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 4F7538BE0 for ; Tue, 28 Mar 2023 14:56:20 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C37FAC433D2; Tue, 28 Mar 2023 14:56:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1680015380; bh=mAHpkmi05QflHOCIMpQCMSwfagSYBGtmFIV6du/vM1E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=vMGuZxQuQZLrAzsNUK0OUbY75LNvn0JLaJkT7sbN1JnqYmXQ1sEbFWXP3jGWqmQJP Q1865d0RLQFkrXwooiYBm7eMSvYMb07HgFVgfz8HSr8V8CEGGyqa0lX5LIsAJIv6pq 1AaVk2Vc7l1ppZ4y2cDQSWFzfHI52Ml6TJHGqPFI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Ahmed Zaki , Michal Kubiak , Tony Nguyen , Sasha Levin Subject: [PATCH 6.1 028/224] iavf: do not track VLAN 0 filters Date: Tue, 28 Mar 2023 16:40:24 +0200 Message-Id: <20230328142618.482448206@linuxfoundation.org> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230328142617.205414124@linuxfoundation.org> References: <20230328142617.205414124@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Ahmed Zaki [ Upstream commit 964290ff32d132bf971d45b29f7de39756dab7c8 ] When an interface with the maximum number of VLAN filters is brought up, a spurious error is logged: [257.483082] 8021q: adding VLAN 0 to HW filter on device enp0s3 [257.483094] iavf 0000:00:03.0 enp0s3: Max allowed VLAN filters 8. Remove existing VLANs or disable filtering via Ethtool if supported. The VF driver complains that it cannot add the VLAN 0 filter. On the other hand, the PF driver always adds VLAN 0 filter on VF initialization. The VF does not need to ask the PF for that filter at all. Fix the error by not tracking VLAN 0 filters altogether. With that, the check added by commit 0e710a3ffd0c ("iavf: Fix VF driver counting VLAN 0 filters") in iavf_virtchnl.c is useless and might be confusing if left as it suggests that we track VLAN 0. Fixes: 0e710a3ffd0c ("iavf: Fix VF driver counting VLAN 0 filters") Signed-off-by: Ahmed Zaki Reviewed-by: Michal Kubiak Signed-off-by: Tony Nguyen Signed-off-by: Sasha Levin --- drivers/net/ethernet/intel/iavf/iavf_main.c | 8 ++++++++ drivers/net/ethernet/intel/iavf/iavf_virtchnl.c | 2 -- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c index 3dad834b9b8e5..41edcf9e154a3 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_main.c +++ b/drivers/net/ethernet/intel/iavf/iavf_main.c @@ -893,6 +893,10 @@ static int iavf_vlan_rx_add_vid(struct net_device *netdev, { struct iavf_adapter *adapter = netdev_priv(netdev); + /* Do not track VLAN 0 filter, always added by the PF on VF init */ + if (!vid) + return 0; + if (!VLAN_FILTERING_ALLOWED(adapter)) return -EIO; @@ -919,6 +923,10 @@ static int iavf_vlan_rx_kill_vid(struct net_device *netdev, { struct iavf_adapter *adapter = netdev_priv(netdev); + /* We do not track VLAN 0 filter */ + if (!vid) + return 0; + iavf_del_vlan(adapter, IAVF_VLAN(vid, be16_to_cpu(proto))); if (proto == cpu_to_be16(ETH_P_8021Q)) clear_bit(vid, adapter->vsi.active_cvlans); diff --git a/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c b/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c index 0752fd67c96e5..2c03ca01fdd9c 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c +++ b/drivers/net/ethernet/intel/iavf/iavf_virtchnl.c @@ -2438,8 +2438,6 @@ void iavf_virtchnl_completion(struct iavf_adapter *adapter, list_for_each_entry(f, &adapter->vlan_filter_list, list) { if (f->is_new_vlan) { f->is_new_vlan = false; - if (!f->vlan.vid) - continue; if (f->vlan.tpid == ETH_P_8021Q) set_bit(f->vlan.vid, adapter->vsi.active_cvlans); -- 2.39.2