1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * QLogic Fibre Channel HBA Driver
4 * Copyright (c) 2003-2014 QLogic Corporation
5 */
6 #include "qla_def.h"
7 #include "qla_target.h"
8
9 #include <linux/blkdev.h>
10 #include <linux/delay.h>
11
12 #include <scsi/scsi_tcq.h>
13
14 /**
15 * qla2x00_get_cmd_direction() - Determine control_flag data direction.
16 * @sp: SCSI command
17 *
18 * Returns the proper CF_* direction based on CDB.
19 */
20 static inline uint16_t
qla2x00_get_cmd_direction(srb_t * sp)21 qla2x00_get_cmd_direction(srb_t *sp)
22 {
23 uint16_t cflags;
24 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
25 struct scsi_qla_host *vha = sp->vha;
26
27 cflags = 0;
28
29 /* Set transfer direction */
30 if (cmd->sc_data_direction == DMA_TO_DEVICE) {
31 cflags = CF_WRITE;
32 vha->qla_stats.output_bytes += scsi_bufflen(cmd);
33 vha->qla_stats.output_requests++;
34 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
35 cflags = CF_READ;
36 vha->qla_stats.input_bytes += scsi_bufflen(cmd);
37 vha->qla_stats.input_requests++;
38 }
39 return (cflags);
40 }
41
42 /**
43 * qla2x00_calc_iocbs_32() - Determine number of Command Type 2 and
44 * Continuation Type 0 IOCBs to allocate.
45 *
46 * @dsds: number of data segment descriptors needed
47 *
48 * Returns the number of IOCB entries needed to store @dsds.
49 */
50 uint16_t
qla2x00_calc_iocbs_32(uint16_t dsds)51 qla2x00_calc_iocbs_32(uint16_t dsds)
52 {
53 uint16_t iocbs;
54
55 iocbs = 1;
56 if (dsds > 3) {
57 iocbs += (dsds - 3) / 7;
58 if ((dsds - 3) % 7)
59 iocbs++;
60 }
61 return (iocbs);
62 }
63
64 /**
65 * qla2x00_calc_iocbs_64() - Determine number of Command Type 3 and
66 * Continuation Type 1 IOCBs to allocate.
67 *
68 * @dsds: number of data segment descriptors needed
69 *
70 * Returns the number of IOCB entries needed to store @dsds.
71 */
72 uint16_t
qla2x00_calc_iocbs_64(uint16_t dsds)73 qla2x00_calc_iocbs_64(uint16_t dsds)
74 {
75 uint16_t iocbs;
76
77 iocbs = 1;
78 if (dsds > 2) {
79 iocbs += (dsds - 2) / 5;
80 if ((dsds - 2) % 5)
81 iocbs++;
82 }
83 return (iocbs);
84 }
85
86 /**
87 * qla2x00_prep_cont_type0_iocb() - Initialize a Continuation Type 0 IOCB.
88 * @vha: HA context
89 *
90 * Returns a pointer to the Continuation Type 0 IOCB packet.
91 */
92 static inline cont_entry_t *
qla2x00_prep_cont_type0_iocb(struct scsi_qla_host * vha)93 qla2x00_prep_cont_type0_iocb(struct scsi_qla_host *vha)
94 {
95 cont_entry_t *cont_pkt;
96 struct req_que *req = vha->req;
97 /* Adjust ring index. */
98 req->ring_index++;
99 if (req->ring_index == req->length) {
100 req->ring_index = 0;
101 req->ring_ptr = req->ring;
102 } else {
103 req->ring_ptr++;
104 }
105
106 cont_pkt = (cont_entry_t *)req->ring_ptr;
107
108 /* Load packet defaults. */
109 put_unaligned_le32(CONTINUE_TYPE, &cont_pkt->entry_type);
110
111 return (cont_pkt);
112 }
113
114 /**
115 * qla2x00_prep_cont_type1_iocb() - Initialize a Continuation Type 1 IOCB.
116 * @vha: HA context
117 * @req: request queue
118 *
119 * Returns a pointer to the continuation type 1 IOCB packet.
120 */
121 cont_a64_entry_t *
qla2x00_prep_cont_type1_iocb(scsi_qla_host_t * vha,struct req_que * req)122 qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *vha, struct req_que *req)
123 {
124 cont_a64_entry_t *cont_pkt;
125
126 /* Adjust ring index. */
127 req->ring_index++;
128 if (req->ring_index == req->length) {
129 req->ring_index = 0;
130 req->ring_ptr = req->ring;
131 } else {
132 req->ring_ptr++;
133 }
134
135 cont_pkt = (cont_a64_entry_t *)req->ring_ptr;
136
137 /* Load packet defaults. */
138 put_unaligned_le32(IS_QLAFX00(vha->hw) ? CONTINUE_A64_TYPE_FX00 :
139 CONTINUE_A64_TYPE, &cont_pkt->entry_type);
140
141 return (cont_pkt);
142 }
143
144 inline int
qla24xx_configure_prot_mode(srb_t * sp,uint16_t * fw_prot_opts)145 qla24xx_configure_prot_mode(srb_t *sp, uint16_t *fw_prot_opts)
146 {
147 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
148
149 /* We always use DIFF Bundling for best performance */
150 *fw_prot_opts = 0;
151
152 /* Translate SCSI opcode to a protection opcode */
153 switch (scsi_get_prot_op(cmd)) {
154 case SCSI_PROT_READ_STRIP:
155 *fw_prot_opts |= PO_MODE_DIF_REMOVE;
156 break;
157 case SCSI_PROT_WRITE_INSERT:
158 *fw_prot_opts |= PO_MODE_DIF_INSERT;
159 break;
160 case SCSI_PROT_READ_INSERT:
161 *fw_prot_opts |= PO_MODE_DIF_INSERT;
162 break;
163 case SCSI_PROT_WRITE_STRIP:
164 *fw_prot_opts |= PO_MODE_DIF_REMOVE;
165 break;
166 case SCSI_PROT_READ_PASS:
167 case SCSI_PROT_WRITE_PASS:
168 if (cmd->prot_flags & SCSI_PROT_IP_CHECKSUM)
169 *fw_prot_opts |= PO_MODE_DIF_TCP_CKSUM;
170 else
171 *fw_prot_opts |= PO_MODE_DIF_PASS;
172 break;
173 default: /* Normal Request */
174 *fw_prot_opts |= PO_MODE_DIF_PASS;
175 break;
176 }
177
178 if (!(cmd->prot_flags & SCSI_PROT_GUARD_CHECK))
179 *fw_prot_opts |= PO_DISABLE_GUARD_CHECK;
180
181 return scsi_prot_sg_count(cmd);
182 }
183
184 /*
185 * qla2x00_build_scsi_iocbs_32() - Build IOCB command utilizing 32bit
186 * capable IOCB types.
187 *
188 * @sp: SRB command to process
189 * @cmd_pkt: Command type 2 IOCB
190 * @tot_dsds: Total number of segments to transfer
191 */
qla2x00_build_scsi_iocbs_32(srb_t * sp,cmd_entry_t * cmd_pkt,uint16_t tot_dsds)192 void qla2x00_build_scsi_iocbs_32(srb_t *sp, cmd_entry_t *cmd_pkt,
193 uint16_t tot_dsds)
194 {
195 uint16_t avail_dsds;
196 struct dsd32 *cur_dsd;
197 scsi_qla_host_t *vha;
198 struct scsi_cmnd *cmd;
199 struct scatterlist *sg;
200 int i;
201
202 cmd = GET_CMD_SP(sp);
203
204 /* Update entry type to indicate Command Type 2 IOCB */
205 put_unaligned_le32(COMMAND_TYPE, &cmd_pkt->entry_type);
206
207 /* No data transfer */
208 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
209 cmd_pkt->byte_count = cpu_to_le32(0);
210 return;
211 }
212
213 vha = sp->vha;
214 cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp));
215
216 /* Three DSDs are available in the Command Type 2 IOCB */
217 avail_dsds = ARRAY_SIZE(cmd_pkt->dsd32);
218 cur_dsd = cmd_pkt->dsd32;
219
220 /* Load data segments */
221 scsi_for_each_sg(cmd, sg, tot_dsds, i) {
222 cont_entry_t *cont_pkt;
223
224 /* Allocate additional continuation packets? */
225 if (avail_dsds == 0) {
226 /*
227 * Seven DSDs are available in the Continuation
228 * Type 0 IOCB.
229 */
230 cont_pkt = qla2x00_prep_cont_type0_iocb(vha);
231 cur_dsd = cont_pkt->dsd;
232 avail_dsds = ARRAY_SIZE(cont_pkt->dsd);
233 }
234
235 append_dsd32(&cur_dsd, sg);
236 avail_dsds--;
237 }
238 }
239
240 /**
241 * qla2x00_build_scsi_iocbs_64() - Build IOCB command utilizing 64bit
242 * capable IOCB types.
243 *
244 * @sp: SRB command to process
245 * @cmd_pkt: Command type 3 IOCB
246 * @tot_dsds: Total number of segments to transfer
247 */
qla2x00_build_scsi_iocbs_64(srb_t * sp,cmd_entry_t * cmd_pkt,uint16_t tot_dsds)248 void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt,
249 uint16_t tot_dsds)
250 {
251 uint16_t avail_dsds;
252 struct dsd64 *cur_dsd;
253 scsi_qla_host_t *vha;
254 struct scsi_cmnd *cmd;
255 struct scatterlist *sg;
256 int i;
257
258 cmd = GET_CMD_SP(sp);
259
260 /* Update entry type to indicate Command Type 3 IOCB */
261 put_unaligned_le32(COMMAND_A64_TYPE, &cmd_pkt->entry_type);
262
263 /* No data transfer */
264 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
265 cmd_pkt->byte_count = cpu_to_le32(0);
266 return;
267 }
268
269 vha = sp->vha;
270 cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp));
271
272 /* Two DSDs are available in the Command Type 3 IOCB */
273 avail_dsds = ARRAY_SIZE(cmd_pkt->dsd64);
274 cur_dsd = cmd_pkt->dsd64;
275
276 /* Load data segments */
277 scsi_for_each_sg(cmd, sg, tot_dsds, i) {
278 cont_a64_entry_t *cont_pkt;
279
280 /* Allocate additional continuation packets? */
281 if (avail_dsds == 0) {
282 /*
283 * Five DSDs are available in the Continuation
284 * Type 1 IOCB.
285 */
286 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req);
287 cur_dsd = cont_pkt->dsd;
288 avail_dsds = ARRAY_SIZE(cont_pkt->dsd);
289 }
290
291 append_dsd64(&cur_dsd, sg);
292 avail_dsds--;
293 }
294 }
295
296 /*
297 * Find the first handle that is not in use, starting from
298 * req->current_outstanding_cmd + 1. The caller must hold the lock that is
299 * associated with @req.
300 */
qla2xxx_get_next_handle(struct req_que * req)301 uint32_t qla2xxx_get_next_handle(struct req_que *req)
302 {
303 uint32_t index, handle = req->current_outstanding_cmd;
304
305 for (index = 1; index < req->num_outstanding_cmds; index++) {
306 handle++;
307 if (handle == req->num_outstanding_cmds)
308 handle = 1;
309 if (!req->outstanding_cmds[handle])
310 return handle;
311 }
312
313 return 0;
314 }
315
316 /**
317 * qla2x00_start_scsi() - Send a SCSI command to the ISP
318 * @sp: command to send to the ISP
319 *
320 * Returns non-zero if a failure occurred, else zero.
321 */
322 int
qla2x00_start_scsi(srb_t * sp)323 qla2x00_start_scsi(srb_t *sp)
324 {
325 int nseg;
326 unsigned long flags;
327 scsi_qla_host_t *vha;
328 struct scsi_cmnd *cmd;
329 uint32_t *clr_ptr;
330 uint32_t handle;
331 cmd_entry_t *cmd_pkt;
332 uint16_t cnt;
333 uint16_t req_cnt;
334 uint16_t tot_dsds;
335 struct device_reg_2xxx __iomem *reg;
336 struct qla_hw_data *ha;
337 struct req_que *req;
338 struct rsp_que *rsp;
339
340 /* Setup device pointers. */
341 vha = sp->vha;
342 ha = vha->hw;
343 reg = &ha->iobase->isp;
344 cmd = GET_CMD_SP(sp);
345 req = ha->req_q_map[0];
346 rsp = ha->rsp_q_map[0];
347 /* So we know we haven't pci_map'ed anything yet */
348 tot_dsds = 0;
349
350 /* Send marker if required */
351 if (vha->marker_needed != 0) {
352 if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) !=
353 QLA_SUCCESS) {
354 return (QLA_FUNCTION_FAILED);
355 }
356 vha->marker_needed = 0;
357 }
358
359 /* Acquire ring specific lock */
360 spin_lock_irqsave(&ha->hardware_lock, flags);
361
362 handle = qla2xxx_get_next_handle(req);
363 if (handle == 0)
364 goto queuing_error;
365
366 /* Map the sg table so we have an accurate count of sg entries needed */
367 if (scsi_sg_count(cmd)) {
368 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
369 scsi_sg_count(cmd), cmd->sc_data_direction);
370 if (unlikely(!nseg))
371 goto queuing_error;
372 } else
373 nseg = 0;
374
375 tot_dsds = nseg;
376
377 /* Calculate the number of request entries needed. */
378 req_cnt = ha->isp_ops->calc_req_entries(tot_dsds);
379 if (req->cnt < (req_cnt + 2)) {
380 cnt = rd_reg_word_relaxed(ISP_REQ_Q_OUT(ha, reg));
381 if (req->ring_index < cnt)
382 req->cnt = cnt - req->ring_index;
383 else
384 req->cnt = req->length -
385 (req->ring_index - cnt);
386 /* If still no head room then bail out */
387 if (req->cnt < (req_cnt + 2))
388 goto queuing_error;
389 }
390
391 /* Build command packet */
392 req->current_outstanding_cmd = handle;
393 req->outstanding_cmds[handle] = sp;
394 sp->handle = handle;
395 cmd->host_scribble = (unsigned char *)(unsigned long)handle;
396 req->cnt -= req_cnt;
397
398 cmd_pkt = (cmd_entry_t *)req->ring_ptr;
399 cmd_pkt->handle = handle;
400 /* Zero out remaining portion of packet. */
401 clr_ptr = (uint32_t *)cmd_pkt + 2;
402 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
403 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
404
405 /* Set target ID and LUN number*/
406 SET_TARGET_ID(ha, cmd_pkt->target, sp->fcport->loop_id);
407 cmd_pkt->lun = cpu_to_le16(cmd->device->lun);
408 cmd_pkt->control_flags = cpu_to_le16(CF_SIMPLE_TAG);
409
410 /* Load SCSI command packet. */
411 memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len);
412 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
413
414 /* Build IOCB segments */
415 ha->isp_ops->build_iocbs(sp, cmd_pkt, tot_dsds);
416
417 /* Set total data segment count. */
418 cmd_pkt->entry_count = (uint8_t)req_cnt;
419 wmb();
420
421 /* Adjust ring index. */
422 req->ring_index++;
423 if (req->ring_index == req->length) {
424 req->ring_index = 0;
425 req->ring_ptr = req->ring;
426 } else
427 req->ring_ptr++;
428
429 sp->flags |= SRB_DMA_VALID;
430
431 /* Set chip new ring index. */
432 wrt_reg_word(ISP_REQ_Q_IN(ha, reg), req->ring_index);
433 rd_reg_word_relaxed(ISP_REQ_Q_IN(ha, reg)); /* PCI Posting. */
434
435 /* Manage unprocessed RIO/ZIO commands in response queue. */
436 if (vha->flags.process_response_queue &&
437 rsp->ring_ptr->signature != RESPONSE_PROCESSED)
438 qla2x00_process_response_queue(rsp);
439
440 spin_unlock_irqrestore(&ha->hardware_lock, flags);
441 return (QLA_SUCCESS);
442
443 queuing_error:
444 if (tot_dsds)
445 scsi_dma_unmap(cmd);
446
447 spin_unlock_irqrestore(&ha->hardware_lock, flags);
448
449 return (QLA_FUNCTION_FAILED);
450 }
451
452 /**
453 * qla2x00_start_iocbs() - Execute the IOCB command
454 * @vha: HA context
455 * @req: request queue
456 */
457 void
qla2x00_start_iocbs(struct scsi_qla_host * vha,struct req_que * req)458 qla2x00_start_iocbs(struct scsi_qla_host *vha, struct req_que *req)
459 {
460 struct qla_hw_data *ha = vha->hw;
461 device_reg_t *reg = ISP_QUE_REG(ha, req->id);
462
463 if (IS_P3P_TYPE(ha)) {
464 qla82xx_start_iocbs(vha);
465 } else {
466 /* Adjust ring index. */
467 req->ring_index++;
468 if (req->ring_index == req->length) {
469 req->ring_index = 0;
470 req->ring_ptr = req->ring;
471 } else
472 req->ring_ptr++;
473
474 /* Set chip new ring index. */
475 if (ha->mqenable || IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
476 wrt_reg_dword(req->req_q_in, req->ring_index);
477 } else if (IS_QLA83XX(ha)) {
478 wrt_reg_dword(req->req_q_in, req->ring_index);
479 rd_reg_dword_relaxed(&ha->iobase->isp24.hccr);
480 } else if (IS_QLAFX00(ha)) {
481 wrt_reg_dword(®->ispfx00.req_q_in, req->ring_index);
482 rd_reg_dword_relaxed(®->ispfx00.req_q_in);
483 QLAFX00_SET_HST_INTR(ha, ha->rqstq_intr_code);
484 } else if (IS_FWI2_CAPABLE(ha)) {
485 wrt_reg_dword(®->isp24.req_q_in, req->ring_index);
486 rd_reg_dword_relaxed(®->isp24.req_q_in);
487 } else {
488 wrt_reg_word(ISP_REQ_Q_IN(ha, ®->isp),
489 req->ring_index);
490 rd_reg_word_relaxed(ISP_REQ_Q_IN(ha, ®->isp));
491 }
492 }
493 }
494
495 /**
496 * __qla2x00_marker() - Send a marker IOCB to the firmware.
497 * @vha: HA context
498 * @qpair: queue pair pointer
499 * @loop_id: loop ID
500 * @lun: LUN
501 * @type: marker modifier
502 *
503 * Can be called from both normal and interrupt context.
504 *
505 * Returns non-zero if a failure occurred, else zero.
506 */
507 static int
__qla2x00_marker(struct scsi_qla_host * vha,struct qla_qpair * qpair,uint16_t loop_id,uint64_t lun,uint8_t type)508 __qla2x00_marker(struct scsi_qla_host *vha, struct qla_qpair *qpair,
509 uint16_t loop_id, uint64_t lun, uint8_t type)
510 {
511 mrk_entry_t *mrk;
512 struct mrk_entry_24xx *mrk24 = NULL;
513 struct req_que *req = qpair->req;
514 struct qla_hw_data *ha = vha->hw;
515 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
516
517 mrk = (mrk_entry_t *)__qla2x00_alloc_iocbs(qpair, NULL);
518 if (mrk == NULL) {
519 ql_log(ql_log_warn, base_vha, 0x3026,
520 "Failed to allocate Marker IOCB.\n");
521
522 return (QLA_FUNCTION_FAILED);
523 }
524
525 mrk->entry_type = MARKER_TYPE;
526 mrk->modifier = type;
527 if (type != MK_SYNC_ALL) {
528 if (IS_FWI2_CAPABLE(ha)) {
529 mrk24 = (struct mrk_entry_24xx *) mrk;
530 mrk24->nport_handle = cpu_to_le16(loop_id);
531 int_to_scsilun(lun, (struct scsi_lun *)&mrk24->lun);
532 host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun));
533 mrk24->vp_index = vha->vp_idx;
534 mrk24->handle = make_handle(req->id, mrk24->handle);
535 } else {
536 SET_TARGET_ID(ha, mrk->target, loop_id);
537 mrk->lun = cpu_to_le16((uint16_t)lun);
538 }
539 }
540 wmb();
541
542 qla2x00_start_iocbs(vha, req);
543
544 return (QLA_SUCCESS);
545 }
546
547 int
qla2x00_marker(struct scsi_qla_host * vha,struct qla_qpair * qpair,uint16_t loop_id,uint64_t lun,uint8_t type)548 qla2x00_marker(struct scsi_qla_host *vha, struct qla_qpair *qpair,
549 uint16_t loop_id, uint64_t lun, uint8_t type)
550 {
551 int ret;
552 unsigned long flags = 0;
553
554 spin_lock_irqsave(qpair->qp_lock_ptr, flags);
555 ret = __qla2x00_marker(vha, qpair, loop_id, lun, type);
556 spin_unlock_irqrestore(qpair->qp_lock_ptr, flags);
557
558 return (ret);
559 }
560
561 /*
562 * qla2x00_issue_marker
563 *
564 * Issue marker
565 * Caller CAN have hardware lock held as specified by ha_locked parameter.
566 * Might release it, then reaquire.
