From: Yufeng Mo <moyufeng@huawei.com> mainline inclusion from mainline-master commit 23e0316049af category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I4M1HB CVE: NA Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i... ---------------------------------------------------------------------- hclge_cfg_common_loopback() is a bit too long, so encapsulate hclge_cfg_common_loopback_cmd_send() and hclge_cfg_common_loopback_wait() two functions to improve readability. Signed-off-by: Yufeng Mo <moyufeng@huawei.com> Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net> Reviewed-by: Yongxin Li <liyongxin1@huawei.com> Signed-off-by: Junxin Chen <chenjunxin1@huawei.com> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> --- .../hisilicon/hns3/hns3pf/hclge_main.c | 62 +++++++++++++------ 1 file changed, 42 insertions(+), 20 deletions(-) diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c index 5d1cfd5d1fd5..3e8e4ad4c347 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c @@ -8000,16 +8000,13 @@ static int hclge_set_app_loopback(struct hclge_dev *hdev, bool en) return ret; } -static int hclge_cfg_common_loopback(struct hclge_dev *hdev, bool en, - enum hnae3_loop loop_mode) +static int hclge_cfg_common_loopback_cmd_send(struct hclge_dev *hdev, bool en, + enum hnae3_loop loop_mode) { -#define HCLGE_COMMON_LB_RETRY_MS 10 -#define HCLGE_COMMON_LB_RETRY_NUM 100 - struct hclge_common_lb_cmd *req; struct hclge_desc desc; - int ret, i = 0; u8 loop_mode_b; + int ret; req = (struct hclge_common_lb_cmd *)desc.data; hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_COMMON_LOOPBACK, false); @@ -8026,23 +8023,34 @@ static int hclge_cfg_common_loopback(struct hclge_dev *hdev, bool en, break; default: dev_err(&hdev->pdev->dev, - "unsupported common loopback mode %d\n", loop_mode); + "unsupported loopback mode %d\n", loop_mode); return -ENOTSUPP; } - if (en) { + req->mask = loop_mode_b; + if (en) req->enable = loop_mode_b; - req->mask = loop_mode_b; - } else { - req->mask = loop_mode_b; - } ret = hclge_cmd_send(&hdev->hw, &desc, 1); - if (ret) { + if (ret) dev_err(&hdev->pdev->dev, - "common loopback set fail, ret = %d\n", ret); - return ret; - } + "failed to send loopback cmd, loop_mode = %d, ret = %d\n", + loop_mode, ret); + + return ret; +} + +static int hclge_cfg_common_loopback_wait(struct hclge_dev *hdev) +{ +#define HCLGE_COMMON_LB_RETRY_MS 10 +#define HCLGE_COMMON_LB_RETRY_NUM 100 + + struct hclge_common_lb_cmd *req; + struct hclge_desc desc; + u32 i = 0; + int ret; + + req = (struct hclge_common_lb_cmd *)desc.data; do { msleep(HCLGE_COMMON_LB_RETRY_MS); @@ -8051,20 +8059,34 @@ static int hclge_cfg_common_loopback(struct hclge_dev *hdev, bool en, ret = hclge_cmd_send(&hdev->hw, &desc, 1); if (ret) { dev_err(&hdev->pdev->dev, - "common loopback get, ret = %d\n", ret); + "failed to get loopback done status, ret = %d\n", + ret); return ret; } } while (++i < HCLGE_COMMON_LB_RETRY_NUM && !(req->result & HCLGE_CMD_COMMON_LB_DONE_B)); if (!(req->result & HCLGE_CMD_COMMON_LB_DONE_B)) { - dev_err(&hdev->pdev->dev, "common loopback set timeout\n"); + dev_err(&hdev->pdev->dev, "wait loopback timeout\n"); return -EBUSY; } else if (!(req->result & HCLGE_CMD_COMMON_LB_SUCCESS_B)) { - dev_err(&hdev->pdev->dev, "common loopback set failed in fw\n"); + dev_err(&hdev->pdev->dev, "faile to do loopback test\n"); return -EIO; } - return ret; + + return 0; +} + +static int hclge_cfg_common_loopback(struct hclge_dev *hdev, bool en, + enum hnae3_loop loop_mode) +{ + int ret; + + ret = hclge_cfg_common_loopback_cmd_send(hdev, en, loop_mode); + if (ret) + return ret; + + return hclge_cfg_common_loopback_wait(hdev); } static int hclge_set_common_loopback(struct hclge_dev *hdev, bool en, -- 2.20.1