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Commit | Line | Data |
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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 | ||
73208dfd | 14 | static void qla2x00_isp_cmd(struct scsi_qla_host *, struct req_que *); |
1da177e4 | 15 | |
59e0b8b0 | 16 | static void qla25xx_set_que(srb_t *, struct rsp_que **); |
1da177e4 LT |
17 | /** |
18 | * qla2x00_get_cmd_direction() - Determine control_flag data direction. | |
19 | * @cmd: SCSI command | |
20 | * | |
21 | * Returns the proper CF_* direction based on CDB. | |
22 | */ | |
23 | static inline uint16_t | |
49fd462a | 24 | qla2x00_get_cmd_direction(srb_t *sp) |
1da177e4 LT |
25 | { |
26 | uint16_t cflags; | |
27 | ||
28 | cflags = 0; | |
29 | ||
30 | /* Set transfer direction */ | |
49fd462a | 31 | if (sp->cmd->sc_data_direction == DMA_TO_DEVICE) { |
1da177e4 | 32 | cflags = CF_WRITE; |
e315cd28 | 33 | sp->fcport->vha->hw->qla_stats.output_bytes += |
49fd462a HZ |
34 | scsi_bufflen(sp->cmd); |
35 | } else if (sp->cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
1da177e4 | 36 | cflags = CF_READ; |
e315cd28 | 37 | sp->fcport->vha->hw->qla_stats.input_bytes += |
49fd462a HZ |
38 | scsi_bufflen(sp->cmd); |
39 | } | |
1da177e4 LT |
40 | return (cflags); |
41 | } | |
42 | ||
43 | /** | |
44 | * qla2x00_calc_iocbs_32() - Determine number of Command Type 2 and | |
45 | * Continuation Type 0 IOCBs to allocate. | |
46 | * | |
47 | * @dsds: number of data segment decriptors needed | |
48 | * | |
49 | * Returns the number of IOCB entries needed to store @dsds. | |
50 | */ | |
51 | uint16_t | |
52 | qla2x00_calc_iocbs_32(uint16_t dsds) | |
53 | { | |
54 | uint16_t iocbs; | |
55 | ||
56 | iocbs = 1; | |
57 | if (dsds > 3) { | |
58 | iocbs += (dsds - 3) / 7; | |
59 | if ((dsds - 3) % 7) | |
60 | iocbs++; | |
61 | } | |
62 | return (iocbs); | |
63 | } | |
64 | ||
65 | /** | |
66 | * qla2x00_calc_iocbs_64() - Determine number of Command Type 3 and | |
67 | * Continuation Type 1 IOCBs to allocate. | |
68 | * | |
69 | * @dsds: number of data segment decriptors needed | |
70 | * | |
71 | * Returns the number of IOCB entries needed to store @dsds. | |
72 | */ | |
73 | uint16_t | |
74 | qla2x00_calc_iocbs_64(uint16_t dsds) | |
75 | { | |
76 | uint16_t iocbs; | |
77 | ||
78 | iocbs = 1; | |
79 | if (dsds > 2) { | |
80 | iocbs += (dsds - 2) / 5; | |
81 | if ((dsds - 2) % 5) | |
82 | iocbs++; | |
83 | } | |
84 | return (iocbs); | |
85 | } | |
86 | ||
87 | /** | |
88 | * qla2x00_prep_cont_type0_iocb() - Initialize a Continuation Type 0 IOCB. | |
89 | * @ha: HA context | |
90 | * | |
91 | * Returns a pointer to the Continuation Type 0 IOCB packet. | |
92 | */ | |
93 | static inline cont_entry_t * | |
67c2e93a | 94 | qla2x00_prep_cont_type0_iocb(struct scsi_qla_host *vha) |
1da177e4 LT |
95 | { |
96 | cont_entry_t *cont_pkt; | |
67c2e93a | 97 | struct req_que *req = vha->req; |
1da177e4 | 98 | /* Adjust ring index. */ |
e315cd28 AC |
99 | req->ring_index++; |
100 | if (req->ring_index == req->length) { | |
101 | req->ring_index = 0; | |
102 | req->ring_ptr = req->ring; | |
1da177e4 | 103 | } else { |
e315cd28 | 104 | req->ring_ptr++; |
1da177e4 LT |
105 | } |
106 | ||
e315cd28 | 107 | cont_pkt = (cont_entry_t *)req->ring_ptr; |
1da177e4 LT |
108 | |
109 | /* Load packet defaults. */ | |
110 | *((uint32_t *)(&cont_pkt->entry_type)) = | |
111 | __constant_cpu_to_le32(CONTINUE_TYPE); | |
112 | ||
113 | return (cont_pkt); | |
114 | } | |
115 | ||
116 | /** | |
117 | * qla2x00_prep_cont_type1_iocb() - Initialize a Continuation Type 1 IOCB. | |
118 | * @ha: HA context | |
119 | * | |
120 | * Returns a pointer to the continuation type 1 IOCB packet. | |
121 | */ | |
122 | static inline cont_a64_entry_t * | |
0d2aa38e | 123 | qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *vha, struct req_que *req) |
1da177e4 LT |
124 | { |
125 | cont_a64_entry_t *cont_pkt; | |
126 | ||
127 | /* Adjust ring index. */ | |
e315cd28 AC |
128 | req->ring_index++; |
129 | if (req->ring_index == req->length) { | |
130 | req->ring_index = 0; | |
131 | req->ring_ptr = req->ring; | |
1da177e4 | 132 | } else { |
e315cd28 | 133 | req->ring_ptr++; |
1da177e4 LT |
134 | } |
135 | ||
e315cd28 | 136 | cont_pkt = (cont_a64_entry_t *)req->ring_ptr; |
1da177e4 LT |
137 | |
138 | /* Load packet defaults. */ | |
139 | *((uint32_t *)(&cont_pkt->entry_type)) = | |
140 | __constant_cpu_to_le32(CONTINUE_A64_TYPE); | |
141 | ||
142 | return (cont_pkt); | |
143 | } | |
144 | ||
bad75002 AE |
145 | static inline int |
146 | qla24xx_configure_prot_mode(srb_t *sp, uint16_t *fw_prot_opts) | |
147 | { | |
148 | uint8_t guard = scsi_host_get_guard(sp->cmd->device->host); | |
149 | ||
150 | /* We only support T10 DIF right now */ | |
151 | if (guard != SHOST_DIX_GUARD_CRC) { | |
7c3df132 SK |
152 | ql_dbg(ql_dbg_io, sp->fcport->vha, 0x3007, |
153 | "Unsupported guard: %d for cmd=%p.\n", guard, sp->cmd); | |
bad75002 AE |
154 | return 0; |
155 | } | |
156 | ||
157 | /* We always use DIFF Bundling for best performance */ | |
158 | *fw_prot_opts = 0; | |
159 | ||
160 | /* Translate SCSI opcode to a protection opcode */ | |
161 | switch (scsi_get_prot_op(sp->cmd)) { | |
162 | case SCSI_PROT_READ_STRIP: | |
163 | *fw_prot_opts |= PO_MODE_DIF_REMOVE; | |
164 | break; | |
165 | case SCSI_PROT_WRITE_INSERT: | |
166 | *fw_prot_opts |= PO_MODE_DIF_INSERT; | |
167 | break; | |
168 | case SCSI_PROT_READ_INSERT: | |
169 | *fw_prot_opts |= PO_MODE_DIF_INSERT; | |
170 | break; | |
171 | case SCSI_PROT_WRITE_STRIP: | |
172 | *fw_prot_opts |= PO_MODE_DIF_REMOVE; | |
173 | break; | |
174 | case SCSI_PROT_READ_PASS: | |
175 | *fw_prot_opts |= PO_MODE_DIF_PASS; | |
176 | break; | |
177 | case SCSI_PROT_WRITE_PASS: | |
178 | *fw_prot_opts |= PO_MODE_DIF_PASS; | |
179 | break; | |
180 | default: /* Normal Request */ | |
181 | *fw_prot_opts |= PO_MODE_DIF_PASS; | |
182 | break; | |
183 | } | |
184 | ||
185 | return scsi_prot_sg_count(sp->cmd); | |
186 | } | |
187 | ||
188 | /* | |
1da177e4 LT |
189 | * qla2x00_build_scsi_iocbs_32() - Build IOCB command utilizing 32bit |
190 | * capable IOCB types. | |
191 | * | |
192 | * @sp: SRB command to process | |
193 | * @cmd_pkt: Command type 2 IOCB | |
194 | * @tot_dsds: Total number of segments to transfer | |
195 | */ | |
196 | void qla2x00_build_scsi_iocbs_32(srb_t *sp, cmd_entry_t *cmd_pkt, | |
197 | uint16_t tot_dsds) | |
198 | { | |
199 | uint16_t avail_dsds; | |
200 | uint32_t *cur_dsd; | |
e315cd28 | 201 | scsi_qla_host_t *vha; |
1da177e4 | 202 | struct scsi_cmnd *cmd; |
385d70b4 FT |
203 | struct scatterlist *sg; |
204 | int i; | |
1da177e4 LT |
205 | |
206 | cmd = sp->cmd; | |
207 | ||
208 | /* Update entry type to indicate Command Type 2 IOCB */ | |
209 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
210 | __constant_cpu_to_le32(COMMAND_TYPE); | |
211 | ||
212 | /* No data transfer */ | |
385d70b4 | 213 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { |
1da177e4 LT |
214 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
215 | return; | |
216 | } | |
217 | ||
444786d7 | 218 | vha = sp->fcport->vha; |
49fd462a | 219 | cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); |
1da177e4 LT |
220 | |
221 | /* Three DSDs are available in the Command Type 2 IOCB */ | |
222 | avail_dsds = 3; | |
223 | cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address; | |
224 | ||
225 | /* Load data segments */ | |
385d70b4 FT |
226 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { |
227 | cont_entry_t *cont_pkt; | |
228 | ||
229 | /* Allocate additional continuation packets? */ | |
230 | if (avail_dsds == 0) { | |
231 | /* | |
232 | * Seven DSDs are available in the Continuation | |
233 | * Type 0 IOCB. | |
234 | */ | |
67c2e93a | 235 | cont_pkt = qla2x00_prep_cont_type0_iocb(vha); |
385d70b4 FT |
236 | cur_dsd = (uint32_t *)&cont_pkt->dseg_0_address; |
237 | avail_dsds = 7; | |
1da177e4 | 238 | } |
385d70b4 FT |
239 | |
240 | *cur_dsd++ = cpu_to_le32(sg_dma_address(sg)); | |
241 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
242 | avail_dsds--; | |
1da177e4 LT |
243 | } |
244 | } | |
245 | ||
246 | /** | |
247 | * qla2x00_build_scsi_iocbs_64() - Build IOCB command utilizing 64bit | |
248 | * capable IOCB types. | |
249 | * | |
250 | * @sp: SRB command to process | |
251 | * @cmd_pkt: Command type 3 IOCB | |
252 | * @tot_dsds: Total number of segments to transfer | |
253 | */ | |
254 | void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt, | |
255 | uint16_t tot_dsds) | |
256 | { | |
257 | uint16_t avail_dsds; | |
258 | uint32_t *cur_dsd; | |
e315cd28 | 259 | scsi_qla_host_t *vha; |
1da177e4 | 260 | struct scsi_cmnd *cmd; |
385d70b4 FT |
261 | struct scatterlist *sg; |
262 | int i; | |
1da177e4 LT |
263 | |
264 | cmd = sp->cmd; | |
265 | ||
266 | /* Update entry type to indicate Command Type 3 IOCB */ | |
267 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
268 | __constant_cpu_to_le32(COMMAND_A64_TYPE); | |
269 | ||
270 | /* No data transfer */ | |
385d70b4 | 271 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { |
1da177e4 LT |
272 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
273 | return; | |
274 | } | |
275 | ||
444786d7 | 276 | vha = sp->fcport->vha; |
49fd462a | 277 | cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); |
1da177e4 LT |
278 | |
279 | /* Two DSDs are available in the Command Type 3 IOCB */ | |
280 | avail_dsds = 2; | |
281 | cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address; | |
282 | ||
283 | /* Load data segments */ | |
385d70b4 FT |
284 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { |
285 | dma_addr_t sle_dma; | |
286 | cont_a64_entry_t *cont_pkt; | |
287 | ||
288 | /* Allocate additional continuation packets? */ | |
289 | if (avail_dsds == 0) { | |
290 | /* | |
291 | * Five DSDs are available in the Continuation | |
292 | * Type 1 IOCB. | |
293 | */ | |
0d2aa38e | 294 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); |
385d70b4 FT |
295 | cur_dsd = (uint32_t *)cont_pkt->dseg_0_address; |
296 | avail_dsds = 5; | |
1da177e4 | 297 | } |
385d70b4 FT |
298 | |
299 | sle_dma = sg_dma_address(sg); | |
300 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
301 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
302 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
303 | avail_dsds--; | |
1da177e4 LT |
304 | } |
305 | } | |
306 | ||
307 | /** | |
308 | * qla2x00_start_scsi() - Send a SCSI command to the ISP | |
309 | * @sp: command to send to the ISP | |
310 | * | |
cc3ef7bc | 311 | * Returns non-zero if a failure occurred, else zero. |
1da177e4 LT |
312 | */ |
313 | int | |
314 | qla2x00_start_scsi(srb_t *sp) | |
315 | { | |
385d70b4 | 316 | int ret, nseg; |
1da177e4 | 317 | unsigned long flags; |
e315cd28 | 318 | scsi_qla_host_t *vha; |
1da177e4 LT |
319 | struct scsi_cmnd *cmd; |
320 | uint32_t *clr_ptr; | |
321 | uint32_t index; | |
322 | uint32_t handle; | |
323 | cmd_entry_t *cmd_pkt; | |
1da177e4 LT |
324 | uint16_t cnt; |
325 | uint16_t req_cnt; | |
326 | uint16_t tot_dsds; | |
3d71644c | 327 | struct device_reg_2xxx __iomem *reg; |
e315cd28 AC |
328 | struct qla_hw_data *ha; |
329 | struct req_que *req; | |
73208dfd | 330 | struct rsp_que *rsp; |
ff2fc42e | 331 | char tag[2]; |
1da177e4 LT |
332 | |
333 | /* Setup device pointers. */ | |
334 | ret = 0; | |
444786d7 | 335 | vha = sp->fcport->vha; |
e315cd28 | 336 | ha = vha->hw; |
3d71644c | 337 | reg = &ha->iobase->isp; |
1da177e4 | 338 | cmd = sp->cmd; |
73208dfd AC |
339 | req = ha->req_q_map[0]; |
340 | rsp = ha->rsp_q_map[0]; | |
83021920 AV |
341 | /* So we know we haven't pci_map'ed anything yet */ |
342 | tot_dsds = 0; | |
1da177e4 LT |
343 | |
344 | /* Send marker if required */ | |
e315cd28 | 345 | if (vha->marker_needed != 0) { |
7c3df132 SK |
346 | if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != |
347 | QLA_SUCCESS) { | |
1da177e4 | 348 | return (QLA_FUNCTION_FAILED); |
7c3df132 | 349 | } |
e315cd28 | 350 | vha->marker_needed = 0; |
1da177e4 LT |
351 | } |
352 | ||
353 | /* Acquire ring specific lock */ | |
c9c5ced9 | 354 | spin_lock_irqsave(&ha->hardware_lock, flags); |
1da177e4 LT |
355 | |
356 | /* Check for room in outstanding command list. */ | |
e315cd28 | 357 | handle = req->current_outstanding_cmd; |
1da177e4 LT |
358 | for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { |
359 | handle++; | |
360 | if (handle == MAX_OUTSTANDING_COMMANDS) | |
361 | handle = 1; | |
e315cd28 | 362 | if (!req->outstanding_cmds[handle]) |
1da177e4 LT |
363 | break; |
364 | } | |
365 | if (index == MAX_OUTSTANDING_COMMANDS) | |
366 | goto queuing_error; | |
367 | ||
83021920 | 368 | /* Map the sg table so we have an accurate count of sg entries needed */ |
2c3dfe3f SJ |
369 | if (scsi_sg_count(cmd)) { |
370 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
371 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
372 | if (unlikely(!nseg)) | |
373 | goto queuing_error; | |
374 | } else | |
375 | nseg = 0; | |
376 | ||
385d70b4 | 377 | tot_dsds = nseg; |
83021920 | 378 | |
1da177e4 | 379 | /* Calculate the number of request entries needed. */ |
fd34f556 | 380 | req_cnt = ha->isp_ops->calc_req_entries(tot_dsds); |
e315cd28 | 381 | if (req->cnt < (req_cnt + 2)) { |
1da177e4 | 382 | cnt = RD_REG_WORD_RELAXED(ISP_REQ_Q_OUT(ha, reg)); |
e315cd28 AC |
383 | if (req->ring_index < cnt) |
384 | req->cnt = cnt - req->ring_index; | |
1da177e4 | 385 | else |
e315cd28 AC |
386 | req->cnt = req->length - |
387 | (req->ring_index - cnt); | |
1da177e4 | 388 | } |
e315cd28 | 389 | if (req->cnt < (req_cnt + 2)) |
1da177e4 LT |
390 | goto queuing_error; |
391 | ||
1da177e4 | 392 | /* Build command packet */ |
e315cd28 AC |
393 | req->current_outstanding_cmd = handle; |
394 | req->outstanding_cmds[handle] = sp; | |
cf53b069 | 395 | sp->handle = handle; |
1da177e4 | 396 | sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
e315cd28 | 397 | req->cnt -= req_cnt; |
1da177e4 | 398 | |
e315cd28 | 399 | cmd_pkt = (cmd_entry_t *)req->ring_ptr; |
1da177e4 LT |
400 | cmd_pkt->handle = handle; |
401 | /* Zero out remaining portion of packet. */ | |
402 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
403 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
404 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
405 | ||
bdf79621 AV |
406 | /* Set target ID and LUN number*/ |
407 | SET_TARGET_ID(ha, cmd_pkt->target, sp->fcport->loop_id); | |
408 | cmd_pkt->lun = cpu_to_le16(sp->cmd->device->lun); | |
1da177e4 LT |
409 | |
410 | /* Update tagged queuing modifier */ | |
ff2fc42e AV |
411 | if (scsi_populate_tag_msg(cmd, tag)) { |
412 | switch (tag[0]) { | |
413 | case HEAD_OF_QUEUE_TAG: | |
414 | cmd_pkt->control_flags = | |
415 | __constant_cpu_to_le16(CF_HEAD_TAG); | |
416 | break; | |
417 | case ORDERED_QUEUE_TAG: | |
418 | cmd_pkt->control_flags = | |
419 | __constant_cpu_to_le16(CF_ORDERED_TAG); | |
420 | break; | |
421 | default: | |
422 | cmd_pkt->control_flags = | |
423 | __constant_cpu_to_le16(CF_SIMPLE_TAG); | |
424 | break; | |
425 | } | |
426 | } | |
1da177e4 | 427 | |
1da177e4 LT |
428 | /* Load SCSI command packet. */ |
429 | memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len); | |
385d70b4 | 430 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); |
1da177e4 LT |
431 | |
432 | /* Build IOCB segments */ | |
fd34f556 | 433 | ha->isp_ops->build_iocbs(sp, cmd_pkt, tot_dsds); |
1da177e4 LT |
434 | |
435 | /* Set total data segment count. */ | |
436 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
437 | wmb(); | |
438 | ||
439 | /* Adjust ring index. */ | |
e315cd28 AC |
440 | req->ring_index++; |
441 | if (req->ring_index == req->length) { | |
442 | req->ring_index = 0; | |
443 | req->ring_ptr = req->ring; | |
1da177e4 | 444 | } else |
e315cd28 | 445 | req->ring_ptr++; |
1da177e4 | 446 | |
1da177e4 | 447 | sp->flags |= SRB_DMA_VALID; |
1da177e4 LT |
448 | |
449 | /* Set chip new ring index. */ | |
e315cd28 | 450 | WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), req->ring_index); |
1da177e4 LT |
451 | RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, reg)); /* PCI Posting. */ |
452 | ||
4fdfefe5 | 453 | /* Manage unprocessed RIO/ZIO commands in response queue. */ |
e315cd28 | 454 | if (vha->flags.process_response_queue && |
73208dfd AC |
455 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) |
456 | qla2x00_process_response_queue(rsp); | |
4fdfefe5 | 457 | |
c9c5ced9 | 458 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
1da177e4 LT |
459 | return (QLA_SUCCESS); |
460 | ||
461 | queuing_error: | |
385d70b4 FT |
462 | if (tot_dsds) |
463 | scsi_dma_unmap(cmd); | |
464 | ||
c9c5ced9 | 465 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
1da177e4 LT |
466 | |
467 | return (QLA_FUNCTION_FAILED); | |
468 | } | |
469 | ||
470 | /** | |
471 | * qla2x00_marker() - Send a marker IOCB to the firmware. | |
472 | * @ha: HA context | |
473 | * @loop_id: loop ID | |
474 | * @lun: LUN | |
475 | * @type: marker modifier | |
476 | * | |
477 | * Can be called from both normal and interrupt context. | |
478 | * | |
cc3ef7bc | 479 | * Returns non-zero if a failure occurred, else zero. |
1da177e4 | 480 | */ |
3dbe756a | 481 | static int |
73208dfd AC |
482 | __qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req, |
483 | struct rsp_que *rsp, uint16_t loop_id, | |
484 | uint16_t lun, uint8_t type) | |
1da177e4 | 485 | { |
2b6c0cee AV |
486 | mrk_entry_t *mrk; |
487 | struct mrk_entry_24xx *mrk24; | |
e315cd28 AC |
488 | struct qla_hw_data *ha = vha->hw; |
489 | scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); | |
1da177e4 | 490 | |
2b6c0cee | 491 | mrk24 = NULL; |
99b8212c | 492 | req = ha->req_q_map[0]; |
d94d10e7 | 493 | mrk = (mrk_entry_t *)qla2x00_alloc_iocbs(vha, 0); |
2b6c0cee | 494 | if (mrk == NULL) { |
7c3df132 SK |
495 | ql_log(ql_log_warn, base_vha, 0x3026, |
496 | "Failed to allocate Marker IOCB.\n"); | |
1da177e4 LT |
497 | |
498 | return (QLA_FUNCTION_FAILED); | |
499 | } | |
500 | ||
2b6c0cee AV |
501 | mrk->entry_type = MARKER_TYPE; |
502 | mrk->modifier = type; | |
1da177e4 | 503 | if (type != MK_SYNC_ALL) { |
e428924c | 504 | if (IS_FWI2_CAPABLE(ha)) { |
2b6c0cee AV |
505 | mrk24 = (struct mrk_entry_24xx *) mrk; |
506 | mrk24->nport_handle = cpu_to_le16(loop_id); | |
507 | mrk24->lun[1] = LSB(lun); | |
508 | mrk24->lun[2] = MSB(lun); | |
b797b6de | 509 | host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun)); |
e315cd28 | 510 | mrk24->vp_index = vha->vp_idx; |
2afa19a9 | 511 | mrk24->handle = MAKE_HANDLE(req->id, mrk24->handle); |
2b6c0cee AV |
512 | } else { |
513 | SET_TARGET_ID(ha, mrk->target, loop_id); | |
514 | mrk->lun = cpu_to_le16(lun); | |
515 | } | |
1da177e4 LT |
516 | } |
517 | wmb(); | |
518 | ||
73208dfd | 519 | qla2x00_isp_cmd(vha, req); |
1da177e4 LT |
520 | |
521 | return (QLA_SUCCESS); | |
522 | } | |
523 | ||
fa2a1ce5 | 524 | int |
73208dfd AC |
525 | qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req, |
526 | struct rsp_que *rsp, uint16_t loop_id, uint16_t lun, | |
527 | uint8_t type) | |
1da177e4 LT |
528 | { |
529 | int ret; | |
530 | unsigned long flags = 0; | |
531 | ||
73208dfd AC |
532 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); |
533 | ret = __qla2x00_marker(vha, req, rsp, loop_id, lun, type); | |
534 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); | |
1da177e4 LT |
535 | |
536 | return (ret); | |
537 | } | |
538 | ||
1da177e4 LT |
539 | /** |
540 | * qla2x00_isp_cmd() - Modify the request ring pointer. | |
541 | * @ha: HA context | |
542 | * | |
543 | * Note: The caller must hold the hardware lock before calling this routine. | |
544 | */ | |
413975a0 | 545 | static void |
73208dfd | 546 | qla2x00_isp_cmd(struct scsi_qla_host *vha, struct req_que *req) |
1da177e4 | 547 | { |
e315cd28 | 548 | struct qla_hw_data *ha = vha->hw; |
73208dfd | 549 | device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id); |
17d98630 | 550 | struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp; |
1da177e4 | 551 | |
7c3df132 SK |
552 | ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x302d, |
553 | "IOCB data:\n"); | |
554 | ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302e, | |
555 | (uint8_t *)req->ring_ptr, REQUEST_ENTRY_SIZE); | |
1da177e4 LT |
556 | |
557 | /* Adjust ring index. */ | |
e315cd28 AC |
558 | req->ring_index++; |
559 | if (req->ring_index == req->length) { | |
560 | req->ring_index = 0; | |
561 | req->ring_ptr = req->ring; | |
1da177e4 | 562 | } else |
e315cd28 | 563 | req->ring_ptr++; |
1da177e4 LT |
564 | |
565 | /* Set chip new ring index. */ | |
a9083016 GM |
566 | if (IS_QLA82XX(ha)) { |
567 | uint32_t dbval = 0x04 | (ha->portnum << 5); | |
568 | ||
569 | /* write, read and verify logic */ | |
570 | dbval = dbval | (req->id << 8) | (req->ring_index << 16); | |
571 | if (ql2xdbwr) | |
572 | qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval); | |
573 | else { | |
574 | WRT_REG_DWORD( | |
575 | (unsigned long __iomem *)ha->nxdb_wr_ptr, | |
576 | dbval); | |
