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
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
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
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
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25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
36 #include "dev/mrsas/mrsas.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>
46 #include <cam/scsi/scsi_all.h>
47 #include <cam/scsi/scsi_message.h>
48 #include <sys/taskqueue.h>
49 #include <sys/kernel.h>
52 #include <sys/time.h> /* XXX for pcpu.h */
53 #include <sys/pcpu.h> /* XXX for PCPU_GET */
55 #define smp_processor_id() PCPU_GET(cpuid)
60 int mrsas_cam_attach(struct mrsas_softc *sc);
61 int mrsas_find_io_type(struct cam_sim *sim, union ccb *ccb);
62 int mrsas_bus_scan(struct mrsas_softc *sc);
63 int mrsas_bus_scan_sim(struct mrsas_softc *sc, struct cam_sim *sim);
65 mrsas_map_request(struct mrsas_softc *sc,
66 struct mrsas_mpt_cmd *cmd, union ccb *ccb);
68 mrsas_build_ldio_rw(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
71 mrsas_build_ldio_nonrw(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
74 mrsas_build_syspdio(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
75 union ccb *ccb, struct cam_sim *sim, u_int8_t fp_possible);
77 mrsas_setup_io(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
78 union ccb *ccb, u_int32_t device_id,
79 MRSAS_RAID_SCSI_IO_REQUEST * io_request);
80 void mrsas_xpt_freeze(struct mrsas_softc *sc);
81 void mrsas_xpt_release(struct mrsas_softc *sc);
82 void mrsas_cam_detach(struct mrsas_softc *sc);
83 void mrsas_release_mpt_cmd(struct mrsas_mpt_cmd *cmd);
84 void mrsas_unmap_request(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd);
85 void mrsas_cmd_done(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd);
87 mrsas_fire_cmd(struct mrsas_softc *sc, u_int32_t req_desc_lo,
88 u_int32_t req_desc_hi);
90 mrsas_set_pd_lba(MRSAS_RAID_SCSI_IO_REQUEST * io_request,
91 u_int8_t cdb_len, struct IO_REQUEST_INFO *io_info, union ccb *ccb,
92 MR_DRV_RAID_MAP_ALL * local_map_ptr, u_int32_t ref_tag,
93 u_int32_t ld_block_size);
94 static void mrsas_freeze_simq(struct mrsas_mpt_cmd *cmd, struct cam_sim *sim);
95 static void mrsas_cam_poll(struct cam_sim *sim);
96 static void mrsas_action(struct cam_sim *sim, union ccb *ccb);
97 static void mrsas_scsiio_timeout(void *data);
98 static int mrsas_track_scsiio(struct mrsas_softc *sc, target_id_t id, u_int32_t bus_id);
99 static void mrsas_tm_response_code(struct mrsas_softc *sc,
100 MPI2_SCSI_TASK_MANAGE_REPLY *mpi_reply);
101 static int mrsas_issue_tm(struct mrsas_softc *sc,
102 MRSAS_REQUEST_DESCRIPTOR_UNION *req_desc);
104 mrsas_data_load_cb(void *arg, bus_dma_segment_t *segs,
105 int nseg, int error);
107 mrsas_startio(struct mrsas_softc *sc, struct cam_sim *sim,
109 struct mrsas_mpt_cmd *mrsas_get_mpt_cmd(struct mrsas_softc *sc);
110 MRSAS_REQUEST_DESCRIPTOR_UNION *
111 mrsas_get_request_desc(struct mrsas_softc *sc, u_int16_t index);
114 mrsas_map_mpt_cmd_status(struct mrsas_mpt_cmd *cmd, u_int8_t status,
116 extern int mrsas_reset_targets(struct mrsas_softc *sc);
117 extern u_int16_t MR_TargetIdToLdGet(u_int32_t ldTgtId, MR_DRV_RAID_MAP_ALL * map);
119 MR_LdBlockSizeGet(u_int32_t ldTgtId, MR_DRV_RAID_MAP_ALL * map,
120 struct mrsas_softc *sc);
121 extern void mrsas_isr(void *arg);
122 extern void mrsas_aen_handler(struct mrsas_softc *sc);
124 MR_BuildRaidContext(struct mrsas_softc *sc,
125 struct IO_REQUEST_INFO *io_info, RAID_CONTEXT * pRAID_Context,
126 MR_DRV_RAID_MAP_ALL * map);
128 MR_LdSpanArrayGet(u_int32_t ld, u_int32_t span,
129 MR_DRV_RAID_MAP_ALL * map);
131 mrsas_get_updated_dev_handle(struct mrsas_softc *sc,
132 PLD_LOAD_BALANCE_INFO lbInfo, struct IO_REQUEST_INFO *io_info);
134 megasas_get_best_arm(PLD_LOAD_BALANCE_INFO lbInfo, u_int8_t arm,
135 u_int64_t block, u_int32_t count);
136 extern int mrsas_complete_cmd(struct mrsas_softc *sc, u_int32_t MSIxIndex);
137 extern MR_LD_RAID *MR_LdRaidGet(u_int32_t ld, MR_DRV_RAID_MAP_ALL * map);
138 extern void mrsas_disable_intr(struct mrsas_softc *sc);
139 extern void mrsas_enable_intr(struct mrsas_softc *sc);
143 * mrsas_cam_attach: Main entry to CAM subsystem
144 * input: Adapter instance soft state
146 * This function is called from mrsas_attach() during initialization to perform
147 * SIM allocations and XPT bus registration. If the kernel version is 7.4 or
148 * earlier, it would also initiate a bus scan.
151 mrsas_cam_attach(struct mrsas_softc *sc)
153 struct cam_devq *devq;
156 mrsas_cam_depth = sc->max_fw_cmds - MRSAS_INTERNAL_CMDS;
158 if ((devq = cam_simq_alloc(mrsas_cam_depth)) == NULL) {
159 device_printf(sc->mrsas_dev, "Cannot allocate SIM queue\n");
163 * Create SIM for bus 0 and register, also create path
165 sc->sim_0 = cam_sim_alloc(mrsas_action, mrsas_cam_poll, "mrsas", sc,
166 device_get_unit(sc->mrsas_dev), &sc->sim_lock, mrsas_cam_depth,
167 mrsas_cam_depth, devq);
168 if (sc->sim_0 == NULL) {
170 device_printf(sc->mrsas_dev, "Cannot register SIM\n");
173 /* Initialize taskqueue for Event Handling */
174 TASK_INIT(&sc->ev_task, 0, (void *)mrsas_aen_handler, sc);
175 sc->ev_tq = taskqueue_create("mrsas_taskq", M_NOWAIT | M_ZERO,
176 taskqueue_thread_enqueue, &sc->ev_tq);
178 /* Run the task queue with lowest priority */
179 taskqueue_start_threads(&sc->ev_tq, 1, 255, "%s taskq",
180 device_get_nameunit(sc->mrsas_dev));
181 mtx_lock(&sc->sim_lock);
182 if (xpt_bus_register(sc->sim_0, sc->mrsas_dev, 0) != CAM_SUCCESS) {
183 cam_sim_free(sc->sim_0, TRUE); /* passing true frees the devq */
184 mtx_unlock(&sc->sim_lock);
187 if (xpt_create_path(&sc->path_0, NULL, cam_sim_path(sc->sim_0),
188 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
189 xpt_bus_deregister(cam_sim_path(sc->sim_0));
190 cam_sim_free(sc->sim_0, TRUE); /* passing true will free the
192 mtx_unlock(&sc->sim_lock);
195 mtx_unlock(&sc->sim_lock);
198 * Create SIM for bus 1 and register, also create path
200 sc->sim_1 = cam_sim_alloc(mrsas_action, mrsas_cam_poll, "mrsas", sc,
201 device_get_unit(sc->mrsas_dev), &sc->sim_lock, mrsas_cam_depth,
202 mrsas_cam_depth, devq);
203 if (sc->sim_1 == NULL) {
205 device_printf(sc->mrsas_dev, "Cannot register SIM\n");
208 mtx_lock(&sc->sim_lock);
209 if (xpt_bus_register(sc->sim_1, sc->mrsas_dev, 1) != CAM_SUCCESS) {
210 cam_sim_free(sc->sim_1, TRUE); /* passing true frees the devq */
211 mtx_unlock(&sc->sim_lock);
214 if (xpt_create_path(&sc->path_1, NULL, cam_sim_path(sc->sim_1),
216 CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
217 xpt_bus_deregister(cam_sim_path(sc->sim_1));
218 cam_sim_free(sc->sim_1, TRUE);
219 mtx_unlock(&sc->sim_lock);
222 mtx_unlock(&sc->sim_lock);
224 #if (__FreeBSD_version <= 704000)
225 if (mrsas_bus_scan(sc)) {
226 device_printf(sc->mrsas_dev, "Error in bus scan.\n");
234 * mrsas_cam_detach: De-allocates and teardown CAM
235 * input: Adapter instance soft state
237 * De-registers and frees the paths and SIMs.
