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authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>2007-06-14 22:13:17 +0900
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2007-06-17 16:01:55 -0500
commit1c13899154f6f93e8c9ff3e981a90d5f21df2d6b (patch)
tree0287449d5e4da4fb8824e49f5cd25c4dbfcc3bac /drivers/scsi/libiscsi.c
parentd36b113eea2918ce1badf277af9fc64311609ca2 (diff)
[SCSI] iscsi_tcp: convert to use the data buffer accessors
- remove the unnecessary map_single path. - convert to use the new accessors for the sg lists and the parameters. TODO: use scsi_for_each_sg(). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/libiscsi.c')
-rw-r--r--drivers/scsi/libiscsi.c20
1 files changed, 10 insertions, 10 deletions
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 865dd5739f0e..4d85ce100192 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -140,7 +140,7 @@ static void iscsi_prep_scsi_cmd_pdu(struct iscsi_cmd_task *ctask)
hdr->flags = ISCSI_ATTR_SIMPLE;
int_to_scsilun(sc->device->lun, (struct scsi_lun *)hdr->lun);
hdr->itt = build_itt(ctask->itt, conn->id, session->age);
- hdr->data_length = cpu_to_be32(sc->request_bufflen);
+ hdr->data_length = cpu_to_be32(scsi_bufflen(sc));
hdr->cmdsn = cpu_to_be32(session->cmdsn);
session->cmdsn++;
hdr->exp_statsn = cpu_to_be32(conn->exp_statsn);
@@ -172,11 +172,11 @@ static void iscsi_prep_scsi_cmd_pdu(struct iscsi_cmd_task *ctask)
ctask->unsol_datasn = 0;
if (session->imm_data_en) {
- if (sc->request_bufflen >= session->first_burst)
+ if (scsi_bufflen(sc) >= session->first_burst)
ctask->imm_count = min(session->first_burst,
conn->max_xmit_dlength);
else
- ctask->imm_count = min(sc->request_bufflen,
+ ctask->imm_count = min(scsi_bufflen(sc),
conn->max_xmit_dlength);
hton24(ctask->hdr->dlength, ctask->imm_count);
} else
@@ -184,7 +184,7 @@ static void iscsi_prep_scsi_cmd_pdu(struct iscsi_cmd_task *ctask)
if (!session->initial_r2t_en) {
ctask->unsol_count = min((session->first_burst),
- (sc->request_bufflen)) - ctask->imm_count;
+ (scsi_bufflen(sc))) - ctask->imm_count;
ctask->unsol_offset = ctask->imm_count;
}
@@ -204,7 +204,7 @@ static void iscsi_prep_scsi_cmd_pdu(struct iscsi_cmd_task *ctask)
debug_scsi("iscsi prep [%s cid %d sc %p cdb 0x%x itt 0x%x len %d "
"cmdsn %d win %d]\n",
sc->sc_data_direction == DMA_TO_DEVICE ? "write" : "read",
- conn->id, sc, sc->cmnd[0], ctask->itt, sc->request_bufflen,
+ conn->id, sc, sc->cmnd[0], ctask->itt, scsi_bufflen(sc),
session->cmdsn, session->max_cmdsn - session->exp_cmdsn + 1);
}
@@ -297,14 +297,14 @@ invalid_datalen:
if (rhdr->flags & ISCSI_FLAG_CMD_UNDERFLOW) {
int res_count = be32_to_cpu(rhdr->residual_count);
- if (res_count > 0 && res_count <= sc->request_bufflen)
- sc->resid = res_count;
+ if (res_count > 0 && res_count <= scsi_bufflen(sc))
+ scsi_set_resid(sc, res_count);
else
sc->result = (DID_BAD_TARGET << 16) | rhdr->cmd_status;
} else if (rhdr->flags & ISCSI_FLAG_CMD_BIDI_UNDERFLOW)
sc->result = (DID_BAD_TARGET << 16) | rhdr->cmd_status;
else if (rhdr->flags & ISCSI_FLAG_CMD_OVERFLOW)
- sc->resid = be32_to_cpu(rhdr->residual_count);
+ scsi_set_resid(sc, be32_to_cpu(rhdr->residual_count));
out:
debug_scsi("done [sc %lx res %d itt 0x%x]\n",
@@ -876,7 +876,7 @@ fault:
printk(KERN_ERR "iscsi: cmd 0x%x is not queued (%d)\n",
sc->cmnd[0], reason);
sc->result = (DID_NO_CONNECT << 16);
- sc->resid = sc->request_bufflen;
+ scsi_set_resid(sc, scsi_bufflen(sc));
sc->scsi_done(sc);
return 0;
}
@@ -1145,7 +1145,7 @@ static void fail_command(struct iscsi_conn *conn, struct iscsi_cmd_task *ctask,
iscsi_ctask_mtask_cleanup(ctask);
sc->result = err;
- sc->resid = sc->request_bufflen;
+ scsi_set_resid(sc, scsi_bufflen(sc));
if (conn->ctask == ctask)
conn->ctask = NULL;
/* release ref from queuecommand */