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[SCSI] gdth: remove command accessors 

These are no longer necessary.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Tested-by: Joerg Dorchain: <joerg@dorchain.net>
Tested-by: Stefan Priebe <s.priebe@allied-internet.ag>
Tested-by: Jon Chelton <jchelton@ffpglobal.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Boaz Harrosh 2008-02-27 15:31:20 -08:00 committed by James Bottomley
parent 68066c3ed1
commit d35055a0f2
1 changed files with 14 additions and 59 deletions
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73
drivers/scsi/gdth.c
View File

@ -85,10 +85,10 @@
/* The meaning of the Scsi_Pointer members in this driver is as follows:
* ptr: Chaining
* this_residual: gdth_bufflen
* buffer: gdth_sglist
* this_residual: unused
* buffer: unused
* dma_handle: unused
* buffers_residual: gdth_sg_count
* buffers_residual: unused
* Status: unused
* Message: unused
* have_data_in: unused
@ -372,47 +372,6 @@ static const struct file_operations gdth_fops = {
.release = gdth_close,
};
/*
* gdth scsi_command access wrappers.
* below 6 functions are used throughout the driver to access scsi_command's
* io parameters. The reason we do not use the regular accessors from
* scsi_cmnd.h is because of gdth_execute(). Since it is unrecommended for
* llds to directly set scsi_cmnd's IO members. This driver will use SCp
* members for IO parameters, and will copy scsi_cmnd's members to Scp
* members in queuecommand. For internal commands through gdth_execute()
* SCp's members will be set directly.
*/
static inline unsigned gdth_bufflen(struct scsi_cmnd *cmd)
{
return (unsigned)cmd->SCp.this_residual;
}
static inline void gdth_set_bufflen(struct scsi_cmnd *cmd, unsigned bufflen)
{
cmd->SCp.this_residual = bufflen;
}
static inline unsigned gdth_sg_count(struct scsi_cmnd *cmd)
{
return (unsigned)cmd->SCp.buffers_residual;
}
static inline void gdth_set_sg_count(struct scsi_cmnd *cmd, unsigned sg_count)
{
cmd->SCp.buffers_residual = sg_count;
}
static inline struct scatterlist *gdth_sglist(struct scsi_cmnd *cmd)
{
return cmd->SCp.buffer;
}
static inline void gdth_set_sglist(struct scsi_cmnd *cmd,
struct scatterlist *sglist)
{
cmd->SCp.buffer = sglist;
}
#include "gdth_proc.h"
#include "gdth_proc.c"
@ -2337,12 +2296,12 @@ static void gdth_next(gdth_ha_str *ha)
static void gdth_copy_internal_data(gdth_ha_str *ha, Scsi_Cmnd *scp,
char *buffer, ushort count)
{
ushort cpcount,i, max_sg = gdth_sg_count(scp);
ushort cpcount,i, max_sg = scsi_sg_count(scp);
ushort cpsum,cpnow;
struct scatterlist *sl;
char *address;
cpcount = min_t(ushort, count, gdth_bufflen(scp));
cpcount = min_t(ushort, count, scsi_bufflen(scp));
if (cpcount) {
cpsum=0;
@ -2350,7 +2309,7 @@ static void gdth_copy_internal_data(gdth_ha_str *ha, Scsi_Cmnd *scp,
unsigned long flags;
cpnow = (ushort)sl->length;
TRACE(("copy_internal() now %d sum %d count %d %d\n",
cpnow, cpsum, cpcount, gdth_bufflen(scp)));
cpnow, cpsum, cpcount, scsi_bufflen(scp)));
if (cpsum+cpnow > cpcount)
cpnow = cpcount - cpsum;
cpsum += cpnow;
@ -2573,10 +2532,10 @@ static int gdth_fill_cache_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, ushort hdrive)
cmdp->u.cache.BlockCnt = blockcnt;
}
if (gdth_bufflen(scp)) {
if (scsi_bufflen(scp)) {
cmndinfo->dma_dir = (read_write == 1 ?
PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE);
sgcnt = pci_map_sg(ha->pdev, gdth_sglist(scp), gdth_sg_count(scp),
sgcnt = pci_map_sg(ha->pdev, scsi_sglist(scp), scsi_sg_count(scp),
cmndinfo->dma_dir);
if (mode64) {
struct scatterlist *sl;
@ -2723,7 +2682,7 @@ static int gdth_fill_raw_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, unchar b)
cmdp->u.raw64.lun = l;
cmdp->u.raw64.bus = b;
cmdp->u.raw64.priority = 0;
cmdp->u.raw64.sdlen = gdth_bufflen(scp);
cmdp->u.raw64.sdlen = scsi_bufflen(scp);
cmdp->u.raw64.sense_len = 16;
cmdp->u.raw64.sense_data = sense_paddr;
cmdp->u.raw64.direction =
@ -2740,7 +2699,7 @@ static int gdth_fill_raw_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, unchar b)
cmdp->u.raw.bus = b;
cmdp->u.raw.priority = 0;
cmdp->u.raw.link_p = 0;
cmdp->u.raw.sdlen = gdth_bufflen(scp);
cmdp->u.raw.sdlen = scsi_bufflen(scp);
cmdp->u.raw.sense_len = 16;
cmdp->u.raw.sense_data = sense_paddr;
cmdp->u.raw.direction =
@ -2749,9 +2708,9 @@ static int gdth_fill_raw_cmd(gdth_ha_str *ha, Scsi_Cmnd *scp, unchar b)
cmdp->u.raw.sg_ranz = 0;
}
if (gdth_bufflen(scp)) {
if (scsi_bufflen(scp)) {
cmndinfo->dma_dir = PCI_DMA_BIDIRECTIONAL;
sgcnt = pci_map_sg(ha->pdev, gdth_sglist(scp), gdth_sg_count(scp),
sgcnt = pci_map_sg(ha->pdev, scsi_sglist(scp), scsi_sg_count(scp),
cmndinfo->dma_dir);
if (mode64) {
struct scatterlist *sl;
@ -3372,8 +3331,8 @@ static int gdth_sync_event(gdth_ha_str *ha, int service, unchar index,
/* retry */
return 2;
}
if (gdth_bufflen(scp))
pci_unmap_sg(ha->pdev, gdth_sglist(scp), gdth_sg_count(scp),
if (scsi_bufflen(scp))
pci_unmap_sg(ha->pdev, scsi_sglist(scp), scsi_sg_count(scp),
cmndinfo->dma_dir);
if (cmndinfo->sense_paddr)
@ -4015,10 +3974,6 @@ static int gdth_queuecommand(struct scsi_cmnd *scp,
gdth_update_timeout(scp, scp->timeout_per_command * 6);
cmndinfo->priority = DEFAULT_PRI;
gdth_set_bufflen(scp, scsi_bufflen(scp));
gdth_set_sg_count(scp, scsi_sg_count(scp));
gdth_set_sglist(scp, scsi_sglist(scp));
return __gdth_queuecommand(ha, scp, cmndinfo);
}