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, 24 insertions, 90 deletions

diff --git a/net/switchdev/switchdev.c b/net/switchdev/switchdev.c
index 2c1ffc9ba2eb..89a36db47ab4 100644
--- a/net/switchdev/switchdev.c
+++ b/net/switchdev/switchdev.c
@@ -101,19 +101,18 @@ static int switchdev_deferred_enqueue(struct net_device *dev,
 static int switchdev_port_attr_notify(enum switchdev_notifier_type nt,
 				      struct net_device *dev,
 				      const struct switchdev_attr *attr,
-				      struct switchdev_trans *trans)
+				      struct netlink_ext_ack *extack)
 {
 	int err;
 	int rc;
 
 	struct switchdev_notifier_port_attr_info attr_info = {
 		.attr = attr,
-		.trans = trans,
 		.handled = false,
 	};
 
 	rc = call_switchdev_blocking_notifiers(nt, dev,
-					       &attr_info.info, NULL);
+					       &attr_info.info, extack);
 	err = notifier_to_errno(rc);
 	if (err) {
 		WARN_ON(!attr_info.handled);
@@ -127,36 +126,11 @@ static int switchdev_port_attr_notify(enum switchdev_notifier_type nt,
 }
 
 static int switchdev_port_attr_set_now(struct net_device *dev,
-				       const struct switchdev_attr *attr)
+				       const struct switchdev_attr *attr,
+				       struct netlink_ext_ack *extack)
 {
-	struct switchdev_trans trans;
-	int err;
-
-	/* Phase I: prepare for attr set. Driver/device should fail
-	 * here if there are going to be issues in the commit phase,
-	 * such as lack of resources or support.  The driver/device
-	 * should reserve resources needed for the commit phase here,
-	 * but should not commit the attr.
-	 */
-
-	trans.ph_prepare = true;
-	err = switchdev_port_attr_notify(SWITCHDEV_PORT_ATTR_SET, dev, attr,
-					 &trans);
-	if (err)
-		return err;
-
-	/* Phase II: commit attr set.  This cannot fail as a fault
-	 * of driver/device.  If it does, it's a bug in the driver/device
-	 * because the driver said everythings was OK in phase I.
-	 */
-
-	trans.ph_prepare = false;
-	err = switchdev_port_attr_notify(SWITCHDEV_PORT_ATTR_SET, dev, attr,
-					 &trans);
-	WARN(err, "%s: Commit of attribute (id=%d) failed.\n",
-	     dev->name, attr->id);
-
-	return err;
+	return switchdev_port_attr_notify(SWITCHDEV_PORT_ATTR_SET, dev, attr,
+					  extack);
 }
 
 static void switchdev_port_attr_set_deferred(struct net_device *dev,
@@ -165,7 +139,7 @@ static void switchdev_port_attr_set_deferred(struct net_device *dev,
 	const struct switchdev_attr *attr = data;
 	int err;
 
-	err = switchdev_port_attr_set_now(dev, attr);
+	err = switchdev_port_attr_set_now(dev, attr, NULL);
 	if (err && err != -EOPNOTSUPP)
 		netdev_err(dev, "failed (err=%d) to set attribute (id=%d)\n",
 			   err, attr->id);
@@ -185,21 +159,19 @@ static int switchdev_port_attr_set_defer(struct net_device *dev,
  *
  *	@dev: port device
  *	@attr: attribute to set
- *
- *	Use a 2-phase prepare-commit transaction model to ensure
- *	system is not left in a partially updated state due to
- *	failure from driver/device.
+ *	@extack: netlink extended ack, for error message propagation
  *
  *	rtnl_lock must be held and must not be in atomic section,
  *	in case SWITCHDEV_F_DEFER flag is not set.
  */
 int switchdev_port_attr_set(struct net_device *dev,
-			    const struct switchdev_attr *attr)
+			    const struct switchdev_attr *attr,
+			    struct netlink_ext_ack *extack)
 {
 	if (attr->flags & SWITCHDEV_F_DEFER)
 		return switchdev_port_attr_set_defer(dev, attr);
 	ASSERT_RTNL();
-	return switchdev_port_attr_set_now(dev, attr);
+	return switchdev_port_attr_set_now(dev, attr, extack);
 }
 EXPORT_SYMBOL_GPL(switchdev_port_attr_set);
 
@@ -221,7 +193,6 @@ static size_t switchdev_obj_size(const struct switchdev_obj *obj)
 static int switchdev_port_obj_notify(enum switchdev_notifier_type nt,
 				     struct net_device *dev,
 				     const struct switchdev_obj *obj,
-				     struct switchdev_trans *trans,
 				     struct netlink_ext_ack *extack)
 {
 	int rc;
@@ -229,7 +200,6 @@ static int switchdev_port_obj_notify(enum switchdev_notifier_type nt,
 
 	struct switchdev_notifier_port_obj_info obj_info = {
 		.obj = obj,
-		.trans = trans,
 		.handled = false,
 	};
 
@@ -244,48 +214,15 @@ static int switchdev_port_obj_notify(enum switchdev_notifier_type nt,
 	return 0;
 }
 
