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mfivar.h revision 1.2.4.2 
      1 /* $OpenBSD: mfivar.h,v 1.28 2006/08/31 18:18:46 marco Exp $ */
      2 /*
      3  * Copyright (c) 2006 Marco Peereboom <marco (at) peereboom.us>
      4  *
      5  * Permission to use, copy, modify, and distribute this software for any
      6  * purpose with or without fee is hereby granted, provided that the above
      7  * copyright notice and this permission notice appear in all copies.
      8  *
      9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
     14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
     15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     16  */
     17 
     18 #define DEVNAME(_s)     ((_s)->sc_dev.dv_xname)
     19 
     20 /* #define MFI_DEBUG */
     21 #ifdef MFI_DEBUG
     22 extern uint32_t			mfi_debug;
     23 #define DPRINTF(x...)		do { if (mfi_debug) printf(x); } while(0)
     24 #define DNPRINTF(n,x...)	do { if (mfi_debug & n) printf(x); } while(0)
     25 #define	MFI_D_CMD		0x0001
     26 #define	MFI_D_INTR		0x0002
     27 #define	MFI_D_MISC		0x0004
     28 #define	MFI_D_DMA		0x0008
     29 #define	MFI_D_IOCTL		0x0010
     30 #define	MFI_D_RW		0x0020
     31 #define	MFI_D_MEM		0x0040
     32 #define	MFI_D_CCB		0x0080
     33 #else
     34 #define DPRINTF(x...)
     35 #define DNPRINTF(n,x...)
     36 #endif
     37 
     38 struct mfi_mem {
     39 	bus_dmamap_t		am_map;
     40 	bus_dma_segment_t	am_seg;
     41 	size_t			am_size;
     42 	caddr_t			am_kva;
     43 };
     44 
     45 #define MFIMEM_MAP(_am)		((_am)->am_map)
     46 #define MFIMEM_DVA(_am)		((_am)->am_map->dm_segs[0].ds_addr)
     47 #define MFIMEM_KVA(_am)		((void *)(_am)->am_kva)
     48 
     49 struct mfi_prod_cons {
     50 	uint32_t		mpc_producer;
     51 	uint32_t		mpc_consumer;
     52 	uint32_t		mpc_reply_q[1]; /* compensate for 1 extra reply per spec */
     53 };
     54 
     55 struct mfi_ccb {
     56 	struct mfi_softc	*ccb_sc;
     57 
     58 	union mfi_frame		*ccb_frame;
     59 	paddr_t			ccb_pframe;
     60 	uint32_t		ccb_frame_size;
     61 	uint32_t		ccb_extra_frames;
     62 
     63 	struct mfi_sense	*ccb_sense;
     64 	paddr_t			ccb_psense;
     65 
     66 	bus_dmamap_t		ccb_dmamap;
     67 
     68 	union mfi_sgl		*ccb_sgl;
     69 
     70 	/* data for sgl */
     71 	void			*ccb_data;
     72 	uint32_t		ccb_len;
     73 
     74 	uint32_t		ccb_direction;
     75 #define MFI_DATA_NONE	0
     76 #define MFI_DATA_IN	1
     77 #define MFI_DATA_OUT	2
     78 
     79 	struct scsipi_xfer	*ccb_xs;
     80 
     81 	void			(*ccb_done)(struct mfi_ccb *);
     82 
     83 	volatile enum {
     84 		MFI_CCB_FREE,
     85 		MFI_CCB_READY,
     86 		MFI_CCB_DONE
     87 	}			ccb_state;
     88 	uint32_t		ccb_flags;
     89 #define MFI_CCB_F_ERR			(1<<0)
     90 	TAILQ_ENTRY(mfi_ccb)	ccb_link;
     91 };
     92 
     93 TAILQ_HEAD(mfi_ccb_list, mfi_ccb);
     94 
     95 struct mfi_softc {
     96 	struct device		sc_dev;
     97 	struct scsipi_channel	sc_chan;
     98 	struct scsipi_adapter	sc_adapt;
     99 
    100 	void			*sc_ih;
    101 
    102 	u_int32_t		sc_flags;
    103 
    104 	bus_space_tag_t		sc_iot;
    105 	bus_space_handle_t	sc_ioh;
    106 	bus_dma_tag_t		sc_dmat;
    107 
    108 	/* save some useful information for logical drives that is missing
    109 	 * in sc_ld_list
    110 	 */
    111 	struct {
    112 		uint32_t	ld_present;
    113 		char		ld_dev[16];	/* device name sd? */
    114 	}			sc_ld[MFI_MAX_LD];
    115 
    116 	/* scsi ioctl from sd device */
    117 	int			(*sc_ioctl)(struct device *, u_long, caddr_t);
    118 
    119 	/* firmware determined max, totals and other information*/
    120 	uint32_t		sc_max_cmds;
    121 	uint32_t		sc_max_sgl;
    122 	uint32_t		sc_max_ld;
    123 	uint32_t		sc_ld_cnt;
    124 	/* XXX these struct should be local to mgmt function */
    125 	struct mfi_ctrl_info	sc_info;
    126 	struct mfi_ld_list	sc_ld_list;
    127 	struct mfi_ld_details	sc_ld_details;
    128 
    129 	/* all commands */
    130 	struct mfi_ccb		*sc_ccb;
    131 
    132 	/* producer/consumer pointers and reply queue */
    133 	struct mfi_mem		*sc_pcq;
    134 
    135 	/* frame memory */
    136 	struct mfi_mem		*sc_frames;
    137 	uint32_t		sc_frames_size;
    138 
    139 	/* sense memory */
    140 	struct mfi_mem		*sc_sense;
    141 
    142 	struct mfi_ccb_list	sc_ccb_freeq;
    143 
    144 	struct sensor		*sc_sensors;
    145 };
    146 
    147 int	mfi_attach(struct mfi_softc *sc);
    148 int	mfi_intr(void *);
    149