| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 1 | /******************************************************************* |
| 2 | * This file is part of the Emulex Linux Device Driver for * |
James.Smart@Emulex.Com | c44ce17 | 2005-06-25 10:34:39 -0400 | [diff] [blame] | 3 | * Fibre Channel Host Bus Adapters. * |
| 4 | * Copyright (C) 2004-2005 Emulex. All rights reserved. * |
| 5 | * EMULEX and SLI are trademarks of Emulex. * |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 6 | * www.emulex.com * |
James.Smart@Emulex.Com | c44ce17 | 2005-06-25 10:34:39 -0400 | [diff] [blame] | 7 | * Portions Copyright (C) 2004-2005 Christoph Hellwig * |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 8 | * * |
| 9 | * This program is free software; you can redistribute it and/or * |
James.Smart@Emulex.Com | c44ce17 | 2005-06-25 10:34:39 -0400 | [diff] [blame] | 10 | * modify it under the terms of version 2 of the GNU General * |
| 11 | * Public License as published by the Free Software Foundation. * |
| 12 | * This program is distributed in the hope that it will be useful. * |
| 13 | * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND * |
| 14 | * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, * |
| 15 | * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE * |
| 16 | * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD * |
| 17 | * TO BE LEGALLY INVALID. See the GNU General Public License for * |
| 18 | * more details, a copy of which can be found in the file COPYING * |
| 19 | * included with this package. * |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 20 | *******************************************************************/ |
| 21 | |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 22 | #include <linux/blkdev.h> |
| 23 | #include <linux/pci.h> |
| 24 | #include <linux/interrupt.h> |
| 25 | #include <linux/delay.h> |
| 26 | |
James.Smart@Emulex.Com | 9188652 | 2005-08-10 15:03:09 -0400 | [diff] [blame] | 27 | #include <scsi/scsi.h> |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 28 | #include <scsi/scsi_cmnd.h> |
| 29 | #include <scsi/scsi_device.h> |
| 30 | #include <scsi/scsi_host.h> |
James.Smart@Emulex.Com | f888ba3 | 2005-08-10 15:03:01 -0400 | [diff] [blame] | 31 | #include <scsi/scsi_transport_fc.h> |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 32 | |
| 33 | #include "lpfc_hw.h" |
| 34 | #include "lpfc_sli.h" |
| 35 | #include "lpfc_disc.h" |
| 36 | #include "lpfc_scsi.h" |
| 37 | #include "lpfc.h" |
| 38 | #include "lpfc_crtn.h" |
| 39 | #include "lpfc_logmsg.h" |
| 40 | #include "lpfc_compat.h" |
| 41 | |
| 42 | /* |
| 43 | * Define macro to log: Mailbox command x%x cannot issue Data |
| 44 | * This allows multiple uses of lpfc_msgBlk0311 |
| 45 | * w/o perturbing log msg utility. |
| 46 | */ |
| 47 | #define LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag) \ |
| 48 | lpfc_printf_log(phba, \ |
| 49 | KERN_INFO, \ |
| 50 | LOG_MBOX | LOG_SLI, \ |
| 51 | "%d:0311 Mailbox command x%x cannot issue " \ |
| 52 | "Data: x%x x%x x%x\n", \ |
| 53 | phba->brd_no, \ |
| 54 | mb->mbxCommand, \ |
| 55 | phba->hba_state, \ |
| 56 | psli->sli_flag, \ |
| 57 | flag); |
| 58 | |
| 59 | |
| 60 | /* There are only four IOCB completion types. */ |
| 61 | typedef enum _lpfc_iocb_type { |
| 62 | LPFC_UNKNOWN_IOCB, |
| 63 | LPFC_UNSOL_IOCB, |
| 64 | LPFC_SOL_IOCB, |
| 65 | LPFC_ABORT_IOCB |
| 66 | } lpfc_iocb_type; |
| 67 | |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 68 | void |
| 69 | lpfc_sli_release_iocbq(struct lpfc_hba * phba, struct lpfc_iocbq * iocbq) |
| 70 | { |
| 71 | size_t start_clean = (size_t)(&((struct lpfc_iocbq *)NULL)->iocb); |
| 72 | |
| 73 | /* |
| 74 | * Clean all volatile data fields, preserve iotag and node struct. |
| 75 | */ |
| 76 | memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean); |
| 77 | list_add_tail(&iocbq->list, &phba->lpfc_iocb_list); |
| 78 | } |
| 79 | |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 80 | /* |
| 81 | * Translate the iocb command to an iocb command type used to decide the final |
| 82 | * disposition of each completed IOCB. |
| 83 | */ |
| 84 | static lpfc_iocb_type |
| 85 | lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd) |
| 86 | { |
| 87 | lpfc_iocb_type type = LPFC_UNKNOWN_IOCB; |
| 88 | |
| 89 | if (iocb_cmnd > CMD_MAX_IOCB_CMD) |
| 90 | return 0; |
| 91 | |
| 92 | switch (iocb_cmnd) { |
| 93 | case CMD_XMIT_SEQUENCE_CR: |
| 94 | case CMD_XMIT_SEQUENCE_CX: |
| 95 | case CMD_XMIT_BCAST_CN: |
| 96 | case CMD_XMIT_BCAST_CX: |
| 97 | case CMD_ELS_REQUEST_CR: |
| 98 | case CMD_ELS_REQUEST_CX: |
| 99 | case CMD_CREATE_XRI_CR: |
| 100 | case CMD_CREATE_XRI_CX: |
| 101 | case CMD_GET_RPI_CN: |
| 102 | case CMD_XMIT_ELS_RSP_CX: |
| 103 | case CMD_GET_RPI_CR: |
| 104 | case CMD_FCP_IWRITE_CR: |
| 105 | case CMD_FCP_IWRITE_CX: |
| 106 | case CMD_FCP_IREAD_CR: |
| 107 | case CMD_FCP_IREAD_CX: |
| 108 | case CMD_FCP_ICMND_CR: |
| 109 | case CMD_FCP_ICMND_CX: |
| 110 | case CMD_ADAPTER_MSG: |
| 111 | case CMD_ADAPTER_DUMP: |
| 112 | case CMD_XMIT_SEQUENCE64_CR: |
| 113 | case CMD_XMIT_SEQUENCE64_CX: |
| 114 | case CMD_XMIT_BCAST64_CN: |
| 115 | case CMD_XMIT_BCAST64_CX: |
| 116 | case CMD_ELS_REQUEST64_CR: |
| 117 | case CMD_ELS_REQUEST64_CX: |
| 118 | case CMD_FCP_IWRITE64_CR: |
| 119 | case CMD_FCP_IWRITE64_CX: |
| 120 | case CMD_FCP_IREAD64_CR: |
| 121 | case CMD_FCP_IREAD64_CX: |
| 122 | case CMD_FCP_ICMND64_CR: |
| 123 | case CMD_FCP_ICMND64_CX: |
| 124 | case CMD_GEN_REQUEST64_CR: |
| 125 | case CMD_GEN_REQUEST64_CX: |
| 126 | case CMD_XMIT_ELS_RSP64_CX: |
| 127 | type = LPFC_SOL_IOCB; |
| 128 | break; |
| 129 | case CMD_ABORT_XRI_CN: |
| 130 | case CMD_ABORT_XRI_CX: |
| 131 | case CMD_CLOSE_XRI_CN: |
| 132 | case CMD_CLOSE_XRI_CX: |
| 133 | case CMD_XRI_ABORTED_CX: |
| 134 | case CMD_ABORT_MXRI64_CN: |
| 135 | type = LPFC_ABORT_IOCB; |
| 136 | break; |
| 137 | case CMD_RCV_SEQUENCE_CX: |
| 138 | case CMD_RCV_ELS_REQ_CX: |
| 139 | case CMD_RCV_SEQUENCE64_CX: |
| 140 | case CMD_RCV_ELS_REQ64_CX: |
| 141 | type = LPFC_UNSOL_IOCB; |
| 142 | break; |
| 143 | default: |
| 144 | type = LPFC_UNKNOWN_IOCB; |
| 145 | break; |
| 146 | } |
| 147 | |
| 148 | return type; |
| 149 | } |
| 150 | |
| 151 | static int |
| 152 | lpfc_sli_ring_map(struct lpfc_hba * phba, LPFC_MBOXQ_t *pmb) |
| 153 | { |
| 154 | struct lpfc_sli *psli = &phba->sli; |
| 155 | MAILBOX_t *pmbox = &pmb->mb; |
| 156 | int i, rc; |
| 157 | |
| 158 | for (i = 0; i < psli->num_rings; i++) { |
| 159 | phba->hba_state = LPFC_INIT_MBX_CMDS; |
| 160 | lpfc_config_ring(phba, i, pmb); |
| 161 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); |
| 162 | if (rc != MBX_SUCCESS) { |
| 163 | lpfc_printf_log(phba, |
| 164 | KERN_ERR, |
| 165 | LOG_INIT, |
| 166 | "%d:0446 Adapter failed to init, " |
| 167 | "mbxCmd x%x CFG_RING, mbxStatus x%x, " |
| 168 | "ring %d\n", |
| 169 | phba->brd_no, |
| 170 | pmbox->mbxCommand, |
| 171 | pmbox->mbxStatus, |
| 172 | i); |
| 173 | phba->hba_state = LPFC_HBA_ERROR; |
| 174 | return -ENXIO; |
| 175 | } |
| 176 | } |
| 177 | return 0; |
| 178 | } |
| 179 | |
| 180 | static int |
| 181 | lpfc_sli_ringtxcmpl_put(struct lpfc_hba * phba, |
| 182 | struct lpfc_sli_ring * pring, struct lpfc_iocbq * piocb) |
| 183 | { |
| 184 | uint16_t iotag; |
| 185 | |
| 186 | list_add_tail(&piocb->list, &pring->txcmplq); |
| 187 | pring->txcmplq_cnt++; |
| 188 | if (unlikely(pring->ringno == LPFC_ELS_RING)) |
| 189 | mod_timer(&phba->els_tmofunc, |
| 190 | jiffies + HZ * (phba->fc_ratov << 1)); |
| 191 | |
| 192 | if (pring->fast_lookup) { |
| 193 | /* Setup fast lookup based on iotag for completion */ |
| 194 | iotag = piocb->iocb.ulpIoTag; |
| 195 | if (iotag && (iotag < pring->fast_iotag)) |
| 196 | *(pring->fast_lookup + iotag) = piocb; |
| 197 | else { |
| 198 | |
| 199 | /* Cmd ring <ringno> put: iotag <iotag> greater then |
| 200 | configured max <fast_iotag> wd0 <icmd> */ |
| 201 | lpfc_printf_log(phba, |
| 202 | KERN_ERR, |
| 203 | LOG_SLI, |
| 204 | "%d:0316 Cmd ring %d put: iotag x%x " |
| 205 | "greater then configured max x%x " |
| 206 | "wd0 x%x\n", |
| 207 | phba->brd_no, |
| 208 | pring->ringno, iotag, |
| 209 | pring->fast_iotag, |
| 210 | *(((uint32_t *)(&piocb->iocb)) + 7)); |
| 211 | } |
| 212 | } |
| 213 | return (0); |
| 214 | } |
| 215 | |
| 216 | static struct lpfc_iocbq * |
| 217 | lpfc_sli_ringtx_get(struct lpfc_hba * phba, struct lpfc_sli_ring * pring) |
| 218 | { |
| 219 | struct list_head *dlp; |
| 220 | struct lpfc_iocbq *cmd_iocb; |
| 221 | |
| 222 | dlp = &pring->txq; |
| 223 | cmd_iocb = NULL; |
| 224 | list_remove_head((&pring->txq), cmd_iocb, |
| 225 | struct lpfc_iocbq, |
| 226 | list); |
| 227 | if (cmd_iocb) { |
| 228 | /* If the first ptr is not equal to the list header, |
| 229 | * deque the IOCBQ_t and return it. |
| 230 | */ |
| 231 | pring->txq_cnt--; |
| 232 | } |
| 233 | return (cmd_iocb); |
| 234 | } |
| 235 | |
| 236 | static IOCB_t * |
| 237 | lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
| 238 | { |
James.Smart@Emulex.Com | 4cc2da1 | 2005-06-25 10:34:00 -0400 | [diff] [blame] | 239 | struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno]; |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 240 | uint32_t max_cmd_idx = pring->numCiocb; |
| 241 | IOCB_t *iocb = NULL; |
| 242 | |
| 243 | if ((pring->next_cmdidx == pring->cmdidx) && |
| 244 | (++pring->next_cmdidx >= max_cmd_idx)) |
| 245 | pring->next_cmdidx = 0; |
| 246 | |
| 247 | if (unlikely(pring->local_getidx == pring->next_cmdidx)) { |
| 248 | |
| 249 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); |
| 250 | |
| 251 | if (unlikely(pring->local_getidx >= max_cmd_idx)) { |
| 252 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
| 253 | "%d:0315 Ring %d issue: portCmdGet %d " |
| 254 | "is bigger then cmd ring %d\n", |
| 255 | phba->brd_no, pring->ringno, |
| 256 | pring->local_getidx, max_cmd_idx); |
| 257 | |
| 258 | phba->hba_state = LPFC_HBA_ERROR; |
| 259 | /* |
| 260 | * All error attention handlers are posted to |
| 261 | * worker thread |
| 262 | */ |
| 263 | phba->work_ha |= HA_ERATT; |
| 264 | phba->work_hs = HS_FFER3; |
| 265 | if (phba->work_wait) |
| 266 | wake_up(phba->work_wait); |
| 267 | |
| 268 | return NULL; |
| 269 | } |
| 270 | |
| 271 | if (pring->local_getidx == pring->next_cmdidx) |
| 272 | return NULL; |
| 273 | } |
| 274 | |
| 275 | iocb = IOCB_ENTRY(pring->cmdringaddr, pring->cmdidx); |
| 276 | |
| 277 | return iocb; |
| 278 | } |
| 279 | |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 280 | uint16_t |
| 281 | lpfc_sli_next_iotag(struct lpfc_hba * phba, struct lpfc_iocbq * iocbq) |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 282 | { |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 283 | struct lpfc_iocbq ** new_arr; |
| 284 | struct lpfc_iocbq ** old_arr; |
| 285 | size_t new_len; |
| 286 | struct lpfc_sli *psli = &phba->sli; |
| 287 | uint16_t iotag; |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 288 | |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 289 | spin_lock_irq(phba->host->host_lock); |
| 290 | iotag = psli->last_iotag; |
| 291 | if(++iotag < psli->iocbq_lookup_len) { |
| 292 | psli->last_iotag = iotag; |
| 293 | psli->iocbq_lookup[iotag] = iocbq; |
| 294 | spin_unlock_irq(phba->host->host_lock); |
| 295 | iocbq->iotag = iotag; |
| 296 | return iotag; |
| 297 | } |
| 298 | else if (psli->iocbq_lookup_len < (0xffff |
| 299 | - LPFC_IOCBQ_LOOKUP_INCREMENT)) { |
| 300 | new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT; |
| 301 | spin_unlock_irq(phba->host->host_lock); |
| 302 | new_arr = kmalloc(new_len * sizeof (struct lpfc_iocbq *), |
| 303 | GFP_KERNEL); |
| 304 | if (new_arr) { |
| 305 | memset((char *)new_arr, 0, |
| 306 | new_len * sizeof (struct lpfc_iocbq *)); |
| 307 | spin_lock_irq(phba->host->host_lock); |
| 308 | old_arr = psli->iocbq_lookup; |
| 309 | if (new_len <= psli->iocbq_lookup_len) { |
| 310 | /* highly unprobable case */ |
| 311 | kfree(new_arr); |
| 312 | iotag = psli->last_iotag; |
| 313 | if(++iotag < psli->iocbq_lookup_len) { |
| 314 | psli->last_iotag = iotag; |
| 315 | psli->iocbq_lookup[iotag] = iocbq; |
| 316 | spin_unlock_irq(phba->host->host_lock); |
| 317 | iocbq->iotag = iotag; |
| 318 | return iotag; |
| 319 | } |
| 320 | spin_unlock_irq(phba->host->host_lock); |
| 321 | return 0; |
| 322 | } |
| 323 | if (psli->iocbq_lookup) |
| 324 | memcpy(new_arr, old_arr, |
| 325 | ((psli->last_iotag + 1) * |
| 326 | sizeof (struct lpfc_iocbq *))); |
| 327 | psli->iocbq_lookup = new_arr; |
| 328 | psli->iocbq_lookup_len = new_len; |
| 329 | psli->last_iotag = iotag; |
| 330 | psli->iocbq_lookup[iotag] = iocbq; |
| 331 | spin_unlock_irq(phba->host->host_lock); |
| 332 | iocbq->iotag = iotag; |
| 333 | kfree(old_arr); |
| 334 | return iotag; |
| 335 | } |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 336 | } |
| 337 | |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 338 | lpfc_printf_log(phba, KERN_ERR,LOG_SLI, |
| 339 | "%d:0318 Failed to allocate IOTAG.last IOTAG is %d\n", |
| 340 | phba->brd_no, psli->last_iotag); |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 341 | |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 342 | return 0; |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 343 | } |
