net/hns3: fix mailbox wait time

The mailbox wait time can be specified at runtime. But the variable that
controls this time are not initialized when the variable isn't designated
or is specified as an invalid value, which will fail to initialize device
in the case where no device is bound to initialize the device.

Fixes: 2fc3e696a7f1 ("net/hns3: add runtime config for mailbox limit time")
Cc: stable@dpdk.org
Signed-off-by: Huisong Li <lihuisong@huawei.com>

diff --git a/drivers/net/hns3/hns3_common.c b/drivers/net/hns3/hns3_common.c
index 0bb552ea3efc5bdc359cd4d7be06f2250b8f7798..78158401f2de19b048d01546eb1fb06f38ff3a62 100644 (file)
--- a/drivers/net/hns3/hns3_common.c
+++ b/drivers/net/hns3/hns3_common.c
@@ -216,7 +216,7 @@ hns3_parse_mbx_time_limit(const char *key, const char *value, void *extra_args)
 
        /*
         * 500ms is empirical value in process of mailbox communication. If
-        * the delay value is set to one lower thanthe empirical value, mailbox
+        * the delay value is set to one lower than the empirical value, mailbox
         * communication may fail.
         */
        if (val > HNS3_MBX_DEF_TIME_LIMIT_MS && val <= UINT16_MAX)
@@ -236,6 +236,12 @@ hns3_parse_devargs(struct rte_eth_dev *dev)
        uint64_t dev_caps_mask = 0;
        struct rte_kvargs *kvlist;
 
+       /* Set default value of runtime config parameters. */
+       hns->rx_func_hint = HNS3_IO_FUNC_HINT_NONE;
+       hns->tx_func_hint = HNS3_IO_FUNC_HINT_NONE;
+       hns->dev_caps_mask = 0;
+       hns->mbx_time_limit_ms = HNS3_MBX_DEF_TIME_LIMIT_MS;
+
        if (dev->device->devargs == NULL)
                return;