Re: [PATCH 0/2] bnxt_en: Add XDP RSS hash metadata

[Chris Arges <carges@cloudflare.com>]

On 2026-02-13 13:24:26, Chris J Arges wrote:
> This patchset adds the ability to use an XDP program to extract the RSS
> hash of a given an xdp_md context.
>

I see net-next is closed: https://netdev.bots.linux.dev/net-next.html
I'll re-send with proper target after Feb 23rd.
--chris


 
> For example this XDP program extracts hash and rss_type:
> ```
>         ret = bpf_xdp_metadata_rx_hash(ctx, &hash, &rss_type);
>         if (ret == 0) {
>                 bpf_printk("XDP: RX hash=0x%x type=%02x", hash, rss_type);
>         }
> ```
> 
> I was able to test this with a Broadcom BCM57414 NIC and verify that the
> rss_type and hash were correct for IPv4/6 TCP/UDP and ICMP traffic.
> 
> Chris J Arges (2):
>   bnxt_en: use bnxt_xdp_buff for xdp context
>   bnxt_en: Implement XDP RSS hash metadata extraction
> 
>  drivers/net/ethernet/broadcom/bnxt/bnxt.c     | 29 ++++++++----
>  drivers/net/ethernet/broadcom/bnxt/bnxt.h     |  2 +
>  drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c | 47 +++++++++++++++++++
>  drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.h |  9 ++++
>  4 files changed, 77 insertions(+), 10 deletions(-)
> 
> -- 
> 2.43.0