IB/iser: Rename ib_conn -> iser_conn

Two reasons why we choose to do this:

1. No point today calling struct iser_conn by another name ib_conn
2. In the next patches we will restructure iser control plane representation
   - struct iser_conn: connection logical representation
   - struct ib_conn: connection RDMA layout representation

This patch does not change any functionality.
Signed-off-by: Ariel Nahum <arieln@mellanox.com>
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

drivers/infiniband/ulp/iser/iscsi_iser.c

@@ -147,8 +147,8 @@ static int iscsi_iser_pdu_alloc(struct iscsi_task *task, uint8_t opcode)
 int iser_initialize_task_headers(struct iscsi_task *task,
 						struct iser_tx_desc *tx_desc)
 {
-	struct iser_conn       *ib_conn   = task->conn->dd_data;
-	struct iser_device     *device    = ib_conn->device;
+	struct iser_conn       *iser_conn   = task->conn->dd_data;
+	struct iser_device     *device    = iser_conn->device;
 	struct iscsi_iser_task *iser_task = task->dd_data;
 	u64 dma_addr;
 
@@ -162,7 +162,7 @@ int iser_initialize_task_headers(struct iscsi_task *task,
 	tx_desc->tx_sg[0].length = ISER_HEADERS_LEN;
 	tx_desc->tx_sg[0].lkey   = device->mr->lkey;
 
-	iser_task->ib_conn = ib_conn;
+	iser_task->iser_conn = iser_conn;
 	return 0;
 }
 /**
@@ -290,8 +290,8 @@ static void iscsi_iser_cleanup_task(struct iscsi_task *task)
 {
 	struct iscsi_iser_task *iser_task = task->dd_data;
 	struct iser_tx_desc    *tx_desc   = &iser_task->desc;
-	struct iser_conn       *ib_conn	  = task->conn->dd_data;
-	struct iser_device     *device	  = ib_conn->device;
+	struct iser_conn       *iser_conn	  = task->conn->dd_data;
+	struct iser_device     *device	  = iser_conn->device;
 
 	ib_dma_unmap_single(device->ib_device,
 		tx_desc->dma_addr, ISER_HEADERS_LEN, DMA_TO_DEVICE);
@@ -344,7 +344,7 @@ iscsi_iser_conn_bind(struct iscsi_cls_session *cls_session,
 		     int is_leading)
 {
 	struct iscsi_conn *conn = cls_conn->dd_data;
-	struct iser_conn *ib_conn;
+	struct iser_conn *iser_conn;
 	struct iscsi_endpoint *ep;
 	int error;
 
@@ -360,30 +360,30 @@ iscsi_iser_conn_bind(struct iscsi_cls_session *cls_session,
 			 (unsigned long long)transport_eph);
 		return -EINVAL;
 	}
-	ib_conn = ep->dd_data;
+	iser_conn = ep->dd_data;
 
-	mutex_lock(&ib_conn->state_mutex);
-	if (ib_conn->state != ISER_CONN_UP) {
+	mutex_lock(&iser_conn->state_mutex);
+	if (iser_conn->state != ISER_CONN_UP) {
 		error = -EINVAL;
 		iser_err("iser_conn %p state is %d, teardown started\n",
-			 ib_conn, ib_conn->state);
+			 iser_conn, iser_conn->state);
 		goto out;
 	}
 
-	error = iser_alloc_rx_descriptors(ib_conn, conn->session);
+	error = iser_alloc_rx_descriptors(iser_conn, conn->session);
 	if (error)
 		goto out;
 
 	/* binds the iSER connection retrieved from the previously
 	 * connected ep_handle to the iSCSI layer connection. exchanges
 	 * connection pointers */
-	iser_info("binding iscsi conn %p to ib_conn %p\n", conn, ib_conn);
+	iser_info("binding iscsi conn %p to iser_conn %p\n", conn, iser_conn);
 
-	conn->dd_data = ib_conn;
-	ib_conn->iscsi_conn = conn;
+	conn->dd_data = iser_conn;
+	iser_conn->iscsi_conn = conn;
 
 out:
-	mutex_unlock(&ib_conn->state_mutex);
+	mutex_unlock(&iser_conn->state_mutex);
 	return error;
 }
 
