From patchwork Thu May 6 23:36:15 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stefan Metzmacher X-Patchwork-Id: 12243635 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C3F51C433B4 for ; Thu, 6 May 2021 23:37:58 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9D1AF61164 for ; Thu, 6 May 2021 23:37:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232803AbhEFXi4 (ORCPT ); Thu, 6 May 2021 19:38:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56986 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232790AbhEFXi4 (ORCPT ); Thu, 6 May 2021 19:38:56 -0400 Received: from hr2.samba.org (hr2.samba.org [IPv6:2a01:4f8:192:486::2:0]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 33A48C061574 for ; Thu, 6 May 2021 16:37:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=samba.org; s=42; h=Message-Id:Date:Cc:To:From; bh=4ghGPwbtdUNVmzIv9YdNxgZyOiZxvzy9M884OuRyLjg=; b=zEEJQ2tzQ4wWoZ1dZc3wYvIo/D noJLphrg2jHEy9jq1wb+SGbEhpjHr4DM6uAHKRpfD+DoGHZbH4b6I0rJnvkSFJXk9/WqoZH/CZNIf ZNguuFoaWDOEr02GeQ28BrLccKVbCQHqL9q/zn61rRAbqUGmyYI5x2n4WpG2WQCFXvcjnz11+HM3A PvrIucwqDiFGp0bIBjX4Ztqe8mC52euBrft5lnq0g+sUrxrbT5kBEzv82uxtCR95oxgdJ9CUnLJrX UyeOXDTB365zby+ccreCp5OVtiO8VCGuH9QDRfDxipixet8rCBlbFkTH4L591cKeyP6R2ma1KGHKi F6o4QMlEO3IzkMXkuZnz7CvIaWuY8liyHFgaUwmnNu1QFuUlkLvqTRK93wt34+3M77EMLyNfe85ca f/Z+8GdImG4+NPaRP0czkh/ZM9TjqJWmsmv3D+roz0otvAhD0v13nQJ6zGIogHfX0xJXfqYi7zrr5 HdJF4iuM/NOpQuo1vjnejyVQ; Received: from [127.0.0.2] (localhost [127.0.0.1]) by hr2.samba.org with esmtpsa (TLS1.3:ECDHE_RSA_CHACHA20_POLY1305:256) (Exim) id 1lenZ5-0004KC-87; Thu, 06 May 2021 23:37:55 +0000 From: Stefan Metzmacher To: Bernard Metzler Cc: linux-rdma@vger.kernel.org, Stefan Metzmacher Subject: [PATCH 09/31] rdma/siw: use __siw_cep_terminate_upcall() for SIW_CM_WORK_PEER_CLOSE Date: Fri, 7 May 2021 01:36:15 +0200 Message-Id: <8cf78b479cca333caf82eca812d421c61675d776.1620343860.git.metze@samba.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org It's easier to have generic logic in just one place. Fixes: 6c52fdc244b5 ("rdma/siw: connection management") Signed-off-by: Stefan Metzmacher Cc: Bernard Metzler Cc: linux-rdma@vger.kernel.org --- drivers/infiniband/sw/siw/siw_cm.c | 89 +++++++++++++++++------------- 1 file changed, 50 insertions(+), 39 deletions(-) diff --git a/drivers/infiniband/sw/siw/siw_cm.c b/drivers/infiniband/sw/siw/siw_cm.c index b7e7f637bd03..5338be450285 100644 --- a/drivers/infiniband/sw/siw/siw_cm.c +++ b/drivers/infiniband/sw/siw/siw_cm.c @@ -110,26 +110,67 @@ static void siw_socket_disassoc(struct socket *s) static void __siw_cep_terminate_upcall(struct siw_cep *cep, int reply_status) { - if (cep->qp && cep->qp->term_info.valid) - siw_send_terminate(cep->qp); + bool suspended = false; + + if (cep->qp) { + struct siw_qp *qp = cep->qp; + + if (qp->term_info.valid) + siw_send_terminate(qp); + + if (qp->rx_stream.rx_suspend || qp->tx_ctx.tx_suspend) + suspended = true; + } else { + suspended = true; + } switch (cep->state) { case SIW_EPSTATE_AWAIT_MPAREP: + /* + * MPA reply not received, but connection drop, + * or timeout. + */ siw_cm_upcall(cep, IW_CM_EVENT_CONNECT_REPLY, reply_status); break; case SIW_EPSTATE_RDMA_MODE: + /* + * NOTE: IW_CM_EVENT_DISCONNECT is given just + * to transition IWCM into CLOSING. + */ + WARN(!suspended, "SIW_EPSTATE_RDMA_MODE called without suspended\n"); + siw_cm_upcall(cep, IW_CM_EVENT_DISCONNECT, 0); siw_cm_upcall(cep, IW_CM_EVENT_CLOSE, 0); break; + case SIW_EPSTATE_RECVD_MPAREQ: + /* + * Wait for the ulp/CM to call accept/reject + */ + siw_dbg_cep(cep, "mpa req recvd, wait for ULP\n"); + WARN(!suspended, "SIW_EPSTATE_RECVD_MPAREQ called without suspended\n"); + break; + + case SIW_EPSTATE_AWAIT_MPAREQ: + /* + * Socket close before MPA request received. + */ + siw_dbg_cep(cep, "no mpareq: drop listener\n"); + if (cep->listen_cep) + siw_cep_put(cep->listen_cep); + cep->listen_cep = NULL; + break; + case SIW_EPSTATE_IDLE: case SIW_EPSTATE_LISTENING: case SIW_EPSTATE_CONNECTING: - case SIW_EPSTATE_AWAIT_MPAREQ: - case SIW_EPSTATE_RECVD_MPAREQ: case SIW_EPSTATE_CLOSED: default: + /* + * for other states there is no connection + * known to the IWCM. + */ break; } } @@ -1077,41 +1118,11 @@ static void siw_cm_work_handler(struct work_struct *w) break; case SIW_CM_WORK_PEER_CLOSE: - if (cep->cm_id) { - if (cep->state == SIW_EPSTATE_AWAIT_MPAREP) { - /* - * MPA reply not received, but connection drop - */ - siw_cm_upcall(cep, IW_CM_EVENT_CONNECT_REPLY, - -ECONNRESET); - } else if (cep->state == SIW_EPSTATE_RDMA_MODE) { - /* - * NOTE: IW_CM_EVENT_DISCONNECT is given just - * to transition IWCM into CLOSING. - */ - siw_cm_upcall(cep, IW_CM_EVENT_DISCONNECT, 0); - siw_cm_upcall(cep, IW_CM_EVENT_CLOSE, 0); - } - /* - * for other states there is no connection - * known to the IWCM. - */ - } else { - if (cep->state == SIW_EPSTATE_RECVD_MPAREQ) { - /* - * Wait for the ulp/CM to call accept/reject - */ - siw_dbg_cep(cep, - "mpa req recvd, wait for ULP\n"); - } else if (cep->state == SIW_EPSTATE_AWAIT_MPAREQ) { - /* - * Socket close before MPA request received. - */ - siw_dbg_cep(cep, "no mpareq: drop listener\n"); - siw_cep_put(cep->listen_cep); - cep->listen_cep = NULL; - } - } + /* + * Peer closed the connection: TCP_CLOSE* + */ + __siw_cep_terminate_upcall(cep, -ECONNRESET); + release_cep = 1; break;