8c2d2b8771
Add an auxiliary virtual bus to model the mlx4 driver structure. The code is added along the current custom device management logic. Subsequent patches switch mlx4_en and mlx4_ib to the auxiliary bus and the old interface is then removed. Structure mlx4_priv gains a new adev dynamic array to keep track of its auxiliary devices. Access to the array is protected by the global mlx4_intf mutex. Functions mlx4_register_device() and mlx4_unregister_device() are updated to expose auxiliary devices on the bus in order to load mlx4_en and/or mlx4_ib. Functions mlx4_register_auxiliary_driver() and mlx4_unregister_auxiliary_driver() are added to substitute mlx4_register_interface() and mlx4_unregister_interface(), respectively. Function mlx4_do_bond() is adjusted to walk over the adev array and re-adds a specific auxiliary device if its driver sets the MLX4_INTFF_BONDING flag. Signed-off-by: Petr Pavlu <petr.pavlu@suse.com> Tested-by: Leon Romanovsky <leonro@nvidia.com> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Acked-by: Tariq Toukan <tariqt@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
50 lines
1.3 KiB
Text
50 lines
1.3 KiB
Text
# SPDX-License-Identifier: GPL-2.0-only
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#
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# Mellanox driver configuration
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#
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config MLX4_EN
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tristate "Mellanox Technologies 1/10/40Gbit Ethernet support"
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depends on PCI && NETDEVICES && ETHERNET && INET
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depends on PTP_1588_CLOCK_OPTIONAL
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select MLX4_CORE
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help
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This driver supports Mellanox Technologies ConnectX Ethernet
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devices.
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config MLX4_EN_DCB
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bool "Data Center Bridging (DCB) Support"
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default y
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depends on MLX4_EN && DCB
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help
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Say Y here if you want to use Data Center Bridging (DCB) in the
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driver.
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If set to N, will not be able to configure QoS and ratelimit attributes.
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This flag is depended on the kernel's DCB support.
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If unsure, set to Y
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config MLX4_CORE
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tristate
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depends on PCI
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select AUXILIARY_BUS
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select NET_DEVLINK
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default n
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config MLX4_DEBUG
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bool "Verbose debugging output" if (MLX4_CORE && EXPERT)
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depends on MLX4_CORE
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default y
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help
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This option causes debugging code to be compiled into the
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mlx4_core driver. The output can be turned on via the
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debug_level module parameter (which can also be set after
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the driver is loaded through sysfs).
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config MLX4_CORE_GEN2
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bool "Support for old gen2 Mellanox PCI IDs" if (MLX4_CORE)
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depends on MLX4_CORE
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default y
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help
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Say Y here if you want to use old gen2 Mellanox devices in the
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driver.
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