diff options
Diffstat (limited to 'drivers/scsi/scsi_scan.c')
| -rw-r--r-- | drivers/scsi/scsi_scan.c | 39 |
1 files changed, 26 insertions, 13 deletions
diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c index b53c5f67e37..1dc165ad17f 100644 --- a/drivers/scsi/scsi_scan.c +++ b/drivers/scsi/scsi_scan.c @@ -221,6 +221,9 @@ static void scsi_unlock_floptical(struct scsi_device *sdev, /** * scsi_alloc_sdev - allocate and setup a scsi_Device + * @starget: which target to allocate a &scsi_device for + * @lun: which lun + * @hostdata: usually NULL and set by ->slave_alloc instead * * Description: * Allocate, initialize for io, and return a pointer to a scsi_Device. @@ -236,6 +239,7 @@ static struct scsi_device *scsi_alloc_sdev(struct scsi_target *starget, struct scsi_device *sdev; int display_failure_msg = 1, ret; struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); + extern void scsi_evt_thread(struct work_struct *work); sdev = kzalloc(sizeof(*sdev) + shost->transportt->device_size, GFP_ATOMIC); @@ -254,7 +258,9 @@ static struct scsi_device *scsi_alloc_sdev(struct scsi_target *starget, INIT_LIST_HEAD(&sdev->same_target_siblings); INIT_LIST_HEAD(&sdev->cmd_list); INIT_LIST_HEAD(&sdev->starved_entry); + INIT_LIST_HEAD(&sdev->event_list); spin_lock_init(&sdev->list_lock); + INIT_WORK(&sdev->event_work, scsi_evt_thread); sdev->sdev_gendev.parent = get_device(&starget->dev); sdev->sdev_target = starget; @@ -469,7 +475,6 @@ static void scsi_target_reap_usercontext(struct work_struct *work) /** * scsi_target_reap - check to see if target is in use and destroy if not - * * @starget: target to be checked * * This is used after removing a LUN or doing a last put of the target @@ -860,7 +865,7 @@ static int scsi_add_lun(struct scsi_device *sdev, unsigned char *inq_result, sdev->no_start_on_add = 1; if (*bflags & BLIST_SINGLELUN) - sdev->single_lun = 1; + scsi_target(sdev)->single_lun = 1; sdev->use_10_for_rw = 1; @@ -925,8 +930,7 @@ static inline void scsi_destroy_sdev(struct scsi_device *sdev) #ifdef CONFIG_SCSI_LOGGING /** - * scsi_inq_str - print INQUIRY data from min to max index, - * strip trailing whitespace + * scsi_inq_str - print INQUIRY data from min to max index, strip trailing whitespace * @buf: Output buffer with at least end-first+1 bytes of space * @inq: Inquiry buffer (input) * @first: Offset of string into inq @@ -954,9 +958,10 @@ static unsigned char *scsi_inq_str(unsigned char *buf, unsigned char *inq, * scsi_probe_and_add_lun - probe a LUN, if a LUN is found add it * @starget: pointer to target device structure * @lun: LUN of target device - * @sdevscan: probe the LUN corresponding to this scsi_device - * @sdevnew: store the value of any new scsi_device allocated * @bflagsp: store bflags here if not NULL + * @sdevp: probe the LUN corresponding to this scsi_device + * @rescan: if nonzero skip some code only needed on first scan + * @hostdata: passed to scsi_alloc_sdev() * * Description: * Call scsi_probe_lun, if a LUN with an attached device is found, @@ -1107,6 +1112,8 @@ static int scsi_probe_and_add_lun(struct scsi_target *starget, * scsi_sequential_lun_scan - sequentially scan a SCSI target * @starget: pointer to target structure to scan * @bflags: black/white list flag for LUN 0 + * @scsi_level: Which version of the standard does this device adhere to + * @rescan: passed to scsi_probe_add_lun() * * Description: * Generally, scan from LUN 1 (LUN 0 is assumed to already have been @@ -1217,7 +1224,7 @@ EXPORT_SYMBOL(scsilun_to_int); /** * int_to_scsilun: reverts an int into a scsi_lun - * @int: integer to be reverted + * @lun: integer to be reverted * @scsilun: struct scsi_lun to be set. * * Description: @@ -1249,18 +1256,22 @@ EXPORT_SYMBOL(int_to_scsilun); /** * scsi_report_lun_scan - Scan using SCSI REPORT LUN results - * @sdevscan: scan the host, channel, and id of this scsi_device + * @starget: which target + * @bflags: Zero or a mix of BLIST_NOLUN, BLIST_REPORTLUN2, or BLIST_NOREPORTLUN + * @rescan: nonzero if we can skip code only needed on first scan * * Description: - * If @sdevscan is for a SCSI-3 or up device, send a REPORT LUN - * command, and scan the resulting list of LUNs by calling - * scsi_probe_and_add_lun. + * Fast scanning for modern (SCSI-3) devices by sending a REPORT LUN command. + * Scan the resulting list of LUNs by calling scsi_probe_and_add_lun. * - * Modifies sdevscan->lun. + * If BLINK_REPORTLUN2 is set, scan a target that supports more than 8 + * LUNs even if it's older than SCSI-3. + * If BLIST_NOREPORTLUN is set, return 1 always. + * If BLIST_NOLUN is set, return 0 always. * * Return: * 0: scan completed (or no memory, so further scanning is futile) - * 1: no report lun scan, or not configured + * 1: could not scan with REPORT LUN **/ static int scsi_report_lun_scan(struct scsi_target *starget, int bflags, int rescan) @@ -1478,6 +1489,7 @@ struct scsi_device *__scsi_add_device(struct Scsi_Host *shost, uint channel, if (scsi_host_scan_allowed(shost)) scsi_probe_and_add_lun(starget, lun, NULL, &sdev, 1, hostdata); mutex_unlock(&shost->scan_mutex); + transport_configure_device(&starget->dev); scsi_target_reap(starget); put_device(&starget->dev); @@ -1558,6 +1570,7 @@ static void __scsi_scan_target(struct device *parent, unsigned int channel, out_reap: /* now determine if the target has any children at all * and if not, nuke it */ + transport_configure_device(&starget->dev); scsi_target_reap(starget); put_device(&starget->dev); |