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qlcnic: add support for FDB netdevice ops. 

Providing communication channel between KVM and e-Switch so that it
can be informed when hypervisor configures a MAC address and VLAN.

qlcnic_mac_learn module param usage will be changed to:
	0 = MAC learning is disable
	1 = Driver learning is enable
	2 = FDB learning is enable

Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jitendra Kalsaria 2013-01-25 10:20:40 +00:00 committed by David S. Miller
parent 1d9219ddb9
commit fe1adc6bf2
4 changed files with 117 additions and 9 deletions
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10
drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
View File

@ -746,6 +746,11 @@ struct qlcnic_mac_list_s {
uint8_t mac_addr[ETH_ALEN+2];
};
/* MAC Learn */
#define NO_MAC_LEARN 0
#define DRV_MAC_LEARN 1
#define FDB_MAC_LEARN 2
#define QLCNIC_HOST_REQUEST 0x13
#define QLCNIC_REQUEST 0x14
@ -981,7 +986,8 @@ struct qlcnic_adapter {
u8 mac_addr[ETH_ALEN];
u64 dev_rst_time;
u8 mac_learn;
bool drv_mac_learn;
bool fdb_mac_learn;
unsigned long vlans[BITS_TO_LONGS(VLAN_N_VID)];
u8 flash_mfg_id;
struct qlcnic_npar_info *npars;
@ -1421,6 +1427,8 @@ void qlcnic_post_rx_buffers(struct qlcnic_adapter *adapter,
struct qlcnic_host_rds_ring *rds_ring, u8 ring_id);
int qlcnic_process_rcv_ring(struct qlcnic_host_sds_ring *sds_ring, int max);
void qlcnic_set_multi(struct net_device *netdev);
int qlcnic_nic_add_mac(struct qlcnic_adapter *, const u8 *);
int qlcnic_nic_del_mac(struct qlcnic_adapter *, const u8 *);
void qlcnic_free_mac_list(struct qlcnic_adapter *adapter);
int qlcnic_fw_cmd_set_mtu(struct qlcnic_adapter *adapter, int mtu);

30
drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
View File

@ -446,7 +446,29 @@ int qlcnic_82xx_sre_macaddr_change(struct qlcnic_adapter *adapter, u8 *addr,
return qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
}
static int qlcnic_nic_add_mac(struct qlcnic_adapter *adapter, const u8 *addr)
int qlcnic_nic_del_mac(struct qlcnic_adapter *adapter, const u8 *addr)
{
struct list_head *head;
struct qlcnic_mac_list_s *cur;
int err = -EINVAL;
/* Delete MAC from the existing list */
list_for_each(head, &adapter->mac_list) {
cur = list_entry(head, struct qlcnic_mac_list_s, list);
if (memcmp(addr, cur->mac_addr, ETH_ALEN) == 0) {
err = qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
0, QLCNIC_MAC_DEL);
if (err)
return err;
list_del(&cur->list);
kfree(cur);
return err;
}
}
return err;
}
int qlcnic_nic_add_mac(struct qlcnic_adapter *adapter, const u8 *addr)
{
struct list_head *head;
struct qlcnic_mac_list_s *cur;
@ -510,11 +532,11 @@ void qlcnic_set_multi(struct net_device *netdev)
}
send_fw_cmd:
if (mode == VPORT_MISS_MODE_ACCEPT_ALL) {
if (mode == VPORT_MISS_MODE_ACCEPT_ALL && !adapter->fdb_mac_learn) {
qlcnic_alloc_lb_filters_mem(adapter);
adapter->mac_learn = 1;
adapter->drv_mac_learn = true;
} else {
adapter->mac_learn = 0;
adapter->drv_mac_learn = false;
}
qlcnic_nic_set_promisc(adapter, mode);

