diff options
Diffstat (limited to 'sys/dev/ic/adw.h')
| -rw-r--r-- | sys/dev/ic/adw.h | 91 |
1 files changed, 74 insertions, 17 deletions
diff --git a/sys/dev/ic/adw.h b/sys/dev/ic/adw.h index d05355a2ce0..fa9c4c3d5e0 100644 --- a/sys/dev/ic/adw.h +++ b/sys/dev/ic/adw.h @@ -1,11 +1,10 @@ -/* $OpenBSD: adw.h,v 1.2 1998/12/30 15:13:04 downsj Exp $ */ -/* $NetBSD: adw.h,v 1.1 1998/09/26 16:10:41 dante Exp $ */ +/* $NetBSD: adw.h,v 1.5 2000/02/03 20:29:15 dante Exp $ */ /* * Generic driver definitions and exported functions for the Advanced * Systems Inc. SCSI controllers * - * Copyright (c) 1998 The NetBSD Foundation, Inc. + * Copyright (c) 1998, 1999, 2000 The NetBSD Foundation, Inc. * All rights reserved. * * Author: Baldassare Dante Profeta <dante@mclink.it> @@ -45,10 +44,55 @@ /******************************************************************************/ typedef int (* ADW_ISR_CALLBACK) (ADW_SOFTC *, ADW_SCSI_REQ_Q *); -typedef int (* ADW_SBRESET_CALLBACK) (ADW_SOFTC *); +typedef void (* ADW_ASYNC_CALLBACK) (ADW_SOFTC *, u_int8_t); -/* per request scatter-gather element limit */ -#define ADW_MAX_SG_LIST 64 + +/* + * Every adw_carrier structure _MUST_ always be aligned on a 16 bytes boundary + */ +struct adw_carrier { +/* ---------- the microcode wants the field below ---------- */ + u_int32_t unused; /* Carrier Virtual Address -UNUSED- */ + u_int32_t carr_pa; /* Carrier Physical Address */ + u_int32_t areq_vpa; /* ADW_SCSI_REQ_Q Physical Address */ + /* + * next_vpa [31:4] Carrier Physical Next Pointer + * + * next_vpa [3:1] Reserved Bits + * next_vpa [0] Done Flag set in Response Queue. + */ + u_int32_t next_vpa; +/* ---------- ---------- */ + struct adw_carrier *nexthash; /* Carrier Virtual Address */ + + int id; + /* + * This DMA map maps the buffer involved in the carrier transfer. + */ +// bus_dmamap_t dmamap_xfer; +}; + +typedef struct adw_carrier ADW_CARRIER; + +#define ADW_CARRIER_SIZE ((((int)((sizeof(ADW_CARRIER)-1)/16))+1)*16) + + +/* + * Mask used to eliminate low 4 bits of carrier 'next_vpa' field. + */ +#define ASC_NEXT_VPA_MASK 0xFFFFFFF0 + +#define ASC_RQ_DONE 0x00000001 +#define ASC_CQ_STOPPER 0x00000000 + +#define ASC_GET_CARRP(carrp) ((carrp) & ASC_NEXT_VPA_MASK) + + +/* + * per request scatter-gather element limit + * We could have up to 256 SG lists. + */ +#define ADW_MAX_SG_LIST 255 /* * Scatter-Gather Definitions per request. @@ -61,14 +105,18 @@ typedef int (* ADW_SBRESET_CALLBACK) (ADW_SOFTC *); ((ADW_MAX_SG_LIST + (NO_OF_SG_PER_BLOCK - 1))/NO_OF_SG_PER_BLOCK) -struct adw_ccb -{ - ADW_SG_BLOCK sg_block[ADW_NUM_SG_BLOCK]; +struct adw_ccb { ADW_SCSI_REQ_Q scsiq; + ADW_SG_BLOCK sg_block[ADW_NUM_SG_BLOCK]; + + ADW_CARRIER *carr_list; /* carriers involved */ - struct scsi_sense_data scsi_sense; + struct scsi_sense_data scsi_sense; TAILQ_ENTRY(adw_ccb) chain; + struct adw_ccb *nexthash; + u_int32_t hashkey; + struct scsi_xfer *xs; /* the scsi_xfer for this cmd */ int flags; /* see below */ @@ -82,19 +130,26 @@ struct adw_ccb typedef struct adw_ccb ADW_CCB; /* flags for ADW_CCB */ -#define CCB_ALLOC 0x01 -#define CCB_ABORT 0x02 -#define CCB_WATCHDOG 0x10 +#define CCB_ALLOC 0x01 +#define CCB_ABORTING 0x02 +#define CCB_ABORTED 0x04 -#define ADW_MAX_CCB 64 +#define ADW_MAX_CARRIER 20 /* Max. number of host commands (253) */ +#define ADW_MAX_CCB 16 /* Max. number commands per device (63) */ -struct adw_control -{ - ADW_CCB ccbs[ADW_MAX_CCB]; /* all our control blocks */ +struct adw_control { + ADW_CCB ccbs[ADW_MAX_CCB]; /* all our control blocks */ + ADW_CARRIER *carriers; /* all our carriers */ + bus_dmamap_t dmamap_xfer; }; /* + * Offset of a carrier from the beginning of the carriers DMA mapping. + */ +#define ADW_CARRIER_ADDR(sc, x) ((sc)->sc_dmamap_carrier->dm_segs[0].ds_addr + \ + (((u_long)x) - ((u_long)(sc)->sc_control->carriers))) +/* * Offset of a CCB from the beginning of the control DMA mapping. */ #define ADW_CCB_OFF(c) (offsetof(struct adw_control, ccbs[0]) + \ @@ -105,6 +160,8 @@ struct adw_control int adw_init __P((ADW_SOFTC *sc)); void adw_attach __P((ADW_SOFTC *sc)); int adw_intr __P((void *arg)); +ADW_CCB *adw_ccb_phys_kv __P((ADW_SOFTC *, u_int32_t)); +ADW_CARRIER *adw_carrier_phys_kv __P((ADW_SOFTC *, u_int32_t)); /******************************************************************************/ |