public inbox for linux-rdma@vger.kernel.org
 help / color / mirror / Atom feed
From: Selvin Xavier <selvin.xavier@broadcom.com>
To: jgg@ziepe.ca, leon@kernel.org
Cc: linux-rdma@vger.kernel.org, andrew.gospodarek@broadcom.com,
	michael.chan@broadcom.com,
	Chandramohan Akula <chandramohan.akula@broadcom.com>,
	Selvin Xavier <selvin.xavier@broadcom.com>
Subject: [PATCH for-next v2 4/7] RDMA/bnxt_re: Enable pacing support for the user apps
Date: Sun, 16 Jul 2023 22:53:11 -0700	[thread overview]
Message-ID: <1689573194-27687-5-git-send-email-selvin.xavier@broadcom.com> (raw)
In-Reply-To: <1689573194-27687-1-git-send-email-selvin.xavier@broadcom.com>

[-- Attachment #1: Type: text/plain, Size: 1374 bytes --]

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 --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 {
-- 
2.5.5


[-- Attachment #2: S/MIME Cryptographic Signature --]
[-- Type: application/pkcs7-signature, Size: 4224 bytes --]

  parent reply	other threads:[~2023-07-17  6:08 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-07-17  5:53 [PATCH for-next v2 0/7]RDMA/bnxt_re: Doorbell Drop Prevention Selvin Xavier
2023-07-17  5:53 ` [PATCH for-next v2 1/7] bnxt_en: Update HW interface headers Selvin Xavier
2023-07-17  5:53 ` [PATCH for-next v2 2/7] bnxt_en: Share the bar0 address with the RoCE driver Selvin Xavier
2023-07-17  5:53 ` [PATCH for-next v2 3/7] RDMA/bnxt_re: Initialize Doorbell pacing feature Selvin Xavier
2023-07-17  5:53 ` Selvin Xavier [this message]
2023-07-17  5:53 ` [PATCH for-next v2 5/7] RDMA/bnxt_re: Update alloc_page uapi for pacing Selvin Xavier
2023-07-18 23:16   ` kernel test robot
2023-07-17  5:53 ` [PATCH for-next v2 6/7] RDMA/bnxt_re: Implement doorbell pacing algorithm Selvin Xavier
2023-07-17  5:53 ` [PATCH for-next v2 7/7] RDMA/bnxt_re: Add a new uapi for driver notification Selvin Xavier
2023-07-18  9:40 ` [PATCH for-next v2 0/7]RDMA/bnxt_re: Doorbell Drop Prevention Leon Romanovsky

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1689573194-27687-5-git-send-email-selvin.xavier@broadcom.com \
    --to=selvin.xavier@broadcom.com \
    --cc=andrew.gospodarek@broadcom.com \
    --cc=chandramohan.akula@broadcom.com \
    --cc=jgg@ziepe.ca \
    --cc=leon@kernel.org \
    --cc=linux-rdma@vger.kernel.org \
    --cc=michael.chan@broadcom.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox