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freebsd-nq/sys/dev/isp/isp_freebsd.h
Matt Jacob f7c631bcf0 Push things closer to path failover by implementing loop down and 
gone device timers and zombie state entries. There are tunables
that can be used to select a number of parameters.

loop_down_limit - how long to wait for loop to come back up before
declaring
all devices dead (default 300 seconds)

gone_device_time- how long to wait for a device that has appeared
to leave the loop or fabric to reappear (default 30 seconds)

Internal tunables include (which should be externalized):

quick_boot_time- how long to wait when booting for loop to come up

change_is_bad- whether or not to accept devices with the same
WWNN/WWPN that reappear at a different PortID as being the 'same'
device.

Keen students of some of the subtle issues here will ask how
one can keep devices from being re-accepted at all (the answer
is to set a gone_device_time to zero- that effectively would
be the same thing).
2006-11-14 08:45:48 +00:00

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/* $FreeBSD$ */
/*-
* Qlogic ISP SCSI Host Adapter FreeBSD Wrapper Definitions
*
* Copyright (c) 1997-2006 by Matthew Jacob
* 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 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
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _ISP_FREEBSD_H
#define _ISP_FREEBSD_H
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/endian.h>
#if __FreeBSD_version < 500000
#include <sys/kernel.h>
#include <sys/queue.h>
#include <sys/malloc.h>
#else
#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.h>
#if __FreeBSD_version < 500000
#include <machine/clock.h>
#endif
#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 "opt_isp.h"
#if __FreeBSD_version < 500000
#define ISP_PLATFORM_VERSION_MAJOR 4
#define ISP_PLATFORM_VERSION_MINOR 17
#else
#define ISP_PLATFORM_VERSION_MAJOR 5
#define ISP_PLATFORM_VERSION_MINOR 9
#endif
/*
* Efficiency- get rid of SBus code && tests unless we need them.
*/
#ifdef __sparc64__
#define ISP_SBUS_SUPPORTED 1
#else
#define ISP_SBUS_SUPPORTED 0
#endif
#define HANDLE_LOOPSTATE_IN_OUTER_LAYERS 1
/* #define ISP_SMPLOCK 1 */
#if __FreeBSD_version < 500000
#define ISP_IFLAGS INTR_TYPE_CAM
#else
#ifdef ISP_SMPLOCK
#define ISP_IFLAGS INTR_TYPE_CAM | INTR_ENTROPY | INTR_MPSAFE
#else
#define ISP_IFLAGS INTR_TYPE_CAM | INTR_ENTROPY
#endif
#endif
#if __FreeBSD_version < 700000
typedef void ispfwfunc(int, int, int, uint16_t **);
#endif
#ifdef ISP_TARGET_MODE
#define ISP_TARGET_FUNCTIONS 1
#define ATPDPSIZE 256
typedef struct {
uint32_t orig_datalen;
uint32_t bytes_xfered;
