Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1 | /* |
| 2 | * drivers/s390/net/qeth_core_main.c |
| 3 | * |
| 4 | * Copyright IBM Corp. 2007 |
| 5 | * Author(s): Utz Bacher <utz.bacher@de.ibm.com>, |
| 6 | * Frank Pavlic <fpavlic@de.ibm.com>, |
| 7 | * Thomas Spatzier <tspat@de.ibm.com>, |
| 8 | * Frank Blaschka <frank.blaschka@de.ibm.com> |
| 9 | */ |
| 10 | |
| 11 | #include <linux/module.h> |
| 12 | #include <linux/moduleparam.h> |
| 13 | #include <linux/string.h> |
| 14 | #include <linux/errno.h> |
| 15 | #include <linux/kernel.h> |
| 16 | #include <linux/ip.h> |
| 17 | #include <linux/ipv6.h> |
| 18 | #include <linux/tcp.h> |
| 19 | #include <linux/mii.h> |
| 20 | #include <linux/kthread.h> |
| 21 | |
| 22 | #include <asm-s390/ebcdic.h> |
| 23 | #include <asm-s390/io.h> |
| 24 | #include <asm/s390_rdev.h> |
| 25 | |
| 26 | #include "qeth_core.h" |
| 27 | #include "qeth_core_offl.h" |
| 28 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 29 | struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = { |
| 30 | /* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */ |
| 31 | /* N P A M L V H */ |
| 32 | [QETH_DBF_SETUP] = {"qeth_setup", |
| 33 | 8, 1, 8, 5, &debug_hex_ascii_view, NULL}, |
| 34 | [QETH_DBF_QERR] = {"qeth_qerr", |
| 35 | 2, 1, 8, 2, &debug_hex_ascii_view, NULL}, |
| 36 | [QETH_DBF_TRACE] = {"qeth_trace", |
| 37 | 4, 1, 8, 3, &debug_hex_ascii_view, NULL}, |
| 38 | [QETH_DBF_MSG] = {"qeth_msg", |
| 39 | 8, 1, 128, 3, &debug_sprintf_view, NULL}, |
| 40 | [QETH_DBF_SENSE] = {"qeth_sense", |
| 41 | 2, 1, 64, 2, &debug_hex_ascii_view, NULL}, |
| 42 | [QETH_DBF_MISC] = {"qeth_misc", |
| 43 | 2, 1, 256, 2, &debug_hex_ascii_view, NULL}, |
| 44 | [QETH_DBF_CTRL] = {"qeth_control", |
| 45 | 8, 1, QETH_DBF_CTRL_LEN, 5, &debug_hex_ascii_view, NULL}, |
| 46 | }; |
| 47 | EXPORT_SYMBOL_GPL(qeth_dbf); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 48 | |
| 49 | struct qeth_card_list_struct qeth_core_card_list; |
| 50 | EXPORT_SYMBOL_GPL(qeth_core_card_list); |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame^] | 51 | struct kmem_cache *qeth_core_header_cache; |
| 52 | EXPORT_SYMBOL_GPL(qeth_core_header_cache); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 53 | |
| 54 | static struct device *qeth_core_root_dev; |
| 55 | static unsigned int known_devices[][10] = QETH_MODELLIST_ARRAY; |
| 56 | static struct lock_class_key qdio_out_skb_queue_key; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 57 | |
| 58 | static void qeth_send_control_data_cb(struct qeth_channel *, |
| 59 | struct qeth_cmd_buffer *); |
| 60 | static int qeth_issue_next_read(struct qeth_card *); |
| 61 | static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *); |
| 62 | static void qeth_setup_ccw(struct qeth_channel *, unsigned char *, __u32); |
| 63 | static void qeth_free_buffer_pool(struct qeth_card *); |
| 64 | static int qeth_qdio_establish(struct qeth_card *); |
| 65 | |
| 66 | |
| 67 | static inline void __qeth_fill_buffer_frag(struct sk_buff *skb, |
| 68 | struct qdio_buffer *buffer, int is_tso, |
| 69 | int *next_element_to_fill) |
| 70 | { |
| 71 | struct skb_frag_struct *frag; |
| 72 | int fragno; |
| 73 | unsigned long addr; |
| 74 | int element, cnt, dlen; |
| 75 | |
| 76 | fragno = skb_shinfo(skb)->nr_frags; |
| 77 | element = *next_element_to_fill; |
| 78 | dlen = 0; |
| 79 | |
| 80 | if (is_tso) |
| 81 | buffer->element[element].flags = |
| 82 | SBAL_FLAGS_MIDDLE_FRAG; |
| 83 | else |
| 84 | buffer->element[element].flags = |
| 85 | SBAL_FLAGS_FIRST_FRAG; |
| 86 | dlen = skb->len - skb->data_len; |
| 87 | if (dlen) { |
| 88 | buffer->element[element].addr = skb->data; |
| 89 | buffer->element[element].length = dlen; |
| 90 | element++; |
| 91 | } |
| 92 | for (cnt = 0; cnt < fragno; cnt++) { |
| 93 | frag = &skb_shinfo(skb)->frags[cnt]; |
| 94 | addr = (page_to_pfn(frag->page) << PAGE_SHIFT) + |
| 95 | frag->page_offset; |
| 96 | buffer->element[element].addr = (char *)addr; |
| 97 | buffer->element[element].length = frag->size; |
| 98 | if (cnt < (fragno - 1)) |
| 99 | buffer->element[element].flags = |
| 100 | SBAL_FLAGS_MIDDLE_FRAG; |
| 101 | else |
| 102 | buffer->element[element].flags = |
| 103 | SBAL_FLAGS_LAST_FRAG; |
| 104 | element++; |
| 105 | } |
| 106 | *next_element_to_fill = element; |
| 107 | } |
| 108 | |
| 109 | static inline const char *qeth_get_cardname(struct qeth_card *card) |
| 110 | { |
| 111 | if (card->info.guestlan) { |
| 112 | switch (card->info.type) { |
| 113 | case QETH_CARD_TYPE_OSAE: |
| 114 | return " Guest LAN QDIO"; |
| 115 | case QETH_CARD_TYPE_IQD: |
| 116 | return " Guest LAN Hiper"; |
| 117 | default: |
| 118 | return " unknown"; |
| 119 | } |
| 120 | } else { |
| 121 | switch (card->info.type) { |
| 122 | case QETH_CARD_TYPE_OSAE: |
| 123 | return " OSD Express"; |
| 124 | case QETH_CARD_TYPE_IQD: |
| 125 | return " HiperSockets"; |
| 126 | case QETH_CARD_TYPE_OSN: |
| 127 | return " OSN QDIO"; |
| 128 | default: |
| 129 | return " unknown"; |
| 130 | } |
| 131 | } |
| 132 | return " n/a"; |
| 133 | } |
| 134 | |
| 135 | /* max length to be returned: 14 */ |
| 136 | const char *qeth_get_cardname_short(struct qeth_card *card) |
| 137 | { |
| 138 | if (card->info.guestlan) { |
| 139 | switch (card->info.type) { |
| 140 | case QETH_CARD_TYPE_OSAE: |
| 141 | return "GuestLAN QDIO"; |
| 142 | case QETH_CARD_TYPE_IQD: |
| 143 | return "GuestLAN Hiper"; |
| 144 | default: |
| 145 | return "unknown"; |
| 146 | } |
| 147 | } else { |
| 148 | switch (card->info.type) { |
| 149 | case QETH_CARD_TYPE_OSAE: |
| 150 | switch (card->info.link_type) { |
| 151 | case QETH_LINK_TYPE_FAST_ETH: |
| 152 | return "OSD_100"; |
| 153 | case QETH_LINK_TYPE_HSTR: |
| 154 | return "HSTR"; |
| 155 | case QETH_LINK_TYPE_GBIT_ETH: |
| 156 | return "OSD_1000"; |
| 157 | case QETH_LINK_TYPE_10GBIT_ETH: |
| 158 | return "OSD_10GIG"; |
| 159 | case QETH_LINK_TYPE_LANE_ETH100: |
| 160 | return "OSD_FE_LANE"; |
| 161 | case QETH_LINK_TYPE_LANE_TR: |
| 162 | return "OSD_TR_LANE"; |
| 163 | case QETH_LINK_TYPE_LANE_ETH1000: |
| 164 | return "OSD_GbE_LANE"; |
| 165 | case QETH_LINK_TYPE_LANE: |
| 166 | return "OSD_ATM_LANE"; |
| 167 | default: |
| 168 | return "OSD_Express"; |
| 169 | } |
| 170 | case QETH_CARD_TYPE_IQD: |
| 171 | return "HiperSockets"; |
| 172 | case QETH_CARD_TYPE_OSN: |
| 173 | return "OSN"; |
| 174 | default: |
| 175 | return "unknown"; |
| 176 | } |
| 177 | } |
| 178 | return "n/a"; |
| 179 | } |
| 180 | |
| 181 | void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads, |
| 182 | int clear_start_mask) |
| 183 | { |
| 184 | unsigned long flags; |
| 185 | |
| 186 | spin_lock_irqsave(&card->thread_mask_lock, flags); |
| 187 | card->thread_allowed_mask = threads; |
| 188 | if (clear_start_mask) |
| 189 | card->thread_start_mask &= threads; |
| 190 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| 191 | wake_up(&card->wait_q); |
| 192 | } |
| 193 | EXPORT_SYMBOL_GPL(qeth_set_allowed_threads); |
| 194 | |
| 195 | int qeth_threads_running(struct qeth_card *card, unsigned long threads) |
| 196 | { |
| 197 | unsigned long flags; |
| 198 | int rc = 0; |
| 199 | |
| 200 | spin_lock_irqsave(&card->thread_mask_lock, flags); |
| 201 | rc = (card->thread_running_mask & threads); |
| 202 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| 203 | return rc; |
| 204 | } |
| 205 | EXPORT_SYMBOL_GPL(qeth_threads_running); |
| 206 | |
| 207 | int qeth_wait_for_threads(struct qeth_card *card, unsigned long threads) |
| 208 | { |
| 209 | return wait_event_interruptible(card->wait_q, |
| 210 | qeth_threads_running(card, threads) == 0); |
| 211 | } |
| 212 | EXPORT_SYMBOL_GPL(qeth_wait_for_threads); |
| 213 | |
| 214 | void qeth_clear_working_pool_list(struct qeth_card *card) |
| 215 | { |
| 216 | struct qeth_buffer_pool_entry *pool_entry, *tmp; |
| 217 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 218 | QETH_DBF_TEXT(TRACE, 5, "clwrklst"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 219 | list_for_each_entry_safe(pool_entry, tmp, |
| 220 | &card->qdio.in_buf_pool.entry_list, list){ |
| 221 | list_del(&pool_entry->list); |
| 222 | } |
| 223 | } |
| 224 | EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list); |
| 225 | |
| 226 | static int qeth_alloc_buffer_pool(struct qeth_card *card) |
| 227 | { |
| 228 | struct qeth_buffer_pool_entry *pool_entry; |
| 229 | void *ptr; |
| 230 | int i, j; |
| 231 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 232 | QETH_DBF_TEXT(TRACE, 5, "alocpool"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 233 | for (i = 0; i < card->qdio.init_pool.buf_count; ++i) { |
| 234 | pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL); |
| 235 | if (!pool_entry) { |
| 236 | qeth_free_buffer_pool(card); |
| 237 | return -ENOMEM; |
| 238 | } |
| 239 | for (j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j) { |
Ursula Braun | 508b3c4 | 2008-04-01 10:26:54 +0200 | [diff] [blame] | 240 | ptr = (void *) __get_free_page(GFP_KERNEL); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 241 | if (!ptr) { |
| 242 | while (j > 0) |
| 243 | free_page((unsigned long) |
| 244 | pool_entry->elements[--j]); |
| 245 | kfree(pool_entry); |
| 246 | qeth_free_buffer_pool(card); |
| 247 | return -ENOMEM; |
| 248 | } |
| 249 | pool_entry->elements[j] = ptr; |
| 250 | } |
| 251 | list_add(&pool_entry->init_list, |
| 252 | &card->qdio.init_pool.entry_list); |
| 253 | } |
| 254 | return 0; |
| 255 | } |
| 256 | |
| 257 | int qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt) |
| 258 | { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 259 | QETH_DBF_TEXT(TRACE, 2, "realcbp"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 260 | |
| 261 | if ((card->state != CARD_STATE_DOWN) && |
| 262 | (card->state != CARD_STATE_RECOVER)) |
| 263 | return -EPERM; |
| 264 | |
| 265 | /* TODO: steel/add buffers from/to a running card's buffer pool (?) */ |
| 266 | qeth_clear_working_pool_list(card); |
| 267 | qeth_free_buffer_pool(card); |
| 268 | card->qdio.in_buf_pool.buf_count = bufcnt; |
| 269 | card->qdio.init_pool.buf_count = bufcnt; |
| 270 | return qeth_alloc_buffer_pool(card); |
| 271 | } |
| 272 | |
| 273 | int qeth_set_large_send(struct qeth_card *card, |
| 274 | enum qeth_large_send_types type) |
| 275 | { |
| 276 | int rc = 0; |
| 277 | |
| 278 | if (card->dev == NULL) { |
| 279 | card->options.large_send = type; |
| 280 | return 0; |
| 281 | } |
| 282 | if (card->state == CARD_STATE_UP) |
| 283 | netif_tx_disable(card->dev); |
| 284 | card->options.large_send = type; |
| 285 | switch (card->options.large_send) { |
| 286 | case QETH_LARGE_SEND_EDDP: |
| 287 | card->dev->features |= NETIF_F_TSO | NETIF_F_SG | |
| 288 | NETIF_F_HW_CSUM; |
| 289 | break; |
| 290 | case QETH_LARGE_SEND_TSO: |
| 291 | if (qeth_is_supported(card, IPA_OUTBOUND_TSO)) { |
| 292 | card->dev->features |= NETIF_F_TSO | NETIF_F_SG | |
| 293 | NETIF_F_HW_CSUM; |
| 294 | } else { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 295 | card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG | |
| 296 | NETIF_F_HW_CSUM); |
| 297 | card->options.large_send = QETH_LARGE_SEND_NO; |
| 298 | rc = -EOPNOTSUPP; |
| 299 | } |
| 300 | break; |
| 301 | default: /* includes QETH_LARGE_SEND_NO */ |
| 302 | card->dev->features &= ~(NETIF_F_TSO | NETIF_F_SG | |
| 303 | NETIF_F_HW_CSUM); |
| 304 | break; |
| 305 | } |
| 306 | if (card->state == CARD_STATE_UP) |
| 307 | netif_wake_queue(card->dev); |
| 308 | return rc; |
| 309 | } |
| 310 | EXPORT_SYMBOL_GPL(qeth_set_large_send); |
| 311 | |
| 312 | static int qeth_issue_next_read(struct qeth_card *card) |
| 313 | { |
| 314 | int rc; |
| 315 | struct qeth_cmd_buffer *iob; |
| 316 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 317 | QETH_DBF_TEXT(TRACE, 5, "issnxrd"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 318 | if (card->read.state != CH_STATE_UP) |
| 319 | return -EIO; |
| 320 | iob = qeth_get_buffer(&card->read); |
| 321 | if (!iob) { |
| 322 | PRINT_WARN("issue_next_read failed: no iob available!\n"); |
| 323 | return -ENOMEM; |
| 324 | } |
| 325 | qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 326 | QETH_DBF_TEXT(TRACE, 6, "noirqpnd"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 327 | rc = ccw_device_start(card->read.ccwdev, &card->read.ccw, |
| 328 | (addr_t) iob, 0, 0); |
| 329 | if (rc) { |
| 330 | PRINT_ERR("Error in starting next read ccw! rc=%i\n", rc); |
| 331 | atomic_set(&card->read.irq_pending, 0); |
| 332 | qeth_schedule_recovery(card); |
| 333 | wake_up(&card->wait_q); |
| 334 | } |
| 335 | return rc; |
| 336 | } |
| 337 | |
| 338 | static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card) |
| 339 | { |
| 340 | struct qeth_reply *reply; |
| 341 | |
| 342 | reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC); |
| 343 | if (reply) { |
| 344 | atomic_set(&reply->refcnt, 1); |
| 345 | atomic_set(&reply->received, 0); |
| 346 | reply->card = card; |
| 347 | }; |
| 348 | return reply; |
| 349 | } |
| 350 | |
| 351 | static void qeth_get_reply(struct qeth_reply *reply) |
| 352 | { |
| 353 | WARN_ON(atomic_read(&reply->refcnt) <= 0); |
| 354 | atomic_inc(&reply->refcnt); |
| 355 | } |
| 356 | |
| 357 | static void qeth_put_reply(struct qeth_reply *reply) |
| 358 | { |
| 359 | WARN_ON(atomic_read(&reply->refcnt) <= 0); |
| 360 | if (atomic_dec_and_test(&reply->refcnt)) |
| 361 | kfree(reply); |
| 362 | } |
| 363 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 364 | static void qeth_issue_ipa_msg(struct qeth_ipa_cmd *cmd, int rc, |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 365 | struct qeth_card *card) |
| 366 | { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 367 | char *ipa_name; |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 368 | int com = cmd->hdr.command; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 369 | ipa_name = qeth_get_ipa_cmd_name(com); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 370 | if (rc) |
| 371 | QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s returned x%X \"%s\"\n", |
| 372 | ipa_name, com, QETH_CARD_IFNAME(card), |
| 373 | rc, qeth_get_ipa_msg(rc)); |
| 374 | else |
| 375 | QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s succeeded\n", |
| 376 | ipa_name, com, QETH_CARD_IFNAME(card)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 377 | } |
| 378 | |
| 379 | static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card, |
| 380 | struct qeth_cmd_buffer *iob) |
| 381 | { |
| 382 | struct qeth_ipa_cmd *cmd = NULL; |
| 383 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 384 | QETH_DBF_TEXT(TRACE, 5, "chkipad"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 385 | if (IS_IPA(iob->data)) { |
| 386 | cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data); |
| 387 | if (IS_IPA_REPLY(cmd)) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 388 | if (cmd->hdr.command < IPA_CMD_SETCCID || |
| 389 | cmd->hdr.command > IPA_CMD_MODCCID) |
| 390 | qeth_issue_ipa_msg(cmd, |
| 391 | cmd->hdr.return_code, card); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 392 | return cmd; |
| 393 | } else { |
| 394 | switch (cmd->hdr.command) { |
| 395 | case IPA_CMD_STOPLAN: |
| 396 | PRINT_WARN("Link failure on %s (CHPID 0x%X) - " |
| 397 | "there is a network problem or " |
| 398 | "someone pulled the cable or " |
| 399 | "disabled the port.\n", |
| 400 | QETH_CARD_IFNAME(card), |
| 401 | card->info.chpid); |
| 402 | card->lan_online = 0; |
| 403 | if (card->dev && netif_carrier_ok(card->dev)) |
| 404 | netif_carrier_off(card->dev); |
| 405 | return NULL; |
| 406 | case IPA_CMD_STARTLAN: |
| 407 | PRINT_INFO("Link reestablished on %s " |
| 408 | "(CHPID 0x%X). Scheduling " |
| 409 | "IP address reset.\n", |
| 410 | QETH_CARD_IFNAME(card), |
| 411 | card->info.chpid); |
| 412 | netif_carrier_on(card->dev); |
Ursula Braun | 922dc06 | 2008-04-01 10:26:55 +0200 | [diff] [blame] | 413 | card->lan_online = 1; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 414 | qeth_schedule_recovery(card); |
| 415 | return NULL; |
| 416 | case IPA_CMD_MODCCID: |
| 417 | return cmd; |
| 418 | case IPA_CMD_REGISTER_LOCAL_ADDR: |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 419 | QETH_DBF_TEXT(TRACE, 3, "irla"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 420 | break; |
| 421 | case IPA_CMD_UNREGISTER_LOCAL_ADDR: |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 422 | QETH_DBF_TEXT(TRACE, 3, "urla"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 423 | break; |
| 424 | default: |
Frank Blaschka | c4cef07 | 2008-07-14 09:59:31 +0200 | [diff] [blame] | 425 | QETH_DBF_MESSAGE(2, "Received data is IPA " |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 426 | "but not a reply!\n"); |
| 427 | break; |
| 428 | } |
| 429 | } |
| 430 | } |
| 431 | return cmd; |
| 432 | } |
| 433 | |
| 434 | void qeth_clear_ipacmd_list(struct qeth_card *card) |
| 435 | { |
| 436 | struct qeth_reply *reply, *r; |
| 437 | unsigned long flags; |
| 438 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 439 | QETH_DBF_TEXT(TRACE, 4, "clipalst"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 440 | |
| 441 | spin_lock_irqsave(&card->lock, flags); |
| 442 | list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) { |
| 443 | qeth_get_reply(reply); |
| 444 | reply->rc = -EIO; |
| 445 | atomic_inc(&reply->received); |
| 446 | list_del_init(&reply->list); |
| 447 | wake_up(&reply->wait_q); |
| 448 | qeth_put_reply(reply); |
| 449 | } |
| 450 | spin_unlock_irqrestore(&card->lock, flags); |
| 451 | } |
| 452 | EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list); |
| 453 | |
| 454 | static int qeth_check_idx_response(unsigned char *buffer) |
| 455 | { |
| 456 | if (!buffer) |
| 457 | return 0; |
| 458 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 459 | QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 460 | if ((buffer[2] & 0xc0) == 0xc0) { |
| 461 | PRINT_WARN("received an IDX TERMINATE " |
| 462 | "with cause code 0x%02x%s\n", |
| 463 | buffer[4], |
| 464 | ((buffer[4] == 0x22) ? |
| 465 | " -- try another portname" : "")); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 466 | QETH_DBF_TEXT(TRACE, 2, "ckidxres"); |
| 467 | QETH_DBF_TEXT(TRACE, 2, " idxterm"); |
| 468 | QETH_DBF_TEXT_(TRACE, 2, " rc%d", -EIO); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 469 | return -EIO; |
| 470 | } |
| 471 | return 0; |
| 472 | } |
| 473 | |
| 474 | static void qeth_setup_ccw(struct qeth_channel *channel, unsigned char *iob, |
| 475 | __u32 len) |
| 476 | { |
| 477 | struct qeth_card *card; |
| 478 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 479 | QETH_DBF_TEXT(TRACE, 4, "setupccw"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 480 | card = CARD_FROM_CDEV(channel->ccwdev); |
| 481 | if (channel == &card->read) |
| 482 | memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1)); |
| 483 | else |
| 484 | memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1)); |
| 485 | channel->ccw.count = len; |
| 486 | channel->ccw.cda = (__u32) __pa(iob); |
| 487 | } |
| 488 | |
| 489 | static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel) |
| 490 | { |
| 491 | __u8 index; |
| 492 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 493 | QETH_DBF_TEXT(TRACE, 6, "getbuff"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 494 | index = channel->io_buf_no; |
| 495 | do { |
| 496 | if (channel->iob[index].state == BUF_STATE_FREE) { |
| 497 | channel->iob[index].state = BUF_STATE_LOCKED; |
| 498 | channel->io_buf_no = (channel->io_buf_no + 1) % |
| 499 | QETH_CMD_BUFFER_NO; |
| 500 | memset(channel->iob[index].data, 0, QETH_BUFSIZE); |
| 501 | return channel->iob + index; |
| 502 | } |
| 503 | index = (index + 1) % QETH_CMD_BUFFER_NO; |
| 504 | } while (index != channel->io_buf_no); |
| 505 | |
| 506 | return NULL; |
| 507 | } |
| 508 | |
| 509 | void qeth_release_buffer(struct qeth_channel *channel, |
| 510 | struct qeth_cmd_buffer *iob) |
| 511 | { |
| 512 | unsigned long flags; |
| 513 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 514 | QETH_DBF_TEXT(TRACE, 6, "relbuff"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 515 | spin_lock_irqsave(&channel->iob_lock, flags); |
| 516 | memset(iob->data, 0, QETH_BUFSIZE); |
| 517 | iob->state = BUF_STATE_FREE; |
| 518 | iob->callback = qeth_send_control_data_cb; |
| 519 | iob->rc = 0; |
| 520 | spin_unlock_irqrestore(&channel->iob_lock, flags); |
| 521 | } |
| 522 | EXPORT_SYMBOL_GPL(qeth_release_buffer); |
| 523 | |
| 524 | static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel) |
| 525 | { |
| 526 | struct qeth_cmd_buffer *buffer = NULL; |
| 527 | unsigned long flags; |
| 528 | |
| 529 | spin_lock_irqsave(&channel->iob_lock, flags); |
| 530 | buffer = __qeth_get_buffer(channel); |
| 531 | spin_unlock_irqrestore(&channel->iob_lock, flags); |
| 532 | return buffer; |
| 533 | } |
| 534 | |
| 535 | struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *channel) |
| 536 | { |
| 537 | struct qeth_cmd_buffer *buffer; |
| 538 | wait_event(channel->wait_q, |
| 539 | ((buffer = qeth_get_buffer(channel)) != NULL)); |
| 540 | return buffer; |
| 541 | } |
| 542 | EXPORT_SYMBOL_GPL(qeth_wait_for_buffer); |
| 543 | |
| 544 | void qeth_clear_cmd_buffers(struct qeth_channel *channel) |
| 545 | { |
| 546 | int cnt; |
| 547 | |
| 548 | for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) |
| 549 | qeth_release_buffer(channel, &channel->iob[cnt]); |
| 550 | channel->buf_no = 0; |
| 551 | channel->io_buf_no = 0; |
| 552 | } |
| 553 | EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers); |
| 554 | |
| 555 | static void qeth_send_control_data_cb(struct qeth_channel *channel, |
| 556 | struct qeth_cmd_buffer *iob) |
| 557 | { |
| 558 | struct qeth_card *card; |
| 559 | struct qeth_reply *reply, *r; |
| 560 | struct qeth_ipa_cmd *cmd; |
| 561 | unsigned long flags; |
| 562 | int keep_reply; |
| 563 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 564 | QETH_DBF_TEXT(TRACE, 4, "sndctlcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 565 | |
| 566 | card = CARD_FROM_CDEV(channel->ccwdev); |
| 567 | if (qeth_check_idx_response(iob->data)) { |
| 568 | qeth_clear_ipacmd_list(card); |
| 569 | qeth_schedule_recovery(card); |
| 570 | goto out; |
| 571 | } |
| 572 | |
| 573 | cmd = qeth_check_ipa_data(card, iob); |
| 574 | if ((cmd == NULL) && (card->state != CARD_STATE_DOWN)) |
| 575 | goto out; |
| 576 | /*in case of OSN : check if cmd is set */ |
| 577 | if (card->info.type == QETH_CARD_TYPE_OSN && |
| 578 | cmd && |
| 579 | cmd->hdr.command != IPA_CMD_STARTLAN && |
| 580 | card->osn_info.assist_cb != NULL) { |
| 581 | card->osn_info.assist_cb(card->dev, cmd); |
| 582 | goto out; |
| 583 | } |
| 584 | |
| 585 | spin_lock_irqsave(&card->lock, flags); |
| 586 | list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) { |
| 587 | if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) || |
| 588 | ((cmd) && (reply->seqno == cmd->hdr.seqno))) { |
| 589 | qeth_get_reply(reply); |
| 590 | list_del_init(&reply->list); |
| 591 | spin_unlock_irqrestore(&card->lock, flags); |
| 592 | keep_reply = 0; |
| 593 | if (reply->callback != NULL) { |
| 594 | if (cmd) { |
| 595 | reply->offset = (__u16)((char *)cmd - |
| 596 | (char *)iob->data); |
| 597 | keep_reply = reply->callback(card, |
| 598 | reply, |
| 599 | (unsigned long)cmd); |
| 600 | } else |
| 601 | keep_reply = reply->callback(card, |
| 602 | reply, |
| 603 | (unsigned long)iob); |
| 604 | } |
| 605 | if (cmd) |
| 606 | reply->rc = (u16) cmd->hdr.return_code; |
| 607 | else if (iob->rc) |
| 608 | reply->rc = iob->rc; |
| 609 | if (keep_reply) { |
