netdev - Re: [PATCH 26/26] mlx5: Convert to netmem

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Message-ID: <9153be2e-76bc-3760-be31-4f0f96acd38c@redhat.com>
Date:   Thu, 8 Dec 2022 16:10:56 +0100
From:   Jesper Dangaard Brouer <jbrouer@...hat.com>
To:     "Matthew Wilcox (Oracle)" <willy@...radead.org>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        Ilias Apalodimas <ilias.apalodimas@...aro.org>
Cc:     brouer@...hat.com, netdev@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH 26/26] mlx5: Convert to netmem


On 06/12/2022 17.05, Matthew Wilcox (Oracle) wrote:
> Use the netmem APIs instead of the page_pool APIs.  Possibly we should
> add a netmem equivalent of skb_add_rx_frag(), but that can happen
> later.  Saves one call to compound_head() in the call to put_page()
> in mlx5e_page_release_dynamic() which saves 58 bytes of text.
> 
> Signed-off-by: Matthew Wilcox (Oracle)<willy@...radead.org>
> ---
>   drivers/net/ethernet/mellanox/mlx5/core/en.h  |  10 +-
>   .../net/ethernet/mellanox/mlx5/core/en/txrx.h |   4 +-
>   .../net/ethernet/mellanox/mlx5/core/en/xdp.c  |  23 ++--
>   .../net/ethernet/mellanox/mlx5/core/en/xdp.h  |   2 +-
>   .../net/ethernet/mellanox/mlx5/core/en_main.c |  12 +-
>   .../net/ethernet/mellanox/mlx5/core/en_rx.c   | 130 +++++++++---------
>   6 files changed, 93 insertions(+), 88 deletions(-)

This doesn't compile... patch that fix this is attached.
(I've boot it, but not run any mlx5 XDP tests, yet)

--Jesper

View attachment "27-mlx5-fix" of type "text/plain" (1868 bytes)