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Staging: hv: storvsc: Introduce defines for srb status codes 

Introduce defines for srb status codes.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
K. Y. Srinivasan 2012-01-12 12:37:57 -08:00 committed by Greg Kroah-Hartman
parent c77b63b639
commit 160463204f
1 changed files with 16 additions and 5 deletions
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21
drivers/staging/hv/storvsc_drv.c
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@ -257,6 +257,16 @@ enum storvsc_request_type {
UNKNOWN_TYPE,
};
/*
* SRB status codes and masks; a subset of the codes used here.
*/
#define SRB_STATUS_AUTOSENSE_VALID 0x80
#define SRB_STATUS_INVALID_LUN 0x20
#define SRB_STATUS_SUCCESS 0x01
#define SRB_STATUS_ERROR 0x04
struct hv_storvsc_request {
struct hv_device *device;
@ -561,7 +571,7 @@ static void storvsc_on_io_completion(struct hv_device *device,
if ((stor_pkt->vm_srb.cdb[0] == INQUIRY) ||
(stor_pkt->vm_srb.cdb[0] == MODE_SENSE)) {
vstor_packet->vm_srb.scsi_status = 0;
vstor_packet->vm_srb.srb_status = 0x1;
vstor_packet->vm_srb.srb_status = SRB_STATUS_SUCCESS;
}
@ -572,7 +582,7 @@ static void storvsc_on_io_completion(struct hv_device *device,
vstor_packet->vm_srb.sense_info_length;
if (vstor_packet->vm_srb.scsi_status != 0 ||
vstor_packet->vm_srb.srb_status != 1){
vstor_packet->vm_srb.srb_status != SRB_STATUS_SUCCESS){
dev_warn(&device->device,
"cmd 0x%x scsi status 0x%x srb status 0x%x\n",
stor_pkt->vm_srb.cdb[0],
@ -582,7 +592,8 @@ static void storvsc_on_io_completion(struct hv_device *device,
if ((vstor_packet->vm_srb.scsi_status & 0xFF) == 0x02) {
/* CHECK_CONDITION */
if (vstor_packet->vm_srb.srb_status & 0x80) {
if (vstor_packet->vm_srb.srb_status &
SRB_STATUS_AUTOSENSE_VALID) {
/* autosense data available */
dev_warn(&device->device,
"stor pkt %p autosense data valid - len %d\n",
@ -1191,7 +1202,7 @@ static void storvsc_command_completion(struct hv_storvsc_request *request)
* error recovery strategies would have already been
* deployed on the host side.
*/
if (vm_srb->srb_status == 0x4)
if (vm_srb->srb_status == SRB_STATUS_ERROR)
scmnd->result = DID_TARGET_FAILURE << 16;
else
scmnd->result = vm_srb->scsi_status;
@ -1199,7 +1210,7 @@ static void storvsc_command_completion(struct hv_storvsc_request *request)
/*
* If the LUN is invalid; remove the device.
*/
if (vm_srb->srb_status == 0x20) {
if (vm_srb->srb_status == SRB_STATUS_INVALID_LUN) {
struct storvsc_device *stor_dev;
struct hv_device *dev = host_dev->dev;
struct Scsi_Host *host;