Lines Matching full:subsys
122 static void nvme_put_subsystem(struct nvme_subsystem *subsys);
618 ida_free(&head->subsys->ns_ida, head->instance); in nvme_free_ns_head()
620 nvme_put_subsystem(head->subsys); in nvme_free_ns_head()
1105 mutex_lock(&ctrl->subsys->lock); in nvme_passthru_start()
1106 nvme_mpath_start_freeze(ctrl->subsys); in nvme_passthru_start()
1107 nvme_mpath_wait_freeze(ctrl->subsys); in nvme_passthru_start()
1119 nvme_mpath_unfreeze(ctrl->subsys); in nvme_passthru_end()
1120 mutex_unlock(&ctrl->subsys->lock); in nvme_passthru_end()
1869 atomic_bs = (1 + ns->ctrl->subsys->awupf) * bs; in nvme_update_disk_info()
2686 static void nvme_init_subnqn(struct nvme_subsystem *subsys, struct nvme_ctrl *ctrl, in nvme_init_subnqn() argument
2695 strscpy(subsys->subnqn, id->subnqn, NVMF_NQN_SIZE); in nvme_init_subnqn()
2708 off = snprintf(subsys->subnqn, NVMF_NQN_SIZE, in nvme_init_subnqn()
2711 memcpy(subsys->subnqn + off, id->sn, sizeof(id->sn)); in nvme_init_subnqn()
2713 memcpy(subsys->subnqn + off, id->mn, sizeof(id->mn)); in nvme_init_subnqn()
2715 memset(subsys->subnqn + off, 0, sizeof(subsys->subnqn) - off); in nvme_init_subnqn()
2720 struct nvme_subsystem *subsys = in nvme_release_subsystem() local
2723 if (subsys->instance >= 0) in nvme_release_subsystem()
2724 ida_free(&nvme_instance_ida, subsys->instance); in nvme_release_subsystem()
2725 kfree(subsys); in nvme_release_subsystem()
2730 struct nvme_subsystem *subsys = in nvme_destroy_subsystem() local
2734 list_del(&subsys->entry); in nvme_destroy_subsystem()
2737 ida_destroy(&subsys->ns_ida); in nvme_destroy_subsystem()
2738 device_del(&subsys->dev); in nvme_destroy_subsystem()
2739 put_device(&subsys->dev); in nvme_destroy_subsystem()
2742 static void nvme_put_subsystem(struct nvme_subsystem *subsys) in nvme_put_subsystem() argument
2744 kref_put(&subsys->ref, nvme_destroy_subsystem); in nvme_put_subsystem()
2749 struct nvme_subsystem *subsys; in __nvme_find_get_subsystem() local
2764 list_for_each_entry(subsys, &nvme_subsystems, entry) { in __nvme_find_get_subsystem()
2765 if (strcmp(subsys->subnqn, subsysnqn)) in __nvme_find_get_subsystem()
2767 if (!kref_get_unless_zero(&subsys->ref)) in __nvme_find_get_subsystem()
2769 return subsys; in __nvme_find_get_subsystem()
2783 struct nvme_subsystem *subsys = in nvme_subsys_show_nqn() local
2786 return sysfs_emit(buf, "%s\n", subsys->subnqn); in nvme_subsys_show_nqn()
2794 struct nvme_subsystem *subsys = in nvme_subsys_show_type() local
2797 switch (subsys->subtype) { in nvme_subsys_show_type()
2812 struct nvme_subsystem *subsys = \
2815 (int)sizeof(subsys->field), subsys->field); \
2849 static bool nvme_validate_cntlid(struct nvme_subsystem *subsys, in nvme_validate_cntlid() argument
2856 list_for_each_entry(tmp, &subsys->ctrls, subsys_entry) { in nvme_validate_cntlid()
2862 "Duplicate cntlid %u with %s, subsys %s, rejecting\n", in nvme_validate_cntlid()
2864 subsys->subnqn); in nvme_validate_cntlid()
2882 struct nvme_subsystem *subsys, *found; in nvme_init_subsystem() local
2885 subsys = kzalloc(sizeof(*subsys), GFP_KERNEL); in nvme_init_subsystem()
2886 if (!subsys) in nvme_init_subsystem()
2889 subsys->instance = -1; in nvme_init_subsystem()
2890 mutex_init(&subsys->lock); in nvme_init_subsystem()
2891 kref_init(&subsys->ref); in nvme_init_subsystem()
2892 INIT_LIST_HEAD(&subsys->ctrls); in nvme_init_subsystem()
2893 INIT_LIST_HEAD(&subsys->nsheads); in nvme_init_subsystem()
2894 nvme_init_subnqn(subsys, ctrl, id); in nvme_init_subsystem()
2895 memcpy(subsys->serial, id->sn, sizeof(subsys->serial)); in nvme_init_subsystem()
2896 memcpy(subsys->model, id->mn, sizeof(subsys->model)); in nvme_init_subsystem()
2897 subsys->vendor_id = le16_to_cpu(id->vid); in nvme_init_subsystem()
2898 subsys->cmic = id->cmic; in nvme_init_subsystem()
2902 !strcmp(subsys->subnqn, NVME_DISC_SUBSYS_NAME)) in nvme_init_subsystem()
2903 subsys->subtype = NVME_NQN_DISC; in nvme_init_subsystem()
2905 subsys->subtype = NVME_NQN_NVME; in nvme_init_subsystem()
2907 if (nvme_discovery_ctrl(ctrl) && subsys->subtype != NVME_NQN_DISC) { in nvme_init_subsystem()
2910 subsys->subnqn); in nvme_init_subsystem()
2911 kfree(subsys); in nvme_init_subsystem()
2914 subsys->awupf = le16_to_cpu(id->awupf); in nvme_init_subsystem()
