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 64988a747dSJulian Wiedmann static void qeth_issue_next_read_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 *); 7041c47da3SJulian Wiedmann static void qeth_free_qdio_queues(struct qeth_card *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 770f54761dSStefan Raspl static void qeth_close_dev_handler(struct work_struct *work) 780f54761dSStefan Raspl { 790f54761dSStefan Raspl struct qeth_card *card; 800f54761dSStefan Raspl 810f54761dSStefan Raspl card = container_of(work, struct qeth_card, close_dev_work); 820f54761dSStefan Raspl QETH_CARD_TEXT(card, 2, "cldevhdl"); 830f54761dSStefan Raspl ccwgroup_set_offline(card->gdev); 840f54761dSStefan Raspl } 850f54761dSStefan Raspl 86cef6ff22SJulian Wiedmann static const char *qeth_get_cardname(struct qeth_card *card) 874a71df50SFrank Blaschka { 884a71df50SFrank Blaschka if (card->info.guestlan) { 894a71df50SFrank Blaschka switch (card->info.type) { 905113fec0SUrsula Braun case QETH_CARD_TYPE_OSD: 917096b187SStefan Raspl return " Virtual NIC QDIO"; 924a71df50SFrank Blaschka case QETH_CARD_TYPE_IQD: 937096b187SStefan Raspl return " Virtual NIC Hiper"; 945113fec0SUrsula Braun case QETH_CARD_TYPE_OSM: 957096b187SStefan Raspl return " Virtual NIC QDIO - OSM"; 965113fec0SUrsula Braun case QETH_CARD_TYPE_OSX: 977096b187SStefan Raspl return " Virtual NIC QDIO - OSX"; 984a71df50SFrank Blaschka default: 994a71df50SFrank Blaschka return " unknown"; 1004a71df50SFrank Blaschka } 1014a71df50SFrank Blaschka } else { 1024a71df50SFrank Blaschka switch (card->info.type) { 1035113fec0SUrsula Braun case QETH_CARD_TYPE_OSD: 1044a71df50SFrank Blaschka return " OSD Express"; 1054a71df50SFrank Blaschka case QETH_CARD_TYPE_IQD: 1064a71df50SFrank Blaschka return " HiperSockets"; 1074a71df50SFrank Blaschka case QETH_CARD_TYPE_OSN: 1084a71df50SFrank Blaschka return " OSN QDIO"; 1095113fec0SUrsula Braun case QETH_CARD_TYPE_OSM: 1105113fec0SUrsula Braun return " OSM QDIO"; 1115113fec0SUrsula Braun case QETH_CARD_TYPE_OSX: 1125113fec0SUrsula Braun return " OSX QDIO"; 1134a71df50SFrank Blaschka default: 1144a71df50SFrank Blaschka return " unknown"; 1154a71df50SFrank Blaschka } 1164a71df50SFrank Blaschka } 1174a71df50SFrank Blaschka return " n/a"; 1184a71df50SFrank Blaschka } 1194a71df50SFrank Blaschka 1204a71df50SFrank Blaschka /* max length to be returned: 14 */ 1214a71df50SFrank Blaschka const char *qeth_get_cardname_short(struct qeth_card *card) 1224a71df50SFrank Blaschka { 1234a71df50SFrank Blaschka if (card->info.guestlan) { 1244a71df50SFrank Blaschka switch (card->info.type) { 1255113fec0SUrsula Braun case QETH_CARD_TYPE_OSD: 1267096b187SStefan Raspl return "Virt.NIC QDIO"; 1274a71df50SFrank Blaschka case QETH_CARD_TYPE_IQD: 1287096b187SStefan Raspl return "Virt.NIC Hiper"; 1295113fec0SUrsula Braun case QETH_CARD_TYPE_OSM: 1307096b187SStefan Raspl return "Virt.NIC OSM"; 1315113fec0SUrsula Braun case QETH_CARD_TYPE_OSX: 1327096b187SStefan Raspl return "Virt.NIC OSX"; 1334a71df50SFrank Blaschka default: 1344a71df50SFrank Blaschka return "unknown"; 1354a71df50SFrank Blaschka } 1364a71df50SFrank Blaschka } else { 1374a71df50SFrank Blaschka switch (card->info.type) { 1385113fec0SUrsula Braun case QETH_CARD_TYPE_OSD: 1394a71df50SFrank Blaschka switch (card->info.link_type) { 1404a71df50SFrank Blaschka case QETH_LINK_TYPE_FAST_ETH: 1414a71df50SFrank Blaschka return "OSD_100"; 1424a71df50SFrank Blaschka case QETH_LINK_TYPE_HSTR: 1434a71df50SFrank Blaschka return "HSTR"; 1444a71df50SFrank Blaschka case QETH_LINK_TYPE_GBIT_ETH: 1454a71df50SFrank Blaschka return "OSD_1000"; 1464a71df50SFrank Blaschka case QETH_LINK_TYPE_10GBIT_ETH: 1474a71df50SFrank Blaschka return "OSD_10GIG"; 14854e049c2SJulian Wiedmann case QETH_LINK_TYPE_25GBIT_ETH: 14954e049c2SJulian Wiedmann return "OSD_25GIG"; 1504a71df50SFrank Blaschka case QETH_LINK_TYPE_LANE_ETH100: 1514a71df50SFrank Blaschka return "OSD_FE_LANE"; 1524a71df50SFrank Blaschka case QETH_LINK_TYPE_LANE_TR: 1534a71df50SFrank Blaschka return "OSD_TR_LANE"; 1544a71df50SFrank Blaschka case QETH_LINK_TYPE_LANE_ETH1000: 1554a71df50SFrank Blaschka return "OSD_GbE_LANE"; 1564a71df50SFrank Blaschka case QETH_LINK_TYPE_LANE: 1574a71df50SFrank Blaschka return "OSD_ATM_LANE"; 1584a71df50SFrank Blaschka default: 1594a71df50SFrank Blaschka return "OSD_Express"; 1604a71df50SFrank Blaschka } 1614a71df50SFrank Blaschka case QETH_CARD_TYPE_IQD: 1624a71df50SFrank Blaschka return "HiperSockets"; 1634a71df50SFrank Blaschka case QETH_CARD_TYPE_OSN: 1644a71df50SFrank Blaschka return "OSN"; 1655113fec0SUrsula Braun case QETH_CARD_TYPE_OSM: 1665113fec0SUrsula Braun return "OSM_1000"; 1675113fec0SUrsula Braun case QETH_CARD_TYPE_OSX: 1685113fec0SUrsula Braun return "OSX_10GIG"; 1694a71df50SFrank Blaschka default: 1704a71df50SFrank Blaschka return "unknown"; 1714a71df50SFrank Blaschka } 1724a71df50SFrank Blaschka } 1734a71df50SFrank Blaschka return "n/a"; 1744a71df50SFrank Blaschka } 1754a71df50SFrank Blaschka 1764a71df50SFrank Blaschka void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads, 1774a71df50SFrank Blaschka int clear_start_mask) 1784a71df50SFrank Blaschka { 1794a71df50SFrank Blaschka unsigned long flags; 1804a71df50SFrank Blaschka 1814a71df50SFrank Blaschka spin_lock_irqsave(&card->thread_mask_lock, flags); 1824a71df50SFrank Blaschka card->thread_allowed_mask = threads; 1834a71df50SFrank Blaschka if (clear_start_mask) 1844a71df50SFrank Blaschka card->thread_start_mask &= threads; 1854a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 1864a71df50SFrank Blaschka wake_up(&card->wait_q); 1874a71df50SFrank Blaschka } 1884a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_set_allowed_threads); 1894a71df50SFrank Blaschka 1904a71df50SFrank Blaschka int qeth_threads_running(struct qeth_card *card, unsigned long threads) 1914a71df50SFrank Blaschka { 1924a71df50SFrank Blaschka unsigned long flags; 1934a71df50SFrank Blaschka int rc = 0; 1944a71df50SFrank Blaschka 1954a71df50SFrank Blaschka spin_lock_irqsave(&card->thread_mask_lock, flags); 1964a71df50SFrank Blaschka rc = (card->thread_running_mask & threads); 1974a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 1984a71df50SFrank Blaschka return rc; 1994a71df50SFrank Blaschka } 2004a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_threads_running); 2014a71df50SFrank Blaschka 2024a71df50SFrank Blaschka void qeth_clear_working_pool_list(struct qeth_card *card) 2034a71df50SFrank Blaschka { 2044a71df50SFrank Blaschka struct qeth_buffer_pool_entry *pool_entry, *tmp; 2054a71df50SFrank Blaschka 206847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "clwrklst"); 2074a71df50SFrank Blaschka list_for_each_entry_safe(pool_entry, tmp, 2084a71df50SFrank Blaschka &card->qdio.in_buf_pool.entry_list, list){ 2094a71df50SFrank Blaschka list_del(&pool_entry->list); 2104a71df50SFrank Blaschka } 2114a71df50SFrank Blaschka } 2124a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list); 2134a71df50SFrank Blaschka 2144a71df50SFrank Blaschka static int qeth_alloc_buffer_pool(struct qeth_card *card) 2154a71df50SFrank Blaschka { 2164a71df50SFrank Blaschka struct qeth_buffer_pool_entry *pool_entry; 2174a71df50SFrank Blaschka void *ptr; 2184a71df50SFrank Blaschka int i, j; 2194a71df50SFrank Blaschka 220847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "alocpool"); 2214a71df50SFrank Blaschka for (i = 0; i < card->qdio.init_pool.buf_count; ++i) { 222b3332930SFrank Blaschka pool_entry = kzalloc(sizeof(*pool_entry), GFP_KERNEL); 2234a71df50SFrank Blaschka if (!pool_entry) { 2244a71df50SFrank Blaschka qeth_free_buffer_pool(card); 2254a71df50SFrank Blaschka return -ENOMEM; 2264a71df50SFrank Blaschka } 2274a71df50SFrank Blaschka for (j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j) { 228508b3c4fSUrsula Braun ptr = (void *) __get_free_page(GFP_KERNEL); 2294a71df50SFrank Blaschka if (!ptr) { 2304a71df50SFrank Blaschka while (j > 0) 2314a71df50SFrank Blaschka free_page((unsigned long) 2324a71df50SFrank Blaschka pool_entry->elements[--j]); 2334a71df50SFrank Blaschka kfree(pool_entry); 2344a71df50SFrank Blaschka qeth_free_buffer_pool(card); 2354a71df50SFrank Blaschka return -ENOMEM; 2364a71df50SFrank Blaschka } 2374a71df50SFrank Blaschka pool_entry->elements[j] = ptr; 2384a71df50SFrank Blaschka } 2394a71df50SFrank Blaschka list_add(&pool_entry->init_list, 2404a71df50SFrank Blaschka &card->qdio.init_pool.entry_list); 2414a71df50SFrank Blaschka } 2424a71df50SFrank Blaschka return 0; 2434a71df50SFrank Blaschka } 2444a71df50SFrank Blaschka 2454a71df50SFrank Blaschka int qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt) 2464a71df50SFrank Blaschka { 247847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "realcbp"); 2484a71df50SFrank Blaschka 249d7d543f2SJulian Wiedmann if (card->state != CARD_STATE_DOWN) 2504a71df50SFrank Blaschka return -EPERM; 2514a71df50SFrank Blaschka 2524a71df50SFrank Blaschka /* TODO: steel/add buffers from/to a running card's buffer pool (?) */ 2534a71df50SFrank Blaschka qeth_clear_working_pool_list(card); 2544a71df50SFrank Blaschka qeth_free_buffer_pool(card); 2554a71df50SFrank Blaschka card->qdio.in_buf_pool.buf_count = bufcnt; 2564a71df50SFrank Blaschka card->qdio.init_pool.buf_count = bufcnt; 2574a71df50SFrank Blaschka return qeth_alloc_buffer_pool(card); 2584a71df50SFrank Blaschka } 25976b11f8eSUrsula Braun EXPORT_SYMBOL_GPL(qeth_realloc_buffer_pool); 2604a71df50SFrank Blaschka 2614601ba6cSSebastian Ott static void qeth_free_qdio_queue(struct qeth_qdio_q *q) 2624601ba6cSSebastian Ott { 2636d284bdeSSebastian Ott if (!q) 2646d284bdeSSebastian Ott return; 2656d284bdeSSebastian Ott 2666d284bdeSSebastian Ott qdio_free_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q); 2674601ba6cSSebastian Ott kfree(q); 2684601ba6cSSebastian Ott } 2694601ba6cSSebastian Ott 2704601ba6cSSebastian Ott static struct qeth_qdio_q *qeth_alloc_qdio_queue(void) 2714601ba6cSSebastian Ott { 2724601ba6cSSebastian Ott struct qeth_qdio_q *q = kzalloc(sizeof(*q), GFP_KERNEL); 2734601ba6cSSebastian Ott int i; 2744601ba6cSSebastian Ott 2754601ba6cSSebastian Ott if (!q) 2764601ba6cSSebastian Ott return NULL; 2774601ba6cSSebastian Ott 2786d284bdeSSebastian Ott if (qdio_alloc_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q)) { 2796d284bdeSSebastian Ott kfree(q); 2806d284bdeSSebastian Ott return NULL; 2816d284bdeSSebastian Ott } 2826d284bdeSSebastian Ott 2834601ba6cSSebastian Ott for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) 2846d284bdeSSebastian Ott q->bufs[i].buffer = q->qdio_bufs[i]; 2854601ba6cSSebastian Ott 2864601ba6cSSebastian Ott QETH_DBF_HEX(SETUP, 2, &q, sizeof(void *)); 2874601ba6cSSebastian Ott return q; 2884601ba6cSSebastian Ott } 2894601ba6cSSebastian Ott 290cef6ff22SJulian Wiedmann static int qeth_cq_init(struct qeth_card *card) 2910da9581dSEinar Lueck { 2920da9581dSEinar Lueck int rc; 2930da9581dSEinar Lueck 2940da9581dSEinar Lueck if (card->options.cq == QETH_CQ_ENABLED) { 2950da9581dSEinar Lueck QETH_DBF_TEXT(SETUP, 2, "cqinit"); 2966d284bdeSSebastian Ott qdio_reset_buffers(card->qdio.c_q->qdio_bufs, 2976d284bdeSSebastian Ott QDIO_MAX_BUFFERS_PER_Q); 2980da9581dSEinar Lueck card->qdio.c_q->next_buf_to_init = 127; 2990da9581dSEinar Lueck rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 3000da9581dSEinar Lueck card->qdio.no_in_queues - 1, 0, 3010da9581dSEinar Lueck 127); 3020da9581dSEinar Lueck if (rc) { 3030da9581dSEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 3040da9581dSEinar Lueck goto out; 3050da9581dSEinar Lueck } 3060da9581dSEinar Lueck } 3070da9581dSEinar Lueck rc = 0; 3080da9581dSEinar Lueck out: 3090da9581dSEinar Lueck return rc; 3100da9581dSEinar Lueck } 3110da9581dSEinar Lueck 312cef6ff22SJulian Wiedmann static int qeth_alloc_cq(struct qeth_card *card) 3130da9581dSEinar Lueck { 3140da9581dSEinar Lueck int rc; 3150da9581dSEinar Lueck 3160da9581dSEinar Lueck if (card->options.cq == QETH_CQ_ENABLED) { 3170da9581dSEinar Lueck int i; 3180da9581dSEinar Lueck struct qdio_outbuf_state *outbuf_states; 3190da9581dSEinar Lueck 3200da9581dSEinar Lueck QETH_DBF_TEXT(SETUP, 2, "cqon"); 3214601ba6cSSebastian Ott card->qdio.c_q = qeth_alloc_qdio_queue(); 3220da9581dSEinar Lueck if (!card->qdio.c_q) { 3230da9581dSEinar Lueck rc = -1; 3240da9581dSEinar Lueck goto kmsg_out; 3250da9581dSEinar Lueck } 3260da9581dSEinar Lueck card->qdio.no_in_queues = 2; 3274a912f98SZhang Yanfei card->qdio.out_bufstates = 3286396bb22SKees Cook kcalloc(card->qdio.no_out_queues * 3296396bb22SKees Cook QDIO_MAX_BUFFERS_PER_Q, 3306396bb22SKees Cook sizeof(struct qdio_outbuf_state), 3316396bb22SKees Cook GFP_KERNEL); 3320da9581dSEinar Lueck outbuf_states = card->qdio.out_bufstates; 3330da9581dSEinar Lueck if (outbuf_states == NULL) { 3340da9581dSEinar Lueck rc = -1; 3350da9581dSEinar Lueck goto free_cq_out; 3360da9581dSEinar Lueck } 3370da9581dSEinar Lueck for (i = 0; i < card->qdio.no_out_queues; ++i) { 3380da9581dSEinar Lueck card->qdio.out_qs[i]->bufstates = outbuf_states; 3390da9581dSEinar Lueck outbuf_states += QDIO_MAX_BUFFERS_PER_Q; 3400da9581dSEinar Lueck } 3410da9581dSEinar Lueck } else { 3420da9581dSEinar Lueck QETH_DBF_TEXT(SETUP, 2, "nocq"); 3430da9581dSEinar Lueck card->qdio.c_q = NULL; 3440da9581dSEinar Lueck card->qdio.no_in_queues = 1; 3450da9581dSEinar Lueck } 3460da9581dSEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "iqc%d", card->qdio.no_in_queues); 3470da9581dSEinar Lueck rc = 0; 3480da9581dSEinar Lueck out: 3490da9581dSEinar Lueck return rc; 3500da9581dSEinar Lueck free_cq_out: 3514601ba6cSSebastian Ott qeth_free_qdio_queue(card->qdio.c_q); 3520da9581dSEinar Lueck card->qdio.c_q = NULL; 3530da9581dSEinar Lueck kmsg_out: 3540da9581dSEinar Lueck dev_err(&card->gdev->dev, "Failed to create completion queue\n"); 3550da9581dSEinar Lueck goto out; 3560da9581dSEinar Lueck } 3570da9581dSEinar Lueck 358cef6ff22SJulian Wiedmann static void qeth_free_cq(struct qeth_card *card) 3590da9581dSEinar Lueck { 3600da9581dSEinar Lueck if (card->qdio.c_q) { 3610da9581dSEinar Lueck --card->qdio.no_in_queues; 3624601ba6cSSebastian Ott qeth_free_qdio_queue(card->qdio.c_q); 3630da9581dSEinar Lueck card->qdio.c_q = NULL; 3640da9581dSEinar Lueck } 3650da9581dSEinar Lueck kfree(card->qdio.out_bufstates); 3660da9581dSEinar Lueck card->qdio.out_bufstates = NULL; 3670da9581dSEinar Lueck } 3680da9581dSEinar Lueck 369cef6ff22SJulian Wiedmann static enum iucv_tx_notify qeth_compute_cq_notification(int sbalf15, 370cef6ff22SJulian Wiedmann int delayed) 371cef6ff22SJulian Wiedmann { 372b3332930SFrank Blaschka enum iucv_tx_notify n; 373b3332930SFrank Blaschka 374b3332930SFrank Blaschka switch (sbalf15) { 375b3332930SFrank Blaschka case 0: 376b3332930SFrank Blaschka n = delayed ? TX_NOTIFY_DELAYED_OK : TX_NOTIFY_OK; 377b3332930SFrank Blaschka break; 378b3332930SFrank Blaschka case 4: 379b3332930SFrank Blaschka case 16: 380b3332930SFrank Blaschka case 17: 381b3332930SFrank Blaschka case 18: 382b3332930SFrank Blaschka n = delayed ? TX_NOTIFY_DELAYED_UNREACHABLE : 383b3332930SFrank Blaschka TX_NOTIFY_UNREACHABLE; 384b3332930SFrank Blaschka break; 385b3332930SFrank Blaschka default: 386b3332930SFrank Blaschka n = delayed ? TX_NOTIFY_DELAYED_GENERALERROR : 387b3332930SFrank Blaschka TX_NOTIFY_GENERALERROR; 388b3332930SFrank Blaschka break; 389b3332930SFrank Blaschka } 390b3332930SFrank Blaschka 391b3332930SFrank Blaschka return n; 392b3332930SFrank Blaschka } 393b3332930SFrank Blaschka 394cef6ff22SJulian Wiedmann static void qeth_cleanup_handled_pending(struct qeth_qdio_out_q *q, int bidx, 395cef6ff22SJulian Wiedmann int forced_cleanup) 3960da9581dSEinar Lueck { 39772861ae7SEinar Lueck if (q->card->options.cq != QETH_CQ_ENABLED) 39872861ae7SEinar Lueck return; 39972861ae7SEinar Lueck 4000da9581dSEinar Lueck if (q->bufs[bidx]->next_pending != NULL) { 4010da9581dSEinar Lueck struct qeth_qdio_out_buffer *head = q->bufs[bidx]; 4020da9581dSEinar Lueck struct qeth_qdio_out_buffer *c = q->bufs[bidx]->next_pending; 4030da9581dSEinar Lueck 4040da9581dSEinar Lueck while (c) { 4050da9581dSEinar Lueck if (forced_cleanup || 4060da9581dSEinar Lueck atomic_read(&c->state) == 4070da9581dSEinar Lueck QETH_QDIO_BUF_HANDLED_DELAYED) { 4080da9581dSEinar Lueck struct qeth_qdio_out_buffer *f = c; 4090da9581dSEinar Lueck QETH_CARD_TEXT(f->q->card, 5, "fp"); 4100da9581dSEinar Lueck QETH_CARD_TEXT_(f->q->card, 5, "%lx", (long) f); 411b3332930SFrank Blaschka /* release here to avoid interleaving between 412b3332930SFrank Blaschka outbound tasklet and inbound tasklet 413b3332930SFrank Blaschka regarding notifications and lifecycle */ 414b3332930SFrank Blaschka qeth_release_skbs(c); 415b3332930SFrank Blaschka 4160da9581dSEinar Lueck c = f->next_pending; 41718af5c17SStefan Raspl WARN_ON_ONCE(head->next_pending != f); 4180da9581dSEinar Lueck head->next_pending = c; 4190da9581dSEinar Lueck kmem_cache_free(qeth_qdio_outbuf_cache, f); 4200da9581dSEinar Lueck } else { 4210da9581dSEinar Lueck head = c; 4220da9581dSEinar Lueck c = c->next_pending; 4230da9581dSEinar Lueck } 4240da9581dSEinar Lueck 4250da9581dSEinar Lueck } 4260da9581dSEinar Lueck } 42772861ae7SEinar Lueck if (forced_cleanup && (atomic_read(&(q->bufs[bidx]->state)) == 42872861ae7SEinar Lueck QETH_QDIO_BUF_HANDLED_DELAYED)) { 42972861ae7SEinar Lueck /* for recovery situations */ 43072861ae7SEinar Lueck qeth_init_qdio_out_buf(q, bidx); 43172861ae7SEinar Lueck QETH_CARD_TEXT(q->card, 2, "clprecov"); 43272861ae7SEinar Lueck } 4330da9581dSEinar Lueck } 4340da9581dSEinar Lueck 4350da9581dSEinar Lueck 436cef6ff22SJulian Wiedmann static void qeth_qdio_handle_aob(struct qeth_card *card, 437cef6ff22SJulian Wiedmann unsigned long phys_aob_addr) 438cef6ff22SJulian Wiedmann { 4390da9581dSEinar Lueck struct qaob *aob; 4400da9581dSEinar Lueck struct qeth_qdio_out_buffer *buffer; 441b3332930SFrank Blaschka enum iucv_tx_notify notification; 442ce28867fSJulian Wiedmann unsigned int i; 4430da9581dSEinar Lueck 4440da9581dSEinar Lueck aob = (struct qaob *) phys_to_virt(phys_aob_addr); 4450da9581dSEinar Lueck QETH_CARD_TEXT(card, 5, "haob"); 4460da9581dSEinar Lueck QETH_CARD_TEXT_(card, 5, "%lx", phys_aob_addr); 4470da9581dSEinar Lueck buffer = (struct qeth_qdio_out_buffer *) aob->user1; 4480da9581dSEinar Lueck QETH_CARD_TEXT_(card, 5, "%lx", aob->user1); 4490da9581dSEinar Lueck 450b3332930SFrank Blaschka if (atomic_cmpxchg(&buffer->state, QETH_QDIO_BUF_PRIMED, 451b3332930SFrank Blaschka QETH_QDIO_BUF_IN_CQ) == QETH_QDIO_BUF_PRIMED) { 452b3332930SFrank Blaschka notification = TX_NOTIFY_OK; 453b3332930SFrank Blaschka } else { 45418af5c17SStefan Raspl WARN_ON_ONCE(atomic_read(&buffer->state) != 45518af5c17SStefan Raspl QETH_QDIO_BUF_PENDING); 456b3332930SFrank Blaschka atomic_set(&buffer->state, QETH_QDIO_BUF_IN_CQ); 457b3332930SFrank Blaschka notification = TX_NOTIFY_DELAYED_OK; 458b3332930SFrank Blaschka } 459b3332930SFrank Blaschka 460b3332930SFrank Blaschka if (aob->aorc != 0) { 461b3332930SFrank Blaschka QETH_CARD_TEXT_(card, 2, "aorc%02X", aob->aorc); 462b3332930SFrank Blaschka notification = qeth_compute_cq_notification(aob->aorc, 1); 463b3332930SFrank Blaschka } 464b3332930SFrank Blaschka qeth_notify_skbs(buffer->q, buffer, notification); 465b3332930SFrank Blaschka 466ce28867fSJulian Wiedmann /* Free dangling allocations. The attached skbs are handled by 467ce28867fSJulian Wiedmann * qeth_cleanup_handled_pending(). 468ce28867fSJulian Wiedmann */ 469ce28867fSJulian Wiedmann for (i = 0; 470ce28867fSJulian Wiedmann i < aob->sb_count && i < QETH_MAX_BUFFER_ELEMENTS(card); 471ce28867fSJulian Wiedmann i++) { 472ce28867fSJulian Wiedmann if (aob->sba[i] && buffer->is_header[i]) 473ce28867fSJulian Wiedmann kmem_cache_free(qeth_core_header_cache, 474ce28867fSJulian Wiedmann (void *) aob->sba[i]); 475ce28867fSJulian Wiedmann } 476ce28867fSJulian Wiedmann atomic_set(&buffer->state, QETH_QDIO_BUF_HANDLED_DELAYED); 47772861ae7SEinar Lueck 4780da9581dSEinar Lueck qdio_release_aob(aob); 4790da9581dSEinar Lueck } 4800da9581dSEinar Lueck 4810da9581dSEinar Lueck static inline int qeth_is_cq(struct qeth_card *card, unsigned int queue) 4820da9581dSEinar Lueck { 4830da9581dSEinar Lueck return card->options.cq == QETH_CQ_ENABLED && 4840da9581dSEinar Lueck card->qdio.c_q != NULL && 4850da9581dSEinar Lueck queue != 0 && 4860da9581dSEinar Lueck queue == card->qdio.no_in_queues - 1; 4870da9581dSEinar Lueck } 4880da9581dSEinar Lueck 48945ca2fd6SJulian Wiedmann static void qeth_setup_ccw(struct ccw1 *ccw, u8 cmd_code, u32 len, void *data) 49045ca2fd6SJulian Wiedmann { 49145ca2fd6SJulian Wiedmann ccw->cmd_code = cmd_code; 49245ca2fd6SJulian Wiedmann ccw->flags = CCW_FLAG_SLI; 49345ca2fd6SJulian Wiedmann ccw->count = len; 49445ca2fd6SJulian Wiedmann ccw->cda = (__u32) __pa(data); 49545ca2fd6SJulian Wiedmann } 49645ca2fd6SJulian Wiedmann 49717bf8c9bSJulian Wiedmann static int __qeth_issue_next_read(struct qeth_card *card) 4984a71df50SFrank Blaschka { 499750b1625SJulian Wiedmann struct qeth_channel *channel = &card->read; 5004a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 501750b1625SJulian Wiedmann int rc; 5024a71df50SFrank Blaschka 503847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "issnxrd"); 504750b1625SJulian Wiedmann if (channel->state != CH_STATE_UP) 5054a71df50SFrank Blaschka return -EIO; 506750b1625SJulian Wiedmann iob = qeth_get_buffer(channel); 5074a71df50SFrank Blaschka if (!iob) { 50874eacdb9SFrank Blaschka dev_warn(&card->gdev->dev, "The qeth device driver " 50974eacdb9SFrank Blaschka "failed to recover an error on the device\n"); 510e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "issue_next_read on device %x failed: no iob available\n", 511e19e5be8SJulian Wiedmann CARD_DEVID(card)); 5124a71df50SFrank Blaschka return -ENOMEM; 5134a71df50SFrank Blaschka } 514988a747dSJulian Wiedmann 515f15cdaf2SJulian Wiedmann qeth_setup_ccw(channel->ccw, CCW_CMD_READ, QETH_BUFSIZE, iob->data); 516988a747dSJulian Wiedmann iob->callback = qeth_issue_next_read_cb; 517847a50fdSCarsten Otte QETH_CARD_TEXT(card, 6, "noirqpnd"); 518f15cdaf2SJulian Wiedmann rc = ccw_device_start(channel->ccwdev, channel->ccw, 5194a71df50SFrank Blaschka (addr_t) iob, 0, 0); 5204a71df50SFrank Blaschka if (rc) { 521e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "error %i on device %x when starting next read ccw!\n", 522e19e5be8SJulian Wiedmann rc, CARD_DEVID(card)); 523750b1625SJulian Wiedmann atomic_set(&channel->irq_pending, 0); 5245065b2ddSJulian Wiedmann qeth_release_buffer(channel, iob); 525908abbb5SUrsula Braun card->read_or_write_problem = 1; 5264a71df50SFrank Blaschka qeth_schedule_recovery(card); 5274a71df50SFrank Blaschka wake_up(&card->wait_q); 5284a71df50SFrank Blaschka } 5294a71df50SFrank Blaschka return rc; 5304a71df50SFrank Blaschka } 5314a71df50SFrank Blaschka 53217bf8c9bSJulian Wiedmann static int qeth_issue_next_read(struct qeth_card *card) 53317bf8c9bSJulian Wiedmann { 53417bf8c9bSJulian Wiedmann int ret; 53517bf8c9bSJulian Wiedmann 53617bf8c9bSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(CARD_RDEV(card))); 53717bf8c9bSJulian Wiedmann ret = __qeth_issue_next_read(card); 53817bf8c9bSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(CARD_RDEV(card))); 53917bf8c9bSJulian Wiedmann 54017bf8c9bSJulian Wiedmann return ret; 54117bf8c9bSJulian Wiedmann } 54217bf8c9bSJulian Wiedmann 5434a71df50SFrank Blaschka static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card) 5444a71df50SFrank Blaschka { 5454a71df50SFrank Blaschka struct qeth_reply *reply; 5464a71df50SFrank Blaschka 547782e4a79SJulian Wiedmann reply = kzalloc(sizeof(*reply), GFP_KERNEL); 5484a71df50SFrank Blaschka if (reply) { 549ae695927SElena Reshetova refcount_set(&reply->refcnt, 1); 550782e4a79SJulian Wiedmann init_completion(&reply->received); 5516531084cSPeter Senna Tschudin } 5524a71df50SFrank Blaschka return reply; 5534a71df50SFrank Blaschka } 5544a71df50SFrank Blaschka 5554a71df50SFrank Blaschka static void qeth_get_reply(struct qeth_reply *reply) 5564a71df50SFrank Blaschka { 557ae695927SElena Reshetova refcount_inc(&reply->refcnt); 5584a71df50SFrank Blaschka } 5594a71df50SFrank Blaschka 5604a71df50SFrank Blaschka static void qeth_put_reply(struct qeth_reply *reply) 5614a71df50SFrank Blaschka { 562ae695927SElena Reshetova if (refcount_dec_and_test(&reply->refcnt)) 5634a71df50SFrank Blaschka kfree(reply); 5644a71df50SFrank Blaschka } 5654a71df50SFrank Blaschka 5660951c6baSJulian Wiedmann static void qeth_enqueue_reply(struct qeth_card *card, struct qeth_reply *reply) 5670951c6baSJulian Wiedmann { 5680951c6baSJulian Wiedmann spin_lock_irq(&card->lock); 5690951c6baSJulian Wiedmann list_add_tail(&reply->list, &card->cmd_waiter_list); 5700951c6baSJulian Wiedmann spin_unlock_irq(&card->lock); 5710951c6baSJulian Wiedmann } 5720951c6baSJulian Wiedmann 5730951c6baSJulian Wiedmann static void qeth_dequeue_reply(struct qeth_card *card, struct qeth_reply *reply) 5740951c6baSJulian Wiedmann { 5750951c6baSJulian Wiedmann spin_lock_irq(&card->lock); 5760951c6baSJulian Wiedmann list_del(&reply->list); 5770951c6baSJulian Wiedmann spin_unlock_irq(&card->lock); 5780951c6baSJulian Wiedmann } 5790951c6baSJulian Wiedmann 58061e04465SJulian Wiedmann static void qeth_notify_reply(struct qeth_reply *reply, int reason) 5810951c6baSJulian Wiedmann { 58261e04465SJulian Wiedmann reply->rc = reason; 583782e4a79SJulian Wiedmann complete(&reply->received); 5840951c6baSJulian Wiedmann } 5850951c6baSJulian Wiedmann 586d11ba0c4SPeter Tiedemann static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc, 5874a71df50SFrank Blaschka struct qeth_card *card) 5884a71df50SFrank Blaschka { 589048a7f8bSJean Delvare const char *ipa_name; 590d11ba0c4SPeter Tiedemann int com = cmd->hdr.command; 5914a71df50SFrank Blaschka ipa_name = qeth_get_ipa_cmd_name(com); 592e19e5be8SJulian Wiedmann 593d11ba0c4SPeter Tiedemann if (rc) 594e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "IPA: %s(%#x) for device %x returned %#x \"%s\"\n", 595e19e5be8SJulian Wiedmann ipa_name, com, CARD_DEVID(card), rc, 59670919e23SUrsula Braun qeth_get_ipa_msg(rc)); 597d11ba0c4SPeter Tiedemann else 598e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(5, "IPA: %s(%#x) for device %x succeeded\n", 599e19e5be8SJulian Wiedmann ipa_name, com, CARD_DEVID(card)); 6004a71df50SFrank Blaschka } 6014a71df50SFrank Blaschka 6024a71df50SFrank Blaschka static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card, 603d19b93f4SJulian Wiedmann struct qeth_ipa_cmd *cmd) 6044a71df50SFrank Blaschka { 605847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "chkipad"); 606d19b93f4SJulian Wiedmann 6074a71df50SFrank Blaschka if (IS_IPA_REPLY(cmd)) { 60876b11f8eSUrsula Braun if (cmd->hdr.command != IPA_CMD_SETCCID && 60976b11f8eSUrsula Braun cmd->hdr.command != IPA_CMD_DELCCID && 61076b11f8eSUrsula Braun cmd->hdr.command != IPA_CMD_MODCCID && 61176b11f8eSUrsula Braun cmd->hdr.command != IPA_CMD_SET_DIAG_ASS) 612d19b93f4SJulian Wiedmann qeth_issue_ipa_msg(cmd, cmd->hdr.return_code, card); 6134a71df50SFrank Blaschka return cmd; 614d19b93f4SJulian Wiedmann } 615d19b93f4SJulian Wiedmann 616d19b93f4SJulian Wiedmann /* handle unsolicited event: */ 6174a71df50SFrank Blaschka switch (cmd->hdr.command) { 6184a71df50SFrank Blaschka case IPA_CMD_STOPLAN: 619d19b93f4SJulian Wiedmann if (cmd->hdr.return_code == IPA_RC_VEPA_TO_VEB_TRANSITION) { 6200f54761dSStefan Raspl dev_err(&card->gdev->dev, 621d19b93f4SJulian Wiedmann "Interface %s is down because the adjacent port is no longer in reflective relay mode\n", 6220f54761dSStefan Raspl QETH_CARD_IFNAME(card)); 623dcef5cadSJulian Wiedmann schedule_work(&card->close_dev_work); 6240f54761dSStefan Raspl } else { 62574eacdb9SFrank Blaschka dev_warn(&card->gdev->dev, 626d19b93f4SJulian Wiedmann "The link for interface %s on CHPID 0x%X failed\n", 627d19b93f4SJulian Wiedmann QETH_CARD_IFNAME(card), card->info.chpid); 628d19b93f4SJulian Wiedmann qeth_issue_ipa_msg(cmd, cmd->hdr.return_code, card); 6294a71df50SFrank Blaschka netif_carrier_off(card->dev); 63091cc98f5SJulian Wiedmann } 6314a71df50SFrank Blaschka return NULL; 6324a71df50SFrank Blaschka case IPA_CMD_STARTLAN: 63374eacdb9SFrank Blaschka dev_info(&card->gdev->dev, 634d19b93f4SJulian Wiedmann "The link for %s on CHPID 0x%X has been restored\n", 635d19b93f4SJulian Wiedmann QETH_CARD_IFNAME(card), card->info.chpid); 6361da74b1cSFrank Blaschka if (card->info.hwtrap) 6371da74b1cSFrank Blaschka card->info.hwtrap = 2; 6384a71df50SFrank Blaschka qeth_schedule_recovery(card); 6394a71df50SFrank Blaschka return NULL; 6409c23f4daSEugene Crosser case IPA_CMD_SETBRIDGEPORT_IQD: 6419c23f4daSEugene Crosser case IPA_CMD_SETBRIDGEPORT_OSA: 6429f48b9dbSEugene Crosser case IPA_CMD_ADDRESS_CHANGE_NOTIF: 643d19b93f4SJulian Wiedmann if (card->discipline->control_event_handler(card, cmd)) 644c044dc21SEugene Crosser return cmd; 6459f48b9dbSEugene Crosser return NULL; 6464a71df50SFrank Blaschka case IPA_CMD_MODCCID: 6474a71df50SFrank Blaschka return cmd; 6484a71df50SFrank Blaschka case IPA_CMD_REGISTER_LOCAL_ADDR: 649847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "irla"); 65068bba116SJulian Wiedmann return NULL; 6514a71df50SFrank Blaschka case IPA_CMD_UNREGISTER_LOCAL_ADDR: 652847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "urla"); 65368bba116SJulian Wiedmann return NULL; 6544a71df50SFrank Blaschka default: 655d19b93f4SJulian Wiedmann QETH_DBF_MESSAGE(2, "Received data is IPA but not a reply!\n"); 6564a71df50SFrank Blaschka return cmd; 6574a71df50SFrank Blaschka } 658d19b93f4SJulian Wiedmann } 6594a71df50SFrank Blaschka 6604a71df50SFrank Blaschka void qeth_clear_ipacmd_list(struct qeth_card *card) 6614a71df50SFrank Blaschka { 6620951c6baSJulian Wiedmann struct qeth_reply *reply; 6634a71df50SFrank Blaschka unsigned long flags; 6644a71df50SFrank Blaschka 665847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "clipalst"); 6664a71df50SFrank Blaschka 6674a71df50SFrank Blaschka spin_lock_irqsave(&card->lock, flags); 66861e04465SJulian Wiedmann list_for_each_entry(reply, &card->cmd_waiter_list, list) 66961e04465SJulian Wiedmann qeth_notify_reply(reply, -EIO); 6704a71df50SFrank Blaschka spin_unlock_irqrestore(&card->lock, flags); 6714a71df50SFrank Blaschka } 6724a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list); 6734a71df50SFrank Blaschka 6745113fec0SUrsula Braun static int qeth_check_idx_response(struct qeth_card *card, 6755113fec0SUrsula Braun unsigned char *buffer) 6764a71df50SFrank Blaschka { 677d11ba0c4SPeter Tiedemann QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN); 6784a71df50SFrank Blaschka if ((buffer[2] & 0xc0) == 0xc0) { 679e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "received an IDX TERMINATE with cause code %#04x\n", 680d857e111SJulian Wiedmann buffer[4]); 681847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "ckidxres"); 682847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, " idxterm"); 683847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 2, " rc%d", -EIO); 6845113fec0SUrsula Braun if (buffer[4] == 0xf6) { 6855113fec0SUrsula Braun dev_err(&card->gdev->dev, 6865113fec0SUrsula Braun "The qeth device is not configured " 6875113fec0SUrsula Braun "for the OSI layer required by z/VM\n"); 6885113fec0SUrsula Braun return -EPERM; 6895113fec0SUrsula Braun } 6904a71df50SFrank Blaschka return -EIO; 6914a71df50SFrank Blaschka } 6924a71df50SFrank Blaschka return 0; 6934a71df50SFrank Blaschka } 6944a71df50SFrank Blaschka 6954a71df50SFrank Blaschka static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel) 6964a71df50SFrank Blaschka { 6974a71df50SFrank Blaschka __u8 index; 6984a71df50SFrank Blaschka 6994a71df50SFrank Blaschka index = channel->io_buf_no; 7004a71df50SFrank Blaschka do { 7014a71df50SFrank Blaschka if (channel->iob[index].state == BUF_STATE_FREE) { 7024a71df50SFrank Blaschka channel->iob[index].state = BUF_STATE_LOCKED; 703782e4a79SJulian Wiedmann channel->iob[index].timeout = QETH_TIMEOUT; 7044a71df50SFrank Blaschka channel->io_buf_no = (channel->io_buf_no + 1) % 7054a71df50SFrank Blaschka QETH_CMD_BUFFER_NO; 7064a71df50SFrank Blaschka memset(channel->iob[index].data, 0, QETH_BUFSIZE); 7074a71df50SFrank Blaschka return channel->iob + index; 7084a71df50SFrank Blaschka } 7094a71df50SFrank Blaschka index = (index + 1) % QETH_CMD_BUFFER_NO; 7104a71df50SFrank Blaschka } while (index != channel->io_buf_no); 7114a71df50SFrank Blaschka 7124a71df50SFrank Blaschka return NULL; 7134a71df50SFrank Blaschka } 7144a71df50SFrank Blaschka 7154a71df50SFrank Blaschka void qeth_release_buffer(struct qeth_channel *channel, 7164a71df50SFrank Blaschka struct qeth_cmd_buffer *iob) 7174a71df50SFrank Blaschka { 7184a71df50SFrank Blaschka unsigned long flags; 7194a71df50SFrank Blaschka 7204a71df50SFrank Blaschka spin_lock_irqsave(&channel->iob_lock, flags); 7214a71df50SFrank Blaschka iob->state = BUF_STATE_FREE; 722988a747dSJulian Wiedmann iob->callback = NULL; 72354daaca7SJulian Wiedmann if (iob->reply) { 72454daaca7SJulian Wiedmann qeth_put_reply(iob->reply); 72554daaca7SJulian Wiedmann iob->reply = NULL; 72654daaca7SJulian Wiedmann } 7274a71df50SFrank Blaschka spin_unlock_irqrestore(&channel->iob_lock, flags); 728039055b9SUrsula Braun wake_up(&channel->wait_q); 7294a71df50SFrank Blaschka } 7304a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_release_buffer); 7314a71df50SFrank Blaschka 7328f6637b8SJulian Wiedmann static void qeth_release_buffer_cb(struct qeth_card *card, 7338f6637b8SJulian Wiedmann struct qeth_channel *channel, 7348f6637b8SJulian Wiedmann struct qeth_cmd_buffer *iob) 7358f6637b8SJulian Wiedmann { 7368f6637b8SJulian Wiedmann qeth_release_buffer(channel, iob); 7378f6637b8SJulian Wiedmann } 7388f6637b8SJulian Wiedmann 73954daaca7SJulian Wiedmann static void qeth_cancel_cmd(struct qeth_cmd_buffer *iob, int rc) 74054daaca7SJulian Wiedmann { 74154daaca7SJulian Wiedmann struct qeth_reply *reply = iob->reply; 74254daaca7SJulian Wiedmann 74361e04465SJulian Wiedmann if (reply) 74461e04465SJulian Wiedmann qeth_notify_reply(reply, rc); 74554daaca7SJulian Wiedmann qeth_release_buffer(iob->channel, iob); 74654daaca7SJulian Wiedmann } 74754daaca7SJulian Wiedmann 7484a71df50SFrank Blaschka static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel) 7494a71df50SFrank Blaschka { 7504a71df50SFrank Blaschka struct qeth_cmd_buffer *buffer = NULL; 7514a71df50SFrank Blaschka unsigned long flags; 7524a71df50SFrank Blaschka 7534a71df50SFrank Blaschka spin_lock_irqsave(&channel->iob_lock, flags); 7544a71df50SFrank Blaschka buffer = __qeth_get_buffer(channel); 7554a71df50SFrank Blaschka spin_unlock_irqrestore(&channel->iob_lock, flags); 7564a71df50SFrank Blaschka return buffer; 7574a71df50SFrank Blaschka } 7584a71df50SFrank Blaschka 7594a71df50SFrank Blaschka struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *channel) 7604a71df50SFrank Blaschka { 7614a71df50SFrank Blaschka struct qeth_cmd_buffer *buffer; 7624a71df50SFrank Blaschka wait_event(channel->wait_q, 7634a71df50SFrank Blaschka ((buffer = qeth_get_buffer(channel)) != NULL)); 7644a71df50SFrank Blaschka return buffer; 7654a71df50SFrank Blaschka } 7664a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_wait_for_buffer); 7674a71df50SFrank Blaschka 7684a71df50SFrank Blaschka void qeth_clear_cmd_buffers(struct qeth_channel *channel) 7694a71df50SFrank Blaschka { 7704a71df50SFrank Blaschka int cnt; 7714a71df50SFrank Blaschka 7724a71df50SFrank Blaschka for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) 7734a71df50SFrank Blaschka qeth_release_buffer(channel, &channel->iob[cnt]); 7744a71df50SFrank Blaschka channel->io_buf_no = 0; 7754a71df50SFrank Blaschka } 7764a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers); 7774a71df50SFrank Blaschka 778988a747dSJulian Wiedmann static void qeth_issue_next_read_cb(struct qeth_card *card, 7798f6637b8SJulian Wiedmann struct qeth_channel *channel, 7804a71df50SFrank Blaschka struct qeth_cmd_buffer *iob) 7814a71df50SFrank Blaschka { 782d19b93f4SJulian Wiedmann struct qeth_ipa_cmd *cmd = NULL; 7830951c6baSJulian Wiedmann struct qeth_reply *reply = NULL; 7840951c6baSJulian Wiedmann struct qeth_reply *r; 7854a71df50SFrank Blaschka unsigned long flags; 7865113fec0SUrsula Braun int rc = 0; 7874a71df50SFrank Blaschka 788847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "sndctlcb"); 7895113fec0SUrsula Braun rc = qeth_check_idx_response(card, iob->data); 7905113fec0SUrsula Braun switch (rc) { 7915113fec0SUrsula Braun case 0: 7925113fec0SUrsula Braun break; 7935113fec0SUrsula Braun case -EIO: 7944a71df50SFrank Blaschka qeth_clear_ipacmd_list(card); 7954a71df50SFrank Blaschka qeth_schedule_recovery(card); 79601fc3e86SUrsula Braun /* fall through */ 7975113fec0SUrsula Braun default: 7984a71df50SFrank Blaschka goto out; 7994a71df50SFrank Blaschka } 8004a71df50SFrank Blaschka 801d19b93f4SJulian Wiedmann if (IS_IPA(iob->data)) { 802d19b93f4SJulian Wiedmann cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data); 803d19b93f4SJulian Wiedmann cmd = qeth_check_ipa_data(card, cmd); 804d782d80fSJulian Wiedmann if (!cmd) 8054a71df50SFrank Blaschka goto out; 806d782d80fSJulian Wiedmann if (IS_OSN(card) && card->osn_info.assist_cb && 807d782d80fSJulian Wiedmann cmd->hdr.command != IPA_CMD_STARTLAN) { 8084a71df50SFrank Blaschka card->osn_info.assist_cb(card->dev, cmd); 8094a71df50SFrank Blaschka goto out; 8104a71df50SFrank Blaschka } 811d782d80fSJulian Wiedmann } else { 812d782d80fSJulian Wiedmann /* non-IPA commands should only flow during initialization */ 813d782d80fSJulian Wiedmann if (card->state != CARD_STATE_DOWN) 814d782d80fSJulian Wiedmann goto out; 815d782d80fSJulian Wiedmann } 8164a71df50SFrank Blaschka 8170951c6baSJulian Wiedmann /* match against pending cmd requests */ 8184a71df50SFrank Blaschka spin_lock_irqsave(&card->lock, flags); 8190951c6baSJulian Wiedmann list_for_each_entry(r, &card->cmd_waiter_list, list) { 8200951c6baSJulian Wiedmann if ((r->seqno == QETH_IDX_COMMAND_SEQNO) || 8210951c6baSJulian Wiedmann (cmd && (r->seqno == cmd->hdr.seqno))) { 8220951c6baSJulian Wiedmann reply = r; 8230951c6baSJulian Wiedmann /* take the object outside the lock */ 8244a71df50SFrank Blaschka qeth_get_reply(reply); 8250951c6baSJulian Wiedmann break; 8260951c6baSJulian Wiedmann } 8270951c6baSJulian Wiedmann } 8284a71df50SFrank Blaschka spin_unlock_irqrestore(&card->lock, flags); 8290951c6baSJulian Wiedmann 8300951c6baSJulian Wiedmann if (!reply) 8310951c6baSJulian Wiedmann goto out; 8320951c6baSJulian Wiedmann 8334b7ae122SJulian Wiedmann if (!reply->callback) { 8344b7ae122SJulian Wiedmann rc = 0; 8354b7ae122SJulian Wiedmann } else { 8364a71df50SFrank Blaschka if (cmd) { 8370951c6baSJulian Wiedmann reply->offset = (u16)((char *)cmd - (char *)iob->data); 8384b7ae122SJulian Wiedmann rc = reply->callback(card, reply, (unsigned long)cmd); 8394b7ae122SJulian Wiedmann } else { 8404b7ae122SJulian Wiedmann rc = reply->callback(card, reply, (unsigned long)iob); 8414a71df50SFrank Blaschka } 8424b7ae122SJulian Wiedmann } 8434b7ae122SJulian Wiedmann 84461e04465SJulian Wiedmann if (rc <= 0) 84561e04465SJulian Wiedmann qeth_notify_reply(reply, rc); 8464a71df50SFrank Blaschka qeth_put_reply(reply); 8470951c6baSJulian Wiedmann 8484a71df50SFrank Blaschka out: 8494a71df50SFrank Blaschka memcpy(&card->seqno.pdu_hdr_ack, 8504a71df50SFrank Blaschka QETH_PDU_HEADER_SEQ_NO(iob->data), 8514a71df50SFrank Blaschka QETH_SEQ_NO_LENGTH); 8524a71df50SFrank Blaschka qeth_release_buffer(channel, iob); 8534a71df50SFrank Blaschka } 8544a71df50SFrank Blaschka 8554a71df50SFrank Blaschka static int qeth_set_thread_start_bit(struct qeth_card *card, 8564a71df50SFrank Blaschka unsigned long thread) 8574a71df50SFrank Blaschka { 8584a71df50SFrank Blaschka unsigned long flags; 8594a71df50SFrank Blaschka 8604a71df50SFrank Blaschka spin_lock_irqsave(&card->thread_mask_lock, flags); 8614a71df50SFrank Blaschka if (!(card->thread_allowed_mask & thread) || 8624a71df50SFrank Blaschka (card->thread_start_mask & thread)) { 8634a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 8644a71df50SFrank Blaschka return -EPERM; 8654a71df50SFrank Blaschka } 8664a71df50SFrank Blaschka card->thread_start_mask |= thread; 8674a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 8684a71df50SFrank Blaschka return 0; 8694a71df50SFrank Blaschka } 8704a71df50SFrank Blaschka 8714a71df50SFrank Blaschka void qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread) 8724a71df50SFrank Blaschka { 8734a71df50SFrank Blaschka unsigned long flags; 8744a71df50SFrank Blaschka 8754a71df50SFrank Blaschka spin_lock_irqsave(&card->thread_mask_lock, flags); 8764a71df50SFrank Blaschka card->thread_start_mask &= ~thread; 8774a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 8784a71df50SFrank Blaschka wake_up(&card->wait_q); 8794a71df50SFrank Blaschka } 8804a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit); 8814a71df50SFrank Blaschka 8824a71df50SFrank Blaschka void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread) 8834a71df50SFrank Blaschka { 8844a71df50SFrank Blaschka unsigned long flags; 8854a71df50SFrank Blaschka 8864a71df50SFrank Blaschka spin_lock_irqsave(&card->thread_mask_lock, flags); 8874a71df50SFrank Blaschka card->thread_running_mask &= ~thread; 8884a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 8891063e432SJulian Wiedmann wake_up_all(&card->wait_q); 8904a71df50SFrank Blaschka } 8914a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit); 8924a71df50SFrank Blaschka 8934a71df50SFrank Blaschka static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread) 8944a71df50SFrank Blaschka { 8954a71df50SFrank Blaschka unsigned long flags; 8964a71df50SFrank Blaschka int rc = 0; 8974a71df50SFrank Blaschka 8984a71df50SFrank Blaschka spin_lock_irqsave(&card->thread_mask_lock, flags); 8994a71df50SFrank Blaschka if (card->thread_start_mask & thread) { 9004a71df50SFrank Blaschka if ((card->thread_allowed_mask & thread) && 9014a71df50SFrank Blaschka !