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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.c68
1 files changed, 66 insertions, 2 deletions
diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index 6ecb4baa37e..6e510f3cfbf 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -3536,7 +3536,7 @@ iscsi_session_get_param(struct iscsi_cls_session *cls_session,
*value = session->ofmarker_en;
break;
default:
- return ISCSI_ERR_PARAM_NOT_FOUND;
+ return -EINVAL;
}
return 0;
@@ -3547,6 +3547,7 @@ iscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
enum iscsi_param param, uint32_t *value)
{
struct iscsi_conn *conn = cls_conn->dd_data;
+ struct inet_sock *inet;
switch(param) {
case ISCSI_PARAM_MAX_RECV_DLENGTH:
@@ -3561,13 +3562,61 @@ iscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
case ISCSI_PARAM_DATADGST_EN:
*value = conn->datadgst_en;
break;
+ case ISCSI_PARAM_CONN_PORT:
+ mutex_lock(&conn->xmitmutex);
+ if (!conn->sock) {
+ mutex_unlock(&conn->xmitmutex);
+ return -EINVAL;
+ }
+
+ inet = inet_sk(conn->sock->sk);
+ *value = be16_to_cpu(inet->dport);
+ mutex_unlock(&conn->xmitmutex);
default:
- return ISCSI_ERR_PARAM_NOT_FOUND;
+ return -EINVAL;
}
return 0;
}
+static int
+iscsi_conn_get_str_param(struct iscsi_cls_conn *cls_conn,
+ enum iscsi_param param, char *buf)
+{
+ struct iscsi_conn *conn = cls_conn->dd_data;
+ struct sock *sk;
+ struct inet_sock *inet;
+ struct ipv6_pinfo *np;
+ int len = 0;
+
+ switch (param) {
+ case ISCSI_PARAM_CONN_ADDRESS:
+ mutex_lock(&conn->xmitmutex);
+ if (!conn->sock) {
+ mutex_unlock(&conn->xmitmutex);
+ return -EINVAL;
+ }
+
+ sk = conn->sock->sk;
+ if (sk->sk_family == PF_INET) {
+ inet = inet_sk(sk);
+ len = sprintf(buf, "%u.%u.%u.%u\n",
+ NIPQUAD(inet->daddr));
+ } else {
+ np = inet6_sk(sk);
+ len = sprintf(buf,
+ "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n",
+ NIP6(np->daddr));
+ }
+ mutex_unlock(&conn->xmitmutex);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return len;
+}
+
static void
iscsi_conn_get_stats(struct iscsi_cls_conn *cls_conn, struct iscsi_stats *stats)
{
@@ -3610,6 +3659,20 @@ static struct iscsi_transport iscsi_tcp_transport = {
.name = "tcp",
.caps = CAP_RECOVERY_L0 | CAP_MULTI_R2T | CAP_HDRDGST
| CAP_DATADGST,
+ .param_mask = ISCSI_MAX_RECV_DLENGTH |
+ ISCSI_MAX_XMIT_DLENGTH |
+ ISCSI_HDRDGST_EN |
+ ISCSI_DATADGST_EN |
+ ISCSI_INITIAL_R2T_EN |
+ ISCSI_MAX_R2T |
+ ISCSI_IMM_DATA_EN |
+ ISCSI_FIRST_BURST |
+ ISCSI_MAX_BURST |
+ ISCSI_PDU_INORDER_EN |
+ ISCSI_DATASEQ_INORDER_EN |
+ ISCSI_ERL |
+ ISCSI_CONN_PORT |
+ ISCSI_CONN_ADDRESS,
.host_template = &iscsi_sht,
.hostdata_size = sizeof(struct iscsi_session),
.conndata_size = sizeof(struct iscsi_conn),
@@ -3622,6 +3685,7 @@ static struct iscsi_transport iscsi_tcp_transport = {
.destroy_conn = iscsi_conn_destroy,
.set_param = iscsi_conn_set_param,
.get_conn_param = iscsi_conn_get_param,
+ .get_conn_str_param = iscsi_conn_get_str_param,
.get_session_param = iscsi_session_get_param,
.start_conn = iscsi_conn_start,
.stop_conn = iscsi_conn_stop,