^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) * Copyright 2014 Cisco Systems, Inc. All rights reserved.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * This program is free software; you may redistribute it and/or modify
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * it under the terms of the GNU General Public License as published by
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * the Free Software Foundation; version 2 of the License.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * SOFTWARE.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #ifndef __SNIC_TRC_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #define __SNIC_TRC_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #ifdef CONFIG_SCSI_SNIC_DEBUG_FS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) extern ssize_t simple_read_from_buffer(void __user *to,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) size_t count,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) loff_t *ppos,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) const void *from,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) size_t available);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) extern unsigned int snic_trace_max_pages;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) /* Global Data structure for trace to manage trace functionality */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) struct snic_trc_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) u64 ts; /* Time Stamp */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) char *fn; /* Ptr to Function Name */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) u32 hno; /* SCSI Host ID */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) u32 tag; /* Command Tag */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) u64 data[5];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) } __attribute__((__packed__));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define SNIC_TRC_ENTRY_SZ 64 /* in Bytes */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) struct snic_trc {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) spinlock_t lock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) struct snic_trc_data *buf; /* Trace Buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) u32 max_idx; /* Max Index into trace buffer */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) u32 rd_idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) u32 wr_idx;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) bool enable; /* Control Variable for Tracing */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) struct dentry *trc_enable; /* debugfs file object */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) struct dentry *trc_file;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) int snic_trc_init(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) void snic_trc_free(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) void snic_trc_debugfs_init(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) void snic_trc_debugfs_term(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) struct snic_trc_data *snic_get_trc_buf(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) int snic_get_trc_data(char *buf, int buf_sz);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) void snic_debugfs_init(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) void snic_debugfs_term(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) snic_trace(char *fn, u16 hno, u32 tag, u64 d1, u64 d2, u64 d3, u64 d4, u64 d5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) struct snic_trc_data *tr_rec = snic_get_trc_buf();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) if (!tr_rec)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) tr_rec->fn = (char *)fn;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) tr_rec->hno = hno;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) tr_rec->tag = tag;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) tr_rec->data[0] = d1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) tr_rec->data[1] = d2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) tr_rec->data[2] = d3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) tr_rec->data[3] = d4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) tr_rec->data[4] = d5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) tr_rec->ts = jiffies; /* Update time stamp at last */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) #define SNIC_TRC(_hno, _tag, d1, d2, d3, d4, d5) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) if (unlikely(snic_glob->trc.enable)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) snic_trace((char *)__func__, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) (u16)(_hno), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) (u32)(_tag), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) (u64)(d1), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) (u64)(d2), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) (u64)(d3), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) (u64)(d4), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) (u64)(d5)); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) #define SNIC_TRC(_hno, _tag, d1, d2, d3, d4, d5) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) if (unlikely(snic_log_level & 0x2)) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) SNIC_DBG("SnicTrace: %s %2u %2u %llx %llx %llx %llx %llx", \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) (char *)__func__, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) (u16)(_hno), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) (u32)(_tag), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) (u64)(d1), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) (u64)(d2), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) (u64)(d3), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) (u64)(d4), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) (u64)(d5)); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) #endif /* end of CONFIG_SCSI_SNIC_DEBUG_FS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) #define SNIC_TRC_CMD(sc) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) ((u64)sc->cmnd[0] << 56 | (u64)sc->cmnd[7] << 40 | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) (u64)sc->cmnd[8] << 32 | (u64)sc->cmnd[2] << 24 | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) (u64)sc->cmnd[3] << 16 | (u64)sc->cmnd[4] << 8 | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) (u64)sc->cmnd[5])
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) #define SNIC_TRC_CMD_STATE_FLAGS(sc) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) ((u64) CMD_FLAGS(sc) << 32 | CMD_STATE(sc))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) #endif /* end of __SNIC_TRC_H */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags