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 | 7 | #include "qla_def.h" |
2d70c103 | 8 | #include "qla_target.h" |
1da177e4 LT |
9 | |
10 | #include <linux/blkdev.h> | |
11 | #include <linux/delay.h> | |
12 | ||
13 | #include <scsi/scsi_tcq.h> | |
14 | ||
59e0b8b0 | 15 | static void qla25xx_set_que(srb_t *, struct rsp_que **); |
1da177e4 LT |
16 | /** |
17 | * qla2x00_get_cmd_direction() - Determine control_flag data direction. | |
18 | * @cmd: SCSI command | |
19 | * | |
20 | * Returns the proper CF_* direction based on CDB. | |
21 | */ | |
22 | static inline uint16_t | |
49fd462a | 23 | qla2x00_get_cmd_direction(srb_t *sp) |
1da177e4 LT |
24 | { |
25 | uint16_t cflags; | |
9ba56b95 | 26 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
2be21fa2 | 27 | struct scsi_qla_host *vha = sp->fcport->vha; |
1da177e4 LT |
28 | |
29 | cflags = 0; | |
30 | ||
31 | /* Set transfer direction */ | |
9ba56b95 | 32 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { |
1da177e4 | 33 | cflags = CF_WRITE; |
2be21fa2 | 34 | vha->qla_stats.output_bytes += scsi_bufflen(cmd); |
9ba56b95 | 35 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { |
1da177e4 | 36 | cflags = CF_READ; |
2be21fa2 | 37 | vha->qla_stats.input_bytes += scsi_bufflen(cmd); |
49fd462a | 38 | } |
1da177e4 LT |
39 | return (cflags); |
40 | } | |
41 | ||
42 | /** | |
43 | * qla2x00_calc_iocbs_32() - Determine number of Command Type 2 and | |
44 | * Continuation Type 0 IOCBs to allocate. | |
45 | * | |
46 | * @dsds: number of data segment decriptors needed | |
47 | * | |
48 | * Returns the number of IOCB entries needed to store @dsds. | |
49 | */ | |
50 | uint16_t | |
51 | qla2x00_calc_iocbs_32(uint16_t dsds) | |
52 | { | |
53 | uint16_t iocbs; | |
54 | ||
55 | iocbs = 1; | |
56 | if (dsds > 3) { | |
57 | iocbs += (dsds - 3) / 7; | |
58 | if ((dsds - 3) % 7) | |
59 | iocbs++; | |
60 | } | |
61 | return (iocbs); | |
62 | } | |
63 | ||
64 | /** | |
65 | * qla2x00_calc_iocbs_64() - Determine number of Command Type 3 and | |
66 | * Continuation Type 1 IOCBs to allocate. | |
67 | * | |
68 | * @dsds: number of data segment decriptors needed | |
69 | * | |
70 | * Returns the number of IOCB entries needed to store @dsds. | |
71 | */ | |
72 | uint16_t | |
73 | qla2x00_calc_iocbs_64(uint16_t dsds) | |
74 | { | |
75 | uint16_t iocbs; | |
76 | ||
77 | iocbs = 1; | |
78 | if (dsds > 2) { | |
79 | iocbs += (dsds - 2) / 5; | |
80 | if ((dsds - 2) % 5) | |
81 | iocbs++; | |
82 | } | |
83 | return (iocbs); | |
84 | } | |
85 | ||
86 | /** | |
87 | * qla2x00_prep_cont_type0_iocb() - Initialize a Continuation Type 0 IOCB. | |
88 | * @ha: HA context | |
89 | * | |
90 | * Returns a pointer to the Continuation Type 0 IOCB packet. | |
91 | */ | |
92 | static inline cont_entry_t * | |
67c2e93a | 93 | qla2x00_prep_cont_type0_iocb(struct scsi_qla_host *vha) |
1da177e4 LT |
94 | { |
95 | cont_entry_t *cont_pkt; | |
67c2e93a | 96 | struct req_que *req = vha->req; |
1da177e4 | 97 | /* Adjust ring index. */ |
e315cd28 AC |
98 | req->ring_index++; |
99 | if (req->ring_index == req->length) { | |
100 | req->ring_index = 0; | |
101 | req->ring_ptr = req->ring; | |
1da177e4 | 102 | } else { |
e315cd28 | 103 | req->ring_ptr++; |
1da177e4 LT |
104 | } |
105 | ||
e315cd28 | 106 | cont_pkt = (cont_entry_t *)req->ring_ptr; |
1da177e4 LT |
107 | |
108 | /* Load packet defaults. */ | |
109 | *((uint32_t *)(&cont_pkt->entry_type)) = | |
110 | __constant_cpu_to_le32(CONTINUE_TYPE); | |
111 | ||
112 | return (cont_pkt); | |
113 | } | |
114 | ||
115 | /** | |
116 | * qla2x00_prep_cont_type1_iocb() - Initialize a Continuation Type 1 IOCB. | |
117 | * @ha: HA context | |
118 | * | |
119 | * Returns a pointer to the continuation type 1 IOCB packet. | |
120 | */ | |
121 | static inline cont_a64_entry_t * | |
0d2aa38e | 122 | qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *vha, struct req_que *req) |
1da177e4 LT |
123 | { |
124 | cont_a64_entry_t *cont_pkt; | |
125 | ||
126 | /* Adjust ring index. */ | |
e315cd28 AC |
127 | req->ring_index++; |
128 | if (req->ring_index == req->length) { | |
129 | req->ring_index = 0; | |
130 | req->ring_ptr = req->ring; | |
1da177e4 | 131 | } else { |
e315cd28 | 132 | req->ring_ptr++; |
1da177e4 LT |
133 | } |
134 | ||
e315cd28 | 135 | cont_pkt = (cont_a64_entry_t *)req->ring_ptr; |
1da177e4 LT |
136 | |
137 | /* Load packet defaults. */ | |
138 | *((uint32_t *)(&cont_pkt->entry_type)) = | |
139 | __constant_cpu_to_le32(CONTINUE_A64_TYPE); | |
140 | ||
141 | return (cont_pkt); | |
142 | } | |
143 | ||
bad75002 AE |
144 | static inline int |
145 | qla24xx_configure_prot_mode(srb_t *sp, uint16_t *fw_prot_opts) | |
146 | { | |
9ba56b95 GM |
147 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
148 | uint8_t guard = scsi_host_get_guard(cmd->device->host); | |
bad75002 AE |
149 | |
150 | /* We only support T10 DIF right now */ | |
151 | if (guard != SHOST_DIX_GUARD_CRC) { | |
7c3df132 | 152 | ql_dbg(ql_dbg_io, sp->fcport->vha, 0x3007, |
9ba56b95 | 153 | "Unsupported guard: %d for cmd=%p.\n", guard, 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 */ | |
9ba56b95 | 161 | switch (scsi_get_prot_op(cmd)) { |
bad75002 AE |
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 | ||
9ba56b95 | 185 | return scsi_prot_sg_count(cmd); |
bad75002 AE |
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 | 205 | |
9ba56b95 | 206 | cmd = GET_CMD_SP(sp); |
1da177e4 LT |
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 | 263 | |
9ba56b95 | 264 | cmd = GET_CMD_SP(sp); |
1da177e4 LT |
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; |
9ba56b95 | 338 | cmd = GET_CMD_SP(sp); |
73208dfd AC |
339 | req = ha->req_q_map[0]; |
340 | rsp = ha->rsp_q_map[0]; | |
83021920 | 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); | |
a6eb3c9f CL |
388 | /* If still no head room then bail out */ |
389 | if (req->cnt < (req_cnt + 2)) | |
390 | goto queuing_error; | |
1da177e4 | 391 | } |
1da177e4 | 392 | |
1da177e4 | 393 | /* Build command packet */ |
e315cd28 AC |
394 | req->current_outstanding_cmd = handle; |
395 | req->outstanding_cmds[handle] = sp; | |
cf53b069 | 396 | sp->handle = handle; |
9ba56b95 | 397 | cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
e315cd28 | 398 | req->cnt -= req_cnt; |
1da177e4 | 399 | |
e315cd28 | 400 | cmd_pkt = (cmd_entry_t *)req->ring_ptr; |
1da177e4 LT |
401 | cmd_pkt->handle = handle; |
402 | /* Zero out remaining portion of packet. */ | |
403 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
404 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
405 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
406 | ||
bdf79621 | 407 | /* Set target ID and LUN number*/ |
408 | SET_TARGET_ID(ha, cmd_pkt->target, sp->fcport->loop_id); | |
9ba56b95 | 409 | cmd_pkt->lun = cpu_to_le16(cmd->device->lun); |
1da177e4 LT |
410 | |
411 | /* Update tagged queuing modifier */ | |
ff2fc42e AV |
412 | if (scsi_populate_tag_msg(cmd, tag)) { |
413 | switch (tag[0]) { | |
414 | case HEAD_OF_QUEUE_TAG: | |
415 | cmd_pkt->control_flags = | |
416 | __constant_cpu_to_le16(CF_HEAD_TAG); | |
417 | break; | |
418 | case ORDERED_QUEUE_TAG: | |
419 | cmd_pkt->control_flags = | |
420 | __constant_cpu_to_le16(CF_ORDERED_TAG); | |
421 | break; | |
422 | default: | |
423 | cmd_pkt->control_flags = | |
424 | __constant_cpu_to_le16(CF_SIMPLE_TAG); | |
425 | break; | |
426 | } | |
427 | } | |
1da177e4 | 428 | |
1da177e4 LT |
429 | /* Load SCSI command packet. */ |
430 | memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len); | |
385d70b4 | 431 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); |
1da177e4 LT |
432 | |
433 | /* Build IOCB segments */ | |
fd34f556 | 434 | ha->isp_ops->build_iocbs(sp, cmd_pkt, tot_dsds); |
1da177e4 LT |
435 | |
436 | /* Set total data segment count. */ | |
437 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
438 | wmb(); | |
439 | ||
440 | /* Adjust ring index. */ | |
e315cd28 AC |
441 | req->ring_index++; |
442 | if (req->ring_index == req->length) { | |
443 | req->ring_index = 0; | |
444 | req->ring_ptr = req->ring; | |
1da177e4 | 445 | } else |
e315cd28 | 446 | req->ring_ptr++; |
1da177e4 | 447 | |
1da177e4 | 448 | sp->flags |= SRB_DMA_VALID; |
1da177e4 LT |
449 | |
450 | /* Set chip new ring index. */ | |
e315cd28 | 451 | WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), req->ring_index); |
1da177e4 LT |
452 | RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, reg)); /* PCI Posting. */ |
453 | ||
4fdfefe5 | 454 | /* Manage unprocessed RIO/ZIO commands in response queue. */ |
e315cd28 | 455 | if (vha->flags.process_response_queue && |
73208dfd AC |
456 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) |
457 | qla2x00_process_response_queue(rsp); | |
4fdfefe5 | 458 | |
c9c5ced9 | 459 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
1da177e4 LT |
460 | return (QLA_SUCCESS); |
461 | ||
462 | queuing_error: | |
385d70b4 FT |
463 | if (tot_dsds) |
464 | scsi_dma_unmap(cmd); | |
465 | ||
c9c5ced9 | 466 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
1da177e4 LT |
467 | |
468 | return (QLA_FUNCTION_FAILED); | |
469 | } | |
470 | ||
5162cf0c GM |
471 | /** |
472 | * qla2x00_start_iocbs() - Execute the IOCB command | |
473 | */ | |
2d70c103 | 474 | void |
5162cf0c GM |
475 | qla2x00_start_iocbs(struct scsi_qla_host *vha, struct req_que *req) |
476 | { | |
477 | struct qla_hw_data *ha = vha->hw; | |
478 | device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id); | |
5162cf0c GM |
479 | |
480 | if (IS_QLA82XX(ha)) { | |
481 | qla82xx_start_iocbs(vha); | |
482 | } else { | |
483 | /* Adjust ring index. */ | |
484 | req->ring_index++; | |
485 | if (req->ring_index == req->length) { | |
486 | req->ring_index = 0; | |
487 | req->ring_ptr = req->ring; | |
488 | } else | |
489 | req->ring_ptr++; | |
490 | ||
491 | /* Set chip new ring index. */ | |
6246b8a1 GM |
492 | if (ha->mqenable || IS_QLA83XX(ha)) { |
493 | WRT_REG_DWORD(req->req_q_in, req->ring_index); | |
98878a16 | 494 | RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); |
5162cf0c GM |
495 | } else if (IS_FWI2_CAPABLE(ha)) { |
496 | WRT_REG_DWORD(®->isp24.req_q_in, req->ring_index); | |
497 | RD_REG_DWORD_RELAXED(®->isp24.req_q_in); | |
498 | } else { | |
499 | WRT_REG_WORD(ISP_REQ_Q_IN(ha, ®->isp), | |
500 | req->ring_index); | |
501 | RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, ®->isp)); | |
502 | } | |
503 | } | |
504 | } | |
505 | ||
1da177e4 LT |
506 | /** |
507 | * qla2x00_marker() - Send a marker IOCB to the firmware. | |
508 | * @ha: HA context | |
509 | * @loop_id: loop ID | |
510 | * @lun: LUN | |
511 | * @type: marker modifier | |
512 | * | |
513 | * Can be called from both normal and interrupt context. | |
514 | * | |
cc3ef7bc | 515 | * Returns non-zero if a failure occurred, else zero. |
1da177e4 | 516 | */ |
3dbe756a | 517 | static int |
73208dfd AC |
518 | __qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req, |
519 | struct rsp_que *rsp, uint16_t loop_id, | |
520 | uint16_t lun, uint8_t type) | |
1da177e4 | 521 | { |
2b6c0cee AV |
522 | mrk_entry_t *mrk; |
523 | struct mrk_entry_24xx *mrk24; | |
e315cd28 AC |
524 | struct qla_hw_data *ha = vha->hw; |
525 | scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); | |
1da177e4 | 526 | |
2b6c0cee | 527 | mrk24 = NULL; |
99b8212c | 528 | req = ha->req_q_map[0]; |
d94d10e7 | 529 | mrk = (mrk_entry_t *)qla2x00_alloc_iocbs(vha, 0); |
2b6c0cee | 530 | if (mrk == NULL) { |
7c3df132 SK |
531 | ql_log(ql_log_warn, base_vha, 0x3026, |
532 | "Failed to allocate Marker IOCB.\n"); | |
1da177e4 LT |
533 | |
534 | return (QLA_FUNCTION_FAILED); | |
535 | } | |
536 | ||
2b6c0cee AV |
537 | mrk->entry_type = MARKER_TYPE; |
538 | mrk->modifier = type; | |
1da177e4 | 539 | if (type != MK_SYNC_ALL) { |
