net: mscc: ocelot: use bulk reads for stats

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Create and utilize bulk regmap reads instead of single access for gathering
stats. The background reading of statistics happens frequently, and over
a few contiguous memory regions.

High speed PCIe buses and MMIO access will probably see negligible
performance increase. Lower speed buses like SPI and I2C could see
significant performance increase, since the bus configuration and register
access times account for a large percentage of data transfer time.

Signed-off-by: Colin Foster <colin.foster@in-advantage.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Colin Foster 2022-02-13 11:12:54 -08:00 • committed by David S. Miller

parent 40f3a5c815

commit d87b1c08f3

2 changed files with 85 additions and 15 deletions

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92

drivers/net/ethernet/mscc/ocelot.c

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8

include/soc/mscc/ocelot.h

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