From 2ff79d52d56eebcffd83e9327b89d7daedf1e897 Mon Sep 17 00:00:00 2001
From: Mike Christie <michaelc@cs.wisc.edu>
Date: Tue, 2 Dec 2008 00:32:14 -0600
Subject: [PATCH] [SCSI] libiscsi: pass opcode into alloc_pdu callout
We do not need to allocate a itt for data_out, so this
passes the opcode to the alloc_pdu callout.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
drivers/infiniband/ulp/iser/iscsi_iser.c | 2 +-
drivers/scsi/iscsi_tcp.c | 2 +-
drivers/scsi/libiscsi.c | 14 +++++++-------
drivers/scsi/libiscsi_tcp.c | 2 +-
include/scsi/scsi_transport_iscsi.h | 2 +-
5 files changed, 11 insertions(+), 11 deletions(-)
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c
index 78bf5e4538cb..12876392516e 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.c
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.c
@@ -119,7 +119,7 @@ iscsi_iser_recv(struct iscsi_conn *conn,
iscsi_conn_failure(conn, rc);
}
-static int iscsi_iser_pdu_alloc(struct iscsi_task *task)
+static int iscsi_iser_pdu_alloc(struct iscsi_task *task, uint8_t opcode)
{
struct iscsi_iser_task *iser_task = task->dd_data;
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index 07d9eb14721b..de5c9b3e51fb 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -457,7 +457,7 @@ static int iscsi_sw_tcp_pdu_init(struct iscsi_task *task,
return 0;
}
-static int iscsi_sw_tcp_pdu_alloc(struct iscsi_task *task)
+static int iscsi_sw_tcp_pdu_alloc(struct iscsi_task *task, uint8_t opcode)
{
struct iscsi_tcp_task *tcp_task = task->dd_data;
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 6c4034b1561c..ddf53978f0be 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -225,13 +225,18 @@ static int iscsi_prep_scsi_cmd_pdu(struct iscsi_task *task)
itt_t itt;
int rc;
- rc = conn->session->tt->alloc_pdu(task);
+ rc = conn->session->tt->alloc_pdu(task, ISCSI_OP_SCSI_CMD);
if (rc)
return rc;
hdr = (struct iscsi_cmd *) task->hdr;
itt = hdr->itt;
memset(hdr, 0, sizeof(*hdr));
+ if (session->tt->parse_pdu_itt)
+ hdr->itt = task->hdr_itt = itt;
+ else
+ hdr->itt = task->hdr_itt = build_itt(task->itt,
+ task->conn->session->age);
task->hdr_len = 0;
rc = iscsi_add_hdr(task, sizeof(*hdr));
if (rc)
@@ -240,11 +245,6 @@ static int iscsi_prep_scsi_cmd_pdu(struct iscsi_task *task)
hdr->flags = ISCSI_ATTR_SIMPLE;
int_to_scsilun(sc->device->lun, (struct scsi_lun *)hdr->lun);
memcpy(task->lun, hdr->lun, sizeof(task->lun));
- if (session->tt->parse_pdu_itt)
- hdr->itt = task->hdr_itt = itt;
- else
- hdr->itt = task->hdr_itt = build_itt(task->itt,
- task->conn->session->age);
hdr->cmdsn = task->cmdsn = cpu_to_be32(session->cmdsn);
session->cmdsn++;
hdr->exp_statsn = cpu_to_be32(conn->exp_statsn);
@@ -532,7 +532,7 @@ __iscsi_conn_send_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr,
} else
task->data_count = 0;
- if (conn->session->tt->alloc_pdu(task)) {
+ if (conn->session->tt->alloc_pdu(task, hdr->opcode)) {
iscsi_conn_printk(KERN_ERR, conn, "Could not allocate "
"pdu for mgmt task.\n");
goto requeue_task;
diff --git a/drivers/scsi/libiscsi_tcp.c b/drivers/scsi/libiscsi_tcp.c
index e86508936314..9df6b3436e4a 100644
--- a/drivers/scsi/libiscsi_tcp.c
+++ b/drivers/scsi/libiscsi_tcp.c
@@ -1021,7 +1021,7 @@ int iscsi_tcp_task_xmit(struct iscsi_task *task)
return 0;
}
- rc = conn->session->tt->alloc_pdu(task);
+ rc = conn->session->tt->alloc_pdu(task, ISCSI_OP_SCSI_DATA_OUT);
if (rc)
return rc;
iscsi_prep_data_out_pdu(task, r2t, (struct iscsi_data *) task->hdr);
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index e13cb20f1eae..b50aabe2861e 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -118,7 +118,7 @@ struct iscsi_transport {
int (*xmit_task) (struct iscsi_task *task);
void (*cleanup_task) (struct iscsi_task *task);
- int (*alloc_pdu) (struct iscsi_task *task);
+ int (*alloc_pdu) (struct iscsi_task *task, uint8_t opcode);
int (*xmit_pdu) (struct iscsi_task *task);
int (*init_pdu) (struct iscsi_task *task, unsigned int offset,
unsigned int count);
--
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