uint32_t last_xframt;
uint32_t tag : 16,
lun : 13, /* not enough */
state : 3;
} atio_private_data_t;
#define ATPD_STATE_FREE 0
#define ATPD_STATE_ATIO 1
#define ATPD_STATE_CAM 2
#define ATPD_STATE_CTIO 3
#define ATPD_STATE_LAST_CTIO 4
#define ATPD_STATE_PDON 5
typedef struct tstate {
struct tstate *next;
struct cam_path *owner;
struct ccb_hdr_slist atios;
struct ccb_hdr_slist inots;
lun_id_t lun;
int bus;
uint32_t hold;
int atio_count;
int inot_count;
} tstate_t;
#define LUN_HASH_SIZE 32
#define LUN_HASH_FUNC(isp, port, lun) \
((IS_DUALBUS(isp)) ? \
(((lun) & ((LUN_HASH_SIZE >> 1) - 1)) << (port)) : \
((lun) & (LUN_HASH_SIZE - 1)))
#endif
struct isposinfo {
struct ispsoftc * next;
uint64_t default_port_wwn;
uint64_t default_node_wwn;
uint32_t default_id;
device_t dev;
struct cam_sim *sim;
struct cam_path *path;
struct cam_sim *sim2;
struct cam_path *path2;
struct intr_config_hook ehook;
uint32_t loop_down_time;
uint32_t loop_down_limit;
uint32_t gone_device_time;
uint32_t : 5,
simqfrozen : 3,
hysteresis : 8,
gdt_running : 1,
ldt_running : 1,
disabled : 1,
fcbsy : 1,
mbox_sleeping : 1,
mbox_sleep_ok : 1,
mboxcmd_done : 1,
mboxbsy : 1;
struct callout_handle ldt; /* loop down timer */
struct callout_handle gdt; /* gone device timer */
#if __FreeBSD_version >= 500000
struct firmware * fw;
struct mtx lock;
struct cv kthread_cv;
union {
struct {
char wwnn[17];
char wwpn[17];
} fc;
} sysctl_info;
#endif
struct proc *kproc;
bus_dma_tag_t cdmat;
bus_dmamap_t cdmap;
#define isp_cdmat isp_osinfo.cdmat
#define isp_cdmap isp_osinfo.cdmap
#ifdef ISP_TARGET_MODE
#define TM_WILDCARD_ENABLED 0x02
#define TM_TMODE_ENABLED 0x01
uint8_t tmflags[2]; /* two busses */
#define NLEACT 4
union ccb * leact[NLEACT];
tstate_t tsdflt[2]; /* two busses */
tstate_t *lun_hash[LUN_HASH_SIZE];
atio_private_data_t atpdp[ATPDPSIZE];
#endif
};
#define isp_lock isp_osinfo.lock
/*
* Locking macros...
*/
#ifdef ISP_SMPLOCK
#define ISP_LOCK(x) mtx_lock(&(x)->isp_lock)
#define ISP_UNLOCK(x) mtx_unlock(&(x)->isp_lock)
#define ISPLOCK_2_CAMLOCK(isp) \
mtx_unlock(&(isp)->isp_lock); mtx_lock(&Giant)
#define CAMLOCK_2_ISPLOCK(isp) \
mtx_unlock(&Giant); mtx_lock(&(isp)->isp_lock)
#else
#if __FreeBSD_version < 500000
#define ISP_LOCK(x) do { } while (0)
#define ISP_UNLOCK(x) do { } while (0)
#define ISPLOCK_2_CAMLOCK(isp) do { } while (0)
#define CAMLOCK_2_ISPLOCK(isp) do { } while (0)
#else
#define ISP_LOCK(x) GIANT_REQUIRED
#define ISP_UNLOCK(x) do { } while (0)
#define ISPLOCK_2_CAMLOCK(isp) do { } while (0)
#define CAMLOCK_2_ISPLOCK(isp) GIANT_REQUIRED
#endif
#endif
/*
* Required Macros/Defines
*/
#define ISP2100_SCRLEN 0x1000
#define MEMZERO(a, b) memset(a, 0, b)
