From mboxrd@z Thu Jan 1 00:00:00 1970 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 96102C43334 for ; Mon, 6 Jun 2022 18:03:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230384AbiFFSDd (ORCPT ); Mon, 6 Jun 2022 14:03:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46636 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230057AbiFFSDc (ORCPT ); Mon, 6 Jun 2022 14:03:32 -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 A513019FF6C; Mon, 6 Jun 2022 11:03:30 -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=0QdeZQpzPFKxooAPc4/wcd9vahVJt/ODCSvM5mr14K4=; b=gfqTlQEHt9thR3u/9y+vj2JWSuKlepZwtpG02Q9dZ7rIO1ysHeK0fGmBfSVUu2 3C8SLKrv9dSOzljTCUU/GG5o83fPsh0dVwdrhCUp23ag3TKLBPjIyNjZV30vHI KFAsdhCxCedbecZd1rwGD4e5dGzJ0vm6vxR9Fxn4fCbf3Gc= Received: from sc9-mailhost1.vmware.com (10.113.161.71) by EX-PRD-EDGE01.vmware.com (10.188.245.6) with Microsoft SMTP Server id 15.1.2308.20; Mon, 6 Jun 2022 11:03:09 -0700 Received: from htb-1n-eng-dhcp122.eng.vmware.com (unknown [10.20.114.216]) by sc9-mailhost1.vmware.com (Postfix) with ESMTP id 1FDB0202A8; Mon, 6 Jun 2022 11:03:24 -0700 (PDT) Received: by htb-1n-eng-dhcp122.eng.vmware.com (Postfix, from userid 0) id 13C32AA1E5; Mon, 6 Jun 2022 11:03:24 -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 net-next 0/8] vmxnet3: upgrade to version 7 Date: Mon, 6 Jun 2022 11:03:06 -0700 Message-ID: <20220606180316.27793-1-doshir@vmware.com> X-Mailer: git-send-email 2.11.0 MIME-Version: 1.0 Content-Type: text/plain Received-SPF: None (EX-PRD-EDGE01.vmware.com: doshir@vmware.com does not designate permitted sender hosts) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.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. 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(-) -- 2.11.0