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net/mlx4: Use Kconfig flag to remove support of old gen2 Mellanox devices 

Since Mellanox focus is on newer adapters, we would like to have the
ability to disable the support for old gen2 adapters.

This can be done by turning off the MLX4_CORE_GEN2 Kconfig flag.
We keep it turned on by default.

Signed-off-by: Slava Shwartsman <slavash@mellanox.com>
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Slava Shwartsman 2017-11-10 09:10:29 +02:00 committed by David S. Miller
parent 0642840b8b
commit a1b8714593
2 changed files with 10 additions and 0 deletions
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8
drivers/net/ethernet/mellanox/mlx4/Kconfig
View File

@ -38,3 +38,11 @@ config MLX4_DEBUG
mlx4_core driver. The output can be turned on via the
debug_level module parameter (which can also be set after
the driver is loaded through sysfs).
config MLX4_CORE_GEN2
bool "Support for old gen2 Mellanox PCI IDs" if (MLX4_CORE)
depends on MLX4_CORE
default y
---help---
Say Y here if you want to use old gen2 Mellanox devices in the
driver.

2
drivers/net/ethernet/mellanox/mlx4/main.c
View File

@ -4066,6 +4066,7 @@ int mlx4_restart_one(struct pci_dev *pdev)
#define MLX_GN(id) { PCI_VDEVICE(MELLANOX, id), 0 }
static const struct pci_device_id mlx4_pci_table[] = {
#ifdef CONFIG_MLX4_CORE_GEN2
/* MT25408 "Hermon" */
MLX_SP(PCI_DEVICE_ID_MELLANOX_HERMON_SDR), /* SDR */
MLX_SP(PCI_DEVICE_ID_MELLANOX_HERMON_DDR), /* DDR */
@ -4085,6 +4086,7 @@ static const struct pci_device_id mlx4_pci_table[] = {
MLX_SP(PCI_DEVICE_ID_MELLANOX_CONNECTX2),
/* MT25400 Family [ConnectX-2] */
MLX_VF(0x1002), /* Virtual Function */
#endif /* CONFIG_MLX4_CORE_GEN2 */
/* MT27500 Family [ConnectX-3] */
MLX_GN(PCI_DEVICE_ID_MELLANOX_CONNECTX3),
MLX_VF(0x1004), /* Virtual Function */