Commit | Line | Data |
---|---|---|
fa90c54f AV |
1 | /* |
2 | * QLogic Fibre Channel HBA Driver | |
1e63395c | 3 | * Copyright (c) 2003-2013 QLogic Corporation |
1da177e4 | 4 | * |
fa90c54f AV |
5 | * See LICENSE.qla2xxx for copyright and licensing details. |
6 | */ | |
1da177e4 | 7 | #include "qla_def.h" |
2d70c103 | 8 | #include "qla_target.h" |
1da177e4 LT |
9 | |
10 | #include <linux/blkdev.h> | |
11 | #include <linux/delay.h> | |
12 | ||
13 | #include <scsi/scsi_tcq.h> | |
14 | ||
59e0b8b0 | 15 | static void qla25xx_set_que(srb_t *, struct rsp_que **); |
1da177e4 LT |
16 | /** |
17 | * qla2x00_get_cmd_direction() - Determine control_flag data direction. | |
18 | * @cmd: SCSI command | |
19 | * | |
20 | * Returns the proper CF_* direction based on CDB. | |
21 | */ | |
22 | static inline uint16_t | |
49fd462a | 23 | qla2x00_get_cmd_direction(srb_t *sp) |
1da177e4 LT |
24 | { |
25 | uint16_t cflags; | |
9ba56b95 | 26 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
2be21fa2 | 27 | struct scsi_qla_host *vha = sp->fcport->vha; |
1da177e4 LT |
28 | |
29 | cflags = 0; | |
30 | ||
31 | /* Set transfer direction */ | |
9ba56b95 | 32 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { |
1da177e4 | 33 | cflags = CF_WRITE; |
2be21fa2 | 34 | vha->qla_stats.output_bytes += scsi_bufflen(cmd); |
fabbb8df | 35 | vha->qla_stats.output_requests++; |
9ba56b95 | 36 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { |
1da177e4 | 37 | cflags = CF_READ; |
2be21fa2 | 38 | vha->qla_stats.input_bytes += scsi_bufflen(cmd); |
fabbb8df | 39 | vha->qla_stats.input_requests++; |
49fd462a | 40 | } |
1da177e4 LT |
41 | return (cflags); |
42 | } | |
43 | ||
44 | /** | |
45 | * qla2x00_calc_iocbs_32() - Determine number of Command Type 2 and | |
46 | * Continuation Type 0 IOCBs to allocate. | |
47 | * | |
48 | * @dsds: number of data segment decriptors needed | |
49 | * | |
50 | * Returns the number of IOCB entries needed to store @dsds. | |
51 | */ | |
52 | uint16_t | |
53 | qla2x00_calc_iocbs_32(uint16_t dsds) | |
54 | { | |
55 | uint16_t iocbs; | |
56 | ||
57 | iocbs = 1; | |
58 | if (dsds > 3) { | |
59 | iocbs += (dsds - 3) / 7; | |
60 | if ((dsds - 3) % 7) | |
61 | iocbs++; | |
62 | } | |
63 | return (iocbs); | |
64 | } | |
65 | ||
66 | /** | |
67 | * qla2x00_calc_iocbs_64() - Determine number of Command Type 3 and | |
68 | * Continuation Type 1 IOCBs to allocate. | |
69 | * | |
70 | * @dsds: number of data segment decriptors needed | |
71 | * | |
72 | * Returns the number of IOCB entries needed to store @dsds. | |
73 | */ | |
74 | uint16_t | |
75 | qla2x00_calc_iocbs_64(uint16_t dsds) | |
76 | { | |
77 | uint16_t iocbs; | |
78 | ||
79 | iocbs = 1; | |
80 | if (dsds > 2) { | |
81 | iocbs += (dsds - 2) / 5; | |
82 | if ((dsds - 2) % 5) | |
83 | iocbs++; | |
84 | } | |
85 | return (iocbs); | |
86 | } | |
87 | ||
88 | /** | |
89 | * qla2x00_prep_cont_type0_iocb() - Initialize a Continuation Type 0 IOCB. | |
90 | * @ha: HA context | |
91 | * | |
92 | * Returns a pointer to the Continuation Type 0 IOCB packet. | |
93 | */ | |
94 | static inline cont_entry_t * | |
67c2e93a | 95 | qla2x00_prep_cont_type0_iocb(struct scsi_qla_host *vha) |
1da177e4 LT |
96 | { |
97 | cont_entry_t *cont_pkt; | |
67c2e93a | 98 | struct req_que *req = vha->req; |
1da177e4 | 99 | /* Adjust ring index. */ |
e315cd28 AC |
100 | req->ring_index++; |
101 | if (req->ring_index == req->length) { | |
102 | req->ring_index = 0; | |
103 | req->ring_ptr = req->ring; | |
1da177e4 | 104 | } else { |
e315cd28 | 105 | req->ring_ptr++; |
1da177e4 LT |
106 | } |
107 | ||
e315cd28 | 108 | cont_pkt = (cont_entry_t *)req->ring_ptr; |
1da177e4 LT |
109 | |
110 | /* Load packet defaults. */ | |
111 | *((uint32_t *)(&cont_pkt->entry_type)) = | |
112 | __constant_cpu_to_le32(CONTINUE_TYPE); | |
113 | ||
114 | return (cont_pkt); | |
115 | } | |
116 | ||
117 | /** | |
118 | * qla2x00_prep_cont_type1_iocb() - Initialize a Continuation Type 1 IOCB. | |
119 | * @ha: HA context | |
120 | * | |
121 | * Returns a pointer to the continuation type 1 IOCB packet. | |
122 | */ | |
123 | static inline cont_a64_entry_t * | |
0d2aa38e | 124 | qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *vha, struct req_que *req) |
1da177e4 LT |
125 | { |
126 | cont_a64_entry_t *cont_pkt; | |
127 | ||
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. */ | |
8ae6d9c7 GM |
140 | *((uint32_t *)(&cont_pkt->entry_type)) = IS_QLAFX00(vha->hw) ? |
141 | __constant_cpu_to_le32(CONTINUE_A64_TYPE_FX00) : | |
1da177e4 LT |
142 | __constant_cpu_to_le32(CONTINUE_A64_TYPE); |
143 | ||
144 | return (cont_pkt); | |
145 | } | |
146 | ||
bad75002 AE |
147 | static inline int |
148 | qla24xx_configure_prot_mode(srb_t *sp, uint16_t *fw_prot_opts) | |
149 | { | |
9ba56b95 GM |
150 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
151 | uint8_t guard = scsi_host_get_guard(cmd->device->host); | |
bad75002 | 152 | |
bad75002 AE |
153 | /* We always use DIFF Bundling for best performance */ |
154 | *fw_prot_opts = 0; | |
155 | ||
156 | /* Translate SCSI opcode to a protection opcode */ | |
9ba56b95 | 157 | switch (scsi_get_prot_op(cmd)) { |
bad75002 AE |
158 | case SCSI_PROT_READ_STRIP: |
159 | *fw_prot_opts |= PO_MODE_DIF_REMOVE; | |
160 | break; | |
161 | case SCSI_PROT_WRITE_INSERT: | |
162 | *fw_prot_opts |= PO_MODE_DIF_INSERT; | |
163 | break; | |
164 | case SCSI_PROT_READ_INSERT: | |
165 | *fw_prot_opts |= PO_MODE_DIF_INSERT; | |
166 | break; | |
167 | case SCSI_PROT_WRITE_STRIP: | |
168 | *fw_prot_opts |= PO_MODE_DIF_REMOVE; | |
169 | break; | |
170 | case SCSI_PROT_READ_PASS: | |
bad75002 | 171 | case SCSI_PROT_WRITE_PASS: |
9e522cd8 AE |
172 | if (guard & SHOST_DIX_GUARD_IP) |
173 | *fw_prot_opts |= PO_MODE_DIF_TCP_CKSUM; | |
174 | else | |
175 | *fw_prot_opts |= PO_MODE_DIF_PASS; | |
bad75002 AE |
176 | break; |
177 | default: /* Normal Request */ | |
178 | *fw_prot_opts |= PO_MODE_DIF_PASS; | |
179 | break; | |
180 | } | |
181 | ||
9ba56b95 | 182 | return scsi_prot_sg_count(cmd); |
bad75002 AE |
183 | } |
184 | ||
185 | /* | |
1da177e4 LT |
186 | * qla2x00_build_scsi_iocbs_32() - Build IOCB command utilizing 32bit |
187 | * capable IOCB types. | |
188 | * | |
189 | * @sp: SRB command to process | |
190 | * @cmd_pkt: Command type 2 IOCB | |
191 | * @tot_dsds: Total number of segments to transfer | |
192 | */ | |
193 | void qla2x00_build_scsi_iocbs_32(srb_t *sp, cmd_entry_t *cmd_pkt, | |
194 | uint16_t tot_dsds) | |
195 | { | |
196 | uint16_t avail_dsds; | |
197 | uint32_t *cur_dsd; | |
e315cd28 | 198 | scsi_qla_host_t *vha; |
1da177e4 | 199 | struct scsi_cmnd *cmd; |
385d70b4 FT |
200 | struct scatterlist *sg; |
201 | int i; | |
1da177e4 | 202 | |
9ba56b95 | 203 | cmd = GET_CMD_SP(sp); |
1da177e4 LT |
204 | |
205 | /* Update entry type to indicate Command Type 2 IOCB */ | |
206 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
207 | __constant_cpu_to_le32(COMMAND_TYPE); | |
208 | ||
209 | /* No data transfer */ | |
385d70b4 | 210 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { |
1da177e4 LT |
211 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
212 | return; | |
213 | } | |
214 | ||
444786d7 | 215 | vha = sp->fcport->vha; |
49fd462a | 216 | cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); |
1da177e4 LT |
217 | |
218 | /* Three DSDs are available in the Command Type 2 IOCB */ | |
219 | avail_dsds = 3; | |
220 | cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address; | |
221 | ||
222 | /* Load data segments */ | |
385d70b4 FT |
223 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { |
224 | cont_entry_t *cont_pkt; | |
225 | ||
226 | /* Allocate additional continuation packets? */ | |
227 | if (avail_dsds == 0) { | |
228 | /* | |
229 | * Seven DSDs are available in the Continuation | |
230 | * Type 0 IOCB. | |
231 | */ | |
67c2e93a | 232 | cont_pkt = qla2x00_prep_cont_type0_iocb(vha); |
385d70b4 FT |
233 | cur_dsd = (uint32_t *)&cont_pkt->dseg_0_address; |
234 | avail_dsds = 7; | |
1da177e4 | 235 | } |
385d70b4 FT |
236 | |
237 | *cur_dsd++ = cpu_to_le32(sg_dma_address(sg)); | |
238 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
239 | avail_dsds--; | |
1da177e4 LT |
240 | } |
241 | } | |
242 | ||
243 | /** | |
244 | * qla2x00_build_scsi_iocbs_64() - Build IOCB command utilizing 64bit | |
245 | * capable IOCB types. | |
246 | * | |
247 | * @sp: SRB command to process | |
248 | * @cmd_pkt: Command type 3 IOCB | |
249 | * @tot_dsds: Total number of segments to transfer | |
250 | */ | |
251 | void qla2x00_build_scsi_iocbs_64(srb_t *sp, cmd_entry_t *cmd_pkt, | |
252 | uint16_t tot_dsds) | |
253 | { | |
254 | uint16_t avail_dsds; | |
255 | uint32_t *cur_dsd; | |
e315cd28 | 256 | scsi_qla_host_t *vha; |
1da177e4 | 257 | struct scsi_cmnd *cmd; |
385d70b4 FT |
258 | struct scatterlist *sg; |
259 | int i; | |
1da177e4 | 260 | |
9ba56b95 | 261 | cmd = GET_CMD_SP(sp); |
1da177e4 LT |
262 | |
263 | /* Update entry type to indicate Command Type 3 IOCB */ | |
264 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
265 | __constant_cpu_to_le32(COMMAND_A64_TYPE); | |
266 | ||
267 | /* No data transfer */ | |
385d70b4 | 268 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { |
1da177e4 LT |
269 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
270 | return; | |
271 | } | |
272 | ||
444786d7 | 273 | vha = sp->fcport->vha; |
49fd462a | 274 | cmd_pkt->control_flags |= cpu_to_le16(qla2x00_get_cmd_direction(sp)); |
1da177e4 LT |
275 | |
276 | /* Two DSDs are available in the Command Type 3 IOCB */ | |
277 | avail_dsds = 2; | |
278 | cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address; | |
279 | ||
280 | /* Load data segments */ | |
385d70b4 FT |
281 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { |
282 | dma_addr_t sle_dma; | |
283 | cont_a64_entry_t *cont_pkt; | |
284 | ||
285 | /* Allocate additional continuation packets? */ | |
286 | if (avail_dsds == 0) { | |
287 | /* | |
288 | * Five DSDs are available in the Continuation | |
289 | * Type 1 IOCB. | |
290 | */ | |
0d2aa38e | 291 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); |
385d70b4 FT |
292 | cur_dsd = (uint32_t *)cont_pkt->dseg_0_address; |
293 | avail_dsds = 5; | |
1da177e4 | 294 | } |
385d70b4 FT |
295 | |
296 | sle_dma = sg_dma_address(sg); | |
297 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
298 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
299 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
300 | avail_dsds--; | |
1da177e4 LT |
301 | } |
302 | } | |
303 | ||
304 | /** | |
305 | * qla2x00_start_scsi() - Send a SCSI command to the ISP | |
306 | * @sp: command to send to the ISP | |
307 | * | |
cc3ef7bc | 308 | * Returns non-zero if a failure occurred, else zero. |
1da177e4 LT |
309 | */ |
310 | int | |
311 | qla2x00_start_scsi(srb_t *sp) | |
312 | { | |
385d70b4 | 313 | int ret, nseg; |
1da177e4 | 314 | unsigned long flags; |
e315cd28 | 315 | scsi_qla_host_t *vha; |
1da177e4 LT |
316 | struct scsi_cmnd *cmd; |
317 | uint32_t *clr_ptr; | |
318 | uint32_t index; | |
319 | uint32_t handle; | |
320 | cmd_entry_t *cmd_pkt; | |
1da177e4 LT |
321 | uint16_t cnt; |
322 | uint16_t req_cnt; | |
323 | uint16_t tot_dsds; | |
3d71644c | 324 | struct device_reg_2xxx __iomem *reg; |
e315cd28 AC |
325 | struct qla_hw_data *ha; |
326 | struct req_que *req; | |
73208dfd | 327 | struct rsp_que *rsp; |
ff2fc42e | 328 | char tag[2]; |
1da177e4 LT |
329 | |
330 | /* Setup device pointers. */ | |
331 | ret = 0; | |
444786d7 | 332 | vha = sp->fcport->vha; |
e315cd28 | 333 | ha = vha->hw; |
3d71644c | 334 | reg = &ha->iobase->isp; |
9ba56b95 | 335 | cmd = GET_CMD_SP(sp); |
73208dfd AC |
336 | req = ha->req_q_map[0]; |
337 | rsp = ha->rsp_q_map[0]; | |
83021920 | 338 | /* So we know we haven't pci_map'ed anything yet */ |
339 | tot_dsds = 0; | |
1da177e4 LT |
340 | |
341 | /* Send marker if required */ | |
e315cd28 | 342 | if (vha->marker_needed != 0) { |
7c3df132 SK |
343 | if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != |
344 | QLA_SUCCESS) { | |
1da177e4 | 345 | return (QLA_FUNCTION_FAILED); |
7c3df132 | 346 | } |
e315cd28 | 347 | vha->marker_needed = 0; |
1da177e4 LT |
348 | } |
349 | ||
350 | /* Acquire ring specific lock */ | |
c9c5ced9 | 351 | spin_lock_irqsave(&ha->hardware_lock, flags); |
1da177e4 LT |
352 | |
353 | /* Check for room in outstanding command list. */ | |
e315cd28 | 354 | handle = req->current_outstanding_cmd; |
8d93f550 | 355 | for (index = 1; index < req->num_outstanding_cmds; index++) { |
1da177e4 | 356 | handle++; |
8d93f550 | 357 | if (handle == req->num_outstanding_cmds) |
1da177e4 | 358 | handle = 1; |
e315cd28 | 359 | if (!req->outstanding_cmds[handle]) |
1da177e4 LT |
360 | break; |
361 | } | |
8d93f550 | 362 | if (index == req->num_outstanding_cmds) |
1da177e4 LT |
363 | goto queuing_error; |
364 | ||
83021920 | 365 | /* Map the sg table so we have an accurate count of sg entries needed */ |
2c3dfe3f SJ |
366 | if (scsi_sg_count(cmd)) { |
367 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
368 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
369 | if (unlikely(!nseg)) | |
370 | goto queuing_error; | |
371 | } else | |
372 | nseg = 0; | |
373 | ||
385d70b4 | 374 | tot_dsds = nseg; |
83021920 | 375 | |
1da177e4 | 376 | /* Calculate the number of request entries needed. */ |
fd34f556 | 377 | req_cnt = ha->isp_ops->calc_req_entries(tot_dsds); |
e315cd28 | 378 | if (req->cnt < (req_cnt + 2)) { |
1da177e4 | 379 | cnt = RD_REG_WORD_RELAXED(ISP_REQ_Q_OUT(ha, reg)); |
e315cd28 AC |
