1 files changed, 24 insertions, 128 deletions

diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index b4743a9ecc80..848fb2aa4ca3 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -2130,19 +2130,21 @@ iscsi_r2tpool_free(struct iscsi_session *session)
 
 static int
 iscsi_conn_set_param(struct iscsi_cls_conn *cls_conn, enum iscsi_param param,
-                     uint32_t value)
+                     char *buf, int buflen)
 {
         struct iscsi_conn *conn = cls_conn->dd_data;
         struct iscsi_session *session = conn->session;
         struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
+        int value;
 
         switch(param) {
         case ISCSI_PARAM_MAX_RECV_DLENGTH: {
                 char *saveptr = tcp_conn->data;
                 gfp_t flags = GFP_KERNEL;
 
+                sscanf(buf, "%d", &value);
                 if (tcp_conn->data_size >= value) {
-                        conn->max_recv_dlength = value;
+                        iscsi_set_param(cls_conn, param, buf, buflen);
                         break;
                 }
 
@@ -2165,15 +2167,12 @@ iscsi_conn_set_param(struct iscsi_cls_conn *cls_conn, enum iscsi_param param,
                 else
                         free_pages((unsigned long)saveptr,
                                    get_order(tcp_conn->data_size));
-                conn->max_recv_dlength = value;
+                iscsi_set_param(cls_conn, param, buf, buflen);
                 tcp_conn->data_size = value;
-                }
-                break;
-        case ISCSI_PARAM_MAX_XMIT_DLENGTH:
-                conn->max_xmit_dlength =  value;
                 break;
+                }
         case ISCSI_PARAM_HDRDGST_EN:
-                conn->hdrdgst_en = value;
+                iscsi_set_param(cls_conn, param, buf, buflen);
                 tcp_conn->hdr_size = sizeof(struct iscsi_hdr);
                 if (conn->hdrdgst_en) {
                         tcp_conn->hdr_size += sizeof(__u32);
@@ -2197,7 +2196,7 @@ iscsi_conn_set_param(struct iscsi_cls_conn *cls_conn, enum iscsi_param param,
                 }
                 break;
         case ISCSI_PARAM_DATADGST_EN:
-                conn->datadgst_en = value;
+                iscsi_set_param(cls_conn, param, buf, buflen);
                 if (conn->datadgst_en) {
                         if (!tcp_conn->data_tx_tfm)
                                 tcp_conn->data_tx_tfm =
@@ -2220,121 +2219,36 @@ iscsi_conn_set_param(struct iscsi_cls_conn *cls_conn, enum iscsi_param param,
                 tcp_conn->sendpage = conn->datadgst_en ?
                         sock_no_sendpage : tcp_conn->sock->ops->sendpage;
                 break;
-        case ISCSI_PARAM_INITIAL_R2T_EN:
-                session->initial_r2t_en = value;
-                break;
         case ISCSI_PARAM_MAX_R2T:
+                sscanf(buf, "%d", &value);
                 if (session->max_r2t == roundup_pow_of_two(value))
                         break;
                 iscsi_r2tpool_free(session);
-                session->max_r2t = value;
+                iscsi_set_param(cls_conn, param, buf, buflen);
                 if (session->max_r2t & (session->max_r2t - 1))
                         session->max_r2t = roundup_pow_of_two(session->max_r2t);
                 if (iscsi_r2tpool_alloc(session))
                         return -ENOMEM;
                 break;
-        case ISCSI_PARAM_IMM_DATA_EN:
-                session->imm_data_en = value;
-                break;
-        case ISCSI_PARAM_FIRST_BURST:
-                session->first_burst = value;
-                break;
-        case ISCSI_PARAM_MAX_BURST:
-                session->max_burst = value;
-                break;
-        case ISCSI_PARAM_PDU_INORDER_EN:
-                session->pdu_inorder_en = value;
-                break;
-        case ISCSI_PARAM_DATASEQ_INORDER_EN:
-                session->dataseq_inorder_en = value;
-                break;
-        case ISCSI_PARAM_ERL:
-                session->erl = value;
-                break;
-        case ISCSI_PARAM_IFMARKER_EN:
-                BUG_ON(value);
-                session->ifmarker_en = value;
-                break;
-        case ISCSI_PARAM_OFMARKER_EN:
-                BUG_ON(value);
-                session->ofmarker_en = value;
-                break;
-        case ISCSI_PARAM_EXP_STATSN:
-                conn->exp_statsn = value;
-                break;
-        default:
-                break;
-        }
-
-        return 0;
-}
-
-static int
-iscsi_session_get_param(struct iscsi_cls_session *cls_session,
-                        enum iscsi_param param, uint32_t *value)
-{
-        struct Scsi_Host *shost = iscsi_session_to_shost(cls_session);
-        struct iscsi_session *session = iscsi_hostdata(shost->hostdata);
-
-        switch(param) {
-        case ISCSI_PARAM_INITIAL_R2T_EN:
-                *value = session->initial_r2t_en;
-                break;
-        case ISCSI_PARAM_MAX_R2T:
-                *value = session->max_r2t;
-                break;
-        case ISCSI_PARAM_IMM_DATA_EN:
-                *value = session->imm_data_en;
-                break;
-        case ISCSI_PARAM_FIRST_BURST:
-                *value = session->first_burst;
-                break;
-        case ISCSI_PARAM_MAX_BURST:
-                *value = session->max_burst;
-                break;
-        case ISCSI_PARAM_PDU_INORDER_EN:
-                *value = session->pdu_inorder_en;
-                break;
-        case ISCSI_PARAM_DATASEQ_INORDER_EN:
-                *value = session->dataseq_inorder_en;
-                break;
-        case ISCSI_PARAM_ERL:
-                *value = session->erl;
-                break;
-        case ISCSI_PARAM_IFMARKER_EN:
-                *value = session->ifmarker_en;
-                break;
-        case ISCSI_PARAM_OFMARKER_EN:
-                *value = session->ofmarker_en;
-                break;
         default:
-                return -EINVAL;
+                return iscsi_set_param(cls_conn, param, buf, buflen);
         }
 