577 | wmb(); | |
578 | while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) { | |
579 | WRT_REG_DWORD((unsigned long __iomem *) | |
580 | ha->nxdb_wr_ptr, dbval); | |
581 | wmb(); | |
582 | } | |
583 | } | |
584 | } else if (ha->mqenable) { | |
585 | /* Set chip new ring index. */ | |
17d98630 AC |
586 | WRT_REG_DWORD(®->isp25mq.req_q_in, req->ring_index); |
587 | RD_REG_DWORD(&ioreg->hccr); | |
a9083016 | 588 | } else { |
73208dfd AC |
589 | if (IS_FWI2_CAPABLE(ha)) { |
590 | WRT_REG_DWORD(®->isp24.req_q_in, req->ring_index); | |
591 | RD_REG_DWORD_RELAXED(®->isp24.req_q_in); | |
592 | } else { | |
593 | WRT_REG_WORD(ISP_REQ_Q_IN(ha, ®->isp), | |
594 | req->ring_index); | |
595 | RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, ®->isp)); | |
596 | } | |
2b6c0cee AV |
597 | } |
598 | ||
599 | } | |
600 | ||
601 | /** | |
602 | * qla24xx_calc_iocbs() - Determine number of Command Type 3 and | |
603 | * Continuation Type 1 IOCBs to allocate. | |
604 | * | |
605 | * @dsds: number of data segment decriptors needed | |
606 | * | |
607 | * Returns the number of IOCB entries needed to store @dsds. | |
608 | */ | |
a9083016 | 609 | inline uint16_t |
7c3df132 | 610 | qla24xx_calc_iocbs(scsi_qla_host_t *vha, uint16_t dsds) |
2b6c0cee AV |
611 | { |
612 | uint16_t iocbs; | |
613 | ||
614 | iocbs = 1; | |
615 | if (dsds > 1) { | |
616 | iocbs += (dsds - 1) / 5; | |
617 | if ((dsds - 1) % 5) | |
618 | iocbs++; | |
619 | } | |
620 | return iocbs; | |
621 | } | |
622 | ||
623 | /** | |
624 | * qla24xx_build_scsi_iocbs() - Build IOCB command utilizing Command Type 7 | |
625 | * IOCB types. | |
626 | * | |
627 | * @sp: SRB command to process | |
628 | * @cmd_pkt: Command type 3 IOCB | |
629 | * @tot_dsds: Total number of segments to transfer | |
630 | */ | |
a9083016 | 631 | inline void |
2b6c0cee AV |
632 | qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt, |
633 | uint16_t tot_dsds) | |
634 | { | |
635 | uint16_t avail_dsds; | |
636 | uint32_t *cur_dsd; | |
e315cd28 | 637 | scsi_qla_host_t *vha; |
2b6c0cee | 638 | struct scsi_cmnd *cmd; |
385d70b4 FT |
639 | struct scatterlist *sg; |
640 | int i; | |
73208dfd | 641 | struct req_que *req; |
2b6c0cee AV |
642 | |
643 | cmd = sp->cmd; | |
644 | ||
645 | /* Update entry type to indicate Command Type 3 IOCB */ | |
646 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
647 | __constant_cpu_to_le32(COMMAND_TYPE_7); | |
648 | ||
649 | /* No data transfer */ | |
385d70b4 | 650 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { |
2b6c0cee AV |
651 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
652 | return; | |
653 | } | |
654 | ||
444786d7 | 655 | vha = sp->fcport->vha; |
67c2e93a | 656 | req = vha->req; |
2b6c0cee AV |
657 | |
658 | /* Set transfer direction */ | |
49fd462a | 659 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { |
2b6c0cee AV |
660 | cmd_pkt->task_mgmt_flags = |
661 | __constant_cpu_to_le16(TMF_WRITE_DATA); | |
e315cd28 | 662 | sp->fcport->vha->hw->qla_stats.output_bytes += |
49fd462a HZ |
663 | scsi_bufflen(sp->cmd); |
664 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
2b6c0cee AV |
665 | cmd_pkt->task_mgmt_flags = |
666 | __constant_cpu_to_le16(TMF_READ_DATA); | |
e315cd28 | 667 | sp->fcport->vha->hw->qla_stats.input_bytes += |
49fd462a HZ |
668 | scsi_bufflen(sp->cmd); |
669 | } | |
2b6c0cee AV |
670 | |
671 | /* One DSD is available in the Command Type 3 IOCB */ | |
672 | avail_dsds = 1; | |
673 | cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address; | |
674 | ||
675 | /* Load data segments */ | |
385d70b4 FT |
676 | |
677 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { | |
678 | dma_addr_t sle_dma; | |
679 | cont_a64_entry_t *cont_pkt; | |
680 | ||
681 | /* Allocate additional continuation packets? */ | |
682 | if (avail_dsds == 0) { | |
683 | /* | |
684 | * Five DSDs are available in the Continuation | |
685 | * Type 1 IOCB. | |
686 | */ | |
0d2aa38e | 687 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); |
385d70b4 FT |
688 | cur_dsd = (uint32_t *)cont_pkt->dseg_0_address; |
689 | avail_dsds = 5; | |
2b6c0cee | 690 | } |
385d70b4 FT |
691 | |
692 | sle_dma = sg_dma_address(sg); | |
693 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
694 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
695 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
696 | avail_dsds--; | |
2b6c0cee AV |
697 | } |
698 | } | |
699 | ||
bad75002 AE |
700 | struct fw_dif_context { |
701 | uint32_t ref_tag; | |
702 | uint16_t app_tag; | |
703 | uint8_t ref_tag_mask[4]; /* Validation/Replacement Mask*/ | |
704 | uint8_t app_tag_mask[2]; /* Validation/Replacement Mask*/ | |
705 | }; | |
706 | ||
707 | /* | |
708 | * qla24xx_set_t10dif_tags_from_cmd - Extract Ref and App tags from SCSI command | |
709 | * | |
710 | */ | |
711 | static inline void | |
e02587d7 | 712 | qla24xx_set_t10dif_tags(srb_t *sp, struct fw_dif_context *pkt, |
bad75002 AE |
713 | unsigned int protcnt) |
714 | { | |
e02587d7 | 715 | struct scsi_cmnd *cmd = sp->cmd; |
7c3df132 | 716 | scsi_qla_host_t *vha = shost_priv(cmd->device->host); |
bad75002 AE |
717 | |
718 | switch (scsi_get_prot_type(cmd)) { | |
bad75002 | 719 | case SCSI_PROT_DIF_TYPE0: |
8cb2049c AE |
720 | /* |
721 | * No check for ql2xenablehba_err_chk, as it would be an | |
722 | * I/O error if hba tag generation is not done. | |
723 | */ | |
724 | pkt->ref_tag = cpu_to_le32((uint32_t) | |
725 | (0xffffffff & scsi_get_lba(cmd))); | |
e02587d7 AE |
726 | |
727 | if (!qla2x00_hba_err_chk_enabled(sp)) | |
728 | break; | |
729 | ||
8cb2049c AE |
730 | pkt->ref_tag_mask[0] = 0xff; |
731 | pkt->ref_tag_mask[1] = 0xff; | |
732 | pkt->ref_tag_mask[2] = 0xff; | |
733 | pkt->ref_tag_mask[3] = 0xff; | |
bad75002 AE |
734 | break; |
735 | ||
736 | /* | |
737 | * For TYPE 2 protection: 16 bit GUARD + 32 bit REF tag has to | |
738 | * match LBA in CDB + N | |
739 | */ | |
740 | case SCSI_PROT_DIF_TYPE2: | |
e02587d7 AE |
741 | pkt->app_tag = __constant_cpu_to_le16(0); |
742 | pkt->app_tag_mask[0] = 0x0; | |
743 | pkt->app_tag_mask[1] = 0x0; | |
0c470874 AE |
744 | |
745 | pkt->ref_tag = cpu_to_le32((uint32_t) | |
746 | (0xffffffff & scsi_get_lba(cmd))); | |
747 | ||
e02587d7 AE |
748 | if (!qla2x00_hba_err_chk_enabled(sp)) |
749 | break; | |
750 | ||
0c470874 AE |
751 | /* enable ALL bytes of the ref tag */ |
752 | pkt->ref_tag_mask[0] = 0xff; | |
753 | pkt->ref_tag_mask[1] = 0xff; | |
754 | pkt->ref_tag_mask[2] = 0xff; | |
755 | pkt->ref_tag_mask[3] = 0xff; | |
bad75002 AE |
756 | break; |
757 | ||
758 | /* For Type 3 protection: 16 bit GUARD only */ | |
759 | case SCSI_PROT_DIF_TYPE3: | |
760 | pkt->ref_tag_mask[0] = pkt->ref_tag_mask[1] = | |
761 | pkt->ref_tag_mask[2] = pkt->ref_tag_mask[3] = | |
762 | 0x00; | |
763 | break; | |
764 | ||
765 | /* | |
766 | * For TYpe 1 protection: 16 bit GUARD tag, 32 bit REF tag, and | |
767 | * 16 bit app tag. | |
768 | */ | |
769 | case SCSI_PROT_DIF_TYPE1: | |
e02587d7 AE |
770 | pkt->ref_tag = cpu_to_le32((uint32_t) |
771 | (0xffffffff & scsi_get_lba(cmd))); | |
772 | pkt->app_tag = __constant_cpu_to_le16(0); | |
773 | pkt->app_tag_mask[0] = 0x0; | |
774 | pkt->app_tag_mask[1] = 0x0; | |
775 | ||
776 | if (!qla2x00_hba_err_chk_enabled(sp)) | |
bad75002 AE |
777 | break; |
778 | ||
bad75002 AE |
779 | /* enable ALL bytes of the ref tag */ |
780 | pkt->ref_tag_mask[0] = 0xff; | |
781 | pkt->ref_tag_mask[1] = 0xff; | |
782 | pkt->ref_tag_mask[2] = 0xff; | |
783 | pkt->ref_tag_mask[3] = 0xff; | |
784 | break; | |
785 | } | |
786 | ||
7c3df132 SK |
787 | ql_dbg(ql_dbg_io, vha, 0x3009, |
788 | "Setting protection Tags: (BIG) ref tag = 0x%x, app tag = 0x%x, " | |
789 | "prot SG count %d, cmd lba 0x%x, prot_type=%u cmd=%p.\n", | |
790 | pkt->ref_tag, pkt->app_tag, protcnt, (int)scsi_get_lba(cmd), | |
791 | scsi_get_prot_type(cmd), cmd); | |
bad75002 AE |
792 | } |
793 | ||
8cb2049c AE |
794 | struct qla2_sgx { |
795 | dma_addr_t dma_addr; /* OUT */ | |
796 | uint32_t dma_len; /* OUT */ | |
797 | ||
798 | uint32_t tot_bytes; /* IN */ | |
799 | struct scatterlist *cur_sg; /* IN */ | |
800 | ||
801 | /* for book keeping, bzero on initial invocation */ | |
802 | uint32_t bytes_consumed; | |
803 | uint32_t num_bytes; | |
804 | uint32_t tot_partial; | |
805 | ||
806 | /* for debugging */ | |
807 | uint32_t num_sg; | |
808 | srb_t *sp; | |
809 | }; | |
810 | ||
811 | static int | |
812 | qla24xx_get_one_block_sg(uint32_t blk_sz, struct qla2_sgx *sgx, | |
813 | uint32_t *partial) | |
814 | { | |
815 | struct scatterlist *sg; | |
816 | uint32_t cumulative_partial, sg_len; | |
817 | dma_addr_t sg_dma_addr; | |
818 | ||
819 | if (sgx->num_bytes == sgx->tot_bytes) | |
820 | return 0; | |
821 | ||
822 | sg = sgx->cur_sg; | |
823 | cumulative_partial = sgx->tot_partial; | |
824 | ||
825 | sg_dma_addr = sg_dma_address(sg); | |
826 | sg_len = sg_dma_len(sg); | |
827 | ||
828 | sgx->dma_addr = sg_dma_addr + sgx->bytes_consumed; | |
829 | ||
830 | if ((cumulative_partial + (sg_len - sgx->bytes_consumed)) >= blk_sz) { | |
831 | sgx->dma_len = (blk_sz - cumulative_partial); | |
832 | sgx->tot_partial = 0; | |
833 | sgx->num_bytes += blk_sz; | |
834 | *partial = 0; | |
835 | } else { | |
836 | sgx->dma_len = sg_len - sgx->bytes_consumed; | |
837 | sgx->tot_partial += sgx->dma_len; | |
838 | *partial = 1; | |
839 | } | |
840 | ||
841 | sgx->bytes_consumed += sgx->dma_len; | |
842 | ||
843 | if (sg_len == sgx->bytes_consumed) { | |
844 | sg = sg_next(sg); | |
845 | sgx->num_sg++; | |
846 | sgx->cur_sg = sg; | |
847 | sgx->bytes_consumed = 0; | |
848 | } | |
849 | ||
850 | return 1; | |
851 | } | |
852 | ||
853 | static int | |
854 | qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data *ha, srb_t *sp, | |
855 | uint32_t *dsd, uint16_t tot_dsds) | |
856 | { | |
857 | void *next_dsd; | |
858 | uint8_t avail_dsds = 0; | |
859 | uint32_t dsd_list_len; | |
860 | struct dsd_dma *dsd_ptr; | |
861 | struct scatterlist *sg_prot; | |
862 | uint32_t *cur_dsd = dsd; | |
863 | uint16_t used_dsds = tot_dsds; | |
864 | ||
865 | uint32_t prot_int; | |
866 | uint32_t partial; | |
867 | struct qla2_sgx sgx; | |
868 | dma_addr_t sle_dma; | |
869 | uint32_t sle_dma_len, tot_prot_dma_len = 0; | |
870 | struct scsi_cmnd *cmd = sp->cmd; | |
871 | ||
872 | prot_int = cmd->device->sector_size; | |
873 | ||
874 | memset(&sgx, 0, sizeof(struct qla2_sgx)); | |
875 | sgx.tot_bytes = scsi_bufflen(sp->cmd); | |
876 | sgx.cur_sg = scsi_sglist(sp->cmd); | |
877 | sgx.sp = sp; | |
878 | ||
