Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/bwh/sfc-next

Ben Hutchings says:

====================
More refactoring and cleanup, particularly around filter management.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/ethernet/sfc/Makefile

 sfc-y			+= efx.o nic.o farch.o falcon.o siena.o tx.o rx.o \
-			   filter.o \
 			   selftest.o ethtool.o qt202x_phy.o mdio_10g.o \
 			   tenxpress.o txc43128_phy.o falcon_boards.o \
 			   mcdi.o mcdi_port.o mcdi_mon.o ptp.o

drivers/net/ethernet/sfc/efx.c

@@ -17,7 +17,6 @@
 #include <linux/ip.h>
 #include <linux/tcp.h>
 #include <linux/in.h>
-#include <linux/crc32.h>
 #include <linux/ethtool.h>
 #include <linux/topology.h>
 #include <linux/gfp.h>
@@ -339,6 +338,7 @@ static void efx_init_eventq(struct efx_channel *channel)
 	channel->eventq_read_ptr = 0;
 
 	efx_nic_init_eventq(channel);
+	channel->eventq_init = true;
 }
 
 /* Enable event queue processing and NAPI */
@@ -367,10 +367,14 @@ static void efx_stop_eventq(struct efx_channel *channel)
 
 static void efx_fini_eventq(struct efx_channel *channel)
 {
+	if (!channel->eventq_init)
+		return;
+
 	netif_dbg(channel->efx, drv, channel->efx->net_dev,
 		  "chan %d fini event queue\n", channel->channel);
 
 	efx_nic_fini_eventq(channel);
+	channel->eventq_init = false;
 }
 
 static void efx_remove_eventq(struct efx_channel *channel)
@@ -606,7 +610,7 @@ static void efx_start_datapath(struct efx_nic *efx)
 
 	/* RX filters also have scatter-enabled flags */
 	if (efx->rx_scatter != old_rx_scatter)
-		efx_filter_update_rx_scatter(efx);
+		efx->type->filter_update_rx_scatter(efx);
 
 	/* We must keep at least one descriptor in a TX ring empty.
 	 * We could avoid this when the queue size does not exactly
@@ -871,10 +875,9 @@ void efx_link_status_changed(struct efx_nic *efx)
 	/* Status message for kernel log */
 	if (link_state->up)
 		netif_info(efx, link, efx->net_dev,
-			   "link up at %uMbps %s-duplex (MTU %d)%s\n",
+			   "link up at %uMbps %s-duplex (MTU %d)\n",
 			   link_state->speed, link_state->fd ? "full" : "half",
-			   efx->net_dev->mtu,
-			   (efx->promiscuous ? " [PROMISC]" : ""));
+			   efx->net_dev->mtu);
 	else
 		netif_info(efx, link, efx->net_dev, "link down\n");
 }
@@ -923,10 +926,6 @@ int __efx_reconfigure_port(struct efx_nic *efx)
 
 	WARN_ON(!mutex_is_locked(&efx->mac_lock));
 
-	/* Serialise the promiscuous flag with efx_set_rx_mode. */
-	netif_addr_lock_bh(efx->net_dev);
-	netif_addr_unlock_bh(efx->net_dev);
-
 	/* Disable PHY transmit in mac level loopbacks */
 	phy_mode = efx->phy_mode;
 	if (LOOPBACK_INTERNAL(efx))
@@ -1084,6 +1083,7 @@ static int efx_init_io(struct efx_nic *efx)
 {
 	struct pci_dev *pci_dev = efx->pci_dev;
 	dma_addr_t dma_mask = efx->type->max_dma_mask;
+	unsigned int mem_map_size = efx->type->mem_map_size(efx);
 	int rc;
 
 	netif_dbg(efx, probe, efx->net_dev, "initialising I/O\n");
@@ -1136,20 +1136,18 @@ static int efx_init_io(struct efx_nic *efx)
 		rc = -EIO;
 		goto fail3;
 	}
-	efx->membase = ioremap_nocache(efx->membase_phys,
-				       efx->type->mem_map_size);
+	efx->membase = ioremap_nocache(efx->membase_phys, mem_map_size);
 	if (!efx->membase) {
 		netif_err(efx, probe, efx->net_dev,
 			  "could not map memory BAR at %llx+%x\n",
-			  (unsigned long long)efx->membase_phys,
-			  efx->type->mem_map_size);
+			  (unsigned long long)efx->membase_phys, mem_map_size);
 		rc = -ENOMEM;
 		goto fail4;
 	}
 	netif_dbg(efx, probe, efx->net_dev,
 		  "memory BAR at %llx+%x (virtual %p)\n",
-		  (unsigned long long)efx->membase_phys,
-		  efx->type->mem_map_size, efx->membase);
+		  (unsigned long long)efx->membase_phys, mem_map_size,
+		  efx->membase);
 
 	return 0;
 
@@ -1228,8 +1226,6 @@ static unsigned int efx_wanted_parallelism(struct efx_nic *efx)
  */
 static int efx_probe_interrupts(struct efx_nic *efx)
 {
-	unsigned int max_channels =
-		min(efx->type->phys_addr_channels, EFX_MAX_CHANNELS);
 	unsigned int extra_channels = 0;
 	unsigned int i, j;
 	int rc;
@@ -1246,7 +1242,7 @@ static int efx_probe_interrupts(struct efx_nic *efx)
 		if (separate_tx_channels)
 			n_channels *= 2;
 		n_channels += extra_channels;
-		n_channels = min(n_channels, max_channels);
+		n_channels = min(n_channels, efx->max_channels);
 
 		for (i = 0; i < n_channels; i++)
 			xentries[i].entry = i;
@@ -1497,6 +1493,44 @@ static void efx_remove_nic(struct efx_nic *efx)
 	efx->type->remove(efx);
 }
 
+static int efx_probe_filters(struct efx_nic *efx)
+{
+	int rc;
+
+	spin_lock_init(&efx->filter_lock);
+
+	rc = efx->type->filter_table_probe(efx);
+	if (rc)
+		return rc;
+
+#ifdef CONFIG_RFS_ACCEL
+	if (efx->type->offload_features & NETIF_F_NTUPLE) {
+		efx->rps_flow_id = kcalloc(efx->type->max_rx_ip_filters,
+					   sizeof(*efx->rps_flow_id),
+					   GFP_KERNEL);
+		if (!efx->rps_flow_id) {
+			efx->type->filter_table_remove(efx);
+			return -ENOMEM;
+		}
+	}
+#endif
+
+	return 0;
+}
+
+static void efx_remove_filters(struct efx_nic *efx)
+{
+#ifdef CONFIG_RFS_ACCEL
+	kfree(efx->rps_flow_id);
+#endif
+	efx->type->filter_table_remove(efx);
+}
+
+static void efx_restore_filters(struct efx_nic *efx)
+{
+	efx->type->filter_table_restore(efx);
+}
+
 /**************************************************************************
  *
  * NIC startup/shutdown
@@ -1987,30 +2021,6 @@ static int efx_set_mac_address(struct net_device *net_dev, void *data)
 static void efx_set_rx_mode(struct net_device *net_dev)
 {
 	struct efx_nic *efx = netdev_priv(net_dev);
-	struct netdev_hw_addr *ha;
-	union efx_multicast_hash *mc_hash = &efx->multicast_hash;
-	u32 crc;
-	int bit;
-
-	efx->promiscuous = !!(net_dev->flags & IFF_PROMISC);
-
-	/* Build multicast hash table */
-	if (efx->promiscuous || (net_dev->flags & IFF_ALLMULTI)) {
-		memset(mc_hash, 0xff, sizeof(*mc_hash));
-	} else {
-		memset(mc_hash, 0x00, sizeof(*mc_hash));
-		netdev_for_each_mc_addr(ha, net_dev) {
-			crc = ether_crc_le(ETH_ALEN, ha->addr);
-			bit = crc & (EFX_MCAST_HASH_ENTRIES - 1);
-			__set_bit_le(bit, mc_hash);
-		}
-
-		/* Broadcast packets go through the multicast hash filter.
-		 * ether_crc_le() of the broadcast address is 0xbe2612ff
-		 * so we always add bit 0xff to the mask.
-		 */
-		__set_bit_le(0xff, mc_hash);
-	}
 
 	if (efx->port_enabled)
 		queue_work(efx->workqueue, &efx->mac_work);
@@ -2489,8 +2499,6 @@ static int efx_init_struct(struct efx_nic *efx,
 		efx->msi_context[i].index = i;
 	}
 
-	EFX_BUG_ON_PARANOID(efx->type->phys_addr_channels > EFX_MAX_CHANNELS);
-
 	/* Higher numbered interrupt modes are less capable! */
 	efx->interrupt_mode = max(efx->type->max_interrupt_mode,
 				  interrupt_mode);

drivers/net/ethernet/sfc/efx.h

@@ -68,27 +68,92 @@ extern void efx_schedule_slow_fill(struct efx_rx_queue *rx_queue);
 #define EFX_TXQ_MIN_ENT(efx)	(2 * efx_tx_max_skb_descs(efx))
 
 /* 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 void efx_filter_update_rx_scatter(struct efx_nic *efx);
-extern s32 efx_filter_insert_filter(struct efx_nic *efx,
-				    struct efx_filter_spec *spec,
-				    bool replace);
-extern int efx_filter_remove_id_safe(struct efx_nic *efx,
-				     enum efx_filter_priority priority,
-				     u32 filter_id);
-extern int efx_filter_get_filter_safe(struct efx_nic *efx,
-				      enum efx_filter_priority priority,
-				      u32 filter_id, struct efx_filter_spec *);
-extern void efx_filter_clear_rx(struct efx_nic *efx,
-				enum efx_filter_priority priority);
-extern u32 efx_filter_count_rx_used(struct efx_nic *efx,
-				    enum efx_filter_priority priority);
-extern u32 efx_filter_get_rx_id_limit(struct efx_nic *efx);
-extern s32 efx_filter_get_rx_ids(struct efx_nic *efx,
-				 enum efx_filter_priority priority,
-				 u32 *buf, u32 size);
+
+/**
+ * efx_filter_insert_filter - add or replace a filter
+ * @efx: NIC in which to insert the filter
+ * @spec: Specification for the filter
+ * @replace_equal: Flag for whether the specified filter may replace an
+ *	existing filter with equal priority
+ *
+ * On success, return the filter ID.
+ * On failure, return a negative error code.
+ *
+ * If an existing filter has equal match values to the new filter
+ * spec, then the new filter might replace it, depending on the
+ * relative priorities.  If the existing filter has lower priority, or
+ * if @replace_equal is set and it has equal priority, then it is
+ * replaced.  Otherwise the function fails, returning -%EPERM if
+ * the existing filter has higher priority or -%EEXIST if it has
+ * equal priority.
+ */
+static inline s32 efx_filter_insert_filter(struct efx_nic *efx,
+					   struct efx_filter_spec *spec,
+					   bool replace_equal)
+{
+	return efx->type->filter_insert(efx, spec, replace_equal);
+}
+
+/**
+ * efx_filter_remove_id_safe - remove a filter by ID, carefully
+ * @efx: NIC from which to remove the filter
+ * @priority: Priority of filter, as passed to @efx_filter_insert_filter
+ * @filter_id: ID of filter, as returned by @efx_filter_insert_filter
+ *
+ * This function will range-check @filter_id, so it is safe to call
+ * with a value passed from userland.
+ */
+static inline int efx_filter_remove_id_safe(struct efx_nic *efx,
+					    enum efx_filter_priority priority,
+					    u32 filter_id)
+{
+	return efx->type->filter_remove_safe(efx, priority, filter_id);
+}
+
+/**
+ * efx_filter_get_filter_safe - retrieve a filter by ID, carefully
+ * @efx: NIC from which to remove the filter
+ * @priority: Priority of filter, as passed to @efx_filter_insert_filter
+ * @filter_id: ID of filter, as returned by @efx_filter_insert_filter
+ * @spec: Buffer in which to store filter specification
+ *
+ * This function will range-check @filter_id, so it is safe to call
+ * with a value passed from userland.
+ */
+static inline int
+efx_filter_get_filter_safe(struct efx_nic *efx,
+			   enum efx_filter_priority priority,
+			   u32 filter_id, struct efx_filter_spec *spec)
+{
+	return efx->type->filter_get_safe(efx, priority, filter_id, spec);
+}
+
+/**
+ * efx_farch_filter_clear_rx - remove RX filters by priority
+ * @efx: NIC from which to remove the filters
+ * @priority: Maximum priority to remove
+ */
+static inline void efx_filter_clear_rx(struct efx_nic *efx,
+				       enum efx_filter_priority priority)
+{
+	return efx->type->filter_clear_rx(efx, priority);
+}
+
+static inline u32 efx_filter_count_rx_used(struct efx_nic *efx,
+					   enum efx_filter_priority priority)
+{
+	return efx->type->filter_count_rx_used(efx, priority);
+}
+static inline u32 efx_filter_get_rx_id_limit(struct efx_nic *efx)
+{
+	return efx->type->filter_get_rx_id_limit(efx);
+}
+static inline s32 efx_filter_get_rx_ids(struct efx_nic *efx,
+					enum efx_filter_priority priority,
+					u32 *buf, u32 size)
+{
+	return efx->type->filter_get_rx_ids(efx, priority, buf, size);
+}
 #ifdef CONFIG_RFS_ACCEL
 extern int efx_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb,
 			  u16 rxq_index, u32 flow_id);

drivers/net/ethernet/sfc/ethtool.c

@@ -799,11 +799,12 @@ static int efx_ethtool_reset(struct net_device *net_dev, u32 *flags)
 	return efx_reset(efx, rc);
 }
 
-/* MAC address mask including only MC flag */
-static const u8 mac_addr_mc_mask[ETH_ALEN] = { 0x01, 0, 0, 0, 0, 0 };
+/* MAC address mask including only I/G bit */
+static const u8 mac_addr_ig_mask[ETH_ALEN] = { 0x01, 0, 0, 0, 0, 0 };
 
 #define IP4_ADDR_FULL_MASK	((__force __be32)~0)
 #define PORT_FULL_MASK		((__force __be16)~0)
+#define ETHER_TYPE_FULL_MASK	((__force __be16)~0)
 
 static int efx_ethtool_get_class_rule(struct efx_nic *efx,
 				      struct ethtool_rx_flow_spec *rule)
@@ -813,8 +814,6 @@ static int efx_ethtool_get_class_rule(struct efx_nic *efx,
 	struct ethhdr *mac_entry = &rule->h_u.ether_spec;
 	struct ethhdr *mac_mask = &rule->m_u.ether_spec;
 	struct efx_filter_spec spec;
-	u16 vid;
-	u8 proto;
 	int rc;
 
 	rc = efx_filter_get_filter_safe(efx, EFX_FILTER_PRI_MANUAL,
@@ -822,44 +821,72 @@ static int efx_ethtool_get_class_rule(struct efx_nic *efx,
 	if (rc)
 		return rc;
 
