net: ipa: implement MAX_READS_BEATS QSB data

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Starting with IPA v4.0, a limit is placed on the number of bytes
outstanding in a transaction, to reduce latency.  The limit is
imposed only if this value is non-zero.

We don't use a non-zero value for SC7180, but newer versions of IPA
do.  Prepare for that by allowing a programmed value to be specified
in the platform configuration data.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Alex Elder 2021-03-20 10:57:04 -05:00 • committed by David S. Miller

parent 8a81efac94

commit b9aa0805ed

3 changed files with 11 additions and 2 deletions

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1

drivers/net/ipa/ipa_data-sc7180.c

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2

drivers/net/ipa/ipa_data.h

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10

drivers/net/ipa/ipa_main.c

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