When starting the device, the RSS table is set. For 8 queues, the RSS hash table would be like | 3,2,1,0,7,6,5,4 | 3,2,1,0,7,6,5,4 |... This patch adjusts this table to set entries sequentially. Then for 8 queues, the RSS table would be like | 0,1,2,3,4,5,6,7 | 0,1,2,3,4,5,6,7 |...
Signed-off-by: Xiaoyun Li <xiaoyun...@intel.com> --- drivers/net/i40e/i40e_ethdev.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c index 790ecc3..031eba0 100644 --- a/drivers/net/i40e/i40e_ethdev.c +++ b/drivers/net/i40e/i40e_ethdev.c @@ -8468,6 +8468,7 @@ i40e_pf_config_rss(struct i40e_pf *pf) { struct i40e_hw *hw = I40E_PF_TO_HW(pf); struct rte_eth_rss_conf rss_conf; + uint32_t size = hw->func_caps.rss_table_size; uint32_t i, lut = 0; uint16_t j, num; @@ -8489,13 +8490,17 @@ i40e_pf_config_rss(struct i40e_pf *pf) return -ENOTSUP; } - for (i = 0, j = 0; i < hw->func_caps.rss_table_size; i++, j++) { - if (j == num) - j = 0; + for (i = size - 1, j = (size - 1) % num;; i--, j--) { lut = (lut << 8) | (j & ((0x1 << - hw->func_caps.rss_table_entry_width) - 1)); - if ((i & 3) == 3) + hw->func_caps.rss_table_entry_width) - 1)); + + if (j == 0) + j = num; + + if ((i & 3) == 0) I40E_WRITE_REG(hw, I40E_PFQF_HLUT(i >> 2), lut); + if (i == 0) + break; } rss_conf = pf->dev_data->dev_conf.rx_adv_conf.rss_conf; -- 2.7.4