter Wacker if (card->info.mcl_level[0]) 14510d788c7dSKlaus-Dieter Wacker seq_printf(m, "qeth: %s firmware level %s\n", 14520d788c7dSKlaus-Dieter Wacker CARD_BUS_ID(card), card->info.mcl_level); 14536bcac508SMartin Schwidefsky } 14546bcac508SMartin Schwidefsky 1455121ca39aSJulian Wiedmann static struct qeth_card *qeth_alloc_card(struct ccwgroup_device *gdev) 14564a71df50SFrank Blaschka { 14574a71df50SFrank Blaschka struct qeth_card *card; 14584a71df50SFrank Blaschka 1459d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "alloccrd"); 1460f15cdaf2SJulian Wiedmann card = kzalloc(sizeof(*card), GFP_KERNEL); 14614a71df50SFrank Blaschka if (!card) 146276b11f8eSUrsula Braun goto out; 1463d11ba0c4SPeter Tiedemann QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); 1464121ca39aSJulian Wiedmann 1465121ca39aSJulian Wiedmann card->gdev = gdev; 1466a2eb0ad5SJulian Wiedmann dev_set_drvdata(&gdev->dev, card); 1467121ca39aSJulian Wiedmann CARD_RDEV(card) = gdev->cdev[0]; 1468121ca39aSJulian Wiedmann CARD_WDEV(card) = gdev->cdev[1]; 1469121ca39aSJulian Wiedmann CARD_DDEV(card) = gdev->cdev[2]; 1470c0a2e4d1SJulian Wiedmann 1471c0a2e4d1SJulian Wiedmann card->event_wq = alloc_ordered_workqueue("%s", 0, dev_name(&gdev->dev)); 1472c0a2e4d1SJulian Wiedmann if (!card->event_wq) 1473c0a2e4d1SJulian Wiedmann goto out_wq; 147424142fd8SJulian Wiedmann if (qeth_setup_channel(&card->read, true)) 147576b11f8eSUrsula Braun goto out_ip; 147624142fd8SJulian Wiedmann if (qeth_setup_channel(&card->write, true)) 147776b11f8eSUrsula Braun goto out_channel; 147824142fd8SJulian Wiedmann if (qeth_setup_channel(&card->data, false)) 147924142fd8SJulian Wiedmann goto out_data; 14806bcac508SMartin Schwidefsky card->qeth_service_level.seq_print = qeth_core_sl_print; 14816bcac508SMartin Schwidefsky register_service_level(&card->qeth_service_level); 14824a71df50SFrank Blaschka return card; 148376b11f8eSUrsula Braun 148424142fd8SJulian Wiedmann out_data: 148524142fd8SJulian Wiedmann qeth_clean_channel(&card->write); 148676b11f8eSUrsula Braun out_channel: 148776b11f8eSUrsula Braun qeth_clean_channel(&card->read); 148876b11f8eSUrsula Braun out_ip: 1489c0a2e4d1SJulian Wiedmann destroy_workqueue(card->event_wq); 1490c0a2e4d1SJulian Wiedmann out_wq: 1491a2eb0ad5SJulian Wiedmann dev_set_drvdata(&gdev->dev, NULL); 149276b11f8eSUrsula Braun kfree(card); 149376b11f8eSUrsula Braun out: 149476b11f8eSUrsula Braun return NULL; 14954a71df50SFrank Blaschka } 14964a71df50SFrank Blaschka 14978d908eb0SJulian Wiedmann static int qeth_clear_channel(struct qeth_card *card, 14988d908eb0SJulian Wiedmann struct qeth_channel *channel) 14994a71df50SFrank Blaschka { 15004a71df50SFrank Blaschka int rc; 15014a71df50SFrank Blaschka 1502847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "clearch"); 1503ed47155bSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(channel->ccwdev)); 15044a71df50SFrank Blaschka rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM); 1505ed47155bSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(channel->ccwdev)); 15064a71df50SFrank Blaschka 15074a71df50SFrank Blaschka if (rc) 15084a71df50SFrank Blaschka return rc; 15094a71df50SFrank Blaschka rc = wait_event_interruptible_timeout(card->wait_q, 15104a71df50SFrank Blaschka channel->state == CH_STATE_STOPPED, QETH_TIMEOUT); 15114a71df50SFrank Blaschka if (rc == -ERESTARTSYS) 15124a71df50SFrank Blaschka return rc; 15134a71df50SFrank Blaschka if (channel->state != CH_STATE_STOPPED) 15144a71df50SFrank Blaschka return -ETIME; 15154a71df50SFrank Blaschka channel->state = CH_STATE_DOWN; 15164a71df50SFrank Blaschka return 0; 15174a71df50SFrank Blaschka } 15184a71df50SFrank Blaschka 15198d908eb0SJulian Wiedmann static int qeth_halt_channel(struct qeth_card *card, 15208d908eb0SJulian Wiedmann struct qeth_channel *channel) 15214a71df50SFrank Blaschka { 15224a71df50SFrank Blaschka int rc; 15234a71df50SFrank Blaschka 1524847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "haltch"); 1525ed47155bSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(channel->ccwdev)); 15264a71df50SFrank Blaschka rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM); 1527ed47155bSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(channel->ccwdev)); 15284a71df50SFrank Blaschka 15294a71df50SFrank Blaschka if (rc) 15304a71df50SFrank Blaschka return rc; 15314a71df50SFrank Blaschka rc = wait_event_interruptible_timeout(card->wait_q, 15324a71df50SFrank Blaschka channel->state == CH_STATE_HALTED, QETH_TIMEOUT); 15334a71df50SFrank Blaschka if (rc == -ERESTARTSYS) 15344a71df50SFrank Blaschka return rc; 15354a71df50SFrank Blaschka if (channel->state != CH_STATE_HALTED) 15364a71df50SFrank Blaschka return -ETIME; 15374a71df50SFrank Blaschka return 0; 15384a71df50SFrank Blaschka } 15394a71df50SFrank Blaschka 15404a71df50SFrank Blaschka static int qeth_halt_channels(struct qeth_card *card) 15414a71df50SFrank Blaschka { 15424a71df50SFrank Blaschka int rc1 = 0, rc2 = 0, rc3 = 0; 15434a71df50SFrank Blaschka 1544847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "haltchs"); 15458d908eb0SJulian Wiedmann rc1 = qeth_halt_channel(card, &card->read); 15468d908eb0SJulian Wiedmann rc2 = qeth_halt_channel(card, &card->write); 15478d908eb0SJulian Wiedmann rc3 = qeth_halt_channel(card, &card->data); 15484a71df50SFrank Blaschka if (rc1) 15494a71df50SFrank Blaschka return rc1; 15504a71df50SFrank Blaschka if (rc2) 15514a71df50SFrank Blaschka return rc2; 15524a71df50SFrank Blaschka return rc3; 15534a71df50SFrank Blaschka } 15544a71df50SFrank Blaschka 15554a71df50SFrank Blaschka static int qeth_clear_channels(struct qeth_card *card) 15564a71df50SFrank Blaschka { 15574a71df50SFrank Blaschka int rc1 = 0, rc2 = 0, rc3 = 0; 15584a71df50SFrank Blaschka 1559847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "clearchs"); 15608d908eb0SJulian Wiedmann rc1 = qeth_clear_channel(card, &card->read); 15618d908eb0SJulian Wiedmann rc2 = qeth_clear_channel(card, &card->write); 15628d908eb0SJulian Wiedmann rc3 = qeth_clear_channel(card, &card->data); 15634a71df50SFrank Blaschka if (rc1) 15644a71df50SFrank Blaschka return rc1; 15654a71df50SFrank Blaschka if (rc2) 15664a71df50SFrank Blaschka return rc2; 15674a71df50SFrank Blaschka return rc3; 15684a71df50SFrank Blaschka } 15694a71df50SFrank Blaschka 15704a71df50SFrank Blaschka static int qeth_clear_halt_card(struct qeth_card *card, int halt) 15714a71df50SFrank Blaschka { 15724a71df50SFrank Blaschka int rc = 0; 15734a71df50SFrank Blaschka 1574847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "clhacrd"); 15754a71df50SFrank Blaschka 15764a71df50SFrank Blaschka if (halt) 15774a71df50SFrank Blaschka rc = qeth_halt_channels(card); 15784a71df50SFrank Blaschka if (rc) 15794a71df50SFrank Blaschka return rc; 15804a71df50SFrank Blaschka return qeth_clear_channels(card); 15814a71df50SFrank Blaschka } 15824a71df50SFrank Blaschka 15834a71df50SFrank Blaschka int qeth_qdio_clear_card(struct qeth_card *card, int use_halt) 15844a71df50SFrank Blaschka { 15854a71df50SFrank Blaschka int rc = 0; 15864a71df50SFrank Blaschka 1587847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "qdioclr"); 15884a71df50SFrank Blaschka switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED, 15894a71df50SFrank Blaschka QETH_QDIO_CLEANING)) { 15904a71df50SFrank Blaschka case QETH_QDIO_ESTABLISHED: 15914a71df50SFrank Blaschka if (card->info.type == QETH_CARD_TYPE_IQD) 1592cc961d40SJan Glauber rc = qdio_shutdown(CARD_DDEV(card), 15934a71df50SFrank Blaschka QDIO_FLAG_CLEANUP_USING_HALT); 15944a71df50SFrank Blaschka else 1595cc961d40SJan Glauber rc = qdio_shutdown(CARD_DDEV(card), 15964a71df50SFrank Blaschka QDIO_FLAG_CLEANUP_USING_CLEAR); 15974a71df50SFrank Blaschka if (rc) 1598847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 3, "1err%d", rc); 15994a71df50SFrank Blaschka atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); 16004a71df50SFrank Blaschka break; 16014a71df50SFrank Blaschka case QETH_QDIO_CLEANING: 16024a71df50SFrank Blaschka return rc; 16034a71df50SFrank Blaschka default: 16044a71df50SFrank Blaschka break; 16054a71df50SFrank Blaschka } 16064a71df50SFrank Blaschka rc = qeth_clear_halt_card(card, use_halt); 16074a71df50SFrank Blaschka if (rc) 1608847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 3, "2err%d", rc); 16094a71df50SFrank Blaschka card->state = CARD_STATE_DOWN; 16104a71df50SFrank Blaschka return rc; 16114a71df50SFrank Blaschka } 16124a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_qdio_clear_card); 16134a71df50SFrank Blaschka 16144a71df50SFrank Blaschka static int qeth_read_conf_data(struct qeth_card *card, void **buffer, 16154a71df50SFrank Blaschka int *length) 16164a71df50SFrank Blaschka { 16174a71df50SFrank Blaschka struct ciw *ciw; 16184a71df50SFrank Blaschka char *rcd_buf; 16194a71df50SFrank Blaschka int ret; 16204a71df50SFrank Blaschka struct qeth_channel *channel = &card->data; 16214a71df50SFrank Blaschka 16224a71df50SFrank Blaschka /* 16234a71df50SFrank Blaschka * scan for RCD command in extended SenseID data 16244a71df50SFrank Blaschka */ 16254a71df50SFrank Blaschka ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD); 16264a71df50SFrank Blaschka if (!ciw || ciw->cmd == 0) 16274a71df50SFrank Blaschka return -EOPNOTSUPP; 16284a71df50SFrank Blaschka rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA); 16294a71df50SFrank Blaschka if (!rcd_buf) 16304a71df50SFrank Blaschka return -ENOMEM; 16314a71df50SFrank Blaschka 1632f15cdaf2SJulian Wiedmann qeth_setup_ccw(channel->ccw, ciw->cmd, ciw->count, rcd_buf); 16334a71df50SFrank Blaschka channel->state = CH_STATE_RCD; 1634ed47155bSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(channel->ccwdev)); 1635f15cdaf2SJulian Wiedmann ret = ccw_device_start_timeout(channel->ccwdev, channel->ccw, 16364a71df50SFrank Blaschka QETH_RCD_PARM, LPM_ANYPATH, 0, 16374a71df50SFrank Blaschka QETH_RCD_TIMEOUT); 1638ed47155bSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(channel->ccwdev)); 16394a71df50SFrank Blaschka if (!ret) 16404a71df50SFrank Blaschka wait_event(card->wait_q, 16414a71df50SFrank Blaschka (channel->state == CH_STATE_RCD_DONE || 16424a71df50SFrank Blaschka channel->state == CH_STATE_DOWN)); 16434a71df50SFrank Blaschka if (channel->state == CH_STATE_DOWN) 16444a71df50SFrank Blaschka ret = -EIO; 16454a71df50SFrank Blaschka else 16464a71df50SFrank Blaschka channel->state = CH_STATE_DOWN; 16474a71df50SFrank Blaschka if (ret) { 16484a71df50SFrank Blaschka kfree(rcd_buf); 16494a71df50SFrank Blaschka *buffer = NULL; 16504a71df50SFrank Blaschka *length = 0; 16514a71df50SFrank Blaschka } else { 16524a71df50SFrank Blaschka *length = ciw->count; 16534a71df50SFrank Blaschka *buffer = rcd_buf; 16544a71df50SFrank Blaschka } 16554a71df50SFrank Blaschka return ret; 16564a71df50SFrank Blaschka } 16574a71df50SFrank Blaschka 1658a60389abSEinar Lueck static void qeth_configure_unitaddr(struct qeth_card *card, char *prcd) 16594a71df50SFrank Blaschka { 1660a60389abSEinar Lueck QETH_DBF_TEXT(SETUP, 2, "cfgunit"); 16614a71df50SFrank Blaschka card->info.chpid = prcd[30]; 16624a71df50SFrank Blaschka card->info.unit_addr2 = prcd[31]; 16634a71df50SFrank Blaschka card->info.cula = prcd[63]; 16644a71df50SFrank Blaschka card->info.guestlan = ((prcd[0x10] == _ascebc['V']) && 16654a71df50SFrank Blaschka (prcd[0x11] == _ascebc['M'])); 1666a60389abSEinar Lueck } 1667a60389abSEinar Lueck 1668615dff22SJulian Wiedmann static enum qeth_discipline_id qeth_vm_detect_layer(struct qeth_card *card) 1669615dff22SJulian Wiedmann { 1670615dff22SJulian Wiedmann enum qeth_discipline_id disc = QETH_DISCIPLINE_UNDETERMINED; 1671615dff22SJulian Wiedmann struct diag26c_vnic_resp *response = NULL; 1672615dff22SJulian Wiedmann struct diag26c_vnic_req *request = NULL; 1673615dff22SJulian Wiedmann struct ccw_dev_id id; 1674615dff22SJulian Wiedmann char userid[80]; 1675615dff22SJulian Wiedmann int rc = 0; 1676615dff22SJulian Wiedmann 1677615dff22SJulian Wiedmann QETH_DBF_TEXT(SETUP, 2, "vmlayer"); 1678615dff22SJulian Wiedmann 1679615dff22SJulian Wiedmann cpcmd("QUERY USERID", userid, sizeof(userid), &rc); 1680615dff22SJulian Wiedmann if (rc) 1681615dff22SJulian Wiedmann goto out; 1682615dff22SJulian Wiedmann 1683615dff22SJulian Wiedmann request = kzalloc(sizeof(*request), GFP_KERNEL | GFP_DMA); 1684615dff22SJulian Wiedmann response = kzalloc(sizeof(*response), GFP_KERNEL | GFP_DMA); 1685615dff22SJulian Wiedmann if (!request || !response) { 1686615dff22SJulian Wiedmann rc = -ENOMEM; 1687615dff22SJulian Wiedmann goto out; 1688615dff22SJulian Wiedmann } 1689615dff22SJulian Wiedmann 1690615dff22SJulian Wiedmann ccw_device_get_id(CARD_RDEV(card), &id); 1691615dff22SJulian Wiedmann request->resp_buf_len = sizeof(*response); 1692615dff22SJulian Wiedmann request->resp_version = DIAG26C_VERSION6_VM65918; 1693615dff22SJulian Wiedmann request->req_format = DIAG26C_VNIC_INFO; 1694615dff22SJulian Wiedmann ASCEBC(userid, 8); 1695615dff22SJulian Wiedmann memcpy(&request->sys_name, userid, 8); 1696615dff22SJulian Wiedmann request->devno = id.devno; 1697615dff22SJulian Wiedmann 1698615dff22SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, request, sizeof(*request)); 1699615dff22SJulian Wiedmann rc = diag26c(request, response, DIAG26C_PORT_VNIC); 1700615dff22SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, request, sizeof(*request)); 1701615dff22SJulian Wiedmann if (rc) 1702615dff22SJulian Wiedmann goto out; 1703615dff22SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, response, sizeof(*response)); 1704615dff22SJulian Wiedmann 1705615dff22SJulian Wiedmann if (request->resp_buf_len < sizeof(*response) || 1706615dff22SJulian Wiedmann response->version != request->resp_version) { 1707615dff22SJulian Wiedmann rc = -EIO; 1708615dff22SJulian Wiedmann goto out; 1709615dff22SJulian Wiedmann } 1710615dff22SJulian Wiedmann 1711615dff22SJulian Wiedmann if (response->protocol == VNIC_INFO_PROT_L2) 1712615dff22SJulian Wiedmann disc = QETH_DISCIPLINE_LAYER2; 1713615dff22SJulian Wiedmann else if (response->protocol == VNIC_INFO_PROT_L3) 1714615dff22SJulian Wiedmann disc = QETH_DISCIPLINE_LAYER3; 1715615dff22SJulian Wiedmann 1716615dff22SJulian Wiedmann out: 1717615dff22SJulian Wiedmann kfree(response); 1718615dff22SJulian Wiedmann kfree(request); 1719615dff22SJulian Wiedmann if (rc) 1720615dff22SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "err%x", rc); 1721615dff22SJulian Wiedmann return disc; 1722615dff22SJulian Wiedmann } 1723615dff22SJulian Wiedmann 1724c70eb09dSJulian Wiedmann /* Determine whether the device requires a specific layer discipline */ 1725c70eb09dSJulian Wiedmann static enum qeth_discipline_id qeth_enforce_discipline(struct qeth_card *card) 1726c70eb09dSJulian Wiedmann { 1727615dff22SJulian Wiedmann enum qeth_discipline_id disc = QETH_DISCIPLINE_UNDETERMINED; 1728615dff22SJulian Wiedmann 1729c70eb09dSJulian Wiedmann if (card->info.type == QETH_CARD_TYPE_OSM || 1730615dff22SJulian Wiedmann card->info.type == QETH_CARD_TYPE_OSN) 1731615dff22SJulian Wiedmann disc = QETH_DISCIPLINE_LAYER2; 1732615dff22SJulian Wiedmann else if (card->info.guestlan) 1733615dff22SJulian Wiedmann disc = (card->info.type == QETH_CARD_TYPE_IQD) ? 1734615dff22SJulian Wiedmann QETH_DISCIPLINE_LAYER3 : 1735615dff22SJulian Wiedmann qeth_vm_detect_layer(card); 1736615dff22SJulian Wiedmann 1737615dff22SJulian Wiedmann switch (disc) { 1738615dff22SJulian Wiedmann case QETH_DISCIPLINE_LAYER2: 1739c70eb09dSJulian Wiedmann QETH_DBF_TEXT(SETUP, 3, "force l2"); 1740615dff22SJulian Wiedmann break; 1741615dff22SJulian Wiedmann case QETH_DISCIPLINE_LAYER3: 1742c70eb09dSJulian Wiedmann QETH_DBF_TEXT(SETUP, 3, "force l3"); 1743615dff22SJulian Wiedmann break; 1744615dff22SJulian Wiedmann default: 1745615dff22SJulian Wiedmann QETH_DBF_TEXT(SETUP, 3, "force no"); 1746c70eb09dSJulian Wiedmann } 1747c70eb09dSJulian Wiedmann 1748615dff22SJulian Wiedmann return disc; 1749c70eb09dSJulian Wiedmann } 1750c70eb09dSJulian Wiedmann 1751a60389abSEinar Lueck static void qeth_configure_blkt_default(struct qeth_card *card, char *prcd) 1752a60389abSEinar Lueck { 1753a60389abSEinar Lueck QETH_DBF_TEXT(SETUP, 2, "cfgblkt"); 1754a60389abSEinar Lueck 1755e6e056baSStefan Raspl if (prcd[74] == 0xF0 && prcd[75] == 0xF0 && 1756a0c98523SUrsula Braun prcd[76] >= 0xF1 && prcd[76] <= 0xF4) { 1757a60389abSEinar Lueck card->info.blkt.time_total = 0; 1758a60389abSEinar Lueck card->info.blkt.inter_packet = 0; 1759a60389abSEinar Lueck card->info.blkt.inter_packet_jumbo = 0; 1760a0c98523SUrsula Braun } else { 1761a0c98523SUrsula Braun card->info.blkt.time_total = 250; 1762a0c98523SUrsula Braun card->info.blkt.inter_packet = 5; 1763a0c98523SUrsula Braun card->info.blkt.inter_packet_jumbo = 15; 1764a60389abSEinar Lueck } 17654a71df50SFrank Blaschka } 17664a71df50SFrank Blaschka 17674a71df50SFrank Blaschka static void qeth_init_tokens(struct qeth_card *card) 17684a71df50SFrank Blaschka { 17694a71df50SFrank Blaschka card->token.issuer_rm_w = 0x00010103UL; 17704a71df50SFrank Blaschka card->token.cm_filter_w = 0x00010108UL; 17714a71df50SFrank Blaschka card->token.cm_connection_w = 0x0001010aUL; 17724a71df50SFrank Blaschka card->token.ulp_filter_w = 0x0001010bUL; 17734a71df50SFrank Blaschka card->token.ulp_connection_w = 0x0001010dUL; 17744a71df50SFrank Blaschka } 17754a71df50SFrank Blaschka 17764a71df50SFrank Blaschka static void qeth_init_func_level(struct qeth_card *card) 17774a71df50SFrank Blaschka { 17785113fec0SUrsula Braun switch (card->info.type) { 17795113fec0SUrsula Braun case QETH_CARD_TYPE_IQD: 17806298263aSKlaus-Dieter Wacker card->info.func_level = QETH_IDX_FUNC_LEVEL_IQD; 17815113fec0SUrsula Braun break; 17825113fec0SUrsula Braun case QETH_CARD_TYPE_OSD: 17830132951eSUrsula Braun case QETH_CARD_TYPE_OSN: 17845113fec0SUrsula Braun card->info.func_level = QETH_IDX_FUNC_LEVEL_OSD; 17855113fec0SUrsula Braun break; 17865113fec0SUrsula Braun default: 17875113fec0SUrsula Braun break; 17884a71df50SFrank Blaschka } 17894a71df50SFrank Blaschka } 17904a71df50SFrank Blaschka 17918d908eb0SJulian Wiedmann static int qeth_idx_activate_get_answer(struct qeth_card *card, 17928d908eb0SJulian Wiedmann struct qeth_channel *channel, 17938f6637b8SJulian Wiedmann void (*reply_cb)(struct qeth_card *, 17948f6637b8SJulian Wiedmann struct qeth_channel *, 17954a71df50SFrank Blaschka struct qeth_cmd_buffer *)) 17964a71df50SFrank Blaschka { 17974a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 17984a71df50SFrank Blaschka int rc; 17994a71df50SFrank Blaschka 1800d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "idxanswr"); 18014a71df50SFrank Blaschka iob = qeth_get_buffer(channel); 18021aec42bcSThomas Richter if (!iob) 18031aec42bcSThomas Richter return -ENOMEM; 18048f6637b8SJulian Wiedmann iob->callback = reply_cb; 1805f15cdaf2SJulian Wiedmann qeth_setup_ccw(channel->ccw, CCW_CMD_READ, QETH_BUFSIZE, iob->data); 18064a71df50SFrank Blaschka 18074a71df50SFrank Blaschka wait_event(card->wait_q, 18084a71df50SFrank Blaschka atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); 1809d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 6, "noirqpnd"); 1810ed47155bSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(channel->ccwdev)); 1811f15cdaf2SJulian Wiedmann rc = ccw_device_start_timeout(channel->ccwdev, channel->ccw, 1812db71bbbdSJulian Wiedmann (addr_t) iob, 0, 0, QETH_TIMEOUT); 1813ed47155bSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(channel->ccwdev)); 18144a71df50SFrank Blaschka 18154a71df50SFrank Blaschka if (rc) { 181614cc21b6SFrank Blaschka QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc); 1817d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); 18184a71df50SFrank Blaschka atomic_set(&channel->irq_pending, 0); 18195065b2ddSJulian Wiedmann qeth_release_buffer(channel, iob); 18204a71df50SFrank Blaschka wake_up(&card->wait_q); 18214a71df50SFrank Blaschka return rc; 18224a71df50SFrank Blaschka } 18234a71df50SFrank Blaschka rc = wait_event_interruptible_timeout(card->wait_q, 18244a71df50SFrank Blaschka channel->state == CH_STATE_UP, QETH_TIMEOUT); 18254a71df50SFrank Blaschka if (rc == -ERESTARTSYS) 18264a71df50SFrank Blaschka return rc; 18274a71df50SFrank Blaschka if (channel->state != CH_STATE_UP) { 18284a71df50SFrank Blaschka rc = -ETIME; 1829d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); 18304a71df50SFrank Blaschka } else 18314a71df50SFrank Blaschka rc = 0; 18324a71df50SFrank Blaschka return rc; 18334a71df50SFrank Blaschka } 18344a71df50SFrank Blaschka 18358d908eb0SJulian Wiedmann static int qeth_idx_activate_channel(struct qeth_card *card, 18368d908eb0SJulian Wiedmann struct qeth_channel *channel, 18378f6637b8SJulian Wiedmann void (*reply_cb)(struct qeth_card *, 18388f6637b8SJulian Wiedmann struct qeth_channel *, 18394a71df50SFrank Blaschka struct qeth_cmd_buffer *)) 18404a71df50SFrank Blaschka { 18414a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 18424a71df50SFrank Blaschka __u16 temp; 18434a71df50SFrank Blaschka __u8 tmp; 18444a71df50SFrank Blaschka int rc; 1845f06f6f32SCornelia Huck struct ccw_dev_id temp_devid; 18464a71df50SFrank Blaschka 1847d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "idxactch"); 18484a71df50SFrank Blaschka 18494a71df50SFrank Blaschka iob = qeth_get_buffer(channel); 18501aec42bcSThomas Richter if (!iob) 18511aec42bcSThomas Richter return -ENOMEM; 18528f6637b8SJulian Wiedmann iob->callback = reply_cb; 1853f15cdaf2SJulian Wiedmann qeth_setup_ccw(channel->ccw, CCW_CMD_WRITE, IDX_ACTIVATE_SIZE, 185445ca2fd6SJulian Wiedmann iob->data); 18554a71df50SFrank Blaschka if (channel == &card->write) { 18564a71df50SFrank Blaschka memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE); 18574a71df50SFrank Blaschka memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), 18584a71df50SFrank Blaschka &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); 18594a71df50SFrank Blaschka card->seqno.trans_hdr++; 18604a71df50SFrank Blaschka } else { 18614a71df50SFrank Blaschka memcpy(iob->data, IDX_ACTIVATE_READ, 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 } 186592d27209SJulian Wiedmann tmp = ((u8)card->dev->dev_port) | 0x80; 18664a71df50SFrank Blaschka memcpy(QETH_IDX_ACT_PNO(iob->data), &tmp, 1); 18674a71df50SFrank Blaschka memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data), 18684a71df50SFrank Blaschka &card->token.issuer_rm_w, QETH_MPC_TOKEN_LENGTH); 18694a71df50SFrank Blaschka memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data), 18704a71df50SFrank Blaschka &card->info.func_level, sizeof(__u16)); 1871f06f6f32SCornelia Huck ccw_device_get_id(CARD_DDEV(card), &temp_devid); 1872f06f6f32SCornelia Huck memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp_devid.devno, 2); 18734a71df50SFrank Blaschka temp = (card->info.cula << 8) + card->info.unit_addr2; 18744a71df50SFrank Blaschka memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2); 18754a71df50SFrank Blaschka 18764a71df50SFrank Blaschka wait_event(card->wait_q, 18774a71df50SFrank Blaschka atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); 1878d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 6, "noirqpnd"); 1879ed47155bSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(channel->ccwdev)); 1880f15cdaf2SJulian Wiedmann rc = ccw_device_start_timeout(channel->ccwdev, channel->ccw, 1881db71bbbdSJulian Wiedmann (addr_t) iob, 0, 0, QETH_TIMEOUT); 1882ed47155bSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(channel->ccwdev)); 18834a71df50SFrank Blaschka 18844a71df50SFrank Blaschka if (rc) { 188514cc21b6SFrank Blaschka QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n", 188614cc21b6SFrank Blaschka rc); 1887d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 18884a71df50SFrank Blaschka atomic_set(&channel->irq_pending, 0); 18895065b2ddSJulian Wiedmann qeth_release_buffer(channel, iob); 18904a71df50SFrank Blaschka wake_up(&card->wait_q); 18914a71df50SFrank Blaschka return rc; 18924a71df50SFrank Blaschka } 18934a71df50SFrank Blaschka rc = wait_event_interruptible_timeout(card->wait_q, 18944a71df50SFrank Blaschka channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT); 18954a71df50SFrank Blaschka if (rc == -ERESTARTSYS) 18964a71df50SFrank Blaschka return rc; 18974a71df50SFrank Blaschka if (channel->state != CH_STATE_ACTIVATING) { 189874eacdb9SFrank Blaschka dev_warn(&channel->ccwdev->dev, "The qeth device driver" 189974eacdb9SFrank Blaschka " failed to recover an error on the device\n"); 1900e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "IDX activate timed out on channel %x\n", 1901e19e5be8SJulian Wiedmann CCW_DEVID(channel->ccwdev)); 1902d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME); 19034a71df50SFrank Blaschka return -ETIME; 19044a71df50SFrank Blaschka } 19058d908eb0SJulian Wiedmann return qeth_idx_activate_get_answer(card, channel, reply_cb); 19064a71df50SFrank Blaschka } 19074a71df50SFrank Blaschka 19084a71df50SFrank Blaschka static int qeth_peer_func_level(int level) 19094a71df50SFrank Blaschka { 19104a71df50SFrank Blaschka if ((level & 0xff) == 8) 19114a71df50SFrank Blaschka return (level & 0xff) + 0x400; 19124a71df50SFrank Blaschka if (((level >> 8) & 3) == 1) 19134a71df50SFrank Blaschka return (level & 0xff) + 0x200; 19144a71df50SFrank Blaschka return level; 19154a71df50SFrank Blaschka } 19164a71df50SFrank Blaschka 19178f6637b8SJulian Wiedmann static void qeth_idx_write_cb(struct qeth_card *card, 19188f6637b8SJulian Wiedmann struct qeth_channel *channel, 19194a71df50SFrank Blaschka struct qeth_cmd_buffer *iob) 19204a71df50SFrank Blaschka { 19214a71df50SFrank Blaschka __u16 temp; 19224a71df50SFrank Blaschka 1923d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP , 2, "idxwrcb"); 19244a71df50SFrank Blaschka 19254a71df50SFrank Blaschka if (channel->state == CH_STATE_DOWN) { 19264a71df50SFrank Blaschka channel->state = CH_STATE_ACTIVATING; 19274a71df50SFrank Blaschka goto out; 19284a71df50SFrank Blaschka } 19294a71df50SFrank Blaschka 19304a71df50SFrank Blaschka if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { 19315113fec0SUrsula Braun if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == QETH_IDX_ACT_ERR_EXCL) 1932750b1625SJulian Wiedmann dev_err(&channel->ccwdev->dev, 193374eacdb9SFrank Blaschka "The adapter is used exclusively by another " 193474eacdb9SFrank Blaschka "host\n"); 19354a71df50SFrank Blaschka else 1936e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "IDX_ACTIVATE on channel %x: negative reply\n", 1937e19e5be8SJulian Wiedmann CCW_DEVID(channel->ccwdev)); 19384a71df50SFrank Blaschka goto out; 19394a71df50SFrank Blaschka } 19404a71df50SFrank Blaschka memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); 19414a71df50SFrank Blaschka if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) { 1942e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "IDX_ACTIVATE on channel %x: function level mismatch (sent: %#x, received: %#x)\n", 1943e19e5be8SJulian Wiedmann CCW_DEVID(channel->ccwdev), 194474eacdb9SFrank Blaschka card->info.func_level, temp); 19454a71df50SFrank Blaschka goto out; 19464a71df50SFrank Blaschka } 19474a71df50SFrank Blaschka channel->state = CH_STATE_UP; 19484a71df50SFrank Blaschka out: 19494a71df50SFrank Blaschka qeth_release_buffer(channel, iob); 19504a71df50SFrank Blaschka } 19514a71df50SFrank Blaschka 19528f6637b8SJulian Wiedmann static void qeth_idx_read_cb(struct qeth_card *card, 19538f6637b8SJulian Wiedmann struct qeth_channel *channel, 19544a71df50SFrank Blaschka struct qeth_cmd_buffer *iob) 19554a71df50SFrank Blaschka { 19564a71df50SFrank Blaschka __u16 temp; 19574a71df50SFrank Blaschka 1958d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP , 2, "idxrdcb"); 19594a71df50SFrank Blaschka if (channel->state == CH_STATE_DOWN) { 19604a71df50SFrank Blaschka channel->state = CH_STATE_ACTIVATING; 19614a71df50SFrank Blaschka goto out; 19624a71df50SFrank Blaschka } 19634a71df50SFrank Blaschka 19645113fec0SUrsula Braun if (qeth_check_idx_response(card, iob->data)) 19654a71df50SFrank Blaschka goto out; 19664a71df50SFrank Blaschka 19674a71df50SFrank Blaschka if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { 19685113fec0SUrsula Braun switch (QETH_IDX_ACT_CAUSE_CODE(iob->data)) { 19695113fec0SUrsula Braun case QETH_IDX_ACT_ERR_EXCL: 1970750b1625SJulian Wiedmann dev_err(&channel->ccwdev->dev, 197174eacdb9SFrank Blaschka "The adapter is used exclusively by another " 197274eacdb9SFrank Blaschka "host\n"); 19735113fec0SUrsula Braun break; 19745113fec0SUrsula Braun case QETH_IDX_ACT_ERR_AUTH: 197501fc3e86SUrsula Braun case QETH_IDX_ACT_ERR_AUTH_USER: 1976750b1625SJulian Wiedmann dev_err(&channel->ccwdev->dev, 19775113fec0SUrsula Braun "Setting the device online failed because of " 197801fc3e86SUrsula Braun "insufficient authorization\n"); 19795113fec0SUrsula Braun break; 19805113fec0SUrsula Braun default: 1981e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "IDX_ACTIVATE on channel %x: negative reply\n", 1982e19e5be8SJulian Wiedmann CCW_DEVID(channel->ccwdev)); 19835113fec0SUrsula Braun } 198401fc3e86SUrsula Braun QETH_CARD_TEXT_(card, 2, "idxread%c", 198501fc3e86SUrsula Braun QETH_IDX_ACT_CAUSE_CODE(iob->data)); 19864a71df50SFrank Blaschka goto out; 19874a71df50SFrank Blaschka } 19884a71df50SFrank Blaschka 19894a71df50SFrank Blaschka memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); 19904a71df50SFrank Blaschka if (temp != qeth_peer_func_level(card->info.func_level)) { 1991e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "IDX_ACTIVATE on channel %x: function level mismatch (sent: %#x, received: %#x)\n", 1992e19e5be8SJulian Wiedmann CCW_DEVID(channel->ccwdev), 199374eacdb9SFrank Blaschka card->info.func_level, temp); 19944a71df50SFrank Blaschka goto out; 19954a71df50SFrank Blaschka } 19964a71df50SFrank Blaschka memcpy(&card->token.issuer_rm_r, 19974a71df50SFrank Blaschka QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data), 19984a71df50SFrank Blaschka QETH_MPC_TOKEN_LENGTH); 19994a71df50SFrank Blaschka memcpy(&card->info.mcl_level[0], 20004a71df50SFrank Blaschka QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH); 20014a71df50SFrank Blaschka channel->state = CH_STATE_UP; 20024a71df50SFrank Blaschka out: 20034a71df50SFrank Blaschka qeth_release_buffer(channel, iob); 20044a71df50SFrank Blaschka } 20054a71df50SFrank Blaschka 20064a71df50SFrank Blaschka void qeth_prepare_control_data(struct qeth_card *card, int len, 20074a71df50SFrank Blaschka struct qeth_cmd_buffer *iob) 20084a71df50SFrank Blaschka { 2009f15cdaf2SJulian Wiedmann qeth_setup_ccw(iob->channel->ccw, CCW_CMD_WRITE, len, iob->data); 20108f6637b8SJulian Wiedmann iob->callback = qeth_release_buffer_cb; 20114a71df50SFrank Blaschka 20124a71df50SFrank Blaschka memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), 20134a71df50SFrank Blaschka &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); 20144a71df50SFrank Blaschka card->seqno.trans_hdr++; 20154a71df50SFrank Blaschka memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data), 20164a71df50SFrank Blaschka &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH); 20174a71df50SFrank Blaschka card->seqno.pdu_hdr++; 20184a71df50SFrank Blaschka memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data), 20194a71df50SFrank Blaschka &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH); 202051581fd0SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, iob->data, min(len, QETH_DBF_CTRL_LEN)); 20214a71df50SFrank Blaschka } 20224a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_prepare_control_data); 20234a71df50SFrank Blaschka 2024efbbc1d5SEugene Crosser /** 2025efbbc1d5SEugene Crosser * qeth_send_control_data() - send control command to the card 2026efbbc1d5SEugene Crosser * @card: qeth_card structure pointer 2027efbbc1d5SEugene Crosser * @len: size of the command buffer 2028efbbc1d5SEugene Crosser * @iob: qeth_cmd_buffer pointer 2029efbbc1d5SEugene Crosser * @reply_cb: callback function pointer 2030efbbc1d5SEugene Crosser * @cb_card: pointer to the qeth_card structure 2031efbbc1d5SEugene Crosser * @cb_reply: pointer to the qeth_reply structure 2032efbbc1d5SEugene Crosser * @cb_cmd: pointer to the original iob for non-IPA 2033efbbc1d5SEugene Crosser * commands, or to the qeth_ipa_cmd structure 2034efbbc1d5SEugene Crosser * for the IPA commands. 2035efbbc1d5SEugene Crosser * @reply_param: private pointer passed to the callback 2036efbbc1d5SEugene Crosser * 2037efbbc1d5SEugene Crosser * Callback function gets called one or more times, with cb_cmd 2038efbbc1d5SEugene Crosser * pointing to the response returned by the hardware. Callback 2039742d4d40SJulian Wiedmann * function must return 2040742d4d40SJulian Wiedmann * > 0 if more reply blocks are expected, 2041742d4d40SJulian Wiedmann * 0 if the last or only reply block is received, and 2042742d4d40SJulian Wiedmann * < 0 on error. 2043742d4d40SJulian Wiedmann * Callback function can get the value of the reply_param pointer from the 2044efbbc1d5SEugene Crosser * field 'param' of the structure qeth_reply. 