From: Jerin Jacob <jerinjacobk@gmail.com>
To: Nithin Dabilpuram <ndabilpuram@marvell.com>
Cc: Jerin Jacob <jerinj@marvell.com>,
Kiran Kumar K <kirankumark@marvell.com>,
Sunil Kumar Kori <skori@marvell.com>,
Satha Rao <skoteshwar@marvell.com>, dpdk-dev <dev@dpdk.org>,
Harman Kalra <hkalra@marvell.com>
Subject: Re: [PATCH 5/8] common/cnxk: always use single qint with NIX
Date: Wed, 19 Jan 2022 21:58:44 +0530 [thread overview]
Message-ID: <CALBAE1O36c=Mmi0095khx6sq3JvsH2Nr2ThKwzicDB15=+VJeA@mail.gmail.com> (raw)
In-Reply-To: <20211209091342.27017-5-ndabilpuram@marvell.com>
On Thu, Dec 9, 2021 at 2:44 PM Nithin Dabilpuram
<ndabilpuram@marvell.com> wrote:
>
> From: Harman Kalra <hkalra@marvell.com>
>
> An errata exists whereby, in certain cases NIX may use an
> incorrect QINT_IDX for SQ interrupts. As a result, the
> interrupt may not be delivered to software, or may not be
> associated with the correct SQ.
> When NIX uses an incorrect QINT_IDX :
> 1. NIX_LF_QINT(0..63)_CNT[COUNT] will be incremented for
> incorrect QINT.
> 2. NIX_LF_QINT(0..63)_INT[INTR] will be set for incorrect
> QINT.
>
> Signed-off-by: Harman Kalra <hkalra@marvell.com>
Changed the subject to;
common/cnxk: always use single interrupt ID with NIX
Acked-by: Jerin Jacob <jerinj@marvell.com>
Applied to dpdk-next-net-mrvl/for-next-net. Thanks
> ---
> drivers/common/cnxk/roc_nix_queue.c | 13 ++++++++++---
> 1 file changed, 10 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/common/cnxk/roc_nix_queue.c b/drivers/common/cnxk/roc_nix_queue.c
> index c8c8401..4455fc1 100644
> --- a/drivers/common/cnxk/roc_nix_queue.c
> +++ b/drivers/common/cnxk/roc_nix_queue.c
> @@ -680,7 +680,11 @@ sq_cn9k_init(struct nix *nix, struct roc_nix_sq *sq, uint32_t rr_quantum,
> aq->sq.sq_int_ena |= BIT(NIX_SQINT_MNQ_ERR);
>
> /* Many to one reduction */
> - aq->sq.qint_idx = sq->qid % nix->qints;
> + /* Assigning QINT 0 to all the SQs, an errata exists where NIXTX can
> + * send incorrect QINT_IDX when reporting queue interrupt (QINT). This
> + * might result in software missing the interrupt.
> + */
> + aq->sq.qint_idx = 0;
> }
>
> static int
> @@ -779,8 +783,11 @@ sq_init(struct nix *nix, struct roc_nix_sq *sq, uint32_t rr_quantum,
> aq->sq.sq_int_ena |= BIT(NIX_SQINT_SEND_ERR);
> aq->sq.sq_int_ena |= BIT(NIX_SQINT_MNQ_ERR);
>
> - /* Many to one reduction */
> - aq->sq.qint_idx = sq->qid % nix->qints;
> + /* Assigning QINT 0 to all the SQs, an errata exists where NIXTX can
> + * send incorrect QINT_IDX when reporting queue interrupt (QINT). This
> + * might result in software missing the interrupt.
> + */
> + aq->sq.qint_idx = 0;
> }
>
> static int
> --
> 2.8.4
>
next prev parent reply other threads:[~2022-01-19 16:29 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-09 9:13 [PATCH 1/8] common/cnxk: fix shift offset for tl3 length disable Nithin Dabilpuram
2021-12-09 9:13 ` [PATCH 2/8] common/cnxk: use for loop in shaper profiles cleanup Nithin Dabilpuram
2022-01-19 16:20 ` Jerin Jacob
2021-12-09 9:13 ` [PATCH 3/8] common/cnxk: change order of frag sizes and infos Nithin Dabilpuram
2022-01-19 16:25 ` Jerin Jacob
2022-01-21 10:03 ` Ferruh Yigit
2021-12-09 9:13 ` [PATCH 4/8] common/cnxk: reset stale values on error debug registers Nithin Dabilpuram
2022-01-19 16:25 ` Jerin Jacob
2021-12-09 9:13 ` [PATCH 5/8] common/cnxk: always use single qint with NIX Nithin Dabilpuram
2022-01-19 16:28 ` Jerin Jacob [this message]
2021-12-09 9:13 ` [PATCH 6/8] common/cnxk: handle issues from static analysis Nithin Dabilpuram
2022-01-19 16:44 ` Jerin Jacob
2022-01-21 10:05 ` Ferruh Yigit
2021-12-09 9:13 ` [PATCH 7/8] net/cnxk: improve inbound inline error handling for cn9k Nithin Dabilpuram
2022-01-21 10:06 ` Ferruh Yigit
2021-12-09 9:13 ` [PATCH 8/8] net/cnxk: synchronize inline session create and destroy Nithin Dabilpuram
2022-01-19 16:45 ` Jerin Jacob
2022-01-19 16:15 ` [PATCH 1/8] common/cnxk: fix shift offset for tl3 length disable Jerin Jacob
2022-01-21 10:08 ` Ferruh Yigit
2022-01-21 10:24 ` Nithin Kumar Dabilpuram
2022-01-21 12:04 ` [PATCH v2 01/10] common/cnxk: fix shift offset for TL3 " Nithin Dabilpuram
2022-01-21 12:04 ` [PATCH v2 02/10] common/cnxk: use for loop in shaper profiles cleanup Nithin Dabilpuram
2022-01-21 12:04 ` [PATCH v2 03/10] common/cnxk: fix byte order of frag sizes and infos Nithin Dabilpuram
2022-01-21 12:04 ` [PATCH v2 04/10] common/cnxk: reset stale values on error debug registers Nithin Dabilpuram
2022-01-21 12:04 ` [PATCH v2 05/10] common/cnxk: always use single interrupt ID with NIX Nithin Dabilpuram
2022-01-21 17:16 ` Kevin Traynor
2022-01-23 7:45 ` Jerin Jacob
2022-01-21 12:04 ` [PATCH v2 06/10] common/cnxk: fix null pointer dereferences Nithin Dabilpuram
2022-01-21 12:04 ` [PATCH v2 07/10] common/cnxk: fix uninitialized variable issues Nithin Dabilpuram
2022-01-21 12:04 ` [PATCH v2 08/10] net/cnxk: improve inbound inline error handling for cn9k Nithin Dabilpuram
2022-01-21 12:04 ` [PATCH v2 09/10] common/cnxk: set UDP ports for IPsec UDP encapsulation Nithin Dabilpuram
2022-01-21 12:04 ` [PATCH v2 10/10] net/cnxk: synchronize inline session create and destroy Nithin Dabilpuram
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='CALBAE1O36c=Mmi0095khx6sq3JvsH2Nr2ThKwzicDB15=+VJeA@mail.gmail.com' \
--to=jerinjacobk@gmail.com \
--cc=dev@dpdk.org \
--cc=hkalra@marvell.com \
--cc=jerinj@marvell.com \
--cc=kirankumark@marvell.com \
--cc=ndabilpuram@marvell.com \
--cc=skori@marvell.com \
--cc=skoteshwar@marvell.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;
as well as URLs for NNTP newsgroup(s).