/** * i40evf_set_rxfh - set the rx flow hash indirection table * @netdev: network interface device structure * @indir: indirection table * @key: hash key * * Returns -EINVAL if the table specifies an inavlid queue id, otherwise * returns 0 after programming the table. **/ static int i40evf_set_rxfh(struct net_device *netdev, const u32 *indir, const u8 *key, const u8 hfunc) { struct i40evf_adapter *adapter = netdev_priv(netdev); struct i40e_vsi *vsi = &adapter->vsi; u8 *seed = NULL; u16 i; /* We do not allow change in unsupported parameters */ if (key || (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)) return -EOPNOTSUPP; if (!indir) return 0; if (key) { if (!vsi->rss_hkey_user) { vsi->rss_hkey_user = kzalloc(I40EVF_HKEY_ARRAY_SIZE, GFP_KERNEL); if (!vsi->rss_hkey_user) return -ENOMEM; } memcpy(vsi->rss_hkey_user, key, I40EVF_HKEY_ARRAY_SIZE); seed = vsi->rss_hkey_user; } if (!vsi->rss_lut_user) { vsi->rss_lut_user = kzalloc(I40EVF_HLUT_ARRAY_SIZE, GFP_KERNEL); if (!vsi->rss_lut_user) return -ENOMEM; } /* Each 32 bits pointed by 'indir' is stored with a lut entry */ for (i = 0; i < I40EVF_HLUT_ARRAY_SIZE; i++) vsi->rss_lut_user[i] = (u8)(indir[i]); return i40evf_config_rss(vsi, seed, vsi->rss_lut_user, I40EVF_HLUT_ARRAY_SIZE); }
/** * i40evf_set_rxfh - set the rx flow hash indirection table * @netdev: network interface device structure * @indir: indirection table * @key: hash key * * Returns -EINVAL if the table specifies an inavlid queue id, otherwise * returns 0 after programming the table. **/ static int i40evf_set_rxfh(struct net_device *netdev, const u32 *indir, const u8 *key, const u8 hfunc) { struct i40evf_adapter *adapter = netdev_priv(netdev); u16 i; /* We do not allow change in unsupported parameters */ if (key || (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)) return -EOPNOTSUPP; if (!indir) return 0; if (key) { memcpy(adapter->rss_key, key, adapter->rss_key_size); } /* Each 32 bits pointed by 'indir' is stored with a lut entry */ for (i = 0; i < adapter->rss_lut_size; i++) adapter->rss_lut[i] = (u8)(indir[i]); return i40evf_config_rss(adapter); }