diff options
Diffstat (limited to 'sys/dev/amr/amrvar.h')
| -rw-r--r-- | sys/dev/amr/amrvar.h | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/sys/dev/amr/amrvar.h b/sys/dev/amr/amrvar.h new file mode 100644 index 0000000..c35d5db --- /dev/null +++ b/sys/dev/amr/amrvar.h @@ -0,0 +1,216 @@ +/*- + * Copyright (c) 1999 Michael Smith + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +/* + * We could actually use all 17 segments, but using only 16 means that + * each scatter/gather map is 128 bytes in size, and thus we don't have to worry about + * maps crossing page boundaries. + */ +#define AMR_NSEG 16 + +#define AMR_CFG_BASE 0x10 +#define AMR_CFG_SIG 0xa0 +#define AMR_SIGNATURE 0x3344 + +#define AMR_MAXCMD 255 /* ident = 0 not allowed */ +#define AMR_MAXLD 40 + +#define AMR_BLKSIZE 512 + +struct amr_softc; + +/* + * Per-logical-drive datastructure + */ +struct amr_logdrive +{ + u_int32_t al_size; + int al_state; + int al_properties; + + /* synthetic geometry */ + int al_cylinders; + int al_heads; + int al_sectors; + + /* driver */ + device_t al_disk; +}; + + +/* + * Per-command control structure. + */ +struct amr_command +{ + TAILQ_ENTRY(amr_command) ac_link; + + struct amr_softc *ac_sc; + u_int8_t ac_slot; + int ac_status; +#define AMR_STATUS_BUSY 0xffff +#define AMR_STATUS_WEDGED 0xdead + struct amr_mailbox ac_mailbox; + u_int32_t ac_sgphys; + int ac_nsgent; + int ac_flags; +#define AMR_CMD_DATAIN (1<<0) +#define AMR_CMD_DATAOUT (1<<1) +#define AMR_CMD_PRIORITY (1<<2) + time_t ac_stamp; + + void *ac_data; + size_t ac_length; + bus_dmamap_t ac_dmamap; + u_int32_t ac_dataphys; + + void (* ac_complete)(struct amr_command *ac); + void *ac_private; +}; + +struct amr_softc +{ + /* bus attachments */ + device_t amr_dev; + struct resource *amr_reg; /* control registers */ + bus_space_handle_t amr_bhandle; + bus_space_tag_t amr_btag; + bus_dma_tag_t amr_parent_dmat; /* parent DMA tag */ + bus_dma_tag_t amr_buffer_dmat; /* data buffer DMA tag */ + struct resource *amr_irq; /* interrupt */ + void *amr_intr; + + /* mailbox */ + struct amr_mailbox *amr_mailbox; + struct amr_mailbox64 *amr_mailbox64; + u_int32_t amr_mailboxphys; + bus_dma_tag_t amr_mailbox_dmat; + bus_dmamap_t amr_mailbox_dmamap; + + /* scatter/gather lists and their controller-visible mappings */ + struct amr_sgentry *amr_sgtable; /* s/g lists */ + u_int32_t amr_sgbusaddr; /* s/g table base address in bus space */ + bus_dma_tag_t amr_sg_dmat; /* s/g buffer DMA tag */ + bus_dmamap_t amr_sg_dmamap; /* map for s/g buffers */ + + /* controller limits and features */ + int amr_maxio; /* maximum number of I/O transactions */ + int amr_maxdrives; /* max number of logical drives */ + + /* connected logical drives */ + struct amr_logdrive amr_drive[AMR_MAXLD]; + + /* controller status */ + int amr_state; +#define AMR_STATE_OPEN (1<<0) +#define AMR_STATE_SUSPEND (1<<1) +#define AMR_STATE_INTEN (1<<2) +#define AMR_STATE_SHUTDOWN (1<<3) + + /* per-controller queues */ + struct buf_queue_head amr_bufq; /* pending I/O */ + int