]>
Commit | Line | Data |
---|---|---|
fa90c54f AV |
1 | /* |
2 | * QLogic Fibre Channel HBA Driver | |
07e264b7 | 3 | * Copyright (c) 2003-2011 QLogic Corporation |
1da177e4 | 4 | * |
fa90c54f AV |
5 | * See LICENSE.qla2xxx for copyright and licensing details. |
6 | */ | |
1da177e4 LT |
7 | #include "qla_def.h" |
8 | ||
9 | #include <linux/blkdev.h> | |
10 | #include <linux/delay.h> | |
11 | ||
12 | #include <scsi/scsi_tcq.h> | |
13 | ||
59e0b8b0 | 14 | static void qla25xx_set_que(srb_t *, struct rsp_que **); |
1da177e4 LT |
15 | /** |
16 | * qla2x00_get_cmd_direction() - Determine control_flag data direction. | |
17 | * @cmd: SCSI command | |
18 | * | |
19 | * Returns the proper CF_* direction based on CDB. | |
20 | */ | |
21 | static inline uint16_t | |
49fd462a | 22 | qla2x00_get_cmd_direction(srb_t *sp) |
1da177e4 LT |
23 | { |
24 | uint16_t cflags; | |
25 | ||
26 | cflags = 0; | |
27 | ||
28 | /* Set transfer direction */ | |
49fd462a | 29 | if (sp->cmd->sc_data_direction == DMA_TO_DEVICE) { |
1da177e4 | 30 | cflags = CF_WRITE; |
e315cd28 | 31 | sp->fcport->vha->hw->qla_stats.output_bytes += |
49fd462a HZ |
32 | scsi_bufflen(sp->cmd); |
33 | } else if (sp->cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
1da177e4 | 34 | cflags = CF_READ; |
e315cd28 | 35 | sp->fcport->vha->hw->qla_stats.input_bytes += |
49fd462a HZ |
36 | scsi_bufflen(sp->cmd); |
37 | } | |
1da177e4 LT |
38 | return (cflags); |
39 | } | |
40 | ||
41 | /** | |
42 | * qla2x00_calc_iocbs_32() - Determine number of Command Type 2 and | |
43 | * Continuation Type 0 IOCBs to allocate. | |
44 | * | |
45 | * @dsds: number of data segment decriptors needed | |
46 | * | |
47 | * Returns the number of IOCB entries needed to store @dsds. | |
48 | */ | |
49 | uint16_t | |
50 | qla2x00_calc_iocbs_32(uint16_t dsds) | |
51 | { | |
52 | uint16_t iocbs; | |
53 | ||
54 | iocbs = 1; | |
55 | if (dsds > 3) { | |
56 | iocbs += (dsds - 3) / 7; | |
57 | if ((dsds - 3) % 7) | |
58 | iocbs++; | |
59 | } | |
60 | return (iocbs); | |
61 | } | |
62 | ||
63 | /** | |
64 | * qla2x00_calc_iocbs_64() - Determine number of Command Type 3 and | |
65 | * Continuation Type 1 IOCBs to allocate. | |
66 | * | |
67 | * @dsds: number of data segment decriptors needed | |
68 | * | |
69 | * Returns the number of IOCB entries needed to store @dsds. | |
70 | */ | |
71 | uint16_t | |
72 | qla2x00_calc_iocbs_64(uint16_t dsds) | |
73 | { | |
74 | uint16_t iocbs; | |
75 | ||
76 | iocbs = 1; | |
77 | if (dsds > 2) { | |
78 | iocbs += (dsds - 2) / 5; | |
79 | if ((dsds - 2) % 5) | |
80 | iocbs++; | |
81 | } | |
82 | return (iocbs); | |
83 | } | |
84 | ||
85 | /** | |
86 | * qla2x00_prep_cont_type0_iocb() - Initialize a Continuation Type 0 IOCB. | |
87 | * @ha: HA context | |
88 | * | |
89 | * Returns a pointer to the Continuation Type 0 IOCB packet. | |
90 | */ | |
91 | static inline cont_entry_t * | |
67c2e93a | 92 | qla2x00_prep_cont_type0_iocb(struct scsi_qla_host *vha) |
1da177e4 LT |
93 | { |
94 | cont_entry_t *cont_pkt; | |
67c2e93a | 95 | struct req_que *req = vha->req; |
1da177e4 | 96 | /* Adjust ring index. */ |
e315cd28 AC |
97 | req->ring_index++; |
98 | if (req->ring_index == req->length) { | |
99 | req->ring_index = 0; | |
100 | req->ring_ptr = req->ring; | |
1da177e4 | 101 | } else { |
e315cd28 | 102 | req->ring_ptr++; |
1da177e4 LT |
103 | } |
104 | ||
e315cd28 | 105 | cont_pkt = (cont_entry_t *)req->ring_ptr; |
1da177e4 LT |
106 | |
107 | /* Load packet defaults. */ | |
108 | *((uint32_t *)(&cont_pkt->entry_type)) = | |
109 | __constant_cpu_to_le32(CONTINUE_TYPE); | |
110 | ||
111 | return (cont_pkt); | |
112 | } | |
113 | ||
114 | /** | |
115 | * qla2x00_prep_cont_type1_iocb() - Initialize a Continuation Type 1 IOCB. | |
116 | * @ha: HA context | |
117 | * | |
118 | * Returns a pointer to the continuation type 1 IOCB packet. | |
119 | */ | |
120 | static inline cont_a64_entry_t * | |
0d2aa38e | 121 | qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *vha, struct req_que *req) |
1da177e4 LT |
122 | { |
123 | cont_a64_entry_t *cont_pkt; | |
124 | ||
125 | /* Adjust ring index. */ | |
e315cd28 AC |
126 | req->ring_index++; |
127 | if (req->ring_index == req->length) { | |
128 | req->ring_index = 0; | |
129 | req->ring_ptr = req->ring; | |
1da177e4 | 130 | } else { |
e315cd28 | 131 | req->ring_ptr++; |
1da177e4 LT |
132 | } |
133 | ||
e315cd28 | 134 | cont_pkt = (cont_a64_entry_t *)req->ring_ptr; |
1da177e4 LT |
135 | |
136 | /* Load packet defaults. */ | |
137 | *((uint32_t *)(&cont_pkt->entry_type)) = | |
138 | __constant_cpu_to_le32(CONTINUE_A64_TYPE); | |
139 | ||
140 | return (cont_pkt); | |
141 | } | |
142 | ||
bad75002 AE |
143 | static inline int |
144 | qla24xx_configure_prot_mode(srb_t *sp, uint16_t *fw_prot_opts) | |
145 | { | |
146 | uint8_t guard = scsi_host_get_guard(sp->cmd->device->host); | |
147 | ||
148 | /* We only support T10 DIF right now */ | |
149 | if (guard != SHOST_DIX_GUARD_CRC) { | |
7c3df132 SK |
150 | ql_dbg(ql_dbg_io, sp->fcport->vha, 0x3007, |
151 | "Unsupported guard: %d for cmd=%p.\n", guard, sp->cmd); | |
bad75002 AE |
152 | return 0; |
153 | } | |
154 | ||
155 | /* We always use DIFF Bundling for best performance */ | |
156 | *fw_prot_opts = 0; | |
157 | ||
158 | /* Translate SCSI opcode to a protection opcode */ | |
159 | switch (scsi_get_prot_op(sp->cmd)) { | |
160 | case SCSI_PROT_READ_STRIP: | |
161 | *fw_prot_opts |= PO_MODE_DIF_REMOVE; | |
162 | break; | |
163 | case SCSI_PROT_WRITE_INSERT: | |
164 | *fw_prot_opts |= PO_MODE_DIF_INSERT; | |
165 | break; | |
166 | case SCSI_PROT_READ_INSERT: | |
167 | *fw_prot_opts |= PO_MODE_DIF_INSERT; | |
168 | break; | |
169 | case SCSI_PROT_WRITE_STRIP: | |
170 | *fw_prot_opts |= PO_MODE_DIF_REMOVE; | |
171 | break; | |
172 | case SCSI_PROT_READ_PASS: | |
173 | *fw_prot_opts |= PO_MODE_DIF_PASS; | |
174 | break; | |
175 | case SCSI_PROT_WRITE_PASS: | |
176 | *fw_prot_opts |= PO_MODE_DIF_PASS; | |
177 | break; | |
178 | default: /* Normal Request */ | |
179 | *fw_prot_opts |= PO_MODE_DIF_PASS; | |
180 | break; | |
181 | } | |
182 | ||
183 | return scsi_prot_sg_count(sp->cmd); | |
184 | } | |
185 | ||
186 | /* | |
1da177e4 LT |
187 | * qla2x00_build_scsi_iocbs_32() - Build IOCB command utilizing 32bit |
188 | * capable IOCB types. | |
189 | * | |
190 | * @sp: SRB command to process | |
191 | * @cmd_pkt: Command type 2 IOCB | |
192 | * @tot_dsds: Total number of segments to transfer | |
193 | */ | |
194 | void qla2x00_build_scsi_iocbs_32(srb_t *sp, cmd_entry_t *cmd_pkt, | |
195 | uint16_t tot_dsds) | |
196 | { | |
197 | uint16_t avail_dsds; | |
198 | uint32_t *cur_dsd; | |
e315cd28 | 199 | scsi_qla_host_t *vha; |
1da177e4 | 200 | struct scsi_cmnd *cmd; |
385d70b4 FT |
201 | struct scatterlist *sg; |
202 | int i; | |
1da177e4 LT |
203 | |
204 | cmd = sp->cmd; | |
205 | ||
206 | /* Update entry type to indicate Command Type 2 IOCB */ | |
207 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
208 | __constant_cpu_to_le32(COMMAND_TYPE); | |
209 | ||
210 | /* No data transfer */ | |
385d70b4 | 211 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { |
1da177e4 LT |
212 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
213 | return; | |
214 | } | |
215 | ||
444786d7 | 216 | vha = sp->fcport->vha; |
49fd462a | 217 | cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); |
1da177e4 LT |
218 | |
219 | /* Three DSDs are available in the Command Type 2 IOCB */ | |
220 | avail_dsds = 3; | |
221 | cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address; | |
222 | ||
223 | /* Load data segments */ | |
385d70b4 FT |
224 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { |
225 | cont_entry_t *cont_pkt; | |
226 | ||
227 | /* Allocate additional continuation packets? */ | |
228 | if (avail_dsds == 0) { | |
229 | /* | |
230 | * Seven DSDs are available in the Continuation | |
231 | * Type 0 IOCB. | |
232 | */ | |
67c2e93a | 233 | cont_pkt = qla2x00_prep_cont_type0_iocb(vha); |
385d70b4 FT |
234 | cur_dsd = (uint32_t *)&cont_pkt->dseg_0_address; |
235 | avail_dsds = 7; | |
1da177e4 | 236 | } |
385d70b4 FT |
237 | |
238 | *cur_dsd++ = cpu_to_le32(sg_dma_address(sg)); | |
239 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
240 | avail_dsds--; | |
1da177e4 LT |
241 | } |
242 | } | |
243 | ||
244 | /** | |
245 | * qla2x00_build_scsi_iocbs_64() - Build IOCB command utilizing 64bit | |
246 | * capable IOCB types. | |
247 | * | |
248 | * @sp: SRB command to process | |
249 | * @cmd_pkt: Command type 3 IOCB | |
250 | * @tot_dsds: Total number of segments to transfer | |
251 | */ | |
252 | void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt, | |
253 | uint16_t tot_dsds) | |
254 | { | |
255 | uint16_t avail_dsds; | |
256 | uint32_t *cur_dsd; | |
e315cd28 | 257 | scsi_qla_host_t *vha; |
1da177e4 | 258 | struct scsi_cmnd *cmd; |
385d70b4 FT |
259 | struct scatterlist *sg; |
260 | int i; | |
1da177e4 LT |
261 | |
262 | cmd = sp->cmd; | |
263 | ||
264 | /* Update entry type to indicate Command Type 3 IOCB */ | |
265 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
266 | __constant_cpu_to_le32(COMMAND_A64_TYPE); | |
267 | ||
268 | /* No data transfer */ | |
385d70b4 | 269 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { |
1da177e4 LT |
270 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
271 | return; | |
272 | } | |
273 | ||
444786d7 | 274 | vha = sp->fcport->vha; |
49fd462a | 275 | cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); |
1da177e4 LT |
276 | |
277 | /* Two DSDs are available in the Command Type 3 IOCB */ | |
278 | avail_dsds = 2; | |
279 | cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address; | |
280 | ||
281 | /* Load data segments */ | |
385d70b4 FT |
282 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { |
283 | dma_addr_t sle_dma; | |
284 | cont_a64_entry_t *cont_pkt; | |
285 | ||
286 | /* Allocate additional continuation packets? */ | |
287 | if (avail_dsds == 0) { | |
288 | /* | |
289 | * Five DSDs are available in the Continuation | |
290 | * Type 1 IOCB. | |
291 | */ | |
0d2aa38e | 292 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); |
385d70b4 FT |
293 | cur_dsd = (uint32_t *)cont_pkt->dseg_0_address; |
294 | avail_dsds = 5; | |
1da177e4 | 295 | } |
385d70b4 FT |
296 | |
297 | sle_dma = sg_dma_address(sg); | |
298 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
299 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
300 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
301 | avail_dsds--; | |
1da177e4 LT |
302 | } |
303 | } | |
304 | ||
305 | /** | |
306 | * qla2x00_start_scsi() - Send a SCSI command to the ISP | |
307 | * @sp: command to send to the ISP | |
308 | * | |
cc3ef7bc | 309 | * Returns non-zero if a failure occurred, else zero. |
1da177e4 LT |
310 | */ |
311 | int | |
312 | qla2x00_start_scsi(srb_t *sp) | |
313 | { | |
385d70b4 | 314 | int ret, nseg; |
1da177e4 | 315 | unsigned long flags; |
e315cd28 | 316 | scsi_qla_host_t *vha; |
1da177e4 LT |
317 | struct scsi_cmnd *cmd; |
318 | uint32_t *clr_ptr; | |
319 | uint32_t index; | |
320 | uint32_t handle; | |
321 | cmd_entry_t *cmd_pkt; | |
1da177e4 LT |
322 | uint16_t cnt; |
323 | uint16_t req_cnt; | |
324 | uint16_t tot_dsds; | |
3d71644c | 325 | struct device_reg_2xxx __iomem *reg; |
e315cd28 AC |
326 | struct qla_hw_data *ha; |
327 | struct req_que *req; | |
73208dfd | 328 | struct rsp_que *rsp; |
ff2fc42e | 329 | char tag[2]; |
1da177e4 LT |
330 | |
331 | /* Setup device pointers. */ | |
332 | ret = 0; | |
444786d7 | 333 | vha = sp->fcport->vha; |
e315cd28 | 334 | ha = vha->hw; |
3d71644c | 335 | reg = &ha->iobase->isp; |
1da177e4 | 336 | cmd = sp->cmd; |
73208dfd AC |
337 | req = ha->req_q_map[0]; |
338 | rsp = ha->rsp_q_map[0]; | |
83021920 AV |
339 | /* So we know we haven't pci_map'ed anything yet */ |
340 | tot_dsds = 0; | |
1da177e4 LT |
341 | |
342 | /* Send marker if required */ | |
e315cd28 | 343 | if (vha->marker_needed != 0) { |
7c3df132 SK |
344 | if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != |
345 | QLA_SUCCESS) { | |
1da177e4 | 346 | return (QLA_FUNCTION_FAILED); |
7c3df132 | 347 | } |
e315cd28 | 348 | vha->marker_needed = 0; |
1da177e4 LT |
349 | } |
350 | ||
351 | /* Acquire ring specific lock */ | |
c9c5ced9 | 352 | spin_lock_irqsave(&ha->hardware_lock, flags); |
1da177e4 LT |
353 | |
354 | /* Check for room in outstanding command list. */ | |
e315cd28 | 355 | handle = req->current_outstanding_cmd; |
1da177e4 LT |
356 | for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { |
