From ba4ee30c6c797de148dcc7254cf6d531aba71d9b Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Mon, 12 Apr 2010 18:06:17 +0000 Subject: ibft: separate ibft parsing from sysfs interface Not all iscsi drivers support ibft. For drivers like be2iscsi that do not but are bootable through a vendor firmware specific format/process this patch moves the sysfs interface from the ibft code to a lib module. This then allows userspace tools to search for iscsi boot info in a common place and in a common format. ibft iscsi boot info is exported in the same place as it was before: /sys/firmware/ibft. vendor/fw boot info gets export in /sys/firmware/iscsi_bootX, where X is the scsi host number of the HBA. Underneath these parent dirs, the target, ethernet, and initiator dirs are the same as they were before. Signed-off-by: Mike Christie Signed-off-by: Konrad Rzeszutek Wilk Signed-off-by: Peter Jones --- include/linux/iscsi_boot_sysfs.h | 123 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 123 insertions(+) create mode 100644 include/linux/iscsi_boot_sysfs.h (limited to 'include/linux/iscsi_boot_sysfs.h') diff --git a/include/linux/iscsi_boot_sysfs.h b/include/linux/iscsi_boot_sysfs.h new file mode 100644 index 000000000000..f1e6c184f14f --- /dev/null +++ b/include/linux/iscsi_boot_sysfs.h @@ -0,0 +1,123 @@ +/* + * 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. + */ +#ifndef _ISCSI_BOOT_SYSFS_ +#define _ISCSI_BOOT_SYSFS_ + +/* + * The text attributes names for each of the kobjects. +*/ +enum iscsi_boot_eth_properties_enum { + ISCSI_BOOT_ETH_INDEX, + ISCSI_BOOT_ETH_FLAGS, + ISCSI_BOOT_ETH_IP_ADDR, + ISCSI_BOOT_ETH_SUBNET_MASK, + ISCSI_BOOT_ETH_ORIGIN, + ISCSI_BOOT_ETH_GATEWAY, + ISCSI_BOOT_ETH_PRIMARY_DNS, + ISCSI_BOOT_ETH_SECONDARY_DNS, + ISCSI_BOOT_ETH_DHCP, + ISCSI_BOOT_ETH_VLAN, + ISCSI_BOOT_ETH_MAC, + /* eth_pci_bdf - this is replaced by link to the device itself. */ + ISCSI_BOOT_ETH_HOSTNAME, + ISCSI_BOOT_ETH_END_MARKER, +}; + +enum iscsi_boot_tgt_properties_enum { + ISCSI_BOOT_TGT_INDEX, + ISCSI_BOOT_TGT_FLAGS, + ISCSI_BOOT_TGT_IP_ADDR, + ISCSI_BOOT_TGT_PORT, + ISCSI_BOOT_TGT_LUN, + ISCSI_BOOT_TGT_CHAP_TYPE, + ISCSI_BOOT_TGT_NIC_ASSOC, + ISCSI_BOOT_TGT_NAME, + ISCSI_BOOT_TGT_CHAP_NAME, + ISCSI_BOOT_TGT_CHAP_SECRET, + ISCSI_BOOT_TGT_REV_CHAP_NAME, + ISCSI_BOOT_TGT_REV_CHAP_SECRET, + ISCSI_BOOT_TGT_END_MARKER, +}; + +enum iscsi_boot_initiator_properties_enum { + ISCSI_BOOT_INI_INDEX, + ISCSI_BOOT_INI_FLAGS, + ISCSI_BOOT_INI_ISNS_SERVER, + ISCSI_BOOT_INI_SLP_SERVER, + ISCSI_BOOT_INI_PRI_RADIUS_SERVER, + ISCSI_BOOT_INI_SEC_RADIUS_SERVER, + ISCSI_BOOT_INI_INITIATOR_NAME, + ISCSI_BOOT_INI_END_MARKER, +}; + +struct attribute_group; + +struct iscsi_boot_kobj { + struct kobject kobj; + struct attribute_group *attr_group; + struct list_head list; + + /* + * Pointer to store driver specific info. If set this will + * be freed for the LLD when the kobj release function is called. + */ + void *data; + /* + * Driver specific show function. + * + * The enum of the type. This can be any value of the above + * properties. + */ + ssize_t (*show) (void *data, int type, char *buf); + + /* + * Drivers specific visibility function. + * The function should return if they the attr should be readable + * writable or should not be shown. + * + * The enum of the type. This can be any value of the above + * properties. + */ + mode_t (*is_visible) (void *data, int type); +}; + +struct iscsi_boot_kset { + struct list_head kobj_list; + struct kset *kset; +}; + +struct iscsi_boot_kobj * +iscsi_boot_create_initiator(struct iscsi_boot_kset *boot_kset, int index, + void *data, + ssize_t (*show) (void *data, int type, char *buf), + mode_t (*is_visible) (void *data, int type)); + +struct iscsi_boot_kobj * +iscsi_boot_create_ethernet(struct iscsi_boot_kset *boot_kset, int index, + void *data, + ssize_t (*show) (void *data, int type, char *buf), + mode_t (*is_visible) (void *data, int type)); +struct iscsi_boot_kobj * +iscsi_boot_create_target(struct iscsi_boot_kset *boot_kset, int index, + void *data, + ssize_t (*show) (void *data, int type, char *buf), + mode_t (*is_visible) (void *data, int type)); + +struct iscsi_boot_kset *iscsi_boot_create_kset(const char *set_name); +struct iscsi_boot_kset *iscsi_boot_create_host_kset(unsigned int hostno); +void iscsi_boot_destroy_kset(struct iscsi_boot_kset *boot_kset); + +#endif -- cgit v1.2.1