Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1 | /* |
| 2 | * drivers/s390/net/qeth_core_main.c |
| 3 | * |
Frank Blaschka | bbcfcdc | 2009-06-16 10:30:31 +0200 | [diff] [blame] | 4 | * Copyright IBM Corp. 2007, 2009 |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 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 | |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 11 | #define KMSG_COMPONENT "qeth" |
| 12 | #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt |
| 13 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 14 | #include <linux/module.h> |
| 15 | #include <linux/moduleparam.h> |
| 16 | #include <linux/string.h> |
| 17 | #include <linux/errno.h> |
| 18 | #include <linux/kernel.h> |
| 19 | #include <linux/ip.h> |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 20 | #include <linux/tcp.h> |
| 21 | #include <linux/mii.h> |
| 22 | #include <linux/kthread.h> |
Tejun Heo | 5a0e3ad | 2010-03-24 17:04:11 +0900 | [diff] [blame] | 23 | #include <linux/slab.h> |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 24 | |
Martin Schwidefsky | ab4227c | 2008-08-01 16:39:24 +0200 | [diff] [blame] | 25 | #include <asm/ebcdic.h> |
| 26 | #include <asm/io.h> |
Frank Blaschka | 1da74b1 | 2011-05-12 18:45:02 +0000 | [diff] [blame] | 27 | #include <asm/sysinfo.h> |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 28 | |
| 29 | #include "qeth_core.h" |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 30 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 31 | struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = { |
| 32 | /* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */ |
| 33 | /* N P A M L V H */ |
| 34 | [QETH_DBF_SETUP] = {"qeth_setup", |
| 35 | 8, 1, 8, 5, &debug_hex_ascii_view, NULL}, |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 36 | [QETH_DBF_MSG] = {"qeth_msg", |
| 37 | 8, 1, 128, 3, &debug_sprintf_view, NULL}, |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 38 | [QETH_DBF_CTRL] = {"qeth_control", |
| 39 | 8, 1, QETH_DBF_CTRL_LEN, 5, &debug_hex_ascii_view, NULL}, |
| 40 | }; |
| 41 | EXPORT_SYMBOL_GPL(qeth_dbf); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 42 | |
| 43 | struct qeth_card_list_struct qeth_core_card_list; |
| 44 | EXPORT_SYMBOL_GPL(qeth_core_card_list); |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 45 | struct kmem_cache *qeth_core_header_cache; |
| 46 | EXPORT_SYMBOL_GPL(qeth_core_header_cache); |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 47 | static struct kmem_cache *qeth_qdio_outbuf_cache; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 48 | |
| 49 | static struct device *qeth_core_root_dev; |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 50 | static unsigned int known_devices[][6] = QETH_MODELLIST_ARRAY; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 51 | static struct lock_class_key qdio_out_skb_queue_key; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 52 | |
| 53 | static void qeth_send_control_data_cb(struct qeth_channel *, |
| 54 | struct qeth_cmd_buffer *); |
| 55 | static int qeth_issue_next_read(struct qeth_card *); |
| 56 | static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *); |
| 57 | static void qeth_setup_ccw(struct qeth_channel *, unsigned char *, __u32); |
| 58 | static void qeth_free_buffer_pool(struct qeth_card *); |
| 59 | static int qeth_qdio_establish(struct qeth_card *); |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 60 | static void qeth_free_qdio_buffers(struct qeth_card *); |
| 61 | static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue, |
| 62 | struct qeth_qdio_out_buffer *buf, |
| 63 | enum qeth_qdio_buffer_states newbufstate); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 64 | |
| 65 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 66 | static inline const char *qeth_get_cardname(struct qeth_card *card) |
| 67 | { |
| 68 | if (card->info.guestlan) { |
| 69 | switch (card->info.type) { |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 70 | case QETH_CARD_TYPE_OSD: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 71 | return " Guest LAN QDIO"; |
| 72 | case QETH_CARD_TYPE_IQD: |
| 73 | return " Guest LAN Hiper"; |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 74 | case QETH_CARD_TYPE_OSM: |
| 75 | return " Guest LAN QDIO - OSM"; |
| 76 | case QETH_CARD_TYPE_OSX: |
| 77 | return " Guest LAN QDIO - OSX"; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 78 | default: |
| 79 | return " unknown"; |
| 80 | } |
| 81 | } else { |
| 82 | switch (card->info.type) { |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 83 | case QETH_CARD_TYPE_OSD: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 84 | return " OSD Express"; |
| 85 | case QETH_CARD_TYPE_IQD: |
| 86 | return " HiperSockets"; |
| 87 | case QETH_CARD_TYPE_OSN: |
| 88 | return " OSN QDIO"; |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 89 | case QETH_CARD_TYPE_OSM: |
| 90 | return " OSM QDIO"; |
| 91 | case QETH_CARD_TYPE_OSX: |
| 92 | return " OSX QDIO"; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 93 | default: |
| 94 | return " unknown"; |
| 95 | } |
| 96 | } |
| 97 | return " n/a"; |
| 98 | } |
| 99 | |
| 100 | /* max length to be returned: 14 */ |
| 101 | const char *qeth_get_cardname_short(struct qeth_card *card) |
| 102 | { |
| 103 | if (card->info.guestlan) { |
| 104 | switch (card->info.type) { |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 105 | case QETH_CARD_TYPE_OSD: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 106 | return "GuestLAN QDIO"; |
| 107 | case QETH_CARD_TYPE_IQD: |
| 108 | return "GuestLAN Hiper"; |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 109 | case QETH_CARD_TYPE_OSM: |
| 110 | return "GuestLAN OSM"; |
| 111 | case QETH_CARD_TYPE_OSX: |
| 112 | return "GuestLAN OSX"; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 113 | default: |
| 114 | return "unknown"; |
| 115 | } |
| 116 | } else { |
| 117 | switch (card->info.type) { |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 118 | case QETH_CARD_TYPE_OSD: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 119 | switch (card->info.link_type) { |
| 120 | case QETH_LINK_TYPE_FAST_ETH: |
| 121 | return "OSD_100"; |
| 122 | case QETH_LINK_TYPE_HSTR: |
| 123 | return "HSTR"; |
| 124 | case QETH_LINK_TYPE_GBIT_ETH: |
| 125 | return "OSD_1000"; |
| 126 | case QETH_LINK_TYPE_10GBIT_ETH: |
| 127 | return "OSD_10GIG"; |
| 128 | case QETH_LINK_TYPE_LANE_ETH100: |
| 129 | return "OSD_FE_LANE"; |
| 130 | case QETH_LINK_TYPE_LANE_TR: |
| 131 | return "OSD_TR_LANE"; |
| 132 | case QETH_LINK_TYPE_LANE_ETH1000: |
| 133 | return "OSD_GbE_LANE"; |
| 134 | case QETH_LINK_TYPE_LANE: |
| 135 | return "OSD_ATM_LANE"; |
| 136 | default: |
| 137 | return "OSD_Express"; |
| 138 | } |
| 139 | case QETH_CARD_TYPE_IQD: |
| 140 | return "HiperSockets"; |
| 141 | case QETH_CARD_TYPE_OSN: |
| 142 | return "OSN"; |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 143 | case QETH_CARD_TYPE_OSM: |
| 144 | return "OSM_1000"; |
| 145 | case QETH_CARD_TYPE_OSX: |
| 146 | return "OSX_10GIG"; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 147 | default: |
| 148 | return "unknown"; |
| 149 | } |
| 150 | } |
| 151 | return "n/a"; |
| 152 | } |
| 153 | |
| 154 | void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads, |
| 155 | int clear_start_mask) |
| 156 | { |
| 157 | unsigned long flags; |
| 158 | |
| 159 | spin_lock_irqsave(&card->thread_mask_lock, flags); |
| 160 | card->thread_allowed_mask = threads; |
| 161 | if (clear_start_mask) |
| 162 | card->thread_start_mask &= threads; |
| 163 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| 164 | wake_up(&card->wait_q); |
| 165 | } |
| 166 | EXPORT_SYMBOL_GPL(qeth_set_allowed_threads); |
| 167 | |
| 168 | int qeth_threads_running(struct qeth_card *card, unsigned long threads) |
| 169 | { |
| 170 | unsigned long flags; |
| 171 | int rc = 0; |
| 172 | |
| 173 | spin_lock_irqsave(&card->thread_mask_lock, flags); |
| 174 | rc = (card->thread_running_mask & threads); |
| 175 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| 176 | return rc; |
| 177 | } |
| 178 | EXPORT_SYMBOL_GPL(qeth_threads_running); |
| 179 | |
| 180 | int qeth_wait_for_threads(struct qeth_card *card, unsigned long threads) |
| 181 | { |
| 182 | return wait_event_interruptible(card->wait_q, |
| 183 | qeth_threads_running(card, threads) == 0); |
| 184 | } |
| 185 | EXPORT_SYMBOL_GPL(qeth_wait_for_threads); |
| 186 | |
| 187 | void qeth_clear_working_pool_list(struct qeth_card *card) |
| 188 | { |
| 189 | struct qeth_buffer_pool_entry *pool_entry, *tmp; |
| 190 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 191 | QETH_CARD_TEXT(card, 5, "clwrklst"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 192 | list_for_each_entry_safe(pool_entry, tmp, |
| 193 | &card->qdio.in_buf_pool.entry_list, list){ |
| 194 | list_del(&pool_entry->list); |
| 195 | } |
| 196 | } |
| 197 | EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list); |
| 198 | |
| 199 | static int qeth_alloc_buffer_pool(struct qeth_card *card) |
| 200 | { |
| 201 | struct qeth_buffer_pool_entry *pool_entry; |
| 202 | void *ptr; |
| 203 | int i, j; |
| 204 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 205 | QETH_CARD_TEXT(card, 5, "alocpool"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 206 | for (i = 0; i < card->qdio.init_pool.buf_count; ++i) { |
| 207 | pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL); |
| 208 | if (!pool_entry) { |
| 209 | qeth_free_buffer_pool(card); |
| 210 | return -ENOMEM; |
| 211 | } |
| 212 | for (j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j) { |
Ursula Braun | 508b3c4 | 2008-04-01 10:26:54 +0200 | [diff] [blame] | 213 | ptr = (void *) __get_free_page(GFP_KERNEL); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 214 | if (!ptr) { |
| 215 | while (j > 0) |
| 216 | free_page((unsigned long) |
| 217 | pool_entry->elements[--j]); |
| 218 | kfree(pool_entry); |
| 219 | qeth_free_buffer_pool(card); |
| 220 | return -ENOMEM; |
| 221 | } |
| 222 | pool_entry->elements[j] = ptr; |
| 223 | } |
| 224 | list_add(&pool_entry->init_list, |
| 225 | &card->qdio.init_pool.entry_list); |
| 226 | } |
| 227 | return 0; |
| 228 | } |
| 229 | |
| 230 | int qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt) |
| 231 | { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 232 | QETH_CARD_TEXT(card, 2, "realcbp"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 233 | |
| 234 | if ((card->state != CARD_STATE_DOWN) && |
| 235 | (card->state != CARD_STATE_RECOVER)) |
| 236 | return -EPERM; |
| 237 | |
| 238 | /* TODO: steel/add buffers from/to a running card's buffer pool (?) */ |
| 239 | qeth_clear_working_pool_list(card); |
| 240 | qeth_free_buffer_pool(card); |
| 241 | card->qdio.in_buf_pool.buf_count = bufcnt; |
| 242 | card->qdio.init_pool.buf_count = bufcnt; |
| 243 | return qeth_alloc_buffer_pool(card); |
| 244 | } |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 245 | EXPORT_SYMBOL_GPL(qeth_realloc_buffer_pool); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 246 | |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 247 | static inline int qeth_cq_init(struct qeth_card *card) |
| 248 | { |
| 249 | int rc; |
| 250 | |
| 251 | if (card->options.cq == QETH_CQ_ENABLED) { |
| 252 | QETH_DBF_TEXT(SETUP, 2, "cqinit"); |
| 253 | memset(card->qdio.c_q->qdio_bufs, 0, |
| 254 | QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer)); |
| 255 | card->qdio.c_q->next_buf_to_init = 127; |
| 256 | rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, |
| 257 | card->qdio.no_in_queues - 1, 0, |
| 258 | 127); |
| 259 | if (rc) { |
| 260 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
| 261 | goto out; |
| 262 | } |
| 263 | } |
| 264 | rc = 0; |
| 265 | out: |
| 266 | return rc; |
| 267 | } |
| 268 | |
| 269 | static inline int qeth_alloc_cq(struct qeth_card *card) |
| 270 | { |
| 271 | int rc; |
| 272 | |
| 273 | if (card->options.cq == QETH_CQ_ENABLED) { |
| 274 | int i; |
| 275 | struct qdio_outbuf_state *outbuf_states; |
| 276 | |
| 277 | QETH_DBF_TEXT(SETUP, 2, "cqon"); |
| 278 | card->qdio.c_q = kzalloc(sizeof(struct qeth_qdio_q), |
| 279 | GFP_KERNEL); |
| 280 | if (!card->qdio.c_q) { |
| 281 | rc = -1; |
| 282 | goto kmsg_out; |
| 283 | } |
| 284 | QETH_DBF_HEX(SETUP, 2, &card->qdio.c_q, sizeof(void *)); |
| 285 | |
| 286 | for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) { |
| 287 | card->qdio.c_q->bufs[i].buffer = |
| 288 | &card->qdio.c_q->qdio_bufs[i]; |
| 289 | } |
| 290 | |
| 291 | card->qdio.no_in_queues = 2; |
| 292 | |
| 293 | card->qdio.out_bufstates = (struct qdio_outbuf_state *) |
| 294 | kzalloc(card->qdio.no_out_queues * |
| 295 | QDIO_MAX_BUFFERS_PER_Q * |
| 296 | sizeof(struct qdio_outbuf_state), GFP_KERNEL); |
| 297 | outbuf_states = card->qdio.out_bufstates; |
| 298 | if (outbuf_states == NULL) { |
| 299 | rc = -1; |
| 300 | goto free_cq_out; |
| 301 | } |
| 302 | for (i = 0; i < card->qdio.no_out_queues; ++i) { |
| 303 | card->qdio.out_qs[i]->bufstates = outbuf_states; |
| 304 | outbuf_states += QDIO_MAX_BUFFERS_PER_Q; |
| 305 | } |
| 306 | } else { |
| 307 | QETH_DBF_TEXT(SETUP, 2, "nocq"); |
| 308 | card->qdio.c_q = NULL; |
| 309 | card->qdio.no_in_queues = 1; |
| 310 | } |
| 311 | QETH_DBF_TEXT_(SETUP, 2, "iqc%d", card->qdio.no_in_queues); |
| 312 | rc = 0; |
| 313 | out: |
| 314 | return rc; |
| 315 | free_cq_out: |
| 316 | kfree(card->qdio.c_q); |
| 317 | card->qdio.c_q = NULL; |
| 318 | kmsg_out: |
| 319 | dev_err(&card->gdev->dev, "Failed to create completion queue\n"); |
| 320 | goto out; |
| 321 | } |
| 322 | |
| 323 | static inline void qeth_free_cq(struct qeth_card *card) |
| 324 | { |
| 325 | if (card->qdio.c_q) { |
| 326 | --card->qdio.no_in_queues; |
| 327 | kfree(card->qdio.c_q); |
| 328 | card->qdio.c_q = NULL; |
| 329 | } |
| 330 | kfree(card->qdio.out_bufstates); |
| 331 | card->qdio.out_bufstates = NULL; |
| 332 | } |
| 333 | |
| 334 | static inline void qeth_cleanup_handled_pending(struct qeth_qdio_out_q *q, |
| 335 | int bidx, int forced_cleanup) |
| 336 | { |
| 337 | if (q->bufs[bidx]->next_pending != NULL) { |
| 338 | struct qeth_qdio_out_buffer *head = q->bufs[bidx]; |
| 339 | struct qeth_qdio_out_buffer *c = q->bufs[bidx]->next_pending; |
| 340 | |
| 341 | while (c) { |
| 342 | if (forced_cleanup || |
| 343 | atomic_read(&c->state) == |
| 344 | QETH_QDIO_BUF_HANDLED_DELAYED) { |
| 345 | struct qeth_qdio_out_buffer *f = c; |
| 346 | QETH_CARD_TEXT(f->q->card, 5, "fp"); |
| 347 | QETH_CARD_TEXT_(f->q->card, 5, "%lx", (long) f); |
| 348 | c = f->next_pending; |
| 349 | BUG_ON(head->next_pending != f); |
| 350 | head->next_pending = c; |
| 351 | kmem_cache_free(qeth_qdio_outbuf_cache, f); |
| 352 | } else { |
| 353 | head = c; |
| 354 | c = c->next_pending; |
| 355 | } |
| 356 | |
| 357 | } |
| 358 | } |
| 359 | } |
| 360 | |
| 361 | |
| 362 | static inline void qeth_qdio_handle_aob(struct qeth_card *card, |
| 363 | unsigned long phys_aob_addr) { |
| 364 | struct qaob *aob; |
| 365 | struct qeth_qdio_out_buffer *buffer; |
| 366 | |
| 367 | aob = (struct qaob *) phys_to_virt(phys_aob_addr); |
| 368 | QETH_CARD_TEXT(card, 5, "haob"); |
| 369 | QETH_CARD_TEXT_(card, 5, "%lx", phys_aob_addr); |
| 370 | buffer = (struct qeth_qdio_out_buffer *) aob->user1; |
| 371 | QETH_CARD_TEXT_(card, 5, "%lx", aob->user1); |
| 372 | |
| 373 | BUG_ON(buffer == NULL); |
| 374 | |
| 375 | buffer->aob = NULL; |
| 376 | qeth_clear_output_buffer(buffer->q, buffer, |
| 377 | QETH_QDIO_BUF_HANDLED_DELAYED); |
| 378 | /* from here on: do not touch buffer anymore */ |
| 379 | qdio_release_aob(aob); |
| 380 | } |
| 381 | |
| 382 | static inline int qeth_is_cq(struct qeth_card *card, unsigned int queue) |
| 383 | { |
| 384 | return card->options.cq == QETH_CQ_ENABLED && |
| 385 | card->qdio.c_q != NULL && |
| 386 | queue != 0 && |
| 387 | queue == card->qdio.no_in_queues - 1; |
| 388 | } |
| 389 | |
| 390 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 391 | static int qeth_issue_next_read(struct qeth_card *card) |
| 392 | { |
| 393 | int rc; |
| 394 | struct qeth_cmd_buffer *iob; |
| 395 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 396 | QETH_CARD_TEXT(card, 5, "issnxrd"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 397 | if (card->read.state != CH_STATE_UP) |
| 398 | return -EIO; |
| 399 | iob = qeth_get_buffer(&card->read); |
| 400 | if (!iob) { |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 401 | dev_warn(&card->gdev->dev, "The qeth device driver " |
| 402 | "failed to recover an error on the device\n"); |
| 403 | QETH_DBF_MESSAGE(2, "%s issue_next_read failed: no iob " |
| 404 | "available\n", dev_name(&card->gdev->dev)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 405 | return -ENOMEM; |
| 406 | } |
| 407 | qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 408 | QETH_CARD_TEXT(card, 6, "noirqpnd"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 409 | rc = ccw_device_start(card->read.ccwdev, &card->read.ccw, |
| 410 | (addr_t) iob, 0, 0); |
| 411 | if (rc) { |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 412 | QETH_DBF_MESSAGE(2, "%s error in starting next read ccw! " |
| 413 | "rc=%i\n", dev_name(&card->gdev->dev), rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 414 | atomic_set(&card->read.irq_pending, 0); |
Ursula Braun | 908abbb | 2010-07-22 23:15:06 +0000 | [diff] [blame] | 415 | card->read_or_write_problem = 1; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 416 | qeth_schedule_recovery(card); |
| 417 | wake_up(&card->wait_q); |
| 418 | } |
| 419 | return rc; |
| 420 | } |
| 421 | |
| 422 | static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card) |
| 423 | { |
| 424 | struct qeth_reply *reply; |
| 425 | |
| 426 | reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC); |
| 427 | if (reply) { |
| 428 | atomic_set(&reply->refcnt, 1); |
| 429 | atomic_set(&reply->received, 0); |
| 430 | reply->card = card; |
| 431 | }; |
| 432 | return reply; |
| 433 | } |
| 434 | |
| 435 | static void qeth_get_reply(struct qeth_reply *reply) |
| 436 | { |
| 437 | WARN_ON(atomic_read(&reply->refcnt) <= 0); |
| 438 | atomic_inc(&reply->refcnt); |
| 439 | } |
| 440 | |
| 441 | static void qeth_put_reply(struct qeth_reply *reply) |
| 442 | { |
| 443 | WARN_ON(atomic_read(&reply->refcnt) <= 0); |
| 444 | if (atomic_dec_and_test(&reply->refcnt)) |
| 445 | kfree(reply); |
| 446 | } |
| 447 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 448 | 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] | 449 | struct qeth_card *card) |
| 450 | { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 451 | char *ipa_name; |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 452 | int com = cmd->hdr.command; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 453 | ipa_name = qeth_get_ipa_cmd_name(com); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 454 | if (rc) |
Ursula Braun | 70919e2 | 2011-02-26 22:41:36 -0800 | [diff] [blame] | 455 | QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s/%s returned " |
| 456 | "x%X \"%s\"\n", |
| 457 | ipa_name, com, dev_name(&card->gdev->dev), |
| 458 | QETH_CARD_IFNAME(card), rc, |
| 459 | qeth_get_ipa_msg(rc)); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 460 | else |
Ursula Braun | 70919e2 | 2011-02-26 22:41:36 -0800 | [diff] [blame] | 461 | QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s/%s succeeded\n", |
| 462 | ipa_name, com, dev_name(&card->gdev->dev), |
| 463 | QETH_CARD_IFNAME(card)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 464 | } |
| 465 | |
| 466 | static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card, |
| 467 | struct qeth_cmd_buffer *iob) |
| 468 | { |
| 469 | struct qeth_ipa_cmd *cmd = NULL; |
| 470 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 471 | QETH_CARD_TEXT(card, 5, "chkipad"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 472 | if (IS_IPA(iob->data)) { |
| 473 | cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data); |
| 474 | if (IS_IPA_REPLY(cmd)) { |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 475 | if (cmd->hdr.command != IPA_CMD_SETCCID && |
| 476 | cmd->hdr.command != IPA_CMD_DELCCID && |
| 477 | cmd->hdr.command != IPA_CMD_MODCCID && |
| 478 | cmd->hdr.command != IPA_CMD_SET_DIAG_ASS) |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 479 | qeth_issue_ipa_msg(cmd, |
| 480 | cmd->hdr.return_code, card); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 481 | return cmd; |
| 482 | } else { |
| 483 | switch (cmd->hdr.command) { |
| 484 | case IPA_CMD_STOPLAN: |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 485 | dev_warn(&card->gdev->dev, |
| 486 | "The link for interface %s on CHPID" |
| 487 | " 0x%X failed\n", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 488 | QETH_CARD_IFNAME(card), |
| 489 | card->info.chpid); |
| 490 | card->lan_online = 0; |
| 491 | if (card->dev && netif_carrier_ok(card->dev)) |
| 492 | netif_carrier_off(card->dev); |
| 493 | return NULL; |
| 494 | case IPA_CMD_STARTLAN: |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 495 | dev_info(&card->gdev->dev, |
| 496 | "The link for %s on CHPID 0x%X has" |
| 497 | " been restored\n", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 498 | QETH_CARD_IFNAME(card), |
| 499 | card->info.chpid); |
| 500 | netif_carrier_on(card->dev); |
Ursula Braun | 922dc06 | 2008-04-01 10:26:55 +0200 | [diff] [blame] | 501 | card->lan_online = 1; |
Frank Blaschka | 1da74b1 | 2011-05-12 18:45:02 +0000 | [diff] [blame] | 502 | if (card->info.hwtrap) |
| 503 | card->info.hwtrap = 2; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 504 | qeth_schedule_recovery(card); |
| 505 | return NULL; |
| 506 | case IPA_CMD_MODCCID: |
| 507 | return cmd; |
| 508 | case IPA_CMD_REGISTER_LOCAL_ADDR: |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 509 | QETH_CARD_TEXT(card, 3, "irla"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 510 | break; |
| 511 | case IPA_CMD_UNREGISTER_LOCAL_ADDR: |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 512 | QETH_CARD_TEXT(card, 3, "urla"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 513 | break; |
| 514 | default: |
Frank Blaschka | c4cef07 | 2008-07-14 09:59:31 +0200 | [diff] [blame] | 515 | QETH_DBF_MESSAGE(2, "Received data is IPA " |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 516 | "but not a reply!\n"); |
| 517 | break; |
| 518 | } |
| 519 | } |
| 520 | } |
| 521 | return cmd; |
| 522 | } |
| 523 | |
| 524 | void qeth_clear_ipacmd_list(struct qeth_card *card) |
| 525 | { |
| 526 | struct qeth_reply *reply, *r; |
| 527 | unsigned long flags; |
| 528 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 529 | QETH_CARD_TEXT(card, 4, "clipalst"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 530 | |
| 531 | spin_lock_irqsave(&card->lock, flags); |
| 532 | list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) { |
| 533 | qeth_get_reply(reply); |
| 534 | reply->rc = -EIO; |
| 535 | atomic_inc(&reply->received); |
| 536 | list_del_init(&reply->list); |
| 537 | wake_up(&reply->wait_q); |
| 538 | qeth_put_reply(reply); |
| 539 | } |
| 540 | spin_unlock_irqrestore(&card->lock, flags); |
Ursula Braun | 908abbb | 2010-07-22 23:15:06 +0000 | [diff] [blame] | 541 | atomic_set(&card->write.irq_pending, 0); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 542 | } |
| 543 | EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list); |
| 544 | |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 545 | static int qeth_check_idx_response(struct qeth_card *card, |
| 546 | unsigned char *buffer) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 547 | { |
| 548 | if (!buffer) |
| 549 | return 0; |
| 550 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 551 | QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 552 | if ((buffer[2] & 0xc0) == 0xc0) { |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 553 | QETH_DBF_MESSAGE(2, "received an IDX TERMINATE " |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 554 | "with cause code 0x%02x%s\n", |
| 555 | buffer[4], |
| 556 | ((buffer[4] == 0x22) ? |
| 557 | " -- try another portname" : "")); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 558 | QETH_CARD_TEXT(card, 2, "ckidxres"); |
| 559 | QETH_CARD_TEXT(card, 2, " idxterm"); |
| 560 | QETH_CARD_TEXT_(card, 2, " rc%d", -EIO); |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 561 | if (buffer[4] == 0xf6) { |
| 562 | dev_err(&card->gdev->dev, |
| 563 | "The qeth device is not configured " |
| 564 | "for the OSI layer required by z/VM\n"); |
| 565 | return -EPERM; |
| 566 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 567 | return -EIO; |
| 568 | } |
| 569 | return 0; |
| 570 | } |
| 571 | |
| 572 | static void qeth_setup_ccw(struct qeth_channel *channel, unsigned char *iob, |
| 573 | __u32 len) |
| 574 | { |
| 575 | struct qeth_card *card; |
| 576 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 577 | card = CARD_FROM_CDEV(channel->ccwdev); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 578 | QETH_CARD_TEXT(card, 4, "setupccw"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 579 | if (channel == &card->read) |
| 580 | memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1)); |
| 581 | else |
| 582 | memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1)); |
| 583 | channel->ccw.count = len; |
| 584 | channel->ccw.cda = (__u32) __pa(iob); |
| 585 | } |
| 586 | |
| 587 | static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel) |
| 588 | { |
| 589 | __u8 index; |
| 590 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 591 | QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "getbuff"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 592 | index = channel->io_buf_no; |
| 593 | do { |
| 594 | if (channel->iob[index].state == BUF_STATE_FREE) { |
| 595 | channel->iob[index].state = BUF_STATE_LOCKED; |
| 596 | channel->io_buf_no = (channel->io_buf_no + 1) % |
| 597 | QETH_CMD_BUFFER_NO; |
| 598 | memset(channel->iob[index].data, 0, QETH_BUFSIZE); |
| 599 | return channel->iob + index; |
| 600 | } |
| 601 | index = (index + 1) % QETH_CMD_BUFFER_NO; |
| 602 | } while (index != channel->io_buf_no); |
| 603 | |
| 604 | return NULL; |
| 605 | } |
| 606 | |
| 607 | void qeth_release_buffer(struct qeth_channel *channel, |
| 608 | struct qeth_cmd_buffer *iob) |
| 609 | { |
| 610 | unsigned long flags; |
| 611 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 612 | QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "relbuff"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 613 | spin_lock_irqsave(&channel->iob_lock, flags); |
| 614 | memset(iob->data, 0, QETH_BUFSIZE); |
| 615 | iob->state = BUF_STATE_FREE; |
| 616 | iob->callback = qeth_send_control_data_cb; |
| 617 | iob->rc = 0; |
| 618 | spin_unlock_irqrestore(&channel->iob_lock, flags); |
| 619 | } |
| 620 | EXPORT_SYMBOL_GPL(qeth_release_buffer); |
| 621 | |
| 622 | static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel) |
| 623 | { |
| 624 | struct qeth_cmd_buffer *buffer = NULL; |
| 625 | unsigned long flags; |
| 626 | |
| 627 | spin_lock_irqsave(&channel->iob_lock, flags); |
| 628 | buffer = __qeth_get_buffer(channel); |
| 629 | spin_unlock_irqrestore(&channel->iob_lock, flags); |
| 630 | return buffer; |
| 631 | } |
| 632 | |
| 633 | struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *channel) |
| 634 | { |
| 635 | struct qeth_cmd_buffer *buffer; |
| 636 | wait_event(channel->wait_q, |
| 637 | ((buffer = qeth_get_buffer(channel)) != NULL)); |
| 638 | return buffer; |
| 639 | } |
| 640 | EXPORT_SYMBOL_GPL(qeth_wait_for_buffer); |
| 641 | |
| 642 | void qeth_clear_cmd_buffers(struct qeth_channel *channel) |
| 643 | { |
| 644 | int cnt; |
| 645 | |
| 646 | for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) |
| 647 | qeth_release_buffer(channel, &channel->iob[cnt]); |
| 648 | channel->buf_no = 0; |
| 649 | channel->io_buf_no = 0; |
| 650 | } |
| 651 | EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers); |
| 652 | |
| 653 | static void qeth_send_control_data_cb(struct qeth_channel *channel, |
| 654 | struct qeth_cmd_buffer *iob) |
| 655 | { |
| 656 | struct qeth_card *card; |
| 657 | struct qeth_reply *reply, *r; |
| 658 | struct qeth_ipa_cmd *cmd; |
| 659 | unsigned long flags; |
| 660 | int keep_reply; |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 661 | int rc = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 662 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 663 | card = CARD_FROM_CDEV(channel->ccwdev); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 664 | QETH_CARD_TEXT(card, 4, "sndctlcb"); |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 665 | rc = qeth_check_idx_response(card, iob->data); |
| 666 | switch (rc) { |
| 667 | case 0: |
| 668 | break; |
| 669 | case -EIO: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 670 | qeth_clear_ipacmd_list(card); |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 671 | qeth_schedule_recovery(card); |
Ursula Braun | 01fc3e8 | 2010-06-21 22:57:12 +0000 | [diff] [blame] | 672 | /* fall through */ |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 673 | default: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 674 | goto out; |
| 675 | } |
| 676 | |
| 677 | cmd = qeth_check_ipa_data(card, iob); |
| 678 | if ((cmd == NULL) && (card->state != CARD_STATE_DOWN)) |
| 679 | goto out; |
| 680 | /*in case of OSN : check if cmd is set */ |
| 681 | if (card->info.type == QETH_CARD_TYPE_OSN && |
| 682 | cmd && |
| 683 | cmd->hdr.command != IPA_CMD_STARTLAN && |
| 684 | card->osn_info.assist_cb != NULL) { |
| 685 | card->osn_info.assist_cb(card->dev, cmd); |
| 686 | goto out; |
| 687 | } |
| 688 | |
| 689 | spin_lock_irqsave(&card->lock, flags); |
| 690 | list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) { |
| 691 | if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) || |
| 692 | ((cmd) && (reply->seqno == cmd->hdr.seqno))) { |
| 693 | qeth_get_reply(reply); |
| 694 | list_del_init(&reply->list); |
| 695 | spin_unlock_irqrestore(&card->lock, flags); |
| 696 | keep_reply = 0; |
| 697 | if (reply->callback != NULL) { |
| 698 | if (cmd) { |
| 699 | reply->offset = (__u16)((char *)cmd - |
| 700 | (char *)iob->data); |
| 701 | keep_reply = reply->callback(card, |
| 702 | reply, |
| 703 | (unsigned long)cmd); |
| 704 | } else |
| 705 | keep_reply = reply->callback(card, |
| 706 | reply, |
| 707 | (unsigned long)iob); |
| 708 | } |
| 709 | if (cmd) |
| 710 | reply->rc = (u16) cmd->hdr.return_code; |
| 711 | else if (iob->rc) |
| 712 | reply->rc = iob->rc; |
| 713 | if (keep_reply) { |
| 714 | spin_lock_irqsave(&card->lock, flags); |
| 715 | list_add_tail(&reply->list, |
| 716 | &card->cmd_waiter_list); |
| 717 | spin_unlock_irqrestore(&card->lock, flags); |
| 718 | } else { |
| 719 | atomic_inc(&reply->received); |
| 720 | wake_up(&reply->wait_q); |
| 721 | } |
| 722 | qeth_put_reply(reply); |
| 723 | goto out; |
| 724 | } |
| 725 | } |
| 726 | spin_unlock_irqrestore(&card->lock, flags); |
| 727 | out: |
| 728 | memcpy(&card->seqno.pdu_hdr_ack, |
| 729 | QETH_PDU_HEADER_SEQ_NO(iob->data), |
