1/*
2 * Copyright (c) 2015, AVAGO Tech. All rights reserved. Author: Marian Choy
3 * Copyright (c) 2014, LSI Corp. All rights reserved. Author: Marian Choy
4 * Support: freebsdraid@avagotech.com
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met:
9 *
10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 2. Redistributions
12 * in binary form must reproduce the above copyright notice, this list of
13 * conditions and the following disclaimer in the documentation and/or other
14 * materials provided with the distribution. 3. Neither the name of the
15 * <ORGANIZATION> nor the names of its contributors may be used to endorse or
16 * promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 *
31 */
32
33#include <sys/cdefs.h>
34__FBSDID("$FreeBSD: head/sys/dev/mrsas/mrsas_cam.c 282533 2015-05-06 10:46:28Z kadesai $");
35
36#include "dev/mrsas/mrsas.h"
37
38#include <cam/cam.h>
39#include <cam/cam_ccb.h>
40#include <cam/cam_sim.h>
41#include <cam/cam_xpt_sim.h>
42#include <cam/cam_debug.h>
43#include <cam/cam_periph.h>
44#include <cam/cam_xpt_periph.h>
45
46#include <cam/scsi/scsi_all.h>
47#include <cam/scsi/scsi_message.h>
48#include <sys/taskqueue.h>
49#include <sys/kernel.h>
50
51
52#include <sys/time.h> /* XXX for pcpu.h */
53#include <sys/pcpu.h> /* XXX for PCPU_GET */
54
55#define smp_processor_id() PCPU_GET(cpuid)
56
57/*
58 * Function prototypes
59 */
60int mrsas_cam_attach(struct mrsas_softc *sc);
61int mrsas_find_io_type(struct cam_sim *sim, union ccb *ccb);
62int mrsas_bus_scan(struct mrsas_softc *sc);
63int mrsas_bus_scan_sim(struct mrsas_softc *sc, struct cam_sim *sim);
64int
65mrsas_map_request(struct mrsas_softc *sc,
66 struct mrsas_mpt_cmd *cmd, union ccb *ccb);
67int
68mrsas_build_ldio(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
69 union ccb *ccb);
70int
71mrsas_build_dcdb(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
72 union ccb *ccb, struct cam_sim *sim);
73int
74mrsas_setup_io(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
75 union ccb *ccb, u_int32_t device_id,
76 MRSAS_RAID_SCSI_IO_REQUEST * io_request);
77void mrsas_xpt_freeze(struct mrsas_softc *sc);
78void mrsas_xpt_release(struct mrsas_softc *sc);
79void mrsas_cam_detach(struct mrsas_softc *sc);
80void mrsas_release_mpt_cmd(struct mrsas_mpt_cmd *cmd);
81void mrsas_unmap_request(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd);
82void mrsas_cmd_done(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd);
83void
84mrsas_fire_cmd(struct mrsas_softc *sc, u_int32_t req_desc_lo,
85 u_int32_t req_desc_hi);
86void
87mrsas_set_pd_lba(MRSAS_RAID_SCSI_IO_REQUEST * io_request,
88 u_int8_t cdb_len, struct IO_REQUEST_INFO *io_info, union ccb *ccb,
89 MR_DRV_RAID_MAP_ALL * local_map_ptr, u_int32_t ref_tag,
90 u_int32_t ld_block_size);
91static void mrsas_freeze_simq(struct mrsas_mpt_cmd *cmd, struct cam_sim *sim);
92static void mrsas_cam_poll(struct cam_sim *sim);
93static void mrsas_action(struct cam_sim *sim, union ccb *ccb);
94static void mrsas_scsiio_timeout(void *data);
95static void
96mrsas_data_load_cb(void *arg, bus_dma_segment_t *segs,
97 int nseg, int error);
98static int32_t
99mrsas_startio(struct mrsas_softc *sc, struct cam_sim *sim,
100 union ccb *ccb);
101struct mrsas_mpt_cmd *mrsas_get_mpt_cmd(struct mrsas_softc *sc);
102MRSAS_REQUEST_DESCRIPTOR_UNION *
103 mrsas_get_request_desc(struct mrsas_softc *sc, u_int16_t index);
104
105extern u_int16_t MR_TargetIdToLdGet(u_int32_t ldTgtId, MR_DRV_RAID_MAP_ALL * map);
106extern u_int32_t
107MR_LdBlockSizeGet(u_int32_t ldTgtId, MR_DRV_RAID_MAP_ALL * map,
108 struct mrsas_softc *sc);
109extern void mrsas_isr(void *arg);
110extern void mrsas_aen_handler(struct mrsas_softc *sc);
111extern u_int8_t
112MR_BuildRaidContext(struct mrsas_softc *sc,
113 struct IO_REQUEST_INFO *io_info, RAID_CONTEXT * pRAID_Context,
114 MR_DRV_RAID_MAP_ALL * map);
115extern u_int16_t
116MR_LdSpanArrayGet(u_int32_t ld, u_int32_t span,
117 MR_DRV_RAID_MAP_ALL * map);
118extern u_int16_t
119mrsas_get_updated_dev_handle(struct mrsas_softc *sc,
120 PLD_LOAD_BALANCE_INFO lbInfo, struct IO_REQUEST_INFO *io_info);
121extern u_int8_t
122megasas_get_best_arm(PLD_LOAD_BALANCE_INFO lbInfo, u_int8_t arm,
123 u_int64_t block, u_int32_t count);
124
125
126/*
127 * mrsas_cam_attach: Main entry to CAM subsystem
128 * input: Adapter instance soft state
129 *
130 * This function is called from mrsas_attach() during initialization to perform
131 * SIM allocations and XPT bus registration. If the kernel version is 7.4 or
132 * earlier, it would also initiate a bus scan.
133 */
134int
135mrsas_cam_attach(struct mrsas_softc *sc)
136{
137 struct cam_devq *devq;
138 int mrsas_cam_depth;
139
140 mrsas_cam_depth = sc->max_fw_cmds - MRSAS_INTERNAL_CMDS;
141
142 if ((devq = cam_simq_alloc(mrsas_cam_depth)) == NULL) {
143 device_printf(sc->mrsas_dev, "Cannot allocate SIM queue\n");
144 return (ENOMEM);
145 }
146 /*
147 * Create SIM for bus 0 and register, also create path
148 */
149 sc->sim_0 = cam_sim_alloc(mrsas_action, mrsas_cam_poll, "mrsas", sc,
150 device_get_unit(sc->mrsas_dev), &sc->sim_lock, mrsas_cam_depth,
151 mrsas_cam_depth, devq);
152 if (sc->sim_0 == NULL) {
153 cam_simq_free(devq);
154 device_printf(sc->mrsas_dev, "Cannot register SIM\n");
155 return (ENXIO);
156 }
157 /* Initialize taskqueue for Event Handling */
158 TASK_INIT(&sc->ev_task, 0, (void *)mrsas_aen_handler, sc);
159 sc->ev_tq = taskqueue_create("mrsas_taskq", M_NOWAIT | M_ZERO,
160 taskqueue_thread_enqueue, &sc->ev_tq);
161
162 /* Run the task queue with lowest priority */
163 taskqueue_start_threads(&sc->ev_tq, 1, 255, "%s taskq",
164 device_get_nameunit(sc->mrsas_dev));
165 mtx_lock(&sc->sim_lock);
166 if (xpt_bus_register(sc->sim_0, sc->mrsas_dev, 0) != CAM_SUCCESS) {
167 cam_sim_free(sc->sim_0, TRUE); /* passing true frees the devq */
168 mtx_unlock(&sc->sim_lock);
169 return (ENXIO);
170 }
171 if (xpt_create_path(&sc->path_0, NULL, cam_sim_path(sc->sim_0),
172 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
173 xpt_bus_deregister(cam_sim_path(sc->sim_0));
174 cam_sim_free(sc->sim_0, TRUE); /* passing true will free the
175 * devq */
176 mtx_unlock(&sc->sim_lock);
177 return (ENXIO);
178 }
179 mtx_unlock(&sc->sim_lock);
180
181 /*
182 * Create SIM for bus 1 and register, also create path
183 */
184 sc->sim_1 = cam_sim_alloc(mrsas_action, mrsas_cam_poll, "mrsas", sc,
185 device_get_unit(sc->mrsas_dev), &sc->sim_lock, mrsas_cam_depth,
186 mrsas_cam_depth, devq);
187 if (sc->sim_1 == NULL) {
188 cam_simq_free(devq);
189 device_printf(sc->mrsas_dev, "Cannot register SIM\n");
190 return (ENXIO);
191 }
192 mtx_lock(&sc->sim_lock);
193 if (xpt_bus_register(sc->sim_1, sc->mrsas_dev, 1) != CAM_SUCCESS) {
194 cam_sim_free(sc->sim_1, TRUE); /* passing true frees the devq */
195 mtx_unlock(&sc->sim_lock);
196 return (ENXIO);
197 }
198 if (xpt_create_path(&sc->path_1, NULL, cam_sim_path(sc->sim_1),
199 CAM_TARGET_WILDCARD,
200 CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
201 xpt_bus_deregister(cam_sim_path(sc->sim_1));
202 cam_sim_free(sc->sim_1, TRUE);
203 mtx_unlock(&sc->sim_lock);
204 return (ENXIO);
205 }
206 mtx_unlock(&sc->sim_lock);
207
208#if (__FreeBSD_version <= 704000)
209 if (mrsas_bus_scan(sc)) {
210 device_printf(sc->mrsas_dev, "Error in bus scan.\n");
211 return (1);
212 }
213#endif
214 return (0);
215}
216
217/*
218 * mrsas_cam_detach: De-allocates and teardown CAM
219 * input: Adapter instance soft state
220 *
221 * De-registers and frees the paths and SIMs.
222 */
223void
224mrsas_cam_detach(struct mrsas_softc *sc)
225{
226 if (sc->ev_tq != NULL)
227 taskqueue_free(sc->ev_tq);
228 mtx_lock(&sc->sim_lock);
229 if (sc->path_0)
230 xpt_free_path(sc->path_0);
231 if (sc->sim_0) {
232 xpt_bus_deregister(cam_sim_path(sc->sim_0));
233 cam_sim_free(sc->sim_0, FALSE);
234 }
235 if (sc->path_1)
236 xpt_free_path(sc->path_1);
237 if (sc->sim_1) {
238 xpt_bus_deregister(cam_sim_path(sc->sim_1));
239 cam_sim_free(sc->sim_1, TRUE);
240 }
241 mtx_unlock(&sc->sim_lock);
242}
243
244/*
245 * mrsas_action: SIM callback entry point
246 * input: pointer to SIM pointer to CAM Control Block
247 *
248 * This function processes CAM subsystem requests. The type of request is stored
249 * in ccb->ccb_h.func_code. The preprocessor #ifdef is necessary because
250 * ccb->cpi.maxio is not supported for FreeBSD version 7.4 or earlier.
251 */
252static void
253mrsas_action(struct cam_sim *sim, union ccb *ccb)
254{
255 struct mrsas_softc *sc = (struct mrsas_softc *)cam_sim_softc(sim);
256 struct ccb_hdr *ccb_h = &(ccb->ccb_h);
257 u_int32_t device_id;
258
259 switch (ccb->ccb_h.func_code) {
260 case XPT_SCSI_IO:
261 {
262 device_id = ccb_h->target_id;
263
264 /*
265 * bus 0 is LD, bus 1 is for system-PD
266 */
267 if (cam_sim_bus(sim) == 1 &&
268 sc->pd_list[device_id].driveState != MR_PD_STATE_SYSTEM) {
269 ccb->ccb_h.status |= CAM_DEV_NOT_THERE;
270 xpt_done(ccb);
271 } else {
272 if (mrsas_startio(sc, sim, ccb)) {
273 ccb->ccb_h.status |= CAM_REQ_INVALID;
274 xpt_done(ccb);
275 }
276 }
277 break;
278 }
279 case XPT_ABORT:
280 {
281 ccb->ccb_h.status = CAM_UA_ABORT;
282 xpt_done(ccb);
283 break;
284 }
285 case XPT_RESET_BUS:
286 {
287 xpt_done(ccb);
288 break;
289 }
290 case XPT_GET_TRAN_SETTINGS:
291 {
292 ccb->cts.protocol = PROTO_SCSI;
293 ccb->cts.protocol_version = SCSI_REV_2;
294 ccb->cts.transport = XPORT_SPI;
295 ccb->cts.transport_version = 2;
296 ccb->cts.xport_specific.spi.valid = CTS_SPI_VALID_DISC;
297 ccb->cts.xport_specific.spi.flags = CTS_SPI_FLAGS_DISC_ENB;
298 ccb->cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ;
299 ccb->cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB;
300 ccb->ccb_h.status = CAM_REQ_CMP;
301 xpt_done(ccb);
302 break;
303 }
304 case XPT_SET_TRAN_SETTINGS:
305 {
306 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
307 xpt_done(ccb);
308 break;
309 }
310 case XPT_CALC_GEOMETRY:
311 {
312 cam_calc_geometry(&ccb->ccg, 1);
313 xpt_done(ccb);
314 break;
315 }
316 case XPT_PATH_INQ:
317 {
318 ccb->cpi.version_num = 1;
319 ccb->cpi.hba_inquiry = 0;
320 ccb->cpi.target_sprt = 0;
321#if (__FreeBSD_version >= 902001)
322 ccb->cpi.hba_misc = PIM_UNMAPPED;
323#else
324 ccb->cpi.hba_misc = 0;
325#endif
326 ccb->cpi.hba_eng_cnt = 0;
327 ccb->cpi.max_lun = MRSAS_SCSI_MAX_LUNS;
328 ccb->cpi.unit_number = cam_sim_unit(sim);
329 ccb->cpi.bus_id = cam_sim_bus(sim);
330 ccb->cpi.initiator_id = MRSAS_SCSI_INITIATOR_ID;
331 ccb->cpi.base_transfer_speed = 150000;
332 strncpy(ccb->cpi.sim_vid, "FreeBSD", SIM_IDLEN);
333 strncpy(ccb->cpi.hba_vid, "AVAGO", HBA_IDLEN);
334 strncpy(ccb->cpi.dev_name, cam_sim_name(sim), DEV_IDLEN);
335 ccb->cpi.transport = XPORT_SPI;
336 ccb->cpi.transport_version = 2;
337 ccb->cpi.protocol = PROTO_SCSI;
338 ccb->cpi.protocol_version = SCSI_REV_2;
339 if (ccb->cpi.bus_id == 0)
340 ccb->cpi.max_target = MRSAS_MAX_PD - 1;
341 else
342 ccb->cpi.max_target = MRSAS_MAX_LD_IDS - 1;
343#if (__FreeBSD_version > 704000)
344 ccb->cpi.maxio = MRSAS_MAX_IO_SIZE;
345#endif
346 ccb->ccb_h.status = CAM_REQ_CMP;
347 xpt_done(ccb);
348 break;
349 }
350 default:
351 {
352 ccb->ccb_h.status = CAM_REQ_INVALID;
353 xpt_done(ccb);
354 break;
355 }
356 }
357}
358
359/*
360 * mrsas_scsiio_timeout: Callback function for IO timed out
361 * input: mpt command context
362 *
363 * This function will execute after timeout value provided by ccb header from
364 * CAM layer, if timer expires. Driver will run timer for all DCDM and LDIO
365 * comming from CAM layer. This function is callback function for IO timeout
366 * and it runs in no-sleep context. Set do_timedout_reset in Adapter context
367 * so that it will execute OCR/Kill adpter from ocr_thread context.