357 | handle++; | |
358 | if (handle == MAX_OUTSTANDING_COMMANDS) | |
359 | handle = 1; | |
e315cd28 | 360 | if (!req->outstanding_cmds[handle]) |
1da177e4 LT |
361 | break; |
362 | } | |
363 | if (index == MAX_OUTSTANDING_COMMANDS) | |
364 | goto queuing_error; | |
365 | ||
83021920 | 366 | /* Map the sg table so we have an accurate count of sg entries needed */ |
2c3dfe3f SJ |
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 | ||
385d70b4 | 375 | tot_dsds = nseg; |
83021920 | 376 | |
1da177e4 | 377 | /* Calculate the number of request entries needed. */ |
fd34f556 | 378 | req_cnt = ha->isp_ops->calc_req_entries(tot_dsds); |
e315cd28 | 379 | if (req->cnt < (req_cnt + 2)) { |
1da177e4 | 380 | cnt = RD_REG_WORD_RELAXED(ISP_REQ_Q_OUT(ha, reg)); |
e315cd28 AC |
381 | if (req->ring_index < cnt) |
382 | req->cnt = cnt - req->ring_index; | |
1da177e4 | 383 | else |
e315cd28 AC |
384 | req->cnt = req->length - |
385 | (req->ring_index - cnt); | |
1da177e4 | 386 | } |
e315cd28 | 387 | if (req->cnt < (req_cnt + 2)) |
1da177e4 LT |
388 | goto queuing_error; |
389 | ||
1da177e4 | 390 | /* Build command packet */ |
e315cd28 AC |
391 | req->current_outstanding_cmd = handle; |
392 | req->outstanding_cmds[handle] = sp; | |
cf53b069 | 393 | sp->handle = handle; |
1da177e4 | 394 | sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
e315cd28 | 395 | req->cnt -= req_cnt; |
1da177e4 | 396 | |
e315cd28 | 397 | cmd_pkt = (cmd_entry_t *)req->ring_ptr; |
1da177e4 LT |
398 | cmd_pkt->handle = handle; |
399 | /* Zero out remaining portion of packet. */ | |
400 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
401 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
402 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
403 | ||
bdf79621 AV |
404 | /* Set target ID and LUN number*/ |
405 | SET_TARGET_ID(ha, cmd_pkt->target, sp->fcport->loop_id); | |
406 | cmd_pkt->lun = cpu_to_le16(sp->cmd->device->lun); | |
1da177e4 LT |
407 | |
408 | /* Update tagged queuing modifier */ | |
ff2fc42e AV |
409 | if (scsi_populate_tag_msg(cmd, tag)) { |
410 | switch (tag[0]) { | |
411 | case HEAD_OF_QUEUE_TAG: | |
412 | cmd_pkt->control_flags = | |
413 | __constant_cpu_to_le16(CF_HEAD_TAG); | |
414 | break; | |
415 | case ORDERED_QUEUE_TAG: | |
416 | cmd_pkt->control_flags = | |
417 | __constant_cpu_to_le16(CF_ORDERED_TAG); | |
418 | break; | |
419 | default: | |
420 | cmd_pkt->control_flags = | |
421 | __constant_cpu_to_le16(CF_SIMPLE_TAG); | |
422 | break; | |
423 | } | |
424 | } | |
1da177e4 | 425 | |
1da177e4 LT |
426 | /* Load SCSI command packet. */ |
427 | memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len); | |
385d70b4 | 428 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); |
1da177e4 LT |
429 | |
430 | /* Build IOCB segments */ | |
fd34f556 | 431 | ha->isp_ops->build_iocbs(sp, cmd_pkt, tot_dsds); |
1da177e4 LT |
432 | |
433 | /* Set total data segment count. */ | |
434 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
435 | wmb(); | |
436 | ||
437 | /* Adjust ring index. */ | |
e315cd28 AC |
438 | req->ring_index++; |
439 | if (req->ring_index == req->length) { | |
440 | req->ring_index = 0; | |
441 | req->ring_ptr = req->ring; | |
1da177e4 | 442 | } else |
e315cd28 | 443 | req->ring_ptr++; |
1da177e4 | 444 | |
1da177e4 | 445 | sp->flags |= SRB_DMA_VALID; |
1da177e4 LT |
446 | |
447 | /* Set chip new ring index. */ | |
e315cd28 | 448 | WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), req->ring_index); |
1da177e4 LT |
449 | RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, reg)); /* PCI Posting. */ |
450 | ||
4fdfefe5 | 451 | /* Manage unprocessed RIO/ZIO commands in response queue. */ |
e315cd28 | 452 | if (vha->flags.process_response_queue && |
73208dfd AC |
453 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) |
454 | qla2x00_process_response_queue(rsp); | |
4fdfefe5 | 455 | |
c9c5ced9 | 456 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
1da177e4 LT |
457 | return (QLA_SUCCESS); |
458 | ||
459 | queuing_error: | |
385d70b4 FT |
460 | if (tot_dsds) |
461 | scsi_dma_unmap(cmd); | |
462 | ||
c9c5ced9 | 463 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
1da177e4 LT |
464 | |
465 | return (QLA_FUNCTION_FAILED); | |
466 | } | |
467 | ||
5162cf0c GM |
468 | /** |
469 | * qla2x00_start_iocbs() - Execute the IOCB command | |
470 | */ | |
471 | static void | |
472 | qla2x00_start_iocbs(struct scsi_qla_host *vha, struct req_que *req) | |
473 | { | |
474 | struct qla_hw_data *ha = vha->hw; | |
475 | device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id); | |
476 | struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp; | |
477 | ||
478 | if (IS_QLA82XX(ha)) { | |
479 | qla82xx_start_iocbs(vha); | |
480 | } else { | |
481 | /* Adjust ring index. */ | |
482 | req->ring_index++; | |
483 | if (req->ring_index == req->length) { | |
484 | req->ring_index = 0; | |
485 | req->ring_ptr = req->ring; | |
486 | } else | |
487 | req->ring_ptr++; | |
488 | ||
489 | /* Set chip new ring index. */ | |
490 | if (ha->mqenable) { | |
491 | WRT_REG_DWORD(®->isp25mq.req_q_in, req->ring_index); | |
492 | RD_REG_DWORD(&ioreg->hccr); | |
493 | } else if (IS_FWI2_CAPABLE(ha)) { | |
494 | WRT_REG_DWORD(®->isp24.req_q_in, req->ring_index); | |
495 | RD_REG_DWORD_RELAXED(®->isp24.req_q_in); | |
496 | } else { | |
497 | WRT_REG_WORD(ISP_REQ_Q_IN(ha, ®->isp), | |
498 | req->ring_index); | |
499 | RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, ®->isp)); | |
500 | } | |
501 | } | |
502 | } | |
503 | ||
1da177e4 LT |
504 | /** |
505 | * qla2x00_marker() - Send a marker IOCB to the firmware. | |
506 | * @ha: HA context | |
507 | * @loop_id: loop ID | |
508 | * @lun: LUN | |
509 | * @type: marker modifier | |
510 | * | |
511 | * Can be called from both normal and interrupt context. | |
512 | * | |
cc3ef7bc | 513 | * Returns non-zero if a failure occurred, else zero. |
1da177e4 | 514 | */ |
3dbe756a | 515 | static int |
73208dfd AC |
516 | __qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req, |
517 | struct rsp_que *rsp, uint16_t loop_id, | |
518 | uint16_t lun, uint8_t type) | |
1da177e4 | 519 | { |
2b6c0cee AV |
520 | mrk_entry_t *mrk; |
521 | struct mrk_entry_24xx *mrk24; | |
e315cd28 AC |
522 | struct qla_hw_data *ha = vha->hw; |
523 | scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); | |
1da177e4 | 524 | |
2b6c0cee | 525 | mrk24 = NULL; |
99b8212c | 526 | req = ha->req_q_map[0]; |
d94d10e7 | 527 | mrk = (mrk_entry_t *)qla2x00_alloc_iocbs(vha, 0); |
2b6c0cee | 528 | if (mrk == NULL) { |
7c3df132 SK |
529 | ql_log(ql_log_warn, base_vha, 0x3026, |
530 | "Failed to allocate Marker IOCB.\n"); | |
1da177e4 LT |
531 | |
532 | return (QLA_FUNCTION_FAILED); | |
533 | } | |
534 | ||
2b6c0cee AV |
535 | mrk->entry_type = MARKER_TYPE; |
536 | mrk->modifier = type; | |
1da177e4 | 537 | if (type != MK_SYNC_ALL) { |
e428924c | 538 | if (IS_FWI2_CAPABLE(ha)) { |
2b6c0cee AV |
539 | mrk24 = (struct mrk_entry_24xx *) mrk; |
540 | mrk24->nport_handle = cpu_to_le16(loop_id); | |
541 | mrk24->lun[1] = LSB(lun); | |
542 | mrk24->lun[2] = MSB(lun); | |
b797b6de | 543 | host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun)); |
e315cd28 | 544 | mrk24->vp_index = vha->vp_idx; |
2afa19a9 | 545 | mrk24->handle = MAKE_HANDLE(req->id, mrk24->handle); |
2b6c0cee AV |
546 | } else { |
547 | SET_TARGET_ID(ha, mrk->target, loop_id); | |
548 | mrk->lun = cpu_to_le16(lun); | |
549 | } | |
1da177e4 LT |
550 | } |
551 | wmb(); | |
552 | ||
5162cf0c | 553 | qla2x00_start_iocbs(vha, req); |
1da177e4 LT |
554 | |
555 | return (QLA_SUCCESS); | |
556 | } | |
557 | ||
fa2a1ce5 | 558 | int |
73208dfd AC |
559 | qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req, |
560 | struct rsp_que *rsp, uint16_t loop_id, uint16_t lun, | |
561 | uint8_t type) | |
1da177e4 LT |
562 | { |
563 | int ret; | |
564 | unsigned long flags = 0; | |
565 | ||
73208dfd AC |
566 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); |
567 | ret = __qla2x00_marker(vha, req, rsp, loop_id, lun, type); | |
568 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); | |
1da177e4 LT |
569 | |
570 | return (ret); | |
571 | } | |
572 | ||
1da177e4 | 573 | /** |
5162cf0c GM |
574 | * qla24xx_calc_iocbs() - Determine number of Command Type 3 and |
575 | * Continuation Type 1 IOCBs to allocate. | |
1da177e4 | 576 | * |
5162cf0c GM |
577 | * @dsds: number of data segment decriptors needed |
578 | * | |
579 | * Returns the number of IOCB entries needed to store @dsds. | |
1da177e4 | 580 | */ |
5162cf0c GM |
581 | inline uint16_t |
582 | qla24xx_calc_iocbs(scsi_qla_host_t *vha, uint16_t dsds) | |
1da177e4 | 583 | { |
5162cf0c | 584 | uint16_t iocbs; |
1da177e4 | 585 | |
5162cf0c GM |
586 | iocbs = 1; |
587 | if (dsds > 1) { | |
588 | iocbs += (dsds - 1) / 5; | |
589 | if ((dsds - 1) % 5) | |
590 | iocbs++; | |
591 | } | |
592 | return iocbs; | |
593 | } | |
1da177e4 | 594 | |
5162cf0c GM |
595 | static inline int |
596 | qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt, | |
597 | uint16_t tot_dsds) | |
598 | { | |
599 | uint32_t *cur_dsd = NULL; | |
600 | scsi_qla_host_t *vha; | |
601 | struct qla_hw_data *ha; | |
602 | struct scsi_cmnd *cmd; | |
603 | struct scatterlist *cur_seg; | |
604 | uint32_t *dsd_seg; | |
605 | void *next_dsd; | |
606 | uint8_t avail_dsds; | |
607 | uint8_t first_iocb = 1; | |
608 | uint32_t dsd_list_len; | |
609 | struct dsd_dma *dsd_ptr; | |
610 | struct ct6_dsd *ctx; | |
1da177e4 | 611 | |
5162cf0c | 612 | cmd = sp->cmd; |
a9083016 | 613 | |
5162cf0c GM |
614 | /* Update entry type to indicate Command Type 3 IOCB */ |
615 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
616 | __constant_cpu_to_le32(COMMAND_TYPE_6); | |
617 | ||
618 | /* No data transfer */ | |
619 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { | |
620 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); | |
621 | return 0; | |
622 | } | |
623 | ||
624 | vha = sp->fcport->vha; | |
625 | ha = vha->hw; | |
626 | ||
627 | /* Set transfer direction */ | |
628 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { | |
629 | cmd_pkt->control_flags = | |
630 | __constant_cpu_to_le16(CF_WRITE_DATA); | |
631 | ha->qla_stats.output_bytes += scsi_bufflen(cmd); | |
632 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
633 | cmd_pkt->control_flags = | |
634 | __constant_cpu_to_le16(CF_READ_DATA); | |
635 | ha->qla_stats.input_bytes += scsi_bufflen(cmd); | |
636 | } | |
637 | ||
638 | cur_seg = scsi_sglist(cmd); | |
639 | ctx = sp->ctx; | |
640 | ||
641 | while (tot_dsds) { | |
642 | avail_dsds = (tot_dsds > QLA_DSDS_PER_IOCB) ? | |
643 | QLA_DSDS_PER_IOCB : tot_dsds; | |
644 | tot_dsds -= avail_dsds; | |
645 | dsd_list_len = (avail_dsds + 1) * QLA_DSD_SIZE; | |
646 | ||
647 | dsd_ptr = list_first_entry(&ha->gbl_dsd_list, | |
648 | struct dsd_dma, list); | |
649 | next_dsd = dsd_ptr->dsd_addr; | |
650 | list_del(&dsd_ptr->list); | |
651 | ha->gbl_dsd_avail--; | |
652 | list_add_tail(&dsd_ptr->list, &ctx->dsd_list); | |
653 | ctx->dsd_use_cnt++; | |
654 | ha->gbl_dsd_inuse++; | |
655 | ||
656 | if (first_iocb) { | |
657 | first_iocb = 0; | |
658 | dsd_seg = (uint32_t *)&cmd_pkt->fcp_data_dseg_address; | |
659 | *dsd_seg++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
660 | *dsd_seg++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
661 | cmd_pkt->fcp_data_dseg_len = cpu_to_le32(dsd_list_len); | |
73208dfd | 662 | } else { |
5162cf0c GM |
663 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); |
664 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
665 | *cur_dsd++ = cpu_to_le32(dsd_list_len); | |
666 | } | |
667 | cur_dsd = (uint32_t *)next_dsd; | |
668 | while (avail_dsds) { | |
669 | dma_addr_t sle_dma; | |
670 | ||
671 | sle_dma = sg_dma_address(cur_seg); | |
672 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
673 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
674 | *cur_dsd++ = cpu_to_le32(sg_dma_len(cur_seg)); | |
675 | cur_seg = sg_next(cur_seg); | |
676 | avail_dsds--; | |
73208dfd | 677 | } |
2b6c0cee AV |
678 | } |
679 | ||
5162cf0c GM |
680 | /* Null termination */ |
681 | *cur_dsd++ = 0; | |
682 | *cur_dsd++ = 0; | |
683 | *cur_dsd++ = 0; | |
684 | cmd_pkt->control_flags |= CF_DATA_SEG_DESCR_ENABLE; | |
685 | return 0; | |
2b6c0cee AV |
686 | } |
687 | ||
5162cf0c GM |
688 | /* |
689 | * qla24xx_calc_dsd_lists() - Determine number of DSD list required | |
690 | * for Command Type 6. | |
2b6c0cee AV |
691 | * |
692 | * @dsds: number of data segment decriptors needed | |
693 | * | |
5162cf0c | 694 | * Returns the number of dsd list needed to store @dsds. |
2b6c0cee | 695 | */ |
a9083016 | 696 | inline uint16_t |
5162cf0c | 697 | qla24xx_calc_dsd_lists(uint16_t dsds) |
2b6c0cee | 698 | { |
5162cf0c | 699 | uint16_t dsd_lists = 0; |
2b6c0cee | 700 | |
5162cf0c GM |
701 | dsd_lists = (dsds/QLA_DSDS_PER_IOCB); |
702 | if (dsds % QLA_DSDS_PER_IOCB) | |
703 | dsd_lists++; | |
704 | return dsd_lists; | |
2b6c0cee AV |
705 | } |
706 | ||
5162cf0c | 707 | |
2b6c0cee AV |
708 | /** |
709 | * qla24xx_build_scsi_iocbs() - Build IOCB command utilizing Command Type 7 | |
710 | * IOCB types. | |
711 | * | |
712 | * @sp: SRB command to process | |
713 | * @cmd_pkt: Command type 3 IOCB | |
714 | * @tot_dsds: Total number of segments to transfer | |
715 | */ | |
a9083016 | 716 | inline void |
2b6c0cee AV |
717 | qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt, |
718 | uint16_t tot_dsds) | |
719 | { | |
720 | uint16_t avail_dsds; | |
721 | uint32_t *cur_dsd; | |
e315cd28 | 722 | scsi_qla_host_t *vha; |
2b6c0cee | 723 | struct scsi_cmnd *cmd; |
385d70b4 FT |
724 | struct scatterlist *sg; |
725 | int i; | |
73208dfd | 726 | struct req_que *req; |
2b6c0cee AV |
727 | |
728 | cmd = sp->cmd; | |
729 | ||
730 | /* Update entry type to indicate Command Type 3 IOCB */ | |
731 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
732 | __constant_cpu_to_le32(COMMAND_TYPE_7); | |
733 | ||
734 | /* No data transfer */ | |
385d70b4 | 735 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { |
2b6c0cee AV |
736 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
737 | return; | |
738 | } | |
739 | ||
444786d7 | 740 | vha = sp->fcport->vha; |
67c2e93a | 741 | req = vha->req; |
2b6c0cee AV |
742 | |
743 | /* Set transfer direction */ | |
49fd462a | 744 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { |
2b6c0cee AV |
745 | cmd_pkt->task_mgmt_flags = |
746 | __constant_cpu_to_le16(TMF_WRITE_DATA); | |
e315cd28 | 747 | sp->fcport->vha->hw->qla_stats.output_bytes += |
49fd462a HZ |
748 | scsi_bufflen(sp->cmd); |
749 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
2b6c0cee AV |
750 | cmd_pkt->task_mgmt_flags = |
751 | __constant_cpu_to_le16(TMF_READ_DATA); | |
e315cd28 | 752 | sp->fcport->vha->hw->qla_stats.input_bytes += |
49fd462a HZ |
753 | scsi_bufflen(sp->cmd); |
754 | } | |
2b6c0cee AV |
755 | |
756 | /* One DSD is available in the Command Type 3 IOCB */ | |
757 | avail_dsds = 1; | |
758 | cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address; | |
759 | ||
760 | /* Load data segments */ | |
385d70b4 FT |
761 | |
762 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { | |
763 | dma_addr_t sle_dma; | |
764 | cont_a64_entry_t *cont_pkt; | |
765 | ||
766 | /* Allocate additional continuation packets? */ | |
767 | if (avail_dsds == 0) { | |
768 | /* | |
769 | * Five DSDs are available in the Continuation | |
770 | * Type 1 IOCB. | |
771 | */ | |
0d2aa38e | 772 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); |
385d70b4 FT |
773 | cur_dsd = (uint32_t *)cont_pkt->dseg_0_address; |
774 | avail_dsds = 5; | |
2b6c0cee | 775 | } |
385d70b4 FT |
776 | |
777 | sle_dma = sg_dma_address(sg); | |
778 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
779 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
780 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
781 | avail_dsds--; | |
2b6c0cee AV |
782 | } |
783 | } | |
784 | ||
bad75002 AE |
785 | struct fw_dif_context { |
786 | uint32_t ref_tag; | |
787 | uint16_t app_tag; | |
788 | uint8_t ref_tag_mask[4]; /* Validation/Replacement Mask*/ | |
789 | uint8_t app_tag_mask[2]; /* Validation/Replacement Mask*/ | |
790 | }; | |
791 | ||
792 | /* | |
793 | * qla24xx_set_t10dif_tags_from_cmd - Extract Ref and App tags from SCSI command | |
794 | * | |
795 | */ | |
796 | static inline void | |
e02587d7 | 797 | qla24xx_set_t10dif_tags(srb_t *sp, struct fw_dif_context *pkt, |
bad75002 AE |
798 | unsigned int protcnt) |
799 | { | |
e02587d7 | 800 | struct scsi_cmnd *cmd = sp->cmd; |
7c3df132 | 801 | scsi_qla_host_t *vha = shost_priv(cmd->device->host); |
bad75002 AE |
802 | |
803 | switch (scsi_get_prot_type(cmd)) { | |
bad75002 | 804 | case SCSI_PROT_DIF_TYPE0: |
8cb2049c AE |
805 | /* |
806 | * No check for ql2xenablehba_err_chk, as it would be an | |
807 | * I/O error if hba tag generation is not done. | |
808 | */ | |
809 | pkt->ref_tag = cpu_to_le32((uint32_t) | |
810 | (0xffffffff & scsi_get_lba(cmd))); | |
e02587d7 AE |
811 | |
812 | if (!qla2x00_hba_err_chk_enabled(sp)) | |
813 | break; | |
814 | ||
8cb2049c AE |
815 | pkt->ref_tag_mask[0] = 0xff; |
816 | pkt->ref_tag_mask[1] = 0xff; | |
817 | pkt->ref_tag_mask[2] = 0xff; | |
818 | pkt->ref_tag_mask[3] = 0xff; | |
bad75002 AE |
819 | break; |
820 | ||
821 | /* | |
822 | * For TYPE 2 protection: 16 bit GUARD + 32 bit REF tag has to | |
823 | * match LBA in CDB + N | |
824 | */ | |
825 | case SCSI_PROT_DIF_TYPE2: | |
e02587d7 AE |
826 | pkt->app_tag = __constant_cpu_to_le16(0); |
827 | pkt->app_tag_mask[0] = 0x0; | |
828 | pkt->app_tag_mask[1] = 0x0; | |
0c470874 AE |
829 | |
830 | pkt->ref_tag = cpu_to_le32((uint32_t) | |
831 | (0xffffffff & scsi_get_lba(cmd))); | |
832 | ||
e02587d7 AE |
833 | if (!qla2x00_hba_err_chk_enabled(sp)) |
834 | break; | |
835 | ||
0c470874 AE |
836 | /* enable ALL bytes of the ref tag */ |
837 | pkt->ref_tag_mask[0] = 0xff; | |
838 | pkt->ref_tag_mask[1] = 0xff; | |
839 | pkt->ref_tag_mask[2] = 0xff; | |
840 | pkt->ref_tag_mask[3] = 0xff; | |
bad75002 AE |
841 | break; |
842 | ||
843 | /* For Type 3 protection: 16 bit GUARD only */ | |
844 | case SCSI_PROT_DIF_TYPE3: | |
845 | pkt->ref_tag_mask[0] = pkt->ref_tag_mask[1] = | |
846 | pkt->ref_tag_mask[2] = pkt->ref_tag_mask[3] = | |
847 | 0x00; | |
848 | break; | |
849 | ||
850 | /* | |
851 | * For TYpe 1 protection: 16 bit GUARD tag, 32 bit REF tag, and | |
852 | * 16 bit app tag. | |
853 | */ | |
854 | case SCSI_PROT_DIF_TYPE1: | |
e02587d7 AE |
855 | pkt->ref_tag = cpu_to_le32((uint32_t) |
856 | (0xffffffff & scsi_get_lba(cmd))); | |
857 | pkt->app_tag = __constant_cpu_to_le16(0); | |
858 | pkt->app_tag_mask[0] = 0x0; | |
859 | pkt->app_tag_mask[1] = 0x0; | |
860 | ||
861 | if (!qla2x00_hba_err_chk_enabled(sp)) | |
bad75002 AE |
862 | break; |
863 | ||
bad75002 AE |
864 | /* enable ALL bytes of the ref tag */ |
865 | pkt->ref_tag_mask[0] = 0xff; | |
866 | pkt->ref_tag_mask[1] = 0xff; | |
867 | pkt->ref_tag_mask[2] = 0xff; | |
868 | pkt->ref_tag_mask[3] = 0xff; | |
869 | break; | |
870 | } | |
871 | ||
7c3df132 SK |
872 | ql_dbg(ql_dbg_io, vha, 0x3009, |
873 | "Setting protection Tags: (BIG) ref tag = 0x%x, app tag = 0x%x, " | |
874 | "prot SG count %d, cmd lba 0x%x, prot_type=%u cmd=%p.\n", | |
875 | pkt->ref_tag, pkt->app_tag, protcnt, (int)scsi_get_lba(cmd), | |
876 | scsi_get_prot_type(cmd), cmd); | |
bad75002 AE |
877 | } |
878 | ||
8cb2049c AE |
879 | struct qla2_sgx { |
880 | dma_addr_t dma_addr; /* OUT */ | |
881 | uint32_t dma_len; /* OUT */ | |
882 | ||
883 | uint32_t tot_bytes; /* IN */ | |
884 | struct scatterlist *cur_sg; /* IN */ | |
885 | ||
886 | /* for book keeping, bzero on initial invocation */ | |
887 | uint32_t bytes_consumed; | |
888 | uint32_t num_bytes; | |
889 | uint32_t tot_partial; | |
890 | ||
891 | /* for debugging */ | |
892 | uint32_t num_sg; | |
893 | srb_t *sp; | |
894 | }; | |
895 | ||
896 | static int | |
897 | qla24xx_get_one_block_sg(uint32_t blk_sz, struct qla2_sgx *sgx, | |
898 | uint32_t *partial) | |
899 | { | |
900 | struct scatterlist *sg; | |
901 | uint32_t cumulative_partial, sg_len; | |
902 | dma_addr_t sg_dma_addr; | |
903 | ||
904 | if (sgx->num_bytes == sgx->tot_bytes) | |
905 | return 0; | |
906 | ||
907 | sg = sgx->cur_sg; | |
908 | cumulative_partial = sgx->tot_partial; | |
909 | ||
910 | sg_dma_addr = sg_dma_address(sg); | |
911 | sg_len = sg_dma_len(sg); | |
912 | ||
913 | sgx->dma_addr = sg_dma_addr + sgx->bytes_consumed; | |
914 | ||
915 | if ((cumulative_partial + (sg_len - sgx->bytes_consumed)) >= blk_sz) { | |
916 | sgx->dma_len = (blk_sz - cumulative_partial); | |
917 | sgx->tot_partial = 0; | |
918 | sgx->num_bytes += blk_sz; | |
919 | *partial = 0; | |
920 | } else { | |
921 | sgx->dma_len = sg_len - sgx->bytes_consumed; | |
922 | sgx->tot_partial += sgx->dma_len; | |
923 | *partial = 1; | |
924 | } | |
925 | ||
926 | sgx->bytes_consumed += sgx->dma_len; | |
927 | ||
928 | if (sg_len == sgx->bytes_consumed) { | |
929 | sg = sg_next(sg); | |
930 | sgx->num_sg++; | |
931 | sgx->cur_sg = sg; | |
932 | sgx->bytes_consumed = 0; | |
933 | } | |
934 | ||
935 | return 1; | |
936 | } | |
937 | ||
938 | static int | |
939 | qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data *ha, srb_t *sp, | |
940 | uint32_t *dsd, uint16_t tot_dsds) | |
941 | { | |
942 | void *next_dsd; | |
943 | uint8_t avail_dsds = 0; | |
944 | uint32_t dsd_list_len; | |
945 | struct dsd_dma *dsd_ptr; | |
946 | struct scatterlist *sg_prot; | |
947 | uint32_t *cur_dsd = dsd; | |
948 | uint16_t used_dsds = tot_dsds; | |
949 | ||
950 | uint32_t prot_int; | |
951 | uint32_t partial; | |
952 | struct qla2_sgx sgx; | |
953 | dma_addr_t sle_dma; | |
954 | uint32_t sle_dma_len, tot_prot_dma_len = 0; | |
955 | struct scsi_cmnd *cmd = sp->cmd; | |
956 | ||
957 | prot_int = cmd->device->sector_size; | |
958 | ||
959 | memset(&sgx, 0, sizeof(struct qla2_sgx)); | |
960 | sgx.tot_bytes = scsi_bufflen(sp->cmd); | |
961 | sgx.cur_sg = scsi_sglist(sp->cmd); | |
962 | sgx.sp = sp; | |
963 | ||
964 | sg_prot = scsi_prot_sglist(sp->cmd); | |
965 | ||
966 | while (qla24xx_get_one_block_sg(prot_int, &sgx, &partial)) { | |
967 | ||
968 | sle_dma = sgx.dma_addr; | |
969 | sle_dma_len = sgx.dma_len; | |
970 | alloc_and_fill: | |
971 | /* Allocate additional continuation packets? */ | |
972 | if (avail_dsds == 0) { | |
973 | avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? | |
974 | QLA_DSDS_PER_IOCB : used_dsds; | |
975 | dsd_list_len = (avail_dsds + 1) * 12; | |
976 | used_dsds -= avail_dsds; | |
977 | ||
978 | /* allocate tracking DS */ | |
979 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
980 | if (!dsd_ptr) | |
981 | return 1; | |
982 | ||
983 | /* allocate new list */ | |
984 | dsd_ptr->dsd_addr = next_dsd = | |
985 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, | |
986 | &dsd_ptr->dsd_list_dma); | |
987 | ||
988 | if (!next_dsd) { | |
989 | /* | |
990 | * Need to cleanup only this dsd_ptr, rest | |
991 | * will be done by sp_free_dma() | |
992 | */ | |
993 | kfree(dsd_ptr); | |
994 | return 1; | |
995 | } | |
996 | ||
997 | list_add_tail(&dsd_ptr->list, | |
998 | &((struct crc_context *)sp->ctx)->dsd_list); | |
999 | ||
1000 | sp->flags |= SRB_CRC_CTX_DSD_VALID; | |
1001 | ||
1002 | /* add new list to cmd iocb or last list */ | |
1003 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
1004 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
1005 | *cur_dsd++ = dsd_list_len; | |
1006 | cur_dsd = (uint32_t *)next_dsd; | |
1007 | } | |
1008 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
1009 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
1010 | *cur_dsd++ = cpu_to_le32(sle_dma_len); | |
1011 | avail_dsds--; | |
1012 | ||
1013 | if (partial == 0) { | |
1014 | /* Got a full protection interval */ | |
1015 | sle_dma = sg_dma_address(sg_prot) + tot_prot_dma_len; | |
1016 | sle_dma_len = 8; | |
bad75002 | 1017 | |
8cb2049c AE |
1018 | tot_prot_dma_len += sle_dma_len; |
1019 | if (tot_prot_dma_len == sg_dma_len(sg_prot)) { | |
1020 | tot_prot_dma_len = 0; | |
1021 | sg_prot = sg_next(sg_prot); | |
1022 | } | |
1023 | ||
1024 | partial = 1; /* So as to not re-enter this block */ | |
1025 | goto alloc_and_fill; | |
1026 | } | |
1027 | } | |
1028 | /* Null termination */ | |
1029 | *cur_dsd++ = 0; | |
1030 | *cur_dsd++ = 0; | |
1031 | *cur_dsd++ = 0; | |
1032 | return 0; | |
1033 | } | |
5162cf0c | 1034 | |
bad75002 AE |
1035 | static int |
1036 | qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, uint32_t *dsd, | |
1037 | uint16_t tot_dsds) | |
1038 | { | |
1039 | void *next_dsd; | |
1040 | uint8_t avail_dsds = 0; | |
1041 | uint32_t dsd_list_len; | |
1042 | struct dsd_dma *dsd_ptr; | |
1043 | struct scatterlist *sg; | |
1044 | uint32_t *cur_dsd = dsd; | |
1045 | int i; | |
1046 | uint16_t used_dsds = tot_dsds; | |
7c3df132 | 1047 | scsi_qla_host_t *vha = shost_priv(sp->cmd->device->host); |
bad75002 AE |
1048 | |
1049 | uint8_t *cp; | |
1050 | ||
1051 | scsi_for_each_sg(sp->cmd, sg, tot_dsds, i) { | |
