FreeBSD-5.3/sys/dev/mpt/mpt_freebsd.h
/* $FreeBSD: src/sys/dev/mpt/mpt_freebsd.h,v 1.9 2003/06/03 17:47:47 mjacob Exp $ */
/*
* LSI MPT Host Adapter FreeBSD Wrapper Definitions (CAM version)
*
* Copyright (c) 2000, 2001 by Greg Ansley, Adam Prewett
*
* Partially derived from Matty Jacobs ISP driver.
*
* 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 immediately at the beginning of the file, without modification,
* this list of conditions, and the following disclaimer.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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
*/
/*
* Additional Copyright (c) 2002 by Matthew Jacob under same license.
*/
#ifndef _MPT_FREEBSD_H_
#define _MPT_FREEBSD_H_
/* #define RELENG_4 1 */
#include <sys/param.h>
#include <sys/systm.h>
#ifdef RELENG_4
#include <sys/kernel.h>
#include <sys/queue.h>
#include <sys/malloc.h>
#else
#include <sys/endian.h>
#include <sys/lock.h>
#include <sys/kernel.h>
#include <sys/queue.h>
#include <sys/malloc.h>
#include <sys/mutex.h>
#include <sys/condvar.h>
#endif
#include <sys/proc.h>
#include <sys/bus.h>
#include <machine/bus_memio.h>
#include <machine/bus_pio.h>
#include <machine/bus.h>
#include <machine/clock.h>
#include <machine/cpu.h>
#include <cam/cam.h>
#include <cam/cam_debug.h>
#include <cam/cam_ccb.h>
#include <cam/cam_sim.h>
#include <cam/cam_xpt.h>
#include <cam/cam_xpt_sim.h>
#include <cam/cam_debug.h>
#include <cam/scsi/scsi_all.h>
#include <cam/scsi/scsi_message.h>
#include "opt_ddb.h"
#include "dev/mpt/mpilib/mpi_type.h"
#include "dev/mpt/mpilib/mpi.h"
#include "dev/mpt/mpilib/mpi_cnfg.h"
#include "dev/mpt/mpilib/mpi_fc.h"
#include "dev/mpt/mpilib/mpi_init.h"
#include "dev/mpt/mpilib/mpi_ioc.h"
#include "dev/mpt/mpilib/mpi_lan.h"
#include "dev/mpt/mpilib/mpi_targ.h"
#define INLINE __inline
#ifdef RELENG_4
#define MPT_IFLAGS INTR_TYPE_CAM
#define MPT_LOCK(mpt) mpt_lockspl(mpt)
#define MPT_UNLOCK(mpt) mpt_unlockspl(mpt)
#define MPTLOCK_2_CAMLOCK MPT_UNLOCK
#define CAMLOCK_2_MPTLOCK MPT_LOCK
#define MPT_LOCK_SETUP(mpt)
#define MPT_LOCK_DESTROY(mpt)
#else
#if LOCKING_WORKED_AS_IT_SHOULD
#define MPT_IFLAGS INTR_TYPE_CAM | INTR_ENTROPY | INTR_MPSAFE
#define MPT_LOCK_SETUP(mpt) \
mtx_init(&mpt->mpt_lock, "mpt", NULL, MTX_DEF); \
mpt->mpt_locksetup = 1
#define MPT_LOCK_DESTROY(mpt) \
if (mpt->mpt_locksetup) { \
mtx_destroy(&mpt->mpt_lock); \
mpt->mpt_locksetup = 0; \
}
#define MPT_LOCK(mpt) mtx_lock(&(mpt)->mpt_lock)
#define MPT_UNLOCK(mpt) mtx_unlock(&(mpt)->mpt_lock)
#define MPTLOCK_2_CAMLOCK(mpt) \
mtx_unlock(&(mpt)->mpt_lock); mtx_lock(&Giant)
#define CAMLOCK_2_MPTLOCK(mpt) \
mtx_unlock(&Giant); mtx_lock(&(mpt)->mpt_lock)
#else
#define MPT_IFLAGS INTR_TYPE_CAM | INTR_ENTROPY
#define MPT_LOCK_SETUP(mpt) do { } while (0)
#define MPT_LOCK_DESTROY(mpt) do { } while (0)
#define MPT_LOCK(mpt) do { } while (0)
#define MPT_UNLOCK(mpt) do { } while (0)
#define MPTLOCK_2_CAMLOCK(mpt) do { } while (0)
#define CAMLOCK_2_MPTLOCK(mpt) do { } while (0)
#endif
#endif
/* Max MPT Reply we are willing to accept (must be power of 2) */
#define MPT_REPLY_SIZE 128
#define MPT_MAX_REQUESTS(mpt) ((mpt)->is_fc? 1024 : 256)
#define MPT_REQUEST_AREA 512
#define MPT_SENSE_SIZE 32 /* included in MPT_REQUEST_SIZE */
#define MPT_REQ_MEM_SIZE(mpt) (MPT_MAX_REQUESTS(mpt) * MPT_REQUEST_AREA)
/*
* We cannot tell prior to getting IOC facts how big the IOC's request
* area is. Because of this we cannot tell at compile time how many
* simple SG elements we can fit within an IOC request prior to having
* to put in a chain element.
