From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx> Greetings SCSI and Open-FCoE.org folks, Attached is a patch to lio-core-2.6.git/lio-4.0 to convert the TCM-FC / Open-FCoE.org fabric code in drivers/target/tcm_fc/tfc_conf.c to TCM 4.0 using the new fabric independent configfs infrastructure in drivers/target/target_core_fabric_configfs.c. Information about the TCM 4.0 configfs code can be found here along with links to the two previous patch series implementing core 4.0 functionalty and conversion of existing LIO-Target and TCM_Loop fabric modules to use the new infrastructure. http://groups.google.com/group/linux-iscsi-target-dev/browse_thread/thread/f3391e9bb0fefcd9 With this patch tfc_conf.c no longer defines it's own static struct config_item_type's, and uses the generic 'cits' hanging off struct target_fabric_configfs->tf_cit_tmpl. The following changes in struct ft_fabric_ops and ft_register_configfs() shows the adapted fabric API functions, and how local static attribute structures are setup to hang off the generic fabric cits.. >From struct target_core_fabric_ops ft_fabric_ops: /* * Setup function pointers for generic logic in target_core_fabric_configfs.c */ .fabric_make_wwn = &ft_add_lport, .fabric_drop_wwn = &ft_del_lport, .fabric_make_tpg = &ft_add_tpg, .fabric_drop_tpg = &ft_del_tpg, .fabric_post_link = NULL, .fabric_pre_unlink = NULL, .fabric_make_np = NULL, .fabric_drop_np = NULL, .fabric_make_nodeacl = &ft_add_acl, .fabric_drop_nodeacl = &ft_del_acl, and from ft_register_configfs() /* * Setup default attribute lists for various fabric->tf_cit_tmpl */ TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = ft_wwn_attrs; TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = NULL; TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = NULL; TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = NULL; TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL; TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = ft_nacl_base_attrs; TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = NULL; TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = NULL; TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = NULL; The existing TCM_FC fabric layout of /sys/kernel/config/target/fc/$LPORT_WWN/tpgt_$TPGT is up and running with this patch. Here is how it looks using TCM v4.0 fabric independent configfs infrastructure: target:~# tree /sys/kernel/config/target/fc/ /sys/kernel/config/target/fc/ |-- 20:00:00:0c:29:43:d5:7b | `-- tpgt_1 | |-- acls | | `-- 20:00:00:0c:29:43:d5:ff | | |-- attrib | | |-- auth | | |-- node_name | | |-- param | | `-- port_name | |-- attrib | |-- lun | | `-- lun_0 | | |-- alua_tg_pt_gp | | |-- alua_tg_pt_offline | | |-- alua_tg_pt_status | | |-- alua_tg_pt_write_md | | `-- tcm_fc_port -> ../../../../../../target/core/iblock_0/lvm_test0 | |-- np | `-- param |-- discovery_auth `-- version target:~# dmesg | tail -n 15 <<<<<<<<<<<<<<<<<<<<<< BEGIN FABRIC API >>>>>>>>>>>>>>>>>>>>>> Initialized struct target_fabric_configfs: c895a850 for fc <<<<<<<<<<<<<<<<<<<<<< END FABRIC API >>>>>>>>>>>>>>>>>>>>>> Target_Core_ConfigFS: REGISTER -> group: e121cb80 name: fc Target_Core_ConfigFS: REGISTER -> Located fabric: fc Target_Core_ConfigFS: REGISTER tfc_wwn_cit -> c895a9f8 Target_Core_ConfigFS: REGISTER -> Allocated Fabric: fc Target_Core_ConfigFS: REGISTER -> Set tf->tf_fabric for fc tcm_fc: ft_add_lport: add lport 20:00:00:0c:29:43:d5:7b tcm_fc: ft_add_tpg: tcm_fc: add tpg tpgt_1 TARGET_CORE[fc]: Allocated Normal se_portal_group_t for endpoint: 20:00:00:0c:29:43:d5:7b, Portal Tag: 1 tcm_fc: ft_add_acl: add acl 20:00:00:0c:29:43:d5:ff fc_TPG[1] - Added ACL with TCQ Depth: 32 for fc Initiator Node: 20:00:00:0c:29:43:d5:ff iblock/fc: Adding to default ALUA Target Port Group: alua/default_tg_pt_gp fc_TPG[1]_LUN[0] - Activated fc Logical Unit from CORE HBA: 4 target:~# cat /sys/kernel/config/target/fc/version TCM FC 0.2 on Linux/i686 on 2.6.34-rc3 target:~# lsmod Module Size Used by tcm_fc 16300 5 libfc 70996 1 tcm_fc target_core_mod 247964 30 tcm_fc scsi_tgt 8646 1 target_core_mod configfs 20504 2 target_core_mod Signed-off-by: Nicholas A. Bellinger <nab@xxxxxxxxxxxxxxx> --- drivers/target/tcm_fc/tcm_fc.h | 13 +- drivers/target/tcm_fc/tfc_conf.c | 784 +++++++------------------------------- drivers/target/tcm_fc/tfc_sess.c | 3 +- 3 files changed, 134 insertions(+), 666 deletions(-) diff --git a/drivers/target/tcm_fc/tcm_fc.h b/drivers/target/tcm_fc/tcm_fc.h index bef518c..f7400e9 100644 --- a/drivers/target/tcm_fc/tcm_fc.h +++ b/drivers/target/tcm_fc/tcm_fc.h @@ -104,10 +104,7 @@ struct ft_node_auth { */ struct ft_node_acl { struct ft_node_auth node_auth; - struct se_node_acl_s *se_node_acl; - - struct config_group auth_group; - struct config_group *groups[2]; /* NULL-terminator pointers to above */ + struct se_node_acl_s se_node_acl; }; struct ft_lun { @@ -124,11 +121,7 @@ struct ft_tpg { struct ft_tport *tport; /* active tport or NULL */ struct list_head list; /* linkage in ft_lport_acl tpg_list */ struct list_head lun_list; /* head of LUNs */ - struct se_portal_group_s *se_tpg; - struct config_group lun_group; /* lun subdir */ - struct config_group acl_group; /* acl subdir */ - struct config_group *groups[3]; /* pointers to subdirs, NULL-term */ - + struct se_portal_group_s se_tpg; struct task_struct *thread; /* processing thread */ struct se_queue_obj_s qobj; /* queue for processing thread */ }; @@ -138,7 +131,7 @@ struct ft_lport_acl { char name[FT_NAMELEN]; struct list_head list; struct list_head tpg_list; - struct config_group group; + struct se_wwn_s fc_lport_wwn; }; enum ft_cmd_state { diff --git a/drivers/target/tcm_fc/tfc_conf.c b/drivers/target/tcm_fc/tfc_conf.c index ca6a2c5..5608e3c 100644 --- a/drivers/target/tcm_fc/tfc_conf.c +++ b/drivers/target/tcm_fc/tfc_conf.c @@ -43,6 +43,7 @@ #include <target/target_core_base.h> #include <target/target_core_transport.h> #include <target/target_core_fabric_ops.h> +#include <target/target_core_fabric_configfs.h> #include <target/target_core_device.h> #include <target/target_core_tpg.h> #include <target/target_core_configfs.h> @@ -63,58 +64,6 @@ module_param_named(debug_logging, ft_debug_logging, int, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(debug_logging, "a bit mask of logging levels"); /* - * Configfs infrastructure, possibly. - */ -struct ft_attr { - struct configfs_attribute attr; - u32 offset; /* offset of attribute value in parent struct */ - void *(*obj_from_item)(struct config_item *); - ssize_t (*show)(void *, char *); - ssize_t (*store)(void *, const char *, size_t); -}; - -static ssize_t ft_show_item(struct config_item *item, - struct configfs_attribute *attr, char *buf) -{ - struct ft_attr *ft_attr; - void *ptr; - - ft_attr = container_of(attr, struct ft_attr, attr); - ptr = ft_attr->obj_from_item(item) + ft_attr->offset; - return ft_attr->show(ptr, buf); -} - -static ssize_t ft_store_item(struct config_item *item, - struct configfs_attribute *attr, - const char *buf, size_t len) -{ - struct ft_attr *ft_attr; - void *ptr; - - ft_attr = container_of(attr, struct ft_attr, attr); - ptr = ft_attr->obj_from_item(item) + ft_attr->offset; - return ft_attr->store(ptr, buf, len); -} - -static struct configfs_item_operations ft_item_ops = { - .show_attribute = ft_show_item, - .store_attribute = ft_store_item, -}; - -#define FT_ATTR(_name, _type, _field, _mode, _find, _show, _store) \ - { \ - .attr = { \ - .ca_name = (_name), \ - .ca_mode = (_mode), \ - .ca_owner = THIS_MODULE, \ - }, \ - .offset = offsetof(struct _type, _field), \ - .obj_from_item = (_find), \ - .show = (_show), \ - .store = (_store), \ - } - -/* * Parse WWN. * If strict, we require lower-case hex and colon separators to be sure * the name is the same as what would be generated by ft_format_wwn() @@ -195,488 +144,61 @@ static ssize_t ft_wwn_store(void *arg, const char *buf, size_t len) } /* - * Target port LUN port ops. - */ - -static struct ft_tpg *ft_tpg_from_lun_ci(struct config_item *lun_ci) -{ - struct config_item *tpg_ci; - struct se_portal_group_s *se_tpg; - - tpg_ci = &lun_ci->ci_parent->ci_group->cg_item; - se_tpg = container_of(to_config_group(tpg_ci), - struct se_portal_group_s, tpg_group); - return se_tpg->se_tpg_fabric_ptr; -} - -/* - * For ALUA Target port attributes for port LUN - */ -CONFIGFS_EATTR_STRUCT(ft_lun_port, se_lun_s); -#define FT_PORT_ATTR(_name, _mode) \ -static struct ft_lun_port_attribute ft_lun_port_##_name = \ - __CONFIGFS_EATTR(_name, _mode, \ - ft_lun_port_show_attr_##_name, \ - ft_lun_port_store_attr_##_name); - -/* - * alua_tg_pt_gp - */ -static ssize_t ft_lun_port_show_attr_alua_tg_pt_gp( - struct se_lun_s *lun, - char *page) -{ - if (!