| 344 | |
| 345 | static void |
| 346 | lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
| 347 | IOCB_t *iocb, struct lpfc_iocbq *nextiocb) |
| 348 | { |
| 349 | /* |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 350 | * Set up an iotag |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 351 | */ |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 352 | nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0; |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 353 | |
| 354 | /* |
| 355 | * Issue iocb command to adapter |
| 356 | */ |
| 357 | lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, sizeof (IOCB_t)); |
| 358 | wmb(); |
| 359 | pring->stats.iocb_cmd++; |
| 360 | |
| 361 | /* |
| 362 | * If there is no completion routine to call, we can release the |
| 363 | * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF, |
| 364 | * that have no rsp ring completion, iocb_cmpl MUST be NULL. |
| 365 | */ |
| 366 | if (nextiocb->iocb_cmpl) |
| 367 | lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb); |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 368 | else |
| 369 | lpfc_sli_release_iocbq(phba, nextiocb); |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 370 | |
| 371 | /* |
| 372 | * Let the HBA know what IOCB slot will be the next one the |
| 373 | * driver will put a command into. |
| 374 | */ |
| 375 | pring->cmdidx = pring->next_cmdidx; |
James.Smart@Emulex.Com | f91b392 | 2005-10-28 20:29:28 -0400 | [diff] [blame] | 376 | writel(pring->cmdidx, phba->MBslimaddr |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 377 | + (SLIMOFF + (pring->ringno * 2)) * 4); |
| 378 | } |
| 379 | |
| 380 | static void |
| 381 | lpfc_sli_update_full_ring(struct lpfc_hba * phba, |
| 382 | struct lpfc_sli_ring *pring) |
| 383 | { |
| 384 | int ringno = pring->ringno; |
| 385 | |
| 386 | pring->flag |= LPFC_CALL_RING_AVAILABLE; |
| 387 | |
| 388 | wmb(); |
| 389 | |
| 390 | /* |
| 391 | * Set ring 'ringno' to SET R0CE_REQ in Chip Att register. |
| 392 | * The HBA will tell us when an IOCB entry is available. |
| 393 | */ |
| 394 | writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr); |
| 395 | readl(phba->CAregaddr); /* flush */ |
| 396 | |
| 397 | pring->stats.iocb_cmd_full++; |
| 398 | } |
| 399 | |
| 400 | static void |
| 401 | lpfc_sli_update_ring(struct lpfc_hba * phba, |
| 402 | struct lpfc_sli_ring *pring) |
| 403 | { |
| 404 | int ringno = pring->ringno; |
| 405 | |
| 406 | /* |
| 407 | * Tell the HBA that there is work to do in this ring. |
| 408 | */ |
| 409 | wmb(); |
| 410 | writel(CA_R0ATT << (ringno * 4), phba->CAregaddr); |
| 411 | readl(phba->CAregaddr); /* flush */ |
| 412 | } |
| 413 | |
| 414 | static void |
| 415 | lpfc_sli_resume_iocb(struct lpfc_hba * phba, struct lpfc_sli_ring * pring) |
| 416 | { |
| 417 | IOCB_t *iocb; |
| 418 | struct lpfc_iocbq *nextiocb; |
| 419 | |
| 420 | /* |
| 421 | * Check to see if: |
| 422 | * (a) there is anything on the txq to send |
| 423 | * (b) link is up |
| 424 | * (c) link attention events can be processed (fcp ring only) |
| 425 | * (d) IOCB processing is not blocked by the outstanding mbox command. |
| 426 | */ |
| 427 | if (pring->txq_cnt && |
| 428 | (phba->hba_state > LPFC_LINK_DOWN) && |
| 429 | (pring->ringno != phba->sli.fcp_ring || |
| 430 | phba->sli.sli_flag & LPFC_PROCESS_LA) && |
| 431 | !(pring->flag & LPFC_STOP_IOCB_MBX)) { |
| 432 | |
| 433 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && |
| 434 | (nextiocb = lpfc_sli_ringtx_get(phba, pring))) |
| 435 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); |
| 436 | |
| 437 | if (iocb) |
| 438 | lpfc_sli_update_ring(phba, pring); |
| 439 | else |
| 440 | lpfc_sli_update_full_ring(phba, pring); |
| 441 | } |
| 442 | |
| 443 | return; |
| 444 | } |
| 445 | |
| 446 | /* lpfc_sli_turn_on_ring is only called by lpfc_sli_handle_mb_event below */ |
| 447 | static void |
| 448 | lpfc_sli_turn_on_ring(struct lpfc_hba * phba, int ringno) |
| 449 | { |
James.Smart@Emulex.Com | 4cc2da1 | 2005-06-25 10:34:00 -0400 | [diff] [blame] | 450 | struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[ringno]; |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 451 | |
| 452 | /* If the ring is active, flag it */ |
| 453 | if (phba->sli.ring[ringno].cmdringaddr) { |
| 454 | if (phba->sli.ring[ringno].flag & LPFC_STOP_IOCB_MBX) { |
| 455 | phba->sli.ring[ringno].flag &= ~LPFC_STOP_IOCB_MBX; |
| 456 | /* |
| 457 | * Force update of the local copy of cmdGetInx |
| 458 | */ |
| 459 | phba->sli.ring[ringno].local_getidx |
| 460 | = le32_to_cpu(pgp->cmdGetInx); |
| 461 | spin_lock_irq(phba->host->host_lock); |
| 462 | lpfc_sli_resume_iocb(phba, &phba->sli.ring[ringno]); |
| 463 | spin_unlock_irq(phba->host->host_lock); |
| 464 | } |
| 465 | } |
| 466 | } |
| 467 | |
| 468 | static int |
| 469 | lpfc_sli_chk_mbx_command(uint8_t mbxCommand) |
| 470 | { |
| 471 | uint8_t ret; |
| 472 | |
| 473 | switch (mbxCommand) { |
| 474 | case MBX_LOAD_SM: |
| 475 | case MBX_READ_NV: |
| 476 | case MBX_WRITE_NV: |
| 477 | case MBX_RUN_BIU_DIAG: |
| 478 | case MBX_INIT_LINK: |
| 479 | case MBX_DOWN_LINK: |
| 480 | case MBX_CONFIG_LINK: |
| 481 | case MBX_CONFIG_RING: |
| 482 | case MBX_RESET_RING: |
| 483 | case MBX_READ_CONFIG: |
| 484 | case MBX_READ_RCONFIG: |
| 485 | case MBX_READ_SPARM: |
| 486 | case MBX_READ_STATUS: |
| 487 | case MBX_READ_RPI: |
| 488 | case MBX_READ_XRI: |
| 489 | case MBX_READ_REV: |
| 490 | case MBX_READ_LNK_STAT: |
| 491 | case MBX_REG_LOGIN: |
| 492 | case MBX_UNREG_LOGIN: |
| 493 | case MBX_READ_LA: |
| 494 | case MBX_CLEAR_LA: |
| 495 | case MBX_DUMP_MEMORY: |
| 496 | case MBX_DUMP_CONTEXT: |
| 497 | case MBX_RUN_DIAGS: |
| 498 | case MBX_RESTART: |
| 499 | case MBX_UPDATE_CFG: |
| 500 | case MBX_DOWN_LOAD: |
| 501 | case MBX_DEL_LD_ENTRY: |
| 502 | case MBX_RUN_PROGRAM: |
| 503 | case MBX_SET_MASK: |
| 504 | case MBX_SET_SLIM: |
| 505 | case MBX_UNREG_D_ID: |
| 506 | case MBX_CONFIG_FARP: |
| 507 | case MBX_LOAD_AREA: |
| 508 | case MBX_RUN_BIU_DIAG64: |
| 509 | case MBX_CONFIG_PORT: |
| 510 | case MBX_READ_SPARM64: |
| 511 | case MBX_READ_RPI64: |
| 512 | case MBX_REG_LOGIN64: |
| 513 | case MBX_READ_LA64: |
| 514 | case MBX_FLASH_WR_ULA: |
| 515 | case MBX_SET_DEBUG: |
| 516 | case MBX_LOAD_EXP_ROM: |
| 517 | ret = mbxCommand; |
| 518 | break; |
| 519 | default: |
| 520 | ret = MBX_SHUTDOWN; |
| 521 | break; |
| 522 | } |
| 523 | return (ret); |
| 524 | } |
| 525 | static void |
| 526 | lpfc_sli_wake_mbox_wait(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq) |
| 527 | { |
| 528 | wait_queue_head_t *pdone_q; |
| 529 | |
| 530 | /* |
| 531 | * If pdone_q is empty, the driver thread gave up waiting and |
| 532 | * continued running. |
| 533 | */ |
| 534 | pdone_q = (wait_queue_head_t *) pmboxq->context1; |
| 535 | if (pdone_q) |
| 536 | wake_up_interruptible(pdone_q); |
| 537 | return; |
| 538 | } |
| 539 | |
| 540 | void |
| 541 | lpfc_sli_def_mbox_cmpl(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb) |
| 542 | { |
| 543 | struct lpfc_dmabuf *mp; |
| 544 | mp = (struct lpfc_dmabuf *) (pmb->context1); |
| 545 | if (mp) { |
| 546 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| 547 | kfree(mp); |
| 548 | } |
| 549 | mempool_free( pmb, phba->mbox_mem_pool); |
| 550 | return; |
| 551 | } |
| 552 | |
| 553 | int |
| 554 | lpfc_sli_handle_mb_event(struct lpfc_hba * phba) |
| 555 | { |
| 556 | MAILBOX_t *mbox; |
| 557 | MAILBOX_t *pmbox; |
| 558 | LPFC_MBOXQ_t *pmb; |
| 559 | struct lpfc_sli *psli; |
| 560 | int i, rc; |
| 561 | uint32_t process_next; |
| 562 | |
| 563 | psli = &phba->sli; |
| 564 | /* We should only get here if we are in SLI2 mode */ |
| 565 | if (!(phba->sli.sli_flag & LPFC_SLI2_ACTIVE)) { |
| 566 | return (1); |
| 567 | } |
| 568 | |
| 569 | phba->sli.slistat.mbox_event++; |
| 570 | |
| 571 | /* Get a Mailbox buffer to setup mailbox commands for callback */ |
| 572 | if ((pmb = phba->sli.mbox_active)) { |
| 573 | pmbox = &pmb->mb; |
James.Smart@Emulex.Com | 4cc2da1 | 2005-06-25 10:34:00 -0400 | [diff] [blame] | 574 | mbox = &phba->slim2p->mbx; |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 575 | |
| 576 | /* First check out the status word */ |
| 577 | lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof (uint32_t)); |
| 578 | |
| 579 | /* Sanity check to ensure the host owns the mailbox */ |
| 580 | if (pmbox->mbxOwner != OWN_HOST) { |
| 581 | /* Lets try for a while */ |
| 582 | for (i = 0; i < 10240; i++) { |
| 583 | /* First copy command data */ |
| 584 | lpfc_sli_pcimem_bcopy(mbox, pmbox, |
| 585 | sizeof (uint32_t)); |
| 586 | if (pmbox->mbxOwner == OWN_HOST) |
| 587 | goto mbout; |
| 588 | } |
| 589 | /* Stray Mailbox Interrupt, mbxCommand <cmd> mbxStatus |
| 590 | <status> */ |
| 591 | lpfc_printf_log(phba, |
| 592 | KERN_ERR, |
| 593 | LOG_MBOX | LOG_SLI, |
| 594 | "%d:0304 Stray Mailbox Interrupt " |
| 595 | "mbxCommand x%x mbxStatus x%x\n", |
| 596 | phba->brd_no, |
| 597 | pmbox->mbxCommand, |
| 598 | pmbox->mbxStatus); |
| 599 | |
| 600 | spin_lock_irq(phba->host->host_lock); |
| 601 | phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE; |
| 602 | spin_unlock_irq(phba->host->host_lock); |
| 603 | return (1); |
| 604 | } |
| 605 | |
| 606 | mbout: |
| 607 | del_timer_sync(&phba->sli.mbox_tmo); |
| 608 | phba->work_hba_events &= ~WORKER_MBOX_TMO; |
| 609 | |
| 610 | /* |
| 611 | * It is a fatal error if unknown mbox command completion. |
| 612 | */ |
| 613 | if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) == |
| 614 | MBX_SHUTDOWN) { |
| 615 | |
| 616 | /* Unknow mailbox command compl */ |
| 617 | lpfc_printf_log(phba, |
| 618 | KERN_ERR, |
| 619 | LOG_MBOX | LOG_SLI, |
| 620 | "%d:0323 Unknown Mailbox command %x Cmpl\n", |
| 621 | phba->brd_no, |
| 622 | pmbox->mbxCommand); |
| 623 | phba->hba_state = LPFC_HBA_ERROR; |
| 624 | phba->work_hs = HS_FFER3; |
| 625 | lpfc_handle_eratt(phba); |
| 626 | return (0); |
| 627 | } |
| 628 | |
| 629 | phba->sli.mbox_active = NULL; |
| 630 | if (pmbox->mbxStatus) { |
| 631 | phba->sli.slistat.mbox_stat_err++; |
| 632 | if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) { |
| 633 | /* Mbox cmd cmpl error - RETRYing */ |
| 634 | lpfc_printf_log(phba, |
| 635 | KERN_INFO, |
| 636 | LOG_MBOX | LOG_SLI, |
| 637 | "%d:0305 Mbox cmd cmpl error - " |
| 638 | "RETRYing Data: x%x x%x x%x x%x\n", |
| 639 | phba->brd_no, |
| 640 | pmbox->mbxCommand, |
| 641 | pmbox->mbxStatus, |
| 642 | pmbox->un.varWords[0], |
| 643 | phba->hba_state); |
| 644 | pmbox->mbxStatus = 0; |
| 645 | pmbox->mbxOwner = OWN_HOST; |
| 646 | spin_lock_irq(phba->host->host_lock); |
| 647 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
| 648 | spin_unlock_irq(phba->host->host_lock); |
| 649 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
| 650 | if (rc == MBX_SUCCESS) |
| 651 | return (0); |
| 652 | } |
| 653 | } |
| 654 | |
| 655 | /* Mailbox cmd <cmd> Cmpl <cmpl> */ |
| 656 | lpfc_printf_log(phba, |
| 657 | KERN_INFO, |
| 658 | LOG_MBOX | LOG_SLI, |
| 659 | "%d:0307 Mailbox cmd x%x Cmpl x%p " |
| 660 | "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n", |
| 661 | phba->brd_no, |
| 662 | pmbox->mbxCommand, |
| 663 | pmb->mbox_cmpl, |
| 664 | *((uint32_t *) pmbox), |
| 665 | pmbox->un.varWords[0], |
| 666 | pmbox->un.varWords[1], |
| 667 | pmbox->un.varWords[2], |
| 668 | pmbox->un.varWords[3], |
| 669 | pmbox->un.varWords[4], |
| 670 | pmbox->un.varWords[5], |
| 671 | pmbox->un.varWords[6], |
| 672 | pmbox->un.varWords[7]); |
| 673 | |
| 674 | if (pmb->mbox_cmpl) { |
| 675 | lpfc_sli_pcimem_bcopy(mbox, pmbox, MAILBOX_CMD_SIZE); |
| 676 | pmb->mbox_cmpl(phba,pmb); |
| 677 | } |
| 678 | } |
| 679 | |
| 680 | |
| 681 | do { |
| 682 | process_next = 0; /* by default don't loop */ |
| 683 | spin_lock_irq(phba->host->host_lock); |
| 684 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
| 685 | |
| 686 | /* Process next mailbox command if there is one */ |
| 687 | if ((pmb = lpfc_mbox_get(phba))) { |
| 688 | spin_unlock_irq(phba->host->host_lock); |
| 689 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT); |
| 690 | if (rc == MBX_NOT_FINISHED) { |
| 691 | pmb->mb.mbxStatus = MBX_NOT_FINISHED; |
| 692 | pmb->mbox_cmpl(phba,pmb); |
| 693 | process_next = 1; |
| 694 | continue; /* loop back */ |
| 695 | } |
| 696 | } else { |
| 697 | spin_unlock_irq(phba->host->host_lock); |
| 698 | /* Turn on IOCB processing */ |
| 699 | for (i = 0; i < phba->sli.num_rings; i++) { |
| 700 | lpfc_sli_turn_on_ring(phba, i); |
| 701 | } |
| 702 | |
| 703 | /* Free any lpfc_dmabuf's waiting for mbox cmd cmpls */ |
| 704 | while (!list_empty(&phba->freebufList)) { |
| 705 | struct lpfc_dmabuf *mp; |
| 706 | |
| 707 | mp = NULL; |
| 708 | list_remove_head((&phba->freebufList), |
| 709 | mp, |
| 710 | struct lpfc_dmabuf, |
| 711 | list); |
| 712 | if (mp) { |
| 713 | lpfc_mbuf_free(phba, mp->virt, |
| 714 | mp->phys); |
| 715 | kfree(mp); |
| 716 | } |
| 717 | } |
| 718 | } |
| 719 | |
| 720 | } while (process_next); |
| 721 | |
| 722 | return (0); |
| 723 | } |
| 724 | static int |
| 725 | lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
| 726 | struct lpfc_iocbq *saveq) |
| 727 | { |
| 728 | IOCB_t * irsp; |
| 729 | WORD5 * w5p; |
| 730 | uint32_t Rctl, Type; |
