Differential D11271 Diff 29883 head/sys/dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c

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head/sys/dev/hyperv/storvsc/hv_storvsc_drv_freebsd.c

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storvsc_io_done(struct hv_storvsc_request *reqp)		storvsc_io_done(struct hv_storvsc_request *reqp)
{		{
union ccb *ccb = reqp->ccb;		union ccb *ccb = reqp->ccb;
struct ccb_scsiio *csio = &ccb->csio;		struct ccb_scsiio *csio = &ccb->csio;
struct storvsc_softc *sc = reqp->softc;		struct storvsc_softc *sc = reqp->softc;
struct vmscsi_req *vm_srb = &reqp->vstor_packet.u.vm_srb;		struct vmscsi_req *vm_srb = &reqp->vstor_packet.u.vm_srb;
bus_dma_segment_t *ori_sglist = NULL;		bus_dma_segment_t *ori_sglist = NULL;
int ori_sg_count = 0;		int ori_sg_count = 0;
		const struct scsi_generic *cmd;

/* destroy bounce buffer if it is used */		/* destroy bounce buffer if it is used */
if (reqp->bounce_sgl_count) {		if (reqp->bounce_sgl_count) {
ori_sglist = (bus_dma_segment_t *)ccb->csio.data_ptr;		ori_sglist = (bus_dma_segment_t *)ccb->csio.data_ptr;
ori_sg_count = ccb->csio.sglist_cnt;		ori_sg_count = ccb->csio.sglist_cnt;

/*		/*
* If it is READ operation, we should copy back the data		* If it is READ operation, we should copy back the data
Show All 34 Lines	#ifdef notyet
* between this routine and the timer handler.		* between this routine and the timer handler.
* Note that we need to make sure reqp is not freed when timer		* Note that we need to make sure reqp is not freed when timer
* handler is using or will use it.		* handler is using or will use it.
*/		*/
if (ccb->ccb_h.timeout != CAM_TIME_INFINITY) {		if (ccb->ccb_h.timeout != CAM_TIME_INFINITY) {
callout_drain(&reqp->callout);		callout_drain(&reqp->callout);
}		}
#endif		#endif
		cmd = (const struct scsi_generic *)
		((ccb->ccb_h.flags & CAM_CDB_POINTER) ?
		csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes);

ccb->ccb_h.status &= ~CAM_SIM_QUEUED;		ccb->ccb_h.status &= ~CAM_SIM_QUEUED;
ccb->ccb_h.status &= ~CAM_STATUS_MASK;		ccb->ccb_h.status &= ~CAM_STATUS_MASK;
int srb_status = SRB_STATUS(vm_srb->srb_status);		int srb_status = SRB_STATUS(vm_srb->srb_status);
if (vm_srb->scsi_status == SCSI_STATUS_OK) {		if (vm_srb->scsi_status == SCSI_STATUS_OK) {
const struct scsi_generic *cmd;

cmd = (const struct scsi_generic *)
((ccb->ccb_h.flags & CAM_CDB_POINTER) ?
csio->cdb_io.cdb_ptr : csio->cdb_io.cdb_bytes);
if (srb_status != SRB_STATUS_SUCCESS) {		if (srb_status != SRB_STATUS_SUCCESS) {
/*		/*
* If there are errors, for example, invalid LUN,		* If there are errors, for example, invalid LUN,
* host will inform VM through SRB status.		* host will inform VM through SRB status.
*/		*/
if (bootverbose) {		if (bootverbose) {
if (srb_status == SRB_STATUS_INVALID_LUN) {		if (srb_status == SRB_STATUS_INVALID_LUN) {
xpt_print(ccb->ccb_h.path,		xpt_print(ccb->ccb_h.path,
▲ Show 20 Lines • Show All 81 Lines • ▼ Show 20 Lines	if (cmd->opcode == INQUIRY &&
xpt_print(ccb->ccb_h.path,		xpt_print(ccb->ccb_h.path,
"storvsc upgrades "		"storvsc upgrades "
"SPC2 to SPC3\n");		"SPC2 to SPC3\n");
}		}
}		}
}		}
}		}
} else {		} else {
		/**
		* On Some Windows hosts TEST_UNIT_READY command can return
		* SRB_STATUS_ERROR and sense data, for example, asc=0x3a,1
		* "(Medium not present - tray closed)". This error can be
		* ignored since it will be sent to host periodically.
		*/
		boolean_t unit_not_ready = \
		vm_srb->scsi_status == SCSI_STATUS_CHECK_COND &&
		cmd->opcode == TEST_UNIT_READY &&
		srb_status == SRB_STATUS_ERROR;
		if (!unit_not_ready && bootverbose) {
mtx_lock(&sc->hs_lock);		mtx_lock(&sc->hs_lock);
xpt_print(ccb->ccb_h.path,		xpt_print(ccb->ccb_h.path,
"storvsc scsi_status = %d\n",		"storvsc scsi_status = %d, srb_status = %d\n",
vm_srb->scsi_status);		vm_srb->scsi_status, srb_status);
mtx_unlock(&sc->hs_lock);		mtx_unlock(&sc->hs_lock);
		}
ccb->ccb_h.status \|= CAM_SCSI_STATUS_ERROR;		ccb->ccb_h.status \|= CAM_SCSI_STATUS_ERROR;
}		}

ccb->csio.scsi_status = (vm_srb->scsi_status & 0xFF);		ccb->csio.scsi_status = (vm_srb->scsi_status & 0xFF);
ccb->csio.resid = ccb->csio.dxfer_len - vm_srb->transfer_len;		ccb->csio.resid = ccb->csio.dxfer_len - vm_srb->transfer_len;

if (reqp->sense_info_len != 0) {		if (reqp->sense_info_len != 0) {
csio->sense_resid = csio->sense_len - reqp->sense_info_len;		csio->sense_resid = csio->sense_len - reqp->sense_info_len;
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