github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-28 09:04:39 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

scsi: scsi_debug: Move some tape-specific commands to separate definitions

Browse Source 
New definitions (struct opcode_info_t) are created for READ(6),
WRITE(6), READ POSITION(10) for tape devices.

Signed-off-by: Kai Mäkisara <Kai.Makisara@kolumbus.fi>
Link: https://lore.kernel.org/r/20250310155557.2872-4-Kai.Makisara@kolumbus.fi
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Kai Mäkisara 2025-03-10 17:55:55 +02:00 committed by Martin K. Petersen
parent eaa326f5a8
commit 5b0cb8c984
1 changed files with 38 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

77
drivers/scsi/scsi_debug.c
View File

@ -594,7 +594,9 @@ static int resp_mode_select(struct scsi_cmnd *, struct sdebug_dev_info *);
static int resp_log_sense(struct scsi_cmnd *, struct sdebug_dev_info *);
static int resp_readcap(struct scsi_cmnd *, struct sdebug_dev_info *);
static int resp_read_dt0(struct scsi_cmnd *, struct sdebug_dev_info *);
static int resp_read_tape(struct scsi_cmnd *, struct sdebug_dev_info *);
static int resp_write_dt0(struct scsi_cmnd *, struct sdebug_dev_info *);
static int resp_write_tape(struct scsi_cmnd *, struct sdebug_dev_info *);
static int resp_write_scat(struct scsi_cmnd *, struct sdebug_dev_info *);
static int resp_start_stop(struct scsi_cmnd *, struct sdebug_dev_info *);
static int resp_readcap16(struct scsi_cmnd *, struct sdebug_dev_info *);
@ -622,6 +624,7 @@ static int resp_read_blklimits(struct scsi_cmnd *, struct sdebug_dev_info *);
static int resp_locate(struct scsi_cmnd *, struct sdebug_dev_info *);
static int resp_write_filemarks(struct scsi_cmnd *, struct sdebug_dev_info *);
static int resp_space(struct scsi_cmnd *, struct sdebug_dev_info *);
static int resp_read_position(struct scsi_cmnd *, struct sdebug_dev_info *);
static int resp_rewind(struct scsi_cmnd *, struct sdebug_dev_info *);
static int resp_format_medium(struct scsi_cmnd *, struct sdebug_dev_info *);
@ -651,8 +654,10 @@ static const struct opcode_info_t read_iarr[] = {
{0, 0x28, 0, DS_NO_SSC, F_D_IN | FF_MEDIA_IO, resp_read_dt0, NULL,/* READ(10) */
{10, 0xff, 0xff, 0xff, 0xff, 0xff, 0x3f, 0xff, 0xff, 0xc7, 0, 0,
0, 0, 0, 0} },
{0, 0x8, 0, DS_ALL, F_D_IN | FF_MEDIA_IO, resp_read_dt0, NULL, /* READ(6) */
{0, 0x8, 0, DS_NO_SSC, F_D_IN | FF_MEDIA_IO, resp_read_dt0, NULL, /* READ(6) disk */
{6, 0xff, 0xff, 0xff, 0xff, 0xc7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
{0, 0x8, 0, DS_SSC, F_D_IN | FF_MEDIA_IO, resp_read_tape, NULL, /* READ(6) tape */
{6, 0x03, 0xff, 0xff, 0xff, 0xc7, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} },
{0, 0xa8, 0, DS_NO_SSC, F_D_IN | FF_MEDIA_IO, resp_read_dt0, NULL,/* READ(12) */
{12, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xbf,
0xc7, 0, 0, 0, 0} },
@ -662,9 +667,12 @@ static const struct opcode_info_t write_iarr[] = {
{0, 0x2a, 0, DS_NO_SSC, F_D_OUT | FF_MEDIA_IO, resp_write_dt0, /* WRITE(10) */
NULL, {10, 0xfb, 0xff, 0xff, 0xff, 0xff, 0x3f, 0xff, 0xff, 0xc7,
0, 0, 0, 0, 0, 0} },
{0, 0xa, 0, DS_ALL, F_D_OUT | FF_MEDIA_IO, resp_write_dt0, /* WRITE(6) */
{0, 0xa, 0, DS_NO_SSC, F_D_OUT | FF_MEDIA_IO, resp_write_dt0, /* WRITE(6) disk */
NULL, {6, 0xff, 0xff, 0xff, 0xff, 0xc7, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0} },
{0, 0xa, 0, DS_SSC, F_D_OUT | FF_MEDIA_IO, resp_write_tape, /* WRITE(6) tape */
NULL, {6, 0x01, 0xff, 0xff, 0xff, 0xc7, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0} },
{0, 0xaa, 0, DS_NO_SSC, F_D_OUT | FF_MEDIA_IO, resp_write_dt0, /* WRITE(12) */
NULL, {12, 0xfb, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xbf, 0xc7, 0, 0, 0, 0} },
@ -729,6 +737,9 @@ static const struct opcode_info_t pre_fetch_iarr[] = {
{0, 0x90, 0, DS_NO_SSC, F_SYNC_DELAY | FF_MEDIA_IO, resp_pre_fetch, NULL,
{16, 0x2, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff, 0xff, 0xff, 0xff, 0x3f, 0xc7} }, /* PRE-FETCH (16) */
{0, 0x34, 0, DS_SSC, F_SYNC_DELAY | FF_MEDIA_IO, resp_read_position, NULL,
{10, 0x1f, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xc7, 0, 0,
0, 0, 0, 0} }, /* READ POSITION (10) */
};
static const struct opcode_info_t zone_out_iarr[] = { /* ZONE OUT(16) */
@ -845,7 +856,7 @@ static const struct opcode_info_t opcode_info_arr[SDEB_I_LAST_ELEM_P1 + 1] = {
{0, 0x89, 0, DS_NO_SSC, F_D_OUT | FF_MEDIA_IO, resp_comp_write, NULL,
{16, 0xf8, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0, 0,
0, 0xff, 0x3f, 0xc7} }, /* COMPARE AND WRITE */
{ARRAY_SIZE(pre_fetch_iarr), 0x34, 0, DS_ALL, F_SYNC_DELAY | FF_MEDIA_IO,
{ARRAY_SIZE(pre_fetch_iarr), 0x34, 0, DS_NO_SSC, F_SYNC_DELAY | FF_MEDIA_IO,
resp_pre_fetch, pre_fetch_iarr,
{10, 0x2, 0xff, 0xff, 0xff, 0xff, 0x3f, 0xff, 0xff, 0xc7, 0, 0,
0, 0, 0, 0} }, /* PRE-FETCH (10) */
@ -3586,6 +3597,30 @@ static int resp_space(struct scsi_cmnd *scp,
return check_condition_result;
}
enum {SDEBUG_READ_POSITION_ARR_SZ = 20};
static int resp_read_position(struct scsi_cmnd *scp,
struct sdebug_dev_info *devip)
{
u8 *cmd = scp->cmnd;
int all_length;
unsigned char arr[20];
unsigned int pos;
all_length = get_unaligned_be16(cmd + 7);
if ((cmd[1] & 0xfe) != 0 ||
all_length != 0) { /* only short form */
mk_sense_invalid_fld(scp, SDEB_IN_CDB,
all_length ? 7 : 1, 0);
return check_condition_result;
}
memset(arr, 0, SDEBUG_READ_POSITION_ARR_SZ);
arr[1] = devip->tape_partition;
pos = devip->tape_location[devip->tape_partition];
put_unaligned_be32(pos, arr + 4);
put_unaligned_be32(pos, arr + 8);
return fill_from_dev_buffer(scp, arr, SDEBUG_READ_POSITION_ARR_SZ);
}
static int resp_rewind(struct scsi_cmnd *scp,
struct sdebug_dev_info *devip)
{
@ -3627,10 +3662,6 @@ static int resp_format_medium(struct scsi_cmnd *scp,
int res = 0;
unsigned char *cmd = scp->cmnd;
if (sdebug_ptype != TYPE_TAPE) {
mk_sense_invalid_fld(scp, SDEB_IN_CDB, 0, -1);
return check_condition_result;
}
if (cmd[2] > 2) {
mk_sense_invalid_fld(scp, SDEB_IN_DATA, 2, -1);
return check_condition_result;
@ -4490,9 +4521,6 @@ static int resp_read_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
u8 *cmd = scp->cmnd;
bool meta_data_locked = false;
if (sdebug_ptype == TYPE_TAPE)
return resp_read_tape(scp, devip);
switch (cmd[0]) {
case READ_16:
ei_lba = 0;
@ -4862,9 +4890,6 @@ static int resp_write_dt0(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
u8 *cmd = scp->cmnd;
bool meta_data_locked = false;
if (sdebug_ptype == TYPE_TAPE)
return resp_write_tape(scp, devip);
switch (cmd[0]) {
case WRITE_16:
ei_lba = 0;
@ -5596,7 +5621,6 @@ static int resp_sync_cache(struct scsi_cmnd *scp,
*
* The pcode 0x34 is also used for READ POSITION by tape devices.
*/
enum {SDEBUG_READ_POSITION_ARR_SZ = 20};
static int resp_pre_fetch(struct scsi_cmnd *scp,
struct sdebug_dev_info *devip)
{
@ -5608,31 +5632,6 @@ static int resp_pre_fetch(struct scsi_cmnd *scp,
struct sdeb_store_info *sip = devip2sip(devip, true);
u8 *fsp = sip->storep;
if (sdebug_ptype == TYPE_TAPE) {
if (cmd[0] == PRE_FETCH) { /* READ POSITION (10) */
int all_length;
unsigned char arr[20];
unsigned int pos;
all_length = get_unaligned_be16(cmd + 7);
if ((cmd[1] & 0xfe) != 0 ||
all_length != 0) { /* only short form */
mk_sense_invalid_fld(scp, SDEB_IN_CDB,
all_length ? 7 : 1, 0);
return check_condition_result;
}
memset(arr, 0, SDEBUG_READ_POSITION_ARR_SZ);
arr[1] = devip->tape_partition;
pos = devip->tape_location[devip->tape_partition];
put_unaligned_be32(pos, arr + 4);
put_unaligned_be32(pos, arr + 8);
return fill_from_dev_buffer(scp, arr,
SDEBUG_READ_POSITION_ARR_SZ);
}
mk_sense_invalid_opcode(scp);
return check_condition_result;
}
if (cmd[0] == PRE_FETCH) { /* 10 byte cdb */
lba = get_unaligned_be32(cmd + 2);
nblks = get_unaligned_be16(cmd + 7);