net: hns3: unify the page reusing for page size 4K and 64K

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When page size is 64K, RX buffer is currently not reused when the
page_offset is moved to last buffer. This patch adds checking to
decide whether the buffer page can be reused when last_offset is
moved beyond last offset.

If the driver is the only user of page when page_offset is moved
to beyond last offset, then buffer can be reused and page_offset
is set to zero.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Yunsheng Lin 2019-05-06 10:48:50 +08:00 • committed by David S. Miller

parent ce74370c2c

commit 389ca14615

1 changed files with 13 additions and 32 deletions

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45

drivers/net/ethernet/hisilicon/hns3/hns3_enet.c

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