netdev - Re: [PATCH v4 net-next 3/5] net: ena: Add an option to configure large LLQ headers

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Date:   Thu, 9 Mar 2023 17:28:31 +0100
From:   Simon Horman <simon.horman@...igine.com>
To:     Shay Agroskin <shayagr@...zon.com>
Cc:     David Miller <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        David Arinzon <darinzon@...zon.com>,
        "Woodhouse, David" <dwmw@...zon.com>,
        "Machulsky, Zorik" <zorik@...zon.com>,
        "Matushevsky, Alexander" <matua@...zon.com>,
        Saeed Bshara <saeedb@...zon.com>,
        "Wilson, Matt" <msw@...zon.com>,
        "Liguori, Anthony" <aliguori@...zon.com>,
        "Bshara, Nafea" <nafea@...zon.com>,
        "Belgazal, Netanel" <netanel@...zon.com>,
        "Saidi, Ali" <alisaidi@...zon.com>,
        "Herrenschmidt, Benjamin" <benh@...zon.com>,
        "Kiyanovski, Arthur" <akiyano@...zon.com>,
        "Dagan, Noam" <ndagan@...zon.com>,
        "Itzko, Shahar" <itzko@...zon.com>,
        "Abboud, Osama" <osamaabb@...zon.com>
Subject: Re: [PATCH v4 net-next 3/5] net: ena: Add an option to configure
 large LLQ headers

On Thu, Mar 09, 2023 at 03:13:17PM +0200, Shay Agroskin wrote:
> From: David Arinzon <darinzon@...zon.com>
> 
> Allow configuring the device with large LLQ headers. The Low Latency
> Queue (LLQ) allows the driver to write the first N bytes of the packet,
> along with the rest of the TX descriptors directly into device (N can be
> either 96 or 224 for large LLQ headers configuration).
> 
> Having L4 TCP/UDP headers contained in the first 96 bytes of the packet
> is required to get maximum performance from the device.
> 
> Signed-off-by: David Arinzon <darinzon@...zon.com>
> Signed-off-by: Shay Agroskin <shayagr@...zon.com>

Reviewed-by: Simon Horman <simon.horman@...igine.com>