-	if (spec.dmaq_id == 0xfff)
+	if (spec.dmaq_id == EFX_FILTER_RX_DMAQ_ID_DROP)
 		rule->ring_cookie = RX_CLS_FLOW_DISC;
 	else
 		rule->ring_cookie = spec.dmaq_id;
 
-	if (spec.type == EFX_FILTER_MC_DEF || spec.type == EFX_FILTER_UC_DEF) {
-		rule->flow_type = ETHER_FLOW;
-		memcpy(mac_mask->h_dest, mac_addr_mc_mask, ETH_ALEN);
-		if (spec.type == EFX_FILTER_MC_DEF)
-			memcpy(mac_entry->h_dest, mac_addr_mc_mask, ETH_ALEN);
-		return 0;
-	}
-
-	rc = efx_filter_get_eth_local(&spec, &vid, mac_entry->h_dest);
-	if (rc == 0) {
+	if ((spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) &&
+	    spec.ether_type == htons(ETH_P_IP) &&
+	    (spec.match_flags & EFX_FILTER_MATCH_IP_PROTO) &&
+	    (spec.ip_proto == IPPROTO_TCP || spec.ip_proto == IPPROTO_UDP) &&
+	    !(spec.match_flags &
+	      ~(EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_OUTER_VID |
+		EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_REM_HOST |
+		EFX_FILTER_MATCH_IP_PROTO |
+		EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))) {
+		rule->flow_type = ((spec.ip_proto == IPPROTO_TCP) ?
+				   TCP_V4_FLOW : UDP_V4_FLOW);
+		if (spec.match_flags & EFX_FILTER_MATCH_LOC_HOST) {
+			ip_entry->ip4dst = spec.loc_host[0];
+			ip_mask->ip4dst = IP4_ADDR_FULL_MASK;
+		}
+		if (spec.match_flags & EFX_FILTER_MATCH_REM_HOST) {
+			ip_entry->ip4src = spec.rem_host[0];
+			ip_mask->ip4src = IP4_ADDR_FULL_MASK;
+		}
+		if (spec.match_flags & EFX_FILTER_MATCH_LOC_PORT) {
+			ip_entry->pdst = spec.loc_port;
+			ip_mask->pdst = PORT_FULL_MASK;
+		}
+		if (spec.match_flags & EFX_FILTER_MATCH_REM_PORT) {
+			ip_entry->psrc = spec.rem_port;
+			ip_mask->psrc = PORT_FULL_MASK;
+		}
+	} else if (!(spec.match_flags &
+		     ~(EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG |
+		       EFX_FILTER_MATCH_REM_MAC | EFX_FILTER_MATCH_ETHER_TYPE |
+		       EFX_FILTER_MATCH_OUTER_VID))) {
 		rule->flow_type = ETHER_FLOW;
-		memset(mac_mask->h_dest, ~0, ETH_ALEN);
-		if (vid != EFX_FILTER_VID_UNSPEC) {
-			rule->flow_type |= FLOW_EXT;
-			rule->h_ext.vlan_tci = htons(vid);
-			rule->m_ext.vlan_tci = htons(0xfff);
+		if (spec.match_flags &
+		    (EFX_FILTER_MATCH_LOC_MAC | EFX_FILTER_MATCH_LOC_MAC_IG)) {
+			memcpy(mac_entry->h_dest, spec.loc_mac, ETH_ALEN);
+			if (spec.match_flags & EFX_FILTER_MATCH_LOC_MAC)
+				memset(mac_mask->h_dest, ~0, ETH_ALEN);
+			else
+				memcpy(mac_mask->h_dest, mac_addr_ig_mask,
+				       ETH_ALEN);
 		}
-		return 0;
+		if (spec.match_flags & EFX_FILTER_MATCH_REM_MAC) {
+			memcpy(mac_entry->h_source, spec.rem_mac, ETH_ALEN);
+			memset(mac_mask->h_source, ~0, ETH_ALEN);
+		}
+		if (spec.match_flags & EFX_FILTER_MATCH_ETHER_TYPE) {
+			mac_entry->h_proto = spec.ether_type;
+			mac_mask->h_proto = ETHER_TYPE_FULL_MASK;
+		}
+	} else {
+		/* The above should handle all filters that we insert */
+		WARN_ON(1);
+		return -EINVAL;
 	}
 
-	rc = efx_filter_get_ipv4_local(&spec, &proto,
-				       &ip_entry->ip4dst, &ip_entry->pdst);
-	if (rc != 0) {
-		rc = efx_filter_get_ipv4_full(
-			&spec, &proto, &ip_entry->ip4dst, &ip_entry->pdst,
-			&ip_entry->ip4src, &ip_entry->psrc);
-		EFX_WARN_ON_PARANOID(rc);
-		ip_mask->ip4src = IP4_ADDR_FULL_MASK;
-		ip_mask->psrc = PORT_FULL_MASK;
+	if (spec.match_flags & EFX_FILTER_MATCH_OUTER_VID) {
+		rule->flow_type |= FLOW_EXT;
+		rule->h_ext.vlan_tci = spec.outer_vid;
+		rule->m_ext.vlan_tci = htons(0xfff);
 	}
-	rule->flow_type = (proto == IPPROTO_TCP) ? TCP_V4_FLOW : UDP_V4_FLOW;
-	ip_mask->ip4dst = IP4_ADDR_FULL_MASK;
-	ip_mask->pdst = PORT_FULL_MASK;
+
 	return rc;
 }
 
@@ -967,82 +994,80 @@ static int efx_ethtool_set_class_rule(struct efx_nic *efx,
 	efx_filter_init_rx(&spec, EFX_FILTER_PRI_MANUAL,
 			   efx->rx_scatter ? EFX_FILTER_FLAG_RX_SCATTER : 0,
 			   (rule->ring_cookie == RX_CLS_FLOW_DISC) ?
-			   0xfff : rule->ring_cookie);
+			   EFX_FILTER_RX_DMAQ_ID_DROP : rule->ring_cookie);
 
-	switch (rule->flow_type) {
+	switch (rule->flow_type & ~FLOW_EXT) {
 	case TCP_V4_FLOW:
-	case UDP_V4_FLOW: {
-		u8 proto = (rule->flow_type == TCP_V4_FLOW ?
-			    IPPROTO_TCP : IPPROTO_UDP);
-
-		/* Must match all of destination, */
-		if (!(ip_mask->ip4dst == IP4_ADDR_FULL_MASK &&
-		      ip_mask->pdst == PORT_FULL_MASK))
-			return -EINVAL;
-		/* all or none of source, */
-		if ((ip_mask->ip4src || ip_mask->psrc) &&
-		    !(ip_mask->ip4src == IP4_ADDR_FULL_MASK &&
-		      ip_mask->psrc == PORT_FULL_MASK))
-			return -EINVAL;
-		/* and nothing else */
-		if (ip_mask->tos || rule->m_ext.vlan_tci)
+	case UDP_V4_FLOW:
+		spec.match_flags = (EFX_FILTER_MATCH_ETHER_TYPE |
+				    EFX_FILTER_MATCH_IP_PROTO);
+		spec.ether_type = htons(ETH_P_IP);
+		spec.ip_proto = ((rule->flow_type & ~FLOW_EXT) == TCP_V4_FLOW ?
+				 IPPROTO_TCP : IPPROTO_UDP);
+		if (ip_mask->ip4dst) {
+			if (ip_mask->ip4dst != IP4_ADDR_FULL_MASK)
+				return -EINVAL;
+			spec.match_flags |= EFX_FILTER_MATCH_LOC_HOST;
+			spec.loc_host[0] = ip_entry->ip4dst;
+		}
+		if (ip_mask->ip4src) {
+			if (ip_mask->ip4src != IP4_ADDR_FULL_MASK)
+				return -EINVAL;
+			spec.match_flags |= EFX_FILTER_MATCH_REM_HOST;
+			spec.rem_host[0] = ip_entry->ip4src;
+		}
+		if (ip_mask->pdst) {
+			if (ip_mask->pdst != PORT_FULL_MASK)
+				return -EINVAL;
+			spec.match_flags |= EFX_FILTER_MATCH_LOC_PORT;
+			spec.loc_port = ip_entry->pdst;
+		}
+		if (ip_mask->psrc) {
+			if (ip_mask->psrc != PORT_FULL_MASK)
+				return -EINVAL;
+			spec.match_flags |= EFX_FILTER_MATCH_REM_PORT;
+			spec.rem_port = ip_entry->psrc;
+		}
+		if (ip_mask->tos)
 			return -EINVAL;
-
-		if (ip_mask->ip4src)
-			rc = efx_filter_set_ipv4_full(&spec, proto,
-						      ip_entry->ip4dst,
-						      ip_entry->pdst,
-						      ip_entry->ip4src,
-						      ip_entry->psrc);
-		else
-			rc = efx_filter_set_ipv4_local(&spec, proto,
-						       ip_entry->ip4dst,
-						       ip_entry->pdst);
-		if (rc)
-			return rc;
 		break;
-	}
-
-	case ETHER_FLOW | FLOW_EXT:
-	case ETHER_FLOW: {
-		u16 vlan_tag_mask = (rule->flow_type & FLOW_EXT ?
-				     ntohs(rule->m_ext.vlan_tci) : 0);
 
-		/* Must not match on source address or Ethertype */
-		if (!is_zero_ether_addr(mac_mask->h_source) ||
-		    mac_mask->h_proto)
-			return -EINVAL;
-
-		/* Is it a default UC or MC filter? */
-		if (ether_addr_equal(mac_mask->h_dest, mac_addr_mc_mask) &&
-		    vlan_tag_mask == 0) {
-			if (is_multicast_ether_addr(mac_entry->h_dest))
-				rc = efx_filter_set_mc_def(&spec);
+	case ETHER_FLOW:
+		if (!is_zero_ether_addr(mac_mask->h_dest)) {
+			if (ether_addr_equal(mac_mask->h_dest,
+					     mac_addr_ig_mask))
+				spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC_IG;
+			else if (is_broadcast_ether_addr(mac_mask->h_dest))
+				spec.match_flags |= EFX_FILTER_MATCH_LOC_MAC;
 			else
-				rc = efx_filter_set_uc_def(&spec);
+				return -EINVAL;
+			memcpy(spec.loc_mac, mac_entry->h_dest, ETH_ALEN);
 		}
-		/* Otherwise, it must match all of destination and all
-		 * or none of VID.
-		 */
-		else if (is_broadcast_ether_addr(mac_mask->h_dest) &&
-			 (vlan_tag_mask == 0xfff || vlan_tag_mask == 0)) {
-			rc = efx_filter_set_eth_local(
-				&spec,
-				vlan_tag_mask ?
-				ntohs(rule->h_ext.vlan_tci) : EFX_FILTER_VID_UNSPEC,
-				mac_entry->h_dest);
-		} else {
-			rc = -EINVAL;
+		if (!is_zero_ether_addr(mac_mask->h_source)) {
+			if (!is_broadcast_ether_addr(mac_mask->h_source))
+				return -EINVAL;
+			spec.match_flags |= EFX_FILTER_MATCH_REM_MAC;
+			memcpy(spec.rem_mac, mac_entry->h_source, ETH_ALEN);
+		}
+		if (mac_mask->h_proto) {
+			if (mac_mask->h_proto != ETHER_TYPE_FULL_MASK)
+				return -EINVAL;
+			spec.match_flags |= EFX_FILTER_MATCH_ETHER_TYPE;
+			spec.ether_type = mac_entry->h_proto;
 		}
-		if (rc)
-			return rc;
 		break;
-	}
 
 	default:
 		return -EINVAL;
 	}
 
+	if ((rule->flow_type & FLOW_EXT) && rule->m_ext.vlan_tci) {
+		if (rule->m_ext.vlan_tci != htons(0xfff))
+			return -EINVAL;
+		spec.match_flags |= EFX_FILTER_MATCH_OUTER_VID;
+		spec.outer_vid = rule->h_ext.vlan_tci;
+	}
+
 	rc = efx_filter_insert_filter(efx, &spec, true);
 	if (rc < 0)
 		return rc;

drivers/net/ethernet/sfc/falcon.c

@@ -434,7 +434,7 @@ static int falcon_spi_wait(struct efx_nic *efx)
 	}
 }
 
-int falcon_spi_cmd(struct efx_nic *efx, const struct efx_spi_device *spi,
+int falcon_spi_cmd(struct efx_nic *efx, const struct falcon_spi_device *spi,
 		   unsigned int command, int address,
 		   const void *in, void *out, size_t len)
 {
@@ -491,22 +491,22 @@ int falcon_spi_cmd(struct efx_nic *efx, const struct efx_spi_device *spi,
 }
 
 static size_t
-falcon_spi_write_limit(const struct efx_spi_device *spi, size_t start)
+falcon_spi_write_limit(const struct falcon_spi_device *spi, size_t start)
 {
 	return min(FALCON_SPI_MAX_LEN,
 		   (spi->block_size - (start & (spi->block_size - 1))));
 }
 
 static inline u8
-efx_spi_munge_command(const struct efx_spi_device *spi,
-		      const u8 command, const unsigned int address)
+falcon_spi_munge_command(const struct falcon_spi_device *spi,
+			 const u8 command, const unsigned int address)
 {
 	return command | (((address >> 8) & spi->munge_address) << 3);
 }
 
 /* Wait up to 10 ms for buffered write completion */
 int
-falcon_spi_wait_write(struct efx_nic *efx, const struct efx_spi_device *spi)
+falcon_spi_wait_write(struct efx_nic *efx, const struct falcon_spi_device *spi)
 {
 	unsigned long timeout = jiffies + 1 + DIV_ROUND_UP(HZ, 100);
 	u8 status;
@@ -530,7 +530,7 @@ falcon_spi_wait_write(struct efx_nic *efx, const struct efx_spi_device *spi)
 	}
 }
 
-int falcon_spi_read(struct efx_nic *efx, const struct efx_spi_device *spi,
+int falcon_spi_read(struct efx_nic *efx, const struct falcon_spi_device *spi,
 		    loff_t start, size_t len, size_t *retlen, u8 *buffer)
 {
 	size_t block_len, pos = 0;
@@ -540,7 +540,7 @@ int falcon_spi_read(struct efx_nic *efx, const struct efx_spi_device *spi,
 	while (pos < len) {
 		block_len = min(len - pos, FALCON_SPI_MAX_LEN);
 
