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RDMA/netdev: Hoist alloc_netdev_mqs out of the driver

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netdev has several interfaces that expect to call alloc_netdev_mqs from
the core code, with the driver only providing the arguments.  This is
incompatible with the rdma_netdev interface that returns the netdev
directly.

Thus re-organize the API used by ipoib so that the verbs core code calls
alloc_netdev_mqs for the driver. This is done by allowing the drivers to
provide the allocation parameters via a 'get_params' callback and then
initializing an allocated netdev as a second step.

Fixes: cd565b4b51 ("IB/IPoIB: Support acceleration options callbacks")
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Denis Drozdov <denisd@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Denis Drozdov
2018-08-14 14:08:51 +03:00
committed by Saeed Mahameed
parent a6deaa9959
commit f6a8a19bb1
6 changed files with 120 additions and 82 deletions
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23
drivers/infiniband/hw/mlx5/main.c
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@@ -5163,22 +5163,14 @@ done:
return num_counters;
}
static struct net_device*
mlx5_ib_alloc_rdma_netdev(struct ib_device *hca,
u8 port_num,
enum rdma_netdev_t type,
const char *name,
unsigned char name_assign_type,
void (*setup)(struct net_device *))
static int mlx5_ib_rn_get_params(struct ib_device *device, u8 port_num,
enum rdma_netdev_t type,
struct rdma_netdev_alloc_params *params)
{
struct net_device *netdev;
if (type != RDMA_NETDEV_IPOIB)
return ERR_PTR(-EOPNOTSUPP);
return -EOPNOTSUPP;
netdev = mlx5_rdma_netdev_alloc(to_mdev(hca)->mdev, hca,
name, setup);
return netdev;
return mlx5_rdma_rn_get_params(to_mdev(device)->mdev, device, params);
}
static void delay_drop_debugfs_cleanup(struct mlx5_ib_dev *dev)
@@ -5824,8 +5816,9 @@ int mlx5_ib_stage_caps_init(struct mlx5_ib_dev *dev)
dev->ib_dev.check_mr_status = mlx5_ib_check_mr_status;
dev->ib_dev.get_dev_fw_str = get_dev_fw_str;
dev->ib_dev.get_vector_affinity = mlx5_ib_get_vector_affinity;
if (MLX5_CAP_GEN(mdev, ipoib_enhanced_offloads))
dev->ib_dev.alloc_rdma_netdev = mlx5_ib_alloc_rdma_netdev;
if (MLX5_CAP_GEN(mdev, ipoib_enhanced_offloads) &&
IS_ENABLED(CONFIG_MLX5_CORE_IPOIB))
dev->ib_dev.rdma_netdev_get_params = mlx5_ib_rn_get_params;
if (mlx5_core_is_pf(mdev)) {
dev->ib_dev.get_vf_config = mlx5_ib_get_vf_config;