(card->thread_running_mask & thread)) { 9024a71df50SFrank Blaschka rc = 1; 9034a71df50SFrank Blaschka card->thread_start_mask &= ~thread; 9044a71df50SFrank Blaschka card->thread_running_mask |= thread; 9054a71df50SFrank Blaschka } else 9064a71df50SFrank Blaschka rc = -EPERM; 9074a71df50SFrank Blaschka } 9084a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 9094a71df50SFrank Blaschka return rc; 9104a71df50SFrank Blaschka } 9114a71df50SFrank Blaschka 9124a71df50SFrank Blaschka int qeth_do_run_thread(struct qeth_card *card, unsigned long thread) 9134a71df50SFrank Blaschka { 9144a71df50SFrank Blaschka int rc = 0; 9154a71df50SFrank Blaschka 9164a71df50SFrank Blaschka wait_event(card->wait_q, 9174a71df50SFrank Blaschka (rc = __qeth_do_run_thread(card, thread)) >= 0); 9184a71df50SFrank Blaschka return rc; 9194a71df50SFrank Blaschka } 9204a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_do_run_thread); 9214a71df50SFrank Blaschka 9224a71df50SFrank Blaschka void qeth_schedule_recovery(struct qeth_card *card) 9234a71df50SFrank Blaschka { 924847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "startrec"); 9254a71df50SFrank Blaschka if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0) 9264a71df50SFrank Blaschka schedule_work(&card->kernel_thread_starter); 9274a71df50SFrank Blaschka } 9284a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_schedule_recovery); 9294a71df50SFrank Blaschka 9308d908eb0SJulian Wiedmann static int qeth_get_problem(struct qeth_card *card, struct ccw_device *cdev, 9318d908eb0SJulian Wiedmann struct irb *irb) 9324a71df50SFrank Blaschka { 9334a71df50SFrank Blaschka int dstat, cstat; 9344a71df50SFrank Blaschka char *sense; 9354a71df50SFrank Blaschka 9364a71df50SFrank Blaschka sense = (char *) irb->ecw; 93723d805b6SPeter Oberparleiter cstat = irb->scsw.cmd.cstat; 93823d805b6SPeter Oberparleiter dstat = irb->scsw.cmd.dstat; 9394a71df50SFrank Blaschka 9404a71df50SFrank Blaschka if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK | 9414a71df50SFrank Blaschka SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK | 9424a71df50SFrank Blaschka SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) { 943847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "CGENCHK"); 94474eacdb9SFrank Blaschka dev_warn(&cdev->dev, "The qeth device driver " 94574eacdb9SFrank Blaschka "failed to recover an error on the device\n"); 946e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "check on channel %x with dstat=%#x, cstat=%#x\n", 947e19e5be8SJulian Wiedmann CCW_DEVID(cdev), dstat, cstat); 9484a71df50SFrank Blaschka print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET, 9494a71df50SFrank Blaschka 16, 1, irb, 64, 1); 9504a71df50SFrank Blaschka return 1; 9514a71df50SFrank Blaschka } 9524a71df50SFrank Blaschka 9534a71df50SFrank Blaschka if (dstat & DEV_STAT_UNIT_CHECK) { 9544a71df50SFrank Blaschka if (sense[SENSE_RESETTING_EVENT_BYTE] & 9554a71df50SFrank Blaschka SENSE_RESETTING_EVENT_FLAG) { 956847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "REVIND"); 9574a71df50SFrank Blaschka return 1; 9584a71df50SFrank Blaschka } 9594a71df50SFrank Blaschka if (sense[SENSE_COMMAND_REJECT_BYTE] & 9604a71df50SFrank Blaschka SENSE_COMMAND_REJECT_FLAG) { 961847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "CMDREJi"); 96228a7e4c9SUrsula Braun return 1; 9634a71df50SFrank Blaschka } 9644a71df50SFrank Blaschka if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) { 965847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "AFFE"); 9664a71df50SFrank Blaschka return 1; 9674a71df50SFrank Blaschka } 9684a71df50SFrank Blaschka if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) { 969847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "ZEROSEN"); 9704a71df50SFrank Blaschka return 0; 9714a71df50SFrank Blaschka } 972847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "DGENCHK"); 9734a71df50SFrank Blaschka return 1; 9744a71df50SFrank Blaschka } 9754a71df50SFrank Blaschka return 0; 9764a71df50SFrank Blaschka } 9774a71df50SFrank Blaschka 97854daaca7SJulian Wiedmann static int qeth_check_irb_error(struct qeth_card *card, struct ccw_device *cdev, 97954daaca7SJulian Wiedmann unsigned long intparm, struct irb *irb) 9804a71df50SFrank Blaschka { 9818d908eb0SJulian Wiedmann if (!IS_ERR(irb)) 9824a71df50SFrank Blaschka return 0; 9834a71df50SFrank Blaschka 9844a71df50SFrank Blaschka switch (PTR_ERR(irb)) { 9854a71df50SFrank Blaschka case -EIO: 986e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "i/o-error on channel %x\n", 987e19e5be8SJulian Wiedmann CCW_DEVID(cdev)); 988847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "ckirberr"); 989847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 2, " rc%d", -EIO); 99054daaca7SJulian Wiedmann return -EIO; 9914a71df50SFrank Blaschka case -ETIMEDOUT: 99274eacdb9SFrank Blaschka dev_warn(&cdev->dev, "A hardware operation timed out" 99374eacdb9SFrank Blaschka " on the device\n"); 994847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "ckirberr"); 995847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 2, " rc%d", -ETIMEDOUT); 9964a71df50SFrank Blaschka if (intparm == QETH_RCD_PARM) { 997e95051ffSRickard Strandqvist if (card->data.ccwdev == cdev) { 9984a71df50SFrank Blaschka card->data.state = CH_STATE_DOWN; 9994a71df50SFrank Blaschka wake_up(&card->wait_q); 10004a71df50SFrank Blaschka } 10014a71df50SFrank Blaschka } 100254daaca7SJulian Wiedmann return -ETIMEDOUT; 10034a71df50SFrank Blaschka default: 1004e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "unknown error %ld on channel %x\n", 1005e19e5be8SJulian Wiedmann PTR_ERR(irb), CCW_DEVID(cdev)); 1006847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "ckirberr"); 1007847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, " rc???"); 10084a71df50SFrank Blaschka return PTR_ERR(irb); 10094a71df50SFrank Blaschka } 101054daaca7SJulian Wiedmann } 10114a71df50SFrank Blaschka 10124a71df50SFrank Blaschka static void qeth_irq(struct ccw_device *cdev, unsigned long intparm, 10134a71df50SFrank Blaschka struct irb *irb) 10144a71df50SFrank Blaschka { 10154a71df50SFrank Blaschka int rc; 10164a71df50SFrank Blaschka int cstat, dstat; 1017db71bbbdSJulian Wiedmann struct qeth_cmd_buffer *iob = NULL; 10188d908eb0SJulian Wiedmann struct ccwgroup_device *gdev; 10194a71df50SFrank Blaschka struct qeth_channel *channel; 10204a71df50SFrank Blaschka struct qeth_card *card; 10214a71df50SFrank Blaschka 10228d908eb0SJulian Wiedmann /* while we hold the ccwdev lock, this stays valid: */ 10238d908eb0SJulian Wiedmann gdev = dev_get_drvdata(&cdev->dev); 10248d908eb0SJulian Wiedmann card = dev_get_drvdata(&gdev->dev); 10254a71df50SFrank Blaschka if (!card) 10264a71df50SFrank Blaschka return; 10274a71df50SFrank Blaschka 1028847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "irq"); 1029847a50fdSCarsten Otte 10304a71df50SFrank Blaschka if (card->read.ccwdev == cdev) { 10314a71df50SFrank Blaschka channel = &card->read; 1032847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "read"); 10334a71df50SFrank Blaschka } else if (card->write.ccwdev == cdev) { 10344a71df50SFrank Blaschka channel = &card->write; 1035847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "write"); 10364a71df50SFrank Blaschka } else { 10374a71df50SFrank Blaschka channel = &card->data; 1038847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "data"); 10394a71df50SFrank Blaschka } 1040db71bbbdSJulian Wiedmann 1041db71bbbdSJulian Wiedmann if (qeth_intparm_is_iob(intparm)) 1042db71bbbdSJulian Wiedmann iob = (struct qeth_cmd_buffer *) __va((addr_t)intparm); 1043db71bbbdSJulian Wiedmann 104454daaca7SJulian Wiedmann rc = qeth_check_irb_error(card, cdev, intparm, irb); 104554daaca7SJulian Wiedmann if (rc) { 1046db71bbbdSJulian Wiedmann /* IO was terminated, free its resources. */ 1047db71bbbdSJulian Wiedmann if (iob) 104854daaca7SJulian Wiedmann qeth_cancel_cmd(iob, rc); 1049db71bbbdSJulian Wiedmann atomic_set(&channel->irq_pending, 0); 1050db71bbbdSJulian Wiedmann wake_up(&card->wait_q); 1051db71bbbdSJulian Wiedmann return; 1052db71bbbdSJulian Wiedmann } 1053db71bbbdSJulian Wiedmann 10544a71df50SFrank Blaschka atomic_set(&channel->irq_pending, 0); 10554a71df50SFrank Blaschka 105623d805b6SPeter Oberparleiter if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC)) 10574a71df50SFrank Blaschka channel->state = CH_STATE_STOPPED; 10584a71df50SFrank Blaschka 105923d805b6SPeter Oberparleiter if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC)) 10604a71df50SFrank Blaschka channel->state = CH_STATE_HALTED; 10614a71df50SFrank Blaschka 10624a71df50SFrank Blaschka /*let's wake up immediately on data channel*/ 10634a71df50SFrank Blaschka if ((channel == &card->data) && (intparm != 0) && 10644a71df50SFrank Blaschka (intparm != QETH_RCD_PARM)) 10654a71df50SFrank Blaschka goto out; 10664a71df50SFrank Blaschka 10674a71df50SFrank Blaschka if (intparm == QETH_CLEAR_CHANNEL_PARM) { 1068847a50fdSCarsten Otte QETH_CARD_TEXT(card, 6, "clrchpar"); 10694a71df50SFrank Blaschka /* we don't have to handle this further */ 10704a71df50SFrank Blaschka intparm = 0; 10714a71df50SFrank Blaschka } 10724a71df50SFrank Blaschka if (intparm == QETH_HALT_CHANNEL_PARM) { 1073847a50fdSCarsten Otte QETH_CARD_TEXT(card, 6, "hltchpar"); 10744a71df50SFrank Blaschka /* we don't have to handle this further */ 10754a71df50SFrank Blaschka intparm = 0; 10764a71df50SFrank Blaschka } 1077db71bbbdSJulian Wiedmann 1078db71bbbdSJulian Wiedmann cstat = irb->scsw.cmd.cstat; 1079db71bbbdSJulian Wiedmann dstat = irb->scsw.cmd.dstat; 1080db71bbbdSJulian Wiedmann 10814a71df50SFrank Blaschka if ((dstat & DEV_STAT_UNIT_EXCEP) || 10824a71df50SFrank Blaschka (dstat & DEV_STAT_UNIT_CHECK) || 10834a71df50SFrank Blaschka (cstat)) { 10844a71df50SFrank Blaschka if (irb->esw.esw0.erw.cons) { 108574eacdb9SFrank Blaschka dev_warn(&channel->ccwdev->dev, 108674eacdb9SFrank Blaschka "The qeth device driver failed to recover " 108774eacdb9SFrank Blaschka "an error on the device\n"); 1088e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "sense data available on channel %x: cstat %#X dstat %#X\n", 1089e19e5be8SJulian Wiedmann CCW_DEVID(channel->ccwdev), cstat, 1090e19e5be8SJulian Wiedmann dstat); 10914a71df50SFrank Blaschka print_hex_dump(KERN_WARNING, "qeth: irb ", 10924a71df50SFrank Blaschka DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1); 10934a71df50SFrank Blaschka print_hex_dump(KERN_WARNING, "qeth: sense data ", 10944a71df50SFrank Blaschka DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1); 10954a71df50SFrank Blaschka } 10964a71df50SFrank Blaschka if (intparm == QETH_RCD_PARM) { 10974a71df50SFrank Blaschka channel->state = CH_STATE_DOWN; 10984a71df50SFrank Blaschka goto out; 10994a71df50SFrank Blaschka } 11008d908eb0SJulian Wiedmann rc = qeth_get_problem(card, cdev, irb); 11014a71df50SFrank Blaschka if (rc) { 1102a6c3d939SJulian Wiedmann card->read_or_write_problem = 1; 11035065b2ddSJulian Wiedmann if (iob) 110454daaca7SJulian Wiedmann qeth_cancel_cmd(iob, rc); 110528a7e4c9SUrsula Braun qeth_clear_ipacmd_list(card); 11064a71df50SFrank Blaschka qeth_schedule_recovery(card); 11074a71df50SFrank Blaschka goto out; 11084a71df50SFrank Blaschka } 11094a71df50SFrank Blaschka } 11104a71df50SFrank Blaschka 11114a71df50SFrank Blaschka if (intparm == QETH_RCD_PARM) { 11124a71df50SFrank Blaschka channel->state = CH_STATE_RCD_DONE; 11134a71df50SFrank Blaschka goto out; 11144a71df50SFrank Blaschka } 11154a71df50SFrank Blaschka if (channel == &card->data) 11164a71df50SFrank Blaschka return; 11174a71df50SFrank Blaschka if (channel == &card->read && 11184a71df50SFrank Blaschka channel->state == CH_STATE_UP) 111917bf8c9bSJulian Wiedmann __qeth_issue_next_read(card); 11204a71df50SFrank Blaschka 1121db71bbbdSJulian Wiedmann if (iob && iob->callback) 11228f6637b8SJulian Wiedmann iob->callback(card, iob->channel, iob); 11234a71df50SFrank Blaschka 11244a71df50SFrank Blaschka out: 11254a71df50SFrank Blaschka wake_up(&card->wait_q); 11264a71df50SFrank Blaschka return; 11274a71df50SFrank Blaschka } 11284a71df50SFrank Blaschka 1129b3332930SFrank Blaschka static void qeth_notify_skbs(struct qeth_qdio_out_q *q, 1130b3332930SFrank Blaschka struct qeth_qdio_out_buffer *buf, 1131b3332930SFrank Blaschka enum iucv_tx_notify notification) 1132b3332930SFrank Blaschka { 1133b3332930SFrank Blaschka struct sk_buff *skb; 1134b3332930SFrank Blaschka 1135dc149e37SJulian Wiedmann skb_queue_walk(&buf->skb_list, skb) { 1136b3332930SFrank Blaschka QETH_CARD_TEXT_(q->card, 5, "skbn%d", notification); 1137b3332930SFrank Blaschka QETH_CARD_TEXT_(q->card, 5, "%lx", (long) skb); 11386a3123d0SJulian Wiedmann if (skb->protocol == htons(ETH_P_AF_IUCV) && skb->sk) 11396a3123d0SJulian Wiedmann iucv_sk(skb->sk)->sk_txnotify(skb, notification); 1140b3332930SFrank Blaschka } 1141b3332930SFrank Blaschka } 1142b3332930SFrank Blaschka 1143b3332930SFrank Blaschka static void qeth_release_skbs(struct qeth_qdio_out_buffer *buf) 1144b3332930SFrank Blaschka { 1145104b4859SJulian Wiedmann struct sk_buff *skb; 1146104b4859SJulian Wiedmann 114772861ae7SEinar Lueck /* release may never happen from within CQ tasklet scope */ 114818af5c17SStefan Raspl WARN_ON_ONCE(atomic_read(&buf->state) == QETH_QDIO_BUF_IN_CQ); 1149b3332930SFrank Blaschka 11506a3123d0SJulian Wiedmann if (atomic_read(&buf->state) == QETH_QDIO_BUF_PENDING) 11516a3123d0SJulian Wiedmann qeth_notify_skbs(buf->q, buf, TX_NOTIFY_GENERALERROR); 11526a3123d0SJulian Wiedmann 1153104b4859SJulian Wiedmann while ((skb = __skb_dequeue(&buf->skb_list)) != NULL) 1154104b4859SJulian Wiedmann consume_skb(skb); 1155b3332930SFrank Blaschka } 1156b3332930SFrank Blaschka 1157b67d801fSUrsula Braun static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue, 11583b346c18SJulian Wiedmann struct qeth_qdio_out_buffer *buf) 11594a71df50SFrank Blaschka { 11604a71df50SFrank Blaschka int i; 11614a71df50SFrank Blaschka 11624a71df50SFrank Blaschka /* is PCI flag set on buffer? */ 11633ec90878SJan Glauber if (buf->buffer->element[0].sflags & SBAL_SFLAGS0_PCI_REQ) 11644a71df50SFrank Blaschka atomic_dec(&queue->set_pci_flags_count); 11654a71df50SFrank Blaschka 1166b3332930SFrank Blaschka qeth_release_skbs(buf); 11673b346c18SJulian Wiedmann 11684a71df50SFrank Blaschka for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) { 1169683d718aSFrank Blaschka if (buf->buffer->element[i].addr && buf->is_header[i]) 1170683d718aSFrank Blaschka kmem_cache_free(qeth_core_header_cache, 1171683d718aSFrank Blaschka buf->buffer->element[i].addr); 1172683d718aSFrank Blaschka buf->is_header[i] = 0; 11734a71df50SFrank Blaschka } 11743b346c18SJulian Wiedmann 11753b346c18SJulian Wiedmann qeth_scrub_qdio_buffer(buf->buffer, 11763b346c18SJulian Wiedmann QETH_MAX_BUFFER_ELEMENTS(queue->card)); 11774a71df50SFrank Blaschka buf->next_element_to_fill = 0; 11783b346c18SJulian Wiedmann atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY); 11790da9581dSEinar Lueck } 11800da9581dSEinar Lueck 118141c47da3SJulian Wiedmann static void qeth_drain_output_queue(struct qeth_qdio_out_q *q, bool free) 11820da9581dSEinar Lueck { 11830da9581dSEinar Lueck int j; 11840da9581dSEinar Lueck 11850da9581dSEinar Lueck for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { 11860da9581dSEinar Lueck if (!q->bufs[j]) 11870da9581dSEinar Lueck continue; 118872861ae7SEinar Lueck qeth_cleanup_handled_pending(q, j, 1); 11893b346c18SJulian Wiedmann qeth_clear_output_buffer(q, q->bufs[j]); 11900da9581dSEinar Lueck if (free) { 11910da9581dSEinar Lueck kmem_cache_free(qeth_qdio_outbuf_cache, q->bufs[j]); 11920da9581dSEinar Lueck q->bufs[j] = NULL; 11930da9581dSEinar Lueck } 11940da9581dSEinar Lueck } 11954a71df50SFrank Blaschka } 11964a71df50SFrank Blaschka 119741c47da3SJulian Wiedmann void qeth_drain_output_queues(struct qeth_card *card) 11984a71df50SFrank Blaschka { 11990da9581dSEinar Lueck int i; 12004a71df50SFrank Blaschka 1201847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "clearqdbf"); 12024a71df50SFrank Blaschka /* clear outbound buffers to free skbs */ 12030da9581dSEinar Lueck for (i = 0; i < card->qdio.no_out_queues; ++i) { 120441c47da3SJulian Wiedmann if (card->qdio.out_qs[i]) 120541c47da3SJulian Wiedmann qeth_drain_output_queue(card->qdio.out_qs[i], false); 12060da9581dSEinar Lueck } 12074a71df50SFrank Blaschka } 120841c47da3SJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_drain_output_queues); 12094a71df50SFrank Blaschka 12104a71df50SFrank Blaschka static void qeth_free_buffer_pool(struct qeth_card *card) 12114a71df50SFrank Blaschka { 12124a71df50SFrank Blaschka struct qeth_buffer_pool_entry *pool_entry, *tmp; 12134a71df50SFrank Blaschka int i = 0; 12144a71df50SFrank Blaschka list_for_each_entry_safe(pool_entry, tmp, 12154a71df50SFrank Blaschka &card->qdio.init_pool.entry_list, init_list){ 12164a71df50SFrank Blaschka for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) 12174a71df50SFrank Blaschka free_page((unsigned long)pool_entry->elements[i]); 12184a71df50SFrank Blaschka list_del(&pool_entry->init_list); 12194a71df50SFrank Blaschka kfree(pool_entry); 12204a71df50SFrank Blaschka } 12214a71df50SFrank Blaschka } 12224a71df50SFrank Blaschka 12234a71df50SFrank Blaschka static void qeth_clean_channel(struct qeth_channel *channel) 12244a71df50SFrank Blaschka { 1225121ca39aSJulian Wiedmann struct ccw_device *cdev = channel->ccwdev; 12264a71df50SFrank Blaschka int cnt; 12274a71df50SFrank Blaschka 1228d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "freech"); 1229121ca39aSJulian Wiedmann 1230121ca39aSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(cdev)); 1231121ca39aSJulian Wiedmann cdev->handler = NULL; 1232121ca39aSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(cdev)); 1233121ca39aSJulian Wiedmann 12344a71df50SFrank Blaschka for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) 12354a71df50SFrank Blaschka kfree(channel->iob[cnt].data); 1236f15cdaf2SJulian Wiedmann kfree(channel->ccw); 12374a71df50SFrank Blaschka } 12384a71df50SFrank Blaschka 1239121ca39aSJulian Wiedmann static int qeth_setup_channel(struct qeth_channel *channel, bool alloc_buffers) 1240121ca39aSJulian Wiedmann { 1241121ca39aSJulian Wiedmann struct ccw_device *cdev = channel->ccwdev; 1242121ca39aSJulian Wiedmann int cnt; 1243121ca39aSJulian Wiedmann 1244121ca39aSJulian Wiedmann QETH_DBF_TEXT(SETUP, 2, "setupch"); 1245121ca39aSJulian Wiedmann 1246121ca39aSJulian Wiedmann channel->ccw = kmalloc(sizeof(struct ccw1), GFP_KERNEL | GFP_DMA); 1247121ca39aSJulian Wiedmann if (!channel->ccw) 1248121ca39aSJulian Wiedmann return -ENOMEM; 1249121ca39aSJulian Wiedmann channel->state = CH_STATE_DOWN; 1250121ca39aSJulian Wiedmann atomic_set(&channel->irq_pending, 0); 1251121ca39aSJulian Wiedmann init_waitqueue_head(&channel->wait_q); 1252121ca39aSJulian Wiedmann 1253121ca39aSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(cdev)); 1254121ca39aSJulian Wiedmann cdev->handler = qeth_irq; 1255121ca39aSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(cdev)); 1256121ca39aSJulian Wiedmann 1257121ca39aSJulian Wiedmann if (!alloc_buffers) 1258121ca39aSJulian Wiedmann return 0; 1259121ca39aSJulian Wiedmann 1260121ca39aSJulian Wiedmann for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) { 1261500abbf0SJulian Wiedmann channel->iob[cnt].data = kmalloc(QETH_BUFSIZE, 1262500abbf0SJulian Wiedmann GFP_KERNEL | GFP_DMA); 1263121ca39aSJulian Wiedmann if (channel->iob[cnt].data == NULL) 1264121ca39aSJulian Wiedmann break; 1265121ca39aSJulian Wiedmann channel->iob[cnt].state = BUF_STATE_FREE; 1266121ca39aSJulian Wiedmann channel->iob[cnt].channel = channel; 1267121ca39aSJulian Wiedmann } 1268121ca39aSJulian Wiedmann if (cnt < QETH_CMD_BUFFER_NO) { 1269121ca39aSJulian Wiedmann qeth_clean_channel(channel); 1270121ca39aSJulian Wiedmann return -ENOMEM; 1271121ca39aSJulian Wiedmann } 1272121ca39aSJulian Wiedmann channel->io_buf_no = 0; 1273121ca39aSJulian Wiedmann spin_lock_init(&channel->iob_lock); 1274121ca39aSJulian Wiedmann 1275121ca39aSJulian Wiedmann return 0; 1276121ca39aSJulian Wiedmann } 1277121ca39aSJulian Wiedmann 127873dc2dafSJulian Wiedmann static void qeth_osa_set_output_queues(struct qeth_card *card, bool single) 1279725b9c04SSebastian Ott { 128073dc2dafSJulian Wiedmann unsigned int count = single ? 1 : card->dev->num_tx_queues; 128173dc2dafSJulian Wiedmann 128273dc2dafSJulian Wiedmann rtnl_lock(); 128373dc2dafSJulian Wiedmann netif_set_real_num_tx_queues(card->dev, count); 128473dc2dafSJulian Wiedmann rtnl_unlock(); 128573dc2dafSJulian Wiedmann 128673dc2dafSJulian Wiedmann if (card->qdio.no_out_queues == count) 128773dc2dafSJulian Wiedmann return; 128873dc2dafSJulian Wiedmann 128973dc2dafSJulian Wiedmann if (atomic_read(&card->qdio.state) != QETH_QDIO_UNINITIALIZED) 129041c47da3SJulian Wiedmann qeth_free_qdio_queues(card); 1291725b9c04SSebastian Ott 129273dc2dafSJulian Wiedmann if (count == 1) 1293725b9c04SSebastian Ott dev_info(&card->gdev->dev, "Priority Queueing not supported\n"); 1294725b9c04SSebastian Ott 129573dc2dafSJulian Wiedmann card->qdio.default_out_queue = single ? 0 : QETH_DEFAULT_QUEUE; 129673dc2dafSJulian Wiedmann card->qdio.no_out_queues = count; 1297725b9c04SSebastian Ott } 1298725b9c04SSebastian Ott 1299a4cdc9baSJulian Wiedmann static int qeth_update_from_chp_desc(struct qeth_card *card) 13004a71df50SFrank Blaschka { 13014a71df50SFrank Blaschka struct ccw_device *ccwdev; 1302ded27d8dSSebastian Ott struct channel_path_desc_fmt0 *chp_dsc; 13034a71df50SFrank Blaschka 13045113fec0SUrsula Braun QETH_DBF_TEXT(SETUP, 2, "chp_desc"); 13054a71df50SFrank Blaschka 13064a71df50SFrank Blaschka ccwdev = card->data.ccwdev; 1307725b9c04SSebastian Ott chp_dsc = ccw_device_get_chp_desc(ccwdev, 0); 1308725b9c04SSebastian Ott if (!chp_dsc) 1309a4cdc9baSJulian Wiedmann return -ENOMEM; 1310725b9c04SSebastian Ott 1311d0ff1f52SUrsula Braun card->info.func_level = 0x4100 + chp_dsc->desc; 1312725b9c04SSebastian Ott 131373dc2dafSJulian Wiedmann if (IS_OSD(card) || IS_OSX(card)) 1314725b9c04SSebastian Ott /* CHPP field bit 6 == 1 -> single queue */ 131573dc2dafSJulian Wiedmann qeth_osa_set_output_queues(card, chp_dsc->chpp & 0x02); 131673dc2dafSJulian Wiedmann 1317d0ff1f52SUrsula Braun kfree(chp_dsc); 13185113fec0SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "nr:%x", card->qdio.no_out_queues); 13195113fec0SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "lvl:%02x", card->info.func_level); 1320a4cdc9baSJulian Wiedmann return 0; 13214a71df50SFrank Blaschka } 13224a71df50SFrank Blaschka 13234a71df50SFrank Blaschka static void qeth_init_qdio_info(struct qeth_card *card) 13244a71df50SFrank Blaschka { 1325d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 4, "intqdinf"); 13264a71df50SFrank Blaschka atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); 132795f4d8b7SJulian Wiedmann card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT; 132895f4d8b7SJulian Wiedmann card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; 132995f4d8b7SJulian Wiedmann 13304a71df50SFrank Blaschka /* inbound */ 1331ed2e93efSJulian Wiedmann card->qdio.no_in_queues = 1; 13324a71df50SFrank Blaschka card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT; 1333dcf4ae2dSFrank Blaschka if (card->info.type == QETH_CARD_TYPE_IQD) 1334dcf4ae2dSFrank Blaschka card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_HSDEFAULT; 1335dcf4ae2dSFrank Blaschka else 13364a71df50SFrank Blaschka card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT; 13374a71df50SFrank Blaschka card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count; 13384a71df50SFrank Blaschka INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list); 13394a71df50SFrank Blaschka INIT_LIST_HEAD(&card->qdio.init_pool.entry_list); 13404a71df50SFrank Blaschka } 13414a71df50SFrank Blaschka 134295f4d8b7SJulian Wiedmann static void qeth_set_initial_options(struct qeth_card *card) 13434a71df50SFrank Blaschka { 13444a71df50SFrank Blaschka card->options.route4.type = NO_ROUTER; 13454a71df50SFrank Blaschka card->options.route6.type = NO_ROUTER; 13464a71df50SFrank Blaschka card->options.rx_sg_cb = QETH_RX_SG_CB; 1347d64ecc22SEinar Lueck card->options.isolation = ISOLATION_MODE_NONE; 13480da9581dSEinar Lueck card->options.cq = QETH_CQ_DISABLED; 13494fda3354SJulian Wiedmann card->options.layer = QETH_DISCIPLINE_UNDETERMINED; 13504a71df50SFrank Blaschka } 13514a71df50SFrank Blaschka 13524a71df50SFrank Blaschka static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread) 13534a71df50SFrank Blaschka { 13544a71df50SFrank Blaschka unsigned long flags; 13554a71df50SFrank Blaschka int rc = 0; 13564a71df50SFrank Blaschka 13574a71df50SFrank Blaschka spin_lock_irqsave(&card->thread_mask_lock, flags); 1358847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 4, " %02x%02x%02x", 13594a71df50SFrank Blaschka (u8) card->thread_start_mask, 13604a71df50SFrank Blaschka (u8) card->thread_allowed_mask, 13614a71df50SFrank Blaschka (u8) card->thread_running_mask); 13624a71df50SFrank Blaschka rc = (card->thread_start_mask & thread); 13634a71df50SFrank Blaschka spin_unlock_irqrestore(&card->thread_mask_lock, flags); 13644a71df50SFrank Blaschka return rc; 13654a71df50SFrank Blaschka } 13664a71df50SFrank Blaschka 13674a71df50SFrank Blaschka static void qeth_start_kernel_thread(struct work_struct *work) 13684a71df50SFrank Blaschka { 13693f36b890SFrank Blaschka struct task_struct *ts; 13704a71df50SFrank Blaschka struct qeth_card *card = container_of(work, struct qeth_card, 13714a71df50SFrank Blaschka kernel_thread_starter); 1372847a50fdSCarsten Otte QETH_CARD_TEXT(card , 2, "strthrd"); 13734a71df50SFrank Blaschka 13744a71df50SFrank Blaschka if (card->read.state != CH_STATE_UP && 13754a71df50SFrank Blaschka card->write.state != CH_STATE_UP) 13764a71df50SFrank Blaschka return; 13773f36b890SFrank Blaschka if (qeth_do_start_thread(card, QETH_RECOVER_THREAD)) { 1378c041f2d4SSebastian Ott ts = kthread_run(card->discipline->recover, (void *)card, 13794a71df50SFrank Blaschka "qeth_recover"); 13803f36b890SFrank Blaschka if (IS_ERR(ts)) { 13813f36b890SFrank Blaschka qeth_clear_thread_start_bit(card, QETH_RECOVER_THREAD); 13823f36b890SFrank Blaschka qeth_clear_thread_running_bit(card, 13833f36b890SFrank Blaschka QETH_RECOVER_THREAD); 13843f36b890SFrank Blaschka } 13853f36b890SFrank Blaschka } 13864a71df50SFrank Blaschka } 13874a71df50SFrank Blaschka 1388bca51650SThomas Richter static void qeth_buffer_reclaim_work(struct work_struct *); 138995f4d8b7SJulian Wiedmann static void qeth_setup_card(struct qeth_card *card) 13904a71df50SFrank Blaschka { 1391d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "setupcrd"); 1392d11ba0c4SPeter Tiedemann QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); 13934a71df50SFrank Blaschka 139495f4d8b7SJulian Wiedmann card->info.type = CARD_RDEV(card)->id.driver_info; 13954a71df50SFrank Blaschka card->state = CARD_STATE_DOWN; 13964a71df50SFrank Blaschka spin_lock_init(&card->lock); 13974a71df50SFrank Blaschka spin_lock_init(&card->thread_mask_lock); 1398c4949f07SFrank Blaschka mutex_init(&card->conf_mutex); 13999dc48cccSUrsula Braun mutex_init(&card->discipline_mutex); 14004a71df50SFrank Blaschka INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread); 14014a71df50SFrank Blaschka INIT_LIST_HEAD(&card->cmd_waiter_list); 14024a71df50SFrank Blaschka init_waitqueue_head(&card->wait_q); 140395f4d8b7SJulian Wiedmann qeth_set_initial_options(card); 14044a71df50SFrank Blaschka /* IP address takeover */ 14054a71df50SFrank Blaschka INIT_LIST_HEAD(&card->ipato.entries); 14064a71df50SFrank Blaschka qeth_init_qdio_info(card); 1407b3332930SFrank Blaschka INIT_DELAYED_WORK(&card->buffer_reclaim_work, qeth_buffer_reclaim_work); 14080f54761dSStefan Raspl INIT_WORK(&card->close_dev_work, qeth_close_dev_handler); 14094a71df50SFrank Blaschka } 14104a71df50SFrank Blaschka 14116bcac508SMartin Schwidefsky static void qeth_core_sl_print(struct seq_file *m, struct service_level *slr) 14126bcac508SMartin Schwidefsky { 14136bcac508SMartin Schwidefsky struct qeth_card *card = container_of(slr, struct qeth_card, 14146bcac508SMartin Schwidefsky qeth_service_level); 14150d788c7dSKlaus-Dieter Wacker if (card->info.mcl_level[0]) 14160d788c7dSKlaus-Dieter Wacker seq_printf(m, "qeth: %s firmware level %s\n", 14170d788c7dSKlaus-Dieter Wacker CARD_BUS_ID(card), card->info.mcl_level); 14186bcac508SMartin Schwidefsky } 14196bcac508SMartin Schwidefsky 1420121ca39aSJulian Wiedmann static struct qeth_card *qeth_alloc_card(struct ccwgroup_device *gdev) 14214a71df50SFrank Blaschka { 14224a71df50SFrank Blaschka struct qeth_card *card; 14234a71df50SFrank Blaschka 1424d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "alloccrd"); 1425f15cdaf2SJulian Wiedmann card = kzalloc(sizeof(*card), GFP_KERNEL); 14264a71df50SFrank Blaschka if (!card) 142776b11f8eSUrsula Braun goto out; 1428d11ba0c4SPeter Tiedemann QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); 1429121ca39aSJulian Wiedmann 1430121ca39aSJulian Wiedmann card->gdev = gdev; 1431a2eb0ad5SJulian Wiedmann dev_set_drvdata(&gdev->dev, card); 1432121ca39aSJulian Wiedmann CARD_RDEV(card) = gdev->cdev[0]; 1433121ca39aSJulian Wiedmann CARD_WDEV(card) = gdev->cdev[1]; 1434121ca39aSJulian Wiedmann CARD_DDEV(card) = gdev->cdev[2]; 1435c0a2e4d1SJulian Wiedmann 14367686e4b6SJulian Wiedmann card->event_wq = alloc_ordered_workqueue("%s_event", 0, 14377686e4b6SJulian Wiedmann dev_name(&gdev->dev)); 1438c0a2e4d1SJulian Wiedmann if (!card->event_wq) 1439c0a2e4d1SJulian Wiedmann goto out_wq; 144024142fd8SJulian Wiedmann if (qeth_setup_channel(&card->read, true)) 144176b11f8eSUrsula Braun goto out_ip; 144224142fd8SJulian Wiedmann if (qeth_setup_channel(&card->write, true)) 144376b11f8eSUrsula Braun goto out_channel; 144424142fd8SJulian Wiedmann if (qeth_setup_channel(&card->data, false)) 144524142fd8SJulian Wiedmann goto out_data; 14466bcac508SMartin Schwidefsky card->qeth_service_level.seq_print = qeth_core_sl_print; 14476bcac508SMartin Schwidefsky register_service_level(&card->qeth_service_level); 14484a71df50SFrank Blaschka return card; 144976b11f8eSUrsula Braun 145024142fd8SJulian Wiedmann out_data: 145124142fd8SJulian Wiedmann qeth_clean_channel(&card->write); 145276b11f8eSUrsula Braun out_channel: 145376b11f8eSUrsula Braun qeth_clean_channel(&card->read); 145476b11f8eSUrsula Braun out_ip: 1455c0a2e4d1SJulian Wiedmann destroy_workqueue(card->event_wq); 1456c0a2e4d1SJulian Wiedmann out_wq: 1457a2eb0ad5SJulian Wiedmann dev_set_drvdata(&gdev->dev, NULL); 145876b11f8eSUrsula Braun kfree(card); 145976b11f8eSUrsula Braun out: 146076b11f8eSUrsula Braun return NULL; 14614a71df50SFrank Blaschka } 14624a71df50SFrank Blaschka 14638d908eb0SJulian Wiedmann static int qeth_clear_channel(struct qeth_card *card, 14648d908eb0SJulian Wiedmann struct qeth_channel *channel) 14654a71df50SFrank Blaschka { 14664a71df50SFrank Blaschka int rc; 14674a71df50SFrank Blaschka 1468847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "clearch"); 1469ed47155bSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(channel->ccwdev)); 14704a71df50SFrank Blaschka rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM); 1471ed47155bSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(channel->ccwdev)); 14724a71df50SFrank Blaschka 14734a71df50SFrank Blaschka if (rc) 14744a71df50SFrank Blaschka return rc; 14754a71df50SFrank Blaschka rc = wait_event_interruptible_timeout(card->wait_q, 14764a71df50SFrank Blaschka channel->state == CH_STATE_STOPPED, QETH_TIMEOUT); 14774a71df50SFrank Blaschka if (rc == -ERESTARTSYS) 14784a71df50SFrank Blaschka return rc; 14794a71df50SFrank Blaschka if (channel->state != CH_STATE_STOPPED) 14804a71df50SFrank Blaschka return -ETIME; 14814a71df50SFrank Blaschka channel->state = CH_STATE_DOWN; 14824a71df50SFrank Blaschka return 0; 14834a71df50SFrank Blaschka } 14844a71df50SFrank Blaschka 14858d908eb0SJulian Wiedmann static int qeth_halt_channel(struct qeth_card *card, 14868d908eb0SJulian Wiedmann struct qeth_channel *channel) 14874a71df50SFrank Blaschka { 14884a71df50SFrank Blaschka int rc; 14894a71df50SFrank Blaschka 1490847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "haltch"); 1491ed47155bSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(channel->ccwdev)); 14924a71df50SFrank Blaschka rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM); 1493ed47155bSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(channel->ccwdev)); 14944a71df50SFrank Blaschka 14954a71df50SFrank Blaschka if (rc) 14964a71df50SFrank Blaschka return rc; 14974a71df50SFrank Blaschka rc = wait_event_interruptible_timeout(card->wait_q, 14984a71df50SFrank Blaschka channel->state == CH_STATE_HALTED, QETH_TIMEOUT); 14994a71df50SFrank Blaschka if (rc == -ERESTARTSYS) 15004a71df50SFrank Blaschka return rc; 15014a71df50SFrank Blaschka if (channel->state != CH_STATE_HALTED) 15024a71df50SFrank Blaschka return -ETIME; 15034a71df50SFrank Blaschka return 0; 15044a71df50SFrank Blaschka } 15054a71df50SFrank Blaschka 15064a71df50SFrank Blaschka static int qeth_halt_channels(struct qeth_card *card) 15074a71df50SFrank Blaschka { 15084a71df50SFrank Blaschka int rc1 = 0, rc2 = 0, rc3 = 0; 15094a71df50SFrank Blaschka 1510847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "haltchs"); 15118d908eb0SJulian Wiedmann rc1 = qeth_halt_channel(card, &card->read); 15128d908eb0SJulian Wiedmann rc2 = qeth_halt_channel(card, &card->write); 15138d908eb0SJulian Wiedmann rc3 = qeth_halt_channel(card, &card->data); 15144a71df50SFrank Blaschka if (rc1) 15154a71df50SFrank Blaschka return rc1; 15164a71df50SFrank Blaschka if (rc2) 15174a71df50SFrank Blaschka return rc2; 15184a71df50SFrank Blaschka return rc3; 15194a71df50SFrank Blaschka } 15204a71df50SFrank Blaschka 15214a71df50SFrank Blaschka static int qeth_clear_channels(struct qeth_card *card) 15224a71df50SFrank Blaschka { 15234a71df50SFrank Blaschka int rc1 = 0, rc2 = 0, rc3 = 0; 15244a71df50SFrank Blaschka 1525847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "clearchs"); 15268d908eb0SJulian Wiedmann rc1 = qeth_clear_channel(card, &card->read); 15278d908eb0SJulian Wiedmann rc2 = qeth_clear_channel(card, &card->write); 15288d908eb0SJulian Wiedmann rc3 = qeth_clear_channel(card, &card->data); 15294a71df50SFrank Blaschka if (rc1) 15304a71df50SFrank Blaschka return rc1; 15314a71df50SFrank Blaschka if (rc2) 15324a71df50SFrank Blaschka return rc2; 15334a71df50SFrank Blaschka return rc3; 15344a71df50SFrank Blaschka } 15354a71df50SFrank Blaschka 15364a71df50SFrank Blaschka static int qeth_clear_halt_card(struct qeth_card *card, int halt) 15374a71df50SFrank Blaschka { 15384a71df50SFrank Blaschka int rc = 0; 15394a71df50SFrank Blaschka 1540847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "clhacrd"); 15414a71df50SFrank Blaschka 15424a71df50SFrank Blaschka if (halt) 15434a71df50SFrank Blaschka rc = qeth_halt_channels(card); 15444a71df50SFrank Blaschka if (rc) 15454a71df50SFrank Blaschka return rc; 15464a71df50SFrank Blaschka return qeth_clear_channels(card); 15474a71df50SFrank Blaschka } 15484a71df50SFrank Blaschka 15494a71df50SFrank Blaschka int qeth_qdio_clear_card(struct qeth_card *card, int use_halt) 15504a71df50SFrank Blaschka { 15514a71df50SFrank Blaschka int rc = 0; 15524a71df50SFrank Blaschka 1553847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "qdioclr"); 15544a71df50SFrank Blaschka switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED, 15554a71df50SFrank Blaschka QETH_QDIO_CLEANING)) { 15564a71df50SFrank Blaschka case QETH_QDIO_ESTABLISHED: 15574a71df50SFrank Blaschka if (card->info.type == QETH_CARD_TYPE_IQD) 1558cc961d40SJan Glauber rc = qdio_shutdown(CARD_DDEV(card), 15594a71df50SFrank Blaschka QDIO_FLAG_CLEANUP_USING_HALT); 15604a71df50SFrank Blaschka else 1561cc961d40SJan Glauber rc = qdio_shutdown(CARD_DDEV(card), 15624a71df50SFrank Blaschka QDIO_FLAG_CLEANUP_USING_CLEAR); 15634a71df50SFrank Blaschka if (rc) 1564847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 3, "1err%d", rc); 15654a71df50SFrank Blaschka atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); 15664a71df50SFrank Blaschka break; 15674a71df50SFrank Blaschka case QETH_QDIO_CLEANING: 15684a71df50SFrank Blaschka return rc; 15694a71df50SFrank Blaschka default: 15704a71df50SFrank Blaschka break; 15714a71df50SFrank Blaschka } 15724a71df50SFrank Blaschka rc = qeth_clear_halt_card(card, use_halt); 15734a71df50SFrank Blaschka if (rc) 1574847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 3, "2err%d", rc); 15754a71df50SFrank Blaschka card->state = CARD_STATE_DOWN; 15764a71df50SFrank Blaschka return rc; 15774a71df50SFrank Blaschka } 15784a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_qdio_clear_card); 15794a71df50SFrank Blaschka 15804a71df50SFrank Blaschka static int qeth_read_conf_data(struct qeth_card *card, void **buffer, 15814a71df50SFrank Blaschka int *length) 15824a71df50SFrank Blaschka { 15834a71df50SFrank Blaschka struct ciw *ciw; 15844a71df50SFrank Blaschka char *rcd_buf; 15854a71df50SFrank Blaschka int ret; 15864a71df50SFrank Blaschka struct qeth_channel *channel = &card->data; 15874a71df50SFrank Blaschka 15884a71df50SFrank Blaschka /* 15894a71df50SFrank Blaschka * scan for RCD command in extended SenseID data 15904a71df50SFrank Blaschka */ 15914a71df50SFrank Blaschka ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD); 15924a71df50SFrank Blaschka if (!ciw || ciw->cmd == 0) 15934a71df50SFrank Blaschka return -EOPNOTSUPP; 15944a71df50SFrank Blaschka rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA); 15954a71df50SFrank Blaschka if (!rcd_buf) 15964a71df50SFrank Blaschka return -ENOMEM; 15974a71df50SFrank Blaschka 1598f15cdaf2SJulian Wiedmann qeth_setup_ccw(channel->ccw, ciw->cmd, ciw->count, rcd_buf); 15994a71df50SFrank Blaschka channel->state = CH_STATE_RCD; 1600ed47155bSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(channel->ccwdev)); 1601f15cdaf2SJulian Wiedmann ret = ccw_device_start_timeout(channel->ccwdev, channel->ccw, 16024a71df50SFrank Blaschka QETH_RCD_PARM, LPM_ANYPATH, 0, 16034a71df50SFrank Blaschka QETH_RCD_TIMEOUT); 1604ed47155bSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(channel->ccwdev)); 16054a71df50SFrank Blaschka if (!ret) 16064a71df50SFrank Blaschka wait_event(card->wait_q, 16074a71df50SFrank Blaschka (channel->state == CH_STATE_RCD_DONE || 16084a71df50SFrank Blaschka channel->state == CH_STATE_DOWN)); 16094a71df50SFrank Blaschka if (channel->state == CH_STATE_DOWN) 16104a71df50SFrank Blaschka ret = -EIO; 16114a71df50SFrank Blaschka else 16124a71df50SFrank Blaschka channel->state = CH_STATE_DOWN; 16134a71df50SFrank Blaschka if (ret) { 16144a71df50SFrank Blaschka kfree(rcd_buf); 16154a71df50SFrank Blaschka *buffer = NULL; 16164a71df50SFrank Blaschka *length = 0; 16174a71df50SFrank Blaschka } else { 16184a71df50SFrank Blaschka *length = ciw->count; 16194a71df50SFrank Blaschka *buffer = rcd_buf; 16204a71df50SFrank Blaschka } 16214a71df50SFrank Blaschka return ret; 16224a71df50SFrank Blaschka } 16234a71df50SFrank Blaschka 1624a60389abSEinar Lueck static void qeth_configure_unitaddr(struct qeth_card *card, char *prcd) 16254a71df50SFrank Blaschka { 1626a60389abSEinar Lueck QETH_DBF_TEXT(SETUP, 2, "cfgunit"); 16274a71df50SFrank Blaschka card->info.chpid = prcd[30]; 16284a71df50SFrank Blaschka card->info.unit_addr2 = prcd[31]; 16294a71df50SFrank Blaschka card->info.cula = prcd[63]; 16304a71df50SFrank Blaschka card->info.guestlan = ((prcd[0x10] == _ascebc['V']) && 16314a71df50SFrank Blaschka (prcd[0x11] == _ascebc['M'])); 1632a60389abSEinar Lueck } 1633a60389abSEinar Lueck 1634615dff22SJulian Wiedmann static enum qeth_discipline_id qeth_vm_detect_layer(struct qeth_card *card) 1635615dff22SJulian Wiedmann { 1636615dff22SJulian Wiedmann enum qeth_discipline_id disc = QETH_DISCIPLINE_UNDETERMINED; 1637615dff22SJulian Wiedmann struct diag26c_vnic_resp *response = NULL; 1638615dff22SJulian Wiedmann struct diag26c_vnic_req *request = NULL; 1639615dff22SJulian Wiedmann struct ccw_dev_id id; 1640615dff22SJulian Wiedmann char userid[80]; 1641615dff22SJulian Wiedmann int rc = 0; 1642615dff22SJulian Wiedmann 1643615dff22SJulian Wiedmann QETH_DBF_TEXT(SETUP, 2, "vmlayer"); 1644615dff22SJulian Wiedmann 1645615dff22SJulian Wiedmann cpcmd("QUERY USERID", userid, sizeof(userid), &rc); 1646615dff22SJulian Wiedmann if (rc) 1647615dff22SJulian Wiedmann goto out; 1648615dff22SJulian Wiedmann 1649615dff22SJulian Wiedmann request = kzalloc(sizeof(*request), GFP_KERNEL | GFP_DMA); 1650615dff22SJulian Wiedmann response = kzalloc(sizeof(*response), GFP_KERNEL | GFP_DMA); 1651615dff22SJulian Wiedmann if (!request || !response) { 1652615dff22SJulian Wiedmann rc = -ENOMEM; 1653615dff22SJulian Wiedmann goto out; 1654615dff22SJulian Wiedmann } 1655615dff22SJulian Wiedmann 1656615dff22SJulian Wiedmann ccw_device_get_id(CARD_RDEV(card), &id); 1657615dff22SJulian Wiedmann request->resp_buf_len = sizeof(*response); 1658615dff22SJulian Wiedmann request->resp_version = DIAG26C_VERSION6_VM65918; 1659615dff22SJulian Wiedmann request->req_format = DIAG26C_VNIC_INFO; 1660615dff22SJulian Wiedmann ASCEBC(userid, 8); 1661615dff22SJulian Wiedmann memcpy(&request->sys_name, userid, 8); 1662615dff22SJulian Wiedmann request->devno = id.devno; 1663615dff22SJulian Wiedmann 1664615dff22SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, request, sizeof(*request)); 1665615dff22SJulian Wiedmann rc = diag26c(request, response, DIAG26C_PORT_VNIC); 1666615dff22SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, request, sizeof(*request)); 1667615dff22SJulian Wiedmann if (rc) 1668615dff22SJulian Wiedmann goto out; 1669615dff22SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, response, sizeof(*response)); 1670615dff22SJulian Wiedmann 1671615dff22SJulian Wiedmann if (request->resp_buf_len < sizeof(*response) || 1672615dff22SJulian Wiedmann response->version != request->resp_version) { 1673615dff22SJulian Wiedmann rc = -EIO; 1674615dff22SJulian Wiedmann goto out; 1675615dff22SJulian Wiedmann } 1676615dff22SJulian Wiedmann 1677615dff22SJulian Wiedmann if (response->protocol == VNIC_INFO_PROT_L2) 1678615dff22SJulian Wiedmann disc = QETH_DISCIPLINE_LAYER2; 1679615dff22SJulian Wiedmann else if (response->protocol == VNIC_INFO_PROT_L3) 1680615dff22SJulian Wiedmann disc = QETH_DISCIPLINE_LAYER3; 1681615dff22SJulian Wiedmann 1682615dff22SJulian Wiedmann out: 1683615dff22SJulian Wiedmann kfree(response); 1684615dff22SJulian Wiedmann kfree(request); 1685615dff22SJulian Wiedmann if (rc) 1686615dff22SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "err%x", rc); 1687615dff22SJulian Wiedmann return disc; 1688615dff22SJulian Wiedmann } 1689615dff22SJulian Wiedmann 1690c70eb09dSJulian Wiedmann /* Determine whether the device requires a specific layer discipline */ 1691c70eb09dSJulian Wiedmann static enum qeth_discipline_id qeth_enforce_discipline(struct qeth_card *card) 1692c70eb09dSJulian Wiedmann { 1693615dff22SJulian Wiedmann enum qeth_discipline_id disc = QETH_DISCIPLINE_UNDETERMINED; 1694615dff22SJulian Wiedmann 1695c70eb09dSJulian Wiedmann if (card->info.type == QETH_CARD_TYPE_OSM || 1696615dff22SJulian Wiedmann card->info.type == QETH_CARD_TYPE_OSN) 1697615dff22SJulian Wiedmann disc = QETH_DISCIPLINE_LAYER2; 1698615dff22SJulian Wiedmann else if (card->info.guestlan) 1699615dff22SJulian Wiedmann disc = (card->info.type == QETH_CARD_TYPE_IQD) ? 