From patchwork Thu Apr 17 07:57:07 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Erni Sri Satya Vennela X-Patchwork-Id: 14055079 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 706AC21CC7B; Thu, 17 Apr 2025 07:57:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=13.77.154.182 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744876638; cv=none; b=oLTtBJdOBxIsIUlnhQRd9C3YJPwAhTyCn4dmzmyBggPiVLoKBSwEAYq5yrDwsJrMJqj3T9QvqxBLFSYwcgb5ctVum4/bHoT7ltUGPuRhBwKs5YZEbZDqUBaUU0203ZCg9egG3lB+uxKNoT9aDKd1kNnNML7kJptZ0RASmTUVmbU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744876638; c=relaxed/simple; bh=13xHlsY61EkSejsLPZ23IxACNJ0NV+gOvYVIBuw6xfU=; h=From:To:Subject:Date:Message-Id; b=tqCCLPzHFw/8TvVqVLVapNY1ihFAJghqSxVFkYbpQTz0owAeAZ9TuTQLYXZI/KpdzVJj59kzwcdKc74RPwgu4pXXkWerO/inD5jsElQEQl6r0KmVZvVUBvPyfdNNLyy1WJR8j3bREyAbPRHoHKTTBd3zBFZz1tWMV/AG9e+NDME= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com; spf=pass smtp.mailfrom=linux.microsoft.com; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b=PbdFh24m; arc=none smtp.client-ip=13.77.154.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b="PbdFh24m" Received: by linux.microsoft.com (Postfix, from userid 1173) id F04E021199C7; Thu, 17 Apr 2025 00:57:16 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com F04E021199C7 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1744876636; bh=QCGtOoOPCkFMxU8OEWg52zg84Z5FI97+rF/DHlAjGwY=; h=From:To:Subject:Date:From; b=PbdFh24muPk1natGqOQ4k6H7jzVLFbQAeWwrG2KikkFnaG3JbA1WLfS6qkSmQQ/+7 2/DgbsYOP/orw9824sqs2QeYLsS9zZuubwpxILBhab+yHyEQnOd9ofNRj6NwukLeS4 RE45MXL+lba5uGdZCksVi0W/cWGC3YBAwjaDlTdg= From: Erni Sri Satya Vennela To: kys@microsoft.com, haiyangz@microsoft.com, wei.liu@kernel.org, decui@microsoft.com, andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, longli@microsoft.com, kotaranov@microsoft.com, horms@kernel.org, kent.overstreet@linux.dev, brett.creeley@amd.com, schakrabarti@linux.microsoft.com, ernis@linux.microsoft.com, shradhagupta@linux.microsoft.com, ssengar@linux.microsoft.com, rosenp@gmail.com, paulros@microsoft.com, linux-hyperv@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org Subject: [PATCH 0/3] net: mana: Add HTB Qdisc offload support Date: Thu, 17 Apr 2025 00:57:07 -0700 Message-Id: <1744876630-26918-1-git-send-email-ernis@linux.microsoft.com> X-Mailer: git-send-email 1.8.3.1 Precedence: bulk X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Introduce support for HTB Qdisc offload on the mana ethernet controller to enable bandwidth clamping for egress traffic. The controller offloads only one HTB leaf to support bandwidth clamping on the hardware. This involves calling the function mana_set_bw_clamp() which internally calls a HWC command to the hardware to set the speed. The minimum supported bandwidth is 100 Mbps, and only multiples of 100 Mbps are supported by the hardware. The speed will be reset to maximum bandwidth supported by the SKU, when the HTB leaf is deleted. Also add speed support in mana_get_link_ksettings to display speed in the standard port information using ethtool. This involves calling mana_query_link_config(), which internally sends a HWC command to the hardware to query speed information. Note that this feature is not supported by all hardware. Erni Sri Satya Vennela (3): net: mana: Add speed support in mana_get_link_ksettings net: mana: Add sched HTB offload support net: mana: Handle unsupported HWC commands .../net/ethernet/microsoft/mana/hw_channel.c | 4 + drivers/net/ethernet/microsoft/mana/mana_en.c | 191 ++++++++++++++++++ .../ethernet/microsoft/mana/mana_ethtool.c | 6 + include/net/mana/mana.h | 36 ++++ 4 files changed, 237 insertions(+)