567 */
qla2x00_issue_marker(scsi_qla_host_t * vha,int ha_locked)568 int qla2x00_issue_marker(scsi_qla_host_t *vha, int ha_locked)
569 {
570 if (ha_locked) {
571 if (__qla2x00_marker(vha, vha->hw->base_qpair, 0, 0,
572 MK_SYNC_ALL) != QLA_SUCCESS)
573 return QLA_FUNCTION_FAILED;
574 } else {
575 if (qla2x00_marker(vha, vha->hw->base_qpair, 0, 0,
576 MK_SYNC_ALL) != QLA_SUCCESS)
577 return QLA_FUNCTION_FAILED;
578 }
579 vha->marker_needed = 0;
580
581 return QLA_SUCCESS;
582 }
583
584 static inline int
qla24xx_build_scsi_type_6_iocbs(srb_t * sp,struct cmd_type_6 * cmd_pkt,uint16_t tot_dsds)585 qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt,
586 uint16_t tot_dsds)
587 {
588 struct dsd64 *cur_dsd = NULL, *next_dsd;
589 scsi_qla_host_t *vha;
590 struct qla_hw_data *ha;
591 struct scsi_cmnd *cmd;
592 struct scatterlist *cur_seg;
593 uint8_t avail_dsds;
594 uint8_t first_iocb = 1;
595 uint32_t dsd_list_len;
596 struct dsd_dma *dsd_ptr;
597 struct ct6_dsd *ctx;
598 struct qla_qpair *qpair = sp->qpair;
599
600 cmd = GET_CMD_SP(sp);
601
602 /* Update entry type to indicate Command Type 3 IOCB */
603 put_unaligned_le32(COMMAND_TYPE_6, &cmd_pkt->entry_type);
604
605 /* No data transfer */
606 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
607 cmd_pkt->byte_count = cpu_to_le32(0);
608 return 0;
609 }
610
611 vha = sp->vha;
612 ha = vha->hw;
613
614 /* Set transfer direction */
615 if (cmd->sc_data_direction == DMA_TO_DEVICE) {
616 cmd_pkt->control_flags = cpu_to_le16(CF_WRITE_DATA);
617 qpair->counters.output_bytes += scsi_bufflen(cmd);
618 qpair->counters.output_requests++;
619 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
620 cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA);
621 qpair->counters.input_bytes += scsi_bufflen(cmd);
622 qpair->counters.input_requests++;
623 }
624
625 cur_seg = scsi_sglist(cmd);
626 ctx = sp->u.scmd.ct6_ctx;
627
628 while (tot_dsds) {
629 avail_dsds = (tot_dsds > QLA_DSDS_PER_IOCB) ?
630 QLA_DSDS_PER_IOCB : tot_dsds;
631 tot_dsds -= avail_dsds;
632 dsd_list_len = (avail_dsds + 1) * QLA_DSD_SIZE;
633
634 dsd_ptr = list_first_entry(&ha->gbl_dsd_list,
635 struct dsd_dma, list);
636 next_dsd = dsd_ptr->dsd_addr;
637 list_del(&dsd_ptr->list);
638 ha->gbl_dsd_avail--;
639 list_add_tail(&dsd_ptr->list, &ctx->dsd_list);
640 ctx->dsd_use_cnt++;
641 ha->gbl_dsd_inuse++;
642
643 if (first_iocb) {
644 first_iocb = 0;
645 put_unaligned_le64(dsd_ptr->dsd_list_dma,
646 &cmd_pkt->fcp_dsd.address);
647 cmd_pkt->fcp_dsd.length = cpu_to_le32(dsd_list_len);
648 } else {
649 put_unaligned_le64(dsd_ptr->dsd_list_dma,
650 &cur_dsd->address);
651 cur_dsd->length = cpu_to_le32(dsd_list_len);
652 cur_dsd++;
653 }
654 cur_dsd = next_dsd;
655 while (avail_dsds) {
656 append_dsd64(&cur_dsd, cur_seg);
657 cur_seg = sg_next(cur_seg);
658 avail_dsds--;
659 }
660 }
661
662 /* Null termination */
663 cur_dsd->address = 0;
664 cur_dsd->length = 0;
665 cur_dsd++;
666 cmd_pkt->control_flags |= cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE);
667 return 0;
668 }
669
670 /*
671 * qla24xx_calc_dsd_lists() - Determine number of DSD list required
672 * for Command Type 6.
673 *
674 * @dsds: number of data segment descriptors needed
675 *
676 * Returns the number of dsd list needed to store @dsds.
677 */
678 static inline uint16_t
qla24xx_calc_dsd_lists(uint16_t dsds)679 qla24xx_calc_dsd_lists(uint16_t dsds)
680 {
681 uint16_t dsd_lists = 0;
682
683 dsd_lists = (dsds/QLA_DSDS_PER_IOCB);
684 if (dsds % QLA_DSDS_PER_IOCB)
685 dsd_lists++;
686 return dsd_lists;
687 }
688
689
690 /**
691 * qla24xx_build_scsi_iocbs() - Build IOCB command utilizing Command Type 7
692 * IOCB types.
693 *
694 * @sp: SRB command to process
695 * @cmd_pkt: Command type 3 IOCB
696 * @tot_dsds: Total number of segments to transfer
697 * @req: pointer to request queue
698 */
699 inline void
qla24xx_build_scsi_iocbs(srb_t * sp,struct cmd_type_7 * cmd_pkt,uint16_t tot_dsds,struct req_que * req)700 qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt,
701 uint16_t tot_dsds, struct req_que *req)
702 {
703 uint16_t avail_dsds;
704 struct dsd64 *cur_dsd;
705 scsi_qla_host_t *vha;
706 struct scsi_cmnd *cmd;
707 struct scatterlist *sg;
708 int i;
709 struct qla_qpair *qpair = sp->qpair;
710
711 cmd = GET_CMD_SP(sp);
712
713 /* Update entry type to indicate Command Type 3 IOCB */
714 put_unaligned_le32(COMMAND_TYPE_7, &cmd_pkt->entry_type);
715
716 /* No data transfer */
717 if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
718 cmd_pkt->byte_count = cpu_to_le32(0);
719 return;
720 }
721
722 vha = sp->vha;
723
724 /* Set transfer direction */
725 if (cmd->sc_data_direction == DMA_TO_DEVICE) {
726 cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_WRITE_DATA);
727 qpair->counters.output_bytes += scsi_bufflen(cmd);
728 qpair->counters.output_requests++;
729 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
730 cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_READ_DATA);
731 qpair->counters.input_bytes += scsi_bufflen(cmd);
732 qpair->counters.input_requests++;
733 }
734
735 /* One DSD is available in the Command Type 3 IOCB */
736 avail_dsds = 1;
737 cur_dsd = &cmd_pkt->dsd;
738
739 /* Load data segments */
740
741 scsi_for_each_sg(cmd, sg, tot_dsds, i) {
742 cont_a64_entry_t *cont_pkt;
743
744 /* Allocate additional continuation packets? */
745 if (avail_dsds == 0) {
746 /*
747 * Five DSDs are available in the Continuation
748 * Type 1 IOCB.
749 */
750 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, req);
751 cur_dsd = cont_pkt->dsd;
752 avail_dsds = ARRAY_SIZE(cont_pkt->dsd);
753 }
754
755 append_dsd64(&cur_dsd, sg);
756 avail_dsds--;
757 }
758 }
759
760 struct fw_dif_context {
761 __le32 ref_tag;
762 __le16 app_tag;
763 uint8_t ref_tag_mask[4]; /* Validation/Replacement Mask*/
764 uint8_t app_tag_mask[2]; /* Validation/Replacement Mask*/
765 };
766
767 /*
768 * qla24xx_set_t10dif_tags_from_cmd - Extract Ref and App tags from SCSI command
769 *
770 */
771 static inline void
qla24xx_set_t10dif_tags(srb_t * sp,struct fw_dif_context * pkt,unsigned int protcnt)772 qla24xx_set_t10dif_tags(srb_t *sp, struct fw_dif_context *pkt,
773 unsigned int protcnt)
774 {
775 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
776
777 pkt->ref_tag = cpu_to_le32(scsi_prot_ref_tag(cmd));
778
779 if (cmd->prot_flags & SCSI_PROT_REF_CHECK &&
780 qla2x00_hba_err_chk_enabled(sp)) {
781 pkt->ref_tag_mask[0] = 0xff;
782 pkt->ref_tag_mask[1] = 0xff;
783 pkt->ref_tag_mask[2] = 0xff;
784 pkt->ref_tag_mask[3] = 0xff;
785 }
786
787 pkt->app_tag = cpu_to_le16(0);
788 pkt->app_tag_mask[0] = 0x0;
789 pkt->app_tag_mask[1] = 0x0;
790 }
791
792 int
qla24xx_get_one_block_sg(uint32_t blk_sz,struct qla2_sgx * sgx,uint32_t * partial)793 qla24xx_get_one_block_sg(uint32_t blk_sz, struct qla2_sgx *sgx,
794 uint32_t *partial)
795 {
796 struct scatterlist *sg;
797 uint32_t cumulative_partial, sg_len;
798 dma_addr_t sg_dma_addr;
799
800 if (sgx->num_bytes == sgx->tot_bytes)
801 return 0;
802
803 sg = sgx->cur_sg;
804 cumulative_partial = sgx->tot_partial;
805
806 sg_dma_addr = sg_dma_address(sg);
807 sg_len = sg_dma_len(sg);
808
809 sgx->dma_addr = sg_dma_addr + sgx->bytes_consumed;
810
811 if ((cumulative_partial + (sg_len - sgx->bytes_consumed)) >= blk_sz) {
812 sgx->dma_len = (blk_sz - cumulative_partial);
813 sgx->tot_partial = 0;
814 sgx->num_bytes += blk_sz;
815 *partial = 0;
816 } else {
817 sgx->dma_len = sg_len - sgx->bytes_consumed;
818 sgx->tot_partial += sgx->dma_len;
819 *partial = 1;
820 }
821
822 sgx->bytes_consumed += sgx->dma_len;
823
824 if (sg_len == sgx->bytes_consumed) {
825 sg = sg_next(sg);
826 sgx->num_sg++;
827 sgx->cur_sg = sg;
828 sgx->bytes_consumed = 0;
829 }
830
831 return 1;
832 }
833
834 int
qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data * ha,srb_t * sp,struct dsd64 * dsd,uint16_t tot_dsds,struct qla_tc_param * tc)835 qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data *ha, srb_t *sp,
836 struct dsd64 *dsd, uint16_t tot_dsds, struct qla_tc_param *tc)
837 {
838 void *next_dsd;
839 uint8_t avail_dsds = 0;
840 uint32_t dsd_list_len;
841 struct dsd_dma *dsd_ptr;
842 struct scatterlist *sg_prot;
843 struct dsd64 *cur_dsd = dsd;
844 uint16_t used_dsds = tot_dsds;
845 uint32_t prot_int; /* protection interval */
846 uint32_t partial;
847 struct qla2_sgx sgx;
848 dma_addr_t sle_dma;
849 uint32_t sle_dma_len, tot_prot_dma_len = 0;
850 struct scsi_cmnd *cmd;
851
852 memset(&sgx, 0, sizeof(struct qla2_sgx));
853 if (sp) {
854 cmd = GET_CMD_SP(sp);
855 prot_int = scsi_prot_interval(cmd);
856
857 sgx.tot_bytes = scsi_bufflen(cmd);
858 sgx.cur_sg = scsi_sglist(cmd);
859 sgx.sp = sp;
860
861 sg_prot = scsi_prot_sglist(cmd);
862 } else if (tc) {
863 prot_int = tc->blk_sz;
864 sgx.tot_bytes = tc->bufflen;
865 sgx.cur_sg = tc->sg;
866 sg_prot = tc->prot_sg;
867 } else {
868 BUG();
869 return 1;
870 }
871
872 while (qla24xx_get_one_block_sg(prot_int, &sgx, &partial)) {
873
874 sle_dma = sgx.dma_addr;
875 sle_dma_len = sgx.dma_len;
876 alloc_and_fill:
877 /* Allocate additional continuation packets? */
878 if (avail_dsds == 0) {
879 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ?
880 QLA_DSDS_PER_IOCB : used_dsds;
881 dsd_list_len = (avail_dsds + 1) * 12;
882 used_dsds -= avail_dsds;
883
884 /* allocate tracking DS */
885 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
886 if (!dsd_ptr)
887 return 1;
888
889 /* allocate new list */
890 dsd_ptr->dsd_addr = next_dsd =
891 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
892 &dsd_ptr->dsd_list_dma);
893
894 if (!next_dsd) {
895 /*
896 * Need to cleanup only this dsd_ptr, rest
897 * will be done by sp_free_dma()
898 */
899 kfree(dsd_ptr);
900 return 1;
901 }
902
903 if (sp) {
904 list_add_tail(&dsd_ptr->list,
905 &sp->u.scmd.crc_ctx->dsd_list);
906
907 sp->flags |= SRB_CRC_CTX_DSD_VALID;
908 } else {
909 list_add_tail(&dsd_ptr->list,
910 &(tc->ctx->dsd_list));
911 *tc->ctx_dsd_alloced = 1;
912 }
913
914
915 /* add new list to cmd iocb or last list */
916 put_unaligned_le64(dsd_ptr->dsd_list_dma,
917 &cur_dsd->address);
918 cur_dsd->length = cpu_to_le32(dsd_list_len);
919 cur_dsd = next_dsd;
920 }
921 put_unaligned_le64(sle_dma, &cur_dsd->address);
922 cur_dsd->length = cpu_to_le32(sle_dma_len);
923 cur_dsd++;
924 avail_dsds--;
925
926 if (partial == 0) {
927 /* Got a full protection interval */
928 sle_dma = sg_dma_address(sg_prot) + tot_prot_dma_len;
929 sle_dma_len = 8;
930
931 tot_prot_dma_len += sle_dma_len;
932 if (tot_prot_dma_len == sg_dma_len(sg_prot)) {
933 tot_prot_dma_len = 0;
934 sg_prot = sg_next(sg_prot);
935 }
936
937 partial = 1; /* So as to not re-enter this block */
938 goto alloc_and_fill;
939 }
940 }
941 /* Null termination */
942 cur_dsd->address = 0;
943 cur_dsd->length = 0;
944 cur_dsd++;
945 return 0;
946 }
947
948 int
qla24xx_walk_and_build_sglist(struct qla_hw_data * ha,srb_t * sp,struct dsd64 * dsd,uint16_t tot_dsds,struct qla_tc_param * tc)949 qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp,
950 struct dsd64 *dsd, uint16_t tot_dsds, struct qla_tc_param *tc)
951 {
952 void *next_dsd;
953 uint8_t avail_dsds = 0;
954 uint32_t dsd_list_len;
955 struct dsd_dma *dsd_ptr;
956 struct scatterlist *sg, *sgl;
957 struct dsd64 *cur_dsd = dsd;
958 int i;
959 uint16_t used_dsds = tot_dsds;
960 struct scsi_cmnd *cmd;
961
962 if (sp) {
963 cmd = GET_CMD_SP(sp);
964 sgl = scsi_sglist(cmd);
965 } else if (tc) {
966 sgl = tc->sg;
967 } else {
968 BUG();
969 return 1;
970 }
971
972
973 for_each_sg(sgl, sg, tot_dsds, i) {
974 /* Allocate additional continuation packets? */
975 if (avail_dsds == 0) {
976 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ?
977 QLA_DSDS_PER_IOCB : used_dsds;
978 dsd_list_len = (avail_dsds + 1) * 12;
979 used_dsds -= avail_dsds;
980
981 /* allocate tracking DS */
982 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
983 if (!dsd_ptr)
984 return 1;
985
986 /* allocate new list */
987 dsd_ptr->dsd_addr = next_dsd =
988 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
989 &dsd_ptr->dsd_list_dma);
990
991 if (!next_dsd) {
992 /*
993 * Need to cleanup only this dsd_ptr, rest
994 * will be done by sp_free_dma()
995 */
996 kfree(dsd_ptr);
997 return 1;
998 }
999
1000 if (sp) {
1001 list_add_tail(&dsd_ptr->list,
1002 &sp->u.scmd.crc_ctx->dsd_list);
1003
1004 sp->flags |= SRB_CRC_CTX_DSD_VALID;
1005 } else {
1006 list_add_tail(&dsd_ptr->list,
1007 &(tc->ctx->dsd_list));
1008 *tc->ctx_dsd_alloced = 1;
1009 }
1010
1011 /* add new list to cmd iocb or last list */
1012 put_unaligned_le64(dsd_ptr->dsd_list_dma,
1013 &cur_dsd->address);
1014 cur_dsd->length = cpu_to_le32(dsd_list_len);
1015 cur_dsd = next_dsd;
1016 }
1017 append_dsd64(&cur_dsd, sg);
1018 avail_dsds--;
1019
1020 }
1021 /* Null termination */
1022 cur_dsd->address = 0;
1023 cur_dsd->length = 0;
1024 cur_dsd++;
1025 return 0;
1026 }
1027
1028 int
qla24xx_walk_and_build_prot_sglist(struct qla_hw_data * ha,srb_t * sp,struct dsd64 * cur_dsd,uint16_t tot_dsds,struct qla_tgt_cmd * tc)1029 qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp,
1030 struct dsd64 *cur_dsd, uint16_t tot_dsds, struct qla_tgt_cmd *tc)
1031 {
1032 struct dsd_dma *dsd_ptr = NULL, *dif_dsd, *nxt_dsd;
1033 struct scatterlist *sg, *sgl;
1034 struct crc_context *difctx = NULL;
1035 struct scsi_qla_host *vha;
1036 uint dsd_list_len;
1037 uint avail_dsds = 0;
1038 uint used_dsds = tot_dsds;
1039 bool dif_local_dma_alloc = false;
1040 bool direction_to_device = false;
1041 int i;
1042
1043 if (sp) {
1044 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1045
1046 sgl = scsi_prot_sglist(cmd);
1047 vha = sp->vha;
1048 difctx = sp->u.scmd.crc_ctx;
1049 direction_to_device = cmd->sc_data_direction == DMA_TO_DEVICE;
1050 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe021,
1051 "%s: scsi_cmnd: %p, crc_ctx: %p, sp: %p\n",
1052 __func__, cmd, difctx, sp);
1053 } else if (tc) {
1054 vha = tc->vha;
1055 sgl = tc->prot_sg;
1056 difctx = tc->ctx;
1057 direction_to_device = tc->dma_data_direction == DMA_TO_DEVICE;
1058 } else {
1059 BUG();
1060 return 1;
1061 }
1062
1063 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe021,
1064 "%s: enter (write=%u)\n", __func__, direction_to_device);
1065
1066 /* if initiator doing write or target doing read */
1067 if (direction_to_device) {
1068 for_each_sg(sgl, sg, tot_dsds, i) {
1069 u64 sle_phys = sg_phys(sg);
1070
1071 /* If SGE addr + len flips bits in upper 32-bits */
1072 if (MSD(sle_phys + sg->length) ^ MSD(sle_phys)) {
1073 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe022,
1074 "%s: page boundary crossing (phys=%llx len=%x)\n",
1075 __func__, sle_phys, sg->length);
1076
1077 if (difctx) {
1078 ha->dif_bundle_crossed_pages++;
1079 dif_local_dma_alloc = true;
1080 } else {
1081 ql_dbg(ql_dbg_tgt + ql_dbg_verbose,
1082 vha, 0xe022,
1083 "%s: difctx pointer is NULL\n",
1084 __func__);
1085 }
1086 break;
1087 }
1088 }
1089 ha->dif_bundle_writes++;
1090 } else {
1091 ha->dif_bundle_reads++;
1092 }
1093
1094 if (ql2xdifbundlinginternalbuffers)
1095 dif_local_dma_alloc = direction_to_device;
1096
1097 if (dif_local_dma_alloc) {
1098 u32 track_difbundl_buf = 0;
1099 u32 ldma_sg_len = 0;
1100 u8 ldma_needed = 1;
1101
1102 difctx->no_dif_bundl = 0;
1103 difctx->dif_bundl_len = 0;
1104
1105 /* Track DSD buffers */
1106 INIT_LIST_HEAD(&difctx->ldif_dsd_list);
1107 /* Track local DMA buffers */
1108 INIT_LIST_HEAD(&difctx->ldif_dma_hndl_list);
1109
1110 for_each_sg(sgl, sg, tot_dsds, i) {
1111 u32 sglen = sg_dma_len(sg);
1112
1113 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe023,
1114 "%s: sg[%x] (phys=%llx sglen=%x) ldma_sg_len: %x dif_bundl_len: %x ldma_needed: %x\n",
1115 __func__, i, (u64)sg_phys(sg), sglen, ldma_sg_len,
1116 difctx->dif_bundl_len, ldma_needed);
1117
1118 while (sglen) {
1119 u32 xfrlen = 0;
1120
1121 if (ldma_needed) {
1122 /*
1123 * Allocate list item to store
1124 * the DMA buffers
1125 */
1126 dsd_ptr = kzalloc(sizeof(*dsd_ptr),
1127 GFP_ATOMIC);
1128 if (!dsd_ptr) {
1129 ql_dbg(ql_dbg_tgt, vha, 0xe024,
1130 "%s: failed alloc dsd_ptr\n",
1131 __func__);
1132 return 1;
1133 }
1134 ha->dif_bundle_kallocs++;
1135
1136 /* allocate dma buffer */
1137 dsd_ptr->dsd_addr = dma_pool_alloc
1138 (ha->dif_bundl_pool, GFP_ATOMIC,
1139 &dsd_ptr->dsd_list_dma);
1140 if (!dsd_ptr->dsd_addr) {
1141 ql_dbg(ql_dbg_tgt, vha, 0xe024,
1142 "%s: failed alloc ->dsd_ptr\n",
1143 __func__);
1144 /*
1145 * need to cleanup only this
1146 * dsd_ptr rest will be done
1147 * by sp_free_dma()
1148 */
1149 kfree(dsd_ptr);
1150 ha->dif_bundle_kallocs--;
1151 return 1;
1152 }
1153 ha->dif_bundle_dma_allocs++;
1154 ldma_needed = 0;
1155 difctx->no_dif_bundl++;
1156 list_add_tail(&dsd_ptr->list,
1157 &difctx->ldif_dma_hndl_list);
1158 }
1159
1160 /* xfrlen is min of dma pool size and sglen */
1161 xfrlen = (sglen >
1162 (DIF_BUNDLING_DMA_POOL_SIZE - ldma_sg_len)) ?
