From patchwork Mon Apr 18 20:14:15 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 8874861 Return-Path: X-Original-To: patchwork-linux-rdma@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 97FD3BF29F for ; Mon, 18 Apr 2016 20:14:38 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id CC69720125 for ; Mon, 18 Apr 2016 20:14:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 90BC5200ED for ; Mon, 18 Apr 2016 20:14:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751572AbcDRUOf (ORCPT ); Mon, 18 Apr 2016 16:14:35 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:41658 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751560AbcDRUOf (ORCPT ); Mon, 18 Apr 2016 16:14:35 -0400 Received: from [74.203.127.200] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.80.1 #2 (Red Hat Linux)) id 1asFZ2-0003em-M6; Mon, 18 Apr 2016 20:14:32 +0000 From: Christoph Hellwig To: dledford@redhat.com Cc: bart.vanassche@sandisk.com, swise@opengridcomputing.com, sagi@grimberg.me, linux-rdma@vger.kernel.org, target-devel@vger.kernel.org Subject: [PATCH 04/12] IB/core: add a helper to check for READ WITH INVALIDATE support Date: Mon, 18 Apr 2016 16:14:15 -0400 Message-Id: <1461010463-6603-5-git-send-email-hch@lst.de> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1461010463-6603-1-git-send-email-hch@lst.de> References: <1461010463-6603-1-git-send-email-hch@lst.de> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.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=-7.9 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 Tested-by: Steve Wise Reviewed-by: Steve Wise Reviewed-by: Sagi Grimberg --- include/rdma/ib_verbs.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 24d0d82..9e8616a 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -2318,6 +2318,18 @@ 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_cap_read_inv(struct ib_device *dev, u32 port_num) +{ + /* + * iWarp drivers must support READ W/ INVALIDATE. No other protocol + * has support for 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);