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qlcnic: Do MAC learning for SRIOV PF. 

o MAC learning will be done for SRIOV PF to help program VLAN filters
  onto adapter. This will help VNIC traffic to flow through without
  flooding traffic.

Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sucheta Chakraborty 2014-01-10 11:48:55 -05:00 committed by David S. Miller
parent 9eb0948af7
commit b3f7de8327
6 changed files with 65 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
View File

@ -1079,6 +1079,7 @@ struct qlcnic_adapter {
u64 dev_rst_time;
bool drv_mac_learn;
bool fdb_mac_learn;
u8 rx_mac_learn;
unsigned long vlans[BITS_TO_LONGS(VLAN_N_VID)];
u8 flash_mfg_id;
struct qlcnic_npar_info *npars;

2
drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
View File

@ -1591,7 +1591,9 @@ static void qlcnic_83xx_set_interface_id_promisc(struct qlcnic_adapter *adapter,
u32 *interface_id)
{
if (qlcnic_sriov_pf_check(adapter)) {
qlcnic_alloc_lb_filters_mem(adapter);
qlcnic_pf_set_interface_id_promisc(adapter, interface_id);
adapter->rx_mac_learn = 1;
} else {
if (!qlcnic_sriov_vf_check(adapter))
*interface_id = adapter->recv_ctx->context_id << 16;

1
drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
View File

@ -2214,6 +2214,7 @@ int qlcnic_83xx_init(struct qlcnic_adapter *adapter, int pci_using_dac)
struct qlcnic_hardware_context *ahw = adapter->ahw;
int err = 0;
adapter->rx_mac_learn = 0;
ahw->msix_supported = !!qlcnic_use_msi_x;
qlcnic_83xx_init_rings(adapter);

8
drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
View File

@ -224,10 +224,14 @@ int qlcnic_83xx_config_vnic_opmode(struct qlcnic_adapter *adapter)
return -EIO;
}
if (ahw->capabilities & QLC_83XX_ESWITCH_CAPABILITY)
if (ahw->capabilities & QLC_83XX_ESWITCH_CAPABILITY) {
adapter->flags |= QLCNIC_ESWITCH_ENABLED;
else
if (adapter->drv_mac_learn)
adapter->rx_mac_learn = 1;
} else {
adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
adapter->rx_mac_learn = 0;
}
ahw->idc.vnic_state = QLCNIC_DEV_NPAR_NON_OPER;
ahw->idc.vnic_wait_limit = QLCNIC_DEV_NPAR_OPER_TIMEO;

3
drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
View File

@ -546,8 +546,11 @@ void __qlcnic_set_multi(struct net_device *netdev, u16 vlan)
!adapter->fdb_mac_learn) {
qlcnic_alloc_lb_filters_mem(adapter);
adapter->drv_mac_learn = 1;
if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
adapter->rx_mac_learn = 1;
} else {
adapter->drv_mac_learn = 0;
adapter->rx_mac_learn = 0;
}
qlcnic_nic_set_promisc(adapter, mode);

