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 | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 27 | |
| 28 | #include "qeth_core.h" |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 29 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 30 | struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = { |
| 31 | /* define dbf - Name, Pages, Areas, Maxlen, Level, View, Handle */ |
| 32 | /* N P A M L V H */ |
| 33 | [QETH_DBF_SETUP] = {"qeth_setup", |
| 34 | 8, 1, 8, 5, &debug_hex_ascii_view, NULL}, |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 35 | [QETH_DBF_MSG] = {"qeth_msg", |
| 36 | 8, 1, 128, 3, &debug_sprintf_view, NULL}, |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 37 | [QETH_DBF_CTRL] = {"qeth_control", |
| 38 | 8, 1, QETH_DBF_CTRL_LEN, 5, &debug_hex_ascii_view, NULL}, |
| 39 | }; |
| 40 | EXPORT_SYMBOL_GPL(qeth_dbf); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 41 | |
| 42 | struct qeth_card_list_struct qeth_core_card_list; |
| 43 | EXPORT_SYMBOL_GPL(qeth_core_card_list); |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 44 | struct kmem_cache *qeth_core_header_cache; |
| 45 | EXPORT_SYMBOL_GPL(qeth_core_header_cache); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 46 | |
| 47 | static struct device *qeth_core_root_dev; |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 48 | static unsigned int known_devices[][6] = QETH_MODELLIST_ARRAY; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 49 | static struct lock_class_key qdio_out_skb_queue_key; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 50 | |
| 51 | static void qeth_send_control_data_cb(struct qeth_channel *, |
| 52 | struct qeth_cmd_buffer *); |
| 53 | static int qeth_issue_next_read(struct qeth_card *); |
| 54 | static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *); |
| 55 | static void qeth_setup_ccw(struct qeth_channel *, unsigned char *, __u32); |
| 56 | static void qeth_free_buffer_pool(struct qeth_card *); |
| 57 | static int qeth_qdio_establish(struct qeth_card *); |
| 58 | |
| 59 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 60 | static inline const char *qeth_get_cardname(struct qeth_card *card) |
| 61 | { |
| 62 | if (card->info.guestlan) { |
| 63 | switch (card->info.type) { |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 64 | case QETH_CARD_TYPE_OSD: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 65 | return " Guest LAN QDIO"; |
| 66 | case QETH_CARD_TYPE_IQD: |
| 67 | return " Guest LAN Hiper"; |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 68 | case QETH_CARD_TYPE_OSM: |
| 69 | return " Guest LAN QDIO - OSM"; |
| 70 | case QETH_CARD_TYPE_OSX: |
| 71 | return " Guest LAN QDIO - OSX"; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 72 | default: |
| 73 | return " unknown"; |
| 74 | } |
| 75 | } else { |
| 76 | switch (card->info.type) { |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 77 | case QETH_CARD_TYPE_OSD: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 78 | return " OSD Express"; |
| 79 | case QETH_CARD_TYPE_IQD: |
| 80 | return " HiperSockets"; |
| 81 | case QETH_CARD_TYPE_OSN: |
| 82 | return " OSN QDIO"; |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 83 | case QETH_CARD_TYPE_OSM: |
| 84 | return " OSM QDIO"; |
| 85 | case QETH_CARD_TYPE_OSX: |
| 86 | return " OSX QDIO"; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 87 | default: |
| 88 | return " unknown"; |
| 89 | } |
| 90 | } |
| 91 | return " n/a"; |
| 92 | } |
| 93 | |
| 94 | /* max length to be returned: 14 */ |
| 95 | const char *qeth_get_cardname_short(struct qeth_card *card) |
| 96 | { |
| 97 | if (card->info.guestlan) { |
| 98 | switch (card->info.type) { |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 99 | case QETH_CARD_TYPE_OSD: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 100 | return "GuestLAN QDIO"; |
| 101 | case QETH_CARD_TYPE_IQD: |
| 102 | return "GuestLAN Hiper"; |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 103 | case QETH_CARD_TYPE_OSM: |
| 104 | return "GuestLAN OSM"; |
| 105 | case QETH_CARD_TYPE_OSX: |
| 106 | return "GuestLAN OSX"; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 107 | default: |
| 108 | return "unknown"; |
| 109 | } |
| 110 | } else { |
| 111 | switch (card->info.type) { |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 112 | case QETH_CARD_TYPE_OSD: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 113 | switch (card->info.link_type) { |
| 114 | case QETH_LINK_TYPE_FAST_ETH: |
| 115 | return "OSD_100"; |
| 116 | case QETH_LINK_TYPE_HSTR: |
| 117 | return "HSTR"; |
| 118 | case QETH_LINK_TYPE_GBIT_ETH: |
| 119 | return "OSD_1000"; |
| 120 | case QETH_LINK_TYPE_10GBIT_ETH: |
| 121 | return "OSD_10GIG"; |
| 122 | case QETH_LINK_TYPE_LANE_ETH100: |
| 123 | return "OSD_FE_LANE"; |
| 124 | case QETH_LINK_TYPE_LANE_TR: |
| 125 | return "OSD_TR_LANE"; |
| 126 | case QETH_LINK_TYPE_LANE_ETH1000: |
| 127 | return "OSD_GbE_LANE"; |
| 128 | case QETH_LINK_TYPE_LANE: |
| 129 | return "OSD_ATM_LANE"; |
| 130 | default: |
| 131 | return "OSD_Express"; |
| 132 | } |
| 133 | case QETH_CARD_TYPE_IQD: |
| 134 | return "HiperSockets"; |
| 135 | case QETH_CARD_TYPE_OSN: |
| 136 | return "OSN"; |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 137 | case QETH_CARD_TYPE_OSM: |
| 138 | return "OSM_1000"; |
| 139 | case QETH_CARD_TYPE_OSX: |
| 140 | return "OSX_10GIG"; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 141 | default: |
| 142 | return "unknown"; |
| 143 | } |
| 144 | } |
| 145 | return "n/a"; |
| 146 | } |
| 147 | |
| 148 | void qeth_set_allowed_threads(struct qeth_card *card, unsigned long threads, |
| 149 | int clear_start_mask) |
| 150 | { |
| 151 | unsigned long flags; |
| 152 | |
| 153 | spin_lock_irqsave(&card->thread_mask_lock, flags); |
| 154 | card->thread_allowed_mask = threads; |
| 155 | if (clear_start_mask) |
| 156 | card->thread_start_mask &= threads; |
| 157 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| 158 | wake_up(&card->wait_q); |
| 159 | } |
| 160 | EXPORT_SYMBOL_GPL(qeth_set_allowed_threads); |
| 161 | |
| 162 | int qeth_threads_running(struct qeth_card *card, unsigned long threads) |
| 163 | { |
| 164 | unsigned long flags; |
| 165 | int rc = 0; |
| 166 | |
| 167 | spin_lock_irqsave(&card->thread_mask_lock, flags); |
| 168 | rc = (card->thread_running_mask & threads); |
| 169 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| 170 | return rc; |
| 171 | } |
| 172 | EXPORT_SYMBOL_GPL(qeth_threads_running); |
| 173 | |
| 174 | int qeth_wait_for_threads(struct qeth_card *card, unsigned long threads) |
| 175 | { |
| 176 | return wait_event_interruptible(card->wait_q, |
| 177 | qeth_threads_running(card, threads) == 0); |
| 178 | } |
| 179 | EXPORT_SYMBOL_GPL(qeth_wait_for_threads); |
| 180 | |
| 181 | void qeth_clear_working_pool_list(struct qeth_card *card) |
| 182 | { |
| 183 | struct qeth_buffer_pool_entry *pool_entry, *tmp; |
| 184 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 185 | QETH_CARD_TEXT(card, 5, "clwrklst"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 186 | list_for_each_entry_safe(pool_entry, tmp, |
| 187 | &card->qdio.in_buf_pool.entry_list, list){ |
| 188 | list_del(&pool_entry->list); |
| 189 | } |
| 190 | } |
| 191 | EXPORT_SYMBOL_GPL(qeth_clear_working_pool_list); |
| 192 | |
| 193 | static int qeth_alloc_buffer_pool(struct qeth_card *card) |
| 194 | { |
| 195 | struct qeth_buffer_pool_entry *pool_entry; |
| 196 | void *ptr; |
| 197 | int i, j; |
| 198 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 199 | QETH_CARD_TEXT(card, 5, "alocpool"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 200 | for (i = 0; i < card->qdio.init_pool.buf_count; ++i) { |
| 201 | pool_entry = kmalloc(sizeof(*pool_entry), GFP_KERNEL); |
| 202 | if (!pool_entry) { |
| 203 | qeth_free_buffer_pool(card); |
| 204 | return -ENOMEM; |
| 205 | } |
| 206 | for (j = 0; j < QETH_MAX_BUFFER_ELEMENTS(card); ++j) { |
Ursula Braun | 508b3c4 | 2008-04-01 10:26:54 +0200 | [diff] [blame] | 207 | ptr = (void *) __get_free_page(GFP_KERNEL); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 208 | if (!ptr) { |
| 209 | while (j > 0) |
| 210 | free_page((unsigned long) |
| 211 | pool_entry->elements[--j]); |
| 212 | kfree(pool_entry); |
| 213 | qeth_free_buffer_pool(card); |
| 214 | return -ENOMEM; |
| 215 | } |
| 216 | pool_entry->elements[j] = ptr; |
| 217 | } |
| 218 | list_add(&pool_entry->init_list, |
| 219 | &card->qdio.init_pool.entry_list); |
| 220 | } |
| 221 | return 0; |
| 222 | } |
| 223 | |
| 224 | int qeth_realloc_buffer_pool(struct qeth_card *card, int bufcnt) |
| 225 | { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 226 | QETH_CARD_TEXT(card, 2, "realcbp"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 227 | |
| 228 | if ((card->state != CARD_STATE_DOWN) && |
| 229 | (card->state != CARD_STATE_RECOVER)) |
| 230 | return -EPERM; |
| 231 | |
| 232 | /* TODO: steel/add buffers from/to a running card's buffer pool (?) */ |
| 233 | qeth_clear_working_pool_list(card); |
| 234 | qeth_free_buffer_pool(card); |
| 235 | card->qdio.in_buf_pool.buf_count = bufcnt; |
| 236 | card->qdio.init_pool.buf_count = bufcnt; |
| 237 | return qeth_alloc_buffer_pool(card); |
| 238 | } |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 239 | EXPORT_SYMBOL_GPL(qeth_realloc_buffer_pool); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 240 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 241 | static int qeth_issue_next_read(struct qeth_card *card) |
| 242 | { |
| 243 | int rc; |
| 244 | struct qeth_cmd_buffer *iob; |
| 245 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 246 | QETH_CARD_TEXT(card, 5, "issnxrd"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 247 | if (card->read.state != CH_STATE_UP) |
| 248 | return -EIO; |
| 249 | iob = qeth_get_buffer(&card->read); |
| 250 | if (!iob) { |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 251 | dev_warn(&card->gdev->dev, "The qeth device driver " |
| 252 | "failed to recover an error on the device\n"); |
| 253 | QETH_DBF_MESSAGE(2, "%s issue_next_read failed: no iob " |
| 254 | "available\n", dev_name(&card->gdev->dev)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 255 | return -ENOMEM; |
| 256 | } |
| 257 | qeth_setup_ccw(&card->read, iob->data, QETH_BUFSIZE); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 258 | QETH_CARD_TEXT(card, 6, "noirqpnd"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 259 | rc = ccw_device_start(card->read.ccwdev, &card->read.ccw, |
| 260 | (addr_t) iob, 0, 0); |
| 261 | if (rc) { |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 262 | QETH_DBF_MESSAGE(2, "%s error in starting next read ccw! " |
| 263 | "rc=%i\n", dev_name(&card->gdev->dev), rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 264 | atomic_set(&card->read.irq_pending, 0); |
Ursula Braun | 908abbb | 2010-07-22 23:15:06 +0000 | [diff] [blame] | 265 | card->read_or_write_problem = 1; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 266 | qeth_schedule_recovery(card); |
| 267 | wake_up(&card->wait_q); |
| 268 | } |
| 269 | return rc; |
| 270 | } |
| 271 | |
| 272 | static struct qeth_reply *qeth_alloc_reply(struct qeth_card *card) |
| 273 | { |
| 274 | struct qeth_reply *reply; |
| 275 | |
| 276 | reply = kzalloc(sizeof(struct qeth_reply), GFP_ATOMIC); |
| 277 | if (reply) { |
| 278 | atomic_set(&reply->refcnt, 1); |
| 279 | atomic_set(&reply->received, 0); |
| 280 | reply->card = card; |
| 281 | }; |
| 282 | return reply; |
| 283 | } |
| 284 | |
| 285 | static void qeth_get_reply(struct qeth_reply *reply) |
| 286 | { |
| 287 | WARN_ON(atomic_read(&reply->refcnt) <= 0); |
| 288 | atomic_inc(&reply->refcnt); |
| 289 | } |
| 290 | |
| 291 | static void qeth_put_reply(struct qeth_reply *reply) |
| 292 | { |
| 293 | WARN_ON(atomic_read(&reply->refcnt) <= 0); |
| 294 | if (atomic_dec_and_test(&reply->refcnt)) |
| 295 | kfree(reply); |
| 296 | } |
| 297 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 298 | 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] | 299 | struct qeth_card *card) |
| 300 | { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 301 | char *ipa_name; |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 302 | int com = cmd->hdr.command; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 303 | ipa_name = qeth_get_ipa_cmd_name(com); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 304 | if (rc) |
| 305 | QETH_DBF_MESSAGE(2, "IPA: %s(x%X) for %s returned x%X \"%s\"\n", |
| 306 | ipa_name, com, QETH_CARD_IFNAME(card), |
| 307 | rc, qeth_get_ipa_msg(rc)); |
| 308 | else |
| 309 | QETH_DBF_MESSAGE(5, "IPA: %s(x%X) for %s succeeded\n", |
| 310 | ipa_name, com, QETH_CARD_IFNAME(card)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 311 | } |
| 312 | |
| 313 | static struct qeth_ipa_cmd *qeth_check_ipa_data(struct qeth_card *card, |
| 314 | struct qeth_cmd_buffer *iob) |
| 315 | { |
| 316 | struct qeth_ipa_cmd *cmd = NULL; |
| 317 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 318 | QETH_CARD_TEXT(card, 5, "chkipad"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 319 | if (IS_IPA(iob->data)) { |
| 320 | cmd = (struct qeth_ipa_cmd *) PDU_ENCAPSULATION(iob->data); |
| 321 | if (IS_IPA_REPLY(cmd)) { |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 322 | if (cmd->hdr.command != IPA_CMD_SETCCID && |
| 323 | cmd->hdr.command != IPA_CMD_DELCCID && |
| 324 | cmd->hdr.command != IPA_CMD_MODCCID && |
| 325 | cmd->hdr.command != IPA_CMD_SET_DIAG_ASS) |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 326 | qeth_issue_ipa_msg(cmd, |
| 327 | cmd->hdr.return_code, card); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 328 | return cmd; |
| 329 | } else { |
| 330 | switch (cmd->hdr.command) { |
| 331 | case IPA_CMD_STOPLAN: |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 332 | dev_warn(&card->gdev->dev, |
| 333 | "The link for interface %s on CHPID" |
| 334 | " 0x%X failed\n", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 335 | QETH_CARD_IFNAME(card), |
| 336 | card->info.chpid); |
| 337 | card->lan_online = 0; |
| 338 | if (card->dev && netif_carrier_ok(card->dev)) |
| 339 | netif_carrier_off(card->dev); |
| 340 | return NULL; |
| 341 | case IPA_CMD_STARTLAN: |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 342 | dev_info(&card->gdev->dev, |
| 343 | "The link for %s on CHPID 0x%X has" |
| 344 | " been restored\n", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 345 | QETH_CARD_IFNAME(card), |
| 346 | card->info.chpid); |
| 347 | netif_carrier_on(card->dev); |
Ursula Braun | 922dc06 | 2008-04-01 10:26:55 +0200 | [diff] [blame] | 348 | card->lan_online = 1; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 349 | qeth_schedule_recovery(card); |
| 350 | return NULL; |
| 351 | case IPA_CMD_MODCCID: |
| 352 | return cmd; |
| 353 | case IPA_CMD_REGISTER_LOCAL_ADDR: |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 354 | QETH_CARD_TEXT(card, 3, "irla"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 355 | break; |
| 356 | case IPA_CMD_UNREGISTER_LOCAL_ADDR: |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 357 | QETH_CARD_TEXT(card, 3, "urla"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 358 | break; |
| 359 | default: |
Frank Blaschka | c4cef07 | 2008-07-14 09:59:31 +0200 | [diff] [blame] | 360 | QETH_DBF_MESSAGE(2, "Received data is IPA " |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 361 | "but not a reply!\n"); |
| 362 | break; |
| 363 | } |
| 364 | } |
| 365 | } |
| 366 | return cmd; |
| 367 | } |
| 368 | |
| 369 | void qeth_clear_ipacmd_list(struct qeth_card *card) |
| 370 | { |
| 371 | struct qeth_reply *reply, *r; |
| 372 | unsigned long flags; |
| 373 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 374 | QETH_CARD_TEXT(card, 4, "clipalst"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 375 | |
| 376 | spin_lock_irqsave(&card->lock, flags); |
| 377 | list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) { |
| 378 | qeth_get_reply(reply); |
| 379 | reply->rc = -EIO; |
| 380 | atomic_inc(&reply->received); |
| 381 | list_del_init(&reply->list); |
| 382 | wake_up(&reply->wait_q); |
| 383 | qeth_put_reply(reply); |
| 384 | } |
| 385 | spin_unlock_irqrestore(&card->lock, flags); |
Ursula Braun | 908abbb | 2010-07-22 23:15:06 +0000 | [diff] [blame] | 386 | atomic_set(&card->write.irq_pending, 0); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 387 | } |
| 388 | EXPORT_SYMBOL_GPL(qeth_clear_ipacmd_list); |
| 389 | |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 390 | static int qeth_check_idx_response(struct qeth_card *card, |
| 391 | unsigned char *buffer) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 392 | { |
| 393 | if (!buffer) |
| 394 | return 0; |
| 395 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 396 | QETH_DBF_HEX(CTRL, 2, buffer, QETH_DBF_CTRL_LEN); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 397 | if ((buffer[2] & 0xc0) == 0xc0) { |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 398 | QETH_DBF_MESSAGE(2, "received an IDX TERMINATE " |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 399 | "with cause code 0x%02x%s\n", |
| 400 | buffer[4], |
| 401 | ((buffer[4] == 0x22) ? |
| 402 | " -- try another portname" : "")); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 403 | QETH_CARD_TEXT(card, 2, "ckidxres"); |
| 404 | QETH_CARD_TEXT(card, 2, " idxterm"); |
| 405 | QETH_CARD_TEXT_(card, 2, " rc%d", -EIO); |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 406 | if (buffer[4] == 0xf6) { |
| 407 | dev_err(&card->gdev->dev, |
| 408 | "The qeth device is not configured " |
| 409 | "for the OSI layer required by z/VM\n"); |
| 410 | return -EPERM; |
| 411 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 412 | return -EIO; |
| 413 | } |
| 414 | return 0; |
| 415 | } |
| 416 | |
| 417 | static void qeth_setup_ccw(struct qeth_channel *channel, unsigned char *iob, |
| 418 | __u32 len) |
| 419 | { |
| 420 | struct qeth_card *card; |
| 421 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 422 | card = CARD_FROM_CDEV(channel->ccwdev); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 423 | QETH_CARD_TEXT(card, 4, "setupccw"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 424 | if (channel == &card->read) |
| 425 | memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1)); |
| 426 | else |
| 427 | memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1)); |
| 428 | channel->ccw.count = len; |
| 429 | channel->ccw.cda = (__u32) __pa(iob); |
| 430 | } |
| 431 | |
| 432 | static struct qeth_cmd_buffer *__qeth_get_buffer(struct qeth_channel *channel) |
| 433 | { |
| 434 | __u8 index; |
| 435 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 436 | QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "getbuff"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 437 | index = channel->io_buf_no; |
| 438 | do { |
| 439 | if (channel->iob[index].state == BUF_STATE_FREE) { |
| 440 | channel->iob[index].state = BUF_STATE_LOCKED; |
| 441 | channel->io_buf_no = (channel->io_buf_no + 1) % |
| 442 | QETH_CMD_BUFFER_NO; |
| 443 | memset(channel->iob[index].data, 0, QETH_BUFSIZE); |
| 444 | return channel->iob + index; |
| 445 | } |
| 446 | index = (index + 1) % QETH_CMD_BUFFER_NO; |
| 447 | } while (index != channel->io_buf_no); |
| 448 | |
| 449 | return NULL; |
| 450 | } |
| 451 | |
| 452 | void qeth_release_buffer(struct qeth_channel *channel, |
| 453 | struct qeth_cmd_buffer *iob) |
| 454 | { |
| 455 | unsigned long flags; |
| 456 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 457 | QETH_CARD_TEXT(CARD_FROM_CDEV(channel->ccwdev), 6, "relbuff"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 458 | spin_lock_irqsave(&channel->iob_lock, flags); |
| 459 | memset(iob->data, 0, QETH_BUFSIZE); |
| 460 | iob->state = BUF_STATE_FREE; |
| 461 | iob->callback = qeth_send_control_data_cb; |
| 462 | iob->rc = 0; |
| 463 | spin_unlock_irqrestore(&channel->iob_lock, flags); |
| 464 | } |
| 465 | EXPORT_SYMBOL_GPL(qeth_release_buffer); |
| 466 | |
| 467 | static struct qeth_cmd_buffer *qeth_get_buffer(struct qeth_channel *channel) |
| 468 | { |
| 469 | struct qeth_cmd_buffer *buffer = NULL; |
| 470 | unsigned long flags; |
| 471 | |
| 472 | spin_lock_irqsave(&channel->iob_lock, flags); |
| 473 | buffer = __qeth_get_buffer(channel); |
| 474 | spin_unlock_irqrestore(&channel->iob_lock, flags); |
| 475 | return buffer; |
| 476 | } |
| 477 | |
| 478 | struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *channel) |
| 479 | { |
| 480 | struct qeth_cmd_buffer *buffer; |
| 481 | wait_event(channel->wait_q, |
| 482 | ((buffer = qeth_get_buffer(channel)) != NULL)); |
| 483 | return buffer; |
| 484 | } |
| 485 | EXPORT_SYMBOL_GPL(qeth_wait_for_buffer); |
| 486 | |
| 487 | void qeth_clear_cmd_buffers(struct qeth_channel *channel) |
| 488 | { |
| 489 | int cnt; |
| 490 | |
| 491 | for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) |
| 492 | qeth_release_buffer(channel, &channel->iob[cnt]); |
| 493 | channel->buf_no = 0; |
| 494 | channel->io_buf_no = 0; |
| 495 | } |
| 496 | EXPORT_SYMBOL_GPL(qeth_clear_cmd_buffers); |
| 497 | |
| 498 | static void qeth_send_control_data_cb(struct qeth_channel *channel, |
| 499 | struct qeth_cmd_buffer *iob) |
| 500 | { |
| 501 | struct qeth_card *card; |
| 502 | struct qeth_reply *reply, *r; |
| 503 | struct qeth_ipa_cmd *cmd; |
| 504 | unsigned long flags; |
| 505 | int keep_reply; |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 506 | int rc = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 507 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 508 | card = CARD_FROM_CDEV(channel->ccwdev); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 509 | QETH_CARD_TEXT(card, 4, "sndctlcb"); |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 510 | rc = qeth_check_idx_response(card, iob->data); |
| 511 | switch (rc) { |
| 512 | case 0: |
| 513 | break; |
| 514 | case -EIO: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 515 | qeth_clear_ipacmd_list(card); |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 516 | qeth_schedule_recovery(card); |
Ursula Braun | 01fc3e8 | 2010-06-21 22:57:12 +0000 | [diff] [blame] | 517 | /* fall through */ |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 518 | default: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 519 | goto out; |
| 520 | } |
| 521 | |
| 522 | cmd = qeth_check_ipa_data(card, iob); |
| 523 | if ((cmd == NULL) && (card->state != CARD_STATE_DOWN)) |
| 524 | goto out; |
| 525 | /*in case of OSN : check if cmd is set */ |
| 526 | if (card->info.type == QETH_CARD_TYPE_OSN && |
| 527 | cmd && |
| 528 | cmd->hdr.command != IPA_CMD_STARTLAN && |
| 529 | card->osn_info.assist_cb != NULL) { |
| 530 | card->osn_info.assist_cb(card->dev, cmd); |
| 531 | goto out; |
| 532 | } |
| 533 | |
| 534 | spin_lock_irqsave(&card->lock, flags); |
| 535 | list_for_each_entry_safe(reply, r, &card->cmd_waiter_list, list) { |
| 536 | if ((reply->seqno == QETH_IDX_COMMAND_SEQNO) || |
| 537 | ((cmd) && (reply->seqno == cmd->hdr.seqno))) { |
| 538 | qeth_get_reply(reply); |
| 539 | list_del_init(&reply->list); |
| 540 | spin_unlock_irqrestore(&card->lock, flags); |
| 541 | keep_reply = 0; |
| 542 | if (reply->callback != NULL) { |
| 543 | if (cmd) { |
| 544 | reply->offset = (__u16)((char *)cmd - |
| 545 | (char *)iob->data); |
| 546 | keep_reply = reply->callback(card, |
| 547 | reply, |
| 548 | (unsigned long)cmd); |
| 549 | } else |
| 550 | keep_reply = reply->callback(card, |
| 551 | reply, |
| 552 | (unsigned long)iob); |
| 553 | } |
| 554 | if (cmd) |
| 555 | reply->rc = (u16) cmd->hdr.return_code; |
| 556 | else if (iob->rc) |
| 557 | reply->rc = iob->rc; |
| 558 | if (keep_reply) { |
| 559 | spin_lock_irqsave(&card->lock, flags); |
| 560 | list_add_tail(&reply->list, |
| 561 | &card->cmd_waiter_list); |
| 562 | spin_unlock_irqrestore(&card->lock, flags); |
| 563 | } else { |
| 564 | atomic_inc(&reply->received); |
| 565 | wake_up(&reply->wait_q); |
| 566 | } |
| 567 | qeth_put_reply(reply); |
| 568 | goto out; |
| 569 | } |
| 570 | } |
| 571 | spin_unlock_irqrestore(&card->lock, flags); |
| 572 | out: |
| 573 | memcpy(&card->seqno.pdu_hdr_ack, |
| 574 | QETH_PDU_HEADER_SEQ_NO(iob->data), |
| 575 | QETH_SEQ_NO_LENGTH); |
| 576 | qeth_release_buffer(channel, iob); |
| 577 | } |
| 578 | |
| 579 | static int qeth_setup_channel(struct qeth_channel *channel) |
| 580 | { |
| 581 | int cnt; |
| 582 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 583 | QETH_DBF_TEXT(SETUP, 2, "setupch"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 584 | for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) { |
Julia Lawall | ae57b20 | 2010-05-16 21:15:13 +0000 | [diff] [blame] | 585 | channel->iob[cnt].data = |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 586 | kmalloc(QETH_BUFSIZE, GFP_DMA|GFP_KERNEL); |
| 587 | if (channel->iob[cnt].data == NULL) |
| 588 | break; |
| 589 | channel->iob[cnt].state = BUF_STATE_FREE; |
| 590 | channel->iob[cnt].channel = channel; |
| 591 | channel->iob[cnt].callback = qeth_send_control_data_cb; |
| 592 | channel->iob[cnt].rc = 0; |
| 593 | } |
| 594 | if (cnt < QETH_CMD_BUFFER_NO) { |
| 595 | while (cnt-- > 0) |
| 596 | kfree(channel->iob[cnt].data); |
| 597 | return -ENOMEM; |
| 598 | } |
| 599 | channel->buf_no = 0; |
| 600 | channel->io_buf_no = 0; |
| 601 | atomic_set(&channel->irq_pending, 0); |
| 602 | spin_lock_init(&channel->iob_lock); |
| 603 | |
| 604 | init_waitqueue_head(&channel->wait_q); |
| 605 | return 0; |
| 606 | } |
| 607 | |
| 608 | static int qeth_set_thread_start_bit(struct qeth_card *card, |
| 609 | unsigned long thread) |
| 610 | { |
| 611 | unsigned long flags; |
| 612 | |
| 613 | spin_lock_irqsave(&card->thread_mask_lock, flags); |
| 614 | if (!(card->thread_allowed_mask & thread) || |
| 615 | (card->thread_start_mask & thread)) { |
| 616 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| 617 | return -EPERM; |
| 618 | } |
| 619 | card->thread_start_mask |= thread; |
| 620 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| 621 | return 0; |
| 622 | } |
| 623 | |
| 624 | void qeth_clear_thread_start_bit(struct qeth_card *card, unsigned long thread) |
| 625 | { |
| 626 | unsigned long flags; |
| 627 | |
| 628 | spin_lock_irqsave(&card->thread_mask_lock, flags); |
| 629 | card->thread_start_mask &= ~thread; |
| 630 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| 631 | wake_up(&card->wait_q); |
| 632 | } |
| 633 | EXPORT_SYMBOL_GPL(qeth_clear_thread_start_bit); |
| 634 | |
| 635 | void qeth_clear_thread_running_bit(struct qeth_card *card, unsigned long thread) |
| 636 | { |
| 637 | unsigned long flags; |
| 638 | |
| 639 | spin_lock_irqsave(&card->thread_mask_lock, flags); |
| 640 | card->thread_running_mask &= ~thread; |
| 641 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| 642 | wake_up(&card->wait_q); |
| 643 | } |
| 644 | EXPORT_SYMBOL_GPL(qeth_clear_thread_running_bit); |
| 645 | |
| 646 | static int __qeth_do_run_thread(struct qeth_card *card, unsigned long thread) |
| 647 | { |
| 648 | unsigned long flags; |
| 649 | int rc = 0; |
| 650 | |
| 651 | spin_lock_irqsave(&card->thread_mask_lock, flags); |
| 652 | if (card->thread_start_mask & thread) { |
| 653 | if ((card->thread_allowed_mask & thread) && |
| 654 | !(card->thread_running_mask & thread)) { |
| 655 | rc = 1; |
| 656 | card->thread_start_mask &= ~thread; |
| 657 | card->thread_running_mask |= thread; |
| 658 | } else |
| 659 | rc = -EPERM; |
| 660 | } |
| 661 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| 662 | return rc; |