1052 | dma_addr_t sle_dma; | |
1053 | ||
1054 | /* Allocate additional continuation packets? */ | |
1055 | if (avail_dsds == 0) { | |
1056 | avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? | |
1057 | QLA_DSDS_PER_IOCB : used_dsds; | |
1058 | dsd_list_len = (avail_dsds + 1) * 12; | |
1059 | used_dsds -= avail_dsds; | |
1060 | ||
1061 | /* allocate tracking DS */ | |
1062 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
1063 | if (!dsd_ptr) | |
1064 | return 1; | |
1065 | ||
1066 | /* allocate new list */ | |
1067 | dsd_ptr->dsd_addr = next_dsd = | |
1068 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, | |
1069 | &dsd_ptr->dsd_list_dma); | |
1070 | ||
1071 | if (!next_dsd) { | |
1072 | /* | |
1073 | * Need to cleanup only this dsd_ptr, rest | |
1074 | * will be done by sp_free_dma() | |
1075 | */ | |
1076 | kfree(dsd_ptr); | |
1077 | return 1; | |
1078 | } | |
1079 | ||
1080 | list_add_tail(&dsd_ptr->list, | |
1081 | &((struct crc_context *)sp->ctx)->dsd_list); | |
1082 | ||
1083 | sp->flags |= SRB_CRC_CTX_DSD_VALID; | |
1084 | ||
1085 | /* add new list to cmd iocb or last list */ | |
1086 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
1087 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
1088 | *cur_dsd++ = dsd_list_len; | |
1089 | cur_dsd = (uint32_t *)next_dsd; | |
1090 | } | |
1091 | sle_dma = sg_dma_address(sg); | |
7c3df132 SK |
1092 | ql_dbg(ql_dbg_io, vha, 0x300a, |
1093 | "sg entry %d - addr=0x%x 0x%x, " "len=%d for cmd=%p.\n", | |
d8424f68 | 1094 | i, LSD(sle_dma), MSD(sle_dma), sg_dma_len(sg), |
7c3df132 | 1095 | sp->cmd); |
bad75002 AE |
1096 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); |
1097 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
1098 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
1099 | avail_dsds--; | |
1100 | ||
1101 | if (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_PASS) { | |
1102 | cp = page_address(sg_page(sg)) + sg->offset; | |
7c3df132 SK |
1103 | ql_dbg(ql_dbg_io, vha, 0x300b, |
1104 | "User data buffer=%p for cmd=%p.\n", cp, sp->cmd); | |
bad75002 AE |
1105 | } |
1106 | } | |
1107 | /* Null termination */ | |
1108 | *cur_dsd++ = 0; | |
1109 | *cur_dsd++ = 0; | |
1110 | *cur_dsd++ = 0; | |
1111 | return 0; | |
1112 | } | |
1113 | ||
1114 | static int | |
1115 | qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp, | |
1116 | uint32_t *dsd, | |
1117 | uint16_t tot_dsds) | |
1118 | { | |
1119 | void *next_dsd; | |
1120 | uint8_t avail_dsds = 0; | |
1121 | uint32_t dsd_list_len; | |
1122 | struct dsd_dma *dsd_ptr; | |
1123 | struct scatterlist *sg; | |
1124 | int i; | |
1125 | struct scsi_cmnd *cmd; | |
1126 | uint32_t *cur_dsd = dsd; | |
1127 | uint16_t used_dsds = tot_dsds; | |
7c3df132 | 1128 | scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); |
bad75002 AE |
1129 | uint8_t *cp; |
1130 | ||
1131 | ||
1132 | cmd = sp->cmd; | |
1133 | scsi_for_each_prot_sg(cmd, sg, tot_dsds, i) { | |
1134 | dma_addr_t sle_dma; | |
1135 | ||
1136 | /* Allocate additional continuation packets? */ | |
1137 | if (avail_dsds == 0) { | |
1138 | avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? | |
1139 | QLA_DSDS_PER_IOCB : used_dsds; | |
1140 | dsd_list_len = (avail_dsds + 1) * 12; | |
1141 | used_dsds -= avail_dsds; | |
1142 | ||
1143 | /* allocate tracking DS */ | |
1144 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
1145 | if (!dsd_ptr) | |
1146 | return 1; | |
1147 | ||
1148 | /* allocate new list */ | |
1149 | dsd_ptr->dsd_addr = next_dsd = | |
1150 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, | |
1151 | &dsd_ptr->dsd_list_dma); | |
1152 | ||
1153 | if (!next_dsd) { | |
1154 | /* | |
1155 | * Need to cleanup only this dsd_ptr, rest | |
1156 | * will be done by sp_free_dma() | |
1157 | */ | |
1158 | kfree(dsd_ptr); | |
1159 | return 1; | |
1160 | } | |
1161 | ||
1162 | list_add_tail(&dsd_ptr->list, | |
1163 | &((struct crc_context *)sp->ctx)->dsd_list); | |
1164 | ||
1165 | sp->flags |= SRB_CRC_CTX_DSD_VALID; | |
1166 | ||
1167 | /* add new list to cmd iocb or last list */ | |
1168 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
1169 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
1170 | *cur_dsd++ = dsd_list_len; | |
1171 | cur_dsd = (uint32_t *)next_dsd; | |
1172 | } | |
1173 | sle_dma = sg_dma_address(sg); | |
1174 | if (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_PASS) { | |
7c3df132 SK |
1175 | ql_dbg(ql_dbg_io, vha, 0x3027, |
1176 | "%s(): %p, sg_entry %d - " | |
1177 | "addr=0x%x0x%x, len=%d.\n", | |
1178 | __func__, cur_dsd, i, | |
1179 | LSD(sle_dma), MSD(sle_dma), sg_dma_len(sg)); | |
bad75002 AE |
1180 | } |
1181 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
1182 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
1183 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
1184 | ||
1185 | if (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_PASS) { | |
1186 | cp = page_address(sg_page(sg)) + sg->offset; | |
7c3df132 SK |
1187 | ql_dbg(ql_dbg_io, vha, 0x3028, |
1188 | "%s(): Protection Data buffer = %p.\n", __func__, | |
1189 | cp); | |
bad75002 AE |
1190 | } |
1191 | avail_dsds--; | |
1192 | } | |
1193 | /* Null termination */ | |
1194 | *cur_dsd++ = 0; | |
1195 | *cur_dsd++ = 0; | |
1196 | *cur_dsd++ = 0; | |
1197 | return 0; | |
1198 | } | |
1199 | ||
1200 | /** | |
1201 | * qla24xx_build_scsi_crc_2_iocbs() - Build IOCB command utilizing Command | |
1202 | * Type 6 IOCB types. | |
1203 | * | |
1204 | * @sp: SRB command to process | |
1205 | * @cmd_pkt: Command type 3 IOCB | |
1206 | * @tot_dsds: Total number of segments to transfer | |
1207 | */ | |
1208 | static inline int | |
1209 | qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt, | |
1210 | uint16_t tot_dsds, uint16_t tot_prot_dsds, uint16_t fw_prot_opts) | |
1211 | { | |
1212 | uint32_t *cur_dsd, *fcp_dl; | |
1213 | scsi_qla_host_t *vha; | |
1214 | struct scsi_cmnd *cmd; | |
1215 | struct scatterlist *cur_seg; | |
1216 | int sgc; | |
8cb2049c | 1217 | uint32_t total_bytes = 0; |
bad75002 AE |
1218 | uint32_t data_bytes; |
1219 | uint32_t dif_bytes; | |
1220 | uint8_t bundling = 1; | |
1221 | uint16_t blk_size; | |
1222 | uint8_t *clr_ptr; | |
1223 | struct crc_context *crc_ctx_pkt = NULL; | |
1224 | struct qla_hw_data *ha; | |
1225 | uint8_t additional_fcpcdb_len; | |
1226 | uint16_t fcp_cmnd_len; | |
1227 | struct fcp_cmnd *fcp_cmnd; | |
1228 | dma_addr_t crc_ctx_dma; | |
ff2fc42e | 1229 | char tag[2]; |
bad75002 AE |
1230 | |
1231 | cmd = sp->cmd; | |
1232 | ||
1233 | sgc = 0; | |
1234 | /* Update entry type to indicate Command Type CRC_2 IOCB */ | |
1235 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
1236 | __constant_cpu_to_le32(COMMAND_TYPE_CRC_2); | |
1237 | ||
7c3df132 SK |
1238 | vha = sp->fcport->vha; |
1239 | ha = vha->hw; | |
1240 | ||
bad75002 AE |
1241 | /* No data transfer */ |
1242 | data_bytes = scsi_bufflen(cmd); | |
1243 | if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { | |
bad75002 AE |
1244 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
1245 | return QLA_SUCCESS; | |
1246 | } | |
1247 | ||
bad75002 AE |
1248 | cmd_pkt->vp_index = sp->fcport->vp_idx; |
1249 | ||
1250 | /* Set transfer direction */ | |
1251 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { | |
1252 | cmd_pkt->control_flags = | |
1253 | __constant_cpu_to_le16(CF_WRITE_DATA); | |
1254 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
1255 | cmd_pkt->control_flags = | |
1256 | __constant_cpu_to_le16(CF_READ_DATA); | |
1257 | } | |
1258 | ||
8cb2049c AE |
1259 | if ((scsi_get_prot_op(sp->cmd) == SCSI_PROT_READ_INSERT) || |
1260 | (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_STRIP) || | |
1261 | (scsi_get_prot_op(sp->cmd) == SCSI_PROT_READ_STRIP) || | |
1262 | (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_INSERT)) | |
bad75002 AE |
1263 | bundling = 0; |
1264 | ||
1265 | /* Allocate CRC context from global pool */ | |
1266 | crc_ctx_pkt = sp->ctx = dma_pool_alloc(ha->dl_dma_pool, | |
1267 | GFP_ATOMIC, &crc_ctx_dma); | |
1268 | ||
1269 | if (!crc_ctx_pkt) | |
1270 | goto crc_queuing_error; | |
1271 | ||
1272 | /* Zero out CTX area. */ | |
1273 | clr_ptr = (uint8_t *)crc_ctx_pkt; | |
1274 | memset(clr_ptr, 0, sizeof(*crc_ctx_pkt)); | |
1275 | ||
1276 | crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma; | |
1277 | ||
1278 | sp->flags |= SRB_CRC_CTX_DMA_VALID; | |
1279 | ||
1280 | /* Set handle */ | |
1281 | crc_ctx_pkt->handle = cmd_pkt->handle; | |
1282 | ||
1283 | INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list); | |
1284 | ||
e02587d7 | 1285 | qla24xx_set_t10dif_tags(sp, (struct fw_dif_context *) |
bad75002 AE |
1286 | &crc_ctx_pkt->ref_tag, tot_prot_dsds); |
1287 | ||
1288 | cmd_pkt->crc_context_address[0] = cpu_to_le32(LSD(crc_ctx_dma)); | |
1289 | cmd_pkt->crc_context_address[1] = cpu_to_le32(MSD(crc_ctx_dma)); | |
1290 | cmd_pkt->crc_context_len = CRC_CONTEXT_LEN_FW; | |
1291 | ||
1292 | /* Determine SCSI command length -- align to 4 byte boundary */ | |
1293 | if (cmd->cmd_len > 16) { | |
bad75002 AE |
1294 | additional_fcpcdb_len = cmd->cmd_len - 16; |
1295 | if ((cmd->cmd_len % 4) != 0) { | |
1296 | /* SCSI cmd > 16 bytes must be multiple of 4 */ | |
1297 | goto crc_queuing_error; | |
1298 | } | |
1299 | fcp_cmnd_len = 12 + cmd->cmd_len + 4; | |
1300 | } else { | |
1301 | additional_fcpcdb_len = 0; | |
1302 | fcp_cmnd_len = 12 + 16 + 4; | |
1303 | } | |
1304 | ||
1305 | fcp_cmnd = &crc_ctx_pkt->fcp_cmnd; | |
1306 | ||
1307 | fcp_cmnd->additional_cdb_len = additional_fcpcdb_len; | |
1308 | if (cmd->sc_data_direction == DMA_TO_DEVICE) | |
1309 | fcp_cmnd->additional_cdb_len |= 1; | |
1310 | else if (cmd->sc_data_direction == DMA_FROM_DEVICE) | |
1311 | fcp_cmnd->additional_cdb_len |= 2; | |
1312 | ||
1313 | int_to_scsilun(sp->cmd->device->lun, &fcp_cmnd->lun); | |
1314 | memcpy(fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); | |
1315 | cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(fcp_cmnd_len); | |
1316 | cmd_pkt->fcp_cmnd_dseg_address[0] = cpu_to_le32( | |
1317 | LSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF)); | |
1318 | cmd_pkt->fcp_cmnd_dseg_address[1] = cpu_to_le32( | |
1319 | MSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF)); | |
65155b37 | 1320 | fcp_cmnd->task_management = 0; |
bad75002 | 1321 | |
ff2fc42e AV |
1322 | /* |
1323 | * Update tagged queuing modifier if using command tag queuing | |
1324 | */ | |
1325 | if (scsi_populate_tag_msg(cmd, tag)) { | |
1326 | switch (tag[0]) { | |
1327 | case HEAD_OF_QUEUE_TAG: | |
1328 | fcp_cmnd->task_attribute = TSK_HEAD_OF_QUEUE; | |
1329 | break; | |
1330 | case ORDERED_QUEUE_TAG: | |
1331 | fcp_cmnd->task_attribute = TSK_ORDERED; | |
1332 | break; | |
1333 | default: | |
1334 | fcp_cmnd->task_attribute = 0; | |
1335 | break; | |
1336 | } | |
1337 | } else { | |
1338 | fcp_cmnd->task_attribute = 0; | |
1339 | } | |
1340 | ||
bad75002 AE |
1341 | cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */ |
1342 | ||
bad75002 | 1343 | /* Compute dif len and adjust data len to incude protection */ |
bad75002 AE |
1344 | dif_bytes = 0; |
1345 | blk_size = cmd->device->sector_size; | |
8cb2049c AE |
1346 | dif_bytes = (data_bytes / blk_size) * 8; |
1347 | ||
1348 | switch (scsi_get_prot_op(sp->cmd)) { | |
1349 | case SCSI_PROT_READ_INSERT: | |
1350 | case SCSI_PROT_WRITE_STRIP: | |
1351 | total_bytes = data_bytes; | |
1352 | data_bytes += dif_bytes; | |
1353 | break; | |
1354 | ||
1355 | case SCSI_PROT_READ_STRIP: | |
1356 | case SCSI_PROT_WRITE_INSERT: | |
1357 | case SCSI_PROT_READ_PASS: | |
1358 | case SCSI_PROT_WRITE_PASS: | |
1359 | total_bytes = data_bytes + dif_bytes; | |
1360 | break; | |
1361 | default: | |
1362 | BUG(); | |
bad75002 AE |
1363 | } |
1364 | ||
e02587d7 | 1365 | if (!qla2x00_hba_err_chk_enabled(sp)) |
bad75002 AE |
1366 | fw_prot_opts |= 0x10; /* Disable Guard tag checking */ |
1367 | ||
1368 | if (!bundling) { | |
1369 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.nobundling.data_address; | |
1370 | } else { | |
1371 | /* | |
1372 | * Configure Bundling if we need to fetch interlaving | |
1373 | * protection PCI accesses | |
1374 | */ | |
1375 | fw_prot_opts |= PO_ENABLE_DIF_BUNDLING; | |
1376 | crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes); | |
1377 | crc_ctx_pkt->u.bundling.dseg_count = cpu_to_le16(tot_dsds - | |
1378 | tot_prot_dsds); | |
1379 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.data_address; | |
1380 | } | |