e428924c | 540 | if (IS_FWI2_CAPABLE(ha)) { |
2b6c0cee AV |
541 | mrk24 = (struct mrk_entry_24xx *) mrk; |
542 | mrk24->nport_handle = cpu_to_le16(loop_id); | |
543 | mrk24->lun[1] = LSB(lun); | |
544 | mrk24->lun[2] = MSB(lun); | |
b797b6de | 545 | host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun)); |
e315cd28 | 546 | mrk24->vp_index = vha->vp_idx; |
2afa19a9 | 547 | mrk24->handle = MAKE_HANDLE(req->id, mrk24->handle); |
2b6c0cee AV |
548 | } else { |
549 | SET_TARGET_ID(ha, mrk->target, loop_id); | |
550 | mrk->lun = cpu_to_le16(lun); | |
551 | } | |
1da177e4 LT |
552 | } |
553 | wmb(); | |
554 | ||
5162cf0c | 555 | qla2x00_start_iocbs(vha, req); |
1da177e4 LT |
556 | |
557 | return (QLA_SUCCESS); | |
558 | } | |
559 | ||
fa2a1ce5 | 560 | int |
73208dfd AC |
561 | qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req, |
562 | struct rsp_que *rsp, uint16_t loop_id, uint16_t lun, | |
563 | uint8_t type) | |
1da177e4 LT |
564 | { |
565 | int ret; | |
566 | unsigned long flags = 0; | |
567 | ||
73208dfd AC |
568 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); |
569 | ret = __qla2x00_marker(vha, req, rsp, loop_id, lun, type); | |
570 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); | |
1da177e4 LT |
571 | |
572 | return (ret); | |
573 | } | |
574 | ||
2d70c103 NB |
575 | /* |
576 | * qla2x00_issue_marker | |
577 | * | |
578 | * Issue marker | |
579 | * Caller CAN have hardware lock held as specified by ha_locked parameter. | |
580 | * Might release it, then reaquire. | |
581 | */ | |
582 | int qla2x00_issue_marker(scsi_qla_host_t *vha, int ha_locked) | |
583 | { | |
584 | if (ha_locked) { | |
585 | if (__qla2x00_marker(vha, vha->req, vha->req->rsp, 0, 0, | |
586 | MK_SYNC_ALL) != QLA_SUCCESS) | |
587 | return QLA_FUNCTION_FAILED; | |
588 | } else { | |
589 | if (qla2x00_marker(vha, vha->req, vha->req->rsp, 0, 0, | |
590 | MK_SYNC_ALL) != QLA_SUCCESS) | |
591 | return QLA_FUNCTION_FAILED; | |
592 | } | |
593 | vha->marker_needed = 0; | |
594 | ||
595 | return QLA_SUCCESS; | |
596 | } | |
597 | ||
1da177e4 | 598 | /** |
5162cf0c GM |
599 | * qla24xx_calc_iocbs() - Determine number of Command Type 3 and |
600 | * Continuation Type 1 IOCBs to allocate. | |
1da177e4 | 601 | * |
5162cf0c GM |
602 | * @dsds: number of data segment decriptors needed |
603 | * | |
604 | * Returns the number of IOCB entries needed to store @dsds. | |
1da177e4 | 605 | */ |
5162cf0c GM |
606 | inline uint16_t |
607 | qla24xx_calc_iocbs(scsi_qla_host_t *vha, uint16_t dsds) | |
1da177e4 | 608 | { |
5162cf0c | 609 | uint16_t iocbs; |
1da177e4 | 610 | |
5162cf0c GM |
611 | iocbs = 1; |
612 | if (dsds > 1) { | |
613 | iocbs += (dsds - 1) / 5; | |
614 | if ((dsds - 1) % 5) | |
615 | iocbs++; | |
616 | } | |
617 | return iocbs; | |
618 | } | |
1da177e4 | 619 | |
5162cf0c GM |
620 | static inline int |
621 | qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt, | |
622 | uint16_t tot_dsds) | |
623 | { | |
624 | uint32_t *cur_dsd = NULL; | |
625 | scsi_qla_host_t *vha; | |
626 | struct qla_hw_data *ha; | |
627 | struct scsi_cmnd *cmd; | |
628 | struct scatterlist *cur_seg; | |
629 | uint32_t *dsd_seg; | |
630 | void *next_dsd; | |
631 | uint8_t avail_dsds; | |
632 | uint8_t first_iocb = 1; | |
633 | uint32_t dsd_list_len; | |
634 | struct dsd_dma *dsd_ptr; | |
635 | struct ct6_dsd *ctx; | |
1da177e4 | 636 | |
9ba56b95 | 637 | cmd = GET_CMD_SP(sp); |
a9083016 | 638 | |
5162cf0c GM |
639 | /* Update entry type to indicate Command Type 3 IOCB */ |
640 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
641 | __constant_cpu_to_le32(COMMAND_TYPE_6); | |
642 | ||
643 | /* No data transfer */ | |
644 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { | |
645 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); | |
646 | return 0; | |
647 | } | |
648 | ||
649 | vha = sp->fcport->vha; | |
650 | ha = vha->hw; | |
651 | ||
652 | /* Set transfer direction */ | |
653 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { | |
654 | cmd_pkt->control_flags = | |
655 | __constant_cpu_to_le16(CF_WRITE_DATA); | |
2be21fa2 | 656 | vha->qla_stats.output_bytes += scsi_bufflen(cmd); |
5162cf0c GM |
657 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { |
658 | cmd_pkt->control_flags = | |
659 | __constant_cpu_to_le16(CF_READ_DATA); | |
2be21fa2 | 660 | vha->qla_stats.input_bytes += scsi_bufflen(cmd); |
5162cf0c GM |
661 | } |
662 | ||
663 | cur_seg = scsi_sglist(cmd); | |
9ba56b95 | 664 | ctx = GET_CMD_CTX_SP(sp); |
5162cf0c GM |
665 | |
666 | while (tot_dsds) { | |
667 | avail_dsds = (tot_dsds > QLA_DSDS_PER_IOCB) ? | |
668 | QLA_DSDS_PER_IOCB : tot_dsds; | |
669 | tot_dsds -= avail_dsds; | |
670 | dsd_list_len = (avail_dsds + 1) * QLA_DSD_SIZE; | |
671 | ||
672 | dsd_ptr = list_first_entry(&ha->gbl_dsd_list, | |
673 | struct dsd_dma, list); | |
674 | next_dsd = dsd_ptr->dsd_addr; | |
675 | list_del(&dsd_ptr->list); | |
676 | ha->gbl_dsd_avail--; | |
677 | list_add_tail(&dsd_ptr->list, &ctx->dsd_list); | |
678 | ctx->dsd_use_cnt++; | |
679 | ha->gbl_dsd_inuse++; | |
680 | ||
681 | if (first_iocb) { | |
682 | first_iocb = 0; | |
683 | dsd_seg = (uint32_t *)&cmd_pkt->fcp_data_dseg_address; | |
684 | *dsd_seg++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
685 | *dsd_seg++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
686 | cmd_pkt->fcp_data_dseg_len = cpu_to_le32(dsd_list_len); | |
73208dfd | 687 | } else { |
5162cf0c GM |
688 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); |
689 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
690 | *cur_dsd++ = cpu_to_le32(dsd_list_len); | |
691 | } | |
692 | cur_dsd = (uint32_t *)next_dsd; | |
693 | while (avail_dsds) { | |
694 | dma_addr_t sle_dma; | |
695 | ||
696 | sle_dma = sg_dma_address(cur_seg); | |
697 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
698 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
699 | *cur_dsd++ = cpu_to_le32(sg_dma_len(cur_seg)); | |
700 | cur_seg = sg_next(cur_seg); | |
701 | avail_dsds--; | |
73208dfd | 702 | } |
2b6c0cee AV |
703 | } |
704 | ||
5162cf0c GM |
705 | /* Null termination */ |
706 | *cur_dsd++ = 0; | |
707 | *cur_dsd++ = 0; | |
708 | *cur_dsd++ = 0; | |
709 | cmd_pkt->control_flags |= CF_DATA_SEG_DESCR_ENABLE; | |
710 | return 0; | |
2b6c0cee AV |
711 | } |
712 | ||
5162cf0c GM |
713 | /* |
714 | * qla24xx_calc_dsd_lists() - Determine number of DSD list required | |
715 | * for Command Type 6. | |
2b6c0cee AV |
716 | * |
717 | * @dsds: number of data segment decriptors needed | |
718 | * | |
5162cf0c | 719 | * Returns the number of dsd list needed to store @dsds. |
2b6c0cee | 720 | */ |
a9083016 | 721 | inline uint16_t |
5162cf0c | 722 | qla24xx_calc_dsd_lists(uint16_t dsds) |
2b6c0cee | 723 | { |
5162cf0c | 724 | uint16_t dsd_lists = 0; |
2b6c0cee | 725 | |
5162cf0c GM |
726 | dsd_lists = (dsds/QLA_DSDS_PER_IOCB); |
727 | if (dsds % QLA_DSDS_PER_IOCB) | |
728 | dsd_lists++; | |
729 | return dsd_lists; | |
2b6c0cee AV |
730 | } |
731 | ||
5162cf0c | 732 | |
2b6c0cee AV |
733 | /** |
734 | * qla24xx_build_scsi_iocbs() - Build IOCB command utilizing Command Type 7 | |
735 | * IOCB types. | |
736 | * | |
737 | * @sp: SRB command to process | |
738 | * @cmd_pkt: Command type 3 IOCB | |
739 | * @tot_dsds: Total number of segments to transfer | |
740 | */ | |
a9083016 | 741 | inline void |
2b6c0cee AV |
742 | qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt, |
743 | uint16_t tot_dsds) | |
744 | { | |
745 | uint16_t avail_dsds; | |
746 | uint32_t *cur_dsd; | |
e315cd28 | 747 | scsi_qla_host_t *vha; |
2b6c0cee | 748 | struct scsi_cmnd *cmd; |
385d70b4 FT |
749 | struct scatterlist *sg; |
750 | int i; | |
73208dfd | 751 | struct req_que *req; |
2b6c0cee | 752 | |
9ba56b95 | 753 | cmd = GET_CMD_SP(sp); |
2b6c0cee AV |
754 | |
755 | /* Update entry type to indicate Command Type 3 IOCB */ | |
756 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
757 | __constant_cpu_to_le32(COMMAND_TYPE_7); | |
758 | ||
759 | /* No data transfer */ | |
385d70b4 | 760 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { |
2b6c0cee AV |
761 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
762 | return; | |
763 | } | |
764 | ||
444786d7 | 765 | vha = sp->fcport->vha; |
67c2e93a | 766 | req = vha->req; |
2b6c0cee AV |
767 | |
768 | /* Set transfer direction */ | |
49fd462a | 769 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { |
2b6c0cee AV |
770 | cmd_pkt->task_mgmt_flags = |
771 | __constant_cpu_to_le16(TMF_WRITE_DATA); | |
2be21fa2 | 772 | vha->qla_stats.output_bytes += scsi_bufflen(cmd); |
49fd462a | 773 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { |
2b6c0cee AV |
774 | cmd_pkt->task_mgmt_flags = |
775 | __constant_cpu_to_le16(TMF_READ_DATA); | |
2be21fa2 | 776 | vha->qla_stats.input_bytes += scsi_bufflen(cmd); |
49fd462a | 777 | } |
2b6c0cee AV |
778 | |
779 | /* One DSD is available in the Command Type 3 IOCB */ | |
780 | avail_dsds = 1; | |
781 | cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address; | |
782 | ||
783 | /* Load data segments */ | |
385d70b4 FT |
784 | |
785 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { | |
786 | dma_addr_t sle_dma; | |
787 | cont_a64_entry_t *cont_pkt; | |
788 | ||
789 | /* Allocate additional continuation packets? */ | |
790 | if (avail_dsds == 0) { | |
791 | /* | |
792 | * Five DSDs are available in the Continuation | |
793 | * Type 1 IOCB. | |
794 | */ | |
0d2aa38e | 795 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); |
385d70b4 FT |
796 | cur_dsd = (uint32_t *)cont_pkt->dseg_0_address; |
797 | avail_dsds = 5; | |
2b6c0cee | 798 | } |
385d70b4 FT |
799 | |
800 | sle_dma = sg_dma_address(sg); | |
801 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
802 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
803 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
804 | avail_dsds--; | |
2b6c0cee AV |
805 | } |
806 | } | |
807 | ||
bad75002 AE |
808 | struct fw_dif_context { |
809 | uint32_t ref_tag; | |
810 | uint16_t app_tag; | |
811 | uint8_t ref_tag_mask[4]; /* Validation/Replacement Mask*/ | |
812 | uint8_t app_tag_mask[2]; /* Validation/Replacement Mask*/ | |
813 | }; | |
814 | ||
815 | /* | |
816 | * qla24xx_set_t10dif_tags_from_cmd - Extract Ref and App tags from SCSI command | |
817 | * | |
818 | */ | |
819 | static inline void | |
e02587d7 | 820 | qla24xx_set_t10dif_tags(srb_t *sp, struct fw_dif_context *pkt, |
bad75002 AE |
821 | unsigned int protcnt) |
822 | { | |
9ba56b95 | 823 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
7c3df132 | 824 | scsi_qla_host_t *vha = shost_priv(cmd->device->host); |
bad75002 AE |
825 | |
826 | switch (scsi_get_prot_type(cmd)) { | |
bad75002 | 827 | case SCSI_PROT_DIF_TYPE0: |
8cb2049c AE |
828 | /* |
829 | * No check for ql2xenablehba_err_chk, as it would be an | |
830 | * I/O error if hba tag generation is not done. | |
831 | */ | |
832 | pkt->ref_tag = cpu_to_le32((uint32_t) | |
833 | (0xffffffff & scsi_get_lba(cmd))); | |
e02587d7 AE |
834 | |
835 | if (!qla2x00_hba_err_chk_enabled(sp)) | |
836 | break; | |
837 | ||
8cb2049c AE |
838 | pkt->ref_tag_mask[0] = 0xff; |
839 | pkt->ref_tag_mask[1] = 0xff; | |
840 | pkt->ref_tag_mask[2] = 0xff; | |
841 | pkt->ref_tag_mask[3] = 0xff; | |
bad75002 AE |
842 | break; |
843 | ||
844 | /* | |
845 | * For TYPE 2 protection: 16 bit GUARD + 32 bit REF tag has to | |
846 | * match LBA in CDB + N | |
847 | */ | |
848 | case SCSI_PROT_DIF_TYPE2: | |
e02587d7 AE |
849 | pkt->app_tag = __constant_cpu_to_le16(0); |
850 | pkt->app_tag_mask[0] = 0x0; | |
851 | pkt->app_tag_mask[1] = 0x0; | |
0c470874 AE |
852 | |
853 | pkt->ref_tag = cpu_to_le32((uint32_t) | |
854 | (0xffffffff & scsi_get_lba(cmd))); | |
855 | ||
e02587d7 AE |
856 | if (!qla2x00_hba_err_chk_enabled(sp)) |
857 | break; | |
