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| author |   Yunsheng Lin <linyunsheng@huawei.com> | 2019-07-29 10:53:30 +0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2019-07-29 08:23:41 -0700 |
| commit | dbba6da0c67ca99721b74760d3cc69df8a5a8230 (patch) | |
| tree | b3de1c314e0d71c792c1dc6de81ffee563e2e0b4 /drivers/net/ethernet/hisilicon/hns3/hns3_enet.h | |
| parent | net: hns3: add interrupt affinity support for misc interrupt (diff) | |
| download | linux-dev-dbba6da0c67ca99721b74760d3cc69df8a5a8230.tar.xz linux-dev-dbba6da0c67ca99721b74760d3cc69df8a5a8230.zip | |
net: hns3: Add support for using order 1 pages with a 4K buffer
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>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3_enet.h | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h index 848b866761df..1a17856f9a3b 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h @@ -608,9 +608,18 @@ static inline bool hns3_nic_resetting(struct net_device *netdev) #define tx_ring_data(priv, idx) ((priv)->ring_data[idx]) -#define hnae3_buf_size(_ring) ((_ring)->buf_size) -#define hnae3_page_order(_ring) (get_order(hnae3_buf_size(_ring))) -#define hnae3_page_size(_ring) (PAGE_SIZE << (u32)hnae3_page_order(_ring)) +#define hns3_buf_size(_ring) ((_ring)->buf_size) + +static inline unsigned int hns3_page_order(struct hns3_enet_ring *ring) +{ +#if (PAGE_SIZE < 8192) + if (ring->buf_size > (PAGE_SIZE / 2)) + return 1; +#endif + return 0; +} + +#define hns3_page_size(_ring) (PAGE_SIZE << hns3_page_order(_ring)) /* iterator for handling rings in ring group */ #define hns3_for_each_ring(pos, head) \ |