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net/mlx4_en: Enable TX rate limit per VF

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Support granular QoS per VF, by implementing the ndo_set_vf_rate.

Enforce a rate limit per VF when called, and enabled only for VFs in
VST mode with user priority supported by the device.

We don't enforce VFs to be in VST mode at the moment of configuration,
but rather save the given rate limit and enforce it when the VF is
moved to VST with user priority which is supported (currently 0).

VST<->VGT or VST qos value state changes are disallowed when a rate
limit is configured. Minimum BW share is not supported yet.

Signed-off-by: Ido Shamay <idos@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Shamay
2015-04-02 16:31:16 +03:00
committed by David S. Miller
parent 08068cd568
commit cda373f484
3 changed files with 189 additions and 1 deletions
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2
include/linux/mlx4/cmd.h
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@@ -296,6 +296,8 @@ void mlx4_free_cmd_mailbox(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbo
u32 mlx4_comm_get_version(void);
int mlx4_set_vf_mac(struct mlx4_dev *dev, int port, int vf, u64 mac);
int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan, u8 qos);
int mlx4_set_vf_rate(struct mlx4_dev *dev, int port, int vf, int min_tx_rate,
int max_tx_rate);
int mlx4_set_vf_spoofchk(struct mlx4_dev *dev, int port, int vf, bool setting);
int mlx4_get_vf_config(struct mlx4_dev *dev, int port, int vf, struct ifla_vf_info *ivf);
int mlx4_set_vf_link_state(struct mlx4_dev *dev, int port, int vf, int link_state);