From owner-svn-src-head@freebsd.org Mon Apr 25 22:00:06 2016 Return-Path: Delivered-To: svn-src-head@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id D34EDB1C81E; Mon, 25 Apr 2016 22:00:06 +0000 (UTC) (envelope-from adrian@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 mx1.freebsd.org (Postfix) with ESMTPS id 9E9621AC2; Mon, 25 Apr 2016 22:00:06 +0000 (UTC) (envelope-from adrian@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id u3PM05C3024663; Mon, 25 Apr 2016 22:00:05 GMT (envelope-from adrian@FreeBSD.org) Received: (from adrian@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id u3PM058W024662; Mon, 25 Apr 2016 22:00:05 GMT (envelope-from adrian@FreeBSD.org) Message-Id: <201604252200.u3PM058W024662@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: adrian set sender to adrian@FreeBSD.org using -f From: Adrian Chadd Date: Mon, 25 Apr 2016 22:00:05 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r298594 - head/sys/dev/iwm X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 25 Apr 2016 22:00:06 -0000 Author: adrian Date: Mon Apr 25 22:00:05 2016 New Revision: 298594 URL: https://svnweb.freebsd.org/changeset/base/298594 Log: [iwm] restart the VAP if there's a firmware panic. Always print out the firmware panic info before restarting; don't put it behind IWM_DEBUG. Submitted by: bapt Differential Revision: https://reviews.freebsd.org/D6081 Modified: head/sys/dev/iwm/if_iwm.c Modified: head/sys/dev/iwm/if_iwm.c ============================================================================== --- head/sys/dev/iwm/if_iwm.c Mon Apr 25 21:14:32 2016 (r298593) +++ head/sys/dev/iwm/if_iwm.c Mon Apr 25 22:00:05 2016 (r298594) @@ -4344,7 +4344,6 @@ iwm_intr(void *arg) handled |= (r1 & (IWM_CSR_INT_BIT_ALIVE /*| IWM_CSR_INT_BIT_SCD*/)); if (r1 & IWM_CSR_INT_BIT_SW_ERR) { -#ifdef IWM_DEBUG int i; struct ieee80211com *ic = &sc->sc_ic; struct ieee80211vap *vap = TAILQ_FIRST(&ic->ic_vaps); @@ -4364,13 +4363,21 @@ iwm_intr(void *arg) " rx ring: cur=%d\n", sc->rxq.cur); device_printf(sc->sc_dev, " 802.11 state %d\n", vap->iv_state); -#endif - device_printf(sc->sc_dev, "fatal firmware error\n"); - iwm_stop(sc); - rv = 1; - goto out; + /* Don't stop the device; just do a VAP restart */ + IWM_UNLOCK(sc); + + if (vap == NULL) { + printf("%s: null vap\n", __func__); + return; + } + device_printf(sc->sc_dev, "%s: controller panicked, iv_state = %d; " + "restarting\n", __func__, vap->iv_state); + + /* XXX TODO: turn this into a callout/taskqueue */ + ieee80211_restart_all(ic); + return; } if (r1 & IWM_CSR_INT_BIT_HW_ERR) {