[dpdk-dev] [PATCH v2 5/7] fm10k: make sure default VID available in dev_init

[Shaopeng He <shaopeng.he@intel.com>]

When PF establishes a connection with Switch Manager, it receives
a logic port range from SM, and registers certain logic ports from
that range, then a default VID will be send back from SM. This whole
transaction needs to be finished in dev_init, otherwise, in dev_start
the interrupt setting will be changed according to RX queue number,
and probably will cause this transaction failed.

Signed-off-by: Shaopeng He <shaopeng.he@intel.com>
---
 drivers/net/fm10k/fm10k_ethdev.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/net/fm10k/fm10k_ethdev.c b/drivers/net/fm10k/fm10k_ethdev.c
index ce4d916..4823816 100644
--- a/drivers/net/fm10k/fm10k_ethdev.c
+++ b/drivers/net/fm10k/fm10k_ethdev.c
@@ -2355,6 +2355,21 @@ eth_fm10k_dev_init(struct rte_eth_dev *dev)
 
 	fm10k_mbx_unlock(hw);
 
+	/* Make sure default VID is ready before going forward. */
+	if (hw->mac.type == fm10k_mac_pf) {
+		for (i = 0; i < MAX_QUERY_SWITCH_STATE_TIMES; i++) {
+			if (hw->mac.default_vid)
+				break;
+			/* Delay some time to acquire async port VLAN info. */
+			rte_delay_us(WAIT_SWITCH_MSG_US);
+		}
+
+		if (!hw->mac.default_vid) {
+			PMD_INIT_LOG(ERR, "default VID is not ready");
+			return -1;
+		}
+	}
+
 	/* Add default mac address */
 	fm10k_MAC_filter_set(dev, hw->mac.addr, true);
 
-- 
1.9.3