diff options
| author |   Xue Chaojing <xuechaojing@huawei.com> | 2018-12-09 19:14:19 +0000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-12-11 22:52:56 -0800 |
| commit | e1a76515b0c20c3477200c1345c477cc0e68c4ad (patch) | |
| tree | 7f98b3f839ac0b5a163ed25433ee1b426e99de4e /drivers | |
| parent | bpf: fix up uapi helper description and sync bpf header with tools (diff) | |
| download | linux-dev-e1a76515b0c20c3477200c1345c477cc0e68c4ad.tar.xz linux-dev-e1a76515b0c20c3477200c1345c477cc0e68c4ad.zip | |
hinic: optmize rx refill buffer mechanism
There is no need to schedule a different tasklet for refill,
This patch remove it.
Suggested-by: Neil Horman <nhorman@redhat.com>
Signed-off-by: Xue Chaojing <xuechaojing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/huawei/hinic/hinic_rx.c | 23 | ||||
| -rw-r--r-- | drivers/net/ethernet/huawei/hinic/hinic_rx.h | 2 |
2 files changed, 5 insertions, 20 deletions
diff --git a/drivers/net/ethernet/huawei/hinic/hinic_rx.c b/drivers/net/ethernet/huawei/hinic/hinic_rx.c index f86f2e693224..0098b206e7e9 100644 --- a/drivers/net/ethernet/huawei/hinic/hinic_rx.c +++ b/drivers/net/ethernet/huawei/hinic/hinic_rx.c @@ -43,6 +43,7 @@ #define RX_IRQ_NO_LLI_TIMER 0 #define RX_IRQ_NO_CREDIT 0 #define RX_IRQ_NO_RESEND_TIMER 0 +#define HINIC_RX_BUFFER_WRITE 16 /** * hinic_rxq_clean_stats - Clean the statistics of specific queue @@ -229,7 +230,6 @@ skb_out: wmb(); /* write all the wqes before update PI */ hinic_rq_update(rxq->rq, prod_idx); - tasklet_schedule(&rxq->rx_task); } return i; @@ -259,17 +259,6 @@ static void free_all_rx_skbs(struct hinic_rxq *rxq) } /** - * rx_alloc_task - tasklet for queue allocation - * @data: rx queue - **/ -static void rx_alloc_task(unsigned long data) -{ - struct hinic_rxq *rxq = (struct hinic_rxq *)data; - - (void)rx_alloc_pkts(rxq); -} - -/** * rx_recv_jumbo_pkt - Rx handler for jumbo pkt * @rxq: rx queue * @head_skb: the first skb in the list @@ -333,6 +322,7 @@ static int rxq_recv(struct hinic_rxq *rxq, int budget) struct hinic_qp *qp = container_of(rxq->rq, struct hinic_qp, rq); u64 pkt_len = 0, rx_bytes = 0; struct hinic_rq_wqe *rq_wqe; + unsigned int free_wqebbs; int num_wqes, pkts = 0; struct hinic_sge sge; struct sk_buff *skb; @@ -376,8 +366,9 @@ static int rxq_recv(struct hinic_rxq *rxq, int budget) rx_bytes += pkt_len; } - if (pkts) - tasklet_schedule(&rxq->rx_task); /* rx_alloc_pkts */ + free_wqebbs = hinic_get_rq_free_wqebbs(rxq->rq); + if (free_wqebbs > HINIC_RX_BUFFER_WRITE) + rx_alloc_pkts(rxq); u64_stats_update_begin(&rxq->rxq_stats.syncp); rxq->rxq_stats.pkts += pkts; @@ -494,8 +485,6 @@ int hinic_init_rxq(struct hinic_rxq *rxq, struct hinic_rq *rq, sprintf(rxq->irq_name, "hinic_rxq%d", qp->q_id); - tasklet_init(&rxq->rx_task, rx_alloc_task, (unsigned long)rxq); - pkts = rx_alloc_pkts(rxq); if (!pkts) { err = -ENOMEM; @@ -512,7 +501,6 @@ int hinic_init_rxq(struct hinic_rxq *rxq, struct hinic_rq *rq, err_req_rx_irq: err_rx_pkts: - tasklet_kill(&rxq->rx_task); free_all_rx_skbs(rxq); devm_kfree(&netdev->dev, rxq->irq_name); return err; @@ -528,7 +516,6 @@ void hinic_clean_rxq(struct hinic_rxq *rxq) rx_free_irq(rxq); - tasklet_kill(&rxq->rx_task); free_all_rx_skbs(rxq); devm_kfree(&netdev->dev, rxq->irq_name); } diff --git a/drivers/net/ethernet/huawei/hinic/hinic_rx.h b/drivers/net/ethernet/huawei/hinic/hinic_rx.h index ab3fabab91b2..f8ed3fa6c8ee 100644 --- a/drivers/net/ethernet/huawei/hinic/hinic_rx.h +++ b/drivers/net/ethernet/huawei/hinic/hinic_rx.h @@ -42,8 +42,6 @@ struct hinic_rxq { char *irq_name; - struct tasklet_struct rx_task; - struct napi_struct napi; }; |