Bluetooth: fix HCI command / data deadlock #52536
Merged
+174
−68
Commits on Dec 14, 2022
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Bluetooth: host: make HCI fragmentation async
Make the ACL fragmentation asynchronous, freeing the TX thread for sending commands when the ACL buffers are full. Signed-off-by: Jonathan Rico <[email protected]>
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Bluetooth: host: poll on CTLR buffers instead of host TX queue
When there are no buffers, it doesn't make sense to repeatedly try to send the host TX queue. Signed-off-by: Jonathan Rico <[email protected]>
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Bluetooth: host: copy fragment data at the last minute
Only copy the data from the 'parent' buf into the segment buf if we successfully acquired the HCI semaphore (ie there are available controller buffers). This way we avoid pulling and pushing back the data in the case where there aren't any controller buffers available. Signed-off-by: Jonathan Rico <[email protected]>
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Bluetooth: host: update l2cap stress test
Do these things: - use the proper macros for reserving the SDU header - make every L2CAP PDU fragment into 3 ACL packets - set tx data and verify rx matches the pattern - measure segment pool usage Signed-off-by: Jonathan Rico <[email protected]>
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