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authorRaghu Vatsavayi <rvatsavayi@caviumnetworks.com>2016-12-08 22:00:44 +0100
committerDavid S. Miller <davem@davemloft.net>2016-12-09 00:16:51 +0100
commit2135f9b112b8d0670f5328486da6047e1b49dd8c (patch)
tree3ed632f82dedb420cb6166cef9923f51c8c88b2d
parentMerge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/... (diff)
downloadlinux-2135f9b112b8d0670f5328486da6047e1b49dd8c.tar.xz
linux-2135f9b112b8d0670f5328486da6047e1b49dd8c.zip
liquidio VF vlan support
Adds support for VF vlan features. Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com> Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com> Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com> Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--drivers/net/ethernet/cavium/liquidio/lio_vf_main.c80
1 files changed, 80 insertions, 0 deletions
diff --git a/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c b/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c
index 9989ac393e94..bcfc92722e75 100644
--- a/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c
+++ b/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c
@@ -1350,6 +1350,7 @@ liquidio_push_packet(u32 octeon_id __attribute__((unused)),
container_of(param, struct octeon_droq, napi);
struct net_device *netdev = (struct net_device *)arg;
struct sk_buff *skb = (struct sk_buff *)skbuff;
+ u16 vtag = 0;
if (netdev) {
struct lio *lio = GET_LIO(netdev);
@@ -1403,6 +1404,16 @@ liquidio_push_packet(u32 octeon_id __attribute__((unused)),
else
skb->ip_summed = CHECKSUM_NONE;
+ /* inbound VLAN tag */
+ if ((netdev->features & NETIF_F_HW_VLAN_CTAG_RX) &&
+ rh->r_dh.vlan) {
+ u16 priority = rh->r_dh.priority;
+ u16 vid = rh->r_dh.vlan;
+
+ vtag = (priority << VLAN_PRIO_SHIFT) | vid;
+ __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vtag);
+ }
+
packet_was_received = (napi_gro_receive(napi, skb) != GRO_DROP);
if (packet_was_received) {
@@ -2025,6 +2036,12 @@ static int liquidio_xmit(struct sk_buff *skb, struct net_device *netdev)
tx_info->s.gso_segs = skb_shinfo(skb)->gso_segs;
}
+ /* HW insert VLAN tag */
+ if (skb_vlan_tag_present(skb)) {
+ irh->priority = skb_vlan_tag_get(skb) >> VLAN_PRIO_SHIFT;
+ irh->vlan = skb_vlan_tag_get(skb) & VLAN_VID_MASK;
+ }
+
status = octnet_send_nic_data_pkt(oct, &ndata);
if (status == IQ_SEND_FAILED)
goto lio_xmit_failed;
@@ -2074,6 +2091,61 @@ static void liquidio_tx_timeout(struct net_device *netdev)
txqs_wake(netdev);
}
+static int
+liquidio_vlan_rx_add_vid(struct net_device *netdev,
+ __be16 proto __attribute__((unused)), u16 vid)
+{
+ struct lio *lio = GET_LIO(netdev);
+ struct octeon_device *oct = lio->oct_dev;
+ struct octnic_ctrl_pkt nctrl;
+ int ret = 0;
+
+ memset(&nctrl, 0, sizeof(struct octnic_ctrl_pkt));
+
+ nctrl.ncmd.u64 = 0;
+ nctrl.ncmd.s.cmd = OCTNET_CMD_ADD_VLAN_FILTER;
+ nctrl.ncmd.s.param1 = vid;
+ nctrl.iq_no = lio->linfo.txpciq[0].s.q_no;
+ nctrl.wait_time = 100;
+ nctrl.netpndev = (u64)netdev;
+ nctrl.cb_fn = liquidio_link_ctrl_cmd_completion;
+
+ ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl);
+ if (ret < 0) {
+ dev_err(&oct->pci_dev->dev, "Add VLAN filter failed in core (ret: 0x%x)\n",
+ ret);
+ }
+
+ return ret;
+}
+
+static int
+liquidio_vlan_rx_kill_vid(struct net_device *netdev,
+ __be16 proto __attribute__((unused)), u16 vid)
+{
+ struct lio *lio = GET_LIO(netdev);
+ struct octeon_device *oct = lio->oct_dev;
+ struct octnic_ctrl_pkt nctrl;
+ int ret = 0;
+
+ memset(&nctrl, 0, sizeof(struct octnic_ctrl_pkt));
+
+ nctrl.ncmd.u64 = 0;
+ nctrl.ncmd.s.cmd = OCTNET_CMD_DEL_VLAN_FILTER;
+ nctrl.ncmd.s.param1 = vid;
+ nctrl.iq_no = lio->linfo.txpciq[0].s.q_no;
+ nctrl.wait_time = 100;
+ nctrl.netpndev = (u64)netdev;
+ nctrl.cb_fn = liquidio_link_ctrl_cmd_completion;
+
+ ret = octnet_send_nic_ctrl_pkt(lio->oct_dev, &nctrl);
+ if (ret < 0) {
+ dev_err(&oct->pci_dev->dev, "Add VLAN filter failed in core (ret: 0x%x)\n",
+ ret);
+ }
+ return ret;
+}
+
/** Sending command to enable/disable RX checksum offload
* @param netdev pointer to network device
* @param command OCTNET_CMD_TNL_RX_CSUM_CTL
@@ -2180,6 +2252,8 @@ static const struct net_device_ops lionetdevops = {
.ndo_set_mac_address = liquidio_set_mac,
.ndo_set_rx_mode = liquidio_set_mcast_list,
.ndo_tx_timeout = liquidio_tx_timeout,
+ .ndo_vlan_rx_add_vid = liquidio_vlan_rx_add_vid,
+ .ndo_vlan_rx_kill_vid = liquidio_vlan_rx_kill_vid,
.ndo_change_mtu = liquidio_change_mtu,
.ndo_fix_features = liquidio_fix_features,
.ndo_set_features = liquidio_set_features,
@@ -2388,6 +2462,12 @@ static int setup_nic_devices(struct octeon_device *octeon_dev)
| NETIF_F_LRO;
netif_set_gso_max_size(netdev, OCTNIC_GSO_MAX_SIZE);
+ netdev->vlan_features = lio->dev_capability;
+ /* Add any unchangeable hw features */
+ lio->dev_capability |= NETIF_F_HW_VLAN_CTAG_FILTER |
+ NETIF_F_HW_VLAN_CTAG_RX |
+ NETIF_F_HW_VLAN_CTAG_TX;
+
netdev->features = (lio->dev_capability & ~NETIF_F_LRO);
netdev->hw_features = lio->dev_capability;