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Commit | Line | Data |
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fa90c54f AV |
1 | /* |
2 | * QLogic Fibre Channel HBA Driver | |
de7c5d05 | 3 | * Copyright (c) 2003-2010 QLogic Corporation |
1da177e4 | 4 | * |
fa90c54f AV |
5 | * See LICENSE.qla2xxx for copyright and licensing details. |
6 | */ | |
1da177e4 LT |
7 | #include "qla_def.h" |
8 | ||
9 | #include <linux/blkdev.h> | |
10 | #include <linux/delay.h> | |
11 | ||
12 | #include <scsi/scsi_tcq.h> | |
13 | ||
73208dfd | 14 | static void qla2x00_isp_cmd(struct scsi_qla_host *, struct req_que *); |
1da177e4 | 15 | |
59e0b8b0 | 16 | static void qla25xx_set_que(srb_t *, struct rsp_que **); |
1da177e4 LT |
17 | /** |
18 | * qla2x00_get_cmd_direction() - Determine control_flag data direction. | |
19 | * @cmd: SCSI command | |
20 | * | |
21 | * Returns the proper CF_* direction based on CDB. | |
22 | */ | |
23 | static inline uint16_t | |
49fd462a | 24 | qla2x00_get_cmd_direction(srb_t *sp) |
1da177e4 LT |
25 | { |
26 | uint16_t cflags; | |
27 | ||
28 | cflags = 0; | |
29 | ||
30 | /* Set transfer direction */ | |
49fd462a | 31 | if (sp->cmd->sc_data_direction == DMA_TO_DEVICE) { |
1da177e4 | 32 | cflags = CF_WRITE; |
e315cd28 | 33 | sp->fcport->vha->hw->qla_stats.output_bytes += |
49fd462a HZ |
34 | scsi_bufflen(sp->cmd); |
35 | } else if (sp->cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
1da177e4 | 36 | cflags = CF_READ; |
e315cd28 | 37 | sp->fcport->vha->hw->qla_stats.input_bytes += |
49fd462a HZ |
38 | scsi_bufflen(sp->cmd); |
39 | } | |
1da177e4 LT |
40 | return (cflags); |
41 | } | |
42 | ||
43 | /** | |
44 | * qla2x00_calc_iocbs_32() - Determine number of Command Type 2 and | |
45 | * Continuation Type 0 IOCBs to allocate. | |
46 | * | |
47 | * @dsds: number of data segment decriptors needed | |
48 | * | |
49 | * Returns the number of IOCB entries needed to store @dsds. | |
50 | */ | |
51 | uint16_t | |
52 | qla2x00_calc_iocbs_32(uint16_t dsds) | |
53 | { | |
54 | uint16_t iocbs; | |
55 | ||
56 | iocbs = 1; | |
57 | if (dsds > 3) { | |
58 | iocbs += (dsds - 3) / 7; | |
59 | if ((dsds - 3) % 7) | |
60 | iocbs++; | |
61 | } | |
62 | return (iocbs); | |
63 | } | |
64 | ||
65 | /** | |
66 | * qla2x00_calc_iocbs_64() - Determine number of Command Type 3 and | |
67 | * Continuation Type 1 IOCBs to allocate. | |
68 | * | |
69 | * @dsds: number of data segment decriptors needed | |
70 | * | |
71 | * Returns the number of IOCB entries needed to store @dsds. | |
72 | */ | |
73 | uint16_t | |
74 | qla2x00_calc_iocbs_64(uint16_t dsds) | |
75 | { | |
76 | uint16_t iocbs; | |
77 | ||
78 | iocbs = 1; | |
79 | if (dsds > 2) { | |
80 | iocbs += (dsds - 2) / 5; | |
81 | if ((dsds - 2) % 5) | |
82 | iocbs++; | |
83 | } | |
84 | return (iocbs); | |
85 | } | |
86 | ||
87 | /** | |
88 | * qla2x00_prep_cont_type0_iocb() - Initialize a Continuation Type 0 IOCB. | |
89 | * @ha: HA context | |
90 | * | |
91 | * Returns a pointer to the Continuation Type 0 IOCB packet. | |
92 | */ | |
93 | static inline cont_entry_t * | |
67c2e93a | 94 | qla2x00_prep_cont_type0_iocb(struct scsi_qla_host *vha) |
1da177e4 LT |
95 | { |
96 | cont_entry_t *cont_pkt; | |
67c2e93a | 97 | struct req_que *req = vha->req; |
1da177e4 | 98 | /* Adjust ring index. */ |
e315cd28 AC |
99 | req->ring_index++; |
100 | if (req->ring_index == req->length) { | |
101 | req->ring_index = 0; | |
102 | req->ring_ptr = req->ring; | |
1da177e4 | 103 | } else { |
e315cd28 | 104 | req->ring_ptr++; |
1da177e4 LT |
105 | } |
106 | ||
e315cd28 | 107 | cont_pkt = (cont_entry_t *)req->ring_ptr; |
1da177e4 LT |
108 | |
109 | /* Load packet defaults. */ | |
110 | *((uint32_t *)(&cont_pkt->entry_type)) = | |
111 | __constant_cpu_to_le32(CONTINUE_TYPE); | |
112 | ||
113 | return (cont_pkt); | |
114 | } | |
115 | ||
116 | /** | |
117 | * qla2x00_prep_cont_type1_iocb() - Initialize a Continuation Type 1 IOCB. | |
118 | * @ha: HA context | |
119 | * | |
120 | * Returns a pointer to the continuation type 1 IOCB packet. | |
121 | */ | |
122 | static inline cont_a64_entry_t * | |
67c2e93a | 123 | qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *vha) |
1da177e4 LT |
124 | { |
125 | cont_a64_entry_t *cont_pkt; | |
126 | ||
67c2e93a | 127 | struct req_que *req = vha->req; |
1da177e4 | 128 | /* Adjust ring index. */ |
e315cd28 AC |
129 | req->ring_index++; |
130 | if (req->ring_index == req->length) { | |
131 | req->ring_index = 0; | |
132 | req->ring_ptr = req->ring; | |
1da177e4 | 133 | } else { |
e315cd28 | 134 | req->ring_ptr++; |
1da177e4 LT |
135 | } |
136 | ||
e315cd28 | 137 | cont_pkt = (cont_a64_entry_t *)req->ring_ptr; |
1da177e4 LT |
138 | |
139 | /* Load packet defaults. */ | |
140 | *((uint32_t *)(&cont_pkt->entry_type)) = | |
141 | __constant_cpu_to_le32(CONTINUE_A64_TYPE); | |
142 | ||
143 | return (cont_pkt); | |
144 | } | |
145 | ||
bad75002 AE |
146 | static inline int |
147 | qla24xx_configure_prot_mode(srb_t *sp, uint16_t *fw_prot_opts) | |
148 | { | |
149 | uint8_t guard = scsi_host_get_guard(sp->cmd->device->host); | |
150 | ||
151 | /* We only support T10 DIF right now */ | |
152 | if (guard != SHOST_DIX_GUARD_CRC) { | |
153 | DEBUG2(printk(KERN_ERR "Unsupported guard: %d\n", guard)); | |
154 | return 0; | |
155 | } | |
156 | ||
157 | /* We always use DIFF Bundling for best performance */ | |
158 | *fw_prot_opts = 0; | |
159 | ||
160 | /* Translate SCSI opcode to a protection opcode */ | |
161 | switch (scsi_get_prot_op(sp->cmd)) { | |
162 | case SCSI_PROT_READ_STRIP: | |
163 | *fw_prot_opts |= PO_MODE_DIF_REMOVE; | |
164 | break; | |
165 | case SCSI_PROT_WRITE_INSERT: | |
166 | *fw_prot_opts |= PO_MODE_DIF_INSERT; | |
167 | break; | |
168 | case SCSI_PROT_READ_INSERT: | |
169 | *fw_prot_opts |= PO_MODE_DIF_INSERT; | |
170 | break; | |
171 | case SCSI_PROT_WRITE_STRIP: | |
172 | *fw_prot_opts |= PO_MODE_DIF_REMOVE; | |
173 | break; | |
174 | case SCSI_PROT_READ_PASS: | |
175 | *fw_prot_opts |= PO_MODE_DIF_PASS; | |
176 | break; | |
177 | case SCSI_PROT_WRITE_PASS: | |
178 | *fw_prot_opts |= PO_MODE_DIF_PASS; | |
179 | break; | |
180 | default: /* Normal Request */ | |
181 | *fw_prot_opts |= PO_MODE_DIF_PASS; | |
182 | break; | |
183 | } | |
184 | ||
185 | return scsi_prot_sg_count(sp->cmd); | |
186 | } | |
187 | ||
188 | /* | |
1da177e4 LT |
189 | * qla2x00_build_scsi_iocbs_32() - Build IOCB command utilizing 32bit |
190 | * capable IOCB types. | |
191 | * | |
192 | * @sp: SRB command to process | |
193 | * @cmd_pkt: Command type 2 IOCB | |
194 | * @tot_dsds: Total number of segments to transfer | |
195 | */ | |
196 | void qla2x00_build_scsi_iocbs_32(srb_t *sp, cmd_entry_t *cmd_pkt, | |
197 | uint16_t tot_dsds) | |
198 | { | |
199 | uint16_t avail_dsds; | |
200 | uint32_t *cur_dsd; | |
e315cd28 | 201 | scsi_qla_host_t *vha; |
1da177e4 | 202 | struct scsi_cmnd *cmd; |
385d70b4 FT |
203 | struct scatterlist *sg; |
204 | int i; | |
1da177e4 LT |
205 | |
206 | cmd = sp->cmd; | |
207 | ||
208 | /* Update entry type to indicate Command Type 2 IOCB */ | |
209 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
210 | __constant_cpu_to_le32(COMMAND_TYPE); | |
211 | ||
212 | /* No data transfer */ | |
385d70b4 | 213 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { |
1da177e4 LT |
214 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
215 | return; | |
216 | } | |
217 | ||
444786d7 | 218 | vha = sp->fcport->vha; |
49fd462a | 219 | cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); |
1da177e4 LT |
220 | |
221 | /* Three DSDs are available in the Command Type 2 IOCB */ | |
222 | avail_dsds = 3; | |
223 | cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address; | |
224 | ||
225 | /* Load data segments */ | |
385d70b4 FT |
226 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { |
227 | cont_entry_t *cont_pkt; | |
228 | ||
229 | /* Allocate additional continuation packets? */ | |
230 | if (avail_dsds == 0) { | |
231 | /* | |
232 | * Seven DSDs are available in the Continuation | |
233 | * Type 0 IOCB. | |
234 | */ | |
67c2e93a | 235 | cont_pkt = qla2x00_prep_cont_type0_iocb(vha); |
385d70b4 FT |
236 | cur_dsd = (uint32_t *)&cont_pkt->dseg_0_address; |
237 | avail_dsds = 7; | |
1da177e4 | 238 | } |
385d70b4 FT |
239 | |
240 | *cur_dsd++ = cpu_to_le32(sg_dma_address(sg)); | |
241 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
242 | avail_dsds--; | |
1da177e4 LT |
243 | } |
244 | } | |
245 | ||
246 | /** | |
247 | * qla2x00_build_scsi_iocbs_64() - Build IOCB command utilizing 64bit | |
248 | * capable IOCB types. | |
249 | * | |
250 | * @sp: SRB command to process | |
251 | * @cmd_pkt: Command type 3 IOCB | |
252 | * @tot_dsds: Total number of segments to transfer | |
253 | */ | |
254 | void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt, | |
255 | uint16_t tot_dsds) | |
256 | { | |
257 | uint16_t avail_dsds; | |
258 | uint32_t *cur_dsd; | |
e315cd28 | 259 | scsi_qla_host_t *vha; |
1da177e4 | 260 | struct scsi_cmnd *cmd; |
385d70b4 FT |
261 | struct scatterlist *sg; |
262 | int i; | |
1da177e4 LT |
263 | |
264 | cmd = sp->cmd; | |
265 | ||
266 | /* Update entry type to indicate Command Type 3 IOCB */ | |
267 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
268 | __constant_cpu_to_le32(COMMAND_A64_TYPE); | |
269 | ||
270 | /* No data transfer */ | |
385d70b4 | 271 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { |
1da177e4 LT |
