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

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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,