Commit 95a73780 authored by Anjali Singhai Jain's avatar Anjali Singhai Jain Committed by Jeff Kirsher

i40e: Extend ethtool RSS hooks for X722

This patch adds another way to access the RSS keys and lut using the AQ
for X722 devices.
Signed-off-by: default avatarAnjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: default avatarAndrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent 35dae51d
......@@ -7936,6 +7936,52 @@ static int i40e_vsi_config_rss(struct i40e_vsi *vsi)
return ret;
}
/**
* i40e_get_rss_aq - Get RSS keys and lut by using AQ commands
* @vsi: Pointer to vsi structure
* @seed: Buffter to store the hash keys
* @lut: Buffer to store the lookup table entries
* @lut_size: Size of buffer to store the lookup table entries
*
* Return 0 on success, negative on failure
*/
static int i40e_get_rss_aq(struct i40e_vsi *vsi, const u8 *seed,
u8 *lut, u16 lut_size)
{
struct i40e_pf *pf = vsi->back;
struct i40e_hw *hw = &pf->hw;
int ret = 0;
if (seed) {
ret = i40e_aq_get_rss_key(hw, vsi->id,
(struct i40e_aqc_get_set_rss_key_data *)seed);
if (ret) {
dev_info(&pf->pdev->dev,
"Cannot get RSS key, err %s aq_err %s\n",
i40e_stat_str(&pf->hw, ret),
i40e_aq_str(&pf->hw,
pf->hw.aq.asq_last_status));
return ret;
}
}
if (lut) {
bool pf_lut = vsi->type == I40E_VSI_MAIN ? true : false;
ret = i40e_aq_get_rss_lut(hw, vsi->id, pf_lut, lut, lut_size);
if (ret) {
dev_info(&pf->pdev->dev,
"Cannot get RSS lut, err %s aq_err %s\n",
i40e_stat_str(&pf->hw, ret),
i40e_aq_str(&pf->hw,
pf->hw.aq.asq_last_status));
return ret;
}
}
return ret;
}
/**
* i40e_config_rss_reg - Configure RSS keys and lut by writing registers
* @vsi: Pointer to vsi structure
......@@ -8038,6 +8084,11 @@ int i40e_config_rss(struct i40e_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size)
*/
int i40e_get_rss(struct i40e_vsi *vsi, u8 *seed, u8 *lut, u16 lut_size)
{
struct i40e_pf *pf = vsi->back;
if (pf->flags & I40E_FLAG_RSS_AQ_CAPABLE)
return i40e_get_rss_aq(vsi, seed, lut, lut_size);
else
return i40e_get_rss_reg(vsi, seed, lut, lut_size);
}
......
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