From: David Hunt <david.hunt@intel.com>
Date: Mon, 24 Jul 2017 08:48:44 +0000 (+0100)
Subject: net/i40e: fix sync phy type by adding retry
X-Git-Tag: spdx-start~2303
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=935bceb9ba0de8a7a276d5b3dd41e0168a273f26;p=dpdk.git

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 f3339b5a7c..5f26e24a3e 100644
--- 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;
 }