From: Jia Yu <jyu@vmware.com>
Date: Fri, 7 Nov 2014 17:31:50 +0000 (-0800)
Subject: ethdev: update link status after start
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=99610782edaaa88f6c442ff11662780aa161be85;p=dpdk.git

ethdev: update link status after start

Since LSR interrupt is disabled by pmd drivers, link status in rte_eth_device is always down.
Bond slave_configure() enables LSR interrupt on devices to get notification if link status
changes. However, the LSC interrupt at device start time is still lost.

In this fix, call link_update to read link status from hardware
register at device start time.

Signed-off-by: Jia Yu <jyu@vmware.com>
Acked-by: Helin Zhang <helin.zhang@intel.com>
---

diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index ea3a1fbfd9..8993b35ffb 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -911,6 +911,10 @@ rte_eth_dev_start(uint8_t port_id)
 
 	rte_eth_dev_config_restore(port_id);
 
+	if (dev->data->dev_conf.intr_conf.lsc != 0) {
+		FUNC_PTR_OR_ERR_RET(*dev->dev_ops->link_update, -ENOTSUP);
+		(*dev->dev_ops->link_update)(dev, 0);
+	}
 	return 0;
 }