Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from David Miller:

 1) Significantly shrink the core networking routing structures. Result
    of http://vger.kernel.org/~davem/seoul2017_netdev_keynote.pdf

 2) Add netdevsim driver for testing various offloads, from Jakub
    Kicinski.

 3) Support cross-chip FDB operations in DSA, from Vivien Didelot.

 4) Add a 2nd listener hash table for TCP, similar to what was done for
    UDP. From Martin KaFai Lau.

 5) Add eBPF based queue selection to tun, from Jason Wang.

 6) Lockless qdisc support, from John Fastabend.

 7) SCTP stream interleave support, from Xin Long.

 8) Smoother TCP receive autotuning, from Eric Dumazet.

 9) Lots of erspan tunneling enhancements, from William Tu.

10) Add true function call support to BPF, from Alexei Starovoitov.

11) Add explicit support for GRO HW offloading, from Michael Chan.

12) Support extack generation in more netlink subsystems. From Alexander
    Aring, Quentin Monnet, and Jakub Kicinski.

13) Add 1000BaseX, flow control, and EEE support to mvneta driver. From
    Russell King.

14) Add flow table abstraction to netfilter, from Pablo Neira Ayuso.

15) Many improvements and simplifications to the NFP driver bpf JIT,
    from Jakub Kicinski.

16) Support for ipv6 non-equal cost multipath routing, from Ido
    Schimmel.

17) Add resource abstration to devlink, from Arkadi Sharshevsky.

18) Packet scheduler classifier shared filter block support, from Jiri
    Pirko.

19) Avoid locking in act_csum, from Davide Caratti.

20) devinet_ioctl() simplifications from Al viro.

21) More TCP bpf improvements from Lawrence Brakmo.

22) Add support for onlink ipv6 route flag, similar to ipv4, from David
    Ahern.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1925 commits)
  tls: Add support for encryption using async offload accelerator
  ip6mr: fix stale iterator
  net/sched: kconfig: Remove blank help texts
  openvswitch: meter: Use 64-bit arithmetic instead of 32-bit
  tcp_nv: fix potential integer overflow in tcpnv_acked
  r8169: fix RTL8168EP take too long to complete driver initialization.
  qmi_wwan: Add support for Quectel EP06
  rtnetlink: enable IFLA_IF_NETNSID for RTM_NEWLINK
  ipmr: Fix ptrdiff_t print formatting
  ibmvnic: Wait for device response when changing MAC
  qlcnic: fix deadlock bug
  tcp: release sk_frag.page in tcp_disconnect
  ipv4: Get the address of interface correctly.
  net_sched: gen_estimator: fix lockdep splat
  net: macb: Handle HRESP error
  net/mlx5e: IPoIB, Fix copy-paste bug in flow steering refactoring
  ipv6: addrconf: break critical section in addrconf_verify_rtnl()
  ipv6: change route cache aging logic
  i40e/i40evf: Update DESC_NEEDED value to reflect larger value
  bnxt_en: cleanup DIM work on device shutdown
  ...

1 files changed, 50 insertions, 34 deletions

diff --git a/drivers/net/ethernet/netronome/nfp/nfp_app.h b/drivers/net/ethernet/netronome/nfp/nfp_app.h
index 0e5e030..437964a 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;
@@ -66,6 +67,9 @@ extern const struct nfp_app_type app_flower;
  * struct nfp_app_type - application definition
  * @id:		application ID
  * @name:	application name
+ * @ctrl_cap_mask:  ctrl vNIC capability mask, allows disabling features like
+ *		    IRQMOD which are on by default but counter-productive for
+ *		    control messages which are often latency-sensitive
  * @ctrl_has_meta:  control messages have prepend of type:5/port:CTRL
  *
  * Callbacks
@@ -77,18 +81,20 @@ extern const struct nfp_app_type app_flower;
  * @vnic_init:	vNIC netdev was registered
  * @vnic_clean:	vNIC netdev about to be unregistered
  * @repr_init:	representor about to be registered
+ * @repr_preclean:	representor about to unregistered, executed before app
+ *			reference to the it is removed
  * @repr_clean:	representor about to be unregistered
  * @repr_open:	representor netdev open callback
  * @repr_stop:	representor netdev stop callback
+ * @change_mtu:	MTU change on a netdev has been requested (veto-only, change
+ *		is not guaranteed to be committed)
  * @start:	start application logic
  * @stop:	stop application logic
  * @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
@@ -98,6 +104,7 @@ struct nfp_app_type {
 	enum nfp_app_id id;
 	const char *name;
 
