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net/ethtool: Introduce link_ksettings API for virtual network devices

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With the ethtool_virtdev_set_link_ksettings function in core/ethtool.c,
ibmveth, netvsc, and virtio now use the core's helper function.

Funtionality changes that pertain to ibmveth driver include:

  1. Changed the initial hardcoded link speed to 1GB.

  2. Added support for allowing a user to change the reported link
  speed via ethtool.

Functionality changes to the netvsc driver include:

  1. When netvsc_get_link_ksettings is called, it will defer to the VF
  device if it exists to pull accelerated networking values, otherwise
  pull default or user-defined values.

  2. Similarly, if netvsc_set_link_ksettings called and a VF device
  exists, the real values of speed and duplex are changed.

Signed-off-by: Cris Forno <cforno12@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Cris Forno
2020-02-28 14:12:05 -06:00
committed by David S. Miller
parent 70ae1e127b
commit 9aedc6e2f1
4 changed files with 51 additions and 85 deletions
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3
drivers/net/ethernet/ibm/ibmveth.h
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@@ -162,6 +162,9 @@ struct ibmveth_adapter {
u64 tx_send_failed;
u64 tx_large_packets;
u64 rx_large_packets;
/* Ethtool settings */
u8 duplex;
u32 speed;
};
/*