Commit | Line | Data |
---|---|---|
fa90c54f AV |
1 | /* |
2 | * QLogic Fibre Channel HBA Driver | |
bd21eaf9 | 3 | * Copyright (c) 2003-2014 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; |
1da177e4 LT |
328 | |
329 | /* Setup device pointers. */ | |
330 | ret = 0; | |
444786d7 | 331 | vha = sp->fcport->vha; |
e315cd28 | 332 | ha = vha->hw; |
3d71644c | 333 | reg = &ha->iobase->isp; |
9ba56b95 | 334 | cmd = GET_CMD_SP(sp); |
73208dfd AC |
335 | req = ha->req_q_map[0]; |
336 | rsp = ha->rsp_q_map[0]; | |
83021920 | 337 | /* So we know we haven't pci_map'ed anything yet */ |
338 | tot_dsds = 0; | |
1da177e4 LT |
339 | |
340 | /* Send marker if required */ | |
e315cd28 | 341 | if (vha->marker_needed != 0) { |
7c3df132 SK |
342 | if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != |
343 | QLA_SUCCESS) { | |
1da177e4 | 344 | return (QLA_FUNCTION_FAILED); |
7c3df132 | 345 | } |
e315cd28 | 346 | vha->marker_needed = 0; |
1da177e4 LT |
347 | } |
348 | ||
349 | /* Acquire ring specific lock */ | |
c9c5ced9 | 350 | spin_lock_irqsave(&ha->hardware_lock, flags); |
1da177e4 LT |
351 | |
352 | /* Check for room in outstanding command list. */ | |
e315cd28 | 353 | handle = req->current_outstanding_cmd; |
8d93f550 | 354 | for (index = 1; index < req->num_outstanding_cmds; index++) { |
1da177e4 | 355 | handle++; |
8d93f550 | 356 | if (handle == req->num_outstanding_cmds) |
1da177e4 | 357 | handle = 1; |
e315cd28 | 358 | if (!req->outstanding_cmds[handle]) |
1da177e4 LT |
359 | break; |
360 | } | |
8d93f550 | 361 | if (index == req->num_outstanding_cmds) |
1da177e4 LT |
362 | goto queuing_error; |
363 | ||
83021920 | 364 | /* Map the sg table so we have an accurate count of sg entries needed */ |
2c3dfe3f SJ |
365 | if (scsi_sg_count(cmd)) { |
366 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
367 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
368 | if (unlikely(!nseg)) | |
369 | goto queuing_error; | |
370 | } else | |
371 | nseg = 0; | |
372 | ||
385d70b4 | 373 | tot_dsds = nseg; |
83021920 | 374 | |
1da177e4 | 375 | /* Calculate the number of request entries needed. */ |
fd34f556 | 376 | req_cnt = ha->isp_ops->calc_req_entries(tot_dsds); |
e315cd28 | 377 | if (req->cnt < (req_cnt + 2)) { |
1da177e4 | 378 | cnt = RD_REG_WORD_RELAXED(ISP_REQ_Q_OUT(ha, reg)); |
e315cd28 AC |
379 | if (req->ring_index < cnt) |
380 | req->cnt = cnt - req->ring_index; | |
1da177e4 | 381 | else |
e315cd28 AC |
382 | req->cnt = req->length - |
383 | (req->ring_index - cnt); | |
a6eb3c9f CL |
384 | /* If still no head room then bail out */ |
385 | if (req->cnt < (req_cnt + 2)) | |
386 | goto queuing_error; | |
1da177e4 | 387 | } |
1da177e4 | 388 | |
1da177e4 | 389 | /* Build command packet */ |
e315cd28 AC |
390 | req->current_outstanding_cmd = handle; |
391 | req->outstanding_cmds[handle] = sp; | |
cf53b069 | 392 | sp->handle = handle; |
9ba56b95 | 393 | cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
e315cd28 | 394 | req->cnt -= req_cnt; |
1da177e4 | 395 | |
e315cd28 | 396 | cmd_pkt = (cmd_entry_t *)req->ring_ptr; |
1da177e4 LT |
397 | cmd_pkt->handle = handle; |
398 | /* Zero out remaining portion of packet. */ | |
399 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
400 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
401 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
402 | ||
bdf79621 | 403 | /* Set target ID and LUN number*/ |
404 | SET_TARGET_ID(ha, cmd_pkt->target, sp->fcport->loop_id); | |
9ba56b95 | 405 | cmd_pkt->lun = cpu_to_le16(cmd->device->lun); |
50668633 | 406 | cmd_pkt->control_flags = __constant_cpu_to_le16(CF_SIMPLE_TAG); |
1da177e4 | 407 | |
1da177e4 LT |
408 | /* Load SCSI command packet. */ |
409 | memcpy(cmd_pkt->scsi_cdb, cmd->cmnd, cmd->cmd_len); | |
385d70b4 | 410 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); |
1da177e4 LT |
411 | |
412 | /* Build IOCB segments */ | |
fd34f556 | 413 | ha->isp_ops->build_iocbs(sp, cmd_pkt, tot_dsds); |
1da177e4 LT |
414 | |
415 | /* Set total data segment count. */ | |
416 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
417 | wmb(); | |
418 | ||
419 | /* Adjust ring index. */ | |
e315cd28 AC |
420 | req->ring_index++; |
421 | if (req->ring_index == req->length) { | |
422 | req->ring_index = 0; | |
423 | req->ring_ptr = req->ring; | |
1da177e4 | 424 | } else |
e315cd28 | 425 | req->ring_ptr++; |
1da177e4 | 426 | |
1da177e4 | 427 | sp->flags |= SRB_DMA_VALID; |
1da177e4 LT |
428 | |
429 | /* Set chip new ring index. */ | |
e315cd28 | 430 | WRT_REG_WORD(ISP_REQ_Q_IN(ha, reg), req->ring_index); |
1da177e4 LT |
431 | RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, reg)); /* PCI Posting. */ |
432 | ||
4fdfefe5 | 433 | /* Manage unprocessed RIO/ZIO commands in response queue. */ |
e315cd28 | 434 | if (vha->flags.process_response_queue && |
73208dfd AC |
435 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) |
436 | qla2x00_process_response_queue(rsp); | |
4fdfefe5 | 437 | |
c9c5ced9 | 438 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
1da177e4 LT |
439 | return (QLA_SUCCESS); |
440 | ||
441 | queuing_error: | |
385d70b4 FT |
442 | if (tot_dsds) |
443 | scsi_dma_unmap(cmd); | |
444 | ||
c9c5ced9 | 445 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
1da177e4 LT |
446 | |
447 | return (QLA_FUNCTION_FAILED); | |
448 | } | |
449 | ||
5162cf0c GM |
450 | /** |
451 | * qla2x00_start_iocbs() - Execute the IOCB command | |
452 | */ | |
2d70c103 | 453 | void |
5162cf0c GM |
454 | qla2x00_start_iocbs(struct scsi_qla_host *vha, struct req_que *req) |
455 | { | |
456 | struct qla_hw_data *ha = vha->hw; | |
457 | device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id); | |
5162cf0c | 458 | |
7ec0effd | 459 | if (IS_P3P_TYPE(ha)) { |
5162cf0c GM |
460 | qla82xx_start_iocbs(vha); |
461 | } else { | |
462 | /* Adjust ring index. */ | |
463 | req->ring_index++; | |
464 | if (req->ring_index == req->length) { | |
465 | req->ring_index = 0; | |
466 | req->ring_ptr = req->ring; | |
467 | } else | |
468 | req->ring_ptr++; | |
469 | ||
470 | /* Set chip new ring index. */ | |
f73cb695 | 471 | if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha)) { |
6246b8a1 | 472 | WRT_REG_DWORD(req->req_q_in, req->ring_index); |
98878a16 | 473 | RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); |
8ae6d9c7 GM |
474 | } else if (IS_QLAFX00(ha)) { |
475 | WRT_REG_DWORD(®->ispfx00.req_q_in, req->ring_index); | |
476 | RD_REG_DWORD_RELAXED(®->ispfx00.req_q_in); | |
477 | QLAFX00_SET_HST_INTR(ha, ha->rqstq_intr_code); | |
5162cf0c GM |
478 | } else if (IS_FWI2_CAPABLE(ha)) { |
479 | WRT_REG_DWORD(®->isp24.req_q_in, req->ring_index); | |
480 | RD_REG_DWORD_RELAXED(®->isp24.req_q_in); | |
481 | } else { | |
482 | WRT_REG_WORD(ISP_REQ_Q_IN(ha, ®->isp), | |
483 | req->ring_index); | |
484 | RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, ®->isp)); | |
485 | } | |
486 | } | |
487 | } | |
488 | ||
1da177e4 LT |
489 | /** |
490 | * qla2x00_marker() - Send a marker IOCB to the firmware. | |
491 | * @ha: HA context | |
492 | * @loop_id: loop ID | |
493 | * @lun: LUN | |
494 | * @type: marker modifier | |
495 | * | |
496 | * Can be called from both normal and interrupt context. | |
497 | * | |
cc3ef7bc | 498 | * Returns non-zero if a failure occurred, else zero. |
1da177e4 | 499 | */ |
3dbe756a | 500 | static int |
73208dfd AC |
501 | __qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req, |
502 | struct rsp_que *rsp, uint16_t loop_id, | |
9cb78c16 | 503 | uint64_t lun, uint8_t type) |
1da177e4 | 504 | { |
2b6c0cee | 505 | mrk_entry_t *mrk; |
8ae6d9c7 | 506 | struct mrk_entry_24xx *mrk24 = NULL; |
8ae6d9c7 | 507 | |
e315cd28 AC |
508 | struct qla_hw_data *ha = vha->hw; |
509 | scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); | |
1da177e4 | 510 | |
99b8212c | 511 | req = ha->req_q_map[0]; |
fa492630 | 512 | mrk = (mrk_entry_t *)qla2x00_alloc_iocbs(vha, NULL); |
2b6c0cee | 513 | if (mrk == NULL) { |
7c3df132 SK |
514 | ql_log(ql_log_warn, base_vha, 0x3026, |
515 | "Failed to allocate Marker IOCB.\n"); | |
1da177e4 LT |
516 | |
517 | return (QLA_FUNCTION_FAILED); | |
518 | } | |
519 | ||
2b6c0cee AV |
520 | mrk->entry_type = MARKER_TYPE; |
521 | mrk->modifier = type; | |
1da177e4 | 522 | if (type != MK_SYNC_ALL) { |
bfd7334e | 523 | if (IS_FWI2_CAPABLE(ha)) { |
2b6c0cee AV |
524 | mrk24 = (struct mrk_entry_24xx *) mrk; |
525 | mrk24->nport_handle = cpu_to_le16(loop_id); | |
9cb78c16 | 526 | int_to_scsilun(lun, (struct scsi_lun *)&mrk24->lun); |
b797b6de | 527 | host_to_fcp_swap(mrk24->lun, sizeof(mrk24->lun)); |
e315cd28 | 528 | mrk24->vp_index = vha->vp_idx; |
2afa19a9 | 529 | mrk24->handle = MAKE_HANDLE(req->id, mrk24->handle); |
2b6c0cee AV |
530 | } else { |
531 | SET_TARGET_ID(ha, mrk->target, loop_id); | |
9cb78c16 | 532 | mrk->lun = cpu_to_le16((uint16_t)lun); |
2b6c0cee | 533 | } |
1da177e4 LT |
534 | } |
535 | wmb(); | |
536 | ||
5162cf0c | 537 | qla2x00_start_iocbs(vha, req); |
1da177e4 LT |
538 | |
539 | return (QLA_SUCCESS); | |
540 | } | |
541 | ||
fa2a1ce5 | 542 | int |
73208dfd | 543 | qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req, |
9cb78c16 | 544 | struct rsp_que *rsp, uint16_t loop_id, uint64_t lun, |
73208dfd | 545 | uint8_t type) |
1da177e4 LT |
546 | { |
547 | int ret; | |
548 | unsigned long flags = 0; | |
549 | ||
73208dfd AC |
550 | spin_lock_irqsave(&vha->hw->hardware_lock, flags); |
551 | ret = __qla2x00_marker(vha, req, rsp, loop_id, lun, type); | |
552 | spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); | |
1da177e4 LT |
553 | |
554 | return (ret); | |
555 | } | |
556 | ||
2d70c103 NB |
557 | /* |
558 | * qla2x00_issue_marker | |
559 | * | |
560 | * Issue marker | |
561 | * Caller CAN have hardware lock held as specified by ha_locked parameter. | |
562 | * Might release it, then reaquire. | |
563 | */ | |
564 | int qla2x00_issue_marker(scsi_qla_host_t *vha, int ha_locked) | |
565 | { | |
566 | if (ha_locked) { | |
567 | if (__qla2x00_marker(vha, vha->req, vha->req->rsp, 0, 0, | |
568 | MK_SYNC_ALL) != QLA_SUCCESS) | |
569 | return QLA_FUNCTION_FAILED; | |
570 | } else { | |
571 | if (qla2x00_marker(vha, vha->req, vha->req->rsp, 0, 0, | |
572 | MK_SYNC_ALL) != QLA_SUCCESS) | |
573 | return QLA_FUNCTION_FAILED; | |
574 | } | |
575 | vha->marker_needed = 0; | |
576 | ||
577 | return QLA_SUCCESS; | |
578 | } | |
579 | ||
5162cf0c GM |
580 | static inline int |
581 | qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt, | |
582 | uint16_t tot_dsds) | |
583 | { | |
584 | uint32_t *cur_dsd = NULL; | |
585 | scsi_qla_host_t *vha; | |
586 | struct qla_hw_data *ha; | |
587 | struct scsi_cmnd *cmd; | |
588 | struct scatterlist *cur_seg; | |
589 | uint32_t *dsd_seg; | |
590 | void *next_dsd; | |
591 | uint8_t avail_dsds; | |
592 | uint8_t first_iocb = 1; | |
593 | uint32_t dsd_list_len; | |
594 | struct dsd_dma *dsd_ptr; | |
595 | struct ct6_dsd *ctx; | |
1da177e4 | 596 | |
9ba56b95 | 597 | cmd = GET_CMD_SP(sp); |
a9083016 | 598 | |
5162cf0c GM |
599 | /* Update entry type to indicate Command Type 3 IOCB */ |
600 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
601 | __constant_cpu_to_le32(COMMAND_TYPE_6); | |
602 | ||
603 | /* No data transfer */ | |
604 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { | |
605 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); | |
606 | return 0; | |
607 | } | |
608 | ||
609 | vha = sp->fcport->vha; | |
610 | ha = vha->hw; | |
611 | ||
612 | /* Set transfer direction */ | |
613 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { | |
614 | cmd_pkt->control_flags = | |
615 | __constant_cpu_to_le16(CF_WRITE_DATA); | |
2be21fa2 | 616 | vha->qla_stats.output_bytes += scsi_bufflen(cmd); |
fabbb8df | 617 | vha->qla_stats.output_requests++; |
5162cf0c GM |
618 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { |
619 | cmd_pkt->control_flags = | |
620 | __constant_cpu_to_le16(CF_READ_DATA); | |
2be21fa2 | 621 | vha->qla_stats.input_bytes += scsi_bufflen(cmd); |
fabbb8df | 622 | vha->qla_stats.input_requests++; |
5162cf0c GM |
623 | } |
624 | ||
625 | cur_seg = scsi_sglist(cmd); | |
9ba56b95 | 626 | ctx = GET_CMD_CTX_SP(sp); |
5162cf0c GM |
627 | |
628 | while (tot_dsds) { | |
629 | avail_dsds = (tot_dsds > QLA_DSDS_PER_IOCB) ? | |
630 | QLA_DSDS_PER_IOCB : tot_dsds; | |
631 | tot_dsds -= avail_dsds; | |
632 | dsd_list_len = (avail_dsds + 1) * QLA_DSD_SIZE; | |
633 | ||
