Messages in this thread | | | From | Alex Elder <> | Subject | [PATCH net-next 0/4] net: ipa: IPA v4.5 aggregation and Qtime | Date | Mon, 30 Nov 2020 17:37:08 -0600 |
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This series updates some IPA register definitions that change in substantive ways for IPA v4.5.
One register defines parameters used by an endpoint to aggregate multiple packets into a buffer. The size and position of most fields in that register have changed with this new hardware version, and consequently the function that programs it needs to be done a bit differently. The first patch takes care of this.
Second, IPA v4.5 introduces a unified time keeping component to be used in several places by the IPA hardware. A main clock divider provides a fundamental tick rate, and several timestamped features now define their granularity based on that. There is also a set of "pulse generators" derived from the main tick, and these are used to implement timers used for aggregation and head-of-line block avoidance. The second patch adds IPA register updates to support Qtime along with its configuration, and the last two patches configure the timers that use it.
-Alex
Alex Elder (4): net: ipa: update IPA aggregation registers for IPA v4.5 net: ipa: set up IPA v4.5 Qtime configuration net: ipa: use Qtime for IPA v4.5 aggregation time limit net: ipa: use Qtime for IPA v4.5 head-of-line time limit
drivers/net/ipa/ipa_endpoint.c | 174 +++++++++++++++++++++++++-------- drivers/net/ipa/ipa_main.c | 67 ++++++++++++- drivers/net/ipa/ipa_reg.h | 68 +++++++++++-- 3 files changed, 260 insertions(+), 49 deletions(-)
-- 2.20.1
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