| 610 | spin_lock_irqsave(&card->lock, flags); |
| 611 | list_add_tail(&reply->list, |
| 612 | &card->cmd_waiter_list); |
| 613 | spin_unlock_irqrestore(&card->lock, flags); |
| 614 | } else { |
| 615 | atomic_inc(&reply->received); |
| 616 | wake_up(&reply->wait_q); |
| 617 | } |
| 618 | qeth_put_reply(reply); |
| 619 | goto out; |
| 620 | } |
| 621 | } |
| 622 | spin_unlock_irqrestore(&card->lock, flags); |
| 623 | out: |
| 624 | memcpy(&card->seqno.pdu_hdr_ack, |
| 625 | QETH_PDU_HEADER_SEQ_NO(iob->data), |
| 626 | QETH_SEQ_NO_LENGTH); |
| 627 | qeth_release_buffer(channel, iob); |
| 628 | } |
| 629 | |
| 630 | static int qeth_setup_channel(struct qeth_channel *channel) |
| 631 | { |
| 632 | int cnt; |
| 633 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 634 | QETH_DBF_TEXT(SETUP, 2, "setupch"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 635 | for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) { |
| 636 | channel->iob[cnt].data = (char *) |
| 637 | kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL); |
| 638 | if (channel->iob[cnt].data == NULL) |
| 639 | break; |
| 640 | channel->iob[cnt].state = BUF_STATE_FREE; |
| 641 | channel->iob[cnt].channel = channel; |
| 642 | channel->iob[cnt].callback = qeth_send_control_data_cb; |
| 643 | channel->iob[cnt].rc = 0; |
| 644 | } |
| 645 | if (cnt < QETH_CMD_BUFFER_NO) { |
| 646 | while (cnt-- > 0) |
| 647 | kfree(channel->iob[cnt].data); |
| 648 | return -ENOMEM; |
| 649 | } |
| 650 | channel->buf_no = 0; |
| 651 | channel->io_buf_no = 0; |
| 652 | atomic_set(&channel->irq_pending, 0); |
| 653 | spin_lock_init(&channel->iob_lock); |
| 654 | |
| 655 | init_waitqueue_head(&channel->wait_q); |
| 656 | return 0; |
| 657 | } |
| 658 | |
| 659 | static int qeth_set_thread_start_bit(struct qeth_card *card, |
| 660 | unsigned long thread) |
| 661 | { |
| 662 | unsigned long flags; |
| 663 | |
| 664 | spin_lock_irqsave(&card->thread_mask_lock, flags); |
| 665 | if (!(card->thread_allowed_mask & thread) || |
| 666 | (card->thread_start_mask & thread)) { |
| 667 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| 668 | return -EPERM; |
| 669 | } |
| 670 | card->thread_start_mask |= thread; |
| 671 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| 672 | return 0; |
| 673 | } |
| 674 | |
| 675 | void qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread) |
| 676 | { |
| 677 | unsigned long flags; |
| 678 | |
| 679 | spin_lock_irqsave(&card->thread_mask_lock, flags); |
| 680 | card->thread_start_mask &= ~thread; |
| 681 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| 682 | wake_up(&card->wait_q); |
| 683 | } |
| 684 | EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit); |
| 685 | |
| 686 | void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread) |
| 687 | { |
| 688 | unsigned long flags; |
| 689 | |
| 690 | spin_lock_irqsave(&card->thread_mask_lock, flags); |
| 691 | card->thread_running_mask &= ~thread; |
| 692 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| 693 | wake_up(&card->wait_q); |
| 694 | } |
| 695 | EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit); |
| 696 | |
| 697 | static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread) |
| 698 | { |
| 699 | unsigned long flags; |
| 700 | int rc = 0; |
| 701 | |
| 702 | spin_lock_irqsave(&card->thread_mask_lock, flags); |
| 703 | if (card->thread_start_mask & thread) { |
| 704 | if ((card->thread_allowed_mask & thread) && |
| 705 | !(card->thread_running_mask & thread)) { |
| 706 | rc = 1; |
| 707 | card->thread_start_mask &= ~thread; |
| 708 | card->thread_running_mask |= thread; |
| 709 | } else |
| 710 | rc = -EPERM; |
| 711 | } |
| 712 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| 713 | return rc; |
| 714 | } |
| 715 | |
| 716 | int qeth_do_run_thread(struct qeth_card *card, unsigned long thread) |
| 717 | { |
| 718 | int rc = 0; |
| 719 | |
| 720 | wait_event(card->wait_q, |
| 721 | (rc = __qeth_do_run_thread(card, thread)) >= 0); |
| 722 | return rc; |
| 723 | } |
| 724 | EXPORT_SYMBOL_GPL(qeth_do_run_thread); |
| 725 | |
| 726 | void qeth_schedule_recovery(struct qeth_card *card) |
| 727 | { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 728 | QETH_DBF_TEXT(TRACE, 2, "startrec"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 729 | if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0) |
| 730 | schedule_work(&card->kernel_thread_starter); |
| 731 | } |
| 732 | EXPORT_SYMBOL_GPL(qeth_schedule_recovery); |
| 733 | |
| 734 | static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb) |
| 735 | { |
| 736 | int dstat, cstat; |
| 737 | char *sense; |
| 738 | |
| 739 | sense = (char *) irb->ecw; |
Peter Oberparleiter | 23d805b | 2008-07-14 09:58:50 +0200 | [diff] [blame] | 740 | cstat = irb->scsw.cmd.cstat; |
| 741 | dstat = irb->scsw.cmd.dstat; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 742 | |
| 743 | if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK | |
| 744 | SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK | |
| 745 | SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 746 | QETH_DBF_TEXT(TRACE, 2, "CGENCHK"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 747 | PRINT_WARN("check on device %s, dstat=x%x, cstat=x%x ", |
| 748 | cdev->dev.bus_id, dstat, cstat); |
| 749 | print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET, |
| 750 | 16, 1, irb, 64, 1); |
| 751 | return 1; |
| 752 | } |
| 753 | |
| 754 | if (dstat & DEV_STAT_UNIT_CHECK) { |
| 755 | if (sense[SENSE_RESETTING_EVENT_BYTE] & |
| 756 | SENSE_RESETTING_EVENT_FLAG) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 757 | QETH_DBF_TEXT(TRACE, 2, "REVIND"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 758 | return 1; |
| 759 | } |
| 760 | if (sense[SENSE_COMMAND_REJECT_BYTE] & |
| 761 | SENSE_COMMAND_REJECT_FLAG) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 762 | QETH_DBF_TEXT(TRACE, 2, "CMDREJi"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 763 | return 0; |
| 764 | } |
| 765 | if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 766 | QETH_DBF_TEXT(TRACE, 2, "AFFE"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 767 | return 1; |
| 768 | } |
| 769 | if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 770 | QETH_DBF_TEXT(TRACE, 2, "ZEROSEN"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 771 | return 0; |
| 772 | } |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 773 | QETH_DBF_TEXT(TRACE, 2, "DGENCHK"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 774 | return 1; |
| 775 | } |
| 776 | return 0; |
| 777 | } |
| 778 | |
| 779 | static long __qeth_check_irb_error(struct ccw_device *cdev, |
| 780 | unsigned long intparm, struct irb *irb) |
| 781 | { |
| 782 | if (!IS_ERR(irb)) |
| 783 | return 0; |
| 784 | |
| 785 | switch (PTR_ERR(irb)) { |
| 786 | case -EIO: |
| 787 | PRINT_WARN("i/o-error on device %s\n", cdev->dev.bus_id); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 788 | QETH_DBF_TEXT(TRACE, 2, "ckirberr"); |
| 789 | QETH_DBF_TEXT_(TRACE, 2, " rc%d", -EIO); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 790 | break; |
| 791 | case -ETIMEDOUT: |
| 792 | PRINT_WARN("timeout on device %s\n", cdev->dev.bus_id); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 793 | QETH_DBF_TEXT(TRACE, 2, "ckirberr"); |
| 794 | QETH_DBF_TEXT_(TRACE, 2, " rc%d", -ETIMEDOUT); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 795 | if (intparm == QETH_RCD_PARM) { |
| 796 | struct qeth_card *card = CARD_FROM_CDEV(cdev); |
| 797 | |
| 798 | if (card && (card->data.ccwdev == cdev)) { |
| 799 | card->data.state = CH_STATE_DOWN; |
| 800 | wake_up(&card->wait_q); |
| 801 | } |
| 802 | } |
| 803 | break; |
| 804 | default: |
| 805 | PRINT_WARN("unknown error %ld on device %s\n", PTR_ERR(irb), |
| 806 | cdev->dev.bus_id); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 807 | QETH_DBF_TEXT(TRACE, 2, "ckirberr"); |
| 808 | QETH_DBF_TEXT(TRACE, 2, " rc???"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 809 | } |
| 810 | return PTR_ERR(irb); |
| 811 | } |
| 812 | |
| 813 | static void qeth_irq(struct ccw_device *cdev, unsigned long intparm, |
| 814 | struct irb *irb) |
| 815 | { |
| 816 | int rc; |
| 817 | int cstat, dstat; |
| 818 | struct qeth_cmd_buffer *buffer; |
| 819 | struct qeth_channel *channel; |
| 820 | struct qeth_card *card; |
| 821 | struct qeth_cmd_buffer *iob; |
| 822 | __u8 index; |
| 823 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 824 | QETH_DBF_TEXT(TRACE, 5, "irq"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 825 | |
| 826 | if (__qeth_check_irb_error(cdev, intparm, irb)) |
| 827 | return; |
Peter Oberparleiter | 23d805b | 2008-07-14 09:58:50 +0200 | [diff] [blame] | 828 | cstat = irb->scsw.cmd.cstat; |
| 829 | dstat = irb->scsw.cmd.dstat; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 830 | |
| 831 | card = CARD_FROM_CDEV(cdev); |
| 832 | if (!card) |
| 833 | return; |
| 834 | |
| 835 | if (card->read.ccwdev == cdev) { |
| 836 | channel = &card->read; |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 837 | QETH_DBF_TEXT(TRACE, 5, "read"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 838 | } else if (card->write.ccwdev == cdev) { |
| 839 | channel = &card->write; |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 840 | QETH_DBF_TEXT(TRACE, 5, "write"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 841 | } else { |
| 842 | channel = &card->data; |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 843 | QETH_DBF_TEXT(TRACE, 5, "data"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 844 | } |
| 845 | atomic_set(&channel->irq_pending, 0); |
| 846 | |
Peter Oberparleiter | 23d805b | 2008-07-14 09:58:50 +0200 | [diff] [blame] | 847 | if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC)) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 848 | channel->state = CH_STATE_STOPPED; |
| 849 | |
Peter Oberparleiter | 23d805b | 2008-07-14 09:58:50 +0200 | [diff] [blame] | 850 | if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC)) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 851 | channel->state = CH_STATE_HALTED; |
| 852 | |
| 853 | /*let's wake up immediately on data channel*/ |
| 854 | if ((channel == &card->data) && (intparm != 0) && |
| 855 | (intparm != QETH_RCD_PARM)) |
| 856 | goto out; |
| 857 | |
| 858 | if (intparm == QETH_CLEAR_CHANNEL_PARM) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 859 | QETH_DBF_TEXT(TRACE, 6, "clrchpar"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 860 | /* we don't have to handle this further */ |
| 861 | intparm = 0; |
| 862 | } |
| 863 | if (intparm == QETH_HALT_CHANNEL_PARM) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 864 | QETH_DBF_TEXT(TRACE, 6, "hltchpar"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 865 | /* we don't have to handle this further */ |
| 866 | intparm = 0; |
| 867 | } |
| 868 | if ((dstat & DEV_STAT_UNIT_EXCEP) || |
| 869 | (dstat & DEV_STAT_UNIT_CHECK) || |
| 870 | (cstat)) { |
| 871 | if (irb->esw.esw0.erw.cons) { |
| 872 | /* TODO: we should make this s390dbf */ |
| 873 | PRINT_WARN("sense data available on channel %s.\n", |
| 874 | CHANNEL_ID(channel)); |
| 875 | PRINT_WARN(" cstat 0x%X\n dstat 0x%X\n", cstat, dstat); |
| 876 | print_hex_dump(KERN_WARNING, "qeth: irb ", |
| 877 | DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1); |
| 878 | print_hex_dump(KERN_WARNING, "qeth: sense data ", |
| 879 | DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1); |
| 880 | } |
| 881 | if (intparm == QETH_RCD_PARM) { |
| 882 | channel->state = CH_STATE_DOWN; |
| 883 | goto out; |
| 884 | } |
| 885 | rc = qeth_get_problem(cdev, irb); |
| 886 | if (rc) { |
| 887 | qeth_schedule_recovery(card); |
| 888 | goto out; |
| 889 | } |
| 890 | } |
| 891 | |
| 892 | if (intparm == QETH_RCD_PARM) { |
| 893 | channel->state = CH_STATE_RCD_DONE; |
| 894 | goto out; |
| 895 | } |
| 896 | if (intparm) { |
| 897 | buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm); |
| 898 | buffer->state = BUF_STATE_PROCESSED; |
| 899 | } |
| 900 | if (channel == &card->data) |
| 901 | return; |
| 902 | if (channel == &card->read && |
| 903 | channel->state == CH_STATE_UP) |
| 904 | qeth_issue_next_read(card); |
| 905 | |
| 906 | iob = channel->iob; |
| 907 | index = channel->buf_no; |
| 908 | while (iob[index].state == BUF_STATE_PROCESSED) { |
| 909 | if (iob[index].callback != NULL) |
| 910 | iob[index].callback(channel, iob + index); |
| 911 | |
| 912 | index = (index + 1) % QETH_CMD_BUFFER_NO; |
| 913 | } |
| 914 | channel->buf_no = index; |
| 915 | out: |
| 916 | wake_up(&card->wait_q); |
| 917 | return; |
| 918 | } |
| 919 | |
| 920 | static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue, |
| 921 | struct qeth_qdio_out_buffer *buf) |
| 922 | { |
| 923 | int i; |
| 924 | struct sk_buff *skb; |
| 925 | |
| 926 | /* is PCI flag set on buffer? */ |
| 927 | if (buf->buffer->element[0].flags & 0x40) |
| 928 | atomic_dec(&queue->set_pci_flags_count); |
| 929 | |
| 930 | skb = skb_dequeue(&buf->skb_list); |
| 931 | while (skb) { |
| 932 | atomic_dec(&skb->users); |
| 933 | dev_kfree_skb_any(skb); |
| 934 | skb = skb_dequeue(&buf->skb_list); |
| 935 | } |
| 936 | qeth_eddp_buf_release_contexts(buf); |
| 937 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) { |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame^] | 938 | if (buf->buffer->element[i].addr && buf->is_header[i]) |
| 939 | kmem_cache_free(qeth_core_header_cache, |
| 940 | buf->buffer->element[i].addr); |
| 941 | buf->is_header[i] = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 942 | buf->buffer->element[i].length = 0; |
| 943 | buf->buffer->element[i].addr = NULL; |
| 944 | buf->buffer->element[i].flags = 0; |
| 945 | } |
| 946 | buf->next_element_to_fill = 0; |
| 947 | atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY); |
| 948 | } |
| 949 | |
| 950 | void qeth_clear_qdio_buffers(struct qeth_card *card) |
| 951 | { |
| 952 | int i, j; |
| 953 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 954 | QETH_DBF_TEXT(TRACE, 2, "clearqdbf"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 955 | /* clear outbound buffers to free skbs */ |
| 956 | for (i = 0; i < card->qdio.no_out_queues; ++i) |
| 957 | if (card->qdio.out_qs[i]) { |
| 958 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) |
| 959 | qeth_clear_output_buffer(card->qdio.out_qs[i], |
| 960 | &card->qdio.out_qs[i]->bufs[j]); |
| 961 | } |
| 962 | } |
| 963 | EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers); |
| 964 | |
| 965 | static void qeth_free_buffer_pool(struct qeth_card *card) |
| 966 | { |
| 967 | struct qeth_buffer_pool_entry *pool_entry, *tmp; |
| 968 | int i = 0; |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 969 | QETH_DBF_TEXT(TRACE, 5, "freepool"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 970 | list_for_each_entry_safe(pool_entry, tmp, |
| 971 | &card->qdio.init_pool.entry_list, init_list){ |
| 972 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) |
| 973 | free_page((unsigned long)pool_entry->elements[i]); |
| 974 | list_del(&pool_entry->init_list); |
| 975 | kfree(pool_entry); |
| 976 | } |
| 977 | } |
| 978 | |
| 979 | static void qeth_free_qdio_buffers(struct qeth_card *card) |
| 980 | { |
| 981 | int i, j; |
| 982 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 983 | QETH_DBF_TEXT(TRACE, 2, "freeqdbf"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 984 | if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) == |
| 985 | QETH_QDIO_UNINITIALIZED) |
| 986 | return; |
| 987 | kfree(card->qdio.in_q); |
| 988 | card->qdio.in_q = NULL; |
| 989 | /* inbound buffer pool */ |
| 990 | qeth_free_buffer_pool(card); |
| 991 | /* free outbound qdio_qs */ |
| 992 | if (card->qdio.out_qs) { |
| 993 | for (i = 0; i < card->qdio.no_out_queues; ++i) { |
| 994 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) |
| 995 | qeth_clear_output_buffer(card->qdio.out_qs[i], |
| 996 | &card->qdio.out_qs[i]->bufs[j]); |
| 997 | kfree(card->qdio.out_qs[i]); |
| 998 | } |
| 999 | kfree(card->qdio.out_qs); |
| 1000 | card->qdio.out_qs = NULL; |
| 1001 | } |
| 1002 | } |
| 1003 | |
| 1004 | static void qeth_clean_channel(struct qeth_channel *channel) |
| 1005 | { |
| 1006 | int cnt; |
| 1007 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1008 | QETH_DBF_TEXT(SETUP, 2, "freech"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1009 | for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) |
| 1010 | kfree(channel->iob[cnt].data); |
| 1011 | } |
| 1012 | |
| 1013 | static int qeth_is_1920_device(struct qeth_card *card) |
| 1014 | { |
| 1015 | int single_queue = 0; |
| 1016 | struct ccw_device *ccwdev; |
| 1017 | struct channelPath_dsc { |
| 1018 | u8 flags; |
| 1019 | u8 lsn; |
| 1020 | u8 desc; |
| 1021 | u8 chpid; |
| 1022 | u8 swla; |
| 1023 | u8 zeroes; |
| 1024 | u8 chla; |
| 1025 | u8 chpp; |
| 1026 | } *chp_dsc; |
| 1027 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1028 | QETH_DBF_TEXT(SETUP, 2, "chk_1920"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1029 | |
| 1030 | ccwdev = card->data.ccwdev; |
| 1031 | chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0); |
| 1032 | if (chp_dsc != NULL) { |
| 1033 | /* CHPP field bit 6 == 1 -> single queue */ |
| 1034 | single_queue = ((chp_dsc->chpp & 0x02) == 0x02); |
| 1035 | kfree(chp_dsc); |
| 1036 | } |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1037 | QETH_DBF_TEXT_(SETUP, 2, "rc:%x", single_queue); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1038 | return single_queue; |
| 1039 | } |
| 1040 | |
| 1041 | static void qeth_init_qdio_info(struct qeth_card *card) |
| 1042 | { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1043 | QETH_DBF_TEXT(SETUP, 4, "intqdinf"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1044 | atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); |
| 1045 | /* inbound */ |
| 1046 | card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT; |
| 1047 | card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT; |
| 1048 | card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count; |
| 1049 | INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list); |
| 1050 | INIT_LIST_HEAD(&card->qdio.init_pool.entry_list); |
| 1051 | } |
| 1052 | |
| 1053 | static void qeth_set_intial_options(struct qeth_card *card) |
| 1054 | { |
| 1055 | card->options.route4.type = NO_ROUTER; |
| 1056 | card->options.route6.type = NO_ROUTER; |
| 1057 | card->options.checksum_type = QETH_CHECKSUM_DEFAULT; |
| 1058 | card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS; |
| 1059 | card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL; |
| 1060 | card->options.fake_broadcast = 0; |
| 1061 | card->options.add_hhlen = DEFAULT_ADD_HHLEN; |
| 1062 | card->options.fake_ll = 0; |
| 1063 | card->options.performance_stats = 0; |
| 1064 | card->options.rx_sg_cb = QETH_RX_SG_CB; |
| 1065 | } |
| 1066 | |
| 1067 | static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread) |
| 1068 | { |
| 1069 | unsigned long flags; |
| 1070 | int rc = 0; |
| 1071 | |
| 1072 | spin_lock_irqsave(&card->thread_mask_lock, flags); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1073 | QETH_DBF_TEXT_(TRACE, 4, " %02x%02x%02x", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1074 | (u8) card->thread_start_mask, |
| 1075 | (u8) card->thread_allowed_mask, |
| 1076 | (u8) card->thread_running_mask); |
| 1077 | rc = (card->thread_start_mask & thread); |
| 1078 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| 1079 | return rc; |
| 1080 | } |
| 1081 | |
| 1082 | static void qeth_start_kernel_thread(struct work_struct *work) |
| 1083 | { |
| 1084 | struct qeth_card *card = container_of(work, struct qeth_card, |
| 1085 | kernel_thread_starter); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1086 | QETH_DBF_TEXT(TRACE , 2, "strthrd"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1087 | |
| 1088 | if (card->read.state != CH_STATE_UP && |
| 1089 | card->write.state != CH_STATE_UP) |
| 1090 | return; |
| 1091 | if (qeth_do_start_thread(card, QETH_RECOVER_THREAD)) |
| 1092 | kthread_run(card->discipline.recover, (void *) card, |
| 1093 | "qeth_recover"); |
| 1094 | } |
| 1095 | |
| 1096 | static int qeth_setup_card(struct qeth_card *card) |
| 1097 | { |
| 1098 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1099 | QETH_DBF_TEXT(SETUP, 2, "setupcrd"); |
| 1100 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1101 | |
| 1102 | card->read.state = CH_STATE_DOWN; |
| 1103 | card->write.state = CH_STATE_DOWN; |
| 1104 | card->data.state = CH_STATE_DOWN; |
| 1105 | card->state = CARD_STATE_DOWN; |
| 1106 | card->lan_online = 0; |
| 1107 | card->use_hard_stop = 0; |
| 1108 | card->dev = NULL; |
| 1109 | spin_lock_init(&card->vlanlock); |
| 1110 | spin_lock_init(&card->mclock); |
| 1111 | card->vlangrp = NULL; |
| 1112 | spin_lock_init(&card->lock); |
| 1113 | spin_lock_init(&card->ip_lock); |
| 1114 | spin_lock_init(&card->thread_mask_lock); |
| 1115 | card->thread_start_mask = 0; |
| 1116 | card->thread_allowed_mask = 0; |
| 1117 | card->thread_running_mask = 0; |
| 1118 | INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread); |
| 1119 | INIT_LIST_HEAD(&card->ip_list); |
| 1120 | card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL); |
| 1121 | if (!card->ip_tbd_list) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1122 | QETH_DBF_TEXT(SETUP, 0, "iptbdnom"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1123 | return -ENOMEM; |
| 1124 | } |
| 1125 | INIT_LIST_HEAD(card->ip_tbd_list); |
| 1126 | INIT_LIST_HEAD(&card->cmd_waiter_list); |
| 1127 | init_waitqueue_head(&card->wait_q); |
| 1128 | /* intial options */ |
| 1129 | qeth_set_intial_options(card); |
| 1130 | /* IP address takeover */ |
| 1131 | INIT_LIST_HEAD(&card->ipato.entries); |
| 1132 | card->ipato.enabled = 0; |
| 1133 | card->ipato.invert4 = 0; |
| 1134 | card->ipato.invert6 = 0; |
| 1135 | /* init QDIO stuff */ |
| 1136 | qeth_init_qdio_info(card); |
| 1137 | return 0; |
| 1138 | } |
| 1139 | |
| 1140 | static struct qeth_card *qeth_alloc_card(void) |
| 1141 | { |
| 1142 | struct qeth_card *card; |
| 1143 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1144 | QETH_DBF_TEXT(SETUP, 2, "alloccrd"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1145 | card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL); |
| 1146 | if (!card) |
| 1147 | return NULL; |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1148 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1149 | if (qeth_setup_channel(&card->read)) { |
| 1150 | kfree(card); |
| 1151 | return NULL; |
| 1152 | } |
| 1153 | if (qeth_setup_channel(&card->write)) { |
| 1154 | qeth_clean_channel(&card->read); |
| 1155 | kfree(card); |
| 1156 | return NULL; |
| 1157 | } |
| 1158 | card->options.layer2 = -1; |
| 1159 | return card; |
| 1160 | } |
| 1161 | |
| 1162 | static int qeth_determine_card_type(struct qeth_card *card) |
| 1163 | { |
| 1164 | int i = 0; |
| 1165 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1166 | QETH_DBF_TEXT(SETUP, 2, "detcdtyp"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1167 | |
| 1168 | card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT; |
| 1169 | card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; |
| 1170 | while (known_devices[i][4]) { |
| 1171 | if ((CARD_RDEV(card)->id.dev_type == known_devices[i][2]) && |
| 1172 | (CARD_RDEV(card)->id.dev_model == known_devices[i][3])) { |
| 1173 | card->info.type = known_devices[i][4]; |
| 1174 | card->qdio.no_out_queues = known_devices[i][8]; |
| 1175 | card->info.is_multicast_different = known_devices[i][9]; |
