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scsi: target: Make transport_flags per device

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pgr_support and alua_support device attributes show the inverted value of
the transport_flags:

 * TRANSPORT_FLAG_PASSTHROUGH_PGR
 * TRANSPORT_FLAG_PASSTHROUGH_ALUA

These attributes are per device, while the flags are per backend. Rename
the transport_flags in backend/transport to transport_flags_default and use
this value to initialize the new transport_flags field in the se_device
structure.

Now data and attribute both are per se_device.

Link: https://lore.kernel.org/r/20200427150823.15350-4-bstroesser@ts.fujitsu.com
Reviewed-by: Mike Christie <mchristi@redhat.com>
Signed-off-by: Bodo Stroesser <bstroesser@ts.fujitsu.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Bodo Stroesser 2020-04-27 17:08:22 +02:00 committed by Martin K. Petersen
parent 4703b6252b
commit 69088a0494
10 changed files with 25 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/target/target_core_alua.c
View File

@ -677,7 +677,7 @@ target_alua_state_check(struct se_cmd *cmd)
if (dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)
return 0;
if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_ALUA)
if (dev->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_ALUA)
return 0;
/*
@ -1090,7 +1090,7 @@ int core_alua_do_port_transition(
struct t10_alua_tg_pt_gp *tg_pt_gp;
int primary, valid_states, rc = 0;
if (l_dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_ALUA)
if (l_dev->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_ALUA)
return -ENODEV;
valid_states = l_tg_pt_gp->tg_pt_gp_alua_supported_states;
@ -1920,7 +1920,7 @@ ssize_t core_alua_store_tg_pt_gp_info(
unsigned char buf[TG_PT_GROUP_NAME_BUF];
int move = 0;
if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_ALUA ||
if (dev->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_ALUA ||
(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE))
return -ENODEV;
@ -2177,7 +2177,7 @@ ssize_t core_alua_store_offline_bit(
unsigned long tmp;
int ret;
if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_ALUA ||
if (dev->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_ALUA ||
(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE))
return -ENODEV;
@ -2263,7 +2263,7 @@ ssize_t core_alua_store_secondary_write_metadata(
int core_setup_alua(struct se_device *dev)
{
if (!(dev->transport->transport_flags &
if (!(dev->transport_flags &
TRANSPORT_FLAG_PASSTHROUGH_ALUA) &&
!(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)) {
struct t10_alua_lu_gp_member *lu_gp_mem;

14
drivers/target/target_core_configfs.c
View File

@ -1099,7 +1099,7 @@ static ssize_t block_size_store(struct config_item *item,
static ssize_t alua_support_show(struct config_item *item, char *page)
{
struct se_dev_attrib *da = to_attrib(item);
u8 flags = da->da_dev->transport->transport_flags;
u8 flags = da->da_dev->transport_flags;
return snprintf(page, PAGE_SIZE, "%d\n",
flags & TRANSPORT_FLAG_PASSTHROUGH_ALUA ? 0 : 1);
@ -1108,7 +1108,7 @@ static ssize_t alua_support_show(struct config_item *item, char *page)
static ssize_t pgr_support_show(struct config_item *item, char *page)
{
struct se_dev_attrib *da = to_attrib(item);
u8 flags = da->da_dev->transport->transport_flags;
u8 flags = da->da_dev->transport_flags;
return snprintf(page, PAGE_SIZE, "%d\n",
flags & TRANSPORT_FLAG_PASSTHROUGH_PGR ? 0 : 1);
@ -1654,7 +1654,7 @@ static ssize_t target_pr_res_holder_show(struct config_item *item, char *page)
if (!dev->dev_attrib.emulate_pr)
return sprintf(page, "SPC_RESERVATIONS_DISABLED\n");
if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_PGR)
if (dev->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_PGR)
return sprintf(page, "Passthrough\n");
spin_lock(&dev->dev_reservation_lock);
@ -1796,7 +1796,7 @@ static ssize_t target_pr_res_type_show(struct config_item *item, char *page)
if (!dev->dev_attrib.emulate_pr)
return sprintf(page, "SPC_RESERVATIONS_DISABLED\n");
if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_PGR)
if (dev->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_PGR)
return sprintf(page, "SPC_PASSTHROUGH\n");
if (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS)
return sprintf(page, "SPC2_RESERVATIONS\n");
@ -1810,7 +1810,7 @@ static ssize_t target_pr_res_aptpl_active_show(struct config_item *item,
struct se_device *dev = pr_to_dev(item);
if (!dev->dev_attrib.emulate_pr ||
(dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_PGR))
(dev->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_PGR))
return 0;
return sprintf(page, "APTPL Bit Status: %s\n",
@ -1823,7 +1823,7 @@ static ssize_t target_pr_res_aptpl_metadata_show(struct config_item *item,
struct se_device *dev = pr_to_dev(item);
if (!dev->dev_attrib.emulate_pr ||
(dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_PGR))
(dev->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_PGR))
return 0;
return sprintf(page, "Ready to process PR APTPL metadata..\n");
@ -1870,7 +1870,7 @@ static ssize_t target_pr_res_aptpl_metadata_store(struct config_item *item,
u8 type = 0;
if (!dev->dev_attrib.emulate_pr ||
(dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_PGR))
(dev->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_PGR))
return count;
if (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS)
return count;

3
drivers/target/target_core_device.c
View File

@ -732,6 +732,7 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name)
dev->se_hba = hba;
dev->transport = hba->backend->ops;
dev->transport_flags = dev->transport->transport_flags_default;
dev->prot_length = sizeof(struct t10_pi_tuple);
dev->hba_index = hba->hba_index;
@ -1100,7 +1101,7 @@ passthrough_parse_cdb(struct se_cmd *cmd,
* emulate the response, since tcmu does not have the information
* required to process these commands.
*/
if (!(dev->transport->transport_flags &
if (!(dev->transport_flags &
TRANSPORT_FLAG_PASSTHROUGH_PGR)) {
if (cdb[0] == PERSISTENT_RESERVE_IN) {
cmd->execute_cmd = target_scsi3_emulate_pr_in;

2
drivers/target/target_core_pr.c
View File

@ -4086,7 +4086,7 @@ target_check_reservation(struct se_cmd *cmd)
return 0;
if (!dev->dev_attrib.emulate_pr)
return 0;
if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_PGR)
if (dev->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_PGR)
return 0;
spin_lock(&dev->dev_reservation_lock);

2
drivers/target/target_core_pscsi.c
View File

@ -1070,7 +1070,7 @@ static void pscsi_req_done(struct request *req, blk_status_t status)
static const struct target_backend_ops pscsi_ops = {
.name = "pscsi",
.owner = THIS_MODULE,
.transport_flags = TRANSPORT_FLAG_PASSTHROUGH |
.transport_flags_default = TRANSPORT_FLAG_PASSTHROUGH |
TRANSPORT_FLAG_PASSTHROUGH_ALUA |
TRANSPORT_FLAG_PASSTHROUGH_PGR,
.attach_hba = pscsi_attach_hba,

3
drivers/target/target_core_tpg.c
View File

@ -582,8 +582,7 @@ int core_tpg_add_lun(
if (ret)
goto out_kill_ref;
if (!(dev->transport->transport_flags &
TRANSPORT_FLAG_PASSTHROUGH_ALUA) &&
if (!(dev->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_ALUA) &&
!(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE))
target_attach_tg_pt_gp(lun, dev->t10_alua.default_tg_pt_gp);

6
drivers/target/target_core_transport.c
View File

@ -1397,7 +1397,7 @@ transport_check_alloc_task_attr(struct se_cmd *cmd)
* Check if SAM Task Attribute emulation is enabled for this
* struct se_device storage object
*/
if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH)
if (dev->transport_flags & TRANSPORT_FLAG_PASSTHROUGH)
return 0;
if (cmd->sam_task_attr == TCM_ACA_TAG) {
@ -2012,7 +2012,7 @@ static bool target_handle_task_attr(struct se_cmd *cmd)
{
struct se_device *dev = cmd->se_dev;
if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH)
if (dev->transport_flags & TRANSPORT_FLAG_PASSTHROUGH)
return false;
cmd->se_cmd_flags |= SCF_TASK_ATTR_SET;
@ -2126,7 +2126,7 @@ static void transport_complete_task_attr(struct se_cmd *cmd)
{
struct se_device *dev = cmd->se_dev;
if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH)
if (dev->transport_flags & TRANSPORT_FLAG_PASSTHROUGH)
return;
if (!(cmd->se_cmd_flags & SCF_TASK_ATTR_SET))

2
drivers/target/target_core_user.c
View File

@ -2616,7 +2616,7 @@ static struct configfs_attribute *tcmu_action_attrs[] = {
static struct target_backend_ops tcmu_ops = {
.name = "user",
.owner = THIS_MODULE,
.transport_flags = TRANSPORT_FLAG_PASSTHROUGH,
.transport_flags_default = TRANSPORT_FLAG_PASSTHROUGH,
.attach_hba = tcmu_attach_hba,
.detach_hba = tcmu_detach_hba,
.alloc_device = tcmu_alloc_device,

2
include/target/target_core_backend.h
View File

@ -23,7 +23,7 @@ struct target_backend_ops {
char inquiry_rev[4];
struct module *owner;
u8 transport_flags;
u8 transport_flags_default;
int (*attach_hba)(struct se_hba *, u32);
void (*detach_hba)(struct se_hba *);

1
include/target/target_core_base.h
View File

@ -772,6 +772,7 @@ struct se_device {
#define DF_USING_UDEV_PATH 0x00000008
#define DF_USING_ALIAS 0x00000010
#define DF_READ_ONLY 0x00000020
u8 transport_flags;
/* Physical device queue depth */
u32 queue_depth;
/* Used for SPC-2 reservations enforce of ISIDs */