diff options
| author | Guangbin Huang <huangguangbin2@huawei.com> | 2022-09-16 10:38:01 +0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-09-21 14:32:21 -0700 |
| commit | dfea275e06c26690b1ef27399fd84ce50372b85c (patch) | |
| tree | 843897ef95fedb5164335b0e23227cedaa67da38 /drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | |
| parent | 04b6ba143521f4485b7f2c36c655b262a79dae97 (diff) | |
net: hns3: optimize converting dscp to priority process of hns3_nic_select_queue()
Currently, when function hns3_nic_select_queue() converts dscp to priority,
it calls an indirect callback ae_algo->ops->get_dscp_prio to get priority.
However as function hns3_nic_select_queue() is in fast path, the indirect
call may cause degradation of performance. For optimization, this patch
moves dscp_app_cnt and dscp_prio from struct hclge_tm_info to struct
hnae3_knic_private_info, so they can be used in both hclge and hns3 layers.
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/hisilicon/hns3/hns3_enet.c')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index db099549e511..39b75b68474c 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -2987,22 +2987,19 @@ static u16 hns3_nic_select_queue(struct net_device *netdev, struct net_device *sb_dev) { struct hnae3_handle *h = hns3_get_handle(netdev); - u8 dscp, priority; - int ret; + u8 dscp; if (h->kinfo.tc_map_mode != HNAE3_TC_MAP_MODE_DSCP || !h->ae_algo->ops->get_dscp_prio) goto out; dscp = hns3_get_skb_dscp(skb); - if (unlikely(dscp == HNS3_INVALID_DSCP)) - goto out; - - ret = h->ae_algo->ops->get_dscp_prio(h, dscp, NULL, &priority); - if (ret) + if (unlikely(dscp >= HNAE3_MAX_DSCP)) goto out; - skb->priority = priority; + skb->priority = h->kinfo.dscp_prio[dscp]; + if (skb->priority == HNAE3_PRIO_ID_INVALID) + skb->priority = 0; out: return netdev_pick_tx(netdev, skb, sb_dev); |