1163 DIF_BUNDLING_DMA_POOL_SIZE - ldma_sg_len :
1164 sglen;
1165
1166 /* replace with local allocated dma buffer */
1167 sg_pcopy_to_buffer(sgl, sg_nents(sgl),
1168 dsd_ptr->dsd_addr + ldma_sg_len, xfrlen,
1169 difctx->dif_bundl_len);
1170 difctx->dif_bundl_len += xfrlen;
1171 sglen -= xfrlen;
1172 ldma_sg_len += xfrlen;
1173 if (ldma_sg_len == DIF_BUNDLING_DMA_POOL_SIZE ||
1174 sg_is_last(sg)) {
1175 ldma_needed = 1;
1176 ldma_sg_len = 0;
1177 }
1178 }
1179 }
1180
1181 track_difbundl_buf = used_dsds = difctx->no_dif_bundl;
1182 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe025,
1183 "dif_bundl_len=%x, no_dif_bundl=%x track_difbundl_buf: %x\n",
1184 difctx->dif_bundl_len, difctx->no_dif_bundl,
1185 track_difbundl_buf);
1186
1187 if (sp)
1188 sp->flags |= SRB_DIF_BUNDL_DMA_VALID;
1189 else
1190 tc->prot_flags = DIF_BUNDL_DMA_VALID;
1191
1192 list_for_each_entry_safe(dif_dsd, nxt_dsd,
1193 &difctx->ldif_dma_hndl_list, list) {
1194 u32 sglen = (difctx->dif_bundl_len >
1195 DIF_BUNDLING_DMA_POOL_SIZE) ?
1196 DIF_BUNDLING_DMA_POOL_SIZE : difctx->dif_bundl_len;
1197
1198 BUG_ON(track_difbundl_buf == 0);
1199
1200 /* Allocate additional continuation packets? */
1201 if (avail_dsds == 0) {
1202 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha,
1203 0xe024,
1204 "%s: adding continuation iocb's\n",
1205 __func__);
1206 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ?
1207 QLA_DSDS_PER_IOCB : used_dsds;
1208 dsd_list_len = (avail_dsds + 1) * 12;
1209 used_dsds -= avail_dsds;
1210
1211 /* allocate tracking DS */
1212 dsd_ptr = kzalloc(sizeof(*dsd_ptr), GFP_ATOMIC);
1213 if (!dsd_ptr) {
1214 ql_dbg(ql_dbg_tgt, vha, 0xe026,
1215 "%s: failed alloc dsd_ptr\n",
1216 __func__);
1217 return 1;
1218 }
1219 ha->dif_bundle_kallocs++;
1220
1221 difctx->no_ldif_dsd++;
1222 /* allocate new list */
1223 dsd_ptr->dsd_addr =
1224 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
1225 &dsd_ptr->dsd_list_dma);
1226 if (!dsd_ptr->dsd_addr) {
1227 ql_dbg(ql_dbg_tgt, vha, 0xe026,
1228 "%s: failed alloc ->dsd_addr\n",
1229 __func__);
1230 /*
1231 * need to cleanup only this dsd_ptr
1232 * rest will be done by sp_free_dma()
1233 */
1234 kfree(dsd_ptr);
1235 ha->dif_bundle_kallocs--;
1236 return 1;
1237 }
1238 ha->dif_bundle_dma_allocs++;
1239
1240 if (sp) {
1241 list_add_tail(&dsd_ptr->list,
1242 &difctx->ldif_dsd_list);
1243 sp->flags |= SRB_CRC_CTX_DSD_VALID;
1244 } else {
1245 list_add_tail(&dsd_ptr->list,
1246 &difctx->ldif_dsd_list);
1247 tc->ctx_dsd_alloced = 1;
1248 }
1249
1250 /* add new list to cmd iocb or last list */
1251 put_unaligned_le64(dsd_ptr->dsd_list_dma,
1252 &cur_dsd->address);
1253 cur_dsd->length = cpu_to_le32(dsd_list_len);
1254 cur_dsd = dsd_ptr->dsd_addr;
1255 }
1256 put_unaligned_le64(dif_dsd->dsd_list_dma,
1257 &cur_dsd->address);
1258 cur_dsd->length = cpu_to_le32(sglen);
1259 cur_dsd++;
1260 avail_dsds--;
1261 difctx->dif_bundl_len -= sglen;
1262 track_difbundl_buf--;
1263 }
1264
1265 ql_dbg(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe026,
1266 "%s: no_ldif_dsd:%x, no_dif_bundl:%x\n", __func__,
1267 difctx->no_ldif_dsd, difctx->no_dif_bundl);
1268 } else {
1269 for_each_sg(sgl, sg, tot_dsds, i) {
1270 /* Allocate additional continuation packets? */
1271 if (avail_dsds == 0) {
1272 avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ?
1273 QLA_DSDS_PER_IOCB : used_dsds;
1274 dsd_list_len = (avail_dsds + 1) * 12;
1275 used_dsds -= avail_dsds;
1276
1277 /* allocate tracking DS */
1278 dsd_ptr = kzalloc(sizeof(*dsd_ptr), GFP_ATOMIC);
1279 if (!dsd_ptr) {
1280 ql_dbg(ql_dbg_tgt + ql_dbg_verbose,
1281 vha, 0xe027,
1282 "%s: failed alloc dsd_dma...\n",
1283 __func__);
1284 return 1;
1285 }
1286
1287 /* allocate new list */
1288 dsd_ptr->dsd_addr =
1289 dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
1290 &dsd_ptr->dsd_list_dma);
1291 if (!dsd_ptr->dsd_addr) {
1292 /* need to cleanup only this dsd_ptr */
1293 /* rest will be done by sp_free_dma() */
1294 kfree(dsd_ptr);
1295 return 1;
1296 }
1297
1298 if (sp) {
1299 list_add_tail(&dsd_ptr->list,
1300 &difctx->dsd_list);
1301 sp->flags |= SRB_CRC_CTX_DSD_VALID;
1302 } else {
1303 list_add_tail(&dsd_ptr->list,
1304 &difctx->dsd_list);
1305 tc->ctx_dsd_alloced = 1;
1306 }
1307
1308 /* add new list to cmd iocb or last list */
1309 put_unaligned_le64(dsd_ptr->dsd_list_dma,
1310 &cur_dsd->address);
1311 cur_dsd->length = cpu_to_le32(dsd_list_len);
1312 cur_dsd = dsd_ptr->dsd_addr;
1313 }
1314 append_dsd64(&cur_dsd, sg);
1315 avail_dsds--;
1316 }
1317 }
1318 /* Null termination */
1319 cur_dsd->address = 0;
1320 cur_dsd->length = 0;
1321 cur_dsd++;
1322 return 0;
1323 }
1324
1325 /**
1326 * qla24xx_build_scsi_crc_2_iocbs() - Build IOCB command utilizing Command
1327 * Type 6 IOCB types.
1328 *
1329 * @sp: SRB command to process
1330 * @cmd_pkt: Command type 3 IOCB
1331 * @tot_dsds: Total number of segments to transfer
1332 * @tot_prot_dsds: Total number of segments with protection information
1333 * @fw_prot_opts: Protection options to be passed to firmware
1334 */
1335 static inline int
qla24xx_build_scsi_crc_2_iocbs(srb_t * sp,struct cmd_type_crc_2 * cmd_pkt,uint16_t tot_dsds,uint16_t tot_prot_dsds,uint16_t fw_prot_opts)1336 qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt,
1337 uint16_t tot_dsds, uint16_t tot_prot_dsds, uint16_t fw_prot_opts)
1338 {
1339 struct dsd64 *cur_dsd;
1340 __be32 *fcp_dl;
1341 scsi_qla_host_t *vha;
1342 struct scsi_cmnd *cmd;
1343 uint32_t total_bytes = 0;
1344 uint32_t data_bytes;
1345 uint32_t dif_bytes;
1346 uint8_t bundling = 1;
1347 uint16_t blk_size;
1348 struct crc_context *crc_ctx_pkt = NULL;
1349 struct qla_hw_data *ha;
1350 uint8_t additional_fcpcdb_len;
1351 uint16_t fcp_cmnd_len;
1352 struct fcp_cmnd *fcp_cmnd;
1353 dma_addr_t crc_ctx_dma;
1354
1355 cmd = GET_CMD_SP(sp);
1356
1357 /* Update entry type to indicate Command Type CRC_2 IOCB */
1358 put_unaligned_le32(COMMAND_TYPE_CRC_2, &cmd_pkt->entry_type);
1359
1360 vha = sp->vha;
1361 ha = vha->hw;
1362
1363 /* No data transfer */
1364 data_bytes = scsi_bufflen(cmd);
1365 if (!data_bytes || cmd->sc_data_direction == DMA_NONE) {
1366 cmd_pkt->byte_count = cpu_to_le32(0);
1367 return QLA_SUCCESS;
1368 }
1369
1370 cmd_pkt->vp_index = sp->vha->vp_idx;
1371
1372 /* Set transfer direction */
1373 if (cmd->sc_data_direction == DMA_TO_DEVICE) {
1374 cmd_pkt->control_flags =
1375 cpu_to_le16(CF_WRITE_DATA);
1376 } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
1377 cmd_pkt->control_flags =
1378 cpu_to_le16(CF_READ_DATA);
1379 }
1380
1381 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
1382 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP) ||
1383 (scsi_get_prot_op(cmd) == SCSI_PROT_READ_STRIP) ||
1384 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_INSERT))
1385 bundling = 0;
1386
1387 /* Allocate CRC context from global pool */
1388 crc_ctx_pkt = sp->u.scmd.crc_ctx =
1389 dma_pool_zalloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma);
1390
1391 if (!crc_ctx_pkt)
1392 goto crc_queuing_error;
1393
1394 crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma;
1395
1396 sp->flags |= SRB_CRC_CTX_DMA_VALID;
1397
1398 /* Set handle */
1399 crc_ctx_pkt->handle = cmd_pkt->handle;
1400
1401 INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list);
1402
1403 qla24xx_set_t10dif_tags(sp, (struct fw_dif_context *)
1404 &crc_ctx_pkt->ref_tag, tot_prot_dsds);
1405
1406 put_unaligned_le64(crc_ctx_dma, &cmd_pkt->crc_context_address);
1407 cmd_pkt->crc_context_len = cpu_to_le16(CRC_CONTEXT_LEN_FW);
1408
1409 /* Determine SCSI command length -- align to 4 byte boundary */
1410 if (cmd->cmd_len > 16) {
1411 additional_fcpcdb_len = cmd->cmd_len - 16;
1412 if ((cmd->cmd_len % 4) != 0) {
1413 /* SCSI cmd > 16 bytes must be multiple of 4 */
1414 goto crc_queuing_error;
1415 }
1416 fcp_cmnd_len = 12 + cmd->cmd_len + 4;
1417 } else {
1418 additional_fcpcdb_len = 0;
1419 fcp_cmnd_len = 12 + 16 + 4;
1420 }
1421
1422 fcp_cmnd = &crc_ctx_pkt->fcp_cmnd;
1423
1424 fcp_cmnd->additional_cdb_len = additional_fcpcdb_len;
1425 if (cmd->sc_data_direction == DMA_TO_DEVICE)
1426 fcp_cmnd->additional_cdb_len |= 1;
1427 else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
1428 fcp_cmnd->additional_cdb_len |= 2;
1429
1430 int_to_scsilun(cmd->device->lun, &fcp_cmnd->lun);
1431 memcpy(fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len);
1432 cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(fcp_cmnd_len);
1433 put_unaligned_le64(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF,
1434 &cmd_pkt->fcp_cmnd_dseg_address);
1435 fcp_cmnd->task_management = 0;
1436 fcp_cmnd->task_attribute = TSK_SIMPLE;
1437
1438 cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */
1439
1440 /* Compute dif len and adjust data len to incude protection */
1441 dif_bytes = 0;
1442 blk_size = cmd->device->sector_size;
1443 dif_bytes = (data_bytes / blk_size) * 8;
1444
1445 switch (scsi_get_prot_op(GET_CMD_SP(sp))) {
1446 case SCSI_PROT_READ_INSERT:
1447 case SCSI_PROT_WRITE_STRIP:
1448 total_bytes = data_bytes;
1449 data_bytes += dif_bytes;
1450 break;
1451
1452 case SCSI_PROT_READ_STRIP:
1453 case SCSI_PROT_WRITE_INSERT:
1454 case SCSI_PROT_READ_PASS:
1455 case SCSI_PROT_WRITE_PASS:
1456 total_bytes = data_bytes + dif_bytes;
1457 break;
1458 default:
1459 BUG();
1460 }
1461
1462 if (!qla2x00_hba_err_chk_enabled(sp))
1463 fw_prot_opts |= 0x10; /* Disable Guard tag checking */
1464 /* HBA error checking enabled */
1465 else if (IS_PI_UNINIT_CAPABLE(ha)) {
1466 if ((scsi_get_prot_type(GET_CMD_SP(sp)) == SCSI_PROT_DIF_TYPE1)
1467 || (scsi_get_prot_type(GET_CMD_SP(sp)) ==
1468 SCSI_PROT_DIF_TYPE2))
1469 fw_prot_opts |= BIT_10;
1470 else if (scsi_get_prot_type(GET_CMD_SP(sp)) ==
1471 SCSI_PROT_DIF_TYPE3)
1472 fw_prot_opts |= BIT_11;
1473 }
1474
1475 if (!bundling) {
1476 cur_dsd = &crc_ctx_pkt->u.nobundling.data_dsd[0];
1477 } else {
1478 /*
1479 * Configure Bundling if we need to fetch interlaving
1480 * protection PCI accesses
1481 */
1482 fw_prot_opts |= PO_ENABLE_DIF_BUNDLING;
1483 crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes);
1484 crc_ctx_pkt->u.bundling.dseg_count = cpu_to_le16(tot_dsds -
1485 tot_prot_dsds);
1486 cur_dsd = &crc_ctx_pkt->u.bundling.data_dsd[0];
1487 }
1488
1489 /* Finish the common fields of CRC pkt */
1490 crc_ctx_pkt->blk_size = cpu_to_le16(blk_size);
1491 crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts);
1492 crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes);
1493 crc_ctx_pkt->guard_seed = cpu_to_le16(0);
1494 /* Fibre channel byte count */
1495 cmd_pkt->byte_count = cpu_to_le32(total_bytes);
1496 fcp_dl = (__be32 *)(crc_ctx_pkt->fcp_cmnd.cdb + 16 +
1497 additional_fcpcdb_len);
1498 *fcp_dl = htonl(total_bytes);
1499
1500 if (!data_bytes || cmd->sc_data_direction == DMA_NONE) {
1501 cmd_pkt->byte_count = cpu_to_le32(0);
1502 return QLA_SUCCESS;
1503 }
1504 /* Walks data segments */
1505
1506 cmd_pkt->control_flags |= cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE);
1507
1508 if (!bundling && tot_prot_dsds) {
1509 if (qla24xx_walk_and_build_sglist_no_difb(ha, sp,
1510 cur_dsd, tot_dsds, NULL))
1511 goto crc_queuing_error;
1512 } else if (qla24xx_walk_and_build_sglist(ha, sp, cur_dsd,
1513 (tot_dsds - tot_prot_dsds), NULL))
1514 goto crc_queuing_error;
1515
1516 if (bundling && tot_prot_dsds) {
1517 /* Walks dif segments */
1518 cmd_pkt->control_flags |= cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE);
1519 cur_dsd = &crc_ctx_pkt->u.bundling.dif_dsd;
1520 if (qla24xx_walk_and_build_prot_sglist(ha, sp, cur_dsd,
1521 tot_prot_dsds, NULL))
1522 goto crc_queuing_error;
1523 }
1524 return QLA_SUCCESS;
1525
1526 crc_queuing_error:
1527 /* Cleanup will be performed by the caller */
1528
1529 return QLA_FUNCTION_FAILED;
1530 }
1531
1532 /**
1533 * qla24xx_start_scsi() - Send a SCSI command to the ISP
1534 * @sp: command to send to the ISP
1535 *
1536 * Returns non-zero if a failure occurred, else zero.
1537 */
1538 int
qla24xx_start_scsi(srb_t * sp)1539 qla24xx_start_scsi(srb_t *sp)
1540 {
1541 int nseg;
1542 unsigned long flags;
1543 uint32_t *clr_ptr;
1544 uint32_t handle;
1545 struct cmd_type_7 *cmd_pkt;
1546 uint16_t cnt;
1547 uint16_t req_cnt;
1548 uint16_t tot_dsds;
1549 struct req_que *req = NULL;
1550 struct rsp_que *rsp;
1551 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1552 struct scsi_qla_host *vha = sp->vha;
1553 struct qla_hw_data *ha = vha->hw;
1554
1555 if (sp->fcport->edif.enable && (sp->fcport->flags & FCF_FCSP_DEVICE))
1556 return qla28xx_start_scsi_edif(sp);
1557
1558 /* Setup device pointers. */
1559 req = vha->req;
1560 rsp = req->rsp;
1561
1562 /* So we know we haven't pci_map'ed anything yet */
1563 tot_dsds = 0;
1564
1565 /* Send marker if required */
1566 if (vha->marker_needed != 0) {
1567 if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) !=
1568 QLA_SUCCESS)
1569 return QLA_FUNCTION_FAILED;
1570 vha->marker_needed = 0;
1571 }
1572
1573 /* Acquire ring specific lock */
1574 spin_lock_irqsave(&ha->hardware_lock, flags);
1575
1576 handle = qla2xxx_get_next_handle(req);
1577 if (handle == 0)
1578 goto queuing_error;
1579
1580 /* Map the sg table so we have an accurate count of sg entries needed */
1581 if (scsi_sg_count(cmd)) {
1582 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
1583 scsi_sg_count(cmd), cmd->sc_data_direction);
1584 if (unlikely(!nseg))
1585 goto queuing_error;
1586 } else
1587 nseg = 0;
1588
1589 tot_dsds = nseg;
1590 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
1591
1592 sp->iores.res_type = RESOURCE_INI;
1593 sp->iores.iocb_cnt = req_cnt;
1594 if (qla_get_iocbs(sp->qpair, &sp->iores))
1595 goto queuing_error;
1596
1597 if (req->cnt < (req_cnt + 2)) {
1598 if (IS_SHADOW_REG_CAPABLE(ha)) {
1599 cnt = *req->out_ptr;
1600 } else {
1601 cnt = rd_reg_dword_relaxed(req->req_q_out);
1602 if (qla2x00_check_reg16_for_disconnect(vha, cnt))
1603 goto queuing_error;
1604 }
1605
1606 if (req->ring_index < cnt)
1607 req->cnt = cnt - req->ring_index;
1608 else
1609 req->cnt = req->length -
1610 (req->ring_index - cnt);
1611 if (req->cnt < (req_cnt + 2))
1612 goto queuing_error;
1613 }
1614
1615 /* Build command packet. */
1616 req->current_outstanding_cmd = handle;
1617 req->outstanding_cmds[handle] = sp;
1618 sp->handle = handle;
1619 cmd->host_scribble = (unsigned char *)(unsigned long)handle;
1620 req->cnt -= req_cnt;
1621
1622 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr;
1623 cmd_pkt->handle = make_handle(req->id, handle);
1624
1625 /* Zero out remaining portion of packet. */
1626 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */
1627 clr_ptr = (uint32_t *)cmd_pkt + 2;
1628 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
1629 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
1630
1631 /* Set NPORT-ID and LUN number*/
1632 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
1633 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
1634 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
1635 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
1636 cmd_pkt->vp_index = sp->vha->vp_idx;
1637
1638 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
1639 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
1640
1641 cmd_pkt->task = TSK_SIMPLE;
1642
1643 /* Load SCSI command packet. */
1644 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len);
1645 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb));
1646
1647 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
1648
1649 /* Build IOCB segments */
1650 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req);
1651
1652 /* Set total data segment count. */
1653 cmd_pkt->entry_count = (uint8_t)req_cnt;
1654 wmb();
1655 /* Adjust ring index. */
1656 req->ring_index++;
1657 if (req->ring_index == req->length) {
1658 req->ring_index = 0;
1659 req->ring_ptr = req->ring;
1660 } else
1661 req->ring_ptr++;
1662
1663 sp->qpair->cmd_cnt++;
1664 sp->flags |= SRB_DMA_VALID;
1665
1666 /* Set chip new ring index. */
1667 wrt_reg_dword(req->req_q_in, req->ring_index);
1668
1669 /* Manage unprocessed RIO/ZIO commands in response queue. */
1670 if (vha->flags.process_response_queue &&
1671 rsp->ring_ptr->signature != RESPONSE_PROCESSED)
1672 qla24xx_process_response_queue(vha, rsp);
1673
1674 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1675 return QLA_SUCCESS;
1676
1677 queuing_error:
1678 if (tot_dsds)
1679 scsi_dma_unmap(cmd);
1680
1681 qla_put_iocbs(sp->qpair, &sp->iores);
1682 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1683
1684 return QLA_FUNCTION_FAILED;
1685 }
1686
1687 /**
1688 * qla24xx_dif_start_scsi() - Send a SCSI command to the ISP
1689 * @sp: command to send to the ISP
1690 *
1691 * Returns non-zero if a failure occurred, else zero.