| 730 | QETH_SEQ_NO_LENGTH); |
| 731 | qeth_release_buffer(channel, iob); |
| 732 | } |
| 733 | |
| 734 | static int qeth_setup_channel(struct qeth_channel *channel) |
| 735 | { |
| 736 | int cnt; |
| 737 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 738 | QETH_DBF_TEXT(SETUP, 2, "setupch"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 739 | for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) { |
Julia Lawall | ae57b20 | 2010-05-16 21:15:13 +0000 | [diff] [blame] | 740 | channel->iob[cnt].data = |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 741 | kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL); |
| 742 | if (channel->iob[cnt].data == NULL) |
| 743 | break; |
| 744 | channel->iob[cnt].state = BUF_STATE_FREE; |
| 745 | channel->iob[cnt].channel = channel; |
| 746 | channel->iob[cnt].callback = qeth_send_control_data_cb; |
| 747 | channel->iob[cnt].rc = 0; |
| 748 | } |
| 749 | if (cnt < QETH_CMD_BUFFER_NO) { |
| 750 | while (cnt-- > 0) |
| 751 | kfree(channel->iob[cnt].data); |
| 752 | return -ENOMEM; |
| 753 | } |
| 754 | channel->buf_no = 0; |
| 755 | channel->io_buf_no = 0; |
| 756 | atomic_set(&channel->irq_pending, 0); |
| 757 | spin_lock_init(&channel->iob_lock); |
| 758 | |
| 759 | init_waitqueue_head(&channel->wait_q); |
| 760 | return 0; |
| 761 | } |
| 762 | |
| 763 | static int qeth_set_thread_start_bit(struct qeth_card *card, |
| 764 | unsigned long thread) |
| 765 | { |
| 766 | unsigned long flags; |
| 767 | |
| 768 | spin_lock_irqsave(&card->thread_mask_lock, flags); |
| 769 | if (!(card->thread_allowed_mask & thread) || |
| 770 | (card->thread_start_mask & thread)) { |
| 771 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| 772 | return -EPERM; |
| 773 | } |
| 774 | card->thread_start_mask |= thread; |
| 775 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| 776 | return 0; |
| 777 | } |
| 778 | |
| 779 | void qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread) |
| 780 | { |
| 781 | unsigned long flags; |
| 782 | |
| 783 | spin_lock_irqsave(&card->thread_mask_lock, flags); |
| 784 | card->thread_start_mask &= ~thread; |
| 785 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| 786 | wake_up(&card->wait_q); |
| 787 | } |
| 788 | EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit); |
| 789 | |
| 790 | void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread) |
| 791 | { |
| 792 | unsigned long flags; |
| 793 | |
| 794 | spin_lock_irqsave(&card->thread_mask_lock, flags); |
| 795 | card->thread_running_mask &= ~thread; |
| 796 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| 797 | wake_up(&card->wait_q); |
| 798 | } |
| 799 | EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit); |
| 800 | |
| 801 | static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread) |
| 802 | { |
| 803 | unsigned long flags; |
| 804 | int rc = 0; |
| 805 | |
| 806 | spin_lock_irqsave(&card->thread_mask_lock, flags); |
| 807 | if (card->thread_start_mask & thread) { |
| 808 | if ((card->thread_allowed_mask & thread) && |
| 809 | !(card->thread_running_mask & thread)) { |
| 810 | rc = 1; |
| 811 | card->thread_start_mask &= ~thread; |
| 812 | card->thread_running_mask |= thread; |
| 813 | } else |
| 814 | rc = -EPERM; |
| 815 | } |
| 816 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| 817 | return rc; |
| 818 | } |
| 819 | |
| 820 | int qeth_do_run_thread(struct qeth_card *card, unsigned long thread) |
| 821 | { |
| 822 | int rc = 0; |
| 823 | |
| 824 | wait_event(card->wait_q, |
| 825 | (rc = __qeth_do_run_thread(card, thread)) >= 0); |
| 826 | return rc; |
| 827 | } |
| 828 | EXPORT_SYMBOL_GPL(qeth_do_run_thread); |
| 829 | |
| 830 | void qeth_schedule_recovery(struct qeth_card *card) |
| 831 | { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 832 | QETH_CARD_TEXT(card, 2, "startrec"); |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 833 | WARN_ON(1); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 834 | if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0) |
| 835 | schedule_work(&card->kernel_thread_starter); |
| 836 | } |
| 837 | EXPORT_SYMBOL_GPL(qeth_schedule_recovery); |
| 838 | |
| 839 | static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb) |
| 840 | { |
| 841 | int dstat, cstat; |
| 842 | char *sense; |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 843 | struct qeth_card *card; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 844 | |
| 845 | sense = (char *) irb->ecw; |
Peter Oberparleiter | 23d805b | 2008-07-14 09:58:50 +0200 | [diff] [blame] | 846 | cstat = irb->scsw.cmd.cstat; |
| 847 | dstat = irb->scsw.cmd.dstat; |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 848 | card = CARD_FROM_CDEV(cdev); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 849 | |
| 850 | if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK | |
| 851 | SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK | |
| 852 | SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 853 | QETH_CARD_TEXT(card, 2, "CGENCHK"); |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 854 | dev_warn(&cdev->dev, "The qeth device driver " |
| 855 | "failed to recover an error on the device\n"); |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 856 | QETH_DBF_MESSAGE(2, "%s check on device dstat=x%x, cstat=x%x\n", |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 857 | dev_name(&cdev->dev), dstat, cstat); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 858 | print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET, |
| 859 | 16, 1, irb, 64, 1); |
| 860 | return 1; |
| 861 | } |
| 862 | |
| 863 | if (dstat & DEV_STAT_UNIT_CHECK) { |
| 864 | if (sense[SENSE_RESETTING_EVENT_BYTE] & |
| 865 | SENSE_RESETTING_EVENT_FLAG) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 866 | QETH_CARD_TEXT(card, 2, "REVIND"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 867 | return 1; |
| 868 | } |
| 869 | if (sense[SENSE_COMMAND_REJECT_BYTE] & |
| 870 | SENSE_COMMAND_REJECT_FLAG) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 871 | QETH_CARD_TEXT(card, 2, "CMDREJi"); |
Ursula Braun | 28a7e4c | 2008-09-19 12:56:03 +0200 | [diff] [blame] | 872 | return 1; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 873 | } |
| 874 | if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 875 | QETH_CARD_TEXT(card, 2, "AFFE"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 876 | return 1; |
| 877 | } |
| 878 | if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 879 | QETH_CARD_TEXT(card, 2, "ZEROSEN"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 880 | return 0; |
| 881 | } |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 882 | QETH_CARD_TEXT(card, 2, "DGENCHK"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 883 | return 1; |
| 884 | } |
| 885 | return 0; |
| 886 | } |
| 887 | |
| 888 | static long __qeth_check_irb_error(struct ccw_device *cdev, |
| 889 | unsigned long intparm, struct irb *irb) |
| 890 | { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 891 | struct qeth_card *card; |
| 892 | |
| 893 | card = CARD_FROM_CDEV(cdev); |
| 894 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 895 | if (!IS_ERR(irb)) |
| 896 | return 0; |
| 897 | |
| 898 | switch (PTR_ERR(irb)) { |
| 899 | case -EIO: |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 900 | QETH_DBF_MESSAGE(2, "%s i/o-error on device\n", |
| 901 | dev_name(&cdev->dev)); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 902 | QETH_CARD_TEXT(card, 2, "ckirberr"); |
| 903 | QETH_CARD_TEXT_(card, 2, " rc%d", -EIO); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 904 | break; |
| 905 | case -ETIMEDOUT: |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 906 | dev_warn(&cdev->dev, "A hardware operation timed out" |
| 907 | " on the device\n"); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 908 | QETH_CARD_TEXT(card, 2, "ckirberr"); |
| 909 | QETH_CARD_TEXT_(card, 2, " rc%d", -ETIMEDOUT); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 910 | if (intparm == QETH_RCD_PARM) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 911 | if (card && (card->data.ccwdev == cdev)) { |
| 912 | card->data.state = CH_STATE_DOWN; |
| 913 | wake_up(&card->wait_q); |
| 914 | } |
| 915 | } |
| 916 | break; |
| 917 | default: |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 918 | QETH_DBF_MESSAGE(2, "%s unknown error %ld on device\n", |
| 919 | dev_name(&cdev->dev), PTR_ERR(irb)); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 920 | QETH_CARD_TEXT(card, 2, "ckirberr"); |
| 921 | QETH_CARD_TEXT(card, 2, " rc???"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 922 | } |
| 923 | return PTR_ERR(irb); |
| 924 | } |
| 925 | |
| 926 | static void qeth_irq(struct ccw_device *cdev, unsigned long intparm, |
| 927 | struct irb *irb) |
| 928 | { |
| 929 | int rc; |
| 930 | int cstat, dstat; |
| 931 | struct qeth_cmd_buffer *buffer; |
| 932 | struct qeth_channel *channel; |
| 933 | struct qeth_card *card; |
| 934 | struct qeth_cmd_buffer *iob; |
| 935 | __u8 index; |
| 936 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 937 | if (__qeth_check_irb_error(cdev, intparm, irb)) |
| 938 | return; |
Peter Oberparleiter | 23d805b | 2008-07-14 09:58:50 +0200 | [diff] [blame] | 939 | cstat = irb->scsw.cmd.cstat; |
| 940 | dstat = irb->scsw.cmd.dstat; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 941 | |
| 942 | card = CARD_FROM_CDEV(cdev); |
| 943 | if (!card) |
| 944 | return; |
| 945 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 946 | QETH_CARD_TEXT(card, 5, "irq"); |
| 947 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 948 | if (card->read.ccwdev == cdev) { |
| 949 | channel = &card->read; |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 950 | QETH_CARD_TEXT(card, 5, "read"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 951 | } else if (card->write.ccwdev == cdev) { |
| 952 | channel = &card->write; |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 953 | QETH_CARD_TEXT(card, 5, "write"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 954 | } else { |
| 955 | channel = &card->data; |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 956 | QETH_CARD_TEXT(card, 5, "data"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 957 | } |
| 958 | atomic_set(&channel->irq_pending, 0); |
| 959 | |
Peter Oberparleiter | 23d805b | 2008-07-14 09:58:50 +0200 | [diff] [blame] | 960 | if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC)) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 961 | channel->state = CH_STATE_STOPPED; |
| 962 | |
Peter Oberparleiter | 23d805b | 2008-07-14 09:58:50 +0200 | [diff] [blame] | 963 | if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC)) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 964 | channel->state = CH_STATE_HALTED; |
| 965 | |
| 966 | /*let's wake up immediately on data channel*/ |
| 967 | if ((channel == &card->data) && (intparm != 0) && |
| 968 | (intparm != QETH_RCD_PARM)) |
| 969 | goto out; |
| 970 | |
| 971 | if (intparm == QETH_CLEAR_CHANNEL_PARM) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 972 | QETH_CARD_TEXT(card, 6, "clrchpar"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 973 | /* we don't have to handle this further */ |
| 974 | intparm = 0; |
| 975 | } |
| 976 | if (intparm == QETH_HALT_CHANNEL_PARM) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 977 | QETH_CARD_TEXT(card, 6, "hltchpar"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 978 | /* we don't have to handle this further */ |
| 979 | intparm = 0; |
| 980 | } |
| 981 | if ((dstat & DEV_STAT_UNIT_EXCEP) || |
| 982 | (dstat & DEV_STAT_UNIT_CHECK) || |
| 983 | (cstat)) { |
| 984 | if (irb->esw.esw0.erw.cons) { |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 985 | dev_warn(&channel->ccwdev->dev, |
| 986 | "The qeth device driver failed to recover " |
| 987 | "an error on the device\n"); |
| 988 | QETH_DBF_MESSAGE(2, "%s sense data available. cstat " |
| 989 | "0x%X dstat 0x%X\n", |
| 990 | dev_name(&channel->ccwdev->dev), cstat, dstat); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 991 | print_hex_dump(KERN_WARNING, "qeth: irb ", |
| 992 | DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1); |
| 993 | print_hex_dump(KERN_WARNING, "qeth: sense data ", |
| 994 | DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1); |
| 995 | } |
| 996 | if (intparm == QETH_RCD_PARM) { |
| 997 | channel->state = CH_STATE_DOWN; |
| 998 | goto out; |
| 999 | } |
| 1000 | rc = qeth_get_problem(cdev, irb); |
| 1001 | if (rc) { |
Ursula Braun | 28a7e4c | 2008-09-19 12:56:03 +0200 | [diff] [blame] | 1002 | qeth_clear_ipacmd_list(card); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1003 | qeth_schedule_recovery(card); |
| 1004 | goto out; |
| 1005 | } |
| 1006 | } |
| 1007 | |
| 1008 | if (intparm == QETH_RCD_PARM) { |
| 1009 | channel->state = CH_STATE_RCD_DONE; |
| 1010 | goto out; |
| 1011 | } |
| 1012 | if (intparm) { |
| 1013 | buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm); |
| 1014 | buffer->state = BUF_STATE_PROCESSED; |
| 1015 | } |
| 1016 | if (channel == &card->data) |
| 1017 | return; |
| 1018 | if (channel == &card->read && |
| 1019 | channel->state == CH_STATE_UP) |
| 1020 | qeth_issue_next_read(card); |
| 1021 | |
| 1022 | iob = channel->iob; |
| 1023 | index = channel->buf_no; |
| 1024 | while (iob[index].state == BUF_STATE_PROCESSED) { |
| 1025 | if (iob[index].callback != NULL) |
| 1026 | iob[index].callback(channel, iob + index); |
| 1027 | |
| 1028 | index = (index + 1) % QETH_CMD_BUFFER_NO; |
| 1029 | } |
| 1030 | channel->buf_no = index; |
| 1031 | out: |
| 1032 | wake_up(&card->wait_q); |
| 1033 | return; |
| 1034 | } |
| 1035 | |
Ursula Braun | b67d801 | 2010-11-08 03:03:48 +0000 | [diff] [blame] | 1036 | static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue, |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 1037 | struct qeth_qdio_out_buffer *buf, |
| 1038 | enum qeth_qdio_buffer_states newbufstate) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1039 | { |
| 1040 | int i; |
| 1041 | struct sk_buff *skb; |
| 1042 | |
| 1043 | /* is PCI flag set on buffer? */ |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 1044 | if (buf->buffer->element[0].sflags & SBAL_SFLAGS0_PCI_REQ) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1045 | atomic_dec(&queue->set_pci_flags_count); |
| 1046 | |
Ursula Braun | b67d801 | 2010-11-08 03:03:48 +0000 | [diff] [blame] | 1047 | skb = skb_dequeue(&buf->skb_list); |
| 1048 | while (skb) { |
| 1049 | atomic_dec(&skb->users); |
| 1050 | dev_kfree_skb_any(skb); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1051 | skb = skb_dequeue(&buf->skb_list); |
| 1052 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1053 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) { |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 1054 | if (buf->buffer->element[i].addr && buf->is_header[i]) |
| 1055 | kmem_cache_free(qeth_core_header_cache, |
| 1056 | buf->buffer->element[i].addr); |
| 1057 | buf->is_header[i] = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1058 | buf->buffer->element[i].length = 0; |
| 1059 | buf->buffer->element[i].addr = NULL; |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 1060 | buf->buffer->element[i].eflags = 0; |
| 1061 | buf->buffer->element[i].sflags = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1062 | } |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 1063 | buf->buffer->element[15].eflags = 0; |
| 1064 | buf->buffer->element[15].sflags = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1065 | buf->next_element_to_fill = 0; |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 1066 | atomic_set(&buf->state, newbufstate); |
| 1067 | } |
| 1068 | |
| 1069 | static void qeth_clear_outq_buffers(struct qeth_qdio_out_q *q, int free) |
| 1070 | { |
| 1071 | int j; |
| 1072 | |
| 1073 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { |
| 1074 | if (!q->bufs[j]) |
| 1075 | continue; |
| 1076 | qeth_cleanup_handled_pending(q, j, free); |
| 1077 | qeth_clear_output_buffer(q, q->bufs[j], QETH_QDIO_BUF_EMPTY); |
| 1078 | if (free) { |
| 1079 | kmem_cache_free(qeth_qdio_outbuf_cache, q->bufs[j]); |
| 1080 | q->bufs[j] = NULL; |
| 1081 | } |
| 1082 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1083 | } |
| 1084 | |
| 1085 | void qeth_clear_qdio_buffers(struct qeth_card *card) |
| 1086 | { |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 1087 | int i; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1088 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1089 | QETH_CARD_TEXT(card, 2, "clearqdbf"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1090 | /* clear outbound buffers to free skbs */ |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 1091 | for (i = 0; i < card->qdio.no_out_queues; ++i) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1092 | if (card->qdio.out_qs[i]) { |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 1093 | qeth_clear_outq_buffers(card->qdio.out_qs[i], 0); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1094 | } |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 1095 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1096 | } |
| 1097 | EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers); |
| 1098 | |
| 1099 | static void qeth_free_buffer_pool(struct qeth_card *card) |
| 1100 | { |
| 1101 | struct qeth_buffer_pool_entry *pool_entry, *tmp; |
| 1102 | int i = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1103 | list_for_each_entry_safe(pool_entry, tmp, |
| 1104 | &card->qdio.init_pool.entry_list, init_list){ |
| 1105 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) |
| 1106 | free_page((unsigned long)pool_entry->elements[i]); |
| 1107 | list_del(&pool_entry->init_list); |
| 1108 | kfree(pool_entry); |
| 1109 | } |
| 1110 | } |
| 1111 | |
| 1112 | static void qeth_free_qdio_buffers(struct qeth_card *card) |
| 1113 | { |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 1114 | int i; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1115 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1116 | if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) == |
| 1117 | QETH_QDIO_UNINITIALIZED) |
| 1118 | return; |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 1119 | |
| 1120 | qeth_free_cq(card); |
| 1121 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1122 | kfree(card->qdio.in_q); |
| 1123 | card->qdio.in_q = NULL; |
| 1124 | /* inbound buffer pool */ |
| 1125 | qeth_free_buffer_pool(card); |
| 1126 | /* free outbound qdio_qs */ |
| 1127 | if (card->qdio.out_qs) { |
| 1128 | for (i = 0; i < card->qdio.no_out_queues; ++i) { |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 1129 | qeth_clear_outq_buffers(card->qdio.out_qs[i], 1); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1130 | kfree(card->qdio.out_qs[i]); |
| 1131 | } |
| 1132 | kfree(card->qdio.out_qs); |
| 1133 | card->qdio.out_qs = NULL; |
| 1134 | } |
| 1135 | } |
| 1136 | |
| 1137 | static void qeth_clean_channel(struct qeth_channel *channel) |
| 1138 | { |
| 1139 | int cnt; |
| 1140 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1141 | QETH_DBF_TEXT(SETUP, 2, "freech"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1142 | for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) |
| 1143 | kfree(channel->iob[cnt].data); |
| 1144 | } |
| 1145 | |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1146 | static void qeth_get_channel_path_desc(struct qeth_card *card) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1147 | { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1148 | struct ccw_device *ccwdev; |
| 1149 | struct channelPath_dsc { |
| 1150 | u8 flags; |
| 1151 | u8 lsn; |
| 1152 | u8 desc; |
| 1153 | u8 chpid; |
| 1154 | u8 swla; |
| 1155 | u8 zeroes; |
| 1156 | u8 chla; |
| 1157 | u8 chpp; |
| 1158 | } *chp_dsc; |
| 1159 | |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1160 | QETH_DBF_TEXT(SETUP, 2, "chp_desc"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1161 | |
| 1162 | ccwdev = card->data.ccwdev; |
| 1163 | chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0); |
| 1164 | if (chp_dsc != NULL) { |
Ursula Braun | 99558ea | 2011-08-08 01:33:48 +0000 | [diff] [blame] | 1165 | if (card->info.type != QETH_CARD_TYPE_IQD) { |
| 1166 | /* CHPP field bit 6 == 1 -> single queue */ |
| 1167 | if ((chp_dsc->chpp & 0x02) == 0x02) { |
| 1168 | if ((atomic_read(&card->qdio.state) != |
| 1169 | QETH_QDIO_UNINITIALIZED) && |
| 1170 | (card->qdio.no_out_queues == 4)) |
| 1171 | /* change from 4 to 1 outbound queues */ |
| 1172 | qeth_free_qdio_buffers(card); |
| 1173 | card->qdio.no_out_queues = 1; |
| 1174 | if (card->qdio.default_out_queue != 0) |
| 1175 | dev_info(&card->gdev->dev, |
Ursula Braun | d0ff1f5 | 2011-02-02 06:04:34 +0000 | [diff] [blame] | 1176 | "Priority Queueing not supported\n"); |
Ursula Braun | 99558ea | 2011-08-08 01:33:48 +0000 | [diff] [blame] | 1177 | card->qdio.default_out_queue = 0; |
| 1178 | } else { |
| 1179 | if ((atomic_read(&card->qdio.state) != |
| 1180 | QETH_QDIO_UNINITIALIZED) && |
| 1181 | (card->qdio.no_out_queues == 1)) { |
| 1182 | /* change from 1 to 4 outbound queues */ |
| 1183 | qeth_free_qdio_buffers(card); |
| 1184 | card->qdio.default_out_queue = 2; |
| 1185 | } |
| 1186 | card->qdio.no_out_queues = 4; |
Ursula Braun | d0ff1f5 | 2011-02-02 06:04:34 +0000 | [diff] [blame] | 1187 | } |
Ursula Braun | d0ff1f5 | 2011-02-02 06:04:34 +0000 | [diff] [blame] | 1188 | } |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1189 | card->info.func_level = 0x4100 + chp_dsc->desc; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1190 | kfree(chp_dsc); |
| 1191 | } |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1192 | QETH_DBF_TEXT_(SETUP, 2, "nr:%x", card->qdio.no_out_queues); |
| 1193 | QETH_DBF_TEXT_(SETUP, 2, "lvl:%02x", card->info.func_level); |
| 1194 | return; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1195 | } |
| 1196 | |
| 1197 | static void qeth_init_qdio_info(struct qeth_card *card) |
| 1198 | { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1199 | QETH_DBF_TEXT(SETUP, 4, "intqdinf"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1200 | atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); |
| 1201 | /* inbound */ |
| 1202 | card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT; |
Frank Blaschka | dcf4ae2 | 2011-03-14 15:39:47 -0700 | [diff] [blame] | 1203 | if (card->info.type == QETH_CARD_TYPE_IQD) |
| 1204 | card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_HSDEFAULT; |
| 1205 | else |
| 1206 | card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1207 | card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count; |
| 1208 | INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list); |
| 1209 | INIT_LIST_HEAD(&card->qdio.init_pool.entry_list); |
| 1210 | } |
| 1211 | |
| 1212 | static void qeth_set_intial_options(struct qeth_card *card) |
| 1213 | { |
| 1214 | card->options.route4.type = NO_ROUTER; |
| 1215 | card->options.route6.type = NO_ROUTER; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1216 | card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS; |
| 1217 | card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL; |
| 1218 | card->options.fake_broadcast = 0; |
| 1219 | card->options.add_hhlen = DEFAULT_ADD_HHLEN; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1220 | card->options.performance_stats = 0; |
| 1221 | card->options.rx_sg_cb = QETH_RX_SG_CB; |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 1222 | card->options.isolation = ISOLATION_MODE_NONE; |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 1223 | card->options.cq = QETH_CQ_DISABLED; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1224 | } |
| 1225 | |
| 1226 | static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread) |
| 1227 | { |
| 1228 | unsigned long flags; |
| 1229 | int rc = 0; |
| 1230 | |
| 1231 | spin_lock_irqsave(&card->thread_mask_lock, flags); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1232 | QETH_CARD_TEXT_(card, 4, " %02x%02x%02x", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1233 | (u8) card->thread_start_mask, |
| 1234 | (u8) card->thread_allowed_mask, |
| 1235 | (u8) card->thread_running_mask); |
| 1236 | rc = (card->thread_start_mask & thread); |
| 1237 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| 1238 | return rc; |
| 1239 | } |
| 1240 | |
| 1241 | static void qeth_start_kernel_thread(struct work_struct *work) |
| 1242 | { |
| 1243 | struct qeth_card *card = container_of(work, struct qeth_card, |
| 1244 | kernel_thread_starter); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1245 | QETH_CARD_TEXT(card , 2, "strthrd"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1246 | |
| 1247 | if (card->read.state != CH_STATE_UP && |
| 1248 | card->write.state != CH_STATE_UP) |
| 1249 | return; |
| 1250 | if (qeth_do_start_thread(card, QETH_RECOVER_THREAD)) |
| 1251 | kthread_run(card->discipline.recover, (void *) card, |
| 1252 | "qeth_recover"); |
| 1253 | } |
| 1254 | |
| 1255 | static int qeth_setup_card(struct qeth_card *card) |
| 1256 | { |
| 1257 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1258 | QETH_DBF_TEXT(SETUP, 2, "setupcrd"); |
| 1259 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1260 | |
| 1261 | card->read.state = CH_STATE_DOWN; |
| 1262 | card->write.state = CH_STATE_DOWN; |
| 1263 | card->data.state = CH_STATE_DOWN; |
| 1264 | card->state = CARD_STATE_DOWN; |
| 1265 | card->lan_online = 0; |
Ursula Braun | 908abbb | 2010-07-22 23:15:06 +0000 | [diff] [blame] | 1266 | card->read_or_write_problem = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1267 | card->dev = NULL; |
| 1268 | spin_lock_init(&card->vlanlock); |
| 1269 | spin_lock_init(&card->mclock); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1270 | spin_lock_init(&card->lock); |
| 1271 | spin_lock_init(&card->ip_lock); |
| 1272 | spin_lock_init(&card->thread_mask_lock); |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 1273 | mutex_init(&card->conf_mutex); |
Ursula Braun | 9dc48cc | 2010-07-22 23:15:05 +0000 | [diff] [blame] | 1274 | mutex_init(&card->discipline_mutex); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1275 | card->thread_start_mask = 0; |
| 1276 | card->thread_allowed_mask = 0; |
| 1277 | card->thread_running_mask = 0; |
| 1278 | INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread); |
| 1279 | INIT_LIST_HEAD(&card->ip_list); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1280 | INIT_LIST_HEAD(card->ip_tbd_list); |
| 1281 | INIT_LIST_HEAD(&card->cmd_waiter_list); |
| 1282 | init_waitqueue_head(&card->wait_q); |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 1283 | /* initial options */ |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1284 | qeth_set_intial_options(card); |
| 1285 | /* IP address takeover */ |
| 1286 | INIT_LIST_HEAD(&card->ipato.entries); |
| 1287 | card->ipato.enabled = 0; |
| 1288 | card->ipato.invert4 = 0; |
| 1289 | card->ipato.invert6 = 0; |
| 1290 | /* init QDIO stuff */ |
| 1291 | qeth_init_qdio_info(card); |
| 1292 | return 0; |
| 1293 | } |
| 1294 | |
Martin Schwidefsky | 6bcac50 | 2008-12-25 13:38:49 +0100 | [diff] [blame] | 1295 | static void qeth_core_sl_print(struct seq_file *m, struct service_level *slr) |
| 1296 | { |
| 1297 | struct qeth_card *card = container_of(slr, struct qeth_card, |
| 1298 | qeth_service_level); |
Klaus-Dieter Wacker | 0d788c7 | 2009-08-26 02:01:09 +0000 | [diff] [blame] | 1299 | if (card->info.mcl_level[0]) |
| 1300 | seq_printf(m, "qeth: %s firmware level %s\n", |
| 1301 | CARD_BUS_ID(card), card->info.mcl_level); |
Martin Schwidefsky | 6bcac50 | 2008-12-25 13:38:49 +0100 | [diff] [blame] | 1302 | } |
| 1303 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1304 | static struct qeth_card *qeth_alloc_card(void) |
| 1305 | { |
| 1306 | struct qeth_card *card; |
| 1307 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1308 | QETH_DBF_TEXT(SETUP, 2, "alloccrd"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1309 | card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL); |
| 1310 | if (!card) |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 1311 | goto out; |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1312 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 1313 | card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL); |
| 1314 | if (!card->ip_tbd_list) { |
| 1315 | QETH_DBF_TEXT(SETUP, 0, "iptbdnom"); |
| 1316 | goto out_card; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1317 | } |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 1318 | if (qeth_setup_channel(&card->read)) |
| 1319 | goto out_ip; |
| 1320 | if (qeth_setup_channel(&card->write)) |
| 1321 | goto out_channel; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1322 | card->options.layer2 = -1; |
Martin Schwidefsky | 6bcac50 | 2008-12-25 13:38:49 +0100 | [diff] [blame] | 1323 | card->qeth_service_level.seq_print = qeth_core_sl_print; |
| 1324 | register_service_level(&card->qeth_service_level); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1325 | return card; |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 1326 | |
| 1327 | out_channel: |
| 1328 | qeth_clean_channel(&card->read); |
| 1329 | out_ip: |
| 1330 | kfree(card->ip_tbd_list); |
| 1331 | out_card: |
| 1332 | kfree(card); |
| 1333 | out: |
| 1334 | return NULL; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1335 | } |
| 1336 | |
| 1337 | static int qeth_determine_card_type(struct qeth_card *card) |
| 1338 | { |
| 1339 | int i = 0; |
| 1340 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1341 | QETH_DBF_TEXT(SETUP, 2, "detcdtyp"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1342 | |
| 1343 | card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT; |
| 1344 | card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1345 | while (known_devices[i][QETH_DEV_MODEL_IND]) { |
| 1346 | if ((CARD_RDEV(card)->id.dev_type == |
| 1347 | known_devices[i][QETH_DEV_TYPE_IND]) && |
| 1348 | (CARD_RDEV(card)->id.dev_model == |
| 1349 | known_devices[i][QETH_DEV_MODEL_IND])) { |
| 1350 | card->info.type = known_devices[i][QETH_DEV_MODEL_IND]; |
| 1351 | card->qdio.no_out_queues = |
| 1352 | known_devices[i][QETH_QUEUE_NO_IND]; |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 1353 | card->qdio.no_in_queues = 1; |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1354 | card->info.is_multicast_different = |
| 1355 | known_devices[i][QETH_MULTICAST_IND]; |
| 1356 | qeth_get_channel_path_desc(card); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1357 | return 0; |
| 1358 | } |
| 1359 | i++; |
| 1360 | } |
| 1361 | card->info.type = QETH_CARD_TYPE_UNKNOWN; |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 1362 | dev_err(&card->gdev->dev, "The adapter hardware is of an " |
| 1363 | "unknown type\n"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1364 | return -ENOENT; |
| 1365 | } |
| 1366 | |
| 1367 | static int qeth_clear_channel(struct qeth_channel *channel) |
| 1368 | { |
| 1369 | unsigned long flags; |
| 1370 | struct qeth_card *card; |