| 663 | } |
| 664 | |
| 665 | int qeth_do_run_thread(struct qeth_card *card, unsigned long thread) |
| 666 | { |
| 667 | int rc = 0; |
| 668 | |
| 669 | wait_event(card->wait_q, |
| 670 | (rc = __qeth_do_run_thread(card, thread)) >= 0); |
| 671 | return rc; |
| 672 | } |
| 673 | EXPORT_SYMBOL_GPL(qeth_do_run_thread); |
| 674 | |
| 675 | void qeth_schedule_recovery(struct qeth_card *card) |
| 676 | { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 677 | QETH_CARD_TEXT(card, 2, "startrec"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 678 | if (qeth_set_thread_start_bit(card, QETH_RECOVER_THREAD) == 0) |
| 679 | schedule_work(&card->kernel_thread_starter); |
| 680 | } |
| 681 | EXPORT_SYMBOL_GPL(qeth_schedule_recovery); |
| 682 | |
| 683 | static int qeth_get_problem(struct ccw_device *cdev, struct irb *irb) |
| 684 | { |
| 685 | int dstat, cstat; |
| 686 | char *sense; |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 687 | struct qeth_card *card; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 688 | |
| 689 | sense = (char *) irb->ecw; |
Peter Oberparleiter | 23d805b | 2008-07-14 09:58:50 +0200 | [diff] [blame] | 690 | cstat = irb->scsw.cmd.cstat; |
| 691 | dstat = irb->scsw.cmd.dstat; |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 692 | card = CARD_FROM_CDEV(cdev); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 693 | |
| 694 | if (cstat & (SCHN_STAT_CHN_CTRL_CHK | SCHN_STAT_INTF_CTRL_CHK | |
| 695 | SCHN_STAT_CHN_DATA_CHK | SCHN_STAT_CHAIN_CHECK | |
| 696 | SCHN_STAT_PROT_CHECK | SCHN_STAT_PROG_CHECK)) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 697 | QETH_CARD_TEXT(card, 2, "CGENCHK"); |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 698 | dev_warn(&cdev->dev, "The qeth device driver " |
| 699 | "failed to recover an error on the device\n"); |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 700 | 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] | 701 | dev_name(&cdev->dev), dstat, cstat); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 702 | print_hex_dump(KERN_WARNING, "qeth: irb ", DUMP_PREFIX_OFFSET, |
| 703 | 16, 1, irb, 64, 1); |
| 704 | return 1; |
| 705 | } |
| 706 | |
| 707 | if (dstat & DEV_STAT_UNIT_CHECK) { |
| 708 | if (sense[SENSE_RESETTING_EVENT_BYTE] & |
| 709 | SENSE_RESETTING_EVENT_FLAG) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 710 | QETH_CARD_TEXT(card, 2, "REVIND"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 711 | return 1; |
| 712 | } |
| 713 | if (sense[SENSE_COMMAND_REJECT_BYTE] & |
| 714 | SENSE_COMMAND_REJECT_FLAG) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 715 | QETH_CARD_TEXT(card, 2, "CMDREJi"); |
Ursula Braun | 28a7e4c | 2008-09-19 12:56:03 +0200 | [diff] [blame] | 716 | return 1; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 717 | } |
| 718 | if ((sense[2] == 0xaf) && (sense[3] == 0xfe)) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 719 | QETH_CARD_TEXT(card, 2, "AFFE"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 720 | return 1; |
| 721 | } |
| 722 | if ((!sense[0]) && (!sense[1]) && (!sense[2]) && (!sense[3])) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 723 | QETH_CARD_TEXT(card, 2, "ZEROSEN"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 724 | return 0; |
| 725 | } |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 726 | QETH_CARD_TEXT(card, 2, "DGENCHK"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 727 | return 1; |
| 728 | } |
| 729 | return 0; |
| 730 | } |
| 731 | |
| 732 | static long __qeth_check_irb_error(struct ccw_device *cdev, |
| 733 | unsigned long intparm, struct irb *irb) |
| 734 | { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 735 | struct qeth_card *card; |
| 736 | |
| 737 | card = CARD_FROM_CDEV(cdev); |
| 738 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 739 | if (!IS_ERR(irb)) |
| 740 | return 0; |
| 741 | |
| 742 | switch (PTR_ERR(irb)) { |
| 743 | case -EIO: |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 744 | QETH_DBF_MESSAGE(2, "%s i/o-error on device\n", |
| 745 | dev_name(&cdev->dev)); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 746 | QETH_CARD_TEXT(card, 2, "ckirberr"); |
| 747 | QETH_CARD_TEXT_(card, 2, " rc%d", -EIO); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 748 | break; |
| 749 | case -ETIMEDOUT: |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 750 | dev_warn(&cdev->dev, "A hardware operation timed out" |
| 751 | " on the device\n"); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 752 | QETH_CARD_TEXT(card, 2, "ckirberr"); |
| 753 | QETH_CARD_TEXT_(card, 2, " rc%d", -ETIMEDOUT); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 754 | if (intparm == QETH_RCD_PARM) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 755 | if (card && (card->data.ccwdev == cdev)) { |
| 756 | card->data.state = CH_STATE_DOWN; |
| 757 | wake_up(&card->wait_q); |
| 758 | } |
| 759 | } |
| 760 | break; |
| 761 | default: |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 762 | QETH_DBF_MESSAGE(2, "%s unknown error %ld on device\n", |
| 763 | dev_name(&cdev->dev), PTR_ERR(irb)); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 764 | QETH_CARD_TEXT(card, 2, "ckirberr"); |
| 765 | QETH_CARD_TEXT(card, 2, " rc???"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 766 | } |
| 767 | return PTR_ERR(irb); |
| 768 | } |
| 769 | |
| 770 | static void qeth_irq(struct ccw_device *cdev, unsigned long intparm, |
| 771 | struct irb *irb) |
| 772 | { |
| 773 | int rc; |
| 774 | int cstat, dstat; |
| 775 | struct qeth_cmd_buffer *buffer; |
| 776 | struct qeth_channel *channel; |
| 777 | struct qeth_card *card; |
| 778 | struct qeth_cmd_buffer *iob; |
| 779 | __u8 index; |
| 780 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 781 | if (__qeth_check_irb_error(cdev, intparm, irb)) |
| 782 | return; |
Peter Oberparleiter | 23d805b | 2008-07-14 09:58:50 +0200 | [diff] [blame] | 783 | cstat = irb->scsw.cmd.cstat; |
| 784 | dstat = irb->scsw.cmd.dstat; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 785 | |
| 786 | card = CARD_FROM_CDEV(cdev); |
| 787 | if (!card) |
| 788 | return; |
| 789 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 790 | QETH_CARD_TEXT(card, 5, "irq"); |
| 791 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 792 | if (card->read.ccwdev == cdev) { |
| 793 | channel = &card->read; |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 794 | QETH_CARD_TEXT(card, 5, "read"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 795 | } else if (card->write.ccwdev == cdev) { |
| 796 | channel = &card->write; |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 797 | QETH_CARD_TEXT(card, 5, "write"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 798 | } else { |
| 799 | channel = &card->data; |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 800 | QETH_CARD_TEXT(card, 5, "data"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 801 | } |
| 802 | atomic_set(&channel->irq_pending, 0); |
| 803 | |
Peter Oberparleiter | 23d805b | 2008-07-14 09:58:50 +0200 | [diff] [blame] | 804 | if (irb->scsw.cmd.fctl & (SCSW_FCTL_CLEAR_FUNC)) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 805 | channel->state = CH_STATE_STOPPED; |
| 806 | |
Peter Oberparleiter | 23d805b | 2008-07-14 09:58:50 +0200 | [diff] [blame] | 807 | if (irb->scsw.cmd.fctl & (SCSW_FCTL_HALT_FUNC)) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 808 | channel->state = CH_STATE_HALTED; |
| 809 | |
| 810 | /*let's wake up immediately on data channel*/ |
| 811 | if ((channel == &card->data) && (intparm != 0) && |
| 812 | (intparm != QETH_RCD_PARM)) |
| 813 | goto out; |
| 814 | |
| 815 | if (intparm == QETH_CLEAR_CHANNEL_PARM) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 816 | QETH_CARD_TEXT(card, 6, "clrchpar"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 817 | /* we don't have to handle this further */ |
| 818 | intparm = 0; |
| 819 | } |
| 820 | if (intparm == QETH_HALT_CHANNEL_PARM) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 821 | QETH_CARD_TEXT(card, 6, "hltchpar"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 822 | /* we don't have to handle this further */ |
| 823 | intparm = 0; |
| 824 | } |
| 825 | if ((dstat & DEV_STAT_UNIT_EXCEP) || |
| 826 | (dstat & DEV_STAT_UNIT_CHECK) || |
| 827 | (cstat)) { |
| 828 | if (irb->esw.esw0.erw.cons) { |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 829 | dev_warn(&channel->ccwdev->dev, |
| 830 | "The qeth device driver failed to recover " |
| 831 | "an error on the device\n"); |
| 832 | QETH_DBF_MESSAGE(2, "%s sense data available. cstat " |
| 833 | "0x%X dstat 0x%X\n", |
| 834 | dev_name(&channel->ccwdev->dev), cstat, dstat); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 835 | print_hex_dump(KERN_WARNING, "qeth: irb ", |
| 836 | DUMP_PREFIX_OFFSET, 16, 1, irb, 32, 1); |
| 837 | print_hex_dump(KERN_WARNING, "qeth: sense data ", |
| 838 | DUMP_PREFIX_OFFSET, 16, 1, irb->ecw, 32, 1); |
| 839 | } |
| 840 | if (intparm == QETH_RCD_PARM) { |
| 841 | channel->state = CH_STATE_DOWN; |
| 842 | goto out; |
| 843 | } |
| 844 | rc = qeth_get_problem(cdev, irb); |
| 845 | if (rc) { |
Ursula Braun | 28a7e4c | 2008-09-19 12:56:03 +0200 | [diff] [blame] | 846 | qeth_clear_ipacmd_list(card); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 847 | qeth_schedule_recovery(card); |
| 848 | goto out; |
| 849 | } |
| 850 | } |
| 851 | |
| 852 | if (intparm == QETH_RCD_PARM) { |
| 853 | channel->state = CH_STATE_RCD_DONE; |
| 854 | goto out; |
| 855 | } |
| 856 | if (intparm) { |
| 857 | buffer = (struct qeth_cmd_buffer *) __va((addr_t)intparm); |
| 858 | buffer->state = BUF_STATE_PROCESSED; |
| 859 | } |
| 860 | if (channel == &card->data) |
| 861 | return; |
| 862 | if (channel == &card->read && |
| 863 | channel->state == CH_STATE_UP) |
| 864 | qeth_issue_next_read(card); |
| 865 | |
| 866 | iob = channel->iob; |
| 867 | index = channel->buf_no; |
| 868 | while (iob[index].state == BUF_STATE_PROCESSED) { |
| 869 | if (iob[index].callback != NULL) |
| 870 | iob[index].callback(channel, iob + index); |
| 871 | |
| 872 | index = (index + 1) % QETH_CMD_BUFFER_NO; |
| 873 | } |
| 874 | channel->buf_no = index; |
| 875 | out: |
| 876 | wake_up(&card->wait_q); |
| 877 | return; |
| 878 | } |
| 879 | |
Klaus-Dieter Wacker | 58490f1 | 2009-08-26 02:01:06 +0000 | [diff] [blame] | 880 | static void __qeth_clear_output_buffer(struct qeth_qdio_out_q *queue, |
| 881 | struct qeth_qdio_out_buffer *buf, unsigned int qeth_skip_skb) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 882 | { |
| 883 | int i; |
| 884 | struct sk_buff *skb; |
| 885 | |
| 886 | /* is PCI flag set on buffer? */ |
| 887 | if (buf->buffer->element[0].flags & 0x40) |
| 888 | atomic_dec(&queue->set_pci_flags_count); |
| 889 | |
Klaus-Dieter Wacker | 58490f1 | 2009-08-26 02:01:06 +0000 | [diff] [blame] | 890 | if (!qeth_skip_skb) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 891 | skb = skb_dequeue(&buf->skb_list); |
Klaus-Dieter Wacker | 58490f1 | 2009-08-26 02:01:06 +0000 | [diff] [blame] | 892 | while (skb) { |
| 893 | atomic_dec(&skb->users); |
| 894 | dev_kfree_skb_any(skb); |
| 895 | skb = skb_dequeue(&buf->skb_list); |
| 896 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 897 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 898 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(queue->card); ++i) { |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 899 | if (buf->buffer->element[i].addr && buf->is_header[i]) |
| 900 | kmem_cache_free(qeth_core_header_cache, |
| 901 | buf->buffer->element[i].addr); |
| 902 | buf->is_header[i] = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 903 | buf->buffer->element[i].length = 0; |
| 904 | buf->buffer->element[i].addr = NULL; |
| 905 | buf->buffer->element[i].flags = 0; |
| 906 | } |
Klaus-Dieter Wacket | 9f29f6d | 2009-05-19 21:38:41 +0000 | [diff] [blame] | 907 | buf->buffer->element[15].flags = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 908 | buf->next_element_to_fill = 0; |
| 909 | atomic_set(&buf->state, QETH_QDIO_BUF_EMPTY); |
| 910 | } |
| 911 | |
Klaus-Dieter Wacker | 58490f1 | 2009-08-26 02:01:06 +0000 | [diff] [blame] | 912 | static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue, |
| 913 | struct qeth_qdio_out_buffer *buf) |
| 914 | { |
| 915 | __qeth_clear_output_buffer(queue, buf, 0); |
| 916 | } |
| 917 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 918 | void qeth_clear_qdio_buffers(struct qeth_card *card) |
| 919 | { |
| 920 | int i, j; |
| 921 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 922 | QETH_CARD_TEXT(card, 2, "clearqdbf"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 923 | /* clear outbound buffers to free skbs */ |
| 924 | for (i = 0; i < card->qdio.no_out_queues; ++i) |
| 925 | if (card->qdio.out_qs[i]) { |
| 926 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) |
| 927 | qeth_clear_output_buffer(card->qdio.out_qs[i], |
| 928 | &card->qdio.out_qs[i]->bufs[j]); |
| 929 | } |
| 930 | } |
| 931 | EXPORT_SYMBOL_GPL(qeth_clear_qdio_buffers); |
| 932 | |
| 933 | static void qeth_free_buffer_pool(struct qeth_card *card) |
| 934 | { |
| 935 | struct qeth_buffer_pool_entry *pool_entry, *tmp; |
| 936 | int i = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 937 | list_for_each_entry_safe(pool_entry, tmp, |
| 938 | &card->qdio.init_pool.entry_list, init_list){ |
| 939 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) |
| 940 | free_page((unsigned long)pool_entry->elements[i]); |
| 941 | list_del(&pool_entry->init_list); |
| 942 | kfree(pool_entry); |
| 943 | } |
| 944 | } |
| 945 | |
| 946 | static void qeth_free_qdio_buffers(struct qeth_card *card) |
| 947 | { |
| 948 | int i, j; |
| 949 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 950 | if (atomic_xchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED) == |
| 951 | QETH_QDIO_UNINITIALIZED) |
| 952 | return; |
| 953 | kfree(card->qdio.in_q); |
| 954 | card->qdio.in_q = NULL; |
| 955 | /* inbound buffer pool */ |
| 956 | qeth_free_buffer_pool(card); |
| 957 | /* free outbound qdio_qs */ |
| 958 | if (card->qdio.out_qs) { |
| 959 | for (i = 0; i < card->qdio.no_out_queues; ++i) { |
| 960 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) |
| 961 | qeth_clear_output_buffer(card->qdio.out_qs[i], |
| 962 | &card->qdio.out_qs[i]->bufs[j]); |
| 963 | kfree(card->qdio.out_qs[i]); |
| 964 | } |
| 965 | kfree(card->qdio.out_qs); |
| 966 | card->qdio.out_qs = NULL; |
| 967 | } |
| 968 | } |
| 969 | |
| 970 | static void qeth_clean_channel(struct qeth_channel *channel) |
| 971 | { |
| 972 | int cnt; |
| 973 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 974 | QETH_DBF_TEXT(SETUP, 2, "freech"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 975 | for (cnt = 0; cnt < QETH_CMD_BUFFER_NO; cnt++) |
| 976 | kfree(channel->iob[cnt].data); |
| 977 | } |
| 978 | |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 979 | static void qeth_get_channel_path_desc(struct qeth_card *card) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 980 | { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 981 | struct ccw_device *ccwdev; |
| 982 | struct channelPath_dsc { |
| 983 | u8 flags; |
| 984 | u8 lsn; |
| 985 | u8 desc; |
| 986 | u8 chpid; |
| 987 | u8 swla; |
| 988 | u8 zeroes; |
| 989 | u8 chla; |
| 990 | u8 chpp; |
| 991 | } *chp_dsc; |
| 992 | |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 993 | QETH_DBF_TEXT(SETUP, 2, "chp_desc"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 994 | |
| 995 | ccwdev = card->data.ccwdev; |
| 996 | chp_dsc = (struct channelPath_dsc *)ccw_device_get_chp_desc(ccwdev, 0); |
| 997 | if (chp_dsc != NULL) { |
| 998 | /* CHPP field bit 6 == 1 -> single queue */ |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 999 | if ((chp_dsc->chpp & 0x02) == 0x02) |
| 1000 | card->qdio.no_out_queues = 1; |
| 1001 | card->info.func_level = 0x4100 + chp_dsc->desc; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1002 | kfree(chp_dsc); |
| 1003 | } |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1004 | if (card->qdio.no_out_queues == 1) { |
| 1005 | card->qdio.default_out_queue = 0; |
| 1006 | dev_info(&card->gdev->dev, |
| 1007 | "Priority Queueing not supported\n"); |
| 1008 | } |
| 1009 | QETH_DBF_TEXT_(SETUP, 2, "nr:%x", card->qdio.no_out_queues); |
| 1010 | QETH_DBF_TEXT_(SETUP, 2, "lvl:%02x", card->info.func_level); |
| 1011 | return; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1012 | } |
| 1013 | |
| 1014 | static void qeth_init_qdio_info(struct qeth_card *card) |
| 1015 | { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1016 | QETH_DBF_TEXT(SETUP, 4, "intqdinf"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1017 | atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); |
| 1018 | /* inbound */ |
| 1019 | card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT; |
| 1020 | card->qdio.init_pool.buf_count = QETH_IN_BUF_COUNT_DEFAULT; |
| 1021 | card->qdio.in_buf_pool.buf_count = card->qdio.init_pool.buf_count; |
| 1022 | INIT_LIST_HEAD(&card->qdio.in_buf_pool.entry_list); |
| 1023 | INIT_LIST_HEAD(&card->qdio.init_pool.entry_list); |
| 1024 | } |
| 1025 | |
| 1026 | static void qeth_set_intial_options(struct qeth_card *card) |
| 1027 | { |
| 1028 | card->options.route4.type = NO_ROUTER; |
| 1029 | card->options.route6.type = NO_ROUTER; |
| 1030 | card->options.checksum_type = QETH_CHECKSUM_DEFAULT; |
| 1031 | card->options.broadcast_mode = QETH_TR_BROADCAST_ALLRINGS; |
| 1032 | card->options.macaddr_mode = QETH_TR_MACADDR_NONCANONICAL; |
| 1033 | card->options.fake_broadcast = 0; |
| 1034 | card->options.add_hhlen = DEFAULT_ADD_HHLEN; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1035 | card->options.performance_stats = 0; |
| 1036 | card->options.rx_sg_cb = QETH_RX_SG_CB; |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 1037 | card->options.isolation = ISOLATION_MODE_NONE; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1038 | } |
| 1039 | |
| 1040 | static int qeth_do_start_thread(struct qeth_card *card, unsigned long thread) |
| 1041 | { |
| 1042 | unsigned long flags; |
| 1043 | int rc = 0; |
| 1044 | |
| 1045 | spin_lock_irqsave(&card->thread_mask_lock, flags); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1046 | QETH_CARD_TEXT_(card, 4, " %02x%02x%02x", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1047 | (u8) card->thread_start_mask, |
| 1048 | (u8) card->thread_allowed_mask, |
| 1049 | (u8) card->thread_running_mask); |
| 1050 | rc = (card->thread_start_mask & thread); |
| 1051 | spin_unlock_irqrestore(&card->thread_mask_lock, flags); |
| 1052 | return rc; |
| 1053 | } |
| 1054 | |
| 1055 | static void qeth_start_kernel_thread(struct work_struct *work) |
| 1056 | { |
| 1057 | struct qeth_card *card = container_of(work, struct qeth_card, |
| 1058 | kernel_thread_starter); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1059 | QETH_CARD_TEXT(card , 2, "strthrd"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1060 | |
| 1061 | if (card->read.state != CH_STATE_UP && |
| 1062 | card->write.state != CH_STATE_UP) |
| 1063 | return; |
| 1064 | if (qeth_do_start_thread(card, QETH_RECOVER_THREAD)) |
| 1065 | kthread_run(card->discipline.recover, (void *) card, |
| 1066 | "qeth_recover"); |
| 1067 | } |
| 1068 | |
| 1069 | static int qeth_setup_card(struct qeth_card *card) |
| 1070 | { |
| 1071 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1072 | QETH_DBF_TEXT(SETUP, 2, "setupcrd"); |
| 1073 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1074 | |
| 1075 | card->read.state = CH_STATE_DOWN; |
| 1076 | card->write.state = CH_STATE_DOWN; |
| 1077 | card->data.state = CH_STATE_DOWN; |
| 1078 | card->state = CARD_STATE_DOWN; |
| 1079 | card->lan_online = 0; |
| 1080 | card->use_hard_stop = 0; |
Ursula Braun | 908abbb | 2010-07-22 23:15:06 +0000 | [diff] [blame] | 1081 | card->read_or_write_problem = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1082 | card->dev = NULL; |
| 1083 | spin_lock_init(&card->vlanlock); |
| 1084 | spin_lock_init(&card->mclock); |
| 1085 | card->vlangrp = NULL; |
| 1086 | spin_lock_init(&card->lock); |
| 1087 | spin_lock_init(&card->ip_lock); |
| 1088 | spin_lock_init(&card->thread_mask_lock); |
Frank Blaschka | c4949f0 | 2010-05-11 19:34:47 +0000 | [diff] [blame] | 1089 | mutex_init(&card->conf_mutex); |
Ursula Braun | 9dc48cc | 2010-07-22 23:15:05 +0000 | [diff] [blame] | 1090 | mutex_init(&card->discipline_mutex); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1091 | card->thread_start_mask = 0; |
| 1092 | card->thread_allowed_mask = 0; |
| 1093 | card->thread_running_mask = 0; |
| 1094 | INIT_WORK(&card->kernel_thread_starter, qeth_start_kernel_thread); |
| 1095 | INIT_LIST_HEAD(&card->ip_list); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1096 | INIT_LIST_HEAD(card->ip_tbd_list); |
| 1097 | INIT_LIST_HEAD(&card->cmd_waiter_list); |
| 1098 | init_waitqueue_head(&card->wait_q); |
| 1099 | /* intial options */ |
| 1100 | qeth_set_intial_options(card); |
| 1101 | /* IP address takeover */ |
| 1102 | INIT_LIST_HEAD(&card->ipato.entries); |
| 1103 | card->ipato.enabled = 0; |
| 1104 | card->ipato.invert4 = 0; |
| 1105 | card->ipato.invert6 = 0; |
| 1106 | /* init QDIO stuff */ |
| 1107 | qeth_init_qdio_info(card); |
| 1108 | return 0; |
| 1109 | } |
| 1110 | |
Martin Schwidefsky | 6bcac50 | 2008-12-25 13:38:49 +0100 | [diff] [blame] | 1111 | static void qeth_core_sl_print(struct seq_file *m, struct service_level *slr) |
| 1112 | { |
| 1113 | struct qeth_card *card = container_of(slr, struct qeth_card, |
| 1114 | qeth_service_level); |
Klaus-Dieter Wacker | 0d788c7 | 2009-08-26 02:01:09 +0000 | [diff] [blame] | 1115 | if (card->info.mcl_level[0]) |
| 1116 | seq_printf(m, "qeth: %s firmware level %s\n", |
| 1117 | CARD_BUS_ID(card), card->info.mcl_level); |
Martin Schwidefsky | 6bcac50 | 2008-12-25 13:38:49 +0100 | [diff] [blame] | 1118 | } |
| 1119 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1120 | static struct qeth_card *qeth_alloc_card(void) |
| 1121 | { |
| 1122 | struct qeth_card *card; |
| 1123 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1124 | QETH_DBF_TEXT(SETUP, 2, "alloccrd"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1125 | card = kzalloc(sizeof(struct qeth_card), GFP_DMA|GFP_KERNEL); |
| 1126 | if (!card) |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 1127 | goto out; |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1128 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 1129 | card->ip_tbd_list = kmalloc(sizeof(struct list_head), GFP_KERNEL); |
| 1130 | if (!card->ip_tbd_list) { |
| 1131 | QETH_DBF_TEXT(SETUP, 0, "iptbdnom"); |
| 1132 | goto out_card; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1133 | } |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 1134 | if (qeth_setup_channel(&card->read)) |
| 1135 | goto out_ip; |
| 1136 | if (qeth_setup_channel(&card->write)) |
| 1137 | goto out_channel; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1138 | card->options.layer2 = -1; |
Martin Schwidefsky | 6bcac50 | 2008-12-25 13:38:49 +0100 | [diff] [blame] | 1139 | card->qeth_service_level.seq_print = qeth_core_sl_print; |
| 1140 | register_service_level(&card->qeth_service_level); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1141 | return card; |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 1142 | |
| 1143 | out_channel: |
| 1144 | qeth_clean_channel(&card->read); |
| 1145 | out_ip: |
| 1146 | kfree(card->ip_tbd_list); |
| 1147 | out_card: |
| 1148 | kfree(card); |
| 1149 | out: |
| 1150 | return NULL; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1151 | } |
| 1152 | |
| 1153 | static int qeth_determine_card_type(struct qeth_card *card) |
| 1154 | { |
| 1155 | int i = 0; |
| 1156 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1157 | QETH_DBF_TEXT(SETUP, 2, "detcdtyp"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1158 | |
| 1159 | card->qdio.do_prio_queueing = QETH_PRIOQ_DEFAULT; |
| 1160 | card->qdio.default_out_queue = QETH_DEFAULT_QUEUE; |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1161 | while (known_devices[i][QETH_DEV_MODEL_IND]) { |
| 1162 | if ((CARD_RDEV(card)->id.dev_type == |
| 1163 | known_devices[i][QETH_DEV_TYPE_IND]) && |
| 1164 | (CARD_RDEV(card)->id.dev_model == |
| 1165 | known_devices[i][QETH_DEV_MODEL_IND])) { |
| 1166 | card->info.type = known_devices[i][QETH_DEV_MODEL_IND]; |
| 1167 | card->qdio.no_out_queues = |
| 1168 | known_devices[i][QETH_QUEUE_NO_IND]; |
| 1169 | card->info.is_multicast_different = |
| 1170 | known_devices[i][QETH_MULTICAST_IND]; |
| 1171 | qeth_get_channel_path_desc(card); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1172 | return 0; |
| 1173 | } |
| 1174 | i++; |
| 1175 | } |
| 1176 | card->info.type = QETH_CARD_TYPE_UNKNOWN; |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 1177 | dev_err(&card->gdev->dev, "The adapter hardware is of an " |
| 1178 | "unknown type\n"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1179 | return -ENOENT; |
| 1180 | } |
| 1181 | |
| 1182 | static int qeth_clear_channel(struct qeth_channel *channel) |
| 1183 | { |
| 1184 | unsigned long flags; |
| 1185 | struct qeth_card *card; |
| 1186 | int rc; |
| 1187 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1188 | card = CARD_FROM_CDEV(channel->ccwdev); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1189 | QETH_CARD_TEXT(card, 3, "clearch"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1190 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
| 1191 | rc = ccw_device_clear(channel->ccwdev, QETH_CLEAR_CHANNEL_PARM); |
| 1192 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); |
| 1193 | |
| 1194 | if (rc) |
| 1195 | return rc; |
| 1196 | rc = wait_event_interruptible_timeout(card->wait_q, |
| 1197 | channel->state == CH_STATE_STOPPED, QETH_TIMEOUT); |
| 1198 | if (rc == -ERESTARTSYS) |
| 1199 | return rc; |
| 1200 | if (channel->state != CH_STATE_STOPPED) |
| 1201 | return -ETIME; |
| 1202 | channel->state = CH_STATE_DOWN; |
| 1203 | return 0; |
| 1204 | } |
| 1205 | |
| 1206 | static int qeth_halt_channel(struct qeth_channel *channel) |
| 1207 | { |
| 1208 | unsigned long flags; |
| 1209 | struct qeth_card *card; |
| 1210 | int rc; |
| 1211 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1212 | card = CARD_FROM_CDEV(channel->ccwdev); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1213 | QETH_CARD_TEXT(card, 3, "haltch"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1214 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
| 1215 | rc = ccw_device_halt(channel->ccwdev, QETH_HALT_CHANNEL_PARM); |
| 1216 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); |
| 1217 | |
| 1218 | if (rc) |
| 1219 | return rc; |
| 1220 | rc = wait_event_interruptible_timeout(card->wait_q, |
| 1221 | channel->state == CH_STATE_HALTED, QETH_TIMEOUT); |
| 1222 | if (rc == -ERESTARTSYS) |
| 1223 | return rc; |
| 1224 | if (channel->state != CH_STATE_HALTED) |
| 1225 | return -ETIME; |
| 1226 | return 0; |
| 1227 | } |
| 1228 | |
| 1229 | static int qeth_halt_channels(struct qeth_card *card) |
| 1230 | { |
| 1231 | int rc1 = 0, rc2 = 0, rc3 = 0; |
| 1232 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1233 | QETH_CARD_TEXT(card, 3, "haltchs"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1234 | rc1 = qeth_halt_channel(&card->read); |
| 1235 | rc2 = qeth_halt_channel(&card->write); |
| 1236 | rc3 = qeth_halt_channel(&card->data); |
| 1237 | if (rc1) |
| 1238 | return rc1; |
| 1239 | if (rc2) |
| 1240 | return rc2; |
| 1241 | return rc3; |
| 1242 | } |
| 1243 | |
| 1244 | static int qeth_clear_channels(struct qeth_card *card) |
| 1245 | { |
| 1246 | int rc1 = 0, rc2 = 0, rc3 = 0; |
| 1247 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1248 | QETH_CARD_TEXT(card, 3, "clearchs"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1249 | rc1 = qeth_clear_channel(&card->read); |
| 1250 | rc2 = qeth_clear_channel(&card->write); |
| 1251 | rc3 = qeth_clear_channel(&card->data); |
| 1252 | if (rc1) |
| 1253 | return rc1; |
| 1254 | if (rc2) |
| 1255 | return rc2; |
| 1256 | return rc3; |
| 1257 | } |
| 1258 | |
| 1259 | static int qeth_clear_halt_card(struct qeth_card *card, int halt) |
| 1260 | { |
| 1261 | int rc = 0; |
| 1262 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1263 | QETH_CARD_TEXT(card, 3, "clhacrd"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1264 | |
| 1265 | if (halt) |
| 1266 | rc = qeth_halt_channels(card); |
| 1267 | if (rc) |
| 1268 | return rc; |
| 1269 | return qeth_clear_channels(card); |
| 1270 | } |
| 1271 | |
| 1272 | int qeth_qdio_clear_card(struct qeth_card *card, int use_halt) |
| 1273 | { |
| 1274 | int rc = 0; |
| 1275 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1276 | QETH_CARD_TEXT(card, 3, "qdioclr"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1277 | switch (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ESTABLISHED, |
| 1278 | QETH_QDIO_CLEANING)) { |
| 1279 | case QETH_QDIO_ESTABLISHED: |
| 1280 | if (card->info.type == QETH_CARD_TYPE_IQD) |
Jan Glauber | cc961d4 | 2010-05-17 10:00:19 +0200 | [diff] [blame] | 1281 | rc = qdio_shutdown(CARD_DDEV(card), |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1282 | QDIO_FLAG_CLEANUP_USING_HALT); |
| 1283 | else |
Jan Glauber | cc961d4 | 2010-05-17 10:00:19 +0200 | [diff] [blame] | 1284 | rc = qdio_shutdown(CARD_DDEV(card), |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1285 | QDIO_FLAG_CLEANUP_USING_CLEAR); |
| 1286 | if (rc) |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1287 | QETH_CARD_TEXT_(card, 3, "1err%d", rc); |
Jan Glauber | cc961d4 | 2010-05-17 10:00:19 +0200 | [diff] [blame] | 1288 | qdio_free(CARD_DDEV(card)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1289 | atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); |
| 1290 | break; |
| 1291 | case QETH_QDIO_CLEANING: |
| 1292 | return rc; |
| 1293 | default: |
| 1294 | break; |
| 1295 | } |
| 1296 | rc = qeth_clear_halt_card(card, use_halt); |
| 1297 | if (rc) |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1298 | QETH_CARD_TEXT_(card, 3, "2err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1299 | card->state = CARD_STATE_DOWN; |
| 1300 | return rc; |
| 1301 | } |
| 1302 | EXPORT_SYMBOL_GPL(qeth_qdio_clear_card); |
| 1303 | |
| 1304 | static int qeth_read_conf_data(struct qeth_card *card, void **buffer, |
| 1305 | int *length) |
| 1306 | { |
| 1307 | struct ciw *ciw; |
| 1308 | char *rcd_buf; |
| 1309 | int ret; |
| 1310 | struct qeth_channel *channel = &card->data; |
| 1311 | unsigned long flags; |
| 1312 | |
| 1313 | /* |
| 1314 | * scan for RCD command in extended SenseID data |
| 1315 | */ |
| 1316 | ciw = ccw_device_get_ciw(channel->ccwdev, CIW_TYPE_RCD); |
| 1317 | if (!ciw || ciw->cmd == 0) |
| 1318 | return -EOPNOTSUPP; |
| 1319 | rcd_buf = kzalloc(ciw->count, GFP_KERNEL | GFP_DMA); |
| 1320 | if (!rcd_buf) |
| 1321 | return -ENOMEM; |
| 1322 | |
| 1323 | channel->ccw.cmd_code = ciw->cmd; |
| 1324 | channel->ccw.cda = (__u32) __pa(rcd_buf); |
| 1325 | channel->ccw.count = ciw->count; |
| 1326 | channel->ccw.flags = CCW_FLAG_SLI; |
| 1327 | channel->state = CH_STATE_RCD; |
| 1328 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
| 1329 | ret = ccw_device_start_timeout(channel->ccwdev, &channel->ccw, |
| 1330 | QETH_RCD_PARM, LPM_ANYPATH, 0, |
| 1331 | QETH_RCD_TIMEOUT); |
| 1332 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); |
| 1333 | if (!ret) |
| 1334 | wait_event(card->wait_q, |
| 1335 | (channel->state == CH_STATE_RCD_DONE || |
| 1336 | channel->state == CH_STATE_DOWN)); |
| 1337 | if (channel->state == CH_STATE_DOWN) |
| 1338 | ret = -EIO; |
| 1339 | else |
| 1340 | channel->state = CH_STATE_DOWN; |
| 1341 | if (ret) { |
| 1342 | kfree(rcd_buf); |
| 1343 | *buffer = NULL; |
| 1344 | *length = 0; |
| 1345 | } else { |
| 1346 | *length = ciw->count; |
| 1347 | *buffer = rcd_buf; |
| 1348 | } |
| 1349 | return ret; |
| 1350 | } |
| 1351 | |
Einar Lueck | a60389a | 2010-01-11 02:50:52 +0000 | [diff] [blame] | 1352 | static void qeth_configure_unitaddr(struct qeth_card *card, char *prcd) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1353 | { |
Einar Lueck | a60389a | 2010-01-11 02:50:52 +0000 | [diff] [blame] | 1354 | QETH_DBF_TEXT(SETUP, 2, "cfgunit"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1355 | card->info.chpid = prcd[30]; |
| 1356 | card->info.unit_addr2 = prcd[31]; |
| 1357 | card->info.cula = prcd[63]; |
| 1358 | card->info.guestlan = ((prcd[0x10] == _ascebc['V']) && |
| 1359 | (prcd[0x11] == _ascebc['M'])); |
Einar Lueck | a60389a | 2010-01-11 02:50:52 +0000 | [diff] [blame] | 1360 | } |
| 1361 | |
| 1362 | static void qeth_configure_blkt_default(struct qeth_card *card, char *prcd) |
| 1363 | { |
| 1364 | QETH_DBF_TEXT(SETUP, 2, "cfgblkt"); |
| 1365 | |
| 1366 | if (prcd[74] == 0xF0 && prcd[75] == 0xF0 && prcd[76] == 0xF5) { |
| 1367 | card->info.blkt.time_total = 250; |
| 1368 | card->info.blkt.inter_packet = 5; |
| 1369 | card->info.blkt.inter_packet_jumbo = 15; |
| 1370 | } else { |
| 1371 | card->info.blkt.time_total = 0; |
| 1372 | card->info.blkt.inter_packet = 0; |
| 1373 | card->info.blkt.inter_packet_jumbo = 0; |
| 1374 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1375 | } |
| 1376 | |
| 1377 | static void qeth_init_tokens(struct qeth_card *card) |
| 1378 | { |
| 1379 | card->token.issuer_rm_w = 0x00010103UL; |
| 1380 | card->token.cm_filter_w = 0x00010108UL; |
| 1381 | card->token.cm_connection_w = 0x0001010aUL; |
| 1382 | card->token.ulp_filter_w = 0x0001010bUL; |
| 1383 | card->token.ulp_connection_w = 0x0001010dUL; |
| 1384 | } |
| 1385 | |
| 1386 | static void qeth_init_func_level(struct qeth_card *card) |
| 1387 | { |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1388 | switch (card->info.type) { |
| 1389 | case QETH_CARD_TYPE_IQD: |
Klaus-Dieter Wacker | 6298263 | 2010-07-22 23:15:03 +0000 | [diff] [blame] | 1390 | card->info.func_level = QETH_IDX_FUNC_LEVEL_IQD; |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1391 | break; |
| 1392 | case QETH_CARD_TYPE_OSD: |
Ursula Braun | 0132951 | 2010-06-21 22:57:11 +0000 | [diff] [blame] | 1393 | case QETH_CARD_TYPE_OSN: |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1394 | card->info.func_level = QETH_IDX_FUNC_LEVEL_OSD; |
| 1395 | break; |
| 1396 | default: |
| 1397 | break; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1398 | } |
| 1399 | } |
| 1400 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1401 | static int qeth_idx_activate_get_answer(struct qeth_channel *channel, |
| 1402 | void (*idx_reply_cb)(struct qeth_channel *, |
| 1403 | struct qeth_cmd_buffer *)) |
| 1404 | { |
| 1405 | struct qeth_cmd_buffer *iob; |
| 1406 | unsigned long flags; |
| 1407 | int rc; |
| 1408 | struct qeth_card *card; |
| 1409 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1410 | QETH_DBF_TEXT(SETUP, 2, "idxanswr"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1411 | card = CARD_FROM_CDEV(channel->ccwdev); |
| 1412 | iob = qeth_get_buffer(channel); |
| 1413 | iob->callback = idx_reply_cb; |
| 1414 | memcpy(&channel->ccw, READ_CCW, sizeof(struct ccw1)); |
| 1415 | channel->ccw.count = QETH_BUFSIZE; |
| 1416 | channel->ccw.cda = (__u32) __pa(iob->data); |
| 1417 | |
| 1418 | wait_event(card->wait_q, |
| 1419 | atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1420 | QETH_DBF_TEXT(SETUP, 6, "noirqpnd"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1421 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
| 1422 | rc = ccw_device_start(channel->ccwdev, |
| 1423 | &channel->ccw, (addr_t) iob, 0, 0); |
| 1424 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); |
| 1425 | |
| 1426 | if (rc) { |
Frank Blaschka | 14cc21b | 2008-06-06 12:37:46 +0200 | [diff] [blame] | 1427 | QETH_DBF_MESSAGE(2, "Error2 in activating channel rc=%d\n", rc); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1428 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1429 | atomic_set(&channel->irq_pending, 0); |
| 1430 | wake_up(&card->wait_q); |
| 1431 | return rc; |
| 1432 | } |
| 1433 | rc = wait_event_interruptible_timeout(card->wait_q, |
| 1434 | channel->state == CH_STATE_UP, QETH_TIMEOUT); |
| 1435 | if (rc == -ERESTARTSYS) |
| 1436 | return rc; |
| 1437 | if (channel->state != CH_STATE_UP) { |
| 1438 | rc = -ETIME; |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1439 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1440 | qeth_clear_cmd_buffers(channel); |
| 1441 | } else |
| 1442 | rc = 0; |
| 1443 | return rc; |
| 1444 | } |
| 1445 | |
| 1446 | static int qeth_idx_activate_channel(struct qeth_channel *channel, |
| 1447 | void (*idx_reply_cb)(struct qeth_channel *, |
| 1448 | struct qeth_cmd_buffer *)) |
| 1449 | { |
| 1450 | struct qeth_card *card; |
| 1451 | struct qeth_cmd_buffer *iob; |
| 1452 | unsigned long flags; |
| 1453 | __u16 temp; |
| 1454 | __u8 tmp; |
| 1455 | int rc; |
Cornelia Huck | f06f6f3 | 2008-06-06 12:37:45 +0200 | [diff] [blame] | 1456 | struct ccw_dev_id temp_devid; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1457 | |
| 1458 | card = CARD_FROM_CDEV(channel->ccwdev); |
| 1459 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1460 | QETH_DBF_TEXT(SETUP, 2, "idxactch"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1461 | |
| 1462 | iob = qeth_get_buffer(channel); |
| 1463 | iob->callback = idx_reply_cb; |
| 1464 | memcpy(&channel->ccw, WRITE_CCW, sizeof(struct ccw1)); |
| 1465 | channel->ccw.count = IDX_ACTIVATE_SIZE; |
| 1466 | channel->ccw.cda = (__u32) __pa(iob->data); |
| 1467 | if (channel == &card->write) { |
| 1468 | memcpy(iob->data, IDX_ACTIVATE_WRITE, IDX_ACTIVATE_SIZE); |
| 1469 | memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), |
| 1470 | &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); |
| 1471 | card->seqno.trans_hdr++; |
| 1472 | } else { |
| 1473 | memcpy(iob->data, IDX_ACTIVATE_READ, IDX_ACTIVATE_SIZE); |
| 1474 | memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), |
| 1475 | &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); |
| 1476 | } |
| 1477 | tmp = ((__u8)card->info.portno) | 0x80; |
| 1478 | memcpy(QETH_IDX_ACT_PNO(iob->data), &tmp, 1); |
| 1479 | memcpy(QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data), |
| 1480 | &card->token.issuer_rm_w, QETH_MPC_TOKEN_LENGTH); |
| 1481 | memcpy(QETH_IDX_ACT_FUNC_LEVEL(iob->data), |
| 1482 | &card->info.func_level, sizeof(__u16)); |
Cornelia Huck | f06f6f3 | 2008-06-06 12:37:45 +0200 | [diff] [blame] | 1483 | ccw_device_get_id(CARD_DDEV(card), &temp_devid); |
| 1484 | 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] | 1485 | temp = (card->info.cula << 8) + card->info.unit_addr2; |
| 1486 | memcpy(QETH_IDX_ACT_QDIO_DEV_REALADDR(iob->data), &temp, 2); |
| 1487 | |
| 1488 | wait_event(card->wait_q, |
| 1489 | atomic_cmpxchg(&channel->irq_pending, 0, 1) == 0); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1490 | QETH_DBF_TEXT(SETUP, 6, "noirqpnd"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1491 | spin_lock_irqsave(get_ccwdev_lock(channel->ccwdev), flags); |
| 1492 | rc = ccw_device_start(channel->ccwdev, |
| 1493 | &channel->ccw, (addr_t) iob, 0, 0); |
| 1494 | spin_unlock_irqrestore(get_ccwdev_lock(channel->ccwdev), flags); |
| 1495 | |
| 1496 | if (rc) { |
Frank Blaschka | 14cc21b | 2008-06-06 12:37:46 +0200 | [diff] [blame] | 1497 | QETH_DBF_MESSAGE(2, "Error1 in activating channel. rc=%d\n", |
| 1498 | rc); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1499 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1500 | atomic_set(&channel->irq_pending, 0); |
| 1501 | wake_up(&card->wait_q); |
| 1502 | return rc; |
| 1503 | } |
| 1504 | rc = wait_event_interruptible_timeout(card->wait_q, |
| 1505 | channel->state == CH_STATE_ACTIVATING, QETH_TIMEOUT); |
| 1506 | if (rc == -ERESTARTSYS) |
| 1507 | return rc; |
| 1508 | if (channel->state != CH_STATE_ACTIVATING) { |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 1509 | dev_warn(&channel->ccwdev->dev, "The qeth device driver" |
| 1510 | " failed to recover an error on the device\n"); |
| 1511 | QETH_DBF_MESSAGE(2, "%s IDX activate timed out\n", |
| 1512 | dev_name(&channel->ccwdev->dev)); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1513 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", -ETIME); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1514 | qeth_clear_cmd_buffers(channel); |
| 1515 | return -ETIME; |
| 1516 | } |
| 1517 | return qeth_idx_activate_get_answer(channel, idx_reply_cb); |
| 1518 | } |
| 1519 | |
| 1520 | static int qeth_peer_func_level(int level) |
| 1521 | { |
| 1522 | if ((level & 0xff) == 8) |
| 1523 | return (level & 0xff) + 0x400; |
| 1524 | if (((level >> 8) & 3) == 1) |
| 1525 | return (level & 0xff) + 0x200; |
| 1526 | return level; |
| 1527 | } |
| 1528 | |
| 1529 | static void qeth_idx_write_cb(struct qeth_channel *channel, |
| 1530 | struct qeth_cmd_buffer *iob) |
| 1531 | { |
| 1532 | struct qeth_card *card; |
| 1533 | __u16 temp; |
| 1534 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1535 | QETH_DBF_TEXT(SETUP , 2, "idxwrcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1536 | |
| 1537 | if (channel->state == CH_STATE_DOWN) { |
| 1538 | channel->state = CH_STATE_ACTIVATING; |
| 1539 | goto out; |
| 1540 | } |
| 1541 | card = CARD_FROM_CDEV(channel->ccwdev); |
| 1542 | |
| 1543 | if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1544 | 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] | 1545 | dev_err(&card->write.ccwdev->dev, |
| 1546 | "The adapter is used exclusively by another " |
| 1547 | "host\n"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1548 | else |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 1549 | QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel:" |
| 1550 | " negative reply\n", |
| 1551 | dev_name(&card->write.ccwdev->dev)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1552 | goto out; |
| 1553 | } |
| 1554 | memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); |
| 1555 | if ((temp & ~0x0100) != qeth_peer_func_level(card->info.func_level)) { |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 1556 | QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on write channel: " |
| 1557 | "function level mismatch (sent: 0x%x, received: " |
| 1558 | "0x%x)\n", dev_name(&card->write.ccwdev->dev), |
| 1559 | card->info.func_level, temp); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1560 | goto out; |
| 1561 | } |
| 1562 | channel->state = CH_STATE_UP; |
| 1563 | out: |
| 1564 | qeth_release_buffer(channel, iob); |
| 1565 | } |
| 1566 | |
| 1567 | static void qeth_idx_read_cb(struct qeth_channel *channel, |
| 1568 | struct qeth_cmd_buffer *iob) |
| 1569 | { |
| 1570 | struct qeth_card *card; |
| 1571 | __u16 temp; |
| 1572 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1573 | QETH_DBF_TEXT(SETUP , 2, "idxrdcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1574 | if (channel->state == CH_STATE_DOWN) { |
| 1575 | channel->state = CH_STATE_ACTIVATING; |
| 1576 | goto out; |
| 1577 | } |
| 1578 | |
| 1579 | card = CARD_FROM_CDEV(channel->ccwdev); |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1580 | if (qeth_check_idx_response(card, iob->data)) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1581 | goto out; |
| 1582 | |
| 1583 | if (!(QETH_IS_IDX_ACT_POS_REPLY(iob->data))) { |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1584 | switch (QETH_IDX_ACT_CAUSE_CODE(iob->data)) { |
| 1585 | case QETH_IDX_ACT_ERR_EXCL: |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 1586 | dev_err(&card->write.ccwdev->dev, |
| 1587 | "The adapter is used exclusively by another " |
| 1588 | "host\n"); |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1589 | break; |
| 1590 | case QETH_IDX_ACT_ERR_AUTH: |
Ursula Braun | 01fc3e8 | 2010-06-21 22:57:12 +0000 | [diff] [blame] | 1591 | case QETH_IDX_ACT_ERR_AUTH_USER: |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1592 | dev_err(&card->read.ccwdev->dev, |
| 1593 | "Setting the device online failed because of " |
Ursula Braun | 01fc3e8 | 2010-06-21 22:57:12 +0000 | [diff] [blame] | 1594 | "insufficient authorization\n"); |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1595 | break; |
| 1596 | default: |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 1597 | QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel:" |
| 1598 | " negative reply\n", |
| 1599 | dev_name(&card->read.ccwdev->dev)); |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1600 | } |
Ursula Braun | 01fc3e8 | 2010-06-21 22:57:12 +0000 | [diff] [blame] | 1601 | QETH_CARD_TEXT_(card, 2, "idxread%c", |
| 1602 | QETH_IDX_ACT_CAUSE_CODE(iob->data)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1603 | goto out; |
| 1604 | } |
| 1605 | |
| 1606 | /** |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1607 | * * temporary fix for microcode bug |
| 1608 | * * to revert it,replace OR by AND |
| 1609 | * */ |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1610 | if ((!QETH_IDX_NO_PORTNAME_REQUIRED(iob->data)) || |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1611 | (card->info.type == QETH_CARD_TYPE_OSD)) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1612 | card->info.portname_required = 1; |
| 1613 | |
| 1614 | memcpy(&temp, QETH_IDX_ACT_FUNC_LEVEL(iob->data), 2); |
| 1615 | if (temp != qeth_peer_func_level(card->info.func_level)) { |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 1616 | QETH_DBF_MESSAGE(2, "%s IDX_ACTIVATE on read channel: function " |
| 1617 | "level mismatch (sent: 0x%x, received: 0x%x)\n", |
| 1618 | dev_name(&card->read.ccwdev->dev), |
| 1619 | card->info.func_level, temp); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1620 | goto out; |
| 1621 | } |
| 1622 | memcpy(&card->token.issuer_rm_r, |
| 1623 | QETH_IDX_ACT_ISSUER_RM_TOKEN(iob->data), |
| 1624 | QETH_MPC_TOKEN_LENGTH); |
| 1625 | memcpy(&card->info.mcl_level[0], |
| 1626 | QETH_IDX_REPLY_LEVEL(iob->data), QETH_MCL_LENGTH); |
| 1627 | channel->state = CH_STATE_UP; |
| 1628 | out: |
| 1629 | qeth_release_buffer(channel, iob); |
| 1630 | } |
| 1631 | |
| 1632 | void qeth_prepare_control_data(struct qeth_card *card, int len, |
| 1633 | struct qeth_cmd_buffer *iob) |
| 1634 | { |
| 1635 | qeth_setup_ccw(&card->write, iob->data, len); |
| 1636 | iob->callback = qeth_release_buffer; |
| 1637 | |
| 1638 | memcpy(QETH_TRANSPORT_HEADER_SEQ_NO(iob->data), |
| 1639 | &card->seqno.trans_hdr, QETH_SEQ_NO_LENGTH); |
| 1640 | card->seqno.trans_hdr++; |
| 1641 | memcpy(QETH_PDU_HEADER_SEQ_NO(iob->data), |
| 1642 | &card->seqno.pdu_hdr, QETH_SEQ_NO_LENGTH); |
| 1643 | card->seqno.pdu_hdr++; |
| 1644 | memcpy(QETH_PDU_HEADER_ACK_SEQ_NO(iob->data), |
| 1645 | &card->seqno.pdu_hdr_ack, QETH_SEQ_NO_LENGTH); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1646 | QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1647 | } |
| 1648 | EXPORT_SYMBOL_GPL(qeth_prepare_control_data); |
| 1649 | |
| 1650 | int qeth_send_control_data(struct qeth_card *card, int len, |
| 1651 | struct qeth_cmd_buffer *iob, |
| 1652 | int (*reply_cb)(struct qeth_card *, struct qeth_reply *, |
| 1653 | unsigned long), |
| 1654 | void *reply_param) |
| 1655 | { |
| 1656 | int rc; |
| 1657 | unsigned long flags; |
| 1658 | struct qeth_reply *reply = NULL; |
Heiko Carstens | 7834cd5 | 2009-03-24 20:57:19 +0000 | [diff] [blame] | 1659 | unsigned long timeout, event_timeout; |
Frank Blaschka | 5b54e16 | 2009-01-04 17:35:44 -0800 | [diff] [blame] | 1660 | struct qeth_ipa_cmd *cmd; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1661 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1662 | QETH_CARD_TEXT(card, 2, "sendctl"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1663 | |
Ursula Braun | 908abbb | 2010-07-22 23:15:06 +0000 | [diff] [blame] | 1664 | if (card->read_or_write_problem) { |
| 1665 | qeth_release_buffer(iob->channel, iob); |
| 1666 | return -EIO; |
| 1667 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1668 | reply = qeth_alloc_reply(card); |
| 1669 | if (!reply) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1670 | return -ENOMEM; |
| 1671 | } |
| 1672 | reply->callback = reply_cb; |
| 1673 | reply->param = reply_param; |
| 1674 | if (card->state == CARD_STATE_DOWN) |
| 1675 | reply->seqno = QETH_IDX_COMMAND_SEQNO; |
| 1676 | else |
| 1677 | reply->seqno = card->seqno.ipa++; |
| 1678 | init_waitqueue_head(&reply->wait_q); |
| 1679 | spin_lock_irqsave(&card->lock, flags); |
| 1680 | list_add_tail(&reply->list, &card->cmd_waiter_list); |
| 1681 | spin_unlock_irqrestore(&card->lock, flags); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1682 | QETH_DBF_HEX(CTRL, 2, iob->data, QETH_DBF_CTRL_LEN); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1683 | |
| 1684 | while (atomic_cmpxchg(&card->write.irq_pending, 0, 1)) ; |
| 1685 | qeth_prepare_control_data(card, len, iob); |
| 1686 | |
| 1687 | if (IS_IPA(iob->data)) |
Heiko Carstens | 7834cd5 | 2009-03-24 20:57:19 +0000 | [diff] [blame] | 1688 | event_timeout = QETH_IPA_TIMEOUT; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1689 | else |
Heiko Carstens | 7834cd5 | 2009-03-24 20:57:19 +0000 | [diff] [blame] | 1690 | event_timeout = QETH_TIMEOUT; |
| 1691 | timeout = jiffies + event_timeout; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1692 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1693 | QETH_CARD_TEXT(card, 6, "noirqpnd"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1694 | spin_lock_irqsave(get_ccwdev_lock(card->write.ccwdev), flags); |
| 1695 | rc = ccw_device_start(card->write.ccwdev, &card->write.ccw, |
| 1696 | (addr_t) iob, 0, 0); |
| 1697 | spin_unlock_irqrestore(get_ccwdev_lock(card->write.ccwdev), flags); |
| 1698 | if (rc) { |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 1699 | QETH_DBF_MESSAGE(2, "%s qeth_send_control_data: " |
| 1700 | "ccw_device_start rc = %i\n", |
| 1701 | dev_name(&card->write.ccwdev->dev), rc); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 1702 | QETH_CARD_TEXT_(card, 2, " err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1703 | spin_lock_irqsave(&card->lock, flags); |
| 1704 | list_del_init(&reply->list); |
| 1705 | qeth_put_reply(reply); |
| 1706 | spin_unlock_irqrestore(&card->lock, flags); |
| 1707 | qeth_release_buffer(iob->channel, iob); |
| 1708 | atomic_set(&card->write.irq_pending, 0); |
| 1709 | wake_up(&card->wait_q); |
| 1710 | return rc; |
| 1711 | } |
Frank Blaschka | 5b54e16 | 2009-01-04 17:35:44 -0800 | [diff] [blame] | 1712 | |
| 1713 | /* we have only one long running ipassist, since we can ensure |
| 1714 | process context of this command we can sleep */ |
| 1715 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| 1716 | if ((cmd->hdr.command == IPA_CMD_SETIP) && |
| 1717 | (cmd->hdr.prot_version == QETH_PROT_IPV4)) { |
| 1718 | if (!wait_event_timeout(reply->wait_q, |
Heiko Carstens | 7834cd5 | 2009-03-24 20:57:19 +0000 | [diff] [blame] | 1719 | atomic_read(&reply->received), event_timeout)) |
Frank Blaschka | 5b54e16 | 2009-01-04 17:35:44 -0800 | [diff] [blame] | 1720 | goto time_err; |
| 1721 | } else { |
| 1722 | while (!atomic_read(&reply->received)) { |
| 1723 | if (time_after(jiffies, timeout)) |
| 1724 | goto time_err; |
| 1725 | cpu_relax(); |
| 1726 | }; |
| 1727 | } |
| 1728 | |
| 1729 | rc = reply->rc; |
| 1730 | qeth_put_reply(reply); |
| 1731 | return rc; |
| 1732 | |
| 1733 | time_err: |
| 1734 | spin_lock_irqsave(&reply->card->lock, flags); |
| 1735 | list_del_init(&reply->list); |
| 1736 | spin_unlock_irqrestore(&reply->card->lock, flags); |
| 1737 | reply->rc = -ETIME; |
| 1738 | atomic_inc(&reply->received); |
Ursula Braun | 908abbb | 2010-07-22 23:15:06 +0000 | [diff] [blame] | 1739 | atomic_set(&card->write.irq_pending, 0); |
| 1740 | qeth_release_buffer(iob->channel, iob); |
| 1741 | card->write.buf_no = (card->write.buf_no + 1) % QETH_CMD_BUFFER_NO; |
Frank Blaschka | 5b54e16 | 2009-01-04 17:35:44 -0800 | [diff] [blame] | 1742 | wake_up(&reply->wait_q); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1743 | rc = reply->rc; |
| 1744 | qeth_put_reply(reply); |
| 1745 | return rc; |
| 1746 | } |
| 1747 | EXPORT_SYMBOL_GPL(qeth_send_control_data); |
| 1748 | |
| 1749 | static int qeth_cm_enable_cb(struct qeth_card *card, struct qeth_reply *reply, |
| 1750 | unsigned long data) |
| 1751 | { |
| 1752 | struct qeth_cmd_buffer *iob; |
| 1753 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1754 | QETH_DBF_TEXT(SETUP, 2, "cmenblcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1755 | |
| 1756 | iob = (struct qeth_cmd_buffer *) data; |
| 1757 | memcpy(&card->token.cm_filter_r, |
| 1758 | QETH_CM_ENABLE_RESP_FILTER_TOKEN(iob->data), |
| 1759 | QETH_MPC_TOKEN_LENGTH); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1760 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1761 | return 0; |
| 1762 | } |
| 1763 | |
| 1764 | static int qeth_cm_enable(struct qeth_card *card) |
| 1765 | { |
| 1766 | int rc; |
| 1767 | struct qeth_cmd_buffer *iob; |
| 1768 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1769 | QETH_DBF_TEXT(SETUP, 2, "cmenable"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1770 | |
| 1771 | iob = qeth_wait_for_buffer(&card->write); |
| 1772 | memcpy(iob->data, CM_ENABLE, CM_ENABLE_SIZE); |
| 1773 | memcpy(QETH_CM_ENABLE_ISSUER_RM_TOKEN(iob->data), |
| 1774 | &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH); |
| 1775 | memcpy(QETH_CM_ENABLE_FILTER_TOKEN(iob->data), |
| 1776 | &card->token.cm_filter_w, QETH_MPC_TOKEN_LENGTH); |
| 1777 | |
| 1778 | rc = qeth_send_control_data(card, CM_ENABLE_SIZE, iob, |
| 1779 | qeth_cm_enable_cb, NULL); |
| 1780 | return rc; |
| 1781 | } |
| 1782 | |
| 1783 | static int qeth_cm_setup_cb(struct qeth_card *card, struct qeth_reply *reply, |
| 1784 | unsigned long data) |
| 1785 | { |
| 1786 | |
| 1787 | struct qeth_cmd_buffer *iob; |
| 1788 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1789 | QETH_DBF_TEXT(SETUP, 2, "cmsetpcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1790 | |
| 1791 | iob = (struct qeth_cmd_buffer *) data; |
| 1792 | memcpy(&card->token.cm_connection_r, |
| 1793 | QETH_CM_SETUP_RESP_DEST_ADDR(iob->data), |
| 1794 | QETH_MPC_TOKEN_LENGTH); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1795 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1796 | return 0; |
| 1797 | } |
| 1798 | |
| 1799 | static int qeth_cm_setup(struct qeth_card *card) |
| 1800 | { |
| 1801 | int rc; |
| 1802 | struct qeth_cmd_buffer *iob; |
| 1803 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1804 | QETH_DBF_TEXT(SETUP, 2, "cmsetup"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1805 | |
| 1806 | iob = qeth_wait_for_buffer(&card->write); |
| 1807 | memcpy(iob->data, CM_SETUP, CM_SETUP_SIZE); |
| 1808 | memcpy(QETH_CM_SETUP_DEST_ADDR(iob->data), |
| 1809 | &card->token.issuer_rm_r, QETH_MPC_TOKEN_LENGTH); |
| 1810 | memcpy(QETH_CM_SETUP_CONNECTION_TOKEN(iob->data), |
| 1811 | &card->token.cm_connection_w, QETH_MPC_TOKEN_LENGTH); |