368 */
369static void
370mrsas_scsiio_timeout(void *data)
371{
372 struct mrsas_mpt_cmd *cmd;
373 struct mrsas_softc *sc;
374
375 cmd = (struct mrsas_mpt_cmd *)data;
376 sc = cmd->sc;
377
378 if (cmd->ccb_ptr == NULL) {
379 printf("command timeout with NULL ccb\n");
380 return;
381 }
382 /*
383 * Below callout is dummy entry so that it will be cancelled from
384 * mrsas_cmd_done(). Now Controller will go to OCR/Kill Adapter based
385 * on OCR enable/disable property of Controller from ocr_thread
386 * context.
387 */
388#if (__FreeBSD_version >= 1000510)
389 callout_reset_sbt(&cmd->cm_callout, SBT_1S * 600, 0,
390 mrsas_scsiio_timeout, cmd, 0);
391#else
392 callout_reset(&cmd->cm_callout, (600000 * hz) / 1000,
393 mrsas_scsiio_timeout, cmd);
394#endif
395 sc->do_timedout_reset = 1;
396 if (sc->ocr_thread_active)
397 wakeup(&sc->ocr_chan);
398}
399
400/*
401 * mrsas_startio: SCSI IO entry point
402 * input: Adapter instance soft state
403 * pointer to CAM Control Block
404 *
405 * This function is the SCSI IO entry point and it initiates IO processing. It
406 * copies the IO and depending if the IO is read/write or inquiry, it would
407 * call mrsas_build_ldio() or mrsas_build_dcdb(), respectively. It returns 0
408 * if the command is sent to firmware successfully, otherwise it returns 1.
409 */
410static int32_t
411mrsas_startio(struct mrsas_softc *sc, struct cam_sim *sim,
412 union ccb *ccb)
413{
414 struct mrsas_mpt_cmd *cmd;
415 struct ccb_hdr *ccb_h = &(ccb->ccb_h);
416 struct ccb_scsiio *csio = &(ccb->csio);
417 MRSAS_REQUEST_DESCRIPTOR_UNION *req_desc;
418
419 if ((csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) {
420 ccb->ccb_h.status = CAM_REQ_CMP;
421 xpt_done(ccb);
422 return (0);
423 }
424 ccb_h->status |= CAM_SIM_QUEUED;
425 cmd = mrsas_get_mpt_cmd(sc);
426
427 if (!cmd) {
428 ccb_h->status |= CAM_REQUEUE_REQ;
429 xpt_done(ccb);
430 return (0);
431 }
432 if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
433 if (ccb_h->flags & CAM_DIR_IN)
434 cmd->flags |= MRSAS_DIR_IN;
435 if (ccb_h->flags & CAM_DIR_OUT)
436 cmd->flags |= MRSAS_DIR_OUT;
437 } else
438 cmd->flags = MRSAS_DIR_NONE; /* no data */
439
440/* For FreeBSD 9.2 and higher */
441#if (__FreeBSD_version >= 902001)
442 /*
443 * XXX We don't yet support physical addresses here.
444 */
445 switch ((ccb->ccb_h.flags & CAM_DATA_MASK)) {
446 case CAM_DATA_PADDR:
447 case CAM_DATA_SG_PADDR:
448 device_printf(sc->mrsas_dev, "%s: physical addresses not supported\n",
449 __func__);
450 mrsas_release_mpt_cmd(cmd);
451 ccb_h->status = CAM_REQ_INVALID;
452 ccb_h->status &= ~CAM_SIM_QUEUED;
453 goto done;
454 case CAM_DATA_SG:
455 device_printf(sc->mrsas_dev, "%s: scatter gather is not supported\n",
456 __func__);
457 mrsas_release_mpt_cmd(cmd);
458 ccb_h->status = CAM_REQ_INVALID;
459 goto done;
460 case CAM_DATA_VADDR:
461 if (csio->dxfer_len > MRSAS_MAX_IO_SIZE) {
462 mrsas_release_mpt_cmd(cmd);
463 ccb_h->status = CAM_REQ_TOO_BIG;
464 goto done;
465 }
466 cmd->length = csio->dxfer_len;
467 if (cmd->length)
468 cmd->data = csio->data_ptr;
469 break;
470 case CAM_DATA_BIO:
471 cmd->length = csio->dxfer_len;
472 if (cmd->length)
473 cmd->data = csio->data_ptr;
474 break;
475 default:
476 ccb->ccb_h.status = CAM_REQ_INVALID;
477 goto done;
478 }
479#else
480 if (!(ccb_h->flags & CAM_DATA_PHYS)) { /* Virtual data address */
481 if (!(ccb_h->flags & CAM_SCATTER_VALID)) {
482 if (csio->dxfer_len > MRSAS_MAX_IO_SIZE) {
483 mrsas_release_mpt_cmd(cmd);
484 ccb_h->status = CAM_REQ_TOO_BIG;
485 goto done;
486 }
487 cmd->length = csio->dxfer_len;
488 if (cmd->length)
489 cmd->data = csio->data_ptr;
490 } else {
491 mrsas_release_mpt_cmd(cmd);
492 ccb_h->status = CAM_REQ_INVALID;
493 goto done;
494 }
495 } else { /* Data addresses are physical. */
496 mrsas_release_mpt_cmd(cmd);
497 ccb_h->status = CAM_REQ_INVALID;
498 ccb_h->status &= ~CAM_SIM_QUEUED;
499 goto done;
500 }
501#endif
502 /* save ccb ptr */
503 cmd->ccb_ptr = ccb;
504
505 req_desc = mrsas_get_request_desc(sc, (cmd->index) - 1);
506 if (!req_desc) {
507 device_printf(sc->mrsas_dev, "Cannot get request_descriptor.\n");
508 return (FAIL);
509 }
510 memset(req_desc, 0, sizeof(MRSAS_REQUEST_DESCRIPTOR_UNION));
511 cmd->request_desc = req_desc;
512
513 if (ccb_h->flags & CAM_CDB_POINTER)
514 bcopy(csio->cdb_io.cdb_ptr, cmd->io_request->CDB.CDB32, csio->cdb_len);
515 else
516 bcopy(csio->cdb_io.cdb_bytes, cmd->io_request->CDB.CDB32, csio->cdb_len);
517 mtx_lock(&sc->raidmap_lock);
518
519 /* Check for IO type READ-WRITE targeted for Logical Volume */
520 if (mrsas_find_io_type(sim, ccb) == READ_WRITE_LDIO) {
521 /* Build READ-WRITE IO for Logical Volume */
522 if (mrsas_build_ldio(sc, cmd, ccb)) {
523 device_printf(sc->mrsas_dev, "Build LDIO failed.\n");
524 mtx_unlock(&sc->raidmap_lock);
525 return (1);
526 }
527 } else {
528 if (mrsas_build_dcdb(sc, cmd, ccb, sim)) {
529 device_printf(sc->mrsas_dev, "Build DCDB failed.\n");
530 mtx_unlock(&sc->raidmap_lock);
531 return (1);
532 }
533 }
534 mtx_unlock(&sc->raidmap_lock);
535
536 if (cmd->flags == MRSAS_DIR_IN) /* from device */
537 cmd->io_request->Control |= MPI2_SCSIIO_CONTROL_READ;
538 else if (cmd->flags == MRSAS_DIR_OUT) /* to device */
539 cmd->io_request->Control |= MPI2_SCSIIO_CONTROL_WRITE;
540
541 cmd->io_request->SGLFlags = MPI2_SGE_FLAGS_64_BIT_ADDRESSING;
542 cmd->io_request->SGLOffset0 = offsetof(MRSAS_RAID_SCSI_IO_REQUEST, SGL) / 4;
543 cmd->io_request->SenseBufferLowAddress = cmd->sense_phys_addr;
544 cmd->io_request->SenseBufferLength = MRSAS_SCSI_SENSE_BUFFERSIZE;
545
546 req_desc = cmd->request_desc;
547 req_desc->SCSIIO.SMID = cmd->index;
548
549 /*
550 * Start timer for IO timeout. Default timeout value is 90 second.
551 */
552#if (__FreeBSD_version >= 1000510)
553 callout_reset_sbt(&cmd->cm_callout, SBT_1S * 600, 0,
554 mrsas_scsiio_timeout, cmd, 0);
555#else
556 callout_reset(&cmd->cm_callout, (600000 * hz) / 1000,
557 mrsas_scsiio_timeout, cmd);
558#endif
559 mrsas_atomic_inc(&sc->fw_outstanding);
560
561 if (mrsas_atomic_read(&sc->fw_outstanding) > sc->io_cmds_highwater)
562 sc->io_cmds_highwater++;
563
564 mrsas_fire_cmd(sc, req_desc->addr.u.low, req_desc->addr.u.high);
565 return (0);
566
567done:
568 xpt_done(ccb);
569 return (0);
570}
571
572/*
573 * mrsas_find_io_type: Determines if IO is read/write or inquiry
574 * input: pointer to CAM Control Block
575 *
576 * This function determines if the IO is read/write or inquiry. It returns a 1
577 * if the IO is read/write and 0 if it is inquiry.
578 */
579int
580mrsas_find_io_type(struct cam_sim *sim, union ccb *ccb)
581{
582 struct ccb_scsiio *csio = &(ccb->csio);
583
584 switch (csio->cdb_io.cdb_bytes[0]) {
585 case READ_10:
586 case WRITE_10:
587 case READ_12:
588 case WRITE_12:
589 case READ_6:
590 case WRITE_6:
591 case READ_16:
592 case WRITE_16:
593 return (cam_sim_bus(sim) ?
594 READ_WRITE_SYSPDIO : READ_WRITE_LDIO);
595 default:
596 return (cam_sim_bus(sim) ?
597 NON_READ_WRITE_SYSPDIO : NON_READ_WRITE_LDIO);
598 }
599}
600
601/*
602 * mrsas_get_mpt_cmd: Get a cmd from free command pool
603 * input: Adapter instance soft state
604 *
605 * This function removes an MPT command from the command free list and
606 * initializes it.
607 */
608struct mrsas_mpt_cmd *
609mrsas_get_mpt_cmd(struct mrsas_softc *sc)
610{
611 struct mrsas_mpt_cmd *cmd = NULL;
612
613 mtx_lock(&sc->mpt_cmd_pool_lock);
614 if (!TAILQ_EMPTY(&sc->mrsas_mpt_cmd_list_head)) {
615 cmd = TAILQ_FIRST(&sc->mrsas_mpt_cmd_list_head);
616 TAILQ_REMOVE(&sc->mrsas_mpt_cmd_list_head, cmd, next);
617 }
618 memset((uint8_t *)cmd->io_request, 0, MRSAS_MPI2_RAID_DEFAULT_IO_FRAME_SIZE);
619 cmd->data = NULL;
620 cmd->length = 0;
621 cmd->flags = 0;
622 cmd->error_code = 0;
623 cmd->load_balance = 0;
624 cmd->ccb_ptr = NULL;
625 mtx_unlock(&sc->mpt_cmd_pool_lock);
626
627 return cmd;
628}
629
630/*
631 * mrsas_release_mpt_cmd: Return a cmd to free command pool
632 * input: Command packet for return to free command pool
633 *
634 * This function returns an MPT command to the free command list.