634 | dsd_ptr = list_first_entry(&ha->gbl_dsd_list, | |
635 | struct dsd_dma, list); | |
636 | next_dsd = dsd_ptr->dsd_addr; | |
637 | list_del(&dsd_ptr->list); | |
638 | ha->gbl_dsd_avail--; | |
639 | list_add_tail(&dsd_ptr->list, &ctx->dsd_list); | |
640 | ctx->dsd_use_cnt++; | |
641 | ha->gbl_dsd_inuse++; | |
642 | ||
643 | if (first_iocb) { | |
644 | first_iocb = 0; | |
645 | dsd_seg = (uint32_t *)&cmd_pkt->fcp_data_dseg_address; | |
646 | *dsd_seg++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
647 | *dsd_seg++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
648 | cmd_pkt->fcp_data_dseg_len = cpu_to_le32(dsd_list_len); | |
73208dfd | 649 | } else { |
5162cf0c GM |
650 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); |
651 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
652 | *cur_dsd++ = cpu_to_le32(dsd_list_len); | |
653 | } | |
654 | cur_dsd = (uint32_t *)next_dsd; | |
655 | while (avail_dsds) { | |
656 | dma_addr_t sle_dma; | |
657 | ||
658 | sle_dma = sg_dma_address(cur_seg); | |
659 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
660 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
661 | *cur_dsd++ = cpu_to_le32(sg_dma_len(cur_seg)); | |
662 | cur_seg = sg_next(cur_seg); | |
663 | avail_dsds--; | |
73208dfd | 664 | } |
2b6c0cee AV |
665 | } |
666 | ||
5162cf0c GM |
667 | /* Null termination */ |
668 | *cur_dsd++ = 0; | |
669 | *cur_dsd++ = 0; | |
670 | *cur_dsd++ = 0; | |
671 | cmd_pkt->control_flags |= CF_DATA_SEG_DESCR_ENABLE; | |
672 | return 0; | |
2b6c0cee AV |
673 | } |
674 | ||
5162cf0c GM |
675 | /* |
676 | * qla24xx_calc_dsd_lists() - Determine number of DSD list required | |
677 | * for Command Type 6. | |
2b6c0cee AV |
678 | * |
679 | * @dsds: number of data segment decriptors needed | |
680 | * | |
5162cf0c | 681 | * Returns the number of dsd list needed to store @dsds. |
2b6c0cee | 682 | */ |
a9083016 | 683 | inline uint16_t |
5162cf0c | 684 | qla24xx_calc_dsd_lists(uint16_t dsds) |
2b6c0cee | 685 | { |
5162cf0c | 686 | uint16_t dsd_lists = 0; |
2b6c0cee | 687 | |
5162cf0c GM |
688 | dsd_lists = (dsds/QLA_DSDS_PER_IOCB); |
689 | if (dsds % QLA_DSDS_PER_IOCB) | |
690 | dsd_lists++; | |
691 | return dsd_lists; | |
2b6c0cee AV |
692 | } |
693 | ||
5162cf0c | 694 | |
2b6c0cee AV |
695 | /** |
696 | * qla24xx_build_scsi_iocbs() - Build IOCB command utilizing Command Type 7 | |
697 | * IOCB types. | |
698 | * | |
699 | * @sp: SRB command to process | |
700 | * @cmd_pkt: Command type 3 IOCB | |
701 | * @tot_dsds: Total number of segments to transfer | |
702 | */ | |
a9083016 | 703 | inline void |
2b6c0cee AV |
704 | qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt, |
705 | uint16_t tot_dsds) | |
706 | { | |
707 | uint16_t avail_dsds; | |
708 | uint32_t *cur_dsd; | |
e315cd28 | 709 | scsi_qla_host_t *vha; |
2b6c0cee | 710 | struct scsi_cmnd *cmd; |
385d70b4 FT |
711 | struct scatterlist *sg; |
712 | int i; | |
73208dfd | 713 | struct req_que *req; |
2b6c0cee | 714 | |
9ba56b95 | 715 | cmd = GET_CMD_SP(sp); |
2b6c0cee AV |
716 | |
717 | /* Update entry type to indicate Command Type 3 IOCB */ | |
718 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
719 | __constant_cpu_to_le32(COMMAND_TYPE_7); | |
720 | ||
721 | /* No data transfer */ | |
385d70b4 | 722 | if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) { |
2b6c0cee AV |
723 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
724 | return; | |
725 | } | |
726 | ||
444786d7 | 727 | vha = sp->fcport->vha; |
67c2e93a | 728 | req = vha->req; |
2b6c0cee AV |
729 | |
730 | /* Set transfer direction */ | |
49fd462a | 731 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { |
2b6c0cee AV |
732 | cmd_pkt->task_mgmt_flags = |
733 | __constant_cpu_to_le16(TMF_WRITE_DATA); | |
2be21fa2 | 734 | vha->qla_stats.output_bytes += scsi_bufflen(cmd); |
fabbb8df | 735 | vha->qla_stats.output_requests++; |
49fd462a | 736 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { |
2b6c0cee AV |
737 | cmd_pkt->task_mgmt_flags = |
738 | __constant_cpu_to_le16(TMF_READ_DATA); | |
2be21fa2 | 739 | vha->qla_stats.input_bytes += scsi_bufflen(cmd); |
fabbb8df | 740 | vha->qla_stats.input_requests++; |
49fd462a | 741 | } |
2b6c0cee AV |
742 | |
743 | /* One DSD is available in the Command Type 3 IOCB */ | |
744 | avail_dsds = 1; | |
745 | cur_dsd = (uint32_t *)&cmd_pkt->dseg_0_address; | |
746 | ||
747 | /* Load data segments */ | |
385d70b4 FT |
748 | |
749 | scsi_for_each_sg(cmd, sg, tot_dsds, i) { | |
750 | dma_addr_t sle_dma; | |
751 | cont_a64_entry_t *cont_pkt; | |
752 | ||
753 | /* Allocate additional continuation packets? */ | |
754 | if (avail_dsds == 0) { | |
755 | /* | |
756 | * Five DSDs are available in the Continuation | |
757 | * Type 1 IOCB. | |
758 | */ | |
0d2aa38e | 759 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); |
385d70b4 FT |
760 | cur_dsd = (uint32_t *)cont_pkt->dseg_0_address; |
761 | avail_dsds = 5; | |
2b6c0cee | 762 | } |
385d70b4 FT |
763 | |
764 | sle_dma = sg_dma_address(sg); | |
765 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
766 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
767 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
768 | avail_dsds--; | |
2b6c0cee AV |
769 | } |
770 | } | |
771 | ||
bad75002 AE |
772 | struct fw_dif_context { |
773 | uint32_t ref_tag; | |
774 | uint16_t app_tag; | |
775 | uint8_t ref_tag_mask[4]; /* Validation/Replacement Mask*/ | |
776 | uint8_t app_tag_mask[2]; /* Validation/Replacement Mask*/ | |
777 | }; | |
778 | ||
779 | /* | |
780 | * qla24xx_set_t10dif_tags_from_cmd - Extract Ref and App tags from SCSI command | |
781 | * | |
782 | */ | |
783 | static inline void | |
e02587d7 | 784 | qla24xx_set_t10dif_tags(srb_t *sp, struct fw_dif_context *pkt, |
bad75002 AE |
785 | unsigned int protcnt) |
786 | { | |
9ba56b95 | 787 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
bad75002 AE |
788 | |
789 | switch (scsi_get_prot_type(cmd)) { | |
bad75002 | 790 | case SCSI_PROT_DIF_TYPE0: |
8cb2049c AE |
791 | /* |
792 | * No check for ql2xenablehba_err_chk, as it would be an | |
793 | * I/O error if hba tag generation is not done. | |
794 | */ | |
795 | pkt->ref_tag = cpu_to_le32((uint32_t) | |
796 | (0xffffffff & scsi_get_lba(cmd))); | |
e02587d7 AE |
797 | |
798 | if (!qla2x00_hba_err_chk_enabled(sp)) | |
799 | break; | |
800 | ||
8cb2049c AE |
801 | pkt->ref_tag_mask[0] = 0xff; |
802 | pkt->ref_tag_mask[1] = 0xff; | |
803 | pkt->ref_tag_mask[2] = 0xff; | |
804 | pkt->ref_tag_mask[3] = 0xff; | |
bad75002 AE |
805 | break; |
806 | ||
807 | /* | |
808 | * For TYPE 2 protection: 16 bit GUARD + 32 bit REF tag has to | |
809 | * match LBA in CDB + N | |
810 | */ | |
811 | case SCSI_PROT_DIF_TYPE2: | |
e02587d7 AE |
812 | pkt->app_tag = __constant_cpu_to_le16(0); |
813 | pkt->app_tag_mask[0] = 0x0; | |
814 | pkt->app_tag_mask[1] = 0x0; | |
0c470874 AE |
815 | |
816 | pkt->ref_tag = cpu_to_le32((uint32_t) | |
817 | (0xffffffff & scsi_get_lba(cmd))); | |
818 | ||
e02587d7 AE |
819 | if (!qla2x00_hba_err_chk_enabled(sp)) |
820 | break; | |
821 | ||
0c470874 AE |
822 | /* enable ALL bytes of the ref tag */ |
823 | pkt->ref_tag_mask[0] = 0xff; | |
824 | pkt->ref_tag_mask[1] = 0xff; | |
825 | pkt->ref_tag_mask[2] = 0xff; | |
826 | pkt->ref_tag_mask[3] = 0xff; | |
bad75002 AE |
827 | break; |
828 | ||
829 | /* For Type 3 protection: 16 bit GUARD only */ | |
830 | case SCSI_PROT_DIF_TYPE3: | |
831 | pkt->ref_tag_mask[0] = pkt->ref_tag_mask[1] = | |
832 | pkt->ref_tag_mask[2] = pkt->ref_tag_mask[3] = | |
833 | 0x00; | |
834 | break; | |
835 | ||
836 | /* | |
837 | * For TYpe 1 protection: 16 bit GUARD tag, 32 bit REF tag, and | |
838 | * 16 bit app tag. | |
839 | */ | |
840 | case SCSI_PROT_DIF_TYPE1: | |
e02587d7 AE |
841 | pkt->ref_tag = cpu_to_le32((uint32_t) |
842 | (0xffffffff & scsi_get_lba(cmd))); | |
843 | pkt->app_tag = __constant_cpu_to_le16(0); | |
844 | pkt->app_tag_mask[0] = 0x0; | |
845 | pkt->app_tag_mask[1] = 0x0; | |
846 | ||
847 | if (!qla2x00_hba_err_chk_enabled(sp)) | |
bad75002 AE |
848 | break; |
849 | ||
bad75002 AE |
850 | /* enable ALL bytes of the ref tag */ |
851 | pkt->ref_tag_mask[0] = 0xff; | |
852 | pkt->ref_tag_mask[1] = 0xff; | |
853 | pkt->ref_tag_mask[2] = 0xff; | |
854 | pkt->ref_tag_mask[3] = 0xff; | |
855 | break; | |
856 | } | |
bad75002 AE |
857 | } |
858 | ||
8cb2049c AE |
859 | struct qla2_sgx { |
860 | dma_addr_t dma_addr; /* OUT */ | |
861 | uint32_t dma_len; /* OUT */ | |
862 | ||
863 | uint32_t tot_bytes; /* IN */ | |
864 | struct scatterlist *cur_sg; /* IN */ | |
865 | ||
866 | /* for book keeping, bzero on initial invocation */ | |
867 | uint32_t bytes_consumed; | |
868 | uint32_t num_bytes; | |
869 | uint32_t tot_partial; | |
870 | ||
871 | /* for debugging */ | |
872 | uint32_t num_sg; | |
873 | srb_t *sp; | |
874 | }; | |
875 | ||
876 | static int | |
877 | qla24xx_get_one_block_sg(uint32_t blk_sz, struct qla2_sgx *sgx, | |
878 | uint32_t *partial) | |
879 | { | |
880 | struct scatterlist *sg; | |
881 | uint32_t cumulative_partial, sg_len; | |
882 | dma_addr_t sg_dma_addr; | |
883 | ||
884 | if (sgx->num_bytes == sgx->tot_bytes) | |
885 | return 0; | |
886 | ||
887 | sg = sgx->cur_sg; | |
888 | cumulative_partial = sgx->tot_partial; | |
889 | ||
890 | sg_dma_addr = sg_dma_address(sg); | |
891 | sg_len = sg_dma_len(sg); | |
892 | ||
893 | sgx->dma_addr = sg_dma_addr + sgx->bytes_consumed; | |
894 | ||
895 | if ((cumulative_partial + (sg_len - sgx->bytes_consumed)) >= blk_sz) { | |
896 | sgx->dma_len = (blk_sz - cumulative_partial); | |
897 | sgx->tot_partial = 0; | |
898 | sgx->num_bytes += blk_sz; | |
899 | *partial = 0; | |
900 | } else { | |
901 | sgx->dma_len = sg_len - sgx->bytes_consumed; | |
902 | sgx->tot_partial += sgx->dma_len; | |
903 | *partial = 1; | |
904 | } | |
905 | ||
906 | sgx->bytes_consumed += sgx->dma_len; | |
907 | ||
908 | if (sg_len == sgx->bytes_consumed) { | |
909 | sg = sg_next(sg); | |
910 | sgx->num_sg++; | |
911 | sgx->cur_sg = sg; | |
912 | sgx->bytes_consumed = 0; | |
913 | } | |
914 | ||
915 | return 1; | |
916 | } | |
917 | ||
f83adb61 | 918 | int |
8cb2049c | 919 | qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data *ha, srb_t *sp, |
f83adb61 | 920 | uint32_t *dsd, uint16_t tot_dsds, struct qla_tgt_cmd *tc) |
8cb2049c AE |
921 | { |
922 | void *next_dsd; | |
923 | uint8_t avail_dsds = 0; | |
924 | uint32_t dsd_list_len; | |
925 | struct dsd_dma *dsd_ptr; | |
926 | struct scatterlist *sg_prot; | |
927 | uint32_t *cur_dsd = dsd; | |
928 | uint16_t used_dsds = tot_dsds; | |
929 | ||
f83adb61 | 930 | uint32_t prot_int; /* protection interval */ |
8cb2049c AE |
931 | uint32_t partial; |
932 | struct qla2_sgx sgx; | |
933 | dma_addr_t sle_dma; | |
934 | uint32_t sle_dma_len, tot_prot_dma_len = 0; | |
f83adb61 QT |
935 | struct scsi_cmnd *cmd; |
936 | struct scsi_qla_host *vha; | |
8cb2049c AE |
937 | |
938 | memset(&sgx, 0, sizeof(struct qla2_sgx)); | |
f83adb61 QT |
939 | if (sp) { |
940 | vha = sp->fcport->vha; | |
941 | cmd = GET_CMD_SP(sp); | |
942 | prot_int = cmd->device->sector_size; | |
943 | ||
944 | sgx.tot_bytes = scsi_bufflen(cmd); | |
945 | sgx.cur_sg = scsi_sglist(cmd); | |
946 | sgx.sp = sp; | |
947 | ||
948 | sg_prot = scsi_prot_sglist(cmd); | |
949 | } else if (tc) { | |
950 | vha = tc->vha; | |
951 | prot_int = tc->blk_sz; | |
952 | sgx.tot_bytes = tc->bufflen; | |
953 | sgx.cur_sg = tc->sg; | |
954 | sg_prot = tc->prot_sg; | |
955 | } else { | |
956 | BUG(); | |
957 | return 1; | |
958 | } | |
8cb2049c AE |
959 | |
960 | while (qla24xx_get_one_block_sg(prot_int, &sgx, &partial)) { | |
961 | ||
962 | sle_dma = sgx.dma_addr; | |
963 | sle_dma_len = sgx.dma_len; | |
964 | alloc_and_fill: | |
965 | /* Allocate additional continuation packets? */ | |
966 | if (avail_dsds == 0) { | |
967 | avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? | |
968 | QLA_DSDS_PER_IOCB : used_dsds; | |
969 | dsd_list_len = (avail_dsds + 1) * 12; | |
970 | used_dsds -= avail_dsds; | |
971 | ||
972 | /* allocate tracking DS */ | |
973 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
974 | if (!dsd_ptr) | |
975 | return 1; | |
976 | ||
977 | /* allocate new list */ | |
978 | dsd_ptr->dsd_addr = next_dsd = | |
979 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, | |
980 | &dsd_ptr->dsd_list_dma); | |
981 | ||
982 | if (!next_dsd) { | |
983 | /* | |
984 | * Need to cleanup only this dsd_ptr, rest | |
