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[SCSI] scsi_transport_sas: support link error attributes

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For now supporting the ->get_linkerrors method is mandatory.  I'll
probably be beaten to implement the .show_foo variables and different
types of attributes soon..

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Christoph Hellwig
2005-09-19 21:59:42 +02:00
committed by James Bottomley
parent d25cf1ced9
commit c3ee74c4e9
2 changed files with 49 additions and 5 deletions
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23
include/scsi/scsi_transport_sas.h
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@@ -41,20 +41,28 @@ struct sas_identify {
u8 phy_identifier;
};
/* The functions by which the transport class and the driver communicate */
struct sas_function_template {
};
struct sas_phy {
struct device dev;
int number;
/* phy identification */
struct sas_identify identify;
/* phy attributes */
enum sas_linkrate negotiated_linkrate;
enum sas_linkrate minimum_linkrate_hw;
enum sas_linkrate minimum_linkrate;
enum sas_linkrate maximum_linkrate_hw;
enum sas_linkrate maximum_linkrate;
u8 port_identifier;
/* link error statistics */
u32 invalid_dword_count;
u32 running_disparity_error_count;
u32 loss_of_dword_sync_count;
u32 phy_reset_problem_count;
/* the other end of the link */
struct sas_rphy *rphy;
};
@@ -79,6 +87,13 @@ struct sas_rphy {
#define rphy_to_shost(rphy) \
dev_to_shost((rphy)->dev.parent)
/* The functions by which the transport class and the driver communicate */
struct sas_function_template {
int (*get_linkerrors)(struct sas_phy *);
};
extern void sas_remove_host(struct Scsi_Host *);
extern struct sas_phy *sas_phy_alloc(struct device *, int);