Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

Pull rdma updates from Doug Ledford:
 "Initial roundup of 4.6 merge window patches.

  This is the first of two pull requests.  It is the smaller request,
  but touches for more different things (this is everything but what is
  in or going into staging).  The pull request for the code in
  staging/rdma is on hold until after we decide what to do on the
  write/writev API issue and may be partially deferred until 4.7 as a
  result.

  Summary:

   - cxgb4 updates
   - nes updates
   - unification of iwarp portmapper code to core
   - add drain_cq API
   - various ib_core updates
   - minor ipoib updates
   - minor mlx4 updates
   - more significant mlx5 updates (including a minor merge conflict
     with net-next tree...merge is simple to resolve and Stephen's
     resolution was confirmed by Mellanox)
   - trivial net/9p rdma conversion
   - ocrdma RoCEv2 update
   - srpt updates"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (85 commits)
  iwpm: crash fix for large connections test
  iw_cxgb3: support for iWARP port mapping
  iw_cxgb4: remove port mapper related code
  iw_nes: remove port mapper related code
  iwcm: common code for port mapper
  net/9p: convert to new CQ API
  IB/mlx5: Add support for don't trap rules
  net/mlx5_core: Introduce forward to next priority action
  net/mlx5_core: Create anchor of last flow table
  iser: Accept arbitrary sg lists mapping if the device supports it
  mlx5: Add arbitrary sg list support
  IB/core: Add arbitrary sg_list support
  IB/mlx5: Expose correct max_fast_reg_page_list_len
  IB/mlx5: Make coding style more consistent
  IB/mlx5: Convert UMR CQ to new CQ API
  IB/ocrdma: Skip using unneeded intermediate variable
  IB/ocrdma: Skip using unneeded intermediate variable
  IB/ocrdma: Delete unnecessary variable initialisations in 11 functions
  IB/core: Documentation fix in the MAD header file
  IB/core: trivial prink cleanup.
  ...

1 files changed, 26 insertions, 12 deletions

diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
index 12420e4..a8496a1 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
@@ -419,7 +419,7 @@ static struct ocrdma_pd *_ocrdma_alloc_pd(struct ocrdma_dev *dev,
 					  struct ib_udata *udata)
 {
 	struct ocrdma_pd *pd = NULL;
-	int status = 0;
+	int status;
 
 	pd = kzalloc(sizeof(*pd), GFP_KERNEL);
 	if (!pd)
@@ -468,7 +468,7 @@ static inline int is_ucontext_pd(struct ocrdma_ucontext *uctx,
 static int _ocrdma_dealloc_pd(struct ocrdma_dev *dev,
 			      struct ocrdma_pd *pd)
 {
-	int status = 0;
+	int status;
 
 	if (dev->pd_mgr->pd_prealloc_valid)
 		status = ocrdma_put_pd_num(dev, pd->id, pd->dpp_enabled);
@@ -596,7 +596,7 @@ map_err:
 
 int ocrdma_dealloc_ucontext(struct ib_ucontext *ibctx)
 {
-	int status = 0;
+	int status;
 	struct ocrdma_mm *mm, *tmp;
 	struct ocrdma_ucontext *uctx = get_ocrdma_ucontext(ibctx);
 	struct ocrdma_dev *dev = get_ocrdma_dev(ibctx->device);
@@ -623,7 +623,7 @@ int ocrdma_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
 	unsigned long vm_page = vma->vm_pgoff << PAGE_SHIFT;
 	u64 unmapped_db = (u64) dev->nic_info.unmapped_db;
 	unsigned long len = (vma->vm_end - vma->vm_start);
-	int status = 0;
+	int status;
 	bool found;
 
 	if (vma->vm_start & (PAGE_SIZE - 1))
@@ -1285,7 +1285,7 @@ static int ocrdma_copy_qp_uresp(struct ocrdma_qp *qp,
 				struct ib_udata *udata, int dpp_offset,
 				int dpp_credit_lmt, int srq)
 {
-	int status = 0;
+	int status;
 	u64 usr_db;
 	struct ocrdma_create_qp_uresp uresp;
 	struct ocrdma_pd *pd = qp->pd;
@@ -1494,9 +1494,7 @@ int _ocrdma_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
 	 */
 	if (status < 0)
 		return status;
-	status = ocrdma_mbx_modify_qp(dev, qp, attr, attr_mask);
-
-	return status;
+	return ocrdma_mbx_modify_qp(dev, qp, attr, attr_mask);
 }
 
