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

Pull networking updates from David Miller:

 1) Support 6Ghz band in ath11k driver, from Rajkumar Manoharan.

 2) Support UDP segmentation in code TSO code, from Eric Dumazet.

 3) Allow flashing different flash images in cxgb4 driver, from Vishal
    Kulkarni.

 4) Add drop frames counter and flow status to tc flower offloading,
    from Po Liu.

 5) Support n-tuple filters in cxgb4, from Vishal Kulkarni.

 6) Various new indirect call avoidance, from Eric Dumazet and Brian
    Vazquez.

 7) Fix BPF verifier failures on 32-bit pointer arithmetic, from
    Yonghong Song.

 8) Support querying and setting hardware address of a port function via
    devlink, use this in mlx5, from Parav Pandit.

 9) Support hw ipsec offload on bonding slaves, from Jarod Wilson.

10) Switch qca8k driver over to phylink, from Jonathan McDowell.

11) In bpftool, show list of processes holding BPF FD references to
    maps, programs, links, and btf objects. From Andrii Nakryiko.

12) Several conversions over to generic power management, from Vaibhav
    Gupta.

13) Add support for SO_KEEPALIVE et al. to bpf_setsockopt(), from Dmitry
    Yakunin.

14) Various https url conversions, from Alexander A. Klimov.

15) Timestamping and PHC support for mscc PHY driver, from Antoine
    Tenart.

16) Support bpf iterating over tcp and udp sockets, from Yonghong Song.

17) Support 5GBASE-T i40e NICs, from Aleksandr Loktionov.

18) Add kTLS RX HW offload support to mlx5e, from Tariq Toukan.

19) Fix the ->ndo_start_xmit() return type to be netdev_tx_t in several
    drivers. From Luc Van Oostenryck.

20) XDP support for xen-netfront, from Denis Kirjanov.

21) Support receive buffer autotuning in MPTCP, from Florian Westphal.

22) Support EF100 chip in sfc driver, from Edward Cree.

23) Add XDP support to mvpp2 driver, from Matteo Croce.

24) Support MPTCP in sock_diag, from Paolo Abeni.

25) Commonize UDP tunnel offloading code by creating udp_tunnel_nic
    infrastructure, from Jakub Kicinski.

26) Several pci_ --> dma_ API conversions, from Christophe JAILLET.

27) Add FLOW_ACTION_POLICE support to mlxsw, from Ido Schimmel.

28) Add SK_LOOKUP bpf program type, from Jakub Sitnicki.

29) Refactor a lot of networking socket option handling code in order to
    avoid set_fs() calls, from Christoph Hellwig.

30) Add rfc4884 support to icmp code, from Willem de Bruijn.

31) Support TBF offload in dpaa2-eth driver, from Ioana Ciornei.

32) Support XDP_REDIRECT in qede driver, from Alexander Lobakin.

33) Support PCI relaxed ordering in mlx5 driver, from Aya Levin.

34) Support TCP syncookies in MPTCP, from Flowian Westphal.

35) Fix several tricky cases of PMTU handling wrt. briding, from Stefano
    Brivio.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2056 commits)
  net: thunderx: initialize VF's mailbox mutex before first usage
  usb: hso: remove bogus check for EINPROGRESS
  usb: hso: no complaint about kmalloc failure
  hso: fix bailout in error case of probe
  ip_tunnel_core: Fix build for archs without _HAVE_ARCH_IPV6_CSUM
  selftests/net: relax cpu affinity requirement in msg_zerocopy test
  mptcp: be careful on subflow creation
  selftests: rtnetlink: make kci_test_encap() return sub-test result
  selftests: rtnetlink: correct the final return value for the test
  net: dsa: sja1105: use detected device id instead of DT one on mismatch
  tipc: set ub->ifindex for local ipv6 address
  ipv6: add ipv6_dev_find()
  net: openvswitch: silence suspicious RCU usage warning
  Revert "vxlan: fix tos value before xmit"
  ptp: only allow phase values lower than 1 period
  farsync: switch from 'pci_' to 'dma_' API
  wan: wanxl: switch from 'pci_' to 'dma_' API
  hv_netvsc: do not use VF device if link is down
  dpaa2-eth: Fix passing zero to 'PTR_ERR' warning
  net: macb: Properly handle phylink on at91sam9x
  ...

1 files changed, 51 insertions, 6 deletions

diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2.h b/drivers/net/ethernet/marvell/mvpp2/mvpp2.h
index 543a310ec102..32753cc771bf 100644
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2.h
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2.h
@@ -15,6 +15,19 @@
 #include <linux/phy.h>
 #include <linux/phylink.h>
 #include <net/flow_offload.h>
+#include <net/page_pool.h>
+#include <linux/bpf.h>
+#include <net/xdp.h>
+
+/* The PacketOffset field is measured in units of 32 bytes and is 3 bits wide,
+ * so the maximum offset is 7 * 32 = 224
+ */
+#define MVPP2_SKB_HEADROOM	min(max(XDP_PACKET_HEADROOM, NET_SKB_PAD), 224)
+
+#define MVPP2_XDP_PASS		0
+#define MVPP2_XDP_DROPPED	BIT(0)
+#define MVPP2_XDP_TX		BIT(1)
+#define MVPP2_XDP_REDIR		BIT(2)
 