240 mrsas_cam_detach(struct mrsas_softc *sc)
242 if (sc->ev_tq != NULL)
243 taskqueue_free(sc->ev_tq);
244 mtx_lock(&sc->sim_lock);
246 xpt_free_path(sc->path_0);
248 xpt_bus_deregister(cam_sim_path(sc->sim_0));
249 cam_sim_free(sc->sim_0, FALSE);
252 xpt_free_path(sc->path_1);
254 xpt_bus_deregister(cam_sim_path(sc->sim_1));
255 cam_sim_free(sc->sim_1, TRUE);
257 mtx_unlock(&sc->sim_lock);
261 * mrsas_action: SIM callback entry point
262 * input: pointer to SIM pointer to CAM Control Block
264 * This function processes CAM subsystem requests. The type of request is stored
265 * in ccb->ccb_h.func_code. The preprocessor #ifdef is necessary because
266 * ccb->cpi.maxio is not supported for FreeBSD version 7.4 or earlier.
269 mrsas_action(struct cam_sim *sim, union ccb *ccb)
271 struct mrsas_softc *sc = (struct mrsas_softc *)cam_sim_softc(sim);
272 struct ccb_hdr *ccb_h = &(ccb->ccb_h);
276 * Check if the system going down
277 * or the adapter is in unrecoverable critical error
279 if (sc->remove_in_progress ||
280 (sc->adprecovery == MRSAS_HW_CRITICAL_ERROR)) {
281 ccb->ccb_h.status |= CAM_DEV_NOT_THERE;
286 switch (ccb->ccb_h.func_code) {
289 device_id = ccb_h->target_id;
292 * bus 0 is LD, bus 1 is for system-PD
294 if (cam_sim_bus(sim) == 1 &&
295 sc->pd_list[device_id].driveState != MR_PD_STATE_SYSTEM) {
296 ccb->ccb_h.status |= CAM_DEV_NOT_THERE;
299 if (mrsas_startio(sc, sim, ccb)) {
300 ccb->ccb_h.status |= CAM_REQ_INVALID;
308 ccb->ccb_h.status = CAM_UA_ABORT;
317 case XPT_GET_TRAN_SETTINGS:
319 ccb->cts.protocol = PROTO_SCSI;
320 ccb->cts.protocol_version = SCSI_REV_2;
321 ccb->cts.transport = XPORT_SPI;
322 ccb->cts.transport_version = 2;
323 ccb->cts.xport_specific.spi.valid = CTS_SPI_VALID_DISC;
324 ccb->cts.xport_specific.spi.flags = CTS_SPI_FLAGS_DISC_ENB;
325 ccb->cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ;
326 ccb->cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB;
327 ccb->ccb_h.status = CAM_REQ_CMP;
331 case XPT_SET_TRAN_SETTINGS:
333 ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
337 case XPT_CALC_GEOMETRY:
339 cam_calc_geometry(&ccb->ccg, 1);
345 ccb->cpi.version_num = 1;
346 ccb->cpi.hba_inquiry = 0;
347 ccb->cpi.target_sprt = 0;
348 #if (__FreeBSD_version >= 902001)
349 ccb->cpi.hba_misc = PIM_UNMAPPED;
351 ccb->cpi.hba_misc = 0;
353 ccb->cpi.hba_eng_cnt = 0;
354 ccb->cpi.max_lun = MRSAS_SCSI_MAX_LUNS;
355 ccb->cpi.unit_number = cam_sim_unit(sim);
356 ccb->cpi.bus_id = cam_sim_bus(sim);
357 ccb->cpi.initiator_id = MRSAS_SCSI_INITIATOR_ID;
358 ccb->cpi.base_transfer_speed = 150000;
359 strlcpy(ccb->cpi.sim_vid, "FreeBSD", SIM_IDLEN);
360 strlcpy(ccb->cpi.hba_vid, "AVAGO", HBA_IDLEN);
361 strlcpy(ccb->cpi.dev_name, cam_sim_name(sim), DEV_IDLEN);
362 ccb->cpi.transport = XPORT_SPI;
363 ccb->cpi.transport_version = 2;
364 ccb->cpi.protocol = PROTO_SCSI;
365 ccb->cpi.protocol_version = SCSI_REV_2;
366 if (ccb->cpi.bus_id == 0)
367 ccb->cpi.max_target = MRSAS_MAX_PD - 1;
369 ccb->cpi.max_target = MRSAS_MAX_LD_IDS - 1;
370 #if (__FreeBSD_version > 704000)
371 ccb->cpi.maxio = sc->max_num_sge * MRSAS_PAGE_SIZE;
373 ccb->ccb_h.status = CAM_REQ_CMP;
379 ccb->ccb_h.status = CAM_REQ_INVALID;
387 * mrsas_scsiio_timeout: Callback function for IO timed out
388 * input: mpt command context
390 * This function will execute after timeout value provided by ccb header from
391 * CAM layer, if timer expires. Driver will run timer for all DCDM and LDIO
392 * coming from CAM layer. This function is callback function for IO timeout
393 * and it runs in no-sleep context. Set do_timedout_reset in Adapter context
394 * so that it will execute OCR/Kill adpter from ocr_thread context.
397 mrsas_scsiio_timeout(void *data)
399 struct mrsas_mpt_cmd *cmd;
400 struct mrsas_softc *sc;
406 cmd = (struct mrsas_mpt_cmd *)data;
409 if (cmd->ccb_ptr == NULL) {
410 printf("command timeout with NULL ccb\n");
415 * Below callout is dummy entry so that it will be cancelled from
416 * mrsas_cmd_done(). Now Controller will go to OCR/Kill Adapter based
417 * on OCR enable/disable property of Controller from ocr_thread
420 #if (__FreeBSD_version >= 1000510)
421 callout_reset_sbt(&cmd->cm_callout, SBT_1S * 180, 0,
422 mrsas_scsiio_timeout, cmd, 0);
424 callout_reset(&cmd->cm_callout, (180000 * hz) / 1000,
425 mrsas_scsiio_timeout, cmd);
428 if (cmd->ccb_ptr->cpi.bus_id == 0)
429 target_id = cmd->ccb_ptr->ccb_h.target_id;
431 target_id = (cmd->ccb_ptr->ccb_h.target_id + (MRSAS_MAX_PD - 1));
433 /* Save the cmd to be processed for TM, if it is not there in the array */
434 if (sc->target_reset_pool[target_id] == NULL) {
435 sc->target_reset_pool[target_id] = cmd;
436 mrsas_atomic_inc(&sc->target_reset_outstanding);
443 * mrsas_startio: SCSI IO entry point
444 * input: Adapter instance soft state
445 * pointer to CAM Control Block
447 * This function is the SCSI IO entry point and it initiates IO processing. It
448 * copies the IO and depending if the IO is read/write or inquiry, it would
449 * call mrsas_build_ldio() or mrsas_build_dcdb(), respectively. It returns 0
450 * if the command is sent to firmware successfully, otherwise it returns 1.
