mlx4: Implement devlink interface

Implement newly introduced devlink interface. Add devlink port instances
for every port and set the port types accordingly.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
v2->v3:
-add dev param to devlink_register (api change)
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2016-02-26 17:32:24 +01:00 committed by David S. Miller
parent bfcd3a4661
commit 09d4d087cd
6 changed files with 61 additions and 14 deletions

View File

@ -41,6 +41,7 @@
#include <linux/if_vlan.h>
#include <net/ipv6.h>
#include <net/addrconf.h>
#include <net/devlink.h>
#include <rdma/ib_smi.h>
#include <rdma/ib_user_verbs.h>
@ -2519,6 +2520,9 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
}
ibdev->ib_active = true;
mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
devlink_port_type_ib_set(mlx4_get_devlink_port(dev, i),
&ibdev->ib_dev);
if (mlx4_is_mfunc(ibdev->dev))
init_pkeys(ibdev);
@ -2643,7 +2647,10 @@ static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
{
struct mlx4_ib_dev *ibdev = ibdev_ptr;
int p;
int i;
mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
devlink_port_type_clear(mlx4_get_devlink_port(dev, i));
ibdev->ib_active = false;
flush_workqueue(wq);

View File

@ -40,6 +40,7 @@
#include <net/ip.h>
#include <net/busy_poll.h>
#include <net/vxlan.h>
#include <net/devlink.h>
#include <linux/mlx4/driver.h>
#include <linux/mlx4/device.h>
@ -2033,8 +2034,11 @@ void mlx4_en_destroy_netdev(struct net_device *dev)
en_dbg(DRV, priv, "Destroying netdev on port:%d\n", priv->port);
/* Unregister device - this will close the port if it was up */
if (priv->registered)
if (priv->registered) {
devlink_port_type_clear(mlx4_get_devlink_port(mdev->dev,
priv->port));
unregister_netdev(dev);
}
if (priv->allocated)
mlx4_free_hwq_res(mdev->dev, &priv->res, MLX4_EN_PAGE_SIZE);
@ -3051,6 +3055,8 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
}
priv->registered = 1;
devlink_port_type_eth_set(mlx4_get_devlink_port(mdev->dev, priv->port),
dev);
return 0;

View File

@ -34,6 +34,7 @@
#include <linux/slab.h>
#include <linux/export.h>
#include <linux/errno.h>
#include <net/devlink.h>
#include "mlx4.h"
@ -249,3 +250,11 @@ void *mlx4_get_protocol_dev(struct mlx4_dev *dev, enum mlx4_protocol proto, int
return result;
}
EXPORT_SYMBOL_GPL(mlx4_get_protocol_dev);
struct devlink_port *mlx4_get_devlink_port(struct mlx4_dev *dev, int port)
{
struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
return &info->devlink_port;
}
EXPORT_SYMBOL_GPL(mlx4_get_devlink_port);

View File

@ -42,6 +42,7 @@
#include <linux/io-mapping.h>
#include <linux/delay.h>
#include <linux/kmod.h>
#include <net/devlink.h>
#include <linux/mlx4/device.h>
#include <linux/mlx4/doorbell.h>
@ -2881,8 +2882,13 @@ no_msi:
static int mlx4_init_port_info(struct mlx4_dev *dev, int port)
{
struct devlink *devlink = priv_to_devlink(mlx4_priv(dev));
struct mlx4_port_info *info = &mlx4_priv(dev)->port[port];
int err = 0;
int err;
err = devlink_port_register(devlink, &info->devlink_port, port);
if (err)
return err;
info->dev = dev;
info->port = port;
@ -2907,6 +2913,7 @@ static int mlx4_init_port_info(struct mlx4_dev *dev, int port)
err = device_create_file(&dev->persist->pdev->dev, &info->port_attr);
if (err) {
mlx4_err(dev, "Failed to create file for port %d\n", port);
devlink_port_unregister(&info->devlink_port);
info->port = -1;
}
@ -3680,21 +3687,23 @@ err_disable_pdev:
static int mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
{
struct devlink *devlink;
struct mlx4_priv *priv;
struct mlx4_dev *dev;
int ret;
printk_once(KERN_INFO "%s", mlx4_version);
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
if (!priv)
devlink = devlink_alloc(NULL, sizeof(*priv));
if (!devlink)
return -ENOMEM;
priv = devlink_priv(devlink);
dev = &priv->dev;
dev->persist = kzalloc(sizeof(*dev->persist), GFP_KERNEL);
if (!dev->persist) {
kfree(priv);
return -ENOMEM;
ret = -ENOMEM;
goto err_devlink_free;
}
dev->persist->pdev = pdev;
dev->persist->dev = dev;
@ -3703,14 +3712,23 @@ static int mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
mutex_init(&dev->persist->device_state_mutex);
mutex_init(&dev->persist->interface_state_mutex);
ret = __mlx4_init_one(pdev, id->driver_data, priv);
if (ret) {
kfree(dev->persist);
kfree(priv);
} else {
pci_save_state(pdev);
}
ret = devlink_register(devlink, &pdev->dev);
if (ret)
goto err_persist_free;
ret = __mlx4_init_one(pdev, id->driver_data, priv);
if (ret)
goto err_devlink_unregister;
pci_save_state(pdev);
return 0;
err_devlink_unregister:
devlink_unregister(devlink);
err_persist_free:
kfree(dev->persist);
err_devlink_free:
devlink_free(devlink);
return ret;
}
@ -3811,6 +3829,7 @@ static void mlx4_remove_one(struct pci_dev *pdev)
struct mlx4_dev_persistent *persist = pci_get_drvdata(pdev);
struct mlx4_dev *dev = persist->dev;
struct mlx4_priv *priv = mlx4_priv(dev);
struct devlink *devlink = priv_to_devlink(priv);
int active_vfs = 0;
mutex_lock(&persist->interface_state_mutex);
@ -3841,8 +3860,9 @@ static void mlx4_remove_one(struct pci_dev *pdev)
pci_release_regions(pdev);
pci_disable_device(pdev);
devlink_unregister(devlink);
kfree(dev->persist);
kfree(priv);
devlink_free(devlink);
pci_set_drvdata(pdev, NULL);
}

View File

@ -45,6 +45,7 @@
#include <linux/workqueue.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <net/devlink.h>
#include <linux/mlx4/device.h>
#include <linux/mlx4/driver.h>
@ -828,6 +829,7 @@ struct mlx4_port_info {
struct mlx4_roce_gid_table gid_table;
int base_qpn;
struct cpu_rmap *rmap;
struct devlink_port devlink_port;
};
struct mlx4_sense {

View File

@ -33,6 +33,7 @@
#ifndef MLX4_DRIVER_H
#define MLX4_DRIVER_H
#include <net/devlink.h>
#include <linux/mlx4/device.h>
struct mlx4_dev;
@ -89,6 +90,8 @@ int mlx4_port_map_set(struct mlx4_dev *dev, struct mlx4_port_map *v2p);
void *mlx4_get_protocol_dev(struct mlx4_dev *dev, enum mlx4_protocol proto, int port);
struct devlink_port *mlx4_get_devlink_port(struct mlx4_dev *dev, int port);
static inline u64 mlx4_mac_to_u64(u8 *addr)
{
u64 mac = 0;