From ea09bcc9c298d3057270abd78a973fc678d55c4c Mon Sep 17 00:00:00 2001
From: "Martin K. Petersen" <martin.petersen@oracle.com>
Date: Sat, 23 May 2009 11:43:37 -0400
Subject: sd: Physical block size and alignment support
Extract physical block size and lowest aligned LBA from READ
CAPACITY(16) response and adjust queue parameters.
Report physical block size and alignment when applicable.
[jejb: fix up trailing whitespace]
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
drivers/scsi/sd.h | 1 +
1 file changed, 1 insertion(+)
(limited to 'drivers/scsi/sd.h')
diff --git a/drivers/scsi/sd.h b/drivers/scsi/sd.h
index 708778cf5f06..8474b5bad3fe 100644
--- a/drivers/scsi/sd.h
+++ b/drivers/scsi/sd.h
@@ -45,6 +45,7 @@ struct scsi_disk {
unsigned int openers; /* protected by BKL for now, yuck */
sector_t capacity; /* size in 512-byte sectors */
u32 index;
+ unsigned short hw_sector_size;
u8 media_present;
u8 write_prot;
u8 protection_type;/* Data Integrity Field */
--
cgit