-		command = efx_spi_munge_command(spi, SPI_READ, start + pos);
+		command = falcon_spi_munge_command(spi, SPI_READ, start + pos);
 		rc = falcon_spi_cmd(efx, spi, command, start + pos, NULL,
 				    buffer + pos, block_len);
 		if (rc)
@@ -561,7 +561,7 @@ int falcon_spi_read(struct efx_nic *efx, const struct efx_spi_device *spi,
 }
 
 int
-falcon_spi_write(struct efx_nic *efx, const struct efx_spi_device *spi,
+falcon_spi_write(struct efx_nic *efx, const struct falcon_spi_device *spi,
 		 loff_t start, size_t len, size_t *retlen, const u8 *buffer)
 {
 	u8 verify_buffer[FALCON_SPI_MAX_LEN];
@@ -576,7 +576,7 @@ falcon_spi_write(struct efx_nic *efx, const struct efx_spi_device *spi,
 
 		block_len = min(len - pos,
 				falcon_spi_write_limit(spi, start + pos));
-		command = efx_spi_munge_command(spi, SPI_WRITE, start + pos);
+		command = falcon_spi_munge_command(spi, SPI_WRITE, start + pos);
 		rc = falcon_spi_cmd(efx, spi, command, start + pos,
 				    buffer + pos, NULL, block_len);
 		if (rc)
@@ -586,7 +586,7 @@ falcon_spi_write(struct efx_nic *efx, const struct efx_spi_device *spi,
 		if (rc)
 			break;
 
-		command = efx_spi_munge_command(spi, SPI_READ, start + pos);
+		command = falcon_spi_munge_command(spi, SPI_READ, start + pos);
 		rc = falcon_spi_cmd(efx, spi, command, start + pos,
 				    NULL, verify_buffer, block_len);
 		if (memcmp(verify_buffer, buffer + pos, block_len)) {
@@ -686,7 +686,7 @@ static void falcon_ack_status_intr(struct efx_nic *efx)
 		return;
 
 	/* We expect xgmii faults if the wireside link is down */
-	if (!EFX_WORKAROUND_5147(efx) || !efx->link_state.up)
+	if (!efx->link_state.up)
 		return;
 
 	/* We can only use this interrupt to signal the negative edge of
@@ -764,7 +764,7 @@ static void falcon_reconfigure_xmac_core(struct efx_nic *efx)
 			     FRF_AB_XM_RXEN, 1,
 			     FRF_AB_XM_AUTO_DEPAD, 0,
 			     FRF_AB_XM_ACPT_ALL_MCAST, 1,
-			     FRF_AB_XM_ACPT_ALL_UCAST, efx->promiscuous,
+			     FRF_AB_XM_ACPT_ALL_UCAST, !efx->unicast_filter,
 			     FRF_AB_XM_PASS_CRC_ERR, 1);
 	efx_writeo(efx, &reg, FR_AB_XM_RX_CFG);
 
@@ -795,29 +795,22 @@ static void falcon_reconfigure_xgxs_core(struct efx_nic *efx)
 	bool xgxs_loopback = (efx->loopback_mode == LOOPBACK_XGXS);
 	bool xaui_loopback = (efx->loopback_mode == LOOPBACK_XAUI);
 	bool xgmii_loopback = (efx->loopback_mode == LOOPBACK_XGMII);
+	bool old_xgmii_loopback, old_xgxs_loopback, old_xaui_loopback;
 
 	/* XGXS block is flaky and will need to be reset if moving
 	 * into our out of XGMII, XGXS or XAUI loopbacks. */
-	if (EFX_WORKAROUND_5147(efx)) {
-		bool old_xgmii_loopback, old_xgxs_loopback, old_xaui_loopback;
-		bool reset_xgxs;
-
-		efx_reado(efx, &reg, FR_AB_XX_CORE_STAT);
-		old_xgxs_loopback = EFX_OWORD_FIELD(reg, FRF_AB_XX_XGXS_LB_EN);
-		old_xgmii_loopback =
-			EFX_OWORD_FIELD(reg, FRF_AB_XX_XGMII_LB_EN);
-
-		efx_reado(efx, &reg, FR_AB_XX_SD_CTL);
-		old_xaui_loopback = EFX_OWORD_FIELD(reg, FRF_AB_XX_LPBKA);
+	efx_reado(efx, &reg, FR_AB_XX_CORE_STAT);
+	old_xgxs_loopback = EFX_OWORD_FIELD(reg, FRF_AB_XX_XGXS_LB_EN);
+	old_xgmii_loopback = EFX_OWORD_FIELD(reg, FRF_AB_XX_XGMII_LB_EN);
 
-		/* The PHY driver may have turned XAUI off */
-		reset_xgxs = ((xgxs_loopback != old_xgxs_loopback) ||
-			      (xaui_loopback != old_xaui_loopback) ||
-			      (xgmii_loopback != old_xgmii_loopback));
+	efx_reado(efx, &reg, FR_AB_XX_SD_CTL);
+	old_xaui_loopback = EFX_OWORD_FIELD(reg, FRF_AB_XX_LPBKA);
 
-		if (reset_xgxs)
-			falcon_reset_xaui(efx);
-	}
+	/* The PHY driver may have turned XAUI off */
+	if ((xgxs_loopback != old_xgxs_loopback) ||
+	    (xaui_loopback != old_xaui_loopback) ||
+	    (xgmii_loopback != old_xgmii_loopback))
+		falcon_reset_xaui(efx);
 
 	efx_reado(efx, &reg, FR_AB_XX_CORE_STAT);
 	EFX_SET_OWORD_FIELD(reg, FRF_AB_XX_FORCE_SIG,
@@ -871,6 +864,8 @@ static int falcon_reconfigure_xmac(struct efx_nic *efx)
 {
 	struct falcon_nic_data *nic_data = efx->nic_data;
 
+	efx_farch_filter_sync_rx_mode(efx);
+
 	falcon_reconfigure_xgxs_core(efx);
 	falcon_reconfigure_xmac_core(efx);
 
@@ -946,8 +941,8 @@ static void falcon_poll_xmac(struct efx_nic *efx)
 {
 	struct falcon_nic_data *nic_data = efx->nic_data;
 
-	if (!EFX_WORKAROUND_5147(efx) || !efx->link_state.up ||
-	    !nic_data->xmac_poll_required)
+	/* We expect xgmii faults if the wireside link is down */
+	if (!efx->link_state.up || !nic_data->xmac_poll_required)
 		return;
 
 	nic_data->xmac_poll_required = !falcon_xmac_link_ok_retry(efx, 1);
@@ -1088,7 +1083,7 @@ static void falcon_reconfigure_mac_wrapper(struct efx_nic *efx)
 	EFX_POPULATE_OWORD_5(reg,
 			     FRF_AB_MAC_XOFF_VAL, 0xffff /* max pause time */,
 			     FRF_AB_MAC_BCAD_ACPT, 1,
-			     FRF_AB_MAC_UC_PROM, efx->promiscuous,
+			     FRF_AB_MAC_UC_PROM, !efx->unicast_filter,
 			     FRF_AB_MAC_LINK_STATUS, 1, /* always set */
 			     FRF_AB_MAC_SPEED, link_speed);
 	/* On B0, MAC backpressure can be disabled and packets get
@@ -1486,15 +1481,15 @@ falcon_read_nvram(struct efx_nic *efx, struct falcon_nvconfig *nvconfig_out)
 {
 	struct falcon_nic_data *nic_data = efx->nic_data;
 	struct falcon_nvconfig *nvconfig;
-	struct efx_spi_device *spi;
+	struct falcon_spi_device *spi;
 	void *region;
 	int rc, magic_num, struct_ver;
 	__le16 *word, *limit;
 	u32 csum;
 
-	if (efx_spi_present(&nic_data->spi_flash))
+	if (falcon_spi_present(&nic_data->spi_flash))
 		spi = &nic_data->spi_flash;
-	else if (efx_spi_present(&nic_data->spi_eeprom))
+	else if (falcon_spi_present(&nic_data->spi_eeprom))
 		spi = &nic_data->spi_eeprom;
 	else
 		return -EINVAL;
@@ -1509,7 +1504,7 @@ falcon_read_nvram(struct efx_nic *efx, struct falcon_nvconfig *nvconfig_out)
 	mutex_unlock(&nic_data->spi_lock);
 	if (rc) {
 		netif_err(efx, hw, efx->net_dev, "Failed to read %s\n",
-			  efx_spi_present(&nic_data->spi_flash) ?
+			  falcon_spi_present(&nic_data->spi_flash) ?
 			  "flash" : "EEPROM");
 		rc = -EIO;
 		goto out;
@@ -1854,7 +1849,7 @@ static int falcon_reset_sram(struct efx_nic *efx)
 }
 
 static void falcon_spi_device_init(struct efx_nic *efx,
-				  struct efx_spi_device *spi_device,
+				  struct falcon_spi_device *spi_device,
 				  unsigned int device_id, u32 device_type)
 {
 	if (device_type != 0) {
@@ -1970,6 +1965,20 @@ static void falcon_probe_spi_devices(struct efx_nic *efx)
 				       large_eeprom_type);
 }
 
+static unsigned int falcon_a1_mem_map_size(struct efx_nic *efx)
+{
+	return 0x20000;
+}
+
+static unsigned int falcon_b0_mem_map_size(struct efx_nic *efx)
+{
+	/* Map everything up to and including the RSS indirection table.
+	 * The PCI core takes care of mapping the MSI-X tables.
+	 */
+	return FR_BZ_RX_INDIRECTION_TBL +
+		FR_BZ_RX_INDIRECTION_TBL_STEP * FR_BZ_RX_INDIRECTION_TBL_ROWS;
+}
+
 static int falcon_probe_nic(struct efx_nic *efx)
 {
 	struct falcon_nic_data *nic_data;
@@ -2060,6 +2069,8 @@ static int falcon_probe_nic(struct efx_nic *efx)
 		goto fail5;
 	}
 
+	efx->max_channels = (efx_nic_rev(efx) <= EFX_REV_FALCON_A1 ? 4 :
+			     EFX_MAX_CHANNELS);
 	efx->timer_quantum_ns = 4968; /* 621 cycles */
 
 	/* Initialise I2C adapter */
@@ -2339,6 +2350,7 @@ static int falcon_set_wol(struct efx_nic *efx, u32 type)
  */
 
 const struct efx_nic_type falcon_a1_nic_type = {
+	.mem_map_size = falcon_a1_mem_map_size,
 	.probe = falcon_probe_nic,
 	.remove = falcon_remove_nic,
 	.init = falcon_init_nic,
@@ -2390,8 +2402,22 @@ const struct efx_nic_type falcon_a1_nic_type = {
 	.ev_read_ack = efx_farch_ev_read_ack,
 	.ev_test_generate = efx_farch_ev_test_generate,
 
+	/* We don't expose the filter table on Falcon A1 as it is not
+	 * mapped into function 0, but these implementations still
+	 * work with a degenerate case of all tables set to size 0.
+	 */
+	.filter_table_probe = efx_farch_filter_table_probe,
+	.filter_table_restore = efx_farch_filter_table_restore,
+	.filter_table_remove = efx_farch_filter_table_remove,
+	.filter_insert = efx_farch_filter_insert,
+	.filter_remove_safe = efx_farch_filter_remove_safe,
+	.filter_get_safe = efx_farch_filter_get_safe,
+	.filter_clear_rx = efx_farch_filter_clear_rx,
+	.filter_count_rx_used = efx_farch_filter_count_rx_used,
+	.filter_get_rx_id_limit = efx_farch_filter_get_rx_id_limit,
+	.filter_get_rx_ids = efx_farch_filter_get_rx_ids,
+
 	.revision = EFX_REV_FALCON_A1,
-	.mem_map_size = 0x20000,
 	.txd_ptr_tbl_base = FR_AA_TX_DESC_PTR_TBL_KER,
 	.rxd_ptr_tbl_base = FR_AA_RX_DESC_PTR_TBL_KER,
 	.buf_tbl_base = FR_AA_BUF_FULL_TBL_KER,
@@ -2401,13 +2427,13 @@ const struct efx_nic_type falcon_a1_nic_type = {
 	.rx_buffer_padding = 0x24,
 	.can_rx_scatter = false,
 	.max_interrupt_mode = EFX_INT_MODE_MSI,
-	.phys_addr_channels = 4,
 	.timer_period_max =  1 << FRF_AB_TC_TIMER_VAL_WIDTH,
 	.offload_features = NETIF_F_IP_CSUM,
 	.mcdi_max_ver = -1,
 };
 
 const struct efx_nic_type falcon_b0_nic_type = {
+	.mem_map_size = falcon_b0_mem_map_size,
 	.probe = falcon_probe_nic,
 	.remove = falcon_remove_nic,
 	.init = falcon_init_nic,
@@ -2459,14 +2485,23 @@ const struct efx_nic_type falcon_b0_nic_type = {
 	.ev_process = efx_farch_ev_process,
 	.ev_read_ack = efx_farch_ev_read_ack,
 	.ev_test_generate = efx_farch_ev_test_generate,
+	.filter_table_probe = efx_farch_filter_table_probe,
+	.filter_table_restore = efx_farch_filter_table_restore,
+	.filter_table_remove = efx_farch_filter_table_remove,
+	.filter_update_rx_scatter = efx_farch_filter_update_rx_scatter,
+	.filter_insert = efx_farch_filter_insert,
+	.filter_remove_safe = efx_farch_filter_remove_safe,
+	.filter_get_safe = efx_farch_filter_get_safe,
+	.filter_clear_rx = efx_farch_filter_clear_rx,
+	.filter_count_rx_used = efx_farch_filter_count_rx_used,
+	.filter_get_rx_id_limit = efx_farch_filter_get_rx_id_limit,
+	.filter_get_rx_ids = efx_farch_filter_get_rx_ids,
+#ifdef CONFIG_RFS_ACCEL
+	.filter_rfs_insert = efx_farch_filter_rfs_insert,
+	.filter_rfs_expire_one = efx_farch_filter_rfs_expire_one,
+#endif
 
 	.revision = EFX_REV_FALCON_B0,
-	/* Map everything up to and including the RSS indirection
-	 * table.  Don't map MSI-X table, MSI-X PBA since Linux
-	 * requires that they not be mapped.  */
-	.mem_map_size = (FR_BZ_RX_INDIRECTION_TBL +
-			 FR_BZ_RX_INDIRECTION_TBL_STEP *
-			 FR_BZ_RX_INDIRECTION_TBL_ROWS),
 	.txd_ptr_tbl_base = FR_BZ_TX_DESC_PTR_TBL,
 	.rxd_ptr_tbl_base = FR_BZ_RX_DESC_PTR_TBL,
 	.buf_tbl_base = FR_BZ_BUF_FULL_TBL,
@@ -2477,11 +2512,9 @@ const struct efx_nic_type falcon_b0_nic_type = {
 	.rx_buffer_padding = 0,
 	.can_rx_scatter = true,
 	.max_interrupt_mode = EFX_INT_MODE_MSIX,
-	.phys_addr_channels = 32, /* Hardware limit is 64, but the legacy
-				   * interrupt handler only supports 32
-				   * channels */
 	.timer_period_max =  1 << FRF_AB_TC_TIMER_VAL_WIDTH,
 	.offload_features = NETIF_F_IP_CSUM | NETIF_F_RXHASH | NETIF_F_NTUPLE,
 	.mcdi_max_ver = -1,
+	.max_rx_ip_filters = FR_BZ_RX_FILTER_TBL0_ROWS,
 };
 

drivers/net/ethernet/sfc/filter.h

@@ -11,32 +11,49 @@
 #define EFX_FILTER_H
 
 #include <linux/types.h>
+#include <linux/if_ether.h>
+#include <asm/byteorder.h>
 
