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

Pull networking updates from David Miller:
 "Here is what we have this merge window:

   1) Support SW steering for mlx5 Connect-X6Dx, from Yevgeny Kliteynik.

   2) Add RSS multi group support to octeontx2-pf driver, from Geetha
      Sowjanya.

   3) Add support for KS8851 PHY. From Marek Vasut.

   4) Add support for GarfieldPeak bluetooth controller from Kiran K.

   5) Add support for half-duplex tcan4x5x can controllers.

   6) Add batch skb rx processing to bcrm63xx_enet, from Sieng Piaw
      Liew.

   7) Rework RX port offload infrastructure, particularly wrt, UDP
      tunneling, from Jakub Kicinski.

   8) Add BCM72116 PHY support, from Florian Fainelli.

   9) Remove Dsa specific notifiers, they are unnecessary. From Vladimir
      Oltean.

  10) Add support for picosecond rx delay in dwmac-meson8b chips. From
      Martin Blumenstingl.

  11) Support TSO on xfrm interfaces from Eyal Birger.

  12) Add support for MP_PRIO to mptcp stack, from Geliang Tang.

  13) Support BCM4908 integrated switch, from Rafał Miłecki.

  14) Support for directly accessing kernel module variables via module
      BTF info, from Andrii Naryiko.

  15) Add DASH (esktop and mobile Architecture for System Hardware)
      support to r8169 driver, from Heiner Kallweit.

  16) Add rx vlan filtering to dpaa2-eth, from Ionut-robert Aron.

  17) Add support for 100 base0x SFP devices, from Bjarni Jonasson.

  18) Support link aggregation in DSA, from Tobias Waldekranz.

  19) Support for bitwidse atomics in bpf, from Brendan Jackman.

  20) SmartEEE support in at803x driver, from Russell King.

  21) Add support for flow based tunneling to GTP, from Pravin B Shelar.

  22) Allow arbitrary number of interconnrcts in ipa, from Alex Elder.

  23) TLS RX offload for bonding, from Tariq Toukan.

  24) RX decap offklload support in mac80211, from Felix Fietkou.

  25) devlink health saupport in octeontx2-af, from George Cherian.

  26) Add TTL attr to SCM_TIMESTAMP_OPT_STATS, from Yousuk Seung

  27) Delegated actionss support in mptcp, from Paolo Abeni.

  28) Support receive timestamping when doin zerocopy tcp receive. From
      Arjun Ray.

  29) HTB offload support for mlx5, from Maxim Mikityanskiy.

  30) UDP GRO forwarding, from Maxim Mikityanskiy.

  31) TAPRIO offloading in dsa hellcreek driver, from Kurt Kanzenbach.

  32) Weighted random twos choice algorithm for ipvs, from Darby Payne.

  33) Fix netdev registration deadlock, from Johannes Berg.

  34) Various conversions to new tasklet api, from EmilRenner Berthing.

  35) Bulk skb allocations in veth, from Lorenzo Bianconi.

  36) New ethtool interface for lane setting, from Danielle Ratson.

  37) Offload failiure notifications for routes, from Amit Cohen.

  38) BCM4908 support, from Rafał Miłecki.

  39) Support several new iwlwifi chips, from Ihab Zhaika.

  40) Flow drector support for ipv6 in i40e, from Przemyslaw Patynowski.

  41) Support for mhi prrotocols, from Loic Poulain.

  42) Optimize bpf program stats.

  43) Implement RFC6056, for better port randomization, from Eric
      Dumazet.

  44) hsr tag offloading support from George McCollister.

  45) Netpoll support in qede, from Bhaskar Upadhaya.

  46) 2005/400g speed support in bonding 3ad mode, from Nikolay
      Aleksandrov.

  47) Netlink event support in mptcp, from Florian Westphal.

  48) Better skbuff caching, from Alexander Lobakin.

  49) MRP (Media Redundancy Protocol) offloading in DSA and a few
      drivers, from Horatiu Vultur.

  50) mqprio saupport in mvneta, from Maxime Chevallier.

