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Message-ID: <20241216100044.577489-4-danishanwar@ti.com>
Date: Mon, 16 Dec 2024 15:30:43 +0530
From: MD Danish Anwar <danishanwar@...com>
To: <aleksander.lobakin@...el.com>, <lukma@...x.de>, <m-malladi@...com>,
<diogo.ivo@...mens.com>, <rdunlap@...radead.org>,
<schnelle@...ux.ibm.com>, <vladimir.oltean@....com>,
<horms@...nel.org>, <rogerq@...nel.org>, <danishanwar@...com>,
<pabeni@...hat.com>, <kuba@...nel.org>, <edumazet@...gle.com>,
<davem@...emloft.net>, <andrew+netdev@...n.ch>
CC: <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
<netdev@...r.kernel.org>, <srk@...com>,
Vignesh Raghavendra <vigneshr@...com>
Subject: [PATCH net-next 3/4] net: ti: icssg-prueth: Add Multicast Filtering support for VLAN in MAC mode
Add multicast filtering support for VLAN interfaces in dual EMAC mode
for ICSSG driver.
The driver uses vlan_for_each() API to get the list of available
vlans. The driver then sync mc addr of vlan interface with a locally
mainatined list emac->vlan_mcast_list[vid] using __hw_addr_sync_multiple()
API.
The driver then calls the sync / unsync callbacks and based on whether
the ndev is vlan or not, driver passes appropriate vid to FDB helper
functions.
This commit also exports __hw_addr_sync_multiple() in order to use it
from the ICSSG driver.
Signed-off-by: MD Danish Anwar <danishanwar@...com>
---
drivers/net/ethernet/ti/icssg/icssg_prueth.c | 69 ++++++++++++++++----
drivers/net/ethernet/ti/icssg/icssg_prueth.h | 6 ++
include/linux/netdevice.h | 3 +
net/core/dev_addr_lists.c | 7 +-
4 files changed, 68 insertions(+), 17 deletions(-)
diff --git a/drivers/net/ethernet/ti/icssg/icssg_prueth.c b/drivers/net/ethernet/ti/icssg/icssg_prueth.c
index e031bccf31dc..a18773ef6eab 100644
--- a/drivers/net/ethernet/ti/icssg/icssg_prueth.c
+++ b/drivers/net/ethernet/ti/icssg/icssg_prueth.c
@@ -472,30 +472,43 @@ const struct icss_iep_clockops prueth_iep_clockops = {
static int icssg_prueth_add_mcast(struct net_device *ndev, const u8 *addr)
{
- struct prueth_emac *emac = netdev_priv(ndev);
- int port_mask = BIT(emac->port_id);
+ struct net_device *real_dev;
+ struct prueth_emac *emac;
+ int port_mask;
+ u8 vlan_id;
- port_mask |= icssg_fdb_lookup(emac, addr, 0);
- icssg_fdb_add_del(emac, addr, 0, port_mask, true);
- icssg_vtbl_modify(emac, 0, port_mask, port_mask, true);
+ vlan_id = is_vlan_dev(ndev) ? vlan_dev_vlan_id(ndev) : PRUETH_DFLT_VLAN_MAC;
+ real_dev = is_vlan_dev(ndev) ? vlan_dev_real_dev(ndev) : ndev;
+ emac = netdev_priv(real_dev);
+
+ port_mask = BIT(emac->port_id) | icssg_fdb_lookup(emac, addr, vlan_id);
+ icssg_fdb_add_del(emac, addr, vlan_id, port_mask, true);
+ icssg_vtbl_modify(emac, vlan_id, port_mask, port_mask, true);
return 0;
}
static int icssg_prueth_del_mcast(struct net_device *ndev, const u8 *addr)
{
- struct prueth_emac *emac = netdev_priv(ndev);
- int port_mask = BIT(emac->port_id);
+ struct net_device *real_dev;
+ struct prueth_emac *emac;
int other_port_mask;
+ int port_mask;
+ u8 vlan_id;
+
+ vlan_id = is_vlan_dev(ndev) ? vlan_dev_vlan_id(ndev) : PRUETH_DFLT_VLAN_MAC;
+ real_dev = is_vlan_dev(ndev) ? vlan_dev_real_dev(ndev) : ndev;
+ emac = netdev_priv(real_dev);
- other_port_mask = port_mask ^ icssg_fdb_lookup(emac, addr, 0);
+ port_mask = BIT(emac->port_id);
+ other_port_mask = port_mask ^ icssg_fdb_lookup(emac, addr, vlan_id);
- icssg_fdb_add_del(emac, addr, 0, port_mask, false);
- icssg_vtbl_modify(emac, 0, port_mask, port_mask, false);
+ icssg_fdb_add_del(emac, addr, vlan_id, port_mask, false);
+ icssg_vtbl_modify(emac, vlan_id, port_mask, port_mask, false);
if (other_port_mask) {
- icssg_fdb_add_del(emac, addr, 0, other_port_mask, true);
- icssg_vtbl_modify(emac, 0, other_port_mask, other_port_mask, true);
+ icssg_fdb_add_del(emac, addr, vlan_id, other_port_mask, true);
+ icssg_vtbl_modify(emac, vlan_id, other_port_mask, other_port_mask, true);
