From 28f2c22398fbaaad9f16ac84647a3ed9e1a1e284 Mon Sep 17 00:00:00 2001 From: Joe Damato Date: Wed, 8 Apr 2026 16:05:58 -0700 Subject: [PATCH] net: bnxt: Dispatch to SW USO Wire in the SW USO path added in preceding commits when hardware USO is not possible. When a GSO skb with SKB_GSO_UDP_L4 arrives and the NIC lacks HW USO capability, redirect to bnxt_sw_udp_gso_xmit() which handles software segmentation into individual UDP frames submitted directly to the TX ring. Suggested-by: Jakub Kicinski Reviewed-by: Pavan Chebbi Signed-off-by: Joe Damato Link: https://patch.msgid.link/20260408230607.2019402-10-joe@dama.to Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 26aae48a7d0e..2715632115a5 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -508,6 +508,11 @@ static netdev_tx_t bnxt_start_xmit(struct sk_buff *skb, struct net_device *dev) } } #endif + if (skb_is_gso(skb) && + (skb_shinfo(skb)->gso_type & SKB_GSO_UDP_L4) && + !(bp->flags & BNXT_FLAG_UDP_GSO_CAP)) + return bnxt_sw_udp_gso_xmit(bp, txr, txq, skb); + free_size = bnxt_tx_avail(bp, txr); if (unlikely(free_size < skb_shinfo(skb)->nr_frags + 2)) { /* We must have raced with NAPI cleanup */