summaryrefslogtreecommitdiff
path: root/include/uapi/linux/ethtool_netlink.h
diff options
context:
space:
mode:
authorVladimir Oltean <vladimir.oltean@nxp.com>2023-01-19 15:26:56 +0300
committerDavid S. Miller <davem@davemloft.net>2023-01-23 15:44:18 +0300
commit04692c9020b76939715d6f2b4ff84d832246e0fc (patch)
treed21fa306edcdbe9e7d31d8c9cb4f8e53d84a8e77 /include/uapi/linux/ethtool_netlink.h
parent3700000479f000c1254a53182b4b2c5b184ff171 (diff)
downloadlinux-04692c9020b76939715d6f2b4ff84d832246e0fc.tar.xz
net: ethtool: netlink: retrieve stats from multiple sources (eMAC, pMAC)
IEEE 802.3-2018 clause 99 defines a MAC Merge sublayer which contains an Express MAC and a Preemptible MAC. Both MACs are hidden to higher and lower layers and visible as a single MAC (packet classification to eMAC or pMAC on TX is done based on priority; classification on RX is done based on SFD). For devices which support a MAC Merge sublayer, it is desirable to retrieve individual packet counters from the eMAC and the pMAC, as well as aggregate statistics (their sum). Introduce a new ETHTOOL_A_STATS_SRC attribute which is part of the policy of ETHTOOL_MSG_STATS_GET and, and an ETHTOOL_A_PAUSE_STATS_SRC which is part of the policy of ETHTOOL_MSG_PAUSE_GET (accepted when ETHTOOL_FLAG_STATS is set in the common ethtool header). Both of these take values from enum ethtool_mac_stats_src, defaulting to "aggregate" in the absence of the attribute. Existing drivers do not need to pay attention to this enum which was added to all driver-facing structures, just the ones which report the MAC merge layer as supported. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/uapi/linux/ethtool_netlink.h')
-rw-r--r--include/uapi/linux/ethtool_netlink.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/uapi/linux/ethtool_netlink.h b/include/uapi/linux/ethtool_netlink.h
index 58af390823b0..ffb073c0dbb4 100644
--- a/include/uapi/linux/ethtool_netlink.h
+++ b/include/uapi/linux/ethtool_netlink.h
@@ -428,6 +428,7 @@ enum {
ETHTOOL_A_PAUSE_RX, /* u8 */
ETHTOOL_A_PAUSE_TX, /* u8 */
ETHTOOL_A_PAUSE_STATS, /* nest - _PAUSE_STAT_* */
+ ETHTOOL_A_PAUSE_STATS_SRC, /* u32 */
/* add new constants above here */
__ETHTOOL_A_PAUSE_CNT,
@@ -744,6 +745,8 @@ enum {
ETHTOOL_A_STATS_GRP, /* nest - _A_STATS_GRP_* */
+ ETHTOOL_A_STATS_SRC, /* u32 */
+
/* add new constants above here */
__ETHTOOL_A_STATS_CNT,
ETHTOOL_A_STATS_MAX = (__ETHTOOL_A_STATS_CNT - 1)