| 731 | uint32_t match, i; |
| 732 | |
| 733 | match = 0; |
| 734 | irsp = &(saveq->iocb); |
| 735 | if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) |
| 736 | || (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX)) { |
| 737 | Rctl = FC_ELS_REQ; |
| 738 | Type = FC_ELS_DATA; |
| 739 | } else { |
| 740 | w5p = |
| 741 | (WORD5 *) & (saveq->iocb.un. |
| 742 | ulpWord[5]); |
| 743 | Rctl = w5p->hcsw.Rctl; |
| 744 | Type = w5p->hcsw.Type; |
| 745 | |
| 746 | /* Firmware Workaround */ |
| 747 | if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) && |
| 748 | (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX)) { |
| 749 | Rctl = FC_ELS_REQ; |
| 750 | Type = FC_ELS_DATA; |
| 751 | w5p->hcsw.Rctl = Rctl; |
| 752 | w5p->hcsw.Type = Type; |
| 753 | } |
| 754 | } |
| 755 | /* unSolicited Responses */ |
| 756 | if (pring->prt[0].profile) { |
| 757 | (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring, saveq); |
| 758 | match = 1; |
| 759 | } else { |
| 760 | /* We must search, based on rctl / type |
| 761 | for the right routine */ |
| 762 | for (i = 0; i < pring->num_mask; |
| 763 | i++) { |
| 764 | if ((pring->prt[i].rctl == |
| 765 | Rctl) |
| 766 | && (pring->prt[i]. |
| 767 | type == Type)) { |
| 768 | (pring->prt[i].lpfc_sli_rcv_unsol_event) |
| 769 | (phba, pring, saveq); |
| 770 | match = 1; |
| 771 | break; |
| 772 | } |
| 773 | } |
| 774 | } |
| 775 | if (match == 0) { |
| 776 | /* Unexpected Rctl / Type received */ |
| 777 | /* Ring <ringno> handler: unexpected |
| 778 | Rctl <Rctl> Type <Type> received */ |
| 779 | lpfc_printf_log(phba, |
| 780 | KERN_WARNING, |
| 781 | LOG_SLI, |
| 782 | "%d:0313 Ring %d handler: unexpected Rctl x%x " |
| 783 | "Type x%x received \n", |
| 784 | phba->brd_no, |
| 785 | pring->ringno, |
| 786 | Rctl, |
| 787 | Type); |
| 788 | } |
| 789 | return(1); |
| 790 | } |
| 791 | |
| 792 | static struct lpfc_iocbq * |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 793 | lpfc_sli_iocbq_lookup(struct lpfc_hba * phba, |
| 794 | struct lpfc_sli_ring * pring, |
| 795 | struct lpfc_iocbq * prspiocb) |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 796 | { |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 797 | struct lpfc_iocbq *cmd_iocb = NULL; |
| 798 | uint16_t iotag; |
| 799 | |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 800 | iotag = prspiocb->iocb.ulpIoTag; |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 801 | |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 802 | if (iotag != 0 && iotag <= phba->sli.last_iotag) { |
| 803 | cmd_iocb = phba->sli.iocbq_lookup[iotag]; |
| 804 | list_del(&cmd_iocb->list); |
| 805 | pring->txcmplq_cnt--; |
| 806 | return cmd_iocb; |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 807 | } |
| 808 | |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 809 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 810 | "%d:0317 iotag x%x is out off " |
| 811 | "range: max iotag x%x wd0 x%x\n", |
| 812 | phba->brd_no, iotag, |
| 813 | phba->sli.last_iotag, |
| 814 | *(((uint32_t *) &prspiocb->iocb) + 7)); |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 815 | return NULL; |
| 816 | } |
| 817 | |
| 818 | static int |
| 819 | lpfc_sli_process_sol_iocb(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, |
| 820 | struct lpfc_iocbq *saveq) |
| 821 | { |
| 822 | struct lpfc_iocbq * cmdiocbp; |
| 823 | int rc = 1; |
| 824 | unsigned long iflag; |
| 825 | |
| 826 | /* Based on the iotag field, get the cmd IOCB from the txcmplq */ |
| 827 | spin_lock_irqsave(phba->host->host_lock, iflag); |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 828 | cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq); |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 829 | if (cmdiocbp) { |
| 830 | if (cmdiocbp->iocb_cmpl) { |
| 831 | /* |
| 832 | * Post all ELS completions to the worker thread. |
| 833 | * All other are passed to the completion callback. |
| 834 | */ |
| 835 | if (pring->ringno == LPFC_ELS_RING) { |
| 836 | spin_unlock_irqrestore(phba->host->host_lock, |
| 837 | iflag); |
| 838 | (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq); |
| 839 | spin_lock_irqsave(phba->host->host_lock, iflag); |
| 840 | } |
| 841 | else { |
| 842 | if (cmdiocbp->iocb_flag & LPFC_IO_POLL) |
| 843 | rc = 0; |
| 844 | |
| 845 | spin_unlock_irqrestore(phba->host->host_lock, |
| 846 | iflag); |
| 847 | (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq); |
| 848 | spin_lock_irqsave(phba->host->host_lock, iflag); |
| 849 | } |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 850 | } else |
| 851 | lpfc_sli_release_iocbq(phba, cmdiocbp); |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 852 | } else { |
| 853 | /* |
| 854 | * Unknown initiating command based on the response iotag. |
| 855 | * This could be the case on the ELS ring because of |
| 856 | * lpfc_els_abort(). |
| 857 | */ |
| 858 | if (pring->ringno != LPFC_ELS_RING) { |
| 859 | /* |
| 860 | * Ring <ringno> handler: unexpected completion IoTag |
| 861 | * <IoTag> |
| 862 | */ |
| 863 | lpfc_printf_log(phba, |
| 864 | KERN_WARNING, |
| 865 | LOG_SLI, |
| 866 | "%d:0322 Ring %d handler: unexpected " |
| 867 | "completion IoTag x%x Data: x%x x%x x%x x%x\n", |
| 868 | phba->brd_no, |
| 869 | pring->ringno, |
| 870 | saveq->iocb.ulpIoTag, |
| 871 | saveq->iocb.ulpStatus, |
| 872 | saveq->iocb.un.ulpWord[4], |
| 873 | saveq->iocb.ulpCommand, |
| 874 | saveq->iocb.ulpContext); |
| 875 | } |
| 876 | } |
| 877 | spin_unlock_irqrestore(phba->host->host_lock, iflag); |
| 878 | return rc; |
| 879 | } |
| 880 | |
| 881 | /* |
| 882 | * This routine presumes LPFC_FCP_RING handling and doesn't bother |
| 883 | * to check it explicitly. |
| 884 | */ |
| 885 | static int |
| 886 | lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba, |
| 887 | struct lpfc_sli_ring * pring, uint32_t mask) |
| 888 | { |
James.Smart@Emulex.Com | 4cc2da1 | 2005-06-25 10:34:00 -0400 | [diff] [blame] | 889 | struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno]; |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 890 | IOCB_t *irsp = NULL; |
James.Smart@Emulex.Com | 87f6eaf | 2005-06-25 10:34:13 -0400 | [diff] [blame] | 891 | IOCB_t *entry = NULL; |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 892 | struct lpfc_iocbq *cmdiocbq = NULL; |
| 893 | struct lpfc_iocbq rspiocbq; |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 894 | uint32_t status; |
| 895 | uint32_t portRspPut, portRspMax; |
| 896 | int rc = 1; |
| 897 | lpfc_iocb_type type; |
| 898 | unsigned long iflag; |
| 899 | uint32_t rsp_cmpl = 0; |
| 900 | void __iomem *to_slim; |
| 901 | |
| 902 | spin_lock_irqsave(phba->host->host_lock, iflag); |
| 903 | pring->stats.iocb_event++; |
| 904 | |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 905 | /* |
| 906 | * The next available response entry should never exceed the maximum |
| 907 | * entries. If it does, treat it as an adapter hardware error. |
| 908 | */ |
| 909 | portRspMax = pring->numRiocb; |
| 910 | portRspPut = le32_to_cpu(pgp->rspPutInx); |
| 911 | if (unlikely(portRspPut >= portRspMax)) { |
| 912 | /* |
| 913 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger then |
| 914 | * rsp ring <portRspMax> |
| 915 | */ |
| 916 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
| 917 | "%d:0312 Ring %d handler: portRspPut %d " |
| 918 | "is bigger then rsp ring %d\n", |
| 919 | phba->brd_no, pring->ringno, portRspPut, |
| 920 | portRspMax); |
| 921 | |
| 922 | phba->hba_state = LPFC_HBA_ERROR; |
| 923 | |
| 924 | /* All error attention handlers are posted to worker thread */ |
| 925 | phba->work_ha |= HA_ERATT; |
| 926 | phba->work_hs = HS_FFER3; |
| 927 | if (phba->work_wait) |
| 928 | wake_up(phba->work_wait); |
| 929 | |
| 930 | spin_unlock_irqrestore(phba->host->host_lock, iflag); |
| 931 | return 1; |
| 932 | } |
| 933 | |
| 934 | rmb(); |
| 935 | while (pring->rspidx != portRspPut) { |
James.Smart@Emulex.Com | 87f6eaf | 2005-06-25 10:34:13 -0400 | [diff] [blame] | 936 | /* |
| 937 | * Fetch an entry off the ring and copy it into a local data |
| 938 | * structure. The copy involves a byte-swap since the |
| 939 | * network byte order and pci byte orders are different. |
| 940 | */ |
| 941 | entry = (IOCB_t *) IOCB_ENTRY(pring->rspringaddr, pring->rspidx); |
| 942 | lpfc_sli_pcimem_bcopy((uint32_t *) entry, |
| 943 | (uint32_t *) &rspiocbq.iocb, |
| 944 | sizeof (IOCB_t)); |
| 945 | irsp = &rspiocbq.iocb; |
| 946 | |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 947 | type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK); |
| 948 | pring->stats.iocb_rsp++; |
| 949 | rsp_cmpl++; |
| 950 | |
| 951 | if (unlikely(irsp->ulpStatus)) { |
| 952 | /* Rsp ring <ringno> error: IOCB */ |
| 953 | lpfc_printf_log(phba, KERN_WARNING, LOG_SLI, |
| 954 | "%d:0326 Rsp Ring %d error: IOCB Data: " |
| 955 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", |
| 956 | phba->brd_no, pring->ringno, |
| 957 | irsp->un.ulpWord[0], irsp->un.ulpWord[1], |
| 958 | irsp->un.ulpWord[2], irsp->un.ulpWord[3], |
| 959 | irsp->un.ulpWord[4], irsp->un.ulpWord[5], |
| 960 | *(((uint32_t *) irsp) + 6), |
| 961 | *(((uint32_t *) irsp) + 7)); |
| 962 | } |
| 963 | |
| 964 | switch (type) { |
| 965 | case LPFC_ABORT_IOCB: |
| 966 | case LPFC_SOL_IOCB: |
| 967 | /* |
| 968 | * Idle exchange closed via ABTS from port. No iocb |
| 969 | * resources need to be recovered. |
| 970 | */ |
| 971 | if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) { |
| 972 | printk(KERN_INFO "%s: IOCB cmd 0x%x processed. " |
| 973 | "Skipping completion\n", __FUNCTION__, |
| 974 | irsp->ulpCommand); |
| 975 | break; |
| 976 | } |
| 977 | |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 978 | cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring, |
| 979 | &rspiocbq); |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 980 | if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) { |
| 981 | spin_unlock_irqrestore( |
| 982 | phba->host->host_lock, iflag); |
| 983 | (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, |
| 984 | &rspiocbq); |
| 985 | spin_lock_irqsave(phba->host->host_lock, |
| 986 | iflag); |
| 987 | } |
| 988 | break; |
| 989 | default: |
| 990 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { |
| 991 | char adaptermsg[LPFC_MAX_ADPTMSG]; |
| 992 | memset(adaptermsg, 0, LPFC_MAX_ADPTMSG); |
| 993 | memcpy(&adaptermsg[0], (uint8_t *) irsp, |
| 994 | MAX_MSG_DATA); |
| 995 | dev_warn(&((phba->pcidev)->dev), "lpfc%d: %s", |
| 996 | phba->brd_no, adaptermsg); |
| 997 | } else { |
| 998 | /* Unknown IOCB command */ |
| 999 | lpfc_printf_log(phba, KERN_ERR, LOG_SLI, |
| 1000 | "%d:0321 Unknown IOCB command " |
| 1001 | "Data: x%x, x%x x%x x%x x%x\n", |
| 1002 | phba->brd_no, type, irsp->ulpCommand, |
| 1003 | irsp->ulpStatus, irsp->ulpIoTag, |
| 1004 | irsp->ulpContext); |
| 1005 | } |
| 1006 | break; |
| 1007 | } |
| 1008 | |
| 1009 | /* |
| 1010 | * The response IOCB has been processed. Update the ring |
| 1011 | * pointer in SLIM. If the port response put pointer has not |
| 1012 | * been updated, sync the pgp->rspPutInx and fetch the new port |
| 1013 | * response put pointer. |
| 1014 | */ |
| 1015 | if (++pring->rspidx >= portRspMax) |
| 1016 | pring->rspidx = 0; |
| 1017 | |
| 1018 | to_slim = phba->MBslimaddr + |
| 1019 | (SLIMOFF + (pring->ringno * 2) + 1) * 4; |
James.Smart@Emulex.Com | f91b392 | 2005-10-28 20:29:28 -0400 | [diff] [blame] | 1020 | writel(pring->rspidx, to_slim); |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 1021 | |
| 1022 | if (pring->rspidx == portRspPut) |
| 1023 | portRspPut = le32_to_cpu(pgp->rspPutInx); |
| 1024 | } |
| 1025 | |
| 1026 | if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) { |
| 1027 | pring->stats.iocb_rsp_full++; |
| 1028 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); |
| 1029 | writel(status, phba->CAregaddr); |
| 1030 | readl(phba->CAregaddr); |
| 1031 | } |
| 1032 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { |
| 1033 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; |
| 1034 | pring->stats.iocb_cmd_empty++; |
| 1035 | |
| 1036 | /* Force update of the local copy of cmdGetInx */ |
| 1037 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); |
| 1038 | lpfc_sli_resume_iocb(phba, pring); |
| 1039 | |
| 1040 | if ((pring->lpfc_sli_cmd_available)) |
| 1041 | (pring->lpfc_sli_cmd_available) (phba, pring); |
| 1042 | |
| 1043 | } |
| 1044 | |
| 1045 | spin_unlock_irqrestore(phba->host->host_lock, iflag); |
| 1046 | return rc; |
| 1047 | } |
| 1048 | |
| 1049 | |
| 1050 | int |
| 1051 | lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba, |
| 1052 | struct lpfc_sli_ring * pring, uint32_t mask) |
| 1053 | { |
| 1054 | IOCB_t *entry; |
| 1055 | IOCB_t *irsp = NULL; |
| 1056 | struct lpfc_iocbq *rspiocbp = NULL; |
| 1057 | struct lpfc_iocbq *next_iocb; |
| 1058 | struct lpfc_iocbq *cmdiocbp; |
| 1059 | struct lpfc_iocbq *saveq; |
| 1060 | struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list; |
James.Smart@Emulex.Com | 4cc2da1 | 2005-06-25 10:34:00 -0400 | [diff] [blame] | 1061 | struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno]; |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 1062 | uint8_t iocb_cmd_type; |
