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Tue, 13 Jan 2026 16:27:55 -0500 (EST) From: Alice Mikityanska To: Daniel Borkmann , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Xin Long , Willem de Bruijn , David Ahern , Nikolay Aleksandrov Cc: Shuah Khan , Stanislav Fomichev , netdev@vger.kernel.org, Alice Mikityanska Subject: [PATCH net-next v2 08/11] bnxt_en: Remove jumbo_remove step from TX path Date: Tue, 13 Jan 2026 23:26:52 +0200 Message-ID: <20260113212655.116122-9-alice.kernel@fastmail.im> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260113212655.116122-1-alice.kernel@fastmail.im> References: <20260113212655.116122-1-alice.kernel@fastmail.im> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Alice Mikityanska Now that the kernel doesn't insert HBH for BIG TCP IPv6 packets, remove unnecessary steps from the bnxt_en TX path, that used to check and remove HBH. Signed-off-by: Alice Mikityanska --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 21 --------------------- 1 file changed, 21 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index cb78614d4108..6a143dc6cb09 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -517,9 +517,6 @@ static netdev_tx_t bnxt_start_xmit(struct sk_buff *skb, struct net_device *dev) return NETDEV_TX_BUSY; } - if (unlikely(ipv6_hopopt_jumbo_remove(skb))) - goto tx_free; - length = skb->len; len = skb_headlen(skb); last_frag = skb_shinfo(skb)->nr_frags; @@ -13852,7 +13849,6 @@ static bool bnxt_exthdr_check(struct bnxt *bp, struct sk_buff *skb, int nw_off, u8 **nextp) { struct ipv6hdr *ip6h = (struct ipv6hdr *)(skb->data + nw_off); - struct hop_jumbo_hdr *jhdr; int hdr_count = 0; u8 *nexthdr; int start; @@ -13881,24 +13877,7 @@ static bool bnxt_exthdr_check(struct bnxt *bp, struct sk_buff *skb, int nw_off, if (hdrlen > 64) return false; - /* The ext header may be a hop-by-hop header inserted for - * big TCP purposes. This will be removed before sending - * from NIC, so do not count it. - */ - if (*nexthdr == NEXTHDR_HOP) { - if (likely(skb->len <= GRO_LEGACY_MAX_SIZE)) - goto increment_hdr; - - jhdr = (struct hop_jumbo_hdr *)hp; - if (jhdr->tlv_type != IPV6_TLV_JUMBO || jhdr->hdrlen != 0 || - jhdr->nexthdr != IPPROTO_TCP) - goto increment_hdr; - - goto next_hdr; - } -increment_hdr: hdr_count++; -next_hdr: nexthdr = &hp->nexthdr; start += hdrlen; } -- 2.52.0