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bnxt_en: Add hardware NTUPLE filter for encapsulated packets. 

If skb_flow_dissect_flow_keys() returns with the encapsulation flag
set, pass the information to the firmware to setup the NTUPLE filter
accordingly.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2017-02-12 19:18:14 -05:00 committed by David S. Miller
parent 964fd4801d
commit 61aad724ec
1 changed files with 14 additions and 3 deletions
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17
drivers/net/ethernet/broadcom/bnxt/bnxt.c
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@ -3456,6 +3456,9 @@ static int bnxt_hwrm_cfa_ntuple_filter_free(struct bnxt *bp,
CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_PORT_MASK | \
CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_DST_ID)
#define BNXT_NTP_TUNNEL_FLTR_FLAG \
CFA_NTUPLE_FILTER_ALLOC_REQ_ENABLES_TUNNEL_TYPE
static int bnxt_hwrm_cfa_ntuple_filter_alloc(struct bnxt *bp,
struct bnxt_ntuple_filter *fltr)
{
@ -3496,6 +3499,11 @@ static int bnxt_hwrm_cfa_ntuple_filter_alloc(struct bnxt *bp,
req.dst_ipaddr[0] = keys->addrs.v4addrs.dst;
req.dst_ipaddr_mask[0] = cpu_to_be32(0xffffffff);
}
if (keys->control.flags & FLOW_DIS_ENCAPSULATION) {
req.enables |= cpu_to_le32(BNXT_NTP_TUNNEL_FLTR_FLAG);
req.tunnel_type =
CFA_NTUPLE_FILTER_ALLOC_REQ_TUNNEL_TYPE_ANYTUNNEL;
}
req.src_port = keys->ports.src;
req.src_port_mask = cpu_to_be16(0xffff);
@ -6869,6 +6877,7 @@ static bool bnxt_fltr_match(struct bnxt_ntuple_filter *f1,
keys1->ports.ports == keys2->ports.ports &&
keys1->basic.ip_proto == keys2->basic.ip_proto &&
keys1->basic.n_proto == keys2->basic.n_proto &&
keys1->control.flags == keys2->control.flags &&
ether_addr_equal(f1->src_mac_addr, f2->src_mac_addr) &&
ether_addr_equal(f1->dst_mac_addr, f2->dst_mac_addr))
return true;
@ -6886,9 +6895,6 @@ static int bnxt_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
int rc = 0, idx, bit_id, l2_idx = 0;
struct hlist_head *head;
if (skb->encapsulation)
return -EPROTONOSUPPORT;
if (!ether_addr_equal(dev->dev_addr, eth->h_dest)) {
struct bnxt_vnic_info *vnic = &bp->vnic_info[0];
int off = 0, j;
@ -6927,6 +6933,11 @@ static int bnxt_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb,
rc = -EPROTONOSUPPORT;
goto err_free;
}
if ((fkeys->control.flags & FLOW_DIS_ENCAPSULATION) &&
bp->hwrm_spec_code < 0x10601) {
rc = -EPROTONOSUPPORT;
goto err_free;
}
memcpy(new_fltr->dst_mac_addr, eth->h_dest, ETH_ALEN);
memcpy(new_fltr->src_mac_addr, eth->h_source, ETH_ALEN);