[PATCH net-next 12/13] nfp: mark port state as stale if update failed

[Jakub Kicinski]

If reading new state of the port failed, mark the port back as CHANGED.
This way next user state request will trigger refresh, which will
hopefully succeed.

Signed-off-by: Jakub Kicinski <jakub.kicin...@netronome.com>
Reviewed-by: Simon Horman <simon.hor...@netronome.com>
---
 drivers/net/ethernet/netronome/nfp/nfp_net_main.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_main.c 
b/drivers/net/ethernet/netronome/nfp/nfp_net_main.c
index 3ee9a9772110..74fdef44e139 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_main.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_main.c
@@ -528,6 +528,7 @@ nfp_net_eth_port_update(struct nfp_cpp *cpp, struct 
nfp_port *port,
 
        eth_port = nfp_net_find_port(eth_table, port->eth_id);
        if (!eth_port) {
+               set_bit(NFP_PORT_CHANGED, &port->flags);
                nfp_warn(cpp, "Warning: port #%d not present after reconfig\n",
                         port->eth_id);
                return -EIO;
@@ -563,6 +564,9 @@ static void nfp_net_refresh_vnics(struct work_struct *work)
 
        eth_table = nfp_eth_read_ports(pf->cpp);
        if (!eth_table) {
+               list_for_each_entry(port, &pf->ports, port_list)
+                       if (__nfp_port_get_eth_port(port))
+                               set_bit(NFP_PORT_CHANGED, &port->flags);
                rtnl_unlock();
                nfp_err(pf->cpp, "Error refreshing port config!\n");
                goto out;
@@ -611,6 +615,7 @@ int nfp_net_refresh_eth_port(struct nfp_port *port)
 
        eth_table = nfp_eth_read_ports(cpp);
        if (!eth_table) {
+               set_bit(NFP_PORT_CHANGED, &port->flags);
                nfp_err(cpp, "Error refreshing port state table!\n");
                return -EIO;
        }
-- 
2.11.0