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i40e: Extend ethtool RSS hooks for X722

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This patch adds another way to access the RSS keys and lut using the AQ
for X722 devices.

Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Anjali Singhai Jain 2015-12-22 14:25:04 -08:00 committed by Jeff Kirsher
parent 35dae51de3
commit 95a7378092
1 changed files with 52 additions and 1 deletions
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53
drivers/net/ethernet/intel/i40e/i40e_main.c
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@ -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
@ -8038,7 +8084,12 @@ 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)
{
return i40e_get_rss_reg(vsi, seed, lut, 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);
}
/**