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cxgb4vf: do vlan cleanup 

- unify vlan and nonvlan rx path
- kill pi->vlan_grp and cxgb4vf_vlan_rx_register
- allow to turn on/off rx/tx vlan accel via ethtool (set_features)

Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2011-07-20 04:54:16 +00:00 committed by David S. Miller
parent 133b08513a
commit 87737663d5
3 changed files with 40 additions and 45 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/net/cxgb4vf/adapter.h
View File

@ -92,7 +92,6 @@ struct sge_rspq;
*/
struct port_info {
struct adapter *adapter; /* our adapter */
struct vlan_group *vlan_grp; /* out VLAN group */
u16 viid; /* virtual interface ID */
s16 xact_addr_filt; /* index of our MAC address filter */
u16 rss_size; /* size of VI's RSS table slice */

50
drivers/net/cxgb4vf/cxgb4vf_main.c
View File

@ -209,18 +209,8 @@ void t4vf_os_link_changed(struct adapter *adapter, int pidx, int link_ok)
* ======================
*/
/*
* Record our new VLAN Group and enable/disable hardware VLAN Tag extraction
* based on whether the specified VLAN Group pointer is NULL or not.
*/
static void cxgb4vf_vlan_rx_register(struct net_device *dev,
struct vlan_group *grp)
{
struct port_info *pi = netdev_priv(dev);
pi->vlan_grp = grp;
t4vf_set_rxmode(pi->adapter, pi->viid, -1, -1, -1, -1, grp != NULL, 0);
}
/*
* Perform the MAC and PHY actions needed to enable a "port" (Virtual
@ -233,9 +223,9 @@ static int link_start(struct net_device *dev)
/*
* We do not set address filters and promiscuity here, the stack does
* that step explicitly.
* that step explicitly. Enable vlan accel.
*/
ret = t4vf_set_rxmode(pi->adapter, pi->viid, dev->mtu, -1, -1, -1, -1,
ret = t4vf_set_rxmode(pi->adapter, pi->viid, dev->mtu, -1, -1, -1, 1,
true);
if (ret == 0) {
ret = t4vf_change_mac(pi->adapter, pi->viid,
@ -1102,6 +1092,32 @@ static int cxgb4vf_change_mtu(struct net_device *dev, int new_mtu)
return ret;
}
static u32 cxgb4vf_fix_features(struct net_device *dev, u32 features)
{
/*
* Since there is no support for separate rx/tx vlan accel
* enable/disable make sure tx flag is always in same state as rx.
*/
if (features & NETIF_F_HW_VLAN_RX)
features |= NETIF_F_HW_VLAN_TX;
else
features &= ~NETIF_F_HW_VLAN_TX;
return features;
}
static int cxgb4vf_set_features(struct net_device *dev, u32 features)
{
struct port_info *pi = netdev_priv(dev);
u32 changed = dev->features ^ features;
if (changed & NETIF_F_HW_VLAN_RX)
t4vf_set_rxmode(pi->adapter, pi->viid, -1, -1, -1, -1,
features & NETIF_F_HW_VLAN_TX, 0);
return 0;
}
/*
* Change the devices MAC address.
*/
@ -2431,7 +2447,8 @@ static const struct net_device_ops cxgb4vf_netdev_ops = {
.ndo_validate_addr = eth_validate_addr,
.ndo_do_ioctl = cxgb4vf_do_ioctl,
.ndo_change_mtu = cxgb4vf_change_mtu,
.ndo_vlan_rx_register = cxgb4vf_vlan_rx_register,
.ndo_fix_features = cxgb4vf_fix_features,
.ndo_set_features = cxgb4vf_set_features,
#ifdef CONFIG_NET_POLL_CONTROLLER
.ndo_poll_controller = cxgb4vf_poll_controller,
#endif
@ -2600,12 +2617,11 @@ static int __devinit cxgb4vf_pci_probe(struct pci_dev *pdev,
netdev->hw_features = NETIF_F_SG | TSO_FLAGS |
NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
NETIF_F_HW_VLAN_TX | NETIF_F_RXCSUM;
NETIF_F_HW_VLAN_RX | NETIF_F_RXCSUM;
netdev->vlan_features = NETIF_F_SG | TSO_FLAGS |
NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
NETIF_F_HIGHDMA;
netdev->features = netdev->hw_features |
NETIF_F_HW_VLAN_RX;
netdev->features = netdev->hw_features | NETIF_F_HW_VLAN_TX;
if (pci_using_dac)
netdev->features |= NETIF_F_HIGHDMA;

34
drivers/net/cxgb4vf/sge.c
View File

@ -1491,20 +1491,10 @@ static void do_gro(struct sge_eth_rxq *rxq, const struct pkt_gl *gl,
skb->ip_summed = CHECKSUM_UNNECESSARY;
skb_record_rx_queue(skb, rxq->rspq.idx);
if (unlikely(pkt->vlan_ex)) {
struct port_info *pi = netdev_priv(rxq->rspq.netdev);
struct vlan_group *grp = pi->vlan_grp;
rxq->stats.vlan_ex++;
if (likely(grp)) {
ret = vlan_gro_frags(&rxq->rspq.napi, grp,
be16_to_cpu(pkt->vlan));
goto stats;
}
}
if (pkt->vlan_ex)
__vlan_hwaccel_put_tag(skb, be16_to_cpu(pkt->vlan));
ret = napi_gro_frags(&rxq->rspq.napi);
stats:
if (ret == GRO_HELD)
rxq->stats.lro_pkts++;
else if (ret == GRO_MERGED || ret == GRO_MERGED_FREE)
@ -1525,7 +1515,6 @@ int t4vf_ethrx_handler(struct sge_rspq *rspq, const __be64 *rsp,
const struct pkt_gl *gl)
{
struct sk_buff *skb;
struct port_info *pi;
const struct cpl_rx_pkt *pkt = (void *)&rsp[1];
bool csum_ok = pkt->csum_calc && !pkt->err_vec;
struct sge_eth_rxq *rxq = container_of(rspq, struct sge_eth_rxq, rspq);
@ -1553,7 +1542,6 @@ int t4vf_ethrx_handler(struct sge_rspq *rspq, const __be64 *rsp,
__skb_pull(skb, PKTSHIFT);
skb->protocol = eth_type_trans(skb, rspq->netdev);
skb_record_rx_queue(skb, rspq->idx);
pi = netdev_priv(skb->dev);
rxq->stats.pkts++;
if (csum_ok && (rspq->netdev->features & NETIF_F_RXCSUM) &&
@ -1569,20 +1557,12 @@ int t4vf_ethrx_handler(struct sge_rspq *rspq, const __be64 *rsp,
} else
skb_checksum_none_assert(skb);
/*
* Deliver the packet to the stack.
*/
if (unlikely(pkt->vlan_ex)) {
struct vlan_group *grp = pi->vlan_grp;
if (pkt->vlan_ex) {
rxq->stats.vlan_ex++;
if (likely(grp))
vlan_hwaccel_receive_skb(skb, grp,
be16_to_cpu(pkt->vlan));
else
dev_kfree_skb_any(skb);
} else
netif_receive_skb(skb);
__vlan_hwaccel_put_tag(skb, be16_to_cpu(pkt->vlan));
}
netif_receive_skb(skb);
return 0;
}