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==================== nfp: improve signal handing on FW waits and flower control message processing The first part of this set aims to improve handling of interrupted waits. Patch 1 makes waiting for management FW responses uninterruptible while patch 2 adds a message when signal arrives while waiting for an NFP mutex. We can't interrupt execution of FW commands so uninterruptible sleep seems reasonable there. Exiting a wait for a mutex should be clean and have no side affects so we are allowing to abort it. Note that both waits have rather large timeouts (tens of seconds). Patches 3 and 4 improve flower offload operation under heavy load. Currently there is no cap on the number of queued FW notifications. Some of the notifications have to be processed from a workqueue which may lead to very large number of messages getting queued if workqueue never gets a chance to run. Pieter puts a limit on number of queued messages, tries to drop some messages we ignore without queuing and process more important messages first. ==================== Signed-off-by: David S. Miller <davem@davemloft.net> processing'
Linux kernel
============
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