#define MEMCPY memcpy
#define SNPRINTF snprintf
#define USEC_DELAY DELAY
#define USEC_SLEEP(isp, x) DELAY(x)
#define NANOTIME_T struct timespec
#define GET_NANOTIME nanotime
#define GET_NANOSEC(x) ((x)->tv_sec * 1000000000 + (x)->tv_nsec)
#define NANOTIME_SUB isp_nanotime_sub
#define MAXISPREQUEST(isp) ((IS_FC(isp) || IS_ULTRA2(isp))? 1024 : 256)
#define MEMORYBARRIER(isp, type, offset, size) \
switch (type) { \
case SYNC_SFORDEV: \
case SYNC_REQUEST: \
bus_dmamap_sync(isp->isp_cdmat, isp->isp_cdmap, \
BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); \
break; \
case SYNC_SFORCPU: \
case SYNC_RESULT: \
bus_dmamap_sync(isp->isp_cdmat, isp->isp_cdmap, \
BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); \
break; \
default: \
break; \
}
#define MBOX_ACQUIRE isp_mbox_acquire
#define MBOX_WAIT_COMPLETE isp_mbox_wait_complete
#define MBOX_NOTIFY_COMPLETE isp_mbox_notify_done
#define MBOX_RELEASE isp_mbox_release
#define FC_SCRATCH_ACQUIRE(isp) \
if (isp->isp_osinfo.fcbsy) { \
isp_prt(isp, ISP_LOGWARN, \
"FC scratch area busy (line %d)!", __LINE__); \
} else \
isp->isp_osinfo.fcbsy = 1
#define FC_SCRATCH_RELEASE(isp) isp->isp_osinfo.fcbsy = 0
#ifndef SCSI_GOOD
#define SCSI_GOOD SCSI_STATUS_OK
#endif
#ifndef SCSI_CHECK
#define SCSI_CHECK SCSI_STATUS_CHECK_COND
#endif
#ifndef SCSI_BUSY
#define SCSI_BUSY SCSI_STATUS_BUSY
#endif
#ifndef SCSI_QFULL
#define SCSI_QFULL SCSI_STATUS_QUEUE_FULL
#endif
#define XS_T struct ccb_scsiio
#define XS_DMA_ADDR_T bus_addr_t
#define XS_ISP(ccb) ((ispsoftc_t *) (ccb)->ccb_h.spriv_ptr1)
#define XS_CHANNEL(ccb) cam_sim_bus(xpt_path_sim((ccb)->ccb_h.path))
#define XS_TGT(ccb) (ccb)->ccb_h.target_id
#define XS_LUN(ccb) (ccb)->ccb_h.target_lun
#define XS_CDBP(ccb) \
(((ccb)->ccb_h.flags & CAM_CDB_POINTER)? \
(ccb)->cdb_io.cdb_ptr : (ccb)->cdb_io.cdb_bytes)
#define XS_CDBLEN(ccb) (ccb)->cdb_len
#define XS_XFRLEN(ccb) (ccb)->dxfer_len
#define XS_TIME(ccb) (ccb)->ccb_h.timeout
#define XS_RESID(ccb) (ccb)->resid
#define XS_STSP(ccb) (&(ccb)->scsi_status)
#define XS_SNSP(ccb) (&(ccb)->sense_data)
#define XS_SNSLEN(ccb) \
imin((sizeof((ccb)->sense_data)), ccb->sense_len)
#define XS_SNSKEY(ccb) ((ccb)->sense_data.flags & 0xf)
#define XS_TAG_P(ccb) \
(((ccb)->ccb_h.flags & CAM_TAG_ACTION_VALID) && \
(ccb)->tag_action != CAM_TAG_ACTION_NONE)
#define XS_TAG_TYPE(ccb) \
((ccb->tag_action == MSG_SIMPLE_Q_TAG)? REQFLAG_STAG : \
((ccb->tag_action == MSG_HEAD_OF_Q_TAG)? REQFLAG_HTAG : REQFLAG_OTAG))
#define XS_SETERR(ccb, v) (ccb)->ccb_h.status &= ~CAM_STATUS_MASK, \
(ccb)->ccb_h.status |= v, \
(ccb)->ccb_h.spriv_field0 |= ISP_SPRIV_ERRSET
