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nfp: bpf: Convert ndo_setup_tc offloads to block callbacks 

Benefit from the newly introduced block callback infrastructure and
convert ndo_setup_tc calls for bpf offloads to block callbacks.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2017-10-19 15:50:44 +02:00 committed by David S. Miller
parent 363fc53b8b
commit 90d97315b3
1 changed files with 48 additions and 12 deletions
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60
drivers/net/ethernet/netronome/nfp/bpf/main.c
View File

@ -114,22 +114,58 @@ static void nfp_bpf_vnic_free(struct nfp_app *app, struct nfp_net *nn)
kfree(nn->app_priv);
}
static int nfp_bpf_setup_tc_block_cb(enum tc_setup_type type,
void *type_data, void *cb_priv)
{
struct tc_cls_bpf_offload *cls_bpf = type_data;
struct nfp_net *nn = cb_priv;
switch (type) {
case TC_SETUP_CLSBPF:
if (!nfp_net_ebpf_capable(nn) ||
cls_bpf->common.protocol != htons(ETH_P_ALL) ||
cls_bpf->common.chain_index)
return -EOPNOTSUPP;
return nfp_net_bpf_offload(nn, cls_bpf);
default:
return -EOPNOTSUPP;
}
}
static int nfp_bpf_setup_tc_block(struct net_device *netdev,
struct tc_block_offload *f)
{
struct nfp_net *nn = netdev_priv(netdev);
if (f->binder_type != TCF_BLOCK_BINDER_TYPE_CLSACT_INGRESS)
return -EOPNOTSUPP;
switch (f->command) {
case TC_BLOCK_BIND:
return tcf_block_cb_register(f->block,
nfp_bpf_setup_tc_block_cb,
nn, nn);
case TC_BLOCK_UNBIND:
tcf_block_cb_unregister(f->block,
nfp_bpf_setup_tc_block_cb,
nn);
return 0;
default:
return -EOPNOTSUPP;
}
}
static int nfp_bpf_setup_tc(struct nfp_app *app, struct net_device *netdev,
enum tc_setup_type type, void *type_data)
{
struct tc_cls_bpf_offload *cls_bpf = type_data;
struct nfp_net *nn = netdev_priv(netdev);
if (type != TC_SETUP_CLSBPF || !nfp_net_ebpf_capable(nn) ||
!is_classid_clsact_ingress(cls_bpf->common.classid) ||
cls_bpf->common.protocol != htons(ETH_P_ALL) ||
cls_bpf->common.chain_index)
switch (type) {
case TC_SETUP_CLSBPF:
return 0; /* will be removed after conversion from ndo */
case TC_SETUP_BLOCK:
return nfp_bpf_setup_tc_block(netdev, type_data);
default:
return -EOPNOTSUPP;
if (nn->dp.bpf_offload_xdp)
return -EBUSY;
return nfp_net_bpf_offload(nn, cls_bpf);
}
}
static bool nfp_bpf_tc_busy(struct nfp_app *app, struct nfp_net *nn)