From: Joe Damato <joe@dama.to>
To: Pavan Chebbi <pavan.chebbi@broadcom.com>
Cc: netdev@vger.kernel.org, Michael Chan <michael.chan@broadcom.com>,
Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
horms@kernel.org, linux-kernel@vger.kernel.org, leon@kernel.org
Subject: Re: [net-next v3 08/12] net: bnxt: Implement software USO
Date: Thu, 19 Mar 2026 10:12:10 -0700 [thread overview]
Message-ID: <abwuamlgUcIV43A6@devvm20253.cco0.facebook.com> (raw)
In-Reply-To: <CALs4sv3i9qk879+OFyj1Ecq6-Kkuuu=GAY2hJCFYOfFg3sy_Jg@mail.gmail.com>
On Thu, Mar 19, 2026 at 05:11:03PM +0530, Pavan Chebbi wrote:
> <...>
>
> > +
> > + hdr_len = tso_start(skb, &tso);
> > + mss = skb_shinfo(skb)->gso_size;
> > + total_payload = skb->len - hdr_len;
> > + num_segs = DIV_ROUND_UP(total_payload, mss);
> > +
> > + /* Zero the csum fields so tso_build_hdr will propagate zeroes into
> > + * every segment header. HW csum offload will recompute from scratch.
> > + */
> > + udp_hdr(skb)->check = 0;
> > + if (!tso.ipv6)
> > + ip_hdr(skb)->check = 0;
> > +
> > + if (unlikely(num_segs <= 1))
> > + return NETDEV_TX_OK;
>
> goto drop would be more appropriate?
Yes, you are right. Good catch. Will fix it in the v4; thanks for reviewing!
next prev parent reply other threads:[~2026-03-19 17:12 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-18 19:13 [net-next v3 00/12] Add TSO map-once DMA helpers and bnxt SW USO support Joe Damato
2026-03-18 19:13 ` [net-next v3 01/12] net: tso: Introduce tso_dma_map Joe Damato
2026-03-18 19:13 ` [net-next v3 02/12] net: tso: Add tso_dma_map helpers Joe Damato
2026-03-19 7:39 ` Leon Romanovsky
2026-03-19 17:09 ` Joe Damato
2026-03-19 19:34 ` Leon Romanovsky
2026-03-18 19:13 ` [net-next v3 03/12] net: bnxt: Export bnxt_xmit_get_cfa_action Joe Damato
2026-03-19 11:32 ` Pavan Chebbi
2026-03-18 19:13 ` [net-next v3 04/12] net: bnxt: Add a helper for tx_bd_ext Joe Damato
2026-03-19 11:33 ` Pavan Chebbi
2026-03-18 19:13 ` [net-next v3 05/12] net: bnxt: Use dma_unmap_len for TX completion unmapping Joe Damato
2026-03-19 11:35 ` Pavan Chebbi
2026-03-18 19:13 ` [net-next v3 06/12] net: bnxt: Add TX inline buffer infrastructure Joe Damato
2026-03-18 19:13 ` [net-next v3 07/12] net: bnxt: Add boilerplate GSO code Joe Damato
2026-03-18 19:13 ` [net-next v3 08/12] net: bnxt: Implement software USO Joe Damato
2026-03-19 11:41 ` Pavan Chebbi
2026-03-19 17:12 ` Joe Damato [this message]
2026-03-18 19:13 ` [net-next v3 09/12] net: bnxt: Add SW GSO completion and teardown support Joe Damato
2026-03-18 19:13 ` [net-next v3 10/12] net: bnxt: Dispatch to SW USO Joe Damato
2026-03-18 19:13 ` [net-next v3 11/12] net: netdevsim: Add support for " Joe Damato
2026-03-18 19:13 ` [net-next v3 12/12] selftests: drv-net: Add USO test Joe Damato
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