380 | if (req->ring_index < cnt) |
381 | req->cnt = cnt - req->ring_index; | |
1da177e4 | 382 | else |
e315cd28 AC |
383 | req->cnt = req->length - |
384 | (req->ring_index - cnt); | |
a6eb3c9f CL |
385 | /* If still no head room then bail out */ |
386 | if (req->cnt < (req_cnt + 2)) | |
387 | goto queuing_error; | |
1da177e4 | 388 | } |
1da177e4 | 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; |
9ba56b95 | 394 | 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 | 404 | /* Set target ID and LUN number*/ |
405 | SET_TARGET_ID(ha, cmd_pkt->target, sp->fcport->loop_id); | |
9ba56b95 | 406 | cmd_pkt->lun = cpu_to_le16(cmd->device->lun); |
1da177e4 LT |
407 | |
408 | /* Update tagged queuing modifier */ | |
ff2fc42e AV |
409 | if (scsi_populate_tag_msg(cmd, tag)) { |
410 | switch (tag[0]) { | |
411 | case HEAD_OF_QUEUE_TAG: | |
412 | cmd_pkt->control_flags = | |
413 | __constant_cpu_to_le16(CF_HEAD_TAG); | |
414 | break; | |
415 | case ORDERED_QUEUE_TAG: | |
416 | cmd_pkt->control_flags = | |
417 | __constant_cpu_to_le16(CF_ORDERED_TAG); | |
418 | break; | |
419 | default: | |
420 | cmd_pkt->control_flags = | |
421 | __constant_cpu_to_le16(CF_SIMPLE_TAG); | |
422 | break; | |
423 | } | |
c3ccb1d7 SK |
424 | } else { |
425 | cmd_pkt->control_flags = __constant_cpu_to_le16(CF_SIMPLE_TAG); | |
ff2fc42e | 426 | } |
1da177e4 | 427 | |
1da177e4 LT |
428 | /* Load SCSI command packet. */ |
429 | memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len); | |
385d70b4 | 430 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); |
1da177e4 LT |
431 | |
432 | /* Build IOCB segments */ | |
fd34f556 | 433 | ha->isp_ops->build_iocbs(sp, cmd_pkt, tot_dsds); |
1da177e4 LT |
434 | |
435 | /* Set total data segment count. */ | |
436 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
437 | wmb(); | |
438 | ||
439 | /* Adjust ring index. */ | |
e315cd28 AC |
440 | req->ring_index++; |
441 | if (req->ring_index == req->length) { | |
442 | req->ring_index = 0; | |
443 | req->ring_ptr = req->ring; | |
1da177e4 | 444 | } else |
e315cd28 | 445 | req->ring_ptr++; |
1da177e4 | 446 | |
1da177e4 | 447 | sp->flags |= SRB_DMA_VALID; |
1da177e4 LT |
448 | |
449 | /* Set chip new ring index. */ | |
e315cd28 | 450 | WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), req->ring_index); |
1da177e4 LT |
451 | RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, reg)); /* PCI Posting. */ |
452 | ||
4fdfefe5 | 453 | /* Manage unprocessed RIO/ZIO commands in response queue. */ |
e315cd28 | 454 | if (vha->flags.process_response_queue && |
73208dfd AC |
455 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) |
456 | qla2x00_process_response_queue(rsp); | |
4fdfefe5 | 457 | |
c9c5ced9 | 458 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
1da177e4 LT |
459 | return (QLA_SUCCESS); |
460 | ||
461 | queuing_error: | |
385d70b4 FT |
462 | if (tot_dsds) |
463 | scsi_dma_unmap(cmd); | |
464 | ||
c9c5ced9 | 465 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
1da177e4 LT |
466 | |
467 | return (QLA_FUNCTION_FAILED); | |
468 | } | |
469 | ||
5162cf0c GM |
470 | /** |
471 | * qla2x00_start_iocbs() - Execute the IOCB command | |
472 | */ | |
2d70c103 | 473 | void |
5162cf0c GM |
474 | qla2x00_start_iocbs(struct scsi_qla_host *vha, struct req_que *req) |
475 | { | |
476 | struct qla_hw_data *ha = vha->hw; | |
477 | device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id); | |
5162cf0c | 478 | |
7ec0effd | 479 | if (IS_P3P_TYPE(ha)) { |
5162cf0c GM |
480 | qla82xx_start_iocbs(vha); |
481 | } else { | |
482 | /* Adjust ring index. */ | |
483 | req->ring_index++; | |
484 | if (req->ring_index == req->length) { | |
485 | req->ring_index = 0; | |
486 | req->ring_ptr = req->ring; | |
487 | } else | |
488 | req->ring_ptr++; | |
489 | ||
490 | /* Set chip new ring index. */ | |
f73cb695 | 491 | if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha)) { |
6246b8a1 | 492 | WRT_REG_DWORD(req->req_q_in, req->ring_index); |
98878a16 | 493 | RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); |
8ae6d9c7 GM |
494 | } else if (IS_QLAFX00(ha)) { |
495 | WRT_REG_DWORD(®->ispfx00.req_q_in, req->ring_index); | |
496 | RD_REG_DWORD_RELAXED(®->ispfx00.req_q_in); | |
497 | QLAFX00_SET_HST_INTR(ha, ha->rqstq_intr_code); | |
5162cf0c GM |
498 | } else if (IS_FWI2_CAPABLE(ha)) { |
499 | WRT_REG_DWORD(®->isp24.req_q_in, req->ring_index); | |
500 | RD_REG_DWORD_RELAXED(®->isp24.req_q_in); | |
501 | } else { | |
502 | WRT_REG_WORD(ISP_REQ_Q_IN(ha, ®->isp), | |
503 | req->ring_index); | |
504 | RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, ®->isp)); | |
505 | } | |
506 | } | |
507 | } | |
508 | ||
1da177e4 LT |
509 | /** |
510 | * qla2x00_marker() - Send a marker IOCB to the firmware. | |
511 | * @ha: HA context | |
512 | * @loop_id: loop ID | |
513 | * @lun: LUN | |
514 | * @type: marker modifier | |
515 | * | |
516 | * Can be called from both normal and interrupt context. | |
517 | * | |
cc3ef7bc | 518 | * Returns non-zero if a failure occurred, else zero. |
1da177e4 | 519 | */ |
3dbe756a | 520 | static int |
73208dfd AC |
521 | __qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req, |
522 | struct rsp_que *rsp, uint16_t loop_id, | |
523 | uint16_t lun, uint8_t type) | |
1da177e4 | 524 | { |
2b6c0cee | 525 | mrk_entry_t *mrk; |
8ae6d9c7 GM |
526 | struct mrk_entry_24xx *mrk24 = NULL; |
527 | struct mrk_entry_fx00 *mrkfx = NULL; | |
528 | ||
e315cd28 AC |
529 | struct qla_hw_data *ha = vha->hw; |
530 | scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); | |
1da177e4 | 531 | |
99b8212c | 532 | req = ha->req_q_map[0]; |
fa492630 | 533 | mrk = (mrk_entry_t *)qla2x00_alloc_iocbs(vha, NULL); |
2b6c0cee | 534 | if (mrk == NULL) { |
7c3df132 SK |
535 | ql_log(ql_log_warn, base_vha, 0x3026, |
536 | "Failed to allocate Marker IOCB.\n"); | |
1da177e4 LT |
537 | |
538 | return (QLA_FUNCTION_FAILED); | |
539 | } | |
540 | ||
2b6c0cee AV |
541 | mrk->entry_type = MARKER_TYPE; |
542 | mrk->modifier = type; | |
1da177e4 | 543 | if (type != MK_SYNC_ALL) { |
8ae6d9c7 GM |
544 | if (IS_QLAFX00(ha)) { |
545 | mrkfx = (struct mrk_entry_fx00 *) mrk; | |
546 | mrkfx->handle = MAKE_HANDLE(req->id, mrkfx->handle); | |
547 | mrkfx->handle_hi = 0; | |
548 | mrkfx->tgt_id = cpu_to_le16(loop_id); | |
549 | mrkfx->lun[1] = LSB(lun); | |
550 | mrkfx->lun[2] = MSB(lun); | |
551 | host_to_fcp_swap(mrkfx->lun, sizeof(mrkfx->lun)); | |
552 | } else if (IS_FWI2_CAPABLE(ha)) { | |
2b6c0cee AV |
553 | mrk24 = (struct mrk_entry_24xx *) mrk; |
554 | mrk24->nport_handle = cpu_to_le16(loop_id); | |
555 | mrk24->lun[1] = LSB(lun); | |
556 | mrk24->lun[2] = MSB(lun); | |
b797b6de | 557 | host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun)); |
e315cd28 | 558 | mrk24->vp_index = vha->vp_idx; |
2afa19a9 | 559 | mrk24->handle = MAKE_HANDLE(req->id, mrk24->handle); |
2b6c0cee AV |
560 | } else { |
561 | SET_TARGET_ID(ha, mrk->target, loop_id); | |
562 | mrk->lun = cpu_to_le16(lun); | |
563 | } | |
1da177e4 LT |
564 | } |
565 | wmb(); | |
566 | ||
5162cf0c | 567 | qla2x00_start_iocbs(vha, req); |
1da177e4 LT |
568 | |
569 | return (QLA_SUCCESS); | |
570 | } | |
571 | ||
fa2a1ce5 | 572 | int |
73208dfd AC |
573 | qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req, |
574 | struct rsp_que *rsp, uint16_t loop_id, uint16_t lun, | |
575 | uint8_t type) | |
1da177e4 LT |
576 | { |
577 | int ret; | |
578 | unsigned long flags = 0; | |
579 | ||
73208dfd AC |
580 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); |
581 | ret = __qla2x00_marker(vha, req, rsp, loop_id, lun, type); | |
582 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); | |
1da177e4 LT |
583 | |
584 | return (ret); | |
585 | } | |
586 | ||
2d70c103 NB |
587 | /* |
588 | * qla2x00_issue_marker | |
589 | * | |
590 | * Issue marker | |
591 | * Caller CAN have hardware lock held as specified by ha_locked parameter. | |
592 | * Might release it, then reaquire. | |
593 | */ | |
594 | int qla2x00_issue_marker(scsi_qla_host_t *vha, int ha_locked) | |
595 | { | |
596 | if (ha_locked) { | |
597 | if (__qla2x00_marker(vha, vha->req, vha->req->rsp, 0, 0, | |
598 | MK_SYNC_ALL) != QLA_SUCCESS) | |
599 | return QLA_FUNCTION_FAILED; | |
600 | } else { | |
601 | if (qla2x00_marker(vha, vha->req, vha->req->rsp, 0, 0, | |
602 | MK_SYNC_ALL) != QLA_SUCCESS) | |
603 | return QLA_FUNCTION_FAILED; | |
604 | } | |
605 | vha->marker_needed = 0; | |
606 | ||
607 | return QLA_SUCCESS; | |
608 | } | |
609 | ||
5162cf0c GM |
610 | static inline int |
611 | qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt, | |
612 | uint16_t tot_dsds) | |
613 | { | |
614 | uint32_t *cur_dsd = NULL; | |
615 | scsi_qla_host_t *vha; | |
616 | struct qla_hw_data *ha; | |
617 | struct scsi_cmnd *cmd; | |
618 | struct scatterlist *cur_seg; | |
619 | uint32_t *dsd_seg; | |
620 | void *next_dsd; | |
621 | uint8_t avail_dsds; | |
622 | uint8_t first_iocb = 1; | |
623 | uint32_t dsd_list_len; | |
624 | struct dsd_dma *dsd_ptr; | |
625 | struct ct6_dsd *ctx; | |
1da177e4 | 626 | |
9ba56b95 | 627 | cmd = GET_CMD_SP(sp); |
a9083016 | 628 | |
5162cf0c GM |
629 | /* Update entry type to indicate Command Type 3 IOCB */ |
630 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
631 | __constant_cpu_to_le32(COMMAND_TYPE_6); | |
632 | ||
633 | /* No data transfer */ | |
634 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { | |
635 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); | |
636 | return 0; | |
637 | } | |
638 | ||
639 | vha = sp->fcport->vha; | |
640 | ha = vha->hw; | |
641 | ||
642 | /* Set transfer direction */ | |
643 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { | |
644 | cmd_pkt->control_flags = | |
645 | __constant_cpu_to_le16(CF_WRITE_DATA); | |
2be21fa2 | 646 | vha->qla_stats.output_bytes += scsi_bufflen(cmd); |
fabbb8df | 647 | vha->qla_stats.output_requests++; |
5162cf0c GM |
648 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { |
649 | cmd_pkt->control_flags = | |
650 | __constant_cpu_to_le16(CF_READ_DATA); | |
2be21fa2 | 651 | vha->qla_stats.input_bytes += scsi_bufflen(cmd); |
fabbb8df | 652 | vha->qla_stats.input_requests++; |
5162cf0c GM |
653 | } |
654 | ||
655 | cur_seg = scsi_sglist(cmd); | |
9ba56b95 | 656 | ctx = GET_CMD_CTX_SP(sp); |
5162cf0c GM |
657 | |
658 | while (tot_dsds) { | |
659 | avail_dsds = (tot_dsds > QLA_DSDS_PER_IOCB) ? | |
660 | QLA_DSDS_PER_IOCB : tot_dsds; | |
661 | tot_dsds -= avail_dsds; | |
662 | dsd_list_len = (avail_dsds + 1) * QLA_DSD_SIZE; | |
663 | ||
664 | dsd_ptr = list_first_entry(&ha->gbl_dsd_list, | |
665 | struct dsd_dma, list); | |
666 | next_dsd = dsd_ptr->dsd_addr; | |
667 | list_del(&dsd_ptr->list); | |
668 | ha->gbl_dsd_avail--; | |
669 | list_add_tail(&dsd_ptr->list, &ctx->dsd_list); | |
670 | ctx->dsd_use_cnt++; | |
671 | ha->gbl_dsd_inuse++; | |
672 | ||
673 | if (first_iocb) { | |
674 | first_iocb = 0; | |
675 | dsd_seg = (uint32_t *)&cmd_pkt->fcp_data_dseg_address; | |
676 | *dsd_seg++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
677 | *dsd_seg++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
678 | cmd_pkt->fcp_data_dseg_len = cpu_to_le32(dsd_list_len); | |
73208dfd | 679 | } else { |
5162cf0c GM |
680 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); |
681 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
682 | *cur_dsd++ = cpu_to_le32(dsd_list_len); | |
683 | } | |
684 | cur_dsd = (uint32_t *)next_dsd; | |
685 | while (avail_dsds) { | |
686 | dma_addr_t sle_dma; | |
687 | ||
688 | sle_dma = sg_dma_address(cur_seg); | |
689 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
690 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
691 | *cur_dsd++ = cpu_to_le32(sg_dma_len(cur_seg)); | |
692 | cur_seg = sg_next(cur_seg); | |
693 | avail_dsds--; | |
73208dfd | 694 | } |
2b6c0cee AV |
695 | } |
696 | ||
5162cf0c GM |
697 | /* Null termination */ |
698 | *cur_dsd++ = 0; | |
699 | *cur_dsd++ = 0; | |
700 | *cur_dsd++ = 0; | |
701 | cmd_pkt->control_flags |= CF_DATA_SEG_DESCR_ENABLE; | |
702 | return 0; | |
2b6c0cee AV |
703 | } |
704 | ||
5162cf0c GM |
705 | /* |
706 | * qla24xx_calc_dsd_lists() - Determine number of DSD list required | |
707 | * for Command Type 6. | |
2b6c0cee AV |
708 | * |
709 | * @dsds: number of data segment decriptors needed | |
710 | * | |
5162cf0c | 711 | * Returns the number of dsd list needed to store @dsds. |
2b6c0cee | 712 | */ |
a9083016 | 713 | inline uint16_t |
5162cf0c | 714 | qla24xx_calc_dsd_lists(uint16_t dsds) |
2b6c0cee | 715 | { |
5162cf0c | 716 | uint16_t dsd_lists = 0; |
2b6c0cee | 717 | |
5162cf0c GM |
718 | dsd_lists = (dsds/QLA_DSDS_PER_IOCB); |
719 | if (dsds % QLA_DSDS_PER_IOCB) | |
720 | dsd_lists++; | |
721 | return dsd_lists; | |
2b6c0cee AV |
722 | } |
723 | ||
5162cf0c | 724 | |
2b6c0cee AV |
725 | /** |
726 | * qla24xx_build_scsi_iocbs() - Build IOCB command utilizing Command Type 7 | |
727 | * IOCB types. | |
728 | * | |
729 | * @sp: SRB command to process | |
730 | * @cmd_pkt: Command type 3 IOCB | |
731 | * @tot_dsds: Total number of segments to transfer | |
732 | */ | |
a9083016 | 733 | inline void |
2b6c0cee AV |
734 | qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt, |
735 | uint16_t tot_dsds) | |
736 | { | |
737 | uint16_t avail_dsds; | |
738 | uint32_t *cur_dsd; | |
e315cd28 | 739 | scsi_qla_host_t *vha; |
2b6c0cee | 740 | struct scsi_cmnd *cmd; |
385d70b4 FT |
741 | struct scatterlist *sg; |
742 | int i; | |
73208dfd | 743 | struct req_que *req; |
2b6c0cee | 744 | |
9ba56b95 | 745 | cmd = GET_CMD_SP(sp); |