 /* Fifo Registers */
 #define MVPP2_RX_DATA_FIFO_SIZE_REG(port)	(0x00 + 4 * (port))
@@ -628,10 +641,12 @@
 	ALIGN((mtu) + MVPP2_MH_SIZE + MVPP2_VLAN_TAG_LEN + \
 	      ETH_HLEN + ETH_FCS_LEN, cache_line_size())
 
-#define MVPP2_RX_BUF_SIZE(pkt_size)	((pkt_size) + NET_SKB_PAD)
+#define MVPP2_RX_BUF_SIZE(pkt_size)	((pkt_size) + MVPP2_SKB_HEADROOM)
 #define MVPP2_RX_TOTAL_SIZE(buf_size)	((buf_size) + MVPP2_SKB_SHINFO_SIZE)
 #define MVPP2_RX_MAX_PKT_SIZE(total_size) \
-	((total_size) - NET_SKB_PAD - MVPP2_SKB_SHINFO_SIZE)
+	((total_size) - MVPP2_SKB_HEADROOM - MVPP2_SKB_SHINFO_SIZE)
+
+#define MVPP2_MAX_RX_BUF_SIZE	(PAGE_SIZE - MVPP2_SKB_SHINFO_SIZE - MVPP2_SKB_HEADROOM)
 
 #define MVPP2_BIT_TO_BYTE(bit)		((bit) / 8)
 #define MVPP2_BIT_TO_WORD(bit)		((bit) / 32)
@@ -689,9 +704,9 @@ enum mvpp2_prs_l3_cast {
 #define MVPP2_BM_COOKIE_POOL_OFFS	8
 #define MVPP2_BM_COOKIE_CPU_OFFS	24
 
-#define MVPP2_BM_SHORT_FRAME_SIZE		512
-#define MVPP2_BM_LONG_FRAME_SIZE		2048
-#define MVPP2_BM_JUMBO_FRAME_SIZE		10240
+#define MVPP2_BM_SHORT_FRAME_SIZE	704	/* frame size 128 */
+#define MVPP2_BM_LONG_FRAME_SIZE	2240	/* frame size 1664 */
+#define MVPP2_BM_JUMBO_FRAME_SIZE	10432	/* frame size 9856 */
 /* BM short pool packet size
  * These value assure that for SWF the total number
  * of bytes allocated for each buffer will be 512
@@ -820,6 +835,9 @@ struct mvpp2 {
 
 	/* RSS Indirection tables */
 	struct mvpp2_rss_table *rss_tables[MVPP22_N_RSS_TABLES];
+
+	/* page_pool allocator */
+	struct page_pool *page_pool[MVPP2_PORT_MAX_RXQ];
 };
 
 struct mvpp2_pcpu_stats {
@@ -828,6 +846,14 @@ struct mvpp2_pcpu_stats {
 	u64	rx_bytes;
 	u64	tx_packets;
 	u64	tx_bytes;
+	/* XDP */
+	u64	xdp_redirect;
+	u64	xdp_pass;
+	u64	xdp_drop;
+	u64	xdp_xmit;
+	u64	xdp_xmit_err;
+	u64	xdp_tx;
+	u64	xdp_tx_err;
 };
 
 /* Per-CPU port control */
@@ -909,6 +935,8 @@ struct mvpp2_port {
 	unsigned int ntxqs;
 	struct net_device *dev;
 
+	struct bpf_prog *xdp_prog;
+
 	int pkt_size;
 
 	/* Per-CPU port control */
@@ -928,6 +956,8 @@ struct mvpp2_port {
 	struct mvpp2_pcpu_stats __percpu *stats;
 	u64 *ethtool_stats;
 
+	unsigned long state;
+
 	/* Per-port work and its lock to gather hardware statistics */
 	struct mutex gather_stats_lock;
 	struct delayed_work stats_work;
@@ -1060,9 +1090,20 @@ struct mvpp2_rx_desc {
 	};
 };
 
+enum mvpp2_tx_buf_type {
+	MVPP2_TYPE_SKB,
+	MVPP2_TYPE_XDP_TX,
+	MVPP2_TYPE_XDP_NDO,
+};
+
 struct mvpp2_txq_pcpu_buf {
+	enum mvpp2_tx_buf_type type;
+
 	/* Transmitted SKB */
-	struct sk_buff *skb;
+	union {
+		struct xdp_frame *xdpf;
+		struct sk_buff *skb;
+	};
 
 	/* Physical address of transmitted buffer */
 	dma_addr_t dma;
@@ -1161,6 +1202,10 @@ struct mvpp2_rx_queue {
 
 	/* Port's logic RXQ number to which physical RXQ is mapped */
 	int logic_rxq;
+
+	/* XDP memory accounting */
+	struct xdp_rxq_info xdp_rxq_short;
+	struct xdp_rxq_info xdp_rxq_long;
 };
 
 struct mvpp2_bm_pool {