xref: /dflybsd-src/sys/dev/raid/mrsas/mrsas_cam.c (revision cec957e929d4fbddf545b1918d45b9eadc8268ce)
16d743f04SSascha Wildner /*
26d743f04SSascha Wildner  * Copyright (c) 2014, LSI Corp.
36d743f04SSascha Wildner  * All rights reserved.
46d743f04SSascha Wildner  * Author: Marian Choy
56d743f04SSascha Wildner  * Support: freebsdraid@lsi.com
66d743f04SSascha Wildner  *
76d743f04SSascha Wildner  * Redistribution and use in source and binary forms, with or without
86d743f04SSascha Wildner  * modification, are permitted provided that the following conditions
96d743f04SSascha Wildner  * are met:
106d743f04SSascha Wildner  *
116d743f04SSascha Wildner  * 1. Redistributions of source code must retain the above copyright
126d743f04SSascha Wildner  *    notice, this list of conditions and the following disclaimer.
136d743f04SSascha Wildner  * 2. Redistributions in binary form must reproduce the above copyright
146d743f04SSascha Wildner  *    notice, this list of conditions and the following disclaimer in
156d743f04SSascha Wildner  *    the documentation and/or other materials provided with the
166d743f04SSascha Wildner  *    distribution.
176d743f04SSascha Wildner  * 3. Neither the name of the <ORGANIZATION> nor the names of its
186d743f04SSascha Wildner  *    contributors may be used to endorse or promote products derived
196d743f04SSascha Wildner  *    from this software without specific prior written permission.
206d743f04SSascha Wildner  *
216d743f04SSascha Wildner  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
226d743f04SSascha Wildner  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
236d743f04SSascha Wildner  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
246d743f04SSascha Wildner  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
256d743f04SSascha Wildner  * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
266d743f04SSascha Wildner  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
276d743f04SSascha Wildner  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
286d743f04SSascha Wildner  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
296d743f04SSascha Wildner  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
306d743f04SSascha Wildner  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
316d743f04SSascha Wildner  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
326d743f04SSascha Wildner  * POSSIBILITY OF SUCH DAMAGE.
336d743f04SSascha Wildner  *
346d743f04SSascha Wildner  * $FreeBSD: head/sys/dev/mrsas/mrsas_cam.c 265555 2014-05-07 16:16:49Z ambrisko $
356d743f04SSascha Wildner  */
366d743f04SSascha Wildner 
376d743f04SSascha Wildner #include <dev/raid/mrsas/mrsas.h>
386d743f04SSascha Wildner 
396d743f04SSascha Wildner #include <bus/cam/cam.h>
406d743f04SSascha Wildner #include <bus/cam/cam_ccb.h>
416d743f04SSascha Wildner #include <bus/cam/cam_sim.h>
426d743f04SSascha Wildner #include <bus/cam/cam_xpt_sim.h>
436d743f04SSascha Wildner #include <bus/cam/cam_debug.h>
446d743f04SSascha Wildner #include <bus/cam/cam_periph.h>
456d743f04SSascha Wildner #include <bus/cam/cam_xpt_periph.h>
466d743f04SSascha Wildner 
476d743f04SSascha Wildner #include <bus/cam/scsi/scsi_all.h>
486d743f04SSascha Wildner #include <bus/cam/scsi/scsi_message.h>
496d743f04SSascha Wildner #include <sys/taskqueue.h>
506d743f04SSascha Wildner 
516d743f04SSascha Wildner 
526d743f04SSascha Wildner /*
536d743f04SSascha Wildner  * Function prototypes
546d743f04SSascha Wildner  */
556d743f04SSascha Wildner int mrsas_cam_attach(struct mrsas_softc *sc);
566d743f04SSascha Wildner //int mrsas_ldio_inq(union ccb *ccb);
576d743f04SSascha Wildner int mrsas_ldio_inq(struct cam_sim *sim, union ccb *ccb);
586d743f04SSascha Wildner int mrsas_bus_scan(struct mrsas_softc *sc);
596d743f04SSascha Wildner int mrsas_bus_scan_sim(struct mrsas_softc *sc, struct cam_sim *sim);
606d743f04SSascha Wildner int mrsas_map_request(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd);
616d743f04SSascha Wildner int mrsas_build_ldio(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
626d743f04SSascha Wildner                     union ccb *ccb);
636d743f04SSascha Wildner int mrsas_build_dcdb(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
646d743f04SSascha Wildner                     union ccb *ccb, struct cam_sim *sim);
656d743f04SSascha Wildner int mrsas_setup_io(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
666d743f04SSascha Wildner                     union ccb *ccb, u_int32_t device_id,
676d743f04SSascha Wildner                     MRSAS_RAID_SCSI_IO_REQUEST *io_request);
686d743f04SSascha Wildner void mrsas_xpt_freeze(struct mrsas_softc *sc);
696d743f04SSascha Wildner void mrsas_xpt_release(struct mrsas_softc *sc);
706d743f04SSascha Wildner void mrsas_cam_detach(struct mrsas_softc *sc);
716d743f04SSascha Wildner void mrsas_release_mpt_cmd(struct mrsas_mpt_cmd *cmd);
726d743f04SSascha Wildner void mrsas_unmap_request(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd);
736d743f04SSascha Wildner void mrsas_cmd_done(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd);
746d743f04SSascha Wildner void mrsas_fire_cmd(struct mrsas_softc *sc, u_int32_t req_desc_lo,
756d743f04SSascha Wildner                     u_int32_t req_desc_hi);
766d743f04SSascha Wildner void mrsas_set_pd_lba(MRSAS_RAID_SCSI_IO_REQUEST *io_request, u_int8_t cdb_len,
776d743f04SSascha Wildner                     struct IO_REQUEST_INFO *io_info, union ccb *ccb,
786d743f04SSascha Wildner                     MR_FW_RAID_MAP_ALL *local_map_ptr, u_int32_t ref_tag,
796d743f04SSascha Wildner                     u_int32_t ld_block_size);
806d743f04SSascha Wildner static void mrsas_freeze_simq(struct mrsas_mpt_cmd *cmd, struct cam_sim *sim);
816d743f04SSascha Wildner static void mrsas_poll(struct cam_sim *sim);
826d743f04SSascha Wildner static void mrsas_action(struct cam_sim *sim, union ccb *ccb);
836d743f04SSascha Wildner static void mrsas_scsiio_timeout(void *data);
846d743f04SSascha Wildner static void mrsas_data_load_cb(void *arg, bus_dma_segment_t *segs,
856d743f04SSascha Wildner                     int nseg, int error);
866d743f04SSascha Wildner static int32_t mrsas_startio(struct mrsas_softc *sc, struct cam_sim *sim,
876d743f04SSascha Wildner                     union ccb *ccb);
886d743f04SSascha Wildner static void mrsas_rescan_callback(struct cam_periph *, union ccb *);
896d743f04SSascha Wildner struct mrsas_mpt_cmd * mrsas_get_mpt_cmd(struct mrsas_softc *sc);
906d743f04SSascha Wildner MRSAS_REQUEST_DESCRIPTOR_UNION *mrsas_get_request_desc(struct mrsas_softc *sc,
916d743f04SSascha Wildner                     u_int16_t index);
926d743f04SSascha Wildner 
936d743f04SSascha Wildner extern u_int16_t MR_TargetIdToLdGet(u_int32_t ldTgtId, MR_FW_RAID_MAP_ALL *map);
94c482292fSSascha Wildner extern u_int32_t MR_LdBlockSizeGet(u_int32_t ldTgtId, MR_FW_RAID_MAP_ALL *map);
956d743f04SSascha Wildner extern void mrsas_isr(void *arg);
966d743f04SSascha Wildner extern void mrsas_aen_handler(struct mrsas_softc *sc);
976d743f04SSascha Wildner extern u_int8_t MR_BuildRaidContext(struct mrsas_softc *sc,
986d743f04SSascha Wildner         struct IO_REQUEST_INFO *io_info,RAID_CONTEXT *pRAID_Context,
996d743f04SSascha Wildner         MR_FW_RAID_MAP_ALL *map);
1006d743f04SSascha Wildner extern u_int16_t MR_LdSpanArrayGet(u_int32_t ld, u_int32_t span,
1016d743f04SSascha Wildner         MR_FW_RAID_MAP_ALL *map);
1026d743f04SSascha Wildner extern u_int16_t mrsas_get_updated_dev_handle(PLD_LOAD_BALANCE_INFO lbInfo,
1036d743f04SSascha Wildner         struct IO_REQUEST_INFO *io_info);
1046d743f04SSascha Wildner extern u_int8_t megasas_get_best_arm(PLD_LOAD_BALANCE_INFO lbInfo, u_int8_t arm,
1056d743f04SSascha Wildner        u_int64_t block, u_int32_t count);
1066d743f04SSascha Wildner 
1076d743f04SSascha Wildner 
1086d743f04SSascha Wildner /**
1096d743f04SSascha Wildner  * mrsas_cam_attach:        Main entry to CAM subsystem
1106d743f04SSascha Wildner  * input:                   Adapter instance soft state
1116d743f04SSascha Wildner  *
1126d743f04SSascha Wildner  * This function is called from mrsas_attach() during initialization
1136d743f04SSascha Wildner  * to perform SIM allocations and XPT bus registration.  If the kernel
1146d743f04SSascha Wildner  * version is 7.4 or earlier, it would also initiate a bus scan.
1156d743f04SSascha Wildner  */
mrsas_cam_attach(struct mrsas_softc * sc)1166d743f04SSascha Wildner int mrsas_cam_attach(struct mrsas_softc *sc)
1176d743f04SSascha Wildner {
1186d743f04SSascha Wildner     struct cam_devq *devq;
1196d743f04SSascha Wildner     int mrsas_cam_depth;
1206d743f04SSascha Wildner 
1216d743f04SSascha Wildner     mrsas_cam_depth = sc->max_fw_cmds - MRSAS_INTERNAL_CMDS;
1226d743f04SSascha Wildner 
1236d743f04SSascha Wildner     if ((devq = cam_simq_alloc(mrsas_cam_depth)) == NULL) {
1246d743f04SSascha Wildner         device_printf(sc->mrsas_dev, "Cannot allocate SIM queue\n");
1256d743f04SSascha Wildner         return(ENOMEM);
1266d743f04SSascha Wildner     }
1276d743f04SSascha Wildner 
1286d743f04SSascha Wildner 
1296d743f04SSascha Wildner     /*
1306d743f04SSascha Wildner      * Create SIM for bus 0 and register, also create path
1316d743f04SSascha Wildner      */
1326d743f04SSascha Wildner     sc->sim_0 = cam_sim_alloc(mrsas_action, mrsas_poll, "mrsas", sc,
1336d743f04SSascha Wildner         device_get_unit(sc->mrsas_dev), &sc->sim_lock, mrsas_cam_depth,
1346d743f04SSascha Wildner         mrsas_cam_depth, devq);
1356d743f04SSascha Wildner     if (sc->sim_0 == NULL){
1366d743f04SSascha Wildner         device_printf(sc->mrsas_dev, "Cannot register SIM\n");
1376d743f04SSascha Wildner         cam_simq_release(devq);
1386d743f04SSascha Wildner         return(ENXIO);
1396d743f04SSascha Wildner     }
1406d743f04SSascha Wildner     /* Initialize taskqueue for Event Handling */
1416d743f04SSascha Wildner     TASK_INIT(&sc->ev_task, 0, (void *)mrsas_aen_handler, sc);
1426d743f04SSascha Wildner     sc->ev_tq = taskqueue_create("mrsas_taskq", M_NOWAIT | M_ZERO,
1436d743f04SSascha Wildner         taskqueue_thread_enqueue, &sc->ev_tq);
1446d743f04SSascha Wildner 
1456d743f04SSascha Wildner     /* Run the task queue with lowest priority */
146acb1fe1aSMatthew Dillon     taskqueue_start_threads(&sc->ev_tq, 1, TDPRI_KERN_DAEMON,
147acb1fe1aSMatthew Dillon 			    -1, "%s taskq",
1486d743f04SSascha Wildner         device_get_nameunit(sc->mrsas_dev));
1496d743f04SSascha Wildner     lockmgr(&sc->sim_lock, LK_EXCLUSIVE);
1506d743f04SSascha Wildner     if (xpt_bus_register(sc->sim_0, 0) != CAM_SUCCESS)
1516d743f04SSascha Wildner     {
1526d743f04SSascha Wildner         cam_simq_release(devq);
153d6c667eaSMatthew Dillon         cam_sim_free(sc->sim_0);
1546d743f04SSascha Wildner         lockmgr(&sc->sim_lock, LK_RELEASE);
1556d743f04SSascha Wildner         return(ENXIO);
1566d743f04SSascha Wildner     }
1576d743f04SSascha Wildner     if (xpt_create_path(&sc->path_0, NULL, cam_sim_path(sc->sim_0),
1586d743f04SSascha Wildner                          CAM_TARGET_WILDCARD,
1596d743f04SSascha Wildner                          CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
1606d743f04SSascha Wildner         xpt_bus_deregister(cam_sim_path(sc->sim_0));
1616d743f04SSascha Wildner         cam_simq_release(devq);
162d6c667eaSMatthew Dillon         cam_sim_free(sc->sim_0);
1636d743f04SSascha Wildner         lockmgr(&sc->sim_lock, LK_RELEASE);
1646d743f04SSascha Wildner         return(ENXIO);
1656d743f04SSascha Wildner     }
1666d743f04SSascha Wildner     lockmgr(&sc->sim_lock, LK_RELEASE);
1676d743f04SSascha Wildner 
1686d743f04SSascha Wildner     /*
1696d743f04SSascha Wildner      * Create SIM for bus 1 and register, also create path
1706d743f04SSascha Wildner      */
1716d743f04SSascha Wildner     sc->sim_1 = cam_sim_alloc(mrsas_action, mrsas_poll, "mrsas", sc,
1726d743f04SSascha Wildner         device_get_unit(sc->mrsas_dev), &sc->sim_lock, mrsas_cam_depth,
1736d743f04SSascha Wildner         mrsas_cam_depth, devq);
1746d743f04SSascha Wildner     cam_simq_release(devq);
1756d743f04SSascha Wildner     if (sc->sim_1 == NULL){
1766d743f04SSascha Wildner         device_printf(sc->mrsas_dev, "Cannot register SIM\n");
1776d743f04SSascha Wildner         return(ENXIO);
1786d743f04SSascha Wildner     }
1796d743f04SSascha Wildner 
1806d743f04SSascha Wildner     lockmgr(&sc->sim_lock, LK_EXCLUSIVE);
1816d743f04SSascha Wildner     if (xpt_bus_register(sc->sim_1, 1) != CAM_SUCCESS){
1826d743f04SSascha Wildner 	cam_sim_free(sc->sim_1);
1836d743f04SSascha Wildner         lockmgr(&sc->sim_lock, LK_RELEASE);
1846d743f04SSascha Wildner         return(ENXIO);
1856d743f04SSascha Wildner     }
1866d743f04SSascha Wildner     if (xpt_create_path(&sc->path_1, NULL, cam_sim_path(sc->sim_1),
1876d743f04SSascha Wildner                          CAM_TARGET_WILDCARD,
1886d743f04SSascha Wildner                          CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
1896d743f04SSascha Wildner         xpt_bus_deregister(cam_sim_path(sc->sim_1));
1906d743f04SSascha Wildner         cam_sim_free(sc->sim_1);
1916d743f04SSascha Wildner         lockmgr(&sc->sim_lock, LK_RELEASE);
1926d743f04SSascha Wildner         return(ENXIO);
1936d743f04SSascha Wildner     }
1946d743f04SSascha Wildner     lockmgr(&sc->sim_lock, LK_RELEASE);
1956d743f04SSascha Wildner 
1966d743f04SSascha Wildner     if (mrsas_bus_scan(sc)){
1976d743f04SSascha Wildner         device_printf(sc->mrsas_dev, "Error in bus scan.\n");
1986d743f04SSascha Wildner         return(1);
1996d743f04SSascha Wildner     }
2006d743f04SSascha Wildner     return(0);
2016d743f04SSascha Wildner }
2026d743f04SSascha Wildner 
2036d743f04SSascha Wildner /**
2046d743f04SSascha Wildner  * mrsas_cam_detach:        De-allocates and teardown CAM
2056d743f04SSascha Wildner  * input:                   Adapter instance soft state
2066d743f04SSascha Wildner  *
2076d743f04SSascha Wildner  * De-registers and frees the paths and SIMs.
2086d743f04SSascha Wildner  */
mrsas_cam_detach(struct mrsas_softc * sc)2096d743f04SSascha Wildner void mrsas_cam_detach(struct mrsas_softc *sc)
2106d743f04SSascha Wildner {
2116d743f04SSascha Wildner     if (sc->ev_tq != NULL)
2126d743f04SSascha Wildner         taskqueue_free(sc->ev_tq);
2136d743f04SSascha Wildner     lockmgr(&sc->sim_lock, LK_EXCLUSIVE);
2146d743f04SSascha Wildner     if (sc->path_0)
2156d743f04SSascha Wildner         xpt_free_path(sc->path_0);
2166d743f04SSascha Wildner     if (sc->sim_0) {
2176d743f04SSascha Wildner         xpt_bus_deregister(cam_sim_path(sc->sim_0));
2186d743f04SSascha Wildner         cam_sim_free(sc->sim_0);
2196d743f04SSascha Wildner     }
2206d743f04SSascha Wildner     if (sc->path_1)
2216d743f04SSascha Wildner         xpt_free_path(sc->path_1);
2226d743f04SSascha Wildner     if (sc->sim_1) {
2236d743f04SSascha Wildner         xpt_bus_deregister(cam_sim_path(sc->sim_1));
2246d743f04SSascha Wildner         cam_sim_free(sc->sim_1);
2256d743f04SSascha Wildner     }
2266d743f04SSascha Wildner     lockmgr(&sc->sim_lock, LK_RELEASE);
2276d743f04SSascha Wildner }
2286d743f04SSascha Wildner 
2296d743f04SSascha Wildner /**
2306d743f04SSascha Wildner  * mrsas_action:            SIM callback entry point
2316d743f04SSascha Wildner  * input:                   pointer to SIM
2326d743f04SSascha Wildner  *                          pointer to CAM Control Block
2336d743f04SSascha Wildner  *
2346d743f04SSascha Wildner  * This function processes CAM subsystem requests. The type of request is
2356d743f04SSascha Wildner  * stored in ccb->ccb_h.func_code.  The preprocessor #ifdef is necessary
2366d743f04SSascha Wildner  * because ccb->cpi.maxio is not supported for FreeBSD version 7.4 or
2376d743f04SSascha Wildner  * earlier.
2386d743f04SSascha Wildner  */
mrsas_action(struct cam_sim * sim,union ccb * ccb)2396d743f04SSascha Wildner static void mrsas_action(struct cam_sim *sim, union ccb *ccb)
2406d743f04SSascha Wildner {
2416d743f04SSascha Wildner     struct mrsas_softc *sc = (struct mrsas_softc *)cam_sim_softc(sim);
2426d743f04SSascha Wildner     struct ccb_hdr *ccb_h = &(ccb->ccb_h);
2436d743f04SSascha Wildner     u_int32_t device_id;
2446d743f04SSascha Wildner 
2456d743f04SSascha Wildner     switch (ccb->ccb_h.func_code) {
2466d743f04SSascha Wildner         case XPT_SCSI_IO:
2476d743f04SSascha Wildner         {
2486d743f04SSascha Wildner             device_id = ccb_h->target_id;
2496d743f04SSascha Wildner 
2506d743f04SSascha Wildner             /*
2516d743f04SSascha Wildner              * bus 0 is LD, bus 1 is for system-PD
2526d743f04SSascha Wildner              */
2536d743f04SSascha Wildner             if (cam_sim_bus(sim) == 1 &&
2546d743f04SSascha Wildner                 sc->pd_list[device_id].driveState != MR_PD_STATE_SYSTEM) {
2556d743f04SSascha Wildner                 ccb->ccb_h.status |= CAM_DEV_NOT_THERE;
2566d743f04SSascha Wildner                 xpt_done(ccb);
2576d743f04SSascha Wildner             }
2586d743f04SSascha Wildner             else {
2596d743f04SSascha Wildner                 if (mrsas_startio(sc, sim, ccb)){
2606d743f04SSascha Wildner                     ccb->ccb_h.status |= CAM_REQ_INVALID;
2616d743f04SSascha Wildner                     xpt_done(ccb);
2626d743f04SSascha Wildner                 }
2636d743f04SSascha Wildner             }
2646d743f04SSascha Wildner             break;
2656d743f04SSascha Wildner         }
2666d743f04SSascha Wildner         case XPT_ABORT:
2676d743f04SSascha Wildner         {
2686d743f04SSascha Wildner             ccb->ccb_h.status = CAM_UA_ABORT;
2696d743f04SSascha Wildner             xpt_done(ccb);
2706d743f04SSascha Wildner             break;
2716d743f04SSascha Wildner         }
2726d743f04SSascha Wildner         case XPT_RESET_BUS:
2736d743f04SSascha Wildner         {
2746d743f04SSascha Wildner             xpt_done(ccb);
2756d743f04SSascha Wildner             break;
2766d743f04SSascha Wildner         }
2776d743f04SSascha Wildner         case XPT_GET_TRAN_SETTINGS:
2786d743f04SSascha Wildner         {
2796d743f04SSascha Wildner             ccb->cts.protocol = PROTO_SCSI;
2806d743f04SSascha Wildner             ccb->cts.protocol_version = SCSI_REV_2;
2816d743f04SSascha Wildner             ccb->cts.transport = XPORT_SPI;
2826d743f04SSascha Wildner             ccb->cts.transport_version = 2;
2836d743f04SSascha Wildner             ccb->cts.xport_specific.spi.valid = CTS_SPI_VALID_DISC;
2846d743f04SSascha Wildner             ccb->cts.xport_specific.spi.flags = CTS_SPI_FLAGS_DISC_ENB;
2856d743f04SSascha Wildner             ccb->cts.proto_specific.scsi.valid = CTS_SCSI_VALID_TQ;
2866d743f04SSascha Wildner             ccb->cts.proto_specific.scsi.flags = CTS_SCSI_FLAGS_TAG_ENB;
2876d743f04SSascha Wildner             ccb->ccb_h.status = CAM_REQ_CMP;
2886d743f04SSascha Wildner             xpt_done(ccb);
2896d743f04SSascha Wildner             break;
2906d743f04SSascha Wildner         }
2916d743f04SSascha Wildner         case XPT_SET_TRAN_SETTINGS:
2926d743f04SSascha Wildner         {
2936d743f04SSascha Wildner             ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
2946d743f04SSascha Wildner             xpt_done(ccb);
2956d743f04SSascha Wildner             break;
2966d743f04SSascha Wildner         }
2976d743f04SSascha Wildner         case XPT_CALC_GEOMETRY:
2986d743f04SSascha Wildner         {
2996d743f04SSascha Wildner             cam_calc_geometry(&ccb->ccg, 1);
3006d743f04SSascha Wildner             xpt_done(ccb);
3016d743f04SSascha Wildner             break;
3026d743f04SSascha Wildner         }
3036d743f04SSascha Wildner         case XPT_PATH_INQ:
3046d743f04SSascha Wildner         {
3056d743f04SSascha Wildner             ccb->cpi.version_num = 1;
3066d743f04SSascha Wildner             ccb->cpi.hba_inquiry = 0;
3076d743f04SSascha Wildner             ccb->cpi.target_sprt = 0;
3086d743f04SSascha Wildner             ccb->cpi.hba_misc = 0;
3096d743f04SSascha Wildner             ccb->cpi.hba_eng_cnt = 0;
3106d743f04SSascha Wildner             ccb->cpi.max_lun = MRSAS_SCSI_MAX_LUNS;
3116d743f04SSascha Wildner             ccb->cpi.unit_number = cam_sim_unit(sim);
3126d743f04SSascha Wildner             ccb->cpi.bus_id = cam_sim_bus(sim);
3136d743f04SSascha Wildner             ccb->cpi.initiator_id = MRSAS_SCSI_INITIATOR_ID;
3146d743f04SSascha Wildner             ccb->cpi.base_transfer_speed = 150000;
3156d743f04SSascha Wildner             strncpy(ccb->cpi.sim_vid, "FreeBSD", SIM_IDLEN);
3166d743f04SSascha Wildner             strncpy(ccb->cpi.hba_vid, "LSI", HBA_IDLEN);
3176d743f04SSascha Wildner             strncpy(ccb->cpi.dev_name, cam_sim_name(sim), DEV_IDLEN);
3186d743f04SSascha Wildner             ccb->cpi.transport = XPORT_SPI;
3196d743f04SSascha Wildner             ccb->cpi.transport_version = 2;
3206d743f04SSascha Wildner             ccb->cpi.protocol = PROTO_SCSI;
3216d743f04SSascha Wildner             ccb->cpi.protocol_version = SCSI_REV_2;
3226d743f04SSascha Wildner             if (ccb->cpi.bus_id == 0)
3236d743f04SSascha Wildner                 ccb->cpi.max_target = MRSAS_MAX_LD-1;
3246d743f04SSascha Wildner             else
3256d743f04SSascha Wildner                 ccb->cpi.max_target = MRSAS_MAX_PD-1;
3266d743f04SSascha Wildner             ccb->cpi.maxio = MRSAS_MAX_IO_SIZE;
3276d743f04SSascha Wildner             ccb->ccb_h.status = CAM_REQ_CMP;
3286d743f04SSascha Wildner             xpt_done(ccb);
3296d743f04SSascha Wildner             break;
3306d743f04SSascha Wildner         }
3316d743f04SSascha Wildner         default:
3326d743f04SSascha Wildner         {
3336d743f04SSascha Wildner             ccb->ccb_h.status = CAM_REQ_INVALID;
3346d743f04SSascha Wildner             xpt_done(ccb);
3356d743f04SSascha Wildner             break;
3366d743f04SSascha Wildner         }
3376d743f04SSascha Wildner     }
3386d743f04SSascha Wildner }
3396d743f04SSascha Wildner 
3406d743f04SSascha Wildner /**
3416d743f04SSascha Wildner  * mrsas_scsiio_timeout         Callback function for IO timed out
3426d743f04SSascha Wildner  * input:                       mpt command context
3436d743f04SSascha Wildner  *
3446d743f04SSascha Wildner  * This function will execute after timeout value
3456d743f04SSascha Wildner  * provided by ccb header from CAM layer, if timer expires.