@@ -391,11 +391,11 @@ static int
 iscsi_iser_conn_start(struct iscsi_cls_conn *cls_conn)
 {
 	struct iscsi_conn *iscsi_conn;
-	struct iser_conn *ib_conn;
+	struct iser_conn *iser_conn;
 
 	iscsi_conn = cls_conn->dd_data;
-	ib_conn = iscsi_conn->dd_data;
-	reinit_completion(&ib_conn->stop_completion);
+	iser_conn = iscsi_conn->dd_data;
+	reinit_completion(&iser_conn->stop_completion);
 
 	return iscsi_conn_start(cls_conn);
 }
@@ -404,18 +404,18 @@ static void
 iscsi_iser_conn_stop(struct iscsi_cls_conn *cls_conn, int flag)
 {
 	struct iscsi_conn *conn = cls_conn->dd_data;
-	struct iser_conn *ib_conn = conn->dd_data;
+	struct iser_conn *iser_conn = conn->dd_data;
 
-	iser_dbg("stopping iscsi_conn: %p, ib_conn: %p\n", conn, ib_conn);
+	iser_dbg("stopping iscsi_conn: %p, iser_conn: %p\n", conn, iser_conn);
 	iscsi_conn_stop(cls_conn, flag);
 
 	/*
 	 * Userspace may have goofed up and not bound the connection or
 	 * might have only partially setup the connection.
 	 */
-	if (ib_conn) {
+	if (iser_conn) {
 		conn->dd_data = NULL;
-		complete(&ib_conn->stop_completion);
+		complete(&iser_conn->stop_completion);
 	}
 }
 
@@ -447,7 +447,7 @@ iscsi_iser_session_create(struct iscsi_endpoint *ep,
 	struct iscsi_cls_session *cls_session;
 	struct iscsi_session *session;
 	struct Scsi_Host *shost;
-	struct iser_conn *ib_conn = NULL;
+	struct iser_conn *iser_conn = NULL;
 
 	shost = iscsi_host_alloc(&iscsi_iser_sht, 0, 0);
 	if (!shost)
@@ -464,9 +464,9 @@ iscsi_iser_session_create(struct iscsi_endpoint *ep,
 	 * the leading conn's ep so this will be NULL;
 	 */
 	if (ep) {
-		ib_conn = ep->dd_data;
-		if (ib_conn->pi_support) {
-			u32 sig_caps = ib_conn->device->dev_attr.sig_prot_cap;
+		iser_conn = ep->dd_data;
+		if (iser_conn->pi_support) {
+			u32 sig_caps = iser_conn->device->dev_attr.sig_prot_cap;
 
 			scsi_host_set_prot(shost, iser_dif_prot_caps(sig_caps));
 			if (iser_pi_guard)
@@ -476,8 +476,8 @@ iscsi_iser_session_create(struct iscsi_endpoint *ep,
 		}
 	}
 
-	if (iscsi_host_add(shost,
-			   ep ? ib_conn->device->ib_device->dma_device : NULL))
+	if (iscsi_host_add(shost, ep ?
+			   iser_conn->device->ib_device->dma_device : NULL))
 		goto free_host;
 
 	if (cmds_max > ISER_DEF_XMIT_CMDS_MAX) {
@@ -577,17 +577,17 @@ iscsi_iser_conn_get_stats(struct iscsi_cls_conn *cls_conn, struct iscsi_stats *s
 static int iscsi_iser_get_ep_param(struct iscsi_endpoint *ep,
 				   enum iscsi_param param, char *buf)
 {
-	struct iser_conn *ib_conn = ep->dd_data;
+	struct iser_conn *iser_conn = ep->dd_data;
 	int len;
 
 	switch (param) {
 	case ISCSI_PARAM_CONN_PORT:
 	case ISCSI_PARAM_CONN_ADDRESS:
-		if (!ib_conn || !ib_conn->cma_id)
+		if (!iser_conn || !iser_conn->cma_id)
 			return -ENOTCONN;
 
 		return iscsi_conn_get_addr_param((struct sockaddr_storage *)
-					&ib_conn->cma_id->route.addr.dst_addr,
+					&iser_conn->cma_id->route.addr.dst_addr,
 					param, buf);
 		break;
 	default:
@@ -602,24 +602,24 @@ iscsi_iser_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
 		      int non_blocking)
 {
 	int err;
-	struct iser_conn *ib_conn;
+	struct iser_conn *iser_conn;
 	struct iscsi_endpoint *ep;
 
 	ep = iscsi_create_endpoint(0);
 	if (!ep)
 		return ERR_PTR(-ENOMEM);
 
