[SCSI] be2iscsi: Move freeing of resources to stop_conn

We need to hold on to ep resources untill invalidate and
  close connection are completed

Signed-off-by: Jayamohan Kallickal <jayamohank@serverengines.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

diff --git a/drivers/scsi/be2iscsi/be_iscsi.c b/drivers/scsi/be2iscsi/be_iscsi.c
index 2b3c58b..f229184 100644 (file)
--- a/drivers/scsi/be2iscsi/be_iscsi.c
+++ b/drivers/scsi/be2iscsi/be_iscsi.c
@@ -460,14 +460,12 @@ static void beiscsi_put_cid(struct beiscsi_hba *phba, unsigned short cid)
  * beiscsi_free_ep - free endpoint
  * @ep:        pointer to iscsi endpoint structure
  */
-static void beiscsi_free_ep(struct iscsi_endpoint *ep)
+static void beiscsi_free_ep(struct beiscsi_endpoint *beiscsi_ep)
 {
-       struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
        struct beiscsi_hba *phba = beiscsi_ep->phba;
 
        beiscsi_put_cid(phba, beiscsi_ep->ep_cid);
        beiscsi_ep->phba = NULL;
-       iscsi_destroy_endpoint(ep);
 }
 
 /**
@@ -498,7 +496,7 @@ beiscsi_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
 
        if (phba->state) {
                ret = -EBUSY;
-               SE_DEBUG(DBG_LVL_1, "The Adapet state is Not UP \n");
+               SE_DEBUG(DBG_LVL_1, "The Adapter state is Not UP \n");
                return ERR_PTR(ret);
        }
 
@@ -510,9 +508,10 @@ beiscsi_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
 
        beiscsi_ep = ep->dd_data;
        beiscsi_ep->phba = phba;
+       beiscsi_ep->openiscsi_ep = ep;
 
        if (beiscsi_open_conn(ep, NULL, dst_addr, non_blocking)) {
-               SE_DEBUG(DBG_LVL_1, "Failed in allocate iscsi cid\n");
+               SE_DEBUG(DBG_LVL_1, "Failed in beiscsi_open_conn \n");
                ret = -ENOMEM;
                goto free_ep;
        }
@@ -520,7 +519,7 @@ beiscsi_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
        return ep;
 
 free_ep:
-       beiscsi_free_ep(ep);
+       beiscsi_free_ep(beiscsi_ep);
        return ERR_PTR(ret);
 }
 
@@ -547,15 +546,14 @@ int beiscsi_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
  * @ep: The iscsi endpoint
  * @flag: The type of connection closure
  */
-static int beiscsi_close_conn(struct iscsi_endpoint *ep, int flag)
+static int beiscsi_close_conn(struct  beiscsi_endpoint *beiscsi_ep, int flag)
 {
        int ret = 0;
-       struct beiscsi_endpoint *beiscsi_ep = ep->dd_data;
        struct beiscsi_hba *phba = beiscsi_ep->phba;
 
        if (MGMT_STATUS_SUCCESS !=
            mgmt_upload_connection(phba, beiscsi_ep->ep_cid,
-               CONNECTION_UPLOAD_GRACEFUL)) {
+               flag)) {
                SE_DEBUG(DBG_LVL_8, "upload failed for cid 0x%x",
                         beiscsi_ep->ep_cid);
                ret = -1;
@@ -575,19 +573,15 @@ void beiscsi_ep_disconnect(struct iscsi_endpoint *ep)
        struct beiscsi_conn *beiscsi_conn;
        struct beiscsi_endpoint *beiscsi_ep;
        struct beiscsi_hba *phba;
-       int flag = 0;
 
        beiscsi_ep = ep->dd_data;
        phba = beiscsi_ep->phba;
-       SE_DEBUG(DBG_LVL_8, "In beiscsi_ep_disconnect\n");
 
        if (beiscsi_ep->conn) {
                beiscsi_conn = beiscsi_ep->conn;
                iscsi_suspend_queue(beiscsi_conn->conn);
-               beiscsi_close_conn(ep, flag);
        }
 