1700615dff22SJulian Wiedmann QETH_DISCIPLINE_LAYER3 : 1701615dff22SJulian Wiedmann qeth_vm_detect_layer(card); 1702615dff22SJulian Wiedmann 1703615dff22SJulian Wiedmann switch (disc) { 1704615dff22SJulian Wiedmann case QETH_DISCIPLINE_LAYER2: 1705c70eb09dSJulian Wiedmann QETH_DBF_TEXT(SETUP, 3, "force l2"); 1706615dff22SJulian Wiedmann break; 1707615dff22SJulian Wiedmann case QETH_DISCIPLINE_LAYER3: 1708c70eb09dSJulian Wiedmann QETH_DBF_TEXT(SETUP, 3, "force l3"); 1709615dff22SJulian Wiedmann break; 1710615dff22SJulian Wiedmann default: 1711615dff22SJulian Wiedmann QETH_DBF_TEXT(SETUP, 3, "force no"); 1712c70eb09dSJulian Wiedmann } 1713c70eb09dSJulian Wiedmann 1714615dff22SJulian Wiedmann return disc; 1715c70eb09dSJulian Wiedmann } 1716c70eb09dSJulian Wiedmann 1717a60389abSEinar Lueck static void qeth_configure_blkt_default(struct qeth_card *card, char *prcd) 1718a60389abSEinar Lueck { 1719a60389abSEinar Lueck QETH_DBF_TEXT(SETUP, 2, "cfgblkt"); 1720a60389abSEinar Lueck 1721e6e056baSStefan Raspl if (prcd[74] == 0xF0 && prcd[75] == 0xF0 && 1722a0c98523SUrsula Braun prcd[76] >= 0xF1 && prcd[76] <= 0xF4) { 1723a60389abSEinar Lueck card->info.blkt.time_total = 0; 1724a60389abSEinar Lueck card->info.blkt.inter_packet = 0; 1725a60389abSEinar Lueck card->info.blkt.inter_packet_jumbo = 0; 1726a0c98523SUrsula Braun } else { 1727a0c98523SUrsula Braun card->info.blkt.time_total = 250; 1728a0c98523SUrsula Braun card->info.blkt.inter_packet = 5; 1729a0c98523SUrsula Braun card->info.blkt.inter_packet_jumbo = 15; 1730a60389abSEinar Lueck } 17314a71df50SFrank Blaschka } 17324a71df50SFrank Blaschka 17334a71df50SFrank Blaschka static void qeth_init_tokens(struct qeth_card *card) 17344a71df50SFrank Blaschka { 17354a71df50SFrank Blaschka card->token.issuer_rm_w = 0x00010103UL; 17364a71df50SFrank Blaschka card->token.cm_filter_w = 0x00010108UL; 17374a71df50SFrank Blaschka card->token.cm_connection_w = 0x0001010aUL; 17384a71df50SFrank Blaschka card->token.ulp_filter_w = 0x0001010bUL; 17394a71df50SFrank Blaschka card->token.ulp_connection_w = 0x0001010dUL; 17404a71df50SFrank Blaschka } 17414a71df50SFrank Blaschka 17424a71df50SFrank Blaschka static void qeth_init_func_level(struct qeth_card *card) 17434a71df50SFrank Blaschka { 17445113fec0SUrsula Braun switch (card->info.type) { 17455113fec0SUrsula Braun case QETH_CARD_TYPE_IQD: 17466298263aSKlaus-Dieter Wacker card->info.func_level = QETH_IDX_FUNC_LEVEL_IQD; 17475113fec0SUrsula Braun break; 17485113fec0SUrsula Braun case QETH_CARD_TYPE_OSD: 17490132951eSUrsula Braun case QETH_CARD_TYPE_OSN: 17505113fec0SUrsula Braun card->info.func_level = QETH_IDX_FUNC_LEVEL_OSD; 17515113fec0SUrsula Braun break; 17525113fec0SUrsula Braun default: 17535113fec0SUrsula Braun break; 17544a71df50SFrank Blaschka } 17554a71df50SFrank Blaschka } 17564a71df50SFrank Blaschka 175748ce6f89SJulian Wiedmann static void qeth_idx_finalize_cmd(struct qeth_card *card, 175848ce6f89SJulian Wiedmann struct qeth_cmd_buffer *iob, 175948ce6f89SJulian Wiedmann unsigned int length) 176048ce6f89SJulian Wiedmann { 176148ce6f89SJulian Wiedmann qeth_setup_ccw(iob->channel->ccw, CCW_CMD_WRITE, length, iob->data); 176248ce6f89SJulian Wiedmann 176348ce6f89SJulian Wiedmann memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), &card->seqno.trans_hdr, 176448ce6f89SJulian Wiedmann QETH_SEQ_NO_LENGTH); 176548ce6f89SJulian Wiedmann if (iob->channel == &card->write) 176648ce6f89SJulian Wiedmann card->seqno.trans_hdr++; 176748ce6f89SJulian Wiedmann } 176848ce6f89SJulian Wiedmann 17694a71df50SFrank Blaschka static int qeth_peer_func_level(int level) 17704a71df50SFrank Blaschka { 17714a71df50SFrank Blaschka if ((level & 0xff) == 8) 17724a71df50SFrank Blaschka return (level & 0xff) + 0x400; 17734a71df50SFrank Blaschka if (((level >> 8) & 3) == 1) 17744a71df50SFrank Blaschka return (level & 0xff) + 0x200; 17754a71df50SFrank Blaschka return level; 17764a71df50SFrank Blaschka } 17774a71df50SFrank Blaschka 177848ce6f89SJulian Wiedmann static void qeth_mpc_finalize_cmd(struct qeth_card *card, 177948ce6f89SJulian Wiedmann struct qeth_cmd_buffer *iob, 178048ce6f89SJulian Wiedmann unsigned int length) 17814a71df50SFrank Blaschka { 178248ce6f89SJulian Wiedmann qeth_idx_finalize_cmd(card, iob, length); 17834a71df50SFrank Blaschka 17844a71df50SFrank Blaschka memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data), 17854a71df50SFrank Blaschka &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH); 17864a71df50SFrank Blaschka card->seqno.pdu_hdr++; 17874a71df50SFrank Blaschka memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data), 17884a71df50SFrank Blaschka &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH); 178948ce6f89SJulian Wiedmann 179048ce6f89SJulian Wiedmann iob->reply->seqno = QETH_IDX_COMMAND_SEQNO; 179148ce6f89SJulian Wiedmann iob->callback = qeth_release_buffer_cb; 17924a71df50SFrank Blaschka } 17934a71df50SFrank Blaschka 1794efbbc1d5SEugene Crosser /** 1795efbbc1d5SEugene Crosser * qeth_send_control_data() - send control command to the card 1796efbbc1d5SEugene Crosser * @card: qeth_card structure pointer 1797efbbc1d5SEugene Crosser * @len: size of the command buffer 1798efbbc1d5SEugene Crosser * @iob: qeth_cmd_buffer pointer 1799efbbc1d5SEugene Crosser * @reply_cb: callback function pointer 1800efbbc1d5SEugene Crosser * @cb_card: pointer to the qeth_card structure 1801efbbc1d5SEugene Crosser * @cb_reply: pointer to the qeth_reply structure 1802efbbc1d5SEugene Crosser * @cb_cmd: pointer to the original iob for non-IPA 1803efbbc1d5SEugene Crosser * commands, or to the qeth_ipa_cmd structure 1804efbbc1d5SEugene Crosser * for the IPA commands. 1805efbbc1d5SEugene Crosser * @reply_param: private pointer passed to the callback 1806efbbc1d5SEugene Crosser * 1807efbbc1d5SEugene Crosser * Callback function gets called one or more times, with cb_cmd 1808efbbc1d5SEugene Crosser * pointing to the response returned by the hardware. Callback 1809742d4d40SJulian Wiedmann * function must return 1810742d4d40SJulian Wiedmann * > 0 if more reply blocks are expected, 1811742d4d40SJulian Wiedmann * 0 if the last or only reply block is received, and 1812742d4d40SJulian Wiedmann * < 0 on error. 1813742d4d40SJulian Wiedmann * Callback function can get the value of the reply_param pointer from the 1814efbbc1d5SEugene Crosser * field 'param' of the structure qeth_reply. 1815efbbc1d5SEugene Crosser */ 1816efbbc1d5SEugene Crosser 181784dbea46SJulian Wiedmann static int qeth_send_control_data(struct qeth_card *card, int len, 18184a71df50SFrank Blaschka struct qeth_cmd_buffer *iob, 1819efbbc1d5SEugene Crosser int (*reply_cb)(struct qeth_card *cb_card, 1820efbbc1d5SEugene Crosser struct qeth_reply *cb_reply, 1821efbbc1d5SEugene Crosser unsigned long cb_cmd), 18224a71df50SFrank Blaschka void *reply_param) 18234a71df50SFrank Blaschka { 1824750b1625SJulian Wiedmann struct qeth_channel *channel = iob->channel; 1825782e4a79SJulian Wiedmann long timeout = iob->timeout; 18264a71df50SFrank Blaschka int rc; 18274a71df50SFrank Blaschka struct qeth_reply *reply = NULL; 18284a71df50SFrank Blaschka 1829847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "sendctl"); 18304a71df50SFrank Blaschka 18314a71df50SFrank Blaschka reply = qeth_alloc_reply(card); 18324a71df50SFrank Blaschka if (!reply) { 18335065b2ddSJulian Wiedmann qeth_release_buffer(channel, iob); 18344a71df50SFrank Blaschka return -ENOMEM; 18354a71df50SFrank Blaschka } 18364a71df50SFrank Blaschka reply->callback = reply_cb; 18374a71df50SFrank Blaschka reply->param = reply_param; 1838d22ffb5aSJulian Wiedmann 183954daaca7SJulian Wiedmann /* pairs with qeth_release_buffer(): */ 184054daaca7SJulian Wiedmann qeth_get_reply(reply); 184154daaca7SJulian Wiedmann iob->reply = reply; 184254daaca7SJulian Wiedmann 1843782e4a79SJulian Wiedmann timeout = wait_event_interruptible_timeout(card->wait_q, 1844782e4a79SJulian Wiedmann qeth_trylock_channel(channel), 1845782e4a79SJulian Wiedmann timeout); 1846782e4a79SJulian Wiedmann if (timeout <= 0) { 1847782e4a79SJulian Wiedmann qeth_put_reply(reply); 1848782e4a79SJulian Wiedmann qeth_release_buffer(channel, iob); 1849782e4a79SJulian Wiedmann return (timeout == -ERESTARTSYS) ? -EINTR : -ETIME; 1850782e4a79SJulian Wiedmann } 18514a71df50SFrank Blaschka 185248ce6f89SJulian Wiedmann iob->finalize(card, iob, len); 185348ce6f89SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, iob->data, min(len, QETH_DBF_CTRL_LEN)); 1854d22ffb5aSJulian Wiedmann 18550951c6baSJulian Wiedmann qeth_enqueue_reply(card, reply); 18561c5b2216SJulian Wiedmann 1857847a50fdSCarsten Otte QETH_CARD_TEXT(card, 6, "noirqpnd"); 1858ed47155bSJulian Wiedmann spin_lock_irq(get_ccwdev_lock(channel->ccwdev)); 1859f15cdaf2SJulian Wiedmann rc = ccw_device_start_timeout(channel->ccwdev, channel->ccw, 1860782e4a79SJulian Wiedmann (addr_t) iob, 0, 0, timeout); 1861ed47155bSJulian Wiedmann spin_unlock_irq(get_ccwdev_lock(channel->ccwdev)); 18624a71df50SFrank Blaschka if (rc) { 1863e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "qeth_send_control_data on device %x: ccw_device_start rc = %i\n", 1864e19e5be8SJulian Wiedmann CARD_DEVID(card), rc); 1865847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 2, " err%d", rc); 18660951c6baSJulian Wiedmann qeth_dequeue_reply(card, reply); 18674a71df50SFrank Blaschka qeth_put_reply(reply); 1868750b1625SJulian Wiedmann qeth_release_buffer(channel, iob); 1869750b1625SJulian Wiedmann atomic_set(&channel->irq_pending, 0); 18704a71df50SFrank Blaschka wake_up(&card->wait_q); 18714a71df50SFrank Blaschka return rc; 18724a71df50SFrank Blaschka } 18735b54e16fSFrank Blaschka 1874782e4a79SJulian Wiedmann timeout = wait_for_completion_interruptible_timeout(&reply->received, 1875782e4a79SJulian Wiedmann timeout); 1876782e4a79SJulian Wiedmann if (timeout <= 0) 1877782e4a79SJulian Wiedmann rc = (timeout == -ERESTARTSYS) ? -EINTR : -ETIME; 18785b54e16fSFrank Blaschka 18790951c6baSJulian Wiedmann qeth_dequeue_reply(card, reply); 1880782e4a79SJulian Wiedmann if (!rc) 18815b54e16fSFrank Blaschka rc = reply->rc; 18825b54e16fSFrank Blaschka qeth_put_reply(reply); 18835b54e16fSFrank Blaschka return rc; 18844a71df50SFrank Blaschka } 18854a71df50SFrank Blaschka 18862e873d10SJulian Wiedmann static int qeth_idx_check_activate_response(struct qeth_card *card, 18872e873d10SJulian Wiedmann struct qeth_channel *channel, 18882e873d10SJulian Wiedmann struct qeth_cmd_buffer *iob) 18892e873d10SJulian Wiedmann { 18902e873d10SJulian Wiedmann int rc; 18912e873d10SJulian Wiedmann 18922e873d10SJulian Wiedmann rc = qeth_check_idx_response(card, iob->data); 18932e873d10SJulian Wiedmann if (rc) 18942e873d10SJulian Wiedmann return rc; 18952e873d10SJulian Wiedmann 18962e873d10SJulian Wiedmann if (QETH_IS_IDX_ACT_POS_REPLY(iob->data)) 18972e873d10SJulian Wiedmann return 0; 18982e873d10SJulian Wiedmann 18992e873d10SJulian Wiedmann /* negative reply: */ 19002e873d10SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "idxneg%c", 19012e873d10SJulian Wiedmann QETH_IDX_ACT_CAUSE_CODE(iob->data)); 19022e873d10SJulian Wiedmann 19032e873d10SJulian Wiedmann switch (QETH_IDX_ACT_CAUSE_CODE(iob->data)) { 19042e873d10SJulian Wiedmann case QETH_IDX_ACT_ERR_EXCL: 19052e873d10SJulian Wiedmann dev_err(&channel->ccwdev->dev, 19062e873d10SJulian Wiedmann "The adapter is used exclusively by another host\n"); 19072e873d10SJulian Wiedmann return -EBUSY; 19082e873d10SJulian Wiedmann case QETH_IDX_ACT_ERR_AUTH: 19092e873d10SJulian Wiedmann case QETH_IDX_ACT_ERR_AUTH_USER: 19102e873d10SJulian Wiedmann dev_err(&channel->ccwdev->dev, 19112e873d10SJulian Wiedmann "Setting the device online failed because of insufficient authorization\n"); 19122e873d10SJulian Wiedmann return -EPERM; 19132e873d10SJulian Wiedmann default: 19142e873d10SJulian Wiedmann QETH_DBF_MESSAGE(2, "IDX_ACTIVATE on channel %x: negative reply\n", 19152e873d10SJulian Wiedmann CCW_DEVID(channel->ccwdev)); 19162e873d10SJulian Wiedmann return -EIO; 19172e873d10SJulian Wiedmann } 19182e873d10SJulian Wiedmann } 19192e873d10SJulian Wiedmann 19202e873d10SJulian Wiedmann static void qeth_idx_query_read_cb(struct qeth_card *card, 19212e873d10SJulian Wiedmann struct qeth_channel *channel, 19222e873d10SJulian Wiedmann struct qeth_cmd_buffer *iob) 19232e873d10SJulian Wiedmann { 19242e873d10SJulian Wiedmann u16 peer_level; 19252e873d10SJulian Wiedmann int rc; 19262e873d10SJulian Wiedmann 19272e873d10SJulian Wiedmann QETH_DBF_TEXT(SETUP, 2, "idxrdcb"); 19282e873d10SJulian Wiedmann 19292e873d10SJulian Wiedmann rc = qeth_idx_check_activate_response(card, channel, iob); 19302e873d10SJulian Wiedmann if (rc) 19312e873d10SJulian Wiedmann goto out; 19322e873d10SJulian Wiedmann 19332e873d10SJulian Wiedmann memcpy(&peer_level, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); 19342e873d10SJulian Wiedmann if (peer_level != qeth_peer_func_level(card->info.func_level)) { 19352e873d10SJulian Wiedmann QETH_DBF_MESSAGE(2, "IDX_ACTIVATE on channel %x: function level mismatch (sent: %#x, received: %#x)\n", 19362e873d10SJulian Wiedmann CCW_DEVID(channel->ccwdev), 19372e873d10SJulian Wiedmann card->info.func_level, peer_level); 19382e873d10SJulian Wiedmann rc = -EINVAL; 19392e873d10SJulian Wiedmann goto out; 19402e873d10SJulian Wiedmann } 19412e873d10SJulian Wiedmann 19422e873d10SJulian Wiedmann memcpy(&card->token.issuer_rm_r, 19432e873d10SJulian Wiedmann QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data), 19442e873d10SJulian Wiedmann QETH_MPC_TOKEN_LENGTH); 19452e873d10SJulian Wiedmann memcpy(&card->info.mcl_level[0], 19462e873d10SJulian Wiedmann QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH); 19472e873d10SJulian Wiedmann 19482e873d10SJulian Wiedmann out: 19492e873d10SJulian Wiedmann qeth_notify_reply(iob->reply, rc); 19502e873d10SJulian Wiedmann qeth_release_buffer(channel, iob); 19512e873d10SJulian Wiedmann } 19522e873d10SJulian Wiedmann 19532e873d10SJulian Wiedmann static void qeth_idx_query_write_cb(struct qeth_card *card, 19542e873d10SJulian Wiedmann struct qeth_channel *channel, 19552e873d10SJulian Wiedmann struct qeth_cmd_buffer *iob) 19562e873d10SJulian Wiedmann { 19572e873d10SJulian Wiedmann u16 peer_level; 19582e873d10SJulian Wiedmann int rc; 19592e873d10SJulian Wiedmann 19602e873d10SJulian Wiedmann QETH_DBF_TEXT(SETUP, 2, "idxwrcb"); 19612e873d10SJulian Wiedmann 19622e873d10SJulian Wiedmann rc = qeth_idx_check_activate_response(card, channel, iob); 19632e873d10SJulian Wiedmann if (rc) 19642e873d10SJulian Wiedmann goto out; 19652e873d10SJulian Wiedmann 19662e873d10SJulian Wiedmann memcpy(&peer_level, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); 19672e873d10SJulian Wiedmann if ((peer_level & ~0x0100) != 19682e873d10SJulian Wiedmann qeth_peer_func_level(card->info.func_level)) { 19692e873d10SJulian Wiedmann QETH_DBF_MESSAGE(2, "IDX_ACTIVATE on channel %x: function level mismatch (sent: %#x, received: %#x)\n", 19702e873d10SJulian Wiedmann CCW_DEVID(channel->ccwdev), 19712e873d10SJulian Wiedmann card->info.func_level, peer_level); 19722e873d10SJulian Wiedmann rc = -EINVAL; 19732e873d10SJulian Wiedmann } 19742e873d10SJulian Wiedmann 19752e873d10SJulian Wiedmann out: 19762e873d10SJulian Wiedmann qeth_notify_reply(iob->reply, rc); 19772e873d10SJulian Wiedmann qeth_release_buffer(channel, iob); 19782e873d10SJulian Wiedmann } 19792e873d10SJulian Wiedmann 19802e873d10SJulian Wiedmann static void qeth_idx_finalize_query_cmd(struct qeth_card *card, 19812e873d10SJulian Wiedmann struct qeth_cmd_buffer *iob, 19822e873d10SJulian Wiedmann unsigned int length) 19832e873d10SJulian Wiedmann { 19842e873d10SJulian Wiedmann qeth_setup_ccw(iob->channel->ccw, CCW_CMD_READ, length, iob->data); 19852e873d10SJulian Wiedmann } 19862e873d10SJulian Wiedmann 19872e873d10SJulian Wiedmann static void qeth_idx_activate_cb(struct qeth_card *card, 19882e873d10SJulian Wiedmann struct qeth_channel *channel, 19892e873d10SJulian Wiedmann struct qeth_cmd_buffer *iob) 19902e873d10SJulian Wiedmann { 19912e873d10SJulian Wiedmann qeth_notify_reply(iob->reply, 0); 19922e873d10SJulian Wiedmann qeth_release_buffer(channel, iob); 19932e873d10SJulian Wiedmann } 19942e873d10SJulian Wiedmann 19952e873d10SJulian Wiedmann static void qeth_idx_setup_activate_cmd(struct qeth_card *card, 19962e873d10SJulian Wiedmann struct qeth_cmd_buffer *iob) 19972e873d10SJulian Wiedmann { 19982e873d10SJulian Wiedmann u16 addr = (card->info.cula << 8) + card->info.unit_addr2; 19992e873d10SJulian Wiedmann u8 port = ((u8)card->dev->dev_port) | 0x80; 20002e873d10SJulian Wiedmann struct ccw_dev_id dev_id; 20012e873d10SJulian Wiedmann 20022e873d10SJulian Wiedmann ccw_device_get_id(CARD_DDEV(card), &dev_id); 20032e873d10SJulian Wiedmann iob->finalize = qeth_idx_finalize_cmd; 20042e873d10SJulian Wiedmann iob->callback = qeth_idx_activate_cb; 20052e873d10SJulian Wiedmann 20062e873d10SJulian Wiedmann memcpy(QETH_IDX_ACT_PNO(iob->data), &port, 1); 20072e873d10SJulian Wiedmann memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data), 20082e873d10SJulian Wiedmann &card->token.issuer_rm_w, QETH_MPC_TOKEN_LENGTH); 20092e873d10SJulian Wiedmann memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data), 20102e873d10SJulian Wiedmann &card->info.func_level, 2); 20112e873d10SJulian Wiedmann memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &dev_id.devno, 2); 20122e873d10SJulian Wiedmann memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &addr, 2); 20132e873d10SJulian Wiedmann } 20142e873d10SJulian Wiedmann 20152e873d10SJulian Wiedmann static int qeth_idx_activate_read_channel(struct qeth_card *card) 20162e873d10SJulian Wiedmann { 20172e873d10SJulian Wiedmann struct qeth_channel *channel = &card->read; 20182e873d10SJulian Wiedmann struct qeth_cmd_buffer *iob; 20192e873d10SJulian Wiedmann int rc; 20202e873d10SJulian Wiedmann 20212e873d10SJulian Wiedmann QETH_DBF_TEXT(SETUP, 2, "idxread"); 20222e873d10SJulian Wiedmann 20232e873d10SJulian Wiedmann iob = qeth_get_buffer(channel); 20242e873d10SJulian Wiedmann if (!iob) 20252e873d10SJulian Wiedmann return -ENOMEM; 20262e873d10SJulian Wiedmann 20272e873d10SJulian Wiedmann memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE); 20282e873d10SJulian Wiedmann qeth_idx_setup_activate_cmd(card, iob); 20292e873d10SJulian Wiedmann 20302e873d10SJulian Wiedmann rc = qeth_send_control_data(card, IDX_ACTIVATE_SIZE, iob, NULL, NULL); 20312e873d10SJulian Wiedmann if (rc) 20322e873d10SJulian Wiedmann return rc; 20332e873d10SJulian Wiedmann 20342e873d10SJulian Wiedmann iob = qeth_get_buffer(channel); 20352e873d10SJulian Wiedmann if (!iob) 20362e873d10SJulian Wiedmann return -ENOMEM; 20372e873d10SJulian Wiedmann 20382e873d10SJulian Wiedmann iob->finalize = qeth_idx_finalize_query_cmd; 20392e873d10SJulian Wiedmann iob->callback = qeth_idx_query_read_cb; 20402e873d10SJulian Wiedmann rc = qeth_send_control_data(card, QETH_BUFSIZE, iob, NULL, NULL); 20412e873d10SJulian Wiedmann if (rc) 20422e873d10SJulian Wiedmann return rc; 20432e873d10SJulian Wiedmann 20442e873d10SJulian Wiedmann channel->state = CH_STATE_UP; 20452e873d10SJulian Wiedmann return 0; 20462e873d10SJulian Wiedmann } 20472e873d10SJulian Wiedmann 20482e873d10SJulian Wiedmann static int qeth_idx_activate_write_channel(struct qeth_card *card) 20492e873d10SJulian Wiedmann { 20502e873d10SJulian Wiedmann struct qeth_channel *channel = &card->write; 20512e873d10SJulian Wiedmann struct qeth_cmd_buffer *iob; 20522e873d10SJulian Wiedmann int rc; 20532e873d10SJulian Wiedmann 20542e873d10SJulian Wiedmann QETH_DBF_TEXT(SETUP, 2, "idxwrite"); 20552e873d10SJulian Wiedmann 20562e873d10SJulian Wiedmann iob = qeth_get_buffer(channel); 20572e873d10SJulian Wiedmann if (!iob) 20582e873d10SJulian Wiedmann return -ENOMEM; 20592e873d10SJulian Wiedmann 20602e873d10SJulian Wiedmann memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE); 20612e873d10SJulian Wiedmann qeth_idx_setup_activate_cmd(card, iob); 20622e873d10SJulian Wiedmann 20632e873d10SJulian Wiedmann rc = qeth_send_control_data(card, IDX_ACTIVATE_SIZE, iob, NULL, NULL); 20642e873d10SJulian Wiedmann if (rc) 20652e873d10SJulian Wiedmann return rc; 20662e873d10SJulian Wiedmann 20672e873d10SJulian Wiedmann iob = qeth_get_buffer(channel); 20682e873d10SJulian Wiedmann if (!iob) 20692e873d10SJulian Wiedmann return -ENOMEM; 20702e873d10SJulian Wiedmann 20712e873d10SJulian Wiedmann iob->finalize = qeth_idx_finalize_query_cmd; 20722e873d10SJulian Wiedmann iob->callback = qeth_idx_query_write_cb; 20732e873d10SJulian Wiedmann rc = qeth_send_control_data(card, QETH_BUFSIZE, iob, NULL, NULL); 20742e873d10SJulian Wiedmann if (rc) 20752e873d10SJulian Wiedmann return rc; 20762e873d10SJulian Wiedmann 20772e873d10SJulian Wiedmann channel->state = CH_STATE_UP; 20782e873d10SJulian Wiedmann return 0; 20792e873d10SJulian Wiedmann } 20802e873d10SJulian Wiedmann 20814a71df50SFrank Blaschka static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply, 20824a71df50SFrank Blaschka unsigned long data) 20834a71df50SFrank Blaschka { 20844a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 20854a71df50SFrank Blaschka 2086d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "cmenblcb"); 20874a71df50SFrank Blaschka 20884a71df50SFrank Blaschka iob = (struct qeth_cmd_buffer *) data; 20894a71df50SFrank Blaschka memcpy(&card->token.cm_filter_r, 20904a71df50SFrank Blaschka QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data), 20914a71df50SFrank Blaschka QETH_MPC_TOKEN_LENGTH); 20924a71df50SFrank Blaschka return 0; 20934a71df50SFrank Blaschka } 20944a71df50SFrank Blaschka 20954a71df50SFrank Blaschka static int qeth_cm_enable(struct qeth_card *card) 20964a71df50SFrank Blaschka { 20974a71df50SFrank Blaschka int rc; 20984a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 20994a71df50SFrank Blaschka 2100d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "cmenable"); 21014a71df50SFrank Blaschka 21024a71df50SFrank Blaschka iob = qeth_wait_for_buffer(&card->write); 210348ce6f89SJulian Wiedmann iob->finalize = qeth_mpc_finalize_cmd; 21044a71df50SFrank Blaschka memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE); 210548ce6f89SJulian Wiedmann 21064a71df50SFrank Blaschka memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data), 21074a71df50SFrank Blaschka &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH); 21084a71df50SFrank Blaschka memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data), 21094a71df50SFrank Blaschka &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH); 21104a71df50SFrank Blaschka 21114a71df50SFrank Blaschka rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob, 21124a71df50SFrank Blaschka qeth_cm_enable_cb, NULL); 21134a71df50SFrank Blaschka return rc; 21144a71df50SFrank Blaschka } 21154a71df50SFrank Blaschka 21164a71df50SFrank Blaschka static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply, 21174a71df50SFrank Blaschka unsigned long data) 21184a71df50SFrank Blaschka { 21194a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 21204a71df50SFrank Blaschka 2121d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "cmsetpcb"); 21224a71df50SFrank Blaschka 21234a71df50SFrank Blaschka iob = (struct qeth_cmd_buffer *) data; 21244a71df50SFrank Blaschka memcpy(&card->token.cm_connection_r, 21254a71df50SFrank Blaschka QETH_CM_SETUP_RESP_DEST_ADDR(iob->data), 21264a71df50SFrank Blaschka QETH_MPC_TOKEN_LENGTH); 21274a71df50SFrank Blaschka return 0; 21284a71df50SFrank Blaschka } 21294a71df50SFrank Blaschka 21304a71df50SFrank Blaschka static int qeth_cm_setup(struct qeth_card *card) 21314a71df50SFrank Blaschka { 21324a71df50SFrank Blaschka int rc; 21334a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 21344a71df50SFrank Blaschka 2135d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "cmsetup"); 21364a71df50SFrank Blaschka 21374a71df50SFrank Blaschka iob = qeth_wait_for_buffer(&card->write); 213848ce6f89SJulian Wiedmann iob->finalize = qeth_mpc_finalize_cmd; 21394a71df50SFrank Blaschka memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE); 214048ce6f89SJulian Wiedmann 21414a71df50SFrank Blaschka memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data), 21424a71df50SFrank Blaschka &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH); 21434a71df50SFrank Blaschka memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data), 21444a71df50SFrank Blaschka &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH); 21454a71df50SFrank Blaschka memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data), 21464a71df50SFrank Blaschka &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH); 21474a71df50SFrank Blaschka rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob, 21484a71df50SFrank Blaschka qeth_cm_setup_cb, NULL); 21494a71df50SFrank Blaschka return rc; 21504a71df50SFrank Blaschka } 21514a71df50SFrank Blaschka 21528ce7a9e0SJulian Wiedmann static int qeth_update_max_mtu(struct qeth_card *card, unsigned int max_mtu) 21534a71df50SFrank Blaschka { 21548ce7a9e0SJulian Wiedmann struct net_device *dev = card->dev; 21558ce7a9e0SJulian Wiedmann unsigned int new_mtu; 21568ce7a9e0SJulian Wiedmann 21578ce7a9e0SJulian Wiedmann if (!max_mtu) { 21588ce7a9e0SJulian Wiedmann /* IQD needs accurate max MTU to set up its RX buffers: */ 21598ce7a9e0SJulian Wiedmann if (IS_IQD(card)) 21608ce7a9e0SJulian Wiedmann return -EINVAL; 21618ce7a9e0SJulian Wiedmann /* tolerate quirky HW: */ 21628ce7a9e0SJulian Wiedmann max_mtu = ETH_MAX_MTU; 21634a71df50SFrank Blaschka } 21648ce7a9e0SJulian Wiedmann 21658ce7a9e0SJulian Wiedmann rtnl_lock(); 21668ce7a9e0SJulian Wiedmann if (IS_IQD(card)) { 21678ce7a9e0SJulian Wiedmann /* move any device with default MTU to new max MTU: */ 21688ce7a9e0SJulian Wiedmann new_mtu = (dev->mtu == dev->max_mtu) ? max_mtu : dev->mtu; 21698ce7a9e0SJulian Wiedmann 21708ce7a9e0SJulian Wiedmann /* adjust RX buffer size to new max MTU: */ 21718ce7a9e0SJulian Wiedmann card->qdio.in_buf_size = max_mtu + 2 * PAGE_SIZE; 21728ce7a9e0SJulian Wiedmann if (dev->max_mtu && dev->max_mtu != max_mtu) 217341c47da3SJulian Wiedmann qeth_free_qdio_queues(card); 21748ce7a9e0SJulian Wiedmann } else { 21758ce7a9e0SJulian Wiedmann if (dev->mtu) 21768ce7a9e0SJulian Wiedmann new_mtu = dev->mtu; 21778ce7a9e0SJulian Wiedmann /* default MTUs for first setup: */ 21784fda3354SJulian Wiedmann else if (IS_LAYER2(card)) 21798ce7a9e0SJulian Wiedmann new_mtu = ETH_DATA_LEN; 21808ce7a9e0SJulian Wiedmann else 21818ce7a9e0SJulian Wiedmann new_mtu = ETH_DATA_LEN - 8; /* allow for LLC + SNAP */ 21828ce7a9e0SJulian Wiedmann } 21838ce7a9e0SJulian Wiedmann 21848ce7a9e0SJulian Wiedmann dev->max_mtu = max_mtu; 21858ce7a9e0SJulian Wiedmann dev->mtu = min(new_mtu, max_mtu); 21868ce7a9e0SJulian Wiedmann rtnl_unlock(); 21878ce7a9e0SJulian Wiedmann return 0; 21884a71df50SFrank Blaschka } 21894a71df50SFrank Blaschka 2190cef6ff22SJulian Wiedmann static int qeth_get_mtu_outof_framesize(int framesize) 21914a71df50SFrank Blaschka { 21924a71df50SFrank Blaschka switch (framesize) { 21934a71df50SFrank Blaschka case 0x4000: 21944a71df50SFrank Blaschka return 8192; 21954a71df50SFrank Blaschka case 0x6000: 21964a71df50SFrank Blaschka return 16384; 21974a71df50SFrank Blaschka case 0xa000: 21984a71df50SFrank Blaschka return 32768; 21994a71df50SFrank Blaschka case 0xffff: 22004a71df50SFrank Blaschka return 57344; 22014a71df50SFrank Blaschka default: 22024a71df50SFrank Blaschka return 0; 22034a71df50SFrank Blaschka } 22044a71df50SFrank Blaschka } 22054a71df50SFrank Blaschka 22064a71df50SFrank Blaschka static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply, 22074a71df50SFrank Blaschka unsigned long data) 22084a71df50SFrank Blaschka { 22094a71df50SFrank Blaschka __u16 mtu, framesize; 22104a71df50SFrank Blaschka __u16 len; 22114a71df50SFrank Blaschka __u8 link_type; 22124a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 22134a71df50SFrank Blaschka 2214d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "ulpenacb"); 22154a71df50SFrank Blaschka 22164a71df50SFrank Blaschka iob = (struct qeth_cmd_buffer *) data; 22174a71df50SFrank Blaschka memcpy(&card->token.ulp_filter_r, 22184a71df50SFrank Blaschka QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data), 22194a71df50SFrank Blaschka QETH_MPC_TOKEN_LENGTH); 22209853b97bSFrank Blaschka if (card->info.type == QETH_CARD_TYPE_IQD) { 22214a71df50SFrank Blaschka memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2); 22224a71df50SFrank Blaschka mtu = qeth_get_mtu_outof_framesize(framesize); 22234a71df50SFrank Blaschka } else { 22248ce7a9e0SJulian Wiedmann mtu = *(__u16 *)QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data); 22254a71df50SFrank Blaschka } 22268ce7a9e0SJulian Wiedmann *(u16 *)reply->param = mtu; 22274a71df50SFrank Blaschka 22284a71df50SFrank Blaschka memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2); 22294a71df50SFrank Blaschka if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) { 22304a71df50SFrank Blaschka memcpy(&link_type, 22314a71df50SFrank Blaschka QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1); 22324a71df50SFrank Blaschka card->info.link_type = link_type; 22334a71df50SFrank Blaschka } else 22344a71df50SFrank Blaschka card->info.link_type = 0; 223501fc3e86SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "link%d", card->info.link_type); 22364a71df50SFrank Blaschka return 0; 22374a71df50SFrank Blaschka } 22384a71df50SFrank Blaschka 223973657a3eSJulian Wiedmann static u8 qeth_mpc_select_prot_type(struct qeth_card *card) 224073657a3eSJulian Wiedmann { 224173657a3eSJulian Wiedmann if (IS_OSN(card)) 224273657a3eSJulian Wiedmann return QETH_PROT_OSN2; 22434fda3354SJulian Wiedmann return IS_LAYER2(card) ? QETH_PROT_LAYER2 : QETH_PROT_TCPIP; 224473657a3eSJulian Wiedmann } 224573657a3eSJulian Wiedmann 22464a71df50SFrank Blaschka static int qeth_ulp_enable(struct qeth_card *card) 22474a71df50SFrank Blaschka { 224873657a3eSJulian Wiedmann u8 prot_type = qeth_mpc_select_prot_type(card); 22494a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 22508ce7a9e0SJulian Wiedmann u16 max_mtu; 225173657a3eSJulian Wiedmann int rc; 22524a71df50SFrank Blaschka 22534a71df50SFrank Blaschka /*FIXME: trace view callbacks*/ 2254d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "ulpenabl"); 22554a71df50SFrank Blaschka 22564a71df50SFrank Blaschka iob = qeth_wait_for_buffer(&card->write); 225748ce6f89SJulian Wiedmann iob->finalize = qeth_mpc_finalize_cmd; 22584a71df50SFrank Blaschka memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE); 22594a71df50SFrank Blaschka 226092d27209SJulian Wiedmann *(QETH_ULP_ENABLE_LINKNUM(iob->data)) = (u8) card->dev->dev_port; 22614a71df50SFrank Blaschka memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1); 22624a71df50SFrank Blaschka memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data), 22634a71df50SFrank Blaschka &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); 22644a71df50SFrank Blaschka memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data), 22654a71df50SFrank Blaschka &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH); 22664a71df50SFrank Blaschka rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob, 22678ce7a9e0SJulian Wiedmann qeth_ulp_enable_cb, &max_mtu); 22688ce7a9e0SJulian Wiedmann if (rc) 22694a71df50SFrank Blaschka return rc; 22708ce7a9e0SJulian Wiedmann return qeth_update_max_mtu(card, max_mtu); 22714a71df50SFrank Blaschka } 22724a71df50SFrank Blaschka 22734a71df50SFrank Blaschka static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply, 22744a71df50SFrank Blaschka unsigned long data) 22754a71df50SFrank Blaschka { 22764a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 22774a71df50SFrank Blaschka 2278d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "ulpstpcb"); 22794a71df50SFrank Blaschka 22804a71df50SFrank Blaschka iob = (struct qeth_cmd_buffer *) data; 22814a71df50SFrank Blaschka memcpy(&card->token.ulp_connection_r, 22824a71df50SFrank Blaschka QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), 22834a71df50SFrank Blaschka QETH_MPC_TOKEN_LENGTH); 228465a1f898SUrsula Braun if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), 228565a1f898SUrsula Braun 3)) { 228665a1f898SUrsula Braun QETH_DBF_TEXT(SETUP, 2, "olmlimit"); 228765a1f898SUrsula Braun dev_err(&card->gdev->dev, "A connection could not be " 228865a1f898SUrsula Braun "established because of an OLM limit\n"); 22894b7ae122SJulian Wiedmann return -EMLINK; 229065a1f898SUrsula Braun } 22917bf9bcffSStefan Raspl return 0; 22924a71df50SFrank Blaschka } 22934a71df50SFrank Blaschka 22944a71df50SFrank Blaschka static int qeth_ulp_setup(struct qeth_card *card) 22954a71df50SFrank Blaschka { 22964a71df50SFrank Blaschka int rc; 22974a71df50SFrank Blaschka __u16 temp; 22984a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 22994a71df50SFrank Blaschka struct ccw_dev_id dev_id; 23004a71df50SFrank Blaschka 2301d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "ulpsetup"); 23024a71df50SFrank Blaschka 23034a71df50SFrank Blaschka iob = qeth_wait_for_buffer(&card->write); 230448ce6f89SJulian Wiedmann iob->finalize = qeth_mpc_finalize_cmd; 23054a71df50SFrank Blaschka memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE); 23064a71df50SFrank Blaschka 23074a71df50SFrank Blaschka memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data), 23084a71df50SFrank Blaschka &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); 23094a71df50SFrank Blaschka memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data), 23104a71df50SFrank Blaschka &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH); 23114a71df50SFrank Blaschka memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data), 23124a71df50SFrank Blaschka &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH); 23134a71df50SFrank Blaschka 23144a71df50SFrank Blaschka ccw_device_get_id(CARD_DDEV(card), &dev_id); 23154a71df50SFrank Blaschka memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2); 23164a71df50SFrank Blaschka temp = (card->info.cula << 8) + card->info.unit_addr2; 23174a71df50SFrank Blaschka memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2); 23184a71df50SFrank Blaschka rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob, 23194a71df50SFrank Blaschka qeth_ulp_setup_cb, NULL); 23204a71df50SFrank Blaschka return rc; 23214a71df50SFrank Blaschka } 23224a71df50SFrank Blaschka 23230da9581dSEinar Lueck static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *q, int bidx) 23240da9581dSEinar Lueck { 23250da9581dSEinar Lueck struct qeth_qdio_out_buffer *newbuf; 23260da9581dSEinar Lueck 23270da9581dSEinar Lueck newbuf = kmem_cache_zalloc(qeth_qdio_outbuf_cache, GFP_ATOMIC); 23283b346c18SJulian Wiedmann if (!newbuf) 23293b346c18SJulian Wiedmann return -ENOMEM; 23303b346c18SJulian Wiedmann 2331d445a4e2SSebastian Ott newbuf->buffer = q->qdio_bufs[bidx]; 23320da9581dSEinar Lueck skb_queue_head_init(&newbuf->skb_list); 23330da9581dSEinar Lueck lockdep_set_class(&newbuf->skb_list.lock, &qdio_out_skb_queue_key); 23340da9581dSEinar Lueck newbuf->q = q; 23350da9581dSEinar Lueck newbuf->next_pending = q->bufs[bidx]; 23360da9581dSEinar Lueck atomic_set(&newbuf->state, QETH_QDIO_BUF_EMPTY); 23370da9581dSEinar Lueck q->bufs[bidx] = newbuf; 23383b346c18SJulian Wiedmann return 0; 23390da9581dSEinar Lueck } 23400da9581dSEinar Lueck 2341afa0c590SJulian Wiedmann static void qeth_free_output_queue(struct qeth_qdio_out_q *q) 2342d445a4e2SSebastian Ott { 2343d445a4e2SSebastian Ott if (!q) 2344d445a4e2SSebastian Ott return; 2345d445a4e2SSebastian Ott 234641c47da3SJulian Wiedmann qeth_drain_output_queue(q, true); 2347d445a4e2SSebastian Ott qdio_free_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q); 2348d445a4e2SSebastian Ott kfree(q); 2349d445a4e2SSebastian Ott } 2350d445a4e2SSebastian Ott 235141c47da3SJulian Wiedmann static struct qeth_qdio_out_q *qeth_alloc_output_queue(void) 2352d445a4e2SSebastian Ott { 2353d445a4e2SSebastian Ott struct qeth_qdio_out_q *q = kzalloc(sizeof(*q), GFP_KERNEL); 2354d445a4e2SSebastian Ott 2355d445a4e2SSebastian Ott if (!q) 2356d445a4e2SSebastian Ott return NULL; 2357d445a4e2SSebastian Ott 2358d445a4e2SSebastian Ott if (qdio_alloc_buffers(q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q)) { 2359d445a4e2SSebastian Ott kfree(q); 2360d445a4e2SSebastian Ott return NULL; 2361d445a4e2SSebastian Ott } 2362d445a4e2SSebastian Ott return q; 2363d445a4e2SSebastian Ott } 23640da9581dSEinar Lueck 236541c47da3SJulian Wiedmann static int qeth_alloc_qdio_queues(struct qeth_card *card) 23664a71df50SFrank Blaschka { 23674a71df50SFrank Blaschka int i, j; 23684a71df50SFrank Blaschka 2369d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "allcqdbf"); 23704a71df50SFrank Blaschka 23714a71df50SFrank Blaschka if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED, 23724a71df50SFrank Blaschka QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED) 23734a71df50SFrank Blaschka return 0; 23744a71df50SFrank Blaschka 23754601ba6cSSebastian Ott QETH_DBF_TEXT(SETUP, 2, "inq"); 23764601ba6cSSebastian Ott card->qdio.in_q = qeth_alloc_qdio_queue(); 23774a71df50SFrank Blaschka if (!card->qdio.in_q) 23784a71df50SFrank Blaschka goto out_nomem; 23794601ba6cSSebastian Ott 23804a71df50SFrank Blaschka /* inbound buffer pool */ 23814a71df50SFrank Blaschka if (qeth_alloc_buffer_pool(card)) 23824a71df50SFrank Blaschka goto out_freeinq; 23830da9581dSEinar Lueck 23844a71df50SFrank Blaschka /* outbound */ 23854a71df50SFrank Blaschka for (i = 0; i < card->qdio.no_out_queues; ++i) { 238641c47da3SJulian Wiedmann card->qdio.out_qs[i] = qeth_alloc_output_queue(); 23874a71df50SFrank Blaschka if (!card->qdio.out_qs[i]) 23884a71df50SFrank Blaschka goto out_freeoutq; 2389d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "outq %i", i); 2390d11ba0c4SPeter Tiedemann QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *)); 23914a71df50SFrank Blaschka card->qdio.out_qs[i]->queue_no = i; 23924a71df50SFrank Blaschka /* give outbound qeth_qdio_buffers their qdio_buffers */ 23934a71df50SFrank Blaschka for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { 239418af5c17SStefan Raspl WARN_ON(card->qdio.out_qs[i]->bufs[j] != NULL); 23950da9581dSEinar Lueck if (qeth_init_qdio_out_buf(card->qdio.out_qs[i], j)) 23960da9581dSEinar Lueck goto out_freeoutqbufs; 23974a71df50SFrank Blaschka } 23984a71df50SFrank Blaschka } 23990da9581dSEinar Lueck 24000da9581dSEinar Lueck /* completion */ 24010da9581dSEinar Lueck if (qeth_alloc_cq(card)) 24020da9581dSEinar Lueck goto out_freeoutq; 24030da9581dSEinar Lueck 24044a71df50SFrank Blaschka return 0; 24054a71df50SFrank Blaschka 24060da9581dSEinar Lueck out_freeoutqbufs: 24070da9581dSEinar Lueck while (j > 0) { 24080da9581dSEinar Lueck --j; 24090da9581dSEinar Lueck kmem_cache_free(qeth_qdio_outbuf_cache, 24100da9581dSEinar Lueck card->qdio.out_qs[i]->bufs[j]); 24110da9581dSEinar Lueck card->qdio.out_qs[i]->bufs[j] = NULL; 24120da9581dSEinar Lueck } 24134a71df50SFrank Blaschka out_freeoutq: 2414bb92d3f8SJulian Wiedmann while (i > 0) { 2415afa0c590SJulian Wiedmann qeth_free_output_queue(card->qdio.out_qs[--i]); 2416bb92d3f8SJulian Wiedmann card->qdio.out_qs[i] = NULL; 2417bb92d3f8SJulian Wiedmann } 24184a71df50SFrank Blaschka qeth_free_buffer_pool(card); 24194a71df50SFrank Blaschka out_freeinq: 24204601ba6cSSebastian Ott qeth_free_qdio_queue(card->qdio.in_q); 24214a71df50SFrank Blaschka card->qdio.in_q = NULL; 24224a71df50SFrank Blaschka out_nomem: 24234a71df50SFrank Blaschka atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); 24244a71df50SFrank Blaschka return -ENOMEM; 24254a71df50SFrank Blaschka } 24264a71df50SFrank Blaschka 242741c47da3SJulian Wiedmann static void qeth_free_qdio_queues(struct qeth_card *card) 2428d445a4e2SSebastian Ott { 2429d445a4e2SSebastian Ott int i, j; 2430d445a4e2SSebastian Ott 2431d445a4e2SSebastian Ott if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) == 2432d445a4e2SSebastian Ott QETH_QDIO_UNINITIALIZED) 2433d445a4e2SSebastian Ott return; 2434d445a4e2SSebastian Ott 2435d445a4e2SSebastian Ott qeth_free_cq(card); 2436d445a4e2SSebastian Ott cancel_delayed_work_sync(&card->buffer_reclaim_work); 2437d445a4e2SSebastian Ott for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { 2438d445a4e2SSebastian Ott if (card->qdio.in_q->bufs[j].rx_skb) 2439d445a4e2SSebastian Ott dev_kfree_skb_any(card->qdio.in_q->bufs[j].rx_skb); 2440d445a4e2SSebastian Ott } 2441d445a4e2SSebastian Ott qeth_free_qdio_queue(card->qdio.in_q); 2442d445a4e2SSebastian Ott card->qdio.in_q = NULL; 2443d445a4e2SSebastian