Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 778 insertions, 0 deletions

diff --git a/net/ncsi/ncsi-netlink.c b/net/ncsi/ncsi-netlink.c
new file mode 100644
index 000000000..d27f4eccc
--- /dev/null
+++ b/net/ncsi/ncsi-netlink.c
@@ -0,0 +1,778 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright Samuel Mendoza-Jonas, IBM Corporation 2018.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/if_arp.h>
+#include <linux/rtnetlink.h>
+#include <linux/etherdevice.h>
+#include <net/genetlink.h>
+#include <net/ncsi.h>
+#include <linux/skbuff.h>
+#include <net/sock.h>
+#include <uapi/linux/ncsi.h>
+
+#include "internal.h"
+#include "ncsi-pkt.h"
+#include "ncsi-netlink.h"
+
+static struct genl_family ncsi_genl_family;
+
+static const struct nla_policy ncsi_genl_policy[NCSI_ATTR_MAX + 1] = {
+	[NCSI_ATTR_IFINDEX] =		{ .type = NLA_U32 },
+	[NCSI_ATTR_PACKAGE_LIST] =	{ .type = NLA_NESTED },
+	[NCSI_ATTR_PACKAGE_ID] =	{ .type = NLA_U32 },
+	[NCSI_ATTR_CHANNEL_ID] =	{ .type = NLA_U32 },
+	[NCSI_ATTR_DATA] =		{ .type = NLA_BINARY, .len = 2048 },
+	[NCSI_ATTR_MULTI_FLAG] =	{ .type = NLA_FLAG },
+	[NCSI_ATTR_PACKAGE_MASK] =	{ .type = NLA_U32 },
+	[NCSI_ATTR_CHANNEL_MASK] =	{ .type = NLA_U32 },
+};
+
+static struct ncsi_dev_priv *ndp_from_ifindex(struct net *net, u32 ifindex)
+{
+	struct ncsi_dev_priv *ndp;
+	struct net_device *dev;
+	struct ncsi_dev *nd;
+	struct ncsi_dev;
+
+	if (!net)
+		return NULL;
+
+	dev = dev_get_by_index(net, ifindex);
+	if (!dev) {
+		pr_err("NCSI netlink: No device for ifindex %u\n", ifindex);
+		return NULL;
+	}
+
+	nd = ncsi_find_dev(dev);
+	ndp = nd ? TO_NCSI_DEV_PRIV(nd) : NULL;
+
+	dev_put(dev);
+	return ndp;
+}
+
+static int ncsi_write_channel_info(struct sk_buff *skb,
+				   struct ncsi_dev_priv *ndp,
+				   struct ncsi_channel *nc)
+{
+	struct ncsi_channel_vlan_filter *ncf;
+	struct ncsi_channel_mode *m;
+	struct nlattr *vid_nest;
+	int i;
+
+	nla_put_u32(skb, NCSI_CHANNEL_ATTR_ID, nc->id);
+	m = &nc->modes[NCSI_MODE_LINK];
+	nla_put_u32(skb, NCSI_CHANNEL_ATTR_LINK_STATE, m->data[2]);
+	if (nc->state == NCSI_CHANNEL_ACTIVE)
+		nla_put_flag(skb, NCSI_CHANNEL_ATTR_ACTIVE);
+	if (nc == nc->package->preferred_channel)
+		nla_put_flag(skb, NCSI_CHANNEL_ATTR_FORCED);
+
+	nla_put_u32(skb, NCSI_CHANNEL_ATTR_VERSION_MAJOR, nc->version.version);
+	nla_put_u32(skb, NCSI_CHANNEL_ATTR_VERSION_MINOR, nc->version.alpha2);
+	nla_put_string(skb, NCSI_CHANNEL_ATTR_VERSION_STR, nc->version.fw_name);
+
+	vid_nest = nla_nest_start_noflag(skb, NCSI_CHANNEL_ATTR_VLAN_LIST);
+	if (!vid_nest)
+		return -ENOMEM;
+	ncf = &nc->vlan_filter;
+	i = -1;
+	while ((i = find_next_bit((void *)&ncf->bitmap, ncf->n_vids,
+				  i + 1)) < ncf->n_vids) {