| 1371 | int rc; |
| 1372 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1373 | card = CARD_FROM_CDEV(channel->ccwdev); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1374 | QETH_CARD_TEXT(card, 3, "clearch"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1375 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
| 1376 | rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM); |
| 1377 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); |
| 1378 | |
| 1379 | if (rc) |
| 1380 | return rc; |
| 1381 | rc = wait_event_interruptible_timeout(card->wait_q, |
| 1382 | channel->state == CH_STATE_STOPPED, QETH_TIMEOUT); |
| 1383 | if (rc == -ERESTARTSYS) |
| 1384 | return rc; |
| 1385 | if (channel->state != CH_STATE_STOPPED) |
| 1386 | return -ETIME; |
| 1387 | channel->state = CH_STATE_DOWN; |
| 1388 | return 0; |
| 1389 | } |
| 1390 | |
| 1391 | static int qeth_halt_channel(struct qeth_channel *channel) |
| 1392 | { |
| 1393 | unsigned long flags; |
| 1394 | struct qeth_card *card; |
| 1395 | int rc; |
| 1396 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1397 | card = CARD_FROM_CDEV(channel->ccwdev); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1398 | QETH_CARD_TEXT(card, 3, "haltch"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1399 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
| 1400 | rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM); |
| 1401 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); |
| 1402 | |
| 1403 | if (rc) |
| 1404 | return rc; |
| 1405 | rc = wait_event_interruptible_timeout(card->wait_q, |
| 1406 | channel->state == CH_STATE_HALTED, QETH_TIMEOUT); |
| 1407 | if (rc == -ERESTARTSYS) |
| 1408 | return rc; |
| 1409 | if (channel->state != CH_STATE_HALTED) |
| 1410 | return -ETIME; |
| 1411 | return 0; |
| 1412 | } |
| 1413 | |
| 1414 | static int qeth_halt_channels(struct qeth_card *card) |
| 1415 | { |
| 1416 | int rc1 = 0, rc2 = 0, rc3 = 0; |
| 1417 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1418 | QETH_CARD_TEXT(card, 3, "haltchs"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1419 | rc1 = qeth_halt_channel(&card->read); |
| 1420 | rc2 = qeth_halt_channel(&card->write); |
| 1421 | rc3 = qeth_halt_channel(&card->data); |
| 1422 | if (rc1) |
| 1423 | return rc1; |
| 1424 | if (rc2) |
| 1425 | return rc2; |
| 1426 | return rc3; |
| 1427 | } |
| 1428 | |
| 1429 | static int qeth_clear_channels(struct qeth_card *card) |
| 1430 | { |
| 1431 | int rc1 = 0, rc2 = 0, rc3 = 0; |
| 1432 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1433 | QETH_CARD_TEXT(card, 3, "clearchs"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1434 | rc1 = qeth_clear_channel(&card->read); |
| 1435 | rc2 = qeth_clear_channel(&card->write); |
| 1436 | rc3 = qeth_clear_channel(&card->data); |
| 1437 | if (rc1) |
| 1438 | return rc1; |
| 1439 | if (rc2) |
| 1440 | return rc2; |
| 1441 | return rc3; |
| 1442 | } |
| 1443 | |
| 1444 | static int qeth_clear_halt_card(struct qeth_card *card, int halt) |
| 1445 | { |
| 1446 | int rc = 0; |
| 1447 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1448 | QETH_CARD_TEXT(card, 3, "clhacrd"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1449 | |
| 1450 | if (halt) |
| 1451 | rc = qeth_halt_channels(card); |
| 1452 | if (rc) |
| 1453 | return rc; |
| 1454 | return qeth_clear_channels(card); |
| 1455 | } |
| 1456 | |
| 1457 | int qeth_qdio_clear_card(struct qeth_card *card, int use_halt) |
| 1458 | { |
| 1459 | int rc = 0; |
| 1460 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1461 | QETH_CARD_TEXT(card, 3, "qdioclr"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1462 | switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED, |
| 1463 | QETH_QDIO_CLEANING)) { |
| 1464 | case QETH_QDIO_ESTABLISHED: |
| 1465 | if (card->info.type == QETH_CARD_TYPE_IQD) |
Jan Glauber | cc961d4 | 2010-05-17 10:00:19 +0200 | [diff] [blame] | 1466 | rc = qdio_shutdown(CARD_DDEV(card), |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1467 | QDIO_FLAG_CLEANUP_USING_HALT); |
| 1468 | else |
Jan Glauber | cc961d4 | 2010-05-17 10:00:19 +0200 | [diff] [blame] | 1469 | rc = qdio_shutdown(CARD_DDEV(card), |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1470 | QDIO_FLAG_CLEANUP_USING_CLEAR); |
| 1471 | if (rc) |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1472 | QETH_CARD_TEXT_(card, 3, "1err%d", rc); |
Jan Glauber | cc961d4 | 2010-05-17 10:00:19 +0200 | [diff] [blame] | 1473 | qdio_free(CARD_DDEV(card)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1474 | atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); |
| 1475 | break; |
| 1476 | case QETH_QDIO_CLEANING: |
| 1477 | return rc; |
| 1478 | default: |
| 1479 | break; |
| 1480 | } |
| 1481 | rc = qeth_clear_halt_card(card, use_halt); |
| 1482 | if (rc) |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1483 | QETH_CARD_TEXT_(card, 3, "2err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1484 | card->state = CARD_STATE_DOWN; |
| 1485 | return rc; |
| 1486 | } |
| 1487 | EXPORT_SYMBOL_GPL(qeth_qdio_clear_card); |
| 1488 | |
| 1489 | static int qeth_read_conf_data(struct qeth_card *card, void **buffer, |
| 1490 | int *length) |
| 1491 | { |
| 1492 | struct ciw *ciw; |
| 1493 | char *rcd_buf; |
| 1494 | int ret; |
| 1495 | struct qeth_channel *channel = &card->data; |
| 1496 | unsigned long flags; |
| 1497 | |
| 1498 | /* |
| 1499 | * scan for RCD command in extended SenseID data |
| 1500 | */ |
| 1501 | ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD); |
| 1502 | if (!ciw || ciw->cmd == 0) |
| 1503 | return -EOPNOTSUPP; |
| 1504 | rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA); |
| 1505 | if (!rcd_buf) |
| 1506 | return -ENOMEM; |
| 1507 | |
| 1508 | channel->ccw.cmd_code = ciw->cmd; |
| 1509 | channel->ccw.cda = (__u32) __pa(rcd_buf); |
| 1510 | channel->ccw.count = ciw->count; |
| 1511 | channel->ccw.flags = CCW_FLAG_SLI; |
| 1512 | channel->state = CH_STATE_RCD; |
| 1513 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
| 1514 | ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw, |
| 1515 | QETH_RCD_PARM, LPM_ANYPATH, 0, |
| 1516 | QETH_RCD_TIMEOUT); |
| 1517 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); |
| 1518 | if (!ret) |
| 1519 | wait_event(card->wait_q, |
| 1520 | (channel->state == CH_STATE_RCD_DONE || |
| 1521 | channel->state == CH_STATE_DOWN)); |
| 1522 | if (channel->state == CH_STATE_DOWN) |
| 1523 | ret = -EIO; |
| 1524 | else |
| 1525 | channel->state = CH_STATE_DOWN; |
| 1526 | if (ret) { |
| 1527 | kfree(rcd_buf); |
| 1528 | *buffer = NULL; |
| 1529 | *length = 0; |
| 1530 | } else { |
| 1531 | *length = ciw->count; |
| 1532 | *buffer = rcd_buf; |
| 1533 | } |
| 1534 | return ret; |
| 1535 | } |
| 1536 | |
Einar Lueck | a60389a | 2010-01-11 02:50:52 +0000 | [diff] [blame] | 1537 | static void qeth_configure_unitaddr(struct qeth_card *card, char *prcd) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1538 | { |
Einar Lueck | a60389a | 2010-01-11 02:50:52 +0000 | [diff] [blame] | 1539 | QETH_DBF_TEXT(SETUP, 2, "cfgunit"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1540 | card->info.chpid = prcd[30]; |
| 1541 | card->info.unit_addr2 = prcd[31]; |
| 1542 | card->info.cula = prcd[63]; |
| 1543 | card->info.guestlan = ((prcd[0x10] == _ascebc['V']) && |
| 1544 | (prcd[0x11] == _ascebc['M'])); |
Einar Lueck | a60389a | 2010-01-11 02:50:52 +0000 | [diff] [blame] | 1545 | } |
| 1546 | |
| 1547 | static void qeth_configure_blkt_default(struct qeth_card *card, char *prcd) |
| 1548 | { |
| 1549 | QETH_DBF_TEXT(SETUP, 2, "cfgblkt"); |
| 1550 | |
| 1551 | if (prcd[74] == 0xF0 && prcd[75] == 0xF0 && prcd[76] == 0xF5) { |
| 1552 | card->info.blkt.time_total = 250; |
| 1553 | card->info.blkt.inter_packet = 5; |
| 1554 | card->info.blkt.inter_packet_jumbo = 15; |
| 1555 | } else { |
| 1556 | card->info.blkt.time_total = 0; |
| 1557 | card->info.blkt.inter_packet = 0; |
| 1558 | card->info.blkt.inter_packet_jumbo = 0; |
| 1559 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1560 | } |
| 1561 | |
| 1562 | static void qeth_init_tokens(struct qeth_card *card) |
| 1563 | { |
| 1564 | card->token.issuer_rm_w = 0x00010103UL; |
| 1565 | card->token.cm_filter_w = 0x00010108UL; |
| 1566 | card->token.cm_connection_w = 0x0001010aUL; |
| 1567 | card->token.ulp_filter_w = 0x0001010bUL; |
| 1568 | card->token.ulp_connection_w = 0x0001010dUL; |
| 1569 | } |
| 1570 | |
| 1571 | static void qeth_init_func_level(struct qeth_card *card) |
| 1572 | { |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1573 | switch (card->info.type) { |
| 1574 | case QETH_CARD_TYPE_IQD: |
Klaus-Dieter Wacker | 6298263 | 2010-07-22 23:15:03 +0000 | [diff] [blame] | 1575 | card->info.func_level = QETH_IDX_FUNC_LEVEL_IQD; |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1576 | break; |
| 1577 | case QETH_CARD_TYPE_OSD: |
Ursula Braun | 0132951 | 2010-06-21 22:57:11 +0000 | [diff] [blame] | 1578 | case QETH_CARD_TYPE_OSN: |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1579 | card->info.func_level = QETH_IDX_FUNC_LEVEL_OSD; |
| 1580 | break; |
| 1581 | default: |
| 1582 | break; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1583 | } |
| 1584 | } |
| 1585 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1586 | static int qeth_idx_activate_get_answer(struct qeth_channel *channel, |
| 1587 | void (*idx_reply_cb)(struct qeth_channel *, |
| 1588 | struct qeth_cmd_buffer *)) |
| 1589 | { |
| 1590 | struct qeth_cmd_buffer *iob; |
| 1591 | unsigned long flags; |
| 1592 | int rc; |
| 1593 | struct qeth_card *card; |
| 1594 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1595 | QETH_DBF_TEXT(SETUP, 2, "idxanswr"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1596 | card = CARD_FROM_CDEV(channel->ccwdev); |
| 1597 | iob = qeth_get_buffer(channel); |
| 1598 | iob->callback = idx_reply_cb; |
| 1599 | memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1)); |
| 1600 | channel->ccw.count = QETH_BUFSIZE; |
| 1601 | channel->ccw.cda = (__u32) __pa(iob->data); |
| 1602 | |
| 1603 | wait_event(card->wait_q, |
| 1604 | atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1605 | QETH_DBF_TEXT(SETUP, 6, "noirqpnd"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1606 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
| 1607 | rc = ccw_device_start(channel->ccwdev, |
| 1608 | &channel->ccw, (addr_t) iob, 0, 0); |
| 1609 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); |
| 1610 | |
| 1611 | if (rc) { |
Frank Blaschka | 14cc21b | 2008-06-06 12:37:46 +0200 | [diff] [blame] | 1612 | QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1613 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1614 | atomic_set(&channel->irq_pending, 0); |
| 1615 | wake_up(&card->wait_q); |
| 1616 | return rc; |
| 1617 | } |
| 1618 | rc = wait_event_interruptible_timeout(card->wait_q, |
| 1619 | channel->state == CH_STATE_UP, QETH_TIMEOUT); |
| 1620 | if (rc == -ERESTARTSYS) |
| 1621 | return rc; |
| 1622 | if (channel->state != CH_STATE_UP) { |
| 1623 | rc = -ETIME; |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1624 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1625 | qeth_clear_cmd_buffers(channel); |
| 1626 | } else |
| 1627 | rc = 0; |
| 1628 | return rc; |
| 1629 | } |
| 1630 | |
| 1631 | static int qeth_idx_activate_channel(struct qeth_channel *channel, |
| 1632 | void (*idx_reply_cb)(struct qeth_channel *, |
| 1633 | struct qeth_cmd_buffer *)) |
| 1634 | { |
| 1635 | struct qeth_card *card; |
| 1636 | struct qeth_cmd_buffer *iob; |
| 1637 | unsigned long flags; |
| 1638 | __u16 temp; |
| 1639 | __u8 tmp; |
| 1640 | int rc; |
Cornelia Huck | f06f6f3 | 2008-06-06 12:37:45 +0200 | [diff] [blame] | 1641 | struct ccw_dev_id temp_devid; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1642 | |
| 1643 | card = CARD_FROM_CDEV(channel->ccwdev); |
| 1644 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1645 | QETH_DBF_TEXT(SETUP, 2, "idxactch"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1646 | |
| 1647 | iob = qeth_get_buffer(channel); |
| 1648 | iob->callback = idx_reply_cb; |
| 1649 | memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1)); |
| 1650 | channel->ccw.count = IDX_ACTIVATE_SIZE; |
| 1651 | channel->ccw.cda = (__u32) __pa(iob->data); |
| 1652 | if (channel == &card->write) { |
| 1653 | memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE); |
| 1654 | memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), |
| 1655 | &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); |
| 1656 | card->seqno.trans_hdr++; |
| 1657 | } else { |
| 1658 | memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE); |
| 1659 | memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), |
| 1660 | &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); |
| 1661 | } |
| 1662 | tmp = ((__u8)card->info.portno) | 0x80; |
| 1663 | memcpy(QETH_IDX_ACT_PNO(iob->data), &tmp, 1); |
| 1664 | memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data), |
| 1665 | &card->token.issuer_rm_w, QETH_MPC_TOKEN_LENGTH); |
| 1666 | memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data), |
| 1667 | &card->info.func_level, sizeof(__u16)); |
Cornelia Huck | f06f6f3 | 2008-06-06 12:37:45 +0200 | [diff] [blame] | 1668 | ccw_device_get_id(CARD_DDEV(card), &temp_devid); |
| 1669 | 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] | 1670 | temp = (card->info.cula << 8) + card->info.unit_addr2; |
| 1671 | memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2); |
| 1672 | |
| 1673 | wait_event(card->wait_q, |
| 1674 | atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1675 | QETH_DBF_TEXT(SETUP, 6, "noirqpnd"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1676 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
| 1677 | rc = ccw_device_start(channel->ccwdev, |
| 1678 | &channel->ccw, (addr_t) iob, 0, 0); |
| 1679 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); |
| 1680 | |
| 1681 | if (rc) { |
Frank Blaschka | 14cc21b | 2008-06-06 12:37:46 +0200 | [diff] [blame] | 1682 | QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n", |
| 1683 | rc); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1684 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1685 | atomic_set(&channel->irq_pending, 0); |
| 1686 | wake_up(&card->wait_q); |
| 1687 | return rc; |
| 1688 | } |
| 1689 | rc = wait_event_interruptible_timeout(card->wait_q, |
| 1690 | channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT); |
| 1691 | if (rc == -ERESTARTSYS) |
| 1692 | return rc; |
| 1693 | if (channel->state != CH_STATE_ACTIVATING) { |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 1694 | dev_warn(&channel->ccwdev->dev, "The qeth device driver" |
| 1695 | " failed to recover an error on the device\n"); |
| 1696 | QETH_DBF_MESSAGE(2, "%s IDX activate timed out\n", |
| 1697 | dev_name(&channel->ccwdev->dev)); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1698 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1699 | qeth_clear_cmd_buffers(channel); |
| 1700 | return -ETIME; |
| 1701 | } |
| 1702 | return qeth_idx_activate_get_answer(channel, idx_reply_cb); |
| 1703 | } |
| 1704 | |
| 1705 | static int qeth_peer_func_level(int level) |
| 1706 | { |
| 1707 | if ((level & 0xff) == 8) |
| 1708 | return (level & 0xff) + 0x400; |
| 1709 | if (((level >> 8) & 3) == 1) |
| 1710 | return (level & 0xff) + 0x200; |
| 1711 | return level; |
| 1712 | } |
| 1713 | |
| 1714 | static void qeth_idx_write_cb(struct qeth_channel *channel, |
| 1715 | struct qeth_cmd_buffer *iob) |
| 1716 | { |
| 1717 | struct qeth_card *card; |
| 1718 | __u16 temp; |
| 1719 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1720 | QETH_DBF_TEXT(SETUP , 2, "idxwrcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1721 | |
| 1722 | if (channel->state == CH_STATE_DOWN) { |
| 1723 | channel->state = CH_STATE_ACTIVATING; |
| 1724 | goto out; |
| 1725 | } |
| 1726 | card = CARD_FROM_CDEV(channel->ccwdev); |
| 1727 | |
| 1728 | if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1729 | if (QETH_IDX_ACT_CAUSE_CODE(iob->data) == QETH_IDX_ACT_ERR_EXCL) |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 1730 | dev_err(&card->write.ccwdev->dev, |
| 1731 | "The adapter is used exclusively by another " |
| 1732 | "host\n"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1733 | else |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 1734 | QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel:" |
| 1735 | " negative reply\n", |
| 1736 | dev_name(&card->write.ccwdev->dev)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1737 | goto out; |
| 1738 | } |
| 1739 | memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); |
| 1740 | if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) { |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 1741 | QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel: " |
| 1742 | "function level mismatch (sent: 0x%x, received: " |
| 1743 | "0x%x)\n", dev_name(&card->write.ccwdev->dev), |
| 1744 | card->info.func_level, temp); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1745 | goto out; |
| 1746 | } |
| 1747 | channel->state = CH_STATE_UP; |
| 1748 | out: |
| 1749 | qeth_release_buffer(channel, iob); |
| 1750 | } |
| 1751 | |
| 1752 | static void qeth_idx_read_cb(struct qeth_channel *channel, |
| 1753 | struct qeth_cmd_buffer *iob) |
| 1754 | { |
| 1755 | struct qeth_card *card; |
| 1756 | __u16 temp; |
| 1757 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1758 | QETH_DBF_TEXT(SETUP , 2, "idxrdcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1759 | if (channel->state == CH_STATE_DOWN) { |
| 1760 | channel->state = CH_STATE_ACTIVATING; |
| 1761 | goto out; |
| 1762 | } |
| 1763 | |
| 1764 | card = CARD_FROM_CDEV(channel->ccwdev); |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1765 | if (qeth_check_idx_response(card, iob->data)) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1766 | goto out; |
| 1767 | |
| 1768 | if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1769 | switch (QETH_IDX_ACT_CAUSE_CODE(iob->data)) { |
| 1770 | case QETH_IDX_ACT_ERR_EXCL: |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 1771 | dev_err(&card->write.ccwdev->dev, |
| 1772 | "The adapter is used exclusively by another " |
| 1773 | "host\n"); |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1774 | break; |
| 1775 | case QETH_IDX_ACT_ERR_AUTH: |
Ursula Braun | 01fc3e8 | 2010-06-21 22:57:12 +0000 | [diff] [blame] | 1776 | case QETH_IDX_ACT_ERR_AUTH_USER: |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1777 | dev_err(&card->read.ccwdev->dev, |
| 1778 | "Setting the device online failed because of " |
Ursula Braun | 01fc3e8 | 2010-06-21 22:57:12 +0000 | [diff] [blame] | 1779 | "insufficient authorization\n"); |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1780 | break; |
| 1781 | default: |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 1782 | QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel:" |
| 1783 | " negative reply\n", |
| 1784 | dev_name(&card->read.ccwdev->dev)); |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1785 | } |
Ursula Braun | 01fc3e8 | 2010-06-21 22:57:12 +0000 | [diff] [blame] | 1786 | QETH_CARD_TEXT_(card, 2, "idxread%c", |
| 1787 | QETH_IDX_ACT_CAUSE_CODE(iob->data)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1788 | goto out; |
| 1789 | } |
| 1790 | |
| 1791 | /** |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1792 | * * temporary fix for microcode bug |
| 1793 | * * to revert it,replace OR by AND |
| 1794 | * */ |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1795 | if ((!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) || |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1796 | (card->info.type == QETH_CARD_TYPE_OSD)) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1797 | card->info.portname_required = 1; |
| 1798 | |
| 1799 | memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); |
| 1800 | if (temp != qeth_peer_func_level(card->info.func_level)) { |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 1801 | QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel: function " |
| 1802 | "level mismatch (sent: 0x%x, received: 0x%x)\n", |
| 1803 | dev_name(&card->read.ccwdev->dev), |
| 1804 | card->info.func_level, temp); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1805 | goto out; |
| 1806 | } |
| 1807 | memcpy(&card->token.issuer_rm_r, |
| 1808 | QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data), |
| 1809 | QETH_MPC_TOKEN_LENGTH); |
| 1810 | memcpy(&card->info.mcl_level[0], |
| 1811 | QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH); |
| 1812 | channel->state = CH_STATE_UP; |
| 1813 | out: |
| 1814 | qeth_release_buffer(channel, iob); |
| 1815 | } |
| 1816 | |
| 1817 | void qeth_prepare_control_data(struct qeth_card *card, int len, |
| 1818 | struct qeth_cmd_buffer *iob) |
| 1819 | { |
| 1820 | qeth_setup_ccw(&card->write, iob->data, len); |
| 1821 | iob->callback = qeth_release_buffer; |
| 1822 | |
| 1823 | memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), |
| 1824 | &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); |
| 1825 | card->seqno.trans_hdr++; |
| 1826 | memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data), |
| 1827 | &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH); |
| 1828 | card->seqno.pdu_hdr++; |
| 1829 | memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data), |
| 1830 | &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1831 | QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1832 | } |
| 1833 | EXPORT_SYMBOL_GPL(qeth_prepare_control_data); |
| 1834 | |
| 1835 | int qeth_send_control_data(struct qeth_card *card, int len, |
| 1836 | struct qeth_cmd_buffer *iob, |
| 1837 | int (*reply_cb)(struct qeth_card *, struct qeth_reply *, |
| 1838 | unsigned long), |
| 1839 | void *reply_param) |
| 1840 | { |
| 1841 | int rc; |
| 1842 | unsigned long flags; |
| 1843 | struct qeth_reply *reply = NULL; |
Heiko Carstens | 7834cd5 | 2009-03-24 20:57:19 +0000 | [diff] [blame] | 1844 | unsigned long timeout, event_timeout; |
Frank Blaschka | 5b54e16 | 2009-01-04 17:35:44 -0800 | [diff] [blame] | 1845 | struct qeth_ipa_cmd *cmd; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1846 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1847 | QETH_CARD_TEXT(card, 2, "sendctl"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1848 | |
Ursula Braun | 908abbb | 2010-07-22 23:15:06 +0000 | [diff] [blame] | 1849 | if (card->read_or_write_problem) { |
| 1850 | qeth_release_buffer(iob->channel, iob); |
| 1851 | return -EIO; |
| 1852 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1853 | reply = qeth_alloc_reply(card); |
| 1854 | if (!reply) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1855 | return -ENOMEM; |
| 1856 | } |
| 1857 | reply->callback = reply_cb; |
| 1858 | reply->param = reply_param; |
| 1859 | if (card->state == CARD_STATE_DOWN) |
| 1860 | reply->seqno = QETH_IDX_COMMAND_SEQNO; |
| 1861 | else |
| 1862 | reply->seqno = card->seqno.ipa++; |
| 1863 | init_waitqueue_head(&reply->wait_q); |
| 1864 | spin_lock_irqsave(&card->lock, flags); |
| 1865 | list_add_tail(&reply->list, &card->cmd_waiter_list); |
| 1866 | spin_unlock_irqrestore(&card->lock, flags); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1867 | QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1868 | |
| 1869 | while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ; |
| 1870 | qeth_prepare_control_data(card, len, iob); |
| 1871 | |
| 1872 | if (IS_IPA(iob->data)) |
Heiko Carstens | 7834cd5 | 2009-03-24 20:57:19 +0000 | [diff] [blame] | 1873 | event_timeout = QETH_IPA_TIMEOUT; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1874 | else |
Heiko Carstens | 7834cd5 | 2009-03-24 20:57:19 +0000 | [diff] [blame] | 1875 | event_timeout = QETH_TIMEOUT; |
| 1876 | timeout = jiffies + event_timeout; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1877 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1878 | QETH_CARD_TEXT(card, 6, "noirqpnd"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1879 | spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); |
| 1880 | rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, |
| 1881 | (addr_t) iob, 0, 0); |
| 1882 | spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); |
| 1883 | if (rc) { |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 1884 | QETH_DBF_MESSAGE(2, "%s qeth_send_control_data: " |
| 1885 | "ccw_device_start rc = %i\n", |
| 1886 | dev_name(&card->write.ccwdev->dev), rc); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1887 | QETH_CARD_TEXT_(card, 2, " err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1888 | spin_lock_irqsave(&card->lock, flags); |
| 1889 | list_del_init(&reply->list); |
| 1890 | qeth_put_reply(reply); |
| 1891 | spin_unlock_irqrestore(&card->lock, flags); |
| 1892 | qeth_release_buffer(iob->channel, iob); |
| 1893 | atomic_set(&card->write.irq_pending, 0); |
| 1894 | wake_up(&card->wait_q); |
| 1895 | return rc; |
| 1896 | } |
Frank Blaschka | 5b54e16 | 2009-01-04 17:35:44 -0800 | [diff] [blame] | 1897 | |
| 1898 | /* we have only one long running ipassist, since we can ensure |
| 1899 | process context of this command we can sleep */ |
| 1900 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| 1901 | if ((cmd->hdr.command == IPA_CMD_SETIP) && |
| 1902 | (cmd->hdr.prot_version == QETH_PROT_IPV4)) { |
| 1903 | if (!wait_event_timeout(reply->wait_q, |
Heiko Carstens | 7834cd5 | 2009-03-24 20:57:19 +0000 | [diff] [blame] | 1904 | atomic_read(&reply->received), event_timeout)) |
Frank Blaschka | 5b54e16 | 2009-01-04 17:35:44 -0800 | [diff] [blame] | 1905 | goto time_err; |
| 1906 | } else { |
| 1907 | while (!atomic_read(&reply->received)) { |
| 1908 | if (time_after(jiffies, timeout)) |
| 1909 | goto time_err; |
| 1910 | cpu_relax(); |
| 1911 | }; |
| 1912 | } |
| 1913 | |
Ursula Braun | 70919e2 | 2011-02-26 22:41:36 -0800 | [diff] [blame] | 1914 | if (reply->rc == -EIO) |
| 1915 | goto error; |
Frank Blaschka | 5b54e16 | 2009-01-04 17:35:44 -0800 | [diff] [blame] | 1916 | rc = reply->rc; |
| 1917 | qeth_put_reply(reply); |
| 1918 | return rc; |
| 1919 | |
| 1920 | time_err: |
Ursula Braun | 70919e2 | 2011-02-26 22:41:36 -0800 | [diff] [blame] | 1921 | reply->rc = -ETIME; |
Frank Blaschka | 5b54e16 | 2009-01-04 17:35:44 -0800 | [diff] [blame] | 1922 | spin_lock_irqsave(&reply->card->lock, flags); |
| 1923 | list_del_init(&reply->list); |
| 1924 | spin_unlock_irqrestore(&reply->card->lock, flags); |
Frank Blaschka | 5b54e16 | 2009-01-04 17:35:44 -0800 | [diff] [blame] | 1925 | atomic_inc(&reply->received); |
Ursula Braun | 70919e2 | 2011-02-26 22:41:36 -0800 | [diff] [blame] | 1926 | error: |
Ursula Braun | 908abbb | 2010-07-22 23:15:06 +0000 | [diff] [blame] | 1927 | atomic_set(&card->write.irq_pending, 0); |
| 1928 | qeth_release_buffer(iob->channel, iob); |
| 1929 | card->write.buf_no = (card->write.buf_no + 1) % QETH_CMD_BUFFER_NO; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1930 | rc = reply->rc; |
| 1931 | qeth_put_reply(reply); |
| 1932 | return rc; |
| 1933 | } |
| 1934 | EXPORT_SYMBOL_GPL(qeth_send_control_data); |
| 1935 | |
| 1936 | static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply, |
| 1937 | unsigned long data) |
| 1938 | { |
| 1939 | struct qeth_cmd_buffer *iob; |
| 1940 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1941 | QETH_DBF_TEXT(SETUP, 2, "cmenblcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1942 | |
| 1943 | iob = (struct qeth_cmd_buffer *) data; |
| 1944 | memcpy(&card->token.cm_filter_r, |
| 1945 | QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data), |
| 1946 | QETH_MPC_TOKEN_LENGTH); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1947 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1948 | return 0; |
| 1949 | } |
| 1950 | |
| 1951 | static int qeth_cm_enable(struct qeth_card *card) |
| 1952 | { |
| 1953 | int rc; |
| 1954 | struct qeth_cmd_buffer *iob; |
| 1955 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1956 | QETH_DBF_TEXT(SETUP, 2, "cmenable"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1957 | |
| 1958 | iob = qeth_wait_for_buffer(&card->write); |
| 1959 | memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE); |
| 1960 | memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data), |
| 1961 | &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH); |
| 1962 | memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data), |
| 1963 | &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH); |
| 1964 | |
| 1965 | rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob, |
| 1966 | qeth_cm_enable_cb, NULL); |
| 1967 | return rc; |
| 1968 | } |
| 1969 | |
| 1970 | static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply, |
| 1971 | unsigned long data) |
| 1972 | { |
| 1973 | |
| 1974 | struct qeth_cmd_buffer *iob; |
| 1975 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1976 | QETH_DBF_TEXT(SETUP, 2, "cmsetpcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1977 | |
| 1978 | iob = (struct qeth_cmd_buffer *) data; |
| 1979 | memcpy(&card->token.cm_connection_r, |
| 1980 | QETH_CM_SETUP_RESP_DEST_ADDR(iob->data), |
| 1981 | QETH_MPC_TOKEN_LENGTH); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1982 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1983 | return 0; |
| 1984 | } |
| 1985 | |
| 1986 | static int qeth_cm_setup(struct qeth_card *card) |
| 1987 | { |
| 1988 | int rc; |
| 1989 | struct qeth_cmd_buffer *iob; |
| 1990 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1991 | QETH_DBF_TEXT(SETUP, 2, "cmsetup"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1992 | |
| 1993 | iob = qeth_wait_for_buffer(&card->write); |
| 1994 | memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE); |
| 1995 | memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data), |
| 1996 | &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH); |
| 1997 | memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data), |
| 1998 | &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH); |
| 1999 | memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data), |
| 2000 | &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH); |
| 2001 | rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob, |
| 2002 | qeth_cm_setup_cb, NULL); |
| 2003 | return rc; |
| 2004 | |
| 2005 | } |
| 2006 | |
| 2007 | static inline int qeth_get_initial_mtu_for_card(struct qeth_card *card) |
| 2008 | { |
| 2009 | switch (card->info.type) { |
| 2010 | case QETH_CARD_TYPE_UNKNOWN: |
| 2011 | return 1500; |
| 2012 | case QETH_CARD_TYPE_IQD: |
| 2013 | return card->info.max_mtu; |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 2014 | case QETH_CARD_TYPE_OSD: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2015 | switch (card->info.link_type) { |
| 2016 | case QETH_LINK_TYPE_HSTR: |
| 2017 | case QETH_LINK_TYPE_LANE_TR: |
| 2018 | return 2000; |
| 2019 | default: |
| 2020 | return 1492; |
| 2021 | } |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 2022 | case QETH_CARD_TYPE_OSM: |