858 | ||
0c470874 AE |
859 | /* enable ALL bytes of the ref tag */ |
860 | pkt->ref_tag_mask[0] = 0xff; | |
861 | pkt->ref_tag_mask[1] = 0xff; | |
862 | pkt->ref_tag_mask[2] = 0xff; | |
863 | pkt->ref_tag_mask[3] = 0xff; | |
bad75002 AE |
864 | break; |
865 | ||
866 | /* For Type 3 protection: 16 bit GUARD only */ | |
867 | case SCSI_PROT_DIF_TYPE3: | |
868 | pkt->ref_tag_mask[0] = pkt->ref_tag_mask[1] = | |
869 | pkt->ref_tag_mask[2] = pkt->ref_tag_mask[3] = | |
870 | 0x00; | |
871 | break; | |
872 | ||
873 | /* | |
874 | * For TYpe 1 protection: 16 bit GUARD tag, 32 bit REF tag, and | |
875 | * 16 bit app tag. | |
876 | */ | |
877 | case SCSI_PROT_DIF_TYPE1: | |
e02587d7 AE |
878 | pkt->ref_tag = cpu_to_le32((uint32_t) |
879 | (0xffffffff & scsi_get_lba(cmd))); | |
880 | pkt->app_tag = __constant_cpu_to_le16(0); | |
881 | pkt->app_tag_mask[0] = 0x0; | |
882 | pkt->app_tag_mask[1] = 0x0; | |
883 | ||
884 | if (!qla2x00_hba_err_chk_enabled(sp)) | |
bad75002 AE |
885 | break; |
886 | ||
bad75002 AE |
887 | /* enable ALL bytes of the ref tag */ |
888 | pkt->ref_tag_mask[0] = 0xff; | |
889 | pkt->ref_tag_mask[1] = 0xff; | |
890 | pkt->ref_tag_mask[2] = 0xff; | |
891 | pkt->ref_tag_mask[3] = 0xff; | |
892 | break; | |
893 | } | |
894 | ||
7c3df132 SK |
895 | ql_dbg(ql_dbg_io, vha, 0x3009, |
896 | "Setting protection Tags: (BIG) ref tag = 0x%x, app tag = 0x%x, " | |
897 | "prot SG count %d, cmd lba 0x%x, prot_type=%u cmd=%p.\n", | |
898 | pkt->ref_tag, pkt->app_tag, protcnt, (int)scsi_get_lba(cmd), | |
899 | scsi_get_prot_type(cmd), cmd); | |
bad75002 AE |
900 | } |
901 | ||
8cb2049c AE |
902 | struct qla2_sgx { |
903 | dma_addr_t dma_addr; /* OUT */ | |
904 | uint32_t dma_len; /* OUT */ | |
905 | ||
906 | uint32_t tot_bytes; /* IN */ | |
907 | struct scatterlist *cur_sg; /* IN */ | |
908 | ||
909 | /* for book keeping, bzero on initial invocation */ | |
910 | uint32_t bytes_consumed; | |
911 | uint32_t num_bytes; | |
912 | uint32_t tot_partial; | |
913 | ||
914 | /* for debugging */ | |
915 | uint32_t num_sg; | |
916 | srb_t *sp; | |
917 | }; | |
918 | ||
919 | static int | |
920 | qla24xx_get_one_block_sg(uint32_t blk_sz, struct qla2_sgx *sgx, | |
921 | uint32_t *partial) | |
922 | { | |
923 | struct scatterlist *sg; | |
924 | uint32_t cumulative_partial, sg_len; | |
925 | dma_addr_t sg_dma_addr; | |
926 | ||
927 | if (sgx->num_bytes == sgx->tot_bytes) | |
928 | return 0; | |
929 | ||
930 | sg = sgx->cur_sg; | |
931 | cumulative_partial = sgx->tot_partial; | |
932 | ||
933 | sg_dma_addr = sg_dma_address(sg); | |
934 | sg_len = sg_dma_len(sg); | |
935 | ||
936 | sgx->dma_addr = sg_dma_addr + sgx->bytes_consumed; | |
937 | ||
938 | if ((cumulative_partial + (sg_len - sgx->bytes_consumed)) >= blk_sz) { | |
939 | sgx->dma_len = (blk_sz - cumulative_partial); | |
940 | sgx->tot_partial = 0; | |
941 | sgx->num_bytes += blk_sz; | |
942 | *partial = 0; | |
943 | } else { | |
944 | sgx->dma_len = sg_len - sgx->bytes_consumed; | |
945 | sgx->tot_partial += sgx->dma_len; | |
946 | *partial = 1; | |
947 | } | |
948 | ||
949 | sgx->bytes_consumed += sgx->dma_len; | |
950 | ||
951 | if (sg_len == sgx->bytes_consumed) { | |
952 | sg = sg_next(sg); | |
953 | sgx->num_sg++; | |
954 | sgx->cur_sg = sg; | |
955 | sgx->bytes_consumed = 0; | |
956 | } | |
957 | ||
958 | return 1; | |
959 | } | |
960 | ||
961 | static int | |
962 | qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data *ha, srb_t *sp, | |
963 | uint32_t *dsd, uint16_t tot_dsds) | |
964 | { | |
965 | void *next_dsd; | |
966 | uint8_t avail_dsds = 0; | |
967 | uint32_t dsd_list_len; | |
968 | struct dsd_dma *dsd_ptr; | |
969 | struct scatterlist *sg_prot; | |
970 | uint32_t *cur_dsd = dsd; | |
971 | uint16_t used_dsds = tot_dsds; | |
972 | ||
973 | uint32_t prot_int; | |
974 | uint32_t partial; | |
975 | struct qla2_sgx sgx; | |
976 | dma_addr_t sle_dma; | |
977 | uint32_t sle_dma_len, tot_prot_dma_len = 0; | |
9ba56b95 | 978 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
8cb2049c AE |
979 | |
980 | prot_int = cmd->device->sector_size; | |
981 | ||
982 | memset(&sgx, 0, sizeof(struct qla2_sgx)); | |
9ba56b95 GM |
983 | sgx.tot_bytes = scsi_bufflen(cmd); |
984 | sgx.cur_sg = scsi_sglist(cmd); | |
8cb2049c AE |
985 | sgx.sp = sp; |
986 | ||
9ba56b95 | 987 | sg_prot = scsi_prot_sglist(cmd); |
8cb2049c AE |
988 | |
989 | while (qla24xx_get_one_block_sg(prot_int, &sgx, &partial)) { | |
990 | ||
991 | sle_dma = sgx.dma_addr; | |
992 | sle_dma_len = sgx.dma_len; | |
993 | alloc_and_fill: | |
994 | /* Allocate additional continuation packets? */ | |
995 | if (avail_dsds == 0) { | |
996 | avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? | |
997 | QLA_DSDS_PER_IOCB : used_dsds; | |
998 | dsd_list_len = (avail_dsds + 1) * 12; | |
999 | used_dsds -= avail_dsds; | |
1000 | ||
1001 | /* allocate tracking DS */ | |
1002 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
1003 | if (!dsd_ptr) | |
1004 | return 1; | |
1005 | ||
1006 | /* allocate new list */ | |
1007 | dsd_ptr->dsd_addr = next_dsd = | |
1008 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, | |
1009 | &dsd_ptr->dsd_list_dma); | |
1010 | ||
1011 | if (!next_dsd) { | |
1012 | /* | |
1013 | * Need to cleanup only this dsd_ptr, rest | |
1014 | * will be done by sp_free_dma() | |
1015 | */ | |
1016 | kfree(dsd_ptr); | |
1017 | return 1; | |
1018 | } | |
1019 | ||
1020 | list_add_tail(&dsd_ptr->list, | |
9ba56b95 | 1021 | &((struct crc_context *)sp->u.scmd.ctx)->dsd_list); |
8cb2049c AE |
1022 | |
1023 | sp->flags |= SRB_CRC_CTX_DSD_VALID; | |
1024 | ||
1025 | /* add new list to cmd iocb or last list */ | |
1026 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
1027 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
1028 | *cur_dsd++ = dsd_list_len; | |
1029 | cur_dsd = (uint32_t *)next_dsd; | |
1030 | } | |
1031 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
1032 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
1033 | *cur_dsd++ = cpu_to_le32(sle_dma_len); | |
1034 | avail_dsds--; | |
1035 | ||
1036 | if (partial == 0) { | |
1037 | /* Got a full protection interval */ | |
1038 | sle_dma = sg_dma_address(sg_prot) + tot_prot_dma_len; | |
1039 | sle_dma_len = 8; | |
bad75002 | 1040 | |
8cb2049c AE |
1041 | tot_prot_dma_len += sle_dma_len; |
1042 | if (tot_prot_dma_len == sg_dma_len(sg_prot)) { | |
1043 | tot_prot_dma_len = 0; | |
1044 | sg_prot = sg_next(sg_prot); | |
1045 | } | |
1046 | ||
1047 | partial = 1; /* So as to not re-enter this block */ | |
1048 | goto alloc_and_fill; | |
1049 | } | |
1050 | } | |
1051 | /* Null termination */ | |
1052 | *cur_dsd++ = 0; | |
1053 | *cur_dsd++ = 0; | |
1054 | *cur_dsd++ = 0; | |
1055 | return 0; | |
1056 | } | |
5162cf0c | 1057 | |
bad75002 AE |
1058 | static int |
1059 | qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, uint32_t *dsd, | |
1060 | uint16_t tot_dsds) | |
1061 | { | |
1062 | void *next_dsd; | |
1063 | uint8_t avail_dsds = 0; | |
1064 | uint32_t dsd_list_len; | |
1065 | struct dsd_dma *dsd_ptr; | |
1066 | struct scatterlist *sg; | |
1067 | uint32_t *cur_dsd = dsd; | |
1068 | int i; | |
1069 | uint16_t used_dsds = tot_dsds; | |
9ba56b95 GM |
1070 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
1071 | scsi_qla_host_t *vha = shost_priv(cmd->device->host); | |
bad75002 AE |
1072 | |
1073 | uint8_t *cp; | |
1074 | ||
9ba56b95 | 1075 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { |
bad75002 AE |
1076 | dma_addr_t sle_dma; |
1077 | ||
1078 | /* Allocate additional continuation packets? */ | |
1079 | if (avail_dsds == 0) { | |
1080 | avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? | |
1081 | QLA_DSDS_PER_IOCB : used_dsds; | |
1082 | dsd_list_len = (avail_dsds + 1) * 12; | |
1083 | used_dsds -= avail_dsds; | |
1084 | ||
1085 | /* allocate tracking DS */ | |
1086 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
1087 | if (!dsd_ptr) | |
1088 | return 1; | |
1089 | ||
1090 | /* allocate new list */ | |
1091 | dsd_ptr->dsd_addr = next_dsd = | |
1092 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, | |
1093 | &dsd_ptr->dsd_list_dma); | |
1094 | ||
1095 | if (!next_dsd) { | |
1096 | /* | |
1097 | * Need to cleanup only this dsd_ptr, rest | |
1098 | * will be done by sp_free_dma() | |
1099 | */ | |
1100 | kfree(dsd_ptr); | |
1101 | return 1; | |
1102 | } | |
1103 | ||
1104 | list_add_tail(&dsd_ptr->list, | |
9ba56b95 | 1105 | &((struct crc_context *)sp->u.scmd.ctx)->dsd_list); |
bad75002 AE |
1106 | |
1107 | sp->flags |= SRB_CRC_CTX_DSD_VALID; | |
1108 | ||
1109 | /* add new list to cmd iocb or last list */ | |
1110 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
1111 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
1112 | *cur_dsd++ = dsd_list_len; | |
1113 | cur_dsd = (uint32_t *)next_dsd; | |
1114 | } | |
1115 | sle_dma = sg_dma_address(sg); | |
7c3df132 SK |
1116 | ql_dbg(ql_dbg_io, vha, 0x300a, |
1117 | "sg entry %d - addr=0x%x 0x%x, " "len=%d for cmd=%p.\n", | |
9ba56b95 | 1118 | i, LSD(sle_dma), MSD(sle_dma), sg_dma_len(sg), cmd); |
bad75002 AE |
1119 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); |
1120 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
1121 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
1122 | avail_dsds--; | |
1123 | ||
9ba56b95 | 1124 | if (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_PASS) { |
bad75002 | 1125 | cp = page_address(sg_page(sg)) + sg->offset; |
7c3df132 | 1126 | ql_dbg(ql_dbg_io, vha, 0x300b, |
9ba56b95 | 1127 | "User data buffer=%p for cmd=%p.\n", cp, cmd); |
bad75002 AE |
1128 | } |
1129 | } | |
1130 | /* Null termination */ | |
1131 | *cur_dsd++ = 0; | |
1132 | *cur_dsd++ = 0; | |
1133 | *cur_dsd++ = 0; | |
1134 | return 0; | |
1135 | } | |
1136 | ||
1137 | static int | |
1138 | qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp, | |
1139 | uint32_t *dsd, | |
1140 | uint16_t tot_dsds) | |
1141 | { | |
1142 | void *next_dsd; | |
1143 | uint8_t avail_dsds = 0; | |
1144 | uint32_t dsd_list_len; | |
1145 | struct dsd_dma *dsd_ptr; | |
1146 | struct scatterlist *sg; | |
1147 | int i; | |
1148 | struct scsi_cmnd *cmd; | |
1149 | uint32_t *cur_dsd = dsd; | |
1150 | uint16_t used_dsds = tot_dsds; | |
7c3df132 | 1151 | scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); |
bad75002 AE |
1152 | uint8_t *cp; |
1153 | ||
9ba56b95 | 1154 | cmd = GET_CMD_SP(sp); |
bad75002 AE |
1155 | scsi_for_each_prot_sg(cmd, sg, tot_dsds, i) { |
1156 | dma_addr_t sle_dma; | |
1157 | ||
1158 | /* Allocate additional continuation packets? */ | |
1159 | if (avail_dsds == 0) { | |
1160 | avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? | |
1161 | QLA_DSDS_PER_IOCB : used_dsds; | |
1162 | dsd_list_len = (avail_dsds + 1) * 12; | |
1163 | used_dsds -= avail_dsds; | |
1164 | ||
1165 | /* allocate tracking DS */ | |
1166 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
1167 | if (!dsd_ptr) | |
1168 | return 1; | |
1169 | ||
1170 | /* allocate new list */ | |
1171 | dsd_ptr->dsd_addr = next_dsd = | |
1172 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, | |
1173 | &dsd_ptr->dsd_list_dma); | |
1174 | ||
1175 | if (!next_dsd) { | |
1176 | /* | |
1177 | * Need to cleanup only this dsd_ptr, rest | |
1178 | * will be done by sp_free_dma() | |
1179 | */ | |
1180 | kfree(dsd_ptr); | |
1181 | return 1; | |
1182 | } | |
1183 | ||
1184 | list_add_tail(&dsd_ptr->list, | |
9ba56b95 | 1185 | &((struct crc_context *)sp->u.scmd.ctx)->dsd_list); |
bad75002 AE |
1186 | |
1187 | sp->flags |= SRB_CRC_CTX_DSD_VALID; | |
1188 | ||
1189 | /* add new list to cmd iocb or last list */ | |
1190 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
1191 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
1192 | *cur_dsd++ = dsd_list_len; | |
1193 | cur_dsd = (uint32_t *)next_dsd; | |
