Received from Mark Salyzyn from Adaptec:
This patch removes the duplicate code in the write_callback command
completion handler, and renames read_callback to io_callback. Optimized
the lba calculation into the debug print routine macro to optimize the
i/o code path.
Applies to scsi-misc-2.6 git tree
Signed-off-by: Mark Haverkamp <markh@xxxxxxxx>
Index: scsi-misc-aac-1/drivers/scsi/aacraid/aachba.c
===================================================================
--- scsi-misc-aac-1.orig/drivers/scsi/aacraid/aachba.c 2005-07-01 11:43:00.000000000 -0700
+++ scsi-misc-aac-1/drivers/scsi/aacraid/aachba.c 2005-07-05 13:55:51.000000000 -0700
@@ -814,12 +814,11 @@
}
-static void read_callback(void *context, struct fib * fibptr)
+static void io_callback(void *context, struct fib * fibptr)
{
struct aac_dev *dev;
struct aac_read_reply *readreply;
struct scsi_cmnd *scsicmd;
- u32 lba;
u32 cid;
scsicmd = (struct scsi_cmnd *) context;
@@ -827,8 +826,7 @@
dev = (struct aac_dev *)scsicmd->device->host->hostdata;
cid = ID_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun);
- lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
- dprintk((KERN_DEBUG "read_callback[cpu %d]: lba = %u, t = %ld.\n", smp_processor_id(), lba, jiffies));
+ dprintk((KERN_DEBUG "io_callback[cpu %d]: lba = %u, t = %ld.\n", smp_processor_id(), ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3], jiffies));
if (fibptr == NULL)
BUG();
@@ -847,7 +845,7 @@
scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
else {
#ifdef AAC_DETAILED_STATUS_INFO
- printk(KERN_WARNING "read_callback: io failed, status = %d\n",
+ printk(KERN_WARNING "io_callback: io failed, status = %d\n",
le32_to_cpu(readreply->status));
#endif
scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
@@ -867,53 +865,6 @@
aac_io_done(scsicmd);
}
-static void write_callback(void *context, struct fib * fibptr)
-{
- struct aac_dev *dev;
- struct aac_write_reply *writereply;
- struct scsi_cmnd *scsicmd;
- u32 lba;
- u32 cid;
-
- scsicmd = (struct scsi_cmnd *) context;
- dev = (struct aac_dev *)scsicmd->device->host->hostdata;
- cid = ID_LUN_TO_CONTAINER(scsicmd->device->id, scsicmd->device->lun);
-
- lba = ((scsicmd->cmnd[1] & 0x1F) << 16) | (scsicmd->cmnd[2] << 8) | scsicmd->cmnd[3];
- dprintk((KERN_DEBUG "write_callback[cpu %d]: lba = %u, t = %ld.\n", smp_processor_id(), lba, jiffies));
- if (fibptr == NULL)
- BUG();
-
- if(scsicmd->use_sg)
- pci_unmap_sg(dev->pdev,
- (struct scatterlist *)scsicmd->buffer,
- scsicmd->use_sg,
- scsicmd->sc_data_direction);
- else if(scsicmd->request_bufflen)
- pci_unmap_single(dev->pdev, scsicmd->SCp.dma_handle,
- scsicmd->request_bufflen,
- scsicmd->sc_data_direction);
-
- writereply = (struct aac_write_reply *) fib_data(fibptr);
- if (le32_to_cpu(writereply->status) == ST_OK)
- scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
- else {
- printk(KERN_WARNING "write_callback: write failed, status = %d\n", writereply->status);
- scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_CHECK_CONDITION;
- set_sense((u8 *) &dev->fsa_dev[cid].sense_data,
- HARDWARE_ERROR,
- SENCODE_INTERNAL_TARGET_FAILURE,
- ASENCODE_INTERNAL_TARGET_FAILURE, 0, 0,
- 0, 0);
- memcpy(scsicmd->sense_buffer, &dev->fsa_dev[cid].sense_data,
- sizeof(struct sense_data));
- }
-
- fib_complete(fibptr);
- fib_free(fibptr);
- aac_io_done(scsicmd);
-}
-
static int aac_read(struct scsi_cmnd * scsicmd, int cid)
{
u32 lba;
@@ -978,7 +929,7 @@
fibsize,
FsaNormal,
0, 1,
- (fib_callback) read_callback,
+ (fib_callback) io_callback,
(void *) scsicmd);
} else {
struct aac_read *readcmd;
@@ -1002,7 +953,7 @@
fibsize,
FsaNormal,
0, 1,
- (fib_callback) read_callback,
+ (fib_callback) io_callback,
(void *) scsicmd);
}
@@ -1085,7 +1036,7 @@
fibsize,
FsaNormal,
0, 1,
- (fib_callback) write_callback,
+ (fib_callback) io_callback,
(void *) scsicmd);
} else {
struct aac_write *writecmd;
@@ -1111,7 +1062,7 @@
fibsize,
FsaNormal,
0, 1,
- (fib_callback) write_callback,
+ (fib_callback) io_callback,
(void *) scsicmd);
}
--
Mark Haverkamp <markh@xxxxxxxx>
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