diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2011-12-20 13:03:48 +0400 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-02-20 00:11:33 +0400 |
| commit | 0b3e09da1350397f3f8b6fd839ab455b0b587451 (patch) | |
| tree | f822bb4dcaa52d5d568104932ee55ee136dcf039 /drivers/scsi/libsas/sas_internal.h | |
| parent | b52df4174dff7e587f6fbfb21e3c2cb57109e5cf (diff) | |
| download | linux-0b3e09da1350397f3f8b6fd839ab455b0b587451.tar.xz | |
[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 'drivers/scsi/libsas/sas_internal.h')
| -rw-r--r-- | drivers/scsi/libsas/sas_internal.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/scsi/libsas/sas_internal.h b/drivers/scsi/libsas/sas_internal.h index 662ffcba99d2..9ba65e0c6f91 100644 --- a/drivers/scsi/libsas/sas_internal.h +++ b/drivers/scsi/libsas/sas_internal.h @@ -38,6 +38,15 @@ #define TO_SAS_TASK(_scsi_cmd) ((void *)(_scsi_cmd)->host_scribble) #define ASSIGN_SAS_TASK(_sc, _t) do { (_sc)->host_scribble = (void *) _t; } while (0) +struct sas_phy_data { + /* let reset be performed in sas_queue_work() context */ + struct sas_phy *phy; + struct mutex event_lock; + int hard_reset; + int reset_result; + struct work_struct reset_work; +}; + void sas_scsi_recover_host(struct Scsi_Host *shost); int sas_show_class(enum sas_class class, char *buf); @@ -66,6 +75,7 @@ void sas_porte_broadcast_rcvd(struct work_struct *work); void sas_porte_link_reset_err(struct work_struct *work); void sas_porte_timer_event(struct work_struct *work); void sas_porte_hard_reset(struct work_struct *work); +void sas_queue_work(struct sas_ha_struct *ha, struct work_struct *work); int sas_notify_lldd_dev_found(struct domain_device *); void sas_notify_lldd_dev_gone(struct domain_device *); |