| 1812 | memcpy(QETH_CM_SETUP_FILTER_TOKEN(iob->data), |
| 1813 | &card->token.cm_filter_r, QETH_MPC_TOKEN_LENGTH); |
| 1814 | rc = qeth_send_control_data(card, CM_SETUP_SIZE, iob, |
| 1815 | qeth_cm_setup_cb, NULL); |
| 1816 | return rc; |
| 1817 | |
| 1818 | } |
| 1819 | |
| 1820 | static inline int qeth_get_initial_mtu_for_card(struct qeth_card *card) |
| 1821 | { |
| 1822 | switch (card->info.type) { |
| 1823 | case QETH_CARD_TYPE_UNKNOWN: |
| 1824 | return 1500; |
| 1825 | case QETH_CARD_TYPE_IQD: |
| 1826 | return card->info.max_mtu; |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1827 | case QETH_CARD_TYPE_OSD: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1828 | switch (card->info.link_type) { |
| 1829 | case QETH_LINK_TYPE_HSTR: |
| 1830 | case QETH_LINK_TYPE_LANE_TR: |
| 1831 | return 2000; |
| 1832 | default: |
| 1833 | return 1492; |
| 1834 | } |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1835 | case QETH_CARD_TYPE_OSM: |
| 1836 | case QETH_CARD_TYPE_OSX: |
| 1837 | return 1492; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1838 | default: |
| 1839 | return 1500; |
| 1840 | } |
| 1841 | } |
| 1842 | |
| 1843 | static inline int qeth_get_max_mtu_for_card(int cardtype) |
| 1844 | { |
| 1845 | switch (cardtype) { |
| 1846 | |
| 1847 | case QETH_CARD_TYPE_UNKNOWN: |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1848 | case QETH_CARD_TYPE_OSD: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1849 | case QETH_CARD_TYPE_OSN: |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1850 | case QETH_CARD_TYPE_OSM: |
| 1851 | case QETH_CARD_TYPE_OSX: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1852 | return 61440; |
| 1853 | case QETH_CARD_TYPE_IQD: |
| 1854 | return 57344; |
| 1855 | default: |
| 1856 | return 1500; |
| 1857 | } |
| 1858 | } |
| 1859 | |
| 1860 | static inline int qeth_get_mtu_out_of_mpc(int cardtype) |
| 1861 | { |
| 1862 | switch (cardtype) { |
| 1863 | case QETH_CARD_TYPE_IQD: |
| 1864 | return 1; |
| 1865 | default: |
| 1866 | return 0; |
| 1867 | } |
| 1868 | } |
| 1869 | |
| 1870 | static inline int qeth_get_mtu_outof_framesize(int framesize) |
| 1871 | { |
| 1872 | switch (framesize) { |
| 1873 | case 0x4000: |
| 1874 | return 8192; |
| 1875 | case 0x6000: |
| 1876 | return 16384; |
| 1877 | case 0xa000: |
| 1878 | return 32768; |
| 1879 | case 0xffff: |
| 1880 | return 57344; |
| 1881 | default: |
| 1882 | return 0; |
| 1883 | } |
| 1884 | } |
| 1885 | |
| 1886 | static inline int qeth_mtu_is_valid(struct qeth_card *card, int mtu) |
| 1887 | { |
| 1888 | switch (card->info.type) { |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 1889 | case QETH_CARD_TYPE_OSD: |
| 1890 | case QETH_CARD_TYPE_OSM: |
| 1891 | case QETH_CARD_TYPE_OSX: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1892 | return ((mtu >= 576) && (mtu <= 61440)); |
| 1893 | case QETH_CARD_TYPE_IQD: |
| 1894 | return ((mtu >= 576) && |
| 1895 | (mtu <= card->info.max_mtu + 4096 - 32)); |
| 1896 | case QETH_CARD_TYPE_OSN: |
| 1897 | case QETH_CARD_TYPE_UNKNOWN: |
| 1898 | default: |
| 1899 | return 1; |
| 1900 | } |
| 1901 | } |
| 1902 | |
| 1903 | static int qeth_ulp_enable_cb(struct qeth_card *card, struct qeth_reply *reply, |
| 1904 | unsigned long data) |
| 1905 | { |
| 1906 | |
| 1907 | __u16 mtu, framesize; |
| 1908 | __u16 len; |
| 1909 | __u8 link_type; |
| 1910 | struct qeth_cmd_buffer *iob; |
| 1911 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1912 | QETH_DBF_TEXT(SETUP, 2, "ulpenacb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1913 | |
| 1914 | iob = (struct qeth_cmd_buffer *) data; |
| 1915 | memcpy(&card->token.ulp_filter_r, |
| 1916 | QETH_ULP_ENABLE_RESP_FILTER_TOKEN(iob->data), |
| 1917 | QETH_MPC_TOKEN_LENGTH); |
| 1918 | if (qeth_get_mtu_out_of_mpc(card->info.type)) { |
| 1919 | memcpy(&framesize, QETH_ULP_ENABLE_RESP_MAX_MTU(iob->data), 2); |
| 1920 | mtu = qeth_get_mtu_outof_framesize(framesize); |
| 1921 | if (!mtu) { |
| 1922 | iob->rc = -EINVAL; |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1923 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1924 | return 0; |
| 1925 | } |
| 1926 | card->info.max_mtu = mtu; |
| 1927 | card->info.initial_mtu = mtu; |
| 1928 | card->qdio.in_buf_size = mtu + 2 * PAGE_SIZE; |
| 1929 | } else { |
| 1930 | card->info.initial_mtu = qeth_get_initial_mtu_for_card(card); |
| 1931 | card->info.max_mtu = qeth_get_max_mtu_for_card(card->info.type); |
| 1932 | card->qdio.in_buf_size = QETH_IN_BUF_SIZE_DEFAULT; |
| 1933 | } |
| 1934 | |
| 1935 | memcpy(&len, QETH_ULP_ENABLE_RESP_DIFINFO_LEN(iob->data), 2); |
| 1936 | if (len >= QETH_MPC_DIFINFO_LEN_INDICATES_LINK_TYPE) { |
| 1937 | memcpy(&link_type, |
| 1938 | QETH_ULP_ENABLE_RESP_LINK_TYPE(iob->data), 1); |
| 1939 | card->info.link_type = link_type; |
| 1940 | } else |
| 1941 | card->info.link_type = 0; |
Ursula Braun | 01fc3e8 | 2010-06-21 22:57:12 +0000 | [diff] [blame] | 1942 | QETH_DBF_TEXT_(SETUP, 2, "link%d", card->info.link_type); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1943 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1944 | return 0; |
| 1945 | } |
| 1946 | |
| 1947 | static int qeth_ulp_enable(struct qeth_card *card) |
| 1948 | { |
| 1949 | int rc; |
| 1950 | char prot_type; |
| 1951 | struct qeth_cmd_buffer *iob; |
| 1952 | |
| 1953 | /*FIXME: trace view callbacks*/ |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1954 | QETH_DBF_TEXT(SETUP, 2, "ulpenabl"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1955 | |
| 1956 | iob = qeth_wait_for_buffer(&card->write); |
| 1957 | memcpy(iob->data, ULP_ENABLE, ULP_ENABLE_SIZE); |
| 1958 | |
| 1959 | *(QETH_ULP_ENABLE_LINKNUM(iob->data)) = |
| 1960 | (__u8) card->info.portno; |
| 1961 | if (card->options.layer2) |
| 1962 | if (card->info.type == QETH_CARD_TYPE_OSN) |
| 1963 | prot_type = QETH_PROT_OSN2; |
| 1964 | else |
| 1965 | prot_type = QETH_PROT_LAYER2; |
| 1966 | else |
| 1967 | prot_type = QETH_PROT_TCPIP; |
| 1968 | |
| 1969 | memcpy(QETH_ULP_ENABLE_PROT_TYPE(iob->data), &prot_type, 1); |
| 1970 | memcpy(QETH_ULP_ENABLE_DEST_ADDR(iob->data), |
| 1971 | &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); |
| 1972 | memcpy(QETH_ULP_ENABLE_FILTER_TOKEN(iob->data), |
| 1973 | &card->token.ulp_filter_w, QETH_MPC_TOKEN_LENGTH); |
| 1974 | memcpy(QETH_ULP_ENABLE_PORTNAME_AND_LL(iob->data), |
| 1975 | card->info.portname, 9); |
| 1976 | rc = qeth_send_control_data(card, ULP_ENABLE_SIZE, iob, |
| 1977 | qeth_ulp_enable_cb, NULL); |
| 1978 | return rc; |
| 1979 | |
| 1980 | } |
| 1981 | |
| 1982 | static int qeth_ulp_setup_cb(struct qeth_card *card, struct qeth_reply *reply, |
| 1983 | unsigned long data) |
| 1984 | { |
| 1985 | struct qeth_cmd_buffer *iob; |
Ursula Braun | 65a1f89 | 2010-05-11 19:34:46 +0000 | [diff] [blame] | 1986 | int rc = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1987 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 1988 | QETH_DBF_TEXT(SETUP, 2, "ulpstpcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 1989 | |
| 1990 | iob = (struct qeth_cmd_buffer *) data; |
| 1991 | memcpy(&card->token.ulp_connection_r, |
| 1992 | QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), |
| 1993 | QETH_MPC_TOKEN_LENGTH); |
Ursula Braun | 65a1f89 | 2010-05-11 19:34:46 +0000 | [diff] [blame] | 1994 | if (!strncmp("00S", QETH_ULP_SETUP_RESP_CONNECTION_TOKEN(iob->data), |
| 1995 | 3)) { |
| 1996 | QETH_DBF_TEXT(SETUP, 2, "olmlimit"); |
| 1997 | dev_err(&card->gdev->dev, "A connection could not be " |
| 1998 | "established because of an OLM limit\n"); |
Ursula Braun | bbb822a | 2010-07-22 23:15:08 +0000 | [diff] [blame] | 1999 | iob->rc = -EMLINK; |
Ursula Braun | 65a1f89 | 2010-05-11 19:34:46 +0000 | [diff] [blame] | 2000 | } |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2001 | QETH_DBF_TEXT_(SETUP, 2, " rc%d", iob->rc); |
Ursula Braun | 65a1f89 | 2010-05-11 19:34:46 +0000 | [diff] [blame] | 2002 | return rc; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2003 | } |
| 2004 | |
| 2005 | static int qeth_ulp_setup(struct qeth_card *card) |
| 2006 | { |
| 2007 | int rc; |
| 2008 | __u16 temp; |
| 2009 | struct qeth_cmd_buffer *iob; |
| 2010 | struct ccw_dev_id dev_id; |
| 2011 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2012 | QETH_DBF_TEXT(SETUP, 2, "ulpsetup"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2013 | |
| 2014 | iob = qeth_wait_for_buffer(&card->write); |
| 2015 | memcpy(iob->data, ULP_SETUP, ULP_SETUP_SIZE); |
| 2016 | |
| 2017 | memcpy(QETH_ULP_SETUP_DEST_ADDR(iob->data), |
| 2018 | &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); |
| 2019 | memcpy(QETH_ULP_SETUP_CONNECTION_TOKEN(iob->data), |
| 2020 | &card->token.ulp_connection_w, QETH_MPC_TOKEN_LENGTH); |
| 2021 | memcpy(QETH_ULP_SETUP_FILTER_TOKEN(iob->data), |
| 2022 | &card->token.ulp_filter_r, QETH_MPC_TOKEN_LENGTH); |
| 2023 | |
| 2024 | ccw_device_get_id(CARD_DDEV(card), &dev_id); |
| 2025 | memcpy(QETH_ULP_SETUP_CUA(iob->data), &dev_id.devno, 2); |
| 2026 | temp = (card->info.cula << 8) + card->info.unit_addr2; |
| 2027 | memcpy(QETH_ULP_SETUP_REAL_DEVADDR(iob->data), &temp, 2); |
| 2028 | rc = qeth_send_control_data(card, ULP_SETUP_SIZE, iob, |
| 2029 | qeth_ulp_setup_cb, NULL); |
| 2030 | return rc; |
| 2031 | } |
| 2032 | |
| 2033 | static int qeth_alloc_qdio_buffers(struct qeth_card *card) |
| 2034 | { |
| 2035 | int i, j; |
| 2036 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2037 | QETH_DBF_TEXT(SETUP, 2, "allcqdbf"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2038 | |
| 2039 | if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_UNINITIALIZED, |
| 2040 | QETH_QDIO_ALLOCATED) != QETH_QDIO_UNINITIALIZED) |
| 2041 | return 0; |
| 2042 | |
| 2043 | card->qdio.in_q = kmalloc(sizeof(struct qeth_qdio_q), |
Ursula Braun | 508b3c4 | 2008-04-01 10:26:54 +0200 | [diff] [blame] | 2044 | GFP_KERNEL); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2045 | if (!card->qdio.in_q) |
| 2046 | goto out_nomem; |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2047 | QETH_DBF_TEXT(SETUP, 2, "inq"); |
| 2048 | QETH_DBF_HEX(SETUP, 2, &card->qdio.in_q, sizeof(void *)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2049 | memset(card->qdio.in_q, 0, sizeof(struct qeth_qdio_q)); |
| 2050 | /* give inbound qeth_qdio_buffers their qdio_buffers */ |
| 2051 | for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) |
| 2052 | card->qdio.in_q->bufs[i].buffer = |
| 2053 | &card->qdio.in_q->qdio_bufs[i]; |
| 2054 | /* inbound buffer pool */ |
| 2055 | if (qeth_alloc_buffer_pool(card)) |
| 2056 | goto out_freeinq; |
| 2057 | /* outbound */ |
| 2058 | card->qdio.out_qs = |
| 2059 | kmalloc(card->qdio.no_out_queues * |
| 2060 | sizeof(struct qeth_qdio_out_q *), GFP_KERNEL); |
| 2061 | if (!card->qdio.out_qs) |
| 2062 | goto out_freepool; |
| 2063 | for (i = 0; i < card->qdio.no_out_queues; ++i) { |
| 2064 | card->qdio.out_qs[i] = kmalloc(sizeof(struct qeth_qdio_out_q), |
Ursula Braun | 508b3c4 | 2008-04-01 10:26:54 +0200 | [diff] [blame] | 2065 | GFP_KERNEL); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2066 | if (!card->qdio.out_qs[i]) |
| 2067 | goto out_freeoutq; |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2068 | QETH_DBF_TEXT_(SETUP, 2, "outq %i", i); |
| 2069 | QETH_DBF_HEX(SETUP, 2, &card->qdio.out_qs[i], sizeof(void *)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2070 | memset(card->qdio.out_qs[i], 0, sizeof(struct qeth_qdio_out_q)); |
| 2071 | card->qdio.out_qs[i]->queue_no = i; |
| 2072 | /* give outbound qeth_qdio_buffers their qdio_buffers */ |
| 2073 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { |
| 2074 | card->qdio.out_qs[i]->bufs[j].buffer = |
| 2075 | &card->qdio.out_qs[i]->qdio_bufs[j]; |
| 2076 | skb_queue_head_init(&card->qdio.out_qs[i]->bufs[j]. |
| 2077 | skb_list); |
| 2078 | lockdep_set_class( |
| 2079 | &card->qdio.out_qs[i]->bufs[j].skb_list.lock, |
| 2080 | &qdio_out_skb_queue_key); |
| 2081 | INIT_LIST_HEAD(&card->qdio.out_qs[i]->bufs[j].ctx_list); |
| 2082 | } |
| 2083 | } |
| 2084 | return 0; |
| 2085 | |
| 2086 | out_freeoutq: |
| 2087 | while (i > 0) |
| 2088 | kfree(card->qdio.out_qs[--i]); |
| 2089 | kfree(card->qdio.out_qs); |
| 2090 | card->qdio.out_qs = NULL; |
| 2091 | out_freepool: |
| 2092 | qeth_free_buffer_pool(card); |
| 2093 | out_freeinq: |
| 2094 | kfree(card->qdio.in_q); |
| 2095 | card->qdio.in_q = NULL; |
| 2096 | out_nomem: |
| 2097 | atomic_set(&card->qdio.state, QETH_QDIO_UNINITIALIZED); |
| 2098 | return -ENOMEM; |
| 2099 | } |
| 2100 | |
| 2101 | static void qeth_create_qib_param_field(struct qeth_card *card, |
| 2102 | char *param_field) |
| 2103 | { |
| 2104 | |
| 2105 | param_field[0] = _ascebc['P']; |
| 2106 | param_field[1] = _ascebc['C']; |
| 2107 | param_field[2] = _ascebc['I']; |
| 2108 | param_field[3] = _ascebc['T']; |
| 2109 | *((unsigned int *) (¶m_field[4])) = QETH_PCI_THRESHOLD_A(card); |
| 2110 | *((unsigned int *) (¶m_field[8])) = QETH_PCI_THRESHOLD_B(card); |
| 2111 | *((unsigned int *) (¶m_field[12])) = QETH_PCI_TIMER_VALUE(card); |
| 2112 | } |
| 2113 | |
| 2114 | static void qeth_create_qib_param_field_blkt(struct qeth_card *card, |
| 2115 | char *param_field) |
| 2116 | { |
| 2117 | param_field[16] = _ascebc['B']; |
| 2118 | param_field[17] = _ascebc['L']; |
| 2119 | param_field[18] = _ascebc['K']; |
| 2120 | param_field[19] = _ascebc['T']; |
| 2121 | *((unsigned int *) (¶m_field[20])) = card->info.blkt.time_total; |
| 2122 | *((unsigned int *) (¶m_field[24])) = card->info.blkt.inter_packet; |
| 2123 | *((unsigned int *) (¶m_field[28])) = |
| 2124 | card->info.blkt.inter_packet_jumbo; |
| 2125 | } |
| 2126 | |
| 2127 | static int qeth_qdio_activate(struct qeth_card *card) |
| 2128 | { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2129 | QETH_DBF_TEXT(SETUP, 3, "qdioact"); |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2130 | return qdio_activate(CARD_DDEV(card)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2131 | } |
| 2132 | |
| 2133 | static int qeth_dm_act(struct qeth_card *card) |
| 2134 | { |
| 2135 | int rc; |
| 2136 | struct qeth_cmd_buffer *iob; |
| 2137 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2138 | QETH_DBF_TEXT(SETUP, 2, "dmact"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2139 | |
| 2140 | iob = qeth_wait_for_buffer(&card->write); |
| 2141 | memcpy(iob->data, DM_ACT, DM_ACT_SIZE); |
| 2142 | |
| 2143 | memcpy(QETH_DM_ACT_DEST_ADDR(iob->data), |
| 2144 | &card->token.cm_connection_r, QETH_MPC_TOKEN_LENGTH); |
| 2145 | memcpy(QETH_DM_ACT_CONNECTION_TOKEN(iob->data), |
| 2146 | &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); |
| 2147 | rc = qeth_send_control_data(card, DM_ACT_SIZE, iob, NULL, NULL); |
| 2148 | return rc; |
| 2149 | } |
| 2150 | |
| 2151 | static int qeth_mpc_initialize(struct qeth_card *card) |
| 2152 | { |
| 2153 | int rc; |
| 2154 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2155 | QETH_DBF_TEXT(SETUP, 2, "mpcinit"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2156 | |
| 2157 | rc = qeth_issue_next_read(card); |
| 2158 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2159 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2160 | return rc; |
| 2161 | } |
| 2162 | rc = qeth_cm_enable(card); |
| 2163 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2164 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2165 | goto out_qdio; |
| 2166 | } |
| 2167 | rc = qeth_cm_setup(card); |
| 2168 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2169 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2170 | goto out_qdio; |
| 2171 | } |
| 2172 | rc = qeth_ulp_enable(card); |
| 2173 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2174 | QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2175 | goto out_qdio; |
| 2176 | } |
| 2177 | rc = qeth_ulp_setup(card); |
| 2178 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2179 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2180 | goto out_qdio; |
| 2181 | } |
| 2182 | rc = qeth_alloc_qdio_buffers(card); |
| 2183 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2184 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2185 | goto out_qdio; |
| 2186 | } |
| 2187 | rc = qeth_qdio_establish(card); |
| 2188 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2189 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2190 | qeth_free_qdio_buffers(card); |
| 2191 | goto out_qdio; |
| 2192 | } |
| 2193 | rc = qeth_qdio_activate(card); |
| 2194 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2195 | QETH_DBF_TEXT_(SETUP, 2, "7err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2196 | goto out_qdio; |
| 2197 | } |
| 2198 | rc = qeth_dm_act(card); |
| 2199 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2200 | QETH_DBF_TEXT_(SETUP, 2, "8err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2201 | goto out_qdio; |
| 2202 | } |
| 2203 | |
| 2204 | return 0; |
| 2205 | out_qdio: |
| 2206 | qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD); |
| 2207 | return rc; |
| 2208 | } |
| 2209 | |
| 2210 | static void qeth_print_status_with_portname(struct qeth_card *card) |
| 2211 | { |
| 2212 | char dbf_text[15]; |
| 2213 | int i; |
| 2214 | |
| 2215 | sprintf(dbf_text, "%s", card->info.portname + 1); |
| 2216 | for (i = 0; i < 8; i++) |
| 2217 | dbf_text[i] = |
| 2218 | (char) _ebcasc[(__u8) dbf_text[i]]; |
| 2219 | dbf_text[8] = 0; |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 2220 | 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] | 2221 | "with link type %s (portname: %s)\n", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2222 | qeth_get_cardname(card), |
| 2223 | (card->info.mcl_level[0]) ? " (level: " : "", |
| 2224 | (card->info.mcl_level[0]) ? card->info.mcl_level : "", |
| 2225 | (card->info.mcl_level[0]) ? ")" : "", |
| 2226 | qeth_get_cardname_short(card), |
| 2227 | dbf_text); |
| 2228 | |
| 2229 | } |
| 2230 | |
| 2231 | static void qeth_print_status_no_portname(struct qeth_card *card) |
| 2232 | { |
| 2233 | if (card->info.portname[0]) |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 2234 | dev_info(&card->gdev->dev, "Device is a%s " |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2235 | "card%s%s%s\nwith link type %s " |
| 2236 | "(no portname needed by interface).\n", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2237 | qeth_get_cardname(card), |
| 2238 | (card->info.mcl_level[0]) ? " (level: " : "", |
| 2239 | (card->info.mcl_level[0]) ? card->info.mcl_level : "", |
| 2240 | (card->info.mcl_level[0]) ? ")" : "", |
| 2241 | qeth_get_cardname_short(card)); |
| 2242 | else |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 2243 | dev_info(&card->gdev->dev, "Device is a%s " |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2244 | "card%s%s%s\nwith link type %s.\n", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2245 | qeth_get_cardname(card), |
| 2246 | (card->info.mcl_level[0]) ? " (level: " : "", |
| 2247 | (card->info.mcl_level[0]) ? card->info.mcl_level : "", |
| 2248 | (card->info.mcl_level[0]) ? ")" : "", |
| 2249 | qeth_get_cardname_short(card)); |
| 2250 | } |
| 2251 | |
| 2252 | void qeth_print_status_message(struct qeth_card *card) |
| 2253 | { |
| 2254 | switch (card->info.type) { |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 2255 | case QETH_CARD_TYPE_OSD: |
| 2256 | case QETH_CARD_TYPE_OSM: |
| 2257 | case QETH_CARD_TYPE_OSX: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2258 | /* VM will use a non-zero first character |
| 2259 | * to indicate a HiperSockets like reporting |
| 2260 | * of the level OSA sets the first character to zero |
| 2261 | * */ |
| 2262 | if (!card->info.mcl_level[0]) { |
| 2263 | sprintf(card->info.mcl_level, "%02x%02x", |
| 2264 | card->info.mcl_level[2], |
| 2265 | card->info.mcl_level[3]); |
| 2266 | |
| 2267 | card->info.mcl_level[QETH_MCL_LENGTH] = 0; |
| 2268 | break; |
| 2269 | } |
| 2270 | /* fallthrough */ |
| 2271 | case QETH_CARD_TYPE_IQD: |
Klaus-Dieter Wacker | 906f1f0 | 2009-01-04 17:34:10 -0800 | [diff] [blame] | 2272 | if ((card->info.guestlan) || |
| 2273 | (card->info.mcl_level[0] & 0x80)) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2274 | card->info.mcl_level[0] = (char) _ebcasc[(__u8) |
| 2275 | card->info.mcl_level[0]]; |
| 2276 | card->info.mcl_level[1] = (char) _ebcasc[(__u8) |
| 2277 | card->info.mcl_level[1]]; |
| 2278 | card->info.mcl_level[2] = (char) _ebcasc[(__u8) |
| 2279 | card->info.mcl_level[2]]; |
| 2280 | card->info.mcl_level[3] = (char) _ebcasc[(__u8) |
| 2281 | card->info.mcl_level[3]]; |
| 2282 | card->info.mcl_level[QETH_MCL_LENGTH] = 0; |
| 2283 | } |
| 2284 | break; |
| 2285 | default: |
| 2286 | memset(&card->info.mcl_level[0], 0, QETH_MCL_LENGTH + 1); |
| 2287 | } |
| 2288 | if (card->info.portname_required) |
| 2289 | qeth_print_status_with_portname(card); |
| 2290 | else |
| 2291 | qeth_print_status_no_portname(card); |
| 2292 | } |
| 2293 | EXPORT_SYMBOL_GPL(qeth_print_status_message); |
| 2294 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2295 | static void qeth_initialize_working_pool_list(struct qeth_card *card) |
| 2296 | { |
| 2297 | struct qeth_buffer_pool_entry *entry; |
| 2298 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 2299 | QETH_CARD_TEXT(card, 5, "inwrklst"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2300 | |
| 2301 | list_for_each_entry(entry, |
| 2302 | &card->qdio.init_pool.entry_list, init_list) { |
| 2303 | qeth_put_buffer_pool_entry(card, entry); |
| 2304 | } |
| 2305 | } |
| 2306 | |
| 2307 | static inline struct qeth_buffer_pool_entry *qeth_find_free_buffer_pool_entry( |
| 2308 | struct qeth_card *card) |
| 2309 | { |
| 2310 | struct list_head *plh; |
| 2311 | struct qeth_buffer_pool_entry *entry; |
| 2312 | int i, free; |
| 2313 | struct page *page; |
| 2314 | |
| 2315 | if (list_empty(&card->qdio.in_buf_pool.entry_list)) |
| 2316 | return NULL; |
| 2317 | |
| 2318 | list_for_each(plh, &card->qdio.in_buf_pool.entry_list) { |
| 2319 | entry = list_entry(plh, struct qeth_buffer_pool_entry, list); |
| 2320 | free = 1; |
| 2321 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { |
| 2322 | if (page_count(virt_to_page(entry->elements[i])) > 1) { |
| 2323 | free = 0; |
| 2324 | break; |
| 2325 | } |
| 2326 | } |
| 2327 | if (free) { |
| 2328 | list_del_init(&entry->list); |
| 2329 | return entry; |
| 2330 | } |
| 2331 | } |
| 2332 | |
| 2333 | /* no free buffer in pool so take first one and swap pages */ |
| 2334 | entry = list_entry(card->qdio.in_buf_pool.entry_list.next, |
| 2335 | struct qeth_buffer_pool_entry, list); |
| 2336 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { |
| 2337 | if (page_count(virt_to_page(entry->elements[i])) > 1) { |
Ursula Braun | 508b3c4 | 2008-04-01 10:26:54 +0200 | [diff] [blame] | 2338 | page = alloc_page(GFP_ATOMIC); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2339 | if (!page) { |
| 2340 | return NULL; |
| 2341 | } else { |
| 2342 | free_page((unsigned long)entry->elements[i]); |
| 2343 | entry->elements[i] = page_address(page); |
| 2344 | if (card->options.performance_stats) |
| 2345 | card->perf_stats.sg_alloc_page_rx++; |
| 2346 | } |
| 2347 | } |
| 2348 | } |
| 2349 | list_del_init(&entry->list); |
| 2350 | return entry; |
| 2351 | } |
| 2352 | |
| 2353 | static int qeth_init_input_buffer(struct qeth_card *card, |
| 2354 | struct qeth_qdio_buffer *buf) |
| 2355 | { |
| 2356 | struct qeth_buffer_pool_entry *pool_entry; |
| 2357 | int i; |
| 2358 | |
| 2359 | pool_entry = qeth_find_free_buffer_pool_entry(card); |
| 2360 | if (!pool_entry) |
| 2361 | return 1; |
| 2362 | |
| 2363 | /* |
| 2364 | * since the buffer is accessed only from the input_tasklet |
| 2365 | * there shouldn't be a need to synchronize; also, since we use |
| 2366 | * the QETH_IN_BUF_REQUEUE_THRESHOLD we should never run out off |
| 2367 | * buffers |
| 2368 | */ |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2369 | |
| 2370 | buf->pool_entry = pool_entry; |
| 2371 | for (i = 0; i < QETH_MAX_BUFFER_ELEMENTS(card); ++i) { |
| 2372 | buf->buffer->element[i].length = PAGE_SIZE; |
| 2373 | buf->buffer->element[i].addr = pool_entry->elements[i]; |
| 2374 | if (i == QETH_MAX_BUFFER_ELEMENTS(card) - 1) |
| 2375 | buf->buffer->element[i].flags = SBAL_FLAGS_LAST_ENTRY; |
| 2376 | else |
| 2377 | buf->buffer->element[i].flags = 0; |
| 2378 | } |
| 2379 | return 0; |
| 2380 | } |
| 2381 | |
| 2382 | int qeth_init_qdio_queues(struct qeth_card *card) |
| 2383 | { |
| 2384 | int i, j; |
| 2385 | int rc; |
| 2386 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2387 | QETH_DBF_TEXT(SETUP, 2, "initqdqs"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2388 | |
| 2389 | /* inbound queue */ |
| 2390 | memset(card->qdio.in_q->qdio_bufs, 0, |
| 2391 | QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer)); |
| 2392 | qeth_initialize_working_pool_list(card); |
| 2393 | /*give only as many buffers to hardware as we have buffer pool entries*/ |
| 2394 | for (i = 0; i < card->qdio.in_buf_pool.buf_count - 1; ++i) |
| 2395 | qeth_init_input_buffer(card, &card->qdio.in_q->bufs[i]); |
| 2396 | card->qdio.in_q->next_buf_to_init = |
| 2397 | card->qdio.in_buf_pool.buf_count - 1; |
| 2398 | rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, 0, |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2399 | card->qdio.in_buf_pool.buf_count - 1); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2400 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2401 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2402 | return rc; |
| 2403 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2404 | /* outbound queue */ |
| 2405 | for (i = 0; i < card->qdio.no_out_queues; ++i) { |
| 2406 | memset(card->qdio.out_qs[i]->qdio_bufs, 0, |
| 2407 | QDIO_MAX_BUFFERS_PER_Q * sizeof(struct qdio_buffer)); |
| 2408 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j) { |
| 2409 | qeth_clear_output_buffer(card->qdio.out_qs[i], |
| 2410 | &card->qdio.out_qs[i]->bufs[j]); |
| 2411 | } |
| 2412 | card->qdio.out_qs[i]->card = card; |
| 2413 | card->qdio.out_qs[i]->next_buf_to_fill = 0; |
| 2414 | card->qdio.out_qs[i]->do_pack = 0; |
| 2415 | atomic_set(&card->qdio.out_qs[i]->used_buffers, 0); |
| 2416 | atomic_set(&card->qdio.out_qs[i]->set_pci_flags_count, 0); |
| 2417 | atomic_set(&card->qdio.out_qs[i]->state, |
| 2418 | QETH_OUT_Q_UNLOCKED); |
| 2419 | } |
| 2420 | return 0; |
| 2421 | } |
| 2422 | EXPORT_SYMBOL_GPL(qeth_init_qdio_queues); |
| 2423 | |
| 2424 | static inline __u8 qeth_get_ipa_adp_type(enum qeth_link_types link_type) |
| 2425 | { |
| 2426 | switch (link_type) { |
| 2427 | case QETH_LINK_TYPE_HSTR: |
| 2428 | return 2; |
| 2429 | default: |
| 2430 | return 1; |
| 2431 | } |
| 2432 | } |
| 2433 | |
| 2434 | static void qeth_fill_ipacmd_header(struct qeth_card *card, |
| 2435 | struct qeth_ipa_cmd *cmd, __u8 command, |
| 2436 | enum qeth_prot_versions prot) |
| 2437 | { |
| 2438 | memset(cmd, 0, sizeof(struct qeth_ipa_cmd)); |
| 2439 | cmd->hdr.command = command; |
| 2440 | cmd->hdr.initiator = IPA_CMD_INITIATOR_HOST; |
| 2441 | cmd->hdr.seqno = card->seqno.ipa; |
| 2442 | cmd->hdr.adapter_type = qeth_get_ipa_adp_type(card->info.link_type); |
| 2443 | cmd->hdr.rel_adapter_no = (__u8) card->info.portno; |
| 2444 | if (card->options.layer2) |
| 2445 | cmd->hdr.prim_version_no = 2; |
| 2446 | else |
| 2447 | cmd->hdr.prim_version_no = 1; |
| 2448 | cmd->hdr.param_count = 1; |
| 2449 | cmd->hdr.prot_version = prot; |
| 2450 | cmd->hdr.ipa_supported = 0; |
| 2451 | cmd->hdr.ipa_enabled = 0; |
| 2452 | } |
| 2453 | |