| 2023 | case QETH_CARD_TYPE_OSX: |
| 2024 | return 1492; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2025 | default: |
| 2026 | return 1500; |
| 2027 | } |
| 2028 | } |
| 2029 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2030 | static inline int qeth_get_mtu_outof_framesize(int framesize) |
| 2031 | { |
| 2032 | switch (framesize) { |
| 2033 | case 0x4000: |
| 2034 | return 8192; |
| 2035 | case 0x6000: |
| 2036 | return 16384; |
| 2037 | case 0xa000: |
| 2038 | return 32768; |
| 2039 | case 0xffff: |
| 2040 | return 57344; |
| 2041 | default: |
| 2042 | return 0; |
| 2043 | } |
| 2044 | } |
| 2045 | |
| 2046 | static inline int qeth_mtu_is_valid(struct qeth_card *card, int mtu) |
| 2047 | { |
| 2048 | switch (card->info.type) { |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 2049 | case QETH_CARD_TYPE_OSD: |
| 2050 | case QETH_CARD_TYPE_OSM: |
| 2051 | case QETH_CARD_TYPE_OSX: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2052 | case QETH_CARD_TYPE_IQD: |
| 2053 | return ((mtu >= 576) && |
Frank Blaschka | 9853b97 | 2011-02-02 06:04:32 +0000 | [diff] [blame] | 2054 | (mtu <= card->info.max_mtu)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2055 | case QETH_CARD_TYPE_OSN: |
| 2056 | case QETH_CARD_TYPE_UNKNOWN: |
| 2057 | default: |
| 2058 | return 1; |
| 2059 | } |
| 2060 | } |
| 2061 | |
| 2062 | static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply, |
| 2063 | unsigned long data) |
| 2064 | { |
| 2065 | |
| 2066 | __u16 mtu, framesize; |
| 2067 | __u16 len; |
| 2068 | __u8 link_type; |
| 2069 | struct qeth_cmd_buffer *iob; |
| 2070 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2071 | QETH_DBF_TEXT(SETUP, 2, "ulpenacb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2072 | |
| 2073 | iob = (struct qeth_cmd_buffer *) data; |
| 2074 | memcpy(&card->token.ulp_filter_r, |
| 2075 | QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data), |
| 2076 | QETH_MPC_TOKEN_LENGTH); |
Frank Blaschka | 9853b97 | 2011-02-02 06:04:32 +0000 | [diff] [blame] | 2077 | if (card->info.type == QETH_CARD_TYPE_IQD) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2078 | memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2); |
| 2079 | mtu = qeth_get_mtu_outof_framesize(framesize); |
| 2080 | if (!mtu) { |
| 2081 | iob->rc = -EINVAL; |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2082 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2083 | return 0; |
| 2084 | } |
Ursula Braun | 8b2e18f | 2011-02-02 06:04:33 +0000 | [diff] [blame] | 2085 | if (card->info.initial_mtu && (card->info.initial_mtu != mtu)) { |
| 2086 | /* frame size has changed */ |
| 2087 | if (card->dev && |
| 2088 | ((card->dev->mtu == card->info.initial_mtu) || |
| 2089 | (card->dev->mtu > mtu))) |
| 2090 | card->dev->mtu = mtu; |
| 2091 | qeth_free_qdio_buffers(card); |
| 2092 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2093 | card->info.initial_mtu = mtu; |
Ursula Braun | 8b2e18f | 2011-02-02 06:04:33 +0000 | [diff] [blame] | 2094 | card->info.max_mtu = mtu; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2095 | card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE; |
| 2096 | } else { |
| 2097 | card->info.initial_mtu = qeth_get_initial_mtu_for_card(card); |
Frank Blaschka | 9853b97 | 2011-02-02 06:04:32 +0000 | [diff] [blame] | 2098 | card->info.max_mtu = *(__u16 *)QETH_ULP_ENABLE_RESP_MAX_MTU( |
| 2099 | iob->data); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2100 | card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT; |
| 2101 | } |
| 2102 | |
| 2103 | memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2); |
| 2104 | if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) { |
| 2105 | memcpy(&link_type, |
| 2106 | QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1); |
| 2107 | card->info.link_type = link_type; |
| 2108 | } else |
| 2109 | card->info.link_type = 0; |
Ursula Braun | 01fc3e8 | 2010-06-21 22:57:12 +0000 | [diff] [blame] | 2110 | QETH_DBF_TEXT_(SETUP, 2, "link%d", card->info.link_type); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2111 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2112 | return 0; |
| 2113 | } |
| 2114 | |
| 2115 | static int qeth_ulp_enable(struct qeth_card *card) |
| 2116 | { |
| 2117 | int rc; |
| 2118 | char prot_type; |
| 2119 | struct qeth_cmd_buffer *iob; |
| 2120 | |
| 2121 | /*FIXME: trace view callbacks*/ |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2122 | QETH_DBF_TEXT(SETUP, 2, "ulpenabl"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2123 | |
| 2124 | iob = qeth_wait_for_buffer(&card->write); |
| 2125 | memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE); |
| 2126 | |
| 2127 | *(QETH_ULP_ENABLE_LINKNUM(iob->data)) = |
| 2128 | (__u8) card->info.portno; |
| 2129 | if (card->options.layer2) |
| 2130 | if (card->info.type == QETH_CARD_TYPE_OSN) |
| 2131 | prot_type = QETH_PROT_OSN2; |
| 2132 | else |
| 2133 | prot_type = QETH_PROT_LAYER2; |
| 2134 | else |
| 2135 | prot_type = QETH_PROT_TCPIP; |
| 2136 | |
| 2137 | memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1); |
| 2138 | memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data), |
| 2139 | &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); |
| 2140 | memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data), |
| 2141 | &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH); |
| 2142 | memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data), |
| 2143 | card->info.portname, 9); |
| 2144 | rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob, |
| 2145 | qeth_ulp_enable_cb, NULL); |
| 2146 | return rc; |
| 2147 | |
| 2148 | } |
| 2149 | |
| 2150 | static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply, |
| 2151 | unsigned long data) |
| 2152 | { |
| 2153 | struct qeth_cmd_buffer *iob; |
Ursula Braun | 65a1f89 | 2010-05-11 19:34:46 +0000 | [diff] [blame] | 2154 | int rc = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2155 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2156 | QETH_DBF_TEXT(SETUP, 2, "ulpstpcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2157 | |
| 2158 | iob = (struct qeth_cmd_buffer *) data; |
| 2159 | memcpy(&card->token.ulp_connection_r, |
| 2160 | QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), |
| 2161 | QETH_MPC_TOKEN_LENGTH); |
Ursula Braun | 65a1f89 | 2010-05-11 19:34:46 +0000 | [diff] [blame] | 2162 | if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), |
| 2163 | 3)) { |
| 2164 | QETH_DBF_TEXT(SETUP, 2, "olmlimit"); |
| 2165 | dev_err(&card->gdev->dev, "A connection could not be " |
| 2166 | "established because of an OLM limit\n"); |
Ursula Braun | bbb822a | 2010-07-22 23:15:08 +0000 | [diff] [blame] | 2167 | iob->rc = -EMLINK; |
Ursula Braun | 65a1f89 | 2010-05-11 19:34:46 +0000 | [diff] [blame] | 2168 | } |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2169 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
Ursula Braun | 65a1f89 | 2010-05-11 19:34:46 +0000 | [diff] [blame] | 2170 | return rc; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2171 | } |
| 2172 | |
| 2173 | static int qeth_ulp_setup(struct qeth_card *card) |
| 2174 | { |
| 2175 | int rc; |
| 2176 | __u16 temp; |
| 2177 | struct qeth_cmd_buffer *iob; |
| 2178 | struct ccw_dev_id dev_id; |
| 2179 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2180 | QETH_DBF_TEXT(SETUP, 2, "ulpsetup"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2181 | |
| 2182 | iob = qeth_wait_for_buffer(&card->write); |
| 2183 | memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE); |
| 2184 | |
| 2185 | memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data), |
| 2186 | &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); |
| 2187 | memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data), |
| 2188 | &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH); |
| 2189 | memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data), |
| 2190 | &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH); |
| 2191 | |
| 2192 | ccw_device_get_id(CARD_DDEV(card), &dev_id); |
| 2193 | memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2); |
| 2194 | temp = (card->info.cula << 8) + card->info.unit_addr2; |
| 2195 | memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2); |
| 2196 | rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob, |
| 2197 | qeth_ulp_setup_cb, NULL); |
| 2198 | return rc; |
| 2199 | } |
| 2200 | |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 2201 | static int qeth_init_qdio_out_buf(struct qeth_qdio_out_q *q, int bidx) |
| 2202 | { |
| 2203 | int rc; |
| 2204 | struct qeth_qdio_out_buffer *newbuf; |
| 2205 | |
| 2206 | rc = 0; |
| 2207 | newbuf = kmem_cache_zalloc(qeth_qdio_outbuf_cache, GFP_ATOMIC); |
| 2208 | if (!newbuf) { |
| 2209 | rc = -ENOMEM; |
| 2210 | goto out; |
| 2211 | } |
| 2212 | newbuf->buffer = &q->qdio_bufs[bidx]; |
| 2213 | skb_queue_head_init(&newbuf->skb_list); |
| 2214 | lockdep_set_class(&newbuf->skb_list.lock, &qdio_out_skb_queue_key); |
| 2215 | newbuf->q = q; |
| 2216 | newbuf->aob = NULL; |
| 2217 | newbuf->next_pending = q->bufs[bidx]; |
| 2218 | atomic_set(&newbuf->state, QETH_QDIO_BUF_EMPTY); |
| 2219 | q->bufs[bidx] = newbuf; |
| 2220 | if (q->bufstates) { |
| 2221 | q->bufstates[bidx].user = newbuf; |
| 2222 | QETH_CARD_TEXT_(q->card, 2, "nbs%d", bidx); |
| 2223 | QETH_CARD_TEXT_(q->card, 2, "%lx", (long) newbuf); |
| 2224 | QETH_CARD_TEXT_(q->card, 2, "%lx", |
| 2225 | (long) newbuf->next_pending); |
| 2226 | } |
| 2227 | out: |
| 2228 | return rc; |
| 2229 | } |
| 2230 | |
| 2231 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2232 | static int qeth_alloc_qdio_buffers(struct qeth_card *card) |
| 2233 | { |
| 2234 | int i, j; |
| 2235 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2236 | QETH_DBF_TEXT(SETUP, 2, "allcqdbf"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2237 | |
| 2238 | if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED, |
| 2239 | QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED) |
| 2240 | return 0; |
| 2241 | |
| 2242 | card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q), |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 2243 | GFP_KERNEL); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2244 | if (!card->qdio.in_q) |
| 2245 | goto out_nomem; |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2246 | QETH_DBF_TEXT(SETUP, 2, "inq"); |
| 2247 | QETH_DBF_HEX(SETUP, 2, &card->qdio.in_q, sizeof(void *)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2248 | memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q)); |
| 2249 | /* give inbound qeth_qdio_buffers their qdio_buffers */ |
| 2250 | for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) |
| 2251 | card->qdio.in_q->bufs[i].buffer = |
| 2252 | &card->qdio.in_q->qdio_bufs[i]; |
| 2253 | /* inbound buffer pool */ |
| 2254 | if (qeth_alloc_buffer_pool(card)) |
| 2255 | goto out_freeinq; |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 2256 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2257 | /* outbound */ |
| 2258 | card->qdio.out_qs = |
| 2259 | kmalloc(card->qdio.no_out_queues * |
| 2260 | sizeof(struct qeth_qdio_out_q *), GFP_KERNEL); |
| 2261 | if (!card->qdio.out_qs) |
| 2262 | goto out_freepool; |
| 2263 | for (i = 0; i < card->qdio.no_out_queues; ++i) { |
| 2264 | card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q), |
Ursula Braun | 508b3c4 | 2008-04-01 10:26:54 +0200 | [diff] [blame] | 2265 | GFP_KERNEL); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2266 | if (!card->qdio.out_qs[i]) |
| 2267 | goto out_freeoutq; |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2268 | QETH_DBF_TEXT_(SETUP, 2, "outq %i", i); |
| 2269 | QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2270 | memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q)); |
| 2271 | card->qdio.out_qs[i]->queue_no = i; |
| 2272 | /* give outbound qeth_qdio_buffers their qdio_buffers */ |
| 2273 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 2274 | BUG_ON(card->qdio.out_qs[i]->bufs[j] != NULL); |
| 2275 | if (qeth_init_qdio_out_buf(card->qdio.out_qs[i], j)) |
| 2276 | goto out_freeoutqbufs; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2277 | } |
| 2278 | } |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 2279 | |
| 2280 | /* completion */ |
| 2281 | if (qeth_alloc_cq(card)) |
| 2282 | goto out_freeoutq; |
| 2283 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2284 | return 0; |
| 2285 | |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 2286 | out_freeoutqbufs: |
| 2287 | while (j > 0) { |
| 2288 | --j; |
| 2289 | kmem_cache_free(qeth_qdio_outbuf_cache, |
| 2290 | card->qdio.out_qs[i]->bufs[j]); |
| 2291 | card->qdio.out_qs[i]->bufs[j] = NULL; |
| 2292 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2293 | out_freeoutq: |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 2294 | while (i > 0) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2295 | kfree(card->qdio.out_qs[--i]); |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 2296 | qeth_clear_outq_buffers(card->qdio.out_qs[i], 1); |
| 2297 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2298 | kfree(card->qdio.out_qs); |
| 2299 | card->qdio.out_qs = NULL; |
| 2300 | out_freepool: |
| 2301 | qeth_free_buffer_pool(card); |
| 2302 | out_freeinq: |
| 2303 | kfree(card->qdio.in_q); |
| 2304 | card->qdio.in_q = NULL; |
| 2305 | out_nomem: |
| 2306 | atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); |
| 2307 | return -ENOMEM; |
| 2308 | } |
| 2309 | |
| 2310 | static void qeth_create_qib_param_field(struct qeth_card *card, |
| 2311 | char *param_field) |
| 2312 | { |
| 2313 | |
| 2314 | param_field[0] = _ascebc['P']; |
| 2315 | param_field[1] = _ascebc['C']; |
| 2316 | param_field[2] = _ascebc['I']; |
| 2317 | param_field[3] = _ascebc['T']; |
| 2318 | *((unsigned int *) (¶m_field[4])) = QETH_PCI_THRESHOLD_A(card); |
| 2319 | *((unsigned int *) (¶m_field[8])) = QETH_PCI_THRESHOLD_B(card); |
| 2320 | *((unsigned int *) (¶m_field[12])) = QETH_PCI_TIMER_VALUE(card); |
| 2321 | } |
| 2322 | |
| 2323 | static void qeth_create_qib_param_field_blkt(struct qeth_card *card, |
| 2324 | char *param_field) |
| 2325 | { |
| 2326 | param_field[16] = _ascebc['B']; |
| 2327 | param_field[17] = _ascebc['L']; |
| 2328 | param_field[18] = _ascebc['K']; |
| 2329 | param_field[19] = _ascebc['T']; |
| 2330 | *((unsigned int *) (¶m_field[20])) = card->info.blkt.time_total; |
| 2331 | *((unsigned int *) (¶m_field[24])) = card->info.blkt.inter_packet; |
| 2332 | *((unsigned int *) (¶m_field[28])) = |
| 2333 | card->info.blkt.inter_packet_jumbo; |
| 2334 | } |
| 2335 | |
| 2336 | static int qeth_qdio_activate(struct qeth_card *card) |
| 2337 | { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2338 | QETH_DBF_TEXT(SETUP, 3, "qdioact"); |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2339 | return qdio_activate(CARD_DDEV(card)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2340 | } |
| 2341 | |
| 2342 | static int qeth_dm_act(struct qeth_card *card) |
| 2343 | { |
| 2344 | int rc; |
| 2345 | struct qeth_cmd_buffer *iob; |
| 2346 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2347 | QETH_DBF_TEXT(SETUP, 2, "dmact"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2348 | |
| 2349 | iob = qeth_wait_for_buffer(&card->write); |
| 2350 | memcpy(iob->data, DM_ACT, DM_ACT_SIZE); |
| 2351 | |
| 2352 | memcpy(QETH_DM_ACT_DEST_ADDR(iob->data), |
| 2353 | &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); |
| 2354 | memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data), |
| 2355 | &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); |
| 2356 | rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL); |
| 2357 | return rc; |
| 2358 | } |
| 2359 | |
| 2360 | static int qeth_mpc_initialize(struct qeth_card *card) |
| 2361 | { |
| 2362 | int rc; |
| 2363 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2364 | QETH_DBF_TEXT(SETUP, 2, "mpcinit"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2365 | |
| 2366 | rc = qeth_issue_next_read(card); |
| 2367 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2368 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2369 | return rc; |
| 2370 | } |
| 2371 | rc = qeth_cm_enable(card); |
| 2372 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2373 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2374 | goto out_qdio; |
| 2375 | } |
| 2376 | rc = qeth_cm_setup(card); |
| 2377 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2378 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2379 | goto out_qdio; |
| 2380 | } |
| 2381 | rc = qeth_ulp_enable(card); |
| 2382 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2383 | QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2384 | goto out_qdio; |
| 2385 | } |
| 2386 | rc = qeth_ulp_setup(card); |
| 2387 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2388 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2389 | goto out_qdio; |
| 2390 | } |
| 2391 | rc = qeth_alloc_qdio_buffers(card); |
| 2392 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2393 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2394 | goto out_qdio; |
| 2395 | } |
| 2396 | rc = qeth_qdio_establish(card); |
| 2397 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2398 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2399 | qeth_free_qdio_buffers(card); |
| 2400 | goto out_qdio; |
| 2401 | } |
| 2402 | rc = qeth_qdio_activate(card); |
| 2403 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2404 | QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2405 | goto out_qdio; |
| 2406 | } |
| 2407 | rc = qeth_dm_act(card); |
| 2408 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2409 | QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2410 | goto out_qdio; |
| 2411 | } |
| 2412 | |
| 2413 | return 0; |
| 2414 | out_qdio: |
| 2415 | qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD); |
| 2416 | return rc; |
| 2417 | } |
| 2418 | |
| 2419 | static void qeth_print_status_with_portname(struct qeth_card *card) |
| 2420 | { |
| 2421 | char dbf_text[15]; |
| 2422 | int i; |
| 2423 | |
| 2424 | sprintf(dbf_text, "%s", card->info.portname + 1); |
| 2425 | for (i = 0; i < 8; i++) |
| 2426 | dbf_text[i] = |
| 2427 | (char) _ebcasc[(__u8) dbf_text[i]]; |
| 2428 | dbf_text[8] = 0; |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 2429 | dev_info(&card->gdev->dev, "Device is a%s card%s%s%s\n" |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2430 | "with link type %s (portname: %s)\n", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2431 | qeth_get_cardname(card), |
| 2432 | (card->info.mcl_level[0]) ? " (level: " : "", |
| 2433 | (card->info.mcl_level[0]) ? card->info.mcl_level : "", |
| 2434 | (card->info.mcl_level[0]) ? ")" : "", |
| 2435 | qeth_get_cardname_short(card), |
| 2436 | dbf_text); |
| 2437 | |
| 2438 | } |
| 2439 | |
| 2440 | static void qeth_print_status_no_portname(struct qeth_card *card) |
| 2441 | { |
| 2442 | if (card->info.portname[0]) |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 2443 | dev_info(&card->gdev->dev, "Device is a%s " |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2444 | "card%s%s%s\nwith link type %s " |
| 2445 | "(no portname needed by interface).\n", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2446 | qeth_get_cardname(card), |
| 2447 | (card->info.mcl_level[0]) ? " (level: " : "", |
| 2448 | (card->info.mcl_level[0]) ? card->info.mcl_level : "", |
| 2449 | (card->info.mcl_level[0]) ? ")" : "", |
| 2450 | qeth_get_cardname_short(card)); |
| 2451 | else |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 2452 | dev_info(&card->gdev->dev, "Device is a%s " |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2453 | "card%s%s%s\nwith link type %s.\n", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2454 | qeth_get_cardname(card), |
| 2455 | (card->info.mcl_level[0]) ? " (level: " : "", |
| 2456 | (card->info.mcl_level[0]) ? card->info.mcl_level : "", |
| 2457 | (card->info.mcl_level[0]) ? ")" : "", |
| 2458 | qeth_get_cardname_short(card)); |
| 2459 | } |
| 2460 | |
| 2461 | void qeth_print_status_message(struct qeth_card *card) |
| 2462 | { |
| 2463 | switch (card->info.type) { |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 2464 | case QETH_CARD_TYPE_OSD: |
| 2465 | case QETH_CARD_TYPE_OSM: |
| 2466 | case QETH_CARD_TYPE_OSX: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2467 | /* VM will use a non-zero first character |
| 2468 | * to indicate a HiperSockets like reporting |
| 2469 | * of the level OSA sets the first character to zero |
| 2470 | * */ |
| 2471 | if (!card->info.mcl_level[0]) { |
| 2472 | sprintf(card->info.mcl_level, "%02x%02x", |
| 2473 | card->info.mcl_level[2], |
| 2474 | card->info.mcl_level[3]); |
| 2475 | |
| 2476 | card->info.mcl_level[QETH_MCL_LENGTH] = 0; |
| 2477 | break; |
| 2478 | } |
| 2479 | /* fallthrough */ |
| 2480 | case QETH_CARD_TYPE_IQD: |
Klaus-Dieter Wacker | 906f1f0 | 2009-01-04 17:34:10 -0800 | [diff] [blame] | 2481 | if ((card->info.guestlan) || |
| 2482 | (card->info.mcl_level[0] & 0x80)) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2483 | card->info.mcl_level[0] = (char) _ebcasc[(__u8) |
| 2484 | card->info.mcl_level[0]]; |
| 2485 | card->info.mcl_level[1] = (char) _ebcasc[(__u8) |
| 2486 | card->info.mcl_level[1]]; |
| 2487 | card->info.mcl_level[2] = (char) _ebcasc[(__u8) |
| 2488 | card->info.mcl_level[2]]; |
| 2489 | card->info.mcl_level[3] = (char) _ebcasc[(__u8) |
| 2490 | card->info.mcl_level[3]]; |
| 2491 | card->info.mcl_level[QETH_MCL_LENGTH] = 0; |
| 2492 | } |
| 2493 | break; |
| 2494 | default: |
| 2495 | memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1); |
| 2496 | } |
| 2497 | if (card->info.portname_required) |
| 2498 | qeth_print_status_with_portname(card); |
| 2499 | else |
| 2500 | qeth_print_status_no_portname(card); |
| 2501 | } |
| 2502 | EXPORT_SYMBOL_GPL(qeth_print_status_message); |
| 2503 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2504 | static void qeth_initialize_working_pool_list(struct qeth_card *card) |
| 2505 | { |
| 2506 | struct qeth_buffer_pool_entry *entry; |
| 2507 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 2508 | QETH_CARD_TEXT(card, 5, "inwrklst"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2509 | |
| 2510 | list_for_each_entry(entry, |
| 2511 | &card->qdio.init_pool.entry_list, init_list) { |
| 2512 | qeth_put_buffer_pool_entry(card, entry); |
| 2513 | } |
| 2514 | } |
| 2515 | |
| 2516 | static inline struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry( |
| 2517 | struct qeth_card *card) |
| 2518 | { |
| 2519 | struct list_head *plh; |
| 2520 | struct qeth_buffer_pool_entry *entry; |
| 2521 | int i, free; |
| 2522 | struct page *page; |
| 2523 | |
| 2524 | if (list_empty(&card->qdio.in_buf_pool.entry_list)) |
| 2525 | return NULL; |
| 2526 | |
| 2527 | list_for_each(plh, &card->qdio.in_buf_pool.entry_list) { |
| 2528 | entry = list_entry(plh, struct qeth_buffer_pool_entry, list); |
| 2529 | free = 1; |
| 2530 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { |
| 2531 | if (page_count(virt_to_page(entry->elements[i])) > 1) { |
| 2532 | free = 0; |
| 2533 | break; |
| 2534 | } |
| 2535 | } |
| 2536 | if (free) { |
| 2537 | list_del_init(&entry->list); |
| 2538 | return entry; |
| 2539 | } |
| 2540 | } |
| 2541 | |
| 2542 | /* no free buffer in pool so take first one and swap pages */ |
| 2543 | entry = list_entry(card->qdio.in_buf_pool.entry_list.next, |
| 2544 | struct qeth_buffer_pool_entry, list); |
| 2545 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { |
| 2546 | if (page_count(virt_to_page(entry->elements[i])) > 1) { |
Ursula Braun | 508b3c4 | 2008-04-01 10:26:54 +0200 | [diff] [blame] | 2547 | page = alloc_page(GFP_ATOMIC); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2548 | if (!page) { |
| 2549 | return NULL; |
| 2550 | } else { |
| 2551 | free_page((unsigned long)entry->elements[i]); |
| 2552 | entry->elements[i] = page_address(page); |
| 2553 | if (card->options.performance_stats) |
| 2554 | card->perf_stats.sg_alloc_page_rx++; |
| 2555 | } |
| 2556 | } |
| 2557 | } |
| 2558 | list_del_init(&entry->list); |
| 2559 | return entry; |
| 2560 | } |
| 2561 | |
| 2562 | static int qeth_init_input_buffer(struct qeth_card *card, |
| 2563 | struct qeth_qdio_buffer *buf) |
| 2564 | { |
| 2565 | struct qeth_buffer_pool_entry *pool_entry; |
| 2566 | int i; |
| 2567 | |
| 2568 | pool_entry = qeth_find_free_buffer_pool_entry(card); |
| 2569 | if (!pool_entry) |
| 2570 | return 1; |
| 2571 | |
| 2572 | /* |
| 2573 | * since the buffer is accessed only from the input_tasklet |
| 2574 | * there shouldn't be a need to synchronize; also, since we use |
| 2575 | * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off |
| 2576 | * buffers |
| 2577 | */ |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2578 | |
| 2579 | buf->pool_entry = pool_entry; |
| 2580 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { |
| 2581 | buf->buffer->element[i].length = PAGE_SIZE; |
| 2582 | buf->buffer->element[i].addr = pool_entry->elements[i]; |
| 2583 | if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1) |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 2584 | buf->buffer->element[i].eflags = SBAL_EFLAGS_LAST_ENTRY; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2585 | else |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 2586 | buf->buffer->element[i].eflags = 0; |
| 2587 | buf->buffer->element[i].sflags = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2588 | } |
| 2589 | return 0; |
| 2590 | } |
| 2591 | |
| 2592 | int qeth_init_qdio_queues(struct qeth_card *card) |
| 2593 | { |
| 2594 | int i, j; |
| 2595 | int rc; |
| 2596 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2597 | QETH_DBF_TEXT(SETUP, 2, "initqdqs"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2598 | |
| 2599 | /* inbound queue */ |
| 2600 | memset(card->qdio.in_q->qdio_bufs, 0, |
| 2601 | QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer)); |
| 2602 | qeth_initialize_working_pool_list(card); |
| 2603 | /*give only as many buffers to hardware as we have buffer pool entries*/ |
| 2604 | for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i) |
| 2605 | qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]); |
| 2606 | card->qdio.in_q->next_buf_to_init = |
| 2607 | card->qdio.in_buf_pool.buf_count - 1; |
| 2608 | rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0, |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2609 | card->qdio.in_buf_pool.buf_count - 1); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2610 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2611 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2612 | return rc; |
| 2613 | } |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 2614 | |
| 2615 | /* completion */ |
| 2616 | rc = qeth_cq_init(card); |
| 2617 | if (rc) { |
| 2618 | return rc; |
| 2619 | } |
| 2620 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2621 | /* outbound queue */ |
| 2622 | for (i = 0; i < card->qdio.no_out_queues; ++i) { |
| 2623 | memset(card->qdio.out_qs[i]->qdio_bufs, 0, |
| 2624 | QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer)); |
| 2625 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { |
| 2626 | qeth_clear_output_buffer(card->qdio.out_qs[i], |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 2627 | card->qdio.out_qs[i]->bufs[j], |
| 2628 | QETH_QDIO_BUF_EMPTY); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2629 | } |
| 2630 | card->qdio.out_qs[i]->card = card; |
| 2631 | card->qdio.out_qs[i]->next_buf_to_fill = 0; |
| 2632 | card->qdio.out_qs[i]->do_pack = 0; |
| 2633 | atomic_set(&card->qdio.out_qs[i]->used_buffers, 0); |
| 2634 | atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0); |
| 2635 | atomic_set(&card->qdio.out_qs[i]->state, |
| 2636 | QETH_OUT_Q_UNLOCKED); |
| 2637 | } |
| 2638 | return 0; |
| 2639 | } |
| 2640 | EXPORT_SYMBOL_GPL(qeth_init_qdio_queues); |
| 2641 | |
| 2642 | static inline __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type) |
| 2643 | { |
| 2644 | switch (link_type) { |
| 2645 | case QETH_LINK_TYPE_HSTR: |
| 2646 | return 2; |
| 2647 | default: |
| 2648 | return 1; |
| 2649 | } |
| 2650 | } |
| 2651 | |
| 2652 | static void qeth_fill_ipacmd_header(struct qeth_card *card, |
| 2653 | struct qeth_ipa_cmd *cmd, __u8 command, |
| 2654 | enum qeth_prot_versions prot) |
| 2655 | { |
| 2656 | memset(cmd, 0, sizeof(struct qeth_ipa_cmd)); |
| 2657 | cmd->hdr.command = command; |
| 2658 | cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST; |
| 2659 | cmd->hdr.seqno = card->seqno.ipa; |
| 2660 | cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type); |
| 2661 | cmd->hdr.rel_adapter_no = (__u8) card->info.portno; |
| 2662 | if (card->options.layer2) |
| 2663 | cmd->hdr.prim_version_no = 2; |
| 2664 | else |
| 2665 | cmd->hdr.prim_version_no = 1; |
| 2666 | cmd->hdr.param_count = 1; |
| 2667 | cmd->hdr.prot_version = prot; |
| 2668 | cmd->hdr.ipa_supported = 0; |
| 2669 | cmd->hdr.ipa_enabled = 0; |
| 2670 | } |
| 2671 | |
| 2672 | struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card, |
| 2673 | enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot) |
| 2674 | { |
| 2675 | struct qeth_cmd_buffer *iob; |
| 2676 | struct qeth_ipa_cmd *cmd; |
| 2677 | |
| 2678 | iob = qeth_wait_for_buffer(&card->write); |
| 2679 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| 2680 | qeth_fill_ipacmd_header(card, cmd, ipacmd, prot); |
| 2681 | |
| 2682 | return iob; |
| 2683 | } |
| 2684 | EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer); |
| 2685 | |
| 2686 | void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, |
| 2687 | char prot_type) |
| 2688 | { |
| 2689 | memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); |
| 2690 | memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1); |
| 2691 | memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), |
| 2692 | &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); |
| 2693 | } |
| 2694 | EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd); |
| 2695 | |
| 2696 | int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, |
| 2697 | int (*reply_cb)(struct qeth_card *, struct qeth_reply*, |
| 2698 | unsigned long), |
| 2699 | void *reply_param) |
| 2700 | { |
| 2701 | int rc; |
| 2702 | char prot_type; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2703 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 2704 | QETH_CARD_TEXT(card, 4, "sendipa"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2705 | |
| 2706 | if (card->options.layer2) |
| 2707 | if (card->info.type == QETH_CARD_TYPE_OSN) |
| 2708 | prot_type = QETH_PROT_OSN2; |
| 2709 | else |
| 2710 | prot_type = QETH_PROT_LAYER2; |
| 2711 | else |
| 2712 | prot_type = QETH_PROT_TCPIP; |
| 2713 | qeth_prepare_ipa_cmd(card, iob, prot_type); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2714 | rc = qeth_send_control_data(card, IPA_CMD_LENGTH, |
| 2715 | iob, reply_cb, reply_param); |
