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 8450D1922D3 for ; Thu, 24 Jul 2025 01:51:22 +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=1753321882; cv=none; b=gpuwjIWuTQI8F3b0ZgPhj71rY5Wa/doqQ6+sKydajkM1dUUbl64TnH5ENaxGSKN07tG5RHcV6fW/vn8IGh0htNIvMOaZPo049qfuPEKx5Om0c8VMWdp1gBAXzQ0CwIrN2IJOxHPddosWQ03pJP5wGy5bS+vDOywdFwPz2THP3RE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753321882; c=relaxed/simple; bh=GLhBndVuu/ON447hgfJ/Gm3e/7zo6AmcKT338lV1+TA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=DLIvXgJDIuo4ba65nia+WJNZXo/I4gW3GzSXAmAXO2vX9MRXkoWHFG5fQhqMi8O4F4ZBLQShu1TNG4Rl70YkGphR5oEoQ6WOQXBIk7Ecq1ORQpPE6nJLQH4x7DCU5VwTLeBZ1rd0LBrZEgG/um0BUf20tPxqIJSXKTsHt3L5HzM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=f665C2Cs; 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="f665C2Cs" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 00446C4CEF6; Thu, 24 Jul 2025 01:51:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1753321882; bh=GLhBndVuu/ON447hgfJ/Gm3e/7zo6AmcKT338lV1+TA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=f665C2CsnCikYxj242xAzMCv+8+aDEHkxXGKynr+pzqZO4tLugXb2Rm9HkEOa0M4A y7coTCb66WsQdouvkSm4l9pxtsSy5rdC+DlipvcxL/DtoiOr0/+mWmL4uVR9CElPIY 04AXU06iDnIL0c0C8EQo8ubSZUNclkpfHSv7F1h4jwiiBey4s3aJQA88EhBm300JiX XROPTevYlOZeo6qSP9dBmOQz4KtAqs8tr8erwD4HMCrmMgO3Qnu9O61qtaV5+ETIjx zBkT7aZZ8JjHLePuZkL9RKVaycA55QKz5Oev17Os2Kfa68laj0w0qNXWUTGHEgCi1q r/5k3mTGQXaEg== 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, andrew@lunn.ch, willemdebruijn.kernel@gmail.com, Jakub Kicinski , alexanderduyck@fb.com, mohsin.bashr@gmail.com Subject: [PATCH net-next v3 2/4] eth: fbnic: support RSS on IPv6 Flow Label Date: Wed, 23 Jul 2025 18:50:59 -0700 Message-ID: <20250724015101.186608-3-kuba@kernel.org> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250724015101.186608-1-kuba@kernel.org> References: <20250724015101.186608-1-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 588da02d6e22..fe3a203dee75 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