635 */
636void
637mrsas_release_mpt_cmd(struct mrsas_mpt_cmd *cmd)
638{
639 struct mrsas_softc *sc = cmd->sc;
640
641 mtx_lock(&sc->mpt_cmd_pool_lock);
642 cmd->sync_cmd_idx = (u_int32_t)MRSAS_ULONG_MAX;
643 TAILQ_INSERT_TAIL(&(sc->mrsas_mpt_cmd_list_head), cmd, next);
644 mtx_unlock(&sc->mpt_cmd_pool_lock);
645
646 return;
647}
648
649/*
650 * mrsas_get_request_desc: Get request descriptor from array
651 * input: Adapter instance soft state
652 * SMID index
653 *
654 * This function returns a pointer to the request descriptor.
655 */
656MRSAS_REQUEST_DESCRIPTOR_UNION *
657mrsas_get_request_desc(struct mrsas_softc *sc, u_int16_t index)
658{
659 u_int8_t *p;
660
661 if (index >= sc->max_fw_cmds) {
662 device_printf(sc->mrsas_dev, "Invalid SMID (0x%x)request for desc\n", index);
663 return NULL;
664 }
665 p = sc->req_desc + sizeof(MRSAS_REQUEST_DESCRIPTOR_UNION) * index;
666
667 return (MRSAS_REQUEST_DESCRIPTOR_UNION *) p;
668}
669
670/*
671 * mrsas_build_ldio: Builds an LDIO command
672 * input: Adapter instance soft state
673 * Pointer to command packet
674 * Pointer to CCB
675 *
676 * This function builds the LDIO command packet. It returns 0 if the command is
677 * built successfully, otherwise it returns a 1.
678 */
679int
680mrsas_build_ldio(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
681 union ccb *ccb)
682{
683 struct ccb_hdr *ccb_h = &(ccb->ccb_h);
684 struct ccb_scsiio *csio = &(ccb->csio);
685 u_int32_t device_id;
686 MRSAS_RAID_SCSI_IO_REQUEST *io_request;
687
688 device_id = ccb_h->target_id;
689
690 io_request = cmd->io_request;
691 io_request->RaidContext.VirtualDiskTgtId = device_id;
692 io_request->RaidContext.status = 0;
693 io_request->RaidContext.exStatus = 0;
694
695 /* just the cdb len, other flags zero, and ORed-in later for FP */
696 io_request->IoFlags = csio->cdb_len;
697
698 if (mrsas_setup_io(sc, cmd, ccb, device_id, io_request) != SUCCESS)
699 device_printf(sc->mrsas_dev, "Build ldio or fpio error\n");
700
701 io_request->DataLength = cmd->length;
702
703 if (mrsas_map_request(sc, cmd, ccb) == SUCCESS) {
704 if (cmd->sge_count > MRSAS_MAX_SGL) {
705 device_printf(sc->mrsas_dev, "Error: sge_count (0x%x) exceeds"
706 "max (0x%x) allowed\n", cmd->sge_count, sc->max_num_sge);
707 return (FAIL);
708 }
709 io_request->RaidContext.numSGE = cmd->sge_count;
710 } else {
711 device_printf(sc->mrsas_dev, "Data map/load failed.\n");
712 return (FAIL);
713 }
714 return (0);
715}
716
717/*
718 * mrsas_setup_io: Set up data including Fast Path I/O
719 * input: Adapter instance soft state
720 * Pointer to command packet
721 * Pointer to CCB
722 *
723 * This function builds the DCDB inquiry command. It returns 0 if the command
724 * is built successfully, otherwise it returns a 1.
725 */
726int
727mrsas_setup_io(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
728 union ccb *ccb, u_int32_t device_id,
729 MRSAS_RAID_SCSI_IO_REQUEST * io_request)
730{
731 struct ccb_hdr *ccb_h = &(ccb->ccb_h);
732 struct ccb_scsiio *csio = &(ccb->csio);
733 struct IO_REQUEST_INFO io_info;
734 MR_DRV_RAID_MAP_ALL *map_ptr;
735 u_int8_t fp_possible;
736 u_int32_t start_lba_hi, start_lba_lo, ld_block_size;
737 u_int32_t datalength = 0;
738
739 start_lba_lo = 0;
740 start_lba_hi = 0;
741 fp_possible = 0;
742
743 /*
744 * READ_6 (0x08) or WRITE_6 (0x0A) cdb
745 */
746 if (csio->cdb_len == 6) {
747 datalength = (u_int32_t)csio->cdb_io.cdb_bytes[4];
748 start_lba_lo = ((u_int32_t)csio->cdb_io.cdb_bytes[1] << 16) |
749 ((u_int32_t)csio->cdb_io.cdb_bytes[2] << 8) |
750 (u_int32_t)csio->cdb_io.cdb_bytes[3];
751 start_lba_lo &= 0x1FFFFF;
752 }
753 /*
754 * READ_10 (0x28) or WRITE_6 (0x2A) cdb
755 */
756 else if (csio->cdb_len == 10) {
757 datalength = (u_int32_t)csio->cdb_io.cdb_bytes[8] |
758 ((u_int32_t)csio->cdb_io.cdb_bytes[7] << 8);
759 start_lba_lo = ((u_int32_t)csio->cdb_io.cdb_bytes[2] << 24) |
760 ((u_int32_t)csio->cdb_io.cdb_bytes[3] << 16) |
761 (u_int32_t)csio->cdb_io.cdb_bytes[4] << 8 |
762 ((u_int32_t)csio->cdb_io.cdb_bytes[5]);
763 }
764 /*
765 * READ_12 (0xA8) or WRITE_12 (0xAA) cdb
766 */
767 else if (csio->cdb_len == 12) {
768 datalength = (u_int32_t)csio->cdb_io.cdb_bytes[6] << 24 |
769 ((u_int32_t)csio->cdb_io.cdb_bytes[7] << 16) |
770 ((u_int32_t)csio->cdb_io.cdb_bytes[8] << 8) |
771 ((u_int32_t)csio->cdb_io.cdb_bytes[9]);
772 start_lba_lo = ((u_int32_t)csio->cdb_io.cdb_bytes[2] << 24) |
773 ((u_int32_t)csio->cdb_io.cdb_bytes[3] << 16) |
774 (u_int32_t)csio->cdb_io.cdb_bytes[4] << 8 |
775 ((u_int32_t)csio->cdb_io.cdb_bytes[5]);
776 }
777 /*
778 * READ_16 (0x88) or WRITE_16 (0xx8A) cdb
779 */
780 else if (csio->cdb_len == 16) {
781 datalength = (u_int32_t)csio->cdb_io.cdb_bytes[10] << 24 |
782 ((u_int32_t)csio->cdb_io.cdb_bytes[11] << 16) |
783 ((u_int32_t)csio->cdb_io.cdb_bytes[12] << 8) |
784 ((u_int32_t)csio->cdb_io.cdb_bytes[13]);
785 start_lba_lo = ((u_int32_t)csio->cdb_io.cdb_bytes[6] << 24) |
786 ((u_int32_t)csio->cdb_io.cdb_bytes[7] << 16) |
787 (u_int32_t)csio->cdb_io.cdb_bytes[8] << 8 |
788 ((u_int32_t)csio->cdb_io.cdb_bytes[9]);
789 start_lba_hi = ((u_int32_t)csio->cdb_io.cdb_bytes[2] << 24) |
790 ((u_int32_t)csio->cdb_io.cdb_bytes[3] << 16) |
791 (u_int32_t)csio->cdb_io.cdb_bytes[4] << 8 |
792 ((u_int32_t)csio->cdb_io.cdb_bytes[5]);
793 }
794 memset(&io_info, 0, sizeof(struct IO_REQUEST_INFO));
795 io_info.ldStartBlock = ((u_int64_t)start_lba_hi << 32) | start_lba_lo;
796 io_info.numBlocks = datalength;
797 io_info.ldTgtId = device_id;
798
799 switch (ccb_h->flags & CAM_DIR_MASK) {
800 case CAM_DIR_IN:
801 io_info.isRead = 1;
802 break;
803 case CAM_DIR_OUT:
804 io_info.isRead = 0;
805 break;
806 case CAM_DIR_NONE:
807 default:
808 mrsas_dprint(sc, MRSAS_TRACE, "From %s : DMA Flag is %d \n", __func__, ccb_h->flags & CAM_DIR_MASK);
809 break;
810 }
811
812 map_ptr = sc->ld_drv_map[(sc->map_id & 1)];
813 ld_block_size = MR_LdBlockSizeGet(device_id, map_ptr, sc);
814
815 if ((MR_TargetIdToLdGet(device_id, map_ptr) >= MAX_LOGICAL_DRIVES_EXT) ||
816 (!sc->fast_path_io)) {
817 io_request->RaidContext.regLockFlags = 0;
818 fp_possible = 0;
819 } else {
820 if (MR_BuildRaidContext(sc, &io_info, &io_request->RaidContext, map_ptr))
821 fp_possible = io_info.fpOkForIo;
822 }
823
824 cmd->request_desc->SCSIIO.MSIxIndex =
825 sc->msix_vectors ? smp_processor_id() % sc->msix_vectors : 0;
826
827
828 if (fp_possible) {
829 mrsas_set_pd_lba(io_request, csio->cdb_len, &io_info, ccb, map_ptr,
830 start_lba_lo, ld_block_size);
831 io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
832 cmd->request_desc->SCSIIO.RequestFlags =
833 (MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY <<
834 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
835 if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY)) {
836 if (io_request->RaidContext.regLockFlags == REGION_TYPE_UNUSED)
837 cmd->request_desc->SCSIIO.RequestFlags =
838 (MRSAS_REQ_DESCRIPT_FLAGS_NO_LOCK <<
839 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
840 io_request->RaidContext.Type = MPI2_TYPE_CUDA;
841 io_request->RaidContext.nseg = 0x1;
842 io_request->IoFlags |= MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH;
843 io_request->RaidContext.regLockFlags |=
844 (MR_RL_FLAGS_GRANT_DESTINATION_CUDA |
845 MR_RL_FLAGS_SEQ_NUM_ENABLE);
846 }
847 if ((sc->load_balance_info[device_id].loadBalanceFlag) &&
848 (io_info.isRead)) {
849 io_info.devHandle =
850 mrsas_get_updated_dev_handle(sc,
851 &sc->load_balance_info[device_id], &io_info);
852 cmd->load_balance = MRSAS_LOAD_BALANCE_FLAG;
853 cmd->pd_r1_lb = io_info.pd_after_lb;
854 } else
855 cmd->load_balance = 0;
856 cmd->request_desc->SCSIIO.DevHandle = io_info.devHandle;
857 io_request->DevHandle = io_info.devHandle;
858 } else {
859 /* Not FP IO */
860 io_request->RaidContext.timeoutValue = map_ptr->raidMap.fpPdIoTimeoutSec;
861 cmd->request_desc->SCSIIO.RequestFlags =
862 (MRSAS_REQ_DESCRIPT_FLAGS_LD_IO <<
863 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
864 if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY)) {
865 if (io_request->RaidContext.regLockFlags == REGION_TYPE_UNUSED)
866 cmd->request_desc->SCSIIO.RequestFlags =
867 (MRSAS_REQ_DESCRIPT_FLAGS_NO_LOCK <<
868 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
869 io_request->RaidContext.Type = MPI2_TYPE_CUDA;
870 io_request->RaidContext.regLockFlags |=
871 (MR_RL_FLAGS_GRANT_DESTINATION_CPU0 |
872 MR_RL_FLAGS_SEQ_NUM_ENABLE);
873 io_request->RaidContext.nseg = 0x1;
874 }
875 io_request->Function = MRSAS_MPI2_FUNCTION_LD_IO_REQUEST;
876 io_request->DevHandle = device_id;
877 }
878 return (0);
879}
880
881/*
882 * mrsas_build_dcdb: Builds an DCDB command
883 * input: Adapter instance soft state
884 * Pointer to command packet
885 * Pointer to CCB
886 *
887 * This function builds the DCDB inquiry command. It returns 0 if the command
888 * is built successfully, otherwise it returns a 1.