| 1063 | lpfc_iocb_type type; |
| 1064 | uint32_t status, free_saveq; |
| 1065 | uint32_t portRspPut, portRspMax; |
| 1066 | int rc = 1; |
| 1067 | unsigned long iflag; |
| 1068 | void __iomem *to_slim; |
| 1069 | |
| 1070 | spin_lock_irqsave(phba->host->host_lock, iflag); |
| 1071 | pring->stats.iocb_event++; |
| 1072 | |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 1073 | /* |
| 1074 | * The next available response entry should never exceed the maximum |
| 1075 | * entries. If it does, treat it as an adapter hardware error. |
| 1076 | */ |
| 1077 | portRspMax = pring->numRiocb; |
| 1078 | portRspPut = le32_to_cpu(pgp->rspPutInx); |
| 1079 | if (portRspPut >= portRspMax) { |
| 1080 | /* |
| 1081 | * Ring <ringno> handler: portRspPut <portRspPut> is bigger then |
| 1082 | * rsp ring <portRspMax> |
| 1083 | */ |
| 1084 | lpfc_printf_log(phba, |
| 1085 | KERN_ERR, |
| 1086 | LOG_SLI, |
| 1087 | "%d:0312 Ring %d handler: portRspPut %d " |
| 1088 | "is bigger then rsp ring %d\n", |
| 1089 | phba->brd_no, |
| 1090 | pring->ringno, portRspPut, portRspMax); |
| 1091 | |
| 1092 | phba->hba_state = LPFC_HBA_ERROR; |
| 1093 | spin_unlock_irqrestore(phba->host->host_lock, iflag); |
| 1094 | |
| 1095 | phba->work_hs = HS_FFER3; |
| 1096 | lpfc_handle_eratt(phba); |
| 1097 | |
| 1098 | return 1; |
| 1099 | } |
| 1100 | |
| 1101 | rmb(); |
| 1102 | lpfc_iocb_list = &phba->lpfc_iocb_list; |
| 1103 | while (pring->rspidx != portRspPut) { |
| 1104 | /* |
| 1105 | * Build a completion list and call the appropriate handler. |
| 1106 | * The process is to get the next available response iocb, get |
| 1107 | * a free iocb from the list, copy the response data into the |
| 1108 | * free iocb, insert to the continuation list, and update the |
| 1109 | * next response index to slim. This process makes response |
| 1110 | * iocb's in the ring available to DMA as fast as possible but |
| 1111 | * pays a penalty for a copy operation. Since the iocb is |
| 1112 | * only 32 bytes, this penalty is considered small relative to |
| 1113 | * the PCI reads for register values and a slim write. When |
| 1114 | * the ulpLe field is set, the entire Command has been |
| 1115 | * received. |
| 1116 | */ |
| 1117 | entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx); |
| 1118 | list_remove_head(lpfc_iocb_list, rspiocbp, struct lpfc_iocbq, |
| 1119 | list); |
| 1120 | if (rspiocbp == NULL) { |
| 1121 | printk(KERN_ERR "%s: out of buffers! Failing " |
| 1122 | "completion.\n", __FUNCTION__); |
| 1123 | break; |
| 1124 | } |
| 1125 | |
| 1126 | lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb, sizeof (IOCB_t)); |
| 1127 | irsp = &rspiocbp->iocb; |
| 1128 | |
| 1129 | if (++pring->rspidx >= portRspMax) |
| 1130 | pring->rspidx = 0; |
| 1131 | |
| 1132 | to_slim = phba->MBslimaddr + (SLIMOFF + (pring->ringno * 2) |
| 1133 | + 1) * 4; |
James.Smart@Emulex.Com | f91b392 | 2005-10-28 20:29:28 -0400 | [diff] [blame] | 1134 | writel(pring->rspidx, to_slim); |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 1135 | |
| 1136 | if (list_empty(&(pring->iocb_continueq))) { |
| 1137 | list_add(&rspiocbp->list, &(pring->iocb_continueq)); |
| 1138 | } else { |
| 1139 | list_add_tail(&rspiocbp->list, |
| 1140 | &(pring->iocb_continueq)); |
| 1141 | } |
| 1142 | |
| 1143 | pring->iocb_continueq_cnt++; |
| 1144 | if (irsp->ulpLe) { |
| 1145 | /* |
| 1146 | * By default, the driver expects to free all resources |
| 1147 | * associated with this iocb completion. |
| 1148 | */ |
| 1149 | free_saveq = 1; |
| 1150 | saveq = list_get_first(&pring->iocb_continueq, |
| 1151 | struct lpfc_iocbq, list); |
| 1152 | irsp = &(saveq->iocb); |
| 1153 | list_del_init(&pring->iocb_continueq); |
| 1154 | pring->iocb_continueq_cnt = 0; |
| 1155 | |
| 1156 | pring->stats.iocb_rsp++; |
| 1157 | |
| 1158 | if (irsp->ulpStatus) { |
| 1159 | /* Rsp ring <ringno> error: IOCB */ |
| 1160 | lpfc_printf_log(phba, |
| 1161 | KERN_WARNING, |
| 1162 | LOG_SLI, |
| 1163 | "%d:0328 Rsp Ring %d error: IOCB Data: " |
| 1164 | "x%x x%x x%x x%x x%x x%x x%x x%x\n", |
| 1165 | phba->brd_no, |
| 1166 | pring->ringno, |
| 1167 | irsp->un.ulpWord[0], |
| 1168 | irsp->un.ulpWord[1], |
| 1169 | irsp->un.ulpWord[2], |
| 1170 | irsp->un.ulpWord[3], |
| 1171 | irsp->un.ulpWord[4], |
| 1172 | irsp->un.ulpWord[5], |
| 1173 | *(((uint32_t *) irsp) + 6), |
| 1174 | *(((uint32_t *) irsp) + 7)); |
| 1175 | } |
| 1176 | |
| 1177 | /* |
| 1178 | * Fetch the IOCB command type and call the correct |
| 1179 | * completion routine. Solicited and Unsolicited |
| 1180 | * IOCBs on the ELS ring get freed back to the |
| 1181 | * lpfc_iocb_list by the discovery kernel thread. |
| 1182 | */ |
| 1183 | iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK; |
| 1184 | type = lpfc_sli_iocb_cmd_type(iocb_cmd_type); |
| 1185 | if (type == LPFC_SOL_IOCB) { |
| 1186 | spin_unlock_irqrestore(phba->host->host_lock, |
| 1187 | iflag); |
| 1188 | rc = lpfc_sli_process_sol_iocb(phba, pring, |
| 1189 | saveq); |
| 1190 | spin_lock_irqsave(phba->host->host_lock, iflag); |
| 1191 | } else if (type == LPFC_UNSOL_IOCB) { |
| 1192 | spin_unlock_irqrestore(phba->host->host_lock, |
| 1193 | iflag); |
| 1194 | rc = lpfc_sli_process_unsol_iocb(phba, pring, |
| 1195 | saveq); |
| 1196 | spin_lock_irqsave(phba->host->host_lock, iflag); |
| 1197 | } else if (type == LPFC_ABORT_IOCB) { |
| 1198 | if ((irsp->ulpCommand != CMD_XRI_ABORTED_CX) && |
| 1199 | ((cmdiocbp = |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 1200 | lpfc_sli_iocbq_lookup(phba, pring, |
| 1201 | saveq)))) { |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 1202 | /* Call the specified completion |
| 1203 | routine */ |
| 1204 | if (cmdiocbp->iocb_cmpl) { |
| 1205 | spin_unlock_irqrestore( |
| 1206 | phba->host->host_lock, |
| 1207 | iflag); |
| 1208 | (cmdiocbp->iocb_cmpl) (phba, |
| 1209 | cmdiocbp, saveq); |
| 1210 | spin_lock_irqsave( |
| 1211 | phba->host->host_lock, |
| 1212 | iflag); |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 1213 | } else |
| 1214 | lpfc_sli_release_iocbq(phba, |
| 1215 | cmdiocbp); |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 1216 | } |
| 1217 | } else if (type == LPFC_UNKNOWN_IOCB) { |
| 1218 | if (irsp->ulpCommand == CMD_ADAPTER_MSG) { |
| 1219 | |
| 1220 | char adaptermsg[LPFC_MAX_ADPTMSG]; |
| 1221 | |
| 1222 | memset(adaptermsg, 0, |
| 1223 | LPFC_MAX_ADPTMSG); |
| 1224 | memcpy(&adaptermsg[0], (uint8_t *) irsp, |
| 1225 | MAX_MSG_DATA); |
| 1226 | dev_warn(&((phba->pcidev)->dev), |
| 1227 | "lpfc%d: %s", |
| 1228 | phba->brd_no, adaptermsg); |
| 1229 | } else { |
| 1230 | /* Unknown IOCB command */ |
| 1231 | lpfc_printf_log(phba, |
| 1232 | KERN_ERR, |
| 1233 | LOG_SLI, |
| 1234 | "%d:0321 Unknown IOCB command " |
| 1235 | "Data: x%x x%x x%x x%x\n", |
| 1236 | phba->brd_no, |
| 1237 | irsp->ulpCommand, |
| 1238 | irsp->ulpStatus, |
| 1239 | irsp->ulpIoTag, |
| 1240 | irsp->ulpContext); |
| 1241 | } |
| 1242 | } |
| 1243 | |
| 1244 | if (free_saveq) { |
| 1245 | if (!list_empty(&saveq->list)) { |
| 1246 | list_for_each_entry_safe(rspiocbp, |
| 1247 | next_iocb, |
| 1248 | &saveq->list, |
| 1249 | list) { |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 1250 | lpfc_sli_release_iocbq(phba, |
| 1251 | rspiocbp); |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 1252 | } |
| 1253 | } |
| 1254 | |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 1255 | lpfc_sli_release_iocbq(phba, saveq); |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 1256 | } |
| 1257 | } |
| 1258 | |
| 1259 | /* |
| 1260 | * If the port response put pointer has not been updated, sync |
| 1261 | * the pgp->rspPutInx in the MAILBOX_tand fetch the new port |
| 1262 | * response put pointer. |
| 1263 | */ |
| 1264 | if (pring->rspidx == portRspPut) { |
| 1265 | portRspPut = le32_to_cpu(pgp->rspPutInx); |
| 1266 | } |
| 1267 | } /* while (pring->rspidx != portRspPut) */ |
| 1268 | |
| 1269 | if ((rspiocbp != 0) && (mask & HA_R0RE_REQ)) { |
| 1270 | /* At least one response entry has been freed */ |
| 1271 | pring->stats.iocb_rsp_full++; |
| 1272 | /* SET RxRE_RSP in Chip Att register */ |
| 1273 | status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4)); |
| 1274 | writel(status, phba->CAregaddr); |
| 1275 | readl(phba->CAregaddr); /* flush */ |
| 1276 | } |
| 1277 | if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) { |
| 1278 | pring->flag &= ~LPFC_CALL_RING_AVAILABLE; |
| 1279 | pring->stats.iocb_cmd_empty++; |
| 1280 | |
| 1281 | /* Force update of the local copy of cmdGetInx */ |
| 1282 | pring->local_getidx = le32_to_cpu(pgp->cmdGetInx); |
| 1283 | lpfc_sli_resume_iocb(phba, pring); |
| 1284 | |
| 1285 | if ((pring->lpfc_sli_cmd_available)) |
| 1286 | (pring->lpfc_sli_cmd_available) (phba, pring); |
| 1287 | |
| 1288 | } |
| 1289 | |
| 1290 | spin_unlock_irqrestore(phba->host->host_lock, iflag); |
| 1291 | return rc; |
| 1292 | } |
| 1293 | |
| 1294 | int |
| 1295 | lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring) |
| 1296 | { |
| 1297 | struct lpfc_iocbq *iocb, *next_iocb; |
| 1298 | IOCB_t *icmd = NULL, *cmd = NULL; |
| 1299 | int errcnt; |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 1300 | |
| 1301 | errcnt = 0; |
| 1302 | |
| 1303 | /* Error everything on txq and txcmplq |
| 1304 | * First do the txq. |
| 1305 | */ |
| 1306 | spin_lock_irq(phba->host->host_lock); |
| 1307 | list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { |
| 1308 | list_del_init(&iocb->list); |
| 1309 | if (iocb->iocb_cmpl) { |
| 1310 | icmd = &iocb->iocb; |
| 1311 | icmd->ulpStatus = IOSTAT_LOCAL_REJECT; |
| 1312 | icmd->un.ulpWord[4] = IOERR_SLI_ABORTED; |
| 1313 | spin_unlock_irq(phba->host->host_lock); |
| 1314 | (iocb->iocb_cmpl) (phba, iocb, iocb); |
| 1315 | spin_lock_irq(phba->host->host_lock); |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 1316 | } else |
| 1317 | lpfc_sli_release_iocbq(phba, iocb); |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 1318 | } |
| 1319 | pring->txq_cnt = 0; |
| 1320 | INIT_LIST_HEAD(&(pring->txq)); |
| 1321 | |
| 1322 | /* Next issue ABTS for everything on the txcmplq */ |
| 1323 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { |
| 1324 | cmd = &iocb->iocb; |
| 1325 | |
| 1326 | /* |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 1327 | * Imediate abort of IOCB, deque and call compl |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 1328 | */ |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 1329 | |
| 1330 | list_del_init(&iocb->list); |
| 1331 | pring->txcmplq_cnt--; |
| 1332 | |
| 1333 | if (iocb->iocb_cmpl) { |
| 1334 | cmd->ulpStatus = IOSTAT_LOCAL_REJECT; |
| 1335 | cmd->un.ulpWord[4] = IOERR_SLI_ABORTED; |
| 1336 | spin_unlock_irq(phba->host->host_lock); |
| 1337 | (iocb->iocb_cmpl) (phba, iocb, iocb); |
| 1338 | spin_lock_irq(phba->host->host_lock); |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 1339 | } else |
| 1340 | lpfc_sli_release_iocbq(phba, iocb); |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 1341 | } |
| 1342 | |
| 1343 | INIT_LIST_HEAD(&pring->txcmplq); |
| 1344 | pring->txcmplq_cnt = 0; |
| 1345 | spin_unlock_irq(phba->host->host_lock); |
| 1346 | |
| 1347 | return errcnt; |
| 1348 | } |
| 1349 | |
| 1350 | /****************************************************************************** |
| 1351 | * lpfc_sli_send_reset |
| 1352 | * |
| 1353 | * Note: After returning from this function, the HBA cannot be accessed for |
| 1354 | * 1 ms. Since we do not wish to delay in interrupt context, it is the |
| 1355 | * responsibility of the caller to perform the mdelay(1) and flush via readl(). |
| 1356 | ******************************************************************************/ |
| 1357 | static int |
| 1358 | lpfc_sli_send_reset(struct lpfc_hba * phba, uint16_t skip_post) |
| 1359 | { |
| 1360 | MAILBOX_t *swpmb; |
| 1361 | volatile uint32_t word0; |
| 1362 | void __iomem *to_slim; |
| 1363 | unsigned long flags = 0; |
| 1364 | |
| 1365 | spin_lock_irqsave(phba->host->host_lock, flags); |
| 1366 | |
| 1367 | /* A board reset must use REAL SLIM. */ |
| 1368 | phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE; |
| 1369 | |
| 1370 | word0 = 0; |
| 1371 | swpmb = (MAILBOX_t *) & word0; |
| 1372 | swpmb->mbxCommand = MBX_RESTART; |
| 1373 | swpmb->mbxHc = 1; |
| 1374 | |
| 1375 | to_slim = phba->MBslimaddr; |
| 1376 | writel(*(uint32_t *) swpmb, to_slim); |
| 1377 | readl(to_slim); /* flush */ |
| 1378 | |
| 1379 | /* Only skip post after fc_ffinit is completed */ |
| 1380 | if (skip_post) { |
| 1381 | word0 = 1; /* This is really setting up word1 */ |
| 1382 | } else { |
| 1383 | word0 = 0; /* This is really setting up word1 */ |
| 1384 | } |
| 1385 | to_slim = phba->MBslimaddr + sizeof (uint32_t); |
| 1386 | writel(*(uint32_t *) swpmb, to_slim); |
| 1387 | readl(to_slim); /* flush */ |
| 1388 | |
| 1389 | /* Turn off parity checking and serr during the physical reset */ |
| 1390 | pci_read_config_word(phba->pcidev, PCI_COMMAND, &phba->pci_cfg_value); |
| 1391 | pci_write_config_word(phba->pcidev, PCI_COMMAND, |
| 1392 | (phba->pci_cfg_value & |
| 1393 | ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR))); |
| 1394 | |
| 1395 | writel(HC_INITFF, phba->HCregaddr); |
| 1396 | |
| 1397 | phba->hba_state = LPFC_INIT_START; |