| 2454 | struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *card, |
| 2455 | enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot) |
| 2456 | { |
| 2457 | struct qeth_cmd_buffer *iob; |
| 2458 | struct qeth_ipa_cmd *cmd; |
| 2459 | |
| 2460 | iob = qeth_wait_for_buffer(&card->write); |
| 2461 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| 2462 | qeth_fill_ipacmd_header(card, cmd, ipacmd, prot); |
| 2463 | |
| 2464 | return iob; |
| 2465 | } |
| 2466 | EXPORT_SYMBOL_GPL(qeth_get_ipacmd_buffer); |
| 2467 | |
| 2468 | void qeth_prepare_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, |
| 2469 | char prot_type) |
| 2470 | { |
| 2471 | memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); |
| 2472 | memcpy(QETH_IPA_CMD_PROT_TYPE(iob->data), &prot_type, 1); |
| 2473 | memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), |
| 2474 | &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); |
| 2475 | } |
| 2476 | EXPORT_SYMBOL_GPL(qeth_prepare_ipa_cmd); |
| 2477 | |
| 2478 | int qeth_send_ipa_cmd(struct qeth_card *card, struct qeth_cmd_buffer *iob, |
| 2479 | int (*reply_cb)(struct qeth_card *, struct qeth_reply*, |
| 2480 | unsigned long), |
| 2481 | void *reply_param) |
| 2482 | { |
| 2483 | int rc; |
| 2484 | char prot_type; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2485 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 2486 | QETH_CARD_TEXT(card, 4, "sendipa"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2487 | |
| 2488 | if (card->options.layer2) |
| 2489 | if (card->info.type == QETH_CARD_TYPE_OSN) |
| 2490 | prot_type = QETH_PROT_OSN2; |
| 2491 | else |
| 2492 | prot_type = QETH_PROT_LAYER2; |
| 2493 | else |
| 2494 | prot_type = QETH_PROT_TCPIP; |
| 2495 | qeth_prepare_ipa_cmd(card, iob, prot_type); |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2496 | rc = qeth_send_control_data(card, IPA_CMD_LENGTH, |
| 2497 | iob, reply_cb, reply_param); |
Ursula Braun | 908abbb | 2010-07-22 23:15:06 +0000 | [diff] [blame] | 2498 | if (rc == -ETIME) { |
| 2499 | qeth_clear_ipacmd_list(card); |
| 2500 | qeth_schedule_recovery(card); |
| 2501 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2502 | return rc; |
| 2503 | } |
| 2504 | EXPORT_SYMBOL_GPL(qeth_send_ipa_cmd); |
| 2505 | |
| 2506 | static int qeth_send_startstoplan(struct qeth_card *card, |
| 2507 | enum qeth_ipa_cmds ipacmd, enum qeth_prot_versions prot) |
| 2508 | { |
| 2509 | int rc; |
| 2510 | struct qeth_cmd_buffer *iob; |
| 2511 | |
| 2512 | iob = qeth_get_ipacmd_buffer(card, ipacmd, prot); |
| 2513 | rc = qeth_send_ipa_cmd(card, iob, NULL, NULL); |
| 2514 | |
| 2515 | return rc; |
| 2516 | } |
| 2517 | |
| 2518 | int qeth_send_startlan(struct qeth_card *card) |
| 2519 | { |
| 2520 | int rc; |
| 2521 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2522 | QETH_DBF_TEXT(SETUP, 2, "strtlan"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2523 | |
| 2524 | rc = qeth_send_startstoplan(card, IPA_CMD_STARTLAN, 0); |
| 2525 | return rc; |
| 2526 | } |
| 2527 | EXPORT_SYMBOL_GPL(qeth_send_startlan); |
| 2528 | |
| 2529 | int qeth_send_stoplan(struct qeth_card *card) |
| 2530 | { |
| 2531 | int rc = 0; |
| 2532 | |
| 2533 | /* |
| 2534 | * TODO: according to the IPA format document page 14, |
| 2535 | * TCP/IP (we!) never issue a STOPLAN |
| 2536 | * is this right ?!? |
| 2537 | */ |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 2538 | QETH_DBF_TEXT(SETUP, 2, "stoplan"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2539 | |
| 2540 | rc = qeth_send_startstoplan(card, IPA_CMD_STOPLAN, 0); |
| 2541 | return rc; |
| 2542 | } |
| 2543 | EXPORT_SYMBOL_GPL(qeth_send_stoplan); |
| 2544 | |
| 2545 | int qeth_default_setadapterparms_cb(struct qeth_card *card, |
| 2546 | struct qeth_reply *reply, unsigned long data) |
| 2547 | { |
| 2548 | struct qeth_ipa_cmd *cmd; |
| 2549 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 2550 | QETH_CARD_TEXT(card, 4, "defadpcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2551 | |
| 2552 | cmd = (struct qeth_ipa_cmd *) data; |
| 2553 | if (cmd->hdr.return_code == 0) |
| 2554 | cmd->hdr.return_code = |
| 2555 | cmd->data.setadapterparms.hdr.return_code; |
| 2556 | return 0; |
| 2557 | } |
| 2558 | EXPORT_SYMBOL_GPL(qeth_default_setadapterparms_cb); |
| 2559 | |
| 2560 | static int qeth_query_setadapterparms_cb(struct qeth_card *card, |
| 2561 | struct qeth_reply *reply, unsigned long data) |
| 2562 | { |
| 2563 | struct qeth_ipa_cmd *cmd; |
| 2564 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 2565 | QETH_CARD_TEXT(card, 3, "quyadpcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2566 | |
| 2567 | cmd = (struct qeth_ipa_cmd *) data; |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 2568 | if (cmd->data.setadapterparms.data.query_cmds_supp.lan_type & 0x7f) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2569 | card->info.link_type = |
| 2570 | cmd->data.setadapterparms.data.query_cmds_supp.lan_type; |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 2571 | QETH_DBF_TEXT_(SETUP, 2, "lnk %d", card->info.link_type); |
| 2572 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2573 | card->options.adp.supported_funcs = |
| 2574 | cmd->data.setadapterparms.data.query_cmds_supp.supported_cmds; |
| 2575 | return qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd); |
| 2576 | } |
| 2577 | |
| 2578 | struct qeth_cmd_buffer *qeth_get_adapter_cmd(struct qeth_card *card, |
| 2579 | __u32 command, __u32 cmdlen) |
| 2580 | { |
| 2581 | struct qeth_cmd_buffer *iob; |
| 2582 | struct qeth_ipa_cmd *cmd; |
| 2583 | |
| 2584 | iob = qeth_get_ipacmd_buffer(card, IPA_CMD_SETADAPTERPARMS, |
| 2585 | QETH_PROT_IPV4); |
| 2586 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| 2587 | cmd->data.setadapterparms.hdr.cmdlength = cmdlen; |
| 2588 | cmd->data.setadapterparms.hdr.command_code = command; |
| 2589 | cmd->data.setadapterparms.hdr.used_total = 1; |
| 2590 | cmd->data.setadapterparms.hdr.seq_no = 1; |
| 2591 | |
| 2592 | return iob; |
| 2593 | } |
| 2594 | EXPORT_SYMBOL_GPL(qeth_get_adapter_cmd); |
| 2595 | |
| 2596 | int qeth_query_setadapterparms(struct qeth_card *card) |
| 2597 | { |
| 2598 | int rc; |
| 2599 | struct qeth_cmd_buffer *iob; |
| 2600 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 2601 | QETH_CARD_TEXT(card, 3, "queryadp"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2602 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_QUERY_COMMANDS_SUPPORTED, |
| 2603 | sizeof(struct qeth_ipacmd_setadpparms)); |
| 2604 | rc = qeth_send_ipa_cmd(card, iob, qeth_query_setadapterparms_cb, NULL); |
| 2605 | return rc; |
| 2606 | } |
| 2607 | EXPORT_SYMBOL_GPL(qeth_query_setadapterparms); |
| 2608 | |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 2609 | int qeth_check_qdio_errors(struct qeth_card *card, struct qdio_buffer *buf, |
| 2610 | unsigned int qdio_error, const char *dbftext) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2611 | { |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2612 | if (qdio_error) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 2613 | QETH_CARD_TEXT(card, 2, dbftext); |
Carsten Otte | 38593d0 | 2010-06-21 22:57:08 +0000 | [diff] [blame] | 2614 | QETH_CARD_TEXT_(card, 2, " F15=%02X", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2615 | buf->element[15].flags & 0xff); |
Carsten Otte | 38593d0 | 2010-06-21 22:57:08 +0000 | [diff] [blame] | 2616 | QETH_CARD_TEXT_(card, 2, " F14=%02X", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2617 | buf->element[14].flags & 0xff); |
Carsten Otte | 38593d0 | 2010-06-21 22:57:08 +0000 | [diff] [blame] | 2618 | QETH_CARD_TEXT_(card, 2, " qerr=%X", qdio_error); |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 2619 | if ((buf->element[15].flags & 0xff) == 0x12) { |
| 2620 | card->stats.rx_dropped++; |
| 2621 | return 0; |
| 2622 | } else |
| 2623 | return 1; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2624 | } |
| 2625 | return 0; |
| 2626 | } |
| 2627 | EXPORT_SYMBOL_GPL(qeth_check_qdio_errors); |
| 2628 | |
| 2629 | void qeth_queue_input_buffer(struct qeth_card *card, int index) |
| 2630 | { |
| 2631 | struct qeth_qdio_q *queue = card->qdio.in_q; |
| 2632 | int count; |
| 2633 | int i; |
| 2634 | int rc; |
| 2635 | int newcount = 0; |
| 2636 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2637 | count = (index < queue->next_buf_to_init)? |
| 2638 | card->qdio.in_buf_pool.buf_count - |
| 2639 | (queue->next_buf_to_init - index) : |
| 2640 | card->qdio.in_buf_pool.buf_count - |
| 2641 | (queue->next_buf_to_init + QDIO_MAX_BUFFERS_PER_Q - index); |
| 2642 | /* only requeue at a certain threshold to avoid SIGAs */ |
| 2643 | if (count >= QETH_IN_BUF_REQUEUE_THRESHOLD(card)) { |
| 2644 | for (i = queue->next_buf_to_init; |
| 2645 | i < queue->next_buf_to_init + count; ++i) { |
| 2646 | if (qeth_init_input_buffer(card, |
| 2647 | &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q])) { |
| 2648 | break; |
| 2649 | } else { |
| 2650 | newcount++; |
| 2651 | } |
| 2652 | } |
| 2653 | |
| 2654 | if (newcount < count) { |
| 2655 | /* we are in memory shortage so we switch back to |
| 2656 | traditional skb allocation and drop packages */ |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2657 | atomic_set(&card->force_alloc_skb, 3); |
| 2658 | count = newcount; |
| 2659 | } else { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2660 | atomic_add_unless(&card->force_alloc_skb, -1, 0); |
| 2661 | } |
| 2662 | |
| 2663 | /* |
| 2664 | * according to old code it should be avoided to requeue all |
| 2665 | * 128 buffers in order to benefit from PCI avoidance. |
| 2666 | * this function keeps at least one buffer (the buffer at |
| 2667 | * 'index') un-requeued -> this buffer is the first buffer that |
| 2668 | * will be requeued the next time |
| 2669 | */ |
| 2670 | if (card->options.performance_stats) { |
| 2671 | card->perf_stats.inbound_do_qdio_cnt++; |
| 2672 | card->perf_stats.inbound_do_qdio_start_time = |
| 2673 | qeth_get_micros(); |
| 2674 | } |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2675 | rc = do_QDIO(CARD_DDEV(card), QDIO_FLAG_SYNC_INPUT, 0, |
| 2676 | queue->next_buf_to_init, count); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2677 | if (card->options.performance_stats) |
| 2678 | card->perf_stats.inbound_do_qdio_time += |
| 2679 | qeth_get_micros() - |
| 2680 | card->perf_stats.inbound_do_qdio_start_time; |
| 2681 | if (rc) { |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 2682 | dev_warn(&card->gdev->dev, |
| 2683 | "QDIO reported an error, rc=%i\n", rc); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 2684 | QETH_CARD_TEXT(card, 2, "qinberr"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2685 | } |
| 2686 | queue->next_buf_to_init = (queue->next_buf_to_init + count) % |
| 2687 | QDIO_MAX_BUFFERS_PER_Q; |
| 2688 | } |
| 2689 | } |
| 2690 | EXPORT_SYMBOL_GPL(qeth_queue_input_buffer); |
| 2691 | |
| 2692 | static int qeth_handle_send_error(struct qeth_card *card, |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2693 | struct qeth_qdio_out_buffer *buffer, unsigned int qdio_err) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2694 | { |
| 2695 | int sbalf15 = buffer->buffer->element[15].flags & 0xff; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2696 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 2697 | QETH_CARD_TEXT(card, 6, "hdsnderr"); |
Klaus-Dieter Wacker | 58490f1 | 2009-08-26 02:01:06 +0000 | [diff] [blame] | 2698 | if (card->info.type == QETH_CARD_TYPE_IQD) { |
| 2699 | if (sbalf15 == 0) { |
| 2700 | qdio_err = 0; |
| 2701 | } else { |
| 2702 | qdio_err = 1; |
| 2703 | } |
| 2704 | } |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 2705 | qeth_check_qdio_errors(card, buffer->buffer, qdio_err, "qouterr"); |
Jan Glauber | d303b6f | 2009-03-26 15:24:31 +0100 | [diff] [blame] | 2706 | |
| 2707 | if (!qdio_err) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2708 | return QETH_SEND_ERROR_NONE; |
Jan Glauber | d303b6f | 2009-03-26 15:24:31 +0100 | [diff] [blame] | 2709 | |
| 2710 | if ((sbalf15 >= 15) && (sbalf15 <= 31)) |
| 2711 | return QETH_SEND_ERROR_RETRY; |
| 2712 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 2713 | QETH_CARD_TEXT(card, 1, "lnkfail"); |
| 2714 | QETH_CARD_TEXT_(card, 1, "%04x %02x", |
Jan Glauber | d303b6f | 2009-03-26 15:24:31 +0100 | [diff] [blame] | 2715 | (u16)qdio_err, (u8)sbalf15); |
| 2716 | return QETH_SEND_ERROR_LINK_FAILURE; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2717 | } |
| 2718 | |
| 2719 | /* |
| 2720 | * Switched to packing state if the number of used buffers on a queue |
| 2721 | * reaches a certain limit. |
| 2722 | */ |
| 2723 | static void qeth_switch_to_packing_if_needed(struct qeth_qdio_out_q *queue) |
| 2724 | { |
| 2725 | if (!queue->do_pack) { |
| 2726 | if (atomic_read(&queue->used_buffers) |
| 2727 | >= QETH_HIGH_WATERMARK_PACK){ |
| 2728 | /* switch non-PACKING -> PACKING */ |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 2729 | QETH_CARD_TEXT(queue->card, 6, "np->pack"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2730 | if (queue->card->options.performance_stats) |
| 2731 | queue->card->perf_stats.sc_dp_p++; |
| 2732 | queue->do_pack = 1; |
| 2733 | } |
| 2734 | } |
| 2735 | } |
| 2736 | |
| 2737 | /* |
| 2738 | * Switches from packing to non-packing mode. If there is a packing |
| 2739 | * buffer on the queue this buffer will be prepared to be flushed. |
| 2740 | * In that case 1 is returned to inform the caller. If no buffer |
| 2741 | * has to be flushed, zero is returned. |
| 2742 | */ |
| 2743 | static int qeth_switch_to_nonpacking_if_needed(struct qeth_qdio_out_q *queue) |
| 2744 | { |
| 2745 | struct qeth_qdio_out_buffer *buffer; |
| 2746 | int flush_count = 0; |
| 2747 | |
| 2748 | if (queue->do_pack) { |
| 2749 | if (atomic_read(&queue->used_buffers) |
| 2750 | <= QETH_LOW_WATERMARK_PACK) { |
| 2751 | /* switch PACKING -> non-PACKING */ |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 2752 | QETH_CARD_TEXT(queue->card, 6, "pack->np"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2753 | if (queue->card->options.performance_stats) |
| 2754 | queue->card->perf_stats.sc_p_dp++; |
| 2755 | queue->do_pack = 0; |
| 2756 | /* flush packing buffers */ |
| 2757 | buffer = &queue->bufs[queue->next_buf_to_fill]; |
| 2758 | if ((atomic_read(&buffer->state) == |
| 2759 | QETH_QDIO_BUF_EMPTY) && |
| 2760 | (buffer->next_element_to_fill > 0)) { |
| 2761 | atomic_set(&buffer->state, |
| 2762 | QETH_QDIO_BUF_PRIMED); |
| 2763 | flush_count++; |
| 2764 | queue->next_buf_to_fill = |
| 2765 | (queue->next_buf_to_fill + 1) % |
| 2766 | QDIO_MAX_BUFFERS_PER_Q; |
| 2767 | } |
| 2768 | } |
| 2769 | } |
| 2770 | return flush_count; |
| 2771 | } |
| 2772 | |
| 2773 | /* |
| 2774 | * Called to flush a packing buffer if no more pci flags are on the queue. |
| 2775 | * Checks if there is a packing buffer and prepares it to be flushed. |
| 2776 | * In that case returns 1, otherwise zero. |
| 2777 | */ |
| 2778 | static int qeth_flush_buffers_on_no_pci(struct qeth_qdio_out_q *queue) |
| 2779 | { |
| 2780 | struct qeth_qdio_out_buffer *buffer; |
| 2781 | |
| 2782 | buffer = &queue->bufs[queue->next_buf_to_fill]; |
| 2783 | if ((atomic_read(&buffer->state) == QETH_QDIO_BUF_EMPTY) && |
| 2784 | (buffer->next_element_to_fill > 0)) { |
| 2785 | /* it's a packing buffer */ |
| 2786 | atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); |
| 2787 | queue->next_buf_to_fill = |
| 2788 | (queue->next_buf_to_fill + 1) % QDIO_MAX_BUFFERS_PER_Q; |
| 2789 | return 1; |
| 2790 | } |
| 2791 | return 0; |
| 2792 | } |
| 2793 | |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2794 | static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index, |
| 2795 | int count) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2796 | { |
| 2797 | struct qeth_qdio_out_buffer *buf; |
| 2798 | int rc; |
| 2799 | int i; |
| 2800 | unsigned int qdio_flags; |
| 2801 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2802 | for (i = index; i < index + count; ++i) { |
| 2803 | buf = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]; |
| 2804 | buf->buffer->element[buf->next_element_to_fill - 1].flags |= |
| 2805 | SBAL_FLAGS_LAST_ENTRY; |
| 2806 | |
| 2807 | if (queue->card->info.type == QETH_CARD_TYPE_IQD) |
| 2808 | continue; |
| 2809 | |
| 2810 | if (!queue->do_pack) { |
| 2811 | if ((atomic_read(&queue->used_buffers) >= |
| 2812 | (QETH_HIGH_WATERMARK_PACK - |
| 2813 | QETH_WATERMARK_PACK_FUZZ)) && |
| 2814 | !atomic_read(&queue->set_pci_flags_count)) { |
| 2815 | /* it's likely that we'll go to packing |
| 2816 | * mode soon */ |
| 2817 | atomic_inc(&queue->set_pci_flags_count); |
| 2818 | buf->buffer->element[0].flags |= 0x40; |
| 2819 | } |
| 2820 | } else { |
| 2821 | if (!atomic_read(&queue->set_pci_flags_count)) { |
| 2822 | /* |
| 2823 | * there's no outstanding PCI any more, so we |
| 2824 | * have to request a PCI to be sure the the PCI |
| 2825 | * will wake at some time in the future then we |
| 2826 | * can flush packed buffers that might still be |
| 2827 | * hanging around, which can happen if no |
| 2828 | * further send was requested by the stack |
| 2829 | */ |
| 2830 | atomic_inc(&queue->set_pci_flags_count); |
| 2831 | buf->buffer->element[0].flags |= 0x40; |
| 2832 | } |
| 2833 | } |
| 2834 | } |
| 2835 | |
Klaus-Dieter Wacker | 58490f1 | 2009-08-26 02:01:06 +0000 | [diff] [blame] | 2836 | queue->sync_iqdio_error = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2837 | queue->card->dev->trans_start = jiffies; |
| 2838 | if (queue->card->options.performance_stats) { |
| 2839 | queue->card->perf_stats.outbound_do_qdio_cnt++; |
| 2840 | queue->card->perf_stats.outbound_do_qdio_start_time = |
| 2841 | qeth_get_micros(); |
| 2842 | } |
| 2843 | qdio_flags = QDIO_FLAG_SYNC_OUTPUT; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2844 | if (atomic_read(&queue->set_pci_flags_count)) |
| 2845 | qdio_flags |= QDIO_FLAG_PCI_OUT; |
| 2846 | rc = do_QDIO(CARD_DDEV(queue->card), qdio_flags, |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2847 | queue->queue_no, index, count); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2848 | if (queue->card->options.performance_stats) |
| 2849 | queue->card->perf_stats.outbound_do_qdio_time += |
| 2850 | qeth_get_micros() - |
| 2851 | queue->card->perf_stats.outbound_do_qdio_start_time; |
Klaus-Dieter Wacker | 58490f1 | 2009-08-26 02:01:06 +0000 | [diff] [blame] | 2852 | if (rc > 0) { |
| 2853 | if (!(rc & QDIO_ERROR_SIGA_BUSY)) |
| 2854 | queue->sync_iqdio_error = rc & 3; |
| 2855 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2856 | if (rc) { |
Jan Glauber | d303b6f | 2009-03-26 15:24:31 +0100 | [diff] [blame] | 2857 | queue->card->stats.tx_errors += count; |
| 2858 | /* ignore temporary SIGA errors without busy condition */ |
| 2859 | if (rc == QDIO_ERROR_SIGA_TARGET) |
| 2860 | return; |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 2861 | QETH_CARD_TEXT(queue->card, 2, "flushbuf"); |
| 2862 | QETH_CARD_TEXT_(queue->card, 2, " err%d", rc); |
Jan Glauber | d303b6f | 2009-03-26 15:24:31 +0100 | [diff] [blame] | 2863 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2864 | /* this must not happen under normal circumstances. if it |
| 2865 | * happens something is really wrong -> recover */ |
| 2866 | qeth_schedule_recovery(queue->card); |
| 2867 | return; |
| 2868 | } |
| 2869 | atomic_add(count, &queue->used_buffers); |
| 2870 | if (queue->card->options.performance_stats) |
| 2871 | queue->card->perf_stats.bufs_sent += count; |
| 2872 | } |
| 2873 | |
| 2874 | static void qeth_check_outbound_queue(struct qeth_qdio_out_q *queue) |
| 2875 | { |
| 2876 | int index; |
| 2877 | int flush_cnt = 0; |
| 2878 | int q_was_packing = 0; |
| 2879 | |
| 2880 | /* |
| 2881 | * check if weed have to switch to non-packing mode or if |
| 2882 | * we have to get a pci flag out on the queue |
| 2883 | */ |
| 2884 | if ((atomic_read(&queue->used_buffers) <= QETH_LOW_WATERMARK_PACK) || |
| 2885 | !atomic_read(&queue->set_pci_flags_count)) { |
| 2886 | if (atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH) == |
| 2887 | QETH_OUT_Q_UNLOCKED) { |
| 2888 | /* |
| 2889 | * If we get in here, there was no action in |
| 2890 | * do_send_packet. So, we check if there is a |
| 2891 | * packing buffer to be flushed here. |
| 2892 | */ |
| 2893 | netif_stop_queue(queue->card->dev); |
| 2894 | index = queue->next_buf_to_fill; |
| 2895 | q_was_packing = queue->do_pack; |
| 2896 | /* queue->do_pack may change */ |
| 2897 | barrier(); |
| 2898 | flush_cnt += qeth_switch_to_nonpacking_if_needed(queue); |
| 2899 | if (!flush_cnt && |
| 2900 | !atomic_read(&queue->set_pci_flags_count)) |
| 2901 | flush_cnt += |
| 2902 | qeth_flush_buffers_on_no_pci(queue); |
| 2903 | if (queue->card->options.performance_stats && |
| 2904 | q_was_packing) |
| 2905 | queue->card->perf_stats.bufs_sent_pack += |
| 2906 | flush_cnt; |
| 2907 | if (flush_cnt) |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2908 | qeth_flush_buffers(queue, index, flush_cnt); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2909 | atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); |
| 2910 | } |
| 2911 | } |
| 2912 | } |
| 2913 | |
Frank Blaschka | a1c3ed4 | 2010-09-07 21:14:42 +0000 | [diff] [blame] | 2914 | void qeth_qdio_start_poll(struct ccw_device *ccwdev, int queue, |
| 2915 | unsigned long card_ptr) |
| 2916 | { |
| 2917 | struct qeth_card *card = (struct qeth_card *)card_ptr; |
| 2918 | |
| 2919 | if (card->dev) |
| 2920 | napi_schedule(&card->napi); |
| 2921 | } |
| 2922 | EXPORT_SYMBOL_GPL(qeth_qdio_start_poll); |
| 2923 | |
| 2924 | void qeth_qdio_input_handler(struct ccw_device *ccwdev, unsigned int qdio_err, |
| 2925 | unsigned int queue, int first_element, int count, |
| 2926 | unsigned long card_ptr) |
| 2927 | { |
| 2928 | struct qeth_card *card = (struct qeth_card *)card_ptr; |
| 2929 | |
| 2930 | if (qdio_err) |
| 2931 | qeth_schedule_recovery(card); |
| 2932 | } |
| 2933 | EXPORT_SYMBOL_GPL(qeth_qdio_input_handler); |
| 2934 | |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2935 | void qeth_qdio_output_handler(struct ccw_device *ccwdev, |
| 2936 | unsigned int qdio_error, int __queue, int first_element, |
| 2937 | int count, unsigned long card_ptr) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2938 | { |
| 2939 | struct qeth_card *card = (struct qeth_card *) card_ptr; |
| 2940 | struct qeth_qdio_out_q *queue = card->qdio.out_qs[__queue]; |
| 2941 | struct qeth_qdio_out_buffer *buffer; |
| 2942 | int i; |
Klaus-Dieter Wacker | 58490f1 | 2009-08-26 02:01:06 +0000 | [diff] [blame] | 2943 | unsigned qeth_send_err; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2944 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 2945 | QETH_CARD_TEXT(card, 6, "qdouhdl"); |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2946 | if (qdio_error & QDIO_ERROR_ACTIVATE_CHECK_CONDITION) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 2947 | QETH_CARD_TEXT(card, 2, "achkcond"); |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 2948 | netif_stop_queue(card->dev); |
| 2949 | qeth_schedule_recovery(card); |
| 2950 | return; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2951 | } |
| 2952 | if (card->options.performance_stats) { |
| 2953 | card->perf_stats.outbound_handler_cnt++; |
| 2954 | card->perf_stats.outbound_handler_start_time = |
| 2955 | qeth_get_micros(); |
| 2956 | } |
| 2957 | for (i = first_element; i < (first_element + count); ++i) { |
| 2958 | buffer = &queue->bufs[i % QDIO_MAX_BUFFERS_PER_Q]; |
Klaus-Dieter Wacker | 58490f1 | 2009-08-26 02:01:06 +0000 | [diff] [blame] | 2959 | qeth_send_err = qeth_handle_send_error(card, buffer, qdio_error); |
| 2960 | __qeth_clear_output_buffer(queue, buffer, |
| 2961 | (qeth_send_err == QETH_SEND_ERROR_RETRY) ? 1 : 0); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2962 | } |
| 2963 | atomic_sub(count, &queue->used_buffers); |
| 2964 | /* check if we need to do something on this outbound queue */ |
| 2965 | if (card->info.type != QETH_CARD_TYPE_IQD) |
| 2966 | qeth_check_outbound_queue(queue); |
| 2967 | |
| 2968 | netif_wake_queue(queue->card->dev); |
| 2969 | if (card->options.performance_stats) |
| 2970 | card->perf_stats.outbound_handler_time += qeth_get_micros() - |
| 2971 | card->perf_stats.outbound_handler_start_time; |
| 2972 | } |
| 2973 | EXPORT_SYMBOL_GPL(qeth_qdio_output_handler); |
| 2974 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2975 | int qeth_get_priority_queue(struct qeth_card *card, struct sk_buff *skb, |
| 2976 | int ipv, int cast_type) |
| 2977 | { |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 2978 | if (!ipv && (card->info.type == QETH_CARD_TYPE_OSD || |
| 2979 | card->info.type == QETH_CARD_TYPE_OSX)) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 2980 | return card->qdio.default_out_queue; |
| 2981 | switch (card->qdio.no_out_queues) { |
| 2982 | case 4: |
| 2983 | if (cast_type && card->info.is_multicast_different) |
| 2984 | return card->info.is_multicast_different & |
| 2985 | (card->qdio.no_out_queues - 1); |
| 2986 | if (card->qdio.do_prio_queueing && (ipv == 4)) { |
| 2987 | const u8 tos = ip_hdr(skb)->tos; |
| 2988 | |
| 2989 | if (card->qdio.do_prio_queueing == |
| 2990 | QETH_PRIO_Q_ING_TOS) { |
| 2991 | if (tos & IP_TOS_NOTIMPORTANT) |
| 2992 | return 3; |
| 2993 | if (tos & IP_TOS_HIGHRELIABILITY) |
| 2994 | return 2; |
| 2995 | if (tos & IP_TOS_HIGHTHROUGHPUT) |
| 2996 | return 1; |
| 2997 | if (tos & IP_TOS_LOWDELAY) |
| 2998 | return 0; |
| 2999 | } |
| 3000 | if (card->qdio.do_prio_queueing == |
| 3001 | QETH_PRIO_Q_ING_PREC) |
| 3002 | return 3 - (tos >> 6); |
| 3003 | } else if (card->qdio.do_prio_queueing && (ipv == 6)) { |
| 3004 | /* TODO: IPv6!!! */ |
| 3005 | } |
| 3006 | return card->qdio.default_out_queue; |
| 3007 | case 1: /* fallthrough for single-out-queue 1920-device */ |
| 3008 | default: |
| 3009 | return card->qdio.default_out_queue; |
| 3010 | } |
| 3011 | } |
| 3012 | EXPORT_SYMBOL_GPL(qeth_get_priority_queue); |
| 3013 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3014 | int qeth_get_elements_no(struct qeth_card *card, void *hdr, |
| 3015 | struct sk_buff *skb, int elems) |
| 3016 | { |
Frank Blaschka | 51aa165 | 2010-06-21 22:57:10 +0000 | [diff] [blame] | 3017 | int dlen = skb->len - skb->data_len; |
| 3018 | int elements_needed = PFN_UP((unsigned long)skb->data + dlen - 1) - |
| 3019 | PFN_DOWN((unsigned long)skb->data); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3020 | |
Frank Blaschka | 51aa165 | 2010-06-21 22:57:10 +0000 | [diff] [blame] | 3021 | elements_needed += skb_shinfo(skb)->nr_frags; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3022 | if ((elements_needed + elems) > QETH_MAX_BUFFER_ELEMENTS(card)) { |
Frank Blaschka | 14cc21b | 2008-06-06 12:37:46 +0200 | [diff] [blame] | 3023 | QETH_DBF_MESSAGE(2, "Invalid size of IP packet " |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3024 | "(Number=%d / Length=%d). Discarded.\n", |
| 3025 | (elements_needed+elems), skb->len); |
| 3026 | return 0; |
| 3027 | } |
| 3028 | return elements_needed; |
| 3029 | } |
| 3030 | EXPORT_SYMBOL_GPL(qeth_get_elements_no); |
| 3031 | |
Frank Blaschka | 51aa165 | 2010-06-21 22:57:10 +0000 | [diff] [blame] | 3032 | int qeth_hdr_chk_and_bounce(struct sk_buff *skb, int len) |
| 3033 | { |
| 3034 | int hroom, inpage, rest; |
| 3035 | |
| 3036 | if (((unsigned long)skb->data & PAGE_MASK) != |
| 3037 | (((unsigned long)skb->data + len - 1) & PAGE_MASK)) { |