1692 */
1693 int
qla24xx_dif_start_scsi(srb_t * sp)1694 qla24xx_dif_start_scsi(srb_t *sp)
1695 {
1696 int nseg;
1697 unsigned long flags;
1698 uint32_t *clr_ptr;
1699 uint32_t handle;
1700 uint16_t cnt;
1701 uint16_t req_cnt = 0;
1702 uint16_t tot_dsds;
1703 uint16_t tot_prot_dsds;
1704 uint16_t fw_prot_opts = 0;
1705 struct req_que *req = NULL;
1706 struct rsp_que *rsp = NULL;
1707 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1708 struct scsi_qla_host *vha = sp->vha;
1709 struct qla_hw_data *ha = vha->hw;
1710 struct cmd_type_crc_2 *cmd_pkt;
1711 uint32_t status = 0;
1712
1713 #define QDSS_GOT_Q_SPACE BIT_0
1714
1715 /* Only process protection or >16 cdb in this routine */
1716 if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) {
1717 if (cmd->cmd_len <= 16)
1718 return qla24xx_start_scsi(sp);
1719 }
1720
1721 /* Setup device pointers. */
1722 req = vha->req;
1723 rsp = req->rsp;
1724
1725 /* So we know we haven't pci_map'ed anything yet */
1726 tot_dsds = 0;
1727
1728 /* Send marker if required */
1729 if (vha->marker_needed != 0) {
1730 if (qla2x00_marker(vha, ha->base_qpair, 0, 0, MK_SYNC_ALL) !=
1731 QLA_SUCCESS)
1732 return QLA_FUNCTION_FAILED;
1733 vha->marker_needed = 0;
1734 }
1735
1736 /* Acquire ring specific lock */
1737 spin_lock_irqsave(&ha->hardware_lock, flags);
1738
1739 handle = qla2xxx_get_next_handle(req);
1740 if (handle == 0)
1741 goto queuing_error;
1742
1743 /* Compute number of required data segments */
1744 /* Map the sg table so we have an accurate count of sg entries needed */
1745 if (scsi_sg_count(cmd)) {
1746 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
1747 scsi_sg_count(cmd), cmd->sc_data_direction);
1748 if (unlikely(!nseg))
1749 goto queuing_error;
1750 else
1751 sp->flags |= SRB_DMA_VALID;
1752
1753 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
1754 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) {
1755 struct qla2_sgx sgx;
1756 uint32_t partial;
1757
1758 memset(&sgx, 0, sizeof(struct qla2_sgx));
1759 sgx.tot_bytes = scsi_bufflen(cmd);
1760 sgx.cur_sg = scsi_sglist(cmd);
1761 sgx.sp = sp;
1762
1763 nseg = 0;
1764 while (qla24xx_get_one_block_sg(
1765 cmd->device->sector_size, &sgx, &partial))
1766 nseg++;
1767 }
1768 } else
1769 nseg = 0;
1770
1771 /* number of required data segments */
1772 tot_dsds = nseg;
1773
1774 /* Compute number of required protection segments */
1775 if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) {
1776 nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
1777 scsi_prot_sg_count(cmd), cmd->sc_data_direction);
1778 if (unlikely(!nseg))
1779 goto queuing_error;
1780 else
1781 sp->flags |= SRB_CRC_PROT_DMA_VALID;
1782
1783 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
1784 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) {
1785 nseg = scsi_bufflen(cmd) / cmd->device->sector_size;
1786 }
1787 } else {
1788 nseg = 0;
1789 }
1790
1791 req_cnt = 1;
1792 /* Total Data and protection sg segment(s) */
1793 tot_prot_dsds = nseg;
1794 tot_dsds += nseg;
1795
1796 sp->iores.res_type = RESOURCE_INI;
1797 sp->iores.iocb_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
1798 if (qla_get_iocbs(sp->qpair, &sp->iores))
1799 goto queuing_error;
1800
1801 if (req->cnt < (req_cnt + 2)) {
1802 if (IS_SHADOW_REG_CAPABLE(ha)) {
1803 cnt = *req->out_ptr;
1804 } else {
1805 cnt = rd_reg_dword_relaxed(req->req_q_out);
1806 if (qla2x00_check_reg16_for_disconnect(vha, cnt))
1807 goto queuing_error;
1808 }
1809 if (req->ring_index < cnt)
1810 req->cnt = cnt - req->ring_index;
1811 else
1812 req->cnt = req->length -
1813 (req->ring_index - cnt);
1814 if (req->cnt < (req_cnt + 2))
1815 goto queuing_error;
1816 }
1817
1818 status |= QDSS_GOT_Q_SPACE;
1819
1820 /* Build header part of command packet (excluding the OPCODE). */
1821 req->current_outstanding_cmd = handle;
1822 req->outstanding_cmds[handle] = sp;
1823 sp->handle = handle;
1824 cmd->host_scribble = (unsigned char *)(unsigned long)handle;
1825 req->cnt -= req_cnt;
1826
1827 /* Fill-in common area */
1828 cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr;
1829 cmd_pkt->handle = make_handle(req->id, handle);
1830
1831 clr_ptr = (uint32_t *)cmd_pkt + 2;
1832 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
1833
1834 /* Set NPORT-ID and LUN number*/
1835 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
1836 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
1837 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
1838 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
1839
1840 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
1841 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
1842
1843 /* Total Data and protection segment(s) */
1844 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
1845
1846 /* Build IOCB segments and adjust for data protection segments */
1847 if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *)
1848 req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) !=
1849 QLA_SUCCESS)
1850 goto queuing_error;
1851
1852 cmd_pkt->entry_count = (uint8_t)req_cnt;
1853 /* Specify response queue number where completion should happen */
1854 cmd_pkt->entry_status = (uint8_t) rsp->id;
1855 cmd_pkt->timeout = cpu_to_le16(0);
1856 wmb();
1857
1858 /* Adjust ring index. */
1859 req->ring_index++;
1860 if (req->ring_index == req->length) {
1861 req->ring_index = 0;
1862 req->ring_ptr = req->ring;
1863 } else
1864 req->ring_ptr++;
1865
1866 sp->qpair->cmd_cnt++;
1867 /* Set chip new ring index. */
1868 wrt_reg_dword(req->req_q_in, req->ring_index);
1869
1870 /* Manage unprocessed RIO/ZIO commands in response queue. */
1871 if (vha->flags.process_response_queue &&
1872 rsp->ring_ptr->signature != RESPONSE_PROCESSED)
1873 qla24xx_process_response_queue(vha, rsp);
1874
1875 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1876
1877 return QLA_SUCCESS;
1878
1879 queuing_error:
1880 if (status & QDSS_GOT_Q_SPACE) {
1881 req->outstanding_cmds[handle] = NULL;
1882 req->cnt += req_cnt;
1883 }
1884 /* Cleanup will be performed by the caller (queuecommand) */
1885
1886 qla_put_iocbs(sp->qpair, &sp->iores);
1887 spin_unlock_irqrestore(&ha->hardware_lock, flags);
1888
1889 return QLA_FUNCTION_FAILED;
1890 }
1891
1892 /**
1893 * qla2xxx_start_scsi_mq() - Send a SCSI command to the ISP
1894 * @sp: command to send to the ISP
1895 *
1896 * Returns non-zero if a failure occurred, else zero.
1897 */
1898 static int
qla2xxx_start_scsi_mq(srb_t * sp)1899 qla2xxx_start_scsi_mq(srb_t *sp)
1900 {
1901 int nseg;
1902 unsigned long flags;
1903 uint32_t *clr_ptr;
1904 uint32_t handle;
1905 struct cmd_type_7 *cmd_pkt;
1906 uint16_t cnt;
1907 uint16_t req_cnt;
1908 uint16_t tot_dsds;
1909 struct req_que *req = NULL;
1910 struct rsp_que *rsp;
1911 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
1912 struct scsi_qla_host *vha = sp->fcport->vha;
1913 struct qla_hw_data *ha = vha->hw;
1914 struct qla_qpair *qpair = sp->qpair;
1915
1916 if (sp->fcport->edif.enable && (sp->fcport->flags & FCF_FCSP_DEVICE))
1917 return qla28xx_start_scsi_edif(sp);
1918
1919 /* Acquire qpair specific lock */
1920 spin_lock_irqsave(&qpair->qp_lock, flags);
1921
1922 /* Setup qpair pointers */
1923 req = qpair->req;
1924 rsp = qpair->rsp;
1925
1926 /* So we know we haven't pci_map'ed anything yet */
1927 tot_dsds = 0;
1928
1929 /* Send marker if required */
1930 if (vha->marker_needed != 0) {
1931 if (__qla2x00_marker(vha, qpair, 0, 0, MK_SYNC_ALL) !=
1932 QLA_SUCCESS) {
1933 spin_unlock_irqrestore(&qpair->qp_lock, flags);
1934 return QLA_FUNCTION_FAILED;
1935 }
1936 vha->marker_needed = 0;
1937 }
1938
1939 handle = qla2xxx_get_next_handle(req);
1940 if (handle == 0)
1941 goto queuing_error;
1942
1943 /* Map the sg table so we have an accurate count of sg entries needed */
1944 if (scsi_sg_count(cmd)) {
1945 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
1946 scsi_sg_count(cmd), cmd->sc_data_direction);
1947 if (unlikely(!nseg))
1948 goto queuing_error;
1949 } else
1950 nseg = 0;
1951
1952 tot_dsds = nseg;
1953 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
1954
1955 sp->iores.res_type = RESOURCE_INI;
1956 sp->iores.iocb_cnt = req_cnt;
1957 if (qla_get_iocbs(sp->qpair, &sp->iores))
1958 goto queuing_error;
1959
1960 if (req->cnt < (req_cnt + 2)) {
1961 if (IS_SHADOW_REG_CAPABLE(ha)) {
1962 cnt = *req->out_ptr;
1963 } else {
1964 cnt = rd_reg_dword_relaxed(req->req_q_out);
1965 if (qla2x00_check_reg16_for_disconnect(vha, cnt))
1966 goto queuing_error;
1967 }
1968
1969 if (req->ring_index < cnt)
1970 req->cnt = cnt - req->ring_index;
1971 else
1972 req->cnt = req->length -
1973 (req->ring_index - cnt);
1974 if (req->cnt < (req_cnt + 2))
1975 goto queuing_error;
1976 }
1977
1978 /* Build command packet. */
1979 req->current_outstanding_cmd = handle;
1980 req->outstanding_cmds[handle] = sp;
1981 sp->handle = handle;
1982 cmd->host_scribble = (unsigned char *)(unsigned long)handle;
1983 req->cnt -= req_cnt;
1984
1985 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr;
1986 cmd_pkt->handle = make_handle(req->id, handle);
1987
1988 /* Zero out remaining portion of packet. */
1989 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */
1990 clr_ptr = (uint32_t *)cmd_pkt + 2;
1991 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
1992 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
1993
1994 /* Set NPORT-ID and LUN number*/
1995 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
1996 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
1997 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
1998 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
1999 cmd_pkt->vp_index = sp->fcport->vha->vp_idx;
2000
2001 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
2002 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
2003
2004 cmd_pkt->task = TSK_SIMPLE;
2005
2006 /* Load SCSI command packet. */
2007 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len);
2008 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb));
2009
2010 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
2011
2012 /* Build IOCB segments */
2013 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req);
2014
2015 /* Set total data segment count. */
2016 cmd_pkt->entry_count = (uint8_t)req_cnt;
2017 wmb();
2018 /* Adjust ring index. */
2019 req->ring_index++;
2020 if (req->ring_index == req->length) {
2021 req->ring_index = 0;
2022 req->ring_ptr = req->ring;
2023 } else
2024 req->ring_ptr++;
2025
2026 sp->qpair->cmd_cnt++;
2027 sp->flags |= SRB_DMA_VALID;
2028
2029 /* Set chip new ring index. */
2030 wrt_reg_dword(req->req_q_in, req->ring_index);
2031
2032 /* Manage unprocessed RIO/ZIO commands in response queue. */
2033 if (vha->flags.process_response_queue &&
2034 rsp->ring_ptr->signature != RESPONSE_PROCESSED)
2035 qla24xx_process_response_queue(vha, rsp);
2036
2037 spin_unlock_irqrestore(&qpair->qp_lock, flags);
2038 return QLA_SUCCESS;
2039
2040 queuing_error:
2041 if (tot_dsds)
2042 scsi_dma_unmap(cmd);
2043
2044 qla_put_iocbs(sp->qpair, &sp->iores);
2045 spin_unlock_irqrestore(&qpair->qp_lock, flags);
2046
2047 return QLA_FUNCTION_FAILED;
2048 }
2049
2050
2051 /**
2052 * qla2xxx_dif_start_scsi_mq() - Send a SCSI command to the ISP
2053 * @sp: command to send to the ISP
2054 *
2055 * Returns non-zero if a failure occurred, else zero.
2056 */
2057 int
qla2xxx_dif_start_scsi_mq(srb_t * sp)2058 qla2xxx_dif_start_scsi_mq(srb_t *sp)
2059 {
2060 int nseg;
2061 unsigned long flags;
2062 uint32_t *clr_ptr;
2063 uint32_t handle;
2064 uint16_t cnt;
2065 uint16_t req_cnt = 0;
2066 uint16_t tot_dsds;
2067 uint16_t tot_prot_dsds;
2068 uint16_t fw_prot_opts = 0;
2069 struct req_que *req = NULL;
2070 struct rsp_que *rsp = NULL;
2071 struct scsi_cmnd *cmd = GET_CMD_SP(sp);
2072 struct scsi_qla_host *vha = sp->fcport->vha;
2073 struct qla_hw_data *ha = vha->hw;
2074 struct cmd_type_crc_2 *cmd_pkt;
2075 uint32_t status = 0;
2076 struct qla_qpair *qpair = sp->qpair;
2077
2078 #define QDSS_GOT_Q_SPACE BIT_0
2079
2080 /* Check for host side state */
2081 if (!qpair->online) {
2082 cmd->result = DID_NO_CONNECT << 16;
2083 return QLA_INTERFACE_ERROR;
2084 }
2085
2086 if (!qpair->difdix_supported &&
2087 scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
2088 cmd->result = DID_NO_CONNECT << 16;
2089 return QLA_INTERFACE_ERROR;
2090 }
2091
2092 /* Only process protection or >16 cdb in this routine */
2093 if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) {
2094 if (cmd->cmd_len <= 16)
2095 return qla2xxx_start_scsi_mq(sp);
2096 }
2097
2098 spin_lock_irqsave(&qpair->qp_lock, flags);
2099
2100 /* Setup qpair pointers */
2101 rsp = qpair->rsp;
2102 req = qpair->req;
2103
2104 /* So we know we haven't pci_map'ed anything yet */
2105 tot_dsds = 0;
2106
2107 /* Send marker if required */
2108 if (vha->marker_needed != 0) {
2109 if (__qla2x00_marker(vha, qpair, 0, 0, MK_SYNC_ALL) !=
2110 QLA_SUCCESS) {
2111 spin_unlock_irqrestore(&qpair->qp_lock, flags);
2112 return QLA_FUNCTION_FAILED;
2113 }
2114 vha->marker_needed = 0;
2115 }
2116
2117 handle = qla2xxx_get_next_handle(req);
2118 if (handle == 0)
2119 goto queuing_error;
2120
2121 /* Compute number of required data segments */
2122 /* Map the sg table so we have an accurate count of sg entries needed */
2123 if (scsi_sg_count(cmd)) {
2124 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
2125 scsi_sg_count(cmd), cmd->sc_data_direction);
2126 if (unlikely(!nseg))
2127 goto queuing_error;
2128 else
2129 sp->flags |= SRB_DMA_VALID;
2130
2131 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
2132 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) {
2133 struct qla2_sgx sgx;
2134 uint32_t partial;
2135
2136 memset(&sgx, 0, sizeof(struct qla2_sgx));
2137 sgx.tot_bytes = scsi_bufflen(cmd);
2138 sgx.cur_sg = scsi_sglist(cmd);
2139 sgx.sp = sp;
2140
2141 nseg = 0;
2142 while (qla24xx_get_one_block_sg(
2143 cmd->device->sector_size, &sgx, &partial))
2144 nseg++;
2145 }
2146 } else
2147 nseg = 0;
2148
2149 /* number of required data segments */
2150 tot_dsds = nseg;
2151
2152 /* Compute number of required protection segments */
2153 if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) {
2154 nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
2155 scsi_prot_sg_count(cmd), cmd->sc_data_direction);
2156 if (unlikely(!nseg))
2157 goto queuing_error;
2158 else
2159 sp->flags |= SRB_CRC_PROT_DMA_VALID;
2160
2161 if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) ||
2162 (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) {
2163 nseg = scsi_bufflen(cmd) / cmd->device->sector_size;
2164 }
2165 } else {
2166 nseg = 0;
2167 }
2168
2169 req_cnt = 1;
2170 /* Total Data and protection sg segment(s) */
2171 tot_prot_dsds = nseg;
2172 tot_dsds += nseg;
2173
2174 sp->iores.res_type = RESOURCE_INI;
2175 sp->iores.iocb_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
2176 if (qla_get_iocbs(sp->qpair, &sp->iores))
2177 goto queuing_error;
2178
2179 if (req->cnt < (req_cnt + 2)) {
2180 if (IS_SHADOW_REG_CAPABLE(ha)) {
2181 cnt = *req->out_ptr;
2182 } else {
2183 cnt = rd_reg_dword_relaxed(req->req_q_out);
2184 if (qla2x00_check_reg16_for_disconnect(vha, cnt))
2185 goto queuing_error;
2186 }
2187
2188 if (req->ring_index < cnt)
2189 req->cnt = cnt - req->ring_index;
2190 else
2191 req->cnt = req->length -
2192 (req->ring_index - cnt);
2193 if (req->cnt < (req_cnt + 2))
2194 goto queuing_error;
2195 }
2196
2197 status |= QDSS_GOT_Q_SPACE;
2198
2199 /* Build header part of command packet (excluding the OPCODE). */
2200 req->current_outstanding_cmd = handle;
2201 req->outstanding_cmds[handle] = sp;
2202 sp->handle = handle;
2203 cmd->host_scribble = (unsigned char *)(unsigned long)handle;
2204 req->cnt -= req_cnt;
2205
2206 /* Fill-in common area */
2207 cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr;
2208 cmd_pkt->handle = make_handle(req->id, handle);
2209
2210 clr_ptr = (uint32_t *)cmd_pkt + 2;
2211 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
2212
2213 /* Set NPORT-ID and LUN number*/
2214 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2215 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