| 1398 | spin_unlock_irqrestore(phba->host->host_lock, flags); |
| 1399 | |
| 1400 | return 0; |
| 1401 | } |
| 1402 | |
| 1403 | static int |
| 1404 | lpfc_sli_brdreset(struct lpfc_hba * phba, uint16_t skip_post) |
| 1405 | { |
| 1406 | struct lpfc_sli_ring *pring; |
| 1407 | int i; |
| 1408 | struct lpfc_dmabuf *mp, *next_mp; |
| 1409 | unsigned long flags = 0; |
| 1410 | |
| 1411 | lpfc_sli_send_reset(phba, skip_post); |
| 1412 | mdelay(1); |
| 1413 | |
| 1414 | spin_lock_irqsave(phba->host->host_lock, flags); |
| 1415 | /* Risk the write on flush case ie no delay after the readl */ |
| 1416 | readl(phba->HCregaddr); /* flush */ |
| 1417 | /* Now toggle INITFF bit set by lpfc_sli_send_reset */ |
| 1418 | writel(0, phba->HCregaddr); |
| 1419 | readl(phba->HCregaddr); /* flush */ |
| 1420 | |
| 1421 | /* Restore PCI cmd register */ |
| 1422 | pci_write_config_word(phba->pcidev, PCI_COMMAND, phba->pci_cfg_value); |
| 1423 | |
| 1424 | /* perform board reset */ |
| 1425 | phba->fc_eventTag = 0; |
| 1426 | phba->fc_myDID = 0; |
| 1427 | phba->fc_prevDID = Mask_DID; |
| 1428 | |
| 1429 | /* Reset HBA */ |
| 1430 | lpfc_printf_log(phba, |
| 1431 | KERN_INFO, |
| 1432 | LOG_SLI, |
| 1433 | "%d:0325 Reset HBA Data: x%x x%x x%x\n", |
| 1434 | phba->brd_no, |
| 1435 | phba->hba_state, |
| 1436 | phba->sli.sli_flag, |
| 1437 | skip_post); |
| 1438 | |
| 1439 | /* Initialize relevant SLI info */ |
| 1440 | for (i = 0; i < phba->sli.num_rings; i++) { |
| 1441 | pring = &phba->sli.ring[i]; |
| 1442 | pring->flag = 0; |
| 1443 | pring->rspidx = 0; |
| 1444 | pring->next_cmdidx = 0; |
| 1445 | pring->local_getidx = 0; |
| 1446 | pring->cmdidx = 0; |
| 1447 | pring->missbufcnt = 0; |
| 1448 | } |
| 1449 | spin_unlock_irqrestore(phba->host->host_lock, flags); |
| 1450 | |
| 1451 | if (skip_post) { |
| 1452 | mdelay(100); |
| 1453 | } else { |
| 1454 | mdelay(2000); |
| 1455 | } |
| 1456 | |
| 1457 | spin_lock_irqsave(phba->host->host_lock, flags); |
| 1458 | /* Cleanup preposted buffers on the ELS ring */ |
| 1459 | pring = &phba->sli.ring[LPFC_ELS_RING]; |
| 1460 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { |
| 1461 | list_del(&mp->list); |
| 1462 | pring->postbufq_cnt--; |
| 1463 | lpfc_mbuf_free(phba, mp->virt, mp->phys); |
| 1464 | kfree(mp); |
| 1465 | } |
| 1466 | spin_unlock_irqrestore(phba->host->host_lock, flags); |
| 1467 | |
| 1468 | for (i = 0; i < phba->sli.num_rings; i++) |
| 1469 | lpfc_sli_abort_iocb_ring(phba, &phba->sli.ring[i]); |
| 1470 | |
| 1471 | return 0; |
| 1472 | } |
| 1473 | |
| 1474 | static int |
| 1475 | lpfc_sli_chipset_init(struct lpfc_hba *phba) |
| 1476 | { |
| 1477 | uint32_t status, i = 0; |
| 1478 | |
| 1479 | /* Read the HBA Host Status Register */ |
| 1480 | status = readl(phba->HSregaddr); |
| 1481 | |
| 1482 | /* Check status register to see what current state is */ |
| 1483 | i = 0; |
| 1484 | while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) { |
| 1485 | |
| 1486 | /* Check every 100ms for 5 retries, then every 500ms for 5, then |
| 1487 | * every 2.5 sec for 5, then reset board and every 2.5 sec for |
| 1488 | * 4. |
| 1489 | */ |
| 1490 | if (i++ >= 20) { |
| 1491 | /* Adapter failed to init, timeout, status reg |
| 1492 | <status> */ |
| 1493 | lpfc_printf_log(phba, |
| 1494 | KERN_ERR, |
| 1495 | LOG_INIT, |
| 1496 | "%d:0436 Adapter failed to init, " |
| 1497 | "timeout, status reg x%x\n", |
| 1498 | phba->brd_no, |
| 1499 | status); |
| 1500 | phba->hba_state = LPFC_HBA_ERROR; |
| 1501 | return -ETIMEDOUT; |
| 1502 | } |
| 1503 | |
| 1504 | /* Check to see if any errors occurred during init */ |
| 1505 | if (status & HS_FFERM) { |
| 1506 | /* ERROR: During chipset initialization */ |
| 1507 | /* Adapter failed to init, chipset, status reg |
| 1508 | <status> */ |
| 1509 | lpfc_printf_log(phba, |
| 1510 | KERN_ERR, |
| 1511 | LOG_INIT, |
| 1512 | "%d:0437 Adapter failed to init, " |
| 1513 | "chipset, status reg x%x\n", |
| 1514 | phba->brd_no, |
| 1515 | status); |
| 1516 | phba->hba_state = LPFC_HBA_ERROR; |
| 1517 | return -EIO; |
| 1518 | } |
| 1519 | |
| 1520 | if (i <= 5) { |
| 1521 | msleep(10); |
| 1522 | } else if (i <= 10) { |
| 1523 | msleep(500); |
| 1524 | } else { |
| 1525 | msleep(2500); |
| 1526 | } |
| 1527 | |
| 1528 | if (i == 15) { |
| 1529 | lpfc_sli_brdreset(phba, 0); |
| 1530 | } |
| 1531 | /* Read the HBA Host Status Register */ |
| 1532 | status = readl(phba->HSregaddr); |
| 1533 | } |
| 1534 | |
| 1535 | /* Check to see if any errors occurred during init */ |
| 1536 | if (status & HS_FFERM) { |
| 1537 | /* ERROR: During chipset initialization */ |
| 1538 | /* Adapter failed to init, chipset, status reg <status> */ |
| 1539 | lpfc_printf_log(phba, |
| 1540 | KERN_ERR, |
| 1541 | LOG_INIT, |
| 1542 | "%d:0438 Adapter failed to init, chipset, " |
| 1543 | "status reg x%x\n", |
| 1544 | phba->brd_no, |
| 1545 | status); |
| 1546 | phba->hba_state = LPFC_HBA_ERROR; |
| 1547 | return -EIO; |
| 1548 | } |
| 1549 | |
| 1550 | /* Clear all interrupt enable conditions */ |
| 1551 | writel(0, phba->HCregaddr); |
| 1552 | readl(phba->HCregaddr); /* flush */ |
| 1553 | |
| 1554 | /* setup host attn register */ |
| 1555 | writel(0xffffffff, phba->HAregaddr); |
| 1556 | readl(phba->HAregaddr); /* flush */ |
| 1557 | return 0; |
| 1558 | } |
| 1559 | |
| 1560 | int |
| 1561 | lpfc_sli_hba_setup(struct lpfc_hba * phba) |
| 1562 | { |
| 1563 | LPFC_MBOXQ_t *pmb; |
| 1564 | uint32_t resetcount = 0, rc = 0, done = 0; |
| 1565 | |
| 1566 | pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL); |
| 1567 | if (!pmb) { |
| 1568 | phba->hba_state = LPFC_HBA_ERROR; |
| 1569 | return -ENOMEM; |
| 1570 | } |
| 1571 | |
| 1572 | while (resetcount < 2 && !done) { |
| 1573 | phba->hba_state = 0; |
| 1574 | lpfc_sli_brdreset(phba, 0); |
| 1575 | msleep(2500); |
| 1576 | rc = lpfc_sli_chipset_init(phba); |
| 1577 | if (rc) |
| 1578 | break; |
| 1579 | |
| 1580 | resetcount++; |
| 1581 | |
| 1582 | /* Call pre CONFIG_PORT mailbox command initialization. A value of 0 |
| 1583 | * means the call was successful. Any other nonzero value is a failure, |
| 1584 | * but if ERESTART is returned, the driver may reset the HBA and try |
| 1585 | * again. |
| 1586 | */ |
| 1587 | rc = lpfc_config_port_prep(phba); |
| 1588 | if (rc == -ERESTART) { |
| 1589 | phba->hba_state = 0; |
| 1590 | continue; |
| 1591 | } else if (rc) { |
| 1592 | break; |
| 1593 | } |
| 1594 | |
| 1595 | phba->hba_state = LPFC_INIT_MBX_CMDS; |
| 1596 | lpfc_config_port(phba, pmb); |
| 1597 | rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL); |
| 1598 | if (rc == MBX_SUCCESS) |
| 1599 | done = 1; |
| 1600 | else { |
| 1601 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| 1602 | "%d:0442 Adapter failed to init, mbxCmd x%x " |
| 1603 | "CONFIG_PORT, mbxStatus x%x Data: x%x\n", |
| 1604 | phba->brd_no, pmb->mb.mbxCommand, |
| 1605 | pmb->mb.mbxStatus, 0); |
| 1606 | phba->sli.sli_flag &= ~LPFC_SLI2_ACTIVE; |
| 1607 | } |
| 1608 | } |
| 1609 | if (!done) |
| 1610 | goto lpfc_sli_hba_setup_error; |
| 1611 | |
| 1612 | rc = lpfc_sli_ring_map(phba, pmb); |
| 1613 | |
| 1614 | if (rc) |
| 1615 | goto lpfc_sli_hba_setup_error; |
| 1616 | |
| 1617 | phba->sli.sli_flag |= LPFC_PROCESS_LA; |
| 1618 | |
| 1619 | rc = lpfc_config_port_post(phba); |
| 1620 | if (rc) |
| 1621 | goto lpfc_sli_hba_setup_error; |
| 1622 | |
| 1623 | goto lpfc_sli_hba_setup_exit; |
| 1624 | lpfc_sli_hba_setup_error: |
| 1625 | phba->hba_state = LPFC_HBA_ERROR; |
| 1626 | lpfc_sli_hba_setup_exit: |
| 1627 | mempool_free(pmb, phba->mbox_mem_pool); |
| 1628 | return rc; |
| 1629 | } |
| 1630 | |
| 1631 | static void |
| 1632 | lpfc_mbox_abort(struct lpfc_hba * phba) |
| 1633 | { |
| 1634 | LPFC_MBOXQ_t *pmbox; |
| 1635 | MAILBOX_t *mb; |
| 1636 | |
| 1637 | if (phba->sli.mbox_active) { |
| 1638 | del_timer_sync(&phba->sli.mbox_tmo); |
| 1639 | phba->work_hba_events &= ~WORKER_MBOX_TMO; |
| 1640 | pmbox = phba->sli.mbox_active; |
| 1641 | mb = &pmbox->mb; |
| 1642 | phba->sli.mbox_active = NULL; |
| 1643 | if (pmbox->mbox_cmpl) { |
| 1644 | mb->mbxStatus = MBX_NOT_FINISHED; |
| 1645 | (pmbox->mbox_cmpl) (phba, pmbox); |
| 1646 | } |
| 1647 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
| 1648 | } |
| 1649 | |
| 1650 | /* Abort all the non active mailbox commands. */ |
| 1651 | spin_lock_irq(phba->host->host_lock); |
| 1652 | pmbox = lpfc_mbox_get(phba); |
| 1653 | while (pmbox) { |
| 1654 | mb = &pmbox->mb; |
| 1655 | if (pmbox->mbox_cmpl) { |
| 1656 | mb->mbxStatus = MBX_NOT_FINISHED; |
| 1657 | spin_unlock_irq(phba->host->host_lock); |
| 1658 | (pmbox->mbox_cmpl) (phba, pmbox); |
| 1659 | spin_lock_irq(phba->host->host_lock); |
| 1660 | } |
| 1661 | pmbox = lpfc_mbox_get(phba); |
| 1662 | } |
| 1663 | spin_unlock_irq(phba->host->host_lock); |
| 1664 | return; |
| 1665 | } |
| 1666 | |
| 1667 | /*! lpfc_mbox_timeout |
| 1668 | * |
| 1669 | * \pre |
| 1670 | * \post |
| 1671 | * \param hba Pointer to per struct lpfc_hba structure |
| 1672 | * \param l1 Pointer to the driver's mailbox queue. |
| 1673 | * \return |
| 1674 | * void |
| 1675 | * |
| 1676 | * \b Description: |
| 1677 | * |
| 1678 | * This routine handles mailbox timeout events at timer interrupt context. |
| 1679 | */ |
| 1680 | void |
| 1681 | lpfc_mbox_timeout(unsigned long ptr) |
| 1682 | { |
| 1683 | struct lpfc_hba *phba; |
| 1684 | unsigned long iflag; |
| 1685 | |
| 1686 | phba = (struct lpfc_hba *)ptr; |
| 1687 | spin_lock_irqsave(phba->host->host_lock, iflag); |
| 1688 | if (!(phba->work_hba_events & WORKER_MBOX_TMO)) { |
| 1689 | phba->work_hba_events |= WORKER_MBOX_TMO; |
| 1690 | if (phba->work_wait) |
| 1691 | wake_up(phba->work_wait); |
| 1692 | } |
| 1693 | spin_unlock_irqrestore(phba->host->host_lock, iflag); |
| 1694 | } |
| 1695 | |
| 1696 | void |
| 1697 | lpfc_mbox_timeout_handler(struct lpfc_hba *phba) |
| 1698 | { |
| 1699 | LPFC_MBOXQ_t *pmbox; |
| 1700 | MAILBOX_t *mb; |
| 1701 | |
| 1702 | spin_lock_irq(phba->host->host_lock); |
| 1703 | if (!(phba->work_hba_events & WORKER_MBOX_TMO)) { |
| 1704 | spin_unlock_irq(phba->host->host_lock); |
| 1705 | return; |
| 1706 | } |
| 1707 | |
James.Smart@Emulex.Com | db468d1 | 2005-06-25 10:34:08 -0400 | [diff] [blame] | 1708 | phba->work_hba_events &= ~WORKER_MBOX_TMO; |
| 1709 | |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 1710 | pmbox = phba->sli.mbox_active; |
| 1711 | mb = &pmbox->mb; |
| 1712 | |
| 1713 | /* Mbox cmd <mbxCommand> timeout */ |
| 1714 | lpfc_printf_log(phba, |
| 1715 | KERN_ERR, |
| 1716 | LOG_MBOX | LOG_SLI, |
| 1717 | "%d:0310 Mailbox command x%x timeout Data: x%x x%x x%p\n", |
| 1718 | phba->brd_no, |
| 1719 | mb->mbxCommand, |
| 1720 | phba->hba_state, |
| 1721 | phba->sli.sli_flag, |
| 1722 | phba->sli.mbox_active); |
| 1723 | |
James.Smart@Emulex.Com | db468d1 | 2005-06-25 10:34:08 -0400 | [diff] [blame] | 1724 | phba->sli.mbox_active = NULL; |
| 1725 | if (pmbox->mbox_cmpl) { |
| 1726 | mb->mbxStatus = MBX_NOT_FINISHED; |
| 1727 | spin_unlock_irq(phba->host->host_lock); |
| 1728 | (pmbox->mbox_cmpl) (phba, pmbox); |
| 1729 | spin_lock_irq(phba->host->host_lock); |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 1730 | } |
James.Smart@Emulex.Com | db468d1 | 2005-06-25 10:34:08 -0400 | [diff] [blame] | 1731 | phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 1732 | |
| 1733 | spin_unlock_irq(phba->host->host_lock); |
| 1734 | lpfc_mbox_abort(phba); |
| 1735 | return; |
| 1736 | } |
| 1737 | |
| 1738 | int |
| 1739 | lpfc_sli_issue_mbox(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmbox, uint32_t flag) |
| 1740 | { |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 1741 | MAILBOX_t *mb; |
| 1742 | struct lpfc_sli *psli; |
| 1743 | uint32_t status, evtctr; |
| 1744 | uint32_t ha_copy; |
| 1745 | int i; |
| 1746 | unsigned long drvr_flag = 0; |
| 1747 | volatile uint32_t word0, ldata; |
| 1748 | void __iomem *to_slim; |
| 1749 | |
| 1750 | psli = &phba->sli; |
| 1751 | |
| 1752 | spin_lock_irqsave(phba->host->host_lock, drvr_flag); |
| 1753 | |
| 1754 | |
| 1755 | mb = &pmbox->mb; |
| 1756 | status = MBX_SUCCESS; |
| 1757 | |
| 1758 | if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) { |
| 1759 | /* Polling for a mbox command when another one is already active |
| 1760 | * is not allowed in SLI. Also, the driver must have established |
| 1761 | * SLI2 mode to queue and process multiple mbox commands. |
| 1762 | */ |
| 1763 | |
| 1764 | if (flag & MBX_POLL) { |
| 1765 | spin_unlock_irqrestore(phba->host->host_lock, |
| 1766 | drvr_flag); |
| 1767 | |
| 1768 | /* Mbox command <mbxCommand> cannot issue */ |
| 1769 | LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag) |
| 1770 | return (MBX_NOT_FINISHED); |
| 1771 | } |
| 1772 | |
| 1773 | if (!(psli->sli_flag & LPFC_SLI2_ACTIVE)) { |
| 1774 | spin_unlock_irqrestore(phba->host->host_lock, |
| 1775 | drvr_flag); |
| 1776 | /* Mbox command <mbxCommand> cannot issue */ |
| 1777 | LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag) |
| 1778 | return (MBX_NOT_FINISHED); |
| 1779 | } |
| 1780 | |
| 1781 | /* Handle STOP IOCB processing flag. This is only meaningful |
| 1782 | * if we are not polling for mbox completion. |
| 1783 | */ |
| 1784 | if (flag & MBX_STOP_IOCB) { |
