diff options
| author | Kohei Enju <kohei@enjuk.jp> | 2026-01-31 16:29:38 +0000 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2026-07-01 13:34:29 -0700 |
| commit | 3fc4c1ee5f843255fd884dabacdddb045b3db9e2 (patch) | |
| tree | 8b3e744ac894cdd706e5afa9522afdd3dc947f6a | |
| parent | f243be8edeabac0b2ab3ccf27741a17c8129e253 (diff) | |
igc: allow configuring RSS key via ethtool set_rxfh
Change igc_ethtool_set_rxfh() to accept and save a userspace-provided
RSS key. When a key is provided, store it in the adapter and write the
RSSRK registers accordingly.
This can be tested using `ethtool -X <dev> hkey <key>`.
Signed-off-by: Kohei Enju <kohei@enjuk.jp>
Reviewed-by: Simon Horman <horms@kernel.org>
Tested-by: Avigail Dahan <avigailx.dahan@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
| -rw-r--r-- | drivers/net/ethernet/intel/igc/igc_ethtool.c | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/drivers/net/ethernet/intel/igc/igc_ethtool.c b/drivers/net/ethernet/intel/igc/igc_ethtool.c index 0e76ffe7be65..fbba3e84673a 100644 --- a/drivers/net/ethernet/intel/igc/igc_ethtool.c +++ b/drivers/net/ethernet/intel/igc/igc_ethtool.c @@ -1539,24 +1539,28 @@ static int igc_ethtool_set_rxfh(struct net_device *netdev, int i; /* We do not allow change in unsupported parameters */ - if (rxfh->key || - (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE && - rxfh->hfunc != ETH_RSS_HASH_TOP)) + if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE && + rxfh->hfunc != ETH_RSS_HASH_TOP) return -EOPNOTSUPP; - if (!rxfh->indir) - return 0; - num_queues = adapter->rss_queues; + if (rxfh->indir) { + num_queues = adapter->rss_queues; - /* Verify user input. */ - for (i = 0; i < IGC_RETA_SIZE; i++) - if (rxfh->indir[i] >= num_queues) - return -EINVAL; + /* Verify user input. */ + for (i = 0; i < IGC_RETA_SIZE; i++) + if (rxfh->indir[i] >= num_queues) + return -EINVAL; - for (i = 0; i < IGC_RETA_SIZE; i++) - adapter->rss_indir_tbl[i] = rxfh->indir[i]; + for (i = 0; i < IGC_RETA_SIZE; i++) + adapter->rss_indir_tbl[i] = rxfh->indir[i]; - igc_write_rss_indir_tbl(adapter); + igc_write_rss_indir_tbl(adapter); + } + + if (rxfh->key) { + memcpy(adapter->rss_key, rxfh->key, sizeof(adapter->rss_key)); + igc_write_rss_key(adapter); + } return 0; } |