2045efbbc1d5SEugene Crosser */ 2046efbbc1d5SEugene Crosser 204784dbea46SJulian Wiedmann static int qeth_send_control_data(struct qeth_card *card, int len, 20484a71df50SFrank Blaschka struct qeth_cmd_buffer *iob, 2049efbbc1d5SEugene Crosser int (*reply_cb)(struct qeth_card *cb_card, 2050efbbc1d5SEugene Crosser struct qeth_reply *cb_reply, 2051efbbc1d5SEugene Crosser unsigned long cb_cmd), 20524a71df50SFrank Blaschka void *reply_param) 20534a71df50SFrank Blaschka { 2054750b1625SJulian Wiedmann struct qeth_channel *channel = iob->channel; 20554a71df50SFrank Blaschka int rc; 20564a71df50SFrank Blaschka struct qeth_reply *reply = NULL; 20577834cd5aSHeiko Carstens unsigned long timeout, event_timeout; 20581c5b2216SJulian Wiedmann struct qeth_ipa_cmd *cmd = NULL; 20594a71df50SFrank Blaschka 2060847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "sendctl"); 20614a71df50SFrank Blaschka 2062908abbb5SUrsula Braun if (card->read_or_write_problem) { 2063750b1625SJulian Wiedmann qeth_release_buffer(channel, iob); 2064908abbb5SUrsula Braun return -EIO; 2065908abbb5SUrsula Braun } 20664a71df50SFrank Blaschka reply = qeth_alloc_reply(card); 20674a71df50SFrank Blaschka if (!reply) { 20685065b2ddSJulian Wiedmann qeth_release_buffer(channel, iob); 20694a71df50SFrank Blaschka return -ENOMEM; 20704a71df50SFrank Blaschka } 20714a71df50SFrank Blaschka reply->callback = reply_cb; 20724a71df50SFrank Blaschka reply->param = reply_param; 2073d22ffb5aSJulian Wiedmann 207454daaca7SJulian Wiedmann /* pairs with qeth_release_buffer(): */ 207554daaca7SJulian Wiedmann qeth_get_reply(reply); 207654daaca7SJulian Wiedmann iob->reply = reply; 207754daaca7SJulian Wiedmann 2078750b1625SJulian Wiedmann while (atomic_cmpxchg(&channel->irq_pending, 0, 1)) ; 20794a71df50SFrank Blaschka 20801c5b2216SJulian Wiedmann if (IS_IPA(iob->data)) { 20811c5b2216SJulian Wiedmann cmd = __ipa_cmd(iob); 2082d22ffb5aSJulian Wiedmann cmd->hdr.seqno = card->seqno.ipa++; 2083d22ffb5aSJulian Wiedmann reply->seqno = cmd->hdr.seqno; 20847834cd5aSHeiko Carstens event_timeout = QETH_IPA_TIMEOUT; 20851c5b2216SJulian Wiedmann } else { 2086d22ffb5aSJulian Wiedmann reply->seqno = QETH_IDX_COMMAND_SEQNO; 20877834cd5aSHeiko Carstens event_timeout = QETH_TIMEOUT; 20881c5b2216SJulian Wiedmann } 2089d22ffb5aSJulian Wiedmann qeth_prepare_control_data(card, len, iob); 2090d22ffb5aSJulian Wiedmann 20910951c6baSJulian Wiedmann qeth_enqueue_reply(card, reply); 20921c5b2216SJulian Wiedmann 20937834cd5aSHeiko Carstens timeout = jiffies + event_timeout; 20944a71df50SFrank Blaschka 2095847a50fdSCarsten Otte QETH_CARD_TEXT(card, 6, "noirqpnd"); 2096ed47155bSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(channel->ccwdev)); 2097f15cdaf2SJulian Wiedmann rc = ccw_device_start_timeout(channel->ccwdev, channel->ccw, 2098db71bbbdSJulian Wiedmann (addr_t) iob, 0, 0, event_timeout); 2099ed47155bSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(channel->ccwdev)); 21004a71df50SFrank Blaschka if (rc) { 2101e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "qeth_send_control_data on device %x: ccw_device_start rc = %i\n", 2102e19e5be8SJulian Wiedmann CARD_DEVID(card), rc); 2103847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 2, " err%d", rc); 21040951c6baSJulian Wiedmann qeth_dequeue_reply(card, reply); 21054a71df50SFrank Blaschka qeth_put_reply(reply); 2106750b1625SJulian Wiedmann qeth_release_buffer(channel, iob); 2107750b1625SJulian Wiedmann atomic_set(&channel->irq_pending, 0); 21084a71df50SFrank Blaschka wake_up(&card->wait_q); 21094a71df50SFrank Blaschka return rc; 21104a71df50SFrank Blaschka } 21115b54e16fSFrank Blaschka 21125b54e16fSFrank Blaschka /* we have only one long running ipassist, since we can ensure 21135b54e16fSFrank Blaschka process context of this command we can sleep */ 21141c5b2216SJulian Wiedmann if (cmd && cmd->hdr.command == IPA_CMD_SETIP && 21151c5b2216SJulian Wiedmann cmd->hdr.prot_version == QETH_PROT_IPV4) { 21165b54e16fSFrank Blaschka if (!wait_event_timeout(reply->wait_q, 21177834cd5aSHeiko Carstens atomic_read(&reply->received), event_timeout)) 21185b54e16fSFrank Blaschka goto time_err; 21195b54e16fSFrank Blaschka } else { 21204a71df50SFrank Blaschka while (!atomic_read(&reply->received)) { 21215b54e16fSFrank Blaschka if (time_after(jiffies, timeout)) 21225b54e16fSFrank Blaschka goto time_err; 21235b54e16fSFrank Blaschka cpu_relax(); 21246531084cSPeter Senna Tschudin } 21255b54e16fSFrank Blaschka } 21265b54e16fSFrank Blaschka 21270951c6baSJulian Wiedmann qeth_dequeue_reply(card, reply); 21285b54e16fSFrank Blaschka rc = reply->rc; 21295b54e16fSFrank Blaschka qeth_put_reply(reply); 21305b54e16fSFrank Blaschka return rc; 21315b54e16fSFrank Blaschka 21325b54e16fSFrank Blaschka time_err: 21330951c6baSJulian Wiedmann qeth_dequeue_reply(card, reply); 21344a71df50SFrank Blaschka qeth_put_reply(reply); 21350951c6baSJulian Wiedmann return -ETIME; 21364a71df50SFrank Blaschka } 21374a71df50SFrank Blaschka 21384a71df50SFrank Blaschka static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply, 21394a71df50SFrank Blaschka unsigned long data) 21404a71df50SFrank Blaschka { 21414a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 21424a71df50SFrank Blaschka 2143d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "cmenblcb"); 21444a71df50SFrank Blaschka 21454a71df50SFrank Blaschka iob = (struct qeth_cmd_buffer *) data; 21464a71df50SFrank Blaschka memcpy(&card->token.cm_filter_r, 21474a71df50SFrank Blaschka QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data), 21484a71df50SFrank Blaschka QETH_MPC_TOKEN_LENGTH); 21494a71df50SFrank Blaschka return 0; 21504a71df50SFrank Blaschka } 21514a71df50SFrank Blaschka 21524a71df50SFrank Blaschka static int qeth_cm_enable(struct qeth_card *card) 21534a71df50SFrank Blaschka { 21544a71df50SFrank Blaschka int rc; 21554a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 21564a71df50SFrank Blaschka 2157d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "cmenable"); 21584a71df50SFrank Blaschka 21594a71df50SFrank Blaschka iob = qeth_wait_for_buffer(&card->write); 21604a71df50SFrank Blaschka memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE); 21614a71df50SFrank Blaschka memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data), 21624a71df50SFrank Blaschka &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH); 21634a71df50SFrank Blaschka memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data), 21644a71df50SFrank Blaschka &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH); 21654a71df50SFrank Blaschka 21664a71df50SFrank Blaschka rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob, 21674a71df50SFrank Blaschka qeth_cm_enable_cb, NULL); 21684a71df50SFrank Blaschka return rc; 21694a71df50SFrank Blaschka } 21704a71df50SFrank Blaschka 21714a71df50SFrank Blaschka static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply, 21724a71df50SFrank Blaschka unsigned long data) 21734a71df50SFrank Blaschka { 21744a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 21754a71df50SFrank Blaschka 2176d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "cmsetpcb"); 21774a71df50SFrank Blaschka 21784a71df50SFrank Blaschka iob = (struct qeth_cmd_buffer *) data; 21794a71df50SFrank Blaschka memcpy(&card->token.cm_connection_r, 21804a71df50SFrank Blaschka QETH_CM_SETUP_RESP_DEST_ADDR(iob->data), 21814a71df50SFrank Blaschka QETH_MPC_TOKEN_LENGTH); 21824a71df50SFrank Blaschka return 0; 21834a71df50SFrank Blaschka } 21844a71df50SFrank Blaschka 21854a71df50SFrank Blaschka static int qeth_cm_setup(struct qeth_card *card) 21864a71df50SFrank Blaschka { 21874a71df50SFrank Blaschka int rc; 21884a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 21894a71df50SFrank Blaschka 2190d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "cmsetup"); 21914a71df50SFrank Blaschka 21924a71df50SFrank Blaschka iob = qeth_wait_for_buffer(&card->write); 21934a71df50SFrank Blaschka memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE); 21944a71df50SFrank Blaschka memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data), 21954a71df50SFrank Blaschka &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH); 21964a71df50SFrank Blaschka memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data), 21974a71df50SFrank Blaschka &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH); 21984a71df50SFrank Blaschka memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data), 21994a71df50SFrank Blaschka &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH); 22004a71df50SFrank Blaschka rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob, 22014a71df50SFrank Blaschka qeth_cm_setup_cb, NULL); 22024a71df50SFrank Blaschka return rc; 22034a71df50SFrank Blaschka } 22044a71df50SFrank Blaschka 22058ce7a9e0SJulian Wiedmann static int qeth_update_max_mtu(struct qeth_card *card, unsigned int max_mtu) 22064a71df50SFrank Blaschka { 22078ce7a9e0SJulian Wiedmann struct net_device *dev = card->dev; 22088ce7a9e0SJulian Wiedmann unsigned int new_mtu; 22098ce7a9e0SJulian Wiedmann 22108ce7a9e0SJulian Wiedmann if (!max_mtu) { 22118ce7a9e0SJulian Wiedmann /* IQD needs accurate max MTU to set up its RX buffers: */ 22128ce7a9e0SJulian Wiedmann if (IS_IQD(card)) 22138ce7a9e0SJulian Wiedmann return -EINVAL; 22148ce7a9e0SJulian Wiedmann /* tolerate quirky HW: */ 22158ce7a9e0SJulian Wiedmann max_mtu = ETH_MAX_MTU; 22164a71df50SFrank Blaschka } 22178ce7a9e0SJulian Wiedmann 22188ce7a9e0SJulian Wiedmann rtnl_lock(); 22198ce7a9e0SJulian Wiedmann if (IS_IQD(card)) { 22208ce7a9e0SJulian Wiedmann /* move any device with default MTU to new max MTU: */ 22218ce7a9e0SJulian Wiedmann new_mtu = (dev->mtu == dev->max_mtu) ? max_mtu : dev->mtu; 22228ce7a9e0SJulian Wiedmann 22238ce7a9e0SJulian Wiedmann /* adjust RX buffer size to new max MTU: */ 22248ce7a9e0SJulian Wiedmann card->qdio.in_buf_size = max_mtu + 2 * PAGE_SIZE; 22258ce7a9e0SJulian Wiedmann if (dev->max_mtu && dev->max_mtu != max_mtu) 22268ce7a9e0SJulian Wiedmann qeth_free_qdio_buffers(card); 22278ce7a9e0SJulian Wiedmann } else { 22288ce7a9e0SJulian Wiedmann if (dev->mtu) 22298ce7a9e0SJulian Wiedmann new_mtu = dev->mtu; 22308ce7a9e0SJulian Wiedmann /* default MTUs for first setup: */ 22314fda3354SJulian Wiedmann else if (IS_LAYER2(card)) 22328ce7a9e0SJulian Wiedmann new_mtu = ETH_DATA_LEN; 22338ce7a9e0SJulian Wiedmann else 22348ce7a9e0SJulian Wiedmann new_mtu = ETH_DATA_LEN - 8; /* allow for LLC + SNAP */ 22358ce7a9e0SJulian Wiedmann } 22368ce7a9e0SJulian Wiedmann 22378ce7a9e0SJulian Wiedmann dev->max_mtu = max_mtu; 22388ce7a9e0SJulian Wiedmann dev->mtu = min(new_mtu, max_mtu); 22398ce7a9e0SJulian Wiedmann rtnl_unlock(); 22408ce7a9e0SJulian Wiedmann return 0; 22414a71df50SFrank Blaschka } 22424a71df50SFrank Blaschka 2243cef6ff22SJulian Wiedmann static int qeth_get_mtu_outof_framesize(int framesize) 22444a71df50SFrank Blaschka { 22454a71df50SFrank Blaschka switch (framesize) { 22464a71df50SFrank Blaschka case 0x4000: 22474a71df50SFrank Blaschka return 8192; 22484a71df50SFrank Blaschka case 0x6000: 22494a71df50SFrank Blaschka return 16384; 22504a71df50SFrank Blaschka case 0xa000: 22514a71df50SFrank Blaschka return 32768; 22524a71df50SFrank Blaschka case 0xffff: 22534a71df50SFrank Blaschka return 57344; 22544a71df50SFrank Blaschka default: 22554a71df50SFrank Blaschka return 0; 22564a71df50SFrank Blaschka } 22574a71df50SFrank Blaschka } 22584a71df50SFrank Blaschka 22594a71df50SFrank Blaschka static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply, 22604a71df50SFrank Blaschka unsigned long data) 22614a71df50SFrank Blaschka { 22624a71df50SFrank Blaschka __u16 mtu, framesize; 22634a71df50SFrank Blaschka __u16 len; 22644a71df50SFrank Blaschka __u8 link_type; 22654a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 22664a71df50SFrank Blaschka 2267d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "ulpenacb"); 22684a71df50SFrank Blaschka 22694a71df50SFrank Blaschka iob = (struct qeth_cmd_buffer *) data; 22704a71df50SFrank Blaschka memcpy(&card->token.ulp_filter_r, 22714a71df50SFrank Blaschka QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data), 22724a71df50SFrank Blaschka QETH_MPC_TOKEN_LENGTH); 22739853b97bSFrank Blaschka if (card->info.type == QETH_CARD_TYPE_IQD) { 22744a71df50SFrank Blaschka memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2); 22754a71df50SFrank Blaschka mtu = qeth_get_mtu_outof_framesize(framesize); 22764a71df50SFrank Blaschka } else { 22778ce7a9e0SJulian Wiedmann mtu = *(__u16 *)QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data); 22784a71df50SFrank Blaschka } 22798ce7a9e0SJulian Wiedmann *(u16 *)reply->param = mtu; 22804a71df50SFrank Blaschka 22814a71df50SFrank Blaschka memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2); 22824a71df50SFrank Blaschka if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) { 22834a71df50SFrank Blaschka memcpy(&link_type, 22844a71df50SFrank Blaschka QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1); 22854a71df50SFrank Blaschka card->info.link_type = link_type; 22864a71df50SFrank Blaschka } else 22874a71df50SFrank Blaschka card->info.link_type = 0; 228801fc3e86SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "link%d", card->info.link_type); 22894a71df50SFrank Blaschka return 0; 22904a71df50SFrank Blaschka } 22914a71df50SFrank Blaschka 229273657a3eSJulian Wiedmann static u8 qeth_mpc_select_prot_type(struct qeth_card *card) 229373657a3eSJulian Wiedmann { 229473657a3eSJulian Wiedmann if (IS_OSN(card)) 229573657a3eSJulian Wiedmann return QETH_PROT_OSN2; 22964fda3354SJulian Wiedmann return IS_LAYER2(card) ? QETH_PROT_LAYER2 : QETH_PROT_TCPIP; 229773657a3eSJulian Wiedmann } 229873657a3eSJulian Wiedmann 22994a71df50SFrank Blaschka static int qeth_ulp_enable(struct qeth_card *card) 23004a71df50SFrank Blaschka { 230173657a3eSJulian Wiedmann u8 prot_type = qeth_mpc_select_prot_type(card); 23024a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 23038ce7a9e0SJulian Wiedmann u16 max_mtu; 230473657a3eSJulian Wiedmann int rc; 23054a71df50SFrank Blaschka 23064a71df50SFrank Blaschka /*FIXME: trace view callbacks*/ 2307d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "ulpenabl"); 23084a71df50SFrank Blaschka 23094a71df50SFrank Blaschka iob = qeth_wait_for_buffer(&card->write); 23104a71df50SFrank Blaschka memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE); 23114a71df50SFrank Blaschka 231292d27209SJulian Wiedmann *(QETH_ULP_ENABLE_LINKNUM(iob->data)) = (u8) card->dev->dev_port; 23134a71df50SFrank Blaschka memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1); 23144a71df50SFrank Blaschka memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data), 23154a71df50SFrank Blaschka &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); 23164a71df50SFrank Blaschka memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data), 23174a71df50SFrank Blaschka &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH); 23184a71df50SFrank Blaschka rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob, 23198ce7a9e0SJulian Wiedmann qeth_ulp_enable_cb, &max_mtu); 23208ce7a9e0SJulian Wiedmann if (rc) 23214a71df50SFrank Blaschka return rc; 23228ce7a9e0SJulian Wiedmann return qeth_update_max_mtu(card, max_mtu); 23234a71df50SFrank Blaschka } 23244a71df50SFrank Blaschka 23254a71df50SFrank Blaschka static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply, 23264a71df50SFrank Blaschka unsigned long data) 23274a71df50SFrank Blaschka { 23284a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 23294a71df50SFrank Blaschka 2330d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "ulpstpcb"); 23314a71df50SFrank Blaschka 23324a71df50SFrank Blaschka iob = (struct qeth_cmd_buffer *) data; 23334a71df50SFrank Blaschka memcpy(&card->token.ulp_connection_r, 23344a71df50SFrank Blaschka QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), 23354a71df50SFrank Blaschka QETH_MPC_TOKEN_LENGTH); 233665a1f898SUrsula Braun if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), 233765a1f898SUrsula Braun 3)) { 233865a1f898SUrsula Braun QETH_DBF_TEXT(SETUP, 2, "olmlimit"); 233965a1f898SUrsula Braun dev_err(&card->gdev->dev, "A connection could not be " 234065a1f898SUrsula Braun "established because of an OLM limit\n"); 23414b7ae122SJulian Wiedmann return -EMLINK; 234265a1f898SUrsula Braun } 23437bf9bcffSStefan Raspl return 0; 23444a71df50SFrank Blaschka } 23454a71df50SFrank Blaschka 23464a71df50SFrank Blaschka static int qeth_ulp_setup(struct qeth_card *card) 23474a71df50SFrank Blaschka { 23484a71df50SFrank Blaschka int rc; 23494a71df50SFrank Blaschka __u16 temp; 23504a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 23514a71df50SFrank Blaschka struct ccw_dev_id dev_id; 23524a71df50SFrank Blaschka 2353d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "ulpsetup"); 23544a71df50SFrank Blaschka 23554a71df50SFrank Blaschka iob = qeth_wait_for_buffer(&card->write); 23564a71df50SFrank Blaschka memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE); 23574a71df50SFrank Blaschka 23584a71df50SFrank Blaschka memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data), 23594a71df50SFrank Blaschka &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); 23604a71df50SFrank Blaschka memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data), 23614a71df50SFrank Blaschka &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH); 23624a71df50SFrank Blaschka memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data), 23634a71df50SFrank Blaschka &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH); 23644a71df50SFrank Blaschka 23654a71df50SFrank Blaschka ccw_device_get_id(CARD_DDEV(card), &dev_id); 23664a71df50SFrank Blaschka memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2); 23674a71df50SFrank Blaschka temp = (card->info.cula << 8) + card->info.unit_addr2; 23684a71df50SFrank Blaschka memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2); 23694a71df50SFrank Blaschka rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob, 23704a71df50SFrank Blaschka qeth_ulp_setup_cb, NULL); 23714a71df50SFrank Blaschka return rc; 23724a71df50SFrank Blaschka } 23734a71df50SFrank Blaschka 23740da9581dSEinar Lueck static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *q, int bidx) 23750da9581dSEinar Lueck { 23760da9581dSEinar Lueck struct qeth_qdio_out_buffer *newbuf; 23770da9581dSEinar Lueck 23780da9581dSEinar Lueck newbuf = kmem_cache_zalloc(qeth_qdio_outbuf_cache, GFP_ATOMIC); 23793b346c18SJulian Wiedmann if (!newbuf) 23803b346c18SJulian Wiedmann return -ENOMEM; 23813b346c18SJulian Wiedmann 2382d445a4e2SSebastian Ott newbuf->buffer = q->qdio_bufs[bidx]; 23830da9581dSEinar Lueck skb_queue_head_init(&newbuf->skb_list); 23840da9581dSEinar Lueck lockdep_set_class(&newbuf->skb_list.lock, &qdio_out_skb_queue_key); 23850da9581dSEinar Lueck newbuf->q = q; 23860da9581dSEinar Lueck newbuf->next_pending = q->bufs[bidx]; 23870da9581dSEinar Lueck atomic_set(&newbuf->state, QETH_QDIO_BUF_EMPTY); 23880da9581dSEinar Lueck q->bufs[bidx] = newbuf; 23893b346c18SJulian Wiedmann return 0; 23900da9581dSEinar Lueck } 23910da9581dSEinar Lueck 2392afa0c590SJulian Wiedmann static void qeth_free_output_queue(struct qeth_qdio_out_q *q) 2393d445a4e2SSebastian Ott { 2394d445a4e2SSebastian Ott if (!q) 2395d445a4e2SSebastian Ott return; 2396d445a4e2SSebastian Ott 2397afa0c590SJulian Wiedmann qeth_clear_outq_buffers(q, 1); 2398d445a4e2SSebastian Ott qdio_free_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q); 2399d445a4e2SSebastian Ott kfree(q); 2400d445a4e2SSebastian Ott } 2401d445a4e2SSebastian Ott 2402d445a4e2SSebastian Ott static struct qeth_qdio_out_q *qeth_alloc_qdio_out_buf(void) 2403d445a4e2SSebastian Ott { 2404d445a4e2SSebastian Ott struct qeth_qdio_out_q *q = kzalloc(sizeof(*q), GFP_KERNEL); 2405d445a4e2SSebastian Ott 2406d445a4e2SSebastian Ott if (!q) 2407d445a4e2SSebastian Ott return NULL; 2408d445a4e2SSebastian Ott 2409d445a4e2SSebastian Ott if (qdio_alloc_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q)) { 2410d445a4e2SSebastian Ott kfree(q); 2411d445a4e2SSebastian Ott return NULL; 2412d445a4e2SSebastian Ott } 2413d445a4e2SSebastian Ott return q; 2414d445a4e2SSebastian Ott } 24150da9581dSEinar Lueck 24164a71df50SFrank Blaschka static int qeth_alloc_qdio_buffers(struct qeth_card *card) 24174a71df50SFrank Blaschka { 24184a71df50SFrank Blaschka int i, j; 24194a71df50SFrank Blaschka 2420d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "allcqdbf"); 24214a71df50SFrank Blaschka 24224a71df50SFrank Blaschka if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED, 24234a71df50SFrank Blaschka QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED) 24244a71df50SFrank Blaschka return 0; 24254a71df50SFrank Blaschka 24264601ba6cSSebastian Ott QETH_DBF_TEXT(SETUP, 2, "inq"); 24274601ba6cSSebastian Ott card->qdio.in_q = qeth_alloc_qdio_queue(); 24284a71df50SFrank Blaschka if (!card->qdio.in_q) 24294a71df50SFrank Blaschka goto out_nomem; 24304601ba6cSSebastian Ott 24314a71df50SFrank Blaschka /* inbound buffer pool */ 24324a71df50SFrank Blaschka if (qeth_alloc_buffer_pool(card)) 24334a71df50SFrank Blaschka goto out_freeinq; 24340da9581dSEinar Lueck 24354a71df50SFrank Blaschka /* outbound */ 24364a71df50SFrank Blaschka for (i = 0; i < card->qdio.no_out_queues; ++i) { 2437d445a4e2SSebastian Ott card->qdio.out_qs[i] = qeth_alloc_qdio_out_buf(); 24384a71df50SFrank Blaschka if (!card->qdio.out_qs[i]) 24394a71df50SFrank Blaschka goto out_freeoutq; 2440d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "outq %i", i); 2441d11ba0c4SPeter Tiedemann QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *)); 24424a71df50SFrank Blaschka card->qdio.out_qs[i]->queue_no = i; 24434a71df50SFrank Blaschka /* give outbound qeth_qdio_buffers their qdio_buffers */ 24444a71df50SFrank Blaschka for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { 244518af5c17SStefan Raspl WARN_ON(card->qdio.out_qs[i]->bufs[j] != NULL); 24460da9581dSEinar Lueck if (qeth_init_qdio_out_buf(card->qdio.out_qs[i], j)) 24470da9581dSEinar Lueck goto out_freeoutqbufs; 24484a71df50SFrank Blaschka } 24494a71df50SFrank Blaschka } 24500da9581dSEinar Lueck 24510da9581dSEinar Lueck /* completion */ 24520da9581dSEinar Lueck if (qeth_alloc_cq(card)) 24530da9581dSEinar Lueck goto out_freeoutq; 24540da9581dSEinar Lueck 24554a71df50SFrank Blaschka return 0; 24564a71df50SFrank Blaschka 24570da9581dSEinar Lueck out_freeoutqbufs: 24580da9581dSEinar Lueck while (j > 0) { 24590da9581dSEinar Lueck --j; 24600da9581dSEinar Lueck kmem_cache_free(qeth_qdio_outbuf_cache, 24610da9581dSEinar Lueck card->qdio.out_qs[i]->bufs[j]); 24620da9581dSEinar Lueck card->qdio.out_qs[i]->bufs[j] = NULL; 24630da9581dSEinar Lueck } 24644a71df50SFrank Blaschka out_freeoutq: 2465bb92d3f8SJulian Wiedmann while (i > 0) { 2466afa0c590SJulian Wiedmann qeth_free_output_queue(card->qdio.out_qs[--i]); 2467bb92d3f8SJulian Wiedmann card->qdio.out_qs[i] = NULL; 2468bb92d3f8SJulian Wiedmann } 24694a71df50SFrank Blaschka qeth_free_buffer_pool(card); 24704a71df50SFrank Blaschka out_freeinq: 24714601ba6cSSebastian Ott qeth_free_qdio_queue(card->qdio.in_q); 24724a71df50SFrank Blaschka card->qdio.in_q = NULL; 24734a71df50SFrank Blaschka out_nomem: 24744a71df50SFrank Blaschka atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); 24754a71df50SFrank Blaschka return -ENOMEM; 24764a71df50SFrank Blaschka } 24774a71df50SFrank Blaschka 2478d445a4e2SSebastian Ott static void qeth_free_qdio_buffers(struct qeth_card *card) 2479d445a4e2SSebastian Ott { 2480d445a4e2SSebastian Ott int i, j; 2481d445a4e2SSebastian Ott 2482d445a4e2SSebastian Ott if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) == 2483d445a4e2SSebastian Ott QETH_QDIO_UNINITIALIZED) 2484d445a4e2SSebastian Ott return; 2485d445a4e2SSebastian Ott 2486d445a4e2SSebastian Ott qeth_free_cq(card); 2487d445a4e2SSebastian Ott cancel_delayed_work_sync(&card->buffer_reclaim_work); 2488d445a4e2SSebastian Ott for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { 2489d445a4e2SSebastian Ott if (card->qdio.in_q->bufs[j].rx_skb) 2490d445a4e2SSebastian Ott dev_kfree_skb_any(card->qdio.in_q->bufs[j].rx_skb); 2491d445a4e2SSebastian Ott } 2492d445a4e2SSebastian Ott qeth_free_qdio_queue(card->qdio.in_q); 2493d445a4e2SSebastian Ott card->qdio.in_q = NULL; 2494d445a4e2SSebastian Ott /* inbound buffer pool */ 2495d445a4e2SSebastian Ott qeth_free_buffer_pool(card); 2496d445a4e2SSebastian Ott /* free outbound qdio_qs */ 2497bb92d3f8SJulian Wiedmann for (i = 0; i < card->qdio.no_out_queues; i++) { 2498afa0c590SJulian Wiedmann qeth_free_output_queue(card->qdio.out_qs[i]); 2499bb92d3f8SJulian Wiedmann card->qdio.out_qs[i] = NULL; 2500d445a4e2SSebastian Ott } 2501d445a4e2SSebastian Ott } 2502d445a4e2SSebastian Ott 25034a71df50SFrank Blaschka static void qeth_create_qib_param_field(struct qeth_card *card, 25044a71df50SFrank Blaschka char *param_field) 25054a71df50SFrank Blaschka { 25064a71df50SFrank Blaschka 25074a71df50SFrank Blaschka param_field[0] = _ascebc['P']; 25084a71df50SFrank Blaschka param_field[1] = _ascebc['C']; 25094a71df50SFrank Blaschka param_field[2] = _ascebc['I']; 25104a71df50SFrank Blaschka param_field[3] = _ascebc['T']; 25114a71df50SFrank Blaschka *((unsigned int *) (¶m_field[4])) = QETH_PCI_THRESHOLD_A(card); 25124a71df50SFrank Blaschka *((unsigned int *) (¶m_field[8])) = QETH_PCI_THRESHOLD_B(card); 25134a71df50SFrank Blaschka *((unsigned int *) (¶m_field[12])) = QETH_PCI_TIMER_VALUE(card); 25144a71df50SFrank Blaschka } 25154a71df50SFrank Blaschka 25164a71df50SFrank Blaschka static void qeth_create_qib_param_field_blkt(struct qeth_card *card, 25174a71df50SFrank Blaschka char *param_field) 25184a71df50SFrank Blaschka { 25194a71df50SFrank Blaschka param_field[16] = _ascebc['B']; 25204a71df50SFrank Blaschka param_field[17] = _ascebc['L']; 25214a71df50SFrank Blaschka param_field[18] = _ascebc['K']; 25224a71df50SFrank Blaschka param_field[19] = _ascebc['T']; 25234a71df50SFrank Blaschka *((unsigned int *) (¶m_field[20])) = card->info.blkt.time_total; 25244a71df50SFrank Blaschka *((unsigned int *) (¶m_field[24])) = card->info.blkt.inter_packet; 25254a71df50SFrank Blaschka *((unsigned int *) (¶m_field[28])) = 25264a71df50SFrank Blaschka card->info.blkt.inter_packet_jumbo; 25274a71df50SFrank Blaschka } 25284a71df50SFrank Blaschka 25294a71df50SFrank Blaschka static int qeth_qdio_activate(struct qeth_card *card) 25304a71df50SFrank Blaschka { 2531d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 3, "qdioact"); 2532779e6e1cSJan Glauber return qdio_activate(CARD_DDEV(card)); 25334a71df50SFrank Blaschka } 25344a71df50SFrank Blaschka 25354a71df50SFrank Blaschka static int qeth_dm_act(struct qeth_card *card) 25364a71df50SFrank Blaschka { 25374a71df50SFrank Blaschka int rc; 25384a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 25394a71df50SFrank Blaschka 2540d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "dmact"); 25414a71df50SFrank Blaschka 25424a71df50SFrank Blaschka iob = qeth_wait_for_buffer(&card->write); 25434a71df50SFrank Blaschka memcpy(iob->data, DM_ACT, DM_ACT_SIZE); 25444a71df50SFrank Blaschka 25454a71df50SFrank Blaschka memcpy(QETH_DM_ACT_DEST_ADDR(iob->data), 25464a71df50SFrank Blaschka &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); 25474a71df50SFrank Blaschka memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data), 25484a71df50SFrank Blaschka &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); 25494a71df50SFrank Blaschka rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL); 25504a71df50SFrank Blaschka return rc; 25514a71df50SFrank Blaschka } 25524a71df50SFrank Blaschka 25534a71df50SFrank Blaschka static int qeth_mpc_initialize(struct qeth_card *card) 25544a71df50SFrank Blaschka { 25554a71df50SFrank Blaschka int rc; 25564a71df50SFrank Blaschka 2557d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "mpcinit"); 25584a71df50SFrank Blaschka 25594a71df50SFrank Blaschka rc = qeth_issue_next_read(card); 25604a71df50SFrank Blaschka if (rc) { 2561d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 25624a71df50SFrank Blaschka return rc; 25634a71df50SFrank Blaschka } 25644a71df50SFrank Blaschka rc = qeth_cm_enable(card); 25654a71df50SFrank Blaschka if (rc) { 2566d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); 25674a71df50SFrank Blaschka goto out_qdio; 25684a71df50SFrank Blaschka } 25694a71df50SFrank Blaschka rc = qeth_cm_setup(card); 25704a71df50SFrank Blaschka if (rc) { 2571d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); 25724a71df50SFrank Blaschka goto out_qdio; 25734a71df50SFrank Blaschka } 25744a71df50SFrank Blaschka rc = qeth_ulp_enable(card); 25754a71df50SFrank Blaschka if (rc) { 2576d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); 25774a71df50SFrank Blaschka goto out_qdio; 25784a71df50SFrank Blaschka } 25794a71df50SFrank Blaschka rc = qeth_ulp_setup(card); 25804a71df50SFrank Blaschka if (rc) { 2581d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); 25824a71df50SFrank Blaschka goto out_qdio; 25834a71df50SFrank Blaschka } 25844a71df50SFrank Blaschka rc = qeth_alloc_qdio_buffers(card); 25854a71df50SFrank Blaschka if (rc) { 2586d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); 25874a71df50SFrank Blaschka goto out_qdio; 25884a71df50SFrank Blaschka } 25894a71df50SFrank Blaschka rc = qeth_qdio_establish(card); 25904a71df50SFrank Blaschka if (rc) { 2591d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); 25924a71df50SFrank Blaschka qeth_free_qdio_buffers(card); 25934a71df50SFrank Blaschka goto out_qdio; 25944a71df50SFrank Blaschka } 25954a71df50SFrank Blaschka rc = qeth_qdio_activate(card); 25964a71df50SFrank Blaschka if (rc) { 2597d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc); 25984a71df50SFrank Blaschka goto out_qdio; 25994a71df50SFrank Blaschka } 26004a71df50SFrank Blaschka rc = qeth_dm_act(card); 26014a71df50SFrank Blaschka if (rc) { 2602d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc); 26034a71df50SFrank Blaschka goto out_qdio; 26044a71df50SFrank Blaschka } 26054a71df50SFrank Blaschka 26064a71df50SFrank Blaschka return 0; 26074a71df50SFrank Blaschka out_qdio: 26084a71df50SFrank Blaschka qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD); 260922ae2790SUrsula Braun qdio_free(CARD_DDEV(card)); 26104a71df50SFrank Blaschka return rc; 26114a71df50SFrank Blaschka } 26124a71df50SFrank Blaschka 26134a71df50SFrank Blaschka void qeth_print_status_message(struct qeth_card *card) 26144a71df50SFrank Blaschka { 26154a71df50SFrank Blaschka switch (card->info.type) { 26165113fec0SUrsula Braun case QETH_CARD_TYPE_OSD: 26175113fec0SUrsula Braun case QETH_CARD_TYPE_OSM: 26185113fec0SUrsula Braun case QETH_CARD_TYPE_OSX: 26194a71df50SFrank Blaschka /* VM will use a non-zero first character 26204a71df50SFrank Blaschka * to indicate a HiperSockets like reporting 26214a71df50SFrank Blaschka * of the level OSA sets the first character to zero 26224a71df50SFrank Blaschka * */ 26234a71df50SFrank Blaschka if (!card->info.mcl_level[0]) { 26244a71df50SFrank Blaschka sprintf(card->info.mcl_level, "%02x%02x", 26254a71df50SFrank Blaschka card->info.mcl_level[2], 26264a71df50SFrank Blaschka card->info.mcl_level[3]); 26274a71df50SFrank Blaschka break; 26284a71df50SFrank Blaschka } 26294a71df50SFrank Blaschka /* fallthrough */ 26304a71df50SFrank Blaschka case QETH_CARD_TYPE_IQD: 2631906f1f07SKlaus-Dieter Wacker if ((card->info.guestlan) || 2632906f1f07SKlaus-Dieter Wacker (card->info.mcl_level[0] & 0x80)) { 26334a71df50SFrank Blaschka card->info.mcl_level[0] = (char) _ebcasc[(__u8) 26344a71df50SFrank Blaschka card->info.mcl_level[0]]; 26354a71df50SFrank Blaschka card->info.mcl_level[1] = (char) _ebcasc[(__u8) 26364a71df50SFrank Blaschka card->info.mcl_level[1]]; 26374a71df50SFrank Blaschka card->info.mcl_level[2] = (char) _ebcasc[(__u8) 26384a71df50SFrank Blaschka card->info.mcl_level[2]]; 26394a71df50SFrank Blaschka card->info.mcl_level[3] = (char) _ebcasc[(__u8) 26404a71df50SFrank Blaschka card->info.mcl_level[3]]; 26414a71df50SFrank Blaschka card->info.mcl_level[QETH_MCL_LENGTH] = 0; 26424a71df50SFrank Blaschka } 26434a71df50SFrank Blaschka break; 26444a71df50SFrank Blaschka default: 26454a71df50SFrank Blaschka memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1); 26464a71df50SFrank Blaschka } 2647239ff408SUrsula Braun dev_info(&card->gdev->dev, 2648239ff408SUrsula Braun "Device is a%s card%s%s%s\nwith link type %s.