3466d743f04SSascha Wildner  * Driver will run timer for all DCDM and LDIO comming from CAM layer.
3476d743f04SSascha Wildner  * This function is callback function for IO timeout and it runs in
3486d743f04SSascha Wildner  * no-sleep context. Set do_timedout_reset in Adapter context so that
3496d743f04SSascha Wildner  * it will execute OCR/Kill adpter from ocr_thread context.
3506d743f04SSascha Wildner  */
3516d743f04SSascha Wildner static void
mrsas_scsiio_timeout(void * data)3526d743f04SSascha Wildner mrsas_scsiio_timeout(void *data)
3536d743f04SSascha Wildner {
3546d743f04SSascha Wildner     struct mrsas_mpt_cmd *cmd;
3556d743f04SSascha Wildner     struct mrsas_softc *sc;
3566d743f04SSascha Wildner 
3576d743f04SSascha Wildner     cmd = (struct mrsas_mpt_cmd *)data;
3586d743f04SSascha Wildner     sc = cmd->sc;
3596d743f04SSascha Wildner 
3606d743f04SSascha Wildner     if (cmd->ccb_ptr == NULL) {
3616d743f04SSascha Wildner         kprintf("command timeout with NULL ccb\n");
3626d743f04SSascha Wildner         return;
3636d743f04SSascha Wildner     }
3646d743f04SSascha Wildner 
3656d743f04SSascha Wildner     /* Below callout is dummy entry so that it will be
3666d743f04SSascha Wildner      * cancelled from mrsas_cmd_done(). Now Controller will
3676d743f04SSascha Wildner      * go to OCR/Kill Adapter based on OCR enable/disable
3686d743f04SSascha Wildner      * property of Controller from ocr_thread context.
3696d743f04SSascha Wildner      */
3706d743f04SSascha Wildner     callout_reset(&cmd->cm_callout, (600000 * hz) / 1000,
3716d743f04SSascha Wildner     mrsas_scsiio_timeout, cmd);
3726d743f04SSascha Wildner     sc->do_timedout_reset = 1;
3736d743f04SSascha Wildner     if(sc->ocr_thread_active)
3746d743f04SSascha Wildner         wakeup(&sc->ocr_chan);
3756d743f04SSascha Wildner }
3766d743f04SSascha Wildner 
3776d743f04SSascha Wildner /**
3786d743f04SSascha Wildner  * mrsas_startio:           SCSI IO entry point
3796d743f04SSascha Wildner  * input:                   Adapter instance soft state
3806d743f04SSascha Wildner  *                          pointer to CAM Control Block
3816d743f04SSascha Wildner  *
3826d743f04SSascha Wildner  * This function is the SCSI IO entry point and it initiates IO processing.
3836d743f04SSascha Wildner  * It copies the IO and depending if the IO is read/write or inquiry, it would
3846d743f04SSascha Wildner  * call mrsas_build_ldio() or mrsas_build_dcdb(), respectively.  It returns
3856d743f04SSascha Wildner  * 0 if the command is sent to firmware successfully, otherwise it returns 1.
3866d743f04SSascha Wildner  */
mrsas_startio(struct mrsas_softc * sc,struct cam_sim * sim,union ccb * ccb)3876d743f04SSascha Wildner static int32_t mrsas_startio(struct mrsas_softc *sc, struct cam_sim *sim,
3886d743f04SSascha Wildner                              union ccb *ccb)
3896d743f04SSascha Wildner {
3906d743f04SSascha Wildner     struct mrsas_mpt_cmd *cmd;
3916d743f04SSascha Wildner     struct ccb_hdr *ccb_h = &(ccb->ccb_h);
3926d743f04SSascha Wildner     struct ccb_scsiio *csio = &(ccb->csio);
3936d743f04SSascha Wildner     MRSAS_REQUEST_DESCRIPTOR_UNION *req_desc;
3946d743f04SSascha Wildner 
3956d743f04SSascha Wildner     if ((csio->cdb_io.cdb_bytes[0]) == SYNCHRONIZE_CACHE){
3966d743f04SSascha Wildner         ccb->ccb_h.status = CAM_REQ_CMP;
3976d743f04SSascha Wildner         xpt_done(ccb);
3986d743f04SSascha Wildner         return(0);
3996d743f04SSascha Wildner     }
4006d743f04SSascha Wildner 
4016d743f04SSascha Wildner     ccb_h->status |= CAM_SIM_QUEUED;
4026d743f04SSascha Wildner     cmd = mrsas_get_mpt_cmd(sc);
4036d743f04SSascha Wildner 
4046d743f04SSascha Wildner     if (!cmd) {
4056d743f04SSascha Wildner         ccb_h->status |= CAM_REQUEUE_REQ;
4066d743f04SSascha Wildner         xpt_done(ccb);
4076d743f04SSascha Wildner         return(0);
4086d743f04SSascha Wildner     }
4096d743f04SSascha Wildner 
4106d743f04SSascha Wildner     if ((ccb_h->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
4116d743f04SSascha Wildner         if(ccb_h->flags & CAM_DIR_IN)
4126d743f04SSascha Wildner             cmd->flags |= MRSAS_DIR_IN;
4136d743f04SSascha Wildner         if(ccb_h->flags & CAM_DIR_OUT)
4146d743f04SSascha Wildner             cmd->flags |= MRSAS_DIR_OUT;
4156d743f04SSascha Wildner     }
4166d743f04SSascha Wildner     else
4176d743f04SSascha Wildner         cmd->flags = MRSAS_DIR_NONE; /* no data */
4186d743f04SSascha Wildner 
4196d743f04SSascha Wildner /* For FreeBSD 10.0 and higher */
4206d743f04SSascha Wildner #if 0 /* XXX (__FreeBSD_version >= 1000000) */
4216d743f04SSascha Wildner /*
4226d743f04SSascha Wildner  *      * XXX We don't yet support physical addresses here.
4236d743f04SSascha Wildner  */
4246d743f04SSascha Wildner     switch ((ccb->ccb_h.flags & CAM_DATA_MASK)) {
4256d743f04SSascha Wildner     case CAM_DATA_PADDR:
4266d743f04SSascha Wildner     case CAM_DATA_SG_PADDR:
4276d743f04SSascha Wildner          kprintf("%s: physical addresses not supported\n",
4286d743f04SSascha Wildner                __func__);
4296d743f04SSascha Wildner          mrsas_release_mpt_cmd(cmd);
4306d743f04SSascha Wildner          ccb_h->status = CAM_REQ_INVALID;
4316d743f04SSascha Wildner          ccb_h->status &= ~CAM_SIM_QUEUED;
4326d743f04SSascha Wildner          goto done;
4336d743f04SSascha Wildner     case CAM_DATA_SG:
4346d743f04SSascha Wildner          kprintf("%s: scatter gather is not supported\n",
4356d743f04SSascha Wildner                __func__);
4366d743f04SSascha Wildner          mrsas_release_mpt_cmd(cmd);
4376d743f04SSascha Wildner          ccb_h->status = CAM_REQ_INVALID;
4386d743f04SSascha Wildner          goto done;
4396d743f04SSascha Wildner 	case CAM_DATA_VADDR:
4406d743f04SSascha Wildner          if (csio->dxfer_len > MRSAS_MAX_IO_SIZE) {
4416d743f04SSascha Wildner               mrsas_release_mpt_cmd(cmd);
4426d743f04SSascha Wildner               ccb_h->status = CAM_REQ_TOO_BIG;
4436d743f04SSascha Wildner               goto done;
4446d743f04SSascha Wildner           }
4456d743f04SSascha Wildner           cmd->length = csio->dxfer_len;
4466d743f04SSascha Wildner           if (cmd->length)
4476d743f04SSascha Wildner               cmd->data = csio->data_ptr;
4486d743f04SSascha Wildner         break;
4496d743f04SSascha Wildner     default:
4506d743f04SSascha Wildner         ccb->ccb_h.status = CAM_REQ_INVALID;
4516d743f04SSascha Wildner         goto done;
4526d743f04SSascha Wildner     }
4536d743f04SSascha Wildner #else
4546d743f04SSascha Wildner     if (!(ccb_h->flags & CAM_DATA_PHYS)) {  //Virtual data address
4556d743f04SSascha Wildner          if (!(ccb_h->flags & CAM_SCATTER_VALID)) {
4566d743f04SSascha Wildner              if (csio->dxfer_len > MRSAS_MAX_IO_SIZE) {
4576d743f04SSascha Wildner                  mrsas_release_mpt_cmd(cmd);
4586d743f04SSascha Wildner                  ccb_h->status = CAM_REQ_TOO_BIG;
4596d743f04SSascha Wildner                  goto done;
4606d743f04SSascha Wildner              }
4616d743f04SSascha Wildner              cmd->length = csio->dxfer_len;
4626d743f04SSascha Wildner              if (cmd->length)
4636d743f04SSascha Wildner                  cmd->data = csio->data_ptr;
4646d743f04SSascha Wildner          }
4656d743f04SSascha Wildner          else {
4666d743f04SSascha Wildner              mrsas_release_mpt_cmd(cmd);
4676d743f04SSascha Wildner              ccb_h->status = CAM_REQ_INVALID;
4686d743f04SSascha Wildner              goto done;
4696d743f04SSascha Wildner          }
4706d743f04SSascha Wildner     }
4716d743f04SSascha Wildner     else { //Data addresses are physical.
