bnxt_en: Add new NAPI poll function for 57500 chips.

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Add a new poll function that polls for NQ events.  If the NQ event is
a CQ notification, we locate the CP ring from the cq_handle and call
__bnxt_poll_work() to handle RX/TX events on the CP ring.

Add a new has_more_work field in struct bnxt_cp_ring_info to indicate
budget has been reached.  __bnxt_poll_cqs_done() is called to update or
ARM the CP rings if budget has not been reached or not.  If budget
has been reached, the next bnxt_poll_p5() call will continue to poll
from the CQ rings directly.  Otherwise, the NQ will be ARMed for the
next IRQ.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Michael Chan 2018-10-14 07:02:58 -04:00 • committed by David S. Miller

parent 3675b92fa7

commit 0fcec9854a

2 changed files with 114 additions and 4 deletions

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114

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

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4

drivers/net/ethernet/broadcom/bnxt/bnxt.h

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