mlx4_core: Multiple port type support

Multi-protocol adapters support different port types.  Each consumer
of mlx4_core queries for supported port types; in particular mlx4_ib
can no longer assume that all physical ports belong to it.  Port type
is configured through a sysfs interface.  When the type of a port is
changed, all mlx4 interfaces are unregistered, and then registered
again with the new port types.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/net/mlx4/fw.c b/drivers/net/mlx4/fw.c
index 8d402db9a03d..be09fdb79cb8 100644
--- a/drivers/net/mlx4/fw.c
+++ b/drivers/net/mlx4/fw.c
@@ -88,6 +88,7 @@ static void dump_dev_cap_flags(struct mlx4_dev *dev, u32 flags)
                 [ 8] = "P_Key violation counter",
                 [ 9] = "Q_Key violation counter",
                 [10] = "VMM",
+                [12] = "DPDP",
                 [16] = "MW support",
                 [17] = "APM support",
                 [18] = "Atomic ops support",
@@ -354,6 +355,7 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
                         dev_cap->max_pkeys[i]      = 1 << (field & 0xf);
                 }
         } else {
+#define QUERY_PORT_SUPPORTED_TYPE_OFFSET        0x00
 #define QUERY_PORT_MTU_OFFSET                   0x01
 #define QUERY_PORT_ETH_MTU_OFFSET               0x02
 #define QUERY_PORT_WIDTH_OFFSET                 0x06
@@ -368,6 +370,8 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
                         if (err)
                                 goto out;
 
+                        MLX4_GET(field, outbox, QUERY_PORT_SUPPORTED_TYPE_OFFSET);
+                        dev_cap->supported_port_types[i] = field & 3;
                         MLX4_GET(field, outbox, QUERY_PORT_MTU_OFFSET);
                         dev_cap->ib_mtu[i]         = field & 0xf;
                         MLX4_GET(field, outbox, QUERY_PORT_WIDTH_OFFSET);