+	u32 ctrl_cap_mask;
 	bool ctrl_has_meta;
 
 	int (*init)(struct nfp_app *app);
@@ -112,11 +119,15 @@ struct nfp_app_type {
 	void (*vnic_clean)(struct nfp_app *app, struct nfp_net *nn);
 
 	int (*repr_init)(struct nfp_app *app, struct net_device *netdev);
+	void (*repr_preclean)(struct nfp_app *app, struct net_device *netdev);
 	void (*repr_clean)(struct nfp_app *app, struct net_device *netdev);
 
 	int (*repr_open)(struct nfp_app *app, struct nfp_repr *repr);
 	int (*repr_stop)(struct nfp_app *app, struct nfp_repr *repr);
 
+	int (*change_mtu)(struct nfp_app *app, struct net_device *netdev,
+			  int new_mtu);
+
 	int (*start)(struct nfp_app *app);
 	void (*stop)(struct nfp_app *app);
 
@@ -125,14 +136,11 @@ 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);
+			   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);
@@ -163,6 +171,7 @@ struct nfp_app {
 	void *priv;
 };
 
+bool __nfp_ctrl_tx(struct nfp_net *nn, struct sk_buff *skb);
 bool nfp_ctrl_tx(struct nfp_net *nn, struct sk_buff *skb);
 
 static inline int nfp_app_init(struct nfp_app *app)
@@ -226,12 +235,27 @@ nfp_app_repr_init(struct nfp_app *app, struct net_device *netdev)
 }
 
 static inline void
+nfp_app_repr_preclean(struct nfp_app *app, struct net_device *netdev)
+{
+	if (app->type->repr_preclean)
+		app->type->repr_preclean(app, netdev);
+}
+
+static inline void
 nfp_app_repr_clean(struct nfp_app *app, struct net_device *netdev)
 {
 	if (app->type->repr_clean)
 		app->type->repr_clean(app, netdev);
 }
 
+static inline int
+nfp_app_change_mtu(struct nfp_app *app, struct net_device *netdev, int new_mtu)
+{
+	if (!app || !app->type->change_mtu)
+		return 0;
+	return app->type->change_mtu(app, netdev, new_mtu);
+}
+
 static inline int nfp_app_start(struct nfp_app *app, struct nfp_net *ctrl)
 {
 	app->ctrl = ctrl;
@@ -293,39 +317,29 @@ 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_xdp_offload(struct nfp_app *app, struct nfp_net *nn,
-				      struct bpf_prog *prog)
+static inline int nfp_app_bpf(struct nfp_app *app, struct nfp_net *nn,
+			      struct netdev_bpf *bpf)
 {
-	if (!app || !app->type->xdp_offload)
-		return -EOPNOTSUPP;
-	return app->type->xdp_offload(app, nn, prog);
+	if (!app || !app->type->bpf)
+		return -EINVAL;
+	return app->type->bpf(app, nn, bpf);
 }
 
-static inline int
-nfp_app_bpf_verifier_prep(struct nfp_app *app, struct nfp_net *nn,
-			  struct netdev_bpf *bpf)
+static inline int nfp_app_xdp_offload(struct nfp_app *app, struct nfp_net *nn,
+				      struct bpf_prog *prog,
+				      struct netlink_ext_ack *extack)
 {
-	if (!app || !app->type->bpf_verifier_prep)
+	if (!app || !app->type->xdp_offload)
 		return -EOPNOTSUPP;
-	return app->type->bpf_verifier_prep(app, nn, bpf);
+	return app->type->xdp_offload(app, nn, prog, extack);
 }
 
-static inline int
-nfp_app_bpf_translate(struct nfp_app *app, struct nfp_net *nn,
-		      struct bpf_prog *prog)
+static inline bool __nfp_app_ctrl_tx(struct nfp_app *app, struct sk_buff *skb)
 {
-	if (!app || !app->type->bpf_translate)
-		return -EOPNOTSUPP;
-	return app->type->bpf_translate(app, nn, prog);
-}
+	trace_devlink_hwmsg(priv_to_devlink(app->pf), false, 0,
+			    skb->data, skb->len);
 
-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);
+	return __nfp_ctrl_tx(app->ctrl, skb);
 }
 
 static inline bool nfp_app_ctrl_tx(struct nfp_app *app, struct sk_buff *skb)
@@ -378,6 +392,8 @@ static inline struct net_device *nfp_app_repr_get(struct nfp_app *app, u32 id)
 struct nfp_app *nfp_app_from_netdev(struct net_device *netdev);
 
 struct nfp_reprs *
+nfp_reprs_get_locked(struct nfp_app *app, enum nfp_repr_type type);
+struct nfp_reprs *
 nfp_app_reprs_set(struct nfp_app *app, enum nfp_repr_type type,
 		  struct nfp_reprs *reprs);