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path: root/drivers/scsi/iscsi_tcp.c
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Diffstat (limited to 'drivers/scsi/iscsi_tcp.c')
-rw-r--r--drivers/scsi/iscsi_tcp.c44
1 files changed, 14 insertions, 30 deletions
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index 2a2f0094570f..ed6c54cae7b1 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -523,22 +523,20 @@ iscsi_tcp_cleanup_task(struct iscsi_conn *conn, struct iscsi_task *task)
}
/**
- * iscsi_data_rsp - SCSI Data-In Response processing
+ * iscsi_data_in - SCSI Data-In Response processing
* @conn: iscsi connection
* @task: scsi command task
**/
static int
-iscsi_data_rsp(struct iscsi_conn *conn, struct iscsi_task *task)
+iscsi_data_in(struct iscsi_conn *conn, struct iscsi_task *task)
{
struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
struct iscsi_tcp_task *tcp_task = task->dd_data;
struct iscsi_data_rsp *rhdr = (struct iscsi_data_rsp *)tcp_conn->in.hdr;
- struct iscsi_session *session = conn->session;
- struct scsi_cmnd *sc = task->sc;
int datasn = be32_to_cpu(rhdr->datasn);
- unsigned total_in_length = scsi_in(sc)->length;
+ unsigned total_in_length = scsi_in(task->sc)->length;
- iscsi_update_cmdsn(session, (struct iscsi_nopin*)rhdr);
+ iscsi_update_cmdsn(conn->session, (struct iscsi_nopin*)rhdr);
if (tcp_conn->in.datalen == 0)
return 0;
@@ -558,23 +556,6 @@ iscsi_data_rsp(struct iscsi_conn *conn, struct iscsi_task *task)
return ISCSI_ERR_DATA_OFFSET;
}
- if (rhdr->flags & ISCSI_FLAG_DATA_STATUS) {
- sc->result = (DID_OK << 16) | rhdr->cmd_status;
- conn->exp_statsn = be32_to_cpu(rhdr->statsn) + 1;
- if (rhdr->flags & (ISCSI_FLAG_DATA_UNDERFLOW |
- ISCSI_FLAG_DATA_OVERFLOW)) {
- int res_count = be32_to_cpu(rhdr->residual_count);
-
- if (res_count > 0 &&
- (rhdr->flags & ISCSI_FLAG_CMD_OVERFLOW ||
- res_count <= total_in_length))
- scsi_in(sc)->resid = res_count;
- else
- sc->result = (DID_BAD_TARGET << 16) |
- rhdr->cmd_status;
- }
- }
-
conn->datain_pdus_cnt++;
return 0;
}
@@ -774,7 +755,7 @@ iscsi_tcp_hdr_dissect(struct iscsi_conn *conn, struct iscsi_hdr *hdr)
if (!task)
rc = ISCSI_ERR_BAD_ITT;
else
- rc = iscsi_data_rsp(conn, task);
+ rc = iscsi_data_in(conn, task);
if (rc) {
spin_unlock(&conn->session->lock);
break;
@@ -998,7 +979,7 @@ iscsi_tcp_recv(read_descriptor_t *rd_desc, struct sk_buff *skb,
error:
debug_tcp("Error receiving PDU, errno=%d\n", rc);
- iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
+ iscsi_conn_failure(conn, rc);
return 0;
}
@@ -1117,8 +1098,10 @@ iscsi_xmit(struct iscsi_conn *conn)
while (1) {
rc = iscsi_tcp_xmit_segment(tcp_conn, segment);
- if (rc < 0)
+ if (rc < 0) {
+ rc = ISCSI_ERR_XMIT_FAILED;
goto error;
+ }
if (rc == 0)
break;
@@ -1127,7 +1110,7 @@ iscsi_xmit(struct iscsi_conn *conn)
if (segment->total_copied >= segment->total_size) {
if (segment->done != NULL) {
rc = segment->done(tcp_conn, segment);
- if (rc < 0)
+ if (rc != 0)
goto error;
}
}
@@ -1142,8 +1125,8 @@ error:
/* Transmit error. We could initiate error recovery
* here. */
debug_tcp("Error sending PDU, errno=%d\n", rc);
- iscsi_conn_failure(conn, ISCSI_ERR_CONN_FAILED);
- return rc;
+ iscsi_conn_failure(conn, rc);
+ return -EIO;
}
/**
@@ -1904,6 +1887,7 @@ static void iscsi_tcp_session_destroy(struct iscsi_cls_session *cls_session)
struct Scsi_Host *shost = iscsi_session_to_shost(cls_session);
iscsi_r2tpool_free(cls_session->dd_data);
+ iscsi_session_teardown(cls_session);
iscsi_host_remove(shost);
iscsi_host_free(shost);
@@ -1927,7 +1911,7 @@ static struct scsi_host_template iscsi_sht = {
.cmd_per_lun = ISCSI_DEF_CMD_PER_LUN,
.eh_abort_handler = iscsi_eh_abort,
.eh_device_reset_handler= iscsi_eh_device_reset,
- .eh_host_reset_handler = iscsi_eh_host_reset,
+ .eh_target_reset_handler= iscsi_eh_target_reset,
.use_clustering = DISABLE_CLUSTERING,
.slave_configure = iscsi_tcp_slave_configure,
.proc_name = "iscsi_tcp",