Ott /* inbound buffer pool */ 2444d445a4e2SSebastian Ott qeth_free_buffer_pool(card); 2445d445a4e2SSebastian Ott /* free outbound qdio_qs */ 2446bb92d3f8SJulian Wiedmann for (i = 0; i < card->qdio.no_out_queues; i++) { 2447afa0c590SJulian Wiedmann qeth_free_output_queue(card->qdio.out_qs[i]); 2448bb92d3f8SJulian Wiedmann card->qdio.out_qs[i] = NULL; 2449d445a4e2SSebastian Ott } 2450d445a4e2SSebastian Ott } 2451d445a4e2SSebastian Ott 24524a71df50SFrank Blaschka static void qeth_create_qib_param_field(struct qeth_card *card, 24534a71df50SFrank Blaschka char *param_field) 24544a71df50SFrank Blaschka { 24554a71df50SFrank Blaschka 24564a71df50SFrank Blaschka param_field[0] = _ascebc['P']; 24574a71df50SFrank Blaschka param_field[1] = _ascebc['C']; 24584a71df50SFrank Blaschka param_field[2] = _ascebc['I']; 24594a71df50SFrank Blaschka param_field[3] = _ascebc['T']; 24604a71df50SFrank Blaschka *((unsigned int *) (¶m_field[4])) = QETH_PCI_THRESHOLD_A(card); 24614a71df50SFrank Blaschka *((unsigned int *) (¶m_field[8])) = QETH_PCI_THRESHOLD_B(card); 24624a71df50SFrank Blaschka *((unsigned int *) (¶m_field[12])) = QETH_PCI_TIMER_VALUE(card); 24634a71df50SFrank Blaschka } 24644a71df50SFrank Blaschka 24654a71df50SFrank Blaschka static void qeth_create_qib_param_field_blkt(struct qeth_card *card, 24664a71df50SFrank Blaschka char *param_field) 24674a71df50SFrank Blaschka { 24684a71df50SFrank Blaschka param_field[16] = _ascebc['B']; 24694a71df50SFrank Blaschka param_field[17] = _ascebc['L']; 24704a71df50SFrank Blaschka param_field[18] = _ascebc['K']; 24714a71df50SFrank Blaschka param_field[19] = _ascebc['T']; 24724a71df50SFrank Blaschka *((unsigned int *) (¶m_field[20])) = card->info.blkt.time_total; 24734a71df50SFrank Blaschka *((unsigned int *) (¶m_field[24])) = card->info.blkt.inter_packet; 24744a71df50SFrank Blaschka *((unsigned int *) (¶m_field[28])) = 24754a71df50SFrank Blaschka card->info.blkt.inter_packet_jumbo; 24764a71df50SFrank Blaschka } 24774a71df50SFrank Blaschka 24784a71df50SFrank Blaschka static int qeth_qdio_activate(struct qeth_card *card) 24794a71df50SFrank Blaschka { 2480d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 3, "qdioact"); 2481779e6e1cSJan Glauber return qdio_activate(CARD_DDEV(card)); 24824a71df50SFrank Blaschka } 24834a71df50SFrank Blaschka 24844a71df50SFrank Blaschka static int qeth_dm_act(struct qeth_card *card) 24854a71df50SFrank Blaschka { 24864a71df50SFrank Blaschka int rc; 24874a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 24884a71df50SFrank Blaschka 2489d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "dmact"); 24904a71df50SFrank Blaschka 24914a71df50SFrank Blaschka iob = qeth_wait_for_buffer(&card->write); 249248ce6f89SJulian Wiedmann iob->finalize = qeth_mpc_finalize_cmd; 24934a71df50SFrank Blaschka memcpy(iob->data, DM_ACT, DM_ACT_SIZE); 24944a71df50SFrank Blaschka 24954a71df50SFrank Blaschka memcpy(QETH_DM_ACT_DEST_ADDR(iob->data), 24964a71df50SFrank Blaschka &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); 24974a71df50SFrank Blaschka memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data), 24984a71df50SFrank Blaschka &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); 24994a71df50SFrank Blaschka rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL); 25004a71df50SFrank Blaschka return rc; 25014a71df50SFrank Blaschka } 25024a71df50SFrank Blaschka 25034a71df50SFrank Blaschka static int qeth_mpc_initialize(struct qeth_card *card) 25044a71df50SFrank Blaschka { 25054a71df50SFrank Blaschka int rc; 25064a71df50SFrank Blaschka 2507d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "mpcinit"); 25084a71df50SFrank Blaschka 25094a71df50SFrank Blaschka rc = qeth_issue_next_read(card); 25104a71df50SFrank Blaschka if (rc) { 2511d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 25124a71df50SFrank Blaschka return rc; 25134a71df50SFrank Blaschka } 25144a71df50SFrank Blaschka rc = qeth_cm_enable(card); 25154a71df50SFrank Blaschka if (rc) { 2516d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); 25174a71df50SFrank Blaschka goto out_qdio; 25184a71df50SFrank Blaschka } 25194a71df50SFrank Blaschka rc = qeth_cm_setup(card); 25204a71df50SFrank Blaschka if (rc) { 2521d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); 25224a71df50SFrank Blaschka goto out_qdio; 25234a71df50SFrank Blaschka } 25244a71df50SFrank Blaschka rc = qeth_ulp_enable(card); 25254a71df50SFrank Blaschka if (rc) { 2526d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); 25274a71df50SFrank Blaschka goto out_qdio; 25284a71df50SFrank Blaschka } 25294a71df50SFrank Blaschka rc = qeth_ulp_setup(card); 25304a71df50SFrank Blaschka if (rc) { 2531d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); 25324a71df50SFrank Blaschka goto out_qdio; 25334a71df50SFrank Blaschka } 253441c47da3SJulian Wiedmann rc = qeth_alloc_qdio_queues(card); 25354a71df50SFrank Blaschka if (rc) { 2536d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); 25374a71df50SFrank Blaschka goto out_qdio; 25384a71df50SFrank Blaschka } 25394a71df50SFrank Blaschka rc = qeth_qdio_establish(card); 25404a71df50SFrank Blaschka if (rc) { 2541d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); 254241c47da3SJulian Wiedmann qeth_free_qdio_queues(card); 25434a71df50SFrank Blaschka goto out_qdio; 25444a71df50SFrank Blaschka } 25454a71df50SFrank Blaschka rc = qeth_qdio_activate(card); 25464a71df50SFrank Blaschka if (rc) { 2547d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc); 25484a71df50SFrank Blaschka goto out_qdio; 25494a71df50SFrank Blaschka } 25504a71df50SFrank Blaschka rc = qeth_dm_act(card); 25514a71df50SFrank Blaschka if (rc) { 2552d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc); 25534a71df50SFrank Blaschka goto out_qdio; 25544a71df50SFrank Blaschka } 25554a71df50SFrank Blaschka 25564a71df50SFrank Blaschka return 0; 25574a71df50SFrank Blaschka out_qdio: 25584a71df50SFrank Blaschka qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD); 255922ae2790SUrsula Braun qdio_free(CARD_DDEV(card)); 25604a71df50SFrank Blaschka return rc; 25614a71df50SFrank Blaschka } 25624a71df50SFrank Blaschka 25634a71df50SFrank Blaschka void qeth_print_status_message(struct qeth_card *card) 25644a71df50SFrank Blaschka { 25654a71df50SFrank Blaschka switch (card->info.type) { 25665113fec0SUrsula Braun case QETH_CARD_TYPE_OSD: 25675113fec0SUrsula Braun case QETH_CARD_TYPE_OSM: 25685113fec0SUrsula Braun case QETH_CARD_TYPE_OSX: 25694a71df50SFrank Blaschka /* VM will use a non-zero first character 25704a71df50SFrank Blaschka * to indicate a HiperSockets like reporting 25714a71df50SFrank Blaschka * of the level OSA sets the first character to zero 25724a71df50SFrank Blaschka * */ 25734a71df50SFrank Blaschka if (!card->info.mcl_level[0]) { 25744a71df50SFrank Blaschka sprintf(card->info.mcl_level, "%02x%02x", 25754a71df50SFrank Blaschka card->info.mcl_level[2], 25764a71df50SFrank Blaschka card->info.mcl_level[3]); 25774a71df50SFrank Blaschka break; 25784a71df50SFrank Blaschka } 25794a71df50SFrank Blaschka /* fallthrough */ 25804a71df50SFrank Blaschka case QETH_CARD_TYPE_IQD: 2581906f1f07SKlaus-Dieter Wacker if ((card->info.guestlan) || 2582906f1f07SKlaus-Dieter Wacker (card->info.mcl_level[0] & 0x80)) { 25834a71df50SFrank Blaschka card->info.mcl_level[0] = (char) _ebcasc[(__u8) 25844a71df50SFrank Blaschka card->info.mcl_level[0]]; 25854a71df50SFrank Blaschka card->info.mcl_level[1] = (char) _ebcasc[(__u8) 25864a71df50SFrank Blaschka card->info.mcl_level[1]]; 25874a71df50SFrank Blaschka card->info.mcl_level[2] = (char) _ebcasc[(__u8) 25884a71df50SFrank Blaschka card->info.mcl_level[2]]; 25894a71df50SFrank Blaschka card->info.mcl_level[3] = (char) _ebcasc[(__u8) 25904a71df50SFrank Blaschka card->info.mcl_level[3]]; 25914a71df50SFrank Blaschka card->info.mcl_level[QETH_MCL_LENGTH] = 0; 25924a71df50SFrank Blaschka } 25934a71df50SFrank Blaschka break; 25944a71df50SFrank Blaschka default: 25954a71df50SFrank Blaschka memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1); 25964a71df50SFrank Blaschka } 2597239ff408SUrsula Braun dev_info(&card->gdev->dev, 2598239ff408SUrsula Braun "Device is a%s card%s%s%s\nwith link type %s.\n", 2599239ff408SUrsula Braun qeth_get_cardname(card), 2600239ff408SUrsula Braun (card->info.mcl_level[0]) ? " (level: " : "", 2601239ff408SUrsula Braun (card->info.mcl_level[0]) ? card->info.mcl_level : "", 2602239ff408SUrsula Braun (card->info.mcl_level[0]) ? ")" : "", 2603239ff408SUrsula Braun qeth_get_cardname_short(card)); 26044a71df50SFrank Blaschka } 26054a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_print_status_message); 26064a71df50SFrank Blaschka 26074a71df50SFrank Blaschka static void qeth_initialize_working_pool_list(struct qeth_card *card) 26084a71df50SFrank Blaschka { 26094a71df50SFrank Blaschka struct qeth_buffer_pool_entry *entry; 26104a71df50SFrank Blaschka 2611847a50fdSCarsten Otte QETH_CARD_TEXT(card, 5, "inwrklst"); 26124a71df50SFrank Blaschka 26134a71df50SFrank Blaschka list_for_each_entry(entry, 26144a71df50SFrank Blaschka &card->qdio.init_pool.entry_list, init_list) { 26154a71df50SFrank Blaschka qeth_put_buffer_pool_entry(card, entry); 26164a71df50SFrank Blaschka } 26174a71df50SFrank Blaschka } 26184a71df50SFrank Blaschka 2619cef6ff22SJulian Wiedmann static struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry( 26204a71df50SFrank Blaschka struct qeth_card *card) 26214a71df50SFrank Blaschka { 26224a71df50SFrank Blaschka struct list_head *plh; 26234a71df50SFrank Blaschka struct qeth_buffer_pool_entry *entry; 26244a71df50SFrank Blaschka int i, free; 26254a71df50SFrank Blaschka struct page *page; 26264a71df50SFrank Blaschka 26274a71df50SFrank Blaschka if (list_empty(&card->qdio.in_buf_pool.entry_list)) 26284a71df50SFrank Blaschka return NULL; 26294a71df50SFrank Blaschka 26304a71df50SFrank Blaschka list_for_each(plh, &card->qdio.in_buf_pool.entry_list) { 26314a71df50SFrank Blaschka entry = list_entry(plh, struct qeth_buffer_pool_entry, list); 26324a71df50SFrank Blaschka free = 1; 26334a71df50SFrank Blaschka for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { 26344a71df50SFrank Blaschka if (page_count(virt_to_page(entry->elements[i])) > 1) { 26354a71df50SFrank Blaschka free = 0; 26364a71df50SFrank Blaschka break; 26374a71df50SFrank Blaschka } 26384a71df50SFrank Blaschka } 26394a71df50SFrank Blaschka if (free) { 26404a71df50SFrank Blaschka list_del_init(&entry->list); 26414a71df50SFrank Blaschka return entry; 26424a71df50SFrank Blaschka } 26434a71df50SFrank Blaschka } 26444a71df50SFrank Blaschka 26454a71df50SFrank Blaschka /* no free buffer in pool so take first one and swap pages */ 26464a71df50SFrank Blaschka entry = list_entry(card->qdio.in_buf_pool.entry_list.next, 26474a71df50SFrank Blaschka struct qeth_buffer_pool_entry, list); 26484a71df50SFrank Blaschka for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { 26494a71df50SFrank Blaschka if (page_count(virt_to_page(entry->elements[i])) > 1) { 2650508b3c4fSUrsula Braun page = alloc_page(GFP_ATOMIC); 26514a71df50SFrank Blaschka if (!page) { 26524a71df50SFrank Blaschka return NULL; 26534a71df50SFrank Blaschka } else { 26544a71df50SFrank Blaschka free_page((unsigned long)entry->elements[i]); 26554a71df50SFrank Blaschka entry->elements[i] = page_address(page); 2656b0abc4f5SJulian Wiedmann QETH_CARD_STAT_INC(card, rx_sg_alloc_page); 26574a71df50SFrank Blaschka } 26584a71df50SFrank Blaschka } 26594a71df50SFrank Blaschka } 26604a71df50SFrank Blaschka list_del_init(&entry->list); 26614a71df50SFrank Blaschka return entry; 26624a71df50SFrank Blaschka } 26634a71df50SFrank Blaschka 26644a71df50SFrank Blaschka static int qeth_init_input_buffer(struct qeth_card *card, 26654a71df50SFrank Blaschka struct qeth_qdio_buffer *buf) 26664a71df50SFrank Blaschka { 26674a71df50SFrank Blaschka struct qeth_buffer_pool_entry *pool_entry; 26684a71df50SFrank Blaschka int i; 26694a71df50SFrank Blaschka 2670b3332930SFrank Blaschka if ((card->options.cq == QETH_CQ_ENABLED) && (!buf->rx_skb)) { 267137cf05d2SJulian Wiedmann buf->rx_skb = netdev_alloc_skb(card->dev, 267237cf05d2SJulian Wiedmann QETH_RX_PULL_LEN + ETH_HLEN); 2673b3332930SFrank Blaschka if (!buf->rx_skb) 2674b3332930SFrank Blaschka return 1; 2675b3332930SFrank Blaschka } 2676b3332930SFrank Blaschka 26774a71df50SFrank Blaschka pool_entry = qeth_find_free_buffer_pool_entry(card); 26784a71df50SFrank Blaschka if (!pool_entry) 26794a71df50SFrank Blaschka return 1; 26804a71df50SFrank Blaschka 26814a71df50SFrank Blaschka /* 26824a71df50SFrank Blaschka * since the buffer is accessed only from the input_tasklet 26834a71df50SFrank Blaschka * there shouldn't be a need to synchronize; also, since we use 26844a71df50SFrank Blaschka * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off 26854a71df50SFrank Blaschka * buffers 26864a71df50SFrank Blaschka */ 26874a71df50SFrank Blaschka 26884a71df50SFrank Blaschka buf->pool_entry = pool_entry; 26894a71df50SFrank Blaschka for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { 26904a71df50SFrank Blaschka buf->buffer->element[i].length = PAGE_SIZE; 26914a71df50SFrank Blaschka buf->buffer->element[i].addr = pool_entry->elements[i]; 26924a71df50SFrank Blaschka if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1) 26933ec90878SJan Glauber buf->buffer->element[i].eflags = SBAL_EFLAGS_LAST_ENTRY; 26944a71df50SFrank Blaschka else 26953ec90878SJan Glauber buf->buffer->element[i].eflags = 0; 26963ec90878SJan Glauber buf->buffer->element[i].sflags = 0; 26974a71df50SFrank Blaschka } 26984a71df50SFrank Blaschka return 0; 26994a71df50SFrank Blaschka } 27004a71df50SFrank Blaschka 27014a71df50SFrank Blaschka int qeth_init_qdio_queues(struct qeth_card *card) 27024a71df50SFrank Blaschka { 27034a71df50SFrank Blaschka int i, j; 27044a71df50SFrank Blaschka int rc; 27054a71df50SFrank Blaschka 2706d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "initqdqs"); 27074a71df50SFrank Blaschka 27084a71df50SFrank Blaschka /* inbound queue */ 27091b45c80bSJulian Wiedmann qdio_reset_buffers(card->qdio.in_q->qdio_bufs, QDIO_MAX_BUFFERS_PER_Q); 27101b45c80bSJulian Wiedmann memset(&card->rx, 0, sizeof(struct qeth_rx)); 27114a71df50SFrank Blaschka qeth_initialize_working_pool_list(card); 27124a71df50SFrank Blaschka /*give only as many buffers to hardware as we have buffer pool entries*/ 27134a71df50SFrank Blaschka for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i) 27144a71df50SFrank Blaschka qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]); 27154a71df50SFrank Blaschka card->qdio.in_q->next_buf_to_init = 27164a71df50SFrank Blaschka card->qdio.in_buf_pool.buf_count - 1; 27174a71df50SFrank Blaschka rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0, 2718779e6e1cSJan Glauber card->qdio.in_buf_pool.buf_count - 1); 27194a71df50SFrank Blaschka if (rc) { 2720d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 27214a71df50SFrank Blaschka return rc; 27224a71df50SFrank Blaschka } 27230da9581dSEinar Lueck 27240da9581dSEinar Lueck /* completion */ 27250da9581dSEinar Lueck rc = qeth_cq_init(card); 27260da9581dSEinar Lueck if (rc) { 27270da9581dSEinar Lueck return rc; 27280da9581dSEinar Lueck } 27290da9581dSEinar Lueck 27304a71df50SFrank Blaschka /* outbound queue */ 27314a71df50SFrank Blaschka for (i = 0; i < card->qdio.no_out_queues; ++i) { 2732d445a4e2SSebastian Ott qdio_reset_buffers(card->qdio.out_qs[i]->qdio_bufs, 2733d445a4e2SSebastian Ott QDIO_MAX_BUFFERS_PER_Q); 27344a71df50SFrank Blaschka for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { 27354a71df50SFrank Blaschka qeth_clear_output_buffer(card->qdio.out_qs[i], 27363b346c18SJulian Wiedmann card->qdio.out_qs[i]->bufs[j]); 27374a71df50SFrank Blaschka } 27384a71df50SFrank Blaschka card->qdio.out_qs[i]->card = card; 27394a71df50SFrank Blaschka card->qdio.out_qs[i]->next_buf_to_fill = 0; 27404a71df50SFrank Blaschka card->qdio.out_qs[i]->do_pack = 0; 27414a71df50SFrank Blaschka atomic_set(&card->qdio.out_qs[i]->used_buffers, 0); 27424a71df50SFrank Blaschka atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0); 27434a71df50SFrank Blaschka atomic_set(&card->qdio.out_qs[i]->state, 27444a71df50SFrank Blaschka QETH_OUT_Q_UNLOCKED); 27454a71df50SFrank Blaschka } 27464a71df50SFrank Blaschka return 0; 27474a71df50SFrank Blaschka } 27484a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_init_qdio_queues); 27494a71df50SFrank Blaschka 2750cef6ff22SJulian Wiedmann static __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type) 27514a71df50SFrank Blaschka { 27524a71df50SFrank Blaschka switch (link_type) { 27534a71df50SFrank Blaschka case QETH_LINK_TYPE_HSTR: 27544a71df50SFrank Blaschka return 2; 27554a71df50SFrank Blaschka default: 27564a71df50SFrank Blaschka return 1; 27574a71df50SFrank Blaschka } 27584a71df50SFrank Blaschka } 27594a71df50SFrank Blaschka 27604a71df50SFrank Blaschka static void qeth_fill_ipacmd_header(struct qeth_card *card, 2761500abbf0SJulian Wiedmann struct qeth_ipa_cmd *cmd, 2762500abbf0SJulian Wiedmann enum qeth_ipa_cmds command, 27634a71df50SFrank Blaschka enum qeth_prot_versions prot) 27644a71df50SFrank Blaschka { 27654a71df50SFrank Blaschka cmd->hdr.command = command; 27664a71df50SFrank Blaschka cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST; 2767d22ffb5aSJulian Wiedmann /* cmd->hdr.seqno is set by qeth_send_control_data() */ 27684a71df50SFrank Blaschka cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type); 276992d27209SJulian Wiedmann cmd->hdr.rel_adapter_no = (u8) card->dev->dev_port; 27704fda3354SJulian Wiedmann cmd->hdr.prim_version_no = IS_LAYER2(card) ? 2 : 1; 27714a71df50SFrank Blaschka cmd->hdr.param_count = 1; 27724a71df50SFrank Blaschka cmd->hdr.prot_version = prot; 27734a71df50SFrank Blaschka } 27744a71df50SFrank Blaschka 277548ce6f89SJulian Wiedmann static void qeth_ipa_finalize_cmd(struct qeth_card *card, 277648ce6f89SJulian Wiedmann struct qeth_cmd_buffer *iob, 277748ce6f89SJulian Wiedmann unsigned int length) 277848ce6f89SJulian Wiedmann { 277948ce6f89SJulian Wiedmann qeth_mpc_finalize_cmd(card, iob, length); 278048ce6f89SJulian Wiedmann 278148ce6f89SJulian Wiedmann /* override with IPA-specific values: */ 278248ce6f89SJulian Wiedmann __ipa_cmd(iob)->hdr.seqno = card->seqno.ipa; 278348ce6f89SJulian Wiedmann iob->reply->seqno = card->seqno.ipa++; 278448ce6f89SJulian Wiedmann } 278548ce6f89SJulian Wiedmann 2786c2153277SJulian Wiedmann void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, 2787c2153277SJulian Wiedmann u16 cmd_length) 2788605c9d5fSJulian Wiedmann { 2789c2153277SJulian Wiedmann u16 total_length = IPA_PDU_HEADER_SIZE + cmd_length; 2790605c9d5fSJulian Wiedmann u8 prot_type = qeth_mpc_select_prot_type(card); 2791605c9d5fSJulian Wiedmann 279248ce6f89SJulian Wiedmann iob->finalize = qeth_ipa_finalize_cmd; 2793782e4a79SJulian Wiedmann iob->timeout = QETH_IPA_TIMEOUT; 2794782e4a79SJulian Wiedmann 2795605c9d5fSJulian Wiedmann memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); 2796c2153277SJulian Wiedmann memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &total_length, 2); 2797605c9d5fSJulian Wiedmann memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1); 2798c2153277SJulian Wiedmann memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &cmd_length, 2); 2799c2153277SJulian Wiedmann memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &cmd_length, 2); 2800605c9d5fSJulian Wiedmann memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), 2801605c9d5fSJulian Wiedmann &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); 2802c2153277SJulian Wiedmann memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &cmd_length, 2); 2803605c9d5fSJulian Wiedmann } 2804605c9d5fSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd); 2805605c9d5fSJulian Wiedmann 28064a71df50SFrank Blaschka struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card, 28074a71df50SFrank Blaschka enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot) 28084a71df50SFrank Blaschka { 28094a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 28104a71df50SFrank Blaschka 28111aec42bcSThomas Richter iob = qeth_get_buffer(&card->write); 28121aec42bcSThomas Richter if (iob) { 2813c2153277SJulian Wiedmann qeth_prepare_ipa_cmd(card, iob, sizeof(struct qeth_ipa_cmd)); 2814ff5caa7aSJulian Wiedmann qeth_fill_ipacmd_header(card, __ipa_cmd(iob), ipacmd, prot); 28151aec42bcSThomas Richter } else { 28161aec42bcSThomas Richter dev_warn(&card->gdev->dev, 28171aec42bcSThomas Richter "The qeth driver ran out of channel command buffers\n"); 2818e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(1, "device %x ran out of channel command buffers", 2819e19e5be8SJulian Wiedmann CARD_DEVID(card)); 28201aec42bcSThomas Richter } 28214a71df50SFrank Blaschka 28224a71df50SFrank Blaschka return iob; 28234a71df50SFrank Blaschka } 28244a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer); 28254a71df50SFrank Blaschka 2826742d4d40SJulian Wiedmann static int qeth_send_ipa_cmd_cb(struct qeth_card *card, 2827742d4d40SJulian Wiedmann struct qeth_reply *reply, unsigned long data) 2828742d4d40SJulian Wiedmann { 2829742d4d40SJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 2830742d4d40SJulian Wiedmann 2831742d4d40SJulian Wiedmann return (cmd->hdr.return_code) ? -EIO : 0; 2832742d4d40SJulian Wiedmann } 2833742d4d40SJulian Wiedmann 2834efbbc1d5SEugene Crosser /** 2835efbbc1d5SEugene Crosser * qeth_send_ipa_cmd() - send an IPA command 2836efbbc1d5SEugene Crosser * 2837efbbc1d5SEugene Crosser * See qeth_send_control_data() for explanation of the arguments. 2838efbbc1d5SEugene Crosser */ 2839efbbc1d5SEugene Crosser 28404a71df50SFrank Blaschka int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, 28414a71df50SFrank Blaschka int (*reply_cb)(struct qeth_card *, struct qeth_reply*, 28424a71df50SFrank Blaschka unsigned long), 28434a71df50SFrank Blaschka void *reply_param) 28444a71df50SFrank Blaschka { 2845c2153277SJulian Wiedmann u16 length; 28464a71df50SFrank Blaschka int rc; 28474a71df50SFrank Blaschka 2848847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "sendipa"); 2849742d4d40SJulian Wiedmann 28502e873d10SJulian Wiedmann if (card->read_or_write_problem) { 28512e873d10SJulian Wiedmann qeth_release_buffer(iob->channel, iob); 28522e873d10SJulian Wiedmann return -EIO; 28532e873d10SJulian Wiedmann } 28542e873d10SJulian Wiedmann 2855742d4d40SJulian Wiedmann if (reply_cb == NULL) 2856742d4d40SJulian Wiedmann reply_cb = qeth_send_ipa_cmd_cb; 2857c2153277SJulian Wiedmann memcpy(&length, QETH_IPA_PDU_LEN_TOTAL(iob->data), 2); 2858c2153277SJulian Wiedmann rc = qeth_send_control_data(card, length, iob, reply_cb, reply_param); 2859908abbb5SUrsula Braun if (rc == -ETIME) { 2860908abbb5SUrsula Braun qeth_clear_ipacmd_list(card); 2861908abbb5SUrsula Braun qeth_schedule_recovery(card); 2862908abbb5SUrsula Braun } 28634a71df50SFrank Blaschka return rc; 28644a71df50SFrank Blaschka } 28654a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd); 28664a71df50SFrank Blaschka 28674b7ae122SJulian Wiedmann static int qeth_send_startlan_cb(struct qeth_card *card, 28684b7ae122SJulian Wiedmann struct qeth_reply *reply, unsigned long data) 28694b7ae122SJulian Wiedmann { 28704b7ae122SJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 28714b7ae122SJulian Wiedmann 28724b7ae122SJulian Wiedmann if (cmd->hdr.return_code == IPA_RC_LAN_OFFLINE) 28734b7ae122SJulian Wiedmann return -ENETDOWN; 28744b7ae122SJulian Wiedmann 28754b7ae122SJulian Wiedmann return (cmd->hdr.return_code) ? -EIO : 0; 28764b7ae122SJulian Wiedmann } 28774b7ae122SJulian Wiedmann 287810340510SJulian Wiedmann static int qeth_send_startlan(struct qeth_card *card) 28794a71df50SFrank Blaschka { 28804a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 28814a71df50SFrank Blaschka 2882d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "strtlan"); 28834a71df50SFrank Blaschka 288470919e23SUrsula Braun iob = qeth_get_ipacmd_buffer(card, IPA_CMD_STARTLAN, 0); 28851aec42bcSThomas Richter if (!iob) 28861aec42bcSThomas Richter return -ENOMEM; 28874b7ae122SJulian Wiedmann return qeth_send_ipa_cmd(card, iob, qeth_send_startlan_cb, NULL); 28884a71df50SFrank Blaschka } 28894a71df50SFrank Blaschka 2890686c97eeSJulian Wiedmann static int qeth_setadpparms_inspect_rc(struct qeth_ipa_cmd *cmd) 28914a71df50SFrank Blaschka { 2892686c97eeSJulian Wiedmann if (!cmd->hdr.return_code) 28934a71df50SFrank Blaschka cmd->hdr.return_code = 28944a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.return_code; 2895686c97eeSJulian Wiedmann return cmd->hdr.return_code; 28964a71df50SFrank Blaschka } 28974a71df50SFrank Blaschka 28984a71df50SFrank Blaschka static int qeth_query_setadapterparms_cb(struct qeth_card *card, 28994a71df50SFrank Blaschka struct qeth_reply *reply, unsigned long data) 29004a71df50SFrank Blaschka { 2901686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 29024a71df50SFrank Blaschka 2903847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "quyadpcb"); 2904686c97eeSJulian Wiedmann if (qeth_setadpparms_inspect_rc(cmd)) 2905742d4d40SJulian Wiedmann return -EIO; 29064a71df50SFrank Blaschka 29075113fec0SUrsula Braun if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) { 29084a71df50SFrank Blaschka card->info.link_type = 29094a71df50SFrank Blaschka cmd->data.setadapterparms.data.query_cmds_supp.lan_type; 29105113fec0SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "lnk %d", card->info.link_type); 29115113fec0SUrsula Braun } 29124a71df50SFrank Blaschka card->options.adp.supported_funcs = 29134a71df50SFrank Blaschka cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds; 2914686c97eeSJulian Wiedmann return 0; 29154a71df50SFrank Blaschka } 29164a71df50SFrank Blaschka 2917eb3fb0baSStefan Raspl static struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card, 29184a71df50SFrank Blaschka __u32 command, __u32 cmdlen) 29194a71df50SFrank Blaschka { 29204a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 29214a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 29224a71df50SFrank Blaschka 29234a71df50SFrank Blaschka iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS, 29244a71df50SFrank Blaschka QETH_PROT_IPV4); 29251aec42bcSThomas Richter if (iob) { 2926ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 29274a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.cmdlength = cmdlen; 29284a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.command_code = command; 29294a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.used_total = 1; 29304a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.seq_no = 1; 29311aec42bcSThomas Richter } 29324a71df50SFrank Blaschka 29334a71df50SFrank Blaschka return iob; 29344a71df50SFrank Blaschka } 29354a71df50SFrank Blaschka 293609960b3aSJulian Wiedmann static int qeth_query_setadapterparms(struct qeth_card *card) 29374a71df50SFrank Blaschka { 29384a71df50SFrank Blaschka int rc; 29394a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 29404a71df50SFrank Blaschka 2941847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "queryadp"); 29424a71df50SFrank Blaschka iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED, 29434a71df50SFrank Blaschka sizeof(struct qeth_ipacmd_setadpparms)); 29441aec42bcSThomas Richter if (!iob) 29451aec42bcSThomas Richter return -ENOMEM; 29464a71df50SFrank Blaschka rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL); 29474a71df50SFrank Blaschka return rc; 29484a71df50SFrank Blaschka } 29494a71df50SFrank Blaschka 29501da74b1cSFrank Blaschka static int qeth_query_ipassists_cb(struct qeth_card *card, 29511da74b1cSFrank Blaschka struct qeth_reply *reply, unsigned long data) 29521da74b1cSFrank Blaschka { 29531da74b1cSFrank Blaschka struct qeth_ipa_cmd *cmd; 29541da74b1cSFrank Blaschka 29551da74b1cSFrank Blaschka QETH_DBF_TEXT(SETUP, 2, "qipasscb"); 29561da74b1cSFrank Blaschka 29571da74b1cSFrank Blaschka cmd = (struct qeth_ipa_cmd *) data; 2958a134884aSStefan Raspl 2959a134884aSStefan Raspl switch (cmd->hdr.return_code) { 2960742d4d40SJulian Wiedmann case IPA_RC_SUCCESS: 2961742d4d40SJulian Wiedmann break; 2962a134884aSStefan Raspl case IPA_RC_NOTSUPP: 2963a134884aSStefan Raspl case IPA_RC_L2_UNSUPPORTED_CMD: 2964a134884aSStefan Raspl QETH_DBF_TEXT(SETUP, 2, "ipaunsup"); 2965a134884aSStefan Raspl card->options.ipa4.supported_funcs |= IPA_SETADAPTERPARMS; 2966a134884aSStefan Raspl card->options.ipa6.supported_funcs |= IPA_SETADAPTERPARMS; 2967742d4d40SJulian Wiedmann return -EOPNOTSUPP; 2968a134884aSStefan Raspl default: 2969e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(1, "IPA_CMD_QIPASSIST on device %x: Unhandled rc=%#x\n", 2970742d4d40SJulian Wiedmann CARD_DEVID(card), cmd->hdr.return_code); 2971742d4d40SJulian Wiedmann return -EIO; 2972a134884aSStefan Raspl } 2973a134884aSStefan Raspl 29741da74b1cSFrank Blaschka if (cmd->hdr.prot_version == QETH_PROT_IPV4) { 29751da74b1cSFrank Blaschka card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported; 29761da74b1cSFrank Blaschka card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled; 2977a134884aSStefan Raspl } else if (cmd->hdr.prot_version == QETH_PROT_IPV6) { 29781da74b1cSFrank Blaschka card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported; 29791da74b1cSFrank Blaschka card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled; 2980a134884aSStefan Raspl } else 2981e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(1, "IPA_CMD_QIPASSIST on device %x: Flawed LIC detected\n", 2982e19e5be8SJulian Wiedmann CARD_DEVID(card)); 29831da74b1cSFrank Blaschka return 0; 29841da74b1cSFrank Blaschka } 29851da74b1cSFrank Blaschka 298609960b3aSJulian Wiedmann static int qeth_query_ipassists(struct qeth_card *card, 298709960b3aSJulian Wiedmann enum qeth_prot_versions prot) 29881da74b1cSFrank Blaschka { 29891da74b1cSFrank Blaschka int rc; 29901da74b1cSFrank Blaschka struct qeth_cmd_buffer *iob; 29911da74b1cSFrank Blaschka 29921da74b1cSFrank Blaschka QETH_DBF_TEXT_(SETUP, 2, "qipassi%i", prot); 29931da74b1cSFrank Blaschka iob = qeth_get_ipacmd_buffer(card, IPA_CMD_QIPASSIST, prot); 29941aec42bcSThomas Richter if (!iob) 29951aec42bcSThomas Richter return -ENOMEM; 29961da74b1cSFrank Blaschka rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL); 29971da74b1cSFrank Blaschka return rc; 29981da74b1cSFrank Blaschka } 29991da74b1cSFrank Blaschka 300045cbb2e4SStefan Raspl static int qeth_query_switch_attributes_cb(struct qeth_card *card, 300145cbb2e4SStefan Raspl struct qeth_reply *reply, unsigned long data) 300245cbb2e4SStefan Raspl { 3003686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 300445cbb2e4SStefan Raspl struct qeth_query_switch_attributes *attrs; 3005686c97eeSJulian Wiedmann struct qeth_switch_info *sw_info; 300645cbb2e4SStefan Raspl 300745cbb2e4SStefan Raspl QETH_CARD_TEXT(card, 2, "qswiatcb"); 3008686c97eeSJulian Wiedmann if (qeth_setadpparms_inspect_rc(cmd)) 3009742d4d40SJulian Wiedmann return -EIO; 3010686c97eeSJulian Wiedmann 301145cbb2e4SStefan Raspl sw_info = (struct qeth_switch_info *)reply->param; 301245cbb2e4SStefan Raspl attrs = &cmd->data.setadapterparms.data.query_switch_attributes; 301345cbb2e4SStefan Raspl sw_info->capabilities = attrs->capabilities; 301445cbb2e4SStefan Raspl sw_info->settings = attrs->settings; 301545cbb2e4SStefan Raspl QETH_CARD_TEXT_(card, 2, "%04x%04x", sw_info->capabilities, 301645cbb2e4SStefan Raspl sw_info->settings); 301745cbb2e4SStefan Raspl return 0; 301845cbb2e4SStefan Raspl } 301945cbb2e4SStefan Raspl 302045cbb2e4SStefan Raspl int qeth_query_switch_attributes(struct qeth_card *card, 302145cbb2e4SStefan Raspl struct qeth_switch_info *sw_info) 302245cbb2e4SStefan Raspl { 302345cbb2e4SStefan Raspl struct qeth_cmd_buffer *iob; 302445cbb2e4SStefan Raspl 302545cbb2e4SStefan Raspl QETH_CARD_TEXT(card, 2, "qswiattr"); 302645cbb2e4SStefan Raspl if (!qeth_adp_supported(card, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES)) 302745cbb2e4SStefan Raspl return -EOPNOTSUPP; 302845cbb2e4SStefan Raspl if (!netif_carrier_ok(card->dev)) 302945cbb2e4SStefan Raspl return -ENOMEDIUM; 303045cbb2e4SStefan Raspl iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_SWITCH_ATTRIBUTES, 303145cbb2e4SStefan Raspl sizeof(struct qeth_ipacmd_setadpparms_hdr)); 30321aec42bcSThomas Richter if (!iob) 30331aec42bcSThomas Richter return -ENOMEM; 303445cbb2e4SStefan Raspl return qeth_send_ipa_cmd(card, iob, 303545cbb2e4SStefan Raspl qeth_query_switch_attributes_cb, sw_info); 303645cbb2e4SStefan Raspl } 303745cbb2e4SStefan Raspl 30381da74b1cSFrank Blaschka static int qeth_query_setdiagass_cb(struct qeth_card *card, 30391da74b1cSFrank Blaschka struct qeth_reply *reply, unsigned long data) 30401da74b1cSFrank Blaschka { 3041742d4d40SJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 3042742d4d40SJulian Wiedmann u16 rc = cmd->hdr.return_code; 30431da74b1cSFrank Blaschka 3044742d4d40SJulian Wiedmann if (rc) { 30451da74b1cSFrank Blaschka QETH_CARD_TEXT_(card, 2, "diagq:%x", rc); 3046742d4d40SJulian Wiedmann return -EIO; 3047742d4d40SJulian Wiedmann } 3048742d4d40SJulian Wiedmann 30491da74b1cSFrank Blaschka card->info.diagass_support = cmd->data.diagass.ext; 30501da74b1cSFrank Blaschka return 0; 30511da74b1cSFrank Blaschka } 30521da74b1cSFrank Blaschka 30531da74b1cSFrank Blaschka static int qeth_query_setdiagass(struct qeth_card *card) 30541da74b1cSFrank Blaschka { 30551da74b1cSFrank Blaschka struct qeth_cmd_buffer *iob; 30561da74b1cSFrank Blaschka struct qeth_ipa_cmd *cmd; 30571da74b1cSFrank Blaschka 30581da74b1cSFrank Blaschka QETH_DBF_TEXT(SETUP, 2, "qdiagass"); 30591da74b1cSFrank Blaschka iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0); 30601aec42bcSThomas Richter if (!iob) 30611aec42bcSThomas Richter return -ENOMEM; 3062ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 30631da74b1cSFrank Blaschka cmd->data.diagass.subcmd_len = 16; 30641da74b1cSFrank Blaschka cmd->data.diagass.subcmd = QETH_DIAGS_CMD_QUERY; 30651da74b1cSFrank Blaschka return qeth_send_ipa_cmd(card, iob, qeth_query_setdiagass_cb, NULL); 30661da74b1cSFrank Blaschka } 30671da74b1cSFrank Blaschka 30681da74b1cSFrank Blaschka static void qeth_get_trap_id(struct qeth_card *card, struct qeth_trap_id *tid) 30691da74b1cSFrank Blaschka { 30701da74b1cSFrank Blaschka unsigned long info = get_zeroed_page(GFP_KERNEL); 30711da74b1cSFrank Blaschka struct sysinfo_2_2_2 *info222 = (struct sysinfo_2_2_2 *)info; 30721da74b1cSFrank Blaschka struct sysinfo_3_2_2 *info322 = (struct sysinfo_3_2_2 *)info; 30731da74b1cSFrank Blaschka struct ccw_dev_id ccwid; 3074caf757c6SHeiko Carstens int level; 30751da74b1cSFrank Blaschka 30761da74b1cSFrank Blaschka tid->chpid = card->info.chpid; 30771da74b1cSFrank Blaschka ccw_device_get_id(CARD_RDEV(card), &ccwid); 30781da74b1cSFrank Blaschka tid->ssid = ccwid.ssid; 30791da74b1cSFrank Blaschka tid->devno = ccwid.devno; 30801da74b1cSFrank Blaschka if (!info) 30811da74b1cSFrank Blaschka return; 3082caf757c6SHeiko Carstens level = stsi(NULL, 0, 0, 0); 3083caf757c6SHeiko Carstens if ((level >= 2) && (stsi(info222, 2, 2, 2) == 0)) 30841da74b1cSFrank Blaschka tid->lparnr = info222->lpar_number; 3085caf757c6SHeiko Carstens if ((level >= 3) && (stsi(info322, 3, 2, 2) == 0)) { 30861da74b1cSFrank Blaschka EBCASC(info322->vm[0].name, sizeof(info322->vm[0].name)); 30871da74b1cSFrank Blaschka memcpy(tid->vmname, info322->vm[0].name, sizeof(tid->vmname)); 30881da74b1cSFrank Blaschka } 30891da74b1cSFrank Blaschka free_page(info); 30901da74b1cSFrank Blaschka return; 30911da74b1cSFrank Blaschka } 30921da74b1cSFrank Blaschka 30931da74b1cSFrank Blaschka static int qeth_hw_trap_cb(struct qeth_card *card, 30941da74b1cSFrank Blaschka struct qeth_reply *reply, unsigned long data) 30951da74b1cSFrank Blaschka { 3096742d4d40SJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 3097742d4d40SJulian Wiedmann u16 rc = cmd->hdr.return_code; 30981da74b1cSFrank Blaschka 3099742d4d40SJulian Wiedmann if (rc) { 31001da74b1cSFrank Blaschka QETH_CARD_TEXT_(card, 2, "trapc:%x", rc); 3101742d4d40SJulian Wiedmann return -EIO; 3102742d4d40SJulian Wiedmann } 31031da74b1cSFrank Blaschka return 0; 31041da74b1cSFrank Blaschka } 31051da74b1cSFrank Blaschka 31061da74b1cSFrank Blaschka int qeth_hw_trap(struct qeth_card *card, enum qeth_diags_trap_action action) 31071da74b1cSFrank Blaschka { 31081da74b1cSFrank Blaschka struct qeth_cmd_buffer *iob; 31091da74b1cSFrank Blaschka struct qeth_ipa_cmd *cmd; 31101da74b1cSFrank Blaschka 31111da74b1cSFrank Blaschka QETH_DBF_TEXT(SETUP, 2, "diagtrap"); 31121da74b1cSFrank Blaschka iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0); 31131aec42bcSThomas Richter if (!iob) 31141aec42bcSThomas Richter return -ENOMEM; 3115ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 31161da74b1cSFrank Blaschka cmd->data.diagass.subcmd_len = 80; 31171da74b1cSFrank Blaschka cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRAP; 31181da74b1cSFrank Blaschka cmd->data.diagass.type = 1; 31191da74b1cSFrank Blaschka cmd->data.diagass.action = action; 31201da74b1cSFrank Blaschka switch (action) { 31211da74b1cSFrank Blaschka case QETH_DIAGS_TRAP_ARM: 31221da74b1cSFrank Blaschka cmd->data.diagass.options = 0x0003; 31231da74b1cSFrank Blaschka cmd->data.diagass.ext = 0x00010000 + 31241da74b1cSFrank Blaschka sizeof(struct qeth_trap_id); 31251da74b1cSFrank Blaschka qeth_get_trap_id(card, 31261da74b1cSFrank Blaschka (struct qeth_trap_id *)cmd->data.diagass.cdata); 31271da74b1cSFrank Blaschka break; 31281da74b1cSFrank Blaschka case QETH_DIAGS_TRAP_DISARM: 31291da74b1cSFrank Blaschka cmd->data.diagass.options = 0x0001; 31301da74b1cSFrank Blaschka break; 31311da74b1cSFrank Blaschka case QETH_DIAGS_TRAP_CAPTURE: 31321da74b1cSFrank Blaschka break; 31331da74b1cSFrank Blaschka } 31341da74b1cSFrank Blaschka return qeth_send_ipa_cmd(card, iob, qeth_hw_trap_cb, NULL); 31351da74b1cSFrank Blaschka } 31361da74b1cSFrank Blaschka EXPORT_SYMBOL_GPL(qeth_hw_trap); 31371da74b1cSFrank Blaschka 3138d73ef324SJulian Wiedmann static int qeth_check_qdio_errors(struct qeth_card *card, 3139d73ef324SJulian Wiedmann struct qdio_buffer *buf, 3140d73ef324SJulian Wiedmann unsigned int qdio_error, 3141d73ef324SJulian Wiedmann const char *dbftext) 31424a71df50SFrank Blaschka { 3143779e6e1cSJan Glauber if (qdio_error) { 3144847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, dbftext); 314538593d01SCarsten Otte QETH_CARD_TEXT_(card, 2, " F15=%02X", 31463ec90878SJan Glauber buf->element[15].sflags); 314738593d01SCarsten Otte QETH_CARD_TEXT_(card, 2, " F14=%02X", 31483ec90878SJan Glauber buf->element[14].sflags); 314938593d01SCarsten Otte QETH_CARD_TEXT_(card, 2, " qerr=%X", qdio_error); 31503ec90878SJan Glauber if ((buf->element[15].sflags) == 0x12) { 3151b0abc4f5SJulian Wiedmann QETH_CARD_STAT_INC(card, rx_dropped); 315276b11f8eSUrsula Braun return 0; 315376b11f8eSUrsula Braun } else 31544a71df50SFrank Blaschka return 1; 31554a71df50SFrank Blaschka } 31564a71df50SFrank Blaschka return 0; 31574a71df50SFrank Blaschka } 31584a71df50SFrank Blaschka 3159d73ef324SJulian Wiedmann static void qeth_queue_input_buffer(struct qeth_card *card, int index) 31604a71df50SFrank Blaschka { 31614a71df50SFrank Blaschka struct qeth_qdio_q *queue = card->qdio.in_q; 3162b3332930SFrank Blaschka struct list_head *lh; 31634a71df50SFrank Blaschka int count; 31644a71df50SFrank Blaschka int i; 31654a71df50SFrank Blaschka int rc; 31664a71df50SFrank Blaschka int newcount = 0; 31674a71df50SFrank Blaschka 31684a71df50SFrank Blaschka count = (index < queue->next_buf_to_init)? 31694a71df50SFrank Blaschka card->qdio.in_buf_pool.buf_count - 31704a71df50SFrank Blaschka (queue->next_buf_to_init - index) : 31714a71df50SFrank Blaschka card->qdio.in_buf_pool.buf_count - 31724a71df50SFrank Blaschka (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index); 31734a71df50SFrank Blaschka /* only requeue at a certain threshold to avoid SIGAs */ 31744a71df50SFrank Blaschka if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) { 31754a71df50SFrank Blaschka for (i = queue->next_buf_to_init; 31764a71df50SFrank Blaschka i < queue->next_buf_to_init + count; ++i) { 31774a71df50SFrank Blaschka if (qeth_init_input_buffer(card, 31784a71df50SFrank Blaschka &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) { 31794a71df50SFrank Blaschka break; 31804a71df50SFrank Blaschka } else { 31814a71df50SFrank Blaschka newcount++; 31824a71df50SFrank Blaschka } 31834a71df50SFrank Blaschka } 31844a71df50SFrank Blaschka 31854a71df50SFrank Blaschka if (newcount < count) { 31864a71df50SFrank Blaschka /* we are in memory shortage so we switch back to 31874a71df50SFrank Blaschka traditional skb allocation and drop packages */ 31884a71df50SFrank Blaschka atomic_set(&card->force_alloc_skb, 3); 31894a71df50SFrank Blaschka count = newcount; 31904a71df50SFrank Blaschka } else { 31914a71df50SFrank Blaschka atomic_add_unless(&card->force_alloc_skb, -1, 0); 31924a71df50SFrank Blaschka } 31934a71df50SFrank Blaschka 3194b3332930SFrank Blaschka if (!count) { 3195b3332930SFrank Blaschka i = 0; 3196b3332930SFrank Blaschka list_for_each(lh, &card->qdio.in_buf_pool.entry_list) 3197b3332930SFrank Blaschka i++; 3198b3332930SFrank Blaschka if (i == card->qdio.in_buf_pool.buf_count) { 3199b3332930SFrank Blaschka QETH_CARD_TEXT(card, 2, "qsarbw"); 3200b3332930SFrank Blaschka card->reclaim_index = index; 3201b3332930SFrank Blaschka schedule_delayed_work( 3202b3332930SFrank Blaschka &card->buffer_reclaim_work, 3203b3332930SFrank Blaschka QETH_RECLAIM_WORK_TIME); 3204b3332930SFrank Blaschka } 3205b3332930SFrank Blaschka return; 3206b3332930SFrank Blaschka } 3207b3332930SFrank Blaschka 32084a71df50SFrank Blaschka /* 32094a71df50SFrank Blaschka * according to old code it should be avoided to requeue all 32104a71df50SFrank Blaschka * 128 buffers in order to benefit from PCI avoidance. 