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nfp: bpf: allocate vNIC priv for keeping track of the offloaded program 

After TC offloads were converted to callbacks we have no choice
but keep track of the offloaded filter in the driver.

Since this change came a little late in the release cycle
there were a number of conflicts and allocation of vNIC priv
structure seems to have slipped away in linux-next.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2017-12-27 15:36:49 -08:00 committed by David S. Miller
parent 4f36b935ec
commit 4f83435ad7
1 changed files with 29 additions and 1 deletions
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30
drivers/net/ethernet/netronome/nfp/bpf/main.c
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@ -84,6 +84,33 @@ static const char *nfp_bpf_extra_cap(struct nfp_app *app, struct nfp_net *nn)
return nfp_net_ebpf_capable(nn) ? "BPF" : "";
}
static int
nfp_bpf_vnic_alloc(struct nfp_app *app, struct nfp_net *nn, unsigned int id)
{
int err;
nn->app_priv = kzalloc(sizeof(struct nfp_bpf_vnic), GFP_KERNEL);
if (!nn->app_priv)
return -ENOMEM;
err = nfp_app_nic_vnic_alloc(app, nn, id);
if (err)
goto err_free_priv;
return 0;
err_free_priv:
kfree(nn->app_priv);
return err;
}
static void nfp_bpf_vnic_free(struct nfp_app *app, struct nfp_net *nn)
{
struct nfp_bpf_vnic *bv = nn->app_priv;
WARN_ON(bv->tc_prog);
kfree(bv);
}
static int nfp_bpf_setup_tc_block_cb(enum tc_setup_type type,
void *type_data, void *cb_priv)
{
@ -286,7 +313,8 @@ const struct nfp_app_type app_bpf = {
.extra_cap = nfp_bpf_extra_cap,
.vnic_alloc = nfp_app_nic_vnic_alloc,
.vnic_alloc = nfp_bpf_vnic_alloc,
.vnic_free = nfp_bpf_vnic_free,
.setup_tc = nfp_bpf_setup_tc,
.tc_busy = nfp_bpf_tc_busy,