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authorJakub Kicinski <jakub.kicinski@netronome.com>2019-02-14 13:40:44 -0800
committerDavid S. Miller <davem@davemloft.net>2019-02-17 15:27:38 -0800
commit76726ccb7f461c83040e7082cf95fe1dea2afd1f (patch)
treeb81d374cbf4754f6f448fe1c1b34ed15a472a711 /include/uapi
parent8e31c47424f7d03d0cc992fe6a9ebfdedf66a709 (diff)
devlink: add flash update command
Add devlink flash update command. Advanced NICs have firmware stored in flash and often cryptographically secured. Updating that flash is handled by management firmware. Ethtool has a flash update command which served us well, however, it has two shortcomings: - it takes rtnl_lock unnecessarily - really flash update has nothing to do with networking, so using a networking device as a handle is suboptimal, which leads us to the second one: - it requires a functioning netdev - in case device enters an error state and can't spawn a netdev (e.g. communication with the device fails) there is no netdev to use as a handle for flashing. Devlink already has the ability to report the firmware versions, now with the ability to update the firmware/flash we will be able to recover devices in bad state. To enable updates of sub-components of the FW allow passing component name. This name should correspond to one of the versions reported in devlink info. v1: - replace target id with component name (Jiri). Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/uapi')
-rw-r--r--include/uapi/linux/devlink.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/uapi/linux/devlink.h b/include/uapi/linux/devlink.h
index 72d9f7c89190..53de8802a000 100644
--- a/include/uapi/linux/devlink.h
+++ b/include/uapi/linux/devlink.h
@@ -103,6 +103,8 @@ enum devlink_command {
DEVLINK_CMD_HEALTH_REPORTER_DUMP_GET,
DEVLINK_CMD_HEALTH_REPORTER_DUMP_CLEAR,
+ DEVLINK_CMD_FLASH_UPDATE,
+
/* add new commands above here */
__DEVLINK_CMD_MAX,
DEVLINK_CMD_MAX = __DEVLINK_CMD_MAX - 1
@@ -326,6 +328,10 @@ enum devlink_attr {
DEVLINK_ATTR_HEALTH_REPORTER_DUMP_TS, /* u64 */
DEVLINK_ATTR_HEALTH_REPORTER_GRACEFUL_PERIOD, /* u64 */
DEVLINK_ATTR_HEALTH_REPORTER_AUTO_RECOVER, /* u8 */
+
+ DEVLINK_ATTR_FLASH_UPDATE_FILE_NAME, /* string */
+ DEVLINK_ATTR_FLASH_UPDATE_COMPONENT, /* string */
+
/* add new attributes above here, update the policy in devlink.c */
__DEVLINK_ATTR_MAX,