32114a71df50SFrank Blaschka * this function keeps at least one buffer (the buffer at 32124a71df50SFrank Blaschka * 'index') un-requeued -> this buffer is the first buffer that 32134a71df50SFrank Blaschka * will be requeued the next time 32144a71df50SFrank Blaschka */ 3215779e6e1cSJan Glauber rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 3216779e6e1cSJan Glauber queue->next_buf_to_init, count); 32174a71df50SFrank Blaschka if (rc) { 3218847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "qinberr"); 32194a71df50SFrank Blaschka } 32204a71df50SFrank Blaschka queue->next_buf_to_init = (queue->next_buf_to_init + count) % 32214a71df50SFrank Blaschka QDIO_MAX_BUFFERS_PER_Q; 32224a71df50SFrank Blaschka } 32234a71df50SFrank Blaschka } 3224d73ef324SJulian Wiedmann 3225d73ef324SJulian Wiedmann static void qeth_buffer_reclaim_work(struct work_struct *work) 3226d73ef324SJulian Wiedmann { 3227d73ef324SJulian Wiedmann struct qeth_card *card = container_of(work, struct qeth_card, 3228d73ef324SJulian Wiedmann buffer_reclaim_work.work); 3229d73ef324SJulian Wiedmann 3230d73ef324SJulian Wiedmann QETH_CARD_TEXT_(card, 2, "brw:%x", card->reclaim_index); 3231d73ef324SJulian Wiedmann qeth_queue_input_buffer(card, card->reclaim_index); 3232d73ef324SJulian Wiedmann } 32334a71df50SFrank Blaschka 3234d7a39937SJulian Wiedmann static void qeth_handle_send_error(struct qeth_card *card, 3235779e6e1cSJan Glauber struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err) 32364a71df50SFrank Blaschka { 32373ec90878SJan Glauber int sbalf15 = buffer->buffer->element[15].sflags; 32384a71df50SFrank Blaschka 3239847a50fdSCarsten Otte QETH_CARD_TEXT(card, 6, "hdsnderr"); 324058490f18SKlaus-Dieter Wacker if (card->info.type == QETH_CARD_TYPE_IQD) { 324158490f18SKlaus-Dieter Wacker if (sbalf15 == 0) { 324258490f18SKlaus-Dieter Wacker qdio_err = 0; 324358490f18SKlaus-Dieter Wacker } else { 324458490f18SKlaus-Dieter Wacker qdio_err = 1; 324558490f18SKlaus-Dieter Wacker } 324658490f18SKlaus-Dieter Wacker } 324776b11f8eSUrsula Braun qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qouterr"); 3248d303b6fdSJan Glauber 3249d303b6fdSJan Glauber if (!qdio_err) 3250d7a39937SJulian Wiedmann return; 3251d303b6fdSJan Glauber 3252d303b6fdSJan Glauber if ((sbalf15 >= 15) && (sbalf15 <= 31)) 3253d7a39937SJulian Wiedmann return; 3254d303b6fdSJan Glauber 3255847a50fdSCarsten Otte QETH_CARD_TEXT(card, 1, "lnkfail"); 3256847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 1, "%04x %02x", 32574a71df50SFrank Blaschka (u16)qdio_err, (u8)sbalf15); 32584a71df50SFrank Blaschka } 32594a71df50SFrank Blaschka 3260664e42acSJulian Wiedmann /** 3261664e42acSJulian Wiedmann * qeth_prep_flush_pack_buffer - Prepares flushing of a packing buffer. 3262664e42acSJulian Wiedmann * @queue: queue to check for packing buffer 3263664e42acSJulian Wiedmann * 3264664e42acSJulian Wiedmann * Returns number of buffers that were prepared for flush. 3265664e42acSJulian Wiedmann */ 3266664e42acSJulian Wiedmann static int qeth_prep_flush_pack_buffer(struct qeth_qdio_out_q *queue) 3267664e42acSJulian Wiedmann { 3268664e42acSJulian Wiedmann struct qeth_qdio_out_buffer *buffer; 3269664e42acSJulian Wiedmann 3270664e42acSJulian Wiedmann buffer = queue->bufs[queue->next_buf_to_fill]; 3271664e42acSJulian Wiedmann if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) && 3272664e42acSJulian Wiedmann (buffer->next_element_to_fill > 0)) { 3273664e42acSJulian Wiedmann /* it's a packing buffer */ 3274664e42acSJulian Wiedmann atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); 3275664e42acSJulian Wiedmann queue->next_buf_to_fill = 3276664e42acSJulian Wiedmann (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q; 3277664e42acSJulian Wiedmann return 1; 3278664e42acSJulian Wiedmann } 3279664e42acSJulian Wiedmann return 0; 3280664e42acSJulian Wiedmann } 3281664e42acSJulian Wiedmann 32824a71df50SFrank Blaschka /* 32834a71df50SFrank Blaschka * Switched to packing state if the number of used buffers on a queue 32844a71df50SFrank Blaschka * reaches a certain limit. 32854a71df50SFrank Blaschka */ 32864a71df50SFrank Blaschka static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue) 32874a71df50SFrank Blaschka { 32884a71df50SFrank Blaschka if (!queue->do_pack) { 32894a71df50SFrank Blaschka if (atomic_read(&queue->used_buffers) 32904a71df50SFrank Blaschka >= QETH_HIGH_WATERMARK_PACK){ 32914a71df50SFrank Blaschka /* switch non-PACKING -> PACKING */ 3292847a50fdSCarsten Otte QETH_CARD_TEXT(queue->card, 6, "np->pack"); 3293b0abc4f5SJulian Wiedmann QETH_TXQ_STAT_INC(queue, packing_mode_switch); 32944a71df50SFrank Blaschka queue->do_pack = 1; 32954a71df50SFrank Blaschka } 32964a71df50SFrank Blaschka } 32974a71df50SFrank Blaschka } 32984a71df50SFrank Blaschka 32994a71df50SFrank Blaschka /* 33004a71df50SFrank Blaschka * Switches from packing to non-packing mode. If there is a packing 33014a71df50SFrank Blaschka * buffer on the queue this buffer will be prepared to be flushed. 33024a71df50SFrank Blaschka * In that case 1 is returned to inform the caller. If no buffer 33034a71df50SFrank Blaschka * has to be flushed, zero is returned. 33044a71df50SFrank Blaschka */ 33054a71df50SFrank Blaschka static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue) 33064a71df50SFrank Blaschka { 33074a71df50SFrank Blaschka if (queue->do_pack) { 33084a71df50SFrank Blaschka if (atomic_read(&queue->used_buffers) 33094a71df50SFrank Blaschka <= QETH_LOW_WATERMARK_PACK) { 33104a71df50SFrank Blaschka /* switch PACKING -> non-PACKING */ 3311847a50fdSCarsten Otte QETH_CARD_TEXT(queue->card, 6, "pack->np"); 3312b0abc4f5SJulian Wiedmann QETH_TXQ_STAT_INC(queue, packing_mode_switch); 33134a71df50SFrank Blaschka queue->do_pack = 0; 3314664e42acSJulian Wiedmann return qeth_prep_flush_pack_buffer(queue); 33154a71df50SFrank Blaschka } 33164a71df50SFrank Blaschka } 33174a71df50SFrank Blaschka return 0; 33184a71df50SFrank Blaschka } 33194a71df50SFrank Blaschka 3320779e6e1cSJan Glauber static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index, 3321779e6e1cSJan Glauber int count) 33224a71df50SFrank Blaschka { 33234a71df50SFrank Blaschka struct qeth_qdio_out_buffer *buf; 33244a71df50SFrank Blaschka int rc; 33254a71df50SFrank Blaschka int i; 33264a71df50SFrank Blaschka unsigned int qdio_flags; 33274a71df50SFrank Blaschka 33284a71df50SFrank Blaschka for (i = index; i < index + count; ++i) { 33290da9581dSEinar Lueck int bidx = i % QDIO_MAX_BUFFERS_PER_Q; 33300da9581dSEinar Lueck buf = queue->bufs[bidx]; 33313ec90878SJan Glauber buf->buffer->element[buf->next_element_to_fill - 1].eflags |= 33323ec90878SJan Glauber SBAL_EFLAGS_LAST_ENTRY; 33334a71df50SFrank Blaschka 33340da9581dSEinar Lueck if (queue->bufstates) 33350da9581dSEinar Lueck queue->bufstates[bidx].user = buf; 33360da9581dSEinar Lueck 33374a71df50SFrank Blaschka if (queue->card->info.type == QETH_CARD_TYPE_IQD) 33384a71df50SFrank Blaschka continue; 33394a71df50SFrank Blaschka 33404a71df50SFrank Blaschka if (!queue->do_pack) { 33414a71df50SFrank Blaschka if ((atomic_read(&queue->used_buffers) >= 33424a71df50SFrank Blaschka (QETH_HIGH_WATERMARK_PACK - 33434a71df50SFrank Blaschka QETH_WATERMARK_PACK_FUZZ)) && 33444a71df50SFrank Blaschka !atomic_read(&queue->set_pci_flags_count)) { 33454a71df50SFrank Blaschka /* it's likely that we'll go to packing 33464a71df50SFrank Blaschka * mode soon */ 33474a71df50SFrank Blaschka atomic_inc(&queue->set_pci_flags_count); 33483ec90878SJan Glauber buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ; 33494a71df50SFrank Blaschka } 33504a71df50SFrank Blaschka } else { 33514a71df50SFrank Blaschka if (!atomic_read(&queue->set_pci_flags_count)) { 33524a71df50SFrank Blaschka /* 33534a71df50SFrank Blaschka * there's no outstanding PCI any more, so we 33544a71df50SFrank Blaschka * have to request a PCI to be sure the the PCI 33554a71df50SFrank Blaschka * will wake at some time in the future then we 33564a71df50SFrank Blaschka * can flush packed buffers that might still be 33574a71df50SFrank Blaschka * hanging around, which can happen if no 33584a71df50SFrank Blaschka * further send was requested by the stack 33594a71df50SFrank Blaschka */ 33604a71df50SFrank Blaschka atomic_inc(&queue->set_pci_flags_count); 33613ec90878SJan Glauber buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ; 33624a71df50SFrank Blaschka } 33634a71df50SFrank Blaschka } 33644a71df50SFrank Blaschka } 33654a71df50SFrank Blaschka 3366b0abc4f5SJulian Wiedmann QETH_TXQ_STAT_ADD(queue, bufs, count); 33674a71df50SFrank Blaschka qdio_flags = QDIO_FLAG_SYNC_OUTPUT; 33684a71df50SFrank Blaschka if (atomic_read(&queue->set_pci_flags_count)) 33694a71df50SFrank Blaschka qdio_flags |= QDIO_FLAG_PCI_OUT; 3370a702349aSJulian Wiedmann atomic_add(count, &queue->used_buffers); 33714a71df50SFrank Blaschka rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags, 3372779e6e1cSJan Glauber queue->queue_no, index, count); 33734a71df50SFrank Blaschka if (rc) { 3374b0abc4f5SJulian Wiedmann QETH_TXQ_STAT_ADD(queue, tx_errors, count); 3375d303b6fdSJan Glauber /* ignore temporary SIGA errors without busy condition */ 33761549d13fSJan Glauber if (rc == -ENOBUFS) 3377d303b6fdSJan Glauber return; 3378847a50fdSCarsten Otte QETH_CARD_TEXT(queue->card, 2, "flushbuf"); 33790da9581dSEinar Lueck QETH_CARD_TEXT_(queue->card, 2, " q%d", queue->queue_no); 33800da9581dSEinar Lueck QETH_CARD_TEXT_(queue->card, 2, " idx%d", index); 33810da9581dSEinar Lueck QETH_CARD_TEXT_(queue->card, 2, " c%d", count); 3382847a50fdSCarsten Otte QETH_CARD_TEXT_(queue->card, 2, " err%d", rc); 3383d303b6fdSJan Glauber 33844a71df50SFrank Blaschka /* this must not happen under normal circumstances. if it 33854a71df50SFrank Blaschka * happens something is really wrong -> recover */ 33864a71df50SFrank Blaschka qeth_schedule_recovery(queue->card); 33874a71df50SFrank Blaschka return; 33884a71df50SFrank Blaschka } 33894a71df50SFrank Blaschka } 33904a71df50SFrank Blaschka 33914a71df50SFrank Blaschka static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue) 33924a71df50SFrank Blaschka { 33934a71df50SFrank Blaschka int index; 33944a71df50SFrank Blaschka int flush_cnt = 0; 33954a71df50SFrank Blaschka int q_was_packing = 0; 33964a71df50SFrank Blaschka 33974a71df50SFrank Blaschka /* 33984a71df50SFrank Blaschka * check if weed have to switch to non-packing mode or if 33994a71df50SFrank Blaschka * we have to get a pci flag out on the queue 34004a71df50SFrank Blaschka */ 34014a71df50SFrank Blaschka if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) || 34024a71df50SFrank Blaschka !atomic_read(&queue->set_pci_flags_count)) { 34034a71df50SFrank Blaschka if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) == 34044a71df50SFrank Blaschka QETH_OUT_Q_UNLOCKED) { 34054a71df50SFrank Blaschka /* 34064a71df50SFrank Blaschka * If we get in here, there was no action in 34074a71df50SFrank Blaschka * do_send_packet. So, we check if there is a 34084a71df50SFrank Blaschka * packing buffer to be flushed here. 34094a71df50SFrank Blaschka */ 341073dc2dafSJulian Wiedmann netif_stop_subqueue(queue->card->dev, queue->queue_no); 34114a71df50SFrank Blaschka index = queue->next_buf_to_fill; 34124a71df50SFrank Blaschka q_was_packing = queue->do_pack; 34134a71df50SFrank Blaschka /* queue->do_pack may change */ 34144a71df50SFrank Blaschka barrier(); 34154a71df50SFrank Blaschka flush_cnt += qeth_switch_to_nonpacking_if_needed(queue); 34164a71df50SFrank Blaschka if (!flush_cnt && 34174a71df50SFrank Blaschka !atomic_read(&queue->set_pci_flags_count)) 3418664e42acSJulian Wiedmann flush_cnt += qeth_prep_flush_pack_buffer(queue); 3419b0abc4f5SJulian Wiedmann if (q_was_packing) 3420b0abc4f5SJulian Wiedmann QETH_TXQ_STAT_ADD(queue, bufs_pack, flush_cnt); 34214a71df50SFrank Blaschka if (flush_cnt) 3422779e6e1cSJan Glauber qeth_flush_buffers(queue, index, flush_cnt); 34234a71df50SFrank Blaschka atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); 34244a71df50SFrank Blaschka } 34254a71df50SFrank Blaschka } 34264a71df50SFrank Blaschka } 34274a71df50SFrank Blaschka 34287bcd64ebSJulian Wiedmann static void qeth_qdio_start_poll(struct ccw_device *ccwdev, int queue, 3429a1c3ed4cSFrank Blaschka unsigned long card_ptr) 3430a1c3ed4cSFrank Blaschka { 3431a1c3ed4cSFrank Blaschka struct qeth_card *card = (struct qeth_card *)card_ptr; 3432a1c3ed4cSFrank Blaschka 3433d3d1b205SJulian Wiedmann if (card->dev->flags & IFF_UP) 3434a1c3ed4cSFrank Blaschka napi_schedule(&card->napi); 3435a1c3ed4cSFrank Blaschka } 3436a1c3ed4cSFrank Blaschka 34370da9581dSEinar Lueck int qeth_configure_cq(struct qeth_card *card, enum qeth_cq cq) 34380da9581dSEinar Lueck { 34390da9581dSEinar Lueck int rc; 34400da9581dSEinar Lueck 34410da9581dSEinar Lueck if (card->options.cq == QETH_CQ_NOTAVAILABLE) { 34420da9581dSEinar Lueck rc = -1; 34430da9581dSEinar Lueck goto out; 34440da9581dSEinar Lueck } else { 34450da9581dSEinar Lueck if (card->options.cq == cq) { 34460da9581dSEinar Lueck rc = 0; 34470da9581dSEinar Lueck goto out; 34480da9581dSEinar Lueck } 34490da9581dSEinar Lueck 3450d7d543f2SJulian Wiedmann if (card->state != CARD_STATE_DOWN) { 34510da9581dSEinar Lueck rc = -1; 34520da9581dSEinar Lueck goto out; 34530da9581dSEinar Lueck } 34540da9581dSEinar Lueck 345541c47da3SJulian Wiedmann qeth_free_qdio_queues(card); 34560da9581dSEinar Lueck card->options.cq = cq; 34570da9581dSEinar Lueck rc = 0; 34580da9581dSEinar Lueck } 34590da9581dSEinar Lueck out: 34600da9581dSEinar Lueck return rc; 34610da9581dSEinar Lueck 34620da9581dSEinar Lueck } 34630da9581dSEinar Lueck EXPORT_SYMBOL_GPL(qeth_configure_cq); 34640da9581dSEinar Lueck 34653b346c18SJulian Wiedmann static void qeth_qdio_cq_handler(struct qeth_card *card, unsigned int qdio_err, 34663b346c18SJulian Wiedmann unsigned int queue, int first_element, 34673b346c18SJulian Wiedmann int count) 34683b346c18SJulian Wiedmann { 34690da9581dSEinar Lueck struct qeth_qdio_q *cq = card->qdio.c_q; 34700da9581dSEinar Lueck int i; 34710da9581dSEinar Lueck int rc; 34720da9581dSEinar Lueck 34730da9581dSEinar Lueck if (!qeth_is_cq(card, queue)) 34744326b5b4SJulian Wiedmann return; 34750da9581dSEinar Lueck 34760da9581dSEinar Lueck QETH_CARD_TEXT_(card, 5, "qcqhe%d", first_element); 34770da9581dSEinar Lueck QETH_CARD_TEXT_(card, 5, "qcqhc%d", count); 34780da9581dSEinar Lueck QETH_CARD_TEXT_(card, 5, "qcqherr%d", qdio_err); 34790da9581dSEinar Lueck 34800da9581dSEinar Lueck if (qdio_err) { 34813a18d754SJulian Wiedmann netif_tx_stop_all_queues(card->dev); 34820da9581dSEinar Lueck qeth_schedule_recovery(card); 34834326b5b4SJulian Wiedmann return; 34840da9581dSEinar Lueck } 34850da9581dSEinar Lueck 34860da9581dSEinar Lueck for (i = first_element; i < first_element + count; ++i) { 34870da9581dSEinar Lueck int bidx = i % QDIO_MAX_BUFFERS_PER_Q; 34886d284bdeSSebastian Ott struct qdio_buffer *buffer = cq->qdio_bufs[bidx]; 34893b346c18SJulian Wiedmann int e = 0; 34900da9581dSEinar Lueck 3491903e4853SUrsula Braun while ((e < QDIO_MAX_ELEMENTS_PER_BUFFER) && 3492903e4853SUrsula Braun buffer->element[e].addr) { 34930da9581dSEinar Lueck unsigned long phys_aob_addr; 34940da9581dSEinar Lueck 34950da9581dSEinar Lueck phys_aob_addr = (unsigned long) buffer->element[e].addr; 34960da9581dSEinar Lueck qeth_qdio_handle_aob(card, phys_aob_addr); 34970da9581dSEinar Lueck ++e; 34980da9581dSEinar Lueck } 34993b346c18SJulian Wiedmann qeth_scrub_qdio_buffer(buffer, QDIO_MAX_ELEMENTS_PER_BUFFER); 35000da9581dSEinar Lueck } 35010da9581dSEinar Lueck rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, queue, 35020da9581dSEinar Lueck card->qdio.c_q->next_buf_to_init, 35030da9581dSEinar Lueck count); 35040da9581dSEinar Lueck if (rc) { 35050da9581dSEinar Lueck dev_warn(&card->gdev->dev, 35060da9581dSEinar Lueck "QDIO reported an error, rc=%i\n", rc); 35070da9581dSEinar Lueck QETH_CARD_TEXT(card, 2, "qcqherr"); 35080da9581dSEinar Lueck } 35090da9581dSEinar Lueck card->qdio.c_q->next_buf_to_init = (card->qdio.c_q->next_buf_to_init 35100da9581dSEinar Lueck + count) % QDIO_MAX_BUFFERS_PER_Q; 35110da9581dSEinar Lueck } 35120da9581dSEinar Lueck 35137bcd64ebSJulian Wiedmann static void qeth_qdio_input_handler(struct ccw_device *ccwdev, 35147bcd64ebSJulian Wiedmann unsigned int qdio_err, int queue, 35157bcd64ebSJulian Wiedmann int first_elem, int count, 3516a1c3ed4cSFrank Blaschka unsigned long card_ptr) 3517a1c3ed4cSFrank Blaschka { 3518a1c3ed4cSFrank Blaschka struct qeth_card *card = (struct qeth_card *)card_ptr; 3519a1c3ed4cSFrank Blaschka 35200da9581dSEinar Lueck QETH_CARD_TEXT_(card, 2, "qihq%d", queue); 35210da9581dSEinar Lueck QETH_CARD_TEXT_(card, 2, "qiec%d", qdio_err); 35220da9581dSEinar Lueck 35230da9581dSEinar Lueck if (qeth_is_cq(card, queue)) 35240da9581dSEinar Lueck qeth_qdio_cq_handler(card, qdio_err, queue, first_elem, count); 35250da9581dSEinar Lueck else if (qdio_err) 3526a1c3ed4cSFrank Blaschka qeth_schedule_recovery(card); 3527a1c3ed4cSFrank Blaschka } 3528a1c3ed4cSFrank Blaschka 35297bcd64ebSJulian Wiedmann static void qeth_qdio_output_handler(struct ccw_device *ccwdev, 35307bcd64ebSJulian Wiedmann unsigned int qdio_error, int __queue, 35317bcd64ebSJulian Wiedmann int first_element, int count, 35327bcd64ebSJulian Wiedmann unsigned long card_ptr) 35334a71df50SFrank Blaschka { 35344a71df50SFrank Blaschka struct qeth_card *card = (struct qeth_card *) card_ptr; 35354a71df50SFrank Blaschka struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue]; 35364a71df50SFrank Blaschka struct qeth_qdio_out_buffer *buffer; 35373a18d754SJulian Wiedmann struct net_device *dev = card->dev; 35383a18d754SJulian Wiedmann u16 txq; 35394a71df50SFrank Blaschka int i; 35404a71df50SFrank Blaschka 3541847a50fdSCarsten Otte QETH_CARD_TEXT(card, 6, "qdouhdl"); 35421549d13fSJan Glauber if (qdio_error & QDIO_ERROR_FATAL) { 3543847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "achkcond"); 35443a18d754SJulian Wiedmann netif_tx_stop_all_queues(dev); 35454a71df50SFrank Blaschka qeth_schedule_recovery(card); 35464a71df50SFrank Blaschka return; 35474a71df50SFrank Blaschka } 35484326b5b4SJulian Wiedmann 35494a71df50SFrank Blaschka for (i = first_element; i < (first_element + count); ++i) { 35500da9581dSEinar Lueck int bidx = i % QDIO_MAX_BUFFERS_PER_Q; 35510da9581dSEinar Lueck buffer = queue->bufs[bidx]; 3552b67d801fSUrsula Braun qeth_handle_send_error(card, buffer, qdio_error); 35530da9581dSEinar Lueck 35540da9581dSEinar Lueck if (queue->bufstates && 35550da9581dSEinar Lueck (queue->bufstates[bidx].flags & 35560da9581dSEinar Lueck QDIO_OUTBUF_STATE_FLAG_PENDING) != 0) { 355718af5c17SStefan Raspl WARN_ON_ONCE(card->options.cq != QETH_CQ_ENABLED); 3558b3332930SFrank Blaschka 3559b3332930SFrank Blaschka if (atomic_cmpxchg(&buffer->state, 3560b3332930SFrank Blaschka QETH_QDIO_BUF_PRIMED, 3561b3332930SFrank Blaschka QETH_QDIO_BUF_PENDING) == 3562b3332930SFrank Blaschka QETH_QDIO_BUF_PRIMED) { 3563b3332930SFrank Blaschka qeth_notify_skbs(queue, buffer, 3564b3332930SFrank Blaschka TX_NOTIFY_PENDING); 3565b3332930SFrank Blaschka } 35660da9581dSEinar Lueck QETH_CARD_TEXT_(queue->card, 5, "pel%d", bidx); 3567ce28867fSJulian Wiedmann 3568ce28867fSJulian Wiedmann /* prepare the queue slot for re-use: */ 3569ce28867fSJulian Wiedmann qeth_scrub_qdio_buffer(buffer->buffer, 3570ce28867fSJulian Wiedmann QETH_MAX_BUFFER_ELEMENTS(card)); 3571b3332930SFrank Blaschka if (qeth_init_qdio_out_buf(queue, bidx)) { 3572b3332930SFrank Blaschka QETH_CARD_TEXT(card, 2, "outofbuf"); 35730da9581dSEinar Lueck qeth_schedule_recovery(card); 3574b3332930SFrank Blaschka } 35750da9581dSEinar Lueck } else { 3576b3332930SFrank Blaschka if (card->options.cq == QETH_CQ_ENABLED) { 3577b3332930SFrank Blaschka enum iucv_tx_notify n; 3578b3332930SFrank Blaschka 3579b3332930SFrank Blaschka n = qeth_compute_cq_notification( 3580b3332930SFrank Blaschka buffer->buffer->element[15].sflags, 0); 3581b3332930SFrank Blaschka qeth_notify_skbs(queue, buffer, n); 3582b3332930SFrank Blaschka } 3583b3332930SFrank Blaschka 35843b346c18SJulian Wiedmann qeth_clear_output_buffer(queue, buffer); 35850da9581dSEinar Lueck } 35860da9581dSEinar Lueck qeth_cleanup_handled_pending(queue, bidx, 0); 35874a71df50SFrank Blaschka } 35884a71df50SFrank Blaschka atomic_sub(count, &queue->used_buffers); 35894a71df50SFrank Blaschka /* check if we need to do something on this outbound queue */ 35904a71df50SFrank Blaschka if (card->info.type != QETH_CARD_TYPE_IQD) 35914a71df50SFrank Blaschka qeth_check_outbound_queue(queue); 35924a71df50SFrank Blaschka 359373dc2dafSJulian Wiedmann txq = IS_IQD(card) ? qeth_iqd_translate_txq(dev, __queue) : __queue; 35943a18d754SJulian Wiedmann netif_wake_subqueue(dev, txq); 35954a71df50SFrank Blaschka } 35964a71df50SFrank Blaschka 3597290b8348SStefan Raspl /** 3598290b8348SStefan Raspl * Note: Function assumes that we have 4 outbound queues. 3599290b8348SStefan Raspl */ 360073dc2dafSJulian Wiedmann int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb) 36014a71df50SFrank Blaschka { 3602e6c15b5fSJulian Wiedmann struct vlan_ethhdr *veth = vlan_eth_hdr(skb); 3603290b8348SStefan Raspl u8 tos; 3604290b8348SStefan Raspl 3605290b8348SStefan Raspl switch (card->qdio.do_prio_queueing) { 3606290b8348SStefan Raspl case QETH_PRIO_Q_ING_TOS: 3607290b8348SStefan Raspl case QETH_PRIO_Q_ING_PREC: 360873dc2dafSJulian Wiedmann switch (qeth_get_ip_version(skb)) { 3609290b8348SStefan Raspl case 4: 3610290b8348SStefan Raspl tos = ipv4_get_dsfield(ip_hdr(skb)); 3611290b8348SStefan Raspl break; 3612290b8348SStefan Raspl case 6: 3613290b8348SStefan Raspl tos = ipv6_get_dsfield(ipv6_hdr(skb)); 3614290b8348SStefan Raspl break; 36154a71df50SFrank Blaschka default: 36164a71df50SFrank Blaschka return card->qdio.default_out_queue; 36174a71df50SFrank Blaschka } 3618290b8348SStefan Raspl if (card->qdio.do_prio_queueing == QETH_PRIO_Q_ING_PREC) 3619e6c15b5fSJulian Wiedmann return ~tos >> 6 & 3; 3620290b8348SStefan Raspl if (tos & IPTOS_MINCOST) 3621e6c15b5fSJulian Wiedmann return 3; 3622290b8348SStefan Raspl if (tos & IPTOS_RELIABILITY) 3623290b8348SStefan Raspl return 2; 3624290b8348SStefan Raspl if (tos & IPTOS_THROUGHPUT) 3625290b8348SStefan Raspl return 1; 3626290b8348SStefan Raspl if (tos & IPTOS_LOWDELAY) 3627290b8348SStefan Raspl return 0; 3628d66cb37eSStefan Raspl break; 3629d66cb37eSStefan Raspl case QETH_PRIO_Q_ING_SKB: 3630d66cb37eSStefan Raspl if (skb->priority > 5) 3631d66cb37eSStefan Raspl return 0; 3632e6c15b5fSJulian Wiedmann return ~skb->priority >> 1 & 3; 3633d66cb37eSStefan Raspl case QETH_PRIO_Q_ING_VLAN: 3634e6c15b5fSJulian Wiedmann if (veth->h_vlan_proto == htons(ETH_P_8021Q)) 3635e6c15b5fSJulian Wiedmann return ~ntohs(veth->h_vlan_TCI) >> 3636e6c15b5fSJulian Wiedmann (VLAN_PRIO_SHIFT + 1) & 3; 3637d66cb37eSStefan Raspl break; 3638290b8348SStefan Raspl default: 3639290b8348SStefan Raspl break; 3640290b8348SStefan Raspl } 3641290b8348SStefan Raspl return card->qdio.default_out_queue; 36424a71df50SFrank Blaschka } 36434a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_get_priority_queue); 36444a71df50SFrank Blaschka 36452863c613SEugene Crosser /** 36462863c613SEugene Crosser * qeth_get_elements_for_frags() - find number of SBALEs for skb frags. 36472863c613SEugene Crosser * @skb: SKB address 36482863c613SEugene Crosser * 36492863c613SEugene Crosser * Returns the number of pages, and thus QDIO buffer elements, needed to cover 36502863c613SEugene Crosser * fragmented part of the SKB. Returns zero for linear SKB. 36512863c613SEugene Crosser */ 3652356156b6SJulian Wiedmann static int qeth_get_elements_for_frags(struct sk_buff *skb) 3653271648b4SFrank Blaschka { 36542863c613SEugene Crosser int cnt, elements = 0; 3655271648b4SFrank Blaschka 3656271648b4SFrank Blaschka for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) { 36572863c613SEugene Crosser struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[cnt]; 36582863c613SEugene Crosser 36592863c613SEugene Crosser elements += qeth_get_elements_for_range( 36602863c613SEugene Crosser (addr_t)skb_frag_address(frag), 36612863c613SEugene Crosser (addr_t)skb_frag_address(frag) + skb_frag_size(frag)); 3662271648b4SFrank Blaschka } 3663271648b4SFrank Blaschka return elements; 3664271648b4SFrank Blaschka } 3665271648b4SFrank Blaschka 366640e6a225SJulian Wiedmann /** 366740e6a225SJulian Wiedmann * qeth_count_elements() - Counts the number of QDIO buffer elements needed 366840e6a225SJulian Wiedmann * to transmit an skb. 366940e6a225SJulian Wiedmann * @skb: the skb to operate on. 367040e6a225SJulian Wiedmann * @data_offset: skip this part of the skb's linear data 367140e6a225SJulian Wiedmann * 367240e6a225SJulian Wiedmann * Returns the number of pages, and thus QDIO buffer elements, needed to map the 367340e6a225SJulian Wiedmann * skb's data (both its linear part and paged fragments). 367440e6a225SJulian Wiedmann */ 367540e6a225SJulian Wiedmann unsigned int qeth_count_elements(struct sk_buff *skb, unsigned int data_offset) 3676ba86ceeeSJulian Wiedmann { 3677ba86ceeeSJulian Wiedmann unsigned int elements = qeth_get_elements_for_frags(skb); 3678ba86ceeeSJulian Wiedmann addr_t end = (addr_t)skb->data + skb_headlen(skb); 3679ba86ceeeSJulian Wiedmann addr_t start = (addr_t)skb->data + data_offset; 3680ba86ceeeSJulian Wiedmann 3681ba86ceeeSJulian Wiedmann if (start != end) 3682ba86ceeeSJulian Wiedmann elements += qeth_get_elements_for_range(start, end); 3683ba86ceeeSJulian Wiedmann return elements; 3684ba86ceeeSJulian Wiedmann } 368540e6a225SJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_count_elements); 36864a71df50SFrank Blaschka 3687e517b649SJulian Wiedmann #define QETH_HDR_CACHE_OBJ_SIZE (sizeof(struct qeth_hdr_tso) + \ 3688e517b649SJulian Wiedmann MAX_TCP_HEADER) 368955494264SJulian Wiedmann 36900d6f02d3SJulian Wiedmann /** 3691ba86ceeeSJulian Wiedmann * qeth_add_hw_header() - add a HW header to an skb. 3692ba86ceeeSJulian Wiedmann * @skb: skb that the HW header should be added to. 36930d6f02d3SJulian Wiedmann * @hdr: double pointer to a qeth_hdr. When returning with >= 0, 36940d6f02d3SJulian Wiedmann * it contains a valid pointer to a qeth_hdr. 3695a7c2f4a3SJulian Wiedmann * @hdr_len: length of the HW header. 3696a7c2f4a3SJulian Wiedmann * @proto_len: length of protocol headers that need to be in same page as the 3697a7c2f4a3SJulian Wiedmann * HW header. 36980d6f02d3SJulian Wiedmann * 36990d6f02d3SJulian Wiedmann * Returns the pushed length. If the header can't be pushed on 37000d6f02d3SJulian Wiedmann * (eg. because it would cross a page boundary), it is allocated from 37010d6f02d3SJulian Wiedmann * the cache instead and 0 is returned. 3702ba86ceeeSJulian Wiedmann * The number of needed buffer elements is returned in @elements. 37030d6f02d3SJulian Wiedmann * Error to create the hdr is indicated by returning with < 0. 37040d6f02d3SJulian Wiedmann */ 3705b0abc4f5SJulian Wiedmann static int qeth_add_hw_header(struct qeth_qdio_out_q *queue, 3706b0abc4f5SJulian Wiedmann struct sk_buff *skb, struct qeth_hdr **hdr, 3707b0abc4f5SJulian Wiedmann unsigned int hdr_len, unsigned int proto_len, 3708b0abc4f5SJulian Wiedmann unsigned int *elements) 37090d6f02d3SJulian Wiedmann { 3710b0abc4f5SJulian Wiedmann const unsigned int max_elements = QETH_MAX_BUFFER_ELEMENTS(queue->card); 3711a7c2f4a3SJulian Wiedmann const unsigned int contiguous = proto_len ? proto_len : 1; 3712ba86ceeeSJulian Wiedmann unsigned int __elements; 3713ba86ceeeSJulian Wiedmann addr_t start, end; 3714ba86ceeeSJulian Wiedmann bool push_ok; 3715ba86ceeeSJulian Wiedmann int rc; 3716ba86ceeeSJulian Wiedmann 3717ba86ceeeSJulian Wiedmann check_layout: 3718a7c2f4a3SJulian Wiedmann start = (addr_t)skb->data - hdr_len; 3719ba86ceeeSJulian Wiedmann end = (addr_t)skb->data; 3720ba86ceeeSJulian Wiedmann 3721a7c2f4a3SJulian Wiedmann if (qeth_get_elements_for_range(start, end + contiguous) == 1) { 3722ba86ceeeSJulian Wiedmann /* Push HW header into same page as first protocol header. */ 3723ba86ceeeSJulian Wiedmann push_ok = true; 3724e517b649SJulian Wiedmann /* ... but TSO always needs a separate element for headers: */ 3725e517b649SJulian Wiedmann if (skb_is_gso(skb)) 3726e517b649SJulian Wiedmann __elements = 1 + qeth_count_elements(skb, proto_len); 3727e517b649SJulian Wiedmann else 3728ba86ceeeSJulian Wiedmann __elements = qeth_count_elements(skb, 0); 3729a7c2f4a3SJulian Wiedmann } else if (!proto_len && qeth_get_elements_for_range(start, end) == 1) { 3730ba86ceeeSJulian Wiedmann /* Push HW header into a new page. */ 3731ba86ceeeSJulian Wiedmann push_ok = true; 3732a7c2f4a3SJulian Wiedmann __elements = 1 + qeth_count_elements(skb, 0); 3733a7c2f4a3SJulian Wiedmann } else { 3734a7c2f4a3SJulian Wiedmann /* Use header cache, copy protocol headers up. */ 3735ba86ceeeSJulian Wiedmann push_ok = false; 3736a7c2f4a3SJulian Wiedmann __elements = 1 + qeth_count_elements(skb, proto_len); 3737ba86ceeeSJulian Wiedmann } 3738ba86ceeeSJulian Wiedmann 3739ba86ceeeSJulian Wiedmann /* Compress skb to fit into one IO buffer: */ 3740ba86ceeeSJulian Wiedmann if (__elements > max_elements) { 3741ba86ceeeSJulian Wiedmann if (!skb_is_nonlinear(skb)) { 3742ba86ceeeSJulian Wiedmann /* Drop it, no easy way of shrinking it further. */ 3743ba86ceeeSJulian Wiedmann QETH_DBF_MESSAGE(2, "Dropped an oversized skb (Max Elements=%u / Actual=%u / Length=%u).\n", 3744ba86ceeeSJulian Wiedmann max_elements, __elements, skb->len); 3745ba86ceeeSJulian Wiedmann return -E2BIG; 3746ba86ceeeSJulian Wiedmann } 3747ba86ceeeSJulian Wiedmann 3748ba86ceeeSJulian Wiedmann rc = skb_linearize(skb); 3749b0abc4f5SJulian Wiedmann if (rc) { 3750b0abc4f5SJulian Wiedmann QETH_TXQ_STAT_INC(queue, skbs_linearized_fail); 3751ba86ceeeSJulian Wiedmann return rc; 3752b0abc4f5SJulian Wiedmann } 3753ba86ceeeSJulian Wiedmann 3754b0abc4f5SJulian Wiedmann QETH_TXQ_STAT_INC(queue, skbs_linearized); 3755ba86ceeeSJulian Wiedmann /* Linearization changed the layout, re-evaluate: */ 3756ba86ceeeSJulian Wiedmann goto check_layout; 3757ba86ceeeSJulian Wiedmann } 3758ba86ceeeSJulian Wiedmann 3759ba86ceeeSJulian Wiedmann *elements = __elements; 3760ba86ceeeSJulian Wiedmann /* Add the header: */ 3761ba86ceeeSJulian Wiedmann if (push_ok) { 3762a7c2f4a3SJulian Wiedmann *hdr = skb_push(skb, hdr_len); 3763a7c2f4a3SJulian Wiedmann return hdr_len; 37640d6f02d3SJulian Wiedmann } 37650d6f02d3SJulian Wiedmann /* fall back */ 376655494264SJulian Wiedmann if (hdr_len + proto_len > QETH_HDR_CACHE_OBJ_SIZE) 376755494264SJulian Wiedmann return -E2BIG; 37680d6f02d3SJulian Wiedmann *hdr = kmem_cache_alloc(qeth_core_header_cache, GFP_ATOMIC); 37690d6f02d3SJulian Wiedmann if (!*hdr) 37700d6f02d3SJulian Wiedmann return -ENOMEM; 3771a7c2f4a3SJulian Wiedmann /* Copy protocol headers behind HW header: */ 3772a7c2f4a3SJulian Wiedmann skb_copy_from_linear_data(skb, ((char *)*hdr) + hdr_len, proto_len); 37730d6f02d3SJulian Wiedmann return 0; 37740d6f02d3SJulian Wiedmann } 37750d6f02d3SJulian Wiedmann 3776cef6ff22SJulian Wiedmann static void __qeth_fill_buffer(struct sk_buff *skb, 3777384d2ef1SJulian Wiedmann struct qeth_qdio_out_buffer *buf, 3778cc309f83SJulian Wiedmann bool is_first_elem, unsigned int offset) 37794a71df50SFrank Blaschka { 3780384d2ef1SJulian Wiedmann struct qdio_buffer *buffer = buf->buffer; 3781384d2ef1SJulian Wiedmann int element = buf->next_element_to_fill; 3782cc309f83SJulian Wiedmann int length = skb_headlen(skb) - offset; 3783cc309f83SJulian Wiedmann char *data = skb->data + offset; 3784384d2ef1SJulian Wiedmann int length_here, cnt; 37854a71df50SFrank Blaschka 3786cc309f83SJulian Wiedmann /* map linear part into buffer element(s) */ 37874a71df50SFrank Blaschka while (length > 0) { 37884a71df50SFrank Blaschka /* length_here is the remaining amount of data in this page */ 37894a71df50SFrank Blaschka length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE); 37904a71df50SFrank Blaschka if (length < length_here) 37914a71df50SFrank Blaschka length_here = length; 37924a71df50SFrank Blaschka 37934a71df50SFrank Blaschka buffer->element[element].addr = data; 37944a71df50SFrank Blaschka buffer->element[element].length = length_here; 37954a71df50SFrank Blaschka length -= length_here; 3796384d2ef1SJulian Wiedmann if (is_first_elem) { 3797384d2ef1SJulian Wiedmann is_first_elem = false; 37985258830bSJulian Wiedmann if (length || skb_is_nonlinear(skb)) 37995258830bSJulian Wiedmann /* skb needs additional elements */ 38003ec90878SJan Glauber buffer->element[element].eflags = 38013ec90878SJan Glauber SBAL_EFLAGS_FIRST_FRAG; 380251aa165cSFrank Blaschka else 38033ec90878SJan Glauber buffer->element[element].eflags = 0; 38044a71df50SFrank Blaschka } else { 38053ec90878SJan Glauber buffer->element[element].eflags = 38063ec90878SJan Glauber SBAL_EFLAGS_MIDDLE_FRAG; 38074a71df50SFrank Blaschka } 38084a71df50SFrank Blaschka data += length_here; 38094a71df50SFrank Blaschka element++; 38104a71df50SFrank Blaschka } 381151aa165cSFrank Blaschka 3812cc309f83SJulian Wiedmann /* map page frags into buffer element(s) */ 381351aa165cSFrank Blaschka for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) { 3814f8eb4930SJulian Wiedmann skb_frag_t *frag = &skb_shinfo(skb)->frags[cnt]; 3815f8eb4930SJulian Wiedmann 3816f8eb4930SJulian Wiedmann data = skb_frag_address(frag); 3817f8eb4930SJulian Wiedmann length = skb_frag_size(frag); 3818271648b4SFrank Blaschka while (length > 0) { 3819271648b4SFrank Blaschka length_here = PAGE_SIZE - 3820271648b4SFrank Blaschka ((unsigned long) data % PAGE_SIZE); 3821271648b4SFrank Blaschka if (length < length_here) 3822271648b4SFrank Blaschka length_here = length; 3823271648b4SFrank Blaschka 3824271648b4SFrank Blaschka buffer->element[element].addr = data; 3825271648b4SFrank Blaschka buffer->element[element].length = length_here; 3826271648b4SFrank Blaschka buffer->element[element].eflags = 3827271648b4SFrank Blaschka SBAL_EFLAGS_MIDDLE_FRAG; 3828271648b4SFrank Blaschka length -= length_here; 3829271648b4SFrank Blaschka data += length_here; 383051aa165cSFrank Blaschka element++; 383151aa165cSFrank Blaschka } 3832271648b4SFrank Blaschka } 383351aa165cSFrank Blaschka 38343ec90878SJan Glauber if (buffer->element[element - 1].eflags) 38353ec90878SJan Glauber buffer->element[element - 1].eflags = SBAL_EFLAGS_LAST_FRAG; 3836384d2ef1SJulian Wiedmann buf->next_element_to_fill = element; 38374a71df50SFrank Blaschka } 38384a71df50SFrank Blaschka 3839eaf3cc08SJulian Wiedmann /** 3840eaf3cc08SJulian Wiedmann * qeth_fill_buffer() - map skb into an output buffer 3841eaf3cc08SJulian Wiedmann * @queue: QDIO queue to submit the buffer on 3842eaf3cc08SJulian Wiedmann * @buf: buffer to transport the skb 3843eaf3cc08SJulian Wiedmann * @skb: skb to map into the buffer 3844eaf3cc08SJulian Wiedmann * @hdr: qeth_hdr for this skb. Either at skb->data, or allocated 3845eaf3cc08SJulian Wiedmann * from qeth_core_header_cache. 3846eaf3cc08SJulian Wiedmann * @offset: when mapping the skb, start at skb->data + offset 3847eaf3cc08SJulian Wiedmann * @hd_len: if > 0, build a dedicated header element of this size 3848eaf3cc08SJulian Wiedmann */ 3849cef6ff22SJulian Wiedmann static int qeth_fill_buffer(struct qeth_qdio_out_q *queue, 3850cc309f83SJulian Wiedmann struct qeth_qdio_out_buffer *buf, 3851cc309f83SJulian Wiedmann struct sk_buff *skb, struct qeth_hdr *hdr, 385213ddacb5SJulian Wiedmann unsigned int offset, unsigned int hd_len) 38534a71df50SFrank Blaschka { 3854eaf3cc08SJulian Wiedmann struct qdio_buffer *buffer = buf->buffer; 3855384d2ef1SJulian Wiedmann bool is_first_elem = true; 38564a71df50SFrank Blaschka 3857dc149e37SJulian Wiedmann __skb_queue_tail(&buf->skb_list, skb); 38584a71df50SFrank Blaschka 3859eaf3cc08SJulian Wiedmann /* build dedicated header element */ 3860eaf3cc08SJulian Wiedmann if (hd_len) { 3861683d718aSFrank Blaschka int element = buf->next_element_to_fill; 3862384d2ef1SJulian Wiedmann is_first_elem = false; 3863384d2ef1SJulian Wiedmann 3864683d718aSFrank Blaschka buffer->element[element].addr = hdr; 3865f1588177SJulian Wiedmann buffer->element[element].length = hd_len; 38663ec90878SJan Glauber buffer->element[element].eflags = SBAL_EFLAGS_FIRST_FRAG; 3867eaf3cc08SJulian Wiedmann /* remember to free cache-allocated qeth_hdr: */ 3868eaf3cc08SJulian Wiedmann buf->is_header[element] = ((void *)hdr != skb->data); 3869683d718aSFrank Blaschka buf->next_element_to_fill++; 3870683d718aSFrank Blaschka } 3871683d718aSFrank Blaschka 3872384d2ef1SJulian Wiedmann __qeth_fill_buffer(skb, buf, is_first_elem, offset); 38734a71df50SFrank Blaschka 38744a71df50SFrank Blaschka if (!queue->do_pack) { 3875847a50fdSCarsten Otte QETH_CARD_TEXT(queue->card, 6, "fillbfnp"); 38764a71df50SFrank Blaschka } else { 3877847a50fdSCarsten Otte QETH_CARD_TEXT(queue->card, 6, "fillbfpa"); 3878f72b4644SJulian Wiedmann 3879b0abc4f5SJulian Wiedmann QETH_TXQ_STAT_INC(queue, skbs_pack); 3880f72b4644SJulian Wiedmann /* If the buffer still has free elements, keep using it. */ 3881f72b4644SJulian Wiedmann if (buf->next_element_to_fill < 3882f72b4644SJulian Wiedmann QETH_MAX_BUFFER_ELEMENTS(queue->card)) 3883f72b4644SJulian Wiedmann return 0; 3884f72b4644SJulian Wiedmann } 3885f72b4644SJulian Wiedmann 3886f72b4644SJulian Wiedmann /* flush out the buffer */ 38874a71df50SFrank Blaschka atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); 3888f72b4644SJulian Wiedmann queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) % 3889f72b4644SJulian Wiedmann QDIO_MAX_BUFFERS_PER_Q; 3890f72b4644SJulian Wiedmann return 1; 38914a71df50SFrank Blaschka } 38924a71df50SFrank Blaschka 389381ec5439SJulian Wiedmann static int qeth_do_send_packet_fast(struct qeth_qdio_out_q *queue, 389481ec5439SJulian Wiedmann struct sk_buff *skb, struct qeth_hdr *hdr, 389581ec5439SJulian Wiedmann unsigned int offset, unsigned int hd_len) 38964a71df50SFrank Blaschka { 38977c2e9ba3SJulian Wiedmann int index = queue->next_buf_to_fill; 38987c2e9ba3SJulian Wiedmann struct qeth_qdio_out_buffer *buffer = queue->bufs[index]; 38994a71df50SFrank Blaschka 39004a71df50SFrank Blaschka /* 39014a71df50SFrank Blaschka * check if buffer is empty to make sure that we do not 'overtake' 39024a71df50SFrank Blaschka * ourselves and try to fill a buffer that is already primed 39034a71df50SFrank Blaschka */ 39044a71df50SFrank Blaschka if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) 39057c2e9ba3SJulian Wiedmann return -EBUSY; 3906683d718aSFrank Blaschka qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len); 3907779e6e1cSJan Glauber qeth_flush_buffers(queue, index, 1); 39084a71df50SFrank Blaschka return 0; 39094a71df50SFrank Blaschka } 39104a71df50SFrank Blaschka 39114a71df50SFrank Blaschka int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, 39124a71df50SFrank Blaschka struct sk_buff *skb, struct qeth_hdr *hdr, 39139c3bfda9SJulian Wiedmann unsigned int offset, unsigned int hd_len, 39149c3bfda9SJulian Wiedmann int elements_needed) 39154a71df50SFrank Blaschka { 39164a71df50SFrank Blaschka struct qeth_qdio_out_buffer *buffer; 39174a71df50SFrank Blaschka int start_index; 39184a71df50SFrank Blaschka int flush_count = 0; 39194a71df50SFrank Blaschka int do_pack = 0; 39204a71df50SFrank Blaschka int tmp; 39214a71df50SFrank Blaschka int rc = 0; 39224a71df50SFrank Blaschka 39234a71df50SFrank Blaschka /* spin until we get the queue ... */ 39244a71df50SFrank Blaschka while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED, 39254a71df50SFrank Blaschka QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED); 39264a71df50SFrank Blaschka start_index = queue->next_buf_to_fill; 39270da9581dSEinar Lueck buffer = queue->bufs[queue->next_buf_to_fill]; 39284a71df50SFrank Blaschka /* 39294a71df50SFrank Blaschka * check if buffer is empty to make sure that we do not 'overtake' 39304a71df50SFrank Blaschka * ourselves and try to fill a buffer that is already primed 39314a71df50SFrank Blaschka */ 39324a71df50SFrank Blaschka if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) { 39334a71df50SFrank Blaschka atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); 39344a71df50SFrank Blaschka return -EBUSY; 39354a71df50SFrank Blaschka } 39364a71df50SFrank Blaschka /* check if we need to switch packing state of this queue */ 39374a71df50SFrank Blaschka qeth_switch_to_packing_if_needed(queue); 39384a71df50SFrank Blaschka if (queue->do_pack) { 39394a71df50SFrank Blaschka do_pack = 1; 39404a71df50SFrank Blaschka /* does packet fit in current buffer? */ 39414a71df50SFrank Blaschka if ((QETH_MAX_BUFFER_ELEMENTS(card) - 39424a71df50SFrank Blaschka buffer->next_element_to_fill) < elements_needed) { 39434a71df50SFrank Blaschka /* ... no -> set state PRIMED */ 394464ef8957SFrank Blaschka atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); 39454a71df50SFrank Blaschka flush_count++; 39464a71df50SFrank Blaschka queue->next_buf_to_fill = 39474a71df50SFrank Blaschka (queue->next_buf_to_fill + 1) % 39484a71df50SFrank Blaschka QDIO_MAX_BUFFERS_PER_Q; 39490da9581dSEinar Lueck buffer = queue->bufs[queue->next_buf_to_fill]; 39504a71df50SFrank Blaschka /* we did a step forward, so check buffer state 39514a71df50SFrank Blaschka * again */ 39524a71df50SFrank Blaschka if (atomic_read(&buffer->state) != 39534a71df50SFrank Blaschka QETH_QDIO_BUF_EMPTY) { 3954779e6e1cSJan Glauber qeth_flush_buffers(queue, start_index, 3955779e6e1cSJan Glauber flush_count); 39564a71df50SFrank Blaschka atomic_set(&queue->state, 39574a71df50SFrank Blaschka QETH_OUT_Q_UNLOCKED); 39583cdc8a25SJulian Wiedmann rc = -EBUSY; 39593cdc8a25SJulian Wiedmann goto out; 39604a71df50SFrank Blaschka } 39614a71df50SFrank Blaschka } 39624a71df50SFrank Blaschka } 3963f72b4644SJulian Wiedmann 3964f72b4644SJulian Wiedmann flush_count += qeth_fill_buffer(queue, buffer, skb, hdr, offset, 3965f72b4644SJulian Wiedmann hd_len); 39664a71df50SFrank Blaschka if (flush_count) 3967779e6e1cSJan Glauber qeth_flush_buffers(queue, start_index, flush_count); 39684a71df50SFrank Blaschka else if (!atomic_read(&queue->set_pci_flags_count)) 39694a71df50SFrank Blaschka atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH); 39704a71df50SFrank Blaschka /* 39714a71df50SFrank Blaschka * queue->state will go from LOCKED -> UNLOCKED or from 39724a71df50SFrank Blaschka * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us 39734a71df50SFrank Blaschka * (switch packing state or flush buffer to get another pci flag out). 