4726d743f04SSascha Wildner          mrsas_release_mpt_cmd(cmd);
4736d743f04SSascha Wildner          ccb_h->status = CAM_REQ_INVALID;
4746d743f04SSascha Wildner          ccb_h->status &= ~CAM_SIM_QUEUED;
4756d743f04SSascha Wildner          goto done;
4766d743f04SSascha Wildner     }
4776d743f04SSascha Wildner #endif
4786d743f04SSascha Wildner     /* save ccb ptr */
4796d743f04SSascha Wildner     cmd->ccb_ptr = ccb;
4806d743f04SSascha Wildner 
4816d743f04SSascha Wildner     req_desc = mrsas_get_request_desc(sc, (cmd->index)-1);
4826d743f04SSascha Wildner     if (!req_desc) {
4836d743f04SSascha Wildner         device_printf(sc->mrsas_dev, "Cannot get request_descriptor.\n");
4846d743f04SSascha Wildner         return (FAIL);
4856d743f04SSascha Wildner     }
4866d743f04SSascha Wildner     memset(req_desc, 0, sizeof(MRSAS_REQUEST_DESCRIPTOR_UNION));
4876d743f04SSascha Wildner     cmd->request_desc = req_desc;
4886d743f04SSascha Wildner 
4896d743f04SSascha Wildner     if (ccb_h->flags & CAM_CDB_POINTER)
4906d743f04SSascha Wildner         bcopy(csio->cdb_io.cdb_ptr, cmd->io_request->CDB.CDB32, csio->cdb_len);
4916d743f04SSascha Wildner     else
4926d743f04SSascha Wildner         bcopy(csio->cdb_io.cdb_bytes, cmd->io_request->CDB.CDB32, csio->cdb_len);
4936d743f04SSascha Wildner     lockmgr(&sc->raidmap_lock, LK_EXCLUSIVE);
4946d743f04SSascha Wildner 
4956d743f04SSascha Wildner     if (mrsas_ldio_inq(sim, ccb)) {
4966d743f04SSascha Wildner         if (mrsas_build_ldio(sc, cmd, ccb)){
4976d743f04SSascha Wildner             device_printf(sc->mrsas_dev, "Build LDIO failed.\n");
4986d743f04SSascha Wildner 	    lockmgr(&sc->raidmap_lock, LK_RELEASE);
4996d743f04SSascha Wildner             return(1);
5006d743f04SSascha Wildner         }
5016d743f04SSascha Wildner     }
5026d743f04SSascha Wildner     else {
5036d743f04SSascha Wildner         if (mrsas_build_dcdb(sc, cmd, ccb, sim)) {
5046d743f04SSascha Wildner             device_printf(sc->mrsas_dev, "Build DCDB failed.\n");
5056d743f04SSascha Wildner 	    lockmgr(&sc->raidmap_lock, LK_RELEASE);
5066d743f04SSascha Wildner             return(1);
5076d743f04SSascha Wildner         }
5086d743f04SSascha Wildner     }
5096d743f04SSascha Wildner     lockmgr(&sc->raidmap_lock, LK_RELEASE);
5106d743f04SSascha Wildner 
5116d743f04SSascha Wildner     if (cmd->flags == MRSAS_DIR_IN) //from device
5126d743f04SSascha Wildner         cmd->io_request->Control |= MPI2_SCSIIO_CONTROL_READ;
5136d743f04SSascha Wildner     else if (cmd->flags == MRSAS_DIR_OUT)  //to device
5146d743f04SSascha Wildner         cmd->io_request->Control |= MPI2_SCSIIO_CONTROL_WRITE;
5156d743f04SSascha Wildner 
5166d743f04SSascha Wildner     cmd->io_request->SGLFlags = MPI2_SGE_FLAGS_64_BIT_ADDRESSING;
5176d743f04SSascha Wildner     cmd->io_request->SGLOffset0 = offsetof(MRSAS_RAID_SCSI_IO_REQUEST, SGL)/4;
5186d743f04SSascha Wildner     cmd->io_request->SenseBufferLowAddress = cmd->sense_phys_addr;
5196d743f04SSascha Wildner     cmd->io_request->SenseBufferLength = MRSAS_SCSI_SENSE_BUFFERSIZE;
5206d743f04SSascha Wildner 
5216d743f04SSascha Wildner     req_desc = cmd->request_desc;
5226d743f04SSascha Wildner     req_desc->SCSIIO.SMID = cmd->index;
5236d743f04SSascha Wildner 
5246d743f04SSascha Wildner     /*
5256d743f04SSascha Wildner      * Start timer for IO timeout. Default timeout value is 90 second.
5266d743f04SSascha Wildner      */
5276d743f04SSascha Wildner     callout_reset(&cmd->cm_callout, (sc->mrsas_io_timeout * hz) / 1000,
5286d743f04SSascha Wildner         mrsas_scsiio_timeout, cmd);
5296d743f04SSascha Wildner     atomic_inc(&sc->fw_outstanding);
5306d743f04SSascha Wildner 
5316d743f04SSascha Wildner 	if(atomic_read(&sc->fw_outstanding) > sc->io_cmds_highwater)
5326d743f04SSascha Wildner         sc->io_cmds_highwater++;
5336d743f04SSascha Wildner 
5346d743f04SSascha Wildner     mrsas_fire_cmd(sc, req_desc->addr.u.low, req_desc->addr.u.high);
5356d743f04SSascha Wildner     return(0);
5366d743f04SSascha Wildner 
5376d743f04SSascha Wildner done:
5386d743f04SSascha Wildner     xpt_done(ccb);
5396d743f04SSascha Wildner     return(0);
5406d743f04SSascha Wildner }
5416d743f04SSascha Wildner 
5426d743f04SSascha Wildner /**
5436d743f04SSascha Wildner  * mrsas_ldio_inq:           Determines if IO is read/write or inquiry
5446d743f04SSascha Wildner  * input:                        pointer to CAM Control Block
5456d743f04SSascha Wildner  *
5466d743f04SSascha Wildner  * This function determines if the IO is read/write or inquiry.  It returns a
5476d743f04SSascha Wildner  * 1 if the IO is read/write and 0 if it is inquiry.
5486d743f04SSascha Wildner  */
mrsas_ldio_inq(struct cam_sim * sim,union ccb * ccb)5496d743f04SSascha Wildner int mrsas_ldio_inq(struct cam_sim *sim, union ccb *ccb)
5506d743f04SSascha Wildner {
5516d743f04SSascha Wildner     struct ccb_scsiio *csio = &(ccb->csio);
5526d743f04SSascha Wildner 
5536d743f04SSascha Wildner     if (cam_sim_bus(sim) == 1)
5546d743f04SSascha Wildner         return(0);
5556d743f04SSascha Wildner 
5566d743f04SSascha Wildner     switch (csio->cdb_io.cdb_bytes[0]) {
5576d743f04SSascha Wildner         case READ_10:
5586d743f04SSascha Wildner         case WRITE_10:
5596d743f04SSascha Wildner         case READ_12:
5606d743f04SSascha Wildner         case WRITE_12:
5616d743f04SSascha Wildner         case READ_6:
5626d743f04SSascha Wildner         case WRITE_6:
5636d743f04SSascha Wildner         case READ_16:
5646d743f04SSascha Wildner         case WRITE_16:
5656d743f04SSascha Wildner             return 1;
5666d743f04SSascha Wildner         default:
5676d743f04SSascha Wildner             return 0;
5686d743f04SSascha Wildner     }
5696d743f04SSascha Wildner }
5706d743f04SSascha Wildner 
5716d743f04SSascha Wildner /**
5726d743f04SSascha Wildner  * mrsas_get_mpt_cmd:            Get a cmd from free command pool
5736d743f04SSascha Wildner  * input:                        Adapter instance soft state
5746d743f04SSascha Wildner  *
5756d743f04SSascha Wildner  * This function removes an MPT command from the command free list and
5766d743f04SSascha Wildner  * initializes it.
5776d743f04SSascha Wildner  */
mrsas_get_mpt_cmd(struct mrsas_softc * sc)5786d743f04SSascha Wildner struct mrsas_mpt_cmd* mrsas_get_mpt_cmd(struct mrsas_softc *sc)
5796d743f04SSascha Wildner {
5806d743f04SSascha Wildner     struct mrsas_mpt_cmd *cmd = NULL;
5816d743f04SSascha Wildner 
5826d743f04SSascha Wildner     lockmgr(&sc->mpt_cmd_pool_lock, LK_EXCLUSIVE);
5836d743f04SSascha Wildner     if (!TAILQ_EMPTY(&sc->mrsas_mpt_cmd_list_head)){
5846d743f04SSascha Wildner         cmd = TAILQ_FIRST(&sc->mrsas_mpt_cmd_list_head);
5856d743f04SSascha Wildner         TAILQ_REMOVE(&sc->mrsas_mpt_cmd_list_head, cmd, next);
5866d743f04SSascha Wildner     }
5876d743f04SSascha Wildner     memset((uint8_t *)cmd->io_request, 0, MRSAS_MPI2_RAID_DEFAULT_IO_FRAME_SIZE);
5886d743f04SSascha Wildner     cmd->data = NULL;
5896d743f04SSascha Wildner     cmd->length = 0;
5906d743f04SSascha Wildner     cmd->flags = 0;
5916d743f04SSascha Wildner     cmd->error_code = 0;
5926d743f04SSascha Wildner     cmd->load_balance = 0;
5936d743f04SSascha Wildner     cmd->ccb_ptr = NULL;
5946d743f04SSascha Wildner     lockmgr(&sc->mpt_cmd_pool_lock, LK_RELEASE);
5956d743f04SSascha Wildner 
5966d743f04SSascha Wildner     return cmd;
5976d743f04SSascha Wildner }
5986d743f04SSascha Wildner 
5996d743f04SSascha Wildner /**
6006d743f04SSascha Wildner  * mrsas_release_mpt_cmd:      Return a cmd to free command pool
6016d743f04SSascha Wildner  * input:                      Command packet for return to free command pool
6026d743f04SSascha Wildner  *
6036d743f04SSascha Wildner  * This function returns an MPT command to the free command list.
6046d743f04SSascha Wildner  */
mrsas_release_mpt_cmd(struct mrsas_mpt_cmd * cmd)6056d743f04SSascha Wildner void mrsas_release_mpt_cmd(struct mrsas_mpt_cmd *cmd)
6066d743f04SSascha Wildner {
6076d743f04SSascha Wildner     struct mrsas_softc *sc = cmd->sc;
6086d743f04SSascha Wildner 
6096d743f04SSascha Wildner     lockmgr(&sc->mpt_cmd_pool_lock, LK_EXCLUSIVE);
6106d743f04SSascha Wildner     cmd->sync_cmd_idx = (u_int32_t)MRSAS_ULONG_MAX;
6116d743f04SSascha Wildner     TAILQ_INSERT_TAIL(&(sc->mrsas_mpt_cmd_list_head), cmd, next);
6126d743f04SSascha Wildner     lockmgr(&sc->mpt_cmd_pool_lock, LK_RELEASE);
6136d743f04SSascha Wildner 
6146d743f04SSascha Wildner     return;
6156d743f04SSascha Wildner }
6166d743f04SSascha Wildner 
6176d743f04SSascha Wildner /**
6186d743f04SSascha Wildner  * mrsas_get_request_desc:     Get request descriptor from array
6196d743f04SSascha Wildner  * input:                      Adapter instance soft state
6206d743f04SSascha Wildner  *                             SMID index
6216d743f04SSascha Wildner  *
6226d743f04SSascha Wildner  * This function returns a pointer to the request descriptor.
