From patchwork Sat Feb 27 18:10:21 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 8444871 Return-Path: X-Original-To: patchwork-linux-rdma@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id D2F1E9F2F0 for ; Sat, 27 Feb 2016 18:10:43 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id EE986203A1 for ; Sat, 27 Feb 2016 18:10:42 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1918B203C3 for ; Sat, 27 Feb 2016 18:10:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1945940AbcB0SKj (ORCPT ); Sat, 27 Feb 2016 13:10:39 -0500 Received: from casper.infradead.org ([85.118.1.10]:60813 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756707AbcB0SKh (ORCPT ); Sat, 27 Feb 2016 13:10:37 -0500 Received: from [83.175.99.196] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.85 #2 (Red Hat Linux)) id 1aZjK7-0006ve-GU; Sat, 27 Feb 2016 18:10:35 +0000 From: Christoph Hellwig To: linux-rdma@vger.kernel.org Cc: swise@opengridcomputing.com, sagig@mellanox.com, target-devel@vger.kernel.org Subject: [PATCH 03/13] IB/core: add a helper to check for READ WITH INVALIDATE support Date: Sat, 27 Feb 2016 19:10:21 +0100 Message-Id: <1456596631-19418-4-git-send-email-hch@lst.de> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1456596631-19418-1-git-send-email-hch@lst.de> References: <1456596631-19418-1-git-send-email-hch@lst.de> X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Christoph Hellwig --- include/rdma/ib_verbs.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 2114929..267f11e 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -2286,6 +2286,15 @@ static inline bool rdma_cap_roce_gid_table(const struct ib_device *device, device->add_gid && device->del_gid; } +/* + * Check if the device supports READ W/ INVALIDATE. + */ +static inline bool rdma_has_read_invalidate(struct ib_device *dev, u32 port_num) +{ + /* iWarp requires READ W/ INVALIDATE. No other device supports it yet */ + return rdma_protocol_iwarp(dev, port_num); +} + int ib_query_gid(struct ib_device *device, u8 port_num, int index, union ib_gid *gid, struct ib_gid_attr *attr);