net/hns3: fix timing in mailbox

[dpdk.git] / drivers / net / hns3 / hns3_mbx.c

diff --git a/drivers/net/hns3/hns3_mbx.c b/drivers/net/hns3/hns3_mbx.c
index c5b0856..eb202dd 100644 (file)
--- a/drivers/net/hns3/hns3_mbx.c
+++ b/drivers/net/hns3/hns3_mbx.c
@@ -61,13 +61,12 @@ static int
 hns3_get_mbx_resp(struct hns3_hw *hw, uint16_t code, uint16_t subcode,
                  uint8_t *resp_data, uint16_t resp_len)
 {
-#define HNS3_MAX_RETRY_MS      500
+#define HNS3_MAX_RETRY_US      500000
 #define HNS3_WAIT_RESP_US      100
        struct hns3_adapter *hns = HNS3_DEV_HW_TO_ADAPTER(hw);
        struct hns3_mbx_resp_status *mbx_resp;
+       uint32_t wait_time = 0;
        bool received;
-       uint64_t now;
-       uint64_t end;
 
        if (resp_len > HNS3_MBX_MAX_RESP_DATA_SIZE) {
                hns3_err(hw, "VF mbx response len(=%u) exceeds maximum(=%d)",
@@ -75,9 +74,7 @@ hns3_get_mbx_resp(struct hns3_hw *hw, uint16_t code, uint16_t subcode,
                return -EINVAL;
        }
 
-       now = get_timeofday_ms();
-       end = now + HNS3_MAX_RETRY_MS;
-       while (now < end) {
+       while (wait_time < HNS3_MAX_RETRY_US) {
                if (__atomic_load_n(&hw->reset.disable_cmd, __ATOMIC_RELAXED)) {
                        hns3_err(hw, "Don't wait for mbx respone because of "
                                 "disable_cmd");
@@ -103,10 +100,10 @@ hns3_get_mbx_resp(struct hns3_hw *hw, uint16_t code, uint16_t subcode,
                if (received)
                        break;
 
-               now = get_timeofday_ms();
+               wait_time += HNS3_WAIT_RESP_US;
        }
        hw->mbx_resp.req_msg_data = 0;
-       if (now >= end) {
+       if (wait_time >= HNS3_MAX_RETRY_US) {
                hns3_mbx_proc_timeout(hw, code, subcode);
                return -ETIME;
        }