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Diffstat (limited to 'drivers/scsi/iscsi_tcp.c')
-rw-r--r--drivers/scsi/iscsi_tcp.c118
1 files changed, 70 insertions, 48 deletions
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index 0acc4b235d9..e31d350e6b6 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -2435,17 +2435,20 @@ iscsi_pool_free(struct iscsi_queue *q, void **items)
kfree(items);
}
-static iscsi_connh_t
-iscsi_conn_create(iscsi_sessionh_t sessionh, uint32_t conn_idx)
+static struct iscsi_cls_conn *
+iscsi_conn_create(struct Scsi_Host *shost, uint32_t conn_idx)
{
- struct iscsi_session *session = iscsi_ptr(sessionh);
- struct iscsi_conn *conn = NULL;
+ struct iscsi_session *session = iscsi_hostdata(shost->hostdata);
+ struct iscsi_conn *conn;
+ struct iscsi_cls_conn *cls_conn;
- conn = kmalloc(sizeof(struct iscsi_conn), GFP_KERNEL);
- if (conn == NULL)
- goto conn_alloc_fail;
- memset(conn, 0, sizeof(struct iscsi_conn));
+ cls_conn = iscsi_create_conn(hostdata_session(shost->hostdata),
+ conn_idx);
+ if (!cls_conn)
+ return NULL;
+ conn = cls_conn->dd_data;
+ memset(conn, 0, sizeof(struct iscsi_conn));
conn->c_stage = ISCSI_CONN_INITIAL_STAGE;
conn->in_progress = IN_PROGRESS_WAIT_HEADER;
conn->id = conn_idx;
@@ -2507,7 +2510,7 @@ iscsi_conn_create(iscsi_sessionh_t sessionh, uint32_t conn_idx)
mutex_init(&conn->xmitmutex);
init_waitqueue_head(&conn->ehwait);
- return iscsi_handle(conn);
+ return cls_conn;
max_recv_dlenght_alloc_fail:
spin_lock_bh(&session->lock);
@@ -2523,15 +2526,14 @@ immqueue_alloc_fail:
writequeue_alloc_fail:
kfifo_free(conn->xmitqueue);
xmitqueue_alloc_fail:
- kfree(conn);
-conn_alloc_fail:
- return iscsi_handle(NULL);
+ iscsi_destroy_conn(cls_conn);
+ return NULL;
}
static void
-iscsi_conn_destroy(iscsi_connh_t connh)
+iscsi_conn_destroy(struct iscsi_cls_conn *cls_conn)
{
- struct iscsi_conn *conn = iscsi_ptr(connh);
+ struct iscsi_conn *conn = cls_conn->dd_data;
struct iscsi_session *session = conn->session;
unsigned long flags;
@@ -2626,7 +2628,8 @@ iscsi_conn_destroy(iscsi_connh_t connh)
kfifo_free(conn->writequeue);
kfifo_free(conn->immqueue);
kfifo_free(conn->mgmtqueue);
- kfree(conn);
+
+ iscsi_destroy_conn(cls_conn);
}
static int
@@ -3257,17 +3260,23 @@ static struct scsi_host_template iscsi_sht = {
.this_id = -1,
};
-static iscsi_sessionh_t
-iscsi_session_create(uint32_t initial_cmdsn, struct Scsi_Host *host)
+static struct iscsi_transport iscsi_tcp_transport;
+
+static struct Scsi_Host *
+iscsi_session_create(struct scsi_transport_template *scsit,
+ uint32_t initial_cmdsn)
{
- int cmd_i;
+ struct Scsi_Host *shost;
struct iscsi_session *session;
+ int cmd_i;
- session = iscsi_hostdata(host->hostdata);
- memset(session, 0, sizeof(struct iscsi_session));
+ shost = iscsi_transport_create_session(scsit, &iscsi_tcp_transport);
+ if (!shost)
+ return NULL;
- session->host = host;
- session->id = host->host_no;
+ session = iscsi_hostdata(shost->hostdata);
+ memset(session, 0, sizeof(struct iscsi_session));
+ session->host = shost;
session->state = ISCSI_STATE_LOGGED_IN;
session->mgmtpool_max = ISCSI_MGMT_CMDS_MAX;
session->cmds_max = ISCSI_XMIT_CMDS_MAX;
@@ -3311,7 +3320,7 @@ iscsi_session_create(uint32_t initial_cmdsn, struct Scsi_Host *host)
if (iscsi_r2tpool_alloc(session))
goto r2tpool_alloc_fail;
- return iscsi_handle(session);
+ return shost;
r2tpool_alloc_fail:
for (cmd_i = 0; cmd_i < session->mgmtpool_max; cmd_i++)
@@ -3321,15 +3330,15 @@ immdata_alloc_fail:
mgmtpool_alloc_fail:
iscsi_pool_free(&session->cmdpool, (void**)session->cmds);
cmdpool_alloc_fail:
- return iscsi_handle(NULL);
+ return NULL;
}
static void
-iscsi_session_destroy(iscsi_sessionh_t sessionh)
+iscsi_session_destroy(struct Scsi_Host *shost)
{
+ struct iscsi_session *session = iscsi_hostdata(shost->hostdata);
int cmd_i;
struct iscsi_data_task *dtask, *n;
- struct iscsi_session *session = iscsi_ptr(sessionh);
for (cmd_i = 0; cmd_i < session->cmds_max; cmd_i++) {
struct iscsi_cmd_task *ctask = session->cmds[cmd_i];
@@ -3345,6 +3354,8 @@ iscsi_session_destroy(iscsi_sessionh_t sessionh)
iscsi_r2tpool_free(session);
iscsi_pool_free(&session->mgmtpool, (void**)session->mgmt_cmds);
iscsi_pool_free(&session->cmdpool, (void**)session->cmds);
+
+ iscsi_transport_destroy_session(shost);
}
static int
@@ -3493,25 +3504,12 @@ iscsi_conn_set_param(iscsi_connh_t connh, enum iscsi_param param,
}
static int
-iscsi_conn_get_param(iscsi_connh_t connh, enum iscsi_param param,
- uint32_t *value)
+iscsi_session_get_param(struct Scsi_Host *shost,
+ enum iscsi_param param, uint32_t *value)
{
- struct iscsi_conn *conn = iscsi_ptr(connh);
- struct iscsi_session *session = conn->session;
+ struct iscsi_session *session = iscsi_hostdata(shost->hostdata);
switch(param) {
- case ISCSI_PARAM_MAX_RECV_DLENGTH:
- *value = conn->max_recv_dlength;
- break;
- case ISCSI_PARAM_MAX_XMIT_DLENGTH:
- *value = conn->max_xmit_dlength;
- break;
- case ISCSI_PARAM_HDRDGST_EN:
- *value = conn->hdrdgst_en;
- break;
- case ISCSI_PARAM_DATADGST_EN:
- *value = conn->datadgst_en;
- break;
case ISCSI_PARAM_INITIAL_R2T_EN:
*value = session->initial_r2t_en;
break;
@@ -3549,6 +3547,31 @@ iscsi_conn_get_param(iscsi_connh_t connh, enum iscsi_param param,
return 0;
}
+static int
+iscsi_conn_get_param(void *data, enum iscsi_param param, uint32_t *value)
+{
+ struct iscsi_conn *conn = data;
+
+ switch(param) {
+ case ISCSI_PARAM_MAX_RECV_DLENGTH:
+ *value = conn->max_recv_dlength;
+ break;
+ case ISCSI_PARAM_MAX_XMIT_DLENGTH:
+ *value = conn->max_xmit_dlength;
+ break;
+ case ISCSI_PARAM_HDRDGST_EN:
+ *value = conn->hdrdgst_en;
+ break;
+ case ISCSI_PARAM_DATADGST_EN:
+ *value = conn->datadgst_en;
+ break;
+ default:
+ return ISCSI_ERR_PARAM_NOT_FOUND;
+ }
+
+ return 0;
+}
+
static void
iscsi_conn_get_stats(iscsi_connh_t connh, struct iscsi_stats *stats)
{
@@ -3593,6 +3616,7 @@ static struct iscsi_transport iscsi_tcp_transport = {
| CAP_DATADGST,
.host_template = &iscsi_sht,
.hostdata_size = sizeof(struct iscsi_session),
+ .conndata_size = sizeof(struct iscsi_conn),
.max_conn = 1,
.max_cmd_len = ISCSI_TCP_MAX_CMD_LEN,
.create_session = iscsi_session_create,
@@ -3601,7 +3625,8 @@ static struct iscsi_transport iscsi_tcp_transport = {
.bind_conn = iscsi_conn_bind,
.destroy_conn = iscsi_conn_destroy,
.set_param = iscsi_conn_set_param,
- .get_param = iscsi_conn_get_param,
+ .get_conn_param = iscsi_conn_get_param,
+ .get_session_param = iscsi_session_get_param,
.start_conn = iscsi_conn_start,
.stop_conn = iscsi_conn_stop,
.send_pdu = iscsi_conn_send_pdu,
@@ -3611,8 +3636,6 @@ static struct iscsi_transport iscsi_tcp_transport = {
static int __init
iscsi_tcp_init(void)
{
- int error;
-
if (iscsi_max_lun < 1) {
printk(KERN_ERR "Invalid max_lun value of %u\n", iscsi_max_lun);
return -EINVAL;
@@ -3625,11 +3648,10 @@ iscsi_tcp_init(void)
if (!taskcache)
return -ENOMEM;
- error = iscsi_register_transport(&iscsi_tcp_transport);
- if (error)
+ if (!iscsi_register_transport(&iscsi_tcp_transport))
kmem_cache_destroy(taskcache);
- return error;
+ return 0;
}
static void __exit
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-27 22:09:02 +0000