From owner-svn-src-all@freebsd.org Tue Sep 15 05:09:18 2015 Return-Path: Delivered-To: svn-src-all@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 424E1A03902; Tue, 15 Sep 2015 05:09:18 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2001:1900:2254:2068::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 3306A1FFB; Tue, 15 Sep 2015 05:09:18 +0000 (UTC) (envelope-from markj@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.70]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id t8F59IsC069638; Tue, 15 Sep 2015 05:09:18 GMT (envelope-from markj@FreeBSD.org) Received: (from markj@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id t8F59IhJ069637; Tue, 15 Sep 2015 05:09:18 GMT (envelope-from markj@FreeBSD.org) Message-Id: <201509150509.t8F59IhJ069637@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: markj set sender to markj@FreeBSD.org using -f From: Mark Johnston Date: Tue, 15 Sep 2015 05:09:18 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r287806 - head/sys/cam/scsi X-SVN-Group: head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.20 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: Tue, 15 Sep 2015 05:09:18 -0000 Author: markj Date: Tue Sep 15 05:09:17 2015 New Revision: 287806 URL: https://svnweb.freebsd.org/changeset/base/287806 Log: Preserve the device queue status before retrying a sense request in chdone(). Previously, the retry could clear the CAM_DEV_QFRZN bit in the CCB status, leaving the queue frozen. Submitted by: Jeff Miller Reviewed by: ken MFC after: 2 weeks Sponsored by: EMC / Isilon Storage Division Modified: head/sys/cam/scsi/scsi_ch.c Modified: head/sys/cam/scsi/scsi_ch.c ============================================================================== --- head/sys/cam/scsi/scsi_ch.c Tue Sep 15 05:01:44 2015 (r287805) +++ head/sys/cam/scsi/scsi_ch.c Tue Sep 15 05:09:17 2015 (r287806) @@ -655,11 +655,13 @@ chdone(struct cam_periph *periph, union */ return; } else if (error != 0) { - int retry_scheduled; struct scsi_mode_sense_6 *sms; + int frozen, retry_scheduled; sms = (struct scsi_mode_sense_6 *) done_ccb->csio.cdb_io.cdb_bytes; + frozen = (done_ccb->ccb_h.status & + CAM_DEV_QFRZN) != 0; /* * Check to see if block descriptors were @@ -670,7 +672,8 @@ chdone(struct cam_periph *periph, union * block descriptors were disabled, enable * them and re-send the command. */ - if (sms->byte2 & SMS_DBD) { + if ((sms->byte2 & SMS_DBD) != 0 && + (periph->flags & CAM_PERIPH_INVALID) == 0) { sms->byte2 &= ~SMS_DBD; xpt_action(done_ccb); softc->quirks |= CH_Q_NO_DBD; @@ -679,7 +682,7 @@ chdone(struct cam_periph *periph, union retry_scheduled = 0; /* Don't wedge this device's queue */ - if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0) + if (frozen) cam_release_devq(done_ccb->ccb_h.path, /*relsim_flags*/0, /*reduction*/0,