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Commit | Line | Data |
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fa90c54f AV |
1 | /* |
2 | * QLogic Fibre Channel HBA Driver | |
07e264b7 | 3 | * Copyright (c) 2003-2011 QLogic Corporation |
1da177e4 | 4 | * |
fa90c54f AV |
5 | * See LICENSE.qla2xxx for copyright and licensing details. |
6 | */ | |
1da177e4 LT |
7 | #include "qla_def.h" |
8 | ||
9 | #include <linux/blkdev.h> | |
10 | #include <linux/delay.h> | |
11 | ||
12 | #include <scsi/scsi_tcq.h> | |
13 | ||
73208dfd | 14 | static void qla2x00_isp_cmd(struct scsi_qla_host *, struct req_que *); |
1da177e4 | 15 | |
59e0b8b0 | 16 | static void qla25xx_set_que(srb_t *, struct rsp_que **); |
1da177e4 LT |
17 | /** |
18 | * qla2x00_get_cmd_direction() - Determine control_flag data direction. | |
19 | * @cmd: SCSI command | |
20 | * | |
21 | * Returns the proper CF_* direction based on CDB. | |
22 | */ | |
23 | static inline uint16_t | |
49fd462a | 24 | qla2x00_get_cmd_direction(srb_t *sp) |
1da177e4 LT |
25 | { |
26 | uint16_t cflags; | |
27 | ||
28 | cflags = 0; | |
29 | ||
30 | /* Set transfer direction */ | |
49fd462a | 31 | if (sp->cmd->sc_data_direction == DMA_TO_DEVICE) { |
1da177e4 | 32 | cflags = CF_WRITE; |
e315cd28 | 33 | sp->fcport->vha->hw->qla_stats.output_bytes += |
49fd462a HZ |
34 | scsi_bufflen(sp->cmd); |
35 | } else if (sp->cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
1da177e4 | 36 | cflags = CF_READ; |
e315cd28 | 37 | sp->fcport->vha->hw->qla_stats.input_bytes += |
49fd462a HZ |
38 | scsi_bufflen(sp->cmd); |
39 | } | |
1da177e4 LT |
40 | return (cflags); |
41 | } | |
42 | ||
43 | /** | |
44 | * qla2x00_calc_iocbs_32() - Determine number of Command Type 2 and | |
45 | * Continuation Type 0 IOCBs to allocate. | |
46 | * | |
47 | * @dsds: number of data segment decriptors needed | |
48 | * | |
49 | * Returns the number of IOCB entries needed to store @dsds. | |
50 | */ | |
51 | uint16_t | |
52 | qla2x00_calc_iocbs_32(uint16_t dsds) | |
53 | { | |
54 | uint16_t iocbs; | |
55 | ||
56 | iocbs = 1; | |
57 | if (dsds > 3) { | |
58 | iocbs += (dsds - 3) / 7; | |
59 | if ((dsds - 3) % 7) | |
60 | iocbs++; | |
61 | } | |
62 | return (iocbs); | |
63 | } | |
64 | ||
65 | /** | |
66 | * qla2x00_calc_iocbs_64() - Determine number of Command Type 3 and | |
67 | * Continuation Type 1 IOCBs to allocate. | |
68 | * | |
69 | * @dsds: number of data segment decriptors needed | |
70 | * | |
71 | * Returns the number of IOCB entries needed to store @dsds. | |
72 | */ | |
73 | uint16_t | |
74 | qla2x00_calc_iocbs_64(uint16_t dsds) | |
75 | { | |
76 | uint16_t iocbs; | |
77 | ||
78 | iocbs = 1; | |
79 | if (dsds > 2) { | |
80 | iocbs += (dsds - 2) / 5; | |
81 | if ((dsds - 2) % 5) | |
82 | iocbs++; | |
83 | } | |
84 | return (iocbs); | |
85 | } | |
86 | ||
87 | /** | |
88 | * qla2x00_prep_cont_type0_iocb() - Initialize a Continuation Type 0 IOCB. | |
89 | * @ha: HA context | |
90 | * | |
91 | * Returns a pointer to the Continuation Type 0 IOCB packet. | |
92 | */ | |
93 | static inline cont_entry_t * | |
67c2e93a | 94 | qla2x00_prep_cont_type0_iocb(struct scsi_qla_host *vha) |
1da177e4 LT |
95 | { |
96 | cont_entry_t *cont_pkt; | |
67c2e93a | 97 | struct req_que *req = vha->req; |
1da177e4 | 98 | /* Adjust ring index. */ |
e315cd28 AC |
99 | req->ring_index++; |
100 | if (req->ring_index == req->length) { | |
101 | req->ring_index = 0; | |
102 | req->ring_ptr = req->ring; | |
1da177e4 | 103 | } else { |
e315cd28 | 104 | req->ring_ptr++; |
1da177e4 LT |
105 | } |
106 | ||
e315cd28 | 107 | cont_pkt = (cont_entry_t *)req->ring_ptr; |
1da177e4 LT |
108 | |
109 | /* Load packet defaults. */ | |
110 | *((uint32_t *)(&cont_pkt->entry_type)) = | |
111 | __constant_cpu_to_le32(CONTINUE_TYPE); | |
112 | ||
113 | return (cont_pkt); | |
114 | } | |
115 | ||
116 | /** | |
117 | * qla2x00_prep_cont_type1_iocb() - Initialize a Continuation Type 1 IOCB. | |
118 | * @ha: HA context | |
119 | * | |
120 | * Returns a pointer to the continuation type 1 IOCB packet. | |
121 | */ | |
122 | static inline cont_a64_entry_t * | |
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) { | |
7c3df132 SK |
153 | ql_dbg(ql_dbg_io, sp->fcport->vha, 0x3007, |
154 | "Unsupported guard: %d for cmd=%p.\n", guard, sp->cmd); | |
bad75002 AE |
155 | return 0; |
156 | } | |
157 | ||
158 | /* We always use DIFF Bundling for best performance */ | |
159 | *fw_prot_opts = 0; | |
160 | ||
161 | /* Translate SCSI opcode to a protection opcode */ | |
162 | switch (scsi_get_prot_op(sp->cmd)) { | |
163 | case SCSI_PROT_READ_STRIP: | |
164 | *fw_prot_opts |= PO_MODE_DIF_REMOVE; | |
165 | break; | |
166 | case SCSI_PROT_WRITE_INSERT: | |
167 | *fw_prot_opts |= PO_MODE_DIF_INSERT; | |
168 | break; | |
169 | case SCSI_PROT_READ_INSERT: | |
170 | *fw_prot_opts |= PO_MODE_DIF_INSERT; | |
171 | break; | |
172 | case SCSI_PROT_WRITE_STRIP: | |
173 | *fw_prot_opts |= PO_MODE_DIF_REMOVE; | |
174 | break; | |
175 | case SCSI_PROT_READ_PASS: | |
176 | *fw_prot_opts |= PO_MODE_DIF_PASS; | |
177 | break; | |
178 | case SCSI_PROT_WRITE_PASS: | |
179 | *fw_prot_opts |= PO_MODE_DIF_PASS; | |
180 | break; | |
181 | default: /* Normal Request */ | |
182 | *fw_prot_opts |= PO_MODE_DIF_PASS; | |
183 | break; | |
184 | } | |
185 | ||
186 | return scsi_prot_sg_count(sp->cmd); | |
187 | } | |
188 | ||
189 | /* | |
1da177e4 LT |
190 | * qla2x00_build_scsi_iocbs_32() - Build IOCB command utilizing 32bit |
191 | * capable IOCB types. | |
192 | * | |
193 | * @sp: SRB command to process | |
194 | * @cmd_pkt: Command type 2 IOCB | |
195 | * @tot_dsds: Total number of segments to transfer | |
196 | */ | |
197 | void qla2x00_build_scsi_iocbs_32(srb_t *sp, cmd_entry_t *cmd_pkt, | |
198 | uint16_t tot_dsds) | |
199 | { | |
200 | uint16_t avail_dsds; | |
201 | uint32_t *cur_dsd; | |
e315cd28 | 202 | scsi_qla_host_t *vha; |
1da177e4 | 203 | struct scsi_cmnd *cmd; |
385d70b4 FT |
204 | struct scatterlist *sg; |
205 | int i; | |
1da177e4 LT |
206 | |
207 | cmd = sp->cmd; | |
208 | ||
209 | /* Update entry type to indicate Command Type 2 IOCB */ | |
210 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
211 | __constant_cpu_to_le32(COMMAND_TYPE); | |
212 | ||
213 | /* No data transfer */ | |
385d70b4 | 214 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { |
1da177e4 LT |
215 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
216 | return; | |
217 | } | |
218 | ||
444786d7 | 219 | vha = sp->fcport->vha; |
49fd462a | 220 | cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); |
1da177e4 LT |
221 | |
222 | /* Three DSDs are available in the Command Type 2 IOCB */ | |
223 | avail_dsds = 3; | |
224 | cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address; | |
225 | ||
226 | /* Load data segments */ | |
385d70b4 FT |
227 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { |
228 | cont_entry_t *cont_pkt; | |
229 | ||
230 | /* Allocate additional continuation packets? */ | |
231 | if (avail_dsds == 0) { | |
232 | /* | |
233 | * Seven DSDs are available in the Continuation | |
234 | * Type 0 IOCB. | |
235 | */ | |
67c2e93a | 236 | cont_pkt = qla2x00_prep_cont_type0_iocb(vha); |
385d70b4 FT |
237 | cur_dsd = (uint32_t *)&cont_pkt->dseg_0_address; |
238 | avail_dsds = 7; | |
1da177e4 | 239 | } |
385d70b4 FT |
240 | |
241 | *cur_dsd++ = cpu_to_le32(sg_dma_address(sg)); | |
242 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
243 | avail_dsds--; | |
1da177e4 LT |
244 | } |
245 | } | |
246 | ||
247 | /** | |
248 | * qla2x00_build_scsi_iocbs_64() - Build IOCB command utilizing 64bit | |
249 | * capable IOCB types. | |
250 | * | |
251 | * @sp: SRB command to process | |
252 | * @cmd_pkt: Command type 3 IOCB | |
253 | * @tot_dsds: Total number of segments to transfer | |
254 | */ | |
255 | void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt, | |
256 | uint16_t tot_dsds) | |
257 | { | |
258 | uint16_t avail_dsds; | |
259 | uint32_t *cur_dsd; | |
e315cd28 | 260 | scsi_qla_host_t *vha; |
1da177e4 | 261 | struct scsi_cmnd *cmd; |
385d70b4 FT |
262 | struct scatterlist *sg; |
263 | int i; | |
1da177e4 LT |
264 | |
265 | cmd = sp->cmd; | |
266 | ||
267 | /* Update entry type to indicate Command Type 3 IOCB */ | |
268 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
269 | __constant_cpu_to_le32(COMMAND_A64_TYPE); | |
270 | ||
271 | /* No data transfer */ | |
385d70b4 | 272 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { |
1da177e4 LT |
273 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
274 | return; | |
275 | } | |
276 | ||
444786d7 | 277 | vha = sp->fcport->vha; |
49fd462a | 278 | cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); |
1da177e4 LT |
279 | |
280 | /* Two DSDs are available in the Command Type 3 IOCB */ | |
281 | avail_dsds = 2; | |
282 | cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address; | |
283 | ||
284 | /* Load data segments */ | |
385d70b4 FT |
285 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { |
286 | dma_addr_t sle_dma; | |
287 | cont_a64_entry_t *cont_pkt; | |
288 | ||
289 | /* Allocate additional continuation packets? */ | |
290 | if (avail_dsds == 0) { | |
291 | /* | |
292 | * Five DSDs are available in the Continuation | |
293 | * Type 1 IOCB. | |
294 | */ | |
67c2e93a | 295 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha); |
385d70b4 FT |
296 | cur_dsd = (uint32_t *)cont_pkt->dseg_0_address; |
297 | avail_dsds = 5; | |
1da177e4 | 298 | } |
385d70b4 FT |
299 | |
300 | sle_dma = sg_dma_address(sg); | |
301 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
302 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
303 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
304 | avail_dsds--; | |
1da177e4 LT |
305 | } |
306 | } | |
307 | ||
308 | /** | |
309 | * qla2x00_start_scsi() - Send a SCSI command to the ISP | |
310 | * @sp: command to send to the ISP | |
311 | * | |
cc3ef7bc | 312 | * Returns non-zero if a failure occurred, else zero. |
1da177e4 LT |
313 | */ |
314 | int | |
315 | qla2x00_start_scsi(srb_t *sp) | |
316 | { | |
385d70b4 | 317 | int ret, nseg; |
1da177e4 | 318 | unsigned long flags; |
