diff options
Diffstat (limited to 'drivers/scsi/NCR5380.h')
| -rw-r--r-- | drivers/scsi/NCR5380.h | 78 |
1 files changed, 38 insertions, 40 deletions
diff --git a/drivers/scsi/NCR5380.h b/drivers/scsi/NCR5380.h index c79ddfa6f53c..162112dd1bf8 100644 --- a/drivers/scsi/NCR5380.h +++ b/drivers/scsi/NCR5380.h @@ -7,8 +7,6 @@ * drew@colorado.edu * +1 (303) 666-5836 * - * DISTRIBUTION RELEASE 7 - * * For more information, please consult * * NCR 5380 Family @@ -25,13 +23,7 @@ #define NCR5380_H #include <linux/interrupt.h> - -#ifdef AUTOSENSE #include <scsi/scsi_eh.h> -#endif - -#define NCR5380_PUBLIC_RELEASE 7 -#define NCR53C400_PUBLIC_RELEASE 2 #define NDEBUG_ARBITRATION 0x1 #define NDEBUG_AUTOSENSE 0x2 @@ -224,33 +216,44 @@ #define DISCONNECT_LONG 2 /* - * These are "special" values for the tag parameter passed to NCR5380_select. + * "Special" value for the (unsigned char) command tag, to indicate + * I_T_L nexus instead of I_T_L_Q. */ -#define TAG_NEXT -1 /* Use next free tag */ -#define TAG_NONE -2 /* - * Establish I_T_L nexus instead of I_T_L_Q - * even on SCSI-II devices. - */ +#define TAG_NONE 0xff /* * These are "special" values for the irq and dma_channel fields of the * Scsi_Host structure */ -#define SCSI_IRQ_NONE 255 #define DMA_NONE 255 #define IRQ_AUTO 254 #define DMA_AUTO 254 #define PORT_AUTO 0xffff /* autoprobe io port for 53c400a */ +#ifndef NO_IRQ +#define NO_IRQ 0 +#endif + #define FLAG_HAS_LAST_BYTE_SENT 1 /* NCR53c81 or better */ #define FLAG_CHECK_LAST_BYTE_SENT 2 /* Only test once */ #define FLAG_NCR53C400 4 /* NCR53c400 */ #define FLAG_NO_PSEUDO_DMA 8 /* Inhibit DMA */ #define FLAG_DTC3181E 16 /* DTC3181E */ +#define FLAG_LATE_DMA_SETUP 32 /* Setup NCR before DMA H/W */ +#define FLAG_TAGGED_QUEUING 64 /* as X3T9.2 spelled it */ #ifndef ASM + +#ifdef SUPPORT_TAGS +struct tag_alloc { + DECLARE_BITMAP(allocated, MAX_TAGS); + int nr_allocated; + int queue_size; +}; +#endif + struct NCR5380_hostdata { NCR5380_implementation_fields; /* implementation specific */ struct Scsi_Host *host; /* Host backpointer */ @@ -263,9 +266,9 @@ struct NCR5380_hostdata { volatile int dma_len; /* requested length of DMA */ #endif volatile unsigned char last_message; /* last message OUT */ - volatile Scsi_Cmnd *connected; /* currently connected command */ - volatile Scsi_Cmnd *issue_queue; /* waiting to be issued */ - volatile Scsi_Cmnd *disconnected_queue; /* waiting for reconnect */ + volatile struct scsi_cmnd *connected; /* currently connected command */ + volatile struct scsi_cmnd *issue_queue; /* waiting to be issued */ + volatile struct scsi_cmnd *disconnected_queue; /* waiting for reconnect */ volatile int restart_select; /* we have disconnected, used to restart NCR5380_select() */ @@ -273,19 +276,21 @@ struct NCR5380_hostdata { int flags; unsigned long time_expires; /* in jiffies, set prior to sleeping */ int select_time; /* timer in select for target response */ - volatile Scsi_Cmnd *selecting; + volatile struct scsi_cmnd *selecting; struct delayed_work coroutine; /* our co-routine */ -#ifdef NCR5380_STATS - unsigned timebase; /* Base for time calcs */ - long time_read[8]; /* time to do reads */ - long time_write[8]; /* time to do writes */ - unsigned long bytes_read[8]; /* bytes read */ - unsigned long bytes_write[8]; /* bytes written */ - unsigned pendingr; - unsigned pendingw; -#endif -#ifdef AUTOSENSE struct scsi_eh_save ses; + char info[256]; + int read_overruns; /* number of bytes to cut from a + * transfer to handle chip overruns */ + int retain_dma_intr; + struct work_struct main_task; + volatile int main_running; +#ifdef SUPPORT_TAGS + struct tag_alloc TagAlloc[8][8]; /* 8 targets and 8 LUNs */ +#endif +#ifdef PSEUDO_DMA + unsigned spin_max_r; + unsigned spin_max_w; #endif }; @@ -296,7 +301,8 @@ struct NCR5380_hostdata { #endif #define dprintk(flg, fmt, ...) \ - do { if ((NDEBUG) & (flg)) pr_debug(fmt, ## __VA_ARGS__); } while (0) + do { if ((NDEBUG) & (flg)) \ + printk(KERN_DEBUG fmt, ## __VA_ARGS__); } while (0) #if NDEBUG #define NCR5380_dprint(flg, arg) \ @@ -320,17 +326,9 @@ static void NCR5380_information_transfer(struct Scsi_Host *instance); static irqreturn_t NCR5380_intr(int irq, void *dev_id); #endif static void NCR5380_main(struct work_struct *work); -static void __maybe_unused NCR5380_print_options(struct Scsi_Host *instance); -static int NCR5380_abort(Scsi_Cmnd * cmd); -static int NCR5380_bus_reset(Scsi_Cmnd * cmd); -static int NCR5380_queue_command(struct Scsi_Host *, struct scsi_cmnd *); -static int __maybe_unused NCR5380_show_info(struct seq_file *, - struct Scsi_Host *); -static int __maybe_unused NCR5380_write_info(struct Scsi_Host *instance, - char *buffer, int length); - +static const char *NCR5380_info(struct Scsi_Host *instance); static void NCR5380_reselect(struct Scsi_Host *instance); -static int NCR5380_select(struct Scsi_Host *instance, Scsi_Cmnd * cmd, int tag); +static int NCR5380_select(struct Scsi_Host *instance, struct scsi_cmnd *cmd); #if defined(PSEUDO_DMA) || defined(REAL_DMA) || defined(REAL_DMA_POLL) static int NCR5380_transfer_dma(struct Scsi_Host *instance, unsigned char *phase, int *count, unsigned char **data); #endif |