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/* $OpenBSD: mpivar.h,v 1.28 2010/01/03 06:47:58 dlg Exp $ */
/*
* Copyright (c) 2005 David Gwynne <dlg@openbsd.org>
* Copyright (c) 2005 Marco Peereboom <marco@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/* #define MPI_DEBUG */
#ifdef MPI_DEBUG
extern uint32_t mpi_debug;
#define DPRINTF(x...) do { if (mpi_debug) printf(x); } while(0)
#define DNPRINTF(n,x...) do { if (mpi_debug & (n)) printf(x); } while(0)
#define MPI_D_CMD 0x0001
#define MPI_D_INTR 0x0002
#define MPI_D_MISC 0x0004
#define MPI_D_DMA 0x0008
#define MPI_D_IOCTL 0x0010
#define MPI_D_RW 0x0020
#define MPI_D_MEM 0x0040
#define MPI_D_CCB 0x0080
#define MPI_D_PPR 0x0100
#define MPI_D_RAID 0x0200
#define MPI_D_EVT 0x0400
#else
#define DPRINTF(x...)
#define DNPRINTF(n,x...)
#endif
#define MPI_REQUEST_SIZE 512
#define MPI_REPLY_SIZE 80
#define MPI_REPLYQ_DEPTH 128
#define MPI_REPLY_COUNT (PAGE_SIZE / MPI_REPLY_SIZE)
/*
* this is the max number of sge's we can stuff in a request frame:
* sizeof(scsi_io) + sizeof(sense) + sizeof(sge) * 32 = MPI_REQUEST_SIZE
*/
#define MPI_MAX_SGL 36
struct mpi_dmamem {
bus_dmamap_t mdm_map;
bus_dma_segment_t mdm_seg;
size_t mdm_size;
caddr_t mdm_kva;
};
#define MPI_DMA_MAP(_mdm) ((_mdm)->mdm_map)
#define MPI_DMA_DVA(_mdm) ((_mdm)->mdm_map->dm_segs[0].ds_addr)
#define MPI_DMA_KVA(_mdm) ((void *)(_mdm)->mdm_kva)
struct mpi_ccb_bundle {
struct mpi_msg_scsi_io mcb_io; /* sgl must follow */
struct mpi_sge mcb_sgl[MPI_MAX_SGL];
struct scsi_sense_data mcb_sense;
} __packed;
struct mpi_softc;
struct mpi_rcb {
void *rcb_reply;
bus_addr_t rcb_offset;
u_int32_t rcb_reply_dva;
};
struct mpi_ccb {
struct mpi_softc *ccb_sc;
int ccb_id;
void *ccb_cookie;
bus_dmamap_t ccb_dmamap;
bus_addr_t ccb_offset;
void *ccb_cmd;
bus_addr_t ccb_cmd_dva;
volatile enum {
MPI_CCB_FREE,
MPI_CCB_READY,
MPI_CCB_QUEUED
} ccb_state;
void (*ccb_done)(struct mpi_ccb *);
struct mpi_rcb *ccb_rcb;
TAILQ_ENTRY(mpi_ccb) ccb_link;
};
TAILQ_HEAD(mpi_ccb_list, mpi_ccb);
struct mpi_softc {
struct device sc_dev;
struct scsi_link sc_link;
int sc_flags;
#define MPI_F_SPI (1<<0)
#define MPI_F_RAID (1<<1)
struct scsibus_softc *sc_scsibus;
bus_space_tag_t sc_iot;
bus_space_handle_t sc_ioh;
bus_size_t sc_ios;
bus_dma_tag_t sc_dmat;
struct mutex sc_reply_mtx;
u_int8_t sc_porttype;
int sc_maxcmds;
int sc_maxchdepth;
int sc_first_sgl_len;
int sc_chain_len;
int sc_max_sgl_len;
int sc_buswidth;
int sc_target;
int sc_ioc_number;
struct mpi_dmamem *sc_requests;
struct mpi_ccb *sc_ccbs;
struct mpi_ccb_list sc_ccb_free;
struct mutex sc_ccb_mtx;
struct mpi_dmamem *sc_replies;
struct mpi_rcb *sc_rcbs;
int sc_repq;
struct mpi_ccb *sc_evt_ccb;
size_t sc_fw_len;
struct mpi_dmamem *sc_fw;
/* scsi ioctl from sd device */
int (*sc_ioctl)(struct device *, u_long, caddr_t);
struct rwlock sc_lock;
struct mpi_cfg_hdr sc_cfg_hdr;
struct mpi_cfg_ioc_pg2 *sc_vol_page;
struct mpi_cfg_raid_vol *sc_vol_list;
struct mpi_cfg_raid_vol_pg0 *sc_rpg0;
struct ksensor *sc_sensors;
struct ksensordev sc_sensordev;
};
int mpi_attach(struct mpi_softc *);
void mpi_detach(struct mpi_softc *);
int mpi_intr(void *);
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