6236d743f04SSascha Wildner  */
6246d743f04SSascha Wildner MRSAS_REQUEST_DESCRIPTOR_UNION *
mrsas_get_request_desc(struct mrsas_softc * sc,u_int16_t index)6256d743f04SSascha Wildner mrsas_get_request_desc(struct mrsas_softc *sc, u_int16_t index)
6266d743f04SSascha Wildner {
6276d743f04SSascha Wildner     u_int8_t *p;
6286d743f04SSascha Wildner 
6296d743f04SSascha Wildner     if (index >= sc->max_fw_cmds) {
6306d743f04SSascha Wildner         device_printf(sc->mrsas_dev, "Invalid SMID (0x%x)request for desc\n", index);
6316d743f04SSascha Wildner         return NULL;
6326d743f04SSascha Wildner     }
6336d743f04SSascha Wildner     p = sc->req_desc + sizeof(MRSAS_REQUEST_DESCRIPTOR_UNION) * index;
6346d743f04SSascha Wildner 
6356d743f04SSascha Wildner     return (MRSAS_REQUEST_DESCRIPTOR_UNION *)p;
6366d743f04SSascha Wildner }
6376d743f04SSascha Wildner 
6386d743f04SSascha Wildner /**
6396d743f04SSascha Wildner  * mrsas_build_ldio:       Builds an LDIO command
6406d743f04SSascha Wildner  * input:                  Adapter instance soft state
6416d743f04SSascha Wildner  *                         Pointer to command packet
6426d743f04SSascha Wildner  *                         Pointer to CCB
6436d743f04SSascha Wildner  *
6446d743f04SSascha Wildner  * This function builds the LDIO command packet.  It returns 0 if the
6456d743f04SSascha Wildner  * command is built successfully, otherwise it returns a 1.
6466d743f04SSascha Wildner  */
mrsas_build_ldio(struct mrsas_softc * sc,struct mrsas_mpt_cmd * cmd,union ccb * ccb)6476d743f04SSascha Wildner int mrsas_build_ldio(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
6486d743f04SSascha Wildner                       union ccb *ccb)
6496d743f04SSascha Wildner {
6506d743f04SSascha Wildner     struct ccb_hdr *ccb_h = &(ccb->ccb_h);
6516d743f04SSascha Wildner     struct ccb_scsiio *csio = &(ccb->csio);
6526d743f04SSascha Wildner     u_int32_t device_id;
6536d743f04SSascha Wildner     MRSAS_RAID_SCSI_IO_REQUEST *io_request;
6546d743f04SSascha Wildner 
6556d743f04SSascha Wildner     device_id = ccb_h->target_id;
6566d743f04SSascha Wildner 
6576d743f04SSascha Wildner     io_request = cmd->io_request;
6586d743f04SSascha Wildner     io_request->RaidContext.VirtualDiskTgtId = device_id;
6596d743f04SSascha Wildner     io_request->RaidContext.status = 0;
6606d743f04SSascha Wildner     io_request->RaidContext.exStatus = 0;
6616d743f04SSascha Wildner 
6626d743f04SSascha Wildner     /* just the cdb len, other flags zero, and ORed-in later for FP */
6636d743f04SSascha Wildner     io_request->IoFlags = csio->cdb_len;
6646d743f04SSascha Wildner 
6656d743f04SSascha Wildner     if (mrsas_setup_io(sc, cmd, ccb, device_id, io_request) != SUCCESS)
6666d743f04SSascha Wildner         device_printf(sc->mrsas_dev, "Build ldio or fpio error\n");
6676d743f04SSascha Wildner 
6686d743f04SSascha Wildner     io_request->DataLength = cmd->length;
6696d743f04SSascha Wildner 
6706d743f04SSascha Wildner     if (mrsas_map_request(sc, cmd) == SUCCESS) {
6716d743f04SSascha Wildner         if (cmd->sge_count > MRSAS_MAX_SGL) {
6726d743f04SSascha Wildner             device_printf(sc->mrsas_dev, "Error: sge_count (0x%x) exceeds"
6736d743f04SSascha Wildner                 "max (0x%x) allowed\n", cmd->sge_count, sc->max_num_sge);
6746d743f04SSascha Wildner             return (FAIL);
6756d743f04SSascha Wildner         }
6766d743f04SSascha Wildner         io_request->RaidContext.numSGE = cmd->sge_count;
6776d743f04SSascha Wildner     }
6786d743f04SSascha Wildner     else {
6796d743f04SSascha Wildner         device_printf(sc->mrsas_dev, "Data map/load failed.\n");
6806d743f04SSascha Wildner         return(FAIL);
6816d743f04SSascha Wildner     }
6826d743f04SSascha Wildner     return(0);
6836d743f04SSascha Wildner }
6846d743f04SSascha Wildner 
6856d743f04SSascha Wildner /**
6866d743f04SSascha Wildner  * mrsas_setup_io:             Set up data including Fast Path I/O
6876d743f04SSascha Wildner  * input:                      Adapter instance soft state
6886d743f04SSascha Wildner  *                             Pointer to command packet
6896d743f04SSascha Wildner  *                             Pointer to CCB
6906d743f04SSascha Wildner  *
6916d743f04SSascha Wildner  * This function builds the DCDB inquiry command.  It returns 0 if the
6926d743f04SSascha Wildner  * command is built successfully, otherwise it returns a 1.
6936d743f04SSascha Wildner  */
mrsas_setup_io(struct mrsas_softc * sc,struct mrsas_mpt_cmd * cmd,union ccb * ccb,u_int32_t device_id,MRSAS_RAID_SCSI_IO_REQUEST * io_request)6946d743f04SSascha Wildner int mrsas_setup_io(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
6956d743f04SSascha Wildner                     union ccb *ccb, u_int32_t device_id,
6966d743f04SSascha Wildner                     MRSAS_RAID_SCSI_IO_REQUEST *io_request)
6976d743f04SSascha Wildner {
6986d743f04SSascha Wildner     struct ccb_hdr *ccb_h = &(ccb->ccb_h);
6996d743f04SSascha Wildner     struct ccb_scsiio *csio = &(ccb->csio);
7006d743f04SSascha Wildner     struct IO_REQUEST_INFO io_info;
7016d743f04SSascha Wildner     MR_FW_RAID_MAP_ALL *map_ptr;
7026d743f04SSascha Wildner     u_int8_t fp_possible;
7036d743f04SSascha Wildner     u_int32_t start_lba_hi, start_lba_lo, ld_block_size;
7046d743f04SSascha Wildner     u_int32_t datalength = 0;
7056d743f04SSascha Wildner 
7066d743f04SSascha Wildner     start_lba_lo = 0;
7076d743f04SSascha Wildner     start_lba_hi = 0;
7086d743f04SSascha Wildner     fp_possible = 0;
7096d743f04SSascha Wildner 
7106d743f04SSascha Wildner     /*
7116d743f04SSascha Wildner      * READ_6 (0x08) or WRITE_6 (0x0A) cdb
7126d743f04SSascha Wildner      */
7136d743f04SSascha Wildner     if (csio->cdb_len == 6) {
7146d743f04SSascha Wildner         datalength = (u_int32_t)csio->cdb_io.cdb_bytes[4];
7156d743f04SSascha Wildner         start_lba_lo = ((u_int32_t) csio->cdb_io.cdb_bytes[1] << 16) |
7166d743f04SSascha Wildner                        ((u_int32_t) csio->cdb_io.cdb_bytes[2] << 8) |
7176d743f04SSascha Wildner                         (u_int32_t) csio->cdb_io.cdb_bytes[3];
7186d743f04SSascha Wildner         start_lba_lo &= 0x1FFFFF;
7196d743f04SSascha Wildner     }
7206d743f04SSascha Wildner     /*
7216d743f04SSascha Wildner      * READ_10 (0x28) or WRITE_6 (0x2A) cdb
7226d743f04SSascha Wildner      */
7236d743f04SSascha Wildner     else if (csio->cdb_len == 10) {
7246d743f04SSascha Wildner         datalength = (u_int32_t)csio->cdb_io.cdb_bytes[8] |
7256d743f04SSascha Wildner                        ((u_int32_t)csio->cdb_io.cdb_bytes[7] << 8);
7266d743f04SSascha Wildner         start_lba_lo = ((u_int32_t) csio->cdb_io.cdb_bytes[2] << 24) |
7276d743f04SSascha Wildner                        ((u_int32_t) csio->cdb_io.cdb_bytes[3] << 16) |
7286d743f04SSascha Wildner                         (u_int32_t) csio->cdb_io.cdb_bytes[4] << 8 |
7296d743f04SSascha Wildner                         ((u_int32_t) csio->cdb_io.cdb_bytes[5]);
7306d743f04SSascha Wildner     }
7316d743f04SSascha Wildner     /*
7326d743f04SSascha Wildner      * READ_12 (0xA8) or WRITE_12 (0xAA) cdb
7336d743f04SSascha Wildner      */
7346d743f04SSascha Wildner     else if (csio->cdb_len == 12) {
7356d743f04SSascha Wildner         datalength = (u_int32_t)csio->cdb_io.cdb_bytes[6] << 24 |
7366d743f04SSascha Wildner                        ((u_int32_t)csio->cdb_io.cdb_bytes[7] << 16) |
7376d743f04SSascha Wildner                        ((u_int32_t)csio->cdb_io.cdb_bytes[8] << 8) |
7386d743f04SSascha Wildner                        ((u_int32_t)csio->cdb_io.cdb_bytes[9]);
7396d743f04SSascha Wildner         start_lba_lo = ((u_int32_t) csio->cdb_io.cdb_bytes[2] << 24) |
7406d743f04SSascha Wildner                        ((u_int32_t) csio->cdb_io.cdb_bytes[3] << 16) |
7416d743f04SSascha Wildner                         (u_int32_t) csio->cdb_io.cdb_bytes[4] << 8 |
7426d743f04SSascha Wildner                         ((u_int32_t) csio->cdb_io.cdb_bytes[5]);
7436d743f04SSascha Wildner     }
7446d743f04SSascha Wildner     /*
7456d743f04SSascha Wildner      * READ_16 (0x88) or WRITE_16 (0xx8A) cdb
7466d743f04SSascha Wildner      */
7476d743f04SSascha Wildner     else if (csio->cdb_len == 16) {
7486d743f04SSascha Wildner         datalength = (u_int32_t)csio->cdb_io.cdb_bytes[10] << 24 |
7496d743f04SSascha Wildner                        ((u_int32_t)csio->cdb_io.cdb_bytes[11] << 16) |
7506d743f04SSascha Wildner                        ((u_int32_t)csio->cdb_io.cdb_bytes[12] << 8) |
7516d743f04SSascha Wildner                        ((u_int32_t)csio->cdb_io.cdb_bytes[13]);
7526d743f04SSascha Wildner         start_lba_lo = ((u_int32_t) csio->cdb_io.cdb_bytes[6] << 24) |
7536d743f04SSascha Wildner                        ((u_int32_t) csio->cdb_io.cdb_bytes[7] << 16) |
7546d743f04SSascha Wildner                         (u_int32_t) csio->cdb_io.cdb_bytes[8] << 8 |
7556d743f04SSascha Wildner                         ((u_int32_t) csio->cdb_io.cdb_bytes[9]);
7566d743f04SSascha Wildner         start_lba_hi = ((u_int32_t) csio->cdb_io.cdb_bytes[2] << 24) |
7576d743f04SSascha Wildner                        ((u_int32_t) csio->cdb_io.cdb_bytes[3] << 16) |
7586d743f04SSascha Wildner                         (u_int32_t) csio->cdb_io.cdb_bytes[4] << 8 |
7596d743f04SSascha Wildner                         ((u_int32_t) csio->cdb_io.cdb_bytes[5]);
7606d743f04SSascha Wildner     }
7616d743f04SSascha Wildner 
7626d743f04SSascha Wildner     memset(&io_info, 0, sizeof(struct IO_REQUEST_INFO));
7636d743f04SSascha Wildner     io_info.ldStartBlock = ((u_int64_t)start_lba_hi << 32) | start_lba_lo;
7646d743f04SSascha Wildner     io_info.numBlocks = datalength;
7656d743f04SSascha Wildner     io_info.ldTgtId = device_id;
7666d743f04SSascha Wildner 
7676d743f04SSascha Wildner     switch (ccb_h->flags & CAM_DIR_MASK) {
7686d743f04SSascha Wildner 	case CAM_DIR_IN:
7696d743f04SSascha Wildner 		io_info.isRead = 1;
7706d743f04SSascha Wildner 		break;
7716d743f04SSascha Wildner 	case CAM_DIR_OUT:
7726d743f04SSascha Wildner 		io_info.isRead = 0;
