diff options
Diffstat (limited to 'drivers/scsi/storvsc_drv.c')
| -rw-r--r-- | drivers/scsi/storvsc_drv.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c index 3c6584ff65c1..6c52d1411a73 100644 --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -132,6 +132,8 @@ struct hv_fc_wwn_packet { #define SRB_FLAGS_PORT_DRIVER_RESERVED 0x0F000000 #define SRB_FLAGS_CLASS_DRIVER_RESERVED 0xF0000000 +#define SP_UNTAGGED ((unsigned char) ~0) +#define SRB_SIMPLE_TAG_REQUEST 0x20 /* * Platform neutral description of a scsi request - @@ -1041,6 +1043,13 @@ static void storvsc_handle_error(struct vmscsi_request *vm_srb, switch (vm_srb->srb_status) { case SRB_STATUS_ERROR: /* + * Let upper layer deal with error when + * sense message is present. + */ + + if (vm_srb->srb_status & SRB_STATUS_AUTOSENSE_VALID) + break; + /* * If there is an error; offline the device since all * error recovery strategies would have already been * deployed on the host side. However, if the command @@ -1588,6 +1597,13 @@ static int storvsc_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *scmnd) (SRB_FLAGS_QUEUE_ACTION_ENABLE | SRB_FLAGS_DISABLE_SYNCH_TRANSFER); + if (scmnd->device->tagged_supported) { + vm_srb->win8_extension.srb_flags |= + (SRB_FLAGS_QUEUE_ACTION_ENABLE | SRB_FLAGS_NO_QUEUE_FREEZE); + vm_srb->win8_extension.queue_tag = SP_UNTAGGED; + vm_srb->win8_extension.queue_action = SRB_SIMPLE_TAG_REQUEST; + } + /* Build the SRB */ switch (scmnd->sc_data_direction) { case DMA_TO_DEVICE: |