453 mrsas_startio(struct mrsas_softc *sc, struct cam_sim *sim,
456 struct mrsas_mpt_cmd *cmd;
457 struct ccb_hdr *ccb_h = &(ccb->ccb_h);
458 struct ccb_scsiio *csio = &(ccb->csio);
459 MRSAS_REQUEST_DESCRIPTOR_UNION *req_desc;
462 if ((csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE &&
463 (!sc->fw_sync_cache_support)) {
464 ccb->ccb_h.status = CAM_REQ_CMP;
468 ccb_h->status |= CAM_SIM_QUEUED;
469 cmd = mrsas_get_mpt_cmd(sc);
472 ccb_h->status |= CAM_REQUEUE_REQ;
476 if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
477 if (ccb_h->flags & CAM_DIR_IN)
478 cmd->flags |= MRSAS_DIR_IN;
479 if (ccb_h->flags & CAM_DIR_OUT)
480 cmd->flags |= MRSAS_DIR_OUT;
482 cmd->flags = MRSAS_DIR_NONE; /* no data */
484 /* For FreeBSD 9.2 and higher */
485 #if (__FreeBSD_version >= 902001)
487 * XXX We don't yet support physical addresses here.
489 switch ((ccb->ccb_h.flags & CAM_DATA_MASK)) {
491 case CAM_DATA_SG_PADDR:
492 device_printf(sc->mrsas_dev, "%s: physical addresses not supported\n",
494 mrsas_release_mpt_cmd(cmd);
495 ccb_h->status = CAM_REQ_INVALID;
496 ccb_h->status &= ~CAM_SIM_QUEUED;
499 device_printf(sc->mrsas_dev, "%s: scatter gather is not supported\n",
501 mrsas_release_mpt_cmd(cmd);
502 ccb_h->status = CAM_REQ_INVALID;
505 if (csio->dxfer_len > (sc->max_num_sge * MRSAS_PAGE_SIZE)) {
506 mrsas_release_mpt_cmd(cmd);
507 ccb_h->status = CAM_REQ_TOO_BIG;
510 cmd->length = csio->dxfer_len;
512 cmd->data = csio->data_ptr;
515 if (csio->dxfer_len > (sc->max_num_sge * MRSAS_PAGE_SIZE)) {
516 mrsas_release_mpt_cmd(cmd);
517 ccb_h->status = CAM_REQ_TOO_BIG;
520 cmd->length = csio->dxfer_len;
522 cmd->data = csio->data_ptr;
525 ccb->ccb_h.status = CAM_REQ_INVALID;
529 if (!(ccb_h->flags & CAM_DATA_PHYS)) { /* Virtual data address */
530 if (!(ccb_h->flags & CAM_SCATTER_VALID)) {
531 if (csio->dxfer_len > (sc->max_num_sge * MRSAS_PAGE_SIZE)) {
532 mrsas_release_mpt_cmd(cmd);
533 ccb_h->status = CAM_REQ_TOO_BIG;
536 cmd->length = csio->dxfer_len;
538 cmd->data = csio->data_ptr;
540 mrsas_release_mpt_cmd(cmd);
541 ccb_h->status = CAM_REQ_INVALID;
544 } else { /* Data addresses are physical. */
545 mrsas_release_mpt_cmd(cmd);
546 ccb_h->status = CAM_REQ_INVALID;
547 ccb_h->status &= ~CAM_SIM_QUEUED;
554 req_desc = mrsas_get_request_desc(sc, (cmd->index) - 1);
556 device_printf(sc->mrsas_dev, "Cannot get request_descriptor.\n");
559 memset(req_desc, 0, sizeof(MRSAS_REQUEST_DESCRIPTOR_UNION));
560 cmd->request_desc = req_desc;
562 if (ccb_h->flags & CAM_CDB_POINTER)
563 bcopy(csio->cdb_io.cdb_ptr, cmd->io_request->CDB.CDB32, csio->cdb_len);
565 bcopy(csio->cdb_io.cdb_bytes, cmd->io_request->CDB.CDB32, csio->cdb_len);
566 mtx_lock(&sc->raidmap_lock);
568 /* Check for IO type READ-WRITE targeted for Logical Volume */
569 cmd_type = mrsas_find_io_type(sim, ccb);
571 case READ_WRITE_LDIO:
572 /* Build READ-WRITE IO for Logical Volume */
573 if (mrsas_build_ldio_rw(sc, cmd, ccb)) {
574 device_printf(sc->mrsas_dev, "Build RW LDIO failed.\n");
575 mtx_unlock(&sc->raidmap_lock);
579 case NON_READ_WRITE_LDIO:
580 /* Build NON READ-WRITE IO for Logical Volume */
581 if (mrsas_build_ldio_nonrw(sc, cmd, ccb)) {
582 device_printf(sc->mrsas_dev, "Build NON-RW LDIO failed.\n");
583 mtx_unlock(&sc->raidmap_lock);
587 case READ_WRITE_SYSPDIO:
588 case NON_READ_WRITE_SYSPDIO:
589 if (sc->secure_jbod_support &&
590 (cmd_type == NON_READ_WRITE_SYSPDIO)) {
591 /* Build NON-RW IO for JBOD */
592 if (mrsas_build_syspdio(sc, cmd, ccb, sim, 0)) {
593 device_printf(sc->mrsas_dev,
594 "Build SYSPDIO failed.\n");
595 mtx_unlock(&sc->raidmap_lock);
599 /* Build RW IO for JBOD */
600 if (mrsas_build_syspdio(sc, cmd, ccb, sim, 1)) {
601 device_printf(sc->mrsas_dev,
602 "Build SYSPDIO failed.\n");
603 mtx_unlock(&sc->raidmap_lock);
608 mtx_unlock(&sc->raidmap_lock);
610 if (cmd->flags == MRSAS_DIR_IN) /* from device */
611 cmd->io_request->Control |= MPI2_SCSIIO_CONTROL_READ;
612 else if (cmd->flags == MRSAS_DIR_OUT) /* to device */
613 cmd->io_request->Control |= MPI2_SCSIIO_CONTROL_WRITE;
615 cmd->io_request->SGLFlags = MPI2_SGE_FLAGS_64_BIT_ADDRESSING;
616 cmd->io_request->SGLOffset0 = offsetof(MRSAS_RAID_SCSI_IO_REQUEST, SGL) / 4;
617 cmd->io_request->SenseBufferLowAddress = cmd->sense_phys_addr;
618 cmd->io_request->SenseBufferLength = MRSAS_SCSI_SENSE_BUFFERSIZE;
620 req_desc = cmd->request_desc;
621 req_desc->SCSIIO.SMID = cmd->index;
624 * Start timer for IO timeout. Default timeout value is 90 second.
626 #if (__FreeBSD_version >= 1000510)
627 callout_reset_sbt(&cmd->cm_callout, SBT_1S * 180, 0,
628 mrsas_scsiio_timeout, cmd, 0);
630 callout_reset(&cmd->cm_callout, (180000 * hz) / 1000,
631 mrsas_scsiio_timeout, cmd);
633 mrsas_atomic_inc(&sc->fw_outstanding);
635 if (mrsas_atomic_read(&sc->fw_outstanding) > sc->io_cmds_highwater)
636 sc->io_cmds_highwater++;
638 mrsas_fire_cmd(sc, req_desc->addr.u.low, req_desc->addr.u.high);
647 * mrsas_find_io_type: Determines if IO is read/write or inquiry
648 * input: pointer to CAM Control Block
650 * This function determines if the IO is read/write or inquiry. It returns a 1
651 * if the IO is read/write and 0 if it is inquiry.