2216 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
2217 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
2218
2219 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
2220 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
2221
2222 /* Total Data and protection segment(s) */
2223 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
2224
2225 /* Build IOCB segments and adjust for data protection segments */
2226 if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *)
2227 req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) !=
2228 QLA_SUCCESS)
2229 goto queuing_error;
2230
2231 cmd_pkt->entry_count = (uint8_t)req_cnt;
2232 cmd_pkt->timeout = cpu_to_le16(0);
2233 wmb();
2234
2235 /* Adjust ring index. */
2236 req->ring_index++;
2237 if (req->ring_index == req->length) {
2238 req->ring_index = 0;
2239 req->ring_ptr = req->ring;
2240 } else
2241 req->ring_ptr++;
2242
2243 sp->qpair->cmd_cnt++;
2244 /* Set chip new ring index. */
2245 wrt_reg_dword(req->req_q_in, req->ring_index);
2246
2247 /* Manage unprocessed RIO/ZIO commands in response queue. */
2248 if (vha->flags.process_response_queue &&
2249 rsp->ring_ptr->signature != RESPONSE_PROCESSED)
2250 qla24xx_process_response_queue(vha, rsp);
2251
2252 spin_unlock_irqrestore(&qpair->qp_lock, flags);
2253
2254 return QLA_SUCCESS;
2255
2256 queuing_error:
2257 if (status & QDSS_GOT_Q_SPACE) {
2258 req->outstanding_cmds[handle] = NULL;
2259 req->cnt += req_cnt;
2260 }
2261 /* Cleanup will be performed by the caller (queuecommand) */
2262
2263 qla_put_iocbs(sp->qpair, &sp->iores);
2264 spin_unlock_irqrestore(&qpair->qp_lock, flags);
2265
2266 return QLA_FUNCTION_FAILED;
2267 }
2268
2269 /* Generic Control-SRB manipulation functions. */
2270
2271 /* hardware_lock assumed to be held. */
2272
2273 void *
__qla2x00_alloc_iocbs(struct qla_qpair * qpair,srb_t * sp)2274 __qla2x00_alloc_iocbs(struct qla_qpair *qpair, srb_t *sp)
2275 {
2276 scsi_qla_host_t *vha = qpair->vha;
2277 struct qla_hw_data *ha = vha->hw;
2278 struct req_que *req = qpair->req;
2279 device_reg_t *reg = ISP_QUE_REG(ha, req->id);
2280 uint32_t handle;
2281 request_t *pkt;
2282 uint16_t cnt, req_cnt;
2283
2284 pkt = NULL;
2285 req_cnt = 1;
2286 handle = 0;
2287
2288 if (sp && (sp->type != SRB_SCSI_CMD)) {
2289 /* Adjust entry-counts as needed. */
2290 req_cnt = sp->iocbs;
2291 }
2292
2293 /* Check for room on request queue. */
2294 if (req->cnt < req_cnt + 2) {
2295 if (qpair->use_shadow_reg)
2296 cnt = *req->out_ptr;
2297 else if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
2298 IS_QLA28XX(ha))
2299 cnt = rd_reg_dword(®->isp25mq.req_q_out);
2300 else if (IS_P3P_TYPE(ha))
2301 cnt = rd_reg_dword(reg->isp82.req_q_out);
2302 else if (IS_FWI2_CAPABLE(ha))
2303 cnt = rd_reg_dword(®->isp24.req_q_out);
2304 else if (IS_QLAFX00(ha))
2305 cnt = rd_reg_dword(®->ispfx00.req_q_out);
2306 else
2307 cnt = qla2x00_debounce_register(
2308 ISP_REQ_Q_OUT(ha, ®->isp));
2309
2310 if (!qpair->use_shadow_reg && cnt == ISP_REG16_DISCONNECT) {
2311 qla_schedule_eeh_work(vha);
2312 return NULL;
2313 }
2314
2315 if (req->ring_index < cnt)
2316 req->cnt = cnt - req->ring_index;
2317 else
2318 req->cnt = req->length -
2319 (req->ring_index - cnt);
2320 }
2321 if (req->cnt < req_cnt + 2)
2322 goto queuing_error;
2323
2324 if (sp) {
2325 handle = qla2xxx_get_next_handle(req);
2326 if (handle == 0) {
2327 ql_log(ql_log_warn, vha, 0x700b,
2328 "No room on outstanding cmd array.\n");
2329 goto queuing_error;
2330 }
2331
2332 /* Prep command array. */
2333 req->current_outstanding_cmd = handle;
2334 req->outstanding_cmds[handle] = sp;
2335 sp->handle = handle;
2336 }
2337
2338 /* Prep packet */
2339 req->cnt -= req_cnt;
2340 pkt = req->ring_ptr;
2341 memset(pkt, 0, REQUEST_ENTRY_SIZE);
2342 if (IS_QLAFX00(ha)) {
2343 wrt_reg_byte((u8 __force __iomem *)&pkt->entry_count, req_cnt);
2344 wrt_reg_dword((__le32 __force __iomem *)&pkt->handle, handle);
2345 } else {
2346 pkt->entry_count = req_cnt;
2347 pkt->handle = handle;
2348 }
2349
2350 return pkt;
2351
2352 queuing_error:
2353 qpair->tgt_counters.num_alloc_iocb_failed++;
2354 return pkt;
2355 }
2356
2357 void *
qla2x00_alloc_iocbs_ready(struct qla_qpair * qpair,srb_t * sp)2358 qla2x00_alloc_iocbs_ready(struct qla_qpair *qpair, srb_t *sp)
2359 {
2360 scsi_qla_host_t *vha = qpair->vha;
2361
2362 if (qla2x00_reset_active(vha))
2363 return NULL;
2364
2365 return __qla2x00_alloc_iocbs(qpair, sp);
2366 }
2367
2368 void *
qla2x00_alloc_iocbs(struct scsi_qla_host * vha,srb_t * sp)2369 qla2x00_alloc_iocbs(struct scsi_qla_host *vha, srb_t *sp)
2370 {
2371 return __qla2x00_alloc_iocbs(vha->hw->base_qpair, sp);
2372 }
2373
2374 static void
qla24xx_prli_iocb(srb_t * sp,struct logio_entry_24xx * logio)2375 qla24xx_prli_iocb(srb_t *sp, struct logio_entry_24xx *logio)
2376 {
2377 struct srb_iocb *lio = &sp->u.iocb_cmd;
2378
2379 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
2380 logio->control_flags = cpu_to_le16(LCF_COMMAND_PRLI);
2381 if (lio->u.logio.flags & SRB_LOGIN_NVME_PRLI) {
2382 logio->control_flags |= cpu_to_le16(LCF_NVME_PRLI);
2383 if (sp->vha->flags.nvme_first_burst)
2384 logio->io_parameter[0] =
2385 cpu_to_le32(NVME_PRLI_SP_FIRST_BURST);
2386 if (sp->vha->flags.nvme2_enabled) {
2387 /* Set service parameter BIT_7 for NVME CONF support */
2388 logio->io_parameter[0] |=
2389 cpu_to_le32(NVME_PRLI_SP_CONF);
2390 /* Set service parameter BIT_8 for SLER support */
2391 logio->io_parameter[0] |=
2392 cpu_to_le32(NVME_PRLI_SP_SLER);
2393 /* Set service parameter BIT_9 for PI control support */
2394 logio->io_parameter[0] |=
2395 cpu_to_le32(NVME_PRLI_SP_PI_CTRL);
2396 }
2397 }
2398
2399 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2400 logio->port_id[0] = sp->fcport->d_id.b.al_pa;
2401 logio->port_id[1] = sp->fcport->d_id.b.area;
2402 logio->port_id[2] = sp->fcport->d_id.b.domain;
2403 logio->vp_index = sp->vha->vp_idx;
2404 }
2405
2406 static void
qla24xx_login_iocb(srb_t * sp,struct logio_entry_24xx * logio)2407 qla24xx_login_iocb(srb_t *sp, struct logio_entry_24xx *logio)
2408 {
2409 struct srb_iocb *lio = &sp->u.iocb_cmd;
2410
2411 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
2412 logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI);
2413
2414 if (lio->u.logio.flags & SRB_LOGIN_PRLI_ONLY) {
2415 logio->control_flags = cpu_to_le16(LCF_COMMAND_PRLI);
2416 } else {
2417 logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI);
2418 if (lio->u.logio.flags & SRB_LOGIN_COND_PLOGI)
2419 logio->control_flags |= cpu_to_le16(LCF_COND_PLOGI);
2420 if (lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI)
2421 logio->control_flags |= cpu_to_le16(LCF_SKIP_PRLI);
2422 if (lio->u.logio.flags & SRB_LOGIN_FCSP) {
2423 logio->control_flags |=
2424 cpu_to_le16(LCF_COMMON_FEAT | LCF_SKIP_PRLI);
2425 logio->io_parameter[0] =
2426 cpu_to_le32(LIO_COMM_FEAT_FCSP | LIO_COMM_FEAT_CIO);
2427 }
2428 }
2429 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2430 logio->port_id[0] = sp->fcport->d_id.b.al_pa;
2431 logio->port_id[1] = sp->fcport->d_id.b.area;
2432 logio->port_id[2] = sp->fcport->d_id.b.domain;
2433 logio->vp_index = sp->vha->vp_idx;
2434 }
2435
2436 static void
qla2x00_login_iocb(srb_t * sp,struct mbx_entry * mbx)2437 qla2x00_login_iocb(srb_t *sp, struct mbx_entry *mbx)
2438 {
2439 struct qla_hw_data *ha = sp->vha->hw;
2440 struct srb_iocb *lio = &sp->u.iocb_cmd;
2441 uint16_t opts;
2442
2443 mbx->entry_type = MBX_IOCB_TYPE;
2444 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id);
2445 mbx->mb0 = cpu_to_le16(MBC_LOGIN_FABRIC_PORT);
2446 opts = lio->u.logio.flags & SRB_LOGIN_COND_PLOGI ? BIT_0 : 0;
2447 opts |= lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI ? BIT_1 : 0;
2448 if (HAS_EXTENDED_IDS(ha)) {
2449 mbx->mb1 = cpu_to_le16(sp->fcport->loop_id);
2450 mbx->mb10 = cpu_to_le16(opts);
2451 } else {
2452 mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | opts);
2453 }
2454 mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain);
2455 mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 |
2456 sp->fcport->d_id.b.al_pa);
2457 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx);
2458 }
2459
2460 static void
qla24xx_logout_iocb(srb_t * sp,struct logio_entry_24xx * logio)2461 qla24xx_logout_iocb(srb_t *sp, struct logio_entry_24xx *logio)
2462 {
2463 u16 control_flags = LCF_COMMAND_LOGO;
2464 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
2465
2466 if (sp->fcport->explicit_logout) {
2467 control_flags |= LCF_EXPL_LOGO|LCF_FREE_NPORT;
2468 } else {
2469 control_flags |= LCF_IMPL_LOGO;
2470
2471 if (!sp->fcport->keep_nport_handle)
2472 control_flags |= LCF_FREE_NPORT;
2473 }
2474
2475 logio->control_flags = cpu_to_le16(control_flags);
2476 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2477 logio->port_id[0] = sp->fcport->d_id.b.al_pa;
2478 logio->port_id[1] = sp->fcport->d_id.b.area;
2479 logio->port_id[2] = sp->fcport->d_id.b.domain;
2480 logio->vp_index = sp->vha->vp_idx;
2481 }
2482
2483 static void
qla2x00_logout_iocb(srb_t * sp,struct mbx_entry * mbx)2484 qla2x00_logout_iocb(srb_t *sp, struct mbx_entry *mbx)
2485 {
2486 struct qla_hw_data *ha = sp->vha->hw;
2487
2488 mbx->entry_type = MBX_IOCB_TYPE;
2489 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id);
2490 mbx->mb0 = cpu_to_le16(MBC_LOGOUT_FABRIC_PORT);
2491 mbx->mb1 = HAS_EXTENDED_IDS(ha) ?
2492 cpu_to_le16(sp->fcport->loop_id) :
2493 cpu_to_le16(sp->fcport->loop_id << 8);
2494 mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain);
2495 mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 |
2496 sp->fcport->d_id.b.al_pa);
2497 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx);
2498 /* Implicit: mbx->mbx10 = 0. */
2499 }
2500
2501 static void
qla24xx_adisc_iocb(srb_t * sp,struct logio_entry_24xx * logio)2502 qla24xx_adisc_iocb(srb_t *sp, struct logio_entry_24xx *logio)
2503 {
2504 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
2505 logio->control_flags = cpu_to_le16(LCF_COMMAND_ADISC);
2506 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2507 logio->vp_index = sp->vha->vp_idx;
2508 }
2509
2510 static void
qla2x00_adisc_iocb(srb_t * sp,struct mbx_entry * mbx)2511 qla2x00_adisc_iocb(srb_t *sp, struct mbx_entry *mbx)
2512 {
2513 struct qla_hw_data *ha = sp->vha->hw;
2514
2515 mbx->entry_type = MBX_IOCB_TYPE;
2516 SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id);
2517 mbx->mb0 = cpu_to_le16(MBC_GET_PORT_DATABASE);
2518 if (HAS_EXTENDED_IDS(ha)) {
2519 mbx->mb1 = cpu_to_le16(sp->fcport->loop_id);
2520 mbx->mb10 = cpu_to_le16(BIT_0);
2521 } else {
2522 mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | BIT_0);
2523 }
2524 mbx->mb2 = cpu_to_le16(MSW(ha->async_pd_dma));
2525 mbx->mb3 = cpu_to_le16(LSW(ha->async_pd_dma));
2526 mbx->mb6 = cpu_to_le16(MSW(MSD(ha->async_pd_dma)));
2527 mbx->mb7 = cpu_to_le16(LSW(MSD(ha->async_pd_dma)));
2528 mbx->mb9 = cpu_to_le16(sp->vha->vp_idx);
2529 }
2530
2531 static void
qla24xx_tm_iocb(srb_t * sp,struct tsk_mgmt_entry * tsk)2532 qla24xx_tm_iocb(srb_t *sp, struct tsk_mgmt_entry *tsk)
2533 {
2534 uint32_t flags;
2535 uint64_t lun;
2536 struct fc_port *fcport = sp->fcport;
2537 scsi_qla_host_t *vha = fcport->vha;
2538 struct qla_hw_data *ha = vha->hw;
2539 struct srb_iocb *iocb = &sp->u.iocb_cmd;
2540 struct req_que *req = vha->req;
2541
2542 flags = iocb->u.tmf.flags;
2543 lun = iocb->u.tmf.lun;
2544
2545 tsk->entry_type = TSK_MGMT_IOCB_TYPE;
2546 tsk->entry_count = 1;
2547 tsk->handle = make_handle(req->id, tsk->handle);
2548 tsk->nport_handle = cpu_to_le16(fcport->loop_id);
2549 tsk->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2);
2550 tsk->control_flags = cpu_to_le32(flags);
2551 tsk->port_id[0] = fcport->d_id.b.al_pa;
2552 tsk->port_id[1] = fcport->d_id.b.area;
2553 tsk->port_id[2] = fcport->d_id.b.domain;
2554 tsk->vp_index = fcport->vha->vp_idx;
2555
2556 if (flags == TCF_LUN_RESET) {
2557 int_to_scsilun(lun, &tsk->lun);
2558 host_to_fcp_swap((uint8_t *)&tsk->lun,
2559 sizeof(tsk->lun));
2560 }
2561 }
2562
2563 static void
qla2x00_async_done(struct srb * sp,int res)2564 qla2x00_async_done(struct srb *sp, int res)
2565 {
2566 if (del_timer(&sp->u.iocb_cmd.timer)) {
2567 /*
2568 * Successfully cancelled the timeout handler
2569 * ref: TMR
2570 */
2571 if (kref_put(&sp->cmd_kref, qla2x00_sp_release))
2572 return;
2573 }
2574 sp->async_done(sp, res);
2575 }
2576
2577 void
qla2x00_sp_release(struct kref * kref)2578 qla2x00_sp_release(struct kref *kref)
2579 {
2580 struct srb *sp = container_of(kref, struct srb, cmd_kref);
2581
2582 sp->free(sp);
2583 }
2584
2585 void
qla2x00_init_async_sp(srb_t * sp,unsigned long tmo,void (* done)(struct srb * sp,int res))2586 qla2x00_init_async_sp(srb_t *sp, unsigned long tmo,
2587 void (*done)(struct srb *sp, int res))
2588 {
2589 timer_setup(&sp->u.iocb_cmd.timer, qla2x00_sp_timeout, 0);
2590 sp->done = qla2x00_async_done;
2591 sp->async_done = done;
2592 sp->free = qla2x00_sp_free;
2593 sp->u.iocb_cmd.timeout = qla2x00_async_iocb_timeout;
2594 sp->u.iocb_cmd.timer.expires = jiffies + tmo * HZ;
2595 if (IS_QLAFX00(sp->vha->hw) && sp->type == SRB_FXIOCB_DCMD)
2596 init_completion(&sp->u.iocb_cmd.u.fxiocb.fxiocb_comp);
2597 sp->start_timer = 1;
2598 }
2599
qla2x00_els_dcmd_sp_free(srb_t * sp)2600 static void qla2x00_els_dcmd_sp_free(srb_t *sp)
2601 {
2602 struct srb_iocb *elsio = &sp->u.iocb_cmd;
2603
2604 kfree(sp->fcport);
2605
2606 if (elsio->u.els_logo.els_logo_pyld)
2607 dma_free_coherent(&sp->vha->hw->pdev->dev, DMA_POOL_SIZE,
2608 elsio->u.els_logo.els_logo_pyld,
2609 elsio->u.els_logo.els_logo_pyld_dma);
2610
2611 del_timer(&elsio->timer);
2612 qla2x00_rel_sp(sp);
2613 }
2614
2615 static void
qla2x00_els_dcmd_iocb_timeout(void * data)2616 qla2x00_els_dcmd_iocb_timeout(void *data)
2617 {
2618 srb_t *sp = data;
2619 fc_port_t *fcport = sp->fcport;
2620 struct scsi_qla_host *vha = sp->vha;
2621 struct srb_iocb *lio = &sp->u.iocb_cmd;
2622 unsigned long flags = 0;
2623 int res, h;
2624
2625 ql_dbg(ql_dbg_io, vha, 0x3069,
2626 "%s Timeout, hdl=%x, portid=%02x%02x%02x\n",
2627 sp->name, sp->handle, fcport->d_id.b.domain, fcport->d_id.b.area,
2628 fcport->d_id.b.al_pa);
2629
2630 /* Abort the exchange */
2631 res = qla24xx_async_abort_cmd(sp, false);
2632 if (res) {
2633 ql_dbg(ql_dbg_io, vha, 0x3070,
2634 "mbx abort_command failed.\n");
2635 spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags);
2636 for (h = 1; h < sp->qpair->req->num_outstanding_cmds; h++) {
2637 if (sp->qpair->req->outstanding_cmds[h] == sp) {
2638 sp->qpair->req->outstanding_cmds[h] = NULL;
2639 break;
2640 }
2641 }
2642 spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags);
2643 complete(&lio->u.els_logo.comp);
2644 } else {
2645 ql_dbg(ql_dbg_io, vha, 0x3071,
2646 "mbx abort_command success.\n");
2647 }
2648 }
2649
qla2x00_els_dcmd_sp_done(srb_t * sp,int res)2650 static void qla2x00_els_dcmd_sp_done(srb_t *sp, int res)
2651 {
2652 fc_port_t *fcport = sp->fcport;
2653 struct srb_iocb *lio = &sp->u.iocb_cmd;
2654 struct scsi_qla_host *vha = sp->vha;
2655
2656 ql_dbg(ql_dbg_io, vha, 0x3072,
2657 "%s hdl=%x, portid=%02x%02x%02x done\n",
2658 sp->name, sp->handle, fcport->d_id.b.domain,
2659 fcport->d_id.b.area, fcport->d_id.b.al_pa);
2660
2661 complete(&lio->u.els_logo.comp);
2662 }
2663
2664 int
qla24xx_els_dcmd_iocb(scsi_qla_host_t * vha,int els_opcode,port_id_t remote_did)2665 qla24xx_els_dcmd_iocb(scsi_qla_host_t *vha, int els_opcode,
2666 port_id_t remote_did)
2667 {
2668 srb_t *sp;
2669 fc_port_t *fcport = NULL;
2670 struct srb_iocb *elsio = NULL;
2671 struct qla_hw_data *ha = vha->hw;
2672 struct els_logo_payload logo_pyld;
2673 int rval = QLA_SUCCESS;
2674
2675 fcport = qla2x00_alloc_fcport(vha, GFP_KERNEL);
2676 if (!fcport) {
2677 ql_log(ql_log_info, vha, 0x70e5, "fcport allocation failed\n");
2678 return -ENOMEM;
2679 }
2680
2681 /* Alloc SRB structure
2682 * ref: INIT
2683 */
2684 sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
2685 if (!sp) {
2686 kfree(fcport);
2687 ql_log(ql_log_info, vha, 0x70e6,
2688 "SRB allocation failed\n");
2689 return -ENOMEM;
2690 }
2691
2692 elsio = &sp->u.iocb_cmd;
2693 fcport->loop_id = 0xFFFF;
2694 fcport->d_id.b.domain = remote_did.b.domain;
