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mfivar.h revision 1.3 
      1 /* $NetBSD: mfivar.h,v 1.3 2007/03/04 06:01:58 christos Exp $ */
      2 /* $OpenBSD: mfivar.h,v 1.28 2006/08/31 18:18:46 marco Exp $ */
      3 /*
      4  * Copyright (c) 2006 Marco Peereboom <marco (at) peereboom.us>
      5  *
      6  * Permission to use, copy, modify, and distribute this software for any
      7  * purpose with or without fee is hereby granted, provided that the above
      8  * copyright notice and this permission notice appear in all copies.
      9  *
     10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
     15  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
     16  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     17  */
     18 
     19 #define DEVNAME(_s)     ((_s)->sc_dev.dv_xname)
     20 
     21 /* #define MFI_DEBUG */
     22 #ifdef MFI_DEBUG
     23 extern uint32_t			mfi_debug;
     24 #define DPRINTF(x...)		do { if (mfi_debug) printf(x); } while(0)
     25 #define DNPRINTF(n,x...)	do { if (mfi_debug & n) printf(x); } while(0)
     26 #define	MFI_D_CMD		0x0001
     27 #define	MFI_D_INTR		0x0002
     28 #define	MFI_D_MISC		0x0004
     29 #define	MFI_D_DMA		0x0008
     30 #define	MFI_D_IOCTL		0x0010
     31 #define	MFI_D_RW		0x0020
     32 #define	MFI_D_MEM		0x0040
     33 #define	MFI_D_CCB		0x0080
     34 #else
     35 #define DPRINTF(x...)
     36 #define DNPRINTF(n,x...)
     37 #endif
     38 
     39 struct mfi_mem {
     40 	bus_dmamap_t		am_map;
     41 	bus_dma_segment_t	am_seg;
     42 	size_t			am_size;
     43 	void *			am_kva;
     44 };
     45 
     46 #define MFIMEM_MAP(_am)		((_am)->am_map)
     47 #define MFIMEM_DVA(_am)		((_am)->am_map->dm_segs[0].ds_addr)
     48 #define MFIMEM_KVA(_am)		((void *)(_am)->am_kva)
     49 
     50 struct mfi_prod_cons {
     51 	uint32_t		mpc_producer;
     52 	uint32_t		mpc_consumer;
     53 	uint32_t		mpc_reply_q[1]; /* compensate for 1 extra reply per spec */
     54 };
     55 
     56 struct mfi_ccb {
     57 	struct mfi_softc	*ccb_sc;
     58 
     59 	union mfi_frame		*ccb_frame;
     60 	paddr_t			ccb_pframe;
     61 	uint32_t		ccb_frame_size;
     62 	uint32_t		ccb_extra_frames;
     63 
     64 	struct mfi_sense	*ccb_sense;
     65 	paddr_t			ccb_psense;
     66 
     67 	bus_dmamap_t		ccb_dmamap;
     68 
     69 	union mfi_sgl		*ccb_sgl;
     70 
     71 	/* data for sgl */
     72 	void			*ccb_data;
     73 	uint32_t		ccb_len;
     74 
     75 	uint32_t		ccb_direction;
     76 #define MFI_DATA_NONE	0
     77 #define MFI_DATA_IN	1
     78 #define MFI_DATA_OUT	2
     79 
     80 	struct scsipi_xfer	*ccb_xs;
     81 
     82 	void			(*ccb_done)(struct mfi_ccb *);
     83 
     84 	volatile enum {
     85 		MFI_CCB_FREE,
     86 		MFI_CCB_READY,
     87 		MFI_CCB_DONE
     88 	}			ccb_state;
     89 	uint32_t		ccb_flags;
     90 #define MFI_CCB_F_ERR			(1<<0)
     91 	TAILQ_ENTRY(mfi_ccb)	ccb_link;
     92 };
     93 
     94 TAILQ_HEAD(mfi_ccb_list, mfi_ccb);
     95 
     96 struct mfi_softc {
     97 	struct device		sc_dev;
     98 	struct scsipi_channel	sc_chan;
     99 	struct scsipi_adapter	sc_adapt;
    100 
    101 	void			*sc_ih;
    102 
    103 	u_int32_t		sc_flags;
    104 
    105 	bus_space_tag_t		sc_iot;
    106 	bus_space_handle_t	sc_ioh;
    107 	bus_dma_tag_t		sc_dmat;
    108 
    109 	/* save some useful information for logical drives that is missing
    110 	 * in sc_ld_list
    111 	 */
    112 	struct {
    113 		uint32_t	ld_present;
    114 		char		ld_dev[16];	/* device name sd? */
    115 	}			sc_ld[MFI_MAX_LD];
    116 
    117 	/* scsi ioctl from sd device */
    118 	int			(*sc_ioctl)(struct device *, u_long, void *);
    119 
    120 	/* firmware determined max, totals and other information*/
    121 	uint32_t		sc_max_cmds;
    122 	uint32_t		sc_max_sgl;
    123 	uint32_t		sc_max_ld;
    124 	uint32_t		sc_ld_cnt;
    125 	/* XXX these struct should be local to mgmt function */
    126 	struct mfi_ctrl_info	sc_info;
    127 	struct mfi_ld_list	sc_ld_list;
    128 	struct mfi_ld_details	sc_ld_details;
    129 
    130 	/* all commands */
    131 	struct mfi_ccb		*sc_ccb;
    132 
    133 	/* producer/consumer pointers and reply queue */
    134 	struct mfi_mem		*sc_pcq;
    135 
    136 	/* frame memory */
    137 	struct mfi_mem		*sc_frames;
    138 	uint32_t		sc_frames_size;
    139 
    140 	/* sense memory */
    141 	struct mfi_mem		*sc_sense;
    142 
    143 	struct mfi_ccb_list	sc_ccb_freeq;
    144 
    145 	struct sensor		*sc_sensors;
    146 };
    147 
    148 int	mfi_attach(struct mfi_softc *sc);
    149 int	mfi_intr(void *);
    150