| 1176 | if (qeth_is_1920_device(card)) { |
| 1177 | PRINT_INFO("Priority Queueing not able " |
| 1178 | "due to hardware limitations!\n"); |
| 1179 | card->qdio.no_out_queues = 1; |
| 1180 | card->qdio.default_out_queue = 0; |
| 1181 | } |
| 1182 | return 0; |
| 1183 | } |
| 1184 | i++; |
| 1185 | } |
| 1186 | card->info.type = QETH_CARD_TYPE_UNKNOWN; |
| 1187 | PRINT_ERR("unknown card type on device %s\n", CARD_BUS_ID(card)); |
| 1188 | return -ENOENT; |
| 1189 | } |
| 1190 | |
| 1191 | static int qeth_clear_channel(struct qeth_channel *channel) |
| 1192 | { |
| 1193 | unsigned long flags; |
| 1194 | struct qeth_card *card; |
| 1195 | int rc; |
| 1196 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1197 | QETH_DBF_TEXT(TRACE, 3, "clearch"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1198 | card = CARD_FROM_CDEV(channel->ccwdev); |
| 1199 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
| 1200 | rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM); |
| 1201 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); |
| 1202 | |
| 1203 | if (rc) |
| 1204 | return rc; |
| 1205 | rc = wait_event_interruptible_timeout(card->wait_q, |
| 1206 | channel->state == CH_STATE_STOPPED, QETH_TIMEOUT); |
| 1207 | if (rc == -ERESTARTSYS) |
| 1208 | return rc; |
| 1209 | if (channel->state != CH_STATE_STOPPED) |
| 1210 | return -ETIME; |
| 1211 | channel->state = CH_STATE_DOWN; |
| 1212 | return 0; |
| 1213 | } |
| 1214 | |
| 1215 | static int qeth_halt_channel(struct qeth_channel *channel) |
| 1216 | { |
| 1217 | unsigned long flags; |
| 1218 | struct qeth_card *card; |
| 1219 | int rc; |
| 1220 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1221 | QETH_DBF_TEXT(TRACE, 3, "haltch"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1222 | card = CARD_FROM_CDEV(channel->ccwdev); |
| 1223 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
| 1224 | rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM); |
| 1225 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); |
| 1226 | |
| 1227 | if (rc) |
| 1228 | return rc; |
| 1229 | rc = wait_event_interruptible_timeout(card->wait_q, |
| 1230 | channel->state == CH_STATE_HALTED, QETH_TIMEOUT); |
| 1231 | if (rc == -ERESTARTSYS) |
| 1232 | return rc; |
| 1233 | if (channel->state != CH_STATE_HALTED) |
| 1234 | return -ETIME; |
| 1235 | return 0; |
| 1236 | } |
| 1237 | |
| 1238 | static int qeth_halt_channels(struct qeth_card *card) |
| 1239 | { |
| 1240 | int rc1 = 0, rc2 = 0, rc3 = 0; |
| 1241 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1242 | QETH_DBF_TEXT(TRACE, 3, "haltchs"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1243 | rc1 = qeth_halt_channel(&card->read); |
| 1244 | rc2 = qeth_halt_channel(&card->write); |
| 1245 | rc3 = qeth_halt_channel(&card->data); |
| 1246 | if (rc1) |
| 1247 | return rc1; |
| 1248 | if (rc2) |
| 1249 | return rc2; |
| 1250 | return rc3; |
| 1251 | } |
| 1252 | |
| 1253 | static int qeth_clear_channels(struct qeth_card *card) |
| 1254 | { |
| 1255 | int rc1 = 0, rc2 = 0, rc3 = 0; |
| 1256 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1257 | QETH_DBF_TEXT(TRACE, 3, "clearchs"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1258 | rc1 = qeth_clear_channel(&card->read); |
| 1259 | rc2 = qeth_clear_channel(&card->write); |
| 1260 | rc3 = qeth_clear_channel(&card->data); |
| 1261 | if (rc1) |
| 1262 | return rc1; |
| 1263 | if (rc2) |
| 1264 | return rc2; |
| 1265 | return rc3; |
| 1266 | } |
| 1267 | |
| 1268 | static int qeth_clear_halt_card(struct qeth_card *card, int halt) |
| 1269 | { |
| 1270 | int rc = 0; |
| 1271 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1272 | QETH_DBF_TEXT(TRACE, 3, "clhacrd"); |
| 1273 | QETH_DBF_HEX(TRACE, 3, &card, sizeof(void *)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1274 | |
| 1275 | if (halt) |
| 1276 | rc = qeth_halt_channels(card); |
| 1277 | if (rc) |
| 1278 | return rc; |
| 1279 | return qeth_clear_channels(card); |
| 1280 | } |
| 1281 | |
| 1282 | int qeth_qdio_clear_card(struct qeth_card *card, int use_halt) |
| 1283 | { |
| 1284 | int rc = 0; |
| 1285 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1286 | QETH_DBF_TEXT(TRACE, 3, "qdioclr"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1287 | switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED, |
| 1288 | QETH_QDIO_CLEANING)) { |
| 1289 | case QETH_QDIO_ESTABLISHED: |
| 1290 | if (card->info.type == QETH_CARD_TYPE_IQD) |
| 1291 | rc = qdio_cleanup(CARD_DDEV(card), |
| 1292 | QDIO_FLAG_CLEANUP_USING_HALT); |
| 1293 | else |
| 1294 | rc = qdio_cleanup(CARD_DDEV(card), |
| 1295 | QDIO_FLAG_CLEANUP_USING_CLEAR); |
| 1296 | if (rc) |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1297 | QETH_DBF_TEXT_(TRACE, 3, "1err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1298 | atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); |
| 1299 | break; |
| 1300 | case QETH_QDIO_CLEANING: |
| 1301 | return rc; |
| 1302 | default: |
| 1303 | break; |
| 1304 | } |
| 1305 | rc = qeth_clear_halt_card(card, use_halt); |
| 1306 | if (rc) |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1307 | QETH_DBF_TEXT_(TRACE, 3, "2err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1308 | card->state = CARD_STATE_DOWN; |
| 1309 | return rc; |
| 1310 | } |
| 1311 | EXPORT_SYMBOL_GPL(qeth_qdio_clear_card); |
| 1312 | |
| 1313 | static int qeth_read_conf_data(struct qeth_card *card, void **buffer, |
| 1314 | int *length) |
| 1315 | { |
| 1316 | struct ciw *ciw; |
| 1317 | char *rcd_buf; |
| 1318 | int ret; |
| 1319 | struct qeth_channel *channel = &card->data; |
| 1320 | unsigned long flags; |
| 1321 | |
| 1322 | /* |
| 1323 | * scan for RCD command in extended SenseID data |
| 1324 | */ |
| 1325 | ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD); |
| 1326 | if (!ciw || ciw->cmd == 0) |
| 1327 | return -EOPNOTSUPP; |
| 1328 | rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA); |
| 1329 | if (!rcd_buf) |
| 1330 | return -ENOMEM; |
| 1331 | |
| 1332 | channel->ccw.cmd_code = ciw->cmd; |
| 1333 | channel->ccw.cda = (__u32) __pa(rcd_buf); |
| 1334 | channel->ccw.count = ciw->count; |
| 1335 | channel->ccw.flags = CCW_FLAG_SLI; |
| 1336 | channel->state = CH_STATE_RCD; |
| 1337 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
| 1338 | ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw, |
| 1339 | QETH_RCD_PARM, LPM_ANYPATH, 0, |
| 1340 | QETH_RCD_TIMEOUT); |
| 1341 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); |
| 1342 | if (!ret) |
| 1343 | wait_event(card->wait_q, |
| 1344 | (channel->state == CH_STATE_RCD_DONE || |
| 1345 | channel->state == CH_STATE_DOWN)); |
| 1346 | if (channel->state == CH_STATE_DOWN) |
| 1347 | ret = -EIO; |
| 1348 | else |
| 1349 | channel->state = CH_STATE_DOWN; |
| 1350 | if (ret) { |
| 1351 | kfree(rcd_buf); |
| 1352 | *buffer = NULL; |
| 1353 | *length = 0; |
| 1354 | } else { |
| 1355 | *length = ciw->count; |
| 1356 | *buffer = rcd_buf; |
| 1357 | } |
| 1358 | return ret; |
| 1359 | } |
| 1360 | |
| 1361 | static int qeth_get_unitaddr(struct qeth_card *card) |
| 1362 | { |
| 1363 | int length; |
| 1364 | char *prcd; |
| 1365 | int rc; |
| 1366 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1367 | QETH_DBF_TEXT(SETUP, 2, "getunit"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1368 | rc = qeth_read_conf_data(card, (void **) &prcd, &length); |
| 1369 | if (rc) { |
| 1370 | PRINT_ERR("qeth_read_conf_data for device %s returned %i\n", |
| 1371 | CARD_DDEV_ID(card), rc); |
| 1372 | return rc; |
| 1373 | } |
| 1374 | card->info.chpid = prcd[30]; |
| 1375 | card->info.unit_addr2 = prcd[31]; |
| 1376 | card->info.cula = prcd[63]; |
| 1377 | card->info.guestlan = ((prcd[0x10] == _ascebc['V']) && |
| 1378 | (prcd[0x11] == _ascebc['M'])); |
| 1379 | kfree(prcd); |
| 1380 | return 0; |
| 1381 | } |
| 1382 | |
| 1383 | static void qeth_init_tokens(struct qeth_card *card) |
| 1384 | { |
| 1385 | card->token.issuer_rm_w = 0x00010103UL; |
| 1386 | card->token.cm_filter_w = 0x00010108UL; |
| 1387 | card->token.cm_connection_w = 0x0001010aUL; |
| 1388 | card->token.ulp_filter_w = 0x0001010bUL; |
| 1389 | card->token.ulp_connection_w = 0x0001010dUL; |
| 1390 | } |
| 1391 | |
| 1392 | static void qeth_init_func_level(struct qeth_card *card) |
| 1393 | { |
| 1394 | if (card->ipato.enabled) { |
| 1395 | if (card->info.type == QETH_CARD_TYPE_IQD) |
| 1396 | card->info.func_level = |
| 1397 | QETH_IDX_FUNC_LEVEL_IQD_ENA_IPAT; |
| 1398 | else |
| 1399 | card->info.func_level = |
| 1400 | QETH_IDX_FUNC_LEVEL_OSAE_ENA_IPAT; |
| 1401 | } else { |
| 1402 | if (card->info.type == QETH_CARD_TYPE_IQD) |
| 1403 | /*FIXME:why do we have same values for dis and ena for |
| 1404 | osae??? */ |
| 1405 | card->info.func_level = |
| 1406 | QETH_IDX_FUNC_LEVEL_IQD_DIS_IPAT; |
| 1407 | else |
| 1408 | card->info.func_level = |
| 1409 | QETH_IDX_FUNC_LEVEL_OSAE_DIS_IPAT; |
| 1410 | } |
| 1411 | } |
| 1412 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1413 | static int qeth_idx_activate_get_answer(struct qeth_channel *channel, |
| 1414 | void (*idx_reply_cb)(struct qeth_channel *, |
| 1415 | struct qeth_cmd_buffer *)) |
| 1416 | { |
| 1417 | struct qeth_cmd_buffer *iob; |
| 1418 | unsigned long flags; |
| 1419 | int rc; |
| 1420 | struct qeth_card *card; |
| 1421 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1422 | QETH_DBF_TEXT(SETUP, 2, "idxanswr"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1423 | card = CARD_FROM_CDEV(channel->ccwdev); |
| 1424 | iob = qeth_get_buffer(channel); |
| 1425 | iob->callback = idx_reply_cb; |
| 1426 | memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1)); |
| 1427 | channel->ccw.count = QETH_BUFSIZE; |
| 1428 | channel->ccw.cda = (__u32) __pa(iob->data); |
| 1429 | |
| 1430 | wait_event(card->wait_q, |
| 1431 | atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1432 | QETH_DBF_TEXT(SETUP, 6, "noirqpnd"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1433 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
| 1434 | rc = ccw_device_start(channel->ccwdev, |
| 1435 | &channel->ccw, (addr_t) iob, 0, 0); |
| 1436 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); |
| 1437 | |
| 1438 | if (rc) { |
Frank Blaschka | 14cc21b | 2008-06-06 12:37:46 +0200 | [diff] [blame] | 1439 | QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1440 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1441 | atomic_set(&channel->irq_pending, 0); |
| 1442 | wake_up(&card->wait_q); |
| 1443 | return rc; |
| 1444 | } |
| 1445 | rc = wait_event_interruptible_timeout(card->wait_q, |
| 1446 | channel->state == CH_STATE_UP, QETH_TIMEOUT); |
| 1447 | if (rc == -ERESTARTSYS) |
| 1448 | return rc; |
| 1449 | if (channel->state != CH_STATE_UP) { |
| 1450 | rc = -ETIME; |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1451 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1452 | qeth_clear_cmd_buffers(channel); |
| 1453 | } else |
| 1454 | rc = 0; |
| 1455 | return rc; |
| 1456 | } |
| 1457 | |
| 1458 | static int qeth_idx_activate_channel(struct qeth_channel *channel, |
| 1459 | void (*idx_reply_cb)(struct qeth_channel *, |
| 1460 | struct qeth_cmd_buffer *)) |
| 1461 | { |
| 1462 | struct qeth_card *card; |
| 1463 | struct qeth_cmd_buffer *iob; |
| 1464 | unsigned long flags; |
| 1465 | __u16 temp; |
| 1466 | __u8 tmp; |
| 1467 | int rc; |
Cornelia Huck | f06f6f3 | 2008-06-06 12:37:45 +0200 | [diff] [blame] | 1468 | struct ccw_dev_id temp_devid; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1469 | |
| 1470 | card = CARD_FROM_CDEV(channel->ccwdev); |
| 1471 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1472 | QETH_DBF_TEXT(SETUP, 2, "idxactch"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1473 | |
| 1474 | iob = qeth_get_buffer(channel); |
| 1475 | iob->callback = idx_reply_cb; |
| 1476 | memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1)); |
| 1477 | channel->ccw.count = IDX_ACTIVATE_SIZE; |
| 1478 | channel->ccw.cda = (__u32) __pa(iob->data); |
| 1479 | if (channel == &card->write) { |
| 1480 | memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE); |
| 1481 | memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), |
| 1482 | &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); |
| 1483 | card->seqno.trans_hdr++; |
| 1484 | } else { |
| 1485 | memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE); |
| 1486 | memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), |
| 1487 | &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); |
| 1488 | } |
| 1489 | tmp = ((__u8)card->info.portno) | 0x80; |
| 1490 | memcpy(QETH_IDX_ACT_PNO(iob->data), &tmp, 1); |
| 1491 | memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data), |
| 1492 | &card->token.issuer_rm_w, QETH_MPC_TOKEN_LENGTH); |
| 1493 | memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data), |
| 1494 | &card->info.func_level, sizeof(__u16)); |
Cornelia Huck | f06f6f3 | 2008-06-06 12:37:45 +0200 | [diff] [blame] | 1495 | ccw_device_get_id(CARD_DDEV(card), &temp_devid); |
| 1496 | memcpy(QETH_IDX_ACT_QDIO_DEV_CUA(iob->data), &temp_devid.devno, 2); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1497 | temp = (card->info.cula << 8) + card->info.unit_addr2; |
| 1498 | memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2); |
| 1499 | |
| 1500 | wait_event(card->wait_q, |
| 1501 | atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1502 | QETH_DBF_TEXT(SETUP, 6, "noirqpnd"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1503 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
| 1504 | rc = ccw_device_start(channel->ccwdev, |
| 1505 | &channel->ccw, (addr_t) iob, 0, 0); |
| 1506 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); |
| 1507 | |
| 1508 | if (rc) { |
Frank Blaschka | 14cc21b | 2008-06-06 12:37:46 +0200 | [diff] [blame] | 1509 | QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n", |
| 1510 | rc); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1511 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1512 | atomic_set(&channel->irq_pending, 0); |
| 1513 | wake_up(&card->wait_q); |
| 1514 | return rc; |
| 1515 | } |
| 1516 | rc = wait_event_interruptible_timeout(card->wait_q, |
| 1517 | channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT); |
| 1518 | if (rc == -ERESTARTSYS) |
| 1519 | return rc; |
| 1520 | if (channel->state != CH_STATE_ACTIVATING) { |
| 1521 | PRINT_WARN("IDX activate timed out!\n"); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1522 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1523 | qeth_clear_cmd_buffers(channel); |
| 1524 | return -ETIME; |
| 1525 | } |
| 1526 | return qeth_idx_activate_get_answer(channel, idx_reply_cb); |
| 1527 | } |
| 1528 | |
| 1529 | static int qeth_peer_func_level(int level) |
| 1530 | { |
| 1531 | if ((level & 0xff) == 8) |
| 1532 | return (level & 0xff) + 0x400; |
| 1533 | if (((level >> 8) & 3) == 1) |
| 1534 | return (level & 0xff) + 0x200; |
| 1535 | return level; |
| 1536 | } |
| 1537 | |
| 1538 | static void qeth_idx_write_cb(struct qeth_channel *channel, |
| 1539 | struct qeth_cmd_buffer *iob) |
| 1540 | { |
| 1541 | struct qeth_card *card; |
| 1542 | __u16 temp; |
| 1543 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1544 | QETH_DBF_TEXT(SETUP , 2, "idxwrcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1545 | |
| 1546 | if (channel->state == CH_STATE_DOWN) { |
| 1547 | channel->state = CH_STATE_ACTIVATING; |
| 1548 | goto out; |
| 1549 | } |
| 1550 | card = CARD_FROM_CDEV(channel->ccwdev); |
| 1551 | |
| 1552 | if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { |
| 1553 | if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19) |
| 1554 | PRINT_ERR("IDX_ACTIVATE on write channel device %s: " |
| 1555 | "adapter exclusively used by another host\n", |
| 1556 | CARD_WDEV_ID(card)); |
| 1557 | else |
| 1558 | PRINT_ERR("IDX_ACTIVATE on write channel device %s: " |
| 1559 | "negative reply\n", CARD_WDEV_ID(card)); |
| 1560 | goto out; |
| 1561 | } |
| 1562 | memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); |
| 1563 | if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) { |
| 1564 | PRINT_WARN("IDX_ACTIVATE on write channel device %s: " |
| 1565 | "function level mismatch " |
| 1566 | "(sent: 0x%x, received: 0x%x)\n", |
| 1567 | CARD_WDEV_ID(card), card->info.func_level, temp); |
| 1568 | goto out; |
| 1569 | } |
| 1570 | channel->state = CH_STATE_UP; |
| 1571 | out: |
| 1572 | qeth_release_buffer(channel, iob); |
| 1573 | } |
| 1574 | |
| 1575 | static void qeth_idx_read_cb(struct qeth_channel *channel, |
| 1576 | struct qeth_cmd_buffer *iob) |
| 1577 | { |
| 1578 | struct qeth_card *card; |
| 1579 | __u16 temp; |
| 1580 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1581 | QETH_DBF_TEXT(SETUP , 2, "idxrdcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1582 | if (channel->state == CH_STATE_DOWN) { |
| 1583 | channel->state = CH_STATE_ACTIVATING; |
| 1584 | goto out; |
| 1585 | } |
| 1586 | |
| 1587 | card = CARD_FROM_CDEV(channel->ccwdev); |
| 1588 | if (qeth_check_idx_response(iob->data)) |
| 1589 | goto out; |
| 1590 | |
| 1591 | if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { |
| 1592 | if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == 0x19) |
| 1593 | PRINT_ERR("IDX_ACTIVATE on read channel device %s: " |
| 1594 | "adapter exclusively used by another host\n", |
| 1595 | CARD_RDEV_ID(card)); |
| 1596 | else |
| 1597 | PRINT_ERR("IDX_ACTIVATE on read channel device %s: " |
| 1598 | "negative reply\n", CARD_RDEV_ID(card)); |
| 1599 | goto out; |
| 1600 | } |
| 1601 | |
| 1602 | /** |
| 1603 | * temporary fix for microcode bug |
| 1604 | * to revert it,replace OR by AND |
| 1605 | */ |
| 1606 | if ((!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) || |
| 1607 | (card->info.type == QETH_CARD_TYPE_OSAE)) |
| 1608 | card->info.portname_required = 1; |
| 1609 | |
| 1610 | memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); |
| 1611 | if (temp != qeth_peer_func_level(card->info.func_level)) { |
| 1612 | PRINT_WARN("IDX_ACTIVATE on read channel device %s: function " |
| 1613 | "level mismatch (sent: 0x%x, received: 0x%x)\n", |
| 1614 | CARD_RDEV_ID(card), card->info.func_level, temp); |
| 1615 | goto out; |
| 1616 | } |
| 1617 | memcpy(&card->token.issuer_rm_r, |
| 1618 | QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data), |
| 1619 | QETH_MPC_TOKEN_LENGTH); |
| 1620 | memcpy(&card->info.mcl_level[0], |
| 1621 | QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH); |
| 1622 | channel->state = CH_STATE_UP; |
| 1623 | out: |
| 1624 | qeth_release_buffer(channel, iob); |
| 1625 | } |
| 1626 | |
| 1627 | void qeth_prepare_control_data(struct qeth_card *card, int len, |
| 1628 | struct qeth_cmd_buffer *iob) |
| 1629 | { |
| 1630 | qeth_setup_ccw(&card->write, iob->data, len); |
| 1631 | iob->callback = qeth_release_buffer; |
| 1632 | |
| 1633 | memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), |
| 1634 | &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); |
| 1635 | card->seqno.trans_hdr++; |
| 1636 | memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data), |
| 1637 | &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH); |
| 1638 | card->seqno.pdu_hdr++; |
| 1639 | memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data), |
| 1640 | &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1641 | QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1642 | } |
| 1643 | EXPORT_SYMBOL_GPL(qeth_prepare_control_data); |
| 1644 | |
| 1645 | int qeth_send_control_data(struct qeth_card *card, int len, |
| 1646 | struct qeth_cmd_buffer *iob, |
| 1647 | int (*reply_cb)(struct qeth_card *, struct qeth_reply *, |
| 1648 | unsigned long), |
| 1649 | void *reply_param) |
| 1650 | { |
| 1651 | int rc; |
| 1652 | unsigned long flags; |
| 1653 | struct qeth_reply *reply = NULL; |
| 1654 | unsigned long timeout; |
| 1655 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1656 | QETH_DBF_TEXT(TRACE, 2, "sendctl"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1657 | |
| 1658 | reply = qeth_alloc_reply(card); |
| 1659 | if (!reply) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1660 | return -ENOMEM; |
| 1661 | } |
| 1662 | reply->callback = reply_cb; |
| 1663 | reply->param = reply_param; |
| 1664 | if (card->state == CARD_STATE_DOWN) |
| 1665 | reply->seqno = QETH_IDX_COMMAND_SEQNO; |
| 1666 | else |
| 1667 | reply->seqno = card->seqno.ipa++; |
| 1668 | init_waitqueue_head(&reply->wait_q); |
| 1669 | spin_lock_irqsave(&card->lock, flags); |
| 1670 | list_add_tail(&reply->list, &card->cmd_waiter_list); |
| 1671 | spin_unlock_irqrestore(&card->lock, flags); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1672 | QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1673 | |
| 1674 | while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ; |
| 1675 | qeth_prepare_control_data(card, len, iob); |
| 1676 | |
| 1677 | if (IS_IPA(iob->data)) |
| 1678 | timeout = jiffies + QETH_IPA_TIMEOUT; |
| 1679 | else |
| 1680 | timeout = jiffies + QETH_TIMEOUT; |
| 1681 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1682 | QETH_DBF_TEXT(TRACE, 6, "noirqpnd"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1683 | spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); |
| 1684 | rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, |
| 1685 | (addr_t) iob, 0, 0); |
| 1686 | spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); |
| 1687 | if (rc) { |
| 1688 | PRINT_WARN("qeth_send_control_data: " |
| 1689 | "ccw_device_start rc = %i\n", rc); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1690 | QETH_DBF_TEXT_(TRACE, 2, " err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1691 | spin_lock_irqsave(&card->lock, flags); |
| 1692 | list_del_init(&reply->list); |
| 1693 | qeth_put_reply(reply); |
| 1694 | spin_unlock_irqrestore(&card->lock, flags); |
| 1695 | qeth_release_buffer(iob->channel, iob); |
| 1696 | atomic_set(&card->write.irq_pending, 0); |
| 1697 | wake_up(&card->wait_q); |
| 1698 | return rc; |
| 1699 | } |
| 1700 | while (!atomic_read(&reply->received)) { |
| 1701 | if (time_after(jiffies, timeout)) { |
| 1702 | spin_lock_irqsave(&reply->card->lock, flags); |
| 1703 | list_del_init(&reply->list); |
| 1704 | spin_unlock_irqrestore(&reply->card->lock, flags); |
| 1705 | reply->rc = -ETIME; |
| 1706 | atomic_inc(&reply->received); |
| 1707 | wake_up(&reply->wait_q); |
| 1708 | } |
| 1709 | cpu_relax(); |
| 1710 | }; |
| 1711 | rc = reply->rc; |
| 1712 | qeth_put_reply(reply); |
| 1713 | return rc; |
| 1714 | } |
| 1715 | EXPORT_SYMBOL_GPL(qeth_send_control_data); |
| 1716 | |
| 1717 | static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply, |
| 1718 | unsigned long data) |
| 1719 | { |
| 1720 | struct qeth_cmd_buffer *iob; |
| 1721 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1722 | QETH_DBF_TEXT(SETUP, 2, "cmenblcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1723 | |
| 1724 | iob = (struct qeth_cmd_buffer *) data; |
| 1725 | memcpy(&card->token.cm_filter_r, |
| 1726 | QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data), |
| 1727 | QETH_MPC_TOKEN_LENGTH); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1728 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1729 | return 0; |
| 1730 | } |
| 1731 | |
| 1732 | static int qeth_cm_enable(struct qeth_card *card) |
| 1733 | { |
| 1734 | int rc; |
| 1735 | struct qeth_cmd_buffer *iob; |
| 1736 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1737 | QETH_DBF_TEXT(SETUP, 2, "cmenable"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1738 | |
| 1739 | iob = qeth_wait_for_buffer(&card->write); |
