X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=drivers%2Finfiniband%2Fhw%2Fipath%2Fipath_verbs.c;h=16aa61fd80856419957fdbe7ec6dcbb0054de026;hb=644b55ce889edd37d6406df26e2d96d7a7390749;hp=cd79a8ca5104213426ba5b82acea6131da2411e3;hpb=db5518cd09c21f0fa70af0a4ca38badd90622c9e;p=linux-2.6-omap-h63xx.git

diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c
index cd79a8ca510..16aa61fd808 100644
--- a/drivers/infiniband/hw/ipath/ipath_verbs.c
+++ b/drivers/infiniband/hw/ipath/ipath_verbs.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2006 QLogic, Inc. All rights reserved.
+ * Copyright (c) 2006, 2007 QLogic Corporation. All rights reserved.
  * Copyright (c) 2005, 2006 PathScale, Inc. All rights reserved.
  *
  * This software is available to you under a choice of one of two
@@ -164,9 +164,11 @@ void ipath_copy_sge(struct ipath_sge_state *ss, void *data, u32 length)
 	while (length) {
 		u32 len = sge->length;
 
-		BUG_ON(len == 0);
 		if (len > length)
 			len = length;
+		if (len > sge->sge_length)
+			len = sge->sge_length;
+		BUG_ON(len == 0);
 		memcpy(sge->vaddr, data, len);
 		sge->vaddr += len;
 		sge->length -= len;
@@ -202,9 +204,11 @@ void ipath_skip_sge(struct ipath_sge_state *ss, u32 length)
 	while (length) {
 		u32 len = sge->length;
 
-		BUG_ON(len == 0);
 		if (len > length)
 			len = length;
+		if (len > sge->sge_length)
+			len = sge->sge_length;
+		BUG_ON(len == 0);
 		sge->vaddr += len;
 		sge->length -= len;
 		sge->sge_length -= len;
@@ -323,6 +327,8 @@ static int ipath_post_receive(struct ib_qp *ibqp, struct ib_recv_wr *wr,
 		wqe->num_sge = wr->num_sge;
 		for (i = 0; i < wr->num_sge; i++)
 			wqe->sg_list[i] = wr->sg_list[i];
+		/* Make sure queue entry is written before the head index. */
+		smp_wmb();
 		wq->head = next;
 		spin_unlock_irqrestore(&qp->r_rq.lock, flags);
 	}
@@ -482,7 +488,7 @@ bail:;
  * This is called from ipath_do_rcv_timer() at interrupt level to check for
  * QPs which need retransmits and to collect performance numbers.
  */
-void ipath_ib_timer(struct ipath_ibdev *dev)
+static void ipath_ib_timer(struct ipath_ibdev *dev)
 {
 	struct ipath_qp *resend = NULL;
 	struct list_head *last;
@@ -1369,13 +1375,6 @@ static void __verbs_timer(unsigned long arg)
 {
 	struct ipath_devdata *dd = (struct ipath_devdata *) arg;
 
-	/*
-	 * If port 0 receive packet interrupts are not available, or
-	 * can be missed, poll the receive queue
-	 */
-	if (dd->ipath_flags & IPATH_POLL_RX_INTR)
-		ipath_kreceive(dd);
-
 	/* Handle verbs layer timeouts. */
 	ipath_ib_timer(dd->verbs_dev);