net: hns: bug fix about setting coalsecs-usecs to 0

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When set rx/tx coalesce usecs to 0, the interrupt coalesce will be
disabled, but there is a interrupt rate limit which set to 1us, it
will cause no interrupt occurs. This patch disable interrupt limit
when sets coalsecs usecs to 0, and restores it to 1 in other case.

Signed-off-by: Daode Huang <huangdaode@hisilicon.com>
Reviewed-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

...

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Daode Huang 2016-09-29 18:09:10 +01:00 • committed by Doug Ledford

parent 0e97cd4e46

commit 6771cbf944

2 changed files with 20 additions and 0 deletions

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16

drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c

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4

drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h

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