1194 | } | |
1195 | sle_dma = sg_dma_address(sg); | |
9ba56b95 | 1196 | if (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_PASS) { |
7c3df132 SK |
1197 | ql_dbg(ql_dbg_io, vha, 0x3027, |
1198 | "%s(): %p, sg_entry %d - " | |
1199 | "addr=0x%x0x%x, len=%d.\n", | |
1200 | __func__, cur_dsd, i, | |
1201 | LSD(sle_dma), MSD(sle_dma), sg_dma_len(sg)); | |
bad75002 AE |
1202 | } |
1203 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
1204 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
1205 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
1206 | ||
9ba56b95 | 1207 | if (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_PASS) { |
bad75002 | 1208 | cp = page_address(sg_page(sg)) + sg->offset; |
7c3df132 SK |
1209 | ql_dbg(ql_dbg_io, vha, 0x3028, |
1210 | "%s(): Protection Data buffer = %p.\n", __func__, | |
1211 | cp); | |
bad75002 AE |
1212 | } |
1213 | avail_dsds--; | |
1214 | } | |
1215 | /* Null termination */ | |
1216 | *cur_dsd++ = 0; | |
1217 | *cur_dsd++ = 0; | |
1218 | *cur_dsd++ = 0; | |
1219 | return 0; | |
1220 | } | |
1221 | ||
1222 | /** | |
1223 | * qla24xx_build_scsi_crc_2_iocbs() - Build IOCB command utilizing Command | |
1224 | * Type 6 IOCB types. | |
1225 | * | |
1226 | * @sp: SRB command to process | |
1227 | * @cmd_pkt: Command type 3 IOCB | |
1228 | * @tot_dsds: Total number of segments to transfer | |
1229 | */ | |
1230 | static inline int | |
1231 | qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt, | |
1232 | uint16_t tot_dsds, uint16_t tot_prot_dsds, uint16_t fw_prot_opts) | |
1233 | { | |
1234 | uint32_t *cur_dsd, *fcp_dl; | |
1235 | scsi_qla_host_t *vha; | |
1236 | struct scsi_cmnd *cmd; | |
1237 | struct scatterlist *cur_seg; | |
1238 | int sgc; | |
8cb2049c | 1239 | uint32_t total_bytes = 0; |
bad75002 AE |
1240 | uint32_t data_bytes; |
1241 | uint32_t dif_bytes; | |
1242 | uint8_t bundling = 1; | |
1243 | uint16_t blk_size; | |
1244 | uint8_t *clr_ptr; | |
1245 | struct crc_context *crc_ctx_pkt = NULL; | |
1246 | struct qla_hw_data *ha; | |
1247 | uint8_t additional_fcpcdb_len; | |
1248 | uint16_t fcp_cmnd_len; | |
1249 | struct fcp_cmnd *fcp_cmnd; | |
1250 | dma_addr_t crc_ctx_dma; | |
ff2fc42e | 1251 | char tag[2]; |
bad75002 | 1252 | |
9ba56b95 | 1253 | cmd = GET_CMD_SP(sp); |
bad75002 AE |
1254 | |
1255 | sgc = 0; | |
1256 | /* Update entry type to indicate Command Type CRC_2 IOCB */ | |
1257 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
1258 | __constant_cpu_to_le32(COMMAND_TYPE_CRC_2); | |
1259 | ||
7c3df132 SK |
1260 | vha = sp->fcport->vha; |
1261 | ha = vha->hw; | |
1262 | ||
bad75002 AE |
1263 | /* No data transfer */ |
1264 | data_bytes = scsi_bufflen(cmd); | |
1265 | if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { | |
bad75002 AE |
1266 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
1267 | return QLA_SUCCESS; | |
1268 | } | |
1269 | ||
c6d39e23 | 1270 | cmd_pkt->vp_index = sp->fcport->vha->vp_idx; |
bad75002 AE |
1271 | |
1272 | /* Set transfer direction */ | |
1273 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { | |
1274 | cmd_pkt->control_flags = | |
1275 | __constant_cpu_to_le16(CF_WRITE_DATA); | |
1276 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
1277 | cmd_pkt->control_flags = | |
1278 | __constant_cpu_to_le16(CF_READ_DATA); | |
1279 | } | |
1280 | ||
9ba56b95 GM |
1281 | if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || |
1282 | (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP) || | |
1283 | (scsi_get_prot_op(cmd) == SCSI_PROT_READ_STRIP) || | |
1284 | (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_INSERT)) | |
bad75002 AE |
1285 | bundling = 0; |
1286 | ||
1287 | /* Allocate CRC context from global pool */ | |
9ba56b95 GM |
1288 | crc_ctx_pkt = sp->u.scmd.ctx = |
1289 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma); | |
bad75002 AE |
1290 | |
1291 | if (!crc_ctx_pkt) | |
1292 | goto crc_queuing_error; | |
1293 | ||
1294 | /* Zero out CTX area. */ | |
1295 | clr_ptr = (uint8_t *)crc_ctx_pkt; | |
1296 | memset(clr_ptr, 0, sizeof(*crc_ctx_pkt)); | |
1297 | ||
1298 | crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma; | |
1299 | ||
1300 | sp->flags |= SRB_CRC_CTX_DMA_VALID; | |
1301 | ||
1302 | /* Set handle */ | |
1303 | crc_ctx_pkt->handle = cmd_pkt->handle; | |
1304 | ||
1305 | INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list); | |
1306 | ||
e02587d7 | 1307 | qla24xx_set_t10dif_tags(sp, (struct fw_dif_context *) |
bad75002 AE |
1308 | &crc_ctx_pkt->ref_tag, tot_prot_dsds); |
1309 | ||
1310 | cmd_pkt->crc_context_address[0] = cpu_to_le32(LSD(crc_ctx_dma)); | |
1311 | cmd_pkt->crc_context_address[1] = cpu_to_le32(MSD(crc_ctx_dma)); | |
1312 | cmd_pkt->crc_context_len = CRC_CONTEXT_LEN_FW; | |
1313 | ||
1314 | /* Determine SCSI command length -- align to 4 byte boundary */ | |
1315 | if (cmd->cmd_len > 16) { | |
bad75002 AE |
1316 | additional_fcpcdb_len = cmd->cmd_len - 16; |
1317 | if ((cmd->cmd_len % 4) != 0) { | |
1318 | /* SCSI cmd > 16 bytes must be multiple of 4 */ | |
1319 | goto crc_queuing_error; | |
1320 | } | |
1321 | fcp_cmnd_len = 12 + cmd->cmd_len + 4; | |
1322 | } else { | |
1323 | additional_fcpcdb_len = 0; | |
1324 | fcp_cmnd_len = 12 + 16 + 4; | |
1325 | } | |
1326 | ||
1327 | fcp_cmnd = &crc_ctx_pkt->fcp_cmnd; | |
1328 | ||
1329 | fcp_cmnd->additional_cdb_len = additional_fcpcdb_len; | |
1330 | if (cmd->sc_data_direction == DMA_TO_DEVICE) | |
1331 | fcp_cmnd->additional_cdb_len |= 1; | |
1332 | else if (cmd->sc_data_direction == DMA_FROM_DEVICE) | |
1333 | fcp_cmnd->additional_cdb_len |= 2; | |
1334 | ||
9ba56b95 | 1335 | int_to_scsilun(cmd->device->lun, &fcp_cmnd->lun); |
bad75002 AE |
1336 | memcpy(fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); |
1337 | cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(fcp_cmnd_len); | |
1338 | cmd_pkt->fcp_cmnd_dseg_address[0] = cpu_to_le32( | |
1339 | LSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF)); | |
1340 | cmd_pkt->fcp_cmnd_dseg_address[1] = cpu_to_le32( | |
1341 | MSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF)); | |
65155b37 | 1342 | fcp_cmnd->task_management = 0; |
bad75002 | 1343 | |
ff2fc42e AV |
1344 | /* |
1345 | * Update tagged queuing modifier if using command tag queuing | |
1346 | */ | |
1347 | if (scsi_populate_tag_msg(cmd, tag)) { | |
1348 | switch (tag[0]) { | |
1349 | case HEAD_OF_QUEUE_TAG: | |
1350 | fcp_cmnd->task_attribute = TSK_HEAD_OF_QUEUE; | |
1351 | break; | |
1352 | case ORDERED_QUEUE_TAG: | |
1353 | fcp_cmnd->task_attribute = TSK_ORDERED; | |
1354 | break; | |
1355 | default: | |
1356 | fcp_cmnd->task_attribute = 0; | |
1357 | break; | |
1358 | } | |
1359 | } else { | |
1360 | fcp_cmnd->task_attribute = 0; | |
1361 | } | |
1362 | ||
bad75002 AE |
1363 | cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */ |
1364 | ||
bad75002 | 1365 | /* Compute dif len and adjust data len to incude protection */ |
bad75002 AE |
1366 | dif_bytes = 0; |
1367 | blk_size = cmd->device->sector_size; | |
8cb2049c AE |
1368 | dif_bytes = (data_bytes / blk_size) * 8; |
1369 | ||
9ba56b95 | 1370 | switch (scsi_get_prot_op(GET_CMD_SP(sp))) { |
8cb2049c AE |
1371 | case SCSI_PROT_READ_INSERT: |
1372 | case SCSI_PROT_WRITE_STRIP: | |
1373 | total_bytes = data_bytes; | |
1374 | data_bytes += dif_bytes; | |
1375 | break; | |
1376 | ||
1377 | case SCSI_PROT_READ_STRIP: | |
1378 | case SCSI_PROT_WRITE_INSERT: | |
1379 | case SCSI_PROT_READ_PASS: | |
1380 | case SCSI_PROT_WRITE_PASS: | |
1381 | total_bytes = data_bytes + dif_bytes; | |
1382 | break; | |
1383 | default: | |
1384 | BUG(); | |
bad75002 AE |
1385 | } |
1386 | ||
e02587d7 | 1387 | if (!qla2x00_hba_err_chk_enabled(sp)) |
bad75002 AE |
1388 | fw_prot_opts |= 0x10; /* Disable Guard tag checking */ |
1389 | ||
1390 | if (!bundling) { | |
1391 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.nobundling.data_address; | |
1392 | } else { | |
1393 | /* | |
1394 | * Configure Bundling if we need to fetch interlaving | |
1395 | * protection PCI accesses | |
1396 | */ | |
1397 | fw_prot_opts |= PO_ENABLE_DIF_BUNDLING; | |
1398 | crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes); | |
1399 | crc_ctx_pkt->u.bundling.dseg_count = cpu_to_le16(tot_dsds - | |
1400 | tot_prot_dsds); | |
1401 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.data_address; | |
1402 | } | |
1403 | ||
1404 | /* Finish the common fields of CRC pkt */ | |
1405 | crc_ctx_pkt->blk_size = cpu_to_le16(blk_size); | |
1406 | crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts); | |
1407 | crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes); | |
1408 | crc_ctx_pkt->guard_seed = __constant_cpu_to_le16(0); | |
1409 | /* Fibre channel byte count */ | |
1410 | cmd_pkt->byte_count = cpu_to_le32(total_bytes); | |
1411 | fcp_dl = (uint32_t *)(crc_ctx_pkt->fcp_cmnd.cdb + 16 + | |
1412 | additional_fcpcdb_len); | |
1413 | *fcp_dl = htonl(total_bytes); | |
1414 | ||
0c470874 | 1415 | if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { |
0c470874 AE |
1416 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
1417 | return QLA_SUCCESS; | |
1418 | } | |
bad75002 AE |
1419 | /* Walks data segments */ |
1420 | ||
1421 | cmd_pkt->control_flags |= | |
1422 | __constant_cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE); | |
8cb2049c AE |
1423 | |
1424 | if (!bundling && tot_prot_dsds) { | |
1425 | if (qla24xx_walk_and_build_sglist_no_difb(ha, sp, | |
1426 | cur_dsd, tot_dsds)) | |
1427 | goto crc_queuing_error; | |
1428 | } else if (qla24xx_walk_and_build_sglist(ha, sp, cur_dsd, | |
bad75002 AE |
1429 | (tot_dsds - tot_prot_dsds))) |
1430 | goto crc_queuing_error; | |
1431 | ||
1432 | if (bundling && tot_prot_dsds) { | |
1433 | /* Walks dif segments */ | |
1434 | cur_seg = scsi_prot_sglist(cmd); | |
1435 | cmd_pkt->control_flags |= | |
1436 | __constant_cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE); | |
1437 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.dif_address; | |
1438 | if (qla24xx_walk_and_build_prot_sglist(ha, sp, cur_dsd, | |
1439 | tot_prot_dsds)) | |
1440 | goto crc_queuing_error; | |
1441 | } | |
1442 | return QLA_SUCCESS; | |
1443 | ||
1444 | crc_queuing_error: | |
bad75002 AE |
1445 | /* Cleanup will be performed by the caller */ |
1446 | ||
1447 | return QLA_FUNCTION_FAILED; | |
1448 | } | |
2b6c0cee AV |
1449 | |
1450 | /** | |
1451 | * qla24xx_start_scsi() - Send a SCSI command to the ISP | |
1452 | * @sp: command to send to the ISP | |
1453 | * | |
cc3ef7bc | 1454 | * Returns non-zero if a failure occurred, else zero. |
2b6c0cee AV |
1455 | */ |
1456 | int | |
1457 | qla24xx_start_scsi(srb_t *sp) | |
1458 | { | |
385d70b4 | 1459 | int ret, nseg; |
2b6c0cee | 1460 | unsigned long flags; |
2b6c0cee AV |
1461 | uint32_t *clr_ptr; |
1462 | uint32_t index; | |
1463 | uint32_t handle; | |
1464 | struct cmd_type_7 *cmd_pkt; | |
2b6c0cee AV |
1465 | uint16_t cnt; |
1466 | uint16_t req_cnt; | |
1467 | uint16_t tot_dsds; | |
73208dfd AC |
1468 | struct req_que *req = NULL; |
1469 | struct rsp_que *rsp = NULL; | |
9ba56b95 | 1470 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
444786d7 | 1471 | struct scsi_qla_host *vha = sp->fcport->vha; |
73208dfd | 1472 | struct qla_hw_data *ha = vha->hw; |
ff2fc42e | 1473 | char tag[2]; |
2b6c0cee AV |
1474 | |
1475 | /* Setup device pointers. */ | |
1476 | ret = 0; | |
73208dfd | 1477 | |
59e0b8b0 AC |
1478 | qla25xx_set_que(sp, &rsp); |
1479 | req = vha->req; | |
73208dfd | 1480 | |
2b6c0cee AV |
1481 | /* So we know we haven't pci_map'ed anything yet */ |
1482 | tot_dsds = 0; | |
1483 | ||
1484 | /* Send marker if required */ | |
e315cd28 | 1485 | if (vha->marker_needed != 0) { |
7c3df132 SK |
1486 | if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != |
1487 | QLA_SUCCESS) | |
