[dpdk-dev] [PATCH 3/4] net/sfc: report correct link status when port is not started
Andrew Rybchenko
arybchenko at solarflare.com
Thu Jan 12 10:03:22 CET 2017
Fixes: 215e8b89d8a8 ("net/sfc: implement device operation to retrieve link info")
Signed-off-by: Andrew Rybchenko <arybchenko at solarflare.com>
Reviewed-by: Andrew Lee <alee at solarflare.com>
---
drivers/net/sfc/sfc_ethdev.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/net/sfc/sfc_ethdev.c b/drivers/net/sfc/sfc_ethdev.c
index d13b6d6..3ad9ada 100644
--- a/drivers/net/sfc/sfc_ethdev.c
+++ b/drivers/net/sfc/sfc_ethdev.c
@@ -188,14 +188,17 @@
sfc_log_init(sa, "entry");
- if (sa->state != SFC_ADAPTER_STARTED)
- return 0;
-
retry:
EFX_STATIC_ASSERT(sizeof(*dev_link) == sizeof(rte_atomic64_t));
*(int64_t *)&old_link = rte_atomic64_read((rte_atomic64_t *)dev_link);
- if (wait_to_complete) {
+ if (sa->state != SFC_ADAPTER_STARTED) {
+ sfc_port_link_mode_to_info(EFX_LINK_UNKNOWN, ¤t_link);
+ if (!rte_atomic64_cmpset((volatile uint64_t *)dev_link,
+ *(uint64_t *)&old_link,
+ *(uint64_t *)¤t_link))
+ goto retry;
+ } else if (wait_to_complete) {
efx_link_mode_t link_mode;
if (efx_port_poll(sa->nic, &link_mode) != 0)
--
1.8.2.3
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