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Miller" , "Eric Dumazet" , Jakub Kicinski , Paolo Abeni , Tomasz Duszynski Subject: [net] Octeontx2-vf: Fix max packet length errors Date: Wed, 2 Jul 2025 16:35:18 +0530 Message-ID: <20250702110518.631532-1-hkelam@marvell.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-ORIG-GUID: wJJl6SlSnkd-Ld5lkG7ovL8M0nnxGp9z X-Authority-Analysis: v=2.4 cv=L98dQ/T8 c=1 sm=1 tr=0 ts=6865128f cx=c_pps a=rEv8fa4AjpPjGxpoe8rlIQ==:117 a=rEv8fa4AjpPjGxpoe8rlIQ==:17 a=Wb1JkmetP80A:10 a=M5GUcnROAAAA:8 a=Jid5xGn13soyQvd6F5IA:9 a=OBjm3rFKGHvpk9ecZwUJ:22 X-Proofpoint-GUID: wJJl6SlSnkd-Ld5lkG7ovL8M0nnxGp9z X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNzAyMDA5MCBTYWx0ZWRfX2XddZHyjGKh3 W2jyk4erqzaZqKsY6x5MOOY03gfudf4gmDZXB3Gmxs0OMEly48RdP26lIE0A6k+GnAW3AAQNyo1 +FUiI711q+hiXz/G81nuJarzuLesYfmoXKVK0Us9ig4f03TRHsSLlH8thAyp7zqvcvwUJOheYCe 1CwO/s6jZan1H0cnjStlYCg/Xf1pgGvzog6SU7MzHjyfh9JFrp0wS73Q/EziTVEalLpLqZ2ht+S 9dfhz/dj599ZJB4tM9uLIbgy4FoGd+mzqUu8MVqlo0ohUDl6Ct3XpyUGvWho9Lv641bOD7jrat2 FfNH3HqMgQGU8lWysajWyZBkfnvaf6RsXOVmiC61/rZPC4JsS2knmthONFxpP4dLLAaJDNZa5Od bfhCRPMGEU52oN0qXGFIrfIXJDVxvs3ZMULldixEOz/UriONIAMz6E78ZSkLaurKBVhnX41n X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.7,FMLib:17.12.80.40 definitions=2025-07-02_01,2025-06-27_01,2025-03-28_01 Content-Type: text/plain; charset="utf-8" Implement packet length validation before submitting packets to the hardware to prevent MAXLEN_ERR. Fixes: 3184fb5ba96e ("octeontx2-vf: Virtual function driver support") Signed-off-by: Hariprasad Kelam --- drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c b/drivers= /net/ethernet/marvell/octeontx2/nic/otx2_vf.c index 8a8b598bd389..766237cd86c3 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_vf.c @@ -394,6 +394,13 @@ static netdev_tx_t otx2vf_xmit(struct sk_buff *skb, st= ruct net_device *netdev) struct otx2_snd_queue *sq; struct netdev_queue *txq; =20 + /* Check for minimum and maximum packet length */ + if (skb->len <=3D ETH_HLEN || + (!skb_shinfo(skb)->gso_size && skb->len > vf->tx_max_pktlen)) { + dev_kfree_skb(skb); + return NETDEV_TX_OK; + } + sq =3D &vf->qset.sq[qidx]; txq =3D netdev_get_tx_queue(netdev, qidx); =20 --=20 2.34.1