879 | sg_prot = scsi_prot_sglist(sp->cmd); | |
880 | ||
881 | while (qla24xx_get_one_block_sg(prot_int, &sgx, &partial)) { | |
882 | ||
883 | sle_dma = sgx.dma_addr; | |
884 | sle_dma_len = sgx.dma_len; | |
885 | alloc_and_fill: | |
886 | /* Allocate additional continuation packets? */ | |
887 | if (avail_dsds == 0) { | |
888 | avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? | |
889 | QLA_DSDS_PER_IOCB : used_dsds; | |
890 | dsd_list_len = (avail_dsds + 1) * 12; | |
891 | used_dsds -= avail_dsds; | |
892 | ||
893 | /* allocate tracking DS */ | |
894 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
895 | if (!dsd_ptr) | |
896 | return 1; | |
897 | ||
898 | /* allocate new list */ | |
899 | dsd_ptr->dsd_addr = next_dsd = | |
900 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, | |
901 | &dsd_ptr->dsd_list_dma); | |
902 | ||
903 | if (!next_dsd) { | |
904 | /* | |
905 | * Need to cleanup only this dsd_ptr, rest | |
906 | * will be done by sp_free_dma() | |
907 | */ | |
908 | kfree(dsd_ptr); | |
909 | return 1; | |
910 | } | |
911 | ||
912 | list_add_tail(&dsd_ptr->list, | |
913 | &((struct crc_context *)sp->ctx)->dsd_list); | |
914 | ||
915 | sp->flags |= SRB_CRC_CTX_DSD_VALID; | |
916 | ||
917 | /* add new list to cmd iocb or last list */ | |
918 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
919 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
920 | *cur_dsd++ = dsd_list_len; | |
921 | cur_dsd = (uint32_t *)next_dsd; | |
922 | } | |
923 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
924 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
925 | *cur_dsd++ = cpu_to_le32(sle_dma_len); | |
926 | avail_dsds--; | |
927 | ||
928 | if (partial == 0) { | |
929 | /* Got a full protection interval */ | |
930 | sle_dma = sg_dma_address(sg_prot) + tot_prot_dma_len; | |
931 | sle_dma_len = 8; | |
bad75002 | 932 | |
8cb2049c AE |
933 | tot_prot_dma_len += sle_dma_len; |
934 | if (tot_prot_dma_len == sg_dma_len(sg_prot)) { | |
935 | tot_prot_dma_len = 0; | |
936 | sg_prot = sg_next(sg_prot); | |
937 | } | |
938 | ||
939 | partial = 1; /* So as to not re-enter this block */ | |
940 | goto alloc_and_fill; | |
941 | } | |
942 | } | |
943 | /* Null termination */ | |
944 | *cur_dsd++ = 0; | |
945 | *cur_dsd++ = 0; | |
946 | *cur_dsd++ = 0; | |
947 | return 0; | |
948 | } | |
bad75002 AE |
949 | static int |
950 | qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, uint32_t *dsd, | |
951 | uint16_t tot_dsds) | |
952 | { | |
953 | void *next_dsd; | |
954 | uint8_t avail_dsds = 0; | |
955 | uint32_t dsd_list_len; | |
956 | struct dsd_dma *dsd_ptr; | |
957 | struct scatterlist *sg; | |
958 | uint32_t *cur_dsd = dsd; | |
959 | int i; | |
960 | uint16_t used_dsds = tot_dsds; | |
7c3df132 | 961 | scsi_qla_host_t *vha = shost_priv(sp->cmd->device->host); |
bad75002 AE |
962 | |
963 | uint8_t *cp; | |
964 | ||
965 | scsi_for_each_sg(sp->cmd, sg, tot_dsds, i) { | |
966 | dma_addr_t sle_dma; | |
967 | ||
968 | /* Allocate additional continuation packets? */ | |
969 | if (avail_dsds == 0) { | |
970 | avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? | |
971 | QLA_DSDS_PER_IOCB : used_dsds; | |
972 | dsd_list_len = (avail_dsds + 1) * 12; | |
973 | used_dsds -= avail_dsds; | |
974 | ||
975 | /* allocate tracking DS */ | |
976 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
977 | if (!dsd_ptr) | |
978 | return 1; | |
979 | ||
980 | /* allocate new list */ | |
981 | dsd_ptr->dsd_addr = next_dsd = | |
982 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, | |
983 | &dsd_ptr->dsd_list_dma); | |
984 | ||
985 | if (!next_dsd) { | |
986 | /* | |
987 | * Need to cleanup only this dsd_ptr, rest | |
988 | * will be done by sp_free_dma() | |
989 | */ | |
990 | kfree(dsd_ptr); | |
991 | return 1; | |
992 | } | |
993 | ||
994 | list_add_tail(&dsd_ptr->list, | |
995 | &((struct crc_context *)sp->ctx)->dsd_list); | |
996 | ||
997 | sp->flags |= SRB_CRC_CTX_DSD_VALID; | |
998 | ||
999 | /* add new list to cmd iocb or last list */ | |
1000 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
1001 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
1002 | *cur_dsd++ = dsd_list_len; | |
1003 | cur_dsd = (uint32_t *)next_dsd; | |
1004 | } | |
1005 | sle_dma = sg_dma_address(sg); | |
7c3df132 SK |
1006 | ql_dbg(ql_dbg_io, vha, 0x300a, |
1007 | "sg entry %d - addr=0x%x 0x%x, " "len=%d for cmd=%p.\n", | |
d8424f68 | 1008 | i, LSD(sle_dma), MSD(sle_dma), sg_dma_len(sg), |
7c3df132 | 1009 | sp->cmd); |
bad75002 AE |
1010 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); |
1011 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
1012 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
1013 | avail_dsds--; | |
1014 | ||
1015 | if (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_PASS) { | |
1016 | cp = page_address(sg_page(sg)) + sg->offset; | |
7c3df132 SK |
1017 | ql_dbg(ql_dbg_io, vha, 0x300b, |
1018 | "User data buffer=%p for cmd=%p.\n", cp, sp->cmd); | |
bad75002 AE |
1019 | } |
1020 | } | |
1021 | /* Null termination */ | |
1022 | *cur_dsd++ = 0; | |
1023 | *cur_dsd++ = 0; | |
1024 | *cur_dsd++ = 0; | |
1025 | return 0; | |
1026 | } | |
1027 | ||
1028 | static int | |
1029 | qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp, | |
1030 | uint32_t *dsd, | |
1031 | uint16_t tot_dsds) | |
1032 | { | |
1033 | void *next_dsd; | |
1034 | uint8_t avail_dsds = 0; | |
1035 | uint32_t dsd_list_len; | |
1036 | struct dsd_dma *dsd_ptr; | |
1037 | struct scatterlist *sg; | |
1038 | int i; | |
1039 | struct scsi_cmnd *cmd; | |
1040 | uint32_t *cur_dsd = dsd; | |
1041 | uint16_t used_dsds = tot_dsds; | |
7c3df132 | 1042 | scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); |
bad75002 AE |
1043 | uint8_t *cp; |
1044 | ||
1045 | ||
1046 | cmd = sp->cmd; | |
1047 | scsi_for_each_prot_sg(cmd, sg, tot_dsds, i) { | |
1048 | dma_addr_t sle_dma; | |
1049 | ||
1050 | /* Allocate additional continuation packets? */ | |
1051 | if (avail_dsds == 0) { | |
1052 | avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? | |
1053 | QLA_DSDS_PER_IOCB : used_dsds; | |
1054 | dsd_list_len = (avail_dsds + 1) * 12; | |
1055 | used_dsds -= avail_dsds; | |
1056 | ||
1057 | /* allocate tracking DS */ | |
1058 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
1059 | if (!dsd_ptr) | |
1060 | return 1; | |
1061 | ||
1062 | /* allocate new list */ | |
1063 | dsd_ptr->dsd_addr = next_dsd = | |
1064 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, | |
1065 | &dsd_ptr->dsd_list_dma); | |
1066 | ||
1067 | if (!next_dsd) { | |
1068 | /* | |
1069 | * Need to cleanup only this dsd_ptr, rest | |
1070 | * will be done by sp_free_dma() | |
1071 | */ | |
1072 | kfree(dsd_ptr); | |
1073 | return 1; | |
1074 | } | |
1075 | ||
1076 | list_add_tail(&dsd_ptr->list, | |
1077 | &((struct crc_context *)sp->ctx)->dsd_list); | |
1078 | ||
1079 | sp->flags |= SRB_CRC_CTX_DSD_VALID; | |
1080 | ||
1081 | /* add new list to cmd iocb or last list */ | |
1082 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
1083 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
1084 | *cur_dsd++ = dsd_list_len; | |
1085 | cur_dsd = (uint32_t *)next_dsd; | |
1086 | } | |
1087 | sle_dma = sg_dma_address(sg); | |
1088 | if (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_PASS) { | |
7c3df132 SK |
1089 | ql_dbg(ql_dbg_io, vha, 0x3027, |
1090 | "%s(): %p, sg_entry %d - " | |
1091 | "addr=0x%x0x%x, len=%d.\n", | |
1092 | __func__, cur_dsd, i, | |
1093 | LSD(sle_dma), MSD(sle_dma), sg_dma_len(sg)); | |
bad75002 AE |
1094 | } |
1095 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
1096 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
1097 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
1098 | ||
1099 | if (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_PASS) { | |
1100 | cp = page_address(sg_page(sg)) + sg->offset; | |
7c3df132 SK |
1101 | ql_dbg(ql_dbg_io, vha, 0x3028, |
1102 | "%s(): Protection Data buffer = %p.\n", __func__, | |
1103 | cp); | |
bad75002 AE |
1104 | } |
1105 | avail_dsds--; | |
1106 | } | |
1107 | /* Null termination */ | |
1108 | *cur_dsd++ = 0; | |
1109 | *cur_dsd++ = 0; | |
1110 | *cur_dsd++ = 0; | |
1111 | return 0; | |
1112 | } | |
1113 | ||
1114 | /** | |
1115 | * qla24xx_build_scsi_crc_2_iocbs() - Build IOCB command utilizing Command | |
1116 | * Type 6 IOCB types. | |
1117 | * | |
1118 | * @sp: SRB command to process | |
1119 | * @cmd_pkt: Command type 3 IOCB | |
1120 | * @tot_dsds: Total number of segments to transfer | |
1121 | */ | |
1122 | static inline int | |
1123 | qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt, | |
1124 | uint16_t tot_dsds, uint16_t tot_prot_dsds, uint16_t fw_prot_opts) | |
1125 | { | |
1126 | uint32_t *cur_dsd, *fcp_dl; | |
1127 | scsi_qla_host_t *vha; | |
1128 | struct scsi_cmnd *cmd; | |
1129 | struct scatterlist *cur_seg; | |
1130 | int sgc; | |
8cb2049c | 1131 | uint32_t total_bytes = 0; |
bad75002 AE |
1132 | uint32_t data_bytes; |
1133 | uint32_t dif_bytes; | |
1134 | uint8_t bundling = 1; | |
1135 | uint16_t blk_size; | |
1136 | uint8_t *clr_ptr; | |
1137 | struct crc_context *crc_ctx_pkt = NULL; | |
1138 | struct qla_hw_data *ha; | |
1139 | uint8_t additional_fcpcdb_len; | |
1140 | uint16_t fcp_cmnd_len; | |
1141 | struct fcp_cmnd *fcp_cmnd; | |
1142 | dma_addr_t crc_ctx_dma; | |
ff2fc42e | 1143 | char tag[2]; |
bad75002 AE |
1144 | |
1145 | cmd = sp->cmd; | |
1146 | ||
1147 | sgc = 0; | |
1148 | /* Update entry type to indicate Command Type CRC_2 IOCB */ | |
1149 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
1150 | __constant_cpu_to_le32(COMMAND_TYPE_CRC_2); | |
1151 | ||
7c3df132 SK |
1152 | vha = sp->fcport->vha; |
1153 | ha = vha->hw; | |
1154 | ||
bad75002 AE |
1155 | /* No data transfer */ |
1156 | data_bytes = scsi_bufflen(cmd); | |
1157 | if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { | |
bad75002 AE |
1158 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
1159 | return QLA_SUCCESS; | |
1160 | } | |
1161 | ||
bad75002 AE |
1162 | cmd_pkt->vp_index = sp->fcport->vp_idx; |
1163 | ||
1164 | /* Set transfer direction */ | |
1165 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { | |
1166 | cmd_pkt->control_flags = | |
1167 | __constant_cpu_to_le16(CF_WRITE_DATA); | |
1168 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
1169 | cmd_pkt->control_flags = | |
1170 | __constant_cpu_to_le16(CF_READ_DATA); | |
1171 | } | |
1172 | ||
8cb2049c AE |
1173 | if ((scsi_get_prot_op(sp->cmd) == SCSI_PROT_READ_INSERT) || |