272 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
273 | return; | |
274 | } | |
275 | ||
444786d7 | 276 | vha = sp->fcport->vha; |
49fd462a | 277 | cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); |
1da177e4 LT |
278 | |
279 | /* Two DSDs are available in the Command Type 3 IOCB */ | |
280 | avail_dsds = 2; | |
281 | cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address; | |
282 | ||
283 | /* Load data segments */ | |
385d70b4 FT |
284 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { |
285 | dma_addr_t sle_dma; | |
286 | cont_a64_entry_t *cont_pkt; | |
287 | ||
288 | /* Allocate additional continuation packets? */ | |
289 | if (avail_dsds == 0) { | |
290 | /* | |
291 | * Five DSDs are available in the Continuation | |
292 | * Type 1 IOCB. | |
293 | */ | |
67c2e93a | 294 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha); |
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; |
1da177e4 LT |
331 | |
332 | /* Setup device pointers. */ | |
333 | ret = 0; | |
444786d7 | 334 | vha = sp->fcport->vha; |
e315cd28 | 335 | ha = vha->hw; |
3d71644c | 336 | reg = &ha->iobase->isp; |
1da177e4 | 337 | cmd = sp->cmd; |
73208dfd AC |
338 | req = ha->req_q_map[0]; |
339 | rsp = ha->rsp_q_map[0]; | |
83021920 AV |
340 | /* So we know we haven't pci_map'ed anything yet */ |
341 | tot_dsds = 0; | |
1da177e4 LT |
342 | |
343 | /* Send marker if required */ | |
e315cd28 | 344 | if (vha->marker_needed != 0) { |
73208dfd AC |
345 | if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) |
346 | != QLA_SUCCESS) | |
1da177e4 | 347 | return (QLA_FUNCTION_FAILED); |
e315cd28 | 348 | vha->marker_needed = 0; |
1da177e4 LT |
349 | } |
350 | ||
351 | /* Acquire ring specific lock */ | |
c9c5ced9 | 352 | spin_lock_irqsave(&ha->hardware_lock, flags); |
1da177e4 LT |
353 | |
354 | /* Check for room in outstanding command list. */ | |
e315cd28 | 355 | handle = req->current_outstanding_cmd; |
1da177e4 LT |
356 | for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { |
357 | handle++; | |
358 | if (handle == MAX_OUTSTANDING_COMMANDS) | |
359 | handle = 1; | |
e315cd28 | 360 | if (!req->outstanding_cmds[handle]) |
1da177e4 LT |
361 | break; |
362 | } | |
363 | if (index == MAX_OUTSTANDING_COMMANDS) | |
364 | goto queuing_error; | |
365 | ||
83021920 | 366 | /* Map the sg table so we have an accurate count of sg entries needed */ |
2c3dfe3f SJ |
367 | if (scsi_sg_count(cmd)) { |
368 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
369 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
370 | if (unlikely(!nseg)) | |
371 | goto queuing_error; | |
372 | } else | |
373 | nseg = 0; | |
374 | ||
385d70b4 | 375 | tot_dsds = nseg; |
83021920 | 376 | |
1da177e4 | 377 | /* Calculate the number of request entries needed. */ |
fd34f556 | 378 | req_cnt = ha->isp_ops->calc_req_entries(tot_dsds); |
e315cd28 | 379 | if (req->cnt < (req_cnt + 2)) { |
1da177e4 | 380 | cnt = RD_REG_WORD_RELAXED(ISP_REQ_Q_OUT(ha, reg)); |
e315cd28 AC |
381 | if (req->ring_index < cnt) |
382 | req->cnt = cnt - req->ring_index; | |
1da177e4 | 383 | else |
e315cd28 AC |
384 | req->cnt = req->length - |
385 | (req->ring_index - cnt); | |
1da177e4 | 386 | } |
e315cd28 | 387 | if (req->cnt < (req_cnt + 2)) |
1da177e4 LT |
388 | goto queuing_error; |
389 | ||
1da177e4 | 390 | /* Build command packet */ |
e315cd28 AC |
391 | req->current_outstanding_cmd = handle; |
392 | req->outstanding_cmds[handle] = sp; | |
cf53b069 | 393 | sp->handle = handle; |
1da177e4 | 394 | sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
e315cd28 | 395 | req->cnt -= req_cnt; |
1da177e4 | 396 | |
e315cd28 | 397 | cmd_pkt = (cmd_entry_t *)req->ring_ptr; |
1da177e4 LT |
398 | cmd_pkt->handle = handle; |
399 | /* Zero out remaining portion of packet. */ | |
400 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
401 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
402 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
403 | ||
bdf79621 AV |
404 | /* Set target ID and LUN number*/ |
405 | SET_TARGET_ID(ha, cmd_pkt->target, sp->fcport->loop_id); | |
406 | cmd_pkt->lun = cpu_to_le16(sp->cmd->device->lun); | |
1da177e4 LT |
407 | |
408 | /* Update tagged queuing modifier */ | |
409 | cmd_pkt->control_flags = __constant_cpu_to_le16(CF_SIMPLE_TAG); | |
1da177e4 | 410 | |
1da177e4 LT |
411 | /* Load SCSI command packet. */ |
412 | memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len); | |
385d70b4 | 413 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); |
1da177e4 LT |
414 | |
415 | /* Build IOCB segments */ | |
fd34f556 | 416 | ha->isp_ops->build_iocbs(sp, cmd_pkt, tot_dsds); |
1da177e4 LT |
417 | |
418 | /* Set total data segment count. */ | |
419 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
420 | wmb(); | |
421 | ||
422 | /* Adjust ring index. */ | |
e315cd28 AC |
423 | req->ring_index++; |
424 | if (req->ring_index == req->length) { | |
425 | req->ring_index = 0; | |
426 | req->ring_ptr = req->ring; | |
1da177e4 | 427 | } else |
e315cd28 | 428 | req->ring_ptr++; |
1da177e4 | 429 | |
1da177e4 | 430 | sp->flags |= SRB_DMA_VALID; |
1da177e4 LT |
431 | |
432 | /* Set chip new ring index. */ | |
e315cd28 | 433 | WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), req->ring_index); |
1da177e4 LT |
434 | RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, reg)); /* PCI Posting. */ |
435 | ||
4fdfefe5 | 436 | /* Manage unprocessed RIO/ZIO commands in response queue. */ |
e315cd28 | 437 | if (vha->flags.process_response_queue && |
73208dfd AC |
438 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) |
439 | qla2x00_process_response_queue(rsp); | |
4fdfefe5 | 440 | |
c9c5ced9 | 441 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
1da177e4 LT |
442 | return (QLA_SUCCESS); |
443 | ||
444 | queuing_error: | |
385d70b4 FT |
445 | if (tot_dsds) |
446 | scsi_dma_unmap(cmd); | |
447 | ||
c9c5ced9 | 448 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
1da177e4 LT |
449 | |
450 | return (QLA_FUNCTION_FAILED); | |
451 | } | |
452 | ||
453 | /** | |
454 | * qla2x00_marker() - Send a marker IOCB to the firmware. | |
455 | * @ha: HA context | |
456 | * @loop_id: loop ID | |
457 | * @lun: LUN | |
458 | * @type: marker modifier | |
459 | * | |
460 | * Can be called from both normal and interrupt context. | |
461 | * | |
cc3ef7bc | 462 | * Returns non-zero if a failure occurred, else zero. |
1da177e4 | 463 | */ |
3dbe756a | 464 | static int |
73208dfd AC |
465 | __qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req, |
466 | struct rsp_que *rsp, uint16_t loop_id, | |
467 | uint16_t lun, uint8_t type) | |
1da177e4 | 468 | { |
2b6c0cee AV |
469 | mrk_entry_t *mrk; |
470 | struct mrk_entry_24xx *mrk24; | |
e315cd28 AC |
471 | struct qla_hw_data *ha = vha->hw; |
472 | scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); | |
1da177e4 | 473 | |
2b6c0cee | 474 | mrk24 = NULL; |
d94d10e7 | 475 | mrk = (mrk_entry_t *)qla2x00_alloc_iocbs(vha, 0); |
2b6c0cee AV |
476 | if (mrk == NULL) { |
477 | DEBUG2_3(printk("%s(%ld): failed to allocate Marker IOCB.\n", | |
e315cd28 | 478 | __func__, base_vha->host_no)); |
1da177e4 LT |
479 | |
480 | return (QLA_FUNCTION_FAILED); | |
481 | } | |
482 | ||
2b6c0cee AV |
483 | mrk->entry_type = MARKER_TYPE; |
484 | mrk->modifier = type; | |
1da177e4 | 485 | if (type != MK_SYNC_ALL) { |
e428924c | 486 | if (IS_FWI2_CAPABLE(ha)) { |
2b6c0cee AV |
487 | mrk24 = (struct mrk_entry_24xx *) mrk; |
488 | mrk24->nport_handle = cpu_to_le16(loop_id); | |
489 | mrk24->lun[1] = LSB(lun); | |
490 | mrk24->lun[2] = MSB(lun); | |
b797b6de | 491 | host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun)); |
e315cd28 | 492 | mrk24->vp_index = vha->vp_idx; |
2afa19a9 | 493 | mrk24->handle = MAKE_HANDLE(req->id, mrk24->handle); |
2b6c0cee AV |
494 | } else { |
495 | SET_TARGET_ID(ha, mrk->target, loop_id); | |
496 | mrk->lun = cpu_to_le16(lun); | |
497 | } | |
1da177e4 LT |
498 | } |
499 | wmb(); | |
500 | ||
73208dfd | 501 | qla2x00_isp_cmd(vha, req); |
1da177e4 LT |
502 | |
503 | return (QLA_SUCCESS); | |
504 | } | |
505 | ||
fa2a1ce5 | 506 | int |
73208dfd AC |
507 | qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req, |
508 | struct rsp_que *rsp, uint16_t loop_id, uint16_t lun, | |
509 | uint8_t type) | |
1da177e4 LT |
510 | { |
511 | int ret; | |
512 | unsigned long flags = 0; | |
513 | ||
73208dfd AC |
514 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); |
515 | ret = __qla2x00_marker(vha, req, rsp, loop_id, lun, type); | |
516 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); | |
1da177e4 LT |
517 | |
518 | return (ret); | |
519 | } | |
520 | ||
1da177e4 LT |
521 | /** |
522 | * qla2x00_isp_cmd() - Modify the request ring pointer. | |
523 | * @ha: HA context | |
524 | * | |
525 | * Note: The caller must hold the hardware lock before calling this routine. | |
526 | */ | |
413975a0 | 527 | static void |
73208dfd | 528 | qla2x00_isp_cmd(struct scsi_qla_host *vha, struct req_que *req) |
1da177e4 | 529 | { |
e315cd28 | 530 | struct qla_hw_data *ha = vha->hw; |
73208dfd | 531 | device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id); |
17d98630 | 532 | struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp; |
1da177e4 LT |
533 | |
534 | DEBUG5(printk("%s(): IOCB data:\n", __func__)); | |
535 | DEBUG5(qla2x00_dump_buffer( | |
e315cd28 | 536 | (uint8_t *)req->ring_ptr, REQUEST_ENTRY_SIZE)); |
1da177e4 LT |
537 | |