e315cd28 | 319 | scsi_qla_host_t *vha; |
1da177e4 LT |
320 | struct scsi_cmnd *cmd; |
321 | uint32_t *clr_ptr; | |
322 | uint32_t index; | |
323 | uint32_t handle; | |
324 | cmd_entry_t *cmd_pkt; | |
1da177e4 LT |
325 | uint16_t cnt; |
326 | uint16_t req_cnt; | |
327 | uint16_t tot_dsds; | |
3d71644c | 328 | struct device_reg_2xxx __iomem *reg; |
e315cd28 AC |
329 | struct qla_hw_data *ha; |
330 | struct req_que *req; | |
73208dfd | 331 | struct rsp_que *rsp; |
ff2fc42e | 332 | char tag[2]; |
1da177e4 LT |
333 | |
334 | /* Setup device pointers. */ | |
335 | ret = 0; | |
444786d7 | 336 | vha = sp->fcport->vha; |
e315cd28 | 337 | ha = vha->hw; |
3d71644c | 338 | reg = &ha->iobase->isp; |
1da177e4 | 339 | cmd = sp->cmd; |
73208dfd AC |
340 | req = ha->req_q_map[0]; |
341 | rsp = ha->rsp_q_map[0]; | |
83021920 AV |
342 | /* So we know we haven't pci_map'ed anything yet */ |
343 | tot_dsds = 0; | |
1da177e4 LT |
344 | |
345 | /* Send marker if required */ | |
e315cd28 | 346 | if (vha->marker_needed != 0) { |
7c3df132 SK |
347 | if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != |
348 | QLA_SUCCESS) { | |
1da177e4 | 349 | return (QLA_FUNCTION_FAILED); |
7c3df132 | 350 | } |
e315cd28 | 351 | vha->marker_needed = 0; |
1da177e4 LT |
352 | } |
353 | ||
354 | /* Acquire ring specific lock */ | |
c9c5ced9 | 355 | spin_lock_irqsave(&ha->hardware_lock, flags); |
1da177e4 LT |
356 | |
357 | /* Check for room in outstanding command list. */ | |
e315cd28 | 358 | handle = req->current_outstanding_cmd; |
1da177e4 LT |
359 | for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { |
360 | handle++; | |
361 | if (handle == MAX_OUTSTANDING_COMMANDS) | |
362 | handle = 1; | |
e315cd28 | 363 | if (!req->outstanding_cmds[handle]) |
1da177e4 LT |
364 | break; |
365 | } | |
366 | if (index == MAX_OUTSTANDING_COMMANDS) | |
367 | goto queuing_error; | |
368 | ||
83021920 | 369 | /* Map the sg table so we have an accurate count of sg entries needed */ |
2c3dfe3f SJ |
370 | if (scsi_sg_count(cmd)) { |
371 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
372 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
373 | if (unlikely(!nseg)) | |
374 | goto queuing_error; | |
375 | } else | |
376 | nseg = 0; | |
377 | ||
385d70b4 | 378 | tot_dsds = nseg; |
83021920 | 379 | |
1da177e4 | 380 | /* Calculate the number of request entries needed. */ |
fd34f556 | 381 | req_cnt = ha->isp_ops->calc_req_entries(tot_dsds); |
e315cd28 | 382 | if (req->cnt < (req_cnt + 2)) { |
1da177e4 | 383 | cnt = RD_REG_WORD_RELAXED(ISP_REQ_Q_OUT(ha, reg)); |
e315cd28 AC |
384 | if (req->ring_index < cnt) |
385 | req->cnt = cnt - req->ring_index; | |
1da177e4 | 386 | else |
e315cd28 AC |
387 | req->cnt = req->length - |
388 | (req->ring_index - cnt); | |
1da177e4 | 389 | } |
e315cd28 | 390 | if (req->cnt < (req_cnt + 2)) |
1da177e4 LT |
391 | goto queuing_error; |
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; |
1da177e4 | 397 | sp->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 AV |
407 | /* Set target ID and LUN number*/ |
408 | SET_TARGET_ID(ha, cmd_pkt->target, sp->fcport->loop_id); | |
409 | cmd_pkt->lun = cpu_to_le16(sp->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 | ||
471 | /** | |
472 | * qla2x00_marker() - Send a marker IOCB to the firmware. | |
473 | * @ha: HA context | |
474 | * @loop_id: loop ID | |
475 | * @lun: LUN | |
476 | * @type: marker modifier | |
477 | * | |
478 | * Can be called from both normal and interrupt context. | |
479 | * | |
cc3ef7bc | 480 | * Returns non-zero if a failure occurred, else zero. |
1da177e4 | 481 | */ |
3dbe756a | 482 | static int |
73208dfd AC |
483 | __qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req, |
484 | struct rsp_que *rsp, uint16_t loop_id, | |
485 | uint16_t lun, uint8_t type) | |
1da177e4 | 486 | { |
2b6c0cee AV |
487 | mrk_entry_t *mrk; |
488 | struct mrk_entry_24xx *mrk24; | |
e315cd28 AC |
489 | struct qla_hw_data *ha = vha->hw; |
490 | scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); | |
1da177e4 | 491 | |
2b6c0cee | 492 | mrk24 = NULL; |
d94d10e7 | 493 | mrk = (mrk_entry_t *)qla2x00_alloc_iocbs(vha, 0); |
2b6c0cee | 494 | if (mrk == NULL) { |
7c3df132 SK |
495 | ql_log(ql_log_warn, base_vha, 0x3026, |
496 | "Failed to allocate Marker IOCB.\n"); | |
1da177e4 LT |
497 | |
498 | return (QLA_FUNCTION_FAILED); | |
499 | } | |
500 | ||
2b6c0cee AV |
501 | mrk->entry_type = MARKER_TYPE; |
502 | mrk->modifier = type; | |
1da177e4 | 503 | if (type != MK_SYNC_ALL) { |
e428924c | 504 | if (IS_FWI2_CAPABLE(ha)) { |
2b6c0cee AV |
505 | mrk24 = (struct mrk_entry_24xx *) mrk; |
506 | mrk24->nport_handle = cpu_to_le16(loop_id); | |
507 | mrk24->lun[1] = LSB(lun); | |
508 | mrk24->lun[2] = MSB(lun); | |
b797b6de | 509 | host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun)); |
e315cd28 | 510 | mrk24->vp_index = vha->vp_idx; |
2afa19a9 | 511 | mrk24->handle = MAKE_HANDLE(req->id, mrk24->handle); |
2b6c0cee AV |
512 | } else { |
513 | SET_TARGET_ID(ha, mrk->target, loop_id); | |
514 | mrk->lun = cpu_to_le16(lun); | |
515 | } | |
1da177e4 LT |
516 | } |
517 | wmb(); | |
518 | ||
73208dfd | 519 | qla2x00_isp_cmd(vha, req); |
1da177e4 LT |
520 | |
521 | return (QLA_SUCCESS); | |
522 | } | |
523 | ||
fa2a1ce5 | 524 | int |
73208dfd AC |
525 | qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req, |
526 | struct rsp_que *rsp, uint16_t loop_id, uint16_t lun, | |
527 | uint8_t type) | |
1da177e4 LT |
528 | { |
529 | int ret; | |
530 | unsigned long flags = 0; | |
531 | ||
73208dfd AC |
532 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); |
533 | ret = __qla2x00_marker(vha, req, rsp, loop_id, lun, type); | |
534 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); | |
1da177e4 LT |
535 | |
536 | return (ret); | |
537 | } | |
538 | ||
1da177e4 LT |
539 | /** |
540 | * qla2x00_isp_cmd() - Modify the request ring pointer. | |
541 | * @ha: HA context | |
542 | * | |
543 | * Note: The caller must hold the hardware lock before calling this routine. | |
544 | */ | |
413975a0 | 545 | static void |
73208dfd | 546 | qla2x00_isp_cmd(struct scsi_qla_host *vha, struct req_que *req) |
1da177e4 | 547 | { |
e315cd28 | 548 | struct qla_hw_data *ha = vha->hw; |
73208dfd | 549 | device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id); |
17d98630 | 550 | struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp; |
1da177e4 | 551 | |
7c3df132 SK |
552 | ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x302d, |
553 | "IOCB data:\n"); | |
554 | ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302e, | |
555 | (uint8_t *)req->ring_ptr, REQUEST_ENTRY_SIZE); | |
1da177e4 LT |
556 | |
557 | /* Adjust ring index. */ | |
e315cd28 AC |
558 | req->ring_index++; |
559 | if (req->ring_index == req->length) { | |
560 | req->ring_index = 0; | |
561 | req->ring_ptr = req->ring; | |
1da177e4 | 562 | } else |
e315cd28 | 563 | req->ring_ptr++; |
1da177e4 LT |
564 | |
565 | /* Set chip new ring index. */ | |
a9083016 GM |
566 | if (IS_QLA82XX(ha)) { |
567 | uint32_t dbval = 0x04 | (ha->portnum << 5); | |
568 | ||
569 | /* write, read and verify logic */ | |
570 | dbval = dbval | (req->id << 8) | (req->ring_index << 16); | |
571 | if (ql2xdbwr) | |
572 | qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval); | |
573 | else { | |
574 | WRT_REG_DWORD( | |
575 | (unsigned long __iomem *)ha->nxdb_wr_ptr, | |
576 | dbval); | |
577 | wmb(); | |
578 | while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) { | |
579 | WRT_REG_DWORD((unsigned long __iomem *) | |
580 | ha->nxdb_wr_ptr, dbval); | |
581 | wmb(); | |
582 | } | |
583 | } | |
584 | } else if (ha->mqenable) { | |
585 | /* Set chip new ring index. */ | |
17d98630 AC |
586 | WRT_REG_DWORD(®->isp25mq.req_q_in, req->ring_index); |
587 | RD_REG_DWORD(&ioreg->hccr); | |
a9083016 | 588 | } else { |
73208dfd AC |
589 | if (IS_FWI2_CAPABLE(ha)) { |
590 | WRT_REG_DWORD(®->isp24.req_q_in, req->ring_index); | |
591 | RD_REG_DWORD_RELAXED(®->isp24.req_q_in); | |
592 | } else { | |
593 | WRT_REG_WORD(ISP_REQ_Q_IN(ha, ®->isp), | |
594 | req->ring_index); | |
595 | RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, ®->isp)); | |
596 | } | |
2b6c0cee AV |
597 | } |
598 | ||
599 | } | |
600 | ||
601 | /** | |
602 | * qla24xx_calc_iocbs() - Determine number of Command Type 3 and | |
603 | * Continuation Type 1 IOCBs to allocate. | |
604 | * | |
605 | * @dsds: number of data segment decriptors needed | |
606 | * | |
607 | * Returns the number of IOCB entries needed to store @dsds. | |
608 | */ | |
a9083016 | 609 | inline uint16_t |
7c3df132 | 610 | qla24xx_calc_iocbs(scsi_qla_host_t *vha, uint16_t dsds) |
2b6c0cee AV |
611 | { |
612 | uint16_t iocbs; | |
613 | ||
614 | iocbs = 1; | |
615 | if (dsds > 1) { | |
616 | iocbs += (dsds - 1) / 5; | |
617 | if ((dsds - 1) % 5) | |
618 | iocbs++; | |
619 | } | |
620 | return iocbs; | |
621 | } | |
622 | ||
623 | /** | |
624 | * qla24xx_build_scsi_iocbs() - Build IOCB command utilizing Command Type 7 | |
625 | * IOCB types. | |
626 | * | |
627 | * @sp: SRB command to process | |
628 | * @cmd_pkt: Command type 3 IOCB | |
629 | * @tot_dsds: Total number of segments to transfer | |
630 | */ | |
a9083016 | 631 | inline void |
2b6c0cee AV |
632 | qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt, |
633 | uint16_t tot_dsds) | |
634 | { | |
635 | uint16_t avail_dsds; | |
636 | uint32_t *cur_dsd; | |
e315cd28 | 637 | scsi_qla_host_t *vha; |
2b6c0cee | 638 | struct scsi_cmnd *cmd; |
385d70b4 FT |
639 | struct scatterlist *sg; |
640 | int i; | |
73208dfd | 641 | struct req_que *req; |
2b6c0cee AV |
642 | |
643 | cmd = sp->cmd; | |
644 | ||
645 | /* Update entry type to indicate Command Type 3 IOCB */ | |
646 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
647 | __constant_cpu_to_le32(COMMAND_TYPE_7); | |
648 | ||
649 | /* No data transfer */ | |
385d70b4 | 650 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { |
2b6c0cee AV |
651 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
652 | return; | |
653 | } | |
654 | ||
444786d7 | 655 | vha = sp->fcport->vha; |
67c2e93a | 656 | req = vha->req; |
2b6c0cee AV |
