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authorDan Williams <dan.j.williams@intel.com>2011-12-20 01:03:48 -0800
committerJames Bottomley <JBottomley@Parallels.com>2012-02-19 14:11:33 -0600
commit0b3e09da1350397f3f8b6fd839ab455b0b587451 (patch)
treef822bb4dcaa52d5d568104932ee55ee136dcf039 /include/scsi
parentb52df4174dff7e587f6fbfb21e3c2cb57109e5cf (diff)
[SCSI] libsas: perform sas-transport resets in shost->workq context
Extend the sas transport class to allow transport users to attach extra data to a sas_phy (->hostdata). Use this area in libsas to move resets to workq context in preparation for scheduling ata device resets through libata-eh. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'include/scsi')
-rw-r--r--include/scsi/scsi_transport_sas.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/include/scsi/scsi_transport_sas.h b/include/scsi/scsi_transport_sas.h
index 6d14daac758..42817facaed 100644
--- a/include/scsi/scsi_transport_sas.h
+++ b/include/scsi/scsi_transport_sas.h
@@ -75,7 +75,8 @@ struct sas_phy {
/* for the list of phys belonging to a port */
struct list_head port_siblings;
- struct work_struct reset_work;
+ /* available to the lldd */
+ void *hostdata;
};
#define dev_to_phy(d) \
@@ -169,6 +170,8 @@ struct sas_function_template {
int (*get_bay_identifier)(struct sas_rphy *);
int (*phy_reset)(struct sas_phy *, int);
int (*phy_enable)(struct sas_phy *, int);
+ int (*phy_setup)(struct sas_phy *);
+ void (*phy_release)(struct sas_phy *);
int (*set_phy_speed)(struct sas_phy *, struct sas_phy_linkrates *);
int (*smp_handler)(struct Scsi_Host *, struct sas_rphy *, struct request *);
};