(lun->lun_sep)) - return -ENODEV; - - return core_alua_show_tg_pt_gp_info(lun->lun_sep, page); -} - -static ssize_t ft_lun_port_store_attr_alua_tg_pt_gp( - struct se_lun_s *lun, - const char *page, - size_t count) -{ - if (!(lun->lun_sep)) - return -ENODEV; - - return core_alua_store_tg_pt_gp_info(lun->lun_sep, page, count); -} - -FT_PORT_ATTR(alua_tg_pt_gp, S_IRUGO | S_IWUSR); - -/* - * alua_tg_pt_offline + * ACL auth ops. */ -static ssize_t ft_lun_port_show_attr_alua_tg_pt_offline( - struct se_lun_s *lun, - char *page) -{ - if (!(lun->lun_sep)) - return -ENODEV; - return core_alua_show_offline_bit(lun, page); -} - -static ssize_t ft_lun_port_store_attr_alua_tg_pt_offline( - struct se_lun_s *lun, - const char *page, - size_t count) -{ - if (!(lun->lun_sep)) - return -ENODEV; - - return core_alua_store_offline_bit(lun, page, count); -} - -FT_PORT_ATTR(alua_tg_pt_offline, S_IRUGO | S_IWUSR); - -/* - * alua_tg_pt_status - */ -static ssize_t ft_lun_port_show_attr_alua_tg_pt_status( - struct se_lun_s *lun, +static ssize_t ft_nacl_show_port_name( + struct se_node_acl_s *se_nacl, char *page) { - if (!(lun->lun_sep)) - return -ENODEV; + struct ft_node_acl *acl = container_of(se_nacl, + struct ft_node_acl, se_node_acl); - return core_alua_show_secondary_status(lun, page); + return ft_wwn_show(&acl->node_auth.port_name, page); } -static ssize_t ft_lun_port_store_attr_alua_tg_pt_status( - struct se_lun_s *lun, +static ssize_t ft_nacl_store_port_name( + struct se_node_acl_s *se_nacl, const char *page, size_t count) { - if (!(lun->lun_sep)) - return -ENODEV; + struct ft_node_acl *acl = container_of(se_nacl, + struct ft_node_acl, se_node_acl); - return core_alua_store_secondary_status(lun, page, count); + return ft_wwn_store(&acl->node_auth.port_name, page, count); } -FT_PORT_ATTR(alua_tg_pt_status, S_IRUGO | S_IWUSR); +TF_NACL_BASE_ATTR(ft, port_name, S_IRUGO | S_IWUSR); -/* - * alua_tg_pt_write_md - */ -static ssize_t ft_lun_port_show_attr_alua_tg_pt_write_md( - struct se_lun_s *lun, +static ssize_t ft_nacl_show_node_name( + struct se_node_acl_s *se_nacl, char *page) { - if (!(lun->lun_sep)) - return -ENODEV; + struct ft_node_acl *acl = container_of(se_nacl, + struct ft_node_acl, se_node_acl); - return core_alua_show_secondary_write_metadata(lun, page); + return ft_wwn_show(&acl->node_auth.node_name, page); } -static ssize_t ft_lun_port_store_attr_alua_tg_pt_write_md( - struct se_lun_s *lun, +static ssize_t ft_nacl_store_node_name( + struct se_node_acl_s *se_nacl, const char *page, size_t count) { - if (!(lun->lun_sep)) - return -ENODEV; - - return core_alua_store_secondary_write_metadata(lun, page, count); -} - -FT_PORT_ATTR(alua_tg_pt_write_md, S_IRUGO | S_IWUSR); - -static struct configfs_attribute *ft_lun_port_attrs[] = { - &ft_lun_port_alua_tg_pt_gp.attr, - &ft_lun_port_alua_tg_pt_offline.attr, - &ft_lun_port_alua_tg_pt_status.attr, - &ft_lun_port_alua_tg_pt_write_md.attr, - NULL, -}; - -CONFIGFS_EATTR_OPS(ft_lun_port, se_lun_s, lun_group); - -static int ft_lun_port_link(struct config_item *lun_ci, - struct config_item *se_dev_ci) -{ - struct ft_tpg *tpg; - se_device_t *dev; - se_lun_t *lun = container_of(to_config_group(lun_ci), - se_lun_t, lun_group); - se_lun_t *lun_p; - se_subsystem_dev_t *se_dev = container_of( - to_config_group(se_dev_ci), se_subsystem_dev_t, se_dev_group); - - if (lun->lun_type_ptr != NULL) { - FT_CONF_DBG("Port Symlink already exists\n"); - return -EEXIST; - } - - tpg = ft_tpg_from_lun_ci(lun_ci); - if (!tpg) - return -EINVAL; - - dev = se_dev->se_dev_ptr; - if (!dev) { - FT_CONF_DBG("Unable to locate se_device_t pointer from %s\n", - config_item_name(se_dev_ci)); - return -ENODEV; - } - - lun_p = core_dev_add_lun(tpg->se_tpg, dev->se_hba, dev, - lun->unpacked_lun); - if (IS_ERR(lun_p) || !lun_p) { - FT_CONF_DBG("core_dev_add_lun() failed: %ld\n", PTR_ERR(lun_p)); - return -EINVAL; - } - - FT_CONF_DBG("Created Port Symlink %s -> %s\n", - config_item_name(se_dev_ci), config_item_name(lun_ci)); - return 0; -} - -static int ft_lun_port_check_link(struct config_item *lun_ci, - struct config_item *se_dev_ci) -{ - se_lun_t *lun = container_of(to_config_group(lun_ci), - se_lun_t, lun_group); - - return atomic_read(&lun->lun_acl_count) ? -EPERM : 0; -} - -static int ft_lun_port_unlink(struct config_item *lun_ci, - struct config_item *se_dev_ci) -{ - struct ft_tpg *tpg; - se_lun_t *lun = container_of(to_config_group(lun_ci), - se_lun_t, lun_group); - int ret; - - tpg = ft_tpg_from_lun_ci(lun_ci); - if (!tpg) - return -EINVAL; - - ret = core_dev_del_lun(tpg->se_tpg, lun->unpacked_lun); - - FT_CONF_DBG("Removed Port Symlink %s -> %s\n", - config_item_name(se_dev_ci), config_item_name(lun_ci)); - return ret; -} - -static struct configfs_item_operations ft_lun_port_item_ops = { - .show_attribute = ft_lun_port_attr_show, - .store_attribute = ft_lun_port_attr_store, - .allow_link = ft_lun_port_link, - .check_link = ft_lun_port_check_link, - .drop_link = ft_lun_port_unlink, -}; - -static struct config_item_type ft_lun_port_cit = { - .ct_item_ops = &ft_lun_port_item_ops, - .ct_attrs = ft_lun_port_attrs, - .ct_owner = THIS_MODULE, -}; - -/* - * LUN ops. - */ - -static struct config_group *ft_add_lun(struct config_group *group, - const char *name) -{ - struct se_lun_s *lun; - struct ft_tpg *tpg; - unsigned long index; - - FT_CONF_DBG("add lun %s\n", name); - - /* - * Name must be "lun_" followed by the index. - */ - if (strstr(name, "lun_") != name) - return NULL; - - if (strict_strtoul(name + 4, 10, &index) || index > UINT_MAX) - return NULL; - - tpg = container_of(group, struct ft_tpg, lun_group); - lun = core_get_lun_from_tpg(tpg->se_tpg, index); - if (!lun) - return NULL; - config_group_init_type_name(&lun->lun_group, name, &ft_lun_port_cit); - return &lun->lun_group; -} - -static void ft_del_lun(struct config_group *group, struct config_item *item) -{ - FT_CONF_DBG("del lun %s p %p\n", config_item_name(item), item); - config_item_put(item); -} - -static struct configfs_group_operations ft_lun_group_ops = { - .make_group = ft_add_lun, - .drop_item = ft_del_lun, -}; - -static struct config_item_type ft_lun_cit = { - .ct_group_ops = &ft_lun_group_ops, - .ct_owner = THIS_MODULE, -}; - -/* - * LUN ACL item ops. - */ - -static int ft_lun_acl_link(struct config_item *lun_acl_ci, - struct config_item *lun_ci) -{ - struct se_node_acl_s *se_nacl; - struct se_lun_s *lun; - struct se_lun_acl_s *lun_acl; - struct se_portal_group_s *se_tpg; - struct se_dev_entry_s *deve; - struct config_item *item; - struct config_group *tpg_group; - int lun_access; - int ret; - - FT_CONF_DBG("links %s to %s\n", - config_item_name(lun_acl_ci), config_item_name(lun_ci)); - - /* - * Make sure parent of lun_ci is same TPG as parent of lun_acl_ci. - * lun_acl_ci is fc/<tpg>/acl/<wwpn>/lun_<x> - * lun_ci is fc/<tpg>/lun/lun_<y> - * tpg should be equal. - */ - item = lun_acl_ci->ci_parent; /* node acl <wwpn> */ - item = item->ci_parent; /* "acl" */ - tpg_group = item->ci_group; /* <tpg> */ - item = lun_ci->ci_parent; /* "lun" */ - if (!item) - return -EINVAL; - - FT_CONF_DBG("tpg_group %s to lun_tpg %s\n", - config_item_name(&tpg_group->cg_item), - config_item_name(&item->ci_group->cg_item)); - - if (tpg_group != item->ci_group) { - FT_CONF_DBG("links not in same tpg\n"); - return -EINVAL; - } - - lun_acl = container_of(to_config_group(lun_acl_ci), - struct se_lun_acl_s, se_lun_group); - lun = container_of(to_config_group(lun_ci), se_lun_t, lun_group); - - se_tpg = container_of(tpg_group, struct se_portal_group_s, tpg_group); - - se_nacl = lun_acl->se_lun_nacl; - spin_lock_bh(&se_nacl->device_list_lock); - deve = &se_nacl->device_list[lun_acl->mapped_lun]; - if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) - lun_access = deve->lun_flags; - else - lun_access = TRANSPORT_LUNFLAGS_READ_WRITE; /* XXX */ - spin_unlock_bh(&se_nacl->device_list_lock); - - ret = core_dev_add_initiator_node_lun_acl(se_tpg, lun_acl, - lun->unpacked_lun, lun_access); - if (ret < 0) { - FT_CONF_DBG("link %s to %s ret %d\n", - config_item_name(lun_acl_ci), - config_item_name(lun_ci), ret); - return ret; - } - return 0; -} - -static int ft_lun_acl_unlink(struct config_item *lun_acl_ci, - struct config_item *lun_ci) -{ - struct se_lun_s *lun; - struct se_lun_acl_s *lun_acl; - struct se_portal_group_s *se_tpg; - struct config_group *tpg_group; - int ret; - - FT_CONF_DBG("unlink %s and %s\n", - config_item_name(lun_acl_ci), - config_item_name(lun_ci)); - /* - * lun_acl_ci is fc/<tpg>/acl/<wwpn>/lun_<x> - * lun_ci is