static void
mfi_disk_strategy(struct bio *bio)
{
struct mfi_disk *sc;
struct mfi_softc *controller;
sc = bio->bio_disk->d_drv1;
if (sc == NULL) {
bio->bio_error = EINVAL;
bio->bio_flags |= BIO_ERROR;
bio->bio_resid = bio->bio_bcount;
biodone(bio);
return;
}
controller = sc->ld_controller;
bio->bio_driver1 = (void *)(uintptr_t)sc->ld_id;
/* Mark it as LD IO */
bio->bio_driver2 = (void *)MFI_LD_IO;
mtx_lock(&controller->mfi_io_lock);
mfi_enqueue_bio(controller, bio);
mfi_startio(controller);
mtx_unlock(&controller->mfi_io_lock);
return;
}
static int
mfi_disk_strategy(struct dev_strategy_args *ap)
{
struct bio *bio = ap->a_bio;
struct buf *bp = bio->bio_buf;
struct mfi_disk *sc = ap->a_head.a_dev->si_drv1;
struct mfi_softc *controller = sc->ld_controller;
if (sc == NULL) {
bp->b_error = EINVAL;
bp->b_flags |= B_ERROR;
bp->b_resid = bp->b_bcount;
biodone(bio);
return (0);
}
if (controller->hw_crit_error) {
bp->b_error = EBUSY;
return (0);
}
if (controller->issuepend_done == 0) {
bp->b_error = EBUSY;
return (0);
}
/*
* XXX swildner
*
* If it's a null transfer, do nothing. FreeBSD's original driver
* doesn't have this, but that caused hard error messages (even
* though everything else continued to work fine). Interestingly,
* only when HAMMER was used.
*
* Several others of our RAID drivers have this check, such as
* aac(4) and ida(4), so we insert it here, too.
*
* The cause of null transfers is yet unknown.
*/
if (bp->b_bcount == 0) {
bp->b_resid = bp->b_bcount;
biodone(bio);
return (0);
}
bio->bio_driver_info = sc;
lockmgr(&controller->mfi_io_lock, LK_EXCLUSIVE);
mfi_enqueue_bio(controller, bio);
devstat_start_transaction(&sc->ld_devstat);
mfi_startio(controller);
lockmgr(&controller->mfi_io_lock, LK_RELEASE);
return (0);
}
static void
mfip_cam_action(struct cam_sim *sim, union ccb *ccb)
{
struct mfip_softc *sc = cam_sim_softc(sim);
struct mfi_softc *mfisc = sc->mfi_sc;
mtx_assert(&mfisc->mfi_io_lock, MA_OWNED);
switch (ccb->ccb_h.func_code) {
case XPT_PATH_INQ:
{
struct ccb_pathinq *cpi = &ccb->cpi;
cpi->version_num = 1;
cpi->hba_inquiry = PI_SDTR_ABLE|PI_TAG_ABLE|PI_WIDE_16;
cpi->target_sprt = 0;
cpi->hba_misc = PIM_NOBUSRESET|PIM_SEQSCAN;
cpi->hba_eng_cnt = 0;
cpi->max_target = MFI_SCSI_MAX_TARGETS;
cpi->max_lun = MFI_SCSI_MAX_LUNS;
cpi->initiator_id = MFI_SCSI_INITIATOR_ID;
strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
strncpy(cpi->hba_vid, "LSI", HBA_IDLEN);
strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN);
cpi->unit_number = cam_sim_unit(sim);
cpi->bus_id = cam_sim_bus(sim);
cpi->base_transfer_speed = 150000;
cpi->transport = XPORT_SAS;
cpi->transport_version = 0;
cpi->protocol = PROTO_SCSI;
cpi->protocol_version = SCSI_REV_2;
cpi->ccb_h.status = CAM_REQ_CMP;
break;
}
case XPT_RESET_BUS:
ccb->ccb_h.status = CAM_REQ_CMP;
break;
case XPT_RESET_DEV:
ccb->ccb_h.status = CAM_REQ_CMP;
break;
case XPT_GET_TRAN_SETTINGS:
{
struct ccb_trans_settings_sas *sas =
&ccb->cts.xport_specific.sas;
ccb->cts.protocol = PROTO_SCSI;
ccb->cts.protocol_version = SCSI_REV_2;
ccb->cts.transport = XPORT_SAS;
ccb->cts.transport_version = 0;
sas->valid &= ~CTS_SAS_VALID_SPEED;
sas->bitrate = 150000;
ccb->ccb_h.status = CAM_REQ_CMP;
break;
}
case XPT_SET_TRAN_SETTINGS:
ccb->ccb_h.status = CAM_FUNC_NOTAVAIL;
break;
case XPT_SCSI_IO:
{
struct ccb_hdr *ccbh = &ccb->ccb_h;
struct ccb_scsiio *csio = &ccb->csio;
ccbh->status = CAM_REQ_INPROG;
if (csio->cdb_len > MFI_SCSI_MAX_CDB_LEN) {
ccbh->status = CAM_REQ_INVALID;
break;
}
if ((ccbh->flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
if (ccbh->flags & CAM_DATA_PHYS) {
ccbh->status = CAM_REQ_INVALID;
break;
}
if (ccbh->flags & CAM_SCATTER_VALID) {
ccbh->status = CAM_REQ_INVALID;
break;
}
}
ccbh->ccb_mfip_ptr = sc;
TAILQ_INSERT_TAIL(&mfisc->mfi_cam_ccbq, ccbh, sim_links.tqe);
mfi_startio(mfisc);
return;
}
default:
ccb->ccb_h.status = CAM_REQ_INVALID;
break;
}
xpt_done(ccb);
return;
}