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IB/mlx5: Extend query_device/port to support RoCE

Browse source 
Using the vport access functions to retrieve the Ethernet
specific information and return this information in
ib_query_device and ib_query_port.

Signed-off-by: Achiad Shochat <achiad@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Achiad Shochat 2015-12-23 18:47:21 +02:00 committed by Doug Ledford
parent 9efa752545
commit 3f89a643eb
2 changed files with 69 additions and 13 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

75
drivers/infiniband/hw/mlx5/main.c
View file

@ -40,6 +40,7 @@
#include <linux/io-mapping.h>
#include <linux/sched.h>
#include <rdma/ib_user_verbs.h>
#include <rdma/ib_addr.h>
#include <linux/mlx5/vport.h>
#include <rdma/ib_smi.h>
#include <rdma/ib_umem.h>
@ -120,6 +121,50 @@ static struct net_device *mlx5_ib_get_netdev(struct ib_device *device,
return ndev;
}
static int mlx5_query_port_roce(struct ib_device *device, u8 port_num,
struct ib_port_attr *props)
{
struct mlx5_ib_dev *dev = to_mdev(device);
struct net_device *ndev;
enum ib_mtu ndev_ib_mtu;
memset(props, 0, sizeof(*props));
props->port_cap_flags |= IB_PORT_CM_SUP;
props->port_cap_flags |= IB_PORT_IP_BASED_GIDS;
props->gid_tbl_len = MLX5_CAP_ROCE(dev->mdev,
roce_address_table_size);
props->max_mtu = IB_MTU_4096;
props->max_msg_sz = 1 << MLX5_CAP_GEN(dev->mdev, log_max_msg);
props->pkey_tbl_len = 1;
props->state = IB_PORT_DOWN;
props->phys_state = 3;
mlx5_query_nic_vport_qkey_viol_cntr(dev->mdev,
(u16 *)&props->qkey_viol_cntr);
ndev = mlx5_ib_get_netdev(device, port_num);
if (!ndev)
return 0;
if (netif_running(ndev) && netif_carrier_ok(ndev)) {
props->state = IB_PORT_ACTIVE;
props->phys_state = 5;
}
ndev_ib_mtu = iboe_get_mtu(ndev->mtu);
dev_put(ndev);
props->active_mtu = min(props->max_mtu, ndev_ib_mtu);
props->active_width = IB_WIDTH_4X; /* TODO */
props->active_speed = IB_SPEED_QDR; /* TODO */
return 0;
}
static int mlx5_use_mad_ifc(struct mlx5_ib_dev *dev)
{
return !dev->mdev->issi;
@ -158,13 +203,21 @@ static int mlx5_query_system_image_guid(struct ib_device *ibdev,
case MLX5_VPORT_ACCESS_METHOD_HCA:
err = mlx5_query_hca_vport_system_image_guid(mdev, &tmp);
if (!err)
*sys_image_guid = cpu_to_be64(tmp);
return err;
break;
case MLX5_VPORT_ACCESS_METHOD_NIC:
err = mlx5_query_nic_vport_system_image_guid(mdev, &tmp);
break;
default:
return -EINVAL;
}
if (!err)
*sys_image_guid = cpu_to_be64(tmp);
return err;
}
static int mlx5_query_max_pkeys(struct ib_device *ibdev,
@ -218,13 +271,20 @@ static int mlx5_query_node_guid(struct mlx5_ib_dev *dev,
case MLX5_VPORT_ACCESS_METHOD_HCA:
err = mlx5_query_hca_vport_node_guid(dev->mdev, &tmp);
if (!err)
*node_guid = cpu_to_be64(tmp);
return err;
break;
case MLX5_VPORT_ACCESS_METHOD_NIC:
err = mlx5_query_nic_vport_node_guid(dev->mdev, &tmp);
break;
default:
return -EINVAL;
}
if (!err)
*node_guid = cpu_to_be64(tmp);
return err;
}
struct mlx5_reg_node_desc {
@ -522,6 +582,9 @@ int mlx5_ib_query_port(struct ib_device *ibdev, u8 port,
case MLX5_VPORT_ACCESS_METHOD_HCA:
return mlx5_query_hca_port(ibdev, port, props);
case MLX5_VPORT_ACCESS_METHOD_NIC:
return mlx5_query_port_roce(ibdev, port, props);
default:
return -EINVAL;
}

7
include/linux/mlx5/driver.h
View file

@ -632,13 +632,6 @@ extern struct workqueue_struct *mlx5_core_wq;
.struct_offset_bytes = offsetof(struct ib_unpacked_ ## header, field), \
.struct_size_bytes = sizeof((struct ib_unpacked_ ## header *)0)->field
struct ib_field {
size_t struct_offset_bytes;
size_t struct_size_bytes;
int offset_bits;
int size_bits;
};
static inline struct mlx5_core_dev *pci2mlx5_core_dev(struct pci_dev *pdev)
{
return pci_get_drvdata(pdev);