From patchwork Tue May 28 23:39:02 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ronak Doshi X-Patchwork-Id: 13677582 Received: from EX-PRD-EDGE02.vmware.com (ex-prd-edge02.vmware.com [208.91.3.34]) (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 50258140368; Tue, 28 May 2024 23:54:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=208.91.3.34 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716940488; cv=none; b=iRhKYyPPySpgxVhSrnA+tX9j4n4XxUpLy99tDJqYy7QageTaqEBdikMofnj3KfgE1ckVe6KSSjtoCvfVRyQLMFkwrUxs+mHqSgr+s6qy328aoL5yrvrqcldPh+48Watfnenh4iiJFzQKqXthtdl7p9C8c/YkkzkDgjYEIrFkXSU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716940488; c=relaxed/simple; bh=iScNUZYj9Hl1o8qjxZ4rUlNZplDHdR3KDhNBZxjSiWI=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=JEoO0sm9ZGAVFyTDGafPzsqU5/XzUdcbM+v3Zlq+PuaCN9NmtWxLlHaExcEhTD8Beu2IJJm12+iDQRA999IGhEdTJC+ViXe2lVc3sk1ZhC+MIon21EDC6fliEC1Xt/d3jM/0ifvV6LfIV3D+bksGjqG6efb+KNp2V9m+4D+UKwg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=broadcom.com; spf=pass smtp.mailfrom=vmware.com; arc=none smtp.client-ip=208.91.3.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=broadcom.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=vmware.com Received: from sc9-mailhost1.vmware.com (10.113.161.71) by EX-PRD-EDGE02.vmware.com (10.188.245.7) with Microsoft SMTP Server id 15.1.2375.34; Tue, 28 May 2024 16:38:58 -0700 Received: from htb-1n-eng-dhcp122.eng.vmware.com (unknown [10.172.6.252]) by sc9-mailhost1.vmware.com (Postfix) with ESMTP id BBACD201E4; Tue, 28 May 2024 16:39:17 -0700 (PDT) Received: by htb-1n-eng-dhcp122.eng.vmware.com (Postfix, from userid 0) id B54C6B04C9; Tue, 28 May 2024 16:39:17 -0700 (PDT) From: Ronak Doshi To: CC: Ronak Doshi , Broadcom internal kernel review list , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , open list Subject: [PATCH v1 net-next 0/4] vmxnet3: upgrade to version 9 Date: Tue, 28 May 2024 16:39:02 -0700 Message-ID: <20240528233907.2674-1-ronak.doshi@broadcom.com> X-Mailer: git-send-email 2.11.0 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Received-SPF: SoftFail (EX-PRD-EDGE02.vmware.com: domain of transitioning ronak.doshi@broadcom.com discourages use of 10.113.161.71 as permitted sender) X-Patchwork-Delegate: kuba@kernel.org vmxnet3 emulation has recently added timestamping feature which allows the hypervisor (ESXi) to calculate latency from guest virtual NIC driver to all the way up to the physical NIC. This patch series extends vmxnet3 driver to leverage these new feature. Compatibility is maintained using existing vmxnet3 versioning mechanism as follows: - new features added to vmxnet3 emulation are associated with new vmxnet3 version viz. vmxnet3 version 9. - emulation advertises all the versions it supports to the driver. - during initialization, vmxnet3 driver picks the highest version number supported by both the emulation and the driver and configures emulation to run at that version. In particular, following changes are introduced: Patch 1: This patch introduces utility macros for vmxnet3 version 9 comparison and updates Copyright information. Patch 2: This patch adds support to timestamp the packets so as to allow latency measurement in the ESXi. Patch 3: This patch adds support to disable certain offloads on the device based on the request specified by the user in the VM configuration. Patch 4: With all vmxnet3 version 9 changes incorporated in the vmxnet3 driver, with this patch, the driver can configure emulation to run at vmxnet3 version 9. Changes in v1: - make latency measurement and rdpmc read x86 specific in patch 2. - use BIT macro. Ronak Doshi (4): vmxnet3: prepare for version 9 changes vmxnet3: add latency measurement support in vmxnet3 vmxnet3: add command to allow disabling of offloads vmxnet3: update to version 9 drivers/net/vmxnet3/Makefile | 2 +- drivers/net/vmxnet3/vmxnet3_defs.h | 61 +++++++++- drivers/net/vmxnet3/vmxnet3_drv.c | 222 +++++++++++++++++++++++++++------- drivers/net/vmxnet3/vmxnet3_ethtool.c | 10 +- drivers/net/vmxnet3/vmxnet3_int.h | 33 ++++- 5 files changed, 279 insertions(+), 49 deletions(-)