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[SCSI] bfa: sg addr big endian fix 

sg address in IO request is not set up correctly for big endian platform.
add new macros to properly swap the address.

Signed-off-by: Jing Huang <huangj@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Jing Huang 2010-03-19 11:07:36 -07:00 committed by James Bottomley
parent 42b426ecb4
commit 077424e2e2
2 changed files with 17 additions and 2 deletions
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4
drivers/scsi/bfa/bfa_ioim.c
View File

@ -758,7 +758,7 @@ bfa_ioim_send_ioreq(struct bfa_ioim_s *ioim)
sge = &m->sges[0];
if (ioim->nsges) {
sg = (struct scatterlist *)scsi_sglist(cmnd);
addr = (u64) sg_dma_address(sg);
addr = bfa_os_sgaddr(sg_dma_address(sg));
sge->sga = *(union bfi_addr_u *) &addr;
pgdlen = sg_dma_len(sg);
sge->sg_len = pgdlen;
@ -891,7 +891,7 @@ bfa_ioim_sgpg_setup(struct bfa_ioim_s *ioim)
pgcumsz = 0;
for (i = 0; i < nsges; i++, sge++, sgeid++, sg = sg_next(sg)) {
addr = (u64) sg_dma_address(sg);
addr = bfa_os_sgaddr(sg_dma_address(sg));
sge->sga = *(union bfi_addr_u *) &addr;
sge->sg_len = sg_dma_len(sg);
pgcumsz += sge->sg_len;

15
drivers/scsi/bfa/bfa_os_inc.h
View File

@ -50,6 +50,10 @@
#include <scsi/scsi_transport_fc.h>
#include <scsi/scsi_transport.h>
#ifdef __BIG_ENDIAN
#define __BIGENDIAN
#endif
#define BFA_ERR KERN_ERR
#define BFA_WARNING KERN_WARNING
#define BFA_NOTICE KERN_NOTICE
@ -123,6 +127,15 @@ int bfa_os_MWB(void *);
(((_x) & 0x00ff0000) >> 8) | \
(((_x) & 0xff000000) >> 24))
#define bfa_os_swap_sgaddr(_x) ((u64)( \
(((u64)(_x) & (u64)0x00000000000000ffull) << 32) | \
(((u64)(_x) & (u64)0x000000000000ff00ull) << 32) | \
(((u64)(_x) & (u64)0x0000000000ff0000ull) << 32) | \
(((u64)(_x) & (u64)0x00000000ff000000ull) << 32) | \
(((u64)(_x) & (u64)0x000000ff00000000ull) >> 32) | \
(((u64)(_x) & (u64)0x0000ff0000000000ull) >> 32) | \
(((u64)(_x) & (u64)0x00ff000000000000ull) >> 32) | \
(((u64)(_x) & (u64)0xff00000000000000ull) >> 32)))
#ifndef __BIGENDIAN
#define bfa_os_htons(_x) ((u16)((((_x) & 0xff00) >> 8) | \
@ -133,6 +146,7 @@ int bfa_os_MWB(void *);
#define bfa_os_hton3b(_x) bfa_swap_3b(_x)
#define bfa_os_wtole(_x) (_x)
#define bfa_os_sgaddr(_x) (_x)
#else
@ -141,6 +155,7 @@ int bfa_os_MWB(void *);
#define bfa_os_hton3b(_x) (_x)
#define bfa_os_htonll(_x) (_x)
#define bfa_os_wtole(_x) bfa_os_swap32(_x)
#define bfa_os_sgaddr(_x) bfa_os_swap_sgaddr(_x)
#endif