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Date: Thu, 4 Jan 2018 22:09:24 -0800
From: Jakub Kicinski <jakub.kicinski@...ronome.com>
To: netdev@...r.kernel.org, alexei.starovoitov@...il.com,
daniel@...earbox.net, davem@...emloft.net
Cc: oss-drivers@...ronome.com, tehnerd@...com,
Jakub Kicinski <jakub.kicinski@...ronome.com>
Subject: [PATCH bpf-next 09/16] nfp: hand over to BPF offload app at coarser granularity
Instead of having an app callback per message type hand off
all offload-related handling to apps with one "rest of ndo_bpf"
callback.
Signed-off-by: Jakub Kicinski <jakub.kicinski@...ronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@...ronome.com>
---
drivers/net/ethernet/netronome/nfp/bpf/main.c | 5 +--
drivers/net/ethernet/netronome/nfp/bpf/main.h | 8 +---
drivers/net/ethernet/netronome/nfp/bpf/offload.c | 25 +++++++++---
drivers/net/ethernet/netronome/nfp/nfp_app.h | 47 +++++-----------------
.../net/ethernet/netronome/nfp/nfp_net_common.c | 10 +----
5 files changed, 34 insertions(+), 61 deletions(-)
diff --git a/drivers/net/ethernet/netronome/nfp/bpf/main.c b/drivers/net/ethernet/netronome/nfp/bpf/main.c
index 4b63167906ca..684b16cb6a20 100644
--- a/drivers/net/ethernet/netronome/nfp/bpf/main.c
+++ b/drivers/net/ethernet/netronome/nfp/bpf/main.c
@@ -318,9 +318,6 @@ const struct nfp_app_type app_bpf = {
.setup_tc = nfp_bpf_setup_tc,
.tc_busy = nfp_bpf_tc_busy,
+ .bpf = nfp_ndo_bpf,
.xdp_offload = nfp_bpf_xdp_offload,
-
- .bpf_verifier_prep = nfp_bpf_verifier_prep,
- .bpf_translate = nfp_bpf_translate,
- .bpf_destroy = nfp_bpf_destroy,
};
diff --git a/drivers/net/ethernet/netronome/nfp/bpf/main.h b/drivers/net/ethernet/netronome/nfp/bpf/main.h
index 89a9b6393882..c7d815455cb0 100644
--- a/drivers/net/ethernet/netronome/nfp/bpf/main.h
+++ b/drivers/net/ethernet/netronome/nfp/bpf/main.h
@@ -244,15 +244,11 @@ struct netdev_bpf;
struct nfp_app;
struct nfp_net;
+int nfp_ndo_bpf(struct nfp_app *app, struct nfp_net *nn,
+ struct netdev_bpf *bpf);
int nfp_net_bpf_offload(struct nfp_net *nn, struct bpf_prog *prog,
bool old_prog);
-int nfp_bpf_verifier_prep(struct nfp_app *app, struct nfp_net *nn,
- struct netdev_bpf *bpf);
-int nfp_bpf_translate(struct nfp_app *app, struct nfp_net *nn,
- struct bpf_prog *prog);
-int nfp_bpf_destroy(struct nfp_app *app, struct nfp_net *nn,
- struct bpf_prog *prog);
struct nfp_insn_meta *
nfp_bpf_goto_meta(struct nfp_prog *nfp_prog, struct nfp_insn_meta *meta,
unsigned int insn_idx, unsigned int n_insns);
diff --git a/drivers/net/ethernet/netronome/nfp/bpf/offload.c b/drivers/net/ethernet/netronome/nfp/bpf/offload.c
index 1a67673261b7..12a48b7583a3 100644
--- a/drivers/net/ethernet/netronome/nfp/bpf/offload.c
+++ b/drivers/net/ethernet/netronome/nfp/bpf/offload.c
@@ -102,8 +102,9 @@ static void nfp_prog_free(struct nfp_prog *nfp_prog)
kfree(nfp_prog);
}
-int nfp_bpf_verifier_prep(struct nfp_app *app, struct nfp_net *nn,
- struct netdev_bpf *bpf)
+static int
+nfp_bpf_verifier_prep(struct nfp_app *app, struct nfp_net *nn,
+ struct netdev_bpf *bpf)
{
struct bpf_prog *prog = bpf->verifier.prog;
struct nfp_prog *nfp_prog;
@@ -133,8 +134,7 @@ int nfp_bpf_verifier_prep(struct nfp_app *app, struct nfp_net *nn,
return ret;
}
-int nfp_bpf_translate(struct nfp_app *app, struct nfp_net *nn,
- struct bpf_prog *prog)
+static int nfp_bpf_translate(struct nfp_net *nn, struct bpf_prog *prog)
{
struct nfp_prog *nfp_prog = prog->aux->offload->dev_priv;
unsigned int stack_size;
@@ -161,8 +161,7 @@ int nfp_bpf_translate(struct nfp_app *app, struct nfp_net *nn,
return nfp_bpf_jit(nfp_prog);
}
-int nfp_bpf_destroy(struct nfp_app *app, struct nfp_net *nn,
- struct bpf_prog *prog)
+static int nfp_bpf_destroy(struct nfp_net *nn, struct bpf_prog *prog)
{
struct nfp_prog *nfp_prog = prog->aux->offload->dev_priv;
@@ -172,6 +171,20 @@ int nfp_bpf_destroy(struct nfp_app *app, struct nfp_net *nn,
return 0;
}
+int nfp_ndo_bpf(struct nfp_app *app, struct nfp_net *nn, struct netdev_bpf *bpf)
+{
+ switch (bpf->command) {
+ case BPF_OFFLOAD_VERIFIER_PREP:
