/*
* Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
* All rights reserved
* www.brocade.com
*
* Linux driver for Brocade Fibre Channel Host Bus Adapter.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License (GPL) Version 2 as
* published by the Free Software Foundation
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
#ifndef __BFA_TRC_H__
#define __BFA_TRC_H__
#include <bfa_os_inc.h>
#ifndef BFA_TRC_MAX
#define BFA_TRC_MAX (4 * 1024)
#endif
#ifndef BFA_TRC_TS
#define BFA_TRC_TS(_trcm) ((_trcm)->ticks++)
#endif
struct bfa_trc_s {
#ifdef __BIGENDIAN
u16 fileno;
u16 line;
#else
u16 line;
u16 fileno;
#endif
u32 timestamp;
union {
struct {
u32 rsvd;
u32 u32;
} u32;
u64 u64;
} data;
};
struct bfa_trc_mod_s {
u32 head;
u32 tail;
u32 ntrc;
u32 stopped;
u32 ticks;
u32 rsvd[3];
struct bfa_trc_s trc[BFA_TRC_MAX];
};
enum {
BFA_TRC_FW = 1, /* firmware modules */
BFA_TRC_HAL = 2, /* BFA modules */
BFA_TRC_FCS = 3, /* BFA FCS modules */
BFA_TRC_LDRV = 4, /* Linux driver modules */
BFA_TRC_SDRV = 5, /* Solaris driver modules */
BFA_TRC_VDRV = 6, /* vmware driver modules */
BFA_TRC_WDRV = 7, /* windows driver modules */
BFA_TRC_AEN = 8, /* AEN module */
BFA_TRC_BIOS = 9, /* bios driver modules */
BFA_TRC_EFI = 10, /* EFI driver modules */
BNA_TRC_WDRV = 11, /* BNA windows driver modules */
BNA_TRC_VDRV = 12, /* BNA vmware driver modules */
BNA_TRC_SDRV = 13, /* BNA Solaris driver modules */
BNA_TRC_LDRV = 14, /* BNA Linux driver modules */
BNA_TRC_HAL = 15, /* BNA modules */
BFA_TRC_CNA = 16, /* Common modules */
BNA_TRC_IMDRV = 17 /* BNA windows intermediate driver modules */
};
#define BFA_TRC_MOD_SH 10
#define BFA_TRC_MOD(__mod) ((BFA_TRC_ ## __mod) << BFA_TRC_MOD_SH)
/**
* Define a new tracing file (module). Module should match one defined above.
*/
#define BFA_TRC_FILE(__mod, __submod) \
static int __trc_fileno = ((BFA_TRC_ ## __mod ## _ ## __submod) | \
BFA_TRC_MOD(__mod))
#define bfa_trc32(_trcp, _data) \
__bfa_trc((_trcp)->trcmod, __trc_fileno, __LINE__, (u32)_data)
#ifndef BFA_BOOT_BUILD
#define bfa_trc(_trcp, _data) \
__bfa_trc((_trcp)->trcmod, __trc_fileno, __LINE__, (u64)_data)
#else
void bfa_boot_trc(struct bfa_trc_mod_s *trcmod, u16 fileno,
u16 line, u32 data);
#define bfa_trc(_trcp, _data) \
bfa_boot_trc((_trcp)->trcmod, __trc_fileno, __LINE__, (u32)_data)
#endif
static inline void
bfa_trc_init(struct bfa_trc_mod_s *trcm)
{
trcm->head = trcm->tail = trcm->stopped = 0;
trcm->ntrc = BFA_TRC_MAX;
}
static inline void
bfa_trc_stop(struct bfa_trc_mod_s *trcm)
{
trcm->stopped = 1;
}
#ifdef FWTRC
extern void dc_flush(void *data);
#else
#define dc_flush(data)
#endif
static inline void
__bfa_trc(struct bfa_trc_mod_s *trcm, int fileno, int line, u64 data)
{
int tail = trcm->tail;
struct bfa_trc_s *trc = &trcm->trc[tail];
if (trcm->stopped)
return;
trc->fileno = (u16) fileno;
trc->line = (u16) line;
trc->data.u64 = data;
trc->timestamp = BFA_TRC_TS(trcm);
dc_flush(trc);
trcm->tail = (trcm->tail + 1) & (BFA_TRC_MAX - 1);
if (trcm->tail == trcm->head)
trcm->head = (trcm->head + 1) & (BFA_TRC_MAX - 1);
dc_flush(trcm);
}
static inline void
__bfa_trc32(struct bfa_trc_mod_s *trcm, int fileno, int line, u32 data)
{
int tail = trcm->tail;
struct bfa_trc_s *trc = &trcm->trc[tail];
if (trcm->stopped)
return;
trc->fileno = (u16) fileno;
trc->line = (u16) line;
trc->data.u32.u32 = data;
trc->timestamp = BFA_TRC_TS(trcm);
dc_flush(trc);
trcm->tail = (trcm->tail + 1) & (BFA_TRC_MAX - 1);
if (trcm->tail == trcm->head)
trcm->head = (trcm->head + 1) & (BFA_TRC_MAX - 1);
dc_flush(trcm);
}
#ifndef BFA_PERF_BUILD
#define bfa_trc_fp(_trcp, _data) bfa_trc(_trcp, _data)
#else
#define bfa_trc_fp(_trcp, _data)
#endif
#endif /* __BFA_TRC_H__ */
