linux-stable.git/net/ethtool/channels.c, branch linux-5.7.y

ethtool: fix spelling mistake "exceeeds" -> "exceeds"

2020-03-13T18:23:33+00:00

There are a couple of spelling mistakes in NL_SET_ERR_MSG_ATTR messages.
Fix these.

Signed-off-by: Colin Ian King 
Signed-off-by: David S. Miller

ethtool: add CHANNELS_NTF notification

2020-03-12T22:32:33+00:00

Send ETHTOOL_MSG_CHANNELS_NTF notification whenever channel counts of
a network device are modified using ETHTOOL_MSG_CHANNELS_SET netlink
message or ETHTOOL_SCHANNELS ioctl request.

Signed-off-by: Michal Kubecek 
Signed-off-by: David S. Miller

ethtool: set device channel counts with CHANNELS_SET request

2020-03-12T22:32:33+00:00

Implement CHANNELS_SET netlink request to set channel counts of a network
device. These are traditionally set with ETHTOOL_SCHANNELS ioctl request.

Like the ioctl implementation, the generic ethtool code checks if supplied
values do not exceed driver defined limits; if they do, first offending
attribute is reported using extack. Checks preventing removing channels
used for RX indirection table or zerocopy AF_XDP socket are also
implemented.

Move ethtool_get_max_rxfh_channel() helper into common.c so that it can be
used by both ioctl and netlink code.

v2:
  - fix netdev reference leak in error path (found by Jakub Kicinsky)

Signed-off-by: Michal Kubecek 
Reviewed-by: Jakub Kicinski 
Signed-off-by: David S. Miller

ethtool: provide channel counts with CHANNELS_GET request

2020-03-12T22:32:33+00:00

Implement CHANNELS_GET request to get channel counts of a network device.
These are traditionally available via ETHTOOL_GCHANNELS ioctl request.

Omit attributes for channel types which are not supported by driver or
device (zero reported for maximum).

v2: (all suggested by Jakub Kicinski)
  - minor cleanup in channels_prepare_data()
  - more descriptive channels_reply_size()
  - omit attributes with zero max count

Signed-off-by: Michal Kubecek 
Reviewed-by: Jakub Kicinski 
Signed-off-by: David S. Miller