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net/thunderx: wait to complete during link update

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Some DPDK applications/examples check link status on their
start. NICVF does not wait for the link, so those apps fail.

Wait up to 9 seconds for the link as other PMDs do in order
to fix those apps/examples.

Signed-off-by: Andriy Berestovskyy <andriy.berestovskyy@caviumnetworks.com>
Acked-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
This commit is contained in:
Andriy Berestovskyy 2017-03-31 15:57:49 +02:00 committed by Ferruh Yigit
parent 974fd9991a
commit 0cca56708d
1 changed files with 17 additions and 4 deletions
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21
drivers/net/thunderx/nicvf_ethdev.c
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@ -144,16 +144,29 @@ nicvf_periodic_alarm_stop(void (fn)(void *), void *arg)
* Return 0 means link status changed, -1 means not changed
*/
static int
nicvf_dev_link_update(struct rte_eth_dev *dev,
int wait_to_complete __rte_unused)
nicvf_dev_link_update(struct rte_eth_dev *dev, int wait_to_complete)
{
#define CHECK_INTERVAL 100 /* 100ms */
#define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
struct rte_eth_link link;
struct nicvf *nic = nicvf_pmd_priv(dev);
int i;
PMD_INIT_FUNC_TRACE();
memset(&link, 0, sizeof(link));
nicvf_set_eth_link_status(nic, &link);
if (wait_to_complete) {
/* rte_eth_link_get() might need to wait up to 9 seconds */
for (i = 0; i < MAX_CHECK_TIME; i++) {
memset(&link, 0, sizeof(link));
nicvf_set_eth_link_status(nic, &link);
if (link.link_status)
break;
rte_delay_ms(CHECK_INTERVAL);
}
} else {
memset(&link, 0, sizeof(link));
nicvf_set_eth_link_status(nic, &link);
}
return nicvf_atomic_write_link_status(dev, &link);
}