2b6c0cee AV |
746 | |
747 | /* Update entry type to indicate Command Type 3 IOCB */ | |
748 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
749 | __constant_cpu_to_le32(COMMAND_TYPE_7); | |
750 | ||
751 | /* No data transfer */ | |
385d70b4 | 752 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { |
2b6c0cee AV |
753 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
754 | return; | |
755 | } | |
756 | ||
444786d7 | 757 | vha = sp->fcport->vha; |
67c2e93a | 758 | req = vha->req; |
2b6c0cee AV |
759 | |
760 | /* Set transfer direction */ | |
49fd462a | 761 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { |
2b6c0cee AV |
762 | cmd_pkt->task_mgmt_flags = |
763 | __constant_cpu_to_le16(TMF_WRITE_DATA); | |
2be21fa2 | 764 | vha->qla_stats.output_bytes += scsi_bufflen(cmd); |
fabbb8df | 765 | vha->qla_stats.output_requests++; |
49fd462a | 766 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { |
2b6c0cee AV |
767 | cmd_pkt->task_mgmt_flags = |
768 | __constant_cpu_to_le16(TMF_READ_DATA); | |
2be21fa2 | 769 | vha->qla_stats.input_bytes += scsi_bufflen(cmd); |
fabbb8df | 770 | vha->qla_stats.input_requests++; |
49fd462a | 771 | } |
2b6c0cee AV |
772 | |
773 | /* One DSD is available in the Command Type 3 IOCB */ | |
774 | avail_dsds = 1; | |
775 | cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address; | |
776 | ||
777 | /* Load data segments */ | |
385d70b4 FT |
778 | |
779 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { | |
780 | dma_addr_t sle_dma; | |
781 | cont_a64_entry_t *cont_pkt; | |
782 | ||
783 | /* Allocate additional continuation packets? */ | |
784 | if (avail_dsds == 0) { | |
785 | /* | |
786 | * Five DSDs are available in the Continuation | |
787 | * Type 1 IOCB. | |
788 | */ | |
0d2aa38e | 789 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); |
385d70b4 FT |
790 | cur_dsd = (uint32_t *)cont_pkt->dseg_0_address; |
791 | avail_dsds = 5; | |
2b6c0cee | 792 | } |
385d70b4 FT |
793 | |
794 | sle_dma = sg_dma_address(sg); | |
795 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
796 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
797 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
798 | avail_dsds--; | |
2b6c0cee AV |
799 | } |
800 | } | |
801 | ||
bad75002 AE |
802 | struct fw_dif_context { |
803 | uint32_t ref_tag; | |
804 | uint16_t app_tag; | |
805 | uint8_t ref_tag_mask[4]; /* Validation/Replacement Mask*/ | |
806 | uint8_t app_tag_mask[2]; /* Validation/Replacement Mask*/ | |
807 | }; | |
808 | ||
809 | /* | |
810 | * qla24xx_set_t10dif_tags_from_cmd - Extract Ref and App tags from SCSI command | |
811 | * | |
812 | */ | |
813 | static inline void | |
e02587d7 | 814 | qla24xx_set_t10dif_tags(srb_t *sp, struct fw_dif_context *pkt, |
bad75002 AE |
815 | unsigned int protcnt) |
816 | { | |
9ba56b95 | 817 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
bad75002 AE |
818 | |
819 | switch (scsi_get_prot_type(cmd)) { | |
bad75002 | 820 | case SCSI_PROT_DIF_TYPE0: |
8cb2049c AE |
821 | /* |
822 | * No check for ql2xenablehba_err_chk, as it would be an | |
823 | * I/O error if hba tag generation is not done. | |
824 | */ | |
825 | pkt->ref_tag = cpu_to_le32((uint32_t) | |
826 | (0xffffffff & scsi_get_lba(cmd))); | |
e02587d7 AE |
827 | |
828 | if (!qla2x00_hba_err_chk_enabled(sp)) | |
829 | break; | |
830 | ||
8cb2049c AE |
831 | pkt->ref_tag_mask[0] = 0xff; |
832 | pkt->ref_tag_mask[1] = 0xff; | |
833 | pkt->ref_tag_mask[2] = 0xff; | |
834 | pkt->ref_tag_mask[3] = 0xff; | |
bad75002 AE |
835 | break; |
836 | ||
837 | /* | |
838 | * For TYPE 2 protection: 16 bit GUARD + 32 bit REF tag has to | |
839 | * match LBA in CDB + N | |
840 | */ | |
841 | case SCSI_PROT_DIF_TYPE2: | |
e02587d7 AE |
842 | pkt->app_tag = __constant_cpu_to_le16(0); |
843 | pkt->app_tag_mask[0] = 0x0; | |
844 | pkt->app_tag_mask[1] = 0x0; | |
0c470874 AE |
845 | |
846 | pkt->ref_tag = cpu_to_le32((uint32_t) | |
847 | (0xffffffff & scsi_get_lba(cmd))); | |
848 | ||
e02587d7 AE |
849 | if (!qla2x00_hba_err_chk_enabled(sp)) |
850 | break; | |
851 | ||
0c470874 AE |
852 | /* enable ALL bytes of the ref tag */ |
853 | pkt->ref_tag_mask[0] = 0xff; | |
854 | pkt->ref_tag_mask[1] = 0xff; | |
855 | pkt->ref_tag_mask[2] = 0xff; | |
856 | pkt->ref_tag_mask[3] = 0xff; | |
bad75002 AE |
857 | break; |
858 | ||
859 | /* For Type 3 protection: 16 bit GUARD only */ | |
860 | case SCSI_PROT_DIF_TYPE3: | |
861 | pkt->ref_tag_mask[0] = pkt->ref_tag_mask[1] = | |
862 | pkt->ref_tag_mask[2] = pkt->ref_tag_mask[3] = | |
863 | 0x00; | |
864 | break; | |
865 | ||
866 | /* | |
867 | * For TYpe 1 protection: 16 bit GUARD tag, 32 bit REF tag, and | |
868 | * 16 bit app tag. | |
869 | */ | |
870 | case SCSI_PROT_DIF_TYPE1: | |
e02587d7 AE |
871 | pkt->ref_tag = cpu_to_le32((uint32_t) |
872 | (0xffffffff & scsi_get_lba(cmd))); | |
873 | pkt->app_tag = __constant_cpu_to_le16(0); | |
874 | pkt->app_tag_mask[0] = 0x0; | |
875 | pkt->app_tag_mask[1] = 0x0; | |
876 | ||
877 | if (!qla2x00_hba_err_chk_enabled(sp)) | |
bad75002 AE |
878 | break; |
879 | ||
bad75002 AE |
880 | /* enable ALL bytes of the ref tag */ |
881 | pkt->ref_tag_mask[0] = 0xff; | |
882 | pkt->ref_tag_mask[1] = 0xff; | |
883 | pkt->ref_tag_mask[2] = 0xff; | |
884 | pkt->ref_tag_mask[3] = 0xff; | |
885 | break; | |
886 | } | |
bad75002 AE |
887 | } |
888 | ||
8cb2049c AE |
889 | struct qla2_sgx { |
890 | dma_addr_t dma_addr; /* OUT */ | |
891 | uint32_t dma_len; /* OUT */ | |
892 | ||
893 | uint32_t tot_bytes; /* IN */ | |
894 | struct scatterlist *cur_sg; /* IN */ | |
895 | ||
896 | /* for book keeping, bzero on initial invocation */ | |
897 | uint32_t bytes_consumed; | |
898 | uint32_t num_bytes; | |
899 | uint32_t tot_partial; | |
900 | ||
901 | /* for debugging */ | |
902 | uint32_t num_sg; | |
903 | srb_t *sp; | |
904 | }; | |
905 | ||
906 | static int | |
907 | qla24xx_get_one_block_sg(uint32_t blk_sz, struct qla2_sgx *sgx, | |
908 | uint32_t *partial) | |
909 | { | |
910 | struct scatterlist *sg; | |
911 | uint32_t cumulative_partial, sg_len; | |
912 | dma_addr_t sg_dma_addr; | |
913 | ||
914 | if (sgx->num_bytes == sgx->tot_bytes) | |
915 | return 0; | |
916 | ||
917 | sg = sgx->cur_sg; | |
918 | cumulative_partial = sgx->tot_partial; | |
919 | ||
920 | sg_dma_addr = sg_dma_address(sg); | |
921 | sg_len = sg_dma_len(sg); | |
922 | ||
923 | sgx->dma_addr = sg_dma_addr + sgx->bytes_consumed; | |
924 | ||
925 | if ((cumulative_partial + (sg_len - sgx->bytes_consumed)) >= blk_sz) { | |
926 | sgx->dma_len = (blk_sz - cumulative_partial); | |
927 | sgx->tot_partial = 0; | |
928 | sgx->num_bytes += blk_sz; | |
929 | *partial = 0; | |
930 | } else { | |
931 | sgx->dma_len = sg_len - sgx->bytes_consumed; | |
932 | sgx->tot_partial += sgx->dma_len; | |
933 | *partial = 1; | |
934 | } | |
935 | ||
936 | sgx->bytes_consumed += sgx->dma_len; | |
937 | ||
938 | if (sg_len == sgx->bytes_consumed) { | |
939 | sg = sg_next(sg); | |
940 | sgx->num_sg++; | |
941 | sgx->cur_sg = sg; | |
942 | sgx->bytes_consumed = 0; | |
943 | } | |
944 | ||
945 | return 1; | |
946 | } | |
947 | ||
948 | static int | |
949 | qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data *ha, srb_t *sp, | |
950 | uint32_t *dsd, uint16_t tot_dsds) | |
951 | { | |
952 | void *next_dsd; | |
953 | uint8_t avail_dsds = 0; | |
954 | uint32_t dsd_list_len; | |
955 | struct dsd_dma *dsd_ptr; | |
956 | struct scatterlist *sg_prot; | |
957 | uint32_t *cur_dsd = dsd; | |
958 | uint16_t used_dsds = tot_dsds; | |
959 | ||
960 | uint32_t prot_int; | |
961 | uint32_t partial; | |
962 | struct qla2_sgx sgx; | |
963 | dma_addr_t sle_dma; | |
964 | uint32_t sle_dma_len, tot_prot_dma_len = 0; | |
9ba56b95 | 965 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
8cb2049c AE |
966 | |
967 | prot_int = cmd->device->sector_size; | |
968 | ||
969 | memset(&sgx, 0, sizeof(struct qla2_sgx)); | |
9ba56b95 GM |
970 | sgx.tot_bytes = scsi_bufflen(cmd); |
971 | sgx.cur_sg = scsi_sglist(cmd); | |
8cb2049c AE |
972 | sgx.sp = sp; |
973 | ||
9ba56b95 | 974 | sg_prot = scsi_prot_sglist(cmd); |
8cb2049c AE |
975 | |
976 | while (qla24xx_get_one_block_sg(prot_int, &sgx, &partial)) { | |
977 | ||
978 | sle_dma = sgx.dma_addr; | |
979 | sle_dma_len = sgx.dma_len; | |
980 | alloc_and_fill: | |
981 | /* Allocate additional continuation packets? */ | |
982 | if (avail_dsds == 0) { | |
983 | avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? | |
984 | QLA_DSDS_PER_IOCB : used_dsds; | |
985 | dsd_list_len = (avail_dsds + 1) * 12; | |
986 | used_dsds -= avail_dsds; | |
987 | ||
988 | /* allocate tracking DS */ | |
989 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
990 | if (!dsd_ptr) | |
991 | return 1; | |
992 | ||
993 | /* allocate new list */ | |
994 | dsd_ptr->dsd_addr = next_dsd = | |
995 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, | |
996 | &dsd_ptr->dsd_list_dma); | |
997 | ||
998 | if (!next_dsd) { | |
999 | /* | |
1000 | * Need to cleanup only this dsd_ptr, rest | |
1001 | * will be done by sp_free_dma() | |
1002 | */ | |
1003 | kfree(dsd_ptr); | |
1004 | return 1; | |
1005 | } | |
1006 | ||
1007 | list_add_tail(&dsd_ptr->list, | |
9ba56b95 | 1008 | &((struct crc_context *)sp->u.scmd.ctx)->dsd_list); |
8cb2049c AE |
1009 | |
1010 | sp->flags |= SRB_CRC_CTX_DSD_VALID; | |
1011 | ||
1012 | /* add new list to cmd iocb or last list */ | |
1013 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
1014 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
1015 | *cur_dsd++ = dsd_list_len; | |
1016 | cur_dsd = (uint32_t *)next_dsd; | |
1017 | } | |
1018 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
1019 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
1020 | *cur_dsd++ = cpu_to_le32(sle_dma_len); | |
1021 | avail_dsds--; | |
1022 | ||
1023 | if (partial == 0) { | |
1024 | /* Got a full protection interval */ | |
1025 | sle_dma = sg_dma_address(sg_prot) + tot_prot_dma_len; | |
1026 | sle_dma_len = 8; | |
bad75002 | 1027 | |
8cb2049c AE |
1028 | tot_prot_dma_len += sle_dma_len; |
1029 | if (tot_prot_dma_len == sg_dma_len(sg_prot)) { | |
1030 | tot_prot_dma_len = 0; | |
1031 | sg_prot = sg_next(sg_prot); | |
1032 | } | |
1033 | ||
1034 | partial = 1; /* So as to not re-enter this block */ | |
1035 | goto alloc_and_fill; | |
1036 | } | |
1037 | } | |
1038 | /* Null termination */ | |
1039 | *cur_dsd++ = 0; | |
1040 | *cur_dsd++ = 0; | |
1041 | *cur_dsd++ = 0; | |
1042 | return 0; | |
1043 | } | |
5162cf0c | 1044 | |
bad75002 AE |
1045 | static int |
1046 | qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, uint32_t *dsd, | |
1047 | uint16_t tot_dsds) | |
1048 | { | |
1049 | void *next_dsd; | |
1050 | uint8_t avail_dsds = 0; | |
1051 | uint32_t dsd_list_len; | |
1052 | struct dsd_dma *dsd_ptr; | |
1053 | struct scatterlist *sg; | |
1054 | uint32_t *cur_dsd = dsd; | |
1055 | int i; | |
1056 | uint16_t used_dsds = tot_dsds; | |
9ba56b95 | 1057 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
bad75002 | 1058 | |
9ba56b95 | 1059 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { |
bad75002 AE |
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, | |
9ba56b95 | 1089 | &((struct crc_context *)sp->u.scmd.ctx)->dsd_list); |
bad75002 AE |
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); | |
9e522cd8 | 1100 | |
bad75002 AE |
1101 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); |
1102 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
1103 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
1104 | avail_dsds--; | |
1105 | ||
bad75002 AE |
1106 | } |
1107 | /* Null termination */ | |
1108 | *cur_dsd++ = 0; | |
1109 | *cur_dsd++ = 0; | |
1110 | *cur_dsd++ = 0; | |
1111 | return 0; | |
1112 | } | |
1113 | ||
1114 | static int | |
1115 | qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp, | |
1116 | uint32_t *dsd, | |
1117 | uint16_t tot_dsds) | |
1118 | { | |
1119 | void *next_dsd; | |
1120 | uint8_t avail_dsds = 0; | |
1121 | uint32_t dsd_list_len; | |
1122 | struct dsd_dma *dsd_ptr; | |
1123 | struct scatterlist *sg; | |
1124 | int i; | |
1125 | struct scsi_cmnd *cmd; | |
1126 | uint32_t *cur_dsd = dsd; | |
1127 | uint16_t used_dsds = tot_dsds; | |
bad75002 | 1128 | |
9ba56b95 | 1129 | cmd = GET_CMD_SP(sp); |
bad75002 AE |
1130 | scsi_for_each_prot_sg(cmd, sg, tot_dsds, i) { |
1131 | dma_addr_t sle_dma; | |
1132 | ||
1133 | /* Allocate additional continuation packets? */ | |
1134 | if (avail_dsds == 0) { | |
1135 | avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? | |
1136 | QLA_DSDS_PER_IOCB : used_dsds; | |
1137 | dsd_list_len = (avail_dsds + 1) * 12; | |
1138 | used_dsds -= avail_dsds; | |
1139 | ||
1140 | /* allocate tracking DS */ | |
1141 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
1142 | if (!dsd_ptr) | |
1143 | return 1; | |
1144 | ||
1145 | /* allocate new list */ | |
1146 | dsd_ptr->dsd_addr = next_dsd = | |
1147 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, | |
1148 | &dsd_ptr->dsd_list_dma); | |
1149 | ||
1150 | if (!next_dsd) { | |
1151 | /* | |
1152 | * Need to cleanup only this dsd_ptr, rest | |
1153 | * will be done by sp_free_dma() | |
1154 | */ | |
1155 | kfree(dsd_ptr); | |
1156 | return 1; | |
1157 | } | |
1158 | ||
1159 | list_add_tail(&dsd_ptr->list, | |
9ba56b95 | 1160 | &((struct crc_context *)sp->u.scmd.ctx)->dsd_list); |
bad75002 AE |
1161 | |
1162 | sp->flags |= SRB_CRC_CTX_DSD_VALID; | |
1163 | ||
1164 | /* add new list to cmd iocb or last list */ | |
1165 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
