diff options
Diffstat (limited to 'drivers/scsi/iscsi_boot_sysfs.c')
| -rw-r--r-- | drivers/scsi/iscsi_boot_sysfs.c | 80 |
1 files changed, 70 insertions, 10 deletions
diff --git a/drivers/scsi/iscsi_boot_sysfs.c b/drivers/scsi/iscsi_boot_sysfs.c index 14c1c8f6a95e..a64abe38db2d 100644 --- a/drivers/scsi/iscsi_boot_sysfs.c +++ b/drivers/scsi/iscsi_boot_sysfs.c @@ -1,17 +1,9 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Export the iSCSI boot info to userland via sysfs. * * Copyright (C) 2010 Red Hat, Inc. All rights reserved. * Copyright (C) 2010 Mike Christie - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License v2.0 as published by - * the Free Software Foundation - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/module.h> @@ -166,6 +158,7 @@ static struct attribute_group iscsi_boot_target_attr_group = { iscsi_boot_rd_attr(eth_index, index, ISCSI_BOOT_ETH_INDEX); iscsi_boot_rd_attr(eth_flags, flags, ISCSI_BOOT_ETH_FLAGS); iscsi_boot_rd_attr(eth_ip, ip-addr, ISCSI_BOOT_ETH_IP_ADDR); +iscsi_boot_rd_attr(eth_prefix, prefix-len, ISCSI_BOOT_ETH_PREFIX_LEN); iscsi_boot_rd_attr(eth_subnet, subnet-mask, ISCSI_BOOT_ETH_SUBNET_MASK); iscsi_boot_rd_attr(eth_origin, origin, ISCSI_BOOT_ETH_ORIGIN); iscsi_boot_rd_attr(eth_gateway, gateway, ISCSI_BOOT_ETH_GATEWAY); @@ -181,6 +174,7 @@ static struct attribute *ethernet_attrs[] = { &iscsi_boot_attr_eth_index.attr, &iscsi_boot_attr_eth_flags.attr, &iscsi_boot_attr_eth_ip.attr, + &iscsi_boot_attr_eth_prefix.attr, &iscsi_boot_attr_eth_subnet.attr, &iscsi_boot_attr_eth_origin.attr, &iscsi_boot_attr_eth_gateway.attr, @@ -208,6 +202,9 @@ static umode_t iscsi_boot_eth_attr_is_visible(struct kobject *kobj, else if (attr == &iscsi_boot_attr_eth_ip.attr) return boot_kobj->is_visible(boot_kobj->data, ISCSI_BOOT_ETH_IP_ADDR); + else if (attr == &iscsi_boot_attr_eth_prefix.attr) + return boot_kobj->is_visible(boot_kobj->data, + ISCSI_BOOT_ETH_PREFIX_LEN); else if (attr == &iscsi_boot_attr_eth_subnet.attr) return boot_kobj->is_visible(boot_kobj->data, ISCSI_BOOT_ETH_SUBNET_MASK); @@ -301,6 +298,42 @@ static struct attribute_group iscsi_boot_initiator_attr_group = { .is_visible = iscsi_boot_ini_attr_is_visible, }; +/* iBFT ACPI Table attributes */ +iscsi_boot_rd_attr(acpitbl_signature, signature, ISCSI_BOOT_ACPITBL_SIGNATURE); +iscsi_boot_rd_attr(acpitbl_oem_id, oem_id, ISCSI_BOOT_ACPITBL_OEM_ID); +iscsi_boot_rd_attr(acpitbl_oem_table_id, oem_table_id, + ISCSI_BOOT_ACPITBL_OEM_TABLE_ID); + +static struct attribute *acpitbl_attrs[] = { + &iscsi_boot_attr_acpitbl_signature.attr, + &iscsi_boot_attr_acpitbl_oem_id.attr, + &iscsi_boot_attr_acpitbl_oem_table_id.attr, + NULL +}; + +static umode_t iscsi_boot_acpitbl_attr_is_visible(struct kobject *kobj, + struct attribute *attr, int i) +{ + struct iscsi_boot_kobj *boot_kobj = + container_of(kobj, struct iscsi_boot_kobj, kobj); + + if (attr == &iscsi_boot_attr_acpitbl_signature.attr) + return boot_kobj->is_visible(boot_kobj->data, + ISCSI_BOOT_ACPITBL_SIGNATURE); + if (attr == &iscsi_boot_attr_acpitbl_oem_id.attr) + return boot_kobj->is_visible(boot_kobj->data, + ISCSI_BOOT_ACPITBL_OEM_ID); + if (attr == &iscsi_boot_attr_acpitbl_oem_table_id.attr) + return boot_kobj->is_visible(boot_kobj->data, + ISCSI_BOOT_ACPITBL_OEM_TABLE_ID); + return 0; +} + +static struct attribute_group iscsi_boot_acpitbl_attr_group = { + .attrs = acpitbl_attrs, + .is_visible = iscsi_boot_acpitbl_attr_is_visible, +}; + static struct iscsi_boot_kobj * iscsi_boot_create_kobj(struct iscsi_boot_kset *boot_kset, struct attribute_group *attr_group, @@ -319,7 +352,7 @@ iscsi_boot_create_kobj(struct iscsi_boot_kset *boot_kset, boot_kobj->kobj.kset = boot_kset->kset; if (kobject_init_and_add(&boot_kobj->kobj, &iscsi_boot_ktype, NULL, name, index)) { - kfree(boot_kobj); + kobject_put(&boot_kobj->kobj); return NULL; } boot_kobj->data = data; @@ -431,6 +464,32 @@ iscsi_boot_create_ethernet(struct iscsi_boot_kset *boot_kset, int index, EXPORT_SYMBOL_GPL(iscsi_boot_create_ethernet); /** + * iscsi_boot_create_acpitbl() - create boot acpi table sysfs dir + * @boot_kset: boot kset + * @index: not used + * @data: driver specific data + * @show: attr show function + * @is_visible: attr visibility function + * @release: release function + * + * Note: The boot sysfs lib will free the data passed in for the caller + * when all refs to the acpitbl kobject have been released. + */ +struct iscsi_boot_kobj * +iscsi_boot_create_acpitbl(struct iscsi_boot_kset *boot_kset, int index, + void *data, + ssize_t (*show)(void *data, int type, char *buf), + umode_t (*is_visible)(void *data, int type), + void (*release)(void *data)) +{ + return iscsi_boot_create_kobj(boot_kset, + &iscsi_boot_acpitbl_attr_group, + "acpi_header", index, data, show, + is_visible, release); +} +EXPORT_SYMBOL_GPL(iscsi_boot_create_acpitbl); + +/** * iscsi_boot_create_kset() - creates root sysfs tree * @set_name: name of root dir */ @@ -490,5 +549,6 @@ void iscsi_boot_destroy_kset(struct iscsi_boot_kset *boot_kset) iscsi_boot_remove_kobj(boot_kobj); kset_unregister(boot_kset->kset); + kfree(boot_kset); } EXPORT_SYMBOL_GPL(iscsi_boot_destroy_kset); |