[PATCH V2 net-next 7/8] net: hns3: Set tx ring' tc info when netdev is up
From: Salil Mehta <hidden>
Date: 2018-08-14 16:14:30
Also in:
lkml
Subsystem:
hisilicon network subsystem 3 driver (hns3), hisilicon network subsystem driver, networking drivers, the rest · Maintainers:
Jian Shen, Jijie Shao, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Yunsheng Lin <redacted> The HNS3_RING_TX_RING_TC_REG register is used to map tx ring to specific tc, the tx queue to tc mapping is needed by the hardware to do the correct tx schedule. Signed-off-by: Yunsheng Lin <redacted> Signed-off-by: Peng Li <redacted> Signed-off-by: Salil Mehta <redacted> --- drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 24 ++++++++++++++++++++++++ drivers/net/ethernet/hisilicon/hns3/hns3_enet.h | 1 + 2 files changed, 25 insertions(+)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index b7b9ee3..b28c7e1 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c@@ -2974,6 +2974,28 @@ static void hns3_init_ring_hw(struct hns3_enet_ring *ring) } } +static void hns3_init_tx_ring_tc(struct hns3_nic_priv *priv) +{ + struct hnae3_knic_private_info *kinfo = &priv->ae_handle->kinfo; + int i; + + for (i = 0; i < HNAE3_MAX_TC; i++) { + struct hnae3_tc_info *tc_info = &kinfo->tc_info[i]; + int j; + + if (!tc_info->enable) + continue; + + for (j = 0; j < tc_info->tqp_count; j++) { + struct hnae3_queue *q; + + q = priv->ring_data[tc_info->tqp_offset + j].ring->tqp; + hns3_write_dev(q, HNS3_RING_TX_RING_TC_REG, + tc_info->tc); + } + } +} + int hns3_init_all_ring(struct hns3_nic_priv *priv) { struct hnae3_handle *h = priv->ae_handle;
@@ -3385,6 +3407,8 @@ int hns3_nic_reset_all_ring(struct hnae3_handle *h) rx_ring->next_to_use = 0; } + hns3_init_tx_ring_tc(priv); + return 0; }
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
index 0f071a0..a02a96a 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h@@ -37,6 +37,7 @@ enum hns3_nic_state { #define HNS3_RING_TX_RING_BASEADDR_L_REG 0x00040 #define HNS3_RING_TX_RING_BASEADDR_H_REG 0x00044 #define HNS3_RING_TX_RING_BD_NUM_REG 0x00048 +#define HNS3_RING_TX_RING_TC_REG 0x00050 #define HNS3_RING_TX_RING_TAIL_REG 0x00058 #define HNS3_RING_TX_RING_HEAD_REG 0x0005C #define HNS3_RING_TX_RING_FBDNUM_REG 0x00060
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2.7.4