889 */
890int
891mrsas_build_dcdb(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
892 union ccb *ccb, struct cam_sim *sim)
893{
894 struct ccb_hdr *ccb_h = &(ccb->ccb_h);
895 u_int32_t device_id;
896 MR_DRV_RAID_MAP_ALL *map_ptr;
897 MRSAS_RAID_SCSI_IO_REQUEST *io_request;
898
899 io_request = cmd->io_request;
900 device_id = ccb_h->target_id;
901 map_ptr = sc->ld_drv_map[(sc->map_id & 1)];
902
903 /*
904 * Check if this is RW for system PD or
905 * it's a NON RW for sys PD and there is NO secure jbod FW support
906 */
907 if (cam_sim_bus(sim) == 1 &&
908 sc->pd_list[device_id].driveState == MR_PD_STATE_SYSTEM) {
909
910 io_request->DevHandle =
911 map_ptr->raidMap.devHndlInfo[device_id].curDevHdl;
912 io_request->RaidContext.RAIDFlags =
913 MR_RAID_FLAGS_IO_SUB_TYPE_SYSTEM_PD <<
914 MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_SHIFT;
915 cmd->request_desc->SCSIIO.DevHandle = io_request->DevHandle;
916 cmd->request_desc->SCSIIO.MSIxIndex =
917 sc->msix_vectors ? smp_processor_id() % sc->msix_vectors : 0;
918
919 if (sc->secure_jbod_support && (mrsas_find_io_type(sim, ccb) == NON_READ_WRITE_SYSPDIO)) {
920 /* system pd firmware path */
921 io_request->Function = MRSAS_MPI2_FUNCTION_LD_IO_REQUEST;
922 cmd->request_desc->SCSIIO.RequestFlags =
923 (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO << MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
924 } else {
925 /* system pd fast path */
926 io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
927 io_request->RaidContext.timeoutValue = map_ptr->raidMap.fpPdIoTimeoutSec;
928 io_request->RaidContext.regLockFlags = 0;
929 io_request->RaidContext.regLockRowLBA = 0;
930 io_request->RaidContext.regLockLength = 0;
931
932 cmd->request_desc->SCSIIO.RequestFlags =
933 (MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY <<
934 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
935
936 /*
937 * NOTE - For system pd RW cmds only IoFlags will be FAST_PATH
938 * Because the NON RW cmds will now go via FW Queue
939 * and not the Exception queue
940 */
941 if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY))
942 io_request->IoFlags |= MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH;
943 }
944 } else {
945 /* FW path for SysPD or LD Non-RW (SCSI management commands) */
946 io_request->Function = MRSAS_MPI2_FUNCTION_LD_IO_REQUEST;
947 io_request->DevHandle = device_id;
948 cmd->request_desc->SCSIIO.RequestFlags =
949 (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO <<
950 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
951 }
952
953 io_request->RaidContext.VirtualDiskTgtId = device_id;
954 io_request->LUN[1] = ccb_h->target_lun & 0xF;
955 io_request->DataLength = cmd->length;
956
957 if (mrsas_map_request(sc, cmd, ccb) == SUCCESS) {
958 if (cmd->sge_count > sc->max_num_sge) {
959 device_printf(sc->mrsas_dev, "Error: sge_count (0x%x) exceeds"
960 "max (0x%x) allowed\n", cmd->sge_count, sc->max_num_sge);
961 return (1);
962 }
963 io_request->RaidContext.numSGE = cmd->sge_count;
964 } else {
965 device_printf(sc->mrsas_dev, "Data map/load failed.\n");
966 return (1);
967 }
968 return (0);
969}
970
971/*
972 * mrsas_map_request: Map and load data
973 * input: Adapter instance soft state
974 * Pointer to command packet
975 *
976 * For data from OS, map and load the data buffer into bus space. The SG list
977 * is built in the callback. If the bus dmamap load is not successful,
978 * cmd->error_code will contain the error code and a 1 is returned.
979 */
980int
981mrsas_map_request(struct mrsas_softc *sc,
982 struct mrsas_mpt_cmd *cmd, union ccb *ccb)
983{
984 u_int32_t retcode = 0;
985 struct cam_sim *sim;
986
987 sim = xpt_path_sim(cmd->ccb_ptr->ccb_h.path);
988
989 if (cmd->data != NULL) {
990 /* Map data buffer into bus space */
991 mtx_lock(&sc->io_lock);
992#if (__FreeBSD_version >= 902001)
993 retcode = bus_dmamap_load_ccb(sc->data_tag, cmd->data_dmamap, ccb,
994 mrsas_data_load_cb, cmd, 0);
995#else
996 retcode = bus_dmamap_load(sc->data_tag, cmd->data_dmamap, cmd->data,
997 cmd->length, mrsas_data_load_cb, cmd, BUS_DMA_NOWAIT);
998#endif
999 mtx_unlock(&sc->io_lock);
1000 if (retcode)
1001 device_printf(sc->mrsas_dev, "bus_dmamap_load(): retcode = %d\n", retcode);
1002 if (retcode == EINPROGRESS) {
1003 device_printf(sc->mrsas_dev, "request load in progress\n");
1004 mrsas_freeze_simq(cmd, sim);
1005 }
1006 }
1007 if (cmd->error_code)
1008 return (1);
1009 return (retcode);
1010}
1011
1012/*
1013 * mrsas_unmap_request: Unmap and unload data
1014 * input: Adapter instance soft state
1015 * Pointer to command packet
1016 *
1017 * This function unmaps and unloads data from OS.
1018 */
1019void
1020mrsas_unmap_request(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd)
1021{
1022 if (cmd->data != NULL) {
1023 if (cmd->flags & MRSAS_DIR_IN)
1024 bus_dmamap_sync(sc->data_tag, cmd->data_dmamap, BUS_DMASYNC_POSTREAD);
1025 if (cmd->flags & MRSAS_DIR_OUT)
1026 bus_dmamap_sync(sc->data_tag, cmd->data_dmamap, BUS_DMASYNC_POSTWRITE);
1027 mtx_lock(&sc->io_lock);
1028 bus_dmamap_unload(sc->data_tag, cmd->data_dmamap);
1029 mtx_unlock(&sc->io_lock);
1030 }
1031}
1032
1033/*
1034 * mrsas_data_load_cb: Callback entry point
1035 * input: Pointer to command packet as argument
1036 * Pointer to segment
1037 * Number of segments Error
1038 *
1039 * This is the callback function of the bus dma map load. It builds the SG
1040 * list.
1041 */
1042static void
1043mrsas_data_load_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1044{
1045 struct mrsas_mpt_cmd *cmd = (struct mrsas_mpt_cmd *)arg;
1046 struct mrsas_softc *sc = cmd->sc;
1047 MRSAS_RAID_SCSI_IO_REQUEST *io_request;
1048 pMpi25IeeeSgeChain64_t sgl_ptr;
1049 int i = 0, sg_processed = 0;
1050
1051 if (error) {
1052 cmd->error_code = error;
1053 device_printf(sc->mrsas_dev, "mrsas_data_load_cb: error=%d\n", error);
1054 if (error == EFBIG) {
1055 cmd->ccb_ptr->ccb_h.status = CAM_REQ_TOO_BIG;
1056 return;
1057 }
1058 }
1059 if (cmd->flags & MRSAS_DIR_IN)
1060 bus_dmamap_sync(cmd->sc->data_tag, cmd->data_dmamap,
1061 BUS_DMASYNC_PREREAD);
1062 if (cmd->flags & MRSAS_DIR_OUT)
1063 bus_dmamap_sync(cmd->sc->data_tag, cmd->data_dmamap,
1064 BUS_DMASYNC_PREWRITE);
1065 if (nseg > sc->max_num_sge) {
1066 device_printf(sc->mrsas_dev, "SGE count is too large or 0.\n");
1067 return;
1068 }
1069 io_request = cmd->io_request;
1070 sgl_ptr = (pMpi25IeeeSgeChain64_t)&io_request->SGL;
1071
1072 if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY)) {
1073 pMpi25IeeeSgeChain64_t sgl_ptr_end = sgl_ptr;
1074
1075 sgl_ptr_end += sc->max_sge_in_main_msg - 1;
1076 sgl_ptr_end->Flags = 0;
1077 }
1078 if (nseg != 0) {
1079 for (i = 0; i < nseg; i++) {
1080 sgl_ptr->Address = segs[i].ds_addr;
1081 sgl_ptr->Length = segs[i].ds_len;
1082 sgl_ptr->Flags = 0;
1083 if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY)) {
1084 if (i == nseg - 1)
1085 sgl_ptr->Flags = IEEE_SGE_FLAGS_END_OF_LIST;
1086 }
1087 sgl_ptr++;
1088 sg_processed = i + 1;
1089 if ((sg_processed == (sc->max_sge_in_main_msg - 1)) &&
1090 (nseg > sc->max_sge_in_main_msg)) {
1091 pMpi25IeeeSgeChain64_t sg_chain;
1092
1093 if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY)) {
1094 if ((cmd->io_request->IoFlags & MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH)
1095 != MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH)
1096 cmd->io_request->ChainOffset = sc->chain_offset_io_request;
1097 else
1098 cmd->io_request->ChainOffset = 0;
1099 } else
1100 cmd->io_request->ChainOffset = sc->chain_offset_io_request;
1101 sg_chain = sgl_ptr;
1102 if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY))
1103 sg_chain->Flags = IEEE_SGE_FLAGS_CHAIN_ELEMENT;
1104 else
1105 sg_chain->Flags = (IEEE_SGE_FLAGS_CHAIN_ELEMENT | MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR);
1106 sg_chain->Length = (sizeof(MPI2_SGE_IO_UNION) * (nseg - sg_processed));
1107 sg_chain->Address = cmd->chain_frame_phys_addr;
1108 sgl_ptr = (pMpi25IeeeSgeChain64_t)cmd->chain_frame;
1109 }
1110 }
1111 }
1112 cmd->sge_count = nseg;
1113}
1114
1115/*
1116 * mrsas_freeze_simq: Freeze SIM queue
1117 * input: Pointer to command packet
1118 * Pointer to SIM
1119 *
1120 * This function freezes the sim queue.
1121 */
1122static void
1123mrsas_freeze_simq(struct mrsas_mpt_cmd *cmd, struct cam_sim *sim)
1124{
1125 union ccb *ccb = (union ccb *)(cmd->ccb_ptr);
1126
1127 xpt_freeze_simq(sim, 1);
1128 ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
1129 ccb->ccb_h.status |= CAM_REQUEUE_REQ;
1130}
1131
1132void
1133mrsas_xpt_freeze(struct mrsas_softc *sc)
1134{
1135 xpt_freeze_simq(sc->sim_0, 1);
1136 xpt_freeze_simq(sc->sim_1, 1);
1137}
1138
1139void
1140mrsas_xpt_release(struct mrsas_softc *sc)
1141{
1142 xpt_release_simq(sc->sim_0, 1);
1143 xpt_release_simq(sc->sim_1, 1);
1144}
1145
1146/*
1147 * mrsas_cmd_done: Perform remaining command completion
1148 * input: Adapter instance soft state Pointer to command packet
1149 *
1150 * This function calls ummap request and releases the MPT command.
1151 */
1152void
1153mrsas_cmd_done(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd)
1154{
1155 callout_stop(&cmd->cm_callout);
1156 mrsas_unmap_request(sc, cmd);
1157 mtx_lock(&sc->sim_lock);
1158 xpt_done(cmd->ccb_ptr);
1159 cmd->ccb_ptr = NULL;
1160 mtx_unlock(&sc->sim_lock);
1161 mrsas_release_mpt_cmd(cmd);
1162}
1163
1164/*
1165 * mrsas_cam_poll: Polling entry point
1166 * input: Pointer to SIM
1167 *
1168 * This is currently a stub function.
1169 */
1170static void
1171mrsas_cam_poll(struct cam_sim *sim)
1172{
1173 struct mrsas_softc *sc = (struct mrsas_softc *)cam_sim_softc(sim);
1174
1175 mrsas_isr((void *)sc);
1176}
1177
1178/*
1179 * mrsas_bus_scan: Perform bus scan
1180 * input: Adapter instance soft state
1181 *
1182 * This mrsas_bus_scan function is needed for FreeBSD 7.x. Also, it should not
1183 * be called in FreeBSD 8.x and later versions, where the bus scan is
1184 * automatic.
1185 */
1186int
1187mrsas_bus_scan(struct mrsas_softc *sc)
1188{
1189 union ccb *ccb_0;
1190 union ccb *ccb_1;
1191
1192 if ((ccb_0 = xpt_alloc_ccb()) == NULL) {
1193 return (ENOMEM);
1194 }
1195 if ((ccb_1 = xpt_alloc_ccb()) == NULL) {
1196 xpt_free_ccb(ccb_0);
1197 return (ENOMEM);
1198 }
1199 mtx_lock(&sc->sim_lock);
1200 if (xpt_create_path(&ccb_0->ccb_h.path, xpt_periph, cam_sim_path(sc->sim_0),
1201 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
1202 xpt_free_ccb(ccb_0);
1203 xpt_free_ccb(ccb_1);
1204 mtx_unlock(&sc->sim_lock);
1205 return (EIO);
1206 }
1207 if (xpt_create_path(&ccb_1->ccb_h.path, xpt_periph, cam_sim_path(sc->sim_1),
1208 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
1209 xpt_free_ccb(ccb_0);
1210 xpt_free_ccb(ccb_1);
1211 mtx_unlock(&sc->sim_lock);
1212 return (EIO);
1213 }
1214 mtx_unlock(&sc->sim_lock);
1215 xpt_rescan(ccb_0);
1216 xpt_rescan(ccb_1);
1217
1218 return (0);
1219}
1220
1221/*
1222 * mrsas_bus_scan_sim: Perform bus scan per SIM
1223 * input: adapter instance soft state
1224 *
1225 * This function will be called from Event handler on LD creation/deletion,
1226 * JBOD on/off.