\n", 2649239ff408SUrsula Braun qeth_get_cardname(card), 2650239ff408SUrsula Braun (card->info.mcl_level[0]) ? " (level: " : "", 2651239ff408SUrsula Braun (card->info.mcl_level[0]) ? card->info.mcl_level : "", 2652239ff408SUrsula Braun (card->info.mcl_level[0]) ? ")" : "", 2653239ff408SUrsula Braun qeth_get_cardname_short(card)); 26544a71df50SFrank Blaschka } 26554a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_print_status_message); 26564a71df50SFrank Blaschka 26574a71df50SFrank Blaschka static void qeth_initialize_working_pool_list(struct qeth_card *card) 26584a71df50SFrank Blaschka { 26594a71df50SFrank Blaschka struct qeth_buffer_pool_entry *entry; 26604a71df50SFrank Blaschka 2661847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "inwrklst"); 26624a71df50SFrank Blaschka 26634a71df50SFrank Blaschka list_for_each_entry(entry, 26644a71df50SFrank Blaschka &card->qdio.init_pool.entry_list, init_list) { 26654a71df50SFrank Blaschka qeth_put_buffer_pool_entry(card, entry); 26664a71df50SFrank Blaschka } 26674a71df50SFrank Blaschka } 26684a71df50SFrank Blaschka 2669cef6ff22SJulian Wiedmann static struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry( 26704a71df50SFrank Blaschka struct qeth_card *card) 26714a71df50SFrank Blaschka { 26724a71df50SFrank Blaschka struct list_head *plh; 26734a71df50SFrank Blaschka struct qeth_buffer_pool_entry *entry; 26744a71df50SFrank Blaschka int i, free; 26754a71df50SFrank Blaschka struct page *page; 26764a71df50SFrank Blaschka 26774a71df50SFrank Blaschka if (list_empty(&card->qdio.in_buf_pool.entry_list)) 26784a71df50SFrank Blaschka return NULL; 26794a71df50SFrank Blaschka 26804a71df50SFrank Blaschka list_for_each(plh, &card->qdio.in_buf_pool.entry_list) { 26814a71df50SFrank Blaschka entry = list_entry(plh, struct qeth_buffer_pool_entry, list); 26824a71df50SFrank Blaschka free = 1; 26834a71df50SFrank Blaschka for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { 26844a71df50SFrank Blaschka if (page_count(virt_to_page(entry->elements[i])) > 1) { 26854a71df50SFrank Blaschka free = 0; 26864a71df50SFrank Blaschka break; 26874a71df50SFrank Blaschka } 26884a71df50SFrank Blaschka } 26894a71df50SFrank Blaschka if (free) { 26904a71df50SFrank Blaschka list_del_init(&entry->list); 26914a71df50SFrank Blaschka return entry; 26924a71df50SFrank Blaschka } 26934a71df50SFrank Blaschka } 26944a71df50SFrank Blaschka 26954a71df50SFrank Blaschka /* no free buffer in pool so take first one and swap pages */ 26964a71df50SFrank Blaschka entry = list_entry(card->qdio.in_buf_pool.entry_list.next, 26974a71df50SFrank Blaschka struct qeth_buffer_pool_entry, list); 26984a71df50SFrank Blaschka for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { 26994a71df50SFrank Blaschka if (page_count(virt_to_page(entry->elements[i])) > 1) { 2700508b3c4fSUrsula Braun page = alloc_page(GFP_ATOMIC); 27014a71df50SFrank Blaschka if (!page) { 27024a71df50SFrank Blaschka return NULL; 27034a71df50SFrank Blaschka } else { 27044a71df50SFrank Blaschka free_page((unsigned long)entry->elements[i]); 27054a71df50SFrank Blaschka entry->elements[i] = page_address(page); 27064a71df50SFrank Blaschka if (card->options.performance_stats) 27074a71df50SFrank Blaschka card->perf_stats.sg_alloc_page_rx++; 27084a71df50SFrank Blaschka } 27094a71df50SFrank Blaschka } 27104a71df50SFrank Blaschka } 27114a71df50SFrank Blaschka list_del_init(&entry->list); 27124a71df50SFrank Blaschka return entry; 27134a71df50SFrank Blaschka } 27144a71df50SFrank Blaschka 27154a71df50SFrank Blaschka static int qeth_init_input_buffer(struct qeth_card *card, 27164a71df50SFrank Blaschka struct qeth_qdio_buffer *buf) 27174a71df50SFrank Blaschka { 27184a71df50SFrank Blaschka struct qeth_buffer_pool_entry *pool_entry; 27194a71df50SFrank Blaschka int i; 27204a71df50SFrank Blaschka 2721b3332930SFrank Blaschka if ((card->options.cq == QETH_CQ_ENABLED) && (!buf->rx_skb)) { 272237cf05d2SJulian Wiedmann buf->rx_skb = netdev_alloc_skb(card->dev, 272337cf05d2SJulian Wiedmann QETH_RX_PULL_LEN + ETH_HLEN); 2724b3332930SFrank Blaschka if (!buf->rx_skb) 2725b3332930SFrank Blaschka return 1; 2726b3332930SFrank Blaschka } 2727b3332930SFrank Blaschka 27284a71df50SFrank Blaschka pool_entry = qeth_find_free_buffer_pool_entry(card); 27294a71df50SFrank Blaschka if (!pool_entry) 27304a71df50SFrank Blaschka return 1; 27314a71df50SFrank Blaschka 27324a71df50SFrank Blaschka /* 27334a71df50SFrank Blaschka * since the buffer is accessed only from the input_tasklet 27344a71df50SFrank Blaschka * there shouldn't be a need to synchronize; also, since we use 27354a71df50SFrank Blaschka * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off 27364a71df50SFrank Blaschka * buffers 27374a71df50SFrank Blaschka */ 27384a71df50SFrank Blaschka 27394a71df50SFrank Blaschka buf->pool_entry = pool_entry; 27404a71df50SFrank Blaschka for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { 27414a71df50SFrank Blaschka buf->buffer->element[i].length = PAGE_SIZE; 27424a71df50SFrank Blaschka buf->buffer->element[i].addr = pool_entry->elements[i]; 27434a71df50SFrank Blaschka if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1) 27443ec90878SJan Glauber buf->buffer->element[i].eflags = SBAL_EFLAGS_LAST_ENTRY; 27454a71df50SFrank Blaschka else 27463ec90878SJan Glauber buf->buffer->element[i].eflags = 0; 27473ec90878SJan Glauber buf->buffer->element[i].sflags = 0; 27484a71df50SFrank Blaschka } 27494a71df50SFrank Blaschka return 0; 27504a71df50SFrank Blaschka } 27514a71df50SFrank Blaschka 27524a71df50SFrank Blaschka int qeth_init_qdio_queues(struct qeth_card *card) 27534a71df50SFrank Blaschka { 27544a71df50SFrank Blaschka int i, j; 27554a71df50SFrank Blaschka int rc; 27564a71df50SFrank Blaschka 2757d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "initqdqs"); 27584a71df50SFrank Blaschka 27594a71df50SFrank Blaschka /* inbound queue */ 27601b45c80bSJulian Wiedmann qdio_reset_buffers(card->qdio.in_q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q); 27611b45c80bSJulian Wiedmann memset(&card->rx, 0, sizeof(struct qeth_rx)); 27624a71df50SFrank Blaschka qeth_initialize_working_pool_list(card); 27634a71df50SFrank Blaschka /*give only as many buffers to hardware as we have buffer pool entries*/ 27644a71df50SFrank Blaschka for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i) 27654a71df50SFrank Blaschka qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]); 27664a71df50SFrank Blaschka card->qdio.in_q->next_buf_to_init = 27674a71df50SFrank Blaschka card->qdio.in_buf_pool.buf_count - 1; 27684a71df50SFrank Blaschka rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0, 2769779e6e1cSJan Glauber card->qdio.in_buf_pool.buf_count - 1); 27704a71df50SFrank Blaschka if (rc) { 2771d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 27724a71df50SFrank Blaschka return rc; 27734a71df50SFrank Blaschka } 27740da9581dSEinar Lueck 27750da9581dSEinar Lueck /* completion */ 27760da9581dSEinar Lueck rc = qeth_cq_init(card); 27770da9581dSEinar Lueck if (rc) { 27780da9581dSEinar Lueck return rc; 27790da9581dSEinar Lueck } 27800da9581dSEinar Lueck 27814a71df50SFrank Blaschka /* outbound queue */ 27824a71df50SFrank Blaschka for (i = 0; i < card->qdio.no_out_queues; ++i) { 2783d445a4e2SSebastian Ott qdio_reset_buffers(card->qdio.out_qs[i]->qdio_bufs, 2784d445a4e2SSebastian Ott QDIO_MAX_BUFFERS_PER_Q); 27854a71df50SFrank Blaschka for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { 27864a71df50SFrank Blaschka qeth_clear_output_buffer(card->qdio.out_qs[i], 27873b346c18SJulian Wiedmann card->qdio.out_qs[i]->bufs[j]); 27884a71df50SFrank Blaschka } 27894a71df50SFrank Blaschka card->qdio.out_qs[i]->card = card; 27904a71df50SFrank Blaschka card->qdio.out_qs[i]->next_buf_to_fill = 0; 27914a71df50SFrank Blaschka card->qdio.out_qs[i]->do_pack = 0; 27924a71df50SFrank Blaschka atomic_set(&card->qdio.out_qs[i]->used_buffers, 0); 27934a71df50SFrank Blaschka atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0); 27944a71df50SFrank Blaschka atomic_set(&card->qdio.out_qs[i]->state, 27954a71df50SFrank Blaschka QETH_OUT_Q_UNLOCKED); 27964a71df50SFrank Blaschka } 27974a71df50SFrank Blaschka return 0; 27984a71df50SFrank Blaschka } 27994a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_init_qdio_queues); 28004a71df50SFrank Blaschka 2801cef6ff22SJulian Wiedmann static __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type) 28024a71df50SFrank Blaschka { 28034a71df50SFrank Blaschka switch (link_type) { 28044a71df50SFrank Blaschka case QETH_LINK_TYPE_HSTR: 28054a71df50SFrank Blaschka return 2; 28064a71df50SFrank Blaschka default: 28074a71df50SFrank Blaschka return 1; 28084a71df50SFrank Blaschka } 28094a71df50SFrank Blaschka } 28104a71df50SFrank Blaschka 28114a71df50SFrank Blaschka static void qeth_fill_ipacmd_header(struct qeth_card *card, 2812500abbf0SJulian Wiedmann struct qeth_ipa_cmd *cmd, 2813500abbf0SJulian Wiedmann enum qeth_ipa_cmds command, 28144a71df50SFrank Blaschka enum qeth_prot_versions prot) 28154a71df50SFrank Blaschka { 28164a71df50SFrank Blaschka cmd->hdr.command = command; 28174a71df50SFrank Blaschka cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST; 2818d22ffb5aSJulian Wiedmann /* cmd->hdr.seqno is set by qeth_send_control_data() */ 28194a71df50SFrank Blaschka cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type); 282092d27209SJulian Wiedmann cmd->hdr.rel_adapter_no = (u8) card->dev->dev_port; 28214fda3354SJulian Wiedmann cmd->hdr.prim_version_no = IS_LAYER2(card) ? 2 : 1; 28224a71df50SFrank Blaschka cmd->hdr.param_count = 1; 28234a71df50SFrank Blaschka cmd->hdr.prot_version = prot; 28244a71df50SFrank Blaschka } 28254a71df50SFrank Blaschka 2826c2153277SJulian Wiedmann void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, 2827c2153277SJulian Wiedmann u16 cmd_length) 2828605c9d5fSJulian Wiedmann { 2829c2153277SJulian Wiedmann u16 total_length = IPA_PDU_HEADER_SIZE + cmd_length; 2830605c9d5fSJulian Wiedmann u8 prot_type = qeth_mpc_select_prot_type(card); 2831605c9d5fSJulian Wiedmann 2832605c9d5fSJulian Wiedmann memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); 2833c2153277SJulian Wiedmann memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &total_length, 2); 2834605c9d5fSJulian Wiedmann memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1); 2835c2153277SJulian Wiedmann memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &cmd_length, 2); 2836c2153277SJulian Wiedmann memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &cmd_length, 2); 2837605c9d5fSJulian Wiedmann memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), 2838605c9d5fSJulian Wiedmann &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); 2839c2153277SJulian Wiedmann memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &cmd_length, 2); 2840605c9d5fSJulian Wiedmann } 2841605c9d5fSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd); 2842605c9d5fSJulian Wiedmann 28434a71df50SFrank Blaschka struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card, 28444a71df50SFrank Blaschka enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot) 28454a71df50SFrank Blaschka { 28464a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 28474a71df50SFrank Blaschka 28481aec42bcSThomas Richter iob = qeth_get_buffer(&card->write); 28491aec42bcSThomas Richter if (iob) { 2850c2153277SJulian Wiedmann qeth_prepare_ipa_cmd(card, iob, sizeof(struct qeth_ipa_cmd)); 2851ff5caa7aSJulian Wiedmann qeth_fill_ipacmd_header(card, __ipa_cmd(iob), ipacmd, prot); 28521aec42bcSThomas Richter } else { 28531aec42bcSThomas Richter dev_warn(&card->gdev->dev, 28541aec42bcSThomas Richter "The qeth driver ran out of channel command buffers\n"); 2855e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(1, "device %x ran out of channel command buffers", 2856e19e5be8SJulian Wiedmann CARD_DEVID(card)); 28571aec42bcSThomas Richter } 28584a71df50SFrank Blaschka 28594a71df50SFrank Blaschka return iob; 28604a71df50SFrank Blaschka } 28614a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer); 28624a71df50SFrank Blaschka 2863742d4d40SJulian Wiedmann static int qeth_send_ipa_cmd_cb(struct qeth_card *card, 2864742d4d40SJulian Wiedmann struct qeth_reply *reply, unsigned long data) 2865742d4d40SJulian Wiedmann { 2866742d4d40SJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 2867742d4d40SJulian Wiedmann 2868742d4d40SJulian Wiedmann return (cmd->hdr.return_code) ? -EIO : 0; 2869742d4d40SJulian Wiedmann } 2870742d4d40SJulian Wiedmann 2871efbbc1d5SEugene Crosser /** 2872efbbc1d5SEugene Crosser * qeth_send_ipa_cmd() - send an IPA command 2873efbbc1d5SEugene Crosser * 2874efbbc1d5SEugene Crosser * See qeth_send_control_data() for explanation of the arguments. 2875efbbc1d5SEugene Crosser */ 2876efbbc1d5SEugene Crosser 28774a71df50SFrank Blaschka int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, 28784a71df50SFrank Blaschka int (*reply_cb)(struct qeth_card *, struct qeth_reply*, 28794a71df50SFrank Blaschka unsigned long), 28804a71df50SFrank Blaschka void *reply_param) 28814a71df50SFrank Blaschka { 2882c2153277SJulian Wiedmann u16 length; 28834a71df50SFrank Blaschka int rc; 28844a71df50SFrank Blaschka 2885847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "sendipa"); 2886742d4d40SJulian Wiedmann 2887742d4d40SJulian Wiedmann if (reply_cb == NULL) 2888742d4d40SJulian Wiedmann reply_cb = qeth_send_ipa_cmd_cb; 2889c2153277SJulian Wiedmann memcpy(&length, QETH_IPA_PDU_LEN_TOTAL(iob->data), 2); 2890c2153277SJulian Wiedmann rc = qeth_send_control_data(card, length, iob, reply_cb, reply_param); 2891908abbb5SUrsula Braun if (rc == -ETIME) { 2892908abbb5SUrsula Braun qeth_clear_ipacmd_list(card); 2893908abbb5SUrsula Braun qeth_schedule_recovery(card); 2894908abbb5SUrsula Braun } 28954a71df50SFrank Blaschka return rc; 28964a71df50SFrank Blaschka } 28974a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd); 28984a71df50SFrank Blaschka 28994b7ae122SJulian Wiedmann static int qeth_send_startlan_cb(struct qeth_card *card, 29004b7ae122SJulian Wiedmann struct qeth_reply *reply, unsigned long data) 29014b7ae122SJulian Wiedmann { 29024b7ae122SJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 29034b7ae122SJulian Wiedmann 29044b7ae122SJulian Wiedmann if (cmd->hdr.return_code == IPA_RC_LAN_OFFLINE) 29054b7ae122SJulian Wiedmann return -ENETDOWN; 29064b7ae122SJulian Wiedmann 29074b7ae122SJulian Wiedmann return (cmd->hdr.return_code) ? -EIO : 0; 29084b7ae122SJulian Wiedmann } 29094b7ae122SJulian Wiedmann 291010340510SJulian Wiedmann static int qeth_send_startlan(struct qeth_card *card) 29114a71df50SFrank Blaschka { 29124a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 29134a71df50SFrank Blaschka 2914d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "strtlan"); 29154a71df50SFrank Blaschka 291670919e23SUrsula Braun iob = qeth_get_ipacmd_buffer(card, IPA_CMD_STARTLAN, 0); 29171aec42bcSThomas Richter if (!iob) 29181aec42bcSThomas Richter return -ENOMEM; 29194b7ae122SJulian Wiedmann return qeth_send_ipa_cmd(card, iob, qeth_send_startlan_cb, NULL); 29204a71df50SFrank Blaschka } 29214a71df50SFrank Blaschka 2922686c97eeSJulian Wiedmann static int qeth_setadpparms_inspect_rc(struct qeth_ipa_cmd *cmd) 29234a71df50SFrank Blaschka { 2924686c97eeSJulian Wiedmann if (!cmd->hdr.return_code) 29254a71df50SFrank Blaschka cmd->hdr.return_code = 29264a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.return_code; 2927686c97eeSJulian Wiedmann return cmd->hdr.return_code; 29284a71df50SFrank Blaschka } 29294a71df50SFrank Blaschka 29304a71df50SFrank Blaschka static int qeth_query_setadapterparms_cb(struct qeth_card *card, 29314a71df50SFrank Blaschka struct qeth_reply *reply, unsigned long data) 29324a71df50SFrank Blaschka { 2933686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 29344a71df50SFrank Blaschka 2935847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "quyadpcb"); 2936686c97eeSJulian Wiedmann if (qeth_setadpparms_inspect_rc(cmd)) 2937742d4d40SJulian Wiedmann return -EIO; 29384a71df50SFrank Blaschka 29395113fec0SUrsula Braun if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) { 29404a71df50SFrank Blaschka card->info.link_type = 29414a71df50SFrank Blaschka cmd->data.setadapterparms.data.query_cmds_supp.lan_type; 29425113fec0SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "lnk %d", card->info.link_type); 29435113fec0SUrsula Braun } 29444a71df50SFrank Blaschka card->options.adp.supported_funcs = 29454a71df50SFrank Blaschka cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds; 2946686c97eeSJulian Wiedmann return 0; 29474a71df50SFrank Blaschka } 29484a71df50SFrank Blaschka 2949eb3fb0baSStefan Raspl static struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card, 29504a71df50SFrank Blaschka __u32 command, __u32 cmdlen) 29514a71df50SFrank Blaschka { 29524a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 29534a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 29544a71df50SFrank Blaschka 29554a71df50SFrank Blaschka iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS, 29564a71df50SFrank Blaschka QETH_PROT_IPV4); 29571aec42bcSThomas Richter if (iob) { 2958ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 29594a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.cmdlength = cmdlen; 29604a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.command_code = command; 29614a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.used_total = 1; 29624a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.seq_no = 1; 29631aec42bcSThomas Richter } 29644a71df50SFrank Blaschka 29654a71df50SFrank Blaschka return iob; 29664a71df50SFrank Blaschka } 29674a71df50SFrank Blaschka 296809960b3aSJulian Wiedmann static int qeth_query_setadapterparms(struct qeth_card *card) 29694a71df50SFrank Blaschka { 29704a71df50SFrank Blaschka int rc; 29714a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 29724a71df50SFrank Blaschka 2973847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "queryadp"); 29744a71df50SFrank Blaschka iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED, 29754a71df50SFrank Blaschka sizeof(struct qeth_ipacmd_setadpparms)); 29761aec42bcSThomas Richter if (!iob) 29771aec42bcSThomas Richter return -ENOMEM; 29784a71df50SFrank Blaschka rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL); 29794a71df50SFrank Blaschka return rc; 29804a71df50SFrank Blaschka } 29814a71df50SFrank Blaschka 29821da74b1cSFrank Blaschka static int qeth_query_ipassists_cb(struct qeth_card *card, 29831da74b1cSFrank Blaschka struct qeth_reply *reply, unsigned long data) 29841da74b1cSFrank Blaschka { 29851da74b1cSFrank Blaschka struct qeth_ipa_cmd *cmd; 29861da74b1cSFrank Blaschka 29871da74b1cSFrank Blaschka QETH_DBF_TEXT(SETUP, 2, "qipasscb"); 29881da74b1cSFrank Blaschka 29891da74b1cSFrank Blaschka cmd = (struct qeth_ipa_cmd *) data; 2990a134884aSStefan Raspl 2991a134884aSStefan Raspl switch (cmd->hdr.return_code) { 2992742d4d40SJulian Wiedmann case IPA_RC_SUCCESS: 2993742d4d40SJulian Wiedmann break; 2994a134884aSStefan Raspl case IPA_RC_NOTSUPP: 2995a134884aSStefan Raspl case IPA_RC_L2_UNSUPPORTED_CMD: 2996a134884aSStefan Raspl QETH_DBF_TEXT(SETUP, 2, "ipaunsup"); 2997a134884aSStefan Raspl card->options.ipa4.supported_funcs |= IPA_SETADAPTERPARMS; 2998a134884aSStefan Raspl card->options.ipa6.supported_funcs |= IPA_SETADAPTERPARMS; 2999742d4d40SJulian Wiedmann return -EOPNOTSUPP; 3000a134884aSStefan Raspl default: 3001e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(1, "IPA_CMD_QIPASSIST on device %x: Unhandled rc=%#x\n", 3002742d4d40SJulian Wiedmann CARD_DEVID(card), cmd->hdr.return_code); 3003742d4d40SJulian Wiedmann return -EIO; 3004a134884aSStefan Raspl } 3005a134884aSStefan Raspl 30061da74b1cSFrank Blaschka if (cmd->hdr.prot_version == QETH_PROT_IPV4) { 30071da74b1cSFrank Blaschka card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported; 30081da74b1cSFrank Blaschka card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled; 3009a134884aSStefan Raspl } else if (cmd->hdr.prot_version == QETH_PROT_IPV6) { 30101da74b1cSFrank Blaschka card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported; 30111da74b1cSFrank Blaschka card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled; 3012a134884aSStefan Raspl } else 3013e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(1, "IPA_CMD_QIPASSIST on device %x: Flawed LIC detected\n", 3014e19e5be8SJulian Wiedmann CARD_DEVID(card)); 30151da74b1cSFrank Blaschka return 0; 30161da74b1cSFrank Blaschka } 30171da74b1cSFrank Blaschka 301809960b3aSJulian Wiedmann static int qeth_query_ipassists(struct qeth_card *card, 301909960b3aSJulian Wiedmann enum qeth_prot_versions prot) 30201da74b1cSFrank Blaschka { 30211da74b1cSFrank Blaschka int rc; 30221da74b1cSFrank Blaschka struct qeth_cmd_buffer *iob; 30231da74b1cSFrank Blaschka 30241da74b1cSFrank Blaschka QETH_DBF_TEXT_(SETUP, 2, "qipassi%i", prot); 30251da74b1cSFrank Blaschka iob = qeth_get_ipacmd_buffer(card, IPA_CMD_QIPASSIST, prot); 30261aec42bcSThomas Richter if (!iob) 30271aec42bcSThomas Richter return -ENOMEM; 30281da74b1cSFrank Blaschka rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL); 30291da74b1cSFrank Blaschka return rc; 30301da74b1cSFrank Blaschka } 30311da74b1cSFrank Blaschka 303245cbb2e4SStefan Raspl static int qeth_query_switch_attributes_cb(struct qeth_card *card, 303345cbb2e4SStefan Raspl struct qeth_reply *reply, unsigned long data) 303445cbb2e4SStefan Raspl { 3035686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 303645cbb2e4SStefan Raspl struct qeth_query_switch_attributes *attrs; 3037686c97eeSJulian Wiedmann struct qeth_switch_info *sw_info; 303845cbb2e4SStefan Raspl 303945cbb2e4SStefan Raspl QETH_CARD_TEXT(card, 2, "qswiatcb"); 3040686c97eeSJulian Wiedmann if (qeth_setadpparms_inspect_rc(cmd)) 3041742d4d40SJulian Wiedmann return -EIO; 3042686c97eeSJulian Wiedmann 304345cbb2e4SStefan Raspl sw_info = (struct qeth_switch_info *)reply->param; 304445cbb2e4SStefan Raspl attrs = &cmd->data.setadapterparms.data.query_switch_attributes; 304545cbb2e4SStefan Raspl sw_info->capabilities = attrs->capabilities; 304645cbb2e4SStefan Raspl sw_info->settings = attrs->settings; 304745cbb2e4SStefan Raspl QETH_CARD_TEXT_(card, 2, "%04x%04x", sw_info->capabilities, 304845cbb2e4SStefan Raspl sw_info->settings); 304945cbb2e4SStefan Raspl return 0; 305045cbb2e4SStefan Raspl } 305145cbb2e4SStefan Raspl 305245cbb2e4SStefan Raspl int qeth_query_switch_attributes(struct qeth_card *card, 305345cbb2e4SStefan Raspl struct qeth_switch_info *sw_info) 305445cbb2e4SStefan Raspl { 305545cbb2e4SStefan Raspl struct qeth_cmd_buffer *iob; 305645cbb2e4SStefan Raspl 305745cbb2e4SStefan Raspl QETH_CARD_TEXT(card, 2, "qswiattr"); 305845cbb2e4SStefan Raspl if (!qeth_adp_supported(card, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES)) 305945cbb2e4SStefan Raspl return -EOPNOTSUPP; 306045cbb2e4SStefan Raspl if (!netif_carrier_ok(card->dev)) 306145cbb2e4SStefan Raspl return -ENOMEDIUM; 306245cbb2e4SStefan Raspl iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES, 306345cbb2e4SStefan Raspl sizeof(struct qeth_ipacmd_setadpparms_hdr)); 30641aec42bcSThomas Richter if (!iob) 30651aec42bcSThomas Richter return -ENOMEM; 306645cbb2e4SStefan Raspl return qeth_send_ipa_cmd(card, iob, 306745cbb2e4SStefan Raspl qeth_query_switch_attributes_cb, sw_info); 306845cbb2e4SStefan Raspl } 306945cbb2e4SStefan Raspl 30701da74b1cSFrank Blaschka static int qeth_query_setdiagass_cb(struct qeth_card *card, 30711da74b1cSFrank Blaschka struct qeth_reply *reply, unsigned long data) 30721da74b1cSFrank Blaschka { 3073742d4d40SJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 3074742d4d40SJulian Wiedmann u16 rc = cmd->hdr.return_code; 30751da74b1cSFrank Blaschka 3076742d4d40SJulian Wiedmann if (rc) { 30771da74b1cSFrank Blaschka QETH_CARD_TEXT_(card, 2, "diagq:%x", rc); 3078742d4d40SJulian Wiedmann return -EIO; 3079742d4d40SJulian Wiedmann } 3080742d4d40SJulian Wiedmann 30811da74b1cSFrank Blaschka card->info.diagass_support = cmd->data.diagass.ext; 30821da74b1cSFrank Blaschka return 0; 30831da74b1cSFrank Blaschka } 30841da74b1cSFrank Blaschka 30851da74b1cSFrank Blaschka static int qeth_query_setdiagass(struct qeth_card *card) 30861da74b1cSFrank Blaschka { 30871da74b1cSFrank Blaschka struct qeth_cmd_buffer *iob; 30881da74b1cSFrank Blaschka struct qeth_ipa_cmd *cmd; 30891da74b1cSFrank Blaschka 30901da74b1cSFrank Blaschka QETH_DBF_TEXT(SETUP, 2, "qdiagass"); 30911da74b1cSFrank Blaschka iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0); 30921aec42bcSThomas Richter if (!iob) 30931aec42bcSThomas Richter return -ENOMEM; 3094ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 30951da74b1cSFrank Blaschka cmd->data.diagass.subcmd_len = 16; 30961da74b1cSFrank Blaschka cmd->data.diagass.subcmd = QETH_DIAGS_CMD_QUERY; 30971da74b1cSFrank Blaschka return qeth_send_ipa_cmd(card, iob, qeth_query_setdiagass_cb, NULL); 30981da74b1cSFrank Blaschka } 30991da74b1cSFrank Blaschka 31001da74b1cSFrank Blaschka static void qeth_get_trap_id(struct qeth_card *card, struct qeth_trap_id *tid) 31011da74b1cSFrank Blaschka { 31021da74b1cSFrank Blaschka unsigned long info = get_zeroed_page(GFP_KERNEL); 31031da74b1cSFrank Blaschka struct sysinfo_2_2_2 *info222 = (struct sysinfo_2_2_2 *)info; 31041da74b1cSFrank Blaschka struct sysinfo_3_2_2 *info322 = (struct sysinfo_3_2_2 *)info; 31051da74b1cSFrank Blaschka struct ccw_dev_id ccwid; 3106caf757c6SHeiko Carstens int level; 31071da74b1cSFrank Blaschka 31081da74b1cSFrank Blaschka tid->chpid = card->info.chpid; 31091da74b1cSFrank Blaschka ccw_device_get_id(CARD_RDEV(card), &ccwid); 31101da74b1cSFrank Blaschka tid->ssid = ccwid.ssid; 31111da74b1cSFrank Blaschka tid->devno = ccwid.devno; 31121da74b1cSFrank Blaschka if (!info) 31131da74b1cSFrank Blaschka return; 3114caf757c6SHeiko Carstens level = stsi(NULL, 0, 0, 0); 3115caf757c6SHeiko Carstens if ((level >= 2) && (stsi(info222, 2, 2, 2) == 0)) 31161da74b1cSFrank Blaschka tid->lparnr = info222->lpar_number; 3117caf757c6SHeiko Carstens if ((level >= 3) && (stsi(info322, 3, 2, 2) == 0)) { 31181da74b1cSFrank Blaschka EBCASC(info322->vm[0].name, sizeof(info322->vm[0].name)); 31191da74b1cSFrank Blaschka memcpy(tid->vmname, info322->vm[0].name, sizeof(tid->vmname)); 31201da74b1cSFrank Blaschka } 31211da74b1cSFrank Blaschka free_page(info); 31221da74b1cSFrank Blaschka return; 31231da74b1cSFrank Blaschka } 31241da74b1cSFrank Blaschka 31251da74b1cSFrank Blaschka static int qeth_hw_trap_cb(struct qeth_card *card, 31261da74b1cSFrank Blaschka struct qeth_reply *reply, unsigned long data) 31271da74b1cSFrank Blaschka { 3128742d4d40SJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 3129742d4d40SJulian Wiedmann u16 rc = cmd->hdr.return_code; 31301da74b1cSFrank Blaschka 3131742d4d40SJulian Wiedmann if (rc) { 31321da74b1cSFrank Blaschka QETH_CARD_TEXT_(card, 2, "trapc:%x", rc); 3133742d4d40SJulian Wiedmann return -EIO; 3134742d4d40SJulian Wiedmann } 31351da74b1cSFrank Blaschka return 0; 31361da74b1cSFrank Blaschka } 31371da74b1cSFrank Blaschka 31381da74b1cSFrank Blaschka int qeth_hw_trap(struct qeth_card *card, enum qeth_diags_trap_action action) 31391da74b1cSFrank Blaschka { 31401da74b1cSFrank Blaschka struct qeth_cmd_buffer *iob; 31411da74b1cSFrank Blaschka struct qeth_ipa_cmd *cmd; 31421da74b1cSFrank Blaschka 31431da74b1cSFrank Blaschka QETH_DBF_TEXT(SETUP, 2, "diagtrap"); 31441da74b1cSFrank Blaschka iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0); 31451aec42bcSThomas Richter if (!iob) 31461aec42bcSThomas Richter return -ENOMEM; 3147ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 31481da74b1cSFrank Blaschka cmd->data.diagass.subcmd_len = 80; 31491da74b1cSFrank Blaschka cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRAP; 31501da74b1cSFrank Blaschka cmd->data.diagass.type = 1; 31511da74b1cSFrank Blaschka cmd->data.diagass.action = action; 31521da74b1cSFrank Blaschka switch (action) { 31531da74b1cSFrank Blaschka case QETH_DIAGS_TRAP_ARM: 31541da74b1cSFrank Blaschka cmd->data.diagass.options = 0x0003; 31551da74b1cSFrank Blaschka cmd->data.diagass.ext = 0x00010000 + 31561da74b1cSFrank Blaschka sizeof(struct qeth_trap_id); 31571da74b1cSFrank Blaschka qeth_get_trap_id(card, 31581da74b1cSFrank Blaschka (struct qeth_trap_id *)cmd->data.diagass.cdata); 31591da74b1cSFrank Blaschka break; 31601da74b1cSFrank Blaschka case QETH_DIAGS_TRAP_DISARM: 31611da74b1cSFrank Blaschka cmd->data.diagass.options = 0x0001; 31621da74b1cSFrank Blaschka break; 31631da74b1cSFrank Blaschka case QETH_DIAGS_TRAP_CAPTURE: 31641da74b1cSFrank Blaschka break; 31651da74b1cSFrank Blaschka } 31661da74b1cSFrank Blaschka return qeth_send_ipa_cmd(card, iob, qeth_hw_trap_cb, NULL); 31671da74b1cSFrank Blaschka } 31681da74b1cSFrank Blaschka EXPORT_SYMBOL_GPL(qeth_hw_trap); 31691da74b1cSFrank Blaschka 3170d73ef324SJulian Wiedmann static int qeth_check_qdio_errors(struct qeth_card *card, 3171d73ef324SJulian Wiedmann struct qdio_buffer *buf, 3172d73ef324SJulian Wiedmann unsigned int qdio_error, 3173d73ef324SJulian Wiedmann const char *dbftext) 31744a71df50SFrank Blaschka { 3175779e6e1cSJan Glauber if (qdio_error) { 3176847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, dbftext); 317738593d01SCarsten Otte QETH_CARD_TEXT_(card, 2, " F15=%02X", 31783ec90878SJan Glauber buf->element[15].sflags); 317938593d01SCarsten Otte QETH_CARD_TEXT_(card, 2, " F14=%02X", 31803ec90878SJan Glauber buf->element[14].sflags); 318138593d01SCarsten Otte QETH_CARD_TEXT_(card, 2, " qerr=%X", qdio_error); 31823ec90878SJan Glauber if ((buf->element[15].sflags) == 0x12) { 318376b11f8eSUrsula Braun card->stats.rx_dropped++; 318476b11f8eSUrsula Braun return 0; 318576b11f8eSUrsula Braun } else 31864a71df50SFrank Blaschka return 1; 31874a71df50SFrank Blaschka } 31884a71df50SFrank Blaschka return 0; 31894a71df50SFrank Blaschka } 31904a71df50SFrank Blaschka 3191d73ef324SJulian Wiedmann static void qeth_queue_input_buffer(struct qeth_card *card, int index) 31924a71df50SFrank Blaschka { 31934a71df50SFrank Blaschka struct qeth_qdio_q *queue = card->qdio.in_q; 3194b3332930SFrank Blaschka struct list_head *lh; 31954a71df50SFrank Blaschka int count; 31964a71df50SFrank Blaschka int i; 31974a71df50SFrank Blaschka int rc; 31984a71df50SFrank Blaschka int newcount = 0; 31994a71df50SFrank Blaschka 32004a71df50SFrank Blaschka count = (index < queue->next_buf_to_init)? 32014a71df50SFrank Blaschka card->qdio.in_buf_pool.buf_count - 32024a71df50SFrank Blaschka (queue->next_buf_to_init - index) : 32034a71df50SFrank Blaschka card->qdio.in_buf_pool.buf_count - 32044a71df50SFrank Blaschka (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index); 32054a71df50SFrank Blaschka /* only requeue at a certain threshold to avoid SIGAs */ 32064a71df50SFrank Blaschka if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) { 32074a71df50SFrank Blaschka for (i = queue->next_buf_to_init; 32084a71df50SFrank Blaschka i < queue->next_buf_to_init + count; ++i) { 32094a71df50SFrank Blaschka if (qeth_init_input_buffer(card, 32104a71df50SFrank Blaschka &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) { 32114a71df50SFrank Blaschka break; 32124a71df50SFrank Blaschka } else { 32134a71df50SFrank Blaschka newcount++; 32144a71df50SFrank Blaschka } 32154a71df50SFrank Blaschka } 32164a71df50SFrank Blaschka 32174a71df50SFrank Blaschka if (newcount < count) { 32184a71df50SFrank Blaschka /* we are in memory shortage so we switch back to 32194a71df50SFrank Blaschka traditional skb allocation and drop packages */ 32204a71df50SFrank Blaschka atomic_set(&card->force_alloc_skb, 3); 32214a71df50SFrank Blaschka count = newcount; 32224a71df50SFrank Blaschka } else { 32234a71df50SFrank Blaschka atomic_add_unless(&card->force_alloc_skb, -1, 0); 32244a71df50SFrank Blaschka } 32254a71df50SFrank Blaschka 3226b3332930SFrank Blaschka if (!count) { 3227b3332930SFrank Blaschka i = 0; 3228b3332930SFrank Blaschka list_for_each(lh, &card->qdio.in_buf_pool.entry_list) 3229b3332930SFrank Blaschka i++; 3230b3332930SFrank Blaschka if (i == card->qdio.in_buf_pool.buf_count) { 3231b3332930SFrank Blaschka QETH_CARD_TEXT(card, 2, "qsarbw"); 3232b3332930SFrank Blaschka card->reclaim_index = index; 3233b3332930SFrank Blaschka schedule_delayed_work( 3234b3332930SFrank Blaschka &card->buffer_reclaim_work, 3235b3332930SFrank Blaschka QETH_RECLAIM_WORK_TIME); 3236b3332930SFrank Blaschka } 3237b3332930SFrank Blaschka return; 3238b3332930SFrank Blaschka } 3239b3332930SFrank Blaschka 32404a71df50SFrank Blaschka /* 32414a71df50SFrank Blaschka * according to old code it should be avoided to requeue all 32424a71df50SFrank Blaschka * 128 buffers in order to benefit from PCI avoidance. 32434a71df50SFrank Blaschka * this function keeps at least one buffer (the buffer at 32444a71df50SFrank Blaschka * 'index') un-requeued -> this buffer is the first buffer that 32454a71df50SFrank Blaschka * will be requeued the next time 32464a71df50SFrank Blaschka */ 3247779e6e1cSJan Glauber rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 3248779e6e1cSJan Glauber queue->next_buf_to_init, count); 32494a71df50SFrank Blaschka if (rc) { 3250847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "qinberr"); 32514a71df50SFrank Blaschka } 32524a71df50SFrank Blaschka queue->next_buf_to_init = (queue->next_buf_to_init + count) % 32534a71df50SFrank Blaschka QDIO_MAX_BUFFERS_PER_Q; 32544a71df50SFrank Blaschka } 32554a71df50SFrank Blaschka } 3256d73ef324SJulian Wiedmann 3257d73ef324SJulian Wiedmann static void qeth_buffer_reclaim_work(struct work_struct *work) 3258d73ef324SJulian Wiedmann { 3259d73ef324SJulian Wiedmann struct qeth_card *card = container_of(work, struct qeth_card, 3260d73ef324SJulian Wiedmann buffer_reclaim_work.work); 3261d73ef324SJulian Wiedmann 3262d73ef324SJulian Wiedmann QETH_CARD_TEXT_(card, 2, "brw:%x", card->reclaim_index); 3263d73ef324SJulian Wiedmann qeth_queue_input_buffer(card, card->reclaim_index); 3264d73ef324SJulian Wiedmann } 32654a71df50SFrank Blaschka 3266d7a39937SJulian Wiedmann static void qeth_handle_send_error(struct qeth_card *card, 3267779e6e1cSJan Glauber struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err) 32684a71df50SFrank Blaschka { 32693ec90878SJan Glauber int sbalf15 = buffer->buffer->element[15].sflags; 32704a71df50SFrank Blaschka 3271847a50fdSCarsten Otte QETH_CARD_TEXT(card, 6, "hdsnderr"); 327258490f18SKlaus-Dieter Wacker if (card->info.type == QETH_CARD_TYPE_IQD) { 327358490f18SKlaus-Dieter Wacker if (sbalf15 == 0) { 327458490f18SKlaus-Dieter Wacker qdio_err = 0; 327558490f18SKlaus-Dieter Wacker } else { 327658490f18SKlaus-Dieter Wacker qdio_err = 1; 327758490f18SKlaus-Dieter Wacker } 327858490f18SKlaus-Dieter Wacker } 327976b11f8eSUrsula Braun qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qouterr"); 3280d303b6fdSJan Glauber 3281d303b6fdSJan Glauber if (!qdio_err) 3282d7a39937SJulian Wiedmann return; 3283d303b6fdSJan Glauber 3284d303b6fdSJan Glauber if ((sbalf15 >= 15) && (sbalf15 <= 31)) 3285d7a39937SJulian Wiedmann return; 3286d303b6fdSJan Glauber 3287847a50fdSCarsten Otte QETH_CARD_TEXT(card, 1, "lnkfail"); 3288847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 1, "%04x %02x", 32894a71df50SFrank Blaschka (u16)qdio_err, (u8)sbalf15); 32904a71df50SFrank Blaschka } 32914a71df50SFrank Blaschka 3292664e42acSJulian Wiedmann /** 3293664e42acSJulian Wiedmann * qeth_prep_flush_pack_buffer - Prepares flushing of a packing buffer. 