Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Narsimhulu Musini | 357 | 99.72% | 1 | 50.00% |
Viresh Kumar | 1 | 0.28% | 1 | 50.00% |
Total | 358 | 2 |
/* * 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 */
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