Ursula Braun | 908abbb | 2010-07-22 23:15:06 +0000 | [diff] [blame] | 2716 | if (rc == -ETIME) { |
| 2717 | qeth_clear_ipacmd_list(card); |
| 2718 | qeth_schedule_recovery(card); |
| 2719 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2720 | return rc; |
| 2721 | } |
| 2722 | EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd); |
| 2723 | |
Ursula Braun | 70919e2 | 2011-02-26 22:41:36 -0800 | [diff] [blame] | 2724 | int qeth_send_startlan(struct qeth_card *card) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2725 | { |
| 2726 | int rc; |
| 2727 | struct qeth_cmd_buffer *iob; |
| 2728 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2729 | QETH_DBF_TEXT(SETUP, 2, "strtlan"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2730 | |
Ursula Braun | 70919e2 | 2011-02-26 22:41:36 -0800 | [diff] [blame] | 2731 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_STARTLAN, 0); |
| 2732 | rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2733 | return rc; |
| 2734 | } |
| 2735 | EXPORT_SYMBOL_GPL(qeth_send_startlan); |
| 2736 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2737 | int qeth_default_setadapterparms_cb(struct qeth_card *card, |
| 2738 | struct qeth_reply *reply, unsigned long data) |
| 2739 | { |
| 2740 | struct qeth_ipa_cmd *cmd; |
| 2741 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 2742 | QETH_CARD_TEXT(card, 4, "defadpcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2743 | |
| 2744 | cmd = (struct qeth_ipa_cmd *) data; |
| 2745 | if (cmd->hdr.return_code == 0) |
| 2746 | cmd->hdr.return_code = |
| 2747 | cmd->data.setadapterparms.hdr.return_code; |
| 2748 | return 0; |
| 2749 | } |
| 2750 | EXPORT_SYMBOL_GPL(qeth_default_setadapterparms_cb); |
| 2751 | |
| 2752 | static int qeth_query_setadapterparms_cb(struct qeth_card *card, |
| 2753 | struct qeth_reply *reply, unsigned long data) |
| 2754 | { |
| 2755 | struct qeth_ipa_cmd *cmd; |
| 2756 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 2757 | QETH_CARD_TEXT(card, 3, "quyadpcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2758 | |
| 2759 | cmd = (struct qeth_ipa_cmd *) data; |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 2760 | if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2761 | card->info.link_type = |
| 2762 | cmd->data.setadapterparms.data.query_cmds_supp.lan_type; |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 2763 | QETH_DBF_TEXT_(SETUP, 2, "lnk %d", card->info.link_type); |
| 2764 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2765 | card->options.adp.supported_funcs = |
| 2766 | cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds; |
| 2767 | return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd); |
| 2768 | } |
| 2769 | |
| 2770 | struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card, |
| 2771 | __u32 command, __u32 cmdlen) |
| 2772 | { |
| 2773 | struct qeth_cmd_buffer *iob; |
| 2774 | struct qeth_ipa_cmd *cmd; |
| 2775 | |
| 2776 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS, |
| 2777 | QETH_PROT_IPV4); |
| 2778 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| 2779 | cmd->data.setadapterparms.hdr.cmdlength = cmdlen; |
| 2780 | cmd->data.setadapterparms.hdr.command_code = command; |
| 2781 | cmd->data.setadapterparms.hdr.used_total = 1; |
| 2782 | cmd->data.setadapterparms.hdr.seq_no = 1; |
| 2783 | |
| 2784 | return iob; |
| 2785 | } |
| 2786 | EXPORT_SYMBOL_GPL(qeth_get_adapter_cmd); |
| 2787 | |
| 2788 | int qeth_query_setadapterparms(struct qeth_card *card) |
| 2789 | { |
| 2790 | int rc; |
| 2791 | struct qeth_cmd_buffer *iob; |
| 2792 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 2793 | QETH_CARD_TEXT(card, 3, "queryadp"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2794 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED, |
| 2795 | sizeof(struct qeth_ipacmd_setadpparms)); |
| 2796 | rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL); |
| 2797 | return rc; |
| 2798 | } |
| 2799 | EXPORT_SYMBOL_GPL(qeth_query_setadapterparms); |
| 2800 | |
Frank Blaschka | 1da74b1 | 2011-05-12 18:45:02 +0000 | [diff] [blame] | 2801 | static int qeth_query_ipassists_cb(struct qeth_card *card, |
| 2802 | struct qeth_reply *reply, unsigned long data) |
| 2803 | { |
| 2804 | struct qeth_ipa_cmd *cmd; |
| 2805 | |
| 2806 | QETH_DBF_TEXT(SETUP, 2, "qipasscb"); |
| 2807 | |
| 2808 | cmd = (struct qeth_ipa_cmd *) data; |
| 2809 | if (cmd->hdr.prot_version == QETH_PROT_IPV4) { |
| 2810 | card->options.ipa4.supported_funcs = cmd->hdr.ipa_supported; |
| 2811 | card->options.ipa4.enabled_funcs = cmd->hdr.ipa_enabled; |
| 2812 | } else { |
| 2813 | card->options.ipa6.supported_funcs = cmd->hdr.ipa_supported; |
| 2814 | card->options.ipa6.enabled_funcs = cmd->hdr.ipa_enabled; |
| 2815 | } |
| 2816 | QETH_DBF_TEXT(SETUP, 2, "suppenbl"); |
| 2817 | QETH_DBF_TEXT_(SETUP, 2, "%x", cmd->hdr.ipa_supported); |
| 2818 | QETH_DBF_TEXT_(SETUP, 2, "%x", cmd->hdr.ipa_enabled); |
| 2819 | return 0; |
| 2820 | } |
| 2821 | |
| 2822 | int qeth_query_ipassists(struct qeth_card *card, enum qeth_prot_versions prot) |
| 2823 | { |
| 2824 | int rc; |
| 2825 | struct qeth_cmd_buffer *iob; |
| 2826 | |
| 2827 | QETH_DBF_TEXT_(SETUP, 2, "qipassi%i", prot); |
| 2828 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_QIPASSIST, prot); |
| 2829 | rc = qeth_send_ipa_cmd(card, iob, qeth_query_ipassists_cb, NULL); |
| 2830 | return rc; |
| 2831 | } |
| 2832 | EXPORT_SYMBOL_GPL(qeth_query_ipassists); |
| 2833 | |
| 2834 | static int qeth_query_setdiagass_cb(struct qeth_card *card, |
| 2835 | struct qeth_reply *reply, unsigned long data) |
| 2836 | { |
| 2837 | struct qeth_ipa_cmd *cmd; |
| 2838 | __u16 rc; |
| 2839 | |
| 2840 | cmd = (struct qeth_ipa_cmd *)data; |
| 2841 | rc = cmd->hdr.return_code; |
| 2842 | if (rc) |
| 2843 | QETH_CARD_TEXT_(card, 2, "diagq:%x", rc); |
| 2844 | else |
| 2845 | card->info.diagass_support = cmd->data.diagass.ext; |
| 2846 | return 0; |
| 2847 | } |
| 2848 | |
| 2849 | static int qeth_query_setdiagass(struct qeth_card *card) |
| 2850 | { |
| 2851 | struct qeth_cmd_buffer *iob; |
| 2852 | struct qeth_ipa_cmd *cmd; |
| 2853 | |
| 2854 | QETH_DBF_TEXT(SETUP, 2, "qdiagass"); |
| 2855 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0); |
| 2856 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| 2857 | cmd->data.diagass.subcmd_len = 16; |
| 2858 | cmd->data.diagass.subcmd = QETH_DIAGS_CMD_QUERY; |
| 2859 | return qeth_send_ipa_cmd(card, iob, qeth_query_setdiagass_cb, NULL); |
| 2860 | } |
| 2861 | |
| 2862 | static void qeth_get_trap_id(struct qeth_card *card, struct qeth_trap_id *tid) |
| 2863 | { |
| 2864 | unsigned long info = get_zeroed_page(GFP_KERNEL); |
| 2865 | struct sysinfo_2_2_2 *info222 = (struct sysinfo_2_2_2 *)info; |
| 2866 | struct sysinfo_3_2_2 *info322 = (struct sysinfo_3_2_2 *)info; |
| 2867 | struct ccw_dev_id ccwid; |
| 2868 | int level, rc; |
| 2869 | |
| 2870 | tid->chpid = card->info.chpid; |
| 2871 | ccw_device_get_id(CARD_RDEV(card), &ccwid); |
| 2872 | tid->ssid = ccwid.ssid; |
| 2873 | tid->devno = ccwid.devno; |
| 2874 | if (!info) |
| 2875 | return; |
| 2876 | |
| 2877 | rc = stsi(NULL, 0, 0, 0); |
| 2878 | if (rc == -ENOSYS) |
| 2879 | level = rc; |
| 2880 | else |
| 2881 | level = (((unsigned int) rc) >> 28); |
| 2882 | |
| 2883 | if ((level >= 2) && (stsi(info222, 2, 2, 2) != -ENOSYS)) |
| 2884 | tid->lparnr = info222->lpar_number; |
| 2885 | |
| 2886 | if ((level >= 3) && (stsi(info322, 3, 2, 2) != -ENOSYS)) { |
| 2887 | EBCASC(info322->vm[0].name, sizeof(info322->vm[0].name)); |
| 2888 | memcpy(tid->vmname, info322->vm[0].name, sizeof(tid->vmname)); |
| 2889 | } |
| 2890 | free_page(info); |
| 2891 | return; |
| 2892 | } |
| 2893 | |
| 2894 | static int qeth_hw_trap_cb(struct qeth_card *card, |
| 2895 | struct qeth_reply *reply, unsigned long data) |
| 2896 | { |
| 2897 | struct qeth_ipa_cmd *cmd; |
| 2898 | __u16 rc; |
| 2899 | |
| 2900 | cmd = (struct qeth_ipa_cmd *)data; |
| 2901 | rc = cmd->hdr.return_code; |
| 2902 | if (rc) |
| 2903 | QETH_CARD_TEXT_(card, 2, "trapc:%x", rc); |
| 2904 | return 0; |
| 2905 | } |
| 2906 | |
| 2907 | int qeth_hw_trap(struct qeth_card *card, enum qeth_diags_trap_action action) |
| 2908 | { |
| 2909 | struct qeth_cmd_buffer *iob; |
| 2910 | struct qeth_ipa_cmd *cmd; |
| 2911 | |
| 2912 | QETH_DBF_TEXT(SETUP, 2, "diagtrap"); |
| 2913 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SET_DIAG_ASS, 0); |
| 2914 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| 2915 | cmd->data.diagass.subcmd_len = 80; |
| 2916 | cmd->data.diagass.subcmd = QETH_DIAGS_CMD_TRAP; |
| 2917 | cmd->data.diagass.type = 1; |
| 2918 | cmd->data.diagass.action = action; |
| 2919 | switch (action) { |
| 2920 | case QETH_DIAGS_TRAP_ARM: |
| 2921 | cmd->data.diagass.options = 0x0003; |
| 2922 | cmd->data.diagass.ext = 0x00010000 + |
| 2923 | sizeof(struct qeth_trap_id); |
| 2924 | qeth_get_trap_id(card, |
| 2925 | (struct qeth_trap_id *)cmd->data.diagass.cdata); |
| 2926 | break; |
| 2927 | case QETH_DIAGS_TRAP_DISARM: |
| 2928 | cmd->data.diagass.options = 0x0001; |
| 2929 | break; |
| 2930 | case QETH_DIAGS_TRAP_CAPTURE: |
| 2931 | break; |
| 2932 | } |
| 2933 | return qeth_send_ipa_cmd(card, iob, qeth_hw_trap_cb, NULL); |
| 2934 | } |
| 2935 | EXPORT_SYMBOL_GPL(qeth_hw_trap); |
| 2936 | |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 2937 | int qeth_check_qdio_errors(struct qeth_card *card, struct qdio_buffer *buf, |
| 2938 | unsigned int qdio_error, const char *dbftext) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2939 | { |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2940 | if (qdio_error) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 2941 | QETH_CARD_TEXT(card, 2, dbftext); |
Carsten Otte | 38593d0 | 2010-06-21 22:57:08 +0000 | [diff] [blame] | 2942 | QETH_CARD_TEXT_(card, 2, " F15=%02X", |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 2943 | buf->element[15].sflags); |
Carsten Otte | 38593d0 | 2010-06-21 22:57:08 +0000 | [diff] [blame] | 2944 | QETH_CARD_TEXT_(card, 2, " F14=%02X", |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 2945 | buf->element[14].sflags); |
Carsten Otte | 38593d0 | 2010-06-21 22:57:08 +0000 | [diff] [blame] | 2946 | QETH_CARD_TEXT_(card, 2, " qerr=%X", qdio_error); |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 2947 | if ((buf->element[15].sflags) == 0x12) { |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 2948 | card->stats.rx_dropped++; |
| 2949 | return 0; |
| 2950 | } else |
| 2951 | return 1; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2952 | } |
| 2953 | return 0; |
| 2954 | } |
| 2955 | EXPORT_SYMBOL_GPL(qeth_check_qdio_errors); |
| 2956 | |
| 2957 | void qeth_queue_input_buffer(struct qeth_card *card, int index) |
| 2958 | { |
| 2959 | struct qeth_qdio_q *queue = card->qdio.in_q; |
| 2960 | int count; |
| 2961 | int i; |
| 2962 | int rc; |
| 2963 | int newcount = 0; |
| 2964 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2965 | count = (index < queue->next_buf_to_init)? |
| 2966 | card->qdio.in_buf_pool.buf_count - |
| 2967 | (queue->next_buf_to_init - index) : |
| 2968 | card->qdio.in_buf_pool.buf_count - |
| 2969 | (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index); |
| 2970 | /* only requeue at a certain threshold to avoid SIGAs */ |
| 2971 | if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) { |
| 2972 | for (i = queue->next_buf_to_init; |
| 2973 | i < queue->next_buf_to_init + count; ++i) { |
| 2974 | if (qeth_init_input_buffer(card, |
| 2975 | &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) { |
| 2976 | break; |
| 2977 | } else { |
| 2978 | newcount++; |
| 2979 | } |
| 2980 | } |
| 2981 | |
| 2982 | if (newcount < count) { |
| 2983 | /* we are in memory shortage so we switch back to |
| 2984 | traditional skb allocation and drop packages */ |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2985 | atomic_set(&card->force_alloc_skb, 3); |
| 2986 | count = newcount; |
| 2987 | } else { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2988 | atomic_add_unless(&card->force_alloc_skb, -1, 0); |
| 2989 | } |
| 2990 | |
| 2991 | /* |
| 2992 | * according to old code it should be avoided to requeue all |
| 2993 | * 128 buffers in order to benefit from PCI avoidance. |
| 2994 | * this function keeps at least one buffer (the buffer at |
| 2995 | * 'index') un-requeued -> this buffer is the first buffer that |
| 2996 | * will be requeued the next time |
| 2997 | */ |
| 2998 | if (card->options.performance_stats) { |
| 2999 | card->perf_stats.inbound_do_qdio_cnt++; |
| 3000 | card->perf_stats.inbound_do_qdio_start_time = |
| 3001 | qeth_get_micros(); |
| 3002 | } |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 3003 | rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, |
| 3004 | queue->next_buf_to_init, count); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3005 | if (card->options.performance_stats) |
| 3006 | card->perf_stats.inbound_do_qdio_time += |
| 3007 | qeth_get_micros() - |
| 3008 | card->perf_stats.inbound_do_qdio_start_time; |
| 3009 | if (rc) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3010 | QETH_CARD_TEXT(card, 2, "qinberr"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3011 | } |
| 3012 | queue->next_buf_to_init = (queue->next_buf_to_init + count) % |
| 3013 | QDIO_MAX_BUFFERS_PER_Q; |
| 3014 | } |
| 3015 | } |
| 3016 | EXPORT_SYMBOL_GPL(qeth_queue_input_buffer); |
| 3017 | |
| 3018 | static int qeth_handle_send_error(struct qeth_card *card, |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 3019 | struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3020 | { |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 3021 | int sbalf15 = buffer->buffer->element[15].sflags; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3022 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3023 | QETH_CARD_TEXT(card, 6, "hdsnderr"); |
Klaus-Dieter Wacker | 58490f1 | 2009-08-26 02:01:06 +0000 | [diff] [blame] | 3024 | if (card->info.type == QETH_CARD_TYPE_IQD) { |
| 3025 | if (sbalf15 == 0) { |
| 3026 | qdio_err = 0; |
| 3027 | } else { |
| 3028 | qdio_err = 1; |
| 3029 | } |
| 3030 | } |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 3031 | qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qouterr"); |
Jan Glauber | d303b6f | 2009-03-26 15:24:31 +0100 | [diff] [blame] | 3032 | |
| 3033 | if (!qdio_err) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3034 | return QETH_SEND_ERROR_NONE; |
Jan Glauber | d303b6f | 2009-03-26 15:24:31 +0100 | [diff] [blame] | 3035 | |
| 3036 | if ((sbalf15 >= 15) && (sbalf15 <= 31)) |
| 3037 | return QETH_SEND_ERROR_RETRY; |
| 3038 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3039 | QETH_CARD_TEXT(card, 1, "lnkfail"); |
| 3040 | QETH_CARD_TEXT_(card, 1, "%04x %02x", |
Jan Glauber | d303b6f | 2009-03-26 15:24:31 +0100 | [diff] [blame] | 3041 | (u16)qdio_err, (u8)sbalf15); |
| 3042 | return QETH_SEND_ERROR_LINK_FAILURE; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3043 | } |
| 3044 | |
| 3045 | /* |
| 3046 | * Switched to packing state if the number of used buffers on a queue |
| 3047 | * reaches a certain limit. |
| 3048 | */ |
| 3049 | static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue) |
| 3050 | { |
| 3051 | if (!queue->do_pack) { |
| 3052 | if (atomic_read(&queue->used_buffers) |
| 3053 | >= QETH_HIGH_WATERMARK_PACK){ |
| 3054 | /* switch non-PACKING -> PACKING */ |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3055 | QETH_CARD_TEXT(queue->card, 6, "np->pack"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3056 | if (queue->card->options.performance_stats) |
| 3057 | queue->card->perf_stats.sc_dp_p++; |
| 3058 | queue->do_pack = 1; |
| 3059 | } |
| 3060 | } |
| 3061 | } |
| 3062 | |
| 3063 | /* |
| 3064 | * Switches from packing to non-packing mode. If there is a packing |
| 3065 | * buffer on the queue this buffer will be prepared to be flushed. |
| 3066 | * In that case 1 is returned to inform the caller. If no buffer |
| 3067 | * has to be flushed, zero is returned. |
| 3068 | */ |
| 3069 | static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue) |
| 3070 | { |
| 3071 | struct qeth_qdio_out_buffer *buffer; |
| 3072 | int flush_count = 0; |
| 3073 | |
| 3074 | if (queue->do_pack) { |
| 3075 | if (atomic_read(&queue->used_buffers) |
| 3076 | <= QETH_LOW_WATERMARK_PACK) { |
| 3077 | /* switch PACKING -> non-PACKING */ |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3078 | QETH_CARD_TEXT(queue->card, 6, "pack->np"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3079 | if (queue->card->options.performance_stats) |
| 3080 | queue->card->perf_stats.sc_p_dp++; |
| 3081 | queue->do_pack = 0; |
| 3082 | /* flush packing buffers */ |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 3083 | buffer = queue->bufs[queue->next_buf_to_fill]; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3084 | if ((atomic_read(&buffer->state) == |
| 3085 | QETH_QDIO_BUF_EMPTY) && |
| 3086 | (buffer->next_element_to_fill > 0)) { |
| 3087 | atomic_set(&buffer->state, |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 3088 | QETH_QDIO_BUF_PRIMED); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3089 | flush_count++; |
| 3090 | queue->next_buf_to_fill = |
| 3091 | (queue->next_buf_to_fill + 1) % |
| 3092 | QDIO_MAX_BUFFERS_PER_Q; |
| 3093 | } |
| 3094 | } |
| 3095 | } |
| 3096 | return flush_count; |
| 3097 | } |
| 3098 | |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 3099 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3100 | /* |
| 3101 | * Called to flush a packing buffer if no more pci flags are on the queue. |
| 3102 | * Checks if there is a packing buffer and prepares it to be flushed. |
| 3103 | * In that case returns 1, otherwise zero. |
| 3104 | */ |
| 3105 | static int qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue) |
| 3106 | { |
| 3107 | struct qeth_qdio_out_buffer *buffer; |
| 3108 | |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 3109 | buffer = queue->bufs[queue->next_buf_to_fill]; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3110 | if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) && |
| 3111 | (buffer->next_element_to_fill > 0)) { |
| 3112 | /* it's a packing buffer */ |
| 3113 | atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); |
| 3114 | queue->next_buf_to_fill = |
| 3115 | (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q; |
| 3116 | return 1; |
| 3117 | } |
| 3118 | return 0; |
| 3119 | } |
| 3120 | |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 3121 | static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index, |
| 3122 | int count) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3123 | { |
| 3124 | struct qeth_qdio_out_buffer *buf; |
| 3125 | int rc; |
| 3126 | int i; |
| 3127 | unsigned int qdio_flags; |
| 3128 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3129 | for (i = index; i < index + count; ++i) { |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 3130 | int bidx = i % QDIO_MAX_BUFFERS_PER_Q; |
| 3131 | buf = queue->bufs[bidx]; |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 3132 | buf->buffer->element[buf->next_element_to_fill - 1].eflags |= |
| 3133 | SBAL_EFLAGS_LAST_ENTRY; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3134 | |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 3135 | if (queue->bufstates) |
| 3136 | queue->bufstates[bidx].user = buf; |
| 3137 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3138 | if (queue->card->info.type == QETH_CARD_TYPE_IQD) |
| 3139 | continue; |
| 3140 | |
| 3141 | if (!queue->do_pack) { |
| 3142 | if ((atomic_read(&queue->used_buffers) >= |
| 3143 | (QETH_HIGH_WATERMARK_PACK - |
| 3144 | QETH_WATERMARK_PACK_FUZZ)) && |
| 3145 | !atomic_read(&queue->set_pci_flags_count)) { |
| 3146 | /* it's likely that we'll go to packing |
| 3147 | * mode soon */ |
| 3148 | atomic_inc(&queue->set_pci_flags_count); |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 3149 | buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3150 | } |
| 3151 | } else { |
| 3152 | if (!atomic_read(&queue->set_pci_flags_count)) { |
| 3153 | /* |
| 3154 | * there's no outstanding PCI any more, so we |
| 3155 | * have to request a PCI to be sure the the PCI |
| 3156 | * will wake at some time in the future then we |
| 3157 | * can flush packed buffers that might still be |
| 3158 | * hanging around, which can happen if no |
| 3159 | * further send was requested by the stack |
| 3160 | */ |
| 3161 | atomic_inc(&queue->set_pci_flags_count); |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 3162 | buf->buffer->element[0].sflags |= SBAL_SFLAGS0_PCI_REQ; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3163 | } |
| 3164 | } |
| 3165 | } |
| 3166 | |
| 3167 | queue->card->dev->trans_start = jiffies; |
| 3168 | if (queue->card->options.performance_stats) { |
| 3169 | queue->card->perf_stats.outbound_do_qdio_cnt++; |
| 3170 | queue->card->perf_stats.outbound_do_qdio_start_time = |
| 3171 | qeth_get_micros(); |
| 3172 | } |
| 3173 | qdio_flags = QDIO_FLAG_SYNC_OUTPUT; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3174 | if (atomic_read(&queue->set_pci_flags_count)) |
| 3175 | qdio_flags |= QDIO_FLAG_PCI_OUT; |
| 3176 | rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags, |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 3177 | queue->queue_no, index, count); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3178 | if (queue->card->options.performance_stats) |
| 3179 | queue->card->perf_stats.outbound_do_qdio_time += |
| 3180 | qeth_get_micros() - |
| 3181 | queue->card->perf_stats.outbound_do_qdio_start_time; |
Jan Glauber | aa3a41d | 2011-01-05 12:47:59 +0100 | [diff] [blame] | 3182 | atomic_add(count, &queue->used_buffers); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3183 | if (rc) { |
Jan Glauber | d303b6f | 2009-03-26 15:24:31 +0100 | [diff] [blame] | 3184 | queue->card->stats.tx_errors += count; |
| 3185 | /* ignore temporary SIGA errors without busy condition */ |
| 3186 | if (rc == QDIO_ERROR_SIGA_TARGET) |
| 3187 | return; |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3188 | QETH_CARD_TEXT(queue->card, 2, "flushbuf"); |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 3189 | QETH_CARD_TEXT_(queue->card, 2, " q%d", queue->queue_no); |
| 3190 | QETH_CARD_TEXT_(queue->card, 2, " idx%d", index); |
| 3191 | QETH_CARD_TEXT_(queue->card, 2, " c%d", count); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3192 | QETH_CARD_TEXT_(queue->card, 2, " err%d", rc); |
Jan Glauber | d303b6f | 2009-03-26 15:24:31 +0100 | [diff] [blame] | 3193 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3194 | /* this must not happen under normal circumstances. if it |
| 3195 | * happens something is really wrong -> recover */ |
| 3196 | qeth_schedule_recovery(queue->card); |
| 3197 | return; |
| 3198 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3199 | if (queue->card->options.performance_stats) |
| 3200 | queue->card->perf_stats.bufs_sent += count; |
| 3201 | } |
| 3202 | |
| 3203 | static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue) |
| 3204 | { |
| 3205 | int index; |
| 3206 | int flush_cnt = 0; |
| 3207 | int q_was_packing = 0; |
| 3208 | |
| 3209 | /* |
| 3210 | * check if weed have to switch to non-packing mode or if |
| 3211 | * we have to get a pci flag out on the queue |
| 3212 | */ |
| 3213 | if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) || |
| 3214 | !atomic_read(&queue->set_pci_flags_count)) { |
| 3215 | if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) == |
| 3216 | QETH_OUT_Q_UNLOCKED) { |
| 3217 | /* |
| 3218 | * If we get in here, there was no action in |
| 3219 | * do_send_packet. So, we check if there is a |
| 3220 | * packing buffer to be flushed here. |
| 3221 | */ |
| 3222 | netif_stop_queue(queue->card->dev); |
| 3223 | index = queue->next_buf_to_fill; |
| 3224 | q_was_packing = queue->do_pack; |
| 3225 | /* queue->do_pack may change */ |
| 3226 | barrier(); |
| 3227 | flush_cnt += qeth_switch_to_nonpacking_if_needed(queue); |
| 3228 | if (!flush_cnt && |
| 3229 | !atomic_read(&queue->set_pci_flags_count)) |
| 3230 | flush_cnt += |
| 3231 | qeth_flush_buffers_on_no_pci(queue); |
| 3232 | if (queue->card->options.performance_stats && |
| 3233 | q_was_packing) |
| 3234 | queue->card->perf_stats.bufs_sent_pack += |
| 3235 | flush_cnt; |
| 3236 | if (flush_cnt) |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 3237 | qeth_flush_buffers(queue, index, flush_cnt); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3238 | atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); |
| 3239 | } |
| 3240 | } |
| 3241 | } |
| 3242 | |
Frank Blaschka | a1c3ed4 | 2010-09-07 21:14:42 +0000 | [diff] [blame] | 3243 | void qeth_qdio_start_poll(struct ccw_device *ccwdev, int queue, |
| 3244 | unsigned long card_ptr) |
| 3245 | { |
| 3246 | struct qeth_card *card = (struct qeth_card *)card_ptr; |
| 3247 | |
Frank Blaschka | 0cffef4 | 2010-11-08 03:03:49 +0000 | [diff] [blame] | 3248 | if (card->dev && (card->dev->flags & IFF_UP)) |
Frank Blaschka | a1c3ed4 | 2010-09-07 21:14:42 +0000 | [diff] [blame] | 3249 | napi_schedule(&card->napi); |
| 3250 | } |
| 3251 | EXPORT_SYMBOL_GPL(qeth_qdio_start_poll); |
| 3252 | |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 3253 | int qeth_configure_cq(struct qeth_card *card, enum qeth_cq cq) |
| 3254 | { |
| 3255 | int rc; |
| 3256 | |
| 3257 | if (card->options.cq == QETH_CQ_NOTAVAILABLE) { |
| 3258 | rc = -1; |
| 3259 | goto out; |
| 3260 | } else { |
| 3261 | if (card->options.cq == cq) { |
| 3262 | rc = 0; |
| 3263 | goto out; |
| 3264 | } |
| 3265 | |
| 3266 | if (card->state != CARD_STATE_DOWN && |
| 3267 | card->state != CARD_STATE_RECOVER) { |
| 3268 | rc = -1; |
| 3269 | goto out; |
| 3270 | } |
| 3271 | |
| 3272 | qeth_free_qdio_buffers(card); |
| 3273 | card->options.cq = cq; |
| 3274 | rc = 0; |
| 3275 | } |
| 3276 | out: |
| 3277 | return rc; |
| 3278 | |
| 3279 | } |
| 3280 | EXPORT_SYMBOL_GPL(qeth_configure_cq); |
| 3281 | |
| 3282 | |
| 3283 | static void qeth_qdio_cq_handler(struct qeth_card *card, |
| 3284 | unsigned int qdio_err, |
| 3285 | unsigned int queue, int first_element, int count) { |
| 3286 | struct qeth_qdio_q *cq = card->qdio.c_q; |
| 3287 | int i; |
| 3288 | int rc; |
| 3289 | |
| 3290 | if (!qeth_is_cq(card, queue)) |
| 3291 | goto out; |
| 3292 | |
| 3293 | QETH_CARD_TEXT_(card, 5, "qcqhe%d", first_element); |
| 3294 | QETH_CARD_TEXT_(card, 5, "qcqhc%d", count); |
| 3295 | QETH_CARD_TEXT_(card, 5, "qcqherr%d", qdio_err); |
| 3296 | |
| 3297 | if (qdio_err) { |
| 3298 | netif_stop_queue(card->dev); |
| 3299 | qeth_schedule_recovery(card); |
| 3300 | goto out; |
| 3301 | } |
| 3302 | |
| 3303 | if (card->options.performance_stats) { |
| 3304 | card->perf_stats.cq_cnt++; |
| 3305 | card->perf_stats.cq_start_time = qeth_get_micros(); |
| 3306 | } |
| 3307 | |
| 3308 | for (i = first_element; i < first_element + count; ++i) { |
| 3309 | int bidx = i % QDIO_MAX_BUFFERS_PER_Q; |
| 3310 | struct qdio_buffer *buffer = &cq->qdio_bufs[bidx]; |
| 3311 | int e; |
| 3312 | |
| 3313 | e = 0; |
| 3314 | while (buffer->element[e].addr) { |
| 3315 | unsigned long phys_aob_addr; |
| 3316 | |
| 3317 | phys_aob_addr = (unsigned long) buffer->element[e].addr; |
| 3318 | qeth_qdio_handle_aob(card, phys_aob_addr); |
| 3319 | buffer->element[e].addr = NULL; |
| 3320 | buffer->element[e].eflags = 0; |
| 3321 | buffer->element[e].sflags = 0; |
| 3322 | buffer->element[e].length = 0; |
| 3323 | |
| 3324 | ++e; |
| 3325 | } |
| 3326 | |
| 3327 | buffer->element[15].eflags = 0; |
| 3328 | buffer->element[15].sflags = 0; |
| 3329 | } |
| 3330 | rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, queue, |
| 3331 | card->qdio.c_q->next_buf_to_init, |
| 3332 | count); |
| 3333 | if (rc) { |
| 3334 | dev_warn(&card->gdev->dev, |
| 3335 | "QDIO reported an error, rc=%i\n", rc); |
| 3336 | QETH_CARD_TEXT(card, 2, "qcqherr"); |
| 3337 | } |
| 3338 | card->qdio.c_q->next_buf_to_init = (card->qdio.c_q->next_buf_to_init |
| 3339 | + count) % QDIO_MAX_BUFFERS_PER_Q; |
| 3340 | |
| 3341 | netif_wake_queue(card->dev); |
| 3342 | |
| 3343 | if (card->options.performance_stats) { |
| 3344 | int delta_t = qeth_get_micros(); |
| 3345 | delta_t -= card->perf_stats.cq_start_time; |
| 3346 | card->perf_stats.cq_time += delta_t; |
| 3347 | } |
| 3348 | out: |
| 3349 | return; |
| 3350 | } |
| 3351 | |
Frank Blaschka | a1c3ed4 | 2010-09-07 21:14:42 +0000 | [diff] [blame] | 3352 | void qeth_qdio_input_handler(struct ccw_device *ccwdev, unsigned int qdio_err, |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 3353 | unsigned int queue, int first_elem, int count, |
Frank Blaschka | a1c3ed4 | 2010-09-07 21:14:42 +0000 | [diff] [blame] | 3354 | unsigned long card_ptr) |
| 3355 | { |
| 3356 | struct qeth_card *card = (struct qeth_card *)card_ptr; |
| 3357 | |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 3358 | QETH_CARD_TEXT_(card, 2, "qihq%d", queue); |
| 3359 | QETH_CARD_TEXT_(card, 2, "qiec%d", qdio_err); |
| 3360 | |
| 3361 | if (qeth_is_cq(card, queue)) |
| 3362 | qeth_qdio_cq_handler(card, qdio_err, queue, first_elem, count); |
| 3363 | else if (qdio_err) |
Frank Blaschka | a1c3ed4 | 2010-09-07 21:14:42 +0000 | [diff] [blame] | 3364 | qeth_schedule_recovery(card); |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 3365 | |
| 3366 | |
Frank Blaschka | a1c3ed4 | 2010-09-07 21:14:42 +0000 | [diff] [blame] | 3367 | } |
| 3368 | EXPORT_SYMBOL_GPL(qeth_qdio_input_handler); |
| 3369 | |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 3370 | void qeth_qdio_output_handler(struct ccw_device *ccwdev, |
| 3371 | unsigned int qdio_error, int __queue, int first_element, |
| 3372 | int count, unsigned long card_ptr) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3373 | { |
| 3374 | struct qeth_card *card = (struct qeth_card *) card_ptr; |
| 3375 | struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue]; |
| 3376 | struct qeth_qdio_out_buffer *buffer; |
| 3377 | int i; |
| 3378 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3379 | QETH_CARD_TEXT(card, 6, "qdouhdl"); |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 3380 | if (qdio_error & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3381 | QETH_CARD_TEXT(card, 2, "achkcond"); |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 3382 | netif_stop_queue(card->dev); |
| 3383 | qeth_schedule_recovery(card); |
| 3384 | return; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3385 | } |
| 3386 | if (card->options.performance_stats) { |
| 3387 | card->perf_stats.outbound_handler_cnt++; |
| 3388 | card->perf_stats.outbound_handler_start_time = |
| 3389 | qeth_get_micros(); |
| 3390 | } |
| 3391 | for (i = first_element; i < (first_element + count); ++i) { |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 3392 | int bidx = i % QDIO_MAX_BUFFERS_PER_Q; |
| 3393 | buffer = queue->bufs[bidx]; |
Ursula Braun | b67d801 | 2010-11-08 03:03:48 +0000 | [diff] [blame] | 3394 | qeth_handle_send_error(card, buffer, qdio_error); |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 3395 | |
| 3396 | if (queue->bufstates && |
