From: Yufeng Mo moyufeng@huawei.com
mainline inclusion from mainline-master commit 9f0c6f4b7475dd97e1f0eed81dd6ff173cf8c7fc category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I46N7D CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...
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For device whose version is above V3(include V3), the GL can select EQE or CQE mode, so adds support for it.
In CQE mode, the coalesced timer will restart when the first new completion occurs, while in EQE mode, the timer will not restart.
Signed-off-by: Yufeng Mo moyufeng@huawei.com Signed-off-by: Huazhong Tan tanhuazhong@huawei.com Signed-off-by: Jakub Kicinski kuba@kernel.org Reviewed-by: Yongxin Li liyongxin1@huawei.com Signed-off-by: Junxin Chen chenjunxin1@huawei.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- drivers/net/ethernet/hisilicon/hns3/hnae3.h | 1 + .../net/ethernet/hisilicon/hns3/hns3_enet.c | 49 ++++++++++++++++++- .../net/ethernet/hisilicon/hns3/hns3_enet.h | 8 +++ .../hisilicon/hns3/hns3pf/hclge_main.c | 1 + .../hisilicon/hns3/hns3vf/hclgevf_main.c | 1 + 5 files changed, 58 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h index ef0f897d53fa..7dc44a674614 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h +++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h @@ -773,6 +773,7 @@ struct hnae3_knic_private_info {
u16 int_rl_setting; enum pkt_hash_types rss_type; + void __iomem *io_base; };
struct hnae3_roce_private_info { diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index cdb5f14fb6bc..bd42593dbebe 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -4434,9 +4434,7 @@ static void hns3_tx_dim_work(struct work_struct *work) static void hns3_nic_init_dim(struct hns3_enet_tqp_vector *tqp_vector) { INIT_WORK(&tqp_vector->rx_group.dim.work, hns3_rx_dim_work); - tqp_vector->rx_group.dim.mode = DIM_CQ_PERIOD_MODE_START_FROM_EQE; INIT_WORK(&tqp_vector->tx_group.dim.work, hns3_tx_dim_work); - tqp_vector->tx_group.dim.mode = DIM_CQ_PERIOD_MODE_START_FROM_EQE; }
static int hns3_nic_init_vector_data(struct hns3_nic_priv *priv) @@ -4954,6 +4952,48 @@ static void hns3_info_show(struct hns3_nic_priv *priv) dev_info(priv->dev, "Max mtu size: %u\n", priv->netdev->max_mtu); }
+static void hns3_set_cq_period_mode(struct hns3_nic_priv *priv, + enum dim_cq_period_mode mode, bool is_tx) +{ + struct hnae3_ae_dev *ae_dev = pci_get_drvdata(priv->ae_handle->pdev); + struct hnae3_handle *handle = priv->ae_handle; + int i; + + if (is_tx) { + priv->tx_cqe_mode = mode; + + for (i = 0; i < priv->vector_num; i++) + priv->tqp_vector[i].tx_group.dim.mode = mode; + } else { + priv->rx_cqe_mode = mode; + + for (i = 0; i < priv->vector_num; i++) + priv->tqp_vector[i].rx_group.dim.mode = mode; + } + + /* only device version above V3(include V3), GL can switch CQ/EQ + * period mode. + */ + if (ae_dev->dev_version >= HNAE3_DEVICE_VERSION_V3) { + u32 new_mode; + u64 reg; + + new_mode = (mode == DIM_CQ_PERIOD_MODE_START_FROM_CQE) ? + HNS3_CQ_MODE_CQE : HNS3_CQ_MODE_EQE; + reg = is_tx ? HNS3_GL1_CQ_MODE_REG : HNS3_GL0_CQ_MODE_REG; + + writel(new_mode, handle->kinfo.io_base + reg); + } +} + +static void hns3_cq_period_mode_init(struct hns3_nic_priv *priv, + enum dim_cq_period_mode tx_mode, + enum dim_cq_period_mode rx_mode) +{ + hns3_set_cq_period_mode(priv, tx_mode, true); + hns3_set_cq_period_mode(priv, rx_mode, false); +} + static int hns3_client_init(struct hnae3_handle *handle) { struct pci_dev *pdev = handle->pdev; @@ -5021,6 +5061,9 @@ static int hns3_client_init(struct hnae3_handle *handle) goto out_init_ring; }
+ hns3_cq_period_mode_init(priv, DIM_CQ_PERIOD_MODE_START_FROM_EQE, + DIM_CQ_PERIOD_MODE_START_FROM_EQE); + ret = hns3_init_phy(netdev); if (ret) goto out_init_phy; @@ -5353,6 +5396,8 @@ static int hns3_reset_notify_init_enet(struct hnae3_handle *handle) if (ret) goto err_uninit_vector;
+ hns3_cq_period_mode_init(priv, priv->tx_cqe_mode, priv->rx_cqe_mode); + /* the device can work without cpu rmap, only aRFS needs it */ ret = hns3_set_rx_cpu_rmap(netdev); if (ret) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h index f40d44a7994e..ed3587dcfbbc 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h @@ -201,6 +201,12 @@ enum hns3_nic_state {
#define HNS3_RING_EN_B 0
+#define HNS3_GL0_CQ_MODE_REG 0x20d00 +#define HNS3_GL1_CQ_MODE_REG 0x20d04 +#define HNS3_GL2_CQ_MODE_REG 0x20d08 +#define HNS3_CQ_MODE_EQE 1U +#define HNS3_CQ_MODE_CQE 0U + enum hns3_pkt_l2t_type { HNS3_L2_TYPE_UNICAST, HNS3_L2_TYPE_MULTICAST, @@ -569,6 +575,8 @@ struct hns3_nic_priv {
unsigned long state;
+ enum dim_cq_period_mode tx_cqe_mode; + enum dim_cq_period_mode rx_cqe_mode; struct hns3_enet_coalesce tx_coal; struct hns3_enet_coalesce rx_coal; u32 tx_copybreak; diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c index 6e744eca0d50..1b6bb0d71fcb 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c @@ -1815,6 +1815,7 @@ static int hclge_vport_setup(struct hclge_vport *vport, u16 num_tqps) nic->pdev = hdev->pdev; nic->ae_algo = &ae_algo; nic->numa_node_mask = hdev->numa_node_mask; + nic->kinfo.io_base = hdev->hw.io_base;
ret = hclge_knic_setup(vport, num_tqps, hdev->num_tx_desc, hdev->num_rx_desc); diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c index f5b3532695dd..60588b194fe7 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c @@ -539,6 +539,7 @@ static int hclgevf_set_handle_info(struct hclgevf_dev *hdev) nic->pdev = hdev->pdev; nic->numa_node_mask = hdev->numa_node_mask; nic->flags |= HNAE3_SUPPORT_VF; + nic->kinfo.io_base = hdev->hw.io_base;
ret = hclgevf_knic_setup(hdev); if (ret)