3294664e42acSJulian Wiedmann * @queue: queue to check for packing buffer 3295664e42acSJulian Wiedmann * 3296664e42acSJulian Wiedmann * Returns number of buffers that were prepared for flush. 3297664e42acSJulian Wiedmann */ 3298664e42acSJulian Wiedmann static int qeth_prep_flush_pack_buffer(struct qeth_qdio_out_q *queue) 3299664e42acSJulian Wiedmann { 3300664e42acSJulian Wiedmann struct qeth_qdio_out_buffer *buffer; 3301664e42acSJulian Wiedmann 3302664e42acSJulian Wiedmann buffer = queue->bufs[queue->next_buf_to_fill]; 3303664e42acSJulian Wiedmann if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) && 3304664e42acSJulian Wiedmann (buffer->next_element_to_fill > 0)) { 3305664e42acSJulian Wiedmann /* it's a packing buffer */ 3306664e42acSJulian Wiedmann atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); 3307664e42acSJulian Wiedmann queue->next_buf_to_fill = 3308664e42acSJulian Wiedmann (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q; 3309664e42acSJulian Wiedmann return 1; 3310664e42acSJulian Wiedmann } 3311664e42acSJulian Wiedmann return 0; 3312664e42acSJulian Wiedmann } 3313664e42acSJulian Wiedmann 33144a71df50SFrank Blaschka /* 33154a71df50SFrank Blaschka * Switched to packing state if the number of used buffers on a queue 33164a71df50SFrank Blaschka * reaches a certain limit. 33174a71df50SFrank Blaschka */ 33184a71df50SFrank Blaschka static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue) 33194a71df50SFrank Blaschka { 33204a71df50SFrank Blaschka if (!queue->do_pack) { 33214a71df50SFrank Blaschka if (atomic_read(&queue->used_buffers) 33224a71df50SFrank Blaschka >= QETH_HIGH_WATERMARK_PACK){ 33234a71df50SFrank Blaschka /* switch non-PACKING -> PACKING */ 3324847a50fdSCarsten Otte QETH_CARD_TEXT(queue->card, 6, "np->pack"); 33254a71df50SFrank Blaschka if (queue->card->options.performance_stats) 33264a71df50SFrank Blaschka queue->card->perf_stats.sc_dp_p++; 33274a71df50SFrank Blaschka queue->do_pack = 1; 33284a71df50SFrank Blaschka } 33294a71df50SFrank Blaschka } 33304a71df50SFrank Blaschka } 33314a71df50SFrank Blaschka 33324a71df50SFrank Blaschka /* 33334a71df50SFrank Blaschka * Switches from packing to non-packing mode. If there is a packing 33344a71df50SFrank Blaschka * buffer on the queue this buffer will be prepared to be flushed. 33354a71df50SFrank Blaschka * In that case 1 is returned to inform the caller. If no buffer 33364a71df50SFrank Blaschka * has to be flushed, zero is returned. 33374a71df50SFrank Blaschka */ 33384a71df50SFrank Blaschka static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue) 33394a71df50SFrank Blaschka { 33404a71df50SFrank Blaschka if (queue->do_pack) { 33414a71df50SFrank Blaschka if (atomic_read(&queue->used_buffers) 33424a71df50SFrank Blaschka <= QETH_LOW_WATERMARK_PACK) { 33434a71df50SFrank Blaschka /* switch PACKING -> non-PACKING */ 3344847a50fdSCarsten Otte QETH_CARD_TEXT(queue->card, 6, "pack->np"); 33454a71df50SFrank Blaschka if (queue->card->options.performance_stats) 33464a71df50SFrank Blaschka queue->card->perf_stats.sc_p_dp++; 33474a71df50SFrank Blaschka queue->do_pack = 0; 3348664e42acSJulian Wiedmann return qeth_prep_flush_pack_buffer(queue); 33494a71df50SFrank Blaschka } 33504a71df50SFrank Blaschka } 33514a71df50SFrank Blaschka return 0; 33524a71df50SFrank Blaschka } 33534a71df50SFrank Blaschka 3354779e6e1cSJan Glauber static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index, 3355779e6e1cSJan Glauber int count) 33564a71df50SFrank Blaschka { 33574a71df50SFrank Blaschka struct qeth_qdio_out_buffer *buf; 33584a71df50SFrank Blaschka int rc; 33594a71df50SFrank Blaschka int i; 33604a71df50SFrank Blaschka unsigned int qdio_flags; 33614a71df50SFrank Blaschka 33624a71df50SFrank Blaschka for (i = index; i < index + count; ++i) { 33630da9581dSEinar Lueck int bidx = i % QDIO_MAX_BUFFERS_PER_Q; 33640da9581dSEinar Lueck buf = queue->bufs[bidx]; 33653ec90878SJan Glauber buf->buffer->element[buf->next_element_to_fill - 1].eflags |= 33663ec90878SJan Glauber SBAL_EFLAGS_LAST_ENTRY; 33674a71df50SFrank Blaschka 33680da9581dSEinar Lueck if (queue->bufstates) 33690da9581dSEinar Lueck queue->bufstates[bidx].user = buf; 33700da9581dSEinar Lueck 33714a71df50SFrank Blaschka if (queue->card->info.type == QETH_CARD_TYPE_IQD) 33724a71df50SFrank Blaschka continue; 33734a71df50SFrank Blaschka 33744a71df50SFrank Blaschka if (!queue->do_pack) { 33754a71df50SFrank Blaschka if ((atomic_read(&queue->used_buffers) >= 33764a71df50SFrank Blaschka (QETH_HIGH_WATERMARK_PACK - 33774a71df50SFrank Blaschka QETH_WATERMARK_PACK_FUZZ)) && 33784a71df50SFrank Blaschka !atomic_read(&queue->set_pci_flags_count)) { 33794a71df50SFrank Blaschka /* it's likely that we'll go to packing 33804a71df50SFrank Blaschka * mode soon */ 33814a71df50SFrank Blaschka atomic_inc(&queue->set_pci_flags_count); 33823ec90878SJan Glauber buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ; 33834a71df50SFrank Blaschka } 33844a71df50SFrank Blaschka } else { 33854a71df50SFrank Blaschka if (!atomic_read(&queue->set_pci_flags_count)) { 33864a71df50SFrank Blaschka /* 33874a71df50SFrank Blaschka * there's no outstanding PCI any more, so we 33884a71df50SFrank Blaschka * have to request a PCI to be sure the the PCI 33894a71df50SFrank Blaschka * will wake at some time in the future then we 33904a71df50SFrank Blaschka * can flush packed buffers that might still be 33914a71df50SFrank Blaschka * hanging around, which can happen if no 33924a71df50SFrank Blaschka * further send was requested by the stack 33934a71df50SFrank Blaschka */ 33944a71df50SFrank Blaschka atomic_inc(&queue->set_pci_flags_count); 33953ec90878SJan Glauber buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ; 33964a71df50SFrank Blaschka } 33974a71df50SFrank Blaschka } 33984a71df50SFrank Blaschka } 33994a71df50SFrank Blaschka 34003e66bab3SFlorian Westphal netif_trans_update(queue->card->dev); 34014a71df50SFrank Blaschka qdio_flags = QDIO_FLAG_SYNC_OUTPUT; 34024a71df50SFrank Blaschka if (atomic_read(&queue->set_pci_flags_count)) 34034a71df50SFrank Blaschka qdio_flags |= QDIO_FLAG_PCI_OUT; 3404a702349aSJulian Wiedmann atomic_add(count, &queue->used_buffers); 34054a71df50SFrank Blaschka rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags, 3406779e6e1cSJan Glauber queue->queue_no, index, count); 34074a71df50SFrank Blaschka if (rc) { 3408d303b6fdSJan Glauber queue->card->stats.tx_errors += count; 3409d303b6fdSJan Glauber /* ignore temporary SIGA errors without busy condition */ 34101549d13fSJan Glauber if (rc == -ENOBUFS) 3411d303b6fdSJan Glauber return; 3412847a50fdSCarsten Otte QETH_CARD_TEXT(queue->card, 2, "flushbuf"); 34130da9581dSEinar Lueck QETH_CARD_TEXT_(queue->card, 2, " q%d", queue->queue_no); 34140da9581dSEinar Lueck QETH_CARD_TEXT_(queue->card, 2, " idx%d", index); 34150da9581dSEinar Lueck QETH_CARD_TEXT_(queue->card, 2, " c%d", count); 3416847a50fdSCarsten Otte QETH_CARD_TEXT_(queue->card, 2, " err%d", rc); 3417d303b6fdSJan Glauber 34184a71df50SFrank Blaschka /* this must not happen under normal circumstances. if it 34194a71df50SFrank Blaschka * happens something is really wrong -> recover */ 34204a71df50SFrank Blaschka qeth_schedule_recovery(queue->card); 34214a71df50SFrank Blaschka return; 34224a71df50SFrank Blaschka } 34234a71df50SFrank Blaschka if (queue->card->options.performance_stats) 34244a71df50SFrank Blaschka queue->card->perf_stats.bufs_sent += count; 34254a71df50SFrank Blaschka } 34264a71df50SFrank Blaschka 34274a71df50SFrank Blaschka static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue) 34284a71df50SFrank Blaschka { 34294a71df50SFrank Blaschka int index; 34304a71df50SFrank Blaschka int flush_cnt = 0; 34314a71df50SFrank Blaschka int q_was_packing = 0; 34324a71df50SFrank Blaschka 34334a71df50SFrank Blaschka /* 34344a71df50SFrank Blaschka * check if weed have to switch to non-packing mode or if 34354a71df50SFrank Blaschka * we have to get a pci flag out on the queue 34364a71df50SFrank Blaschka */ 34374a71df50SFrank Blaschka if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) || 34384a71df50SFrank Blaschka !atomic_read(&queue->set_pci_flags_count)) { 34394a71df50SFrank Blaschka if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) == 34404a71df50SFrank Blaschka QETH_OUT_Q_UNLOCKED) { 34414a71df50SFrank Blaschka /* 34424a71df50SFrank Blaschka * If we get in here, there was no action in 34434a71df50SFrank Blaschka * do_send_packet. So, we check if there is a 34444a71df50SFrank Blaschka * packing buffer to be flushed here. 34454a71df50SFrank Blaschka */ 34464a71df50SFrank Blaschka netif_stop_queue(queue->card->dev); 34474a71df50SFrank Blaschka index = queue->next_buf_to_fill; 34484a71df50SFrank Blaschka q_was_packing = queue->do_pack; 34494a71df50SFrank Blaschka /* queue->do_pack may change */ 34504a71df50SFrank Blaschka barrier(); 34514a71df50SFrank Blaschka flush_cnt += qeth_switch_to_nonpacking_if_needed(queue); 34524a71df50SFrank Blaschka if (!flush_cnt && 34534a71df50SFrank Blaschka !atomic_read(&queue->set_pci_flags_count)) 3454664e42acSJulian Wiedmann flush_cnt += qeth_prep_flush_pack_buffer(queue); 34554a71df50SFrank Blaschka if (queue->card->options.performance_stats && 34564a71df50SFrank Blaschka q_was_packing) 34574a71df50SFrank Blaschka queue->card->perf_stats.bufs_sent_pack += 34584a71df50SFrank Blaschka flush_cnt; 34594a71df50SFrank Blaschka if (flush_cnt) 3460779e6e1cSJan Glauber qeth_flush_buffers(queue, index, flush_cnt); 34614a71df50SFrank Blaschka atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); 34624a71df50SFrank Blaschka } 34634a71df50SFrank Blaschka } 34644a71df50SFrank Blaschka } 34654a71df50SFrank Blaschka 34667bcd64ebSJulian Wiedmann static void qeth_qdio_start_poll(struct ccw_device *ccwdev, int queue, 3467a1c3ed4cSFrank Blaschka unsigned long card_ptr) 3468a1c3ed4cSFrank Blaschka { 3469a1c3ed4cSFrank Blaschka struct qeth_card *card = (struct qeth_card *)card_ptr; 3470a1c3ed4cSFrank Blaschka 3471d3d1b205SJulian Wiedmann if (card->dev->flags & IFF_UP) 3472a1c3ed4cSFrank Blaschka napi_schedule(&card->napi); 3473a1c3ed4cSFrank Blaschka } 3474a1c3ed4cSFrank Blaschka 34750da9581dSEinar Lueck int qeth_configure_cq(struct qeth_card *card, enum qeth_cq cq) 34760da9581dSEinar Lueck { 34770da9581dSEinar Lueck int rc; 34780da9581dSEinar Lueck 34790da9581dSEinar Lueck if (card->options.cq == QETH_CQ_NOTAVAILABLE) { 34800da9581dSEinar Lueck rc = -1; 34810da9581dSEinar Lueck goto out; 34820da9581dSEinar Lueck } else { 34830da9581dSEinar Lueck if (card->options.cq == cq) { 34840da9581dSEinar Lueck rc = 0; 34850da9581dSEinar Lueck goto out; 34860da9581dSEinar Lueck } 34870da9581dSEinar Lueck 34880da9581dSEinar Lueck if (card->state != CARD_STATE_DOWN && 34890da9581dSEinar Lueck card->state != CARD_STATE_RECOVER) { 34900da9581dSEinar Lueck rc = -1; 34910da9581dSEinar Lueck goto out; 34920da9581dSEinar Lueck } 34930da9581dSEinar Lueck 34940da9581dSEinar Lueck qeth_free_qdio_buffers(card); 34950da9581dSEinar Lueck card->options.cq = cq; 34960da9581dSEinar Lueck rc = 0; 34970da9581dSEinar Lueck } 34980da9581dSEinar Lueck out: 34990da9581dSEinar Lueck return rc; 35000da9581dSEinar Lueck 35010da9581dSEinar Lueck } 35020da9581dSEinar Lueck EXPORT_SYMBOL_GPL(qeth_configure_cq); 35030da9581dSEinar Lueck 35043b346c18SJulian Wiedmann static void qeth_qdio_cq_handler(struct qeth_card *card, unsigned int qdio_err, 35053b346c18SJulian Wiedmann unsigned int queue, int first_element, 35063b346c18SJulian Wiedmann int count) 35073b346c18SJulian Wiedmann { 35080da9581dSEinar Lueck struct qeth_qdio_q *cq = card->qdio.c_q; 35090da9581dSEinar Lueck int i; 35100da9581dSEinar Lueck int rc; 35110da9581dSEinar Lueck 35120da9581dSEinar Lueck if (!qeth_is_cq(card, queue)) 35134326b5b4SJulian Wiedmann return; 35140da9581dSEinar Lueck 35150da9581dSEinar Lueck QETH_CARD_TEXT_(card, 5, "qcqhe%d", first_element); 35160da9581dSEinar Lueck QETH_CARD_TEXT_(card, 5, "qcqhc%d", count); 35170da9581dSEinar Lueck QETH_CARD_TEXT_(card, 5, "qcqherr%d", qdio_err); 35180da9581dSEinar Lueck 35190da9581dSEinar Lueck if (qdio_err) { 35200da9581dSEinar Lueck netif_stop_queue(card->dev); 35210da9581dSEinar Lueck qeth_schedule_recovery(card); 35224326b5b4SJulian Wiedmann return; 35230da9581dSEinar Lueck } 35240da9581dSEinar Lueck 35250da9581dSEinar Lueck for (i = first_element; i < first_element + count; ++i) { 35260da9581dSEinar Lueck int bidx = i % QDIO_MAX_BUFFERS_PER_Q; 35276d284bdeSSebastian Ott struct qdio_buffer *buffer = cq->qdio_bufs[bidx]; 35283b346c18SJulian Wiedmann int e = 0; 35290da9581dSEinar Lueck 3530903e4853SUrsula Braun while ((e < QDIO_MAX_ELEMENTS_PER_BUFFER) && 3531903e4853SUrsula Braun buffer->element[e].addr) { 35320da9581dSEinar Lueck unsigned long phys_aob_addr; 35330da9581dSEinar Lueck 35340da9581dSEinar Lueck phys_aob_addr = (unsigned long) buffer->element[e].addr; 35350da9581dSEinar Lueck qeth_qdio_handle_aob(card, phys_aob_addr); 35360da9581dSEinar Lueck ++e; 35370da9581dSEinar Lueck } 35383b346c18SJulian Wiedmann qeth_scrub_qdio_buffer(buffer, QDIO_MAX_ELEMENTS_PER_BUFFER); 35390da9581dSEinar Lueck } 35400da9581dSEinar Lueck rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, queue, 35410da9581dSEinar Lueck card->qdio.c_q->next_buf_to_init, 35420da9581dSEinar Lueck count); 35430da9581dSEinar Lueck if (rc) { 35440da9581dSEinar Lueck dev_warn(&card->gdev->dev, 35450da9581dSEinar Lueck "QDIO reported an error, rc=%i\n", rc); 35460da9581dSEinar Lueck QETH_CARD_TEXT(card, 2, "qcqherr"); 35470da9581dSEinar Lueck } 35480da9581dSEinar Lueck card->qdio.c_q->next_buf_to_init = (card->qdio.c_q->next_buf_to_init 35490da9581dSEinar Lueck + count) % QDIO_MAX_BUFFERS_PER_Q; 35500da9581dSEinar Lueck } 35510da9581dSEinar Lueck 35527bcd64ebSJulian Wiedmann static void qeth_qdio_input_handler(struct ccw_device *ccwdev, 35537bcd64ebSJulian Wiedmann unsigned int qdio_err, int queue, 35547bcd64ebSJulian Wiedmann int first_elem, int count, 3555a1c3ed4cSFrank Blaschka unsigned long card_ptr) 3556a1c3ed4cSFrank Blaschka { 3557a1c3ed4cSFrank Blaschka struct qeth_card *card = (struct qeth_card *)card_ptr; 3558a1c3ed4cSFrank Blaschka 35590da9581dSEinar Lueck QETH_CARD_TEXT_(card, 2, "qihq%d", queue); 35600da9581dSEinar Lueck QETH_CARD_TEXT_(card, 2, "qiec%d", qdio_err); 35610da9581dSEinar Lueck 35620da9581dSEinar Lueck if (qeth_is_cq(card, queue)) 35630da9581dSEinar Lueck qeth_qdio_cq_handler(card, qdio_err, queue, first_elem, count); 35640da9581dSEinar Lueck else if (qdio_err) 3565a1c3ed4cSFrank Blaschka qeth_schedule_recovery(card); 3566a1c3ed4cSFrank Blaschka } 3567a1c3ed4cSFrank Blaschka 35687bcd64ebSJulian Wiedmann static void qeth_qdio_output_handler(struct ccw_device *ccwdev, 35697bcd64ebSJulian Wiedmann unsigned int qdio_error, int __queue, 35707bcd64ebSJulian Wiedmann int first_element, int count, 35717bcd64ebSJulian Wiedmann unsigned long card_ptr) 35724a71df50SFrank Blaschka { 35734a71df50SFrank Blaschka struct qeth_card *card = (struct qeth_card *) card_ptr; 35744a71df50SFrank Blaschka struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue]; 35754a71df50SFrank Blaschka struct qeth_qdio_out_buffer *buffer; 35764a71df50SFrank Blaschka int i; 35774a71df50SFrank Blaschka 3578847a50fdSCarsten Otte QETH_CARD_TEXT(card, 6, "qdouhdl"); 35791549d13fSJan Glauber if (qdio_error & QDIO_ERROR_FATAL) { 3580847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "achkcond"); 35814a71df50SFrank Blaschka netif_stop_queue(card->dev); 35824a71df50SFrank Blaschka qeth_schedule_recovery(card); 35834a71df50SFrank Blaschka return; 35844a71df50SFrank Blaschka } 35854326b5b4SJulian Wiedmann 35864a71df50SFrank Blaschka for (i = first_element; i < (first_element + count); ++i) { 35870da9581dSEinar Lueck int bidx = i % QDIO_MAX_BUFFERS_PER_Q; 35880da9581dSEinar Lueck buffer = queue->bufs[bidx]; 3589b67d801fSUrsula Braun qeth_handle_send_error(card, buffer, qdio_error); 35900da9581dSEinar Lueck 35910da9581dSEinar Lueck if (queue->bufstates && 35920da9581dSEinar Lueck (queue->bufstates[bidx].flags & 35930da9581dSEinar Lueck QDIO_OUTBUF_STATE_FLAG_PENDING) != 0) { 359418af5c17SStefan Raspl WARN_ON_ONCE(card->options.cq != QETH_CQ_ENABLED); 3595b3332930SFrank Blaschka 3596b3332930SFrank Blaschka if (atomic_cmpxchg(&buffer->state, 3597b3332930SFrank Blaschka QETH_QDIO_BUF_PRIMED, 3598b3332930SFrank Blaschka QETH_QDIO_BUF_PENDING) == 3599b3332930SFrank Blaschka QETH_QDIO_BUF_PRIMED) { 3600b3332930SFrank Blaschka qeth_notify_skbs(queue, buffer, 3601b3332930SFrank Blaschka TX_NOTIFY_PENDING); 3602b3332930SFrank Blaschka } 36030da9581dSEinar Lueck QETH_CARD_TEXT_(queue->card, 5, "pel%d", bidx); 3604ce28867fSJulian Wiedmann 3605ce28867fSJulian Wiedmann /* prepare the queue slot for re-use: */ 3606ce28867fSJulian Wiedmann qeth_scrub_qdio_buffer(buffer->buffer, 3607ce28867fSJulian Wiedmann QETH_MAX_BUFFER_ELEMENTS(card)); 3608b3332930SFrank Blaschka if (qeth_init_qdio_out_buf(queue, bidx)) { 3609b3332930SFrank Blaschka QETH_CARD_TEXT(card, 2, "outofbuf"); 36100da9581dSEinar Lueck qeth_schedule_recovery(card); 3611b3332930SFrank Blaschka } 36120da9581dSEinar Lueck } else { 3613b3332930SFrank Blaschka if (card->options.cq == QETH_CQ_ENABLED) { 3614b3332930SFrank Blaschka enum iucv_tx_notify n; 3615b3332930SFrank Blaschka 3616b3332930SFrank Blaschka n = qeth_compute_cq_notification( 3617b3332930SFrank Blaschka buffer->buffer->element[15].sflags, 0); 3618b3332930SFrank Blaschka qeth_notify_skbs(queue, buffer, n); 3619b3332930SFrank Blaschka } 3620b3332930SFrank Blaschka 36213b346c18SJulian Wiedmann qeth_clear_output_buffer(queue, buffer); 36220da9581dSEinar Lueck } 36230da9581dSEinar Lueck qeth_cleanup_handled_pending(queue, bidx, 0); 36244a71df50SFrank Blaschka } 36254a71df50SFrank Blaschka atomic_sub(count, &queue->used_buffers); 36264a71df50SFrank Blaschka /* check if we need to do something on this outbound queue */ 36274a71df50SFrank Blaschka if (card->info.type != QETH_CARD_TYPE_IQD) 36284a71df50SFrank Blaschka qeth_check_outbound_queue(queue); 36294a71df50SFrank Blaschka 36304a71df50SFrank Blaschka netif_wake_queue(queue->card->dev); 36314a71df50SFrank Blaschka } 36324a71df50SFrank Blaschka 363370deb016SHans Wippel /* We cannot use outbound queue 3 for unicast packets on HiperSockets */ 363470deb016SHans Wippel static inline int qeth_cut_iqd_prio(struct qeth_card *card, int queue_num) 363570deb016SHans Wippel { 363670deb016SHans Wippel if ((card->info.type == QETH_CARD_TYPE_IQD) && (queue_num == 3)) 363770deb016SHans Wippel return 2; 363870deb016SHans Wippel return queue_num; 363970deb016SHans Wippel } 364070deb016SHans Wippel 3641290b8348SStefan Raspl /** 3642290b8348SStefan Raspl * Note: Function assumes that we have 4 outbound queues. 3643290b8348SStefan Raspl */ 36444a71df50SFrank Blaschka int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb, 364586c0cdb9SJulian Wiedmann int ipv) 36464a71df50SFrank Blaschka { 3647d66cb37eSStefan Raspl __be16 *tci; 3648290b8348SStefan Raspl u8 tos; 3649290b8348SStefan Raspl 3650290b8348SStefan Raspl switch (card->qdio.do_prio_queueing) { 3651290b8348SStefan Raspl case QETH_PRIO_Q_ING_TOS: 3652290b8348SStefan Raspl case QETH_PRIO_Q_ING_PREC: 3653290b8348SStefan Raspl switch (ipv) { 3654290b8348SStefan Raspl case 4: 3655290b8348SStefan Raspl tos = ipv4_get_dsfield(ip_hdr(skb)); 3656290b8348SStefan Raspl break; 3657290b8348SStefan Raspl case 6: 3658290b8348SStefan Raspl tos = ipv6_get_dsfield(ipv6_hdr(skb)); 3659290b8348SStefan Raspl break; 36604a71df50SFrank Blaschka default: 36614a71df50SFrank Blaschka return card->qdio.default_out_queue; 36624a71df50SFrank Blaschka } 3663290b8348SStefan Raspl if (card->qdio.do_prio_queueing == QETH_PRIO_Q_ING_PREC) 366470deb016SHans Wippel return qeth_cut_iqd_prio(card, ~tos >> 6 & 3); 3665290b8348SStefan Raspl if (tos & IPTOS_MINCOST) 366670deb016SHans Wippel return qeth_cut_iqd_prio(card, 3); 3667290b8348SStefan Raspl if (tos & IPTOS_RELIABILITY) 3668290b8348SStefan Raspl return 2; 3669290b8348SStefan Raspl if (tos & IPTOS_THROUGHPUT) 3670290b8348SStefan Raspl return 1; 3671290b8348SStefan Raspl if (tos & IPTOS_LOWDELAY) 3672290b8348SStefan Raspl return 0; 3673d66cb37eSStefan Raspl break; 3674d66cb37eSStefan Raspl case QETH_PRIO_Q_ING_SKB: 3675d66cb37eSStefan Raspl if (skb->priority > 5) 3676d66cb37eSStefan Raspl return 0; 367770deb016SHans Wippel return qeth_cut_iqd_prio(card, ~skb->priority >> 1 & 3); 3678d66cb37eSStefan Raspl case QETH_PRIO_Q_ING_VLAN: 3679d66cb37eSStefan Raspl tci = &((struct ethhdr *)skb->data)->h_proto; 36806bee4e26SHans Wippel if (be16_to_cpu(*tci) == ETH_P_8021Q) 36816bee4e26SHans Wippel return qeth_cut_iqd_prio(card, 36826bee4e26SHans Wippel ~be16_to_cpu(*(tci + 1)) >> (VLAN_PRIO_SHIFT + 1) & 3); 3683d66cb37eSStefan Raspl break; 3684290b8348SStefan Raspl default: 3685290b8348SStefan Raspl break; 3686290b8348SStefan Raspl } 3687290b8348SStefan Raspl return card->qdio.default_out_queue; 36884a71df50SFrank Blaschka } 36894a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_get_priority_queue); 36904a71df50SFrank Blaschka 36912863c613SEugene Crosser /** 36922863c613SEugene Crosser * qeth_get_elements_for_frags() - find number of SBALEs for skb frags. 36932863c613SEugene Crosser * @skb: SKB address 36942863c613SEugene Crosser * 36952863c613SEugene Crosser * Returns the number of pages, and thus QDIO buffer elements, needed to cover 36962863c613SEugene Crosser * fragmented part of the SKB. Returns zero for linear SKB. 36972863c613SEugene Crosser */ 3698356156b6SJulian Wiedmann static int qeth_get_elements_for_frags(struct sk_buff *skb) 3699271648b4SFrank Blaschka { 37002863c613SEugene Crosser int cnt, elements = 0; 3701271648b4SFrank Blaschka 3702271648b4SFrank Blaschka for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) { 37032863c613SEugene Crosser struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[cnt]; 37042863c613SEugene Crosser 37052863c613SEugene Crosser elements += qeth_get_elements_for_range( 37062863c613SEugene Crosser (addr_t)skb_frag_address(frag), 37072863c613SEugene Crosser (addr_t)skb_frag_address(frag) + skb_frag_size(frag)); 3708271648b4SFrank Blaschka } 3709271648b4SFrank Blaschka return elements; 3710271648b4SFrank Blaschka } 3711271648b4SFrank Blaschka 371240e6a225SJulian Wiedmann /** 371340e6a225SJulian Wiedmann * qeth_count_elements() - Counts the number of QDIO buffer elements needed 371440e6a225SJulian Wiedmann * to transmit an skb. 371540e6a225SJulian Wiedmann * @skb: the skb to operate on. 371640e6a225SJulian Wiedmann * @data_offset: skip this part of the skb's linear data 371740e6a225SJulian Wiedmann * 371840e6a225SJulian Wiedmann * Returns the number of pages, and thus QDIO buffer elements, needed to map the 371940e6a225SJulian Wiedmann * skb's data (both its linear part and paged fragments). 372040e6a225SJulian Wiedmann */ 372140e6a225SJulian Wiedmann unsigned int qeth_count_elements(struct sk_buff *skb, unsigned int data_offset) 3722ba86ceeeSJulian Wiedmann { 3723ba86ceeeSJulian Wiedmann unsigned int elements = qeth_get_elements_for_frags(skb); 3724ba86ceeeSJulian Wiedmann addr_t end = (addr_t)skb->data + skb_headlen(skb); 3725ba86ceeeSJulian Wiedmann addr_t start = (addr_t)skb->data + data_offset; 3726ba86ceeeSJulian Wiedmann 3727ba86ceeeSJulian Wiedmann if (start != end) 3728ba86ceeeSJulian Wiedmann elements += qeth_get_elements_for_range(start, end); 3729ba86ceeeSJulian Wiedmann return elements; 3730ba86ceeeSJulian Wiedmann } 373140e6a225SJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_count_elements); 37324a71df50SFrank Blaschka 3733e517b649SJulian Wiedmann #define QETH_HDR_CACHE_OBJ_SIZE (sizeof(struct qeth_hdr_tso) + \ 3734e517b649SJulian Wiedmann MAX_TCP_HEADER) 373555494264SJulian Wiedmann 37360d6f02d3SJulian Wiedmann /** 3737ba86ceeeSJulian Wiedmann * qeth_add_hw_header() - add a HW header to an skb. 3738ba86ceeeSJulian Wiedmann * @skb: skb that the HW header should be added to. 37390d6f02d3SJulian Wiedmann * @hdr: double pointer to a qeth_hdr. When returning with >= 0, 37400d6f02d3SJulian Wiedmann * it contains a valid pointer to a qeth_hdr. 3741a7c2f4a3SJulian Wiedmann * @hdr_len: length of the HW header. 3742a7c2f4a3SJulian Wiedmann * @proto_len: length of protocol headers that need to be in same page as the 3743a7c2f4a3SJulian Wiedmann * HW header. 37440d6f02d3SJulian Wiedmann * 37450d6f02d3SJulian Wiedmann * Returns the pushed length. If the header can't be pushed on 37460d6f02d3SJulian Wiedmann * (eg. because it would cross a page boundary), it is allocated from 37470d6f02d3SJulian Wiedmann * the cache instead and 0 is returned. 3748ba86ceeeSJulian Wiedmann * The number of needed buffer elements is returned in @elements. 37490d6f02d3SJulian Wiedmann * Error to create the hdr is indicated by returning with < 0. 37500d6f02d3SJulian Wiedmann */ 375181ec5439SJulian Wiedmann static int qeth_add_hw_header(struct qeth_card *card, struct sk_buff *skb, 3752a7c2f4a3SJulian Wiedmann struct qeth_hdr **hdr, unsigned int hdr_len, 3753a7c2f4a3SJulian Wiedmann unsigned int proto_len, unsigned int *elements) 37540d6f02d3SJulian Wiedmann { 3755ba86ceeeSJulian Wiedmann const unsigned int max_elements = QETH_MAX_BUFFER_ELEMENTS(card); 3756a7c2f4a3SJulian Wiedmann const unsigned int contiguous = proto_len ? proto_len : 1; 3757ba86ceeeSJulian Wiedmann unsigned int __elements; 3758ba86ceeeSJulian Wiedmann addr_t start, end; 3759ba86ceeeSJulian Wiedmann bool push_ok; 3760ba86ceeeSJulian Wiedmann int rc; 3761ba86ceeeSJulian Wiedmann 3762ba86ceeeSJulian Wiedmann check_layout: 3763a7c2f4a3SJulian Wiedmann start = (addr_t)skb->data - hdr_len; 3764ba86ceeeSJulian Wiedmann end = (addr_t)skb->data; 3765ba86ceeeSJulian Wiedmann 3766a7c2f4a3SJulian Wiedmann if (qeth_get_elements_for_range(start, end + contiguous) == 1) { 3767ba86ceeeSJulian Wiedmann /* Push HW header into same page as first protocol header. */ 3768ba86ceeeSJulian Wiedmann push_ok = true; 3769e517b649SJulian Wiedmann /* ... but TSO always needs a separate element for headers: */ 3770e517b649SJulian Wiedmann if (skb_is_gso(skb)) 3771e517b649SJulian Wiedmann __elements = 1 + qeth_count_elements(skb, proto_len); 3772e517b649SJulian Wiedmann else 3773ba86ceeeSJulian Wiedmann __elements = qeth_count_elements(skb, 0); 3774a7c2f4a3SJulian Wiedmann } else if (!proto_len && qeth_get_elements_for_range(start, end) == 1) { 3775ba86ceeeSJulian Wiedmann /* Push HW header into a new page. */ 3776ba86ceeeSJulian Wiedmann push_ok = true; 3777a7c2f4a3SJulian Wiedmann __elements = 1 + qeth_count_elements(skb, 0); 3778a7c2f4a3SJulian Wiedmann } else { 3779a7c2f4a3SJulian Wiedmann /* Use header cache, copy protocol headers up. */ 3780ba86ceeeSJulian Wiedmann push_ok = false; 3781a7c2f4a3SJulian Wiedmann __elements = 1 + qeth_count_elements(skb, proto_len); 3782ba86ceeeSJulian Wiedmann } 3783ba86ceeeSJulian Wiedmann 3784ba86ceeeSJulian Wiedmann /* Compress skb to fit into one IO buffer: */ 3785ba86ceeeSJulian Wiedmann if (__elements > max_elements) { 3786ba86ceeeSJulian Wiedmann if (!skb_is_nonlinear(skb)) { 3787ba86ceeeSJulian Wiedmann /* Drop it, no easy way of shrinking it further. */ 3788ba86ceeeSJulian Wiedmann QETH_DBF_MESSAGE(2, "Dropped an oversized skb (Max Elements=%u / Actual=%u / Length=%u).\n", 3789ba86ceeeSJulian Wiedmann max_elements, __elements, skb->len); 3790ba86ceeeSJulian Wiedmann return -E2BIG; 3791ba86ceeeSJulian Wiedmann } 3792ba86ceeeSJulian Wiedmann 3793ba86ceeeSJulian Wiedmann rc = skb_linearize(skb); 3794ba86ceeeSJulian Wiedmann if (card->options.performance_stats) { 3795ba86ceeeSJulian Wiedmann if (rc) 3796ba86ceeeSJulian Wiedmann card->perf_stats.tx_linfail++; 3797ba86ceeeSJulian Wiedmann else 3798ba86ceeeSJulian Wiedmann card->perf_stats.tx_lin++; 3799ba86ceeeSJulian Wiedmann } 3800ba86ceeeSJulian Wiedmann if (rc) 3801ba86ceeeSJulian Wiedmann return rc; 3802ba86ceeeSJulian Wiedmann 3803ba86ceeeSJulian Wiedmann /* Linearization changed the layout, re-evaluate: */ 3804ba86ceeeSJulian Wiedmann goto check_layout; 3805ba86ceeeSJulian Wiedmann } 3806ba86ceeeSJulian Wiedmann 3807ba86ceeeSJulian Wiedmann *elements = __elements; 3808ba86ceeeSJulian Wiedmann /* Add the header: */ 3809ba86ceeeSJulian Wiedmann if (push_ok) { 3810a7c2f4a3SJulian Wiedmann *hdr = skb_push(skb, hdr_len); 3811a7c2f4a3SJulian Wiedmann return hdr_len; 38120d6f02d3SJulian Wiedmann } 38130d6f02d3SJulian Wiedmann /* fall back */ 381455494264SJulian Wiedmann if (hdr_len + proto_len > QETH_HDR_CACHE_OBJ_SIZE) 381555494264SJulian Wiedmann return -E2BIG; 38160d6f02d3SJulian Wiedmann *hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC); 38170d6f02d3SJulian Wiedmann if (!*hdr) 38180d6f02d3SJulian Wiedmann return -ENOMEM; 3819a7c2f4a3SJulian Wiedmann /* Copy protocol headers behind HW header: */ 3820a7c2f4a3SJulian Wiedmann skb_copy_from_linear_data(skb, ((char *)*hdr) + hdr_len, proto_len); 38210d6f02d3SJulian Wiedmann return 0; 38220d6f02d3SJulian Wiedmann } 38230d6f02d3SJulian Wiedmann 3824cef6ff22SJulian Wiedmann static void __qeth_fill_buffer(struct sk_buff *skb, 3825384d2ef1SJulian Wiedmann struct qeth_qdio_out_buffer *buf, 3826cc309f83SJulian Wiedmann bool is_first_elem, unsigned int offset) 38274a71df50SFrank Blaschka { 3828384d2ef1SJulian Wiedmann struct qdio_buffer *buffer = buf->buffer; 3829384d2ef1SJulian Wiedmann int element = buf->next_element_to_fill; 3830cc309f83SJulian Wiedmann int length = skb_headlen(skb) - offset; 3831cc309f83SJulian Wiedmann char *data = skb->data + offset; 3832384d2ef1SJulian Wiedmann int length_here, cnt; 38334a71df50SFrank Blaschka 3834cc309f83SJulian Wiedmann /* map linear part into buffer element(s) */ 38354a71df50SFrank Blaschka while (length > 0) { 38364a71df50SFrank Blaschka /* length_here is the remaining amount of data in this page */ 38374a71df50SFrank Blaschka length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE); 38384a71df50SFrank Blaschka if (length < length_here) 38394a71df50SFrank Blaschka length_here = length; 38404a71df50SFrank Blaschka 38414a71df50SFrank Blaschka buffer->element[element].addr = data; 38424a71df50SFrank Blaschka buffer->element[element].length = length_here; 38434a71df50SFrank Blaschka length -= length_here; 3844384d2ef1SJulian Wiedmann if (is_first_elem) { 3845384d2ef1SJulian Wiedmann is_first_elem = false; 38465258830bSJulian Wiedmann if (length || skb_is_nonlinear(skb)) 38475258830bSJulian Wiedmann /* skb needs additional elements */ 38483ec90878SJan Glauber buffer->element[element].eflags = 38493ec90878SJan Glauber SBAL_EFLAGS_FIRST_FRAG; 385051aa165cSFrank Blaschka else 38513ec90878SJan Glauber buffer->element[element].eflags = 0; 38524a71df50SFrank Blaschka } else { 38533ec90878SJan Glauber buffer->element[element].eflags = 38543ec90878SJan Glauber SBAL_EFLAGS_MIDDLE_FRAG; 38554a71df50SFrank Blaschka } 38564a71df50SFrank Blaschka data += length_here; 38574a71df50SFrank Blaschka element++; 38584a71df50SFrank Blaschka } 385951aa165cSFrank Blaschka 3860cc309f83SJulian Wiedmann /* map page frags into buffer element(s) */ 386151aa165cSFrank Blaschka for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) { 3862f8eb4930SJulian Wiedmann skb_frag_t *frag = &skb_shinfo(skb)->frags[cnt]; 3863f8eb4930SJulian Wiedmann 3864f8eb4930SJulian Wiedmann data = skb_frag_address(frag); 3865f8eb4930SJulian Wiedmann length = skb_frag_size(frag); 3866271648b4SFrank Blaschka while (length > 0) { 3867271648b4SFrank Blaschka length_here = PAGE_SIZE - 3868271648b4SFrank Blaschka ((unsigned long) data % PAGE_SIZE); 3869271648b4SFrank Blaschka if (length < length_here) 3870271648b4SFrank Blaschka length_here = length; 3871271648b4SFrank Blaschka 3872271648b4SFrank Blaschka buffer->element[element].addr = data; 3873271648b4SFrank Blaschka buffer->element[element].length = length_here; 3874271648b4SFrank Blaschka buffer->element[element].eflags = 3875271648b4SFrank Blaschka SBAL_EFLAGS_MIDDLE_FRAG; 3876271648b4SFrank Blaschka length -= length_here; 3877271648b4SFrank Blaschka data += length_here; 387851aa165cSFrank Blaschka element++; 387951aa165cSFrank Blaschka } 3880271648b4SFrank Blaschka } 388151aa165cSFrank Blaschka 38823ec90878SJan Glauber if (buffer->element[element - 1].eflags) 38833ec90878SJan Glauber buffer->element[element - 1].eflags = SBAL_EFLAGS_LAST_FRAG; 3884384d2ef1SJulian Wiedmann buf->next_element_to_fill = element; 38854a71df50SFrank Blaschka } 38864a71df50SFrank Blaschka 3887eaf3cc08SJulian Wiedmann /** 3888eaf3cc08SJulian Wiedmann * qeth_fill_buffer() - map skb into an output buffer 3889eaf3cc08SJulian Wiedmann * @queue: QDIO queue to submit the buffer on 3890eaf3cc08SJulian Wiedmann * @buf: buffer to transport the skb 3891eaf3cc08SJulian Wiedmann * @skb: skb to map into the buffer 3892eaf3cc08SJulian Wiedmann * @hdr: qeth_hdr for this skb. Either at skb->data, or allocated 3893eaf3cc08SJulian Wiedmann * from qeth_core_header_cache. 