net: hns3: Add support for using order 1 pages with a 4K buffer

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Hardware supports 0.5K, 1K, 2K, 4K RX buffer size, the
RX buffer can not be reused because the hns3_page_order
return 0 when page size and RX buffer size are both 4096.

So this patch changes the hns3_page_order to return 1 when
RX buffer is greater than half of the page size and page size
is less the 8192, and dev_alloc_pages has already been used
to allocate the compound page for RX buffer.

This patch also changes hnae3_* to hns3_* for page order
and RX buffer size calculation because they are used in
hns3 module.

Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Reviewed-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

This commit is contained in:

Yunsheng Lin 2019-07-29 10:53:30 +08:00 • committed by David S. Miller

parent 0812545487

commit dbba6da0c6

2 changed files with 17 additions and 8 deletions

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10

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

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15

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

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