985 | * will be done by sp_free_dma() | |
986 | */ | |
987 | kfree(dsd_ptr); | |
988 | return 1; | |
989 | } | |
990 | ||
f83adb61 QT |
991 | if (sp) { |
992 | list_add_tail(&dsd_ptr->list, | |
993 | &((struct crc_context *) | |
994 | sp->u.scmd.ctx)->dsd_list); | |
995 | ||
996 | sp->flags |= SRB_CRC_CTX_DSD_VALID; | |
997 | } else { | |
998 | list_add_tail(&dsd_ptr->list, | |
999 | &(tc->ctx->dsd_list)); | |
1000 | tc->ctx_dsd_alloced = 1; | |
1001 | } | |
8cb2049c | 1002 | |
8cb2049c AE |
1003 | |
1004 | /* add new list to cmd iocb or last list */ | |
1005 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
1006 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
1007 | *cur_dsd++ = dsd_list_len; | |
1008 | cur_dsd = (uint32_t *)next_dsd; | |
1009 | } | |
1010 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
1011 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
1012 | *cur_dsd++ = cpu_to_le32(sle_dma_len); | |
1013 | avail_dsds--; | |
1014 | ||
1015 | if (partial == 0) { | |
1016 | /* Got a full protection interval */ | |
1017 | sle_dma = sg_dma_address(sg_prot) + tot_prot_dma_len; | |
1018 | sle_dma_len = 8; | |
bad75002 | 1019 | |
8cb2049c AE |
1020 | tot_prot_dma_len += sle_dma_len; |
1021 | if (tot_prot_dma_len == sg_dma_len(sg_prot)) { | |
1022 | tot_prot_dma_len = 0; | |
1023 | sg_prot = sg_next(sg_prot); | |
1024 | } | |
1025 | ||
1026 | partial = 1; /* So as to not re-enter this block */ | |
1027 | goto alloc_and_fill; | |
1028 | } | |
1029 | } | |
1030 | /* Null termination */ | |
1031 | *cur_dsd++ = 0; | |
1032 | *cur_dsd++ = 0; | |
1033 | *cur_dsd++ = 0; | |
1034 | return 0; | |
1035 | } | |
5162cf0c | 1036 | |
f83adb61 | 1037 | int |
bad75002 | 1038 | qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, uint32_t *dsd, |
f83adb61 | 1039 | uint16_t tot_dsds, struct qla_tgt_cmd *tc) |
bad75002 AE |
1040 | { |
1041 | void *next_dsd; | |
1042 | uint8_t avail_dsds = 0; | |
1043 | uint32_t dsd_list_len; | |
1044 | struct dsd_dma *dsd_ptr; | |
f83adb61 | 1045 | struct scatterlist *sg, *sgl; |
bad75002 AE |
1046 | uint32_t *cur_dsd = dsd; |
1047 | int i; | |
1048 | uint16_t used_dsds = tot_dsds; | |
f83adb61 QT |
1049 | struct scsi_cmnd *cmd; |
1050 | struct scsi_qla_host *vha; | |
1051 | ||
1052 | if (sp) { | |
1053 | cmd = GET_CMD_SP(sp); | |
1054 | sgl = scsi_sglist(cmd); | |
1055 | vha = sp->fcport->vha; | |
1056 | } else if (tc) { | |
1057 | sgl = tc->sg; | |
1058 | vha = tc->vha; | |
1059 | } else { | |
1060 | BUG(); | |
1061 | return 1; | |
1062 | } | |
bad75002 | 1063 | |
f83adb61 QT |
1064 | |
1065 | for_each_sg(sgl, sg, tot_dsds, i) { | |
bad75002 AE |
1066 | dma_addr_t sle_dma; |
1067 | ||
1068 | /* Allocate additional continuation packets? */ | |
1069 | if (avail_dsds == 0) { | |
1070 | avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? | |
1071 | QLA_DSDS_PER_IOCB : used_dsds; | |
1072 | dsd_list_len = (avail_dsds + 1) * 12; | |
1073 | used_dsds -= avail_dsds; | |
1074 | ||
1075 | /* allocate tracking DS */ | |
1076 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
1077 | if (!dsd_ptr) | |
1078 | return 1; | |
1079 | ||
1080 | /* allocate new list */ | |
1081 | dsd_ptr->dsd_addr = next_dsd = | |
1082 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, | |
1083 | &dsd_ptr->dsd_list_dma); | |
1084 | ||
1085 | if (!next_dsd) { | |
1086 | /* | |
1087 | * Need to cleanup only this dsd_ptr, rest | |
1088 | * will be done by sp_free_dma() | |
1089 | */ | |
1090 | kfree(dsd_ptr); | |
1091 | return 1; | |
1092 | } | |
1093 | ||
f83adb61 QT |
1094 | if (sp) { |
1095 | list_add_tail(&dsd_ptr->list, | |
1096 | &((struct crc_context *) | |
1097 | sp->u.scmd.ctx)->dsd_list); | |
bad75002 | 1098 | |
f83adb61 QT |
1099 | sp->flags |= SRB_CRC_CTX_DSD_VALID; |
1100 | } else { | |
1101 | list_add_tail(&dsd_ptr->list, | |
1102 | &(tc->ctx->dsd_list)); | |
1103 | tc->ctx_dsd_alloced = 1; | |
1104 | } | |
bad75002 AE |
1105 | |
1106 | /* add new list to cmd iocb or last list */ | |
1107 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
1108 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
1109 | *cur_dsd++ = dsd_list_len; | |
1110 | cur_dsd = (uint32_t *)next_dsd; | |
1111 | } | |
1112 | sle_dma = sg_dma_address(sg); | |
9e522cd8 | 1113 | |
bad75002 AE |
1114 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); |
1115 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
1116 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
1117 | avail_dsds--; | |
1118 | ||
bad75002 AE |
1119 | } |
1120 | /* Null termination */ | |
1121 | *cur_dsd++ = 0; | |
1122 | *cur_dsd++ = 0; | |
1123 | *cur_dsd++ = 0; | |
1124 | return 0; | |
1125 | } | |
1126 | ||
f83adb61 | 1127 | int |
bad75002 | 1128 | qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp, |
f83adb61 | 1129 | uint32_t *dsd, uint16_t tot_dsds, struct qla_tgt_cmd *tc) |
bad75002 AE |
1130 | { |
1131 | void *next_dsd; | |
1132 | uint8_t avail_dsds = 0; | |
1133 | uint32_t dsd_list_len; | |
1134 | struct dsd_dma *dsd_ptr; | |
f83adb61 | 1135 | struct scatterlist *sg, *sgl; |
bad75002 AE |
1136 | int i; |
1137 | struct scsi_cmnd *cmd; | |
1138 | uint32_t *cur_dsd = dsd; | |
f83adb61 QT |
1139 | uint16_t used_dsds = tot_dsds; |
1140 | struct scsi_qla_host *vha; | |
1141 | ||
1142 | if (sp) { | |
1143 | cmd = GET_CMD_SP(sp); | |
1144 | sgl = scsi_prot_sglist(cmd); | |
1145 | vha = sp->fcport->vha; | |
1146 | } else if (tc) { | |
1147 | vha = tc->vha; | |
1148 | sgl = tc->prot_sg; | |
1149 | } else { | |
1150 | BUG(); | |
1151 | return 1; | |
1152 | } | |
bad75002 | 1153 | |
f83adb61 QT |
1154 | ql_dbg(ql_dbg_tgt, vha, 0xe021, |
1155 | "%s: enter\n", __func__); | |
1156 | ||
1157 | for_each_sg(sgl, sg, tot_dsds, i) { | |
bad75002 AE |
1158 | dma_addr_t sle_dma; |
1159 | ||
1160 | /* Allocate additional continuation packets? */ | |
1161 | if (avail_dsds == 0) { | |
1162 | avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ? | |
1163 | QLA_DSDS_PER_IOCB : used_dsds; | |
1164 | dsd_list_len = (avail_dsds + 1) * 12; | |
1165 | used_dsds -= avail_dsds; | |
1166 | ||
1167 | /* allocate tracking DS */ | |
1168 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
1169 | if (!dsd_ptr) | |
1170 | return 1; | |
1171 | ||
1172 | /* allocate new list */ | |
1173 | dsd_ptr->dsd_addr = next_dsd = | |
1174 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, | |
1175 | &dsd_ptr->dsd_list_dma); | |
1176 | ||
1177 | if (!next_dsd) { | |
1178 | /* | |
1179 | * Need to cleanup only this dsd_ptr, rest | |
1180 | * will be done by sp_free_dma() | |
1181 | */ | |
1182 | kfree(dsd_ptr); | |
1183 | return 1; | |
1184 | } | |
1185 | ||
f83adb61 QT |
1186 | if (sp) { |
1187 | list_add_tail(&dsd_ptr->list, | |
1188 | &((struct crc_context *) | |
1189 | sp->u.scmd.ctx)->dsd_list); | |
bad75002 | 1190 | |
f83adb61 QT |
1191 | sp->flags |= SRB_CRC_CTX_DSD_VALID; |
1192 | } else { | |
1193 | list_add_tail(&dsd_ptr->list, | |
1194 | &(tc->ctx->dsd_list)); | |
1195 | tc->ctx_dsd_alloced = 1; | |
1196 | } | |
bad75002 AE |
1197 | |
1198 | /* add new list to cmd iocb or last list */ | |
1199 | *cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma)); | |
1200 | *cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma)); | |
1201 | *cur_dsd++ = dsd_list_len; | |
1202 | cur_dsd = (uint32_t *)next_dsd; | |
1203 | } | |
1204 | sle_dma = sg_dma_address(sg); | |
9e522cd8 | 1205 | |
bad75002 AE |
1206 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); |
1207 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
1208 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
1209 | ||
bad75002 AE |
1210 | avail_dsds--; |
1211 | } | |
1212 | /* Null termination */ | |
1213 | *cur_dsd++ = 0; | |
1214 | *cur_dsd++ = 0; | |
1215 | *cur_dsd++ = 0; | |
1216 | return 0; | |
1217 | } | |
1218 | ||
1219 | /** | |
1220 | * qla24xx_build_scsi_crc_2_iocbs() - Build IOCB command utilizing Command | |
1221 | * Type 6 IOCB types. | |
1222 | * | |
1223 | * @sp: SRB command to process | |
1224 | * @cmd_pkt: Command type 3 IOCB | |
1225 | * @tot_dsds: Total number of segments to transfer | |
1226 | */ | |
1227 | static inline int | |
1228 | qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt, | |
1229 | uint16_t tot_dsds, uint16_t tot_prot_dsds, uint16_t fw_prot_opts) | |
1230 | { | |
1231 | uint32_t *cur_dsd, *fcp_dl; | |
1232 | scsi_qla_host_t *vha; | |
1233 | struct scsi_cmnd *cmd; | |
bad75002 | 1234 | int sgc; |
8cb2049c | 1235 | uint32_t total_bytes = 0; |
bad75002 AE |
1236 | uint32_t data_bytes; |
1237 | uint32_t dif_bytes; | |
1238 | uint8_t bundling = 1; | |
1239 | uint16_t blk_size; | |
1240 | uint8_t *clr_ptr; | |
1241 | struct crc_context *crc_ctx_pkt = NULL; | |
1242 | struct qla_hw_data *ha; | |
1243 | uint8_t additional_fcpcdb_len; | |
1244 | uint16_t fcp_cmnd_len; | |
1245 | struct fcp_cmnd *fcp_cmnd; | |
1246 | dma_addr_t crc_ctx_dma; | |
1247 | ||
9ba56b95 | 1248 | cmd = GET_CMD_SP(sp); |
bad75002 AE |
1249 | |
1250 | sgc = 0; | |
1251 | /* Update entry type to indicate Command Type CRC_2 IOCB */ | |
1252 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
1253 | __constant_cpu_to_le32(COMMAND_TYPE_CRC_2); | |
1254 | ||
7c3df132 SK |
1255 | vha = sp->fcport->vha; |
1256 | ha = vha->hw; | |
1257 | ||
bad75002 AE |
1258 | /* No data transfer */ |
1259 | data_bytes = scsi_bufflen(cmd); | |
1260 | if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { | |
bad75002 AE |
1261 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
1262 | return QLA_SUCCESS; | |
1263 | } | |
1264 | ||
c6d39e23 | 1265 | cmd_pkt->vp_index = sp->fcport->vha->vp_idx; |
bad75002 AE |
1266 | |
1267 | /* Set transfer direction */ | |
1268 | if (cmd->sc_data_direction == DMA_TO_DEVICE) { | |
1269 | cmd_pkt->control_flags = | |
1270 | __constant_cpu_to_le16(CF_WRITE_DATA); | |
1271 | } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
1272 | cmd_pkt->control_flags = | |
1273 | __constant_cpu_to_le16(CF_READ_DATA); | |
1274 | } | |
1275 | ||
9ba56b95 GM |
1276 | if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || |
1277 | (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP) || | |
1278 | (scsi_get_prot_op(cmd) == SCSI_PROT_READ_STRIP) || | |
1279 | (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_INSERT)) | |
bad75002 AE |
1280 | bundling = 0; |
1281 | ||
1282 | /* Allocate CRC context from global pool */ | |
9ba56b95 GM |
1283 | crc_ctx_pkt = sp->u.scmd.ctx = |
1284 | dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC, &crc_ctx_dma); | |
bad75002 AE |
1285 | |
1286 | if (!crc_ctx_pkt) | |
1287 | goto crc_queuing_error; | |
1288 | ||
1289 | /* Zero out CTX area. */ | |
1290 | clr_ptr = (uint8_t *)crc_ctx_pkt; | |
1291 | memset(clr_ptr, 0, sizeof(*crc_ctx_pkt)); | |
1292 | ||
1293 | crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma; | |
1294 | ||
1295 | sp->flags |= SRB_CRC_CTX_DMA_VALID; | |
1296 | ||
1297 | /* Set handle */ | |
1298 | crc_ctx_pkt->handle = cmd_pkt->handle; | |
1299 | ||
1300 | INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list); | |
1301 | ||
e02587d7 | 1302 | qla24xx_set_t10dif_tags(sp, (struct fw_dif_context *) |
bad75002 AE |
1303 | &crc_ctx_pkt->ref_tag, tot_prot_dsds); |
1304 | ||
1305 | cmd_pkt->crc_context_address[0] = cpu_to_le32(LSD(crc_ctx_dma)); | |
1306 | cmd_pkt->crc_context_address[1] = cpu_to_le32(MSD(crc_ctx_dma)); | |
1307 | cmd_pkt->crc_context_len = CRC_CONTEXT_LEN_FW; | |
1308 | ||
1309 | /* Determine SCSI command length -- align to 4 byte boundary */ | |
1310 | if (cmd->cmd_len > 16) { | |
bad75002 AE |
1311 | additional_fcpcdb_len = cmd->cmd_len - 16; |
1312 | if ((cmd->cmd_len % 4) != 0) { | |
1313 | /* SCSI cmd > 16 bytes must be multiple of 4 */ | |
1314 | goto crc_queuing_error; | |
1315 | } | |
1316 | fcp_cmnd_len = 12 + cmd->cmd_len + 4; | |
1317 | } else { | |
1318 | additional_fcpcdb_len = 0; | |
1319 | fcp_cmnd_len = 12 + 16 + 4; | |
1320 | } | |
1321 | ||
1322 | fcp_cmnd = &crc_ctx_pkt->fcp_cmnd; | |
1323 | ||
1324 | fcp_cmnd->additional_cdb_len = additional_fcpcdb_len; | |
1325 | if (cmd->sc_data_direction == DMA_TO_DEVICE) | |
1326 | fcp_cmnd->additional_cdb_len |= 1; | |
1327 | else if (cmd->sc_data_direction == DMA_FROM_DEVICE) | |
1328 | fcp_cmnd->additional_cdb_len |= 2; | |
1329 | ||
9ba56b95 | 1330 | int_to_scsilun(cmd->device->lun, &fcp_cmnd->lun); |
bad75002 AE |
1331 | memcpy(fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); |
