net: hns3: Fix for rx_priv_buf_alloc not setting rx shared buffer

rx_priv_buf_alloc is used to tell hardware how much buffer is
used for rx direction, right now only the private buffer is
assigned.
For ae_dev that doesn't support DCB, private rx buffer is assigned
to zero, only shared rx buffer is used. So not setting the shared
rx buffer cause dropping of packet in SSU.

Fixes: 46a3df9f9718 ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
index 30e2ad5ac0dab72e2694ad6e43d7c7239df9063e..758cf394813126450ce190b24d16af5e41f7b92b 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
@@ -270,7 +270,8 @@ struct hclge_tx_buff_alloc {
 
 struct hclge_rx_priv_buff {
        __le16 buf_num[HCLGE_TC_NUM];
-       u8 rsv[8];
+       __le16 shared_buf;
+       u8 rsv[6];
 };
 
 struct hclge_query_version {

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index a7d8fb1e15f6b74448c1610be04281405565ebba..e313552bb23dd03c3bd7a6e5e9f2c3d2eaf91964 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -1622,6 +1622,10 @@ static int hclge_rx_priv_buf_alloc(struct hclge_dev *hdev)
                        cpu_to_le16(true << HCLGE_TC0_PRI_BUF_EN_B);
        }
 
+       req->shared_buf =
+               cpu_to_le16((hdev->s_buf.buf_size >> HCLGE_BUF_UNIT_S) |
+                           (1 << HCLGE_TC0_PRI_BUF_EN_B));
+
        ret = hclge_cmd_send(&hdev->hw, &desc, 1);
        if (ret) {
                dev_err(&hdev->pdev->dev,