eth: fbnic: support ring channel get and set while down

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Trivial implementation of ethtool channel get and set. Set is only
supported when device is closed, next patch will add code for
live reconfig.

Asymmetric configurations are supported (combined + extra Tx or Rx),
so are configurations with independent IRQs for Rx and Tx.
Having all 3 NAPI types (combined, Tx, Rx) is not supported.

We used to only call fbnic_reset_indir_tbl() during init.
Now that we call it after device had been register must
be careful not to override user config.

Link: https://patch.msgid.link/20241220025241.1522781-10-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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This commit is contained in:

Jakub Kicinski 2024-12-19 18:52:40 -08:00

parent 557d02238e

commit 3a481cc726

2 changed files with 67 additions and 0 deletions

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64

drivers/net/ethernet/meta/fbnic/fbnic_ethtool.c

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3

drivers/net/ethernet/meta/fbnic/fbnic_rpc.c

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