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authorChristoph Hellwig <hch@lst.de>2005-09-19 21:59:42 +0200
committerJames Bottomley <jejb@mulgrave.(none)>2005-10-28 14:57:58 -0500
commitc3ee74c4e91017169c7f1fa74a57ba8502ec49c3 (patch)
tree44e429eab97f84511ecd1fb7f2e7568c4e5beecc /include/scsi/scsi_transport_sas.h
parentd25cf1ced9d446dcd3fd399e15b518fea936f3ed (diff)
downloadlinux-c3ee74c4e91017169c7f1fa74a57ba8502ec49c3.tar.bz2
[SCSI] scsi_transport_sas: support link error attributes
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>
Diffstat (limited to 'include/scsi/scsi_transport_sas.h')
-rw-r--r--include/scsi/scsi_transport_sas.h23
1 files changed, 19 insertions, 4 deletions
diff --git a/include/scsi/scsi_transport_sas.h b/include/scsi/scsi_transport_sas.h
index bc4aeb660dd3..38389d8dd56e 100644
--- a/include/scsi/scsi_transport_sas.h
+++ b/include/scsi/scsi_transport_sas.h
@@ -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);