1381 | ||
1382 | /* Finish the common fields of CRC pkt */ | |
1383 | crc_ctx_pkt->blk_size = cpu_to_le16(blk_size); | |
1384 | crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts); | |
1385 | crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes); | |
1386 | crc_ctx_pkt->guard_seed = __constant_cpu_to_le16(0); | |
1387 | /* Fibre channel byte count */ | |
1388 | cmd_pkt->byte_count = cpu_to_le32(total_bytes); | |
1389 | fcp_dl = (uint32_t *)(crc_ctx_pkt->fcp_cmnd.cdb + 16 + | |
1390 | additional_fcpcdb_len); | |
1391 | *fcp_dl = htonl(total_bytes); | |
1392 | ||
0c470874 | 1393 | if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { |
0c470874 AE |
1394 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
1395 | return QLA_SUCCESS; | |
1396 | } | |
bad75002 AE |
1397 | /* Walks data segments */ |
1398 | ||
1399 | cmd_pkt->control_flags |= | |
1400 | __constant_cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE); | |
8cb2049c AE |
1401 | |
1402 | if (!bundling && tot_prot_dsds) { | |
1403 | if (qla24xx_walk_and_build_sglist_no_difb(ha, sp, | |
1404 | cur_dsd, tot_dsds)) | |
1405 | goto crc_queuing_error; | |
1406 | } else if (qla24xx_walk_and_build_sglist(ha, sp, cur_dsd, | |
bad75002 AE |
1407 | (tot_dsds - tot_prot_dsds))) |
1408 | goto crc_queuing_error; | |
1409 | ||
1410 | if (bundling && tot_prot_dsds) { | |
1411 | /* Walks dif segments */ | |
1412 | cur_seg = scsi_prot_sglist(cmd); | |
1413 | cmd_pkt->control_flags |= | |
1414 | __constant_cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE); | |
1415 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.dif_address; | |
1416 | if (qla24xx_walk_and_build_prot_sglist(ha, sp, cur_dsd, | |
1417 | tot_prot_dsds)) | |
1418 | goto crc_queuing_error; | |
1419 | } | |
1420 | return QLA_SUCCESS; | |
1421 | ||
1422 | crc_queuing_error: | |
bad75002 AE |
1423 | /* Cleanup will be performed by the caller */ |
1424 | ||
1425 | return QLA_FUNCTION_FAILED; | |
1426 | } | |
2b6c0cee AV |
1427 | |
1428 | /** | |
1429 | * qla24xx_start_scsi() - Send a SCSI command to the ISP | |
1430 | * @sp: command to send to the ISP | |
1431 | * | |
cc3ef7bc | 1432 | * Returns non-zero if a failure occurred, else zero. |
2b6c0cee AV |
1433 | */ |
1434 | int | |
1435 | qla24xx_start_scsi(srb_t *sp) | |
1436 | { | |
385d70b4 | 1437 | int ret, nseg; |
2b6c0cee | 1438 | unsigned long flags; |
2b6c0cee AV |
1439 | uint32_t *clr_ptr; |
1440 | uint32_t index; | |
1441 | uint32_t handle; | |
1442 | struct cmd_type_7 *cmd_pkt; | |
2b6c0cee AV |
1443 | uint16_t cnt; |
1444 | uint16_t req_cnt; | |
1445 | uint16_t tot_dsds; | |
73208dfd AC |
1446 | struct req_que *req = NULL; |
1447 | struct rsp_que *rsp = NULL; | |
1448 | struct scsi_cmnd *cmd = sp->cmd; | |
444786d7 | 1449 | struct scsi_qla_host *vha = sp->fcport->vha; |
73208dfd | 1450 | struct qla_hw_data *ha = vha->hw; |
ff2fc42e | 1451 | char tag[2]; |
2b6c0cee AV |
1452 | |
1453 | /* Setup device pointers. */ | |
1454 | ret = 0; | |
73208dfd | 1455 | |
59e0b8b0 AC |
1456 | qla25xx_set_que(sp, &rsp); |
1457 | req = vha->req; | |
73208dfd | 1458 | |
2b6c0cee AV |
1459 | /* So we know we haven't pci_map'ed anything yet */ |
1460 | tot_dsds = 0; | |
1461 | ||
1462 | /* Send marker if required */ | |
e315cd28 | 1463 | if (vha->marker_needed != 0) { |
7c3df132 SK |
1464 | if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != |
1465 | QLA_SUCCESS) | |
2b6c0cee | 1466 | return QLA_FUNCTION_FAILED; |
e315cd28 | 1467 | vha->marker_needed = 0; |
2b6c0cee AV |
1468 | } |
1469 | ||
1470 | /* Acquire ring specific lock */ | |
e315cd28 | 1471 | spin_lock_irqsave(&ha->hardware_lock, flags); |
2b6c0cee AV |
1472 | |
1473 | /* Check for room in outstanding command list. */ | |
e315cd28 | 1474 | handle = req->current_outstanding_cmd; |
2b6c0cee AV |
1475 | for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { |
1476 | handle++; | |
1477 | if (handle == MAX_OUTSTANDING_COMMANDS) | |
1478 | handle = 1; | |
e315cd28 | 1479 | if (!req->outstanding_cmds[handle]) |
2b6c0cee AV |
1480 | break; |
1481 | } | |
7c3df132 | 1482 | if (index == MAX_OUTSTANDING_COMMANDS) { |
2b6c0cee | 1483 | goto queuing_error; |
7c3df132 | 1484 | } |
2b6c0cee AV |
1485 | |
1486 | /* Map the sg table so we have an accurate count of sg entries needed */ | |
2c3dfe3f SJ |
1487 | if (scsi_sg_count(cmd)) { |
1488 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
1489 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
1490 | if (unlikely(!nseg)) | |
2b6c0cee | 1491 | goto queuing_error; |
2c3dfe3f SJ |
1492 | } else |
1493 | nseg = 0; | |
1494 | ||
385d70b4 | 1495 | tot_dsds = nseg; |
7c3df132 | 1496 | req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); |
e315cd28 | 1497 | if (req->cnt < (req_cnt + 2)) { |
08029990 | 1498 | cnt = RD_REG_DWORD_RELAXED(req->req_q_out); |
73208dfd | 1499 | |
e315cd28 AC |
1500 | if (req->ring_index < cnt) |
1501 | req->cnt = cnt - req->ring_index; | |
2b6c0cee | 1502 | else |
e315cd28 AC |
1503 | req->cnt = req->length - |
1504 | (req->ring_index - cnt); | |
2b6c0cee | 1505 | } |
e315cd28 | 1506 | if (req->cnt < (req_cnt + 2)) |
2b6c0cee | 1507 | goto queuing_error; |
2b6c0cee AV |
1508 | |
1509 | /* Build command packet. */ | |
e315cd28 AC |
1510 | req->current_outstanding_cmd = handle; |
1511 | req->outstanding_cmds[handle] = sp; | |
cf53b069 | 1512 | sp->handle = handle; |
2b6c0cee | 1513 | sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
e315cd28 | 1514 | req->cnt -= req_cnt; |
2b6c0cee | 1515 | |
e315cd28 | 1516 | cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; |
2afa19a9 | 1517 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); |
2b6c0cee AV |
1518 | |
1519 | /* Zero out remaining portion of packet. */ | |
72df8325 | 1520 | /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ |
2b6c0cee AV |
1521 | clr_ptr = (uint32_t *)cmd_pkt + 2; |
1522 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
1523 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
1524 | ||
1525 | /* Set NPORT-ID and LUN number*/ | |
1526 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1527 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1528 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
1529 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
2c3dfe3f | 1530 | cmd_pkt->vp_index = sp->fcport->vp_idx; |
2b6c0cee | 1531 | |
661c3f6c | 1532 | int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun); |
0d4be124 | 1533 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); |
2b6c0cee | 1534 | |
ff2fc42e AV |
1535 | /* Update tagged queuing modifier -- default is TSK_SIMPLE (0). */ |
1536 | if (scsi_populate_tag_msg(cmd, tag)) { | |
1537 | switch (tag[0]) { | |
1538 | case HEAD_OF_QUEUE_TAG: | |
1539 | cmd_pkt->task = TSK_HEAD_OF_QUEUE; | |
1540 | break; | |
1541 | case ORDERED_QUEUE_TAG: | |
1542 | cmd_pkt->task = TSK_ORDERED; | |
1543 | break; | |
1544 | } | |
1545 | } | |
1546 | ||
2b6c0cee AV |
1547 | /* Load SCSI command packet. */ |
1548 | memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); | |
1549 | host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); | |
1550 | ||
385d70b4 | 1551 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); |
2b6c0cee AV |
1552 | |
1553 | /* Build IOCB segments */ | |
1554 | qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds); | |
1555 | ||
1556 | /* Set total data segment count. */ | |
1557 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
2afa19a9 AC |
1558 | /* Specify response queue number where completion should happen */ |
1559 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
2b6c0cee | 1560 | wmb(); |
2b6c0cee | 1561 | /* Adjust ring index. */ |
e315cd28 AC |
1562 | req->ring_index++; |
1563 | if (req->ring_index == req->length) { | |
1564 | req->ring_index = 0; | |
1565 | req->ring_ptr = req->ring; | |
2b6c0cee | 1566 | } else |
e315cd28 | 1567 | req->ring_ptr++; |
2b6c0cee AV |
1568 | |
1569 | sp->flags |= SRB_DMA_VALID; | |
2b6c0cee AV |
1570 | |
1571 | /* Set chip new ring index. */ | |
08029990 AV |
1572 | WRT_REG_DWORD(req->req_q_in, req->ring_index); |
1573 | RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); | |
2b6c0cee | 1574 | |
4fdfefe5 | 1575 | /* Manage unprocessed RIO/ZIO commands in response queue. */ |
e315cd28 | 1576 | if (vha->flags.process_response_queue && |
73208dfd | 1577 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) |
2afa19a9 | 1578 | qla24xx_process_response_queue(vha, rsp); |
4fdfefe5 | 1579 | |
e315cd28 | 1580 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
2b6c0cee AV |
1581 | return QLA_SUCCESS; |
1582 | ||
1583 | queuing_error: | |
385d70b4 FT |
1584 | if (tot_dsds) |
1585 | scsi_dma_unmap(cmd); | |
1586 | ||
e315cd28 | 1587 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
2b6c0cee AV |
1588 | |
1589 | return QLA_FUNCTION_FAILED; | |
1da177e4 | 1590 | } |
68ca949c | 1591 | |
bad75002 AE |
1592 | |
1593 | /** | |
1594 | * qla24xx_dif_start_scsi() - Send a SCSI command to the ISP | |
1595 | * @sp: command to send to the ISP | |
1596 | * | |
1597 | * Returns non-zero if a failure occurred, else zero. | |
1598 | */ | |
1599 | int | |
1600 | qla24xx_dif_start_scsi(srb_t *sp) | |
1601 | { | |
1602 | int nseg; | |
1603 | unsigned long flags; | |
1604 | uint32_t *clr_ptr; | |
1605 | uint32_t index; | |
1606 | uint32_t handle; | |
1607 | uint16_t cnt; | |
1608 | uint16_t req_cnt = 0; | |
1609 | uint16_t tot_dsds; | |
1610 | uint16_t tot_prot_dsds; | |
1611 | uint16_t fw_prot_opts = 0; | |
1612 | struct req_que *req = NULL; | |
1613 | struct rsp_que *rsp = NULL; | |
1614 | struct scsi_cmnd *cmd = sp->cmd; | |
1615 | struct scsi_qla_host *vha = sp->fcport->vha; | |
1616 | struct qla_hw_data *ha = vha->hw; | |
1617 | struct cmd_type_crc_2 *cmd_pkt; | |
1618 | uint32_t status = 0; | |
1619 | ||
1620 | #define QDSS_GOT_Q_SPACE BIT_0 | |
1621 | ||
0c470874 AE |
1622 | /* Only process protection or >16 cdb in this routine */ |
1623 | if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) { | |
1624 | if (cmd->cmd_len <= 16) | |
1625 | return qla24xx_start_scsi(sp); | |
1626 | } | |
bad75002 AE |
1627 | |
1628 | /* Setup device pointers. */ | |
1629 | ||
1630 | qla25xx_set_que(sp, &rsp); | |
1631 | req = vha->req; | |
1632 | ||
1633 | /* So we know we haven't pci_map'ed anything yet */ | |
1634 | tot_dsds = 0; | |
1635 | ||
1636 | /* Send marker if required */ | |
1637 | if (vha->marker_needed != 0) { | |
1638 | if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != | |
1639 | QLA_SUCCESS) | |
1640 | return QLA_FUNCTION_FAILED; | |
1641 | vha->marker_needed = 0; | |
1642 | } | |
1643 | ||
1644 | /* Acquire ring specific lock */ | |
1645 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
1646 | ||
1647 | /* Check for room in outstanding command list. */ | |
1648 | handle = req->current_outstanding_cmd; | |
1649 | for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { | |
1650 | handle++; | |
1651 | if (handle == MAX_OUTSTANDING_COMMANDS) | |
1652 | handle = 1; | |
1653 | if (!req->outstanding_cmds[handle]) | |
1654 | break; | |
1655 | } | |
1656 | ||
1657 | if (index == MAX_OUTSTANDING_COMMANDS) | |
1658 | goto queuing_error; | |
1659 | ||
1660 | /* Compute number of required data segments */ | |
1661 | /* Map the sg table so we have an accurate count of sg entries needed */ | |
1662 | if (scsi_sg_count(cmd)) { | |
1663 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
1664 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
1665 | if (unlikely(!nseg)) | |
1666 | goto queuing_error; | |
1667 | else | |
1668 | sp->flags |= SRB_DMA_VALID; | |
8cb2049c AE |
1669 | |
1670 | if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || | |
1671 | (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { | |
1672 | struct qla2_sgx sgx; | |
1673 | uint32_t partial; | |
1674 | ||
1675 | memset(&sgx, 0, sizeof(struct qla2_sgx)); | |
1676 | sgx.tot_bytes = scsi_bufflen(cmd); | |
1677 | sgx.cur_sg = scsi_sglist(cmd); | |
1678 | sgx.sp = sp; | |
1679 | ||
1680 | nseg = 0; | |
1681 | while (qla24xx_get_one_block_sg( | |
1682 | cmd->device->sector_size, &sgx, &partial)) | |
1683 | nseg++; | |
1684 | } | |
bad75002 AE |
1685 | } else |
1686 | nseg = 0; | |
1687 | ||
1688 | /* number of required data segments */ | |
1689 | tot_dsds = nseg; | |
1690 | ||
1691 | /* Compute number of required protection segments */ | |
1692 | if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) { | |
1693 | nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd), | |
1694 | scsi_prot_sg_count(cmd), cmd->sc_data_direction); | |
1695 | if (unlikely(!nseg)) | |
1696 | goto queuing_error; | |
1697 | else | |
1698 | sp->flags |= SRB_CRC_PROT_DMA_VALID; | |
8cb2049c AE |
1699 | |
1700 | if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || | |
1701 | (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { | |
1702 | nseg = scsi_bufflen(cmd) / cmd->device->sector_size; | |
1703 | } | |
bad75002 AE |
1704 | } else { |
1705 | nseg = 0; | |
1706 | } | |
1707 | ||
1708 | req_cnt = 1; | |
1709 | /* Total Data and protection sg segment(s) */ | |
1710 | tot_prot_dsds = nseg; | |
1711 | tot_dsds += nseg; | |
1712 | if (req->cnt < (req_cnt + 2)) { | |
1713 | cnt = RD_REG_DWORD_RELAXED(req->req_q_out); | |
1714 | ||
1715 | if (req->ring_index < cnt) | |
1716 | req->cnt = cnt - req->ring_index; | |
1717 | else | |
1718 | req->cnt = req->length - | |
1719 | (req->ring_index - cnt); | |
1720 | } | |
1721 | ||
1722 | if (req->cnt < (req_cnt + 2)) | |
1723 | goto queuing_error; | |
1724 | ||
1725 | status |= QDSS_GOT_Q_SPACE; | |
1726 | ||
1727 | /* Build header part of command packet (excluding the OPCODE). */ | |
1728 | req->current_outstanding_cmd = handle; | |
1729 | req->outstanding_cmds[handle] = sp; | |
8cb2049c | 1730 | sp->handle = handle; |
bad75002 AE |
1731 | sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
1732 | req->cnt -= req_cnt; | |
1733 | ||
1734 | /* Fill-in common area */ | |
1735 | cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr; | |
1736 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); | |
1737 | ||
1738 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
1739 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
1740 | ||
1741 | /* Set NPORT-ID and LUN number*/ | |
1742 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1743 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1744 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
1745 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
1746 | ||
1747 | int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun); | |
1748 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); | |
1749 | ||
1750 | /* Total Data and protection segment(s) */ | |
1751 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
1752 | ||
1753 | /* Build IOCB segments and adjust for data protection segments */ | |
1754 | if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *) | |
1755 | req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) != | |
1756 | QLA_SUCCESS) | |
1757 | goto queuing_error; | |
1758 | ||
1759 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
1760 | /* Specify response queue number where completion should happen */ | |
1761 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
1762 | cmd_pkt->timeout = __constant_cpu_to_le16(0); | |
1763 | wmb(); | |
1764 | ||
1765 | /* Adjust ring index. */ | |
1766 | req->ring_index++; | |
1767 | if (req->ring_index == req->length) { | |
1768 | req->ring_index = 0; | |
1769 | req->ring_ptr = req->ring; | |
1770 | } else | |
1771 | req->ring_ptr++; | |
1772 | ||
1773 | /* Set chip new ring index. */ | |
1774 | WRT_REG_DWORD(req->req_q_in, req->ring_index); | |
1775 | RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); | |
1776 | ||
1777 | /* Manage unprocessed RIO/ZIO commands in response queue. */ | |
1778 | if (vha->flags.process_response_queue && | |
1779 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) | |
1780 | qla24xx_process_response_queue(vha, rsp); | |
1781 | ||
1782 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
1783 | ||
1784 | return QLA_SUCCESS; | |
1785 | ||
1786 | queuing_error: | |
1787 | if (status & QDSS_GOT_Q_SPACE) { | |
1788 | req->outstanding_cmds[handle] = NULL; | |
1789 | req->cnt += req_cnt; | |
1790 | } | |
1791 | /* Cleanup will be performed by the caller (queuecommand) */ | |
1792 | ||
1793 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
bad75002 AE |
1794 | return QLA_FUNCTION_FAILED; |
1795 | } | |
1796 | ||
1797 | ||
59e0b8b0 | 1798 | static void qla25xx_set_que(srb_t *sp, struct rsp_que **rsp) |
68ca949c AC |
1799 | { |
1800 | struct scsi_cmnd *cmd = sp->cmd; | |
68ca949c AC |
1801 | struct qla_hw_data *ha = sp->fcport->vha->hw; |
1802 | int affinity = cmd->request->cpu; | |
1803 | ||
7163ea81 | 1804 | if (ha->flags.cpu_affinity_enabled && affinity >= 0 && |
59e0b8b0 | 1805 | affinity < ha->max_rsp_queues - 1) |
68ca949c | 1806 | *rsp = ha->rsp_q_map[affinity + 1]; |
59e0b8b0 | 1807 | else |
68ca949c | 1808 | *rsp = ha->rsp_q_map[0]; |
68ca949c | 1809 | } |
ac280b67 AV |
1810 | |
1811 | /* Generic Control-SRB manipulation functions. */ | |
d94d10e7 GM |
1812 | void * |
1813 | qla2x00_alloc_iocbs(scsi_qla_host_t *vha, srb_t *sp) | |
ac280b67 | 1814 | { |
ac280b67 AV |
1815 | struct qla_hw_data *ha = vha->hw; |
1816 | struct req_que *req = ha->req_q_map[0]; | |
1817 | device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id); | |
1818 | uint32_t index, handle; | |
1819 | request_t *pkt; | |
1820 | uint16_t cnt, req_cnt; | |
5780790e | 1821 | struct srb_ctx *ctx; |
ac280b67 AV |
1822 | |
1823 | pkt = NULL; | |
1824 | req_cnt = 1; | |
d94d10e7 GM |
1825 | handle = 0; |
1826 | ||
1827 | if (!sp) | |
1828 | goto skip_cmd_array; | |
ac280b67 AV |
1829 | |
1830 | /* Check for room in outstanding command list. */ | |
1831 | handle = req->current_outstanding_cmd; | |
1832 | for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { | |
1833 | handle++; | |
1834 | if (handle == MAX_OUTSTANDING_COMMANDS) | |
1835 | handle = 1; | |
1836 | if (!req->outstanding_cmds[handle]) | |
1837 | break; | |
1838 | } | |
7c3df132 SK |
1839 | if (index == MAX_OUTSTANDING_COMMANDS) { |
1840 | ql_log(ql_log_warn, vha, 0x700b, | |
1841 | "No room on oustanding cmd array.\n"); | |
ac280b67 | 1842 | goto queuing_error; |
7c3df132 | 1843 | } |
ac280b67 | 1844 | |
d94d10e7 GM |
1845 | /* Prep command array. */ |
1846 | req->current_outstanding_cmd = handle; | |
1847 | req->outstanding_cmds[handle] = sp; | |
1848 | sp->handle = handle; | |
1849 | ||
5780790e AV |
1850 | /* Adjust entry-counts as needed. */ |
1851 | if (sp->ctx) { | |
1852 | ctx = sp->ctx; | |
1853 | req_cnt = ctx->iocbs; | |
1854 | } | |
1855 | ||
d94d10e7 | 1856 | skip_cmd_array: |
ac280b67 AV |
1857 | /* Check for room on request queue. */ |
1858 | if (req->cnt < req_cnt) { | |
1859 | if (ha->mqenable) | |
1860 | cnt = RD_REG_DWORD(®->isp25mq.req_q_out); | |
d94d10e7 GM |
1861 | else if (IS_QLA82XX(ha)) |
1862 | cnt = RD_REG_DWORD(®->isp82.req_q_out); | |
ac280b67 AV |
1863 | else if (IS_FWI2_CAPABLE(ha)) |
1864 | cnt = RD_REG_DWORD(®->isp24.req_q_out); | |
1865 | else | |
1866 | cnt = qla2x00_debounce_register( | |
1867 | ISP_REQ_Q_OUT(ha, ®->isp)); | |
1868 | ||
1869 | if (req->ring_index < cnt) | |
1870 | req->cnt = cnt - req->ring_index; | |
1871 | else | |
1872 | req->cnt = req->length - | |
1873 | (req->ring_index - cnt); | |
1874 | } | |
1875 | if (req->cnt < req_cnt) | |
1876 | goto queuing_error; | |
1877 | ||
1878 | /* Prep packet */ | |
ac280b67 | 1879 | req->cnt -= req_cnt; |
ac280b67 AV |
1880 | pkt = req->ring_ptr; |
1881 | memset(pkt, 0, REQUEST_ENTRY_SIZE); | |
1882 | pkt->entry_count = req_cnt; | |
1883 | pkt->handle = handle; | |
ac280b67 AV |
1884 | |
1885 | queuing_error: | |
1886 | return pkt; | |
1887 | } | |
1888 | ||
ac280b67 AV |
1889 | static void |
1890 | qla24xx_login_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1891 | { | |
4916392b MI |
1892 | struct srb_ctx *ctx = sp->ctx; |
1893 | struct srb_iocb *lio = ctx->u.iocb_cmd; | |
ac280b67 AV |
1894 | |
1895 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1896 | logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI); | |
4916392b | 1897 | if (lio->u.logio.flags & SRB_LOGIN_COND_PLOGI) |
ac280b67 | 1898 | logio->control_flags |= cpu_to_le16(LCF_COND_PLOGI); |
4916392b | 1899 | if (lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI) |
ac280b67 AV |
1900 | logio->control_flags |= cpu_to_le16(LCF_SKIP_PRLI); |
1901 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1902 | logio->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1903 | logio->port_id[1] = sp->fcport->d_id.b.area; | |
1904 | logio->port_id[2] = sp->fcport->d_id.b.domain; | |
1905 | logio->vp_index = sp->fcport->vp_idx; | |
1906 | } | |
1907 | ||
1908 | static void | |
1909 | qla2x00_login_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1910 | { | |
1911 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
4916392b MI |
1912 | struct srb_ctx *ctx = sp->ctx; |
1913 | struct srb_iocb *lio = ctx->u.iocb_cmd; | |
ac280b67 AV |
1914 | uint16_t opts; |
1915 | ||
b963752f | 1916 | mbx->entry_type = MBX_IOCB_TYPE; |
ac280b67 AV |
1917 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); |
1918 | mbx->mb0 = cpu_to_le16(MBC_LOGIN_FABRIC_PORT); | |
4916392b MI |
1919 | opts = lio->u.logio.flags & SRB_LOGIN_COND_PLOGI ? BIT_0 : 0; |
1920 | opts |= lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI ? BIT_1 : 0; | |
ac280b67 AV |
1921 | if (HAS_EXTENDED_IDS(ha)) { |
1922 | mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); | |
1923 | mbx->mb10 = cpu_to_le16(opts); | |
1924 | } else { | |
1925 | mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | opts); | |
1926 | } | |
1927 | mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); | |
1928 | mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | | |
1929 | sp->fcport->d_id.b.al_pa); | |
1930 | mbx->mb9 = cpu_to_le16(sp->fcport->vp_idx); | |
1931 | } | |
1932 | ||
1933 | static void | |
1934 | qla24xx_logout_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1935 | { | |
1936 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1937 | logio->control_flags = | |
1938 | cpu_to_le16(LCF_COMMAND_LOGO|LCF_IMPL_LOGO); | |
1939 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1940 | logio->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1941 | logio->port_id[1] = sp->fcport->d_id.b.area; | |
1942 | logio->port_id[2] = sp->fcport->d_id.b.domain; | |
1943 | logio->vp_index = sp->fcport->vp_idx; | |
1944 | } | |
1945 | ||
1946 | static void | |
1947 | qla2x00_logout_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1948 | { | |
1949 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
1950 | ||
b963752f | 1951 | mbx->entry_type = MBX_IOCB_TYPE; |
ac280b67 AV |
1952 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); |
1953 | mbx->mb0 = cpu_to_le16(MBC_LOGOUT_FABRIC_PORT); | |
1954 | mbx->mb1 = HAS_EXTENDED_IDS(ha) ? | |
1955 | cpu_to_le16(sp->fcport->loop_id): | |
1956 | cpu_to_le16(sp->fcport->loop_id << 8); | |
1957 | mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); | |
1958 | mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | | |
1959 | sp->fcport->d_id.b.al_pa); | |
1960 | mbx->mb9 = cpu_to_le16(sp->fcport->vp_idx); | |
1961 | /* Implicit: mbx->mbx10 = 0. */ | |
1962 | } | |
1963 | ||
5ff1d584 AV |
1964 | static void |
1965 | qla24xx_adisc_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1966 | { | |
1967 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1968 | logio->control_flags = cpu_to_le16(LCF_COMMAND_ADISC); | |
1969 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1970 | logio->vp_index = sp->fcport->vp_idx; | |
1971 | } | |
1972 | ||
1973 | static void | |
1974 | qla2x00_adisc_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1975 | { | |
1976 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
1977 | ||
1978 | mbx->entry_type = MBX_IOCB_TYPE; | |
1979 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); | |
1980 | mbx->mb0 = cpu_to_le16(MBC_GET_PORT_DATABASE); | |
1981 | if (HAS_EXTENDED_IDS(ha)) { | |
1982 | mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); | |
1983 | mbx->mb10 = cpu_to_le16(BIT_0); | |
1984 | } else { | |
1985 | mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | BIT_0); | |
1986 | } | |
1987 | mbx->mb2 = cpu_to_le16(MSW(ha->async_pd_dma)); | |
1988 | mbx->mb3 = cpu_to_le16(LSW(ha->async_pd_dma)); | |
1989 | mbx->mb6 = cpu_to_le16(MSW(MSD(ha->async_pd_dma))); | |
1990 | mbx->mb7 = cpu_to_le16(LSW(MSD(ha->async_pd_dma))); | |
1991 | mbx->mb9 = cpu_to_le16(sp->fcport->vp_idx); | |
1992 | } | |
1993 | ||
3822263e MI |
1994 | static void |
1995 | qla24xx_tm_iocb(srb_t *sp, struct tsk_mgmt_entry *tsk) | |
1996 | { | |
1997 | uint32_t flags; | |
1998 | unsigned int lun; | |
1999 | struct fc_port *fcport = sp->fcport; | |
2000 | scsi_qla_host_t *vha = fcport->vha; | |
2001 | struct qla_hw_data *ha = vha->hw; | |