| 1740 | memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE); |
| 1741 | memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data), |
| 1742 | &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH); |
| 1743 | memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data), |
| 1744 | &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH); |
| 1745 | |
| 1746 | rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob, |
| 1747 | qeth_cm_enable_cb, NULL); |
| 1748 | return rc; |
| 1749 | } |
| 1750 | |
| 1751 | static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply, |
| 1752 | unsigned long data) |
| 1753 | { |
| 1754 | |
| 1755 | struct qeth_cmd_buffer *iob; |
| 1756 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1757 | QETH_DBF_TEXT(SETUP, 2, "cmsetpcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1758 | |
| 1759 | iob = (struct qeth_cmd_buffer *) data; |
| 1760 | memcpy(&card->token.cm_connection_r, |
| 1761 | QETH_CM_SETUP_RESP_DEST_ADDR(iob->data), |
| 1762 | QETH_MPC_TOKEN_LENGTH); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1763 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1764 | return 0; |
| 1765 | } |
| 1766 | |
| 1767 | static int qeth_cm_setup(struct qeth_card *card) |
| 1768 | { |
| 1769 | int rc; |
| 1770 | struct qeth_cmd_buffer *iob; |
| 1771 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1772 | QETH_DBF_TEXT(SETUP, 2, "cmsetup"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1773 | |
| 1774 | iob = qeth_wait_for_buffer(&card->write); |
| 1775 | memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE); |
| 1776 | memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data), |
| 1777 | &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH); |
| 1778 | memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data), |
| 1779 | &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH); |
| 1780 | memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data), |
| 1781 | &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH); |
| 1782 | rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob, |
| 1783 | qeth_cm_setup_cb, NULL); |
| 1784 | return rc; |
| 1785 | |
| 1786 | } |
| 1787 | |
| 1788 | static inline int qeth_get_initial_mtu_for_card(struct qeth_card *card) |
| 1789 | { |
| 1790 | switch (card->info.type) { |
| 1791 | case QETH_CARD_TYPE_UNKNOWN: |
| 1792 | return 1500; |
| 1793 | case QETH_CARD_TYPE_IQD: |
| 1794 | return card->info.max_mtu; |
| 1795 | case QETH_CARD_TYPE_OSAE: |
| 1796 | switch (card->info.link_type) { |
| 1797 | case QETH_LINK_TYPE_HSTR: |
| 1798 | case QETH_LINK_TYPE_LANE_TR: |
| 1799 | return 2000; |
| 1800 | default: |
| 1801 | return 1492; |
| 1802 | } |
| 1803 | default: |
| 1804 | return 1500; |
| 1805 | } |
| 1806 | } |
| 1807 | |
| 1808 | static inline int qeth_get_max_mtu_for_card(int cardtype) |
| 1809 | { |
| 1810 | switch (cardtype) { |
| 1811 | |
| 1812 | case QETH_CARD_TYPE_UNKNOWN: |
| 1813 | case QETH_CARD_TYPE_OSAE: |
| 1814 | case QETH_CARD_TYPE_OSN: |
| 1815 | return 61440; |
| 1816 | case QETH_CARD_TYPE_IQD: |
| 1817 | return 57344; |
| 1818 | default: |
| 1819 | return 1500; |
| 1820 | } |
| 1821 | } |
| 1822 | |
| 1823 | static inline int qeth_get_mtu_out_of_mpc(int cardtype) |
| 1824 | { |
| 1825 | switch (cardtype) { |
| 1826 | case QETH_CARD_TYPE_IQD: |
| 1827 | return 1; |
| 1828 | default: |
| 1829 | return 0; |
| 1830 | } |
| 1831 | } |
| 1832 | |
| 1833 | static inline int qeth_get_mtu_outof_framesize(int framesize) |
| 1834 | { |
| 1835 | switch (framesize) { |
| 1836 | case 0x4000: |
| 1837 | return 8192; |
| 1838 | case 0x6000: |
| 1839 | return 16384; |
| 1840 | case 0xa000: |
| 1841 | return 32768; |
| 1842 | case 0xffff: |
| 1843 | return 57344; |
| 1844 | default: |
| 1845 | return 0; |
| 1846 | } |
| 1847 | } |
| 1848 | |
| 1849 | static inline int qeth_mtu_is_valid(struct qeth_card *card, int mtu) |
| 1850 | { |
| 1851 | switch (card->info.type) { |
| 1852 | case QETH_CARD_TYPE_OSAE: |
| 1853 | return ((mtu >= 576) && (mtu <= 61440)); |
| 1854 | case QETH_CARD_TYPE_IQD: |
| 1855 | return ((mtu >= 576) && |
| 1856 | (mtu <= card->info.max_mtu + 4096 - 32)); |
| 1857 | case QETH_CARD_TYPE_OSN: |
| 1858 | case QETH_CARD_TYPE_UNKNOWN: |
| 1859 | default: |
| 1860 | return 1; |
| 1861 | } |
| 1862 | } |
| 1863 | |
| 1864 | static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply, |
| 1865 | unsigned long data) |
| 1866 | { |
| 1867 | |
| 1868 | __u16 mtu, framesize; |
| 1869 | __u16 len; |
| 1870 | __u8 link_type; |
| 1871 | struct qeth_cmd_buffer *iob; |
| 1872 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1873 | QETH_DBF_TEXT(SETUP, 2, "ulpenacb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1874 | |
| 1875 | iob = (struct qeth_cmd_buffer *) data; |
| 1876 | memcpy(&card->token.ulp_filter_r, |
| 1877 | QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data), |
| 1878 | QETH_MPC_TOKEN_LENGTH); |
| 1879 | if (qeth_get_mtu_out_of_mpc(card->info.type)) { |
| 1880 | memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2); |
| 1881 | mtu = qeth_get_mtu_outof_framesize(framesize); |
| 1882 | if (!mtu) { |
| 1883 | iob->rc = -EINVAL; |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1884 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1885 | return 0; |
| 1886 | } |
| 1887 | card->info.max_mtu = mtu; |
| 1888 | card->info.initial_mtu = mtu; |
| 1889 | card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE; |
| 1890 | } else { |
| 1891 | card->info.initial_mtu = qeth_get_initial_mtu_for_card(card); |
| 1892 | card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type); |
| 1893 | card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT; |
| 1894 | } |
| 1895 | |
| 1896 | memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2); |
| 1897 | if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) { |
| 1898 | memcpy(&link_type, |
| 1899 | QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1); |
| 1900 | card->info.link_type = link_type; |
| 1901 | } else |
| 1902 | card->info.link_type = 0; |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1903 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1904 | return 0; |
| 1905 | } |
| 1906 | |
| 1907 | static int qeth_ulp_enable(struct qeth_card *card) |
| 1908 | { |
| 1909 | int rc; |
| 1910 | char prot_type; |
| 1911 | struct qeth_cmd_buffer *iob; |
| 1912 | |
| 1913 | /*FIXME: trace view callbacks*/ |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1914 | QETH_DBF_TEXT(SETUP, 2, "ulpenabl"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1915 | |
| 1916 | iob = qeth_wait_for_buffer(&card->write); |
| 1917 | memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE); |
| 1918 | |
| 1919 | *(QETH_ULP_ENABLE_LINKNUM(iob->data)) = |
| 1920 | (__u8) card->info.portno; |
| 1921 | if (card->options.layer2) |
| 1922 | if (card->info.type == QETH_CARD_TYPE_OSN) |
| 1923 | prot_type = QETH_PROT_OSN2; |
| 1924 | else |
| 1925 | prot_type = QETH_PROT_LAYER2; |
| 1926 | else |
| 1927 | prot_type = QETH_PROT_TCPIP; |
| 1928 | |
| 1929 | memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1); |
| 1930 | memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data), |
| 1931 | &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); |
| 1932 | memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data), |
| 1933 | &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH); |
| 1934 | memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data), |
| 1935 | card->info.portname, 9); |
| 1936 | rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob, |
| 1937 | qeth_ulp_enable_cb, NULL); |
| 1938 | return rc; |
| 1939 | |
| 1940 | } |
| 1941 | |
| 1942 | static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply, |
| 1943 | unsigned long data) |
| 1944 | { |
| 1945 | struct qeth_cmd_buffer *iob; |
| 1946 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1947 | QETH_DBF_TEXT(SETUP, 2, "ulpstpcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1948 | |
| 1949 | iob = (struct qeth_cmd_buffer *) data; |
| 1950 | memcpy(&card->token.ulp_connection_r, |
| 1951 | QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), |
| 1952 | QETH_MPC_TOKEN_LENGTH); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1953 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1954 | return 0; |
| 1955 | } |
| 1956 | |
| 1957 | static int qeth_ulp_setup(struct qeth_card *card) |
| 1958 | { |
| 1959 | int rc; |
| 1960 | __u16 temp; |
| 1961 | struct qeth_cmd_buffer *iob; |
| 1962 | struct ccw_dev_id dev_id; |
| 1963 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1964 | QETH_DBF_TEXT(SETUP, 2, "ulpsetup"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1965 | |
| 1966 | iob = qeth_wait_for_buffer(&card->write); |
| 1967 | memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE); |
| 1968 | |
| 1969 | memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data), |
| 1970 | &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); |
| 1971 | memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data), |
| 1972 | &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH); |
| 1973 | memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data), |
| 1974 | &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH); |
| 1975 | |
| 1976 | ccw_device_get_id(CARD_DDEV(card), &dev_id); |
| 1977 | memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2); |
| 1978 | temp = (card->info.cula << 8) + card->info.unit_addr2; |
| 1979 | memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2); |
| 1980 | rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob, |
| 1981 | qeth_ulp_setup_cb, NULL); |
| 1982 | return rc; |
| 1983 | } |
| 1984 | |
| 1985 | static int qeth_alloc_qdio_buffers(struct qeth_card *card) |
| 1986 | { |
| 1987 | int i, j; |
| 1988 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1989 | QETH_DBF_TEXT(SETUP, 2, "allcqdbf"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1990 | |
| 1991 | if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED, |
| 1992 | QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED) |
| 1993 | return 0; |
| 1994 | |
| 1995 | card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q), |
Ursula Braun | 508b3c4 | 2008-04-01 10:26:54 +0200 | [diff] [blame] | 1996 | GFP_KERNEL); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1997 | if (!card->qdio.in_q) |
| 1998 | goto out_nomem; |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1999 | QETH_DBF_TEXT(SETUP, 2, "inq"); |
| 2000 | QETH_DBF_HEX(SETUP, 2, &card->qdio.in_q, sizeof(void *)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2001 | memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q)); |
| 2002 | /* give inbound qeth_qdio_buffers their qdio_buffers */ |
| 2003 | for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) |
| 2004 | card->qdio.in_q->bufs[i].buffer = |
| 2005 | &card->qdio.in_q->qdio_bufs[i]; |
| 2006 | /* inbound buffer pool */ |
| 2007 | if (qeth_alloc_buffer_pool(card)) |
| 2008 | goto out_freeinq; |
| 2009 | /* outbound */ |
| 2010 | card->qdio.out_qs = |
| 2011 | kmalloc(card->qdio.no_out_queues * |
| 2012 | sizeof(struct qeth_qdio_out_q *), GFP_KERNEL); |
| 2013 | if (!card->qdio.out_qs) |
| 2014 | goto out_freepool; |
| 2015 | for (i = 0; i < card->qdio.no_out_queues; ++i) { |
| 2016 | card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q), |
Ursula Braun | 508b3c4 | 2008-04-01 10:26:54 +0200 | [diff] [blame] | 2017 | GFP_KERNEL); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2018 | if (!card->qdio.out_qs[i]) |
| 2019 | goto out_freeoutq; |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2020 | QETH_DBF_TEXT_(SETUP, 2, "outq %i", i); |
| 2021 | QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2022 | memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q)); |
| 2023 | card->qdio.out_qs[i]->queue_no = i; |
| 2024 | /* give outbound qeth_qdio_buffers their qdio_buffers */ |
| 2025 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { |
| 2026 | card->qdio.out_qs[i]->bufs[j].buffer = |
| 2027 | &card->qdio.out_qs[i]->qdio_bufs[j]; |
| 2028 | skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j]. |
| 2029 | skb_list); |
| 2030 | lockdep_set_class( |
| 2031 | &card->qdio.out_qs[i]->bufs[j].skb_list.lock, |
| 2032 | &qdio_out_skb_queue_key); |
| 2033 | INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list); |
| 2034 | } |
| 2035 | } |
| 2036 | return 0; |
| 2037 | |
| 2038 | out_freeoutq: |
| 2039 | while (i > 0) |
| 2040 | kfree(card->qdio.out_qs[--i]); |
| 2041 | kfree(card->qdio.out_qs); |
| 2042 | card->qdio.out_qs = NULL; |
| 2043 | out_freepool: |
| 2044 | qeth_free_buffer_pool(card); |
| 2045 | out_freeinq: |
| 2046 | kfree(card->qdio.in_q); |
| 2047 | card->qdio.in_q = NULL; |
| 2048 | out_nomem: |
| 2049 | atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); |
| 2050 | return -ENOMEM; |
| 2051 | } |
| 2052 | |
| 2053 | static void qeth_create_qib_param_field(struct qeth_card *card, |
| 2054 | char *param_field) |
| 2055 | { |
| 2056 | |
| 2057 | param_field[0] = _ascebc['P']; |
| 2058 | param_field[1] = _ascebc['C']; |
| 2059 | param_field[2] = _ascebc['I']; |
| 2060 | param_field[3] = _ascebc['T']; |
| 2061 | *((unsigned int *) (¶m_field[4])) = QETH_PCI_THRESHOLD_A(card); |
| 2062 | *((unsigned int *) (¶m_field[8])) = QETH_PCI_THRESHOLD_B(card); |
| 2063 | *((unsigned int *) (¶m_field[12])) = QETH_PCI_TIMER_VALUE(card); |
| 2064 | } |
| 2065 | |
| 2066 | static void qeth_create_qib_param_field_blkt(struct qeth_card *card, |
| 2067 | char *param_field) |
| 2068 | { |
| 2069 | param_field[16] = _ascebc['B']; |
| 2070 | param_field[17] = _ascebc['L']; |
| 2071 | param_field[18] = _ascebc['K']; |
| 2072 | param_field[19] = _ascebc['T']; |
| 2073 | *((unsigned int *) (¶m_field[20])) = card->info.blkt.time_total; |
| 2074 | *((unsigned int *) (¶m_field[24])) = card->info.blkt.inter_packet; |
| 2075 | *((unsigned int *) (¶m_field[28])) = |
| 2076 | card->info.blkt.inter_packet_jumbo; |
| 2077 | } |
| 2078 | |
| 2079 | static int qeth_qdio_activate(struct qeth_card *card) |
| 2080 | { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2081 | QETH_DBF_TEXT(SETUP, 3, "qdioact"); |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2082 | return qdio_activate(CARD_DDEV(card)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2083 | } |
| 2084 | |
| 2085 | static int qeth_dm_act(struct qeth_card *card) |
| 2086 | { |
| 2087 | int rc; |
| 2088 | struct qeth_cmd_buffer *iob; |
| 2089 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2090 | QETH_DBF_TEXT(SETUP, 2, "dmact"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2091 | |
| 2092 | iob = qeth_wait_for_buffer(&card->write); |
| 2093 | memcpy(iob->data, DM_ACT, DM_ACT_SIZE); |
| 2094 | |
| 2095 | memcpy(QETH_DM_ACT_DEST_ADDR(iob->data), |
| 2096 | &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); |
| 2097 | memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data), |
| 2098 | &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); |
| 2099 | rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL); |
| 2100 | return rc; |
| 2101 | } |
| 2102 | |
| 2103 | static int qeth_mpc_initialize(struct qeth_card *card) |
| 2104 | { |
| 2105 | int rc; |
| 2106 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2107 | QETH_DBF_TEXT(SETUP, 2, "mpcinit"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2108 | |
| 2109 | rc = qeth_issue_next_read(card); |
| 2110 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2111 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2112 | return rc; |
| 2113 | } |
| 2114 | rc = qeth_cm_enable(card); |
| 2115 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2116 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2117 | goto out_qdio; |
| 2118 | } |
| 2119 | rc = qeth_cm_setup(card); |
| 2120 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2121 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2122 | goto out_qdio; |
| 2123 | } |
| 2124 | rc = qeth_ulp_enable(card); |
| 2125 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2126 | QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2127 | goto out_qdio; |
| 2128 | } |
| 2129 | rc = qeth_ulp_setup(card); |
| 2130 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2131 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2132 | goto out_qdio; |
| 2133 | } |
| 2134 | rc = qeth_alloc_qdio_buffers(card); |
| 2135 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2136 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2137 | goto out_qdio; |
| 2138 | } |
| 2139 | rc = qeth_qdio_establish(card); |
| 2140 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2141 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2142 | qeth_free_qdio_buffers(card); |
| 2143 | goto out_qdio; |
| 2144 | } |
| 2145 | rc = qeth_qdio_activate(card); |
| 2146 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2147 | QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2148 | goto out_qdio; |
| 2149 | } |
| 2150 | rc = qeth_dm_act(card); |
| 2151 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2152 | QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2153 | goto out_qdio; |
| 2154 | } |
| 2155 | |
| 2156 | return 0; |
| 2157 | out_qdio: |
| 2158 | qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD); |
| 2159 | return rc; |
| 2160 | } |
| 2161 | |
| 2162 | static void qeth_print_status_with_portname(struct qeth_card *card) |
| 2163 | { |
| 2164 | char dbf_text[15]; |
| 2165 | int i; |
| 2166 | |
| 2167 | sprintf(dbf_text, "%s", card->info.portname + 1); |
| 2168 | for (i = 0; i < 8; i++) |
| 2169 | dbf_text[i] = |
| 2170 | (char) _ebcasc[(__u8) dbf_text[i]]; |
| 2171 | dbf_text[8] = 0; |
| 2172 | PRINT_INFO("Device %s/%s/%s is a%s card%s%s%s\n" |
| 2173 | "with link type %s (portname: %s)\n", |
| 2174 | CARD_RDEV_ID(card), |
| 2175 | CARD_WDEV_ID(card), |
| 2176 | CARD_DDEV_ID(card), |
| 2177 | qeth_get_cardname(card), |
| 2178 | (card->info.mcl_level[0]) ? " (level: " : "", |
| 2179 | (card->info.mcl_level[0]) ? card->info.mcl_level : "", |
| 2180 | (card->info.mcl_level[0]) ? ")" : "", |
| 2181 | qeth_get_cardname_short(card), |
| 2182 | dbf_text); |
| 2183 | |
| 2184 | } |
| 2185 | |
| 2186 | static void qeth_print_status_no_portname(struct qeth_card *card) |
| 2187 | { |
| 2188 | if (card->info.portname[0]) |
| 2189 | PRINT_INFO("Device %s/%s/%s is a%s " |
| 2190 | "card%s%s%s\nwith link type %s " |
| 2191 | "(no portname needed by interface).\n", |
| 2192 | CARD_RDEV_ID(card), |
| 2193 | CARD_WDEV_ID(card), |
| 2194 | CARD_DDEV_ID(card), |
| 2195 | qeth_get_cardname(card), |
| 2196 | (card->info.mcl_level[0]) ? " (level: " : "", |
| 2197 | (card->info.mcl_level[0]) ? card->info.mcl_level : "", |
| 2198 | (card->info.mcl_level[0]) ? ")" : "", |
| 2199 | qeth_get_cardname_short(card)); |
| 2200 | else |
| 2201 | PRINT_INFO("Device %s/%s/%s is a%s " |
| 2202 | "card%s%s%s\nwith link type %s.\n", |
| 2203 | CARD_RDEV_ID(card), |
| 2204 | CARD_WDEV_ID(card), |
| 2205 | CARD_DDEV_ID(card), |
| 2206 | qeth_get_cardname(card), |
| 2207 | (card->info.mcl_level[0]) ? " (level: " : "", |
| 2208 | (card->info.mcl_level[0]) ? card->info.mcl_level : "", |
| 2209 | (card->info.mcl_level[0]) ? ")" : "", |
| 2210 | qeth_get_cardname_short(card)); |
| 2211 | } |
| 2212 | |
| 2213 | void qeth_print_status_message(struct qeth_card *card) |
| 2214 | { |
| 2215 | switch (card->info.type) { |
| 2216 | case QETH_CARD_TYPE_OSAE: |
| 2217 | /* VM will use a non-zero first character |
| 2218 | * to indicate a HiperSockets like reporting |
| 2219 | * of the level OSA sets the first character to zero |
| 2220 | * */ |
| 2221 | if (!card->info.mcl_level[0]) { |
| 2222 | sprintf(card->info.mcl_level, "%02x%02x", |
| 2223 | card->info.mcl_level[2], |
| 2224 | card->info.mcl_level[3]); |
| 2225 | |
| 2226 | card->info.mcl_level[QETH_MCL_LENGTH] = 0; |
| 2227 | break; |
| 2228 | } |
| 2229 | /* fallthrough */ |
| 2230 | case QETH_CARD_TYPE_IQD: |
| 2231 | if (card->info.guestlan) { |
| 2232 | card->info.mcl_level[0] = (char) _ebcasc[(__u8) |
| 2233 | card->info.mcl_level[0]]; |
| 2234 | card->info.mcl_level[1] = (char) _ebcasc[(__u8) |
| 2235 | card->info.mcl_level[1]]; |
| 2236 | card->info.mcl_level[2] = (char) _ebcasc[(__u8) |
| 2237 | card->info.mcl_level[2]]; |
| 2238 | card->info.mcl_level[3] = (char) _ebcasc[(__u8) |
| 2239 | card->info.mcl_level[3]]; |
| 2240 | card->info.mcl_level[QETH_MCL_LENGTH] = 0; |
| 2241 | } |
| 2242 | break; |
| 2243 | default: |
| 2244 | memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1); |
| 2245 | } |
| 2246 | if (card->info.portname_required) |
| 2247 | qeth_print_status_with_portname(card); |
| 2248 | else |
| 2249 | qeth_print_status_no_portname(card); |
| 2250 | } |
| 2251 | EXPORT_SYMBOL_GPL(qeth_print_status_message); |
| 2252 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2253 | static void qeth_initialize_working_pool_list(struct qeth_card *card) |
| 2254 | { |
| 2255 | struct qeth_buffer_pool_entry *entry; |
| 2256 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2257 | QETH_DBF_TEXT(TRACE, 5, "inwrklst"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2258 | |
| 2259 | list_for_each_entry(entry, |
| 2260 | &card->qdio.init_pool.entry_list, init_list) { |
| 2261 | qeth_put_buffer_pool_entry(card, entry); |
| 2262 | } |
| 2263 | } |
| 2264 | |
| 2265 | static inline struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry( |
| 2266 | struct qeth_card *card) |
| 2267 | { |
| 2268 | struct list_head *plh; |
| 2269 | struct qeth_buffer_pool_entry *entry; |
| 2270 | int i, free; |
| 2271 | struct page *page; |
| 2272 | |
| 2273 | if (list_empty(&card->qdio.in_buf_pool.entry_list)) |
| 2274 | return NULL; |
| 2275 | |
| 2276 | list_for_each(plh, &card->qdio.in_buf_pool.entry_list) { |
| 2277 | entry = list_entry(plh, struct qeth_buffer_pool_entry, list); |
| 2278 | free = 1; |
| 2279 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { |
| 2280 | if (page_count(virt_to_page(entry->elements[i])) > 1) { |
| 2281 | free = 0; |
| 2282 | break; |
| 2283 | } |
| 2284 | } |
| 2285 | if (free) { |
| 2286 | list_del_init(&entry->list); |
| 2287 | return entry; |
| 2288 | } |
| 2289 | } |
| 2290 | |
| 2291 | /* no free buffer in pool so take first one and swap pages */ |
| 2292 | entry = list_entry(card->qdio.in_buf_pool.entry_list.next, |
| 2293 | struct qeth_buffer_pool_entry, list); |
| 2294 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { |
| 2295 | if (page_count(virt_to_page(entry->elements[i])) > 1) { |
Ursula Braun | 508b3c4 | 2008-04-01 10:26:54 +0200 | [diff] [blame] | 2296 | page = alloc_page(GFP_ATOMIC); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2297 | if (!page) { |
| 2298 | return NULL; |
| 2299 | } else { |
| 2300 | free_page((unsigned long)entry->elements[i]); |
| 2301 | entry->elements[i] = page_address(page); |
| 2302 | if (card->options.performance_stats) |
| 2303 | card->perf_stats.sg_alloc_page_rx++; |
| 2304 | } |
| 2305 | } |
| 2306 | } |
| 2307 | list_del_init(&entry->list); |
| 2308 | return entry; |
| 2309 | } |
| 2310 | |
| 2311 | static int qeth_init_input_buffer(struct qeth_card *card, |
| 2312 | struct qeth_qdio_buffer *buf) |
| 2313 | { |
| 2314 | struct qeth_buffer_pool_entry *pool_entry; |
| 2315 | int i; |
| 2316 | |
| 2317 | pool_entry = qeth_find_free_buffer_pool_entry(card); |
| 2318 | if (!pool_entry) |
| 2319 | return 1; |
| 2320 | |
| 2321 | /* |
| 2322 | * since the buffer is accessed only from the input_tasklet |
| 2323 | * there shouldn't be a need to synchronize; also, since we use |
| 2324 | * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off |
| 2325 | * buffers |
| 2326 | */ |
| 2327 | BUG_ON(!pool_entry); |
| 2328 | |
| 2329 | buf->pool_entry = pool_entry; |
| 2330 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { |
| 2331 | buf->buffer->element[i].length = PAGE_SIZE; |
| 2332 | buf->buffer->element[i].addr = pool_entry->elements[i]; |
| 2333 | if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1) |
| 2334 | buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY; |
| 2335 | else |
| 2336 | buf->buffer->element[i].flags = 0; |
| 2337 | } |
| 2338 | return 0; |
| 2339 | } |
| 2340 | |
| 2341 | int qeth_init_qdio_queues(struct qeth_card *card) |
| 2342 | { |
| 2343 | int i, j; |
| 2344 | int rc; |
| 2345 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2346 | QETH_DBF_TEXT(SETUP, 2, "initqdqs"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2347 | |
| 2348 | /* inbound queue */ |
| 2349 | memset(card->qdio.in_q->qdio_bufs, 0, |
| 2350 | QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer)); |
| 2351 | qeth_initialize_working_pool_list(card); |
| 2352 | /*give only as many buffers to hardware as we have buffer pool entries*/ |
| 2353 | for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i) |
| 2354 | qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]); |
| 2355 | card->qdio.in_q->next_buf_to_init = |
| 2356 | card->qdio.in_buf_pool.buf_count - 1; |
| 2357 | rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0, |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2358 | card->qdio.in_buf_pool.buf_count - 1); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2359 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2360 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2361 | return rc; |
| 2362 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2363 | /* outbound queue */ |
| 2364 | for (i = 0; i < card->qdio.no_out_queues; ++i) { |
| 2365 | memset(card->qdio.out_qs[i]->qdio_bufs, 0, |
| 2366 | QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer)); |
| 2367 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { |
| 2368 | qeth_clear_output_buffer(card->qdio.out_qs[i], |
| 2369 | &card->qdio.out_qs[i]->bufs[j]); |
| 2370 | } |
| 2371 | card->qdio.out_qs[i]->card = card; |
| 2372 | card->qdio.out_qs[i]->next_buf_to_fill = 0; |
| 2373 | card->qdio.out_qs[i]->do_pack = 0; |
| 2374 | atomic_set(&card->qdio.out_qs[i]->used_buffers, 0); |
| 2375 | atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0); |
| 2376 | atomic_set(&card->qdio.out_qs[i]->state, |
| 2377 | QETH_OUT_Q_UNLOCKED); |
| 2378 | } |
| 2379 | return 0; |
| 2380 | } |
| 2381 | EXPORT_SYMBOL_GPL(qeth_init_qdio_queues); |
| 2382 | |
| 2383 | static inline __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type) |
| 2384 | { |
| 2385 | switch (link_type) { |
| 2386 | case QETH_LINK_TYPE_HSTR: |
| 2387 | return 2; |
| 2388 | default: |
| 2389 | return 1; |
| 2390 | } |
| 2391 | } |
| 2392 | |
| 2393 | static void qeth_fill_ipacmd_header(struct qeth_card *card, |
| 2394 | struct qeth_ipa_cmd *cmd, __u8 command, |
| 2395 | enum qeth_prot_versions prot) |
| 2396 | { |
| 2397 | memset(cmd, 0, sizeof(struct qeth_ipa_cmd)); |
| 2398 | cmd->hdr.command = command; |
| 2399 | cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST; |
| 2400 | cmd->hdr.seqno = card->seqno.ipa; |
| 2401 | cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type); |
| 2402 | cmd->hdr.rel_adapter_no = (__u8) card->info.portno; |
| 2403 | if (card->options.layer2) |
| 2404 | cmd->hdr.prim_version_no = 2; |
| 2405 | else |
| 2406 | cmd->hdr.prim_version_no = 1; |
| 2407 | cmd->hdr.param_count = 1; |
| 2408 | cmd->hdr.prot_version = prot; |
| 2409 | cmd->hdr.ipa_supported = 0; |
| 2410 | cmd->hdr.ipa_enabled = 0; |
| 2411 | } |
| 2412 | |
| 2413 | struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card, |
| 2414 | enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot) |
| 2415 | { |
| 2416 | struct qeth_cmd_buffer *iob; |
| 2417 | struct qeth_ipa_cmd *cmd; |
| 2418 | |
| 2419 | iob = qeth_wait_for_buffer(&card->write); |
| 2420 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| 2421 | qeth_fill_ipacmd_header(card, cmd, ipacmd, prot); |
| 2422 | |
| 2423 | return iob; |
| 2424 | } |
| 2425 | EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer); |
| 2426 | |
| 2427 | void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, |
| 2428 | char prot_type) |
| 2429 | { |
| 2430 | memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); |
| 2431 | memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1); |
| 2432 | memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), |
| 2433 | &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); |
| 2434 | } |
| 2435 | EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd); |
| 2436 | |
| 2437 | int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, |
| 2438 | int (*reply_cb)(struct qeth_card *, struct qeth_reply*, |
| 2439 | unsigned long), |
| 2440 | void *reply_param) |
| 2441 | { |
| 2442 | int rc; |
| 2443 | char prot_type; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2444 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2445 | QETH_DBF_TEXT(TRACE, 4, "sendipa"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2446 | |
| 2447 | if (card->options.layer2) |
| 2448 | if (card->info.type == QETH_CARD_TYPE_OSN) |
| 2449 | prot_type = QETH_PROT_OSN2; |
| 2450 | else |
| 2451 | prot_type = QETH_PROT_LAYER2; |
| 2452 | else |
| 2453 | prot_type = QETH_PROT_TCPIP; |
| 2454 | qeth_prepare_ipa_cmd(card, iob, prot_type); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2455 | rc = qeth_send_control_data(card, IPA_CMD_LENGTH, |
| 2456 | iob, reply_cb, reply_param); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2457 | return rc; |
| 2458 | } |
| 2459 | EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd); |
| 2460 | |
| 2461 | static int qeth_send_startstoplan(struct qeth_card *card, |
| 2462 | enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot) |
| 2463 | { |
| 2464 | int rc; |
| 2465 | struct qeth_cmd_buffer *iob; |
| 2466 | |
| 2467 | iob = qeth_get_ipacmd_buffer(card, ipacmd, prot); |
| 2468 | rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); |
| 2469 | |
| 2470 | return rc; |
| 2471 | } |
| 2472 | |
| 2473 | int qeth_send_startlan(struct qeth_card *card) |
| 2474 | { |
| 2475 | int rc; |
| 2476 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2477 | QETH_DBF_TEXT(SETUP, 2, "strtlan"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2478 | |
| 2479 | rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, 0); |
| 2480 | return rc; |
| 2481 | } |
| 2482 | EXPORT_SYMBOL_GPL(qeth_send_startlan); |
| 2483 | |
| 2484 | int qeth_send_stoplan(struct qeth_card *card) |
| 2485 | { |
| 2486 | int rc = 0; |
| 2487 | |
| 2488 | /* |
| 2489 | * TODO: according to the IPA format document page 14, |
| 2490 | * TCP/IP (we!) never issue a STOPLAN |
| 2491 | * is this right ?!? |
| 2492 | */ |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2493 | QETH_DBF_TEXT(SETUP, 2, "stoplan"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2494 | |
| 2495 | rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, 0); |
| 2496 | return rc; |
| 2497 | } |
| 2498 | EXPORT_SYMBOL_GPL(qeth_send_stoplan); |
| 2499 | |
| 2500 | int qeth_default_setadapterparms_cb(struct qeth_card *card, |
| 2501 | struct qeth_reply *reply, unsigned long data) |
| 2502 | { |
| 2503 | struct qeth_ipa_cmd *cmd; |
| 2504 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2505 | QETH_DBF_TEXT(TRACE, 4, "defadpcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2506 | |
| 2507 | cmd = (struct qeth_ipa_cmd *) data; |
| 2508 | if (cmd->hdr.return_code == 0) |
| 2509 | cmd->hdr.return_code = |
| 2510 | cmd->data.setadapterparms.hdr.return_code; |
| 2511 | return 0; |
| 2512 | } |
| 2513 | EXPORT_SYMBOL_GPL(qeth_default_setadapterparms_cb); |
| 2514 | |
| 2515 | static int qeth_query_setadapterparms_cb(struct qeth_card *card, |
| 2516 | struct qeth_reply *reply, unsigned long data) |
| 2517 | { |
| 2518 | struct qeth_ipa_cmd *cmd; |
| 2519 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2520 | QETH_DBF_TEXT(TRACE, 3, "quyadpcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2521 | |
| 2522 | cmd = (struct qeth_ipa_cmd *) data; |
| 2523 | if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) |
| 2524 | card->info.link_type = |
| 2525 | cmd->data.setadapterparms.data.query_cmds_supp.lan_type; |
| 2526 | card->options.adp.supported_funcs = |
| 2527 | cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds; |
| 2528 | return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd); |
| 2529 | } |
| 2530 | |
| 2531 | struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card, |
| 2532 | __u32 command, __u32 cmdlen) |
| 2533 | { |
| 2534 | struct qeth_cmd_buffer *iob; |
| 2535 | struct qeth_ipa_cmd *cmd; |
| 2536 | |
| 2537 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS, |
| 2538 | QETH_PROT_IPV4); |
| 2539 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| 2540 | cmd->data.setadapterparms.hdr.cmdlength = cmdlen; |
| 2541 | cmd->data.setadapterparms.hdr.command_code = command; |
| 2542 | cmd->data.setadapterparms.hdr.used_total = 1; |
| 2543 | cmd->data.setadapterparms.hdr.seq_no = 1; |
| 2544 | |
| 2545 | return iob; |
| 2546 | } |
| 2547 | EXPORT_SYMBOL_GPL(qeth_get_adapter_cmd); |
| 2548 | |
| 2549 | int qeth_query_setadapterparms(struct qeth_card *card) |
| 2550 | { |
| 2551 | int rc; |
| 2552 | struct qeth_cmd_buffer *iob; |
| 2553 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2554 | QETH_DBF_TEXT(TRACE, 3, "queryadp"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2555 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED, |
| 2556 | sizeof(struct qeth_ipacmd_setadpparms)); |
| 2557 | rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL); |
| 2558 | return rc; |
| 2559 | } |
| 2560 | EXPORT_SYMBOL_GPL(qeth_query_setadapterparms); |
| 2561 | |
| 2562 | int qeth_check_qdio_errors(struct qdio_buffer *buf, unsigned int qdio_error, |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2563 | const char *dbftext) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2564 | { |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2565 | if (qdio_error) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2566 | QETH_DBF_TEXT(TRACE, 2, dbftext); |
| 2567 | QETH_DBF_TEXT(QERR, 2, dbftext); |
| 2568 | QETH_DBF_TEXT_(QERR, 2, " F15=%02X", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2569 | buf->element[15].flags & 0xff); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2570 | QETH_DBF_TEXT_(QERR, 2, " F14=%02X", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2571 | buf->element[14].flags & 0xff); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2572 | QETH_DBF_TEXT_(QERR, 2, " qerr=%X", qdio_error); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2573 | return 1; |
| 2574 | } |
| 2575 | return 0; |
| 2576 | } |
| 2577 | EXPORT_SYMBOL_GPL(qeth_check_qdio_errors); |
| 2578 | |
| 2579 | void qeth_queue_input_buffer(struct qeth_card *card, int index) |
| 2580 | { |
| 2581 | struct qeth_qdio_q *queue = card->qdio.in_q; |
| 2582 | int count; |
| 2583 | int i; |
| 2584 | int rc; |
| 2585 | int newcount = 0; |
| 2586 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2587 | count = (index < queue->next_buf_to_init)? |
| 2588 | card->qdio.in_buf_pool.buf_count - |
| 2589 | (queue->next_buf_to_init - index) : |
| 2590 | card->qdio.in_buf_pool.buf_count - |
| 2591 | (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index); |
| 2592 | /* only requeue at a certain threshold to avoid SIGAs */ |
| 2593 | if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) { |
| 2594 | for (i = queue->next_buf_to_init; |
| 2595 | i < queue->next_buf_to_init + count; ++i) { |
| 2596 | if (qeth_init_input_buffer(card, |
| 2597 | &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) { |
| 2598 | break; |
| 2599 | } else { |
| 2600 | newcount++; |
| 2601 | } |
| 2602 | } |
| 2603 | |
| 2604 | if (newcount < count) { |
| 2605 | /* we are in memory shortage so we switch back to |
| 2606 | traditional skb allocation and drop packages */ |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2607 | atomic_set(&card->force_alloc_skb, 3); |
| 2608 | count = newcount; |
| 2609 | } else { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2610 | atomic_add_unless(&card->force_alloc_skb, -1, 0); |
| 2611 | } |
| 2612 | |
| 2613 | /* |
| 2614 | * according to old code it should be avoided to requeue all |
| 2615 | * 128 buffers in order to benefit from PCI avoidance. |
| 2616 | * this function keeps at least one buffer (the buffer at |
| 2617 | * 'index') un-requeued -> this buffer is the first buffer that |
| 2618 | * will be requeued the next time |
| 2619 | */ |
| 2620 | if (card->options.performance_stats) { |
| 2621 | card->perf_stats.inbound_do_qdio_cnt++; |
| 2622 | card->perf_stats.inbound_do_qdio_start_time = |
| 2623 | qeth_get_micros(); |
| 2624 | } |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2625 | rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, |
| 2626 | queue->next_buf_to_init, count); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2627 | if (card->options.performance_stats) |
| 2628 | card->perf_stats.inbound_do_qdio_time += |
| 2629 | qeth_get_micros() - |
| 2630 | card->perf_stats.inbound_do_qdio_start_time; |
| 2631 | if (rc) { |
| 2632 | PRINT_WARN("qeth_queue_input_buffer's do_QDIO " |
| 2633 | "return %i (device %s).\n", |
| 2634 | rc, CARD_DDEV_ID(card)); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2635 | QETH_DBF_TEXT(TRACE, 2, "qinberr"); |
| 2636 | QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_BUS_ID(card)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2637 | } |
| 2638 | queue->next_buf_to_init = (queue->next_buf_to_init + count) % |
| 2639 | QDIO_MAX_BUFFERS_PER_Q; |
| 2640 | } |
| 2641 | } |
| 2642 | EXPORT_SYMBOL_GPL(qeth_queue_input_buffer); |
| 2643 | |
| 2644 | static int qeth_handle_send_error(struct qeth_card *card, |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2645 | struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2646 | { |
| 2647 | int sbalf15 = buffer->buffer->element[15].flags & 0xff; |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2648 | int cc = qdio_err & 3; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2649 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2650 | QETH_DBF_TEXT(TRACE, 6, "hdsnderr"); |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2651 | qeth_check_qdio_errors(buffer->buffer, qdio_err, "qouterr"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2652 | switch (cc) { |
| 2653 | case 0: |
| 2654 | if (qdio_err) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2655 | QETH_DBF_TEXT(TRACE, 1, "lnkfail"); |
| 2656 | QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); |
| 2657 | QETH_DBF_TEXT_(TRACE, 1, "%04x %02x", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2658 | (u16)qdio_err, (u8)sbalf15); |
| 2659 | return QETH_SEND_ERROR_LINK_FAILURE; |
| 2660 | } |
| 2661 | return QETH_SEND_ERROR_NONE; |
| 2662 | case 2: |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2663 | if (qdio_err & QDIO_ERROR_SIGA_BUSY) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2664 | QETH_DBF_TEXT(TRACE, 1, "SIGAcc2B"); |
| 2665 | QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2666 | return QETH_SEND_ERROR_KICK_IT; |
| 2667 | } |
| 2668 | if ((sbalf15 >= 15) && (sbalf15 <= 31)) |
| 2669 | return QETH_SEND_ERROR_RETRY; |
| 2670 | return QETH_SEND_ERROR_LINK_FAILURE; |
| 2671 | /* look at qdio_error and sbalf 15 */ |
| 2672 | case 1: |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2673 | QETH_DBF_TEXT(TRACE, 1, "SIGAcc1"); |
| 2674 | QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2675 | return QETH_SEND_ERROR_LINK_FAILURE; |
| 2676 | case 3: |
| 2677 | default: |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2678 | QETH_DBF_TEXT(TRACE, 1, "SIGAcc3"); |
| 2679 | QETH_DBF_TEXT_(TRACE, 1, "%s", CARD_BUS_ID(card)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2680 | return QETH_SEND_ERROR_KICK_IT; |
| 2681 | } |
| 2682 | } |
| 2683 | |
| 2684 | /* |
| 2685 | * Switched to packing state if the number of used buffers on a queue |
| 2686 | * reaches a certain limit. |
| 2687 | */ |
| 2688 | static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue) |
| 2689 | { |
| 2690 | if (!queue->do_pack) { |
| 2691 | if (atomic_read(&queue->used_buffers) |
| 2692 | >= QETH_HIGH_WATERMARK_PACK){ |
| 2693 | /* switch non-PACKING -> PACKING */ |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2694 | QETH_DBF_TEXT(TRACE, 6, "np->pack"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2695 | if (queue->card->options.performance_stats) |
| 2696 | queue->card->perf_stats.sc_dp_p++; |
| 2697 | queue->do_pack = 1; |
| 2698 | } |
| 2699 | } |
| 2700 | } |
| 2701 | |
| 2702 | /* |
| 2703 | * Switches from packing to non-packing mode. If there is a packing |
| 2704 | * buffer on the queue this buffer will be prepared to be flushed. |
| 2705 | * In that case 1 is returned to inform the caller. If no buffer |
| 2706 | * has to be flushed, zero is returned. |
| 2707 | */ |
| 2708 | static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue) |
| 2709 | { |
| 2710 | struct qeth_qdio_out_buffer *buffer; |
| 2711 | int flush_count = 0; |
| 2712 | |
| 2713 | if (queue->do_pack) { |
| 2714 | if (atomic_read(&queue->used_buffers) |
| 2715 | <= QETH_LOW_WATERMARK_PACK) { |
| 2716 | /* switch PACKING -> non-PACKING */ |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2717 | QETH_DBF_TEXT(TRACE, 6, "pack->np"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2718 | if (queue->card->options.performance_stats) |
| 2719 | queue->card->perf_stats.sc_p_dp++; |
| 2720 | queue->do_pack = 0; |
| 2721 | /* flush packing buffers */ |
| 2722 | buffer = &queue->bufs[queue->next_buf_to_fill]; |
| 2723 | if ((atomic_read(&buffer->state) == |
| 2724 | QETH_QDIO_BUF_EMPTY) && |
| 2725 | (buffer->next_element_to_fill > 0)) { |
| 2726 | atomic_set(&buffer->state, |
| 2727 | QETH_QDIO_BUF_PRIMED); |
| 2728 | flush_count++; |
| 2729 | queue->next_buf_to_fill = |
| 2730 | (queue->next_buf_to_fill + 1) % |
| 2731 | QDIO_MAX_BUFFERS_PER_Q; |
| 2732 | } |
| 2733 | } |
| 2734 | } |
| 2735 | return flush_count; |
| 2736 | } |
| 2737 | |
| 2738 | /* |
| 2739 | * Called to flush a packing buffer if no more pci flags are on the queue. |
| 2740 | * Checks if there is a packing buffer and prepares it to be flushed. |
| 2741 | * In that case returns 1, otherwise zero. |
| 2742 | */ |
| 2743 | static int qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue) |
| 2744 | { |
| 2745 | struct qeth_qdio_out_buffer *buffer; |
| 2746 | |
| 2747 | buffer = &queue->bufs[queue->next_buf_to_fill]; |
| 2748 | if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) && |
| 2749 | (buffer->next_element_to_fill > 0)) { |
| 2750 | /* it's a packing buffer */ |
| 2751 | atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); |
| 2752 | queue->next_buf_to_fill = |
| 2753 | (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q; |
| 2754 | return 1; |
| 2755 | } |
| 2756 | return 0; |
| 2757 | } |
| 2758 | |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2759 | static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index, |
| 2760 | int count) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2761 | { |
| 2762 | struct qeth_qdio_out_buffer *buf; |
| 2763 | int rc; |
| 2764 | int i; |
| 2765 | unsigned int qdio_flags; |
| 2766 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2767 | for (i = index; i < index + count; ++i) { |
| 2768 | buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]; |
| 2769 | buf->buffer->element[buf->next_element_to_fill - 1].flags |= |
| 2770 | SBAL_FLAGS_LAST_ENTRY; |
| 2771 | |
| 2772 | if (queue->card->info.type == QETH_CARD_TYPE_IQD) |
| 2773 | continue; |
| 2774 | |
| 2775 | if (!queue->do_pack) { |
| 2776 | if ((atomic_read(&queue->used_buffers) >= |
| 2777 | (QETH_HIGH_WATERMARK_PACK - |
| 2778 | QETH_WATERMARK_PACK_FUZZ)) && |
| 2779 | !atomic_read(&queue->set_pci_flags_count)) { |
| 2780 | /* it's likely that we'll go to packing |
| 2781 | * mode soon */ |
| 2782 | atomic_inc(&queue->set_pci_flags_count); |
| 2783 | buf->buffer->element[0].flags |= 0x40; |
| 2784 | } |
| 2785 | } else { |
| 2786 | if (!atomic_read(&queue->set_pci_flags_count)) { |
| 2787 | /* |
| 2788 | * there's no outstanding PCI any more, so we |
| 2789 | * have to request a PCI to be sure the the PCI |
| 2790 | * will wake at some time in the future then we |
| 2791 | * can flush packed buffers that might still be |
| 2792 | * hanging around, which can happen if no |
| 2793 | * further send was requested by the stack |
| 2794 | */ |
| 2795 | atomic_inc(&queue->set_pci_flags_count); |
| 2796 | buf->buffer->element[0].flags |= 0x40; |
| 2797 | } |
| 2798 | } |
| 2799 | } |
| 2800 | |
| 2801 | queue->card->dev->trans_start = jiffies; |
| 2802 | if (queue->card->options.performance_stats) { |
| 2803 | queue->card->perf_stats.outbound_do_qdio_cnt++; |
| 2804 | queue->card->perf_stats.outbound_do_qdio_start_time = |
| 2805 | qeth_get_micros(); |
| 2806 | } |
| 2807 | qdio_flags = QDIO_FLAG_SYNC_OUTPUT; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2808 | if (atomic_read(&queue->set_pci_flags_count)) |
| 2809 | qdio_flags |= QDIO_FLAG_PCI_OUT; |
| 2810 | rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags, |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2811 | queue->queue_no, index, count); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2812 | if (queue->card->options.performance_stats) |
| 2813 | queue->card->perf_stats.outbound_do_qdio_time += |
| 2814 | qeth_get_micros() - |
| 2815 | queue->card->perf_stats.outbound_do_qdio_start_time; |
| 2816 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2817 | QETH_DBF_TEXT(TRACE, 2, "flushbuf"); |
| 2818 | QETH_DBF_TEXT_(TRACE, 2, " err%d", rc); |
| 2819 | QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_DDEV_ID(queue->card)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2820 | queue->card->stats.tx_errors += count; |
| 2821 | /* this must not happen under normal circumstances. if it |
| 2822 | * happens something is really wrong -> recover */ |
| 2823 | qeth_schedule_recovery(queue->card); |
| 2824 | return; |
| 2825 | } |
| 2826 | atomic_add(count, &queue->used_buffers); |
| 2827 | if (queue->card->options.performance_stats) |
| 2828 | queue->card->perf_stats.bufs_sent += count; |
| 2829 | } |
| 2830 | |
| 2831 | static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue) |
| 2832 | { |
| 2833 | int index; |
| 2834 | int flush_cnt = 0; |
| 2835 | int q_was_packing = 0; |
| 2836 | |
| 2837 | /* |
| 2838 | * check if weed have to switch to non-packing mode or if |
| 2839 | * we have to get a pci flag out on the queue |
| 2840 | */ |
| 2841 | if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) || |
| 2842 | !atomic_read(&queue->set_pci_flags_count)) { |
| 2843 | if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) == |
| 2844 | QETH_OUT_Q_UNLOCKED) { |
| 2845 | /* |
| 2846 | * If we get in here, there was no action in |
| 2847 | * do_send_packet. So, we check if there is a |
| 2848 | * packing buffer to be flushed here. |
| 2849 | */ |
| 2850 | netif_stop_queue(queue->card->dev); |
| 2851 | index = queue->next_buf_to_fill; |
| 2852 | q_was_packing = queue->do_pack; |
| 2853 | /* queue->do_pack may change */ |
| 2854 | barrier(); |
