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target: Use a PASSTHROUGH flag instead of transport_types 

It seems like we only care if a transport is passthrough or not. Convert
transport_type to a flags field and replace TRANSPORT_PLUGIN_* with a
flag, TRANSPORT_FLAG_PASSTHROUGH.

Signed-off-by: Andy Grover <agrover@redhat.com>
Reviewed-by: Ilias Tsitsimpis <iliastsi@arrikto.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Andy Grover 2015-05-19 14:44:41 -07:00 committed by Nicholas Bellinger
parent 7bfea53b5c
commit a3541703eb
11 changed files with 17 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/target/target_core_alua.c
View File

@ -704,7 +704,7 @@ target_alua_state_check(struct se_cmd *cmd)
if (dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)
return 0;
if (dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV)
if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH)
return 0;
if (!port)
@ -2377,7 +2377,7 @@ ssize_t core_alua_store_secondary_write_metadata(
int core_setup_alua(struct se_device *dev)
{
if (dev->transport->transport_type != TRANSPORT_PLUGIN_PHBA_PDEV &&
if (!(dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) &&
!(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)) {
struct t10_alua_lu_gp_member *lu_gp_mem;

10
drivers/target/target_core_configfs.c
View File

@ -811,7 +811,7 @@ static ssize_t target_core_dev_pr_show_attr_res_holder(struct se_device *dev,
{
int ret;
if (dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV)
if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH)
return sprintf(page, "Passthrough\n");
spin_lock(&dev->dev_reservation_lock);
@ -962,7 +962,7 @@ SE_DEV_PR_ATTR_RO(res_pr_type);
static ssize_t target_core_dev_pr_show_attr_res_type(
struct se_device *dev, char *page)
{
if (dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV)
if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH)
return sprintf(page, "SPC_PASSTHROUGH\n");
else if (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS)
return sprintf(page, "SPC2_RESERVATIONS\n");
@ -975,7 +975,7 @@ SE_DEV_PR_ATTR_RO(res_type);
static ssize_t target_core_dev_pr_show_attr_res_aptpl_active(
struct se_device *dev, char *page)
{
if (dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV)
if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH)
return 0;
return sprintf(page, "APTPL Bit Status: %s\n",
@ -990,7 +990,7 @@ SE_DEV_PR_ATTR_RO(res_aptpl_active);
static ssize_t target_core_dev_pr_show_attr_res_aptpl_metadata(
struct se_device *dev, char *page)
{
if (dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV)
if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH)
return 0;
return sprintf(page, "Ready to process PR APTPL metadata..\n");
@ -1037,7 +1037,7 @@ static ssize_t target_core_dev_pr_store_attr_res_aptpl_metadata(
u16 port_rpti = 0, tpgt = 0;
u8 type = 0, scope;
if (dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV)
if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH)
return 0;
if (dev->dev_reservation_flags & DRF_SPC2_RESERVATIONS)
return 0;

4
drivers/target/target_core_device.c
View File

@ -528,7 +528,7 @@ static void core_export_port(
list_add_tail(&port->sep_list, &dev->dev_sep_list);
spin_unlock(&dev->se_port_lock);
if (dev->transport->transport_type != TRANSPORT_PLUGIN_PHBA_PDEV &&
if (!(dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) &&
!(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)) {
tg_pt_gp_mem = core_alua_allocate_tg_pt_gp_mem(port);
if (IS_ERR(tg_pt_gp_mem) || !tg_pt_gp_mem) {
@ -1604,7 +1604,7 @@ int target_configure_device(struct se_device *dev)
* anything virtual (IBLOCK, FILEIO, RAMDISK), but not for TCM/pSCSI
* passthrough because this is being provided by the backend LLD.
*/
if (dev->transport->transport_type != TRANSPORT_PLUGIN_PHBA_PDEV) {
if (!(dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH)) {
strncpy(&dev->t10_wwn.vendor[0], "LIO-ORG", 8);
strncpy(&dev->t10_wwn.model[0],
dev->transport->inquiry_prod, 16);

1
drivers/target/target_core_file.c
View File

@ -958,7 +958,6 @@ static struct se_subsystem_api fileio_template = {
.inquiry_prod = "FILEIO",
.inquiry_rev = FD_VERSION,
.owner = THIS_MODULE,
.transport_type = TRANSPORT_PLUGIN_VHBA_PDEV,
.attach_hba = fd_attach_hba,
.detach_hba = fd_detach_hba,
.alloc_device = fd_alloc_device,