+ return nfp_bpf_verifier_prep(app, nn, bpf);
+ case BPF_OFFLOAD_TRANSLATE:
+ return nfp_bpf_translate(nn, bpf->offload.prog);
+ case BPF_OFFLOAD_DESTROY:
+ return nfp_bpf_destroy(nn, bpf->offload.prog);
+ default:
+ return -EINVAL;
+ }
+}
+
static int nfp_net_bpf_load(struct nfp_net *nn, struct bpf_prog *prog)
{
struct nfp_prog *nfp_prog = prog->aux->offload->dev_priv;
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_app.h b/drivers/net/ethernet/netronome/nfp/nfp_app.h
index 3af1943a8521..ee67a7202819 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_app.h
+++ b/drivers/net/ethernet/netronome/nfp/nfp_app.h
@@ -87,10 +87,8 @@ extern const struct nfp_app_type app_flower;
* @ctrl_msg_rx: control message handler
* @setup_tc: setup TC ndo
* @tc_busy: TC HW offload busy (rules loaded)
+ * @bpf: BPF ndo offload-related calls
* @xdp_offload: offload an XDP program
- * @bpf_verifier_prep: verifier prep for dev-specific BPF programs
- * @bpf_translate: translate call for dev-specific BPF programs
- * @bpf_destroy: destroy for dev-specific BPF programs
* @eswitch_mode_get: get SR-IOV eswitch mode
* @sriov_enable: app-specific sriov initialisation
* @sriov_disable: app-specific sriov clean-up
@@ -128,14 +126,10 @@ struct nfp_app_type {
int (*setup_tc)(struct nfp_app *app, struct net_device *netdev,
enum tc_setup_type type, void *type_data);
bool (*tc_busy)(struct nfp_app *app, struct nfp_net *nn);
+ 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);
- int (*bpf_verifier_prep)(struct nfp_app *app, struct nfp_net *nn,
- struct netdev_bpf *bpf);
- int (*bpf_translate)(struct nfp_app *app, struct nfp_net *nn,
- struct bpf_prog *prog);
- int (*bpf_destroy)(struct nfp_app *app, struct nfp_net *nn,
- struct bpf_prog *prog);
int (*sriov_enable)(struct nfp_app *app, int num_vfs);
void (*sriov_disable)(struct nfp_app *app);
@@ -303,6 +297,14 @@ static inline int nfp_app_setup_tc(struct nfp_app *app,
return app->type->setup_tc(app, netdev, type, type_data);
}
+static inline int nfp_app_bpf(struct nfp_app *app, struct nfp_net *nn,
+ struct netdev_bpf *bpf)
+{
+ if (!app || !app->type->bpf)
+ return -EINVAL;
+ return app->type->bpf(app, nn, bpf);
+}
+
static inline int nfp_app_xdp_offload(struct nfp_app *app, struct nfp_net *nn,
struct bpf_prog *prog)
{
@@ -311,33 +313,6 @@ static inline int nfp_app_xdp_offload(struct nfp_app *app, struct nfp_net *nn,
return app->type->xdp_offload(app, nn, prog);
}
-static inline int
-nfp_app_bpf_verifier_prep(struct nfp_app *app, struct nfp_net *nn,
- struct netdev_bpf *bpf)
-{
- if (!app || !app->type->bpf_verifier_prep)
- return -EOPNOTSUPP;
- return app->type->bpf_verifier_prep(app, nn, bpf);
-}
-
-static inline int
-nfp_app_bpf_translate(struct nfp_app *app, struct nfp_net *nn,
- struct bpf_prog *prog)
-{
- if (!app || !app->type->bpf_translate)
- return -EOPNOTSUPP;
- return app->type->bpf_translate(app, nn, prog);
-}
-
-static inline int
-nfp_app_bpf_destroy(struct nfp_app *app, struct nfp_net *nn,
- struct bpf_prog *prog)
-{
- if (!app || !app->type->bpf_destroy)
- return -EOPNOTSUPP;
- return app->type->bpf_destroy(app, nn, prog);
-}
-
static inline bool nfp_app_ctrl_tx(struct nfp_app *app, struct sk_buff *skb)
{
trace_devlink_hwmsg(priv_to_devlink(app->pf), false, 0,
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
index 0add4870ce2e..773089442b64 100644
--- a/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_common.c
@@ -3394,16 +3394,8 @@ static int nfp_net_xdp(struct net_device *netdev, struct netdev_bpf *xdp)
xdp->prog_id = nn->xdp_prog ? nn->xdp_prog->aux->id : 0;
xdp->prog_flags = nn->xdp_prog ? nn->xdp_flags : 0;
return 0;
- case BPF_OFFLOAD_VERIFIER_PREP:
- return nfp_app_bpf_verifier_prep(nn->app, nn, xdp);
- case BPF_OFFLOAD_TRANSLATE:
- return nfp_app_bpf_translate(nn->app, nn,
- xdp->offload.prog);
- case BPF_OFFLOAD_DESTROY:
- return nfp_app_bpf_destroy(nn->app, nn,
- xdp->offload.prog);
default:
- return -EINVAL;
+ return nfp_app_bpf(nn->app, nn, xdp);
}
}
--
2.15.1
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