1227 */
1228int
1229mrsas_bus_scan_sim(struct mrsas_softc *sc, struct cam_sim *sim)
1230{
1231 union ccb *ccb;
1232
1233 if ((ccb = xpt_alloc_ccb()) == NULL) {
1234 return (ENOMEM);
1235 }
1236 mtx_lock(&sc->sim_lock);
1237 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, cam_sim_path(sim),
1238 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
1239 xpt_free_ccb(ccb);
1240 mtx_unlock(&sc->sim_lock);
1241 return (EIO);
1242 }
1243 mtx_unlock(&sc->sim_lock);
1244 xpt_rescan(ccb);
1245
1246 return (0);
1247}
2 * Copyright (c) 2015, AVAGO Tech. All rights reserved. Author: Marian Choy
3 * Copyright (c) 2014, LSI Corp. All rights reserved. Author: Marian Choy
4 * Support: freebsdraid@avagotech.com
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met:
9 *
10 * 1. Redistributions of source code must retain the above copyright notice,
11 * this list of conditions and the following disclaimer. 2. Redistributions
12 * in binary form must reproduce the above copyright notice, this list of
13 * conditions and the following disclaimer in the documentation and/or other
14 * materials provided with the distribution. 3. Neither the name of the
15 * <ORGANIZATION> nor the names of its contributors may be used to endorse or
16 * promote products derived from this software without specific prior written
17 * permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
23 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 *
31 */
32
33#include <sys/cdefs.h>
34__FBSDID("$FreeBSD: head/sys/dev/mrsas/mrsas_cam.c 282533 2015-05-06 10:46:28Z kadesai $");
35
36#include "dev/mrsas/mrsas.h"
37
38#include <cam/cam.h>
39#include <cam/cam_ccb.h>
40#include <cam/cam_sim.h>
41#include <cam/cam_xpt_sim.h>
42#include <cam/cam_debug.h>
43#include <cam/cam_periph.h>
44#include <cam/cam_xpt_periph.h>
45
46#include <cam/scsi/scsi_all.h>
47#include <cam/scsi/scsi_message.h>
48#include <sys/taskqueue.h>
49#include <sys/kernel.h>
50
51
52#include <sys/time.h> /* XXX for pcpu.h */
53#include <sys/pcpu.h> /* XXX for PCPU_GET */
54
55#define smp_processor_id() PCPU_GET(cpuid)
56
57/*
58 * Function prototypes
59 */
60int mrsas_cam_attach(struct mrsas_softc *sc);
61int mrsas_find_io_type(struct cam_sim *sim, union ccb *ccb);
62int mrsas_bus_scan(struct mrsas_softc *sc);
63int mrsas_bus_scan_sim(struct mrsas_softc *sc, struct cam_sim *sim);
64int
65mrsas_map_request(struct mrsas_softc *sc,
66 struct mrsas_mpt_cmd *cmd, union ccb *ccb);
67int
68mrsas_build_ldio(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
69 union ccb *ccb);
70int
71mrsas_build_dcdb(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
72 union ccb *ccb, struct cam_sim *sim);
73int
74mrsas_setup_io(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
75 union ccb *ccb, u_int32_t device_id,
76 MRSAS_RAID_SCSI_IO_REQUEST * io_request);
77void mrsas_xpt_freeze(struct mrsas_softc *sc);
78void mrsas_xpt_release(struct mrsas_softc *sc);
79void mrsas_cam_detach(struct mrsas_softc *sc);
80void mrsas_release_mpt_cmd(struct mrsas_mpt_cmd *cmd);
81void mrsas_unmap_request(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd);
82void mrsas_cmd_done(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd);
83void
84mrsas_fire_cmd(struct mrsas_softc *sc, u_int32_t req_desc_lo,
85 u_int32_t req_desc_hi);
86void
87mrsas_set_pd_lba(MRSAS_RAID_SCSI_IO_REQUEST * io_request,
88 u_int8_t cdb_len, struct IO_REQUEST_INFO *io_info, union ccb *ccb,
89 MR_DRV_RAID_MAP_ALL * local_map_ptr, u_int32_t ref_tag,
90 u_int32_t ld_block_size);
91static void mrsas_freeze_simq(struct mrsas_mpt_cmd *cmd, struct cam_sim *sim);
92static void mrsas_cam_poll(struct cam_sim *sim);
93static void mrsas_action(struct cam_sim *sim, union ccb *ccb);
94static void mrsas_scsiio_timeout(void *data);
95static void
96mrsas_data_load_cb(void *arg, bus_dma_segment_t *segs,
97 int nseg, int error);
98static int32_t
99mrsas_startio(struct mrsas_softc *sc, struct cam_sim *sim,
100 union ccb *ccb);
101struct mrsas_mpt_cmd *mrsas_get_mpt_cmd(struct mrsas_softc *sc);
102MRSAS_REQUEST_DESCRIPTOR_UNION *
103 mrsas_get_request_desc(struct mrsas_softc *sc, u_int16_t index);
104
105extern u_int16_t MR_TargetIdToLdGet(u_int32_t ldTgtId, MR_DRV_RAID_MAP_ALL * map);
106extern u_int32_t
107MR_LdBlockSizeGet(u_int32_t ldTgtId, MR_DRV_RAID_MAP_ALL * map,
108 struct mrsas_softc *sc);
109extern void mrsas_isr(void *arg);
110extern void mrsas_aen_handler(struct mrsas_softc *sc);
111extern u_int8_t
112MR_BuildRaidContext(struct mrsas_softc *sc,
113 struct IO_REQUEST_INFO *io_info, RAID_CONTEXT * pRAID_Context,
114 MR_DRV_RAID_MAP_ALL * map);
115extern u_int16_t
116MR_LdSpanArrayGet(u_int32_t ld, u_int32_t span,
117 MR_DRV_RAID_MAP_ALL * map);
118extern u_int16_t
119mrsas_get_updated_dev_handle(struct mrsas_softc *sc,
120 PLD_LOAD_BALANCE_INFO lbInfo, struct IO_REQUEST_INFO *io_info);
121extern u_int8_t
122megasas_get_best_arm(PLD_LOAD_BALANCE_INFO lbInfo, u_int8_t arm,
123 u_int64_t block, u_int32_t count);
124
125
126/*
127 * mrsas_cam_attach: Main entry to CAM subsystem
128 * input: Adapter instance soft state
129 *
130 * This function is called from mrsas_attach() during initialization to perform
131 * SIM allocations and XPT bus registration. If the kernel version is 7.4 or
132 * earlier, it would also initiate a bus scan.
133 */
134int
135mrsas_cam_attach(struct mrsas_softc *sc)
136{
137 struct cam_devq *devq;
138 int mrsas_cam_depth;
139
140 mrsas_cam_depth = sc->max_fw_cmds - MRSAS_INTERNAL_CMDS;
141
142 if ((devq = cam_simq_alloc(mrsas_cam_depth)) == NULL) {
143 device_printf(sc->mrsas_dev, "Cannot allocate SIM queue\n");
144 return (ENOMEM);
145 }
146 /*
147 * Create SIM for bus 0 and register, also create path
148 */
149 sc->sim_0 = cam_sim_alloc(mrsas_action, mrsas_cam_poll, "mrsas", sc,
150 device_get_unit(sc->mrsas_dev), &sc->sim_lock, mrsas_cam_depth,
151 mrsas_cam_depth, devq);
152 if (sc->sim_0 == NULL) {
153 cam_simq_free(devq);
154 device_printf(sc->mrsas_dev, "Cannot register SIM\n");
155 return (ENXIO);
156 }
157 /* Initialize taskqueue for Event Handling */
158 TASK_INIT(&sc->ev_task, 0, (void *)mrsas_aen_handler, sc);
159 sc->ev_tq = taskqueue_create("mrsas_taskq", M_NOWAIT | M_ZERO,
160 taskqueue_thread_enqueue, &sc->ev_tq);
161
162 /* Run the task queue with lowest priority */
163 taskqueue_start_threads(&sc->ev_tq, 1, 255, "%s taskq",
164 device_get_nameunit(sc->mrsas_dev));
165 mtx_lock(&sc->sim_lock);
166 if (xpt_bus_register(sc->sim_0, sc->mrsas_dev, 0) != CAM_SUCCESS) {
167 cam_sim_free(sc->sim_0, TRUE); /* passing true frees the devq */
168 mtx_unlock(&sc->sim_lock);
169 return (ENXIO);
170 }
171 if (xpt_create_path(&sc->path_0, NULL, cam_sim_path(sc->sim_0),
172 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
173 xpt_bus_deregister(cam_sim_path(sc->sim_0));
174 cam_sim_free(sc->sim_0, TRUE); /* passing true will free the
175 * devq */
176 mtx_unlock(&sc->sim_lock);
177 return (ENXIO);
178 }
179 mtx_unlock(&sc->sim_lock);
180
181 /*
182 * Create SIM for bus 1 and register, also create path
183 */
184 sc->sim_1 = cam_sim_alloc(mrsas_action, mrsas_cam_poll, "mrsas", sc,
185 device_get_unit(sc->mrsas_dev), &sc->sim_lock, mrsas_cam_depth,
186 mrsas_cam_depth, devq);
187 if (sc->sim_1 == NULL) {
188 cam_simq_free(devq);
189 device_printf(sc->mrsas_dev, "Cannot register SIM\n");
190 return (ENXIO);
191 }
192 mtx_lock(&sc->sim_lock);
193 if (xpt_bus_register(sc->sim_1, sc->mrsas_dev, 1) != CAM_SUCCESS) {
194 cam_sim_free(sc->sim_1, TRUE); /* passing true frees the devq */
195 mtx_unlock(&sc->sim_lock);
196 return (ENXIO);
197 }
198 if (xpt_create_path(&sc->path_1, NULL, cam_sim_path(sc->sim_1),
199 CAM_TARGET_WILDCARD,
200 CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
201 xpt_bus_deregister(cam_sim_path(sc->sim_1));
202 cam_sim_free(sc->sim_1, TRUE);
203 mtx_unlock(&sc->sim_lock);
204 return (ENXIO);
205 }
206 mtx_unlock(&sc->sim_lock);
207
208#if (__FreeBSD_version <= 704000)
209 if (mrsas_bus_scan(sc)) {
210 device_printf(sc->mrsas_dev, "Error in bus scan.\n");
211 return (1);
212 }
213#endif
214 return (0);
215}
216
217/*
218 * mrsas_cam_detach: De-allocates and teardown CAM
219 * input: Adapter instance soft state
220 *
221 * De-registers and frees the paths and SIMs.
222 */
223void
224mrsas_cam_detach(struct mrsas_softc *sc)
225{
226 if (sc->ev_tq != NULL)
227 taskqueue_free(sc->ev_tq);
228 mtx_lock(&sc->sim_lock);
229 if (sc->path_0)
230 xpt_free_path(sc->path_0);
231 if (sc->sim_0) {
232 xpt_bus_deregister(cam_sim_path(sc->sim_0));
233 cam_sim_free(sc->sim_0, FALSE);
234 }
235 if (sc->path_1)
236 xpt_free_path(sc->path_1);
237 if (sc->sim_1) {
238 xpt_bus_deregister(cam_sim_path(sc->sim_1));
239 cam_sim_free(sc->sim_1, TRUE);
240 }
241 mtx_unlock(&sc->sim_lock);
242}
243
244/*
245 * mrsas_action: SIM callback entry point
246 * input: pointer to SIM pointer to CAM Control Block
247 *
248 * This function processes CAM subsystem requests. The type of request is stored
249 * in ccb->ccb_h.func_code. The preprocessor #ifdef is necessary because
250 * ccb->cpi.maxio is not supported for FreeBSD version 7.4 or earlier.
251 */
252static void
253mrsas_action(struct cam_sim *sim, union ccb *ccb)
254{
255 struct mrsas_softc *sc = (struct mrsas_softc *)cam_sim_softc(sim);
256 struct ccb_hdr *ccb_h = &(ccb->ccb_h);
257 u_int32_t device_id;
258
259 switch (ccb->ccb_h.func_code) {
260 case XPT_SCSI_IO:
261 {
262 device_id = ccb_h->target_id;
263
264 /*
265 * bus 0 is LD, bus 1 is for system-PD
266 */
267 if (cam_sim_bus(sim) == 1 &&
268 sc->pd_list[device_id].driveState != MR_PD_STATE_SYSTEM) {
269 ccb->ccb_h.status |= CAM_DEV_NOT_THERE;
270 xpt_done(ccb);
271 } else {
272 if (mrsas_startio(sc, sim, ccb)) {
273 ccb->ccb_h.status |= CAM_REQ_INVALID;
274 xpt_done(ccb);
275 }
276 }
277 break;
278 }
279 case XPT_ABORT:
280 {
281 ccb->ccb_h.status = CAM_UA_ABORT;
282 xpt_done(ccb);
283 break;
284 }
285 case XPT_RESET_BUS:
286 {
287 xpt_done(ccb);
288 break;
289 }
290 case XPT_GET_TRAN_SETTINGS:
291 {
292 ccb->cts.protocol = PROTO_SCSI;
293 ccb->cts.protocol_version = SCSI_REV_2;
294 ccb->cts.transport = XPORT_SPI;
295 ccb->cts.transport_version = 2;
296 ccb->cts.xport_specific.spi.valid = CTS_SPI_VALID_DISC;
297 ccb->cts.xport_specific.spi.flags = CTS_SPI_FLAGS_DISC_ENB;
298 ccb->cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ;
299 ccb->cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB;
300 ccb->ccb_h.status = CAM_REQ_CMP;
301 xpt_done(ccb);
302 break;
303 }
304 case XPT_SET_TRAN_SETTINGS:
305 {
306 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
307 xpt_done(ccb);
308 break;
309 }
310 case XPT_CALC_GEOMETRY:
311 {
312 cam_calc_geometry(&ccb->ccg, 1);
313 xpt_done(ccb);
314 break;
315 }
316 case XPT_PATH_INQ:
317 {
318 ccb->cpi.version_num = 1;
319 ccb->cpi.hba_inquiry = 0;
320 ccb->cpi.target_sprt = 0;
321#if (__FreeBSD_version >= 902001)
322 ccb->cpi.hba_misc = PIM_UNMAPPED;
323#else
324 ccb->cpi.hba_misc = 0;
325#endif
326 ccb->cpi.hba_eng_cnt = 0;
327 ccb->cpi.max_lun = MRSAS_SCSI_MAX_LUNS;
328 ccb->cpi.unit_number = cam_sim_unit(sim);
329 ccb->cpi.bus_id = cam_sim_bus(sim);
330 ccb->cpi.initiator_id = MRSAS_SCSI_INITIATOR_ID;
331 ccb->cpi.base_transfer_speed = 150000;
332 strncpy(ccb->cpi.sim_vid, "FreeBSD", SIM_IDLEN);
333 strncpy(ccb->cpi.hba_vid, "AVAGO", HBA_IDLEN);
334 strncpy(ccb->cpi.dev_name, cam_sim_name(sim), DEV_IDLEN);
335 ccb->cpi.transport = XPORT_SPI;
336 ccb->cpi.transport_version = 2;
337 ccb->cpi.protocol = PROTO_SCSI;
338 ccb->cpi.protocol_version = SCSI_REV_2;
339 if (ccb->cpi.bus_id == 0)
340 ccb->cpi.max_target = MRSAS_MAX_PD - 1;
341 else
342 ccb->cpi.max_target = MRSAS_MAX_LD_IDS - 1;
343#if (__FreeBSD_version > 704000)
344 ccb->cpi.maxio = MRSAS_MAX_IO_SIZE;
345#endif
346 ccb->ccb_h.status = CAM_REQ_CMP;
347 xpt_done(ccb);
348 break;
349 }
350 default:
351 {
352 ccb->ccb_h.status = CAM_REQ_INVALID;
353 xpt_done(ccb);
354 break;
355 }
356 }
357}
358
359/*
360 * mrsas_scsiio_timeout: Callback function for IO timed out
361 * input: mpt command context
362 *
363 * This function will execute after timeout value provided by ccb header from
364 * CAM layer, if timer expires. Driver will run timer for all DCDM and LDIO
365 * comming from CAM layer. This function is callback function for IO timeout
366 * and it runs in no-sleep context. Set do_timedout_reset in Adapter context
367 * so that it will execute OCR/Kill adpter from ocr_thread context.
