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drop_monitor: Allow user to start monitoring hardware drops

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Drop monitor has start and stop commands, but so far these were only
used to start and stop monitoring of software drops.

Now that drop monitor can also monitor hardware drops, we should allow
the user to control these as well.

Do that by adding SW and HW flags to these commands. If no flag is
specified, then only start / stop monitoring software drops. This is
done in order to maintain backward-compatibility with existing user
space applications.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel
2019-08-17 16:28:16 +03:00
committed by David S. Miller
parent d40e1deb93
commit 8e94c3bc92
2 changed files with 123 additions and 3 deletions
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2
include/uapi/linux/net_dropmon.h
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@@ -90,6 +90,8 @@ enum net_dm_attr {
NET_DM_ATTR_HW_ENTRIES, /* nested */
NET_DM_ATTR_HW_ENTRY, /* nested */
NET_DM_ATTR_HW_TRAP_COUNT, /* u32 */
NET_DM_ATTR_SW_DROPS, /* flag */
NET_DM_ATTR_HW_DROPS, /* flag */
__NET_DM_ATTR_MAX,
NET_DM_ATTR_MAX = __NET_DM_ATTR_MAX - 1