654 mrsas_find_io_type(struct cam_sim *sim, union ccb *ccb)
656 struct ccb_scsiio *csio = &(ccb->csio);
658 switch (csio->cdb_io.cdb_bytes[0]) {
667 return (cam_sim_bus(sim) ?
668 READ_WRITE_SYSPDIO : READ_WRITE_LDIO);
670 return (cam_sim_bus(sim) ?
671 NON_READ_WRITE_SYSPDIO : NON_READ_WRITE_LDIO);
676 * mrsas_get_mpt_cmd: Get a cmd from free command pool
677 * input: Adapter instance soft state
679 * This function removes an MPT command from the command free list and
682 struct mrsas_mpt_cmd *
683 mrsas_get_mpt_cmd(struct mrsas_softc *sc)
685 struct mrsas_mpt_cmd *cmd = NULL;
687 mtx_lock(&sc->mpt_cmd_pool_lock);
688 if (!TAILQ_EMPTY(&sc->mrsas_mpt_cmd_list_head)) {
689 cmd = TAILQ_FIRST(&sc->mrsas_mpt_cmd_list_head);
690 TAILQ_REMOVE(&sc->mrsas_mpt_cmd_list_head, cmd, next);
695 memset((uint8_t *)cmd->io_request, 0, MRSAS_MPI2_RAID_DEFAULT_IO_FRAME_SIZE);
700 cmd->load_balance = 0;
704 mtx_unlock(&sc->mpt_cmd_pool_lock);
709 * mrsas_release_mpt_cmd: Return a cmd to free command pool
710 * input: Command packet for return to free command pool
712 * This function returns an MPT command to the free command list.
715 mrsas_release_mpt_cmd(struct mrsas_mpt_cmd *cmd)
717 struct mrsas_softc *sc = cmd->sc;
719 mtx_lock(&sc->mpt_cmd_pool_lock);
720 cmd->sync_cmd_idx = (u_int32_t)MRSAS_ULONG_MAX;
721 TAILQ_INSERT_HEAD(&(sc->mrsas_mpt_cmd_list_head), cmd, next);
722 mtx_unlock(&sc->mpt_cmd_pool_lock);
728 * mrsas_get_request_desc: Get request descriptor from array
729 * input: Adapter instance soft state
732 * This function returns a pointer to the request descriptor.
734 MRSAS_REQUEST_DESCRIPTOR_UNION *
735 mrsas_get_request_desc(struct mrsas_softc *sc, u_int16_t index)
739 if (index >= sc->max_fw_cmds) {
740 device_printf(sc->mrsas_dev, "Invalid SMID (0x%x)request for desc\n", index);
743 p = sc->req_desc + sizeof(MRSAS_REQUEST_DESCRIPTOR_UNION) * index;
745 return (MRSAS_REQUEST_DESCRIPTOR_UNION *) p;
749 * mrsas_build_ldio_rw: Builds an LDIO command
750 * input: Adapter instance soft state
751 * Pointer to command packet
754 * This function builds the LDIO command packet. It returns 0 if the command is
755 * built successfully, otherwise it returns a 1.
758 mrsas_build_ldio_rw(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
761 struct ccb_hdr *ccb_h = &(ccb->ccb_h);
762 struct ccb_scsiio *csio = &(ccb->csio);
764 MRSAS_RAID_SCSI_IO_REQUEST *io_request;
766 device_id = ccb_h->target_id;
768 io_request = cmd->io_request;
769 io_request->RaidContext.VirtualDiskTgtId = device_id;
770 io_request->RaidContext.status = 0;
771 io_request->RaidContext.exStatus = 0;
773 /* just the cdb len, other flags zero, and ORed-in later for FP */
774 io_request->IoFlags = csio->cdb_len;
776 if (mrsas_setup_io(sc, cmd, ccb, device_id, io_request) != SUCCESS)
777 device_printf(sc->mrsas_dev, "Build ldio or fpio error\n");
779 io_request->DataLength = cmd->length;
781 if (mrsas_map_request(sc, cmd, ccb) == SUCCESS) {
782 if (cmd->sge_count > sc->max_num_sge) {
783 device_printf(sc->mrsas_dev, "Error: sge_count (0x%x) exceeds"
784 "max (0x%x) allowed\n", cmd->sge_count, sc->max_num_sge);
788 * numSGE store lower 8 bit of sge_count. numSGEExt store
789 * higher 8 bit of sge_count
791 io_request->RaidContext.numSGE = cmd->sge_count;
792 io_request->RaidContext.numSGEExt = (uint8_t)(cmd->sge_count >> 8);
795 device_printf(sc->mrsas_dev, "Data map/load failed.\n");
802 * mrsas_setup_io: Set up data including Fast Path I/O
803 * input: Adapter instance soft state
804 * Pointer to command packet
807 * This function builds the DCDB inquiry command. It returns 0 if the command
808 * is built successfully, otherwise it returns a 1.
811 mrsas_setup_io(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
812 union ccb *ccb, u_int32_t device_id,
813 MRSAS_RAID_SCSI_IO_REQUEST * io_request)
815 struct ccb_hdr *ccb_h = &(ccb->ccb_h);
816 struct ccb_scsiio *csio = &(ccb->csio);
817 struct IO_REQUEST_INFO io_info;
818 MR_DRV_RAID_MAP_ALL *map_ptr;
820 u_int8_t fp_possible;
821 u_int32_t start_lba_hi, start_lba_lo, ld_block_size, ld;
822 u_int32_t datalength = 0;
829 * READ_6 (0x08) or WRITE_6 (0x0A) cdb
831 if (csio->cdb_len == 6) {
832 datalength = (u_int32_t)csio->cdb_io.cdb_bytes[4];
833 start_lba_lo = ((u_int32_t)csio->cdb_io.cdb_bytes[1] << 16) |
834 ((u_int32_t)csio->cdb_io.cdb_bytes[2] << 8) |
835 (u_int32_t)csio->cdb_io.cdb_bytes[3];
836 start_lba_lo &= 0x1FFFFF;
839 * READ_10 (0x28) or WRITE_6 (0x2A) cdb
841 else if (csio->cdb_len == 10) {
842 datalength = (u_int32_t)csio->cdb_io.cdb_bytes[8] |
843 ((u_int32_t)csio->cdb_io.cdb_bytes[7] << 8);
844 start_lba_lo = ((u_int32_t)csio->cdb_io.cdb_bytes[2] << 24) |
845 ((u_int32_t)csio->cdb_io.cdb_bytes[3] << 16) |
846 (u_int32_t)csio->cdb_io.cdb_bytes[4] << 8 |
847 ((u_int32_t)csio->cdb_io.cdb_bytes[5]);
850 * READ_12 (0xA8) or WRITE_12 (0xAA) cdb
852 else if (csio->cdb_len == 12) {
853 datalength = (u_int32_t)csio->cdb_io.cdb_bytes[6] << 24 |
854 ((u_int32_t)csio->cdb_io.cdb_bytes[7] << 16) |
855 ((u_int32_t)csio->cdb_io.cdb_bytes[8] << 8) |
856 ((u_int32_t)csio->cdb_io.cdb_bytes[9]);
857 start_lba_lo = ((u_int32_t)csio->cdb_io.cdb_bytes[2] << 24) |
858 ((u_int32_t)csio->cdb_io.cdb_bytes[3] << 16) |
859 (u_int32_t)csio->cdb_io.cdb_bytes[4] << 8 |
860 ((u_int32_t)csio->cdb_io.cdb_bytes[5]);
863 * READ_16 (0x88) or WRITE_16 (0xx8A) cdb
865 else if (csio->cdb_len == 16) {
866 datalength = (u_int32_t)csio->cdb_io.cdb_bytes[10] << 24 |
867 ((u_int32_t)csio->cdb_io.cdb_bytes[11] << 16) |