3894eaf3cc08SJulian Wiedmann * @offset: when mapping the skb, start at skb->data + offset 3895eaf3cc08SJulian Wiedmann * @hd_len: if > 0, build a dedicated header element of this size 3896eaf3cc08SJulian Wiedmann */ 3897cef6ff22SJulian Wiedmann static int qeth_fill_buffer(struct qeth_qdio_out_q *queue, 3898cc309f83SJulian Wiedmann struct qeth_qdio_out_buffer *buf, 3899cc309f83SJulian Wiedmann struct sk_buff *skb, struct qeth_hdr *hdr, 390013ddacb5SJulian Wiedmann unsigned int offset, unsigned int hd_len) 39014a71df50SFrank Blaschka { 3902eaf3cc08SJulian Wiedmann struct qdio_buffer *buffer = buf->buffer; 3903384d2ef1SJulian Wiedmann bool is_first_elem = true; 39044a71df50SFrank Blaschka 3905dc149e37SJulian Wiedmann __skb_queue_tail(&buf->skb_list, skb); 39064a71df50SFrank Blaschka 3907eaf3cc08SJulian Wiedmann /* build dedicated header element */ 3908eaf3cc08SJulian Wiedmann if (hd_len) { 3909683d718aSFrank Blaschka int element = buf->next_element_to_fill; 3910384d2ef1SJulian Wiedmann is_first_elem = false; 3911384d2ef1SJulian Wiedmann 3912683d718aSFrank Blaschka buffer->element[element].addr = hdr; 3913f1588177SJulian Wiedmann buffer->element[element].length = hd_len; 39143ec90878SJan Glauber buffer->element[element].eflags = SBAL_EFLAGS_FIRST_FRAG; 3915eaf3cc08SJulian Wiedmann /* remember to free cache-allocated qeth_hdr: */ 3916eaf3cc08SJulian Wiedmann buf->is_header[element] = ((void *)hdr != skb->data); 3917683d718aSFrank Blaschka buf->next_element_to_fill++; 3918683d718aSFrank Blaschka } 3919683d718aSFrank Blaschka 3920384d2ef1SJulian Wiedmann __qeth_fill_buffer(skb, buf, is_first_elem, offset); 39214a71df50SFrank Blaschka 39224a71df50SFrank Blaschka if (!queue->do_pack) { 3923847a50fdSCarsten Otte QETH_CARD_TEXT(queue->card, 6, "fillbfnp"); 39244a71df50SFrank Blaschka } else { 3925847a50fdSCarsten Otte QETH_CARD_TEXT(queue->card, 6, "fillbfpa"); 39264a71df50SFrank Blaschka if (queue->card->options.performance_stats) 39274a71df50SFrank Blaschka queue->card->perf_stats.skbs_sent_pack++; 3928f72b4644SJulian Wiedmann 3929f72b4644SJulian Wiedmann /* If the buffer still has free elements, keep using it. */ 3930f72b4644SJulian Wiedmann if (buf->next_element_to_fill < 3931f72b4644SJulian Wiedmann QETH_MAX_BUFFER_ELEMENTS(queue->card)) 3932f72b4644SJulian Wiedmann return 0; 3933f72b4644SJulian Wiedmann } 3934f72b4644SJulian Wiedmann 3935f72b4644SJulian Wiedmann /* flush out the buffer */ 39364a71df50SFrank Blaschka atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); 3937f72b4644SJulian Wiedmann queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) % 3938f72b4644SJulian Wiedmann QDIO_MAX_BUFFERS_PER_Q; 3939f72b4644SJulian Wiedmann return 1; 39404a71df50SFrank Blaschka } 39414a71df50SFrank Blaschka 394281ec5439SJulian Wiedmann static int qeth_do_send_packet_fast(struct qeth_qdio_out_q *queue, 394381ec5439SJulian Wiedmann struct sk_buff *skb, struct qeth_hdr *hdr, 394481ec5439SJulian Wiedmann unsigned int offset, unsigned int hd_len) 39454a71df50SFrank Blaschka { 39467c2e9ba3SJulian Wiedmann int index = queue->next_buf_to_fill; 39477c2e9ba3SJulian Wiedmann struct qeth_qdio_out_buffer *buffer = queue->bufs[index]; 39484a71df50SFrank Blaschka 39494a71df50SFrank Blaschka /* 39504a71df50SFrank Blaschka * check if buffer is empty to make sure that we do not 'overtake' 39514a71df50SFrank Blaschka * ourselves and try to fill a buffer that is already primed 39524a71df50SFrank Blaschka */ 39534a71df50SFrank Blaschka if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) 39547c2e9ba3SJulian Wiedmann return -EBUSY; 3955683d718aSFrank Blaschka qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len); 3956779e6e1cSJan Glauber qeth_flush_buffers(queue, index, 1); 39574a71df50SFrank Blaschka return 0; 39584a71df50SFrank Blaschka } 39594a71df50SFrank Blaschka 39604a71df50SFrank Blaschka int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, 39614a71df50SFrank Blaschka struct sk_buff *skb, struct qeth_hdr *hdr, 39629c3bfda9SJulian Wiedmann unsigned int offset, unsigned int hd_len, 39639c3bfda9SJulian Wiedmann int elements_needed) 39644a71df50SFrank Blaschka { 39654a71df50SFrank Blaschka struct qeth_qdio_out_buffer *buffer; 39664a71df50SFrank Blaschka int start_index; 39674a71df50SFrank Blaschka int flush_count = 0; 39684a71df50SFrank Blaschka int do_pack = 0; 39694a71df50SFrank Blaschka int tmp; 39704a71df50SFrank Blaschka int rc = 0; 39714a71df50SFrank Blaschka 39724a71df50SFrank Blaschka /* spin until we get the queue ... */ 39734a71df50SFrank Blaschka while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED, 39744a71df50SFrank Blaschka QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED); 39754a71df50SFrank Blaschka start_index = queue->next_buf_to_fill; 39760da9581dSEinar Lueck buffer = queue->bufs[queue->next_buf_to_fill]; 39774a71df50SFrank Blaschka /* 39784a71df50SFrank Blaschka * check if buffer is empty to make sure that we do not 'overtake' 39794a71df50SFrank Blaschka * ourselves and try to fill a buffer that is already primed 39804a71df50SFrank Blaschka */ 39814a71df50SFrank Blaschka if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) { 39824a71df50SFrank Blaschka atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); 39834a71df50SFrank Blaschka return -EBUSY; 39844a71df50SFrank Blaschka } 39854a71df50SFrank Blaschka /* check if we need to switch packing state of this queue */ 39864a71df50SFrank Blaschka qeth_switch_to_packing_if_needed(queue); 39874a71df50SFrank Blaschka if (queue->do_pack) { 39884a71df50SFrank Blaschka do_pack = 1; 39894a71df50SFrank Blaschka /* does packet fit in current buffer? */ 39904a71df50SFrank Blaschka if ((QETH_MAX_BUFFER_ELEMENTS(card) - 39914a71df50SFrank Blaschka buffer->next_element_to_fill) < elements_needed) { 39924a71df50SFrank Blaschka /* ... no -> set state PRIMED */ 399364ef8957SFrank Blaschka atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); 39944a71df50SFrank Blaschka flush_count++; 39954a71df50SFrank Blaschka queue->next_buf_to_fill = 39964a71df50SFrank Blaschka (queue->next_buf_to_fill + 1) % 39974a71df50SFrank Blaschka QDIO_MAX_BUFFERS_PER_Q; 39980da9581dSEinar Lueck buffer = queue->bufs[queue->next_buf_to_fill]; 39994a71df50SFrank Blaschka /* we did a step forward, so check buffer state 40004a71df50SFrank Blaschka * again */ 40014a71df50SFrank Blaschka if (atomic_read(&buffer->state) != 40024a71df50SFrank Blaschka QETH_QDIO_BUF_EMPTY) { 4003779e6e1cSJan Glauber qeth_flush_buffers(queue, start_index, 4004779e6e1cSJan Glauber flush_count); 40054a71df50SFrank Blaschka atomic_set(&queue->state, 40064a71df50SFrank Blaschka QETH_OUT_Q_UNLOCKED); 40073cdc8a25SJulian Wiedmann rc = -EBUSY; 40083cdc8a25SJulian Wiedmann goto out; 40094a71df50SFrank Blaschka } 40104a71df50SFrank Blaschka } 40114a71df50SFrank Blaschka } 4012f72b4644SJulian Wiedmann 4013f72b4644SJulian Wiedmann flush_count += qeth_fill_buffer(queue, buffer, skb, hdr, offset, 4014f72b4644SJulian Wiedmann hd_len); 40154a71df50SFrank Blaschka if (flush_count) 4016779e6e1cSJan Glauber qeth_flush_buffers(queue, start_index, flush_count); 40174a71df50SFrank Blaschka else if (!atomic_read(&queue->set_pci_flags_count)) 40184a71df50SFrank Blaschka atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH); 40194a71df50SFrank Blaschka /* 40204a71df50SFrank Blaschka * queue->state will go from LOCKED -> UNLOCKED or from 40214a71df50SFrank Blaschka * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us 40224a71df50SFrank Blaschka * (switch packing state or flush buffer to get another pci flag out). 40234a71df50SFrank Blaschka * In that case we will enter this loop 40244a71df50SFrank Blaschka */ 40254a71df50SFrank Blaschka while (atomic_dec_return(&queue->state)) { 40264a71df50SFrank Blaschka start_index = queue->next_buf_to_fill; 40274a71df50SFrank Blaschka /* check if we can go back to non-packing state */ 40283cdc8a25SJulian Wiedmann tmp = qeth_switch_to_nonpacking_if_needed(queue); 40294a71df50SFrank Blaschka /* 40304a71df50SFrank Blaschka * check if we need to flush a packing buffer to get a pci 40314a71df50SFrank Blaschka * flag out on the queue 40324a71df50SFrank Blaschka */ 40333cdc8a25SJulian Wiedmann if (!tmp && !atomic_read(&queue->set_pci_flags_count)) 40343cdc8a25SJulian Wiedmann tmp = qeth_prep_flush_pack_buffer(queue); 40353cdc8a25SJulian Wiedmann if (tmp) { 40363cdc8a25SJulian Wiedmann qeth_flush_buffers(queue, start_index, tmp); 40373cdc8a25SJulian Wiedmann flush_count += tmp; 40384a71df50SFrank Blaschka } 40393cdc8a25SJulian Wiedmann } 40403cdc8a25SJulian Wiedmann out: 40414a71df50SFrank Blaschka /* at this point the queue is UNLOCKED again */ 40424a71df50SFrank Blaschka if (queue->card->options.performance_stats && do_pack) 40434a71df50SFrank Blaschka queue->card->perf_stats.bufs_sent_pack += flush_count; 40444a71df50SFrank Blaschka 40454a71df50SFrank Blaschka return rc; 40464a71df50SFrank Blaschka } 40474a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_do_send_packet); 40484a71df50SFrank Blaschka 404981ec5439SJulian Wiedmann static void qeth_fill_tso_ext(struct qeth_hdr_tso *hdr, 405081ec5439SJulian Wiedmann unsigned int payload_len, struct sk_buff *skb, 405181ec5439SJulian Wiedmann unsigned int proto_len) 405282bf5c08SJulian Wiedmann { 405382bf5c08SJulian Wiedmann struct qeth_hdr_ext_tso *ext = &hdr->ext; 405482bf5c08SJulian Wiedmann 405582bf5c08SJulian Wiedmann ext->hdr_tot_len = sizeof(*ext); 405682bf5c08SJulian Wiedmann ext->imb_hdr_no = 1; 405782bf5c08SJulian Wiedmann ext->hdr_type = 1; 405882bf5c08SJulian Wiedmann ext->hdr_version = 1; 405982bf5c08SJulian Wiedmann ext->hdr_len = 28; 406082bf5c08SJulian Wiedmann ext->payload_len = payload_len; 406182bf5c08SJulian Wiedmann ext->mss = skb_shinfo(skb)->gso_size; 406282bf5c08SJulian Wiedmann ext->dg_hdr_len = proto_len; 406382bf5c08SJulian Wiedmann } 406482bf5c08SJulian Wiedmann 4065fc69660bSJulian Wiedmann int qeth_xmit(struct qeth_card *card, struct sk_buff *skb, 4066fc69660bSJulian Wiedmann struct qeth_qdio_out_q *queue, int ipv, int cast_type, 4067fc69660bSJulian Wiedmann void (*fill_header)(struct qeth_card *card, struct qeth_hdr *hdr, 4068fc69660bSJulian Wiedmann struct sk_buff *skb, int ipv, int cast_type, 4069fc69660bSJulian Wiedmann unsigned int data_len)) 4070fc69660bSJulian Wiedmann { 407182bf5c08SJulian Wiedmann unsigned int proto_len, hw_hdr_len; 4072fc69660bSJulian Wiedmann unsigned int frame_len = skb->len; 407382bf5c08SJulian Wiedmann bool is_tso = skb_is_gso(skb); 4074fc69660bSJulian Wiedmann unsigned int data_offset = 0; 4075fc69660bSJulian Wiedmann struct qeth_hdr *hdr = NULL; 4076fc69660bSJulian Wiedmann unsigned int hd_len = 0; 4077fc69660bSJulian Wiedmann unsigned int elements; 4078fc69660bSJulian Wiedmann int push_len, rc; 4079fc69660bSJulian Wiedmann bool is_sg; 4080fc69660bSJulian Wiedmann 408182bf5c08SJulian Wiedmann if (is_tso) { 408282bf5c08SJulian Wiedmann hw_hdr_len = sizeof(struct qeth_hdr_tso); 408382bf5c08SJulian Wiedmann proto_len = skb_transport_offset(skb) + tcp_hdrlen(skb); 408482bf5c08SJulian Wiedmann } else { 408582bf5c08SJulian Wiedmann hw_hdr_len = sizeof(struct qeth_hdr); 408681ec5439SJulian Wiedmann proto_len = (IS_IQD(card) && IS_LAYER2(card)) ? ETH_HLEN : 0; 408782bf5c08SJulian Wiedmann } 408882bf5c08SJulian Wiedmann 4089fc69660bSJulian Wiedmann rc = skb_cow_head(skb, hw_hdr_len); 4090fc69660bSJulian Wiedmann if (rc) 4091fc69660bSJulian Wiedmann return rc; 4092fc69660bSJulian Wiedmann 4093fc69660bSJulian Wiedmann push_len = qeth_add_hw_header(card, skb, &hdr, hw_hdr_len, proto_len, 4094fc69660bSJulian Wiedmann &elements); 4095fc69660bSJulian Wiedmann if (push_len < 0) 4096fc69660bSJulian Wiedmann return push_len; 409782bf5c08SJulian Wiedmann if (is_tso || !push_len) { 4098fc69660bSJulian Wiedmann /* HW header needs its own buffer element. */ 4099fc69660bSJulian Wiedmann hd_len = hw_hdr_len + proto_len; 410082bf5c08SJulian Wiedmann data_offset = push_len + proto_len; 4101fc69660bSJulian Wiedmann } 4102e517b649SJulian Wiedmann memset(hdr, 0, hw_hdr_len); 4103fc69660bSJulian Wiedmann fill_header(card, hdr, skb, ipv, cast_type, frame_len); 410482bf5c08SJulian Wiedmann if (is_tso) 410582bf5c08SJulian Wiedmann qeth_fill_tso_ext((struct qeth_hdr_tso *) hdr, 410682bf5c08SJulian Wiedmann frame_len - proto_len, skb, proto_len); 4107fc69660bSJulian Wiedmann 4108fc69660bSJulian Wiedmann is_sg = skb_is_nonlinear(skb); 4109fc69660bSJulian Wiedmann if (IS_IQD(card)) { 4110fc69660bSJulian Wiedmann rc = qeth_do_send_packet_fast(queue, skb, hdr, data_offset, 4111fc69660bSJulian Wiedmann hd_len); 4112fc69660bSJulian Wiedmann } else { 4113fc69660bSJulian Wiedmann /* TODO: drop skb_orphan() once TX completion is fast enough */ 4114fc69660bSJulian Wiedmann skb_orphan(skb); 4115fc69660bSJulian Wiedmann rc = qeth_do_send_packet(card, queue, skb, hdr, data_offset, 4116fc69660bSJulian Wiedmann hd_len, elements); 4117fc69660bSJulian Wiedmann } 4118fc69660bSJulian Wiedmann 4119fc69660bSJulian Wiedmann if (!rc) { 4120fc69660bSJulian Wiedmann if (card->options.performance_stats) { 4121fc69660bSJulian Wiedmann card->perf_stats.buf_elements_sent += elements; 4122fc69660bSJulian Wiedmann if (is_sg) 4123fc69660bSJulian Wiedmann card->perf_stats.sg_skbs_sent++; 412482bf5c08SJulian Wiedmann if (is_tso) { 412582bf5c08SJulian Wiedmann card->perf_stats.large_send_bytes += frame_len; 412682bf5c08SJulian Wiedmann card->perf_stats.large_send_cnt++; 412782bf5c08SJulian Wiedmann } 4128fc69660bSJulian Wiedmann } 4129fc69660bSJulian Wiedmann } else { 4130fc69660bSJulian Wiedmann if (!push_len) 4131fc69660bSJulian Wiedmann kmem_cache_free(qeth_core_header_cache, hdr); 4132fc69660bSJulian Wiedmann if (rc == -EBUSY) 4133fc69660bSJulian Wiedmann /* roll back to ETH header */ 4134fc69660bSJulian Wiedmann skb_pull(skb, push_len); 4135fc69660bSJulian Wiedmann } 4136fc69660bSJulian Wiedmann return rc; 4137fc69660bSJulian Wiedmann } 4138fc69660bSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_xmit); 4139fc69660bSJulian Wiedmann 41404a71df50SFrank Blaschka static int qeth_setadp_promisc_mode_cb(struct qeth_card *card, 41414a71df50SFrank Blaschka struct qeth_reply *reply, unsigned long data) 41424a71df50SFrank Blaschka { 4143686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 41444a71df50SFrank Blaschka struct qeth_ipacmd_setadpparms *setparms; 41454a71df50SFrank Blaschka 4146847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "prmadpcb"); 41474a71df50SFrank Blaschka 41484a71df50SFrank Blaschka setparms = &(cmd->data.setadapterparms); 4149686c97eeSJulian Wiedmann if (qeth_setadpparms_inspect_rc(cmd)) { 41508a593148SThomas Richter QETH_CARD_TEXT_(card, 4, "prmrc%x", cmd->hdr.return_code); 41514a71df50SFrank Blaschka setparms->data.mode = SET_PROMISC_MODE_OFF; 41524a71df50SFrank Blaschka } 41534a71df50SFrank Blaschka card->info.promisc_mode = setparms->data.mode; 4154742d4d40SJulian Wiedmann return (cmd->hdr.return_code) ? -EIO : 0; 41554a71df50SFrank Blaschka } 41564a71df50SFrank Blaschka 41574a71df50SFrank Blaschka void qeth_setadp_promisc_mode(struct qeth_card *card) 41584a71df50SFrank Blaschka { 41594a71df50SFrank Blaschka enum qeth_ipa_promisc_modes mode; 41604a71df50SFrank Blaschka struct net_device *dev = card->dev; 41614a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 41624a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 41634a71df50SFrank Blaschka 4164847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "setprom"); 41654a71df50SFrank Blaschka 41664a71df50SFrank Blaschka if (((dev->flags & IFF_PROMISC) && 41674a71df50SFrank Blaschka (card->info.promisc_mode == SET_PROMISC_MODE_ON)) || 41684a71df50SFrank Blaschka (!(dev->flags & IFF_PROMISC) && 41694a71df50SFrank Blaschka (card->info.promisc_mode == SET_PROMISC_MODE_OFF))) 41704a71df50SFrank Blaschka return; 41714a71df50SFrank Blaschka mode = SET_PROMISC_MODE_OFF; 41724a71df50SFrank Blaschka if (dev->flags & IFF_PROMISC) 41734a71df50SFrank Blaschka mode = SET_PROMISC_MODE_ON; 4174847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 4, "mode:%x", mode); 41754a71df50SFrank Blaschka 41764a71df50SFrank Blaschka iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE, 4177ca5b20acSStefan Raspl sizeof(struct qeth_ipacmd_setadpparms_hdr) + 8); 41781aec42bcSThomas Richter if (!iob) 41791aec42bcSThomas Richter return; 4180ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 41814a71df50SFrank Blaschka cmd->data.setadapterparms.data.mode = mode; 41824a71df50SFrank Blaschka qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL); 41834a71df50SFrank Blaschka } 41844a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode); 41854a71df50SFrank Blaschka 41864a71df50SFrank Blaschka struct net_device_stats *qeth_get_stats(struct net_device *dev) 41874a71df50SFrank Blaschka { 41884a71df50SFrank Blaschka struct qeth_card *card; 41894a71df50SFrank Blaschka 4190509e2562SHeiko Carstens card = dev->ml_priv; 41914a71df50SFrank Blaschka 4192847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "getstat"); 41934a71df50SFrank Blaschka 41944a71df50SFrank Blaschka return &card->stats; 41954a71df50SFrank Blaschka } 41964a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_get_stats); 41974a71df50SFrank Blaschka 41984a71df50SFrank Blaschka static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card, 41994a71df50SFrank Blaschka struct qeth_reply *reply, unsigned long data) 42004a71df50SFrank Blaschka { 4201686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 4202b144b99fSJulian Wiedmann struct qeth_ipacmd_setadpparms *adp_cmd; 42034a71df50SFrank Blaschka 4204847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "chgmaccb"); 4205686c97eeSJulian Wiedmann if (qeth_setadpparms_inspect_rc(cmd)) 42064b7ae122SJulian Wiedmann return -EIO; 42074a71df50SFrank Blaschka 4208b144b99fSJulian Wiedmann adp_cmd = &cmd->data.setadapterparms; 42094b7ae122SJulian Wiedmann if (!is_valid_ether_addr(adp_cmd->data.change_addr.addr)) 42104b7ae122SJulian Wiedmann return -EADDRNOTAVAIL; 42114b7ae122SJulian Wiedmann 4212b144b99fSJulian Wiedmann if (IS_LAYER2(card) && IS_OSD(card) && !IS_VM_NIC(card) && 4213b144b99fSJulian Wiedmann !(adp_cmd->hdr.flags & QETH_SETADP_FLAGS_VIRTUAL_MAC)) 42144b7ae122SJulian Wiedmann return -EADDRNOTAVAIL; 4215b144b99fSJulian Wiedmann 4216b144b99fSJulian Wiedmann ether_addr_copy(card->dev->dev_addr, adp_cmd->data.change_addr.addr); 42174a71df50SFrank Blaschka return 0; 42184a71df50SFrank Blaschka } 42194a71df50SFrank Blaschka 42204a71df50SFrank Blaschka int qeth_setadpparms_change_macaddr(struct qeth_card *card) 42214a71df50SFrank Blaschka { 42224a71df50SFrank Blaschka int rc; 42234a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 42244a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 42254a71df50SFrank Blaschka 4226847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "chgmac"); 42274a71df50SFrank Blaschka 42284a71df50SFrank Blaschka iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS, 4229ca5b20acSStefan Raspl sizeof(struct qeth_ipacmd_setadpparms_hdr) + 4230ca5b20acSStefan Raspl sizeof(struct qeth_change_addr)); 42311aec42bcSThomas Richter if (!iob) 42321aec42bcSThomas Richter return -ENOMEM; 4233ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 42344a71df50SFrank Blaschka cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC; 423599f0b85dSJulian Wiedmann cmd->data.setadapterparms.data.change_addr.addr_size = ETH_ALEN; 423699f0b85dSJulian Wiedmann ether_addr_copy(cmd->data.setadapterparms.data.change_addr.addr, 423799f0b85dSJulian Wiedmann card->dev->dev_addr); 42384a71df50SFrank Blaschka rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb, 42394a71df50SFrank Blaschka NULL); 42404a71df50SFrank Blaschka return rc; 42414a71df50SFrank Blaschka } 42424a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr); 42434a71df50SFrank Blaschka 4244d64ecc22SEinar Lueck static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card, 4245d64ecc22SEinar Lueck struct qeth_reply *reply, unsigned long data) 4246d64ecc22SEinar Lueck { 4247686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 4248d64ecc22SEinar Lueck struct qeth_set_access_ctrl *access_ctrl_req; 42490f54761dSStefan Raspl int fallback = *(int *)reply->param; 4250d64ecc22SEinar Lueck 4251847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "setaccb"); 4252686c97eeSJulian Wiedmann if (cmd->hdr.return_code) 4253742d4d40SJulian Wiedmann return -EIO; 4254686c97eeSJulian Wiedmann qeth_setadpparms_inspect_rc(cmd); 4255d64ecc22SEinar Lueck 4256d64ecc22SEinar Lueck access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl; 4257d64ecc22SEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "setaccb"); 4258d64ecc22SEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name); 4259d64ecc22SEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "rc=%d", 4260d64ecc22SEinar Lueck cmd->data.setadapterparms.hdr.return_code); 42610f54761dSStefan Raspl if (cmd->data.setadapterparms.hdr.return_code != 42620f54761dSStefan Raspl SET_ACCESS_CTRL_RC_SUCCESS) 4263e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%#x) on device %x: %#x\n", 4264e19e5be8SJulian Wiedmann access_ctrl_req->subcmd_code, CARD_DEVID(card), 42650f54761dSStefan Raspl cmd->data.setadapterparms.hdr.return_code); 4266d64ecc22SEinar Lueck switch (cmd->data.setadapterparms.hdr.return_code) { 4267d64ecc22SEinar Lueck case SET_ACCESS_CTRL_RC_SUCCESS: 4268d64ecc22SEinar Lueck if (card->options.isolation == ISOLATION_MODE_NONE) { 4269d64ecc22SEinar Lueck dev_info(&card->gdev->dev, 4270d64ecc22SEinar Lueck "QDIO data connection isolation is deactivated\n"); 4271d64ecc22SEinar Lueck } else { 4272d64ecc22SEinar Lueck dev_info(&card->gdev->dev, 4273d64ecc22SEinar Lueck "QDIO data connection isolation is activated\n"); 4274d64ecc22SEinar Lueck } 4275d64ecc22SEinar Lueck break; 42760f54761dSStefan Raspl case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED: 4277e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "QDIO data connection isolation on device %x already deactivated\n", 4278e19e5be8SJulian Wiedmann CARD_DEVID(card)); 42790f54761dSStefan Raspl if (fallback) 42800f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 42810f54761dSStefan Raspl break; 42820f54761dSStefan Raspl case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED: 4283e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "QDIO data connection isolation on device %x already activated\n", 4284e19e5be8SJulian Wiedmann CARD_DEVID(card)); 42850f54761dSStefan Raspl if (fallback) 42860f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 42870f54761dSStefan Raspl break; 4288d64ecc22SEinar Lueck case SET_ACCESS_CTRL_RC_NOT_SUPPORTED: 4289d64ecc22SEinar Lueck dev_err(&card->gdev->dev, "Adapter does not " 4290d64ecc22SEinar Lueck "support QDIO data connection isolation\n"); 4291d64ecc22SEinar Lueck break; 4292d64ecc22SEinar Lueck case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER: 4293d64ecc22SEinar Lueck dev_err(&card->gdev->dev, 4294d64ecc22SEinar Lueck "Adapter is dedicated. " 4295d64ecc22SEinar Lueck "QDIO data connection isolation not supported\n"); 42960f54761dSStefan Raspl if (fallback) 42970f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 4298d64ecc22SEinar Lueck break; 4299d64ecc22SEinar Lueck case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF: 4300d64ecc22SEinar Lueck dev_err(&card->gdev->dev, 4301d64ecc22SEinar Lueck "TSO does not permit QDIO data connection isolation\n"); 43020f54761dSStefan Raspl if (fallback) 43030f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 4304d64ecc22SEinar Lueck break; 43050f54761dSStefan Raspl case SET_ACCESS_CTRL_RC_REFLREL_UNSUPPORTED: 43060f54761dSStefan Raspl dev_err(&card->gdev->dev, "The adjacent switch port does not " 43070f54761dSStefan Raspl "support reflective relay mode\n"); 43080f54761dSStefan Raspl if (fallback) 43090f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 43100f54761dSStefan Raspl break; 43110f54761dSStefan Raspl case SET_ACCESS_CTRL_RC_REFLREL_FAILED: 43120f54761dSStefan Raspl dev_err(&card->gdev->dev, "The reflective relay mode cannot be " 43130f54761dSStefan Raspl "enabled at the adjacent switch port"); 43140f54761dSStefan Raspl if (fallback) 43150f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 43160f54761dSStefan Raspl break; 43170f54761dSStefan Raspl case SET_ACCESS_CTRL_RC_REFLREL_DEACT_FAILED: 43180f54761dSStefan Raspl dev_warn(&card->gdev->dev, "Turning off reflective relay mode " 43190f54761dSStefan Raspl "at the adjacent switch failed\n"); 43200f54761dSStefan Raspl break; 4321d64ecc22SEinar Lueck default: 4322d64ecc22SEinar Lueck /* this should never happen */ 43230f54761dSStefan Raspl if (fallback) 43240f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 4325d64ecc22SEinar Lueck break; 4326d64ecc22SEinar Lueck } 4327742d4d40SJulian Wiedmann return (cmd->hdr.return_code) ? -EIO : 0; 4328d64ecc22SEinar Lueck } 4329d64ecc22SEinar Lueck 4330d64ecc22SEinar Lueck static int qeth_setadpparms_set_access_ctrl(struct qeth_card *card, 43310f54761dSStefan Raspl enum qeth_ipa_isolation_modes isolation, int fallback) 4332d64ecc22SEinar Lueck { 4333d64ecc22SEinar Lueck int rc; 4334d64ecc22SEinar Lueck struct qeth_cmd_buffer *iob; 4335d64ecc22SEinar Lueck struct qeth_ipa_cmd *cmd; 4336d64ecc22SEinar Lueck struct qeth_set_access_ctrl *access_ctrl_req; 4337d64ecc22SEinar Lueck 4338847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "setacctl"); 4339d64ecc22SEinar Lueck 4340d64ecc22SEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "setacctl"); 4341d64ecc22SEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name); 4342d64ecc22SEinar Lueck 4343d64ecc22SEinar Lueck iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_ACCESS_CONTROL, 4344d64ecc22SEinar Lueck sizeof(struct qeth_ipacmd_setadpparms_hdr) + 4345d64ecc22SEinar Lueck sizeof(struct qeth_set_access_ctrl)); 43461aec42bcSThomas Richter if (!iob) 43471aec42bcSThomas Richter return -ENOMEM; 4348ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 4349d64ecc22SEinar Lueck access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl; 4350d64ecc22SEinar Lueck access_ctrl_req->subcmd_code = isolation; 4351d64ecc22SEinar Lueck 4352d64ecc22SEinar Lueck rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_set_access_ctrl_cb, 43530f54761dSStefan Raspl &fallback); 4354d64ecc22SEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "rc=%d", rc); 4355d64ecc22SEinar Lueck return rc; 4356d64ecc22SEinar Lueck } 4357d64ecc22SEinar Lueck 43580f54761dSStefan Raspl int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback) 4359d64ecc22SEinar Lueck { 4360d64ecc22SEinar Lueck int rc = 0; 4361d64ecc22SEinar Lueck 4362847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "setactlo"); 4363d64ecc22SEinar Lueck 43645113fec0SUrsula Braun if ((card->info.type == QETH_CARD_TYPE_OSD || 43655113fec0SUrsula Braun card->info.type == QETH_CARD_TYPE_OSX) && 4366d64ecc22SEinar Lueck qeth_adp_supported(card, IPA_SETADP_SET_ACCESS_CONTROL)) { 4367d64ecc22SEinar Lueck rc = qeth_setadpparms_set_access_ctrl(card, 43680f54761dSStefan Raspl card->options.isolation, fallback); 4369d64ecc22SEinar Lueck if (rc) { 4370e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(3, "IPA(SET_ACCESS_CTRL(%d) on device %x: sent failed\n", 4371e19e5be8SJulian Wiedmann rc, CARD_DEVID(card)); 43720f54761dSStefan Raspl rc = -EOPNOTSUPP; 4373d64ecc22SEinar Lueck } 4374d64ecc22SEinar Lueck } else if (card->options.isolation != ISOLATION_MODE_NONE) { 4375d64ecc22SEinar Lueck card->options.isolation = ISOLATION_MODE_NONE; 4376d64ecc22SEinar Lueck 4377d64ecc22SEinar Lueck dev_err(&card->gdev->dev, "Adapter does not " 4378d64ecc22SEinar Lueck "support QDIO data connection isolation\n"); 4379d64ecc22SEinar Lueck rc = -EOPNOTSUPP; 4380d64ecc22SEinar Lueck } 4381d64ecc22SEinar Lueck return rc; 4382d64ecc22SEinar Lueck } 4383d64ecc22SEinar Lueck EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online); 4384d64ecc22SEinar Lueck 43854a71df50SFrank Blaschka void qeth_tx_timeout(struct net_device *dev) 43864a71df50SFrank Blaschka { 43874a71df50SFrank Blaschka struct qeth_card *card; 43884a71df50SFrank Blaschka 4389509e2562SHeiko Carstens card = dev->ml_priv; 4390847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "txtimeo"); 43914a71df50SFrank Blaschka card->stats.tx_errors++; 43924a71df50SFrank Blaschka qeth_schedule_recovery(card); 43934a71df50SFrank Blaschka } 43944a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_tx_timeout); 43954a71df50SFrank Blaschka 4396942d6984SJulian Wiedmann static int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum) 43974a71df50SFrank Blaschka { 4398509e2562SHeiko Carstens struct qeth_card *card = dev->ml_priv; 43994a71df50SFrank Blaschka int rc = 0; 44004a71df50SFrank Blaschka 44014a71df50SFrank Blaschka switch (regnum) { 44024a71df50SFrank Blaschka case MII_BMCR: /* Basic mode control register */ 44034a71df50SFrank Blaschka rc = BMCR_FULLDPLX; 44044a71df50SFrank Blaschka if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) && 44054a71df50SFrank Blaschka (card->info.link_type != QETH_LINK_TYPE_OSN) && 440654e049c2SJulian Wiedmann (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH) && 440754e049c2SJulian Wiedmann (card->info.link_type != QETH_LINK_TYPE_25GBIT_ETH)) 44084a71df50SFrank Blaschka rc |= BMCR_SPEED100; 44094a71df50SFrank Blaschka break; 44104a71df50SFrank Blaschka case MII_BMSR: /* Basic mode status register */ 44114a71df50SFrank Blaschka rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS | 44124a71df50SFrank Blaschka BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL | 44134a71df50SFrank Blaschka BMSR_100BASE4; 44144a71df50SFrank Blaschka break; 44154a71df50SFrank Blaschka case MII_PHYSID1: /* PHYS ID 1 */ 44164a71df50SFrank Blaschka rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) | 44174a71df50SFrank Blaschka dev->dev_addr[2]; 44184a71df50SFrank Blaschka rc = (rc >> 5) & 0xFFFF; 44194a71df50SFrank Blaschka break; 44204a71df50SFrank Blaschka case MII_PHYSID2: /* PHYS ID 2 */ 44214a71df50SFrank Blaschka rc = (dev->dev_addr[2] << 10) & 0xFFFF; 44224a71df50SFrank Blaschka break; 44234a71df50SFrank Blaschka case MII_ADVERTISE: /* Advertisement control reg */ 44244a71df50SFrank Blaschka rc = ADVERTISE_ALL; 44254a71df50SFrank Blaschka break; 44264a71df50SFrank Blaschka case MII_LPA: /* Link partner ability reg */ 44274a71df50SFrank Blaschka rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL | 44284a71df50SFrank Blaschka LPA_100BASE4 | LPA_LPACK; 44294a71df50SFrank Blaschka break; 44304a71df50SFrank Blaschka case MII_EXPANSION: /* Expansion register */ 44314a71df50SFrank Blaschka break; 44324a71df50SFrank Blaschka case MII_DCOUNTER: /* disconnect counter */ 44334a71df50SFrank Blaschka break; 44344a71df50SFrank Blaschka case MII_FCSCOUNTER: /* false carrier counter */ 44354a71df50SFrank Blaschka break; 44364a71df50SFrank Blaschka case MII_NWAYTEST: /* N-way auto-neg test register */ 44374a71df50SFrank Blaschka break; 44384a71df50SFrank Blaschka case MII_RERRCOUNTER: /* rx error counter */ 44394a71df50SFrank Blaschka rc = card->stats.rx_errors; 44404a71df50SFrank Blaschka break; 44414a71df50SFrank Blaschka case MII_SREVISION: /* silicon revision */ 44424a71df50SFrank Blaschka break; 44434a71df50SFrank Blaschka case MII_RESV1: /* reserved 1 */ 44444a71df50SFrank Blaschka break; 44454a71df50SFrank Blaschka case MII_LBRERROR: /* loopback, rx, bypass error */ 44464a71df50SFrank Blaschka break; 44474a71df50SFrank Blaschka case MII_PHYADDR: /* physical address */ 44484a71df50SFrank Blaschka break; 44494a71df50SFrank Blaschka case MII_RESV2: /* reserved 2 */ 44504a71df50SFrank Blaschka break; 44514a71df50SFrank Blaschka case MII_TPISTATUS: /* TPI status for 10mbps */ 44524a71df50SFrank Blaschka break; 44534a71df50SFrank Blaschka case MII_NCONFIG: /* network interface config */ 44544a71df50SFrank Blaschka break; 44554a71df50SFrank Blaschka default: 44564a71df50SFrank Blaschka break; 44574a71df50SFrank Blaschka } 44584a71df50SFrank Blaschka return rc; 44594a71df50SFrank Blaschka } 44604a71df50SFrank Blaschka 44614a71df50SFrank Blaschka static int qeth_snmp_command_cb(struct qeth_card *card, 44624a71df50SFrank Blaschka struct qeth_reply *reply, unsigned long sdata) 44634a71df50SFrank Blaschka { 44644a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 44654a71df50SFrank Blaschka struct qeth_arp_query_info *qinfo; 44664a71df50SFrank Blaschka unsigned char *data; 44679a764c1eSJulian Wiedmann void *snmp_data; 44684a71df50SFrank Blaschka __u16 data_len; 44694a71df50SFrank