bnxt_en: Improve -ENOMEM logic in NAPI poll loop.

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If we cannot allocate RX buffers in the NAPI poll loop when processing
an RX event, the current code does not count that event towards the NAPI
budget.  This can cause us to potentially loop forever in NAPI if we
consistently cannot allocate new buffers.  Improve it by counting
-ENOMEM event as 1 towards the NAPI budget.

Cc: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Reported-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Michael Chan 2017-08-28 13:40:30 -04:00 • committed by David S. Miller

parent 27573a7d90

commit 903649e718

1 changed files with 7 additions and 0 deletions

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drivers/net/ethernet/broadcom/bnxt/bnxt.c

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