From: Andrew Rybchenko <Andrew.Rybchenko@oktetlabs.ru>
Date: Wed, 15 Jun 2016 16:45:56 +0000 (+0100)
Subject: sfc: Store unicast and multicast promisc flag with address cache
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=afa4ce125516cc29a8897952d7824a742bd8b4b9;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

sfc: Store unicast and multicast promisc flag with address cache

These flags are built when address cache is updated.
The information will be required when VLAN filtering is added and address
cache is used without re-sync.

Signed-off-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c
index 7abb8a745b6a..a2a10dcc216f 100644
--- a/drivers/net/ethernet/sfc/ef10.c
+++ b/drivers/net/ethernet/sfc/ef10.c
@@ -89,6 +89,8 @@ struct efx_ef10_filter_table {
 	struct efx_ef10_dev_addr dev_mc_list[EFX_EF10_FILTER_DEV_MC_MAX];
 	int dev_uc_count;
 	int dev_mc_count;
+	bool uc_promisc;
+	bool mc_promisc;
 /* Whether in multicast promiscuous mode when last changed */
 	bool mc_promisc_last;
 	struct efx_ef10_filter_vlan vlan;
@@ -3948,7 +3950,7 @@ static void efx_ef10_filter_mark_old(struct efx_nic *efx)
 	spin_unlock_bh(&efx->filter_lock);
 }
 
-static void efx_ef10_filter_uc_addr_list(struct efx_nic *efx, bool *promisc)
+static void efx_ef10_filter_uc_addr_list(struct efx_nic *efx)
 {
 	struct efx_ef10_filter_table *table = efx->filter_state;
 	struct net_device *net_dev = efx->net_dev;
@@ -3957,14 +3959,13 @@ static void efx_ef10_filter_uc_addr_list(struct efx_nic *efx, bool *promisc)
 	unsigned int i;
 
 	addr_count = netdev_uc_count(net_dev);
-	if (net_dev->flags & IFF_PROMISC)
-		*promisc = true;
+	table->uc_promisc = !!(net_dev->flags & IFF_PROMISC);
 	table->dev_uc_count = 1 + addr_count;
 	ether_addr_copy(table->dev_uc_list[0].addr, net_dev->dev_addr);
 	i = 1;
 	netdev_for_each_uc_addr(uc, net_dev) {
 		if (i >= EFX_EF10_FILTER_DEV_UC_MAX) {
-			*promisc = true;
+			table->uc_promisc = true;
 			break;
 		}
 		ether_addr_copy(table->dev_uc_list[i].addr, uc->addr);
@@ -3972,21 +3973,20 @@ static void efx_ef10_filter_uc_addr_list(struct efx_nic *efx, bool *promisc)
 	}
 }
 
-static void efx_ef10_filter_mc_addr_list(struct efx_nic *efx, bool *promisc)
+static void efx_ef10_filter_mc_addr_list(struct efx_nic *efx)
 {
 	struct efx_ef10_filter_table *table = efx->filter_state;
 	struct net_device *net_dev = efx->net_dev;
 	struct netdev_hw_addr *mc;
 	unsigned int i, addr_count;
 
-	if (net_dev->flags & (IFF_PROMISC | IFF_ALLMULTI))
-		*promisc = true;
+	table->mc_promisc = !!(net_dev->flags & (IFF_PROMISC | IFF_ALLMULTI));
 
 	addr_count = netdev_mc_count(net_dev);
 	i = 0;
 	netdev_for_each_mc_addr(mc, net_dev) {
 		if (i >= EFX_EF10_FILTER_DEV_MC_MAX) {
-			*promisc = true;
+			table->mc_promisc = true;
 			break;
 		}
 		ether_addr_copy(table->dev_mc_list[i].addr, mc->addr);
@@ -4252,7 +4252,6 @@ static void efx_ef10_filter_sync_rx_mode(struct efx_nic *efx)
 	struct efx_ef10_filter_table *table = efx->filter_state;
 	struct efx_ef10_nic_data *nic_data = efx->nic_data;
 	struct net_device *net_dev = efx->net_dev;
-	bool uc_promisc = false, mc_promisc = false;
 
 	if (!efx_dev_registered(efx))
 		return;
@@ -4266,12 +4265,12 @@ static void efx_ef10_filter_sync_rx_mode(struct efx_nic *efx)
 	 * address and broadcast address
 	 */
 	netif_addr_lock_bh(net_dev);
-	efx_ef10_filter_uc_addr_list(efx, &uc_promisc);
-	efx_ef10_filter_mc_addr_list(efx, &mc_promisc);
+	efx_ef10_filter_uc_addr_list(efx);
+	efx_ef10_filter_mc_addr_list(efx);
 	netif_addr_unlock_bh(net_dev);
 
 	/* Insert/renew unicast filters */
-	if (uc_promisc) {
+	if (table->uc_promisc) {
 		efx_ef10_filter_insert_def(efx, false, false);
 		efx_ef10_filter_insert_addr_list(efx, false, false);
 	} else {
@@ -4287,9 +4286,10 @@ static void efx_ef10_filter_sync_rx_mode(struct efx_nic *efx)
 	/* If changing promiscuous state with cascaded multicast filters, remove
 	 * old filters first, so that packets are dropped rather than duplicated
 	 */
-	if (nic_data->workaround_26807 && table->mc_promisc_last != mc_promisc)
+	if (nic_data->workaround_26807 &&
+	    table->mc_promisc_last != table->mc_promisc)
 		efx_ef10_filter_remove_old(efx);
-	if (mc_promisc) {
+	if (table->mc_promisc) {
 		if (nic_data->workaround_26807) {
 			/* If we failed to insert promiscuous filters, rollback
 			 * and fall back to individual multicast filters
@@ -4322,7 +4322,7 @@ static void efx_ef10_filter_sync_rx_mode(struct efx_nic *efx)
 	}
 
 	efx_ef10_filter_remove_old(efx);
-	table->mc_promisc_last = mc_promisc;
+	table->mc_promisc_last = table->mc_promisc;
 }
 
 static int efx_ef10_set_mac_address(struct efx_nic *efx)