mirror of
https://github.com/torvalds/linux.git
synced 2024-11-11 06:31:49 +00:00
621a5f7ad9
Its a bit odd that debugfs_create_bool() takes 'u32 *' as an argument,
when all it needs is a boolean pointer.
It would be better to update this API to make it accept 'bool *'
instead, as that will make it more consistent and often more convenient.
Over that bool takes just a byte.
That required updates to all user sites as well, in the same commit
updating the API. regmap core was also using
debugfs_{read|write}_file_bool(), directly and variable types were
updated for that to be bool as well.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
122 lines
3.3 KiB
C
122 lines
3.3 KiB
C
/*
|
|
* 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 */
|
|
|
|
struct dentry *trc_enable; /* debugfs file object */
|
|
struct dentry *trc_file;
|
|
};
|
|
|
|
int snic_trc_init(void);
|
|
void snic_trc_free(void);
|
|
int 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);
|
|
|
|
int 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 */
|