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| author | Vladimir Oltean <vladimir.oltean@nxp.com> | 2022-09-08 18:48:13 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-09-09 11:59:12 +0200 |
| commit | e32036e1ae7bb71b64559313f9ea8790a0acaa51 (patch) | |
| tree | 938ca00afdd99818b8a1703579c6a9142f154842 /README | |
| parent | net: mscc: ocelot: exclude stats from bulk regions based on reg, not name (diff) | |
| download | linux-e32036e1ae7bb71b64559313f9ea8790a0acaa51.tar.xz linux-e32036e1ae7bb71b64559313f9ea8790a0acaa51.zip | |
net: mscc: ocelot: add support for all sorts of standardized counters present in DSA
DSA is integrated with the new standardized ethtool -S --groups option,
but the felix driver only exports unstructured statistics.
Reuse the array of 64-bit statistics collected by ocelot_check_stats_work(),
but just export select values from it.
Since ocelot_check_stats_work() runs periodically to avoid 32-bit
overflow, and the ethtool calling context is sleepable, we update the
64-bit stats one more time, to provide up-to-date values. The locking
scheme with a mutex followed by a spinlock is a bit hard to digest, so
we create and use a ocelot_port_stats_run() helper with a callback that
populates the ethool stats group the caller is interested in.
The exported stats are:
ethtool -S swp0 --groups eth-phy
ethtool -S swp0 --groups eth-mac
ethtool -S swp0 --groups eth-ctrl
ethtool -S swp0 --groups rmon
ethtool --include-statistics --show-pause swp0
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'README')
0 files changed, 0 insertions, 0 deletions