538 | /* Adjust ring index. */ | |
e315cd28 AC |
539 | req->ring_index++; |
540 | if (req->ring_index == req->length) { | |
541 | req->ring_index = 0; | |
542 | req->ring_ptr = req->ring; | |
1da177e4 | 543 | } else |
e315cd28 | 544 | req->ring_ptr++; |
1da177e4 LT |
545 | |
546 | /* Set chip new ring index. */ | |
a9083016 GM |
547 | if (IS_QLA82XX(ha)) { |
548 | uint32_t dbval = 0x04 | (ha->portnum << 5); | |
549 | ||
550 | /* write, read and verify logic */ | |
551 | dbval = dbval | (req->id << 8) | (req->ring_index << 16); | |
552 | if (ql2xdbwr) | |
553 | qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval); | |
554 | else { | |
555 | WRT_REG_DWORD( | |
556 | (unsigned long __iomem *)ha->nxdb_wr_ptr, | |
557 | dbval); | |
558 | wmb(); | |
559 | while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) { | |
560 | WRT_REG_DWORD((unsigned long __iomem *) | |
561 | ha->nxdb_wr_ptr, dbval); | |
562 | wmb(); | |
563 | } | |
564 | } | |
565 | } else if (ha->mqenable) { | |
566 | /* Set chip new ring index. */ | |
17d98630 AC |
567 | WRT_REG_DWORD(®->isp25mq.req_q_in, req->ring_index); |
568 | RD_REG_DWORD(&ioreg->hccr); | |
a9083016 | 569 | } else { |
73208dfd AC |
570 | if (IS_FWI2_CAPABLE(ha)) { |
571 | WRT_REG_DWORD(®->isp24.req_q_in, req->ring_index); | |
572 | RD_REG_DWORD_RELAXED(®->isp24.req_q_in); | |
573 | } else { | |
574 | WRT_REG_WORD(ISP_REQ_Q_IN(ha, ®->isp), | |
575 | req->ring_index); | |
576 | RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, ®->isp)); | |
577 | } | |
2b6c0cee AV |
578 | } |
579 | ||
580 | } | |
581 | ||
582 | /** | |
583 | * qla24xx_calc_iocbs() - Determine number of Command Type 3 and | |
584 | * Continuation Type 1 IOCBs to allocate. | |
585 | * | |
586 | * @dsds: number of data segment decriptors needed | |
587 | * | |
588 | * Returns the number of IOCB entries needed to store @dsds. | |
589 | */ | |
a9083016 | 590 | inline uint16_t |
2b6c0cee AV |
591 | qla24xx_calc_iocbs(uint16_t dsds) |
592 | { | |
593 | uint16_t iocbs; | |
594 | ||
595 | iocbs = 1; | |
596 | if (dsds > 1) { | |
597 | iocbs += (dsds - 1) / 5; | |
598 | if ((dsds - 1) % 5) | |
599 | iocbs++; | |
600 | } | |
bad75002 AE |
601 | DEBUG3(printk(KERN_DEBUG "%s(): Required PKT(s) = %d\n", |
602 | __func__, iocbs)); | |
2b6c0cee AV |
603 | return iocbs; |
604 | } | |
605 | ||
606 | /** | |
607 | * qla24xx_build_scsi_iocbs() - Build IOCB command utilizing Command Type 7 | |
608 | * IOCB types. | |
609 | * | |
610 | * @sp: SRB command to process | |
611 | * @cmd_pkt: Command type 3 IOCB | |
612 | * @tot_dsds: Total number of segments to transfer | |
613 | */ | |
a9083016 | 614 | inline void |
2b6c0cee AV |
615 | qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt, |
616 | uint16_t tot_dsds) | |
617 | { | |
618 | uint16_t avail_dsds; | |
619 | uint32_t *cur_dsd; | |
e315cd28 | 620 | scsi_qla_host_t *vha; |
2b6c0cee | 621 | struct scsi_cmnd *cmd; |
385d70b4 FT |
622 | struct scatterlist *sg; |
623 | int i; | |
73208dfd | 624 | struct req_que *req; |
2b6c0cee AV |
625 | |
626 | cmd = sp->cmd; | |
627 | ||
628 | /* Update entry type to indicate Command Type 3 IOCB */ | |
629 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
630 | __constant_cpu_to_le32(COMMAND_TYPE_7); | |
631 | ||
632 | /* No data transfer */ | |
385d70b4 | 633 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { |
2b6c0cee AV |
634 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
635 | return; | |
636 | } | |
637 | ||
444786d7 | 638 | vha = sp->fcport->vha; |
67c2e93a | 639 | req = vha->req; |
2b6c0cee AV |
640 | |
641 | /* Set transfer direction */ | |
49fd462a | 642 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { |
2b6c0cee AV |
643 | cmd_pkt->task_mgmt_flags = |
644 | __constant_cpu_to_le16(TMF_WRITE_DATA); | |
e315cd28 | 645 | sp->fcport->vha->hw->qla_stats.output_bytes += |
49fd462a HZ |
646 | scsi_bufflen(sp->cmd); |
647 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
2b6c0cee AV |
648 | cmd_pkt->task_mgmt_flags = |
649 | __constant_cpu_to_le16(TMF_READ_DATA); | |
e315cd28 | 650 | sp->fcport->vha->hw->qla_stats.input_bytes += |
49fd462a HZ |
651 | scsi_bufflen(sp->cmd); |
652 | } | |
2b6c0cee AV |
653 | |
654 | /* One DSD is available in the Command Type 3 IOCB */ | |
655 | avail_dsds = 1; | |
656 | cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address; | |
657 | ||
658 | /* Load data segments */ | |
385d70b4 FT |
659 | |
660 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { | |
661 | dma_addr_t sle_dma; | |
662 | cont_a64_entry_t *cont_pkt; | |
663 | ||
664 | /* Allocate additional continuation packets? */ | |
665 | if (avail_dsds == 0) { | |
666 | /* | |
667 | * Five DSDs are available in the Continuation | |
668 | * Type 1 IOCB. | |
669 | */ | |
67c2e93a | 670 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha); |
385d70b4 FT |
671 | cur_dsd = (uint32_t *)cont_pkt->dseg_0_address; |
672 | avail_dsds = 5; | |
2b6c0cee | 673 | } |
385d70b4 FT |
674 | |
675 | sle_dma = sg_dma_address(sg); | |
676 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
677 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
678 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
679 | avail_dsds--; | |
2b6c0cee AV |
680 | } |
681 | } | |
682 | ||
bad75002 AE |
683 | struct fw_dif_context { |
684 | uint32_t ref_tag; | |
685 | uint16_t app_tag; | |
686 | uint8_t ref_tag_mask[4]; /* Validation/Replacement Mask*/ | |
687 | uint8_t app_tag_mask[2]; /* Validation/Replacement Mask*/ | |
688 | }; | |
689 | ||
690 | /* | |
691 | * qla24xx_set_t10dif_tags_from_cmd - Extract Ref and App tags from SCSI command | |
692 | * | |
693 | */ | |
694 | static inline void | |
695 | qla24xx_set_t10dif_tags(struct scsi_cmnd *cmd, struct fw_dif_context *pkt, | |
696 | unsigned int protcnt) | |
697 | { | |
698 | struct sd_dif_tuple *spt; | |
699 | unsigned char op = scsi_get_prot_op(cmd); | |
700 | ||
701 | switch (scsi_get_prot_type(cmd)) { | |
702 | /* For TYPE 0 protection: no checking */ | |
703 | case SCSI_PROT_DIF_TYPE0: | |
704 | pkt->ref_tag_mask[0] = 0x00; | |
705 | pkt->ref_tag_mask[1] = 0x00; | |
706 | pkt->ref_tag_mask[2] = 0x00; | |
707 | pkt->ref_tag_mask[3] = 0x00; | |
708 | break; | |
709 | ||
710 | /* | |
711 | * For TYPE 2 protection: 16 bit GUARD + 32 bit REF tag has to | |
712 | * match LBA in CDB + N | |
713 | */ | |
714 | case SCSI_PROT_DIF_TYPE2: | |
0c470874 AE |
715 | if (!ql2xenablehba_err_chk) |
716 | break; | |
717 | ||
718 | if (scsi_prot_sg_count(cmd)) { | |
719 | spt = page_address(sg_page(scsi_prot_sglist(cmd))) + | |
720 | scsi_prot_sglist(cmd)[0].offset; | |
721 | pkt->app_tag = swab32(spt->app_tag); | |
722 | pkt->app_tag_mask[0] = 0xff; | |
723 | pkt->app_tag_mask[1] = 0xff; | |
724 | } | |
725 | ||
726 | pkt->ref_tag = cpu_to_le32((uint32_t) | |
727 | (0xffffffff & scsi_get_lba(cmd))); | |
728 | ||
729 | /* enable ALL bytes of the ref tag */ | |
730 | pkt->ref_tag_mask[0] = 0xff; | |
731 | pkt->ref_tag_mask[1] = 0xff; | |
732 | pkt->ref_tag_mask[2] = 0xff; | |
733 | pkt->ref_tag_mask[3] = 0xff; | |
bad75002 AE |
734 | break; |
735 | ||
736 | /* For Type 3 protection: 16 bit GUARD only */ | |
737 | case SCSI_PROT_DIF_TYPE3: | |
738 | pkt->ref_tag_mask[0] = pkt->ref_tag_mask[1] = | |
739 | pkt->ref_tag_mask[2] = pkt->ref_tag_mask[3] = | |
740 | 0x00; | |
741 | break; | |
742 | ||
743 | /* | |
744 | * For TYpe 1 protection: 16 bit GUARD tag, 32 bit REF tag, and | |
745 | * 16 bit app tag. | |
746 | */ | |
747 | case SCSI_PROT_DIF_TYPE1: | |
748 | if (!ql2xenablehba_err_chk) | |
749 | break; | |
750 | ||
751 | if (protcnt && (op == SCSI_PROT_WRITE_STRIP || | |
752 | op == SCSI_PROT_WRITE_PASS)) { | |
753 | spt = page_address(sg_page(scsi_prot_sglist(cmd))) + | |
754 | scsi_prot_sglist(cmd)[0].offset; | |
755 | DEBUG18(printk(KERN_DEBUG | |
756 | "%s(): LBA from user %p, lba = 0x%x\n", | |
757 | __func__, spt, (int)spt->ref_tag)); | |
758 | pkt->ref_tag = swab32(spt->ref_tag); | |
759 | pkt->app_tag_mask[0] = 0x0; | |
760 | pkt->app_tag_mask[1] = 0x0; | |
761 | } else { | |
762 | pkt->ref_tag = cpu_to_le32((uint32_t) | |
763 | (0xffffffff & scsi_get_lba(cmd))); | |
764 | pkt->app_tag = __constant_cpu_to_le16(0); | |
765 | pkt->app_tag_mask[0] = 0x0; | |
766 | pkt->app_tag_mask[1] = 0x0; | |
767 | } | |
768 | /* enable ALL bytes of the ref tag */ | |
769 | pkt->ref_tag_mask[0] = 0xff; | |
770 | pkt->ref_tag_mask[1] = 0xff; | |
771 | pkt->ref_tag_mask[2] = 0xff; | |
772 | pkt->ref_tag_mask[3] = 0xff; | |
773 | break; | |
774 | } | |
775 | ||
776 | DEBUG18(printk(KERN_DEBUG | |
777 | "%s(): Setting protection Tags: (BIG) ref tag = 0x%x," | |
778 | " app tag = 0x%x, prot SG count %d , cmd lba 0x%x," | |
779 | " prot_type=%u\n", __func__, pkt->ref_tag, pkt->app_tag, protcnt, | |
780 | (int)scsi_get_lba(cmd), scsi_get_prot_type(cmd))); | |
781 | } | |
782 | ||
783 | ||
784 | static int | |
785 | qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, uint32_t *dsd, | |
786 | uint16_t tot_dsds) | |
787 | { | |
788 | void *next_dsd; | |
789 | uint8_t avail_dsds = 0; | |
790 | uint32_t dsd_list_len; | |
791 | struct dsd_dma *dsd_ptr; | |
792 | struct scatterlist *sg; | |
793 | uint32_t *cur_dsd = dsd; | |
794 | int i; | |
795 | uint16_t used_dsds = tot_dsds; | |
796 | ||
797 | uint8_t *cp; | |
798 | ||
799 | scsi_for_each_sg(sp->cmd, sg, tot_dsds, i) { | |
800 | dma_addr_t sle_dma; | |
801 | ||
