/**
* 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);
}
