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author | Heiner Kallweit <hkallweit1@gmail.com> | 2018-10-18 19:56:01 +0200 |
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committer | David S. Miller <davem@davemloft.net> | 2018-10-18 20:33:29 +0200 |
commit | 6b839b6cf9eada30b086effb51e5d6076bafc761 (patch) | |
tree | ff03cc172c8ac189df65e1134bc6400a88907217 /Documentation/pps | |
parent | Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klasse... (diff) | |
download | linux-6b839b6cf9eada30b086effb51e5d6076bafc761.tar.xz linux-6b839b6cf9eada30b086effb51e5d6076bafc761.zip |
r8169: fix NAPI handling under high load
rtl_rx() and rtl_tx() are called only if the respective bits are set
in the interrupt status register. Under high load NAPI may not be
able to process all data (work_done == budget) and it will schedule
subsequent calls to the poll callback.
rtl_ack_events() however resets the bits in the interrupt status
register, therefore subsequent calls to rtl8169_poll() won't call
rtl_rx() and rtl_tx() - chip interrupts are still disabled.
Fix this by calling rtl_rx() and rtl_tx() independent of the bits
set in the interrupt status register. Both functions will detect
if there's nothing to do for them.
Fixes: da78dbff2e05 ("r8169: remove work from irq handler.")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/pps')
0 files changed, 0 insertions, 0 deletions