diff options
Diffstat (limited to 'include/scsi/scsi_transport_spi.h')
| -rw-r--r-- | include/scsi/scsi_transport_spi.h | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/include/scsi/scsi_transport_spi.h b/include/scsi/scsi_transport_spi.h index a30d6cd4c0e..7497a383b1a 100644 --- a/include/scsi/scsi_transport_spi.h +++ b/include/scsi/scsi_transport_spi.h @@ -20,10 +20,13 @@ #ifndef SCSI_TRANSPORT_SPI_H #define SCSI_TRANSPORT_SPI_H -#include <linux/config.h> #include <linux/transport_class.h> +#include <linux/mutex.h> struct scsi_transport_template; +struct scsi_target; +struct scsi_device; +struct Scsi_Host; struct spi_transport_attrs { int period; /* value in the PPR/SDTR command */ @@ -33,12 +36,15 @@ struct spi_transport_attrs { unsigned int width:1; /* 0 - narrow, 1 - wide */ unsigned int max_width:1; unsigned int iu:1; /* Information Units enabled */ + unsigned int max_iu:1; unsigned int dt:1; /* DT clocking enabled */ unsigned int qas:1; /* Quick Arbitration and Selection enabled */ + unsigned int max_qas:1; unsigned int wr_flow:1; /* Write Flow control enabled */ unsigned int rd_strm:1; /* Read streaming enabled */ unsigned int rti:1; /* Retain Training Information */ unsigned int pcomp_en:1;/* Precompensation enabled */ + unsigned int hold_mcs:1;/* Hold Margin Control Settings */ unsigned int initial_dv:1; /* DV done to this target yet */ unsigned long flags; /* flags field for drivers to use */ /* Device Properties fields */ @@ -49,8 +55,9 @@ struct spi_transport_attrs { unsigned int support_ius; /* support Information Units */ unsigned int support_qas; /* supports quick arbitration and selection */ /* Private Fields */ - unsigned int dv_pending:1; /* Internal flag */ - struct semaphore dv_sem; /* semaphore to serialise dv */ + unsigned int dv_pending:1; /* Internal flag: DV Requested */ + unsigned int dv_in_progress:1; /* Internal: DV started */ + struct mutex dv_mutex; /* semaphore to serialise dv */ }; enum spi_signal_type { @@ -72,13 +79,17 @@ struct spi_host_attrs { #define spi_width(x) (((struct spi_transport_attrs *)&(x)->starget_data)->width) #define spi_max_width(x) (((struct spi_transport_attrs *)&(x)->starget_data)->max_width) #define spi_iu(x) (((struct spi_transport_attrs *)&(x)->starget_data)->iu) +#define spi_max_iu(x) (((struct spi_transport_attrs *)&(x)->starget_data)->max_iu) #define spi_dt(x) (((struct spi_transport_attrs *)&(x)->starget_data)->dt) #define spi_qas(x) (((struct spi_transport_attrs *)&(x)->starget_data)->qas) +#define spi_max_qas(x) (((struct spi_transport_attrs *)&(x)->starget_data)->max_qas) #define spi_wr_flow(x) (((struct spi_transport_attrs *)&(x)->starget_data)->wr_flow) #define spi_rd_strm(x) (((struct spi_transport_attrs *)&(x)->starget_data)->rd_strm) #define spi_rti(x) (((struct spi_transport_attrs *)&(x)->starget_data)->rti) #define spi_pcomp_en(x) (((struct spi_transport_attrs *)&(x)->starget_data)->pcomp_en) +#define spi_hold_mcs(x) (((struct spi_transport_attrs *)&(x)->starget_data)->hold_mcs) #define spi_initial_dv(x) (((struct spi_transport_attrs *)&(x)->starget_data)->initial_dv) +#define spi_dv_pending(x) (((struct spi_transport_attrs *)&(x)->starget_data)->dv_pending) #define spi_support_sync(x) (((struct spi_transport_attrs *)&(x)->starget_data)->support_sync) #define spi_support_wide(x) (((struct spi_transport_attrs *)&(x)->starget_data)->support_wide) @@ -114,8 +125,11 @@ struct spi_function_template { void (*set_rti)(struct scsi_target *, int); void (*get_pcomp_en)(struct scsi_target *); void (*set_pcomp_en)(struct scsi_target *, int); + void (*get_hold_mcs)(struct scsi_target *); + void (*set_hold_mcs)(struct scsi_target *, int); void (*get_signalling)(struct Scsi_Host *); void (*set_signalling)(struct Scsi_Host *, enum spi_signal_type); + int (*deny_binding)(struct scsi_target *); /* The driver sets these to tell the transport class it * wants the attributes displayed in sysfs. If the show_ flag * is not set, the attribute will be private to the transport @@ -130,6 +144,7 @@ struct spi_function_template { unsigned long show_rd_strm:1; unsigned long show_rti:1; unsigned long show_pcomp_en:1; + unsigned long show_hold_mcs:1; }; struct scsi_transport_template *spi_attach_transport(struct spi_function_template *); @@ -137,5 +152,10 @@ void spi_release_transport(struct scsi_transport_template *); void spi_schedule_dv_device(struct scsi_device *); void spi_dv_device(struct scsi_device *); void spi_display_xfer_agreement(struct scsi_target *); +int spi_print_msg(const unsigned char *); +int spi_populate_width_msg(unsigned char *msg, int width); +int spi_populate_sync_msg(unsigned char *msg, int period, int offset); +int spi_populate_ppr_msg(unsigned char *msg, int period, int offset, int width, + int options); #endif /* SCSI_TRANSPORT_SPI_H */ |