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authorMichal Kubecek <mkubecek@suse.cz>2020-03-12 23:08:43 +0300
committerDavid S. Miller <davem@davemloft.net>2020-03-13 01:32:33 +0300
commite19c591eafad4d723a2eed385e253eca0506cc25 (patch)
tree1450733e460f65eb9eb6a0b88a1dd96bc061fcc2 /include
parent0c84979c951a85fcb5c77ac2480fd476e283a07c (diff)
downloadlinux-e19c591eafad4d723a2eed385e253eca0506cc25.tar.xz
ethtool: set device channel counts with CHANNELS_SET request
Implement CHANNELS_SET netlink request to set channel counts of a network device. These are traditionally set with ETHTOOL_SCHANNELS ioctl request. Like the ioctl implementation, the generic ethtool code checks if supplied values do not exceed driver defined limits; if they do, first offending attribute is reported using extack. Checks preventing removing channels used for RX indirection table or zerocopy AF_XDP socket are also implemented. Move ethtool_get_max_rxfh_channel() helper into common.c so that it can be used by both ioctl and netlink code. v2: - fix netdev reference leak in error path (found by Jakub Kicinsky) Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Reviewed-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/uapi/linux/ethtool_netlink.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/ethtool_netlink.h b/include/uapi/linux/ethtool_netlink.h
index 2270eb115eca..f1384a8f3534 100644
--- a/include/uapi/linux/ethtool_netlink.h
+++ b/include/uapi/linux/ethtool_netlink.h
@@ -31,6 +31,7 @@ enum {
ETHTOOL_MSG_RINGS_GET,
ETHTOOL_MSG_RINGS_SET,
ETHTOOL_MSG_CHANNELS_GET,
+ ETHTOOL_MSG_CHANNELS_SET,
/* add new constants above here */
__ETHTOOL_MSG_USER_CNT,