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authorNoa Osherovich <noaos@mellanox.com>2016-06-10 00:07:37 +0300
committerDavid S. Miller <davem@davemloft.net>2016-06-09 22:06:26 -0700
commit23898c763f4af6f5c80b0230b1ea788a0ce3cf73 (patch)
tree1ad21f9e3aeffb8d302f4e68dd729a078e9e20ff
parent25fff58cb24c8880090d8b8ef7746001a135e876 (diff)
downloadlinux-23898c763f4af6f5c80b0230b1ea788a0ce3cf73.tar.gz
net/mlx5: E-Switch, Modify node guid on vf set MAC
In RoCE, the RDMA-CM needs the node guid to establish connection between nodes. Today, the node guid exposed to mlx5 Ethernet VFs is zero, therefore RDMA-CM on the VF is broken. Whenever the administrator sets a MAC for a VF, derive the node guid from it and set it as well in the following way: MAC: e4:1d:2d:b3:f4:01 -> node_guid: e4:1d:2d:ff:fe:b3:f4:01 Fixes: 77256579c6b43 ('net/mlx5: E-Switch, Introduce Vport...') Signed-off-by: Noa Osherovich <noaos@mellanox.com> Signed-off-by: Majd Dibbiny <majd@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/eswitch.c23
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/vport.c38
-rw-r--r--include/linux/mlx5/mlx5_ifc.h9
-rw-r--r--include/linux/mlx5/vport.h2
4 files changed, 68 insertions, 4 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
index cfec20cffd26..9b1855b199a1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
@@ -1725,11 +1725,24 @@ void mlx5_eswitch_vport_event(struct mlx5_eswitch *esw, struct mlx5_eqe *eqe)
(esw && MLX5_CAP_GEN(esw->dev, vport_group_manager) && mlx5_core_is_pf(esw->dev))
#define LEGAL_VPORT(esw, vport) (vport >= 0 && vport < esw->total_vports)
+static void node_guid_gen_from_mac(u64 *node_guid, u8 mac[ETH_ALEN])
+{
+ ((u8 *)node_guid)[7] = mac[0];
+ ((u8 *)node_guid)[6] = mac[1];
+ ((u8 *)node_guid)[5] = mac[2];
+ ((u8 *)node_guid)[4] = 0xff;
+ ((u8 *)node_guid)[3] = 0xfe;
+ ((u8 *)node_guid)[2] = mac[3];
+ ((u8 *)node_guid)[1] = mac[4];
+ ((u8 *)node_guid)[0] = mac[5];
+}
+
int mlx5_eswitch_set_vport_mac(struct mlx5_eswitch *esw,
int vport, u8 mac[ETH_ALEN])
{
- int err = 0;
struct mlx5_vport *evport;
+ u64 node_guid;
+ int err = 0;
if (!ESW_ALLOWED(esw))
return -EPERM;
@@ -1753,11 +1766,17 @@ int mlx5_eswitch_set_vport_mac(struct mlx5_eswitch *esw,
return err;
}
+ node_guid_gen_from_mac(&node_guid, mac);
+ err = mlx5_modify_nic_vport_node_guid(esw->dev, vport, node_guid);
+ if (err)
+ mlx5_core_warn(esw->dev,
+ "Failed to set vport %d node guid, err = %d. RDMA_CM will not function properly for this VF.\n",
+ vport, err);
+
mutex_lock(&esw->state_lock);
if (evport->enabled)
err = esw_vport_ingress_config(esw, evport);
mutex_unlock(&esw->state_lock);
-
return err;
}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/vport.c b/drivers/net/ethernet/mellanox/mlx5/core/vport.c
index b69dadcfb897..daf44cd4c566 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/vport.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/vport.c
@@ -508,6 +508,44 @@ int mlx5_query_nic_vport_node_guid(struct mlx5_core_dev *mdev, u64 *node_guid)
}
EXPORT_SYMBOL_GPL(mlx5_query_nic_vport_node_guid);
+int mlx5_modify_nic_vport_node_guid(struct mlx5_core_dev *mdev,
+ u32 vport, u64 node_guid)
+{
+ int inlen = MLX5_ST_SZ_BYTES(modify_nic_vport_context_in);
+ void *nic_vport_context;
+ u8 *guid;
+ void *in;
+ int err;
+
+ if (!vport)
+ return -EINVAL;
+ if (!MLX5_CAP_GEN(mdev, vport_group_manager))
+ return -EACCES;
+ if (!MLX5_CAP_ESW(mdev, nic_vport_node_guid_modify))
+ return -ENOTSUPP;
+
+ in = mlx5_vzalloc(inlen);
+ if (!in)
+ return -ENOMEM;
+
+ MLX5_SET(modify_nic_vport_context_in, in,
+ field_select.node_guid, 1);
+ MLX5_SET(modify_nic_vport_context_in, in, vport_number, vport);
+ MLX5_SET(modify_nic_vport_context_in, in, other_vport, !!vport);
+
+ nic_vport_context = MLX5_ADDR_OF(modify_nic_vport_context_in,
+ in, nic_vport_context);
+ guid = MLX5_ADDR_OF(nic_vport_context, nic_vport_context,
+ node_guid);
+ MLX5_SET64(nic_vport_context, nic_vport_context, node_guid, node_guid);
+
+ err = mlx5_modify_nic_vport_context(mdev, in, inlen);
+
+ kvfree(in);
+
+ return err;
+}
+
int mlx5_query_nic_vport_qkey_viol_cntr(struct mlx5_core_dev *mdev,
u16 *qkey_viol_cntr)
{
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 986a615f623c..e955a2859009 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -501,7 +501,9 @@ struct mlx5_ifc_e_switch_cap_bits {
u8 vport_svlan_insert[0x1];
u8 vport_cvlan_insert_if_not_exist[0x1];
u8 vport_cvlan_insert_overwrite[0x1];
- u8 reserved_at_5[0x1b];
+ u8 reserved_at_5[0x19];
+ u8 nic_vport_node_guid_modify[0x1];
+ u8 nic_vport_port_guid_modify[0x1];
u8 reserved_at_20[0x7e0];
};
@@ -4584,7 +4586,10 @@ struct mlx5_ifc_modify_nic_vport_context_out_bits {
};
struct mlx5_ifc_modify_nic_vport_field_select_bits {
- u8 reserved_at_0[0x19];
+ u8 reserved_at_0[0x16];
+ u8 node_guid[0x1];
+ u8 port_guid[0x1];
+ u8 reserved_at_18[0x1];
u8 mtu[0x1];
u8 change_event[0x1];
u8 promisc[0x1];
diff --git a/include/linux/mlx5/vport.h b/include/linux/mlx5/vport.h
index 301da4a5e6bf..6c16c198f680 100644
--- a/include/linux/mlx5/vport.h
+++ b/include/linux/mlx5/vport.h
@@ -50,6 +50,8 @@ int mlx5_modify_nic_vport_mtu(struct mlx5_core_dev *mdev, u16 mtu);
int mlx5_query_nic_vport_system_image_guid(struct mlx5_core_dev *mdev,
u64 *system_image_guid);
int mlx5_query_nic_vport_node_guid(struct mlx5_core_dev *mdev, u64 *node_guid);
+int mlx5_modify_nic_vport_node_guid(struct mlx5_core_dev *mdev,
+ u32 vport, u64 node_guid);
int mlx5_query_nic_vport_qkey_viol_cntr(struct mlx5_core_dev *mdev,
u16 *qkey_viol_cntr);
int mlx5_query_hca_vport_gid(struct mlx5_core_dev *dev, u8 other_vport,