368 */
369static void
370mrsas_scsiio_timeout(void *data)
371{
372 struct mrsas_mpt_cmd *cmd;
373 struct mrsas_softc *sc;
374
375 cmd = (struct mrsas_mpt_cmd *)data;
376 sc = cmd->sc;
377
378 if (cmd->ccb_ptr == NULL) {
379 printf("command timeout with NULL ccb\n");
380 return;
381 }
382 /*
383 * Below callout is dummy entry so that it will be cancelled from
384 * mrsas_cmd_done(). Now Controller will go to OCR/Kill Adapter based
385 * on OCR enable/disable property of Controller from ocr_thread
386 * context.
387 */
388#if (__FreeBSD_version >= 1000510)
389 callout_reset_sbt(&cmd->cm_callout, SBT_1S * 600, 0,
390 mrsas_scsiio_timeout, cmd, 0);
391#else
392 callout_reset(&cmd->cm_callout, (600000 * hz) / 1000,
393 mrsas_scsiio_timeout, cmd);
394#endif
395 sc->do_timedout_reset = 1;
396 if (sc->ocr_thread_active)
397 wakeup(&sc->ocr_chan);
398}
399
400/*
401 * mrsas_startio: SCSI IO entry point
402 * input: Adapter instance soft state
403 * pointer to CAM Control Block
404 *
405 * This function is the SCSI IO entry point and it initiates IO processing. It
406 * copies the IO and depending if the IO is read/write or inquiry, it would
407 * call mrsas_build_ldio() or mrsas_build_dcdb(), respectively. It returns 0
408 * if the command is sent to firmware successfully, otherwise it returns 1.
409 */
410static int32_t
411mrsas_startio(struct mrsas_softc *sc, struct cam_sim *sim,
412 union ccb *ccb)
413{
414 struct mrsas_mpt_cmd *cmd;
415 struct ccb_hdr *ccb_h = &(ccb->ccb_h);
416 struct ccb_scsiio *csio = &(ccb->csio);
417 MRSAS_REQUEST_DESCRIPTOR_UNION *req_desc;
418
419 if ((csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE) {
420 ccb->ccb_h.status = CAM_REQ_CMP;
421 xpt_done(ccb);
422 return (0);
423 }
424 ccb_h->status |= CAM_SIM_QUEUED;
425 cmd = mrsas_get_mpt_cmd(sc);
426
427 if (!cmd) {
428 ccb_h->status |= CAM_REQUEUE_REQ;
429 xpt_done(ccb);
430 return (0);
431 }
432 if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
433 if (ccb_h->flags & CAM_DIR_IN)
434 cmd->flags |= MRSAS_DIR_IN;
435 if (ccb_h->flags & CAM_DIR_OUT)
436 cmd->flags |= MRSAS_DIR_OUT;
437 } else
438 cmd->flags = MRSAS_DIR_NONE; /* no data */
439
440/* For FreeBSD 9.2 and higher */
441#if (__FreeBSD_version >= 902001)
442 /*
443 * XXX We don't yet support physical addresses here.
444 */
445 switch ((ccb->ccb_h.flags & CAM_DATA_MASK)) {
446 case CAM_DATA_PADDR:
447 case CAM_DATA_SG_PADDR:
448 device_printf(sc->mrsas_dev, "%s: physical addresses not supported\n",
449 __func__);
450 mrsas_release_mpt_cmd(cmd);
451 ccb_h->status = CAM_REQ_INVALID;
452 ccb_h->status &= ~CAM_SIM_QUEUED;
453 goto done;
454 case CAM_DATA_SG:
455 device_printf(sc->mrsas_dev, "%s: scatter gather is not supported\n",
456 __func__);
457 mrsas_release_mpt_cmd(cmd);
458 ccb_h->status = CAM_REQ_INVALID;
459 goto done;
460 case CAM_DATA_VADDR:
461 if (csio->dxfer_len > MRSAS_MAX_IO_SIZE) {
462 mrsas_release_mpt_cmd(cmd);
463 ccb_h->status = CAM_REQ_TOO_BIG;
464 goto done;
465 }
466 cmd->length = csio->dxfer_len;
467 if (cmd->length)
468 cmd->data = csio->data_ptr;
469 break;
470 case CAM_DATA_BIO:
471 cmd->length = csio->dxfer_len;
472 if (cmd->length)
473 cmd->data = csio->data_ptr;
474 break;
475 default:
476 ccb->ccb_h.status = CAM_REQ_INVALID;
477 goto done;
478 }
479#else
480 if (!(ccb_h->flags & CAM_DATA_PHYS)) { /* Virtual data address */
481 if (!(ccb_h->flags & CAM_SCATTER_VALID)) {
482 if (csio->dxfer_len > MRSAS_MAX_IO_SIZE) {
483 mrsas_release_mpt_cmd(cmd);
484 ccb_h->status = CAM_REQ_TOO_BIG;
485 goto done;
486 }
487 cmd->length = csio->dxfer_len;
488 if (cmd->length)
489 cmd->data = csio->data_ptr;
490 } else {
491 mrsas_release_mpt_cmd(cmd);
492 ccb_h->status = CAM_REQ_INVALID;
493 goto done;
494 }
495 } else { /* Data addresses are physical. */
496 mrsas_release_mpt_cmd(cmd);
497 ccb_h->status = CAM_REQ_INVALID;
498 ccb_h->status &= ~CAM_SIM_QUEUED;
499 goto done;
500 }
501#endif
502 /* save ccb ptr */
503 cmd->ccb_ptr = ccb;
504
505 req_desc = mrsas_get_request_desc(sc, (cmd->index) - 1);
506 if (!req_desc) {
507 device_printf(sc->mrsas_dev, "Cannot get request_descriptor.\n");
508 return (FAIL);
509 }
510 memset(req_desc, 0, sizeof(MRSAS_REQUEST_DESCRIPTOR_UNION));
511 cmd->request_desc = req_desc;
512
513 if (ccb_h->flags & CAM_CDB_POINTER)
514 bcopy(csio->cdb_io.cdb_ptr, cmd->io_request->CDB.CDB32, csio->cdb_len);
515 else
516 bcopy(csio->cdb_io.cdb_bytes, cmd->io_request->CDB.CDB32, csio->cdb_len);
517 mtx_lock(&sc->raidmap_lock);
518
519 /* Check for IO type READ-WRITE targeted for Logical Volume */
520 if (mrsas_find_io_type(sim, ccb) == READ_WRITE_LDIO) {
521 /* Build READ-WRITE IO for Logical Volume */
522 if (mrsas_build_ldio(sc, cmd, ccb)) {
523 device_printf(sc->mrsas_dev, "Build LDIO failed.\n");
524 mtx_unlock(&sc->raidmap_lock);
525 return (1);
526 }
527 } else {
528 if (mrsas_build_dcdb(sc, cmd, ccb, sim)) {
529 device_printf(sc->mrsas_dev, "Build DCDB failed.\n");
530 mtx_unlock(&sc->raidmap_lock);
531 return (1);
532 }
533 }
534 mtx_unlock(&sc->raidmap_lock);
535
536 if (cmd->flags == MRSAS_DIR_IN) /* from device */
537 cmd->io_request->Control |= MPI2_SCSIIO_CONTROL_READ;
538 else if (cmd->flags == MRSAS_DIR_OUT) /* to device */
539 cmd->io_request->Control |= MPI2_SCSIIO_CONTROL_WRITE;
540
541 cmd->io_request->SGLFlags = MPI2_SGE_FLAGS_64_BIT_ADDRESSING;
542 cmd->io_request->SGLOffset0 = offsetof(MRSAS_RAID_SCSI_IO_REQUEST, SGL) / 4;
543 cmd->io_request->SenseBufferLowAddress = cmd->sense_phys_addr;
544 cmd->io_request->SenseBufferLength = MRSAS_SCSI_SENSE_BUFFERSIZE;
545
546 req_desc = cmd->request_desc;
547 req_desc->SCSIIO.SMID = cmd->index;
548
549 /*
550 * Start timer for IO timeout. Default timeout value is 90 second.
551 */
552#if (__FreeBSD_version >= 1000510)
553 callout_reset_sbt(&cmd->cm_callout, SBT_1S * 600, 0,
554 mrsas_scsiio_timeout, cmd, 0);
555#else
556 callout_reset(&cmd->cm_callout, (600000 * hz) / 1000,
557 mrsas_scsiio_timeout, cmd);
558#endif
559 mrsas_atomic_inc(&sc->fw_outstanding);
560
561 if (mrsas_atomic_read(&sc->fw_outstanding) > sc->io_cmds_highwater)
562 sc->io_cmds_highwater++;
563
564 mrsas_fire_cmd(sc, req_desc->addr.u.low, req_desc->addr.u.high);
565 return (0);
566
567done:
568 xpt_done(ccb);
569 return (0);
570}
571
572/*
573 * mrsas_find_io_type: Determines if IO is read/write or inquiry
574 * input: pointer to CAM Control Block
575 *
576 * This function determines if the IO is read/write or inquiry. It returns a 1
577 * if the IO is read/write and 0 if it is inquiry.
578 */
579int
580mrsas_find_io_type(struct cam_sim *sim, union ccb *ccb)
581{
582 struct ccb_scsiio *csio = &(ccb->csio);
583
584 switch (csio->cdb_io.cdb_bytes[0]) {
585 case READ_10:
586 case WRITE_10:
587 case READ_12:
588 case WRITE_12:
589 case READ_6:
590 case WRITE_6:
591 case READ_16:
592 case WRITE_16:
593 return (cam_sim_bus(sim) ?
594 READ_WRITE_SYSPDIO : READ_WRITE_LDIO);
595 default:
596 return (cam_sim_bus(sim) ?
597 NON_READ_WRITE_SYSPDIO : NON_READ_WRITE_LDIO);
598 }
599}
600
601/*
602 * mrsas_get_mpt_cmd: Get a cmd from free command pool
603 * input: Adapter instance soft state
604 *
605 * This function removes an MPT command from the command free list and
606 * initializes it.
607 */
608struct mrsas_mpt_cmd *
609mrsas_get_mpt_cmd(struct mrsas_softc *sc)
610{
611 struct mrsas_mpt_cmd *cmd = NULL;
612
613 mtx_lock(&sc->mpt_cmd_pool_lock);
614 if (!TAILQ_EMPTY(&sc->mrsas_mpt_cmd_list_head)) {
615 cmd = TAILQ_FIRST(&sc->mrsas_mpt_cmd_list_head);
616 TAILQ_REMOVE(&sc->mrsas_mpt_cmd_list_head, cmd, next);
617 }
618 memset((uint8_t *)cmd->io_request, 0, MRSAS_MPI2_RAID_DEFAULT_IO_FRAME_SIZE);
619 cmd->data = NULL;
620 cmd->length = 0;
621 cmd->flags = 0;
622 cmd->error_code = 0;
623 cmd->load_balance = 0;
624 cmd->ccb_ptr = NULL;
625 mtx_unlock(&sc->mpt_cmd_pool_lock);
626
627 return cmd;
628}
629
630/*
631 * mrsas_release_mpt_cmd: Return a cmd to free command pool
632 * input: Command packet for return to free command pool
633 *
634 * This function returns an MPT command to the free command list.
