diff options
| author | Maher Sanalla <msanalla@nvidia.com> | 2024-05-22 22:26:52 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-06-12 12:03:54 +0300 |
| commit | 666e19a24706043d9e52ff35c0cf680c512466a2 (patch) | |
| tree | 57f72c29583bf914a8b56fcf41f5c955d15c88ab /drivers/net | |
| parent | 25222a9899e5f516f4a01ee609c96848981287e7 (diff) | |
| download | linux-666e19a24706043d9e52ff35c0cf680c512466a2.tar.xz | |
net/mlx5: Lag, do bond only if slaves agree on roce state
[ Upstream commit 51ef9305b8f40946d65c40368ffb4c14636d369a ]
Currently, the driver does not enforce that lag bond slaves must have
matching roce capabilities. Yet, in mlx5_do_bond(), the driver attempts
to enable roce on all vports of the bond slaves, causing the following
syndrome when one slave has no roce fw support:
mlx5_cmd_out_err:809:(pid 25427): MODIFY_NIC_VPORT_CONTEXT(0×755) op_mod(0×0)
failed, status bad parameter(0×3), syndrome (0xc1f678), err(-22)
Thus, create HW lag only if bond's slaves agree on roce state,
either all slaves have roce support resulting in a roce lag bond,
or none do, resulting in a raw eth bond.
Fixes: 7907f23adc18 ("net/mlx5: Implement RoCE LAG feature")
Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx5/core/lag/lag.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag/lag.c b/drivers/net/ethernet/mellanox/mlx5/core/lag/lag.c index 01c0e1ee918d..a283d8ae466b 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/lag/lag.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/lag/lag.c @@ -696,6 +696,7 @@ static bool mlx5_lag_check_prereq(struct mlx5_lag *ldev) struct mlx5_core_dev *dev; u8 mode; #endif + bool roce_support; int i; for (i = 0; i < ldev->ports; i++) @@ -722,6 +723,11 @@ static bool mlx5_lag_check_prereq(struct mlx5_lag *ldev) if (mlx5_sriov_is_enabled(ldev->pf[i].dev)) return false; #endif + roce_support = mlx5_get_roce_state(ldev->pf[MLX5_LAG_P1].dev); + for (i = 1; i < ldev->ports; i++) + if (mlx5_get_roce_state(ldev->pf[i].dev) != roce_support) + return false; + return true; } @@ -884,8 +890,10 @@ static void mlx5_do_bond(struct mlx5_lag *ldev) } else if (roce_lag) { dev0->priv.flags &= ~MLX5_PRIV_FLAGS_DISABLE_IB_ADEV; mlx5_rescan_drivers_locked(dev0); - for (i = 1; i < ldev->ports; i++) - mlx5_nic_vport_enable_roce(ldev->pf[i].dev); + for (i = 1; i < ldev->ports; i++) { + if (mlx5_get_roce_state(ldev->pf[i].dev)) + mlx5_nic_vport_enable_roce(ldev->pf[i].dev); + } } else if (shared_fdb) { dev0->priv.flags &= ~MLX5_PRIV_FLAGS_DISABLE_IB_ADEV; mlx5_rescan_drivers_locked(dev0); |