657 | |
658 | /* Set transfer direction */ | |
49fd462a | 659 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { |
2b6c0cee AV |
660 | cmd_pkt->task_mgmt_flags = |
661 | __constant_cpu_to_le16(TMF_WRITE_DATA); | |
e315cd28 | 662 | sp->fcport->vha->hw->qla_stats.output_bytes += |
49fd462a HZ |
663 | scsi_bufflen(sp->cmd); |
664 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
2b6c0cee AV |
665 | cmd_pkt->task_mgmt_flags = |
666 | __constant_cpu_to_le16(TMF_READ_DATA); | |
e315cd28 | 667 | sp->fcport->vha->hw->qla_stats.input_bytes += |
49fd462a HZ |
668 | scsi_bufflen(sp->cmd); |
669 | } | |
2b6c0cee AV |
670 | |
671 | /* One DSD is available in the Command Type 3 IOCB */ | |
672 | avail_dsds = 1; | |
673 | cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address; | |
674 | ||
675 | /* Load data segments */ | |
385d70b4 FT |
676 | |
677 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { | |
678 | dma_addr_t sle_dma; | |
679 | cont_a64_entry_t *cont_pkt; | |
680 | ||
681 | /* Allocate additional continuation packets? */ | |
682 | if (avail_dsds == 0) { | |
683 | /* | |
684 | * Five DSDs are available in the Continuation | |
685 | * Type 1 IOCB. | |
686 | */ | |
67c2e93a | 687 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha); |
385d70b4 FT |
688 | cur_dsd = (uint32_t *)cont_pkt->dseg_0_address; |
689 | avail_dsds = 5; | |
2b6c0cee | 690 | } |
385d70b4 FT |
691 | |
692 | sle_dma = sg_dma_address(sg); | |
693 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
694 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
695 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
696 | avail_dsds--; | |
2b6c0cee AV |
697 | } |
698 | } | |
699 | ||
bad75002 AE |
700 | struct fw_dif_context { |
701 | uint32_t ref_tag; | |
702 | uint16_t app_tag; | |
703 | uint8_t ref_tag_mask[4]; /* Validation/Replacement Mask*/ | |
704 | uint8_t app_tag_mask[2]; /* Validation/Replacement Mask*/ | |
705 | }; | |
706 | ||
707 | /* | |
708 | * qla24xx_set_t10dif_tags_from_cmd - Extract Ref and App tags from SCSI command | |
709 | * | |
710 | */ | |
711 | static inline void | |
712 | qla24xx_set_t10dif_tags(struct scsi_cmnd *cmd, struct fw_dif_context *pkt, | |
713 | unsigned int protcnt) | |
714 | { | |
715 | struct sd_dif_tuple *spt; | |
7c3df132 | 716 | scsi_qla_host_t *vha = shost_priv(cmd->device->host); |
bad75002 AE |
717 | unsigned char op = scsi_get_prot_op(cmd); |
718 | ||
719 | switch (scsi_get_prot_type(cmd)) { | |
bad75002 | 720 | case SCSI_PROT_DIF_TYPE0: |
8cb2049c AE |
721 | /* |
722 | * No check for ql2xenablehba_err_chk, as it would be an | |
723 | * I/O error if hba tag generation is not done. | |
724 | */ | |
725 | pkt->ref_tag = cpu_to_le32((uint32_t) | |
726 | (0xffffffff & scsi_get_lba(cmd))); | |
727 | pkt->ref_tag_mask[0] = 0xff; | |
728 | pkt->ref_tag_mask[1] = 0xff; | |
729 | pkt->ref_tag_mask[2] = 0xff; | |
730 | pkt->ref_tag_mask[3] = 0xff; | |
bad75002 AE |
731 | break; |
732 | ||
733 | /* | |
734 | * For TYPE 2 protection: 16 bit GUARD + 32 bit REF tag has to | |
735 | * match LBA in CDB + N | |
736 | */ | |
737 | case SCSI_PROT_DIF_TYPE2: | |
8cb2049c | 738 | if (!qla2x00_hba_err_chk_enabled(op)) |
0c470874 AE |
739 | break; |
740 | ||
741 | if (scsi_prot_sg_count(cmd)) { | |
742 | spt = page_address(sg_page(scsi_prot_sglist(cmd))) + | |
743 | scsi_prot_sglist(cmd)[0].offset; | |
744 | pkt->app_tag = swab32(spt->app_tag); | |
745 | pkt->app_tag_mask[0] = 0xff; | |
746 | pkt->app_tag_mask[1] = 0xff; | |
747 | } | |
748 | ||
749 | pkt->ref_tag = cpu_to_le32((uint32_t) | |
750 | (0xffffffff & scsi_get_lba(cmd))); | |
751 | ||
752 | /* enable ALL bytes of the ref tag */ | |
753 | pkt->ref_tag_mask[0] = 0xff; | |
754 | pkt->ref_tag_mask[1] = 0xff; | |
755 | pkt->ref_tag_mask[2] = 0xff; | |
756 | pkt->ref_tag_mask[3] = 0xff; | |
bad75002 AE |
757 | break; |
758 | ||
759 | /* For Type 3 protection: 16 bit GUARD only */ | |
760 | case SCSI_PROT_DIF_TYPE3: | |
761 | pkt->ref_tag_mask[0] = pkt->ref_tag_mask[1] = | |
762 | pkt->ref_tag_mask[2] = pkt->ref_tag_mask[3] = | |
763 | 0x00; | |
764 | break; | |
765 | ||
766 | /* | |
767 | * For TYpe 1 protection: 16 bit GUARD tag, 32 bit REF tag, and | |
768 | * 16 bit app tag. | |
769 | */ | |
770 | case SCSI_PROT_DIF_TYPE1: | |
8cb2049c | 771 | if (!qla2x00_hba_err_chk_enabled(op)) |
bad75002 AE |
772 | break; |
773 | ||
774 | if (protcnt && (op == SCSI_PROT_WRITE_STRIP || | |
775 | op == SCSI_PROT_WRITE_PASS)) { | |
776 | spt = page_address(sg_page(scsi_prot_sglist(cmd))) + | |
777 | scsi_prot_sglist(cmd)[0].offset; | |
7c3df132 SK |
778 | ql_dbg(ql_dbg_io, vha, 0x3008, |
779 | "LBA from user %p, lba = 0x%x for cmd=%p.\n", | |
780 | spt, (int)spt->ref_tag, cmd); | |
bad75002 AE |
781 | pkt->ref_tag = swab32(spt->ref_tag); |
782 | pkt->app_tag_mask[0] = 0x0; | |
783 | pkt->app_tag_mask[1] = 0x0; | |
784 | } else { | |
785 | pkt->ref_tag = cpu_to_le32((uint32_t) | |
786 | (0xffffffff & scsi_get_lba(cmd))); | |
787 | pkt->app_tag = __constant_cpu_to_le16(0); | |
788 | pkt->app_tag_mask[0] = 0x0; | |
789 | pkt->app_tag_mask[1] = 0x0; | |
790 | } | |
791 | /* enable ALL bytes of the ref tag */ | |
792 | pkt->ref_tag_mask[0] = 0xff; | |
793 | pkt->ref_tag_mask[1] = 0xff; | |
794 | pkt->ref_tag_mask[2] = 0xff; | |
795 | pkt->ref_tag_mask[3] = 0xff; | |
796 | break; | |
797 | } | |
798 | ||
7c3df132 SK |
799 | ql_dbg(ql_dbg_io, vha, 0x3009, |
800 | "Setting protection Tags: (BIG) ref tag = 0x%x, app tag = 0x%x, " | |
801 | "prot SG count %d, cmd lba 0x%x, prot_type=%u cmd=%p.\n", | |
802 | pkt->ref_tag, pkt->app_tag, protcnt, (int)scsi_get_lba(cmd), | |
803 | scsi_get_prot_type(cmd), cmd); | |
bad75002 AE |
804 | } |
805 | ||
8cb2049c AE |
806 | struct qla2_sgx { |
807 | dma_addr_t dma_addr; /* OUT */ | |
808 | uint32_t dma_len; /* OUT */ | |
809 | ||
810 | uint32_t tot_bytes; /* IN */ | |
811 | struct scatterlist *cur_sg; /* IN */ | |
812 | ||
813 | /* for book keeping, bzero on initial invocation */ | |
814 | uint32_t bytes_consumed; | |
815 | uint32_t num_bytes; | |
816 | uint32_t tot_partial; | |
817 | ||
818 | /* for debugging */ | |
819 | uint32_t num_sg; | |
820 | srb_t *sp; | |
821 | }; | |
822 | ||
823 | static int | |
824 | qla24xx_get_one_block_sg(uint32_t blk_sz, struct qla2_sgx *sgx, | |
825 | uint32_t *partial) | |
826 | { | |
827 | struct scatterlist *sg; | |
828 | uint32_t cumulative_partial, sg_len; | |
829 | dma_addr_t sg_dma_addr; | |
830 | ||
831 | if (sgx->num_bytes == sgx->tot_bytes) | |
832 | return 0; | |
833 | ||
834 | sg = sgx->cur_sg; | |
835 | cumulative_partial = sgx->tot_partial; | |
836 | ||
837 | sg_dma_addr = sg_dma_address(sg); | |
838 | sg_len = sg_dma_len(sg); | |
839 | ||
840 | sgx->dma_addr = sg_dma_addr + sgx->bytes_consumed; | |
841 | ||
842 | if ((cumulative_partial + (sg_len - sgx->bytes_consumed)) >= blk_sz) { | |
843 | sgx->dma_len = (blk_sz - cumulative_partial); | |
844 | sgx->tot_partial = 0; | |
845 | sgx->num_bytes += blk_sz; | |
846 | *partial = 0; | |
847 | } else { | |
848 | sgx->dma_len = sg_len - sgx->bytes_consumed; | |
849 | sgx->tot_partial += sgx->dma_len; | |
850 | *partial = 1; | |
851 | } | |
852 | ||
853 | sgx->bytes_consumed += sgx->dma_len; | |
854 | ||
855 | if (sg_len == sgx->bytes_consumed) { | |
856 | sg = sg_next(sg); | |
857 | sgx->num_sg++; | |
858 | sgx->cur_sg = sg; | |
859 | sgx->bytes_consumed = 0; | |
860 | } | |
861 | ||
862 | return 1; | |
863 | } | |
864 | ||
865 | static int | |
866 | qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data *ha, srb_t *sp, | |
867 | uint32_t *dsd, uint16_t tot_dsds) | |
868 | { | |
869 | void *next_dsd; | |
870 | uint8_t avail_dsds = 0; | |
871 | uint32_t dsd_list_len; | |
872 | struct dsd_dma *dsd_ptr; | |
873 | struct scatterlist *sg_prot; | |
874 | uint32_t *cur_dsd = dsd; | |
875 | uint16_t used_dsds = tot_dsds; | |
876 | ||
877 | uint32_t prot_int; | |
878 | uint32_t partial; | |
879 | struct qla2_sgx sgx; | |
880 | dma_addr_t sle_dma; | |
881 | uint32_t sle_dma_len, tot_prot_dma_len = 0; | |
882 | struct scsi_cmnd *cmd = sp->cmd; | |
883 | ||
884 | prot_int = cmd->device->sector_size; | |
885 | ||
886 | memset(&sgx, 0, sizeof(struct qla2_sgx)); | |
887 | sgx.tot_bytes = scsi_bufflen(sp->cmd); | |
888 | sgx.cur_sg = scsi_sglist(sp->cmd); | |
889 | sgx.sp = sp; | |
890 | ||
891 | sg_prot = scsi_prot_sglist(sp->cmd); | |
892 | ||
893 | while (qla24xx_get_one_block_sg(prot_int, &sgx, &partial)) { | |
894 | ||
895 | sle_dma = sgx.dma_addr; | |
896 | sle_dma_len = sgx.dma_len; | |
897 | alloc_and_fill: | |
898 | /* Allocate additional continuation packets? */ | |
899 | if (avail_dsds == 0) { | |
900 | avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? | |
901 | QLA_DSDS_PER_IOCB : used_dsds; | |
902 | dsd_list_len = (avail_dsds + 1) * 12; | |
903 | used_dsds -= avail_dsds; | |
904 | ||
905 | /* allocate tracking DS */ | |
906 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
907 | if (!dsd_ptr) | |
908 | return 1; | |
909 | ||
910 | /* allocate new list */ | |
911 | dsd_ptr->dsd_addr = next_dsd = | |
912 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, | |
913 | &dsd_ptr->dsd_list_dma); | |
914 | ||
915 | if (!next_dsd) { | |
916 | /* | |
917 | * Need to cleanup only this dsd_ptr, rest | |
918 | * will be done by sp_free_dma() | |
919 | */ | |
920 | kfree(dsd_ptr); | |
921 | return 1; | |
922 | } | |
923 | ||
924 | list_add_tail(&dsd_ptr->list, | |
925 | &((struct crc_context *)sp->ctx)->dsd_list); | |
926 | ||
927 | sp->flags |= SRB_CRC_CTX_DSD_VALID; | |
928 | ||
929 | /* add new list to cmd iocb or last list */ | |
930 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
931 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
932 | *cur_dsd++ = dsd_list_len; | |
933 | cur_dsd = (uint32_t *)next_dsd; | |
934 | } | |
935 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
936 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
937 | *cur_dsd++ = cpu_to_le32(sle_dma_len); | |
938 | avail_dsds--; | |
939 | ||
940 | if (partial == 0) { | |
941 | /* Got a full protection interval */ | |
942 | sle_dma = sg_dma_address(sg_prot) + tot_prot_dma_len; | |