fc/<tpg>/lun/lun_<y> - */ - tpg_group = lun_acl_ci->ci_parent->ci_parent->ci_group; - - FT_CONF_DBG("tpg_group %s delete lun_acl %s\n", - config_item_name(&tpg_group->cg_item), - config_item_name(lun_acl_ci)); - - lun_acl = container_of(to_config_group(lun_acl_ci), - struct se_lun_acl_s, se_lun_group); - lun = container_of(to_config_group(lun_ci), se_lun_t, lun_group); - - se_tpg = container_of(tpg_group, struct se_portal_group_s, tpg_group); - - ret = core_dev_del_initiator_node_lun_acl(se_tpg, lun, lun_acl); - if (ret < 0) { - FT_CONF_DBG("link %s to %s ret %d\n", - config_item_name(lun_acl_ci), - config_item_name(lun_ci), ret); - return ret; - } - return 0; -} - -static struct configfs_item_operations ft_lun_acl_item_ops = { - .allow_link = ft_lun_acl_link, - .drop_link = ft_lun_acl_unlink, -}; + struct ft_node_acl *acl = container_of(se_nacl, + struct ft_node_acl, se_node_acl); -static struct config_item_type ft_lun_acl_cit = { - .ct_item_ops = &ft_lun_acl_item_ops, - .ct_attrs = NULL, - .ct_owner = THIS_MODULE, -}; - -/* - * LUN ACL group ops. - */ - -static struct config_group *ft_add_lun_acl(struct config_group *group, - const char *name) -{ - struct se_lun_acl_s *lun_acl; - struct se_node_acl_s *se_nacl; - struct se_portal_group_s *se_tpg; - unsigned long index; - int ret; - - FT_CONF_DBG("add lun acl %s\n", name); - - /* - * Name must be "lun_" followed by the index. - */ - if (strstr(name, "lun_") != name) - return NULL; - - if (strict_strtoul(name + 4, 10, &index) || index > UINT_MAX) - return NULL; - - se_nacl = container_of(group, struct se_node_acl_s, acl_group); - se_tpg = se_nacl->se_tpg; - - FT_CONF_DBG("add lun acl %s init name %s\n", name, - config_item_name(&se_nacl->acl_group.cg_item)); - - lun_acl = core_dev_init_initiator_node_lun_acl(se_tpg, index, - config_item_name(&se_nacl->acl_group.cg_item), &ret); - if (!lun_acl) - return NULL; - - config_group_init_type_name(&lun_acl->se_lun_group, name, - &ft_lun_acl_cit); - - return &lun_acl->se_lun_group; + return ft_wwn_store(&acl->node_auth.node_name, page, count); } -static void ft_del_lun_acl(struct config_group *group, - struct config_item *item) -{ - struct se_lun_acl_s *lun_acl; - struct se_node_acl_s *se_nacl; - struct se_portal_group_s *se_tpg; +TF_NACL_BASE_ATTR(ft, node_name, S_IRUGO | S_IWUSR); - FT_CONF_DBG("del lun acl %s p %p\n", config_item_name(item), item); - - se_nacl = container_of(group, struct se_node_acl_s, acl_group); - se_tpg = se_nacl->se_tpg; - lun_acl = container_of(to_config_group(item), - struct se_lun_acl_s, se_lun_group); - - core_dev_free_initiator_node_lun_acl(se_tpg, lun_acl); - config_item_put(item); -} - -static struct configfs_group_operations ft_lun_acl_group_ops = { - .make_group = ft_add_lun_acl, - .drop_item = ft_del_lun_acl, -}; - -/* - * ACL auth ops. - */ - -static void *ft_acl_from_auth(struct config_item *item) -{ - return container_of(item->ci_group, struct se_node_acl_s, acl_group); -} - -static struct ft_attr ft_acl_port_name_attr = - FT_ATTR("port_name", ft_node_acl, node_auth.port_name, - S_IRUGO, ft_acl_from_auth, - ft_wwn_show, ft_wwn_store); - -static struct ft_attr ft_acl_node_name_attr = - FT_ATTR("node_name", ft_node_acl, node_auth.node_name, - S_IRUGO | S_IWUSR, ft_acl_from_auth, - ft_wwn_show, ft_wwn_store); - -static struct configfs_attribute *ft_nacl_auth_attrs[] = { - &ft_acl_port_name_attr.attr, - &ft_acl_node_name_attr.attr, +static struct configfs_attribute *ft_nacl_base_attrs[] = { + &ft_nacl_port_name.attr, + &ft_nacl_node_name.attr, NULL, }; -static struct config_item_type ft_nacl_auth_cit = { - .ct_item_ops = &ft_item_ops, - .ct_attrs = ft_nacl_auth_attrs, - .ct_owner = THIS_MODULE, -}; - -static struct config_item_type ft_nacl_cit = { - .ct_group_ops = &ft_lun_acl_group_ops, - .ct_owner = THIS_MODULE, -}; - /* * ACL ops. */ @@ -685,8 +207,10 @@ static struct config_item_type ft_nacl_cit = { * Add ACL for an initiator. The ACL is named arbitrarily. * The port_name and/or node_name are attributes. */ -static struct config_group *ft_add_acl(struct config_group *group, - const char *name) +static struct se_node_acl_s *ft_add_acl( + struct se_portal_group_s *se_tpg, + struct config_group *group, + const char *name) { struct ft_node_acl *acl; struct se_node_acl_s *se_nacl; @@ -695,64 +219,55 @@ static struct config_group *ft_add_acl(struct config_group *group, u32 q_depth; FT_CONF_DBG("add acl %s\n", name); - tpg = container_of(group, struct ft_tpg, acl_group); + tpg = container_of(se_tpg, struct ft_tpg, se_tpg); if (ft_parse_wwn(name, &wwpn, 1) < 0) - return NULL; + return ERR_PTR(-EINVAL); + + acl = kzalloc(sizeof(struct ft_node_acl), GFP_KERNEL); + if (!