635 */
636void
637mrsas_release_mpt_cmd(struct mrsas_mpt_cmd *cmd)
638{
639 struct mrsas_softc *sc = cmd->sc;
640
641 mtx_lock(&sc->mpt_cmd_pool_lock);
642 cmd->sync_cmd_idx = (u_int32_t)MRSAS_ULONG_MAX;
643 TAILQ_INSERT_TAIL(&(sc->mrsas_mpt_cmd_list_head), cmd, next);
644 mtx_unlock(&sc->mpt_cmd_pool_lock);
645
646 return;
647}
648
649/*
650 * mrsas_get_request_desc: Get request descriptor from array
651 * input: Adapter instance soft state
652 * SMID index
653 *
654 * This function returns a pointer to the request descriptor.
655 */
656MRSAS_REQUEST_DESCRIPTOR_UNION *
657mrsas_get_request_desc(struct mrsas_softc *sc, u_int16_t index)
658{
659 u_int8_t *p;
660
661 if (index >= sc->max_fw_cmds) {
662 device_printf(sc->mrsas_dev, "Invalid SMID (0x%x)request for desc\n", index);
663 return NULL;
664 }
665 p = sc->req_desc + sizeof(MRSAS_REQUEST_DESCRIPTOR_UNION) * index;
666
667 return (MRSAS_REQUEST_DESCRIPTOR_UNION *) p;
668}
669
670/*
671 * mrsas_build_ldio: Builds an LDIO command
672 * input: Adapter instance soft state
673 * Pointer to command packet
674 * Pointer to CCB
675 *
676 * This function builds the LDIO command packet. It returns 0 if the command is
677 * built successfully, otherwise it returns a 1.
678 */
679int
680mrsas_build_ldio(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
681 union ccb *ccb)
682{
683 struct ccb_hdr *ccb_h = &(ccb->ccb_h);
684 struct ccb_scsiio *csio = &(ccb->csio);
685 u_int32_t device_id;
686 MRSAS_RAID_SCSI_IO_REQUEST *io_request;
687
688 device_id = ccb_h->target_id;
689
690 io_request = cmd->io_request;
691 io_request->RaidContext.VirtualDiskTgtId = device_id;
692 io_request->RaidContext.status = 0;
693 io_request->RaidContext.exStatus = 0;
694
695 /* just the cdb len, other flags zero, and ORed-in later for FP */
696 io_request->IoFlags = csio->cdb_len;
697
698 if (mrsas_setup_io(sc, cmd, ccb, device_id, io_request) != SUCCESS)
699 device_printf(sc->mrsas_dev, "Build ldio or fpio error\n");
700
701 io_request->DataLength = cmd->length;
702
703 if (mrsas_map_request(sc, cmd, ccb) == SUCCESS) {
704 if (cmd->sge_count > MRSAS_MAX_SGL) {
705 device_printf(sc->mrsas_dev, "Error: sge_count (0x%x) exceeds"
706 "max (0x%x) allowed\n", cmd->sge_count, sc->max_num_sge);
707 return (FAIL);
708 }
709 io_request->RaidContext.numSGE = cmd->sge_count;
710 } else {
711 device_printf(sc->mrsas_dev, "Data map/load failed.\n");
712 return (FAIL);
713 }
714 return (0);
715}
716
717/*
718 * mrsas_setup_io: Set up data including Fast Path I/O
719 * input: Adapter instance soft state
720 * Pointer to command packet
721 * Pointer to CCB
722 *
723 * This function builds the DCDB inquiry command. It returns 0 if the command
724 * is built successfully, otherwise it returns a 1.
725 */
726int
727mrsas_setup_io(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
728 union ccb *ccb, u_int32_t device_id,
729 MRSAS_RAID_SCSI_IO_REQUEST * io_request)
730{
731 struct ccb_hdr *ccb_h = &(ccb->ccb_h);
732 struct ccb_scsiio *csio = &(ccb->csio);
733 struct IO_REQUEST_INFO io_info;
734 MR_DRV_RAID_MAP_ALL *map_ptr;
735 u_int8_t fp_possible;
736 u_int32_t start_lba_hi, start_lba_lo, ld_block_size;
737 u_int32_t datalength = 0;
738
739 start_lba_lo = 0;
740 start_lba_hi = 0;
741 fp_possible = 0;
742
743 /*
744 * READ_6 (0x08) or WRITE_6 (0x0A) cdb
745 */
746 if (csio->cdb_len == 6) {
747 datalength = (u_int32_t)csio->cdb_io.cdb_bytes[4];
748 start_lba_lo = ((u_int32_t)csio->cdb_io.cdb_bytes[1] << 16) |
749 ((u_int32_t)csio->cdb_io.cdb_bytes[2] << 8) |
750 (u_int32_t)csio->cdb_io.cdb_bytes[3];
751 start_lba_lo &= 0x1FFFFF;
752 }
753 /*
754 * READ_10 (0x28) or WRITE_6 (0x2A) cdb
755 */
756 else if (csio->cdb_len == 10) {
757 datalength = (u_int32_t)csio->cdb_io.cdb_bytes[8] |
758 ((u_int32_t)csio->cdb_io.cdb_bytes[7] << 8);
759 start_lba_lo = ((u_int32_t)csio->cdb_io.cdb_bytes[2] << 24) |
760 ((u_int32_t)csio->cdb_io.cdb_bytes[3] << 16) |
761 (u_int32_t)csio->cdb_io.cdb_bytes[4] << 8 |
762 ((u_int32_t)csio->cdb_io.cdb_bytes[5]);
763 }
764 /*
765 * READ_12 (0xA8) or WRITE_12 (0xAA) cdb
766 */
767 else if (csio->cdb_len == 12) {
768 datalength = (u_int32_t)csio->cdb_io.cdb_bytes[6] << 24 |
769 ((u_int32_t)csio->cdb_io.cdb_bytes[7] << 16) |
770 ((u_int32_t)csio->cdb_io.cdb_bytes[8] << 8) |
771 ((u_int32_t)csio->cdb_io.cdb_bytes[9]);
772 start_lba_lo = ((u_int32_t)csio->cdb_io.cdb_bytes[2] << 24) |
773 ((u_int32_t)csio->cdb_io.cdb_bytes[3] << 16) |
774 (u_int32_t)csio->cdb_io.cdb_bytes[4] << 8 |
775 ((u_int32_t)csio->cdb_io.cdb_bytes[5]);
776 }
777 /*
778 * READ_16 (0x88) or WRITE_16 (0xx8A) cdb
779 */
780 else if (csio->cdb_len == 16) {
781 datalength = (u_int32_t)csio->cdb_io.cdb_bytes[10] << 24 |
782 ((u_int32_t)csio->cdb_io.cdb_bytes[11] << 16) |
783 ((u_int32_t)csio->cdb_io.cdb_bytes[12] << 8) |
784 ((u_int32_t)csio->cdb_io.cdb_bytes[13]);
785 start_lba_lo = ((u_int32_t)csio->cdb_io.cdb_bytes[6] << 24) |
786 ((u_int32_t)csio->cdb_io.cdb_bytes[7] << 16) |
787 (u_int32_t)csio->cdb_io.cdb_bytes[8] << 8 |
788 ((u_int32_t)csio->cdb_io.cdb_bytes[9]);
789 start_lba_hi = ((u_int32_t)csio->cdb_io.cdb_bytes[2] << 24) |
790 ((u_int32_t)csio->cdb_io.cdb_bytes[3] << 16) |
791 (u_int32_t)csio->cdb_io.cdb_bytes[4] << 8 |
792 ((u_int32_t)csio->cdb_io.cdb_bytes[5]);
793 }
794 memset(&io_info, 0, sizeof(struct IO_REQUEST_INFO));
795 io_info.ldStartBlock = ((u_int64_t)start_lba_hi << 32) | start_lba_lo;
796 io_info.numBlocks = datalength;
797 io_info.ldTgtId = device_id;
798
799 switch (ccb_h->flags & CAM_DIR_MASK) {
800 case CAM_DIR_IN:
801 io_info.isRead = 1;
802 break;
803 case CAM_DIR_OUT:
804 io_info.isRead = 0;
805 break;
806 case CAM_DIR_NONE:
807 default:
808 mrsas_dprint(sc, MRSAS_TRACE, "From %s : DMA Flag is %d \n", __func__, ccb_h->flags & CAM_DIR_MASK);
809 break;
810 }
811
812 map_ptr = sc->ld_drv_map[(sc->map_id & 1)];
813 ld_block_size = MR_LdBlockSizeGet(device_id, map_ptr, sc);
814
815 if ((MR_TargetIdToLdGet(device_id, map_ptr) >= MAX_LOGICAL_DRIVES_EXT) ||
816 (!sc->fast_path_io)) {
817 io_request->RaidContext.regLockFlags = 0;
818 fp_possible = 0;
819 } else {
820 if (MR_BuildRaidContext(sc, &io_info, &io_request->RaidContext, map_ptr))
821 fp_possible = io_info.fpOkForIo;
822 }
823
824 cmd->request_desc->SCSIIO.MSIxIndex =
825 sc->msix_vectors ? smp_processor_id() % sc->msix_vectors : 0;
826
827
828 if (fp_possible) {
829 mrsas_set_pd_lba(io_request, csio->cdb_len, &io_info, ccb, map_ptr,
830 start_lba_lo, ld_block_size);
831 io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
832 cmd->request_desc->SCSIIO.RequestFlags =
833 (MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY <<
834 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
835 if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY)) {
836 if (io_request->RaidContext.regLockFlags == REGION_TYPE_UNUSED)
837 cmd->request_desc->SCSIIO.RequestFlags =
838 (MRSAS_REQ_DESCRIPT_FLAGS_NO_LOCK <<
839 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
840 io_request->RaidContext.Type = MPI2_TYPE_CUDA;
841 io_request->RaidContext.nseg = 0x1;
842 io_request->IoFlags |= MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH;
843 io_request->RaidContext.regLockFlags |=
844 (MR_RL_FLAGS_GRANT_DESTINATION_CUDA |
845 MR_RL_FLAGS_SEQ_NUM_ENABLE);
846 }
847 if ((sc->load_balance_info[device_id].loadBalanceFlag) &&
848 (io_info.isRead)) {
849 io_info.devHandle =
850 mrsas_get_updated_dev_handle(sc,
851 &sc->load_balance_info[device_id], &io_info);
852 cmd->load_balance = MRSAS_LOAD_BALANCE_FLAG;
853 cmd->pd_r1_lb = io_info.pd_after_lb;
854 } else
855 cmd->load_balance = 0;
856 cmd->request_desc->SCSIIO.DevHandle = io_info.devHandle;
857 io_request->DevHandle = io_info.devHandle;
858 } else {
859 /* Not FP IO */
860 io_request->RaidContext.timeoutValue = map_ptr->raidMap.fpPdIoTimeoutSec;
861 cmd->request_desc->SCSIIO.RequestFlags =
862 (MRSAS_REQ_DESCRIPT_FLAGS_LD_IO <<
863 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
864 if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY)) {
865 if (io_request->RaidContext.regLockFlags == REGION_TYPE_UNUSED)
866 cmd->request_desc->SCSIIO.RequestFlags =
867 (MRSAS_REQ_DESCRIPT_FLAGS_NO_LOCK <<
868 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
869 io_request->RaidContext.Type = MPI2_TYPE_CUDA;
870 io_request->RaidContext.regLockFlags |=
871 (MR_RL_FLAGS_GRANT_DESTINATION_CPU0 |
872 MR_RL_FLAGS_SEQ_NUM_ENABLE);
873 io_request->RaidContext.nseg = 0x1;
874 }
875 io_request->Function = MRSAS_MPI2_FUNCTION_LD_IO_REQUEST;
876 io_request->DevHandle = device_id;
877 }
878 return (0);
879}
880
881/*
882 * mrsas_build_dcdb: Builds an DCDB command
883 * input: Adapter instance soft state
884 * Pointer to command packet
885 * Pointer to CCB
886 *
887 * This function builds the DCDB inquiry command. It returns 0 if the command
888 * is built successfully, otherwise it returns a 1.
