qlcnic: mac vlan learning support
Hypervisor allows, two VM's interfaces to have same mac address.
These VM's interfaces get differentiate with Vlan tag.
This patch add support to learn and configure mac+vlan filter on device.
Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/qlcnic/qlcnic_main.c b/drivers/net/qlcnic/qlcnic_main.c
index 0fbfb53..5a6445a 100644
--- a/drivers/net/qlcnic/qlcnic_main.c
+++ b/drivers/net/qlcnic/qlcnic_main.c
@@ -1826,7 +1826,7 @@
}
static void qlcnic_change_filter(struct qlcnic_adapter *adapter,
- u64 uaddr, struct qlcnic_host_tx_ring *tx_ring)
+ u64 uaddr, u16 vlan_id, struct qlcnic_host_tx_ring *tx_ring)
{
struct cmd_desc_type0 *hwdesc;
struct qlcnic_nic_req *req;
@@ -1845,9 +1845,11 @@
req->req_hdr = cpu_to_le64(word);
mac_req = (struct qlcnic_mac_req *)&(req->words[0]);
- mac_req->op = QLCNIC_MAC_ADD;
+ mac_req->op = vlan_id ? QLCNIC_MAC_VLAN_ADD : QLCNIC_MAC_ADD;
memcpy(mac_req->mac_addr, &uaddr, ETH_ALEN);
+ req->words[1] = cpu_to_le64(vlan_id);
+
tx_ring->producer = get_next_index(producer, tx_ring->num_desc);
}
@@ -1865,6 +1867,7 @@
struct hlist_node *tmp_hnode, *n;
struct hlist_head *head;
u64 src_addr = 0;
+ u16 vlan_id = 0;
u8 hindex;
if (!compare_ether_addr(phdr->h_source, adapter->mac_addr))
@@ -1873,12 +1876,16 @@
if (adapter->fhash.fnum >= adapter->fhash.fmax)
return;
+ /* Only NPAR capable devices support vlan based learning*/
+ if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
+ vlan_id = first_desc->vlan_TCI;
memcpy(&src_addr, phdr->h_source, ETH_ALEN);
hindex = QLCNIC_MAC_HASH(src_addr) & (QLCNIC_LB_MAX_FILTERS - 1);
head = &(adapter->fhash.fhead[hindex]);
hlist_for_each_entry_safe(tmp_fil, tmp_hnode, n, head, fnode) {
- if (!memcmp(tmp_fil->faddr, &src_addr, ETH_ALEN)) {
+ if (!memcmp(tmp_fil->faddr, &src_addr, ETH_ALEN) &&
+ tmp_fil->vlan_id == vlan_id) {
tmp_fil->ftime = jiffies;
return;
}
@@ -1888,9 +1895,10 @@
if (!fil)
return;
- qlcnic_change_filter(adapter, src_addr, tx_ring);
+ qlcnic_change_filter(adapter, src_addr, vlan_id, tx_ring);
fil->ftime = jiffies;
+ fil->vlan_id = vlan_id;
memcpy(fil->faddr, &src_addr, ETH_ALEN);
spin_lock(&adapter->mac_learn_lock);
hlist_add_head(&(fil->fnode), head);