Blaschka 4470847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "snpcmdcb"); 44714a71df50SFrank Blaschka 44724a71df50SFrank Blaschka cmd = (struct qeth_ipa_cmd *) sdata; 44734a71df50SFrank Blaschka data = (unsigned char *)((char *)cmd - reply->offset); 44744a71df50SFrank Blaschka qinfo = (struct qeth_arp_query_info *) reply->param; 44754a71df50SFrank Blaschka 44764a71df50SFrank Blaschka if (cmd->hdr.return_code) { 44778a593148SThomas Richter QETH_CARD_TEXT_(card, 4, "scer1%x", cmd->hdr.return_code); 44784b7ae122SJulian Wiedmann return -EIO; 44794a71df50SFrank Blaschka } 44804a71df50SFrank Blaschka if (cmd->data.setadapterparms.hdr.return_code) { 44814a71df50SFrank Blaschka cmd->hdr.return_code = 44824a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.return_code; 44838a593148SThomas Richter QETH_CARD_TEXT_(card, 4, "scer2%x", cmd->hdr.return_code); 44844b7ae122SJulian Wiedmann return -EIO; 44854a71df50SFrank Blaschka } 44864a71df50SFrank Blaschka data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data)); 44879a764c1eSJulian Wiedmann if (cmd->data.setadapterparms.hdr.seq_no == 1) { 44889a764c1eSJulian Wiedmann snmp_data = &cmd->data.setadapterparms.data.snmp; 44899a764c1eSJulian Wiedmann data_len -= offsetof(struct qeth_ipa_cmd, 44909a764c1eSJulian Wiedmann data.setadapterparms.data.snmp); 44919a764c1eSJulian Wiedmann } else { 44929a764c1eSJulian Wiedmann snmp_data = &cmd->data.setadapterparms.data.snmp.request; 44939a764c1eSJulian Wiedmann data_len -= offsetof(struct qeth_ipa_cmd, 44949a764c1eSJulian Wiedmann data.setadapterparms.data.snmp.request); 44959a764c1eSJulian Wiedmann } 44964a71df50SFrank Blaschka 44974a71df50SFrank Blaschka /* check if there is enough room in userspace */ 44984a71df50SFrank Blaschka if ((qinfo->udata_len - qinfo->udata_offset) < data_len) { 44994b7ae122SJulian Wiedmann QETH_CARD_TEXT_(card, 4, "scer3%i", -ENOSPC); 45004b7ae122SJulian Wiedmann return -ENOSPC; 45014a71df50SFrank Blaschka } 4502847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 4, "snore%i", 45034a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.used_total); 4504847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 4, "sseqn%i", 45054a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.seq_no); 45064a71df50SFrank Blaschka /*copy entries to user buffer*/ 45079a764c1eSJulian Wiedmann memcpy(qinfo->udata + qinfo->udata_offset, snmp_data, data_len); 45084a71df50SFrank Blaschka qinfo->udata_offset += data_len; 45099a764c1eSJulian Wiedmann 45104a71df50SFrank Blaschka /* check if all replies received ... */ 4511847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 4, "srtot%i", 45124a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.used_total); 4513847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 4, "srseq%i", 45144a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.seq_no); 45154a71df50SFrank Blaschka if (cmd->data.setadapterparms.hdr.seq_no < 45164a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.used_total) 45174a71df50SFrank Blaschka return 1; 45184a71df50SFrank Blaschka return 0; 45194a71df50SFrank Blaschka } 45204a71df50SFrank Blaschka 4521942d6984SJulian Wiedmann static int qeth_snmp_command(struct qeth_card *card, char __user *udata) 45224a71df50SFrank Blaschka { 45234a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 45244a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 45254a71df50SFrank Blaschka struct qeth_snmp_ureq *ureq; 45266fb392b1SUrsula Braun unsigned int req_len; 45274a71df50SFrank Blaschka struct qeth_arp_query_info qinfo = {0, }; 45284a71df50SFrank Blaschka int rc = 0; 45294a71df50SFrank Blaschka 4530847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "snmpcmd"); 45314a71df50SFrank Blaschka 45324a71df50SFrank Blaschka if (card->info.guestlan) 45334a71df50SFrank Blaschka return -EOPNOTSUPP; 45344a71df50SFrank Blaschka 45354a71df50SFrank Blaschka if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) && 45364fda3354SJulian Wiedmann IS_LAYER3(card)) 45374a71df50SFrank Blaschka return -EOPNOTSUPP; 45384fda3354SJulian Wiedmann 45394a71df50SFrank Blaschka /* skip 4 bytes (data_len struct member) to get req_len */ 45404a71df50SFrank Blaschka if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int))) 45414a71df50SFrank Blaschka return -EFAULT; 45426fb392b1SUrsula Braun if (req_len > (QETH_BUFSIZE - IPA_PDU_HEADER_SIZE - 45436fb392b1SUrsula Braun sizeof(struct qeth_ipacmd_hdr) - 45446fb392b1SUrsula Braun sizeof(struct qeth_ipacmd_setadpparms_hdr))) 45456fb392b1SUrsula Braun return -EINVAL; 45464986f3f0SJulia Lawall ureq = memdup_user(udata, req_len + sizeof(struct qeth_snmp_ureq_hdr)); 45474986f3f0SJulia Lawall if (IS_ERR(ureq)) { 4548847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "snmpnome"); 45494986f3f0SJulia Lawall return PTR_ERR(ureq); 45504a71df50SFrank Blaschka } 45514a71df50SFrank Blaschka qinfo.udata_len = ureq->hdr.data_len; 45524a71df50SFrank Blaschka qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL); 45534a71df50SFrank Blaschka if (!qinfo.udata) { 45544a71df50SFrank Blaschka kfree(ureq); 45554a71df50SFrank Blaschka return -ENOMEM; 45564a71df50SFrank Blaschka } 45574a71df50SFrank Blaschka qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr); 45584a71df50SFrank Blaschka 45594a71df50SFrank Blaschka iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL, 45604a71df50SFrank Blaschka QETH_SNMP_SETADP_CMDLENGTH + req_len); 45611aec42bcSThomas Richter if (!iob) { 45621aec42bcSThomas Richter rc = -ENOMEM; 45631aec42bcSThomas Richter goto out; 45641aec42bcSThomas Richter } 4565c2153277SJulian Wiedmann 4566c2153277SJulian Wiedmann /* for large requests, fix-up the length fields: */ 4567c2153277SJulian Wiedmann qeth_prepare_ipa_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len); 4568c2153277SJulian Wiedmann 4569ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 45704a71df50SFrank Blaschka memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len); 4571c2153277SJulian Wiedmann rc = qeth_send_ipa_cmd(card, iob, qeth_snmp_command_cb, &qinfo); 45724a71df50SFrank Blaschka if (rc) 4573e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "SNMP command failed on device %x: (%#x)\n", 4574e19e5be8SJulian Wiedmann CARD_DEVID(card), rc); 45754a71df50SFrank Blaschka else { 45764a71df50SFrank Blaschka if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) 45774a71df50SFrank Blaschka rc = -EFAULT; 45784a71df50SFrank Blaschka } 45791aec42bcSThomas Richter out: 45804a71df50SFrank Blaschka kfree(ureq); 45814a71df50SFrank Blaschka kfree(qinfo.udata); 45824a71df50SFrank Blaschka return rc; 45834a71df50SFrank Blaschka } 45844a71df50SFrank Blaschka 4585c3ab96f3SFrank Blaschka static int qeth_setadpparms_query_oat_cb(struct qeth_card *card, 4586c3ab96f3SFrank Blaschka struct qeth_reply *reply, unsigned long data) 4587c3ab96f3SFrank Blaschka { 4588686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data; 4589c3ab96f3SFrank Blaschka struct qeth_qoat_priv *priv; 4590c3ab96f3SFrank Blaschka char *resdata; 4591c3ab96f3SFrank Blaschka int resdatalen; 4592c3ab96f3SFrank Blaschka 4593c3ab96f3SFrank Blaschka QETH_CARD_TEXT(card, 3, "qoatcb"); 4594686c97eeSJulian Wiedmann if (qeth_setadpparms_inspect_rc(cmd)) 45954b7ae122SJulian Wiedmann return -EIO; 4596c3ab96f3SFrank Blaschka 4597c3ab96f3SFrank Blaschka priv = (struct qeth_qoat_priv *)reply->param; 4598c3ab96f3SFrank Blaschka resdatalen = cmd->data.setadapterparms.hdr.cmdlength; 4599c3ab96f3SFrank Blaschka resdata = (char *)data + 28; 4600c3ab96f3SFrank Blaschka 46014b7ae122SJulian Wiedmann if (resdatalen > (priv->buffer_len - priv->response_len)) 46024b7ae122SJulian Wiedmann return -ENOSPC; 4603c3ab96f3SFrank Blaschka 4604c3ab96f3SFrank Blaschka memcpy((priv->buffer + priv->response_len), resdata, 4605c3ab96f3SFrank Blaschka resdatalen); 4606c3ab96f3SFrank Blaschka priv->response_len += resdatalen; 4607c3ab96f3SFrank Blaschka 4608c3ab96f3SFrank Blaschka if (cmd->data.setadapterparms.hdr.seq_no < 4609c3ab96f3SFrank Blaschka cmd->data.setadapterparms.hdr.used_total) 4610c3ab96f3SFrank Blaschka return 1; 4611c3ab96f3SFrank Blaschka return 0; 4612c3ab96f3SFrank Blaschka } 4613c3ab96f3SFrank Blaschka 4614942d6984SJulian Wiedmann static int qeth_query_oat_command(struct qeth_card *card, char __user *udata) 4615c3ab96f3SFrank Blaschka { 4616c3ab96f3SFrank Blaschka int rc = 0; 4617c3ab96f3SFrank Blaschka struct qeth_cmd_buffer *iob; 4618c3ab96f3SFrank Blaschka struct qeth_ipa_cmd *cmd; 4619c3ab96f3SFrank Blaschka struct qeth_query_oat *oat_req; 4620c3ab96f3SFrank Blaschka struct qeth_query_oat_data oat_data; 4621c3ab96f3SFrank Blaschka struct qeth_qoat_priv priv; 4622c3ab96f3SFrank Blaschka void __user *tmp; 4623c3ab96f3SFrank Blaschka 4624c3ab96f3SFrank Blaschka QETH_CARD_TEXT(card, 3, "qoatcmd"); 4625c3ab96f3SFrank Blaschka 4626c3ab96f3SFrank Blaschka if (!qeth_adp_supported(card, IPA_SETADP_QUERY_OAT)) { 4627c3ab96f3SFrank Blaschka rc = -EOPNOTSUPP; 4628c3ab96f3SFrank Blaschka goto out; 4629c3ab96f3SFrank Blaschka } 4630c3ab96f3SFrank Blaschka 4631c3ab96f3SFrank Blaschka if (copy_from_user(&oat_data, udata, 4632c3ab96f3SFrank Blaschka sizeof(struct qeth_query_oat_data))) { 4633c3ab96f3SFrank Blaschka rc = -EFAULT; 4634c3ab96f3SFrank Blaschka goto out; 4635c3ab96f3SFrank Blaschka } 4636c3ab96f3SFrank Blaschka 4637c3ab96f3SFrank Blaschka priv.buffer_len = oat_data.buffer_len; 4638c3ab96f3SFrank Blaschka priv.response_len = 0; 4639aec45e85SWenjia Zhang priv.buffer = vzalloc(oat_data.buffer_len); 4640c3ab96f3SFrank Blaschka if (!priv.buffer) { 4641c3ab96f3SFrank Blaschka rc = -ENOMEM; 4642c3ab96f3SFrank Blaschka goto out; 4643c3ab96f3SFrank Blaschka } 4644c3ab96f3SFrank Blaschka 4645c3ab96f3SFrank Blaschka iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_OAT, 4646c3ab96f3SFrank Blaschka sizeof(struct qeth_ipacmd_setadpparms_hdr) + 4647c3ab96f3SFrank Blaschka sizeof(struct qeth_query_oat)); 46481aec42bcSThomas Richter if (!iob) { 46491aec42bcSThomas Richter rc = -ENOMEM; 46501aec42bcSThomas Richter goto out_free; 46511aec42bcSThomas Richter } 4652ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 4653c3ab96f3SFrank Blaschka oat_req = &cmd->data.setadapterparms.data.query_oat; 4654c3ab96f3SFrank Blaschka oat_req->subcmd_code = oat_data.command; 4655c3ab96f3SFrank Blaschka 4656c3ab96f3SFrank Blaschka rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_query_oat_cb, 4657c3ab96f3SFrank Blaschka &priv); 4658c3ab96f3SFrank Blaschka if (!rc) { 4659c3ab96f3SFrank Blaschka if (is_compat_task()) 4660c3ab96f3SFrank Blaschka tmp = compat_ptr(oat_data.ptr); 4661c3ab96f3SFrank Blaschka else 4662c3ab96f3SFrank Blaschka tmp = (void __user *)(unsigned long)oat_data.ptr; 4663c3ab96f3SFrank Blaschka 4664c3ab96f3SFrank Blaschka if (copy_to_user(tmp, priv.buffer, 4665c3ab96f3SFrank Blaschka priv.response_len)) { 4666c3ab96f3SFrank Blaschka rc = -EFAULT; 4667c3ab96f3SFrank Blaschka goto out_free; 4668c3ab96f3SFrank Blaschka } 4669c3ab96f3SFrank Blaschka 4670c3ab96f3SFrank Blaschka oat_data.response_len = priv.response_len; 4671c3ab96f3SFrank Blaschka 4672c3ab96f3SFrank Blaschka if (copy_to_user(udata, &oat_data, 4673c3ab96f3SFrank Blaschka sizeof(struct qeth_query_oat_data))) 4674c3ab96f3SFrank Blaschka rc = -EFAULT; 46754b7ae122SJulian Wiedmann } 4676c3ab96f3SFrank Blaschka 4677c3ab96f3SFrank Blaschka out_free: 4678aec45e85SWenjia Zhang vfree(priv.buffer); 4679c3ab96f3SFrank Blaschka out: 4680c3ab96f3SFrank Blaschka return rc; 4681c3ab96f3SFrank Blaschka } 4682c3ab96f3SFrank Blaschka 4683e71e4072SHeiko Carstens static int qeth_query_card_info_cb(struct qeth_card *card, 468402d5cb5bSEugene Crosser struct qeth_reply *reply, unsigned long data) 468502d5cb5bSEugene Crosser { 4686686c97eeSJulian Wiedmann struct carrier_info *carrier_info = (struct carrier_info *)reply->param; 4687686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data; 468802d5cb5bSEugene Crosser struct qeth_query_card_info *card_info; 468902d5cb5bSEugene Crosser 469002d5cb5bSEugene Crosser QETH_CARD_TEXT(card, 2, "qcrdincb"); 4691686c97eeSJulian Wiedmann if (qeth_setadpparms_inspect_rc(cmd)) 4692742d4d40SJulian Wiedmann return -EIO; 4693686c97eeSJulian Wiedmann 469402d5cb5bSEugene Crosser card_info = &cmd->data.setadapterparms.data.card_info; 469502d5cb5bSEugene Crosser carrier_info->card_type = card_info->card_type; 469602d5cb5bSEugene Crosser carrier_info->port_mode = card_info->port_mode; 469702d5cb5bSEugene Crosser carrier_info->port_speed = card_info->port_speed; 469802d5cb5bSEugene Crosser return 0; 469902d5cb5bSEugene Crosser } 470002d5cb5bSEugene Crosser 4701d896ac62SJulian Wiedmann int qeth_query_card_info(struct qeth_card *card, 470202d5cb5bSEugene Crosser struct carrier_info *carrier_info) 470302d5cb5bSEugene Crosser { 470402d5cb5bSEugene Crosser struct qeth_cmd_buffer *iob; 470502d5cb5bSEugene Crosser 470602d5cb5bSEugene Crosser QETH_CARD_TEXT(card, 2, "qcrdinfo"); 470702d5cb5bSEugene Crosser if (!qeth_adp_supported(card, IPA_SETADP_QUERY_CARD_INFO)) 470802d5cb5bSEugene Crosser return -EOPNOTSUPP; 470902d5cb5bSEugene Crosser iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_CARD_INFO, 471002d5cb5bSEugene Crosser sizeof(struct qeth_ipacmd_setadpparms_hdr)); 47111aec42bcSThomas Richter if (!iob) 47121aec42bcSThomas Richter return -ENOMEM; 471302d5cb5bSEugene Crosser return qeth_send_ipa_cmd(card, iob, qeth_query_card_info_cb, 471402d5cb5bSEugene Crosser (void *)carrier_info); 471502d5cb5bSEugene Crosser } 471602d5cb5bSEugene Crosser 4717ec61bd2fSJulian Wiedmann /** 4718ec61bd2fSJulian Wiedmann * qeth_vm_request_mac() - Request a hypervisor-managed MAC address 4719ec61bd2fSJulian Wiedmann * @card: pointer to a qeth_card 4720ec61bd2fSJulian Wiedmann * 4721ec61bd2fSJulian Wiedmann * Returns 4722ec61bd2fSJulian Wiedmann * 0, if a MAC address has been set for the card's netdevice 4723ec61bd2fSJulian Wiedmann * a return code, for various error conditions 4724ec61bd2fSJulian Wiedmann */ 4725ec61bd2fSJulian Wiedmann int qeth_vm_request_mac(struct qeth_card *card) 4726ec61bd2fSJulian Wiedmann { 4727ec61bd2fSJulian Wiedmann struct diag26c_mac_resp *response; 4728ec61bd2fSJulian Wiedmann struct diag26c_mac_req *request; 4729ec61bd2fSJulian Wiedmann struct ccw_dev_id id; 4730ec61bd2fSJulian Wiedmann int rc; 4731ec61bd2fSJulian Wiedmann 4732ec61bd2fSJulian Wiedmann QETH_DBF_TEXT(SETUP, 2, "vmreqmac"); 4733ec61bd2fSJulian Wiedmann 4734ec61bd2fSJulian Wiedmann request = kzalloc(sizeof(*request), GFP_KERNEL | GFP_DMA); 4735ec61bd2fSJulian Wiedmann response = kzalloc(sizeof(*response), GFP_KERNEL | GFP_DMA); 4736ec61bd2fSJulian Wiedmann if (!request || !response) { 4737ec61bd2fSJulian Wiedmann rc = -ENOMEM; 4738ec61bd2fSJulian Wiedmann goto out; 4739ec61bd2fSJulian Wiedmann } 4740ec61bd2fSJulian Wiedmann 474146646105SJulian Wiedmann ccw_device_get_id(CARD_DDEV(card), &id); 4742ec61bd2fSJulian Wiedmann request->resp_buf_len = sizeof(*response); 4743ec61bd2fSJulian Wiedmann request->resp_version = DIAG26C_VERSION2; 4744ec61bd2fSJulian Wiedmann request->op_code = DIAG26C_GET_MAC; 4745ec61bd2fSJulian Wiedmann request->devno = id.devno; 4746ec61bd2fSJulian Wiedmann 4747615dff22SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, request, sizeof(*request)); 4748ec61bd2fSJulian Wiedmann rc = diag26c(request, response, DIAG26C_MAC_SERVICES); 4749615dff22SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, request, sizeof(*request)); 4750ec61bd2fSJulian Wiedmann if (rc) 4751ec61bd2fSJulian Wiedmann goto out; 4752615dff22SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, response, sizeof(*response)); 4753ec61bd2fSJulian Wiedmann 4754ec61bd2fSJulian Wiedmann if (request->resp_buf_len < sizeof(*response) || 4755ec61bd2fSJulian Wiedmann response->version != request->resp_version) { 4756ec61bd2fSJulian Wiedmann rc = -EIO; 4757ec61bd2fSJulian Wiedmann QETH_DBF_TEXT(SETUP, 2, "badresp"); 4758ec61bd2fSJulian Wiedmann QETH_DBF_HEX(SETUP, 2, &request->resp_buf_len, 4759ec61bd2fSJulian Wiedmann sizeof(request->resp_buf_len)); 4760ec61bd2fSJulian Wiedmann } else if (!is_valid_ether_addr(response->mac)) { 4761ec61bd2fSJulian Wiedmann rc = -EINVAL; 4762ec61bd2fSJulian Wiedmann QETH_DBF_TEXT(SETUP, 2, "badmac"); 4763ec61bd2fSJulian Wiedmann QETH_DBF_HEX(SETUP, 2, response->mac, ETH_ALEN); 4764ec61bd2fSJulian Wiedmann } else { 4765ec61bd2fSJulian Wiedmann ether_addr_copy(card->dev->dev_addr, response->mac); 4766ec61bd2fSJulian Wiedmann } 4767ec61bd2fSJulian Wiedmann 4768ec61bd2fSJulian Wiedmann out: 4769ec61bd2fSJulian Wiedmann kfree(response); 4770ec61bd2fSJulian Wiedmann kfree(request); 4771ec61bd2fSJulian Wiedmann return rc; 4772ec61bd2fSJulian Wiedmann } 4773ec61bd2fSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_vm_request_mac); 4774ec61bd2fSJulian Wiedmann 4775cef6ff22SJulian Wiedmann static int qeth_get_qdio_q_format(struct qeth_card *card) 47764a71df50SFrank Blaschka { 4777aa59004bSJulian Wiedmann if (card->info.type == QETH_CARD_TYPE_IQD) 4778aa59004bSJulian Wiedmann return QDIO_IQDIO_QFMT; 4779aa59004bSJulian Wiedmann else 4780aa59004bSJulian Wiedmann return QDIO_QETH_QFMT; 47814a71df50SFrank Blaschka } 47824a71df50SFrank Blaschka 4783d0ff1f52SUrsula Braun static void qeth_determine_capabilities(struct qeth_card *card) 4784d0ff1f52SUrsula Braun { 4785d0ff1f52SUrsula Braun int rc; 4786d0ff1f52SUrsula Braun int length; 4787d0ff1f52SUrsula Braun char *prcd; 4788d0ff1f52SUrsula Braun struct ccw_device *ddev; 4789d0ff1f52SUrsula Braun int ddev_offline = 0; 4790d0ff1f52SUrsula Braun 4791d0ff1f52SUrsula Braun QETH_DBF_TEXT(SETUP, 2, "detcapab"); 4792d0ff1f52SUrsula Braun ddev = CARD_DDEV(card); 4793d0ff1f52SUrsula Braun if (!ddev->online) { 4794d0ff1f52SUrsula Braun ddev_offline = 1; 4795d0ff1f52SUrsula Braun rc = ccw_device_set_online(ddev); 4796d0ff1f52SUrsula Braun if (rc) { 4797d0ff1f52SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); 4798d0ff1f52SUrsula Braun goto out; 4799d0ff1f52SUrsula Braun } 4800d0ff1f52SUrsula Braun } 4801d0ff1f52SUrsula Braun 4802d0ff1f52SUrsula Braun rc = qeth_read_conf_data(card, (void **) &prcd, &length); 4803d0ff1f52SUrsula Braun if (rc) { 4804e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "qeth_read_conf_data on device %x returned %i\n", 4805e19e5be8SJulian Wiedmann CARD_DEVID(card), rc); 4806d0ff1f52SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); 4807d0ff1f52SUrsula Braun goto out_offline; 4808d0ff1f52SUrsula Braun } 4809d0ff1f52SUrsula Braun qeth_configure_unitaddr(card, prcd); 48107e665afbSUrsula Braun if (ddev_offline) 4811d0ff1f52SUrsula Braun qeth_configure_blkt_default(card, prcd); 4812d0ff1f52SUrsula Braun kfree(prcd); 4813d0ff1f52SUrsula Braun 4814d0ff1f52SUrsula Braun rc = qdio_get_ssqd_desc(ddev, &card->ssqd); 4815d0ff1f52SUrsula Braun if (rc) 4816d0ff1f52SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); 4817d0ff1f52SUrsula Braun 48180da9581dSEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "qfmt%d", card->ssqd.qfmt); 4819bbeb2414SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "ac1:%02x", card->ssqd.qdioac1); 4820bbeb2414SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "ac2:%04x", card->ssqd.qdioac2); 4821bbeb2414SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "ac3:%04x", card->ssqd.qdioac3); 48220da9581dSEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "icnt%d", card->ssqd.icnt); 48230da9581dSEinar Lueck if (!((card->ssqd.qfmt != QDIO_IQDIO_QFMT) || 48240da9581dSEinar Lueck ((card->ssqd.qdioac1 & CHSC_AC1_INITIATE_INPUTQ) == 0) || 48250da9581dSEinar Lueck ((card->ssqd.qdioac3 & CHSC_AC3_FORMAT2_CQ_AVAILABLE) == 0))) { 48260da9581dSEinar Lueck dev_info(&card->gdev->dev, 48270da9581dSEinar Lueck "Completion Queueing supported\n"); 48280da9581dSEinar Lueck } else { 48290da9581dSEinar Lueck card->options.cq = QETH_CQ_NOTAVAILABLE; 48300da9581dSEinar Lueck } 48310da9581dSEinar Lueck 48320da9581dSEinar Lueck 4833d0ff1f52SUrsula Braun out_offline: 4834d0ff1f52SUrsula Braun if (ddev_offline == 1) 4835d0ff1f52SUrsula Braun ccw_device_set_offline(ddev); 4836d0ff1f52SUrsula Braun out: 4837d0ff1f52SUrsula Braun return; 4838d0ff1f52SUrsula Braun } 4839d0ff1f52SUrsula Braun 4840cef6ff22SJulian Wiedmann static void qeth_qdio_establish_cq(struct qeth_card *card, 48410da9581dSEinar Lueck struct qdio_buffer **in_sbal_ptrs, 4842cef6ff22SJulian Wiedmann void (**queue_start_poll) 4843cef6ff22SJulian Wiedmann (struct ccw_device *, int, 4844cef6ff22SJulian Wiedmann unsigned long)) 4845cef6ff22SJulian Wiedmann { 48460da9581dSEinar Lueck int i; 48470da9581dSEinar Lueck 48480da9581dSEinar Lueck if (card->options.cq == QETH_CQ_ENABLED) { 48490da9581dSEinar Lueck int offset = QDIO_MAX_BUFFERS_PER_Q * 48500da9581dSEinar Lueck (card->qdio.no_in_queues - 1); 48510da9581dSEinar Lueck for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) { 48520da9581dSEinar Lueck in_sbal_ptrs[offset + i] = (struct qdio_buffer *) 48530da9581dSEinar Lueck virt_to_phys(card->qdio.c_q->bufs[i].buffer); 48540da9581dSEinar Lueck } 48550da9581dSEinar Lueck 48560da9581dSEinar Lueck queue_start_poll[card->qdio.no_in_queues - 1] = NULL; 48570da9581dSEinar Lueck } 48580da9581dSEinar Lueck } 48590da9581dSEinar Lueck 48604a71df50SFrank Blaschka static int qeth_qdio_establish(struct qeth_card *card) 48614a71df50SFrank Blaschka { 48624a71df50SFrank Blaschka struct qdio_initialize init_data; 48634a71df50SFrank Blaschka char *qib_param_field; 48644a71df50SFrank Blaschka struct qdio_buffer **in_sbal_ptrs; 4865104ea556Sfrank.blaschka@de.ibm.com void (**queue_start_poll) (struct ccw_device *, int, unsigned long); 48664a71df50SFrank Blaschka struct qdio_buffer **out_sbal_ptrs; 48674a71df50SFrank Blaschka int i, j, k; 48684a71df50SFrank Blaschka int rc = 0; 48694a71df50SFrank Blaschka 4870d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "qdioest"); 48714a71df50SFrank Blaschka 48726396bb22SKees Cook qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q, 48734a71df50SFrank Blaschka GFP_KERNEL); 4874104ea556Sfrank.blaschka@de.ibm.com if (!qib_param_field) { 4875104ea556Sfrank.blaschka@de.ibm.com rc = -ENOMEM; 4876104ea556Sfrank.blaschka@de.ibm.com goto out_free_nothing; 4877104ea556Sfrank.blaschka@de.ibm.com } 48784a71df50SFrank Blaschka 48794a71df50SFrank Blaschka qeth_create_qib_param_field(card, qib_param_field); 48804a71df50SFrank Blaschka qeth_create_qib_param_field_blkt(card, qib_param_field); 48814a71df50SFrank Blaschka 48826396bb22SKees Cook in_sbal_ptrs = kcalloc(card->qdio.no_in_queues * QDIO_MAX_BUFFERS_PER_Q, 48836396bb22SKees Cook sizeof(void *), 48844a71df50SFrank Blaschka GFP_KERNEL); 48854a71df50SFrank Blaschka if (!in_sbal_ptrs) { 4886104ea556Sfrank.blaschka@de.ibm.com rc = -ENOMEM; 4887104ea556Sfrank.blaschka@de.ibm.com goto out_free_qib_param; 48884a71df50SFrank Blaschka } 48890da9581dSEinar Lueck for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) { 48904a71df50SFrank Blaschka in_sbal_ptrs[i] = (struct qdio_buffer *) 48914a71df50SFrank Blaschka virt_to_phys(card->qdio.in_q->bufs[i].buffer); 48920da9581dSEinar Lueck } 48934a71df50SFrank Blaschka 48946396bb22SKees Cook queue_start_poll = kcalloc(card->qdio.no_in_queues, sizeof(void *), 48950da9581dSEinar Lueck GFP_KERNEL); 4896104ea556Sfrank.blaschka@de.ibm.com if (!queue_start_poll) { 4897104ea556Sfrank.blaschka@de.ibm.com rc = -ENOMEM; 4898104ea556Sfrank.blaschka@de.ibm.com goto out_free_in_sbals; 4899104ea556Sfrank.blaschka@de.ibm.com } 49000da9581dSEinar Lueck for (i = 0; i < card->qdio.no_in_queues; ++i) 49017bcd64ebSJulian Wiedmann queue_start_poll[i] = qeth_qdio_start_poll; 49020da9581dSEinar Lueck 49030da9581dSEinar Lueck qeth_qdio_establish_cq(card, in_sbal_ptrs, queue_start_poll); 4904104ea556Sfrank.blaschka@de.ibm.com 49054a71df50SFrank Blaschka out_sbal_ptrs = 49066396bb22SKees Cook kcalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q, 49076396bb22SKees Cook sizeof(void *), 49086396bb22SKees Cook GFP_KERNEL); 49094a71df50SFrank Blaschka if (!out_sbal_ptrs) { 4910104ea556Sfrank.blaschka@de.ibm.com rc = -ENOMEM; 4911104ea556Sfrank.blaschka@de.ibm.com goto out_free_queue_start_poll; 49124a71df50SFrank Blaschka } 49134a71df50SFrank Blaschka for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i) 49144a71df50SFrank Blaschka for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) { 49154a71df50SFrank Blaschka out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys( 49160da9581dSEinar Lueck card->qdio.out_qs[i]->bufs[j]->buffer); 49174a71df50SFrank Blaschka } 49184a71df50SFrank Blaschka 49194a71df50SFrank Blaschka memset(&init_data, 0, sizeof(struct qdio_initialize)); 49204a71df50SFrank Blaschka init_data.cdev = CARD_DDEV(card); 49214a71df50SFrank Blaschka init_data.q_format = qeth_get_qdio_q_format(card); 49224a71df50SFrank Blaschka init_data.qib_param_field_format = 0; 49234a71df50SFrank Blaschka init_data.qib_param_field = qib_param_field; 49240da9581dSEinar Lueck init_data.no_input_qs = card->qdio.no_in_queues; 49254a71df50SFrank Blaschka init_data.no_output_qs = card->qdio.no_out_queues; 49267bcd64ebSJulian Wiedmann init_data.input_handler = qeth_qdio_input_handler; 49277bcd64ebSJulian Wiedmann init_data.output_handler = qeth_qdio_output_handler; 4928e58b0d90SSteffen Maier init_data.queue_start_poll_array = queue_start_poll; 49294a71df50SFrank Blaschka init_data.int_parm = (unsigned long) card; 49304a71df50SFrank Blaschka init_data.input_sbal_addr_array = (void **) in_sbal_ptrs; 49314a71df50SFrank Blaschka init_data.output_sbal_addr_array = (void **) out_sbal_ptrs; 49320da9581dSEinar Lueck init_data.output_sbal_state_array = card->qdio.out_bufstates; 49333d6c76ffSJan Glauber init_data.scan_threshold = 49340fa81cd4SStefan Raspl (card->info.type == QETH_CARD_TYPE_IQD) ? 1 : 32; 49354a71df50SFrank Blaschka 49364a71df50SFrank Blaschka if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED, 49374a71df50SFrank Blaschka QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) { 4938cc961d40SJan Glauber rc = qdio_allocate(&init_data); 4939cc961d40SJan Glauber if (rc) { 49404a71df50SFrank Blaschka atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); 4941cc961d40SJan Glauber goto out; 49424a71df50SFrank Blaschka } 4943cc961d40SJan Glauber rc = qdio_establish(&init_data); 4944cc961d40SJan Glauber if (rc) { 4945cc961d40SJan Glauber atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); 4946cc961d40SJan Glauber qdio_free(CARD_DDEV(card)); 4947cc961d40SJan Glauber } 4948cc961d40SJan Glauber } 49490da9581dSEinar Lueck 49500da9581dSEinar Lueck switch (card->options.cq) { 49510da9581dSEinar Lueck case QETH_CQ_ENABLED: 49520da9581dSEinar Lueck dev_info(&card->gdev->dev, "Completion Queue support enabled"); 49530da9581dSEinar Lueck break; 49540da9581dSEinar Lueck case QETH_CQ_DISABLED: 49550da9581dSEinar Lueck dev_info(&card->gdev->dev, "Completion Queue support disabled"); 49560da9581dSEinar Lueck break; 49570da9581dSEinar Lueck default: 49580da9581dSEinar Lueck break; 49590da9581dSEinar Lueck } 4960cc961d40SJan Glauber out: 49614a71df50SFrank Blaschka kfree(out_sbal_ptrs); 4962104ea556Sfrank.blaschka@de.ibm.com out_free_queue_start_poll: 4963104ea556Sfrank.blaschka@de.ibm.com kfree(queue_start_poll); 4964104ea556Sfrank.blaschka@de.ibm.com out_free_in_sbals: 49654a71df50SFrank Blaschka kfree(in_sbal_ptrs); 4966104ea556Sfrank.blaschka@de.ibm.com out_free_qib_param: 49674a71df50SFrank Blaschka kfree(qib_param_field); 4968104ea556Sfrank.blaschka@de.ibm.com out_free_nothing: 49694a71df50SFrank Blaschka return rc; 49704a71df50SFrank Blaschka } 49714a71df50SFrank Blaschka 49724a71df50SFrank Blaschka static void qeth_core_free_card(struct qeth_card *card) 49734a71df50SFrank Blaschka { 4974d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "freecrd"); 4975d11ba0c4SPeter Tiedemann QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); 49764a71df50SFrank Blaschka qeth_clean_channel(&card->read); 49774a71df50SFrank Blaschka qeth_clean_channel(&card->write); 4978f15cdaf2SJulian Wiedmann qeth_clean_channel(&card->data); 4979c0a2e4d1SJulian Wiedmann destroy_workqueue(card->event_wq); 49804a71df50SFrank Blaschka qeth_free_qdio_buffers(card); 49816bcac508SMartin Schwidefsky unregister_service_level(&card->qeth_service_level); 4982a2eb0ad5SJulian Wiedmann dev_set_drvdata(&card->gdev->dev, NULL); 49834a71df50SFrank Blaschka kfree(card); 49844a71df50SFrank Blaschka } 49854a71df50SFrank Blaschka 4986395672e0SStefan Raspl void qeth_trace_features(struct qeth_card *card) 4987395672e0SStefan Raspl { 4988395672e0SStefan Raspl QETH_CARD_TEXT(card, 2, "features"); 49894d7def2aSThomas Richter QETH_CARD_HEX(card, 2, &card->options.ipa4, sizeof(card->options.ipa4)); 49904d7def2aSThomas Richter QETH_CARD_HEX(card, 2, &card->options.ipa6, sizeof(card->options.ipa6)); 49914d7def2aSThomas Richter QETH_CARD_HEX(card, 2, &card->options.adp, sizeof(card->options.adp)); 49924d7def2aSThomas Richter QETH_CARD_HEX(card, 2, &card->info.diagass_support, 49934d7def2aSThomas Richter sizeof(card->info.diagass_support)); 4994395672e0SStefan Raspl } 4995395672e0SStefan Raspl EXPORT_SYMBOL_GPL(qeth_trace_features); 4996395672e0SStefan Raspl 49974a71df50SFrank Blaschka static struct ccw_device_id qeth_ids[] = { 49985113fec0SUrsula Braun {CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01), 49995113fec0SUrsula Braun .driver_info = QETH_CARD_TYPE_OSD}, 50005113fec0SUrsula Braun {CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05), 50015113fec0SUrsula Braun .driver_info = QETH_CARD_TYPE_IQD}, 50025113fec0SUrsula Braun {CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06), 50035113fec0SUrsula Braun .driver_info = QETH_CARD_TYPE_OSN}, 50045113fec0SUrsula Braun {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03), 50055113fec0SUrsula Braun .driver_info = QETH_CARD_TYPE_OSM}, 50065113fec0SUrsula Braun {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02), 50075113fec0SUrsula Braun .driver_info = QETH_CARD_TYPE_OSX}, 50084a71df50SFrank Blaschka {}, 50094a71df50SFrank Blaschka }; 50104a71df50SFrank Blaschka MODULE_DEVICE_TABLE(ccw, qeth_ids); 50114a71df50SFrank Blaschka 50124a71df50SFrank Blaschka static struct ccw_driver qeth_ccw_driver = { 50133bda058bSSebastian Ott .driver = { 50143e70b3b8SSebastian Ott .owner = THIS_MODULE, 50154a71df50SFrank Blaschka .name = "qeth", 50163bda058bSSebastian Ott }, 50174a71df50SFrank Blaschka .ids = qeth_ids, 50184a71df50SFrank Blaschka .probe = ccwgroup_probe_ccwdev, 50194a71df50SFrank Blaschka .remove = ccwgroup_remove_ccwdev, 50204a71df50SFrank Blaschka }; 50214a71df50SFrank Blaschka 50229fae5c3bSJulian Wiedmann int qeth_core_hardsetup_card(struct qeth_card *card, bool *carrier_ok) 50234a71df50SFrank Blaschka { 50246ebb7f8dSStefan Raspl int retries = 3; 50254a71df50SFrank Blaschka int rc; 50264a71df50SFrank Blaschka 5027d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "hrdsetup"); 50284a71df50SFrank Blaschka atomic_set(&card->force_alloc_skb, 0); 5029725b9c04SSebastian Ott qeth_update_from_chp_desc(card); 50304a71df50SFrank Blaschka retry: 50316ebb7f8dSStefan Raspl if (retries < 3) 5032e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "Retrying to do IDX activates on device %x.