 /**
- * enum efx_filter_type - type of hardware filter
- * @EFX_FILTER_TCP_FULL: Matching TCP/IPv4 4-tuple
- * @EFX_FILTER_TCP_WILD: Matching TCP/IPv4 destination (host, port)
- * @EFX_FILTER_UDP_FULL: Matching UDP/IPv4 4-tuple
- * @EFX_FILTER_UDP_WILD: Matching UDP/IPv4 destination (host, port)
- * @EFX_FILTER_MAC_FULL: Matching Ethernet destination MAC address, VID
- * @EFX_FILTER_MAC_WILD: Matching Ethernet destination MAC address
- * @EFX_FILTER_UC_DEF: Matching all otherwise unmatched unicast
- * @EFX_FILTER_MC_DEF: Matching all otherwise unmatched multicast
- * @EFX_FILTER_UNSPEC: Match type is unspecified
+ * enum efx_filter_match_flags - Flags for hardware filter match type
+ * @EFX_FILTER_MATCH_REM_HOST: Match by remote IP host address
+ * @EFX_FILTER_MATCH_LOC_HOST: Match by local IP host address
+ * @EFX_FILTER_MATCH_REM_MAC: Match by remote MAC address
+ * @EFX_FILTER_MATCH_REM_PORT: Match by remote TCP/UDP port
+ * @EFX_FILTER_MATCH_LOC_MAC: Match by local MAC address
+ * @EFX_FILTER_MATCH_LOC_PORT: Match by local TCP/UDP port
+ * @EFX_FILTER_MATCH_ETHER_TYPE: Match by Ether-type
+ * @EFX_FILTER_MATCH_INNER_VID: Match by inner VLAN ID
+ * @EFX_FILTER_MATCH_OUTER_VID: Match by outer VLAN ID
+ * @EFX_FILTER_MATCH_IP_PROTO: Match by IP transport protocol
+ * @EFX_FILTER_MATCH_LOC_MAC_IG: Match by local MAC address I/G bit.
+ *	Used for RX default unicast and multicast/broadcast filters.
  *
- * Falcon NICs only support the TCP/IPv4 and UDP/IPv4 filter types.
+ * Only some combinations are supported, depending on NIC type:
+ *
+ * - Falcon supports RX filters matching by {TCP,UDP}/IPv4 4-tuple or
+ *   local 2-tuple (only implemented for Falcon B0)
+ *
+ * - Siena supports RX and TX filters matching by {TCP,UDP}/IPv4 4-tuple
+ *   or local 2-tuple, or local MAC with or without outer VID, and RX
+ *   default filters
+ *
+ * - Huntington supports filter matching controlled by firmware, potentially
+ *   using {TCP,UDP}/IPv{4,6} 4-tuple or local 2-tuple, local MAC or I/G bit,
+ *   with or without outer and inner VID
  */
-enum efx_filter_type {
-	EFX_FILTER_TCP_FULL = 0,
-	EFX_FILTER_TCP_WILD,
-	EFX_FILTER_UDP_FULL,
-	EFX_FILTER_UDP_WILD,
-	EFX_FILTER_MAC_FULL = 4,
-	EFX_FILTER_MAC_WILD,
-	EFX_FILTER_UC_DEF = 8,
-	EFX_FILTER_MC_DEF,
-	EFX_FILTER_TYPE_COUNT,		/* number of specific types */
-	EFX_FILTER_UNSPEC = 0xf,
+enum efx_filter_match_flags {
+	EFX_FILTER_MATCH_REM_HOST =	0x0001,
+	EFX_FILTER_MATCH_LOC_HOST =	0x0002,
+	EFX_FILTER_MATCH_REM_MAC =	0x0004,
+	EFX_FILTER_MATCH_REM_PORT =	0x0008,
+	EFX_FILTER_MATCH_LOC_MAC =	0x0010,
+	EFX_FILTER_MATCH_LOC_PORT =	0x0020,
+	EFX_FILTER_MATCH_ETHER_TYPE =	0x0040,
+	EFX_FILTER_MATCH_INNER_VID =	0x0080,
+	EFX_FILTER_MATCH_OUTER_VID =	0x0100,
+	EFX_FILTER_MATCH_IP_PROTO =	0x0200,
+	EFX_FILTER_MATCH_LOC_MAC_IG =	0x0400,
 };
 
 /**
@@ -61,37 +78,75 @@ enum efx_filter_priority {
  *	according to the indirection table.
  * @EFX_FILTER_FLAG_RX_SCATTER: Enable DMA scatter on the receiving
  *	queue.
+ * @EFX_FILTER_FLAG_RX_STACK: Indicates a filter inserted for the
+ *	network stack.  The filter must have a priority of
+ *	%EFX_FILTER_PRI_REQUIRED.  It can be steered by a replacement
+ *	request with priority %EFX_FILTER_PRI_MANUAL, and a removal
+ *	request with priority %EFX_FILTER_PRI_MANUAL will reset the
+ *	steering (but not remove the filter).
  * @EFX_FILTER_FLAG_RX: Filter is for RX
  * @EFX_FILTER_FLAG_TX: Filter is for TX
  */
 enum efx_filter_flags {
 	EFX_FILTER_FLAG_RX_RSS = 0x01,
 	EFX_FILTER_FLAG_RX_SCATTER = 0x02,
+	EFX_FILTER_FLAG_RX_STACK = 0x04,
 	EFX_FILTER_FLAG_RX = 0x08,
 	EFX_FILTER_FLAG_TX = 0x10,
 };
 
 /**
  * struct efx_filter_spec - specification for a hardware filter
- * @type: Type of match to be performed, from &enum efx_filter_type
+ * @match_flags: Match type flags, from &enum efx_filter_match_flags
  * @priority: Priority of the filter, from &enum efx_filter_priority
  * @flags: Miscellaneous flags, from &enum efx_filter_flags
- * @dmaq_id: Source/target queue index
- * @data: Match data (type-dependent)
+ * @rss_context: RSS context to use, if %EFX_FILTER_FLAG_RX_RSS is set
+ * @dmaq_id: Source/target queue index, or %EFX_FILTER_RX_DMAQ_ID_DROP for
+ *	an RX drop filter
+ * @outer_vid: Outer VLAN ID to match, if %EFX_FILTER_MATCH_OUTER_VID is set
+ * @inner_vid: Inner VLAN ID to match, if %EFX_FILTER_MATCH_INNER_VID is set
+ * @loc_mac: Local MAC address to match, if %EFX_FILTER_MATCH_LOC_MAC or
+ *	%EFX_FILTER_MATCH_LOC_MAC_IG is set
+ * @rem_mac: Remote MAC address to match, if %EFX_FILTER_MATCH_REM_MAC is set
+ * @ether_type: Ether-type to match, if %EFX_FILTER_MATCH_ETHER_TYPE is set
+ * @ip_proto: IP transport protocol to match, if %EFX_FILTER_MATCH_IP_PROTO
+ *	is set
+ * @loc_host: Local IP host to match, if %EFX_FILTER_MATCH_LOC_HOST is set
+ * @rem_host: Remote IP host to match, if %EFX_FILTER_MATCH_REM_HOST is set
+ * @loc_port: Local TCP/UDP port to match, if %EFX_FILTER_MATCH_LOC_PORT is set
+ * @rem_port: Remote TCP/UDP port to match, if %EFX_FILTER_MATCH_REM_PORT is set
  *
- * Use the efx_filter_set_*() functions to initialise the @type and
- * @data fields.
+ * The efx_filter_init_rx() or efx_filter_init_tx() function *must* be
+ * used to initialise the structure.  The efx_filter_set_*() functions
+ * may then be used to set @rss_context, @match_flags and related
+ * fields.
  *
  * The @priority field is used by software to determine whether a new
  * filter may replace an old one.  The hardware priority of a filter
- * depends on the filter type.
+ * depends on which fields are matched.
  */
 struct efx_filter_spec {
-	u8	type:4;
-	u8	priority:4;
-	u8	flags;
-	u16	dmaq_id;
-	u32	data[3];
+	u32	match_flags:12;
+	u32	priority:2;
+	u32	flags:6;
+	u32	dmaq_id:12;
+	u32	rss_context;
+	__be16	outer_vid __aligned(4); /* allow jhash2() of match values */
+	__be16	inner_vid;
+	u8	loc_mac[ETH_ALEN];
+	u8	rem_mac[ETH_ALEN];
+	__be16	ether_type;
+	u8	ip_proto;
+	__be32	loc_host[4];
+	__be32	rem_host[4];
+	__be16	loc_port;
+	__be16	rem_port;
+	/* total 64 bytes */
+};
+
+enum {
+	EFX_FILTER_RSS_CONTEXT_DEFAULT = 0xffffffff,
+	EFX_FILTER_RX_DMAQ_ID_DROP = 0xfff
 };
 
 static inline void efx_filter_init_rx(struct efx_filter_spec *spec,
@@ -99,39 +154,116 @@ static inline void efx_filter_init_rx(struct efx_filter_spec *spec,
 				      enum efx_filter_flags flags,
 				      unsigned rxq_id)
 {
-	spec->type = EFX_FILTER_UNSPEC;
+	memset(spec, 0, sizeof(*spec));
 	spec->priority = priority;
 	spec->flags = EFX_FILTER_FLAG_RX | flags;
+	spec->rss_context = EFX_FILTER_RSS_CONTEXT_DEFAULT;
 	spec->dmaq_id = rxq_id;
 }
 
 static inline void efx_filter_init_tx(struct efx_filter_spec *spec,
 				      unsigned txq_id)
 {
-	spec->type = EFX_FILTER_UNSPEC;
+	memset(spec, 0, sizeof(*spec));
 	spec->priority = EFX_FILTER_PRI_REQUIRED;
 	spec->flags = EFX_FILTER_FLAG_TX;
 	spec->dmaq_id = txq_id;
 }
 
-extern int efx_filter_set_ipv4_local(struct efx_filter_spec *spec, u8 proto,
-				     __be32 host, __be16 port);
-extern int efx_filter_get_ipv4_local(const struct efx_filter_spec *spec,
-				     u8 *proto, __be32 *host, __be16 *port);
-extern int efx_filter_set_ipv4_full(struct efx_filter_spec *spec, u8 proto,
-				    __be32 host, __be16 port,
-				    __be32 rhost, __be16 rport);
-extern int efx_filter_get_ipv4_full(const struct efx_filter_spec *spec,
-				    u8 *proto, __be32 *host, __be16 *port,
-				    __be32 *rhost, __be16 *rport);
-extern int efx_filter_set_eth_local(struct efx_filter_spec *spec,
-				    u16 vid, const u8 *addr);
-extern int efx_filter_get_eth_local(const struct efx_filter_spec *spec,
-				    u16 *vid, u8 *addr);
-extern int efx_filter_set_uc_def(struct efx_filter_spec *spec);
-extern int efx_filter_set_mc_def(struct efx_filter_spec *spec);
+/**
+ * efx_filter_set_ipv4_local - specify IPv4 host, transport protocol and port
+ * @spec: Specification to initialise
+ * @proto: Transport layer protocol number
+ * @host: Local host address (network byte order)
+ * @port: Local port (network byte order)
+ */
+static inline int
+efx_filter_set_ipv4_local(struct efx_filter_spec *spec, u8 proto,
+			  __be32 host, __be16 port)
+{
+	spec->match_flags |=
+		EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_IP_PROTO |
+		EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_LOC_PORT;
+	spec->ether_type = htons(ETH_P_IP);
+	spec->ip_proto = proto;
+	spec->loc_host[0] = host;
+	spec->loc_port = port;
+	return 0;
+}
+
+/**
+ * efx_filter_set_ipv4_full - specify IPv4 hosts, transport protocol and ports
+ * @spec: Specification to initialise
+ * @proto: Transport layer protocol number
+ * @lhost: Local host address (network byte order)
+ * @lport: Local port (network byte order)
+ * @rhost: Remote host address (network byte order)
+ * @rport: Remote port (network byte order)
+ */
+static inline int
+efx_filter_set_ipv4_full(struct efx_filter_spec *spec, u8 proto,
+			 __be32 lhost, __be16 lport,
+			 __be32 rhost, __be16 rport)
+{
+	spec->match_flags |=
+		EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_IP_PROTO |
+		EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_LOC_PORT |
+		EFX_FILTER_MATCH_REM_HOST | EFX_FILTER_MATCH_REM_PORT;
+	spec->ether_type = htons(ETH_P_IP);
+	spec->ip_proto = proto;
+	spec->loc_host[0] = lhost;
+	spec->loc_port = lport;
+	spec->rem_host[0] = rhost;
+	spec->rem_port = rport;
+	return 0;
+}
+
 enum {
 	EFX_FILTER_VID_UNSPEC = 0xffff,
 };
 
