From: Andrejs Cainikovs <Andrejs.Cainikovs@netmodule.com>
To: Wolfgang Grandegger <wg@grandegger.com>,
Marc Kleine-Budde <mkl@pengutronix.de>,
"David S . Miller" <davem@davemloft.net>,
"linux-can@vger.kernel.org" <linux-can@vger.kernel.org>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Cc: Patrick Zysset <Patrick.Zysset@netmodule.com>
Subject: [PATCH 0/2] D_CAN RX buffer size improvements
Date: Fri, 8 Feb 2019 13:31:00 +0000 [thread overview]
Message-ID: <20190208132954.28166-1-andrejs.cainikovs@netmodule.com> (raw)
Re-sending entire patchset due to missed cover letter, sorry.
This patchset introduces support for 64 D_CAN message objects with an option of
unequal split between RX/TX.
The rationale behind this is that there are lots of frame loss on higher bus
speeds. Below are test results from my custom Sitara AM3352 based board:
Sender: timeout 15m cangen can0 -g 0 -i x
Target: candump can0,0~0,#FFFFFFFF -td -c -d -e
* Without patches:
- 15 minute RX test, 500kbps
- 16 RX / 16 TX message objects
- 77 received frames lost out of 4649415
* With patches applied:
- 15 hours RX test, 500kbps
- 56 RX / 8 TX message objects
- 41 received frames lost out of 279303376
Please note, I do not have ability to test pure C_CAN, so it is left untested.
---
Andrejs Cainikovs (2):
can: c_can: support 64 message objects for D_CAN
can: c_can: configurable amount of D_CAN RX objects
drivers/net/can/c_can/Kconfig | 20 ++++++++++
drivers/net/can/c_can/c_can.c | 93 +++++++++++++++++++++++++++----------------
drivers/net/can/c_can/c_can.h | 20 +++++++---
3 files changed, 94 insertions(+), 39 deletions(-)
---
2.11.0
next reply other threads:[~2019-02-08 13:31 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-08 13:31 Andrejs Cainikovs [this message]
2019-02-08 13:31 ` [PATCH 1/2] can: c_can: support 64 message objects for D_CAN Andrejs Cainikovs
2019-02-08 13:31 ` [PATCH 2/2] can: c_can: configurable amount of D_CAN RX objects Andrejs Cainikovs
2021-01-13 18:43 ` [PATCH 0/2] D_CAN RX buffer size improvements Ezequiel Garcia
2021-08-06 10:16 ` Andrejs Cainikovs
2021-08-06 10:36 ` Marc Kleine-Budde
2021-08-06 13:53 ` Ezequiel Garcia
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=20190208132954.28166-1-andrejs.cainikovs@netmodule.com \
--to=andrejs.cainikovs@netmodule.com \
--cc=Patrick.Zysset@netmodule.com \
--cc=davem@davemloft.net \
--cc=linux-can@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mkl@pengutronix.de \
--cc=netdev@vger.kernel.org \
--cc=wg@grandegger.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.