+		if (ncf->vids[i])
+			nla_put_u16(skb, NCSI_CHANNEL_ATTR_VLAN_ID,
+				    ncf->vids[i]);
+	}
+	nla_nest_end(skb, vid_nest);
+
+	return 0;
+}
+
+static int ncsi_write_package_info(struct sk_buff *skb,
+				   struct ncsi_dev_priv *ndp, unsigned int id)
+{
+	struct nlattr *pnest, *cnest, *nest;
+	struct ncsi_package *np;
+	struct ncsi_channel *nc;
+	bool found;
+	int rc;
+
+	if (id > ndp->package_num - 1) {
+		netdev_info(ndp->ndev.dev, "NCSI: No package with id %u\n", id);
+		return -ENODEV;
+	}
+
+	found = false;
+	NCSI_FOR_EACH_PACKAGE(ndp, np) {
+		if (np->id != id)
+			continue;
+		pnest = nla_nest_start_noflag(skb, NCSI_PKG_ATTR);
+		if (!pnest)
+			return -ENOMEM;
+		rc = nla_put_u32(skb, NCSI_PKG_ATTR_ID, np->id);
+		if (rc) {
+			nla_nest_cancel(skb, pnest);
+			return rc;
+		}
+		if ((0x1 << np->id) == ndp->package_whitelist)
+			nla_put_flag(skb, NCSI_PKG_ATTR_FORCED);
+		cnest = nla_nest_start_noflag(skb, NCSI_PKG_ATTR_CHANNEL_LIST);
+		if (!cnest) {
+			nla_nest_cancel(skb, pnest);
+			return -ENOMEM;
+		}
+		NCSI_FOR_EACH_CHANNEL(np, nc) {
+			nest = nla_nest_start_noflag(skb, NCSI_CHANNEL_ATTR);
+			if (!nest) {
+				nla_nest_cancel(skb, cnest);
+				nla_nest_cancel(skb, pnest);
+				return -ENOMEM;
+			}
+			rc = ncsi_write_channel_info(skb, ndp, nc);
+			if (rc) {
+				nla_nest_cancel(skb, nest);
+				nla_nest_cancel(skb, cnest);
+				nla_nest_cancel(skb, pnest);
+				return rc;
+			}
+			nla_nest_end(skb, nest);
+		}
+		nla_nest_end(skb, cnest);
+		nla_nest_end(skb, pnest);
+		found = true;
+	}
+
+	if (!found)
+		return -ENODEV;
+
+	return 0;
+}
+
+static int ncsi_pkg_info_nl(struct sk_buff *msg, struct genl_info *info)
+{
+	struct ncsi_dev_priv *ndp;
+	unsigned int package_id;
+	struct sk_buff *skb;
+	struct nlattr *attr;
+	void *hdr;
+	int rc;
+
+	if (!info || !info->attrs)
+		return -EINVAL;
+
+	if (!info->attrs[NCSI_ATTR_IFINDEX])
+		return -EINVAL;
+
+	if (!info->attrs[NCSI_ATTR_PACKAGE_ID])
+		return -EINVAL;
+
+	ndp = ndp_from_ifindex(genl_info_net(info),
+			       nla_get_u32(info->attrs[NCSI_ATTR_IFINDEX]));
+	if (!ndp)
+		return -ENODEV;
+
+	skb = genlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+	if (!skb)
+		return -ENOMEM;
+
+	hdr = genlmsg_put(skb, info->snd_portid, info->snd_seq,
+			  &ncsi_genl_family, 0, NCSI_CMD_PKG_INFO);
+	if (!hdr) {
+		kfree_skb(skb);
+		return -EMSGSIZE;
+	}
+
+	package_id = nla_get_u32(info->attrs[NCSI_ATTR_PACKAGE_ID]);
+
+	attr = nla_nest_start_noflag(skb, NCSI_ATTR_PACKAGE_LIST);
+	if (!attr) {
+		kfree_skb(skb);
+		return -EMSGSIZE;
+	}
+	rc = ncsi_write_package_info(skb, ndp, package_id);
+
+	if (rc) {
+		nla_nest_cancel(skb, attr);
+		goto err;
+	}
+
+	nla_nest_end(skb, attr);
+
+	genlmsg_end(skb, hdr);
+	return genlmsg_reply(skb, info);
+
+err:
+	kfree_skb(skb);
+	return rc;
+}
+
+static int ncsi_pkg_info_all_nl(struct sk_buff *skb,
+				struct netlink_callback *cb)
+{
+	struct nlattr *attrs[NCSI_ATTR_MAX + 1];
+	struct ncsi_package *np, *package;
+	struct ncsi_dev_priv *ndp;
+	unsigned int package_id;
+	struct nlattr *attr;
+	void *hdr;
+	int rc;
+
+	rc = genlmsg_parse_deprecated(cb->nlh, &ncsi_genl_family, attrs, NCSI_ATTR_MAX,
+				      ncsi_genl_policy, NULL);
+	if (rc)
+		return rc;
+
+	if (!attrs[NCSI_ATTR_IFINDEX])
+		return -EINVAL;
+
+	ndp = ndp_from_ifindex(get_net(sock_net(skb->sk)),
+			       nla_get_u32(attrs[NCSI_ATTR_IFINDEX]));
+
+	if (!ndp)
+		return -ENODEV;
+
+	package_id = cb->args[0];
+	package = NULL;
+	NCSI_FOR_EACH_PACKAGE(ndp, np)
+		if (np->id == package_id)
+			package = np;
+
+	if (!package)
+		return 0; /* done */
+
+	hdr = genlmsg_put(skb, NETLINK_CB(cb->skb).portid, cb->nlh->nlmsg_seq,
+			  &ncsi_genl_family, NLM_F_MULTI,  NCSI_CMD_PKG_INFO);
+	if (!hdr) {
+		rc = -EMSGSIZE;
+		goto err;
+	}
+
+	attr = nla_nest_start_noflag(skb, NCSI_ATTR_PACKAGE_LIST);
+	if (!attr) {
+		rc = -EMSGSIZE;
+		goto err;
+	}
+	rc = ncsi_write_package_info(skb, ndp, package->id);
+	if (rc) {
+		nla_nest_cancel(skb, attr);
+		goto err;
+	}
+
+	nla_nest_end(skb, attr);
+	genlmsg_end(skb, hdr);
+
+	cb->args[0] = package_id + 1;
+
+	return skb->len;
+err:
+	genlmsg_cancel(skb, hdr);
+	return rc;
+}
+
+static int ncsi_set_interface_nl(struct sk_buff *msg, struct genl_info *info)
+{
+	struct ncsi_package *np, *package;
+	struct ncsi_channel *nc, *channel;
+	u32 package_id, channel_id;
+	struct ncsi_dev_priv *ndp;
+	unsigned long flags;
+
+	if (!info || !info->attrs)
+		return -EINVAL;
+
+	if (!info->attrs[NCSI_ATTR_IFINDEX])
+		return -EINVAL;
+
+	if (!info->attrs[NCSI_ATTR_PACKAGE_ID])
+		return -EINVAL;
+
+	ndp = ndp_from_ifindex(get_net(sock_net(msg->sk)),
+			       nla_get_u32(info->attrs[NCSI_ATTR_IFINDEX]));
+	if (!ndp)
+		return -ENODEV;
+
+	package_id = nla_get_u32(info->attrs[NCSI_ATTR_PACKAGE_ID]);
+	package = NULL;
+
+	NCSI_FOR_EACH_PACKAGE(ndp, np)
+		if (np->id == package_id)
+			package = np;
+	if (!package) {
+		/* The user has set a package that does not exist */
+		return -ERANGE;
+	}
+
+	channel = NULL;
+	if (info->attrs[NCSI_ATTR_CHANNEL_ID]) {
+		channel_id = nla_get_u32(info->attrs[NCSI_ATTR_CHANNEL_ID]);
+		NCSI_FOR_EACH_CHANNEL(package, nc)
+			if (nc->id == channel_id) {
+				channel = nc;
+				break;
+			}
+		if (!channel) {
+			netdev_info(ndp->ndev.dev,
+				    "NCSI: Channel %u does not exist!\n",
+				    channel_id);
+			return -ERANGE;
+		}
+	}
+
+	spin_lock_irqsave(&ndp->lock, flags);