+/**
+ * efx_filter_set_eth_local - specify local Ethernet address and/or VID
+ * @spec: Specification to initialise
+ * @vid: Outer VLAN ID to match, or %EFX_FILTER_VID_UNSPEC
+ * @addr: Local Ethernet MAC address, or %NULL
+ */
+static inline int efx_filter_set_eth_local(struct efx_filter_spec *spec,
+					   u16 vid, const u8 *addr)
+{
+	if (vid == EFX_FILTER_VID_UNSPEC && addr == NULL)
+		return -EINVAL;
+
+	if (vid != EFX_FILTER_VID_UNSPEC) {
+		spec->match_flags |= EFX_FILTER_MATCH_OUTER_VID;
+		spec->outer_vid = htons(vid);
+	}
+	if (addr != NULL) {
+		spec->match_flags |= EFX_FILTER_MATCH_LOC_MAC;
+		memcpy(spec->loc_mac, addr, ETH_ALEN);
+	}
+	return 0;
+}
+
+/**
+ * efx_filter_set_uc_def - specify matching otherwise-unmatched unicast
+ * @spec: Specification to initialise
+ */
+static inline int efx_filter_set_uc_def(struct efx_filter_spec *spec)
+{
+	spec->match_flags |= EFX_FILTER_MATCH_LOC_MAC_IG;
+	return 0;
+}
+
+/**
+ * efx_filter_set_mc_def - specify matching otherwise-unmatched multicast
+ * @spec: Specification to initialise
+ */
+static inline int efx_filter_set_mc_def(struct efx_filter_spec *spec)
+{
+	spec->match_flags |= EFX_FILTER_MATCH_LOC_MAC_IG;
+	spec->loc_mac[0] = 1;
+	return 0;
+}
+
 #endif /* EFX_FILTER_H */

drivers/net/ethernet/sfc/mcdi.h

@@ -128,6 +128,60 @@ extern void efx_mcdi_sensor_event(struct efx_nic *efx, efx_qword_t *ev);
 	EFX_POPULATE_DWORD_1(*_MCDI_DWORD(_buf, _field), EFX_DWORD_0, _value)
 #define MCDI_DWORD(_buf, _field)					\
 	EFX_DWORD_FIELD(*_MCDI_DWORD(_buf, _field), EFX_DWORD_0)
+#define MCDI_POPULATE_DWORD_1(_buf, _field, _name1, _value1)		\
+	EFX_POPULATE_DWORD_1(*_MCDI_DWORD(_buf, _field),		\
+			     MC_CMD_ ## _name1, _value1)
+#define MCDI_POPULATE_DWORD_2(_buf, _field, _name1, _value1,		\
+			      _name2, _value2)				\
+	EFX_POPULATE_DWORD_2(*_MCDI_DWORD(_buf, _field),		\
+			     MC_CMD_ ## _name1, _value1,		\
+			     MC_CMD_ ## _name2, _value2)
+#define MCDI_POPULATE_DWORD_3(_buf, _field, _name1, _value1,		\
+			      _name2, _value2, _name3, _value3)		\
+	EFX_POPULATE_DWORD_3(*_MCDI_DWORD(_buf, _field),		\
+			     MC_CMD_ ## _name1, _value1,		\
+			     MC_CMD_ ## _name2, _value2,		\
+			     MC_CMD_ ## _name3, _value3)
+#define MCDI_POPULATE_DWORD_4(_buf, _field, _name1, _value1,		\
+			      _name2, _value2, _name3, _value3,		\
+			      _name4, _value4)				\
+	EFX_POPULATE_DWORD_4(*_MCDI_DWORD(_buf, _field),		\
+			     MC_CMD_ ## _name1, _value1,		\
+			     MC_CMD_ ## _name2, _value2,		\
+			     MC_CMD_ ## _name3, _value3,		\
+			     MC_CMD_ ## _name4, _value4)
+#define MCDI_POPULATE_DWORD_5(_buf, _field, _name1, _value1,		\
+			      _name2, _value2, _name3, _value3,		\
+			      _name4, _value4, _name5, _value5)		\
+	EFX_POPULATE_DWORD_5(*_MCDI_DWORD(_buf, _field),		\
+			     MC_CMD_ ## _name1, _value1,		\
+			     MC_CMD_ ## _name2, _value2,		\
+			     MC_CMD_ ## _name3, _value3,		\
+			     MC_CMD_ ## _name4, _value4,		\
+			     MC_CMD_ ## _name5, _value5)
+#define MCDI_POPULATE_DWORD_6(_buf, _field, _name1, _value1,		\
+			      _name2, _value2, _name3, _value3,		\
+			      _name4, _value4, _name5, _value5,		\
+			      _name6, _value6)				\
+	EFX_POPULATE_DWORD_6(*_MCDI_DWORD(_buf, _field),		\
+			     MC_CMD_ ## _name1, _value1,		\
+			     MC_CMD_ ## _name2, _value2,		\
+			     MC_CMD_ ## _name3, _value3,		\
+			     MC_CMD_ ## _name4, _value4,		\
+			     MC_CMD_ ## _name5, _value5,		\
+			     MC_CMD_ ## _name6, _value6)
+#define MCDI_POPULATE_DWORD_7(_buf, _field, _name1, _value1,		\
+			      _name2, _value2, _name3, _value3,		\
+			      _name4, _value4, _name5, _value5,		\
+			      _name6, _value6, _name7, _value7)		\
+	EFX_POPULATE_DWORD_7(*_MCDI_DWORD(_buf, _field),		\
+			     MC_CMD_ ## _name1, _value1,		\
+			     MC_CMD_ ## _name2, _value2,		\
+			     MC_CMD_ ## _name3, _value3,		\
+			     MC_CMD_ ## _name4, _value4,		\
+			     MC_CMD_ ## _name5, _value5,		\
+			     MC_CMD_ ## _name6, _value6,		\
+			     MC_CMD_ ## _name7, _value7)
 #define MCDI_SET_QWORD(_buf, _field, _value)				\
 	do {								\
 		EFX_POPULATE_DWORD_1(_MCDI_DWORD(_buf, _field)[0],	\

drivers/net/ethernet/sfc/mcdi_port.c

@@ -861,7 +861,7 @@ void efx_mcdi_process_link_change(struct efx_nic *efx, efx_qword_t *ev)
 
 int efx_mcdi_set_mac(struct efx_nic *efx)
 {
-	u32 reject, fcntl;
+	u32 fcntl;
 	MCDI_DECLARE_BUF(cmdbytes, MC_CMD_SET_MAC_IN_LEN);
 
 	BUILD_BUG_ON(MC_CMD_SET_MAC_OUT_LEN != 0);
@@ -873,12 +873,9 @@ int efx_mcdi_set_mac(struct efx_nic *efx)
 			EFX_MAX_FRAME_LEN(efx->net_dev->mtu));
 	MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_DRAIN, 0);
 
-	/* The MCDI command provides for controlling accept/reject
-	 * of broadcast packets too, but the driver doesn't currently
-	 * expose this. */
-	reject = (efx->promiscuous) ? 0 :
-		(1 << MC_CMD_SET_MAC_IN_REJECT_UNCST_LBN);
-	MCDI_SET_DWORD(cmdbytes, SET_MAC_IN_REJECT, reject);
+	/* Set simple MAC filter for Siena */
+	MCDI_POPULATE_DWORD_1(cmdbytes, SET_MAC_IN_REJECT,
+			      SET_MAC_IN_REJECT_UNCST, efx->unicast_filter);
 
 	switch (efx->wanted_fc) {
 	case EFX_FC_RX | EFX_FC_TX:
@@ -926,21 +923,19 @@ static int efx_mcdi_mac_stats(struct efx_nic *efx, dma_addr_t dma_addr,
 {
 	MCDI_DECLARE_BUF(inbuf, MC_CMD_MAC_STATS_IN_LEN);
 	int rc;
-	efx_dword_t *cmd_ptr;
 	int period = enable ? 1000 : 0;
 
 	BUILD_BUG_ON(MC_CMD_MAC_STATS_OUT_DMA_LEN != 0);
 
 	MCDI_SET_QWORD(inbuf, MAC_STATS_IN_DMA_ADDR, dma_addr);
-	cmd_ptr = (efx_dword_t *)MCDI_PTR(inbuf, MAC_STATS_IN_CMD);
-	EFX_POPULATE_DWORD_7(*cmd_ptr,
-			     MC_CMD_MAC_STATS_IN_DMA, !!enable,
-			     MC_CMD_MAC_STATS_IN_CLEAR, clear,
-			     MC_CMD_MAC_STATS_IN_PERIODIC_CHANGE, 1,
-			     MC_CMD_MAC_STATS_IN_PERIODIC_ENABLE, !!enable,
-			     MC_CMD_MAC_STATS_IN_PERIODIC_CLEAR, 0,
-			     MC_CMD_MAC_STATS_IN_PERIODIC_NOEVENT, 1,
-			     MC_CMD_MAC_STATS_IN_PERIOD_MS, period);
+	MCDI_POPULATE_DWORD_7(inbuf, MAC_STATS_IN_CMD,
+			      MAC_STATS_IN_DMA, !!enable,
+			      MAC_STATS_IN_CLEAR, clear,
+			      MAC_STATS_IN_PERIODIC_CHANGE, 1,
+			      MAC_STATS_IN_PERIODIC_ENABLE, !!enable,
+			      MAC_STATS_IN_PERIODIC_CLEAR, 0,
+			      MAC_STATS_IN_PERIODIC_NOEVENT, 1,
+			      MAC_STATS_IN_PERIOD_MS, period);
 	MCDI_SET_DWORD(inbuf, MAC_STATS_IN_DMA_LEN, dma_len);
 
 	rc = efx_mcdi_rpc(efx, MC_CMD_MAC_STATS, inbuf, sizeof(inbuf),

drivers/net/ethernet/sfc/mtd.c

@@ -22,9 +22,10 @@
 #include "mcdi.h"
 #include "mcdi_pcol.h"
 
-#define EFX_SPI_VERIFY_BUF_LEN 16
+#define FALCON_SPI_VERIFY_BUF_LEN 16
 
 struct efx_mtd_partition {
+	struct list_head node;
 	struct mtd_info mtd;
 	union {
 		struct {
@@ -32,8 +33,12 @@ struct efx_mtd_partition {
 			u8 nvram_type;
 			u16 fw_subtype;
 		} mcdi;
-		size_t offset;
+		struct {
+			const struct falcon_spi_device *spi;
+			size_t offset;
+		} falcon;
 	};
+	const char *dev_type_name;
 	const char *type_name;
 	char name[IFNAMSIZ + 20];
 };
@@ -47,21 +52,6 @@ struct efx_mtd_ops {
 	int (*sync)(struct mtd_info *mtd);
 };
 
-struct efx_mtd {
-	struct list_head node;
-	struct efx_nic *efx;
-	const struct efx_spi_device *spi;
-	const char *name;
-	const struct efx_mtd_ops *ops;
-	size_t n_parts;
-	struct efx_mtd_partition part[0];
-};
-
-#define efx_for_each_partition(part, efx_mtd)			\
-	for ((part) = &(efx_mtd)->part[0];			\
-	     (part) != &(efx_mtd)->part[(efx_mtd)->n_parts];	\
-	     (part)++)
-
 #define to_efx_mtd_partition(mtd)				\
 	container_of(mtd, struct efx_mtd_partition, mtd)
 
@@ -71,11 +61,10 @@ static int siena_mtd_probe(struct efx_nic *efx);
 /* SPI utilities */
 
 static int
-efx_spi_slow_wait(struct efx_mtd_partition *part, bool uninterruptible)
+falcon_spi_slow_wait(struct efx_mtd_partition *part, bool uninterruptible)
 {
-	struct efx_mtd *efx_mtd = part->mtd.priv;
-	const struct efx_spi_device *spi = efx_mtd->spi;
-	struct efx_nic *efx = efx_mtd->efx;
+	const struct falcon_spi_device *spi = part->falcon.spi;
+	struct efx_nic *efx = part->mtd.priv;
 	u8 status;
 	int rc, i;
 
@@ -93,12 +82,13 @@ efx_spi_slow_wait(struct efx_mtd_partition *part, bool uninterruptible)
 		if (signal_pending(current))
 			return -EINTR;
 	}
-	pr_err("%s: timed out waiting for %s\n", part->name, efx_mtd->name);
+	pr_err("%s: timed out waiting for %s\n",
+	       part->name, part->dev_type_name);
 	return -ETIMEDOUT;
 }
 
 static int
-efx_spi_unlock(struct efx_nic *efx, const struct efx_spi_device *spi)
+falcon_spi_unlock(struct efx_nic *efx, const struct falcon_spi_device *spi)
 {
 	const u8 unlock_mask = (SPI_STATUS_BP2 | SPI_STATUS_BP1 |
 				SPI_STATUS_BP0);
@@ -133,14 +123,13 @@ efx_spi_unlock(struct efx_nic *efx, const struct efx_spi_device *spi)
 }
 
 static int
-efx_spi_erase(struct efx_mtd_partition *part, loff_t start, size_t len)
+falcon_spi_erase(struct efx_mtd_partition *part, loff_t start, size_t len)
 {
-	struct efx_mtd *efx_mtd = part->mtd.priv;
-	const struct efx_spi_device *spi = efx_mtd->spi;
-	struct efx_nic *efx = efx_mtd->efx;
+	const struct falcon_spi_device *spi = part->falcon.spi;
+	struct efx_nic *efx = part->mtd.priv;
 	unsigned pos, block_len;
-	u8 empty[EFX_SPI_VERIFY_BUF_LEN];
-	u8 buffer[EFX_SPI_VERIFY_BUF_LEN];
+	u8 empty[FALCON_SPI_VERIFY_BUF_LEN];
+	u8 buffer[FALCON_SPI_VERIFY_BUF_LEN];
 	int rc;
 
 	if (len != spi->erase_size)
@@ -149,7 +138,7 @@ efx_spi_erase(struct efx_mtd_partition *part, loff_t start, size_t len)
 	if (spi->erase_command == 0)
 		return -EOPNOTSUPP;
 
-	rc = efx_spi_unlock(efx, spi);
+	rc = falcon_spi_unlock(efx, spi);
 	if (rc)
 		return rc;
 	rc = falcon_spi_cmd(efx, spi, SPI_WREN, -1, NULL, NULL, 0);
@@ -159,7 +148,7 @@ efx_spi_erase(struct efx_mtd_partition *part, loff_t start, size_t len)
 			    NULL, 0);
 	if (rc)
 		return rc;
-	rc = efx_spi_slow_wait(part, false);
+	rc = falcon_spi_slow_wait(part, false);
 
 	/* Verify the entire region has been wiped */
 	memset(empty, 0xff, sizeof(empty));
@@ -185,10 +174,10 @@ efx_spi_erase(struct efx_mtd_partition *part, loff_t start, size_t len)
 
 static int efx_mtd_erase(struct mtd_info *mtd, struct erase_info *erase)
 {
-	struct efx_mtd *efx_mtd = mtd->priv;
+	struct efx_nic *efx = mtd->priv;
 	int rc;
 
-	rc = efx_mtd->ops->erase(mtd, erase->addr, erase->len);
+	rc = efx->mtd_ops->erase(mtd, erase->addr, erase->len);
 	if (rc == 0) {
 		erase->state = MTD_ERASE_DONE;
 	} else {
@@ -202,13 +191,13 @@ static int efx_mtd_erase(struct mtd_info *mtd, struct erase_info *erase)
 static void efx_mtd_sync(struct mtd_info *mtd)
 {
 	struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
-	struct efx_mtd *efx_mtd = mtd->priv;
+	struct efx_nic *efx = mtd->priv;
 	int rc;
 
