From patchwork Mon Oct 2 02:30:08 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Long Li X-Patchwork-Id: 820331 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-cifs-owner@vger.kernel.org; receiver=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3y55nR3qwGz9t48 for ; Mon, 2 Oct 2017 13:33:31 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752173AbdJBCdE (ORCPT ); Sun, 1 Oct 2017 22:33:04 -0400 Received: from a2nlsmtp01-04.prod.iad2.secureserver.net ([198.71.225.38]:55834 "EHLO a2nlsmtp01-04.prod.iad2.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752186AbdJBCb7 (ORCPT ); Sun, 1 Oct 2017 22:31:59 -0400 Received: from linuxonhyperv.com ([107.180.71.197]) by : HOSTING RELAY : with SMTP id yqVBdQBU0alZvyqVBdba2M; Sun, 01 Oct 2017 19:30:58 -0700 x-originating-ip: 107.180.71.197 Received: from longli by linuxonhyperv.com with local (Exim 4.89) (envelope-from ) id 1dyqVB-0000wU-4B; Sun, 01 Oct 2017 19:30:37 -0700 From: Long Li To: Steve French , linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, Christoph Hellwig , Tom Talpey , Matthew Wilcox Cc: Long Li Subject: [Patch v4 00/22] CIFS: Implement SMBDirect Date: Sun, 1 Oct 2017 19:30:08 -0700 Message-Id: <20171002023030.3582-1-longli@exchange.microsoft.com> X-Mailer: git-send-email 2.14.1 X-CMAE-Envelope: MS4wfM6PQzR+80r77YOa+wUr440otwCzTP8BS/C53YwbeLuGNLPfkZxawUqaUPuBqVzT8yToXrNdD0Y/G/XfbHU60kxCHjd3QH6xx1Dw+ZY8IIWGbW8RXMTZ mAOuwMVzQaLTMeqegXj94v63PJe+zTZ1D0ZgrSg6apb2o6CLKumw0ntIFRNNYHf5MFh7FBYShmz8nv+IaBkZk/+17HuVjOgR2zzA/ElojWcyAilA8s8VgUS9 5T4AnHMoUDl8aUIlO0SEV/C5Dl3OABE++9x7cvYWPYaToVbpORa7uEA9lfhBBGDCZMWUkTGr3my/j1BGqU/+cyYVpKx9hdMszD0SX5YfoFb+TS2YxFwsUjQg 0B8oiF7PAlgTxosC+KFNjUa0y+JR1GqNmMvNp0ggQMoUTwZafIoyXONEw9YO18Iq35Ju3lHiLZZdh8Qv9qnaxOUBIHsfryWlvvBVBW9J8gOnOyvscmZU3TJF UE1UXemHk7cHidPq Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org From: Long Li Starting with SMB2 dialect 3.0, Microsoft introduced SMBDirect transport protocol for transferring upper layer (SMB2) payload over RDMA via Infiniband, RoCE or iWARP. The prococol is published in [MS-SMBD] (https://msdn.microsoft.com/en-us/library/hh536346.aspx). Patch v2 added RDMA read/write via memory registration, and addressed feedbacks on v1. Patch v3 improved performance by introducing an additional queue for handling empty packets and reducing lock contention on IRQ path. Also added light weight profiling by reading TSC and addressed feedbacks on v2. Patch v4 fixed connectivity issues with iWAPR devices and addressed comments. Long Li (22): CIFS: SMBD: Add SMBDirect protocol initial values and constants CIFS: SMBD: Establish SMBDirect connection CIFS: SMBD: export protocol initial values CIFS: SMBD: Add rdma mount option CIFS: SMBD: Implement function to create a SMBDirect connection CIFS: SMBD: Upper layer connects to SMBDirect session CIFS: SMBD: Implement function to reconnect to a SMBDirect transport CIFS: SMBD: Upper layer reconnects to SMBDirect session CIFS: SMBD: Implement function to destroy a SMBDirect connection CIFS: SMBD: Upper layer destroys SMBDirect session on shutdown or umount CIFS: SMBD: Set SMBDirect maximum read or write size for I/O CIFS: SMBD: Implement function to receive data via RDMA receive CIFS: SMBD: Upper layer receives data via RDMA receive CIFS: SMBD: Implement function to send data via RDMA send CIFS: SMBD: Upper layer sends data via RDMA send CIFS: SMBD: Fix the definition for SMB2_CHANNEL_RDMA_V1_INVALIDATE CIFS: SMBD: Implement RDMA memory registration CIFS: SMBD: Upper layer performs SMB write via RDMA read through memory registration CIFS: SMBD: Add parameter rdata to smb2_new_read_req CIFS: SMBD: Read correct returned data length for RDMA write (SMB read) I/O CIFS: SMBD: Upper layer performs SMB read via RDMA write through memory registration CIFS: SMBD: Add SMBDirect debug counters fs/cifs/Makefile | 2 +- fs/cifs/cifs_debug.c | 159 +++ fs/cifs/cifsfs.c | 2 + fs/cifs/cifsglob.h | 17 +- fs/cifs/cifssmb.c | 10 +- fs/cifs/connect.c | 46 +- fs/cifs/file.c | 10 + fs/cifs/smb1ops.c | 2 +- fs/cifs/smb2ops.c | 21 +- fs/cifs/smb2pdu.c | 114 ++- fs/cifs/smb2pdu.h | 2 +- fs/cifs/smbdirect.c | 2651 ++++++++++++++++++++++++++++++++++++++++++++++++++ fs/cifs/smbdirect.h | 325 +++++++ fs/cifs/transport.c | 7 + 14 files changed, 3348 insertions(+), 20 deletions(-) create mode 100644 fs/cifs/smbdirect.c create mode 100644 fs/cifs/smbdirect.h