net/i40e: fix sync phy type by adding retry

Some phy's take longer than others to come up. Add a retry to give
more phy's a chance to come up before returning an error.

Fixes: 2209c3e2c275 ("net/i40e: avoid PCI probing failure when using bogus SFP")
Signed-off-by: David Hunt <david.hunt@intel.com>
Acked-by: Jingjing Wu <jingjing.wu@intel.com>

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index f3339b5a7c0abdf91a0ac261f51f3e385132ce76..5f26e24a3ea06784ed334f99521d13b89e26a69c 100644 (file)
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -9260,16 +9260,22 @@ i40e_dev_sync_phy_type(struct i40e_hw *hw)
        enum i40e_status_code status;
        struct i40e_aq_get_phy_abilities_resp phy_ab;
        int ret = -ENOTSUP;
+       int retries = 0;
 
        status = i40e_aq_get_phy_capabilities(hw, false, true, &phy_ab,
                                              NULL);
 
-       if (status) {
+       while (status) {
                PMD_INIT_LOG(WARNING, "Failed to sync phy type: status=%d",
                        status);
-               return ret;
+               retries++;
+               rte_delay_us(100000);
+               if  (retries < 5)
+                       status = i40e_aq_get_phy_capabilities(hw, false,
+                                       true, &phy_ab, NULL);
+               else
+                       return ret;
        }
-
        return 0;
 }