(acl)) + return ERR_PTR(-ENOMEM); q_depth = 32; /* XXX bogus default - get from tpg? */ - se_nacl = core_tpg_add_initiator_node_acl(tpg->se_tpg, name, q_depth); - if (IS_ERR(se_nacl) || !se_nacl) - return NULL; + se_nacl = core_tpg_add_initiator_node_acl(&tpg->se_tpg, + &acl->se_node_acl, name, q_depth); + if (IS_ERR(se_nacl) || !se_nacl) { + kfree(acl); + return se_nacl; + } - acl = se_nacl->fabric_acl_ptr; acl->node_auth.port_name = wwpn; - config_group_init_type_name(&se_nacl->acl_group, name, &ft_nacl_cit); - config_group_init_type_name(&acl->auth_group, "auth", - &ft_nacl_auth_cit); -/* XXXX TBD add se_acl->param_group to groups */ - acl->groups[0] = &acl->auth_group; - acl->groups[3] = NULL; - se_nacl->acl_group.default_groups = acl->groups; - - return &se_nacl->acl_group; + return &acl->se_node_acl; } -static void ft_del_acl(struct config_group *group, struct config_item *item) +static void ft_del_acl(struct se_node_acl_s *se_acl) { + struct se_portal_group_s *se_tpg = se_acl->se_tpg; struct ft_tpg *tpg; - struct ft_node_acl *acl; - struct se_node_acl_s *se_acl; + struct ft_node_acl *acl = container_of(se_acl, + struct ft_node_acl, se_node_acl); - FT_CONF_DBG("del acl %s\n", config_item_name(item)); - - tpg = container_of(group, struct ft_tpg, acl_group); - se_acl = container_of(to_config_group(item), struct se_node_acl_s, - acl_group); - acl = se_acl->fabric_acl_ptr; + FT_CONF_DBG("del acl %s\n", + config_item_name(&se_acl->acl_group.cg_item)); + tpg = container_of(se_tpg, struct ft_tpg, se_tpg); FT_CONF_DBG("del acl %p se_acl %p tpg %p se_tpg %p\n", - acl, se_acl, tpg, tpg->se_tpg); + acl, se_acl, tpg, &tpg->se_tpg); - core_tpg_del_initiator_node_acl(tpg->se_tpg, se_acl, 1); - config_item_put(item); + core_tpg_del_initiator_node_acl(&tpg->se_tpg, se_acl, 1); + kfree(acl); } struct ft_node_acl *ft_acl_get(struct ft_tpg *tpg, struct fc_rport_priv *rdata) { struct ft_node_acl *found = NULL; struct ft_node_acl *acl; - struct se_portal_group_s *se_tpg; + struct se_portal_group_s *se_tpg = &tpg->se_tpg; struct se_node_acl_s *se_acl; - se_tpg = tpg->se_tpg; - if (!se_tpg) { - FT_CONF_DBG("tpg %p se_tpg NULL\n", tpg); - return NULL; - } spin_lock_bh(&se_tpg->acl_node_lock); list_for_each_entry(se_acl, &se_tpg->acl_node_list, acl_list) { - acl = se_acl->fabric_acl_ptr; + acl = container_of(se_acl, struct ft_node_acl, se_node_acl); FT_CONF_DBG("acl %p port_name %llx\n", acl, (unsigned long long)acl->node_auth.port_name); if (acl->node_auth.port_name == rdata->ids.port_name || @@ -768,56 +283,41 @@ struct ft_node_acl *ft_acl_get(struct ft_tpg *tpg, struct fc_rport_priv *rdata) return found; } -static void *ft_tpg_alloc_fabric_acl(se_portal_group_t *se_tpg, - se_node_acl_t *se_nacl) +struct se_node_acl_s *ft_tpg_alloc_fabric_acl(se_portal_group_t *se_tpg) { struct ft_node_acl *acl; acl = kzalloc(sizeof(*acl), GFP_KERNEL); - if (acl) - acl->se_node_acl = se_nacl; + if (!(acl)) { + printk(KERN_ERR "Unable to allocate struct ft_node_acl\n"); + return NULL; + } FT_CONF_DBG("acl %p\n", acl); - return acl; + return &acl->se_node_acl; } static void ft_tpg_release_fabric_acl(se_portal_group_t *se_tpg, se_node_acl_t *se_acl) { - struct ft_node_acl *acl = se_acl->fabric_acl_ptr; + struct ft_node_acl *acl = container_of(se_acl, + struct ft_node_acl, se_node_acl); FT_CONF_DBG(KERN_INFO "acl %p\n", acl); - /* freed after put item in del_acl now */ + kfree(acl); } -static struct configfs_group_operations ft_acl_group_ops = { - .make_group = ft_add_acl, - .drop_item = ft_del_acl, -}; - -static struct config_item_type ft_acl_cit = { - .ct_group_ops = &ft_acl_group_ops, - .ct_owner = THIS_MODULE, -}; - -/* - * Target port group ops. - * Nothing for now - add enable/disable to protect during setup, eventually. - */ -static struct config_item_type ft_tpg_cit = { - .ct_owner = THIS_MODULE, -}; - /* * local_port port_group (tpg) ops. */ -static struct config_group *ft_add_tpg(struct config_group *group, - const char *name) +static struct se_portal_group_s *ft_add_tpg( + struct se_wwn_s *wwn, + struct config_group *group, + const char *name) { struct ft_lport_acl *lacl; struct ft_tpg *tpg; - struct se_portal_group_s *se_tpg; - struct config_group *tpg_cg; unsigned long index; + int ret; FT_CONF_DBG("tcm_fc: add tpg %s\n", name); @@ -829,7 +329,7 @@ static struct config_group *ft_add_tpg(struct config_group *group, if (strict_strtoul(name + 5, 10, &index) || index > UINT_MAX) return NULL; - lacl = container_of(group, struct ft_lport_acl, group); + lacl = container_of(wwn, struct ft_lport_acl, fc_lport_wwn); tpg = kzalloc(sizeof(*tpg), GFP_KERNEL); if (!tpg) return NULL; @@ -838,18 +338,15 @@ static struct config_group *ft_add_tpg(struct config_group *group, INIT_LIST_HEAD(&tpg->lun_list); transport_init_queue_obj(&tpg->qobj); - se_tpg = core_tpg_register(&ft_configfs->tf_ops, tpg, - TRANSPORT_TPG_TYPE_NORMAL); - if (IS_ERR(se_tpg)) { + ret = core_tpg_register(&ft_configfs->tf_ops, wwn, &tpg->se_tpg, + (void *)tpg, TRANSPORT_TPG_TYPE_NORMAL); + if (ret < 0) { kfree(tpg); return NULL; } - tpg->se_tpg = se_tpg; - se_tpg->se_tpg_fabric_ptr = tpg; tpg->thread = kthread_run(ft_thread, tpg, "ft_tpg%lu", index); if (IS_ERR(tpg->thread)) { - core_tpg_deregister(se_tpg); kfree(tpg); return NULL; } @@ -859,27 +356,16 @@ static struct config_group *ft_add_tpg(struct config_group *group, list_add_tail(&tpg->list, &lacl->tpg_list); mutex_unlock(&ft_lport_lock); - tpg_cg = &se_tpg->tpg_group; - tpg_cg->default_groups = tpg->groups; - config_group_init_type_name(&tpg->lun_group, "lun", &ft_lun_cit); - config_group_init_type_name(&tpg->acl_group, "acl", &ft_acl_cit); - tpg->groups[0] = &tpg->lun_group; - tpg->groups[1] = &tpg->acl_group; - tpg->groups[2] = NULL; - - config_group_init_type_name(tpg_cg, name, &ft_tpg_cit); - return tpg_cg; + return &tpg->se_tpg; } -static void ft_del_tpg(struct config_group *group, struct config_item *item) +static void ft_del_tpg(struct se_portal_group_s *se_tpg) { - struct se_portal_group_s *se_tpg; - struct ft_tpg *tpg; + struct ft_tpg *tpg = container_of(se_tpg, struct ft_tpg, se_tpg); - FT_CONF_DBG("del tpg %s\n", config_item_name(item)); - se_tpg = container_of(to_config_group(item), se_portal_group_t, - tpg_group); - tpg = se_tpg->se_tpg_fabric_ptr; + FT_CONF_DBG("del tpg %s\n", + config_item_name(&tpg->se_tpg.tpg_group.cg_item)); + kthread_stop(tpg->thread); wait_for_completion(&tpg->qobj.thread_done_comp); @@ -894,7 +380,6 @@ static void ft_del_tpg(struct config_group *group, struct config_item *item) } mutex_unlock(&ft_lport_lock); - config_item_put(item); core_tpg_deregister(se_tpg); kfree(tpg); } @@ -920,26 +405,6 @@ struct ft_tpg *ft_lport_find_tpg(struct fc_lport *lport) return NULL; } -static void ft_free_lport(struct config_item *item) -{ - kfree(container_of(item, struct ft_lport_acl, group.cg_item)); -} - -static struct configfs_item_operations ft_lport_item_ops = { - .release = ft_free_lport, -}; - -static struct configfs_group_operations ft_lport_group_ops = { - .make_group = ft_add_tpg, - .drop_item = ft_del_tpg, -}; - -static struct config_item_type ft_lport_cit = { - .ct_item_ops = &ft_lport_item_ops, - .ct_group_ops = &ft_lport_group_ops, - .ct_owner = THIS_MODULE, -}; - /* * target config instance ops. */ @@ -948,8 +413,10 @@ static struct config_item_type ft_lport_cit = { * Add lport to allowed config. * The name is the WWPN in lower-case ASCII, colon-separated bytes. */ -static struct config_group *ft_add_lport(struct config_group *group, - const char *name) +static struct se_wwn_s *ft_add_lport( + struct target_fabric_configfs *tf, + struct config_group *group, + const char *name) { struct ft_lport_acl *lacl; struct ft_lport_acl *old_lacl; @@ -975,56 +442,39 @@ static struct config_group *ft_add_lport(struct config_group *group, list_add_tail(&lacl->list, &ft_lport_list); ft_format_wwn(lacl->name, sizeof(lacl->name), wwpn); mutex_unlock(&ft_lport_lock); - config_group_init_type_name(&lacl->group, lacl->name, - &ft_lport_cit); - return &lacl->group; + + return &lacl->fc_lport_wwn; } -static void ft_del_lport(struct config_group *group, struct config_item *item) +static void ft_del_lport(struct se_wwn_s *wwn) { - struct ft_lport_acl *lacl = container_of(to_config_group(item), - struct