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Message-ID: <20101208230148.24021.32576.stgit@savbu-pc100.cisco.com>
Date: Wed, 08 Dec 2010 15:01:48 -0800
From: Roopa Prabhu <roprabhu@...co.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org
Subject: [net-next-2.6 PATCH] enic: Add ndo_set_rx_mode support for enic vnics
From: Roopa Prabhu <roprabhu@...co.com>
Add ndo_set_rx_mode support to register unicast and multicast
address filters for enic devices
Signed-off-by: Roopa Prabhu <roprabhu@...co.com>
Signed-off-by: David Wang <dwang2@...co.com>
Signed-off-by: Christian Benvenuti <benve@...co.com>
---
drivers/net/enic/enic.h | 4 +
drivers/net/enic/enic_main.c | 121 ++++++++++++++++++++++++++++++++++--------
drivers/net/enic/enic_res.h | 1
3 files changed, 102 insertions(+), 24 deletions(-)
diff --git a/drivers/net/enic/enic.h b/drivers/net/enic/enic.h
index 7067254..8f374c1 100644
--- a/drivers/net/enic/enic.h
+++ b/drivers/net/enic/enic.h
@@ -32,7 +32,7 @@
#define DRV_NAME "enic"
#define DRV_DESCRIPTION "Cisco VIC Ethernet NIC Driver"
-#define DRV_VERSION "1.4.1.7"
+#define DRV_VERSION "1.4.1.8"
#define DRV_COPYRIGHT "Copyright 2008-2010 Cisco Systems, Inc"
#define ENIC_BARS_MAX 6
@@ -78,8 +78,10 @@ struct enic {
spinlock_t devcmd_lock;
u8 mac_addr[ETH_ALEN];
u8 mc_addr[ENIC_MULTICAST_PERFECT_FILTERS][ETH_ALEN];
+ u8 uc_addr[ENIC_UNICAST_PERFECT_FILTERS][ETH_ALEN];
unsigned int flags;
unsigned int mc_count;
+ unsigned int uc_count;
int csum_rx_enabled;
u32 port_mtu;
u32 rx_coalesce_usecs;
diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index 9f293fa..1931f15 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -1002,7 +1002,7 @@ static int enic_dev_packet_filter(struct enic *enic, int directed,
return err;
}
-static int enic_dev_add_multicast_addr(struct enic *enic, u8 *addr)
+static int enic_dev_add_addr(struct enic *enic, u8 *addr)
{
int err;
@@ -1013,7 +1013,7 @@ static int enic_dev_add_multicast_addr(struct enic *enic, u8 *addr)
return err;
}
-static int enic_dev_del_multicast_addr(struct enic *enic, u8 *addr)
+static int enic_dev_del_addr(struct enic *enic, u8 *addr)
{
int err;
@@ -1024,29 +1024,19 @@ static int enic_dev_del_multicast_addr(struct enic *enic, u8 *addr)
return err;
}
-/* netif_tx_lock held, BHs disabled */
-static void enic_set_multicast_list(struct net_device *netdev)
+static void enic_add_multicast_addr_list(struct enic *enic)
{
- struct enic *enic = netdev_priv(netdev);
+ struct net_device *netdev = enic->netdev;
struct netdev_hw_addr *ha;
- int directed = 1;
- int multicast = (netdev->flags & IFF_MULTICAST) ? 1 : 0;
- int broadcast = (netdev->flags & IFF_BROADCAST) ? 1 : 0;
- int promisc = (netdev->flags & IFF_PROMISC) ? 1 : 0;
unsigned int mc_count = netdev_mc_count(netdev);
- int allmulti = (netdev->flags & IFF_ALLMULTI) ||
- mc_count > ENIC_MULTICAST_PERFECT_FILTERS;
- unsigned int flags = netdev->flags | (allmulti ? IFF_ALLMULTI : 0);
u8 mc_addr[ENIC_MULTICAST_PERFECT_FILTERS][ETH_ALEN];
unsigned int i, j;
- if (mc_count > ENIC_MULTICAST_PERFECT_FILTERS)
+ if (mc_count > ENIC_MULTICAST_PERFECT_FILTERS) {
+ netdev_warn(netdev, "Registering only %d out of %d "
+ "multicast addresses\n",
+ ENIC_MULTICAST_PERFECT_FILTERS, mc_count);
mc_count = ENIC_MULTICAST_PERFECT_FILTERS;
-
- if (enic->flags != flags) {
- enic->flags = flags;
- enic_dev_packet_filter(enic, directed,
- multicast, broadcast, promisc, allmulti);
}
/* Is there an easier way? Trying to minimize to
@@ -1068,7 +1058,7 @@ static void enic_set_multicast_list(struct net_device *netdev)
mc_addr[j]) == 0)
break;
if (j == mc_count)
- enic_dev_del_multicast_addr(enic, enic->mc_addr[i]);
+ enic_dev_del_addr(enic, enic->mc_addr[i]);
}
for (i = 0; i < mc_count; i++) {
@@ -1077,7 +1067,7 @@ static void enic_set_multicast_list(struct net_device *netdev)
enic->mc_addr[j]) == 0)
break;
if (j == enic->mc_count)
- enic_dev_add_multicast_addr(enic, mc_addr[i]);
+ enic_dev_add_addr(enic, mc_addr[i]);
}
/* Save the list to compare against next time
@@ -1089,6 +1079,89 @@ static void enic_set_multicast_list(struct net_device *netdev)
enic->mc_count = mc_count;
}
+static void enic_add_unicast_addr_list(struct enic *enic)
+{
+ struct net_device *netdev = enic->netdev;
+ struct netdev_hw_addr *ha;
+ unsigned int uc_count = netdev_uc_count(netdev);
+ u8 uc_addr[ENIC_UNICAST_PERFECT_FILTERS][ETH_ALEN];
+ unsigned int i, j;
+
+ if (uc_count > ENIC_UNICAST_PERFECT_FILTERS) {
+ netdev_warn(netdev, "Registering only %d out of %d "
+ "unicast addresses\n",
+ ENIC_UNICAST_PERFECT_FILTERS, uc_count);
+ uc_count = ENIC_UNICAST_PERFECT_FILTERS;
+ }
+
+ /* Is there an easier way? Trying to minimize to
+ * calls to add/del unicast addrs. We keep the
+ * addrs from the last call in enic->uc_addr and
+ * look for changes to add/del.
