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 B890038B7D6; Mon, 18 May 2026 18:32:44 +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=1779129164; cv=none; b=SYlwuIy4xVFClZckyzwwGqp/NldEb6V6QKW6QCDcZDHm/y8WcZ1AXqHf6cnkaolNC7n83Tv2pgVaWhiWMMhQ29XhM9l1iVHKHchuwRHgYvpC4H8Bx8RXj/Sn/aURBbAcskWmj2jIJLn0yQX2B27mS9ByM+fDgKGHVasJwfmsTeY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779129164; c=relaxed/simple; bh=0RaJhtpEWtU3k0n7Y9j7Zkx9qNKgrBCTo8uIa101wog=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ZJMLD23HO3DkUL7iKYUANe7N3AzewWdFHZ69eEBQXsM7L8jkiVPTpv4j2rZErRvSvrJJkPYWjkyZzKJqjiVYRsMYCxQ7SCDQ1eNgn52cTmJk1TbviOBS96mDuOyat7FVEE9UXpVdJdb7BxoNUZbXG7Zn7najjfQxDA0c7GXpMz8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=JyhlgZov; 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="JyhlgZov" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 99763C2BCB7; Mon, 18 May 2026 18:32:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1779129164; bh=0RaJhtpEWtU3k0n7Y9j7Zkx9qNKgrBCTo8uIa101wog=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=JyhlgZovN73HWmKI3crtE6jK8YSJhJP+DNC3a1VBckhD1IKOpEmOM1s/YK5NN7B97 100R11BiJv5d6rHzoLNaEXlKwmi+hcwisSfLhkQJ7sX7m6qBgK9Lz/WmxrjBXaluxS lCb+x1KubsFK3dJK7Q51n0ZMijfTS75+zhXQgBxmgbwuDZQ4Upn+DuC8uRxyAPqKQG y79+ghnrAAg304oZh6quO0j4Vr7oBOBW17Y5AlWQ1NWYWLoqxq0mJhfjUpwQHyrv/v cpxJwVojC4dBE88xdSIIMQ3pW4Vw3/uiN0Ywt9XOZ3trslPcVpi5cBwo3V/gIeAUWN nfmQ2rBRZDJeA== Date: Mon, 18 May 2026 19:32:38 +0100 From: Simon Horman To: Chris Packham Cc: anthony.l.nguyen@intel.com, przemyslaw.kitszel@intel.com, andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, aleksander.lobakin@intel.com, intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Blair Steven , Carl Smith Subject: Re: [PATCH net-next] i40e: Avoid repeating RX filter warning Message-ID: <20260518183238.GE98116@horms.kernel.org> References: <20260514003733.1718771-1-chris.packham@alliedtelesis.co.nz> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260514003733.1718771-1-chris.packham@alliedtelesis.co.nz> On Thu, May 14, 2026 at 12:37:33PM +1200, Chris Packham wrote: > When the i40e runs out of space for RX filters the driver switches to > promiscuous mode and warns that it has done so. In scenarios with a > large number of these filters this can generate a lot of warnings. For > example: > > $ dmesg -c > /dev/null > $ ip link add dev br0 type bridge vlan_filtering 1 vlan_default_pvid 1 > $ ip link set dev eth7 master br0 > $ bridge vlan add vid 1 dev eth7 pvid untagged self > $ bridge vlan add vid 2-4094 dev eth7 tagged > $ dmesg > [ 25.601705] i40e 0000:01:00.1: Error LIBIE_AQ_RC_ENOSPC, forcing overflow promiscuous on PF > [ 25.601833] i40e 0000:01:00.1: Error LIBIE_AQ_RC_ENOSPC, forcing overflow promiscuous on PF > [ 25.601961] i40e 0000:01:00.1: Error LIBIE_AQ_RC_ENOSPC, forcing overflow promiscuous on PF > [ 25.602088] i40e 0000:01:00.1: Error LIBIE_AQ_RC_ENOSPC, forcing overflow promiscuous on PF > [ 25.602216] i40e 0000:01:00.1: Error LIBIE_AQ_RC_ENOSPC, forcing overflow promiscuous on PF > [ 25.602344] i40e 0000:01:00.1: Error LIBIE_AQ_RC_ENOSPC, forcing overflow promiscuous on PF > ... > > Use test_and_set_bit() so that the warning is only issued when the > driver enables promiscuous mode and not on the addition of subsequent RX > filters. > > Signed-off-by: Chris Packham > --- > > Resend with net-next tag Reviewed-by: Simon Horman