nfp: bpf: plumb extack into functions related to XDP offload

Pass a pointer to an extack object to nfp_app_xdp_offload() in order to
prepare for extack usage in the nfp driver. Next step will be to forward
this extack pointer to nfp_net_bpf_offload(), once this function is able
to use it for printing error messages.

Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 9 insertions, 6 deletions

diff --git a/drivers/net/ethernet/netronome/nfp/bpf/main.c b/drivers/net/ethernet/netronome/nfp/bpf/main.c
index 4ee11bf2aed7..b755c9164ab9 100644
--- a/drivers/net/ethernet/netronome/nfp/bpf/main.c
+++ b/drivers/net/ethernet/netronome/nfp/bpf/main.c
@@ -54,7 +54,7 @@ static bool nfp_net_ebpf_capable(struct nfp_net *nn)
 
 static int
 nfp_bpf_xdp_offload(struct nfp_app *app, struct nfp_net *nn,
-                    struct bpf_prog *prog)
+                    struct bpf_prog *prog, struct netlink_ext_ack *extack)
 {
         bool running, xdp_running;
         int ret;
@@ -73,7 +73,7 @@ nfp_bpf_xdp_offload(struct nfp_app *app, struct nfp_net *nn,
         ret = nfp_net_bpf_offload(nn, prog, running);
         /* Stop offload if replace not possible */
         if (ret && prog)
-                nfp_bpf_xdp_offload(app, nn, NULL);
+                nfp_bpf_xdp_offload(app, nn, NULL, extack);
 
         nn->dp.bpf_offload_xdp = prog && !ret;
         return ret;
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_app.h b/drivers/net/ethernet/netronome/nfp/nfp_app.h
index 7e474df90598..437964afa8ee 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_app.h
+++ b/drivers/net/ethernet/netronome/nfp/nfp_app.h
@@ -43,6 +43,7 @@
 struct bpf_prog;
 struct net_device;
 struct netdev_bpf;
+struct netlink_ext_ack;
 struct pci_dev;
 struct sk_buff;
 struct sk_buff;
@@ -138,7 +139,8 @@ struct nfp_app_type {
         int (*bpf)(struct nfp_app *app, struct nfp_net *nn,
                    struct netdev_bpf *xdp);
         int (*xdp_offload)(struct nfp_app *app, struct nfp_net *nn,
-                           struct bpf_prog *prog);
+                           struct bpf_prog *prog,
+                           struct netlink_ext_ack *extack);
 
         int (*sriov_enable)(struct nfp_app *app, int num_vfs);
         void (*sriov_disable)(struct nfp_app *app);
@@ -324,11 +326,12 @@ static inline int nfp_app_bpf(struct nfp_app *app, struct nfp_net *nn,
 }
 
 static inline int nfp_app_xdp_offload(struct nfp_app *app, struct nfp_net *nn,
-                                      struct bpf_prog *prog)
+                                      struct bpf_prog *prog,
+                                      struct netlink_ext_ack *extack)
 {
         if (!app || !app->type->xdp_offload)
                 return -EOPNOTSUPP;
-        return app->type->xdp_offload(app, nn, prog);
+        return app->type->xdp_offload(app, nn, prog, extack);
 }
 
 static inline bool __nfp_app_ctrl_tx(struct nfp_app *app, struct sk_buff *skb)
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
index cdf52421eaca..c0fd351c86b1 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
@@ -3403,7 +3403,7 @@ nfp_net_xdp_setup(struct nfp_net *nn, struct bpf_prog *prog, u32 flags,
         if (err)
                 return err;
 
-        err = nfp_app_xdp_offload(nn->app, nn, offload_prog);
+        err = nfp_app_xdp_offload(nn->app, nn, offload_prog, extack);
         if (err && flags & XDP_FLAGS_HW_MODE)
                 return err;