2695 fcport->d_id.b.area = remote_did.b.area;
2696 fcport->d_id.b.al_pa = remote_did.b.al_pa;
2697
2698 ql_dbg(ql_dbg_io, vha, 0x3073, "portid=%02x%02x%02x done\n",
2699 fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa);
2700
2701 sp->type = SRB_ELS_DCMD;
2702 sp->name = "ELS_DCMD";
2703 sp->fcport = fcport;
2704 qla2x00_init_async_sp(sp, ELS_DCMD_TIMEOUT,
2705 qla2x00_els_dcmd_sp_done);
2706 sp->free = qla2x00_els_dcmd_sp_free;
2707 sp->u.iocb_cmd.timeout = qla2x00_els_dcmd_iocb_timeout;
2708 init_completion(&sp->u.iocb_cmd.u.els_logo.comp);
2709
2710 elsio->u.els_logo.els_logo_pyld = dma_alloc_coherent(&ha->pdev->dev,
2711 DMA_POOL_SIZE, &elsio->u.els_logo.els_logo_pyld_dma,
2712 GFP_KERNEL);
2713
2714 if (!elsio->u.els_logo.els_logo_pyld) {
2715 /* ref: INIT */
2716 kref_put(&sp->cmd_kref, qla2x00_sp_release);
2717 return QLA_FUNCTION_FAILED;
2718 }
2719
2720 memset(&logo_pyld, 0, sizeof(struct els_logo_payload));
2721
2722 elsio->u.els_logo.els_cmd = els_opcode;
2723 logo_pyld.opcode = els_opcode;
2724 logo_pyld.s_id[0] = vha->d_id.b.al_pa;
2725 logo_pyld.s_id[1] = vha->d_id.b.area;
2726 logo_pyld.s_id[2] = vha->d_id.b.domain;
2727 host_to_fcp_swap(logo_pyld.s_id, sizeof(uint32_t));
2728 memcpy(&logo_pyld.wwpn, vha->port_name, WWN_SIZE);
2729
2730 memcpy(elsio->u.els_logo.els_logo_pyld, &logo_pyld,
2731 sizeof(struct els_logo_payload));
2732 ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x3075, "LOGO buffer:");
2733 ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x010a,
2734 elsio->u.els_logo.els_logo_pyld,
2735 sizeof(*elsio->u.els_logo.els_logo_pyld));
2736
2737 rval = qla2x00_start_sp(sp);
2738 if (rval != QLA_SUCCESS) {
2739 /* ref: INIT */
2740 kref_put(&sp->cmd_kref, qla2x00_sp_release);
2741 return QLA_FUNCTION_FAILED;
2742 }
2743
2744 ql_dbg(ql_dbg_io, vha, 0x3074,
2745 "%s LOGO sent, hdl=%x, loopid=%x, portid=%02x%02x%02x.\n",
2746 sp->name, sp->handle, fcport->loop_id, fcport->d_id.b.domain,
2747 fcport->d_id.b.area, fcport->d_id.b.al_pa);
2748
2749 wait_for_completion(&elsio->u.els_logo.comp);
2750
2751 /* ref: INIT */
2752 kref_put(&sp->cmd_kref, qla2x00_sp_release);
2753 return rval;
2754 }
2755
2756 static void
qla24xx_els_logo_iocb(srb_t * sp,struct els_entry_24xx * els_iocb)2757 qla24xx_els_logo_iocb(srb_t *sp, struct els_entry_24xx *els_iocb)
2758 {
2759 scsi_qla_host_t *vha = sp->vha;
2760 struct srb_iocb *elsio = &sp->u.iocb_cmd;
2761
2762 els_iocb->entry_type = ELS_IOCB_TYPE;
2763 els_iocb->entry_count = 1;
2764 els_iocb->sys_define = 0;
2765 els_iocb->entry_status = 0;
2766 els_iocb->handle = sp->handle;
2767 els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
2768 els_iocb->tx_dsd_count = cpu_to_le16(1);
2769 els_iocb->vp_index = vha->vp_idx;
2770 els_iocb->sof_type = EST_SOFI3;
2771 els_iocb->rx_dsd_count = 0;
2772 els_iocb->opcode = elsio->u.els_logo.els_cmd;
2773
2774 els_iocb->d_id[0] = sp->fcport->d_id.b.al_pa;
2775 els_iocb->d_id[1] = sp->fcport->d_id.b.area;
2776 els_iocb->d_id[2] = sp->fcport->d_id.b.domain;
2777 /* For SID the byte order is different than DID */
2778 els_iocb->s_id[1] = vha->d_id.b.al_pa;
2779 els_iocb->s_id[2] = vha->d_id.b.area;
2780 els_iocb->s_id[0] = vha->d_id.b.domain;
2781
2782 if (elsio->u.els_logo.els_cmd == ELS_DCMD_PLOGI) {
2783 if (vha->hw->flags.edif_enabled)
2784 els_iocb->control_flags = cpu_to_le16(ECF_SEC_LOGIN);
2785 else
2786 els_iocb->control_flags = 0;
2787 els_iocb->tx_byte_count = els_iocb->tx_len =
2788 cpu_to_le32(sizeof(struct els_plogi_payload));
2789 put_unaligned_le64(elsio->u.els_plogi.els_plogi_pyld_dma,
2790 &els_iocb->tx_address);
2791 els_iocb->rx_dsd_count = cpu_to_le16(1);
2792 els_iocb->rx_byte_count = els_iocb->rx_len =
2793 cpu_to_le32(sizeof(struct els_plogi_payload));
2794 put_unaligned_le64(elsio->u.els_plogi.els_resp_pyld_dma,
2795 &els_iocb->rx_address);
2796
2797 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3073,
2798 "PLOGI ELS IOCB:\n");
2799 ql_dump_buffer(ql_log_info, vha, 0x0109,
2800 (uint8_t *)els_iocb,
2801 sizeof(*els_iocb));
2802 } else {
2803 els_iocb->tx_byte_count =
2804 cpu_to_le32(sizeof(struct els_logo_payload));
2805 put_unaligned_le64(elsio->u.els_logo.els_logo_pyld_dma,
2806 &els_iocb->tx_address);
2807 els_iocb->tx_len = cpu_to_le32(sizeof(struct els_logo_payload));
2808
2809 els_iocb->rx_byte_count = 0;
2810 els_iocb->rx_address = 0;
2811 els_iocb->rx_len = 0;
2812 ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x3076,
2813 "LOGO ELS IOCB:");
2814 ql_dump_buffer(ql_log_info, vha, 0x010b,
2815 els_iocb,
2816 sizeof(*els_iocb));
2817 }
2818
2819 sp->vha->qla_stats.control_requests++;
2820 }
2821
2822 void
qla2x00_els_dcmd2_iocb_timeout(void * data)2823 qla2x00_els_dcmd2_iocb_timeout(void *data)
2824 {
2825 srb_t *sp = data;
2826 fc_port_t *fcport = sp->fcport;
2827 struct scsi_qla_host *vha = sp->vha;
2828 unsigned long flags = 0;
2829 int res, h;
2830
2831 ql_dbg(ql_dbg_io + ql_dbg_disc, vha, 0x3069,
2832 "%s hdl=%x ELS Timeout, %8phC portid=%06x\n",
2833 sp->name, sp->handle, fcport->port_name, fcport->d_id.b24);
2834
2835 /* Abort the exchange */
2836 res = qla24xx_async_abort_cmd(sp, false);
2837 ql_dbg(ql_dbg_io, vha, 0x3070,
2838 "mbx abort_command %s\n",
2839 (res == QLA_SUCCESS) ? "successful" : "failed");
2840 if (res) {
2841 spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags);
2842 for (h = 1; h < sp->qpair->req->num_outstanding_cmds; h++) {
2843 if (sp->qpair->req->outstanding_cmds[h] == sp) {
2844 sp->qpair->req->outstanding_cmds[h] = NULL;
2845 break;
2846 }
2847 }
2848 spin_unlock_irqrestore(sp->qpair->qp_lock_ptr, flags);
2849 sp->done(sp, QLA_FUNCTION_TIMEOUT);
2850 }
2851 }
2852
qla2x00_els_dcmd2_free(scsi_qla_host_t * vha,struct els_plogi * els_plogi)2853 void qla2x00_els_dcmd2_free(scsi_qla_host_t *vha, struct els_plogi *els_plogi)
2854 {
2855 if (els_plogi->els_plogi_pyld)
2856 dma_free_coherent(&vha->hw->pdev->dev,
2857 els_plogi->tx_size,
2858 els_plogi->els_plogi_pyld,
2859 els_plogi->els_plogi_pyld_dma);
2860
2861 if (els_plogi->els_resp_pyld)
2862 dma_free_coherent(&vha->hw->pdev->dev,
2863 els_plogi->rx_size,
2864 els_plogi->els_resp_pyld,
2865 els_plogi->els_resp_pyld_dma);
2866 }
2867
qla2x00_els_dcmd2_sp_done(srb_t * sp,int res)2868 static void qla2x00_els_dcmd2_sp_done(srb_t *sp, int res)
2869 {
2870 fc_port_t *fcport = sp->fcport;
2871 struct srb_iocb *lio = &sp->u.iocb_cmd;
2872 struct scsi_qla_host *vha = sp->vha;
2873 struct event_arg ea;
2874 struct qla_work_evt *e;
2875 struct fc_port *conflict_fcport;
2876 port_id_t cid; /* conflict Nport id */
2877 const __le32 *fw_status = sp->u.iocb_cmd.u.els_plogi.fw_status;
2878 u16 lid;
2879
2880 ql_dbg(ql_dbg_disc, vha, 0x3072,
2881 "%s ELS done rc %d hdl=%x, portid=%06x %8phC\n",
2882 sp->name, res, sp->handle, fcport->d_id.b24, fcport->port_name);
2883
2884 fcport->flags &= ~(FCF_ASYNC_SENT|FCF_ASYNC_ACTIVE);
2885 /* For edif, set logout on delete to ensure any residual key from FW is flushed.*/
2886 fcport->logout_on_delete = 1;
2887 fcport->chip_reset = vha->hw->base_qpair->chip_reset;
2888
2889 if (sp->flags & SRB_WAKEUP_ON_COMP)
2890 complete(&lio->u.els_plogi.comp);
2891 else {
2892 switch (le32_to_cpu(fw_status[0])) {
2893 case CS_DATA_UNDERRUN:
2894 case CS_COMPLETE:
2895 memset(&ea, 0, sizeof(ea));
2896 ea.fcport = fcport;
2897 ea.rc = res;
2898 qla_handle_els_plogi_done(vha, &ea);
2899 break;
2900
2901 case CS_IOCB_ERROR:
2902 switch (le32_to_cpu(fw_status[1])) {
2903 case LSC_SCODE_PORTID_USED:
2904 lid = le32_to_cpu(fw_status[2]) & 0xffff;
2905 qlt_find_sess_invalidate_other(vha,
2906 wwn_to_u64(fcport->port_name),
2907 fcport->d_id, lid, &conflict_fcport);
2908 if (conflict_fcport) {
2909 /*
2910 * Another fcport shares the same
2911 * loop_id & nport id; conflict
2912 * fcport needs to finish cleanup
2913 * before this fcport can proceed
2914 * to login.
2915 */
2916 conflict_fcport->conflict = fcport;
2917 fcport->login_pause = 1;
2918 ql_dbg(ql_dbg_disc, vha, 0x20ed,
2919 "%s %d %8phC pid %06x inuse with lid %#x post gidpn\n",
2920 __func__, __LINE__,
2921 fcport->port_name,
2922 fcport->d_id.b24, lid);
2923 } else {
2924 ql_dbg(ql_dbg_disc, vha, 0x20ed,
2925 "%s %d %8phC pid %06x inuse with lid %#x sched del\n",
2926 __func__, __LINE__,
2927 fcport->port_name,
2928 fcport->d_id.b24, lid);
2929 qla2x00_clear_loop_id(fcport);
2930 set_bit(lid, vha->hw->loop_id_map);
2931 fcport->loop_id = lid;
2932 fcport->keep_nport_handle = 0;
2933 qlt_schedule_sess_for_deletion(fcport);
2934 }
2935 break;
2936
2937 case LSC_SCODE_NPORT_USED:
2938 cid.b.domain = (le32_to_cpu(fw_status[2]) >> 16)
2939 & 0xff;
2940 cid.b.area = (le32_to_cpu(fw_status[2]) >> 8)
2941 & 0xff;
2942 cid.b.al_pa = le32_to_cpu(fw_status[2]) & 0xff;
2943 cid.b.rsvd_1 = 0;
2944
2945 ql_dbg(ql_dbg_disc, vha, 0x20ec,
2946 "%s %d %8phC lid %#x in use with pid %06x post gnl\n",
2947 __func__, __LINE__, fcport->port_name,
2948 fcport->loop_id, cid.b24);
2949 set_bit(fcport->loop_id,
2950 vha->hw->loop_id_map);
2951 fcport->loop_id = FC_NO_LOOP_ID;
2952 qla24xx_post_gnl_work(vha, fcport);
2953 break;
2954
2955 case LSC_SCODE_NOXCB:
2956 vha->hw->exch_starvation++;
2957 if (vha->hw->exch_starvation > 5) {
2958 ql_log(ql_log_warn, vha, 0xd046,
2959 "Exchange starvation. Resetting RISC\n");
2960 vha->hw->exch_starvation = 0;
2961 set_bit(ISP_ABORT_NEEDED,
2962 &vha->dpc_flags);
2963 qla2xxx_wake_dpc(vha);
2964 break;
2965 }
2966 fallthrough;
2967 default:
2968 ql_dbg(ql_dbg_disc, vha, 0x20eb,
2969 "%s %8phC cmd error fw_status 0x%x 0x%x 0x%x\n",
2970 __func__, sp->fcport->port_name,
2971 fw_status[0], fw_status[1], fw_status[2]);
2972
2973 fcport->flags &= ~FCF_ASYNC_SENT;
2974 qlt_schedule_sess_for_deletion(fcport);
2975 break;
2976 }
2977 break;
2978
2979 default:
2980 ql_dbg(ql_dbg_disc, vha, 0x20eb,
2981 "%s %8phC cmd error 2 fw_status 0x%x 0x%x 0x%x\n",
2982 __func__, sp->fcport->port_name,
2983 fw_status[0], fw_status[1], fw_status[2]);
2984
2985 sp->fcport->flags &= ~FCF_ASYNC_SENT;
2986 qlt_schedule_sess_for_deletion(fcport);
2987 break;
2988 }
2989
2990 e = qla2x00_alloc_work(vha, QLA_EVT_UNMAP);
2991 if (!e) {
2992 struct srb_iocb *elsio = &sp->u.iocb_cmd;
2993
2994 qla2x00_els_dcmd2_free(vha, &elsio->u.els_plogi);
2995 /* ref: INIT */
2996 kref_put(&sp->cmd_kref, qla2x00_sp_release);
2997 return;
2998 }
2999 e->u.iosb.sp = sp;
3000 qla2x00_post_work(vha, e);
3001 }
3002 }
3003
3004 int
qla24xx_els_dcmd2_iocb(scsi_qla_host_t * vha,int els_opcode,fc_port_t * fcport,bool wait)3005 qla24xx_els_dcmd2_iocb(scsi_qla_host_t *vha, int els_opcode,
3006 fc_port_t *fcport, bool wait)
3007 {
3008 srb_t *sp;
3009 struct srb_iocb *elsio = NULL;
3010 struct qla_hw_data *ha = vha->hw;
3011 int rval = QLA_SUCCESS;
3012 void *ptr, *resp_ptr;
3013
3014 /* Alloc SRB structure
3015 * ref: INIT
3016 */
3017 sp = qla2x00_get_sp(vha, fcport, GFP_KERNEL);
3018 if (!sp) {
3019 ql_log(ql_log_info, vha, 0x70e6,
3020 "SRB allocation failed\n");
3021 fcport->flags &= ~FCF_ASYNC_ACTIVE;
3022 return -ENOMEM;
3023 }
3024
3025 fcport->flags |= FCF_ASYNC_SENT;
3026 qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_PEND);
3027 elsio = &sp->u.iocb_cmd;
3028 ql_dbg(ql_dbg_io, vha, 0x3073,
3029 "%s Enter: PLOGI portid=%06x\n", __func__, fcport->d_id.b24);
3030
3031 if (wait)
3032 sp->flags = SRB_WAKEUP_ON_COMP;
3033
3034 sp->type = SRB_ELS_DCMD;
3035 sp->name = "ELS_DCMD";
3036 sp->fcport = fcport;
3037 qla2x00_init_async_sp(sp, ELS_DCMD_TIMEOUT + 2,
3038 qla2x00_els_dcmd2_sp_done);
3039 sp->u.iocb_cmd.timeout = qla2x00_els_dcmd2_iocb_timeout;
3040
3041 elsio->u.els_plogi.tx_size = elsio->u.els_plogi.rx_size = DMA_POOL_SIZE;
3042
3043 ptr = elsio->u.els_plogi.els_plogi_pyld =
3044 dma_alloc_coherent(&ha->pdev->dev, elsio->u.els_plogi.tx_size,
3045 &elsio->u.els_plogi.els_plogi_pyld_dma, GFP_KERNEL);
3046
3047 if (!elsio->u.els_plogi.els_plogi_pyld) {
3048 rval = QLA_FUNCTION_FAILED;
3049 goto out;
3050 }
3051
3052 resp_ptr = elsio->u.els_plogi.els_resp_pyld =
3053 dma_alloc_coherent(&ha->pdev->dev, elsio->u.els_plogi.rx_size,
3054 &elsio->u.els_plogi.els_resp_pyld_dma, GFP_KERNEL);
3055
3056 if (!elsio->u.els_plogi.els_resp_pyld) {
3057 rval = QLA_FUNCTION_FAILED;
3058 goto out;
3059 }
3060
3061 ql_dbg(ql_dbg_io, vha, 0x3073, "PLOGI %p %p\n", ptr, resp_ptr);
3062
3063 memset(ptr, 0, sizeof(struct els_plogi_payload));
3064 memset(resp_ptr, 0, sizeof(struct els_plogi_payload));
3065 memcpy(elsio->u.els_plogi.els_plogi_pyld->data,
3066 &ha->plogi_els_payld.fl_csp, LOGIN_TEMPLATE_SIZE);
3067
3068 elsio->u.els_plogi.els_cmd = els_opcode;
3069 elsio->u.els_plogi.els_plogi_pyld->opcode = els_opcode;
3070
3071 if (els_opcode == ELS_DCMD_PLOGI && DBELL_ACTIVE(vha)) {
3072 struct fc_els_flogi *p = ptr;
3073
3074 p->fl_csp.sp_features |= cpu_to_be16(FC_SP_FT_SEC);
3075 }
3076
3077 ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x3073, "PLOGI buffer:\n");
3078 ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x0109,
3079 (uint8_t *)elsio->u.els_plogi.els_plogi_pyld,
3080 sizeof(*elsio->u.els_plogi.els_plogi_pyld));
3081
3082 init_completion(&elsio->u.els_plogi.comp);
3083 rval = qla2x00_start_sp(sp);
3084 if (rval != QLA_SUCCESS) {
3085 rval = QLA_FUNCTION_FAILED;
3086 } else {
3087 ql_dbg(ql_dbg_disc, vha, 0x3074,
3088 "%s PLOGI sent, hdl=%x, loopid=%x, to port_id %06x from port_id %06x\n",
3089 sp->name, sp->handle, fcport->loop_id,
3090 fcport->d_id.b24, vha->d_id.b24);
3091 }
3092
3093 if (wait) {
3094 wait_for_completion(&elsio->u.els_plogi.comp);
3095
3096 if (elsio->u.els_plogi.comp_status != CS_COMPLETE)
3097 rval = QLA_FUNCTION_FAILED;
3098 } else {
3099 goto done;
3100 }
3101
3102 out:
3103 fcport->flags &= ~(FCF_ASYNC_SENT | FCF_ASYNC_ACTIVE);
3104 qla2x00_els_dcmd2_free(vha, &elsio->u.els_plogi);
3105 /* ref: INIT */
3106 kref_put(&sp->cmd_kref, qla2x00_sp_release);
3107 done:
3108 return rval;
3109 }
3110
3111 /* it is assume qpair lock is held */
qla_els_pt_iocb(struct scsi_qla_host * vha,struct els_entry_24xx * els_iocb,struct qla_els_pt_arg * a)3112 void qla_els_pt_iocb(struct scsi_qla_host *vha,
3113 struct els_entry_24xx *els_iocb,
3114 struct qla_els_pt_arg *a)
3115 {
3116 els_iocb->entry_type = ELS_IOCB_TYPE;
3117 els_iocb->entry_count = 1;
3118 els_iocb->sys_define = 0;
3119 els_iocb->entry_status = 0;
3120 els_iocb->handle = QLA_SKIP_HANDLE;
3121 els_iocb->nport_handle = a->nport_handle;
3122 els_iocb->rx_xchg_address = a->rx_xchg_address;
3123 els_iocb->tx_dsd_count = cpu_to_le16(1);
3124 els_iocb->vp_index = a->vp_idx;
3125 els_iocb->sof_type = EST_SOFI3;
3126 els_iocb->rx_dsd_count = cpu_to_le16(0);
3127 els_iocb->opcode = a->els_opcode;
3128
3129 els_iocb->d_id[0] = a->did.b.al_pa;
3130 els_iocb->d_id[1] = a->did.b.area;
3131 els_iocb->d_id[2] = a->did.b.domain;
3132 /* For SID the byte order is different than DID */
3133 els_iocb->s_id[1] = vha->d_id.b.al_pa;
3134 els_iocb->s_id[2] = vha->d_id.b.area;
3135 els_iocb->s_id[0] = vha->d_id.b.domain;
3136
3137 els_iocb->control_flags = cpu_to_le16(a->control_flags);
3138
3139 els_iocb->tx_byte_count = cpu_to_le32(a->tx_byte_count);
3140 els_iocb->tx_len = cpu_to_le32(a->tx_len);
3141 put_unaligned_le64(a->tx_addr, &els_iocb->tx_address);
3142
3143 els_iocb->rx_byte_count = cpu_to_le32(a->rx_byte_count);
3144 els_iocb->rx_len = cpu_to_le32(a->rx_len);
3145 put_unaligned_le64(a->rx_addr, &els_iocb->rx_address);
3146 }
3147
3148 static void
qla24xx_els_iocb(srb_t * sp,struct els_entry_24xx * els_iocb)3149 qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb)
3150 {
3151 struct bsg_job *bsg_job = sp->u.bsg_job;
3152 struct fc_bsg_request *bsg_request = bsg_job->request;
3153
3154 els_iocb->entry_type = ELS_IOCB_TYPE;
3155 els_iocb->entry_count = 1;
3156 els_iocb->sys_define = 0;
3157 els_iocb->entry_status = 0;
3158 els_iocb->handle = sp->handle;
3159 els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
3160 els_iocb->tx_dsd_count = cpu_to_le16(bsg_job->request_payload.sg_cnt);
3161 els_iocb->vp_index = sp->vha->vp_idx;
3162 els_iocb->sof_type = EST_SOFI3;
3163 els_iocb->rx_dsd_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt);
3164
3165 els_iocb->opcode =
3166 sp->type == SRB_ELS_CMD_RPT ?