| 1785 | flag &= ~MBX_STOP_IOCB; |
| 1786 | /* Now flag each ring */ |
| 1787 | for (i = 0; i < psli->num_rings; i++) { |
| 1788 | /* If the ring is active, flag it */ |
| 1789 | if (psli->ring[i].cmdringaddr) { |
| 1790 | psli->ring[i].flag |= |
| 1791 | LPFC_STOP_IOCB_MBX; |
| 1792 | } |
| 1793 | } |
| 1794 | } |
| 1795 | |
| 1796 | /* Another mailbox command is still being processed, queue this |
| 1797 | * command to be processed later. |
| 1798 | */ |
| 1799 | lpfc_mbox_put(phba, pmbox); |
| 1800 | |
| 1801 | /* Mbox cmd issue - BUSY */ |
| 1802 | lpfc_printf_log(phba, |
| 1803 | KERN_INFO, |
| 1804 | LOG_MBOX | LOG_SLI, |
| 1805 | "%d:0308 Mbox cmd issue - BUSY Data: x%x x%x x%x x%x\n", |
| 1806 | phba->brd_no, |
| 1807 | mb->mbxCommand, |
| 1808 | phba->hba_state, |
| 1809 | psli->sli_flag, |
| 1810 | flag); |
| 1811 | |
| 1812 | psli->slistat.mbox_busy++; |
| 1813 | spin_unlock_irqrestore(phba->host->host_lock, |
| 1814 | drvr_flag); |
| 1815 | |
| 1816 | return (MBX_BUSY); |
| 1817 | } |
| 1818 | |
| 1819 | /* Handle STOP IOCB processing flag. This is only meaningful |
| 1820 | * if we are not polling for mbox completion. |
| 1821 | */ |
| 1822 | if (flag & MBX_STOP_IOCB) { |
| 1823 | flag &= ~MBX_STOP_IOCB; |
| 1824 | if (flag == MBX_NOWAIT) { |
| 1825 | /* Now flag each ring */ |
| 1826 | for (i = 0; i < psli->num_rings; i++) { |
| 1827 | /* If the ring is active, flag it */ |
| 1828 | if (psli->ring[i].cmdringaddr) { |
| 1829 | psli->ring[i].flag |= |
| 1830 | LPFC_STOP_IOCB_MBX; |
| 1831 | } |
| 1832 | } |
| 1833 | } |
| 1834 | } |
| 1835 | |
| 1836 | psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE; |
| 1837 | |
| 1838 | /* If we are not polling, we MUST be in SLI2 mode */ |
| 1839 | if (flag != MBX_POLL) { |
| 1840 | if (!(psli->sli_flag & LPFC_SLI2_ACTIVE)) { |
| 1841 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
| 1842 | spin_unlock_irqrestore(phba->host->host_lock, |
| 1843 | drvr_flag); |
| 1844 | /* Mbox command <mbxCommand> cannot issue */ |
| 1845 | LOG_MBOX_CANNOT_ISSUE_DATA( phba, mb, psli, flag); |
| 1846 | return (MBX_NOT_FINISHED); |
| 1847 | } |
| 1848 | /* timeout active mbox command */ |
| 1849 | mod_timer(&psli->mbox_tmo, jiffies + HZ * LPFC_MBOX_TMO); |
| 1850 | } |
| 1851 | |
| 1852 | /* Mailbox cmd <cmd> issue */ |
| 1853 | lpfc_printf_log(phba, |
| 1854 | KERN_INFO, |
| 1855 | LOG_MBOX | LOG_SLI, |
| 1856 | "%d:0309 Mailbox cmd x%x issue Data: x%x x%x x%x\n", |
| 1857 | phba->brd_no, |
| 1858 | mb->mbxCommand, |
| 1859 | phba->hba_state, |
| 1860 | psli->sli_flag, |
| 1861 | flag); |
| 1862 | |
| 1863 | psli->slistat.mbox_cmd++; |
| 1864 | evtctr = psli->slistat.mbox_event; |
| 1865 | |
| 1866 | /* next set own bit for the adapter and copy over command word */ |
| 1867 | mb->mbxOwner = OWN_CHIP; |
| 1868 | |
| 1869 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 1870 | /* First copy command data to host SLIM area */ |
James.Smart@Emulex.Com | 4cc2da1 | 2005-06-25 10:34:00 -0400 | [diff] [blame] | 1871 | lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx, MAILBOX_CMD_SIZE); |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 1872 | } else { |
| 1873 | if (mb->mbxCommand == MBX_CONFIG_PORT) { |
| 1874 | /* copy command data into host mbox for cmpl */ |
James.Smart@Emulex.Com | 4cc2da1 | 2005-06-25 10:34:00 -0400 | [diff] [blame] | 1875 | lpfc_sli_pcimem_bcopy(mb, &phba->slim2p->mbx, |
| 1876 | MAILBOX_CMD_SIZE); |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 1877 | } |
| 1878 | |
| 1879 | /* First copy mbox command data to HBA SLIM, skip past first |
| 1880 | word */ |
| 1881 | to_slim = phba->MBslimaddr + sizeof (uint32_t); |
| 1882 | lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0], |
| 1883 | MAILBOX_CMD_SIZE - sizeof (uint32_t)); |
| 1884 | |
| 1885 | /* Next copy over first word, with mbxOwner set */ |
| 1886 | ldata = *((volatile uint32_t *)mb); |
| 1887 | to_slim = phba->MBslimaddr; |
| 1888 | writel(ldata, to_slim); |
| 1889 | readl(to_slim); /* flush */ |
| 1890 | |
| 1891 | if (mb->mbxCommand == MBX_CONFIG_PORT) { |
| 1892 | /* switch over to host mailbox */ |
| 1893 | psli->sli_flag |= LPFC_SLI2_ACTIVE; |
| 1894 | } |
| 1895 | } |
| 1896 | |
| 1897 | wmb(); |
| 1898 | /* interrupt board to doit right away */ |
| 1899 | writel(CA_MBATT, phba->CAregaddr); |
| 1900 | readl(phba->CAregaddr); /* flush */ |
| 1901 | |
| 1902 | switch (flag) { |
| 1903 | case MBX_NOWAIT: |
| 1904 | /* Don't wait for it to finish, just return */ |
| 1905 | psli->mbox_active = pmbox; |
| 1906 | break; |
| 1907 | |
| 1908 | case MBX_POLL: |
| 1909 | i = 0; |
| 1910 | psli->mbox_active = NULL; |
| 1911 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { |
| 1912 | /* First read mbox status word */ |
James.Smart@Emulex.Com | 4cc2da1 | 2005-06-25 10:34:00 -0400 | [diff] [blame] | 1913 | word0 = *((volatile uint32_t *)&phba->slim2p->mbx); |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 1914 | word0 = le32_to_cpu(word0); |
| 1915 | } else { |
| 1916 | /* First read mbox status word */ |
| 1917 | word0 = readl(phba->MBslimaddr); |
| 1918 | } |
| 1919 | |
| 1920 | /* Read the HBA Host Attention Register */ |
| 1921 | ha_copy = readl(phba->HAregaddr); |
| 1922 | |
| 1923 | /* Wait for command to complete */ |
| 1924 | while (((word0 & OWN_CHIP) == OWN_CHIP) |
| 1925 | || !(ha_copy & HA_MBATT)) { |
| 1926 | if (i++ >= 100) { |
| 1927 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
| 1928 | spin_unlock_irqrestore(phba->host->host_lock, |
| 1929 | drvr_flag); |
| 1930 | return (MBX_NOT_FINISHED); |
| 1931 | } |
| 1932 | |
| 1933 | /* Check if we took a mbox interrupt while we were |
| 1934 | polling */ |
| 1935 | if (((word0 & OWN_CHIP) != OWN_CHIP) |
| 1936 | && (evtctr != psli->slistat.mbox_event)) |
| 1937 | break; |
| 1938 | |
| 1939 | spin_unlock_irqrestore(phba->host->host_lock, |
| 1940 | drvr_flag); |
| 1941 | |
| 1942 | /* Can be in interrupt context, do not sleep */ |
| 1943 | /* (or might be called with interrupts disabled) */ |
| 1944 | mdelay(i); |
| 1945 | |
| 1946 | spin_lock_irqsave(phba->host->host_lock, drvr_flag); |
| 1947 | |
| 1948 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { |
| 1949 | /* First copy command data */ |
James.Smart@Emulex.Com | 4cc2da1 | 2005-06-25 10:34:00 -0400 | [diff] [blame] | 1950 | word0 = *((volatile uint32_t *) |
| 1951 | &phba->slim2p->mbx); |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 1952 | word0 = le32_to_cpu(word0); |
| 1953 | if (mb->mbxCommand == MBX_CONFIG_PORT) { |
| 1954 | MAILBOX_t *slimmb; |
| 1955 | volatile uint32_t slimword0; |
| 1956 | /* Check real SLIM for any errors */ |
| 1957 | slimword0 = readl(phba->MBslimaddr); |
| 1958 | slimmb = (MAILBOX_t *) & slimword0; |
| 1959 | if (((slimword0 & OWN_CHIP) != OWN_CHIP) |
| 1960 | && slimmb->mbxStatus) { |
| 1961 | psli->sli_flag &= |
| 1962 | ~LPFC_SLI2_ACTIVE; |
| 1963 | word0 = slimword0; |
| 1964 | } |
| 1965 | } |
| 1966 | } else { |
| 1967 | /* First copy command data */ |
| 1968 | word0 = readl(phba->MBslimaddr); |
| 1969 | } |
| 1970 | /* Read the HBA Host Attention Register */ |
| 1971 | ha_copy = readl(phba->HAregaddr); |
| 1972 | } |
| 1973 | |
| 1974 | if (psli->sli_flag & LPFC_SLI2_ACTIVE) { |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 1975 | /* copy results back to user */ |
James.Smart@Emulex.Com | 4cc2da1 | 2005-06-25 10:34:00 -0400 | [diff] [blame] | 1976 | lpfc_sli_pcimem_bcopy(&phba->slim2p->mbx, mb, |
| 1977 | MAILBOX_CMD_SIZE); |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 1978 | } else { |
| 1979 | /* First copy command data */ |
| 1980 | lpfc_memcpy_from_slim(mb, phba->MBslimaddr, |
| 1981 | MAILBOX_CMD_SIZE); |
| 1982 | if ((mb->mbxCommand == MBX_DUMP_MEMORY) && |
| 1983 | pmbox->context2) { |
| 1984 | lpfc_memcpy_from_slim((void *)pmbox->context2, |
| 1985 | phba->MBslimaddr + DMP_RSP_OFFSET, |
| 1986 | mb->un.varDmp.word_cnt); |
| 1987 | } |
| 1988 | } |
| 1989 | |
| 1990 | writel(HA_MBATT, phba->HAregaddr); |
| 1991 | readl(phba->HAregaddr); /* flush */ |
| 1992 | |
| 1993 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
| 1994 | status = mb->mbxStatus; |
| 1995 | } |
| 1996 | |
| 1997 | spin_unlock_irqrestore(phba->host->host_lock, drvr_flag); |
| 1998 | return (status); |
| 1999 | } |
| 2000 | |
| 2001 | static int |
| 2002 | lpfc_sli_ringtx_put(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, |
| 2003 | struct lpfc_iocbq * piocb) |
| 2004 | { |
| 2005 | /* Insert the caller's iocb in the txq tail for later processing. */ |
| 2006 | list_add_tail(&piocb->list, &pring->txq); |
| 2007 | pring->txq_cnt++; |
| 2008 | return (0); |
| 2009 | } |
| 2010 | |
| 2011 | static struct lpfc_iocbq * |
| 2012 | lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
| 2013 | struct lpfc_iocbq ** piocb) |
| 2014 | { |
| 2015 | struct lpfc_iocbq * nextiocb; |
| 2016 | |
| 2017 | nextiocb = lpfc_sli_ringtx_get(phba, pring); |
| 2018 | if (!nextiocb) { |
| 2019 | nextiocb = *piocb; |
| 2020 | *piocb = NULL; |
| 2021 | } |
| 2022 | |
| 2023 | return nextiocb; |
| 2024 | } |
| 2025 | |
| 2026 | int |
| 2027 | lpfc_sli_issue_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
| 2028 | struct lpfc_iocbq *piocb, uint32_t flag) |
| 2029 | { |
| 2030 | struct lpfc_iocbq *nextiocb; |
| 2031 | IOCB_t *iocb; |
| 2032 | |
| 2033 | /* |
| 2034 | * We should never get an IOCB if we are in a < LINK_DOWN state |
| 2035 | */ |
| 2036 | if (unlikely(phba->hba_state < LPFC_LINK_DOWN)) |
| 2037 | return IOCB_ERROR; |
| 2038 | |
| 2039 | /* |
| 2040 | * Check to see if we are blocking IOCB processing because of a |
| 2041 | * outstanding mbox command. |
| 2042 | */ |
| 2043 | if (unlikely(pring->flag & LPFC_STOP_IOCB_MBX)) |
| 2044 | goto iocb_busy; |
| 2045 | |
| 2046 | if (unlikely(phba->hba_state == LPFC_LINK_DOWN)) { |
| 2047 | /* |
| 2048 | * Only CREATE_XRI, CLOSE_XRI, ABORT_XRI, and QUE_RING_BUF |
| 2049 | * can be issued if the link is not up. |
| 2050 | */ |
| 2051 | switch (piocb->iocb.ulpCommand) { |
| 2052 | case CMD_QUE_RING_BUF_CN: |
| 2053 | case CMD_QUE_RING_BUF64_CN: |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 2054 | /* |
| 2055 | * For IOCBs, like QUE_RING_BUF, that have no rsp ring |
| 2056 | * completion, iocb_cmpl MUST be 0. |
| 2057 | */ |
| 2058 | if (piocb->iocb_cmpl) |
| 2059 | piocb->iocb_cmpl = NULL; |
| 2060 | /*FALLTHROUGH*/ |
| 2061 | case CMD_CREATE_XRI_CR: |
| 2062 | break; |
| 2063 | default: |
| 2064 | goto iocb_busy; |
| 2065 | } |
| 2066 | |
| 2067 | /* |
| 2068 | * For FCP commands, we must be in a state where we can process link |
| 2069 | * attention events. |
| 2070 | */ |
| 2071 | } else if (unlikely(pring->ringno == phba->sli.fcp_ring && |
| 2072 | !(phba->sli.sli_flag & LPFC_PROCESS_LA))) |
| 2073 | goto iocb_busy; |
| 2074 | |
| 2075 | /* |
| 2076 | * Check to see if this is a high priority command. |
| 2077 | * If so bypass tx queue processing. |
| 2078 | */ |
| 2079 | if (unlikely((flag & SLI_IOCB_HIGH_PRIORITY) && |
| 2080 | (iocb = lpfc_sli_next_iocb_slot(phba, pring)))) { |
| 2081 | lpfc_sli_submit_iocb(phba, pring, iocb, piocb); |
| 2082 | piocb = NULL; |
| 2083 | } |
| 2084 | |
| 2085 | while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) && |
| 2086 | (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb))) |
| 2087 | lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb); |
| 2088 | |
| 2089 | if (iocb) |
| 2090 | lpfc_sli_update_ring(phba, pring); |
| 2091 | else |
| 2092 | lpfc_sli_update_full_ring(phba, pring); |
| 2093 | |
| 2094 | if (!piocb) |
| 2095 | return IOCB_SUCCESS; |
| 2096 | |
| 2097 | goto out_busy; |
| 2098 | |
| 2099 | iocb_busy: |
| 2100 | pring->stats.iocb_cmd_delay++; |
| 2101 | |
| 2102 | out_busy: |
| 2103 | |
| 2104 | if (!(flag & SLI_IOCB_RET_IOCB)) { |
| 2105 | lpfc_sli_ringtx_put(phba, pring, piocb); |
| 2106 | return IOCB_SUCCESS; |
| 2107 | } |
| 2108 | |
| 2109 | return IOCB_BUSY; |
| 2110 | } |
| 2111 | |
| 2112 | int |
| 2113 | lpfc_sli_setup(struct lpfc_hba *phba) |
| 2114 | { |
| 2115 | int i, totiocb = 0; |
| 2116 | struct lpfc_sli *psli = &phba->sli; |
| 2117 | struct lpfc_sli_ring *pring; |
| 2118 | |
| 2119 | psli->num_rings = MAX_CONFIGURED_RINGS; |
| 2120 | psli->sli_flag = 0; |
| 2121 | psli->fcp_ring = LPFC_FCP_RING; |
| 2122 | psli->next_ring = LPFC_FCP_NEXT_RING; |
| 2123 | psli->ip_ring = LPFC_IP_RING; |
| 2124 | |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 2125 | psli->iocbq_lookup = NULL; |
| 2126 | psli->iocbq_lookup_len = 0; |
| 2127 | psli->last_iotag = 0; |
| 2128 | |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 2129 | for (i = 0; i < psli->num_rings; i++) { |
| 2130 | pring = &psli->ring[i]; |
| 2131 | switch (i) { |
| 2132 | case LPFC_FCP_RING: /* ring 0 - FCP */ |
| 2133 | /* numCiocb and numRiocb are used in config_port */ |
| 2134 | pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES; |
| 2135 | pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES; |
| 2136 | pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES; |
| 2137 | pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES; |
| 2138 | pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES; |
| 2139 | pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES; |
| 2140 | pring->iotag_ctr = 0; |
