[Intel-wired-lan] [PATCH bpf v3 5/9] i40e: fix registering XDP RxQ info

[Loktionov, Aleksandr]

> -----Original Message-----
> From: Zaremba, Larysa <larysa.zaremba at intel.com>
> Sent: Tuesday, February 17, 2026 2:25 PM
> To: bpf at vger.kernel.org
> Cc: Zaremba, Larysa <larysa.zaremba at intel.com>; Claudiu Manoil
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> lan at lists.osuosl.org; linux-kselftest at vger.kernel.org; Loktionov,
> Aleksandr <aleksandr.loktionov at intel.com>; Dragos Tatulea
> <dtatulea at nvidia.com>
> Subject: [PATCH bpf v3 5/9] i40e: fix registering XDP RxQ info
> 
> Current way of handling XDP RxQ info in i40e has following problems:
> * when xsk_buff_pool is detached, memory model is not unregistered
> before
>   registering a new one, this leads to a dangling xsk_buff_pool in the
>   memory model table
> * frag_size is not updated when xsk_buff_pool is detached or when MTU
> is
>   changed, this leads to growing tail always failing for multi-buffer
>   packets.
> 
> Couple XDP RxQ info registering with buffer allocations and
> unregistering with cleaning the ring.
> 
> Fixes: a045d2f2d03d ("i40e: set xdp_rxq_info::frag_size")
> Signed-off-by: Larysa Zaremba <larysa.zaremba at intel.com>
> ---
>  drivers/net/ethernet/intel/i40e/i40e_main.c | 34 ++++++++++++--------
> -  drivers/net/ethernet/intel/i40e/i40e_txrx.c |  5 +--
>  2 files changed, 22 insertions(+), 17 deletions(-)
> 

...

> --
> 2.52.0

Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov at intel.com>