i40evf: add new fields to store user configuration of RSS
This patch adds new fields to i40e_vsi to store user configured
RSS config data and code to use it.
Change-ID: Ic5d3db8d9df52182b560248f8cdca9c5c7546879
Signed-off-by: Helin Zhang <helin.zhang@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c b/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c
index a520970..966863c 100644
--- a/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c
+++ b/drivers/net/ethernet/intel/i40evf/i40evf_ethtool.c
@@ -678,9 +678,7 @@
{
struct i40evf_adapter *adapter = netdev_priv(netdev);
struct i40e_vsi *vsi = &adapter->vsi;
- u8 seed_def[I40EVF_HKEY_ARRAY_SIZE];
- u8 *seed = NULL, *lut;
- int ret;
+ u8 *seed = NULL;
u16 i;
/* We do not allow change in unsupported parameters */
@@ -691,21 +689,28 @@
return 0;
if (key) {
- memcpy(seed_def, key, I40EVF_HKEY_ARRAY_SIZE);
- seed = seed_def;
+ 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;
}
- lut = kzalloc(I40EVF_HLUT_ARRAY_SIZE, GFP_KERNEL);
- if (!lut)
- return -ENOMEM;
+ 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++)
- lut[i] = (u8)(indir[i]);
+ vsi->rss_lut_user[i] = (u8)(indir[i]);
- ret = i40evf_config_rss(vsi, seed, lut, I40EVF_HLUT_ARRAY_SIZE);
- kfree(lut);
-
- return ret;
+ return i40evf_config_rss(vsi, seed, vsi->rss_lut_user,
+ I40EVF_HLUT_ARRAY_SIZE);
}
static const struct ethtool_ops i40evf_ethtool_ops = {