diff mbox series

[for-next,v2,4/7] RDMA/bnxt_re: Enable pacing support for the user apps

Message ID 1689573194-27687-5-git-send-email-selvin.xavier@broadcom.com (mailing list archive)
State Superseded
Headers show
Series RDMA/bnxt_re: Doorbell Drop Prevention | expand

Commit Message

Selvin Xavier July 17, 2023, 5:53 a.m. UTC 
From: Chandramohan Akula <chandramohan.akula@broadcom.com>

Report the pacing capability to the user applications.

Signed-off-by: Chandramohan Akula <chandramohan.akula@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
---
 drivers/infiniband/hw/bnxt_re/ib_verbs.c | 2 ++
 include/uapi/rdma/bnxt_re-abi.h          | 1 +
 2 files changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
index abef0b8..86b71c7 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
@@ -4075,6 +4075,8 @@  int bnxt_re_alloc_ucontext(struct ib_ucontext *ctx, struct ib_udata *udata)
 		goto cfail;
 	}
 	uctx->shpage_mmap = &entry->rdma_entry;
+	if (rdev->pacing.dbr_pacing)
+		resp.comp_mask |= BNXT_RE_UCNTX_CMASK_DBR_PACING_ENABLED;
 
 	rc = ib_copy_to_udata(udata, &resp, min(udata->outlen, sizeof(resp)));
 	if (rc) {
diff --git a/include/uapi/rdma/bnxt_re-abi.h b/include/uapi/rdma/bnxt_re-abi.h
index 8a2a1d4..060bf1d 100644
--- a/include/uapi/rdma/bnxt_re-abi.h
+++ b/include/uapi/rdma/bnxt_re-abi.h
@@ -53,6 +53,7 @@  enum {
 	BNXT_RE_UCNTX_CMASK_HAVE_CCTX = 0x1ULL,
 	BNXT_RE_UCNTX_CMASK_HAVE_MODE = 0x02ULL,
 	BNXT_RE_UCNTX_CMASK_WC_DPI_ENABLED = 0x04ULL,
+	BNXT_RE_UCNTX_CMASK_DBR_PACING_ENABLED = 0x08ULL,
 };
 
 enum bnxt_re_wqe_mode {