2002 | struct srb_ctx *ctx = sp->ctx; | |
2003 | struct srb_iocb *iocb = ctx->u.iocb_cmd; | |
2004 | struct req_que *req = vha->req; | |
2005 | ||
2006 | flags = iocb->u.tmf.flags; | |
2007 | lun = iocb->u.tmf.lun; | |
2008 | ||
2009 | tsk->entry_type = TSK_MGMT_IOCB_TYPE; | |
2010 | tsk->entry_count = 1; | |
2011 | tsk->handle = MAKE_HANDLE(req->id, tsk->handle); | |
2012 | tsk->nport_handle = cpu_to_le16(fcport->loop_id); | |
2013 | tsk->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); | |
2014 | tsk->control_flags = cpu_to_le32(flags); | |
2015 | tsk->port_id[0] = fcport->d_id.b.al_pa; | |
2016 | tsk->port_id[1] = fcport->d_id.b.area; | |
2017 | tsk->port_id[2] = fcport->d_id.b.domain; | |
2018 | tsk->vp_index = fcport->vp_idx; | |
2019 | ||
2020 | if (flags == TCF_LUN_RESET) { | |
2021 | int_to_scsilun(lun, &tsk->lun); | |
2022 | host_to_fcp_swap((uint8_t *)&tsk->lun, | |
2023 | sizeof(tsk->lun)); | |
2024 | } | |
2025 | } | |
2026 | ||
9a069e19 GM |
2027 | static void |
2028 | qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) | |
2029 | { | |
4916392b | 2030 | struct fc_bsg_job *bsg_job = ((struct srb_ctx *)sp->ctx)->u.bsg_job; |
9a069e19 GM |
2031 | |
2032 | els_iocb->entry_type = ELS_IOCB_TYPE; | |
2033 | els_iocb->entry_count = 1; | |
2034 | els_iocb->sys_define = 0; | |
2035 | els_iocb->entry_status = 0; | |
2036 | els_iocb->handle = sp->handle; | |
2037 | els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
2038 | els_iocb->tx_dsd_count = __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
2039 | els_iocb->vp_index = sp->fcport->vp_idx; | |
2040 | els_iocb->sof_type = EST_SOFI3; | |
2041 | els_iocb->rx_dsd_count = __constant_cpu_to_le16(bsg_job->reply_payload.sg_cnt); | |
2042 | ||
4916392b MI |
2043 | els_iocb->opcode = |
2044 | (((struct srb_ctx *)sp->ctx)->type == SRB_ELS_CMD_RPT) ? | |
2045 | bsg_job->request->rqst_data.r_els.els_code : | |
2046 | bsg_job->request->rqst_data.h_els.command_code; | |
9a069e19 GM |
2047 | els_iocb->port_id[0] = sp->fcport->d_id.b.al_pa; |
2048 | els_iocb->port_id[1] = sp->fcport->d_id.b.area; | |
2049 | els_iocb->port_id[2] = sp->fcport->d_id.b.domain; | |
2050 | els_iocb->control_flags = 0; | |
2051 | els_iocb->rx_byte_count = | |
2052 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
2053 | els_iocb->tx_byte_count = | |
2054 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
2055 | ||
2056 | els_iocb->tx_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2057 | (bsg_job->request_payload.sg_list))); | |
2058 | els_iocb->tx_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2059 | (bsg_job->request_payload.sg_list))); | |
2060 | els_iocb->tx_len = cpu_to_le32(sg_dma_len | |
2061 | (bsg_job->request_payload.sg_list)); | |
2062 | ||
2063 | els_iocb->rx_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2064 | (bsg_job->reply_payload.sg_list))); | |
2065 | els_iocb->rx_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2066 | (bsg_job->reply_payload.sg_list))); | |
2067 | els_iocb->rx_len = cpu_to_le32(sg_dma_len | |
2068 | (bsg_job->reply_payload.sg_list)); | |
2069 | } | |
2070 | ||
9bc4f4fb HZ |
2071 | static void |
2072 | qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb) | |
2073 | { | |
2074 | uint16_t avail_dsds; | |
2075 | uint32_t *cur_dsd; | |
2076 | struct scatterlist *sg; | |
2077 | int index; | |
2078 | uint16_t tot_dsds; | |
2079 | scsi_qla_host_t *vha = sp->fcport->vha; | |
2080 | struct qla_hw_data *ha = vha->hw; | |
2081 | struct fc_bsg_job *bsg_job = ((struct srb_ctx *)sp->ctx)->u.bsg_job; | |
2082 | int loop_iterartion = 0; | |
2083 | int cont_iocb_prsnt = 0; | |
2084 | int entry_count = 1; | |
2085 | ||
2086 | memset(ct_iocb, 0, sizeof(ms_iocb_entry_t)); | |
2087 | ct_iocb->entry_type = CT_IOCB_TYPE; | |
2088 | ct_iocb->entry_status = 0; | |
2089 | ct_iocb->handle1 = sp->handle; | |
2090 | SET_TARGET_ID(ha, ct_iocb->loop_id, sp->fcport->loop_id); | |
2091 | ct_iocb->status = __constant_cpu_to_le16(0); | |
2092 | ct_iocb->control_flags = __constant_cpu_to_le16(0); | |
2093 | ct_iocb->timeout = 0; | |
2094 | ct_iocb->cmd_dsd_count = | |
2095 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
2096 | ct_iocb->total_dsd_count = | |
2097 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt + 1); | |
2098 | ct_iocb->req_bytecount = | |
2099 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
2100 | ct_iocb->rsp_bytecount = | |
2101 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
2102 | ||
2103 | ct_iocb->dseg_req_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2104 | (bsg_job->request_payload.sg_list))); | |
2105 | ct_iocb->dseg_req_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2106 | (bsg_job->request_payload.sg_list))); | |
2107 | ct_iocb->dseg_req_length = ct_iocb->req_bytecount; | |
2108 | ||
2109 | ct_iocb->dseg_rsp_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2110 | (bsg_job->reply_payload.sg_list))); | |
2111 | ct_iocb->dseg_rsp_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2112 | (bsg_job->reply_payload.sg_list))); | |
2113 | ct_iocb->dseg_rsp_length = ct_iocb->rsp_bytecount; | |
2114 | ||
2115 | avail_dsds = 1; | |
2116 | cur_dsd = (uint32_t *)ct_iocb->dseg_rsp_address; | |
2117 | index = 0; | |
2118 | tot_dsds = bsg_job->reply_payload.sg_cnt; | |
2119 | ||
2120 | for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) { | |
2121 | dma_addr_t sle_dma; | |
2122 | cont_a64_entry_t *cont_pkt; | |
2123 | ||
2124 | /* Allocate additional continuation packets? */ | |
2125 | if (avail_dsds == 0) { | |
2126 | /* | |
2127 | * Five DSDs are available in the Cont. | |
2128 | * Type 1 IOCB. | |
2129 | */ | |
0d2aa38e GM |
2130 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, |
2131 | vha->hw->req_q_map[0]); | |
9bc4f4fb HZ |
2132 | cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; |
2133 | avail_dsds = 5; | |
2134 | cont_iocb_prsnt = 1; | |
2135 | entry_count++; | |
2136 | } | |
2137 | ||
2138 | sle_dma = sg_dma_address(sg); | |
2139 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
2140 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
2141 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
2142 | loop_iterartion++; | |
2143 | avail_dsds--; | |
2144 | } | |
2145 | ct_iocb->entry_count = entry_count; | |
2146 | } | |
2147 | ||
9a069e19 GM |
2148 | static void |
2149 | qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb) | |
2150 | { | |
2151 | uint16_t avail_dsds; | |
2152 | uint32_t *cur_dsd; | |
2153 | struct scatterlist *sg; | |
2154 | int index; | |
2155 | uint16_t tot_dsds; | |
2156 | scsi_qla_host_t *vha = sp->fcport->vha; | |
0d2aa38e | 2157 | struct qla_hw_data *ha = vha->hw; |
4916392b | 2158 | struct fc_bsg_job *bsg_job = ((struct srb_ctx *)sp->ctx)->u.bsg_job; |
9a069e19 GM |
2159 | int loop_iterartion = 0; |
2160 | int cont_iocb_prsnt = 0; | |
2161 | int entry_count = 1; | |
2162 | ||
2163 | ct_iocb->entry_type = CT_IOCB_TYPE; | |
2164 | ct_iocb->entry_status = 0; | |
2165 | ct_iocb->sys_define = 0; | |
2166 | ct_iocb->handle = sp->handle; | |
2167 | ||
2168 | ct_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
2169 | ct_iocb->vp_index = sp->fcport->vp_idx; | |
2170 | ct_iocb->comp_status = __constant_cpu_to_le16(0); | |
2171 | ||
2172 | ct_iocb->cmd_dsd_count = | |
2173 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
2174 | ct_iocb->timeout = 0; | |
2175 | ct_iocb->rsp_dsd_count = | |
2176 | __constant_cpu_to_le16(bsg_job->reply_payload.sg_cnt); | |
2177 | ct_iocb->rsp_byte_count = | |
2178 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
2179 | ct_iocb->cmd_byte_count = | |
2180 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
2181 | ct_iocb->dseg_0_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2182 | (bsg_job->request_payload.sg_list))); | |
2183 | ct_iocb->dseg_0_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2184 | (bsg_job->request_payload.sg_list))); | |
2185 | ct_iocb->dseg_0_len = cpu_to_le32(sg_dma_len | |
2186 | (bsg_job->request_payload.sg_list)); | |
2187 | ||
2188 | avail_dsds = 1; | |
2189 | cur_dsd = (uint32_t *)ct_iocb->dseg_1_address; | |
2190 | index = 0; | |
2191 | tot_dsds = bsg_job->reply_payload.sg_cnt; | |
2192 | ||
2193 | for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) { | |
2194 | dma_addr_t sle_dma; | |
2195 | cont_a64_entry_t *cont_pkt; | |
2196 | ||
2197 | /* Allocate additional continuation packets? */ | |
2198 | if (avail_dsds == 0) { | |
2199 | /* | |
2200 | * Five DSDs are available in the Cont. | |
2201 | * Type 1 IOCB. | |
2202 | */ | |
0d2aa38e GM |
2203 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, |
2204 | ha->req_q_map[0]); | |
9a069e19 GM |
2205 | cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; |
2206 | avail_dsds = 5; | |
2207 | cont_iocb_prsnt = 1; | |
2208 | entry_count++; | |
2209 | } | |
2210 | ||
2211 | sle_dma = sg_dma_address(sg); | |
2212 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
2213 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
2214 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
2215 | loop_iterartion++; | |
2216 | avail_dsds--; | |
2217 | } | |
2218 | ct_iocb->entry_count = entry_count; | |
2219 | } | |
2220 | ||
5162cf0c GM |
2221 | /* |
2222 | * qla82xx_start_scsi() - Send a SCSI command to the ISP | |
2223 | * @sp: command to send to the ISP | |
2224 | * | |
2225 | * Returns non-zero if a failure occurred, else zero. | |
2226 | */ | |
2227 | int | |
2228 | qla82xx_start_scsi(srb_t *sp) | |
2229 | { | |
2230 | int ret, nseg; | |
2231 | unsigned long flags; | |
2232 | struct scsi_cmnd *cmd; | |
2233 | uint32_t *clr_ptr; | |
2234 | uint32_t index; | |
2235 | uint32_t handle; | |
2236 | uint16_t cnt; | |
2237 | uint16_t req_cnt; | |
2238 | uint16_t tot_dsds; | |
2239 | struct device_reg_82xx __iomem *reg; | |
2240 | uint32_t dbval; | |
2241 | uint32_t *fcp_dl; | |
2242 | uint8_t additional_cdb_len; | |
2243 | struct ct6_dsd *ctx; | |
2244 | struct scsi_qla_host *vha = sp->fcport->vha; | |
2245 | struct qla_hw_data *ha = vha->hw; | |
2246 | struct req_que *req = NULL; | |
2247 | struct rsp_que *rsp = NULL; | |
2248 | char tag[2]; | |
2249 | ||
2250 | /* Setup device pointers. */ | |
2251 | ret = 0; | |
2252 | reg = &ha->iobase->isp82; | |
2253 | cmd = sp->cmd; | |
2254 | req = vha->req; | |
2255 | rsp = ha->rsp_q_map[0]; | |
2256 | ||
2257 | /* So we know we haven't pci_map'ed anything yet */ | |
2258 | tot_dsds = 0; | |
2259 | ||
2260 | dbval = 0x04 | (ha->portnum << 5); | |
2261 | ||
2262 | /* Send marker if required */ | |
2263 | if (vha->marker_needed != 0) { | |
2264 | if (qla2x00_marker(vha, req, | |
2265 | rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) { | |
2266 | ql_log(ql_log_warn, vha, 0x300c, | |
2267 | "qla2x00_marker failed for cmd=%p.\n", cmd); | |
2268 | return QLA_FUNCTION_FAILED; | |
2269 | } | |
2270 | vha->marker_needed = 0; | |
2271 | } | |
2272 | ||
2273 | /* Acquire ring specific lock */ | |
2274 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
2275 | ||
2276 | /* Check for room in outstanding command list. */ | |
2277 | handle = req->current_outstanding_cmd; | |
2278 | for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { | |
2279 | handle++; | |
2280 | if (handle == MAX_OUTSTANDING_COMMANDS) | |
2281 | handle = 1; | |
2282 | if (!req->outstanding_cmds[handle]) | |
2283 | break; | |
2284 | } | |
2285 | if (index == MAX_OUTSTANDING_COMMANDS) | |
2286 | goto queuing_error; | |
2287 | ||
2288 | /* Map the sg table so we have an accurate count of sg entries needed */ | |
2289 | if (scsi_sg_count(cmd)) { | |
2290 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
2291 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
2292 | if (unlikely(!nseg)) | |
2293 | goto queuing_error; | |
2294 | } else | |
2295 | nseg = 0; | |
2296 | ||
2297 | tot_dsds = nseg; | |
2298 | ||
2299 | if (tot_dsds > ql2xshiftctondsd) { | |
2300 | struct cmd_type_6 *cmd_pkt; | |
2301 | uint16_t more_dsd_lists = 0; | |
2302 | struct dsd_dma *dsd_ptr; | |
2303 | uint16_t i; | |
2304 | ||
2305 | more_dsd_lists = qla24xx_calc_dsd_lists(tot_dsds); | |
2306 | if ((more_dsd_lists + ha->gbl_dsd_inuse) >= NUM_DSD_CHAIN) { | |
2307 | ql_dbg(ql_dbg_io, vha, 0x300d, | |
2308 | "Num of DSD list %d is than %d for cmd=%p.\n", | |
2309 | more_dsd_lists + ha->gbl_dsd_inuse, NUM_DSD_CHAIN, | |
2310 | cmd); | |
2311 | goto queuing_error; | |
2312 | } | |
2313 | ||
2314 | if (more_dsd_lists <= ha->gbl_dsd_avail) | |
2315 | goto sufficient_dsds; | |