943 | sle_dma_len = 8; | |
bad75002 | 944 | |
8cb2049c AE |
945 | tot_prot_dma_len += sle_dma_len; |
946 | if (tot_prot_dma_len == sg_dma_len(sg_prot)) { | |
947 | tot_prot_dma_len = 0; | |
948 | sg_prot = sg_next(sg_prot); | |
949 | } | |
950 | ||
951 | partial = 1; /* So as to not re-enter this block */ | |
952 | goto alloc_and_fill; | |
953 | } | |
954 | } | |
955 | /* Null termination */ | |
956 | *cur_dsd++ = 0; | |
957 | *cur_dsd++ = 0; | |
958 | *cur_dsd++ = 0; | |
959 | return 0; | |
960 | } | |
bad75002 AE |
961 | static int |
962 | qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, uint32_t *dsd, | |
963 | 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; | |
970 | uint32_t *cur_dsd = dsd; | |
971 | int i; | |
972 | uint16_t used_dsds = tot_dsds; | |
7c3df132 | 973 | scsi_qla_host_t *vha = shost_priv(sp->cmd->device->host); |
bad75002 AE |
974 | |
975 | uint8_t *cp; | |
976 | ||
977 | scsi_for_each_sg(sp->cmd, sg, tot_dsds, i) { | |
978 | dma_addr_t sle_dma; | |
979 | ||
980 | /* Allocate additional continuation packets? */ | |
981 | if (avail_dsds == 0) { | |
982 | avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? | |
983 | QLA_DSDS_PER_IOCB : used_dsds; | |
984 | dsd_list_len = (avail_dsds + 1) * 12; | |
985 | used_dsds -= avail_dsds; | |
986 | ||
987 | /* allocate tracking DS */ | |
988 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
989 | if (!dsd_ptr) | |
990 | return 1; | |
991 | ||
992 | /* allocate new list */ | |
993 | dsd_ptr->dsd_addr = next_dsd = | |
994 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, | |
995 | &dsd_ptr->dsd_list_dma); | |
996 | ||
997 | if (!next_dsd) { | |
998 | /* | |
999 | * Need to cleanup only this dsd_ptr, rest | |
1000 | * will be done by sp_free_dma() | |
1001 | */ | |
1002 | kfree(dsd_ptr); | |
1003 | return 1; | |
1004 | } | |
1005 | ||
1006 | list_add_tail(&dsd_ptr->list, | |
1007 | &((struct crc_context *)sp->ctx)->dsd_list); | |
1008 | ||
1009 | sp->flags |= SRB_CRC_CTX_DSD_VALID; | |
1010 | ||
1011 | /* add new list to cmd iocb or last list */ | |
1012 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
1013 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
1014 | *cur_dsd++ = dsd_list_len; | |
1015 | cur_dsd = (uint32_t *)next_dsd; | |
1016 | } | |
1017 | sle_dma = sg_dma_address(sg); | |
7c3df132 SK |
1018 | ql_dbg(ql_dbg_io, vha, 0x300a, |
1019 | "sg entry %d - addr=0x%x 0x%x, " "len=%d for cmd=%p.\n", | |
1020 | cur_dsd, i, LSD(sle_dma), MSD(sle_dma), sg_dma_len(sg), | |
1021 | sp->cmd); | |
bad75002 AE |
1022 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); |
1023 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
1024 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
1025 | avail_dsds--; | |
1026 | ||
1027 | if (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_PASS) { | |
1028 | cp = page_address(sg_page(sg)) + sg->offset; | |
7c3df132 SK |
1029 | ql_dbg(ql_dbg_io, vha, 0x300b, |
1030 | "User data buffer=%p for cmd=%p.\n", cp, sp->cmd); | |
bad75002 AE |
1031 | } |
1032 | } | |
1033 | /* Null termination */ | |
1034 | *cur_dsd++ = 0; | |
1035 | *cur_dsd++ = 0; | |
1036 | *cur_dsd++ = 0; | |
1037 | return 0; | |
1038 | } | |
1039 | ||
1040 | static int | |
1041 | qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp, | |
1042 | uint32_t *dsd, | |
1043 | uint16_t tot_dsds) | |
1044 | { | |
1045 | void *next_dsd; | |
1046 | uint8_t avail_dsds = 0; | |
1047 | uint32_t dsd_list_len; | |
1048 | struct dsd_dma *dsd_ptr; | |
1049 | struct scatterlist *sg; | |
1050 | int i; | |
1051 | struct scsi_cmnd *cmd; | |
1052 | uint32_t *cur_dsd = dsd; | |
1053 | uint16_t used_dsds = tot_dsds; | |
7c3df132 | 1054 | scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev); |
bad75002 AE |
1055 | uint8_t *cp; |
1056 | ||
1057 | ||
1058 | cmd = sp->cmd; | |
1059 | scsi_for_each_prot_sg(cmd, sg, tot_dsds, i) { | |
1060 | dma_addr_t sle_dma; | |
1061 | ||
1062 | /* Allocate additional continuation packets? */ | |
1063 | if (avail_dsds == 0) { | |
1064 | avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? | |
1065 | QLA_DSDS_PER_IOCB : used_dsds; | |
1066 | dsd_list_len = (avail_dsds + 1) * 12; | |
1067 | used_dsds -= avail_dsds; | |
1068 | ||
1069 | /* allocate tracking DS */ | |
1070 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
1071 | if (!dsd_ptr) | |
1072 | return 1; | |
1073 | ||
1074 | /* allocate new list */ | |
1075 | dsd_ptr->dsd_addr = next_dsd = | |
1076 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, | |
1077 | &dsd_ptr->dsd_list_dma); | |
1078 | ||
1079 | if (!next_dsd) { | |
1080 | /* | |
1081 | * Need to cleanup only this dsd_ptr, rest | |
1082 | * will be done by sp_free_dma() | |
1083 | */ | |
1084 | kfree(dsd_ptr); | |
1085 | return 1; | |
1086 | } | |
1087 | ||
1088 | list_add_tail(&dsd_ptr->list, | |
1089 | &((struct crc_context *)sp->ctx)->dsd_list); | |
1090 | ||
1091 | sp->flags |= SRB_CRC_CTX_DSD_VALID; | |
1092 | ||
1093 | /* add new list to cmd iocb or last list */ | |
1094 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
1095 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
1096 | *cur_dsd++ = dsd_list_len; | |
1097 | cur_dsd = (uint32_t *)next_dsd; | |
1098 | } | |
1099 | sle_dma = sg_dma_address(sg); | |
1100 | if (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_PASS) { | |
7c3df132 SK |
1101 | ql_dbg(ql_dbg_io, vha, 0x3027, |
1102 | "%s(): %p, sg_entry %d - " | |
1103 | "addr=0x%x0x%x, len=%d.\n", | |
1104 | __func__, cur_dsd, i, | |
1105 | LSD(sle_dma), MSD(sle_dma), sg_dma_len(sg)); | |
bad75002 AE |
1106 | } |
1107 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
1108 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
1109 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
1110 | ||
1111 | if (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_PASS) { | |
1112 | cp = page_address(sg_page(sg)) + sg->offset; | |
7c3df132 SK |
1113 | ql_dbg(ql_dbg_io, vha, 0x3028, |
1114 | "%s(): Protection Data buffer = %p.\n", __func__, | |
1115 | cp); | |
bad75002 AE |
1116 | } |
1117 | avail_dsds--; | |
1118 | } | |
1119 | /* Null termination */ | |
1120 | *cur_dsd++ = 0; | |
1121 | *cur_dsd++ = 0; | |
1122 | *cur_dsd++ = 0; | |
1123 | return 0; | |
1124 | } | |
1125 | ||
1126 | /** | |
1127 | * qla24xx_build_scsi_crc_2_iocbs() - Build IOCB command utilizing Command | |
1128 | * Type 6 IOCB types. | |
1129 | * | |
1130 | * @sp: SRB command to process | |
1131 | * @cmd_pkt: Command type 3 IOCB | |
1132 | * @tot_dsds: Total number of segments to transfer | |
1133 | */ | |
1134 | static inline int | |
1135 | qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt, | |
1136 | uint16_t tot_dsds, uint16_t tot_prot_dsds, uint16_t fw_prot_opts) | |
1137 | { | |
1138 | uint32_t *cur_dsd, *fcp_dl; | |
1139 | scsi_qla_host_t *vha; | |
1140 | struct scsi_cmnd *cmd; | |
1141 | struct scatterlist *cur_seg; | |
1142 | int sgc; | |
8cb2049c | 1143 | uint32_t total_bytes = 0; |
bad75002 AE |
1144 | uint32_t data_bytes; |
1145 | uint32_t dif_bytes; | |
1146 | uint8_t bundling = 1; | |
1147 | uint16_t blk_size; | |
1148 | uint8_t *clr_ptr; | |
1149 | struct crc_context *crc_ctx_pkt = NULL; | |
1150 | struct qla_hw_data *ha; | |
1151 | uint8_t additional_fcpcdb_len; | |
1152 | uint16_t fcp_cmnd_len; | |
1153 | struct fcp_cmnd *fcp_cmnd; | |
1154 | dma_addr_t crc_ctx_dma; | |
ff2fc42e | 1155 | char tag[2]; |
bad75002 AE |
1156 | |
1157 | cmd = sp->cmd; | |
1158 | ||
1159 | sgc = 0; | |
1160 | /* Update entry type to indicate Command Type CRC_2 IOCB */ | |
1161 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
1162 | __constant_cpu_to_le32(COMMAND_TYPE_CRC_2); | |
1163 | ||
7c3df132 SK |
1164 | vha = sp->fcport->vha; |
1165 | ha = vha->hw; | |
1166 | ||
bad75002 AE |
1167 | /* No data transfer */ |
1168 | data_bytes = scsi_bufflen(cmd); | |
1169 | if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { | |
bad75002 AE |
1170 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
1171 | return QLA_SUCCESS; | |
1172 | } | |
1173 | ||
bad75002 AE |
1174 | cmd_pkt->vp_index = sp->fcport->vp_idx; |
1175 | ||
1176 | /* Set transfer direction */ | |
1177 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { | |
1178 | cmd_pkt->control_flags = | |
1179 | __constant_cpu_to_le16(CF_WRITE_DATA); | |
1180 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
1181 | cmd_pkt->control_flags = | |
1182 | __constant_cpu_to_le16(CF_READ_DATA); | |
1183 | } | |
1184 | ||
8cb2049c AE |
1185 | if ((scsi_get_prot_op(sp->cmd) == SCSI_PROT_READ_INSERT) || |
1186 | (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_STRIP) || | |
1187 | (scsi_get_prot_op(sp->cmd) == SCSI_PROT_READ_STRIP) || | |
1188 | (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_INSERT)) | |
bad75002 AE |
1189 | bundling = 0; |
1190 | ||
1191 | /* Allocate CRC context from global pool */ | |
1192 | crc_ctx_pkt = sp->ctx = dma_pool_alloc(ha->dl_dma_pool, | |
1193 | GFP_ATOMIC, &crc_ctx_dma); | |
1194 | ||
1195 | if (!crc_ctx_pkt) | |
1196 | goto crc_queuing_error; | |
1197 | ||
1198 | /* Zero out CTX area. */ | |
1199 | clr_ptr = (uint8_t *)crc_ctx_pkt; | |
1200 | memset(clr_ptr, 0, sizeof(*crc_ctx_pkt)); | |
1201 | ||
1202 | crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma; | |
1203 | ||
1204 | sp->flags |= SRB_CRC_CTX_DMA_VALID; | |
1205 | ||
1206 | /* Set handle */ | |
1207 | crc_ctx_pkt->handle = cmd_pkt->handle; | |
1208 | ||
1209 | INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list); | |
1210 | ||
1211 | qla24xx_set_t10dif_tags(cmd, (struct fw_dif_context *) | |
1212 | &crc_ctx_pkt->ref_tag, tot_prot_dsds); | |
1213 | ||
1214 | cmd_pkt->crc_context_address[0] = cpu_to_le32(LSD(crc_ctx_dma)); | |
1215 | cmd_pkt->crc_context_address[1] = cpu_to_le32(MSD(crc_ctx_dma)); | |
1216 | cmd_pkt->crc_context_len = CRC_CONTEXT_LEN_FW; | |
1217 | ||
1218 | /* Determine SCSI command length -- align to 4 byte boundary */ | |
1219 | if (cmd->cmd_len > 16) { | |
bad75002 AE |
1220 | additional_fcpcdb_len = cmd->cmd_len - 16; |
1221 | if ((cmd->cmd_len % 4) != 0) { | |
1222 | /* SCSI cmd > 16 bytes must be multiple of 4 */ | |
