mlxsw: spectrum_switchdev: Optimize SFN records processing

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Currently, only one SFN query is done from repetitive work at a time,
processing 64 entries. Another work iteration is scheduled in 100ms,
that means that the max rate of learned FDB entries is limited to 6400/s.
That is slow. Fix this by doing 2 optimizations:
1) Run 10 SFN queries at a time.
2) In case the SFN is not drained, schedule work with 0 delay to allow
   to continue processing rest of the records.

On a testing setup with 500K entries the time to process decreased
from 870secs to 10secs.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Tested-by: Alex Kushnarov <alexanderk@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

This commit is contained in:

Jiri Pirko 2020-02-26 09:39:17 +01:00 • committed by David S. Miller

parent c535f92032

commit 648e53cac7

2 changed files with 24 additions and 13 deletions

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2

drivers/net/ethernet/mellanox/mlxsw/reg.h

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35

drivers/net/ethernet/mellanox/mlxsw/spectrum_switchdev.c

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