From nobody Wed Apr 8 04:41:03 2026 Received: from mail-pf1-f178.google.com (mail-pf1-f178.google.com [209.85.210.178]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0A4973EC2DA for ; Tue, 10 Mar 2026 21:23:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.178 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773177787; cv=none; b=sXusqGHI4Fh7QMp4fubZERd1kphQwWpmX7E3q30LUEH3l8diYUZ0JimQgau9+Mhu0ChAVETaTrxgd3Z9St3i/+md6LlQlpirTEtYJOA52UO3zfVN/vzeO38pn9WrsnMq1rsx6jgotJBAUHZa95Bkz+eHL8sU0Jni3y18bHTOhsg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773177787; c=relaxed/simple; bh=4pl2X834Ki+65pFAak8gvu/02cfVhH7h28ap53FwqVw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ORowAWpyrfZPXPsnNmMlR9Vh13rPHmd1qWRDRyBXyI0n/ScWde1THHj6MldhpZF17cWIIx8QTn6Pvmo0HcBzkHdf/I3mG61o2P+RUA1DSL0Ws3BZwk3NzfI65gp4qcE0dmLdJfM28uZT0wggZEPiHqjvBoj488Qe20l/9wUZq2w= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=dama.to; spf=none smtp.mailfrom=dama.to; dkim=pass (2048-bit key) header.d=dama-to.20230601.gappssmtp.com header.i=@dama-to.20230601.gappssmtp.com header.b=1G1Sma4f; arc=none smtp.client-ip=209.85.210.178 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=dama.to Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=dama.to Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=dama-to.20230601.gappssmtp.com header.i=@dama-to.20230601.gappssmtp.com header.b="1G1Sma4f" Received: by mail-pf1-f178.google.com with SMTP id d2e1a72fcca58-824c9da9928so7469372b3a.3 for ; Tue, 10 Mar 2026 14:23:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dama-to.20230601.gappssmtp.com; s=20230601; t=1773177780; x=1773782580; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=ABX/dNXYvjh7NZFYOV2OPz3Z8fQKAQKA9c431nqYi7A=; b=1G1Sma4fBugbOU7gtRT1OwIb1ji303o7ELRpHy3UVZugKGEfOnOh5Aq89CawZNpQMw diQWKa2L9nirnbCO0POM9z3WB/+Z6hjn6oA0m+Ns0sYucSURMZ7W/cly7rdUXRWmKl50 QqZTeOw1lN5/hQIzAsx6xNLcjITra+a9S+SPSE74rK6DQ7BN55EoZiaOBpZc+KU1mjGP Nz438uavmlSJhNPe+yoUpA+HWlKM0S7X5rBG5g4vOuBSu4H07lOEsMIUSsF3T4U1QHsi Lnm2IFYoi/mDyfpQ1rOvsNSRDNZql+Ek9jlmRDzWX2eSz9KpAo+BYbc8oFdvmSWQjLvl 1TlQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1773177780; x=1773782580; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=ABX/dNXYvjh7NZFYOV2OPz3Z8fQKAQKA9c431nqYi7A=; b=U+8xKK/AMNJmHb06rS1JR6+4DevdaCbEc9u0SW0MHUwCcK8ssuvdmKkYRY7rbdZhey mD1LbIlgP24Q0q3bfSVjncjBIIJGabr6yiv2zLAFg8TxEbHOIv0t2HtkfyOkUHovyZ4e LPPFi0QkgYsJgP5uUjogf0fWeCuITMCfr8j59Uc3klsMmjSQPFYbhM6M+VfIuiC7zdud kXWWqIZcWHZhKQczwD0HoSbvTABYQlCYIUCBQEFaBZbj1HSGm/8MHJxXq1QAXRPa1UUz X94qj247995X6bTyH65iJvexvxgMUeXgFJ0ImLmkNtzOzXQvanQbn/LQV0u/V0CGCWpS lCdw== X-Gm-Message-State: AOJu0YyC4et6GlzJxFm/bbLBhU5zfFlPa2SMhFWTHkwmdpl3R7qoFqvN dADanFzZpjW6KWOrTf9MwL8Mi0dSH1XT/zrkG1bq1SVtK14/FEdBYxg/qyEmbHsB4vc= X-Gm-Gg: ATEYQzwGpEkeG89QD0lM4zzKnxwzFqWmlbxe/USuWN8EJY9+mj50nWICF8Hl/bFeXHg +31YqIxInw2iPSCgpMs3tx7Uvk3MI+hISCMOVUBXErvzGLE22cqiV2zfy4KaIgg3lTu4HQsjpRv f9AbXmj424Gw1PvBkPNLBk48Sa6LmK6J3cHU99iz7Ma/tZkcvXXrbZ6/XIa1us4ikHGWSRziZ5I 9/ELDJ9IGZ8H6Oct7gkoTbv0jI+dVhyx3G+Bf2w/rXb/WBTQ27vKSb6R6s1m/iIi1zkjHTeIgZ+ p24Int+FpbP5IwBRdnGAzi1olnqGE7xgQRKDhTAX5WoQV65FHGbgPFAloHvjsgQUnKOf26vsfHE GXO+ABFDxEbVB6EpZIpd2eTxdKJt/rJeuLi7+9WVeTlimjn4MMm5x0tXeyfdJGRq+1PWUdhSijZ hWRcJm X-Received: by 2002:a05:6a20:748f:b0:398:6ea8:21d2 with SMTP id adf61e73a8af0-398c5f3e353mr65122637.19.1773177780185; Tue, 10 Mar 2026 14:23:00 -0700 (PDT) Received: from localhost ([2a03:2880:2ff:72::]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-c73cdf9f4e8sm123145a12.24.2026.03.10.14.22.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 10 Mar 2026 14:22:59 -0700 (PDT) From: Joe Damato To: netdev@vger.kernel.org, Michael Chan , Pavan Chebbi , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: linux-kernel@vger.kernel.org, Joe Damato Subject: [RFC net-next 10/10] net: bnxt: Dispatch to SW USO Date: Tue, 10 Mar 2026 14:21:58 -0700 Message-ID: <20260310212209.2263939-11-joe@dama.to> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20260310212209.2263939-1-joe@dama.to> References: <20260310212209.2263939-1-joe@dama.to> 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 Content-Type: text/plain; charset="utf-8" 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 Signed-off-by: Joe Damato --- 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/ethern= et/broadcom/bnxt/bnxt.c index 47dc98479066..72d66043096a 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -506,6 +506,11 @@ 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 =3D bnxt_tx_avail(bp, txr); if (unlikely(free_size < skb_shinfo(skb)->nr_frags + 2)) { /* We must have raced with NAPI cleanup */ --=20 2.52.0