diff options
| -rw-r--r-- | drivers/scsi/scsi_transport_sas.c | 31 | ||||
| -rw-r--r-- | include/scsi/scsi_transport_sas.h | 23 |
2 files changed, 49 insertions, 5 deletions
diff --git a/drivers/scsi/scsi_transport_sas.c b/drivers/scsi/scsi_transport_sas.c index 1d145d2f9a3..63445f90097 100644 --- a/drivers/scsi/scsi_transport_sas.c +++ b/drivers/scsi/scsi_transport_sas.c @@ -34,7 +34,7 @@ #define SAS_HOST_ATTRS 0 -#define SAS_PORT_ATTRS 11 +#define SAS_PORT_ATTRS 15 #define SAS_RPORT_ATTRS 5 struct sas_internal { @@ -257,6 +257,26 @@ show_sas_phy_##field(struct class_device *cdev, char *buf) \ sas_phy_show_linkspeed(field) \ static CLASS_DEVICE_ATTR(field, S_IRUGO, show_sas_phy_##field, NULL) +#define sas_phy_show_linkerror(field) \ +static ssize_t \ +show_sas_phy_##field(struct class_device *cdev, char *buf) \ +{ \ + struct sas_phy *phy = transport_class_to_phy(cdev); \ + struct Scsi_Host *shost = dev_to_shost(phy->dev.parent); \ + struct sas_internal *i = to_sas_internal(shost->transportt); \ + int error; \ + \ + error = i->f->get_linkerrors(phy); \ + if (error) \ + return error; \ + return snprintf(buf, 20, "%u\n", phy->field); \ +} + +#define sas_phy_linkerror_attr(field) \ + sas_phy_show_linkerror(field) \ +static CLASS_DEVICE_ATTR(field, S_IRUGO, show_sas_phy_##field, NULL) + + static ssize_t show_sas_device_type(struct class_device *cdev, char *buf) { @@ -282,6 +302,10 @@ sas_phy_linkspeed_attr(minimum_linkrate_hw); sas_phy_linkspeed_attr(minimum_linkrate); sas_phy_linkspeed_attr(maximum_linkrate_hw); sas_phy_linkspeed_attr(maximum_linkrate); +sas_phy_linkerror_attr(invalid_dword_count); +sas_phy_linkerror_attr(running_disparity_error_count); +sas_phy_linkerror_attr(loss_of_dword_sync_count); +sas_phy_linkerror_attr(phy_reset_problem_count); static DECLARE_TRANSPORT_CLASS(sas_phy_class, @@ -749,6 +773,11 @@ sas_attach_transport(struct sas_function_template *ft) SETUP_PORT_ATTRIBUTE(minimum_linkrate); SETUP_PORT_ATTRIBUTE(maximum_linkrate_hw); SETUP_PORT_ATTRIBUTE(maximum_linkrate); + + SETUP_PORT_ATTRIBUTE(invalid_dword_count); + SETUP_PORT_ATTRIBUTE(running_disparity_error_count); + SETUP_PORT_ATTRIBUTE(loss_of_dword_sync_count); + SETUP_PORT_ATTRIBUTE(phy_reset_problem_count); i->phy_attrs[count] = NULL; count = 0; diff --git a/include/scsi/scsi_transport_sas.h b/include/scsi/scsi_transport_sas.h index bc4aeb660dd..38389d8dd56 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); |