7736d743f04SSascha Wildner 		break;
7746d743f04SSascha Wildner 	case CAM_DIR_NONE:
7756d743f04SSascha Wildner 	default:
7766d743f04SSascha Wildner     	mrsas_dprint(sc, MRSAS_TRACE, "From %s : DMA Flag is %d \n", __func__, ccb_h->flags & CAM_DIR_MASK);
7776d743f04SSascha Wildner 		break;
7786d743f04SSascha Wildner     }
7796d743f04SSascha Wildner 
7806d743f04SSascha Wildner     map_ptr = sc->raidmap_mem[(sc->map_id & 1)];
781c482292fSSascha Wildner     ld_block_size = MR_LdBlockSizeGet(device_id, map_ptr);
7826d743f04SSascha Wildner 
7836d743f04SSascha Wildner     if ((MR_TargetIdToLdGet(device_id, map_ptr) >= MAX_LOGICAL_DRIVES) ||
7846d743f04SSascha Wildner             (!sc->fast_path_io)) {
7856d743f04SSascha Wildner         io_request->RaidContext.regLockFlags = 0;
7866d743f04SSascha Wildner         fp_possible = 0;
7876d743f04SSascha Wildner     }
7886d743f04SSascha Wildner     else
7896d743f04SSascha Wildner     {
7906d743f04SSascha Wildner         if (MR_BuildRaidContext(sc, &io_info, &io_request->RaidContext, map_ptr))
7916d743f04SSascha Wildner             fp_possible = io_info.fpOkForIo;
7926d743f04SSascha Wildner     }
7936d743f04SSascha Wildner 
7946d743f04SSascha Wildner     if (fp_possible) {
7956d743f04SSascha Wildner         mrsas_set_pd_lba(io_request, csio->cdb_len, &io_info, ccb, map_ptr,
7966d743f04SSascha Wildner             start_lba_lo, ld_block_size);
7976d743f04SSascha Wildner         io_request->Function = MPI2_FUNCTION_SCSI_IO_REQUEST;
7986d743f04SSascha Wildner         cmd->request_desc->SCSIIO.RequestFlags =
7996d743f04SSascha Wildner                         (MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY
8006d743f04SSascha Wildner                          << MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
8016d743f04SSascha Wildner 	    if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY)) {
8026d743f04SSascha Wildner 		    if (io_request->RaidContext.regLockFlags == REGION_TYPE_UNUSED)
8036d743f04SSascha Wildner                 cmd->request_desc->SCSIIO.RequestFlags = (MRSAS_REQ_DESCRIPT_FLAGS_NO_LOCK << MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
8046d743f04SSascha Wildner             io_request->RaidContext.Type = MPI2_TYPE_CUDA;
8056d743f04SSascha Wildner             io_request->RaidContext.nseg = 0x1;
8066d743f04SSascha Wildner             io_request->IoFlags |= MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH;
8076d743f04SSascha Wildner             io_request->RaidContext.regLockFlags |= (MR_RL_FLAGS_GRANT_DESTINATION_CUDA | MR_RL_FLAGS_SEQ_NUM_ENABLE);
8086d743f04SSascha Wildner         }
8096d743f04SSascha Wildner         if ((sc->load_balance_info[device_id].loadBalanceFlag) && (io_info.isRead)) {
8106d743f04SSascha Wildner             io_info.devHandle = mrsas_get_updated_dev_handle(&sc->load_balance_info[device_id],
8116d743f04SSascha Wildner                 &io_info);
8126d743f04SSascha Wildner             cmd->load_balance = MRSAS_LOAD_BALANCE_FLAG;
8136d743f04SSascha Wildner         }
8146d743f04SSascha Wildner         else
8156d743f04SSascha Wildner             cmd->load_balance = 0;
8166d743f04SSascha Wildner         cmd->request_desc->SCSIIO.DevHandle = io_info.devHandle;
8176d743f04SSascha Wildner         io_request->DevHandle = io_info.devHandle;
8186d743f04SSascha Wildner     }
8196d743f04SSascha Wildner     else {
8206d743f04SSascha Wildner         /* Not FP IO */
8216d743f04SSascha Wildner         io_request->RaidContext.timeoutValue = map_ptr->raidMap.fpPdIoTimeoutSec;
8226d743f04SSascha Wildner         cmd->request_desc->SCSIIO.RequestFlags =
8236d743f04SSascha Wildner             (MRSAS_REQ_DESCRIPT_FLAGS_LD_IO << MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
8246d743f04SSascha Wildner 	    if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY)) {
8256d743f04SSascha Wildner             if (io_request->RaidContext.regLockFlags == REGION_TYPE_UNUSED)
8266d743f04SSascha Wildner                 cmd->request_desc->SCSIIO.RequestFlags = (MRSAS_REQ_DESCRIPT_FLAGS_NO_LOCK << MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
8276d743f04SSascha Wildner             io_request->RaidContext.Type = MPI2_TYPE_CUDA;
8286d743f04SSascha Wildner             io_request->RaidContext.regLockFlags |= (MR_RL_FLAGS_GRANT_DESTINATION_CPU0 | MR_RL_FLAGS_SEQ_NUM_ENABLE);
8296d743f04SSascha Wildner             io_request->RaidContext.nseg = 0x1;
8306d743f04SSascha Wildner         }
8316d743f04SSascha Wildner         io_request->Function = MRSAS_MPI2_FUNCTION_LD_IO_REQUEST;
8326d743f04SSascha Wildner         io_request->DevHandle = device_id;
8336d743f04SSascha Wildner     }
8346d743f04SSascha Wildner     return(0);
8356d743f04SSascha Wildner }
8366d743f04SSascha Wildner 
8376d743f04SSascha Wildner /**
8386d743f04SSascha Wildner  * mrsas_build_dcdb:       Builds an DCDB command
8396d743f04SSascha Wildner  * input:                  Adapter instance soft state
8406d743f04SSascha Wildner  *                         Pointer to command packet
8416d743f04SSascha Wildner  *                         Pointer to CCB
8426d743f04SSascha Wildner  *
8436d743f04SSascha Wildner  * This function builds the DCDB inquiry command.  It returns 0 if the
8446d743f04SSascha Wildner  * command is built successfully, otherwise it returns a 1.
8456d743f04SSascha Wildner  */
mrsas_build_dcdb(struct mrsas_softc * sc,struct mrsas_mpt_cmd * cmd,union ccb * ccb,struct cam_sim * sim)8466d743f04SSascha Wildner int mrsas_build_dcdb(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd,
8476d743f04SSascha Wildner                       union ccb *ccb, struct cam_sim *sim)
8486d743f04SSascha Wildner {
8496d743f04SSascha Wildner     struct ccb_hdr *ccb_h = &(ccb->ccb_h);
8506d743f04SSascha Wildner     u_int32_t device_id;
8516d743f04SSascha Wildner     MR_FW_RAID_MAP_ALL *map_ptr;
8526d743f04SSascha Wildner     MRSAS_RAID_SCSI_IO_REQUEST *io_request;
8536d743f04SSascha Wildner 
8546d743f04SSascha Wildner     io_request = cmd->io_request;
8556d743f04SSascha Wildner     device_id = ccb_h->target_id;
8566d743f04SSascha Wildner     map_ptr = sc->raidmap_mem[(sc->map_id & 1)];
8576d743f04SSascha Wildner 
8586d743f04SSascha Wildner     /* Check if this is for system PD */
8596d743f04SSascha Wildner     if (cam_sim_bus(sim) == 1 &&
8606d743f04SSascha Wildner             sc->pd_list[device_id].driveState == MR_PD_STATE_SYSTEM) {
8616d743f04SSascha Wildner         io_request->Function = 0;
8626d743f04SSascha Wildner         io_request->DevHandle = map_ptr->raidMap.devHndlInfo[device_id].curDevHdl;
8636d743f04SSascha Wildner         io_request->RaidContext.timeoutValue = map_ptr->raidMap.fpPdIoTimeoutSec;
8646d743f04SSascha Wildner         io_request->RaidContext.regLockFlags = 0;
8656d743f04SSascha Wildner         io_request->RaidContext.regLockRowLBA = 0;
8666d743f04SSascha Wildner         io_request->RaidContext.regLockLength = 0;
8676d743f04SSascha Wildner         io_request->RaidContext.RAIDFlags = MR_RAID_FLAGS_IO_SUB_TYPE_SYSTEM_PD <<
8686d743f04SSascha Wildner             MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_SHIFT;
8696d743f04SSascha Wildner 	    if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY))
8706d743f04SSascha Wildner             io_request->IoFlags |= MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH;
8716d743f04SSascha Wildner         cmd->request_desc->SCSIIO.RequestFlags =
8726d743f04SSascha Wildner             (MPI2_REQ_DESCRIPT_FLAGS_HIGH_PRIORITY <<
8736d743f04SSascha Wildner             MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
8746d743f04SSascha Wildner         cmd->request_desc->SCSIIO.DevHandle =
8756d743f04SSascha Wildner             map_ptr->raidMap.devHndlInfo[device_id].curDevHdl;
8766d743f04SSascha Wildner     }
8776d743f04SSascha Wildner     else {
8786d743f04SSascha Wildner         io_request->Function  = MRSAS_MPI2_FUNCTION_LD_IO_REQUEST;
8796d743f04SSascha Wildner         io_request->DevHandle = device_id;
8806d743f04SSascha Wildner         cmd->request_desc->SCSIIO.RequestFlags =
8816d743f04SSascha Wildner             (MPI2_REQ_DESCRIPT_FLAGS_SCSI_IO << MRSAS_REQ_DESCRIPT_FLAGS_TYPE_SHIFT);
8826d743f04SSascha Wildner     }
8836d743f04SSascha Wildner 
8846d743f04SSascha Wildner     io_request->RaidContext.VirtualDiskTgtId = device_id;
8856d743f04SSascha Wildner     io_request->LUN[1] = ccb_h->target_lun & 0xF;
8866d743f04SSascha Wildner     io_request->DataLength = cmd->length;
8876d743f04SSascha Wildner 
8886d743f04SSascha Wildner     if (mrsas_map_request(sc, cmd) == SUCCESS) {
8896d743f04SSascha Wildner         if (cmd->sge_count > sc->max_num_sge) {
8906d743f04SSascha Wildner             device_printf(sc->mrsas_dev, "Error: sge_count (0x%x) exceeds"
8916d743f04SSascha Wildner                 "max (0x%x) allowed\n", cmd->sge_count, sc->max_num_sge);
8926d743f04SSascha Wildner             return (1);
8936d743f04SSascha Wildner         }
8946d743f04SSascha Wildner         io_request->RaidContext.numSGE = cmd->sge_count;
8956d743f04SSascha Wildner     }
8966d743f04SSascha Wildner     else {
8976d743f04SSascha Wildner         device_printf(sc->mrsas_dev, "Data map/load failed.\n");
8986d743f04SSascha Wildner         return(1);
8996d743f04SSascha Wildner     }
9006d743f04SSascha Wildner     return(0);
9016d743f04SSascha Wildner }
9026d743f04SSascha Wildner 
9036d743f04SSascha Wildner /**
9046d743f04SSascha Wildner  * mrsas_map_request:           Map and load data
9056d743f04SSascha Wildner  * input:                       Adapter instance soft state
9066d743f04SSascha Wildner  *                              Pointer to command packet
9076d743f04SSascha Wildner  *
9086d743f04SSascha Wildner  * For data from OS, map and load the data buffer into bus space.  The
9096d743f04SSascha Wildner  * SG list is built in the callback.  If the  bus dmamap load is not
9106d743f04SSascha Wildner  * successful, cmd->error_code will contain the  error code and a 1 is
9116d743f04SSascha Wildner  * returned.
