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| author | Matthew Wilcox <matthew@wil.cx> | 2006-11-22 13:24:54 -0700 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-11-22 16:42:42 -0600 |
| commit | 1aa8fab2acf1cb8b341131b726773fcff0abc707 (patch) | |
| tree | 27590ddf03adce3b6244d60d4a818d9bdbbe85b0 /include/scsi | |
| parent | 93b45af5c6b9d41bbe9da11442291ac4eefc15b4 (diff) | |
| download | kernel-common-1aa8fab2acf1cb8b341131b726773fcff0abc707.tar.gz kernel-common-1aa8fab2acf1cb8b341131b726773fcff0abc707.tar.bz2 kernel-common-1aa8fab2acf1cb8b341131b726773fcff0abc707.zip | |
[SCSI] Make scsi_scan_host work for drivers which find their own targets
If a driver can find its own targets, it can now fill in scan_finished and
(optionally) scan_start in the scsi_host_template. Then, when it calls
scsi_scan_host(), it will be called back (from a thread if asynchronous
discovery is enabled), first to start the scan, and then at intervals to
check if the scan is completed.
Also make scsi_prep_async_scan and scsi_finish_async_scan static.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'include/scsi')
| -rw-r--r-- | include/scsi/scsi_host.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index e618e711ea57..6d8945d71c65 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -241,6 +241,24 @@ struct scsi_host_template { void (* target_destroy)(struct scsi_target *); /* + * If a host has the ability to discover targets on its own instead + * of scanning the entire bus, it can fill in this function and + * call scsi_scan_host(). This function will be called periodically + * until it returns 1 with the scsi_host and the elapsed time of + * the scan in jiffies. + * + * Status: OPTIONAL + */ + int (* scan_finished)(struct Scsi_Host *, unsigned long); + + /* + * If the host wants to be called before the scan starts, but + * after the midlayer has set up ready for the scan, it can fill + * in this function. + */ + void (* scan_start)(struct Scsi_Host *); + + /* * fill in this function to allow the queue depth of this host * to be changeable (on a per device basis). returns either * the current queue depth setting (may be different from what |