-static int switchdev_port_obj_add_now(struct net_device *dev,
-				      const struct switchdev_obj *obj,
-				      struct netlink_ext_ack *extack)
-{
-	struct switchdev_trans trans;
-	int err;
-
-	ASSERT_RTNL();
-
-	/* Phase I: prepare for obj add. Driver/device should fail
-	 * here if there are going to be issues in the commit phase,
-	 * such as lack of resources or support.  The driver/device
-	 * should reserve resources needed for the commit phase here,
-	 * but should not commit the obj.
-	 */
-
-	trans.ph_prepare = true;
-	err = switchdev_port_obj_notify(SWITCHDEV_PORT_OBJ_ADD,
-					dev, obj, &trans, extack);
-	if (err)
-		return err;
-
-	/* Phase II: commit obj add.  This cannot fail as a fault
-	 * of driver/device.  If it does, it's a bug in the driver/device
-	 * because the driver said everythings was OK in phase I.
-	 */
-
-	trans.ph_prepare = false;
-	err = switchdev_port_obj_notify(SWITCHDEV_PORT_OBJ_ADD,
-					dev, obj, &trans, extack);
-	WARN(err, "%s: Commit of object (id=%d) failed.\n", dev->name, obj->id);
-
-	return err;
-}
-
 static void switchdev_port_obj_add_deferred(struct net_device *dev,
 					    const void *data)
 {
 	const struct switchdev_obj *obj = data;
 	int err;
 
-	err = switchdev_port_obj_add_now(dev, obj, NULL);
+	ASSERT_RTNL();
+	err = switchdev_port_obj_notify(SWITCHDEV_PORT_OBJ_ADD,
+					dev, obj, NULL);
 	if (err && err != -EOPNOTSUPP)
 		netdev_err(dev, "failed (err=%d) to add object (id=%d)\n",
 			   err, obj->id);
@@ -307,10 +244,6 @@ static int switchdev_port_obj_add_defer(struct net_device *dev,
  *	@obj: object to add
  *	@extack: netlink extended ack
  *
- *	Use a 2-phase prepare-commit transaction model to ensure
- *	system is not left in a partially updated state due to
- *	failure from driver/device.
- *
  *	rtnl_lock must be held and must not be in atomic section,
  *	in case SWITCHDEV_F_DEFER flag is not set.
  */
@@ -321,7 +254,8 @@ int switchdev_port_obj_add(struct net_device *dev,
 	if (obj->flags & SWITCHDEV_F_DEFER)
 		return switchdev_port_obj_add_defer(dev, obj);
 	ASSERT_RTNL();
-	return switchdev_port_obj_add_now(dev, obj, extack);
+	return switchdev_port_obj_notify(SWITCHDEV_PORT_OBJ_ADD,
+					 dev, obj, extack);
 }
 EXPORT_SYMBOL_GPL(switchdev_port_obj_add);
 
@@ -329,7 +263,7 @@ static int switchdev_port_obj_del_now(struct net_device *dev,
 				      const struct switchdev_obj *obj)
 {
 	return switchdev_port_obj_notify(SWITCHDEV_PORT_OBJ_DEL,
-					 dev, obj, NULL, NULL);
+					 dev, obj, NULL);
 }
 
 static void switchdev_port_obj_del_deferred(struct net_device *dev,
@@ -449,7 +383,6 @@ static int __switchdev_handle_port_obj_add(struct net_device *dev,
 			bool (*check_cb)(const struct net_device *dev),
 			int (*add_cb)(struct net_device *dev,
 				      const struct switchdev_obj *obj,
-				      struct switchdev_trans *trans,
 				      struct netlink_ext_ack *extack))
 {
 	struct netlink_ext_ack *extack;
@@ -460,8 +393,7 @@ static int __switchdev_handle_port_obj_add(struct net_device *dev,
 	extack = switchdev_notifier_info_to_extack(&port_obj_info->info);
 
 	if (check_cb(dev)) {
-		err = add_cb(dev, port_obj_info->obj, port_obj_info->trans,
-			     extack);
+		err = add_cb(dev, port_obj_info->obj, extack);
 		if (err != -EOPNOTSUPP)
 			port_obj_info->handled = true;
 		return err;
@@ -492,7 +424,6 @@ int switchdev_handle_port_obj_add(struct net_device *dev,
 			bool (*check_cb)(const struct net_device *dev),
 			int (*add_cb)(struct net_device *dev,
 				      const struct switchdev_obj *obj,
-				      struct switchdev_trans *trans,
 				      struct netlink_ext_ack *extack))
 {
 	int err;
@@ -563,14 +494,17 @@ static int __switchdev_handle_port_attr_set(struct net_device *dev,
 			bool (*check_cb)(const struct net_device *dev),
 			int (*set_cb)(struct net_device *dev,
 				      const struct switchdev_attr *attr,
-				      struct switchdev_trans *trans))
+				      struct netlink_ext_ack *extack))
 {
+	struct netlink_ext_ack *extack;
 	struct net_device *lower_dev;
 	struct list_head *iter;
 	int err = -EOPNOTSUPP;
 
+	extack = switchdev_notifier_info_to_extack(&port_attr_info->info);
+
 	if (check_cb(dev)) {
-		err = set_cb(dev, port_attr_info->attr, port_attr_info->trans);
+		err = set_cb(dev, port_attr_info->attr, extack);
 		if (err != -EOPNOTSUPP)
 			port_attr_info->handled = true;
 		return err;
@@ -601,7 +535,7 @@ int switchdev_handle_port_attr_set(struct net_device *dev,
 			bool (*check_cb)(const struct net_device *dev),
 			int (*set_cb)(struct net_device *dev,
 				      const struct switchdev_attr *attr,
-				      struct switchdev_trans *trans))
+				      struct netlink_ext_ack *extack))
 {
 	int err;