[SCSI] libsas: async ata scanning
libsas ata error handling is already async but this does not help the
scan case. Move initial link recovery out from under host->scan_mutex,
and delay synchronization with eh until after all port probe/recovery
work has been queued.
Device ordering is maintained with scan order by still calling
sas_rphy_add() in order of domain discovery.
Since we now scan the domain list when invoking libata-eh we need to be
careful to check for fully initialized ata ports.
Acked-by: Jack Wang <jack_wang@usish.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/libsas/sas_internal.h b/drivers/scsi/libsas/sas_internal.h
index e028d7a..d0d9bf1 100644
--- a/drivers/scsi/libsas/sas_internal.h
+++ b/drivers/scsi/libsas/sas_internal.h
@@ -113,6 +113,15 @@
}
#endif
+static inline void sas_fail_probe(struct domain_device *dev, const char *func, int err)
+{
+ SAS_DPRINTK("%s: for %s device %16llx returned %d\n",
+ func, dev->parent ? "exp-attached" :
+ "direct-attached",
+ SAS_ADDR(dev->sas_addr), err);
+ sas_unregister_dev(dev->port, dev);
+}
+
static inline void sas_fill_in_rphy(struct domain_device *dev,
struct sas_rphy *rphy)
{