1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun #include <linux/bitops.h>
3*4882a593Smuzhiyun #include <linux/seq_file.h>
4*4882a593Smuzhiyun #include <scsi/scsi_cmnd.h>
5*4882a593Smuzhiyun #include <scsi/scsi_dbg.h>
6*4882a593Smuzhiyun #include "scsi_debugfs.h"
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #define SCSI_CMD_FLAG_NAME(name)[const_ilog2(SCMD_##name)] = #name
9*4882a593Smuzhiyun static const char *const scsi_cmd_flags[] = {
10*4882a593Smuzhiyun SCSI_CMD_FLAG_NAME(TAGGED),
11*4882a593Smuzhiyun SCSI_CMD_FLAG_NAME(UNCHECKED_ISA_DMA),
12*4882a593Smuzhiyun SCSI_CMD_FLAG_NAME(INITIALIZED),
13*4882a593Smuzhiyun SCSI_CMD_FLAG_NAME(LAST),
14*4882a593Smuzhiyun };
15*4882a593Smuzhiyun #undef SCSI_CMD_FLAG_NAME
16*4882a593Smuzhiyun
scsi_flags_show(struct seq_file * m,const unsigned long flags,const char * const * flag_name,int flag_name_count)17*4882a593Smuzhiyun static int scsi_flags_show(struct seq_file *m, const unsigned long flags,
18*4882a593Smuzhiyun const char *const *flag_name, int flag_name_count)
19*4882a593Smuzhiyun {
20*4882a593Smuzhiyun bool sep = false;
21*4882a593Smuzhiyun int i;
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun for_each_set_bit(i, &flags, BITS_PER_LONG) {
24*4882a593Smuzhiyun if (sep)
25*4882a593Smuzhiyun seq_puts(m, "|");
26*4882a593Smuzhiyun sep = true;
27*4882a593Smuzhiyun if (i < flag_name_count && flag_name[i])
28*4882a593Smuzhiyun seq_puts(m, flag_name[i]);
29*4882a593Smuzhiyun else
30*4882a593Smuzhiyun seq_printf(m, "%d", i);
31*4882a593Smuzhiyun }
32*4882a593Smuzhiyun return 0;
33*4882a593Smuzhiyun }
34*4882a593Smuzhiyun
scsi_show_rq(struct seq_file * m,struct request * rq)35*4882a593Smuzhiyun void scsi_show_rq(struct seq_file *m, struct request *rq)
36*4882a593Smuzhiyun {
37*4882a593Smuzhiyun struct scsi_cmnd *cmd = container_of(scsi_req(rq), typeof(*cmd), req);
38*4882a593Smuzhiyun int alloc_ms = jiffies_to_msecs(jiffies - cmd->jiffies_at_alloc);
39*4882a593Smuzhiyun int timeout_ms = jiffies_to_msecs(rq->timeout);
40*4882a593Smuzhiyun const u8 *const cdb = READ_ONCE(cmd->cmnd);
41*4882a593Smuzhiyun char buf[80] = "(?)";
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun if (cdb)
44*4882a593Smuzhiyun __scsi_format_command(buf, sizeof(buf), cdb, cmd->cmd_len);
45*4882a593Smuzhiyun seq_printf(m, ", .cmd=%s, .retries=%d, .result = %#x, .flags=", buf,
46*4882a593Smuzhiyun cmd->retries, cmd->result);
47*4882a593Smuzhiyun scsi_flags_show(m, cmd->flags, scsi_cmd_flags,
48*4882a593Smuzhiyun ARRAY_SIZE(scsi_cmd_flags));
49*4882a593Smuzhiyun seq_printf(m, ", .timeout=%d.%03d, allocated %d.%03d s ago",
50*4882a593Smuzhiyun timeout_ms / 1000, timeout_ms % 1000,
51*4882a593Smuzhiyun alloc_ms / 1000, alloc_ms % 1000);
52*4882a593Smuzhiyun }
53