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Commit 1e49f785 authored by Douglas Gilbert's avatar Douglas Gilbert Committed by James Bottomley
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[SCSI] scsi_debug: fix Thin provisioning support 



While testing scsi_debug with these patches I found a
problem with the Block Limits VPD page function. The
length returned by the inquiry_evpd_b0() function was
too short. A patch to fix that and a cosmetic change
(that the form factor of scsi_debug is less than 1.8
inches) is attached.

Signed-off-by: default avatarDouglas Gilbert <dgilbert@interlog.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@suse.de>
parent 851b1642

drivers/scsi/scsi_debug.c

+9 −4
Original line number Original line Diff line number Diff line
@@ -685,10 +685,12 @@ static int inquiry_evpd_89(unsigned char * arr) 
}

}









/* Block limits VPD page (SBC-3) */

static unsigned char vpdb0_data[] = {

static unsigned char vpdb0_data[] = {

	/* from 4th byte */ 0,0,0,4,

	/* from 4th byte */ 0,0,0,4, 0,0,0x4,0, 0,0,0,64,

	0,0,0x4,0,

	0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,

	0,0,0,64,

	0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,

	0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,

};

};





static int inquiry_evpd_b0(unsigned char * arr)

static int inquiry_evpd_b0(unsigned char * arr)
@@ -731,11 +733,14 @@ static int inquiry_evpd_b0(unsigned char * arr) 
	return sizeof(vpdb0_data);

	return sizeof(vpdb0_data);

}

}





/* Block device characteristics VPD page (SBC-3) */

static int inquiry_evpd_b1(unsigned char *arr)

static int inquiry_evpd_b1(unsigned char *arr)

{

{

	memset(arr, 0, 0x3c);

	memset(arr, 0, 0x3c);

	arr[0] = 0;

	arr[0] = 0;

	arr[1] = 1;

	arr[1] = 1;	/* non rotating medium (e.g. solid state) */

	arr[2] = 0;

	arr[3] = 5;	/* less than 1.8" */





	return 0x3c;

	return 0x3c;

}

}