net/mlx4_core: Introduce nic_info new flag in QUERY_FUNC_CAP

Set nic_info field in QUERY_FUNC_CAP, which designates
supplementary NIC information is provided by the hypervisor.
When set, the following fields are valid: nic_num_rings,
nic_indirection_tbl_sz, cur_mac and phys_port_id.

Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 9 insertions, 3 deletions

diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c
index 58ca7de49328..bfe91aebea8e 100644
--- a/drivers/net/ethernet/mellanox/mlx4/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.c
@@ -217,10 +217,15 @@ int mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev *dev, int slave,
 
 #define QUERY_FUNC_CAP_FLAGS1_FORCE_MAC         0x40
 #define QUERY_FUNC_CAP_FLAGS1_FORCE_VLAN        0x80
+#define QUERY_FUNC_CAP_FLAGS1_NIC_INFO                  0x10
 
 #define QUERY_FUNC_CAP_FLAGS0_FORCE_PHY_WQE_GID 0x80
 
         if (vhcr->op_modifier == 1) {
+                /* Set nic_info bit to mark new fields support */
+                field  = QUERY_FUNC_CAP_FLAGS1_NIC_INFO;
+                MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_FLAGS1_OFFSET);
+
                 field = vhcr->in_modifier; /* phys-port = logical-port */
                 MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_PHYS_PORT_OFFSET);
 
@@ -385,15 +390,15 @@ int mlx4_QUERY_FUNC_CAP(struct mlx4_dev *dev, u32 gen_or_port,
                 goto out;
         }
 
+        MLX4_GET(func_cap->flags1, outbox, QUERY_FUNC_CAP_FLAGS1_OFFSET);
         if (dev->caps.port_type[gen_or_port] == MLX4_PORT_TYPE_ETH) {
-                MLX4_GET(field, outbox, QUERY_FUNC_CAP_FLAGS1_OFFSET);
-                if (field & QUERY_FUNC_CAP_FLAGS1_FORCE_VLAN) {
+                if (func_cap->flags1 & QUERY_FUNC_CAP_FLAGS1_OFFSET) {
                         mlx4_err(dev, "VLAN is enforced on this port\n");
                         err = -EPROTONOSUPPORT;
                         goto out;
                 }
 
-                if (field & QUERY_FUNC_CAP_FLAGS1_FORCE_MAC) {
+                if (func_cap->flags1 & QUERY_FUNC_CAP_FLAGS1_FORCE_MAC) {
                         mlx4_err(dev, "Force mac is enabled on this port\n");
                         err = -EPROTONOSUPPORT;
                         goto out;
diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.h b/drivers/net/ethernet/mellanox/mlx4/fw.h
index a0a368b7c939..9d952983b076 100644
--- a/drivers/net/ethernet/mellanox/mlx4/fw.h
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.h
@@ -140,6 +140,7 @@ struct mlx4_func_cap {
         u32     qp1_proxy_qpn;
         u8      physical_port;
         u8      port_flags;
+        u8      flags1;
 };
 
 struct mlx4_adapter {