amr_waitbufs; + struct amr_command *amr_busycmd[AMR_MAXCMD]; + int amr_busycmdcount; + TAILQ_HEAD(,amr_command) amr_donecmds; + int amr_donecmdcount; + TAILQ_HEAD(,amr_command) amr_freecmds; + + /* controller type-specific support */ + int amr_type; +#define AMR_TYPE_STD 0 +#define AMR_TYPE_QUARTZ 1 + void (* amr_submit_command)(struct amr_softc *sc); + int (* amr_get_work)(struct amr_softc *sc, struct amr_mailbox *mbsave); + void (* amr_attach_mailbox)(struct amr_softc *sc); +}; + +/* + * I/O primitives + */ +/* Quartz */ +#define AMR_QPUT_IDB(sc, val) bus_space_write_4(sc->amr_btag, sc->amr_bhandle, AMR_QIDB, val) +#define AMR_QGET_IDB(sc) bus_space_read_4 (sc->amr_btag, sc->amr_bhandle, AMR_QIDB) +#define AMR_QPUT_ODB(sc, val) bus_space_write_4(sc->amr_btag, sc->amr_bhandle, AMR_QODB, val) +#define AMR_QGET_ODB(sc) bus_space_read_4 (sc->amr_btag, sc->amr_bhandle, AMR_QODB) + +/* Standard */ +#define AMR_SPUT_ISTAT(sc, val) bus_space_write_1(sc->amr_btag, sc->amr_bhandle, AMR_SINTR, val) +#define AMR_SGET_ISTAT(sc) bus_space_read_1 (sc->amr_btag, sc->amr_bhandle, AMR_SINTR) +#define AMR_SACK_INTERRUPT(sc) bus_space_write_1(sc->amr_btag, sc->amr_bhandle, AMR_SCMD, AMR_SCMD_ACKINTR) +#define AMR_SPOST_COMMAND(sc) bus_space_write_1(sc->amr_btag, sc->amr_bhandle, AMR_SCMD, AMR_SCMD_POST) +#define AMR_SGET_MBSTAT(sc) bus_space_read_1 (sc->amr_btag, sc->amr_bhandle, AMR_SMBOX_BUSY) +#define AMR_SENABLE_INTR(sc) \ + bus_space_write_1(sc->amr_btag, sc->amr_bhandle, AMR_STOGGLE, \ + bus_space_read_1(sc->amr_btag, sc->amr_bhandle, AMR_STOGGLE) | AMR_STOGL_IENABLE) +#define AMR_SDISABLE_INTR(sc) \ + bus_space_write_1(sc->amr_btag, sc->amr_bhandle, AMR_STOGGLE, \ + bus_space_read_1(sc->amr_btag, sc->amr_bhandle, AMR_STOGGLE) & ~AMR_STOGL_IENABLE) +#define AMR_SBYTE_SET(sc, reg, val) bus_space_write_1(sc->amr_btag, sc->amr_bhandle, reg, val) + +/* + * Interface between bus connections and driver core. + */ +extern void amr_free(struct amr_softc *sc); +extern int amr_attach(struct amr_softc *sc); +extern void amr_startup(struct amr_softc *sc); +extern void amr_intr(void *data); +extern int amr_detach(device_t dev); +extern int amr_shutdown(device_t dev); +extern int amr_suspend(device_t dev); +extern int amr_resume(device_t dev); +extern d_open_t amr_open; +extern d_close_t amr_close; +extern d_ioctl_t amr_ioctl; + +extern devclass_t amr_devclass; + +/* + * MegaRAID logical disk driver + */ +struct amrd_softc +{ + device_t amrd_dev; + struct amr_softc *amrd_controller; + struct amr_logdrive *amrd_drive; + struct disk amrd_disk; + struct devstat amrd_stats; + struct disklabel amrd_label; + int amrd_unit; + int amrd_flags; +#define AMRD_OPEN (1<<0) /* drive is open (can't shut down) */ +}; + +/* + * Interface between driver core and disk driver (should be using a bus?) + */ +extern int amr_submit_buf(struct amr_softc *sc, struct buf *bp); +extern int amr_submit_ioctl(struct amr_softc *sc, struct amr_logdrive *drive, u_long cmd, + caddr_t addr, int32_t flag, struct proc *p); +extern void amrd_intr(void *data); + |
