diff options
Diffstat (limited to 'drivers/net/ethernet/hisilicon/hns3/hns3_enet.c')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 113 |
1 files changed, 70 insertions, 43 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index 9ff797fb36c4..aaa803563bd2 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -11,6 +11,7 @@ #include <linux/irq.h> #include <linux/ip.h> #include <linux/ipv6.h> +#include <linux/iommu.h> #include <linux/module.h> #include <linux/pci.h> #include <linux/skbuff.h> @@ -473,20 +474,14 @@ static void hns3_mask_vector_irq(struct hns3_enet_tqp_vector *tqp_vector, writel(mask_en, tqp_vector->mask_addr); } -static void hns3_vector_enable(struct hns3_enet_tqp_vector *tqp_vector) +static void hns3_irq_enable(struct hns3_enet_tqp_vector *tqp_vector) { napi_enable(&tqp_vector->napi); enable_irq(tqp_vector->vector_irq); - - /* enable vector */ - hns3_mask_vector_irq(tqp_vector, 1); } -static void hns3_vector_disable(struct hns3_enet_tqp_vector *tqp_vector) +static void hns3_irq_disable(struct hns3_enet_tqp_vector *tqp_vector) { - /* disable vector */ - hns3_mask_vector_irq(tqp_vector, 0); - disable_irq(tqp_vector->vector_irq); napi_disable(&tqp_vector->napi); cancel_work_sync(&tqp_vector->rx_group.dim.work); @@ -707,11 +702,42 @@ static int hns3_set_rx_cpu_rmap(struct net_device *netdev) return 0; } +static void hns3_enable_irqs_and_tqps(struct net_device *netdev) +{ + struct hns3_nic_priv *priv = netdev_priv(netdev); + struct hnae3_handle *h = priv->ae_handle; + u16 i; + + for (i = 0; i < priv->vector_num; i++) + hns3_irq_enable(&priv->tqp_vector[i]); + + for (i = 0; i < priv->vector_num; i++) + hns3_mask_vector_irq(&priv->tqp_vector[i], 1); + + for (i = 0; i < h->kinfo.num_tqps; i++) + hns3_tqp_enable(h->kinfo.tqp[i]); +} + +static void hns3_disable_irqs_and_tqps(struct net_device *netdev) +{ + struct hns3_nic_priv *priv = netdev_priv(netdev); + struct hnae3_handle *h = priv->ae_handle; + u16 i; + + for (i = 0; i < h->kinfo.num_tqps; i++) + hns3_tqp_disable(h->kinfo.tqp[i]); + + for (i = 0; i < priv->vector_num; i++) + hns3_mask_vector_irq(&priv->tqp_vector[i], 0); + + for (i = 0; i < priv->vector_num; i++) + hns3_irq_disable(&priv->tqp_vector[i]); +} + static int hns3_nic_net_up(struct net_device *netdev) { struct hns3_nic_priv *priv = netdev_priv(netdev); struct hnae3_handle *h = priv->ae_handle; - int i, j; int ret; ret = hns3_nic_reset_all_ring(h); @@ -720,23 +746,13 @@ static int hns3_nic_net_up(struct net_device *netdev) clear_bit(HNS3_NIC_STATE_DOWN, &priv->state); - /* enable the vectors */ - for (i = 0; i < priv->vector_num; i++) - hns3_vector_enable(&priv->tqp_vector[i]); - - /* enable rcb */ - for (j = 0; j < h->kinfo.num_tqps; j++) - hns3_tqp_enable(h->kinfo.tqp[j]); + hns3_enable_irqs_and_tqps(netdev); /* start the ae_dev */ ret = h->ae_algo->ops->start ? h->ae_algo->ops->start(h) : 0; if (ret) { set_bit(HNS3_NIC_STATE_DOWN, &priv->state); - while (j--) - hns3_tqp_disable(h->kinfo.tqp[j]); - - for (j = i - 1; j >= 0; j--) - hns3_vector_disable(&priv->tqp_vector[j]); + hns3_disable_irqs_and_tqps(netdev); } return ret; @@ -823,17 +839,9 @@ static void hns3_reset_tx_queue(struct hnae3_handle *h) static void hns3_nic_net_down(struct net_device *netdev) { struct hns3_nic_priv *priv = netdev_priv(netdev); - struct hnae3_handle *h = hns3_get_handle(netdev); const struct hnae3_ae_ops *ops; - int i; - - /* disable vectors */ - for (i = 0; i < priv->vector_num; i++) - hns3_vector_disable(&priv->tqp_vector[i]); - /* disable rcb */ - for (i = 0; i < h->kinfo.num_tqps; i++) - hns3_tqp_disable(h->kinfo.tqp[i]); + hns3_disable_irqs_and_tqps(netdev); /* stop ae_dev */ ops = priv->ae_handle->ae_algo->ops; @@ -1032,6 +1040,8 @@ static bool hns3_can_use_tx_sgl(struct hns3_enet_ring *ring, static void hns3_init_tx_spare_buffer(struct hns3_enet_ring *ring) { u32 alloc_size = ring->tqp->handle->kinfo.tx_spare_buf_size; + struct net_device *netdev = ring_to_netdev(ring); + struct hns3_nic_priv *priv = netdev_priv(netdev); struct hns3_tx_spare *tx_spare; struct page *page; dma_addr_t dma; @@ -1073,6 +1083,7 @@ static void hns3_init_tx_spare_buffer(struct hns3_enet_ring *ring) tx_spare->buf = page_address(page); tx_spare->len = PAGE_SIZE << order; ring->tx_spare = tx_spare; + ring->tx_copybreak = priv->tx_copybreak; return; dma_mapping_error: @@ -4867,6 +4878,30 @@ static void hns3_nic_dealloc_vector_data(struct hns3_nic_priv *priv) devm_kfree(&pdev->dev, priv->tqp_vector); } +static void hns3_update_tx_spare_buf_config(struct hns3_nic_priv *priv) +{ +#define HNS3_MIN_SPARE_BUF_SIZE (2 * 1024 * 1024) +#define HNS3_MAX_PACKET_SIZE (64 * 1024) + + struct iommu_domain *domain = iommu_get_domain_for_dev(priv->dev); + struct hnae3_ae_dev *ae_dev = hns3_get_ae_dev(priv->ae_handle); + struct hnae3_handle *handle = priv->ae_handle; + + if (ae_dev->dev_version < HNAE3_DEVICE_VERSION_V3) + return; + + if (!(domain && iommu_is_dma_domain(domain))) + return; + + priv->min_tx_copybreak = HNS3_MAX_PACKET_SIZE; + priv->min_tx_spare_buf_size = HNS3_MIN_SPARE_BUF_SIZE; + + if (priv->tx_copybreak < priv->min_tx_copybreak) + priv->tx_copybreak = priv->min_tx_copybreak; + if (handle->kinfo.tx_spare_buf_size < priv->min_tx_spare_buf_size) + handle->kinfo.tx_spare_buf_size = priv->min_tx_spare_buf_size; +} + static void hns3_ring_get_cfg(struct hnae3_queue *q, struct hns3_nic_priv *priv, unsigned int ring_type) { @@ -5100,6 +5135,7 @@ int hns3_init_all_ring(struct hns3_nic_priv *priv) int i, j; int ret; + hns3_update_tx_spare_buf_config(priv); for (i = 0; i < ring_num; i++) { ret = hns3_alloc_ring_memory(&priv->ring[i]); if (ret) { @@ -5304,6 +5340,8 @@ static int hns3_client_init(struct hnae3_handle *handle) priv->ae_handle = handle; priv->tx_timeout_count = 0; priv->max_non_tso_bd_num = ae_dev->dev_specs.max_non_tso_bd_num; + priv->min_tx_copybreak = 0; + priv->min_tx_spare_buf_size = 0; set_bit(HNS3_NIC_STATE_DOWN, &priv->state); handle->msg_enable = netif_msg_init(debug, DEFAULT_MSG_LEVEL); @@ -5864,8 +5902,6 @@ int hns3_set_channels(struct net_device *netdev, void hns3_external_lb_prepare(struct net_device *ndev, bool if_running) { struct hns3_nic_priv *priv = netdev_priv(ndev); - struct hnae3_handle *h = priv->ae_handle; - int i; if (!if_running) return; @@ -5876,11 +5912,7 @@ void hns3_external_lb_prepare(struct net_device *ndev, bool if_running) netif_carrier_off(ndev); netif_tx_disable(ndev); - for (i = 0; i < priv->vector_num; i++) - hns3_vector_disable(&priv->tqp_vector[i]); - - for (i = 0; i < h->kinfo.num_tqps; i++) - hns3_tqp_disable(h->kinfo.tqp[i]); + hns3_disable_irqs_and_tqps(ndev); /* delay ring buffer clearing to hns3_reset_notify_uninit_enet * during reset process, because driver may not be able @@ -5896,7 +5928,6 @@ void hns3_external_lb_restore(struct net_device *ndev, bool if_running) { struct hns3_nic_priv *priv = netdev_priv(ndev); struct hnae3_handle *h = priv->ae_handle; - int i; if (!if_running) return; @@ -5912,11 +5943,7 @@ void hns3_external_lb_restore(struct net_device *ndev, bool if_running) clear_bit(HNS3_NIC_STATE_DOWN, &priv->state); - for (i = 0; i < priv->vector_num; i++) - hns3_vector_enable(&priv->tqp_vector[i]); - - for (i = 0; i < h->kinfo.num_tqps; i++) - hns3_tqp_enable(h->kinfo.tqp[i]); + hns3_enable_irqs_and_tqps(ndev); netif_tx_wake_all_queues(ndev); |