[PATCH 5/6] [net-next]net: i40e: Clean up of cloud filters

[Amritha Nambiar]

Introduce the cloud filter datastructure and cleanup of cloud
filters associated with the device.

Signed-off-by: Amritha Nambiar <amritha.namb...@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e.h      |   11 +++++++++++
 drivers/net/ethernet/intel/i40e/i40e_main.c |   27 +++++++++++++++++++++++++++
 2 files changed, 38 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40e/i40e.h 
b/drivers/net/ethernet/intel/i40e/i40e.h
index 1391e5d..5c0cad5 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -252,6 +252,14 @@ struct i40e_fdir_filter {
        u32 fd_id;
 };
 
+struct i40e_cloud_filter {
+       struct hlist_node cloud_node;
+       /* cloud filter input set follows */
+       unsigned long cookie;
+       /* filter control */
+       u16 seid;
+};
+
 #define I40E_ETH_P_LLDP                        0x88cc
 
 #define I40E_DCB_PRIO_TYPE_STRICT      0
@@ -419,6 +427,9 @@ struct i40e_pf {
        struct i40e_udp_port_config udp_ports[I40E_MAX_PF_UDP_OFFLOAD_PORTS];
        u16 pending_udp_bitmap;
 
+       struct hlist_head cloud_filter_list;
+       u16 num_cloud_filters;
+
        enum i40e_interrupt_policy int_policy;
        u16 rx_itr_default;
        u16 tx_itr_default;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c 
b/drivers/net/ethernet/intel/i40e/i40e_main.c
index fdddd74..93f6fe2 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -6928,6 +6928,29 @@ static void i40e_fdir_filter_exit(struct i40e_pf *pf)
 }
 
 /**
+ * i40e_cloud_filter_exit - Cleans up the Cloud Filters
+ * @pf: Pointer to PF
+ *
+ * This function destroys the hlist where all the Cloud Filters
+ * filters were saved.
+ **/
+static void i40e_cloud_filter_exit(struct i40e_pf *pf)
+{
+       struct i40e_cloud_filter *cfilter;
+       struct hlist_node *node;
+
+       if (hlist_empty(&pf->cloud_filter_list))
+               return;
+
+       hlist_for_each_entry_safe(cfilter, node,
+                                 &pf->cloud_filter_list, cloud_node) {
+               hlist_del(&cfilter->cloud_node);
+               kfree(cfilter);
+       }
+       pf->num_cloud_filters = 0;
+}
+
+/**
  * i40e_close - Disables a network interface
  * @netdev: network interface device structure
  *
@@ -12137,6 +12160,7 @@ static int i40e_setup_pf_switch(struct i40e_pf *pf, 
bool reinit)
                        vsi = i40e_vsi_reinit_setup(pf->vsi[pf->lan_vsi]);
                if (!vsi) {
                        dev_info(&pf->pdev->dev, "setup of MAIN VSI failed\n");
+                       i40e_cloud_filter_exit(pf);
                        i40e_fdir_teardown(pf);
                        return -EAGAIN;
                }
@@ -12961,6 +12985,8 @@ static void i40e_remove(struct pci_dev *pdev)
        if (pf->vsi[pf->lan_vsi])
                i40e_vsi_release(pf->vsi[pf->lan_vsi]);
 
+       i40e_cloud_filter_exit(pf);
+
        /* remove attached clients */
        if (pf->flags & I40E_FLAG_IWARP_ENABLED) {
                ret_code = i40e_lan_del_device(pf);
@@ -13170,6 +13196,7 @@ static void i40e_shutdown(struct pci_dev *pdev)
 
        del_timer_sync(&pf->service_timer);
        cancel_work_sync(&pf->service_task);
+       i40e_cloud_filter_exit(pf);
        i40e_fdir_teardown(pf);
 
        /* Client close must be called explicitly here because the timer