-       beiscsi_free_ep(ep);
 }
 
 /**
@@ -637,6 +631,9 @@ void beiscsi_conn_stop(struct iscsi_cls_conn *cls_conn, int flag)
                         "mgmt_invalidate_connection Failed for cid=%d \n",
                         beiscsi_ep->ep_cid);
        }
+       beiscsi_close_conn(beiscsi_ep, CONNECTION_UPLOAD_GRACEFUL);
+       beiscsi_free_ep(beiscsi_ep);
+       iscsi_destroy_endpoint(beiscsi_ep->openiscsi_ep);
        beiscsi_unbind_conn_to_cid(phba, beiscsi_ep->ep_cid);
        iscsi_conn_stop(cls_conn, flag);
 }

diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 6c512b6..1390023 100644 (file)
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -1434,6 +1434,8 @@ static unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq)
        unsigned int tot_nump = 0;
        struct beiscsi_conn *beiscsi_conn;
        struct sgl_handle *psgl_handle = NULL;
+       struct beiscsi_endpoint *beiscsi_ep;
+       struct iscsi_endpoint *ep;
        struct beiscsi_hba *phba;
 
        cq = pbe_eq->cq;
@@ -1449,28 +1451,15 @@ static unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq)
                                      dw[offsetof(struct amap_sol_cqe_ring,
                                      icd_index) / 32] & SOL_ICD_INDEX_MASK)
                                      >> 6)];
-                       beiscsi_conn = phba->conn_table[psgl_handle->cid];
-                       if (!beiscsi_conn || !beiscsi_conn->ep) {
-                               shost_printk(KERN_WARNING, phba->shost,
-                                    "Connection table empty for cid = %d\n",
-                                     psgl_handle->cid);
-                               return 0;
-                       }
-
+                       ep = phba->ep_array[psgl_handle->cid];
                } else {
-                       beiscsi_conn = phba->conn_table[(u32) ((sol->
-                                dw[offsetof(struct amap_sol_cqe, cid) / 32] &
-                                SOL_CID_MASK) >> 6) -
+                       ep = phba->ep_array[(u32) ((sol->
+                                  dw[offsetof(struct amap_sol_cqe, cid) / 32] &
+                                  SOL_CID_MASK) >> 6) -
                                   phba->fw_config.iscsi_cid_start];
-                       if (!beiscsi_conn || !beiscsi_conn->ep) {
-                               shost_printk(KERN_WARNING, phba->shost,
-                                    "Connection table empty for cid = %d\n",
-                                    (u32)(sol->dw[offsetof(struct amap_sol_cqe,
-                                    cid) / 32] & SOL_CID_MASK) >> 6);
-                               return 0;
-                       }
                }
-
+               beiscsi_ep = ep->dd_data;
+               beiscsi_conn = beiscsi_ep->conn;
                if (num_processed >= 32) {
                        hwi_ring_cq_db(phba, cq->id,
                                        num_processed, 0, 0);
@@ -3044,7 +3033,7 @@ static int hba_setup_cid_tbls(struct beiscsi_hba *phba)
 {
        int i, new_cid;
 
-       phba->cid_array = kmalloc(sizeof(void *) * phba->params.cxns_per_ctrl,
+       phba->cid_array = kzalloc(sizeof(void *) * phba->params.cxns_per_ctrl,
                                  GFP_KERNEL);
        if (!phba->cid_array) {
                shost_printk(KERN_ERR, phba->shost,
@@ -3052,7 +3041,7 @@ static int hba_setup_cid_tbls(struct beiscsi_hba *phba)
                             "hba_setup_cid_tbls\n");
                return -ENOMEM;
        }
-       phba->ep_array = kmalloc(sizeof(struct iscsi_endpoint *) *
+       phba->ep_array = kzalloc(sizeof(struct iscsi_endpoint *) *
                                 phba->params.cxns_per_ctrl * 2, GFP_KERNEL);
        if (!phba->ep_array) {
                shost_printk(KERN_ERR, phba->shost,

diff --git a/drivers/scsi/be2iscsi/be_mgmt.h b/drivers/scsi/be2iscsi/be_mgmt.h
index 24eaff9..6bc59e8 100644 (file)
--- a/drivers/scsi/be2iscsi/be_mgmt.h
+++ b/drivers/scsi/be2iscsi/be_mgmt.h
@@ -231,6 +231,7 @@ struct beiscsi_endpoint {
        struct beiscsi_hba *phba;
        struct beiscsi_sess *sess;
        struct beiscsi_conn *conn;
+       struct iscsi_endpoint *openiscsi_ep;
        unsigned short ip_type;
        char dst6_addr[ISCSI_ADDRESS_BUF_LEN];
        unsigned long dst_addr;