From patchwork Wed Jun 8 03:23:45 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ronak Doshi X-Patchwork-Id: 12872871 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AA4BCC433EF for ; Wed, 8 Jun 2022 05:43:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234153AbiFHFnD (ORCPT ); Wed, 8 Jun 2022 01:43:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35396 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233906AbiFHFlR (ORCPT ); Wed, 8 Jun 2022 01:41:17 -0400 Received: from EX-PRD-EDGE01.vmware.com (ex-prd-edge01.vmware.com [208.91.3.33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CE27D408F12; Tue, 7 Jun 2022 20:24:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; s=s1024; d=vmware.com; h=from:to:cc:subject:date:message-id:mime-version:content-type; bh=1BUi8d5EMlZl/6FL5lU4CcT+7fh78Kg9w0myO9YPw44=; b=t/YdP0N7G0KLNXkFy7MZlPc94BdVX3mEXUKsA2yVexppkt0Mw3L6uDXLeMkNe2 cc5J71eRmbmSJvRLGn4ID4UHWJeFrP620CogO8D3oGJoJ8D1eVGQ+m2SLZ/LyE cgoeZxoo52l/odIOEzM6KrVCBxH6CSEm3nJc2rvCW5MV5u4= Received: from sc9-mailhost3.vmware.com (10.113.161.73) by EX-PRD-EDGE01.vmware.com (10.188.245.6) with Microsoft SMTP Server id 15.1.2308.20; Tue, 7 Jun 2022 20:23:42 -0700 Received: from htb-1n-eng-dhcp122.eng.vmware.com (unknown [10.20.114.216]) by sc9-mailhost3.vmware.com (Postfix) with ESMTP id CF895202DC; Tue, 7 Jun 2022 20:23:57 -0700 (PDT) Received: by htb-1n-eng-dhcp122.eng.vmware.com (Postfix, from userid 0) id C87B3AA454; Tue, 7 Jun 2022 20:23:57 -0700 (PDT) From: Ronak Doshi To: CC: Ronak Doshi , VMware PV-Drivers Reviewers , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , open list Subject: [PATCH v3 net-next 0/8] vmxnet3: upgrade to version 7 Date: Tue, 7 Jun 2022 20:23:45 -0700 Message-ID: <20220608032353.964-1-doshir@vmware.com> X-Mailer: git-send-email 2.11.0 MIME-Version: 1.0 Received-SPF: None (EX-PRD-EDGE01.vmware.com: doshir@vmware.com does not designate permitted sender hosts) Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org vmxnet3 emulation has recently added several new features including support for uniform passthrough(UPT). To make UPT work vmxnet3 has to be enhanced as per the new specification. This patch series extends the vmxnet3 driver to leverage these new features. 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 7. - 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 7 comparison and updates Copyright information. Patch 2: This patch adds new capability registers to fine control enablement of individual features based on emulation and passthrough. Patch 3: This patch adds support for large passthrough BAR register. Patch 4: This patch adds support for out of order rx completion processing. Patch 5: This patch introduces new command to set ring buffer sizes to pass this information to the hardware. Patch 6: For better performance, hardware has a requirement to limit number of TSO descriptors. This patch adds that support. Patch 7: With vmxnet3 version 7, new descriptor fields are used to indicate encapsulation offload. Patch 8: With all vmxnet3 version 7 changes incorporated in the vmxnet3 driver, with this patch, the driver can configure emulation to run at vmxnet3 version 7. Changes in v2->v3: - use correct byte ordering for ringBufSize Changes in v2: - use local rss_fields variable for the rss capability checks in patch 2 Ronak Doshi (8): vmxnet3: prepare for version 7 changes vmxnet3: add support for capability registers vmxnet3: add support for large passthrough BAR register vmxnet3: add support for out of order rx completion vmxnet3: add command to set ring buffer sizes vmxnet3: limit number of TXDs used for TSO packet vmxnet3: use ext1 field to indicate encapsulated packet vmxnet3: update to version 7 drivers/net/vmxnet3/Makefile | 2 +- drivers/net/vmxnet3/upt1_defs.h | 2 +- drivers/net/vmxnet3/vmxnet3_defs.h | 80 ++++++++-- drivers/net/vmxnet3/vmxnet3_drv.c | 291 ++++++++++++++++++++++++++++++---- drivers/net/vmxnet3/vmxnet3_ethtool.c | 116 ++++++++++++-- drivers/net/vmxnet3/vmxnet3_int.h | 24 ++- 6 files changed, 457 insertions(+), 58 deletions(-)