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net/mlx5: Consider PCI domain in search for next dev

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[ Upstream commit df7ddb2396cd162e64aaff9401be05e31e438961 ]

The PCI BDF is not unique. PCI domain must also be considered when
searching for the next physical device during lag setup. Example below:

mlx5_core 0000:01:00.0: MLX5E: StrdRq(1) RqSz(8) StrdSz(128) RxCqeCmprss(0)
mlx5_core 0000:01:00.1: MLX5E: StrdRq(1) RqSz(8) StrdSz(128) RxCqeCmprss(0)
mlx5_core 0001:01:00.0: MLX5E: StrdRq(1) RqSz(8) StrdSz(128) RxCqeCmprss(0)
mlx5_core 0001:01:00.1: MLX5E: StrdRq(1) RqSz(8) StrdSz(128) RxCqeCmprss(0)

Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Reviewed-by: Aviv Heller <avivh@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Daniel Jurgens 2018-08-27 09:09:46 -05:00 committed by Greg Kroah-Hartman
parent f36f3ebdf1
commit 34d54566ae
1 changed files with 4 additions and 3 deletions
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7
drivers/net/ethernet/mellanox/mlx5/core/dev.c
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@ -388,16 +388,17 @@ void mlx5_remove_dev_by_protocol(struct mlx5_core_dev *dev, int protocol)
}
}
static u16 mlx5_gen_pci_id(struct mlx5_core_dev *dev)
static u32 mlx5_gen_pci_id(struct mlx5_core_dev *dev)
{
return (u16)((dev->pdev->bus->number << 8) |
return (u32)((pci_domain_nr(dev->pdev->bus) << 16) |
(dev->pdev->bus->number << 8) |
PCI_SLOT(dev->pdev->devfn));
}
/* Must be called with intf_mutex held */
struct mlx5_core_dev *mlx5_get_next_phys_dev(struct mlx5_core_dev *dev)
{
u16 pci_id = mlx5_gen_pci_id(dev);
u32 pci_id = mlx5_gen_pci_id(dev);
struct mlx5_core_dev *res = NULL;
struct mlx5_core_dev *tmp_dev;
struct mlx5_priv *priv;