RDMA/bnxt_re: Enable pacing support for the user apps

Report the pacing capability to the user applications.

Link: https://lore.kernel.org/r/1689742977-9128-5-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Chandramohan Akula <chandramohan.akula@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
index abef0b8..86b71c7 100644 (file)
--- 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 (file)
--- 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 {