From b8ef3204f460912a46659cdc74d237adbe705053 Mon Sep 17 00:00:00 2001
From: Mike Christie <michaelc@cs.wisc.edu>
Date: Fri, 6 Aug 2010 03:02:37 -0500
Subject: [SCSI] fc class: add fc host default default dev loss setting
This patch adds a fc_host setting to store the
default dev_loss_tmo. It is used if the driver
has a callack to get the value from the LLD. If
the callback is not set, then we use the fc class
module default value.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
include/scsi/scsi_transport_fc.h | 4 ++++
1 file changed, 4 insertions(+)
(limited to 'include/scsi/scsi_transport_fc.h')
diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h
index 87d81b3ce564..9f98fca9b763 100644
--- a/include/scsi/scsi_transport_fc.h
+++ b/include/scsi/scsi_transport_fc.h
@@ -496,6 +496,7 @@ struct fc_host_attrs {
u64 fabric_name;
char symbolic_name[FC_SYMBOLIC_NAME_SIZE];
char system_hostname[FC_SYMBOLIC_NAME_SIZE];
+ u32 def_dev_loss_tmo;
/* Private (Transport-managed) Attributes */
enum fc_tgtid_binding_type tgtid_bind_type;
@@ -580,6 +581,8 @@ struct fc_host_attrs {
(((struct fc_host_attrs *)(x)->shost_data)->devloss_work_q_name)
#define fc_host_devloss_work_q(x) \
(((struct fc_host_attrs *)(x)->shost_data)->devloss_work_q)
+#define fc_host_def_dev_loss_tmo(x) \
+ (((struct fc_host_attrs *)(x)->shost_data)->def_dev_loss_tmo)
struct fc_bsg_buffer {
@@ -640,6 +643,7 @@ struct fc_function_template {
void (*get_host_fabric_name)(struct Scsi_Host *);
void (*get_host_symbolic_name)(struct Scsi_Host *);
void (*set_host_system_hostname)(struct Scsi_Host *);
+ void (*get_host_def_dev_loss_tmo)(struct Scsi_Host *);
struct fc_host_statistics * (*get_fc_host_stats)(struct Scsi_Host *);
void (*reset_fc_host_stats)(struct Scsi_Host *);
--
cgit v1.2.1
From 43ca910a9c90566308f39f51ac03a55f94a5f83c Mon Sep 17 00:00:00 2001
From: Mike Christie <michaelc@cs.wisc.edu>
Date: Wed, 15 Sep 2010 16:52:32 -0500
Subject: [SCSI] fc class: add fc host dev loss sysfs file
This adds a fc host dev loss sysfs file. Instead of
calling into the driver using the get_host_def_dev_loss_tmo
callback, we allow drivers to init the dev loss like is done
for other fc host params, and then the fc class will handle
updating the value if the user writes to the new sysfs file.
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---
include/scsi/scsi_transport_fc.h | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
(limited to 'include/scsi/scsi_transport_fc.h')
diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h
index 9f98fca9b763..59816fe31e68 100644
--- a/include/scsi/scsi_transport_fc.h
+++ b/include/scsi/scsi_transport_fc.h
@@ -496,7 +496,7 @@ struct fc_host_attrs {
u64 fabric_name;
char symbolic_name[FC_SYMBOLIC_NAME_SIZE];
char system_hostname[FC_SYMBOLIC_NAME_SIZE];
- u32 def_dev_loss_tmo;
+ u32 dev_loss_tmo;
/* Private (Transport-managed) Attributes */
enum fc_tgtid_binding_type tgtid_bind_type;
@@ -581,8 +581,8 @@ struct fc_host_attrs {
(((struct fc_host_attrs *)(x)->shost_data)->devloss_work_q_name)
#define fc_host_devloss_work_q(x) \
(((struct fc_host_attrs *)(x)->shost_data)->devloss_work_q)
-#define fc_host_def_dev_loss_tmo(x) \
- (((struct fc_host_attrs *)(x)->shost_data)->def_dev_loss_tmo)
+#define fc_host_dev_loss_tmo(x) \
+ (((struct fc_host_attrs *)(x)->shost_data)->dev_loss_tmo)
struct fc_bsg_buffer {
@@ -643,7 +643,6 @@ struct fc_function_template {
void (*get_host_fabric_name)(struct Scsi_Host *);
void (*get_host_symbolic_name)(struct Scsi_Host *);
void (*set_host_system_hostname)(struct Scsi_Host *);
- void (*get_host_def_dev_loss_tmo)(struct Scsi_Host *);
struct fc_host_statistics * (*get_fc_host_stats)(struct Scsi_Host *);
void (*reset_fc_host_stats)(struct Scsi_Host *);
--
cgit v1.2.1