From owner-svn-src-stable-8@FreeBSD.ORG Wed Jul 10 01:33:50 2013 Return-Path: Delivered-To: svn-src-stable-8@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id 17A4EF11; Wed, 10 Jul 2013 01:33:50 +0000 (UTC) (envelope-from yongari@FreeBSD.org) Received: from svn.freebsd.org (svn.freebsd.org [IPv6:2001:1900:2254:2068::e6a:0]) by mx1.freebsd.org (Postfix) with ESMTP id E3DD51AE9; Wed, 10 Jul 2013 01:33:49 +0000 (UTC) Received: from svn.freebsd.org ([127.0.1.70]) by svn.freebsd.org (8.14.7/8.14.7) with ESMTP id r6A1Xn5a025295; Wed, 10 Jul 2013 01:33:49 GMT (envelope-from yongari@svn.freebsd.org) Received: (from yongari@localhost) by svn.freebsd.org (8.14.7/8.14.5/Submit) id r6A1Xnkc025293; Wed, 10 Jul 2013 01:33:49 GMT (envelope-from yongari@svn.freebsd.org) Message-Id: <201307100133.r6A1Xnkc025293@svn.freebsd.org> From: Pyun YongHyeon Date: Wed, 10 Jul 2013 01:33:49 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r253131 - stable/8/sys/dev/bge X-SVN-Group: stable-8 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-stable-8@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: SVN commit messages for only the 8-stable src tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 10 Jul 2013 01:33:50 -0000 Author: yongari Date: Wed Jul 10 01:33:49 2013 New Revision: 253131 URL: http://svnweb.freebsd.org/changeset/base/253131 Log: MFC r252404: Fix triggering false watchdog timeout as done in bce(4) when controller is in PAUSE state. Modified: stable/8/sys/dev/bge/if_bge.c stable/8/sys/dev/bge/if_bgereg.h Directory Properties: stable/8/sys/ (props changed) stable/8/sys/dev/ (props changed) stable/8/sys/dev/bge/ (props changed) Modified: stable/8/sys/dev/bge/if_bge.c ============================================================================== --- stable/8/sys/dev/bge/if_bge.c Wed Jul 10 01:32:58 2013 (r253130) +++ stable/8/sys/dev/bge/if_bge.c Wed Jul 10 01:33:49 2013 (r253131) @@ -5309,7 +5309,7 @@ bge_start_locked(struct ifnet *ifp) /* * Set a timeout in case the chip goes out to lunch. */ - sc->bge_timer = 5; + sc->bge_timer = BGE_TX_TIMEOUT; } } @@ -5814,12 +5814,40 @@ static void bge_watchdog(struct bge_softc *sc) { struct ifnet *ifp; + uint32_t status; BGE_LOCK_ASSERT(sc); if (sc->bge_timer == 0 || --sc->bge_timer) return; + /* If pause frames are active then don't reset the hardware. */ + if ((CSR_READ_4(sc, BGE_RX_MODE) & BGE_RXMODE_FLOWCTL_ENABLE) != 0) { + status = CSR_READ_4(sc, BGE_RX_STS); + if ((status & BGE_RXSTAT_REMOTE_XOFFED) != 0) { + /* + * If link partner has us in XOFF state then wait for + * the condition to clear. + */ + CSR_WRITE_4(sc, BGE_RX_STS, status); + sc->bge_timer = BGE_TX_TIMEOUT; + return; + } else if ((status & BGE_RXSTAT_RCVD_XOFF) != 0 && + (status & BGE_RXSTAT_RCVD_XON) != 0) { + /* + * If link partner has us in XOFF state then wait for + * the condition to clear. + */ + CSR_WRITE_4(sc, BGE_RX_STS, status); + sc->bge_timer = BGE_TX_TIMEOUT; + return; + } + /* + * Any other condition is unexpected and the controller + * should be reset. + */ + } + ifp = sc->bge_ifp; if_printf(ifp, "watchdog timeout -- resetting\n"); Modified: stable/8/sys/dev/bge/if_bgereg.h ============================================================================== --- stable/8/sys/dev/bge/if_bgereg.h Wed Jul 10 01:32:58 2013 (r253130) +++ stable/8/sys/dev/bge/if_bgereg.h Wed Jul 10 01:33:49 2013 (r253131) @@ -2928,6 +2928,7 @@ struct bge_dmamap_arg { #define BGE_HWREV_TIGON_II 0x02 #define BGE_TIMEOUT 100000 #define BGE_TXCONS_UNSET 0xFFFF /* impossible value */ +#define BGE_TX_TIMEOUT 5 struct bge_bcom_hack { int reg;