RDMA/cxgb3: Fix up MW access rights

- MWs don't have local read/write permissions.
- Set the MW_BIND enabled bit if a MR has MW_BIND access.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

drivers/infiniband/hw/cxgb3/cxio_hal.c

@@ -725,7 +725,7 @@ static int __cxio_tpt_op(struct cxio_rdev *rdev_p, u32 reset_tpt_entry,
 				V_TPT_STAG_TYPE(type) | V_TPT_PDID(pdid));
 		BUG_ON(page_size >= 28);
 		tpt.flags_pagesize_qpid = cpu_to_be32(V_TPT_PERM(perm) |
-				F_TPT_MW_BIND_ENABLE |
+			((perm & TPT_MW_BIND) ? F_TPT_MW_BIND_ENABLE : 0) |
 			V_TPT_ADDR_TYPE((zbva ? TPT_ZBTO : TPT_VATO)) |
 			V_TPT_PAGE_SIZE(page_size));
 		tpt.rsvd_pbl_addr = reset_tpt_entry ? 0 :

drivers/infiniband/hw/cxgb3/iwch_provider.h

@@ -293,9 +293,16 @@ static inline u32 iwch_ib_to_tpt_access(int acc)
 	return (acc & IB_ACCESS_REMOTE_WRITE ? TPT_REMOTE_WRITE : 0) |
 	       (acc & IB_ACCESS_REMOTE_READ ? TPT_REMOTE_READ : 0) |
 	       (acc & IB_ACCESS_LOCAL_WRITE ? TPT_LOCAL_WRITE : 0) |
+	       (acc & IB_ACCESS_MW_BIND ? TPT_MW_BIND : 0) |
 	       TPT_LOCAL_READ;
 }
 
+static inline u32 iwch_ib_to_tpt_bind_access(int acc)
+{
+	return (acc & IB_ACCESS_REMOTE_WRITE ? TPT_REMOTE_WRITE : 0) |
+	       (acc & IB_ACCESS_REMOTE_READ ? TPT_REMOTE_READ : 0);
+}
+
 enum iwch_mmid_state {
 	IWCH_STAG_STATE_VALID,
 	IWCH_STAG_STATE_INVALID

drivers/infiniband/hw/cxgb3/iwch_qp.c

@@ -565,7 +565,7 @@ int iwch_bind_mw(struct ib_qp *qp,
 	wqe->bind.type = TPT_VATO;
 
 	/* TBD: check perms */
-	wqe->bind.perms = iwch_ib_to_tpt_access(mw_bind->mw_access_flags);
+	wqe->bind.perms = iwch_ib_to_tpt_bind_access(mw_bind->mw_access_flags);
 	wqe->bind.mr_stag = cpu_to_be32(mw_bind->mr->lkey);
 	wqe->bind.mw_stag = cpu_to_be32(mw->rkey);
 	wqe->bind.mw_len = cpu_to_be32(mw_bind->length);