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[SCSI] sas: add support for enclosure and bad ID rphy attributes

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Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Christoph Hellwig 2006-02-16 13:31:47 +01:00 committed by James Bottomley
parent e3094447e0
commit a012564136
2 changed files with 53 additions and 2 deletions
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53
drivers/scsi/scsi_transport_sas.c
View file

@ -1,5 +1,5 @@
/*
* Copyright (C) 2005 Dell Inc.
* Copyright (C) 2005-2006 Dell Inc.
* Released under GPL v2.
*
* Serial Attached SCSI (SAS) transport class.
@ -38,7 +38,7 @@
#define SAS_HOST_ATTRS 0
#define SAS_PORT_ATTRS 17
#define SAS_RPORT_ATTRS 5
#define SAS_RPORT_ATTRS 7
struct sas_internal {
struct scsi_transport_template t;
@ -533,6 +533,53 @@ show_sas_rphy_device_type(struct class_device *cdev, char *buf)
static SAS_CLASS_DEVICE_ATTR(rphy, device_type, S_IRUGO,
show_sas_rphy_device_type, NULL);
static ssize_t
show_sas_rphy_enclosure_identifier(struct class_device *cdev, char *buf)
{
struct sas_rphy *rphy = transport_class_to_rphy(cdev);
struct sas_phy *phy = dev_to_phy(rphy->dev.parent);
struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
struct sas_internal *i = to_sas_internal(shost->transportt);
u64 identifier;
int error;
/*
* Only devices behind an expander are supported, because the
* enclosure identifier is a SMP feature.
*/
if (phy->local_attached)
return -EINVAL;
error = i->f->get_enclosure_identifier(rphy, &identifier);
if (error)
return error;
return sprintf(buf, "0x%llx\n", (unsigned long long)identifier);
}
static SAS_CLASS_DEVICE_ATTR(rphy, enclosure_identifier, S_IRUGO,
show_sas_rphy_enclosure_identifier, NULL);
static ssize_t
show_sas_rphy_bay_identifier(struct class_device *cdev, char *buf)
{
struct sas_rphy *rphy = transport_class_to_rphy(cdev);
struct sas_phy *phy = dev_to_phy(rphy->dev.parent);
struct Scsi_Host *shost = dev_to_shost(phy->dev.parent);
struct sas_internal *i = to_sas_internal(shost->transportt);
int val;
if (phy->local_attached)
return -EINVAL;
val = i->f->get_bay_identifier(rphy);
if (val < 0)
return val;
return sprintf(buf, "%d\n", val);
}
static SAS_CLASS_DEVICE_ATTR(rphy, bay_identifier, S_IRUGO,
show_sas_rphy_bay_identifier, NULL);
sas_rphy_protocol_attr(identify.initiator_port_protocols,
initiator_port_protocols);
sas_rphy_protocol_attr(identify.target_port_protocols, target_port_protocols);
@ -845,6 +892,8 @@ sas_attach_transport(struct sas_function_template *ft)
SETUP_RPORT_ATTRIBUTE(rphy_device_type);
SETUP_RPORT_ATTRIBUTE(rphy_sas_address);
SETUP_RPORT_ATTRIBUTE(rphy_phy_identifier);
SETUP_RPORT_ATTRIBUTE(rphy_enclosure_identifier);
SETUP_RPORT_ATTRIBUTE(rphy_bay_identifier);
i->rphy_attrs[count] = NULL;
return &i->t;

2
include/scsi/scsi_transport_sas.h
View file

@ -94,6 +94,8 @@ struct sas_rphy {
/* The functions by which the transport class and the driver communicate */
struct sas_function_template {
int (*get_linkerrors)(struct sas_phy *);
int (*get_enclosure_identifier)(struct sas_rphy *, u64 *);
int (*get_bay_identifier)(struct sas_rphy *);
int (*phy_reset)(struct sas_phy *, int);
};