1332 | cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(fcp_cmnd_len); | |
1333 | cmd_pkt->fcp_cmnd_dseg_address[0] = cpu_to_le32( | |
1334 | LSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF)); | |
1335 | cmd_pkt->fcp_cmnd_dseg_address[1] = cpu_to_le32( | |
1336 | MSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF)); | |
65155b37 | 1337 | fcp_cmnd->task_management = 0; |
50668633 | 1338 | fcp_cmnd->task_attribute = TSK_SIMPLE; |
ff2fc42e | 1339 | |
bad75002 AE |
1340 | cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */ |
1341 | ||
bad75002 | 1342 | /* Compute dif len and adjust data len to incude protection */ |
bad75002 AE |
1343 | dif_bytes = 0; |
1344 | blk_size = cmd->device->sector_size; | |
8cb2049c AE |
1345 | dif_bytes = (data_bytes / blk_size) * 8; |
1346 | ||
9ba56b95 | 1347 | switch (scsi_get_prot_op(GET_CMD_SP(sp))) { |
8cb2049c AE |
1348 | case SCSI_PROT_READ_INSERT: |
1349 | case SCSI_PROT_WRITE_STRIP: | |
1350 | total_bytes = data_bytes; | |
1351 | data_bytes += dif_bytes; | |
1352 | break; | |
1353 | ||
1354 | case SCSI_PROT_READ_STRIP: | |
1355 | case SCSI_PROT_WRITE_INSERT: | |
1356 | case SCSI_PROT_READ_PASS: | |
1357 | case SCSI_PROT_WRITE_PASS: | |
1358 | total_bytes = data_bytes + dif_bytes; | |
1359 | break; | |
1360 | default: | |
1361 | BUG(); | |
bad75002 AE |
1362 | } |
1363 | ||
e02587d7 | 1364 | if (!qla2x00_hba_err_chk_enabled(sp)) |
bad75002 | 1365 | fw_prot_opts |= 0x10; /* Disable Guard tag checking */ |
9e522cd8 AE |
1366 | /* HBA error checking enabled */ |
1367 | else if (IS_PI_UNINIT_CAPABLE(ha)) { | |
1368 | if ((scsi_get_prot_type(GET_CMD_SP(sp)) == SCSI_PROT_DIF_TYPE1) | |
1369 | || (scsi_get_prot_type(GET_CMD_SP(sp)) == | |
1370 | SCSI_PROT_DIF_TYPE2)) | |
1371 | fw_prot_opts |= BIT_10; | |
1372 | else if (scsi_get_prot_type(GET_CMD_SP(sp)) == | |
1373 | SCSI_PROT_DIF_TYPE3) | |
1374 | fw_prot_opts |= BIT_11; | |
1375 | } | |
bad75002 AE |
1376 | |
1377 | if (!bundling) { | |
1378 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.nobundling.data_address; | |
1379 | } else { | |
1380 | /* | |
1381 | * Configure Bundling if we need to fetch interlaving | |
1382 | * protection PCI accesses | |
1383 | */ | |
1384 | fw_prot_opts |= PO_ENABLE_DIF_BUNDLING; | |
1385 | crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes); | |
1386 | crc_ctx_pkt->u.bundling.dseg_count = cpu_to_le16(tot_dsds - | |
1387 | tot_prot_dsds); | |
1388 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.data_address; | |
1389 | } | |
1390 | ||
1391 | /* Finish the common fields of CRC pkt */ | |
1392 | crc_ctx_pkt->blk_size = cpu_to_le16(blk_size); | |
1393 | crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts); | |
1394 | crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes); | |
1395 | crc_ctx_pkt->guard_seed = __constant_cpu_to_le16(0); | |
1396 | /* Fibre channel byte count */ | |
1397 | cmd_pkt->byte_count = cpu_to_le32(total_bytes); | |
1398 | fcp_dl = (uint32_t *)(crc_ctx_pkt->fcp_cmnd.cdb + 16 + | |
1399 | additional_fcpcdb_len); | |
1400 | *fcp_dl = htonl(total_bytes); | |
1401 | ||
0c470874 | 1402 | if (!data_bytes || cmd->sc_data_direction == DMA_NONE) { |
0c470874 AE |
1403 | cmd_pkt->byte_count = __constant_cpu_to_le32(0); |
1404 | return QLA_SUCCESS; | |
1405 | } | |
bad75002 AE |
1406 | /* Walks data segments */ |
1407 | ||
1408 | cmd_pkt->control_flags |= | |
1409 | __constant_cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE); | |
8cb2049c AE |
1410 | |
1411 | if (!bundling && tot_prot_dsds) { | |
1412 | if (qla24xx_walk_and_build_sglist_no_difb(ha, sp, | |
f83adb61 | 1413 | cur_dsd, tot_dsds, NULL)) |
8cb2049c AE |
1414 | goto crc_queuing_error; |
1415 | } else if (qla24xx_walk_and_build_sglist(ha, sp, cur_dsd, | |
f83adb61 | 1416 | (tot_dsds - tot_prot_dsds), NULL)) |
bad75002 AE |
1417 | goto crc_queuing_error; |
1418 | ||
1419 | if (bundling && tot_prot_dsds) { | |
1420 | /* Walks dif segments */ | |
bad75002 AE |
1421 | cmd_pkt->control_flags |= |
1422 | __constant_cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE); | |
1423 | cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.dif_address; | |
1424 | if (qla24xx_walk_and_build_prot_sglist(ha, sp, cur_dsd, | |
f83adb61 | 1425 | tot_prot_dsds, NULL)) |
bad75002 AE |
1426 | goto crc_queuing_error; |
1427 | } | |
1428 | return QLA_SUCCESS; | |
1429 | ||
1430 | crc_queuing_error: | |
bad75002 AE |
1431 | /* Cleanup will be performed by the caller */ |
1432 | ||
1433 | return QLA_FUNCTION_FAILED; | |
1434 | } | |
2b6c0cee AV |
1435 | |
1436 | /** | |
1437 | * qla24xx_start_scsi() - Send a SCSI command to the ISP | |
1438 | * @sp: command to send to the ISP | |
1439 | * | |
cc3ef7bc | 1440 | * Returns non-zero if a failure occurred, else zero. |
2b6c0cee AV |
1441 | */ |
1442 | int | |
1443 | qla24xx_start_scsi(srb_t *sp) | |
1444 | { | |
385d70b4 | 1445 | int ret, nseg; |
2b6c0cee | 1446 | unsigned long flags; |
2b6c0cee AV |
1447 | uint32_t *clr_ptr; |
1448 | uint32_t index; | |
1449 | uint32_t handle; | |
1450 | struct cmd_type_7 *cmd_pkt; | |
2b6c0cee AV |
1451 | uint16_t cnt; |
1452 | uint16_t req_cnt; | |
1453 | uint16_t tot_dsds; | |
73208dfd AC |
1454 | struct req_que *req = NULL; |
1455 | struct rsp_que *rsp = NULL; | |
9ba56b95 | 1456 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
444786d7 | 1457 | struct scsi_qla_host *vha = sp->fcport->vha; |
73208dfd | 1458 | struct qla_hw_data *ha = vha->hw; |
2b6c0cee AV |
1459 | |
1460 | /* Setup device pointers. */ | |
1461 | ret = 0; | |
73208dfd | 1462 | |
59e0b8b0 AC |
1463 | qla25xx_set_que(sp, &rsp); |
1464 | req = vha->req; | |
73208dfd | 1465 | |
2b6c0cee AV |
1466 | /* So we know we haven't pci_map'ed anything yet */ |
1467 | tot_dsds = 0; | |
1468 | ||
1469 | /* Send marker if required */ | |
e315cd28 | 1470 | if (vha->marker_needed != 0) { |
7c3df132 SK |
1471 | if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != |
1472 | QLA_SUCCESS) | |
2b6c0cee | 1473 | return QLA_FUNCTION_FAILED; |
e315cd28 | 1474 | vha->marker_needed = 0; |
2b6c0cee AV |
1475 | } |
1476 | ||
1477 | /* Acquire ring specific lock */ | |
e315cd28 | 1478 | spin_lock_irqsave(&ha->hardware_lock, flags); |
2b6c0cee AV |
1479 | |
1480 | /* Check for room in outstanding command list. */ | |
e315cd28 | 1481 | handle = req->current_outstanding_cmd; |
8d93f550 | 1482 | for (index = 1; index < req->num_outstanding_cmds; index++) { |
2b6c0cee | 1483 | handle++; |
8d93f550 | 1484 | if (handle == req->num_outstanding_cmds) |
2b6c0cee | 1485 | handle = 1; |
e315cd28 | 1486 | if (!req->outstanding_cmds[handle]) |
2b6c0cee AV |
1487 | break; |
1488 | } | |
8d93f550 | 1489 | if (index == req->num_outstanding_cmds) |
2b6c0cee AV |
1490 | goto queuing_error; |
1491 | ||
1492 | /* Map the sg table so we have an accurate count of sg entries needed */ | |
2c3dfe3f SJ |
1493 | if (scsi_sg_count(cmd)) { |
1494 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
1495 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
1496 | if (unlikely(!nseg)) | |
2b6c0cee | 1497 | goto queuing_error; |
2c3dfe3f SJ |
1498 | } else |
1499 | nseg = 0; | |
1500 | ||
385d70b4 | 1501 | tot_dsds = nseg; |
7c3df132 | 1502 | req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); |
e315cd28 | 1503 | if (req->cnt < (req_cnt + 2)) { |
7c6300e3 JC |
1504 | cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : |
1505 | RD_REG_DWORD_RELAXED(req->req_q_out); | |
e315cd28 AC |
1506 | if (req->ring_index < cnt) |
1507 | req->cnt = cnt - req->ring_index; | |
2b6c0cee | 1508 | else |
e315cd28 AC |
1509 | req->cnt = req->length - |
1510 | (req->ring_index - cnt); | |
a6eb3c9f CL |
1511 | if (req->cnt < (req_cnt + 2)) |
1512 | goto queuing_error; | |
2b6c0cee | 1513 | } |
2b6c0cee AV |
1514 | |
1515 | /* Build command packet. */ | |
e315cd28 AC |
1516 | req->current_outstanding_cmd = handle; |
1517 | req->outstanding_cmds[handle] = sp; | |
cf53b069 | 1518 | sp->handle = handle; |
9ba56b95 | 1519 | cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
e315cd28 | 1520 | req->cnt -= req_cnt; |
2b6c0cee | 1521 | |
e315cd28 | 1522 | cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; |
2afa19a9 | 1523 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); |
2b6c0cee AV |
1524 | |
1525 | /* Zero out remaining portion of packet. */ | |
72df8325 | 1526 | /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ |
2b6c0cee AV |
1527 | clr_ptr = (uint32_t *)cmd_pkt + 2; |
1528 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
1529 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
1530 | ||
1531 | /* Set NPORT-ID and LUN number*/ | |
1532 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1533 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1534 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
1535 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
c6d39e23 | 1536 | cmd_pkt->vp_index = sp->fcport->vha->vp_idx; |
2b6c0cee | 1537 | |
9ba56b95 | 1538 | int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); |
0d4be124 | 1539 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); |
2b6c0cee | 1540 | |
50668633 | 1541 | cmd_pkt->task = TSK_SIMPLE; |
ff2fc42e | 1542 | |
2b6c0cee AV |
1543 | /* Load SCSI command packet. */ |
1544 | memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); | |
1545 | host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); | |
1546 | ||
385d70b4 | 1547 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); |
2b6c0cee AV |
1548 | |
1549 | /* Build IOCB segments */ | |
1550 | qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds); | |
1551 | ||
1552 | /* Set total data segment count. */ | |
1553 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
2afa19a9 AC |
1554 | /* Specify response queue number where completion should happen */ |
1555 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
2b6c0cee | 1556 | wmb(); |
2b6c0cee | 1557 | /* Adjust ring index. */ |
e315cd28 AC |
1558 | req->ring_index++; |
1559 | if (req->ring_index == req->length) { | |
1560 | req->ring_index = 0; | |
1561 | req->ring_ptr = req->ring; | |
2b6c0cee | 1562 | } else |
e315cd28 | 1563 | req->ring_ptr++; |
2b6c0cee AV |
1564 | |
1565 | sp->flags |= SRB_DMA_VALID; | |
2b6c0cee AV |
1566 | |
1567 | /* Set chip new ring index. */ | |
08029990 AV |
1568 | WRT_REG_DWORD(req->req_q_in, req->ring_index); |
1569 | RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); | |
2b6c0cee | 1570 | |
4fdfefe5 | 1571 | /* Manage unprocessed RIO/ZIO commands in response queue. */ |
e315cd28 | 1572 | if (vha->flags.process_response_queue && |
73208dfd | 1573 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) |
2afa19a9 | 1574 | qla24xx_process_response_queue(vha, rsp); |
4fdfefe5 | 1575 | |
e315cd28 | 1576 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
2b6c0cee AV |
1577 | return QLA_SUCCESS; |
1578 | ||
1579 | queuing_error: | |
385d70b4 FT |
1580 | if (tot_dsds) |
1581 | scsi_dma_unmap(cmd); | |
1582 | ||
e315cd28 | 1583 | spin_unlock_irqrestore(&ha->hardware_lock, flags); |
2b6c0cee AV |
1584 | |
1585 | return QLA_FUNCTION_FAILED; | |
1da177e4 | 1586 | } |
68ca949c | 1587 | |
bad75002 AE |
1588 | /** |
1589 | * qla24xx_dif_start_scsi() - Send a SCSI command to the ISP | |
1590 | * @sp: command to send to the ISP | |
1591 | * | |
1592 | * Returns non-zero if a failure occurred, else zero. | |
1593 | */ | |
1594 | int | |
1595 | qla24xx_dif_start_scsi(srb_t *sp) | |
1596 | { | |
1597 | int nseg; | |
1598 | unsigned long flags; | |
1599 | uint32_t *clr_ptr; | |
1600 | uint32_t index; | |
1601 | uint32_t handle; | |
1602 | uint16_t cnt; | |
1603 | uint16_t req_cnt = 0; | |
1604 | uint16_t tot_dsds; | |
1605 | uint16_t tot_prot_dsds; | |
1606 | uint16_t fw_prot_opts = 0; | |
1607 | struct req_que *req = NULL; | |
1608 | struct rsp_que *rsp = NULL; | |
9ba56b95 | 1609 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
bad75002 AE |
1610 | struct scsi_qla_host *vha = sp->fcport->vha; |
1611 | struct qla_hw_data *ha = vha->hw; | |
1612 | struct cmd_type_crc_2 *cmd_pkt; | |
1613 | uint32_t status = 0; | |
1614 | ||
1615 | #define QDSS_GOT_Q_SPACE BIT_0 | |
1616 | ||
0c470874 AE |
1617 | /* Only process protection or >16 cdb in this routine */ |
1618 | if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL) { | |
1619 | if (cmd->cmd_len <= 16) | |
1620 | return qla24xx_start_scsi(sp); | |
1621 | } | |
bad75002 AE |
1622 | |
1623 | /* Setup device pointers. */ | |
1624 | ||
1625 | qla25xx_set_que(sp, &rsp); | |
1626 | req = vha->req; | |
1627 | ||
1628 | /* So we know we haven't pci_map'ed anything yet */ | |
1629 | tot_dsds = 0; | |
1630 | ||
1631 | /* Send marker if required */ | |
1632 | if (vha->marker_needed != 0) { | |
1633 | if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) != | |
1634 | QLA_SUCCESS) | |
1635 | return QLA_FUNCTION_FAILED; | |
1636 | vha->marker_needed = 0; | |
1637 | } | |
1638 | ||
1639 | /* Acquire ring specific lock */ | |
1640 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
1641 | ||
1642 | /* Check for room in outstanding command list. */ | |
1643 | handle = req->current_outstanding_cmd; | |
8d93f550 | 1644 | for (index = 1; index < req->num_outstanding_cmds; index++) { |
bad75002 | 1645 | handle++; |
8d93f550 | 1646 | if (handle == req->num_outstanding_cmds) |
bad75002 AE |
1647 | handle = 1; |
1648 | if (!req->outstanding_cmds[handle]) | |
1649 | break; | |
1650 | } | |
1651 | ||
8d93f550 | 1652 | if (index == req->num_outstanding_cmds) |
bad75002 AE |
1653 | goto queuing_error; |
1654 | ||
1655 | /* Compute number of required data segments */ | |
1656 | /* Map the sg table so we have an accurate count of sg entries needed */ | |
1657 | if (scsi_sg_count(cmd)) { | |
1658 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
1659 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
1660 | if (unlikely(!nseg)) | |
1661 | goto queuing_error; | |
1662 | else | |
1663 | sp->flags |= SRB_DMA_VALID; | |
8cb2049c AE |
1664 | |
1665 | if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || | |
1666 | (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { | |
1667 | struct qla2_sgx sgx; | |
1668 | uint32_t partial; | |
1669 | ||
1670 | memset(&sgx, 0, sizeof(struct qla2_sgx)); | |
1671 | sgx.tot_bytes = scsi_bufflen(cmd); | |
1672 | sgx.cur_sg = scsi_sglist(cmd); | |
1673 | sgx.sp = sp; | |
1674 | ||
1675 | nseg = 0; | |
1676 | while (qla24xx_get_one_block_sg( | |
1677 | cmd->device->sector_size, &sgx, &partial)) | |
1678 | nseg++; | |
1679 | } | |
bad75002 AE |
1680 | } else |
1681 | nseg = 0; | |
1682 | ||
1683 | /* number of required data segments */ | |
1684 | tot_dsds = nseg; | |
1685 | ||
1686 | /* Compute number of required protection segments */ | |
1687 | if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) { | |
1688 | nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd), | |
1689 | scsi_prot_sg_count(cmd), cmd->sc_data_direction); | |
1690 | if (unlikely(!nseg)) | |
1691 | goto queuing_error; | |
1692 | else | |
1693 | sp->flags |= SRB_CRC_PROT_DMA_VALID; | |
8cb2049c AE |
1694 | |
1695 | if ((scsi_get_prot_op(cmd) == SCSI_PROT_READ_INSERT) || | |
1696 | (scsi_get_prot_op(cmd) == SCSI_PROT_WRITE_STRIP)) { | |
1697 | nseg = scsi_bufflen(cmd) / cmd->device->sector_size; | |
1698 | } | |
bad75002 AE |
1699 | } else { |
1700 | nseg = 0; | |
1701 | } | |
1702 | ||
1703 | req_cnt = 1; | |
1704 | /* Total Data and protection sg segment(s) */ | |
1705 | tot_prot_dsds = nseg; | |
1706 | tot_dsds += nseg; | |
1707 | if (req->cnt < (req_cnt + 2)) { | |
7c6300e3 JC |
1708 | cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : |
1709 | RD_REG_DWORD_RELAXED(req->req_q_out); | |
bad75002 AE |
1710 | if (req->ring_index < cnt) |
1711 | req->cnt = cnt - req->ring_index; | |
1712 | else | |
1713 | req->cnt = req->length - | |
1714 | (req->ring_index - cnt); | |
a6eb3c9f CL |
1715 | if (req->cnt < (req_cnt + 2)) |
1716 | goto queuing_error; | |
bad75002 AE |
1717 | } |
1718 | ||
bad75002 AE |
1719 | status |= QDSS_GOT_Q_SPACE; |
1720 | ||
1721 | /* Build header part of command packet (excluding the OPCODE). */ | |
1722 | req->current_outstanding_cmd = handle; | |
1723 | req->outstanding_cmds[handle] = sp; | |
8cb2049c | 1724 | sp->handle = handle; |
9ba56b95 | 1725 | cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
bad75002 AE |
1726 | req->cnt -= req_cnt; |
1727 | ||
1728 | /* Fill-in common area */ | |
1729 | cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr; | |
1730 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); | |
1731 | ||
1732 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
1733 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
1734 | ||
1735 | /* Set NPORT-ID and LUN number*/ | |
1736 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1737 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1738 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
1739 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
1740 | ||
9ba56b95 | 1741 | int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); |
bad75002 AE |
1742 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); |
1743 | ||
1744 | /* Total Data and protection segment(s) */ | |
1745 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
1746 | ||
1747 | /* Build IOCB segments and adjust for data protection segments */ | |
1748 | if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *) | |
1749 | req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) != | |
1750 | QLA_SUCCESS) | |
1751 | goto queuing_error; | |
1752 | ||
1753 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
1754 | /* Specify response queue number where completion should happen */ | |
1755 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
1756 | cmd_pkt->timeout = __constant_cpu_to_le16(0); | |
1757 | wmb(); | |
1758 | ||
1759 | /* Adjust ring index. */ | |
1760 | req->ring_index++; | |
1761 | if (req->ring_index == req->length) { | |
1762 | req->ring_index = 0; | |
1763 | req->ring_ptr = req->ring; | |
1764 | } else | |
1765 | req->ring_ptr++; | |
1766 | ||
1767 | /* Set chip new ring index. */ | |
1768 | WRT_REG_DWORD(req->req_q_in, req->ring_index); | |
1769 | RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr); | |
1770 | ||
1771 | /* Manage unprocessed RIO/ZIO commands in response queue. */ | |
1772 | if (vha->flags.process_response_queue && | |
1773 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) | |
1774 | qla24xx_process_response_queue(vha, rsp); | |
1775 | ||
1776 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
1777 | ||
1778 | return QLA_SUCCESS; | |
1779 | ||
1780 | queuing_error: | |
1781 | if (status & QDSS_GOT_Q_SPACE) { | |
1782 | req->outstanding_cmds[handle] = NULL; | |
1783 | req->cnt += req_cnt; | |
1784 | } | |
1785 | /* Cleanup will be performed by the caller (queuecommand) */ | |
1786 | ||
1787 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
bad75002 AE |
1788 | return QLA_FUNCTION_FAILED; |
1789 | } | |
1790 | ||
1791 | ||
59e0b8b0 | 1792 | static void qla25xx_set_que(srb_t *sp, struct rsp_que **rsp) |
68ca949c | 1793 | { |
9ba56b95 | 1794 | struct scsi_cmnd *cmd = GET_CMD_SP(sp); |
68ca949c AC |
1795 | struct qla_hw_data *ha = sp->fcport->vha->hw; |
1796 | int affinity = cmd->request->cpu; | |
1797 | ||
7163ea81 | 1798 | if (ha->flags.cpu_affinity_enabled && affinity >= 0 && |
59e0b8b0 | 1799 | affinity < ha->max_rsp_queues - 1) |
68ca949c | 1800 | *rsp = ha->rsp_q_map[affinity + 1]; |
59e0b8b0 | 1801 | else |
68ca949c | 1802 | *rsp = ha->rsp_q_map[0]; |
68ca949c | 1803 | } |
ac280b67 AV |
1804 | |
1805 | /* Generic Control-SRB manipulation functions. */ | |
b6a029e1 AE |
1806 | |
1807 | /* hardware_lock assumed to be held. */ | |
1808 | void * | |
1809 | qla2x00_alloc_iocbs_ready(scsi_qla_host_t *vha, srb_t *sp) | |
1810 | { | |
1811 | if (qla2x00_reset_active(vha)) | |
1812 | return NULL; | |
1813 | ||
1814 | return qla2x00_alloc_iocbs(vha, sp); | |
1815 | } | |
1816 | ||
d94d10e7 GM |
1817 | void * |
1818 | qla2x00_alloc_iocbs(scsi_qla_host_t *vha, srb_t *sp) | |
ac280b67 | 1819 | { |
ac280b67 AV |
1820 | struct qla_hw_data *ha = vha->hw; |
1821 | struct req_que *req = ha->req_q_map[0]; | |
1822 | device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id); | |
1823 | uint32_t index, handle; | |
1824 | request_t *pkt; | |
1825 | uint16_t cnt, req_cnt; | |
1826 | ||
1827 | pkt = NULL; | |
1828 | req_cnt = 1; | |
d94d10e7 GM |
1829 | handle = 0; |
1830 | ||
1831 | if (!sp) | |
1832 | goto skip_cmd_array; | |
ac280b67 AV |
1833 | |
1834 | /* Check for room in outstanding command list. */ | |
1835 | handle = req->current_outstanding_cmd; | |
4b4f30cc | 1836 | for (index = 1; index < req->num_outstanding_cmds; index++) { |
ac280b67 | 1837 | handle++; |
8d93f550 | 1838 | if (handle == req->num_outstanding_cmds) |
ac280b67 AV |
1839 | handle = 1; |
1840 | if (!req->outstanding_cmds[handle]) | |
1841 | break; | |
1842 | } | |
8d93f550 | 1843 | if (index == req->num_outstanding_cmds) { |
7c3df132 | 1844 | ql_log(ql_log_warn, vha, 0x700b, |
d6a03581 | 1845 | "No room on outstanding cmd array.\n"); |
ac280b67 | 1846 | goto queuing_error; |
7c3df132 | 1847 | } |
ac280b67 | 1848 | |
d94d10e7 GM |
1849 | /* Prep command array. */ |
1850 | req->current_outstanding_cmd = handle; | |
1851 | req->outstanding_cmds[handle] = sp; | |
1852 | sp->handle = handle; | |
1853 | ||
5780790e | 1854 | /* Adjust entry-counts as needed. */ |
9ba56b95 GM |
1855 | if (sp->type != SRB_SCSI_CMD) |
1856 | req_cnt = sp->iocbs; | |
5780790e | 1857 | |
d94d10e7 | 1858 | skip_cmd_array: |
ac280b67 | 1859 | /* Check for room on request queue. */ |
94007037 | 1860 | if (req->cnt < req_cnt + 2) { |
f73cb695 | 1861 | if (ha->mqenable || IS_QLA83XX(ha) || IS_QLA27XX(ha)) |
ac280b67 | 1862 | cnt = RD_REG_DWORD(®->isp25mq.req_q_out); |
7ec0effd | 1863 | else if (IS_P3P_TYPE(ha)) |
d94d10e7 | 1864 | cnt = RD_REG_DWORD(®->isp82.req_q_out); |
ac280b67 AV |
1865 | else if (IS_FWI2_CAPABLE(ha)) |
1866 | cnt = RD_REG_DWORD(®->isp24.req_q_out); | |
8ae6d9c7 GM |
1867 | else if (IS_QLAFX00(ha)) |
1868 | cnt = RD_REG_DWORD(®->ispfx00.req_q_out); | |
ac280b67 AV |
1869 | else |
1870 | cnt = qla2x00_debounce_register( | |
1871 | ISP_REQ_Q_OUT(ha, ®->isp)); | |
1872 | ||
1873 | if (req->ring_index < cnt) | |
1874 | req->cnt = cnt - req->ring_index; | |
1875 | else | |
1876 | req->cnt = req->length - | |
1877 | (req->ring_index - cnt); | |
1878 | } | |
94007037 | 1879 | if (req->cnt < req_cnt + 2) |
ac280b67 AV |
1880 | goto queuing_error; |
1881 | ||
1882 | /* Prep packet */ | |
ac280b67 | 1883 | req->cnt -= req_cnt; |
ac280b67 AV |
1884 | pkt = req->ring_ptr; |
1885 | memset(pkt, 0, REQUEST_ENTRY_SIZE); | |
8ae6d9c7 | 1886 | if (IS_QLAFX00(ha)) { |
1f8deefe SK |
1887 | WRT_REG_BYTE((void __iomem *)&pkt->entry_count, req_cnt); |
1888 | WRT_REG_WORD((void __iomem *)&pkt->handle, handle); | |
8ae6d9c7 GM |
1889 | } else { |
1890 | pkt->entry_count = req_cnt; | |
1891 | pkt->handle = handle; | |
1892 | } | |
ac280b67 AV |
1893 | |
1894 | queuing_error: | |
1895 | return pkt; | |
1896 | } | |
1897 | ||
ac280b67 AV |
1898 | static void |
1899 | qla24xx_login_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1900 | { | |
9ba56b95 | 1901 | struct srb_iocb *lio = &sp->u.iocb_cmd; |
ac280b67 AV |
1902 | |
1903 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1904 | logio->control_flags = cpu_to_le16(LCF_COMMAND_PLOGI); | |
4916392b | 1905 | if (lio->u.logio.flags & SRB_LOGIN_COND_PLOGI) |
ac280b67 | 1906 | logio->control_flags |= cpu_to_le16(LCF_COND_PLOGI); |
4916392b | 1907 | if (lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI) |
ac280b67 AV |
1908 | logio->control_flags |= cpu_to_le16(LCF_SKIP_PRLI); |
1909 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1910 | logio->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1911 | logio->port_id[1] = sp->fcport->d_id.b.area; | |
1912 | logio->port_id[2] = sp->fcport->d_id.b.domain; | |
c6d39e23 | 1913 | logio->vp_index = sp->fcport->vha->vp_idx; |
ac280b67 AV |
1914 | } |
1915 | ||
1916 | static void | |
1917 | qla2x00_login_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1918 | { | |
1919 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
9ba56b95 | 1920 | struct srb_iocb *lio = &sp->u.iocb_cmd; |
ac280b67 AV |
1921 | uint16_t opts; |
1922 | ||
b963752f | 1923 | mbx->entry_type = MBX_IOCB_TYPE; |
ac280b67 AV |
1924 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); |
1925 | mbx->mb0 = cpu_to_le16(MBC_LOGIN_FABRIC_PORT); | |
4916392b MI |
1926 | opts = lio->u.logio.flags & SRB_LOGIN_COND_PLOGI ? BIT_0 : 0; |
1927 | opts |= lio->u.logio.flags & SRB_LOGIN_SKIP_PRLI ? BIT_1 : 0; | |
ac280b67 AV |
1928 | if (HAS_EXTENDED_IDS(ha)) { |
1929 | mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); | |
