diff options
Diffstat (limited to 'drivers/scsi/constants.c')
| -rw-r--r-- | drivers/scsi/constants.c | 131 |
1 files changed, 53 insertions, 78 deletions
diff --git a/drivers/scsi/constants.c b/drivers/scsi/constants.c index 885c559164d..6d2f316d025 100644 --- a/drivers/scsi/constants.c +++ b/drivers/scsi/constants.c @@ -244,102 +244,76 @@ static const struct value_name_pair variable_length_arr[] = { }; #define VARIABLE_LENGTH_SZ ARRAY_SIZE(variable_length_arr) -static const char * get_sa_name(const struct value_name_pair * arr, - int arr_sz, int service_action) +struct sa_name_list { + int opcode; + const struct value_name_pair *arr; + int arr_sz; +}; + +static struct sa_name_list sa_names_arr[] = { + {VARIABLE_LENGTH_CMD, variable_length_arr, VARIABLE_LENGTH_SZ}, + {MAINTENANCE_IN, maint_in_arr, MAINT_IN_SZ}, + {MAINTENANCE_OUT, maint_out_arr, MAINT_OUT_SZ}, + {PERSISTENT_RESERVE_IN, pr_in_arr, PR_IN_SZ}, + {PERSISTENT_RESERVE_OUT, pr_out_arr, PR_OUT_SZ}, + {SERVICE_ACTION_IN_12, serv_in12_arr, SERV_IN12_SZ}, + {SERVICE_ACTION_OUT_12, serv_out12_arr, SERV_OUT12_SZ}, + {SERVICE_ACTION_BIDIRECTIONAL, serv_bidi_arr, SERV_BIDI_SZ}, + {SERVICE_ACTION_IN_16, serv_in16_arr, SERV_IN16_SZ}, + {SERVICE_ACTION_OUT_16, serv_out16_arr, SERV_OUT16_SZ}, + {THIRD_PARTY_COPY_IN, tpc_in_arr, TPC_IN_SZ}, + {THIRD_PARTY_COPY_OUT, tpc_out_arr, TPC_OUT_SZ}, + {0, NULL, 0}, +}; + +static bool scsi_opcode_sa_name(int opcode, int service_action, + const char **sa_name) { - int k; + struct sa_name_list *sa_name_ptr; + const struct value_name_pair *arr = NULL; + int arr_sz, k; + + for (sa_name_ptr = sa_names_arr; sa_name_ptr->arr; ++sa_name_ptr) { + if (sa_name_ptr->opcode == opcode) { + arr = sa_name_ptr->arr; + arr_sz = sa_name_ptr->arr_sz; + break; + } + } + if (!arr) + return false; for (k = 0; k < arr_sz; ++k, ++arr) { if (service_action == arr->value) break; } - return (k < arr_sz) ? arr->name : NULL; + if (k < arr_sz) + *sa_name = arr->name; + + return true; } /* attempt to guess cdb length if cdb_len==0 . No trailing linefeed. */ static void print_opcode_name(unsigned char * cdbp, int cdb_len) { int sa, len, cdb0; - int fin_name = 0; - const char * name; + const char *name = NULL; cdb0 = cdbp[0]; - switch(cdb0) { - case VARIABLE_LENGTH_CMD: + if (cdb0 == VARIABLE_LENGTH_CMD) { len = scsi_varlen_cdb_length(cdbp); if (len < 10) { printk("short variable length command, " "len=%d ext_len=%d", len, cdb_len); - break; + return; } sa = (cdbp[8] << 8) + cdbp[9]; - name = get_sa_name(variable_length_arr, VARIABLE_LENGTH_SZ, - sa); - if (name) - printk("%s", name); - else - printk("cdb[0]=0x%x, sa=0x%x", cdb0, sa); - - if ((cdb_len > 0) && (len != cdb_len)) - printk(", in_cdb_len=%d, ext_len=%d", len, cdb_len); - - break; - case MAINTENANCE_IN: - sa = cdbp[1] & 0x1f; - name = get_sa_name(maint_in_arr, MAINT_IN_SZ, sa); - fin_name = 1; - break; - case MAINTENANCE_OUT: - sa = cdbp[1] & 0x1f; - name = get_sa_name(maint_out_arr, MAINT_OUT_SZ, sa); - fin_name = 1; - break; - case PERSISTENT_RESERVE_IN: - sa = cdbp[1] & 0x1f; - name = get_sa_name(pr_in_arr, PR_IN_SZ, sa); - fin_name = 1; - break; - case PERSISTENT_RESERVE_OUT: - sa = cdbp[1] & 0x1f; - name = get_sa_name(pr_out_arr, PR_OUT_SZ, sa); - fin_name = 1; - break; - case SERVICE_ACTION_IN_12: - sa = cdbp[1] & 0x1f; - name = get_sa_name(serv_in12_arr, SERV_IN12_SZ, sa); - fin_name = 1; - break; - case SERVICE_ACTION_OUT_12: - sa = cdbp[1] & 0x1f; - name = get_sa_name(serv_out12_arr, SERV_OUT12_SZ, sa); - fin_name = 1; - break; - case SERVICE_ACTION_BIDIRECTIONAL: - sa = cdbp[1] & 0x1f; - name = get_sa_name(serv_bidi_arr, SERV_BIDI_SZ, sa); - fin_name = 1; - break; - case SERVICE_ACTION_IN_16: - sa = cdbp[1] & 0x1f; - name = get_sa_name(serv_in16_arr, SERV_IN16_SZ, sa); - fin_name = 1; - break; - case SERVICE_ACTION_OUT_16: - sa = cdbp[1] & 0x1f; - name = get_sa_name(serv_out16_arr, SERV_OUT16_SZ, sa); - fin_name = 1; - break; - case THIRD_PARTY_COPY_IN: - sa = cdbp[1] & 0x1f; - name = get_sa_name(tpc_in_arr, TPC_IN_SZ, sa); - fin_name = 1; - break; - case THIRD_PARTY_COPY_OUT: + } else { sa = cdbp[1] & 0x1f; - name = get_sa_name(tpc_out_arr, TPC_OUT_SZ, sa); - fin_name = 1; - break; - default: + len = cdb_len; + } + + if (!scsi_opcode_sa_name(cdb0, sa, &name)) { if (cdb0 < 0xc0) { name = cdb_byte0_names[cdb0]; if (name) @@ -348,13 +322,14 @@ static void print_opcode_name(unsigned char * cdbp, int cdb_len) printk("cdb[0]=0x%x (reserved)", cdb0); } else printk("cdb[0]=0x%x (vendor)", cdb0); - break; - } - if (fin_name) { + } else { if (name) printk("%s", name); else printk("cdb[0]=0x%x, sa=0x%x", cdb0, sa); + + if (cdb_len > 0 && len != cdb_len) + printk(", in_cdb_len=%d, ext_len=%d", len, cdb_len); } } |