[PATCH for-next 2/2] RDMA/bnxt_re: update ABI to pass wqe-mode to user space

[Devesh Sharma <devesh.sharma@broadcom.com>]

Changing ucontext ABI response structure to pass wqe_mode
to user library.
A flag in comp_mask has been set to indicate presence of
wqe_mode.

Signed-off-by: Devesh Sharma <devesh.sharma@broadcom.com>
---
 drivers/infiniband/hw/bnxt_re/ib_verbs.c | 3 +++
 include/uapi/rdma/bnxt_re-abi.h          | 5 ++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
index e1dbdf0..153708d 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
@@ -3935,6 +3935,9 @@ int bnxt_re_alloc_ucontext(struct ib_ucontext *ctx, struct ib_udata *udata)
 	resp.max_cqd = dev_attr->max_cq_wqes;
 	resp.rsvd    = 0;
 
+	resp.comp_mask |= BNXT_RE_UCNTX_CMASK_HAVE_MODE;
+	resp.mode = rdev->chip_ctx->modes.wqe_mode;
+
 	rc = ib_copy_to_udata(udata, &resp, min(udata->outlen, sizeof(resp)));
 	if (rc) {
 		ibdev_err(ibdev, "Failed to copy user context");
diff --git a/include/uapi/rdma/bnxt_re-abi.h b/include/uapi/rdma/bnxt_re-abi.h
index dc52e3c..52205ed 100644
--- a/include/uapi/rdma/bnxt_re-abi.h
+++ b/include/uapi/rdma/bnxt_re-abi.h
@@ -49,7 +49,8 @@
 #define BNXT_RE_CHIP_ID0_CHIP_MET_SFT		0x18
 
 enum {
-	BNXT_RE_UCNTX_CMASK_HAVE_CCTX = 0x1ULL
+	BNXT_RE_UCNTX_CMASK_HAVE_CCTX = 0x1ULL,
+	BNXT_RE_UCNTX_CMASK_HAVE_MODE = 0x02ULL
 };
 
 struct bnxt_re_uctx_resp {
@@ -62,6 +63,8 @@ struct bnxt_re_uctx_resp {
 	__aligned_u64 comp_mask;
 	__u32 chip_id0;
 	__u32 chip_id1;
+	__u32 mode;
+	__u32 rsvd1; /* padding */
 };
 
 /*
-- 
1.8.3.1