802 | /* Allocate additional continuation packets? */ | |
803 | if (avail_dsds == 0) { | |
804 | avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? | |
805 | QLA_DSDS_PER_IOCB : used_dsds; | |
806 | dsd_list_len = (avail_dsds + 1) * 12; | |
807 | used_dsds -= avail_dsds; | |
808 | ||
809 | /* allocate tracking DS */ | |
810 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
811 | if (!dsd_ptr) | |
812 | return 1; | |
813 | ||
814 | /* allocate new list */ | |
815 | dsd_ptr->dsd_addr = next_dsd = | |
816 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, | |
817 | &dsd_ptr->dsd_list_dma); | |
818 | ||
819 | if (!next_dsd) { | |
820 | /* | |
821 | * Need to cleanup only this dsd_ptr, rest | |
822 | * will be done by sp_free_dma() | |
823 | */ | |
824 | kfree(dsd_ptr); | |
825 | return 1; | |
826 | } | |
827 | ||
828 | list_add_tail(&dsd_ptr->list, | |
829 | &((struct crc_context *)sp->ctx)->dsd_list); | |
830 | ||
831 | sp->flags |= SRB_CRC_CTX_DSD_VALID; | |
832 | ||
833 | /* add new list to cmd iocb or last list */ | |
834 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
835 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
836 | *cur_dsd++ = dsd_list_len; | |
837 | cur_dsd = (uint32_t *)next_dsd; | |
838 | } | |
839 | sle_dma = sg_dma_address(sg); | |
840 | DEBUG18(printk("%s(): %p, sg entry %d - addr =0x%x 0x%x," | |
841 | " len =%d\n", __func__ , cur_dsd, i, LSD(sle_dma), | |
842 | MSD(sle_dma), sg_dma_len(sg))); | |
843 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
844 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
845 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
846 | avail_dsds--; | |
847 | ||
848 | if (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_PASS) { | |
849 | cp = page_address(sg_page(sg)) + sg->offset; | |
850 | DEBUG18(printk("%s(): User Data buffer= %p:\n", | |
851 | __func__ , cp)); | |
852 | } | |
853 | } | |
854 | /* Null termination */ | |
855 | *cur_dsd++ = 0; | |
856 | *cur_dsd++ = 0; | |
857 | *cur_dsd++ = 0; | |
858 | return 0; | |
859 | } | |
860 | ||
861 | static int | |
862 | qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp, | |
863 | uint32_t *dsd, | |
864 | uint16_t tot_dsds) | |
865 | { | |
866 | void *next_dsd; | |
867 | uint8_t avail_dsds = 0; | |
868 | uint32_t dsd_list_len; | |
869 | struct dsd_dma *dsd_ptr; | |
870 | struct scatterlist *sg; | |
871 | int i; | |
872 | struct scsi_cmnd *cmd; | |
873 | uint32_t *cur_dsd = dsd; | |
874 | uint16_t used_dsds = tot_dsds; | |
875 | ||
876 | uint8_t *cp; | |
877 | ||
878 | ||
879 | cmd = sp->cmd; | |
880 | scsi_for_each_prot_sg(cmd, sg, tot_dsds, i) { | |
881 | dma_addr_t sle_dma; | |
882 | ||
883 | /* Allocate additional continuation packets? */ | |
884 | if (avail_dsds == 0) { | |
885 | avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? | |
886 | QLA_DSDS_PER_IOCB : used_dsds; | |
887 | dsd_list_len = (avail_dsds + 1) * 12; | |
888 | used_dsds -= avail_dsds; | |
889 | ||
890 | /* allocate tracking DS */ | |
891 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
892 | if (!dsd_ptr) | |
893 | return 1; | |
894 | ||
895 | /* allocate new list */ | |
896 | dsd_ptr->dsd_addr = next_dsd = | |
897 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, | |
898 | &dsd_ptr->dsd_list_dma); | |
899 | ||
900 | if (!next_dsd) { | |
901 | /* | |
902 | * Need to cleanup only this dsd_ptr, rest | |
903 | * will be done by sp_free_dma() | |
904 | */ | |
905 | kfree(dsd_ptr); | |
906 | return 1; | |
907 | } | |
908 | ||
909 | list_add_tail(&dsd_ptr->list, | |
910 | &((struct crc_context *)sp->ctx)->dsd_list); | |
911 | ||
912 | sp->flags |= SRB_CRC_CTX_DSD_VALID; | |
913 | ||
914 | /* add new list to cmd iocb or last list */ | |
915 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
916 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
917 | *cur_dsd++ = dsd_list_len; | |
918 | cur_dsd = (uint32_t *)next_dsd; | |
919 | } | |
920 | sle_dma = sg_dma_address(sg); | |
921 | if (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_PASS) { | |
922 | DEBUG18(printk(KERN_DEBUG | |
923 | "%s(): %p, sg entry %d - addr =0x%x" | |
924 | "0x%x, len =%d\n", __func__ , cur_dsd, i, | |
925 | LSD(sle_dma), MSD(sle_dma), sg_dma_len(sg))); | |
926 | } | |
927 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
928 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
929 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
930 | ||
931 | if (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_PASS) { | |
932 | cp = page_address(sg_page(sg)) + sg->offset; | |
933 | DEBUG18(printk("%s(): Protection Data buffer = %p:\n", | |
934 | __func__ , cp)); | |
935 | } | |
936 | avail_dsds--; | |
937 | } | |
938 | /* Null termination */ | |
939 | *cur_dsd++ = 0; | |
940 | *cur_dsd++ = 0; | |
941 | *cur_dsd++ = 0; | |
942 | return 0; | |
943 | } | |
944 | ||
945 | /** | |
946 | * qla24xx_build_scsi_crc_2_iocbs() - Build IOCB command utilizing Command | |
947 | * Type 6 IOCB types. | |
948 | * | |
949 | * @sp: SRB command to process | |
950 | * @cmd_pkt: Command type 3 IOCB | |
951 | * @tot_dsds: Total number of segments to transfer | |
952 | */ | |
953 | static inline int | |
954 | qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt, | |
955 | uint16_t tot_dsds, uint16_t tot_prot_dsds, uint16_t fw_prot_opts) | |
956 | { | |
957 | uint32_t *cur_dsd, *fcp_dl; | |
958 | scsi_qla_host_t *vha; | |
959 | struct scsi_cmnd *cmd; | |
960 | struct scatterlist *cur_seg; | |
961 | int sgc; | |
962 | uint32_t total_bytes; | |
963 | uint32_t data_bytes; | |
964 | uint32_t dif_bytes; | |
965 | uint8_t bundling = 1; | |
966 | uint16_t blk_size; | |
967 | uint8_t *clr_ptr; | |
968 | struct crc_context *crc_ctx_pkt = NULL; | |
969 | struct qla_hw_data *ha; | |
970 | uint8_t additional_fcpcdb_len; | |
971 | uint16_t fcp_cmnd_len; | |
972 | struct fcp_cmnd *fcp_cmnd; | |
973 | dma_addr_t crc_ctx_dma; | |
974 | ||
975 | cmd = sp->cmd; | |
976 | ||
977 | sgc = 0; | |
978 | /* Update entry type to indicate Command Type CRC_2 IOCB */ | |
979 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
980 | __constant_cpu_to_le32(COMMAND_TYPE_CRC_2); | |
981 | ||
982 | /* No data transfer */ | |
983 | data_bytes = scsi_bufflen(cmd); | |
984 | if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { | |
985 | DEBUG18(printk(KERN_INFO "%s: Zero data bytes or DMA-NONE %d\n", | |
986 | __func__, data_bytes)); | |
987 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); | |
988 | return QLA_SUCCESS; | |
989 | } | |
990 | ||
991 | vha = sp->fcport->vha; | |
992 | ha = vha->hw; | |
993 | ||
994 | DEBUG18(printk(KERN_DEBUG | |
09d1dc2a MI |
995 | "%s(%ld): Executing cmd sp %p, prot_op=%u.\n", __func__, |
996 | vha->host_no, sp, scsi_get_prot_op(sp->cmd))); | |
bad75002 AE |
997 | |
998 | cmd_pkt->vp_index = sp->fcport->vp_idx; | |
999 | ||
1000 | /* Set transfer direction */ | |
1001 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { | |
1002 | cmd_pkt->control_flags = | |
1003 | __constant_cpu_to_le16(CF_WRITE_DATA); | |
1004 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
1005 | cmd_pkt->control_flags = | |
1006 | __constant_cpu_to_le16(CF_READ_DATA); | |
1007 | } | |
1008 | ||
1009 | tot_prot_dsds = scsi_prot_sg_count(cmd); | |
1010 | if (!tot_prot_dsds) | |
1011 | bundling = 0; | |
1012 | ||
1013 | /* Allocate CRC context from global pool */ | |
1014 | crc_ctx_pkt = sp->ctx = dma_pool_alloc(ha->dl_dma_pool, | |
1015 | GFP_ATOMIC, &crc_ctx_dma); | |
1016 | ||
1017 | if (!crc_ctx_pkt) | |
1018 | goto crc_queuing_error; | |
1019 | ||
1020 | /* Zero out CTX area. */ | |
1021 | clr_ptr = (uint8_t *)crc_ctx_pkt; | |
1022 | memset(clr_ptr, 0, sizeof(*crc_ctx_pkt)); | |
1023 | ||
1024 | crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma; | |
1025 | ||
1026 | sp->flags |= SRB_CRC_CTX_DMA_VALID; | |
1027 | ||
1028 | /* Set handle */ | |
1029 | crc_ctx_pkt->handle = cmd_pkt->handle; | |
1030 | ||
1031 | INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list); | |
1032 | ||
1033 | qla24xx_set_t10dif_tags(cmd, (struct fw_dif_context *) | |
1034 | &crc_ctx_pkt->ref_tag, tot_prot_dsds); | |
1035 | ||
1036 | cmd_pkt->crc_context_address[0] = cpu_to_le32(LSD(crc_ctx_dma)); | |
1037 | cmd_pkt->crc_context_address[1] = cpu_to_le32(MSD(crc_ctx_dma)); | |
1038 | cmd_pkt->crc_context_len = CRC_CONTEXT_LEN_FW; | |
1039 | ||
1040 | /* Determine SCSI command length -- align to 4 byte boundary */ | |
1041 | if (cmd->cmd_len > 16) { | |
1042 | DEBUG18(printk(KERN_INFO "%s(): **** SCSI CMD > 16\n", | |
1043 | __func__)); | |
1044 | additional_fcpcdb_len = cmd->cmd_len - 16; | |
1045 | if ((cmd->cmd_len % 4) != 0) { | |
1046 | /* SCSI cmd > 16 bytes must be multiple of 4 */ | |
1047 | goto crc_queuing_error; | |
1048 | } | |
1049 | fcp_cmnd_len = 12 + cmd->cmd_len + 4; | |
1050 | } else { | |
1051 | additional_fcpcdb_len = 0; | |
1052 | fcp_cmnd_len = 12 + 16 + 4; | |
1053 | } | |
1054 | ||
1055 | fcp_cmnd = &crc_ctx_pkt->fcp_cmnd; | |
1056 | ||
1057 | fcp_cmnd->additional_cdb_len = additional_fcpcdb_len; | |
1058 | if (cmd->sc_data_direction == DMA_TO_DEVICE) | |
1059 | fcp_cmnd->additional_cdb_len |= 1; | |
1060 | else if (cmd->sc_data_direction == DMA_FROM_DEVICE) | |
1061 | fcp_cmnd->additional_cdb_len |= 2; | |
1062 | ||
1063 | int_to_scsilun(sp->cmd->device->lun, &fcp_cmnd->lun); | |
1064 | memcpy(fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); | |
