From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 39A5623B627 for ; Mon, 11 Aug 2025 23:42:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754955766; cv=none; b=kQGa4T3zSH6dREyaG1wiNHb3tqi4r/9hop40ukMPWmG2ROBigXx5vLlEtxs/J0s82OipWc6klInTKRms2NKWyO/dgjGA5gv5kRbe3+ihG2zOjpp+1lhCQbhbnBoOaUYibfe/44c3caT0+9QTQn/tonWsQbSlru2+vMl1WT3sT00= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754955766; c=relaxed/simple; bh=AVuJzPA8pFuYwNuHd2NlZAqocac2HB1GGMGejKdbavk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=RAHtI6G9s0wqz98w4+QitHXPelh+cnv9fuEpVY65tspcmPxunJn2KWojd0LgYDpaVxUAbYSR0mmsMn6+vFFmm40w4jdSo2NgD0zLTGTjZfpJPoYhiObEbJv5KD70ODz5PzV+uvX75gD6waytEvRd5wpcjiDilHxt9lKemzny5wA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=VoMUomZb; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="VoMUomZb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7002BC4CEF7; Mon, 11 Aug 2025 23:42:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1754955765; bh=AVuJzPA8pFuYwNuHd2NlZAqocac2HB1GGMGejKdbavk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VoMUomZbUNV/1fVDJtNBLRrEFdsqfB8VaoXC4dQD1LD4xQlxo+BvnDPB8jeNt93Rg +za+Q+7Eo1T+jOJmCufTcVjdO16IqIJy+5t8jQCLd0efmZ7CnPvjyzVTenXAWy/TdJ PIR2ZfokVJypF1HD0yS/moDf4ZEE3xSveLzezzH9OtpdPl3egP4pWr+JebQhc4tjir tYvP0AkG3/sNsKL5EFtKyfSlzLiYCtcqnpL2x593y0Mv4BX0P18spO7MH2U1SJue6p Saz+4JLMe4hEQBxRJWo1p4JwAsOZAxokMQ7Rnd69+AIALN5POPcagQp+tfOi0xkp8b VJ3PGwkFVXp6w== From: Jakub Kicinski To: davem@davemloft.net Cc: netdev@vger.kernel.org, edumazet@google.com, pabeni@redhat.com, andrew+netdev@lunn.ch, horms@kernel.org, donald.hunter@gmail.com, michael.chan@broadcom.com, pavan.chebbi@broadcom.com, willemdebruijn.kernel@gmail.com, ecree.xilinx@gmail.com, Jakub Kicinski , alexanderduyck@fb.com, mohsin.bashr@gmail.com Subject: [PATCH net-next v4 2/4] eth: fbnic: support RSS on IPv6 Flow Label Date: Mon, 11 Aug 2025 16:42:10 -0700 Message-ID: <20250811234212.580748-3-kuba@kernel.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250811234212.580748-1-kuba@kernel.org> References: <20250811234212.580748-1-kuba@kernel.org> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Support IPv6 Flow Label hashing. Use both inner and outer IPv6 header's Flow Label if both headers are detected. Flow Label is unlike normal header fields, by enabling it user accepts the unstable hash and possible reordering. Because of that I think it's reasonable to hash over all Flow Labels we can find, even tho we don't hash over all L3 addresses. Signed-off-by: Jakub Kicinski --- CC: alexanderduyck@fb.com CC: mohsin.bashr@gmail.com --- drivers/net/ethernet/meta/fbnic/fbnic_ethtool.c | 2 +- drivers/net/ethernet/meta/fbnic/fbnic_rpc.c | 2 ++ 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_ethtool.c b/drivers/net/ethernet/meta/fbnic/fbnic_ethtool.c index dc7ba8d5fc43..461c8661eb93 100644 --- a/drivers/net/ethernet/meta/fbnic/fbnic_ethtool.c +++ b/drivers/net/ethernet/meta/fbnic/fbnic_ethtool.c @@ -1310,7 +1310,7 @@ fbnic_get_rss_hash_opts(struct net_device *netdev, #define FBNIC_L2_HASH_OPTIONS \ (RXH_L2DA | RXH_DISCARD) #define FBNIC_L3_HASH_OPTIONS \ - (FBNIC_L2_HASH_OPTIONS | RXH_IP_SRC | RXH_IP_DST) + (FBNIC_L2_HASH_OPTIONS | RXH_IP_SRC | RXH_IP_DST | RXH_IP6_FL) #define FBNIC_L4_HASH_OPTIONS \ (FBNIC_L3_HASH_OPTIONS | RXH_L4_B_0_1 | RXH_L4_B_2_3) diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_rpc.c b/drivers/net/ethernet/meta/fbnic/fbnic_rpc.c index 8ff07b5562e3..a4dc1024c0c2 100644 --- a/drivers/net/ethernet/meta/fbnic/fbnic_rpc.c +++ b/drivers/net/ethernet/meta/fbnic/fbnic_rpc.c @@ -71,6 +71,8 @@ u16 fbnic_flow_hash_2_rss_en_mask(struct fbnic_net *fbn, int flow_type) rss_en_mask |= FBNIC_FH_2_RSSEM_BIT(IP_DST, IP_DST, flow_hash); rss_en_mask |= FBNIC_FH_2_RSSEM_BIT(L4_B_0_1, L4_SRC, flow_hash); rss_en_mask |= FBNIC_FH_2_RSSEM_BIT(L4_B_2_3, L4_DST, flow_hash); + rss_en_mask |= FBNIC_FH_2_RSSEM_BIT(IP6_FL, OV6_FL_LBL, flow_hash); + rss_en_mask |= FBNIC_FH_2_RSSEM_BIT(IP6_FL, IV6_FL_LBL, flow_hash); return rss_en_mask; } -- 2.50.1