-	rc = efx_mtd->ops->sync(mtd);
+	rc = efx->mtd_ops->sync(mtd);
 	if (rc)
 		pr_err("%s: %s sync failed (%d)\n",
-		       part->name, efx_mtd->name, rc);
+		       part->name, part->dev_type_name, rc);
 }
 
 static void efx_mtd_remove_partition(struct efx_mtd_partition *part)
@@ -222,86 +211,84 @@ static void efx_mtd_remove_partition(struct efx_mtd_partition *part)
 		ssleep(1);
 	}
 	WARN_ON(rc);
+	list_del(&part->node);
 }
 
-static void efx_mtd_remove_device(struct efx_mtd *efx_mtd)
+static void efx_mtd_rename_partition(struct efx_mtd_partition *part)
 {
-	struct efx_mtd_partition *part;
+	struct efx_nic *efx = part->mtd.priv;
 
-	efx_for_each_partition(part, efx_mtd)
-		efx_mtd_remove_partition(part);
-	list_del(&efx_mtd->node);
-	kfree(efx_mtd);
-}
-
-static void efx_mtd_rename_device(struct efx_mtd *efx_mtd)
-{
-	struct efx_mtd_partition *part;
-
-	efx_for_each_partition(part, efx_mtd)
-		if (efx_nic_rev(efx_mtd->efx) >= EFX_REV_SIENA_A0)
-			snprintf(part->name, sizeof(part->name),
-				 "%s %s:%02x", efx_mtd->efx->name,
-				 part->type_name, part->mcdi.fw_subtype);
-		else
-			snprintf(part->name, sizeof(part->name),
-				 "%s %s", efx_mtd->efx->name,
-				 part->type_name);
+	if (efx_nic_rev(efx) >= EFX_REV_SIENA_A0)
+		snprintf(part->name, sizeof(part->name), "%s %s:%02x",
+			 efx->name, part->type_name, part->mcdi.fw_subtype);
+	else
+		snprintf(part->name, sizeof(part->name), "%s %s",
+			 efx->name, part->type_name);
 }
 
-static int efx_mtd_probe_device(struct efx_nic *efx, struct efx_mtd *efx_mtd)
+static int efx_mtd_add(struct efx_nic *efx,
+		       struct efx_mtd_partition *parts, size_t n_parts)
 {
 	struct efx_mtd_partition *part;
+	size_t i;
 
-	efx_mtd->efx = efx;
-
-	efx_mtd_rename_device(efx_mtd);
+	for (i = 0; i < n_parts; i++) {
+		part = &parts[i];
 
-	efx_for_each_partition(part, efx_mtd) {
 		part->mtd.writesize = 1;
 
 		part->mtd.owner = THIS_MODULE;
-		part->mtd.priv = efx_mtd;
+		part->mtd.priv = efx;
 		part->mtd.name = part->name;
 		part->mtd._erase = efx_mtd_erase;
-		part->mtd._read = efx_mtd->ops->read;
-		part->mtd._write = efx_mtd->ops->write;
+		part->mtd._read = efx->mtd_ops->read;
+		part->mtd._write = efx->mtd_ops->write;
 		part->mtd._sync = efx_mtd_sync;
 
+		efx_mtd_rename_partition(part);
+
 		if (mtd_device_register(&part->mtd, NULL, 0))
 			goto fail;
+
+		/* Add to list in order - efx_mtd_remove() depends on this */
+		list_add_tail(&part->node, &efx->mtd_list);
 	}
 
-	list_add(&efx_mtd->node, &efx->mtd_list);
 	return 0;
 
 fail:
-	while (part != &efx_mtd->part[0]) {
-		--part;
-		efx_mtd_remove_partition(part);
-	}
+	while (i--)
+		efx_mtd_remove_partition(&parts[i]);
 	/* Failure is unlikely here, but probably means we're out of memory */
 	return -ENOMEM;
 }
 
 void efx_mtd_remove(struct efx_nic *efx)
 {
-	struct efx_mtd *efx_mtd, *next;
+	struct efx_mtd_partition *parts, *part, *next;
 
 	WARN_ON(efx_dev_registered(efx));
 
-	list_for_each_entry_safe(efx_mtd, next, &efx->mtd_list, node)
-		efx_mtd_remove_device(efx_mtd);
+	if (list_empty(&efx->mtd_list))
+		return;
+
+	parts = list_first_entry(&efx->mtd_list, struct efx_mtd_partition,
+				 node);
+
+	list_for_each_entry_safe(part, next, &efx->mtd_list, node)
+		efx_mtd_remove_partition(part);
+
+	kfree(parts);
 }
 
 void efx_mtd_rename(struct efx_nic *efx)
 {
-	struct efx_mtd *efx_mtd;
+	struct efx_mtd_partition *part;
 
 	ASSERT_RTNL();
 
-	list_for_each_entry(efx_mtd, &efx->mtd_list, node)
-		efx_mtd_rename_device(efx_mtd);
+	list_for_each_entry(part, &efx->mtd_list, node)
+		efx_mtd_rename_partition(part);
 }
 
 int efx_mtd_probe(struct efx_nic *efx)
@@ -318,17 +305,15 @@ static int falcon_mtd_read(struct mtd_info *mtd, loff_t start,
 			   size_t len, size_t *retlen, u8 *buffer)
 {
 	struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
-	struct efx_mtd *efx_mtd = mtd->priv;
-	const struct efx_spi_device *spi = efx_mtd->spi;
-	struct efx_nic *efx = efx_mtd->efx;
+	struct efx_nic *efx = mtd->priv;
 	struct falcon_nic_data *nic_data = efx->nic_data;
 	int rc;
 
 	rc = mutex_lock_interruptible(&nic_data->spi_lock);
 	if (rc)
 		return rc;
-	rc = falcon_spi_read(efx, spi, part->offset + start, len,
-			     retlen, buffer);
+	rc = falcon_spi_read(efx, part->falcon.spi, part->falcon.offset + start,
+			     len, retlen, buffer);
 	mutex_unlock(&nic_data->spi_lock);
 	return rc;
 }
@@ -336,15 +321,14 @@ static int falcon_mtd_read(struct mtd_info *mtd, loff_t start,
 static int falcon_mtd_erase(struct mtd_info *mtd, loff_t start, size_t len)
 {
 	struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
-	struct efx_mtd *efx_mtd = mtd->priv;
-	struct efx_nic *efx = efx_mtd->efx;
+	struct efx_nic *efx = mtd->priv;
 	struct falcon_nic_data *nic_data = efx->nic_data;
 	int rc;
 
 	rc = mutex_lock_interruptible(&nic_data->spi_lock);
 	if (rc)
 		return rc;
-	rc = efx_spi_erase(part, part->offset + start, len);
+	rc = falcon_spi_erase(part, part->falcon.offset + start, len);
 	mutex_unlock(&nic_data->spi_lock);
 	return rc;
 }
@@ -353,17 +337,15 @@ static int falcon_mtd_write(struct mtd_info *mtd, loff_t start,
 			    size_t len, size_t *retlen, const u8 *buffer)
 {
 	struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
-	struct efx_mtd *efx_mtd = mtd->priv;
-	const struct efx_spi_device *spi = efx_mtd->spi;
-	struct efx_nic *efx = efx_mtd->efx;
+	struct efx_nic *efx = mtd->priv;
 	struct falcon_nic_data *nic_data = efx->nic_data;
 	int rc;
 
 	rc = mutex_lock_interruptible(&nic_data->spi_lock);
 	if (rc)
 		return rc;
-	rc = falcon_spi_write(efx, spi, part->offset + start, len,
-			      retlen, buffer);
+	rc = falcon_spi_write(efx, part->falcon.spi,
+			      part->falcon.offset + start, len, retlen, buffer);
 	mutex_unlock(&nic_data->spi_lock);
 	return rc;
 }
@@ -371,13 +353,12 @@ static int falcon_mtd_write(struct mtd_info *mtd, loff_t start,
 static int falcon_mtd_sync(struct mtd_info *mtd)
 {
 	struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
-	struct efx_mtd *efx_mtd = mtd->priv;
-	struct efx_nic *efx = efx_mtd->efx;
+	struct efx_nic *efx = mtd->priv;
 	struct falcon_nic_data *nic_data = efx->nic_data;
 	int rc;
 
 	mutex_lock(&nic_data->spi_lock);
-	rc = efx_spi_slow_wait(part, true);
+	rc = falcon_spi_slow_wait(part, true);
 	mutex_unlock(&nic_data->spi_lock);
 	return rc;
 }
@@ -392,66 +373,50 @@ static const struct efx_mtd_ops falcon_mtd_ops = {
 static int falcon_mtd_probe(struct efx_nic *efx)
 {
 	struct falcon_nic_data *nic_data = efx->nic_data;
-	struct efx_spi_device *spi;
-	struct efx_mtd *efx_mtd;
+	struct efx_mtd_partition *parts;
+	struct falcon_spi_device *spi;
+	size_t n_parts;
 	int rc = -ENODEV;
 
 	ASSERT_RTNL();
 
+	efx->mtd_ops = &falcon_mtd_ops;
+
+	/* Allocate space for maximum number of partitions */
+	parts = kcalloc(2, sizeof(*parts), GFP_KERNEL);
+	n_parts = 0;
+
 	spi = &nic_data->spi_flash;
-	if (efx_spi_present(spi) && spi->size > FALCON_FLASH_BOOTCODE_START) {
-		efx_mtd = kzalloc(sizeof(*efx_mtd) + sizeof(efx_mtd->part[0]),
-				  GFP_KERNEL);
-		if (!efx_mtd)
-			return -ENOMEM;
-
-		efx_mtd->spi = spi;
-		efx_mtd->name = "flash";
-		efx_mtd->ops = &falcon_mtd_ops;
-
-		efx_mtd->n_parts = 1;
-		efx_mtd->part[0].mtd.type = MTD_NORFLASH;
-		efx_mtd->part[0].mtd.flags = MTD_CAP_NORFLASH;
-		efx_mtd->part[0].mtd.size = spi->size - FALCON_FLASH_BOOTCODE_START;
-		efx_mtd->part[0].mtd.erasesize = spi->erase_size;
-		efx_mtd->part[0].offset = FALCON_FLASH_BOOTCODE_START;
-		efx_mtd->part[0].type_name = "sfc_flash_bootrom";
-
-		rc = efx_mtd_probe_device(efx, efx_mtd);
-		if (rc) {
-			kfree(efx_mtd);
-			return rc;
-		}
+	if (falcon_spi_present(spi) && spi->size > FALCON_FLASH_BOOTCODE_START) {
+		parts[n_parts].falcon.spi = spi;
+		parts[n_parts].falcon.offset = FALCON_FLASH_BOOTCODE_START;
+		parts[n_parts].dev_type_name = "flash";
+		parts[n_parts].type_name = "sfc_flash_bootrom";
+		parts[n_parts].mtd.type = MTD_NORFLASH;
+		parts[n_parts].mtd.flags = MTD_CAP_NORFLASH;
+		parts[n_parts].mtd.size = spi->size - FALCON_FLASH_BOOTCODE_START;
+		parts[n_parts].mtd.erasesize = spi->erase_size;
+		n_parts++;
 	}
 
 	spi = &nic_data->spi_eeprom;
-	if (efx_spi_present(spi) && spi->size > EFX_EEPROM_BOOTCONFIG_START) {
-		efx_mtd = kzalloc(sizeof(*efx_mtd) + sizeof(efx_mtd->part[0]),
-				  GFP_KERNEL);
-		if (!efx_mtd)
-			return -ENOMEM;
-
-		efx_mtd->spi = spi;
-		efx_mtd->name = "EEPROM";
-		efx_mtd->ops = &falcon_mtd_ops;
-
-		efx_mtd->n_parts = 1;
-		efx_mtd->part[0].mtd.type = MTD_RAM;
-		efx_mtd->part[0].mtd.flags = MTD_CAP_RAM;
-		efx_mtd->part[0].mtd.size =
-			min(spi->size, EFX_EEPROM_BOOTCONFIG_END) -
-			EFX_EEPROM_BOOTCONFIG_START;
-		efx_mtd->part[0].mtd.erasesize = spi->erase_size;
-		efx_mtd->part[0].offset = EFX_EEPROM_BOOTCONFIG_START;
-		efx_mtd->part[0].type_name = "sfc_bootconfig";
-
-		rc = efx_mtd_probe_device(efx, efx_mtd);
-		if (rc) {
-			kfree(efx_mtd);
-			return rc;
-		}
+	if (falcon_spi_present(spi) && spi->size > FALCON_EEPROM_BOOTCONFIG_START) {
+		parts[n_parts].falcon.spi = spi;
+		parts[n_parts].falcon.offset = FALCON_EEPROM_BOOTCONFIG_START;
+		parts[n_parts].dev_type_name = "EEPROM";
+		parts[n_parts].type_name = "sfc_bootconfig";
+		parts[n_parts].mtd.type = MTD_RAM;
+		parts[n_parts].mtd.flags = MTD_CAP_RAM;
+		parts[n_parts].mtd.size =
+			min(spi->size, FALCON_EEPROM_BOOTCONFIG_END) -
+			FALCON_EEPROM_BOOTCONFIG_START;
+		parts[n_parts].mtd.erasesize = spi->erase_size;
+		n_parts++;
 	}
 
+	rc = efx_mtd_add(efx, parts, n_parts);
+	if (rc)
+		kfree(parts);
 	return rc;
 }
 
