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/*
* Copyright (c) 2016, Mellanox Technologies. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <linux/module.h>
#include <linux/mlx5/vport.h>
#include "mlx5_ib.h"
static inline u32 mlx_to_net_policy(enum port_state_policy mlx_policy)
{
switch (mlx_policy) {
case MLX5_POLICY_DOWN:
return IFLA_VF_LINK_STATE_DISABLE;
case MLX5_POLICY_UP:
return IFLA_VF_LINK_STATE_ENABLE;
case MLX5_POLICY_FOLLOW:
return IFLA_VF_LINK_STATE_AUTO;
default:
return __IFLA_VF_LINK_STATE_MAX;
}
}
int mlx5_ib_get_vf_config(struct ib_device *device, int vf, u8 port,
struct ifla_vf_info *info)
{
struct mlx5_ib_dev *dev = to_mdev(device);
struct mlx5_core_dev *mdev = dev->mdev;
struct mlx5_hca_vport_context *rep;
int err;
rep = kzalloc(sizeof(*rep), GFP_KERNEL);
if (!rep)
return -ENOMEM;
err = mlx5_query_hca_vport_context(mdev, 1, 1, vf + 1, rep);
if (err) {
mlx5_ib_warn(dev, "failed to query port policy for vf %d (%d)\n",
vf, err);
goto free;
}
memset(info, 0, sizeof(*info));
info->linkstate = mlx_to_net_policy(rep->policy);
if (info->linkstate == __IFLA_VF_LINK_STATE_MAX)
err = -EINVAL;
free:
kfree(rep);
return err;
}
static inline enum port_state_policy net_to_mlx_policy(int policy)
{
switch (policy) {
case IFLA_VF_LINK_STATE_DISABLE:
return MLX5_POLICY_DOWN;
case IFLA_VF_LINK_STATE_ENABLE:
return MLX5_POLICY_UP;
case IFLA_VF_LINK_STATE_AUTO:
return MLX5_POLICY_FOLLOW;
default:
return MLX5_POLICY_INVALID;
}
}
int mlx5_ib_set_vf_link_state(struct ib_device *device, int vf,
u8 port, int state)
{
struct mlx5_ib_dev *dev = to_mdev(device);
struct mlx5_core_dev *mdev = dev->mdev;
struct mlx5_hca_vport_context *in;
struct mlx5_vf_context *vfs_ctx = mdev->priv.sriov.vfs_ctx;
int err;
in = kzalloc(sizeof(*in), GFP_KERNEL);
if (!in)
return -ENOMEM;
in->policy = net_to_mlx_policy(state);
if (in->policy == MLX5_POLICY_INVALID) {
err = -EINVAL;
goto out;
}
in->field_select = MLX5_HCA_VPORT_SEL_STATE_POLICY;
err = mlx5_core_modify_hca_vport_context(mdev, 1, 1, vf + 1, in);
if (!err)
vfs_ctx[vf].policy = in->policy;
out:
kfree(in);
return err;
}
int mlx5_ib_get_vf_stats(struct ib_device *device, int vf,
u8 port, struct ifla_vf_stats *stats)
{
int out_sz = MLX5_ST_SZ_BYTES(query_vport_counter_out);
struct mlx5_core_dev *mdev;
struct mlx5_ib_dev *dev;
void *out;
int err;
dev = to_mdev(device);
mdev = dev->mdev;
out = kzalloc(out_sz, GFP_KERNEL);
if (!out)
return -ENOMEM;
err = mlx5_core_query_vport_counter(mdev, true, vf, port, out, out_sz);
if (err)
goto ex;
stats->rx_packets = MLX5_GET64_PR(query_vport_counter_out, out, received_ib_unicast.packets);
stats->tx_packets = MLX5_GET64_PR(query_vport_counter_out, out, transmitted_ib_unicast.packets);
stats->rx_bytes = MLX5_GET64_PR(query_vport_counter_out, out, received_ib_unicast.octets);
stats->tx_bytes = MLX5_GET64_PR(query_vport_counter_out, out, transmitted_ib_unicast.octets);
stats->multicast = MLX5_GET64_PR(query_vport_counter_out, out, received_ib_multicast.packets);
ex:
kfree(out);
return err;
}
static int set_vf_node_guid(struct ib_device *device, int vf, u8 port, u64 guid)
{
struct mlx5_ib_dev *dev = to_mdev(device);
struct mlx5_core_dev *mdev = dev->mdev;
struct mlx5_hca_vport_context *in;
struct mlx5_vf_context *vfs_ctx = mdev->priv.sriov.vfs_ctx;
int err;
in = kzalloc(sizeof(*in), GFP_KERNEL);
if (!in)
return -ENOMEM;
in->field_select = MLX5_HCA_VPORT_SEL_NODE_GUID;
in->node_guid = guid;
err = mlx5_core_modify_hca_vport_context(mdev, 1, 1, vf + 1, in);
if (!err) {
vfs_ctx[vf].node_guid = guid;
vfs_ctx[vf].node_guid_valid = 1;
}
kfree(in);
return err;
}
static int set_vf_port_guid(struct ib_device *device, int vf, u8 port, u64 guid)
{
struct mlx5_ib_dev *dev = to_mdev(device);
struct mlx5_core_dev *mdev = dev->mdev;
struct mlx5_hca_vport_context *in;
struct mlx5_vf_context *vfs_ctx = mdev->priv.sriov.vfs_ctx;
int err;
in = kzalloc(sizeof(*in), GFP_KERNEL);
if (!in)
return -ENOMEM;
in->field_select = MLX5_HCA_VPORT_SEL_PORT_GUID;
in->port_guid = guid;
err = mlx5_core_modify_hca_vport_context(mdev, 1, 1, vf + 1, in);
if (!err) {
vfs_ctx[vf].port_guid = guid;
vfs_ctx[vf].port_guid_valid = 1;
}
kfree(in);
return err;
}
int mlx5_ib_set_vf_guid(struct ib_device *device, int vf, u8 port,
u64 guid, int type)
{
if (type == IFLA_VF_IB_NODE_GUID)
return set_vf_node_guid(device, vf, port, guid);
else if (type == IFLA_VF_IB_PORT_GUID)
return set_vf_port_guid(device, vf, port, guid);
return -EINVAL;
}
int mlx5_ib_get_vf_guid(struct ib_device *device, int vf, u8 port,
struct ifla_vf_guid *node_guid,
struct ifla_vf_guid *port_guid)
{
struct mlx5_ib_dev *dev = to_mdev(device);
struct mlx5_core_dev *mdev = dev->mdev;
struct mlx5_vf_context *vfs_ctx = mdev->priv.sriov.vfs_ctx;
node_guid->guid =
vfs_ctx[vf].node_guid_valid ? vfs_ctx[vf].node_guid : 0;
port_guid->guid =
vfs_ctx[vf].port_guid_valid ? vfs_ctx[vf].port_guid : 0;
return 0;
}
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