-	ib_conn = kzalloc(sizeof(*ib_conn), GFP_KERNEL);
-	if (!ib_conn) {
+	iser_conn = kzalloc(sizeof(*iser_conn), GFP_KERNEL);
+	if (!iser_conn) {
 		err = -ENOMEM;
 		goto failure;
 	}
 
-	ep->dd_data = ib_conn;
-	ib_conn->ep = ep;
-	iser_conn_init(ib_conn);
+	ep->dd_data = iser_conn;
+	iser_conn->ep = ep;
+	iser_conn_init(iser_conn);
 
-	err = iser_connect(ib_conn, NULL, dst_addr, non_blocking);
+	err = iser_connect(iser_conn, NULL, dst_addr, non_blocking);
 	if (err)
 		goto failure;
 
@@ -632,22 +632,22 @@ iscsi_iser_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
 static int
 iscsi_iser_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
 {
-	struct iser_conn *ib_conn;
+	struct iser_conn *iser_conn;
 	int rc;
 
-	ib_conn = ep->dd_data;
-	rc = wait_for_completion_interruptible_timeout(&ib_conn->up_completion,
+	iser_conn = ep->dd_data;
+	rc = wait_for_completion_interruptible_timeout(&iser_conn->up_completion,
 						       msecs_to_jiffies(timeout_ms));
 	/* if conn establishment failed, return error code to iscsi */
 	if (rc == 0) {
-		mutex_lock(&ib_conn->state_mutex);
-		if (ib_conn->state == ISER_CONN_TERMINATING ||
-		    ib_conn->state == ISER_CONN_DOWN)
+		mutex_lock(&iser_conn->state_mutex);
+		if (iser_conn->state == ISER_CONN_TERMINATING ||
+		    iser_conn->state == ISER_CONN_DOWN)
 			rc = -1;
-		mutex_unlock(&ib_conn->state_mutex);
+		mutex_unlock(&iser_conn->state_mutex);
 	}
 
-	iser_info("ib conn %p rc = %d\n", ib_conn, rc);
+	iser_info("ib conn %p rc = %d\n", iser_conn, rc);
 
 	if (rc > 0)
 		return 1; /* success, this is the equivalent of POLLOUT */
@@ -660,12 +660,14 @@ iscsi_iser_ep_poll(struct iscsi_endpoint *ep, int timeout_ms)
 static void
 iscsi_iser_ep_disconnect(struct iscsi_endpoint *ep)
 {
-	struct iser_conn *ib_conn;
+	struct iser_conn *iser_conn;
 
-	ib_conn = ep->dd_data;
-	iser_info("ep %p ib conn %p state %d\n", ep, ib_conn, ib_conn->state);
-	mutex_lock(&ib_conn->state_mutex);
-	iser_conn_terminate(ib_conn);
+	iser_conn = ep->dd_data;
+	iser_info("ep %p iser conn %p state %d\n",
+		  ep, iser_conn, iser_conn->state);
+
+	mutex_lock(&iser_conn->state_mutex);
+	iser_conn_terminate(iser_conn);
 
 	/*
 	 * if iser_conn and iscsi_conn are bound, we must wait for
@@ -673,14 +675,14 @@ iscsi_iser_ep_disconnect(struct iscsi_endpoint *ep)
 	 * the iser resources. Otherwise we are safe to free resources
 	 * immediately.
 	 */
-	if (ib_conn->iscsi_conn) {
-		INIT_WORK(&ib_conn->release_work, iser_release_work);
-		queue_work(release_wq, &ib_conn->release_work);
-		mutex_unlock(&ib_conn->state_mutex);
+	if (iser_conn->iscsi_conn) {
+		INIT_WORK(&iser_conn->release_work, iser_release_work);
+		queue_work(release_wq, &iser_conn->release_work);
+		mutex_unlock(&iser_conn->state_mutex);
 	} else {
-		ib_conn->state = ISER_CONN_DOWN;
-		mutex_unlock(&ib_conn->state_mutex);
-		iser_conn_release(ib_conn);
+		iser_conn->state = ISER_CONN_DOWN;
+		mutex_unlock(&iser_conn->state_mutex);
+		iser_conn_release(iser_conn);
 	}
 	iscsi_destroy_endpoint(ep);
 }
@@ -843,7 +845,7 @@ static int __init iser_init(void)
 