1223 | goto crc_queuing_error; | |
1224 | } | |
1225 | fcp_cmnd_len = 12 + cmd->cmd_len + 4; | |
1226 | } else { | |
1227 | additional_fcpcdb_len = 0; | |
1228 | fcp_cmnd_len = 12 + 16 + 4; | |
1229 | } | |
1230 | ||
1231 | fcp_cmnd = &crc_ctx_pkt->fcp_cmnd; | |
1232 | ||
1233 | fcp_cmnd->additional_cdb_len = additional_fcpcdb_len; | |
1234 | if (cmd->sc_data_direction == DMA_TO_DEVICE) | |
1235 | fcp_cmnd->additional_cdb_len |= 1; | |
1236 | else if (cmd->sc_data_direction == DMA_FROM_DEVICE) | |
1237 | fcp_cmnd->additional_cdb_len |= 2; | |
1238 | ||
1239 | int_to_scsilun(sp->cmd->device->lun, &fcp_cmnd->lun); | |
85727e1f | 1240 | host_to_fcp_swap((uint8_t *)&fcp_cmnd->lun, sizeof(fcp_cmnd->lun)); |
bad75002 AE |
1241 | memcpy(fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); |
1242 | cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(fcp_cmnd_len); | |
1243 | cmd_pkt->fcp_cmnd_dseg_address[0] = cpu_to_le32( | |
1244 | LSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF)); | |
1245 | cmd_pkt->fcp_cmnd_dseg_address[1] = cpu_to_le32( | |
1246 | MSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF)); | |
65155b37 | 1247 | fcp_cmnd->task_management = 0; |
bad75002 | 1248 | |
ff2fc42e AV |
1249 | /* |
1250 | * Update tagged queuing modifier if using command tag queuing | |
1251 | */ | |
1252 | if (scsi_populate_tag_msg(cmd, tag)) { | |
1253 | switch (tag[0]) { | |
1254 | case HEAD_OF_QUEUE_TAG: | |
1255 | fcp_cmnd->task_attribute = TSK_HEAD_OF_QUEUE; | |
1256 | break; | |
1257 | case ORDERED_QUEUE_TAG: | |
1258 | fcp_cmnd->task_attribute = TSK_ORDERED; | |
1259 | break; | |
1260 | default: | |
1261 | fcp_cmnd->task_attribute = 0; | |
1262 | break; | |
1263 | } | |
1264 | } else { | |
1265 | fcp_cmnd->task_attribute = 0; | |
1266 | } | |
1267 | ||
bad75002 AE |
1268 | cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */ |
1269 | ||
bad75002 | 1270 | /* Compute dif len and adjust data len to incude protection */ |
bad75002 AE |
1271 | dif_bytes = 0; |
1272 | blk_size = cmd->device->sector_size; | |
8cb2049c AE |
1273 | dif_bytes = (data_bytes / blk_size) * 8; |
1274 | ||
1275 | switch (scsi_get_prot_op(sp->cmd)) { | |
1276 | case SCSI_PROT_READ_INSERT: | |
1277 | case SCSI_PROT_WRITE_STRIP: | |
1278 | total_bytes = data_bytes; | |
1279 | data_bytes += dif_bytes; | |
1280 | break; | |
1281 | ||
1282 | case SCSI_PROT_READ_STRIP: | |
1283 | case SCSI_PROT_WRITE_INSERT: | |
1284 | case SCSI_PROT_READ_PASS: | |
1285 | case SCSI_PROT_WRITE_PASS: | |
1286 | total_bytes = data_bytes + dif_bytes; | |
1287 | break; | |
1288 | default: | |
1289 | BUG(); | |
bad75002 AE |
1290 | } |
1291 | ||
8cb2049c | 1292 | if (!qla2x00_hba_err_chk_enabled(scsi_get_prot_op(cmd))) |
bad75002 AE |
1293 | fw_prot_opts |= 0x10; /* Disable Guard tag checking */ |
1294 | ||
1295 | if (!bundling) { | |
1296 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.nobundling.data_address; | |
1297 | } else { | |
1298 | /* | |
1299 | * Configure Bundling if we need to fetch interlaving | |
1300 | * protection PCI accesses | |
1301 | */ | |
1302 | fw_prot_opts |= PO_ENABLE_DIF_BUNDLING; | |
1303 | crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes); | |
1304 | crc_ctx_pkt->u.bundling.dseg_count = cpu_to_le16(tot_dsds - | |
1305 | tot_prot_dsds); | |
1306 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.data_address; | |
1307 | } | |
1308 | ||
1309 | /* Finish the common fields of CRC pkt */ | |
1310 | crc_ctx_pkt->blk_size = cpu_to_le16(blk_size); | |
1311 | crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts); | |
1312 | crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes); | |
1313 | crc_ctx_pkt->guard_seed = __constant_cpu_to_le16(0); | |
1314 | /* Fibre channel byte count */ | |
1315 | cmd_pkt->byte_count = cpu_to_le32(total_bytes); | |
1316 | fcp_dl = (uint32_t *)(crc_ctx_pkt->fcp_cmnd.cdb + 16 + | |
1317 | additional_fcpcdb_len); | |
1318 | *fcp_dl = htonl(total_bytes); | |
1319 | ||
0c470874 | 1320 | if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { |
0c470874 AE |
1321 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
1322 | return QLA_SUCCESS; | |
1323 | } | |
bad75002 AE |
1324 | /* Walks data segments */ |
1325 | ||
1326 | cmd_pkt->control_flags |= | |
1327 | __constant_cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE); | |
8cb2049c AE |
1328 | |
1329 | if (!bundling && tot_prot_dsds) { | |
1330 | if (qla24xx_walk_and_build_sglist_no_difb(ha, sp, | |
1331 | cur_dsd, tot_dsds)) | |
1332 | goto crc_queuing_error; | |
1333 | } else if (qla24xx_walk_and_build_sglist(ha, sp, cur_dsd, | |
bad75002 AE |
1334 | (tot_dsds - tot_prot_dsds))) |
1335 | goto crc_queuing_error; | |
1336 | ||
1337 | if (bundling && tot_prot_dsds) { | |
1338 | /* Walks dif segments */ | |
1339 | cur_seg = scsi_prot_sglist(cmd); | |
1340 | cmd_pkt->control_flags |= | |
1341 | __constant_cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE); | |
1342 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.dif_address; | |
1343 | if (qla24xx_walk_and_build_prot_sglist(ha, sp, cur_dsd, | |
1344 | tot_prot_dsds)) | |
1345 | goto crc_queuing_error; | |
1346 | } | |
1347 | return QLA_SUCCESS; | |
1348 | ||
1349 | crc_queuing_error: | |
bad75002 AE |
1350 | /* Cleanup will be performed by the caller */ |
1351 | ||
1352 | return QLA_FUNCTION_FAILED; | |
1353 | } | |
2b6c0cee AV |
1354 | |
1355 | /** | |
1356 | * qla24xx_start_scsi() - Send a SCSI command to the ISP | |
1357 | * @sp: command to send to the ISP | |
1358 | * | |
cc3ef7bc | 1359 | * Returns non-zero if a failure occurred, else zero. |
2b6c0cee AV |
1360 | */ |
1361 | int | |
1362 | qla24xx_start_scsi(srb_t *sp) | |
1363 | { | |
385d70b4 | 1364 | int ret, nseg; |
2b6c0cee | 1365 | unsigned long flags; |
2b6c0cee AV |
1366 | uint32_t *clr_ptr; |
1367 | uint32_t index; | |
1368 | uint32_t handle; | |
1369 | struct cmd_type_7 *cmd_pkt; | |
2b6c0cee AV |
1370 | uint16_t cnt; |
1371 | uint16_t req_cnt; | |
1372 | uint16_t tot_dsds; | |
73208dfd AC |
1373 | struct req_que *req = NULL; |
1374 | struct rsp_que *rsp = NULL; | |
1375 | struct scsi_cmnd *cmd = sp->cmd; | |
444786d7 | 1376 | struct scsi_qla_host *vha = sp->fcport->vha; |
73208dfd | 1377 | struct qla_hw_data *ha = vha->hw; |
ff2fc42e | 1378 | char tag[2]; |
2b6c0cee AV |
1379 | |
1380 | /* Setup device pointers. */ | |
1381 | ret = 0; | |
73208dfd | 1382 | |
59e0b8b0 AC |
1383 | qla25xx_set_que(sp, &rsp); |
1384 | req = vha->req; | |
73208dfd | 1385 | |
2b6c0cee AV |
1386 | /* So we know we haven't pci_map'ed anything yet */ |
1387 | tot_dsds = 0; | |
1388 | ||
1389 | /* Send marker if required */ | |
e315cd28 | 1390 | if (vha->marker_needed != 0) { |
7c3df132 SK |
1391 | if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != |
1392 | QLA_SUCCESS) | |
2b6c0cee | 1393 | return QLA_FUNCTION_FAILED; |
e315cd28 | 1394 | vha->marker_needed = 0; |
2b6c0cee AV |
1395 | } |
1396 | ||
1397 | /* Acquire ring specific lock */ | |
e315cd28 | 1398 | spin_lock_irqsave(&ha->hardware_lock, flags); |
2b6c0cee AV |
1399 | |
1400 | /* Check for room in outstanding command list. */ | |
e315cd28 | 1401 | handle = req->current_outstanding_cmd; |
2b6c0cee AV |
1402 | for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { |
1403 | handle++; | |
1404 | if (handle == MAX_OUTSTANDING_COMMANDS) | |
1405 | handle = 1; | |
e315cd28 | 1406 | if (!req->outstanding_cmds[handle]) |
2b6c0cee AV |
1407 | break; |
1408 | } | |
7c3df132 | 1409 | if (index == MAX_OUTSTANDING_COMMANDS) { |
2b6c0cee | 1410 | goto queuing_error; |
7c3df132 | 1411 | } |
2b6c0cee AV |
1412 | |
1413 | /* Map the sg table so we have an accurate count of sg entries needed */ | |
2c3dfe3f SJ |
1414 | if (scsi_sg_count(cmd)) { |
1415 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
1416 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
1417 | if (unlikely(!nseg)) | |
2b6c0cee | 1418 | goto queuing_error; |
2c3dfe3f SJ |
1419 | } else |
1420 | nseg = 0; | |
1421 | ||
385d70b4 | 1422 | tot_dsds = nseg; |
7c3df132 | 1423 | req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); |
e315cd28 | 1424 | if (req->cnt < (req_cnt + 2)) { |
08029990 | 1425 | cnt = RD_REG_DWORD_RELAXED(req->req_q_out); |
73208dfd | 1426 | |
e315cd28 AC |
1427 | if (req->ring_index < cnt) |
1428 | req->cnt = cnt - req->ring_index; | |
2b6c0cee | 1429 | else |
e315cd28 AC |
1430 | req->cnt = req->length - |
1431 | (req->ring_index - cnt); | |
2b6c0cee | 1432 | } |
e315cd28 | 1433 | if (req->cnt < (req_cnt + 2)) |
2b6c0cee | 1434 | goto queuing_error; |
2b6c0cee AV |
1435 | |
1436 | /* Build command packet. */ | |
e315cd28 AC |
1437 | req->current_outstanding_cmd = handle; |
1438 | req->outstanding_cmds[handle] = sp; | |
cf53b069 | 1439 | sp->handle = handle; |
2b6c0cee | 1440 | sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
e315cd28 | 1441 | req->cnt -= req_cnt; |
2b6c0cee | 1442 | |
e315cd28 | 1443 | cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; |
2afa19a9 | 1444 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); |
2b6c0cee AV |
1445 | |
1446 | /* Zero out remaining portion of packet. */ | |
72df8325 | 1447 | /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ |
2b6c0cee AV |
1448 | clr_ptr = (uint32_t *)cmd_pkt + 2; |
1449 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
1450 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
1451 | ||
1452 | /* Set NPORT-ID and LUN number*/ | |
1453 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1454 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1455 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
1456 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
2c3dfe3f | 1457 | cmd_pkt->vp_index = sp->fcport->vp_idx; |
2b6c0cee | 1458 | |
661c3f6c | 1459 | int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun); |
0d4be124 | 1460 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); |
2b6c0cee | 1461 | |
ff2fc42e AV |
1462 | /* Update tagged queuing modifier -- default is TSK_SIMPLE (0). */ |
1463 | if (scsi_populate_tag_msg(cmd, tag)) { | |
1464 | switch (tag[0]) { | |