889 */
890int
891mrsas_build_dcdb(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
892 union ccb *ccb, struct cam_sim *sim)
893{
894 struct ccb_hdr *ccb_h = &(ccb->ccb_h);
895 u_int32_t device_id;
896 MR_DRV_RAID_MAP_ALL *map_ptr;
897 MRSAS_RAID_SCSI_IO_REQUEST *io_request;
898
899 io_request = cmd->io_request;
900 device_id = ccb_h->target_id;
901 map_ptr = sc->ld_drv_map[(sc->map_id & 1)];
902
903 /*
904 * Check if this is RW for system PD or
905 * it's a NON RW for sys PD and there is NO secure jbod FW support
906 */
907 if (cam_sim_bus(sim) == 1 &&
908 sc->pd_list[device_id].driveState == MR_PD_STATE_SYSTEM) {
909
910 io_request->DevHandle =
911 map_ptr->raidMap.devHndlInfo[device_id].curDevHdl;
912 io_request->RaidContext.RAIDFlags =
913 MR_RAID_FLAGS_IO_SUB_TYPE_SYSTEM_PD <<
914 MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_SHIFT;
915 cmd->request_desc->SCSIIO.DevHandle = io_request->DevHandle;
916 cmd->request_desc->SCSIIO.MSIxIndex =
917 sc->msix_vectors ? smp_processor_id() % sc->msix_vectors : 0;
918
919 if (sc->secure_jbod_support && (mrsas_find_io_type(sim, ccb) == NON_READ_WRITE_SYSPDIO)) {
920 /* system pd firmware path */
921 io_request->Function = MRSAS_MPI2_FUNCTION_LD_IO_REQUEST;
922 cmd->request_desc->SCSIIO.RequestFlags =
923 (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO << MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
924 } else {
925 /* system pd fast path */
926 io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
927 io_request->RaidContext.timeoutValue = map_ptr->raidMap.fpPdIoTimeoutSec;
928 io_request->RaidContext.regLockFlags = 0;
929 io_request->RaidContext.regLockRowLBA = 0;
930 io_request->RaidContext.regLockLength = 0;
931
932 cmd->request_desc->SCSIIO.RequestFlags =
933 (MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY <<
934 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
935
936 /*
937 * NOTE - For system pd RW cmds only IoFlags will be FAST_PATH
938 * Because the NON RW cmds will now go via FW Queue
939 * and not the Exception queue
940 */
941 if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY))
942 io_request->IoFlags |= MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH;
943 }
944 } else {
945 /* FW path for SysPD or LD Non-RW (SCSI management commands) */
946 io_request->Function = MRSAS_MPI2_FUNCTION_LD_IO_REQUEST;
947 io_request->DevHandle = device_id;
948 cmd->request_desc->SCSIIO.RequestFlags =
949 (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO <<
950 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
951 }
952
953 io_request->RaidContext.VirtualDiskTgtId = device_id;
954 io_request->LUN[1] = ccb_h->target_lun & 0xF;
955 io_request->DataLength = cmd->length;
956
957 if (mrsas_map_request(sc, cmd, ccb) == SUCCESS) {
958 if (cmd->sge_count > sc->max_num_sge) {
959 device_printf(sc->mrsas_dev, "Error: sge_count (0x%x) exceeds"
960 "max (0x%x) allowed\n", cmd->sge_count, sc->max_num_sge);
961 return (1);
962 }
963 io_request->RaidContext.numSGE = cmd->sge_count;
964 } else {
965 device_printf(sc->mrsas_dev, "Data map/load failed.\n");
966 return (1);
967 }
968 return (0);
969}
970
971/*
972 * mrsas_map_request: Map and load data
973 * input: Adapter instance soft state
974 * Pointer to command packet
975 *
976 * For data from OS, map and load the data buffer into bus space. The SG list
977 * is built in the callback. If the bus dmamap load is not successful,
978 * cmd->error_code will contain the error code and a 1 is returned.
979 */
980int
981mrsas_map_request(struct mrsas_softc *sc,
982 struct mrsas_mpt_cmd *cmd, union ccb *ccb)
983{
984 u_int32_t retcode = 0;
985 struct cam_sim *sim;
986
987 sim = xpt_path_sim(cmd->ccb_ptr->ccb_h.path);
988
989 if (cmd->data != NULL) {
990 /* Map data buffer into bus space */
991 mtx_lock(&sc->io_lock);
992#if (__FreeBSD_version >= 902001)
993 retcode = bus_dmamap_load_ccb(sc->data_tag, cmd->data_dmamap, ccb,
994 mrsas_data_load_cb, cmd, 0);
995#else
996 retcode = bus_dmamap_load(sc->data_tag, cmd->data_dmamap, cmd->data,
997 cmd->length, mrsas_data_load_cb, cmd, BUS_DMA_NOWAIT);
998#endif
999 mtx_unlock(&sc->io_lock);
1000 if (retcode)
1001 device_printf(sc->mrsas_dev, "bus_dmamap_load(): retcode = %d\n", retcode);
1002 if (retcode == EINPROGRESS) {
1003 device_printf(sc->mrsas_dev, "request load in progress\n");
1004 mrsas_freeze_simq(cmd, sim);
1005 }
1006 }
1007 if (cmd->error_code)
1008 return (1);
1009 return (retcode);
1010}
1011
1012/*
1013 * mrsas_unmap_request: Unmap and unload data
1014 * input: Adapter instance soft state
1015 * Pointer to command packet
1016 *
1017 * This function unmaps and unloads data from OS.
1018 */
1019void
1020mrsas_unmap_request(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd)
1021{
1022 if (cmd->data != NULL) {
1023 if (cmd->flags & MRSAS_DIR_IN)
1024 bus_dmamap_sync(sc->data_tag, cmd->data_dmamap, BUS_DMASYNC_POSTREAD);
1025 if (cmd->flags & MRSAS_DIR_OUT)
1026 bus_dmamap_sync(sc->data_tag, cmd->data_dmamap, BUS_DMASYNC_POSTWRITE);
1027 mtx_lock(&sc->io_lock);
1028 bus_dmamap_unload(sc->data_tag, cmd->data_dmamap);
1029 mtx_unlock(&sc->io_lock);
1030 }
1031}
1032
1033/*
1034 * mrsas_data_load_cb: Callback entry point
1035 * input: Pointer to command packet as argument
1036 * Pointer to segment
1037 * Number of segments Error
1038 *
1039 * This is the callback function of the bus dma map load. It builds the SG
1040 * list.
1041 */
1042static void
1043mrsas_data_load_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1044{
1045 struct mrsas_mpt_cmd *cmd = (struct mrsas_mpt_cmd *)arg;
1046 struct mrsas_softc *sc = cmd->sc;
1047 MRSAS_RAID_SCSI_IO_REQUEST *io_request;
1048 pMpi25IeeeSgeChain64_t sgl_ptr;
1049 int i = 0, sg_processed = 0;
1050
1051 if (error) {
1052 cmd->error_code = error;
1053 device_printf(sc->mrsas_dev, "mrsas_data_load_cb: error=%d\n", error);
1054 if (error == EFBIG) {
1055 cmd->ccb_ptr->ccb_h.status = CAM_REQ_TOO_BIG;
1056 return;
1057 }
1058 }
1059 if (cmd->flags & MRSAS_DIR_IN)
1060 bus_dmamap_sync(cmd->sc->data_tag, cmd->data_dmamap,
1061 BUS_DMASYNC_PREREAD);
1062 if (cmd->flags & MRSAS_DIR_OUT)
1063 bus_dmamap_sync(cmd->sc->data_tag, cmd->data_dmamap,
1064 BUS_DMASYNC_PREWRITE);
1065 if (nseg > sc->max_num_sge) {
1066 device_printf(sc->mrsas_dev, "SGE count is too large or 0.\n");
1067 return;
1068 }
1069 io_request = cmd->io_request;
1070 sgl_ptr = (pMpi25IeeeSgeChain64_t)&io_request->SGL;
1071
1072 if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY)) {
1073 pMpi25IeeeSgeChain64_t sgl_ptr_end = sgl_ptr;
1074
1075 sgl_ptr_end += sc->max_sge_in_main_msg - 1;
1076 sgl_ptr_end->Flags = 0;
1077 }
1078 if (nseg != 0) {
1079 for (i = 0; i < nseg; i++) {
1080 sgl_ptr->Address = segs[i].ds_addr;
1081 sgl_ptr->Length = segs[i].ds_len;
1082 sgl_ptr->Flags = 0;
1083 if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY)) {
1084 if (i == nseg - 1)
1085 sgl_ptr->Flags = IEEE_SGE_FLAGS_END_OF_LIST;
1086 }
1087 sgl_ptr++;
1088 sg_processed = i + 1;
1089 if ((sg_processed == (sc->max_sge_in_main_msg - 1)) &&
1090 (nseg > sc->max_sge_in_main_msg)) {
1091 pMpi25IeeeSgeChain64_t sg_chain;
1092
1093 if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY)) {
1094 if ((cmd->io_request->IoFlags & MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH)
1095 != MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH)
1096 cmd->io_request->ChainOffset = sc->chain_offset_io_request;
1097 else
1098 cmd->io_request->ChainOffset = 0;
1099 } else
1100 cmd->io_request->ChainOffset = sc->chain_offset_io_request;
1101 sg_chain = sgl_ptr;
1102 if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY))
1103 sg_chain->Flags = IEEE_SGE_FLAGS_CHAIN_ELEMENT;
1104 else
1105 sg_chain->Flags = (IEEE_SGE_FLAGS_CHAIN_ELEMENT | MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR);
1106 sg_chain->Length = (sizeof(MPI2_SGE_IO_UNION) * (nseg - sg_processed));
1107 sg_chain->Address = cmd->chain_frame_phys_addr;
1108 sgl_ptr = (pMpi25IeeeSgeChain64_t)cmd->chain_frame;
1109 }
1110 }
1111 }
1112 cmd->sge_count = nseg;
1113}
1114
1115/*
1116 * mrsas_freeze_simq: Freeze SIM queue
1117 * input: Pointer to command packet
1118 * Pointer to SIM
1119 *
1120 * This function freezes the sim queue.
1121 */
1122static void
1123mrsas_freeze_simq(struct mrsas_mpt_cmd *cmd, struct cam_sim *sim)
1124{
1125 union ccb *ccb = (union ccb *)(cmd->ccb_ptr);
1126
1127 xpt_freeze_simq(sim, 1);
1128 ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
1129 ccb->ccb_h.status |= CAM_REQUEUE_REQ;
1130}
1131
1132void
1133mrsas_xpt_freeze(struct mrsas_softc *sc)
1134{
1135 xpt_freeze_simq(sc->sim_0, 1);
1136 xpt_freeze_simq(sc->sim_1, 1);
1137}
1138
1139void
1140mrsas_xpt_release(struct mrsas_softc *sc)
1141{
1142 xpt_release_simq(sc->sim_0, 1);
1143 xpt_release_simq(sc->sim_1, 1);
1144}
1145
1146/*
1147 * mrsas_cmd_done: Perform remaining command completion
1148 * input: Adapter instance soft state Pointer to command packet
1149 *
1150 * This function calls ummap request and releases the MPT command.
1151 */
1152void
1153mrsas_cmd_done(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd)
1154{
1155 callout_stop(&cmd->cm_callout);
1156 mrsas_unmap_request(sc, cmd);
1157 mtx_lock(&sc->sim_lock);
1158 xpt_done(cmd->ccb_ptr);
1159 cmd->ccb_ptr = NULL;
1160 mtx_unlock(&sc->sim_lock);
1161 mrsas_release_mpt_cmd(cmd);
1162}
1163
1164/*
1165 * mrsas_cam_poll: Polling entry point
1166 * input: Pointer to SIM
1167 *
1168 * This is currently a stub function.
1169 */
1170static void
1171mrsas_cam_poll(struct cam_sim *sim)
1172{
1173 struct mrsas_softc *sc = (struct mrsas_softc *)cam_sim_softc(sim);
1174
1175 mrsas_isr((void *)sc);
1176}
1177
1178/*
1179 * mrsas_bus_scan: Perform bus scan
1180 * input: Adapter instance soft state
1181 *
1182 * This mrsas_bus_scan function is needed for FreeBSD 7.x. Also, it should not
1183 * be called in FreeBSD 8.x and later versions, where the bus scan is
1184 * automatic.
1185 */
1186int
1187mrsas_bus_scan(struct mrsas_softc *sc)
1188{
1189 union ccb *ccb_0;
1190 union ccb *ccb_1;
1191
1192 if ((ccb_0 = xpt_alloc_ccb()) == NULL) {
1193 return (ENOMEM);
1194 }
1195 if ((ccb_1 = xpt_alloc_ccb()) == NULL) {
1196 xpt_free_ccb(ccb_0);
1197 return (ENOMEM);
1198 }
1199 mtx_lock(&sc->sim_lock);
1200 if (xpt_create_path(&ccb_0->ccb_h.path, xpt_periph, cam_sim_path(sc->sim_0),
1201 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
1202 xpt_free_ccb(ccb_0);
1203 xpt_free_ccb(ccb_1);
1204 mtx_unlock(&sc->sim_lock);
1205 return (EIO);
1206 }
1207 if (xpt_create_path(&ccb_1->ccb_h.path, xpt_periph, cam_sim_path(sc->sim_1),
1208 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
1209 xpt_free_ccb(ccb_0);
1210 xpt_free_ccb(ccb_1);
1211 mtx_unlock(&sc->sim_lock);
1212 return (EIO);
1213 }
1214 mtx_unlock(&sc->sim_lock);
1215 xpt_rescan(ccb_0);
1216 xpt_rescan(ccb_1);
1217
1218 return (0);
1219}
1220
1221/*
1222 * mrsas_bus_scan_sim: Perform bus scan per SIM
1223 * input: adapter instance soft state
1224 *
1225 * This function will be called from Event handler on LD creation/deletion,
1226 * JBOD on/off.
1227 */
1228int
1229mrsas_bus_scan_sim(struct mrsas_softc *sc, struct cam_sim *sim)
1230{
1231 union ccb *ccb;
1232
1233 if ((ccb = xpt_alloc_ccb()) == NULL) {
1234 return (ENOMEM);
1235 }
1236 mtx_lock(&sc->sim_lock);
1237 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, cam_sim_path(sim),
1238 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
1239 xpt_free_ccb(ccb);
1240 mtx_unlock(&sc->sim_lock);
1241 return (EIO);
1242 }
1243 mtx_unlock(&sc->sim_lock);
1244 xpt_rescan(ccb);
1245
1246 return (0);
1247}