[dpdk-dev] [PATCH 3/3] doc: fix vector mode info for bnxt

Lance Richardson lance.richardson at broadcom.com
Wed Sep 30 19:28:25 CEST 2020


On Tue, Sep 29, 2020 at 5:01 PM Ajit Khaparde
<ajit.khaparde at broadcom.com> wrote:
>
> Vector mode is disabled when jumbo frames are enabled.
> This usage guide was reporting it incorrectly.
>
> Fixes: 1adaf0e0f2ee ("doc: update bnxt guide")
> Cc:stable at dpdk.org
>
> Signed-off-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
> ---
>  doc/guides/nics/bnxt.rst | 1 -
>  1 file changed, 1 deletion(-)
>
> diff --git a/doc/guides/nics/bnxt.rst b/doc/guides/nics/bnxt.rst
> index 129a16cfc..48ec6156d 100644
> --- a/doc/guides/nics/bnxt.rst
> +++ b/doc/guides/nics/bnxt.rst
> @@ -836,7 +836,6 @@ This improved performance comes from several optimizations:
>
>         DEV_RX_OFFLOAD_VLAN_STRIP
>         DEV_RX_OFFLOAD_KEEP_CRC
> -       DEV_RX_OFFLOAD_JUMBO_FRAME
>         DEV_RX_OFFLOAD_IPV4_CKSUM
>         DEV_RX_OFFLOAD_UDP_CKSUM
>         DEV_RX_OFFLOAD_TCP_CKSUM
> --
> 2.21.1 (Apple Git-122.3)
>

NAK - receive vector mode *is* allowed when jumbo is enabled, as
long as the MTU is not large enough to require scattered RX (which
also depends on the mbuf size).

   Lance


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