 static void __exit iser_exit(void)
 {
-	struct iser_conn *ib_conn, *n;
+	struct iser_conn *iser_conn, *n;
 	int connlist_empty;
 
 	iser_dbg("Removing iSER datamover...\n");
@@ -856,8 +858,9 @@ static void __exit iser_exit(void)
 	if (!connlist_empty) {
 		iser_err("Error cleanup stage completed but we still have iser "
 			 "connections, destroying them anyway.\n");
-		list_for_each_entry_safe(ib_conn, n, &ig.connlist, conn_list) {
-			iser_conn_release(ib_conn);
+		list_for_each_entry_safe(iser_conn, n, &ig.connlist,
+					 conn_list) {
+			iser_conn_release(iser_conn);
 		}
 	}
 

drivers/infiniband/ulp/iser/iscsi_iser.h

@@ -179,7 +179,7 @@ struct iser_cm_hdr {
 /* Length of an object name string */
 #define ISER_OBJECT_NAME_SIZE		    64
 
-enum iser_ib_conn_state {
+enum iser_conn_state {
 	ISER_CONN_INIT,		   /* descriptor allocd, no conn          */
 	ISER_CONN_PENDING,	   /* in the process of being established */
 	ISER_CONN_UP,		   /* up and running                      */
@@ -281,9 +281,9 @@ struct iser_device {
 	int                          cq_active_qps[ISER_MAX_CQ];
 	int			     cqs_used;
 	struct iser_cq_desc	     *cq_desc;
-	int                          (*iser_alloc_rdma_reg_res)(struct iser_conn *ib_conn,
+	int                          (*iser_alloc_rdma_reg_res)(struct iser_conn *iser_conn,
 								unsigned cmds_max);
-	void                         (*iser_free_rdma_reg_res)(struct iser_conn *ib_conn);
+	void                         (*iser_free_rdma_reg_res)(struct iser_conn *iser_conn);
 	int                          (*iser_reg_rdma_mem)(struct iscsi_iser_task *iser_task,
 							  enum iser_data_dir cmd_dir);
 	void                         (*iser_unreg_rdma_mem)(struct iscsi_iser_task *iser_task,
@@ -320,7 +320,7 @@ struct fast_reg_descriptor {
 struct iser_conn {
 	struct iscsi_conn	     *iscsi_conn;
 	struct iscsi_endpoint	     *ep;
-	enum iser_ib_conn_state	     state;	    /* rdma connection state   */
+	enum iser_conn_state	     state;	    /* rdma connection state   */
 	atomic_t		     refcount;
 	spinlock_t		     lock;	    /* used for state changes  */
 	struct iser_device           *device;       /* device context          */
@@ -363,7 +363,7 @@ struct iser_conn {
 
 struct iscsi_iser_task {
 	struct iser_tx_desc          desc;
-	struct iser_conn	     *ib_conn;
+	struct iser_conn	     *iser_conn;
 	enum iser_task_status 	     status;
 	struct scsi_cmnd	     *sc;
 	int                          command_sent;  /* set if command  sent  */
@@ -419,25 +419,26 @@ void iscsi_iser_recv(struct iscsi_conn *conn,
 		     char                   *rx_data,
 		     int                    rx_data_len);
 
-void iser_conn_init(struct iser_conn *ib_conn);
+void iser_conn_init(struct iser_conn *iser_conn);
 
-void iser_conn_release(struct iser_conn *ib_conn);
+void iser_conn_release(struct iser_conn *iser_conn);
 
-void iser_conn_terminate(struct iser_conn *ib_conn);
+void iser_conn_terminate(struct iser_conn *iser_conn);
 
 void iser_release_work(struct work_struct *work);
 
 void iser_rcv_completion(struct iser_rx_desc *desc,
 			 unsigned long    dto_xfer_len,
-			struct iser_conn *ib_conn);
+			struct iser_conn *iser_conn);
 
-void iser_snd_completion(struct iser_tx_desc *desc, struct iser_conn *ib_conn);
+void iser_snd_completion(struct iser_tx_desc *desc,
+			 struct iser_conn *iser_conn);
 
 void iser_task_rdma_init(struct iscsi_iser_task *task);
 
 void iser_task_rdma_finalize(struct iscsi_iser_task *task);
 