1166 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
1167 | *cur_dsd++ = dsd_list_len; | |
1168 | cur_dsd = (uint32_t *)next_dsd; | |
1169 | } | |
1170 | sle_dma = sg_dma_address(sg); | |
9e522cd8 | 1171 | |
bad75002 AE |
1172 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); |
1173 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
1174 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
1175 | ||
bad75002 AE |
1176 | avail_dsds--; |
1177 | } | |
1178 | /* Null termination */ | |
1179 | *cur_dsd++ = 0; | |
1180 | *cur_dsd++ = 0; | |
1181 | *cur_dsd++ = 0; | |
1182 | return 0; | |
1183 | } | |
1184 | ||
1185 | /** | |
1186 | * qla24xx_build_scsi_crc_2_iocbs() - Build IOCB command utilizing Command | |
1187 | * Type 6 IOCB types. | |
1188 | * | |
1189 | * @sp: SRB command to process | |
1190 | * @cmd_pkt: Command type 3 IOCB | |
1191 | * @tot_dsds: Total number of segments to transfer | |
1192 | */ | |
1193 | static inline int | |
1194 | qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt, | |
1195 | uint16_t tot_dsds, uint16_t tot_prot_dsds, uint16_t fw_prot_opts) | |
1196 | { | |
1197 | uint32_t *cur_dsd, *fcp_dl; | |
1198 | scsi_qla_host_t *vha; | |
1199 | struct scsi_cmnd *cmd; | |
bad75002 | 1200 | int sgc; |
8cb2049c | 1201 | uint32_t total_bytes = 0; |
bad75002 AE |
1202 | uint32_t data_bytes; |
1203 | uint32_t dif_bytes; | |
1204 | uint8_t bundling = 1; | |
1205 | uint16_t blk_size; | |
1206 | uint8_t *clr_ptr; | |
1207 | struct crc_context *crc_ctx_pkt = NULL; | |
1208 | struct qla_hw_data *ha; | |
1209 | uint8_t additional_fcpcdb_len; | |
1210 | uint16_t fcp_cmnd_len; | |
1211 | struct fcp_cmnd *fcp_cmnd; | |
1212 | dma_addr_t crc_ctx_dma; | |
ff2fc42e | 1213 | char tag[2]; |
bad75002 | 1214 | |
9ba56b95 | 1215 | cmd = GET_CMD_SP(sp); |
bad75002 AE |
1216 | |
1217 | sgc = 0; | |
1218 | /* Update entry type to indicate Command Type CRC_2 IOCB */ | |
1219 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
1220 | __constant_cpu_to_le32(COMMAND_TYPE_CRC_2); | |
1221 | ||
7c3df132 SK |
1222 | vha = sp->fcport->vha; |
1223 | ha = vha->hw; | |
1224 | ||
bad75002 AE |
1225 | /* No data transfer */ |
1226 | data_bytes = scsi_bufflen(cmd); | |
1227 | if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { | |
bad75002 AE |
1228 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
1229 | return QLA_SUCCESS; | |
1230 | } | |
1231 | ||
c6d39e23 | 1232 | cmd_pkt->vp_index = sp->fcport->vha->vp_idx; |
bad75002 AE |
1233 | |
1234 | /* Set transfer direction */ | |
1235 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { | |
1236 | cmd_pkt->control_flags = | |
1237 | __constant_cpu_to_le16(CF_WRITE_DATA); | |
1238 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
1239 | cmd_pkt->control_flags = | |
1240 | __constant_cpu_to_le16(CF_READ_DATA); | |
1241 | } | |
1242 | ||
9ba56b95 GM |
1243 | if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || |
1244 | (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP) || | |
1245 | (scsi_get_prot_op(cmd) == SCSI_PROT_READ_STRIP) || | |
1246 | (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_INSERT)) | |
bad75002 AE |
1247 | bundling = 0; |
1248 | ||
1249 | /* Allocate CRC context from global pool */ | |
9ba56b95 GM |
1250 | crc_ctx_pkt = sp->u.scmd.ctx = |
1251 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma); | |
bad75002 AE |
1252 | |
1253 | if (!crc_ctx_pkt) | |
1254 | goto crc_queuing_error; | |
1255 | ||
1256 | /* Zero out CTX area. */ | |
1257 | clr_ptr = (uint8_t *)crc_ctx_pkt; | |
1258 | memset(clr_ptr, 0, sizeof(*crc_ctx_pkt)); | |
1259 | ||
1260 | crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma; | |
1261 | ||
1262 | sp->flags |= SRB_CRC_CTX_DMA_VALID; | |
1263 | ||
1264 | /* Set handle */ | |
1265 | crc_ctx_pkt->handle = cmd_pkt->handle; | |
1266 | ||
1267 | INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list); | |
1268 | ||
e02587d7 | 1269 | qla24xx_set_t10dif_tags(sp, (struct fw_dif_context *) |
bad75002 AE |
1270 | &crc_ctx_pkt->ref_tag, tot_prot_dsds); |
1271 | ||
1272 | cmd_pkt->crc_context_address[0] = cpu_to_le32(LSD(crc_ctx_dma)); | |
1273 | cmd_pkt->crc_context_address[1] = cpu_to_le32(MSD(crc_ctx_dma)); | |
1274 | cmd_pkt->crc_context_len = CRC_CONTEXT_LEN_FW; | |
1275 | ||
1276 | /* Determine SCSI command length -- align to 4 byte boundary */ | |
1277 | if (cmd->cmd_len > 16) { | |
bad75002 AE |
1278 | additional_fcpcdb_len = cmd->cmd_len - 16; |
1279 | if ((cmd->cmd_len % 4) != 0) { | |
1280 | /* SCSI cmd > 16 bytes must be multiple of 4 */ | |
1281 | goto crc_queuing_error; | |
1282 | } | |
1283 | fcp_cmnd_len = 12 + cmd->cmd_len + 4; | |
1284 | } else { | |
1285 | additional_fcpcdb_len = 0; | |
1286 | fcp_cmnd_len = 12 + 16 + 4; | |
1287 | } | |
1288 | ||
1289 | fcp_cmnd = &crc_ctx_pkt->fcp_cmnd; | |
1290 | ||
1291 | fcp_cmnd->additional_cdb_len = additional_fcpcdb_len; | |
1292 | if (cmd->sc_data_direction == DMA_TO_DEVICE) | |
1293 | fcp_cmnd->additional_cdb_len |= 1; | |
1294 | else if (cmd->sc_data_direction == DMA_FROM_DEVICE) | |
1295 | fcp_cmnd->additional_cdb_len |= 2; | |
1296 | ||
9ba56b95 | 1297 | int_to_scsilun(cmd->device->lun, &fcp_cmnd->lun); |
bad75002 AE |
1298 | memcpy(fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); |
1299 | cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(fcp_cmnd_len); | |
1300 | cmd_pkt->fcp_cmnd_dseg_address[0] = cpu_to_le32( | |
1301 | LSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF)); | |
1302 | cmd_pkt->fcp_cmnd_dseg_address[1] = cpu_to_le32( | |
1303 | MSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF)); | |
65155b37 | 1304 | fcp_cmnd->task_management = 0; |
bad75002 | 1305 | |
ff2fc42e AV |
1306 | /* |
1307 | * Update tagged queuing modifier if using command tag queuing | |
1308 | */ | |
1309 | if (scsi_populate_tag_msg(cmd, tag)) { | |
1310 | switch (tag[0]) { | |
1311 | case HEAD_OF_QUEUE_TAG: | |
1312 | fcp_cmnd->task_attribute = TSK_HEAD_OF_QUEUE; | |
1313 | break; | |
1314 | case ORDERED_QUEUE_TAG: | |
1315 | fcp_cmnd->task_attribute = TSK_ORDERED; | |
1316 | break; | |
1317 | default: | |
c3ccb1d7 | 1318 | fcp_cmnd->task_attribute = TSK_SIMPLE; |
ff2fc42e AV |
1319 | break; |
1320 | } | |
1321 | } else { | |
c3ccb1d7 | 1322 | fcp_cmnd->task_attribute = TSK_SIMPLE; |
ff2fc42e AV |
1323 | } |
1324 | ||
bad75002 AE |
1325 | cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */ |
1326 | ||
bad75002 | 1327 | /* Compute dif len and adjust data len to incude protection */ |
bad75002 AE |
1328 | dif_bytes = 0; |
1329 | blk_size = cmd->device->sector_size; | |
8cb2049c AE |
1330 | dif_bytes = (data_bytes / blk_size) * 8; |
1331 | ||
9ba56b95 | 1332 | switch (scsi_get_prot_op(GET_CMD_SP(sp))) { |
8cb2049c AE |
1333 | case SCSI_PROT_READ_INSERT: |
1334 | case SCSI_PROT_WRITE_STRIP: | |
1335 | total_bytes = data_bytes; | |
1336 | data_bytes += dif_bytes; | |
1337 | break; | |
1338 | ||
1339 | case SCSI_PROT_READ_STRIP: | |
1340 | case SCSI_PROT_WRITE_INSERT: | |
1341 | case SCSI_PROT_READ_PASS: | |
1342 | case SCSI_PROT_WRITE_PASS: | |
1343 | total_bytes = data_bytes + dif_bytes; | |
1344 | break; | |
1345 | default: | |
1346 | BUG(); | |
bad75002 AE |
1347 | } |
1348 | ||
e02587d7 | 1349 | if (!qla2x00_hba_err_chk_enabled(sp)) |
bad75002 | 1350 | fw_prot_opts |= 0x10; /* Disable Guard tag checking */ |
9e522cd8 AE |
1351 | /* HBA error checking enabled */ |
1352 | else if (IS_PI_UNINIT_CAPABLE(ha)) { | |
1353 | if ((scsi_get_prot_type(GET_CMD_SP(sp)) == SCSI_PROT_DIF_TYPE1) | |
1354 | || (scsi_get_prot_type(GET_CMD_SP(sp)) == | |
1355 | SCSI_PROT_DIF_TYPE2)) | |
1356 | fw_prot_opts |= BIT_10; | |
1357 | else if (scsi_get_prot_type(GET_CMD_SP(sp)) == | |
1358 | SCSI_PROT_DIF_TYPE3) | |
1359 | fw_prot_opts |= BIT_11; | |
1360 | } | |
bad75002 AE |
1361 | |
1362 | if (!bundling) { | |
1363 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.nobundling.data_address; | |
1364 | } else { | |
1365 | /* | |
1366 | * Configure Bundling if we need to fetch interlaving | |
1367 | * protection PCI accesses | |
1368 | */ | |
1369 | fw_prot_opts |= PO_ENABLE_DIF_BUNDLING; | |
1370 | crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes); | |
1371 | crc_ctx_pkt->u.bundling.dseg_count = cpu_to_le16(tot_dsds - | |
1372 | tot_prot_dsds); | |
1373 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.data_address; | |
1374 | } | |
1375 | ||
1376 | /* Finish the common fields of CRC pkt */ | |
1377 | crc_ctx_pkt->blk_size = cpu_to_le16(blk_size); | |
1378 | crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts); | |
1379 | crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes); | |
1380 | crc_ctx_pkt->guard_seed = __constant_cpu_to_le16(0); | |
1381 | /* Fibre channel byte count */ | |
1382 | cmd_pkt->byte_count = cpu_to_le32(total_bytes); | |
1383 | fcp_dl = (uint32_t *)(crc_ctx_pkt->fcp_cmnd.cdb + 16 + | |
1384 | additional_fcpcdb_len); | |
1385 | *fcp_dl = htonl(total_bytes); | |
1386 | ||
0c470874 | 1387 | if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { |
0c470874 AE |
1388 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
1389 | return QLA_SUCCESS; | |
1390 | } | |
bad75002 AE |
1391 | /* Walks data segments */ |
1392 | ||
1393 | cmd_pkt->control_flags |= | |
1394 | __constant_cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE); | |
8cb2049c AE |
1395 | |
1396 | if (!bundling && tot_prot_dsds) { | |
1397 | if (qla24xx_walk_and_build_sglist_no_difb(ha, sp, | |
1398 | cur_dsd, tot_dsds)) | |
1399 | goto crc_queuing_error; | |
1400 | } else if (qla24xx_walk_and_build_sglist(ha, sp, cur_dsd, | |
bad75002 AE |
1401 | (tot_dsds - tot_prot_dsds))) |
1402 | goto crc_queuing_error; | |
1403 | ||
1404 | if (bundling && tot_prot_dsds) { | |
1405 | /* Walks dif segments */ | |
bad75002 AE |
1406 | cmd_pkt->control_flags |= |
1407 | __constant_cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE); | |
1408 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.dif_address; | |
1409 | if (qla24xx_walk_and_build_prot_sglist(ha, sp, cur_dsd, | |
1410 | tot_prot_dsds)) | |
1411 | goto crc_queuing_error; | |
1412 | } | |
1413 | return QLA_SUCCESS; | |
1414 | ||
1415 | crc_queuing_error: | |
bad75002 AE |
1416 | /* Cleanup will be performed by the caller */ |
1417 | ||
1418 | return QLA_FUNCTION_FAILED; | |
1419 | } | |
2b6c0cee AV |
1420 | |
1421 | /** | |
1422 | * qla24xx_start_scsi() - Send a SCSI command to the ISP | |
1423 | * @sp: command to send to the ISP | |
1424 | * | |
cc3ef7bc | 1425 | * Returns non-zero if a failure occurred, else zero. |
2b6c0cee AV |
1426 | */ |
1427 | int | |
1428 | qla24xx_start_scsi(srb_t *sp) | |
1429 | { | |
385d70b4 | 1430 | int ret, nseg; |
2b6c0cee | 1431 | unsigned long flags; |
2b6c0cee AV |
1432 | uint32_t *clr_ptr; |
1433 | uint32_t index; | |
1434 | uint32_t handle; | |
1435 | struct cmd_type_7 *cmd_pkt; | |
2b6c0cee AV |
1436 | uint16_t cnt; |
1437 | uint16_t req_cnt; | |
1438 | uint16_t tot_dsds; | |
73208dfd AC |
1439 | struct req_que *req = NULL; |
1440 | struct rsp_que *rsp = NULL; | |
9ba56b95 | 1441 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
444786d7 | 1442 | struct scsi_qla_host *vha = sp->fcport->vha; |
73208dfd | 1443 | struct qla_hw_data *ha = vha->hw; |
ff2fc42e | 1444 | char tag[2]; |
2b6c0cee AV |
1445 | |
1446 | /* Setup device pointers. */ | |
1447 | ret = 0; | |
73208dfd | 1448 | |
59e0b8b0 AC |
1449 | qla25xx_set_que(sp, &rsp); |
1450 | req = vha->req; | |
73208dfd | 1451 | |
2b6c0cee AV |
1452 | /* So we know we haven't pci_map'ed anything yet */ |
1453 | tot_dsds = 0; | |
1454 | ||
1455 | /* Send marker if required */ | |
e315cd28 | 1456 | if (vha->marker_needed != 0) { |
7c3df132 SK |
1457 | if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != |
1458 | QLA_SUCCESS) | |
2b6c0cee | 1459 | return QLA_FUNCTION_FAILED; |
e315cd28 | 1460 | vha->marker_needed = 0; |
2b6c0cee AV |
1461 | } |
1462 | ||
1463 | /* Acquire ring specific lock */ | |
e315cd28 | 1464 | spin_lock_irqsave(&ha->hardware_lock, flags); |
2b6c0cee AV |
1465 | |
1466 | /* Check for room in outstanding command list. */ | |
e315cd28 | 1467 | handle = req->current_outstanding_cmd; |
8d93f550 | 1468 | for (index = 1; index < req->num_outstanding_cmds; index++) { |
2b6c0cee | 1469 | handle++; |
8d93f550 | 1470 | if (handle == req->num_outstanding_cmds) |
2b6c0cee | 1471 | handle = 1; |
e315cd28 | 1472 | if (!req->outstanding_cmds[handle]) |
2b6c0cee AV |
1473 | break; |
1474 | } | |
8d93f550 | 1475 | if (index == req->num_outstanding_cmds) |
2b6c0cee AV |
1476 | goto queuing_error; |
1477 | ||
1478 | /* Map the sg table so we have an accurate count of sg entries needed */ | |
2c3dfe3f SJ |
1479 | if (scsi_sg_count(cmd)) { |
1480 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
1481 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
1482 | if (unlikely(!nseg)) | |
2b6c0cee | 1483 | goto queuing_error; |
2c3dfe3f SJ |
1484 | } else |
1485 | nseg = 0; | |
1486 | ||
385d70b4 | 1487 | tot_dsds = nseg; |
7c3df132 | 1488 | req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); |
e315cd28 | 1489 | if (req->cnt < (req_cnt + 2)) { |
08029990 | 1490 | cnt = RD_REG_DWORD_RELAXED(req->req_q_out); |
73208dfd | 1491 | |
e315cd28 AC |
1492 | if (req->ring_index < cnt) |
1493 | req->cnt = cnt - req->ring_index; | |
2b6c0cee | 1494 | else |
e315cd28 AC |
1495 | req->cnt = req->length - |
1496 | (req->ring_index - cnt); | |
a6eb3c9f CL |
1497 | if (req->cnt < (req_cnt + 2)) |
1498 | goto queuing_error; | |
2b6c0cee | 1499 | } |
2b6c0cee AV |