| 3397 | (queue->bufstates[bidx].flags & |
| 3398 | QDIO_OUTBUF_STATE_FLAG_PENDING) != 0) { |
| 3399 | buffer->aob = queue->bufstates[bidx].aob; |
| 3400 | QETH_CARD_TEXT_(queue->card, 5, "pel%d", bidx); |
| 3401 | QETH_CARD_TEXT_(queue->card, 5, "aob"); |
| 3402 | QETH_CARD_TEXT_(queue->card, 5, "%lx", |
| 3403 | virt_to_phys(buffer->aob)); |
| 3404 | BUG_ON(bidx < 0 || bidx >= QDIO_MAX_BUFFERS_PER_Q); |
| 3405 | if (qeth_init_qdio_out_buf(queue, bidx)) |
| 3406 | qeth_schedule_recovery(card); |
| 3407 | } else { |
| 3408 | qeth_clear_output_buffer(queue, buffer, |
| 3409 | QETH_QDIO_BUF_EMPTY); |
| 3410 | } |
| 3411 | qeth_cleanup_handled_pending(queue, bidx, 0); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3412 | } |
| 3413 | atomic_sub(count, &queue->used_buffers); |
| 3414 | /* check if we need to do something on this outbound queue */ |
| 3415 | if (card->info.type != QETH_CARD_TYPE_IQD) |
| 3416 | qeth_check_outbound_queue(queue); |
| 3417 | |
| 3418 | netif_wake_queue(queue->card->dev); |
| 3419 | if (card->options.performance_stats) |
| 3420 | card->perf_stats.outbound_handler_time += qeth_get_micros() - |
| 3421 | card->perf_stats.outbound_handler_start_time; |
| 3422 | } |
| 3423 | EXPORT_SYMBOL_GPL(qeth_qdio_output_handler); |
| 3424 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3425 | int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb, |
| 3426 | int ipv, int cast_type) |
| 3427 | { |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 3428 | if (!ipv && (card->info.type == QETH_CARD_TYPE_OSD || |
| 3429 | card->info.type == QETH_CARD_TYPE_OSX)) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3430 | return card->qdio.default_out_queue; |
| 3431 | switch (card->qdio.no_out_queues) { |
| 3432 | case 4: |
| 3433 | if (cast_type && card->info.is_multicast_different) |
| 3434 | return card->info.is_multicast_different & |
| 3435 | (card->qdio.no_out_queues - 1); |
| 3436 | if (card->qdio.do_prio_queueing && (ipv == 4)) { |
| 3437 | const u8 tos = ip_hdr(skb)->tos; |
| 3438 | |
| 3439 | if (card->qdio.do_prio_queueing == |
| 3440 | QETH_PRIO_Q_ING_TOS) { |
| 3441 | if (tos & IP_TOS_NOTIMPORTANT) |
| 3442 | return 3; |
| 3443 | if (tos & IP_TOS_HIGHRELIABILITY) |
| 3444 | return 2; |
| 3445 | if (tos & IP_TOS_HIGHTHROUGHPUT) |
| 3446 | return 1; |
| 3447 | if (tos & IP_TOS_LOWDELAY) |
| 3448 | return 0; |
| 3449 | } |
| 3450 | if (card->qdio.do_prio_queueing == |
| 3451 | QETH_PRIO_Q_ING_PREC) |
| 3452 | return 3 - (tos >> 6); |
| 3453 | } else if (card->qdio.do_prio_queueing && (ipv == 6)) { |
| 3454 | /* TODO: IPv6!!! */ |
| 3455 | } |
| 3456 | return card->qdio.default_out_queue; |
| 3457 | case 1: /* fallthrough for single-out-queue 1920-device */ |
| 3458 | default: |
| 3459 | return card->qdio.default_out_queue; |
| 3460 | } |
| 3461 | } |
| 3462 | EXPORT_SYMBOL_GPL(qeth_get_priority_queue); |
| 3463 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3464 | int qeth_get_elements_no(struct qeth_card *card, void *hdr, |
| 3465 | struct sk_buff *skb, int elems) |
| 3466 | { |
Frank Blaschka | 51aa165 | 2010-06-21 22:57:10 +0000 | [diff] [blame] | 3467 | int dlen = skb->len - skb->data_len; |
| 3468 | int elements_needed = PFN_UP((unsigned long)skb->data + dlen - 1) - |
| 3469 | PFN_DOWN((unsigned long)skb->data); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3470 | |
Frank Blaschka | 51aa165 | 2010-06-21 22:57:10 +0000 | [diff] [blame] | 3471 | elements_needed += skb_shinfo(skb)->nr_frags; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3472 | if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)) { |
Frank Blaschka | 14cc21b | 2008-06-06 12:37:46 +0200 | [diff] [blame] | 3473 | QETH_DBF_MESSAGE(2, "Invalid size of IP packet " |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3474 | "(Number=%d / Length=%d). Discarded.\n", |
| 3475 | (elements_needed+elems), skb->len); |
| 3476 | return 0; |
| 3477 | } |
| 3478 | return elements_needed; |
| 3479 | } |
| 3480 | EXPORT_SYMBOL_GPL(qeth_get_elements_no); |
| 3481 | |
Frank Blaschka | 51aa165 | 2010-06-21 22:57:10 +0000 | [diff] [blame] | 3482 | int qeth_hdr_chk_and_bounce(struct sk_buff *skb, int len) |
| 3483 | { |
| 3484 | int hroom, inpage, rest; |
| 3485 | |
| 3486 | if (((unsigned long)skb->data & PAGE_MASK) != |
| 3487 | (((unsigned long)skb->data + len - 1) & PAGE_MASK)) { |
| 3488 | hroom = skb_headroom(skb); |
| 3489 | inpage = PAGE_SIZE - ((unsigned long) skb->data % PAGE_SIZE); |
| 3490 | rest = len - inpage; |
| 3491 | if (rest > hroom) |
| 3492 | return 1; |
| 3493 | memmove(skb->data - rest, skb->data, skb->len - skb->data_len); |
| 3494 | skb->data -= rest; |
| 3495 | QETH_DBF_MESSAGE(2, "skb bounce len: %d rest: %d\n", len, rest); |
| 3496 | } |
| 3497 | return 0; |
| 3498 | } |
| 3499 | EXPORT_SYMBOL_GPL(qeth_hdr_chk_and_bounce); |
| 3500 | |
Frank Blaschka | f90b744 | 2008-04-24 10:15:24 +0200 | [diff] [blame] | 3501 | static inline void __qeth_fill_buffer(struct sk_buff *skb, |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 3502 | struct qdio_buffer *buffer, int is_tso, int *next_element_to_fill, |
| 3503 | int offset) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3504 | { |
Frank Blaschka | 51aa165 | 2010-06-21 22:57:10 +0000 | [diff] [blame] | 3505 | int length = skb->len - skb->data_len; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3506 | int length_here; |
| 3507 | int element; |
| 3508 | char *data; |
Frank Blaschka | 51aa165 | 2010-06-21 22:57:10 +0000 | [diff] [blame] | 3509 | int first_lap, cnt; |
| 3510 | struct skb_frag_struct *frag; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3511 | |
| 3512 | element = *next_element_to_fill; |
| 3513 | data = skb->data; |
| 3514 | first_lap = (is_tso == 0 ? 1 : 0); |
| 3515 | |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 3516 | if (offset >= 0) { |
| 3517 | data = skb->data + offset; |
Frank Blaschka | e1f03ae | 2008-10-24 11:16:53 +0200 | [diff] [blame] | 3518 | length -= offset; |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 3519 | first_lap = 0; |
| 3520 | } |
| 3521 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3522 | while (length > 0) { |
| 3523 | /* length_here is the remaining amount of data in this page */ |
| 3524 | length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE); |
| 3525 | if (length < length_here) |
| 3526 | length_here = length; |
| 3527 | |
| 3528 | buffer->element[element].addr = data; |
| 3529 | buffer->element[element].length = length_here; |
| 3530 | length -= length_here; |
| 3531 | if (!length) { |
| 3532 | if (first_lap) |
Frank Blaschka | 51aa165 | 2010-06-21 22:57:10 +0000 | [diff] [blame] | 3533 | if (skb_shinfo(skb)->nr_frags) |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 3534 | buffer->element[element].eflags = |
| 3535 | SBAL_EFLAGS_FIRST_FRAG; |
Frank Blaschka | 51aa165 | 2010-06-21 22:57:10 +0000 | [diff] [blame] | 3536 | else |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 3537 | buffer->element[element].eflags = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3538 | else |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 3539 | buffer->element[element].eflags = |
| 3540 | SBAL_EFLAGS_MIDDLE_FRAG; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3541 | } else { |
| 3542 | if (first_lap) |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 3543 | buffer->element[element].eflags = |
| 3544 | SBAL_EFLAGS_FIRST_FRAG; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3545 | else |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 3546 | buffer->element[element].eflags = |
| 3547 | SBAL_EFLAGS_MIDDLE_FRAG; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3548 | } |
| 3549 | data += length_here; |
| 3550 | element++; |
| 3551 | first_lap = 0; |
| 3552 | } |
Frank Blaschka | 51aa165 | 2010-06-21 22:57:10 +0000 | [diff] [blame] | 3553 | |
| 3554 | for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) { |
| 3555 | frag = &skb_shinfo(skb)->frags[cnt]; |
| 3556 | buffer->element[element].addr = (char *)page_to_phys(frag->page) |
| 3557 | + frag->page_offset; |
| 3558 | buffer->element[element].length = frag->size; |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 3559 | buffer->element[element].eflags = SBAL_EFLAGS_MIDDLE_FRAG; |
Frank Blaschka | 51aa165 | 2010-06-21 22:57:10 +0000 | [diff] [blame] | 3560 | element++; |
| 3561 | } |
| 3562 | |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 3563 | if (buffer->element[element - 1].eflags) |
| 3564 | buffer->element[element - 1].eflags = SBAL_EFLAGS_LAST_FRAG; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3565 | *next_element_to_fill = element; |
| 3566 | } |
| 3567 | |
Frank Blaschka | f90b744 | 2008-04-24 10:15:24 +0200 | [diff] [blame] | 3568 | static inline int qeth_fill_buffer(struct qeth_qdio_out_q *queue, |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 3569 | struct qeth_qdio_out_buffer *buf, struct sk_buff *skb, |
| 3570 | struct qeth_hdr *hdr, int offset, int hd_len) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3571 | { |
| 3572 | struct qdio_buffer *buffer; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3573 | int flush_cnt = 0, hdr_len, large_send = 0; |
| 3574 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3575 | buffer = buf->buffer; |
| 3576 | atomic_inc(&skb->users); |
| 3577 | skb_queue_tail(&buf->skb_list, skb); |
| 3578 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3579 | /*check first on TSO ....*/ |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 3580 | if (hdr->hdr.l3.id == QETH_HEADER_TYPE_TSO) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3581 | int element = buf->next_element_to_fill; |
| 3582 | |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 3583 | hdr_len = sizeof(struct qeth_hdr_tso) + |
| 3584 | ((struct qeth_hdr_tso *)hdr)->ext.dg_hdr_len; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3585 | /*fill first buffer entry only with header information */ |
| 3586 | buffer->element[element].addr = skb->data; |
| 3587 | buffer->element[element].length = hdr_len; |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 3588 | buffer->element[element].eflags = SBAL_EFLAGS_FIRST_FRAG; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3589 | buf->next_element_to_fill++; |
| 3590 | skb->data += hdr_len; |
| 3591 | skb->len -= hdr_len; |
| 3592 | large_send = 1; |
| 3593 | } |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 3594 | |
| 3595 | if (offset >= 0) { |
| 3596 | int element = buf->next_element_to_fill; |
| 3597 | buffer->element[element].addr = hdr; |
| 3598 | buffer->element[element].length = sizeof(struct qeth_hdr) + |
| 3599 | hd_len; |
Jan Glauber | 3ec9087 | 2011-06-06 14:14:40 +0200 | [diff] [blame] | 3600 | buffer->element[element].eflags = SBAL_EFLAGS_FIRST_FRAG; |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 3601 | buf->is_header[element] = 1; |
| 3602 | buf->next_element_to_fill++; |
| 3603 | } |
| 3604 | |
Frank Blaschka | 51aa165 | 2010-06-21 22:57:10 +0000 | [diff] [blame] | 3605 | __qeth_fill_buffer(skb, buffer, large_send, |
| 3606 | (int *)&buf->next_element_to_fill, offset); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3607 | |
| 3608 | if (!queue->do_pack) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3609 | QETH_CARD_TEXT(queue->card, 6, "fillbfnp"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3610 | /* set state to PRIMED -> will be flushed */ |
| 3611 | atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); |
| 3612 | flush_cnt = 1; |
| 3613 | } else { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3614 | QETH_CARD_TEXT(queue->card, 6, "fillbfpa"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3615 | if (queue->card->options.performance_stats) |
| 3616 | queue->card->perf_stats.skbs_sent_pack++; |
| 3617 | if (buf->next_element_to_fill >= |
| 3618 | QETH_MAX_BUFFER_ELEMENTS(queue->card)) { |
| 3619 | /* |
| 3620 | * packed buffer if full -> set state PRIMED |
| 3621 | * -> will be flushed |
| 3622 | */ |
| 3623 | atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); |
| 3624 | flush_cnt = 1; |
| 3625 | } |
| 3626 | } |
| 3627 | return flush_cnt; |
| 3628 | } |
| 3629 | |
| 3630 | int qeth_do_send_packet_fast(struct qeth_card *card, |
| 3631 | struct qeth_qdio_out_q *queue, struct sk_buff *skb, |
| 3632 | struct qeth_hdr *hdr, int elements_needed, |
Frank Blaschka | 64ef895 | 2009-03-24 20:57:16 +0000 | [diff] [blame] | 3633 | int offset, int hd_len) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3634 | { |
| 3635 | struct qeth_qdio_out_buffer *buffer; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3636 | int index; |
| 3637 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3638 | /* spin until we get the queue ... */ |
| 3639 | while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED, |
| 3640 | QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED); |
| 3641 | /* ... now we've got the queue */ |
| 3642 | index = queue->next_buf_to_fill; |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 3643 | buffer = queue->bufs[queue->next_buf_to_fill]; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3644 | /* |
| 3645 | * check if buffer is empty to make sure that we do not 'overtake' |
| 3646 | * ourselves and try to fill a buffer that is already primed |
| 3647 | */ |
| 3648 | if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) |
| 3649 | goto out; |
Frank Blaschka | 64ef895 | 2009-03-24 20:57:16 +0000 | [diff] [blame] | 3650 | queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) % |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3651 | QDIO_MAX_BUFFERS_PER_Q; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3652 | atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); |
Frank Blaschka | 64ef895 | 2009-03-24 20:57:16 +0000 | [diff] [blame] | 3653 | qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len); |
| 3654 | qeth_flush_buffers(queue, index, 1); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3655 | return 0; |
| 3656 | out: |
| 3657 | atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); |
| 3658 | return -EBUSY; |
| 3659 | } |
| 3660 | EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast); |
| 3661 | |
| 3662 | int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, |
| 3663 | struct sk_buff *skb, struct qeth_hdr *hdr, |
Frank Blaschka | 64ef895 | 2009-03-24 20:57:16 +0000 | [diff] [blame] | 3664 | int elements_needed) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3665 | { |
| 3666 | struct qeth_qdio_out_buffer *buffer; |
| 3667 | int start_index; |
| 3668 | int flush_count = 0; |
| 3669 | int do_pack = 0; |
| 3670 | int tmp; |
| 3671 | int rc = 0; |
| 3672 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3673 | /* spin until we get the queue ... */ |
| 3674 | while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED, |
| 3675 | QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED); |
| 3676 | start_index = queue->next_buf_to_fill; |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 3677 | buffer = queue->bufs[queue->next_buf_to_fill]; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3678 | /* |
| 3679 | * check if buffer is empty to make sure that we do not 'overtake' |
| 3680 | * ourselves and try to fill a buffer that is already primed |
| 3681 | */ |
| 3682 | if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) { |
| 3683 | atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); |
| 3684 | return -EBUSY; |
| 3685 | } |
| 3686 | /* check if we need to switch packing state of this queue */ |
| 3687 | qeth_switch_to_packing_if_needed(queue); |
| 3688 | if (queue->do_pack) { |
| 3689 | do_pack = 1; |
Frank Blaschka | 64ef895 | 2009-03-24 20:57:16 +0000 | [diff] [blame] | 3690 | /* does packet fit in current buffer? */ |
| 3691 | if ((QETH_MAX_BUFFER_ELEMENTS(card) - |
| 3692 | buffer->next_element_to_fill) < elements_needed) { |
| 3693 | /* ... no -> set state PRIMED */ |
| 3694 | atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); |
| 3695 | flush_count++; |
| 3696 | queue->next_buf_to_fill = |
| 3697 | (queue->next_buf_to_fill + 1) % |
| 3698 | QDIO_MAX_BUFFERS_PER_Q; |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 3699 | buffer = queue->bufs[queue->next_buf_to_fill]; |
Frank Blaschka | 64ef895 | 2009-03-24 20:57:16 +0000 | [diff] [blame] | 3700 | /* we did a step forward, so check buffer state |
| 3701 | * again */ |
| 3702 | if (atomic_read(&buffer->state) != |
| 3703 | QETH_QDIO_BUF_EMPTY) { |
| 3704 | qeth_flush_buffers(queue, start_index, |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 3705 | flush_count); |
Frank Blaschka | 64ef895 | 2009-03-24 20:57:16 +0000 | [diff] [blame] | 3706 | atomic_set(&queue->state, |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3707 | QETH_OUT_Q_UNLOCKED); |
Frank Blaschka | 64ef895 | 2009-03-24 20:57:16 +0000 | [diff] [blame] | 3708 | return -EBUSY; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3709 | } |
| 3710 | } |
| 3711 | } |
Frank Blaschka | 64ef895 | 2009-03-24 20:57:16 +0000 | [diff] [blame] | 3712 | tmp = qeth_fill_buffer(queue, buffer, skb, hdr, -1, 0); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3713 | queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) % |
| 3714 | QDIO_MAX_BUFFERS_PER_Q; |
| 3715 | flush_count += tmp; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3716 | if (flush_count) |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 3717 | qeth_flush_buffers(queue, start_index, flush_count); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3718 | else if (!atomic_read(&queue->set_pci_flags_count)) |
| 3719 | atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH); |
| 3720 | /* |
| 3721 | * queue->state will go from LOCKED -> UNLOCKED or from |
| 3722 | * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us |
| 3723 | * (switch packing state or flush buffer to get another pci flag out). |
| 3724 | * In that case we will enter this loop |
| 3725 | */ |
| 3726 | while (atomic_dec_return(&queue->state)) { |
| 3727 | flush_count = 0; |
| 3728 | start_index = queue->next_buf_to_fill; |
| 3729 | /* check if we can go back to non-packing state */ |
| 3730 | flush_count += qeth_switch_to_nonpacking_if_needed(queue); |
| 3731 | /* |
| 3732 | * check if we need to flush a packing buffer to get a pci |
| 3733 | * flag out on the queue |
| 3734 | */ |
| 3735 | if (!flush_count && !atomic_read(&queue->set_pci_flags_count)) |
| 3736 | flush_count += qeth_flush_buffers_on_no_pci(queue); |
| 3737 | if (flush_count) |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 3738 | qeth_flush_buffers(queue, start_index, flush_count); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3739 | } |
| 3740 | /* at this point the queue is UNLOCKED again */ |
| 3741 | if (queue->card->options.performance_stats && do_pack) |
| 3742 | queue->card->perf_stats.bufs_sent_pack += flush_count; |
| 3743 | |
| 3744 | return rc; |
| 3745 | } |
| 3746 | EXPORT_SYMBOL_GPL(qeth_do_send_packet); |
| 3747 | |
| 3748 | static int qeth_setadp_promisc_mode_cb(struct qeth_card *card, |
| 3749 | struct qeth_reply *reply, unsigned long data) |
| 3750 | { |
| 3751 | struct qeth_ipa_cmd *cmd; |
| 3752 | struct qeth_ipacmd_setadpparms *setparms; |
| 3753 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3754 | QETH_CARD_TEXT(card, 4, "prmadpcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3755 | |
| 3756 | cmd = (struct qeth_ipa_cmd *) data; |
| 3757 | setparms = &(cmd->data.setadapterparms); |
| 3758 | |
| 3759 | qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd); |
| 3760 | if (cmd->hdr.return_code) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3761 | QETH_CARD_TEXT_(card, 4, "prmrc%2.2x", cmd->hdr.return_code); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3762 | setparms->data.mode = SET_PROMISC_MODE_OFF; |
| 3763 | } |
| 3764 | card->info.promisc_mode = setparms->data.mode; |
| 3765 | return 0; |
| 3766 | } |
| 3767 | |
| 3768 | void qeth_setadp_promisc_mode(struct qeth_card *card) |
| 3769 | { |
| 3770 | enum qeth_ipa_promisc_modes mode; |
| 3771 | struct net_device *dev = card->dev; |
| 3772 | struct qeth_cmd_buffer *iob; |
| 3773 | struct qeth_ipa_cmd *cmd; |
| 3774 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3775 | QETH_CARD_TEXT(card, 4, "setprom"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3776 | |
| 3777 | if (((dev->flags & IFF_PROMISC) && |
| 3778 | (card->info.promisc_mode == SET_PROMISC_MODE_ON)) || |
| 3779 | (!(dev->flags & IFF_PROMISC) && |
| 3780 | (card->info.promisc_mode == SET_PROMISC_MODE_OFF))) |
| 3781 | return; |
| 3782 | mode = SET_PROMISC_MODE_OFF; |
| 3783 | if (dev->flags & IFF_PROMISC) |
| 3784 | mode = SET_PROMISC_MODE_ON; |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3785 | QETH_CARD_TEXT_(card, 4, "mode:%x", mode); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3786 | |
| 3787 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE, |
| 3788 | sizeof(struct qeth_ipacmd_setadpparms)); |
| 3789 | cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE); |
| 3790 | cmd->data.setadapterparms.data.mode = mode; |
| 3791 | qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL); |
| 3792 | } |
| 3793 | EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode); |
| 3794 | |
| 3795 | int qeth_change_mtu(struct net_device *dev, int new_mtu) |
| 3796 | { |
| 3797 | struct qeth_card *card; |
| 3798 | char dbf_text[15]; |
| 3799 | |
Heiko Carstens | 509e256 | 2008-07-26 02:24:10 -0700 | [diff] [blame] | 3800 | card = dev->ml_priv; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3801 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3802 | QETH_CARD_TEXT(card, 4, "chgmtu"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3803 | sprintf(dbf_text, "%8x", new_mtu); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3804 | QETH_CARD_TEXT(card, 4, dbf_text); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3805 | |
| 3806 | if (new_mtu < 64) |
| 3807 | return -EINVAL; |
| 3808 | if (new_mtu > 65535) |
| 3809 | return -EINVAL; |
| 3810 | if ((!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) && |
| 3811 | (!qeth_mtu_is_valid(card, new_mtu))) |
| 3812 | return -EINVAL; |
| 3813 | dev->mtu = new_mtu; |
| 3814 | return 0; |
| 3815 | } |
| 3816 | EXPORT_SYMBOL_GPL(qeth_change_mtu); |
| 3817 | |
| 3818 | struct net_device_stats *qeth_get_stats(struct net_device *dev) |
| 3819 | { |
| 3820 | struct qeth_card *card; |
| 3821 | |
Heiko Carstens | 509e256 | 2008-07-26 02:24:10 -0700 | [diff] [blame] | 3822 | card = dev->ml_priv; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3823 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3824 | QETH_CARD_TEXT(card, 5, "getstat"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3825 | |
| 3826 | return &card->stats; |
| 3827 | } |
| 3828 | EXPORT_SYMBOL_GPL(qeth_get_stats); |
| 3829 | |
| 3830 | static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card, |
| 3831 | struct qeth_reply *reply, unsigned long data) |
| 3832 | { |
| 3833 | struct qeth_ipa_cmd *cmd; |
| 3834 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3835 | QETH_CARD_TEXT(card, 4, "chgmaccb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3836 | |
| 3837 | cmd = (struct qeth_ipa_cmd *) data; |
| 3838 | if (!card->options.layer2 || |
| 3839 | !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) { |
| 3840 | memcpy(card->dev->dev_addr, |
| 3841 | &cmd->data.setadapterparms.data.change_addr.addr, |
| 3842 | OSA_ADDR_LEN); |
| 3843 | card->info.mac_bits |= QETH_LAYER2_MAC_READ; |
| 3844 | } |
| 3845 | qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd); |
| 3846 | return 0; |
| 3847 | } |
| 3848 | |
| 3849 | int qeth_setadpparms_change_macaddr(struct qeth_card *card) |
| 3850 | { |
| 3851 | int rc; |
| 3852 | struct qeth_cmd_buffer *iob; |
| 3853 | struct qeth_ipa_cmd *cmd; |
| 3854 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3855 | QETH_CARD_TEXT(card, 4, "chgmac"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3856 | |
| 3857 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS, |
| 3858 | sizeof(struct qeth_ipacmd_setadpparms)); |
| 3859 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| 3860 | cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC; |
| 3861 | cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN; |
| 3862 | memcpy(&cmd->data.setadapterparms.data.change_addr.addr, |
| 3863 | card->dev->dev_addr, OSA_ADDR_LEN); |
| 3864 | rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb, |
| 3865 | NULL); |
| 3866 | return rc; |
| 3867 | } |
| 3868 | EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr); |
| 3869 | |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 3870 | static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card, |
| 3871 | struct qeth_reply *reply, unsigned long data) |
| 3872 | { |
| 3873 | struct qeth_ipa_cmd *cmd; |
| 3874 | struct qeth_set_access_ctrl *access_ctrl_req; |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 3875 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3876 | QETH_CARD_TEXT(card, 4, "setaccb"); |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 3877 | |
| 3878 | cmd = (struct qeth_ipa_cmd *) data; |
| 3879 | access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl; |
| 3880 | QETH_DBF_TEXT_(SETUP, 2, "setaccb"); |
| 3881 | QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name); |
| 3882 | QETH_DBF_TEXT_(SETUP, 2, "rc=%d", |
| 3883 | cmd->data.setadapterparms.hdr.return_code); |
| 3884 | switch (cmd->data.setadapterparms.hdr.return_code) { |
| 3885 | case SET_ACCESS_CTRL_RC_SUCCESS: |
| 3886 | case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED: |
| 3887 | case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED: |
| 3888 | { |
| 3889 | card->options.isolation = access_ctrl_req->subcmd_code; |
| 3890 | if (card->options.isolation == ISOLATION_MODE_NONE) { |
| 3891 | dev_info(&card->gdev->dev, |
| 3892 | "QDIO data connection isolation is deactivated\n"); |
| 3893 | } else { |
| 3894 | dev_info(&card->gdev->dev, |
| 3895 | "QDIO data connection isolation is activated\n"); |
| 3896 | } |
| 3897 | QETH_DBF_MESSAGE(3, "OK:SET_ACCESS_CTRL(%s, %d)==%d\n", |
| 3898 | card->gdev->dev.kobj.name, |
| 3899 | access_ctrl_req->subcmd_code, |
| 3900 | cmd->data.setadapterparms.hdr.return_code); |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 3901 | break; |
| 3902 | } |
| 3903 | case SET_ACCESS_CTRL_RC_NOT_SUPPORTED: |
| 3904 | { |
| 3905 | QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%s,%d)==%d\n", |
| 3906 | card->gdev->dev.kobj.name, |
| 3907 | access_ctrl_req->subcmd_code, |
| 3908 | cmd->data.setadapterparms.hdr.return_code); |
| 3909 | dev_err(&card->gdev->dev, "Adapter does not " |
| 3910 | "support QDIO data connection isolation\n"); |
| 3911 | |
| 3912 | /* ensure isolation mode is "none" */ |
| 3913 | card->options.isolation = ISOLATION_MODE_NONE; |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 3914 | break; |
| 3915 | } |
| 3916 | case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER: |
| 3917 | { |
| 3918 | QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d\n", |
| 3919 | card->gdev->dev.kobj.name, |
| 3920 | access_ctrl_req->subcmd_code, |
| 3921 | cmd->data.setadapterparms.hdr.return_code); |
| 3922 | dev_err(&card->gdev->dev, |
| 3923 | "Adapter is dedicated. " |
| 3924 | "QDIO data connection isolation not supported\n"); |
| 3925 | |
| 3926 | /* ensure isolation mode is "none" */ |
| 3927 | card->options.isolation = ISOLATION_MODE_NONE; |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 3928 | break; |
| 3929 | } |
| 3930 | case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF: |
| 3931 | { |
| 3932 | QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d\n", |
| 3933 | card->gdev->dev.kobj.name, |
| 3934 | access_ctrl_req->subcmd_code, |
| 3935 | cmd->data.setadapterparms.hdr.return_code); |
| 3936 | dev_err(&card->gdev->dev, |
| 3937 | "TSO does not permit QDIO data connection isolation\n"); |
| 3938 | |
| 3939 | /* ensure isolation mode is "none" */ |
| 3940 | card->options.isolation = ISOLATION_MODE_NONE; |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 3941 | break; |
| 3942 | } |
| 3943 | default: |
| 3944 | { |
| 3945 | /* this should never happen */ |
| 3946 | QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d" |
| 3947 | "==UNKNOWN\n", |
| 3948 | card->gdev->dev.kobj.name, |
| 3949 | access_ctrl_req->subcmd_code, |
| 3950 | cmd->data.setadapterparms.hdr.return_code); |
| 3951 | |
| 3952 | /* ensure isolation mode is "none" */ |
| 3953 | card->options.isolation = ISOLATION_MODE_NONE; |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 3954 | break; |
| 3955 | } |
| 3956 | } |
| 3957 | qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd); |
Ursula Braun | bbb822a | 2010-07-22 23:15:08 +0000 | [diff] [blame] | 3958 | return 0; |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 3959 | } |
| 3960 | |
| 3961 | static int qeth_setadpparms_set_access_ctrl(struct qeth_card *card, |
| 3962 | enum qeth_ipa_isolation_modes isolation) |
| 3963 | { |
| 3964 | int rc; |
| 3965 | struct qeth_cmd_buffer *iob; |
| 3966 | struct qeth_ipa_cmd *cmd; |
| 3967 | struct qeth_set_access_ctrl *access_ctrl_req; |
| 3968 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3969 | QETH_CARD_TEXT(card, 4, "setacctl"); |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 3970 | |
| 3971 | QETH_DBF_TEXT_(SETUP, 2, "setacctl"); |
| 3972 | QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name); |
| 3973 | |
| 3974 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_ACCESS_CONTROL, |
| 3975 | sizeof(struct qeth_ipacmd_setadpparms_hdr) + |
| 3976 | sizeof(struct qeth_set_access_ctrl)); |
| 3977 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| 3978 | access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl; |
| 3979 | access_ctrl_req->subcmd_code = isolation; |
| 3980 | |
| 3981 | rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_set_access_ctrl_cb, |
| 3982 | NULL); |
| 3983 | QETH_DBF_TEXT_(SETUP, 2, "rc=%d", rc); |
| 3984 | return rc; |
| 3985 | } |
| 3986 | |
| 3987 | int qeth_set_access_ctrl_online(struct qeth_card *card) |
| 3988 | { |
| 3989 | int rc = 0; |
| 3990 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3991 | QETH_CARD_TEXT(card, 4, "setactlo"); |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 3992 | |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 3993 | if ((card->info.type == QETH_CARD_TYPE_OSD || |
| 3994 | card->info.type == QETH_CARD_TYPE_OSX) && |
| 3995 | qeth_adp_supported(card, IPA_SETADP_SET_ACCESS_CONTROL)) { |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 3996 | rc = qeth_setadpparms_set_access_ctrl(card, |
| 3997 | card->options.isolation); |
| 3998 | if (rc) { |
| 3999 | QETH_DBF_MESSAGE(3, |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 4000 | "IPA(SET_ACCESS_CTRL,%s,%d) sent failed\n", |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 4001 | card->gdev->dev.kobj.name, |
| 4002 | rc); |
| 4003 | } |
| 4004 | } else if (card->options.isolation != ISOLATION_MODE_NONE) { |