1065 | cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(fcp_cmnd_len); | |
1066 | cmd_pkt->fcp_cmnd_dseg_address[0] = cpu_to_le32( | |
1067 | LSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF)); | |
1068 | cmd_pkt->fcp_cmnd_dseg_address[1] = cpu_to_le32( | |
1069 | MSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF)); | |
1070 | fcp_cmnd->task_attribute = 0; | |
65155b37 | 1071 | fcp_cmnd->task_management = 0; |
bad75002 AE |
1072 | |
1073 | cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */ | |
1074 | ||
1075 | DEBUG18(printk(KERN_INFO "%s(%ld): Total SG(s) Entries %d, Data" | |
1076 | "entries %d, data bytes %d, Protection entries %d\n", | |
1077 | __func__, vha->host_no, tot_dsds, (tot_dsds-tot_prot_dsds), | |
1078 | data_bytes, tot_prot_dsds)); | |
1079 | ||
1080 | /* Compute dif len and adjust data len to incude protection */ | |
1081 | total_bytes = data_bytes; | |
1082 | dif_bytes = 0; | |
1083 | blk_size = cmd->device->sector_size; | |
0c470874 | 1084 | if (scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) { |
bad75002 AE |
1085 | dif_bytes = (data_bytes / blk_size) * 8; |
1086 | total_bytes += dif_bytes; | |
1087 | } | |
1088 | ||
1089 | if (!ql2xenablehba_err_chk) | |
1090 | fw_prot_opts |= 0x10; /* Disable Guard tag checking */ | |
1091 | ||
1092 | if (!bundling) { | |
1093 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.nobundling.data_address; | |
1094 | } else { | |
1095 | /* | |
1096 | * Configure Bundling if we need to fetch interlaving | |
1097 | * protection PCI accesses | |
1098 | */ | |
1099 | fw_prot_opts |= PO_ENABLE_DIF_BUNDLING; | |
1100 | crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes); | |
1101 | crc_ctx_pkt->u.bundling.dseg_count = cpu_to_le16(tot_dsds - | |
1102 | tot_prot_dsds); | |
1103 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.data_address; | |
1104 | } | |
1105 | ||
1106 | /* Finish the common fields of CRC pkt */ | |
1107 | crc_ctx_pkt->blk_size = cpu_to_le16(blk_size); | |
1108 | crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts); | |
1109 | crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes); | |
1110 | crc_ctx_pkt->guard_seed = __constant_cpu_to_le16(0); | |
1111 | /* Fibre channel byte count */ | |
1112 | cmd_pkt->byte_count = cpu_to_le32(total_bytes); | |
1113 | fcp_dl = (uint32_t *)(crc_ctx_pkt->fcp_cmnd.cdb + 16 + | |
1114 | additional_fcpcdb_len); | |
1115 | *fcp_dl = htonl(total_bytes); | |
1116 | ||
1117 | DEBUG18(printk(KERN_INFO "%s(%ld): dif bytes = 0x%x (%d), total bytes" | |
1118 | " = 0x%x (%d), dat block size =0x%x (%d)\n", __func__, | |
1119 | vha->host_no, dif_bytes, dif_bytes, total_bytes, total_bytes, | |
1120 | crc_ctx_pkt->blk_size, crc_ctx_pkt->blk_size)); | |
1121 | ||
0c470874 AE |
1122 | if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { |
1123 | DEBUG18(printk(KERN_INFO "%s: Zero data bytes or DMA-NONE %d\n", | |
1124 | __func__, data_bytes)); | |
1125 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); | |
1126 | return QLA_SUCCESS; | |
1127 | } | |
bad75002 AE |
1128 | /* Walks data segments */ |
1129 | ||
1130 | cmd_pkt->control_flags |= | |
1131 | __constant_cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE); | |
1132 | if (qla24xx_walk_and_build_sglist(ha, sp, cur_dsd, | |
1133 | (tot_dsds - tot_prot_dsds))) | |
1134 | goto crc_queuing_error; | |
1135 | ||
1136 | if (bundling && tot_prot_dsds) { | |
1137 | /* Walks dif segments */ | |
1138 | cur_seg = scsi_prot_sglist(cmd); | |
1139 | cmd_pkt->control_flags |= | |
1140 | __constant_cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE); | |
1141 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.dif_address; | |
1142 | if (qla24xx_walk_and_build_prot_sglist(ha, sp, cur_dsd, | |
1143 | tot_prot_dsds)) | |
1144 | goto crc_queuing_error; | |
1145 | } | |
1146 | return QLA_SUCCESS; | |
1147 | ||
1148 | crc_queuing_error: | |
1149 | DEBUG18(qla_printk(KERN_INFO, ha, | |
1150 | "CMD sent FAILED crc_q error:sp = %p\n", sp)); | |
1151 | /* Cleanup will be performed by the caller */ | |
1152 | ||
1153 | return QLA_FUNCTION_FAILED; | |
1154 | } | |
2b6c0cee AV |
1155 | |
1156 | /** | |
1157 | * qla24xx_start_scsi() - Send a SCSI command to the ISP | |
1158 | * @sp: command to send to the ISP | |
1159 | * | |
cc3ef7bc | 1160 | * Returns non-zero if a failure occurred, else zero. |
2b6c0cee AV |
1161 | */ |
1162 | int | |
1163 | qla24xx_start_scsi(srb_t *sp) | |
1164 | { | |
385d70b4 | 1165 | int ret, nseg; |
2b6c0cee | 1166 | unsigned long flags; |
2b6c0cee AV |
1167 | uint32_t *clr_ptr; |
1168 | uint32_t index; | |
1169 | uint32_t handle; | |
1170 | struct cmd_type_7 *cmd_pkt; | |
2b6c0cee AV |
1171 | uint16_t cnt; |
1172 | uint16_t req_cnt; | |
1173 | uint16_t tot_dsds; | |
73208dfd AC |
1174 | struct req_que *req = NULL; |
1175 | struct rsp_que *rsp = NULL; | |
1176 | struct scsi_cmnd *cmd = sp->cmd; | |
444786d7 | 1177 | struct scsi_qla_host *vha = sp->fcport->vha; |
73208dfd | 1178 | struct qla_hw_data *ha = vha->hw; |
2b6c0cee AV |
1179 | |
1180 | /* Setup device pointers. */ | |
1181 | ret = 0; | |
73208dfd | 1182 | |
59e0b8b0 AC |
1183 | qla25xx_set_que(sp, &rsp); |
1184 | req = vha->req; | |
73208dfd | 1185 | |
2b6c0cee AV |
1186 | /* So we know we haven't pci_map'ed anything yet */ |
1187 | tot_dsds = 0; | |
1188 | ||
1189 | /* Send marker if required */ | |
e315cd28 | 1190 | if (vha->marker_needed != 0) { |
73208dfd AC |
1191 | if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) |
1192 | != QLA_SUCCESS) | |
2b6c0cee | 1193 | return QLA_FUNCTION_FAILED; |
e315cd28 | 1194 | vha->marker_needed = 0; |
2b6c0cee AV |
1195 | } |
1196 | ||
1197 | /* Acquire ring specific lock */ | |
e315cd28 | 1198 | spin_lock_irqsave(&ha->hardware_lock, flags); |
2b6c0cee AV |
1199 | |
1200 | /* Check for room in outstanding command list. */ | |
e315cd28 | 1201 | handle = req->current_outstanding_cmd; |
2b6c0cee AV |
1202 | for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { |
1203 | handle++; | |
1204 | if (handle == MAX_OUTSTANDING_COMMANDS) | |
1205 | handle = 1; | |
e315cd28 | 1206 | if (!req->outstanding_cmds[handle]) |
2b6c0cee AV |
1207 | break; |
1208 | } | |
1209 | if (index == MAX_OUTSTANDING_COMMANDS) | |
1210 | goto queuing_error; | |
1211 | ||
1212 | /* Map the sg table so we have an accurate count of sg entries needed */ | |
2c3dfe3f SJ |
1213 | if (scsi_sg_count(cmd)) { |
1214 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
1215 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
1216 | if (unlikely(!nseg)) | |
2b6c0cee | 1217 | goto queuing_error; |
2c3dfe3f SJ |
1218 | } else |
1219 | nseg = 0; | |
1220 | ||
385d70b4 | 1221 | tot_dsds = nseg; |
2b6c0cee AV |
1222 | |
1223 | req_cnt = qla24xx_calc_iocbs(tot_dsds); | |
e315cd28 | 1224 | if (req->cnt < (req_cnt + 2)) { |
08029990 | 1225 | cnt = RD_REG_DWORD_RELAXED(req->req_q_out); |
73208dfd | 1226 | |
e315cd28 AC |
1227 | if (req->ring_index < cnt) |
1228 | req->cnt = cnt - req->ring_index; | |
2b6c0cee | 1229 | else |
e315cd28 AC |
1230 | req->cnt = req->length - |
1231 | (req->ring_index - cnt); | |
2b6c0cee | 1232 | } |
e315cd28 | 1233 | if (req->cnt < (req_cnt + 2)) |
2b6c0cee | 1234 | goto queuing_error; |
2b6c0cee AV |
1235 | |
1236 | /* Build command packet. */ | |
e315cd28 AC |
1237 | req->current_outstanding_cmd = handle; |
1238 | req->outstanding_cmds[handle] = sp; | |
cf53b069 | 1239 | sp->handle = handle; |
2b6c0cee | 1240 | sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
e315cd28 | 1241 | req->cnt -= req_cnt; |
2b6c0cee | 1242 | |
e315cd28 | 1243 | cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; |
2afa19a9 | 1244 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); |
2b6c0cee AV |
1245 | |
1246 | /* Zero out remaining portion of packet. */ | |
72df8325 | 1247 | /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ |
2b6c0cee AV |
1248 | clr_ptr = (uint32_t *)cmd_pkt + 2; |
1249 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
1250 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
1251 | ||
1252 | /* Set NPORT-ID and LUN number*/ | |
1253 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1254 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1255 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
1256 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
2c3dfe3f | 1257 | cmd_pkt->vp_index = sp->fcport->vp_idx; |
2b6c0cee | 1258 | |
661c3f6c | 1259 | int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun); |
0d4be124 | 1260 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); |
2b6c0cee | 1261 | |
2b6c0cee AV |
1262 | /* Load SCSI command packet. */ |
1263 | memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); | |
1264 | host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); | |
1265 | ||
385d70b4 | 1266 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); |
2b6c0cee AV |
1267 | |
1268 | /* Build IOCB segments */ | |
1269 | qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds); | |
1270 | ||
1271 | /* Set total data segment count. */ | |
1272 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
2afa19a9 AC |
1273 | /* Specify response queue number where completion should happen */ |
1274 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
2b6c0cee AV |
1275 | wmb(); |
1276 | ||
1277 | /* Adjust ring index. */ | |
e315cd28 AC |
1278 | req->ring_index++; |
1279 | if (req->ring_index == req->length) { | |
