[dpdk-dev] [PATCH 09/24] net/i40e: restore RSS hash info

[Beilei Xing]

Add support of restoring RSS hash info, include looup table
and RSS configuration.

Signed-off-by: Beilei Xing <beilei.xing at intel.com>
---
 drivers/net/i40e/i40e_ethdev.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index a47d141..997e2fe 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -487,6 +487,7 @@ static int i40e_sw_tunnel_filter_del(struct i40e_pf *pf,
 static void i40e_ethertype_filter_restore(struct i40e_pf *pf);
 static void i40e_macvlan_filter_restore(struct i40e_pf *pf);
 static void i40e_tunnel_filter_restore(struct i40e_pf *pf);
+static void i40e_rss_hash_restore(struct i40e_pf *pf);
 static void i40e_filter_restore(struct i40e_pf *pf);
 
 static const struct rte_pci_id pci_id_i40e_map[] = {
@@ -10197,6 +10198,22 @@ i40e_tunnel_filter_restore(struct i40e_pf *pf)
 	}
 }
 
+/* Restore hash filter */
+static void
+i40e_rss_hash_restore(struct i40e_pf *pf)
+{
+	struct i40e_hw *hw = I40E_PF_TO_HW(pf);
+	uint16_t reta_size = hw->func_caps.rss_table_size;
+
+	if (pf->hash.reta) {
+		/* Restore lut to HW */
+		i40e_set_rss_lut(pf->main_vsi, pf->hash.reta, reta_size);
+
+		/* Restore RSS configuration to HW */
+		i40e_hw_rss_hash_set(pf, &pf->hash.rss_conf);
+	}
+}
+
 static void
 i40e_filter_restore(struct i40e_pf *pf)
 {
@@ -10204,4 +10221,5 @@ i40e_filter_restore(struct i40e_pf *pf)
 	i40e_macvlan_filter_restore(pf);
 	i40e_tunnel_filter_restore(pf);
 	i40e_fdir_filter_restore(pf);
+	i40e_rss_hash_restore(pf);
 }
-- 
2.5.5