}
return 0;
@@ -531,6 +544,28 @@ static int icssg_prueth_hsr_del_mcast(struct net_device *ndev, const u8 *addr)
return 0;
}
+static int icssg_update_vlan_mcast(struct net_device *vdev, int vid,
+ void *args)
+{
+ struct net_device *vport_ndev;
+ struct prueth_emac *emac;
+
+ if (!vdev || !vid)
+ return 0;
+
+ vport_ndev = vlan_dev_real_dev(vdev);
+ emac = netdev_priv(vport_ndev);
+
+ netif_addr_lock_bh(vdev);
+ __hw_addr_sync_multiple(&emac->vlan_mcast_list[vid], &vdev->mc, vdev->addr_len);
+ netif_addr_unlock_bh(vdev);
+
+ __hw_addr_sync_dev(&emac->vlan_mcast_list[vid], vdev,
+ icssg_prueth_add_mcast, icssg_prueth_del_mcast);
+
+ return 0;
+}
+
/**
* emac_ndo_open - EMAC device open
* @ndev: network adapter device
@@ -772,12 +807,17 @@ static void emac_ndo_set_rx_mode_work(struct work_struct *work)
return;
}
- if (emac->prueth->is_hsr_offload_mode)
+ if (emac->prueth->is_hsr_offload_mode) {
__dev_mc_sync(ndev, icssg_prueth_hsr_add_mcast,
icssg_prueth_hsr_del_mcast);
- else
+ } else {
__dev_mc_sync(ndev, icssg_prueth_add_mcast,
icssg_prueth_del_mcast);
+ if (rtnl_trylock()) {
+ vlan_for_each(ndev, icssg_update_vlan_mcast, NULL);
+ rtnl_unlock();
+ }
+ }
}
/**
@@ -828,6 +868,7 @@ static int emac_ndo_vlan_rx_add_vid(struct net_device *ndev,
if (prueth->is_hsr_offload_mode)
port_mask |= BIT(PRUETH_PORT_HOST);
+ __hw_addr_init(&emac->vlan_mcast_list[vid]);
netdev_err(emac->ndev, "VID add vid:%u port_mask:%X untag_mask %X\n",
vid, port_mask, untag_mask);
diff --git a/drivers/net/ethernet/ti/icssg/icssg_prueth.h b/drivers/net/ethernet/ti/icssg/icssg_prueth.h
index f5c1d473e9f9..4da8b87408b5 100644
--- a/drivers/net/ethernet/ti/icssg/icssg_prueth.h
+++ b/drivers/net/ethernet/ti/icssg/icssg_prueth.h
@@ -83,6 +83,10 @@
#define ICSS_CMD_ADD_FILTER 0x7
#define ICSS_CMD_ADD_MAC 0x8
+/* VLAN Filtering Related MACROs */
+#define PRUETH_DFLT_VLAN_MAC 0
+#define MAX_VLAN_ID 256
+
/* In switch mode there are 3 real ports i.e. 3 mac addrs.
* however Linux sees only the host side port. The other 2 ports
* are the switch ports.
@@ -201,6 +205,8 @@ struct prueth_emac {
/* RX IRQ Coalescing Related */
struct hrtimer rx_hrtimer;
unsigned long rx_pace_timeout_ns;
+
+ struct netdev_hw_addr_list vlan_mcast_list[MAX_VLAN_ID];
};
/**
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index d917949bba03..a5c169b19543 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -4685,6 +4685,9 @@ int devm_register_netdev(struct device *dev, struct net_device *ndev);
/* General hardware address lists handling functions */
int __hw_addr_sync(struct netdev_hw_addr_list *to_list,
struct netdev_hw_addr_list *from_list, int addr_len);
+int __hw_addr_sync_multiple(struct netdev_hw_addr_list *to_list,
+ struct netdev_hw_addr_list *from_list,
+ int addr_len);
void __hw_addr_unsync(struct netdev_hw_addr_list *to_list,
struct netdev_hw_addr_list *from_list, int addr_len);
int __hw_addr_sync_dev(struct netdev_hw_addr_list *list,
diff --git a/net/core/dev_addr_lists.c b/net/core/dev_addr_lists.c
index 166e404f7c03..90716bd736f3 100644
--- a/net/core/dev_addr_lists.c
+++ b/net/core/dev_addr_lists.c
@@ -242,9 +242,9 @@ static void __hw_addr_unsync_one(struct netdev_hw_addr_list *to_list,
__hw_addr_del_entry(from_list, ha, false, false);
}
-static int __hw_addr_sync_multiple(struct netdev_hw_addr_list *to_list,
- struct netdev_hw_addr_list *from_list,
- int addr_len)
+int __hw_addr_sync_multiple(struct netdev_hw_addr_list *to_list,
+ struct netdev_hw_addr_list *from_list,
+ int addr_len)
{
int err = 0;
struct netdev_hw_addr *ha, *tmp;
@@ -260,6 +260,7 @@ static int __hw_addr_sync_multiple(struct netdev_hw_addr_list *to_list,
}
return err;
}
+EXPORT_SYMBOL(__hw_addr_sync_multiple);
/* This function only works where there is a strict 1-1 relationship
* between source and destination of they synch. If you ever need to
--
2.34.1
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