82
drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
View File

@ -156,9 +156,9 @@ static inline void qlcnic_83xx_disable_tx_intr(struct qlcnic_adapter *adapter,
writel(1, tx_ring->crb_intr_mask);
}
static inline u8 qlcnic_mac_hash(u64 mac)
static inline u8 qlcnic_mac_hash(u64 mac, u16 vlan)
{
return (u8)((mac & 0xff) ^ ((mac >> 40) & 0xff));
return (u8)((mac & 0xff) ^ ((mac >> 40) & 0xff) ^ (vlan & 0xff));
}
static inline u32 qlcnic_get_ref_handle(struct qlcnic_adapter *adapter,
@ -221,8 +221,11 @@ void qlcnic_add_lb_filter(struct qlcnic_adapter *adapter, struct sk_buff *skb,
u8 hindex, op;
int ret;
if (!qlcnic_sriov_pf_check(adapter) || (vlan_id == 0xffff))
vlan_id = 0;
memcpy(&src_addr, phdr->h_source, ETH_ALEN);
hindex = qlcnic_mac_hash(src_addr) &
hindex = qlcnic_mac_hash(src_addr, vlan_id) &
(adapter->fhash.fbucket_size - 1);
if (loopback_pkt) {
@ -322,27 +325,43 @@ static void qlcnic_send_filter(struct qlcnic_adapter *adapter,
struct cmd_desc_type0 *first_desc,
struct sk_buff *skb)
{
struct qlcnic_filter *fil, *tmp_fil;
struct hlist_node *n;
struct hlist_head *head;
struct net_device *netdev = adapter->netdev;
struct vlan_ethhdr *vh = (struct vlan_ethhdr *)(skb->data);
struct ethhdr *phdr = (struct ethhdr *)(skb->data);
struct net_device *netdev = adapter->netdev;
u16 protocol = ntohs(skb->protocol);
struct qlcnic_filter *fil, *tmp_fil;
struct hlist_head *head;
struct hlist_node *n;
u64 src_addr = 0;
u16 vlan_id = 0;
u8 hindex;
u8 hindex, hval;
if (ether_addr_equal(phdr->h_source, adapter->mac_addr))
return;
if (!qlcnic_sriov_pf_check(adapter)) {
if (ether_addr_equal(phdr->h_source, adapter->mac_addr))
return;
} else {
if (protocol == ETH_P_8021Q) {
vh = (struct vlan_ethhdr *)skb->data;
vlan_id = ntohs(vh->h_vlan_TCI);
} else if (vlan_tx_tag_present(skb)) {
vlan_id = vlan_tx_tag_get(skb);
}
if (ether_addr_equal(phdr->h_source, adapter->mac_addr) &&
!vlan_id)
return;
}
if (adapter->fhash.fnum >= adapter->fhash.fmax) {
adapter->stats.mac_filter_limit_overrun++;
netdev_info(netdev, "Can not add more than %d mac addresses\n",
adapter->fhash.fmax);
netdev_info(netdev, "Can not add more than %d mac-vlan filters, configured %d\n",
adapter->fhash.fmax, adapter->fhash.fnum);
return;
}
memcpy(&src_addr, phdr->h_source, ETH_ALEN);
hindex = qlcnic_mac_hash(src_addr) & (adapter->fhash.fbucket_size - 1);
hval = qlcnic_mac_hash(src_addr, vlan_id);
hindex = hval & (adapter->fhash.fbucket_size - 1);
head = &(adapter->fhash.fhead[hindex]);
hlist_for_each_entry_safe(tmp_fil, n, head, fnode) {
@ -1599,7 +1618,8 @@ qlcnic_83xx_process_rcv(struct qlcnic_adapter *adapter,
struct sk_buff *skb;
struct qlcnic_host_rds_ring *rds_ring;
int index, length, cksum, is_lb_pkt;
u16 vid = 0xffff, t_vid;
u16 vid = 0xffff;
int err;
if (unlikely(ring >= adapter->max_rds_rings))
return NULL;
@ -1617,19 +1637,19 @@ qlcnic_83xx_process_rcv(struct qlcnic_adapter *adapter,
if (!skb)
return buffer;
if (adapter->drv_mac_learn &&
(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
t_vid = 0;
is_lb_pkt = qlcnic_83xx_is_lb_pkt(sts_data[1], 0);
qlcnic_add_lb_filter(adapter, skb, is_lb_pkt, t_vid);
}
if (length > rds_ring->skb_size)
skb_put(skb, rds_ring->skb_size);
else
skb_put(skb, length);
if (unlikely(qlcnic_check_rx_tagging(adapter, skb, &vid))) {
err = qlcnic_check_rx_tagging(adapter, skb, &vid);
if (adapter->rx_mac_learn) {
is_lb_pkt = qlcnic_83xx_is_lb_pkt(sts_data[1], 0);
qlcnic_add_lb_filter(adapter, skb, is_lb_pkt, vid);
}
if (unlikely(err)) {
adapter->stats.rxdropped++;
dev_kfree_skb(skb);
return buffer;
@ -1664,7 +1684,8 @@ qlcnic_83xx_process_lro(struct qlcnic_adapter *adapter,
int l2_hdr_offset, l4_hdr_offset;
int index, is_lb_pkt;
u16 lro_length, length, data_offset, gso_size;
u16 vid = 0xffff, t_vid;
u16 vid = 0xffff;
int err;
if (unlikely(ring > adapter->max_rds_rings))
return NULL;
@ -1686,12 +1707,6 @@ qlcnic_83xx_process_lro(struct qlcnic_adapter *adapter,
if (!skb)
return buffer;
if (adapter->drv_mac_learn &&
(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
t_vid = 0;
is_lb_pkt = qlcnic_83xx_is_lb_pkt(sts_data[1], 1);
qlcnic_add_lb_filter(adapter, skb, is_lb_pkt, t_vid);
}
if (qlcnic_83xx_is_tstamp(sts_data[1]))
data_offset = l4_hdr_offset + QLCNIC_TCP_TS_HDR_SIZE;
else
@ -1700,7 +1715,14 @@ qlcnic_83xx_process_lro(struct qlcnic_adapter *adapter,
skb_put(skb, lro_length + data_offset);
skb_pull(skb, l2_hdr_offset);
if (unlikely(qlcnic_check_rx_tagging(adapter, skb, &vid))) {
err = qlcnic_check_rx_tagging(adapter, skb, &vid);
if (adapter->rx_mac_learn) {
is_lb_pkt = qlcnic_83xx_is_lb_pkt(sts_data[1], 1);
qlcnic_add_lb_filter(adapter, skb, is_lb_pkt, vid);
}
if (unlikely(err)) {
adapter->stats.rxdropped++;
dev_kfree_skb(skb);
return buffer;