# define HBA_NOERROR CAM_REQ_INPROG
# define HBA_BOTCH CAM_UNREC_HBA_ERROR
# define HBA_CMDTIMEOUT CAM_CMD_TIMEOUT
# define HBA_SELTIMEOUT CAM_SEL_TIMEOUT
# define HBA_TGTBSY CAM_SCSI_STATUS_ERROR
# define HBA_BUSRESET CAM_SCSI_BUS_RESET
# define HBA_ABORTED CAM_REQ_ABORTED
# define HBA_DATAOVR CAM_DATA_RUN_ERR
# define HBA_ARQFAIL CAM_AUTOSENSE_FAIL
#define XS_ERR(ccb) ((ccb)->ccb_h.status & CAM_STATUS_MASK)
#define XS_NOERR(ccb) \
(((ccb)->ccb_h.spriv_field0 & ISP_SPRIV_ERRSET) == 0 || \
((ccb)->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INPROG)
#define XS_INITERR(ccb) \
XS_SETERR(ccb, CAM_REQ_INPROG), (ccb)->ccb_h.spriv_field0 = 0
#define XS_SAVE_SENSE(xs, sense_ptr, sense_len) \
(xs)->ccb_h.status |= CAM_AUTOSNS_VALID; \
memcpy(&(xs)->sense_data, sense_ptr, imin(XS_SNSLEN(xs), sense_len))
#define XS_SET_STATE_STAT(a, b, c)
#define DEFAULT_IID(x) (isp)->isp_osinfo.default_id
#define DEFAULT_LOOPID(x) (isp)->isp_osinfo.default_id
#define DEFAULT_NODEWWN(isp) (isp)->isp_osinfo.default_node_wwn
#define DEFAULT_PORTWWN(isp) (isp)->isp_osinfo.default_port_wwn
#define ISP_NODEWWN(isp) FCPARAM(isp)->isp_nodewwn
#define ISP_PORTWWN(isp) FCPARAM(isp)->isp_portwwn
#if BYTE_ORDER == BIG_ENDIAN
#ifdef ISP_SBUS_SUPPORTED
#define ISP_IOXPUT_8(isp, s, d) *(d) = s
#define ISP_IOXPUT_16(isp, s, d) \
*(d) = (isp->isp_bustype == ISP_BT_SBUS)? s : bswap16(s)
#define ISP_IOXPUT_32(isp, s, d) \
*(d) = (isp->isp_bustype == ISP_BT_SBUS)? s : bswap32(s)
#define ISP_IOXGET_8(isp, s, d) d = (*((uint8_t *)s))
#define ISP_IOXGET_16(isp, s, d) \
d = (isp->isp_bustype == ISP_BT_SBUS)? \
*((uint16_t *)s) : bswap16(*((uint16_t *)s))
#define ISP_IOXGET_32(isp, s, d) \
d = (isp->isp_bustype == ISP_BT_SBUS)? \
*((uint32_t *)s) : bswap32(*((uint32_t *)s))
#else /* ISP_SBUS_SUPPORTED */
#define ISP_IOXPUT_8(isp, s, d) *(d) = s
#define ISP_IOXPUT_16(isp, s, d) *(d) = bswap16(s)
#define ISP_IOXPUT_32(isp, s, d) *(d) = bswap32(s)
#define ISP_IOXGET_8(isp, s, d) d = (*((uint8_t *)s))
#define ISP_IOXGET_16(isp, s, d) d = bswap16(*((uint16_t *)s))
#define ISP_IOXGET_32(isp, s, d) d = bswap32(*((uint32_t *)s))
#endif
#define ISP_SWIZZLE_NVRAM_WORD(isp, rp) *rp = bswap16(*rp)
#define ISP_IOZGET_8(isp, s, d) d = (*((uint8_t *)s))
#define ISP_IOZGET_16(isp, s, d) d = (*((uint16_t *)s))
#define ISP_IOZGET_32(isp, s, d) d = (*((uint32_t *)s))
#define ISP_IOZPUT_8(isp, s, d) *(d) = s
#define ISP_IOZPUT_16(isp, s, d) *(d) = s
#define ISP_IOZPUT_32(isp, s, d) *(d) = s
#else
#define ISP_IOXPUT_8(isp, s, d) *(d) = s
#define ISP_IOXPUT_16(isp, s, d) *(d) = s
#define ISP_IOXPUT_32(isp, s, d) *(d) = s
#define ISP_IOXGET_8(isp, s, d) d = *(s)
#define ISP_IOXGET_16(isp, s, d) d = *(s)