868 ((u_int32_t)csio->cdb_io.cdb_bytes[12] << 8) |
869 ((u_int32_t)csio->cdb_io.cdb_bytes[13]);
870 start_lba_lo = ((u_int32_t)csio->cdb_io.cdb_bytes[6] << 24) |
871 ((u_int32_t)csio->cdb_io.cdb_bytes[7] << 16) |
872 (u_int32_t)csio->cdb_io.cdb_bytes[8] << 8 |
873 ((u_int32_t)csio->cdb_io.cdb_bytes[9]);
874 start_lba_hi = ((u_int32_t)csio->cdb_io.cdb_bytes[2] << 24) |
875 ((u_int32_t)csio->cdb_io.cdb_bytes[3] << 16) |
876 (u_int32_t)csio->cdb_io.cdb_bytes[4] << 8 |
877 ((u_int32_t)csio->cdb_io.cdb_bytes[5]);
879 memset(&io_info, 0, sizeof(struct IO_REQUEST_INFO));
880 io_info.ldStartBlock = ((u_int64_t)start_lba_hi << 32) | start_lba_lo;
881 io_info.numBlocks = datalength;
882 io_info.ldTgtId = device_id;
884 switch (ccb_h->flags & CAM_DIR_MASK) {
893 mrsas_dprint(sc, MRSAS_TRACE, "From %s : DMA Flag is %d \n", __func__, ccb_h->flags & CAM_DIR_MASK);
897 map_ptr = sc->ld_drv_map[(sc->map_id & 1)];
898 ld_block_size = MR_LdBlockSizeGet(device_id, map_ptr, sc);
900 ld = MR_TargetIdToLdGet(device_id, map_ptr);
901 if ((ld >= MAX_LOGICAL_DRIVES_EXT) || (!sc->fast_path_io)) {
902 io_request->RaidContext.regLockFlags = 0;
905 if (MR_BuildRaidContext(sc, &io_info, &io_request->RaidContext, map_ptr))
906 fp_possible = io_info.fpOkForIo;
909 raid = MR_LdRaidGet(ld, map_ptr);
910 /* Store the TM capability value in cmd */
911 cmd->tmCapable = raid->capability.tmCapable;
913 cmd->request_desc->SCSIIO.MSIxIndex =
914 sc->msix_vectors ? smp_processor_id() % sc->msix_vectors : 0;
918 mrsas_set_pd_lba(io_request, csio->cdb_len, &io_info, ccb, map_ptr,
919 start_lba_lo, ld_block_size);
920 io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
921 cmd->request_desc->SCSIIO.RequestFlags =
922 (MPI2_REQ_DESCRIPT_FLAGS_FP_IO <<
923 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
924 if (sc->mrsas_gen3_ctrl) {
925 if (io_request->RaidContext.regLockFlags == REGION_TYPE_UNUSED)
926 cmd->request_desc->SCSIIO.RequestFlags =
927 (MRSAS_REQ_DESCRIPT_FLAGS_NO_LOCK <<
928 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
929 io_request->RaidContext.Type = MPI2_TYPE_CUDA;
930 io_request->RaidContext.nseg = 0x1;
931 io_request->IoFlags |= MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH;
932 io_request->RaidContext.regLockFlags |=
933 (MR_RL_FLAGS_GRANT_DESTINATION_CUDA |
934 MR_RL_FLAGS_SEQ_NUM_ENABLE);
936 if ((sc->load_balance_info[device_id].loadBalanceFlag) &&
939 mrsas_get_updated_dev_handle(sc,
940 &sc->load_balance_info[device_id], &io_info);
941 cmd->load_balance = MRSAS_LOAD_BALANCE_FLAG;
942 cmd->pd_r1_lb = io_info.pd_after_lb;
944 cmd->load_balance = 0;
945 cmd->request_desc->SCSIIO.DevHandle = io_info.devHandle;
946 io_request->DevHandle = io_info.devHandle;
949 io_request->RaidContext.timeoutValue = map_ptr->raidMap.fpPdIoTimeoutSec;
950 cmd->request_desc->SCSIIO.RequestFlags =
951 (MRSAS_REQ_DESCRIPT_FLAGS_LD_IO <<
952 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
953 if (sc->mrsas_gen3_ctrl) {
954 if (io_request->RaidContext.regLockFlags == REGION_TYPE_UNUSED)
955 cmd->request_desc->SCSIIO.RequestFlags =
956 (MRSAS_REQ_DESCRIPT_FLAGS_NO_LOCK <<
957 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
958 io_request->RaidContext.Type = MPI2_TYPE_CUDA;
959 io_request->RaidContext.regLockFlags |=
960 (MR_RL_FLAGS_GRANT_DESTINATION_CPU0 |
961 MR_RL_FLAGS_SEQ_NUM_ENABLE);
962 io_request->RaidContext.nseg = 0x1;
964 io_request->Function = MRSAS_MPI2_FUNCTION_LD_IO_REQUEST;
965 io_request->DevHandle = device_id;
971 * mrsas_build_ldio_nonrw: Builds an LDIO command
972 * input: Adapter instance soft state
973 * Pointer to command packet
976 * This function builds the LDIO command packet. It returns 0 if the command is
977 * built successfully, otherwise it returns a 1.
980 mrsas_build_ldio_nonrw(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
983 struct ccb_hdr *ccb_h = &(ccb->ccb_h);
984 u_int32_t device_id, ld;
985 MR_DRV_RAID_MAP_ALL *map_ptr;
987 MRSAS_RAID_SCSI_IO_REQUEST *io_request;
989 io_request = cmd->io_request;
990 device_id = ccb_h->target_id;
992 map_ptr = sc->ld_drv_map[(sc->map_id & 1)];
993 ld = MR_TargetIdToLdGet(device_id, map_ptr);
994 raid = MR_LdRaidGet(ld, map_ptr);
995 /* Store the TM capability value in cmd */
996 cmd->tmCapable = raid->capability.tmCapable;
998 /* FW path for LD Non-RW (SCSI management commands) */
999 io_request->Function = MRSAS_MPI2_FUNCTION_LD_IO_REQUEST;
1000 io_request->DevHandle = device_id;
1001 cmd->request_desc->SCSIIO.RequestFlags =
1002 (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO <<
1003 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
1005 io_request->RaidContext.VirtualDiskTgtId = device_id;
1006 io_request->LUN[1] = ccb_h->target_lun & 0xF;
1007 io_request->DataLength = cmd->length;
1009 if (mrsas_map_request(sc, cmd, ccb) == SUCCESS) {
1010 if (cmd->sge_count > sc->max_num_sge) {
1011 device_printf(sc->mrsas_dev, "Error: sge_count (0x%x) exceeds"
1012 "max (0x%x) allowed\n", cmd->sge_count, sc->max_num_sge);
1016 * numSGE store lower 8 bit of sge_count. numSGEExt store
1017 * higher 8 bit of sge_count
1019 io_request->RaidContext.numSGE = cmd->sge_count;
1020 io_request->RaidContext.numSGEExt = (uint8_t)(cmd->sge_count >> 8);
1022 device_printf(sc->mrsas_dev, "Data map/load failed.\n");
1029 * mrsas_build_syspdio: Builds an DCDB command
1030 * input: Adapter instance soft state
1031 * Pointer to command packet
1034 * This function builds the DCDB inquiry command. It returns 0 if the command
1035 * is built successfully, otherwise it returns a 1.
