659c1c1b29
Use the just introduced const_ilog2() macro to avoid sparse errors. Signed-off-by: Martin Wilck <mwilck@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
#include <linux/seq_file.h>
|
|
#include <scsi/scsi_cmnd.h>
|
|
#include <scsi/scsi_dbg.h>
|
|
#include "scsi_debugfs.h"
|
|
|
|
#define SCSI_CMD_FLAG_NAME(name)[const_ilog2(SCMD_##name)] = #name
|
|
static const char *const scsi_cmd_flags[] = {
|
|
SCSI_CMD_FLAG_NAME(TAGGED),
|
|
SCSI_CMD_FLAG_NAME(UNCHECKED_ISA_DMA),
|
|
SCSI_CMD_FLAG_NAME(INITIALIZED),
|
|
};
|
|
#undef SCSI_CMD_FLAG_NAME
|
|
|
|
static int scsi_flags_show(struct seq_file *m, const unsigned long flags,
|
|
const char *const *flag_name, int flag_name_count)
|
|
{
|
|
bool sep = false;
|
|
int i;
|
|
|
|
for (i = 0; i < sizeof(flags) * BITS_PER_BYTE; i++) {
|
|
if (!(flags & BIT(i)))
|
|
continue;
|
|
if (sep)
|
|
seq_puts(m, "|");
|
|
sep = true;
|
|
if (i < flag_name_count && flag_name[i])
|
|
seq_puts(m, flag_name[i]);
|
|
else
|
|
seq_printf(m, "%d", i);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void scsi_show_rq(struct seq_file *m, struct request *rq)
|
|
{
|
|
struct scsi_cmnd *cmd = container_of(scsi_req(rq), typeof(*cmd), req);
|
|
int alloc_ms = jiffies_to_msecs(jiffies - cmd->jiffies_at_alloc);
|
|
int timeout_ms = jiffies_to_msecs(rq->timeout);
|
|
const u8 *const cdb = READ_ONCE(cmd->cmnd);
|
|
char buf[80] = "(?)";
|
|
|
|
if (cdb)
|
|
__scsi_format_command(buf, sizeof(buf), cdb, cmd->cmd_len);
|
|
seq_printf(m, ", .cmd=%s, .retries=%d, .result = %#x, .flags=", buf,
|
|
cmd->retries, cmd->result);
|
|
scsi_flags_show(m, cmd->flags, scsi_cmd_flags,
|
|
ARRAY_SIZE(scsi_cmd_flags));
|
|
seq_printf(m, ", .timeout=%d.%03d, allocated %d.%03d s ago",
|
|
timeout_ms / 1000, timeout_ms % 1000,
|
|
alloc_ms / 1000, alloc_ms % 1000);
|
|
}
|