| 2855 | flush_cnt += qeth_switch_to_nonpacking_if_needed(queue); |
| 2856 | if (!flush_cnt && |
| 2857 | !atomic_read(&queue->set_pci_flags_count)) |
| 2858 | flush_cnt += |
| 2859 | qeth_flush_buffers_on_no_pci(queue); |
| 2860 | if (queue->card->options.performance_stats && |
| 2861 | q_was_packing) |
| 2862 | queue->card->perf_stats.bufs_sent_pack += |
| 2863 | flush_cnt; |
| 2864 | if (flush_cnt) |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2865 | qeth_flush_buffers(queue, index, flush_cnt); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2866 | atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); |
| 2867 | } |
| 2868 | } |
| 2869 | } |
| 2870 | |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2871 | void qeth_qdio_output_handler(struct ccw_device *ccwdev, |
| 2872 | unsigned int qdio_error, int __queue, int first_element, |
| 2873 | int count, unsigned long card_ptr) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2874 | { |
| 2875 | struct qeth_card *card = (struct qeth_card *) card_ptr; |
| 2876 | struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue]; |
| 2877 | struct qeth_qdio_out_buffer *buffer; |
| 2878 | int i; |
| 2879 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2880 | QETH_DBF_TEXT(TRACE, 6, "qdouhdl"); |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2881 | if (qdio_error & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) { |
| 2882 | QETH_DBF_TEXT(TRACE, 2, "achkcond"); |
| 2883 | QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_BUS_ID(card)); |
| 2884 | netif_stop_queue(card->dev); |
| 2885 | qeth_schedule_recovery(card); |
| 2886 | return; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2887 | } |
| 2888 | if (card->options.performance_stats) { |
| 2889 | card->perf_stats.outbound_handler_cnt++; |
| 2890 | card->perf_stats.outbound_handler_start_time = |
| 2891 | qeth_get_micros(); |
| 2892 | } |
| 2893 | for (i = first_element; i < (first_element + count); ++i) { |
| 2894 | buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]; |
| 2895 | /*we only handle the KICK_IT error by doing a recovery */ |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2896 | if (qeth_handle_send_error(card, buffer, qdio_error) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2897 | == QETH_SEND_ERROR_KICK_IT){ |
| 2898 | netif_stop_queue(card->dev); |
| 2899 | qeth_schedule_recovery(card); |
| 2900 | return; |
| 2901 | } |
| 2902 | qeth_clear_output_buffer(queue, buffer); |
| 2903 | } |
| 2904 | atomic_sub(count, &queue->used_buffers); |
| 2905 | /* check if we need to do something on this outbound queue */ |
| 2906 | if (card->info.type != QETH_CARD_TYPE_IQD) |
| 2907 | qeth_check_outbound_queue(queue); |
| 2908 | |
| 2909 | netif_wake_queue(queue->card->dev); |
| 2910 | if (card->options.performance_stats) |
| 2911 | card->perf_stats.outbound_handler_time += qeth_get_micros() - |
| 2912 | card->perf_stats.outbound_handler_start_time; |
| 2913 | } |
| 2914 | EXPORT_SYMBOL_GPL(qeth_qdio_output_handler); |
| 2915 | |
| 2916 | int qeth_get_cast_type(struct qeth_card *card, struct sk_buff *skb) |
| 2917 | { |
| 2918 | int cast_type = RTN_UNSPEC; |
| 2919 | |
| 2920 | if (card->info.type == QETH_CARD_TYPE_OSN) |
| 2921 | return cast_type; |
| 2922 | |
| 2923 | if (skb->dst && skb->dst->neighbour) { |
| 2924 | cast_type = skb->dst->neighbour->type; |
| 2925 | if ((cast_type == RTN_BROADCAST) || |
| 2926 | (cast_type == RTN_MULTICAST) || |
| 2927 | (cast_type == RTN_ANYCAST)) |
| 2928 | return cast_type; |
| 2929 | else |
| 2930 | return RTN_UNSPEC; |
| 2931 | } |
| 2932 | /* try something else */ |
| 2933 | if (skb->protocol == ETH_P_IPV6) |
| 2934 | return (skb_network_header(skb)[24] == 0xff) ? |
| 2935 | RTN_MULTICAST : 0; |
| 2936 | else if (skb->protocol == ETH_P_IP) |
| 2937 | return ((skb_network_header(skb)[16] & 0xf0) == 0xe0) ? |
| 2938 | RTN_MULTICAST : 0; |
| 2939 | /* ... */ |
| 2940 | if (!memcmp(skb->data, skb->dev->broadcast, 6)) |
| 2941 | return RTN_BROADCAST; |
| 2942 | else { |
| 2943 | u16 hdr_mac; |
| 2944 | |
| 2945 | hdr_mac = *((u16 *)skb->data); |
| 2946 | /* tr multicast? */ |
| 2947 | switch (card->info.link_type) { |
| 2948 | case QETH_LINK_TYPE_HSTR: |
| 2949 | case QETH_LINK_TYPE_LANE_TR: |
| 2950 | if ((hdr_mac == QETH_TR_MAC_NC) || |
| 2951 | (hdr_mac == QETH_TR_MAC_C)) |
| 2952 | return RTN_MULTICAST; |
| 2953 | break; |
| 2954 | /* eth or so multicast? */ |
| 2955 | default: |
| 2956 | if ((hdr_mac == QETH_ETH_MAC_V4) || |
| 2957 | (hdr_mac == QETH_ETH_MAC_V6)) |
| 2958 | return RTN_MULTICAST; |
| 2959 | } |
| 2960 | } |
| 2961 | return cast_type; |
| 2962 | } |
| 2963 | EXPORT_SYMBOL_GPL(qeth_get_cast_type); |
| 2964 | |
| 2965 | int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb, |
| 2966 | int ipv, int cast_type) |
| 2967 | { |
| 2968 | if (!ipv && (card->info.type == QETH_CARD_TYPE_OSAE)) |
| 2969 | return card->qdio.default_out_queue; |
| 2970 | switch (card->qdio.no_out_queues) { |
| 2971 | case 4: |
| 2972 | if (cast_type && card->info.is_multicast_different) |
| 2973 | return card->info.is_multicast_different & |
| 2974 | (card->qdio.no_out_queues - 1); |
| 2975 | if (card->qdio.do_prio_queueing && (ipv == 4)) { |
| 2976 | const u8 tos = ip_hdr(skb)->tos; |
| 2977 | |
| 2978 | if (card->qdio.do_prio_queueing == |
| 2979 | QETH_PRIO_Q_ING_TOS) { |
| 2980 | if (tos & IP_TOS_NOTIMPORTANT) |
| 2981 | return 3; |
| 2982 | if (tos & IP_TOS_HIGHRELIABILITY) |
| 2983 | return 2; |
| 2984 | if (tos & IP_TOS_HIGHTHROUGHPUT) |
| 2985 | return 1; |
| 2986 | if (tos & IP_TOS_LOWDELAY) |
| 2987 | return 0; |
| 2988 | } |
| 2989 | if (card->qdio.do_prio_queueing == |
| 2990 | QETH_PRIO_Q_ING_PREC) |
| 2991 | return 3 - (tos >> 6); |
| 2992 | } else if (card->qdio.do_prio_queueing && (ipv == 6)) { |
| 2993 | /* TODO: IPv6!!! */ |
| 2994 | } |
| 2995 | return card->qdio.default_out_queue; |
| 2996 | case 1: /* fallthrough for single-out-queue 1920-device */ |
| 2997 | default: |
| 2998 | return card->qdio.default_out_queue; |
| 2999 | } |
| 3000 | } |
| 3001 | EXPORT_SYMBOL_GPL(qeth_get_priority_queue); |
| 3002 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3003 | int qeth_get_elements_no(struct qeth_card *card, void *hdr, |
| 3004 | struct sk_buff *skb, int elems) |
| 3005 | { |
| 3006 | int elements_needed = 0; |
| 3007 | |
| 3008 | if (skb_shinfo(skb)->nr_frags > 0) |
| 3009 | elements_needed = (skb_shinfo(skb)->nr_frags + 1); |
| 3010 | if (elements_needed == 0) |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame^] | 3011 | elements_needed = 1 + (((((unsigned long) skb->data) % |
| 3012 | PAGE_SIZE) + skb->len) >> PAGE_SHIFT); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3013 | if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)) { |
Frank Blaschka | 14cc21b | 2008-06-06 12:37:46 +0200 | [diff] [blame] | 3014 | QETH_DBF_MESSAGE(2, "Invalid size of IP packet " |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3015 | "(Number=%d / Length=%d). Discarded.\n", |
| 3016 | (elements_needed+elems), skb->len); |
| 3017 | return 0; |
| 3018 | } |
| 3019 | return elements_needed; |
| 3020 | } |
| 3021 | EXPORT_SYMBOL_GPL(qeth_get_elements_no); |
| 3022 | |
Frank Blaschka | f90b744 | 2008-04-24 10:15:24 +0200 | [diff] [blame] | 3023 | static inline void __qeth_fill_buffer(struct sk_buff *skb, |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame^] | 3024 | struct qdio_buffer *buffer, int is_tso, int *next_element_to_fill, |
| 3025 | int offset) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3026 | { |
| 3027 | int length = skb->len; |
| 3028 | int length_here; |
| 3029 | int element; |
| 3030 | char *data; |
| 3031 | int first_lap ; |
| 3032 | |
| 3033 | element = *next_element_to_fill; |
| 3034 | data = skb->data; |
| 3035 | first_lap = (is_tso == 0 ? 1 : 0); |
| 3036 | |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame^] | 3037 | if (offset >= 0) { |
| 3038 | data = skb->data + offset; |
| 3039 | first_lap = 0; |
| 3040 | } |
| 3041 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3042 | while (length > 0) { |
| 3043 | /* length_here is the remaining amount of data in this page */ |
| 3044 | length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE); |
| 3045 | if (length < length_here) |
| 3046 | length_here = length; |
| 3047 | |
| 3048 | buffer->element[element].addr = data; |
| 3049 | buffer->element[element].length = length_here; |
| 3050 | length -= length_here; |
| 3051 | if (!length) { |
| 3052 | if (first_lap) |
| 3053 | buffer->element[element].flags = 0; |
| 3054 | else |
| 3055 | buffer->element[element].flags = |
| 3056 | SBAL_FLAGS_LAST_FRAG; |
| 3057 | } else { |
| 3058 | if (first_lap) |
| 3059 | buffer->element[element].flags = |
| 3060 | SBAL_FLAGS_FIRST_FRAG; |
| 3061 | else |
| 3062 | buffer->element[element].flags = |
| 3063 | SBAL_FLAGS_MIDDLE_FRAG; |
| 3064 | } |
| 3065 | data += length_here; |
| 3066 | element++; |
| 3067 | first_lap = 0; |
| 3068 | } |
| 3069 | *next_element_to_fill = element; |
| 3070 | } |
| 3071 | |
Frank Blaschka | f90b744 | 2008-04-24 10:15:24 +0200 | [diff] [blame] | 3072 | static inline int qeth_fill_buffer(struct qeth_qdio_out_q *queue, |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame^] | 3073 | struct qeth_qdio_out_buffer *buf, struct sk_buff *skb, |
| 3074 | struct qeth_hdr *hdr, int offset, int hd_len) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3075 | { |
| 3076 | struct qdio_buffer *buffer; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3077 | int flush_cnt = 0, hdr_len, large_send = 0; |
| 3078 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3079 | buffer = buf->buffer; |
| 3080 | atomic_inc(&skb->users); |
| 3081 | skb_queue_tail(&buf->skb_list, skb); |
| 3082 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3083 | /*check first on TSO ....*/ |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame^] | 3084 | if (hdr->hdr.l3.id == QETH_HEADER_TYPE_TSO) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3085 | int element = buf->next_element_to_fill; |
| 3086 | |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame^] | 3087 | hdr_len = sizeof(struct qeth_hdr_tso) + |
| 3088 | ((struct qeth_hdr_tso *)hdr)->ext.dg_hdr_len; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3089 | /*fill first buffer entry only with header information */ |
| 3090 | buffer->element[element].addr = skb->data; |
| 3091 | buffer->element[element].length = hdr_len; |
| 3092 | buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG; |
| 3093 | buf->next_element_to_fill++; |
| 3094 | skb->data += hdr_len; |
| 3095 | skb->len -= hdr_len; |
| 3096 | large_send = 1; |
| 3097 | } |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame^] | 3098 | |
| 3099 | if (offset >= 0) { |
| 3100 | int element = buf->next_element_to_fill; |
| 3101 | buffer->element[element].addr = hdr; |
| 3102 | buffer->element[element].length = sizeof(struct qeth_hdr) + |
| 3103 | hd_len; |
| 3104 | buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG; |
| 3105 | buf->is_header[element] = 1; |
| 3106 | buf->next_element_to_fill++; |
| 3107 | } |
| 3108 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3109 | if (skb_shinfo(skb)->nr_frags == 0) |
| 3110 | __qeth_fill_buffer(skb, buffer, large_send, |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame^] | 3111 | (int *)&buf->next_element_to_fill, offset); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3112 | else |
| 3113 | __qeth_fill_buffer_frag(skb, buffer, large_send, |
| 3114 | (int *)&buf->next_element_to_fill); |
| 3115 | |
| 3116 | if (!queue->do_pack) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3117 | QETH_DBF_TEXT(TRACE, 6, "fillbfnp"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3118 | /* set state to PRIMED -> will be flushed */ |
| 3119 | atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); |
| 3120 | flush_cnt = 1; |
| 3121 | } else { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3122 | QETH_DBF_TEXT(TRACE, 6, "fillbfpa"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3123 | if (queue->card->options.performance_stats) |
| 3124 | queue->card->perf_stats.skbs_sent_pack++; |
| 3125 | if (buf->next_element_to_fill >= |
| 3126 | QETH_MAX_BUFFER_ELEMENTS(queue->card)) { |
| 3127 | /* |
| 3128 | * packed buffer if full -> set state PRIMED |
| 3129 | * -> will be flushed |
| 3130 | */ |
| 3131 | atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); |
| 3132 | flush_cnt = 1; |
| 3133 | } |
| 3134 | } |
| 3135 | return flush_cnt; |
| 3136 | } |
| 3137 | |
| 3138 | int qeth_do_send_packet_fast(struct qeth_card *card, |
| 3139 | struct qeth_qdio_out_q *queue, struct sk_buff *skb, |
| 3140 | struct qeth_hdr *hdr, int elements_needed, |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame^] | 3141 | struct qeth_eddp_context *ctx, int offset, int hd_len) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3142 | { |
| 3143 | struct qeth_qdio_out_buffer *buffer; |
| 3144 | int buffers_needed = 0; |
| 3145 | int flush_cnt = 0; |
| 3146 | int index; |
| 3147 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3148 | /* spin until we get the queue ... */ |
| 3149 | while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED, |
| 3150 | QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED); |
| 3151 | /* ... now we've got the queue */ |
| 3152 | index = queue->next_buf_to_fill; |
| 3153 | buffer = &queue->bufs[queue->next_buf_to_fill]; |
| 3154 | /* |
| 3155 | * check if buffer is empty to make sure that we do not 'overtake' |
| 3156 | * ourselves and try to fill a buffer that is already primed |
| 3157 | */ |
| 3158 | if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) |
| 3159 | goto out; |
| 3160 | if (ctx == NULL) |
| 3161 | queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) % |
| 3162 | QDIO_MAX_BUFFERS_PER_Q; |
| 3163 | else { |
| 3164 | buffers_needed = qeth_eddp_check_buffers_for_context(queue, |
| 3165 | ctx); |
| 3166 | if (buffers_needed < 0) |
| 3167 | goto out; |
| 3168 | queue->next_buf_to_fill = |
| 3169 | (queue->next_buf_to_fill + buffers_needed) % |
| 3170 | QDIO_MAX_BUFFERS_PER_Q; |
| 3171 | } |
| 3172 | atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); |
| 3173 | if (ctx == NULL) { |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame^] | 3174 | qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len); |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 3175 | qeth_flush_buffers(queue, index, 1); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3176 | } else { |
| 3177 | flush_cnt = qeth_eddp_fill_buffer(queue, ctx, index); |
| 3178 | WARN_ON(buffers_needed != flush_cnt); |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 3179 | qeth_flush_buffers(queue, index, flush_cnt); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3180 | } |
| 3181 | return 0; |
| 3182 | out: |
| 3183 | atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); |
| 3184 | return -EBUSY; |
| 3185 | } |
| 3186 | EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast); |
| 3187 | |
| 3188 | int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, |
| 3189 | struct sk_buff *skb, struct qeth_hdr *hdr, |
| 3190 | int elements_needed, struct qeth_eddp_context *ctx) |
| 3191 | { |
| 3192 | struct qeth_qdio_out_buffer *buffer; |
| 3193 | int start_index; |
| 3194 | int flush_count = 0; |
| 3195 | int do_pack = 0; |
| 3196 | int tmp; |
| 3197 | int rc = 0; |
| 3198 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3199 | /* spin until we get the queue ... */ |
| 3200 | while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED, |
| 3201 | QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED); |
| 3202 | start_index = queue->next_buf_to_fill; |
| 3203 | buffer = &queue->bufs[queue->next_buf_to_fill]; |
| 3204 | /* |
| 3205 | * check if buffer is empty to make sure that we do not 'overtake' |
| 3206 | * ourselves and try to fill a buffer that is already primed |
| 3207 | */ |
| 3208 | if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) { |
| 3209 | atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); |
| 3210 | return -EBUSY; |
| 3211 | } |
| 3212 | /* check if we need to switch packing state of this queue */ |
| 3213 | qeth_switch_to_packing_if_needed(queue); |
| 3214 | if (queue->do_pack) { |
| 3215 | do_pack = 1; |
| 3216 | if (ctx == NULL) { |
| 3217 | /* does packet fit in current buffer? */ |
| 3218 | if ((QETH_MAX_BUFFER_ELEMENTS(card) - |
| 3219 | buffer->next_element_to_fill) < elements_needed) { |
| 3220 | /* ... no -> set state PRIMED */ |
| 3221 | atomic_set(&buffer->state, |
| 3222 | QETH_QDIO_BUF_PRIMED); |
| 3223 | flush_count++; |
| 3224 | queue->next_buf_to_fill = |
| 3225 | (queue->next_buf_to_fill + 1) % |
| 3226 | QDIO_MAX_BUFFERS_PER_Q; |
| 3227 | buffer = &queue->bufs[queue->next_buf_to_fill]; |
| 3228 | /* we did a step forward, so check buffer state |
| 3229 | * again */ |
| 3230 | if (atomic_read(&buffer->state) != |
| 3231 | QETH_QDIO_BUF_EMPTY){ |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 3232 | qeth_flush_buffers(queue, start_index, |
| 3233 | flush_count); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3234 | atomic_set(&queue->state, |
| 3235 | QETH_OUT_Q_UNLOCKED); |
| 3236 | return -EBUSY; |
| 3237 | } |
| 3238 | } |
| 3239 | } else { |
| 3240 | /* check if we have enough elements (including following |
| 3241 | * free buffers) to handle eddp context */ |
| 3242 | if (qeth_eddp_check_buffers_for_context(queue, ctx) |
| 3243 | < 0) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3244 | rc = -EBUSY; |
| 3245 | goto out; |
| 3246 | } |
| 3247 | } |
| 3248 | } |
| 3249 | if (ctx == NULL) |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame^] | 3250 | tmp = qeth_fill_buffer(queue, buffer, skb, hdr, -1, 0); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3251 | else { |
| 3252 | tmp = qeth_eddp_fill_buffer(queue, ctx, |
| 3253 | queue->next_buf_to_fill); |
| 3254 | if (tmp < 0) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3255 | rc = -EBUSY; |
| 3256 | goto out; |
| 3257 | } |
| 3258 | } |
| 3259 | queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) % |
| 3260 | QDIO_MAX_BUFFERS_PER_Q; |
| 3261 | flush_count += tmp; |
| 3262 | out: |
| 3263 | if (flush_count) |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 3264 | qeth_flush_buffers(queue, start_index, flush_count); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3265 | else if (!atomic_read(&queue->set_pci_flags_count)) |
| 3266 | atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH); |
| 3267 | /* |
| 3268 | * queue->state will go from LOCKED -> UNLOCKED or from |
| 3269 | * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us |
| 3270 | * (switch packing state or flush buffer to get another pci flag out). |
| 3271 | * In that case we will enter this loop |
| 3272 | */ |
| 3273 | while (atomic_dec_return(&queue->state)) { |
| 3274 | flush_count = 0; |
| 3275 | start_index = queue->next_buf_to_fill; |
| 3276 | /* check if we can go back to non-packing state */ |
| 3277 | flush_count += qeth_switch_to_nonpacking_if_needed(queue); |
| 3278 | /* |
| 3279 | * check if we need to flush a packing buffer to get a pci |
| 3280 | * flag out on the queue |
| 3281 | */ |
| 3282 | if (!flush_count && !atomic_read(&queue->set_pci_flags_count)) |
| 3283 | flush_count += qeth_flush_buffers_on_no_pci(queue); |
| 3284 | if (flush_count) |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 3285 | qeth_flush_buffers(queue, start_index, flush_count); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3286 | } |
| 3287 | /* at this point the queue is UNLOCKED again */ |
| 3288 | if (queue->card->options.performance_stats && do_pack) |
| 3289 | queue->card->perf_stats.bufs_sent_pack += flush_count; |
| 3290 | |
| 3291 | return rc; |
| 3292 | } |
| 3293 | EXPORT_SYMBOL_GPL(qeth_do_send_packet); |
| 3294 | |
| 3295 | static int qeth_setadp_promisc_mode_cb(struct qeth_card *card, |
| 3296 | struct qeth_reply *reply, unsigned long data) |
| 3297 | { |
| 3298 | struct qeth_ipa_cmd *cmd; |
| 3299 | struct qeth_ipacmd_setadpparms *setparms; |
| 3300 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3301 | QETH_DBF_TEXT(TRACE, 4, "prmadpcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3302 | |
| 3303 | cmd = (struct qeth_ipa_cmd *) data; |
| 3304 | setparms = &(cmd->data.setadapterparms); |
| 3305 | |
| 3306 | qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd); |
| 3307 | if (cmd->hdr.return_code) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3308 | QETH_DBF_TEXT_(TRACE, 4, "prmrc%2.2x", cmd->hdr.return_code); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3309 | setparms->data.mode = SET_PROMISC_MODE_OFF; |
| 3310 | } |
| 3311 | card->info.promisc_mode = setparms->data.mode; |
| 3312 | return 0; |
| 3313 | } |
| 3314 | |
| 3315 | void qeth_setadp_promisc_mode(struct qeth_card *card) |
| 3316 | { |
| 3317 | enum qeth_ipa_promisc_modes mode; |
| 3318 | struct net_device *dev = card->dev; |
| 3319 | struct qeth_cmd_buffer *iob; |
| 3320 | struct qeth_ipa_cmd *cmd; |
| 3321 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3322 | QETH_DBF_TEXT(TRACE, 4, "setprom"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3323 | |
| 3324 | if (((dev->flags & IFF_PROMISC) && |
| 3325 | (card->info.promisc_mode == SET_PROMISC_MODE_ON)) || |
| 3326 | (!(dev->flags & IFF_PROMISC) && |
| 3327 | (card->info.promisc_mode == SET_PROMISC_MODE_OFF))) |
| 3328 | return; |
| 3329 | mode = SET_PROMISC_MODE_OFF; |
| 3330 | if (dev->flags & IFF_PROMISC) |
| 3331 | mode = SET_PROMISC_MODE_ON; |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3332 | QETH_DBF_TEXT_(TRACE, 4, "mode:%x", mode); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3333 | |
| 3334 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE, |
| 3335 | sizeof(struct qeth_ipacmd_setadpparms)); |
| 3336 | cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE); |
| 3337 | cmd->data.setadapterparms.data.mode = mode; |
| 3338 | qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL); |
| 3339 | } |
| 3340 | EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode); |
| 3341 | |
| 3342 | int qeth_change_mtu(struct net_device *dev, int new_mtu) |
| 3343 | { |
| 3344 | struct qeth_card *card; |
| 3345 | char dbf_text[15]; |
| 3346 | |
Heiko Carstens | 509e256 | 2008-07-26 02:24:10 -0700 | [diff] [blame] | 3347 | card = dev->ml_priv; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3348 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3349 | QETH_DBF_TEXT(TRACE, 4, "chgmtu"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3350 | sprintf(dbf_text, "%8x", new_mtu); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3351 | QETH_DBF_TEXT(TRACE, 4, dbf_text); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3352 | |
| 3353 | if (new_mtu < 64) |
| 3354 | return -EINVAL; |
| 3355 | if (new_mtu > 65535) |
| 3356 | return -EINVAL; |
| 3357 | if ((!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) && |
| 3358 | (!qeth_mtu_is_valid(card, new_mtu))) |
| 3359 | return -EINVAL; |
| 3360 | dev->mtu = new_mtu; |
| 3361 | return 0; |
| 3362 | } |
| 3363 | EXPORT_SYMBOL_GPL(qeth_change_mtu); |
| 3364 | |
| 3365 | struct net_device_stats *qeth_get_stats(struct net_device *dev) |
| 3366 | { |
| 3367 | struct qeth_card *card; |
| 3368 | |
Heiko Carstens | 509e256 | 2008-07-26 02:24:10 -0700 | [diff] [blame] | 3369 | card = dev->ml_priv; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3370 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3371 | QETH_DBF_TEXT(TRACE, 5, "getstat"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3372 | |
| 3373 | return &card->stats; |
| 3374 | } |
| 3375 | EXPORT_SYMBOL_GPL(qeth_get_stats); |
| 3376 | |
| 3377 | static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card, |
| 3378 | struct qeth_reply *reply, unsigned long data) |
| 3379 | { |
| 3380 | struct qeth_ipa_cmd *cmd; |
| 3381 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3382 | QETH_DBF_TEXT(TRACE, 4, "chgmaccb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3383 | |
| 3384 | cmd = (struct qeth_ipa_cmd *) data; |
| 3385 | if (!card->options.layer2 || |
| 3386 | !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) { |
| 3387 | memcpy(card->dev->dev_addr, |
| 3388 | &cmd->data.setadapterparms.data.change_addr.addr, |
| 3389 | OSA_ADDR_LEN); |
| 3390 | card->info.mac_bits |= QETH_LAYER2_MAC_READ; |
| 3391 | } |
| 3392 | qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd); |
| 3393 | return 0; |
| 3394 | } |
| 3395 | |
| 3396 | int qeth_setadpparms_change_macaddr(struct qeth_card *card) |
| 3397 | { |
| 3398 | int rc; |
| 3399 | struct qeth_cmd_buffer *iob; |
| 3400 | struct qeth_ipa_cmd *cmd; |
| 3401 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3402 | QETH_DBF_TEXT(TRACE, 4, "chgmac"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3403 | |
| 3404 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS, |
| 3405 | sizeof(struct qeth_ipacmd_setadpparms)); |
| 3406 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| 3407 | cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC; |
| 3408 | cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN; |
| 3409 | memcpy(&cmd->data.setadapterparms.data.change_addr.addr, |
| 3410 | card->dev->dev_addr, OSA_ADDR_LEN); |
| 3411 | rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb, |
| 3412 | NULL); |
| 3413 | return rc; |
| 3414 | } |
| 3415 | EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr); |
| 3416 | |
| 3417 | void qeth_tx_timeout(struct net_device *dev) |
| 3418 | { |
| 3419 | struct qeth_card *card; |
| 3420 | |
Heiko Carstens | 509e256 | 2008-07-26 02:24:10 -0700 | [diff] [blame] | 3421 | card = dev->ml_priv; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3422 | card->stats.tx_errors++; |
| 3423 | qeth_schedule_recovery(card); |
| 3424 | } |
| 3425 | EXPORT_SYMBOL_GPL(qeth_tx_timeout); |
| 3426 | |
| 3427 | int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum) |
| 3428 | { |
Heiko Carstens | 509e256 | 2008-07-26 02:24:10 -0700 | [diff] [blame] | 3429 | struct qeth_card *card = dev->ml_priv; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3430 | int rc = 0; |
| 3431 | |
| 3432 | switch (regnum) { |
| 3433 | case MII_BMCR: /* Basic mode control register */ |
| 3434 | rc = BMCR_FULLDPLX; |
| 3435 | if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) && |
| 3436 | (card->info.link_type != QETH_LINK_TYPE_OSN) && |
| 3437 | (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH)) |
| 3438 | rc |= BMCR_SPEED100; |
| 3439 | break; |
| 3440 | case MII_BMSR: /* Basic mode status register */ |
| 3441 | rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS | |
| 3442 | BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL | |
| 3443 | BMSR_100BASE4; |
| 3444 | break; |
| 3445 | case MII_PHYSID1: /* PHYS ID 1 */ |
| 3446 | rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) | |
| 3447 | dev->dev_addr[2]; |
| 3448 | rc = (rc >> 5) & 0xFFFF; |
| 3449 | break; |
| 3450 | case MII_PHYSID2: /* PHYS ID 2 */ |
| 3451 | rc = (dev->dev_addr[2] << 10) & 0xFFFF; |
| 3452 | break; |
| 3453 | case MII_ADVERTISE: /* Advertisement control reg */ |
| 3454 | rc = ADVERTISE_ALL; |
| 3455 | break; |
| 3456 | case MII_LPA: /* Link partner ability reg */ |
| 3457 | rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL | |
| 3458 | LPA_100BASE4 | LPA_LPACK; |
| 3459 | break; |
| 3460 | case MII_EXPANSION: /* Expansion register */ |
| 3461 | break; |
| 3462 | case MII_DCOUNTER: /* disconnect counter */ |
| 3463 | break; |
| 3464 | case MII_FCSCOUNTER: /* false carrier counter */ |
| 3465 | break; |
| 3466 | case MII_NWAYTEST: /* N-way auto-neg test register */ |
| 3467 | break; |
| 3468 | case MII_RERRCOUNTER: /* rx error counter */ |
| 3469 | rc = card->stats.rx_errors; |
| 3470 | break; |
| 3471 | case MII_SREVISION: /* silicon revision */ |
| 3472 | break; |
| 3473 | case MII_RESV1: /* reserved 1 */ |
| 3474 | break; |
| 3475 | case MII_LBRERROR: /* loopback, rx, bypass error */ |
| 3476 | break; |
| 3477 | case MII_PHYADDR: /* physical address */ |
| 3478 | break; |
| 3479 | case MII_RESV2: /* reserved 2 */ |
| 3480 | break; |
| 3481 | case MII_TPISTATUS: /* TPI status for 10mbps */ |
| 3482 | break; |
| 3483 | case MII_NCONFIG: /* network interface config */ |
| 3484 | break; |
| 3485 | default: |
| 3486 | break; |
| 3487 | } |
| 3488 | return rc; |
| 3489 | } |
| 3490 | EXPORT_SYMBOL_GPL(qeth_mdio_read); |
| 3491 | |
| 3492 | static int qeth_send_ipa_snmp_cmd(struct qeth_card *card, |
| 3493 | struct qeth_cmd_buffer *iob, int len, |
| 3494 | int (*reply_cb)(struct qeth_card *, struct qeth_reply *, |
| 3495 | unsigned long), |
| 3496 | void *reply_param) |
| 3497 | { |
| 3498 | u16 s1, s2; |
| 3499 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3500 | QETH_DBF_TEXT(TRACE, 4, "sendsnmp"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3501 | |
| 3502 | memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); |
| 3503 | memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), |
| 3504 | &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); |
| 3505 | /* adjust PDU length fields in IPA_PDU_HEADER */ |
| 3506 | s1 = (u32) IPA_PDU_HEADER_SIZE + len; |
| 3507 | s2 = (u32) len; |
| 3508 | memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); |
| 3509 | memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); |
| 3510 | memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); |
| 3511 | memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); |
| 3512 | return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob, |
| 3513 | reply_cb, reply_param); |
| 3514 | } |
| 3515 | |
| 3516 | static int qeth_snmp_command_cb(struct qeth_card *card, |
| 3517 | struct qeth_reply *reply, unsigned long sdata) |
| 3518 | { |
| 3519 | struct qeth_ipa_cmd *cmd; |
| 3520 | struct qeth_arp_query_info *qinfo; |
| 3521 | struct qeth_snmp_cmd *snmp; |
| 3522 | unsigned char *data; |
| 3523 | __u16 data_len; |
| 3524 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3525 | QETH_DBF_TEXT(TRACE, 3, "snpcmdcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3526 | |
| 3527 | cmd = (struct qeth_ipa_cmd *) sdata; |
| 3528 | data = (unsigned char *)((char *)cmd - reply->offset); |
| 3529 | qinfo = (struct qeth_arp_query_info *) reply->param; |
| 3530 | snmp = &cmd->data.setadapterparms.data.snmp; |
| 3531 | |
| 3532 | if (cmd->hdr.return_code) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3533 | QETH_DBF_TEXT_(TRACE, 4, "scer1%i", cmd->hdr.return_code); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3534 | return 0; |
| 3535 | } |
| 3536 | if (cmd->data.setadapterparms.hdr.return_code) { |
| 3537 | cmd->hdr.return_code = |
| 3538 | cmd->data.setadapterparms.hdr.return_code; |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3539 | QETH_DBF_TEXT_(TRACE, 4, "scer2%i", cmd->hdr.return_code); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3540 | return 0; |
| 3541 | } |
| 3542 | data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data)); |
| 3543 | if (cmd->data.setadapterparms.hdr.seq_no == 1) |
| 3544 | data_len -= (__u16)((char *)&snmp->data - (char *)cmd); |
| 3545 | else |
| 3546 | data_len -= (__u16)((char *)&snmp->request - (char *)cmd); |
| 3547 | |
| 3548 | /* check if there is enough room in userspace */ |
| 3549 | if ((qinfo->udata_len - qinfo->udata_offset) < data_len) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3550 | QETH_DBF_TEXT_(TRACE, 4, "scer3%i", -ENOMEM); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3551 | cmd->hdr.return_code = -ENOMEM; |
| 3552 | return 0; |
| 3553 | } |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3554 | QETH_DBF_TEXT_(TRACE, 4, "snore%i", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3555 | cmd->data.setadapterparms.hdr.used_total); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3556 | QETH_DBF_TEXT_(TRACE, 4, "sseqn%i", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3557 | cmd->data.setadapterparms.hdr.seq_no); |
| 3558 | /*copy entries to user buffer*/ |
| 3559 | if (cmd->data.setadapterparms.hdr.seq_no == 1) { |
| 3560 | memcpy(qinfo->udata + qinfo->udata_offset, |
| 3561 | (char *)snmp, |
| 3562 | data_len + offsetof(struct qeth_snmp_cmd, data)); |
| 3563 | qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data); |
| 3564 | } else { |
| 3565 | memcpy(qinfo->udata + qinfo->udata_offset, |
| 3566 | (char *)&snmp->request, data_len); |
| 3567 | } |
| 3568 | qinfo->udata_offset += data_len; |
| 3569 | /* check if all replies received ... */ |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3570 | QETH_DBF_TEXT_(TRACE, 4, "srtot%i", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3571 | cmd->data.setadapterparms.hdr.used_total); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3572 | QETH_DBF_TEXT_(TRACE, 4, "srseq%i", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3573 | cmd->data.setadapterparms.hdr.seq_no); |
| 3574 | if (cmd->data.setadapterparms.hdr.seq_no < |
| 3575 | cmd->data.setadapterparms.hdr.used_total) |
| 3576 | return 1; |
| 3577 | return 0; |
| 3578 | } |
| 3579 | |
| 3580 | int qeth_snmp_command(struct qeth_card *card, char __user *udata) |
| 3581 | { |
| 3582 | struct qeth_cmd_buffer *iob; |
| 3583 | struct qeth_ipa_cmd *cmd; |
| 3584 | struct qeth_snmp_ureq *ureq; |
| 3585 | int req_len; |
| 3586 | struct qeth_arp_query_info qinfo = {0, }; |
| 3587 | int rc = 0; |
| 3588 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3589 | QETH_DBF_TEXT(TRACE, 3, "snmpcmd"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3590 | |
| 3591 | if (card->info.guestlan) |
| 3592 | return -EOPNOTSUPP; |
| 3593 | |
| 3594 | if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) && |
| 3595 | (!card->options.layer2)) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3596 | return -EOPNOTSUPP; |
| 3597 | } |
| 3598 | /* skip 4 bytes (data_len struct member) to get req_len */ |
| 3599 | if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int))) |
| 3600 | return -EFAULT; |
| 3601 | ureq = kmalloc(req_len+sizeof(struct qeth_snmp_ureq_hdr), GFP_KERNEL); |
| 3602 | if (!ureq) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3603 | QETH_DBF_TEXT(TRACE, 2, "snmpnome"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3604 | return -ENOMEM; |
| 3605 | } |
| 3606 | if (copy_from_user(ureq, udata, |
| 3607 | req_len + sizeof(struct qeth_snmp_ureq_hdr))) { |
| 3608 | kfree(ureq); |
| 3609 | return -EFAULT; |
| 3610 | } |
| 3611 | qinfo.udata_len = ureq->hdr.data_len; |
| 3612 | qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL); |
| 3613 | if (!qinfo.udata) { |
| 3614 | kfree(ureq); |
| 3615 | return -ENOMEM; |
| 3616 | } |
| 3617 | qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr); |
| 3618 | |
| 3619 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL, |
| 3620 | QETH_SNMP_SETADP_CMDLENGTH + req_len); |
| 3621 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| 3622 | memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len); |
| 3623 | rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len, |
| 3624 | qeth_snmp_command_cb, (void *)&qinfo); |
| 3625 | if (rc) |
Frank Blaschka | 14cc21b | 2008-06-06 12:37:46 +0200 | [diff] [blame] | 3626 | QETH_DBF_MESSAGE(2, "SNMP command failed on %s: (0x%x)\n", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3627 | QETH_CARD_IFNAME(card), rc); |
| 3628 | else { |
| 3629 | if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) |
| 3630 | rc = -EFAULT; |
| 3631 | } |
| 3632 | |
| 3633 | kfree(ureq); |
| 3634 | kfree(qinfo.udata); |
| 3635 | return rc; |
| 3636 | } |
| 3637 | EXPORT_SYMBOL_GPL(qeth_snmp_command); |
| 3638 | |
| 3639 | static inline int qeth_get_qdio_q_format(struct qeth_card *card) |
| 3640 | { |
| 3641 | switch (card->info.type) { |
| 3642 | case QETH_CARD_TYPE_IQD: |
| 3643 | return 2; |
| 3644 | default: |
| 3645 | return 0; |
| 3646 | } |
| 3647 | } |
| 3648 | |
| 3649 | static int qeth_qdio_establish(struct qeth_card *card) |
| 3650 | { |
| 3651 | struct qdio_initialize init_data; |
| 3652 | char *qib_param_field; |
| 3653 | struct qdio_buffer **in_sbal_ptrs; |
| 3654 | struct qdio_buffer **out_sbal_ptrs; |
| 3655 | int i, j, k; |
| 3656 | int rc = 0; |
| 3657 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3658 | QETH_DBF_TEXT(SETUP, 2, "qdioest"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3659 | |
| 3660 | qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char), |
| 3661 | GFP_KERNEL); |
| 3662 | if (!qib_param_field) |
| 3663 | return -ENOMEM; |
| 3664 | |
| 3665 | qeth_create_qib_param_field(card, qib_param_field); |
| 3666 | qeth_create_qib_param_field_blkt(card, qib_param_field); |
| 3667 | |
| 3668 | in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *), |
| 3669 | GFP_KERNEL); |
| 3670 | if (!in_sbal_ptrs) { |
| 3671 | kfree(qib_param_field); |
| 3672 | return -ENOMEM; |
| 3673 | } |
| 3674 | for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) |
| 3675 | in_sbal_ptrs[i] = (struct qdio_buffer *) |
| 3676 | virt_to_phys(card->qdio.in_q->bufs[i].buffer); |
| 3677 | |
| 3678 | out_sbal_ptrs = |
| 3679 | kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q * |
| 3680 | sizeof(void *), GFP_KERNEL); |
| 3681 | if (!out_sbal_ptrs) { |
| 3682 | kfree(in_sbal_ptrs); |
| 3683 | kfree(qib_param_field); |
| 3684 | return -ENOMEM; |
| 3685 | } |
| 3686 | for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i) |
| 3687 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) { |
| 3688 | out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys( |
| 3689 | card->qdio.out_qs[i]->bufs[j].buffer); |
| 3690 | } |
| 3691 | |
| 3692 | memset(&init_data, 0, sizeof(struct qdio_initialize)); |
| 3693 | init_data.cdev = CARD_DDEV(card); |
| 3694 | init_data.q_format = qeth_get_qdio_q_format(card); |
| 3695 | init_data.qib_param_field_format = 0; |
| 3696 | init_data.qib_param_field = qib_param_field; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3697 | init_data.no_input_qs = 1; |
| 3698 | init_data.no_output_qs = card->qdio.no_out_queues; |
| 3699 | init_data.input_handler = card->discipline.input_handler; |
| 3700 | init_data.output_handler = card->discipline.output_handler; |
| 3701 | init_data.int_parm = (unsigned long) card; |
| 3702 | init_data.flags = QDIO_INBOUND_0COPY_SBALS | |
| 3703 | QDIO_OUTBOUND_0COPY_SBALS | |
| 3704 | QDIO_USE_OUTBOUND_PCIS; |
| 3705 | init_data.input_sbal_addr_array = (void **) in_sbal_ptrs; |
| 3706 | init_data.output_sbal_addr_array = (void **) out_sbal_ptrs; |
| 3707 | |
| 3708 | if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED, |
| 3709 | QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) { |
| 3710 | rc = qdio_initialize(&init_data); |
| 3711 | if (rc) |
| 3712 | atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); |
| 3713 | } |
| 3714 | kfree(out_sbal_ptrs); |
| 3715 | kfree(in_sbal_ptrs); |
| 3716 | kfree(qib_param_field); |
| 3717 | return rc; |
| 3718 | } |
| 3719 | |
| 3720 | static void qeth_core_free_card(struct qeth_card *card) |
| 3721 | { |
| 3722 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3723 | QETH_DBF_TEXT(SETUP, 2, "freecrd"); |
| 3724 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3725 | qeth_clean_channel(&card->read); |
| 3726 | qeth_clean_channel(&card->write); |
| 3727 | if (card->dev) |
| 3728 | free_netdev(card->dev); |
| 3729 | kfree(card->ip_tbd_list); |
| 3730 | qeth_free_qdio_buffers(card); |
| 3731 | kfree(card); |
| 3732 | } |
| 3733 | |
| 3734 | static struct ccw_device_id qeth_ids[] = { |
| 3735 | {CCW_DEVICE(0x1731, 0x01), .driver_info = QETH_CARD_TYPE_OSAE}, |
| 3736 | {CCW_DEVICE(0x1731, 0x05), .driver_info = QETH_CARD_TYPE_IQD}, |
| 3737 | {CCW_DEVICE(0x1731, 0x06), .driver_info = QETH_CARD_TYPE_OSN}, |
| 3738 | {}, |
| 3739 | }; |
| 3740 | MODULE_DEVICE_TABLE(ccw, qeth_ids); |
| 3741 | |
| 3742 | static struct ccw_driver qeth_ccw_driver = { |
| 3743 | .name = "qeth", |
| 3744 | .ids = qeth_ids, |
| 3745 | .probe = ccwgroup_probe_ccwdev, |
| 3746 | .remove = ccwgroup_remove_ccwdev, |
| 3747 | }; |
| 3748 | |
| 3749 | static int qeth_core_driver_group(const char *buf, struct device *root_dev, |
| 3750 | unsigned long driver_id) |
| 3751 | { |
Ursula Braun | 022b660 | 2008-04-24 10:15:20 +0200 | [diff] [blame] | 3752 | return ccwgroup_create_from_string(root_dev, driver_id, |
| 3753 | &qeth_ccw_driver, 3, buf); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3754 | } |
| 3755 | |
| 3756 | int qeth_core_hardsetup_card(struct qeth_card *card) |
| 3757 | { |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 3758 | struct qdio_ssqd_desc *qdio_ssqd; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3759 | int retries = 3; |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 3760 | int mpno = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3761 | int rc; |
| 3762 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3763 | QETH_DBF_TEXT(SETUP, 2, "hrdsetup"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3764 | atomic_set(&card->force_alloc_skb, 0); |
| 3765 | retry: |
| 3766 | if (retries < 3) { |
| 3767 | PRINT_WARN("Retrying to do IDX activates.\n"); |
| 3768 | ccw_device_set_offline(CARD_DDEV(card)); |
| 3769 | ccw_device_set_offline(CARD_WDEV(card)); |
| 3770 | ccw_device_set_offline(CARD_RDEV(card)); |
| 3771 | ccw_device_set_online(CARD_RDEV(card)); |
| 3772 | ccw_device_set_online(CARD_WDEV(card)); |
| 3773 | ccw_device_set_online(CARD_DDEV(card)); |
| 3774 | } |
| 3775 | rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD); |
| 3776 | if (rc == -ERESTARTSYS) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3777 | QETH_DBF_TEXT(SETUP, 2, "break1"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3778 | return rc; |
| 3779 | } else if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3780 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3781 | if (--retries < 0) |
| 3782 | goto out; |
| 3783 | else |
| 3784 | goto retry; |
| 3785 | } |
| 3786 | |
| 3787 | rc = qeth_get_unitaddr(card); |
| 3788 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3789 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3790 | return rc; |
| 3791 | } |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 3792 | |
| 3793 | qdio_ssqd = qdio_get_ssqd_desc(CARD_DDEV(card)); |
| 3794 | if (qdio_ssqd) |
| 3795 | mpno = qdio_ssqd->pcnt; |
Ursula Braun | a74b08c | 2008-04-24 10:15:26 +0200 | [diff] [blame] | 3796 | if (mpno) |
| 3797 | mpno = min(mpno - 1, QETH_MAX_PORTNO); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3798 | if (card->info.portno > mpno) { |
Frank Blaschka | 14cc21b | 2008-06-06 12:37:46 +0200 | [diff] [blame] | 3799 | QETH_DBF_MESSAGE(2, "Device %s does not offer port number %d" |
| 3800 | "\n.", CARD_BUS_ID(card), card->info.portno); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3801 | rc = -ENODEV; |
| 3802 | goto out; |
| 3803 | } |
| 3804 | qeth_init_tokens(card); |
| 3805 | qeth_init_func_level(card); |
| 3806 | rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb); |
| 3807 | if (rc == -ERESTARTSYS) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3808 | QETH_DBF_TEXT(SETUP, 2, "break2"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3809 | return rc; |
| 3810 | } else if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3811 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3812 | if (--retries < 0) |
| 3813 | goto out; |
| 3814 | else |
| 3815 | goto retry; |
| 3816 | } |
| 3817 | rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb); |
| 3818 | if (rc == -ERESTARTSYS) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3819 | QETH_DBF_TEXT(SETUP, 2, "break3"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3820 | return rc; |
| 3821 | } else if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3822 | QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3823 | if (--retries < 0) |
| 3824 | goto out; |
| 3825 | else |
| 3826 | goto retry; |
| 3827 | } |
| 3828 | rc = qeth_mpc_initialize(card); |
| 3829 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3830 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3831 | goto out; |
| 3832 | } |
| 3833 | return 0; |
| 3834 | out: |
| 3835 | PRINT_ERR("Initialization in hardsetup failed! rc=%d\n", rc); |
| 3836 | return rc; |
| 3837 | } |
| 3838 | EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card); |
| 3839 | |
| 3840 | static inline int qeth_create_skb_frag(struct qdio_buffer_element *element, |
| 3841 | struct sk_buff **pskb, int offset, int *pfrag, int data_len) |
| 3842 | { |
| 3843 | struct page *page = virt_to_page(element->addr); |
| 3844 | if (*pskb == NULL) { |
| 3845 | /* the upper protocol layers assume that there is data in the |
| 3846 | * skb itself. Copy a small amount (64 bytes) to make them |
| 3847 | * happy. */ |
| 3848 | *pskb = dev_alloc_skb(64 + ETH_HLEN); |
| 3849 | if (!(*pskb)) |
| 3850 | return -ENOMEM; |
| 3851 | skb_reserve(*pskb, ETH_HLEN); |
| 3852 | if (data_len <= 64) { |
| 3853 | memcpy(skb_put(*pskb, data_len), element->addr + offset, |
| 3854 | data_len); |
| 3855 | } else { |
| 3856 | get_page(page); |
| 3857 | memcpy(skb_put(*pskb, 64), element->addr + offset, 64); |
| 3858 | skb_fill_page_desc(*pskb, *pfrag, page, offset + 64, |
| 3859 | data_len - 64); |
| 3860 | (*pskb)->data_len += data_len - 64; |
| 3861 | (*pskb)->len += data_len - 64; |
| 3862 | (*pskb)->truesize += data_len - 64; |
| 3863 | (*pfrag)++; |
| 3864 | } |
| 3865 | } else { |
| 3866 | get_page(page); |
| 3867 | skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len); |
| 3868 | (*pskb)->data_len += data_len; |
| 3869 | (*pskb)->len += data_len; |
| 3870 | (*pskb)->truesize += data_len; |
| 3871 | (*pfrag)++; |
| 3872 | } |
| 3873 | return 0; |
| 3874 | } |
| 3875 | |
| 3876 | struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card, |
| 3877 | struct qdio_buffer *buffer, |
| 3878 | struct qdio_buffer_element **__element, int *__offset, |
| 3879 | struct qeth_hdr **hdr) |
| 3880 | { |
| 3881 | struct qdio_buffer_element *element = *__element; |
| 3882 | int offset = *__offset; |
| 3883 | struct sk_buff *skb = NULL; |
| 3884 | int skb_len; |
| 3885 | void *data_ptr; |
| 3886 | int data_len; |
| 3887 | int headroom = 0; |
| 3888 | int use_rx_sg = 0; |
| 3889 | int frag = 0; |
| 3890 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3891 | /* qeth_hdr must not cross element boundaries */ |
| 3892 | if (element->length < offset + sizeof(struct qeth_hdr)) { |
| 3893 | if (qeth_is_last_sbale(element)) |
| 3894 | return NULL; |
| 3895 | element++; |
| 3896 | offset = 0; |
| 3897 | if (element->length < sizeof(struct qeth_hdr)) |
| 3898 | return NULL; |
| 3899 | } |
| 3900 | *hdr = element->addr + offset; |
| 3901 | |
| 3902 | offset += sizeof(struct qeth_hdr); |
| 3903 | if (card->options.layer2) { |
| 3904 | if (card->info.type == QETH_CARD_TYPE_OSN) { |
| 3905 | skb_len = (*hdr)->hdr.osn.pdu_length; |
| 3906 | headroom = sizeof(struct qeth_hdr); |
| 3907 | } else { |
| 3908 | skb_len = (*hdr)->hdr.l2.pkt_length; |
| 3909 | } |
| 3910 | } else { |
| 3911 | skb_len = (*hdr)->hdr.l3.length; |
Frank Blaschka | b403e68 | 2008-04-01 10:26:59 +0200 | [diff] [blame] | 3912 | if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) || |