1280 | req->ring_index = 0; | |
1281 | req->ring_ptr = req->ring; | |
2b6c0cee | 1282 | } else |
e315cd28 | 1283 | req->ring_ptr++; |
2b6c0cee AV |
1284 | |
1285 | sp->flags |= SRB_DMA_VALID; | |
2b6c0cee AV |
1286 | |
1287 | /* Set chip new ring index. */ | |
08029990 AV |
1288 | WRT_REG_DWORD(req->req_q_in, req->ring_index); |
1289 | RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); | |
2b6c0cee | 1290 | |
4fdfefe5 | 1291 | /* Manage unprocessed RIO/ZIO commands in response queue. */ |
e315cd28 | 1292 | if (vha->flags.process_response_queue && |
73208dfd | 1293 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) |
2afa19a9 | 1294 | qla24xx_process_response_queue(vha, rsp); |
4fdfefe5 | 1295 | |
e315cd28 | 1296 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
2b6c0cee AV |
1297 | return QLA_SUCCESS; |
1298 | ||
1299 | queuing_error: | |
385d70b4 FT |
1300 | if (tot_dsds) |
1301 | scsi_dma_unmap(cmd); | |
1302 | ||
e315cd28 | 1303 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
2b6c0cee AV |
1304 | |
1305 | return QLA_FUNCTION_FAILED; | |
1da177e4 | 1306 | } |
68ca949c | 1307 | |
bad75002 AE |
1308 | |
1309 | /** | |
1310 | * qla24xx_dif_start_scsi() - Send a SCSI command to the ISP | |
1311 | * @sp: command to send to the ISP | |
1312 | * | |
1313 | * Returns non-zero if a failure occurred, else zero. | |
1314 | */ | |
1315 | int | |
1316 | qla24xx_dif_start_scsi(srb_t *sp) | |
1317 | { | |
1318 | int nseg; | |
1319 | unsigned long flags; | |
1320 | uint32_t *clr_ptr; | |
1321 | uint32_t index; | |
1322 | uint32_t handle; | |
1323 | uint16_t cnt; | |
1324 | uint16_t req_cnt = 0; | |
1325 | uint16_t tot_dsds; | |
1326 | uint16_t tot_prot_dsds; | |
1327 | uint16_t fw_prot_opts = 0; | |
1328 | struct req_que *req = NULL; | |
1329 | struct rsp_que *rsp = NULL; | |
1330 | struct scsi_cmnd *cmd = sp->cmd; | |
1331 | struct scsi_qla_host *vha = sp->fcport->vha; | |
1332 | struct qla_hw_data *ha = vha->hw; | |
1333 | struct cmd_type_crc_2 *cmd_pkt; | |
1334 | uint32_t status = 0; | |
1335 | ||
1336 | #define QDSS_GOT_Q_SPACE BIT_0 | |
1337 | ||
0c470874 AE |
1338 | /* Only process protection or >16 cdb in this routine */ |
1339 | if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) { | |
1340 | if (cmd->cmd_len <= 16) | |
1341 | return qla24xx_start_scsi(sp); | |
1342 | } | |
bad75002 AE |
1343 | |
1344 | /* Setup device pointers. */ | |
1345 | ||
1346 | qla25xx_set_que(sp, &rsp); | |
1347 | req = vha->req; | |
1348 | ||
1349 | /* So we know we haven't pci_map'ed anything yet */ | |
1350 | tot_dsds = 0; | |
1351 | ||
1352 | /* Send marker if required */ | |
1353 | if (vha->marker_needed != 0) { | |
1354 | if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != | |
1355 | QLA_SUCCESS) | |
1356 | return QLA_FUNCTION_FAILED; | |
1357 | vha->marker_needed = 0; | |
1358 | } | |
1359 | ||
1360 | /* Acquire ring specific lock */ | |
1361 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
1362 | ||
1363 | /* Check for room in outstanding command list. */ | |
1364 | handle = req->current_outstanding_cmd; | |
1365 | for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { | |
1366 | handle++; | |
1367 | if (handle == MAX_OUTSTANDING_COMMANDS) | |
1368 | handle = 1; | |
1369 | if (!req->outstanding_cmds[handle]) | |
1370 | break; | |
1371 | } | |
1372 | ||
1373 | if (index == MAX_OUTSTANDING_COMMANDS) | |
1374 | goto queuing_error; | |
1375 | ||
1376 | /* Compute number of required data segments */ | |
1377 | /* Map the sg table so we have an accurate count of sg entries needed */ | |
1378 | if (scsi_sg_count(cmd)) { | |
1379 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
1380 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
1381 | if (unlikely(!nseg)) | |
1382 | goto queuing_error; | |
1383 | else | |
1384 | sp->flags |= SRB_DMA_VALID; | |
1385 | } else | |
1386 | nseg = 0; | |
1387 | ||
1388 | /* number of required data segments */ | |
1389 | tot_dsds = nseg; | |
1390 | ||
1391 | /* Compute number of required protection segments */ | |
1392 | if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) { | |
1393 | nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd), | |
1394 | scsi_prot_sg_count(cmd), cmd->sc_data_direction); | |
1395 | if (unlikely(!nseg)) | |
1396 | goto queuing_error; | |
1397 | else | |
1398 | sp->flags |= SRB_CRC_PROT_DMA_VALID; | |
1399 | } else { | |
1400 | nseg = 0; | |
1401 | } | |
1402 | ||
1403 | req_cnt = 1; | |
1404 | /* Total Data and protection sg segment(s) */ | |
1405 | tot_prot_dsds = nseg; | |
1406 | tot_dsds += nseg; | |
1407 | if (req->cnt < (req_cnt + 2)) { | |
1408 | cnt = RD_REG_DWORD_RELAXED(req->req_q_out); | |
1409 | ||
1410 | if (req->ring_index < cnt) | |
1411 | req->cnt = cnt - req->ring_index; | |
1412 | else | |
1413 | req->cnt = req->length - | |
1414 | (req->ring_index - cnt); | |
1415 | } | |
1416 | ||
1417 | if (req->cnt < (req_cnt + 2)) | |
1418 | goto queuing_error; | |
1419 | ||
1420 | status |= QDSS_GOT_Q_SPACE; | |
1421 | ||
1422 | /* Build header part of command packet (excluding the OPCODE). */ | |
1423 | req->current_outstanding_cmd = handle; | |
1424 | req->outstanding_cmds[handle] = sp; | |
1425 | sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle; | |
1426 | req->cnt -= req_cnt; | |
1427 | ||
1428 | /* Fill-in common area */ | |
1429 | cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr; | |
1430 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); | |
1431 | ||
1432 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
1433 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
1434 | ||
1435 | /* Set NPORT-ID and LUN number*/ | |
1436 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1437 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1438 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
1439 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
1440 | ||
1441 | int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun); | |
1442 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); | |
1443 | ||
1444 | /* Total Data and protection segment(s) */ | |
1445 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
1446 | ||
1447 | /* Build IOCB segments and adjust for data protection segments */ | |
1448 | if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *) | |
1449 | req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) != | |
1450 | QLA_SUCCESS) | |
1451 | goto queuing_error; | |
1452 | ||
1453 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
1454 | /* Specify response queue number where completion should happen */ | |
1455 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
1456 | cmd_pkt->timeout = __constant_cpu_to_le16(0); | |
1457 | wmb(); | |
1458 | ||
1459 | /* Adjust ring index. */ | |
1460 | req->ring_index++; | |
1461 | if (req->ring_index == req->length) { | |
1462 | req->ring_index = 0; | |
1463 | req->ring_ptr = req->ring; | |
1464 | } else | |
1465 | req->ring_ptr++; | |
1466 | ||
1467 | /* Set chip new ring index. */ | |
1468 | WRT_REG_DWORD(req->req_q_in, req->ring_index); | |
1469 | RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); | |
1470 | ||
1471 | /* Manage unprocessed RIO/ZIO commands in response queue. */ | |
1472 | if (vha->flags.process_response_queue && | |
1473 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) | |
1474 | qla24xx_process_response_queue(vha, rsp); | |
1475 | ||
1476 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
1477 | ||
1478 | return QLA_SUCCESS; | |
1479 | ||
1480 | queuing_error: | |
1481 | if (status & QDSS_GOT_Q_SPACE) { | |
1482 | req->outstanding_cmds[handle] = NULL; | |
1483 | req->cnt += req_cnt; | |
1484 | } | |
1485 | /* Cleanup will be performed by the caller (queuecommand) */ | |
1486 | ||
1487 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
1488 | ||
1489 | DEBUG18(qla_printk(KERN_INFO, ha, | |
1490 | "CMD sent FAILED SCSI prot_op:%02x\n", scsi_get_prot_op(cmd))); | |
1491 | return QLA_FUNCTION_FAILED; | |
1492 | } | |
1493 | ||
1494 | ||
59e0b8b0 | 1495 | static void qla25xx_set_que(srb_t *sp, struct rsp_que **rsp) |
68ca949c AC |
1496 | { |
1497 | struct scsi_cmnd *cmd = sp->cmd; | |
68ca949c AC |
1498 | struct qla_hw_data *ha = sp->fcport->vha->hw; |
1499 | int affinity = cmd->request->cpu; | |
1500 | ||
7163ea81 | 1501 | if (ha->flags.cpu_affinity_enabled && affinity >= 0 && |
59e0b8b0 | 1502 | affinity < ha->max_rsp_queues - 1) |
68ca949c | 1503 | *rsp = ha->rsp_q_map[affinity + 1]; |
59e0b8b0 | 1504 | else |
68ca949c | 1505 | *rsp = ha->rsp_q_map[0]; |
68ca949c | 1506 | } |
ac280b67 AV |
1507 | |
1508 | /* Generic Control-SRB manipulation functions. */ | |
d94d10e7 GM |
1509 | void * |
1510 | qla2x00_alloc_iocbs(scsi_qla_host_t *vha, srb_t *sp) | |
ac280b67 | 1511 | { |
ac280b67 AV |
1512 | struct qla_hw_data *ha = vha->hw; |
1513 | struct req_que *req = ha->req_q_map[0]; | |
1514 | device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id); | |
1515 | uint32_t index, handle; | |
1516 | request_t *pkt; | |
1517 | uint16_t cnt, req_cnt; | |
1518 | ||
1519 | pkt = NULL; | |
1520 | req_cnt = 1; | |
d94d10e7 GM |
1521 | handle = 0; |
1522 | ||
1523 | if (!sp) | |
1524 | goto skip_cmd_array; | |
ac280b67 AV |
1525 | |
1526 | /* Check for room in outstanding command list. */ | |
1527 | handle = req->current_outstanding_cmd; | |
1528 | for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { | |
1529 | handle++; | |
1530 | if (handle == MAX_OUTSTANDING_COMMANDS) | |
1531 | handle = 1; | |
1532 | if (!req->outstanding_cmds[handle]) | |
1533 | break; | |
1534 | } | |
1535 | if (index == MAX_OUTSTANDING_COMMANDS) | |
1536 | goto queuing_error; | |
1537 | ||
d94d10e7 GM |
1538 | /* Prep command array. */ |
1539 | req->current_outstanding_cmd = handle; | |
1540 | req->outstanding_cmds[handle] = sp; | |
1541 | sp->handle = handle; | |
1542 | ||
1543 | skip_cmd_array: | |
ac280b67 AV |
1544 | /* Check for room on request queue. */ |
1545 | if (req->cnt < req_cnt) { | |
1546 | if (ha->mqenable) | |
1547 | cnt = RD_REG_DWORD(®->isp25mq.req_q_out); | |
d94d10e7 GM |
1548 | else if (IS_QLA82XX(ha)) |
1549 | cnt = RD_REG_DWORD(®->isp82.req_q_out); | |
ac280b67 AV |
1550 | else if (IS_FWI2_CAPABLE(ha)) |
1551 | cnt = RD_REG_DWORD(®->isp24.req_q_out); | |
1552 | else | |
1553 | cnt = qla2x00_debounce_register( | |
1554 | ISP_REQ_Q_OUT(ha, ®->isp)); | |
1555 | ||
1556 | if (req->ring_index < cnt) | |
1557 | req->cnt = cnt - req->ring_index; | |
1558 | else | |
1559 | req->cnt = req->length - | |
1560 | (req->ring_index - cnt); | |
1561 | } | |
1562 | if (req->cnt < req_cnt) | |
1563 | goto queuing_error; | |
1564 | ||
1565 | /* Prep packet */ | |
ac280b67 | 1566 | req->cnt -= req_cnt; |
ac280b67 AV |
1567 | pkt = req->ring_ptr; |
1568 | memset(pkt, 0, REQUEST_ENTRY_SIZE); | |
1569 | pkt->entry_count = req_cnt; | |
1570 | pkt->handle = handle; | |
ac280b67 AV |
1571 | |
1572 | queuing_error: | |
1573 | return pkt; | |
1574 | } | |
1575 | ||
1576 | static void | |
1577 | qla2x00_start_iocbs(srb_t *sp) | |
1578 | { | |
1579 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
1580 | struct req_que *req = ha->req_q_map[0]; | |
1581 | device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id); | |
1582 | struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp; | |
1583 | ||
a9083016 GM |
1584 | if (IS_QLA82XX(ha)) { |
1585 | qla82xx_start_iocbs(sp); | |
ac280b67 | 1586 | } else { |
a9083016 GM |
1587 | /* Adjust ring index. */ |
1588 | req->ring_index++; | |
1589 | if (req->ring_index == req->length) { | |
1590 | req->ring_index = 0; | |
1591 | req->ring_ptr = req->ring; | |
1592 | } else | |
1593 | req->ring_ptr++; | |
1594 | ||
1595 | /* Set chip new ring index. */ | |
1596 | if (ha->mqenable) { | |
1597 | WRT_REG_DWORD(®->isp25mq.req_q_in, req->ring_index); | |
1598 | RD_REG_DWORD(&ioreg->hccr); | |
1599 | } else if (IS_QLA82XX(ha)) { | |
1600 | qla82xx_start_iocbs(sp); | |
1601 | } else if (IS_FWI2_CAPABLE(ha)) { | |
1602 | WRT_REG_DWORD(®->isp24.req_q_in, req->ring_index); | |
1603 | RD_REG_DWORD_RELAXED(®->isp24.req_q_in); | |
1604 | } else { | |
1605 | WRT_REG_WORD(ISP_REQ_Q_IN(ha, ®->isp), | |
1606 | req->ring_index); | |
1607 | RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, ®->isp)); | |
1608 | } | |
ac280b67 AV |
1609 | } |
1610 | } | |
1611 | ||
1612 | static void | |
1613 | qla24xx_login_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1614 | { | |
4916392b MI |
1615 | struct srb_ctx *ctx = sp->ctx; |
1616 | struct srb_iocb *lio = ctx->u.iocb_cmd; | |
ac280b67 AV |
1617 | |
1618 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1619 | logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI); | |
4916392b | 1620 | if (lio->u.logio.flags & SRB_LOGIN_COND_PLOGI) |
ac280b67 | 1621 | logio->control_flags |= cpu_to_le16(LCF_COND_PLOGI); |
4916392b | 1622 | if (lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI) |
ac280b67 AV |
1623 | logio->control_flags |= cpu_to_le16(LCF_SKIP_PRLI); |
1624 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1625 | logio->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1626 | logio->port_id[1] = sp->fcport->d_id.b.area; | |
1627 | logio->port_id[2] = sp->fcport->d_id.b.domain; | |
1628 | logio->vp_index = sp->fcport->vp_idx; | |
1629 | } | |
1630 | ||
1631 | static void | |
1632 | qla2x00_login_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1633 | { | |
1634 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
4916392b MI |
1635 | struct srb_ctx *ctx = sp->ctx; |
1636 | struct srb_iocb *lio = ctx->u.iocb_cmd; | |
ac280b67 AV |
1637 | uint16_t opts; |
1638 | ||
b963752f | 1639 | mbx->entry_type = MBX_IOCB_TYPE; |
ac280b67 AV |
1640 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); |
1641 | mbx->mb0 = cpu_to_le16(MBC_LOGIN_FABRIC_PORT); | |
4916392b MI |
1642 | opts = lio->u.logio.flags & SRB_LOGIN_COND_PLOGI ? BIT_0 : 0; |
1643 | opts |= lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI ? BIT_1 : 0; | |
ac280b67 AV |
1644 | if (HAS_EXTENDED_IDS(ha)) { |
1645 | mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); | |
1646 | mbx->mb10 = cpu_to_le16(opts); | |
1647 | } else { | |
1648 | mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | opts); | |
1649 | } | |
1650 | mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); | |
1651 | mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | | |
1652 | sp->fcport->d_id.b.al_pa); | |
1653 | mbx->mb9 = cpu_to_le16(sp->fcport->vp_idx); | |
1654 | } | |
1655 | ||
1656 | static void | |
1657 | qla24xx_logout_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1658 | { | |
1659 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1660 | logio->control_flags = | |
1661 | cpu_to_le16(LCF_COMMAND_LOGO|LCF_IMPL_LOGO); | |
1662 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1663 | logio->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1664 | logio->port_id[1] = sp->fcport->d_id.b.area; | |
1665 | logio->port_id[2] = sp->fcport->d_id.b.domain; | |
1666 | logio->vp_index = sp->fcport->vp_idx; | |
1667 | } | |
1668 | ||
1669 | static void | |
1670 | qla2x00_logout_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1671 | { | |
1672 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
1673 | ||
b963752f | 1674 | mbx->entry_type = MBX_IOCB_TYPE; |
ac280b67 AV |
1675 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); |
1676 | mbx->mb0 = cpu_to_le16(MBC_LOGOUT_FABRIC_PORT); | |
1677 | mbx->mb1 = HAS_EXTENDED_IDS(ha) ? | |
1678 | cpu_to_le16(sp->fcport->loop_id): | |
1679 | cpu_to_le16(sp->fcport->loop_id << 8); | |
1680 | mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); | |
1681 | mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | | |
1682 | sp->fcport->d_id.b.al_pa); | |
1683 | mbx->mb9 = cpu_to_le16(sp->fcport->vp_idx); | |
1684 | /* Implicit: mbx->mbx10 = 0. */ | |
1685 | } | |
1686 | ||
5ff1d584 AV |
1687 | static void |
1688 | qla24xx_adisc_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1689 | { | |
1690 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1691 | logio->control_flags = cpu_to_le16(LCF_COMMAND_ADISC); | |
1692 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1693 | logio->vp_index = sp->fcport->vp_idx; | |
1694 | } | |
1695 | ||
1696 | static void | |
1697 | qla2x00_adisc_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1698 | { | |
1699 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
1700 | ||
1701 | mbx->entry_type = MBX_IOCB_TYPE; | |
1702 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); | |
1703 | mbx->mb0 = cpu_to_le16(MBC_GET_PORT_DATABASE); | |
1704 | if (HAS_EXTENDED_IDS(ha)) { | |
1705 | mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); | |
1706 | mbx->mb10 = cpu_to_le16(BIT_0); | |
1707 | } else { | |
1708 | mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | BIT_0); | |
1709 | } | |
1710 | mbx->mb2 = cpu_to_le16(MSW(ha->async_pd_dma)); | |
1711 | mbx->mb3 = cpu_to_le16(LSW(ha->async_pd_dma)); | |
1712 | mbx->mb6 = cpu_to_le16(MSW(MSD(ha->async_pd_dma))); | |
1713 | mbx->mb7 = cpu_to_le16(LSW(MSD(ha->async_pd_dma))); | |
1714 | mbx->mb9 = cpu_to_le16(sp->fcport->vp_idx); | |
1715 | } | |
1716 | ||
3822263e MI |
1717 | static void |
1718 | qla24xx_tm_iocb(srb_t *sp, struct tsk_mgmt_entry *tsk) | |
1719 | { | |
1720 | uint32_t flags; | |
1721 | unsigned int lun; | |
1722 | struct fc_port *fcport = sp->fcport; | |
1723 | scsi_qla_host_t *vha = fcport->vha; | |
1724 | struct qla_hw_data *ha = vha->hw; | |
1725 | struct srb_ctx *ctx = sp->ctx; | |
1726 | struct srb_iocb *iocb = ctx->u.iocb_cmd; | |
1727 | struct req_que *req = vha->req; | |
1728 | ||
1729 | flags = iocb->u.tmf.flags; | |
1730 | lun = iocb->u.tmf.lun; | |
1731 | ||
1732 | tsk->entry_type = TSK_MGMT_IOCB_TYPE; | |
1733 | tsk->entry_count = 1; | |
1734 | tsk->handle = MAKE_HANDLE(req->id, tsk->handle); | |
1735 | tsk->nport_handle = cpu_to_le16(fcport->loop_id); | |
1736 | tsk->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); | |
1737 | tsk->control_flags = cpu_to_le32(flags); | |
1738 | tsk->port_id[0] = fcport->d_id.b.al_pa; | |
1739 | tsk->port_id[1] = fcport->d_id.b.area; | |
1740 | tsk->port_id[2] = fcport->d_id.b.domain; | |
1741 | tsk->vp_index = fcport->vp_idx; | |
1742 | ||
1743 | if (flags == TCF_LUN_RESET) { | |
1744 | int_to_scsilun(lun, &tsk->lun); | |
1745 | host_to_fcp_swap((uint8_t *)&tsk->lun, | |
1746 | sizeof(tsk->lun)); | |
1747 | } | |
1748 | } | |
1749 | ||
9a069e19 GM |
1750 | static void |
1751 | qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) | |
1752 | { | |
4916392b | 1753 | struct fc_bsg_job *bsg_job = ((struct srb_ctx *)sp->ctx)->u.bsg_job; |
9a069e19 GM |
1754 | |
1755 | els_iocb->entry_type = ELS_IOCB_TYPE; | |
1756 | els_iocb->entry_count = 1; | |
1757 | els_iocb->sys_define = 0; | |