| 4005 | card->options.isolation = ISOLATION_MODE_NONE; |
| 4006 | |
| 4007 | dev_err(&card->gdev->dev, "Adapter does not " |
| 4008 | "support QDIO data connection isolation\n"); |
| 4009 | rc = -EOPNOTSUPP; |
| 4010 | } |
| 4011 | return rc; |
| 4012 | } |
| 4013 | EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online); |
| 4014 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4015 | void qeth_tx_timeout(struct net_device *dev) |
| 4016 | { |
| 4017 | struct qeth_card *card; |
| 4018 | |
Heiko Carstens | 509e256 | 2008-07-26 02:24:10 -0700 | [diff] [blame] | 4019 | card = dev->ml_priv; |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 4020 | QETH_CARD_TEXT(card, 4, "txtimeo"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4021 | card->stats.tx_errors++; |
| 4022 | qeth_schedule_recovery(card); |
| 4023 | } |
| 4024 | EXPORT_SYMBOL_GPL(qeth_tx_timeout); |
| 4025 | |
| 4026 | int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum) |
| 4027 | { |
Heiko Carstens | 509e256 | 2008-07-26 02:24:10 -0700 | [diff] [blame] | 4028 | struct qeth_card *card = dev->ml_priv; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4029 | int rc = 0; |
| 4030 | |
| 4031 | switch (regnum) { |
| 4032 | case MII_BMCR: /* Basic mode control register */ |
| 4033 | rc = BMCR_FULLDPLX; |
| 4034 | if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) && |
| 4035 | (card->info.link_type != QETH_LINK_TYPE_OSN) && |
| 4036 | (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH)) |
| 4037 | rc |= BMCR_SPEED100; |
| 4038 | break; |
| 4039 | case MII_BMSR: /* Basic mode status register */ |
| 4040 | rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS | |
| 4041 | BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL | |
| 4042 | BMSR_100BASE4; |
| 4043 | break; |
| 4044 | case MII_PHYSID1: /* PHYS ID 1 */ |
| 4045 | rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) | |
| 4046 | dev->dev_addr[2]; |
| 4047 | rc = (rc >> 5) & 0xFFFF; |
| 4048 | break; |
| 4049 | case MII_PHYSID2: /* PHYS ID 2 */ |
| 4050 | rc = (dev->dev_addr[2] << 10) & 0xFFFF; |
| 4051 | break; |
| 4052 | case MII_ADVERTISE: /* Advertisement control reg */ |
| 4053 | rc = ADVERTISE_ALL; |
| 4054 | break; |
| 4055 | case MII_LPA: /* Link partner ability reg */ |
| 4056 | rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL | |
| 4057 | LPA_100BASE4 | LPA_LPACK; |
| 4058 | break; |
| 4059 | case MII_EXPANSION: /* Expansion register */ |
| 4060 | break; |
| 4061 | case MII_DCOUNTER: /* disconnect counter */ |
| 4062 | break; |
| 4063 | case MII_FCSCOUNTER: /* false carrier counter */ |
| 4064 | break; |
| 4065 | case MII_NWAYTEST: /* N-way auto-neg test register */ |
| 4066 | break; |
| 4067 | case MII_RERRCOUNTER: /* rx error counter */ |
| 4068 | rc = card->stats.rx_errors; |
| 4069 | break; |
| 4070 | case MII_SREVISION: /* silicon revision */ |
| 4071 | break; |
| 4072 | case MII_RESV1: /* reserved 1 */ |
| 4073 | break; |
| 4074 | case MII_LBRERROR: /* loopback, rx, bypass error */ |
| 4075 | break; |
| 4076 | case MII_PHYADDR: /* physical address */ |
| 4077 | break; |
| 4078 | case MII_RESV2: /* reserved 2 */ |
| 4079 | break; |
| 4080 | case MII_TPISTATUS: /* TPI status for 10mbps */ |
| 4081 | break; |
| 4082 | case MII_NCONFIG: /* network interface config */ |
| 4083 | break; |
| 4084 | default: |
| 4085 | break; |
| 4086 | } |
| 4087 | return rc; |
| 4088 | } |
| 4089 | EXPORT_SYMBOL_GPL(qeth_mdio_read); |
| 4090 | |
| 4091 | static int qeth_send_ipa_snmp_cmd(struct qeth_card *card, |
| 4092 | struct qeth_cmd_buffer *iob, int len, |
| 4093 | int (*reply_cb)(struct qeth_card *, struct qeth_reply *, |
| 4094 | unsigned long), |
| 4095 | void *reply_param) |
| 4096 | { |
| 4097 | u16 s1, s2; |
| 4098 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 4099 | QETH_CARD_TEXT(card, 4, "sendsnmp"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4100 | |
| 4101 | memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); |
| 4102 | memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), |
| 4103 | &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); |
| 4104 | /* adjust PDU length fields in IPA_PDU_HEADER */ |
| 4105 | s1 = (u32) IPA_PDU_HEADER_SIZE + len; |
| 4106 | s2 = (u32) len; |
| 4107 | memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); |
| 4108 | memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); |
| 4109 | memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); |
| 4110 | memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); |
| 4111 | return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob, |
| 4112 | reply_cb, reply_param); |
| 4113 | } |
| 4114 | |
| 4115 | static int qeth_snmp_command_cb(struct qeth_card *card, |
| 4116 | struct qeth_reply *reply, unsigned long sdata) |
| 4117 | { |
| 4118 | struct qeth_ipa_cmd *cmd; |
| 4119 | struct qeth_arp_query_info *qinfo; |
| 4120 | struct qeth_snmp_cmd *snmp; |
| 4121 | unsigned char *data; |
| 4122 | __u16 data_len; |
| 4123 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 4124 | QETH_CARD_TEXT(card, 3, "snpcmdcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4125 | |
| 4126 | cmd = (struct qeth_ipa_cmd *) sdata; |
| 4127 | data = (unsigned char *)((char *)cmd - reply->offset); |
| 4128 | qinfo = (struct qeth_arp_query_info *) reply->param; |
| 4129 | snmp = &cmd->data.setadapterparms.data.snmp; |
| 4130 | |
| 4131 | if (cmd->hdr.return_code) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 4132 | QETH_CARD_TEXT_(card, 4, "scer1%i", cmd->hdr.return_code); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4133 | return 0; |
| 4134 | } |
| 4135 | if (cmd->data.setadapterparms.hdr.return_code) { |
| 4136 | cmd->hdr.return_code = |
| 4137 | cmd->data.setadapterparms.hdr.return_code; |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 4138 | QETH_CARD_TEXT_(card, 4, "scer2%i", cmd->hdr.return_code); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4139 | return 0; |
| 4140 | } |
| 4141 | data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data)); |
| 4142 | if (cmd->data.setadapterparms.hdr.seq_no == 1) |
| 4143 | data_len -= (__u16)((char *)&snmp->data - (char *)cmd); |
| 4144 | else |
| 4145 | data_len -= (__u16)((char *)&snmp->request - (char *)cmd); |
| 4146 | |
| 4147 | /* check if there is enough room in userspace */ |
| 4148 | if ((qinfo->udata_len - qinfo->udata_offset) < data_len) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 4149 | QETH_CARD_TEXT_(card, 4, "scer3%i", -ENOMEM); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4150 | cmd->hdr.return_code = -ENOMEM; |
| 4151 | return 0; |
| 4152 | } |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 4153 | QETH_CARD_TEXT_(card, 4, "snore%i", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4154 | cmd->data.setadapterparms.hdr.used_total); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 4155 | QETH_CARD_TEXT_(card, 4, "sseqn%i", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4156 | cmd->data.setadapterparms.hdr.seq_no); |
| 4157 | /*copy entries to user buffer*/ |
| 4158 | if (cmd->data.setadapterparms.hdr.seq_no == 1) { |
| 4159 | memcpy(qinfo->udata + qinfo->udata_offset, |
| 4160 | (char *)snmp, |
| 4161 | data_len + offsetof(struct qeth_snmp_cmd, data)); |
| 4162 | qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data); |
| 4163 | } else { |
| 4164 | memcpy(qinfo->udata + qinfo->udata_offset, |
| 4165 | (char *)&snmp->request, data_len); |
| 4166 | } |
| 4167 | qinfo->udata_offset += data_len; |
| 4168 | /* check if all replies received ... */ |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 4169 | QETH_CARD_TEXT_(card, 4, "srtot%i", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4170 | cmd->data.setadapterparms.hdr.used_total); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 4171 | QETH_CARD_TEXT_(card, 4, "srseq%i", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4172 | cmd->data.setadapterparms.hdr.seq_no); |
| 4173 | if (cmd->data.setadapterparms.hdr.seq_no < |
| 4174 | cmd->data.setadapterparms.hdr.used_total) |
| 4175 | return 1; |
| 4176 | return 0; |
| 4177 | } |
| 4178 | |
| 4179 | int qeth_snmp_command(struct qeth_card *card, char __user *udata) |
| 4180 | { |
| 4181 | struct qeth_cmd_buffer *iob; |
| 4182 | struct qeth_ipa_cmd *cmd; |
| 4183 | struct qeth_snmp_ureq *ureq; |
| 4184 | int req_len; |
| 4185 | struct qeth_arp_query_info qinfo = {0, }; |
| 4186 | int rc = 0; |
| 4187 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 4188 | QETH_CARD_TEXT(card, 3, "snmpcmd"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4189 | |
| 4190 | if (card->info.guestlan) |
| 4191 | return -EOPNOTSUPP; |
| 4192 | |
| 4193 | if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) && |
| 4194 | (!card->options.layer2)) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4195 | return -EOPNOTSUPP; |
| 4196 | } |
| 4197 | /* skip 4 bytes (data_len struct member) to get req_len */ |
| 4198 | if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int))) |
| 4199 | return -EFAULT; |
Julia Lawall | 4986f3f | 2010-07-22 23:15:09 +0000 | [diff] [blame] | 4200 | ureq = memdup_user(udata, req_len + sizeof(struct qeth_snmp_ureq_hdr)); |
| 4201 | if (IS_ERR(ureq)) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 4202 | QETH_CARD_TEXT(card, 2, "snmpnome"); |
Julia Lawall | 4986f3f | 2010-07-22 23:15:09 +0000 | [diff] [blame] | 4203 | return PTR_ERR(ureq); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4204 | } |
| 4205 | qinfo.udata_len = ureq->hdr.data_len; |
| 4206 | qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL); |
| 4207 | if (!qinfo.udata) { |
| 4208 | kfree(ureq); |
| 4209 | return -ENOMEM; |
| 4210 | } |
| 4211 | qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr); |
| 4212 | |
| 4213 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL, |
| 4214 | QETH_SNMP_SETADP_CMDLENGTH + req_len); |
| 4215 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| 4216 | memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len); |
| 4217 | rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len, |
| 4218 | qeth_snmp_command_cb, (void *)&qinfo); |
| 4219 | if (rc) |
Frank Blaschka | 14cc21b | 2008-06-06 12:37:46 +0200 | [diff] [blame] | 4220 | QETH_DBF_MESSAGE(2, "SNMP command failed on %s: (0x%x)\n", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4221 | QETH_CARD_IFNAME(card), rc); |
| 4222 | else { |
| 4223 | if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) |
| 4224 | rc = -EFAULT; |
| 4225 | } |
| 4226 | |
| 4227 | kfree(ureq); |
| 4228 | kfree(qinfo.udata); |
| 4229 | return rc; |
| 4230 | } |
| 4231 | EXPORT_SYMBOL_GPL(qeth_snmp_command); |
| 4232 | |
| 4233 | static inline int qeth_get_qdio_q_format(struct qeth_card *card) |
| 4234 | { |
| 4235 | switch (card->info.type) { |
| 4236 | case QETH_CARD_TYPE_IQD: |
| 4237 | return 2; |
| 4238 | default: |
| 4239 | return 0; |
| 4240 | } |
| 4241 | } |
| 4242 | |
Ursula Braun | d0ff1f5 | 2011-02-02 06:04:34 +0000 | [diff] [blame] | 4243 | static void qeth_determine_capabilities(struct qeth_card *card) |
| 4244 | { |
| 4245 | int rc; |
| 4246 | int length; |
| 4247 | char *prcd; |
| 4248 | struct ccw_device *ddev; |
| 4249 | int ddev_offline = 0; |
| 4250 | |
| 4251 | QETH_DBF_TEXT(SETUP, 2, "detcapab"); |
| 4252 | ddev = CARD_DDEV(card); |
| 4253 | if (!ddev->online) { |
| 4254 | ddev_offline = 1; |
| 4255 | rc = ccw_device_set_online(ddev); |
| 4256 | if (rc) { |
| 4257 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
| 4258 | goto out; |
| 4259 | } |
| 4260 | } |
| 4261 | |
| 4262 | rc = qeth_read_conf_data(card, (void **) &prcd, &length); |
| 4263 | if (rc) { |
| 4264 | QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n", |
| 4265 | dev_name(&card->gdev->dev), rc); |
| 4266 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); |
| 4267 | goto out_offline; |
| 4268 | } |
| 4269 | qeth_configure_unitaddr(card, prcd); |
| 4270 | qeth_configure_blkt_default(card, prcd); |
| 4271 | kfree(prcd); |
| 4272 | |
| 4273 | rc = qdio_get_ssqd_desc(ddev, &card->ssqd); |
| 4274 | if (rc) |
| 4275 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); |
| 4276 | |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 4277 | QETH_DBF_TEXT_(SETUP, 2, "qfmt%d", card->ssqd.qfmt); |
| 4278 | QETH_DBF_TEXT_(SETUP, 2, "%d", card->ssqd.qdioac1); |
| 4279 | QETH_DBF_TEXT_(SETUP, 2, "%d", card->ssqd.qdioac3); |
| 4280 | QETH_DBF_TEXT_(SETUP, 2, "icnt%d", card->ssqd.icnt); |
| 4281 | if (!((card->ssqd.qfmt != QDIO_IQDIO_QFMT) || |
| 4282 | ((card->ssqd.qdioac1 & CHSC_AC1_INITIATE_INPUTQ) == 0) || |
| 4283 | ((card->ssqd.qdioac3 & CHSC_AC3_FORMAT2_CQ_AVAILABLE) == 0))) { |
| 4284 | dev_info(&card->gdev->dev, |
| 4285 | "Completion Queueing supported\n"); |
| 4286 | } else { |
| 4287 | card->options.cq = QETH_CQ_NOTAVAILABLE; |
| 4288 | } |
| 4289 | |
| 4290 | |
Ursula Braun | d0ff1f5 | 2011-02-02 06:04:34 +0000 | [diff] [blame] | 4291 | out_offline: |
| 4292 | if (ddev_offline == 1) |
| 4293 | ccw_device_set_offline(ddev); |
| 4294 | out: |
| 4295 | return; |
| 4296 | } |
| 4297 | |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 4298 | static inline void qeth_qdio_establish_cq(struct qeth_card *card, |
| 4299 | struct qdio_buffer **in_sbal_ptrs, |
| 4300 | void (**queue_start_poll) (struct ccw_device *, int, unsigned long)) { |
| 4301 | int i; |
| 4302 | |
| 4303 | if (card->options.cq == QETH_CQ_ENABLED) { |
| 4304 | int offset = QDIO_MAX_BUFFERS_PER_Q * |
| 4305 | (card->qdio.no_in_queues - 1); |
| 4306 | i = QDIO_MAX_BUFFERS_PER_Q * (card->qdio.no_in_queues - 1); |
| 4307 | for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) { |
| 4308 | in_sbal_ptrs[offset + i] = (struct qdio_buffer *) |
| 4309 | virt_to_phys(card->qdio.c_q->bufs[i].buffer); |
| 4310 | } |
| 4311 | |
| 4312 | queue_start_poll[card->qdio.no_in_queues - 1] = NULL; |
| 4313 | } |
| 4314 | } |
| 4315 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4316 | static int qeth_qdio_establish(struct qeth_card *card) |
| 4317 | { |
| 4318 | struct qdio_initialize init_data; |
| 4319 | char *qib_param_field; |
| 4320 | struct qdio_buffer **in_sbal_ptrs; |
frank.blaschka@de.ibm.com | 104ea55 | 2011-08-08 01:33:55 +0000 | [diff] [blame] | 4321 | void (**queue_start_poll) (struct ccw_device *, int, unsigned long); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4322 | struct qdio_buffer **out_sbal_ptrs; |
| 4323 | int i, j, k; |
| 4324 | int rc = 0; |
| 4325 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4326 | QETH_DBF_TEXT(SETUP, 2, "qdioest"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4327 | |
| 4328 | qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char), |
| 4329 | GFP_KERNEL); |
frank.blaschka@de.ibm.com | 104ea55 | 2011-08-08 01:33:55 +0000 | [diff] [blame] | 4330 | if (!qib_param_field) { |
| 4331 | rc = -ENOMEM; |
| 4332 | goto out_free_nothing; |
| 4333 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4334 | |
| 4335 | qeth_create_qib_param_field(card, qib_param_field); |
| 4336 | qeth_create_qib_param_field_blkt(card, qib_param_field); |
| 4337 | |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 4338 | in_sbal_ptrs = kmalloc(card->qdio.no_in_queues * |
| 4339 | QDIO_MAX_BUFFERS_PER_Q * sizeof(void *), |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4340 | GFP_KERNEL); |
| 4341 | if (!in_sbal_ptrs) { |
frank.blaschka@de.ibm.com | 104ea55 | 2011-08-08 01:33:55 +0000 | [diff] [blame] | 4342 | rc = -ENOMEM; |
| 4343 | goto out_free_qib_param; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4344 | } |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 4345 | for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4346 | in_sbal_ptrs[i] = (struct qdio_buffer *) |
| 4347 | virt_to_phys(card->qdio.in_q->bufs[i].buffer); |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 4348 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4349 | |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 4350 | queue_start_poll = kzalloc(sizeof(void *) * card->qdio.no_in_queues, |
| 4351 | GFP_KERNEL); |
frank.blaschka@de.ibm.com | 104ea55 | 2011-08-08 01:33:55 +0000 | [diff] [blame] | 4352 | if (!queue_start_poll) { |
| 4353 | rc = -ENOMEM; |
| 4354 | goto out_free_in_sbals; |
| 4355 | } |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 4356 | for (i = 0; i < card->qdio.no_in_queues; ++i) |
| 4357 | queue_start_poll[i] = card->discipline.start_poll; |
| 4358 | |
| 4359 | qeth_qdio_establish_cq(card, in_sbal_ptrs, queue_start_poll); |
frank.blaschka@de.ibm.com | 104ea55 | 2011-08-08 01:33:55 +0000 | [diff] [blame] | 4360 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4361 | out_sbal_ptrs = |
| 4362 | kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q * |
| 4363 | sizeof(void *), GFP_KERNEL); |
| 4364 | if (!out_sbal_ptrs) { |
frank.blaschka@de.ibm.com | 104ea55 | 2011-08-08 01:33:55 +0000 | [diff] [blame] | 4365 | rc = -ENOMEM; |
| 4366 | goto out_free_queue_start_poll; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4367 | } |
| 4368 | for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i) |
| 4369 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) { |
| 4370 | out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys( |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 4371 | card->qdio.out_qs[i]->bufs[j]->buffer); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4372 | } |
| 4373 | |
| 4374 | memset(&init_data, 0, sizeof(struct qdio_initialize)); |
| 4375 | init_data.cdev = CARD_DDEV(card); |
| 4376 | init_data.q_format = qeth_get_qdio_q_format(card); |
| 4377 | init_data.qib_param_field_format = 0; |
| 4378 | init_data.qib_param_field = qib_param_field; |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 4379 | init_data.no_input_qs = card->qdio.no_in_queues; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4380 | init_data.no_output_qs = card->qdio.no_out_queues; |
| 4381 | init_data.input_handler = card->discipline.input_handler; |
| 4382 | init_data.output_handler = card->discipline.output_handler; |
frank.blaschka@de.ibm.com | 104ea55 | 2011-08-08 01:33:55 +0000 | [diff] [blame] | 4383 | init_data.queue_start_poll = queue_start_poll; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4384 | init_data.int_parm = (unsigned long) card; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4385 | init_data.input_sbal_addr_array = (void **) in_sbal_ptrs; |
| 4386 | init_data.output_sbal_addr_array = (void **) out_sbal_ptrs; |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 4387 | init_data.output_sbal_state_array = card->qdio.out_bufstates; |
Jan Glauber | 3d6c76f | 2011-01-05 12:47:50 +0100 | [diff] [blame] | 4388 | init_data.scan_threshold = |
| 4389 | (card->info.type == QETH_CARD_TYPE_IQD) ? 8 : 32; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4390 | |
| 4391 | if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED, |
| 4392 | QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) { |
Jan Glauber | cc961d4 | 2010-05-17 10:00:19 +0200 | [diff] [blame] | 4393 | rc = qdio_allocate(&init_data); |
| 4394 | if (rc) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4395 | atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); |
Jan Glauber | cc961d4 | 2010-05-17 10:00:19 +0200 | [diff] [blame] | 4396 | goto out; |
| 4397 | } |
| 4398 | rc = qdio_establish(&init_data); |
| 4399 | if (rc) { |
| 4400 | atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); |
| 4401 | qdio_free(CARD_DDEV(card)); |
| 4402 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4403 | } |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 4404 | |
| 4405 | switch (card->options.cq) { |
| 4406 | case QETH_CQ_ENABLED: |
| 4407 | dev_info(&card->gdev->dev, "Completion Queue support enabled"); |
| 4408 | break; |
| 4409 | case QETH_CQ_DISABLED: |
| 4410 | dev_info(&card->gdev->dev, "Completion Queue support disabled"); |
| 4411 | break; |
| 4412 | default: |
| 4413 | break; |
| 4414 | } |
Jan Glauber | cc961d4 | 2010-05-17 10:00:19 +0200 | [diff] [blame] | 4415 | out: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4416 | kfree(out_sbal_ptrs); |
frank.blaschka@de.ibm.com | 104ea55 | 2011-08-08 01:33:55 +0000 | [diff] [blame] | 4417 | out_free_queue_start_poll: |
| 4418 | kfree(queue_start_poll); |
| 4419 | out_free_in_sbals: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4420 | kfree(in_sbal_ptrs); |
frank.blaschka@de.ibm.com | 104ea55 | 2011-08-08 01:33:55 +0000 | [diff] [blame] | 4421 | out_free_qib_param: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4422 | kfree(qib_param_field); |
frank.blaschka@de.ibm.com | 104ea55 | 2011-08-08 01:33:55 +0000 | [diff] [blame] | 4423 | out_free_nothing: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4424 | return rc; |
| 4425 | } |
| 4426 | |
| 4427 | static void qeth_core_free_card(struct qeth_card *card) |
| 4428 | { |
| 4429 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4430 | QETH_DBF_TEXT(SETUP, 2, "freecrd"); |
| 4431 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4432 | qeth_clean_channel(&card->read); |
| 4433 | qeth_clean_channel(&card->write); |
| 4434 | if (card->dev) |
| 4435 | free_netdev(card->dev); |
| 4436 | kfree(card->ip_tbd_list); |
| 4437 | qeth_free_qdio_buffers(card); |
Martin Schwidefsky | 6bcac50 | 2008-12-25 13:38:49 +0100 | [diff] [blame] | 4438 | unregister_service_level(&card->qeth_service_level); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4439 | kfree(card); |
| 4440 | } |
| 4441 | |
| 4442 | static struct ccw_device_id qeth_ids[] = { |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 4443 | {CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01), |
| 4444 | .driver_info = QETH_CARD_TYPE_OSD}, |
| 4445 | {CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05), |
| 4446 | .driver_info = QETH_CARD_TYPE_IQD}, |
| 4447 | {CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06), |
| 4448 | .driver_info = QETH_CARD_TYPE_OSN}, |
| 4449 | {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03), |
| 4450 | .driver_info = QETH_CARD_TYPE_OSM}, |
| 4451 | {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02), |
| 4452 | .driver_info = QETH_CARD_TYPE_OSX}, |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4453 | {}, |
| 4454 | }; |
| 4455 | MODULE_DEVICE_TABLE(ccw, qeth_ids); |
| 4456 | |
| 4457 | static struct ccw_driver qeth_ccw_driver = { |
Sebastian Ott | 3bda058 | 2011-03-23 10:16:02 +0100 | [diff] [blame] | 4458 | .driver = { |
Sebastian Ott | 3e70b3b | 2011-05-12 18:45:03 +0000 | [diff] [blame] | 4459 | .owner = THIS_MODULE, |
Sebastian Ott | 3bda058 | 2011-03-23 10:16:02 +0100 | [diff] [blame] | 4460 | .name = "qeth", |
| 4461 | }, |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4462 | .ids = qeth_ids, |
| 4463 | .probe = ccwgroup_probe_ccwdev, |
| 4464 | .remove = ccwgroup_remove_ccwdev, |
| 4465 | }; |
| 4466 | |
| 4467 | static int qeth_core_driver_group(const char *buf, struct device *root_dev, |
| 4468 | unsigned long driver_id) |
| 4469 | { |
Ursula Braun | 022b660 | 2008-04-24 10:15:20 +0200 | [diff] [blame] | 4470 | return ccwgroup_create_from_string(root_dev, driver_id, |
| 4471 | &qeth_ccw_driver, 3, buf); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4472 | } |
| 4473 | |
| 4474 | int qeth_core_hardsetup_card(struct qeth_card *card) |
| 4475 | { |
Ursula Braun | aa90922 | 2009-11-12 00:11:43 +0000 | [diff] [blame] | 4476 | int retries = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4477 | int rc; |
| 4478 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4479 | QETH_DBF_TEXT(SETUP, 2, "hrdsetup"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4480 | atomic_set(&card->force_alloc_skb, 0); |
Ursula Braun | d0ff1f5 | 2011-02-02 06:04:34 +0000 | [diff] [blame] | 4481 | qeth_get_channel_path_desc(card); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4482 | retry: |
Ursula Braun | aa90922 | 2009-11-12 00:11:43 +0000 | [diff] [blame] | 4483 | if (retries) |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 4484 | QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n", |
| 4485 | dev_name(&card->gdev->dev)); |
Ursula Braun | aa90922 | 2009-11-12 00:11:43 +0000 | [diff] [blame] | 4486 | ccw_device_set_offline(CARD_DDEV(card)); |
| 4487 | ccw_device_set_offline(CARD_WDEV(card)); |
| 4488 | ccw_device_set_offline(CARD_RDEV(card)); |
| 4489 | rc = ccw_device_set_online(CARD_RDEV(card)); |
| 4490 | if (rc) |
| 4491 | goto retriable; |
| 4492 | rc = ccw_device_set_online(CARD_WDEV(card)); |
| 4493 | if (rc) |
| 4494 | goto retriable; |
| 4495 | rc = ccw_device_set_online(CARD_DDEV(card)); |
| 4496 | if (rc) |
| 4497 | goto retriable; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4498 | rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD); |
Ursula Braun | aa90922 | 2009-11-12 00:11:43 +0000 | [diff] [blame] | 4499 | retriable: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4500 | if (rc == -ERESTARTSYS) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4501 | QETH_DBF_TEXT(SETUP, 2, "break1"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4502 | return rc; |
| 4503 | } else if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4504 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
Ursula Braun | aa90922 | 2009-11-12 00:11:43 +0000 | [diff] [blame] | 4505 | if (++retries > 3) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4506 | goto out; |
| 4507 | else |
| 4508 | goto retry; |
| 4509 | } |
Ursula Braun | d0ff1f5 | 2011-02-02 06:04:34 +0000 | [diff] [blame] | 4510 | qeth_determine_capabilities(card); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4511 | qeth_init_tokens(card); |
| 4512 | qeth_init_func_level(card); |
| 4513 | rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb); |
| 4514 | if (rc == -ERESTARTSYS) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4515 | QETH_DBF_TEXT(SETUP, 2, "break2"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4516 | return rc; |
| 4517 | } else if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4518 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4519 | if (--retries < 0) |
| 4520 | goto out; |
| 4521 | else |
| 4522 | goto retry; |
| 4523 | } |
| 4524 | rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb); |
| 4525 | if (rc == -ERESTARTSYS) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4526 | QETH_DBF_TEXT(SETUP, 2, "break3"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4527 | return rc; |
| 4528 | } else if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4529 | QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4530 | if (--retries < 0) |
| 4531 | goto out; |
| 4532 | else |
| 4533 | goto retry; |
| 4534 | } |
Ursula Braun | 908abbb | 2010-07-22 23:15:06 +0000 | [diff] [blame] | 4535 | card->read_or_write_problem = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4536 | rc = qeth_mpc_initialize(card); |
| 4537 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4538 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4539 | goto out; |
| 4540 | } |
Frank Blaschka | 1da74b1 | 2011-05-12 18:45:02 +0000 | [diff] [blame] | 4541 | |
| 4542 | card->options.ipa4.supported_funcs = 0; |
| 4543 | card->options.adp.supported_funcs = 0; |
| 4544 | card->info.diagass_support = 0; |
| 4545 | qeth_query_ipassists(card, QETH_PROT_IPV4); |
| 4546 | if (qeth_is_supported(card, IPA_SETADAPTERPARMS)) |
| 4547 | qeth_query_setadapterparms(card); |
| 4548 | if (qeth_adp_supported(card, IPA_SETADP_SET_DIAG_ASSIST)) |
| 4549 | qeth_query_setdiagass(card); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4550 | return 0; |
| 4551 | out: |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 4552 | dev_warn(&card->gdev->dev, "The qeth device driver failed to recover " |
| 4553 | "an error on the device\n"); |
| 4554 | QETH_DBF_MESSAGE(2, "%s Initialization in hardsetup failed! rc=%d\n", |
| 4555 | dev_name(&card->gdev->dev), rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4556 | return rc; |
| 4557 | } |
| 4558 | EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card); |
| 4559 | |
| 4560 | static inline int qeth_create_skb_frag(struct qdio_buffer_element *element, |
| 4561 | struct sk_buff **pskb, int offset, int *pfrag, int data_len) |
| 4562 | { |
| 4563 | struct page *page = virt_to_page(element->addr); |
| 4564 | if (*pskb == NULL) { |
| 4565 | /* the upper protocol layers assume that there is data in the |
| 4566 | * skb itself. Copy a small amount (64 bytes) to make them |
| 4567 | * happy. */ |
| 4568 | *pskb = dev_alloc_skb(64 + ETH_HLEN); |
| 4569 | if (!(*pskb)) |
| 4570 | return -ENOMEM; |
| 4571 | skb_reserve(*pskb, ETH_HLEN); |
| 4572 | if (data_len <= 64) { |
| 4573 | memcpy(skb_put(*pskb, data_len), element->addr + offset, |
| 4574 | data_len); |
| 4575 | } else { |
| 4576 | get_page(page); |
| 4577 | memcpy(skb_put(*pskb, 64), element->addr + offset, 64); |
| 4578 | skb_fill_page_desc(*pskb, *pfrag, page, offset + 64, |
| 4579 | data_len - 64); |
| 4580 | (*pskb)->data_len += data_len - 64; |
| 4581 | (*pskb)->len += data_len - 64; |
| 4582 | (*pskb)->truesize += data_len - 64; |
| 4583 | (*pfrag)++; |
| 4584 | } |
| 4585 | } else { |
| 4586 | get_page(page); |
| 4587 | skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len); |
| 4588 | (*pskb)->data_len += data_len; |
| 4589 | (*pskb)->len += data_len; |
| 4590 | (*pskb)->truesize += data_len; |
| 4591 | (*pfrag)++; |
| 4592 | } |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 4593 | |
| 4594 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4595 | return 0; |
| 4596 | } |
| 4597 | |
| 4598 | struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card, |
| 4599 | struct qdio_buffer *buffer, |
| 4600 | struct qdio_buffer_element **__element, int *__offset, |
| 4601 | struct qeth_hdr **hdr) |
| 4602 | { |
| 4603 | struct qdio_buffer_element *element = *__element; |
| 4604 | int offset = *__offset; |
| 4605 | struct sk_buff *skb = NULL; |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 4606 | int skb_len = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4607 | void *data_ptr; |
| 4608 | int data_len; |
| 4609 | int headroom = 0; |
| 4610 | int use_rx_sg = 0; |
| 4611 | int frag = 0; |
| 4612 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4613 | /* qeth_hdr must not cross element boundaries */ |
| 4614 | if (element->length < offset + sizeof(struct qeth_hdr)) { |
| 4615 | if (qeth_is_last_sbale(element)) |
| 4616 | return NULL; |
| 4617 | element++; |
| 4618 | offset = 0; |
| 4619 | if (element->length < sizeof(struct qeth_hdr)) |
| 4620 | return NULL; |
| 4621 | } |
| 4622 | *hdr = element->addr + offset; |
| 4623 | |
| 4624 | offset += sizeof(struct qeth_hdr); |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 4625 | switch ((*hdr)->hdr.l2.id) { |
| 4626 | case QETH_HEADER_TYPE_LAYER2: |
| 4627 | skb_len = (*hdr)->hdr.l2.pkt_length; |
| 4628 | break; |
| 4629 | case QETH_HEADER_TYPE_LAYER3: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4630 | skb_len = (*hdr)->hdr.l3.length; |
Frank Blaschka | b403e68 | 2008-04-01 10:26:59 +0200 | [diff] [blame] | 4631 | if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) || |