*
* Experimentally we know that the Ultra4 parts have a 96 byte request
* element size and the Fibre Channel units have a 144 byte request
* element size. Therefore, if we have 512-32 (== 480) bytes of request
* area to play with, we have room for between 3 and 5 request sized
* regions- the first of which is the command plus a simple SG list,
* the rest of which are chained continuation SG lists. Given that the
* normal request we use is 48 bytes w/o the first SG element, we can
* assume we have 480-48 == 432 bytes to have simple SG elements and/or
* chain elements. If we assume 32 bit addressing, this works out to
* 54 SG or chain elements. If we assume 5 chain elements, then we have
* a maximum of 49 seperate actual SG segments.
*/
#define MPT_SGL_MAX 49
#define MPT_RQSL(mpt) (mpt->request_frame_size << 2)
#define MPT_NSGL(mpt) (MPT_RQSL(mpt) / sizeof (SGE_SIMPLE32))
#define MPT_NSGL_FIRST(mpt) \
(((mpt->request_frame_size << 2) - \
sizeof (MSG_SCSI_IO_REQUEST) - \
sizeof (SGE_IO_UNION)) / sizeof (SGE_SIMPLE32))
/*
* Convert a physical address returned from IOC to kvm address
* needed to access the data.
*/
#define MPT_REPLY_PTOV(m, x) \
((void *)(&m->reply[((x << 1) - m->reply_phys)]))
#define ccb_mpt_ptr sim_priv.entries[0].ptr
#define ccb_req_ptr sim_priv.entries[1].ptr
enum mpt_req_state {
REQ_FREE, REQ_IN_PROGRESS, REQ_TIMEOUT, REQ_ON_CHIP, REQ_DONE
};
typedef struct req_entry {
u_int16_t index; /* Index of this entry */
union ccb * ccb; /* CAM request */
void * req_vbuf; /* Virtual Address of Entry */
void * sense_vbuf; /* Virtual Address of sense data */
bus_addr_t req_pbuf; /* Physical Address of Entry */
bus_addr_t sense_pbuf; /* Physical Address of sense data */
bus_dmamap_t dmap; /* DMA map for data buffer */
SLIST_ENTRY(req_entry) link; /* Pointer to next in list */
enum mpt_req_state debug; /* Debugging */
u_int32_t sequence; /* Sequence Number */
} request_t;
/* Structure for saving proper values for modifyable PCI configuration registers */
struct mpt_pci_cfg {
u_int16_t Command;
u_int16_t LatencyTimer_LineSize;
u_int32_t IO_BAR;
u_int32_t Mem0_BAR[2];
u_int32_t Mem1_BAR[2];
u_int32_t ROM_BAR;
u_int8_t IntLine;
u_int32_t PMCSR;
};
typedef struct mpt_softc {
device_t dev;
#ifdef RELENG_4
int mpt_splsaved;
u_int32_t mpt_islocked;
#else
struct mtx mpt_lock;
#endif
u_int32_t : 16,
unit : 8,
verbose : 3,
outofbeer : 1,
mpt_locksetup : 1,
disabled : 1,
is_fc : 1,
bus : 1; /* FC929/1030 have two busses */
/*
* IOC Facts
*/
u_int16_t mpt_global_credits;
u_int16_t request_frame_size;
u_int8_t mpt_max_devices;
u_int8_t mpt_max_buses;
/*
* Port Facts
*/
u_int16_t mpt_ini_id;
/*
* Device Configuration Information
*/
union {
struct mpt_spi_cfg {
CONFIG_PAGE_SCSI_PORT_0 _port_page0;
CONFIG_PAGE_SCSI_PORT_1 _port_page1;
CONFIG_PAGE_SCSI_PORT_2 _port_page2;
CONFIG_PAGE_SCSI_DEVICE_0 _dev_page0[16];
CONFIG_PAGE_SCSI_DEVICE_1 _dev_page1[16];
uint16_t _tag_enable;