1038 mrsas_build_syspdio(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
1039 union ccb *ccb, struct cam_sim *sim, u_int8_t fp_possible)
1041 struct ccb_hdr *ccb_h = &(ccb->ccb_h);
1042 u_int32_t device_id;
1043 MR_DRV_RAID_MAP_ALL *local_map_ptr;
1044 MRSAS_RAID_SCSI_IO_REQUEST *io_request;
1045 struct MR_PD_CFG_SEQ_NUM_SYNC *pd_sync;
1047 io_request = cmd->io_request;
1048 device_id = ccb_h->target_id;
1049 local_map_ptr = sc->ld_drv_map[(sc->map_id & 1)];
1050 io_request->RaidContext.RAIDFlags = MR_RAID_FLAGS_IO_SUB_TYPE_SYSTEM_PD
1051 << MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_SHIFT;
1052 io_request->RaidContext.regLockFlags = 0;
1053 io_request->RaidContext.regLockRowLBA = 0;
1054 io_request->RaidContext.regLockLength = 0;
1056 /* If FW supports PD sequence number */
1057 if (sc->use_seqnum_jbod_fp &&
1058 sc->pd_list[device_id].driveType == 0x00) {
1059 //printf("Using Drv seq num\n");
1060 pd_sync = (void *)sc->jbodmap_mem[(sc->pd_seq_map_id - 1) & 1];
1061 cmd->tmCapable = pd_sync->seq[device_id].capability.tmCapable;
1062 io_request->RaidContext.VirtualDiskTgtId = device_id + 255;
1063 io_request->RaidContext.configSeqNum = pd_sync->seq[device_id].seqNum;
1064 io_request->DevHandle = pd_sync->seq[device_id].devHandle;
1065 io_request->RaidContext.regLockFlags |=
1066 (MR_RL_FLAGS_SEQ_NUM_ENABLE | MR_RL_FLAGS_GRANT_DESTINATION_CUDA);
1067 io_request->RaidContext.Type = MPI2_TYPE_CUDA;
1068 io_request->RaidContext.nseg = 0x1;
1069 } else if (sc->fast_path_io) {
1070 //printf("Using LD RAID map\n");
1071 io_request->RaidContext.VirtualDiskTgtId = device_id;
1072 io_request->RaidContext.configSeqNum = 0;
1073 local_map_ptr = sc->ld_drv_map[(sc->map_id & 1)];
1074 io_request->DevHandle =
1075 local_map_ptr->raidMap.devHndlInfo[device_id].curDevHdl;
1077 //printf("Using FW PATH\n");
1078 /* Want to send all IO via FW path */
1079 io_request->RaidContext.VirtualDiskTgtId = device_id;
1080 io_request->RaidContext.configSeqNum = 0;
1081 io_request->DevHandle = 0xFFFF;
1084 cmd->request_desc->SCSIIO.DevHandle = io_request->DevHandle;
1085 cmd->request_desc->SCSIIO.MSIxIndex =
1086 sc->msix_vectors ? smp_processor_id() % sc->msix_vectors : 0;
1089 /* system pd firmware path */
1090 io_request->Function = MRSAS_MPI2_FUNCTION_LD_IO_REQUEST;
1091 cmd->request_desc->SCSIIO.RequestFlags =
1092 (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO <<
1093 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
1094 io_request->RaidContext.timeoutValue =
1095 local_map_ptr->raidMap.fpPdIoTimeoutSec;
1096 io_request->RaidContext.VirtualDiskTgtId = device_id;
1098 /* system pd fast path */
1099 io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
1100 io_request->RaidContext.timeoutValue = local_map_ptr->raidMap.fpPdIoTimeoutSec;
1103 * NOTE - For system pd RW cmds only IoFlags will be FAST_PATH
1104 * Because the NON RW cmds will now go via FW Queue
1105 * and not the Exception queue
1107 io_request->IoFlags |= MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH;
1109 cmd->request_desc->SCSIIO.RequestFlags =
1110 (MPI2_REQ_DESCRIPT_FLAGS_FP_IO <<
1111 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
1114 io_request->LUN[1] = ccb_h->target_lun & 0xF;
1115 io_request->DataLength = cmd->length;
1117 if (mrsas_map_request(sc, cmd, ccb) == SUCCESS) {
1118 if (cmd->sge_count > sc->max_num_sge) {
1119 device_printf(sc->mrsas_dev, "Error: sge_count (0x%x) exceeds"
1120 "max (0x%x) allowed\n", cmd->sge_count, sc->max_num_sge);
1124 * numSGE store lower 8 bit of sge_count. numSGEExt store
1125 * higher 8 bit of sge_count
1127 io_request->RaidContext.numSGE = cmd->sge_count;
1128 io_request->RaidContext.numSGEExt = (uint8_t)(cmd->sge_count >> 8);
1130 device_printf(sc->mrsas_dev, "Data map/load failed.\n");
1137 * mrsas_map_request: Map and load data
1138 * input: Adapter instance soft state
1139 * Pointer to command packet
1141 * For data from OS, map and load the data buffer into bus space. The SG list
1142 * is built in the callback. If the bus dmamap load is not successful,
1143 * cmd->error_code will contain the error code and a 1 is returned.
1146 mrsas_map_request(struct mrsas_softc *sc,
1147 struct mrsas_mpt_cmd *cmd, union ccb *ccb)
1149 u_int32_t retcode = 0;
1150 struct cam_sim *sim;
1152 sim = xpt_path_sim(cmd->ccb_ptr->ccb_h.path);
1154 if (cmd->data != NULL) {
1155 /* Map data buffer into bus space */
1156 mtx_lock(&sc->io_lock);
1157 #if (__FreeBSD_version >= 902001)
1158 retcode = bus_dmamap_load_ccb(sc->data_tag, cmd->data_dmamap, ccb,
1159 mrsas_data_load_cb, cmd, 0);
1161 retcode = bus_dmamap_load(sc->data_tag, cmd->data_dmamap, cmd->data,
1162 cmd->length, mrsas_data_load_cb, cmd, BUS_DMA_NOWAIT);
1164 mtx_unlock(&sc->io_lock);
1166 device_printf(sc->mrsas_dev, "bus_dmamap_load(): retcode = %d\n", retcode);
1167 if (retcode == EINPROGRESS) {
1168 device_printf(sc->mrsas_dev, "request load in progress\n");
1169 mrsas_freeze_simq(cmd, sim);
1172 if (cmd->error_code)
1178 * mrsas_unmap_request: Unmap and unload data
1179 * input: Adapter instance soft state
1180 * Pointer to command packet
1182 * This function unmaps and unloads data from OS.