\n", 5033e19e5be8SJulian Wiedmann CARD_DEVID(card)); 503422ae2790SUrsula Braun rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD); 50354a71df50SFrank Blaschka ccw_device_set_offline(CARD_DDEV(card)); 50364a71df50SFrank Blaschka ccw_device_set_offline(CARD_WDEV(card)); 50374a71df50SFrank Blaschka ccw_device_set_offline(CARD_RDEV(card)); 503822ae2790SUrsula Braun qdio_free(CARD_DDEV(card)); 5039aa909224SUrsula Braun rc = ccw_device_set_online(CARD_RDEV(card)); 5040aa909224SUrsula Braun if (rc) 5041aa909224SUrsula Braun goto retriable; 5042aa909224SUrsula Braun rc = ccw_device_set_online(CARD_WDEV(card)); 5043aa909224SUrsula Braun if (rc) 5044aa909224SUrsula Braun goto retriable; 5045aa909224SUrsula Braun rc = ccw_device_set_online(CARD_DDEV(card)); 5046aa909224SUrsula Braun if (rc) 5047aa909224SUrsula Braun goto retriable; 5048aa909224SUrsula Braun retriable: 50494a71df50SFrank Blaschka if (rc == -ERESTARTSYS) { 5050d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "break1"); 50514a71df50SFrank Blaschka return rc; 50524a71df50SFrank Blaschka } else if (rc) { 5053d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 50546ebb7f8dSStefan Raspl if (--retries < 0) 50554a71df50SFrank Blaschka goto out; 50564a71df50SFrank Blaschka else 50574a71df50SFrank Blaschka goto retry; 50584a71df50SFrank Blaschka } 5059d0ff1f52SUrsula Braun qeth_determine_capabilities(card); 50604a71df50SFrank Blaschka qeth_init_tokens(card); 50614a71df50SFrank Blaschka qeth_init_func_level(card); 50628d908eb0SJulian Wiedmann rc = qeth_idx_activate_channel(card, &card->read, qeth_idx_read_cb); 50634a71df50SFrank Blaschka if (rc == -ERESTARTSYS) { 5064d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "break2"); 50654a71df50SFrank Blaschka return rc; 50664a71df50SFrank Blaschka } else if (rc) { 5067d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); 50684a71df50SFrank Blaschka if (--retries < 0) 50694a71df50SFrank Blaschka goto out; 50704a71df50SFrank Blaschka else 50714a71df50SFrank Blaschka goto retry; 50724a71df50SFrank Blaschka } 50738d908eb0SJulian Wiedmann rc = qeth_idx_activate_channel(card, &card->write, qeth_idx_write_cb); 50744a71df50SFrank Blaschka if (rc == -ERESTARTSYS) { 5075d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "break3"); 50764a71df50SFrank Blaschka return rc; 50774a71df50SFrank Blaschka } else if (rc) { 5078d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); 50794a71df50SFrank Blaschka if (--retries < 0) 50804a71df50SFrank Blaschka goto out; 50814a71df50SFrank Blaschka else 50824a71df50SFrank Blaschka goto retry; 50834a71df50SFrank Blaschka } 5084908abbb5SUrsula Braun card->read_or_write_problem = 0; 50854a71df50SFrank Blaschka rc = qeth_mpc_initialize(card); 50864a71df50SFrank Blaschka if (rc) { 5087d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); 50884a71df50SFrank Blaschka goto out; 50894a71df50SFrank Blaschka } 50901da74b1cSFrank Blaschka 509110340510SJulian Wiedmann rc = qeth_send_startlan(card); 509210340510SJulian Wiedmann if (rc) { 509310340510SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); 50944b7ae122SJulian Wiedmann if (rc == -ENETDOWN) { 50954b7ae122SJulian Wiedmann dev_warn(&card->gdev->dev, "The LAN is offline\n"); 50969fae5c3bSJulian Wiedmann *carrier_ok = false; 509710340510SJulian Wiedmann } else { 509810340510SJulian Wiedmann goto out; 509910340510SJulian Wiedmann } 510091cc98f5SJulian Wiedmann } else { 51019fae5c3bSJulian Wiedmann *carrier_ok = true; 51029fae5c3bSJulian Wiedmann } 51039fae5c3bSJulian Wiedmann 51041da74b1cSFrank Blaschka card->options.ipa4.supported_funcs = 0; 51054d7def2aSThomas Richter card->options.ipa6.supported_funcs = 0; 51061da74b1cSFrank Blaschka card->options.adp.supported_funcs = 0; 5107b4d72c08SEugene Crosser card->options.sbp.supported_funcs = 0; 51081da74b1cSFrank Blaschka card->info.diagass_support = 0; 51091aec42bcSThomas Richter rc = qeth_query_ipassists(card, QETH_PROT_IPV4); 51101aec42bcSThomas Richter if (rc == -ENOMEM) 51111aec42bcSThomas Richter goto out; 5112ee75fb86SKittipon Meesompop if (qeth_is_supported(card, IPA_IPV6)) { 5113ee75fb86SKittipon Meesompop rc = qeth_query_ipassists(card, QETH_PROT_IPV6); 5114ee75fb86SKittipon Meesompop if (rc == -ENOMEM) 5115ee75fb86SKittipon Meesompop goto out; 5116ee75fb86SKittipon Meesompop } 51171aec42bcSThomas Richter if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) { 51181aec42bcSThomas Richter rc = qeth_query_setadapterparms(card); 51191aec42bcSThomas Richter if (rc < 0) { 512010340510SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc); 51211aec42bcSThomas Richter goto out; 51221aec42bcSThomas Richter } 51231aec42bcSThomas Richter } 51241aec42bcSThomas Richter if (qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) { 51251aec42bcSThomas Richter rc = qeth_query_setdiagass(card); 51261aec42bcSThomas Richter if (rc < 0) { 512710340510SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc); 51281aec42bcSThomas Richter goto out; 51291aec42bcSThomas Richter } 51301aec42bcSThomas Richter } 51314a71df50SFrank Blaschka return 0; 51324a71df50SFrank Blaschka out: 513374eacdb9SFrank Blaschka dev_warn(&card->gdev->dev, "The qeth device driver failed to recover " 513474eacdb9SFrank Blaschka "an error on the device\n"); 5135e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "Initialization for device %x failed in hardsetup! rc=%d\n", 5136e19e5be8SJulian Wiedmann CARD_DEVID(card), rc); 51374a71df50SFrank Blaschka return rc; 51384a71df50SFrank Blaschka } 51394a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card); 51404a71df50SFrank Blaschka 51418d68af6aSJulian Wiedmann static void qeth_create_skb_frag(struct qdio_buffer_element *element, 51428d68af6aSJulian Wiedmann struct sk_buff *skb, int offset, int data_len) 51434a71df50SFrank Blaschka { 51444a71df50SFrank Blaschka struct page *page = virt_to_page(element->addr); 5145b6f72f96SJulian Wiedmann unsigned int next_frag; 5146b6f72f96SJulian Wiedmann 51478d68af6aSJulian Wiedmann /* first fill the linear space */ 51488d68af6aSJulian Wiedmann if (!skb->len) { 51498d68af6aSJulian Wiedmann unsigned int linear = min(data_len, skb_tailroom(skb)); 5150b3332930SFrank Blaschka 51518d68af6aSJulian Wiedmann skb_put_data(skb, element->addr + offset, linear); 51528d68af6aSJulian Wiedmann data_len -= linear; 51538d68af6aSJulian Wiedmann if (!data_len) 51548d68af6aSJulian Wiedmann return; 51558d68af6aSJulian Wiedmann offset += linear; 5156b6f72f96SJulian Wiedmann /* fall through to add page frag for remaining data */ 51574a71df50SFrank Blaschka } 51584a71df50SFrank Blaschka 51598d68af6aSJulian Wiedmann next_frag = skb_shinfo(skb)->nr_frags; 51604a71df50SFrank Blaschka get_page(page); 51618d68af6aSJulian Wiedmann skb_add_rx_frag(skb, next_frag, page, offset, data_len, data_len); 51624a71df50SFrank Blaschka } 51634a71df50SFrank Blaschka 5164bca51650SThomas Richter static inline int qeth_is_last_sbale(struct qdio_buffer_element *sbale) 5165bca51650SThomas Richter { 5166bca51650SThomas Richter return (sbale->eflags & SBAL_EFLAGS_LAST_ENTRY); 5167bca51650SThomas Richter } 5168bca51650SThomas Richter 51694a71df50SFrank Blaschka struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card, 5170b3332930SFrank Blaschka struct qeth_qdio_buffer *qethbuffer, 51714a71df50SFrank Blaschka struct qdio_buffer_element **__element, int *__offset, 51724a71df50SFrank Blaschka struct qeth_hdr **hdr) 51734a71df50SFrank Blaschka { 51744a71df50SFrank Blaschka struct qdio_buffer_element *element = *__element; 5175b3332930SFrank Blaschka struct qdio_buffer *buffer = qethbuffer->buffer; 51764a71df50SFrank Blaschka int offset = *__offset; 51778d68af6aSJulian Wiedmann struct sk_buff *skb; 517876b11f8eSUrsula Braun int skb_len = 0; 51794a71df50SFrank Blaschka void *data_ptr; 51804a71df50SFrank Blaschka int data_len; 51814a71df50SFrank Blaschka int headroom = 0; 51824a71df50SFrank Blaschka int use_rx_sg = 0; 51834a71df50SFrank Blaschka 51844a71df50SFrank Blaschka /* qeth_hdr must not cross element boundaries */ 5185864c17c3SJulian Wiedmann while (element->length < offset + sizeof(struct qeth_hdr)) { 51864a71df50SFrank Blaschka if (qeth_is_last_sbale(element)) 51874a71df50SFrank Blaschka return NULL; 51884a71df50SFrank Blaschka element++; 51894a71df50SFrank Blaschka offset = 0; 51904a71df50SFrank Blaschka } 51914a71df50SFrank Blaschka *hdr = element->addr + offset; 51924a71df50SFrank Blaschka 51934a71df50SFrank Blaschka offset += sizeof(struct qeth_hdr); 519476b11f8eSUrsula Braun switch ((*hdr)->hdr.l2.id) { 519576b11f8eSUrsula Braun case QETH_HEADER_TYPE_LAYER2: 51964a71df50SFrank Blaschka skb_len = (*hdr)->hdr.l2.pkt_length; 519776b11f8eSUrsula Braun break; 519876b11f8eSUrsula Braun case QETH_HEADER_TYPE_LAYER3: 51994a71df50SFrank Blaschka skb_len = (*hdr)->hdr.l3.length; 5200b403e685SFrank Blaschka headroom = ETH_HLEN; 520176b11f8eSUrsula Braun break; 520276b11f8eSUrsula Braun case QETH_HEADER_TYPE_OSN: 520376b11f8eSUrsula Braun skb_len = (*hdr)->hdr.osn.pdu_length; 520476b11f8eSUrsula Braun headroom = sizeof(struct qeth_hdr); 520576b11f8eSUrsula Braun break; 520676b11f8eSUrsula Braun default: 520776b11f8eSUrsula Braun break; 52084a71df50SFrank Blaschka } 52094a71df50SFrank Blaschka 52104a71df50SFrank Blaschka if (!skb_len) 52114a71df50SFrank Blaschka return NULL; 52124a71df50SFrank Blaschka 5213b3332930SFrank Blaschka if (((skb_len >= card->options.rx_sg_cb) && 52144a71df50SFrank Blaschka (!(card->info.type == QETH_CARD_TYPE_OSN)) && 5215b3332930SFrank Blaschka (!atomic_read(&card->force_alloc_skb))) || 52168d68af6aSJulian Wiedmann (card->options.cq == QETH_CQ_ENABLED)) 52174a71df50SFrank Blaschka use_rx_sg = 1; 52188d68af6aSJulian Wiedmann 52198d68af6aSJulian Wiedmann if (use_rx_sg && qethbuffer->rx_skb) { 52208d68af6aSJulian Wiedmann /* QETH_CQ_ENABLED only: */ 52218d68af6aSJulian Wiedmann skb = qethbuffer->rx_skb; 52228d68af6aSJulian Wiedmann qethbuffer->rx_skb = NULL; 52234a71df50SFrank Blaschka } else { 52248d68af6aSJulian Wiedmann unsigned int linear = (use_rx_sg) ? QETH_RX_PULL_LEN : skb_len; 52258d68af6aSJulian Wiedmann 522637cf05d2SJulian Wiedmann skb = napi_alloc_skb(&card->napi, linear + headroom); 52278d68af6aSJulian Wiedmann } 52284a71df50SFrank Blaschka if (!skb) 52294a71df50SFrank Blaschka goto no_mem; 52304a71df50SFrank Blaschka if (headroom) 52314a71df50SFrank Blaschka skb_reserve(skb, headroom); 52324a71df50SFrank Blaschka 52334a71df50SFrank Blaschka data_ptr = element->addr + offset; 52344a71df50SFrank Blaschka while (skb_len) { 52354a71df50SFrank Blaschka data_len = min(skb_len, (int)(element->length - offset)); 52364a71df50SFrank Blaschka if (data_len) { 52378d68af6aSJulian Wiedmann if (use_rx_sg) 52388d68af6aSJulian Wiedmann qeth_create_skb_frag(element, skb, offset, 52398d68af6aSJulian Wiedmann data_len); 52408d68af6aSJulian Wiedmann else 524159ae1d12SJohannes Berg skb_put_data(skb, data_ptr, data_len); 52424a71df50SFrank Blaschka } 52434a71df50SFrank Blaschka skb_len -= data_len; 52444a71df50SFrank Blaschka if (skb_len) { 52454a71df50SFrank Blaschka if (qeth_is_last_sbale(element)) { 5246847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "unexeob"); 5247efd5d9a4SCarsten Otte QETH_CARD_HEX(card, 2, buffer, sizeof(void *)); 52484a71df50SFrank Blaschka dev_kfree_skb_any(skb); 52494a71df50SFrank Blaschka card->stats.rx_errors++; 52504a71df50SFrank Blaschka return NULL; 52514a71df50SFrank Blaschka } 52524a71df50SFrank Blaschka element++; 52534a71df50SFrank Blaschka offset = 0; 52544a71df50SFrank Blaschka data_ptr = element->addr; 52554a71df50SFrank Blaschka } else { 52564a71df50SFrank Blaschka offset += data_len; 52574a71df50SFrank Blaschka } 52584a71df50SFrank Blaschka } 52594a71df50SFrank Blaschka *__element = element; 52604a71df50SFrank Blaschka *__offset = offset; 52614a71df50SFrank Blaschka if (use_rx_sg && card->options.performance_stats) { 52624a71df50SFrank Blaschka card->perf_stats.sg_skbs_rx++; 52634a71df50SFrank Blaschka card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags; 52644a71df50SFrank Blaschka } 52654a71df50SFrank Blaschka return skb; 52664a71df50SFrank Blaschka no_mem: 52674a71df50SFrank Blaschka if (net_ratelimit()) { 5268847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "noskbmem"); 52694a71df50SFrank Blaschka } 52704a71df50SFrank Blaschka card->stats.rx_dropped++; 52714a71df50SFrank Blaschka return NULL; 52724a71df50SFrank Blaschka } 52734a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_core_get_next_skb); 52744a71df50SFrank Blaschka 5275d73ef324SJulian Wiedmann int qeth_poll(struct napi_struct *napi, int budget) 5276d73ef324SJulian Wiedmann { 5277d73ef324SJulian Wiedmann struct qeth_card *card = container_of(napi, struct qeth_card, napi); 5278d73ef324SJulian Wiedmann int work_done = 0; 5279d73ef324SJulian Wiedmann struct qeth_qdio_buffer *buffer; 5280d73ef324SJulian Wiedmann int done; 5281d73ef324SJulian Wiedmann int new_budget = budget; 5282d73ef324SJulian Wiedmann 5283d73ef324SJulian Wiedmann while (1) { 5284d73ef324SJulian Wiedmann if (!card->rx.b_count) { 5285d73ef324SJulian Wiedmann card->rx.qdio_err = 0; 5286d73ef324SJulian Wiedmann card->rx.b_count = qdio_get_next_buffers( 5287d73ef324SJulian Wiedmann card->data.ccwdev, 0, &card->rx.b_index, 5288d73ef324SJulian Wiedmann &card->rx.qdio_err); 5289d73ef324SJulian Wiedmann if (card->rx.b_count <= 0) { 5290d73ef324SJulian Wiedmann card->rx.b_count = 0; 5291d73ef324SJulian Wiedmann break; 5292d73ef324SJulian Wiedmann } 5293d73ef324SJulian Wiedmann card->rx.b_element = 5294d73ef324SJulian Wiedmann &card->qdio.in_q->bufs[card->rx.b_index] 5295d73ef324SJulian Wiedmann .buffer->element[0]; 5296d73ef324SJulian Wiedmann card->rx.e_offset = 0; 5297d73ef324SJulian Wiedmann } 5298d73ef324SJulian Wiedmann 5299d73ef324SJulian Wiedmann while (card->rx.b_count) { 5300d73ef324SJulian Wiedmann buffer = &card->qdio.in_q->bufs[card->rx.b_index]; 5301d73ef324SJulian Wiedmann if (!(card->rx.qdio_err && 5302d73ef324SJulian Wiedmann qeth_check_qdio_errors(card, buffer->buffer, 5303d73ef324SJulian Wiedmann card->rx.qdio_err, "qinerr"))) 5304d73ef324SJulian Wiedmann work_done += 5305d73ef324SJulian Wiedmann card->discipline->process_rx_buffer( 5306d73ef324SJulian Wiedmann card, new_budget, &done); 5307d73ef324SJulian Wiedmann else 5308d73ef324SJulian Wiedmann done = 1; 5309d73ef324SJulian Wiedmann 5310d73ef324SJulian Wiedmann if (done) { 5311d73ef324SJulian Wiedmann if (card->options.performance_stats) 5312d73ef324SJulian Wiedmann card->perf_stats.bufs_rec++; 5313d73ef324SJulian Wiedmann qeth_put_buffer_pool_entry(card, 5314d73ef324SJulian Wiedmann buffer->pool_entry); 5315d73ef324SJulian Wiedmann qeth_queue_input_buffer(card, card->rx.b_index); 5316d73ef324SJulian Wiedmann card->rx.b_count--; 5317d73ef324SJulian Wiedmann if (card->rx.b_count) { 5318d73ef324SJulian Wiedmann card->rx.b_index = 5319d73ef324SJulian Wiedmann (card->rx.b_index + 1) % 5320d73ef324SJulian Wiedmann QDIO_MAX_BUFFERS_PER_Q; 5321d73ef324SJulian Wiedmann card->rx.b_element = 5322d73ef324SJulian Wiedmann &card->qdio.in_q 5323d73ef324SJulian Wiedmann ->bufs[card->rx.b_index] 5324d73ef324SJulian Wiedmann .buffer->element[0]; 5325d73ef324SJulian Wiedmann card->rx.e_offset = 0; 5326d73ef324SJulian Wiedmann } 5327d73ef324SJulian Wiedmann } 5328d73ef324SJulian Wiedmann 5329d73ef324SJulian Wiedmann if (work_done >= budget) 5330d73ef324SJulian Wiedmann goto out; 5331d73ef324SJulian Wiedmann else 5332d73ef324SJulian Wiedmann new_budget = budget - work_done; 5333d73ef324SJulian Wiedmann } 5334d73ef324SJulian Wiedmann } 5335d73ef324SJulian Wiedmann 5336978759e8SJulian Wiedmann napi_complete_done(napi, work_done); 5337d73ef324SJulian Wiedmann if (qdio_start_irq(card->data.ccwdev, 0)) 5338d73ef324SJulian Wiedmann napi_schedule(&card->napi); 5339d73ef324SJulian Wiedmann out: 5340d73ef324SJulian Wiedmann return work_done; 5341d73ef324SJulian Wiedmann } 5342d73ef324SJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_poll); 5343d73ef324SJulian Wiedmann 5344ad3cbf61SJulian Wiedmann static int qeth_setassparms_inspect_rc(struct qeth_ipa_cmd *cmd) 5345ad3cbf61SJulian Wiedmann { 5346ad3cbf61SJulian Wiedmann if (!cmd->hdr.return_code) 5347ad3cbf61SJulian Wiedmann cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code; 5348ad3cbf61SJulian Wiedmann return cmd->hdr.return_code; 5349ad3cbf61SJulian Wiedmann } 5350ad3cbf61SJulian Wiedmann 53514666d7fbSJulian Wiedmann static int qeth_setassparms_get_caps_cb(struct qeth_card *card, 53524666d7fbSJulian Wiedmann struct qeth_reply *reply, 53534666d7fbSJulian Wiedmann unsigned long data) 53544666d7fbSJulian Wiedmann { 53554666d7fbSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 53564666d7fbSJulian Wiedmann struct qeth_ipa_caps *caps = reply->param; 53574666d7fbSJulian Wiedmann 53584666d7fbSJulian Wiedmann if (qeth_setassparms_inspect_rc(cmd)) 5359742d4d40SJulian Wiedmann return -EIO; 53604666d7fbSJulian Wiedmann 53614666d7fbSJulian Wiedmann caps->supported = cmd->data.setassparms.data.caps.supported; 53624666d7fbSJulian Wiedmann caps->enabled = cmd->data.setassparms.data.caps.enabled; 53634666d7fbSJulian Wiedmann return 0; 53644666d7fbSJulian Wiedmann } 53654666d7fbSJulian Wiedmann 53668f43fb00SThomas Richter int qeth_setassparms_cb(struct qeth_card *card, 53674d7def2aSThomas Richter struct qeth_reply *reply, unsigned long data) 53684d7def2aSThomas Richter { 5369742d4d40SJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 53704d7def2aSThomas Richter 53714d7def2aSThomas Richter QETH_CARD_TEXT(card, 4, "defadpcb"); 53724d7def2aSThomas Richter 5373742d4d40SJulian Wiedmann if (cmd->hdr.return_code) 5374742d4d40SJulian Wiedmann return -EIO; 5375742d4d40SJulian Wiedmann 53764d7def2aSThomas Richter cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code; 53774d7def2aSThomas Richter if (cmd->hdr.prot_version == QETH_PROT_IPV4) 53784d7def2aSThomas Richter card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled; 53794d7def2aSThomas Richter if (cmd->hdr.prot_version == QETH_PROT_IPV6) 53804d7def2aSThomas Richter card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled; 53814d7def2aSThomas Richter return 0; 53824d7def2aSThomas Richter } 53838f43fb00SThomas Richter EXPORT_SYMBOL_GPL(qeth_setassparms_cb); 53844d7def2aSThomas Richter 5385b475e316SThomas Richter struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *card, 53864d7def2aSThomas Richter enum qeth_ipa_funcs ipa_func, 53874d7def2aSThomas Richter __u16 cmd_code, __u16 len, 53884d7def2aSThomas Richter enum qeth_prot_versions prot) 53894d7def2aSThomas Richter { 53904d7def2aSThomas Richter struct qeth_cmd_buffer *iob; 53914d7def2aSThomas Richter struct qeth_ipa_cmd *cmd; 53924d7def2aSThomas Richter 53934d7def2aSThomas Richter QETH_CARD_TEXT(card, 4, "getasscm"); 53944d7def2aSThomas Richter iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot); 53954d7def2aSThomas Richter 53964d7def2aSThomas Richter if (iob) { 5397ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 53984d7def2aSThomas Richter cmd->data.setassparms.hdr.assist_no = ipa_func; 53994d7def2aSThomas Richter cmd->data.setassparms.hdr.length = 8 + len; 54004d7def2aSThomas Richter cmd->data.setassparms.hdr.command_code = cmd_code; 54014d7def2aSThomas Richter } 54024d7def2aSThomas Richter 54034d7def2aSThomas Richter return iob; 54044d7def2aSThomas Richter } 5405b475e316SThomas Richter EXPORT_SYMBOL_GPL(qeth_get_setassparms_cmd); 54064d7def2aSThomas Richter 5407a8155b00SKittipon Meesompop int qeth_send_simple_setassparms_prot(struct qeth_card *card, 54084d7def2aSThomas Richter enum qeth_ipa_funcs ipa_func, 5409a8155b00SKittipon Meesompop u16 cmd_code, long data, 5410a8155b00SKittipon Meesompop enum qeth_prot_versions prot) 54114d7def2aSThomas Richter { 54124d7def2aSThomas Richter int length = 0; 54134d7def2aSThomas Richter struct qeth_cmd_buffer *iob; 54144d7def2aSThomas Richter 5415a8155b00SKittipon Meesompop QETH_CARD_TEXT_(card, 4, "simassp%i", prot); 54164d7def2aSThomas Richter if (data) 54174d7def2aSThomas Richter length = sizeof(__u32); 5418a8155b00SKittipon Meesompop iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code, length, prot); 54194d7def2aSThomas Richter if (!iob) 54204d7def2aSThomas Richter return -ENOMEM; 54214fa55fa9SJulian Wiedmann 54224fa55fa9SJulian Wiedmann __ipa_cmd(iob)->data.setassparms.data.flags_32bit = (__u32) data; 54234fa55fa9SJulian Wiedmann return qeth_send_ipa_cmd(card, iob, qeth_setassparms_cb, NULL); 54244d7def2aSThomas Richter } 5425a8155b00SKittipon Meesompop EXPORT_SYMBOL_GPL(qeth_send_simple_setassparms_prot); 54264d7def2aSThomas Richter 54274a71df50SFrank Blaschka static void qeth_unregister_dbf_views(void) 54284a71df50SFrank Blaschka { 5429d11ba0c4SPeter Tiedemann int x; 5430d11ba0c4SPeter Tiedemann for (x = 0; x < QETH_DBF_INFOS; x++) { 5431d11ba0c4SPeter Tiedemann debug_unregister(qeth_dbf[x].id); 5432d11ba0c4SPeter Tiedemann qeth_dbf[x].id = NULL; 5433d11ba0c4SPeter Tiedemann } 54344a71df50SFrank Blaschka } 54354a71df50SFrank Blaschka 54368e96c51cSCarsten Otte void qeth_dbf_longtext(debug_info_t *id, int level, char *fmt, ...) 5437cd023216SPeter Tiedemann { 5438cd023216SPeter Tiedemann char dbf_txt_buf[32]; 5439345aa66eSPeter Tiedemann va_list args; 5440cd023216SPeter Tiedemann 54418e6a8285SHendrik Brueckner if (!debug_level_enabled(id, level)) 5442cd023216SPeter Tiedemann return; 5443345aa66eSPeter Tiedemann va_start(args, fmt); 5444345aa66eSPeter Tiedemann vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args); 5445345aa66eSPeter Tiedemann va_end(args); 54468e96c51cSCarsten Otte debug_text_event(id, level, dbf_txt_buf); 5447cd023216SPeter Tiedemann } 5448cd023216SPeter Tiedemann EXPORT_SYMBOL_GPL(qeth_dbf_longtext); 5449cd023216SPeter Tiedemann 54504a71df50SFrank Blaschka static int qeth_register_dbf_views(void) 54514a71df50SFrank Blaschka { 5452d11ba0c4SPeter Tiedemann int ret; 5453d11ba0c4SPeter Tiedemann int x; 54544a71df50SFrank Blaschka 5455d11ba0c4SPeter Tiedemann for (x = 0; x < QETH_DBF_INFOS; x++) { 5456d11ba0c4SPeter Tiedemann /* register the areas */ 5457d11ba0c4SPeter Tiedemann qeth_dbf[x].id = debug_register(qeth_dbf[x].name, 5458d11ba0c4SPeter Tiedemann qeth_dbf[x].pages, 5459d11ba0c4SPeter Tiedemann qeth_dbf[x].areas, 5460d11ba0c4SPeter Tiedemann qeth_dbf[x].len); 5461d11ba0c4SPeter Tiedemann if (qeth_dbf[x].id == NULL) { 54624a71df50SFrank Blaschka qeth_unregister_dbf_views(); 54634a71df50SFrank Blaschka return -ENOMEM; 54644a71df50SFrank Blaschka } 54654a71df50SFrank Blaschka 5466d11ba0c4SPeter Tiedemann /* register a view */ 5467d11ba0c4SPeter Tiedemann ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view); 5468d11ba0c4SPeter Tiedemann if (ret) { 5469d11ba0c4SPeter Tiedemann qeth_unregister_dbf_views(); 5470d11ba0c4SPeter Tiedemann return ret; 5471d11ba0c4SPeter Tiedemann } 54724a71df50SFrank Blaschka 5473d11ba0c4SPeter Tiedemann /* set a passing level */ 5474d11ba0c4SPeter Tiedemann debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level); 5475d11ba0c4SPeter Tiedemann } 54764a71df50SFrank Blaschka 54774a71df50SFrank Blaschka return 0; 54784a71df50SFrank Blaschka } 54794a71df50SFrank Blaschka 5480a70fee3bSJulian Wiedmann static DEFINE_MUTEX(qeth_mod_mutex); /* for synchronized module loading */ 5481a70fee3bSJulian Wiedmann 54824a71df50SFrank Blaschka int qeth_core_load_discipline(struct qeth_card *card, 54834a71df50SFrank Blaschka enum qeth_discipline_id discipline) 54844a71df50SFrank Blaschka { 54852022e00cSFrank Blaschka mutex_lock(&qeth_mod_mutex); 54864a71df50SFrank Blaschka switch (discipline) { 54874a71df50SFrank Blaschka case QETH_DISCIPLINE_LAYER3: 5488c041f2d4SSebastian Ott card->discipline = try_then_request_module( 5489c041f2d4SSebastian Ott symbol_get(qeth_l3_discipline), "qeth_l3"); 54904a71df50SFrank Blaschka break; 54914a71df50SFrank Blaschka case QETH_DISCIPLINE_LAYER2: 5492c041f2d4SSebastian Ott card->discipline = try_then_request_module( 5493c041f2d4SSebastian Ott symbol_get(qeth_l2_discipline), "qeth_l2"); 54944a71df50SFrank Blaschka break; 5495c70eb09dSJulian Wiedmann default: 5496c70eb09dSJulian Wiedmann break; 54974a71df50SFrank Blaschka } 5498a70fee3bSJulian Wiedmann mutex_unlock(&qeth_mod_mutex); 5499c70eb09dSJulian Wiedmann 5500c041f2d4SSebastian Ott if (!card->discipline) { 550174eacdb9SFrank Blaschka dev_err(&card->gdev->dev, "There is no kernel module to " 550274eacdb9SFrank Blaschka "support discipline %d\n", discipline); 5503a70fee3bSJulian Wiedmann return -EINVAL; 55044a71df50SFrank Blaschka } 5505a70fee3bSJulian Wiedmann 5506c1a935f6SJulian Wiedmann card->options.layer = discipline; 5507a70fee3bSJulian Wiedmann return 0; 55084a71df50SFrank Blaschka } 55094a71df50SFrank Blaschka 55104a71df50SFrank Blaschka void qeth_core_free_discipline(struct qeth_card *card) 55114a71df50SFrank Blaschka { 55124fda3354SJulian Wiedmann if (IS_LAYER2(card)) 5513c041f2d4SSebastian Ott symbol_put(qeth_l2_discipline); 55144a71df50SFrank Blaschka else 5515c041f2d4SSebastian Ott symbol_put(qeth_l3_discipline); 5516c1a935f6SJulian Wiedmann card->options.layer = QETH_DISCIPLINE_UNDETERMINED; 5517c041f2d4SSebastian Ott card->discipline = NULL; 55184a71df50SFrank Blaschka } 55194a71df50SFrank Blaschka 55202d2ebb3eSJulian Wiedmann const struct device_type qeth_generic_devtype = { 5521b7169c51SSebastian Ott .name = "qeth_generic", 5522b7169c51SSebastian Ott .groups = qeth_generic_attr_groups, 5523b7169c51SSebastian Ott }; 55242d2ebb3eSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_generic_devtype); 55252d2ebb3eSJulian Wiedmann 5526b7169c51SSebastian Ott static const struct device_type qeth_osn_devtype = { 5527b7169c51SSebastian Ott .name = "qeth_osn", 5528b7169c51SSebastian Ott .groups = qeth_osn_attr_groups, 5529b7169c51SSebastian Ott }; 5530b7169c51SSebastian Ott 5531819dc537SStefan Raspl #define DBF_NAME_LEN 20 5532819dc537SStefan Raspl 5533819dc537SStefan Raspl struct qeth_dbf_entry { 5534819dc537SStefan Raspl char dbf_name[DBF_NAME_LEN]; 5535819dc537SStefan Raspl debug_info_t *dbf_info; 5536819dc537SStefan Raspl struct list_head dbf_list; 5537819dc537SStefan Raspl }; 5538819dc537SStefan Raspl 5539819dc537SStefan Raspl static LIST_HEAD(qeth_dbf_list); 5540819dc537SStefan Raspl static DEFINE_MUTEX(qeth_dbf_list_mutex); 5541819dc537SStefan Raspl 5542819dc537SStefan Raspl static debug_info_t *qeth_get_dbf_entry(char *name) 5543819dc537SStefan Raspl { 5544819dc537SStefan Raspl struct qeth_dbf_entry *entry; 5545819dc537SStefan Raspl debug_info_t *rc = NULL; 5546819dc537SStefan Raspl 5547819dc537SStefan Raspl mutex_lock(&qeth_dbf_list_mutex); 5548819dc537SStefan Raspl list_for_each_entry(entry, &qeth_dbf_list, dbf_list) { 5549819dc537SStefan Raspl if (strcmp(entry->dbf_name, name) == 0) { 5550819dc537SStefan Raspl rc = entry->dbf_info; 5551819dc537SStefan Raspl break; 5552819dc537SStefan Raspl } 5553819dc537SStefan Raspl } 5554819dc537SStefan Raspl mutex_unlock(&qeth_dbf_list_mutex); 5555819dc537SStefan Raspl return rc; 5556819dc537SStefan Raspl } 5557819dc537SStefan Raspl 5558819dc537SStefan Raspl static int qeth_add_dbf_entry(struct qeth_card *card, char *name) 5559819dc537SStefan Raspl { 5560819dc537SStefan Raspl struct qeth_dbf_entry *new_entry; 5561819dc537SStefan Raspl 5562819dc537SStefan Raspl card->debug = debug_register(name, 2, 1, 8); 5563819dc537SStefan Raspl if (!card->debug) { 5564819dc537SStefan Raspl QETH_DBF_TEXT_(SETUP, 2, "%s", "qcdbf"); 5565819dc537SStefan Raspl goto err; 5566819dc537SStefan Raspl } 5567819dc537SStefan Raspl if (debug_register_view(card->debug, &debug_hex_ascii_view)) 5568819dc537SStefan Raspl goto err_dbg; 5569819dc537SStefan Raspl new_entry = kzalloc(sizeof(struct qeth_dbf_entry), GFP_KERNEL); 5570819dc537SStefan Raspl if (!new_entry) 5571819dc537SStefan Raspl goto err_dbg; 5572819dc537SStefan Raspl strncpy(new_entry->dbf_name, name, DBF_NAME_LEN); 5573819dc537SStefan Raspl new_entry->dbf_info = card->debug; 5574819dc537SStefan Raspl mutex_lock(&qeth_dbf_list_mutex); 5575819dc537SStefan Raspl list_add(&new_entry->dbf_list, &qeth_dbf_list); 5576819dc537SStefan Raspl mutex_unlock(&qeth_dbf_list_mutex); 5577819dc537SStefan Raspl 5578819dc537SStefan Raspl return 0; 5579819dc537SStefan Raspl 5580819dc537SStefan Raspl err_dbg: 5581819dc537SStefan Raspl debug_unregister(card->debug); 5582819dc537SStefan Raspl err: 5583819dc537SStefan Raspl return -ENOMEM; 5584819dc537SStefan Raspl } 5585819dc537SStefan Raspl 5586819dc537SStefan Raspl static void qeth_clear_dbf_list(void) 5587819dc537SStefan Raspl { 5588819dc537SStefan Raspl struct qeth_dbf_entry *entry, *tmp; 5589819dc537SStefan Raspl 5590819dc537SStefan Raspl mutex_lock(&qeth_dbf_list_mutex); 5591819dc537SStefan Raspl list_for_each_entry_safe(entry, tmp, &qeth_dbf_list, dbf_list) { 5592819dc537SStefan Raspl list_del(&entry->dbf_list); 5593819dc537SStefan Raspl debug_unregister(entry->dbf_info); 5594819dc537SStefan Raspl kfree(entry); 5595819dc537SStefan Raspl } 5596819dc537SStefan Raspl mutex_unlock(&qeth_dbf_list_mutex); 5597819dc537SStefan Raspl } 5598819dc537SStefan Raspl 5599d3d1b205SJulian Wiedmann static struct net_device *qeth_alloc_netdev(struct qeth_card *card) 5600d3d1b205SJulian Wiedmann { 5601d3d1b205SJulian Wiedmann struct net_device *dev; 5602d3d1b205SJulian Wiedmann 5603d3d1b205SJulian Wiedmann switch (card->info.type) { 5604d3d1b205SJulian Wiedmann case QETH_CARD_TYPE_IQD: 5605d3d1b205SJulian Wiedmann dev = alloc_netdev(0, "hsi%d", NET_NAME_UNKNOWN, ether_setup); 5606d3d1b205SJulian Wiedmann break; 5607d3d1b205SJulian Wiedmann case QETH_CARD_TYPE_OSN: 5608d3d1b205SJulian Wiedmann dev = alloc_netdev(0, "osn%d", NET_NAME_UNKNOWN, ether_setup); 5609d3d1b205SJulian Wiedmann break; 5610d3d1b205SJulian Wiedmann default: 5611d3d1b205SJulian Wiedmann dev = alloc_etherdev(0); 5612d3d1b205SJulian Wiedmann } 5613d3d1b205SJulian Wiedmann 5614d3d1b205SJulian Wiedmann if (!dev) 5615d3d1b205SJulian Wiedmann return NULL; 5616d3d1b205SJulian Wiedmann 5617d3d1b205SJulian Wiedmann dev->ml_priv = card; 5618d3d1b205SJulian Wiedmann dev->watchdog_timeo = QETH_TX_TIMEOUT; 561972f219daSJulian Wiedmann dev->min_mtu = IS_OSN(card) ? 64 : 576; 56208ce7a9e0SJulian Wiedmann /* initialized when device first goes online: */ 56218ce7a9e0SJulian Wiedmann dev->max_mtu = 0; 56228ce7a9e0SJulian Wiedmann dev->mtu = 0; 5623d3d1b205SJulian Wiedmann SET_NETDEV_DEV(dev, &card->gdev->dev); 5624d3d1b205SJulian Wiedmann netif_carrier_off(dev); 56255f89eca5SJulian Wiedmann 5626d896ac62SJulian Wiedmann if (IS_OSN(card)) { 5627d896ac62SJulian Wiedmann dev->ethtool_ops = &qeth_osn_ethtool_ops; 5628d896ac62SJulian Wiedmann } else { 5629d896ac62SJulian Wiedmann dev->ethtool_ops = &qeth_ethtool_ops; 56305f89eca5SJulian Wiedmann dev->priv_flags &= ~IFF_TX_SKB_SHARING; 56315f89eca5SJulian Wiedmann dev->hw_features |= NETIF_F_SG; 56325f89eca5SJulian Wiedmann dev->vlan_features |= NETIF_F_SG; 563304db741dSJulian Wiedmann if (IS_IQD(card)) 563404db741dSJulian Wiedmann dev->features |= NETIF_F_SG; 56355f89eca5SJulian Wiedmann } 56365f89eca5SJulian Wiedmann 5637d3d1b205SJulian Wiedmann return dev; 5638d3d1b205SJulian Wiedmann } 5639d3d1b205SJulian Wiedmann 5640d3d1b205SJulian Wiedmann struct net_device *qeth_clone_netdev(struct net_device *orig) 5641d3d1b205SJulian Wiedmann { 5642d3d1b205SJulian Wiedmann struct net_device *clone = qeth_alloc_netdev(orig->ml_priv); 5643d3d1b205SJulian Wiedmann 5644d3d1b205SJulian Wiedmann if (!clone) 5645d3d1b205SJulian Wiedmann return NULL; 5646d3d1b205SJulian Wiedmann 5647d3d1b205SJulian Wiedmann clone->dev_port = orig->dev_port; 5648d3d1b205SJulian Wiedmann return clone; 5649d3d1b205SJulian Wiedmann } 5650d3d1b205SJulian Wiedmann 56514a71df50SFrank Blaschka static int qeth_core_probe_device(struct ccwgroup_device *gdev) 56524a71df50SFrank Blaschka { 56534a71df50SFrank Blaschka struct qeth_card *card; 56544a71df50SFrank Blaschka struct device *dev; 56554a71df50SFrank Blaschka int rc; 5656c70eb09dSJulian Wiedmann enum qeth_discipline_id enforced_disc; 5657819dc537SStefan Raspl char dbf_name[DBF_NAME_LEN]; 56584a71df50SFrank Blaschka 5659d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "probedev"); 56604a71df50SFrank Blaschka 56614a71df50SFrank Blaschka dev = &gdev->dev; 56624a71df50SFrank Blaschka if (!get_device(dev)) 56634a71df50SFrank Blaschka return -ENODEV; 56644a71df50SFrank Blaschka 56652a0217d5SKay Sievers QETH_DBF_TEXT_(SETUP, 2, "%s", dev_name(&gdev->dev)); 56664a71df50SFrank Blaschka 5667121ca39aSJulian Wiedmann card = qeth_alloc_card(gdev); 56684a71df50SFrank Blaschka if (!card) { 5669d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM); 56704a71df50SFrank Blaschka rc = -ENOMEM; 56714a71df50SFrank Blaschka goto err_dev; 56724a71df50SFrank Blaschka } 5673af039068SCarsten Otte 5674af039068SCarsten Otte snprintf(dbf_name, sizeof(dbf_name), "qeth_card_%s", 5675af039068SCarsten Otte dev_name(&gdev->dev)); 5676819dc537SStefan Raspl card->debug = qeth_get_dbf_entry(dbf_name); 5677af039068SCarsten Otte if (!card->debug) { 5678819dc537SStefan Raspl rc = qeth_add_dbf_entry(card, dbf_name); 5679819dc537SStefan Raspl if (rc) 5680af039068SCarsten Otte goto err_card; 5681af039068SCarsten Otte } 5682af039068SCarsten Otte 568395f4d8b7SJulian Wiedmann qeth_setup_card(card); 568495f4d8b7SJulian Wiedmann qeth_update_from_chp_desc(card); 56854a71df50SFrank Blaschka 5686d3d1b205SJulian Wiedmann card->dev = qeth_alloc_netdev(card); 5687778b1ac7SJulian Wiedmann if (!card->dev) { 5688778b1ac7SJulian Wiedmann rc = -ENOMEM; 5689d3d1b205SJulian Wiedmann goto err_card; 5690778b1ac7SJulian Wiedmann } 5691d3d1b205SJulian Wiedmann 5692c70eb09dSJulian Wiedmann qeth_determine_capabilities(card); 5693c70eb09dSJulian Wiedmann enforced_disc = qeth_enforce_discipline(card); 5694c70eb09dSJulian Wiedmann switch (enforced_disc) { 5695c70eb09dSJulian Wiedmann case QETH_DISCIPLINE_UNDETERMINED: 5696c70eb09dSJulian Wiedmann gdev->dev.type = &qeth_generic_devtype; 5697c70eb09dSJulian Wiedmann break; 5698c70eb09dSJulian Wiedmann default: 5699c70eb09dSJulian Wiedmann card->info.layer_enforced = true; 5700c70eb09dSJulian Wiedmann rc = qeth_core_load_discipline(card, enforced_disc); 57015113fec0SUrsula Braun if (rc) 5702d3d1b205SJulian Wiedmann goto err_load; 57032d2ebb3eSJulian Wiedmann 57042d2ebb3eSJulian Wiedmann gdev->dev.type = (card->info.type != QETH_CARD_TYPE_OSN) 57052d2ebb3eSJulian Wiedmann ? card->discipline->devtype 57062d2ebb3eSJulian Wiedmann : &qeth_osn_devtype; 5707c041f2d4SSebastian Ott rc = card->discipline->setup(card->gdev); 57085113fec0SUrsula Braun if (rc) 57095113fec0SUrsula Braun goto err_disc; 57102d2ebb3eSJulian Wiedmann break; 57114a71df50SFrank Blaschka } 57124a71df50SFrank Blaschka 57134a71df50SFrank Blaschka return 0; 57144a71df50SFrank Blaschka 57155113fec0SUrsula Braun err_disc: 57165113fec0SUrsula Braun qeth_core_free_discipline(card); 5717d3d1b205SJulian Wiedmann err_load: 5718d3d1b205SJulian Wiedmann free_netdev(card->dev); 57194a71df50SFrank Blaschka err_card: 57204a71df50SFrank Blaschka qeth_core_free_card(card); 57214a71df50SFrank Blaschka err_dev: 57224a71df50SFrank Blaschka put_device(dev); 57234a71df50SFrank Blaschka return rc; 57244a71df50SFrank Blaschka } 57254a71df50SFrank Blaschka 57264a71df50SFrank Blaschka static void qeth_core_remove_device(struct ccwgroup_device *gdev) 57274a71df50SFrank Blaschka { 