39744a71df50SFrank Blaschka * In that case we will enter this loop 39754a71df50SFrank Blaschka */ 39764a71df50SFrank Blaschka while (atomic_dec_return(&queue->state)) { 39774a71df50SFrank Blaschka start_index = queue->next_buf_to_fill; 39784a71df50SFrank Blaschka /* check if we can go back to non-packing state */ 39793cdc8a25SJulian Wiedmann tmp = qeth_switch_to_nonpacking_if_needed(queue); 39804a71df50SFrank Blaschka /* 39814a71df50SFrank Blaschka * check if we need to flush a packing buffer to get a pci 39824a71df50SFrank Blaschka * flag out on the queue 39834a71df50SFrank Blaschka */ 39843cdc8a25SJulian Wiedmann if (!tmp && !atomic_read(&queue->set_pci_flags_count)) 39853cdc8a25SJulian Wiedmann tmp = qeth_prep_flush_pack_buffer(queue); 39863cdc8a25SJulian Wiedmann if (tmp) { 39873cdc8a25SJulian Wiedmann qeth_flush_buffers(queue, start_index, tmp); 39883cdc8a25SJulian Wiedmann flush_count += tmp; 39894a71df50SFrank Blaschka } 39903cdc8a25SJulian Wiedmann } 39913cdc8a25SJulian Wiedmann out: 39924a71df50SFrank Blaschka /* at this point the queue is UNLOCKED again */ 3993b0abc4f5SJulian Wiedmann if (do_pack) 3994b0abc4f5SJulian Wiedmann QETH_TXQ_STAT_ADD(queue, bufs_pack, flush_count); 39954a71df50SFrank Blaschka 39964a71df50SFrank Blaschka return rc; 39974a71df50SFrank Blaschka } 39984a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_do_send_packet); 39994a71df50SFrank Blaschka 400081ec5439SJulian Wiedmann static void qeth_fill_tso_ext(struct qeth_hdr_tso *hdr, 400181ec5439SJulian Wiedmann unsigned int payload_len, struct sk_buff *skb, 400281ec5439SJulian Wiedmann unsigned int proto_len) 400382bf5c08SJulian Wiedmann { 400482bf5c08SJulian Wiedmann struct qeth_hdr_ext_tso *ext = &hdr->ext; 400582bf5c08SJulian Wiedmann 400682bf5c08SJulian Wiedmann ext->hdr_tot_len = sizeof(*ext); 400782bf5c08SJulian Wiedmann ext->imb_hdr_no = 1; 400882bf5c08SJulian Wiedmann ext->hdr_type = 1; 400982bf5c08SJulian Wiedmann ext->hdr_version = 1; 401082bf5c08SJulian Wiedmann ext->hdr_len = 28; 401182bf5c08SJulian Wiedmann ext->payload_len = payload_len; 401282bf5c08SJulian Wiedmann ext->mss = skb_shinfo(skb)->gso_size; 401382bf5c08SJulian Wiedmann ext->dg_hdr_len = proto_len; 401482bf5c08SJulian Wiedmann } 401582bf5c08SJulian Wiedmann 4016fc69660bSJulian Wiedmann int qeth_xmit(struct qeth_card *card, struct sk_buff *skb, 4017fc69660bSJulian Wiedmann struct qeth_qdio_out_q *queue, int ipv, int cast_type, 4018b0abc4f5SJulian Wiedmann void (*fill_header)(struct qeth_qdio_out_q *queue, 4019b0abc4f5SJulian Wiedmann struct qeth_hdr *hdr, struct sk_buff *skb, 4020b0abc4f5SJulian Wiedmann int ipv, int cast_type, 4021fc69660bSJulian Wiedmann unsigned int data_len)) 4022fc69660bSJulian Wiedmann { 402382bf5c08SJulian Wiedmann unsigned int proto_len, hw_hdr_len; 4024fc69660bSJulian Wiedmann unsigned int frame_len = skb->len; 402582bf5c08SJulian Wiedmann bool is_tso = skb_is_gso(skb); 4026fc69660bSJulian Wiedmann unsigned int data_offset = 0; 4027fc69660bSJulian Wiedmann struct qeth_hdr *hdr = NULL; 4028fc69660bSJulian Wiedmann unsigned int hd_len = 0; 4029fc69660bSJulian Wiedmann unsigned int elements; 4030fc69660bSJulian Wiedmann int push_len, rc; 4031fc69660bSJulian Wiedmann bool is_sg; 4032fc69660bSJulian Wiedmann 403382bf5c08SJulian Wiedmann if (is_tso) { 403482bf5c08SJulian Wiedmann hw_hdr_len = sizeof(struct qeth_hdr_tso); 403582bf5c08SJulian Wiedmann proto_len = skb_transport_offset(skb) + tcp_hdrlen(skb); 403682bf5c08SJulian Wiedmann } else { 403782bf5c08SJulian Wiedmann hw_hdr_len = sizeof(struct qeth_hdr); 403881ec5439SJulian Wiedmann proto_len = (IS_IQD(card) && IS_LAYER2(card)) ? ETH_HLEN : 0; 403982bf5c08SJulian Wiedmann } 404082bf5c08SJulian Wiedmann 4041fc69660bSJulian Wiedmann rc = skb_cow_head(skb, hw_hdr_len); 4042fc69660bSJulian Wiedmann if (rc) 4043fc69660bSJulian Wiedmann return rc; 4044fc69660bSJulian Wiedmann 4045b0abc4f5SJulian Wiedmann push_len = qeth_add_hw_header(queue, skb, &hdr, hw_hdr_len, proto_len, 4046fc69660bSJulian Wiedmann &elements); 4047fc69660bSJulian Wiedmann if (push_len < 0) 4048fc69660bSJulian Wiedmann return push_len; 404982bf5c08SJulian Wiedmann if (is_tso || !push_len) { 4050fc69660bSJulian Wiedmann /* HW header needs its own buffer element. */ 4051fc69660bSJulian Wiedmann hd_len = hw_hdr_len + proto_len; 405282bf5c08SJulian Wiedmann data_offset = push_len + proto_len; 4053fc69660bSJulian Wiedmann } 4054e517b649SJulian Wiedmann memset(hdr, 0, hw_hdr_len); 4055b0abc4f5SJulian Wiedmann fill_header(queue, hdr, skb, ipv, cast_type, frame_len); 405682bf5c08SJulian Wiedmann if (is_tso) 405782bf5c08SJulian Wiedmann qeth_fill_tso_ext((struct qeth_hdr_tso *) hdr, 405882bf5c08SJulian Wiedmann frame_len - proto_len, skb, proto_len); 4059fc69660bSJulian Wiedmann 4060fc69660bSJulian Wiedmann is_sg = skb_is_nonlinear(skb); 4061fc69660bSJulian Wiedmann if (IS_IQD(card)) { 4062fc69660bSJulian Wiedmann rc = qeth_do_send_packet_fast(queue, skb, hdr, data_offset, 4063fc69660bSJulian Wiedmann hd_len); 4064fc69660bSJulian Wiedmann } else { 4065fc69660bSJulian Wiedmann /* TODO: drop skb_orphan() once TX completion is fast enough */ 4066fc69660bSJulian Wiedmann skb_orphan(skb); 4067fc69660bSJulian Wiedmann rc = qeth_do_send_packet(card, queue, skb, hdr, data_offset, 4068fc69660bSJulian Wiedmann hd_len, elements); 4069fc69660bSJulian Wiedmann } 4070fc69660bSJulian Wiedmann 4071fc69660bSJulian Wiedmann if (!rc) { 4072b0abc4f5SJulian Wiedmann QETH_TXQ_STAT_ADD(queue, buf_elements, elements); 4073fc69660bSJulian Wiedmann if (is_sg) 4074b0abc4f5SJulian Wiedmann QETH_TXQ_STAT_INC(queue, skbs_sg); 407582bf5c08SJulian Wiedmann if (is_tso) { 4076b0abc4f5SJulian Wiedmann QETH_TXQ_STAT_INC(queue, skbs_tso); 4077b0abc4f5SJulian Wiedmann QETH_TXQ_STAT_ADD(queue, tso_bytes, frame_len); 4078fc69660bSJulian Wiedmann } 4079fc69660bSJulian Wiedmann } else { 4080fc69660bSJulian Wiedmann if (!push_len) 4081fc69660bSJulian Wiedmann kmem_cache_free(qeth_core_header_cache, hdr); 4082fc69660bSJulian Wiedmann if (rc == -EBUSY) 4083fc69660bSJulian Wiedmann /* roll back to ETH header */ 4084fc69660bSJulian Wiedmann skb_pull(skb, push_len); 4085fc69660bSJulian Wiedmann } 4086fc69660bSJulian Wiedmann return rc; 4087fc69660bSJulian Wiedmann } 4088fc69660bSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_xmit); 4089fc69660bSJulian Wiedmann 40904a71df50SFrank Blaschka static int qeth_setadp_promisc_mode_cb(struct qeth_card *card, 40914a71df50SFrank Blaschka struct qeth_reply *reply, unsigned long data) 40924a71df50SFrank Blaschka { 4093686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 40944a71df50SFrank Blaschka struct qeth_ipacmd_setadpparms *setparms; 40954a71df50SFrank Blaschka 4096847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "prmadpcb"); 40974a71df50SFrank Blaschka 40984a71df50SFrank Blaschka setparms = &(cmd->data.setadapterparms); 4099686c97eeSJulian Wiedmann if (qeth_setadpparms_inspect_rc(cmd)) { 41008a593148SThomas Richter QETH_CARD_TEXT_(card, 4, "prmrc%x", cmd->hdr.return_code); 41014a71df50SFrank Blaschka setparms->data.mode = SET_PROMISC_MODE_OFF; 41024a71df50SFrank Blaschka } 41034a71df50SFrank Blaschka card->info.promisc_mode = setparms->data.mode; 4104742d4d40SJulian Wiedmann return (cmd->hdr.return_code) ? -EIO : 0; 41054a71df50SFrank Blaschka } 41064a71df50SFrank Blaschka 41074a71df50SFrank Blaschka void qeth_setadp_promisc_mode(struct qeth_card *card) 41084a71df50SFrank Blaschka { 41094a71df50SFrank Blaschka enum qeth_ipa_promisc_modes mode; 41104a71df50SFrank Blaschka struct net_device *dev = card->dev; 41114a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 41124a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 41134a71df50SFrank Blaschka 4114847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "setprom"); 41154a71df50SFrank Blaschka 41164a71df50SFrank Blaschka if (((dev->flags & IFF_PROMISC) && 41174a71df50SFrank Blaschka (card->info.promisc_mode == SET_PROMISC_MODE_ON)) || 41184a71df50SFrank Blaschka (!(dev->flags & IFF_PROMISC) && 41194a71df50SFrank Blaschka (card->info.promisc_mode == SET_PROMISC_MODE_OFF))) 41204a71df50SFrank Blaschka return; 41214a71df50SFrank Blaschka mode = SET_PROMISC_MODE_OFF; 41224a71df50SFrank Blaschka if (dev->flags & IFF_PROMISC) 41234a71df50SFrank Blaschka mode = SET_PROMISC_MODE_ON; 4124847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 4, "mode:%x", mode); 41254a71df50SFrank Blaschka 41264a71df50SFrank Blaschka iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE, 4127ca5b20acSStefan Raspl sizeof(struct qeth_ipacmd_setadpparms_hdr) + 8); 41281aec42bcSThomas Richter if (!iob) 41291aec42bcSThomas Richter return; 4130ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 41314a71df50SFrank Blaschka cmd->data.setadapterparms.data.mode = mode; 41324a71df50SFrank Blaschka qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL); 41334a71df50SFrank Blaschka } 41344a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode); 41354a71df50SFrank Blaschka 41364a71df50SFrank Blaschka static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card, 41374a71df50SFrank Blaschka struct qeth_reply *reply, unsigned long data) 41384a71df50SFrank Blaschka { 4139686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 4140b144b99fSJulian Wiedmann struct qeth_ipacmd_setadpparms *adp_cmd; 41414a71df50SFrank Blaschka 4142847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "chgmaccb"); 4143686c97eeSJulian Wiedmann if (qeth_setadpparms_inspect_rc(cmd)) 41444b7ae122SJulian Wiedmann return -EIO; 41454a71df50SFrank Blaschka 4146b144b99fSJulian Wiedmann adp_cmd = &cmd->data.setadapterparms; 41474b7ae122SJulian Wiedmann if (!is_valid_ether_addr(adp_cmd->data.change_addr.addr)) 41484b7ae122SJulian Wiedmann return -EADDRNOTAVAIL; 41494b7ae122SJulian Wiedmann 4150b144b99fSJulian Wiedmann if (IS_LAYER2(card) && IS_OSD(card) && !IS_VM_NIC(card) && 4151b144b99fSJulian Wiedmann !(adp_cmd->hdr.flags & QETH_SETADP_FLAGS_VIRTUAL_MAC)) 41524b7ae122SJulian Wiedmann return -EADDRNOTAVAIL; 4153b144b99fSJulian Wiedmann 4154b144b99fSJulian Wiedmann ether_addr_copy(card->dev->dev_addr, adp_cmd->data.change_addr.addr); 41554a71df50SFrank Blaschka return 0; 41564a71df50SFrank Blaschka } 41574a71df50SFrank Blaschka 41584a71df50SFrank Blaschka int qeth_setadpparms_change_macaddr(struct qeth_card *card) 41594a71df50SFrank Blaschka { 41604a71df50SFrank Blaschka int rc; 41614a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 41624a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 41634a71df50SFrank Blaschka 4164847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "chgmac"); 41654a71df50SFrank Blaschka 41664a71df50SFrank Blaschka iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS, 4167ca5b20acSStefan Raspl sizeof(struct qeth_ipacmd_setadpparms_hdr) + 4168ca5b20acSStefan Raspl sizeof(struct qeth_change_addr)); 41691aec42bcSThomas Richter if (!iob) 41701aec42bcSThomas Richter return -ENOMEM; 4171ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 41724a71df50SFrank Blaschka cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC; 417399f0b85dSJulian Wiedmann cmd->data.setadapterparms.data.change_addr.addr_size = ETH_ALEN; 417499f0b85dSJulian Wiedmann ether_addr_copy(cmd->data.setadapterparms.data.change_addr.addr, 417599f0b85dSJulian Wiedmann card->dev->dev_addr); 41764a71df50SFrank Blaschka rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb, 41774a71df50SFrank Blaschka NULL); 41784a71df50SFrank Blaschka return rc; 41794a71df50SFrank Blaschka } 41804a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr); 41814a71df50SFrank Blaschka 4182d64ecc22SEinar Lueck static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card, 4183d64ecc22SEinar Lueck struct qeth_reply *reply, unsigned long data) 4184d64ecc22SEinar Lueck { 4185686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 4186d64ecc22SEinar Lueck struct qeth_set_access_ctrl *access_ctrl_req; 41870f54761dSStefan Raspl int fallback = *(int *)reply->param; 4188d64ecc22SEinar Lueck 4189847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "setaccb"); 4190686c97eeSJulian Wiedmann if (cmd->hdr.return_code) 4191742d4d40SJulian Wiedmann return -EIO; 4192686c97eeSJulian Wiedmann qeth_setadpparms_inspect_rc(cmd); 4193d64ecc22SEinar Lueck 4194d64ecc22SEinar Lueck access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl; 4195d64ecc22SEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "setaccb"); 4196d64ecc22SEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name); 4197d64ecc22SEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "rc=%d", 4198d64ecc22SEinar Lueck cmd->data.setadapterparms.hdr.return_code); 41990f54761dSStefan Raspl if (cmd->data.setadapterparms.hdr.return_code != 42000f54761dSStefan Raspl SET_ACCESS_CTRL_RC_SUCCESS) 4201e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%#x) on device %x: %#x\n", 4202e19e5be8SJulian Wiedmann access_ctrl_req->subcmd_code, CARD_DEVID(card), 42030f54761dSStefan Raspl cmd->data.setadapterparms.hdr.return_code); 4204d64ecc22SEinar Lueck switch (cmd->data.setadapterparms.hdr.return_code) { 4205d64ecc22SEinar Lueck case SET_ACCESS_CTRL_RC_SUCCESS: 4206d64ecc22SEinar Lueck if (card->options.isolation == ISOLATION_MODE_NONE) { 4207d64ecc22SEinar Lueck dev_info(&card->gdev->dev, 4208d64ecc22SEinar Lueck "QDIO data connection isolation is deactivated\n"); 4209d64ecc22SEinar Lueck } else { 4210d64ecc22SEinar Lueck dev_info(&card->gdev->dev, 4211d64ecc22SEinar Lueck "QDIO data connection isolation is activated\n"); 4212d64ecc22SEinar Lueck } 4213d64ecc22SEinar Lueck break; 42140f54761dSStefan Raspl case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED: 4215e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "QDIO data connection isolation on device %x already deactivated\n", 4216e19e5be8SJulian Wiedmann CARD_DEVID(card)); 42170f54761dSStefan Raspl if (fallback) 42180f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 42190f54761dSStefan Raspl break; 42200f54761dSStefan Raspl case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED: 4221e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "QDIO data connection isolation on device %x already activated\n", 4222e19e5be8SJulian Wiedmann CARD_DEVID(card)); 42230f54761dSStefan Raspl if (fallback) 42240f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 42250f54761dSStefan Raspl break; 4226d64ecc22SEinar Lueck case SET_ACCESS_CTRL_RC_NOT_SUPPORTED: 4227d64ecc22SEinar Lueck dev_err(&card->gdev->dev, "Adapter does not " 4228d64ecc22SEinar Lueck "support QDIO data connection isolation\n"); 4229d64ecc22SEinar Lueck break; 4230d64ecc22SEinar Lueck case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER: 4231d64ecc22SEinar Lueck dev_err(&card->gdev->dev, 4232d64ecc22SEinar Lueck "Adapter is dedicated. " 4233d64ecc22SEinar Lueck "QDIO data connection isolation not supported\n"); 42340f54761dSStefan Raspl if (fallback) 42350f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 4236d64ecc22SEinar Lueck break; 4237d64ecc22SEinar Lueck case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF: 4238d64ecc22SEinar Lueck dev_err(&card->gdev->dev, 4239d64ecc22SEinar Lueck "TSO does not permit QDIO data connection isolation\n"); 42400f54761dSStefan Raspl if (fallback) 42410f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 4242d64ecc22SEinar Lueck break; 42430f54761dSStefan Raspl case SET_ACCESS_CTRL_RC_REFLREL_UNSUPPORTED: 42440f54761dSStefan Raspl dev_err(&card->gdev->dev, "The adjacent switch port does not " 42450f54761dSStefan Raspl "support reflective relay mode\n"); 42460f54761dSStefan Raspl if (fallback) 42470f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 42480f54761dSStefan Raspl break; 42490f54761dSStefan Raspl case SET_ACCESS_CTRL_RC_REFLREL_FAILED: 42500f54761dSStefan Raspl dev_err(&card->gdev->dev, "The reflective relay mode cannot be " 42510f54761dSStefan Raspl "enabled at the adjacent switch port"); 42520f54761dSStefan Raspl if (fallback) 42530f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 42540f54761dSStefan Raspl break; 42550f54761dSStefan Raspl case SET_ACCESS_CTRL_RC_REFLREL_DEACT_FAILED: 42560f54761dSStefan Raspl dev_warn(&card->gdev->dev, "Turning off reflective relay mode " 42570f54761dSStefan Raspl "at the adjacent switch failed\n"); 42580f54761dSStefan Raspl break; 4259d64ecc22SEinar Lueck default: 4260d64ecc22SEinar Lueck /* this should never happen */ 42610f54761dSStefan Raspl if (fallback) 42620f54761dSStefan Raspl card->options.isolation = card->options.prev_isolation; 4263d64ecc22SEinar Lueck break; 4264d64ecc22SEinar Lueck } 4265742d4d40SJulian Wiedmann return (cmd->hdr.return_code) ? -EIO : 0; 4266d64ecc22SEinar Lueck } 4267d64ecc22SEinar Lueck 4268d64ecc22SEinar Lueck static int qeth_setadpparms_set_access_ctrl(struct qeth_card *card, 42690f54761dSStefan Raspl enum qeth_ipa_isolation_modes isolation, int fallback) 4270d64ecc22SEinar Lueck { 4271d64ecc22SEinar Lueck int rc; 4272d64ecc22SEinar Lueck struct qeth_cmd_buffer *iob; 4273d64ecc22SEinar Lueck struct qeth_ipa_cmd *cmd; 4274d64ecc22SEinar Lueck struct qeth_set_access_ctrl *access_ctrl_req; 4275d64ecc22SEinar Lueck 4276847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "setacctl"); 4277d64ecc22SEinar Lueck 4278d64ecc22SEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "setacctl"); 4279d64ecc22SEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name); 4280d64ecc22SEinar Lueck 4281d64ecc22SEinar Lueck iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_ACCESS_CONTROL, 4282d64ecc22SEinar Lueck sizeof(struct qeth_ipacmd_setadpparms_hdr) + 4283d64ecc22SEinar Lueck sizeof(struct qeth_set_access_ctrl)); 42841aec42bcSThomas Richter if (!iob) 42851aec42bcSThomas Richter return -ENOMEM; 4286ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 4287d64ecc22SEinar Lueck access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl; 4288d64ecc22SEinar Lueck access_ctrl_req->subcmd_code = isolation; 4289d64ecc22SEinar Lueck 4290d64ecc22SEinar Lueck rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_set_access_ctrl_cb, 42910f54761dSStefan Raspl &fallback); 4292d64ecc22SEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "rc=%d", rc); 4293d64ecc22SEinar Lueck return rc; 4294d64ecc22SEinar Lueck } 4295d64ecc22SEinar Lueck 42960f54761dSStefan Raspl int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback) 4297d64ecc22SEinar Lueck { 4298d64ecc22SEinar Lueck int rc = 0; 4299d64ecc22SEinar Lueck 4300847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "setactlo"); 4301d64ecc22SEinar Lueck 43025113fec0SUrsula Braun if ((card->info.type == QETH_CARD_TYPE_OSD || 43035113fec0SUrsula Braun card->info.type == QETH_CARD_TYPE_OSX) && 4304d64ecc22SEinar Lueck qeth_adp_supported(card, IPA_SETADP_SET_ACCESS_CONTROL)) { 4305d64ecc22SEinar Lueck rc = qeth_setadpparms_set_access_ctrl(card, 43060f54761dSStefan Raspl card->options.isolation, fallback); 4307d64ecc22SEinar Lueck if (rc) { 4308e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(3, "IPA(SET_ACCESS_CTRL(%d) on device %x: sent failed\n", 4309e19e5be8SJulian Wiedmann rc, CARD_DEVID(card)); 43100f54761dSStefan Raspl rc = -EOPNOTSUPP; 4311d64ecc22SEinar Lueck } 4312d64ecc22SEinar Lueck } else if (card->options.isolation != ISOLATION_MODE_NONE) { 4313d64ecc22SEinar Lueck card->options.isolation = ISOLATION_MODE_NONE; 4314d64ecc22SEinar Lueck 4315d64ecc22SEinar Lueck dev_err(&card->gdev->dev, "Adapter does not " 4316d64ecc22SEinar Lueck "support QDIO data connection isolation\n"); 4317d64ecc22SEinar Lueck rc = -EOPNOTSUPP; 4318d64ecc22SEinar Lueck } 4319d64ecc22SEinar Lueck return rc; 4320d64ecc22SEinar Lueck } 4321d64ecc22SEinar Lueck EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online); 4322d64ecc22SEinar Lueck 43234a71df50SFrank Blaschka void qeth_tx_timeout(struct net_device *dev) 43244a71df50SFrank Blaschka { 43254a71df50SFrank Blaschka struct qeth_card *card; 43264a71df50SFrank Blaschka 4327509e2562SHeiko Carstens card = dev->ml_priv; 4328847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "txtimeo"); 43294a71df50SFrank Blaschka qeth_schedule_recovery(card); 43304a71df50SFrank Blaschka } 43314a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_tx_timeout); 43324a71df50SFrank Blaschka 4333942d6984SJulian Wiedmann static int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum) 43344a71df50SFrank Blaschka { 4335509e2562SHeiko Carstens struct qeth_card *card = dev->ml_priv; 43364a71df50SFrank Blaschka int rc = 0; 43374a71df50SFrank Blaschka 43384a71df50SFrank Blaschka switch (regnum) { 43394a71df50SFrank Blaschka case MII_BMCR: /* Basic mode control register */ 43404a71df50SFrank Blaschka rc = BMCR_FULLDPLX; 43414a71df50SFrank Blaschka if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) && 43424a71df50SFrank Blaschka (card->info.link_type != QETH_LINK_TYPE_OSN) && 434354e049c2SJulian Wiedmann (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH) && 434454e049c2SJulian Wiedmann (card->info.link_type != QETH_LINK_TYPE_25GBIT_ETH)) 43454a71df50SFrank Blaschka rc |= BMCR_SPEED100; 43464a71df50SFrank Blaschka break; 43474a71df50SFrank Blaschka case MII_BMSR: /* Basic mode status register */ 43484a71df50SFrank Blaschka rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS | 43494a71df50SFrank Blaschka BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL | 43504a71df50SFrank Blaschka BMSR_100BASE4; 43514a71df50SFrank Blaschka break; 43524a71df50SFrank Blaschka case MII_PHYSID1: /* PHYS ID 1 */ 43534a71df50SFrank Blaschka rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) | 43544a71df50SFrank Blaschka dev->dev_addr[2]; 43554a71df50SFrank Blaschka rc = (rc >> 5) & 0xFFFF; 43564a71df50SFrank Blaschka break; 43574a71df50SFrank Blaschka case MII_PHYSID2: /* PHYS ID 2 */ 43584a71df50SFrank Blaschka rc = (dev->dev_addr[2] << 10) & 0xFFFF; 43594a71df50SFrank Blaschka break; 43604a71df50SFrank Blaschka case MII_ADVERTISE: /* Advertisement control reg */ 43614a71df50SFrank Blaschka rc = ADVERTISE_ALL; 43624a71df50SFrank Blaschka break; 43634a71df50SFrank Blaschka case MII_LPA: /* Link partner ability reg */ 43644a71df50SFrank Blaschka rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL | 43654a71df50SFrank Blaschka LPA_100BASE4 | LPA_LPACK; 43664a71df50SFrank Blaschka break; 43674a71df50SFrank Blaschka case MII_EXPANSION: /* Expansion register */ 43684a71df50SFrank Blaschka break; 43694a71df50SFrank Blaschka case MII_DCOUNTER: /* disconnect counter */ 43704a71df50SFrank Blaschka break; 43714a71df50SFrank Blaschka case MII_FCSCOUNTER: /* false carrier counter */ 43724a71df50SFrank Blaschka break; 43734a71df50SFrank Blaschka case MII_NWAYTEST: /* N-way auto-neg test register */ 43744a71df50SFrank Blaschka break; 43754a71df50SFrank Blaschka case MII_RERRCOUNTER: /* rx error counter */ 43764a71df50SFrank Blaschka rc = card->stats.rx_errors; 43774a71df50SFrank Blaschka break; 43784a71df50SFrank Blaschka case MII_SREVISION: /* silicon revision */ 43794a71df50SFrank Blaschka break; 43804a71df50SFrank Blaschka case MII_RESV1: /* reserved 1 */ 43814a71df50SFrank Blaschka break; 43824a71df50SFrank Blaschka case MII_LBRERROR: /* loopback, rx, bypass error */ 43834a71df50SFrank Blaschka break; 43844a71df50SFrank Blaschka case MII_PHYADDR: /* physical address */ 43854a71df50SFrank Blaschka break; 43864a71df50SFrank Blaschka case MII_RESV2: /* reserved 2 */ 43874a71df50SFrank Blaschka break; 43884a71df50SFrank Blaschka case MII_TPISTATUS: /* TPI status for 10mbps */ 43894a71df50SFrank Blaschka break; 43904a71df50SFrank Blaschka case MII_NCONFIG: /* network interface config */ 43914a71df50SFrank Blaschka break; 43924a71df50SFrank Blaschka default: 43934a71df50SFrank Blaschka break; 43944a71df50SFrank Blaschka } 43954a71df50SFrank Blaschka return rc; 43964a71df50SFrank Blaschka } 43974a71df50SFrank Blaschka 43984a71df50SFrank Blaschka static int qeth_snmp_command_cb(struct qeth_card *card, 43994a71df50SFrank Blaschka struct qeth_reply *reply, unsigned long sdata) 44004a71df50SFrank Blaschka { 44014a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 44024a71df50SFrank Blaschka struct qeth_arp_query_info *qinfo; 44034a71df50SFrank Blaschka unsigned char *data; 44049a764c1eSJulian Wiedmann void *snmp_data; 44054a71df50SFrank Blaschka __u16 data_len; 44064a71df50SFrank Blaschka 4407847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "snpcmdcb"); 44084a71df50SFrank Blaschka 44094a71df50SFrank Blaschka cmd = (struct qeth_ipa_cmd *) sdata; 44104a71df50SFrank Blaschka data = (unsigned char *)((char *)cmd - reply->offset); 44114a71df50SFrank Blaschka qinfo = (struct qeth_arp_query_info *) reply->param; 44124a71df50SFrank Blaschka 44134a71df50SFrank Blaschka if (cmd->hdr.return_code) { 44148a593148SThomas Richter QETH_CARD_TEXT_(card, 4, "scer1%x", cmd->hdr.return_code); 44154b7ae122SJulian Wiedmann return -EIO; 44164a71df50SFrank Blaschka } 44174a71df50SFrank Blaschka if (cmd->data.setadapterparms.hdr.return_code) { 44184a71df50SFrank Blaschka cmd->hdr.return_code = 44194a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.return_code; 44208a593148SThomas Richter QETH_CARD_TEXT_(card, 4, "scer2%x", cmd->hdr.return_code); 44214b7ae122SJulian Wiedmann return -EIO; 44224a71df50SFrank Blaschka } 44234a71df50SFrank Blaschka data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data)); 44249a764c1eSJulian Wiedmann if (cmd->data.setadapterparms.hdr.seq_no == 1) { 44259a764c1eSJulian Wiedmann snmp_data = &cmd->data.setadapterparms.data.snmp; 44269a764c1eSJulian Wiedmann data_len -= offsetof(struct qeth_ipa_cmd, 44279a764c1eSJulian Wiedmann data.setadapterparms.data.snmp); 44289a764c1eSJulian Wiedmann } else { 44299a764c1eSJulian Wiedmann snmp_data = &cmd->data.setadapterparms.data.snmp.request; 44309a764c1eSJulian Wiedmann data_len -= offsetof(struct qeth_ipa_cmd, 44319a764c1eSJulian Wiedmann data.setadapterparms.data.snmp.request); 44329a764c1eSJulian Wiedmann } 44334a71df50SFrank Blaschka 44344a71df50SFrank Blaschka /* check if there is enough room in userspace */ 44354a71df50SFrank Blaschka if ((qinfo->udata_len - qinfo->udata_offset) < data_len) { 44364b7ae122SJulian Wiedmann QETH_CARD_TEXT_(card, 4, "scer3%i", -ENOSPC); 44374b7ae122SJulian Wiedmann return -ENOSPC; 44384a71df50SFrank Blaschka } 4439847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 4, "snore%i", 44404a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.used_total); 4441847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 4, "sseqn%i", 44424a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.seq_no); 44434a71df50SFrank Blaschka /*copy entries to user buffer*/ 44449a764c1eSJulian Wiedmann memcpy(qinfo->udata + qinfo->udata_offset, snmp_data, data_len); 44454a71df50SFrank Blaschka qinfo->udata_offset += data_len; 44469a764c1eSJulian Wiedmann 44474a71df50SFrank Blaschka /* check if all replies received ... */ 4448847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 4, "srtot%i", 44494a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.used_total); 4450847a50fdSCarsten Otte QETH_CARD_TEXT_(card, 4, "srseq%i", 44514a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.seq_no); 44524a71df50SFrank Blaschka if (cmd->data.setadapterparms.hdr.seq_no < 44534a71df50SFrank Blaschka cmd->data.setadapterparms.hdr.used_total) 44544a71df50SFrank Blaschka return 1; 44554a71df50SFrank Blaschka return 0; 44564a71df50SFrank Blaschka } 44574a71df50SFrank Blaschka 4458942d6984SJulian Wiedmann static int qeth_snmp_command(struct qeth_card *card, char __user *udata) 44594a71df50SFrank Blaschka { 44604a71df50SFrank Blaschka struct qeth_cmd_buffer *iob; 44614a71df50SFrank Blaschka struct qeth_ipa_cmd *cmd; 44624a71df50SFrank Blaschka struct qeth_snmp_ureq *ureq; 44636fb392b1SUrsula Braun unsigned int req_len; 44644a71df50SFrank Blaschka struct qeth_arp_query_info qinfo = {0, }; 44654a71df50SFrank Blaschka int rc = 0; 44664a71df50SFrank Blaschka 4467847a50fdSCarsten Otte QETH_CARD_TEXT(card, 3, "snmpcmd"); 44684a71df50SFrank Blaschka 44694a71df50SFrank Blaschka if (card->info.guestlan) 44704a71df50SFrank Blaschka return -EOPNOTSUPP; 44714a71df50SFrank Blaschka 44724a71df50SFrank Blaschka if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) && 44734fda3354SJulian Wiedmann IS_LAYER3(card)) 44744a71df50SFrank Blaschka return -EOPNOTSUPP; 44754fda3354SJulian Wiedmann 44764a71df50SFrank Blaschka /* skip 4 bytes (data_len struct member) to get req_len */ 44774a71df50SFrank Blaschka if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int))) 44784a71df50SFrank Blaschka return -EFAULT; 44796fb392b1SUrsula Braun if (req_len > (QETH_BUFSIZE - IPA_PDU_HEADER_SIZE - 44806fb392b1SUrsula Braun sizeof(struct qeth_ipacmd_hdr) - 44816fb392b1SUrsula Braun sizeof(struct qeth_ipacmd_setadpparms_hdr))) 44826fb392b1SUrsula Braun return -EINVAL; 44834986f3f0SJulia Lawall ureq = memdup_user(udata, req_len + sizeof(struct qeth_snmp_ureq_hdr)); 44844986f3f0SJulia Lawall if (IS_ERR(ureq)) { 4485847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "snmpnome"); 44864986f3f0SJulia Lawall return PTR_ERR(ureq); 44874a71df50SFrank Blaschka } 44884a71df50SFrank Blaschka qinfo.udata_len = ureq->hdr.data_len; 44894a71df50SFrank Blaschka qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL); 44904a71df50SFrank Blaschka if (!qinfo.udata) { 44914a71df50SFrank Blaschka kfree(ureq); 44924a71df50SFrank Blaschka return -ENOMEM; 44934a71df50SFrank Blaschka } 44944a71df50SFrank Blaschka qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr); 44954a71df50SFrank Blaschka 44964a71df50SFrank Blaschka iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL, 44974a71df50SFrank Blaschka QETH_SNMP_SETADP_CMDLENGTH + req_len); 44981aec42bcSThomas Richter if (!iob) { 44991aec42bcSThomas Richter rc = -ENOMEM; 45001aec42bcSThomas Richter goto out; 45011aec42bcSThomas Richter } 4502c2153277SJulian Wiedmann 4503c2153277SJulian Wiedmann /* for large requests, fix-up the length fields: */ 4504c2153277SJulian Wiedmann qeth_prepare_ipa_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len); 4505c2153277SJulian Wiedmann 4506ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 45074a71df50SFrank Blaschka memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len); 4508c2153277SJulian Wiedmann rc = qeth_send_ipa_cmd(card, iob, qeth_snmp_command_cb, &qinfo); 45094a71df50SFrank Blaschka if (rc) 4510e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "SNMP command failed on device %x: (%#x)\n", 4511e19e5be8SJulian Wiedmann CARD_DEVID(card), rc); 45124a71df50SFrank Blaschka else { 45134a71df50SFrank Blaschka if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) 45144a71df50SFrank Blaschka rc = -EFAULT; 45154a71df50SFrank Blaschka } 45161aec42bcSThomas Richter out: 45174a71df50SFrank Blaschka kfree(ureq); 45184a71df50SFrank Blaschka kfree(qinfo.udata); 45194a71df50SFrank Blaschka return rc; 45204a71df50SFrank Blaschka } 45214a71df50SFrank Blaschka 4522c3ab96f3SFrank Blaschka static int qeth_setadpparms_query_oat_cb(struct qeth_card *card, 4523c3ab96f3SFrank Blaschka struct qeth_reply *reply, unsigned long data) 4524c3ab96f3SFrank Blaschka { 4525686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data; 4526c3ab96f3SFrank Blaschka struct qeth_qoat_priv *priv; 4527c3ab96f3SFrank Blaschka char *resdata; 4528c3ab96f3SFrank Blaschka int resdatalen; 4529c3ab96f3SFrank Blaschka 4530c3ab96f3SFrank Blaschka QETH_CARD_TEXT(card, 3, "qoatcb"); 4531686c97eeSJulian Wiedmann if (qeth_setadpparms_inspect_rc(cmd)) 45324b7ae122SJulian Wiedmann return -EIO; 4533c3ab96f3SFrank Blaschka 4534c3ab96f3SFrank Blaschka priv = (struct qeth_qoat_priv *)reply->param; 4535c3ab96f3SFrank Blaschka resdatalen = cmd->data.setadapterparms.hdr.cmdlength; 4536c3ab96f3SFrank Blaschka resdata = (char *)data + 28; 4537c3ab96f3SFrank Blaschka 45384b7ae122SJulian Wiedmann if (resdatalen > (priv->buffer_len - priv->response_len)) 45394b7ae122SJulian Wiedmann return -ENOSPC; 4540c3ab96f3SFrank Blaschka 4541c3ab96f3SFrank Blaschka memcpy((priv->buffer + priv->response_len), resdata, 4542c3ab96f3SFrank Blaschka resdatalen); 4543c3ab96f3SFrank Blaschka priv->response_len += resdatalen; 4544c3ab96f3SFrank Blaschka 4545c3ab96f3SFrank Blaschka if (cmd->data.setadapterparms.hdr.seq_no < 4546c3ab96f3SFrank Blaschka cmd->data.setadapterparms.hdr.used_total) 4547c3ab96f3SFrank Blaschka return 1; 4548c3ab96f3SFrank Blaschka return 0; 4549c3ab96f3SFrank Blaschka } 4550c3ab96f3SFrank Blaschka 4551942d6984SJulian Wiedmann static int qeth_query_oat_command(struct qeth_card *card, char __user *udata) 4552c3ab96f3SFrank Blaschka { 4553c3ab96f3SFrank Blaschka int rc = 0; 4554c3ab96f3SFrank Blaschka struct qeth_cmd_buffer *iob; 4555c3ab96f3SFrank Blaschka struct qeth_ipa_cmd *cmd; 4556c3ab96f3SFrank Blaschka struct qeth_query_oat *oat_req; 4557c3ab96f3SFrank Blaschka struct qeth_query_oat_data oat_data; 4558c3ab96f3SFrank Blaschka struct qeth_qoat_priv priv; 4559c3ab96f3SFrank Blaschka void __user *tmp; 4560c3ab96f3SFrank Blaschka 4561c3ab96f3SFrank Blaschka QETH_CARD_TEXT(card, 3, "qoatcmd"); 4562c3ab96f3SFrank Blaschka 4563c3ab96f3SFrank Blaschka if (!qeth_adp_supported(card, IPA_SETADP_QUERY_OAT)) { 4564c3ab96f3SFrank Blaschka rc = -EOPNOTSUPP; 4565c3ab96f3SFrank Blaschka goto out; 4566c3ab96f3SFrank Blaschka } 4567c3ab96f3SFrank Blaschka 4568c3ab96f3SFrank Blaschka if (copy_from_user(&oat_data, udata, 4569c3ab96f3SFrank Blaschka sizeof(struct qeth_query_oat_data))) { 4570c3ab96f3SFrank Blaschka rc = -EFAULT; 4571c3ab96f3SFrank Blaschka goto out; 4572c3ab96f3SFrank Blaschka } 4573c3ab96f3SFrank Blaschka 4574c3ab96f3SFrank Blaschka priv.buffer_len = oat_data.buffer_len; 4575c3ab96f3SFrank Blaschka priv.response_len = 0; 4576aec45e85SWenjia Zhang priv.buffer = vzalloc(oat_data.buffer_len); 4577c3ab96f3SFrank Blaschka if (!priv.buffer) { 4578c3ab96f3SFrank Blaschka rc = -ENOMEM; 4579c3ab96f3SFrank Blaschka goto out; 4580c3ab96f3SFrank Blaschka } 4581c3ab96f3SFrank Blaschka 4582c3ab96f3SFrank Blaschka iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_OAT, 4583c3ab96f3SFrank Blaschka sizeof(struct qeth_ipacmd_setadpparms_hdr) + 4584c3ab96f3SFrank Blaschka sizeof(struct qeth_query_oat)); 45851aec42bcSThomas Richter if (!iob) { 45861aec42bcSThomas Richter rc = -ENOMEM; 45871aec42bcSThomas Richter goto out_free; 45881aec42bcSThomas Richter } 4589ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 4590c3ab96f3SFrank Blaschka oat_req = &cmd->data.setadapterparms.data.query_oat; 4591c3ab96f3SFrank Blaschka oat_req->subcmd_code = oat_data.command; 4592c3ab96f3SFrank Blaschka 4593c3ab96f3SFrank Blaschka rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_query_oat_cb, 4594c3ab96f3SFrank Blaschka &priv); 4595c3ab96f3SFrank Blaschka if (!rc) { 4596c3ab96f3SFrank Blaschka if (is_compat_task()) 4597c3ab96f3SFrank Blaschka tmp = compat_ptr(oat_data.ptr); 4598c3ab96f3SFrank Blaschka else 4599c3ab96f3SFrank Blaschka tmp = (void __user *)(unsigned long)oat_data.ptr; 4600c3ab96f3SFrank Blaschka 4601c3ab96f3SFrank Blaschka if (copy_to_user(tmp, priv.buffer, 4602c3ab96f3SFrank Blaschka priv.response_len)) { 4603c3ab96f3SFrank Blaschka rc = -EFAULT; 4604c3ab96f3SFrank Blaschka goto out_free; 4605c3ab96f3SFrank Blaschka } 4606c3ab96f3SFrank Blaschka 4607c3ab96f3SFrank Blaschka oat_data.response_len = priv.response_len; 4608c3ab96f3SFrank Blaschka 4609c3ab96f3SFrank Blaschka if (copy_to_user(udata, &oat_data, 4610c3ab96f3SFrank Blaschka sizeof(struct qeth_query_oat_data))) 4611c3ab96f3SFrank Blaschka rc = -EFAULT; 46124b7ae122SJulian Wiedmann } 4613c3ab96f3SFrank Blaschka 4614c3ab96f3SFrank Blaschka out_free: 4615aec45e85SWenjia Zhang vfree(priv.buffer); 4616c3ab96f3SFrank Blaschka out: 4617c3ab96f3SFrank Blaschka return rc; 4618c3ab96f3SFrank Blaschka } 4619c3ab96f3SFrank Blaschka 4620e71e4072SHeiko Carstens static int qeth_query_card_info_cb(struct qeth_card *card, 462102d5cb5bSEugene Crosser struct qeth_reply *reply, unsigned long data) 462202d5cb5bSEugene Crosser { 4623686c97eeSJulian Wiedmann struct carrier_info *carrier_info = (struct carrier_info *)reply->param; 4624686c97eeSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *)data; 462502d5cb5bSEugene Crosser struct qeth_query_card_info *card_info; 462602d5cb5bSEugene Crosser 462702d5cb5bSEugene Crosser QETH_CARD_TEXT(card, 2, "qcrdincb"); 4628686c97eeSJulian Wiedmann if (qeth_setadpparms_inspect_rc(cmd)) 4629742d4d40SJulian Wiedmann return -EIO; 4630686c97eeSJulian Wiedmann 463102d5cb5bSEugene Crosser card_info = &cmd->data.setadapterparms.data.card_info; 463202d5cb5bSEugene Crosser carrier_info->card_type = card_info->card_type; 463302d5cb5bSEugene Crosser carrier_info->port_mode = card_info->port_mode; 463402d5cb5bSEugene Crosser carrier_info->port_speed = card_info->port_speed; 463502d5cb5bSEugene Crosser return 0; 463602d5cb5bSEugene Crosser } 463702d5cb5bSEugene Crosser 4638d896ac62SJulian Wiedmann int qeth_query_card_info(struct qeth_card *card, 463902d5cb5bSEugene Crosser struct carrier_info *carrier_info) 464002d5cb5bSEugene Crosser { 464102d5cb5bSEugene Crosser struct qeth_cmd_buffer *iob; 464202d5cb5bSEugene Crosser 464302d5cb5bSEugene Crosser QETH_CARD_TEXT(card, 2, "qcrdinfo"); 464402d5cb5bSEugene Crosser if (!qeth_adp_supported(card, IPA_SETADP_QUERY_CARD_INFO)) 464502d5cb5bSEugene Crosser return -EOPNOTSUPP; 464602d5cb5bSEugene Crosser iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_CARD_INFO, 464702d5cb5bSEugene Crosser sizeof(struct qeth_ipacmd_setadpparms_hdr)); 46481aec42bcSThomas Richter if (!iob) 46491aec42bcSThomas Richter return -ENOMEM; 465002d5cb5bSEugene Crosser return qeth_send_ipa_cmd(card, iob, qeth_query_card_info_cb, 465102d5cb5bSEugene Crosser (void *)carrier_info); 465202d5cb5bSEugene Crosser } 465302d5cb5bSEugene Crosser 4654ec61bd2fSJulian Wiedmann /** 4655ec61bd2fSJulian Wiedmann * qeth_vm_request_mac() - Request a hypervisor-managed MAC address 4656ec61bd2fSJulian Wiedmann * @card: pointer to a qeth_card 4657ec61bd2fSJulian Wiedmann * 4658ec61bd2fSJulian Wiedmann * Returns 4659ec61bd2fSJulian Wiedmann * 0, if a MAC address has been set for the card's netdevice 4660ec61bd2fSJulian Wiedmann * a return code, for various error conditions 4661ec61bd2fSJulian Wiedmann */ 4662ec61bd2fSJulian Wiedmann int qeth_vm_request_mac(struct qeth_card *card) 4663ec61bd2fSJulian Wiedmann { 4664ec61bd2fSJulian Wiedmann struct diag26c_mac_resp *response; 4665ec61bd2fSJulian Wiedmann struct diag26c_mac_req *request; 4666ec61bd2fSJulian Wiedmann struct ccw_dev_id id; 4667ec61bd2fSJulian Wiedmann int rc; 4668ec61bd2fSJulian Wiedmann 4669ec61bd2fSJulian Wiedmann QETH_DBF_TEXT(SETUP, 2, "vmreqmac"); 4670ec61bd2fSJulian Wiedmann 4671ec61bd2fSJulian Wiedmann request = kzalloc(sizeof(*request), GFP_KERNEL | GFP_DMA); 4672ec61bd2fSJulian Wiedmann response = kzalloc(sizeof(*response), GFP_KERNEL | GFP_DMA); 4673ec61bd2fSJulian Wiedmann if (!request || !response) { 4674ec61bd2fSJulian Wiedmann rc = -ENOMEM; 4675ec61bd2fSJulian Wiedmann goto out; 4676ec61bd2fSJulian Wiedmann } 4677ec61bd2fSJulian Wiedmann 467846646105SJulian Wiedmann ccw_device_get_id(CARD_DDEV(card), &id); 4679ec61bd2fSJulian Wiedmann request->resp_buf_len = sizeof(*response); 4680ec61bd2fSJulian Wiedmann request->resp_version = DIAG26C_VERSION2; 4681ec61bd2fSJulian Wiedmann request->op_code = DIAG26C_GET_MAC; 4682ec61bd2fSJulian Wiedmann request->devno = id.devno; 4683ec61bd2fSJulian Wiedmann 4684615dff22SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, request, sizeof(*request)); 4685ec61bd2fSJulian Wiedmann rc = diag26c(request, response, DIAG26C_MAC_SERVICES); 4686615dff22SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, request, sizeof(*request)); 4687ec61bd2fSJulian Wiedmann if (rc) 4688ec61bd2fSJulian Wiedmann goto out; 4689615dff22SJulian Wiedmann QETH_DBF_HEX(CTRL, 2, response, sizeof(*response)); 4690ec61bd2fSJulian Wiedmann 4691ec61bd2fSJulian Wiedmann if (request->resp_buf_len < sizeof(*response) || 4692ec61bd2fSJulian Wiedmann response->version != request->resp_version) { 4693ec61bd2fSJulian Wiedmann rc = -EIO; 4694ec61bd2fSJulian Wiedmann QETH_DBF_TEXT(SETUP, 2, "badresp"); 4695ec61bd2fSJulian Wiedmann QETH_DBF_HEX(SETUP, 2, &request->resp_buf_len, 4696ec61bd2fSJulian Wiedmann sizeof(request->resp_buf_len)); 4697ec61bd2fSJulian Wiedmann } else if (!is_valid_ether_addr(response->mac)) { 4698ec61bd2fSJulian Wiedmann rc = -EINVAL; 4699ec61bd2fSJulian Wiedmann QETH_DBF_TEXT(SETUP, 2, "badmac"); 4700ec61bd2fSJulian Wiedmann QETH_DBF_HEX(SETUP, 2, response->mac, ETH_ALEN); 4701ec61bd2fSJulian Wiedmann } else { 4702ec61bd2fSJulian Wiedmann ether_addr_copy(card->dev->dev_addr, response->mac); 4703ec61bd2fSJulian Wiedmann } 4704ec61bd2fSJulian Wiedmann 4705ec61bd2fSJulian Wiedmann out: 4706ec61bd2fSJulian Wiedmann kfree(response); 4707ec61bd2fSJulian Wiedmann kfree(request); 4708ec61bd2fSJulian Wiedmann return rc; 4709ec61bd2fSJulian Wiedmann } 4710ec61bd2fSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_vm_request_mac); 4711ec61bd2fSJulian Wiedmann 4712cef6ff22SJulian Wiedmann static int qeth_get_qdio_q_format(struct qeth_card *card) 47134a71df50SFrank Blaschka { 4714aa59004bSJulian Wiedmann if (card->info.type == QETH_CARD_TYPE_IQD) 4715aa59004bSJulian Wiedmann return QDIO_IQDIO_QFMT; 4716aa59004bSJulian Wiedmann else 4717aa59004bSJulian Wiedmann return QDIO_QETH_QFMT; 47184a71df50SFrank Blaschka } 47194a71df50SFrank Blaschka 4720d0ff1f52SUrsula Braun static void qeth_determine_capabilities(struct qeth_card *card) 4721d0ff1f52SUrsula Braun { 4722d0ff1f52SUrsula Braun int rc; 4723d0ff1f52SUrsula Braun int length; 4724d0ff1f52SUrsula Braun char *prcd; 4725d0ff1f52SUrsula Braun struct ccw_device *ddev; 4726d0ff1f52SUrsula Braun int ddev_offline = 0; 4727d0ff1f52SUrsula Braun 4728d0ff1f52SUrsula Braun QETH_DBF_TEXT(SETUP, 2, "detcapab"); 4729d0ff1f52SUrsula Braun ddev = CARD_DDEV(card); 4730d0ff1f52SUrsula Braun if (!ddev->online) { 4731d0ff1f52SUrsula Braun ddev_offline = 1; 4732d0ff1f52SUrsula Braun rc = ccw_device_set_online(ddev); 4733d0ff1f52SUrsula Braun if (rc) { 4734d0ff1f52SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); 4735d0ff1f52SUrsula Braun goto out; 4736d0ff1f52SUrsula Braun } 4737d0ff1f52SUrsula Braun } 4738d0ff1f52SUrsula Braun 4739d0ff1f52SUrsula Braun rc = qeth_read_conf_data(card, (void **) &prcd, &length); 4740d0ff1f52SUrsula Braun if (rc) { 4741e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "qeth_read_conf_data on device %x returned %i\n", 4742e19e5be8SJulian Wiedmann CARD_DEVID(card), rc); 4743d0ff1f52SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); 4744d0ff1f52SUrsula Braun goto out_offline; 4745d0ff1f52SUrsula Braun } 4746d0ff1f52SUrsula Braun qeth_configure_unitaddr(card, prcd); 47477e665afbSUrsula Braun if (ddev_offline) 4748d0ff1f52SUrsula Braun qeth_configure_blkt_default(card, prcd); 4749d0ff1f52SUrsula Braun kfree(prcd); 4750d0ff1f52SUrsula Braun 4751d0ff1f52SUrsula Braun rc = qdio_get_ssqd_desc(ddev, &card->ssqd); 4752d0ff1f52SUrsula Braun if (rc) 4753d0ff1f52SUrsula Braun QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); 4754d0ff1f52SUrsula Braun 47550da9581dSEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "qfmt%d", card->ssqd.qfmt); 4756bbeb2414SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "ac1:%02x", card->ssqd.qdioac1); 4757bbeb2414SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "ac2:%04x", card->ssqd.qdioac2); 4758bbeb2414SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "ac3:%04x", card->ssqd.qdioac3); 47590da9581dSEinar Lueck QETH_DBF_TEXT_(SETUP, 2, "icnt%d", card->ssqd.icnt); 47600da9581dSEinar Lueck if (!