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1.1 nbrk 1: /* $OpenBSD: mpivar.h,v 1.22 2007/03/17 10:25:39 dlg Exp $ */
2:
3: /*
4: * Copyright (c) 2005 David Gwynne <dlg@openbsd.org>
5: * Copyright (c) 2005 Marco Peereboom <marco@openbsd.org>
6: *
7: * Permission to use, copy, modify, and distribute this software for any
8: * purpose with or without fee is hereby granted, provided that the above
9: * copyright notice and this permission notice appear in all copies.
10: *
11: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15: * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
16: * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
17: * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18: */
19:
20:
21: /* #define MPI_DEBUG */
22: #ifdef MPI_DEBUG
23: extern uint32_t mpi_debug;
24: #define DPRINTF(x...) do { if (mpi_debug) printf(x); } while(0)
25: #define DNPRINTF(n,x...) do { if (mpi_debug & (n)) printf(x); } while(0)
26: #define MPI_D_CMD 0x0001
27: #define MPI_D_INTR 0x0002
28: #define MPI_D_MISC 0x0004
29: #define MPI_D_DMA 0x0008
30: #define MPI_D_IOCTL 0x0010
31: #define MPI_D_RW 0x0020
32: #define MPI_D_MEM 0x0040
33: #define MPI_D_CCB 0x0080
34: #define MPI_D_PPR 0x0100
35: #define MPI_D_RAID 0x0200
36: #define MPI_D_EVT 0x0400
37: #else
38: #define DPRINTF(x...)
39: #define DNPRINTF(n,x...)
40: #endif
41:
42: #define MPI_REQUEST_SIZE 512
43: #define MPI_REPLY_SIZE 128
44: #define MPI_REPLY_COUNT (PAGE_SIZE / MPI_REPLY_SIZE)
45:
46: /*
47: * this is the max number of sge's we can stuff in a request frame:
48: * sizeof(scsi_io) + sizeof(sense) + sizeof(sge) * 32 = MPI_REQUEST_SIZE
49: */
50: #define MPI_MAX_SGL 36
51:
52: struct mpi_dmamem {
53: bus_dmamap_t mdm_map;
54: bus_dma_segment_t mdm_seg;
55: size_t mdm_size;
56: caddr_t mdm_kva;
57: };
58: #define MPI_DMA_MAP(_mdm) ((_mdm)->mdm_map)
59: #define MPI_DMA_DVA(_mdm) ((_mdm)->mdm_map->dm_segs[0].ds_addr)
60: #define MPI_DMA_KVA(_mdm) ((void *)(_mdm)->mdm_kva)
61:
62: struct mpi_ccb_bundle {
63: struct mpi_msg_scsi_io mcb_io; /* sgl must follow */
64: struct mpi_sge mcb_sgl[MPI_MAX_SGL];
65: struct scsi_sense_data mcb_sense;
66: } __packed;
67:
68: struct mpi_softc;
69:
70: struct mpi_rcb {
71: void *rcb_reply;
72: u_int32_t rcb_reply_dva;
73: };
74:
75: struct mpi_ccb {
76: struct mpi_softc *ccb_sc;
77: int ccb_id;
78:
79: struct scsi_xfer *ccb_xs;
80: bus_dmamap_t ccb_dmamap;
81:
82: bus_addr_t ccb_offset;
83: void *ccb_cmd;
84: bus_addr_t ccb_cmd_dva;
85:
86: volatile enum {
87: MPI_CCB_FREE,
88: MPI_CCB_READY,
89: MPI_CCB_QUEUED
90: } ccb_state;
91: void (*ccb_done)(struct mpi_ccb *);
92: struct mpi_rcb *ccb_rcb;
93:
94: TAILQ_ENTRY(mpi_ccb) ccb_link;
95: };
96:
97: TAILQ_HEAD(mpi_ccb_list, mpi_ccb);
98:
99: struct mpi_softc {
100: struct device sc_dev;
101: struct scsi_link sc_link;
102:
103: int sc_flags;
104: #define MPI_F_SPI (1<<0)
105: #define MPI_F_RAID (1<<1)
106:
107: struct scsibus_softc *sc_scsibus;
108:
109: bus_space_tag_t sc_iot;
110: bus_space_handle_t sc_ioh;
111: bus_size_t sc_ios;
112: bus_dma_tag_t sc_dmat;
113:
114: u_int8_t sc_porttype;
115: int sc_maxcmds;
116: int sc_maxchdepth;
117: int sc_first_sgl_len;
118: int sc_chain_len;
119: int sc_max_sgl_len;
120:
121: int sc_buswidth;
122: int sc_target;
123: int sc_ioc_number;
124:
125: struct mpi_dmamem *sc_requests;
126: struct mpi_ccb *sc_ccbs;
127: struct mpi_ccb_list sc_ccb_free;
128:
129: struct mpi_dmamem *sc_replies;
130: struct mpi_rcb *sc_rcbs;
131:
132: size_t sc_fw_len;
133: struct mpi_dmamem *sc_fw;
134: };
135:
136: int mpi_attach(struct mpi_softc *);
137: void mpi_detach(struct mpi_softc *);
138:
139: int mpi_intr(void *);