[PATCH for-next 4/4] RDMA/ bnxt_re: Fix access flags for MR and QP modify

[Selvin Xavier <selvin.xavier@broadcom.com>]

From: Hongguang Gao <hongguang.gao@broadcom.com>

Access flag definition in MR and QP is different
in FW. Currently both reg/bind MR and modify/query QP uses
the same flags. Add a different function to map
the QP access flags for newer adapters.

Signed-off-by: Hongguang Gao <hongguang.gao@broadcom.com>
Reviewed-by: Damodharam Ammepalli <damodharam.ammepalli@broadcom.com>
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
---
 drivers/infiniband/hw/bnxt_re/ib_verbs.c | 59 +++++++++++++++++++++++++++-----
 1 file changed, 50 insertions(+), 9 deletions(-)

diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
index 2a21a90..5008c28 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
@@ -94,9 +94,9 @@ static int __from_ib_access_flags(int iflags)
 	return qflags;
 };
 
-static enum ib_access_flags __to_ib_access_flags(int qflags)
+static int __to_ib_access_flags(int qflags)
 {
-	enum ib_access_flags iflags = 0;
+	int iflags = 0;
 
 	if (qflags & BNXT_QPLIB_ACCESS_LOCAL_WRITE)
 		iflags |= IB_ACCESS_LOCAL_WRITE;
@@ -113,7 +113,49 @@ static enum ib_access_flags __to_ib_access_flags(int qflags)
 	if (qflags & BNXT_QPLIB_ACCESS_ON_DEMAND)
 		iflags |= IB_ACCESS_ON_DEMAND;
 	return iflags;
-};
+}
+
+static u8 __qp_access_flags_from_ib(struct bnxt_qplib_chip_ctx *cctx, int iflags)
+{
+	u8 qflags = 0;
+
+	if (!bnxt_qplib_is_chip_gen_p5_p7(cctx))
+		/* For Wh+ */
+		return (u8)__from_ib_access_flags(iflags);
+
+	/* For P5, P7 and later chips */
+	if (iflags & IB_ACCESS_LOCAL_WRITE)
+		qflags |= CMDQ_MODIFY_QP_ACCESS_LOCAL_WRITE;
+	if (iflags & IB_ACCESS_REMOTE_WRITE)
+		qflags |= CMDQ_MODIFY_QP_ACCESS_REMOTE_WRITE;
+	if (iflags & IB_ACCESS_REMOTE_READ)
+		qflags |= CMDQ_MODIFY_QP_ACCESS_REMOTE_READ;
+	if (iflags & IB_ACCESS_REMOTE_ATOMIC)
+		qflags |= CMDQ_MODIFY_QP_ACCESS_REMOTE_ATOMIC;
+
+	return qflags;
+}
+
+static int __qp_access_flags_to_ib(struct bnxt_qplib_chip_ctx *cctx, u8 qflags)
+{
+	int iflags = 0;
+
+	if (!bnxt_qplib_is_chip_gen_p5_p7(cctx))
+		/* For Wh+ */
+		return __to_ib_access_flags(qflags);
+
+	/* For P5, P7 and later chips */
+	if (qflags & CMDQ_MODIFY_QP_ACCESS_LOCAL_WRITE)
+		iflags |= IB_ACCESS_LOCAL_WRITE;
+	if (qflags & CMDQ_MODIFY_QP_ACCESS_REMOTE_WRITE)
+		iflags |= IB_ACCESS_REMOTE_WRITE;
+	if (qflags & CMDQ_MODIFY_QP_ACCESS_REMOTE_READ)
+		iflags |= IB_ACCESS_REMOTE_READ;
+	if (qflags & CMDQ_MODIFY_QP_ACCESS_REMOTE_ATOMIC)
+		iflags |= IB_ACCESS_REMOTE_ATOMIC;
+
+	return iflags;
+}
 
 static void bnxt_re_check_and_set_relaxed_ordering(struct bnxt_re_dev *rdev,
 						   struct bnxt_qplib_mrw *qplib_mr)
@@ -2053,12 +2095,10 @@ int bnxt_re_modify_qp(struct ib_qp *ib_qp, struct ib_qp_attr *qp_attr,
 	if (qp_attr_mask & IB_QP_ACCESS_FLAGS) {
 		qp->qplib_qp.modify_flags |= CMDQ_MODIFY_QP_MODIFY_MASK_ACCESS;
 		qp->qplib_qp.access =
-			__from_ib_access_flags(qp_attr->qp_access_flags);
+			__qp_access_flags_from_ib(qp->qplib_qp.cctx,
+						  qp_attr->qp_access_flags);
 		/* LOCAL_WRITE access must be set to allow RC receive */
-		qp->qplib_qp.access |= BNXT_QPLIB_ACCESS_LOCAL_WRITE;
-		/* Temp: Set all params on QP as of now */
-		qp->qplib_qp.access |= CMDQ_MODIFY_QP_ACCESS_REMOTE_WRITE;
-		qp->qplib_qp.access |= CMDQ_MODIFY_QP_ACCESS_REMOTE_READ;
+		qp->qplib_qp.access |= CMDQ_MODIFY_QP_ACCESS_LOCAL_WRITE;
 	}
 	if (qp_attr_mask & IB_QP_PKEY_INDEX) {
 		qp->qplib_qp.modify_flags |= CMDQ_MODIFY_QP_MODIFY_MASK_PKEY;
@@ -2263,7 +2303,8 @@ int bnxt_re_query_qp(struct ib_qp *ib_qp, struct ib_qp_attr *qp_attr,
 	qp_attr->qp_state = __to_ib_qp_state(qplib_qp->state);
 	qp_attr->cur_qp_state = __to_ib_qp_state(qplib_qp->cur_qp_state);
 	qp_attr->en_sqd_async_notify = qplib_qp->en_sqd_async_notify ? 1 : 0;
-	qp_attr->qp_access_flags = __to_ib_access_flags(qplib_qp->access);
+	qp_attr->qp_access_flags = __qp_access_flags_to_ib(qplib_qp->cctx,
+							   qplib_qp->access);
 	qp_attr->pkey_index = qplib_qp->pkey_index;
 	qp_attr->qkey = qplib_qp->qkey;
 	qp_attr->ah_attr.type = RDMA_AH_ATTR_TYPE_ROCE;
-- 
2.5.5