Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18;
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII;
 format=flowed
Content-Transfer-Encoding: 7bit
Date:   Fri, 18 Mar 2022 21:55:10 +0100
From:   Michael Walle <michael@walle.cc>
To:     Horatiu Vultur <horatiu.vultur@microchip.com>
Cc:     linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
        davem@davemloft.net, kuba@kernel.org, UNGLinuxDriver@microchip.com
Subject: Re: [PATCH net-next v2 0/4] net: lan966x: Add support for FDMA
In-Reply-To: <20220318204750.1864134-1-horatiu.vultur@microchip.com>
References: <20220318204750.1864134-1-horatiu.vultur@microchip.com>
User-Agent: Roundcube Webmail/1.4.13
Message-ID: <c8cfb46356ab32421fbe7c0cdf4168a0@walle.cc>
Precedence: bulk

Am 2022-03-18 21:47, schrieb Horatiu Vultur:
> Currently when injecting or extracting a frame from CPU, the frame
> is given to the HW each word at a time. There is another way to
> inject/extract frames from CPU using FDMA(Frame Direct Memory Access).
> In this way the entire frame is given to the HW. This improves both
> RX and TX bitrate.
> 
> v1->v2:
> - fix typo in commit message in last patch
> - remove first patch as the changes are already there
> - make sure that there is space in skb to put the FCS
> - move skb_tx_timestamp closer to the handover of the frame to the HW
> 
> Horatiu Vultur (4):
>   net: lan966x: Add registers that are used for FDMA.
>   net: lan966x: Expose functions that are needed by FDMA
>   net: lan966x: Add FDMA functionality
>   net: lan966x: Update FDMA to change MTU.
> 
>  .../net/ethernet/microchip/lan966x/Makefile   |   2 +-
>  .../ethernet/microchip/lan966x/lan966x_fdma.c | 775 ++++++++++++++++++
>  .../ethernet/microchip/lan966x/lan966x_main.c |  44 +-
>  .../ethernet/microchip/lan966x/lan966x_main.h | 120 +++
>  .../ethernet/microchip/lan966x/lan966x_port.c |   3 +
>  .../ethernet/microchip/lan966x/lan966x_regs.h | 106 +++
>  6 files changed, 1038 insertions(+), 12 deletions(-)
>  create mode 100644 
> drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c

Tested-by: Michael Walle <michael@walle.cc>

Thanks,
-michael