| 4632 | (card->info.link_type == QETH_LINK_TYPE_HSTR)) |
| 4633 | headroom = TR_HLEN; |
| 4634 | else |
| 4635 | headroom = ETH_HLEN; |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 4636 | break; |
| 4637 | case QETH_HEADER_TYPE_OSN: |
| 4638 | skb_len = (*hdr)->hdr.osn.pdu_length; |
| 4639 | headroom = sizeof(struct qeth_hdr); |
| 4640 | break; |
| 4641 | default: |
| 4642 | break; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4643 | } |
| 4644 | |
| 4645 | if (!skb_len) |
| 4646 | return NULL; |
| 4647 | |
| 4648 | if ((skb_len >= card->options.rx_sg_cb) && |
| 4649 | (!(card->info.type == QETH_CARD_TYPE_OSN)) && |
| 4650 | (!atomic_read(&card->force_alloc_skb))) { |
| 4651 | use_rx_sg = 1; |
| 4652 | } else { |
| 4653 | skb = dev_alloc_skb(skb_len + headroom); |
| 4654 | if (!skb) |
| 4655 | goto no_mem; |
| 4656 | if (headroom) |
| 4657 | skb_reserve(skb, headroom); |
| 4658 | } |
| 4659 | |
| 4660 | data_ptr = element->addr + offset; |
| 4661 | while (skb_len) { |
| 4662 | data_len = min(skb_len, (int)(element->length - offset)); |
| 4663 | if (data_len) { |
| 4664 | if (use_rx_sg) { |
| 4665 | if (qeth_create_skb_frag(element, &skb, offset, |
| 4666 | &frag, data_len)) |
| 4667 | goto no_mem; |
| 4668 | } else { |
| 4669 | memcpy(skb_put(skb, data_len), data_ptr, |
| 4670 | data_len); |
| 4671 | } |
| 4672 | } |
| 4673 | skb_len -= data_len; |
| 4674 | if (skb_len) { |
| 4675 | if (qeth_is_last_sbale(element)) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 4676 | QETH_CARD_TEXT(card, 4, "unexeob"); |
Carsten Otte | efd5d9a | 2010-06-21 22:57:07 +0000 | [diff] [blame] | 4677 | QETH_CARD_HEX(card, 2, buffer, sizeof(void *)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4678 | dev_kfree_skb_any(skb); |
| 4679 | card->stats.rx_errors++; |
| 4680 | return NULL; |
| 4681 | } |
| 4682 | element++; |
| 4683 | offset = 0; |
| 4684 | data_ptr = element->addr; |
| 4685 | } else { |
| 4686 | offset += data_len; |
| 4687 | } |
| 4688 | } |
| 4689 | *__element = element; |
| 4690 | *__offset = offset; |
| 4691 | if (use_rx_sg && card->options.performance_stats) { |
| 4692 | card->perf_stats.sg_skbs_rx++; |
| 4693 | card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags; |
| 4694 | } |
| 4695 | return skb; |
| 4696 | no_mem: |
| 4697 | if (net_ratelimit()) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 4698 | QETH_CARD_TEXT(card, 2, "noskbmem"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4699 | } |
| 4700 | card->stats.rx_dropped++; |
| 4701 | return NULL; |
| 4702 | } |
| 4703 | EXPORT_SYMBOL_GPL(qeth_core_get_next_skb); |
| 4704 | |
| 4705 | static void qeth_unregister_dbf_views(void) |
| 4706 | { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4707 | int x; |
| 4708 | for (x = 0; x < QETH_DBF_INFOS; x++) { |
| 4709 | debug_unregister(qeth_dbf[x].id); |
| 4710 | qeth_dbf[x].id = NULL; |
| 4711 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4712 | } |
| 4713 | |
Carsten Otte | 8e96c51 | 2010-06-21 22:57:03 +0000 | [diff] [blame] | 4714 | void qeth_dbf_longtext(debug_info_t *id, int level, char *fmt, ...) |
Peter Tiedemann | cd02321 | 2008-04-24 10:15:21 +0200 | [diff] [blame] | 4715 | { |
| 4716 | char dbf_txt_buf[32]; |
Peter Tiedemann | 345aa66 | 2008-06-06 12:37:47 +0200 | [diff] [blame] | 4717 | va_list args; |
Peter Tiedemann | cd02321 | 2008-04-24 10:15:21 +0200 | [diff] [blame] | 4718 | |
Carsten Otte | 8e96c51 | 2010-06-21 22:57:03 +0000 | [diff] [blame] | 4719 | if (level > id->level) |
Peter Tiedemann | cd02321 | 2008-04-24 10:15:21 +0200 | [diff] [blame] | 4720 | return; |
Peter Tiedemann | 345aa66 | 2008-06-06 12:37:47 +0200 | [diff] [blame] | 4721 | va_start(args, fmt); |
| 4722 | vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args); |
| 4723 | va_end(args); |
Carsten Otte | 8e96c51 | 2010-06-21 22:57:03 +0000 | [diff] [blame] | 4724 | debug_text_event(id, level, dbf_txt_buf); |
Peter Tiedemann | cd02321 | 2008-04-24 10:15:21 +0200 | [diff] [blame] | 4725 | } |
| 4726 | EXPORT_SYMBOL_GPL(qeth_dbf_longtext); |
| 4727 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4728 | static int qeth_register_dbf_views(void) |
| 4729 | { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4730 | int ret; |
| 4731 | int x; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4732 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4733 | for (x = 0; x < QETH_DBF_INFOS; x++) { |
| 4734 | /* register the areas */ |
| 4735 | qeth_dbf[x].id = debug_register(qeth_dbf[x].name, |
| 4736 | qeth_dbf[x].pages, |
| 4737 | qeth_dbf[x].areas, |
| 4738 | qeth_dbf[x].len); |
| 4739 | if (qeth_dbf[x].id == NULL) { |
| 4740 | qeth_unregister_dbf_views(); |
| 4741 | return -ENOMEM; |
| 4742 | } |
| 4743 | |
| 4744 | /* register a view */ |
| 4745 | ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view); |
| 4746 | if (ret) { |
| 4747 | qeth_unregister_dbf_views(); |
| 4748 | return ret; |
| 4749 | } |
| 4750 | |
| 4751 | /* set a passing level */ |
| 4752 | debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4753 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4754 | |
| 4755 | return 0; |
| 4756 | } |
| 4757 | |
| 4758 | int qeth_core_load_discipline(struct qeth_card *card, |
| 4759 | enum qeth_discipline_id discipline) |
| 4760 | { |
| 4761 | int rc = 0; |
| 4762 | switch (discipline) { |
| 4763 | case QETH_DISCIPLINE_LAYER3: |
| 4764 | card->discipline.ccwgdriver = try_then_request_module( |
| 4765 | symbol_get(qeth_l3_ccwgroup_driver), |
| 4766 | "qeth_l3"); |
| 4767 | break; |
| 4768 | case QETH_DISCIPLINE_LAYER2: |
| 4769 | card->discipline.ccwgdriver = try_then_request_module( |
| 4770 | symbol_get(qeth_l2_ccwgroup_driver), |
| 4771 | "qeth_l2"); |
| 4772 | break; |
| 4773 | } |
| 4774 | if (!card->discipline.ccwgdriver) { |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 4775 | dev_err(&card->gdev->dev, "There is no kernel module to " |
| 4776 | "support discipline %d\n", discipline); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4777 | rc = -EINVAL; |
| 4778 | } |
| 4779 | return rc; |
| 4780 | } |
| 4781 | |
| 4782 | void qeth_core_free_discipline(struct qeth_card *card) |
| 4783 | { |
| 4784 | if (card->options.layer2) |
| 4785 | symbol_put(qeth_l2_ccwgroup_driver); |
| 4786 | else |
| 4787 | symbol_put(qeth_l3_ccwgroup_driver); |
| 4788 | card->discipline.ccwgdriver = NULL; |
| 4789 | } |
| 4790 | |
| 4791 | static int qeth_core_probe_device(struct ccwgroup_device *gdev) |
| 4792 | { |
| 4793 | struct qeth_card *card; |
| 4794 | struct device *dev; |
| 4795 | int rc; |
| 4796 | unsigned long flags; |
Carsten Otte | af03906 | 2010-06-21 22:57:04 +0000 | [diff] [blame] | 4797 | char dbf_name[20]; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4798 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4799 | QETH_DBF_TEXT(SETUP, 2, "probedev"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4800 | |
| 4801 | dev = &gdev->dev; |
| 4802 | if (!get_device(dev)) |
| 4803 | return -ENODEV; |
| 4804 | |
Kay Sievers | 2a0217d | 2008-10-10 21:33:09 +0200 | [diff] [blame] | 4805 | QETH_DBF_TEXT_(SETUP, 2, "%s", dev_name(&gdev->dev)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4806 | |
| 4807 | card = qeth_alloc_card(); |
| 4808 | if (!card) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4809 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4810 | rc = -ENOMEM; |
| 4811 | goto err_dev; |
| 4812 | } |
Carsten Otte | af03906 | 2010-06-21 22:57:04 +0000 | [diff] [blame] | 4813 | |
| 4814 | snprintf(dbf_name, sizeof(dbf_name), "qeth_card_%s", |
| 4815 | dev_name(&gdev->dev)); |
| 4816 | card->debug = debug_register(dbf_name, 2, 1, 8); |
| 4817 | if (!card->debug) { |
| 4818 | QETH_DBF_TEXT_(SETUP, 2, "%s", "qcdbf"); |
| 4819 | rc = -ENOMEM; |
| 4820 | goto err_card; |
| 4821 | } |
| 4822 | debug_register_view(card->debug, &debug_hex_ascii_view); |
| 4823 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4824 | card->read.ccwdev = gdev->cdev[0]; |
| 4825 | card->write.ccwdev = gdev->cdev[1]; |
| 4826 | card->data.ccwdev = gdev->cdev[2]; |
| 4827 | dev_set_drvdata(&gdev->dev, card); |
| 4828 | card->gdev = gdev; |
| 4829 | gdev->cdev[0]->handler = qeth_irq; |
| 4830 | gdev->cdev[1]->handler = qeth_irq; |
| 4831 | gdev->cdev[2]->handler = qeth_irq; |
| 4832 | |
| 4833 | rc = qeth_determine_card_type(card); |
| 4834 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4835 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
Carsten Otte | af03906 | 2010-06-21 22:57:04 +0000 | [diff] [blame] | 4836 | goto err_dbf; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4837 | } |
| 4838 | rc = qeth_setup_card(card); |
| 4839 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4840 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
Carsten Otte | af03906 | 2010-06-21 22:57:04 +0000 | [diff] [blame] | 4841 | goto err_dbf; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4842 | } |
| 4843 | |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 4844 | if (card->info.type == QETH_CARD_TYPE_OSN) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4845 | rc = qeth_core_create_osn_attributes(dev); |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 4846 | else |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4847 | rc = qeth_core_create_device_attributes(dev); |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 4848 | if (rc) |
Carsten Otte | af03906 | 2010-06-21 22:57:04 +0000 | [diff] [blame] | 4849 | goto err_dbf; |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 4850 | switch (card->info.type) { |
| 4851 | case QETH_CARD_TYPE_OSN: |
| 4852 | case QETH_CARD_TYPE_OSM: |
| 4853 | rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4854 | if (rc) |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 4855 | goto err_attr; |
| 4856 | rc = card->discipline.ccwgdriver->probe(card->gdev); |
| 4857 | if (rc) |
| 4858 | goto err_disc; |
| 4859 | case QETH_CARD_TYPE_OSD: |
| 4860 | case QETH_CARD_TYPE_OSX: |
| 4861 | default: |
| 4862 | break; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4863 | } |
| 4864 | |
| 4865 | write_lock_irqsave(&qeth_core_card_list.rwlock, flags); |
| 4866 | list_add_tail(&card->list, &qeth_core_card_list.list); |
| 4867 | write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 4868 | |
| 4869 | qeth_determine_capabilities(card); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4870 | return 0; |
| 4871 | |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 4872 | err_disc: |
| 4873 | qeth_core_free_discipline(card); |
| 4874 | err_attr: |
| 4875 | if (card->info.type == QETH_CARD_TYPE_OSN) |
| 4876 | qeth_core_remove_osn_attributes(dev); |
| 4877 | else |
| 4878 | qeth_core_remove_device_attributes(dev); |
Carsten Otte | af03906 | 2010-06-21 22:57:04 +0000 | [diff] [blame] | 4879 | err_dbf: |
| 4880 | debug_unregister(card->debug); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4881 | err_card: |
| 4882 | qeth_core_free_card(card); |
| 4883 | err_dev: |
| 4884 | put_device(dev); |
| 4885 | return rc; |
| 4886 | } |
| 4887 | |
| 4888 | static void qeth_core_remove_device(struct ccwgroup_device *gdev) |
| 4889 | { |
| 4890 | unsigned long flags; |
| 4891 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| 4892 | |
Ursula Braun | 28a7e4c | 2008-09-19 12:56:03 +0200 | [diff] [blame] | 4893 | QETH_DBF_TEXT(SETUP, 2, "removedv"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4894 | |
| 4895 | if (card->info.type == QETH_CARD_TYPE_OSN) { |
| 4896 | qeth_core_remove_osn_attributes(&gdev->dev); |
| 4897 | } else { |
| 4898 | qeth_core_remove_device_attributes(&gdev->dev); |
| 4899 | } |
Ursula Braun | 9dc48cc | 2010-07-22 23:15:05 +0000 | [diff] [blame] | 4900 | |
| 4901 | if (card->discipline.ccwgdriver) { |
| 4902 | card->discipline.ccwgdriver->remove(gdev); |
| 4903 | qeth_core_free_discipline(card); |
| 4904 | } |
| 4905 | |
Carsten Otte | af03906 | 2010-06-21 22:57:04 +0000 | [diff] [blame] | 4906 | debug_unregister(card->debug); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4907 | write_lock_irqsave(&qeth_core_card_list.rwlock, flags); |
| 4908 | list_del(&card->list); |
| 4909 | write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); |
| 4910 | qeth_core_free_card(card); |
| 4911 | dev_set_drvdata(&gdev->dev, NULL); |
| 4912 | put_device(&gdev->dev); |
| 4913 | return; |
| 4914 | } |
| 4915 | |
| 4916 | static int qeth_core_set_online(struct ccwgroup_device *gdev) |
| 4917 | { |
| 4918 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| 4919 | int rc = 0; |
| 4920 | int def_discipline; |
| 4921 | |
| 4922 | if (!card->discipline.ccwgdriver) { |
| 4923 | if (card->info.type == QETH_CARD_TYPE_IQD) |
| 4924 | def_discipline = QETH_DISCIPLINE_LAYER3; |
| 4925 | else |
| 4926 | def_discipline = QETH_DISCIPLINE_LAYER2; |
| 4927 | rc = qeth_core_load_discipline(card, def_discipline); |
| 4928 | if (rc) |
| 4929 | goto err; |
| 4930 | rc = card->discipline.ccwgdriver->probe(card->gdev); |
| 4931 | if (rc) |
| 4932 | goto err; |
| 4933 | } |
| 4934 | rc = card->discipline.ccwgdriver->set_online(gdev); |
| 4935 | err: |
| 4936 | return rc; |
| 4937 | } |
| 4938 | |
| 4939 | static int qeth_core_set_offline(struct ccwgroup_device *gdev) |
| 4940 | { |
| 4941 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| 4942 | return card->discipline.ccwgdriver->set_offline(gdev); |
| 4943 | } |
| 4944 | |
| 4945 | static void qeth_core_shutdown(struct ccwgroup_device *gdev) |
| 4946 | { |
| 4947 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| 4948 | if (card->discipline.ccwgdriver && |
| 4949 | card->discipline.ccwgdriver->shutdown) |
| 4950 | card->discipline.ccwgdriver->shutdown(gdev); |
| 4951 | } |
| 4952 | |
Frank Blaschka | bbcfcdc | 2009-06-16 10:30:31 +0200 | [diff] [blame] | 4953 | static int qeth_core_prepare(struct ccwgroup_device *gdev) |
| 4954 | { |
| 4955 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| 4956 | if (card->discipline.ccwgdriver && |
| 4957 | card->discipline.ccwgdriver->prepare) |
| 4958 | return card->discipline.ccwgdriver->prepare(gdev); |
| 4959 | return 0; |
| 4960 | } |
| 4961 | |
| 4962 | static void qeth_core_complete(struct ccwgroup_device *gdev) |
| 4963 | { |
| 4964 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| 4965 | if (card->discipline.ccwgdriver && |
| 4966 | card->discipline.ccwgdriver->complete) |
| 4967 | card->discipline.ccwgdriver->complete(gdev); |
| 4968 | } |
| 4969 | |
| 4970 | static int qeth_core_freeze(struct ccwgroup_device *gdev) |
| 4971 | { |
| 4972 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| 4973 | if (card->discipline.ccwgdriver && |
| 4974 | card->discipline.ccwgdriver->freeze) |
| 4975 | return card->discipline.ccwgdriver->freeze(gdev); |
| 4976 | return 0; |
| 4977 | } |
| 4978 | |
| 4979 | static int qeth_core_thaw(struct ccwgroup_device *gdev) |
| 4980 | { |
| 4981 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| 4982 | if (card->discipline.ccwgdriver && |
| 4983 | card->discipline.ccwgdriver->thaw) |
| 4984 | return card->discipline.ccwgdriver->thaw(gdev); |
| 4985 | return 0; |
| 4986 | } |
| 4987 | |
| 4988 | static int qeth_core_restore(struct ccwgroup_device *gdev) |
| 4989 | { |
| 4990 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| 4991 | if (card->discipline.ccwgdriver && |
| 4992 | card->discipline.ccwgdriver->restore) |
| 4993 | return card->discipline.ccwgdriver->restore(gdev); |
| 4994 | return 0; |
| 4995 | } |
| 4996 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4997 | static struct ccwgroup_driver qeth_core_ccwgroup_driver = { |
Sebastian Ott | 3c190c5 | 2011-03-23 10:16:04 +0100 | [diff] [blame] | 4998 | .driver = { |
| 4999 | .owner = THIS_MODULE, |
| 5000 | .name = "qeth", |
| 5001 | }, |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 5002 | .driver_id = 0xD8C5E3C8, |
| 5003 | .probe = qeth_core_probe_device, |
| 5004 | .remove = qeth_core_remove_device, |
| 5005 | .set_online = qeth_core_set_online, |
| 5006 | .set_offline = qeth_core_set_offline, |
| 5007 | .shutdown = qeth_core_shutdown, |
Frank Blaschka | bbcfcdc | 2009-06-16 10:30:31 +0200 | [diff] [blame] | 5008 | .prepare = qeth_core_prepare, |
| 5009 | .complete = qeth_core_complete, |
| 5010 | .freeze = qeth_core_freeze, |
| 5011 | .thaw = qeth_core_thaw, |
| 5012 | .restore = qeth_core_restore, |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 5013 | }; |
| 5014 | |
| 5015 | static ssize_t |
| 5016 | qeth_core_driver_group_store(struct device_driver *ddrv, const char *buf, |
| 5017 | size_t count) |
| 5018 | { |
| 5019 | int err; |
| 5020 | err = qeth_core_driver_group(buf, qeth_core_root_dev, |
| 5021 | qeth_core_ccwgroup_driver.driver_id); |
| 5022 | if (err) |
| 5023 | return err; |
| 5024 | else |
| 5025 | return count; |
| 5026 | } |
| 5027 | |
| 5028 | static DRIVER_ATTR(group, 0200, NULL, qeth_core_driver_group_store); |
| 5029 | |
| 5030 | static struct { |
| 5031 | const char str[ETH_GSTRING_LEN]; |
| 5032 | } qeth_ethtool_stats_keys[] = { |
| 5033 | /* 0 */{"rx skbs"}, |
| 5034 | {"rx buffers"}, |
| 5035 | {"tx skbs"}, |
| 5036 | {"tx buffers"}, |
| 5037 | {"tx skbs no packing"}, |
| 5038 | {"tx buffers no packing"}, |
| 5039 | {"tx skbs packing"}, |
| 5040 | {"tx buffers packing"}, |
| 5041 | {"tx sg skbs"}, |
| 5042 | {"tx sg frags"}, |
| 5043 | /* 10 */{"rx sg skbs"}, |
| 5044 | {"rx sg frags"}, |
| 5045 | {"rx sg page allocs"}, |
| 5046 | {"tx large kbytes"}, |
| 5047 | {"tx large count"}, |
| 5048 | {"tx pk state ch n->p"}, |
| 5049 | {"tx pk state ch p->n"}, |
| 5050 | {"tx pk watermark low"}, |
| 5051 | {"tx pk watermark high"}, |
| 5052 | {"queue 0 buffer usage"}, |
| 5053 | /* 20 */{"queue 1 buffer usage"}, |
| 5054 | {"queue 2 buffer usage"}, |
| 5055 | {"queue 3 buffer usage"}, |
Frank Blaschka | a1c3ed4 | 2010-09-07 21:14:42 +0000 | [diff] [blame] | 5056 | {"rx poll time"}, |
| 5057 | {"rx poll count"}, |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 5058 | {"rx do_QDIO time"}, |
| 5059 | {"rx do_QDIO count"}, |
| 5060 | {"tx handler time"}, |
| 5061 | {"tx handler count"}, |
| 5062 | {"tx time"}, |
| 5063 | /* 30 */{"tx count"}, |
| 5064 | {"tx do_QDIO time"}, |
| 5065 | {"tx do_QDIO count"}, |
Frank Blaschka | f61a0d0 | 2009-03-24 20:57:15 +0000 | [diff] [blame] | 5066 | {"tx csum"}, |
Frank Blaschka | c3b4a74 | 2009-11-12 00:11:44 +0000 | [diff] [blame] | 5067 | {"tx lin"}, |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 5068 | {"cq handler count"}, |
| 5069 | {"cq handler time"} |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 5070 | }; |
| 5071 | |
Ben Hutchings | df8b4ec | 2009-10-01 11:24:32 +0000 | [diff] [blame] | 5072 | int qeth_core_get_sset_count(struct net_device *dev, int stringset) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 5073 | { |
Ben Hutchings | df8b4ec | 2009-10-01 11:24:32 +0000 | [diff] [blame] | 5074 | switch (stringset) { |
| 5075 | case ETH_SS_STATS: |
| 5076 | return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN); |
| 5077 | default: |
| 5078 | return -EINVAL; |
| 5079 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 5080 | } |
Ben Hutchings | df8b4ec | 2009-10-01 11:24:32 +0000 | [diff] [blame] | 5081 | EXPORT_SYMBOL_GPL(qeth_core_get_sset_count); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 5082 | |
| 5083 | void qeth_core_get_ethtool_stats(struct net_device *dev, |
| 5084 | struct ethtool_stats *stats, u64 *data) |
| 5085 | { |
Heiko Carstens | 509e256 | 2008-07-26 02:24:10 -0700 | [diff] [blame] | 5086 | struct qeth_card *card = dev->ml_priv; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 5087 | data[0] = card->stats.rx_packets - |
| 5088 | card->perf_stats.initial_rx_packets; |
| 5089 | data[1] = card->perf_stats.bufs_rec; |
| 5090 | data[2] = card->stats.tx_packets - |
| 5091 | card->perf_stats.initial_tx_packets; |
| 5092 | data[3] = card->perf_stats.bufs_sent; |
| 5093 | data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets |
| 5094 | - card->perf_stats.skbs_sent_pack; |
| 5095 | data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack; |
| 5096 | data[6] = card->perf_stats.skbs_sent_pack; |
| 5097 | data[7] = card->perf_stats.bufs_sent_pack; |
| 5098 | data[8] = card->perf_stats.sg_skbs_sent; |
| 5099 | data[9] = card->perf_stats.sg_frags_sent; |
| 5100 | data[10] = card->perf_stats.sg_skbs_rx; |
| 5101 | data[11] = card->perf_stats.sg_frags_rx; |
| 5102 | data[12] = card->perf_stats.sg_alloc_page_rx; |
| 5103 | data[13] = (card->perf_stats.large_send_bytes >> 10); |
| 5104 | data[14] = card->perf_stats.large_send_cnt; |
| 5105 | data[15] = card->perf_stats.sc_dp_p; |
| 5106 | data[16] = card->perf_stats.sc_p_dp; |
| 5107 | data[17] = QETH_LOW_WATERMARK_PACK; |
| 5108 | data[18] = QETH_HIGH_WATERMARK_PACK; |
| 5109 | data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers); |
| 5110 | data[20] = (card->qdio.no_out_queues > 1) ? |
| 5111 | atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0; |
| 5112 | data[21] = (card->qdio.no_out_queues > 2) ? |
| 5113 | atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0; |
| 5114 | data[22] = (card->qdio.no_out_queues > 3) ? |
| 5115 | atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0; |
| 5116 | data[23] = card->perf_stats.inbound_time; |
| 5117 | data[24] = card->perf_stats.inbound_cnt; |
| 5118 | data[25] = card->perf_stats.inbound_do_qdio_time; |
| 5119 | data[26] = card->perf_stats.inbound_do_qdio_cnt; |
| 5120 | data[27] = card->perf_stats.outbound_handler_time; |
| 5121 | data[28] = card->perf_stats.outbound_handler_cnt; |
| 5122 | data[29] = card->perf_stats.outbound_time; |
| 5123 | data[30] = card->perf_stats.outbound_cnt; |
| 5124 | data[31] = card->perf_stats.outbound_do_qdio_time; |
| 5125 | data[32] = card->perf_stats.outbound_do_qdio_cnt; |
Frank Blaschka | f61a0d0 | 2009-03-24 20:57:15 +0000 | [diff] [blame] | 5126 | data[33] = card->perf_stats.tx_csum; |
Frank Blaschka | c3b4a74 | 2009-11-12 00:11:44 +0000 | [diff] [blame] | 5127 | data[34] = card->perf_stats.tx_lin; |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 5128 | data[35] = card->perf_stats.cq_cnt; |
| 5129 | data[36] = card->perf_stats.cq_time; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 5130 | } |
| 5131 | EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats); |
| 5132 | |
| 5133 | void qeth_core_get_strings(struct net_device *dev, u32 stringset, u8 *data) |
| 5134 | { |
| 5135 | switch (stringset) { |
| 5136 | case ETH_SS_STATS: |
| 5137 | memcpy(data, &qeth_ethtool_stats_keys, |
| 5138 | sizeof(qeth_ethtool_stats_keys)); |
| 5139 | break; |
| 5140 | default: |
| 5141 | WARN_ON(1); |
| 5142 | break; |
| 5143 | } |
| 5144 | } |
| 5145 | EXPORT_SYMBOL_GPL(qeth_core_get_strings); |
| 5146 | |
| 5147 | void qeth_core_get_drvinfo(struct net_device *dev, |
| 5148 | struct ethtool_drvinfo *info) |
| 5149 | { |
Heiko Carstens | 509e256 | 2008-07-26 02:24:10 -0700 | [diff] [blame] | 5150 | struct qeth_card *card = dev->ml_priv; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 5151 | if (card->options.layer2) |
| 5152 | strcpy(info->driver, "qeth_l2"); |
| 5153 | else |
| 5154 | strcpy(info->driver, "qeth_l3"); |
| 5155 | |
| 5156 | strcpy(info->version, "1.0"); |
| 5157 | strcpy(info->fw_version, card->info.mcl_level); |
| 5158 | sprintf(info->bus_info, "%s/%s/%s", |
| 5159 | CARD_RDEV_ID(card), |
| 5160 | CARD_WDEV_ID(card), |
| 5161 | CARD_DDEV_ID(card)); |
| 5162 | } |
| 5163 | EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo); |
| 5164 | |
Frank Blaschka | 3f9975a | 2008-04-24 10:15:23 +0200 | [diff] [blame] | 5165 | int qeth_core_ethtool_get_settings(struct net_device *netdev, |
| 5166 | struct ethtool_cmd *ecmd) |
| 5167 | { |
Heiko Carstens | 509e256 | 2008-07-26 02:24:10 -0700 | [diff] [blame] | 5168 | struct qeth_card *card = netdev->ml_priv; |
Frank Blaschka | 3f9975a | 2008-04-24 10:15:23 +0200 | [diff] [blame] | 5169 | enum qeth_link_types link_type; |
| 5170 | |
| 5171 | if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan)) |
| 5172 | link_type = QETH_LINK_TYPE_10GBIT_ETH; |
| 5173 | else |
| 5174 | link_type = card->info.link_type; |
| 5175 | |
| 5176 | ecmd->transceiver = XCVR_INTERNAL; |
| 5177 | ecmd->supported = SUPPORTED_Autoneg; |
| 5178 | ecmd->advertising = ADVERTISED_Autoneg; |
| 5179 | ecmd->duplex = DUPLEX_FULL; |
| 5180 | ecmd->autoneg = AUTONEG_ENABLE; |
| 5181 | |
| 5182 | switch (link_type) { |
| 5183 | case QETH_LINK_TYPE_FAST_ETH: |
| 5184 | case QETH_LINK_TYPE_LANE_ETH100: |
| 5185 | ecmd->supported |= SUPPORTED_10baseT_Half | |
| 5186 | SUPPORTED_10baseT_Full | |
| 5187 | SUPPORTED_100baseT_Half | |
| 5188 | SUPPORTED_100baseT_Full | |
| 5189 | SUPPORTED_TP; |
| 5190 | ecmd->advertising |= ADVERTISED_10baseT_Half | |
| 5191 | ADVERTISED_10baseT_Full | |
| 5192 | ADVERTISED_100baseT_Half | |
| 5193 | ADVERTISED_100baseT_Full | |
| 5194 | ADVERTISED_TP; |
| 5195 | ecmd->speed = SPEED_100; |
| 5196 | ecmd->port = PORT_TP; |
| 5197 | break; |
| 5198 | |
| 5199 | case QETH_LINK_TYPE_GBIT_ETH: |
| 5200 | case QETH_LINK_TYPE_LANE_ETH1000: |
| 5201 | ecmd->supported |= SUPPORTED_10baseT_Half | |
| 5202 | SUPPORTED_10baseT_Full | |
| 5203 | SUPPORTED_100baseT_Half | |
| 5204 | SUPPORTED_100baseT_Full | |
| 5205 | SUPPORTED_1000baseT_Half | |
| 5206 | SUPPORTED_1000baseT_Full | |
| 5207 | SUPPORTED_FIBRE; |
| 5208 | ecmd->advertising |= ADVERTISED_10baseT_Half | |
| 5209 | ADVERTISED_10baseT_Full | |
| 5210 | ADVERTISED_100baseT_Half | |
| 5211 | ADVERTISED_100baseT_Full | |
| 5212 | ADVERTISED_1000baseT_Half | |
| 5213 | ADVERTISED_1000baseT_Full | |
| 5214 | ADVERTISED_FIBRE; |
| 5215 | ecmd->speed = SPEED_1000; |
| 5216 | ecmd->port = PORT_FIBRE; |
| 5217 | break; |
| 5218 | |
| 5219 | case QETH_LINK_TYPE_10GBIT_ETH: |
| 5220 | ecmd->supported |= SUPPORTED_10baseT_Half | |
| 5221 | SUPPORTED_10baseT_Full | |
| 5222 | SUPPORTED_100baseT_Half | |
| 5223 | SUPPORTED_100baseT_Full | |
| 5224 | SUPPORTED_1000baseT_Half | |
| 5225 | SUPPORTED_1000baseT_Full | |
| 5226 | SUPPORTED_10000baseT_Full | |
| 5227 | SUPPORTED_FIBRE; |
| 5228 | ecmd->advertising |= ADVERTISED_10baseT_Half | |
| 5229 | ADVERTISED_10baseT_Full | |
| 5230 | ADVERTISED_100baseT_Half | |
| 5231 | ADVERTISED_100baseT_Full | |
| 5232 | ADVERTISED_1000baseT_Half | |
| 5233 | ADVERTISED_1000baseT_Full | |
| 5234 | ADVERTISED_10000baseT_Full | |
| 5235 | ADVERTISED_FIBRE; |
| 5236 | ecmd->speed = SPEED_10000; |
| 5237 | ecmd->port = PORT_FIBRE; |
| 5238 | break; |
| 5239 | |
| 5240 | default: |
| 5241 | ecmd->supported |= SUPPORTED_10baseT_Half | |
| 5242 | SUPPORTED_10baseT_Full | |
| 5243 | SUPPORTED_TP; |
| 5244 | ecmd->advertising |= ADVERTISED_10baseT_Half | |
| 5245 | ADVERTISED_10baseT_Full | |
| 5246 | ADVERTISED_TP; |
| 5247 | ecmd->speed = SPEED_10; |
| 5248 | ecmd->port = PORT_TP; |
| 5249 | } |
| 5250 | |
| 5251 | return 0; |
| 5252 | } |
| 5253 | EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_settings); |
| 5254 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 5255 | static int __init qeth_core_init(void) |
| 5256 | { |
| 5257 | int rc; |
| 5258 | |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 5259 | pr_info("loading core functions\n"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 5260 | INIT_LIST_HEAD(&qeth_core_card_list.list); |
| 5261 | rwlock_init(&qeth_core_card_list.rwlock); |
| 5262 | |
| 5263 | rc = qeth_register_dbf_views(); |
| 5264 | if (rc) |
| 5265 | goto out_err; |
| 5266 | rc = ccw_driver_register(&qeth_ccw_driver); |
| 5267 | if (rc) |
| 5268 | goto ccw_err; |
| 5269 | rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver); |
| 5270 | if (rc) |
| 5271 | goto ccwgroup_err; |
| 5272 | rc = driver_create_file(&qeth_core_ccwgroup_driver.driver, |
| 5273 | &driver_attr_group); |
| 5274 | if (rc) |
| 5275 | goto driver_err; |
Mark McLoughlin | 035da16 | 2008-12-15 12:58:29 +0000 | [diff] [blame] | 5276 | qeth_core_root_dev = root_device_register("qeth"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 5277 | rc = IS_ERR(qeth_core_root_dev) ? PTR_ERR(qeth_core_root_dev) : 0; |
| 5278 | if (rc) |
| 5279 | goto register_err; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 5280 | |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 5281 | qeth_core_header_cache = kmem_cache_create("qeth_hdr", |
| 5282 | sizeof(struct qeth_hdr) + ETH_HLEN, 64, 0, NULL); |
| 5283 | if (!qeth_core_header_cache) { |
| 5284 | rc = -ENOMEM; |
| 5285 | goto slab_err; |
| 5286 | } |
| 5287 | |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 5288 | qeth_qdio_outbuf_cache = kmem_cache_create("qeth_buf", |
| 5289 | sizeof(struct qeth_qdio_out_buffer), 0, 0, NULL); |
| 5290 | if (!qeth_qdio_outbuf_cache) { |
| 5291 | rc = -ENOMEM; |
| 5292 | goto cqslab_err; |
| 5293 | } |
| 5294 | |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 5295 | return 0; |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 5296 | cqslab_err: |
| 5297 | kmem_cache_destroy(qeth_core_header_cache); |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 5298 | slab_err: |
Mark McLoughlin | 035da16 | 2008-12-15 12:58:29 +0000 | [diff] [blame] | 5299 | root_device_unregister(qeth_core_root_dev); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 5300 | register_err: |
| 5301 | driver_remove_file(&qeth_core_ccwgroup_driver.driver, |
| 5302 | &driver_attr_group); |
| 5303 | driver_err: |
| 5304 | ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver); |
| 5305 | ccwgroup_err: |
| 5306 | ccw_driver_unregister(&qeth_ccw_driver); |
| 5307 | ccw_err: |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 5308 | QETH_DBF_MESSAGE(2, "Initialization failed with code %d\n", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 5309 | qeth_unregister_dbf_views(); |
| 5310 | out_err: |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 5311 | pr_err("Initializing the qeth device driver failed\n"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 5312 | return rc; |
| 5313 | } |
| 5314 | |
| 5315 | static void __exit qeth_core_exit(void) |
| 5316 | { |
Mark McLoughlin | 035da16 | 2008-12-15 12:58:29 +0000 | [diff] [blame] | 5317 | root_device_unregister(qeth_core_root_dev); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 5318 | driver_remove_file(&qeth_core_ccwgroup_driver.driver, |
| 5319 | &driver_attr_group); |
| 5320 | ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver); |
| 5321 | ccw_driver_unregister(&qeth_ccw_driver); |
Einar Lueck | 0da9581 | 2011-08-08 01:33:58 +0000 | [diff] [blame^] | 5322 | kmem_cache_destroy(qeth_qdio_outbuf_cache); |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 5323 | kmem_cache_destroy(qeth_core_header_cache); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 5324 | qeth_unregister_dbf_views(); |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 5325 | pr_info("core functions removed\n"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 5326 | } |
| 5327 | |
| 5328 | module_init(qeth_core_init); |
| 5329 | module_exit(qeth_core_exit); |
| 5330 | MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); |
| 5331 | MODULE_DESCRIPTION("qeth core functions"); |
| 5332 | MODULE_LICENSE("GPL"); |