-void iser_free_rx_descriptors(struct iser_conn *ib_conn);
+void iser_free_rx_descriptors(struct iser_conn *iser_conn);
 
 void iser_finalize_rdma_unaligned_sg(struct iscsi_iser_task *iser_task,
 				     struct iser_data_buf *mem,
@@ -449,12 +450,12 @@ int  iser_reg_rdma_mem_fmr(struct iscsi_iser_task *task,
 int  iser_reg_rdma_mem_fastreg(struct iscsi_iser_task *task,
 			       enum iser_data_dir cmd_dir);
 
-int  iser_connect(struct iser_conn   *ib_conn,
+int  iser_connect(struct iser_conn   *iser_conn,
 		  struct sockaddr    *src_addr,
 		  struct sockaddr    *dst_addr,
 		  int                non_blocking);
 
-int  iser_reg_page_vec(struct iser_conn     *ib_conn,
+int  iser_reg_page_vec(struct iser_conn     *iser_conn,
 		       struct iser_page_vec *page_vec,
 		       struct iser_mem_reg  *mem_reg);
 
@@ -463,9 +464,9 @@ void iser_unreg_mem_fmr(struct iscsi_iser_task *iser_task,
 void iser_unreg_mem_fastreg(struct iscsi_iser_task *iser_task,
 			    enum iser_data_dir cmd_dir);
 
-int  iser_post_recvl(struct iser_conn *ib_conn);
-int  iser_post_recvm(struct iser_conn *ib_conn, int count);
-int  iser_post_send(struct iser_conn *ib_conn, struct iser_tx_desc *tx_desc);
+int  iser_post_recvl(struct iser_conn *iser_conn);
+int  iser_post_recvm(struct iser_conn *iser_conn, int count);
+int  iser_post_send(struct iser_conn *iser_conn, struct iser_tx_desc *tx_desc);
 
 int iser_dma_map_task_data(struct iscsi_iser_task *iser_task,
 			    struct iser_data_buf       *data,
@@ -476,11 +477,12 @@ void iser_dma_unmap_task_data(struct iscsi_iser_task *iser_task,
 			      struct iser_data_buf *data);
 int  iser_initialize_task_headers(struct iscsi_task *task,
 			struct iser_tx_desc *tx_desc);
-int iser_alloc_rx_descriptors(struct iser_conn *ib_conn, struct iscsi_session *session);
-int iser_create_fmr_pool(struct iser_conn *ib_conn, unsigned cmds_max);
-void iser_free_fmr_pool(struct iser_conn *ib_conn);
-int iser_create_fastreg_pool(struct iser_conn *ib_conn, unsigned cmds_max);
-void iser_free_fastreg_pool(struct iser_conn *ib_conn);
+int iser_alloc_rx_descriptors(struct iser_conn *iser_conn,
+			      struct iscsi_session *session);
+int iser_create_fmr_pool(struct iser_conn *iser_conn, unsigned cmds_max);
+void iser_free_fmr_pool(struct iser_conn *iser_conn);
+int iser_create_fastreg_pool(struct iser_conn *iser_conn, unsigned cmds_max);
+void iser_free_fastreg_pool(struct iser_conn *iser_conn);
 u8 iser_check_task_pi_status(struct iscsi_iser_task *iser_task,
 			     enum iser_data_dir cmd_dir, sector_t *sector);
 #endif

drivers/infiniband/ulp/iser/iser_memory.c

@@ -49,7 +49,7 @@ static int iser_start_rdma_unaligned_sg(struct iscsi_iser_task *iser_task,
 					struct iser_data_buf *data_copy,
 					enum iser_data_dir cmd_dir)
 {
-	struct ib_device *dev = iser_task->ib_conn->device->ib_device;
+	struct ib_device *dev = iser_task->iser_conn->device->ib_device;
 	struct scatterlist *sgl = (struct scatterlist *)data->buf;
 	struct scatterlist *sg;
 	char *mem = NULL;
@@ -116,7 +116,7 @@ void iser_finalize_rdma_unaligned_sg(struct iscsi_iser_task *iser_task,
 	struct ib_device *dev;
 	unsigned long  cmd_data_len;
 
