Merge branch 'master' into upstream

5 files changed, 57 insertions, 47 deletions

diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c
index 823131d58b3..f98518d912b 100644
--- a/drivers/infiniband/hw/ipath/ipath_driver.c
+++ b/drivers/infiniband/hw/ipath/ipath_driver.c
@@ -859,6 +859,38 @@ static void ipath_rcv_layer(struct ipath_devdata *dd, u32 etail,
 		__ipath_layer_rcv_lid(dd, hdr);
 }
 
+static void ipath_rcv_hdrerr(struct ipath_devdata *dd,
+			     u32 eflags,
+			     u32 l,
+			     u32 etail,
+			     u64 *rc)
+{
+	char emsg[128];
+	struct ipath_message_header *hdr;
+
+	get_rhf_errstring(eflags, emsg, sizeof emsg);
+	hdr = (struct ipath_message_header *)&rc[1];
+	ipath_cdbg(PKT, "RHFerrs %x hdrqtail=%x typ=%u "
+		   "tlen=%x opcode=%x egridx=%x: %s\n",
+		   eflags, l,
+		   ipath_hdrget_rcv_type((__le32 *) rc),
+		   ipath_hdrget_length_in_bytes((__le32 *) rc),
+		   be32_to_cpu(hdr->bth[0]) >> 24,
+		   etail, emsg);
+
+	/* Count local link integrity errors. */
+	if (eflags & (INFINIPATH_RHF_H_ICRCERR | INFINIPATH_RHF_H_VCRCERR)) {
+		u8 n = (dd->ipath_ibcctrl >>
+			INFINIPATH_IBCC_PHYERRTHRESHOLD_SHIFT) &
+			INFINIPATH_IBCC_PHYERRTHRESHOLD_MASK;
+
+		if (++dd->ipath_lli_counter > n) {
+			dd->ipath_lli_counter = 0;
+			dd->ipath_lli_errors++;
+		}
+	}
+}
+
 /*
  * ipath_kreceive - receive a packet
  * @dd: the infinipath device
@@ -875,7 +907,6 @@ void ipath_kreceive(struct ipath_devdata *dd)
 	struct ipath_message_header *hdr;
 	u32 eflags, i, etype, tlen, pkttot = 0, updegr=0, reloop=0;
 	static u64 totcalls;	/* stats, may eventually remove */
-	char emsg[128];
 
 	if (!dd->ipath_hdrqtailptr) {
 		ipath_dev_err(dd,
@@ -938,26 +969,9 @@ reloop:
 				   "%x\n", etype);
 		}
 
-		if (eflags & ~(INFINIPATH_RHF_H_TIDERR |
-			       INFINIPATH_RHF_H_IHDRERR)) {
-			get_rhf_errstring(eflags, emsg, sizeof emsg);
-			ipath_cdbg(PKT, "RHFerrs %x hdrqtail=%x typ=%u "
-				   "tlen=%x opcode=%x egridx=%x: %s\n",
-				   eflags, l, etype, tlen, bthbytes[0],
-				   ipath_hdrget_index((__le32 *) rc), emsg);
-			/* Count local link integrity errors. */
-			if (eflags & (INFINIPATH_RHF_H_ICRCERR |
-				      INFINIPATH_RHF_H_VCRCERR)) {
-				u8 n = (dd->ipath_ibcctrl >>
-					INFINIPATH_IBCC_PHYERRTHRESHOLD_SHIFT) &
-					INFINIPATH_IBCC_PHYERRTHRESHOLD_MASK;
-
-				if (++dd->ipath_lli_counter > n) {
-					dd->ipath_lli_counter = 0;
-					dd->ipath_lli_errors++;
-				}
-			}
-		} else if (etype == RCVHQ_RCV_TYPE_NON_KD) {
+		if (unlikely(eflags))
+			ipath_rcv_hdrerr(dd, eflags, l, etail, rc);
+		else if (etype == RCVHQ_RCV_TYPE_NON_KD) {
 				int ret = __ipath_verbs_rcv(dd, rc + 1,
 							    ebuf, tlen);
 				if (ret == -ENODEV)
@@ -981,25 +995,7 @@ reloop:
 		else if (etype == RCVHQ_RCV_TYPE_EXPECTED)
 			ipath_dbg("Bug: Expected TID, opcode %x; ignored\n",
 				  be32_to_cpu(hdr->bth[0]) & 0xff);
-		else if (eflags & (INFINIPATH_RHF_H_TIDERR |
-				   INFINIPATH_RHF_H_IHDRERR)) {
-			/*
-			 * This is a type 3 packet, only the LRH is in the
-			 * rcvhdrq, the rest of the header is in the eager
-			 * buffer.
-			 */
-			u8 opcode;
-			if (ebuf) {
-				bthbytes = (u8 *) ebuf;
-				opcode = *bthbytes;
-			}
-			else
-				opcode = 0;
-			get_rhf_errstring(eflags, emsg, sizeof emsg);
-			ipath_dbg("Err %x (%s), opcode %x, egrbuf %x, "
-				  "len %x\n", eflags, emsg, opcode, etail,
-				  tlen);
-		} else {
+		else {
 			/*
 			 * error packet, type of error	unknown.
 			 * Probably type 3, but we don't know, so don't
diff --git a/drivers/infiniband/hw/ipath/ipath_keys.c b/drivers/infiniband/hw/ipath/ipath_keys.c
index 46773c673a1..a5ca279370a 100644
--- a/drivers/infiniband/hw/ipath/ipath_keys.c
+++ b/drivers/infiniband/hw/ipath/ipath_keys.c
@@ -197,6 +197,21 @@ int ipath_rkey_ok(struct ipath_ibdev *dev, struct ipath_sge_state *ss,
 	size_t off;
 	int ret;
 
+	/*
+	 * We use RKEY == zero for physical addresses
+	 * (see ipath_get_dma_mr).
+	 */
+	if (rkey == 0) {
+		sge->mr = NULL;
+		sge->vaddr = phys_to_virt(vaddr);
+		sge->length = len;
+		sge->sge_length = len;
+		ss->sg_list = NULL;
+		ss->num_sge = 1;
+		ret = 1;
+		goto bail;
+	}
+
 	mr = rkt->table[(rkey >> (32 - ib_ipath_lkey_table_size))];
 	if (unlikely(mr == NULL || mr->lkey != rkey)) {
 		ret = 0;
diff --git a/drivers/infiniband/hw/ipath/ipath_verbs.c b/drivers/infiniband/hw/ipath/ipath_verbs.c
index 56ac336dd1e..d70a9b6b523 100644
--- a/drivers/infiniband/hw/ipath/ipath_verbs.c
+++ b/drivers/infiniband/hw/ipath/ipath_verbs.c
@@ -191,10 +191,6 @@ void ipath_skip_sge(struct ipath_sge_state *ss, u32 length)
 {
 	struct ipath_sge *sge = &ss->sge;
 
-	while (length > sge->sge_length) {
-		length -= sge->sge_length;
-		ss->sge = *ss->sg_list++;
-	}
 	while (length) {
 		u32 len = sge->length;
 
@@ -627,6 +623,7 @@ static int ipath_query_device(struct ib_device *ibdev,
 	props->device_cap_flags = IB_DEVICE_BAD_PKEY_CNTR |
 		IB_DEVICE_BAD_QKEY_CNTR | IB_DEVICE_SHUTDOWN_PORT |
 		IB_DEVICE_SYS_IMAGE_GUID;
+	props->page_size_cap = PAGE_SIZE;
 	props->vendor_id = ipath_layer_get_vendorid(dev->dd);
 	props->vendor_part_id = ipath_layer_get_deviceid(dev->dd);
 	props->hw_ver = ipath_layer_get_pcirev(dev->dd);
diff --git a/drivers/infiniband/hw/mthca/mthca_cmd.c b/drivers/infiniband/hw/mthca/mthca_cmd.c
index d0f7731802c..deabc14b4ea 100644
--- a/drivers/infiniband/hw/mthca/mthca_cmd.c
+++ b/drivers/infiniband/hw/mthca/mthca_cmd.c
@@ -778,11 +778,12 @@ int mthca_QUERY_FW(struct mthca_dev *dev, u8 *status)
 		((dev->fw_ver & 0xffff0000ull) >> 16) |
 		((dev->fw_ver & 0x0000ffffull) << 16);
 
+	MTHCA_GET(lg, outbox, QUERY_FW_MAX_CMD_OFFSET);
+	dev->cmd.max_cmds = 1 << lg;
+
 	mthca_dbg(dev, "FW version %012llx, max commands %d\n",
 		  (unsigned long long) dev->fw_ver, dev->cmd.max_cmds);
 
-	MTHCA_GET(lg, outbox, QUERY_FW_MAX_CMD_OFFSET);
-	dev->cmd.max_cmds = 1 << lg;
 	MTHCA_GET(dev->catas_err.addr, outbox, QUERY_FW_ERR_START_OFFSET);
 	MTHCA_GET(dev->catas_err.size, outbox, QUERY_FW_ERR_SIZE_OFFSET);
 
diff --git a/drivers/infiniband/hw/mthca/mthca_srq.c b/drivers/infiniband/hw/mthca/mthca_srq.c
index fab417c5cf4..b60a9d79ae5 100644
--- a/drivers/infiniband/hw/mthca/mthca_srq.c
+++ b/drivers/infiniband/hw/mthca/mthca_srq.c
@@ -370,7 +370,8 @@ int mthca_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
 		return -EINVAL;
 
 	if (attr_mask & IB_SRQ_LIMIT) {
-		if (attr->srq_limit > srq->max)
+		u32 max_wr = mthca_is_memfree(dev) ? srq->max - 1 : srq->max;
+		if (attr->srq_limit > max_wr)
 			return -EINVAL;
 
 		mutex_lock(&srq->mutex);