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authorMatthew Wilcox <matthew@wil.cx>2008-06-19 20:02:58 +0400
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-07-12 17:22:30 +0400
commiteac6e8e449647cbb9efee53977c8bfee0aa7d69e (patch)
treefa6ffb7b45f8b99fd139a9993629f9e43119d00f /drivers/scsi/scsi_debug.c
parentf80f868ec463b0463b332cdb704fe5438f013f98 (diff)
downloadlinux-eac6e8e449647cbb9efee53977c8bfee0aa7d69e.tar.xz
[SCSI] scsi_debug: add support for rotation speed
Add support for VPD page b1 to scsi_debug SCSI VPD page b1 reports the nominal rotation speed of the device. Since scsi_debug is ram-based, claim to be a non-rotating medium. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Acked-by: Douglas Gilbert <dougg@torque.net> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/scsi_debug.c')
-rw-r--r--drivers/scsi/scsi_debug.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 3901125455c9..01d11a01ffbf 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -643,6 +643,14 @@ static int inquiry_evpd_b0(unsigned char * arr)
return sizeof(vpdb0_data);
}
+static int inquiry_evpd_b1(unsigned char *arr)
+{
+ memset(arr, 0, 0x3c);
+ arr[0] = 0;
+ arr[1] = 1;
+
+ return 0x3c;
+}
#define SDEBUG_LONG_INQ_SZ 96
#define SDEBUG_MAX_INQ_ARR_SZ 584
@@ -698,6 +706,7 @@ static int resp_inquiry(struct scsi_cmnd * scp, int target,
arr[n++] = 0x88; /* SCSI ports */
arr[n++] = 0x89; /* ATA information */
arr[n++] = 0xb0; /* Block limits (SBC) */
+ arr[n++] = 0xb1; /* Block characteristics (SBC) */
arr[3] = n - 4; /* number of supported VPD pages */
} else if (0x80 == cmd[2]) { /* unit serial number */
arr[1] = cmd[2]; /*sanity */
@@ -737,6 +746,9 @@ static int resp_inquiry(struct scsi_cmnd * scp, int target,
} else if (0xb0 == cmd[2]) { /* Block limits (SBC) */
arr[1] = cmd[2]; /*sanity */
arr[3] = inquiry_evpd_b0(&arr[4]);
+ } else if (0xb1 == cmd[2]) { /* Block characteristics (SBC) */
+ arr[1] = cmd[2]; /*sanity */
+ arr[3] = inquiry_evpd_b1(&arr[4]);
} else {
/* Illegal request, invalid field in cdb */
mk_sense_buffer(devip, ILLEGAL_REQUEST,