net/mlx5e: Fix ethtool hfunc configuration change
Changing RX hash function requires rearranging of RQT internal indexes,
the user isn't exposed to such changes and these changes do not affect
the user configured indirection table. Rebuild RQ table on hfunc change.
Fixes: bdfc028de1
("net/mlx5e: Fix ethtool RX hash func configuration change")
Signed-off-by: Aya Levin <ayal@mellanox.com>
Reviewed-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
parent
36d45fb9d2
commit
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@ -1173,7 +1173,8 @@ int mlx5e_set_rxfh(struct net_device *dev, const u32 *indir,
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struct mlx5e_priv *priv = netdev_priv(dev);
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struct mlx5e_rss_params *rss = &priv->rss_params;
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int inlen = MLX5_ST_SZ_BYTES(modify_tir_in);
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bool hash_changed = false;
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bool refresh_tirs = false;
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bool refresh_rqt = false;
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void *in;
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if ((hfunc != ETH_RSS_HASH_NO_CHANGE) &&
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@ -1189,36 +1190,38 @@ int mlx5e_set_rxfh(struct net_device *dev, const u32 *indir,
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if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != rss->hfunc) {
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rss->hfunc = hfunc;
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hash_changed = true;
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refresh_rqt = true;
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refresh_tirs = true;
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}
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if (indir) {
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memcpy(rss->indirection_rqt, indir,
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sizeof(rss->indirection_rqt));
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if (test_bit(MLX5E_STATE_OPENED, &priv->state)) {
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u32 rqtn = priv->indir_rqt.rqtn;
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struct mlx5e_redirect_rqt_param rrp = {
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.is_rss = true,
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{
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.rss = {
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.hfunc = rss->hfunc,
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.channels = &priv->channels,
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},
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},
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};
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mlx5e_redirect_rqt(priv, rqtn, MLX5E_INDIR_RQT_SIZE, rrp);
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}
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refresh_rqt = true;
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}
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if (key) {
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memcpy(rss->toeplitz_hash_key, key,
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sizeof(rss->toeplitz_hash_key));
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hash_changed = hash_changed || rss->hfunc == ETH_RSS_HASH_TOP;
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refresh_tirs = refresh_tirs || rss->hfunc == ETH_RSS_HASH_TOP;
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}
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if (hash_changed)
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if (refresh_rqt && test_bit(MLX5E_STATE_OPENED, &priv->state)) {
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struct mlx5e_redirect_rqt_param rrp = {
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.is_rss = true,
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{
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.rss = {
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.hfunc = rss->hfunc,
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.channels = &priv->channels,
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},
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},
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};
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u32 rqtn = priv->indir_rqt.rqtn;
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mlx5e_redirect_rqt(priv, rqtn, MLX5E_INDIR_RQT_SIZE, rrp);
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}
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if (refresh_tirs)
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mlx5e_modify_tirs_hash(priv, in);
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mutex_unlock(&priv->state_lock);
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