9126d743f04SSascha Wildner  */
mrsas_map_request(struct mrsas_softc * sc,struct mrsas_mpt_cmd * cmd)9136d743f04SSascha Wildner int mrsas_map_request(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd)
9146d743f04SSascha Wildner {
9156d743f04SSascha Wildner     u_int32_t retcode = 0;
9166d743f04SSascha Wildner     struct cam_sim *sim;
9176d743f04SSascha Wildner     int flag = BUS_DMA_NOWAIT;
9186d743f04SSascha Wildner 
9196d743f04SSascha Wildner     sim = xpt_path_sim(cmd->ccb_ptr->ccb_h.path);
9206d743f04SSascha Wildner 
9216d743f04SSascha Wildner     if (cmd->data != NULL) {
9226d743f04SSascha Wildner         lockmgr(&sc->io_lock, LK_EXCLUSIVE);
9236d743f04SSascha Wildner         /* Map data buffer into bus space */
9246d743f04SSascha Wildner         retcode = bus_dmamap_load(sc->data_tag, cmd->data_dmamap, cmd->data,
9256d743f04SSascha Wildner                               cmd->length, mrsas_data_load_cb, cmd, flag);
9266d743f04SSascha Wildner         lockmgr(&sc->io_lock, LK_RELEASE);
9276d743f04SSascha Wildner 	if (retcode)
9286d743f04SSascha Wildner 	    device_printf(sc->mrsas_dev, "bus_dmamap_load(): retcode = %d\n", retcode);
9296d743f04SSascha Wildner         if (retcode == EINPROGRESS) {
9306d743f04SSascha Wildner             device_printf(sc->mrsas_dev, "request load in progress\n");
9316d743f04SSascha Wildner             mrsas_freeze_simq(cmd, sim);
9326d743f04SSascha Wildner         }
9336d743f04SSascha Wildner     }
9346d743f04SSascha Wildner     if (cmd->error_code)
9356d743f04SSascha Wildner         return(1);
9366d743f04SSascha Wildner     return(retcode);
9376d743f04SSascha Wildner }
9386d743f04SSascha Wildner 
9396d743f04SSascha Wildner /**
9406d743f04SSascha Wildner  * mrsas_unmap_request:       Unmap and unload data
9416d743f04SSascha Wildner  * input:                     Adapter instance soft state
9426d743f04SSascha Wildner  *                            Pointer to command packet
9436d743f04SSascha Wildner  *
9446d743f04SSascha Wildner  * This function unmaps and unloads data from OS.
9456d743f04SSascha Wildner  */
mrsas_unmap_request(struct mrsas_softc * sc,struct mrsas_mpt_cmd * cmd)9466d743f04SSascha Wildner void mrsas_unmap_request(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd)
9476d743f04SSascha Wildner {
9486d743f04SSascha Wildner     if (cmd->data != NULL) {
9496d743f04SSascha Wildner         if (cmd->flags & MRSAS_DIR_IN)
9506d743f04SSascha Wildner             bus_dmamap_sync(sc->data_tag, cmd->data_dmamap, BUS_DMASYNC_POSTREAD);
9516d743f04SSascha Wildner         if (cmd->flags & MRSAS_DIR_OUT)
9526d743f04SSascha Wildner             bus_dmamap_sync(sc->data_tag, cmd->data_dmamap, BUS_DMASYNC_POSTWRITE);
9536d743f04SSascha Wildner         lockmgr(&sc->io_lock, LK_EXCLUSIVE);
9546d743f04SSascha Wildner         bus_dmamap_unload(sc->data_tag, cmd->data_dmamap);
9556d743f04SSascha Wildner         lockmgr(&sc->io_lock, LK_RELEASE);
9566d743f04SSascha Wildner     }
9576d743f04SSascha Wildner }
9586d743f04SSascha Wildner 
9596d743f04SSascha Wildner /**
9606d743f04SSascha Wildner  * mrsas_data_load_cb:        Callback entry point
9616d743f04SSascha Wildner  * input:                     Pointer to command packet as argument
9626d743f04SSascha Wildner  *                            Pointer to segment
9636d743f04SSascha Wildner  *                            Number of segments
9646d743f04SSascha Wildner  *                            Error
9656d743f04SSascha Wildner  *
9666d743f04SSascha Wildner  * This is the callback function of the bus dma map load.  It builds
9676d743f04SSascha Wildner  * the SG list.
9686d743f04SSascha Wildner  */
9696d743f04SSascha Wildner static void
mrsas_data_load_cb(void * arg,bus_dma_segment_t * segs,int nseg,int error)9706d743f04SSascha Wildner mrsas_data_load_cb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
9716d743f04SSascha Wildner {
9726d743f04SSascha Wildner     struct mrsas_mpt_cmd *cmd = (struct mrsas_mpt_cmd *)arg;
9736d743f04SSascha Wildner     struct mrsas_softc *sc = cmd->sc;
9746d743f04SSascha Wildner     MRSAS_RAID_SCSI_IO_REQUEST *io_request;
9756d743f04SSascha Wildner     pMpi25IeeeSgeChain64_t sgl_ptr;
9766d743f04SSascha Wildner     int i=0, sg_processed=0;
9776d743f04SSascha Wildner 
9786d743f04SSascha Wildner     if (error)
9796d743f04SSascha Wildner     {
9806d743f04SSascha Wildner         cmd->error_code = error;
9816d743f04SSascha Wildner         device_printf(sc->mrsas_dev, "mrsas_data_load_cb: error=%d\n", error);
9826d743f04SSascha Wildner         if (error == EFBIG) {
9836d743f04SSascha Wildner             cmd->ccb_ptr->ccb_h.status = CAM_REQ_TOO_BIG;
9846d743f04SSascha Wildner             return;
9856d743f04SSascha Wildner         }
9866d743f04SSascha Wildner     }
9876d743f04SSascha Wildner 
9886d743f04SSascha Wildner     if (cmd->flags & MRSAS_DIR_IN)
9896d743f04SSascha Wildner         bus_dmamap_sync(cmd->sc->data_tag, cmd->data_dmamap,
9906d743f04SSascha Wildner                                             BUS_DMASYNC_PREREAD);
9916d743f04SSascha Wildner     if (cmd->flags & MRSAS_DIR_OUT)
9926d743f04SSascha Wildner         bus_dmamap_sync(cmd->sc->data_tag, cmd->data_dmamap,
9936d743f04SSascha Wildner                                             BUS_DMASYNC_PREWRITE);
9946d743f04SSascha Wildner     if (nseg > sc->max_num_sge) {
9956d743f04SSascha Wildner         device_printf(sc->mrsas_dev, "SGE count is too large or 0.\n");
9966d743f04SSascha Wildner         return;
9976d743f04SSascha Wildner     }
9986d743f04SSascha Wildner 
9996d743f04SSascha Wildner     io_request = cmd->io_request;
10006d743f04SSascha Wildner     sgl_ptr = (pMpi25IeeeSgeChain64_t)&io_request->SGL;
10016d743f04SSascha Wildner 
10026d743f04SSascha Wildner     if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY)) {
10036d743f04SSascha Wildner         pMpi25IeeeSgeChain64_t sgl_ptr_end = sgl_ptr;
10046d743f04SSascha Wildner         sgl_ptr_end += sc->max_sge_in_main_msg - 1;
10056d743f04SSascha Wildner         sgl_ptr_end->Flags = 0;
10066d743f04SSascha Wildner     }
10076d743f04SSascha Wildner 
10086d743f04SSascha Wildner     if (nseg != 0) {
10096d743f04SSascha Wildner         for (i=0; i < nseg; i++) {
10106d743f04SSascha Wildner             sgl_ptr->Address = segs[i].ds_addr;
10116d743f04SSascha Wildner             sgl_ptr->Length = segs[i].ds_len;
10126d743f04SSascha Wildner             sgl_ptr->Flags = 0;
10136d743f04SSascha Wildner 	        if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY)) {
10146d743f04SSascha Wildner             	if (i == nseg - 1)
10156d743f04SSascha Wildner                 	sgl_ptr->Flags = IEEE_SGE_FLAGS_END_OF_LIST;
10166d743f04SSascha Wildner             }
10176d743f04SSascha Wildner 	    	sgl_ptr++;
10186d743f04SSascha Wildner 	    	sg_processed = i + 1;
10196d743f04SSascha Wildner 	    	/*
10206d743f04SSascha Wildner              * Prepare chain element
10216d743f04SSascha Wildner              */
10226d743f04SSascha Wildner 			if ((sg_processed == (sc->max_sge_in_main_msg - 1)) &&
10236d743f04SSascha Wildner 				(nseg > sc->max_sge_in_main_msg)) {
10246d743f04SSascha Wildner 					pMpi25IeeeSgeChain64_t sg_chain;
10256d743f04SSascha Wildner 					if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY)) {
10266d743f04SSascha Wildner 						if ((cmd->io_request->IoFlags & MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH)
10276d743f04SSascha Wildner 													!= MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH)
10286d743f04SSascha Wildner 							 cmd->io_request->ChainOffset = sc->chain_offset_io_request;
10296d743f04SSascha Wildner 					   else
10306d743f04SSascha Wildner 							   cmd->io_request->ChainOffset = 0;
10316d743f04SSascha Wildner 					} else
10326d743f04SSascha Wildner 							 cmd->io_request->ChainOffset = sc->chain_offset_io_request;
10336d743f04SSascha Wildner 					sg_chain = sgl_ptr;
10346d743f04SSascha Wildner 					if ((sc->device_id == MRSAS_INVADER) || (sc->device_id == MRSAS_FURY))
10356d743f04SSascha Wildner 						 sg_chain->Flags = IEEE_SGE_FLAGS_CHAIN_ELEMENT;
10366d743f04SSascha Wildner 				    else
10376d743f04SSascha Wildner 						 sg_chain->Flags = (IEEE_SGE_FLAGS_CHAIN_ELEMENT | MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR);
10386d743f04SSascha Wildner 					sg_chain->Length = (sizeof(MPI2_SGE_IO_UNION) * (nseg - sg_processed));
10396d743f04SSascha Wildner 					sg_chain->Address = cmd->chain_frame_phys_addr;
10406d743f04SSascha Wildner 					sgl_ptr = (pMpi25IeeeSgeChain64_t)cmd->chain_frame;
10416d743f04SSascha Wildner 			}
10426d743f04SSascha Wildner         }
10436d743f04SSascha Wildner     }
10446d743f04SSascha Wildner     cmd->sge_count = nseg;
10456d743f04SSascha Wildner }
10466d743f04SSascha Wildner 
10476d743f04SSascha Wildner /**
10486d743f04SSascha Wildner  * mrsas_freeze_simq:        Freeze SIM queue
10496d743f04SSascha Wildner  * input:                    Pointer to command packet
10506d743f04SSascha Wildner  *                           Pointer to SIM
10516d743f04SSascha Wildner  *
10526d743f04SSascha Wildner  * This function freezes the sim queue.
