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[SCSI] aacraid: use sg buffer copy helper functions

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This replaces aac_internal_transfer with scsi_sg_copy_to/from_buffer.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Mark Salyzyn <Mark_Salyzyn@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
FUJITA Tomonori 2008-03-09 13:44:34 +09:00 committed by James Bottomley
parent 6690bae7e0
commit d4345028d4
1 changed files with 17 additions and 32 deletions
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49
drivers/scsi/aacraid/aachba.c
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@ -379,24 +379,6 @@ int aac_get_containers(struct aac_dev *dev)
return status;
}
static void aac_internal_transfer(struct scsi_cmnd *scsicmd, void *data, unsigned int offset, unsigned int len)
{
void *buf;
int transfer_len;
struct scatterlist *sg = scsi_sglist(scsicmd);
buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
transfer_len = min(sg->length, len + offset);
transfer_len -= offset;
if (buf && transfer_len > 0)
memcpy(buf + offset, data, transfer_len);
flush_kernel_dcache_page(kmap_atomic_to_page(buf - sg->offset));
kunmap_atomic(buf - sg->offset, KM_IRQ0);
}
static void get_container_name_callback(void *context, struct fib * fibptr)
{
struct aac_get_name_resp * get_name_reply;
@ -419,14 +401,17 @@ static void get_container_name_callback(void *context, struct fib * fibptr)
while (*sp == ' ')
++sp;
if (*sp) {
struct inquiry_data inq;
char d[sizeof(((struct inquiry_data *)NULL)->inqd_pid)];
int count = sizeof(d);
char *dp = d;
do {
*dp++ = (*sp) ? *sp++ : ' ';
} while (--count > 0);
aac_internal_transfer(scsicmd, d,
offsetof(struct inquiry_data, inqd_pid), sizeof(d));
scsi_sg_copy_to_buffer(scsicmd, &inq, sizeof(inq));
memcpy(inq.inqd_pid, d, sizeof(d));
scsi_sg_copy_from_buffer(scsicmd, &inq, sizeof(inq));
}
}
@ -811,7 +796,7 @@ static void get_container_serial_callback(void *context, struct fib * fibptr)
sp[2] = 0;
sp[3] = snprintf(sp+4, sizeof(sp)-4, "%08X",
le32_to_cpu(get_serial_reply->uid));
aac_internal_transfer(scsicmd, sp, 0, sizeof(sp));
scsi_sg_copy_from_buffer(scsicmd, sp, sizeof(sp));
}
scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
@ -1986,8 +1971,8 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
arr[4] = 0x0;
arr[5] = 0x80;
arr[1] = scsicmd->cmnd[2];
aac_internal_transfer(scsicmd, &inq_data, 0,
sizeof(inq_data));
scsi_sg_copy_from_buffer(scsicmd, &inq_data,
sizeof(inq_data));
scsicmd->result = DID_OK << 16 |
COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
} else if (scsicmd->cmnd[2] == 0x80) {
@ -1995,8 +1980,8 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
arr[3] = setinqserial(dev, &arr[4],
scmd_id(scsicmd));
arr[1] = scsicmd->cmnd[2];
aac_internal_transfer(scsicmd, &inq_data, 0,
sizeof(inq_data));
scsi_sg_copy_from_buffer(scsicmd, &inq_data,
sizeof(inq_data));
return aac_get_container_serial(scsicmd);
} else {
/* vpd page not implemented */
@ -2027,7 +2012,8 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
if (cid == host->this_id) {
setinqstr(dev, (void *) (inq_data.inqd_vid), ARRAY_SIZE(container_types));
inq_data.inqd_pdt = INQD_PDT_PROC; /* Processor device */
aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
scsi_sg_copy_from_buffer(scsicmd, &inq_data,
sizeof(inq_data));
scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
scsicmd->scsi_done(scsicmd);
return 0;
@ -2036,7 +2022,7 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
return -1;
setinqstr(dev, (void *) (inq_data.inqd_vid), fsa_dev_ptr[cid].type);
inq_data.inqd_pdt = INQD_PDT_DA; /* Direct/random access device */
aac_internal_transfer(scsicmd, &inq_data, 0, sizeof(inq_data));
scsi_sg_copy_from_buffer(scsicmd, &inq_data, sizeof(inq_data));
return aac_get_container_name(scsicmd);
}
case SERVICE_ACTION_IN:
@ -2070,8 +2056,7 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
+ (scsicmd->cmnd[12] << 8) + scsicmd->cmnd[13]);
alloc_len = min_t(size_t, alloc_len, sizeof(cp));
aac_internal_transfer(scsicmd, cp, 0, alloc_len);
scsi_sg_copy_from_buffer(scsicmd, cp, alloc_len);
if (alloc_len < scsi_bufflen(scsicmd))
scsi_set_resid(scsicmd,
scsi_bufflen(scsicmd) - alloc_len);
@ -2104,7 +2089,7 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
cp[5] = 0;
cp[6] = 2;
cp[7] = 0;
aac_internal_transfer(scsicmd, cp, 0, sizeof(cp));
scsi_sg_copy_from_buffer(scsicmd, cp, sizeof(cp));
/* Do not cache partition table for arrays */
scsicmd->device->removable = 1;
@ -2139,7 +2124,7 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
if (mode_buf_length > scsicmd->cmnd[4])
mode_buf_length = scsicmd->cmnd[4];
}
aac_internal_transfer(scsicmd, mode_buf, 0, mode_buf_length);
scsi_sg_copy_from_buffer(scsicmd, mode_buf, mode_buf_length);
scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
scsicmd->scsi_done(scsicmd);
@ -2174,7 +2159,7 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd)
if (mode_buf_length > scsicmd->cmnd[8])
mode_buf_length = scsicmd->cmnd[8];
}
aac_internal_transfer(scsicmd, mode_buf, 0, mode_buf_length);
scsi_sg_copy_from_buffer(scsicmd, mode_buf, mode_buf_length);
scsicmd->result = DID_OK << 16 | COMMAND_COMPLETE << 8 | SAM_STAT_GOOD;
scsicmd->scsi_done(scsicmd);