((card->ssqd.qfmt != QDIO_IQDIO_QFMT) || 47610da9581dSEinar Lueck ((card->ssqd.qdioac1 & CHSC_AC1_INITIATE_INPUTQ) == 0) || 47620da9581dSEinar Lueck ((card->ssqd.qdioac3 & CHSC_AC3_FORMAT2_CQ_AVAILABLE) == 0))) { 47630da9581dSEinar Lueck dev_info(&card->gdev->dev, 47640da9581dSEinar Lueck "Completion Queueing supported\n"); 47650da9581dSEinar Lueck } else { 47660da9581dSEinar Lueck card->options.cq = QETH_CQ_NOTAVAILABLE; 47670da9581dSEinar Lueck } 47680da9581dSEinar Lueck 47690da9581dSEinar Lueck 4770d0ff1f52SUrsula Braun out_offline: 4771d0ff1f52SUrsula Braun if (ddev_offline == 1) 4772d0ff1f52SUrsula Braun ccw_device_set_offline(ddev); 4773d0ff1f52SUrsula Braun out: 4774d0ff1f52SUrsula Braun return; 4775d0ff1f52SUrsula Braun } 4776d0ff1f52SUrsula Braun 4777cef6ff22SJulian Wiedmann static void qeth_qdio_establish_cq(struct qeth_card *card, 47780da9581dSEinar Lueck struct qdio_buffer **in_sbal_ptrs, 4779cef6ff22SJulian Wiedmann void (**queue_start_poll) 4780cef6ff22SJulian Wiedmann (struct ccw_device *, int, 4781cef6ff22SJulian Wiedmann unsigned long)) 4782cef6ff22SJulian Wiedmann { 47830da9581dSEinar Lueck int i; 47840da9581dSEinar Lueck 47850da9581dSEinar Lueck if (card->options.cq == QETH_CQ_ENABLED) { 47860da9581dSEinar Lueck int offset = QDIO_MAX_BUFFERS_PER_Q * 47870da9581dSEinar Lueck (card->qdio.no_in_queues - 1); 47880da9581dSEinar Lueck for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) { 47890da9581dSEinar Lueck in_sbal_ptrs[offset + i] = (struct qdio_buffer *) 47900da9581dSEinar Lueck virt_to_phys(card->qdio.c_q->bufs[i].buffer); 47910da9581dSEinar Lueck } 47920da9581dSEinar Lueck 47930da9581dSEinar Lueck queue_start_poll[card->qdio.no_in_queues - 1] = NULL; 47940da9581dSEinar Lueck } 47950da9581dSEinar Lueck } 47960da9581dSEinar Lueck 47974a71df50SFrank Blaschka static int qeth_qdio_establish(struct qeth_card *card) 47984a71df50SFrank Blaschka { 47994a71df50SFrank Blaschka struct qdio_initialize init_data; 48004a71df50SFrank Blaschka char *qib_param_field; 48014a71df50SFrank Blaschka struct qdio_buffer **in_sbal_ptrs; 4802104ea556Sfrank.blaschka@de.ibm.com void (**queue_start_poll) (struct ccw_device *, int, unsigned long); 48034a71df50SFrank Blaschka struct qdio_buffer **out_sbal_ptrs; 48044a71df50SFrank Blaschka int i, j, k; 48054a71df50SFrank Blaschka int rc = 0; 48064a71df50SFrank Blaschka 4807d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "qdioest"); 48084a71df50SFrank Blaschka 48096396bb22SKees Cook qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q, 48104a71df50SFrank Blaschka GFP_KERNEL); 4811104ea556Sfrank.blaschka@de.ibm.com if (!qib_param_field) { 4812104ea556Sfrank.blaschka@de.ibm.com rc = -ENOMEM; 4813104ea556Sfrank.blaschka@de.ibm.com goto out_free_nothing; 4814104ea556Sfrank.blaschka@de.ibm.com } 48154a71df50SFrank Blaschka 48164a71df50SFrank Blaschka qeth_create_qib_param_field(card, qib_param_field); 48174a71df50SFrank Blaschka qeth_create_qib_param_field_blkt(card, qib_param_field); 48184a71df50SFrank Blaschka 48196396bb22SKees Cook in_sbal_ptrs = kcalloc(card->qdio.no_in_queues * QDIO_MAX_BUFFERS_PER_Q, 48206396bb22SKees Cook sizeof(void *), 48214a71df50SFrank Blaschka GFP_KERNEL); 48224a71df50SFrank Blaschka if (!in_sbal_ptrs) { 4823104ea556Sfrank.blaschka@de.ibm.com rc = -ENOMEM; 4824104ea556Sfrank.blaschka@de.ibm.com goto out_free_qib_param; 48254a71df50SFrank Blaschka } 48260da9581dSEinar Lueck for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) { 48274a71df50SFrank Blaschka in_sbal_ptrs[i] = (struct qdio_buffer *) 48284a71df50SFrank Blaschka virt_to_phys(card->qdio.in_q->bufs[i].buffer); 48290da9581dSEinar Lueck } 48304a71df50SFrank Blaschka 48316396bb22SKees Cook queue_start_poll = kcalloc(card->qdio.no_in_queues, sizeof(void *), 48320da9581dSEinar Lueck GFP_KERNEL); 4833104ea556Sfrank.blaschka@de.ibm.com if (!queue_start_poll) { 4834104ea556Sfrank.blaschka@de.ibm.com rc = -ENOMEM; 4835104ea556Sfrank.blaschka@de.ibm.com goto out_free_in_sbals; 4836104ea556Sfrank.blaschka@de.ibm.com } 48370da9581dSEinar Lueck for (i = 0; i < card->qdio.no_in_queues; ++i) 48387bcd64ebSJulian Wiedmann queue_start_poll[i] = qeth_qdio_start_poll; 48390da9581dSEinar Lueck 48400da9581dSEinar Lueck qeth_qdio_establish_cq(card, in_sbal_ptrs, queue_start_poll); 4841104ea556Sfrank.blaschka@de.ibm.com 48424a71df50SFrank Blaschka out_sbal_ptrs = 48436396bb22SKees Cook kcalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q, 48446396bb22SKees Cook sizeof(void *), 48456396bb22SKees Cook GFP_KERNEL); 48464a71df50SFrank Blaschka if (!out_sbal_ptrs) { 4847104ea556Sfrank.blaschka@de.ibm.com rc = -ENOMEM; 4848104ea556Sfrank.blaschka@de.ibm.com goto out_free_queue_start_poll; 48494a71df50SFrank Blaschka } 48504a71df50SFrank Blaschka for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i) 48514a71df50SFrank Blaschka for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) { 48524a71df50SFrank Blaschka out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys( 48530da9581dSEinar Lueck card->qdio.out_qs[i]->bufs[j]->buffer); 48544a71df50SFrank Blaschka } 48554a71df50SFrank Blaschka 48564a71df50SFrank Blaschka memset(&init_data, 0, sizeof(struct qdio_initialize)); 48574a71df50SFrank Blaschka init_data.cdev = CARD_DDEV(card); 48584a71df50SFrank Blaschka init_data.q_format = qeth_get_qdio_q_format(card); 48594a71df50SFrank Blaschka init_data.qib_param_field_format = 0; 48604a71df50SFrank Blaschka init_data.qib_param_field = qib_param_field; 48610da9581dSEinar Lueck init_data.no_input_qs = card->qdio.no_in_queues; 48624a71df50SFrank Blaschka init_data.no_output_qs = card->qdio.no_out_queues; 48637bcd64ebSJulian Wiedmann init_data.input_handler = qeth_qdio_input_handler; 48647bcd64ebSJulian Wiedmann init_data.output_handler = qeth_qdio_output_handler; 4865e58b0d90SSteffen Maier init_data.queue_start_poll_array = queue_start_poll; 48664a71df50SFrank Blaschka init_data.int_parm = (unsigned long) card; 4867bdf11767SJulian Wiedmann init_data.input_sbal_addr_array = in_sbal_ptrs; 4868bdf11767SJulian Wiedmann init_data.output_sbal_addr_array = out_sbal_ptrs; 48690da9581dSEinar Lueck init_data.output_sbal_state_array = card->qdio.out_bufstates; 48703d6c76ffSJan Glauber init_data.scan_threshold = 48710fa81cd4SStefan Raspl (card->info.type == QETH_CARD_TYPE_IQD) ? 1 : 32; 48724a71df50SFrank Blaschka 48734a71df50SFrank Blaschka if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED, 48744a71df50SFrank Blaschka QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) { 4875cc961d40SJan Glauber rc = qdio_allocate(&init_data); 4876cc961d40SJan Glauber if (rc) { 48774a71df50SFrank Blaschka atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); 4878cc961d40SJan Glauber goto out; 48794a71df50SFrank Blaschka } 4880cc961d40SJan Glauber rc = qdio_establish(&init_data); 4881cc961d40SJan Glauber if (rc) { 4882cc961d40SJan Glauber atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); 4883cc961d40SJan Glauber qdio_free(CARD_DDEV(card)); 4884cc961d40SJan Glauber } 4885cc961d40SJan Glauber } 48860da9581dSEinar Lueck 48870da9581dSEinar Lueck switch (card->options.cq) { 48880da9581dSEinar Lueck case QETH_CQ_ENABLED: 48890da9581dSEinar Lueck dev_info(&card->gdev->dev, "Completion Queue support enabled"); 48900da9581dSEinar Lueck break; 48910da9581dSEinar Lueck case QETH_CQ_DISABLED: 48920da9581dSEinar Lueck dev_info(&card->gdev->dev, "Completion Queue support disabled"); 48930da9581dSEinar Lueck break; 48940da9581dSEinar Lueck default: 48950da9581dSEinar Lueck break; 48960da9581dSEinar Lueck } 4897cc961d40SJan Glauber out: 48984a71df50SFrank Blaschka kfree(out_sbal_ptrs); 4899104ea556Sfrank.blaschka@de.ibm.com out_free_queue_start_poll: 4900104ea556Sfrank.blaschka@de.ibm.com kfree(queue_start_poll); 4901104ea556Sfrank.blaschka@de.ibm.com out_free_in_sbals: 49024a71df50SFrank Blaschka kfree(in_sbal_ptrs); 4903104ea556Sfrank.blaschka@de.ibm.com out_free_qib_param: 49044a71df50SFrank Blaschka kfree(qib_param_field); 4905104ea556Sfrank.blaschka@de.ibm.com out_free_nothing: 49064a71df50SFrank Blaschka return rc; 49074a71df50SFrank Blaschka } 49084a71df50SFrank Blaschka 49094a71df50SFrank Blaschka static void qeth_core_free_card(struct qeth_card *card) 49104a71df50SFrank Blaschka { 4911d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "freecrd"); 4912d11ba0c4SPeter Tiedemann QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); 49134a71df50SFrank Blaschka qeth_clean_channel(&card->read); 49144a71df50SFrank Blaschka qeth_clean_channel(&card->write); 4915f15cdaf2SJulian Wiedmann qeth_clean_channel(&card->data); 4916c0a2e4d1SJulian Wiedmann destroy_workqueue(card->event_wq); 491741c47da3SJulian Wiedmann qeth_free_qdio_queues(card); 49186bcac508SMartin Schwidefsky unregister_service_level(&card->qeth_service_level); 4919a2eb0ad5SJulian Wiedmann dev_set_drvdata(&card->gdev->dev, NULL); 49204a71df50SFrank Blaschka kfree(card); 49214a71df50SFrank Blaschka } 49224a71df50SFrank Blaschka 4923395672e0SStefan Raspl void qeth_trace_features(struct qeth_card *card) 4924395672e0SStefan Raspl { 4925395672e0SStefan Raspl QETH_CARD_TEXT(card, 2, "features"); 49264d7def2aSThomas Richter QETH_CARD_HEX(card, 2, &card->options.ipa4, sizeof(card->options.ipa4)); 49274d7def2aSThomas Richter QETH_CARD_HEX(card, 2, &card->options.ipa6, sizeof(card->options.ipa6)); 49284d7def2aSThomas Richter QETH_CARD_HEX(card, 2, &card->options.adp, sizeof(card->options.adp)); 49294d7def2aSThomas Richter QETH_CARD_HEX(card, 2, &card->info.diagass_support, 49304d7def2aSThomas Richter sizeof(card->info.diagass_support)); 4931395672e0SStefan Raspl } 4932395672e0SStefan Raspl EXPORT_SYMBOL_GPL(qeth_trace_features); 4933395672e0SStefan Raspl 49344a71df50SFrank Blaschka static struct ccw_device_id qeth_ids[] = { 49355113fec0SUrsula Braun {CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01), 49365113fec0SUrsula Braun .driver_info = QETH_CARD_TYPE_OSD}, 49375113fec0SUrsula Braun {CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05), 49385113fec0SUrsula Braun .driver_info = QETH_CARD_TYPE_IQD}, 49395113fec0SUrsula Braun {CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06), 49405113fec0SUrsula Braun .driver_info = QETH_CARD_TYPE_OSN}, 49415113fec0SUrsula Braun {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03), 49425113fec0SUrsula Braun .driver_info = QETH_CARD_TYPE_OSM}, 49435113fec0SUrsula Braun {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02), 49445113fec0SUrsula Braun .driver_info = QETH_CARD_TYPE_OSX}, 49454a71df50SFrank Blaschka {}, 49464a71df50SFrank Blaschka }; 49474a71df50SFrank Blaschka MODULE_DEVICE_TABLE(ccw, qeth_ids); 49484a71df50SFrank Blaschka 49494a71df50SFrank Blaschka static struct ccw_driver qeth_ccw_driver = { 49503bda058bSSebastian Ott .driver = { 49513e70b3b8SSebastian Ott .owner = THIS_MODULE, 49524a71df50SFrank Blaschka .name = "qeth", 49533bda058bSSebastian Ott }, 49544a71df50SFrank Blaschka .ids = qeth_ids, 49554a71df50SFrank Blaschka .probe = ccwgroup_probe_ccwdev, 49564a71df50SFrank Blaschka .remove = ccwgroup_remove_ccwdev, 49574a71df50SFrank Blaschka }; 49584a71df50SFrank Blaschka 49599fae5c3bSJulian Wiedmann int qeth_core_hardsetup_card(struct qeth_card *card, bool *carrier_ok) 49604a71df50SFrank Blaschka { 49616ebb7f8dSStefan Raspl int retries = 3; 49624a71df50SFrank Blaschka int rc; 49634a71df50SFrank Blaschka 4964d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "hrdsetup"); 49654a71df50SFrank Blaschka atomic_set(&card->force_alloc_skb, 0); 4966a4cdc9baSJulian Wiedmann rc = qeth_update_from_chp_desc(card); 4967a4cdc9baSJulian Wiedmann if (rc) 4968a4cdc9baSJulian Wiedmann return rc; 49694a71df50SFrank Blaschka retry: 49706ebb7f8dSStefan Raspl if (retries < 3) 4971e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "Retrying to do IDX activates on device %x.\n", 4972e19e5be8SJulian Wiedmann CARD_DEVID(card)); 497322ae2790SUrsula Braun rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD); 49744a71df50SFrank Blaschka ccw_device_set_offline(CARD_DDEV(card)); 49754a71df50SFrank Blaschka ccw_device_set_offline(CARD_WDEV(card)); 49764a71df50SFrank Blaschka ccw_device_set_offline(CARD_RDEV(card)); 497722ae2790SUrsula Braun qdio_free(CARD_DDEV(card)); 4978aa909224SUrsula Braun rc = ccw_device_set_online(CARD_RDEV(card)); 4979aa909224SUrsula Braun if (rc) 4980aa909224SUrsula Braun goto retriable; 4981aa909224SUrsula Braun rc = ccw_device_set_online(CARD_WDEV(card)); 4982aa909224SUrsula Braun if (rc) 4983aa909224SUrsula Braun goto retriable; 4984aa909224SUrsula Braun rc = ccw_device_set_online(CARD_DDEV(card)); 4985aa909224SUrsula Braun if (rc) 4986aa909224SUrsula Braun goto retriable; 4987aa909224SUrsula Braun retriable: 49884a71df50SFrank Blaschka if (rc == -ERESTARTSYS) { 4989d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "break1"); 49904a71df50SFrank Blaschka return rc; 49914a71df50SFrank Blaschka } else if (rc) { 4992d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); 49936ebb7f8dSStefan Raspl if (--retries < 0) 49944a71df50SFrank Blaschka goto out; 49954a71df50SFrank Blaschka else 49964a71df50SFrank Blaschka goto retry; 49974a71df50SFrank Blaschka } 4998d0ff1f52SUrsula Braun qeth_determine_capabilities(card); 49994a71df50SFrank Blaschka qeth_init_tokens(card); 50004a71df50SFrank Blaschka qeth_init_func_level(card); 50012e873d10SJulian Wiedmann 50022e873d10SJulian Wiedmann rc = qeth_idx_activate_read_channel(card); 50032e873d10SJulian Wiedmann if (rc == -EINTR) { 5004d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "break2"); 50054a71df50SFrank Blaschka return rc; 50064a71df50SFrank Blaschka } else if (rc) { 5007d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); 50084a71df50SFrank Blaschka if (--retries < 0) 50094a71df50SFrank Blaschka goto out; 50104a71df50SFrank Blaschka else 50114a71df50SFrank Blaschka goto retry; 50124a71df50SFrank Blaschka } 50132e873d10SJulian Wiedmann 50142e873d10SJulian Wiedmann rc = qeth_idx_activate_write_channel(card); 50152e873d10SJulian Wiedmann if (rc == -EINTR) { 5016d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "break3"); 50174a71df50SFrank Blaschka return rc; 50184a71df50SFrank Blaschka } else if (rc) { 5019d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); 50204a71df50SFrank Blaschka if (--retries < 0) 50214a71df50SFrank Blaschka goto out; 50224a71df50SFrank Blaschka else 50234a71df50SFrank Blaschka goto retry; 50244a71df50SFrank Blaschka } 5025908abbb5SUrsula Braun card->read_or_write_problem = 0; 50264a71df50SFrank Blaschka rc = qeth_mpc_initialize(card); 50274a71df50SFrank Blaschka if (rc) { 5028d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); 50294a71df50SFrank Blaschka goto out; 50304a71df50SFrank Blaschka } 50311da74b1cSFrank Blaschka 503210340510SJulian Wiedmann rc = qeth_send_startlan(card); 503310340510SJulian Wiedmann if (rc) { 503410340510SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); 50354b7ae122SJulian Wiedmann if (rc == -ENETDOWN) { 50364b7ae122SJulian Wiedmann dev_warn(&card->gdev->dev, "The LAN is offline\n"); 50379fae5c3bSJulian Wiedmann *carrier_ok = false; 503810340510SJulian Wiedmann } else { 503910340510SJulian Wiedmann goto out; 504010340510SJulian Wiedmann } 504191cc98f5SJulian Wiedmann } else { 50429fae5c3bSJulian Wiedmann *carrier_ok = true; 50439fae5c3bSJulian Wiedmann } 50449fae5c3bSJulian Wiedmann 50451da74b1cSFrank Blaschka card->options.ipa4.supported_funcs = 0; 50464d7def2aSThomas Richter card->options.ipa6.supported_funcs = 0; 50471da74b1cSFrank Blaschka card->options.adp.supported_funcs = 0; 5048b4d72c08SEugene Crosser card->options.sbp.supported_funcs = 0; 50491da74b1cSFrank Blaschka card->info.diagass_support = 0; 50501aec42bcSThomas Richter rc = qeth_query_ipassists(card, QETH_PROT_IPV4); 50511aec42bcSThomas Richter if (rc == -ENOMEM) 50521aec42bcSThomas Richter goto out; 5053ee75fb86SKittipon Meesompop if (qeth_is_supported(card, IPA_IPV6)) { 5054ee75fb86SKittipon Meesompop rc = qeth_query_ipassists(card, QETH_PROT_IPV6); 5055ee75fb86SKittipon Meesompop if (rc == -ENOMEM) 5056ee75fb86SKittipon Meesompop goto out; 5057ee75fb86SKittipon Meesompop } 50581aec42bcSThomas Richter if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) { 50591aec42bcSThomas Richter rc = qeth_query_setadapterparms(card); 50601aec42bcSThomas Richter if (rc < 0) { 506110340510SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc); 50621aec42bcSThomas Richter goto out; 50631aec42bcSThomas Richter } 50641aec42bcSThomas Richter } 50651aec42bcSThomas Richter if (qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) { 50661aec42bcSThomas Richter rc = qeth_query_setdiagass(card); 50671aec42bcSThomas Richter if (rc < 0) { 506810340510SJulian Wiedmann QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc); 50691aec42bcSThomas Richter goto out; 50701aec42bcSThomas Richter } 50711aec42bcSThomas Richter } 50724a71df50SFrank Blaschka return 0; 50734a71df50SFrank Blaschka out: 507474eacdb9SFrank Blaschka dev_warn(&card->gdev->dev, "The qeth device driver failed to recover " 507574eacdb9SFrank Blaschka "an error on the device\n"); 5076e19e5be8SJulian Wiedmann QETH_DBF_MESSAGE(2, "Initialization for device %x failed in hardsetup! rc=%d\n", 5077e19e5be8SJulian Wiedmann CARD_DEVID(card), rc); 50784a71df50SFrank Blaschka return rc; 50794a71df50SFrank Blaschka } 50804a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card); 50814a71df50SFrank Blaschka 50828d68af6aSJulian Wiedmann static void qeth_create_skb_frag(struct qdio_buffer_element *element, 50838d68af6aSJulian Wiedmann struct sk_buff *skb, int offset, int data_len) 50844a71df50SFrank Blaschka { 50854a71df50SFrank Blaschka struct page *page = virt_to_page(element->addr); 5086b6f72f96SJulian Wiedmann unsigned int next_frag; 5087b6f72f96SJulian Wiedmann 50888d68af6aSJulian Wiedmann /* first fill the linear space */ 50898d68af6aSJulian Wiedmann if (!skb->len) { 50908d68af6aSJulian Wiedmann unsigned int linear = min(data_len, skb_tailroom(skb)); 5091b3332930SFrank Blaschka 50928d68af6aSJulian Wiedmann skb_put_data(skb, element->addr + offset, linear); 50938d68af6aSJulian Wiedmann data_len -= linear; 50948d68af6aSJulian Wiedmann if (!data_len) 50958d68af6aSJulian Wiedmann return; 50968d68af6aSJulian Wiedmann offset += linear; 5097b6f72f96SJulian Wiedmann /* fall through to add page frag for remaining data */ 50984a71df50SFrank Blaschka } 50994a71df50SFrank Blaschka 51008d68af6aSJulian Wiedmann next_frag = skb_shinfo(skb)->nr_frags; 51014a71df50SFrank Blaschka get_page(page); 51028d68af6aSJulian Wiedmann skb_add_rx_frag(skb, next_frag, page, offset, data_len, data_len); 51034a71df50SFrank Blaschka } 51044a71df50SFrank Blaschka 5105bca51650SThomas Richter static inline int qeth_is_last_sbale(struct qdio_buffer_element *sbale) 5106bca51650SThomas Richter { 5107bca51650SThomas Richter return (sbale->eflags & SBAL_EFLAGS_LAST_ENTRY); 5108bca51650SThomas Richter } 5109bca51650SThomas Richter 51104a71df50SFrank Blaschka struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card, 5111b3332930SFrank Blaschka struct qeth_qdio_buffer *qethbuffer, 51124a71df50SFrank Blaschka struct qdio_buffer_element **__element, int *__offset, 51134a71df50SFrank Blaschka struct qeth_hdr **hdr) 51144a71df50SFrank Blaschka { 51154a71df50SFrank Blaschka struct qdio_buffer_element *element = *__element; 5116b3332930SFrank Blaschka struct qdio_buffer *buffer = qethbuffer->buffer; 51174a71df50SFrank Blaschka int offset = *__offset; 51188d68af6aSJulian Wiedmann struct sk_buff *skb; 511976b11f8eSUrsula Braun int skb_len = 0; 51204a71df50SFrank Blaschka void *data_ptr; 51214a71df50SFrank Blaschka int data_len; 51224a71df50SFrank Blaschka int headroom = 0; 51234a71df50SFrank Blaschka int use_rx_sg = 0; 51244a71df50SFrank Blaschka 51254a71df50SFrank Blaschka /* qeth_hdr must not cross element boundaries */ 5126864c17c3SJulian Wiedmann while (element->length < offset + sizeof(struct qeth_hdr)) { 51274a71df50SFrank Blaschka if (qeth_is_last_sbale(element)) 51284a71df50SFrank Blaschka return NULL; 51294a71df50SFrank Blaschka element++; 51304a71df50SFrank Blaschka offset = 0; 51314a71df50SFrank Blaschka } 51324a71df50SFrank Blaschka *hdr = element->addr + offset; 51334a71df50SFrank Blaschka 51344a71df50SFrank Blaschka offset += sizeof(struct qeth_hdr); 513576b11f8eSUrsula Braun switch ((*hdr)->hdr.l2.id) { 513676b11f8eSUrsula Braun case QETH_HEADER_TYPE_LAYER2: 51374a71df50SFrank Blaschka skb_len = (*hdr)->hdr.l2.pkt_length; 513876b11f8eSUrsula Braun break; 513976b11f8eSUrsula Braun case QETH_HEADER_TYPE_LAYER3: 51404a71df50SFrank Blaschka skb_len = (*hdr)->hdr.l3.length; 5141b403e685SFrank Blaschka headroom = ETH_HLEN; 514276b11f8eSUrsula Braun break; 514376b11f8eSUrsula Braun case QETH_HEADER_TYPE_OSN: 514476b11f8eSUrsula Braun skb_len = (*hdr)->hdr.osn.pdu_length; 514576b11f8eSUrsula Braun headroom = sizeof(struct qeth_hdr); 514676b11f8eSUrsula Braun break; 514776b11f8eSUrsula Braun default: 514876b11f8eSUrsula Braun break; 51494a71df50SFrank Blaschka } 51504a71df50SFrank Blaschka 51514a71df50SFrank Blaschka if (!skb_len) 51524a71df50SFrank Blaschka return NULL; 51534a71df50SFrank Blaschka 5154b3332930SFrank Blaschka if (((skb_len >= card->options.rx_sg_cb) && 51554a71df50SFrank Blaschka (!(card->info.type == QETH_CARD_TYPE_OSN)) && 5156b3332930SFrank Blaschka (!atomic_read(&card->force_alloc_skb))) || 51578d68af6aSJulian Wiedmann (card->options.cq == QETH_CQ_ENABLED)) 51584a71df50SFrank Blaschka use_rx_sg = 1; 51598d68af6aSJulian Wiedmann 51608d68af6aSJulian Wiedmann if (use_rx_sg && qethbuffer->rx_skb) { 51618d68af6aSJulian Wiedmann /* QETH_CQ_ENABLED only: */ 51628d68af6aSJulian Wiedmann skb = qethbuffer->rx_skb; 51638d68af6aSJulian Wiedmann qethbuffer->rx_skb = NULL; 51644a71df50SFrank Blaschka } else { 51658d68af6aSJulian Wiedmann unsigned int linear = (use_rx_sg) ? QETH_RX_PULL_LEN : skb_len; 51668d68af6aSJulian Wiedmann 516737cf05d2SJulian Wiedmann skb = napi_alloc_skb(&card->napi, linear + headroom); 51688d68af6aSJulian Wiedmann } 51694a71df50SFrank Blaschka if (!skb) 51704a71df50SFrank Blaschka goto no_mem; 51714a71df50SFrank Blaschka if (headroom) 51724a71df50SFrank Blaschka skb_reserve(skb, headroom); 51734a71df50SFrank Blaschka 51744a71df50SFrank Blaschka data_ptr = element->addr + offset; 51754a71df50SFrank Blaschka while (skb_len) { 51764a71df50SFrank Blaschka data_len = min(skb_len, (int)(element->length - offset)); 51774a71df50SFrank Blaschka if (data_len) { 51788d68af6aSJulian Wiedmann if (use_rx_sg) 51798d68af6aSJulian Wiedmann qeth_create_skb_frag(element, skb, offset, 51808d68af6aSJulian Wiedmann data_len); 51818d68af6aSJulian Wiedmann else 518259ae1d12SJohannes Berg skb_put_data(skb, data_ptr, data_len); 51834a71df50SFrank Blaschka } 51844a71df50SFrank Blaschka skb_len -= data_len; 51854a71df50SFrank Blaschka if (skb_len) { 51864a71df50SFrank Blaschka if (qeth_is_last_sbale(element)) { 5187847a50fdSCarsten Otte QETH_CARD_TEXT(card, 4, "unexeob"); 5188efd5d9a4SCarsten Otte QETH_CARD_HEX(card, 2, buffer, sizeof(void *)); 51894a71df50SFrank Blaschka dev_kfree_skb_any(skb); 5190b0abc4f5SJulian Wiedmann QETH_CARD_STAT_INC(card, rx_errors); 51914a71df50SFrank Blaschka return NULL; 51924a71df50SFrank Blaschka } 51934a71df50SFrank Blaschka element++; 51944a71df50SFrank Blaschka offset = 0; 51954a71df50SFrank Blaschka data_ptr = element->addr; 51964a71df50SFrank Blaschka } else { 51974a71df50SFrank Blaschka offset += data_len; 51984a71df50SFrank Blaschka } 51994a71df50SFrank Blaschka } 52004a71df50SFrank Blaschka *__element = element; 52014a71df50SFrank Blaschka *__offset = offset; 5202b0abc4f5SJulian Wiedmann if (use_rx_sg) { 5203b0abc4f5SJulian Wiedmann QETH_CARD_STAT_INC(card, rx_sg_skbs); 5204b0abc4f5SJulian Wiedmann QETH_CARD_STAT_ADD(card, rx_sg_frags, 5205b0abc4f5SJulian Wiedmann skb_shinfo(skb)->nr_frags); 52064a71df50SFrank Blaschka } 52074a71df50SFrank Blaschka return skb; 52084a71df50SFrank Blaschka no_mem: 52094a71df50SFrank Blaschka if (net_ratelimit()) { 5210847a50fdSCarsten Otte QETH_CARD_TEXT(card, 2, "noskbmem"); 52114a71df50SFrank Blaschka } 5212b0abc4f5SJulian Wiedmann QETH_CARD_STAT_INC(card, rx_dropped); 52134a71df50SFrank Blaschka return NULL; 52144a71df50SFrank Blaschka } 52154a71df50SFrank Blaschka EXPORT_SYMBOL_GPL(qeth_core_get_next_skb); 52164a71df50SFrank Blaschka 5217d73ef324SJulian Wiedmann int qeth_poll(struct napi_struct *napi, int budget) 5218d73ef324SJulian Wiedmann { 5219d73ef324SJulian Wiedmann struct qeth_card *card = container_of(napi, struct qeth_card, napi); 5220d73ef324SJulian Wiedmann int work_done = 0; 5221d73ef324SJulian Wiedmann struct qeth_qdio_buffer *buffer; 5222d73ef324SJulian Wiedmann int done; 5223d73ef324SJulian Wiedmann int new_budget = budget; 5224d73ef324SJulian Wiedmann 5225d73ef324SJulian Wiedmann while (1) { 5226d73ef324SJulian Wiedmann if (!card->rx.b_count) { 5227d73ef324SJulian Wiedmann card->rx.qdio_err = 0; 5228d73ef324SJulian Wiedmann card->rx.b_count = qdio_get_next_buffers( 5229d73ef324SJulian Wiedmann card->data.ccwdev, 0, &card->rx.b_index, 5230d73ef324SJulian Wiedmann &card->rx.qdio_err); 5231d73ef324SJulian Wiedmann if (card->rx.b_count <= 0) { 5232d73ef324SJulian Wiedmann card->rx.b_count = 0; 5233d73ef324SJulian Wiedmann break; 5234d73ef324SJulian Wiedmann } 5235d73ef324SJulian Wiedmann card->rx.b_element = 5236d73ef324SJulian Wiedmann &card->qdio.in_q->bufs[card->rx.b_index] 5237d73ef324SJulian Wiedmann .buffer->element[0]; 5238d73ef324SJulian Wiedmann card->rx.e_offset = 0; 5239d73ef324SJulian Wiedmann } 5240d73ef324SJulian Wiedmann 5241d73ef324SJulian Wiedmann while (card->rx.b_count) { 5242d73ef324SJulian Wiedmann buffer = &card->qdio.in_q->bufs[card->rx.b_index]; 5243d73ef324SJulian Wiedmann if (!(card->rx.qdio_err && 5244d73ef324SJulian Wiedmann qeth_check_qdio_errors(card, buffer->buffer, 5245d73ef324SJulian Wiedmann card->rx.qdio_err, "qinerr"))) 5246d73ef324SJulian Wiedmann work_done += 5247d73ef324SJulian Wiedmann card->discipline->process_rx_buffer( 5248d73ef324SJulian Wiedmann card, new_budget, &done); 5249d73ef324SJulian Wiedmann else 5250d73ef324SJulian Wiedmann done = 1; 5251d73ef324SJulian Wiedmann 5252d73ef324SJulian Wiedmann if (done) { 5253b0abc4f5SJulian Wiedmann QETH_CARD_STAT_INC(card, rx_bufs); 5254d73ef324SJulian Wiedmann qeth_put_buffer_pool_entry(card, 5255d73ef324SJulian Wiedmann buffer->pool_entry); 5256d73ef324SJulian Wiedmann qeth_queue_input_buffer(card, card->rx.b_index); 5257d73ef324SJulian Wiedmann card->rx.b_count--; 5258d73ef324SJulian Wiedmann if (card->rx.b_count) { 5259d73ef324SJulian Wiedmann card->rx.b_index = 5260d73ef324SJulian Wiedmann (card->rx.b_index + 1) % 5261d73ef324SJulian Wiedmann QDIO_MAX_BUFFERS_PER_Q; 5262d73ef324SJulian Wiedmann card->rx.b_element = 5263d73ef324SJulian Wiedmann &card->qdio.in_q 5264d73ef324SJulian Wiedmann ->bufs[card->rx.b_index] 5265d73ef324SJulian Wiedmann .buffer->element[0]; 5266d73ef324SJulian Wiedmann card->rx.e_offset = 0; 5267d73ef324SJulian Wiedmann } 5268d73ef324SJulian Wiedmann } 5269d73ef324SJulian Wiedmann 5270d73ef324SJulian Wiedmann if (work_done >= budget) 5271d73ef324SJulian Wiedmann goto out; 5272d73ef324SJulian Wiedmann else 5273d73ef324SJulian Wiedmann new_budget = budget - work_done; 5274d73ef324SJulian Wiedmann } 5275d73ef324SJulian Wiedmann } 5276d73ef324SJulian Wiedmann 5277978759e8SJulian Wiedmann napi_complete_done(napi, work_done); 5278d73ef324SJulian Wiedmann if (qdio_start_irq(card->data.ccwdev, 0)) 5279d73ef324SJulian Wiedmann napi_schedule(&card->napi); 5280d73ef324SJulian Wiedmann out: 5281d73ef324SJulian Wiedmann return work_done; 5282d73ef324SJulian Wiedmann } 5283d73ef324SJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_poll); 5284d73ef324SJulian Wiedmann 5285ad3cbf61SJulian Wiedmann static int qeth_setassparms_inspect_rc(struct qeth_ipa_cmd *cmd) 5286ad3cbf61SJulian Wiedmann { 5287ad3cbf61SJulian Wiedmann if (!cmd->hdr.return_code) 5288ad3cbf61SJulian Wiedmann cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code; 5289ad3cbf61SJulian Wiedmann return cmd->hdr.return_code; 5290ad3cbf61SJulian Wiedmann } 5291ad3cbf61SJulian Wiedmann 52924666d7fbSJulian Wiedmann static int qeth_setassparms_get_caps_cb(struct qeth_card *card, 52934666d7fbSJulian Wiedmann struct qeth_reply *reply, 52944666d7fbSJulian Wiedmann unsigned long data) 52954666d7fbSJulian Wiedmann { 52964666d7fbSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 52974666d7fbSJulian Wiedmann struct qeth_ipa_caps *caps = reply->param; 52984666d7fbSJulian Wiedmann 52994666d7fbSJulian Wiedmann if (qeth_setassparms_inspect_rc(cmd)) 5300742d4d40SJulian Wiedmann return -EIO; 53014666d7fbSJulian Wiedmann 53024666d7fbSJulian Wiedmann caps->supported = cmd->data.setassparms.data.caps.supported; 53034666d7fbSJulian Wiedmann caps->enabled = cmd->data.setassparms.data.caps.enabled; 53044666d7fbSJulian Wiedmann return 0; 53054666d7fbSJulian Wiedmann } 53064666d7fbSJulian Wiedmann 53078f43fb00SThomas Richter int qeth_setassparms_cb(struct qeth_card *card, 53084d7def2aSThomas Richter struct qeth_reply *reply, unsigned long data) 53094d7def2aSThomas Richter { 5310742d4d40SJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 53114d7def2aSThomas Richter 53124d7def2aSThomas Richter QETH_CARD_TEXT(card, 4, "defadpcb"); 53134d7def2aSThomas Richter 5314742d4d40SJulian Wiedmann if (cmd->hdr.return_code) 5315742d4d40SJulian Wiedmann return -EIO; 5316742d4d40SJulian Wiedmann 53174d7def2aSThomas Richter cmd->hdr.return_code = cmd->data.setassparms.hdr.return_code; 53184d7def2aSThomas Richter if (cmd->hdr.prot_version == QETH_PROT_IPV4) 53194d7def2aSThomas Richter card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled; 53204d7def2aSThomas Richter if (cmd->hdr.prot_version == QETH_PROT_IPV6) 53214d7def2aSThomas Richter card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled; 53224d7def2aSThomas Richter return 0; 53234d7def2aSThomas Richter } 53248f43fb00SThomas Richter EXPORT_SYMBOL_GPL(qeth_setassparms_cb); 53254d7def2aSThomas Richter 5326b475e316SThomas Richter struct qeth_cmd_buffer *qeth_get_setassparms_cmd(struct qeth_card *card, 53274d7def2aSThomas Richter enum qeth_ipa_funcs ipa_func, 53284d7def2aSThomas Richter __u16 cmd_code, __u16 len, 53294d7def2aSThomas Richter enum qeth_prot_versions prot) 53304d7def2aSThomas Richter { 53314d7def2aSThomas Richter struct qeth_cmd_buffer *iob; 53324d7def2aSThomas Richter struct qeth_ipa_cmd *cmd; 53334d7def2aSThomas Richter 53344d7def2aSThomas Richter QETH_CARD_TEXT(card, 4, "getasscm"); 53354d7def2aSThomas Richter iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETASSPARMS, prot); 53364d7def2aSThomas Richter 53374d7def2aSThomas Richter if (iob) { 5338ff5caa7aSJulian Wiedmann cmd = __ipa_cmd(iob); 53394d7def2aSThomas Richter cmd->data.setassparms.hdr.assist_no = ipa_func; 53404d7def2aSThomas Richter cmd->data.setassparms.hdr.length = 8 + len; 53414d7def2aSThomas Richter cmd->data.setassparms.hdr.command_code = cmd_code; 53424d7def2aSThomas Richter } 53434d7def2aSThomas Richter 53444d7def2aSThomas Richter return iob; 53454d7def2aSThomas Richter } 5346b475e316SThomas Richter EXPORT_SYMBOL_GPL(qeth_get_setassparms_cmd); 53474d7def2aSThomas Richter 5348a8155b00SKittipon Meesompop int qeth_send_simple_setassparms_prot(struct qeth_card *card, 53494d7def2aSThomas Richter enum qeth_ipa_funcs ipa_func, 5350a8155b00SKittipon Meesompop u16 cmd_code, long data, 5351a8155b00SKittipon Meesompop enum qeth_prot_versions prot) 53524d7def2aSThomas Richter { 53534d7def2aSThomas Richter int length = 0; 53544d7def2aSThomas Richter struct qeth_cmd_buffer *iob; 53554d7def2aSThomas Richter 5356a8155b00SKittipon Meesompop QETH_CARD_TEXT_(card, 4, "simassp%i", prot); 53574d7def2aSThomas Richter if (data) 53584d7def2aSThomas Richter length = sizeof(__u32); 5359a8155b00SKittipon Meesompop iob = qeth_get_setassparms_cmd(card, ipa_func, cmd_code, length, prot); 53604d7def2aSThomas Richter if (!iob) 53614d7def2aSThomas Richter return -ENOMEM; 53624fa55fa9SJulian Wiedmann 53634fa55fa9SJulian Wiedmann __ipa_cmd(iob)->data.setassparms.data.flags_32bit = (__u32) data; 53644fa55fa9SJulian Wiedmann return qeth_send_ipa_cmd(card, iob, qeth_setassparms_cb, NULL); 53654d7def2aSThomas Richter } 5366a8155b00SKittipon Meesompop EXPORT_SYMBOL_GPL(qeth_send_simple_setassparms_prot); 53674d7def2aSThomas Richter 53684a71df50SFrank Blaschka static void qeth_unregister_dbf_views(void) 53694a71df50SFrank Blaschka { 5370d11ba0c4SPeter Tiedemann int x; 5371d11ba0c4SPeter Tiedemann for (x = 0; x < QETH_DBF_INFOS; x++) { 5372d11ba0c4SPeter Tiedemann debug_unregister(qeth_dbf[x].id); 5373d11ba0c4SPeter Tiedemann qeth_dbf[x].id = NULL; 5374d11ba0c4SPeter Tiedemann } 53754a71df50SFrank Blaschka } 53764a71df50SFrank Blaschka 53778e96c51cSCarsten Otte void qeth_dbf_longtext(debug_info_t *id, int level, char *fmt, ...) 5378cd023216SPeter Tiedemann { 5379cd023216SPeter Tiedemann char dbf_txt_buf[32]; 5380345aa66eSPeter Tiedemann va_list args; 5381cd023216SPeter Tiedemann 53828e6a8285SHendrik Brueckner if (!debug_level_enabled(id, level)) 5383cd023216SPeter Tiedemann return; 5384345aa66eSPeter Tiedemann va_start(args, fmt); 5385345aa66eSPeter Tiedemann vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args); 5386345aa66eSPeter Tiedemann va_end(args); 53878e96c51cSCarsten Otte debug_text_event(id, level, dbf_txt_buf); 5388cd023216SPeter Tiedemann } 5389cd023216SPeter Tiedemann EXPORT_SYMBOL_GPL(qeth_dbf_longtext); 5390cd023216SPeter Tiedemann 53914a71df50SFrank Blaschka static int qeth_register_dbf_views(void) 53924a71df50SFrank Blaschka { 5393d11ba0c4SPeter Tiedemann int ret; 5394d11ba0c4SPeter Tiedemann int x; 53954a71df50SFrank Blaschka 5396d11ba0c4SPeter Tiedemann for (x = 0; x < QETH_DBF_INFOS; x++) { 5397d11ba0c4SPeter Tiedemann /* register the areas */ 5398d11ba0c4SPeter Tiedemann qeth_dbf[x].id = debug_register(qeth_dbf[x].name, 5399d11ba0c4SPeter Tiedemann qeth_dbf[x].pages, 5400d11ba0c4SPeter Tiedemann qeth_dbf[x].areas, 5401d11ba0c4SPeter Tiedemann qeth_dbf[x].len); 5402d11ba0c4SPeter Tiedemann if (qeth_dbf[x].id == NULL) { 54034a71df50SFrank Blaschka qeth_unregister_dbf_views(); 54044a71df50SFrank Blaschka return -ENOMEM; 54054a71df50SFrank Blaschka } 54064a71df50SFrank Blaschka 5407d11ba0c4SPeter Tiedemann /* register a view */ 5408d11ba0c4SPeter Tiedemann ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view); 5409d11ba0c4SPeter Tiedemann if (ret) { 5410d11ba0c4SPeter Tiedemann qeth_unregister_dbf_views(); 5411d11ba0c4SPeter Tiedemann return ret; 5412d11ba0c4SPeter Tiedemann } 54134a71df50SFrank Blaschka 5414d11ba0c4SPeter Tiedemann /* set a passing level */ 5415d11ba0c4SPeter Tiedemann debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level); 5416d11ba0c4SPeter Tiedemann } 54174a71df50SFrank Blaschka 54184a71df50SFrank Blaschka return 0; 54194a71df50SFrank Blaschka } 54204a71df50SFrank Blaschka 5421a70fee3bSJulian Wiedmann static DEFINE_MUTEX(qeth_mod_mutex); /* for synchronized module loading */ 5422a70fee3bSJulian Wiedmann 54234a71df50SFrank Blaschka int qeth_core_load_discipline(struct qeth_card *card, 54244a71df50SFrank Blaschka enum qeth_discipline_id discipline) 54254a71df50SFrank Blaschka { 54262022e00cSFrank Blaschka mutex_lock(&qeth_mod_mutex); 54274a71df50SFrank Blaschka switch (discipline) { 54284a71df50SFrank Blaschka case QETH_DISCIPLINE_LAYER3: 5429c041f2d4SSebastian Ott card->discipline = try_then_request_module( 5430c041f2d4SSebastian Ott symbol_get(qeth_l3_discipline), "qeth_l3"); 54314a71df50SFrank Blaschka break; 54324a71df50SFrank Blaschka case QETH_DISCIPLINE_LAYER2: 5433c041f2d4SSebastian Ott card->discipline = try_then_request_module( 5434c041f2d4SSebastian Ott symbol_get(qeth_l2_discipline), "qeth_l2"); 54354a71df50SFrank Blaschka break; 5436c70eb09dSJulian Wiedmann default: 5437c70eb09dSJulian Wiedmann break; 54384a71df50SFrank Blaschka } 5439a70fee3bSJulian Wiedmann mutex_unlock(&qeth_mod_mutex); 5440c70eb09dSJulian Wiedmann 5441c041f2d4SSebastian Ott if (!card->discipline) { 544274eacdb9SFrank Blaschka dev_err(&card->gdev->dev, "There is no kernel module to " 544374eacdb9SFrank Blaschka "support discipline %d\n", discipline); 5444a70fee3bSJulian Wiedmann return -EINVAL; 54454a71df50SFrank Blaschka } 5446a70fee3bSJulian Wiedmann 5447c1a935f6SJulian Wiedmann card->options.layer = discipline; 5448a70fee3bSJulian Wiedmann return 0; 54494a71df50SFrank Blaschka } 54504a71df50SFrank Blaschka 54514a71df50SFrank Blaschka void qeth_core_free_discipline(struct qeth_card *card) 54524a71df50SFrank Blaschka { 54534fda3354SJulian Wiedmann if (IS_LAYER2(card)) 5454c041f2d4SSebastian Ott symbol_put(qeth_l2_discipline); 54554a71df50SFrank Blaschka else 5456c041f2d4SSebastian Ott symbol_put(qeth_l3_discipline); 5457c1a935f6SJulian Wiedmann card->options.layer = QETH_DISCIPLINE_UNDETERMINED; 5458c041f2d4SSebastian Ott card->discipline = NULL; 54594a71df50SFrank Blaschka } 54604a71df50SFrank Blaschka 54612d2ebb3eSJulian Wiedmann const struct device_type qeth_generic_devtype = { 5462b7169c51SSebastian Ott .name = "qeth_generic", 5463b7169c51SSebastian Ott .groups = qeth_generic_attr_groups, 5464b7169c51SSebastian Ott }; 54652d2ebb3eSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_generic_devtype); 54662d2ebb3eSJulian Wiedmann 5467b7169c51SSebastian Ott static const struct device_type qeth_osn_devtype = { 5468b7169c51SSebastian Ott .name = "qeth_osn", 5469b7169c51SSebastian Ott .groups = qeth_osn_attr_groups, 5470b7169c51SSebastian Ott }; 5471b7169c51SSebastian Ott 5472819dc537SStefan Raspl #define DBF_NAME_LEN 20 5473819dc537SStefan Raspl 5474819dc537SStefan Raspl struct qeth_dbf_entry { 5475819dc537SStefan Raspl char dbf_name[DBF_NAME_LEN]; 5476819dc537SStefan Raspl debug_info_t *dbf_info; 5477819dc537SStefan Raspl struct list_head dbf_list; 5478819dc537SStefan Raspl }; 5479819dc537SStefan Raspl 5480819dc537SStefan Raspl static LIST_HEAD(qeth_dbf_list); 5481819dc537SStefan Raspl static DEFINE_MUTEX(qeth_dbf_list_mutex); 5482819dc537SStefan Raspl 5483819dc537SStefan Raspl static debug_info_t *qeth_get_dbf_entry(char *name) 5484819dc537SStefan Raspl { 5485819dc537SStefan Raspl struct qeth_dbf_entry *entry; 5486819dc537SStefan Raspl debug_info_t *rc = NULL; 5487819dc537SStefan Raspl 5488819dc537SStefan Raspl mutex_lock(&qeth_dbf_list_mutex); 5489819dc537SStefan Raspl list_for_each_entry(entry, &qeth_dbf_list, dbf_list) { 5490819dc537SStefan Raspl if (strcmp(entry->dbf_name, name) == 0) { 5491819dc537SStefan Raspl rc = entry->dbf_info; 5492819dc537SStefan Raspl break; 5493819dc537SStefan Raspl } 5494819dc537SStefan Raspl } 5495819dc537SStefan Raspl mutex_unlock(&qeth_dbf_list_mutex); 5496819dc537SStefan Raspl return rc; 5497819dc537SStefan Raspl } 5498819dc537SStefan Raspl 5499819dc537SStefan Raspl static int qeth_add_dbf_entry(struct qeth_card *card, char *name) 5500819dc537SStefan Raspl { 5501819dc537SStefan Raspl struct qeth_dbf_entry *new_entry; 5502819dc537SStefan Raspl 5503819dc537SStefan Raspl card->debug = debug_register(name, 2, 1, 8); 5504819dc537SStefan Raspl if (!card->debug) { 5505819dc537SStefan Raspl QETH_DBF_TEXT_(SETUP, 2, "%s", "qcdbf"); 5506819dc537SStefan Raspl goto err; 5507819dc537SStefan Raspl } 5508819dc537SStefan Raspl if (debug_register_view(card->debug, &debug_hex_ascii_view)) 5509819dc537SStefan Raspl goto err_dbg; 5510819dc537SStefan Raspl new_entry = kzalloc(sizeof(struct qeth_dbf_entry), GFP_KERNEL); 5511819dc537SStefan Raspl if (!new_entry) 5512819dc537SStefan Raspl goto err_dbg; 5513819dc537SStefan Raspl strncpy(new_entry->dbf_name, name, DBF_NAME_LEN); 5514819dc537SStefan Raspl new_entry->dbf_info = card->debug; 5515819dc537SStefan Raspl mutex_lock(&qeth_dbf_list_mutex); 5516819dc537SStefan Raspl list_add(&new_entry->dbf_list, &qeth_dbf_list); 5517819dc537SStefan Raspl mutex_unlock(&qeth_dbf_list_mutex); 5518819dc537SStefan Raspl 5519819dc537SStefan Raspl return 0; 5520819dc537SStefan Raspl 5521819dc537SStefan Raspl err_dbg: 5522819dc537SStefan Raspl debug_unregister(card->debug); 5523819dc537SStefan Raspl err: 5524819dc537SStefan Raspl return -ENOMEM; 5525819dc537SStefan Raspl } 5526819dc537SStefan Raspl 5527819dc537SStefan Raspl static void qeth_clear_dbf_list(void) 5528819dc537SStefan Raspl { 5529819dc537SStefan Raspl struct qeth_dbf_entry *entry, *tmp; 5530819dc537SStefan Raspl 5531819dc537SStefan Raspl mutex_lock(&qeth_dbf_list_mutex); 5532819dc537SStefan Raspl list_for_each_entry_safe(entry, tmp, &qeth_dbf_list, dbf_list) { 5533819dc537SStefan Raspl list_del(&entry->dbf_list); 5534819dc537SStefan Raspl debug_unregister(entry->dbf_info); 5535819dc537SStefan Raspl kfree(entry); 5536819dc537SStefan Raspl } 5537819dc537SStefan Raspl mutex_unlock(&qeth_dbf_list_mutex); 5538819dc537SStefan Raspl } 5539819dc537SStefan Raspl 5540d3d1b205SJulian Wiedmann static struct net_device *qeth_alloc_netdev(struct qeth_card *card) 5541d3d1b205SJulian Wiedmann { 5542d3d1b205SJulian Wiedmann struct net_device *dev; 5543d3d1b205SJulian Wiedmann 5544d3d1b205SJulian Wiedmann switch (card->info.type) { 5545d3d1b205SJulian Wiedmann case QETH_CARD_TYPE_IQD: 55463a18d754SJulian Wiedmann dev = alloc_netdev_mqs(0, "hsi%d", NET_NAME_UNKNOWN, 55473a18d754SJulian Wiedmann ether_setup, QETH_MAX_QUEUES, 1); 5548d3d1b205SJulian Wiedmann break; 554973dc2dafSJulian Wiedmann case QETH_CARD_TYPE_OSM: 555073dc2dafSJulian Wiedmann dev = alloc_etherdev(0); 555173dc2dafSJulian Wiedmann break; 5552d3d1b205SJulian Wiedmann case QETH_CARD_TYPE_OSN: 5553d3d1b205SJulian Wiedmann dev = alloc_netdev(0, "osn%d", NET_NAME_UNKNOWN, ether_setup); 5554d3d1b205SJulian Wiedmann break; 5555d3d1b205SJulian Wiedmann default: 555673dc2dafSJulian Wiedmann dev = alloc_etherdev_mqs(0, QETH_MAX_QUEUES, 1); 5557d3d1b205SJulian Wiedmann } 5558d3d1b205SJulian Wiedmann 5559d3d1b205SJulian Wiedmann if (!dev) 5560d3d1b205SJulian Wiedmann return NULL; 5561d3d1b205SJulian Wiedmann 5562d3d1b205SJulian Wiedmann dev->ml_priv = card; 5563d3d1b205SJulian Wiedmann dev->watchdog_timeo = QETH_TX_TIMEOUT; 556472f219daSJulian Wiedmann dev->min_mtu = IS_OSN(card) ? 