2316 | else | |
2317 | more_dsd_lists -= ha->gbl_dsd_avail; | |
2318 | ||
2319 | for (i = 0; i < more_dsd_lists; i++) { | |
2320 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
2321 | if (!dsd_ptr) { | |
2322 | ql_log(ql_log_fatal, vha, 0x300e, | |
2323 | "Failed to allocate memory for dsd_dma " | |
2324 | "for cmd=%p.\n", cmd); | |
2325 | goto queuing_error; | |
2326 | } | |
2327 | ||
2328 | dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool, | |
2329 | GFP_ATOMIC, &dsd_ptr->dsd_list_dma); | |
2330 | if (!dsd_ptr->dsd_addr) { | |
2331 | kfree(dsd_ptr); | |
2332 | ql_log(ql_log_fatal, vha, 0x300f, | |
2333 | "Failed to allocate memory for dsd_addr " | |
2334 | "for cmd=%p.\n", cmd); | |
2335 | goto queuing_error; | |
2336 | } | |
2337 | list_add_tail(&dsd_ptr->list, &ha->gbl_dsd_list); | |
2338 | ha->gbl_dsd_avail++; | |
2339 | } | |
2340 | ||
2341 | sufficient_dsds: | |
2342 | req_cnt = 1; | |
2343 | ||
2344 | if (req->cnt < (req_cnt + 2)) { | |
2345 | cnt = (uint16_t)RD_REG_DWORD_RELAXED( | |
2346 | ®->req_q_out[0]); | |
2347 | if (req->ring_index < cnt) | |
2348 | req->cnt = cnt - req->ring_index; | |
2349 | else | |
2350 | req->cnt = req->length - | |
2351 | (req->ring_index - cnt); | |
2352 | } | |
2353 | ||
2354 | if (req->cnt < (req_cnt + 2)) | |
2355 | goto queuing_error; | |
2356 | ||
2357 | ctx = sp->ctx = mempool_alloc(ha->ctx_mempool, GFP_ATOMIC); | |
2358 | if (!sp->ctx) { | |
2359 | ql_log(ql_log_fatal, vha, 0x3010, | |
2360 | "Failed to allocate ctx for cmd=%p.\n", cmd); | |
2361 | goto queuing_error; | |
2362 | } | |
2363 | memset(ctx, 0, sizeof(struct ct6_dsd)); | |
2364 | ctx->fcp_cmnd = dma_pool_alloc(ha->fcp_cmnd_dma_pool, | |
2365 | GFP_ATOMIC, &ctx->fcp_cmnd_dma); | |
2366 | if (!ctx->fcp_cmnd) { | |
2367 | ql_log(ql_log_fatal, vha, 0x3011, | |
2368 | "Failed to allocate fcp_cmnd for cmd=%p.\n", cmd); | |
2369 | goto queuing_error_fcp_cmnd; | |
2370 | } | |
2371 | ||
2372 | /* Initialize the DSD list and dma handle */ | |
2373 | INIT_LIST_HEAD(&ctx->dsd_list); | |
2374 | ctx->dsd_use_cnt = 0; | |
2375 | ||
2376 | if (cmd->cmd_len > 16) { | |
2377 | additional_cdb_len = cmd->cmd_len - 16; | |
2378 | if ((cmd->cmd_len % 4) != 0) { | |
2379 | /* SCSI command bigger than 16 bytes must be | |
2380 | * multiple of 4 | |
2381 | */ | |
2382 | ql_log(ql_log_warn, vha, 0x3012, | |
2383 | "scsi cmd len %d not multiple of 4 " | |
2384 | "for cmd=%p.\n", cmd->cmd_len, cmd); | |
2385 | goto queuing_error_fcp_cmnd; | |
2386 | } | |
2387 | ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4; | |
2388 | } else { | |
2389 | additional_cdb_len = 0; | |
2390 | ctx->fcp_cmnd_len = 12 + 16 + 4; | |
2391 | } | |
2392 | ||
2393 | cmd_pkt = (struct cmd_type_6 *)req->ring_ptr; | |
2394 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); | |
2395 | ||
2396 | /* Zero out remaining portion of packet. */ | |
2397 | /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ | |
2398 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
2399 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
2400 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
2401 | ||
2402 | /* Set NPORT-ID and LUN number*/ | |
2403 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
2404 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
2405 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
2406 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
2407 | cmd_pkt->vp_index = sp->fcport->vp_idx; | |
2408 | ||
2409 | /* Build IOCB segments */ | |
2410 | if (qla24xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds)) | |
2411 | goto queuing_error_fcp_cmnd; | |
2412 | ||
2413 | int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun); | |
2414 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); | |
2415 | ||
2416 | /* build FCP_CMND IU */ | |
2417 | memset(ctx->fcp_cmnd, 0, sizeof(struct fcp_cmnd)); | |
2418 | int_to_scsilun(sp->cmd->device->lun, &ctx->fcp_cmnd->lun); | |
2419 | ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len; | |
2420 | ||
2421 | if (cmd->sc_data_direction == DMA_TO_DEVICE) | |
2422 | ctx->fcp_cmnd->additional_cdb_len |= 1; | |
2423 | else if (cmd->sc_data_direction == DMA_FROM_DEVICE) | |
2424 | ctx->fcp_cmnd->additional_cdb_len |= 2; | |
2425 | ||
2426 | /* | |
2427 | * Update tagged queuing modifier -- default is TSK_SIMPLE (0). | |
2428 | */ | |
2429 | if (scsi_populate_tag_msg(cmd, tag)) { | |
2430 | switch (tag[0]) { | |
2431 | case HEAD_OF_QUEUE_TAG: | |
2432 | ctx->fcp_cmnd->task_attribute = | |
2433 | TSK_HEAD_OF_QUEUE; | |
2434 | break; | |
2435 | case ORDERED_QUEUE_TAG: | |
2436 | ctx->fcp_cmnd->task_attribute = | |
2437 | TSK_ORDERED; | |
2438 | break; | |
2439 | } | |
2440 | } | |
2441 | ||
a00f6296 SK |
2442 | /* Populate the FCP_PRIO. */ |
2443 | if (ha->flags.fcp_prio_enabled) | |
2444 | ctx->fcp_cmnd->task_attribute |= | |
2445 | sp->fcport->fcp_prio << 3; | |
2446 | ||
5162cf0c GM |
2447 | memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); |
2448 | ||
2449 | fcp_dl = (uint32_t *)(ctx->fcp_cmnd->cdb + 16 + | |
2450 | additional_cdb_len); | |
2451 | *fcp_dl = htonl((uint32_t)scsi_bufflen(cmd)); | |
2452 | ||
2453 | cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len); | |
2454 | cmd_pkt->fcp_cmnd_dseg_address[0] = | |
2455 | cpu_to_le32(LSD(ctx->fcp_cmnd_dma)); | |
2456 | cmd_pkt->fcp_cmnd_dseg_address[1] = | |
2457 | cpu_to_le32(MSD(ctx->fcp_cmnd_dma)); | |
2458 | ||
2459 | sp->flags |= SRB_FCP_CMND_DMA_VALID; | |
2460 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); | |
2461 | /* Set total data segment count. */ | |
2462 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
2463 | /* Specify response queue number where | |
2464 | * completion should happen | |
2465 | */ | |
2466 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
2467 | } else { | |
2468 | struct cmd_type_7 *cmd_pkt; | |
2469 | req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); | |
2470 | if (req->cnt < (req_cnt + 2)) { | |
2471 | cnt = (uint16_t)RD_REG_DWORD_RELAXED( | |
2472 | ®->req_q_out[0]); | |
2473 | if (req->ring_index < cnt) | |
2474 | req->cnt = cnt - req->ring_index; | |
2475 | else | |
2476 | req->cnt = req->length - | |
2477 | (req->ring_index - cnt); | |
2478 | } | |
2479 | if (req->cnt < (req_cnt + 2)) | |
2480 | goto queuing_error; | |
2481 | ||
2482 | cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; | |
2483 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); | |
2484 | ||
2485 | /* Zero out remaining portion of packet. */ | |
2486 | /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/ | |
2487 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
2488 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
2489 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
2490 | ||
2491 | /* Set NPORT-ID and LUN number*/ | |
2492 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
2493 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
2494 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
2495 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
2496 | cmd_pkt->vp_index = sp->fcport->vp_idx; | |
2497 | ||
2498 | int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun); | |
2499 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, | |
2500 | sizeof(cmd_pkt->lun)); | |
2501 | ||
2502 | /* | |
2503 | * Update tagged queuing modifier -- default is TSK_SIMPLE (0). | |
2504 | */ | |
2505 | if (scsi_populate_tag_msg(cmd, tag)) { | |
2506 | switch (tag[0]) { | |
2507 | case HEAD_OF_QUEUE_TAG: | |
2508 | cmd_pkt->task = TSK_HEAD_OF_QUEUE; | |
2509 | break; | |
2510 | case ORDERED_QUEUE_TAG: | |
2511 | cmd_pkt->task = TSK_ORDERED; | |
2512 | break; | |
2513 | } | |
2514 | } | |
2515 | ||
a00f6296 SK |
2516 | /* Populate the FCP_PRIO. */ |
2517 | if (ha->flags.fcp_prio_enabled) | |
2518 | cmd_pkt->task |= sp->fcport->fcp_prio << 3; | |
2519 | ||
5162cf0c GM |
2520 | /* Load SCSI command packet. */ |
2521 | memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); | |
2522 | host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); | |
2523 | ||
2524 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); | |
2525 | ||
2526 | /* Build IOCB segments */ | |
2527 | qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds); | |
2528 | ||
2529 | /* Set total data segment count. */ | |
2530 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
2531 | /* Specify response queue number where | |
2532 | * completion should happen. | |
2533 | */ | |
2534 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
2535 | ||
2536 | } | |
2537 | /* Build command packet. */ | |
2538 | req->current_outstanding_cmd = handle; | |
2539 | req->outstanding_cmds[handle] = sp; | |
2540 | sp->handle = handle; | |
2541 | sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle; | |
2542 | req->cnt -= req_cnt; | |
2543 | wmb(); | |
2544 | ||
2545 | /* Adjust ring index. */ | |
2546 | req->ring_index++; | |
2547 | if (req->ring_index == req->length) { | |
2548 | req->ring_index = 0; | |
2549 | req->ring_ptr = req->ring; | |
2550 | } else | |
2551 | req->ring_ptr++; | |
2552 | ||
2553 | sp->flags |= SRB_DMA_VALID; | |
2554 | ||
2555 | /* Set chip new ring index. */ | |
2556 | /* write, read and verify logic */ | |
2557 | dbval = dbval | (req->id << 8) | (req->ring_index << 16); | |
2558 | if (ql2xdbwr) | |
2559 | qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval); | |
2560 | else { | |
2561 | WRT_REG_DWORD( | |
2562 | (unsigned long __iomem *)ha->nxdb_wr_ptr, | |
2563 | dbval); | |
2564 | wmb(); | |
2565 | while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) { | |
2566 | WRT_REG_DWORD( | |
2567 | (unsigned long __iomem *)ha->nxdb_wr_ptr, | |
2568 | dbval); | |
2569 | wmb(); | |
2570 | } | |
2571 | } | |
2572 | ||
2573 | /* Manage unprocessed RIO/ZIO commands in response queue. */ | |
2574 | if (vha->flags.process_response_queue && | |
2575 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) | |
2576 | qla24xx_process_response_queue(vha, rsp); | |
2577 | ||
2578 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2579 | return QLA_SUCCESS; | |
2580 | ||
2581 | queuing_error_fcp_cmnd: | |
2582 | dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma); | |
2583 | queuing_error: | |
2584 | if (tot_dsds) | |
2585 | scsi_dma_unmap(cmd); | |
2586 | ||
2587 | if (sp->ctx) { | |
2588 | mempool_free(sp->ctx, ha->ctx_mempool); | |
2589 | sp->ctx = NULL; | |
2590 | } | |
2591 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2592 | ||
2593 | return QLA_FUNCTION_FAILED; | |
2594 | } | |
2595 | ||
ac280b67 AV |
2596 | int |
2597 | qla2x00_start_sp(srb_t *sp) | |
2598 | { | |
2599 | int rval; | |
2600 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
2601 | void *pkt; | |
2602 | struct srb_ctx *ctx = sp->ctx; | |
2603 | unsigned long flags; | |
2604 | ||
2605 | rval = QLA_FUNCTION_FAILED; | |
2606 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
d94d10e7 | 2607 | pkt = qla2x00_alloc_iocbs(sp->fcport->vha, sp); |
7c3df132 SK |
2608 | if (!pkt) { |
2609 | ql_log(ql_log_warn, sp->fcport->vha, 0x700c, | |
2610 | "qla2x00_alloc_iocbs failed.\n"); | |
ac280b67 | 2611 | goto done; |
7c3df132 | 2612 | } |
ac280b67 AV |
2613 | |
2614 | rval = QLA_SUCCESS; | |
2615 | switch (ctx->type) { | |
2616 | case SRB_LOGIN_CMD: | |
2617 | IS_FWI2_CAPABLE(ha) ? | |
5ff1d584 | 2618 | qla24xx_login_iocb(sp, pkt) : |
ac280b67 AV |
2619 | qla2x00_login_iocb(sp, pkt); |
2620 | break; | |
2621 | case SRB_LOGOUT_CMD: | |
2622 | IS_FWI2_CAPABLE(ha) ? | |
5ff1d584 | 2623 | qla24xx_logout_iocb(sp, pkt) : |
ac280b67 AV |
2624 | qla2x00_logout_iocb(sp, pkt); |
2625 | break; | |
9a069e19 GM |
2626 | case SRB_ELS_CMD_RPT: |
2627 | case SRB_ELS_CMD_HST: | |
2628 | qla24xx_els_iocb(sp, pkt); | |
2629 | break; | |
2630 | case SRB_CT_CMD: | |
9bc4f4fb | 2631 | IS_FWI2_CAPABLE(ha) ? |
5780790e AV |
2632 | qla24xx_ct_iocb(sp, pkt) : |
2633 | qla2x00_ct_iocb(sp, pkt); | |
9a069e19 | 2634 | break; |
5ff1d584 AV |
2635 | case SRB_ADISC_CMD: |
2636 | IS_FWI2_CAPABLE(ha) ? | |
2637 | qla24xx_adisc_iocb(sp, pkt) : | |
2638 | qla2x00_adisc_iocb(sp, pkt); | |
2639 | break; | |
3822263e MI |
2640 | case SRB_TM_CMD: |
2641 | qla24xx_tm_iocb(sp, pkt); | |
2642 | break; | |
ac280b67 AV |
2643 | default: |
2644 | break; | |
2645 | } | |
2646 | ||
2647 | wmb(); | |
5162cf0c | 2648 | qla2x00_start_iocbs(sp->fcport->vha, ha->req_q_map[0]); |
ac280b67 AV |
2649 | done: |
2650 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2651 | return rval; | |
2652 | } |