@@ -461,8 +426,7 @@ static int siena_mtd_read(struct mtd_info *mtd, loff_t start,
 			  size_t len, size_t *retlen, u8 *buffer)
 {
 	struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
-	struct efx_mtd *efx_mtd = mtd->priv;
-	struct efx_nic *efx = efx_mtd->efx;
+	struct efx_nic *efx = mtd->priv;
 	loff_t offset = start;
 	loff_t end = min_t(loff_t, start + len, mtd->size);
 	size_t chunk;
@@ -485,8 +449,7 @@ static int siena_mtd_read(struct mtd_info *mtd, loff_t start,
 static int siena_mtd_erase(struct mtd_info *mtd, loff_t start, size_t len)
 {
 	struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
-	struct efx_mtd *efx_mtd = mtd->priv;
-	struct efx_nic *efx = efx_mtd->efx;
+	struct efx_nic *efx = mtd->priv;
 	loff_t offset = start & ~((loff_t)(mtd->erasesize - 1));
 	loff_t end = min_t(loff_t, start + len, mtd->size);
 	size_t chunk = part->mtd.erasesize;
@@ -517,8 +480,7 @@ static int siena_mtd_write(struct mtd_info *mtd, loff_t start,
 			   size_t len, size_t *retlen, const u8 *buffer)
 {
 	struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
-	struct efx_mtd *efx_mtd = mtd->priv;
-	struct efx_nic *efx = efx_mtd->efx;
+	struct efx_nic *efx = mtd->priv;
 	loff_t offset = start;
 	loff_t end = min_t(loff_t, start + len, mtd->size);
 	size_t chunk;
@@ -548,8 +510,7 @@ static int siena_mtd_write(struct mtd_info *mtd, loff_t start,
 static int siena_mtd_sync(struct mtd_info *mtd)
 {
 	struct efx_mtd_partition *part = to_efx_mtd_partition(mtd);
-	struct efx_mtd *efx_mtd = mtd->priv;
-	struct efx_nic *efx = efx_mtd->efx;
+	struct efx_nic *efx = mtd->priv;
 	int rc = 0;
 
 	if (part->mcdi.updating) {
@@ -589,11 +550,9 @@ static const struct siena_nvram_type_info siena_nvram_types[] = {
 };
 
 static int siena_mtd_probe_partition(struct efx_nic *efx,
-				     struct efx_mtd *efx_mtd,
-				     unsigned int part_id,
+				     struct efx_mtd_partition *part,
 				     unsigned int type)
 {
-	struct efx_mtd_partition *part = &efx_mtd->part[part_id];
 	const struct siena_nvram_type_info *info;
 	size_t size, erase_size;
 	bool protected;
@@ -615,6 +574,7 @@ static int siena_mtd_probe_partition(struct efx_nic *efx,
 		return -ENODEV; /* hide it */
 
 	part->mcdi.nvram_type = type;
+	part->dev_type_name = "Siena NVRAM manager";
 	part->type_name = info->name;
 
 	part->mtd.type = MTD_NORFLASH;
@@ -626,55 +586,54 @@ static int siena_mtd_probe_partition(struct efx_nic *efx,
 }
 
 static int siena_mtd_get_fw_subtypes(struct efx_nic *efx,
-				     struct efx_mtd *efx_mtd)
+				     struct efx_mtd_partition *parts,
+				     size_t n_parts)
 {
-	struct efx_mtd_partition *part;
 	uint16_t fw_subtype_list[
 		MC_CMD_GET_BOARD_CFG_OUT_FW_SUBTYPE_LIST_MAXNUM];
+	size_t i;
 	int rc;
 
 	rc = efx_mcdi_get_board_cfg(efx, NULL, fw_subtype_list, NULL);
 	if (rc)
 		return rc;
 
-	efx_for_each_partition(part, efx_mtd)
-		part->mcdi.fw_subtype = fw_subtype_list[part->mcdi.nvram_type];
+	for (i = 0; i < n_parts; i++)
+		parts[i].mcdi.fw_subtype =
+			fw_subtype_list[parts[i].mcdi.nvram_type];
 
 	return 0;
 }
 
 static int siena_mtd_probe(struct efx_nic *efx)
 {
-	struct efx_mtd *efx_mtd;
-	int rc = -ENODEV;
+	struct efx_mtd_partition *parts;
 	u32 nvram_types;
 	unsigned int type;
+	size_t n_parts;
+	int rc;
 
 	ASSERT_RTNL();
 
+	efx->mtd_ops = &siena_mtd_ops;
+
 	rc = efx_mcdi_nvram_types(efx, &nvram_types);
 	if (rc)
 		return rc;
 
-	efx_mtd = kzalloc(sizeof(*efx_mtd) +
-			  hweight32(nvram_types) * sizeof(efx_mtd->part[0]),
-			  GFP_KERNEL);
-	if (!efx_mtd)
+	parts = kcalloc(hweight32(nvram_types), sizeof(*parts), GFP_KERNEL);
+	if (!parts)
 		return -ENOMEM;
 
-	efx_mtd->name = "Siena NVRAM manager";
-
-	efx_mtd->ops = &siena_mtd_ops;
-
 	type = 0;
-	efx_mtd->n_parts = 0;
+	n_parts = 0;
 
 	while (nvram_types != 0) {
 		if (nvram_types & 1) {
-			rc = siena_mtd_probe_partition(efx, efx_mtd,
-						       efx_mtd->n_parts, type);
+			rc = siena_mtd_probe_partition(efx, &parts[n_parts],
+						       type);
 			if (rc == 0)
-				efx_mtd->n_parts++;
+				n_parts++;
 			else if (rc != -ENODEV)
 				goto fail;
 		}
@@ -682,14 +641,14 @@ static int siena_mtd_probe(struct efx_nic *efx)
 		nvram_types >>= 1;
 	}
 
-	rc = siena_mtd_get_fw_subtypes(efx, efx_mtd);
+	rc = siena_mtd_get_fw_subtypes(efx, parts, n_parts);
 	if (rc)
 		goto fail;
 
-	rc = efx_mtd_probe_device(efx, efx_mtd);
+	rc = efx_mtd_add(efx, parts, n_parts);
 fail:
 	if (rc)
-		kfree(efx_mtd);
+		kfree(parts);
 	return rc;
 }
 

drivers/net/ethernet/sfc/net_driver.h

@@ -30,6 +30,7 @@
 
 #include "enum.h"
 #include "bitfield.h"
+#include "filter.h"
 
 /**************************************************************************
  *
@@ -356,6 +357,7 @@ enum efx_rx_alloc_method {
  * @efx: Associated Efx NIC
  * @channel: Channel instance number
  * @type: Channel type definition
+ * @eventq_init: Event queue initialised flag
  * @enabled: Channel enabled indicator
  * @irq: IRQ number (MSI and MSI-X only)
  * @irq_moderation: IRQ moderation value (in hardware ticks)
@@ -387,6 +389,7 @@ struct efx_channel {
 	struct efx_nic *efx;
 	int channel;
 	const struct efx_channel_type *type;
+	bool eventq_init;
 	bool enabled;
 	int irq;
 	unsigned int irq_moderation;
@@ -674,7 +677,6 @@ union efx_multicast_hash {
 	efx_oword_t oword[EFX_MCAST_HASH_ENTRIES / sizeof(efx_oword_t) / 8];
 };
 
-struct efx_filter_state;
 struct efx_vf;
 struct vfdi_status;
 
@@ -751,8 +753,10 @@ struct vfdi_status;
  * @link_advertising: Autonegotiation advertising flags
  * @link_state: Current state of the link
  * @n_link_state_changes: Number of times the link has changed state
- * @promiscuous: Promiscuous flag. Protected by netif_tx_lock.
- * @multicast_hash: Multicast hash table
+ * @unicast_filter: Flag for Falcon-arch simple unicast filter.
+ *	Protected by @mac_lock.
+ * @multicast_hash: Multicast hash table for Falcon-arch.
+ *	Protected by @mac_lock.
  * @wanted_fc: Wanted flow control flags
  * @fc_disable: When non-zero flow control is disabled. Typically used to
  *	ensure that network back pressure doesn't delay dma queue flushes.
@@ -761,6 +765,11 @@ struct vfdi_status;
  * @loopback_mode: Loopback status
  * @loopback_modes: Supported loopback mode bitmask
  * @loopback_selftest: Offline self-test private state
+ * @filter_lock: Filter table lock
+ * @filter_state: Architecture-dependent filter table state
+ * @rps_flow_id: Flow IDs of filters allocated for accelerated RFS,
+ *	indexed by filter ID
+ * @rps_expire_index: Next index to check for expiry in @rps_flow_id
  * @drain_pending: Count of RX and TX queues that haven't been flushed and drained.
  * @rxq_flush_pending: Count of number of receive queues that need to be flushed.
  *	Decremented when the efx_flush_rx_queue() is called.
@@ -832,6 +841,8 @@ struct efx_nic {
 	unsigned rx_dc_base;
 	unsigned sram_lim_qw;
 	unsigned next_buffer_table;
+
+	unsigned int max_channels;
 	unsigned n_channels;
 	unsigned n_rx_channels;
 	unsigned rss_spread;
@@ -857,6 +868,7 @@ struct efx_nic {
 	struct delayed_work selftest_work;
 
 #ifdef CONFIG_SFC_MTD
+	const struct efx_mtd_ops *mtd_ops;
 	struct list_head mtd_list;
 #endif
 
@@ -883,7 +895,7 @@ struct efx_nic {
 	struct efx_link_state link_state;
 	unsigned int n_link_state_changes;
 
-	bool promiscuous;
+	bool unicast_filter;
 	union efx_multicast_hash multicast_hash;
 	u8 wanted_fc;
 	unsigned fc_disable;
@@ -894,7 +906,12 @@ struct efx_nic {
 
 	void *loopback_selftest;
 
-	struct efx_filter_state *filter_state;
+	spinlock_t filter_lock;
+	void *filter_state;
+#ifdef CONFIG_RFS_ACCEL
+	u32 *rps_flow_id;
+	unsigned int rps_expire_index;
+#endif
 
 	atomic_t drain_pending;
 	atomic_t rxq_flush_pending;
@@ -939,6 +956,7 @@ static inline unsigned int efx_port_num(struct efx_nic *efx)
 
 /**
  * struct efx_nic_type - Efx device type definition
+ * @mem_map_size: Get memory BAR mapped size
  * @probe: Probe the controller
  * @remove: Free resources allocated by probe()
  * @init: Initialise the controller
@@ -1011,8 +1029,25 @@ static inline unsigned int efx_port_num(struct efx_nic *efx)
  * @ev_process: Process events for a queue, up to the given NAPI quota
  * @ev_read_ack: Acknowledge read events on a queue, rearming its IRQ
  * @ev_test_generate: Generate a test event
+ * @filter_table_probe: Probe filter capabilities and set up filter software state
+ * @filter_table_restore: Restore filters removed from hardware
+ * @filter_table_remove: Remove filters from hardware and tear down software state
+ * @filter_update_rx_scatter: Update filters after change to rx scatter setting
+ * @filter_insert: add or replace a filter
+ * @filter_remove_safe: remove a filter by ID, carefully
+ * @filter_get_safe: retrieve a filter by ID, carefully
+ * @filter_clear_rx: remove RX filters by priority
+ * @filter_count_rx_used: Get the number of filters in use at a given priority
+ * @filter_get_rx_id_limit: Get maximum value of a filter id, plus 1
+ * @filter_get_rx_ids: Get list of RX filters at a given priority
+ * @filter_rfs_insert: Add or replace a filter for RFS.  This must be
+ *	atomic.  The hardware change may be asynchronous but should
+ *	not be delayed for long.  It may fail if this can't be done
+ *	atomically.
+ * @filter_rfs_expire_one: Consider expiring a filter inserted for RFS.
+ *	This must check whether the specified table entry is used by RFS
+ *	and that rps_may_expire_flow() returns true for it.
  * @revision: Hardware architecture revision
- * @mem_map_size: Memory BAR mapped size
  * @txd_ptr_tbl_base: TX descriptor ring base address
  * @rxd_ptr_tbl_base: RX descriptor ring base address
  * @buf_tbl_base: Buffer table base address
@@ -1024,14 +1059,13 @@ static inline unsigned int efx_port_num(struct efx_nic *efx)
  * @can_rx_scatter: NIC is able to scatter packet to multiple buffers
  * @max_interrupt_mode: Highest capability interrupt mode supported
  *	from &enum efx_init_mode.
- * @phys_addr_channels: Number of channels with physically addressed
- *	descriptors
  * @timer_period_max: Maximum period of interrupt timer (in ticks)
  * @offload_features: net_device feature flags for protocol offload
  *	features implemented in hardware
  * @mcdi_max_ver: Maximum MCDI version supported
  */
 struct efx_nic_type {
+	unsigned int (*mem_map_size)(struct efx_nic *efx);
 	int (*probe)(struct efx_nic *efx);
 	void (*remove)(struct efx_nic *efx);
 	int (*init)(struct efx_nic *efx);
@@ -1090,9 +1124,34 @@ struct efx_nic_type {
 	int (*ev_process)(struct efx_channel *channel, int quota);
 	void (*ev_read_ack)(struct efx_channel *channel);
 	void (*ev_test_generate)(struct efx_channel *channel);
+	int (*filter_table_probe)(struct efx_nic *efx);
+	void (*filter_table_restore)(struct efx_nic *efx);
+	void (*filter_table_remove)(struct efx_nic *efx);
+	void (*filter_update_rx_scatter)(struct efx_nic *efx);
+	s32 (*filter_insert)(struct efx_nic *efx,
+			     struct efx_filter_spec *spec, bool replace);
+	int (*filter_remove_safe)(struct efx_nic *efx,
+				  enum efx_filter_priority priority,
+				  u32 filter_id);
+	int (*filter_get_safe)(struct efx_nic *efx,
+			       enum efx_filter_priority priority,
+			       u32 filter_id, struct efx_filter_spec *);
+	void (*filter_clear_rx)(struct efx_nic *efx,
+				enum efx_filter_priority priority);
+	u32 (*filter_count_rx_used)(struct efx_nic *efx,
+				    enum efx_filter_priority priority);
+	u32 (*filter_get_rx_id_limit)(struct efx_nic *efx);
+	s32 (*filter_get_rx_ids)(struct efx_nic *efx,
+				 enum efx_filter_priority priority,
+				 u32 *buf, u32 size);
+#ifdef CONFIG_RFS_ACCEL
+	s32 (*filter_rfs_insert)(struct efx_nic *efx,
+				 struct efx_filter_spec *spec);
+	bool (*filter_rfs_expire_one)(struct efx_nic *efx, u32 flow_id,
+				      unsigned int index);
+#endif
 
 	int revision;
-	unsigned int mem_map_size;
 	unsigned int txd_ptr_tbl_base;
 	unsigned int rxd_ptr_tbl_base;
 	unsigned int buf_tbl_base;
@@ -1103,10 +1162,10 @@ struct efx_nic_type {
 	unsigned int rx_buffer_padding;
 	bool can_rx_scatter;
 	unsigned int max_interrupt_mode;
-	unsigned int phys_addr_channels;
 	unsigned int timer_period_max;
 	netdev_features_t offload_features;
 	int mcdi_max_ver;
+	unsigned int max_rx_ip_filters;
 };
 
 /**************************************************************************

drivers/net/ethernet/sfc/nic.h

@@ -184,8 +184,8 @@ struct falcon_nic_data {
 	bool stats_pending;
 	struct timer_list stats_timer;
 	u32 *stats_dma_done;
-	struct efx_spi_device spi_flash;
-	struct efx_spi_device spi_eeprom;
+	struct falcon_spi_device spi_flash;
+	struct falcon_spi_device spi_eeprom;
 	struct mutex spi_lock;
 	struct mutex mdio_lock;
 	bool xmac_poll_required;
@@ -404,6 +404,35 @@ extern int efx_farch_ev_process(struct efx_channel *channel, int quota);
 extern void efx_farch_ev_read_ack(struct efx_channel *channel);
 extern void efx_farch_ev_test_generate(struct efx_channel *channel);
 