#define ISP_IOXGET_32(isp, s, d) d = *(s)
#define ISP_SWIZZLE_NVRAM_WORD(isp, rp)
#define ISP_IOZPUT_8(isp, s, d) *(d) = s
#define ISP_IOZPUT_16(isp, s, d) *(d) = bswap16(s)
#define ISP_IOZPUT_32(isp, s, d) *(d) = bswap32(s)
#define ISP_IOZGET_8(isp, s, d) d = (*((uint8_t *)(s)))
#define ISP_IOZGET_16(isp, s, d) d = bswap16(*((uint16_t *)(s)))
#define ISP_IOZGET_32(isp, s, d) d = bswap32(*((uint32_t *)(s)))
#endif
/*
* Includes of common header files
*/
#include <dev/isp/ispreg.h>
#include <dev/isp/ispvar.h>
#include <dev/isp/ispmbox.h>
#ifdef ISP_TARGET_MODE
#include <dev/isp/isp_tpublic.h>
#endif
/*
* isp_osinfo definiitions && shorthand
*/
#define SIMQFRZ_RESOURCE 0x1
#define SIMQFRZ_LOOPDOWN 0x2
#define SIMQFRZ_TIMED 0x4
#define isp_sim isp_osinfo.sim
#define isp_path isp_osinfo.path
#define isp_sim2 isp_osinfo.sim2
#define isp_path2 isp_osinfo.path2
#define isp_dev isp_osinfo.dev
/*
* prototypes for isp_pci && isp_freebsd to share
*/
extern void isp_attach(ispsoftc_t *);
extern void isp_uninit(ispsoftc_t *);
/*
* driver global data
*/
extern int isp_announced;
extern int isp_fabric_hysteresis;
extern int isp_loop_down_limit;
extern int isp_gone_device_time;
extern int isp_quickboot_time;
/*
* Platform private flags
*/
#define ISP_SPRIV_ERRSET 0x1
#define ISP_SPRIV_INWDOG 0x2
#define ISP_SPRIV_GRACE 0x4
#define ISP_SPRIV_DONE 0x8
#define XS_CMD_S_WDOG(sccb) (sccb)->ccb_h.spriv_field0 |= ISP_SPRIV_INWDOG
#define XS_CMD_C_WDOG(sccb) (sccb)->ccb_h.spriv_field0 &= ~ISP_SPRIV_INWDOG
#define XS_CMD_WDOG_P(sccb) ((sccb)->ccb_h.spriv_field0 & ISP_SPRIV_INWDOG)
#define XS_CMD_S_GRACE(sccb) (sccb)->ccb_h.spriv_field0 |= ISP_SPRIV_GRACE
#define XS_CMD_C_GRACE(sccb) (sccb)->ccb_h.spriv_field0 &= ~ISP_SPRIV_GRACE
#define XS_CMD_GRACE_P(sccb) ((sccb)->ccb_h.spriv_field0 & ISP_SPRIV_GRACE)
#define XS_CMD_S_DONE(sccb) (sccb)->ccb_h.spriv_field0 |= ISP_SPRIV_DONE
#define XS_CMD_C_DONE(sccb) (sccb)->ccb_h.spriv_field0 &= ~ISP_SPRIV_DONE
#define XS_CMD_DONE_P(sccb) ((sccb)->ccb_h.spriv_field0 & ISP_SPRIV_DONE)
#define XS_CMD_S_CLEAR(sccb) (sccb)->ccb_h.spriv_field0 = 0
/*
* Platform Library Functions
*/
void isp_prt(ispsoftc_t *, int level, const char *, ...) __printflike(3, 4);
uint64_t isp_nanotime_sub(struct timespec *, struct timespec *);
int isp_mbox_acquire(ispsoftc_t *);
void isp_mbox_wait_complete(ispsoftc_t *, mbreg_t *);
void isp_mbox_notify_done(ispsoftc_t *);
void isp_mbox_release(ispsoftc_t *);
int isp_mstohz(int);
/*
* Platform specific inline functions
*/
/*
* ISP General Library functions
*/
#include <dev/isp/isp_library.h>
#endif /* _ISP_FREEBSD_H */
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