1930 | mbx->mb10 = cpu_to_le16(opts); | |
1931 | } else { | |
1932 | mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | opts); | |
1933 | } | |
1934 | mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); | |
1935 | mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | | |
1936 | sp->fcport->d_id.b.al_pa); | |
c6d39e23 | 1937 | mbx->mb9 = cpu_to_le16(sp->fcport->vha->vp_idx); |
ac280b67 AV |
1938 | } |
1939 | ||
1940 | static void | |
1941 | qla24xx_logout_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1942 | { | |
1943 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1944 | logio->control_flags = | |
1945 | cpu_to_le16(LCF_COMMAND_LOGO|LCF_IMPL_LOGO); | |
1946 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
1947 | logio->port_id[0] = sp->fcport->d_id.b.al_pa; | |
1948 | logio->port_id[1] = sp->fcport->d_id.b.area; | |
1949 | logio->port_id[2] = sp->fcport->d_id.b.domain; | |
c6d39e23 | 1950 | logio->vp_index = sp->fcport->vha->vp_idx; |
ac280b67 AV |
1951 | } |
1952 | ||
1953 | static void | |
1954 | qla2x00_logout_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1955 | { | |
1956 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
1957 | ||
b963752f | 1958 | mbx->entry_type = MBX_IOCB_TYPE; |
ac280b67 AV |
1959 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); |
1960 | mbx->mb0 = cpu_to_le16(MBC_LOGOUT_FABRIC_PORT); | |
1961 | mbx->mb1 = HAS_EXTENDED_IDS(ha) ? | |
1962 | cpu_to_le16(sp->fcport->loop_id): | |
1963 | cpu_to_le16(sp->fcport->loop_id << 8); | |
1964 | mbx->mb2 = cpu_to_le16(sp->fcport->d_id.b.domain); | |
1965 | mbx->mb3 = cpu_to_le16(sp->fcport->d_id.b.area << 8 | | |
1966 | sp->fcport->d_id.b.al_pa); | |
c6d39e23 | 1967 | mbx->mb9 = cpu_to_le16(sp->fcport->vha->vp_idx); |
ac280b67 AV |
1968 | /* Implicit: mbx->mbx10 = 0. */ |
1969 | } | |
1970 | ||
5ff1d584 AV |
1971 | static void |
1972 | qla24xx_adisc_iocb(srb_t *sp, struct logio_entry_24xx *logio) | |
1973 | { | |
1974 | logio->entry_type = LOGINOUT_PORT_IOCB_TYPE; | |
1975 | logio->control_flags = cpu_to_le16(LCF_COMMAND_ADISC); | |
1976 | logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
c6d39e23 | 1977 | logio->vp_index = sp->fcport->vha->vp_idx; |
5ff1d584 AV |
1978 | } |
1979 | ||
1980 | static void | |
1981 | qla2x00_adisc_iocb(srb_t *sp, struct mbx_entry *mbx) | |
1982 | { | |
1983 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
1984 | ||
1985 | mbx->entry_type = MBX_IOCB_TYPE; | |
1986 | SET_TARGET_ID(ha, mbx->loop_id, sp->fcport->loop_id); | |
1987 | mbx->mb0 = cpu_to_le16(MBC_GET_PORT_DATABASE); | |
1988 | if (HAS_EXTENDED_IDS(ha)) { | |
1989 | mbx->mb1 = cpu_to_le16(sp->fcport->loop_id); | |
1990 | mbx->mb10 = cpu_to_le16(BIT_0); | |
1991 | } else { | |
1992 | mbx->mb1 = cpu_to_le16((sp->fcport->loop_id << 8) | BIT_0); | |
1993 | } | |
1994 | mbx->mb2 = cpu_to_le16(MSW(ha->async_pd_dma)); | |
1995 | mbx->mb3 = cpu_to_le16(LSW(ha->async_pd_dma)); | |
1996 | mbx->mb6 = cpu_to_le16(MSW(MSD(ha->async_pd_dma))); | |
1997 | mbx->mb7 = cpu_to_le16(LSW(MSD(ha->async_pd_dma))); | |
c6d39e23 | 1998 | mbx->mb9 = cpu_to_le16(sp->fcport->vha->vp_idx); |
5ff1d584 AV |
1999 | } |
2000 | ||
3822263e MI |
2001 | static void |
2002 | qla24xx_tm_iocb(srb_t *sp, struct tsk_mgmt_entry *tsk) | |
2003 | { | |
2004 | uint32_t flags; | |
9cb78c16 | 2005 | uint64_t lun; |
3822263e MI |
2006 | struct fc_port *fcport = sp->fcport; |
2007 | scsi_qla_host_t *vha = fcport->vha; | |
2008 | struct qla_hw_data *ha = vha->hw; | |
9ba56b95 | 2009 | struct srb_iocb *iocb = &sp->u.iocb_cmd; |
3822263e MI |
2010 | struct req_que *req = vha->req; |
2011 | ||
2012 | flags = iocb->u.tmf.flags; | |
2013 | lun = iocb->u.tmf.lun; | |
2014 | ||
2015 | tsk->entry_type = TSK_MGMT_IOCB_TYPE; | |
2016 | tsk->entry_count = 1; | |
2017 | tsk->handle = MAKE_HANDLE(req->id, tsk->handle); | |
2018 | tsk->nport_handle = cpu_to_le16(fcport->loop_id); | |
2019 | tsk->timeout = cpu_to_le16(ha->r_a_tov / 10 * 2); | |
2020 | tsk->control_flags = cpu_to_le32(flags); | |
2021 | tsk->port_id[0] = fcport->d_id.b.al_pa; | |
2022 | tsk->port_id[1] = fcport->d_id.b.area; | |
2023 | tsk->port_id[2] = fcport->d_id.b.domain; | |
c6d39e23 | 2024 | tsk->vp_index = fcport->vha->vp_idx; |
3822263e MI |
2025 | |
2026 | if (flags == TCF_LUN_RESET) { | |
2027 | int_to_scsilun(lun, &tsk->lun); | |
2028 | host_to_fcp_swap((uint8_t *)&tsk->lun, | |
2029 | sizeof(tsk->lun)); | |
2030 | } | |
2031 | } | |
2032 | ||
9a069e19 GM |
2033 | static void |
2034 | qla24xx_els_iocb(srb_t *sp, struct els_entry_24xx *els_iocb) | |
2035 | { | |
9ba56b95 | 2036 | struct fc_bsg_job *bsg_job = sp->u.bsg_job; |
9a069e19 GM |
2037 | |
2038 | els_iocb->entry_type = ELS_IOCB_TYPE; | |
2039 | els_iocb->entry_count = 1; | |
2040 | els_iocb->sys_define = 0; | |
2041 | els_iocb->entry_status = 0; | |
2042 | els_iocb->handle = sp->handle; | |
2043 | els_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
2044 | els_iocb->tx_dsd_count = __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
c6d39e23 | 2045 | els_iocb->vp_index = sp->fcport->vha->vp_idx; |
9a069e19 GM |
2046 | els_iocb->sof_type = EST_SOFI3; |
2047 | els_iocb->rx_dsd_count = __constant_cpu_to_le16(bsg_job->reply_payload.sg_cnt); | |
2048 | ||
4916392b | 2049 | els_iocb->opcode = |
9ba56b95 | 2050 | sp->type == SRB_ELS_CMD_RPT ? |
4916392b MI |
2051 | bsg_job->request->rqst_data.r_els.els_code : |
2052 | bsg_job->request->rqst_data.h_els.command_code; | |
9a069e19 GM |
2053 | els_iocb->port_id[0] = sp->fcport->d_id.b.al_pa; |
2054 | els_iocb->port_id[1] = sp->fcport->d_id.b.area; | |
2055 | els_iocb->port_id[2] = sp->fcport->d_id.b.domain; | |
2056 | els_iocb->control_flags = 0; | |
2057 | els_iocb->rx_byte_count = | |
2058 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
2059 | els_iocb->tx_byte_count = | |
2060 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
2061 | ||
2062 | els_iocb->tx_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2063 | (bsg_job->request_payload.sg_list))); | |
2064 | els_iocb->tx_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2065 | (bsg_job->request_payload.sg_list))); | |
2066 | els_iocb->tx_len = cpu_to_le32(sg_dma_len | |
2067 | (bsg_job->request_payload.sg_list)); | |
2068 | ||
2069 | els_iocb->rx_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2070 | (bsg_job->reply_payload.sg_list))); | |
2071 | els_iocb->rx_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2072 | (bsg_job->reply_payload.sg_list))); | |
2073 | els_iocb->rx_len = cpu_to_le32(sg_dma_len | |
2074 | (bsg_job->reply_payload.sg_list)); | |
fabbb8df JC |
2075 | |
2076 | sp->fcport->vha->qla_stats.control_requests++; | |
9a069e19 GM |
2077 | } |
2078 | ||
9bc4f4fb HZ |
2079 | static void |
2080 | qla2x00_ct_iocb(srb_t *sp, ms_iocb_entry_t *ct_iocb) | |
2081 | { | |
2082 | uint16_t avail_dsds; | |
2083 | uint32_t *cur_dsd; | |
2084 | struct scatterlist *sg; | |
2085 | int index; | |
2086 | uint16_t tot_dsds; | |
2087 | scsi_qla_host_t *vha = sp->fcport->vha; | |
2088 | struct qla_hw_data *ha = vha->hw; | |
9ba56b95 | 2089 | struct fc_bsg_job *bsg_job = sp->u.bsg_job; |
9bc4f4fb HZ |
2090 | int loop_iterartion = 0; |
2091 | int cont_iocb_prsnt = 0; | |
2092 | int entry_count = 1; | |
2093 | ||
2094 | memset(ct_iocb, 0, sizeof(ms_iocb_entry_t)); | |
2095 | ct_iocb->entry_type = CT_IOCB_TYPE; | |
2096 | ct_iocb->entry_status = 0; | |
2097 | ct_iocb->handle1 = sp->handle; | |
2098 | SET_TARGET_ID(ha, ct_iocb->loop_id, sp->fcport->loop_id); | |
2099 | ct_iocb->status = __constant_cpu_to_le16(0); | |
2100 | ct_iocb->control_flags = __constant_cpu_to_le16(0); | |
2101 | ct_iocb->timeout = 0; | |
2102 | ct_iocb->cmd_dsd_count = | |
2103 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
2104 | ct_iocb->total_dsd_count = | |
2105 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt + 1); | |
2106 | ct_iocb->req_bytecount = | |
2107 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
2108 | ct_iocb->rsp_bytecount = | |
2109 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
2110 | ||
2111 | ct_iocb->dseg_req_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2112 | (bsg_job->request_payload.sg_list))); | |
2113 | ct_iocb->dseg_req_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2114 | (bsg_job->request_payload.sg_list))); | |
2115 | ct_iocb->dseg_req_length = ct_iocb->req_bytecount; | |
2116 | ||
2117 | ct_iocb->dseg_rsp_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2118 | (bsg_job->reply_payload.sg_list))); | |
2119 | ct_iocb->dseg_rsp_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2120 | (bsg_job->reply_payload.sg_list))); | |
2121 | ct_iocb->dseg_rsp_length = ct_iocb->rsp_bytecount; | |
2122 | ||
2123 | avail_dsds = 1; | |
2124 | cur_dsd = (uint32_t *)ct_iocb->dseg_rsp_address; | |
2125 | index = 0; | |
2126 | tot_dsds = bsg_job->reply_payload.sg_cnt; | |
2127 | ||
2128 | for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) { | |
2129 | dma_addr_t sle_dma; | |
2130 | cont_a64_entry_t *cont_pkt; | |
2131 | ||
2132 | /* Allocate additional continuation packets? */ | |
2133 | if (avail_dsds == 0) { | |
2134 | /* | |
2135 | * Five DSDs are available in the Cont. | |
2136 | * Type 1 IOCB. | |
2137 | */ | |
0d2aa38e GM |
2138 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, |
2139 | vha->hw->req_q_map[0]); | |
9bc4f4fb HZ |
2140 | cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; |
2141 | avail_dsds = 5; | |
2142 | cont_iocb_prsnt = 1; | |
2143 | entry_count++; | |
2144 | } | |
2145 | ||
2146 | sle_dma = sg_dma_address(sg); | |
2147 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
2148 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
2149 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
2150 | loop_iterartion++; | |
2151 | avail_dsds--; | |
2152 | } | |
2153 | ct_iocb->entry_count = entry_count; | |
fabbb8df JC |
2154 | |
2155 | sp->fcport->vha->qla_stats.control_requests++; | |
9bc4f4fb HZ |
2156 | } |
2157 | ||
9a069e19 GM |
2158 | static void |
2159 | qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb) | |
2160 | { | |
2161 | uint16_t avail_dsds; | |
2162 | uint32_t *cur_dsd; | |
2163 | struct scatterlist *sg; | |
2164 | int index; | |
2165 | uint16_t tot_dsds; | |
2166 | scsi_qla_host_t *vha = sp->fcport->vha; | |
0d2aa38e | 2167 | struct qla_hw_data *ha = vha->hw; |
9ba56b95 | 2168 | struct fc_bsg_job *bsg_job = sp->u.bsg_job; |
9a069e19 GM |
2169 | int loop_iterartion = 0; |
2170 | int cont_iocb_prsnt = 0; | |
2171 | int entry_count = 1; | |
2172 | ||
2173 | ct_iocb->entry_type = CT_IOCB_TYPE; | |
2174 | ct_iocb->entry_status = 0; | |
2175 | ct_iocb->sys_define = 0; | |
2176 | ct_iocb->handle = sp->handle; | |
2177 | ||
2178 | ct_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
c6d39e23 | 2179 | ct_iocb->vp_index = sp->fcport->vha->vp_idx; |
9a069e19 GM |
2180 | ct_iocb->comp_status = __constant_cpu_to_le16(0); |
2181 | ||
2182 | ct_iocb->cmd_dsd_count = | |
2183 | __constant_cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
2184 | ct_iocb->timeout = 0; | |
2185 | ct_iocb->rsp_dsd_count = | |
2186 | __constant_cpu_to_le16(bsg_job->reply_payload.sg_cnt); | |
2187 | ct_iocb->rsp_byte_count = | |
2188 | cpu_to_le32(bsg_job->reply_payload.payload_len); | |
2189 | ct_iocb->cmd_byte_count = | |
2190 | cpu_to_le32(bsg_job->request_payload.payload_len); | |
2191 | ct_iocb->dseg_0_address[0] = cpu_to_le32(LSD(sg_dma_address | |
2192 | (bsg_job->request_payload.sg_list))); | |
2193 | ct_iocb->dseg_0_address[1] = cpu_to_le32(MSD(sg_dma_address | |
2194 | (bsg_job->request_payload.sg_list))); | |
2195 | ct_iocb->dseg_0_len = cpu_to_le32(sg_dma_len | |
2196 | (bsg_job->request_payload.sg_list)); | |
2197 | ||
2198 | avail_dsds = 1; | |
2199 | cur_dsd = (uint32_t *)ct_iocb->dseg_1_address; | |
2200 | index = 0; | |
2201 | tot_dsds = bsg_job->reply_payload.sg_cnt; | |
2202 | ||
2203 | for_each_sg(bsg_job->reply_payload.sg_list, sg, tot_dsds, index) { | |
2204 | dma_addr_t sle_dma; | |
2205 | cont_a64_entry_t *cont_pkt; | |
2206 | ||
2207 | /* Allocate additional continuation packets? */ | |
2208 | if (avail_dsds == 0) { | |
2209 | /* | |
2210 | * Five DSDs are available in the Cont. | |
2211 | * Type 1 IOCB. | |
2212 | */ | |
0d2aa38e GM |
2213 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, |
2214 | ha->req_q_map[0]); | |
9a069e19 GM |
2215 | cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; |
2216 | avail_dsds = 5; | |
2217 | cont_iocb_prsnt = 1; | |
2218 | entry_count++; | |
2219 | } | |
2220 | ||
2221 | sle_dma = sg_dma_address(sg); | |
2222 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
2223 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
2224 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
2225 | loop_iterartion++; | |
2226 | avail_dsds--; | |
2227 | } | |
2228 | ct_iocb->entry_count = entry_count; | |
2229 | } | |
2230 | ||
5162cf0c GM |
2231 | /* |
2232 | * qla82xx_start_scsi() - Send a SCSI command to the ISP | |
2233 | * @sp: command to send to the ISP | |
2234 | * | |
2235 | * Returns non-zero if a failure occurred, else zero. | |
2236 | */ | |
2237 | int | |
2238 | qla82xx_start_scsi(srb_t *sp) | |
2239 | { | |
2240 | int ret, nseg; | |
2241 | unsigned long flags; | |
2242 | struct scsi_cmnd *cmd; | |
2243 | uint32_t *clr_ptr; | |
2244 | uint32_t index; | |
2245 | uint32_t handle; | |
2246 | uint16_t cnt; | |
2247 | uint16_t req_cnt; | |
2248 | uint16_t tot_dsds; | |
2249 | struct device_reg_82xx __iomem *reg; | |
2250 | uint32_t dbval; | |
2251 | uint32_t *fcp_dl; | |
2252 | uint8_t additional_cdb_len; | |
2253 | struct ct6_dsd *ctx; | |
2254 | struct scsi_qla_host *vha = sp->fcport->vha; | |
2255 | struct qla_hw_data *ha = vha->hw; | |
2256 | struct req_que *req = NULL; | |
2257 | struct rsp_que *rsp = NULL; | |
5162cf0c GM |
2258 | |
2259 | /* Setup device pointers. */ | |
2260 | ret = 0; | |
2261 | reg = &ha->iobase->isp82; | |
9ba56b95 | 2262 | cmd = GET_CMD_SP(sp); |
5162cf0c GM |
2263 | req = vha->req; |
2264 | rsp = ha->rsp_q_map[0]; | |
2265 | ||
2266 | /* So we know we haven't pci_map'ed anything yet */ | |
2267 | tot_dsds = 0; | |
2268 | ||
2269 | dbval = 0x04 | (ha->portnum << 5); | |
2270 | ||
2271 | /* Send marker if required */ | |
2272 | if (vha->marker_needed != 0) { | |
2273 | if (qla2x00_marker(vha, req, | |
2274 | rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) { | |
2275 | ql_log(ql_log_warn, vha, 0x300c, | |
2276 | "qla2x00_marker failed for cmd=%p.\n", cmd); | |
2277 | return QLA_FUNCTION_FAILED; | |
2278 | } | |
2279 | vha->marker_needed = 0; | |
2280 | } | |
2281 | ||
2282 | /* Acquire ring specific lock */ | |
2283 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
2284 | ||
2285 | /* Check for room in outstanding command list. */ | |
2286 | handle = req->current_outstanding_cmd; | |
8d93f550 | 2287 | for (index = 1; index < req->num_outstanding_cmds; index++) { |
5162cf0c | 2288 | handle++; |
8d93f550 | 2289 | if (handle == req->num_outstanding_cmds) |
5162cf0c GM |
2290 | handle = 1; |
2291 | if (!req->outstanding_cmds[handle]) | |
2292 | break; | |
2293 | } | |
8d93f550 | 2294 | if (index == req->num_outstanding_cmds) |
5162cf0c GM |
2295 | goto queuing_error; |
2296 | ||
2297 | /* Map the sg table so we have an accurate count of sg entries needed */ | |
2298 | if (scsi_sg_count(cmd)) { | |
2299 | nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd), | |
2300 | scsi_sg_count(cmd), cmd->sc_data_direction); | |
2301 | if (unlikely(!nseg)) | |
2302 | goto queuing_error; | |
2303 | } else | |
2304 | nseg = 0; | |
2305 | ||
2306 | tot_dsds = nseg; | |
2307 | ||
2308 | if (tot_dsds > ql2xshiftctondsd) { | |
2309 | struct cmd_type_6 *cmd_pkt; | |
2310 | uint16_t more_dsd_lists = 0; | |
2311 | struct dsd_dma *dsd_ptr; | |
2312 | uint16_t i; | |
2313 | ||
2314 | more_dsd_lists = qla24xx_calc_dsd_lists(tot_dsds); | |
2315 | if ((more_dsd_lists + ha->gbl_dsd_inuse) >= NUM_DSD_CHAIN) { | |
2316 | ql_dbg(ql_dbg_io, vha, 0x300d, | |
2317 | "Num of DSD list %d is than %d for cmd=%p.\n", | |
2318 | more_dsd_lists + ha->gbl_dsd_inuse, NUM_DSD_CHAIN, | |
2319 | cmd); | |
2320 | goto queuing_error; | |
2321 | } | |
2322 | ||
2323 | if (more_dsd_lists <= ha->gbl_dsd_avail) | |
2324 | goto sufficient_dsds; | |
2325 | else | |
2326 | more_dsd_lists -= ha->gbl_dsd_avail; | |
2327 | ||
2328 | for (i = 0; i < more_dsd_lists; i++) { | |
2329 | dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC); | |
2330 | if (!dsd_ptr) { | |
2331 | ql_log(ql_log_fatal, vha, 0x300e, | |
2332 | "Failed to allocate memory for dsd_dma " | |
2333 | "for cmd=%p.\n", cmd); | |
2334 | goto queuing_error; | |
2335 | } | |
2336 | ||
2337 | dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool, | |
2338 | GFP_ATOMIC, &dsd_ptr->dsd_list_dma); | |
2339 | if (!dsd_ptr->dsd_addr) { | |
2340 | kfree(dsd_ptr); | |
2341 | ql_log(ql_log_fatal, vha, 0x300f, | |
2342 | "Failed to allocate memory for dsd_addr " | |
2343 | "for cmd=%p.\n", cmd); | |
2344 | goto queuing_error; | |
2345 | } | |
2346 | list_add_tail(&dsd_ptr->list, &ha->gbl_dsd_list); | |
2347 | ha->gbl_dsd_avail++; | |
2348 | } | |
2349 | ||
2350 | sufficient_dsds: | |
2351 | req_cnt = 1; | |
2352 | ||
2353 | if (req->cnt < (req_cnt + 2)) { | |
2354 | cnt = (uint16_t)RD_REG_DWORD_RELAXED( | |
2355 | ®->req_q_out[0]); | |
2356 | if (req->ring_index < cnt) | |
2357 | req->cnt = cnt - req->ring_index; | |
2358 | else | |
2359 | req->cnt = req->length - | |
2360 | (req->ring_index - cnt); | |
a6eb3c9f CL |
2361 | if (req->cnt < (req_cnt + 2)) |
2362 | goto queuing_error; | |
5162cf0c GM |
2363 | } |
2364 | ||
9ba56b95 GM |
2365 | ctx = sp->u.scmd.ctx = |
2366 | mempool_alloc(ha->ctx_mempool, GFP_ATOMIC); | |
2367 | if (!ctx) { | |
5162cf0c GM |
2368 | ql_log(ql_log_fatal, vha, 0x3010, |
2369 | "Failed to allocate ctx for cmd=%p.\n", cmd); | |
2370 | goto queuing_error; | |
2371 | } | |
9ba56b95 | 2372 | |
5162cf0c GM |
2373 | memset(ctx, 0, sizeof(struct ct6_dsd)); |
2374 | ctx->fcp_cmnd = dma_pool_alloc(ha->fcp_cmnd_dma_pool, | |
2375 | GFP_ATOMIC, &ctx->fcp_cmnd_dma); | |
2376 | if (!ctx->fcp_cmnd) { | |
2377 | ql_log(ql_log_fatal, vha, 0x3011, | |
2378 | "Failed to allocate fcp_cmnd for cmd=%p.\n", cmd); | |
841f97bf | 2379 | goto queuing_error; |
5162cf0c GM |
2380 | } |
2381 | ||
2382 | /* Initialize the DSD list and dma handle */ | |
2383 | INIT_LIST_HEAD(&ctx->dsd_list); | |
2384 | ctx->dsd_use_cnt = 0; | |
2385 | ||
2386 | if (cmd->cmd_len > 16) { | |
2387 | additional_cdb_len = cmd->cmd_len - 16; | |
2388 | if ((cmd->cmd_len % 4) != 0) { | |
2389 | /* SCSI command bigger than 16 bytes must be | |
2390 | * multiple of 4 | |
2391 | */ | |
2392 | ql_log(ql_log_warn, vha, 0x3012, | |
2393 | "scsi cmd len %d not multiple of 4 " | |
2394 | "for cmd=%p.\n", cmd->cmd_len, cmd); | |
2395 | goto queuing_error_fcp_cmnd; | |
2396 | } | |
2397 | ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4; | |
2398 | } else { | |
2399 | additional_cdb_len = 0; | |
2400 | ctx->fcp_cmnd_len = 12 + 16 + 4; | |
2401 | } | |
2402 | ||
2403 | cmd_pkt = (struct cmd_type_6 *)req->ring_ptr; | |
2404 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); | |
2405 | ||
2406 | /* Zero out remaining portion of packet. */ | |
2407 | /* tagged queuing modifier -- default is TSK_SIMPLE (0). */ | |
2408 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
2409 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
2410 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
2411 | ||
2412 | /* Set NPORT-ID and LUN number*/ | |
2413 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
2414 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
2415 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
2416 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
c6d39e23 | 2417 | cmd_pkt->vp_index = sp->fcport->vha->vp_idx; |
5162cf0c GM |
2418 | |
2419 | /* Build IOCB segments */ | |
2420 | if (qla24xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds)) | |
2421 | goto queuing_error_fcp_cmnd; | |
2422 | ||
9ba56b95 | 2423 | int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); |
5162cf0c GM |
2424 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun)); |
2425 | ||
2426 | /* build FCP_CMND IU */ | |
2427 | memset(ctx->fcp_cmnd, 0, sizeof(struct fcp_cmnd)); | |
9ba56b95 | 2428 | int_to_scsilun(cmd->device->lun, &ctx->fcp_cmnd->lun); |
5162cf0c GM |
2429 | ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len; |
2430 | ||
2431 | if (cmd->sc_data_direction == DMA_TO_DEVICE) | |
2432 | ctx->fcp_cmnd->additional_cdb_len |= 1; | |
2433 | else if (cmd->sc_data_direction == DMA_FROM_DEVICE) | |
2434 | ctx->fcp_cmnd->additional_cdb_len |= 2; | |
2435 | ||
a00f6296 SK |
2436 | /* Populate the FCP_PRIO. */ |
2437 | if (ha->flags.fcp_prio_enabled) | |
2438 | ctx->fcp_cmnd->task_attribute |= | |
2439 | sp->fcport->fcp_prio << 3; | |
2440 | ||
5162cf0c GM |
2441 | memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len); |
2442 | ||
2443 | fcp_dl = (uint32_t *)(ctx->fcp_cmnd->cdb + 16 + | |
2444 | additional_cdb_len); | |
2445 | *fcp_dl = htonl((uint32_t)scsi_bufflen(cmd)); | |
2446 | ||
2447 | cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len); | |
2448 | cmd_pkt->fcp_cmnd_dseg_address[0] = | |
2449 | cpu_to_le32(LSD(ctx->fcp_cmnd_dma)); | |
2450 | cmd_pkt->fcp_cmnd_dseg_address[1] = | |
2451 | cpu_to_le32(MSD(ctx->fcp_cmnd_dma)); | |
2452 | ||
2453 | sp->flags |= SRB_FCP_CMND_DMA_VALID; | |
2454 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); | |
2455 | /* Set total data segment count. */ | |
2456 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
2457 | /* Specify response queue number where | |
2458 | * completion should happen | |
2459 | */ | |
2460 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
2461 | } else { | |
2462 | struct cmd_type_7 *cmd_pkt; | |
2463 | req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); | |
2464 | if (req->cnt < (req_cnt + 2)) { | |
2465 | cnt = (uint16_t)RD_REG_DWORD_RELAXED( | |
2466 | ®->req_q_out[0]); | |
2467 | if (req->ring_index < cnt) | |
2468 | req->cnt = cnt - req->ring_index; | |
2469 | else | |
2470 | req->cnt = req->length - | |
2471 | (req->ring_index - cnt); | |
2472 | } | |
2473 | if (req->cnt < (req_cnt + 2)) | |
2474 | goto queuing_error; | |
2475 | ||
2476 | cmd_pkt = (struct cmd_type_7 *)req->ring_ptr; | |
2477 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); | |
2478 | ||
2479 | /* Zero out remaining portion of packet. */ | |
2480 | /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/ | |
2481 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
2482 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
2483 | cmd_pkt->dseg_count = cpu_to_le16(tot_dsds); | |
2484 | ||
2485 | /* Set NPORT-ID and LUN number*/ | |
2486 | cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
2487 | cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa; | |
2488 | cmd_pkt->port_id[1] = sp->fcport->d_id.b.area; | |
2489 | cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain; | |
c6d39e23 | 2490 | cmd_pkt->vp_index = sp->fcport->vha->vp_idx; |
5162cf0c | 2491 | |
9ba56b95 | 2492 | int_to_scsilun(cmd->device->lun, &cmd_pkt->lun); |
5162cf0c | 2493 | host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, |
9ba56b95 | 2494 | sizeof(cmd_pkt->lun)); |
5162cf0c | 2495 | |
a00f6296 SK |
2496 | /* Populate the FCP_PRIO. */ |
2497 | if (ha->flags.fcp_prio_enabled) | |
2498 | cmd_pkt->task |= sp->fcport->fcp_prio << 3; | |
2499 | ||
5162cf0c GM |
2500 | /* Load SCSI command packet. */ |
2501 | memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len); | |
2502 | host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb)); | |
2503 | ||
2504 | cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd)); | |
2505 | ||
2506 | /* Build IOCB segments */ | |
2507 | qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds); | |
2508 | ||
2509 | /* Set total data segment count. */ | |
2510 | cmd_pkt->entry_count = (uint8_t)req_cnt; | |
2511 | /* Specify response queue number where | |
2512 | * completion should happen. | |
2513 | */ | |
2514 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
2515 | ||
2516 | } | |
2517 | /* Build command packet. */ | |
2518 | req->current_outstanding_cmd = handle; | |
2519 | req->outstanding_cmds[handle] = sp; | |
2520 | sp->handle = handle; | |
9ba56b95 | 2521 | cmd->host_scribble = (unsigned char *)(unsigned long)handle; |
5162cf0c GM |
2522 | req->cnt -= req_cnt; |
2523 | wmb(); | |
2524 | ||
2525 | /* Adjust ring index. */ | |
2526 | req->ring_index++; | |
2527 | if (req->ring_index == req->length) { | |
2528 | req->ring_index = 0; | |
2529 | req->ring_ptr = req->ring; | |
2530 | } else | |
2531 | req->ring_ptr++; | |
2532 | ||