2
drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
View File

@ -521,7 +521,7 @@ netdev_tx_t qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
if (unlikely(qlcnic_tx_pkt(adapter, first_desc, skb)))
goto unwind_buff;
if (adapter->mac_learn)
if (adapter->drv_mac_learn)
qlcnic_send_filter(adapter, first_desc, skb);
adapter->stats.txbytes += skb->len;

84
drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
View File

@ -32,7 +32,8 @@ static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
static int qlcnic_mac_learn;
module_param(qlcnic_mac_learn, int, 0444);
MODULE_PARM_DESC(qlcnic_mac_learn, "Mac Filter (0=disabled, 1=enabled)");
MODULE_PARM_DESC(qlcnic_mac_learn,
"Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
int qlcnic_use_msi = 1;
MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled");
@ -246,6 +247,77 @@ static int qlcnic_set_mac(struct net_device *netdev, void *p)
return 0;
}
static int qlcnic_fdb_del(struct ndmsg *ndm, struct net_device *netdev,
const unsigned char *addr)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
int err = -EOPNOTSUPP;
if (!adapter->fdb_mac_learn) {
pr_info("%s: Driver mac learn is enabled, FDB operation not allowed\n",
__func__);
return err;
}
if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
if (is_unicast_ether_addr(addr))
err = qlcnic_nic_del_mac(adapter, addr);
else if (is_multicast_ether_addr(addr))
err = dev_mc_del(netdev, addr);
else
err = -EINVAL;
}
return err;
}
static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
struct net_device *netdev,
const unsigned char *addr, u16 flags)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
int err = 0;
if (!adapter->fdb_mac_learn) {
pr_info("%s: Driver mac learn is enabled, FDB operation not allowed\n",
__func__);
return -EOPNOTSUPP;
}
if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
pr_info("%s: FDB e-switch is not enabled\n", __func__);
return -EOPNOTSUPP;
}
if (ether_addr_equal(addr, adapter->mac_addr))
return err;
if (is_unicast_ether_addr(addr))
err = qlcnic_nic_add_mac(adapter, addr);
else if (is_multicast_ether_addr(addr))
err = dev_mc_add_excl(netdev, addr);
else
err = -EINVAL;
return err;
}
static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
struct net_device *netdev, int idx)
{
struct qlcnic_adapter *adapter = netdev_priv(netdev);
if (!adapter->fdb_mac_learn) {
pr_info("%s: Driver mac learn is enabled, FDB operation not allowed\n",
__func__);
return -EOPNOTSUPP;
}
if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
idx = ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
return idx;
}
static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
{
while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
@ -268,6 +340,9 @@ static const struct net_device_ops qlcnic_netdev_ops = {
.ndo_tx_timeout = qlcnic_tx_timeout,
.ndo_vlan_rx_add_vid = qlcnic_vlan_rx_add,
.ndo_vlan_rx_kill_vid = qlcnic_vlan_rx_del,
.ndo_fdb_add = qlcnic_fdb_add,
.ndo_fdb_del = qlcnic_fdb_del,
.ndo_fdb_dump = qlcnic_fdb_dump,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = qlcnic_poll_controller,
#endif
@ -1802,7 +1877,10 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
adapter->dev_rst_time = jiffies;
adapter->ahw->revision_id = pdev->revision;
adapter->mac_learn = qlcnic_mac_learn;
if (qlcnic_mac_learn == FDB_MAC_LEARN)
adapter->fdb_mac_learn = true;
else if (qlcnic_mac_learn == DRV_MAC_LEARN)
adapter->drv_mac_learn = true;
adapter->max_drv_tx_rings = 1;
rwlock_init(&adapter->ahw->crb_lock);
@ -1893,7 +1971,7 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
if (qlcnic_get_act_pci_func(adapter))
goto err_out_disable_mbx_intr;
if (adapter->mac_learn)
if (adapter->drv_mac_learn)
qlcnic_alloc_lb_filters_mem(adapter);
qlcnic_add_sysfs(adapter);