1185 mrsas_unmap_request(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd)
1187 if (cmd->data != NULL) {
1188 if (cmd->flags & MRSAS_DIR_IN)
1189 bus_dmamap_sync(sc->data_tag, cmd->data_dmamap, BUS_DMASYNC_POSTREAD);
1190 if (cmd->flags & MRSAS_DIR_OUT)
1191 bus_dmamap_sync(sc->data_tag, cmd->data_dmamap, BUS_DMASYNC_POSTWRITE);
1192 mtx_lock(&sc->io_lock);
1193 bus_dmamap_unload(sc->data_tag, cmd->data_dmamap);
1194 mtx_unlock(&sc->io_lock);
1199 * mrsas_data_load_cb: Callback entry point
1200 * input: Pointer to command packet as argument
1201 * Pointer to segment
1202 * Number of segments Error
1204 * This is the callback function of the bus dma map load. It builds the SG
1208 mrsas_data_load_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1210 struct mrsas_mpt_cmd *cmd = (struct mrsas_mpt_cmd *)arg;
1211 struct mrsas_softc *sc = cmd->sc;
1212 MRSAS_RAID_SCSI_IO_REQUEST *io_request;
1213 pMpi25IeeeSgeChain64_t sgl_ptr;
1214 int i = 0, sg_processed = 0;
1217 cmd->error_code = error;
1218 device_printf(sc->mrsas_dev, "mrsas_data_load_cb: error=%d\n", error);
1219 if (error == EFBIG) {
1220 cmd->ccb_ptr->ccb_h.status = CAM_REQ_TOO_BIG;
1224 if (cmd->flags & MRSAS_DIR_IN)
1225 bus_dmamap_sync(cmd->sc->data_tag, cmd->data_dmamap,
1226 BUS_DMASYNC_PREREAD);
1227 if (cmd->flags & MRSAS_DIR_OUT)
1228 bus_dmamap_sync(cmd->sc->data_tag, cmd->data_dmamap,
1229 BUS_DMASYNC_PREWRITE);
1230 if (nseg > sc->max_num_sge) {
1231 device_printf(sc->mrsas_dev, "SGE count is too large or 0.\n");
1234 io_request = cmd->io_request;
1235 sgl_ptr = (pMpi25IeeeSgeChain64_t)&io_request->SGL;
1237 if (sc->mrsas_gen3_ctrl) {
1238 pMpi25IeeeSgeChain64_t sgl_ptr_end = sgl_ptr;
1240 sgl_ptr_end += sc->max_sge_in_main_msg - 1;
1241 sgl_ptr_end->Flags = 0;
1244 for (i = 0; i < nseg; i++) {
1245 sgl_ptr->Address = segs[i].ds_addr;
1246 sgl_ptr->Length = segs[i].ds_len;
1248 if (sc->mrsas_gen3_ctrl) {
1250 sgl_ptr->Flags = IEEE_SGE_FLAGS_END_OF_LIST;
1253 sg_processed = i + 1;
1254 if ((sg_processed == (sc->max_sge_in_main_msg - 1)) &&
1255 (nseg > sc->max_sge_in_main_msg)) {
1256 pMpi25IeeeSgeChain64_t sg_chain;
1258 if (sc->mrsas_gen3_ctrl) {
1259 if ((cmd->io_request->IoFlags & MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH)
1260 != MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH)
1261 cmd->io_request->ChainOffset = sc->chain_offset_io_request;
1263 cmd->io_request->ChainOffset = 0;
1265 cmd->io_request->ChainOffset = sc->chain_offset_io_request;
1267 if (sc->mrsas_gen3_ctrl)
1268 sg_chain->Flags = IEEE_SGE_FLAGS_CHAIN_ELEMENT;
1270 sg_chain->Flags = (IEEE_SGE_FLAGS_CHAIN_ELEMENT | MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR);
1271 sg_chain->Length = (sizeof(MPI2_SGE_IO_UNION) * (nseg - sg_processed));
1272 sg_chain->Address = cmd->chain_frame_phys_addr;
1273 sgl_ptr = (pMpi25IeeeSgeChain64_t)cmd->chain_frame;
1277 cmd->sge_count = nseg;
1281 * mrsas_freeze_simq: Freeze SIM queue
1282 * input: Pointer to command packet
1285 * This function freezes the sim queue.
1288 mrsas_freeze_simq(struct mrsas_mpt_cmd *cmd, struct cam_sim *sim)
1290 union ccb *ccb = (union ccb *)(cmd->ccb_ptr);
1292 xpt_freeze_simq(sim, 1);
1293 ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
1294 ccb->ccb_h.status |= CAM_REQUEUE_REQ;
1298 mrsas_xpt_freeze(struct mrsas_softc *sc)
1300 xpt_freeze_simq(sc->sim_0, 1);
1301 xpt_freeze_simq(sc->sim_1, 1);
1305 mrsas_xpt_release(struct mrsas_softc *sc)
1307 xpt_release_simq(sc->sim_0, 1);
1308 xpt_release_simq(sc->sim_1, 1);
1312 * mrsas_cmd_done: Perform remaining command completion
1313 * input: Adapter instance soft state Pointer to command packet
1315 * This function calls ummap request and releases the MPT command.
1318 mrsas_cmd_done(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd)
1320 mrsas_unmap_request(sc, cmd);
1322 mtx_lock(&sc->sim_lock);
1323 callout_stop(&cmd->cm_callout);
1324 xpt_done(cmd->ccb_ptr);
1325 cmd->ccb_ptr = NULL;
1326 mtx_unlock(&sc->sim_lock);
1327 mrsas_release_mpt_cmd(cmd);
1331 * mrsas_cam_poll: Polling entry point
1332 * input: Pointer to SIM
1334 * This is currently a stub function.
1337 mrsas_cam_poll(struct cam_sim *sim)
1340 struct mrsas_softc *sc = (struct mrsas_softc *)cam_sim_softc(sim);
1342 if (sc->msix_vectors != 0){
1343 for (i=0; i<sc->msix_vectors; i++){
1344 mrsas_complete_cmd(sc, i);
1347 mrsas_complete_cmd(sc, 0);
1352 * mrsas_bus_scan: Perform bus scan
1353 * input: Adapter instance soft state
1355 * This mrsas_bus_scan function is needed for FreeBSD 7.x. Also, it should not
1356 * be called in FreeBSD 8.x and later versions, where the bus scan is
1360 mrsas_bus_scan(struct mrsas_softc *sc)
1365 if ((ccb_0 = xpt_alloc_ccb()) == NULL) {
1368 if ((ccb_1 = xpt_alloc_ccb()) == NULL) {
1369 xpt_free_ccb(ccb_0);
1372 mtx_lock(&sc->sim_lock);
1373 if (xpt_create_path(&ccb_0->ccb_h.path, xpt_periph, cam_sim_path(sc->sim_0),
1374 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
1375 xpt_free_ccb(ccb_0);
1376 xpt_free_ccb(ccb_1);
1377 mtx_unlock(&sc->sim_lock);
1380 if (xpt_create_path(&ccb_1->ccb_h.path, xpt_periph, cam_sim_path(sc->sim_1),
1381 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
1382 xpt_free_ccb(ccb_0);
1383 xpt_free_ccb(ccb_1);
1384 mtx_unlock(&sc->sim_lock);
1387 mtx_unlock(&sc->sim_lock);
1395 * mrsas_bus_scan_sim: Perform bus scan per SIM
1396 * input: adapter instance soft state
1398 * This function will be called from Event handler on LD creation/deletion,
1402 mrsas_bus_scan_sim(struct mrsas_softc *sc, struct cam_sim *sim)
1406 if ((ccb = xpt_alloc_ccb()) == NULL) {
1409 mtx_lock(&sc->sim_lock);
1410 if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, cam_sim_path(sim),
1411 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
1413 mtx_unlock(&sc->sim_lock);
1416 mtx_unlock(&sc->sim_lock);
1423 * mrsas_track_scsiio: Track IOs for a given target in the mpt_cmd_list
1424 * input: Adapter instance soft state
1425 * Target ID of target
1426 * Bus ID of the target
1428 * This function checks for any pending IO in the whole mpt_cmd_list pool
1429 * with the bus_id and target_id passed in arguments. If some IO is found
1430 * that means target reset is not successfully completed.
