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.h b/drivers/net/qlcnic/qlcnic.h
index 4727204..9d21152 100644
--- a/drivers/net/qlcnic/qlcnic.h
+++ b/drivers/net/qlcnic/qlcnic.h
@@ -722,6 +722,8 @@
#define QLCNIC_MAC_NOOP 0
#define QLCNIC_MAC_ADD 1
#define QLCNIC_MAC_DEL 2
+#define QLCNIC_MAC_VLAN_ADD 3
+#define QLCNIC_MAC_VLAN_DEL 4
struct qlcnic_mac_list_s {
struct list_head list;
@@ -932,6 +934,7 @@
struct qlcnic_filter {
struct hlist_node fnode;
u8 faddr[ETH_ALEN];
+ u16 vlan_id;
unsigned long ftime;
};
diff --git a/drivers/net/qlcnic/qlcnic_hw.c b/drivers/net/qlcnic/qlcnic_hw.c
index 5b2bce5..c198df9 100644
--- a/drivers/net/qlcnic/qlcnic_hw.c
+++ b/drivers/net/qlcnic/qlcnic_hw.c
@@ -375,7 +375,7 @@
static int
qlcnic_sre_macaddr_change(struct qlcnic_adapter *adapter, u8 *addr,
- unsigned op)
+ u16 vlan_id, unsigned op)
{
struct qlcnic_nic_req req;
struct qlcnic_mac_req *mac_req;
@@ -391,6 +391,8 @@
mac_req->op = op;
memcpy(mac_req->mac_addr, addr, 6);
+ req.words[1] = cpu_to_le64(vlan_id);
+
return qlcnic_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
}
@@ -415,7 +417,7 @@
memcpy(cur->mac_addr, addr, ETH_ALEN);
if (qlcnic_sre_macaddr_change(adapter,
- cur->mac_addr, QLCNIC_MAC_ADD)) {
+ cur->mac_addr, 0, QLCNIC_MAC_ADD)) {
kfree(cur);
return -EIO;
}
@@ -485,7 +487,7 @@
while (!list_empty(head)) {
cur = list_entry(head->next, struct qlcnic_mac_list_s, list);
qlcnic_sre_macaddr_change(adapter,
- cur->mac_addr, QLCNIC_MAC_DEL);
+ cur->mac_addr, 0, QLCNIC_MAC_DEL);
list_del(&cur->list);
kfree(cur);
}
@@ -506,7 +508,9 @@
if (jiffies >
(QLCNIC_FILTER_AGE * HZ + tmp_fil->ftime)) {
qlcnic_sre_macaddr_change(adapter,
- tmp_fil->faddr, QLCNIC_MAC_DEL);
+ tmp_fil->faddr, tmp_fil->vlan_id,
+ tmp_fil->vlan_id ? QLCNIC_MAC_VLAN_DEL :
+ QLCNIC_MAC_DEL);
spin_lock_bh(&adapter->mac_learn_lock);
adapter->fhash.fnum--;
hlist_del(&tmp_fil->fnode);
@@ -528,8 +532,9 @@
head = &(adapter->fhash.fhead[i]);
hlist_for_each_entry_safe(tmp_fil, tmp_hnode, n, head, fnode) {
- qlcnic_sre_macaddr_change(adapter,
- tmp_fil->faddr, QLCNIC_MAC_DEL);
+ qlcnic_sre_macaddr_change(adapter, tmp_fil->faddr,
+ tmp_fil->vlan_id, tmp_fil->vlan_id ?
+ QLCNIC_MAC_VLAN_DEL : QLCNIC_MAC_DEL);
spin_lock_bh(&adapter->mac_learn_lock);
adapter->fhash.fnum--;
hlist_del(&tmp_fil->fnode);
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);