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Commit eac6e8e4 authored by Matthew Wilcox's avatar Matthew Wilcox Committed by James Bottomley
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[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: default avatarMatthew Wilcox <willy@linux.intel.com>
Acked-by: default avatarDouglas Gilbert <dougg@torque.net>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@HansenPartnership.com>
parent f80f868e

drivers/scsi/scsi_debug.c

+12 −0
Original line number Diff line number Diff line
@@ -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,