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Commit b8ef3204 authored by Mike Christie's avatar Mike Christie Committed by James Bottomley
Browse files

[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: default avatarMike Christie <michaelc@cs.wisc.edu>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@suse.de>
parent 2bfc96a1

drivers/scsi/scsi_transport_fc.c

+5 −1
Original line number Diff line number Diff line
@@ -2525,6 +2525,10 @@ fc_rport_create(struct Scsi_Host *shost, int channel, 


	rport->maxframe_size = -1;

	rport->supported_classes = FC_COS_UNSPECIFIED;

	if (fci->f->get_host_def_dev_loss_tmo) {

		fci->f->get_host_def_dev_loss_tmo(shost);

		rport->dev_loss_tmo = fc_host_def_dev_loss_tmo(shost);

	} else

		rport->dev_loss_tmo = fc_dev_loss_tmo;

	memcpy(&rport->node_name, &ids->node_name, sizeof(rport->node_name));

	memcpy(&rport->port_name, &ids->port_name, sizeof(rport->port_name));

include/scsi/scsi_transport_fc.h

+4 −0
Original line number Diff line number Diff line
@@ -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 *);