staging/rdma/hfi1: Thread the receive interrupt.

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When under heavy load, the receive interrupt handler can run too long with IRQs
disabled.  Add a mixed-mode threading scheme.  Initially process packets in the
handler for quick responses (latency).  If there are too many packets to
process move to a thread to continue (bandwidth).

Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Dean Luick 2015-10-26 10:28:44 -04:00 • committed by Greg Kroah-Hartman

parent b77d713a31

commit f4f30031c3

4 changed files with 154 additions and 46 deletions

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104

drivers/staging/rdma/hfi1/chip.c

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72

drivers/staging/rdma/hfi1/driver.c

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20

drivers/staging/rdma/hfi1/hfi.h

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4

drivers/staging/rdma/hfi1/sdma.c

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