diff options
| author | Fuyun Liang <liangfuyun1@huawei.com> | 2018-03-21 10:49:25 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-03-22 20:12:02 +0300 |
| commit | cd9d187b07c23df4925c3a47e06367315ba794ca (patch) | |
| tree | 91615153853a48706c98b566eeba6a6fc7373909 /drivers | |
| parent | d458c815e7901758651f2357153518d1eb0a95d0 (diff) | |
| download | linux-cd9d187b07c23df4925c3a47e06367315ba794ca.tar.xz | |
net: hns3: change GL update rate
The interrupt coalescing self-adaptive function updates the int_gl every
interrupt. The GL update rate is too faster to get a better new GL value.
This patch changes the GL update rate to every one hundred interrupts.
The GL update rate is defined by HNS3_INT_ADAPT_DOWN_START.
Signed-off-by: Fuyun Liang <liangfuyun1@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 8 | ||||
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3_enet.h | 2 |
2 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index f700ec18a91f..e7cf7b4b40d3 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -214,6 +214,7 @@ static void hns3_vector_gl_rl_init(struct hns3_enet_tqp_vector *tqp_vector, /* Default: disable RL */ h->kinfo.int_rl_setting = 0; + tqp_vector->int_adapt_down = HNS3_INT_ADAPT_DOWN_START; tqp_vector->rx_group.coal.flow_level = HNS3_FLOW_LOW; tqp_vector->tx_group.coal.flow_level = HNS3_FLOW_LOW; } @@ -2492,6 +2493,11 @@ static void hns3_update_new_int_gl(struct hns3_enet_tqp_vector *tqp_vector) struct hns3_enet_ring_group *tx_group = &tqp_vector->tx_group; bool rx_update, tx_update; + if (tqp_vector->int_adapt_down > 0) { + tqp_vector->int_adapt_down--; + return; + } + if (rx_group->coal.gl_adapt_enable) { rx_update = hns3_get_new_int_gl(rx_group); if (rx_update) @@ -2505,6 +2511,8 @@ static void hns3_update_new_int_gl(struct hns3_enet_tqp_vector *tqp_vector) hns3_set_vector_coalesce_tx_gl(tqp_vector, tx_group->coal.int_gl); } + + tqp_vector->int_adapt_down = HNS3_INT_ADAPT_DOWN_START; } static int hns3_nic_common_poll(struct napi_struct *napi, int budget) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h index c313780ef2a7..2fe870b580b1 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h @@ -462,6 +462,8 @@ enum hns3_link_mode_bits { #define HNS3_INT_RL_MAX 0x00EC #define HNS3_INT_RL_ENABLE_MASK 0x40 +#define HNS3_INT_ADAPT_DOWN_START 100 + struct hns3_enet_coalesce { u16 int_gl; u8 gl_adapt_enable; |