+	ndp->package_whitelist = 0x1 << package->id;
+	ndp->multi_package = false;
+	spin_unlock_irqrestore(&ndp->lock, flags);
+
+	spin_lock_irqsave(&package->lock, flags);
+	package->multi_channel = false;
+	if (channel) {
+		package->channel_whitelist = 0x1 << channel->id;
+		package->preferred_channel = channel;
+	} else {
+		/* Allow any channel */
+		package->channel_whitelist = UINT_MAX;
+		package->preferred_channel = NULL;
+	}
+	spin_unlock_irqrestore(&package->lock, flags);
+
+	if (channel)
+		netdev_info(ndp->ndev.dev,
+			    "Set package 0x%x, channel 0x%x as preferred\n",
+			    package_id, channel_id);
+	else
+		netdev_info(ndp->ndev.dev, "Set package 0x%x as preferred\n",
+			    package_id);
+
+	/* Update channel configuration */
+	if (!(ndp->flags & NCSI_DEV_RESET))
+		ncsi_reset_dev(&ndp->ndev);
+
+	return 0;
+}
+
+static int ncsi_clear_interface_nl(struct sk_buff *msg, struct genl_info *info)
+{
+	struct ncsi_dev_priv *ndp;
+	struct ncsi_package *np;
+	unsigned long flags;
+
+	if (!info || !info->attrs)
+		return -EINVAL;
+
+	if (!info->attrs[NCSI_ATTR_IFINDEX])
+		return -EINVAL;
+
+	ndp = ndp_from_ifindex(get_net(sock_net(msg->sk)),
+			       nla_get_u32(info->attrs[NCSI_ATTR_IFINDEX]));
+	if (!ndp)
+		return -ENODEV;
+
+	/* Reset any whitelists and disable multi mode */
+	spin_lock_irqsave(&ndp->lock, flags);
+	ndp->package_whitelist = UINT_MAX;
+	ndp->multi_package = false;
+	spin_unlock_irqrestore(&ndp->lock, flags);
+
+	NCSI_FOR_EACH_PACKAGE(ndp, np) {
+		spin_lock_irqsave(&np->lock, flags);
+		np->multi_channel = false;
+		np->channel_whitelist = UINT_MAX;
+		np->preferred_channel = NULL;
+		spin_unlock_irqrestore(&np->lock, flags);
+	}
+	netdev_info(ndp->ndev.dev, "NCSI: Cleared preferred package/channel\n");
+
+	/* Update channel configuration */
+	if (!(ndp->flags & NCSI_DEV_RESET))
+		ncsi_reset_dev(&ndp->ndev);
+
+	return 0;
+}
+
+static int ncsi_send_cmd_nl(struct sk_buff *msg, struct genl_info *info)
+{
+	struct ncsi_dev_priv *ndp;
+	struct ncsi_pkt_hdr *hdr;
+	struct ncsi_cmd_arg nca;
+	unsigned char *data;
+	u32 package_id;
+	u32 channel_id;
+	int len, ret;
+
+	if (!info || !info->attrs) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	if (!info->attrs[NCSI_ATTR_IFINDEX]) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	if (!info->attrs[NCSI_ATTR_PACKAGE_ID]) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	if (!info->attrs[NCSI_ATTR_CHANNEL_ID]) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	if (!info->attrs[NCSI_ATTR_DATA]) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	ndp = ndp_from_ifindex(get_net(sock_net(msg->sk)),
+			       nla_get_u32(info->attrs[NCSI_ATTR_IFINDEX]));
