From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 66F282DC783; Mon, 17 Aug 2026 14:27:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786976866; cv=none; b=FZw522sEuMkYDXbgRyj+oa5NvtSMVamrckVJ/3Mo5WUzz0v/ZKa1utadQoOZ1A4Wlb6Map31q6CKWs9AcinBQzKkQurTKbamV/jp4+p3FHFGSOjXWGzx13M5ehdeDwitE5koeX2ScL9kk7HDFkFB7wUj55/Cd5Z5cecHK25EB9s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786976866; c=relaxed/simple; bh=t0kxuyEmWJKv55kuch19QVD1+wzdWL85VsNOT3hbcBc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=R0sgeY1KhxcG0+ctoLdfvY7SXleZTy+0mlmCXsvk0xoniUP6YNXLAbzKxonKqJLqvAxm9bh9dxl+csLOP9DCo7W1qzwrVAsIm2DIrAgWgZLIHhy6RFHXwZBoOTbGllFv/8aDMuY+h5/TCsEa3sitAxvxVG8zETx8OZcYQUMnJBU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=TE/+JxAA; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="TE/+JxAA" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C50061F000E9; Mon, 17 Aug 2026 14:27:44 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1786976865; bh=b1lX9BSIQxfgI2oJHQTRtBu8faS3fsSzBMIcvWXHAtY=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=TE/+JxAAor8Vbt8xPvS7X5BMyw7FGqhENrXIms4/SAhlltsryXdHGBeIGCAIWi1lE 1gAosR9EanDjumEbS21lv7YkfPeLIwUeMXlCcm2tcMCSDGMLHcmb+yWG3pT1PRZyP+ +tluzGLmaJFDUm8YDSmXZXpMGWrgNLUdnvlqm2CI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Alexei Lazar , Carolina Jubran , Tariq Toukan , Pavan Chebbi , Jakub Kicinski , Sasha Levin Subject: [PATCH 5.15 130/456] net/mlx5e: Reject unsupported CB Shaper TSA in ETS validation Date: Mon, 17 Aug 2026 15:28:40 +0200 Message-ID: <20260817132545.194429630@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260817132539.792407575@linuxfoundation.org> References: <20260817132539.792407575@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Alexei Lazar [ Upstream commit 9173e1d3c7c7d49a71eee813091f9e834ec7cee5 ] Credit Based (CB) TSA is not supported by the mlx5 driver, so reject any configurations that specify it. Fixes: 08fb1dacdd76 ("net/mlx5e: Support DCBNL IEEE ETS") Signed-off-by: Alexei Lazar Reviewed-by: Carolina Jubran Signed-off-by: Tariq Toukan Reviewed-by: Pavan Chebbi Link: https://patch.msgid.link/20260717075125.1244877-3-tariqt@nvidia.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c b/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c index bb1dd223ecf5ed..4be89f0d020ea4 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c @@ -309,6 +309,14 @@ static int mlx5e_dbcnl_validate_ets(struct net_device *netdev, } } + for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { + if (ets->tc_tsa[i] == IEEE_8021QAZ_TSA_CB_SHAPER) { + netdev_err(netdev, + "Failed to validate ETS: CB Shaper is not supported\n"); + return -EOPNOTSUPP; + } + } + /* Validate Bandwidth Sum */ for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { if (ets->tc_tsa[i] == IEEE_8021QAZ_TSA_ETS) { -- 2.53.0