1432 * Returns FAIL if IOs pending to the target device, else return SUCCESS
1435 mrsas_track_scsiio(struct mrsas_softc *sc, target_id_t tgt_id, u_int32_t bus_id)
1438 struct mrsas_mpt_cmd *mpt_cmd = NULL;
1440 for (i = 0 ; i < sc->max_fw_cmds; i++) {
1441 mpt_cmd = sc->mpt_cmd_list[i];
1444 * Check if the target_id and bus_id is same as the timeout IO
1446 if (mpt_cmd->ccb_ptr) {
1447 /* bus_id = 1 denotes a VD */
1449 tgt_id = (mpt_cmd->ccb_ptr->ccb_h.target_id - (MRSAS_MAX_PD - 1));
1451 if (mpt_cmd->ccb_ptr->cpi.bus_id == bus_id &&
1452 mpt_cmd->ccb_ptr->ccb_h.target_id == tgt_id) {
1453 device_printf(sc->mrsas_dev,
1454 "IO commands pending to target id %d\n", tgt_id);
1465 * mrsas_tm_response_code: Prints TM response code received from FW
1466 * input: Adapter instance soft state
1467 * MPI reply returned from firmware
1472 mrsas_tm_response_code(struct mrsas_softc *sc,
1473 MPI2_SCSI_TASK_MANAGE_REPLY *mpi_reply)
1477 switch (mpi_reply->ResponseCode) {
1478 case MPI2_SCSITASKMGMT_RSP_TM_COMPLETE:
1479 desc = "task management request completed";
1481 case MPI2_SCSITASKMGMT_RSP_INVALID_FRAME:
1482 desc = "invalid frame";
1484 case MPI2_SCSITASKMGMT_RSP_TM_NOT_SUPPORTED:
1485 desc = "task management request not supported";
1487 case MPI2_SCSITASKMGMT_RSP_TM_FAILED:
1488 desc = "task management request failed";
1490 case MPI2_SCSITASKMGMT_RSP_TM_SUCCEEDED:
1491 desc = "task management request succeeded";
1493 case MPI2_SCSITASKMGMT_RSP_TM_INVALID_LUN:
1494 desc = "invalid lun";
1497 desc = "overlapped tag attempted";
1499 case MPI2_SCSITASKMGMT_RSP_IO_QUEUED_ON_IOC:
1500 desc = "task queued, however not sent to target";
1506 device_printf(sc->mrsas_dev, "response_code(%01x): %s\n",
1507 mpi_reply->ResponseCode, desc);
1508 device_printf(sc->mrsas_dev,
1509 "TerminationCount/DevHandle/Function/TaskType/IOCStat/IOCLoginfo\n"
1510 "0x%x/0x%x/0x%x/0x%x/0x%x/0x%x\n",
1511 mpi_reply->TerminationCount, mpi_reply->DevHandle,
1512 mpi_reply->Function, mpi_reply->TaskType,
1513 mpi_reply->IOCStatus, mpi_reply->IOCLogInfo);
1518 * mrsas_issue_tm: Fires the TM command to FW and waits for completion
1519 * input: Adapter instance soft state
1520 * reqest descriptor compiled by mrsas_reset_targets
1522 * Returns FAIL if TM command TIMEDOUT from FW else SUCCESS.
1525 mrsas_issue_tm(struct mrsas_softc *sc,
1526 MRSAS_REQUEST_DESCRIPTOR_UNION *req_desc)
1530 mrsas_fire_cmd(sc, req_desc->addr.u.low, req_desc->addr.u.high);
1531 sleep_stat = msleep(&sc->ocr_chan, &sc->sim_lock, PRIBIO, "tm_sleep", 50*hz);
1533 if (sleep_stat == EWOULDBLOCK) {
1534 device_printf(sc->mrsas_dev, "tm cmd TIMEDOUT\n");
1542 * mrsas_reset_targets : Gathers info to fire a target reset command
1543 * input: Adapter instance soft state
1545 * This function compiles data for a target reset command to be fired to the FW
1546 * and then traverse the target_reset_pool to see targets with TIMEDOUT IOs.
1548 * Returns SUCCESS or FAIL
1550 int mrsas_reset_targets(struct mrsas_softc *sc)
1552 struct mrsas_mpt_cmd *tm_mpt_cmd = NULL;
1553 struct mrsas_mpt_cmd *tgt_mpt_cmd = NULL;
1554 MR_TASK_MANAGE_REQUEST *mr_request;
1555 MPI2_SCSI_TASK_MANAGE_REQUEST *tm_mpi_request;
1556 MRSAS_REQUEST_DESCRIPTOR_UNION *req_desc;
1557 int retCode = FAIL, count, i, outstanding;
1558 u_int32_t MSIxIndex, bus_id;
1561 MPI2_SCSI_TASK_MANAGE_REPLY *mpi_reply;
1564 outstanding = mrsas_atomic_read(&sc->fw_outstanding);
1567 device_printf(sc->mrsas_dev, "NO IOs pending...\n");
1568 mrsas_atomic_set(&sc->target_reset_outstanding, 0);
1571 } else if (sc->adprecovery != MRSAS_HBA_OPERATIONAL) {
1572 device_printf(sc->mrsas_dev, "Controller is not operational\n");
1575 /* Some more error checks will be added in future */
1578 /* Get an mpt frame and an index to fire the TM cmd */
1579 tm_mpt_cmd = mrsas_get_mpt_cmd(sc);
1585 req_desc = mrsas_get_request_desc(sc, (tm_mpt_cmd->index) - 1);
1587 device_printf(sc->mrsas_dev, "Cannot get request_descriptor for tm.\n");
1591 memset(req_desc, 0, sizeof(MRSAS_REQUEST_DESCRIPTOR_UNION));
1593 req_desc->HighPriority.SMID = tm_mpt_cmd->index;
1594 req_desc->HighPriority.RequestFlags =
1595 (MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY <<
1596 MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
1597 req_desc->HighPriority.MSIxIndex = 0;
1598 req_desc->HighPriority.LMID = 0;
1599 req_desc->HighPriority.Reserved1 = 0;
1600 tm_mpt_cmd->request_desc = req_desc;
1602 mr_request = (MR_TASK_MANAGE_REQUEST *) tm_mpt_cmd->io_request;
1603 memset(mr_request, 0, sizeof(MR_TASK_MANAGE_REQUEST));
1605 tm_mpi_request = (MPI2_SCSI_TASK_MANAGE_REQUEST *) &mr_request->TmRequest;
1606 tm_mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT;
1607 tm_mpi_request->TaskType = MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET;
1608 tm_mpi_request->TaskMID = 0; /* smid task */
1609 tm_mpi_request->LUN[1] = 0;
1611 /* Traverse the tm_mpt pool to get valid entries */
1612 for (i = 0 ; i < MRSAS_MAX_TM_TARGETS; i++) {
1613 if(!sc->target_reset_pool[i]) {
1616 tgt_mpt_cmd = sc->target_reset_pool[i];
1621 /* See if the target is tm capable or NOT */
1622 if (!tgt_mpt_cmd->tmCapable) {
1623 device_printf(sc->mrsas_dev, "Task management NOT SUPPORTED for "
1624 "CAM target:%d\n", tgt_id);
1630 tm_mpi_request->DevHandle = tgt_mpt_cmd->io_request->DevHandle;
1632 if (i < (MRSAS_MAX_PD - 1)) {
1633 mr_request->uTmReqReply.tmReqFlags.isTMForPD = 1;
1636 mr_request->uTmReqReply.tmReqFlags.isTMForLD = 1;
1640 device_printf(sc->mrsas_dev, "TM will be fired for "
1641 "CAM target:%d and bus_id %d\n", tgt_id, bus_id);
1643 sc->ocr_chan = (void *)&tm_mpt_cmd;
1644 retCode = mrsas_issue_tm(sc, req_desc);
1645 if (retCode == FAIL)
1650 (MPI2_SCSI_TASK_MANAGE_REPLY *) &mr_request->uTmReqReply.TMReply;
1651 mrsas_tm_response_code(sc, mpi_reply);
1653 mrsas_atomic_dec(&sc->target_reset_outstanding);
1654 sc->target_reset_pool[i] = NULL;
1656 /* Check for pending cmds in the mpt_cmd_pool with the tgt_id */
1657 mrsas_disable_intr(sc);
1658 /* Wait for 1 second to complete parallel ISR calling same
1659 * mrsas_complete_cmd()
1661 msleep(&sc->ocr_chan, &sc->sim_lock, PRIBIO, "mrsas_reset_wakeup",
1663 count = sc->msix_vectors > 0 ? sc->msix_vectors : 1;
1664 mtx_unlock(&sc->sim_lock);
1665 for (MSIxIndex = 0; MSIxIndex < count; MSIxIndex++)
1666 mrsas_complete_cmd(sc, MSIxIndex);
1667 mtx_lock(&sc->sim_lock);
1668 retCode = mrsas_track_scsiio(sc, tgt_id, bus_id);
1669 mrsas_enable_intr(sc);
1671 if (retCode == FAIL)
1675 device_printf(sc->mrsas_dev, "Number of targets outstanding "
1676 "after reset: %d\n", mrsas_atomic_read(&sc->target_reset_outstanding));
1679 mrsas_release_mpt_cmd(tm_mpt_cmd);
1681 device_printf(sc->mrsas_dev, "target reset %s!!\n",
1682 (retCode == SUCCESS) ? "SUCCESS" : "FAIL");