4 files changed, 13 insertions, 7 deletions

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
index c8ed53562c9b..b2f42835d76d 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
@@ -766,7 +766,7 @@ void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_
 		ipoib_dma_unmap_tx(priv, tx_req);
 		dev_kfree_skb_any(skb);
 	} else {
-		dev->trans_start = jiffies;
+		netif_trans_update(dev);
 		++tx->tx_head;
 
 		if (++priv->tx_outstanding == ipoib_sendq_size) {
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
index f0e55e47eb54..3643d559ba31 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -637,7 +637,7 @@ void ipoib_send(struct net_device *dev, struct sk_buff *skb,
 		if (netif_queue_stopped(dev))
 			netif_wake_queue(dev);
 	} else {
-		dev->trans_start = jiffies;
+		netif_trans_update(dev);
 
 		address->last_send = priv->tx_head;
 		++priv->tx_head;
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index 80807d6e5c4c..b940ef1c19c7 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -1036,7 +1036,7 @@ static void ipoib_timeout(struct net_device *dev)
 	struct ipoib_dev_priv *priv = netdev_priv(dev);
 
 	ipoib_warn(priv, "transmit timeout: latency %d msecs\n",
-		   jiffies_to_msecs(jiffies - dev->trans_start));
+		   jiffies_to_msecs(jiffies - dev_trans_start(dev)));
 	ipoib_warn(priv, "queue stopped %d, tx_head %u, tx_tail %u\n",
 		   netif_queue_stopped(dev),
 		   priv->tx_head, priv->tx_tail);
diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c
index 80b6bedc172f..64b3d11dcf1e 100644
--- a/drivers/infiniband/ulp/iser/iscsi_iser.c
+++ b/drivers/infiniband/ulp/iser/iscsi_iser.c
@@ -612,6 +612,7 @@ iscsi_iser_session_create(struct iscsi_endpoint *ep,
 	struct Scsi_Host *shost;
 	struct iser_conn *iser_conn = NULL;
 	struct ib_conn *ib_conn;
+	u32 max_fr_sectors;
 	u16 max_cmds;
 
 	shost = iscsi_host_alloc(&iscsi_iser_sht, 0, 0);
@@ -632,7 +633,6 @@ iscsi_iser_session_create(struct iscsi_endpoint *ep,
 		iser_conn = ep->dd_data;
 		max_cmds = iser_conn->max_cmds;
 		shost->sg_tablesize = iser_conn->scsi_sg_tablesize;
-		shost->max_sectors = iser_conn->scsi_max_sectors;
 
 		mutex_lock(&iser_conn->state_mutex);
 		if (iser_conn->state != ISER_CONN_UP) {
@@ -657,8 +657,6 @@ iscsi_iser_session_create(struct iscsi_endpoint *ep,
 		 */
 		shost->sg_tablesize = min_t(unsigned short, shost->sg_tablesize,
 			ib_conn->device->ib_device->attrs.max_fast_reg_page_list_len);
-		shost->max_sectors = min_t(unsigned int,
-			1024, (shost->sg_tablesize * PAGE_SIZE) >> 9);
 
 		if (iscsi_host_add(shost,
 				   ib_conn->device->ib_device->dma_device)) {
@@ -672,6 +670,15 @@ iscsi_iser_session_create(struct iscsi_endpoint *ep,
 			goto free_host;
 	}
 
+	/*
+	 * FRs or FMRs can only map up to a (device) page per entry, but if the
+	 * first entry is misaligned we'll end up using using two entries
+	 * (head and tail) for a single page worth data, so we have to drop
+	 * one segment from the calculation.
+	 */
+	max_fr_sectors = ((shost->sg_tablesize - 1) * PAGE_SIZE) >> 9;
+	shost->max_sectors = min(iser_max_sectors, max_fr_sectors);
+
 	if (cmds_max > max_cmds) {
 		iser_info("cmds_max changed from %u to %u\n",
 			  cmds_max, max_cmds);
@@ -989,7 +996,6 @@ static struct scsi_host_template iscsi_iser_sht = {
 	.queuecommand           = iscsi_queuecommand,
 	.change_queue_depth	= scsi_change_queue_depth,
 	.sg_tablesize           = ISCSI_ISER_DEF_SG_TABLESIZE,
-	.max_sectors            = ISER_DEF_MAX_SECTORS,
 	.cmd_per_lun            = ISER_DEF_CMD_PER_LUN,
 	.eh_abort_handler       = iscsi_eh_abort,
 	.eh_device_reset_handler= iscsi_eh_device_reset,