2533 | sp->flags |= SRB_DMA_VALID; | |
2534 | ||
2535 | /* Set chip new ring index. */ | |
2536 | /* write, read and verify logic */ | |
2537 | dbval = dbval | (req->id << 8) | (req->ring_index << 16); | |
2538 | if (ql2xdbwr) | |
2539 | qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval); | |
2540 | else { | |
2541 | WRT_REG_DWORD( | |
2542 | (unsigned long __iomem *)ha->nxdb_wr_ptr, | |
2543 | dbval); | |
2544 | wmb(); | |
fa492630 | 2545 | while (RD_REG_DWORD((void __iomem *)ha->nxdb_rd_ptr) != dbval) { |
5162cf0c GM |
2546 | WRT_REG_DWORD( |
2547 | (unsigned long __iomem *)ha->nxdb_wr_ptr, | |
2548 | dbval); | |
2549 | wmb(); | |
2550 | } | |
2551 | } | |
2552 | ||
2553 | /* Manage unprocessed RIO/ZIO commands in response queue. */ | |
2554 | if (vha->flags.process_response_queue && | |
2555 | rsp->ring_ptr->signature != RESPONSE_PROCESSED) | |
2556 | qla24xx_process_response_queue(vha, rsp); | |
2557 | ||
2558 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2559 | return QLA_SUCCESS; | |
2560 | ||
2561 | queuing_error_fcp_cmnd: | |
2562 | dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma); | |
2563 | queuing_error: | |
2564 | if (tot_dsds) | |
2565 | scsi_dma_unmap(cmd); | |
2566 | ||
9ba56b95 GM |
2567 | if (sp->u.scmd.ctx) { |
2568 | mempool_free(sp->u.scmd.ctx, ha->ctx_mempool); | |
2569 | sp->u.scmd.ctx = NULL; | |
5162cf0c GM |
2570 | } |
2571 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2572 | ||
2573 | return QLA_FUNCTION_FAILED; | |
2574 | } | |
2575 | ||
6d78e557 | 2576 | static void |
4440e46d AB |
2577 | qla24xx_abort_iocb(srb_t *sp, struct abort_entry_24xx *abt_iocb) |
2578 | { | |
2579 | struct srb_iocb *aio = &sp->u.iocb_cmd; | |
2580 | scsi_qla_host_t *vha = sp->fcport->vha; | |
2581 | struct req_que *req = vha->req; | |
2582 | ||
2583 | memset(abt_iocb, 0, sizeof(struct abort_entry_24xx)); | |
2584 | abt_iocb->entry_type = ABORT_IOCB_TYPE; | |
2585 | abt_iocb->entry_count = 1; | |
2586 | abt_iocb->handle = cpu_to_le32(MAKE_HANDLE(req->id, sp->handle)); | |
2587 | abt_iocb->nport_handle = cpu_to_le16(sp->fcport->loop_id); | |
2588 | abt_iocb->handle_to_abort = | |
2589 | cpu_to_le32(MAKE_HANDLE(req->id, aio->u.abt.cmd_hndl)); | |
2590 | abt_iocb->port_id[0] = sp->fcport->d_id.b.al_pa; | |
2591 | abt_iocb->port_id[1] = sp->fcport->d_id.b.area; | |
2592 | abt_iocb->port_id[2] = sp->fcport->d_id.b.domain; | |
2593 | abt_iocb->vp_index = vha->vp_idx; | |
2594 | abt_iocb->req_que_no = cpu_to_le16(req->id); | |
2595 | /* Send the command to the firmware */ | |
2596 | wmb(); | |
2597 | } | |
2598 | ||
ac280b67 AV |
2599 | int |
2600 | qla2x00_start_sp(srb_t *sp) | |
2601 | { | |
2602 | int rval; | |
2603 | struct qla_hw_data *ha = sp->fcport->vha->hw; | |
2604 | void *pkt; | |
ac280b67 AV |
2605 | unsigned long flags; |
2606 | ||
2607 | rval = QLA_FUNCTION_FAILED; | |
2608 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
d94d10e7 | 2609 | pkt = qla2x00_alloc_iocbs(sp->fcport->vha, sp); |
7c3df132 SK |
2610 | if (!pkt) { |
2611 | ql_log(ql_log_warn, sp->fcport->vha, 0x700c, | |
2612 | "qla2x00_alloc_iocbs failed.\n"); | |
ac280b67 | 2613 | goto done; |
7c3df132 | 2614 | } |
ac280b67 AV |
2615 | |
2616 | rval = QLA_SUCCESS; | |
9ba56b95 | 2617 | switch (sp->type) { |
ac280b67 AV |
2618 | case SRB_LOGIN_CMD: |
2619 | IS_FWI2_CAPABLE(ha) ? | |
5ff1d584 | 2620 | qla24xx_login_iocb(sp, pkt) : |
ac280b67 AV |
2621 | qla2x00_login_iocb(sp, pkt); |
2622 | break; | |
2623 | case SRB_LOGOUT_CMD: | |
2624 | IS_FWI2_CAPABLE(ha) ? | |
5ff1d584 | 2625 | qla24xx_logout_iocb(sp, pkt) : |
ac280b67 AV |
2626 | qla2x00_logout_iocb(sp, pkt); |
2627 | break; | |
9a069e19 GM |
2628 | case SRB_ELS_CMD_RPT: |
2629 | case SRB_ELS_CMD_HST: | |
2630 | qla24xx_els_iocb(sp, pkt); | |
2631 | break; | |
2632 | case SRB_CT_CMD: | |
9bc4f4fb | 2633 | IS_FWI2_CAPABLE(ha) ? |
5780790e AV |
2634 | qla24xx_ct_iocb(sp, pkt) : |
2635 | qla2x00_ct_iocb(sp, pkt); | |
9a069e19 | 2636 | break; |
5ff1d584 AV |
2637 | case SRB_ADISC_CMD: |
2638 | IS_FWI2_CAPABLE(ha) ? | |
2639 | qla24xx_adisc_iocb(sp, pkt) : | |
2640 | qla2x00_adisc_iocb(sp, pkt); | |
2641 | break; | |
3822263e | 2642 | case SRB_TM_CMD: |
8ae6d9c7 GM |
2643 | IS_QLAFX00(ha) ? |
2644 | qlafx00_tm_iocb(sp, pkt) : | |
2645 | qla24xx_tm_iocb(sp, pkt); | |
2646 | break; | |
2647 | case SRB_FXIOCB_DCMD: | |
2648 | case SRB_FXIOCB_BCMD: | |
2649 | qlafx00_fxdisc_iocb(sp, pkt); | |
2650 | break; | |
2651 | case SRB_ABT_CMD: | |
4440e46d AB |
2652 | IS_QLAFX00(ha) ? |
2653 | qlafx00_abort_iocb(sp, pkt) : | |
2654 | qla24xx_abort_iocb(sp, pkt); | |
3822263e | 2655 | break; |
ac280b67 AV |
2656 | default: |
2657 | break; | |
2658 | } | |
2659 | ||
2660 | wmb(); | |
5162cf0c | 2661 | qla2x00_start_iocbs(sp->fcport->vha, ha->req_q_map[0]); |
ac280b67 AV |
2662 | done: |
2663 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2664 | return rval; | |
2665 | } | |
a9b6f722 SK |
2666 | |
2667 | static void | |
2668 | qla25xx_build_bidir_iocb(srb_t *sp, struct scsi_qla_host *vha, | |
2669 | struct cmd_bidir *cmd_pkt, uint32_t tot_dsds) | |
2670 | { | |
2671 | uint16_t avail_dsds; | |
2672 | uint32_t *cur_dsd; | |
2673 | uint32_t req_data_len = 0; | |
2674 | uint32_t rsp_data_len = 0; | |
2675 | struct scatterlist *sg; | |
2676 | int index; | |
2677 | int entry_count = 1; | |
2678 | struct fc_bsg_job *bsg_job = sp->u.bsg_job; | |
2679 | ||
2680 | /*Update entry type to indicate bidir command */ | |
2681 | *((uint32_t *)(&cmd_pkt->entry_type)) = | |
2682 | __constant_cpu_to_le32(COMMAND_BIDIRECTIONAL); | |
2683 | ||
2684 | /* Set the transfer direction, in this set both flags | |
2685 | * Also set the BD_WRAP_BACK flag, firmware will take care | |
2686 | * assigning DID=SID for outgoing pkts. | |
2687 | */ | |
2688 | cmd_pkt->wr_dseg_count = cpu_to_le16(bsg_job->request_payload.sg_cnt); | |
2689 | cmd_pkt->rd_dseg_count = cpu_to_le16(bsg_job->reply_payload.sg_cnt); | |
2690 | cmd_pkt->control_flags = | |
2691 | __constant_cpu_to_le16(BD_WRITE_DATA | BD_READ_DATA | | |
2692 | BD_WRAP_BACK); | |
2693 | ||
2694 | req_data_len = rsp_data_len = bsg_job->request_payload.payload_len; | |
2695 | cmd_pkt->wr_byte_count = cpu_to_le32(req_data_len); | |
2696 | cmd_pkt->rd_byte_count = cpu_to_le32(rsp_data_len); | |
2697 | cmd_pkt->timeout = cpu_to_le16(qla2x00_get_async_timeout(vha) + 2); | |
2698 | ||
2699 | vha->bidi_stats.transfer_bytes += req_data_len; | |
2700 | vha->bidi_stats.io_count++; | |
2701 | ||
fabbb8df JC |
2702 | vha->qla_stats.output_bytes += req_data_len; |
2703 | vha->qla_stats.output_requests++; | |
2704 | ||
a9b6f722 SK |
2705 | /* Only one dsd is available for bidirectional IOCB, remaining dsds |
2706 | * are bundled in continuation iocb | |
2707 | */ | |
2708 | avail_dsds = 1; | |
2709 | cur_dsd = (uint32_t *)&cmd_pkt->fcp_data_dseg_address; | |
2710 | ||
2711 | index = 0; | |
2712 | ||
2713 | for_each_sg(bsg_job->request_payload.sg_list, sg, | |
2714 | bsg_job->request_payload.sg_cnt, index) { | |
2715 | dma_addr_t sle_dma; | |
2716 | cont_a64_entry_t *cont_pkt; | |
2717 | ||
2718 | /* Allocate additional continuation packets */ | |
2719 | if (avail_dsds == 0) { | |
2720 | /* Continuation type 1 IOCB can accomodate | |
2721 | * 5 DSDS | |
2722 | */ | |
2723 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); | |
2724 | cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; | |
2725 | avail_dsds = 5; | |
2726 | entry_count++; | |
2727 | } | |
2728 | sle_dma = sg_dma_address(sg); | |
2729 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
2730 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
2731 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
2732 | avail_dsds--; | |
2733 | } | |
2734 | /* For read request DSD will always goes to continuation IOCB | |
2735 | * and follow the write DSD. If there is room on the current IOCB | |
2736 | * then it is added to that IOCB else new continuation IOCB is | |
2737 | * allocated. | |
2738 | */ | |
2739 | for_each_sg(bsg_job->reply_payload.sg_list, sg, | |
2740 | bsg_job->reply_payload.sg_cnt, index) { | |
2741 | dma_addr_t sle_dma; | |
2742 | cont_a64_entry_t *cont_pkt; | |
2743 | ||
2744 | /* Allocate additional continuation packets */ | |
2745 | if (avail_dsds == 0) { | |
2746 | /* Continuation type 1 IOCB can accomodate | |
2747 | * 5 DSDS | |
2748 | */ | |
2749 | cont_pkt = qla2x00_prep_cont_type1_iocb(vha, vha->req); | |
2750 | cur_dsd = (uint32_t *) cont_pkt->dseg_0_address; | |
2751 | avail_dsds = 5; | |
2752 | entry_count++; | |
2753 | } | |
2754 | sle_dma = sg_dma_address(sg); | |
2755 | *cur_dsd++ = cpu_to_le32(LSD(sle_dma)); | |
2756 | *cur_dsd++ = cpu_to_le32(MSD(sle_dma)); | |
2757 | *cur_dsd++ = cpu_to_le32(sg_dma_len(sg)); | |
2758 | avail_dsds--; | |
2759 | } | |
2760 | /* This value should be same as number of IOCB required for this cmd */ | |
2761 | cmd_pkt->entry_count = entry_count; | |
2762 | } | |
2763 | ||
2764 | int | |
2765 | qla2x00_start_bidir(srb_t *sp, struct scsi_qla_host *vha, uint32_t tot_dsds) | |
2766 | { | |
2767 | ||
2768 | struct qla_hw_data *ha = vha->hw; | |
2769 | unsigned long flags; | |
2770 | uint32_t handle; | |
2771 | uint32_t index; | |
2772 | uint16_t req_cnt; | |
2773 | uint16_t cnt; | |
2774 | uint32_t *clr_ptr; | |
2775 | struct cmd_bidir *cmd_pkt = NULL; | |
2776 | struct rsp_que *rsp; | |
2777 | struct req_que *req; | |
2778 | int rval = EXT_STATUS_OK; | |
a9b6f722 SK |
2779 | |
2780 | rval = QLA_SUCCESS; | |
2781 | ||
2782 | rsp = ha->rsp_q_map[0]; | |
2783 | req = vha->req; | |
2784 | ||
2785 | /* Send marker if required */ | |
2786 | if (vha->marker_needed != 0) { | |
2787 | if (qla2x00_marker(vha, req, | |
2788 | rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) | |
2789 | return EXT_STATUS_MAILBOX; | |
2790 | vha->marker_needed = 0; | |
2791 | } | |
2792 | ||
2793 | /* Acquire ring specific lock */ | |
2794 | spin_lock_irqsave(&ha->hardware_lock, flags); | |
2795 | ||
2796 | /* Check for room in outstanding command list. */ | |
2797 | handle = req->current_outstanding_cmd; | |
8d93f550 | 2798 | for (index = 1; index < req->num_outstanding_cmds; index++) { |
a9b6f722 | 2799 | handle++; |
8d93f550 | 2800 | if (handle == req->num_outstanding_cmds) |
a9b6f722 SK |
2801 | handle = 1; |
2802 | if (!req->outstanding_cmds[handle]) | |
2803 | break; | |
2804 | } | |
2805 | ||
8d93f550 | 2806 | if (index == req->num_outstanding_cmds) { |
a9b6f722 SK |
2807 | rval = EXT_STATUS_BUSY; |
2808 | goto queuing_error; | |
2809 | } | |
2810 | ||
2811 | /* Calculate number of IOCB required */ | |
2812 | req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); | |
2813 | ||
2814 | /* Check for room on request queue. */ | |
2815 | if (req->cnt < req_cnt + 2) { | |
7c6300e3 JC |
2816 | cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : |
2817 | RD_REG_DWORD_RELAXED(req->req_q_out); | |
a9b6f722 SK |
2818 | if (req->ring_index < cnt) |
2819 | req->cnt = cnt - req->ring_index; | |
2820 | else | |
2821 | req->cnt = req->length - | |
2822 | (req->ring_index - cnt); | |
2823 | } | |
2824 | if (req->cnt < req_cnt + 2) { | |
2825 | rval = EXT_STATUS_BUSY; | |
2826 | goto queuing_error; | |
2827 | } | |
2828 | ||
2829 | cmd_pkt = (struct cmd_bidir *)req->ring_ptr; | |
2830 | cmd_pkt->handle = MAKE_HANDLE(req->id, handle); | |
2831 | ||
2832 | /* Zero out remaining portion of packet. */ | |
2833 | /* tagged queuing modifier -- default is TSK_SIMPLE (0).*/ | |
2834 | clr_ptr = (uint32_t *)cmd_pkt + 2; | |
2835 | memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8); | |
2836 | ||
2837 | /* Set NPORT-ID (of vha)*/ | |
2838 | cmd_pkt->nport_handle = cpu_to_le16(vha->self_login_loop_id); | |
2839 | cmd_pkt->port_id[0] = vha->d_id.b.al_pa; | |
2840 | cmd_pkt->port_id[1] = vha->d_id.b.area; | |
2841 | cmd_pkt->port_id[2] = vha->d_id.b.domain; | |
2842 | ||
2843 | qla25xx_build_bidir_iocb(sp, vha, cmd_pkt, tot_dsds); | |
2844 | cmd_pkt->entry_status = (uint8_t) rsp->id; | |
2845 | /* Build command packet. */ | |
2846 | req->current_outstanding_cmd = handle; | |
2847 | req->outstanding_cmds[handle] = sp; | |
2848 | sp->handle = handle; | |
2849 | req->cnt -= req_cnt; | |
2850 | ||
2851 | /* Send the command to the firmware */ | |
2852 | wmb(); | |
2853 | qla2x00_start_iocbs(vha, req); | |
2854 | queuing_error: | |
2855 | spin_unlock_irqrestore(&ha->hardware_lock, flags); | |
2856 | return rval; | |
2857 | } |