net/i40e: restore ethertype filter

Add support of restoring ethertype filter in case filter
dropped accidentally, as all filters need to be added and
removed by user obviously for generic filter API.

Signed-off-by: Beilei Xing <beilei.xing@intel.com>
Acked-by: Jingjing Wu <jingjing.wu@intel.com>

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 64ceed6..2502524 100644 (file)
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -476,6 +476,9 @@ static int i40e_tunnel_filter_convert(
 static int i40e_sw_tunnel_filter_insert(struct i40e_pf *pf,
                                struct i40e_tunnel_filter *tunnel_filter);
 
+static void i40e_ethertype_filter_restore(struct i40e_pf *pf);
+static void i40e_filter_restore(struct i40e_pf *pf);
+
 static const struct rte_pci_id pci_id_i40e_map[] = {
        { RTE_PCI_DEVICE(I40E_INTEL_VENDOR_ID, I40E_DEV_ID_SFP_XL710) },
        { RTE_PCI_DEVICE(I40E_INTEL_VENDOR_ID, I40E_DEV_ID_QEMU) },
@@ -2031,6 +2034,8 @@ i40e_dev_start(struct rte_eth_dev *dev)
        /* enable uio intr after callback register */
        rte_intr_enable(intr_handle);
 
+       i40e_filter_restore(pf);
+
        return I40E_SUCCESS;
 
 err_up:
@@ -10190,3 +10195,42 @@ i40e_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
 
        return ret;
 }
+
+/* Restore ethertype filter */
+static void
+i40e_ethertype_filter_restore(struct i40e_pf *pf)
+{
+       struct i40e_hw *hw = I40E_PF_TO_HW(pf);
+       struct i40e_ethertype_filter_list
+               *ethertype_list = &pf->ethertype.ethertype_list;
+       struct i40e_ethertype_filter *f;
+       struct i40e_control_filter_stats stats;
+       uint16_t flags;
+
+       TAILQ_FOREACH(f, ethertype_list, rules) {
+               flags = 0;
+               if (!(f->flags & RTE_ETHTYPE_FLAGS_MAC))
+                       flags |= I40E_AQC_ADD_CONTROL_PACKET_FLAGS_IGNORE_MAC;
+               if (f->flags & RTE_ETHTYPE_FLAGS_DROP)
+                       flags |= I40E_AQC_ADD_CONTROL_PACKET_FLAGS_DROP;
+               flags |= I40E_AQC_ADD_CONTROL_PACKET_FLAGS_TO_QUEUE;
+
+               memset(&stats, 0, sizeof(stats));
+               i40e_aq_add_rem_control_packet_filter(hw,
+                                           f->input.mac_addr.addr_bytes,
+                                           f->input.ether_type,
+                                           flags, pf->main_vsi->seid,
+                                           f->queue, 1, &stats, NULL);
+       }
+       PMD_DRV_LOG(INFO, "Ethertype filter:"
+                   " mac_etype_used = %u, etype_used = %u,"
+                   " mac_etype_free = %u, etype_free = %u\n",
+                   stats.mac_etype_used, stats.etype_used,
+                   stats.mac_etype_free, stats.etype_free);
+}
+
+static void
+i40e_filter_restore(struct i40e_pf *pf)
+{
+       i40e_ethertype_filter_restore(pf);
+}