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From: Vincent MAILHOL <mailhol.vincent@wanadoo.fr>
To: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: linux-can@vger.kernel.org, linux-kernel@vger.kernel.org,
	Max Staudt <max@enpas.org>,
	Oliver Hartkopp <socketcan@hartkopp.net>,
	netdev@vger.kernel.org
Subject: Re: [PATCH v4 4/7] can: Kconfig: add CONFIG_CAN_RX_OFFLOAD
Date: Sat, 4 Jun 2022 21:14:10 +0900	[thread overview]
Message-ID: <CAMZ6RqLRb_n+o2eFLEzn8Er7CyaZd8Q7B3=5e4Z5d0PJHKywAg@mail.gmail.com> (raw)
In-Reply-To: <20220604112227.nlyxulkxelgofruz@pengutronix.de>

On Sat. 4 June 2022 at 20:22, Marc Kleine-Budde <mkl@pengutronix.de> wrote:
> On 03.06.2022 19:28:45, Vincent Mailhol wrote:
> > Only a few drivers rely on the CAN rx offload framework (as of the
> > writing of this patch, only three: flexcan, ti_hecc and
> > mcp251xfd). Give the option to the user to deselect this features
> > during compilation.
> >
> > The drivers relying on CAN rx offload are in different sub
> > folders. All of these drivers get tagged with "select CAN_RX_OFFLOAD"
> > so that the option is automatically enabled whenever one of those
> > driver is chosen.
> >
> > Signed-off-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
> > ---
> >  drivers/net/can/Kconfig               | 16 ++++++++++++++++
> >  drivers/net/can/dev/Makefile          |  2 ++
> >  drivers/net/can/spi/mcp251xfd/Kconfig |  1 +
> >  3 files changed, 19 insertions(+)
> >
> > diff --git a/drivers/net/can/Kconfig b/drivers/net/can/Kconfig
> > index 8f3b97aea638..1f1d81da1c8c 100644
> > --- a/drivers/net/can/Kconfig
> > +++ b/drivers/net/can/Kconfig
> > @@ -102,6 +102,20 @@ config CAN_CALC_BITTIMING
> >
> >         If unsure, say Y.
> >
> > +config CAN_RX_OFFLOAD
> > +     bool "CAN RX offload"
> > +     default y
> > +     help
> > +       Framework to offload the controller's RX FIFO during one
> > +       interrupt. The CAN frames of the FIFO are read and put into a skb
> > +       queue during that interrupt and transmitted afterwards in a NAPI
> > +       context.
> > +
> > +       The additional features selected by this option will be added to the
> > +       can-dev module.
> > +
> > +       If unsure, say Y.
> > +
> >  config CAN_AT91
> >       tristate "Atmel AT91 onchip CAN controller"
> >       depends on (ARCH_AT91 || COMPILE_TEST) && HAS_IOMEM
> > @@ -113,6 +127,7 @@ config CAN_FLEXCAN
> >       tristate "Support for Freescale FLEXCAN based chips"
> >       depends on OF || COLDFIRE || COMPILE_TEST
> >       depends on HAS_IOMEM
> > +     select CAN_RX_OFFLOAD
> >       help
> >         Say Y here if you want to support for Freescale FlexCAN.
> >
> > @@ -162,6 +177,7 @@ config CAN_SUN4I
> >  config CAN_TI_HECC
> >       depends on ARM
> >       tristate "TI High End CAN Controller"
> > +     select CAN_RX_OFFLOAD
> >       help
> >         Driver for TI HECC (High End CAN Controller) module found on many
> >         TI devices. The device specifications are available from www.ti.com
> > diff --git a/drivers/net/can/dev/Makefile b/drivers/net/can/dev/Makefile
> > index b8a55b1d90cd..5081d8a3be57 100644
> > --- a/drivers/net/can/dev/Makefile
> > +++ b/drivers/net/can/dev/Makefile
> > @@ -11,3 +11,5 @@ can-dev-$(CONFIG_CAN_NETLINK) += netlink.o
> >  can-dev-$(CONFIG_CAN_NETLINK) += rx-offload.o
>              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>
> Do you want to remove this?

Absolutely. As you probably guessed, this is just a leftover.

> >
> >  can-dev-$(CONFIG_CAN_CALC_BITTIMING) += calc_bittiming.o
> > +
> > +can-dev-$(CONFIG_CAN_RX_OFFLOAD) += rx-offload.o
> > diff --git a/drivers/net/can/spi/mcp251xfd/Kconfig b/drivers/net/can/spi/mcp251xfd/Kconfig
> > index dd0fc0a54be1..877e4356010d 100644
> > --- a/drivers/net/can/spi/mcp251xfd/Kconfig
> > +++ b/drivers/net/can/spi/mcp251xfd/Kconfig
> > @@ -2,6 +2,7 @@
> >
> >  config CAN_MCP251XFD
> >       tristate "Microchip MCP251xFD SPI CAN controllers"
> > +     select CAN_RX_OFFLOAD
> >       select REGMAP
> >       select WANT_DEV_COREDUMP
> >       help
>
> I remember I've given you a list of drivers needing RX offload, I
> probably missed the m_can driver. Feel free to squash this patch:

Added it to v5.

This went through the cracks when testing. Thanks for catching this!

> --- a/drivers/net/can/dev/Makefile
> +++ b/drivers/net/can/dev/Makefile
> @@ -8,7 +8,6 @@ can-dev-$(CONFIG_CAN_NETLINK) += bittiming.o
>  can-dev-$(CONFIG_CAN_NETLINK) += dev.o
>  can-dev-$(CONFIG_CAN_NETLINK) += length.o
>  can-dev-$(CONFIG_CAN_NETLINK) += netlink.o
> -can-dev-$(CONFIG_CAN_NETLINK) += rx-offload.o
>
>  can-dev-$(CONFIG_CAN_CALC_BITTIMING) += calc_bittiming.o
>
> diff --git a/drivers/net/can/m_can/Kconfig b/drivers/net/can/m_can/Kconfig
> index 45ad1b3f0cd0..fc2afab36279 100644
> --- a/drivers/net/can/m_can/Kconfig
> +++ b/drivers/net/can/m_can/Kconfig
> @@ -1,6 +1,7 @@
>  # SPDX-License-Identifier: GPL-2.0-only
>  menuconfig CAN_M_CAN
>         tristate "Bosch M_CAN support"
> +       select CAN_RX_OFFLOAD
>         help
>           Say Y here if you want support for Bosch M_CAN controller framework.
>           This is common support for devices that embed the Bosch M_CAN IP.
>
> Marc
>
> --
> Pengutronix e.K.                 | Marc Kleine-Budde           |
> Embedded Linux                   | https://www.pengutronix.de  |
> Vertretung West/Dortmund         | Phone: +49-231-2826-924     |
> Amtsgericht Hildesheim, HRA 2686 | Fax:   +49-5121-206917-5555 |

  reply	other threads:[~2022-06-04 12:14 UTC|newest]

