netdev - Re: [PATCH bpf-next v4 01/11] xsk: Support tx_metadata

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Message-ID: <ZTauYK21mT_Djn7t@google.com>
Date: Mon, 23 Oct 2023 10:33:20 -0700
From: Stanislav Fomichev <sdf@...gle.com>
To: Jakub Kicinski <kuba@...nel.org>
Cc: bpf@...r.kernel.org, ast@...nel.org, daniel@...earbox.net, 
	andrii@...nel.org, martin.lau@...ux.dev, song@...nel.org, yhs@...com, 
	john.fastabend@...il.com, kpsingh@...nel.org, haoluo@...gle.com, 
	jolsa@...nel.org, toke@...nel.org, willemb@...gle.com, dsahern@...nel.org, 
	magnus.karlsson@...el.com, bjorn@...nel.org, maciej.fijalkowski@...el.com, 
	hawk@...nel.org, yoong.siang.song@...el.com, netdev@...r.kernel.org, 
	xdp-hints@...-project.net
Subject: Re: [PATCH bpf-next v4 01/11] xsk: Support tx_metadata_len

On 10/20, Jakub Kicinski wrote:
> On Thu, 19 Oct 2023 10:49:34 -0700 Stanislav Fomichev wrote:
> > - 4-byte aligned
> 
> But there is an 8B field in it. Won't this trap on some funky
> architecture of yore?

Hmm, good point, will update this to 8 byte alignment and will use
8-bit timestamp as a reason.