  51) Remove of_phy_attach, no longer needed, from Florian Fainelli"

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1766 commits)
  octeontx2-pf: Fix otx2_get_fecparam()
  cteontx2-pf: cn10k: Prevent harmless double shift bugs
  net: stmmac: Add PCI bus info to ethtool driver query output
  ptp: ptp_clockmatrix: clean-up - parenthesis around a == b are unnecessary
  ptp: ptp_clockmatrix: Simplify code - remove unnecessary `err` variable.
  ptp: ptp_clockmatrix: Coding style - tighten vertical spacing.
  ptp: ptp_clockmatrix: Clean-up dev_*() messages.
  ptp: ptp_clockmatrix: Remove unused header declarations.
  ptp: ptp_clockmatrix: Add alignment of 1 PPS to idtcm_perout_enable.
  ptp: ptp_clockmatrix: Add wait_for_sys_apll_dpll_lock.
  net: stmmac: dwmac-sun8i: Add a shutdown callback
  net: stmmac: dwmac-sun8i: Minor probe function cleanup
  net: stmmac: dwmac-sun8i: Use reset_control_reset
  net: stmmac: dwmac-sun8i: Remove unnecessary PHY power check
  net: stmmac: dwmac-sun8i: Return void from PHY unpower
  r8169: use macro pm_ptr
  net: mdio: Remove of_phy_attach()
  net: mscc: ocelot: select PACKING in the Kconfig
  net: re-solve some conflicts after net -> net-next merge
  net: dsa: tag_rtl4_a: Support also egress tags
  ...

1 files changed, 7 insertions, 129 deletions

diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h
index 197a79535cc2..ac4d83a1ab81 100644
--- a/include/linux/can/dev.h
+++ b/include/linux/can/dev.h
@@ -15,8 +15,10 @@
 #define _CAN_DEV_H
 
 #include <linux/can.h>
+#include <linux/can/bittiming.h>
 #include <linux/can/error.h>
 #include <linux/can/led.h>
+#include <linux/can/length.h>
 #include <linux/can/netlink.h>
 #include <linux/can/skb.h>
 #include <linux/netdevice.h>
@@ -82,118 +84,6 @@ struct can_priv {
 #endif
 };
 
-#define CAN_SYNC_SEG 1
-
-/*
- * can_bit_time() - Duration of one bit
- *
- * Please refer to ISO 11898-1:2015, section 11.3.1.1 "Bit time" for
- * additional information.
- *
- * Return: the number of time quanta in one bit.
- */
-static inline unsigned int can_bit_time(const struct can_bittiming *bt)
-{
-	return CAN_SYNC_SEG + bt->prop_seg + bt->phase_seg1 + bt->phase_seg2;
-}
-
-/*
- * can_cc_dlc2len(value) - convert a given data length code (dlc) of a
- * Classical CAN frame into a valid data length of max. 8 bytes.
- *
- * To be used in the CAN netdriver receive path to ensure conformance with
- * ISO 11898-1 Chapter 8.4.2.3 (DLC field)
- */
-#define can_cc_dlc2len(dlc)	(min_t(u8, (dlc), CAN_MAX_DLEN))
-
-/* Check for outgoing skbs that have not been created by the CAN subsystem */
-static inline bool can_skb_headroom_valid(struct net_device *dev,
-					  struct sk_buff *skb)
-{
-	/* af_packet creates a headroom of HH_DATA_MOD bytes which is fine */
-	if (WARN_ON_ONCE(skb_headroom(skb) < sizeof(struct can_skb_priv)))
-		return false;
-
-	/* af_packet does not apply CAN skb specific settings */
-	if (skb->ip_summed == CHECKSUM_NONE) {
-		/* init headroom */
-		can_skb_prv(skb)->ifindex = dev->ifindex;
-		can_skb_prv(skb)->skbcnt = 0;
-
-		skb->ip_summed = CHECKSUM_UNNECESSARY;
-
-		/* perform proper loopback on capable devices */
-		if (dev->flags & IFF_ECHO)
-			skb->pkt_type = PACKET_LOOPBACK;
-		else
-			skb->pkt_type = PACKET_HOST;
-
-		skb_reset_mac_header(skb);
-		skb_reset_network_header(skb);
-		skb_reset_transport_header(skb);
-	}
-
-	return true;
-}
-
-/* Drop a given socketbuffer if it does not contain a valid CAN frame. */
-static inline bool can_dropped_invalid_skb(struct net_device *dev,
-					  struct sk_buff *skb)
-{
-	const struct canfd_frame *cfd = (struct canfd_frame *)skb->data;
-
-	if (skb->protocol == htons(ETH_P_CAN)) {
-		if (unlikely(skb->len != CAN_MTU ||
-			     cfd->len > CAN_MAX_DLEN))
-			goto inval_skb;
-	} else if (skb->protocol == htons(ETH_P_CANFD)) {
-		if (unlikely(skb->len != CANFD_MTU ||
-			     cfd->len > CANFD_MAX_DLEN))
-			goto inval_skb;
-	} else
-		goto inval_skb;
-
-	if (!can_skb_headroom_valid(dev, skb))
-		goto inval_skb;
-
-	return false;
-
-inval_skb:
-	kfree_skb(skb);
-	dev->stats.tx_dropped++;
-	return true;
-}
-
-static inline bool can_is_canfd_skb(const struct sk_buff *skb)
-{
-	/* the CAN specific type of skb is identified by its data length */
-	return skb->len == CANFD_MTU;
-}
-
-/* helper to get the data length code (DLC) for Classical CAN raw DLC access */
-static inline u8 can_get_cc_dlc(const struct can_frame *cf, const u32 ctrlmode)
-{
-	/* return len8_dlc as dlc value only if all conditions apply */
-	if ((ctrlmode & CAN_CTRLMODE_CC_LEN8_DLC) &&
-	    (cf->len == CAN_MAX_DLEN) &&
-	    (cf->len8_dlc > CAN_MAX_DLEN && cf->len8_dlc <= CAN_MAX_RAW_DLC))
-		return cf->len8_dlc;
-
-	/* return the payload length as dlc value */
-	return cf->len;
-}
-
-/* helper to set len and len8_dlc value for Classical CAN raw DLC access */
-static inline void can_frame_set_cc_len(struct can_frame *cf, const u8 dlc,
-					const u32 ctrlmode)
-{
-	/* the caller already ensured that dlc is a value from 0 .. 15 */
-	if (ctrlmode & CAN_CTRLMODE_CC_LEN8_DLC && dlc > CAN_MAX_DLEN)
-		cf->len8_dlc = dlc;
-
-	/* limit the payload length 'len' to CAN_MAX_DLEN */
-	cf->len = can_cc_dlc2len(dlc);
-}
 
 /* helper to define static CAN controller features at device creation time */
 static inline void can_set_static_ctrlmode(struct net_device *dev,
@@ -210,11 +100,7 @@ static inline void can_set_static_ctrlmode(struct net_device *dev,
 		dev->mtu = CANFD_MTU;
 }
 
-/* get data length from raw data length code (DLC) */
-u8 can_fd_dlc2len(u8 dlc);
-
-/* map the sanitized data length to an appropriate data length code */
-u8 can_fd_len2dlc(u8 len);
+void can_setup(struct net_device *dev);
 
 struct net_device *alloc_candev_mqs(int sizeof_priv, unsigned int echo_skb_max,
 				    unsigned int txqs, unsigned int rxqs);
@@ -237,26 +123,18 @@ void unregister_candev(struct net_device *dev);
 int can_restart_now(struct net_device *dev);
 void can_bus_off(struct net_device *dev);
 
+const char *can_get_state_str(const enum can_state state);
 void can_change_state(struct net_device *dev, struct can_frame *cf,
 		      enum can_state tx_state, enum can_state rx_state);
 
-int can_put_echo_skb(struct sk_buff *skb, struct net_device *dev,
-		     unsigned int idx);
-struct sk_buff *__can_get_echo_skb(struct net_device *dev, unsigned int idx,
-				   u8 *len_ptr);
-unsigned int can_get_echo_skb(struct net_device *dev, unsigned int idx);
-void can_free_echo_skb(struct net_device *dev, unsigned int idx);
-
 #ifdef CONFIG_OF
 void of_can_transceiver(struct net_device *dev);
 #else
 static inline void of_can_transceiver(struct net_device *dev) { }
 #endif
 
-struct sk_buff *alloc_can_skb(struct net_device *dev, struct can_frame **cf);
-struct sk_buff *alloc_canfd_skb(struct net_device *dev,
-				struct canfd_frame **cfd);
-struct sk_buff *alloc_can_err_skb(struct net_device *dev,
-				  struct can_frame **cf);
+extern struct rtnl_link_ops can_link_ops;
+int can_netlink_register(void);
+void can_netlink_unregister(void);
 
 #endif /* !_CAN_DEV_H */