1174 | (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_STRIP) || | |
1175 | (scsi_get_prot_op(sp->cmd) == SCSI_PROT_READ_STRIP) || | |
1176 | (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_INSERT)) | |
bad75002 AE |
1177 | bundling = 0; |
1178 | ||
1179 | /* Allocate CRC context from global pool */ | |
1180 | crc_ctx_pkt = sp->ctx = dma_pool_alloc(ha->dl_dma_pool, | |
1181 | GFP_ATOMIC, &crc_ctx_dma); | |
1182 | ||
1183 | if (!crc_ctx_pkt) | |
1184 | goto crc_queuing_error; | |
1185 | ||
1186 | /* Zero out CTX area. */ | |
1187 | clr_ptr = (uint8_t *)crc_ctx_pkt; | |
1188 | memset(clr_ptr, 0, sizeof(*crc_ctx_pkt)); | |
1189 | ||
1190 | crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma; | |
1191 | ||
1192 | sp->flags |= SRB_CRC_CTX_DMA_VALID; | |
1193 | ||
1194 | /* Set handle */ | |
1195 | crc_ctx_pkt->handle = cmd_pkt->handle; | |
1196 | ||
1197 | INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list); | |
1198 | ||
e02587d7 | 1199 | qla24xx_set_t10dif_tags(sp, (struct fw_dif_context *) |
bad75002 AE |
1200 | &crc_ctx_pkt->ref_tag, tot_prot_dsds); |
1201 | ||
1202 | cmd_pkt->crc_context_address[0] = cpu_to_le32(LSD(crc_ctx_dma)); | |
1203 | cmd_pkt->crc_context_address[1] = cpu_to_le32(MSD(crc_ctx_dma)); | |
1204 | cmd_pkt->crc_context_len = CRC_CONTEXT_LEN_FW; | |
1205 | ||
1206 | /* Determine SCSI command length -- align to 4 byte boundary */ | |
1207 | if (cmd->cmd_len > 16) { | |
bad75002 AE |
1208 | additional_fcpcdb_len = cmd->cmd_len - 16; |
1209 | if ((cmd->cmd_len % 4) != 0) { | |
1210 | /* SCSI cmd > 16 bytes must be multiple of 4 */ | |
1211 | goto crc_queuing_error; | |
1212 | } | |
1213 | fcp_cmnd_len = 12 + cmd->cmd_len + 4; | |
1214 | } else { | |
1215 | additional_fcpcdb_len = 0; | |
1216 | fcp_cmnd_len = 12 + 16 + 4; | |
1217 | } | |
1218 | ||
1219 | fcp_cmnd = &crc_ctx_pkt->fcp_cmnd; | |
1220 | ||
1221 | fcp_cmnd->additional_cdb_len = additional_fcpcdb_len; | |
1222 | if (cmd->sc_data_direction == DMA_TO_DEVICE) | |
1223 | fcp_cmnd->additional_cdb_len |= 1; | |
1224 | else if (cmd->sc_data_direction == DMA_FROM_DEVICE) | |
1225 | fcp_cmnd->additional_cdb_len |= 2; | |
1226 | ||
1227 | int_to_scsilun(sp->cmd->device->lun, &fcp_cmnd->lun); | |
1228 | memcpy(fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); | |
1229 | cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(fcp_cmnd_len); | |
1230 | cmd_pkt->fcp_cmnd_dseg_address[0] = cpu_to_le32( | |
1231 | LSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF)); | |
1232 | cmd_pkt->fcp_cmnd_dseg_address[1] = cpu_to_le32( | |
1233 | MSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF)); | |
65155b37 | 1234 | fcp_cmnd->task_management = 0; |
bad75002 | 1235 | |
ff2fc42e AV |
1236 | /* |
1237 | * Update tagged queuing modifier if using command tag queuing | |
1238 | */ | |
1239 | if (scsi_populate_tag_msg(cmd, tag)) { | |
1240 | switch (tag[0]) { | |
1241 | case HEAD_OF_QUEUE_TAG: | |
1242 | fcp_cmnd->task_attribute = TSK_HEAD_OF_QUEUE; | |
1243 | break; | |
1244 | case ORDERED_QUEUE_TAG: | |
1245 | fcp_cmnd->task_attribute = TSK_ORDERED; | |
1246 | break; | |
1247 | default: | |
1248 | fcp_cmnd->task_attribute = 0; | |
1249 | break; | |
1250 | } | |
1251 | } else { | |
1252 | fcp_cmnd->task_attribute = 0; | |
1253 | } | |
1254 | ||
bad75002 AE |
1255 | cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */ |
1256 | ||
bad75002 | 1257 | /* Compute dif len and adjust data len to incude protection */ |
bad75002 AE |
1258 | dif_bytes = 0; |
1259 | blk_size = cmd->device->sector_size; | |
8cb2049c AE |
1260 | dif_bytes = (data_bytes / blk_size) * 8; |
1261 | ||
1262 | switch (scsi_get_prot_op(sp->cmd)) { | |
1263 | case SCSI_PROT_READ_INSERT: | |
1264 | case SCSI_PROT_WRITE_STRIP: | |
1265 | total_bytes = data_bytes; | |
1266 | data_bytes += dif_bytes; | |
1267 | break; | |
1268 | ||
1269 | case SCSI_PROT_READ_STRIP: | |
1270 | case SCSI_PROT_WRITE_INSERT: | |
1271 | case SCSI_PROT_READ_PASS: | |
1272 | case SCSI_PROT_WRITE_PASS: | |
1273 | total_bytes = data_bytes + dif_bytes; | |
1274 | break; | |
1275 | default: | |
1276 | BUG(); | |
bad75002 AE |
1277 | } |
1278 | ||
e02587d7 | 1279 | if (!qla2x00_hba_err_chk_enabled(sp)) |
bad75002 AE |
1280 | fw_prot_opts |= 0x10; /* Disable Guard tag checking */ |
1281 | ||
1282 | if (!bundling) { | |
1283 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.nobundling.data_address; | |
1284 | } else { | |
1285 | /* | |
1286 | * Configure Bundling if we need to fetch interlaving | |
1287 | * protection PCI accesses | |
1288 | */ | |
1289 | fw_prot_opts |= PO_ENABLE_DIF_BUNDLING; | |
1290 | crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes); | |
1291 | crc_ctx_pkt->u.bundling.dseg_count = cpu_to_le16(tot_dsds - | |
1292 | tot_prot_dsds); | |
1293 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.data_address; | |
1294 | } | |
1295 | ||
1296 | /* Finish the common fields of CRC pkt */ | |
1297 | crc_ctx_pkt->blk_size = cpu_to_le16(blk_size); | |
1298 | crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts); | |
1299 | crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes); | |
1300 | crc_ctx_pkt->guard_seed = __constant_cpu_to_le16(0); | |
1301 | /* Fibre channel byte count */ | |
1302 | cmd_pkt->byte_count = cpu_to_le32(total_bytes); | |
1303 | fcp_dl = (uint32_t *)(crc_ctx_pkt->fcp_cmnd.cdb + 16 + | |
1304 | additional_fcpcdb_len); | |
1305 | *fcp_dl = htonl(total_bytes); | |
1306 | ||
0c470874 | 1307 | if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { |
0c470874 AE |
1308 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
1309 | return QLA_SUCCESS; | |
1310 | } | |
bad75002 AE |
1311 | /* Walks data segments */ |
1312 | ||
1313 | cmd_pkt->control_flags |= | |
1314 | __constant_cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE); | |
8cb2049c AE |
1315 | |
1316 | if (!bundling && tot_prot_dsds) { | |
1317 | if (qla24xx_walk_and_build_sglist_no_difb(ha, sp, | |
1318 | cur_dsd, tot_dsds)) | |
1319 | goto crc_queuing_error; | |
1320 | } else if (qla24xx_walk_and_build_sglist(ha, sp, cur_dsd, | |
bad75002 AE |
1321 | (tot_dsds - tot_prot_dsds))) |
1322 | goto crc_queuing_error; | |
1323 | ||
1324 | if (bundling && tot_prot_dsds) { | |
1325 | /* Walks dif segments */ | |
1326 | cur_seg = scsi_prot_sglist(cmd); | |
1327 | cmd_pkt->control_flags |= | |
1328 | __constant_cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE); | |
1329 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.dif_address; | |
1330 | if (qla24xx_walk_and_build_prot_sglist(ha, sp, cur_dsd, | |
1331 | tot_prot_dsds)) | |
1332 | goto crc_queuing_error; | |
1333 | } | |
1334 | return QLA_SUCCESS; | |
1335 | ||
1336 | crc_queuing_error: | |
bad75002 AE |
1337 | /* Cleanup will be performed by the caller */ |
1338 | ||
1339 | return QLA_FUNCTION_FAILED; | |
1340 | } | |
2b6c0cee AV |
1341 | |
1342 | /** | |
1343 | * qla24xx_start_scsi() - Send a SCSI command to the ISP | |
1344 | * @sp: command to send to the ISP | |
1345 | * | |
cc3ef7bc | 1346 | * Returns non-zero if a failure occurred, else zero. |
2b6c0cee AV |
1347 | */ |
1348 | int | |
1349 | qla24xx_start_scsi(srb_t *sp) | |
1350 | { | |
385d70b4 | 1351 | int ret, nseg; |
2b6c0cee | 1352 | unsigned long flags; |
2b6c0cee AV |
1353 | uint32_t *clr_ptr; |
1354 | uint32_t index; | |
1355 | uint32_t handle; | |
1356 | struct cmd_type_7 *cmd_pkt; | |
2b6c0cee AV |
1357 | uint16_t cnt; |
1358 | uint16_t req_cnt; | |
1359 | uint16_t tot_dsds; | |
73208dfd AC |
1360 | struct req_que *req = NULL; |
1361 | struct rsp_que *rsp = NULL; | |
1362 | struct scsi_cmnd *cmd = sp->cmd; | |
444786d7 | 1363 | struct scsi_qla_host *vha = sp->fcport->vha; |
73208dfd | 1364 | struct qla_hw_data *ha = vha->hw; |
ff2fc42e | 1365 | char tag[2]; |
2b6c0cee AV |
1366 | |
1367 | /* Setup device pointers. */ | |
1368 | ret = 0; | |
73208dfd | 1369 | |
59e0b8b0 AC |
1370 | qla25xx_set_que(sp, &rsp); |
1371 | req = vha->req; | |
73208dfd | 1372 | |
2b6c0cee AV |
1373 | /* So we know we haven't pci_map'ed anything yet */ |
1374 | tot_dsds = 0; | |
1375 | ||
1376 | /* Send marker if required */ | |
e315cd28 | 1377 | if (vha->marker_needed != 0) { |
7c3df132 SK |
1378 | if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != |
1379 | QLA_SUCCESS) | |
2b6c0cee | 1380 | return QLA_FUNCTION_FAILED; |
e315cd28 | 1381 | vha->marker_needed = 0; |
2b6c0cee AV |
1382 | } |
1383 | ||
1384 | /* Acquire ring specific lock */ | |
e315cd28 | 1385 | spin_lock_irqsave(&ha->hardware_lock, flags); |
2b6c0cee AV |
1386 | |
1387 | /* Check for room in outstanding command list. */ | |
e315cd28 | 1388 | handle = req->current_outstanding_cmd; |
2b6c0cee AV |
1389 | for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { |
1390 | handle++; | |
1391 | if (handle == MAX_OUTSTANDING_COMMANDS) | |
1392 | handle = 1; | |
e315cd28 | 1393 | if (!req->outstanding_cmds[handle]) |
2b6c0cee AV |
1394 | break; |
1395 | } | |
7c3df132 | 1396 | if (index == MAX_OUTSTANDING_COMMANDS) { |
2b6c0cee | 1397 | goto queuing_error; |
7c3df132 | 1398 | } |
2b6c0cee AV |
1399 | |
1400 | /* Map the sg table so we have an accurate count of sg entries needed */ | |
2c3dfe3f SJ |
1401 | if (scsi_sg_count(cmd)) { |
1402 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
1403 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
1404 | if (unlikely(!nseg)) | |
2b6c0cee | 1405 | goto queuing_error; |
2c3dfe3f SJ |
1406 | } else |
1407 | nseg = 0; | |
1408 | ||
385d70b4 | 1409 | tot_dsds = nseg; |
7c3df132 | 1410 | req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); |
e315cd28 | 1411 | if (req->cnt < (req_cnt + 2)) { |
08029990 | 1412 | cnt = RD_REG_DWORD_RELAXED(req->req_q_out); |
73208dfd | 1413 | |
e315cd28 AC |
1414 | if (req->ring_index < cnt) |
1415 | req->cnt = cnt - req->ring_index; | |
2b6c0cee | 1416 | else |
e315cd28 AC |
1417 | req->cnt = req->length - |
1418 | (req->ring_index - cnt); | |
2b6c0cee | 1419 | } |
e315cd28 | 1420 | if (req->cnt < (req_cnt + 2)) |
2b6c0cee | 1421 | goto queuing_error; |
2b6c0cee AV |
1422 | |
1423 | /* Build command packet. */ | |
e315cd28 AC |
1424 | req->current_outstanding_cmd = handle; |
1425 | req->outstanding_cmds[handle] = sp; | |
cf53b069 | 1426 | sp->handle = handle; |
2b6c0cee | 1427 | sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
e315cd28 | 1428 | req->cnt -= req_cnt; |
2b6c0cee | 1429 | |
e315cd28 | 1430 | cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; |
2afa19a9 | 1431 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); |
2b6c0cee AV |
1432 | |
