mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
118 lines
3.2 KiB
118 lines
3.2 KiB
/* |
|
* Copyright 2014 Cisco Systems, Inc. All rights reserved. |
|
* |
|
* This program is free software; you may redistribute it and/or modify |
|
* it under the terms of the GNU General Public License as published by |
|
* the Free Software Foundation; version 2 of the License. |
|
* |
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
|
* SOFTWARE. |
|
*/ |
|
|
|
#ifndef __SNIC_TRC_H |
|
#define __SNIC_TRC_H |
|
|
|
#ifdef CONFIG_SCSI_SNIC_DEBUG_FS |
|
|
|
extern ssize_t simple_read_from_buffer(void __user *to, |
|
size_t count, |
|
loff_t *ppos, |
|
const void *from, |
|
size_t available); |
|
|
|
extern unsigned int snic_trace_max_pages; |
|
|
|
/* Global Data structure for trace to manage trace functionality */ |
|
struct snic_trc_data { |
|
u64 ts; /* Time Stamp */ |
|
char *fn; /* Ptr to Function Name */ |
|
u32 hno; /* SCSI Host ID */ |
|
u32 tag; /* Command Tag */ |
|
u64 data[5]; |
|
} __attribute__((__packed__)); |
|
|
|
#define SNIC_TRC_ENTRY_SZ 64 /* in Bytes */ |
|
|
|
struct snic_trc { |
|
spinlock_t lock; |
|
struct snic_trc_data *buf; /* Trace Buffer */ |
|
u32 max_idx; /* Max Index into trace buffer */ |
|
u32 rd_idx; |
|
u32 wr_idx; |
|
bool enable; /* Control Variable for Tracing */ |
|
}; |
|
|
|
int snic_trc_init(void); |
|
void snic_trc_free(void); |
|
void snic_trc_debugfs_init(void); |
|
void snic_trc_debugfs_term(void); |
|
struct snic_trc_data *snic_get_trc_buf(void); |
|
int snic_get_trc_data(char *buf, int buf_sz); |
|
|
|
void snic_debugfs_init(void); |
|
void snic_debugfs_term(void); |
|
|
|
static inline void |
|
snic_trace(char *fn, u16 hno, u32 tag, u64 d1, u64 d2, u64 d3, u64 d4, u64 d5) |
|
{ |
|
struct snic_trc_data *tr_rec = snic_get_trc_buf(); |
|
|
|
if (!tr_rec) |
|
return; |
|
|
|
tr_rec->fn = (char *)fn; |
|
tr_rec->hno = hno; |
|
tr_rec->tag = tag; |
|
tr_rec->data[0] = d1; |
|
tr_rec->data[1] = d2; |
|
tr_rec->data[2] = d3; |
|
tr_rec->data[3] = d4; |
|
tr_rec->data[4] = d5; |
|
tr_rec->ts = jiffies; /* Update time stamp at last */ |
|
} |
|
|
|
#define SNIC_TRC(_hno, _tag, d1, d2, d3, d4, d5) \ |
|
do { \ |
|
if (unlikely(snic_glob->trc.enable)) \ |
|
snic_trace((char *)__func__, \ |
|
(u16)(_hno), \ |
|
(u32)(_tag), \ |
|
(u64)(d1), \ |
|
(u64)(d2), \ |
|
(u64)(d3), \ |
|
(u64)(d4), \ |
|
(u64)(d5)); \ |
|
} while (0) |
|
#else |
|
|
|
#define SNIC_TRC(_hno, _tag, d1, d2, d3, d4, d5) \ |
|
do { \ |
|
if (unlikely(snic_log_level & 0x2)) \ |
|
SNIC_DBG("SnicTrace: %s %2u %2u %llx %llx %llx %llx %llx", \ |
|
(char *)__func__, \ |
|
(u16)(_hno), \ |
|
(u32)(_tag), \ |
|
(u64)(d1), \ |
|
(u64)(d2), \ |
|
(u64)(d3), \ |
|
(u64)(d4), \ |
|
(u64)(d5)); \ |
|
} while (0) |
|
#endif /* end of CONFIG_SCSI_SNIC_DEBUG_FS */ |
|
|
|
#define SNIC_TRC_CMD(sc) \ |
|
((u64)sc->cmnd[0] << 56 | (u64)sc->cmnd[7] << 40 | \ |
|
(u64)sc->cmnd[8] << 32 | (u64)sc->cmnd[2] << 24 | \ |
|
(u64)sc->cmnd[3] << 16 | (u64)sc->cmnd[4] << 8 | \ |
|
(u64)sc->cmnd[5]) |
|
|
|
#define SNIC_TRC_CMD_STATE_FLAGS(sc) \ |
|
((u64) CMD_FLAGS(sc) << 32 | CMD_STATE(sc)) |
|
|
|
#endif /* end of __SNIC_TRC_H */
|
|
|