uint16_t _disc_enable;
uint16_t _update_params0;
uint16_t _update_params1;
} spi;
#define mpt_port_page0 cfg.spi._port_page0
#define mpt_port_page1 cfg.spi._port_page1
#define mpt_port_page2 cfg.spi._port_page2
#define mpt_dev_page0 cfg.spi._dev_page0
#define mpt_dev_page1 cfg.spi._dev_page1
#define mpt_tag_enable cfg.spi._tag_enable
#define mpt_disc_enable cfg.spi._disc_enable
#define mpt_update_params0 cfg.spi._update_params0
#define mpt_update_params1 cfg.spi._update_params1
struct mpi_fc_cfg {
u_int8_t nada;
} fc;
} cfg;
/*
* PCI Hardware info
*/
struct resource * pci_irq; /* Interrupt map for chip */
void * ih; /* Interupt handle */
struct mpt_pci_cfg pci_cfg; /* saved PCI conf registers */
/*
* DMA Mapping Stuff
*/
struct resource * pci_reg; /* Register map for chip */
int pci_reg_id; /* Resource ID */
bus_space_tag_t pci_st; /* Bus tag for registers */
bus_space_handle_t pci_sh; /* Bus handle for registers */
vm_offset_t pci_pa; /* Physical Address */
bus_dma_tag_t parent_dmat; /* DMA tag for parent PCI bus */
bus_dma_tag_t reply_dmat; /* DMA tag for reply memory */
bus_dmamap_t reply_dmap; /* DMA map for reply memory */
char * reply; /* KVA of reply memory */
bus_addr_t reply_phys; /* BusAddr of reply memory */
bus_dma_tag_t buffer_dmat; /* DMA tag for buffers */
bus_dma_tag_t request_dmat; /* DMA tag for request memroy */
bus_dmamap_t request_dmap; /* DMA map for request memroy */
char * request; /* KVA of Request memory */
bus_addr_t request_phys; /* BusADdr of request memory */
/*
* CAM && Software Management
*/
request_t * request_pool;
SLIST_HEAD(req_queue, req_entry) request_free_list;
struct cam_sim * sim;
struct cam_path * path;
u_int32_t sequence; /* Sequence Number */
u_int32_t timeouts; /* timeout count */
u_int32_t success; /* successes afer timeout */
/* Opposing port in a 929 or 1030, or NULL */
struct mpt_softc * mpt2;
} mpt_softc_t;
#include <dev/mpt/mpt.h>
static INLINE void mpt_write(mpt_softc_t *, size_t, u_int32_t);
static INLINE u_int32_t mpt_read(mpt_softc_t *, int);
static INLINE void
mpt_write(mpt_softc_t *mpt, size_t offset, u_int32_t val)
{
bus_space_write_4(mpt->pci_st, mpt->pci_sh, offset, val);
}
static INLINE u_int32_t
mpt_read(mpt_softc_t *mpt, int offset)
{
return (bus_space_read_4(mpt->pci_st, mpt->pci_sh, offset));
}
void mpt_cam_attach(mpt_softc_t *);
void mpt_cam_detach(mpt_softc_t *);
void mpt_done(mpt_softc_t *, u_int32_t);
void mpt_prt(mpt_softc_t *, const char *, ...);
void mpt_set_config_regs(mpt_softc_t *);
#ifdef RELENG_4
static INLINE void mpt_lockspl(mpt_softc_t *);
static INLINE void mpt_unlockspl(mpt_softc_t *);
static INLINE void
mpt_lockspl(mpt_softc_t *mpt)
{
int s = splcam();
if (mpt->mpt_islocked++ == 0) {
mpt->mpt_splsaved = s;
} else {
splx(s);
}
}
static INLINE void
mpt_unlockspl(mpt_softc_t *mpt)
{
if (mpt->mpt_islocked) {
if (--mpt->mpt_islocked == 0) {
splx(mpt->mpt_splsaved);
}
}
}
#endif
#endif /* _MPT_FREEBSD_H */