| 3913 | (card->info.link_type == QETH_LINK_TYPE_HSTR)) |
| 3914 | headroom = TR_HLEN; |
| 3915 | else |
| 3916 | headroom = ETH_HLEN; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3917 | } |
| 3918 | |
| 3919 | if (!skb_len) |
| 3920 | return NULL; |
| 3921 | |
| 3922 | if ((skb_len >= card->options.rx_sg_cb) && |
| 3923 | (!(card->info.type == QETH_CARD_TYPE_OSN)) && |
| 3924 | (!atomic_read(&card->force_alloc_skb))) { |
| 3925 | use_rx_sg = 1; |
| 3926 | } else { |
| 3927 | skb = dev_alloc_skb(skb_len + headroom); |
| 3928 | if (!skb) |
| 3929 | goto no_mem; |
| 3930 | if (headroom) |
| 3931 | skb_reserve(skb, headroom); |
| 3932 | } |
| 3933 | |
| 3934 | data_ptr = element->addr + offset; |
| 3935 | while (skb_len) { |
| 3936 | data_len = min(skb_len, (int)(element->length - offset)); |
| 3937 | if (data_len) { |
| 3938 | if (use_rx_sg) { |
| 3939 | if (qeth_create_skb_frag(element, &skb, offset, |
| 3940 | &frag, data_len)) |
| 3941 | goto no_mem; |
| 3942 | } else { |
| 3943 | memcpy(skb_put(skb, data_len), data_ptr, |
| 3944 | data_len); |
| 3945 | } |
| 3946 | } |
| 3947 | skb_len -= data_len; |
| 3948 | if (skb_len) { |
| 3949 | if (qeth_is_last_sbale(element)) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3950 | QETH_DBF_TEXT(TRACE, 4, "unexeob"); |
| 3951 | QETH_DBF_TEXT_(TRACE, 4, "%s", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3952 | CARD_BUS_ID(card)); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3953 | QETH_DBF_TEXT(QERR, 2, "unexeob"); |
| 3954 | QETH_DBF_TEXT_(QERR, 2, "%s", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3955 | CARD_BUS_ID(card)); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3956 | QETH_DBF_HEX(MISC, 4, buffer, sizeof(*buffer)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3957 | dev_kfree_skb_any(skb); |
| 3958 | card->stats.rx_errors++; |
| 3959 | return NULL; |
| 3960 | } |
| 3961 | element++; |
| 3962 | offset = 0; |
| 3963 | data_ptr = element->addr; |
| 3964 | } else { |
| 3965 | offset += data_len; |
| 3966 | } |
| 3967 | } |
| 3968 | *__element = element; |
| 3969 | *__offset = offset; |
| 3970 | if (use_rx_sg && card->options.performance_stats) { |
| 3971 | card->perf_stats.sg_skbs_rx++; |
| 3972 | card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags; |
| 3973 | } |
| 3974 | return skb; |
| 3975 | no_mem: |
| 3976 | if (net_ratelimit()) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3977 | QETH_DBF_TEXT(TRACE, 2, "noskbmem"); |
| 3978 | QETH_DBF_TEXT_(TRACE, 2, "%s", CARD_BUS_ID(card)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3979 | } |
| 3980 | card->stats.rx_dropped++; |
| 3981 | return NULL; |
| 3982 | } |
| 3983 | EXPORT_SYMBOL_GPL(qeth_core_get_next_skb); |
| 3984 | |
| 3985 | static void qeth_unregister_dbf_views(void) |
| 3986 | { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3987 | int x; |
| 3988 | for (x = 0; x < QETH_DBF_INFOS; x++) { |
| 3989 | debug_unregister(qeth_dbf[x].id); |
| 3990 | qeth_dbf[x].id = NULL; |
| 3991 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3992 | } |
| 3993 | |
Peter Tiedemann | 345aa66 | 2008-06-06 12:37:47 +0200 | [diff] [blame] | 3994 | void qeth_dbf_longtext(enum qeth_dbf_names dbf_nix, int level, char *fmt, ...) |
Peter Tiedemann | cd02321 | 2008-04-24 10:15:21 +0200 | [diff] [blame] | 3995 | { |
| 3996 | char dbf_txt_buf[32]; |
Peter Tiedemann | 345aa66 | 2008-06-06 12:37:47 +0200 | [diff] [blame] | 3997 | va_list args; |
Peter Tiedemann | cd02321 | 2008-04-24 10:15:21 +0200 | [diff] [blame] | 3998 | |
| 3999 | if (level > (qeth_dbf[dbf_nix].id)->level) |
| 4000 | return; |
Peter Tiedemann | 345aa66 | 2008-06-06 12:37:47 +0200 | [diff] [blame] | 4001 | va_start(args, fmt); |
| 4002 | vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args); |
| 4003 | va_end(args); |
Peter Tiedemann | cd02321 | 2008-04-24 10:15:21 +0200 | [diff] [blame] | 4004 | debug_text_event(qeth_dbf[dbf_nix].id, level, dbf_txt_buf); |
Peter Tiedemann | cd02321 | 2008-04-24 10:15:21 +0200 | [diff] [blame] | 4005 | } |
| 4006 | EXPORT_SYMBOL_GPL(qeth_dbf_longtext); |
| 4007 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4008 | static int qeth_register_dbf_views(void) |
| 4009 | { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4010 | int ret; |
| 4011 | int x; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4012 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4013 | for (x = 0; x < QETH_DBF_INFOS; x++) { |
| 4014 | /* register the areas */ |
| 4015 | qeth_dbf[x].id = debug_register(qeth_dbf[x].name, |
| 4016 | qeth_dbf[x].pages, |
| 4017 | qeth_dbf[x].areas, |
| 4018 | qeth_dbf[x].len); |
| 4019 | if (qeth_dbf[x].id == NULL) { |
| 4020 | qeth_unregister_dbf_views(); |
| 4021 | return -ENOMEM; |
| 4022 | } |
| 4023 | |
| 4024 | /* register a view */ |
| 4025 | ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view); |
| 4026 | if (ret) { |
| 4027 | qeth_unregister_dbf_views(); |
| 4028 | return ret; |
| 4029 | } |
| 4030 | |
| 4031 | /* set a passing level */ |
| 4032 | debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4033 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4034 | |
| 4035 | return 0; |
| 4036 | } |
| 4037 | |
| 4038 | int qeth_core_load_discipline(struct qeth_card *card, |
| 4039 | enum qeth_discipline_id discipline) |
| 4040 | { |
| 4041 | int rc = 0; |
| 4042 | switch (discipline) { |
| 4043 | case QETH_DISCIPLINE_LAYER3: |
| 4044 | card->discipline.ccwgdriver = try_then_request_module( |
| 4045 | symbol_get(qeth_l3_ccwgroup_driver), |
| 4046 | "qeth_l3"); |
| 4047 | break; |
| 4048 | case QETH_DISCIPLINE_LAYER2: |
| 4049 | card->discipline.ccwgdriver = try_then_request_module( |
| 4050 | symbol_get(qeth_l2_ccwgroup_driver), |
| 4051 | "qeth_l2"); |
| 4052 | break; |
| 4053 | } |
| 4054 | if (!card->discipline.ccwgdriver) { |
| 4055 | PRINT_ERR("Support for discipline %d not present\n", |
| 4056 | discipline); |
| 4057 | rc = -EINVAL; |
| 4058 | } |
| 4059 | return rc; |
| 4060 | } |
| 4061 | |
| 4062 | void qeth_core_free_discipline(struct qeth_card *card) |
| 4063 | { |
| 4064 | if (card->options.layer2) |
| 4065 | symbol_put(qeth_l2_ccwgroup_driver); |
| 4066 | else |
| 4067 | symbol_put(qeth_l3_ccwgroup_driver); |
| 4068 | card->discipline.ccwgdriver = NULL; |
| 4069 | } |
| 4070 | |
| 4071 | static int qeth_core_probe_device(struct ccwgroup_device *gdev) |
| 4072 | { |
| 4073 | struct qeth_card *card; |
| 4074 | struct device *dev; |
| 4075 | int rc; |
| 4076 | unsigned long flags; |
| 4077 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4078 | QETH_DBF_TEXT(SETUP, 2, "probedev"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4079 | |
| 4080 | dev = &gdev->dev; |
| 4081 | if (!get_device(dev)) |
| 4082 | return -ENODEV; |
| 4083 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4084 | QETH_DBF_TEXT_(SETUP, 2, "%s", gdev->dev.bus_id); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4085 | |
| 4086 | card = qeth_alloc_card(); |
| 4087 | if (!card) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4088 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4089 | rc = -ENOMEM; |
| 4090 | goto err_dev; |
| 4091 | } |
| 4092 | card->read.ccwdev = gdev->cdev[0]; |
| 4093 | card->write.ccwdev = gdev->cdev[1]; |
| 4094 | card->data.ccwdev = gdev->cdev[2]; |
| 4095 | dev_set_drvdata(&gdev->dev, card); |
| 4096 | card->gdev = gdev; |
| 4097 | gdev->cdev[0]->handler = qeth_irq; |
| 4098 | gdev->cdev[1]->handler = qeth_irq; |
| 4099 | gdev->cdev[2]->handler = qeth_irq; |
| 4100 | |
| 4101 | rc = qeth_determine_card_type(card); |
| 4102 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4103 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4104 | goto err_card; |
| 4105 | } |
| 4106 | rc = qeth_setup_card(card); |
| 4107 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4108 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4109 | goto err_card; |
| 4110 | } |
| 4111 | |
| 4112 | if (card->info.type == QETH_CARD_TYPE_OSN) { |
| 4113 | rc = qeth_core_create_osn_attributes(dev); |
| 4114 | if (rc) |
| 4115 | goto err_card; |
| 4116 | rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2); |
| 4117 | if (rc) { |
| 4118 | qeth_core_remove_osn_attributes(dev); |
| 4119 | goto err_card; |
| 4120 | } |
| 4121 | rc = card->discipline.ccwgdriver->probe(card->gdev); |
| 4122 | if (rc) { |
| 4123 | qeth_core_free_discipline(card); |
| 4124 | qeth_core_remove_osn_attributes(dev); |
| 4125 | goto err_card; |
| 4126 | } |
| 4127 | } else { |
| 4128 | rc = qeth_core_create_device_attributes(dev); |
| 4129 | if (rc) |
| 4130 | goto err_card; |
| 4131 | } |
| 4132 | |
| 4133 | write_lock_irqsave(&qeth_core_card_list.rwlock, flags); |
| 4134 | list_add_tail(&card->list, &qeth_core_card_list.list); |
| 4135 | write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); |
| 4136 | return 0; |
| 4137 | |
| 4138 | err_card: |
| 4139 | qeth_core_free_card(card); |
| 4140 | err_dev: |
| 4141 | put_device(dev); |
| 4142 | return rc; |
| 4143 | } |
| 4144 | |
| 4145 | static void qeth_core_remove_device(struct ccwgroup_device *gdev) |
| 4146 | { |
| 4147 | unsigned long flags; |
| 4148 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| 4149 | |
| 4150 | if (card->discipline.ccwgdriver) { |
| 4151 | card->discipline.ccwgdriver->remove(gdev); |
| 4152 | qeth_core_free_discipline(card); |
| 4153 | } |
| 4154 | |
| 4155 | if (card->info.type == QETH_CARD_TYPE_OSN) { |
| 4156 | qeth_core_remove_osn_attributes(&gdev->dev); |
| 4157 | } else { |
| 4158 | qeth_core_remove_device_attributes(&gdev->dev); |
| 4159 | } |
| 4160 | write_lock_irqsave(&qeth_core_card_list.rwlock, flags); |
| 4161 | list_del(&card->list); |
| 4162 | write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); |
| 4163 | qeth_core_free_card(card); |
| 4164 | dev_set_drvdata(&gdev->dev, NULL); |
| 4165 | put_device(&gdev->dev); |
| 4166 | return; |
| 4167 | } |
| 4168 | |
| 4169 | static int qeth_core_set_online(struct ccwgroup_device *gdev) |
| 4170 | { |
| 4171 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| 4172 | int rc = 0; |
| 4173 | int def_discipline; |
| 4174 | |
| 4175 | if (!card->discipline.ccwgdriver) { |
| 4176 | if (card->info.type == QETH_CARD_TYPE_IQD) |
| 4177 | def_discipline = QETH_DISCIPLINE_LAYER3; |
| 4178 | else |
| 4179 | def_discipline = QETH_DISCIPLINE_LAYER2; |
| 4180 | rc = qeth_core_load_discipline(card, def_discipline); |
| 4181 | if (rc) |
| 4182 | goto err; |
| 4183 | rc = card->discipline.ccwgdriver->probe(card->gdev); |
| 4184 | if (rc) |
| 4185 | goto err; |
| 4186 | } |
| 4187 | rc = card->discipline.ccwgdriver->set_online(gdev); |
| 4188 | err: |
| 4189 | return rc; |
| 4190 | } |
| 4191 | |
| 4192 | static int qeth_core_set_offline(struct ccwgroup_device *gdev) |
| 4193 | { |
| 4194 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| 4195 | return card->discipline.ccwgdriver->set_offline(gdev); |
| 4196 | } |
| 4197 | |
| 4198 | static void qeth_core_shutdown(struct ccwgroup_device *gdev) |
| 4199 | { |
| 4200 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| 4201 | if (card->discipline.ccwgdriver && |
| 4202 | card->discipline.ccwgdriver->shutdown) |
| 4203 | card->discipline.ccwgdriver->shutdown(gdev); |
| 4204 | } |
| 4205 | |
| 4206 | static struct ccwgroup_driver qeth_core_ccwgroup_driver = { |
| 4207 | .owner = THIS_MODULE, |
| 4208 | .name = "qeth", |
| 4209 | .driver_id = 0xD8C5E3C8, |
| 4210 | .probe = qeth_core_probe_device, |
| 4211 | .remove = qeth_core_remove_device, |
| 4212 | .set_online = qeth_core_set_online, |
| 4213 | .set_offline = qeth_core_set_offline, |
| 4214 | .shutdown = qeth_core_shutdown, |
| 4215 | }; |
| 4216 | |
| 4217 | static ssize_t |
| 4218 | qeth_core_driver_group_store(struct device_driver *ddrv, const char *buf, |
| 4219 | size_t count) |
| 4220 | { |
| 4221 | int err; |
| 4222 | err = qeth_core_driver_group(buf, qeth_core_root_dev, |
| 4223 | qeth_core_ccwgroup_driver.driver_id); |
| 4224 | if (err) |
| 4225 | return err; |
| 4226 | else |
| 4227 | return count; |
| 4228 | } |
| 4229 | |
| 4230 | static DRIVER_ATTR(group, 0200, NULL, qeth_core_driver_group_store); |
| 4231 | |
| 4232 | static struct { |
| 4233 | const char str[ETH_GSTRING_LEN]; |
| 4234 | } qeth_ethtool_stats_keys[] = { |
| 4235 | /* 0 */{"rx skbs"}, |
| 4236 | {"rx buffers"}, |
| 4237 | {"tx skbs"}, |
| 4238 | {"tx buffers"}, |
| 4239 | {"tx skbs no packing"}, |
| 4240 | {"tx buffers no packing"}, |
| 4241 | {"tx skbs packing"}, |
| 4242 | {"tx buffers packing"}, |
| 4243 | {"tx sg skbs"}, |
| 4244 | {"tx sg frags"}, |
| 4245 | /* 10 */{"rx sg skbs"}, |
| 4246 | {"rx sg frags"}, |
| 4247 | {"rx sg page allocs"}, |
| 4248 | {"tx large kbytes"}, |
| 4249 | {"tx large count"}, |
| 4250 | {"tx pk state ch n->p"}, |
| 4251 | {"tx pk state ch p->n"}, |
| 4252 | {"tx pk watermark low"}, |
| 4253 | {"tx pk watermark high"}, |
| 4254 | {"queue 0 buffer usage"}, |
| 4255 | /* 20 */{"queue 1 buffer usage"}, |
| 4256 | {"queue 2 buffer usage"}, |
| 4257 | {"queue 3 buffer usage"}, |
| 4258 | {"rx handler time"}, |
| 4259 | {"rx handler count"}, |
| 4260 | {"rx do_QDIO time"}, |
| 4261 | {"rx do_QDIO count"}, |
| 4262 | {"tx handler time"}, |
| 4263 | {"tx handler count"}, |
| 4264 | {"tx time"}, |
| 4265 | /* 30 */{"tx count"}, |
| 4266 | {"tx do_QDIO time"}, |
| 4267 | {"tx do_QDIO count"}, |
| 4268 | }; |
| 4269 | |
| 4270 | int qeth_core_get_stats_count(struct net_device *dev) |
| 4271 | { |
| 4272 | return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN); |
| 4273 | } |
| 4274 | EXPORT_SYMBOL_GPL(qeth_core_get_stats_count); |
| 4275 | |
| 4276 | void qeth_core_get_ethtool_stats(struct net_device *dev, |
| 4277 | struct ethtool_stats *stats, u64 *data) |
| 4278 | { |
Heiko Carstens | 509e256 | 2008-07-26 02:24:10 -0700 | [diff] [blame] | 4279 | struct qeth_card *card = dev->ml_priv; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4280 | data[0] = card->stats.rx_packets - |
| 4281 | card->perf_stats.initial_rx_packets; |
| 4282 | data[1] = card->perf_stats.bufs_rec; |
| 4283 | data[2] = card->stats.tx_packets - |
| 4284 | card->perf_stats.initial_tx_packets; |
| 4285 | data[3] = card->perf_stats.bufs_sent; |
| 4286 | data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets |
| 4287 | - card->perf_stats.skbs_sent_pack; |
| 4288 | data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack; |
| 4289 | data[6] = card->perf_stats.skbs_sent_pack; |
| 4290 | data[7] = card->perf_stats.bufs_sent_pack; |
| 4291 | data[8] = card->perf_stats.sg_skbs_sent; |
| 4292 | data[9] = card->perf_stats.sg_frags_sent; |
| 4293 | data[10] = card->perf_stats.sg_skbs_rx; |
| 4294 | data[11] = card->perf_stats.sg_frags_rx; |
| 4295 | data[12] = card->perf_stats.sg_alloc_page_rx; |
| 4296 | data[13] = (card->perf_stats.large_send_bytes >> 10); |
| 4297 | data[14] = card->perf_stats.large_send_cnt; |
| 4298 | data[15] = card->perf_stats.sc_dp_p; |
| 4299 | data[16] = card->perf_stats.sc_p_dp; |
| 4300 | data[17] = QETH_LOW_WATERMARK_PACK; |
| 4301 | data[18] = QETH_HIGH_WATERMARK_PACK; |
| 4302 | data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers); |
| 4303 | data[20] = (card->qdio.no_out_queues > 1) ? |
| 4304 | atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0; |
| 4305 | data[21] = (card->qdio.no_out_queues > 2) ? |
| 4306 | atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0; |
| 4307 | data[22] = (card->qdio.no_out_queues > 3) ? |
| 4308 | atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0; |
| 4309 | data[23] = card->perf_stats.inbound_time; |
| 4310 | data[24] = card->perf_stats.inbound_cnt; |
| 4311 | data[25] = card->perf_stats.inbound_do_qdio_time; |
| 4312 | data[26] = card->perf_stats.inbound_do_qdio_cnt; |
| 4313 | data[27] = card->perf_stats.outbound_handler_time; |
| 4314 | data[28] = card->perf_stats.outbound_handler_cnt; |
| 4315 | data[29] = card->perf_stats.outbound_time; |
| 4316 | data[30] = card->perf_stats.outbound_cnt; |
| 4317 | data[31] = card->perf_stats.outbound_do_qdio_time; |
| 4318 | data[32] = card->perf_stats.outbound_do_qdio_cnt; |
| 4319 | } |
| 4320 | EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats); |
| 4321 | |
| 4322 | void qeth_core_get_strings(struct net_device *dev, u32 stringset, u8 *data) |
| 4323 | { |
| 4324 | switch (stringset) { |
| 4325 | case ETH_SS_STATS: |
| 4326 | memcpy(data, &qeth_ethtool_stats_keys, |
| 4327 | sizeof(qeth_ethtool_stats_keys)); |
| 4328 | break; |
| 4329 | default: |
| 4330 | WARN_ON(1); |
| 4331 | break; |
| 4332 | } |
| 4333 | } |
| 4334 | EXPORT_SYMBOL_GPL(qeth_core_get_strings); |
| 4335 | |
| 4336 | void qeth_core_get_drvinfo(struct net_device *dev, |
| 4337 | struct ethtool_drvinfo *info) |
| 4338 | { |
Heiko Carstens | 509e256 | 2008-07-26 02:24:10 -0700 | [diff] [blame] | 4339 | struct qeth_card *card = dev->ml_priv; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4340 | if (card->options.layer2) |
| 4341 | strcpy(info->driver, "qeth_l2"); |
| 4342 | else |
| 4343 | strcpy(info->driver, "qeth_l3"); |
| 4344 | |
| 4345 | strcpy(info->version, "1.0"); |
| 4346 | strcpy(info->fw_version, card->info.mcl_level); |
| 4347 | sprintf(info->bus_info, "%s/%s/%s", |
| 4348 | CARD_RDEV_ID(card), |
| 4349 | CARD_WDEV_ID(card), |
| 4350 | CARD_DDEV_ID(card)); |
| 4351 | } |
| 4352 | EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo); |
| 4353 | |
Frank Blaschka | 3f9975a | 2008-04-24 10:15:23 +0200 | [diff] [blame] | 4354 | int qeth_core_ethtool_get_settings(struct net_device *netdev, |
| 4355 | struct ethtool_cmd *ecmd) |
| 4356 | { |
Heiko Carstens | 509e256 | 2008-07-26 02:24:10 -0700 | [diff] [blame] | 4357 | struct qeth_card *card = netdev->ml_priv; |
Frank Blaschka | 3f9975a | 2008-04-24 10:15:23 +0200 | [diff] [blame] | 4358 | enum qeth_link_types link_type; |
| 4359 | |
| 4360 | if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan)) |
| 4361 | link_type = QETH_LINK_TYPE_10GBIT_ETH; |
| 4362 | else |
| 4363 | link_type = card->info.link_type; |
| 4364 | |
| 4365 | ecmd->transceiver = XCVR_INTERNAL; |
| 4366 | ecmd->supported = SUPPORTED_Autoneg; |
| 4367 | ecmd->advertising = ADVERTISED_Autoneg; |
| 4368 | ecmd->duplex = DUPLEX_FULL; |
| 4369 | ecmd->autoneg = AUTONEG_ENABLE; |
| 4370 | |
| 4371 | switch (link_type) { |
| 4372 | case QETH_LINK_TYPE_FAST_ETH: |
| 4373 | case QETH_LINK_TYPE_LANE_ETH100: |
| 4374 | ecmd->supported |= SUPPORTED_10baseT_Half | |
| 4375 | SUPPORTED_10baseT_Full | |
| 4376 | SUPPORTED_100baseT_Half | |
| 4377 | SUPPORTED_100baseT_Full | |
| 4378 | SUPPORTED_TP; |
| 4379 | ecmd->advertising |= ADVERTISED_10baseT_Half | |
| 4380 | ADVERTISED_10baseT_Full | |
| 4381 | ADVERTISED_100baseT_Half | |
| 4382 | ADVERTISED_100baseT_Full | |
| 4383 | ADVERTISED_TP; |
| 4384 | ecmd->speed = SPEED_100; |
| 4385 | ecmd->port = PORT_TP; |
| 4386 | break; |
| 4387 | |
| 4388 | case QETH_LINK_TYPE_GBIT_ETH: |
| 4389 | case QETH_LINK_TYPE_LANE_ETH1000: |
| 4390 | ecmd->supported |= SUPPORTED_10baseT_Half | |
| 4391 | SUPPORTED_10baseT_Full | |
| 4392 | SUPPORTED_100baseT_Half | |
| 4393 | SUPPORTED_100baseT_Full | |
| 4394 | SUPPORTED_1000baseT_Half | |
| 4395 | SUPPORTED_1000baseT_Full | |
| 4396 | SUPPORTED_FIBRE; |
| 4397 | ecmd->advertising |= ADVERTISED_10baseT_Half | |
| 4398 | ADVERTISED_10baseT_Full | |
| 4399 | ADVERTISED_100baseT_Half | |
| 4400 | ADVERTISED_100baseT_Full | |
| 4401 | ADVERTISED_1000baseT_Half | |
| 4402 | ADVERTISED_1000baseT_Full | |
| 4403 | ADVERTISED_FIBRE; |
| 4404 | ecmd->speed = SPEED_1000; |
| 4405 | ecmd->port = PORT_FIBRE; |
| 4406 | break; |
| 4407 | |
| 4408 | case QETH_LINK_TYPE_10GBIT_ETH: |
| 4409 | ecmd->supported |= SUPPORTED_10baseT_Half | |
| 4410 | SUPPORTED_10baseT_Full | |
| 4411 | SUPPORTED_100baseT_Half | |
| 4412 | SUPPORTED_100baseT_Full | |
| 4413 | SUPPORTED_1000baseT_Half | |
| 4414 | SUPPORTED_1000baseT_Full | |
| 4415 | SUPPORTED_10000baseT_Full | |
| 4416 | SUPPORTED_FIBRE; |
| 4417 | ecmd->advertising |= ADVERTISED_10baseT_Half | |
| 4418 | ADVERTISED_10baseT_Full | |
| 4419 | ADVERTISED_100baseT_Half | |
| 4420 | ADVERTISED_100baseT_Full | |
| 4421 | ADVERTISED_1000baseT_Half | |
| 4422 | ADVERTISED_1000baseT_Full | |
| 4423 | ADVERTISED_10000baseT_Full | |
| 4424 | ADVERTISED_FIBRE; |
| 4425 | ecmd->speed = SPEED_10000; |
| 4426 | ecmd->port = PORT_FIBRE; |
| 4427 | break; |
| 4428 | |
| 4429 | default: |
| 4430 | ecmd->supported |= SUPPORTED_10baseT_Half | |
| 4431 | SUPPORTED_10baseT_Full | |
| 4432 | SUPPORTED_TP; |
| 4433 | ecmd->advertising |= ADVERTISED_10baseT_Half | |
| 4434 | ADVERTISED_10baseT_Full | |
| 4435 | ADVERTISED_TP; |
| 4436 | ecmd->speed = SPEED_10; |
| 4437 | ecmd->port = PORT_TP; |
| 4438 | } |
| 4439 | |
| 4440 | return 0; |
| 4441 | } |
| 4442 | EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_settings); |
| 4443 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4444 | static int __init qeth_core_init(void) |
| 4445 | { |
| 4446 | int rc; |
| 4447 | |
| 4448 | PRINT_INFO("loading core functions\n"); |
| 4449 | INIT_LIST_HEAD(&qeth_core_card_list.list); |
| 4450 | rwlock_init(&qeth_core_card_list.rwlock); |
| 4451 | |
| 4452 | rc = qeth_register_dbf_views(); |
| 4453 | if (rc) |
| 4454 | goto out_err; |
| 4455 | rc = ccw_driver_register(&qeth_ccw_driver); |
| 4456 | if (rc) |
| 4457 | goto ccw_err; |
| 4458 | rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver); |
| 4459 | if (rc) |
| 4460 | goto ccwgroup_err; |
| 4461 | rc = driver_create_file(&qeth_core_ccwgroup_driver.driver, |
| 4462 | &driver_attr_group); |
| 4463 | if (rc) |
| 4464 | goto driver_err; |
| 4465 | qeth_core_root_dev = s390_root_dev_register("qeth"); |
| 4466 | rc = IS_ERR(qeth_core_root_dev) ? PTR_ERR(qeth_core_root_dev) : 0; |
| 4467 | if (rc) |
| 4468 | goto register_err; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4469 | |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame^] | 4470 | qeth_core_header_cache = kmem_cache_create("qeth_hdr", |
| 4471 | sizeof(struct qeth_hdr) + ETH_HLEN, 64, 0, NULL); |
| 4472 | if (!qeth_core_header_cache) { |
| 4473 | rc = -ENOMEM; |
| 4474 | goto slab_err; |
| 4475 | } |
| 4476 | |
| 4477 | return 0; |
| 4478 | slab_err: |
| 4479 | s390_root_dev_unregister(qeth_core_root_dev); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4480 | register_err: |
| 4481 | driver_remove_file(&qeth_core_ccwgroup_driver.driver, |
| 4482 | &driver_attr_group); |
| 4483 | driver_err: |
| 4484 | ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver); |
| 4485 | ccwgroup_err: |
| 4486 | ccw_driver_unregister(&qeth_ccw_driver); |
| 4487 | ccw_err: |
| 4488 | qeth_unregister_dbf_views(); |
| 4489 | out_err: |
| 4490 | PRINT_ERR("Initialization failed with code %d\n", rc); |
| 4491 | return rc; |
| 4492 | } |
| 4493 | |
| 4494 | static void __exit qeth_core_exit(void) |
| 4495 | { |
| 4496 | s390_root_dev_unregister(qeth_core_root_dev); |
| 4497 | driver_remove_file(&qeth_core_ccwgroup_driver.driver, |
| 4498 | &driver_attr_group); |
| 4499 | ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver); |
| 4500 | ccw_driver_unregister(&qeth_ccw_driver); |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame^] | 4501 | kmem_cache_destroy(qeth_core_header_cache); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4502 | qeth_unregister_dbf_views(); |
| 4503 | PRINT_INFO("core functions removed\n"); |
| 4504 | } |
| 4505 | |
| 4506 | module_init(qeth_core_init); |
| 4507 | module_exit(qeth_core_exit); |
| 4508 | MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); |
| 4509 | MODULE_DESCRIPTION("qeth core functions"); |
| 4510 | MODULE_LICENSE("GPL"); |