sfc: Add filter table management

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/sfc/Makefile

@@ -1,4 +1,4 @@
-sfc-y			+= efx.o nic.o falcon.o siena.o tx.o rx.o \
+sfc-y			+= efx.o nic.o falcon.o siena.o tx.o rx.o filter.o \
 			   falcon_gmac.o falcon_xmac.o mcdi_mac.o \
 			   selftest.o ethtool.o qt202x_phy.o mdio_10g.o \
 			   tenxpress.o falcon_boards.o mcdi.o mcdi_phy.o

drivers/net/sfc/efx.c

@@ -1357,8 +1357,17 @@ static int efx_probe_all(struct efx_nic *efx)
 	if (rc)
 		goto fail3;
 
+	rc = efx_probe_filters(efx);
+	if (rc) {
+		netif_err(efx, probe, efx->net_dev,
+			  "failed to create filter tables\n");
+		goto fail4;
+	}
+
 	return 0;
 
+ fail4:
+	efx_remove_channels(efx);
  fail3:
 	efx_remove_port(efx);
  fail2:
@@ -1489,6 +1498,7 @@ static void efx_stop_all(struct efx_nic *efx)
 
 static void efx_remove_all(struct efx_nic *efx)
 {
+	efx_remove_filters(efx);
 	efx_remove_channels(efx);
 	efx_remove_port(efx);
 	efx_remove_nic(efx);
@@ -2002,6 +2012,7 @@ int efx_reset_up(struct efx_nic *efx, enum reset_type method, bool ok)
 	efx->mac_op->reconfigure(efx);
 
 	efx_init_channels(efx);
+	efx_restore_filters(efx);
 
 	mutex_unlock(&efx->spi_lock);
 	mutex_unlock(&efx->mac_lock);

drivers/net/sfc/efx.h

@@ -12,6 +12,7 @@
 #define EFX_EFX_H
 
 #include "net_driver.h"
+#include "filter.h"
 
 /* PCI IDs */
 #define EFX_VENDID_SFC	        0x1924
@@ -64,6 +65,19 @@ extern void efx_schedule_slow_fill(struct efx_rx_queue *rx_queue);
  * skb. Falcon/A1 may require up to three descriptors per skb_frag. */
 #define EFX_MIN_RING_SIZE (roundup_pow_of_two(2 * 3 * MAX_SKB_FRAGS))
 
+/* Filters */
+extern int efx_probe_filters(struct efx_nic *efx);
+extern void efx_restore_filters(struct efx_nic *efx);
+extern void efx_remove_filters(struct efx_nic *efx);
+extern int efx_filter_insert_filter(struct efx_nic *efx,
+				    struct efx_filter_spec *spec,
+				    bool replace);
+extern int efx_filter_remove_filter(struct efx_nic *efx,
+				    struct efx_filter_spec *spec);
+extern void efx_filter_table_clear(struct efx_nic *efx,
+				   enum efx_filter_table_id table_id,
+				   enum efx_filter_priority priority);
+
 /* Channels */
 extern void efx_process_channel_now(struct efx_channel *channel);
 extern int