-	dev = iser_task->ib_conn->device->ib_device;
+	dev = iser_task->iser_conn->device->ib_device;
 
 	ib_dma_unmap_sg(dev, &data_copy->sg_single, 1,
 			(cmd_dir == ISER_DIR_OUT) ?
@@ -322,7 +322,7 @@ int iser_dma_map_task_data(struct iscsi_iser_task *iser_task,
 	struct ib_device *dev;
 
 	iser_task->dir[iser_dir] = 1;
-	dev = iser_task->ib_conn->device->ib_device;
+	dev = iser_task->iser_conn->device->ib_device;
 
 	data->dma_nents = ib_dma_map_sg(dev, data->buf, data->size, dma_dir);
 	if (data->dma_nents == 0) {
@@ -337,7 +337,7 @@ void iser_dma_unmap_task_data(struct iscsi_iser_task *iser_task,
 {
 	struct ib_device *dev;
 
-	dev = iser_task->ib_conn->device->ib_device;
+	dev = iser_task->iser_conn->device->ib_device;
 	ib_dma_unmap_sg(dev, data->buf, data->size, DMA_FROM_DEVICE);
 }
 
@@ -348,7 +348,7 @@ static int fall_to_bounce_buf(struct iscsi_iser_task *iser_task,
 			      enum iser_data_dir cmd_dir,
 			      int aligned_len)
 {
-	struct iscsi_conn    *iscsi_conn = iser_task->ib_conn->iscsi_conn;
+	struct iscsi_conn    *iscsi_conn = iser_task->iser_conn->iscsi_conn;
 
 	iscsi_conn->fmr_unalign_cnt++;
 	iser_warn("rdma alignment violation (%d/%d aligned) or FMR not supported\n",
@@ -377,8 +377,8 @@ static int fall_to_bounce_buf(struct iscsi_iser_task *iser_task,
 int iser_reg_rdma_mem_fmr(struct iscsi_iser_task *iser_task,
 			  enum iser_data_dir cmd_dir)
 {
-	struct iser_conn     *ib_conn = iser_task->ib_conn;
-	struct iser_device   *device = ib_conn->device;
+	struct iser_conn     *iser_conn = iser_task->iser_conn;
+	struct iser_device   *device = iser_conn->device;
 	struct ib_device     *ibdev = device->ib_device;
 	struct iser_data_buf *mem = &iser_task->data[cmd_dir];
 	struct iser_regd_buf *regd_buf;
@@ -418,8 +418,8 @@ int iser_reg_rdma_mem_fmr(struct iscsi_iser_task *iser_task,
 			 (unsigned long)regd_buf->reg.va,
 			 (unsigned long)regd_buf->reg.len);
 	} else { /* use FMR for multiple dma entries */
-		iser_page_vec_build(mem, ib_conn->fmr.page_vec, ibdev);
-		err = iser_reg_page_vec(ib_conn, ib_conn->fmr.page_vec,
+		iser_page_vec_build(mem, iser_conn->fmr.page_vec, ibdev);
+		err = iser_reg_page_vec(iser_conn, iser_conn->fmr.page_vec,
 					&regd_buf->reg);
 		if (err && err != -EAGAIN) {
 			iser_data_buf_dump(mem, ibdev);
@@ -427,12 +427,12 @@ int iser_reg_rdma_mem_fmr(struct iscsi_iser_task *iser_task,
 				 mem->dma_nents,
 				 ntoh24(iser_task->desc.iscsi_header.dlength));
 			iser_err("page_vec: data_size = 0x%x, length = %d, offset = 0x%x\n",
-				 ib_conn->fmr.page_vec->data_size,
-				 ib_conn->fmr.page_vec->length,
-				 ib_conn->fmr.page_vec->offset);
-			for (i = 0; i < ib_conn->fmr.page_vec->length; i++)
+				 iser_conn->fmr.page_vec->data_size,
+				 iser_conn->fmr.page_vec->length,
+				 iser_conn->fmr.page_vec->offset);
+			for (i = 0; i < iser_conn->fmr.page_vec->length; i++)
 				iser_err("page_vec[%d] = 0x%llx\n", i,
-					 (unsigned long long) ib_conn->fmr.page_vec->pages[i]);
+					 (unsigned long long)iser_conn->fmr.page_vec->pages[i]);
 		}
 		if (err)
 			return err;
@@ -533,7 +533,7 @@ iser_reg_sig_mr(struct iscsi_iser_task *iser_task,
 		struct fast_reg_descriptor *desc, struct ib_sge *data_sge,
 		struct ib_sge *prot_sge, struct ib_sge *sig_sge)
 {
-	struct iser_conn *ib_conn = iser_task->ib_conn;
+	struct iser_conn *iser_conn = iser_task->iser_conn;
 	struct iser_pi_context *pi_ctx = desc->pi_ctx;
 	struct ib_send_wr sig_wr, inv_wr;
 	struct ib_send_wr *bad_wr, *wr = NULL;
@@ -579,7 +579,7 @@ iser_reg_sig_mr(struct iscsi_iser_task *iser_task,
 	else
 		wr->next = &sig_wr;
 