+	if (!ndp) {
+		ret = -ENODEV;
+		goto out;
+	}
+
+	package_id = nla_get_u32(info->attrs[NCSI_ATTR_PACKAGE_ID]);
+	channel_id = nla_get_u32(info->attrs[NCSI_ATTR_CHANNEL_ID]);
+
+	if (package_id >= NCSI_MAX_PACKAGE || channel_id >= NCSI_MAX_CHANNEL) {
+		ret = -ERANGE;
+		goto out_netlink;
+	}
+
+	len = nla_len(info->attrs[NCSI_ATTR_DATA]);
+	if (len < sizeof(struct ncsi_pkt_hdr)) {
+		netdev_info(ndp->ndev.dev, "NCSI: no command to send %u\n",
+			    package_id);
+		ret = -EINVAL;
+		goto out_netlink;
+	} else {
+		data = (unsigned char *)nla_data(info->attrs[NCSI_ATTR_DATA]);
+	}
+
+	hdr = (struct ncsi_pkt_hdr *)data;
+
+	nca.ndp = ndp;
+	nca.package = (unsigned char)package_id;
+	nca.channel = (unsigned char)channel_id;
+	nca.type = hdr->type;
+	nca.req_flags = NCSI_REQ_FLAG_NETLINK_DRIVEN;
+	nca.info = info;
+	nca.payload = ntohs(hdr->length);
+	nca.data = data + sizeof(*hdr);
+
+	ret = ncsi_xmit_cmd(&nca);
+out_netlink:
+	if (ret != 0) {
+		netdev_err(ndp->ndev.dev,
+			   "NCSI: Error %d sending command\n",
+			   ret);
+		ncsi_send_netlink_err(ndp->ndev.dev,
+				      info->snd_seq,
+				      info->snd_portid,
+				      info->nlhdr,
+				      ret);
+	}
+out:
+	return ret;
+}
+
+int ncsi_send_netlink_rsp(struct ncsi_request *nr,
+			  struct ncsi_package *np,
+			  struct ncsi_channel *nc)
+{
+	struct sk_buff *skb;
+	struct net *net;
+	void *hdr;
+	int rc;
+
+	net = dev_net(nr->rsp->dev);
+
+	skb = genlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
+	if (!skb)
+		return -ENOMEM;
+
+	hdr = genlmsg_put(skb, nr->snd_portid, nr->snd_seq,
+			  &ncsi_genl_family, 0, NCSI_CMD_SEND_CMD);
+	if (!hdr) {
+		kfree_skb(skb);
+		return -EMSGSIZE;
+	}
+
+	nla_put_u32(skb, NCSI_ATTR_IFINDEX, nr->rsp->dev->ifindex);
+	if (np)
+		nla_put_u32(skb, NCSI_ATTR_PACKAGE_ID, np->id);
+	if (nc)
+		nla_put_u32(skb, NCSI_ATTR_CHANNEL_ID, nc->id);
+	else
+		nla_put_u32(skb, NCSI_ATTR_CHANNEL_ID, NCSI_RESERVED_CHANNEL);
+
+	rc = nla_put(skb, NCSI_ATTR_DATA, nr->rsp->len, (void *)nr->rsp->data);
+	if (rc)
+		goto err;
+
+	genlmsg_end(skb, hdr);
+	return genlmsg_unicast(net, skb, nr->snd_portid);
+
+err:
+	kfree_skb(skb);
+	return rc;
+}
+
+int ncsi_send_netlink_timeout(struct ncsi_request *nr,
+			      struct ncsi_package *np,
+			      struct ncsi_channel *nc)
+{
+	struct sk_buff *skb;
+	struct net *net;
+	void *hdr;
+
+	skb = genlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
+	if (!skb)
+		return -ENOMEM;
+
+	hdr = genlmsg_put(skb, nr->snd_portid, nr->snd_seq,
+			  &ncsi_genl_family, 0, NCSI_CMD_SEND_CMD);
+	if (!hdr) {
+		kfree_skb(skb);
+		return -EMSGSIZE;
+	}
+
+	net = dev_net(nr->cmd->dev);
+
+	nla_put_u32(skb, NCSI_ATTR_IFINDEX, nr->cmd->dev->ifindex);