2b6c0cee | 1488 | return QLA_FUNCTION_FAILED; |
e315cd28 | 1489 | vha->marker_needed = 0; |
2b6c0cee AV |
1490 | } |
1491 | ||
1492 | /* Acquire ring specific lock */ | |
e315cd28 | 1493 | spin_lock_irqsave(&ha->hardware_lock, flags); |
2b6c0cee AV |
1494 | |
1495 | /* Check for room in outstanding command list. */ | |
e315cd28 | 1496 | handle = req->current_outstanding_cmd; |
2b6c0cee AV |
1497 | for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { |
1498 | handle++; | |
1499 | if (handle == MAX_OUTSTANDING_COMMANDS) | |
1500 | handle = 1; | |
e315cd28 | 1501 | if (!req->outstanding_cmds[handle]) |
2b6c0cee AV |
1502 | break; |
1503 | } | |
7c3df132 | 1504 | if (index == MAX_OUTSTANDING_COMMANDS) { |
2b6c0cee | 1505 | goto queuing_error; |
7c3df132 | 1506 | } |
2b6c0cee AV |
1507 | |
1508 | /* Map the sg table so we have an accurate count of sg entries needed */ | |
2c3dfe3f SJ |
1509 | if (scsi_sg_count(cmd)) { |
1510 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
1511 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
1512 | if (unlikely(!nseg)) | |
2b6c0cee | 1513 | goto queuing_error; |
2c3dfe3f SJ |
1514 | } else |
1515 | nseg = 0; | |
1516 | ||
385d70b4 | 1517 | tot_dsds = nseg; |
7c3df132 | 1518 | req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); |
e315cd28 | 1519 | if (req->cnt < (req_cnt + 2)) { |
08029990 | 1520 | cnt = RD_REG_DWORD_RELAXED(req->req_q_out); |
73208dfd | 1521 | |
e315cd28 AC |
1522 | if (req->ring_index < cnt) |
1523 | req->cnt = cnt - req->ring_index; | |
2b6c0cee | 1524 | else |
e315cd28 AC |
1525 | req->cnt = req->length - |
1526 | (req->ring_index - cnt); | |
a6eb3c9f CL |
1527 | if (req->cnt < (req_cnt + 2)) |
1528 | goto queuing_error; | |
2b6c0cee | 1529 | } |
2b6c0cee AV |
1530 | |
1531 | /* Build command packet. */ | |
e315cd28 AC |
1532 | req->current_outstanding_cmd = handle; |
1533 | req->outstanding_cmds[handle] = sp; | |
cf53b069 | 1534 | sp->handle = handle; |
9ba56b95 | 1535 | cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
e315cd28 | 1536 | req->cnt -= req_cnt; |
2b6c0cee | 1537 | |
e315cd28 | 1538 | cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; |
2afa19a9 | 1539 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); |
2b6c0cee AV |
1540 | |
1541 | /* Zero out remaining portion of packet. */ | |
72df8325 | 1542 | /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ |
2b6c0cee AV |
1543 | clr_ptr = (uint32_t *)cmd_pkt + 2; |
1544 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
1545 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
1546 | ||
1547 | /* Set NPORT-ID and LUN number*/ | |
1548 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1549 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1550 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
1551 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
c6d39e23 | 1552 | cmd_pkt->vp_index = sp->fcport->vha->vp_idx; |
2b6c0cee | 1553 | |
9ba56b95 | 1554 | int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); |
0d4be124 | 1555 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); |
2b6c0cee | 1556 | |
ff2fc42e AV |
1557 | /* Update tagged queuing modifier -- default is TSK_SIMPLE (0). */ |
1558 | if (scsi_populate_tag_msg(cmd, tag)) { | |
1559 | switch (tag[0]) { | |
1560 | case HEAD_OF_QUEUE_TAG: | |
1561 | cmd_pkt->task = TSK_HEAD_OF_QUEUE; | |
1562 | break; | |
1563 | case ORDERED_QUEUE_TAG: | |
1564 | cmd_pkt->task = TSK_ORDERED; | |
1565 | break; | |
1566 | } | |
1567 | } | |
1568 | ||
2b6c0cee AV |
1569 | /* Load SCSI command packet. */ |
1570 | memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); | |
1571 | host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); | |
1572 | ||
385d70b4 | 1573 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); |
2b6c0cee AV |
1574 | |
1575 | /* Build IOCB segments */ | |
1576 | qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds); | |
1577 | ||
1578 | /* Set total data segment count. */ | |
1579 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
2afa19a9 AC |
1580 | /* Specify response queue number where completion should happen */ |
1581 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
2b6c0cee | 1582 | wmb(); |
2b6c0cee | 1583 | /* Adjust ring index. */ |
e315cd28 AC |
1584 | req->ring_index++; |
1585 | if (req->ring_index == req->length) { | |
1586 | req->ring_index = 0; | |
1587 | req->ring_ptr = req->ring; | |
2b6c0cee | 1588 | } else |
e315cd28 | 1589 | req->ring_ptr++; |
2b6c0cee AV |
1590 | |
1591 | sp->flags |= SRB_DMA_VALID; | |
2b6c0cee AV |
1592 | |
1593 | /* Set chip new ring index. */ | |
08029990 AV |
1594 | WRT_REG_DWORD(req->req_q_in, req->ring_index); |
1595 | RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); | |
2b6c0cee | 1596 | |
4fdfefe5 | 1597 | /* Manage unprocessed RIO/ZIO commands in response queue. */ |
e315cd28 | 1598 | if (vha->flags.process_response_queue && |
73208dfd | 1599 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) |
2afa19a9 | 1600 | qla24xx_process_response_queue(vha, rsp); |
4fdfefe5 | 1601 | |
e315cd28 | 1602 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
2b6c0cee AV |
1603 | return QLA_SUCCESS; |
1604 | ||
1605 | queuing_error: | |
385d70b4 FT |
1606 | if (tot_dsds) |
1607 | scsi_dma_unmap(cmd); | |
1608 | ||
e315cd28 | 1609 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
2b6c0cee AV |
1610 | |
1611 | return QLA_FUNCTION_FAILED; | |
1da177e4 | 1612 | } |
68ca949c | 1613 | |
bad75002 AE |
1614 | |
1615 | /** | |
1616 | * qla24xx_dif_start_scsi() - Send a SCSI command to the ISP | |
1617 | * @sp: command to send to the ISP | |
1618 | * | |
1619 | * Returns non-zero if a failure occurred, else zero. | |
1620 | */ | |
1621 | int | |
1622 | qla24xx_dif_start_scsi(srb_t *sp) | |
1623 | { | |
1624 | int nseg; | |
1625 | unsigned long flags; | |
1626 | uint32_t *clr_ptr; | |
1627 | uint32_t index; | |
1628 | uint32_t handle; | |
1629 | uint16_t cnt; | |
1630 | uint16_t req_cnt = 0; | |
1631 | uint16_t tot_dsds; | |
1632 | uint16_t tot_prot_dsds; | |
1633 | uint16_t fw_prot_opts = 0; | |
1634 | struct req_que *req = NULL; | |
1635 | struct rsp_que *rsp = NULL; | |
9ba56b95 | 1636 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
bad75002 AE |
1637 | struct scsi_qla_host *vha = sp->fcport->vha; |
1638 | struct qla_hw_data *ha = vha->hw; | |
1639 | struct cmd_type_crc_2 *cmd_pkt; | |
1640 | uint32_t status = 0; | |
1641 | ||
1642 | #define QDSS_GOT_Q_SPACE BIT_0 | |
1643 | ||
0c470874 AE |
1644 | /* Only process protection or >16 cdb in this routine */ |
1645 | if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) { | |
1646 | if (cmd->cmd_len <= 16) | |
1647 | return qla24xx_start_scsi(sp); | |
1648 | } | |
bad75002 AE |
1649 | |
1650 | /* Setup device pointers. */ | |
1651 | ||
1652 | qla25xx_set_que(sp, &rsp); | |
1653 | req = vha->req; | |
1654 | ||
1655 | /* So we know we haven't pci_map'ed anything yet */ | |
1656 | tot_dsds = 0; | |
1657 | ||
1658 | /* Send marker if required */ | |
1659 | if (vha->marker_needed != 0) { | |
1660 | if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != | |
1661 | QLA_SUCCESS) | |
1662 | return QLA_FUNCTION_FAILED; | |
1663 | vha->marker_needed = 0; | |
1664 | } | |
1665 | ||
1666 | /* Acquire ring specific lock */ | |
1667 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
1668 | ||
1669 | /* Check for room in outstanding command list. */ | |
1670 | handle = req->current_outstanding_cmd; | |
1671 | for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { | |
1672 | handle++; | |
1673 | if (handle == MAX_OUTSTANDING_COMMANDS) | |
1674 | handle = 1; | |
1675 | if (!req->outstanding_cmds[handle]) | |
1676 | break; | |
1677 | } | |
1678 | ||
1679 | if (index == MAX_OUTSTANDING_COMMANDS) | |
1680 | goto queuing_error; | |
1681 | ||
1682 | /* Compute number of required data segments */ | |
1683 | /* Map the sg table so we have an accurate count of sg entries needed */ | |
1684 | if (scsi_sg_count(cmd)) { | |
1685 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
1686 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
1687 | if (unlikely(!nseg)) | |
1688 | goto queuing_error; | |
1689 | else | |
1690 | sp->flags |= SRB_DMA_VALID; | |
8cb2049c AE |
1691 | |
1692 | if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || | |
1693 | (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { | |
1694 | struct qla2_sgx sgx; | |
1695 | uint32_t partial; | |
1696 | ||
1697 | memset(&sgx, 0, sizeof(struct qla2_sgx)); | |
1698 | sgx.tot_bytes = scsi_bufflen(cmd); | |
1699 | sgx.cur_sg = scsi_sglist(cmd); | |
1700 | sgx.sp = sp; | |
1701 | ||
1702 | nseg = 0; | |
1703 | while (qla24xx_get_one_block_sg( | |
1704 | cmd->device->sector_size, &sgx, &partial)) | |
1705 | nseg++; | |
1706 | } | |
bad75002 AE |
1707 | } else |
1708 | nseg = 0; | |
1709 | ||
1710 | /* number of required data segments */ | |
1711 | tot_dsds = nseg; | |
1712 | ||
1713 | /* Compute number of required protection segments */ | |
1714 | if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) { | |
1715 | nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd), | |
1716 | scsi_prot_sg_count(cmd), cmd->sc_data_direction); | |
1717 | if (unlikely(!nseg)) | |
1718 | goto queuing_error; | |
1719 | else | |
1720 | sp->flags |= SRB_CRC_PROT_DMA_VALID; | |
8cb2049c AE |
1721 | |
1722 | if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || | |
1723 | (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { | |
1724 | nseg = scsi_bufflen(cmd) / cmd->device->sector_size; | |
1725 | } | |
bad75002 AE |
1726 | } else { |
1727 | nseg = 0; | |
1728 | } | |
1729 | ||
1730 | req_cnt = 1; | |
1731 | /* Total Data and protection sg segment(s) */ | |
1732 | tot_prot_dsds = nseg; | |
1733 | tot_dsds += nseg; | |
1734 | if (req->cnt < (req_cnt + 2)) { | |
1735 | cnt = RD_REG_DWORD_RELAXED(req->req_q_out); | |
1736 | ||
1737 | if (req->ring_index < cnt) | |
1738 | req->cnt = cnt - req->ring_index; | |
1739 | else | |
1740 | req->cnt = req->length - | |
1741 | (req->ring_index - cnt); | |
a6eb3c9f CL |
1742 | if (req->cnt < (req_cnt + 2)) |
1743 | goto queuing_error; | |
bad75002 AE |
1744 | } |
1745 | ||
bad75002 AE |
1746 | status |= QDSS_GOT_Q_SPACE; |
1747 | ||
1748 | /* Build header part of command packet (excluding the OPCODE). */ | |
1749 | req->current_outstanding_cmd = handle; | |
1750 | req->outstanding_cmds[handle] = sp; | |
8cb2049c | 1751 | sp->handle = handle; |
9ba56b95 | 1752 | cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
bad75002 AE |
1753 | req->cnt -= req_cnt; |
1754 | ||
1755 | /* Fill-in common area */ | |
1756 | cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr; | |
1757 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); | |
1758 | ||
1759 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
1760 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
1761 | ||
1762 | /* Set NPORT-ID and LUN number*/ | |
1763 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1764 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1765 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
1766 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
1767 | ||
9ba56b95 | 1768 | int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); |
bad75002 AE |
1769 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); |
1770 | ||
1771 | /* Total Data and protection segment(s) */ | |
1772 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
1773 | ||
1774 | /* Build IOCB segments and adjust for data protection segments */ | |
1775 | if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *) | |
1776 | req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) != | |
1777 | QLA_SUCCESS) | |
1778 | goto queuing_error; | |
1779 | ||
