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| author | K. Y. Srinivasan | 2011-08-27 20:31:26 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2011-08-29 20:01:08 +0200 |
| commit | 4ed51a21c0f69e1379cf858fc21a9d9022bfe0e7 (patch) | |
| tree | 36611f9171bc6ed7cf8193612406156ed6be6c71 /drivers/staging/hv/storvsc_drv.c | |
| parent | Staging: hv: storvsc: Cleanup storvsc_drv.c after adding the contents of hype... (diff) | |
| download | kernel-qcow2-linux-4ed51a21c0f69e1379cf858fc21a9d9022bfe0e7.tar.gz kernel-qcow2-linux-4ed51a21c0f69e1379cf858fc21a9d9022bfe0e7.tar.xz kernel-qcow2-linux-4ed51a21c0f69e1379cf858fc21a9d9022bfe0e7.zip | |
Staging: hv: storvsc: Fixup srb and scsi status for INQUIRY and MODE_SENSE
The current VHD handler on the Windows Host does not correctly handle
INQUIRY and MODE_SENSE commands with some options. Fixup srb_status
in these cases since the failure is not fatal.
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/hv/storvsc_drv.c')
| -rw-r--r-- | drivers/staging/hv/storvsc_drv.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/staging/hv/storvsc_drv.c b/drivers/staging/hv/storvsc_drv.c index 0bb4e0e48983..72ca25c4b8e2 100644 --- a/drivers/staging/hv/storvsc_drv.c +++ b/drivers/staging/hv/storvsc_drv.c @@ -512,6 +512,23 @@ static void storvsc_on_io_completion(struct hv_device *device, stor_pkt = &request->vstor_packet; + /* + * The current SCSI handling on the host side does + * not correctly handle: + * INQUIRY command with page code parameter set to 0x80 + * MODE_SENSE command with cmd[2] == 0x1c + * + * Setup srb and scsi status so this won't be fatal. + * We do this so we can distinguish truly fatal failues + * (srb status == 0x4) and off-line the device in that case. + */ + + 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; + } + /* Copy over the status...etc */ stor_pkt->vm_srb.scsi_status = vstor_packet->vm_srb.scsi_status; |