Date: Sun, 1 Mar 2009 22:37:34 +0000 (UTC) From: Scott Long <scottl@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-7@freebsd.org Subject: svn commit: r189253 - in stable/7/sys: . cam/scsi contrib/pf dev/cxgb Message-ID: <200903012237.n21MbYkf056028@svn.freebsd.org>
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Author: scottl Date: Sun Mar 1 22:37:34 2009 New Revision: 189253 URL: http://svn.freebsd.org/changeset/base/189253 Log: Merge 186882: Implement kern.cam.cd.retry_count to aid with disk- recovery tools. Modified: stable/7/sys/ (props changed) stable/7/sys/cam/scsi/scsi_cd.c stable/7/sys/contrib/pf/ (props changed) stable/7/sys/dev/cxgb/ (props changed) Modified: stable/7/sys/cam/scsi/scsi_cd.c ============================================================================== --- stable/7/sys/cam/scsi/scsi_cd.c Sun Mar 1 22:10:51 2009 (r189252) +++ stable/7/sys/cam/scsi/scsi_cd.c Sun Mar 1 22:37:34 2009 (r189253) @@ -292,6 +292,9 @@ static struct periph_driver cddriver = PERIPHDRIVER_DECLARE(cd, cddriver); +#ifndef CD_DEFAULT_RETRY +#define CD_DEFAULT_RETRY 4 +#endif #ifndef CHANGER_MIN_BUSY_SECONDS #define CHANGER_MIN_BUSY_SECONDS 5 #endif @@ -299,11 +302,15 @@ PERIPHDRIVER_DECLARE(cd, cddriver); #define CHANGER_MAX_BUSY_SECONDS 15 #endif +static int cd_retry_count = CD_DEFAULT_RETRY; static int changer_min_busy_seconds = CHANGER_MIN_BUSY_SECONDS; static int changer_max_busy_seconds = CHANGER_MAX_BUSY_SECONDS; SYSCTL_NODE(_kern_cam, OID_AUTO, cd, CTLFLAG_RD, 0, "CAM CDROM driver"); SYSCTL_NODE(_kern_cam_cd, OID_AUTO, changer, CTLFLAG_RD, 0, "CD Changer"); +SYSCTL_INT(_kern_cam_cd, OID_AUTO, retry_count, CTLFLAG_RW, + &cd_retry_count, 0, "Normal I/O retry count"); +TUNABLE_INT("kern.cam.cd.retry_count", &cd_retry_count); SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, min_busy_seconds, CTLFLAG_RW, &changer_min_busy_seconds, 0, "Minimum changer scheduling quantum"); TUNABLE_INT("kern.cam.cd.changer.min_busy_seconds", &changer_min_busy_seconds); @@ -1454,7 +1461,7 @@ cdstart(struct cam_periph *periph, union devstat_start_transaction_bio(softc->disk->d_devstat, bp); scsi_read_write(&start_ccb->csio, - /*retries*/4, + /*retries*/cd_retry_count, /* cbfcnp */ cddone, MSG_SIMPLE_Q_TAG, /* read */bp->bio_cmd == BIO_READ,
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