64 : 576; 55658ce7a9e0SJulian Wiedmann /* initialized when device first goes online: */ 55668ce7a9e0SJulian Wiedmann dev->max_mtu = 0; 55678ce7a9e0SJulian Wiedmann dev->mtu = 0; 5568d3d1b205SJulian Wiedmann SET_NETDEV_DEV(dev, &card->gdev->dev); 5569d3d1b205SJulian Wiedmann netif_carrier_off(dev); 55705f89eca5SJulian Wiedmann 5571d896ac62SJulian Wiedmann if (IS_OSN(card)) { 5572d896ac62SJulian Wiedmann dev->ethtool_ops = &qeth_osn_ethtool_ops; 5573d896ac62SJulian Wiedmann } else { 5574d896ac62SJulian Wiedmann dev->ethtool_ops = &qeth_ethtool_ops; 55755f89eca5SJulian Wiedmann dev->priv_flags &= ~IFF_TX_SKB_SHARING; 55765f89eca5SJulian Wiedmann dev->hw_features |= NETIF_F_SG; 55775f89eca5SJulian Wiedmann dev->vlan_features |= NETIF_F_SG; 55783a18d754SJulian Wiedmann if (IS_IQD(card)) { 55793a18d754SJulian Wiedmann netif_set_real_num_tx_queues(dev, QETH_IQD_MIN_TXQ); 558004db741dSJulian Wiedmann dev->features |= NETIF_F_SG; 55815f89eca5SJulian Wiedmann } 55823a18d754SJulian Wiedmann } 55835f89eca5SJulian Wiedmann 5584d3d1b205SJulian Wiedmann return dev; 5585d3d1b205SJulian Wiedmann } 5586d3d1b205SJulian Wiedmann 5587d3d1b205SJulian Wiedmann struct net_device *qeth_clone_netdev(struct net_device *orig) 5588d3d1b205SJulian Wiedmann { 5589d3d1b205SJulian Wiedmann struct net_device *clone = qeth_alloc_netdev(orig->ml_priv); 5590d3d1b205SJulian Wiedmann 5591d3d1b205SJulian Wiedmann if (!clone) 5592d3d1b205SJulian Wiedmann return NULL; 5593d3d1b205SJulian Wiedmann 5594d3d1b205SJulian Wiedmann clone->dev_port = orig->dev_port; 5595d3d1b205SJulian Wiedmann return clone; 5596d3d1b205SJulian Wiedmann } 5597d3d1b205SJulian Wiedmann 55984a71df50SFrank Blaschka static int qeth_core_probe_device(struct ccwgroup_device *gdev) 55994a71df50SFrank Blaschka { 56004a71df50SFrank Blaschka struct qeth_card *card; 56014a71df50SFrank Blaschka struct device *dev; 56024a71df50SFrank Blaschka int rc; 5603c70eb09dSJulian Wiedmann enum qeth_discipline_id enforced_disc; 5604819dc537SStefan Raspl char dbf_name[DBF_NAME_LEN]; 56054a71df50SFrank Blaschka 5606d11ba0c4SPeter Tiedemann QETH_DBF_TEXT(SETUP, 2, "probedev"); 56074a71df50SFrank Blaschka 56084a71df50SFrank Blaschka dev = &gdev->dev; 56094a71df50SFrank Blaschka if (!get_device(dev)) 56104a71df50SFrank Blaschka return -ENODEV; 56114a71df50SFrank Blaschka 56122a0217d5SKay Sievers QETH_DBF_TEXT_(SETUP, 2, "%s", dev_name(&gdev->dev)); 56134a71df50SFrank Blaschka 5614121ca39aSJulian Wiedmann card = qeth_alloc_card(gdev); 56154a71df50SFrank Blaschka if (!card) { 5616d11ba0c4SPeter Tiedemann QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM); 56174a71df50SFrank Blaschka rc = -ENOMEM; 56184a71df50SFrank Blaschka goto err_dev; 56194a71df50SFrank Blaschka } 5620af039068SCarsten Otte 5621af039068SCarsten Otte snprintf(dbf_name, sizeof(dbf_name), "qeth_card_%s", 5622af039068SCarsten Otte dev_name(&gdev->dev)); 5623819dc537SStefan Raspl card->debug = qeth_get_dbf_entry(dbf_name); 5624af039068SCarsten Otte if (!card->debug) { 5625819dc537SStefan Raspl rc = qeth_add_dbf_entry(card, dbf_name); 5626819dc537SStefan Raspl if (rc) 5627af039068SCarsten Otte goto err_card; 5628af039068SCarsten Otte } 5629af039068SCarsten Otte 563095f4d8b7SJulian Wiedmann qeth_setup_card(card); 5631d3d1b205SJulian Wiedmann card->dev = qeth_alloc_netdev(card); 5632778b1ac7SJulian Wiedmann if (!card->dev) { 5633778b1ac7SJulian Wiedmann rc = -ENOMEM; 5634d3d1b205SJulian Wiedmann goto err_card; 5635778b1ac7SJulian Wiedmann } 5636d3d1b205SJulian Wiedmann 563773dc2dafSJulian Wiedmann card->qdio.no_out_queues = card->dev->num_tx_queues; 563873dc2dafSJulian Wiedmann rc = qeth_update_from_chp_desc(card); 563973dc2dafSJulian Wiedmann if (rc) 564073dc2dafSJulian Wiedmann goto err_chp_desc; 5641c70eb09dSJulian Wiedmann qeth_determine_capabilities(card); 5642c70eb09dSJulian Wiedmann enforced_disc = qeth_enforce_discipline(card); 5643c70eb09dSJulian Wiedmann switch (enforced_disc) { 5644c70eb09dSJulian Wiedmann case QETH_DISCIPLINE_UNDETERMINED: 5645c70eb09dSJulian Wiedmann gdev->dev.type = &qeth_generic_devtype; 5646c70eb09dSJulian Wiedmann break; 5647c70eb09dSJulian Wiedmann default: 5648c70eb09dSJulian Wiedmann card->info.layer_enforced = true; 5649c70eb09dSJulian Wiedmann rc = qeth_core_load_discipline(card, enforced_disc); 56505113fec0SUrsula Braun if (rc) 5651d3d1b205SJulian Wiedmann goto err_load; 56522d2ebb3eSJulian Wiedmann 56532d2ebb3eSJulian Wiedmann gdev->dev.type = (card->info.type != QETH_CARD_TYPE_OSN) 56542d2ebb3eSJulian Wiedmann ? card->discipline->devtype 56552d2ebb3eSJulian Wiedmann : &qeth_osn_devtype; 5656c041f2d4SSebastian Ott rc = card->discipline->setup(card->gdev); 56575113fec0SUrsula Braun if (rc) 56585113fec0SUrsula Braun goto err_disc; 56592d2ebb3eSJulian Wiedmann break; 56604a71df50SFrank Blaschka } 56614a71df50SFrank Blaschka 56624a71df50SFrank Blaschka return 0; 56634a71df50SFrank Blaschka 56645113fec0SUrsula Braun err_disc: 56655113fec0SUrsula Braun qeth_core_free_discipline(card); 5666d3d1b205SJulian Wiedmann err_load: 5667a4cdc9baSJulian Wiedmann err_chp_desc: 566873dc2dafSJulian Wiedmann free_netdev(card->dev); 56694a71df50SFrank Blaschka err_card: 56704a71df50SFrank Blaschka qeth_core_free_card(card); 56714a71df50SFrank Blaschka err_dev: 56724a71df50SFrank Blaschka put_device(dev); 56734a71df50SFrank Blaschka return rc; 56744a71df50SFrank Blaschka } 56754a71df50SFrank Blaschka 56764a71df50SFrank Blaschka static void qeth_core_remove_device(struct ccwgroup_device *gdev) 56774a71df50SFrank Blaschka { 56784a71df50SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 56794a71df50SFrank Blaschka 568028a7e4c9SUrsula Braun QETH_DBF_TEXT(SETUP, 2, "removedv"); 56814a71df50SFrank Blaschka 5682c041f2d4SSebastian Ott if (card->discipline) { 5683c041f2d4SSebastian Ott card->discipline->remove(gdev); 56849dc48cccSUrsula Braun qeth_core_free_discipline(card); 56859dc48cccSUrsula Braun } 56869dc48cccSUrsula Braun 5687d3d1b205SJulian Wiedmann free_netdev(card->dev); 56884a71df50SFrank Blaschka qeth_core_free_card(card); 56894a71df50SFrank Blaschka put_device(&gdev->dev); 56904a71df50SFrank Blaschka } 56914a71df50SFrank Blaschka 56924a71df50SFrank Blaschka static int qeth_core_set_online(struct ccwgroup_device *gdev) 56934a71df50SFrank Blaschka { 56944a71df50SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 56954a71df50SFrank Blaschka int rc = 0; 5696c70eb09dSJulian Wiedmann enum qeth_discipline_id def_discipline; 56974a71df50SFrank Blaschka 5698c041f2d4SSebastian Ott if (!card->discipline) { 56994a71df50SFrank Blaschka if (card->info.type == QETH_CARD_TYPE_IQD) 57004a71df50SFrank Blaschka def_discipline = QETH_DISCIPLINE_LAYER3; 57014a71df50SFrank Blaschka else 57024a71df50SFrank Blaschka def_discipline = QETH_DISCIPLINE_LAYER2; 57034a71df50SFrank Blaschka rc = qeth_core_load_discipline(card, def_discipline); 57044a71df50SFrank Blaschka if (rc) 57054a71df50SFrank Blaschka goto err; 5706c041f2d4SSebastian Ott rc = card->discipline->setup(card->gdev); 57079111e788SUrsula Braun if (rc) { 57089111e788SUrsula Braun qeth_core_free_discipline(card); 57094a71df50SFrank Blaschka goto err; 57104a71df50SFrank Blaschka } 57119111e788SUrsula Braun } 5712c041f2d4SSebastian Ott rc = card->discipline->set_online(gdev); 57134a71df50SFrank Blaschka err: 57144a71df50SFrank Blaschka return rc; 57154a71df50SFrank Blaschka } 57164a71df50SFrank Blaschka 57174a71df50SFrank Blaschka static int qeth_core_set_offline(struct ccwgroup_device *gdev) 57184a71df50SFrank Blaschka { 57194a71df50SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 5720c041f2d4SSebastian Ott return card->discipline->set_offline(gdev); 57214a71df50SFrank Blaschka } 57224a71df50SFrank Blaschka 57234a71df50SFrank Blaschka static void qeth_core_shutdown(struct ccwgroup_device *gdev) 57244a71df50SFrank Blaschka { 57254a71df50SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 572696d1bb53SJulian Wiedmann qeth_set_allowed_threads(card, 0, 1); 572796d1bb53SJulian Wiedmann if ((gdev->state == CCWGROUP_ONLINE) && card->info.hwtrap) 572896d1bb53SJulian Wiedmann qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM); 572996d1bb53SJulian Wiedmann qeth_qdio_clear_card(card, 0); 573041c47da3SJulian Wiedmann qeth_drain_output_queues(card); 573196d1bb53SJulian Wiedmann qdio_free(CARD_DDEV(card)); 57324a71df50SFrank Blaschka } 57334a71df50SFrank Blaschka 5734bbcfcdc8SFrank Blaschka static int qeth_core_freeze(struct ccwgroup_device *gdev) 5735bbcfcdc8SFrank Blaschka { 5736bbcfcdc8SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 5737c041f2d4SSebastian Ott if (card->discipline && card->discipline->freeze) 5738c041f2d4SSebastian Ott return card->discipline->freeze(gdev); 5739bbcfcdc8SFrank Blaschka return 0; 5740bbcfcdc8SFrank Blaschka } 5741bbcfcdc8SFrank Blaschka 5742bbcfcdc8SFrank Blaschka static int qeth_core_thaw(struct ccwgroup_device *gdev) 5743bbcfcdc8SFrank Blaschka { 5744bbcfcdc8SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 5745c041f2d4SSebastian Ott if (card->discipline && card->discipline->thaw) 5746c041f2d4SSebastian Ott return card->discipline->thaw(gdev); 5747bbcfcdc8SFrank Blaschka return 0; 5748bbcfcdc8SFrank Blaschka } 5749bbcfcdc8SFrank Blaschka 5750bbcfcdc8SFrank Blaschka static int qeth_core_restore(struct ccwgroup_device *gdev) 5751bbcfcdc8SFrank Blaschka { 5752bbcfcdc8SFrank Blaschka struct qeth_card *card = dev_get_drvdata(&gdev->dev); 5753c041f2d4SSebastian Ott if (card->discipline && card->discipline->restore) 5754c041f2d4SSebastian Ott return card->discipline->restore(gdev); 5755bbcfcdc8SFrank Blaschka return 0; 5756bbcfcdc8SFrank Blaschka } 5757bbcfcdc8SFrank Blaschka 575836369569SGreg Kroah-Hartman static ssize_t group_store(struct device_driver *ddrv, const char *buf, 575936369569SGreg Kroah-Hartman size_t count) 57604a71df50SFrank Blaschka { 57614a71df50SFrank Blaschka int err; 57624a71df50SFrank Blaschka 57636d8769abSJulian Wiedmann err = ccwgroup_create_dev(qeth_core_root_dev, to_ccwgroupdrv(ddrv), 3, 57646d8769abSJulian Wiedmann buf); 5765b7169c51SSebastian Ott 5766b7169c51SSebastian Ott return err ? err : count; 5767b7169c51SSebastian Ott } 576836369569SGreg Kroah-Hartman static DRIVER_ATTR_WO(group); 57694a71df50SFrank Blaschka 5770f47e2256SSebastian Ott static struct attribute *qeth_drv_attrs[] = { 5771f47e2256SSebastian Ott &driver_attr_group.attr, 5772f47e2256SSebastian Ott NULL, 5773f47e2256SSebastian Ott }; 5774f47e2256SSebastian Ott static struct attribute_group qeth_drv_attr_group = { 5775f47e2256SSebastian Ott .attrs = qeth_drv_attrs, 5776f47e2256SSebastian Ott }; 5777f47e2256SSebastian Ott static const struct attribute_group *qeth_drv_attr_groups[] = { 5778f47e2256SSebastian Ott &qeth_drv_attr_group, 5779f47e2256SSebastian Ott NULL, 5780f47e2256SSebastian Ott }; 5781f47e2256SSebastian Ott 57826d8769abSJulian Wiedmann static struct ccwgroup_driver qeth_core_ccwgroup_driver = { 57836d8769abSJulian Wiedmann .driver = { 57846d8769abSJulian Wiedmann .groups = qeth_drv_attr_groups, 57856d8769abSJulian Wiedmann .owner = THIS_MODULE, 57866d8769abSJulian Wiedmann .name = "qeth", 57876d8769abSJulian Wiedmann }, 57886d8769abSJulian Wiedmann .ccw_driver = &qeth_ccw_driver, 57896d8769abSJulian Wiedmann .setup = qeth_core_probe_device, 57906d8769abSJulian Wiedmann .remove = qeth_core_remove_device, 57916d8769abSJulian Wiedmann .set_online = qeth_core_set_online, 57926d8769abSJulian Wiedmann .set_offline = qeth_core_set_offline, 57936d8769abSJulian Wiedmann .shutdown = qeth_core_shutdown, 57946d8769abSJulian Wiedmann .prepare = NULL, 57956d8769abSJulian Wiedmann .complete = NULL, 57966d8769abSJulian Wiedmann .freeze = qeth_core_freeze, 57976d8769abSJulian Wiedmann .thaw = qeth_core_thaw, 57986d8769abSJulian Wiedmann .restore = qeth_core_restore, 57996d8769abSJulian Wiedmann }; 58006d8769abSJulian Wiedmann 5801d7d18da1SJulian Wiedmann struct qeth_card *qeth_get_card_by_busid(char *bus_id) 5802d7d18da1SJulian Wiedmann { 5803d7d18da1SJulian Wiedmann struct ccwgroup_device *gdev; 5804d7d18da1SJulian Wiedmann struct qeth_card *card; 5805d7d18da1SJulian Wiedmann 5806d7d18da1SJulian Wiedmann gdev = get_ccwgroupdev_by_busid(&qeth_core_ccwgroup_driver, bus_id); 5807d7d18da1SJulian Wiedmann if (!gdev) 5808d7d18da1SJulian Wiedmann return NULL; 5809d7d18da1SJulian Wiedmann 5810d7d18da1SJulian Wiedmann card = dev_get_drvdata(&gdev->dev); 5811d7d18da1SJulian Wiedmann put_device(&gdev->dev); 5812d7d18da1SJulian Wiedmann return card; 5813d7d18da1SJulian Wiedmann } 5814d7d18da1SJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_get_card_by_busid); 5815d7d18da1SJulian Wiedmann 5816942d6984SJulian Wiedmann int qeth_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) 5817942d6984SJulian Wiedmann { 5818942d6984SJulian Wiedmann struct qeth_card *card = dev->ml_priv; 5819942d6984SJulian Wiedmann struct mii_ioctl_data *mii_data; 5820942d6984SJulian Wiedmann int rc = 0; 5821942d6984SJulian Wiedmann 5822942d6984SJulian Wiedmann if (!card) 5823942d6984SJulian Wiedmann return -ENODEV; 5824942d6984SJulian Wiedmann 5825942d6984SJulian Wiedmann switch (cmd) { 5826942d6984SJulian Wiedmann case SIOC_QETH_ADP_SET_SNMP_CONTROL: 5827942d6984SJulian Wiedmann rc = qeth_snmp_command(card, rq->ifr_ifru.ifru_data); 5828942d6984SJulian Wiedmann break; 5829942d6984SJulian Wiedmann case SIOC_QETH_GET_CARD_TYPE: 5830942d6984SJulian Wiedmann if ((card->info.type == QETH_CARD_TYPE_OSD || 5831942d6984SJulian Wiedmann card->info.type == QETH_CARD_TYPE_OSM || 5832942d6984SJulian Wiedmann card->info.type == QETH_CARD_TYPE_OSX) && 5833942d6984SJulian Wiedmann !card->info.guestlan) 5834942d6984SJulian Wiedmann return 1; 5835942d6984SJulian Wiedmann else 5836942d6984SJulian Wiedmann return 0; 5837942d6984SJulian Wiedmann case SIOCGMIIPHY: 5838942d6984SJulian Wiedmann mii_data = if_mii(rq); 5839942d6984SJulian Wiedmann mii_data->phy_id = 0; 5840942d6984SJulian Wiedmann break; 5841942d6984SJulian Wiedmann case SIOCGMIIREG: 5842942d6984SJulian Wiedmann mii_data = if_mii(rq); 5843942d6984SJulian Wiedmann if (mii_data->phy_id != 0) 5844942d6984SJulian Wiedmann rc = -EINVAL; 5845942d6984SJulian Wiedmann else 5846942d6984SJulian Wiedmann mii_data->val_out = qeth_mdio_read(dev, 5847942d6984SJulian Wiedmann mii_data->phy_id, mii_data->reg_num); 5848942d6984SJulian Wiedmann break; 5849942d6984SJulian Wiedmann case SIOC_QETH_QUERY_OAT: 5850942d6984SJulian Wiedmann rc = qeth_query_oat_command(card, rq->ifr_ifru.ifru_data); 5851942d6984SJulian Wiedmann break; 5852942d6984SJulian Wiedmann default: 5853942d6984SJulian Wiedmann if (card->discipline->do_ioctl) 5854942d6984SJulian Wiedmann rc = card->discipline->do_ioctl(dev, rq, cmd); 5855942d6984SJulian Wiedmann else 5856942d6984SJulian Wiedmann rc = -EOPNOTSUPP; 5857942d6984SJulian Wiedmann } 5858942d6984SJulian Wiedmann if (rc) 5859942d6984SJulian Wiedmann QETH_CARD_TEXT_(card, 2, "ioce%x", rc); 5860942d6984SJulian Wiedmann return rc; 5861942d6984SJulian Wiedmann } 5862942d6984SJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_do_ioctl); 5863942d6984SJulian Wiedmann 58644386e34fSJulian Wiedmann static int qeth_start_csum_cb(struct qeth_card *card, struct qeth_reply *reply, 5865c9475369SThomas Richter unsigned long data) 5866c9475369SThomas Richter { 5867c9475369SThomas Richter struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 58684386e34fSJulian Wiedmann u32 *features = reply->param; 5869c9475369SThomas Richter 5870ad3cbf61SJulian Wiedmann if (qeth_setassparms_inspect_rc(cmd)) 5871742d4d40SJulian Wiedmann return -EIO; 5872c9475369SThomas Richter 58734386e34fSJulian Wiedmann *features = cmd->data.setassparms.data.flags_32bit; 5874c9475369SThomas Richter return 0; 5875c9475369SThomas Richter } 5876c9475369SThomas Richter 58774386e34fSJulian Wiedmann static int qeth_set_csum_off(struct qeth_card *card, enum qeth_ipa_funcs cstype, 5878a8155b00SKittipon Meesompop enum qeth_prot_versions prot) 5879c9475369SThomas Richter { 58804386e34fSJulian Wiedmann return qeth_send_simple_setassparms_prot(card, cstype, 58814386e34fSJulian Wiedmann IPA_CMD_ASS_STOP, 0, prot); 5882c9475369SThomas Richter } 5883c9475369SThomas Richter 58844386e34fSJulian Wiedmann static int qeth_set_csum_on(struct qeth_card *card, enum qeth_ipa_funcs cstype, 5885a8155b00SKittipon Meesompop enum qeth_prot_versions prot) 58864d7def2aSThomas Richter { 5887571f9dd8SKittipon Meesompop u32 required_features = QETH_IPA_CHECKSUM_UDP | QETH_IPA_CHECKSUM_TCP; 58884386e34fSJulian Wiedmann struct qeth_cmd_buffer *iob; 58894386e34fSJulian Wiedmann struct qeth_ipa_caps caps; 58904386e34fSJulian Wiedmann u32 features; 58914d7def2aSThomas Richter int rc; 58924d7def2aSThomas Richter 58937e83747dSJulian Wiedmann /* some L3 HW requires combined L3+L4 csum offload: */ 58947e83747dSJulian Wiedmann if (IS_LAYER3(card) && prot == QETH_PROT_IPV4 && 58957e83747dSJulian Wiedmann cstype == IPA_OUTBOUND_CHECKSUM) 5896571f9dd8SKittipon Meesompop required_features |= QETH_IPA_CHECKSUM_IP_HDR; 58977e83747dSJulian Wiedmann 58984386e34fSJulian Wiedmann iob = qeth_get_setassparms_cmd(card, cstype, IPA_CMD_ASS_START, 0, 5899a8155b00SKittipon Meesompop prot); 59004386e34fSJulian Wiedmann if (!iob) 59014386e34fSJulian Wiedmann return -ENOMEM; 59024386e34fSJulian Wiedmann 59034386e34fSJulian Wiedmann rc = qeth_send_ipa_cmd(card, iob, qeth_start_csum_cb, &features); 59044386e34fSJulian Wiedmann if (rc) 59054d7def2aSThomas Richter return rc; 59064386e34fSJulian Wiedmann 59074386e34fSJulian Wiedmann if ((required_features & features) != required_features) { 59084386e34fSJulian Wiedmann qeth_set_csum_off(card, cstype, prot); 59094386e34fSJulian Wiedmann return -EOPNOTSUPP; 59104386e34fSJulian Wiedmann } 59114386e34fSJulian Wiedmann 59124386e34fSJulian Wiedmann iob = qeth_get_setassparms_cmd(card, cstype, IPA_CMD_ASS_ENABLE, 4, 59134386e34fSJulian Wiedmann prot); 59144386e34fSJulian Wiedmann if (!iob) { 59154386e34fSJulian Wiedmann qeth_set_csum_off(card, cstype, prot); 59164386e34fSJulian Wiedmann return -ENOMEM; 59174386e34fSJulian Wiedmann } 59184386e34fSJulian Wiedmann 59194386e34fSJulian Wiedmann if (features & QETH_IPA_CHECKSUM_LP2LP) 59204386e34fSJulian Wiedmann required_features |= QETH_IPA_CHECKSUM_LP2LP; 59214386e34fSJulian Wiedmann __ipa_cmd(iob)->data.setassparms.data.flags_32bit = required_features; 59224386e34fSJulian Wiedmann rc = qeth_send_ipa_cmd(card, iob, qeth_setassparms_get_caps_cb, &caps); 59234386e34fSJulian Wiedmann if (rc) { 59244386e34fSJulian Wiedmann qeth_set_csum_off(card, cstype, prot); 59254386e34fSJulian Wiedmann return rc; 59264386e34fSJulian Wiedmann } 59274386e34fSJulian Wiedmann 59284386e34fSJulian Wiedmann if (!qeth_ipa_caps_supported(&caps, required_features) || 59294386e34fSJulian Wiedmann !qeth_ipa_caps_enabled(&caps, required_features)) { 59304386e34fSJulian Wiedmann qeth_set_csum_off(card, cstype, prot); 59314386e34fSJulian Wiedmann return -EOPNOTSUPP; 59324d7def2aSThomas Richter } 59338f43fb00SThomas Richter 5934a8155b00SKittipon Meesompop dev_info(&card->gdev->dev, "HW Checksumming (%sbound IPv%d) enabled\n", 5935a8155b00SKittipon Meesompop cstype == IPA_INBOUND_CHECKSUM ? "in" : "out", prot); 59364386e34fSJulian Wiedmann if (!qeth_ipa_caps_enabled(&caps, QETH_IPA_CHECKSUM_LP2LP) && 59374386e34fSJulian Wiedmann cstype == IPA_OUTBOUND_CHECKSUM) 59384386e34fSJulian Wiedmann dev_warn(&card->gdev->dev, 59394386e34fSJulian Wiedmann "Hardware checksumming is performed only if %s and its peer use different OSA Express 3 ports\n", 59404386e34fSJulian Wiedmann QETH_CARD_IFNAME(card)); 59414d7def2aSThomas Richter return 0; 59424d7def2aSThomas Richter } 59434d7def2aSThomas Richter 5944a8155b00SKittipon Meesompop static int qeth_set_ipa_csum(struct qeth_card *card, bool on, int cstype, 5945a8155b00SKittipon Meesompop enum qeth_prot_versions prot) 59464d7def2aSThomas Richter { 5947742d4d40SJulian Wiedmann return on ? qeth_set_csum_on(card, cstype, prot) : 59484386e34fSJulian Wiedmann qeth_set_csum_off(card, cstype, prot); 59494d7def2aSThomas Richter } 59504d7def2aSThomas Richter 59514666d7fbSJulian Wiedmann static int qeth_start_tso_cb(struct qeth_card *card, struct qeth_reply *reply, 59524666d7fbSJulian Wiedmann unsigned long data) 59534666d7fbSJulian Wiedmann { 59544666d7fbSJulian Wiedmann struct qeth_ipa_cmd *cmd = (struct qeth_ipa_cmd *) data; 59554666d7fbSJulian Wiedmann struct qeth_tso_start_data *tso_data = reply->param; 59564666d7fbSJulian Wiedmann 59574666d7fbSJulian Wiedmann if (qeth_setassparms_inspect_rc(cmd)) 5958742d4d40SJulian Wiedmann return -EIO; 59594666d7fbSJulian Wiedmann 59604666d7fbSJulian Wiedmann tso_data->mss = cmd->data.setassparms.data.tso.mss; 59614666d7fbSJulian Wiedmann tso_data->supported = cmd->data.setassparms.data.tso.supported; 59624666d7fbSJulian Wiedmann return 0; 59634666d7fbSJulian Wiedmann } 59644666d7fbSJulian Wiedmann 59651f83b817SJulian Wiedmann static int qeth_set_tso_off(struct qeth_card *card, 59661f83b817SJulian Wiedmann enum qeth_prot_versions prot) 59674d7def2aSThomas Richter { 59681f83b817SJulian Wiedmann return qeth_send_simple_setassparms_prot(card, IPA_OUTBOUND_TSO, 59691f83b817SJulian Wiedmann IPA_CMD_ASS_STOP, 0, prot); 59708f43fb00SThomas Richter } 59711f83b817SJulian Wiedmann 59721f83b817SJulian Wiedmann static int qeth_set_tso_on(struct qeth_card *card, 59731f83b817SJulian Wiedmann enum qeth_prot_versions prot) 59741f83b817SJulian Wiedmann { 59754666d7fbSJulian Wiedmann struct qeth_tso_start_data tso_data; 59764666d7fbSJulian Wiedmann struct qeth_cmd_buffer *iob; 59774666d7fbSJulian Wiedmann struct qeth_ipa_caps caps; 59784666d7fbSJulian Wiedmann int rc; 59794666d7fbSJulian Wiedmann 59804666d7fbSJulian Wiedmann iob = qeth_get_setassparms_cmd(card, IPA_OUTBOUND_TSO, 59811f83b817SJulian Wiedmann IPA_CMD_ASS_START, 0, prot); 59824666d7fbSJulian Wiedmann if (!iob) 59834666d7fbSJulian Wiedmann return -ENOMEM; 59844666d7fbSJulian Wiedmann 59854fa55fa9SJulian Wiedmann rc = qeth_send_ipa_cmd(card, iob, qeth_start_tso_cb, &tso_data); 59864666d7fbSJulian Wiedmann if (rc) 59874666d7fbSJulian Wiedmann return rc; 59884666d7fbSJulian Wiedmann 59894666d7fbSJulian Wiedmann if (!tso_data.mss || !(tso_data.supported & QETH_IPA_LARGE_SEND_TCP)) { 59904666d7fbSJulian Wiedmann qeth_set_tso_off(card, prot); 59914666d7fbSJulian Wiedmann return -EOPNOTSUPP; 59924666d7fbSJulian Wiedmann } 59934666d7fbSJulian Wiedmann 59944666d7fbSJulian Wiedmann iob = qeth_get_setassparms_cmd(card, IPA_OUTBOUND_TSO, 59954666d7fbSJulian Wiedmann IPA_CMD_ASS_ENABLE, sizeof(caps), prot); 59964666d7fbSJulian Wiedmann if (!iob) { 59974666d7fbSJulian Wiedmann qeth_set_tso_off(card, prot); 59984666d7fbSJulian Wiedmann return -ENOMEM; 59994666d7fbSJulian Wiedmann } 60004666d7fbSJulian Wiedmann 60014666d7fbSJulian Wiedmann /* enable TSO capability */ 60024fa55fa9SJulian Wiedmann __ipa_cmd(iob)->data.setassparms.data.caps.enabled = 60034fa55fa9SJulian Wiedmann QETH_IPA_LARGE_SEND_TCP; 60044fa55fa9SJulian Wiedmann rc = qeth_send_ipa_cmd(card, iob, qeth_setassparms_get_caps_cb, &caps); 60054666d7fbSJulian Wiedmann if (rc) { 60064666d7fbSJulian Wiedmann qeth_set_tso_off(card, prot); 60074666d7fbSJulian Wiedmann return rc; 60084666d7fbSJulian Wiedmann } 60094666d7fbSJulian Wiedmann 60104666d7fbSJulian Wiedmann if (!qeth_ipa_caps_supported(&caps, QETH_IPA_LARGE_SEND_TCP) || 60114666d7fbSJulian Wiedmann !qeth_ipa_caps_enabled(&caps, QETH_IPA_LARGE_SEND_TCP)) { 60124666d7fbSJulian Wiedmann qeth_set_tso_off(card, prot); 60134666d7fbSJulian Wiedmann return -EOPNOTSUPP; 60144666d7fbSJulian Wiedmann } 60154666d7fbSJulian Wiedmann 60164666d7fbSJulian Wiedmann dev_info(&card->gdev->dev, "TSOv%u enabled (MSS: %u)\n", prot, 60174666d7fbSJulian Wiedmann tso_data.mss); 60184666d7fbSJulian Wiedmann return 0; 60198f43fb00SThomas Richter } 60201f83b817SJulian Wiedmann 60211f83b817SJulian Wiedmann static int qeth_set_ipa_tso(struct qeth_card *card, bool on, 60221f83b817SJulian Wiedmann enum qeth_prot_versions prot) 60231f83b817SJulian Wiedmann { 6024742d4d40SJulian Wiedmann return on ? qeth_set_tso_on(card, prot) : qeth_set_tso_off(card, prot); 60254d7def2aSThomas Richter } 60268f43fb00SThomas Richter 6027d7e6ed97SKittipon Meesompop static int qeth_set_ipa_rx_csum(struct qeth_card *card, bool on) 6028d7e6ed97SKittipon Meesompop { 6029d7e6ed97SKittipon Meesompop int rc_ipv4 = (on) ? -EOPNOTSUPP : 0; 6030d7e6ed97SKittipon Meesompop int rc_ipv6; 6031ce344356SJulian Wiedmann 6032d7e6ed97SKittipon Meesompop if (qeth_is_supported(card, IPA_INBOUND_CHECKSUM)) 6033d7e6ed97SKittipon Meesompop rc_ipv4 = qeth_set_ipa_csum(card, on, IPA_INBOUND_CHECKSUM, 6034d7e6ed97SKittipon Meesompop QETH_PROT_IPV4); 6035d7e6ed97SKittipon Meesompop if (!qeth_is_supported6(card, IPA_INBOUND_CHECKSUM_V6)) 6036d7e6ed97SKittipon Meesompop /* no/one Offload Assist available, so the rc is trivial */ 6037d7e6ed97SKittipon Meesompop return rc_ipv4; 6038d7e6ed97SKittipon Meesompop 6039d7e6ed97SKittipon Meesompop rc_ipv6 = qeth_set_ipa_csum(card, on, IPA_INBOUND_CHECKSUM, 6040d7e6ed97SKittipon Meesompop QETH_PROT_IPV6); 6041d7e6ed97SKittipon Meesompop 6042d7e6ed97SKittipon Meesompop if (on) 6043d7e6ed97SKittipon Meesompop /* enable: success if any Assist is active */ 6044d7e6ed97SKittipon Meesompop return (rc_ipv6) ? rc_ipv4 : 0; 6045d7e6ed97SKittipon Meesompop 6046d7e6ed97SKittipon Meesompop /* disable: failure if any Assist is still active */ 6047d7e6ed97SKittipon Meesompop return (rc_ipv6) ? rc_ipv6 : rc_ipv4; 6048d7e6ed97SKittipon Meesompop } 6049d7e6ed97SKittipon Meesompop 6050ce344356SJulian Wiedmann /** 6051d025da9eSJulian Wiedmann * qeth_enable_hw_features() - (Re-)Enable HW functions for device features 6052d025da9eSJulian Wiedmann * @dev: a net_device 6053ce344356SJulian Wiedmann */ 6054d025da9eSJulian Wiedmann void qeth_enable_hw_features(struct net_device *dev) 6055e830baa9SHans Wippel { 6056e830baa9SHans Wippel struct qeth_card *card = dev->ml_priv; 6057d025da9eSJulian Wiedmann netdev_features_t features; 6058e830baa9SHans Wippel 6059d025da9eSJulian Wiedmann features = dev->features; 60605fc692a7SJulian Wiedmann /* force-off any feature that might need an IPA sequence. 6061ce344356SJulian Wiedmann * netdev_update_features() will restart them. 6062ce344356SJulian Wiedmann */ 60635fc692a7SJulian Wiedmann dev->features &= ~dev->hw_features; 60645fc692a7SJulian Wiedmann /* toggle VLAN filter, so that VIDs are re-programmed: */ 60655fc692a7SJulian Wiedmann if (IS_LAYER2(card) && IS_VM_NIC(card)) { 60665fc692a7SJulian Wiedmann dev->features &= ~NETIF_F_HW_VLAN_CTAG_FILTER; 60675fc692a7SJulian Wiedmann dev->wanted_features |= NETIF_F_HW_VLAN_CTAG_FILTER; 60685fc692a7SJulian Wiedmann } 6069ce344356SJulian Wiedmann netdev_update_features(dev); 6070d025da9eSJulian Wiedmann if (features != dev->features) 6071e830baa9SHans Wippel dev_warn(&card->gdev->dev, 6072e830baa9SHans Wippel "Device recovery failed to restore all offload features\n"); 6073e830baa9SHans Wippel } 6074d025da9eSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_enable_hw_features); 6075e830baa9SHans Wippel 60768f43fb00SThomas Richter int qeth_set_features(struct net_device *dev, netdev_features_t features) 60778f43fb00SThomas Richter { 60788f43fb00SThomas Richter struct qeth_card *card = dev->ml_priv; 60796c7cd712SHans Wippel netdev_features_t changed = dev->features ^ features; 60808f43fb00SThomas Richter int rc = 0; 60818f43fb00SThomas Richter 60828f43fb00SThomas Richter QETH_DBF_TEXT(SETUP, 2, "setfeat"); 60838f43fb00SThomas Richter QETH_DBF_HEX(SETUP, 2, &features, sizeof(features)); 60848f43fb00SThomas Richter 60856c7cd712SHans Wippel if ((changed & NETIF_F_IP_CSUM)) { 6086a8155b00SKittipon Meesompop rc = qeth_set_ipa_csum(card, features & NETIF_F_IP_CSUM, 6087a8155b00SKittipon Meesompop IPA_OUTBOUND_CHECKSUM, QETH_PROT_IPV4); 60886c7cd712SHans Wippel if (rc) 60896c7cd712SHans Wippel changed ^= NETIF_F_IP_CSUM; 60906c7cd712SHans Wippel } 6091571f9dd8SKittipon Meesompop if (changed & NETIF_F_IPV6_CSUM) { 6092571f9dd8SKittipon Meesompop rc = qeth_set_ipa_csum(card, features & NETIF_F_IPV6_CSUM, 6093571f9dd8SKittipon Meesompop IPA_OUTBOUND_CHECKSUM, QETH_PROT_IPV6); 6094571f9dd8SKittipon Meesompop if (rc) 6095571f9dd8SKittipon Meesompop changed ^= NETIF_F_IPV6_CSUM; 6096571f9dd8SKittipon Meesompop } 6097d7e6ed97SKittipon Meesompop if (changed & NETIF_F_RXCSUM) { 6098d7e6ed97SKittipon Meesompop rc = qeth_set_ipa_rx_csum(card, features & NETIF_F_RXCSUM); 60996c7cd712SHans Wippel if (rc) 61006c7cd712SHans Wippel changed ^= NETIF_F_RXCSUM; 61016c7cd712SHans Wippel } 61021f83b817SJulian Wiedmann if (changed & NETIF_F_TSO) { 61031f83b817SJulian Wiedmann rc = qeth_set_ipa_tso(card, features & NETIF_F_TSO, 61041f83b817SJulian Wiedmann QETH_PROT_IPV4); 61056c7cd712SHans Wippel if (rc) 61066c7cd712SHans Wippel changed ^= NETIF_F_TSO; 61076c7cd712SHans Wippel } 610882bf5c08SJulian Wiedmann if (changed & NETIF_F_TSO6) { 610982bf5c08SJulian Wiedmann rc = qeth_set_ipa_tso(card, features & NETIF_F_TSO6, 611082bf5c08SJulian Wiedmann QETH_PROT_IPV6); 611182bf5c08SJulian Wiedmann if (rc) 611282bf5c08SJulian Wiedmann changed ^= NETIF_F_TSO6; 611382bf5c08SJulian Wiedmann } 61146c7cd712SHans Wippel 61156c7cd712SHans Wippel /* everything changed successfully? */ 61166c7cd712SHans Wippel if ((dev->features ^ features) == changed) 61176c7cd712SHans Wippel return 0; 61186c7cd712SHans Wippel /* something went wrong. save changed features and return error */ 61196c7cd712SHans Wippel dev->features ^= changed; 61206c7cd712SHans Wippel return -EIO; 61218f43fb00SThomas Richter } 61228f43fb00SThomas Richter EXPORT_SYMBOL_GPL(qeth_set_features); 61238f43fb00SThomas Richter 61248f43fb00SThomas Richter netdev_features_t qeth_fix_features(struct net_device *dev, 61258f43fb00SThomas Richter netdev_features_t features) 61268f43fb00SThomas Richter { 61278f43fb00SThomas Richter struct qeth_card *card = dev->ml_priv; 61288f43fb00SThomas Richter 61298f43fb00SThomas Richter QETH_DBF_TEXT(SETUP, 2, "fixfeat"); 61308f43fb00SThomas Richter if (!qeth_is_supported(card, IPA_OUTBOUND_CHECKSUM)) 61318f43fb00SThomas Richter features &= ~NETIF_F_IP_CSUM; 6132571f9dd8SKittipon Meesompop if (!qeth_is_supported6(card, IPA_OUTBOUND_CHECKSUM_V6)) 6133571f9dd8SKittipon Meesompop features &= ~NETIF_F_IPV6_CSUM; 6134d7e6ed97SKittipon Meesompop if (!qeth_is_supported(card, IPA_INBOUND_CHECKSUM) && 6135d7e6ed97SKittipon Meesompop !qeth_is_supported6(card, IPA_INBOUND_CHECKSUM_V6)) 61368f43fb00SThomas Richter features &= ~NETIF_F_RXCSUM; 6137cf536ffeSJulian Wiedmann if (!qeth_is_supported(card, IPA_OUTBOUND_TSO)) 61388f43fb00SThomas Richter features &= ~NETIF_F_TSO; 613982bf5c08SJulian Wiedmann if (!qeth_is_supported6(card, IPA_OUTBOUND_TSO)) 614082bf5c08SJulian Wiedmann features &= ~NETIF_F_TSO6; 6141e6e771b3SJulian Wiedmann 61428f43fb00SThomas Richter QETH_DBF_HEX(SETUP, 2, &features, sizeof(features)); 61438f43fb00SThomas Richter return features; 61448f43fb00SThomas Richter } 61458f43fb00SThomas Richter EXPORT_SYMBOL_GPL(qeth_fix_features); 61464d7def2aSThomas Richter 61476d69b1f1SJulian Wiedmann netdev_features_t qeth_features_check(struct sk_buff *skb, 61486d69b1f1SJulian Wiedmann struct net_device *dev, 61496d69b1f1SJulian Wiedmann netdev_features_t features) 61506d69b1f1SJulian Wiedmann { 61516d69b1f1SJulian Wiedmann /* GSO segmentation builds skbs with 61526d69b1f1SJulian Wiedmann * a (small) linear part for the headers, and 61536d69b1f1SJulian Wiedmann * page frags for the data. 61546d69b1f1SJulian Wiedmann * Compared to a linear skb, the header-only part consumes an 61556d69b1f1SJulian Wiedmann * additional buffer element. This reduces buffer utilization, and 61566d69b1f1SJulian Wiedmann * hurts throughput. So compress small segments into one element. 61576d69b1f1SJulian Wiedmann */ 61586d69b1f1SJulian Wiedmann if (netif_needs_gso(skb, features)) { 61596d69b1f1SJulian Wiedmann /* match skb_segment(): */ 61606d69b1f1SJulian Wiedmann unsigned int doffset = skb->data - skb_mac_header(skb); 61616d69b1f1SJulian Wiedmann unsigned int hsize = skb_shinfo(skb)->gso_size; 61626d69b1f1SJulian Wiedmann unsigned int hroom = skb_headroom(skb); 61636d69b1f1SJulian Wiedmann 61646d69b1f1SJulian Wiedmann /* linearize only if resulting skb allocations are order-0: */ 61656d69b1f1SJulian Wiedmann if (SKB_DATA_ALIGN(hroom + doffset + hsize) <= SKB_MAX_HEAD(0)) 61666d69b1f1SJulian Wiedmann features &= ~NETIF_F_SG; 61676d69b1f1SJulian Wiedmann } 61686d69b1f1SJulian Wiedmann 61696d69b1f1SJulian Wiedmann return vlan_features_check(skb, features); 61706d69b1f1SJulian Wiedmann } 61716d69b1f1SJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_features_check); 61726d69b1f1SJulian Wiedmann 6173b0abc4f5SJulian Wiedmann void qeth_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) 6174b0abc4f5SJulian Wiedmann { 6175b0abc4f5SJulian Wiedmann struct qeth_card *card = dev->ml_priv; 6176b0abc4f5SJulian Wiedmann struct qeth_qdio_out_q *queue; 6177b0abc4f5SJulian Wiedmann unsigned int i; 6178b0abc4f5SJulian Wiedmann 6179b0abc4f5SJulian Wiedmann QETH_CARD_TEXT(card, 5, "getstat"); 6180b0abc4f5SJulian Wiedmann 6181b0abc4f5SJulian Wiedmann stats->rx_packets = card->stats.rx_packets; 6182b0abc4f5SJulian Wiedmann stats->rx_bytes = card->stats.rx_bytes; 6183b0abc4f5SJulian Wiedmann stats->rx_errors = card->stats.rx_errors; 6184b0abc4f5SJulian Wiedmann stats->rx_dropped = card->stats.rx_dropped; 6185b0abc4f5SJulian Wiedmann stats->multicast = card->stats.rx_multicast; 6186b0abc4f5SJulian Wiedmann 6187b0abc4f5SJulian Wiedmann for (i = 0; i < card->qdio.no_out_queues; i++) { 6188b0abc4f5SJulian Wiedmann queue = card->qdio.out_qs[i]; 6189b0abc4f5SJulian Wiedmann 6190b0abc4f5SJulian Wiedmann stats->tx_packets += queue->stats.tx_packets; 6191b0abc4f5SJulian Wiedmann stats->tx_bytes += queue->stats.tx_bytes; 6192b0abc4f5SJulian Wiedmann stats->tx_errors += queue->stats.tx_errors; 6193b0abc4f5SJulian Wiedmann stats->tx_dropped += queue->stats.tx_dropped; 6194b0abc4f5SJulian Wiedmann } 6195b0abc4f5SJulian Wiedmann } 6196b0abc4f5SJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_get_stats64); 6197b0abc4f5SJulian Wiedmann 61983a18d754SJulian Wiedmann u16 qeth_iqd_select_queue(struct net_device *dev, struct sk_buff *skb, 61993a18d754SJulian Wiedmann u8 cast_type, struct net_device *sb_dev) 62003a18d754SJulian Wiedmann { 62013a18d754SJulian Wiedmann if (cast_type != RTN_UNICAST) 62023a18d754SJulian Wiedmann return QETH_IQD_MCAST_TXQ; 62033a18d754SJulian Wiedmann return QETH_IQD_MIN_UCAST_TXQ; 62043a18d754SJulian Wiedmann } 62053a18d754SJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_iqd_select_queue); 62063a18d754SJulian Wiedmann 6207e6e771b3SJulian Wiedmann int qeth_open(struct net_device *dev) 6208e22355eaSJulian Wiedmann { 6209e22355eaSJulian Wiedmann struct qeth_card *card = dev->ml_priv; 6210e22355eaSJulian Wiedmann 6211e22355eaSJulian Wiedmann QETH_CARD_TEXT(card, 4, "qethopen"); 6212e22355eaSJulian Wiedmann 6213e22355eaSJulian Wiedmann if (qdio_stop_irq(CARD_DDEV(card), 0) < 0) 6214e22355eaSJulian Wiedmann return -EIO; 6215e22355eaSJulian Wiedmann 6216e22355eaSJulian Wiedmann card->data.state = CH_STATE_UP; 62173a18d754SJulian Wiedmann netif_tx_start_all_queues(dev); 6218e22355eaSJulian Wiedmann 6219e22355eaSJulian Wiedmann napi_enable(&card->napi); 6220e22355eaSJulian Wiedmann local_bh_disable(); 6221e22355eaSJulian Wiedmann napi_schedule(&card->napi); 6222e22355eaSJulian Wiedmann /* kick-start the NAPI softirq: */ 6223e22355eaSJulian Wiedmann local_bh_enable(); 6224e22355eaSJulian Wiedmann return 0; 6225e22355eaSJulian Wiedmann } 6226e22355eaSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_open); 6227e22355eaSJulian Wiedmann 6228e22355eaSJulian Wiedmann int qeth_stop(struct net_device *dev) 6229e22355eaSJulian Wiedmann { 6230e22355eaSJulian Wiedmann struct qeth_card *card = dev->ml_priv; 6231e22355eaSJulian Wiedmann 6232e22355eaSJulian Wiedmann QETH_CARD_TEXT(card, 4, "qethstop"); 6233e22355eaSJulian Wiedmann netif_tx_disable(dev); 6234e22355eaSJulian Wiedmann napi_disable(&card->napi); 6235e22355eaSJulian Wiedmann return 0; 6236e22355eaSJulian Wiedmann } 6237e22355eaSJulian Wiedmann EXPORT_SYMBOL_GPL(qeth_stop); 6238e22355eaSJulian Wiedmann 62394a71df50SFrank Blaschka static int __init qeth_core_init(void) 62404a71df50SFrank Blaschka { 62414a71df50SFrank Blaschka int rc; 62424a71df50SFrank Blaschka 624374eacdb9SFrank Blaschka pr_info("loading core functions\n"); 62444a71df50SFrank Blaschka 62454a71df50SFrank Blaschka rc = qeth_register_dbf_views(); 62464a71df50SFrank Blaschka if (rc) 6247a936b1efSJulian Wiedmann goto dbf_err; 6248035da16fSMark McLoughlin qeth_core_root_dev = root_device_register("qeth"); 62499262c6c2SDuan Jiong rc = PTR_ERR_OR_ZERO(qeth_core_root_dev); 62504a71df50SFrank Blaschka if (rc) 62514a71df50SFrank Blaschka goto register_err; 625255494264SJulian Wiedmann qeth_core_header_cache = 625355494264SJulian Wiedmann kmem_cache_create("qeth_hdr", QETH_HDR_CACHE_OBJ_SIZE, 625455494264SJulian Wiedmann roundup_pow_of_two(QETH_HDR_CACHE_OBJ_SIZE), 625555494264SJulian Wiedmann 0, NULL); 6256683d718aSFrank Blaschka if (!qeth_core_header_cache) { 6257683d718aSFrank Blaschka rc = -ENOMEM; 6258683d718aSFrank Blaschka goto slab_err; 6259683d718aSFrank Blaschka } 62600da9581dSEinar Lueck qeth_qdio_outbuf_cache = kmem_cache_create("qeth_buf", 62610da9581dSEinar Lueck sizeof(struct qeth_qdio_out_buffer), 0, 0, NULL); 62620da9581dSEinar Lueck if (!qeth_qdio_outbuf_cache) { 62630da9581dSEinar Lueck rc = -ENOMEM; 62640da9581dSEinar Lueck goto cqslab_err; 62650da9581dSEinar Lueck } 62664a71df50SFrank Blaschka rc = ccw_driver_register(&qeth_ccw_driver); 62674a71df50SFrank Blaschka if (rc) 62684a71df50SFrank Blaschka goto ccw_err; 62694a71df50SFrank Blaschka rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver); 62704a71df50SFrank Blaschka if (rc) 62714a71df50SFrank Blaschka goto ccwgroup_err; 62720da9581dSEinar Lueck 6273683d718aSFrank Blaschka return 0; 6274afb6ac59SSebastian Ott 6275afb6ac59SSebastian Ott ccwgroup_err: 6276afb6ac59SSebastian Ott ccw_driver_unregister(&qeth_ccw_driver); 6277afb6ac59SSebastian Ott ccw_err: 6278afb6ac59SSebastian Ott kmem_cache_destroy(qeth_qdio_outbuf_cache); 62790da9581dSEinar Lueck cqslab_err: 62800da9581dSEinar Lueck kmem_cache_destroy(qeth_core_header_cache); 6281683d718aSFrank Blaschka slab_err: 6282035da16fSMark McLoughlin root_device_unregister(qeth_core_root_dev); 62834a71df50SFrank Blaschka register_err: 62844a71df50SFrank Blaschka qeth_unregister_dbf_views(); 6285a936b1efSJulian Wiedmann dbf_err: 628674eacdb9SFrank Blaschka pr_err("Initializing the qeth device driver failed\n"); 62874a71df50SFrank Blaschka return rc; 62884a71df50SFrank Blaschka } 62894a71df50SFrank Blaschka 62904a71df50SFrank Blaschka static void __exit qeth_core_exit(void) 62914a71df50SFrank Blaschka { 6292819dc537SStefan Raspl qeth_clear_dbf_list(); 62934a71df50SFrank Blaschka ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver); 62944a71df50SFrank Blaschka ccw_driver_unregister(&qeth_ccw_driver); 62950da9581dSEinar Lueck kmem_cache_destroy(qeth_qdio_outbuf_cache); 6296683d718aSFrank Blaschka kmem_cache_destroy(qeth_core_header_cache); 6297afb6ac59SSebastian Ott root_device_unregister(qeth_core_root_dev); 62984a71df50SFrank Blaschka qeth_unregister_dbf_views(); 629974eacdb9SFrank Blaschka pr_info("core functions removed\n"); 63004a71df50SFrank Blaschka } 63014a71df50SFrank Blaschka 63024a71df50SFrank Blaschka module_init(qeth_core_init); 63034a71df50SFrank Blaschka module_exit(qeth_core_exit); 63044a71df50SFrank Blaschka MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); 63054a71df50SFrank Blaschka MODULE_DESCRIPTION("qeth core functions"); 63064a71df50SFrank Blaschka MODULE_LICENSE("GPL"); 6307