net/mlx4_core: Fix wrong index in propagating port change event to VFs

[ Upstream commit 1c1bf34951e8d17941bf708d1901c47e81b15d55 ]

The port-change event processing in procedure mlx4_eq_int() uses "slave"
as the vf_oper array index. Since the value of "slave" is the PF function
index, the result is that the PF link state is used for deciding to
propagate the event for all the VFs. The VF link state should be used,
so the VF function index should be used here.

Fixes: 948e306d7d64 ('net/mlx4: Add VF link state support')
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>

diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c
index 0416c5b3b35cc721c9e312e6b7b2ca0c0917cbf7..3990b435a081eab7dfa9c5cad667fdaeb6a194b4 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx4/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/eq.c
@@ -558,7 +558,7 @@ static int mlx4_eq_int(struct mlx4_dev *dev, struct mlx4_eq *eq)
                                                mlx4_dbg(dev, "%s: Sending MLX4_PORT_CHANGE_SUBTYPE_DOWN"
                                                         " to slave: %d, port:%d\n",
                                                         __func__, i, port);
-                                               s_info = &priv->mfunc.master.vf_oper[slave].vport[port].state;
+                                               s_info = &priv->mfunc.master.vf_oper[i].vport[port].state;
                                                if (IFLA_VF_LINK_STATE_AUTO == s_info->link_state)
                                                        mlx4_slave_event(dev, i, eqe);
                                        } else {  /* IB port */
@@ -584,7 +584,7 @@ static int mlx4_eq_int(struct mlx4_dev *dev, struct mlx4_eq *eq)
                                        for (i = 0; i < dev->num_slaves; i++) {
                                                if (i == mlx4_master_func_num(dev))
                                                        continue;
-                                               s_info = &priv->mfunc.master.vf_oper[slave].vport[port].state;
+                                               s_info = &priv->mfunc.master.vf_oper[i].vport[port].state;
                                                if (IFLA_VF_LINK_STATE_AUTO == s_info->link_state)
                                                        mlx4_slave_event(dev, i, eqe);
                                        }