1758 | els_iocb->entry_status = 0; | |
1759 | els_iocb->handle = sp->handle; | |
1760 | els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1761 | els_iocb->tx_dsd_count = __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
1762 | els_iocb->vp_index = sp->fcport->vp_idx; | |
1763 | els_iocb->sof_type = EST_SOFI3; | |
1764 | els_iocb->rx_dsd_count = __constant_cpu_to_le16(bsg_job->reply_payload.sg_cnt); | |
1765 | ||
4916392b MI |
1766 | els_iocb->opcode = |
1767 | (((struct srb_ctx *)sp->ctx)->type == SRB_ELS_CMD_RPT) ? | |
1768 | bsg_job->request->rqst_data.r_els.els_code : | |
1769 | bsg_job->request->rqst_data.h_els.command_code; | |
9a069e19 GM |
1770 | els_iocb->port_id[0] = sp->fcport->d_id.b.al_pa; |
1771 | els_iocb->port_id[1] = sp->fcport->d_id.b.area; | |
1772 | els_iocb->port_id[2] = sp->fcport->d_id.b.domain; | |
1773 | els_iocb->control_flags = 0; | |
1774 | els_iocb->rx_byte_count = | |
1775 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
1776 | els_iocb->tx_byte_count = | |
1777 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
1778 | ||
1779 | els_iocb->tx_address[0] = cpu_to_le32(LSD(sg_dma_address | |
1780 | (bsg_job->request_payload.sg_list))); | |
1781 | els_iocb->tx_address[1] = cpu_to_le32(MSD(sg_dma_address | |
1782 | (bsg_job->request_payload.sg_list))); | |
1783 | els_iocb->tx_len = cpu_to_le32(sg_dma_len | |
1784 | (bsg_job->request_payload.sg_list)); | |
1785 | ||
1786 | els_iocb->rx_address[0] = cpu_to_le32(LSD(sg_dma_address | |
1787 | (bsg_job->reply_payload.sg_list))); | |
1788 | els_iocb->rx_address[1] = cpu_to_le32(MSD(sg_dma_address | |
1789 | (bsg_job->reply_payload.sg_list))); | |
1790 | els_iocb->rx_len = cpu_to_le32(sg_dma_len | |
1791 | (bsg_job->reply_payload.sg_list)); | |
1792 | } | |
1793 | ||
9bc4f4fb HZ |
1794 | static void |
1795 | qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb) | |
1796 | { | |
1797 | uint16_t avail_dsds; | |
1798 | uint32_t *cur_dsd; | |
1799 | struct scatterlist *sg; | |
1800 | int index; | |
1801 | uint16_t tot_dsds; | |
1802 | scsi_qla_host_t *vha = sp->fcport->vha; | |
1803 | struct qla_hw_data *ha = vha->hw; | |
1804 | struct fc_bsg_job *bsg_job = ((struct srb_ctx *)sp->ctx)->u.bsg_job; | |
1805 | int loop_iterartion = 0; | |
1806 | int cont_iocb_prsnt = 0; | |
1807 | int entry_count = 1; | |
1808 | ||
1809 | memset(ct_iocb, 0, sizeof(ms_iocb_entry_t)); | |
1810 | ct_iocb->entry_type = CT_IOCB_TYPE; | |
1811 | ct_iocb->entry_status = 0; | |
1812 | ct_iocb->handle1 = sp->handle; | |
1813 | SET_TARGET_ID(ha, ct_iocb->loop_id, sp->fcport->loop_id); | |
1814 | ct_iocb->status = __constant_cpu_to_le16(0); | |
1815 | ct_iocb->control_flags = __constant_cpu_to_le16(0); | |
1816 | ct_iocb->timeout = 0; | |
1817 | ct_iocb->cmd_dsd_count = | |
1818 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
1819 | ct_iocb->total_dsd_count = | |
1820 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt + 1); | |
1821 | ct_iocb->req_bytecount = | |
1822 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
1823 | ct_iocb->rsp_bytecount = | |
1824 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
1825 | ||
1826 | ct_iocb->dseg_req_address[0] = cpu_to_le32(LSD(sg_dma_address | |
1827 | (bsg_job->request_payload.sg_list))); | |
1828 | ct_iocb->dseg_req_address[1] = cpu_to_le32(MSD(sg_dma_address | |
1829 | (bsg_job->request_payload.sg_list))); | |
1830 | ct_iocb->dseg_req_length = ct_iocb->req_bytecount; | |
1831 | ||
1832 | ct_iocb->dseg_rsp_address[0] = cpu_to_le32(LSD(sg_dma_address | |
1833 | (bsg_job->reply_payload.sg_list))); | |
1834 | ct_iocb->dseg_rsp_address[1] = cpu_to_le32(MSD(sg_dma_address | |
1835 | (bsg_job->reply_payload.sg_list))); | |
1836 | ct_iocb->dseg_rsp_length = ct_iocb->rsp_bytecount; | |
1837 | ||
1838 | avail_dsds = 1; | |
1839 | cur_dsd = (uint32_t *)ct_iocb->dseg_rsp_address; | |
1840 | index = 0; | |
1841 | tot_dsds = bsg_job->reply_payload.sg_cnt; | |
1842 | ||
1843 | for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) { | |
1844 | dma_addr_t sle_dma; | |
1845 | cont_a64_entry_t *cont_pkt; | |
1846 | ||
1847 | /* Allocate additional continuation packets? */ | |
1848 | if (avail_dsds == 0) { | |
1849 | /* | |
1850 | * Five DSDs are available in the Cont. | |
1851 | * Type 1 IOCB. | |
1852 | */ | |
1853 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha); | |
1854 | cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; | |
1855 | avail_dsds = 5; | |
1856 | cont_iocb_prsnt = 1; | |
1857 | entry_count++; | |
1858 | } | |
1859 | ||
1860 | sle_dma = sg_dma_address(sg); | |
1861 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
1862 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
1863 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
1864 | loop_iterartion++; | |
1865 | avail_dsds--; | |
1866 | } | |
1867 | ct_iocb->entry_count = entry_count; | |
1868 | } | |
1869 | ||
9a069e19 GM |
1870 | static void |
1871 | qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb) | |
1872 | { | |
1873 | uint16_t avail_dsds; | |
1874 | uint32_t *cur_dsd; | |
1875 | struct scatterlist *sg; | |
1876 | int index; | |
1877 | uint16_t tot_dsds; | |
1878 | scsi_qla_host_t *vha = sp->fcport->vha; | |
4916392b | 1879 | struct fc_bsg_job *bsg_job = ((struct srb_ctx *)sp->ctx)->u.bsg_job; |
9a069e19 GM |
1880 | int loop_iterartion = 0; |
1881 | int cont_iocb_prsnt = 0; | |
1882 | int entry_count = 1; | |
1883 | ||
1884 | ct_iocb->entry_type = CT_IOCB_TYPE; | |
1885 | ct_iocb->entry_status = 0; | |
1886 | ct_iocb->sys_define = 0; | |
1887 | ct_iocb->handle = sp->handle; | |
1888 | ||
1889 | ct_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1890 | ct_iocb->vp_index = sp->fcport->vp_idx; | |
1891 | ct_iocb->comp_status = __constant_cpu_to_le16(0); | |
1892 | ||
1893 | ct_iocb->cmd_dsd_count = | |
1894 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
1895 | ct_iocb->timeout = 0; | |
1896 | ct_iocb->rsp_dsd_count = | |
1897 | __constant_cpu_to_le16(bsg_job->reply_payload.sg_cnt); | |
1898 | ct_iocb->rsp_byte_count = | |
1899 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
1900 | ct_iocb->cmd_byte_count = | |
1901 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
1902 | ct_iocb->dseg_0_address[0] = cpu_to_le32(LSD(sg_dma_address | |
1903 | (bsg_job->request_payload.sg_list))); | |
1904 | ct_iocb->dseg_0_address[1] = cpu_to_le32(MSD(sg_dma_address | |
1905 | (bsg_job->request_payload.sg_list))); | |
1906 | ct_iocb->dseg_0_len = cpu_to_le32(sg_dma_len | |
1907 | (bsg_job->request_payload.sg_list)); | |
1908 | ||
1909 | avail_dsds = 1; | |
1910 | cur_dsd = (uint32_t *)ct_iocb->dseg_1_address; | |
1911 | index = 0; | |
1912 | tot_dsds = bsg_job->reply_payload.sg_cnt; | |
1913 | ||
1914 | for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) { | |
1915 | dma_addr_t sle_dma; | |
1916 | cont_a64_entry_t *cont_pkt; | |
1917 | ||
1918 | /* Allocate additional continuation packets? */ | |
1919 | if (avail_dsds == 0) { | |
1920 | /* | |
1921 | * Five DSDs are available in the Cont. | |
1922 | * Type 1 IOCB. | |
1923 | */ | |
1924 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha); | |
1925 | cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; | |
1926 | avail_dsds = 5; | |
1927 | cont_iocb_prsnt = 1; | |
1928 | entry_count++; | |
1929 | } | |
1930 | ||
1931 | sle_dma = sg_dma_address(sg); | |
1932 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
1933 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
1934 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
1935 | loop_iterartion++; | |
1936 | avail_dsds--; | |
1937 | } | |
1938 | ct_iocb->entry_count = entry_count; | |
1939 | } | |
1940 | ||
ac280b67 AV |
1941 | int |
1942 | qla2x00_start_sp(srb_t *sp) | |
1943 | { | |
1944 | int rval; | |
1945 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
1946 | void *pkt; | |
1947 | struct srb_ctx *ctx = sp->ctx; | |
1948 | unsigned long flags; | |
1949 | ||
1950 | rval = QLA_FUNCTION_FAILED; | |
1951 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
d94d10e7 | 1952 | pkt = qla2x00_alloc_iocbs(sp->fcport->vha, sp); |
ac280b67 AV |
1953 | if (!pkt) |
1954 | goto done; | |
1955 | ||
1956 | rval = QLA_SUCCESS; | |
1957 | switch (ctx->type) { | |
1958 | case SRB_LOGIN_CMD: | |
1959 | IS_FWI2_CAPABLE(ha) ? | |
5ff1d584 | 1960 | qla24xx_login_iocb(sp, pkt) : |
ac280b67 AV |
1961 | qla2x00_login_iocb(sp, pkt); |
1962 | break; | |
1963 | case SRB_LOGOUT_CMD: | |
1964 | IS_FWI2_CAPABLE(ha) ? | |
5ff1d584 | 1965 | qla24xx_logout_iocb(sp, pkt) : |
ac280b67 AV |
1966 | qla2x00_logout_iocb(sp, pkt); |
1967 | break; | |
9a069e19 GM |
1968 | case SRB_ELS_CMD_RPT: |
1969 | case SRB_ELS_CMD_HST: | |
1970 | qla24xx_els_iocb(sp, pkt); | |
1971 | break; | |
1972 | case SRB_CT_CMD: | |
9bc4f4fb HZ |
1973 | IS_FWI2_CAPABLE(ha) ? |
1974 | qla24xx_ct_iocb(sp, pkt) : | |
1975 | qla2x00_ct_iocb(sp, pkt); | |
9a069e19 | 1976 | break; |
5ff1d584 AV |
1977 | case SRB_ADISC_CMD: |
1978 | IS_FWI2_CAPABLE(ha) ? | |
1979 | qla24xx_adisc_iocb(sp, pkt) : | |
1980 | qla2x00_adisc_iocb(sp, pkt); | |
1981 | break; | |
3822263e MI |
1982 | case SRB_TM_CMD: |
1983 | qla24xx_tm_iocb(sp, pkt); | |
1984 | break; | |
ac280b67 AV |
1985 | default: |
1986 | break; | |
1987 | } | |
1988 | ||
1989 | wmb(); | |
1990 | qla2x00_start_iocbs(sp); | |
1991 | done: | |
1992 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
1993 | return rval; | |
1994 | } |