| 2141 | pring->iotag_max = |
| 2142 | (phba->cfg_hba_queue_depth * 2); |
| 2143 | pring->fast_iotag = pring->iotag_max; |
| 2144 | pring->num_mask = 0; |
| 2145 | break; |
| 2146 | case LPFC_IP_RING: /* ring 1 - IP */ |
| 2147 | /* numCiocb and numRiocb are used in config_port */ |
| 2148 | pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES; |
| 2149 | pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES; |
| 2150 | pring->num_mask = 0; |
| 2151 | break; |
| 2152 | case LPFC_ELS_RING: /* ring 2 - ELS / CT */ |
| 2153 | /* numCiocb and numRiocb are used in config_port */ |
| 2154 | pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES; |
| 2155 | pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES; |
| 2156 | pring->fast_iotag = 0; |
| 2157 | pring->iotag_ctr = 0; |
| 2158 | pring->iotag_max = 4096; |
| 2159 | pring->num_mask = 4; |
| 2160 | pring->prt[0].profile = 0; /* Mask 0 */ |
| 2161 | pring->prt[0].rctl = FC_ELS_REQ; |
| 2162 | pring->prt[0].type = FC_ELS_DATA; |
| 2163 | pring->prt[0].lpfc_sli_rcv_unsol_event = |
| 2164 | lpfc_els_unsol_event; |
| 2165 | pring->prt[1].profile = 0; /* Mask 1 */ |
| 2166 | pring->prt[1].rctl = FC_ELS_RSP; |
| 2167 | pring->prt[1].type = FC_ELS_DATA; |
| 2168 | pring->prt[1].lpfc_sli_rcv_unsol_event = |
| 2169 | lpfc_els_unsol_event; |
| 2170 | pring->prt[2].profile = 0; /* Mask 2 */ |
| 2171 | /* NameServer Inquiry */ |
| 2172 | pring->prt[2].rctl = FC_UNSOL_CTL; |
| 2173 | /* NameServer */ |
| 2174 | pring->prt[2].type = FC_COMMON_TRANSPORT_ULP; |
| 2175 | pring->prt[2].lpfc_sli_rcv_unsol_event = |
| 2176 | lpfc_ct_unsol_event; |
| 2177 | pring->prt[3].profile = 0; /* Mask 3 */ |
| 2178 | /* NameServer response */ |
| 2179 | pring->prt[3].rctl = FC_SOL_CTL; |
| 2180 | /* NameServer */ |
| 2181 | pring->prt[3].type = FC_COMMON_TRANSPORT_ULP; |
| 2182 | pring->prt[3].lpfc_sli_rcv_unsol_event = |
| 2183 | lpfc_ct_unsol_event; |
| 2184 | break; |
| 2185 | } |
| 2186 | totiocb += (pring->numCiocb + pring->numRiocb); |
| 2187 | } |
| 2188 | if (totiocb > MAX_SLI2_IOCB) { |
| 2189 | /* Too many cmd / rsp ring entries in SLI2 SLIM */ |
| 2190 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| 2191 | "%d:0462 Too many cmd / rsp ring entries in " |
| 2192 | "SLI2 SLIM Data: x%x x%x\n", |
| 2193 | phba->brd_no, totiocb, MAX_SLI2_IOCB); |
| 2194 | } |
| 2195 | |
| 2196 | return 0; |
| 2197 | } |
| 2198 | |
| 2199 | int |
| 2200 | lpfc_sli_queue_setup(struct lpfc_hba * phba) |
| 2201 | { |
| 2202 | struct lpfc_sli *psli; |
| 2203 | struct lpfc_sli_ring *pring; |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 2204 | int i; |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 2205 | |
| 2206 | psli = &phba->sli; |
| 2207 | spin_lock_irq(phba->host->host_lock); |
| 2208 | INIT_LIST_HEAD(&psli->mboxq); |
| 2209 | /* Initialize list headers for txq and txcmplq as double linked lists */ |
| 2210 | for (i = 0; i < psli->num_rings; i++) { |
| 2211 | pring = &psli->ring[i]; |
| 2212 | pring->ringno = i; |
| 2213 | pring->next_cmdidx = 0; |
| 2214 | pring->local_getidx = 0; |
| 2215 | pring->cmdidx = 0; |
| 2216 | INIT_LIST_HEAD(&pring->txq); |
| 2217 | INIT_LIST_HEAD(&pring->txcmplq); |
| 2218 | INIT_LIST_HEAD(&pring->iocb_continueq); |
| 2219 | INIT_LIST_HEAD(&pring->postbufq); |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 2220 | } |
| 2221 | spin_unlock_irq(phba->host->host_lock); |
| 2222 | return (1); |
| 2223 | } |
| 2224 | |
| 2225 | int |
| 2226 | lpfc_sli_hba_down(struct lpfc_hba * phba) |
| 2227 | { |
| 2228 | struct lpfc_sli *psli; |
| 2229 | struct lpfc_sli_ring *pring; |
| 2230 | LPFC_MBOXQ_t *pmb; |
| 2231 | struct lpfc_iocbq *iocb, *next_iocb; |
| 2232 | IOCB_t *icmd = NULL; |
| 2233 | int i; |
| 2234 | unsigned long flags = 0; |
| 2235 | |
| 2236 | psli = &phba->sli; |
| 2237 | lpfc_hba_down_prep(phba); |
| 2238 | |
| 2239 | spin_lock_irqsave(phba->host->host_lock, flags); |
| 2240 | |
| 2241 | for (i = 0; i < psli->num_rings; i++) { |
| 2242 | pring = &psli->ring[i]; |
| 2243 | pring->flag |= LPFC_DEFERRED_RING_EVENT; |
| 2244 | |
| 2245 | /* |
| 2246 | * Error everything on the txq since these iocbs have not been |
| 2247 | * given to the FW yet. |
| 2248 | */ |
| 2249 | pring->txq_cnt = 0; |
| 2250 | |
| 2251 | list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) { |
| 2252 | list_del_init(&iocb->list); |
| 2253 | if (iocb->iocb_cmpl) { |
| 2254 | icmd = &iocb->iocb; |
| 2255 | icmd->ulpStatus = IOSTAT_LOCAL_REJECT; |
| 2256 | icmd->un.ulpWord[4] = IOERR_SLI_DOWN; |
| 2257 | spin_unlock_irqrestore(phba->host->host_lock, |
| 2258 | flags); |
| 2259 | (iocb->iocb_cmpl) (phba, iocb, iocb); |
| 2260 | spin_lock_irqsave(phba->host->host_lock, flags); |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 2261 | } else |
| 2262 | lpfc_sli_release_iocbq(phba, iocb); |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 2263 | } |
| 2264 | |
| 2265 | INIT_LIST_HEAD(&(pring->txq)); |
| 2266 | |
| 2267 | if (pring->fast_lookup) { |
| 2268 | kfree(pring->fast_lookup); |
| 2269 | pring->fast_lookup = NULL; |
| 2270 | } |
| 2271 | |
| 2272 | } |
| 2273 | |
| 2274 | spin_unlock_irqrestore(phba->host->host_lock, flags); |
| 2275 | |
| 2276 | /* Return any active mbox cmds */ |
| 2277 | del_timer_sync(&psli->mbox_tmo); |
| 2278 | spin_lock_irqsave(phba->host->host_lock, flags); |
| 2279 | phba->work_hba_events &= ~WORKER_MBOX_TMO; |
| 2280 | if (psli->mbox_active) { |
| 2281 | pmb = psli->mbox_active; |
| 2282 | pmb->mb.mbxStatus = MBX_NOT_FINISHED; |
| 2283 | if (pmb->mbox_cmpl) { |
| 2284 | spin_unlock_irqrestore(phba->host->host_lock, flags); |
| 2285 | pmb->mbox_cmpl(phba,pmb); |
| 2286 | spin_lock_irqsave(phba->host->host_lock, flags); |
| 2287 | } |
| 2288 | } |
| 2289 | psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE; |
| 2290 | psli->mbox_active = NULL; |
| 2291 | |
| 2292 | /* Return any pending mbox cmds */ |
| 2293 | while ((pmb = lpfc_mbox_get(phba)) != NULL) { |
| 2294 | pmb->mb.mbxStatus = MBX_NOT_FINISHED; |
| 2295 | if (pmb->mbox_cmpl) { |
| 2296 | spin_unlock_irqrestore(phba->host->host_lock, flags); |
| 2297 | pmb->mbox_cmpl(phba,pmb); |
| 2298 | spin_lock_irqsave(phba->host->host_lock, flags); |
| 2299 | } |
| 2300 | } |
| 2301 | |
| 2302 | INIT_LIST_HEAD(&psli->mboxq); |
| 2303 | |
| 2304 | spin_unlock_irqrestore(phba->host->host_lock, flags); |
| 2305 | |
| 2306 | /* |
| 2307 | * Provided the hba is not in an error state, reset it. It is not |
| 2308 | * capable of IO anymore. |
| 2309 | */ |
| 2310 | if (phba->hba_state != LPFC_HBA_ERROR) { |
| 2311 | phba->hba_state = LPFC_INIT_START; |
| 2312 | lpfc_sli_brdreset(phba, 1); |
| 2313 | } |
| 2314 | |
| 2315 | return 1; |
| 2316 | } |
| 2317 | |
| 2318 | void |
| 2319 | lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt) |
| 2320 | { |
| 2321 | uint32_t *src = srcp; |
| 2322 | uint32_t *dest = destp; |
| 2323 | uint32_t ldata; |
| 2324 | int i; |
| 2325 | |
| 2326 | for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) { |
| 2327 | ldata = *src; |
| 2328 | ldata = le32_to_cpu(ldata); |
| 2329 | *dest = ldata; |
| 2330 | src++; |
| 2331 | dest++; |
| 2332 | } |
| 2333 | } |
| 2334 | |
| 2335 | int |
| 2336 | lpfc_sli_ringpostbuf_put(struct lpfc_hba * phba, struct lpfc_sli_ring * pring, |
| 2337 | struct lpfc_dmabuf * mp) |
| 2338 | { |
| 2339 | /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up |
| 2340 | later */ |
| 2341 | list_add_tail(&mp->list, &pring->postbufq); |
| 2342 | |
| 2343 | pring->postbufq_cnt++; |
| 2344 | return 0; |
| 2345 | } |
| 2346 | |
| 2347 | |
| 2348 | struct lpfc_dmabuf * |
| 2349 | lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
| 2350 | dma_addr_t phys) |
| 2351 | { |
| 2352 | struct lpfc_dmabuf *mp, *next_mp; |
| 2353 | struct list_head *slp = &pring->postbufq; |
| 2354 | |
| 2355 | /* Search postbufq, from the begining, looking for a match on phys */ |
| 2356 | list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) { |
| 2357 | if (mp->phys == phys) { |
| 2358 | list_del_init(&mp->list); |
| 2359 | pring->postbufq_cnt--; |
| 2360 | return mp; |
| 2361 | } |
| 2362 | } |
| 2363 | |
| 2364 | lpfc_printf_log(phba, KERN_ERR, LOG_INIT, |
| 2365 | "%d:0410 Cannot find virtual addr for mapped buf on " |
| 2366 | "ring %d Data x%llx x%p x%p x%x\n", |
| 2367 | phba->brd_no, pring->ringno, (unsigned long long)phys, |
| 2368 | slp->next, slp->prev, pring->postbufq_cnt); |
| 2369 | return NULL; |
| 2370 | } |
| 2371 | |
| 2372 | static void |
| 2373 | lpfc_sli_abort_elsreq_cmpl(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, |
| 2374 | struct lpfc_iocbq * rspiocb) |
| 2375 | { |
| 2376 | struct lpfc_dmabuf *buf_ptr, *buf_ptr1; |
| 2377 | /* Free the resources associated with the ELS_REQUEST64 IOCB the driver |
| 2378 | * just aborted. |
| 2379 | * In this case, context2 = cmd, context2->next = rsp, context3 = bpl |
| 2380 | */ |
| 2381 | if (cmdiocb->context2) { |
| 2382 | buf_ptr1 = (struct lpfc_dmabuf *) cmdiocb->context2; |
| 2383 | |
| 2384 | /* Free the response IOCB before completing the abort |
| 2385 | command. */ |
| 2386 | buf_ptr = NULL; |
| 2387 | list_remove_head((&buf_ptr1->list), buf_ptr, |
| 2388 | struct lpfc_dmabuf, list); |
| 2389 | if (buf_ptr) { |
| 2390 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); |
| 2391 | kfree(buf_ptr); |
| 2392 | } |
| 2393 | lpfc_mbuf_free(phba, buf_ptr1->virt, buf_ptr1->phys); |
| 2394 | kfree(buf_ptr1); |
| 2395 | } |
| 2396 | |
| 2397 | if (cmdiocb->context3) { |
| 2398 | buf_ptr = (struct lpfc_dmabuf *) cmdiocb->context3; |
| 2399 | lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys); |
| 2400 | kfree(buf_ptr); |
| 2401 | } |
| 2402 | |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 2403 | lpfc_sli_release_iocbq(phba, cmdiocb); |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 2404 | return; |
| 2405 | } |
| 2406 | |
| 2407 | int |
| 2408 | lpfc_sli_issue_abort_iotag32(struct lpfc_hba * phba, |
| 2409 | struct lpfc_sli_ring * pring, |
| 2410 | struct lpfc_iocbq * cmdiocb) |
| 2411 | { |
| 2412 | struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list; |
| 2413 | struct lpfc_iocbq *abtsiocbp = NULL; |
| 2414 | IOCB_t *icmd = NULL; |
| 2415 | IOCB_t *iabt = NULL; |
| 2416 | |
| 2417 | /* issue ABTS for this IOCB based on iotag */ |
| 2418 | list_remove_head(lpfc_iocb_list, abtsiocbp, struct lpfc_iocbq, list); |
| 2419 | if (abtsiocbp == NULL) |
| 2420 | return 0; |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 2421 | |
| 2422 | iabt = &abtsiocbp->iocb; |
| 2423 | icmd = &cmdiocb->iocb; |
| 2424 | switch (icmd->ulpCommand) { |
| 2425 | case CMD_ELS_REQUEST64_CR: |
| 2426 | /* Even though we abort the ELS command, the firmware may access |
| 2427 | * the BPL or other resources before it processes our |
| 2428 | * ABORT_MXRI64. Thus we must delay reusing the cmdiocb |
| 2429 | * resources till the actual abort request completes. |
| 2430 | */ |
| 2431 | abtsiocbp->context1 = (void *)((unsigned long)icmd->ulpCommand); |
| 2432 | abtsiocbp->context2 = cmdiocb->context2; |
| 2433 | abtsiocbp->context3 = cmdiocb->context3; |
| 2434 | cmdiocb->context2 = NULL; |
| 2435 | cmdiocb->context3 = NULL; |
| 2436 | abtsiocbp->iocb_cmpl = lpfc_sli_abort_elsreq_cmpl; |
| 2437 | break; |
| 2438 | default: |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 2439 | lpfc_sli_release_iocbq(phba, abtsiocbp); |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 2440 | return 0; |
| 2441 | } |
| 2442 | |
| 2443 | iabt->un.amxri.abortType = ABORT_TYPE_ABTS; |
| 2444 | iabt->un.amxri.iotag32 = icmd->un.elsreq64.bdl.ulpIoTag32; |
| 2445 | |
| 2446 | iabt->ulpLe = 1; |
| 2447 | iabt->ulpClass = CLASS3; |
| 2448 | iabt->ulpCommand = CMD_ABORT_MXRI64_CN; |
| 2449 | |
| 2450 | if (lpfc_sli_issue_iocb(phba, pring, abtsiocbp, 0) == IOCB_ERROR) { |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 2451 | lpfc_sli_release_iocbq(phba, abtsiocbp); |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 2452 | return 0; |
| 2453 | } |
| 2454 | |
| 2455 | return 1; |
| 2456 | } |
| 2457 | |
| 2458 | static int |
| 2459 | lpfc_sli_validate_iocb_cmd(struct lpfc_scsi_buf *lpfc_cmd, uint16_t tgt_id, |
| 2460 | uint64_t lun_id, struct lpfc_iocbq *iocb, |
| 2461 | uint32_t ctx, lpfc_ctx_cmd ctx_cmd) |
| 2462 | { |
| 2463 | int rc = 1; |
| 2464 | |
| 2465 | if (lpfc_cmd == NULL) |
| 2466 | return rc; |
| 2467 | |
| 2468 | switch (ctx_cmd) { |
| 2469 | case LPFC_CTX_LUN: |
| 2470 | if ((lpfc_cmd->pCmd->device->id == tgt_id) && |
| 2471 | (lpfc_cmd->pCmd->device->lun == lun_id)) |
| 2472 | rc = 0; |
| 2473 | break; |
| 2474 | case LPFC_CTX_TGT: |
| 2475 | if (lpfc_cmd->pCmd->device->id == tgt_id) |
| 2476 | rc = 0; |
| 2477 | break; |
| 2478 | case LPFC_CTX_CTX: |
| 2479 | if (iocb->iocb.ulpContext == ctx) |
| 2480 | rc = 0; |
| 2481 | case LPFC_CTX_HOST: |
| 2482 | rc = 0; |
| 2483 | break; |
| 2484 | default: |
| 2485 | printk(KERN_ERR "%s: Unknown context cmd type, value %d\n", |
| 2486 | __FUNCTION__, ctx_cmd); |
| 2487 | break; |
| 2488 | } |
| 2489 | |
| 2490 | return rc; |
| 2491 | } |
| 2492 | |
| 2493 | int |
| 2494 | lpfc_sli_sum_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
| 2495 | uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd ctx_cmd) |
| 2496 | { |
