diff options
| author |   Jian Shen <shenjian15@huawei.com> | 2018-09-19 18:29:55 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-09-19 21:20:22 -0700 |
| commit | 37dc9cdbdc1bd64bd3b6ea285a9c2e811404dc82 (patch) | |
| tree | 61795a18073a526e4453dc16acf7581b1ed0f1ce /drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c | |
| parent | net: hns3: Fix for setting speed for phy failed problem (diff) | |
| download | linux-37dc9cdbdc1bd64bd3b6ea285a9c2e811404dc82.tar.xz linux-37dc9cdbdc1bd64bd3b6ea285a9c2e811404dc82.zip | |
net: hns3: Fix cmdq registers initialization issue for vf
According to hardware's description, the head pointer register should
be written before the tail pointer register while initializing the vf
command queue. Otherwise, it may trigger an interrupt even though there
is no command received.
Fixes: fedd0c15d288 ("net: hns3: Add HNS3 VF IMP(Integrated Management Proc) cmd interface")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c index fb471fe2c494..d8c0cc8e04c9 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_cmd.c @@ -132,8 +132,8 @@ static int hclgevf_init_cmd_queue(struct hclgevf_dev *hdev, reg_val |= HCLGEVF_NIC_CMQ_ENABLE; hclgevf_write_dev(hw, HCLGEVF_NIC_CSQ_DEPTH_REG, reg_val); - hclgevf_write_dev(hw, HCLGEVF_NIC_CSQ_TAIL_REG, 0); hclgevf_write_dev(hw, HCLGEVF_NIC_CSQ_HEAD_REG, 0); + hclgevf_write_dev(hw, HCLGEVF_NIC_CSQ_TAIL_REG, 0); break; case HCLGEVF_TYPE_CRQ: reg_val = (u32)ring->desc_dma_addr; @@ -145,8 +145,8 @@ static int hclgevf_init_cmd_queue(struct hclgevf_dev *hdev, reg_val |= HCLGEVF_NIC_CMQ_ENABLE; hclgevf_write_dev(hw, HCLGEVF_NIC_CRQ_DEPTH_REG, reg_val); - hclgevf_write_dev(hw, HCLGEVF_NIC_CRQ_TAIL_REG, 0); hclgevf_write_dev(hw, HCLGEVF_NIC_CRQ_HEAD_REG, 0); + hclgevf_write_dev(hw, HCLGEVF_NIC_CRQ_TAIL_REG, 0); break; } |