| 3038 | hroom = skb_headroom(skb); |
| 3039 | inpage = PAGE_SIZE - ((unsigned long) skb->data % PAGE_SIZE); |
| 3040 | rest = len - inpage; |
| 3041 | if (rest > hroom) |
| 3042 | return 1; |
| 3043 | memmove(skb->data - rest, skb->data, skb->len - skb->data_len); |
| 3044 | skb->data -= rest; |
| 3045 | QETH_DBF_MESSAGE(2, "skb bounce len: %d rest: %d\n", len, rest); |
| 3046 | } |
| 3047 | return 0; |
| 3048 | } |
| 3049 | EXPORT_SYMBOL_GPL(qeth_hdr_chk_and_bounce); |
| 3050 | |
Frank Blaschka | f90b744 | 2008-04-24 10:15:24 +0200 | [diff] [blame] | 3051 | static inline void __qeth_fill_buffer(struct sk_buff *skb, |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 3052 | struct qdio_buffer *buffer, int is_tso, int *next_element_to_fill, |
| 3053 | int offset) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3054 | { |
Frank Blaschka | 51aa165 | 2010-06-21 22:57:10 +0000 | [diff] [blame] | 3055 | int length = skb->len - skb->data_len; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3056 | int length_here; |
| 3057 | int element; |
| 3058 | char *data; |
Frank Blaschka | 51aa165 | 2010-06-21 22:57:10 +0000 | [diff] [blame] | 3059 | int first_lap, cnt; |
| 3060 | struct skb_frag_struct *frag; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3061 | |
| 3062 | element = *next_element_to_fill; |
| 3063 | data = skb->data; |
| 3064 | first_lap = (is_tso == 0 ? 1 : 0); |
| 3065 | |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 3066 | if (offset >= 0) { |
| 3067 | data = skb->data + offset; |
Frank Blaschka | e1f03ae | 2008-10-24 11:16:53 +0200 | [diff] [blame] | 3068 | length -= offset; |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 3069 | first_lap = 0; |
| 3070 | } |
| 3071 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3072 | while (length > 0) { |
| 3073 | /* length_here is the remaining amount of data in this page */ |
| 3074 | length_here = PAGE_SIZE - ((unsigned long) data % PAGE_SIZE); |
| 3075 | if (length < length_here) |
| 3076 | length_here = length; |
| 3077 | |
| 3078 | buffer->element[element].addr = data; |
| 3079 | buffer->element[element].length = length_here; |
| 3080 | length -= length_here; |
| 3081 | if (!length) { |
| 3082 | if (first_lap) |
Frank Blaschka | 51aa165 | 2010-06-21 22:57:10 +0000 | [diff] [blame] | 3083 | if (skb_shinfo(skb)->nr_frags) |
| 3084 | buffer->element[element].flags = |
| 3085 | SBAL_FLAGS_FIRST_FRAG; |
| 3086 | else |
| 3087 | buffer->element[element].flags = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3088 | else |
| 3089 | buffer->element[element].flags = |
Frank Blaschka | 51aa165 | 2010-06-21 22:57:10 +0000 | [diff] [blame] | 3090 | SBAL_FLAGS_MIDDLE_FRAG; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3091 | } else { |
| 3092 | if (first_lap) |
| 3093 | buffer->element[element].flags = |
| 3094 | SBAL_FLAGS_FIRST_FRAG; |
| 3095 | else |
| 3096 | buffer->element[element].flags = |
| 3097 | SBAL_FLAGS_MIDDLE_FRAG; |
| 3098 | } |
| 3099 | data += length_here; |
| 3100 | element++; |
| 3101 | first_lap = 0; |
| 3102 | } |
Frank Blaschka | 51aa165 | 2010-06-21 22:57:10 +0000 | [diff] [blame] | 3103 | |
| 3104 | for (cnt = 0; cnt < skb_shinfo(skb)->nr_frags; cnt++) { |
| 3105 | frag = &skb_shinfo(skb)->frags[cnt]; |
| 3106 | buffer->element[element].addr = (char *)page_to_phys(frag->page) |
| 3107 | + frag->page_offset; |
| 3108 | buffer->element[element].length = frag->size; |
| 3109 | buffer->element[element].flags = SBAL_FLAGS_MIDDLE_FRAG; |
| 3110 | element++; |
| 3111 | } |
| 3112 | |
| 3113 | if (buffer->element[element - 1].flags) |
| 3114 | buffer->element[element - 1].flags = SBAL_FLAGS_LAST_FRAG; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3115 | *next_element_to_fill = element; |
| 3116 | } |
| 3117 | |
Frank Blaschka | f90b744 | 2008-04-24 10:15:24 +0200 | [diff] [blame] | 3118 | static inline int qeth_fill_buffer(struct qeth_qdio_out_q *queue, |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 3119 | struct qeth_qdio_out_buffer *buf, struct sk_buff *skb, |
| 3120 | struct qeth_hdr *hdr, int offset, int hd_len) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3121 | { |
| 3122 | struct qdio_buffer *buffer; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3123 | int flush_cnt = 0, hdr_len, large_send = 0; |
| 3124 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3125 | buffer = buf->buffer; |
| 3126 | atomic_inc(&skb->users); |
| 3127 | skb_queue_tail(&buf->skb_list, skb); |
| 3128 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3129 | /*check first on TSO ....*/ |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 3130 | if (hdr->hdr.l3.id == QETH_HEADER_TYPE_TSO) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3131 | int element = buf->next_element_to_fill; |
| 3132 | |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 3133 | hdr_len = sizeof(struct qeth_hdr_tso) + |
| 3134 | ((struct qeth_hdr_tso *)hdr)->ext.dg_hdr_len; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3135 | /*fill first buffer entry only with header information */ |
| 3136 | buffer->element[element].addr = skb->data; |
| 3137 | buffer->element[element].length = hdr_len; |
| 3138 | buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG; |
| 3139 | buf->next_element_to_fill++; |
| 3140 | skb->data += hdr_len; |
| 3141 | skb->len -= hdr_len; |
| 3142 | large_send = 1; |
| 3143 | } |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 3144 | |
| 3145 | if (offset >= 0) { |
| 3146 | int element = buf->next_element_to_fill; |
| 3147 | buffer->element[element].addr = hdr; |
| 3148 | buffer->element[element].length = sizeof(struct qeth_hdr) + |
| 3149 | hd_len; |
| 3150 | buffer->element[element].flags = SBAL_FLAGS_FIRST_FRAG; |
| 3151 | buf->is_header[element] = 1; |
| 3152 | buf->next_element_to_fill++; |
| 3153 | } |
| 3154 | |
Frank Blaschka | 51aa165 | 2010-06-21 22:57:10 +0000 | [diff] [blame] | 3155 | __qeth_fill_buffer(skb, buffer, large_send, |
| 3156 | (int *)&buf->next_element_to_fill, offset); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3157 | |
| 3158 | if (!queue->do_pack) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3159 | QETH_CARD_TEXT(queue->card, 6, "fillbfnp"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3160 | /* set state to PRIMED -> will be flushed */ |
| 3161 | atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); |
| 3162 | flush_cnt = 1; |
| 3163 | } else { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3164 | QETH_CARD_TEXT(queue->card, 6, "fillbfpa"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3165 | if (queue->card->options.performance_stats) |
| 3166 | queue->card->perf_stats.skbs_sent_pack++; |
| 3167 | if (buf->next_element_to_fill >= |
| 3168 | QETH_MAX_BUFFER_ELEMENTS(queue->card)) { |
| 3169 | /* |
| 3170 | * packed buffer if full -> set state PRIMED |
| 3171 | * -> will be flushed |
| 3172 | */ |
| 3173 | atomic_set(&buf->state, QETH_QDIO_BUF_PRIMED); |
| 3174 | flush_cnt = 1; |
| 3175 | } |
| 3176 | } |
| 3177 | return flush_cnt; |
| 3178 | } |
| 3179 | |
| 3180 | int qeth_do_send_packet_fast(struct qeth_card *card, |
| 3181 | struct qeth_qdio_out_q *queue, struct sk_buff *skb, |
| 3182 | struct qeth_hdr *hdr, int elements_needed, |
Frank Blaschka | 64ef895 | 2009-03-24 20:57:16 +0000 | [diff] [blame] | 3183 | int offset, int hd_len) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3184 | { |
| 3185 | struct qeth_qdio_out_buffer *buffer; |
Klaus-Dieter Wacker | 58490f1 | 2009-08-26 02:01:06 +0000 | [diff] [blame] | 3186 | struct sk_buff *skb1; |
| 3187 | struct qeth_skb_data *retry_ctrl; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3188 | int index; |
Klaus-Dieter Wacker | 58490f1 | 2009-08-26 02:01:06 +0000 | [diff] [blame] | 3189 | int rc; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3190 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3191 | /* spin until we get the queue ... */ |
| 3192 | while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED, |
| 3193 | QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED); |
| 3194 | /* ... now we've got the queue */ |
| 3195 | index = queue->next_buf_to_fill; |
| 3196 | buffer = &queue->bufs[queue->next_buf_to_fill]; |
| 3197 | /* |
| 3198 | * check if buffer is empty to make sure that we do not 'overtake' |
| 3199 | * ourselves and try to fill a buffer that is already primed |
| 3200 | */ |
| 3201 | if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) |
| 3202 | goto out; |
Frank Blaschka | 64ef895 | 2009-03-24 20:57:16 +0000 | [diff] [blame] | 3203 | queue->next_buf_to_fill = (queue->next_buf_to_fill + 1) % |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3204 | QDIO_MAX_BUFFERS_PER_Q; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3205 | atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); |
Frank Blaschka | 64ef895 | 2009-03-24 20:57:16 +0000 | [diff] [blame] | 3206 | qeth_fill_buffer(queue, buffer, skb, hdr, offset, hd_len); |
| 3207 | qeth_flush_buffers(queue, index, 1); |
Klaus-Dieter Wacker | 58490f1 | 2009-08-26 02:01:06 +0000 | [diff] [blame] | 3208 | if (queue->sync_iqdio_error == 2) { |
| 3209 | skb1 = skb_dequeue(&buffer->skb_list); |
| 3210 | while (skb1) { |
| 3211 | atomic_dec(&skb1->users); |
| 3212 | skb1 = skb_dequeue(&buffer->skb_list); |
| 3213 | } |
| 3214 | retry_ctrl = (struct qeth_skb_data *) &skb->cb[16]; |
| 3215 | if (retry_ctrl->magic != QETH_SKB_MAGIC) { |
| 3216 | retry_ctrl->magic = QETH_SKB_MAGIC; |
| 3217 | retry_ctrl->count = 0; |
| 3218 | } |
| 3219 | if (retry_ctrl->count < QETH_SIGA_CC2_RETRIES) { |
| 3220 | retry_ctrl->count++; |
| 3221 | rc = dev_queue_xmit(skb); |
| 3222 | } else { |
| 3223 | dev_kfree_skb_any(skb); |
Carsten Otte | 38593d0 | 2010-06-21 22:57:08 +0000 | [diff] [blame] | 3224 | QETH_CARD_TEXT(card, 2, "qrdrop"); |
Klaus-Dieter Wacker | 58490f1 | 2009-08-26 02:01:06 +0000 | [diff] [blame] | 3225 | } |
| 3226 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3227 | return 0; |
| 3228 | out: |
| 3229 | atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); |
| 3230 | return -EBUSY; |
| 3231 | } |
| 3232 | EXPORT_SYMBOL_GPL(qeth_do_send_packet_fast); |
| 3233 | |
| 3234 | int qeth_do_send_packet(struct qeth_card *card, struct qeth_qdio_out_q *queue, |
| 3235 | struct sk_buff *skb, struct qeth_hdr *hdr, |
Frank Blaschka | 64ef895 | 2009-03-24 20:57:16 +0000 | [diff] [blame] | 3236 | int elements_needed) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3237 | { |
| 3238 | struct qeth_qdio_out_buffer *buffer; |
| 3239 | int start_index; |
| 3240 | int flush_count = 0; |
| 3241 | int do_pack = 0; |
| 3242 | int tmp; |
| 3243 | int rc = 0; |
| 3244 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3245 | /* spin until we get the queue ... */ |
| 3246 | while (atomic_cmpxchg(&queue->state, QETH_OUT_Q_UNLOCKED, |
| 3247 | QETH_OUT_Q_LOCKED) != QETH_OUT_Q_UNLOCKED); |
| 3248 | start_index = queue->next_buf_to_fill; |
| 3249 | buffer = &queue->bufs[queue->next_buf_to_fill]; |
| 3250 | /* |
| 3251 | * check if buffer is empty to make sure that we do not 'overtake' |
| 3252 | * ourselves and try to fill a buffer that is already primed |
| 3253 | */ |
| 3254 | if (atomic_read(&buffer->state) != QETH_QDIO_BUF_EMPTY) { |
| 3255 | atomic_set(&queue->state, QETH_OUT_Q_UNLOCKED); |
| 3256 | return -EBUSY; |
| 3257 | } |
| 3258 | /* check if we need to switch packing state of this queue */ |
| 3259 | qeth_switch_to_packing_if_needed(queue); |
| 3260 | if (queue->do_pack) { |
| 3261 | do_pack = 1; |
Frank Blaschka | 64ef895 | 2009-03-24 20:57:16 +0000 | [diff] [blame] | 3262 | /* does packet fit in current buffer? */ |
| 3263 | if ((QETH_MAX_BUFFER_ELEMENTS(card) - |
| 3264 | buffer->next_element_to_fill) < elements_needed) { |
| 3265 | /* ... no -> set state PRIMED */ |
| 3266 | atomic_set(&buffer->state, QETH_QDIO_BUF_PRIMED); |
| 3267 | flush_count++; |
| 3268 | queue->next_buf_to_fill = |
| 3269 | (queue->next_buf_to_fill + 1) % |
| 3270 | QDIO_MAX_BUFFERS_PER_Q; |
| 3271 | buffer = &queue->bufs[queue->next_buf_to_fill]; |
| 3272 | /* we did a step forward, so check buffer state |
| 3273 | * again */ |
| 3274 | if (atomic_read(&buffer->state) != |
| 3275 | QETH_QDIO_BUF_EMPTY) { |
| 3276 | qeth_flush_buffers(queue, start_index, |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 3277 | flush_count); |
Frank Blaschka | 64ef895 | 2009-03-24 20:57:16 +0000 | [diff] [blame] | 3278 | atomic_set(&queue->state, |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3279 | QETH_OUT_Q_UNLOCKED); |
Frank Blaschka | 64ef895 | 2009-03-24 20:57:16 +0000 | [diff] [blame] | 3280 | return -EBUSY; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3281 | } |
| 3282 | } |
| 3283 | } |
Frank Blaschka | 64ef895 | 2009-03-24 20:57:16 +0000 | [diff] [blame] | 3284 | tmp = qeth_fill_buffer(queue, buffer, skb, hdr, -1, 0); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3285 | queue->next_buf_to_fill = (queue->next_buf_to_fill + tmp) % |
| 3286 | QDIO_MAX_BUFFERS_PER_Q; |
| 3287 | flush_count += tmp; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3288 | if (flush_count) |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 3289 | qeth_flush_buffers(queue, start_index, flush_count); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3290 | else if (!atomic_read(&queue->set_pci_flags_count)) |
| 3291 | atomic_xchg(&queue->state, QETH_OUT_Q_LOCKED_FLUSH); |
| 3292 | /* |
| 3293 | * queue->state will go from LOCKED -> UNLOCKED or from |
| 3294 | * LOCKED_FLUSH -> LOCKED if output_handler wanted to 'notify' us |
| 3295 | * (switch packing state or flush buffer to get another pci flag out). |
| 3296 | * In that case we will enter this loop |
| 3297 | */ |
| 3298 | while (atomic_dec_return(&queue->state)) { |
| 3299 | flush_count = 0; |
| 3300 | start_index = queue->next_buf_to_fill; |
| 3301 | /* check if we can go back to non-packing state */ |
| 3302 | flush_count += qeth_switch_to_nonpacking_if_needed(queue); |
| 3303 | /* |
| 3304 | * check if we need to flush a packing buffer to get a pci |
| 3305 | * flag out on the queue |
| 3306 | */ |
| 3307 | if (!flush_count && !atomic_read(&queue->set_pci_flags_count)) |
| 3308 | flush_count += qeth_flush_buffers_on_no_pci(queue); |
| 3309 | if (flush_count) |
Jan Glauber | 779e6e1 | 2008-07-17 17:16:48 +0200 | [diff] [blame] | 3310 | qeth_flush_buffers(queue, start_index, flush_count); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3311 | } |
| 3312 | /* at this point the queue is UNLOCKED again */ |
| 3313 | if (queue->card->options.performance_stats && do_pack) |
| 3314 | queue->card->perf_stats.bufs_sent_pack += flush_count; |
| 3315 | |
| 3316 | return rc; |
| 3317 | } |
| 3318 | EXPORT_SYMBOL_GPL(qeth_do_send_packet); |
| 3319 | |
| 3320 | static int qeth_setadp_promisc_mode_cb(struct qeth_card *card, |
| 3321 | struct qeth_reply *reply, unsigned long data) |
| 3322 | { |
| 3323 | struct qeth_ipa_cmd *cmd; |
| 3324 | struct qeth_ipacmd_setadpparms *setparms; |
| 3325 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3326 | QETH_CARD_TEXT(card, 4, "prmadpcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3327 | |
| 3328 | cmd = (struct qeth_ipa_cmd *) data; |
| 3329 | setparms = &(cmd->data.setadapterparms); |
| 3330 | |
| 3331 | qeth_default_setadapterparms_cb(card, reply, (unsigned long)cmd); |
| 3332 | if (cmd->hdr.return_code) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3333 | QETH_CARD_TEXT_(card, 4, "prmrc%2.2x", cmd->hdr.return_code); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3334 | setparms->data.mode = SET_PROMISC_MODE_OFF; |
| 3335 | } |
| 3336 | card->info.promisc_mode = setparms->data.mode; |
| 3337 | return 0; |
| 3338 | } |
| 3339 | |
| 3340 | void qeth_setadp_promisc_mode(struct qeth_card *card) |
| 3341 | { |
| 3342 | enum qeth_ipa_promisc_modes mode; |
| 3343 | struct net_device *dev = card->dev; |
| 3344 | struct qeth_cmd_buffer *iob; |
| 3345 | struct qeth_ipa_cmd *cmd; |
| 3346 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3347 | QETH_CARD_TEXT(card, 4, "setprom"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3348 | |
| 3349 | if (((dev->flags & IFF_PROMISC) && |
| 3350 | (card->info.promisc_mode == SET_PROMISC_MODE_ON)) || |
| 3351 | (!(dev->flags & IFF_PROMISC) && |
| 3352 | (card->info.promisc_mode == SET_PROMISC_MODE_OFF))) |
| 3353 | return; |
| 3354 | mode = SET_PROMISC_MODE_OFF; |
| 3355 | if (dev->flags & IFF_PROMISC) |
| 3356 | mode = SET_PROMISC_MODE_ON; |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3357 | QETH_CARD_TEXT_(card, 4, "mode:%x", mode); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3358 | |
| 3359 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_PROMISC_MODE, |
| 3360 | sizeof(struct qeth_ipacmd_setadpparms)); |
| 3361 | cmd = (struct qeth_ipa_cmd *)(iob->data + IPA_PDU_HEADER_SIZE); |
| 3362 | cmd->data.setadapterparms.data.mode = mode; |
| 3363 | qeth_send_ipa_cmd(card, iob, qeth_setadp_promisc_mode_cb, NULL); |
| 3364 | } |
| 3365 | EXPORT_SYMBOL_GPL(qeth_setadp_promisc_mode); |
| 3366 | |
| 3367 | int qeth_change_mtu(struct net_device *dev, int new_mtu) |
| 3368 | { |
| 3369 | struct qeth_card *card; |
| 3370 | char dbf_text[15]; |
| 3371 | |
Heiko Carstens | 509e256 | 2008-07-26 02:24:10 -0700 | [diff] [blame] | 3372 | card = dev->ml_priv; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3373 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3374 | QETH_CARD_TEXT(card, 4, "chgmtu"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3375 | sprintf(dbf_text, "%8x", new_mtu); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3376 | QETH_CARD_TEXT(card, 4, dbf_text); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3377 | |
| 3378 | if (new_mtu < 64) |
| 3379 | return -EINVAL; |
| 3380 | if (new_mtu > 65535) |
| 3381 | return -EINVAL; |
| 3382 | if ((!qeth_is_supported(card, IPA_IP_FRAGMENTATION)) && |
| 3383 | (!qeth_mtu_is_valid(card, new_mtu))) |
| 3384 | return -EINVAL; |
| 3385 | dev->mtu = new_mtu; |
| 3386 | return 0; |
| 3387 | } |
| 3388 | EXPORT_SYMBOL_GPL(qeth_change_mtu); |
| 3389 | |
| 3390 | struct net_device_stats *qeth_get_stats(struct net_device *dev) |
| 3391 | { |
| 3392 | struct qeth_card *card; |
| 3393 | |
Heiko Carstens | 509e256 | 2008-07-26 02:24:10 -0700 | [diff] [blame] | 3394 | card = dev->ml_priv; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3395 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3396 | QETH_CARD_TEXT(card, 5, "getstat"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3397 | |
| 3398 | return &card->stats; |
| 3399 | } |
| 3400 | EXPORT_SYMBOL_GPL(qeth_get_stats); |
| 3401 | |
| 3402 | static int qeth_setadpparms_change_macaddr_cb(struct qeth_card *card, |
| 3403 | struct qeth_reply *reply, unsigned long data) |
| 3404 | { |
| 3405 | struct qeth_ipa_cmd *cmd; |
| 3406 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3407 | QETH_CARD_TEXT(card, 4, "chgmaccb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3408 | |
| 3409 | cmd = (struct qeth_ipa_cmd *) data; |
| 3410 | if (!card->options.layer2 || |
| 3411 | !(card->info.mac_bits & QETH_LAYER2_MAC_READ)) { |
| 3412 | memcpy(card->dev->dev_addr, |
| 3413 | &cmd->data.setadapterparms.data.change_addr.addr, |
| 3414 | OSA_ADDR_LEN); |
| 3415 | card->info.mac_bits |= QETH_LAYER2_MAC_READ; |
| 3416 | } |
| 3417 | qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd); |
| 3418 | return 0; |
| 3419 | } |
| 3420 | |
| 3421 | int qeth_setadpparms_change_macaddr(struct qeth_card *card) |
| 3422 | { |
| 3423 | int rc; |
| 3424 | struct qeth_cmd_buffer *iob; |
| 3425 | struct qeth_ipa_cmd *cmd; |
| 3426 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3427 | QETH_CARD_TEXT(card, 4, "chgmac"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3428 | |
| 3429 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_ALTER_MAC_ADDRESS, |
| 3430 | sizeof(struct qeth_ipacmd_setadpparms)); |
| 3431 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| 3432 | cmd->data.setadapterparms.data.change_addr.cmd = CHANGE_ADDR_READ_MAC; |
| 3433 | cmd->data.setadapterparms.data.change_addr.addr_size = OSA_ADDR_LEN; |
| 3434 | memcpy(&cmd->data.setadapterparms.data.change_addr.addr, |
| 3435 | card->dev->dev_addr, OSA_ADDR_LEN); |
| 3436 | rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_change_macaddr_cb, |
| 3437 | NULL); |
| 3438 | return rc; |
| 3439 | } |
| 3440 | EXPORT_SYMBOL_GPL(qeth_setadpparms_change_macaddr); |
| 3441 | |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 3442 | static int qeth_setadpparms_set_access_ctrl_cb(struct qeth_card *card, |
| 3443 | struct qeth_reply *reply, unsigned long data) |
| 3444 | { |
| 3445 | struct qeth_ipa_cmd *cmd; |
| 3446 | struct qeth_set_access_ctrl *access_ctrl_req; |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 3447 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3448 | QETH_CARD_TEXT(card, 4, "setaccb"); |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 3449 | |
| 3450 | cmd = (struct qeth_ipa_cmd *) data; |
| 3451 | access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl; |
| 3452 | QETH_DBF_TEXT_(SETUP, 2, "setaccb"); |
| 3453 | QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name); |
| 3454 | QETH_DBF_TEXT_(SETUP, 2, "rc=%d", |
| 3455 | cmd->data.setadapterparms.hdr.return_code); |
| 3456 | switch (cmd->data.setadapterparms.hdr.return_code) { |
| 3457 | case SET_ACCESS_CTRL_RC_SUCCESS: |
| 3458 | case SET_ACCESS_CTRL_RC_ALREADY_NOT_ISOLATED: |
| 3459 | case SET_ACCESS_CTRL_RC_ALREADY_ISOLATED: |
| 3460 | { |
| 3461 | card->options.isolation = access_ctrl_req->subcmd_code; |
| 3462 | if (card->options.isolation == ISOLATION_MODE_NONE) { |
| 3463 | dev_info(&card->gdev->dev, |
| 3464 | "QDIO data connection isolation is deactivated\n"); |
| 3465 | } else { |
| 3466 | dev_info(&card->gdev->dev, |
| 3467 | "QDIO data connection isolation is activated\n"); |
| 3468 | } |
| 3469 | QETH_DBF_MESSAGE(3, "OK:SET_ACCESS_CTRL(%s, %d)==%d\n", |
| 3470 | card->gdev->dev.kobj.name, |
| 3471 | access_ctrl_req->subcmd_code, |
| 3472 | cmd->data.setadapterparms.hdr.return_code); |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 3473 | break; |
| 3474 | } |
| 3475 | case SET_ACCESS_CTRL_RC_NOT_SUPPORTED: |
| 3476 | { |
| 3477 | QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_CTRL(%s,%d)==%d\n", |
| 3478 | card->gdev->dev.kobj.name, |
| 3479 | access_ctrl_req->subcmd_code, |
| 3480 | cmd->data.setadapterparms.hdr.return_code); |
| 3481 | dev_err(&card->gdev->dev, "Adapter does not " |
| 3482 | "support QDIO data connection isolation\n"); |
| 3483 | |
| 3484 | /* ensure isolation mode is "none" */ |
| 3485 | card->options.isolation = ISOLATION_MODE_NONE; |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 3486 | break; |
| 3487 | } |
| 3488 | case SET_ACCESS_CTRL_RC_NONE_SHARED_ADAPTER: |
| 3489 | { |
| 3490 | QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d\n", |
| 3491 | card->gdev->dev.kobj.name, |
| 3492 | access_ctrl_req->subcmd_code, |
| 3493 | cmd->data.setadapterparms.hdr.return_code); |
| 3494 | dev_err(&card->gdev->dev, |
| 3495 | "Adapter is dedicated. " |
| 3496 | "QDIO data connection isolation not supported\n"); |
| 3497 | |
| 3498 | /* ensure isolation mode is "none" */ |
| 3499 | card->options.isolation = ISOLATION_MODE_NONE; |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 3500 | break; |
| 3501 | } |
| 3502 | case SET_ACCESS_CTRL_RC_ACTIVE_CHECKSUM_OFF: |
| 3503 | { |
| 3504 | QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d\n", |
| 3505 | card->gdev->dev.kobj.name, |
| 3506 | access_ctrl_req->subcmd_code, |
| 3507 | cmd->data.setadapterparms.hdr.return_code); |
| 3508 | dev_err(&card->gdev->dev, |
| 3509 | "TSO does not permit QDIO data connection isolation\n"); |
| 3510 | |
| 3511 | /* ensure isolation mode is "none" */ |
| 3512 | card->options.isolation = ISOLATION_MODE_NONE; |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 3513 | break; |
| 3514 | } |
| 3515 | default: |
| 3516 | { |
| 3517 | /* this should never happen */ |
| 3518 | QETH_DBF_MESSAGE(3, "ERR:SET_ACCESS_MODE(%s,%d)==%d" |
| 3519 | "==UNKNOWN\n", |
| 3520 | card->gdev->dev.kobj.name, |
| 3521 | access_ctrl_req->subcmd_code, |
| 3522 | cmd->data.setadapterparms.hdr.return_code); |
| 3523 | |
| 3524 | /* ensure isolation mode is "none" */ |
| 3525 | card->options.isolation = ISOLATION_MODE_NONE; |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 3526 | break; |
| 3527 | } |
| 3528 | } |
| 3529 | qeth_default_setadapterparms_cb(card, reply, (unsigned long) cmd); |
Ursula Braun | bbb822a | 2010-07-22 23:15:08 +0000 | [diff] [blame] | 3530 | return 0; |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 3531 | } |
| 3532 | |
| 3533 | static int qeth_setadpparms_set_access_ctrl(struct qeth_card *card, |
| 3534 | enum qeth_ipa_isolation_modes isolation) |
| 3535 | { |
| 3536 | int rc; |
| 3537 | struct qeth_cmd_buffer *iob; |
| 3538 | struct qeth_ipa_cmd *cmd; |
| 3539 | struct qeth_set_access_ctrl *access_ctrl_req; |
| 3540 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3541 | QETH_CARD_TEXT(card, 4, "setacctl"); |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 3542 | |
| 3543 | QETH_DBF_TEXT_(SETUP, 2, "setacctl"); |
| 3544 | QETH_DBF_TEXT_(SETUP, 2, "%s", card->gdev->dev.kobj.name); |
| 3545 | |
| 3546 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_ACCESS_CONTROL, |
| 3547 | sizeof(struct qeth_ipacmd_setadpparms_hdr) + |
| 3548 | sizeof(struct qeth_set_access_ctrl)); |
| 3549 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| 3550 | access_ctrl_req = &cmd->data.setadapterparms.data.set_access_ctrl; |
| 3551 | access_ctrl_req->subcmd_code = isolation; |
| 3552 | |
| 3553 | rc = qeth_send_ipa_cmd(card, iob, qeth_setadpparms_set_access_ctrl_cb, |
| 3554 | NULL); |
| 3555 | QETH_DBF_TEXT_(SETUP, 2, "rc=%d", rc); |
| 3556 | return rc; |
| 3557 | } |
| 3558 | |
| 3559 | int qeth_set_access_ctrl_online(struct qeth_card *card) |
| 3560 | { |
| 3561 | int rc = 0; |
| 3562 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3563 | QETH_CARD_TEXT(card, 4, "setactlo"); |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 3564 | |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 3565 | if ((card->info.type == QETH_CARD_TYPE_OSD || |
| 3566 | card->info.type == QETH_CARD_TYPE_OSX) && |
| 3567 | qeth_adp_supported(card, IPA_SETADP_SET_ACCESS_CONTROL)) { |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 3568 | rc = qeth_setadpparms_set_access_ctrl(card, |
| 3569 | card->options.isolation); |
| 3570 | if (rc) { |
| 3571 | QETH_DBF_MESSAGE(3, |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 3572 | "IPA(SET_ACCESS_CTRL,%s,%d) sent failed\n", |
Einar Lueck | d64ecc2 | 2009-11-12 00:11:41 +0000 | [diff] [blame] | 3573 | card->gdev->dev.kobj.name, |
| 3574 | rc); |
| 3575 | } |
| 3576 | } else if (card->options.isolation != ISOLATION_MODE_NONE) { |
| 3577 | card->options.isolation = ISOLATION_MODE_NONE; |
| 3578 | |
| 3579 | dev_err(&card->gdev->dev, "Adapter does not " |
| 3580 | "support QDIO data connection isolation\n"); |
| 3581 | rc = -EOPNOTSUPP; |
| 3582 | } |
| 3583 | return rc; |
| 3584 | } |
| 3585 | EXPORT_SYMBOL_GPL(qeth_set_access_ctrl_online); |
| 3586 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3587 | void qeth_tx_timeout(struct net_device *dev) |
| 3588 | { |
| 3589 | struct qeth_card *card; |
| 3590 | |
