From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from EX13-EDG-OU-001.vmware.com (ex13-edg-ou-001.vmware.com [208.91.0.189]) by dpdk.org (Postfix) with ESMTP id BC4A15A44 for ; Sat, 25 Feb 2017 23:00:03 +0100 (CET) Received: from sc9-mailhost3.vmware.com (10.113.161.73) by EX13-EDG-OU-001.vmware.com (10.113.208.155) with Microsoft SMTP Server id 15.0.1156.6; Sat, 25 Feb 2017 13:59:27 -0800 Received: from shri-linux.eng.vmware.com (shri-linux.eng.vmware.com [10.33.72.16]) by sc9-mailhost3.vmware.com (Postfix) with ESMTP id 7D695402D2; Sat, 25 Feb 2017 13:59:57 -0800 (PST) From: Shrikrishna Khare To: CC: , Shrikrishna Khare Date: Sat, 25 Feb 2017 13:59:42 -0800 Message-ID: <1488059989-6930-1-git-send-email-skhare@vmware.com> X-Mailer: git-send-email 2.6.2 MIME-Version: 1.0 Content-Type: text/plain Received-SPF: None (EX13-EDG-OU-001.vmware.com: skhare@vmware.com does not designate permitted sender hosts) Subject: [dpdk-dev] [PATCH 0/7] vmxnet3: upgrade to version 3 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 25 Feb 2017 22:00:04 -0000 vmxnet3 emulation has recently added several new features which includes support for new commands the driver can issue to emulation, change in descriptor fields etc. 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 3. - 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: Trivial cleanup in preparation of version 3 changes. Patch 2: This patch introduces generalized command interface which allows for easily adding new commands that vmxnet3 driver can issue to the emulation. Further patches in this series make use of this facility. Patch 3: Transmit data ring buffer is used to copy packet headers or small packets. It is a fixed size buffer. This patch extends the driver to allow variable sized transmit data ring buffer. Patch 4: This patch introduces receive data ring buffer - a set of small sized buffers that are always mapped by the emulation. This avoids memory mapping/unmapping overhead for small packets. Patch 5: This patch adds reserved commands. Patch 6: In vmxnet3 version 3, the emulation added support for the vmxnet3 driver to communicate information about the memory regions the driver will use for rx/tx buffers. This patch exposes related commands to the driver. The driver is also extended to make use of this feaeture. Patch 7: With all vmxnet3 version 3 changes incorporated in the vmxnet3 driver, with this patch, the driver can configure emulation to run at vmxnet3 version 3. Shrikrishna Khare (7): vmxnet3: prepare for version 3 changes vmxnet3: introduce generalized command interface to configure the device vmxnet3: allow variable length transmit data ring buffer vmxnet3: add receive data ring support vmxnet3: add reserved version 3 command vmxnet3: introduce command to register memory region vmxnet3: update to version 3 drivers/net/vmxnet3/base/vmxnet3_defs.h | 85 ++++++++++++++++-- drivers/net/vmxnet3/vmxnet3_ethdev.c | 154 +++++++++++++++++++++++++++++++- drivers/net/vmxnet3/vmxnet3_ethdev.h | 14 +++ drivers/net/vmxnet3/vmxnet3_ring.h | 21 +++++ drivers/net/vmxnet3/vmxnet3_rxtx.c | 45 ++++++++-- 5 files changed, 304 insertions(+), 15 deletions(-) -- 2.6.2