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authorYevgeny Petrilin <yevgenyp@mellanox.co.il>2009-03-19 05:45:11 +0300
committerRoland Dreier <rolandd@cisco.com>2009-03-19 05:45:11 +0300
commit27bf91d6a0d5a9c7224e8687754249bba67dd4cf (patch)
tree55c253fa4438ea29d73f072a88dff5fb74e2ca4e /drivers/net/mlx4/eq.c
parent793730bfb6711d6d14629e63845c25a3c14d205e (diff)
downloadlinux-27bf91d6a0d5a9c7224e8687754249bba67dd4cf.tar.xz
mlx4_core: Add link type autosensing
When a port's link is down (except to driver restart) and the port is configured for auto sensing, we try to sense port link type (Ethernet or InfiniBand) in order to determine how to initialize the port. If the port type needs to be changed, all mlx4 for the device interfaces are unregistered and then registered again with the new port types. Sensing is done with intervals of 3 seconds. Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/net/mlx4/eq.c')
-rw-r--r--drivers/net/mlx4/eq.c16
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/net/mlx4/eq.c b/drivers/net/mlx4/eq.c
index 2c19bff7cbab..8830dcb92ec8 100644
--- a/drivers/net/mlx4/eq.c
+++ b/drivers/net/mlx4/eq.c
@@ -163,6 +163,7 @@ static int mlx4_eq_int(struct mlx4_dev *dev, struct mlx4_eq *eq)
int cqn;
int eqes_found = 0;
int set_ci = 0;
+ int port;
while ((eqe = next_eqe_sw(eq))) {
/*
@@ -203,11 +204,16 @@ static int mlx4_eq_int(struct mlx4_dev *dev, struct mlx4_eq *eq)
break;
case MLX4_EVENT_TYPE_PORT_CHANGE:
- mlx4_dispatch_event(dev,
- eqe->subtype == MLX4_PORT_CHANGE_SUBTYPE_ACTIVE ?
- MLX4_DEV_EVENT_PORT_UP :
- MLX4_DEV_EVENT_PORT_DOWN,
- be32_to_cpu(eqe->event.port_change.port) >> 28);
+ port = be32_to_cpu(eqe->event.port_change.port) >> 28;
+ if (eqe->subtype == MLX4_PORT_CHANGE_SUBTYPE_DOWN) {
+ mlx4_dispatch_event(dev, MLX4_DEV_EVENT_PORT_DOWN,
+ port);
+ mlx4_priv(dev)->sense.do_sense_port[port] = 1;
+ } else {
+ mlx4_dispatch_event(dev, MLX4_DEV_EVENT_PORT_UP,
+ port);
+ mlx4_priv(dev)->sense.do_sense_port[port] = 0;
+ }
break;
case MLX4_EVENT_TYPE_CQ_ERROR: