Commit | Line | Data |
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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
16238355 | 2 | #include <linux/bitops.h> |
0eebd005 BVA |
3 | #include <linux/seq_file.h> |
4 | #include <scsi/scsi_cmnd.h> | |
5 | #include <scsi/scsi_dbg.h> | |
6 | #include "scsi_debugfs.h" | |
7 | ||
659c1c1b | 8 | #define SCSI_CMD_FLAG_NAME(name)[const_ilog2(SCMD_##name)] = #name |
2ee4e9ce BVA |
9 | static const char *const scsi_cmd_flags[] = { |
10 | SCSI_CMD_FLAG_NAME(TAGGED), | |
11 | SCSI_CMD_FLAG_NAME(UNCHECKED_ISA_DMA), | |
2ee4e9ce BVA |
12 | SCSI_CMD_FLAG_NAME(INITIALIZED), |
13 | }; | |
14 | #undef SCSI_CMD_FLAG_NAME | |
15 | ||
16 | static int scsi_flags_show(struct seq_file *m, const unsigned long flags, | |
17 | const char *const *flag_name, int flag_name_count) | |
18 | { | |
19 | bool sep = false; | |
20 | int i; | |
21 | ||
16238355 | 22 | for_each_set_bit(i, &flags, BITS_PER_LONG) { |
2ee4e9ce BVA |
23 | if (sep) |
24 | seq_puts(m, "|"); | |
25 | sep = true; | |
26 | if (i < flag_name_count && flag_name[i]) | |
27 | seq_puts(m, flag_name[i]); | |
28 | else | |
29 | seq_printf(m, "%d", i); | |
30 | } | |
31 | return 0; | |
32 | } | |
33 | ||
0eebd005 BVA |
34 | void scsi_show_rq(struct seq_file *m, struct request *rq) |
35 | { | |
36 | struct scsi_cmnd *cmd = container_of(scsi_req(rq), typeof(*cmd), req); | |
2ee4e9ce BVA |
37 | int alloc_ms = jiffies_to_msecs(jiffies - cmd->jiffies_at_alloc); |
38 | int timeout_ms = jiffies_to_msecs(rq->timeout); | |
14e3062f BVA |
39 | const u8 *const cdb = READ_ONCE(cmd->cmnd); |
40 | char buf[80] = "(?)"; | |
0eebd005 | 41 | |
14e3062f BVA |
42 | if (cdb) |
43 | __scsi_format_command(buf, sizeof(buf), cdb, cmd->cmd_len); | |
2ee4e9ce BVA |
44 | seq_printf(m, ", .cmd=%s, .retries=%d, .result = %#x, .flags=", buf, |
45 | cmd->retries, cmd->result); | |
46 | scsi_flags_show(m, cmd->flags, scsi_cmd_flags, | |
47 | ARRAY_SIZE(scsi_cmd_flags)); | |
48 | seq_printf(m, ", .timeout=%d.%03d, allocated %d.%03d s ago", | |
49 | timeout_ms / 1000, timeout_ms % 1000, | |
50 | alloc_ms / 1000, alloc_ms % 1000); | |
0eebd005 | 51 | } |