Heiko Carstens | 509e256 | 2008-07-26 02:24:10 -0700 | [diff] [blame] | 3591 | card = dev->ml_priv; |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3592 | QETH_CARD_TEXT(card, 4, "txtimeo"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3593 | card->stats.tx_errors++; |
| 3594 | qeth_schedule_recovery(card); |
| 3595 | } |
| 3596 | EXPORT_SYMBOL_GPL(qeth_tx_timeout); |
| 3597 | |
| 3598 | int qeth_mdio_read(struct net_device *dev, int phy_id, int regnum) |
| 3599 | { |
Heiko Carstens | 509e256 | 2008-07-26 02:24:10 -0700 | [diff] [blame] | 3600 | struct qeth_card *card = dev->ml_priv; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3601 | int rc = 0; |
| 3602 | |
| 3603 | switch (regnum) { |
| 3604 | case MII_BMCR: /* Basic mode control register */ |
| 3605 | rc = BMCR_FULLDPLX; |
| 3606 | if ((card->info.link_type != QETH_LINK_TYPE_GBIT_ETH) && |
| 3607 | (card->info.link_type != QETH_LINK_TYPE_OSN) && |
| 3608 | (card->info.link_type != QETH_LINK_TYPE_10GBIT_ETH)) |
| 3609 | rc |= BMCR_SPEED100; |
| 3610 | break; |
| 3611 | case MII_BMSR: /* Basic mode status register */ |
| 3612 | rc = BMSR_ERCAP | BMSR_ANEGCOMPLETE | BMSR_LSTATUS | |
| 3613 | BMSR_10HALF | BMSR_10FULL | BMSR_100HALF | BMSR_100FULL | |
| 3614 | BMSR_100BASE4; |
| 3615 | break; |
| 3616 | case MII_PHYSID1: /* PHYS ID 1 */ |
| 3617 | rc = (dev->dev_addr[0] << 16) | (dev->dev_addr[1] << 8) | |
| 3618 | dev->dev_addr[2]; |
| 3619 | rc = (rc >> 5) & 0xFFFF; |
| 3620 | break; |
| 3621 | case MII_PHYSID2: /* PHYS ID 2 */ |
| 3622 | rc = (dev->dev_addr[2] << 10) & 0xFFFF; |
| 3623 | break; |
| 3624 | case MII_ADVERTISE: /* Advertisement control reg */ |
| 3625 | rc = ADVERTISE_ALL; |
| 3626 | break; |
| 3627 | case MII_LPA: /* Link partner ability reg */ |
| 3628 | rc = LPA_10HALF | LPA_10FULL | LPA_100HALF | LPA_100FULL | |
| 3629 | LPA_100BASE4 | LPA_LPACK; |
| 3630 | break; |
| 3631 | case MII_EXPANSION: /* Expansion register */ |
| 3632 | break; |
| 3633 | case MII_DCOUNTER: /* disconnect counter */ |
| 3634 | break; |
| 3635 | case MII_FCSCOUNTER: /* false carrier counter */ |
| 3636 | break; |
| 3637 | case MII_NWAYTEST: /* N-way auto-neg test register */ |
| 3638 | break; |
| 3639 | case MII_RERRCOUNTER: /* rx error counter */ |
| 3640 | rc = card->stats.rx_errors; |
| 3641 | break; |
| 3642 | case MII_SREVISION: /* silicon revision */ |
| 3643 | break; |
| 3644 | case MII_RESV1: /* reserved 1 */ |
| 3645 | break; |
| 3646 | case MII_LBRERROR: /* loopback, rx, bypass error */ |
| 3647 | break; |
| 3648 | case MII_PHYADDR: /* physical address */ |
| 3649 | break; |
| 3650 | case MII_RESV2: /* reserved 2 */ |
| 3651 | break; |
| 3652 | case MII_TPISTATUS: /* TPI status for 10mbps */ |
| 3653 | break; |
| 3654 | case MII_NCONFIG: /* network interface config */ |
| 3655 | break; |
| 3656 | default: |
| 3657 | break; |
| 3658 | } |
| 3659 | return rc; |
| 3660 | } |
| 3661 | EXPORT_SYMBOL_GPL(qeth_mdio_read); |
| 3662 | |
| 3663 | static int qeth_send_ipa_snmp_cmd(struct qeth_card *card, |
| 3664 | struct qeth_cmd_buffer *iob, int len, |
| 3665 | int (*reply_cb)(struct qeth_card *, struct qeth_reply *, |
| 3666 | unsigned long), |
| 3667 | void *reply_param) |
| 3668 | { |
| 3669 | u16 s1, s2; |
| 3670 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3671 | QETH_CARD_TEXT(card, 4, "sendsnmp"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3672 | |
| 3673 | memcpy(iob->data, IPA_PDU_HEADER, IPA_PDU_HEADER_SIZE); |
| 3674 | memcpy(QETH_IPA_CMD_DEST_ADDR(iob->data), |
| 3675 | &card->token.ulp_connection_r, QETH_MPC_TOKEN_LENGTH); |
| 3676 | /* adjust PDU length fields in IPA_PDU_HEADER */ |
| 3677 | s1 = (u32) IPA_PDU_HEADER_SIZE + len; |
| 3678 | s2 = (u32) len; |
| 3679 | memcpy(QETH_IPA_PDU_LEN_TOTAL(iob->data), &s1, 2); |
| 3680 | memcpy(QETH_IPA_PDU_LEN_PDU1(iob->data), &s2, 2); |
| 3681 | memcpy(QETH_IPA_PDU_LEN_PDU2(iob->data), &s2, 2); |
| 3682 | memcpy(QETH_IPA_PDU_LEN_PDU3(iob->data), &s2, 2); |
| 3683 | return qeth_send_control_data(card, IPA_PDU_HEADER_SIZE + len, iob, |
| 3684 | reply_cb, reply_param); |
| 3685 | } |
| 3686 | |
| 3687 | static int qeth_snmp_command_cb(struct qeth_card *card, |
| 3688 | struct qeth_reply *reply, unsigned long sdata) |
| 3689 | { |
| 3690 | struct qeth_ipa_cmd *cmd; |
| 3691 | struct qeth_arp_query_info *qinfo; |
| 3692 | struct qeth_snmp_cmd *snmp; |
| 3693 | unsigned char *data; |
| 3694 | __u16 data_len; |
| 3695 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3696 | QETH_CARD_TEXT(card, 3, "snpcmdcb"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3697 | |
| 3698 | cmd = (struct qeth_ipa_cmd *) sdata; |
| 3699 | data = (unsigned char *)((char *)cmd - reply->offset); |
| 3700 | qinfo = (struct qeth_arp_query_info *) reply->param; |
| 3701 | snmp = &cmd->data.setadapterparms.data.snmp; |
| 3702 | |
| 3703 | if (cmd->hdr.return_code) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3704 | QETH_CARD_TEXT_(card, 4, "scer1%i", cmd->hdr.return_code); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3705 | return 0; |
| 3706 | } |
| 3707 | if (cmd->data.setadapterparms.hdr.return_code) { |
| 3708 | cmd->hdr.return_code = |
| 3709 | cmd->data.setadapterparms.hdr.return_code; |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3710 | QETH_CARD_TEXT_(card, 4, "scer2%i", cmd->hdr.return_code); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3711 | return 0; |
| 3712 | } |
| 3713 | data_len = *((__u16 *)QETH_IPA_PDU_LEN_PDU1(data)); |
| 3714 | if (cmd->data.setadapterparms.hdr.seq_no == 1) |
| 3715 | data_len -= (__u16)((char *)&snmp->data - (char *)cmd); |
| 3716 | else |
| 3717 | data_len -= (__u16)((char *)&snmp->request - (char *)cmd); |
| 3718 | |
| 3719 | /* check if there is enough room in userspace */ |
| 3720 | if ((qinfo->udata_len - qinfo->udata_offset) < data_len) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3721 | QETH_CARD_TEXT_(card, 4, "scer3%i", -ENOMEM); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3722 | cmd->hdr.return_code = -ENOMEM; |
| 3723 | return 0; |
| 3724 | } |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3725 | QETH_CARD_TEXT_(card, 4, "snore%i", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3726 | cmd->data.setadapterparms.hdr.used_total); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3727 | QETH_CARD_TEXT_(card, 4, "sseqn%i", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3728 | cmd->data.setadapterparms.hdr.seq_no); |
| 3729 | /*copy entries to user buffer*/ |
| 3730 | if (cmd->data.setadapterparms.hdr.seq_no == 1) { |
| 3731 | memcpy(qinfo->udata + qinfo->udata_offset, |
| 3732 | (char *)snmp, |
| 3733 | data_len + offsetof(struct qeth_snmp_cmd, data)); |
| 3734 | qinfo->udata_offset += offsetof(struct qeth_snmp_cmd, data); |
| 3735 | } else { |
| 3736 | memcpy(qinfo->udata + qinfo->udata_offset, |
| 3737 | (char *)&snmp->request, data_len); |
| 3738 | } |
| 3739 | qinfo->udata_offset += data_len; |
| 3740 | /* check if all replies received ... */ |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3741 | QETH_CARD_TEXT_(card, 4, "srtot%i", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3742 | cmd->data.setadapterparms.hdr.used_total); |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3743 | QETH_CARD_TEXT_(card, 4, "srseq%i", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3744 | cmd->data.setadapterparms.hdr.seq_no); |
| 3745 | if (cmd->data.setadapterparms.hdr.seq_no < |
| 3746 | cmd->data.setadapterparms.hdr.used_total) |
| 3747 | return 1; |
| 3748 | return 0; |
| 3749 | } |
| 3750 | |
| 3751 | int qeth_snmp_command(struct qeth_card *card, char __user *udata) |
| 3752 | { |
| 3753 | struct qeth_cmd_buffer *iob; |
| 3754 | struct qeth_ipa_cmd *cmd; |
| 3755 | struct qeth_snmp_ureq *ureq; |
| 3756 | int req_len; |
| 3757 | struct qeth_arp_query_info qinfo = {0, }; |
| 3758 | int rc = 0; |
| 3759 | |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3760 | QETH_CARD_TEXT(card, 3, "snmpcmd"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3761 | |
| 3762 | if (card->info.guestlan) |
| 3763 | return -EOPNOTSUPP; |
| 3764 | |
| 3765 | if ((!qeth_adp_supported(card, IPA_SETADP_SET_SNMP_CONTROL)) && |
| 3766 | (!card->options.layer2)) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3767 | return -EOPNOTSUPP; |
| 3768 | } |
| 3769 | /* skip 4 bytes (data_len struct member) to get req_len */ |
| 3770 | if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int))) |
| 3771 | return -EFAULT; |
Julia Lawall | 4986f3f | 2010-07-22 23:15:09 +0000 | [diff] [blame] | 3772 | ureq = memdup_user(udata, req_len + sizeof(struct qeth_snmp_ureq_hdr)); |
| 3773 | if (IS_ERR(ureq)) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 3774 | QETH_CARD_TEXT(card, 2, "snmpnome"); |
Julia Lawall | 4986f3f | 2010-07-22 23:15:09 +0000 | [diff] [blame] | 3775 | return PTR_ERR(ureq); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3776 | } |
| 3777 | qinfo.udata_len = ureq->hdr.data_len; |
| 3778 | qinfo.udata = kzalloc(qinfo.udata_len, GFP_KERNEL); |
| 3779 | if (!qinfo.udata) { |
| 3780 | kfree(ureq); |
| 3781 | return -ENOMEM; |
| 3782 | } |
| 3783 | qinfo.udata_offset = sizeof(struct qeth_snmp_ureq_hdr); |
| 3784 | |
| 3785 | iob = qeth_get_adapter_cmd(card, IPA_SETADP_SET_SNMP_CONTROL, |
| 3786 | QETH_SNMP_SETADP_CMDLENGTH + req_len); |
| 3787 | cmd = (struct qeth_ipa_cmd *)(iob->data+IPA_PDU_HEADER_SIZE); |
| 3788 | memcpy(&cmd->data.setadapterparms.data.snmp, &ureq->cmd, req_len); |
| 3789 | rc = qeth_send_ipa_snmp_cmd(card, iob, QETH_SETADP_BASE_LEN + req_len, |
| 3790 | qeth_snmp_command_cb, (void *)&qinfo); |
| 3791 | if (rc) |
Frank Blaschka | 14cc21b | 2008-06-06 12:37:46 +0200 | [diff] [blame] | 3792 | QETH_DBF_MESSAGE(2, "SNMP command failed on %s: (0x%x)\n", |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3793 | QETH_CARD_IFNAME(card), rc); |
| 3794 | else { |
| 3795 | if (copy_to_user(udata, qinfo.udata, qinfo.udata_len)) |
| 3796 | rc = -EFAULT; |
| 3797 | } |
| 3798 | |
| 3799 | kfree(ureq); |
| 3800 | kfree(qinfo.udata); |
| 3801 | return rc; |
| 3802 | } |
| 3803 | EXPORT_SYMBOL_GPL(qeth_snmp_command); |
| 3804 | |
| 3805 | static inline int qeth_get_qdio_q_format(struct qeth_card *card) |
| 3806 | { |
| 3807 | switch (card->info.type) { |
| 3808 | case QETH_CARD_TYPE_IQD: |
| 3809 | return 2; |
| 3810 | default: |
| 3811 | return 0; |
| 3812 | } |
| 3813 | } |
| 3814 | |
| 3815 | static int qeth_qdio_establish(struct qeth_card *card) |
| 3816 | { |
| 3817 | struct qdio_initialize init_data; |
| 3818 | char *qib_param_field; |
| 3819 | struct qdio_buffer **in_sbal_ptrs; |
| 3820 | struct qdio_buffer **out_sbal_ptrs; |
| 3821 | int i, j, k; |
| 3822 | int rc = 0; |
| 3823 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3824 | QETH_DBF_TEXT(SETUP, 2, "qdioest"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3825 | |
| 3826 | qib_param_field = kzalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(char), |
| 3827 | GFP_KERNEL); |
| 3828 | if (!qib_param_field) |
| 3829 | return -ENOMEM; |
| 3830 | |
| 3831 | qeth_create_qib_param_field(card, qib_param_field); |
| 3832 | qeth_create_qib_param_field_blkt(card, qib_param_field); |
| 3833 | |
| 3834 | in_sbal_ptrs = kmalloc(QDIO_MAX_BUFFERS_PER_Q * sizeof(void *), |
| 3835 | GFP_KERNEL); |
| 3836 | if (!in_sbal_ptrs) { |
| 3837 | kfree(qib_param_field); |
| 3838 | return -ENOMEM; |
| 3839 | } |
| 3840 | for (i = 0; i < QDIO_MAX_BUFFERS_PER_Q; ++i) |
| 3841 | in_sbal_ptrs[i] = (struct qdio_buffer *) |
| 3842 | virt_to_phys(card->qdio.in_q->bufs[i].buffer); |
| 3843 | |
| 3844 | out_sbal_ptrs = |
| 3845 | kmalloc(card->qdio.no_out_queues * QDIO_MAX_BUFFERS_PER_Q * |
| 3846 | sizeof(void *), GFP_KERNEL); |
| 3847 | if (!out_sbal_ptrs) { |
| 3848 | kfree(in_sbal_ptrs); |
| 3849 | kfree(qib_param_field); |
| 3850 | return -ENOMEM; |
| 3851 | } |
| 3852 | for (i = 0, k = 0; i < card->qdio.no_out_queues; ++i) |
| 3853 | for (j = 0; j < QDIO_MAX_BUFFERS_PER_Q; ++j, ++k) { |
| 3854 | out_sbal_ptrs[k] = (struct qdio_buffer *)virt_to_phys( |
| 3855 | card->qdio.out_qs[i]->bufs[j].buffer); |
| 3856 | } |
| 3857 | |
| 3858 | memset(&init_data, 0, sizeof(struct qdio_initialize)); |
| 3859 | init_data.cdev = CARD_DDEV(card); |
| 3860 | init_data.q_format = qeth_get_qdio_q_format(card); |
| 3861 | init_data.qib_param_field_format = 0; |
| 3862 | init_data.qib_param_field = qib_param_field; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3863 | init_data.no_input_qs = 1; |
| 3864 | init_data.no_output_qs = card->qdio.no_out_queues; |
| 3865 | init_data.input_handler = card->discipline.input_handler; |
| 3866 | init_data.output_handler = card->discipline.output_handler; |
Frank Blaschka | a1c3ed4 | 2010-09-07 21:14:42 +0000 | [diff] [blame] | 3867 | init_data.queue_start_poll = card->discipline.start_poll; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3868 | init_data.int_parm = (unsigned long) card; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3869 | init_data.input_sbal_addr_array = (void **) in_sbal_ptrs; |
| 3870 | init_data.output_sbal_addr_array = (void **) out_sbal_ptrs; |
| 3871 | |
| 3872 | if (atomic_cmpxchg(&card->qdio.state, QETH_QDIO_ALLOCATED, |
| 3873 | QETH_QDIO_ESTABLISHED) == QETH_QDIO_ALLOCATED) { |
Jan Glauber | cc961d4 | 2010-05-17 10:00:19 +0200 | [diff] [blame] | 3874 | rc = qdio_allocate(&init_data); |
| 3875 | if (rc) { |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3876 | atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); |
Jan Glauber | cc961d4 | 2010-05-17 10:00:19 +0200 | [diff] [blame] | 3877 | goto out; |
| 3878 | } |
| 3879 | rc = qdio_establish(&init_data); |
| 3880 | if (rc) { |
| 3881 | atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED); |
| 3882 | qdio_free(CARD_DDEV(card)); |
| 3883 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3884 | } |
Jan Glauber | cc961d4 | 2010-05-17 10:00:19 +0200 | [diff] [blame] | 3885 | out: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3886 | kfree(out_sbal_ptrs); |
| 3887 | kfree(in_sbal_ptrs); |
| 3888 | kfree(qib_param_field); |
| 3889 | return rc; |
| 3890 | } |
| 3891 | |
| 3892 | static void qeth_core_free_card(struct qeth_card *card) |
| 3893 | { |
| 3894 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3895 | QETH_DBF_TEXT(SETUP, 2, "freecrd"); |
| 3896 | QETH_DBF_HEX(SETUP, 2, &card, sizeof(void *)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3897 | qeth_clean_channel(&card->read); |
| 3898 | qeth_clean_channel(&card->write); |
| 3899 | if (card->dev) |
| 3900 | free_netdev(card->dev); |
| 3901 | kfree(card->ip_tbd_list); |
| 3902 | qeth_free_qdio_buffers(card); |
Martin Schwidefsky | 6bcac50 | 2008-12-25 13:38:49 +0100 | [diff] [blame] | 3903 | unregister_service_level(&card->qeth_service_level); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3904 | kfree(card); |
| 3905 | } |
| 3906 | |
| 3907 | static struct ccw_device_id qeth_ids[] = { |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 3908 | {CCW_DEVICE_DEVTYPE(0x1731, 0x01, 0x1732, 0x01), |
| 3909 | .driver_info = QETH_CARD_TYPE_OSD}, |
| 3910 | {CCW_DEVICE_DEVTYPE(0x1731, 0x05, 0x1732, 0x05), |
| 3911 | .driver_info = QETH_CARD_TYPE_IQD}, |
| 3912 | {CCW_DEVICE_DEVTYPE(0x1731, 0x06, 0x1732, 0x06), |
| 3913 | .driver_info = QETH_CARD_TYPE_OSN}, |
| 3914 | {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x03), |
| 3915 | .driver_info = QETH_CARD_TYPE_OSM}, |
| 3916 | {CCW_DEVICE_DEVTYPE(0x1731, 0x02, 0x1732, 0x02), |
| 3917 | .driver_info = QETH_CARD_TYPE_OSX}, |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3918 | {}, |
| 3919 | }; |
| 3920 | MODULE_DEVICE_TABLE(ccw, qeth_ids); |
| 3921 | |
| 3922 | static struct ccw_driver qeth_ccw_driver = { |
| 3923 | .name = "qeth", |
| 3924 | .ids = qeth_ids, |
| 3925 | .probe = ccwgroup_probe_ccwdev, |
| 3926 | .remove = ccwgroup_remove_ccwdev, |
| 3927 | }; |
| 3928 | |
| 3929 | static int qeth_core_driver_group(const char *buf, struct device *root_dev, |
| 3930 | unsigned long driver_id) |
| 3931 | { |
Ursula Braun | 022b660 | 2008-04-24 10:15:20 +0200 | [diff] [blame] | 3932 | return ccwgroup_create_from_string(root_dev, driver_id, |
| 3933 | &qeth_ccw_driver, 3, buf); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3934 | } |
| 3935 | |
| 3936 | int qeth_core_hardsetup_card(struct qeth_card *card) |
| 3937 | { |
Ursula Braun | aa90922 | 2009-11-12 00:11:43 +0000 | [diff] [blame] | 3938 | int retries = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3939 | int rc; |
| 3940 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3941 | QETH_DBF_TEXT(SETUP, 2, "hrdsetup"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3942 | atomic_set(&card->force_alloc_skb, 0); |
| 3943 | retry: |
Ursula Braun | aa90922 | 2009-11-12 00:11:43 +0000 | [diff] [blame] | 3944 | if (retries) |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 3945 | QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n", |
| 3946 | dev_name(&card->gdev->dev)); |
Ursula Braun | aa90922 | 2009-11-12 00:11:43 +0000 | [diff] [blame] | 3947 | ccw_device_set_offline(CARD_DDEV(card)); |
| 3948 | ccw_device_set_offline(CARD_WDEV(card)); |
| 3949 | ccw_device_set_offline(CARD_RDEV(card)); |
| 3950 | rc = ccw_device_set_online(CARD_RDEV(card)); |
| 3951 | if (rc) |
| 3952 | goto retriable; |
| 3953 | rc = ccw_device_set_online(CARD_WDEV(card)); |
| 3954 | if (rc) |
| 3955 | goto retriable; |
| 3956 | rc = ccw_device_set_online(CARD_DDEV(card)); |
| 3957 | if (rc) |
| 3958 | goto retriable; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3959 | 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] | 3960 | retriable: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3961 | if (rc == -ERESTARTSYS) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3962 | QETH_DBF_TEXT(SETUP, 2, "break1"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3963 | return rc; |
| 3964 | } else if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3965 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc); |
Ursula Braun | aa90922 | 2009-11-12 00:11:43 +0000 | [diff] [blame] | 3966 | if (++retries > 3) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3967 | goto out; |
| 3968 | else |
| 3969 | goto retry; |
| 3970 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3971 | qeth_init_tokens(card); |
| 3972 | qeth_init_func_level(card); |
| 3973 | rc = qeth_idx_activate_channel(&card->read, qeth_idx_read_cb); |
| 3974 | if (rc == -ERESTARTSYS) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3975 | QETH_DBF_TEXT(SETUP, 2, "break2"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3976 | return rc; |
| 3977 | } else if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3978 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3979 | if (--retries < 0) |
| 3980 | goto out; |
| 3981 | else |
| 3982 | goto retry; |
| 3983 | } |
| 3984 | rc = qeth_idx_activate_channel(&card->write, qeth_idx_write_cb); |
| 3985 | if (rc == -ERESTARTSYS) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3986 | QETH_DBF_TEXT(SETUP, 2, "break3"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3987 | return rc; |
| 3988 | } else if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3989 | QETH_DBF_TEXT_(SETUP, 2, "4err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3990 | if (--retries < 0) |
| 3991 | goto out; |
| 3992 | else |
| 3993 | goto retry; |
| 3994 | } |
Ursula Braun | 908abbb | 2010-07-22 23:15:06 +0000 | [diff] [blame] | 3995 | card->read_or_write_problem = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3996 | rc = qeth_mpc_initialize(card); |
| 3997 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 3998 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 3999 | goto out; |
| 4000 | } |
| 4001 | return 0; |
| 4002 | out: |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 4003 | dev_warn(&card->gdev->dev, "The qeth device driver failed to recover " |
| 4004 | "an error on the device\n"); |
| 4005 | QETH_DBF_MESSAGE(2, "%s Initialization in hardsetup failed! rc=%d\n", |
| 4006 | dev_name(&card->gdev->dev), rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4007 | return rc; |
| 4008 | } |
| 4009 | EXPORT_SYMBOL_GPL(qeth_core_hardsetup_card); |
| 4010 | |
| 4011 | static inline int qeth_create_skb_frag(struct qdio_buffer_element *element, |
| 4012 | struct sk_buff **pskb, int offset, int *pfrag, int data_len) |
| 4013 | { |
| 4014 | struct page *page = virt_to_page(element->addr); |
| 4015 | if (*pskb == NULL) { |
| 4016 | /* the upper protocol layers assume that there is data in the |
| 4017 | * skb itself. Copy a small amount (64 bytes) to make them |
| 4018 | * happy. */ |
| 4019 | *pskb = dev_alloc_skb(64 + ETH_HLEN); |
| 4020 | if (!(*pskb)) |
| 4021 | return -ENOMEM; |
| 4022 | skb_reserve(*pskb, ETH_HLEN); |
| 4023 | if (data_len <= 64) { |
| 4024 | memcpy(skb_put(*pskb, data_len), element->addr + offset, |
| 4025 | data_len); |
| 4026 | } else { |
| 4027 | get_page(page); |
| 4028 | memcpy(skb_put(*pskb, 64), element->addr + offset, 64); |
| 4029 | skb_fill_page_desc(*pskb, *pfrag, page, offset + 64, |
| 4030 | data_len - 64); |
| 4031 | (*pskb)->data_len += data_len - 64; |
| 4032 | (*pskb)->len += data_len - 64; |
| 4033 | (*pskb)->truesize += data_len - 64; |
| 4034 | (*pfrag)++; |
| 4035 | } |
| 4036 | } else { |
| 4037 | get_page(page); |
| 4038 | skb_fill_page_desc(*pskb, *pfrag, page, offset, data_len); |
| 4039 | (*pskb)->data_len += data_len; |
| 4040 | (*pskb)->len += data_len; |
| 4041 | (*pskb)->truesize += data_len; |
| 4042 | (*pfrag)++; |
| 4043 | } |
| 4044 | return 0; |
| 4045 | } |
| 4046 | |
| 4047 | struct sk_buff *qeth_core_get_next_skb(struct qeth_card *card, |
| 4048 | struct qdio_buffer *buffer, |
| 4049 | struct qdio_buffer_element **__element, int *__offset, |
| 4050 | struct qeth_hdr **hdr) |
| 4051 | { |
| 4052 | struct qdio_buffer_element *element = *__element; |
| 4053 | int offset = *__offset; |
| 4054 | struct sk_buff *skb = NULL; |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 4055 | int skb_len = 0; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4056 | void *data_ptr; |
| 4057 | int data_len; |
| 4058 | int headroom = 0; |
| 4059 | int use_rx_sg = 0; |
| 4060 | int frag = 0; |
| 4061 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4062 | /* qeth_hdr must not cross element boundaries */ |
| 4063 | if (element->length < offset + sizeof(struct qeth_hdr)) { |
| 4064 | if (qeth_is_last_sbale(element)) |
| 4065 | return NULL; |
| 4066 | element++; |
| 4067 | offset = 0; |
| 4068 | if (element->length < sizeof(struct qeth_hdr)) |
| 4069 | return NULL; |
| 4070 | } |
| 4071 | *hdr = element->addr + offset; |
| 4072 | |
| 4073 | offset += sizeof(struct qeth_hdr); |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 4074 | switch ((*hdr)->hdr.l2.id) { |
| 4075 | case QETH_HEADER_TYPE_LAYER2: |
| 4076 | skb_len = (*hdr)->hdr.l2.pkt_length; |
| 4077 | break; |
| 4078 | case QETH_HEADER_TYPE_LAYER3: |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4079 | skb_len = (*hdr)->hdr.l3.length; |
Frank Blaschka | b403e68 | 2008-04-01 10:26:59 +0200 | [diff] [blame] | 4080 | if ((card->info.link_type == QETH_LINK_TYPE_LANE_TR) || |
| 4081 | (card->info.link_type == QETH_LINK_TYPE_HSTR)) |
| 4082 | headroom = TR_HLEN; |
| 4083 | else |
| 4084 | headroom = ETH_HLEN; |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 4085 | break; |
| 4086 | case QETH_HEADER_TYPE_OSN: |
| 4087 | skb_len = (*hdr)->hdr.osn.pdu_length; |
| 4088 | headroom = sizeof(struct qeth_hdr); |
| 4089 | break; |
| 4090 | default: |
| 4091 | break; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4092 | } |
| 4093 | |
| 4094 | if (!skb_len) |
| 4095 | return NULL; |
| 4096 | |
| 4097 | if ((skb_len >= card->options.rx_sg_cb) && |
| 4098 | (!(card->info.type == QETH_CARD_TYPE_OSN)) && |
| 4099 | (!atomic_read(&card->force_alloc_skb))) { |
| 4100 | use_rx_sg = 1; |
| 4101 | } else { |
| 4102 | skb = dev_alloc_skb(skb_len + headroom); |
| 4103 | if (!skb) |
| 4104 | goto no_mem; |
| 4105 | if (headroom) |
| 4106 | skb_reserve(skb, headroom); |
| 4107 | } |
| 4108 | |
| 4109 | data_ptr = element->addr + offset; |
| 4110 | while (skb_len) { |
| 4111 | data_len = min(skb_len, (int)(element->length - offset)); |
| 4112 | if (data_len) { |
| 4113 | if (use_rx_sg) { |
| 4114 | if (qeth_create_skb_frag(element, &skb, offset, |
| 4115 | &frag, data_len)) |
| 4116 | goto no_mem; |
| 4117 | } else { |
| 4118 | memcpy(skb_put(skb, data_len), data_ptr, |
| 4119 | data_len); |
| 4120 | } |
| 4121 | } |
| 4122 | skb_len -= data_len; |
| 4123 | if (skb_len) { |
| 4124 | if (qeth_is_last_sbale(element)) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 4125 | QETH_CARD_TEXT(card, 4, "unexeob"); |
Carsten Otte | efd5d9a | 2010-06-21 22:57:07 +0000 | [diff] [blame] | 4126 | QETH_CARD_HEX(card, 2, buffer, sizeof(void *)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4127 | dev_kfree_skb_any(skb); |
| 4128 | card->stats.rx_errors++; |
| 4129 | return NULL; |
| 4130 | } |
| 4131 | element++; |
| 4132 | offset = 0; |
| 4133 | data_ptr = element->addr; |
| 4134 | } else { |
| 4135 | offset += data_len; |
| 4136 | } |
| 4137 | } |
| 4138 | *__element = element; |
| 4139 | *__offset = offset; |
| 4140 | if (use_rx_sg && card->options.performance_stats) { |
| 4141 | card->perf_stats.sg_skbs_rx++; |
| 4142 | card->perf_stats.sg_frags_rx += skb_shinfo(skb)->nr_frags; |
| 4143 | } |
| 4144 | return skb; |
| 4145 | no_mem: |
| 4146 | if (net_ratelimit()) { |
Carsten Otte | 847a50f | 2010-06-21 22:57:05 +0000 | [diff] [blame] | 4147 | QETH_CARD_TEXT(card, 2, "noskbmem"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4148 | } |
| 4149 | card->stats.rx_dropped++; |
| 4150 | return NULL; |
| 4151 | } |
| 4152 | EXPORT_SYMBOL_GPL(qeth_core_get_next_skb); |
| 4153 | |
| 4154 | static void qeth_unregister_dbf_views(void) |
| 4155 | { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4156 | int x; |
| 4157 | for (x = 0; x < QETH_DBF_INFOS; x++) { |
| 4158 | debug_unregister(qeth_dbf[x].id); |
| 4159 | qeth_dbf[x].id = NULL; |
| 4160 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4161 | } |
| 4162 | |
Carsten Otte | 8e96c51 | 2010-06-21 22:57:03 +0000 | [diff] [blame] | 4163 | void qeth_dbf_longtext(debug_info_t *id, int level, char *fmt, ...) |
Peter Tiedemann | cd02321 | 2008-04-24 10:15:21 +0200 | [diff] [blame] | 4164 | { |
| 4165 | char dbf_txt_buf[32]; |
Peter Tiedemann | 345aa66 | 2008-06-06 12:37:47 +0200 | [diff] [blame] | 4166 | va_list args; |
Peter Tiedemann | cd02321 | 2008-04-24 10:15:21 +0200 | [diff] [blame] | 4167 | |
Carsten Otte | 8e96c51 | 2010-06-21 22:57:03 +0000 | [diff] [blame] | 4168 | if (level > id->level) |
Peter Tiedemann | cd02321 | 2008-04-24 10:15:21 +0200 | [diff] [blame] | 4169 | return; |
Peter Tiedemann | 345aa66 | 2008-06-06 12:37:47 +0200 | [diff] [blame] | 4170 | va_start(args, fmt); |
| 4171 | vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args); |
| 4172 | va_end(args); |
Carsten Otte | 8e96c51 | 2010-06-21 22:57:03 +0000 | [diff] [blame] | 4173 | debug_text_event(id, level, dbf_txt_buf); |
Peter Tiedemann | cd02321 | 2008-04-24 10:15:21 +0200 | [diff] [blame] | 4174 | } |
| 4175 | EXPORT_SYMBOL_GPL(qeth_dbf_longtext); |
| 4176 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4177 | static int qeth_register_dbf_views(void) |
| 4178 | { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4179 | int ret; |
| 4180 | int x; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4181 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4182 | for (x = 0; x < QETH_DBF_INFOS; x++) { |
| 4183 | /* register the areas */ |
| 4184 | qeth_dbf[x].id = debug_register(qeth_dbf[x].name, |
| 4185 | qeth_dbf[x].pages, |
| 4186 | qeth_dbf[x].areas, |
| 4187 | qeth_dbf[x].len); |
| 4188 | if (qeth_dbf[x].id == NULL) { |
| 4189 | qeth_unregister_dbf_views(); |
| 4190 | return -ENOMEM; |
| 4191 | } |
| 4192 | |
| 4193 | /* register a view */ |
| 4194 | ret = debug_register_view(qeth_dbf[x].id, qeth_dbf[x].view); |
| 4195 | if (ret) { |
| 4196 | qeth_unregister_dbf_views(); |
| 4197 | return ret; |
| 4198 | } |
| 4199 | |
| 4200 | /* set a passing level */ |
| 4201 | debug_set_level(qeth_dbf[x].id, qeth_dbf[x].level); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4202 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4203 | |
| 4204 | return 0; |
| 4205 | } |
| 4206 | |
| 4207 | int qeth_core_load_discipline(struct qeth_card *card, |
| 4208 | enum qeth_discipline_id discipline) |
| 4209 | { |
| 4210 | int rc = 0; |
| 4211 | switch (discipline) { |
| 4212 | case QETH_DISCIPLINE_LAYER3: |
| 4213 | card->discipline.ccwgdriver = try_then_request_module( |
| 4214 | symbol_get(qeth_l3_ccwgroup_driver), |
| 4215 | "qeth_l3"); |
| 4216 | break; |
| 4217 | case QETH_DISCIPLINE_LAYER2: |
| 4218 | card->discipline.ccwgdriver = try_then_request_module( |
| 4219 | symbol_get(qeth_l2_ccwgroup_driver), |
| 4220 | "qeth_l2"); |
| 4221 | break; |
| 4222 | } |
| 4223 | if (!card->discipline.ccwgdriver) { |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 4224 | dev_err(&card->gdev->dev, "There is no kernel module to " |
| 4225 | "support discipline %d\n", discipline); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4226 | rc = -EINVAL; |
| 4227 | } |
| 4228 | return rc; |
| 4229 | } |
| 4230 | |
| 4231 | void qeth_core_free_discipline(struct qeth_card *card) |
| 4232 | { |
| 4233 | if (card->options.layer2) |
| 4234 | symbol_put(qeth_l2_ccwgroup_driver); |
| 4235 | else |
| 4236 | symbol_put(qeth_l3_ccwgroup_driver); |
| 4237 | card->discipline.ccwgdriver = NULL; |
| 4238 | } |
| 4239 | |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 4240 | static void qeth_determine_capabilities(struct qeth_card *card) |
| 4241 | { |
| 4242 | int rc; |
Einar Lueck | a60389a | 2010-01-11 02:50:52 +0000 | [diff] [blame] | 4243 | int length; |
| 4244 | char *prcd; |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 4245 | |
| 4246 | QETH_DBF_TEXT(SETUP, 2, "detcapab"); |
| 4247 | rc = ccw_device_set_online(CARD_DDEV(card)); |
| 4248 | if (rc) { |
| 4249 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
| 4250 | goto out; |
| 4251 | } |
| 4252 | |
Einar Lueck | a60389a | 2010-01-11 02:50:52 +0000 | [diff] [blame] | 4253 | |
| 4254 | rc = qeth_read_conf_data(card, (void **) &prcd, &length); |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 4255 | if (rc) { |
Einar Lueck | a60389a | 2010-01-11 02:50:52 +0000 | [diff] [blame] | 4256 | QETH_DBF_MESSAGE(2, "%s qeth_read_conf_data returned %i\n", |
| 4257 | dev_name(&card->gdev->dev), rc); |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 4258 | QETH_DBF_TEXT_(SETUP, 2, "5err%d", rc); |
| 4259 | goto out_offline; |
| 4260 | } |
Einar Lueck | a60389a | 2010-01-11 02:50:52 +0000 | [diff] [blame] | 4261 | qeth_configure_unitaddr(card, prcd); |
| 4262 | qeth_configure_blkt_default(card, prcd); |
| 4263 | kfree(prcd); |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 4264 | |
| 4265 | rc = qdio_get_ssqd_desc(CARD_DDEV(card), &card->ssqd); |
| 4266 | if (rc) |
| 4267 | QETH_DBF_TEXT_(SETUP, 2, "6err%d", rc); |
| 4268 | |
| 4269 | out_offline: |
| 4270 | ccw_device_set_offline(CARD_DDEV(card)); |
| 4271 | out: |
| 4272 | return; |
| 4273 | } |
| 4274 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4275 | static int qeth_core_probe_device(struct ccwgroup_device *gdev) |
| 4276 | { |
| 4277 | struct qeth_card *card; |
| 4278 | struct device *dev; |
| 4279 | int rc; |
| 4280 | unsigned long flags; |
Carsten Otte | af03906 | 2010-06-21 22:57:04 +0000 | [diff] [blame] | 4281 | char dbf_name[20]; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4282 | |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4283 | QETH_DBF_TEXT(SETUP, 2, "probedev"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4284 | |
| 4285 | dev = &gdev->dev; |
| 4286 | if (!get_device(dev)) |
| 4287 | return -ENODEV; |
| 4288 | |
Kay Sievers | 2a0217d | 2008-10-10 21:33:09 +0200 | [diff] [blame] | 4289 | QETH_DBF_TEXT_(SETUP, 2, "%s", dev_name(&gdev->dev)); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4290 | |
| 4291 | card = qeth_alloc_card(); |
| 4292 | if (!card) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4293 | QETH_DBF_TEXT_(SETUP, 2, "1err%d", -ENOMEM); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4294 | rc = -ENOMEM; |
| 4295 | goto err_dev; |
| 4296 | } |
Carsten Otte | af03906 | 2010-06-21 22:57:04 +0000 | [diff] [blame] | 4297 | |
| 4298 | snprintf(dbf_name, sizeof(dbf_name), "qeth_card_%s", |
| 4299 | dev_name(&gdev->dev)); |
| 4300 | card->debug = debug_register(dbf_name, 2, 1, 8); |
| 4301 | if (!card->debug) { |
| 4302 | QETH_DBF_TEXT_(SETUP, 2, "%s", "qcdbf"); |
| 4303 | rc = -ENOMEM; |
| 4304 | goto err_card; |
| 4305 | } |
| 4306 | debug_register_view(card->debug, &debug_hex_ascii_view); |
| 4307 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4308 | card->read.ccwdev = gdev->cdev[0]; |
| 4309 | card->write.ccwdev = gdev->cdev[1]; |
| 4310 | card->data.ccwdev = gdev->cdev[2]; |
| 4311 | dev_set_drvdata(&gdev->dev, card); |
| 4312 | card->gdev = gdev; |
| 4313 | gdev->cdev[0]->handler = qeth_irq; |
| 4314 | gdev->cdev[1]->handler = qeth_irq; |
| 4315 | gdev->cdev[2]->handler = qeth_irq; |
| 4316 | |
| 4317 | rc = qeth_determine_card_type(card); |
| 4318 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4319 | QETH_DBF_TEXT_(SETUP, 2, "3err%d", rc); |
Carsten Otte | af03906 | 2010-06-21 22:57:04 +0000 | [diff] [blame] | 4320 | goto err_dbf; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4321 | } |
| 4322 | rc = qeth_setup_card(card); |
| 4323 | if (rc) { |
Peter Tiedemann | d11ba0c | 2008-04-01 10:26:58 +0200 | [diff] [blame] | 4324 | QETH_DBF_TEXT_(SETUP, 2, "2err%d", rc); |
Carsten Otte | af03906 | 2010-06-21 22:57:04 +0000 | [diff] [blame] | 4325 | goto err_dbf; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4326 | } |
| 4327 | |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 4328 | if (card->info.type == QETH_CARD_TYPE_OSN) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4329 | rc = qeth_core_create_osn_attributes(dev); |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 4330 | else |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4331 | rc = qeth_core_create_device_attributes(dev); |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 4332 | if (rc) |
Carsten Otte | af03906 | 2010-06-21 22:57:04 +0000 | [diff] [blame] | 4333 | goto err_dbf; |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 4334 | switch (card->info.type) { |
| 4335 | case QETH_CARD_TYPE_OSN: |
| 4336 | case QETH_CARD_TYPE_OSM: |
| 4337 | rc = qeth_core_load_discipline(card, QETH_DISCIPLINE_LAYER2); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4338 | if (rc) |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 4339 | goto err_attr; |
| 4340 | rc = card->discipline.ccwgdriver->probe(card->gdev); |
| 4341 | if (rc) |
| 4342 | goto err_disc; |
| 4343 | case QETH_CARD_TYPE_OSD: |
| 4344 | case QETH_CARD_TYPE_OSX: |
| 4345 | default: |
| 4346 | break; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4347 | } |
| 4348 | |
| 4349 | write_lock_irqsave(&qeth_core_card_list.rwlock, flags); |
| 4350 | list_add_tail(&card->list, &qeth_core_card_list.list); |
| 4351 | write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); |
Ursula Braun | 76b11f8 | 2010-01-11 02:50:50 +0000 | [diff] [blame] | 4352 | |
| 4353 | qeth_determine_capabilities(card); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4354 | return 0; |
| 4355 | |
Ursula Braun | 5113fec | 2010-05-16 21:15:14 +0000 | [diff] [blame] | 4356 | err_disc: |
| 4357 | qeth_core_free_discipline(card); |
| 4358 | err_attr: |
| 4359 | if (card->info.type == QETH_CARD_TYPE_OSN) |
| 4360 | qeth_core_remove_osn_attributes(dev); |
| 4361 | else |
| 4362 | qeth_core_remove_device_attributes(dev); |
Carsten Otte | af03906 | 2010-06-21 22:57:04 +0000 | [diff] [blame] | 4363 | err_dbf: |
| 4364 | debug_unregister(card->debug); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4365 | err_card: |
| 4366 | qeth_core_free_card(card); |
| 4367 | err_dev: |
| 4368 | put_device(dev); |
| 4369 | return rc; |
| 4370 | } |
| 4371 | |
| 4372 | static void qeth_core_remove_device(struct ccwgroup_device *gdev) |
| 4373 | { |
| 4374 | unsigned long flags; |
| 4375 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| 4376 | |
Ursula Braun | 28a7e4c | 2008-09-19 12:56:03 +0200 | [diff] [blame] | 4377 | QETH_DBF_TEXT(SETUP, 2, "removedv"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4378 | |
| 4379 | if (card->info.type == QETH_CARD_TYPE_OSN) { |
| 4380 | qeth_core_remove_osn_attributes(&gdev->dev); |
| 4381 | } else { |
| 4382 | qeth_core_remove_device_attributes(&gdev->dev); |
| 4383 | } |
Ursula Braun | 9dc48cc | 2010-07-22 23:15:05 +0000 | [diff] [blame] | 4384 | |
| 4385 | if (card->discipline.ccwgdriver) { |
| 4386 | card->discipline.ccwgdriver->remove(gdev); |
| 4387 | qeth_core_free_discipline(card); |
| 4388 | } |
| 4389 | |
Carsten Otte | af03906 | 2010-06-21 22:57:04 +0000 | [diff] [blame] | 4390 | debug_unregister(card->debug); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4391 | write_lock_irqsave(&qeth_core_card_list.rwlock, flags); |
| 4392 | list_del(&card->list); |
| 4393 | write_unlock_irqrestore(&qeth_core_card_list.rwlock, flags); |
| 4394 | qeth_core_free_card(card); |
| 4395 | dev_set_drvdata(&gdev->dev, NULL); |
| 4396 | put_device(&gdev->dev); |
| 4397 | return; |
| 4398 | } |
| 4399 | |
| 4400 | static int qeth_core_set_online(struct ccwgroup_device *gdev) |
| 4401 | { |
| 4402 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| 4403 | int rc = 0; |
| 4404 | int def_discipline; |
| 4405 | |
| 4406 | if (!card->discipline.ccwgdriver) { |
| 4407 | if (card->info.type == QETH_CARD_TYPE_IQD) |
| 4408 | def_discipline = QETH_DISCIPLINE_LAYER3; |
| 4409 | else |
| 4410 | def_discipline = QETH_DISCIPLINE_LAYER2; |
| 4411 | rc = qeth_core_load_discipline(card, def_discipline); |
| 4412 | if (rc) |
| 4413 | goto err; |
| 4414 | rc = card->discipline.ccwgdriver->probe(card->gdev); |
| 4415 | if (rc) |
| 4416 | goto err; |
| 4417 | } |
| 4418 | rc = card->discipline.ccwgdriver->set_online(gdev); |
| 4419 | err: |
| 4420 | return rc; |
| 4421 | } |
| 4422 | |
| 4423 | static int qeth_core_set_offline(struct ccwgroup_device *gdev) |
| 4424 | { |
| 4425 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| 4426 | return card->discipline.ccwgdriver->set_offline(gdev); |
| 4427 | } |
| 4428 | |
| 4429 | static void qeth_core_shutdown(struct ccwgroup_device *gdev) |
| 4430 | { |
| 4431 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| 4432 | if (card->discipline.ccwgdriver && |
| 4433 | card->discipline.ccwgdriver->shutdown) |
| 4434 | card->discipline.ccwgdriver->shutdown(gdev); |
| 4435 | } |
| 4436 | |
Frank Blaschka | bbcfcdc | 2009-06-16 10:30:31 +0200 | [diff] [blame] | 4437 | static int qeth_core_prepare(struct ccwgroup_device *gdev) |
| 4438 | { |
| 4439 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| 4440 | if (card->discipline.ccwgdriver && |
| 4441 | card->discipline.ccwgdriver->prepare) |
| 4442 | return card->discipline.ccwgdriver->prepare(gdev); |
| 4443 | return 0; |
| 4444 | } |
| 4445 | |
| 4446 | static void qeth_core_complete(struct ccwgroup_device *gdev) |
| 4447 | { |
| 4448 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| 4449 | if (card->discipline.ccwgdriver && |
| 4450 | card->discipline.ccwgdriver->complete) |
| 4451 | card->discipline.ccwgdriver->complete(gdev); |
| 4452 | } |
| 4453 | |
| 4454 | static int qeth_core_freeze(struct ccwgroup_device *gdev) |
| 4455 | { |
| 4456 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| 4457 | if (card->discipline.ccwgdriver && |
| 4458 | card->discipline.ccwgdriver->freeze) |
| 4459 | return card->discipline.ccwgdriver->freeze(gdev); |
| 4460 | return 0; |
| 4461 | } |
| 4462 | |
| 4463 | static int qeth_core_thaw(struct ccwgroup_device *gdev) |
| 4464 | { |
| 4465 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| 4466 | if (card->discipline.ccwgdriver && |
| 4467 | card->discipline.ccwgdriver->thaw) |
| 4468 | return card->discipline.ccwgdriver->thaw(gdev); |
| 4469 | return 0; |
| 4470 | } |
| 4471 | |
| 4472 | static int qeth_core_restore(struct ccwgroup_device *gdev) |
| 4473 | { |
| 4474 | struct qeth_card *card = dev_get_drvdata(&gdev->dev); |
| 4475 | if (card->discipline.ccwgdriver && |
| 4476 | card->discipline.ccwgdriver->restore) |
| 4477 | return card->discipline.ccwgdriver->restore(gdev); |
| 4478 | return 0; |
| 4479 | } |
| 4480 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4481 | static struct ccwgroup_driver qeth_core_ccwgroup_driver = { |
| 4482 | .owner = THIS_MODULE, |
| 4483 | .name = "qeth", |
| 4484 | .driver_id = 0xD8C5E3C8, |
| 4485 | .probe = qeth_core_probe_device, |
| 4486 | .remove = qeth_core_remove_device, |
| 4487 | .set_online = qeth_core_set_online, |
| 4488 | .set_offline = qeth_core_set_offline, |
| 4489 | .shutdown = qeth_core_shutdown, |
Frank Blaschka | bbcfcdc | 2009-06-16 10:30:31 +0200 | [diff] [blame] | 4490 | .prepare = qeth_core_prepare, |
| 4491 | .complete = qeth_core_complete, |
| 4492 | .freeze = qeth_core_freeze, |
| 4493 | .thaw = qeth_core_thaw, |
| 4494 | .restore = qeth_core_restore, |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4495 | }; |
| 4496 | |
| 4497 | static ssize_t |
| 4498 | qeth_core_driver_group_store(struct device_driver *ddrv, const char *buf, |
| 4499 | size_t count) |
| 4500 | { |
| 4501 | int err; |
| 4502 | err = qeth_core_driver_group(buf, qeth_core_root_dev, |
| 4503 | qeth_core_ccwgroup_driver.driver_id); |
| 4504 | if (err) |
| 4505 | return err; |
| 4506 | else |
| 4507 | return count; |
| 4508 | } |
| 4509 | |
| 4510 | static DRIVER_ATTR(group, 0200, NULL, qeth_core_driver_group_store); |
| 4511 | |
| 4512 | static struct { |
| 4513 | const char str[ETH_GSTRING_LEN]; |
| 4514 | } qeth_ethtool_stats_keys[] = { |
| 4515 | /* 0 */{"rx skbs"}, |
| 4516 | {"rx buffers"}, |
| 4517 | {"tx skbs"}, |
| 4518 | {"tx buffers"}, |
| 4519 | {"tx skbs no packing"}, |
| 4520 | {"tx buffers no packing"}, |
| 4521 | {"tx skbs packing"}, |
| 4522 | {"tx buffers packing"}, |
| 4523 | {"tx sg skbs"}, |
| 4524 | {"tx sg frags"}, |
| 4525 | /* 10 */{"rx sg skbs"}, |
| 4526 | {"rx sg frags"}, |
| 4527 | {"rx sg page allocs"}, |
| 4528 | {"tx large kbytes"}, |
| 4529 | {"tx large count"}, |
| 4530 | {"tx pk state ch n->p"}, |
| 4531 | {"tx pk state ch p->n"}, |
| 4532 | {"tx pk watermark low"}, |
| 4533 | {"tx pk watermark high"}, |
| 4534 | {"queue 0 buffer usage"}, |
| 4535 | /* 20 */{"queue 1 buffer usage"}, |
| 4536 | {"queue 2 buffer usage"}, |
| 4537 | {"queue 3 buffer usage"}, |
Frank Blaschka | a1c3ed4 | 2010-09-07 21:14:42 +0000 | [diff] [blame] | 4538 | {"rx poll time"}, |
| 4539 | {"rx poll count"}, |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4540 | {"rx do_QDIO time"}, |
| 4541 | {"rx do_QDIO count"}, |
| 4542 | {"tx handler time"}, |
| 4543 | {"tx handler count"}, |
| 4544 | {"tx time"}, |
| 4545 | /* 30 */{"tx count"}, |
| 4546 | {"tx do_QDIO time"}, |
| 4547 | {"tx do_QDIO count"}, |
Frank Blaschka | f61a0d0 | 2009-03-24 20:57:15 +0000 | [diff] [blame] | 4548 | {"tx csum"}, |
Frank Blaschka | c3b4a74 | 2009-11-12 00:11:44 +0000 | [diff] [blame] | 4549 | {"tx lin"}, |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4550 | }; |
| 4551 | |
Ben Hutchings | df8b4ec | 2009-10-01 11:24:32 +0000 | [diff] [blame] | 4552 | int qeth_core_get_sset_count(struct net_device *dev, int stringset) |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4553 | { |
Ben Hutchings | df8b4ec | 2009-10-01 11:24:32 +0000 | [diff] [blame] | 4554 | switch (stringset) { |
| 4555 | case ETH_SS_STATS: |
| 4556 | return (sizeof(qeth_ethtool_stats_keys) / ETH_GSTRING_LEN); |
| 4557 | default: |
| 4558 | return -EINVAL; |
| 4559 | } |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4560 | } |
Ben Hutchings | df8b4ec | 2009-10-01 11:24:32 +0000 | [diff] [blame] | 4561 | EXPORT_SYMBOL_GPL(qeth_core_get_sset_count); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4562 | |
| 4563 | void qeth_core_get_ethtool_stats(struct net_device *dev, |
| 4564 | struct ethtool_stats *stats, u64 *data) |
| 4565 | { |
Heiko Carstens | 509e256 | 2008-07-26 02:24:10 -0700 | [diff] [blame] | 4566 | struct qeth_card *card = dev->ml_priv; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4567 | data[0] = card->stats.rx_packets - |
| 4568 | card->perf_stats.initial_rx_packets; |
| 4569 | data[1] = card->perf_stats.bufs_rec; |
| 4570 | data[2] = card->stats.tx_packets - |
| 4571 | card->perf_stats.initial_tx_packets; |
| 4572 | data[3] = card->perf_stats.bufs_sent; |
| 4573 | data[4] = card->stats.tx_packets - card->perf_stats.initial_tx_packets |
| 4574 | - card->perf_stats.skbs_sent_pack; |
| 4575 | data[5] = card->perf_stats.bufs_sent - card->perf_stats.bufs_sent_pack; |
| 4576 | data[6] = card->perf_stats.skbs_sent_pack; |
| 4577 | data[7] = card->perf_stats.bufs_sent_pack; |
| 4578 | data[8] = card->perf_stats.sg_skbs_sent; |
| 4579 | data[9] = card->perf_stats.sg_frags_sent; |
| 4580 | data[10] = card->perf_stats.sg_skbs_rx; |
| 4581 | data[11] = card->perf_stats.sg_frags_rx; |
| 4582 | data[12] = card->perf_stats.sg_alloc_page_rx; |
| 4583 | data[13] = (card->perf_stats.large_send_bytes >> 10); |
| 4584 | data[14] = card->perf_stats.large_send_cnt; |
| 4585 | data[15] = card->perf_stats.sc_dp_p; |
| 4586 | data[16] = card->perf_stats.sc_p_dp; |
| 4587 | data[17] = QETH_LOW_WATERMARK_PACK; |
| 4588 | data[18] = QETH_HIGH_WATERMARK_PACK; |
| 4589 | data[19] = atomic_read(&card->qdio.out_qs[0]->used_buffers); |
| 4590 | data[20] = (card->qdio.no_out_queues > 1) ? |
| 4591 | atomic_read(&card->qdio.out_qs[1]->used_buffers) : 0; |
| 4592 | data[21] = (card->qdio.no_out_queues > 2) ? |
| 4593 | atomic_read(&card->qdio.out_qs[2]->used_buffers) : 0; |
| 4594 | data[22] = (card->qdio.no_out_queues > 3) ? |
| 4595 | atomic_read(&card->qdio.out_qs[3]->used_buffers) : 0; |
| 4596 | data[23] = card->perf_stats.inbound_time; |
| 4597 | data[24] = card->perf_stats.inbound_cnt; |
| 4598 | data[25] = card->perf_stats.inbound_do_qdio_time; |
| 4599 | data[26] = card->perf_stats.inbound_do_qdio_cnt; |
| 4600 | data[27] = card->perf_stats.outbound_handler_time; |
| 4601 | data[28] = card->perf_stats.outbound_handler_cnt; |
| 4602 | data[29] = card->perf_stats.outbound_time; |
| 4603 | data[30] = card->perf_stats.outbound_cnt; |
| 4604 | data[31] = card->perf_stats.outbound_do_qdio_time; |
| 4605 | data[32] = card->perf_stats.outbound_do_qdio_cnt; |
Frank Blaschka | f61a0d0 | 2009-03-24 20:57:15 +0000 | [diff] [blame] | 4606 | data[33] = card->perf_stats.tx_csum; |
Frank Blaschka | c3b4a74 | 2009-11-12 00:11:44 +0000 | [diff] [blame] | 4607 | data[34] = card->perf_stats.tx_lin; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4608 | } |
| 4609 | EXPORT_SYMBOL_GPL(qeth_core_get_ethtool_stats); |
| 4610 | |
| 4611 | void qeth_core_get_strings(struct net_device *dev, u32 stringset, u8 *data) |
| 4612 | { |
| 4613 | switch (stringset) { |
| 4614 | case ETH_SS_STATS: |
| 4615 | memcpy(data, &qeth_ethtool_stats_keys, |
| 4616 | sizeof(qeth_ethtool_stats_keys)); |
| 4617 | break; |
| 4618 | default: |
| 4619 | WARN_ON(1); |
| 4620 | break; |
| 4621 | } |
| 4622 | } |
| 4623 | EXPORT_SYMBOL_GPL(qeth_core_get_strings); |
| 4624 | |
| 4625 | void qeth_core_get_drvinfo(struct net_device *dev, |
| 4626 | struct ethtool_drvinfo *info) |
| 4627 | { |
Heiko Carstens | 509e256 | 2008-07-26 02:24:10 -0700 | [diff] [blame] | 4628 | struct qeth_card *card = dev->ml_priv; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4629 | if (card->options.layer2) |
| 4630 | strcpy(info->driver, "qeth_l2"); |
| 4631 | else |
| 4632 | strcpy(info->driver, "qeth_l3"); |
| 4633 | |
| 4634 | strcpy(info->version, "1.0"); |
| 4635 | strcpy(info->fw_version, card->info.mcl_level); |
| 4636 | sprintf(info->bus_info, "%s/%s/%s", |
| 4637 | CARD_RDEV_ID(card), |
| 4638 | CARD_WDEV_ID(card), |
| 4639 | CARD_DDEV_ID(card)); |
| 4640 | } |
| 4641 | EXPORT_SYMBOL_GPL(qeth_core_get_drvinfo); |
| 4642 | |
Frank Blaschka | 3f9975a | 2008-04-24 10:15:23 +0200 | [diff] [blame] | 4643 | int qeth_core_ethtool_get_settings(struct net_device *netdev, |
| 4644 | struct ethtool_cmd *ecmd) |
| 4645 | { |
Heiko Carstens | 509e256 | 2008-07-26 02:24:10 -0700 | [diff] [blame] | 4646 | struct qeth_card *card = netdev->ml_priv; |
Frank Blaschka | 3f9975a | 2008-04-24 10:15:23 +0200 | [diff] [blame] | 4647 | enum qeth_link_types link_type; |
| 4648 | |
| 4649 | if ((card->info.type == QETH_CARD_TYPE_IQD) || (card->info.guestlan)) |
| 4650 | link_type = QETH_LINK_TYPE_10GBIT_ETH; |
| 4651 | else |
| 4652 | link_type = card->info.link_type; |
| 4653 | |
| 4654 | ecmd->transceiver = XCVR_INTERNAL; |
| 4655 | ecmd->supported = SUPPORTED_Autoneg; |
| 4656 | ecmd->advertising = ADVERTISED_Autoneg; |
| 4657 | ecmd->duplex = DUPLEX_FULL; |
| 4658 | ecmd->autoneg = AUTONEG_ENABLE; |
| 4659 | |
| 4660 | switch (link_type) { |
| 4661 | case QETH_LINK_TYPE_FAST_ETH: |
| 4662 | case QETH_LINK_TYPE_LANE_ETH100: |
| 4663 | ecmd->supported |= SUPPORTED_10baseT_Half | |
| 4664 | SUPPORTED_10baseT_Full | |
| 4665 | SUPPORTED_100baseT_Half | |
| 4666 | SUPPORTED_100baseT_Full | |
| 4667 | SUPPORTED_TP; |
| 4668 | ecmd->advertising |= ADVERTISED_10baseT_Half | |
| 4669 | ADVERTISED_10baseT_Full | |
| 4670 | ADVERTISED_100baseT_Half | |
| 4671 | ADVERTISED_100baseT_Full | |
| 4672 | ADVERTISED_TP; |
| 4673 | ecmd->speed = SPEED_100; |
| 4674 | ecmd->port = PORT_TP; |
| 4675 | break; |
| 4676 | |
| 4677 | case QETH_LINK_TYPE_GBIT_ETH: |
| 4678 | case QETH_LINK_TYPE_LANE_ETH1000: |
| 4679 | ecmd->supported |= SUPPORTED_10baseT_Half | |
| 4680 | SUPPORTED_10baseT_Full | |
| 4681 | SUPPORTED_100baseT_Half | |
| 4682 | SUPPORTED_100baseT_Full | |
| 4683 | SUPPORTED_1000baseT_Half | |
| 4684 | SUPPORTED_1000baseT_Full | |
| 4685 | SUPPORTED_FIBRE; |
| 4686 | ecmd->advertising |= ADVERTISED_10baseT_Half | |
| 4687 | ADVERTISED_10baseT_Full | |
| 4688 | ADVERTISED_100baseT_Half | |
| 4689 | ADVERTISED_100baseT_Full | |
| 4690 | ADVERTISED_1000baseT_Half | |
| 4691 | ADVERTISED_1000baseT_Full | |
| 4692 | ADVERTISED_FIBRE; |
| 4693 | ecmd->speed = SPEED_1000; |
| 4694 | ecmd->port = PORT_FIBRE; |
| 4695 | break; |
| 4696 | |
| 4697 | case QETH_LINK_TYPE_10GBIT_ETH: |
| 4698 | ecmd->supported |= SUPPORTED_10baseT_Half | |
| 4699 | SUPPORTED_10baseT_Full | |
| 4700 | SUPPORTED_100baseT_Half | |
| 4701 | SUPPORTED_100baseT_Full | |
| 4702 | SUPPORTED_1000baseT_Half | |
| 4703 | SUPPORTED_1000baseT_Full | |
| 4704 | SUPPORTED_10000baseT_Full | |
| 4705 | SUPPORTED_FIBRE; |
| 4706 | ecmd->advertising |= ADVERTISED_10baseT_Half | |
| 4707 | ADVERTISED_10baseT_Full | |
| 4708 | ADVERTISED_100baseT_Half | |
| 4709 | ADVERTISED_100baseT_Full | |
| 4710 | ADVERTISED_1000baseT_Half | |
| 4711 | ADVERTISED_1000baseT_Full | |
| 4712 | ADVERTISED_10000baseT_Full | |
| 4713 | ADVERTISED_FIBRE; |
| 4714 | ecmd->speed = SPEED_10000; |
| 4715 | ecmd->port = PORT_FIBRE; |
| 4716 | break; |
| 4717 | |
| 4718 | default: |
| 4719 | ecmd->supported |= SUPPORTED_10baseT_Half | |
| 4720 | SUPPORTED_10baseT_Full | |
| 4721 | SUPPORTED_TP; |
| 4722 | ecmd->advertising |= ADVERTISED_10baseT_Half | |
| 4723 | ADVERTISED_10baseT_Full | |
| 4724 | ADVERTISED_TP; |
| 4725 | ecmd->speed = SPEED_10; |
| 4726 | ecmd->port = PORT_TP; |
| 4727 | } |
| 4728 | |
| 4729 | return 0; |
| 4730 | } |
| 4731 | EXPORT_SYMBOL_GPL(qeth_core_ethtool_get_settings); |
| 4732 | |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4733 | static int __init qeth_core_init(void) |
| 4734 | { |
| 4735 | int rc; |
| 4736 | |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 4737 | pr_info("loading core functions\n"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4738 | INIT_LIST_HEAD(&qeth_core_card_list.list); |
| 4739 | rwlock_init(&qeth_core_card_list.rwlock); |
| 4740 | |
| 4741 | rc = qeth_register_dbf_views(); |
| 4742 | if (rc) |
| 4743 | goto out_err; |
| 4744 | rc = ccw_driver_register(&qeth_ccw_driver); |
| 4745 | if (rc) |
| 4746 | goto ccw_err; |
| 4747 | rc = ccwgroup_driver_register(&qeth_core_ccwgroup_driver); |
| 4748 | if (rc) |
| 4749 | goto ccwgroup_err; |
| 4750 | rc = driver_create_file(&qeth_core_ccwgroup_driver.driver, |
| 4751 | &driver_attr_group); |
| 4752 | if (rc) |
| 4753 | goto driver_err; |
Mark McLoughlin | 035da16 | 2008-12-15 12:58:29 +0000 | [diff] [blame] | 4754 | qeth_core_root_dev = root_device_register("qeth"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4755 | rc = IS_ERR(qeth_core_root_dev) ? PTR_ERR(qeth_core_root_dev) : 0; |
| 4756 | if (rc) |
| 4757 | goto register_err; |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4758 | |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 4759 | qeth_core_header_cache = kmem_cache_create("qeth_hdr", |
| 4760 | sizeof(struct qeth_hdr) + ETH_HLEN, 64, 0, NULL); |
| 4761 | if (!qeth_core_header_cache) { |
| 4762 | rc = -ENOMEM; |
| 4763 | goto slab_err; |
| 4764 | } |
| 4765 | |
| 4766 | return 0; |
| 4767 | slab_err: |
Mark McLoughlin | 035da16 | 2008-12-15 12:58:29 +0000 | [diff] [blame] | 4768 | root_device_unregister(qeth_core_root_dev); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4769 | register_err: |
| 4770 | driver_remove_file(&qeth_core_ccwgroup_driver.driver, |
| 4771 | &driver_attr_group); |
| 4772 | driver_err: |
| 4773 | ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver); |
| 4774 | ccwgroup_err: |
| 4775 | ccw_driver_unregister(&qeth_ccw_driver); |
| 4776 | ccw_err: |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 4777 | QETH_DBF_MESSAGE(2, "Initialization failed with code %d\n", rc); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4778 | qeth_unregister_dbf_views(); |
| 4779 | out_err: |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 4780 | pr_err("Initializing the qeth device driver failed\n"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4781 | return rc; |
| 4782 | } |
| 4783 | |
| 4784 | static void __exit qeth_core_exit(void) |
| 4785 | { |
Mark McLoughlin | 035da16 | 2008-12-15 12:58:29 +0000 | [diff] [blame] | 4786 | root_device_unregister(qeth_core_root_dev); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4787 | driver_remove_file(&qeth_core_ccwgroup_driver.driver, |
| 4788 | &driver_attr_group); |
| 4789 | ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver); |
| 4790 | ccw_driver_unregister(&qeth_ccw_driver); |
Frank Blaschka | 683d718 | 2008-08-01 16:39:13 +0200 | [diff] [blame] | 4791 | kmem_cache_destroy(qeth_core_header_cache); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4792 | qeth_unregister_dbf_views(); |
Frank Blaschka | 74eacdb | 2008-12-25 13:39:49 +0100 | [diff] [blame] | 4793 | pr_info("core functions removed\n"); |
Frank Blaschka | 4a71df5 | 2008-02-15 09:19:42 +0100 | [diff] [blame] | 4794 | } |
| 4795 | |
| 4796 | module_init(qeth_core_init); |
| 4797 | module_exit(qeth_core_exit); |
| 4798 | MODULE_AUTHOR("Frank Blaschka <frank.blaschka@de.ibm.com>"); |
| 4799 | MODULE_DESCRIPTION("qeth core functions"); |
| 4800 | MODULE_LICENSE("GPL"); |