netdev - Re: [PATCH V1 net-next 6/8] net: ena: enable support of rss hash key and function changes

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Message-ID: <53596F13-16F7-4C82-A5BC-5F5DB22C36A4@amazon.com>
Date:   Fri, 10 Jul 2020 19:53:46 +0000
From:   "Machulsky, Zorik" <zorik@...zon.com>
To:     Jakub Kicinski <kuba@...nel.org>,
        "Kiyanovski, Arthur" <akiyano@...zon.com>
CC:     "davem@...emloft.net" <davem@...emloft.net>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "Woodhouse, David" <dwmw@...zon.co.uk>,
        "Matushevsky, Alexander" <matua@...zon.com>,
        "Bshara, Saeed" <saeedb@...zon.com>,
        "Wilson, Matt" <msw@...zon.com>,
        "Liguori, Anthony" <aliguori@...zon.com>,
        "Bshara, Nafea" <nafea@...zon.com>,
        "Tzalik, Guy" <gtzalik@...zon.com>,
        "Belgazal, Netanel" <netanel@...zon.com>,
        "Saidi, Ali" <alisaidi@...zon.com>,
        "Herrenschmidt, Benjamin" <benh@...zon.com>,
        "Dagan, Noam" <ndagan@...zon.com>,
        "Agroskin, Shay" <shayagr@...zon.com>,
        "Jubran, Samih" <sameehj@...zon.com>
Subject: Re: [PATCH V1 net-next 6/8] net: ena: enable support of rss hash key and
 function changes



On 7/9/20, 1:24 PM, "Jakub Kicinski" <kuba@...nel.org> wrote:

    On Thu, 9 Jul 2020 22:05:01 +0300 akiyano@...zon.com wrote:
    > From: Arthur Kiyanovski <akiyano@...zon.com>
    >
    > Add the rss_configurable_function_key bit to driver_supported_feature.
    >
    > This bit tells the device that the driver in question supports the
    > retrieving and updating of RSS function and hash key, and therefore
    > the device should allow RSS function and key manipulation.
    >
    > Signed-off-by: Arthur Kiyanovski <akiyano@...zon.com>

    Is this a fix of the previous patches? looks strange to just start
    advertising a feature bit but not add any code..

The previous related commits were merged already:
0af3c4e2eab8 net: ena: changes to RSS hash key allocation
c1bd17e51c71 net: ena: change default RSS hash function to Toeplitz
f66c2ea3b18a net: ena: allow setting the hash function without changing the key
e9a1de378dd4 net: ena: fix error returning in ena_com_get_hash_function()
80f8443fcdaa net: ena: avoid unnecessary admin command when RSS function set fails
6a4f7dc82d1e net: ena: rss: do not allocate key when not supported
0d1c3de7b8c7 net: ena: fix incorrect default RSS key

This commit was not included by mistake, so we are adding it now.