1433 | /* Zero out remaining portion of packet. */ | |
72df8325 | 1434 | /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ |
2b6c0cee AV |
1435 | clr_ptr = (uint32_t *)cmd_pkt + 2; |
1436 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
1437 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
1438 | ||
1439 | /* Set NPORT-ID and LUN number*/ | |
1440 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1441 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1442 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
1443 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
2c3dfe3f | 1444 | cmd_pkt->vp_index = sp->fcport->vp_idx; |
2b6c0cee | 1445 | |
661c3f6c | 1446 | int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun); |
0d4be124 | 1447 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); |
2b6c0cee | 1448 | |
ff2fc42e AV |
1449 | /* Update tagged queuing modifier -- default is TSK_SIMPLE (0). */ |
1450 | if (scsi_populate_tag_msg(cmd, tag)) { | |
1451 | switch (tag[0]) { | |
1452 | case HEAD_OF_QUEUE_TAG: | |
1453 | cmd_pkt->task = TSK_HEAD_OF_QUEUE; | |
1454 | break; | |
1455 | case ORDERED_QUEUE_TAG: | |
1456 | cmd_pkt->task = TSK_ORDERED; | |
1457 | break; | |
1458 | } | |
1459 | } | |
1460 | ||
2b6c0cee AV |
1461 | /* Load SCSI command packet. */ |
1462 | memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); | |
1463 | host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); | |
1464 | ||
385d70b4 | 1465 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); |
2b6c0cee AV |
1466 | |
1467 | /* Build IOCB segments */ | |
1468 | qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds); | |
1469 | ||
1470 | /* Set total data segment count. */ | |
1471 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
2afa19a9 AC |
1472 | /* Specify response queue number where completion should happen */ |
1473 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
2b6c0cee | 1474 | wmb(); |
2b6c0cee | 1475 | /* Adjust ring index. */ |
e315cd28 AC |
1476 | req->ring_index++; |
1477 | if (req->ring_index == req->length) { | |
1478 | req->ring_index = 0; | |
1479 | req->ring_ptr = req->ring; | |
2b6c0cee | 1480 | } else |
e315cd28 | 1481 | req->ring_ptr++; |
2b6c0cee AV |
1482 | |
1483 | sp->flags |= SRB_DMA_VALID; | |
2b6c0cee AV |
1484 | |
1485 | /* Set chip new ring index. */ | |
08029990 AV |
1486 | WRT_REG_DWORD(req->req_q_in, req->ring_index); |
1487 | RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); | |
2b6c0cee | 1488 | |
4fdfefe5 | 1489 | /* Manage unprocessed RIO/ZIO commands in response queue. */ |
e315cd28 | 1490 | if (vha->flags.process_response_queue && |
73208dfd | 1491 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) |
2afa19a9 | 1492 | qla24xx_process_response_queue(vha, rsp); |
4fdfefe5 | 1493 | |
e315cd28 | 1494 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
2b6c0cee AV |
1495 | return QLA_SUCCESS; |
1496 | ||
1497 | queuing_error: | |
385d70b4 FT |
1498 | if (tot_dsds) |
1499 | scsi_dma_unmap(cmd); | |
1500 | ||
e315cd28 | 1501 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
2b6c0cee AV |
1502 | |
1503 | return QLA_FUNCTION_FAILED; | |
1da177e4 | 1504 | } |
68ca949c | 1505 | |
bad75002 AE |
1506 | |
1507 | /** | |
1508 | * qla24xx_dif_start_scsi() - Send a SCSI command to the ISP | |
1509 | * @sp: command to send to the ISP | |
1510 | * | |
1511 | * Returns non-zero if a failure occurred, else zero. | |
1512 | */ | |
1513 | int | |
1514 | qla24xx_dif_start_scsi(srb_t *sp) | |
1515 | { | |
1516 | int nseg; | |
1517 | unsigned long flags; | |
1518 | uint32_t *clr_ptr; | |
1519 | uint32_t index; | |
1520 | uint32_t handle; | |
1521 | uint16_t cnt; | |
1522 | uint16_t req_cnt = 0; | |
1523 | uint16_t tot_dsds; | |
1524 | uint16_t tot_prot_dsds; | |
1525 | uint16_t fw_prot_opts = 0; | |
1526 | struct req_que *req = NULL; | |
1527 | struct rsp_que *rsp = NULL; | |
1528 | struct scsi_cmnd *cmd = sp->cmd; | |
1529 | struct scsi_qla_host *vha = sp->fcport->vha; | |
1530 | struct qla_hw_data *ha = vha->hw; | |
1531 | struct cmd_type_crc_2 *cmd_pkt; | |
1532 | uint32_t status = 0; | |
1533 | ||
1534 | #define QDSS_GOT_Q_SPACE BIT_0 | |
1535 | ||
0c470874 AE |
1536 | /* Only process protection or >16 cdb in this routine */ |
1537 | if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) { | |
1538 | if (cmd->cmd_len <= 16) | |
1539 | return qla24xx_start_scsi(sp); | |
1540 | } | |
bad75002 AE |
1541 | |
1542 | /* Setup device pointers. */ | |
1543 | ||
1544 | qla25xx_set_que(sp, &rsp); | |
1545 | req = vha->req; | |
1546 | ||
1547 | /* So we know we haven't pci_map'ed anything yet */ | |
1548 | tot_dsds = 0; | |
1549 | ||
1550 | /* Send marker if required */ | |
1551 | if (vha->marker_needed != 0) { | |
1552 | if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != | |
1553 | QLA_SUCCESS) | |
1554 | return QLA_FUNCTION_FAILED; | |
1555 | vha->marker_needed = 0; | |
1556 | } | |
1557 | ||
1558 | /* Acquire ring specific lock */ | |
1559 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
1560 | ||
1561 | /* Check for room in outstanding command list. */ | |
1562 | handle = req->current_outstanding_cmd; | |
1563 | for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { | |
1564 | handle++; | |
1565 | if (handle == MAX_OUTSTANDING_COMMANDS) | |
1566 | handle = 1; | |
1567 | if (!req->outstanding_cmds[handle]) | |
1568 | break; | |
1569 | } | |
1570 | ||
1571 | if (index == MAX_OUTSTANDING_COMMANDS) | |
1572 | goto queuing_error; | |
1573 | ||
1574 | /* Compute number of required data segments */ | |
1575 | /* Map the sg table so we have an accurate count of sg entries needed */ | |
1576 | if (scsi_sg_count(cmd)) { | |
1577 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
1578 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
1579 | if (unlikely(!nseg)) | |
1580 | goto queuing_error; | |
1581 | else | |
1582 | sp->flags |= SRB_DMA_VALID; | |
8cb2049c AE |
1583 | |
1584 | if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || | |
1585 | (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { | |
1586 | struct qla2_sgx sgx; | |
1587 | uint32_t partial; | |
1588 | ||
1589 | memset(&sgx, 0, sizeof(struct qla2_sgx)); | |
1590 | sgx.tot_bytes = scsi_bufflen(cmd); | |
1591 | sgx.cur_sg = scsi_sglist(cmd); | |
1592 | sgx.sp = sp; | |
1593 | ||
1594 | nseg = 0; | |
1595 | while (qla24xx_get_one_block_sg( | |
1596 | cmd->device->sector_size, &sgx, &partial)) | |
1597 | nseg++; | |
1598 | } | |
bad75002 AE |
1599 | } else |
1600 | nseg = 0; | |
1601 | ||
1602 | /* number of required data segments */ | |
1603 | tot_dsds = nseg; | |
1604 | ||
1605 | /* Compute number of required protection segments */ | |
1606 | if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) { | |
1607 | nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd), | |
1608 | scsi_prot_sg_count(cmd), cmd->sc_data_direction); | |
1609 | if (unlikely(!nseg)) | |
1610 | goto queuing_error; | |
1611 | else | |
1612 | sp->flags |= SRB_CRC_PROT_DMA_VALID; | |
8cb2049c AE |
1613 | |
1614 | if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || | |
1615 | (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { | |
1616 | nseg = scsi_bufflen(cmd) / cmd->device->sector_size; | |
1617 | } | |
bad75002 AE |
1618 | } else { |
1619 | nseg = 0; | |
1620 | } | |
1621 | ||
1622 | req_cnt = 1; | |
1623 | /* Total Data and protection sg segment(s) */ | |
1624 | tot_prot_dsds = nseg; | |
1625 | tot_dsds += nseg; | |
1626 | if (req->cnt < (req_cnt + 2)) { | |
1627 | cnt = RD_REG_DWORD_RELAXED(req->req_q_out); | |
1628 | ||
1629 | if (req->ring_index < cnt) | |
1630 | req->cnt = cnt - req->ring_index; | |
1631 | else | |
1632 | req->cnt = req->length - | |
1633 | (req->ring_index - cnt); | |
1634 | } | |
1635 | ||
1636 | if (req->cnt < (req_cnt + 2)) | |
1637 | goto queuing_error; | |
1638 | ||
1639 | status |= QDSS_GOT_Q_SPACE; | |
1640 | ||
1641 | /* Build header part of command packet (excluding the OPCODE). */ | |
1642 | req->current_outstanding_cmd = handle; | |
1643 | req->outstanding_cmds[handle] = sp; | |
8cb2049c | 1644 | sp->handle = handle; |
bad75002 AE |
1645 | sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
1646 | req->cnt -= req_cnt; | |
1647 | ||
1648 | /* Fill-in common area */ | |
1649 | cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr; | |
1650 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); | |
1651 | ||
1652 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
1653 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
1654 | ||
1655 | /* Set NPORT-ID and LUN number*/ | |
1656 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1657 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1658 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
1659 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
1660 | ||
1661 | int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun); | |
1662 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); | |
1663 | ||
1664 | /* Total Data and protection segment(s) */ | |
1665 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
1666 | ||
1667 | /* Build IOCB segments and adjust for data protection segments */ | |
1668 | if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *) | |
1669 | req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) != | |
1670 | QLA_SUCCESS) | |
1671 | goto queuing_error; | |
1672 | ||
1673 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
1674 | /* Specify response queue number where completion should happen */ | |
1675 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
1676 | cmd_pkt->timeout = __constant_cpu_to_le16(0); | |
1677 | wmb(); | |
1678 | ||
1679 | /* Adjust ring index. */ | |
1680 | req->ring_index++; | |
1681 | if (req->ring_index == req->length) { | |
1682 | req->ring_index = 0; | |
1683 | req->ring_ptr = req->ring; | |
1684 | } else | |
1685 | req->ring_ptr++; | |
1686 | ||
1687 | /* Set chip new ring index. */ | |
1688 | WRT_REG_DWORD(req->req_q_in, req->ring_index); | |
1689 | RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); | |
1690 | ||
1691 | /* Manage unprocessed RIO/ZIO commands in response queue. */ | |
1692 | if (vha->flags.process_response_queue && | |
1693 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) | |
1694 | qla24xx_process_response_queue(vha, rsp); | |
1695 | ||
1696 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
1697 | ||
1698 | return QLA_SUCCESS; | |
1699 | ||
1700 | queuing_error: | |
1701 | if (status & QDSS_GOT_Q_SPACE) { | |