ft_lport_acl, group); + struct ft_lport_acl *lacl = container_of(wwn, + struct ft_lport_acl, fc_lport_wwn); - FT_CONF_DBG("del lport %s\n", config_item_name(item)); + FT_CONF_DBG("del lport %s\n", + config_item_name(&wwn->wwn_group.cg_item)); mutex_lock(&ft_lport_lock); list_del(&lacl->list); mutex_unlock(&ft_lport_lock); - config_item_put(item); -} -static struct configfs_group_operations ft_group_ops = { - .make_group = ft_add_lport, - .drop_item = ft_del_lport, -}; + kfree(lacl); +} -static ssize_t ft_version_show(struct config_item *item, - struct configfs_attribute *attr, char *page) +static ssize_t ft_wwn_show_attr_version( + struct target_fabric_configfs *tf, + char *page) { - return sprintf(page, "TCM FC " FT_VERSION "\n"); + return sprintf(page, "TCM FC " FT_VERSION " on %s/%s on " + ""UTS_RELEASE"\n", utsname()->sysname, utsname()->machine); } -static struct configfs_item_operations ft_item_attr_version_ops = { - .show_attribute = ft_version_show, -}; - -static struct configfs_attribute ft_item_attr_version = { - .ca_owner = THIS_MODULE, - .ca_name = "version", - .ca_mode = S_IRUGO, -}; +TF_WWN_ATTR_RO(ft, version); -static struct configfs_attribute *ft_attrs[] = { - &ft_item_attr_version, +static struct configfs_attribute *ft_wwn_attrs[] = { + &ft_wwn_version.attr, NULL, }; -static struct config_item_type ft_cit = { - .ct_item_ops = &ft_item_attr_version_ops, - .ct_group_ops = &ft_group_ops, - .ct_attrs = ft_attrs, - .ct_owner = THIS_MODULE, -}; - static char *ft_get_fabric_name(void) { return "fc"; @@ -1072,7 +522,8 @@ static u32 ft_get_pr_transport_id(se_portal_group_t *se_tpg, t10_pr_registration_t *pr_reg, int *format_code, unsigned char *buf) { - struct ft_node_acl *acl = (struct ft_node_acl *)se_nacl->fabric_acl_ptr; + struct ft_node_acl *acl = container_of(se_nacl, struct ft_node_acl, + se_node_acl); struct ft_transport_id *id = (struct ft_transport_id *)buf; /* * PROTOCOL IDENTIFIER is 0h for FCP-2 @@ -1171,6 +622,20 @@ static struct target_core_fabric_ops ft_fabric_ops = { .set_fabric_sense_len = ft_set_fabric_sense_len, .is_state_remove = ft_is_state_remove, .pack_lun = ft_pack_lun, + /* + * Setup function pointers for generic logic in target_core_fabric_configfs.c + */ + .fabric_make_wwn = &ft_add_lport, + .fabric_drop_wwn = &ft_del_lport, + .fabric_make_tpg = &ft_add_tpg, + .fabric_drop_tpg = &ft_del_tpg, + .fabric_post_link = NULL, + .fabric_pre_unlink = NULL, + .fabric_make_np = NULL, + .fabric_drop_np = NULL, + .fabric_make_nodeacl = &ft_add_acl, + .fabric_drop_nodeacl = &ft_del_acl, + }; int ft_register_configfs(void) @@ -1181,14 +646,25 @@ int ft_register_configfs(void) /* * Register the top level struct config_item_type with TCM core */ - fabric = target_fabric_configfs_init(&ft_cit, "fc"); + fabric = target_fabric_configfs_init(THIS_MODULE, "fc"); if (!fabric) { printk(KERN_INFO "%s: target_fabric_configfs_init() failed!\n", __func__); return -1; } fabric->tf_ops = ft_fabric_ops; - + /* + * Setup default attribute lists for various fabric->tf_cit_tmpl + */ + TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = ft_wwn_attrs; + TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = NULL; + TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = NULL; + TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = NULL; + TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL; + TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = ft_nacl_base_attrs; + TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = NULL; + TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = NULL; + TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = NULL; /* * register the fabric for use within TCM */ diff --git a/drivers/target/tcm_fc/tfc_sess.c b/drivers/target/tcm_fc/tfc_sess.c index b3d9383..8074d85 100644 --- a/drivers/target/tcm_fc/tfc_sess.c +++ b/drivers/target/tcm_fc/tfc_sess.c @@ -243,8 +243,7 @@ static struct ft_sess *ft_sess_create(struct ft_tport *tport, u32 port_id, FT_SESS_DBG("port_id %x sess %p\n", port_id, sess); - sess->se_sess->se_node_acl = acl->se_node_acl; - transport_register_session(tport->tpg->se_tpg, acl->se_node_acl, + __transport_register_session(&tport->tpg->se_tpg, &acl->se_node_acl, sess->se_sess, sess); return sess; } -- 1.5.6.5 -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