Thread overview: 119+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-05-13 14:23 [PATCH 0/2] can: drop tx skb if the device is in listen only mode Vincent Mailhol
2022-05-13 14:23 ` [PATCH 1/2] can: move can_dropped_invalid_skb from skb.h to dev.h Vincent Mailhol
2022-05-13 14:23 ` [PATCH 2/2] can: dev: drop tx skb if in listen only mode Vincent Mailhol
2022-05-13 14:42 ` [PATCH 0/2] can: drop tx skb if the device is " Marc Kleine-Budde
2022-05-13 15:20   ` Vincent MAILHOL
2022-05-13 15:36 ` [PATCH v2 " Vincent Mailhol
2022-05-13 15:36   ` [PATCH v2 1/2] can: skb:: move can_dropped_invalid_skb and can_skb_headroom_valid to skb.c Vincent Mailhol
2022-05-14  4:20     ` kernel test robot
2022-05-14  5:16       ` Vincent MAILHOL
2022-05-14 11:17         ` Max Staudt
2022-05-13 15:36   ` [PATCH v2 2/2] can: dev: drop tx skb if in listen only mode Vincent Mailhol
2022-05-13 17:40   ` [PATCH v2 0/2] can: drop tx skb if the device is " Max Staudt
2022-05-14  3:00     ` Vincent MAILHOL
2022-05-14 14:16 ` [PATCH v3 0/4] can: can_dropped_invalid_skb() and Kbuild changes Vincent Mailhol
2022-05-14 14:16   ` [PATCH v3 1/4] can: slcan: use can_dropped_invalid_skb() instead of manual check Vincent Mailhol
2022-05-16 20:40     ` Marc Kleine-Budde
2022-05-14 14:16   ` [PATCH v3 2/4] can: Kconfig: change CAN_DEV into a menuconfig Vincent Mailhol
2022-05-14 14:16   ` [PATCH v3 3/4] can: skb:: move can_dropped_invalid_skb and can_skb_headroom_valid to skb.c Vincent Mailhol
2022-05-15 19:17     ` Oliver Hartkopp
2022-05-17  1:50       ` Vincent MAILHOL
2022-05-17  4:12         ` Max Staudt
2022-05-17  6:08         ` Marc Kleine-Budde
2022-05-17  7:04           ` Vincent MAILHOL
2022-05-17 10:45             ` Marc Kleine-Budde
2022-05-17 11:51               ` Oliver Hartkopp
2022-05-17 12:14                 ` Max Staudt
2022-05-17 12:21                   ` Marc Kleine-Budde
2022-05-17 12:39                     ` Max Staudt
2022-05-17 13:35                       ` Oliver Hartkopp
2022-05-17 13:43                         ` Max Staudt
2022-05-17 14:23                           ` Marc Kleine-Budde
2022-05-17 14:35                           ` Oliver Hartkopp
2022-05-17 15:38                             ` Max Staudt
2022-05-17 15:50                               ` Oliver Hartkopp
2022-05-17 17:52                                 ` Max Staudt
2022-05-18 12:03                         ` Vincent MAILHOL
2022-05-18 12:12                           ` Device Drivers: (was: Re: [PATCH v3 3/4] can: skb:: move can_dropped_invalid_skb and can_skb_headroom_valid to skb.c) Marc Kleine-Budde
2022-05-18 12:45                             ` Oliver Hartkopp
2022-05-18 13:10                           ` [PATCH v3 3/4] can: skb:: move can_dropped_invalid_skb and can_skb_headroom_valid to skb.c Oliver Hartkopp
2022-05-18 13:28                             ` Marc Kleine-Budde
2022-05-18 14:07                               ` Vincent MAILHOL
2022-05-18 14:33                                 ` Oliver Hartkopp
2022-05-18 14:36                                   ` Marc Kleine-Budde
2022-05-18 14:38                                     ` Oliver Hartkopp
2022-05-18 14:55                                       ` Oliver Hartkopp
2022-05-18 15:38                                         ` Vincent MAILHOL
2022-05-18 15:48                                           ` Max Staudt
2022-05-18 16:01                                             ` Vincent MAILHOL
2022-05-14 14:16   ` [PATCH v3 4/4] can: dev: drop tx skb if in listen only mode Vincent Mailhol
2022-06-03 10:28 ` [PATCH v4 0/7] can: refactoring of can-dev module and of Kbuild Vincent Mailhol
2022-06-03 10:28   ` [PATCH v4 1/7] can: Kbuild: rename config symbol CAN_DEV into CAN_NETLINK Vincent Mailhol
2022-06-03 10:28   ` [PATCH v4 2/7] can: Kconfig: turn menu "CAN Device Drivers" into a menuconfig using CAN_DEV Vincent Mailhol
2022-06-04 11:27     ` Marc Kleine-Budde
2022-06-04 12:30       ` Vincent MAILHOL
2022-06-04 12:43         ` Marc Kleine-Budde
2022-06-04 13:46     ` Marc Kleine-Budde
2022-06-03 10:28   ` [PATCH v4 3/7] can: bittiming: move bittiming calculation functions to calc_bittiming.c Vincent Mailhol
2022-06-04 11:25     ` Marc Kleine-Budde
