ionic: add filterlist to debugfs

Dump the filter list to debugfs - includes the device-assigned
filter id and the sync'd-to-hardware status.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/pensando/ionic/ionic_debugfs.c b/drivers/net/ethernet/pensando/ionic/ionic_debugfs.c
index 86b7943..c582170 100644 (file)
--- a/drivers/net/ethernet/pensando/ionic/ionic_debugfs.c
+++ b/drivers/net/ethernet/pensando/ionic/ionic_debugfs.c
@@ -226,6 +226,50 @@ static int netdev_show(struct seq_file *seq, void *v)
 }
 DEFINE_SHOW_ATTRIBUTE(netdev);
 
+static int lif_filters_show(struct seq_file *seq, void *v)
+{
+       struct ionic_lif *lif = seq->private;
+       struct ionic_rx_filter *f;
+       struct hlist_head *head;
+       struct hlist_node *tmp;
+       unsigned int i;
+
+       seq_puts(seq, "id      flow        state type  filter\n");
+       spin_lock_bh(&lif->rx_filters.lock);
+       for (i = 0; i < IONIC_RX_FILTER_HLISTS; i++) {
+               head = &lif->rx_filters.by_id[i];
+               hlist_for_each_entry_safe(f, tmp, head, by_id) {
+                       switch (le16_to_cpu(f->cmd.match)) {
+                       case IONIC_RX_FILTER_MATCH_VLAN:
+                               seq_printf(seq, "0x%04x  0x%08x  0x%02x  vlan  0x%04x\n",
+                                          f->filter_id, f->flow_id, f->state,
+                                          le16_to_cpu(f->cmd.vlan.vlan));
+                               break;
+                       case IONIC_RX_FILTER_MATCH_MAC:
+                               seq_printf(seq, "0x%04x  0x%08x  0x%02x  mac   %pM\n",
+                                          f->filter_id, f->flow_id, f->state,
+                                          f->cmd.mac.addr);
+                               break;
+                       case IONIC_RX_FILTER_MATCH_MAC_VLAN:
+                               seq_printf(seq, "0x%04x  0x%08x  0x%02x  macvl 0x%04x %pM\n",
+                                          f->filter_id, f->flow_id, f->state,
+                                          le16_to_cpu(f->cmd.vlan.vlan),
+                                          f->cmd.mac.addr);
+                               break;
+                       case IONIC_RX_FILTER_STEER_PKTCLASS:
+                               seq_printf(seq, "0x%04x  0x%08x  0x%02x  rxstr 0x%llx\n",
+                                          f->filter_id, f->flow_id, f->state,
+                                          le64_to_cpu(f->cmd.pkt_class));
+                               break;
+                       }
+               }
+       }
+       spin_unlock_bh(&lif->rx_filters.lock);
+
+       return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(lif_filters);
+
 void ionic_debugfs_add_lif(struct ionic_lif *lif)
 {
        struct dentry *lif_dentry;
@@ -237,6 +281,8 @@ void ionic_debugfs_add_lif(struct ionic_lif *lif)
 
        debugfs_create_file("netdev", 0400, lif->dentry,
                            lif->netdev, &netdev_fops);
+       debugfs_create_file("filters", 0400, lif->dentry,
+                           lif, &lif_filters_fops);
 }
 
 void ionic_debugfs_del_lif(struct ionic_lif *lif)