+/* Falcon/Siena filter operations */
+extern int efx_farch_filter_table_probe(struct efx_nic *efx);
+extern void efx_farch_filter_table_restore(struct efx_nic *efx);
+extern void efx_farch_filter_table_remove(struct efx_nic *efx);
+extern void efx_farch_filter_update_rx_scatter(struct efx_nic *efx);
+extern s32 efx_farch_filter_insert(struct efx_nic *efx,
+				   struct efx_filter_spec *spec, bool replace);
+extern int efx_farch_filter_remove_safe(struct efx_nic *efx,
+					enum efx_filter_priority priority,
+					u32 filter_id);
+extern int efx_farch_filter_get_safe(struct efx_nic *efx,
+				     enum efx_filter_priority priority,
+				     u32 filter_id, struct efx_filter_spec *);
+extern void efx_farch_filter_clear_rx(struct efx_nic *efx,
+				      enum efx_filter_priority priority);
+extern u32 efx_farch_filter_count_rx_used(struct efx_nic *efx,
+					  enum efx_filter_priority priority);
+extern u32 efx_farch_filter_get_rx_id_limit(struct efx_nic *efx);
+extern s32 efx_farch_filter_get_rx_ids(struct efx_nic *efx,
+				       enum efx_filter_priority priority,
+				       u32 *buf, u32 size);
+#ifdef CONFIG_RFS_ACCEL
+extern s32 efx_farch_filter_rfs_insert(struct efx_nic *efx,
+				       struct efx_filter_spec *spec);
+extern bool efx_farch_filter_rfs_expire_one(struct efx_nic *efx, u32 flow_id,
+					    unsigned int index);
+#endif
+extern void efx_farch_filter_sync_rx_mode(struct efx_nic *efx);
+
 extern bool efx_nic_event_present(struct efx_channel *channel);
 
 /* Some statistics are computed as A - B where A and B each increase

drivers/net/ethernet/sfc/rx.c

@@ -21,6 +21,7 @@
 #include <net/checksum.h>
 #include "net_driver.h"
 #include "efx.h"
+#include "filter.h"
 #include "nic.h"
 #include "selftest.h"
 #include "workarounds.h"
@@ -802,3 +803,96 @@ module_param(rx_refill_threshold, uint, 0444);
 MODULE_PARM_DESC(rx_refill_threshold,
 		 "RX descriptor ring refill threshold (%)");
 
+#ifdef CONFIG_RFS_ACCEL
+
+int efx_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb,
+		   u16 rxq_index, u32 flow_id)
+{
+	struct efx_nic *efx = netdev_priv(net_dev);
+	struct efx_channel *channel;
+	struct efx_filter_spec spec;
+	const struct iphdr *ip;
+	const __be16 *ports;
+	int nhoff;
+	int rc;
+
+	nhoff = skb_network_offset(skb);
+
+	if (skb->protocol == htons(ETH_P_8021Q)) {
+		EFX_BUG_ON_PARANOID(skb_headlen(skb) <
+				    nhoff + sizeof(struct vlan_hdr));
+		if (((const struct vlan_hdr *)skb->data + nhoff)->
+		    h_vlan_encapsulated_proto != htons(ETH_P_IP))
+			return -EPROTONOSUPPORT;
+
+		/* This is IP over 802.1q VLAN.  We can't filter on the
+		 * IP 5-tuple and the vlan together, so just strip the
+		 * vlan header and filter on the IP part.
+		 */
+		nhoff += sizeof(struct vlan_hdr);
+	} else if (skb->protocol != htons(ETH_P_IP)) {
+		return -EPROTONOSUPPORT;
+	}
+
+	/* RFS must validate the IP header length before calling us */
+	EFX_BUG_ON_PARANOID(skb_headlen(skb) < nhoff + sizeof(*ip));
+	ip = (const struct iphdr *)(skb->data + nhoff);
+	if (ip_is_fragment(ip))
+		return -EPROTONOSUPPORT;
+	EFX_BUG_ON_PARANOID(skb_headlen(skb) < nhoff + 4 * ip->ihl + 4);
+	ports = (const __be16 *)(skb->data + nhoff + 4 * ip->ihl);
+
+	efx_filter_init_rx(&spec, EFX_FILTER_PRI_HINT,
+			   efx->rx_scatter ? EFX_FILTER_FLAG_RX_SCATTER : 0,
+			   rxq_index);
+	rc = efx_filter_set_ipv4_full(&spec, ip->protocol,
+				      ip->daddr, ports[1], ip->saddr, ports[0]);
+	if (rc)
+		return rc;
+
+	rc = efx->type->filter_rfs_insert(efx, &spec);
+	if (rc < 0)
+		return rc;
+
+	/* Remember this so we can check whether to expire the filter later */
+	efx->rps_flow_id[rc] = flow_id;
+	channel = efx_get_channel(efx, skb_get_rx_queue(skb));
+	++channel->rfs_filters_added;
+
+	netif_info(efx, rx_status, efx->net_dev,
+		   "steering %s %pI4:%u:%pI4:%u to queue %u [flow %u filter %d]\n",
+		   (ip->protocol == IPPROTO_TCP) ? "TCP" : "UDP",
+		   &ip->saddr, ntohs(ports[0]), &ip->daddr, ntohs(ports[1]),
+		   rxq_index, flow_id, rc);
+
+	return rc;
+}
+
+bool __efx_filter_rfs_expire(struct efx_nic *efx, unsigned int quota)
+{
+	bool (*expire_one)(struct efx_nic *efx, u32 flow_id, unsigned int index);
+	unsigned int index, size;
+	u32 flow_id;
+
+	if (!spin_trylock_bh(&efx->filter_lock))
+		return false;
+
+	expire_one = efx->type->filter_rfs_expire_one;
+	index = efx->rps_expire_index;
+	size = efx->type->max_rx_ip_filters;
+	while (quota--) {
+		flow_id = efx->rps_flow_id[index];
+		if (expire_one(efx, flow_id, index))
+			netif_info(efx, rx_status, efx->net_dev,
+				   "expired filter %d [flow %u]\n",
+				   index, flow_id);
+		if (++index == size)
+			index = 0;
+	}
+	efx->rps_expire_index = index;
+
+	spin_unlock_bh(&efx->filter_lock);
+	return true;
+}
+
+#endif /* CONFIG_RFS_ACCEL */

drivers/net/ethernet/sfc/siena.c

@@ -187,6 +187,12 @@ static void siena_dimension_resources(struct efx_nic *efx)
 	efx_farch_dimension_resources(efx, FR_CZ_BUF_FULL_TBL_ROWS / 2);
 }
 
+static unsigned int siena_mem_map_size(struct efx_nic *efx)
+{
+	return FR_CZ_MC_TREG_SMEM +
+		FR_CZ_MC_TREG_SMEM_STEP * FR_CZ_MC_TREG_SMEM_ROWS;
+}
+
 static int siena_probe_nic(struct efx_nic *efx)
 {
 	struct siena_nic_data *nic_data;
@@ -207,6 +213,8 @@ static int siena_probe_nic(struct efx_nic *efx)
 		goto fail1;
 	}
 
+	efx->max_channels = EFX_MAX_CHANNELS;
+
 	efx_reado(efx, &reg, FR_AZ_CS_DEBUG);
 	efx->port_num = EFX_OWORD_FIELD(reg, FRF_CZ_CS_PORT_NUM) - 1;
 
@@ -495,6 +503,8 @@ static int siena_mac_reconfigure(struct efx_nic *efx)
 		     MC_CMD_SET_MCAST_HASH_IN_HASH0_OFST +
 		     sizeof(efx->multicast_hash));
 
+	efx_farch_filter_sync_rx_mode(efx);
+
 	WARN_ON(!mutex_is_locked(&efx->mac_lock));
 
 	rc = efx_mcdi_set_mac(efx);
@@ -670,6 +680,7 @@ static int siena_mcdi_poll_reboot(struct efx_nic *efx)
  */
 
 const struct efx_nic_type siena_a0_nic_type = {
+	.mem_map_size = siena_mem_map_size,
 	.probe = siena_probe_nic,
 	.remove = siena_remove_nic,
 	.init = siena_init_nic,
@@ -727,10 +738,23 @@ const struct efx_nic_type siena_a0_nic_type = {
 	.ev_process = efx_farch_ev_process,
 	.ev_read_ack = efx_farch_ev_read_ack,
 	.ev_test_generate = efx_farch_ev_test_generate,
+	.filter_table_probe = efx_farch_filter_table_probe,
+	.filter_table_restore = efx_farch_filter_table_restore,
+	.filter_table_remove = efx_farch_filter_table_remove,
+	.filter_update_rx_scatter = efx_farch_filter_update_rx_scatter,
+	.filter_insert = efx_farch_filter_insert,
+	.filter_remove_safe = efx_farch_filter_remove_safe,
+	.filter_get_safe = efx_farch_filter_get_safe,
+	.filter_clear_rx = efx_farch_filter_clear_rx,
+	.filter_count_rx_used = efx_farch_filter_count_rx_used,
+	.filter_get_rx_id_limit = efx_farch_filter_get_rx_id_limit,
+	.filter_get_rx_ids = efx_farch_filter_get_rx_ids,
+#ifdef CONFIG_RFS_ACCEL
+	.filter_rfs_insert = efx_farch_filter_rfs_insert,
+	.filter_rfs_expire_one = efx_farch_filter_rfs_expire_one,
+#endif
 
 	.revision = EFX_REV_SIENA_A0,
-	.mem_map_size = (FR_CZ_MC_TREG_SMEM +
-			 FR_CZ_MC_TREG_SMEM_STEP * FR_CZ_MC_TREG_SMEM_ROWS),
 	.txd_ptr_tbl_base = FR_BZ_TX_DESC_PTR_TBL,
 	.rxd_ptr_tbl_base = FR_BZ_RX_DESC_PTR_TBL,
 	.buf_tbl_base = FR_BZ_BUF_FULL_TBL,
@@ -741,11 +765,9 @@ const struct efx_nic_type siena_a0_nic_type = {
 	.rx_buffer_padding = 0,
 	.can_rx_scatter = true,
 	.max_interrupt_mode = EFX_INT_MODE_MSIX,
-	.phys_addr_channels = 32, /* Hardware limit is 64, but the legacy
-				   * interrupt handler only supports 32
-				   * channels */
 	.timer_period_max = 1 << FRF_CZ_TC_TIMER_VAL_WIDTH,
 	.offload_features = (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
 			     NETIF_F_RXHASH | NETIF_F_NTUPLE),
 	.mcdi_max_ver = 1,
+	.max_rx_ip_filters = FR_BZ_RX_FILTER_TBL0_ROWS,
 };

drivers/net/ethernet/sfc/spi.h

@@ -35,7 +35,7 @@
 #define SPI_STATUS_NRDY 0x01	/* Device busy flag */
 
 /**
- * struct efx_spi_device - an Efx SPI (Serial Peripheral Interface) device
+ * struct falcon_spi_device - a Falcon SPI (Serial Peripheral Interface) device
  * @device_id:		Controller's id for the device
  * @size:		Size (in bytes)
  * @addr_len:		Number of address bytes in read/write commands
@@ -51,7 +51,7 @@
  * @block_size:		Write block size (in bytes).
  *	Write commands are limited to blocks with this size and alignment.
  */
-struct efx_spi_device {
+struct falcon_spi_device {
 	int device_id;
 	unsigned int size;
 	unsigned int addr_len;
@@ -61,21 +61,21 @@ struct efx_spi_device {
 	unsigned int block_size;
 };
 
-static inline bool efx_spi_present(const struct efx_spi_device *spi)
+static inline bool falcon_spi_present(const struct falcon_spi_device *spi)
 {
 	return spi->size != 0;
 }
 
 int falcon_spi_cmd(struct efx_nic *efx,
-		   const struct efx_spi_device *spi, unsigned int command,
+		   const struct falcon_spi_device *spi, unsigned int command,
 		   int address, const void *in, void *out, size_t len);
 int falcon_spi_wait_write(struct efx_nic *efx,
-			  const struct efx_spi_device *spi);
+			  const struct falcon_spi_device *spi);
 int falcon_spi_read(struct efx_nic *efx,
-		    const struct efx_spi_device *spi, loff_t start,
+		    const struct falcon_spi_device *spi, loff_t start,
 		    size_t len, size_t *retlen, u8 *buffer);
 int falcon_spi_write(struct efx_nic *efx,
-		     const struct efx_spi_device *spi, loff_t start,
+		     const struct falcon_spi_device *spi, loff_t start,
 		     size_t len, size_t *retlen, const u8 *buffer);
 
 /*
@@ -93,7 +93,7 @@ int falcon_spi_write(struct efx_nic *efx,
  */
 #define FALCON_NVCONFIG_END 0x400U
 #define FALCON_FLASH_BOOTCODE_START 0x8000U
-#define EFX_EEPROM_BOOTCONFIG_START 0x800U
-#define EFX_EEPROM_BOOTCONFIG_END 0x1800U
+#define FALCON_EEPROM_BOOTCONFIG_START 0x800U
+#define FALCON_EEPROM_BOOTCONFIG_END 0x1800U
 
 #endif /* EFX_SPI_H */

drivers/net/ethernet/sfc/workarounds.h

@@ -15,25 +15,15 @@
  * Bug numbers are from Solarflare's Bugzilla.
  */
 
-#define EFX_WORKAROUND_ALWAYS(efx) 1
 #define EFX_WORKAROUND_FALCON_A(efx) (efx_nic_rev(efx) <= EFX_REV_FALCON_A1)
 #define EFX_WORKAROUND_FALCON_AB(efx) (efx_nic_rev(efx) <= EFX_REV_FALCON_B0)
 #define EFX_WORKAROUND_SIENA(efx) (efx_nic_rev(efx) == EFX_REV_SIENA_A0)
 #define EFX_WORKAROUND_10G(efx) 1
 
-/* XAUI resets if link not detected */
-#define EFX_WORKAROUND_5147 EFX_WORKAROUND_ALWAYS
-/* RX PCIe double split performance issue */
-#define EFX_WORKAROUND_7575 EFX_WORKAROUND_ALWAYS
 /* Bit-bashed I2C reads cause performance drop */
 #define EFX_WORKAROUND_7884 EFX_WORKAROUND_10G
-/* TX_EV_PKT_ERR can be caused by a dangling TX descriptor
- * or a PCIe error (bug 11028) */
-#define EFX_WORKAROUND_10727 EFX_WORKAROUND_ALWAYS
 /* Truncated IPv4 packets can confuse the TX packet parser */
 #define EFX_WORKAROUND_15592 EFX_WORKAROUND_FALCON_AB
-/* Legacy ISR read can return zero once */
-#define EFX_WORKAROUND_15783 EFX_WORKAROUND_ALWAYS
 /* Legacy interrupt storm when interrupt fifo fills */
 #define EFX_WORKAROUND_17213 EFX_WORKAROUND_SIENA