-	ret = ib_post_send(ib_conn->qp, wr, &bad_wr);
+	ret = ib_post_send(iser_conn->qp, wr, &bad_wr);
 	if (ret) {
 		iser_err("reg_sig_mr failed, ret:%d\n", ret);
 		goto err;
@@ -609,8 +609,8 @@ static int iser_fast_reg_mr(struct iscsi_iser_task *iser_task,
 			    struct ib_sge *sge)
 {
 	struct fast_reg_descriptor *desc = regd_buf->reg.mem_h;
-	struct iser_conn *ib_conn = iser_task->ib_conn;
-	struct iser_device *device = ib_conn->device;
+	struct iser_conn *iser_conn = iser_task->iser_conn;
+	struct iser_device *device = iser_conn->device;
 	struct ib_device *ibdev = device->ib_device;
 	struct ib_mr *mr;
 	struct ib_fast_reg_page_list *frpl;
@@ -677,7 +677,7 @@ static int iser_fast_reg_mr(struct iscsi_iser_task *iser_task,
 	else
 		wr->next = &fastreg_wr;
 
-	ret = ib_post_send(ib_conn->qp, wr, &bad_wr);
+	ret = ib_post_send(iser_conn->qp, wr, &bad_wr);
 	if (ret) {
 		iser_err("fast registration failed, ret:%d\n", ret);
 		return ret;
@@ -700,8 +700,8 @@ static int iser_fast_reg_mr(struct iscsi_iser_task *iser_task,
 int iser_reg_rdma_mem_fastreg(struct iscsi_iser_task *iser_task,
 			      enum iser_data_dir cmd_dir)
 {
-	struct iser_conn *ib_conn = iser_task->ib_conn;
-	struct iser_device *device = ib_conn->device;
+	struct iser_conn *iser_conn = iser_task->iser_conn;
+	struct iser_device *device = iser_conn->device;
 	struct ib_device *ibdev = device->ib_device;
 	struct iser_data_buf *mem = &iser_task->data[cmd_dir];
 	struct iser_regd_buf *regd_buf = &iser_task->rdma_regd[cmd_dir];
@@ -724,11 +724,11 @@ int iser_reg_rdma_mem_fastreg(struct iscsi_iser_task *iser_task,
 
 	if (mem->dma_nents != 1 ||
 	    scsi_get_prot_op(iser_task->sc) != SCSI_PROT_NORMAL) {
-		spin_lock_irqsave(&ib_conn->lock, flags);
-		desc = list_first_entry(&ib_conn->fastreg.pool,
+		spin_lock_irqsave(&iser_conn->lock, flags);
+		desc = list_first_entry(&iser_conn->fastreg.pool,
 					struct fast_reg_descriptor, list);
 		list_del(&desc->list);
-		spin_unlock_irqrestore(&ib_conn->lock, flags);
+		spin_unlock_irqrestore(&iser_conn->lock, flags);
 		regd_buf->reg.mem_h = desc;
 	}
 
@@ -791,9 +791,9 @@ int iser_reg_rdma_mem_fastreg(struct iscsi_iser_task *iser_task,
 	return 0;
 err_reg:
 	if (desc) {
-		spin_lock_irqsave(&ib_conn->lock, flags);
-		list_add_tail(&desc->list, &ib_conn->fastreg.pool);
-		spin_unlock_irqrestore(&ib_conn->lock, flags);
+		spin_lock_irqsave(&iser_conn->lock, flags);
+		list_add_tail(&desc->list, &iser_conn->fastreg.pool);
+		spin_unlock_irqrestore(&iser_conn->lock, flags);
 	}
 
 	return err;