+ */
+
+ i = 0;
+ netdev_for_each_uc_addr(ha, netdev) {
+ if (i == uc_count)
+ break;
+ memcpy(uc_addr[i++], ha->addr, ETH_ALEN);
+ }
+
+ for (i = 0; i < enic->uc_count; i++) {
+ for (j = 0; j < uc_count; j++)
+ if (compare_ether_addr(enic->uc_addr[i],
+ uc_addr[j]) == 0)
+ break;
+ if (j == uc_count)
+ enic_dev_del_addr(enic, enic->uc_addr[i]);
+ }
+
+ for (i = 0; i < uc_count; i++) {
+ for (j = 0; j < enic->uc_count; j++)
+ if (compare_ether_addr(uc_addr[i],
+ enic->uc_addr[j]) == 0)
+ break;
+ if (j == enic->uc_count)
+ enic_dev_add_addr(enic, uc_addr[i]);
+ }
+
+ /* Save the list to compare against next time
+ */
+
+ for (i = 0; i < uc_count; i++)
+ memcpy(enic->uc_addr[i], uc_addr[i], ETH_ALEN);
+
+ enic->uc_count = uc_count;
+}
+
+/* netif_tx_lock held, BHs disabled */
+static void enic_set_rx_mode(struct net_device *netdev)
+{
+ struct enic *enic = netdev_priv(netdev);
+ int directed = 1;
+ int multicast = (netdev->flags & IFF_MULTICAST) ? 1 : 0;
+ int broadcast = (netdev->flags & IFF_BROADCAST) ? 1 : 0;
+ int promisc = (netdev->flags & IFF_PROMISC) ||
+ netdev_uc_count(netdev) > ENIC_UNICAST_PERFECT_FILTERS;
+ int allmulti = (netdev->flags & IFF_ALLMULTI) ||
+ netdev_mc_count(netdev) > ENIC_MULTICAST_PERFECT_FILTERS;
+ unsigned int flags = netdev->flags |
+ (allmulti ? IFF_ALLMULTI : 0) |
+ (promisc ? IFF_PROMISC : 0);
+
+ if (enic->flags != flags) {
+ enic->flags = flags;
+ enic_dev_packet_filter(enic, directed,
+ multicast, broadcast, promisc, allmulti);
+ }
+
+ if (!promisc) {
+ enic_add_unicast_addr_list(enic);
+ if (!allmulti)
+ enic_add_multicast_addr_list(enic);
+ }
+}
+
/* rtnl lock is held */
static void enic_vlan_rx_register(struct net_device *netdev,
struct vlan_group *vlan_group)
@@ -1852,7 +1925,7 @@ static int enic_open(struct net_device *netdev)
vnic_rq_enable(&enic->rq[i]);
enic_dev_add_station_addr(enic);
- enic_set_multicast_list(netdev);
+ enic_set_rx_mode(netdev);
netif_wake_queue(netdev);
@@ -2328,7 +2401,8 @@ static const struct net_device_ops enic_netdev_dynamic_ops = {
.ndo_start_xmit = enic_hard_start_xmit,
.ndo_get_stats = enic_get_stats,
.ndo_validate_addr = eth_validate_addr,
- .ndo_set_multicast_list = enic_set_multicast_list,
+ .ndo_set_rx_mode = enic_set_rx_mode,
+ .ndo_set_multicast_list = enic_set_rx_mode,
.ndo_set_mac_address = enic_set_mac_address_dynamic,
.ndo_change_mtu = enic_change_mtu,
.ndo_vlan_rx_register = enic_vlan_rx_register,
@@ -2349,7 +2423,8 @@ static const struct net_device_ops enic_netdev_ops = {
.ndo_get_stats = enic_get_stats,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = enic_set_mac_address,
- .ndo_set_multicast_list = enic_set_multicast_list,
+ .ndo_set_rx_mode = enic_set_rx_mode,
+ .ndo_set_multicast_list = enic_set_rx_mode,
.ndo_change_mtu = enic_change_mtu,
.ndo_vlan_rx_register = enic_vlan_rx_register,
.ndo_vlan_rx_add_vid = enic_vlan_rx_add_vid,
diff --git a/drivers/net/enic/enic_res.h b/drivers/net/enic/enic_res.h
index 9a103d9..25be273 100644
--- a/drivers/net/enic/enic_res.h
+++ b/drivers/net/enic/enic_res.h
@@ -34,6 +34,7 @@
#define ENIC_MAX_MTU 9000
#define ENIC_MULTICAST_PERFECT_FILTERS 32
+#define ENIC_UNICAST_PERFECT_FILTERS 32
#define ENIC_NON_TSO_MAX_DESC 16
--
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