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authorDavid Bond <dbond@suse.com>2016-03-24 04:49:26 +0300
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2016-05-16 18:14:29 +0300
commitb3c8eb50383178f3a4dcf1dc867001156da6473d (patch)
tree10a3cc85d4bb4dc77f02aa72e967f7d37cb90ff2 /include/linux/iscsi_boot_sysfs.h
parent9a99425f0736a416442525ac7b15903173888b86 (diff)
downloadlinux-b3c8eb50383178f3a4dcf1dc867001156da6473d.tar.xz
ibft: Expose iBFT acpi header via sysfs
Some ethernet adapter vendors are supplying products which support optional (payed license) features. On some adapters this includes a hardware iscsi initiator. The same adapters in a normal (no extra licenses) mode of operation can be used as a software iscsi initiator. In addition, software iscsi boot initiators are becoming a standard part of many vendors uefi implementations. This is creating difficulties during early boot/install determining the proper configuration method for these adapters when they are used as a boot device. The attached patch creates sysfs entries to expose information from the acpi header of the ibft table. This information allows for a method to easily determining if an ibft table was created by a ethernet card's firmware or the system uefi/bios. In the case of a hardware initiator this information in combination with the pci vendor and device id can be used to ascertain any vendor specific behaviors that need to be accommodated. Reviewed-by: Lee Duncan <lduncan@suse.com> Signed-off-by: David Bond <dbond@suse.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'include/linux/iscsi_boot_sysfs.h')
-rw-r--r--include/linux/iscsi_boot_sysfs.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/iscsi_boot_sysfs.h b/include/linux/iscsi_boot_sysfs.h
index 548d55395488..10923d730486 100644
--- a/include/linux/iscsi_boot_sysfs.h
+++ b/include/linux/iscsi_boot_sysfs.h
@@ -64,6 +64,12 @@ enum iscsi_boot_initiator_properties_enum {
ISCSI_BOOT_INI_END_MARKER,
};
+enum iscsi_boot_acpitbl_properties_enum {
+ ISCSI_BOOT_ACPITBL_SIGNATURE,
+ ISCSI_BOOT_ACPITBL_OEM_ID,
+ ISCSI_BOOT_ACPITBL_OEM_TABLE_ID,
+};
+
struct attribute_group;
struct iscsi_boot_kobj {
@@ -127,6 +133,13 @@ iscsi_boot_create_target(struct iscsi_boot_kset *boot_kset, int index,
umode_t (*is_visible) (void *data, int type),
void (*release) (void *data));
+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));
+
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);