1500 | |
1501 | /* Build command packet. */ | |
e315cd28 AC |
1502 | req->current_outstanding_cmd = handle; |
1503 | req->outstanding_cmds[handle] = sp; | |
cf53b069 | 1504 | sp->handle = handle; |
9ba56b95 | 1505 | cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
e315cd28 | 1506 | req->cnt -= req_cnt; |
2b6c0cee | 1507 | |
e315cd28 | 1508 | cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; |
2afa19a9 | 1509 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); |
2b6c0cee AV |
1510 | |
1511 | /* Zero out remaining portion of packet. */ | |
72df8325 | 1512 | /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ |
2b6c0cee AV |
1513 | clr_ptr = (uint32_t *)cmd_pkt + 2; |
1514 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
1515 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
1516 | ||
1517 | /* Set NPORT-ID and LUN number*/ | |
1518 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1519 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1520 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
1521 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
c6d39e23 | 1522 | cmd_pkt->vp_index = sp->fcport->vha->vp_idx; |
2b6c0cee | 1523 | |
9ba56b95 | 1524 | int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); |
0d4be124 | 1525 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); |
2b6c0cee | 1526 | |
ff2fc42e AV |
1527 | /* Update tagged queuing modifier -- default is TSK_SIMPLE (0). */ |
1528 | if (scsi_populate_tag_msg(cmd, tag)) { | |
1529 | switch (tag[0]) { | |
1530 | case HEAD_OF_QUEUE_TAG: | |
1531 | cmd_pkt->task = TSK_HEAD_OF_QUEUE; | |
1532 | break; | |
1533 | case ORDERED_QUEUE_TAG: | |
1534 | cmd_pkt->task = TSK_ORDERED; | |
1535 | break; | |
c3ccb1d7 SK |
1536 | default: |
1537 | cmd_pkt->task = TSK_SIMPLE; | |
1538 | break; | |
ff2fc42e | 1539 | } |
c3ccb1d7 SK |
1540 | } else { |
1541 | cmd_pkt->task = TSK_SIMPLE; | |
ff2fc42e AV |
1542 | } |
1543 | ||
2b6c0cee AV |
1544 | /* Load SCSI command packet. */ |
1545 | memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); | |
1546 | host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); | |
1547 | ||
385d70b4 | 1548 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); |
2b6c0cee AV |
1549 | |
1550 | /* Build IOCB segments */ | |
1551 | qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds); | |
1552 | ||
1553 | /* Set total data segment count. */ | |
1554 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
2afa19a9 AC |
1555 | /* Specify response queue number where completion should happen */ |
1556 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
2b6c0cee | 1557 | wmb(); |
2b6c0cee | 1558 | /* Adjust ring index. */ |
e315cd28 AC |
1559 | req->ring_index++; |
1560 | if (req->ring_index == req->length) { | |
1561 | req->ring_index = 0; | |
1562 | req->ring_ptr = req->ring; | |
2b6c0cee | 1563 | } else |
e315cd28 | 1564 | req->ring_ptr++; |
2b6c0cee AV |
1565 | |
1566 | sp->flags |= SRB_DMA_VALID; | |
2b6c0cee AV |
1567 | |
1568 | /* Set chip new ring index. */ | |
08029990 AV |
1569 | WRT_REG_DWORD(req->req_q_in, req->ring_index); |
1570 | RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); | |
2b6c0cee | 1571 | |
4fdfefe5 | 1572 | /* Manage unprocessed RIO/ZIO commands in response queue. */ |
e315cd28 | 1573 | if (vha->flags.process_response_queue && |
73208dfd | 1574 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) |
2afa19a9 | 1575 | qla24xx_process_response_queue(vha, rsp); |
4fdfefe5 | 1576 | |
e315cd28 | 1577 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
2b6c0cee AV |
1578 | return QLA_SUCCESS; |
1579 | ||
1580 | queuing_error: | |
385d70b4 FT |
1581 | if (tot_dsds) |
1582 | scsi_dma_unmap(cmd); | |
1583 | ||
e315cd28 | 1584 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
2b6c0cee AV |
1585 | |
1586 | return QLA_FUNCTION_FAILED; | |
1da177e4 | 1587 | } |
68ca949c | 1588 | |
bad75002 AE |
1589 | /** |
1590 | * qla24xx_dif_start_scsi() - Send a SCSI command to the ISP | |
1591 | * @sp: command to send to the ISP | |
1592 | * | |
1593 | * Returns non-zero if a failure occurred, else zero. | |
1594 | */ | |
1595 | int | |
1596 | qla24xx_dif_start_scsi(srb_t *sp) | |
1597 | { | |
1598 | int nseg; | |
1599 | unsigned long flags; | |
1600 | uint32_t *clr_ptr; | |
1601 | uint32_t index; | |
1602 | uint32_t handle; | |
1603 | uint16_t cnt; | |
1604 | uint16_t req_cnt = 0; | |
1605 | uint16_t tot_dsds; | |
1606 | uint16_t tot_prot_dsds; | |
1607 | uint16_t fw_prot_opts = 0; | |
1608 | struct req_que *req = NULL; | |
1609 | struct rsp_que *rsp = NULL; | |
9ba56b95 | 1610 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
bad75002 AE |
1611 | struct scsi_qla_host *vha = sp->fcport->vha; |
1612 | struct qla_hw_data *ha = vha->hw; | |
1613 | struct cmd_type_crc_2 *cmd_pkt; | |
1614 | uint32_t status = 0; | |
1615 | ||
1616 | #define QDSS_GOT_Q_SPACE BIT_0 | |
1617 | ||
0c470874 AE |
1618 | /* Only process protection or >16 cdb in this routine */ |
1619 | if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) { | |
1620 | if (cmd->cmd_len <= 16) | |
1621 | return qla24xx_start_scsi(sp); | |
1622 | } | |
bad75002 AE |
1623 | |
1624 | /* Setup device pointers. */ | |
1625 | ||
1626 | qla25xx_set_que(sp, &rsp); | |
1627 | req = vha->req; | |
1628 | ||
1629 | /* So we know we haven't pci_map'ed anything yet */ | |
1630 | tot_dsds = 0; | |
1631 | ||
1632 | /* Send marker if required */ | |
1633 | if (vha->marker_needed != 0) { | |
1634 | if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != | |
1635 | QLA_SUCCESS) | |
1636 | return QLA_FUNCTION_FAILED; | |
1637 | vha->marker_needed = 0; | |
1638 | } | |
1639 | ||
1640 | /* Acquire ring specific lock */ | |
1641 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
1642 | ||
1643 | /* Check for room in outstanding command list. */ | |
1644 | handle = req->current_outstanding_cmd; | |
8d93f550 | 1645 | for (index = 1; index < req->num_outstanding_cmds; index++) { |
bad75002 | 1646 | handle++; |
8d93f550 | 1647 | if (handle == req->num_outstanding_cmds) |
bad75002 AE |
1648 | handle = 1; |
1649 | if (!req->outstanding_cmds[handle]) | |
1650 | break; | |
1651 | } | |
1652 | ||
8d93f550 | 1653 | if (index == req->num_outstanding_cmds) |
bad75002 AE |
1654 | goto queuing_error; |
1655 | ||
1656 | /* Compute number of required data segments */ | |
1657 | /* Map the sg table so we have an accurate count of sg entries needed */ | |
1658 | if (scsi_sg_count(cmd)) { | |
1659 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
1660 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
1661 | if (unlikely(!nseg)) | |
1662 | goto queuing_error; | |
1663 | else | |
1664 | sp->flags |= SRB_DMA_VALID; | |
8cb2049c AE |
1665 | |
1666 | if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || | |
1667 | (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { | |
1668 | struct qla2_sgx sgx; | |
1669 | uint32_t partial; | |
1670 | ||
1671 | memset(&sgx, 0, sizeof(struct qla2_sgx)); | |
1672 | sgx.tot_bytes = scsi_bufflen(cmd); | |
1673 | sgx.cur_sg = scsi_sglist(cmd); | |
1674 | sgx.sp = sp; | |
1675 | ||
1676 | nseg = 0; | |
1677 | while (qla24xx_get_one_block_sg( | |
1678 | cmd->device->sector_size, &sgx, &partial)) | |
1679 | nseg++; | |
1680 | } | |
bad75002 AE |
1681 | } else |
1682 | nseg = 0; | |
1683 | ||
1684 | /* number of required data segments */ | |
1685 | tot_dsds = nseg; | |
1686 | ||
1687 | /* Compute number of required protection segments */ | |
1688 | if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) { | |
1689 | nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd), | |
1690 | scsi_prot_sg_count(cmd), cmd->sc_data_direction); | |
1691 | if (unlikely(!nseg)) | |
1692 | goto queuing_error; | |
1693 | else | |
1694 | sp->flags |= SRB_CRC_PROT_DMA_VALID; | |
8cb2049c AE |
1695 | |
1696 | if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || | |
1697 | (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { | |
1698 | nseg = scsi_bufflen(cmd) / cmd->device->sector_size; | |
1699 | } | |
bad75002 AE |
1700 | } else { |
1701 | nseg = 0; | |
1702 | } | |
1703 | ||
1704 | req_cnt = 1; | |
1705 | /* Total Data and protection sg segment(s) */ | |
1706 | tot_prot_dsds = nseg; | |
1707 | tot_dsds += nseg; | |
1708 | if (req->cnt < (req_cnt + 2)) { | |
1709 | cnt = RD_REG_DWORD_RELAXED(req->req_q_out); | |
1710 | ||
1711 | if (req->ring_index < cnt) | |
1712 | req->cnt = cnt - req->ring_index; | |
1713 | else | |
1714 | req->cnt = req->length - | |
1715 | (req->ring_index - cnt); | |
a6eb3c9f CL |
1716 | if (req->cnt < (req_cnt + 2)) |
1717 | goto queuing_error; | |
bad75002 AE |
1718 | } |
1719 | ||
bad75002 AE |
1720 | status |= QDSS_GOT_Q_SPACE; |
1721 | ||
1722 | /* Build header part of command packet (excluding the OPCODE). */ | |
1723 | req->current_outstanding_cmd = handle; | |
1724 | req->outstanding_cmds[handle] = sp; | |
8cb2049c | 1725 | sp->handle = handle; |
9ba56b95 | 1726 | cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
bad75002 AE |
1727 | req->cnt -= req_cnt; |
1728 | ||
1729 | /* Fill-in common area */ | |
1730 | cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr; | |
1731 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); | |
1732 | ||
1733 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
1734 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
1735 | ||
1736 | /* Set NPORT-ID and LUN number*/ | |
1737 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1738 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1739 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
1740 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
1741 | ||
9ba56b95 | 1742 | int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); |
bad75002 AE |
1743 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); |
1744 | ||
1745 | /* Total Data and protection segment(s) */ | |
1746 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
1747 | ||
1748 | /* Build IOCB segments and adjust for data protection segments */ | |
1749 | if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *) | |
1750 | req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) != | |
1751 | QLA_SUCCESS) | |
1752 | goto queuing_error; | |
1753 | ||
1754 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
1755 | /* Specify response queue number where completion should happen */ | |
1756 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
1757 | cmd_pkt->timeout = __constant_cpu_to_le16(0); | |
1758 | wmb(); | |
1759 | ||
1760 | /* Adjust ring index. */ | |
1761 | req->ring_index++; | |
1762 | if (req->ring_index == req->length) { | |
1763 | req->ring_index = 0; | |
1764 | req->ring_ptr = req->ring; | |
1765 | } else | |
1766 | req->ring_ptr++; | |
1767 | ||
1768 | /* Set chip new ring index. */ | |
1769 | WRT_REG_DWORD(req->req_q_in, req->ring_index); | |
1770 | RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); | |
1771 | ||
1772 | /* Manage unprocessed RIO/ZIO commands in response queue. */ | |
1773 | if (vha->flags.process_response_queue && | |
1774 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) | |
1775 | qla24xx_process_response_queue(vha, rsp); | |
1776 | ||
1777 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
1778 | ||
1779 | return QLA_SUCCESS; | |
1780 | ||
1781 | queuing_error: | |
1782 | if (status & QDSS_GOT_Q_SPACE) { | |
1783 | req->outstanding_cmds[handle] = NULL; | |
1784 | req->cnt += req_cnt; | |
1785 | } | |
1786 | /* Cleanup will be performed by the caller (queuecommand) */ | |
1787 | ||
1788 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
bad75002 AE |
1789 | return QLA_FUNCTION_FAILED; |
1790 | } | |
1791 | ||
1792 | ||
59e0b8b0 | 1793 | static void qla25xx_set_que(srb_t *sp, struct rsp_que **rsp) |
68ca949c | 1794 | { |
9ba56b95 | 1795 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
68ca949c AC |
1796 | struct qla_hw_data *ha = sp->fcport->vha->hw; |
1797 | int affinity = cmd->request->cpu; | |
1798 | ||
7163ea81 | 1799 | if (ha->flags.cpu_affinity_enabled && affinity >= 0 && |
59e0b8b0 | 1800 | affinity < ha->max_rsp_queues - 1) |
68ca949c | 1801 | *rsp = ha->rsp_q_map[affinity + 1]; |
59e0b8b0 | 1802 | else |
68ca949c | 1803 | *rsp = ha->rsp_q_map[0]; |
68ca949c | 1804 | } |
ac280b67 AV |
1805 | |
1806 | /* Generic Control-SRB manipulation functions. */ | |
d94d10e7 GM |
1807 | void * |
1808 | qla2x00_alloc_iocbs(scsi_qla_host_t *vha, srb_t *sp) | |
ac280b67 | 1809 | { |
ac280b67 AV |
1810 | struct qla_hw_data *ha = vha->hw; |
1811 | struct req_que *req = ha->req_q_map[0]; | |
1812 | device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id); | |
1813 | uint32_t index, handle; | |
1814 | request_t *pkt; | |
1815 | uint16_t cnt, req_cnt; | |
1816 | ||
1817 | pkt = NULL; | |
1818 | req_cnt = 1; | |
d94d10e7 GM |
1819 | handle = 0; |
1820 | ||
1821 | if (!sp) | |
1822 | goto skip_cmd_array; | |
ac280b67 AV |
1823 | |
1824 | /* Check for room in outstanding command list. */ | |
1825 | handle = req->current_outstanding_cmd; | |
8d93f550 | 1826 | for (index = 1; req->num_outstanding_cmds; index++) { |
ac280b67 | 1827 | handle++; |
8d93f550 | 1828 | if (handle == req->num_outstanding_cmds) |
ac280b67 AV |
1829 | handle = 1; |
1830 | if (!req->outstanding_cmds[handle]) | |
1831 | break; | |
1832 | } | |
8d93f550 | 1833 | if (index == req->num_outstanding_cmds) { |
7c3df132 | 1834 | ql_log(ql_log_warn, vha, 0x700b, |
d6a03581 | 1835 | "No room on outstanding cmd array.\n"); |
ac280b67 | 1836 | goto queuing_error; |