1702 | req->outstanding_cmds[handle] = NULL; | |
1703 | req->cnt += req_cnt; | |
1704 | } | |
1705 | /* Cleanup will be performed by the caller (queuecommand) */ | |
1706 | ||
1707 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
bad75002 AE |
1708 | return QLA_FUNCTION_FAILED; |
1709 | } | |
1710 | ||
1711 | ||
59e0b8b0 | 1712 | static void qla25xx_set_que(srb_t *sp, struct rsp_que **rsp) |
68ca949c AC |
1713 | { |
1714 | struct scsi_cmnd *cmd = sp->cmd; | |
68ca949c AC |
1715 | struct qla_hw_data *ha = sp->fcport->vha->hw; |
1716 | int affinity = cmd->request->cpu; | |
1717 | ||
7163ea81 | 1718 | if (ha->flags.cpu_affinity_enabled && affinity >= 0 && |
59e0b8b0 | 1719 | affinity < ha->max_rsp_queues - 1) |
68ca949c | 1720 | *rsp = ha->rsp_q_map[affinity + 1]; |
59e0b8b0 | 1721 | else |
68ca949c | 1722 | *rsp = ha->rsp_q_map[0]; |
68ca949c | 1723 | } |
ac280b67 AV |
1724 | |
1725 | /* Generic Control-SRB manipulation functions. */ | |
d94d10e7 GM |
1726 | void * |
1727 | qla2x00_alloc_iocbs(scsi_qla_host_t *vha, srb_t *sp) | |
ac280b67 | 1728 | { |
ac280b67 AV |
1729 | struct qla_hw_data *ha = vha->hw; |
1730 | struct req_que *req = ha->req_q_map[0]; | |
1731 | device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id); | |
1732 | uint32_t index, handle; | |
1733 | request_t *pkt; | |
1734 | uint16_t cnt, req_cnt; | |
1735 | ||
1736 | pkt = NULL; | |
1737 | req_cnt = 1; | |
d94d10e7 GM |
1738 | handle = 0; |
1739 | ||
1740 | if (!sp) | |
1741 | goto skip_cmd_array; | |
ac280b67 AV |
1742 | |
1743 | /* Check for room in outstanding command list. */ | |
1744 | handle = req->current_outstanding_cmd; | |
1745 | for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { | |
1746 | handle++; | |
1747 | if (handle == MAX_OUTSTANDING_COMMANDS) | |
1748 | handle = 1; | |
1749 | if (!req->outstanding_cmds[handle]) | |
1750 | break; | |
1751 | } | |
7c3df132 SK |
1752 | if (index == MAX_OUTSTANDING_COMMANDS) { |
1753 | ql_log(ql_log_warn, vha, 0x700b, | |
1754 | "No room on oustanding cmd array.\n"); | |
ac280b67 | 1755 | goto queuing_error; |
7c3df132 | 1756 | } |
ac280b67 | 1757 | |
d94d10e7 GM |
1758 | /* Prep command array. */ |
1759 | req->current_outstanding_cmd = handle; | |
1760 | req->outstanding_cmds[handle] = sp; | |
1761 | sp->handle = handle; | |
1762 | ||
1763 | skip_cmd_array: | |
ac280b67 AV |
1764 | /* Check for room on request queue. */ |
1765 | if (req->cnt < req_cnt) { | |
1766 | if (ha->mqenable) | |
1767 | cnt = RD_REG_DWORD(®->isp25mq.req_q_out); | |
d94d10e7 GM |
1768 | else if (IS_QLA82XX(ha)) |
1769 | cnt = RD_REG_DWORD(®->isp82.req_q_out); | |
ac280b67 AV |
1770 | else if (IS_FWI2_CAPABLE(ha)) |
1771 | cnt = RD_REG_DWORD(®->isp24.req_q_out); | |
1772 | else | |
1773 | cnt = qla2x00_debounce_register( | |
1774 | ISP_REQ_Q_OUT(ha, ®->isp)); | |
1775 | ||
1776 | if (req->ring_index < cnt) | |
1777 | req->cnt = cnt - req->ring_index; | |
1778 | else | |
1779 | req->cnt = req->length - | |
1780 | (req->ring_index - cnt); | |
1781 | } | |
1782 | if (req->cnt < req_cnt) | |
1783 | goto queuing_error; | |
1784 | ||
1785 | /* Prep packet */ | |
ac280b67 | 1786 | req->cnt -= req_cnt; |
ac280b67 AV |
1787 | pkt = req->ring_ptr; |
1788 | memset(pkt, 0, REQUEST_ENTRY_SIZE); | |
1789 | pkt->entry_count = req_cnt; | |
1790 | pkt->handle = handle; | |
ac280b67 AV |
1791 | |
1792 | queuing_error: | |
1793 | return pkt; | |
1794 | } | |
1795 | ||
1796 | static void | |
1797 | qla2x00_start_iocbs(srb_t *sp) | |
1798 | { | |
1799 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
1800 | struct req_que *req = ha->req_q_map[0]; | |
1801 | device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id); | |
1802 | struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp; | |
1803 | ||
a9083016 GM |
1804 | if (IS_QLA82XX(ha)) { |
1805 | qla82xx_start_iocbs(sp); | |
ac280b67 | 1806 | } else { |
a9083016 GM |
1807 | /* Adjust ring index. */ |
1808 | req->ring_index++; | |
1809 | if (req->ring_index == req->length) { | |
1810 | req->ring_index = 0; | |
1811 | req->ring_ptr = req->ring; | |
1812 | } else | |
1813 | req->ring_ptr++; | |
1814 | ||
1815 | /* Set chip new ring index. */ | |
1816 | if (ha->mqenable) { | |
1817 | WRT_REG_DWORD(®->isp25mq.req_q_in, req->ring_index); | |
1818 | RD_REG_DWORD(&ioreg->hccr); | |
1819 | } else if (IS_QLA82XX(ha)) { | |
1820 | qla82xx_start_iocbs(sp); | |
1821 | } else if (IS_FWI2_CAPABLE(ha)) { | |
1822 | WRT_REG_DWORD(®->isp24.req_q_in, req->ring_index); | |
1823 | RD_REG_DWORD_RELAXED(®->isp24.req_q_in); | |
1824 | } else { | |
1825 | WRT_REG_WORD(ISP_REQ_Q_IN(ha, ®->isp), | |
1826 | req->ring_index); | |
1827 | RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, ®->isp)); | |
1828 | } | |
ac280b67 AV |
1829 | } |
1830 | } | |
1831 | ||
1832 | static void | |
1833 | qla24xx_login_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1834 | { | |
4916392b MI |
1835 | struct srb_ctx *ctx = sp->ctx; |
1836 | struct srb_iocb *lio = ctx->u.iocb_cmd; | |
ac280b67 AV |
1837 | |
1838 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1839 | logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI); | |
4916392b | 1840 | if (lio->u.logio.flags & SRB_LOGIN_COND_PLOGI) |
ac280b67 | 1841 | logio->control_flags |= cpu_to_le16(LCF_COND_PLOGI); |
4916392b | 1842 | if (lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI) |
ac280b67 AV |
1843 | logio->control_flags |= cpu_to_le16(LCF_SKIP_PRLI); |
1844 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1845 | logio->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1846 | logio->port_id[1] = sp->fcport->d_id.b.area; | |
1847 | logio->port_id[2] = sp->fcport->d_id.b.domain; | |
1848 | logio->vp_index = sp->fcport->vp_idx; | |
1849 | } | |
1850 | ||
1851 | static void | |
1852 | qla2x00_login_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1853 | { | |
1854 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
4916392b MI |
1855 | struct srb_ctx *ctx = sp->ctx; |
1856 | struct srb_iocb *lio = ctx->u.iocb_cmd; | |
ac280b67 AV |
1857 | uint16_t opts; |
1858 | ||
b963752f | 1859 | mbx->entry_type = MBX_IOCB_TYPE; |
ac280b67 AV |
1860 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); |
1861 | mbx->mb0 = cpu_to_le16(MBC_LOGIN_FABRIC_PORT); | |
4916392b MI |
1862 | opts = lio->u.logio.flags & SRB_LOGIN_COND_PLOGI ? BIT_0 : 0; |
1863 | opts |= lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI ? BIT_1 : 0; | |
ac280b67 AV |
1864 | if (HAS_EXTENDED_IDS(ha)) { |
1865 | mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); | |
1866 | mbx->mb10 = cpu_to_le16(opts); | |
1867 | } else { | |
1868 | mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | opts); | |
1869 | } | |
1870 | mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); | |
1871 | mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | | |
1872 | sp->fcport->d_id.b.al_pa); | |
1873 | mbx->mb9 = cpu_to_le16(sp->fcport->vp_idx); | |
1874 | } | |
1875 | ||
1876 | static void | |
1877 | qla24xx_logout_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1878 | { | |
1879 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1880 | logio->control_flags = | |
1881 | cpu_to_le16(LCF_COMMAND_LOGO|LCF_IMPL_LOGO); | |
1882 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1883 | logio->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1884 | logio->port_id[1] = sp->fcport->d_id.b.area; | |
1885 | logio->port_id[2] = sp->fcport->d_id.b.domain; | |
1886 | logio->vp_index = sp->fcport->vp_idx; | |
1887 | } | |
1888 | ||
1889 | static void | |
1890 | qla2x00_logout_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1891 | { | |
1892 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
1893 | ||
b963752f | 1894 | mbx->entry_type = MBX_IOCB_TYPE; |
ac280b67 AV |
1895 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); |
1896 | mbx->mb0 = cpu_to_le16(MBC_LOGOUT_FABRIC_PORT); | |
1897 | mbx->mb1 = HAS_EXTENDED_IDS(ha) ? | |
1898 | cpu_to_le16(sp->fcport->loop_id): | |
1899 | cpu_to_le16(sp->fcport->loop_id << 8); | |
1900 | mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); | |
1901 | mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | | |
1902 | sp->fcport->d_id.b.al_pa); | |
1903 | mbx->mb9 = cpu_to_le16(sp->fcport->vp_idx); | |
1904 | /* Implicit: mbx->mbx10 = 0. */ | |
1905 | } | |
1906 | ||
5ff1d584 AV |
1907 | static void |
1908 | qla24xx_adisc_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1909 | { | |
1910 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1911 | logio->control_flags = cpu_to_le16(LCF_COMMAND_ADISC); | |
1912 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1913 | logio->vp_index = sp->fcport->vp_idx; | |
1914 | } | |
1915 | ||
1916 | static void | |
1917 | qla2x00_adisc_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1918 | { | |
1919 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
1920 | ||
1921 | mbx->entry_type = MBX_IOCB_TYPE; | |
1922 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); | |
1923 | mbx->mb0 = cpu_to_le16(MBC_GET_PORT_DATABASE); | |
1924 | if (HAS_EXTENDED_IDS(ha)) { | |
1925 | mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); | |
1926 | mbx->mb10 = cpu_to_le16(BIT_0); | |
1927 | } else { | |
1928 | mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | BIT_0); | |
1929 | } | |
1930 | mbx->mb2 = cpu_to_le16(MSW(ha->async_pd_dma)); | |
1931 | mbx->mb3 = cpu_to_le16(LSW(ha->async_pd_dma)); | |
1932 | mbx->mb6 = cpu_to_le16(MSW(MSD(ha->async_pd_dma))); | |
1933 | mbx->mb7 = cpu_to_le16(LSW(MSD(ha->async_pd_dma))); | |
1934 | mbx->mb9 = cpu_to_le16(sp->fcport->vp_idx); | |
1935 | } | |
1936 | ||
3822263e MI |
1937 | static void |
1938 | qla24xx_tm_iocb(srb_t *sp, struct tsk_mgmt_entry *tsk) | |
1939 | { | |
1940 | uint32_t flags; | |
1941 | unsigned int lun; | |
1942 | struct fc_port *fcport = sp->fcport; | |
1943 | scsi_qla_host_t *vha = fcport->vha; | |
1944 | struct qla_hw_data *ha = vha->hw; | |
1945 | struct srb_ctx *ctx = sp->ctx; | |
1946 | struct srb_iocb *iocb = ctx->u.iocb_cmd; | |
1947 | struct req_que *req = vha->req; | |
1948 | ||
1949 | flags = iocb->u.tmf.flags; | |
1950 | lun = iocb->u.tmf.lun; | |
1951 | ||
1952 | tsk->entry_type = TSK_MGMT_IOCB_TYPE; | |
1953 | tsk->entry_count = 1; | |
1954 | tsk->handle = MAKE_HANDLE(req->id, tsk->handle); | |
1955 | tsk->nport_handle = cpu_to_le16(fcport->loop_id); | |
1956 | tsk->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); | |
1957 | tsk->control_flags = cpu_to_le32(flags); | |
