18c2ecf20Sopenharmony_ci// SPDX-License-Identifier: GPL-2.0 28c2ecf20Sopenharmony_ci#include <linux/bitops.h> 38c2ecf20Sopenharmony_ci#include <linux/seq_file.h> 48c2ecf20Sopenharmony_ci#include <scsi/scsi_cmnd.h> 58c2ecf20Sopenharmony_ci#include <scsi/scsi_dbg.h> 68c2ecf20Sopenharmony_ci#include "scsi_debugfs.h" 78c2ecf20Sopenharmony_ci 88c2ecf20Sopenharmony_ci#define SCSI_CMD_FLAG_NAME(name)[const_ilog2(SCMD_##name)] = #name 98c2ecf20Sopenharmony_cistatic const char *const scsi_cmd_flags[] = { 108c2ecf20Sopenharmony_ci SCSI_CMD_FLAG_NAME(TAGGED), 118c2ecf20Sopenharmony_ci SCSI_CMD_FLAG_NAME(UNCHECKED_ISA_DMA), 128c2ecf20Sopenharmony_ci SCSI_CMD_FLAG_NAME(INITIALIZED), 138c2ecf20Sopenharmony_ci SCSI_CMD_FLAG_NAME(LAST), 148c2ecf20Sopenharmony_ci}; 158c2ecf20Sopenharmony_ci#undef SCSI_CMD_FLAG_NAME 168c2ecf20Sopenharmony_ci 178c2ecf20Sopenharmony_cistatic int scsi_flags_show(struct seq_file *m, const unsigned long flags, 188c2ecf20Sopenharmony_ci const char *const *flag_name, int flag_name_count) 198c2ecf20Sopenharmony_ci{ 208c2ecf20Sopenharmony_ci bool sep = false; 218c2ecf20Sopenharmony_ci int i; 228c2ecf20Sopenharmony_ci 238c2ecf20Sopenharmony_ci for_each_set_bit(i, &flags, BITS_PER_LONG) { 248c2ecf20Sopenharmony_ci if (sep) 258c2ecf20Sopenharmony_ci seq_puts(m, "|"); 268c2ecf20Sopenharmony_ci sep = true; 278c2ecf20Sopenharmony_ci if (i < flag_name_count && flag_name[i]) 288c2ecf20Sopenharmony_ci seq_puts(m, flag_name[i]); 298c2ecf20Sopenharmony_ci else 308c2ecf20Sopenharmony_ci seq_printf(m, "%d", i); 318c2ecf20Sopenharmony_ci } 328c2ecf20Sopenharmony_ci return 0; 338c2ecf20Sopenharmony_ci} 348c2ecf20Sopenharmony_ci 358c2ecf20Sopenharmony_civoid scsi_show_rq(struct seq_file *m, struct request *rq) 368c2ecf20Sopenharmony_ci{ 378c2ecf20Sopenharmony_ci struct scsi_cmnd *cmd = container_of(scsi_req(rq), typeof(*cmd), req); 388c2ecf20Sopenharmony_ci int alloc_ms = jiffies_to_msecs(jiffies - cmd->jiffies_at_alloc); 398c2ecf20Sopenharmony_ci int timeout_ms = jiffies_to_msecs(rq->timeout); 408c2ecf20Sopenharmony_ci const u8 *const cdb = READ_ONCE(cmd->cmnd); 418c2ecf20Sopenharmony_ci char buf[80] = "(?)"; 428c2ecf20Sopenharmony_ci 438c2ecf20Sopenharmony_ci if (cdb) 448c2ecf20Sopenharmony_ci __scsi_format_command(buf, sizeof(buf), cdb, cmd->cmd_len); 458c2ecf20Sopenharmony_ci seq_printf(m, ", .cmd=%s, .retries=%d, .result = %#x, .flags=", buf, 468c2ecf20Sopenharmony_ci cmd->retries, cmd->result); 478c2ecf20Sopenharmony_ci scsi_flags_show(m, cmd->flags, scsi_cmd_flags, 488c2ecf20Sopenharmony_ci ARRAY_SIZE(scsi_cmd_flags)); 498c2ecf20Sopenharmony_ci seq_printf(m, ", .timeout=%d.%03d, allocated %d.%03d s ago", 508c2ecf20Sopenharmony_ci timeout_ms / 1000, timeout_ms % 1000, 518c2ecf20Sopenharmony_ci alloc_ms / 1000, alloc_ms % 1000); 528c2ecf20Sopenharmony_ci} 53