7c3df132 | 1837 | } |
ac280b67 | 1838 | |
d94d10e7 GM |
1839 | /* Prep command array. */ |
1840 | req->current_outstanding_cmd = handle; | |
1841 | req->outstanding_cmds[handle] = sp; | |
1842 | sp->handle = handle; | |
1843 | ||
5780790e | 1844 | /* Adjust entry-counts as needed. */ |
9ba56b95 GM |
1845 | if (sp->type != SRB_SCSI_CMD) |
1846 | req_cnt = sp->iocbs; | |
5780790e | 1847 | |
d94d10e7 | 1848 | skip_cmd_array: |
ac280b67 AV |
1849 | /* Check for room on request queue. */ |
1850 | if (req->cnt < req_cnt) { | |
f73cb695 | 1851 | if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha)) |
ac280b67 | 1852 | cnt = RD_REG_DWORD(®->isp25mq.req_q_out); |
7ec0effd | 1853 | else if (IS_P3P_TYPE(ha)) |
d94d10e7 | 1854 | cnt = RD_REG_DWORD(®->isp82.req_q_out); |
ac280b67 AV |
1855 | else if (IS_FWI2_CAPABLE(ha)) |
1856 | cnt = RD_REG_DWORD(®->isp24.req_q_out); | |
8ae6d9c7 GM |
1857 | else if (IS_QLAFX00(ha)) |
1858 | cnt = RD_REG_DWORD(®->ispfx00.req_q_out); | |
ac280b67 AV |
1859 | else |
1860 | cnt = qla2x00_debounce_register( | |
1861 | ISP_REQ_Q_OUT(ha, ®->isp)); | |
1862 | ||
1863 | if (req->ring_index < cnt) | |
1864 | req->cnt = cnt - req->ring_index; | |
1865 | else | |
1866 | req->cnt = req->length - | |
1867 | (req->ring_index - cnt); | |
1868 | } | |
1869 | if (req->cnt < req_cnt) | |
1870 | goto queuing_error; | |
1871 | ||
1872 | /* Prep packet */ | |
ac280b67 | 1873 | req->cnt -= req_cnt; |
ac280b67 AV |
1874 | pkt = req->ring_ptr; |
1875 | memset(pkt, 0, REQUEST_ENTRY_SIZE); | |
8ae6d9c7 | 1876 | if (IS_QLAFX00(ha)) { |
1f8deefe SK |
1877 | WRT_REG_BYTE((void __iomem *)&pkt->entry_count, req_cnt); |
1878 | WRT_REG_WORD((void __iomem *)&pkt->handle, handle); | |
8ae6d9c7 GM |
1879 | } else { |
1880 | pkt->entry_count = req_cnt; | |
1881 | pkt->handle = handle; | |
1882 | } | |
ac280b67 AV |
1883 | |
1884 | queuing_error: | |
1885 | return pkt; | |
1886 | } | |
1887 | ||
ac280b67 AV |
1888 | static void |
1889 | qla24xx_login_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1890 | { | |
9ba56b95 | 1891 | struct srb_iocb *lio = &sp->u.iocb_cmd; |
ac280b67 AV |
1892 | |
1893 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1894 | logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI); | |
4916392b | 1895 | if (lio->u.logio.flags & SRB_LOGIN_COND_PLOGI) |
ac280b67 | 1896 | logio->control_flags |= cpu_to_le16(LCF_COND_PLOGI); |
4916392b | 1897 | if (lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI) |
ac280b67 AV |
1898 | logio->control_flags |= cpu_to_le16(LCF_SKIP_PRLI); |
1899 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1900 | logio->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1901 | logio->port_id[1] = sp->fcport->d_id.b.area; | |
1902 | logio->port_id[2] = sp->fcport->d_id.b.domain; | |
c6d39e23 | 1903 | logio->vp_index = sp->fcport->vha->vp_idx; |
ac280b67 AV |
1904 | } |
1905 | ||
1906 | static void | |
1907 | qla2x00_login_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1908 | { | |
1909 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
9ba56b95 | 1910 | struct srb_iocb *lio = &sp->u.iocb_cmd; |
ac280b67 AV |
1911 | uint16_t opts; |
1912 | ||
b963752f | 1913 | mbx->entry_type = MBX_IOCB_TYPE; |
ac280b67 AV |
1914 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); |
1915 | mbx->mb0 = cpu_to_le16(MBC_LOGIN_FABRIC_PORT); | |
4916392b MI |
1916 | opts = lio->u.logio.flags & SRB_LOGIN_COND_PLOGI ? BIT_0 : 0; |
1917 | opts |= lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI ? BIT_1 : 0; | |
ac280b67 AV |
1918 | if (HAS_EXTENDED_IDS(ha)) { |
1919 | mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); | |
1920 | mbx->mb10 = cpu_to_le16(opts); | |
1921 | } else { | |
1922 | mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | opts); | |
1923 | } | |
1924 | mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); | |
1925 | mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | | |
1926 | sp->fcport->d_id.b.al_pa); | |
c6d39e23 | 1927 | mbx->mb9 = cpu_to_le16(sp->fcport->vha->vp_idx); |
ac280b67 AV |
1928 | } |
1929 | ||
1930 | static void | |
1931 | qla24xx_logout_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1932 | { | |
1933 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1934 | logio->control_flags = | |
1935 | cpu_to_le16(LCF_COMMAND_LOGO|LCF_IMPL_LOGO); | |
1936 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1937 | logio->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1938 | logio->port_id[1] = sp->fcport->d_id.b.area; | |
1939 | logio->port_id[2] = sp->fcport->d_id.b.domain; | |
c6d39e23 | 1940 | logio->vp_index = sp->fcport->vha->vp_idx; |
ac280b67 AV |
1941 | } |
1942 | ||
1943 | static void | |
1944 | qla2x00_logout_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1945 | { | |
1946 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
1947 | ||
b963752f | 1948 | mbx->entry_type = MBX_IOCB_TYPE; |
ac280b67 AV |
1949 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); |
1950 | mbx->mb0 = cpu_to_le16(MBC_LOGOUT_FABRIC_PORT); | |
1951 | mbx->mb1 = HAS_EXTENDED_IDS(ha) ? | |
1952 | cpu_to_le16(sp->fcport->loop_id): | |
1953 | cpu_to_le16(sp->fcport->loop_id << 8); | |
1954 | mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); | |
1955 | mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | | |
1956 | sp->fcport->d_id.b.al_pa); | |
c6d39e23 | 1957 | mbx->mb9 = cpu_to_le16(sp->fcport->vha->vp_idx); |
ac280b67 AV |
1958 | /* Implicit: mbx->mbx10 = 0. */ |
1959 | } | |
1960 | ||
5ff1d584 AV |
1961 | static void |
1962 | qla24xx_adisc_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1963 | { | |
1964 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1965 | logio->control_flags = cpu_to_le16(LCF_COMMAND_ADISC); | |
1966 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
c6d39e23 | 1967 | logio->vp_index = sp->fcport->vha->vp_idx; |
5ff1d584 AV |
1968 | } |
1969 | ||
1970 | static void | |
1971 | qla2x00_adisc_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1972 | { | |
1973 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
1974 | ||
1975 | mbx->entry_type = MBX_IOCB_TYPE; | |
1976 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); | |
1977 | mbx->mb0 = cpu_to_le16(MBC_GET_PORT_DATABASE); | |
1978 | if (HAS_EXTENDED_IDS(ha)) { | |
1979 | mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); | |
1980 | mbx->mb10 = cpu_to_le16(BIT_0); | |
1981 | } else { | |
1982 | mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | BIT_0); | |
1983 | } | |
1984 | mbx->mb2 = cpu_to_le16(MSW(ha->async_pd_dma)); | |
1985 | mbx->mb3 = cpu_to_le16(LSW(ha->async_pd_dma)); | |
1986 | mbx->mb6 = cpu_to_le16(MSW(MSD(ha->async_pd_dma))); | |
1987 | mbx->mb7 = cpu_to_le16(LSW(MSD(ha->async_pd_dma))); | |
c6d39e23 | 1988 | mbx->mb9 = cpu_to_le16(sp->fcport->vha->vp_idx); |
5ff1d584 AV |
1989 | } |
1990 | ||
3822263e MI |
1991 | static void |
1992 | qla24xx_tm_iocb(srb_t *sp, struct tsk_mgmt_entry *tsk) | |
1993 | { | |
1994 | uint32_t flags; | |
1995 | unsigned int lun; | |
1996 | struct fc_port *fcport = sp->fcport; | |
1997 | scsi_qla_host_t *vha = fcport->vha; | |
1998 | struct qla_hw_data *ha = vha->hw; | |
9ba56b95 | 1999 | struct srb_iocb *iocb = &sp->u.iocb_cmd; |
3822263e MI |
2000 | struct req_que *req = vha->req; |
2001 | ||
2002 | flags = iocb->u.tmf.flags; | |
2003 | lun = iocb->u.tmf.lun; | |
2004 | ||
2005 | tsk->entry_type = TSK_MGMT_IOCB_TYPE; | |
2006 | tsk->entry_count = 1; | |
2007 | tsk->handle = MAKE_HANDLE(req->id, tsk->handle); | |
2008 | tsk->nport_handle = cpu_to_le16(fcport->loop_id); | |
2009 | tsk->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); | |
2010 | tsk->control_flags = cpu_to_le32(flags); | |
2011 | tsk->port_id[0] = fcport->d_id.b.al_pa; | |
2012 | tsk->port_id[1] = fcport->d_id.b.area; | |
2013 | tsk->port_id[2] = fcport->d_id.b.domain; | |
c6d39e23 | 2014 | tsk->vp_index = fcport->vha->vp_idx; |
3822263e MI |
2015 | |
2016 | if (flags == TCF_LUN_RESET) { | |
2017 | int_to_scsilun(lun, &tsk->lun); | |
2018 | host_to_fcp_swap((uint8_t *)&tsk->lun, | |
2019 | sizeof(tsk->lun)); | |
2020 | } | |
2021 | } | |
2022 | ||
9a069e19 GM |
2023 | static void |
2024 | qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) | |
2025 | { | |
9ba56b95 | 2026 | struct fc_bsg_job *bsg_job = sp->u.bsg_job; |
9a069e19 GM |
2027 | |
2028 | els_iocb->entry_type = ELS_IOCB_TYPE; | |
2029 | els_iocb->entry_count = 1; | |
2030 | els_iocb->sys_define = 0; | |
2031 | els_iocb->entry_status = 0; | |
2032 | els_iocb->handle = sp->handle; | |
2033 | els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
2034 | els_iocb->tx_dsd_count = __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
c6d39e23 | 2035 | els_iocb->vp_index = sp->fcport->vha->vp_idx; |
9a069e19 GM |
2036 | els_iocb->sof_type = EST_SOFI3; |
2037 | els_iocb->rx_dsd_count = __constant_cpu_to_le16(bsg_job->reply_payload.sg_cnt); | |
2038 | ||
4916392b | 2039 | els_iocb->opcode = |
9ba56b95 | 2040 | sp->type == SRB_ELS_CMD_RPT ? |
4916392b MI |
2041 | bsg_job->request->rqst_data.r_els.els_code : |
2042 | bsg_job->request->rqst_data.h_els.command_code; | |
9a069e19 GM |
2043 | els_iocb->port_id[0] = sp->fcport->d_id.b.al_pa; |
2044 | els_iocb->port_id[1] = sp->fcport->d_id.b.area; | |
2045 | els_iocb->port_id[2] = sp->fcport->d_id.b.domain; | |
2046 | els_iocb->control_flags = 0; | |
2047 | els_iocb->rx_byte_count = | |
2048 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
2049 | els_iocb->tx_byte_count = | |
2050 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
2051 | ||
2052 | els_iocb->tx_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2053 | (bsg_job->request_payload.sg_list))); | |
2054 | els_iocb->tx_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2055 | (bsg_job->request_payload.sg_list))); | |
2056 | els_iocb->tx_len = cpu_to_le32(sg_dma_len | |
2057 | (bsg_job->request_payload.sg_list)); | |
2058 | ||
2059 | els_iocb->rx_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2060 | (bsg_job->reply_payload.sg_list))); | |
2061 | els_iocb->rx_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2062 | (bsg_job->reply_payload.sg_list))); | |
2063 | els_iocb->rx_len = cpu_to_le32(sg_dma_len | |
2064 | (bsg_job->reply_payload.sg_list)); | |
fabbb8df JC |
2065 | |
2066 | sp->fcport->vha->qla_stats.control_requests++; | |
9a069e19 GM |
2067 | } |
2068 | ||
9bc4f4fb HZ |
2069 | static void |
2070 | qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb) | |
2071 | { | |
2072 | uint16_t avail_dsds; | |
2073 | uint32_t *cur_dsd; | |
2074 | struct scatterlist *sg; | |
2075 | int index; | |
2076 | uint16_t tot_dsds; | |
2077 | scsi_qla_host_t *vha = sp->fcport->vha; | |
2078 | struct qla_hw_data *ha = vha->hw; | |
9ba56b95 | 2079 | struct fc_bsg_job *bsg_job = sp->u.bsg_job; |
9bc4f4fb HZ |
2080 | int loop_iterartion = 0; |
2081 | int cont_iocb_prsnt = 0; | |
2082 | int entry_count = 1; | |
2083 | ||
2084 | memset(ct_iocb, 0, sizeof(ms_iocb_entry_t)); | |
2085 | ct_iocb->entry_type = CT_IOCB_TYPE; | |
2086 | ct_iocb->entry_status = 0; | |
2087 | ct_iocb->handle1 = sp->handle; | |
2088 | SET_TARGET_ID(ha, ct_iocb->loop_id, sp->fcport->loop_id); | |
2089 | ct_iocb->status = __constant_cpu_to_le16(0); | |
2090 | ct_iocb->control_flags = __constant_cpu_to_le16(0); | |
2091 | ct_iocb->timeout = 0; | |
2092 | ct_iocb->cmd_dsd_count = | |
2093 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
2094 | ct_iocb->total_dsd_count = | |
2095 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt + 1); | |
2096 | ct_iocb->req_bytecount = | |
2097 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
2098 | ct_iocb->rsp_bytecount = | |
2099 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
2100 | ||
2101 | ct_iocb->dseg_req_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2102 | (bsg_job->request_payload.sg_list))); | |
2103 | ct_iocb->dseg_req_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2104 | (bsg_job->request_payload.sg_list))); | |
2105 | ct_iocb->dseg_req_length = ct_iocb->req_bytecount; | |
2106 | ||
2107 | ct_iocb->dseg_rsp_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2108 | (bsg_job->reply_payload.sg_list))); | |
2109 | ct_iocb->dseg_rsp_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2110 | (bsg_job->reply_payload.sg_list))); | |
2111 | ct_iocb->dseg_rsp_length = ct_iocb->rsp_bytecount; | |
2112 | ||
2113 | avail_dsds = 1; | |
2114 | cur_dsd = (uint32_t *)ct_iocb->dseg_rsp_address; | |
2115 | index = 0; | |
2116 | tot_dsds = bsg_job->reply_payload.sg_cnt; | |
2117 | ||
2118 | for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) { | |
2119 | dma_addr_t sle_dma; | |
2120 | cont_a64_entry_t *cont_pkt; | |
2121 | ||
2122 | /* Allocate additional continuation packets? */ | |
2123 | if (avail_dsds == 0) { | |
2124 | /* | |
2125 | * Five DSDs are available in the Cont. | |
2126 | * Type 1 IOCB. | |
2127 | */ | |
0d2aa38e GM |
2128 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, |
2129 | vha->hw->req_q_map[0]); | |
9bc4f4fb HZ |
2130 | cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; |
2131 | avail_dsds = 5; | |
2132 | cont_iocb_prsnt = 1; | |
2133 | entry_count++; | |
2134 | } | |
2135 | ||
2136 | sle_dma = sg_dma_address(sg); | |
2137 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
2138 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
2139 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
2140 | loop_iterartion++; | |
2141 | avail_dsds--; | |
2142 | } | |
2143 | ct_iocb->entry_count = entry_count; | |