1780 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
1781 | /* Specify response queue number where completion should happen */ | |
1782 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
1783 | cmd_pkt->timeout = __constant_cpu_to_le16(0); | |
1784 | wmb(); | |
1785 | ||
1786 | /* Adjust ring index. */ | |
1787 | req->ring_index++; | |
1788 | if (req->ring_index == req->length) { | |
1789 | req->ring_index = 0; | |
1790 | req->ring_ptr = req->ring; | |
1791 | } else | |
1792 | req->ring_ptr++; | |
1793 | ||
1794 | /* Set chip new ring index. */ | |
1795 | WRT_REG_DWORD(req->req_q_in, req->ring_index); | |
1796 | RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); | |
1797 | ||
1798 | /* Manage unprocessed RIO/ZIO commands in response queue. */ | |
1799 | if (vha->flags.process_response_queue && | |
1800 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) | |
1801 | qla24xx_process_response_queue(vha, rsp); | |
1802 | ||
1803 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
1804 | ||
1805 | return QLA_SUCCESS; | |
1806 | ||
1807 | queuing_error: | |
1808 | if (status & QDSS_GOT_Q_SPACE) { | |
1809 | req->outstanding_cmds[handle] = NULL; | |
1810 | req->cnt += req_cnt; | |
1811 | } | |
1812 | /* Cleanup will be performed by the caller (queuecommand) */ | |
1813 | ||
1814 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
bad75002 AE |
1815 | return QLA_FUNCTION_FAILED; |
1816 | } | |
1817 | ||
1818 | ||
59e0b8b0 | 1819 | static void qla25xx_set_que(srb_t *sp, struct rsp_que **rsp) |
68ca949c | 1820 | { |
9ba56b95 | 1821 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
68ca949c AC |
1822 | struct qla_hw_data *ha = sp->fcport->vha->hw; |
1823 | int affinity = cmd->request->cpu; | |
1824 | ||
7163ea81 | 1825 | if (ha->flags.cpu_affinity_enabled && affinity >= 0 && |
59e0b8b0 | 1826 | affinity < ha->max_rsp_queues - 1) |
68ca949c | 1827 | *rsp = ha->rsp_q_map[affinity + 1]; |
59e0b8b0 | 1828 | else |
68ca949c | 1829 | *rsp = ha->rsp_q_map[0]; |
68ca949c | 1830 | } |
ac280b67 AV |
1831 | |
1832 | /* Generic Control-SRB manipulation functions. */ | |
d94d10e7 GM |
1833 | void * |
1834 | qla2x00_alloc_iocbs(scsi_qla_host_t *vha, srb_t *sp) | |
ac280b67 | 1835 | { |
ac280b67 AV |
1836 | struct qla_hw_data *ha = vha->hw; |
1837 | struct req_que *req = ha->req_q_map[0]; | |
1838 | device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id); | |
1839 | uint32_t index, handle; | |
1840 | request_t *pkt; | |
1841 | uint16_t cnt, req_cnt; | |
1842 | ||
1843 | pkt = NULL; | |
1844 | req_cnt = 1; | |
d94d10e7 GM |
1845 | handle = 0; |
1846 | ||
1847 | if (!sp) | |
1848 | goto skip_cmd_array; | |
ac280b67 AV |
1849 | |
1850 | /* Check for room in outstanding command list. */ | |
1851 | handle = req->current_outstanding_cmd; | |
1852 | for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { | |
1853 | handle++; | |
1854 | if (handle == MAX_OUTSTANDING_COMMANDS) | |
1855 | handle = 1; | |
1856 | if (!req->outstanding_cmds[handle]) | |
1857 | break; | |
1858 | } | |
7c3df132 SK |
1859 | if (index == MAX_OUTSTANDING_COMMANDS) { |
1860 | ql_log(ql_log_warn, vha, 0x700b, | |
1861 | "No room on oustanding cmd array.\n"); | |
ac280b67 | 1862 | goto queuing_error; |
7c3df132 | 1863 | } |
ac280b67 | 1864 | |
d94d10e7 GM |
1865 | /* Prep command array. */ |
1866 | req->current_outstanding_cmd = handle; | |
1867 | req->outstanding_cmds[handle] = sp; | |
1868 | sp->handle = handle; | |
1869 | ||
5780790e | 1870 | /* Adjust entry-counts as needed. */ |
9ba56b95 GM |
1871 | if (sp->type != SRB_SCSI_CMD) |
1872 | req_cnt = sp->iocbs; | |
5780790e | 1873 | |
d94d10e7 | 1874 | skip_cmd_array: |
ac280b67 AV |
1875 | /* Check for room on request queue. */ |
1876 | if (req->cnt < req_cnt) { | |
6246b8a1 | 1877 | if (ha->mqenable || IS_QLA83XX(ha)) |
ac280b67 | 1878 | cnt = RD_REG_DWORD(®->isp25mq.req_q_out); |
d94d10e7 GM |
1879 | else if (IS_QLA82XX(ha)) |
1880 | cnt = RD_REG_DWORD(®->isp82.req_q_out); | |
ac280b67 AV |
1881 | else if (IS_FWI2_CAPABLE(ha)) |
1882 | cnt = RD_REG_DWORD(®->isp24.req_q_out); | |
1883 | else | |
1884 | cnt = qla2x00_debounce_register( | |
1885 | ISP_REQ_Q_OUT(ha, ®->isp)); | |
1886 | ||
1887 | if (req->ring_index < cnt) | |
1888 | req->cnt = cnt - req->ring_index; | |
1889 | else | |
1890 | req->cnt = req->length - | |
1891 | (req->ring_index - cnt); | |
1892 | } | |
1893 | if (req->cnt < req_cnt) | |
1894 | goto queuing_error; | |
1895 | ||
1896 | /* Prep packet */ | |
ac280b67 | 1897 | req->cnt -= req_cnt; |
ac280b67 AV |
1898 | pkt = req->ring_ptr; |
1899 | memset(pkt, 0, REQUEST_ENTRY_SIZE); | |
1900 | pkt->entry_count = req_cnt; | |
1901 | pkt->handle = handle; | |
ac280b67 AV |
1902 | |
1903 | queuing_error: | |
1904 | return pkt; | |
1905 | } | |
1906 | ||
ac280b67 AV |
1907 | static void |
1908 | qla24xx_login_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1909 | { | |
9ba56b95 | 1910 | struct srb_iocb *lio = &sp->u.iocb_cmd; |
ac280b67 AV |
1911 | |
1912 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1913 | logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI); | |
4916392b | 1914 | if (lio->u.logio.flags & SRB_LOGIN_COND_PLOGI) |
ac280b67 | 1915 | logio->control_flags |= cpu_to_le16(LCF_COND_PLOGI); |
4916392b | 1916 | if (lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI) |
ac280b67 AV |
1917 | logio->control_flags |= cpu_to_le16(LCF_SKIP_PRLI); |
1918 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1919 | logio->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1920 | logio->port_id[1] = sp->fcport->d_id.b.area; | |
1921 | logio->port_id[2] = sp->fcport->d_id.b.domain; | |
c6d39e23 | 1922 | logio->vp_index = sp->fcport->vha->vp_idx; |
ac280b67 AV |
1923 | } |
1924 | ||
1925 | static void | |
1926 | qla2x00_login_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1927 | { | |
1928 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
9ba56b95 | 1929 | struct srb_iocb *lio = &sp->u.iocb_cmd; |
ac280b67 AV |
1930 | uint16_t opts; |
1931 | ||
b963752f | 1932 | mbx->entry_type = MBX_IOCB_TYPE; |
ac280b67 AV |
1933 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); |
1934 | mbx->mb0 = cpu_to_le16(MBC_LOGIN_FABRIC_PORT); | |
4916392b MI |
1935 | opts = lio->u.logio.flags & SRB_LOGIN_COND_PLOGI ? BIT_0 : 0; |
1936 | opts |= lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI ? BIT_1 : 0; | |
ac280b67 AV |
1937 | if (HAS_EXTENDED_IDS(ha)) { |
1938 | mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); | |
1939 | mbx->mb10 = cpu_to_le16(opts); | |
1940 | } else { | |
1941 | mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | opts); | |
1942 | } | |
1943 | mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); | |
1944 | mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | | |
1945 | sp->fcport->d_id.b.al_pa); | |
c6d39e23 | 1946 | mbx->mb9 = cpu_to_le16(sp->fcport->vha->vp_idx); |
ac280b67 AV |
1947 | } |
1948 | ||
1949 | static void | |
1950 | qla24xx_logout_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1951 | { | |
1952 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1953 | logio->control_flags = | |
1954 | cpu_to_le16(LCF_COMMAND_LOGO|LCF_IMPL_LOGO); | |
1955 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1956 | logio->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1957 | logio->port_id[1] = sp->fcport->d_id.b.area; | |
1958 | logio->port_id[2] = sp->fcport->d_id.b.domain; | |
c6d39e23 | 1959 | logio->vp_index = sp->fcport->vha->vp_idx; |
ac280b67 AV |
1960 | } |
1961 | ||
1962 | static void | |
1963 | qla2x00_logout_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1964 | { | |
1965 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
1966 | ||
b963752f | 1967 | mbx->entry_type = MBX_IOCB_TYPE; |
ac280b67 AV |
1968 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); |
1969 | mbx->mb0 = cpu_to_le16(MBC_LOGOUT_FABRIC_PORT); | |
1970 | mbx->mb1 = HAS_EXTENDED_IDS(ha) ? | |
1971 | cpu_to_le16(sp->fcport->loop_id): | |
1972 | cpu_to_le16(sp->fcport->loop_id << 8); | |
1973 | mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); | |
1974 | mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | | |
1975 | sp->fcport->d_id.b.al_pa); | |
c6d39e23 | 1976 | mbx->mb9 = cpu_to_le16(sp->fcport->vha->vp_idx); |
ac280b67 AV |
1977 | /* Implicit: mbx->mbx10 = 0. */ |
1978 | } | |
1979 | ||
5ff1d584 AV |
1980 | static void |
1981 | qla24xx_adisc_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1982 | { | |
1983 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1984 | logio->control_flags = cpu_to_le16(LCF_COMMAND_ADISC); | |
1985 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
c6d39e23 | 1986 | logio->vp_index = sp->fcport->vha->vp_idx; |
5ff1d584 AV |
1987 | } |
1988 | ||
1989 | static void | |
1990 | qla2x00_adisc_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1991 | { | |
1992 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
1993 | ||
1994 | mbx->entry_type = MBX_IOCB_TYPE; | |
1995 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); | |
1996 | mbx->mb0 = cpu_to_le16(MBC_GET_PORT_DATABASE); | |
1997 | if (HAS_EXTENDED_IDS(ha)) { | |
1998 | mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); | |
1999 | mbx->mb10 = cpu_to_le16(BIT_0); | |
2000 | } else { | |
2001 | mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | BIT_0); | |
2002 | } | |
2003 | mbx->mb2 = cpu_to_le16(MSW(ha->async_pd_dma)); | |
2004 | mbx->mb3 = cpu_to_le16(LSW(ha->async_pd_dma)); | |
2005 | mbx->mb6 = cpu_to_le16(MSW(MSD(ha->async_pd_dma))); | |
2006 | mbx->mb7 = cpu_to_le16(LSW(MSD(ha->async_pd_dma))); | |
c6d39e23 | 2007 | mbx->mb9 = cpu_to_le16(sp->fcport->vha->vp_idx); |
5ff1d584 AV |
2008 | } |
2009 | ||
3822263e MI |
2010 | static void |
2011 | qla24xx_tm_iocb(srb_t *sp, struct tsk_mgmt_entry *tsk) | |
2012 | { | |
2013 | uint32_t flags; | |
2014 | unsigned int lun; | |
2015 | struct fc_port *fcport = sp->fcport; | |
2016 | scsi_qla_host_t *vha = fcport->vha; | |
2017 | struct qla_hw_data *ha = vha->hw; | |
9ba56b95 | 2018 | struct srb_iocb *iocb = &sp->u.iocb_cmd; |
3822263e MI |
2019 | struct req_que *req = vha->req; |
2020 | ||
2021 | flags = iocb->u.tmf.flags; | |
2022 | lun = iocb->u.tmf.lun; | |
2023 | ||
2024 | tsk->entry_type = TSK_MGMT_IOCB_TYPE; | |
2025 | tsk->entry_count = 1; | |
2026 | tsk->handle = MAKE_HANDLE(req->id, tsk->handle); | |
2027 | tsk->nport_handle = cpu_to_le16(fcport->loop_id); | |
2028 | tsk->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); | |
2029 | tsk->control_flags = cpu_to_le32(flags); | |
2030 | tsk->port_id[0] = fcport->d_id.b.al_pa; | |
2031 | tsk->port_id[1] = fcport->d_id.b.area; | |
2032 | tsk->port_id[2] = fcport->d_id.b.domain; | |
c6d39e23 | 2033 | tsk->vp_index = fcport->vha->vp_idx; |
3822263e MI |
2034 | |
2035 | if (flags == TCF_LUN_RESET) { | |
2036 | int_to_scsilun(lun, &tsk->lun); | |
2037 | host_to_fcp_swap((uint8_t *)&tsk->lun, | |
2038 | sizeof(tsk->lun)); | |
2039 | } | |
2040 | } | |
2041 | ||
9a069e19 GM |
2042 | static void |
2043 | qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) | |
2044 | { | |
9ba56b95 | 2045 | struct fc_bsg_job *bsg_job = sp->u.bsg_job; |
9a069e19 GM |
2046 | |
2047 | els_iocb->entry_type = ELS_IOCB_TYPE; | |
2048 | els_iocb->entry_count = 1; | |
2049 | els_iocb->sys_define = 0; | |
2050 | els_iocb->entry_status = 0; | |
2051 | els_iocb->handle = sp->handle; | |
2052 | els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
2053 | els_iocb->tx_dsd_count = __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
c6d39e23 | 2054 | els_iocb->vp_index = sp->fcport->vha->vp_idx; |
9a069e19 GM |
2055 | els_iocb->sof_type = EST_SOFI3; |
2056 | els_iocb->rx_dsd_count = __constant_cpu_to_le16(bsg_job->reply_payload.sg_cnt); | |
2057 | ||
4916392b | 2058 | els_iocb->opcode = |
