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authorMike Christie <michaelc@cs.wisc.edu>2010-04-12 18:06:17 +0000
committerKonrad Rzeszutek Wilk <konrad@kernel.org>2010-05-11 13:02:38 -0400
commitba4ee30c6c797de148dcc7254cf6d531aba71d9b (patch)
tree8d482a3a1a819a6e36afcbf1fe964c70d6e95341 /include/linux
parent1303a35bfe153370cddb1b6e58e2287469e35f34 (diff)
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 <michaelc@cs.wisc.edu> Signed-off-by: Konrad Rzeszutek Wilk <konrad@kernel.org> Signed-off-by: Peter Jones <pjones@redhat.com>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/iscsi_boot_sysfs.h123
1 files changed, 123 insertions, 0 deletions
diff --git a/include/linux/iscsi_boot_sysfs.h b/include/linux/iscsi_boot_sysfs.h
new file mode 100644
index 00000000000..f1e6c184f14
--- /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