From patchwork Wed Apr 12 16:26:29 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ronak Doshi X-Patchwork-Id: 126159 Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 571F04296B; Mon, 17 Apr 2023 10:15:08 +0200 (CEST) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id AEE8A41138; Mon, 17 Apr 2023 10:15:03 +0200 (CEST) Received: from EX-PRD-EDGE01.vmware.com (EX-PRD-EDGE01.vmware.com [208.91.3.33]) by mails.dpdk.org (Postfix) with ESMTP id B137B406A2 for ; Wed, 12 Apr 2023 18:26:45 +0200 (CEST) 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=fm2Ifum6ireavo95LmHAqGHnFH7GKQVZvwkts0MDhpc=; b=TmmyG3OoI2rd08iMU7zzfvg6M3oZQnwrEWlkWxpGwUSYAfuvD8Et6w1mWHSaMI 9N2n6vc7/BJPixhs1ThWjX1vIUFkMkjeLWhOVWXECPQ53WsvQv2+23a/srzw70 XPv4C60HiWywi8aosS6OY4RgZjjnMtgZ9DdxovIXDXOxrTM= 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 15.1.2375.34; Wed, 12 Apr 2023 09:26:32 -0700 Received: from htb-1n-eng-dhcp122.eng.vmware.com (unknown [10.20.114.216]) by sc9-mailhost1.vmware.com (Postfix) with ESMTP id 9EC22201E4; Wed, 12 Apr 2023 09:26:38 -0700 (PDT) Received: by htb-1n-eng-dhcp122.eng.vmware.com (Postfix, from userid 0) id 96E2FA8385; Wed, 12 Apr 2023 09:26:38 -0700 (PDT) From: Ronak Doshi To: CC: , Ronak Doshi Subject: [PATCH next 0/7] vmxnet3: upgrade to version 7 Date: Wed, 12 Apr 2023 09:26:29 -0700 Message-ID: <20230412162636.30843-1-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) X-Mailman-Approved-At: Mon, 17 Apr 2023 10:15:01 +0200 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.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 introduces new command to set ring buffer sizes to pass this information to the hardware. Patch 5: For better performance, hardware has a requirement to limit number of TSO descriptors. This patch adds that support. Patch 6: Avoid updating rxprod register when in UPT for performance reasons. Patch 7: 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 (7): vmxnet3: prepare for version 7 changes vmxnet3: add support for capability registers vmxnet3: add support for large passthrough BAR register vmxnet3: add command to set ring buffer sizes vmxnet3: limit number of TXDs used for TSO packet vmxnet3: avoid updating rxprod register frequently vmxnet3: update to version 7 drivers/net/vmxnet3/base/vmxnet3_defs.h | 74 +++++++++++++++++++--- drivers/net/vmxnet3/vmxnet3_ethdev.c | 106 +++++++++++++++++++++++++++++++- drivers/net/vmxnet3/vmxnet3_ethdev.h | 16 +++++ drivers/net/vmxnet3/vmxnet3_ring.h | 2 +- drivers/net/vmxnet3/vmxnet3_rxtx.c | 48 +++++++++++---- lib/ethdev/rte_ethdev.h | 2 + 6 files changed, 226 insertions(+), 22 deletions(-)