cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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scsi_debugfs.c (1426B)

      1// SPDX-License-Identifier: GPL-2.0
      2#include <linux/bitops.h>
      3#include <linux/seq_file.h>
      4#include <scsi/scsi_cmnd.h>
      5#include <scsi/scsi_dbg.h>
      6#include "scsi_debugfs.h"
      7
      8#define SCSI_CMD_FLAG_NAME(name)[const_ilog2(SCMD_##name)] = #name
      9static const char *const scsi_cmd_flags[] = {
     10	SCSI_CMD_FLAG_NAME(TAGGED),
     11	SCSI_CMD_FLAG_NAME(INITIALIZED),
     12	SCSI_CMD_FLAG_NAME(LAST),
     13};
     14#undef SCSI_CMD_FLAG_NAME
     15
     16static 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
     22	for_each_set_bit(i, &flags, BITS_PER_LONG) {
     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
     34void scsi_show_rq(struct seq_file *m, struct request *rq)
     35{
     36	struct scsi_cmnd *cmd = blk_mq_rq_to_pdu(rq);
     37	int alloc_ms = jiffies_to_msecs(jiffies - cmd->jiffies_at_alloc);
     38	int timeout_ms = jiffies_to_msecs(rq->timeout);
     39	char buf[80] = "(?)";
     40
     41	__scsi_format_command(buf, sizeof(buf), cmd->cmnd, cmd->cmd_len);
     42	seq_printf(m, ", .cmd=%s, .retries=%d, .result = %#x, .flags=", buf,
     43		   cmd->retries, cmd->result);
     44	scsi_flags_show(m, cmd->flags, scsi_cmd_flags,
     45			ARRAY_SIZE(scsi_cmd_flags));
     46	seq_printf(m, ", .timeout=%d.%03d, allocated %d.%03d s ago",
     47		   timeout_ms / 1000, timeout_ms % 1000,
     48		   alloc_ms / 1000, alloc_ms % 1000);
     49}