2022-06-04 12:21       ` Vincent MAILHOL
2022-06-04 12:41         ` Marc Kleine-Budde
2022-06-04 12:56           ` Vincent MAILHOL
2022-06-04 13:51             ` Marc Kleine-Budde
2022-06-03 10:28   ` [PATCH v4 4/7] can: Kconfig: add CONFIG_CAN_RX_OFFLOAD Vincent Mailhol
2022-06-04 11:22     ` Marc Kleine-Budde
2022-06-04 12:14       ` Vincent MAILHOL [this message]
2022-06-03 10:28   ` [PATCH v4 5/7] net: Kconfig: move the CAN device menu to the "Device Drivers" section Vincent Mailhol
2022-06-03 10:28   ` [PATCH v4 6/7] can: skb: move can_dropped_invalid_skb() and can_skb_headroom_valid() to skb.c Vincent Mailhol
2022-06-03 10:28   ` [PATCH v4 7/7] can: skb: drop tx skb if in listen only mode Vincent Mailhol
2022-06-04 11:46   ` [PATCH v4 0/7] can: refactoring of can-dev module and of Kbuild Marc Kleine-Budde
2022-06-04 13:05     ` Vincent MAILHOL
2022-06-04 13:55       ` Marc Kleine-Budde
2022-06-04 14:59         ` Vincent MAILHOL
2022-06-04 15:18           ` Marc Kleine-Budde
2022-06-04 16:32             ` Vincent MAILHOL
2022-06-05 10:39               ` Marc Kleine-Budde
2022-06-05 13:57                 ` Vincent MAILHOL
2022-06-05 18:08                   ` Marc Kleine-Budde
2022-06-04 16:29 ` [PATCH v5 " Vincent Mailhol
2022-06-04 16:29   ` [PATCH v5 1/7] can: Kbuild: rename config symbol CAN_DEV into CAN_NETLINK Vincent Mailhol
2022-06-04 16:29   ` [PATCH v5 2/7] can: Kconfig: turn menu "CAN Device Drivers" into a menuconfig using CAN_DEV Vincent Mailhol
2022-06-04 16:29   ` [PATCH v5 3/7] can: bittiming: move bittiming calculation functions to calc_bittiming.c Vincent Mailhol
2022-06-04 16:29   ` [PATCH v5 4/7] can: Kconfig: add CONFIG_CAN_RX_OFFLOAD Vincent Mailhol
2022-06-07  8:43     ` Geert Uytterhoeven
2022-06-07  9:27       ` Vincent MAILHOL
2022-06-07 16:22         ` Max Staudt
2022-06-07 22:06           ` Jakub Kicinski
2022-06-07 23:40             ` Vincent MAILHOL
2022-06-08  0:07               ` Jakub Kicinski
2022-06-07 23:43             ` Max Staudt
2022-06-08  0:14               ` Jakub Kicinski
2022-06-08  0:22                 ` Max Staudt
2022-06-08  1:38                 ` Vincent MAILHOL
2022-06-04 16:29   ` [PATCH v5 5/7] net: Kconfig: move the CAN device menu to the "Device Drivers" section Vincent Mailhol
2022-06-04 16:29   ` [PATCH v5 6/7] can: skb: move can_dropped_invalid_skb() and can_skb_headroom_valid() to skb.c Vincent Mailhol
2022-06-04 16:30   ` [PATCH v5 7/7] can: skb: drop tx skb if in listen only mode Vincent Mailhol
2022-06-05 17:23   ` [PATCH v5 0/7] can: refactoring of can-dev module and of Kbuild Max Staudt
2022-06-05 18:06     ` Marc Kleine-Budde
2022-06-05 20:46       ` Max Staudt
2022-06-06  0:24         ` Vincent MAILHOL
2022-06-06 19:24   ` Oliver Hartkopp
2022-06-07  2:49     ` Vincent MAILHOL
2022-06-07  7:13       ` Marc Kleine-Budde
2022-06-07  8:49         ` Vincent MAILHOL
2022-06-07 20:12       ` Oliver Hartkopp
2022-06-07 20:27         ` Marc Kleine-Budde
2022-06-07 20:51           ` Oliver Hartkopp
2022-06-07 23:59             ` Vincent MAILHOL
2022-06-08 20:10               ` Oliver Hartkopp
2022-06-10 14:30 ` [PATCH v6 " Vincent Mailhol
2022-06-10 14:30   ` [PATCH v6 1/7] can: Kconfig: rename config symbol CAN_DEV into CAN_NETLINK Vincent Mailhol
2022-06-10 14:30   ` [PATCH v6 2/7] can: Kconfig: turn menu "CAN Device Drivers" into a menuconfig using CAN_DEV Vincent Mailhol
2022-06-10 14:30   ` [PATCH v6 3/7] can: bittiming: move bittiming calculation functions to calc_bittiming.c Vincent Mailhol
2022-06-10 14:30   ` [PATCH v6 4/7] can: Kconfig: add CONFIG_CAN_RX_OFFLOAD Vincent Mailhol
2022-06-10 14:30   ` [PATCH v6 5/7] net: Kconfig: move the CAN device menu to the "Device Drivers" section Vincent Mailhol
2022-06-10 14:30   ` [PATCH v6 6/7] can: skb: move can_dropped_invalid_skb() and can_skb_headroom_valid() to skb.c Vincent Mailhol
2022-06-10 14:30   ` [PATCH v6 7/7] can: skb: drop tx skb if in listen only mode Vincent Mailhol
2022-06-10 21:38   ` [PATCH v6 0/7] can: refactoring of can-dev module and of Kbuild Oliver Hartkopp
2022-06-10 22:43   ` Max Staudt
2022-06-11 15:17   ` Marc Kleine-Budde

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