/* $NetBSD: iopvar.h,v 1.22 2008/09/08 23:36:54 gmcgarry Exp $ */ /*- * Copyright (c) 2000, 2001, 2002, 2007 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Andrew Doran. * * 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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. */ #ifndef _I2O_IOPVAR_H_ #define _I2O_IOPVAR_H_ #include #include /* * Transfer descriptor. */ struct iop_xfer { bus_dmamap_t ix_map; u_int ix_size; u_int ix_flags; }; #define IX_IN 0x0001 /* Data transfer from IOP */ #define IX_OUT 0x0002 /* Data transfer to IOP */ /* * Message wrapper. */ struct iop_msg { SLIST_ENTRY(iop_msg) im_chain; /* Next free message */ u_int im_flags; /* Control flags */ u_int im_tctx; /* Transaction context */ void *im_dvcontext; /* Un*x device context */ struct i2o_reply *im_rb; /* Reply buffer */ kcondvar_t im_cv; /* Notifier */ u_int im_reqstatus; /* Status from reply */ u_int im_detstatus; /* Detailed status code */ struct iop_xfer im_xfer[IOP_MAX_MSG_XFERS]; }; #define IM_SYSMASK 0x00ff #define IM_REPLIED 0x0001 /* Message has been replied to */ #define IM_ALLOCED 0x0002 /* This message wrapper is allocated */ #define IM_SGLOFFADJ 0x0004 /* S/G list offset adjusted */ #define IM_FAIL 0x0008 /* Transaction error returned */ #define IM_USERMASK 0xff00 #define IM_WAIT 0x0100 /* Wait (sleep) for completion */ #define IM_POLL 0x0200 /* Wait (poll) for completion */ #define IM_NOSTATUS 0x0400 /* Don't check status if waiting */ #define IM_POLL_INTR 0x0800 /* Do send interrupt when polling */ struct iop_initiator { LIST_ENTRY(iop_initiator) ii_list; LIST_ENTRY(iop_initiator) ii_hash; void (*ii_intr)(struct device *, struct iop_msg *, void *); int (*ii_reconfig)(struct device *); void (*ii_adjqparam)(struct device *, int); struct device *ii_dv; kcondvar_t ii_cv; int ii_flags; int ii_ictx; /* Initiator context */ int ii_tid; }; #define II_NOTCTX 0x0001 /* No transaction context */ #define II_CONFIGURED 0x0002 /* Already configured */ #define II_UTILITY 0x0004 /* Utility initiator (not a real device) */ #define IOP_ICTX 0 #define IOP_INIT_CODE 0x80 /* * Parameter group op (for async parameter retrievals). */ struct iop_pgop { struct i2o_param_op_list_header olh; struct i2o_param_op_all_template oat; } __packed; /* * Per-IOP context. */ struct iop_softc { struct device sc_dv; /* Generic device data */ bus_space_handle_t sc_ioh; /* Bus space handle */ bus_space_tag_t sc_iot; /* Bus space tag */ bus_dma_tag_t sc_dmat; /* Bus DMA tag */ bus_space_handle_t sc_msg_ioh; /* Message queue bus space handle */ bus_space_tag_t sc_msg_iot; /* Message queue bus space tag */ void *sc_ih; /* Interrupt handler cookie */ struct iop_msg *sc_ims; /* Message wrappers */ SLIST_HEAD(, iop_msg) sc_im_freelist; /* Free wrapper list */ kmutex_t sc_intrlock; /* Interrupt level lock */ bus_dmamap_t sc_rep_dmamap; /* Reply frames DMA map */ int sc_rep_size; /* Reply frames size */ bus_addr_t sc_rep_phys; /* Reply frames PA */ void * sc_rep; /* Reply frames VA */ int sc_maxib; /* Max inbound (-> IOP) queue depth */ int sc_maxob; /* Max outbound (<- IOP) queue depth */ int sc_curib; /* Current inbound queue depth */ int sc_framesize; /* Max msg frame size in bytes */ struct i2o_hrt *sc_hrt; /* Hardware resource table */ struct iop_tidmap *sc_tidmap; /* TID map (per-LCT-entry flags) */ struct i2o_lct *sc_lct; /* Logical configuration table */ int sc_nlctent; /* Number of LCT entries */ int sc_flags; /* IOP-wide flags */ u_int32_t sc_chgind; /* Configuration change indicator */ kmutex_t sc_conflock; /* Configuration lock */ kcondvar_t sc_confcv; /* Configuration CV */ lwp_t *sc_reconf_thread;/* Auto reconfiguration process */ LIST_HEAD(, iop_initiator) sc_iilist;/* Initiator list */ int sc_nii; /* Total number of initiators */ int sc_nuii; /* Number of utility initiators */ struct iop_initiator sc_eventii;/* IOP event handler */ bus_dmamap_t sc_scr_dmamap; /* Scratch DMA map */ bus_dma_segment_t sc_scr_seg[1];/* Scratch DMA segment */ void * sc_scr; /* Scratch memory VA */ bus_space_tag_t sc_bus_memt; /* Parent bus memory tag */ bus_space_tag_t sc_bus_iot; /* Parent but I/O tag */ bus_addr_t sc_memaddr; /* Register window address */ bus_size_t sc_memsize; /* Register window size */ int sc_pcibus; /* PCI bus number */ int sc_pcidev; /* PCI device number */ struct i2o_status sc_status; /* Last retrieved status record */ }; #define IOP_OPEN 0x01 /* Device interface open */ #define IOP_HAVESTATUS 0x02 /* Successfully retrieved status */ #define IOP_ONLINE 0x04 /* Can use ioctl interface */ struct iop_attach_args { int ia_class; /* device class */ int ia_tid; /* target ID */ }; void iop_init(struct iop_softc *, const char *); int iop_intr(void *); int iop_lct_get(struct iop_softc *); int iop_print_ident(struct iop_softc *, int); int iop_post(struct iop_softc *, u_int32_t *); int iop_reconfigure(struct iop_softc *, u_int); int iop_status_get(struct iop_softc *, int); int iop_simple_cmd(struct iop_softc *, int, int, int, int, int); void iop_strvis(struct iop_softc *, const char *, int, char *, int); void iop_initiator_register(struct iop_softc *, struct iop_initiator *); void iop_initiator_unregister(struct iop_softc *, struct iop_initiator *); struct iop_msg *iop_msg_alloc(struct iop_softc *, int); void iop_msg_free(struct iop_softc *, struct iop_msg *); int iop_msg_map(struct iop_softc *, struct iop_msg *, u_int32_t *, void *, int, int, struct proc *); int iop_msg_map_bio(struct iop_softc *, struct iop_msg *, u_int32_t *, void *, int, int); int iop_msg_post(struct iop_softc *, struct iop_msg *, void *, int); void iop_msg_unmap(struct iop_softc *, struct iop_msg *); int iop_field_get_all(struct iop_softc *, int, int, void *, int, struct iop_initiator *); int iop_field_set(struct iop_softc *, int, int, void *, int, int); int iop_table_add_row(struct iop_softc *, int, int, void *, int, int); int iop_table_clear(struct iop_softc *, int, int); int iop_table_del_row(struct iop_softc *, int, int, int); int iop_table_get_row(struct iop_softc *, int, int, void *, int, int); int iop_util_abort(struct iop_softc *, struct iop_initiator *, int, int, int); int iop_util_claim(struct iop_softc *, struct iop_initiator *, int, int); int iop_util_eventreg(struct iop_softc *, struct iop_initiator *, int); #endif /* !_I2O_IOPVAR_H_ */