3167 bsg_request->rqst_data.r_els.els_code :
3168 bsg_request->rqst_data.h_els.command_code;
3169 els_iocb->d_id[0] = sp->fcport->d_id.b.al_pa;
3170 els_iocb->d_id[1] = sp->fcport->d_id.b.area;
3171 els_iocb->d_id[2] = sp->fcport->d_id.b.domain;
3172 els_iocb->control_flags = 0;
3173 els_iocb->rx_byte_count =
3174 cpu_to_le32(bsg_job->reply_payload.payload_len);
3175 els_iocb->tx_byte_count =
3176 cpu_to_le32(bsg_job->request_payload.payload_len);
3177
3178 put_unaligned_le64(sg_dma_address(bsg_job->request_payload.sg_list),
3179 &els_iocb->tx_address);
3180 els_iocb->tx_len = cpu_to_le32(sg_dma_len
3181 (bsg_job->request_payload.sg_list));
3182
3183 put_unaligned_le64(sg_dma_address(bsg_job->reply_payload.sg_list),
3184 &els_iocb->rx_address);
3185 els_iocb->rx_len = cpu_to_le32(sg_dma_len
3186 (bsg_job->reply_payload.sg_list));
3187
3188 sp->vha->qla_stats.control_requests++;
3189 }
3190
3191 static void
qla2x00_ct_iocb(srb_t * sp,ms_iocb_entry_t * ct_iocb)3192 qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb)
3193 {
3194 uint16_t avail_dsds;
3195 struct dsd64 *cur_dsd;
3196 struct scatterlist *sg;
3197 int index;
3198 uint16_t tot_dsds;
3199 scsi_qla_host_t *vha = sp->vha;
3200 struct qla_hw_data *ha = vha->hw;
3201 struct bsg_job *bsg_job = sp->u.bsg_job;
3202 int entry_count = 1;
3203
3204 memset(ct_iocb, 0, sizeof(ms_iocb_entry_t));
3205 ct_iocb->entry_type = CT_IOCB_TYPE;
3206 ct_iocb->entry_status = 0;
3207 ct_iocb->handle1 = sp->handle;
3208 SET_TARGET_ID(ha, ct_iocb->loop_id, sp->fcport->loop_id);
3209 ct_iocb->status = cpu_to_le16(0);
3210 ct_iocb->control_flags = cpu_to_le16(0);
3211 ct_iocb->timeout = 0;
3212 ct_iocb->cmd_dsd_count =
3213 cpu_to_le16(bsg_job->request_payload.sg_cnt);
3214 ct_iocb->total_dsd_count =
3215 cpu_to_le16(bsg_job->request_payload.sg_cnt + 1);
3216 ct_iocb->req_bytecount =
3217 cpu_to_le32(bsg_job->request_payload.payload_len);
3218 ct_iocb->rsp_bytecount =
3219 cpu_to_le32(bsg_job->reply_payload.payload_len);
3220
3221 put_unaligned_le64(sg_dma_address(bsg_job->request_payload.sg_list),
3222 &ct_iocb->req_dsd.address);
3223 ct_iocb->req_dsd.length = ct_iocb->req_bytecount;
3224
3225 put_unaligned_le64(sg_dma_address(bsg_job->reply_payload.sg_list),
3226 &ct_iocb->rsp_dsd.address);
3227 ct_iocb->rsp_dsd.length = ct_iocb->rsp_bytecount;
3228
3229 avail_dsds = 1;
3230 cur_dsd = &ct_iocb->rsp_dsd;
3231 index = 0;
3232 tot_dsds = bsg_job->reply_payload.sg_cnt;
3233
3234 for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) {
3235 cont_a64_entry_t *cont_pkt;
3236
3237 /* Allocate additional continuation packets? */
3238 if (avail_dsds == 0) {
3239 /*
3240 * Five DSDs are available in the Cont.
3241 * Type 1 IOCB.
3242 */
3243 cont_pkt = qla2x00_prep_cont_type1_iocb(vha,
3244 vha->hw->req_q_map[0]);
3245 cur_dsd = cont_pkt->dsd;
3246 avail_dsds = 5;
3247 entry_count++;
3248 }
3249
3250 append_dsd64(&cur_dsd, sg);
3251 avail_dsds--;
3252 }
3253 ct_iocb->entry_count = entry_count;
3254
3255 sp->vha->qla_stats.control_requests++;
3256 }
3257
3258 static void
qla24xx_ct_iocb(srb_t * sp,struct ct_entry_24xx * ct_iocb)3259 qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb)
3260 {
3261 uint16_t avail_dsds;
3262 struct dsd64 *cur_dsd;
3263 struct scatterlist *sg;
3264 int index;
3265 uint16_t cmd_dsds, rsp_dsds;
3266 scsi_qla_host_t *vha = sp->vha;
3267 struct qla_hw_data *ha = vha->hw;
3268 struct bsg_job *bsg_job = sp->u.bsg_job;
3269 int entry_count = 1;
3270 cont_a64_entry_t *cont_pkt = NULL;
3271
3272 ct_iocb->entry_type = CT_IOCB_TYPE;
3273 ct_iocb->entry_status = 0;
3274 ct_iocb->sys_define = 0;
3275 ct_iocb->handle = sp->handle;
3276
3277 ct_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
3278 ct_iocb->vp_index = sp->vha->vp_idx;
3279 ct_iocb->comp_status = cpu_to_le16(0);
3280
3281 cmd_dsds = bsg_job->request_payload.sg_cnt;
3282 rsp_dsds = bsg_job->reply_payload.sg_cnt;
3283
3284 ct_iocb->cmd_dsd_count = cpu_to_le16(cmd_dsds);
3285 ct_iocb->timeout = 0;
3286 ct_iocb->rsp_dsd_count = cpu_to_le16(rsp_dsds);
3287 ct_iocb->cmd_byte_count =
3288 cpu_to_le32(bsg_job->request_payload.payload_len);
3289
3290 avail_dsds = 2;
3291 cur_dsd = ct_iocb->dsd;
3292 index = 0;
3293
3294 for_each_sg(bsg_job->request_payload.sg_list, sg, cmd_dsds, index) {
3295 /* Allocate additional continuation packets? */
3296 if (avail_dsds == 0) {
3297 /*
3298 * Five DSDs are available in the Cont.
3299 * Type 1 IOCB.
3300 */
3301 cont_pkt = qla2x00_prep_cont_type1_iocb(
3302 vha, ha->req_q_map[0]);
3303 cur_dsd = cont_pkt->dsd;
3304 avail_dsds = 5;
3305 entry_count++;
3306 }
3307
3308 append_dsd64(&cur_dsd, sg);
3309 avail_dsds--;
3310 }
3311
3312 index = 0;
3313
3314 for_each_sg(bsg_job->reply_payload.sg_list, sg, rsp_dsds, index) {
3315 /* Allocate additional continuation packets? */
3316 if (avail_dsds == 0) {
3317 /*
3318 * Five DSDs are available in the Cont.
3319 * Type 1 IOCB.
3320 */
3321 cont_pkt = qla2x00_prep_cont_type1_iocb(vha,
3322 ha->req_q_map[0]);
3323 cur_dsd = cont_pkt->dsd;
3324 avail_dsds = 5;
3325 entry_count++;
3326 }
3327
3328 append_dsd64(&cur_dsd, sg);
3329 avail_dsds--;
3330 }
3331 ct_iocb->entry_count = entry_count;
3332 }
3333
3334 /*
3335 * qla82xx_start_scsi() - Send a SCSI command to the ISP
3336 * @sp: command to send to the ISP
3337 *
3338 * Returns non-zero if a failure occurred, else zero.
3339 */
3340 int
qla82xx_start_scsi(srb_t * sp)3341 qla82xx_start_scsi(srb_t *sp)
3342 {
3343 int nseg;
3344 unsigned long flags;
3345 struct scsi_cmnd *cmd;
3346 uint32_t *clr_ptr;
3347 uint32_t handle;
3348 uint16_t cnt;
3349 uint16_t req_cnt;
3350 uint16_t tot_dsds;
3351 struct device_reg_82xx __iomem *reg;
3352 uint32_t dbval;
3353 __be32 *fcp_dl;
3354 uint8_t additional_cdb_len;
3355 struct ct6_dsd *ctx;
3356 struct scsi_qla_host *vha = sp->vha;
3357 struct qla_hw_data *ha = vha->hw;
3358 struct req_que *req = NULL;
3359 struct rsp_que *rsp = NULL;
3360
3361 /* Setup device pointers. */
3362 reg = &ha->iobase->isp82;
3363 cmd = GET_CMD_SP(sp);
3364 req = vha->req;
3365 rsp = ha->rsp_q_map[0];
3366
3367 /* So we know we haven't pci_map'ed anything yet */
3368 tot_dsds = 0;
3369
3370 dbval = 0x04 | (ha->portnum << 5);
3371
3372 /* Send marker if required */
3373 if (vha->marker_needed != 0) {
3374 if (qla2x00_marker(vha, ha->base_qpair,
3375 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) {
3376 ql_log(ql_log_warn, vha, 0x300c,
3377 "qla2x00_marker failed for cmd=%p.\n", cmd);
3378 return QLA_FUNCTION_FAILED;
3379 }
3380 vha->marker_needed = 0;
3381 }
3382
3383 /* Acquire ring specific lock */
3384 spin_lock_irqsave(&ha->hardware_lock, flags);
3385
3386 handle = qla2xxx_get_next_handle(req);
3387 if (handle == 0)
3388 goto queuing_error;
3389
3390 /* Map the sg table so we have an accurate count of sg entries needed */
3391 if (scsi_sg_count(cmd)) {
3392 nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
3393 scsi_sg_count(cmd), cmd->sc_data_direction);
3394 if (unlikely(!nseg))
3395 goto queuing_error;
3396 } else
3397 nseg = 0;
3398
3399 tot_dsds = nseg;
3400
3401 if (tot_dsds > ql2xshiftctondsd) {
3402 struct cmd_type_6 *cmd_pkt;
3403 uint16_t more_dsd_lists = 0;
3404 struct dsd_dma *dsd_ptr;
3405 uint16_t i;
3406
3407 more_dsd_lists = qla24xx_calc_dsd_lists(tot_dsds);
3408 if ((more_dsd_lists + ha->gbl_dsd_inuse) >= NUM_DSD_CHAIN) {
3409 ql_dbg(ql_dbg_io, vha, 0x300d,
3410 "Num of DSD list %d is than %d for cmd=%p.\n",
3411 more_dsd_lists + ha->gbl_dsd_inuse, NUM_DSD_CHAIN,
3412 cmd);
3413 goto queuing_error;
3414 }
3415
3416 if (more_dsd_lists <= ha->gbl_dsd_avail)
3417 goto sufficient_dsds;
3418 else
3419 more_dsd_lists -= ha->gbl_dsd_avail;
3420
3421 for (i = 0; i < more_dsd_lists; i++) {
3422 dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
3423 if (!dsd_ptr) {
3424 ql_log(ql_log_fatal, vha, 0x300e,
3425 "Failed to allocate memory for dsd_dma "
3426 "for cmd=%p.\n", cmd);
3427 goto queuing_error;
3428 }
3429
3430 dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool,
3431 GFP_ATOMIC, &dsd_ptr->dsd_list_dma);
3432 if (!dsd_ptr->dsd_addr) {
3433 kfree(dsd_ptr);
3434 ql_log(ql_log_fatal, vha, 0x300f,
3435 "Failed to allocate memory for dsd_addr "
3436 "for cmd=%p.\n", cmd);
3437 goto queuing_error;
3438 }
3439 list_add_tail(&dsd_ptr->list, &ha->gbl_dsd_list);
3440 ha->gbl_dsd_avail++;
3441 }
3442
3443 sufficient_dsds:
3444 req_cnt = 1;
3445
3446 if (req->cnt < (req_cnt + 2)) {
3447 cnt = (uint16_t)rd_reg_dword_relaxed(
3448 ®->req_q_out[0]);
3449 if (req->ring_index < cnt)
3450 req->cnt = cnt - req->ring_index;
3451 else
3452 req->cnt = req->length -
3453 (req->ring_index - cnt);
3454 if (req->cnt < (req_cnt + 2))
3455 goto queuing_error;
3456 }
3457
3458 ctx = sp->u.scmd.ct6_ctx =
3459 mempool_alloc(ha->ctx_mempool, GFP_ATOMIC);
3460 if (!ctx) {
3461 ql_log(ql_log_fatal, vha, 0x3010,
3462 "Failed to allocate ctx for cmd=%p.\n", cmd);
3463 goto queuing_error;
3464 }
3465
3466 memset(ctx, 0, sizeof(struct ct6_dsd));
3467 ctx->fcp_cmnd = dma_pool_zalloc(ha->fcp_cmnd_dma_pool,
3468 GFP_ATOMIC, &ctx->fcp_cmnd_dma);
3469 if (!ctx->fcp_cmnd) {
3470 ql_log(ql_log_fatal, vha, 0x3011,
3471 "Failed to allocate fcp_cmnd for cmd=%p.\n", cmd);
3472 goto queuing_error;
3473 }
3474
3475 /* Initialize the DSD list and dma handle */
3476 INIT_LIST_HEAD(&ctx->dsd_list);
3477 ctx->dsd_use_cnt = 0;
3478
3479 if (cmd->cmd_len > 16) {
3480 additional_cdb_len = cmd->cmd_len - 16;
3481 if ((cmd->cmd_len % 4) != 0) {
3482 /* SCSI command bigger than 16 bytes must be
3483 * multiple of 4
3484 */
3485 ql_log(ql_log_warn, vha, 0x3012,
3486 "scsi cmd len %d not multiple of 4 "
3487 "for cmd=%p.\n", cmd->cmd_len, cmd);
3488 goto queuing_error_fcp_cmnd;
3489 }
3490 ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4;
3491 } else {
3492 additional_cdb_len = 0;
3493 ctx->fcp_cmnd_len = 12 + 16 + 4;
3494 }
3495
3496 cmd_pkt = (struct cmd_type_6 *)req->ring_ptr;
3497 cmd_pkt->handle = make_handle(req->id, handle);
3498
3499 /* Zero out remaining portion of packet. */
3500 /* tagged queuing modifier -- default is TSK_SIMPLE (0). */
3501 clr_ptr = (uint32_t *)cmd_pkt + 2;
3502 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
3503 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
3504
3505 /* Set NPORT-ID and LUN number*/
3506 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
3507 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
3508 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
3509 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
3510 cmd_pkt->vp_index = sp->vha->vp_idx;
3511
3512 /* Build IOCB segments */
3513 if (qla24xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds))
3514 goto queuing_error_fcp_cmnd;
3515
3516 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
3517 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
3518
3519 /* build FCP_CMND IU */
3520 int_to_scsilun(cmd->device->lun, &ctx->fcp_cmnd->lun);
3521 ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len;
3522
3523 if (cmd->sc_data_direction == DMA_TO_DEVICE)
3524 ctx->fcp_cmnd->additional_cdb_len |= 1;
3525 else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
3526 ctx->fcp_cmnd->additional_cdb_len |= 2;
3527
3528 /* Populate the FCP_PRIO. */
3529 if (ha->flags.fcp_prio_enabled)
3530 ctx->fcp_cmnd->task_attribute |=
3531 sp->fcport->fcp_prio << 3;
3532
3533 memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len);
3534
3535 fcp_dl = (__be32 *)(ctx->fcp_cmnd->cdb + 16 +
3536 additional_cdb_len);
3537 *fcp_dl = htonl((uint32_t)scsi_bufflen(cmd));
3538
3539 cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len);
3540 put_unaligned_le64(ctx->fcp_cmnd_dma,
3541 &cmd_pkt->fcp_cmnd_dseg_address);
3542
3543 sp->flags |= SRB_FCP_CMND_DMA_VALID;
3544 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
3545 /* Set total data segment count. */
3546 cmd_pkt->entry_count = (uint8_t)req_cnt;
3547 /* Specify response queue number where
3548 * completion should happen
3549 */
3550 cmd_pkt->entry_status = (uint8_t) rsp->id;
3551 } else {
3552 struct cmd_type_7 *cmd_pkt;
3553
3554 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
3555 if (req->cnt < (req_cnt + 2)) {
3556 cnt = (uint16_t)rd_reg_dword_relaxed(
3557 ®->req_q_out[0]);
3558 if (req->ring_index < cnt)
3559 req->cnt = cnt - req->ring_index;
3560 else
3561 req->cnt = req->length -
3562 (req->ring_index - cnt);
3563 }
3564 if (req->cnt < (req_cnt + 2))
3565 goto queuing_error;
3566
3567 cmd_pkt = (struct cmd_type_7 *)req->ring_ptr;
3568 cmd_pkt->handle = make_handle(req->id, handle);
3569
3570 /* Zero out remaining portion of packet. */
3571 /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/
3572 clr_ptr = (uint32_t *)cmd_pkt + 2;
3573 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
3574 cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
3575
3576 /* Set NPORT-ID and LUN number*/
3577 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
3578 cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
3579 cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
3580 cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
3581 cmd_pkt->vp_index = sp->vha->vp_idx;
3582
3583 int_to_scsilun(cmd->device->lun, &cmd_pkt->lun);
3584 host_to_fcp_swap((uint8_t *)&cmd_pkt->lun,
3585 sizeof(cmd_pkt->lun));
3586
3587 /* Populate the FCP_PRIO. */
3588 if (ha->flags.fcp_prio_enabled)
3589 cmd_pkt->task |= sp->fcport->fcp_prio << 3;
3590
3591 /* Load SCSI command packet. */
3592 memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len);
3593 host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb));
3594
3595 cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
3596
3597 /* Build IOCB segments */
3598 qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds, req);
3599
3600 /* Set total data segment count. */
3601 cmd_pkt->entry_count = (uint8_t)req_cnt;
3602 /* Specify response queue number where
3603 * completion should happen.