1465 | case HEAD_OF_QUEUE_TAG: | |
1466 | cmd_pkt->task = TSK_HEAD_OF_QUEUE; | |
1467 | break; | |
1468 | case ORDERED_QUEUE_TAG: | |
1469 | cmd_pkt->task = TSK_ORDERED; | |
1470 | break; | |
1471 | } | |
1472 | } | |
1473 | ||
2b6c0cee AV |
1474 | /* Load SCSI command packet. */ |
1475 | memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); | |
1476 | host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); | |
1477 | ||
385d70b4 | 1478 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); |
2b6c0cee AV |
1479 | |
1480 | /* Build IOCB segments */ | |
1481 | qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds); | |
1482 | ||
1483 | /* Set total data segment count. */ | |
1484 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
2afa19a9 AC |
1485 | /* Specify response queue number where completion should happen */ |
1486 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
2b6c0cee | 1487 | wmb(); |
2b6c0cee | 1488 | /* Adjust ring index. */ |
e315cd28 AC |
1489 | req->ring_index++; |
1490 | if (req->ring_index == req->length) { | |
1491 | req->ring_index = 0; | |
1492 | req->ring_ptr = req->ring; | |
2b6c0cee | 1493 | } else |
e315cd28 | 1494 | req->ring_ptr++; |
2b6c0cee AV |
1495 | |
1496 | sp->flags |= SRB_DMA_VALID; | |
2b6c0cee AV |
1497 | |
1498 | /* Set chip new ring index. */ | |
08029990 AV |
1499 | WRT_REG_DWORD(req->req_q_in, req->ring_index); |
1500 | RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); | |
2b6c0cee | 1501 | |
4fdfefe5 | 1502 | /* Manage unprocessed RIO/ZIO commands in response queue. */ |
e315cd28 | 1503 | if (vha->flags.process_response_queue && |
73208dfd | 1504 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) |
2afa19a9 | 1505 | qla24xx_process_response_queue(vha, rsp); |
4fdfefe5 | 1506 | |
e315cd28 | 1507 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
2b6c0cee AV |
1508 | return QLA_SUCCESS; |
1509 | ||
1510 | queuing_error: | |
385d70b4 FT |
1511 | if (tot_dsds) |
1512 | scsi_dma_unmap(cmd); | |
1513 | ||
e315cd28 | 1514 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
2b6c0cee AV |
1515 | |
1516 | return QLA_FUNCTION_FAILED; | |
1da177e4 | 1517 | } |
68ca949c | 1518 | |
bad75002 AE |
1519 | |
1520 | /** | |
1521 | * qla24xx_dif_start_scsi() - Send a SCSI command to the ISP | |
1522 | * @sp: command to send to the ISP | |
1523 | * | |
1524 | * Returns non-zero if a failure occurred, else zero. | |
1525 | */ | |
1526 | int | |
1527 | qla24xx_dif_start_scsi(srb_t *sp) | |
1528 | { | |
1529 | int nseg; | |
1530 | unsigned long flags; | |
1531 | uint32_t *clr_ptr; | |
1532 | uint32_t index; | |
1533 | uint32_t handle; | |
1534 | uint16_t cnt; | |
1535 | uint16_t req_cnt = 0; | |
1536 | uint16_t tot_dsds; | |
1537 | uint16_t tot_prot_dsds; | |
1538 | uint16_t fw_prot_opts = 0; | |
1539 | struct req_que *req = NULL; | |
1540 | struct rsp_que *rsp = NULL; | |
1541 | struct scsi_cmnd *cmd = sp->cmd; | |
1542 | struct scsi_qla_host *vha = sp->fcport->vha; | |
1543 | struct qla_hw_data *ha = vha->hw; | |
1544 | struct cmd_type_crc_2 *cmd_pkt; | |
1545 | uint32_t status = 0; | |
1546 | ||
1547 | #define QDSS_GOT_Q_SPACE BIT_0 | |
1548 | ||
0c470874 AE |
1549 | /* Only process protection or >16 cdb in this routine */ |
1550 | if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) { | |
1551 | if (cmd->cmd_len <= 16) | |
1552 | return qla24xx_start_scsi(sp); | |
1553 | } | |
bad75002 AE |
1554 | |
1555 | /* Setup device pointers. */ | |
1556 | ||
1557 | qla25xx_set_que(sp, &rsp); | |
1558 | req = vha->req; | |
1559 | ||
1560 | /* So we know we haven't pci_map'ed anything yet */ | |
1561 | tot_dsds = 0; | |
1562 | ||
1563 | /* Send marker if required */ | |
1564 | if (vha->marker_needed != 0) { | |
1565 | if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != | |
1566 | QLA_SUCCESS) | |
1567 | return QLA_FUNCTION_FAILED; | |
1568 | vha->marker_needed = 0; | |
1569 | } | |
1570 | ||
1571 | /* Acquire ring specific lock */ | |
1572 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
1573 | ||
1574 | /* Check for room in outstanding command list. */ | |
1575 | handle = req->current_outstanding_cmd; | |
1576 | for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { | |
1577 | handle++; | |
1578 | if (handle == MAX_OUTSTANDING_COMMANDS) | |
1579 | handle = 1; | |
1580 | if (!req->outstanding_cmds[handle]) | |
1581 | break; | |
1582 | } | |
1583 | ||
1584 | if (index == MAX_OUTSTANDING_COMMANDS) | |
1585 | goto queuing_error; | |
1586 | ||
1587 | /* Compute number of required data segments */ | |
1588 | /* Map the sg table so we have an accurate count of sg entries needed */ | |
1589 | if (scsi_sg_count(cmd)) { | |
1590 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
1591 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
1592 | if (unlikely(!nseg)) | |
1593 | goto queuing_error; | |
1594 | else | |
1595 | sp->flags |= SRB_DMA_VALID; | |
8cb2049c AE |
1596 | |
1597 | if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || | |
1598 | (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { | |
1599 | struct qla2_sgx sgx; | |
1600 | uint32_t partial; | |
1601 | ||
1602 | memset(&sgx, 0, sizeof(struct qla2_sgx)); | |
1603 | sgx.tot_bytes = scsi_bufflen(cmd); | |
1604 | sgx.cur_sg = scsi_sglist(cmd); | |
1605 | sgx.sp = sp; | |
1606 | ||
1607 | nseg = 0; | |
1608 | while (qla24xx_get_one_block_sg( | |
1609 | cmd->device->sector_size, &sgx, &partial)) | |
1610 | nseg++; | |
1611 | } | |
bad75002 AE |
1612 | } else |
1613 | nseg = 0; | |
1614 | ||
1615 | /* number of required data segments */ | |
1616 | tot_dsds = nseg; | |
1617 | ||
1618 | /* Compute number of required protection segments */ | |
1619 | if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) { | |
1620 | nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd), | |
1621 | scsi_prot_sg_count(cmd), cmd->sc_data_direction); | |
1622 | if (unlikely(!nseg)) | |
1623 | goto queuing_error; | |
1624 | else | |
1625 | sp->flags |= SRB_CRC_PROT_DMA_VALID; | |
8cb2049c AE |
1626 | |
1627 | if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || | |
1628 | (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { | |
1629 | nseg = scsi_bufflen(cmd) / cmd->device->sector_size; | |
1630 | } | |
bad75002 AE |
1631 | } else { |
1632 | nseg = 0; | |
1633 | } | |
1634 | ||
1635 | req_cnt = 1; | |
1636 | /* Total Data and protection sg segment(s) */ | |
1637 | tot_prot_dsds = nseg; | |
1638 | tot_dsds += nseg; | |
1639 | if (req->cnt < (req_cnt + 2)) { | |
1640 | cnt = RD_REG_DWORD_RELAXED(req->req_q_out); | |
1641 | ||
1642 | if (req->ring_index < cnt) | |
1643 | req->cnt = cnt - req->ring_index; | |
1644 | else | |
1645 | req->cnt = req->length - | |
1646 | (req->ring_index - cnt); | |
1647 | } | |
1648 | ||
1649 | if (req->cnt < (req_cnt + 2)) | |
1650 | goto queuing_error; | |
1651 | ||
1652 | status |= QDSS_GOT_Q_SPACE; | |
1653 | ||
1654 | /* Build header part of command packet (excluding the OPCODE). */ | |
1655 | req->current_outstanding_cmd = handle; | |
1656 | req->outstanding_cmds[handle] = sp; | |
8cb2049c | 1657 | sp->handle = handle; |
bad75002 AE |
1658 | sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
1659 | req->cnt -= req_cnt; | |
1660 | ||
1661 | /* Fill-in common area */ | |
1662 | cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr; | |
1663 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); | |
1664 | ||
1665 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
1666 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
1667 | ||
1668 | /* Set NPORT-ID and LUN number*/ | |
1669 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1670 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1671 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
1672 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
1673 | ||
1674 | int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun); | |
1675 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); | |
1676 | ||
1677 | /* Total Data and protection segment(s) */ | |
1678 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
1679 | ||
1680 | /* Build IOCB segments and adjust for data protection segments */ | |
1681 | if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *) | |
1682 | req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) != | |
1683 | QLA_SUCCESS) | |
1684 | goto queuing_error; | |
1685 | ||
1686 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
1687 | /* Specify response queue number where completion should happen */ | |
1688 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
1689 | cmd_pkt->timeout = __constant_cpu_to_le16(0); | |
1690 | wmb(); | |
1691 | ||
1692 | /* Adjust ring index. */ | |
1693 | req->ring_index++; | |
1694 | if (req->ring_index == req->length) { | |
1695 | req->ring_index = 0; | |
1696 | req->ring_ptr = req->ring; | |
1697 | } else | |
1698 | req->ring_ptr++; | |
1699 | ||
1700 | /* Set chip new ring index. */ | |
1701 | WRT_REG_DWORD(req->req_q_in, req->ring_index); | |
1702 | RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); | |
1703 | ||
1704 | /* Manage unprocessed RIO/ZIO commands in response queue. */ | |
1705 | if (vha->flags.process_response_queue && | |
1706 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) | |
1707 | qla24xx_process_response_queue(vha, rsp); | |
1708 | ||
1709 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
1710 | ||
1711 | return QLA_SUCCESS; | |
1712 | ||
1713 | queuing_error: | |
1714 | if (status & QDSS_GOT_Q_SPACE) { | |
1715 | req->outstanding_cmds[handle] = NULL; | |
1716 | req->cnt += req_cnt; | |
1717 | } | |
1718 | /* Cleanup will be performed by the caller (queuecommand) */ | |
1719 | ||
1720 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
bad75002 AE |
1721 | return QLA_FUNCTION_FAILED; |
1722 | } | |
1723 | ||
1724 | ||
59e0b8b0 | 1725 | static void qla25xx_set_que(srb_t *sp, struct rsp_que **rsp) |
68ca949c AC |
1726 | { |
1727 | struct scsi_cmnd *cmd = sp->cmd; | |
68ca949c AC |
1728 | struct qla_hw_data *ha = sp->fcport->vha->hw; |
1729 | int affinity = cmd->request->cpu; | |
1730 | ||