57284a71df50SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 57294a71df50SFrank Blaschka 573028a7e4c9SUrsula Braun QETH_DBF_TEXT(SETUP, 2, "removedv"); 57314a71df50SFrank Blaschka 5732c041f2d4SSebastian Ott if (card->discipline) { 5733c041f2d4SSebastian Ott card->discipline->remove(gdev); 57349dc48cccSUrsula Braun qeth_core_free_discipline(card); 57359dc48cccSUrsula Braun } 57369dc48cccSUrsula Braun 5737d3d1b205SJulian Wiedmann free_netdev(card->dev); 57384a71df50SFrank Blaschka qeth_core_free_card(card); 57394a71df50SFrank Blaschka put_device(&gdev->dev); 57404a71df50SFrank Blaschka } 57414a71df50SFrank Blaschka 57424a71df50SFrank Blaschka static int qeth_core_set_online(struct ccwgroup_device *gdev) 57434a71df50SFrank Blaschka { 57444a71df50SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 57454a71df50SFrank Blaschka int rc = 0; 5746c70eb09dSJulian Wiedmann enum qeth_discipline_id def_discipline; 57474a71df50SFrank Blaschka 5748c041f2d4SSebastian Ott if (!card->discipline) { 57494a71df50SFrank Blaschka if (card->info.type == QETH_CARD_TYPE_IQD) 57504a71df50SFrank Blaschka def_discipline = QETH_DISCIPLINE_LAYER3; 57514a71df50SFrank Blaschka else 57524a71df50SFrank Blaschka def_discipline = QETH_DISCIPLINE_LAYER2; 57534a71df50SFrank Blaschka rc = qeth_core_load_discipline(card, def_discipline); 57544a71df50SFrank Blaschka if (rc) 57554a71df50SFrank Blaschka goto err; 5756c041f2d4SSebastian Ott rc = card->discipline->setup(card->gdev); 57579111e788SUrsula Braun if (rc) { 57589111e788SUrsula Braun qeth_core_free_discipline(card); 57594a71df50SFrank Blaschka goto err; 57604a71df50SFrank Blaschka } 57619111e788SUrsula Braun } 5762c041f2d4SSebastian Ott rc = card->discipline->set_online(gdev); 57634a71df50SFrank Blaschka err: 57644a71df50SFrank Blaschka return rc; 57654a71df50SFrank Blaschka } 57664a71df50SFrank Blaschka 57674a71df50SFrank Blaschka static int qeth_core_set_offline(struct ccwgroup_device *gdev) 57684a71df50SFrank Blaschka { 57694a71df50SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 5770c041f2d4SSebastian Ott return card->discipline->set_offline(gdev); 57714a71df50SFrank Blaschka } 57724a71df50SFrank Blaschka 57734a71df50SFrank Blaschka static void qeth_core_shutdown(struct ccwgroup_device *gdev) 57744a71df50SFrank Blaschka { 57754a71df50SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 577696d1bb53SJulian Wiedmann qeth_set_allowed_threads(card, 0, 1); 577796d1bb53SJulian Wiedmann if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap) 577896d1bb53SJulian Wiedmann qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); 577996d1bb53SJulian Wiedmann qeth_qdio_clear_card(card, 0); 578096d1bb53SJulian Wiedmann qeth_clear_qdio_buffers(card); 578196d1bb53SJulian Wiedmann qdio_free(CARD_DDEV(card)); 57824a71df50SFrank Blaschka } 57834a71df50SFrank Blaschka 5784bbcfcdc8SFrank Blaschka static int qeth_core_freeze(struct ccwgroup_device *gdev) 5785bbcfcdc8SFrank Blaschka { 5786bbcfcdc8SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 5787c041f2d4SSebastian Ott if (card->discipline && card->discipline->freeze) 5788c041f2d4SSebastian Ott return card->discipline->freeze(gdev); 5789bbcfcdc8SFrank Blaschka return 0; 5790bbcfcdc8SFrank Blaschka } 5791bbcfcdc8SFrank Blaschka 5792bbcfcdc8SFrank Blaschka static int qeth_core_thaw(struct ccwgroup_device *gdev) 5793bbcfcdc8SFrank Blaschka { 5794bbcfcdc8SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 5795c041f2d4SSebastian Ott if (card->discipline && card->discipline->thaw) 5796c041f2d4SSebastian Ott return card->discipline->thaw(gdev); 5797bbcfcdc8SFrank Blaschka return 0; 5798bbcfcdc8SFrank Blaschka } 5799bbcfcdc8SFrank Blaschka 5800bbcfcdc8SFrank Blaschka static int qeth_core_restore(struct ccwgroup_device *gdev) 5801bbcfcdc8SFrank Blaschka { 5802bbcfcdc8SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 5803c041f2d4SSebastian Ott if (card->discipline && card->discipline->restore) 5804c041f2d4SSebastian Ott return card->discipline->restore(gdev); 5805bbcfcdc8SFrank Blaschka return 0; 5806bbcfcdc8SFrank Blaschka } 5807bbcfcdc8SFrank Blaschka 580836369569SGreg Kroah-Hartman static ssize_t group_store(struct device_driver *ddrv, const char *buf, 580936369569SGreg Kroah-Hartman size_t count) 58104a71df50SFrank Blaschka { 58114a71df50SFrank Blaschka int err; 58124a71df50SFrank Blaschka 58136d8769abSJulian Wiedmann err = ccwgroup_create_dev(qeth_core_root_dev, to_ccwgroupdrv(ddrv), 3, 58146d8769abSJulian Wiedmann buf); 5815b7169c51SSebastian Ott 5816b7169c51SSebastian Ott return err ? err : count; 5817b7169c51SSebastian Ott } 581836369569SGreg Kroah-Hartman static DRIVER_ATTR_WO(group); 58194a71df50SFrank Blaschka 5820f47e2256SSebastian Ott static struct attribute *qeth_drv_attrs[] = { 5821f47e2256SSebastian Ott &driver_attr_group.attr, 5822f47e2256SSebastian Ott NULL, 5823f47e2256SSebastian Ott }; 5824f47e2256SSebastian Ott static struct attribute_group qeth_drv_attr_group = { 5825f47e2256SSebastian Ott .attrs = qeth_drv_attrs, 5826f47e2256SSebastian Ott }; 5827f47e2256SSebastian Ott static const struct attribute_group *qeth_drv_attr_groups[] = { 5828f47e2256SSebastian Ott &qeth_drv_attr_group, 5829f47e2256SSebastian Ott NULL, 5830f47e2256SSebastian Ott }; 5831f47e2256SSebastian Ott 58326d8769abSJulian Wiedmann static struct ccwgroup_driver qeth_core_ccwgroup_driver = { 58336d8769abSJulian Wiedmann .driver = { 58346d8769abSJulian Wiedmann .groups = qeth_drv_attr_groups, 58356d8769abSJulian Wiedmann .owner = THIS_MODULE, 58366d8769abSJulian Wiedmann .name = "qeth", 58376d8769abSJulian Wiedmann }, 58386d8769abSJulian Wiedmann .ccw_driver = &qeth_ccw_driver, 58396d8769abSJulian Wiedmann .setup = qeth_core_probe_device, 58406d8769abSJulian Wiedmann .remove = qeth_core_remove_device, 58416d8769abSJulian Wiedmann .set_online = qeth_core_set_online, 58426d8769abSJulian Wiedmann .set_offline = qeth_core_set_offline, 58436d8769abSJulian Wiedmann .shutdown = qeth_core_shutdown, 58446d8769abSJulian Wiedmann .prepare = NULL, 58456d8769abSJulian Wiedmann .complete = NULL, 58466d8769abSJulian Wiedmann .freeze = qeth_core_freeze, 58476d8769abSJulian Wiedmann .thaw = qeth_core_thaw, 58486d8769abSJulian Wiedmann .restore = qeth_core_restore, 58496d8769abSJulian Wiedmann }; 58506d8769abSJulian Wiedmann 5851d7d18da1SJulian Wiedmann struct qeth_card *qeth_get_card_by_busid(char *bus_id) 5852d7d18da1SJulian Wiedmann { 5853d7d18da1SJulian Wiedmann struct ccwgroup_device *gdev; 5854d7d18da1SJulian Wiedmann struct qeth_card *card; 5855d7d18da1SJulian Wiedmann 5856d7d18da1SJulian Wiedmann gdev = get_ccwgroupdev_by_busid(&qeth_core_ccwgroup_driver, bus_id); 5857d7d18da1SJulian Wiedmann if (!gdev) 5858d7d18da1SJulian Wiedmann return NULL; 5859d7d18da1SJulian Wiedmann 5860d7d18da1SJulian Wiedmann card = dev_get_drvdata(&gdev->dev); 5861d7d18da1SJulian Wiedmann put_device(&gdev->dev); 5862d7d18da1SJulian Wiedmann return card; 5863d7d18da1SJulian Wiedmann } 5864d7d18da1SJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_get_card_by_busid); 5865d7d18da1SJulian Wiedmann 5866942d6984SJulian Wiedmann int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) 5867942d6984SJulian Wiedmann { 5868942d6984SJulian Wiedmann struct qeth_card *card = dev->ml_priv; 5869942d6984SJulian Wiedmann struct mii_ioctl_data *mii_data; 5870942d6984SJulian Wiedmann int rc = 0; 5871942d6984SJulian Wiedmann 5872942d6984SJulian Wiedmann if (!card) 5873942d6984SJulian Wiedmann return -ENODEV; 5874942d6984SJulian Wiedmann 5875942d6984SJulian Wiedmann if (card->info.type == QETH_CARD_TYPE_OSN) 5876942d6984SJulian Wiedmann return -EPERM; 5877942d6984SJulian Wiedmann 5878942d6984SJulian Wiedmann switch (cmd) { 5879942d6984SJulian Wiedmann case SIOC_QETH_ADP_SET_SNMP_CONTROL: 5880942d6984SJulian Wiedmann rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data); 5881942d6984SJulian Wiedmann break; 5882942d6984SJulian Wiedmann case SIOC_QETH_GET_CARD_TYPE: 5883942d6984SJulian Wiedmann if ((card->info.type == QETH_CARD_TYPE_OSD || 5884942d6984SJulian Wiedmann card->info.type == QETH_CARD_TYPE_OSM || 5885942d6984SJulian Wiedmann card->info.type == QETH_CARD_TYPE_OSX) && 5886942d6984SJulian Wiedmann !card->info.guestlan) 5887942d6984SJulian Wiedmann return 1; 5888942d6984SJulian Wiedmann else 5889942d6984SJulian Wiedmann return 0; 5890942d6984SJulian Wiedmann case SIOCGMIIPHY: 5891942d6984SJulian Wiedmann mii_data = if_mii(rq); 5892942d6984SJulian Wiedmann mii_data->phy_id = 0; 5893942d6984SJulian Wiedmann break; 5894942d6984SJulian Wiedmann case SIOCGMIIREG: 5895942d6984SJulian Wiedmann mii_data = if_mii(rq); 5896942d6984SJulian Wiedmann if (mii_data->phy_id != 0) 5897942d6984SJulian Wiedmann rc = -EINVAL; 5898942d6984SJulian Wiedmann else 5899942d6984SJulian Wiedmann mii_data->val_out = qeth_mdio_read(dev, 5900942d6984SJulian Wiedmann mii_data->phy_id, mii_data->reg_num); 5901942d6984SJulian Wiedmann break; 5902942d6984SJulian Wiedmann case SIOC_QETH_QUERY_OAT: 5903942d6984SJulian Wiedmann rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data); 5904942d6984SJulian Wiedmann break; 5905942d6984SJulian Wiedmann default: 5906942d6984SJulian Wiedmann if (card->discipline->do_ioctl) 5907942d6984SJulian Wiedmann rc = card->discipline->do_ioctl(dev, rq, cmd); 5908942d6984SJulian Wiedmann else 5909942d6984SJulian Wiedmann rc = -EOPNOTSUPP; 5910942d6984SJulian Wiedmann } 5911942d6984SJulian Wiedmann if (rc) 5912942d6984SJulian Wiedmann QETH_CARD_TEXT_(card, 2, "ioce%x", rc); 5913942d6984SJulian Wiedmann return rc; 5914942d6984SJulian Wiedmann } 5915942d6984SJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_do_ioctl); 5916942d6984SJulian Wiedmann 59174386e34fSJulian Wiedmann static int qeth_start_csum_cb(struct qeth_card *card, struct qeth_reply *reply, 5918c9475369SThomas Richter unsigned long data) 5919c9475369SThomas Richter { 5920c9475369SThomas Richter struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 59214386e34fSJulian Wiedmann u32 *features = reply->param; 5922c9475369SThomas Richter 5923ad3cbf61SJulian Wiedmann if (qeth_setassparms_inspect_rc(cmd)) 5924742d4d40SJulian Wiedmann return -EIO; 5925c9475369SThomas Richter 59264386e34fSJulian Wiedmann *features = cmd->data.setassparms.data.flags_32bit; 5927c9475369SThomas Richter return 0; 5928c9475369SThomas Richter } 5929c9475369SThomas Richter 59304386e34fSJulian Wiedmann static int qeth_set_csum_off(struct qeth_card *card, enum qeth_ipa_funcs cstype, 5931a8155b00SKittipon Meesompop enum qeth_prot_versions prot) 5932c9475369SThomas Richter { 59334386e34fSJulian Wiedmann return qeth_send_simple_setassparms_prot(card, cstype, 59344386e34fSJulian Wiedmann IPA_CMD_ASS_STOP, 0, prot); 5935c9475369SThomas Richter } 5936c9475369SThomas Richter 59374386e34fSJulian Wiedmann static int qeth_set_csum_on(struct qeth_card *card, enum qeth_ipa_funcs cstype, 5938a8155b00SKittipon Meesompop enum qeth_prot_versions prot) 59394d7def2aSThomas Richter { 5940571f9dd8SKittipon Meesompop u32 required_features = QETH_IPA_CHECKSUM_UDP | QETH_IPA_CHECKSUM_TCP; 59414386e34fSJulian Wiedmann struct qeth_cmd_buffer *iob; 59424386e34fSJulian Wiedmann struct qeth_ipa_caps caps; 59434386e34fSJulian Wiedmann u32 features; 59444d7def2aSThomas Richter int rc; 59454d7def2aSThomas Richter 59467e83747dSJulian Wiedmann /* some L3 HW requires combined L3+L4 csum offload: */ 59477e83747dSJulian Wiedmann if (IS_LAYER3(card) && prot == QETH_PROT_IPV4 && 59487e83747dSJulian Wiedmann cstype == IPA_OUTBOUND_CHECKSUM) 5949571f9dd8SKittipon Meesompop required_features |= QETH_IPA_CHECKSUM_IP_HDR; 59507e83747dSJulian Wiedmann 59514386e34fSJulian Wiedmann iob = qeth_get_setassparms_cmd(card, cstype, IPA_CMD_ASS_START, 0, 5952a8155b00SKittipon Meesompop prot); 59534386e34fSJulian Wiedmann if (!iob) 59544386e34fSJulian Wiedmann return -ENOMEM; 59554386e34fSJulian Wiedmann 59564386e34fSJulian Wiedmann rc = qeth_send_ipa_cmd(card, iob, qeth_start_csum_cb, &features); 59574386e34fSJulian Wiedmann if (rc) 59584d7def2aSThomas Richter return rc; 59594386e34fSJulian Wiedmann 59604386e34fSJulian Wiedmann if ((required_features & features) != required_features) { 59614386e34fSJulian Wiedmann qeth_set_csum_off(card, cstype, prot); 59624386e34fSJulian Wiedmann return -EOPNOTSUPP; 59634386e34fSJulian Wiedmann } 59644386e34fSJulian Wiedmann 59654386e34fSJulian Wiedmann iob = qeth_get_setassparms_cmd(card, cstype, IPA_CMD_ASS_ENABLE, 4, 59664386e34fSJulian Wiedmann prot); 59674386e34fSJulian Wiedmann if (!iob) { 59684386e34fSJulian Wiedmann qeth_set_csum_off(card, cstype, prot); 59694386e34fSJulian Wiedmann return -ENOMEM; 59704386e34fSJulian Wiedmann } 59714386e34fSJulian Wiedmann 59724386e34fSJulian Wiedmann if (features & QETH_IPA_CHECKSUM_LP2LP) 59734386e34fSJulian Wiedmann required_features |= QETH_IPA_CHECKSUM_LP2LP; 59744386e34fSJulian Wiedmann __ipa_cmd(iob)->data.setassparms.data.flags_32bit = required_features; 59754386e34fSJulian Wiedmann rc = qeth_send_ipa_cmd(card, iob, qeth_setassparms_get_caps_cb, &caps); 59764386e34fSJulian Wiedmann if (rc) { 59774386e34fSJulian Wiedmann qeth_set_csum_off(card, cstype, prot); 59784386e34fSJulian Wiedmann return rc; 59794386e34fSJulian Wiedmann } 59804386e34fSJulian Wiedmann 59814386e34fSJulian Wiedmann if (!qeth_ipa_caps_supported(&caps, required_features) || 59824386e34fSJulian Wiedmann !qeth_ipa_caps_enabled(&caps, required_features)) { 59834386e34fSJulian Wiedmann qeth_set_csum_off(card, cstype, prot); 59844386e34fSJulian Wiedmann return -EOPNOTSUPP; 59854d7def2aSThomas Richter } 59868f43fb00SThomas Richter 5987a8155b00SKittipon Meesompop dev_info(&card->gdev->dev, "HW Checksumming (%sbound IPv%d) enabled\n", 5988a8155b00SKittipon Meesompop cstype == IPA_INBOUND_CHECKSUM ? "in" : "out", prot); 59894386e34fSJulian Wiedmann if (!qeth_ipa_caps_enabled(&caps, QETH_IPA_CHECKSUM_LP2LP) && 59904386e34fSJulian Wiedmann cstype == IPA_OUTBOUND_CHECKSUM) 59914386e34fSJulian Wiedmann dev_warn(&card->gdev->dev, 59924386e34fSJulian Wiedmann "Hardware checksumming is performed only if %s and its peer use different OSA Express 3 ports\n", 59934386e34fSJulian Wiedmann QETH_CARD_IFNAME(card)); 59944d7def2aSThomas Richter return 0; 59954d7def2aSThomas Richter } 59964d7def2aSThomas Richter 5997a8155b00SKittipon Meesompop static int qeth_set_ipa_csum(struct qeth_card *card, bool on, int cstype, 5998a8155b00SKittipon Meesompop enum qeth_prot_versions prot) 59994d7def2aSThomas Richter { 6000742d4d40SJulian Wiedmann return on ? qeth_set_csum_on(card, cstype, prot) : 60014386e34fSJulian Wiedmann qeth_set_csum_off(card, cstype, prot); 60024d7def2aSThomas Richter } 60034d7def2aSThomas Richter 60044666d7fbSJulian Wiedmann static int qeth_start_tso_cb(struct qeth_card *card, struct qeth_reply *reply, 60054666d7fbSJulian Wiedmann unsigned long data) 60064666d7fbSJulian Wiedmann { 60074666d7fbSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 60084666d7fbSJulian Wiedmann struct qeth_tso_start_data *tso_data = reply->param; 60094666d7fbSJulian Wiedmann 60104666d7fbSJulian Wiedmann if (qeth_setassparms_inspect_rc(cmd)) 6011742d4d40SJulian Wiedmann return -EIO; 60124666d7fbSJulian Wiedmann 60134666d7fbSJulian Wiedmann tso_data->mss = cmd->data.setassparms.data.tso.mss; 60144666d7fbSJulian Wiedmann tso_data->supported = cmd->data.setassparms.data.tso.supported; 60154666d7fbSJulian Wiedmann return 0; 60164666d7fbSJulian Wiedmann } 60174666d7fbSJulian Wiedmann 60181f83b817SJulian Wiedmann static int qeth_set_tso_off(struct qeth_card *card, 60191f83b817SJulian Wiedmann enum qeth_prot_versions prot) 60204d7def2aSThomas Richter { 60211f83b817SJulian Wiedmann return qeth_send_simple_setassparms_prot(card, IPA_OUTBOUND_TSO, 60221f83b817SJulian Wiedmann IPA_CMD_ASS_STOP, 0, prot); 60238f43fb00SThomas Richter } 60241f83b817SJulian Wiedmann 60251f83b817SJulian Wiedmann static int qeth_set_tso_on(struct qeth_card *card, 60261f83b817SJulian Wiedmann enum qeth_prot_versions prot) 60271f83b817SJulian Wiedmann { 60284666d7fbSJulian Wiedmann struct qeth_tso_start_data tso_data; 60294666d7fbSJulian Wiedmann struct qeth_cmd_buffer *iob; 60304666d7fbSJulian Wiedmann struct qeth_ipa_caps caps; 60314666d7fbSJulian Wiedmann int rc; 60324666d7fbSJulian Wiedmann 60334666d7fbSJulian Wiedmann iob = qeth_get_setassparms_cmd(card, IPA_OUTBOUND_TSO, 60341f83b817SJulian Wiedmann IPA_CMD_ASS_START, 0, prot); 60354666d7fbSJulian Wiedmann if (!iob) 60364666d7fbSJulian Wiedmann return -ENOMEM; 60374666d7fbSJulian Wiedmann 60384fa55fa9SJulian Wiedmann rc = qeth_send_ipa_cmd(card, iob, qeth_start_tso_cb, &tso_data); 60394666d7fbSJulian Wiedmann if (rc) 60404666d7fbSJulian Wiedmann return rc; 60414666d7fbSJulian Wiedmann 60424666d7fbSJulian Wiedmann if (!tso_data.mss || !(tso_data.supported & QETH_IPA_LARGE_SEND_TCP)) { 60434666d7fbSJulian Wiedmann qeth_set_tso_off(card, prot); 60444666d7fbSJulian Wiedmann return -EOPNOTSUPP; 60454666d7fbSJulian Wiedmann } 60464666d7fbSJulian Wiedmann 60474666d7fbSJulian Wiedmann iob = qeth_get_setassparms_cmd(card, IPA_OUTBOUND_TSO, 60484666d7fbSJulian Wiedmann IPA_CMD_ASS_ENABLE, sizeof(caps), prot); 60494666d7fbSJulian Wiedmann if (!iob) { 60504666d7fbSJulian Wiedmann qeth_set_tso_off(card, prot); 60514666d7fbSJulian Wiedmann return -ENOMEM; 60524666d7fbSJulian Wiedmann } 60534666d7fbSJulian Wiedmann 60544666d7fbSJulian Wiedmann /* enable TSO capability */ 60554fa55fa9SJulian Wiedmann __ipa_cmd(iob)->data.setassparms.data.caps.enabled = 60564fa55fa9SJulian Wiedmann QETH_IPA_LARGE_SEND_TCP; 60574fa55fa9SJulian Wiedmann rc = qeth_send_ipa_cmd(card, iob, qeth_setassparms_get_caps_cb, &caps); 60584666d7fbSJulian Wiedmann if (rc) { 60594666d7fbSJulian Wiedmann qeth_set_tso_off(card, prot); 60604666d7fbSJulian Wiedmann return rc; 60614666d7fbSJulian Wiedmann } 60624666d7fbSJulian Wiedmann 60634666d7fbSJulian Wiedmann if (!qeth_ipa_caps_supported(&caps, QETH_IPA_LARGE_SEND_TCP) || 60644666d7fbSJulian Wiedmann !qeth_ipa_caps_enabled(&caps, QETH_IPA_LARGE_SEND_TCP)) { 60654666d7fbSJulian Wiedmann qeth_set_tso_off(card, prot); 60664666d7fbSJulian Wiedmann return -EOPNOTSUPP; 60674666d7fbSJulian Wiedmann } 60684666d7fbSJulian Wiedmann 60694666d7fbSJulian Wiedmann dev_info(&card->gdev->dev, "TSOv%u enabled (MSS: %u)\n", prot, 60704666d7fbSJulian Wiedmann tso_data.mss); 60714666d7fbSJulian Wiedmann return 0; 60728f43fb00SThomas Richter } 60731f83b817SJulian Wiedmann 60741f83b817SJulian Wiedmann static int qeth_set_ipa_tso(struct qeth_card *card, bool on, 60751f83b817SJulian Wiedmann enum qeth_prot_versions prot) 60761f83b817SJulian Wiedmann { 6077742d4d40SJulian Wiedmann return on ? qeth_set_tso_on(card, prot) : qeth_set_tso_off(card, prot); 60784d7def2aSThomas Richter } 60798f43fb00SThomas Richter 6080d7e6ed97SKittipon Meesompop static int qeth_set_ipa_rx_csum(struct qeth_card *card, bool on) 6081d7e6ed97SKittipon Meesompop { 6082d7e6ed97SKittipon Meesompop int rc_ipv4 = (on) ? -EOPNOTSUPP : 0; 6083d7e6ed97SKittipon Meesompop int rc_ipv6; 6084ce344356SJulian Wiedmann 6085d7e6ed97SKittipon Meesompop if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) 6086d7e6ed97SKittipon Meesompop rc_ipv4 = qeth_set_ipa_csum(card, on, IPA_INBOUND_CHECKSUM, 6087d7e6ed97SKittipon Meesompop QETH_PROT_IPV4); 6088d7e6ed97SKittipon Meesompop if (!qeth_is_supported6(card, IPA_INBOUND_CHECKSUM_V6)) 6089d7e6ed97SKittipon Meesompop /* no/one Offload Assist available, so the rc is trivial */ 6090d7e6ed97SKittipon Meesompop return rc_ipv4; 6091d7e6ed97SKittipon Meesompop 6092d7e6ed97SKittipon Meesompop rc_ipv6 = qeth_set_ipa_csum(card, on, IPA_INBOUND_CHECKSUM, 6093d7e6ed97SKittipon Meesompop QETH_PROT_IPV6); 6094d7e6ed97SKittipon Meesompop 6095d7e6ed97SKittipon Meesompop if (on) 6096d7e6ed97SKittipon Meesompop /* enable: success if any Assist is active */ 6097d7e6ed97SKittipon Meesompop return (rc_ipv6) ? rc_ipv4 : 0; 6098d7e6ed97SKittipon Meesompop 6099d7e6ed97SKittipon Meesompop /* disable: failure if any Assist is still active */ 6100d7e6ed97SKittipon Meesompop return (rc_ipv6) ? rc_ipv6 : rc_ipv4; 6101d7e6ed97SKittipon Meesompop } 6102d7e6ed97SKittipon Meesompop 6103ce344356SJulian Wiedmann /** 6104d025da9eSJulian Wiedmann * qeth_enable_hw_features() - (Re-)Enable HW functions for device features 6105d025da9eSJulian Wiedmann * @dev: a net_device 6106ce344356SJulian Wiedmann */ 6107d025da9eSJulian Wiedmann void qeth_enable_hw_features(struct net_device *dev) 6108e830baa9SHans Wippel { 6109e830baa9SHans Wippel struct qeth_card *card = dev->ml_priv; 6110d025da9eSJulian Wiedmann netdev_features_t features; 6111e830baa9SHans Wippel 6112d025da9eSJulian Wiedmann features = dev->features; 61135fc692a7SJulian Wiedmann /* force-off any feature that might need an IPA sequence. 6114ce344356SJulian Wiedmann * netdev_update_features() will restart them. 6115ce344356SJulian Wiedmann */ 61165fc692a7SJulian Wiedmann dev->features &= ~dev->hw_features; 61175fc692a7SJulian Wiedmann /* toggle VLAN filter, so that VIDs are re-programmed: */ 61185fc692a7SJulian Wiedmann if (IS_LAYER2(card) && IS_VM_NIC(card)) { 61195fc692a7SJulian Wiedmann dev->features &= ~NETIF_F_HW_VLAN_CTAG_FILTER; 61205fc692a7SJulian Wiedmann dev->wanted_features |= NETIF_F_HW_VLAN_CTAG_FILTER; 61215fc692a7SJulian Wiedmann } 6122ce344356SJulian Wiedmann netdev_update_features(dev); 6123d025da9eSJulian Wiedmann if (features != dev->features) 6124e830baa9SHans Wippel dev_warn(&card->gdev->dev, 6125e830baa9SHans Wippel "Device recovery failed to restore all offload features\n"); 6126e830baa9SHans Wippel } 6127d025da9eSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_enable_hw_features); 6128e830baa9SHans Wippel 61298f43fb00SThomas Richter int qeth_set_features(struct net_device *dev, netdev_features_t features) 61308f43fb00SThomas Richter { 61318f43fb00SThomas Richter struct qeth_card *card = dev->ml_priv; 61326c7cd712SHans Wippel netdev_features_t changed = dev->features ^ features; 61338f43fb00SThomas Richter int rc = 0; 61348f43fb00SThomas Richter 61358f43fb00SThomas Richter QETH_DBF_TEXT(SETUP, 2, "setfeat"); 61368f43fb00SThomas Richter QETH_DBF_HEX(SETUP, 2, &features, sizeof(features)); 61378f43fb00SThomas Richter 61386c7cd712SHans Wippel if ((changed & NETIF_F_IP_CSUM)) { 6139a8155b00SKittipon Meesompop rc = qeth_set_ipa_csum(card, features & NETIF_F_IP_CSUM, 6140a8155b00SKittipon Meesompop IPA_OUTBOUND_CHECKSUM, QETH_PROT_IPV4); 61416c7cd712SHans Wippel if (rc) 61426c7cd712SHans Wippel changed ^= NETIF_F_IP_CSUM; 61436c7cd712SHans Wippel } 6144571f9dd8SKittipon Meesompop if (changed & NETIF_F_IPV6_CSUM) { 6145571f9dd8SKittipon Meesompop rc = qeth_set_ipa_csum(card, features & NETIF_F_IPV6_CSUM, 6146571f9dd8SKittipon Meesompop IPA_OUTBOUND_CHECKSUM, QETH_PROT_IPV6); 6147571f9dd8SKittipon Meesompop if (rc) 6148571f9dd8SKittipon Meesompop changed ^= NETIF_F_IPV6_CSUM; 6149571f9dd8SKittipon Meesompop } 6150d7e6ed97SKittipon Meesompop if (changed & NETIF_F_RXCSUM) { 6151d7e6ed97SKittipon Meesompop rc = qeth_set_ipa_rx_csum(card, features & NETIF_F_RXCSUM); 61526c7cd712SHans Wippel if (rc) 61536c7cd712SHans Wippel changed ^= NETIF_F_RXCSUM; 61546c7cd712SHans Wippel } 61551f83b817SJulian Wiedmann if (changed & NETIF_F_TSO) { 61561f83b817SJulian Wiedmann rc = qeth_set_ipa_tso(card, features & NETIF_F_TSO, 61571f83b817SJulian Wiedmann QETH_PROT_IPV4); 61586c7cd712SHans Wippel if (rc) 61596c7cd712SHans Wippel changed ^= NETIF_F_TSO; 61606c7cd712SHans Wippel } 616182bf5c08SJulian Wiedmann if (changed & NETIF_F_TSO6) { 616282bf5c08SJulian Wiedmann rc = qeth_set_ipa_tso(card, features & NETIF_F_TSO6, 616382bf5c08SJulian Wiedmann QETH_PROT_IPV6); 616482bf5c08SJulian Wiedmann if (rc) 616582bf5c08SJulian Wiedmann changed ^= NETIF_F_TSO6; 616682bf5c08SJulian Wiedmann } 61676c7cd712SHans Wippel 61686c7cd712SHans Wippel /* everything changed successfully? */ 61696c7cd712SHans Wippel if ((dev->features ^ features) == changed) 61706c7cd712SHans Wippel return 0; 61716c7cd712SHans Wippel /* something went wrong. save changed features and return error */ 61726c7cd712SHans Wippel dev->features ^= changed; 61736c7cd712SHans Wippel return -EIO; 61748f43fb00SThomas Richter } 61758f43fb00SThomas Richter EXPORT_SYMBOL_GPL(qeth_set_features); 61768f43fb00SThomas Richter 61778f43fb00SThomas Richter netdev_features_t qeth_fix_features(struct net_device *dev, 61788f43fb00SThomas Richter netdev_features_t features) 61798f43fb00SThomas Richter { 61808f43fb00SThomas Richter struct qeth_card *card = dev->ml_priv; 61818f43fb00SThomas Richter 61828f43fb00SThomas Richter QETH_DBF_TEXT(SETUP, 2, "fixfeat"); 61838f43fb00SThomas Richter if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM)) 61848f43fb00SThomas Richter features &= ~NETIF_F_IP_CSUM; 6185571f9dd8SKittipon Meesompop if (!qeth_is_supported6(card, IPA_OUTBOUND_CHECKSUM_V6)) 6186571f9dd8SKittipon Meesompop features &= ~NETIF_F_IPV6_CSUM; 6187d7e6ed97SKittipon Meesompop if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM) && 6188d7e6ed97SKittipon Meesompop !qeth_is_supported6(card, IPA_INBOUND_CHECKSUM_V6)) 61898f43fb00SThomas Richter features &= ~NETIF_F_RXCSUM; 6190cf536ffeSJulian Wiedmann if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) 61918f43fb00SThomas Richter features &= ~NETIF_F_TSO; 619282bf5c08SJulian Wiedmann if (!qeth_is_supported6(card, IPA_OUTBOUND_TSO)) 619382bf5c08SJulian Wiedmann features &= ~NETIF_F_TSO6; 6194e6e771b3SJulian Wiedmann 61958f43fb00SThomas Richter QETH_DBF_HEX(SETUP, 2, &features, sizeof(features)); 61968f43fb00SThomas Richter return features; 61978f43fb00SThomas Richter } 61988f43fb00SThomas Richter EXPORT_SYMBOL_GPL(qeth_fix_features); 61994d7def2aSThomas Richter 62006d69b1f1SJulian Wiedmann netdev_features_t qeth_features_check(struct sk_buff *skb, 62016d69b1f1SJulian Wiedmann struct net_device *dev, 62026d69b1f1SJulian Wiedmann netdev_features_t features) 62036d69b1f1SJulian Wiedmann { 62046d69b1f1SJulian Wiedmann /* GSO segmentation builds skbs with 62056d69b1f1SJulian Wiedmann * a (small) linear part for the headers, and 62066d69b1f1SJulian Wiedmann * page frags for the data. 62076d69b1f1SJulian Wiedmann * Compared to a linear skb, the header-only part consumes an 62086d69b1f1SJulian Wiedmann * additional buffer element. This reduces buffer utilization, and 62096d69b1f1SJulian Wiedmann * hurts throughput. So compress small segments into one element. 62106d69b1f1SJulian Wiedmann */ 62116d69b1f1SJulian Wiedmann if (netif_needs_gso(skb, features)) { 62126d69b1f1SJulian Wiedmann /* match skb_segment(): */ 62136d69b1f1SJulian Wiedmann unsigned int doffset = skb->data - skb_mac_header(skb); 62146d69b1f1SJulian Wiedmann unsigned int hsize = skb_shinfo(skb)->gso_size; 62156d69b1f1SJulian Wiedmann unsigned int hroom = skb_headroom(skb); 62166d69b1f1SJulian Wiedmann 62176d69b1f1SJulian Wiedmann /* linearize only if resulting skb allocations are order-0: */ 62186d69b1f1SJulian Wiedmann if (SKB_DATA_ALIGN(hroom + doffset + hsize) <= SKB_MAX_HEAD(0)) 62196d69b1f1SJulian Wiedmann features &= ~NETIF_F_SG; 62206d69b1f1SJulian Wiedmann } 62216d69b1f1SJulian Wiedmann 62226d69b1f1SJulian Wiedmann return vlan_features_check(skb, features); 62236d69b1f1SJulian Wiedmann } 62246d69b1f1SJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_features_check); 62256d69b1f1SJulian Wiedmann 6226e6e771b3SJulian Wiedmann int qeth_open(struct net_device *dev) 6227e22355eaSJulian Wiedmann { 6228e22355eaSJulian Wiedmann struct qeth_card *card = dev->ml_priv; 6229e22355eaSJulian Wiedmann 6230e22355eaSJulian Wiedmann QETH_CARD_TEXT(card, 4, "qethopen"); 6231e22355eaSJulian Wiedmann if (card->state == CARD_STATE_UP) 6232e22355eaSJulian Wiedmann return 0; 6233e22355eaSJulian Wiedmann if (card->state != CARD_STATE_SOFTSETUP) 6234e22355eaSJulian Wiedmann return -ENODEV; 6235e22355eaSJulian Wiedmann 6236e22355eaSJulian Wiedmann if (qdio_stop_irq(CARD_DDEV(card), 0) < 0) 6237e22355eaSJulian Wiedmann return -EIO; 6238e22355eaSJulian Wiedmann 6239e22355eaSJulian Wiedmann card->data.state = CH_STATE_UP; 6240e22355eaSJulian Wiedmann card->state = CARD_STATE_UP; 6241e22355eaSJulian Wiedmann netif_start_queue(dev); 6242e22355eaSJulian Wiedmann 6243e22355eaSJulian Wiedmann napi_enable(&card->napi); 6244e22355eaSJulian Wiedmann local_bh_disable(); 6245e22355eaSJulian Wiedmann napi_schedule(&card->napi); 6246e22355eaSJulian Wiedmann /* kick-start the NAPI softirq: */ 6247e22355eaSJulian Wiedmann local_bh_enable(); 6248e22355eaSJulian Wiedmann return 0; 6249e22355eaSJulian Wiedmann } 6250e22355eaSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_open); 6251e22355eaSJulian Wiedmann 6252e22355eaSJulian Wiedmann int qeth_stop(struct net_device *dev) 6253e22355eaSJulian Wiedmann { 6254e22355eaSJulian Wiedmann struct qeth_card *card = dev->ml_priv; 6255e22355eaSJulian Wiedmann 6256e22355eaSJulian Wiedmann QETH_CARD_TEXT(card, 4, "qethstop"); 6257e22355eaSJulian Wiedmann netif_tx_disable(dev); 6258e22355eaSJulian Wiedmann if (card->state == CARD_STATE_UP) { 6259e22355eaSJulian Wiedmann card->state = CARD_STATE_SOFTSETUP; 6260e22355eaSJulian Wiedmann napi_disable(&card->napi); 6261e22355eaSJulian Wiedmann } 6262e22355eaSJulian Wiedmann return 0; 6263e22355eaSJulian Wiedmann } 6264e22355eaSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_stop); 6265e22355eaSJulian Wiedmann 62664a71df50SFrank Blaschka static int __init qeth_core_init(void) 62674a71df50SFrank Blaschka { 62684a71df50SFrank Blaschka int rc; 62694a71df50SFrank Blaschka 627074eacdb9SFrank Blaschka pr_info("loading core functions\n"); 62714a71df50SFrank Blaschka 62720f54761dSStefan Raspl qeth_wq = create_singlethread_workqueue("qeth_wq"); 6273a936b1efSJulian Wiedmann if (!qeth_wq) { 6274a936b1efSJulian Wiedmann rc = -ENOMEM; 6275a936b1efSJulian Wiedmann goto out_err; 6276a936b1efSJulian Wiedmann } 62770f54761dSStefan Raspl 62784a71df50SFrank Blaschka rc = qeth_register_dbf_views(); 62794a71df50SFrank Blaschka if (rc) 6280a936b1efSJulian Wiedmann goto dbf_err; 6281035da16fSMark McLoughlin qeth_core_root_dev = root_device_register("qeth"); 62829262c6c2SDuan Jiong rc = PTR_ERR_OR_ZERO(qeth_core_root_dev); 62834a71df50SFrank Blaschka if (rc) 62844a71df50SFrank Blaschka goto register_err; 628555494264SJulian Wiedmann qeth_core_header_cache = 628655494264SJulian Wiedmann kmem_cache_create("qeth_hdr", QETH_HDR_CACHE_OBJ_SIZE, 628755494264SJulian Wiedmann roundup_pow_of_two(QETH_HDR_CACHE_OBJ_SIZE), 628855494264SJulian Wiedmann 0, NULL); 6289683d718aSFrank Blaschka if (!qeth_core_header_cache) { 6290683d718aSFrank Blaschka rc = -ENOMEM; 6291683d718aSFrank Blaschka goto slab_err; 6292683d718aSFrank Blaschka } 62930da9581dSEinar Lueck qeth_qdio_outbuf_cache = kmem_cache_create("qeth_buf", 62940da9581dSEinar Lueck sizeof(struct qeth_qdio_out_buffer), 0, 0, NULL); 62950da9581dSEinar Lueck if (!qeth_qdio_outbuf_cache) { 62960da9581dSEinar Lueck rc = -ENOMEM; 62970da9581dSEinar Lueck goto cqslab_err; 62980da9581dSEinar Lueck } 62994a71df50SFrank Blaschka rc = ccw_driver_register(&qeth_ccw_driver); 63004a71df50SFrank Blaschka if (rc) 63014a71df50SFrank Blaschka goto ccw_err; 63024a71df50SFrank Blaschka rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver); 63034a71df50SFrank Blaschka if (rc) 63044a71df50SFrank Blaschka goto ccwgroup_err; 63050da9581dSEinar Lueck 6306683d718aSFrank Blaschka return 0; 6307afb6ac59SSebastian Ott 6308afb6ac59SSebastian Ott ccwgroup_err: 6309afb6ac59SSebastian Ott ccw_driver_unregister(&qeth_ccw_driver); 6310afb6ac59SSebastian Ott ccw_err: 6311afb6ac59SSebastian Ott kmem_cache_destroy(qeth_qdio_outbuf_cache); 63120da9581dSEinar Lueck cqslab_err: 63130da9581dSEinar Lueck kmem_cache_destroy(qeth_core_header_cache); 6314683d718aSFrank Blaschka slab_err: 6315035da16fSMark McLoughlin root_device_unregister(qeth_core_root_dev); 63164a71df50SFrank Blaschka register_err: 63174a71df50SFrank Blaschka qeth_unregister_dbf_views(); 6318a936b1efSJulian Wiedmann dbf_err: 6319a936b1efSJulian Wiedmann destroy_workqueue(qeth_wq); 63204a71df50SFrank Blaschka out_err: 632174eacdb9SFrank Blaschka pr_err("Initializing the qeth device driver failed\n"); 63224a71df50SFrank Blaschka return rc; 63234a71df50SFrank Blaschka } 63244a71df50SFrank Blaschka 63254a71df50SFrank Blaschka static void __exit qeth_core_exit(void) 63264a71df50SFrank Blaschka { 6327819dc537SStefan Raspl qeth_clear_dbf_list(); 63280f54761dSStefan Raspl destroy_workqueue(qeth_wq); 63294a71df50SFrank Blaschka ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver); 63304a71df50SFrank Blaschka ccw_driver_unregister(&qeth_ccw_driver); 63310da9581dSEinar Lueck kmem_cache_destroy(qeth_qdio_outbuf_cache); 6332683d718aSFrank Blaschka kmem_cache_destroy(qeth_core_header_cache); 6333afb6ac59SSebastian Ott root_device_unregister(qeth_core_root_dev); 63344a71df50SFrank Blaschka qeth_unregister_dbf_views(); 633574eacdb9SFrank Blaschka pr_info("core functions removed\n"); 63364a71df50SFrank Blaschka } 63374a71df50SFrank Blaschka 63384a71df50SFrank Blaschka module_init(qeth_core_init); 63394a71df50SFrank Blaschka module_exit(qeth_core_exit); 63404a71df50SFrank Blaschka MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); 63414a71df50SFrank Blaschka MODULE_DESCRIPTION("qeth core functions"); 63424a71df50SFrank Blaschka MODULE_LICENSE("GPL"); 6343