diff options
Diffstat (limited to 'drivers/scsi/bfa/include/cs/bfa_trc.h')
| -rw-r--r-- | drivers/scsi/bfa/include/cs/bfa_trc.h | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/drivers/scsi/bfa/include/cs/bfa_trc.h b/drivers/scsi/bfa/include/cs/bfa_trc.h new file mode 100644 index 00000000000..3e743928c74 --- /dev/null +++ b/drivers/scsi/bfa/include/cs/bfa_trc.h @@ -0,0 +1,176 @@ +/* + * 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__ */ + |