7163ea81 | 1731 | if (ha->flags.cpu_affinity_enabled && affinity >= 0 && |
59e0b8b0 | 1732 | affinity < ha->max_rsp_queues - 1) |
68ca949c | 1733 | *rsp = ha->rsp_q_map[affinity + 1]; |
59e0b8b0 | 1734 | else |
68ca949c | 1735 | *rsp = ha->rsp_q_map[0]; |
68ca949c | 1736 | } |
ac280b67 AV |
1737 | |
1738 | /* Generic Control-SRB manipulation functions. */ | |
d94d10e7 GM |
1739 | void * |
1740 | qla2x00_alloc_iocbs(scsi_qla_host_t *vha, srb_t *sp) | |
ac280b67 | 1741 | { |
ac280b67 AV |
1742 | struct qla_hw_data *ha = vha->hw; |
1743 | struct req_que *req = ha->req_q_map[0]; | |
1744 | device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id); | |
1745 | uint32_t index, handle; | |
1746 | request_t *pkt; | |
1747 | uint16_t cnt, req_cnt; | |
1748 | ||
1749 | pkt = NULL; | |
1750 | req_cnt = 1; | |
d94d10e7 GM |
1751 | handle = 0; |
1752 | ||
1753 | if (!sp) | |
1754 | goto skip_cmd_array; | |
ac280b67 AV |
1755 | |
1756 | /* Check for room in outstanding command list. */ | |
1757 | handle = req->current_outstanding_cmd; | |
1758 | for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) { | |
1759 | handle++; | |
1760 | if (handle == MAX_OUTSTANDING_COMMANDS) | |
1761 | handle = 1; | |
1762 | if (!req->outstanding_cmds[handle]) | |
1763 | break; | |
1764 | } | |
7c3df132 SK |
1765 | if (index == MAX_OUTSTANDING_COMMANDS) { |
1766 | ql_log(ql_log_warn, vha, 0x700b, | |
1767 | "No room on oustanding cmd array.\n"); | |
ac280b67 | 1768 | goto queuing_error; |
7c3df132 | 1769 | } |
ac280b67 | 1770 | |
d94d10e7 GM |
1771 | /* Prep command array. */ |
1772 | req->current_outstanding_cmd = handle; | |
1773 | req->outstanding_cmds[handle] = sp; | |
1774 | sp->handle = handle; | |
1775 | ||
1776 | skip_cmd_array: | |
ac280b67 AV |
1777 | /* Check for room on request queue. */ |
1778 | if (req->cnt < req_cnt) { | |
1779 | if (ha->mqenable) | |
1780 | cnt = RD_REG_DWORD(®->isp25mq.req_q_out); | |
d94d10e7 GM |
1781 | else if (IS_QLA82XX(ha)) |
1782 | cnt = RD_REG_DWORD(®->isp82.req_q_out); | |
ac280b67 AV |
1783 | else if (IS_FWI2_CAPABLE(ha)) |
1784 | cnt = RD_REG_DWORD(®->isp24.req_q_out); | |
1785 | else | |
1786 | cnt = qla2x00_debounce_register( | |
1787 | ISP_REQ_Q_OUT(ha, ®->isp)); | |
1788 | ||
1789 | if (req->ring_index < cnt) | |
1790 | req->cnt = cnt - req->ring_index; | |
1791 | else | |
1792 | req->cnt = req->length - | |
1793 | (req->ring_index - cnt); | |
1794 | } | |
1795 | if (req->cnt < req_cnt) | |
1796 | goto queuing_error; | |
1797 | ||
1798 | /* Prep packet */ | |
ac280b67 | 1799 | req->cnt -= req_cnt; |
ac280b67 AV |
1800 | pkt = req->ring_ptr; |
1801 | memset(pkt, 0, REQUEST_ENTRY_SIZE); | |
1802 | pkt->entry_count = req_cnt; | |
1803 | pkt->handle = handle; | |
ac280b67 AV |
1804 | |
1805 | queuing_error: | |
1806 | return pkt; | |
1807 | } | |
1808 | ||
1809 | static void | |
1810 | qla2x00_start_iocbs(srb_t *sp) | |
1811 | { | |
1812 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
1813 | struct req_que *req = ha->req_q_map[0]; | |
1814 | device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id); | |
1815 | struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp; | |
1816 | ||
a9083016 GM |
1817 | if (IS_QLA82XX(ha)) { |
1818 | qla82xx_start_iocbs(sp); | |
ac280b67 | 1819 | } else { |
a9083016 GM |
1820 | /* Adjust ring index. */ |
1821 | req->ring_index++; | |
1822 | if (req->ring_index == req->length) { | |
1823 | req->ring_index = 0; | |
1824 | req->ring_ptr = req->ring; | |
1825 | } else | |
1826 | req->ring_ptr++; | |
1827 | ||
1828 | /* Set chip new ring index. */ | |
1829 | if (ha->mqenable) { | |
1830 | WRT_REG_DWORD(®->isp25mq.req_q_in, req->ring_index); | |
1831 | RD_REG_DWORD(&ioreg->hccr); | |
1832 | } else if (IS_QLA82XX(ha)) { | |
1833 | qla82xx_start_iocbs(sp); | |
1834 | } else if (IS_FWI2_CAPABLE(ha)) { | |
1835 | WRT_REG_DWORD(®->isp24.req_q_in, req->ring_index); | |
1836 | RD_REG_DWORD_RELAXED(®->isp24.req_q_in); | |
1837 | } else { | |
1838 | WRT_REG_WORD(ISP_REQ_Q_IN(ha, ®->isp), | |
1839 | req->ring_index); | |
1840 | RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, ®->isp)); | |
1841 | } | |
ac280b67 AV |
1842 | } |
1843 | } | |
1844 | ||
1845 | static void | |
1846 | qla24xx_login_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1847 | { | |
4916392b MI |
1848 | struct srb_ctx *ctx = sp->ctx; |
1849 | struct srb_iocb *lio = ctx->u.iocb_cmd; | |
ac280b67 AV |
1850 | |
1851 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1852 | logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI); | |
4916392b | 1853 | if (lio->u.logio.flags & SRB_LOGIN_COND_PLOGI) |
ac280b67 | 1854 | logio->control_flags |= cpu_to_le16(LCF_COND_PLOGI); |
4916392b | 1855 | if (lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI) |
ac280b67 AV |
1856 | logio->control_flags |= cpu_to_le16(LCF_SKIP_PRLI); |
1857 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1858 | logio->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1859 | logio->port_id[1] = sp->fcport->d_id.b.area; | |
1860 | logio->port_id[2] = sp->fcport->d_id.b.domain; | |
1861 | logio->vp_index = sp->fcport->vp_idx; | |
1862 | } | |
1863 | ||
1864 | static void | |
1865 | qla2x00_login_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1866 | { | |
1867 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
4916392b MI |
1868 | struct srb_ctx *ctx = sp->ctx; |
1869 | struct srb_iocb *lio = ctx->u.iocb_cmd; | |
ac280b67 AV |
1870 | uint16_t opts; |
1871 | ||
b963752f | 1872 | mbx->entry_type = MBX_IOCB_TYPE; |
ac280b67 AV |
1873 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); |
1874 | mbx->mb0 = cpu_to_le16(MBC_LOGIN_FABRIC_PORT); | |
4916392b MI |
1875 | opts = lio->u.logio.flags & SRB_LOGIN_COND_PLOGI ? BIT_0 : 0; |
1876 | opts |= lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI ? BIT_1 : 0; | |
ac280b67 AV |
1877 | if (HAS_EXTENDED_IDS(ha)) { |
1878 | mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); | |
1879 | mbx->mb10 = cpu_to_le16(opts); | |
1880 | } else { | |
1881 | mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | opts); | |
1882 | } | |
1883 | mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); | |
1884 | mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | | |
1885 | sp->fcport->d_id.b.al_pa); | |
1886 | mbx->mb9 = cpu_to_le16(sp->fcport->vp_idx); | |
1887 | } | |
1888 | ||
1889 | static void | |
1890 | qla24xx_logout_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1891 | { | |
1892 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1893 | logio->control_flags = | |
1894 | cpu_to_le16(LCF_COMMAND_LOGO|LCF_IMPL_LOGO); | |
1895 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1896 | logio->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1897 | logio->port_id[1] = sp->fcport->d_id.b.area; | |
1898 | logio->port_id[2] = sp->fcport->d_id.b.domain; | |
1899 | logio->vp_index = sp->fcport->vp_idx; | |
1900 | } | |
1901 | ||
1902 | static void | |
1903 | qla2x00_logout_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1904 | { | |
1905 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
1906 | ||
b963752f | 1907 | mbx->entry_type = MBX_IOCB_TYPE; |
ac280b67 AV |
1908 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); |
1909 | mbx->mb0 = cpu_to_le16(MBC_LOGOUT_FABRIC_PORT); | |
1910 | mbx->mb1 = HAS_EXTENDED_IDS(ha) ? | |
1911 | cpu_to_le16(sp->fcport->loop_id): | |
1912 | cpu_to_le16(sp->fcport->loop_id << 8); | |
1913 | mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); | |
1914 | mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | | |
1915 | sp->fcport->d_id.b.al_pa); | |
1916 | mbx->mb9 = cpu_to_le16(sp->fcport->vp_idx); | |
1917 | /* Implicit: mbx->mbx10 = 0. */ | |
1918 | } | |
1919 | ||
5ff1d584 AV |
1920 | static void |
1921 | qla24xx_adisc_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1922 | { | |
1923 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1924 | logio->control_flags = cpu_to_le16(LCF_COMMAND_ADISC); | |
1925 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1926 | logio->vp_index = sp->fcport->vp_idx; | |
1927 | } | |
1928 | ||
1929 | static void | |
1930 | qla2x00_adisc_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1931 | { | |
1932 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
1933 | ||
1934 | mbx->entry_type = MBX_IOCB_TYPE; | |
1935 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); | |
1936 | mbx->mb0 = cpu_to_le16(MBC_GET_PORT_DATABASE); | |
1937 | if (HAS_EXTENDED_IDS(ha)) { | |
1938 | mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); | |
1939 | mbx->mb10 = cpu_to_le16(BIT_0); | |
1940 | } else { | |
1941 | mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | BIT_0); | |
1942 | } | |
1943 | mbx->mb2 = cpu_to_le16(MSW(ha->async_pd_dma)); | |
1944 | mbx->mb3 = cpu_to_le16(LSW(ha->async_pd_dma)); | |
1945 | mbx->mb6 = cpu_to_le16(MSW(MSD(ha->async_pd_dma))); | |
1946 | mbx->mb7 = cpu_to_le16(LSW(MSD(ha->async_pd_dma))); | |
1947 | mbx->mb9 = cpu_to_le16(sp->fcport->vp_idx); | |
1948 | } | |
1949 | ||
3822263e MI |
1950 | static void |
1951 | qla24xx_tm_iocb(srb_t *sp, struct tsk_mgmt_entry *tsk) | |
1952 | { | |
1953 | uint32_t flags; | |
1954 | unsigned int lun; | |
1955 | struct fc_port *fcport = sp->fcport; | |
1956 | scsi_qla_host_t *vha = fcport->vha; | |
1957 | struct qla_hw_data *ha = vha->hw; | |
1958 | struct srb_ctx *ctx = sp->ctx; | |
1959 | struct srb_iocb *iocb = ctx->u.iocb_cmd; | |
1960 | struct req_que *req = vha->req; | |
1961 | ||
1962 | flags = iocb->u.tmf.flags; | |
1963 | lun = iocb->u.tmf.lun; | |
1964 | ||
1965 | tsk->entry_type = TSK_MGMT_IOCB_TYPE; | |
1966 | tsk->entry_count = 1; | |
1967 | tsk->handle = MAKE_HANDLE(req->id, tsk->handle); | |
1968 | tsk->nport_handle = cpu_to_le16(fcport->loop_id); | |
1969 | tsk->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); | |
1970 | tsk->control_flags = cpu_to_le32(flags); | |
1971 | tsk->port_id[0] = fcport->d_id.b.al_pa; | |
1972 | tsk->port_id[1] = fcport->d_id.b.area; | |
1973 | tsk->port_id[2] = fcport->d_id.b.domain; | |
1974 | tsk->vp_index = fcport->vp_idx; | |
1975 | ||
1976 | if (flags == TCF_LUN_RESET) { | |