| 2497 | struct lpfc_iocbq *iocb, *next_iocb; |
| 2498 | IOCB_t *cmd = NULL; |
| 2499 | struct lpfc_scsi_buf *lpfc_cmd; |
| 2500 | int sum = 0, ret_val = 0; |
| 2501 | |
| 2502 | /* Next check the txcmplq */ |
| 2503 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { |
| 2504 | cmd = &iocb->iocb; |
| 2505 | |
| 2506 | /* Must be a FCP command */ |
| 2507 | if ((cmd->ulpCommand != CMD_FCP_ICMND64_CR) && |
| 2508 | (cmd->ulpCommand != CMD_FCP_IWRITE64_CR) && |
| 2509 | (cmd->ulpCommand != CMD_FCP_IREAD64_CR)) { |
| 2510 | continue; |
| 2511 | } |
| 2512 | |
| 2513 | /* context1 MUST be a struct lpfc_scsi_buf */ |
| 2514 | lpfc_cmd = (struct lpfc_scsi_buf *) (iocb->context1); |
| 2515 | ret_val = lpfc_sli_validate_iocb_cmd(lpfc_cmd, tgt_id, lun_id, |
| 2516 | NULL, 0, ctx_cmd); |
| 2517 | if (ret_val != 0) |
| 2518 | continue; |
| 2519 | sum++; |
| 2520 | } |
| 2521 | return sum; |
| 2522 | } |
| 2523 | |
James.Smart@Emulex.Com | 5eb95af | 2005-06-25 10:34:30 -0400 | [diff] [blame] | 2524 | void |
| 2525 | lpfc_sli_abort_fcp_cmpl(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb, |
| 2526 | struct lpfc_iocbq * rspiocb) |
| 2527 | { |
| 2528 | spin_lock_irq(phba->host->host_lock); |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 2529 | lpfc_sli_release_iocbq(phba, cmdiocb); |
James.Smart@Emulex.Com | 5eb95af | 2005-06-25 10:34:30 -0400 | [diff] [blame] | 2530 | spin_unlock_irq(phba->host->host_lock); |
| 2531 | return; |
| 2532 | } |
| 2533 | |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 2534 | int |
| 2535 | lpfc_sli_abort_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, |
| 2536 | uint16_t tgt_id, uint64_t lun_id, uint32_t ctx, |
| 2537 | lpfc_ctx_cmd abort_cmd) |
| 2538 | { |
| 2539 | struct lpfc_iocbq *iocb, *next_iocb; |
| 2540 | struct lpfc_iocbq *abtsiocb = NULL; |
| 2541 | struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list; |
| 2542 | IOCB_t *cmd = NULL; |
| 2543 | struct lpfc_scsi_buf *lpfc_cmd; |
| 2544 | int errcnt = 0, ret_val = 0; |
| 2545 | |
| 2546 | list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) { |
| 2547 | cmd = &iocb->iocb; |
| 2548 | |
| 2549 | /* Must be a FCP command */ |
| 2550 | if ((cmd->ulpCommand != CMD_FCP_ICMND64_CR) && |
| 2551 | (cmd->ulpCommand != CMD_FCP_IWRITE64_CR) && |
| 2552 | (cmd->ulpCommand != CMD_FCP_IREAD64_CR)) { |
| 2553 | continue; |
| 2554 | } |
| 2555 | |
| 2556 | /* context1 MUST be a struct lpfc_scsi_buf */ |
| 2557 | lpfc_cmd = (struct lpfc_scsi_buf *) (iocb->context1); |
| 2558 | ret_val = lpfc_sli_validate_iocb_cmd(lpfc_cmd, tgt_id, lun_id, |
| 2559 | iocb, ctx, abort_cmd); |
| 2560 | if (ret_val != 0) |
| 2561 | continue; |
| 2562 | |
| 2563 | /* issue ABTS for this IOCB based on iotag */ |
| 2564 | list_remove_head(lpfc_iocb_list, abtsiocb, struct lpfc_iocbq, |
| 2565 | list); |
| 2566 | if (abtsiocb == NULL) { |
| 2567 | errcnt++; |
| 2568 | continue; |
| 2569 | } |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 2570 | |
| 2571 | abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS; |
| 2572 | abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext; |
| 2573 | abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag; |
| 2574 | abtsiocb->iocb.ulpLe = 1; |
| 2575 | abtsiocb->iocb.ulpClass = cmd->ulpClass; |
| 2576 | |
| 2577 | if (phba->hba_state >= LPFC_LINK_UP) |
| 2578 | abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN; |
| 2579 | else |
| 2580 | abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN; |
| 2581 | |
James.Smart@Emulex.Com | 5eb95af | 2005-06-25 10:34:30 -0400 | [diff] [blame] | 2582 | /* Setup callback routine and issue the command. */ |
| 2583 | abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl; |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 2584 | ret_val = lpfc_sli_issue_iocb(phba, pring, abtsiocb, 0); |
| 2585 | if (ret_val == IOCB_ERROR) { |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 2586 | lpfc_sli_release_iocbq(phba, abtsiocb); |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 2587 | errcnt++; |
| 2588 | continue; |
| 2589 | } |
| 2590 | } |
| 2591 | |
| 2592 | return errcnt; |
| 2593 | } |
| 2594 | |
| 2595 | void |
| 2596 | lpfc_sli_wake_iocb_high_priority(struct lpfc_hba * phba, |
| 2597 | struct lpfc_iocbq * queue1, |
| 2598 | struct lpfc_iocbq * queue2) |
| 2599 | { |
James Bottomley | 604a3e3 | 2005-10-29 10:28:33 -0500 | [diff] [blame^] | 2600 | struct lpfc_iocbq *save_iocbq = queue1->context2; |
| 2601 | if (save_iocbq && queue2) |
| 2602 | memcpy(&save_iocbq->iocb, &queue2->iocb, sizeof(queue2->iocb)); |
| dea3101 | 2005-04-17 16:05:31 -0500 | [diff] [blame] | 2603 | |
| 2604 | /* The waiter is looking for LPFC_IO_HIPRI bit to be set |
| 2605 | as a signal to wake up */ |
| 2606 | queue1->iocb_flag |= LPFC_IO_HIPRI; |
| 2607 | return; |
| 2608 | } |
| 2609 | |
| 2610 | int |
| 2611 | lpfc_sli_issue_iocb_wait_high_priority(struct lpfc_hba * phba, |
| 2612 | struct lpfc_sli_ring * pring, |
| 2613 | struct lpfc_iocbq * piocb, |
| 2614 | uint32_t flag, |
| 2615 | struct lpfc_iocbq * prspiocbq, |
| 2616 | uint32_t timeout) |
| 2617 | { |
| 2618 | int j, delay_time, retval = IOCB_ERROR; |
| 2619 | |
| 2620 | /* The caller must left context1 empty. */ |
| 2621 | if (piocb->context_un.hipri_wait_queue != 0) { |
| 2622 | return IOCB_ERROR; |
| 2623 | } |
| 2624 | |
| 2625 | /* |
| 2626 | * If the caller has provided a response iocbq buffer, context2 must |
| 2627 | * be NULL or its an error. |
| 2628 | */ |
| 2629 | if (prspiocbq && piocb->context2) { |
| 2630 | return IOCB_ERROR; |
| 2631 | } |
| 2632 | |
| 2633 | piocb->context2 = prspiocbq; |
| 2634 | |
| 2635 | /* Setup callback routine and issue the command. */ |
| 2636 | piocb->iocb_cmpl = lpfc_sli_wake_iocb_high_priority; |
| 2637 | retval = lpfc_sli_issue_iocb(phba, pring, piocb, |
| 2638 | flag | SLI_IOCB_HIGH_PRIORITY); |
| 2639 | if (retval != IOCB_SUCCESS) { |
| 2640 | piocb->context2 = NULL; |
| 2641 | return IOCB_ERROR; |
| 2642 | } |
| 2643 | |
| 2644 | /* |
| 2645 | * This high-priority iocb was sent out-of-band. Poll for its |
| 2646 | * completion rather than wait for a signal. Note that the host_lock |
| 2647 | * is held by the midlayer and must be released here to allow the |
| 2648 | * interrupt handlers to complete the IO and signal this routine via |
| 2649 | * the iocb_flag. |
| 2650 | * Also, the delay_time is computed to be one second longer than |
| 2651 | * the scsi command timeout to give the FW time to abort on |
| 2652 | * timeout rather than the driver just giving up. Typically, |
| 2653 | * the midlayer does not specify a time for this command so the |
| 2654 | * driver is free to enforce its own timeout. |
| 2655 | */ |
| 2656 | |
| 2657 | delay_time = ((timeout + 1) * 1000) >> 6; |
| 2658 | retval = IOCB_ERROR; |
| 2659 | spin_unlock_irq(phba->host->host_lock); |
| 2660 | for (j = 0; j < 64; j++) { |
| 2661 | msleep(delay_time); |
| 2662 | if (piocb->iocb_flag & LPFC_IO_HIPRI) { |
| 2663 | piocb->iocb_flag &= ~LPFC_IO_HIPRI; |
| 2664 | retval = IOCB_SUCCESS; |
| 2665 | break; |
| 2666 | } |
| 2667 | } |
| 2668 | |
| 2669 | spin_lock_irq(phba->host->host_lock); |
| 2670 | piocb->context2 = NULL; |
| 2671 | return retval; |
| 2672 | } |
| 2673 | int |
| 2674 | lpfc_sli_issue_mbox_wait(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq, |
| 2675 | uint32_t timeout) |
| 2676 | { |
| 2677 | DECLARE_WAIT_QUEUE_HEAD(done_q); |
| 2678 | DECLARE_WAITQUEUE(wq_entry, current); |
| 2679 | uint32_t timeleft = 0; |
| 2680 | int retval; |
| 2681 | |
| 2682 | /* The caller must leave context1 empty. */ |
| 2683 | if (pmboxq->context1 != 0) { |
| 2684 | return (MBX_NOT_FINISHED); |
| 2685 | } |
| 2686 | |
| 2687 | /* setup wake call as IOCB callback */ |
| 2688 | pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait; |
| 2689 | /* setup context field to pass wait_queue pointer to wake function */ |
| 2690 | pmboxq->context1 = &done_q; |
| 2691 | |
| 2692 | /* start to sleep before we wait, to avoid races */ |
| 2693 | set_current_state(TASK_INTERRUPTIBLE); |
| 2694 | add_wait_queue(&done_q, &wq_entry); |
| 2695 | |
| 2696 | /* now issue the command */ |
| 2697 | retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT); |
| 2698 | |
| 2699 | if (retval == MBX_BUSY || retval == MBX_SUCCESS) { |
| 2700 | timeleft = schedule_timeout(timeout * HZ); |
| 2701 | pmboxq->context1 = NULL; |
| 2702 | /* if schedule_timeout returns 0, we timed out and were not |
| 2703 | woken up */ |
| 2704 | if (timeleft == 0) { |
| 2705 | retval = MBX_TIMEOUT; |
| 2706 | } else { |
| 2707 | retval = MBX_SUCCESS; |
| 2708 | } |
| 2709 | } |
| 2710 | |
| 2711 | |
| 2712 | set_current_state(TASK_RUNNING); |
| 2713 | remove_wait_queue(&done_q, &wq_entry); |
| 2714 | return retval; |
| 2715 | } |
| 2716 | |
| 2717 | irqreturn_t |
| 2718 | lpfc_intr_handler(int irq, void *dev_id, struct pt_regs * regs) |
| 2719 | { |
| 2720 | struct lpfc_hba *phba; |
| 2721 | uint32_t ha_copy; |
| 2722 | uint32_t work_ha_copy; |
| 2723 | unsigned long status; |
| 2724 | int i; |
| 2725 | uint32_t control; |
| 2726 | |
| 2727 | /* |
| 2728 | * Get the driver's phba structure from the dev_id and |
| 2729 | * assume the HBA is not interrupting. |
| 2730 | */ |
| 2731 | phba = (struct lpfc_hba *) dev_id; |
| 2732 | |
| 2733 | if (unlikely(!phba)) |
| 2734 | return IRQ_NONE; |
| 2735 | |
| 2736 | phba->sli.slistat.sli_intr++; |
| 2737 | |
| 2738 | /* |
| 2739 | * Call the HBA to see if it is interrupting. If not, don't claim |
| 2740 | * the interrupt |
| 2741 | */ |
| 2742 | |
| 2743 | /* Ignore all interrupts during initialization. */ |
| 2744 | if (unlikely(phba->hba_state < LPFC_LINK_DOWN)) |
| 2745 | return IRQ_NONE; |
| 2746 | |
| 2747 | /* |
| 2748 | * Read host attention register to determine interrupt source |
| 2749 | * Clear Attention Sources, except Error Attention (to |
| 2750 | * preserve status) and Link Attention |
| 2751 | */ |
| 2752 | spin_lock(phba->host->host_lock); |
| 2753 | ha_copy = readl(phba->HAregaddr); |
| 2754 | writel((ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr); |
| 2755 | readl(phba->HAregaddr); /* flush */ |
| 2756 | spin_unlock(phba->host->host_lock); |
| 2757 | |
| 2758 | if (unlikely(!ha_copy)) |
| 2759 | return IRQ_NONE; |
| 2760 | |
| 2761 | work_ha_copy = ha_copy & phba->work_ha_mask; |
| 2762 | |
| 2763 | if (unlikely(work_ha_copy)) { |
| 2764 | if (work_ha_copy & HA_LATT) { |
| 2765 | if (phba->sli.sli_flag & LPFC_PROCESS_LA) { |
| 2766 | /* |
| 2767 | * Turn off Link Attention interrupts |
| 2768 | * until CLEAR_LA done |
| 2769 | */ |
| 2770 | spin_lock(phba->host->host_lock); |
| 2771 | phba->sli.sli_flag &= ~LPFC_PROCESS_LA; |
| 2772 | control = readl(phba->HCregaddr); |
| 2773 | control &= ~HC_LAINT_ENA; |
| 2774 | writel(control, phba->HCregaddr); |
| 2775 | readl(phba->HCregaddr); /* flush */ |
| 2776 | spin_unlock(phba->host->host_lock); |
| 2777 | } |
| 2778 | else |
| 2779 | work_ha_copy &= ~HA_LATT; |
| 2780 | } |
| 2781 | |
| 2782 | if (work_ha_copy & ~(HA_ERATT|HA_MBATT|HA_LATT)) { |
| 2783 | for (i = 0; i < phba->sli.num_rings; i++) { |
| 2784 | if (work_ha_copy & (HA_RXATT << (4*i))) { |
| 2785 | /* |
| 2786 | * Turn off Slow Rings interrupts |
| 2787 | */ |
| 2788 | spin_lock(phba->host->host_lock); |
| 2789 | control = readl(phba->HCregaddr); |
| 2790 | control &= ~(HC_R0INT_ENA << i); |
| 2791 | writel(control, phba->HCregaddr); |
| 2792 | readl(phba->HCregaddr); /* flush */ |
| 2793 | spin_unlock(phba->host->host_lock); |
| 2794 | } |
| 2795 | } |
| 2796 | } |
| 2797 | |
| 2798 | if (work_ha_copy & HA_ERATT) { |
| 2799 | phba->hba_state = LPFC_HBA_ERROR; |
| 2800 | /* |
| 2801 | * There was a link/board error. Read the |
| 2802 | * status register to retrieve the error event |
| 2803 | * and process it. |
| 2804 | */ |
| 2805 | phba->sli.slistat.err_attn_event++; |
| 2806 | /* Save status info */ |
| 2807 | phba->work_hs = readl(phba->HSregaddr); |
| 2808 | phba->work_status[0] = readl(phba->MBslimaddr + 0xa8); |
| 2809 | phba->work_status[1] = readl(phba->MBslimaddr + 0xac); |
| 2810 | |
| 2811 | /* Clear Chip error bit */ |
| 2812 | writel(HA_ERATT, phba->HAregaddr); |
| 2813 | readl(phba->HAregaddr); /* flush */ |
| 2814 | |
| 2815 | /* |
| 2816 | * Reseting the HBA is the only reliable way |
| 2817 | * to shutdown interrupt when there is a |
| 2818 | * ERROR. |
| 2819 | */ |
| 2820 | lpfc_sli_send_reset(phba, phba->hba_state); |
| 2821 | } |
| 2822 | |
| 2823 | spin_lock(phba->host->host_lock); |
| 2824 | phba->work_ha |= work_ha_copy; |
| 2825 | if (phba->work_wait) |
| 2826 | wake_up(phba->work_wait); |
| 2827 | spin_unlock(phba->host->host_lock); |
| 2828 | } |
| 2829 | |
| 2830 | ha_copy &= ~(phba->work_ha_mask); |
| 2831 | |
| 2832 | /* |
| 2833 | * Process all events on FCP ring. Take the optimized path for |
| 2834 | * FCP IO. Any other IO is slow path and is handled by |
| 2835 | * the worker thread. |
| 2836 | */ |
| 2837 | status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING))); |
| 2838 | status >>= (4*LPFC_FCP_RING); |
| 2839 | if (status & HA_RXATT) |
| 2840 | lpfc_sli_handle_fast_ring_event(phba, |
| 2841 | &phba->sli.ring[LPFC_FCP_RING], |
| 2842 | status); |
| 2843 | return IRQ_HANDLED; |
| 2844 | |
| 2845 | } /* lpfc_intr_handler */ |