         return 0;
 }
 
 static int
-iscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
-                     enum iscsi_param param, uint32_t *value)
+iscsi_tcp_conn_get_param(struct iscsi_cls_conn *cls_conn,
+                         enum iscsi_param param, char *buf)
 {
         struct iscsi_conn *conn = cls_conn->dd_data;
         struct iscsi_tcp_conn *tcp_conn = conn->dd_data;
         struct inet_sock *inet;
+        struct ipv6_pinfo *np;
+        struct sock *sk;
+        int len;
 
         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_CONN_PORT:
                 mutex_lock(&conn->xmitmutex);
                 if (!tcp_conn->sock) {
@@ -2343,30 +2257,9 @@ iscsi_conn_get_param(struct iscsi_cls_conn *cls_conn,
                 }
 
                 inet = inet_sk(tcp_conn->sock->sk);
-                *value = be16_to_cpu(inet->dport);
+                len = sprintf(buf, "%hu\n", be16_to_cpu(inet->dport));
                 mutex_unlock(&conn->xmitmutex);
-        case ISCSI_PARAM_EXP_STATSN:
-                *value = conn->exp_statsn;
                 break;
-        default:
-                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 iscsi_tcp_conn *tcp_conn = 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 (!tcp_conn->sock) {
@@ -2388,7 +2281,7 @@ iscsi_conn_get_str_param(struct iscsi_cls_conn *cls_conn,
                 mutex_unlock(&conn->xmitmutex);
                 break;
         default:
-                return -EINVAL;
+                return iscsi_conn_get_param(cls_conn, param, buf);
         }
 
         return len;
@@ -2501,7 +2394,11 @@ static struct iscsi_transport iscsi_tcp_transport = {
                                   ISCSI_ERL |
                                   ISCSI_CONN_PORT |
                                   ISCSI_CONN_ADDRESS |
-                                  ISCSI_EXP_STATSN,
+                                  ISCSI_EXP_STATSN |
+                                  ISCSI_PERSISTENT_PORT |
+                                  ISCSI_PERSISTENT_ADDRESS |
+                                  ISCSI_TARGET_NAME |
+                                  ISCSI_TPGT,
         .host_template          = &iscsi_sht,
         .conndata_size          = sizeof(struct iscsi_conn),
         .max_conn               = 1,
@@ -2514,8 +2411,7 @@ static struct iscsi_transport iscsi_tcp_transport = {
         .bind_conn              = iscsi_tcp_conn_bind,
         .destroy_conn           = iscsi_tcp_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_conn_param         = iscsi_tcp_conn_get_param,
         .get_session_param      = iscsi_session_get_param,
         .start_conn             = iscsi_conn_start,
         .stop_conn              = iscsi_conn_stop,