10536d743f04SSascha Wildner  */
mrsas_freeze_simq(struct mrsas_mpt_cmd * cmd,struct cam_sim * sim)10546d743f04SSascha Wildner static void mrsas_freeze_simq(struct mrsas_mpt_cmd *cmd, struct cam_sim *sim)
10556d743f04SSascha Wildner {
10566d743f04SSascha Wildner     union ccb   *ccb = (union ccb *)(cmd->ccb_ptr);
10576d743f04SSascha Wildner 
10586d743f04SSascha Wildner     xpt_freeze_simq(sim, 1);
10596d743f04SSascha Wildner     ccb->ccb_h.status |= CAM_RELEASE_SIMQ;
10606d743f04SSascha Wildner     ccb->ccb_h.status |= CAM_REQUEUE_REQ;
10616d743f04SSascha Wildner }
10626d743f04SSascha Wildner 
mrsas_xpt_freeze(struct mrsas_softc * sc)10636d743f04SSascha Wildner void mrsas_xpt_freeze(struct mrsas_softc *sc) {
10646d743f04SSascha Wildner     xpt_freeze_simq(sc->sim_0, 1);
10656d743f04SSascha Wildner     xpt_freeze_simq(sc->sim_1, 1);
10666d743f04SSascha Wildner }
10676d743f04SSascha Wildner 
mrsas_xpt_release(struct mrsas_softc * sc)10686d743f04SSascha Wildner void mrsas_xpt_release(struct mrsas_softc *sc) {
10696d743f04SSascha Wildner     xpt_release_simq(sc->sim_0, 1);
10706d743f04SSascha Wildner     xpt_release_simq(sc->sim_1, 1);
10716d743f04SSascha Wildner }
10726d743f04SSascha Wildner 
10736d743f04SSascha Wildner /**
10746d743f04SSascha Wildner  * mrsas_cmd_done:           Perform remaining command completion
10756d743f04SSascha Wildner  * input:                    Adapter instance soft state
10766d743f04SSascha Wildner  *                           Pointer to command packet
10776d743f04SSascha Wildner  *
10786d743f04SSascha Wildner  * This function calls ummap request and releases the MPT command.
10796d743f04SSascha Wildner  */
mrsas_cmd_done(struct mrsas_softc * sc,struct mrsas_mpt_cmd * cmd)10806d743f04SSascha Wildner void mrsas_cmd_done(struct mrsas_softc *sc, struct mrsas_mpt_cmd *cmd)
10816d743f04SSascha Wildner {
10826d743f04SSascha Wildner     callout_stop(&cmd->cm_callout);
10836d743f04SSascha Wildner     mrsas_unmap_request(sc, cmd);
10846d743f04SSascha Wildner     lockmgr(&sc->sim_lock, LK_EXCLUSIVE);
10856d743f04SSascha Wildner     xpt_done(cmd->ccb_ptr);
10866d743f04SSascha Wildner     cmd->ccb_ptr = NULL;
10876d743f04SSascha Wildner     lockmgr(&sc->sim_lock, LK_RELEASE);
10886d743f04SSascha Wildner     mrsas_release_mpt_cmd(cmd);
10896d743f04SSascha Wildner }
10906d743f04SSascha Wildner 
10916d743f04SSascha Wildner /**
10926d743f04SSascha Wildner  * mrsas_poll:               Polling entry point
10936d743f04SSascha Wildner  * input:                    Pointer to SIM
10946d743f04SSascha Wildner  *
10956d743f04SSascha Wildner  * This is currently a stub function.
10966d743f04SSascha Wildner  */
mrsas_poll(struct cam_sim * sim)10976d743f04SSascha Wildner static void mrsas_poll(struct cam_sim *sim)
10986d743f04SSascha Wildner {
10996d743f04SSascha Wildner     struct mrsas_softc *sc = (struct mrsas_softc *)cam_sim_softc(sim);
11006d743f04SSascha Wildner     mrsas_isr((void *) sc);
11016d743f04SSascha Wildner }
11026d743f04SSascha Wildner 
11036d743f04SSascha Wildner static void
mrsas_rescan_callback(struct cam_periph * periph,union ccb * ccb)11046d743f04SSascha Wildner mrsas_rescan_callback(struct cam_periph *periph, union ccb *ccb)
11056d743f04SSascha Wildner {
11066d743f04SSascha Wildner 	xpt_free_path(ccb->ccb_h.path);
1107*cec957e9SMatthew Dillon 	xpt_free_ccb(&ccb->ccb_h);
11086d743f04SSascha Wildner }
11096d743f04SSascha Wildner 
11106d743f04SSascha Wildner /*
11116d743f04SSascha Wildner  * mrsas_bus_scan:           Perform bus scan
11126d743f04SSascha Wildner  * input:                    Adapter instance soft state
11136d743f04SSascha Wildner  *
11146d743f04SSascha Wildner  * This mrsas_bus_scan function is needed for FreeBSD 7.x.  Also, it should
11156d743f04SSascha Wildner  * not be called in FreeBSD 8.x and later versions, where the bus scan is
11166d743f04SSascha Wildner  * automatic.
11176d743f04SSascha Wildner  */
mrsas_bus_scan(struct mrsas_softc * sc)11186d743f04SSascha Wildner int mrsas_bus_scan(struct mrsas_softc *sc)
11196d743f04SSascha Wildner {
11206d743f04SSascha Wildner     union ccb *ccb_0;
11216d743f04SSascha Wildner     union ccb *ccb_1;
11226d743f04SSascha Wildner 
11236d743f04SSascha Wildner     lockmgr(&sc->sim_lock, LK_EXCLUSIVE);
11246d743f04SSascha Wildner     if ((ccb_0 = xpt_alloc_ccb()) == NULL) {
11256d743f04SSascha Wildner         lockmgr(&sc->sim_lock, LK_RELEASE);
11266d743f04SSascha Wildner         return(ENOMEM);
11276d743f04SSascha Wildner     }
11286d743f04SSascha Wildner 
11296d743f04SSascha Wildner     if ((ccb_1 = xpt_alloc_ccb()) == NULL) {
1130*cec957e9SMatthew Dillon 	xpt_free_ccb(&ccb_0->ccb_h);
11316d743f04SSascha Wildner         lockmgr(&sc->sim_lock, LK_RELEASE);
11326d743f04SSascha Wildner         return(ENOMEM);
11336d743f04SSascha Wildner     }
11346d743f04SSascha Wildner 
11356d743f04SSascha Wildner     if (xpt_create_path(&ccb_0->ccb_h.path, xpt_periph, cam_sim_path(sc->sim_0),
11366d743f04SSascha Wildner             CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP){
1137*cec957e9SMatthew Dillon         xpt_free_ccb(&ccb_0->ccb_h);
1138*cec957e9SMatthew Dillon         xpt_free_ccb(&ccb_1->ccb_h);
11396d743f04SSascha Wildner         lockmgr(&sc->sim_lock, LK_RELEASE);
11406d743f04SSascha Wildner         return(EIO);
11416d743f04SSascha Wildner     }
11426d743f04SSascha Wildner 
11436d743f04SSascha Wildner     if (xpt_create_path(&ccb_1->ccb_h.path, xpt_periph, cam_sim_path(sc->sim_1),
11446d743f04SSascha Wildner             CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP){
1145*cec957e9SMatthew Dillon         xpt_free_ccb(&ccb_0->ccb_h);
1146*cec957e9SMatthew Dillon         xpt_free_ccb(&ccb_1->ccb_h);
11476d743f04SSascha Wildner         lockmgr(&sc->sim_lock, LK_RELEASE);
11486d743f04SSascha Wildner         return(EIO);
11496d743f04SSascha Wildner     }
11506d743f04SSascha Wildner 
11516d743f04SSascha Wildner     xpt_setup_ccb(&ccb_0->ccb_h, ccb_0->ccb_h.path, 5/*priority (low)*/);
11526d743f04SSascha Wildner     ccb_0->ccb_h.func_code = XPT_SCAN_BUS;
11536d743f04SSascha Wildner     ccb_0->ccb_h.cbfcnp = mrsas_rescan_callback;
11546d743f04SSascha Wildner     ccb_0->crcn.flags = CAM_FLAG_NONE;
11556d743f04SSascha Wildner     xpt_action(ccb_0); /* scan is now in progress */
11566d743f04SSascha Wildner 
11576d743f04SSascha Wildner     xpt_setup_ccb(&ccb_1->ccb_h, ccb_1->ccb_h.path, 5/*priority (low)*/);
11586d743f04SSascha Wildner     ccb_1->ccb_h.func_code = XPT_SCAN_BUS;
11596d743f04SSascha Wildner     ccb_1->ccb_h.cbfcnp = mrsas_rescan_callback;
11606d743f04SSascha Wildner     ccb_1->crcn.flags = CAM_FLAG_NONE;
11616d743f04SSascha Wildner     xpt_action(ccb_1); /* scan is now in progress */
11626d743f04SSascha Wildner 
11636d743f04SSascha Wildner     lockmgr(&sc->sim_lock, LK_RELEASE);
11646d743f04SSascha Wildner 
11656d743f04SSascha Wildner     return(0);
11666d743f04SSascha Wildner }
11676d743f04SSascha Wildner 
11686d743f04SSascha Wildner /*
11696d743f04SSascha Wildner  * mrsas_bus_scan_sim:		Perform bus scan per SIM
11706d743f04SSascha Wildner  * input:					Adapter instance soft state
11716d743f04SSascha Wildner  * 							This function will be called from Event handler
11726d743f04SSascha Wildner  * 							on LD creation/deletion, JBOD on/off.
11736d743f04SSascha Wildner  */
mrsas_bus_scan_sim(struct mrsas_softc * sc,struct cam_sim * sim)11746d743f04SSascha Wildner int mrsas_bus_scan_sim(struct mrsas_softc *sc, struct cam_sim *sim)
11756d743f04SSascha Wildner {
11766d743f04SSascha Wildner     union ccb *ccb;
11776d743f04SSascha Wildner 
11786d743f04SSascha Wildner     lockmgr(&sc->sim_lock, LK_EXCLUSIVE);
11796d743f04SSascha Wildner     if ((ccb = xpt_alloc_ccb()) == NULL) {
11806d743f04SSascha Wildner         lockmgr(&sc->sim_lock, LK_RELEASE);
11816d743f04SSascha Wildner         return(ENOMEM);
11826d743f04SSascha Wildner     }
11836d743f04SSascha Wildner     if (xpt_create_path(&ccb->ccb_h.path, xpt_periph, cam_sim_path(sim),
11846d743f04SSascha Wildner             CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD) != CAM_REQ_CMP){
1185*cec957e9SMatthew Dillon         xpt_free_ccb(&ccb->ccb_h);
11866d743f04SSascha Wildner         lockmgr(&sc->sim_lock, LK_RELEASE);
11876d743f04SSascha Wildner         return(EIO);
11886d743f04SSascha Wildner     }
11896d743f04SSascha Wildner     xpt_setup_ccb(&ccb->ccb_h, ccb->ccb_h.path, 5/*priority (low)*/);
11906d743f04SSascha Wildner     ccb->ccb_h.func_code = XPT_SCAN_BUS;
11916d743f04SSascha Wildner     ccb->ccb_h.cbfcnp = mrsas_rescan_callback;
11926d743f04SSascha Wildner     ccb->crcn.flags = CAM_FLAG_NONE;
11936d743f04SSascha Wildner     xpt_action(ccb); /* scan is now in progress */
11946d743f04SSascha Wildner 
11956d743f04SSascha Wildner     lockmgr(&sc->sim_lock, LK_RELEASE);
11966d743f04SSascha Wildner 
11976d743f04SSascha Wildner     return(0);
11986d743f04SSascha Wildner }
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