1958 | tsk->port_id[0] = fcport->d_id.b.al_pa; | |
1959 | tsk->port_id[1] = fcport->d_id.b.area; | |
1960 | tsk->port_id[2] = fcport->d_id.b.domain; | |
1961 | tsk->vp_index = fcport->vp_idx; | |
1962 | ||
1963 | if (flags == TCF_LUN_RESET) { | |
1964 | int_to_scsilun(lun, &tsk->lun); | |
1965 | host_to_fcp_swap((uint8_t *)&tsk->lun, | |
1966 | sizeof(tsk->lun)); | |
1967 | } | |
1968 | } | |
1969 | ||
9a069e19 GM |
1970 | static void |
1971 | qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) | |
1972 | { | |
4916392b | 1973 | struct fc_bsg_job *bsg_job = ((struct srb_ctx *)sp->ctx)->u.bsg_job; |
9a069e19 GM |
1974 | |
1975 | els_iocb->entry_type = ELS_IOCB_TYPE; | |
1976 | els_iocb->entry_count = 1; | |
1977 | els_iocb->sys_define = 0; | |
1978 | els_iocb->entry_status = 0; | |
1979 | els_iocb->handle = sp->handle; | |
1980 | els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1981 | els_iocb->tx_dsd_count = __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
1982 | els_iocb->vp_index = sp->fcport->vp_idx; | |
1983 | els_iocb->sof_type = EST_SOFI3; | |
1984 | els_iocb->rx_dsd_count = __constant_cpu_to_le16(bsg_job->reply_payload.sg_cnt); | |
1985 | ||
4916392b MI |
1986 | els_iocb->opcode = |
1987 | (((struct srb_ctx *)sp->ctx)->type == SRB_ELS_CMD_RPT) ? | |
1988 | bsg_job->request->rqst_data.r_els.els_code : | |
1989 | bsg_job->request->rqst_data.h_els.command_code; | |
9a069e19 GM |
1990 | els_iocb->port_id[0] = sp->fcport->d_id.b.al_pa; |
1991 | els_iocb->port_id[1] = sp->fcport->d_id.b.area; | |
1992 | els_iocb->port_id[2] = sp->fcport->d_id.b.domain; | |
1993 | els_iocb->control_flags = 0; | |
1994 | els_iocb->rx_byte_count = | |
1995 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
1996 | els_iocb->tx_byte_count = | |
1997 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
1998 | ||
1999 | els_iocb->tx_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2000 | (bsg_job->request_payload.sg_list))); | |
2001 | els_iocb->tx_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2002 | (bsg_job->request_payload.sg_list))); | |
2003 | els_iocb->tx_len = cpu_to_le32(sg_dma_len | |
2004 | (bsg_job->request_payload.sg_list)); | |
2005 | ||
2006 | els_iocb->rx_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2007 | (bsg_job->reply_payload.sg_list))); | |
2008 | els_iocb->rx_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2009 | (bsg_job->reply_payload.sg_list))); | |
2010 | els_iocb->rx_len = cpu_to_le32(sg_dma_len | |
2011 | (bsg_job->reply_payload.sg_list)); | |
2012 | } | |
2013 | ||
9bc4f4fb HZ |
2014 | static void |
2015 | qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb) | |
2016 | { | |
2017 | uint16_t avail_dsds; | |
2018 | uint32_t *cur_dsd; | |
2019 | struct scatterlist *sg; | |
2020 | int index; | |
2021 | uint16_t tot_dsds; | |
2022 | scsi_qla_host_t *vha = sp->fcport->vha; | |
2023 | struct qla_hw_data *ha = vha->hw; | |
2024 | struct fc_bsg_job *bsg_job = ((struct srb_ctx *)sp->ctx)->u.bsg_job; | |
2025 | int loop_iterartion = 0; | |
2026 | int cont_iocb_prsnt = 0; | |
2027 | int entry_count = 1; | |
2028 | ||
2029 | memset(ct_iocb, 0, sizeof(ms_iocb_entry_t)); | |
2030 | ct_iocb->entry_type = CT_IOCB_TYPE; | |
2031 | ct_iocb->entry_status = 0; | |
2032 | ct_iocb->handle1 = sp->handle; | |
2033 | SET_TARGET_ID(ha, ct_iocb->loop_id, sp->fcport->loop_id); | |
2034 | ct_iocb->status = __constant_cpu_to_le16(0); | |
2035 | ct_iocb->control_flags = __constant_cpu_to_le16(0); | |
2036 | ct_iocb->timeout = 0; | |
2037 | ct_iocb->cmd_dsd_count = | |
2038 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
2039 | ct_iocb->total_dsd_count = | |
2040 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt + 1); | |
2041 | ct_iocb->req_bytecount = | |
2042 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
2043 | ct_iocb->rsp_bytecount = | |
2044 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
2045 | ||
2046 | ct_iocb->dseg_req_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2047 | (bsg_job->request_payload.sg_list))); | |
2048 | ct_iocb->dseg_req_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2049 | (bsg_job->request_payload.sg_list))); | |
2050 | ct_iocb->dseg_req_length = ct_iocb->req_bytecount; | |
2051 | ||
2052 | ct_iocb->dseg_rsp_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2053 | (bsg_job->reply_payload.sg_list))); | |
2054 | ct_iocb->dseg_rsp_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2055 | (bsg_job->reply_payload.sg_list))); | |
2056 | ct_iocb->dseg_rsp_length = ct_iocb->rsp_bytecount; | |
2057 | ||
2058 | avail_dsds = 1; | |
2059 | cur_dsd = (uint32_t *)ct_iocb->dseg_rsp_address; | |
2060 | index = 0; | |
2061 | tot_dsds = bsg_job->reply_payload.sg_cnt; | |
2062 | ||
2063 | for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) { | |
2064 | dma_addr_t sle_dma; | |
2065 | cont_a64_entry_t *cont_pkt; | |
2066 | ||
2067 | /* Allocate additional continuation packets? */ | |
2068 | if (avail_dsds == 0) { | |
2069 | /* | |
2070 | * Five DSDs are available in the Cont. | |
2071 | * Type 1 IOCB. | |
2072 | */ | |
0d2aa38e GM |
2073 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, |
2074 | vha->hw->req_q_map[0]); | |
9bc4f4fb HZ |
2075 | cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; |
2076 | avail_dsds = 5; | |
2077 | cont_iocb_prsnt = 1; | |
2078 | entry_count++; | |
2079 | } | |
2080 | ||
2081 | sle_dma = sg_dma_address(sg); | |
2082 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
2083 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
2084 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
2085 | loop_iterartion++; | |
2086 | avail_dsds--; | |
2087 | } | |
2088 | ct_iocb->entry_count = entry_count; | |
2089 | } | |
2090 | ||
9a069e19 GM |
2091 | static void |
2092 | qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb) | |
2093 | { | |
2094 | uint16_t avail_dsds; | |
2095 | uint32_t *cur_dsd; | |
2096 | struct scatterlist *sg; | |
2097 | int index; | |
2098 | uint16_t tot_dsds; | |
2099 | scsi_qla_host_t *vha = sp->fcport->vha; | |
0d2aa38e | 2100 | struct qla_hw_data *ha = vha->hw; |
4916392b | 2101 | struct fc_bsg_job *bsg_job = ((struct srb_ctx *)sp->ctx)->u.bsg_job; |
9a069e19 GM |
2102 | int loop_iterartion = 0; |
2103 | int cont_iocb_prsnt = 0; | |
2104 | int entry_count = 1; | |
2105 | ||
2106 | ct_iocb->entry_type = CT_IOCB_TYPE; | |
2107 | ct_iocb->entry_status = 0; | |
2108 | ct_iocb->sys_define = 0; | |
2109 | ct_iocb->handle = sp->handle; | |
2110 | ||
2111 | ct_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
2112 | ct_iocb->vp_index = sp->fcport->vp_idx; | |
2113 | ct_iocb->comp_status = __constant_cpu_to_le16(0); | |
2114 | ||
2115 | ct_iocb->cmd_dsd_count = | |
2116 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
2117 | ct_iocb->timeout = 0; | |
2118 | ct_iocb->rsp_dsd_count = | |
2119 | __constant_cpu_to_le16(bsg_job->reply_payload.sg_cnt); | |
2120 | ct_iocb->rsp_byte_count = | |
2121 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
2122 | ct_iocb->cmd_byte_count = | |
2123 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
2124 | ct_iocb->dseg_0_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2125 | (bsg_job->request_payload.sg_list))); | |
2126 | ct_iocb->dseg_0_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2127 | (bsg_job->request_payload.sg_list))); | |
2128 | ct_iocb->dseg_0_len = cpu_to_le32(sg_dma_len | |
2129 | (bsg_job->request_payload.sg_list)); | |
2130 | ||
2131 | avail_dsds = 1; | |
2132 | cur_dsd = (uint32_t *)ct_iocb->dseg_1_address; | |
2133 | index = 0; | |
2134 | tot_dsds = bsg_job->reply_payload.sg_cnt; | |
2135 | ||
2136 | for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) { | |
2137 | dma_addr_t sle_dma; | |
2138 | cont_a64_entry_t *cont_pkt; | |
2139 | ||
2140 | /* Allocate additional continuation packets? */ | |
2141 | if (avail_dsds == 0) { | |
2142 | /* | |
2143 | * Five DSDs are available in the Cont. | |
2144 | * Type 1 IOCB. | |
2145 | */ | |
0d2aa38e GM |
2146 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, |
2147 | ha->req_q_map[0]); | |
9a069e19 GM |
2148 | cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; |
2149 | avail_dsds = 5; | |
2150 | cont_iocb_prsnt = 1; | |
2151 | entry_count++; | |
2152 | } | |
2153 | ||
2154 | sle_dma = sg_dma_address(sg); | |
2155 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
2156 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
2157 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
2158 | loop_iterartion++; | |
2159 | avail_dsds--; | |
2160 | } | |
2161 | ct_iocb->entry_count = entry_count; | |
2162 | } | |
2163 | ||
ac280b67 AV |
2164 | int |
2165 | qla2x00_start_sp(srb_t *sp) | |
2166 | { | |
2167 | int rval; | |
2168 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
2169 | void *pkt; | |
2170 | struct srb_ctx *ctx = sp->ctx; | |
2171 | unsigned long flags; | |
2172 | ||
2173 | rval = QLA_FUNCTION_FAILED; | |
2174 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
d94d10e7 | 2175 | pkt = qla2x00_alloc_iocbs(sp->fcport->vha, sp); |
7c3df132 SK |
2176 | if (!pkt) { |
2177 | ql_log(ql_log_warn, sp->fcport->vha, 0x700c, | |
2178 | "qla2x00_alloc_iocbs failed.\n"); | |
ac280b67 | 2179 | goto done; |
7c3df132 | 2180 | } |
ac280b67 AV |
2181 | |
2182 | rval = QLA_SUCCESS; | |
2183 | switch (ctx->type) { | |
2184 | case SRB_LOGIN_CMD: | |
2185 | IS_FWI2_CAPABLE(ha) ? | |
5ff1d584 | 2186 | qla24xx_login_iocb(sp, pkt) : |
ac280b67 AV |
2187 | qla2x00_login_iocb(sp, pkt); |
2188 | break; | |
2189 | case SRB_LOGOUT_CMD: | |
2190 | IS_FWI2_CAPABLE(ha) ? | |
5ff1d584 | 2191 | qla24xx_logout_iocb(sp, pkt) : |
ac280b67 AV |
2192 | qla2x00_logout_iocb(sp, pkt); |
2193 | break; | |
9a069e19 GM |
2194 | case SRB_ELS_CMD_RPT: |
2195 | case SRB_ELS_CMD_HST: | |
2196 | qla24xx_els_iocb(sp, pkt); | |
2197 | break; | |
2198 | case SRB_CT_CMD: | |
9bc4f4fb HZ |
2199 | IS_FWI2_CAPABLE(ha) ? |
2200 | qla24xx_ct_iocb(sp, pkt) : | |
2201 | qla2x00_ct_iocb(sp, pkt); | |
9a069e19 | 2202 | break; |
5ff1d584 AV |
2203 | case SRB_ADISC_CMD: |
2204 | IS_FWI2_CAPABLE(ha) ? | |
2205 | qla24xx_adisc_iocb(sp, pkt) : | |
2206 | qla2x00_adisc_iocb(sp, pkt); | |
2207 | break; | |
3822263e MI |
2208 | case SRB_TM_CMD: |
2209 | qla24xx_tm_iocb(sp, pkt); | |
2210 | break; | |
ac280b67 AV |
2211 | default: |
2212 | break; | |
2213 | } | |
2214 | ||
2215 | wmb(); | |
2216 | qla2x00_start_iocbs(sp); | |
2217 | done: | |
2218 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2219 | return rval; | |
2220 | } |