 int ocrdma_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
@@ -1949,7 +1947,7 @@ int ocrdma_modify_srq(struct ib_srq *ibsrq,
 		      enum ib_srq_attr_mask srq_attr_mask,
 		      struct ib_udata *udata)
 {
-	int status = 0;
+	int status;
 	struct ocrdma_srq *srq;
 
 	srq = get_ocrdma_srq(ibsrq);
@@ -2005,6 +2003,7 @@ static void ocrdma_build_ud_hdr(struct ocrdma_qp *qp,
 	else
 		ud_hdr->qkey = ud_wr(wr)->remote_qkey;
 	ud_hdr->rsvd_ahid = ah->id;
+	ud_hdr->hdr_type = ah->hdr_type;
 	if (ah->av->valid & OCRDMA_AV_VLAN_VALID)
 		hdr->cw |= (OCRDMA_FLAG_AH_VLAN_PR << OCRDMA_WQE_FLAGS_SHIFT);
 }
@@ -2717,9 +2716,11 @@ static bool ocrdma_poll_scqe(struct ocrdma_qp *qp, struct ocrdma_cqe *cqe,
 	return expand;
 }
 
-static int ocrdma_update_ud_rcqe(struct ib_wc *ibwc, struct ocrdma_cqe *cqe)
+static int ocrdma_update_ud_rcqe(struct ocrdma_dev *dev, struct ib_wc *ibwc,
+				 struct ocrdma_cqe *cqe)
 {
 	int status;
+	u16 hdr_type = 0;
 
 	status = (le32_to_cpu(cqe->flags_status_srcqpn) &
 		OCRDMA_CQE_UD_STATUS_MASK) >> OCRDMA_CQE_UD_STATUS_SHIFT;
@@ -2728,7 +2729,17 @@ static int ocrdma_update_ud_rcqe(struct ib_wc *ibwc, struct ocrdma_cqe *cqe)
 	ibwc->pkey_index = 0;
 	ibwc->wc_flags = IB_WC_GRH;
 	ibwc->byte_len = (le32_to_cpu(cqe->ud.rxlen_pkey) >>
-					OCRDMA_CQE_UD_XFER_LEN_SHIFT);
+			  OCRDMA_CQE_UD_XFER_LEN_SHIFT) &
+			  OCRDMA_CQE_UD_XFER_LEN_MASK;
+
+	if (ocrdma_is_udp_encap_supported(dev)) {
+		hdr_type = (le32_to_cpu(cqe->ud.rxlen_pkey) >>
+			    OCRDMA_CQE_UD_L3TYPE_SHIFT) &
+			    OCRDMA_CQE_UD_L3TYPE_MASK;
+		ibwc->wc_flags |= IB_WC_WITH_NETWORK_HDR_TYPE;
+		ibwc->network_hdr_type = hdr_type;
+	}
+
 	return status;
 }
 
@@ -2791,12 +2802,15 @@ static bool ocrdma_poll_err_rcqe(struct ocrdma_qp *qp, struct ocrdma_cqe *cqe,
 static void ocrdma_poll_success_rcqe(struct ocrdma_qp *qp,
 				     struct ocrdma_cqe *cqe, struct ib_wc *ibwc)
 {
+	struct ocrdma_dev *dev;
+
+	dev = get_ocrdma_dev(qp->ibqp.device);
 	ibwc->opcode = IB_WC_RECV;
 	ibwc->qp = &qp->ibqp;
 	ibwc->status = IB_WC_SUCCESS;
 
 	if (qp->qp_type == IB_QPT_UD || qp->qp_type == IB_QPT_GSI)
-		ocrdma_update_ud_rcqe(ibwc, cqe);
+		ocrdma_update_ud_rcqe(dev, ibwc, cqe);
 	else
 		ibwc->byte_len = le32_to_cpu(cqe->rq.rxlen);