fabbb8df JC |
2144 | |
2145 | sp->fcport->vha->qla_stats.control_requests++; | |
9bc4f4fb HZ |
2146 | } |
2147 | ||
9a069e19 GM |
2148 | static void |
2149 | qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb) | |
2150 | { | |
2151 | uint16_t avail_dsds; | |
2152 | uint32_t *cur_dsd; | |
2153 | struct scatterlist *sg; | |
2154 | int index; | |
2155 | uint16_t tot_dsds; | |
2156 | scsi_qla_host_t *vha = sp->fcport->vha; | |
0d2aa38e | 2157 | struct qla_hw_data *ha = vha->hw; |
9ba56b95 | 2158 | struct fc_bsg_job *bsg_job = sp->u.bsg_job; |
9a069e19 GM |
2159 | int loop_iterartion = 0; |
2160 | int cont_iocb_prsnt = 0; | |
2161 | int entry_count = 1; | |
2162 | ||
2163 | ct_iocb->entry_type = CT_IOCB_TYPE; | |
2164 | ct_iocb->entry_status = 0; | |
2165 | ct_iocb->sys_define = 0; | |
2166 | ct_iocb->handle = sp->handle; | |
2167 | ||
2168 | ct_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
c6d39e23 | 2169 | ct_iocb->vp_index = sp->fcport->vha->vp_idx; |
9a069e19 GM |
2170 | ct_iocb->comp_status = __constant_cpu_to_le16(0); |
2171 | ||
2172 | ct_iocb->cmd_dsd_count = | |
2173 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
2174 | ct_iocb->timeout = 0; | |
2175 | ct_iocb->rsp_dsd_count = | |
2176 | __constant_cpu_to_le16(bsg_job->reply_payload.sg_cnt); | |
2177 | ct_iocb->rsp_byte_count = | |
2178 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
2179 | ct_iocb->cmd_byte_count = | |
2180 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
2181 | ct_iocb->dseg_0_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2182 | (bsg_job->request_payload.sg_list))); | |
2183 | ct_iocb->dseg_0_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2184 | (bsg_job->request_payload.sg_list))); | |
2185 | ct_iocb->dseg_0_len = cpu_to_le32(sg_dma_len | |
2186 | (bsg_job->request_payload.sg_list)); | |
2187 | ||
2188 | avail_dsds = 1; | |
2189 | cur_dsd = (uint32_t *)ct_iocb->dseg_1_address; | |
2190 | index = 0; | |
2191 | tot_dsds = bsg_job->reply_payload.sg_cnt; | |
2192 | ||
2193 | for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) { | |
2194 | dma_addr_t sle_dma; | |
2195 | cont_a64_entry_t *cont_pkt; | |
2196 | ||
2197 | /* Allocate additional continuation packets? */ | |
2198 | if (avail_dsds == 0) { | |
2199 | /* | |
2200 | * Five DSDs are available in the Cont. | |
2201 | * Type 1 IOCB. | |
2202 | */ | |
0d2aa38e GM |
2203 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, |
2204 | ha->req_q_map[0]); | |
9a069e19 GM |
2205 | cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; |
2206 | avail_dsds = 5; | |
2207 | cont_iocb_prsnt = 1; | |
2208 | entry_count++; | |
2209 | } | |
2210 | ||
2211 | sle_dma = sg_dma_address(sg); | |
2212 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
2213 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
2214 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
2215 | loop_iterartion++; | |
2216 | avail_dsds--; | |
2217 | } | |
2218 | ct_iocb->entry_count = entry_count; | |
2219 | } | |
2220 | ||
5162cf0c GM |
2221 | /* |
2222 | * qla82xx_start_scsi() - Send a SCSI command to the ISP | |
2223 | * @sp: command to send to the ISP | |
2224 | * | |
2225 | * Returns non-zero if a failure occurred, else zero. | |
2226 | */ | |
2227 | int | |
2228 | qla82xx_start_scsi(srb_t *sp) | |
2229 | { | |
2230 | int ret, nseg; | |
2231 | unsigned long flags; | |
2232 | struct scsi_cmnd *cmd; | |
2233 | uint32_t *clr_ptr; | |
2234 | uint32_t index; | |
2235 | uint32_t handle; | |
2236 | uint16_t cnt; | |
2237 | uint16_t req_cnt; | |
2238 | uint16_t tot_dsds; | |
2239 | struct device_reg_82xx __iomem *reg; | |
2240 | uint32_t dbval; | |
2241 | uint32_t *fcp_dl; | |
2242 | uint8_t additional_cdb_len; | |
2243 | struct ct6_dsd *ctx; | |
2244 | struct scsi_qla_host *vha = sp->fcport->vha; | |
2245 | struct qla_hw_data *ha = vha->hw; | |
2246 | struct req_que *req = NULL; | |
2247 | struct rsp_que *rsp = NULL; | |
9ba56b95 | 2248 | char tag[2]; |
5162cf0c GM |
2249 | |
2250 | /* Setup device pointers. */ | |
2251 | ret = 0; | |
2252 | reg = &ha->iobase->isp82; | |
9ba56b95 | 2253 | cmd = GET_CMD_SP(sp); |
5162cf0c GM |
2254 | req = vha->req; |
2255 | rsp = ha->rsp_q_map[0]; | |
2256 | ||
2257 | /* So we know we haven't pci_map'ed anything yet */ | |
2258 | tot_dsds = 0; | |
2259 | ||
2260 | dbval = 0x04 | (ha->portnum << 5); | |
2261 | ||
2262 | /* Send marker if required */ | |
2263 | if (vha->marker_needed != 0) { | |
2264 | if (qla2x00_marker(vha, req, | |
2265 | rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) { | |
2266 | ql_log(ql_log_warn, vha, 0x300c, | |
2267 | "qla2x00_marker failed for cmd=%p.\n", cmd); | |
2268 | return QLA_FUNCTION_FAILED; | |
2269 | } | |
2270 | vha->marker_needed = 0; | |
2271 | } | |
2272 | ||
2273 | /* Acquire ring specific lock */ | |
2274 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
2275 | ||
2276 | /* Check for room in outstanding command list. */ | |
2277 | handle = req->current_outstanding_cmd; | |
8d93f550 | 2278 | for (index = 1; index < req->num_outstanding_cmds; index++) { |
5162cf0c | 2279 | handle++; |
8d93f550 | 2280 | if (handle == req->num_outstanding_cmds) |
5162cf0c GM |
2281 | handle = 1; |
2282 | if (!req->outstanding_cmds[handle]) | |
2283 | break; | |
2284 | } | |
8d93f550 | 2285 | if (index == req->num_outstanding_cmds) |
5162cf0c GM |
2286 | goto queuing_error; |
2287 | ||
2288 | /* Map the sg table so we have an accurate count of sg entries needed */ | |
2289 | if (scsi_sg_count(cmd)) { | |
2290 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
2291 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
2292 | if (unlikely(!nseg)) | |
2293 | goto queuing_error; | |
2294 | } else | |
2295 | nseg = 0; | |
2296 | ||
2297 | tot_dsds = nseg; | |
2298 | ||
2299 | if (tot_dsds > ql2xshiftctondsd) { | |
2300 | struct cmd_type_6 *cmd_pkt; | |
2301 | uint16_t more_dsd_lists = 0; | |
2302 | struct dsd_dma *dsd_ptr; | |
2303 | uint16_t i; | |
2304 | ||
2305 | more_dsd_lists = qla24xx_calc_dsd_lists(tot_dsds); | |
2306 | if ((more_dsd_lists + ha->gbl_dsd_inuse) >= NUM_DSD_CHAIN) { | |
2307 | ql_dbg(ql_dbg_io, vha, 0x300d, | |
2308 | "Num of DSD list %d is than %d for cmd=%p.\n", | |
2309 | more_dsd_lists + ha->gbl_dsd_inuse, NUM_DSD_CHAIN, | |
2310 | cmd); | |
2311 | goto queuing_error; | |
2312 | } | |
2313 | ||
2314 | if (more_dsd_lists <= ha->gbl_dsd_avail) | |
2315 | goto sufficient_dsds; | |
2316 | else | |
2317 | more_dsd_lists -= ha->gbl_dsd_avail; | |
2318 | ||
2319 | for (i = 0; i < more_dsd_lists; i++) { | |
2320 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
2321 | if (!dsd_ptr) { | |
2322 | ql_log(ql_log_fatal, vha, 0x300e, | |
2323 | "Failed to allocate memory for dsd_dma " | |
2324 | "for cmd=%p.\n", cmd); | |
2325 | goto queuing_error; | |
2326 | } | |
2327 | ||
2328 | dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool, | |
2329 | GFP_ATOMIC, &dsd_ptr->dsd_list_dma); | |
2330 | if (!dsd_ptr->dsd_addr) { | |
2331 | kfree(dsd_ptr); | |
2332 | ql_log(ql_log_fatal, vha, 0x300f, | |
2333 | "Failed to allocate memory for dsd_addr " | |
2334 | "for cmd=%p.\n", cmd); | |
2335 | goto queuing_error; | |
2336 | } | |
2337 | list_add_tail(&dsd_ptr->list, &ha->gbl_dsd_list); | |
2338 | ha->gbl_dsd_avail++; | |
2339 | } | |
2340 | ||
2341 | sufficient_dsds: | |
2342 | req_cnt = 1; | |
2343 | ||
2344 | if (req->cnt < (req_cnt + 2)) { | |
2345 | cnt = (uint16_t)RD_REG_DWORD_RELAXED( | |
2346 | ®->req_q_out[0]); | |
2347 | if (req->ring_index < cnt) | |
2348 | req->cnt = cnt - req->ring_index; | |
2349 | else | |
2350 | req->cnt = req->length - | |
2351 | (req->ring_index - cnt); | |
a6eb3c9f CL |
2352 | if (req->cnt < (req_cnt + 2)) |
2353 | goto queuing_error; | |
5162cf0c GM |
2354 | } |
2355 | ||
9ba56b95 GM |
2356 | ctx = sp->u.scmd.ctx = |
2357 | mempool_alloc(ha->ctx_mempool, GFP_ATOMIC); | |
2358 | if (!ctx) { | |
5162cf0c GM |
2359 | ql_log(ql_log_fatal, vha, 0x3010, |
2360 | "Failed to allocate ctx for cmd=%p.\n", cmd); | |
2361 | goto queuing_error; | |
2362 | } | |
9ba56b95 | 2363 | |
5162cf0c GM |
2364 | memset(ctx, 0, sizeof(struct ct6_dsd)); |
2365 | ctx->fcp_cmnd = dma_pool_alloc(ha->fcp_cmnd_dma_pool, | |
2366 | GFP_ATOMIC, &ctx->fcp_cmnd_dma); | |
2367 | if (!ctx->fcp_cmnd) { | |
2368 | ql_log(ql_log_fatal, vha, 0x3011, | |
2369 | "Failed to allocate fcp_cmnd for cmd=%p.\n", cmd); | |
841f97bf | 2370 | goto queuing_error; |
5162cf0c GM |
2371 | } |
2372 | ||
2373 | /* Initialize the DSD list and dma handle */ | |
2374 | INIT_LIST_HEAD(&ctx->dsd_list); | |
2375 | ctx->dsd_use_cnt = 0; | |
2376 | ||
2377 | if (cmd->cmd_len > 16) { | |
2378 | additional_cdb_len = cmd->cmd_len - 16; | |
2379 | if ((cmd->cmd_len % 4) != 0) { | |
2380 | /* SCSI command bigger than 16 bytes must be | |
2381 | * multiple of 4 | |
2382 | */ | |
2383 | ql_log(ql_log_warn, vha, 0x3012, | |
2384 | "scsi cmd len %d not multiple of 4 " | |
2385 | "for cmd=%p.\n", cmd->cmd_len, cmd); | |
2386 | goto queuing_error_fcp_cmnd; | |
2387 | } | |
2388 | ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4; | |
2389 | } else { | |
2390 | additional_cdb_len = 0; | |
2391 | ctx->fcp_cmnd_len = 12 + 16 + 4; | |
2392 | } | |
2393 | ||
2394 | cmd_pkt = (struct cmd_type_6 *)req->ring_ptr; | |
2395 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); | |
2396 | ||
2397 | /* Zero out remaining portion of packet. */ | |
2398 | /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ | |
2399 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
2400 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
2401 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
2402 | ||
2403 | /* Set NPORT-ID and LUN number*/ | |
2404 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
2405 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
2406 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
2407 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
c6d39e23 | 2408 | cmd_pkt->vp_index = sp->fcport->vha->vp_idx; |
5162cf0c GM |
2409 | |
2410 | /* Build IOCB segments */ | |
2411 | if (qla24xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds)) | |
2412 | goto queuing_error_fcp_cmnd; | |
2413 | ||
9ba56b95 | 2414 | int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); |
5162cf0c GM |
2415 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); |
2416 | ||
2417 | /* build FCP_CMND IU */ | |
2418 | memset(ctx->fcp_cmnd, 0, sizeof(struct fcp_cmnd)); | |
9ba56b95 | 2419 | int_to_scsilun(cmd->device->lun, &ctx->fcp_cmnd->lun); |
5162cf0c GM |
2420 | ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len; |
2421 | ||
2422 | if (cmd->sc_data_direction == DMA_TO_DEVICE) | |
2423 | ctx->fcp_cmnd->additional_cdb_len |= 1; | |
2424 | else if (cmd->sc_data_direction == DMA_FROM_DEVICE) | |
2425 | ctx->fcp_cmnd->additional_cdb_len |= 2; | |
2426 | ||
2427 | /* | |
2428 | * Update tagged queuing modifier -- default is TSK_SIMPLE (0). | |
2429 | */ | |
2430 | if (scsi_populate_tag_msg(cmd, tag)) { | |
2431 | switch (tag[0]) { | |
2432 | case HEAD_OF_QUEUE_TAG: | |
2433 | ctx->fcp_cmnd->task_attribute = | |
2434 | TSK_HEAD_OF_QUEUE; | |
2435 | break; | |
2436 | case ORDERED_QUEUE_TAG: | |
2437 | ctx->fcp_cmnd->task_attribute = | |
2438 | TSK_ORDERED; | |
2439 | break; | |
2440 | } | |
2441 | } | |
2442 | ||
a00f6296 SK |
2443 | /* Populate the FCP_PRIO. */ |
2444 | if (ha->flags.fcp_prio_enabled) | |
2445 | ctx->fcp_cmnd->task_attribute |= | |
2446 | sp->fcport->fcp_prio << 3; | |
2447 | ||
5162cf0c GM |
2448 | memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); |
2449 | ||
2450 | fcp_dl = (uint32_t *)(ctx->fcp_cmnd->cdb + 16 + | |
2451 | additional_cdb_len); | |
2452 | *fcp_dl = htonl((uint32_t)scsi_bufflen(cmd)); | |
2453 | ||
2454 | cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len); | |
2455 | cmd_pkt->fcp_cmnd_dseg_address[0] = | |
2456 | cpu_to_le32(LSD(ctx->fcp_cmnd_dma)); | |
2457 | cmd_pkt->fcp_cmnd_dseg_address[1] = | |
2458 | cpu_to_le32(MSD(ctx->fcp_cmnd_dma)); | |
2459 | ||
2460 | sp->flags |= SRB_FCP_CMND_DMA_VALID; | |
2461 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); | |
2462 | /* Set total data segment count. */ | |
2463 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
2464 | /* Specify response queue number where | |
2465 | * completion should happen | |
2466 | */ | |
2467 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
2468 | } else { | |
2469 | struct cmd_type_7 *cmd_pkt; | |
2470 | req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); | |
2471 | if (req->cnt < (req_cnt + 2)) { | |
2472 | cnt = (uint16_t)RD_REG_DWORD_RELAXED( | |
2473 | ®->req_q_out[0]); | |
2474 | if (req->ring_index < cnt) | |
2475 | req->cnt = cnt - req->ring_index; | |
2476 | else | |
2477 | req->cnt = req->length - | |
2478 | (req->ring_index - cnt); | |
2479 | } | |
2480 | if (req->cnt < (req_cnt + 2)) | |
2481 | goto queuing_error; | |
2482 | ||
2483 | cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; | |
2484 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); | |
2485 | ||
2486 | /* Zero out remaining portion of packet. */ | |
2487 | /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/ | |
2488 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
2489 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
2490 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
2491 | ||
2492 | /* Set NPORT-ID and LUN number*/ | |
2493 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
2494 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