9ba56b95 | 2059 | sp->type == SRB_ELS_CMD_RPT ? |
4916392b MI |
2060 | bsg_job->request->rqst_data.r_els.els_code : |
2061 | bsg_job->request->rqst_data.h_els.command_code; | |
9a069e19 GM |
2062 | els_iocb->port_id[0] = sp->fcport->d_id.b.al_pa; |
2063 | els_iocb->port_id[1] = sp->fcport->d_id.b.area; | |
2064 | els_iocb->port_id[2] = sp->fcport->d_id.b.domain; | |
2065 | els_iocb->control_flags = 0; | |
2066 | els_iocb->rx_byte_count = | |
2067 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
2068 | els_iocb->tx_byte_count = | |
2069 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
2070 | ||
2071 | els_iocb->tx_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2072 | (bsg_job->request_payload.sg_list))); | |
2073 | els_iocb->tx_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2074 | (bsg_job->request_payload.sg_list))); | |
2075 | els_iocb->tx_len = cpu_to_le32(sg_dma_len | |
2076 | (bsg_job->request_payload.sg_list)); | |
2077 | ||
2078 | els_iocb->rx_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2079 | (bsg_job->reply_payload.sg_list))); | |
2080 | els_iocb->rx_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2081 | (bsg_job->reply_payload.sg_list))); | |
2082 | els_iocb->rx_len = cpu_to_le32(sg_dma_len | |
2083 | (bsg_job->reply_payload.sg_list)); | |
2084 | } | |
2085 | ||
9bc4f4fb HZ |
2086 | static void |
2087 | qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb) | |
2088 | { | |
2089 | uint16_t avail_dsds; | |
2090 | uint32_t *cur_dsd; | |
2091 | struct scatterlist *sg; | |
2092 | int index; | |
2093 | uint16_t tot_dsds; | |
2094 | scsi_qla_host_t *vha = sp->fcport->vha; | |
2095 | struct qla_hw_data *ha = vha->hw; | |
9ba56b95 | 2096 | struct fc_bsg_job *bsg_job = sp->u.bsg_job; |
9bc4f4fb HZ |
2097 | int loop_iterartion = 0; |
2098 | int cont_iocb_prsnt = 0; | |
2099 | int entry_count = 1; | |
2100 | ||
2101 | memset(ct_iocb, 0, sizeof(ms_iocb_entry_t)); | |
2102 | ct_iocb->entry_type = CT_IOCB_TYPE; | |
2103 | ct_iocb->entry_status = 0; | |
2104 | ct_iocb->handle1 = sp->handle; | |
2105 | SET_TARGET_ID(ha, ct_iocb->loop_id, sp->fcport->loop_id); | |
2106 | ct_iocb->status = __constant_cpu_to_le16(0); | |
2107 | ct_iocb->control_flags = __constant_cpu_to_le16(0); | |
2108 | ct_iocb->timeout = 0; | |
2109 | ct_iocb->cmd_dsd_count = | |
2110 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
2111 | ct_iocb->total_dsd_count = | |
2112 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt + 1); | |
2113 | ct_iocb->req_bytecount = | |
2114 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
2115 | ct_iocb->rsp_bytecount = | |
2116 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
2117 | ||
2118 | ct_iocb->dseg_req_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2119 | (bsg_job->request_payload.sg_list))); | |
2120 | ct_iocb->dseg_req_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2121 | (bsg_job->request_payload.sg_list))); | |
2122 | ct_iocb->dseg_req_length = ct_iocb->req_bytecount; | |
2123 | ||
2124 | ct_iocb->dseg_rsp_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2125 | (bsg_job->reply_payload.sg_list))); | |
2126 | ct_iocb->dseg_rsp_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2127 | (bsg_job->reply_payload.sg_list))); | |
2128 | ct_iocb->dseg_rsp_length = ct_iocb->rsp_bytecount; | |
2129 | ||
2130 | avail_dsds = 1; | |
2131 | cur_dsd = (uint32_t *)ct_iocb->dseg_rsp_address; | |
2132 | index = 0; | |
2133 | tot_dsds = bsg_job->reply_payload.sg_cnt; | |
2134 | ||
2135 | for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) { | |
2136 | dma_addr_t sle_dma; | |
2137 | cont_a64_entry_t *cont_pkt; | |
2138 | ||
2139 | /* Allocate additional continuation packets? */ | |
2140 | if (avail_dsds == 0) { | |
2141 | /* | |
2142 | * Five DSDs are available in the Cont. | |
2143 | * Type 1 IOCB. | |
2144 | */ | |
0d2aa38e GM |
2145 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, |
2146 | vha->hw->req_q_map[0]); | |
9bc4f4fb HZ |
2147 | cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; |
2148 | avail_dsds = 5; | |
2149 | cont_iocb_prsnt = 1; | |
2150 | entry_count++; | |
2151 | } | |
2152 | ||
2153 | sle_dma = sg_dma_address(sg); | |
2154 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
2155 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
2156 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
2157 | loop_iterartion++; | |
2158 | avail_dsds--; | |
2159 | } | |
2160 | ct_iocb->entry_count = entry_count; | |
2161 | } | |
2162 | ||
9a069e19 GM |
2163 | static void |
2164 | qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb) | |
2165 | { | |
2166 | uint16_t avail_dsds; | |
2167 | uint32_t *cur_dsd; | |
2168 | struct scatterlist *sg; | |
2169 | int index; | |
2170 | uint16_t tot_dsds; | |
2171 | scsi_qla_host_t *vha = sp->fcport->vha; | |
0d2aa38e | 2172 | struct qla_hw_data *ha = vha->hw; |
9ba56b95 | 2173 | struct fc_bsg_job *bsg_job = sp->u.bsg_job; |
9a069e19 GM |
2174 | int loop_iterartion = 0; |
2175 | int cont_iocb_prsnt = 0; | |
2176 | int entry_count = 1; | |
2177 | ||
2178 | ct_iocb->entry_type = CT_IOCB_TYPE; | |
2179 | ct_iocb->entry_status = 0; | |
2180 | ct_iocb->sys_define = 0; | |
2181 | ct_iocb->handle = sp->handle; | |
2182 | ||
2183 | ct_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
c6d39e23 | 2184 | ct_iocb->vp_index = sp->fcport->vha->vp_idx; |
9a069e19 GM |
2185 | ct_iocb->comp_status = __constant_cpu_to_le16(0); |
2186 | ||
2187 | ct_iocb->cmd_dsd_count = | |
2188 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
2189 | ct_iocb->timeout = 0; | |
2190 | ct_iocb->rsp_dsd_count = | |
2191 | __constant_cpu_to_le16(bsg_job->reply_payload.sg_cnt); | |
2192 | ct_iocb->rsp_byte_count = | |
2193 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
2194 | ct_iocb->cmd_byte_count = | |
2195 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
2196 | ct_iocb->dseg_0_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2197 | (bsg_job->request_payload.sg_list))); | |
2198 | ct_iocb->dseg_0_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2199 | (bsg_job->request_payload.sg_list))); | |
2200 | ct_iocb->dseg_0_len = cpu_to_le32(sg_dma_len | |
2201 | (bsg_job->request_payload.sg_list)); | |
2202 | ||
2203 | avail_dsds = 1; | |
2204 | cur_dsd = (uint32_t *)ct_iocb->dseg_1_address; | |
2205 | index = 0; | |
2206 | tot_dsds = bsg_job->reply_payload.sg_cnt; | |
2207 | ||
2208 | for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) { | |
2209 | dma_addr_t sle_dma; | |
2210 | cont_a64_entry_t *cont_pkt; | |
2211 | ||
2212 | /* Allocate additional continuation packets? */ | |
2213 | if (avail_dsds == 0) { | |
2214 | /* | |
2215 | * Five DSDs are available in the Cont. | |
2216 | * Type 1 IOCB. | |
2217 | */ | |
0d2aa38e GM |
2218 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, |
2219 | ha->req_q_map[0]); | |
9a069e19 GM |
2220 | cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; |
2221 | avail_dsds = 5; | |
2222 | cont_iocb_prsnt = 1; | |
2223 | entry_count++; | |
2224 | } | |
2225 | ||
2226 | sle_dma = sg_dma_address(sg); | |
2227 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
2228 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
2229 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
2230 | loop_iterartion++; | |
2231 | avail_dsds--; | |
2232 | } | |
2233 | ct_iocb->entry_count = entry_count; | |
2234 | } | |
2235 | ||
5162cf0c GM |
2236 | /* |
2237 | * qla82xx_start_scsi() - Send a SCSI command to the ISP | |
2238 | * @sp: command to send to the ISP | |
2239 | * | |
2240 | * Returns non-zero if a failure occurred, else zero. | |
2241 | */ | |
2242 | int | |
2243 | qla82xx_start_scsi(srb_t *sp) | |
2244 | { | |
2245 | int ret, nseg; | |
2246 | unsigned long flags; | |
2247 | struct scsi_cmnd *cmd; | |
2248 | uint32_t *clr_ptr; | |
2249 | uint32_t index; | |
2250 | uint32_t handle; | |
2251 | uint16_t cnt; | |
2252 | uint16_t req_cnt; | |
2253 | uint16_t tot_dsds; | |
2254 | struct device_reg_82xx __iomem *reg; | |
2255 | uint32_t dbval; | |
2256 | uint32_t *fcp_dl; | |
2257 | uint8_t additional_cdb_len; | |
2258 | struct ct6_dsd *ctx; | |
2259 | struct scsi_qla_host *vha = sp->fcport->vha; | |
2260 | struct qla_hw_data *ha = vha->hw; | |
2261 | struct req_que *req = NULL; | |
2262 | struct rsp_que *rsp = NULL; | |
9ba56b95 | 2263 | char tag[2]; |
5162cf0c GM |
2264 | |
2265 | /* Setup device pointers. */ | |
2266 | ret = 0; | |
2267 | reg = &ha->iobase->isp82; | |
9ba56b95 | 2268 | cmd = GET_CMD_SP(sp); |
5162cf0c GM |
2269 | req = vha->req; |
2270 | rsp = ha->rsp_q_map[0]; | |
2271 | ||
2272 | /* So we know we haven't pci_map'ed anything yet */ | |
2273 | tot_dsds = 0; | |
2274 | ||
2275 | dbval = 0x04 | (ha->portnum << 5); | |
2276 | ||
2277 | /* Send marker if required */ | |
2278 | if (vha->marker_needed != 0) { | |
2279 | if (qla2x00_marker(vha, req, | |
2280 | rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) { | |
2281 | ql_log(ql_log_warn, vha, 0x300c, | |
2282 | "qla2x00_marker failed for cmd=%p.\n", cmd); | |
2283 | return QLA_FUNCTION_FAILED; | |
2284 | } | |
2285 | vha->marker_needed = 0; | |
2286 | } | |
2287 | ||
2288 | /* Acquire ring specific lock */ | |
2289 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
2290 | ||
2291 | /* Check for room in outstanding command list. */ | |
2292 | handle = req->current_outstanding_cmd; | |
2293 | for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { | |
2294 | handle++; | |
2295 | if (handle == MAX_OUTSTANDING_COMMANDS) | |
2296 | handle = 1; | |
2297 | if (!req->outstanding_cmds[handle]) | |
2298 | break; | |
2299 | } | |
2300 | if (index == MAX_OUTSTANDING_COMMANDS) | |
2301 | goto queuing_error; | |
2302 | ||
2303 | /* Map the sg table so we have an accurate count of sg entries needed */ | |
2304 | if (scsi_sg_count(cmd)) { | |
2305 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
2306 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
2307 | if (unlikely(!nseg)) | |
2308 | goto queuing_error; | |
2309 | } else | |
2310 | nseg = 0; | |
2311 | ||
2312 | tot_dsds = nseg; | |
2313 | ||
2314 | if (tot_dsds > ql2xshiftctondsd) { | |
2315 | struct cmd_type_6 *cmd_pkt; | |
2316 | uint16_t more_dsd_lists = 0; | |
2317 | struct dsd_dma *dsd_ptr; | |
2318 | uint16_t i; | |
2319 | ||
2320 | more_dsd_lists = qla24xx_calc_dsd_lists(tot_dsds); | |
2321 | if ((more_dsd_lists + ha->gbl_dsd_inuse) >= NUM_DSD_CHAIN) { | |
2322 | ql_dbg(ql_dbg_io, vha, 0x300d, | |
2323 | "Num of DSD list %d is than %d for cmd=%p.\n", | |
2324 | more_dsd_lists + ha->gbl_dsd_inuse, NUM_DSD_CHAIN, | |
2325 | cmd); | |
2326 | goto queuing_error; | |
2327 | } | |
2328 | ||
2329 | if (more_dsd_lists <= ha->gbl_dsd_avail) | |
2330 | goto sufficient_dsds; | |
2331 | else | |
2332 | more_dsd_lists -= ha->gbl_dsd_avail; | |
2333 | ||
2334 | for (i = 0; i < more_dsd_lists; i++) { | |
2335 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
2336 | if (!dsd_ptr) { | |
2337 | ql_log(ql_log_fatal, vha, 0x300e, | |
2338 | "Failed to allocate memory for dsd_dma " | |
2339 | "for cmd=%p.\n", cmd); | |
2340 | goto queuing_error; | |
2341 | } | |
2342 | ||
2343 | dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool, | |
2344 | GFP_ATOMIC, &dsd_ptr->dsd_list_dma); | |
2345 | if (!dsd_ptr->dsd_addr) { | |
2346 | kfree(dsd_ptr); | |
2347 | ql_log(ql_log_fatal, vha, 0x300f, | |
2348 | "Failed to allocate memory for dsd_addr " | |
2349 | "for cmd=%p.\n", cmd); | |
2350 | goto queuing_error; | |
2351 | } | |
2352 | list_add_tail(&dsd_ptr->list, &ha->gbl_dsd_list); | |
2353 | ha->gbl_dsd_avail++; | |
2354 | } | |
2355 | ||
2356 | sufficient_dsds: | |
2357 | req_cnt = 1; | |
2358 | ||
2359 | if (req->cnt < (req_cnt + 2)) { | |
2360 | cnt = (uint16_t)RD_REG_DWORD_RELAXED( | |
2361 | ®->req_q_out[0]); | |
2362 | if (req->ring_index < cnt) | |
2363 | req->cnt = cnt - req->ring_index; | |
2364 | else | |
2365 | req->cnt = req->length - | |
2366 | (req->ring_index - cnt); | |
a6eb3c9f CL |
2367 | if (req->cnt < (req_cnt + 2)) |
2368 | goto queuing_error; | |
5162cf0c GM |
2369 | } |
2370 | ||
9ba56b95 GM |
2371 | ctx = sp->u.scmd.ctx = |
2372 | mempool_alloc(ha->ctx_mempool, GFP_ATOMIC); | |
2373 | if (!ctx) { | |
5162cf0c GM |
2374 | ql_log(ql_log_fatal, vha, 0x3010, |
2375 | "Failed to allocate ctx for cmd=%p.\n", cmd); | |
2376 | goto queuing_error; | |
2377 | } | |
9ba56b95 | 2378 | |
5162cf0c GM |
2379 | memset(ctx, 0, sizeof(struct ct6_dsd)); |
2380 | ctx->fcp_cmnd = dma_pool_alloc(ha->fcp_cmnd_dma_pool, | |
2381 | GFP_ATOMIC, &ctx->fcp_cmnd_dma); | |
2382 | if (!ctx->fcp_cmnd) { | |
2383 | ql_log(ql_log_fatal, vha, 0x3011, | |
2384 | "Failed to allocate fcp_cmnd for cmd=%p.\n", cmd); | |
841f97bf | 2385 | goto queuing_error; |
5162cf0c GM |
2386 | } |
2387 | ||
2388 | /* Initialize the DSD list and dma handle */ | |
2389 | INIT_LIST_HEAD(&ctx->dsd_list); | |
2390 | ctx->dsd_use_cnt = 0; | |
2391 | ||
2392 | if (cmd->cmd_len > 16) { | |
2393 | additional_cdb_len = cmd->cmd_len - 16; | |
2394 | if ((cmd->cmd_len % 4) != 0) { | |
2395 | /* SCSI command bigger than 16 bytes must be | |
2396 | * multiple of 4 | |
2397 | */ | |
2398 | ql_log(ql_log_warn, vha, 0x3012, | |
2399 | "scsi cmd len %d not multiple of 4 " | |
2400 | "for cmd=%p.\n", cmd->cmd_len, cmd); | |
2401 | goto queuing_error_fcp_cmnd; | |
2402 | } | |
2403 | ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4; | |
2404 | } else { | |
2405 | additional_cdb_len = 0; | |
2406 | ctx->fcp_cmnd_len = 12 + 16 + 4; | |
2407 | } | |
2408 | ||
2409 | cmd_pkt = (struct cmd_type_6 *)req->ring_ptr; | |
2410 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); | |
2411 | ||
2412 | /* Zero out remaining portion of packet. */ | |
2413 | /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ | |
2414 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
2415 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
2416 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
2417 | ||
2418 | /* Set NPORT-ID and LUN number*/ | |
2419 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
2420 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
2421 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
2422 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
c6d39e23 | 2423 | cmd_pkt->vp_index = sp->fcport->vha->vp_idx; |
5162cf0c GM |
2424 | |
2425 | /* Build IOCB segments */ | |
2426 | if (qla24xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds)) | |
2427 | goto queuing_error_fcp_cmnd; | |
2428 | ||
9ba56b95 | 2429 | int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); |
5162cf0c GM |
2430 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); |
2431 | ||
2432 | /* build FCP_CMND IU */ | |
2433 | memset(ctx->fcp_cmnd, 0, sizeof(struct fcp_cmnd)); | |
9ba56b95 | 2434 | int_to_scsilun(cmd->device->lun, &ctx->fcp_cmnd->lun); |
5162cf0c GM |
2435 | ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len; |
2436 | ||
2437 | if (cmd->sc_data_direction == DMA_TO_DEVICE) | |
2438 | ctx->fcp_cmnd->additional_cdb_len |= 1; | |
2439 | else if (cmd->sc_data_direction == DMA_FROM_DEVICE) | |
2440 | ctx->fcp_cmnd->additional_cdb_len |= 2; | |
2441 | ||
2442 | /* | |
2443 | * Update tagged queuing modifier -- default is TSK_SIMPLE (0). | |
2444 | */ | |
2445 | if (scsi_populate_tag_msg(cmd, tag)) { | |
2446 | switch (tag[0]) { | |
2447 | case HEAD_OF_QUEUE_TAG: | |
2448 | ctx->fcp_cmnd->task_attribute = | |
2449 | TSK_HEAD_OF_QUEUE; | |
2450 | break; | |
2451 | case ORDERED_QUEUE_TAG: | |
2452 | ctx->fcp_cmnd->task_attribute = | |
2453 | TSK_ORDERED; | |
2454 | break; | |
2455 | } | |
2456 | } | |
2457 | ||
a00f6296 SK |
2458 | /* Populate the FCP_PRIO. */ |
2459 | if (ha->flags.fcp_prio_enabled) | |
2460 | ctx->fcp_cmnd->task_attribute |= | |
2461 | sp->fcport->fcp_prio << 3; | |
2462 | ||
5162cf0c GM |
2463 | memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); |
2464 | ||
2465 | fcp_dl = (uint32_t *)(ctx->fcp_cmnd->cdb + 16 + | |
2466 | additional_cdb_len); | |
2467 | *fcp_dl = htonl((uint32_t)scsi_bufflen(cmd)); | |
2468 | ||
2469 | cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len); | |
2470 | cmd_pkt->fcp_cmnd_dseg_address[0] = | |
2471 | cpu_to_le32(LSD(ctx->fcp_cmnd_dma)); | |
2472 | cmd_pkt->fcp_cmnd_dseg_address[1] = | |
2473 | cpu_to_le32(MSD(ctx->fcp_cmnd_dma)); | |
2474 | ||
2475 | sp->flags |= SRB_FCP_CMND_DMA_VALID; | |
2476 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); | |
2477 | /* Set total data segment count. */ | |
2478 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
2479 | /* Specify response queue number where | |
2480 | * completion should happen | |
2481 | */ | |
2482 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
2483 | } else { | |
2484 | struct cmd_type_7 *cmd_pkt; | |
2485 | req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); | |
2486 | if (req->cnt < (req_cnt + 2)) { | |
2487 | cnt = (uint16_t)RD_REG_DWORD_RELAXED( | |
2488 | ®->req_q_out[0]); | |
2489 | if (req->ring_index < cnt) | |
2490 | req->cnt = cnt - req->ring_index; | |
2491 | else | |
2492 | req->cnt = req->length - | |
2493 | (req->ring_index - cnt); | |
2494 | } | |
2495 | if (req->cnt < (req_cnt + 2)) | |
2496 | goto queuing_error; | |
2497 | ||
2498 | cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; | |
2499 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); | |
2500 | ||
2501 | /* Zero out remaining portion of packet. */ | |
2502 | /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/ | |
2503 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
2504 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
2505 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
2506 | ||
2507 | /* Set NPORT-ID and LUN number*/ | |
2508 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
2509 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
2510 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
2511 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
c6d39e23 | 2512 | cmd_pkt->vp_index = sp->fcport->vha->vp_idx; |
5162cf0c | 2513 | |
9ba56b95 | 2514 | int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); |
5162cf0c | 2515 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, |
9ba56b95 | 2516 | sizeof(cmd_pkt->lun)); |
5162cf0c GM |
2517 | |
2518 | /* | |
2519 | * Update tagged queuing modifier -- default is TSK_SIMPLE (0). | |
2520 | */ | |
2521 | if (scsi_populate_tag_msg(cmd, tag)) { | |
2522 | switch (tag[0]) { | |
2523 | case HEAD_OF_QUEUE_TAG: | |
2524 | cmd_pkt->task = TSK_HEAD_OF_QUEUE; | |
2525 | break; | |
2526 | case ORDERED_QUEUE_TAG: | |
2527 | cmd_pkt->task = TSK_ORDERED; | |
2528 | break; | |
2529 | } | |
2530 | } | |
2531 | ||
a00f6296 SK |
2532 | /* Populate the FCP_PRIO. */ |
2533 | if (ha->flags.fcp_prio_enabled) | |
2534 | cmd_pkt->task |= sp->fcport->fcp_prio << 3; | |
2535 | ||
5162cf0c GM |
2536 | /* Load SCSI command packet. */ |
2537 | memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); | |
2538 | host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); | |
2539 | ||
2540 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); | |
2541 | ||
2542 | /* Build IOCB segments */ | |
2543 | qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds); | |
2544 | ||
2545 | /* Set total data segment count. */ | |
2546 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
2547 | /* Specify response queue number where | |
2548 | * completion should happen. | |
2549 | */ | |
2550 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
2551 | ||
2552 | } | |
2553 | /* Build command packet. */ | |
2554 | req->current_outstanding_cmd = handle; | |
2555 | req->outstanding_cmds[handle] = sp; | |
2556 | sp->handle = handle; | |
9ba56b95 | 2557 | cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
5162cf0c GM |
2558 | req->cnt -= req_cnt; |
2559 | wmb(); | |
2560 | ||
2561 | /* Adjust ring index. */ | |
2562 | req->ring_index++; | |
2563 | if (req->ring_index == req->length) { | |
2564 | req->ring_index = 0; | |
2565 | req->ring_ptr = req->ring; | |
2566 | } else | |
2567 | req->ring_ptr++; | |
2568 | ||
2569 | sp->flags |= SRB_DMA_VALID; | |
2570 | ||
2571 | /* Set chip new ring index. */ | |
2572 | /* write, read and verify logic */ | |
2573 | dbval = dbval | (req->id << 8) | (req->ring_index << 16); | |
2574 | if (ql2xdbwr) | |
2575 | qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval); | |
2576 | else { | |
2577 | WRT_REG_DWORD( | |
2578 | (unsigned long __iomem *)ha->nxdb_wr_ptr, | |
2579 | dbval); | |
2580 | wmb(); | |
2581 | while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) { | |
2582 | WRT_REG_DWORD( | |
2583 | (unsigned long __iomem *)ha->nxdb_wr_ptr, | |
2584 | dbval); | |
2585 | wmb(); | |
2586 | } | |
2587 | } | |
2588 | ||
2589 | /* Manage unprocessed RIO/ZIO commands in response queue. */ | |
2590 | if (vha->flags.process_response_queue && | |
2591 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) | |
2592 | qla24xx_process_response_queue(vha, rsp); | |
2593 | ||
2594 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2595 | return QLA_SUCCESS; | |
2596 | ||
2597 | queuing_error_fcp_cmnd: | |
2598 | dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma); | |
2599 | queuing_error: | |
2600 | if (tot_dsds) | |
2601 | scsi_dma_unmap(cmd); | |
2602 | ||
9ba56b95 GM |
2603 | if (sp->u.scmd.ctx) { |
2604 | mempool_free(sp->u.scmd.ctx, ha->ctx_mempool); | |
2605 | sp->u.scmd.ctx = NULL; | |
5162cf0c GM |
2606 | } |
2607 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2608 | ||
2609 | return QLA_FUNCTION_FAILED; | |
2610 | } | |
2611 | ||
ac280b67 AV |
2612 | int |
2613 | qla2x00_start_sp(srb_t *sp) | |
2614 | { | |
2615 | int rval; | |
2616 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
2617 | void *pkt; | |
ac280b67 AV |
2618 | unsigned long flags; |
2619 | ||
2620 | rval = QLA_FUNCTION_FAILED; | |
2621 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
d94d10e7 | 2622 | pkt = qla2x00_alloc_iocbs(sp->fcport->vha, sp); |
7c3df132 SK |
2623 | if (!pkt) { |
2624 | ql_log(ql_log_warn, sp->fcport->vha, 0x700c, | |
2625 | "qla2x00_alloc_iocbs failed.\n"); | |
ac280b67 | 2626 | goto done; |
7c3df132 | 2627 | } |
ac280b67 AV |
2628 | |
2629 | rval = QLA_SUCCESS; | |
9ba56b95 | 2630 | switch (sp->type) { |
ac280b67 AV |
2631 | case SRB_LOGIN_CMD: |
2632 | IS_FWI2_CAPABLE(ha) ? | |
5ff1d584 | 2633 | qla24xx_login_iocb(sp, pkt) : |
ac280b67 AV |
2634 | qla2x00_login_iocb(sp, pkt); |
2635 | break; | |
2636 | case SRB_LOGOUT_CMD: | |
2637 | IS_FWI2_CAPABLE(ha) ? | |
5ff1d584 | 2638 | qla24xx_logout_iocb(sp, pkt) : |
ac280b67 AV |
2639 | qla2x00_logout_iocb(sp, pkt); |
2640 | break; | |
9a069e19 GM |
2641 | case SRB_ELS_CMD_RPT: |
2642 | case SRB_ELS_CMD_HST: | |
2643 | qla24xx_els_iocb(sp, pkt); | |
2644 | break; | |
2645 | case SRB_CT_CMD: | |
9bc4f4fb | 2646 | IS_FWI2_CAPABLE(ha) ? |
5780790e AV |
2647 | qla24xx_ct_iocb(sp, pkt) : |
2648 | qla2x00_ct_iocb(sp, pkt); | |
9a069e19 | 2649 | break; |
5ff1d584 AV |
2650 | case SRB_ADISC_CMD: |
2651 | IS_FWI2_CAPABLE(ha) ? | |
2652 | qla24xx_adisc_iocb(sp, pkt) : | |
2653 | qla2x00_adisc_iocb(sp, pkt); | |
2654 | break; | |
3822263e MI |
2655 | case SRB_TM_CMD: |
2656 | qla24xx_tm_iocb(sp, pkt); | |
2657 | break; | |
ac280b67 AV |
2658 | default: |
2659 | break; | |
2660 | } | |
2661 | ||
2662 | wmb(); | |
5162cf0c | 2663 | qla2x00_start_iocbs(sp->fcport->vha, ha->req_q_map[0]); |
ac280b67 AV |
2664 | done: |
2665 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2666 | return rval; | |
2667 | } |