1977 | int_to_scsilun(lun, &tsk->lun); | |
1978 | host_to_fcp_swap((uint8_t *)&tsk->lun, | |
1979 | sizeof(tsk->lun)); | |
1980 | } | |
1981 | } | |
1982 | ||
9a069e19 GM |
1983 | static void |
1984 | qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) | |
1985 | { | |
4916392b | 1986 | struct fc_bsg_job *bsg_job = ((struct srb_ctx *)sp->ctx)->u.bsg_job; |
9a069e19 GM |
1987 | |
1988 | els_iocb->entry_type = ELS_IOCB_TYPE; | |
1989 | els_iocb->entry_count = 1; | |
1990 | els_iocb->sys_define = 0; | |
1991 | els_iocb->entry_status = 0; | |
1992 | els_iocb->handle = sp->handle; | |
1993 | els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1994 | els_iocb->tx_dsd_count = __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
1995 | els_iocb->vp_index = sp->fcport->vp_idx; | |
1996 | els_iocb->sof_type = EST_SOFI3; | |
1997 | els_iocb->rx_dsd_count = __constant_cpu_to_le16(bsg_job->reply_payload.sg_cnt); | |
1998 | ||
4916392b MI |
1999 | els_iocb->opcode = |
2000 | (((struct srb_ctx *)sp->ctx)->type == SRB_ELS_CMD_RPT) ? | |
2001 | bsg_job->request->rqst_data.r_els.els_code : | |
2002 | bsg_job->request->rqst_data.h_els.command_code; | |
9a069e19 GM |
2003 | els_iocb->port_id[0] = sp->fcport->d_id.b.al_pa; |
2004 | els_iocb->port_id[1] = sp->fcport->d_id.b.area; | |
2005 | els_iocb->port_id[2] = sp->fcport->d_id.b.domain; | |
2006 | els_iocb->control_flags = 0; | |
2007 | els_iocb->rx_byte_count = | |
2008 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
2009 | els_iocb->tx_byte_count = | |
2010 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
2011 | ||
2012 | els_iocb->tx_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2013 | (bsg_job->request_payload.sg_list))); | |
2014 | els_iocb->tx_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2015 | (bsg_job->request_payload.sg_list))); | |
2016 | els_iocb->tx_len = cpu_to_le32(sg_dma_len | |
2017 | (bsg_job->request_payload.sg_list)); | |
2018 | ||
2019 | els_iocb->rx_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2020 | (bsg_job->reply_payload.sg_list))); | |
2021 | els_iocb->rx_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2022 | (bsg_job->reply_payload.sg_list))); | |
2023 | els_iocb->rx_len = cpu_to_le32(sg_dma_len | |
2024 | (bsg_job->reply_payload.sg_list)); | |
2025 | } | |
2026 | ||
9bc4f4fb HZ |
2027 | static void |
2028 | qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb) | |
2029 | { | |
2030 | uint16_t avail_dsds; | |
2031 | uint32_t *cur_dsd; | |
2032 | struct scatterlist *sg; | |
2033 | int index; | |
2034 | uint16_t tot_dsds; | |
2035 | scsi_qla_host_t *vha = sp->fcport->vha; | |
2036 | struct qla_hw_data *ha = vha->hw; | |
2037 | struct fc_bsg_job *bsg_job = ((struct srb_ctx *)sp->ctx)->u.bsg_job; | |
2038 | int loop_iterartion = 0; | |
2039 | int cont_iocb_prsnt = 0; | |
2040 | int entry_count = 1; | |
2041 | ||
2042 | memset(ct_iocb, 0, sizeof(ms_iocb_entry_t)); | |
2043 | ct_iocb->entry_type = CT_IOCB_TYPE; | |
2044 | ct_iocb->entry_status = 0; | |
2045 | ct_iocb->handle1 = sp->handle; | |
2046 | SET_TARGET_ID(ha, ct_iocb->loop_id, sp->fcport->loop_id); | |
2047 | ct_iocb->status = __constant_cpu_to_le16(0); | |
2048 | ct_iocb->control_flags = __constant_cpu_to_le16(0); | |
2049 | ct_iocb->timeout = 0; | |
2050 | ct_iocb->cmd_dsd_count = | |
2051 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
2052 | ct_iocb->total_dsd_count = | |
2053 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt + 1); | |
2054 | ct_iocb->req_bytecount = | |
2055 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
2056 | ct_iocb->rsp_bytecount = | |
2057 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
2058 | ||
2059 | ct_iocb->dseg_req_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2060 | (bsg_job->request_payload.sg_list))); | |
2061 | ct_iocb->dseg_req_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2062 | (bsg_job->request_payload.sg_list))); | |
2063 | ct_iocb->dseg_req_length = ct_iocb->req_bytecount; | |
2064 | ||
2065 | ct_iocb->dseg_rsp_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2066 | (bsg_job->reply_payload.sg_list))); | |
2067 | ct_iocb->dseg_rsp_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2068 | (bsg_job->reply_payload.sg_list))); | |
2069 | ct_iocb->dseg_rsp_length = ct_iocb->rsp_bytecount; | |
2070 | ||
2071 | avail_dsds = 1; | |
2072 | cur_dsd = (uint32_t *)ct_iocb->dseg_rsp_address; | |
2073 | index = 0; | |
2074 | tot_dsds = bsg_job->reply_payload.sg_cnt; | |
2075 | ||
2076 | for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) { | |
2077 | dma_addr_t sle_dma; | |
2078 | cont_a64_entry_t *cont_pkt; | |
2079 | ||
2080 | /* Allocate additional continuation packets? */ | |
2081 | if (avail_dsds == 0) { | |
2082 | /* | |
2083 | * Five DSDs are available in the Cont. | |
2084 | * Type 1 IOCB. | |
2085 | */ | |
2086 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha); | |
2087 | cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; | |
2088 | avail_dsds = 5; | |
2089 | cont_iocb_prsnt = 1; | |
2090 | entry_count++; | |
2091 | } | |
2092 | ||
2093 | sle_dma = sg_dma_address(sg); | |
2094 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
2095 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
2096 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
2097 | loop_iterartion++; | |
2098 | avail_dsds--; | |
2099 | } | |
2100 | ct_iocb->entry_count = entry_count; | |
2101 | } | |
2102 | ||
9a069e19 GM |
2103 | static void |
2104 | qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb) | |
2105 | { | |
2106 | uint16_t avail_dsds; | |
2107 | uint32_t *cur_dsd; | |
2108 | struct scatterlist *sg; | |
2109 | int index; | |
2110 | uint16_t tot_dsds; | |
2111 | scsi_qla_host_t *vha = sp->fcport->vha; | |
4916392b | 2112 | struct fc_bsg_job *bsg_job = ((struct srb_ctx *)sp->ctx)->u.bsg_job; |
9a069e19 GM |
2113 | int loop_iterartion = 0; |
2114 | int cont_iocb_prsnt = 0; | |
2115 | int entry_count = 1; | |
2116 | ||
2117 | ct_iocb->entry_type = CT_IOCB_TYPE; | |
2118 | ct_iocb->entry_status = 0; | |
2119 | ct_iocb->sys_define = 0; | |
2120 | ct_iocb->handle = sp->handle; | |
2121 | ||
2122 | ct_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
2123 | ct_iocb->vp_index = sp->fcport->vp_idx; | |
2124 | ct_iocb->comp_status = __constant_cpu_to_le16(0); | |
2125 | ||
2126 | ct_iocb->cmd_dsd_count = | |
2127 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
2128 | ct_iocb->timeout = 0; | |
2129 | ct_iocb->rsp_dsd_count = | |
2130 | __constant_cpu_to_le16(bsg_job->reply_payload.sg_cnt); | |
2131 | ct_iocb->rsp_byte_count = | |
2132 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
2133 | ct_iocb->cmd_byte_count = | |
2134 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
2135 | ct_iocb->dseg_0_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2136 | (bsg_job->request_payload.sg_list))); | |
2137 | ct_iocb->dseg_0_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2138 | (bsg_job->request_payload.sg_list))); | |
2139 | ct_iocb->dseg_0_len = cpu_to_le32(sg_dma_len | |
2140 | (bsg_job->request_payload.sg_list)); | |
2141 | ||
2142 | avail_dsds = 1; | |
2143 | cur_dsd = (uint32_t *)ct_iocb->dseg_1_address; | |
2144 | index = 0; | |
2145 | tot_dsds = bsg_job->reply_payload.sg_cnt; | |
2146 | ||
2147 | for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) { | |
2148 | dma_addr_t sle_dma; | |
2149 | cont_a64_entry_t *cont_pkt; | |
2150 | ||
2151 | /* Allocate additional continuation packets? */ | |
2152 | if (avail_dsds == 0) { | |
2153 | /* | |
2154 | * Five DSDs are available in the Cont. | |
2155 | * Type 1 IOCB. | |
2156 | */ | |
2157 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha); | |
2158 | cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; | |
2159 | avail_dsds = 5; | |
2160 | cont_iocb_prsnt = 1; | |
2161 | entry_count++; | |
2162 | } | |
2163 | ||
2164 | sle_dma = sg_dma_address(sg); | |
2165 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
2166 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
2167 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
2168 | loop_iterartion++; | |
2169 | avail_dsds--; | |
2170 | } | |
2171 | ct_iocb->entry_count = entry_count; | |
2172 | } | |
2173 | ||
ac280b67 AV |
2174 | int |
2175 | qla2x00_start_sp(srb_t *sp) | |
2176 | { | |
2177 | int rval; | |
2178 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
2179 | void *pkt; | |
2180 | struct srb_ctx *ctx = sp->ctx; | |
2181 | unsigned long flags; | |
2182 | ||
2183 | rval = QLA_FUNCTION_FAILED; | |
2184 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
d94d10e7 | 2185 | pkt = qla2x00_alloc_iocbs(sp->fcport->vha, sp); |
7c3df132 SK |
2186 | if (!pkt) { |
2187 | ql_log(ql_log_warn, sp->fcport->vha, 0x700c, | |
2188 | "qla2x00_alloc_iocbs failed.\n"); | |
ac280b67 | 2189 | goto done; |
7c3df132 | 2190 | } |
ac280b67 AV |
2191 | |
2192 | rval = QLA_SUCCESS; | |
2193 | switch (ctx->type) { | |
2194 | case SRB_LOGIN_CMD: | |
2195 | IS_FWI2_CAPABLE(ha) ? | |
5ff1d584 | 2196 | qla24xx_login_iocb(sp, pkt) : |
ac280b67 AV |
2197 | qla2x00_login_iocb(sp, pkt); |
2198 | break; | |
2199 | case SRB_LOGOUT_CMD: | |
2200 | IS_FWI2_CAPABLE(ha) ? | |
5ff1d584 | 2201 | qla24xx_logout_iocb(sp, pkt) : |
ac280b67 AV |
2202 | qla2x00_logout_iocb(sp, pkt); |
2203 | break; | |
9a069e19 GM |
2204 | case SRB_ELS_CMD_RPT: |
2205 | case SRB_ELS_CMD_HST: | |
2206 | qla24xx_els_iocb(sp, pkt); | |
2207 | break; | |
2208 | case SRB_CT_CMD: | |
9bc4f4fb HZ |
2209 | IS_FWI2_CAPABLE(ha) ? |
2210 | qla24xx_ct_iocb(sp, pkt) : | |
2211 | qla2x00_ct_iocb(sp, pkt); | |
9a069e19 | 2212 | break; |
5ff1d584 AV |
2213 | case SRB_ADISC_CMD: |
2214 | IS_FWI2_CAPABLE(ha) ? | |
2215 | qla24xx_adisc_iocb(sp, pkt) : | |
2216 | qla2x00_adisc_iocb(sp, pkt); | |
2217 | break; | |
3822263e MI |
2218 | case SRB_TM_CMD: |
2219 | qla24xx_tm_iocb(sp, pkt); | |
2220 | break; | |
ac280b67 AV |
2221 | default: |
2222 | break; | |
2223 | } | |
2224 | ||
2225 | wmb(); | |
2226 | qla2x00_start_iocbs(sp); | |
2227 | done: | |
2228 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2229 | return rval; | |
2230 | } |