From owner-svn-src-all@freebsd.org Wed May 8 10:42:06 2019 Return-Path: Delivered-To: svn-src-all@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 4021715A53BF; Wed, 8 May 2019 10:42:06 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id D79B4682F2; Wed, 8 May 2019 10:42:05 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id CD62C4ABD; Wed, 8 May 2019 10:42:05 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x48Ag5GB049227; Wed, 8 May 2019 10:42:05 GMT (envelope-from hselasky@FreeBSD.org) Received: (from hselasky@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x48Ag57K049226; Wed, 8 May 2019 10:42:05 GMT (envelope-from hselasky@FreeBSD.org) Message-Id: <201905081042.x48Ag57K049226@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: hselasky set sender to hselasky@FreeBSD.org using -f From: Hans Petter Selasky Date: Wed, 8 May 2019 10:42:05 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r347278 - head/sys/ofed/drivers/infiniband/ulp/ipoib X-SVN-Group: head X-SVN-Commit-Author: hselasky X-SVN-Commit-Paths: head/sys/ofed/drivers/infiniband/ulp/ipoib X-SVN-Commit-Revision: 347278 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: D79B4682F2 X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org X-Spamd-Result: default: False [-2.98 / 15.00]; local_wl_from(0.00)[FreeBSD.org]; NEURAL_HAM_MEDIUM(-1.00)[-0.999,0]; NEURAL_HAM_SHORT(-0.98)[-0.980,0]; ASN(0.00)[asn:11403, ipnet:2610:1c1:1::/48, country:US]; NEURAL_HAM_LONG(-1.00)[-1.000,0] X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 08 May 2019 10:42:06 -0000 Author: hselasky Date: Wed May 8 10:42:05 2019 New Revision: 347278 URL: https://svnweb.freebsd.org/changeset/base/347278 Log: Fix endless loop in ipoib_poll(). ib_req_notify_cq may return negative value which will indicate a failure. In the case of uncorrectable error, we will end up in an endless loop. Fix that, by going to another loop with poll_more only if there is anything left to poll. Submitted by: slavash@ MFC after: 3 days Sponsored by: Mellanox Technologies Modified: head/sys/ofed/drivers/infiniband/ulp/ipoib/ipoib_ib.c Modified: head/sys/ofed/drivers/infiniband/ulp/ipoib/ipoib_ib.c ============================================================================== --- head/sys/ofed/drivers/infiniband/ulp/ipoib/ipoib_ib.c Wed May 8 10:41:44 2019 (r347277) +++ head/sys/ofed/drivers/infiniband/ulp/ipoib/ipoib_ib.c Wed May 8 10:42:05 2019 (r347278) @@ -409,7 +409,7 @@ poll_more: spin_unlock(&priv->drain_lock); if (ib_req_notify_cq(priv->recv_cq, - IB_CQ_NEXT_COMP | IB_CQ_REPORT_MISSED_EVENTS)) + IB_CQ_NEXT_COMP | IB_CQ_REPORT_MISSED_EVENTS) > 0) goto poll_more; }