[dpdk-dev] [PATCH 01/11] net/sfc: fix get xstats by ID callback to use MAC stats lock
From: Andrew Rybchenko <hidden>
Date: 2021-06-04 14:42:48
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Ivan Ilchenko <redacted>
Add MAC stats lock in get xstats by id callback before reading
number of supported MAC stats.
Fixes: 73280c1e4ff ("net/sfc: support xstats retrieval by ID")
Cc: stable@dpdk.org
Signed-off-by: Ivan Ilchenko <redacted>
Signed-off-by: Andrew Rybchenko <redacted>
Reviewed-by: Andy Moreton <redacted>
---
drivers/net/sfc/sfc_ethdev.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/net/sfc/sfc_ethdev.c b/drivers/net/sfc/sfc_ethdev.c
index 88896db1f8..d4ac61ff76 100644
--- a/drivers/net/sfc/sfc_ethdev.c
+++ b/drivers/net/sfc/sfc_ethdev.c@@ -789,12 +789,14 @@ sfc_xstats_get_by_id(struct rte_eth_dev *dev, const uint64_t *ids, int ret; int rc; - if (unlikely(values == NULL) || - unlikely((ids == NULL) && (n < port->mac_stats_nb_supported))) - return port->mac_stats_nb_supported; - rte_spinlock_lock(&port->mac_stats_lock); + if (unlikely(values == NULL) || + unlikely(ids == NULL && n < port->mac_stats_nb_supported)) { + ret = port->mac_stats_nb_supported; + goto unlock; + } + rc = sfc_port_update_mac_stats(sa); if (rc != 0) { SFC_ASSERT(rc > 0);
--
2.30.2