3604 */
3605 cmd_pkt->entry_status = (uint8_t) rsp->id;
3606
3607 }
3608 /* Build command packet. */
3609 req->current_outstanding_cmd = handle;
3610 req->outstanding_cmds[handle] = sp;
3611 sp->handle = handle;
3612 cmd->host_scribble = (unsigned char *)(unsigned long)handle;
3613 req->cnt -= req_cnt;
3614 wmb();
3615
3616 /* Adjust ring index. */
3617 req->ring_index++;
3618 if (req->ring_index == req->length) {
3619 req->ring_index = 0;
3620 req->ring_ptr = req->ring;
3621 } else
3622 req->ring_ptr++;
3623
3624 sp->flags |= SRB_DMA_VALID;
3625
3626 /* Set chip new ring index. */
3627 /* write, read and verify logic */
3628 dbval = dbval | (req->id << 8) | (req->ring_index << 16);
3629 if (ql2xdbwr)
3630 qla82xx_wr_32(ha, (uintptr_t __force)ha->nxdb_wr_ptr, dbval);
3631 else {
3632 wrt_reg_dword(ha->nxdb_wr_ptr, dbval);
3633 wmb();
3634 while (rd_reg_dword(ha->nxdb_rd_ptr) != dbval) {
3635 wrt_reg_dword(ha->nxdb_wr_ptr, dbval);
3636 wmb();
3637 }
3638 }
3639
3640 /* Manage unprocessed RIO/ZIO commands in response queue. */
3641 if (vha->flags.process_response_queue &&
3642 rsp->ring_ptr->signature != RESPONSE_PROCESSED)
3643 qla24xx_process_response_queue(vha, rsp);
3644
3645 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3646 return QLA_SUCCESS;
3647
3648 queuing_error_fcp_cmnd:
3649 dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma);
3650 queuing_error:
3651 if (tot_dsds)
3652 scsi_dma_unmap(cmd);
3653
3654 if (sp->u.scmd.crc_ctx) {
3655 mempool_free(sp->u.scmd.crc_ctx, ha->ctx_mempool);
3656 sp->u.scmd.crc_ctx = NULL;
3657 }
3658 spin_unlock_irqrestore(&ha->hardware_lock, flags);
3659
3660 return QLA_FUNCTION_FAILED;
3661 }
3662
3663 static void
qla24xx_abort_iocb(srb_t * sp,struct abort_entry_24xx * abt_iocb)3664 qla24xx_abort_iocb(srb_t *sp, struct abort_entry_24xx *abt_iocb)
3665 {
3666 struct srb_iocb *aio = &sp->u.iocb_cmd;
3667 scsi_qla_host_t *vha = sp->vha;
3668 struct req_que *req = sp->qpair->req;
3669 srb_t *orig_sp = sp->cmd_sp;
3670
3671 memset(abt_iocb, 0, sizeof(struct abort_entry_24xx));
3672 abt_iocb->entry_type = ABORT_IOCB_TYPE;
3673 abt_iocb->entry_count = 1;
3674 abt_iocb->handle = make_handle(req->id, sp->handle);
3675 if (sp->fcport) {
3676 abt_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id);
3677 abt_iocb->port_id[0] = sp->fcport->d_id.b.al_pa;
3678 abt_iocb->port_id[1] = sp->fcport->d_id.b.area;
3679 abt_iocb->port_id[2] = sp->fcport->d_id.b.domain;
3680 }
3681 abt_iocb->handle_to_abort =
3682 make_handle(le16_to_cpu(aio->u.abt.req_que_no),
3683 aio->u.abt.cmd_hndl);
3684 abt_iocb->vp_index = vha->vp_idx;
3685 abt_iocb->req_que_no = aio->u.abt.req_que_no;
3686
3687 /* need to pass original sp */
3688 if (orig_sp)
3689 qla_nvme_abort_set_option(abt_iocb, orig_sp);
3690
3691 /* Send the command to the firmware */
3692 wmb();
3693 }
3694
3695 static void
qla2x00_mb_iocb(srb_t * sp,struct mbx_24xx_entry * mbx)3696 qla2x00_mb_iocb(srb_t *sp, struct mbx_24xx_entry *mbx)
3697 {
3698 int i, sz;
3699
3700 mbx->entry_type = MBX_IOCB_TYPE;
3701 mbx->handle = sp->handle;
3702 sz = min(ARRAY_SIZE(mbx->mb), ARRAY_SIZE(sp->u.iocb_cmd.u.mbx.out_mb));
3703
3704 for (i = 0; i < sz; i++)
3705 mbx->mb[i] = sp->u.iocb_cmd.u.mbx.out_mb[i];
3706 }
3707
3708 static void
qla2x00_ctpthru_cmd_iocb(srb_t * sp,struct ct_entry_24xx * ct_pkt)3709 qla2x00_ctpthru_cmd_iocb(srb_t *sp, struct ct_entry_24xx *ct_pkt)
3710 {
3711 sp->u.iocb_cmd.u.ctarg.iocb = ct_pkt;
3712 qla24xx_prep_ms_iocb(sp->vha, &sp->u.iocb_cmd.u.ctarg);
3713 ct_pkt->handle = sp->handle;
3714 }
3715
qla2x00_send_notify_ack_iocb(srb_t * sp,struct nack_to_isp * nack)3716 static void qla2x00_send_notify_ack_iocb(srb_t *sp,
3717 struct nack_to_isp *nack)
3718 {
3719 struct imm_ntfy_from_isp *ntfy = sp->u.iocb_cmd.u.nack.ntfy;
3720
3721 nack->entry_type = NOTIFY_ACK_TYPE;
3722 nack->entry_count = 1;
3723 nack->ox_id = ntfy->ox_id;
3724
3725 nack->u.isp24.handle = sp->handle;
3726 nack->u.isp24.nport_handle = ntfy->u.isp24.nport_handle;
3727 if (le16_to_cpu(ntfy->u.isp24.status) == IMM_NTFY_ELS) {
3728 nack->u.isp24.flags = ntfy->u.isp24.flags &
3729 cpu_to_le16(NOTIFY24XX_FLAGS_PUREX_IOCB);
3730 }
3731 nack->u.isp24.srr_rx_id = ntfy->u.isp24.srr_rx_id;
3732 nack->u.isp24.status = ntfy->u.isp24.status;
3733 nack->u.isp24.status_subcode = ntfy->u.isp24.status_subcode;
3734 nack->u.isp24.fw_handle = ntfy->u.isp24.fw_handle;
3735 nack->u.isp24.exchange_address = ntfy->u.isp24.exchange_address;
3736 nack->u.isp24.srr_rel_offs = ntfy->u.isp24.srr_rel_offs;
3737 nack->u.isp24.srr_ui = ntfy->u.isp24.srr_ui;
3738 nack->u.isp24.srr_flags = 0;
3739 nack->u.isp24.srr_reject_code = 0;
3740 nack->u.isp24.srr_reject_code_expl = 0;
3741 nack->u.isp24.vp_index = ntfy->u.isp24.vp_index;
3742
3743 if (ntfy->u.isp24.status_subcode == ELS_PLOGI &&
3744 (le16_to_cpu(ntfy->u.isp24.flags) & NOTIFY24XX_FLAGS_FCSP) &&
3745 sp->vha->hw->flags.edif_enabled) {
3746 ql_dbg(ql_dbg_disc, sp->vha, 0x3074,
3747 "%s PLOGI NACK sent with FC SECURITY bit, hdl=%x, loopid=%x, to pid %06x\n",
3748 sp->name, sp->handle, sp->fcport->loop_id,
3749 sp->fcport->d_id.b24);
3750 nack->u.isp24.flags |= cpu_to_le16(NOTIFY_ACK_FLAGS_FCSP);
3751 }
3752 }
3753
3754 /*
3755 * Build NVME LS request
3756 */
3757 static void
qla_nvme_ls(srb_t * sp,struct pt_ls4_request * cmd_pkt)3758 qla_nvme_ls(srb_t *sp, struct pt_ls4_request *cmd_pkt)
3759 {
3760 struct srb_iocb *nvme;
3761
3762 nvme = &sp->u.iocb_cmd;
3763 cmd_pkt->entry_type = PT_LS4_REQUEST;
3764 cmd_pkt->entry_count = 1;
3765 cmd_pkt->control_flags = cpu_to_le16(CF_LS4_ORIGINATOR << CF_LS4_SHIFT);
3766
3767 cmd_pkt->timeout = cpu_to_le16(nvme->u.nvme.timeout_sec);
3768 cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
3769 cmd_pkt->vp_index = sp->fcport->vha->vp_idx;
3770
3771 cmd_pkt->tx_dseg_count = cpu_to_le16(1);
3772 cmd_pkt->tx_byte_count = cpu_to_le32(nvme->u.nvme.cmd_len);
3773 cmd_pkt->dsd[0].length = cpu_to_le32(nvme->u.nvme.cmd_len);
3774 put_unaligned_le64(nvme->u.nvme.cmd_dma, &cmd_pkt->dsd[0].address);
3775
3776 cmd_pkt->rx_dseg_count = cpu_to_le16(1);
3777 cmd_pkt->rx_byte_count = cpu_to_le32(nvme->u.nvme.rsp_len);
3778 cmd_pkt->dsd[1].length = cpu_to_le32(nvme->u.nvme.rsp_len);
3779 put_unaligned_le64(nvme->u.nvme.rsp_dma, &cmd_pkt->dsd[1].address);
3780 }
3781
3782 static void
qla25xx_ctrlvp_iocb(srb_t * sp,struct vp_ctrl_entry_24xx * vce)3783 qla25xx_ctrlvp_iocb(srb_t *sp, struct vp_ctrl_entry_24xx *vce)
3784 {
3785 int map, pos;
3786
3787 vce->entry_type = VP_CTRL_IOCB_TYPE;
3788 vce->handle = sp->handle;
3789 vce->entry_count = 1;
3790 vce->command = cpu_to_le16(sp->u.iocb_cmd.u.ctrlvp.cmd);
3791 vce->vp_count = cpu_to_le16(1);
3792
3793 /*
3794 * index map in firmware starts with 1; decrement index
3795 * this is ok as we never use index 0
3796 */
3797 map = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) / 8;
3798 pos = (sp->u.iocb_cmd.u.ctrlvp.vp_index - 1) & 7;
3799 vce->vp_idx_map[map] |= 1 << pos;
3800 }
3801
3802 static void
qla24xx_prlo_iocb(srb_t * sp,struct logio_entry_24xx * logio)3803 qla24xx_prlo_iocb(srb_t *sp, struct logio_entry_24xx *logio)
3804 {
3805 logio->entry_type = LOGINOUT_PORT_IOCB_TYPE;
3806 logio->control_flags =
3807 cpu_to_le16(LCF_COMMAND_PRLO|LCF_IMPL_PRLO);
3808
3809 logio->nport_handle = cpu_to_le16(sp->fcport->loop_id);
3810 logio->port_id[0] = sp->fcport->d_id.b.al_pa;
3811 logio->port_id[1] = sp->fcport->d_id.b.area;
3812 logio->port_id[2] = sp->fcport->d_id.b.domain;
3813 logio->vp_index = sp->fcport->vha->vp_idx;
3814 }
3815
3816 int
qla2x00_start_sp(srb_t * sp)3817 qla2x00_start_sp(srb_t *sp)
3818 {
3819 int rval = QLA_SUCCESS;
3820 scsi_qla_host_t *vha = sp->vha;
3821 struct qla_hw_data *ha = vha->hw;
3822 struct qla_qpair *qp = sp->qpair;
3823 void *pkt;
3824 unsigned long flags;
3825
3826 if (vha->hw->flags.eeh_busy)
3827 return -EIO;
3828
3829 spin_lock_irqsave(qp->qp_lock_ptr, flags);
3830 pkt = __qla2x00_alloc_iocbs(sp->qpair, sp);
3831 if (!pkt) {
3832 rval = EAGAIN;
3833 ql_log(ql_log_warn, vha, 0x700c,
3834 "qla2x00_alloc_iocbs failed.\n");
3835 goto done;
3836 }
3837
3838 switch (sp->type) {
3839 case SRB_LOGIN_CMD:
3840 IS_FWI2_CAPABLE(ha) ?
3841 qla24xx_login_iocb(sp, pkt) :
3842 qla2x00_login_iocb(sp, pkt);
3843 break;
3844 case SRB_PRLI_CMD:
3845 qla24xx_prli_iocb(sp, pkt);
3846 break;
3847 case SRB_LOGOUT_CMD:
3848 IS_FWI2_CAPABLE(ha) ?
3849 qla24xx_logout_iocb(sp, pkt) :
3850 qla2x00_logout_iocb(sp, pkt);
3851 break;
3852 case SRB_ELS_CMD_RPT:
3853 case SRB_ELS_CMD_HST:
3854 qla24xx_els_iocb(sp, pkt);
3855 break;
3856 case SRB_ELS_CMD_HST_NOLOGIN:
3857 qla_els_pt_iocb(sp->vha, pkt, &sp->u.bsg_cmd.u.els_arg);
3858 ((struct els_entry_24xx *)pkt)->handle = sp->handle;
3859 break;
3860 case SRB_CT_CMD:
3861 IS_FWI2_CAPABLE(ha) ?
3862 qla24xx_ct_iocb(sp, pkt) :
3863 qla2x00_ct_iocb(sp, pkt);
3864 break;
3865 case SRB_ADISC_CMD:
3866 IS_FWI2_CAPABLE(ha) ?
3867 qla24xx_adisc_iocb(sp, pkt) :
3868 qla2x00_adisc_iocb(sp, pkt);
3869 break;
3870 case SRB_TM_CMD:
3871 IS_QLAFX00(ha) ?
3872 qlafx00_tm_iocb(sp, pkt) :
3873 qla24xx_tm_iocb(sp, pkt);
3874 break;
3875 case SRB_FXIOCB_DCMD:
3876 case SRB_FXIOCB_BCMD:
3877 qlafx00_fxdisc_iocb(sp, pkt);
3878 break;
3879 case SRB_NVME_LS:
3880 qla_nvme_ls(sp, pkt);
3881 break;
3882 case SRB_ABT_CMD:
3883 IS_QLAFX00(ha) ?
3884 qlafx00_abort_iocb(sp, pkt) :
3885 qla24xx_abort_iocb(sp, pkt);
3886 break;
3887 case SRB_ELS_DCMD:
3888 qla24xx_els_logo_iocb(sp, pkt);
3889 break;
3890 case SRB_CT_PTHRU_CMD:
3891 qla2x00_ctpthru_cmd_iocb(sp, pkt);
3892 break;
3893 case SRB_MB_IOCB:
3894 qla2x00_mb_iocb(sp, pkt);
3895 break;
3896 case SRB_NACK_PLOGI:
3897 case SRB_NACK_PRLI:
3898 case SRB_NACK_LOGO:
3899 qla2x00_send_notify_ack_iocb(sp, pkt);
3900 break;
3901 case SRB_CTRL_VP:
3902 qla25xx_ctrlvp_iocb(sp, pkt);
3903 break;
3904 case SRB_PRLO_CMD:
3905 qla24xx_prlo_iocb(sp, pkt);
3906 break;
3907 case SRB_SA_UPDATE:
3908 qla24xx_sa_update_iocb(sp, pkt);
3909 break;
3910 case SRB_SA_REPLACE:
3911 qla24xx_sa_replace_iocb(sp, pkt);
3912 break;
3913 default:
3914 break;
3915 }
3916
3917 if (sp->start_timer) {
3918 /* ref: TMR timer ref
3919 * this code should be just before start_iocbs function
3920 * This will make sure that caller function don't to do
3921 * kref_put even on failure
3922 */
3923 kref_get(&sp->cmd_kref);
3924 add_timer(&sp->u.iocb_cmd.timer);
3925 }
3926
3927 wmb();
3928 qla2x00_start_iocbs(vha, qp->req);
3929 done:
3930 spin_unlock_irqrestore(qp->qp_lock_ptr, flags);
3931 return rval;
3932 }
3933
3934 static void
qla25xx_build_bidir_iocb(srb_t * sp,struct scsi_qla_host * vha,struct cmd_bidir * cmd_pkt,uint32_t tot_dsds)3935 qla25xx_build_bidir_iocb(srb_t *sp, struct scsi_qla_host *vha,
3936 struct cmd_bidir *cmd_pkt, uint32_t tot_dsds)
3937 {
3938 uint16_t avail_dsds;
3939 struct dsd64 *cur_dsd;
3940 uint32_t req_data_len = 0;
3941 uint32_t rsp_data_len = 0;
3942 struct scatterlist *sg;
3943 int index;
3944 int entry_count = 1;
3945 struct bsg_job *bsg_job = sp->u.bsg_job;
3946
3947 /*Update entry type to indicate bidir command */
3948 put_unaligned_le32(COMMAND_BIDIRECTIONAL, &cmd_pkt->entry_type);
3949
3950 /* Set the transfer direction, in this set both flags
3951 * Also set the BD_WRAP_BACK flag, firmware will take care
3952 * assigning DID=SID for outgoing pkts.
3953 */
3954 cmd_pkt->wr_dseg_count = cpu_to_le16(bsg_job->request_payload.sg_cnt);
3955 cmd_pkt->rd_dseg_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt);
3956 cmd_pkt->control_flags = cpu_to_le16(BD_WRITE_DATA | BD_READ_DATA |
3957 BD_WRAP_BACK);
3958
3959 req_data_len = rsp_data_len = bsg_job->request_payload.payload_len;
3960 cmd_pkt->wr_byte_count = cpu_to_le32(req_data_len);
3961 cmd_pkt->rd_byte_count = cpu_to_le32(rsp_data_len);
3962 cmd_pkt->timeout = cpu_to_le16(qla2x00_get_async_timeout(vha) + 2);
3963
3964 vha->bidi_stats.transfer_bytes += req_data_len;
3965 vha->bidi_stats.io_count++;
3966
3967 vha->qla_stats.output_bytes += req_data_len;
3968 vha->qla_stats.output_requests++;
3969
3970 /* Only one dsd is available for bidirectional IOCB, remaining dsds
3971 * are bundled in continuation iocb
3972 */
3973 avail_dsds = 1;
3974 cur_dsd = &cmd_pkt->fcp_dsd;
3975
3976 index = 0;
3977
3978 for_each_sg(bsg_job->request_payload.sg_list, sg,
3979 bsg_job->request_payload.sg_cnt, index) {
3980 cont_a64_entry_t *cont_pkt;
3981
3982 /* Allocate additional continuation packets */
3983 if (avail_dsds == 0) {
3984 /* Continuation type 1 IOCB can accomodate
3985 * 5 DSDS
3986 */
3987 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req);
3988 cur_dsd = cont_pkt->dsd;
3989 avail_dsds = 5;
3990 entry_count++;
3991 }
3992 append_dsd64(&cur_dsd, sg);
3993 avail_dsds--;
3994 }
3995 /* For read request DSD will always goes to continuation IOCB
3996 * and follow the write DSD. If there is room on the current IOCB
3997 * then it is added to that IOCB else new continuation IOCB is
3998 * allocated.
3999 */
4000 for_each_sg(bsg_job->reply_payload.sg_list, sg,
4001 bsg_job->reply_payload.sg_cnt, index) {
4002 cont_a64_entry_t *cont_pkt;
4003
4004 /* Allocate additional continuation packets */
4005 if (avail_dsds == 0) {
4006 /* Continuation type 1 IOCB can accomodate
4007 * 5 DSDS
4008 */
4009 cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req);
4010 cur_dsd = cont_pkt->dsd;
4011 avail_dsds = 5;
4012 entry_count++;
4013 }
4014 append_dsd64(&cur_dsd, sg);
4015 avail_dsds--;
4016 }
4017 /* This value should be same as number of IOCB required for this cmd */
4018 cmd_pkt->entry_count = entry_count;
4019 }
4020
4021 int
qla2x00_start_bidir(srb_t * sp,struct scsi_qla_host * vha,uint32_t tot_dsds)4022 qla2x00_start_bidir(srb_t *sp, struct scsi_qla_host *vha, uint32_t tot_dsds)
4023 {
4024
4025 struct qla_hw_data *ha = vha->hw;
4026 unsigned long flags;
4027 uint32_t handle;
4028 uint16_t req_cnt;
4029 uint16_t cnt;
4030 uint32_t *clr_ptr;
4031 struct cmd_bidir *cmd_pkt = NULL;
4032 struct rsp_que *rsp;
4033 struct req_que *req;
4034 int rval = EXT_STATUS_OK;
4035
4036 rval = QLA_SUCCESS;
4037
4038 rsp = ha->rsp_q_map[0];
4039 req = vha->req;
4040
4041 /* Send marker if required */
4042 if (vha->marker_needed != 0) {
4043 if (qla2x00_marker(vha, ha->base_qpair,
4044 0, 0, MK_SYNC_ALL) != QLA_SUCCESS)
4045 return EXT_STATUS_MAILBOX;
4046 vha->marker_needed = 0;
4047 }
4048
4049 /* Acquire ring specific lock */
4050 spin_lock_irqsave(&ha->hardware_lock, flags);
4051
4052 handle = qla2xxx_get_next_handle(req);
4053 if (handle == 0) {
4054 rval = EXT_STATUS_BUSY;
4055 goto queuing_error;
4056 }
4057
4058 /* Calculate number of IOCB required */
4059 req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
4060
4061 /* Check for room on request queue. */
4062 if (req->cnt < req_cnt + 2) {
4063 if (IS_SHADOW_REG_CAPABLE(ha)) {
4064 cnt = *req->out_ptr;
4065 } else {
4066 cnt = rd_reg_dword_relaxed(req->req_q_out);
4067 if (qla2x00_check_reg16_for_disconnect(vha, cnt))
4068 goto queuing_error;
4069 }
4070
4071 if (req->ring_index < cnt)
4072 req->cnt = cnt - req->ring_index;
4073 else
4074 req->cnt = req->length -
4075 (req->ring_index - cnt);
4076 }
4077 if (req->cnt < req_cnt + 2) {
4078 rval = EXT_STATUS_BUSY;
4079 goto queuing_error;
4080 }
4081
4082 cmd_pkt = (struct cmd_bidir *)req->ring_ptr;
4083 cmd_pkt->handle = make_handle(req->id, handle);
4084
4085 /* Zero out remaining portion of packet. */
4086 /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/
4087 clr_ptr = (uint32_t *)cmd_pkt + 2;
4088 memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
4089
4090 /* Set NPORT-ID (of vha)*/
4091 cmd_pkt->nport_handle = cpu_to_le16(vha->self_login_loop_id);
4092 cmd_pkt->port_id[0] = vha->d_id.b.al_pa;
4093 cmd_pkt->port_id[1] = vha->d_id.b.area;
4094 cmd_pkt->port_id[2] = vha->d_id.b.domain;
4095
4096 qla25xx_build_bidir_iocb(sp, vha, cmd_pkt, tot_dsds);
4097 cmd_pkt->entry_status = (uint8_t) rsp->id;
4098 /* Build command packet. */
4099 req->current_outstanding_cmd = handle;
4100 req->outstanding_cmds[handle] = sp;
4101 sp->handle = handle;
4102 req->cnt -= req_cnt;
4103
4104 /* Send the command to the firmware */
4105 wmb();
4106 qla2x00_start_iocbs(vha, req);
4107 queuing_error:
4108 spin_unlock_irqrestore(&ha->hardware_lock, flags);
4109
4110 return rval;
4111 }
4112