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authorJack Morgenstein <jackm@dev.mellanox.co.il>2008-11-28 21:29:46 -0800
committerRoland Dreier <rolandd@cisco.com>2008-11-28 21:29:46 -0800
commit9a5aa622dd4cd22b5e0fe83e4a9c0c768d4e2dea (patch)
tree95e975a4959a890bd1050645b04488272aa4643c /drivers/net/mlx4/main.c
parent4ffaf869c7780bbdfc11291e5fd4b61dde662b1c (diff)
mlx4_core: Save/restore default port IB capability mask
Commit 7ff93f8b ("mlx4_core: Multiple port type support") introduced support for different port types. As part of that support, SET_PORT is invoked to set the port type during driver startup. However, as a side-effect, for IB ports the invocation of this command also sets the port's capability mask to zero (losing the default value set by FW). To fix this, get the default ib port capabilities (via a MAD_IFC Port Info query) during driver startup, and save them for use in the mlx4_SET_PORT command when setting the port-type to Infiniband. This patch fixes problems with subnet manager (SM) failover such as <https://bugs.openfabrics.org/show_bug.cgi?id=1183>, which occurred because the IsTrapSupported bit in the capability mask was zeroed. Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/net/mlx4/main.c')
-rw-r--r--drivers/net/mlx4/main.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c
index 468921b8f4b6..90a0281d15ea 100644
--- a/drivers/net/mlx4/main.c
+++ b/drivers/net/mlx4/main.c
@@ -753,6 +753,7 @@ static int mlx4_setup_hca(struct mlx4_dev *dev)
struct mlx4_priv *priv = mlx4_priv(dev);
int err;
int port;
+ __be32 ib_port_default_caps;
err = mlx4_init_uar_table(dev);
if (err) {
@@ -852,6 +853,13 @@ static int mlx4_setup_hca(struct mlx4_dev *dev)
}
for (port = 1; port <= dev->caps.num_ports; port++) {
+ ib_port_default_caps = 0;
+ err = mlx4_get_port_ib_caps(dev, port, &ib_port_default_caps);
+ if (err)
+ mlx4_warn(dev, "failed to get port %d default "
+ "ib capabilities (%d). Continuing with "
+ "caps = 0\n", port, err);
+ dev->caps.ib_port_def_cap[port] = ib_port_default_caps;
err = mlx4_SET_PORT(dev, port);
if (err) {
mlx4_err(dev, "Failed to set port %d, aborting\n",