1
drivers/target/target_core_iblock.c
View File

@ -904,7 +904,6 @@ static struct se_subsystem_api iblock_template = {
.inquiry_prod = "IBLOCK",
.inquiry_rev = IBLOCK_VERSION,
.owner = THIS_MODULE,
.transport_type = TRANSPORT_PLUGIN_VHBA_PDEV,
.attach_hba = iblock_attach_hba,
.detach_hba = iblock_detach_hba,
.alloc_device = iblock_alloc_device,

2
drivers/target/target_core_pr.c
View File

@ -4093,7 +4093,7 @@ target_check_reservation(struct se_cmd *cmd)
return 0;
if (dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)
return 0;
if (dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV)
if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH)
return 0;
spin_lock(&dev->dev_reservation_lock);

2
drivers/target/target_core_pscsi.c
View File

@ -1141,7 +1141,7 @@ static struct configfs_attribute *pscsi_backend_dev_attrs[] = {
static struct se_subsystem_api pscsi_template = {
.name = "pscsi",
.owner = THIS_MODULE,
.transport_type = TRANSPORT_PLUGIN_PHBA_PDEV,
.transport_flags = TRANSPORT_FLAG_PASSTHROUGH,
.attach_hba = pscsi_attach_hba,
.detach_hba = pscsi_detach_hba,
.pmode_enable_hba = pscsi_pmode_enable_hba,

1
drivers/target/target_core_rd.c
View File

@ -733,7 +733,6 @@ static struct se_subsystem_api rd_mcp_template = {
.name = "rd_mcp",
.inquiry_prod = "RAMDISK-MCP",
.inquiry_rev = RD_MCP_VERSION,
.transport_type = TRANSPORT_PLUGIN_VHBA_VDEV,
.attach_hba = rd_attach_hba,
.detach_hba = rd_detach_hba,
.alloc_device = rd_alloc_device,

6
drivers/target/target_core_transport.c
View File

@ -1196,7 +1196,7 @@ 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_type == TRANSPORT_PLUGIN_PHBA_PDEV)
if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH)
return 0;
if (cmd->sam_task_attr == TCM_ACA_TAG) {
@ -1787,7 +1787,7 @@ static bool target_handle_task_attr(struct se_cmd *cmd)
{
struct se_device *dev = cmd->se_dev;
if (dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV)
if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH)
return false;
/*
@ -1912,7 +1912,7 @@ static void transport_complete_task_attr(struct se_cmd *cmd)
{
struct se_device *dev = cmd->se_dev;
if (dev->transport->transport_type == TRANSPORT_PLUGIN_PHBA_PDEV)
if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH)
return;
if (cmd->sam_task_attr == TCM_SIMPLE_TAG) {

2
drivers/target/target_core_user.c
View File

@ -1077,7 +1077,7 @@ static struct se_subsystem_api tcmu_template = {
.inquiry_prod = "USER",
.inquiry_rev = TCMU_VERSION,
.owner = THIS_MODULE,
.transport_type = TRANSPORT_PLUGIN_PHBA_PDEV,
.transport_flags = TRANSPORT_FLAG_PASSTHROUGH,
.attach_hba = tcmu_attach_hba,
.detach_hba = tcmu_detach_hba,
.alloc_device = tcmu_alloc_device,

6
include/target/target_core_backend.h
View File

@ -1,9 +1,7 @@
#ifndef TARGET_CORE_BACKEND_H
#define TARGET_CORE_BACKEND_H
#define TRANSPORT_PLUGIN_PHBA_PDEV 1
#define TRANSPORT_PLUGIN_VHBA_PDEV 2
#define TRANSPORT_PLUGIN_VHBA_VDEV 3
#define TRANSPORT_FLAG_PASSTHROUGH 1
struct target_backend_cits {
struct config_item_type tb_dev_cit;
@ -22,7 +20,7 @@ struct se_subsystem_api {
char inquiry_rev[4];
struct module *owner;
u8 transport_type;
u8 transport_flags;
int (*attach_hba)(struct se_hba *, u32);
void (*detach_hba)(struct se_hba *);