2915 nvme_mpath_default_iopolicy(subsys); in nvme_init_subsystem()
2917 subsys->dev.class = nvme_subsys_class; in nvme_init_subsystem()
2918 subsys->dev.release = nvme_release_subsystem; in nvme_init_subsystem()
2919 subsys->dev.groups = nvme_subsys_attrs_groups; in nvme_init_subsystem()
2920 dev_set_name(&subsys->dev, "nvme-subsys%d", ctrl->instance); in nvme_init_subsystem()
2921 device_initialize(&subsys->dev); in nvme_init_subsystem()
2924 found = __nvme_find_get_subsystem(subsys->subnqn); in nvme_init_subsystem()
2926 put_device(&subsys->dev); in nvme_init_subsystem()
2927 subsys = found; in nvme_init_subsystem()
2929 if (!nvme_validate_cntlid(subsys, ctrl, id)) { in nvme_init_subsystem()
2934 ret = device_add(&subsys->dev); in nvme_init_subsystem()
2938 put_device(&subsys->dev); in nvme_init_subsystem()
2941 ida_init(&subsys->ns_ida); in nvme_init_subsystem()
2942 list_add_tail(&subsys->entry, &nvme_subsystems); in nvme_init_subsystem()
2945 ret = sysfs_create_link(&subsys->dev.kobj, &ctrl->device->kobj, in nvme_init_subsystem()
2954 subsys->instance = ctrl->instance; in nvme_init_subsystem()
2955 ctrl->subsys = subsys; in nvme_init_subsystem()
2956 list_add_tail(&ctrl->subsys_entry, &subsys->ctrls); in nvme_init_subsystem()
2961 nvme_put_subsystem(subsys); in nvme_init_subsystem()
3115 memcpy(ctrl->subsys->firmware_rev, id->fr, in nvme_init_identify()
3116 sizeof(ctrl->subsys->firmware_rev)); in nvme_init_identify()
3360 struct nvme_subsystem *subsys = head->subsys; in wwid_show() local
3361 int serial_len = sizeof(subsys->serial); in wwid_show()
3362 int model_len = sizeof(subsys->model); in wwid_show()
3373 while (serial_len > 0 && (subsys->serial[serial_len - 1] == ' ' || in wwid_show()
3374 subsys->serial[serial_len - 1] == '\0')) in wwid_show()
3376 while (model_len > 0 && (subsys->model[model_len - 1] == ' ' || in wwid_show()
3377 subsys->model[model_len - 1] == '\0')) in wwid_show()
3380 return sysfs_emit(buf, "nvme.%04x-%*phN-%*phN-%08x\n", subsys->vendor_id, in wwid_show()
3381 serial_len, subsys->serial, model_len, subsys->model, in wwid_show()
3483 (int)sizeof(ctrl->subsys->field), ctrl->subsys->field); \
3558 return sysfs_emit(buf, "%s\n", ctrl->subsys->subnqn); in nvme_sysfs_show_subsysnqn()
3893 lockdep_assert_held(&ctrl->subsys->lock); in nvme_find_ns_head()
3895 list_for_each_entry(h, &ctrl->subsys->nsheads, entry) { in nvme_find_ns_head()
3910 static int nvme_subsys_check_duplicate_ids(struct nvme_subsystem *subsys, in nvme_subsys_check_duplicate_ids() argument
3918 lockdep_assert_held(&subsys->lock); in nvme_subsys_check_duplicate_ids()
3920 list_for_each_entry(h, &subsys->nsheads, entry) { in nvme_subsys_check_duplicate_ids()
4015 ret = ida_alloc_min(&ctrl->subsys->ns_ida, 1, GFP_KERNEL); in nvme_alloc_ns_head()
4023 head->subsys = ctrl->subsys; in nvme_alloc_ns_head()
4040 list_add_tail(&head->entry, &ctrl->subsys->nsheads); in nvme_alloc_ns_head()
4042 kref_get(&ctrl->subsys->ref); in nvme_alloc_ns_head()
4048 ida_free(&ctrl->subsys->ns_ida, head->instance); in nvme_alloc_ns_head()
4089 ret = nvme_global_check_duplicate_ids(ctrl->subsys, &info->ids); in nvme_init_ns_head()
4097 mutex_lock(&ctrl->subsys->lock); in nvme_init_ns_head()
4100 ret = nvme_subsys_check_duplicate_ids(ctrl->subsys, &info->ids); in nvme_init_ns_head()
4138 mutex_unlock(&ctrl->subsys->lock); in nvme_init_ns_head()
4144 mutex_unlock(&ctrl->subsys->lock); in nvme_init_ns_head()
4229 sprintf(disk->disk_name, "nvme%dc%dn%d", ctrl->subsys->instance, in nvme_alloc_ns()
4233 sprintf(disk->disk_name, "nvme%dn%d", ctrl->subsys->instance, in nvme_alloc_ns()
4265 mutex_lock(&ctrl->subsys->lock); in nvme_alloc_ns()
4269 mutex_unlock(&ctrl->subsys->lock); in nvme_alloc_ns()
4298 mutex_lock(&ns->ctrl->subsys->lock); in nvme_ns_remove()
4304 mutex_unlock(&ns->ctrl->subsys->lock); in nvme_ns_remove()
4981 struct nvme_subsystem *subsys = ctrl->subsys; in nvme_free_ctrl() local
4983 if (!subsys || ctrl->instance != subsys->instance) in nvme_free_ctrl()
4992 if (subsys) { in nvme_free_ctrl()
4995 sysfs_remove_link(&subsys->dev.kobj, dev_name(ctrl->device)); in nvme_free_ctrl()
5001 if (subsys) in nvme_free_ctrl()
5002 nvme_put_subsystem(subsys); in nvme_free_ctrl()