2495 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
2496 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
c6d39e23 | 2497 | cmd_pkt->vp_index = sp->fcport->vha->vp_idx; |
5162cf0c | 2498 | |
9ba56b95 | 2499 | int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); |
5162cf0c | 2500 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, |
9ba56b95 | 2501 | sizeof(cmd_pkt->lun)); |
5162cf0c GM |
2502 | |
2503 | /* | |
2504 | * Update tagged queuing modifier -- default is TSK_SIMPLE (0). | |
2505 | */ | |
2506 | if (scsi_populate_tag_msg(cmd, tag)) { | |
2507 | switch (tag[0]) { | |
2508 | case HEAD_OF_QUEUE_TAG: | |
2509 | cmd_pkt->task = TSK_HEAD_OF_QUEUE; | |
2510 | break; | |
2511 | case ORDERED_QUEUE_TAG: | |
2512 | cmd_pkt->task = TSK_ORDERED; | |
2513 | break; | |
2514 | } | |
2515 | } | |
2516 | ||
a00f6296 SK |
2517 | /* Populate the FCP_PRIO. */ |
2518 | if (ha->flags.fcp_prio_enabled) | |
2519 | cmd_pkt->task |= sp->fcport->fcp_prio << 3; | |
2520 | ||
5162cf0c GM |
2521 | /* Load SCSI command packet. */ |
2522 | memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); | |
2523 | host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); | |
2524 | ||
2525 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); | |
2526 | ||
2527 | /* Build IOCB segments */ | |
2528 | qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds); | |
2529 | ||
2530 | /* Set total data segment count. */ | |
2531 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
2532 | /* Specify response queue number where | |
2533 | * completion should happen. | |
2534 | */ | |
2535 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
2536 | ||
2537 | } | |
2538 | /* Build command packet. */ | |
2539 | req->current_outstanding_cmd = handle; | |
2540 | req->outstanding_cmds[handle] = sp; | |
2541 | sp->handle = handle; | |
9ba56b95 | 2542 | cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
5162cf0c GM |
2543 | req->cnt -= req_cnt; |
2544 | wmb(); | |
2545 | ||
2546 | /* Adjust ring index. */ | |
2547 | req->ring_index++; | |
2548 | if (req->ring_index == req->length) { | |
2549 | req->ring_index = 0; | |
2550 | req->ring_ptr = req->ring; | |
2551 | } else | |
2552 | req->ring_ptr++; | |
2553 | ||
2554 | sp->flags |= SRB_DMA_VALID; | |
2555 | ||
2556 | /* Set chip new ring index. */ | |
2557 | /* write, read and verify logic */ | |
2558 | dbval = dbval | (req->id << 8) | (req->ring_index << 16); | |
2559 | if (ql2xdbwr) | |
2560 | qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval); | |
2561 | else { | |
2562 | WRT_REG_DWORD( | |
2563 | (unsigned long __iomem *)ha->nxdb_wr_ptr, | |
2564 | dbval); | |
2565 | wmb(); | |
fa492630 | 2566 | while (RD_REG_DWORD((void __iomem *)ha->nxdb_rd_ptr) != dbval) { |
5162cf0c GM |
2567 | WRT_REG_DWORD( |
2568 | (unsigned long __iomem *)ha->nxdb_wr_ptr, | |
2569 | dbval); | |
2570 | wmb(); | |
2571 | } | |
2572 | } | |
2573 | ||
2574 | /* Manage unprocessed RIO/ZIO commands in response queue. */ | |
2575 | if (vha->flags.process_response_queue && | |
2576 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) | |
2577 | qla24xx_process_response_queue(vha, rsp); | |
2578 | ||
2579 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2580 | return QLA_SUCCESS; | |
2581 | ||
2582 | queuing_error_fcp_cmnd: | |
2583 | dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma); | |
2584 | queuing_error: | |
2585 | if (tot_dsds) | |
2586 | scsi_dma_unmap(cmd); | |
2587 | ||
9ba56b95 GM |
2588 | if (sp->u.scmd.ctx) { |
2589 | mempool_free(sp->u.scmd.ctx, ha->ctx_mempool); | |
2590 | sp->u.scmd.ctx = NULL; | |
5162cf0c GM |
2591 | } |
2592 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2593 | ||
2594 | return QLA_FUNCTION_FAILED; | |
2595 | } | |
2596 | ||
ac280b67 AV |
2597 | int |
2598 | qla2x00_start_sp(srb_t *sp) | |
2599 | { | |
2600 | int rval; | |
2601 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
2602 | void *pkt; | |
ac280b67 AV |
2603 | unsigned long flags; |
2604 | ||
2605 | rval = QLA_FUNCTION_FAILED; | |
2606 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
d94d10e7 | 2607 | pkt = qla2x00_alloc_iocbs(sp->fcport->vha, sp); |
7c3df132 SK |
2608 | if (!pkt) { |
2609 | ql_log(ql_log_warn, sp->fcport->vha, 0x700c, | |
2610 | "qla2x00_alloc_iocbs failed.\n"); | |
ac280b67 | 2611 | goto done; |
7c3df132 | 2612 | } |
ac280b67 AV |
2613 | |
2614 | rval = QLA_SUCCESS; | |
9ba56b95 | 2615 | switch (sp->type) { |
ac280b67 AV |
2616 | case SRB_LOGIN_CMD: |
2617 | IS_FWI2_CAPABLE(ha) ? | |
5ff1d584 | 2618 | qla24xx_login_iocb(sp, pkt) : |
ac280b67 AV |
2619 | qla2x00_login_iocb(sp, pkt); |
2620 | break; | |
2621 | case SRB_LOGOUT_CMD: | |
2622 | IS_FWI2_CAPABLE(ha) ? | |
5ff1d584 | 2623 | qla24xx_logout_iocb(sp, pkt) : |
ac280b67 AV |
2624 | qla2x00_logout_iocb(sp, pkt); |
2625 | break; | |
9a069e19 GM |
2626 | case SRB_ELS_CMD_RPT: |
2627 | case SRB_ELS_CMD_HST: | |
2628 | qla24xx_els_iocb(sp, pkt); | |
2629 | break; | |
2630 | case SRB_CT_CMD: | |
9bc4f4fb | 2631 | IS_FWI2_CAPABLE(ha) ? |
5780790e AV |
2632 | qla24xx_ct_iocb(sp, pkt) : |
2633 | qla2x00_ct_iocb(sp, pkt); | |
9a069e19 | 2634 | break; |
5ff1d584 AV |
2635 | case SRB_ADISC_CMD: |
2636 | IS_FWI2_CAPABLE(ha) ? | |
2637 | qla24xx_adisc_iocb(sp, pkt) : | |
2638 | qla2x00_adisc_iocb(sp, pkt); | |
2639 | break; | |
3822263e | 2640 | case SRB_TM_CMD: |
8ae6d9c7 GM |
2641 | IS_QLAFX00(ha) ? |
2642 | qlafx00_tm_iocb(sp, pkt) : | |
2643 | qla24xx_tm_iocb(sp, pkt); | |
2644 | break; | |
2645 | case SRB_FXIOCB_DCMD: | |
2646 | case SRB_FXIOCB_BCMD: | |
2647 | qlafx00_fxdisc_iocb(sp, pkt); | |
2648 | break; | |
2649 | case SRB_ABT_CMD: | |
2650 | qlafx00_abort_iocb(sp, pkt); | |
3822263e | 2651 | break; |
ac280b67 AV |
2652 | default: |
2653 | break; | |
2654 | } | |
2655 | ||
2656 | wmb(); | |
5162cf0c | 2657 | qla2x00_start_iocbs(sp->fcport->vha, ha->req_q_map[0]); |
ac280b67 AV |
2658 | done: |
2659 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2660 | return rval; | |
2661 | } | |
a9b6f722 SK |
2662 | |
2663 | static void | |
2664 | qla25xx_build_bidir_iocb(srb_t *sp, struct scsi_qla_host *vha, | |
2665 | struct cmd_bidir *cmd_pkt, uint32_t tot_dsds) | |
2666 | { | |
2667 | uint16_t avail_dsds; | |
2668 | uint32_t *cur_dsd; | |
2669 | uint32_t req_data_len = 0; | |
2670 | uint32_t rsp_data_len = 0; | |
2671 | struct scatterlist *sg; | |
2672 | int index; | |
2673 | int entry_count = 1; | |
2674 | struct fc_bsg_job *bsg_job = sp->u.bsg_job; | |
2675 | ||
2676 | /*Update entry type to indicate bidir command */ | |
2677 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
2678 | __constant_cpu_to_le32(COMMAND_BIDIRECTIONAL); | |
2679 | ||
2680 | /* Set the transfer direction, in this set both flags | |
2681 | * Also set the BD_WRAP_BACK flag, firmware will take care | |
2682 | * assigning DID=SID for outgoing pkts. | |
2683 | */ | |
2684 | cmd_pkt->wr_dseg_count = cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
2685 | cmd_pkt->rd_dseg_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt); | |
2686 | cmd_pkt->control_flags = | |
2687 | __constant_cpu_to_le16(BD_WRITE_DATA | BD_READ_DATA | | |
2688 | BD_WRAP_BACK); | |
2689 | ||
2690 | req_data_len = rsp_data_len = bsg_job->request_payload.payload_len; | |
2691 | cmd_pkt->wr_byte_count = cpu_to_le32(req_data_len); | |
2692 | cmd_pkt->rd_byte_count = cpu_to_le32(rsp_data_len); | |
2693 | cmd_pkt->timeout = cpu_to_le16(qla2x00_get_async_timeout(vha) + 2); | |
2694 | ||
2695 | vha->bidi_stats.transfer_bytes += req_data_len; | |
2696 | vha->bidi_stats.io_count++; | |
2697 | ||
fabbb8df JC |
2698 | vha->qla_stats.output_bytes += req_data_len; |
2699 | vha->qla_stats.output_requests++; | |
2700 | ||
a9b6f722 SK |
2701 | /* Only one dsd is available for bidirectional IOCB, remaining dsds |
2702 | * are bundled in continuation iocb | |
2703 | */ | |
2704 | avail_dsds = 1; | |
2705 | cur_dsd = (uint32_t *)&cmd_pkt->fcp_data_dseg_address; | |
2706 | ||
2707 | index = 0; | |
2708 | ||
2709 | for_each_sg(bsg_job->request_payload.sg_list, sg, | |
2710 | bsg_job->request_payload.sg_cnt, index) { | |
2711 | dma_addr_t sle_dma; | |
2712 | cont_a64_entry_t *cont_pkt; | |
2713 | ||
2714 | /* Allocate additional continuation packets */ | |
2715 | if (avail_dsds == 0) { | |
2716 | /* Continuation type 1 IOCB can accomodate | |
2717 | * 5 DSDS | |
2718 | */ | |
2719 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); | |
2720 | cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; | |
2721 | avail_dsds = 5; | |
2722 | entry_count++; | |
2723 | } | |
2724 | sle_dma = sg_dma_address(sg); | |
2725 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
2726 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
2727 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
2728 | avail_dsds--; | |
2729 | } | |
2730 | /* For read request DSD will always goes to continuation IOCB | |
2731 | * and follow the write DSD. If there is room on the current IOCB | |
2732 | * then it is added to that IOCB else new continuation IOCB is | |
2733 | * allocated. | |
2734 | */ | |
2735 | for_each_sg(bsg_job->reply_payload.sg_list, sg, | |
2736 | bsg_job->reply_payload.sg_cnt, index) { | |
2737 | dma_addr_t sle_dma; | |
2738 | cont_a64_entry_t *cont_pkt; | |
2739 | ||
2740 | /* Allocate additional continuation packets */ | |
2741 | if (avail_dsds == 0) { | |
2742 | /* Continuation type 1 IOCB can accomodate | |
2743 | * 5 DSDS | |
2744 | */ | |
2745 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); | |
2746 | cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; | |
2747 | avail_dsds = 5; | |
2748 | entry_count++; | |
2749 | } | |
2750 | sle_dma = sg_dma_address(sg); | |
2751 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
2752 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
2753 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
2754 | avail_dsds--; | |
2755 | } | |
2756 | /* This value should be same as number of IOCB required for this cmd */ | |
2757 | cmd_pkt->entry_count = entry_count; | |
2758 | } | |
2759 | ||
2760 | int | |
2761 | qla2x00_start_bidir(srb_t *sp, struct scsi_qla_host *vha, uint32_t tot_dsds) | |
2762 | { | |
2763 | ||
2764 | struct qla_hw_data *ha = vha->hw; | |
2765 | unsigned long flags; | |
2766 | uint32_t handle; | |
2767 | uint32_t index; | |
2768 | uint16_t req_cnt; | |
2769 | uint16_t cnt; | |
2770 | uint32_t *clr_ptr; | |
2771 | struct cmd_bidir *cmd_pkt = NULL; | |
2772 | struct rsp_que *rsp; | |
2773 | struct req_que *req; | |
2774 | int rval = EXT_STATUS_OK; | |
a9b6f722 SK |
2775 | |
2776 | rval = QLA_SUCCESS; | |
2777 | ||
2778 | rsp = ha->rsp_q_map[0]; | |
2779 | req = vha->req; | |
2780 | ||
2781 | /* Send marker if required */ | |
2782 | if (vha->marker_needed != 0) { | |
2783 | if (qla2x00_marker(vha, req, | |
2784 | rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) | |
2785 | return EXT_STATUS_MAILBOX; | |
2786 | vha->marker_needed = 0; | |
2787 | } | |
2788 | ||
2789 | /* Acquire ring specific lock */ | |
2790 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
2791 | ||
2792 | /* Check for room in outstanding command list. */ | |
2793 | handle = req->current_outstanding_cmd; | |
8d93f550 | 2794 | for (index = 1; index < req->num_outstanding_cmds; index++) { |
a9b6f722 | 2795 | handle++; |
8d93f550 | 2796 | if (handle == req->num_outstanding_cmds) |
a9b6f722 SK |
2797 | handle = 1; |
2798 | if (!req->outstanding_cmds[handle]) | |
2799 | break; | |
2800 | } | |
2801 | ||
8d93f550 | 2802 | if (index == req->num_outstanding_cmds) { |
a9b6f722 SK |
2803 | rval = EXT_STATUS_BUSY; |
2804 | goto queuing_error; | |
2805 | } | |
2806 | ||
2807 | /* Calculate number of IOCB required */ | |
2808 | req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); | |
2809 | ||
2810 | /* Check for room on request queue. */ | |
2811 | if (req->cnt < req_cnt + 2) { | |
7e98df22 | 2812 | cnt = RD_REG_DWORD_RELAXED(req->req_q_out); |
a9b6f722 SK |
2813 | |
2814 | if (req->ring_index < cnt) | |
2815 | req->cnt = cnt - req->ring_index; | |
2816 | else | |
2817 | req->cnt = req->length - | |
2818 | (req->ring_index - cnt); | |
2819 | } | |
2820 | if (req->cnt < req_cnt + 2) { | |
2821 | rval = EXT_STATUS_BUSY; | |
2822 | goto queuing_error; | |
2823 | } | |
2824 | ||
2825 | cmd_pkt = (struct cmd_bidir *)req->ring_ptr; | |
2826 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); | |
2827 | ||
2828 | /* Zero out remaining portion of packet. */ | |
2829 | /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/ | |
2830 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
2831 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
2832 | ||
2833 | /* Set NPORT-ID (of vha)*/ | |
2834 | cmd_pkt->nport_handle = cpu_to_le16(vha->self_login_loop_id); | |
2835 | cmd_pkt->port_id[0] = vha->d_id.b.al_pa; | |
2836 | cmd_pkt->port_id[1] = vha->d_id.b.area; | |
2837 | cmd_pkt->port_id[2] = vha->d_id.b.domain; | |
2838 | ||
2839 | qla25xx_build_bidir_iocb(sp, vha, cmd_pkt, tot_dsds); | |
2840 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
2841 | /* Build command packet. */ | |
2842 | req->current_outstanding_cmd = handle; | |
2843 | req->outstanding_cmds[handle] = sp; | |
2844 | sp->handle = handle; | |
2845 | req->cnt -= req_cnt; | |
2846 | ||
2847 | /* Send the command to the firmware */ | |
2848 | wmb(); | |
2849 | qla2x00_start_iocbs(vha, req); | |
2850 | queuing_error: | |
2851 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2852 | return rval; | |
2853 | } |