+
+	if (np)
+		nla_put_u32(skb, NCSI_ATTR_PACKAGE_ID, np->id);
+	else
+		nla_put_u32(skb, NCSI_ATTR_PACKAGE_ID,
+			    NCSI_PACKAGE_INDEX((((struct ncsi_pkt_hdr *)
+						 nr->cmd->data)->channel)));
+
+	if (nc)
+		nla_put_u32(skb, NCSI_ATTR_CHANNEL_ID, nc->id);
+	else
+		nla_put_u32(skb, NCSI_ATTR_CHANNEL_ID, NCSI_RESERVED_CHANNEL);
+
+	genlmsg_end(skb, hdr);
+	return genlmsg_unicast(net, skb, nr->snd_portid);
+}
+
+int ncsi_send_netlink_err(struct net_device *dev,
+			  u32 snd_seq,
+			  u32 snd_portid,
+			  struct nlmsghdr *nlhdr,
+			  int err)
+{
+	struct nlmsghdr *nlh;
+	struct nlmsgerr *nle;
+	struct sk_buff *skb;
+	struct net *net;
+
+	skb = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_ATOMIC);
+	if (!skb)
+		return -ENOMEM;
+
+	net = dev_net(dev);
+
+	nlh = nlmsg_put(skb, snd_portid, snd_seq,
+			NLMSG_ERROR, sizeof(*nle), 0);
+	nle = (struct nlmsgerr *)nlmsg_data(nlh);
+	nle->error = err;
+	memcpy(&nle->msg, nlhdr, sizeof(*nlh));
+
+	nlmsg_end(skb, nlh);
+
+	return nlmsg_unicast(net->genl_sock, skb, snd_portid);
+}
+
+static int ncsi_set_package_mask_nl(struct sk_buff *msg,
+				    struct genl_info *info)
+{
+	struct ncsi_dev_priv *ndp;
+	unsigned long flags;
+	int rc;
+
+	if (!info || !info->attrs)
+		return -EINVAL;
+
+	if (!info->attrs[NCSI_ATTR_IFINDEX])
+		return -EINVAL;
+
+	if (!info->attrs[NCSI_ATTR_PACKAGE_MASK])
+		return -EINVAL;
+
+	ndp = ndp_from_ifindex(get_net(sock_net(msg->sk)),
+			       nla_get_u32(info->attrs[NCSI_ATTR_IFINDEX]));
+	if (!ndp)
+		return -ENODEV;
+
+	spin_lock_irqsave(&ndp->lock, flags);
+	if (nla_get_flag(info->attrs[NCSI_ATTR_MULTI_FLAG])) {
+		if (ndp->flags & NCSI_DEV_HWA) {
+			ndp->multi_package = true;
+			rc = 0;
+		} else {
+			netdev_err(ndp->ndev.dev,
+				   "NCSI: Can't use multiple packages without HWA\n");
+			rc = -EPERM;
+		}
+	} else {
+		ndp->multi_package = false;
+		rc = 0;
+	}
+
+	if (!rc)
+		ndp->package_whitelist =
+			nla_get_u32(info->attrs[NCSI_ATTR_PACKAGE_MASK]);
+	spin_unlock_irqrestore(&ndp->lock, flags);
+
+	if (!rc) {
+		/* Update channel configuration */
+		if (!(ndp->flags & NCSI_DEV_RESET))
+			ncsi_reset_dev(&ndp->ndev);
+	}
+
+	return rc;
+}
+
+static int ncsi_set_channel_mask_nl(struct sk_buff *msg,
+				    struct genl_info *info)
+{
+	struct ncsi_package *np, *package;
+	struct ncsi_channel *nc, *channel;
+	u32 package_id, channel_id;
+	struct ncsi_dev_priv *ndp;
+	unsigned long flags;
+
+	if (!info || !info->attrs)
+		return -EINVAL;
+
+	if (!info->attrs[NCSI_ATTR_IFINDEX])
+		return -EINVAL;
+
+	if (!info->attrs[NCSI_ATTR_PACKAGE_ID])
+		return -EINVAL;
+
+	if (!info->attrs[NCSI_ATTR_CHANNEL_MASK])
+		return -EINVAL;
+
+	ndp = ndp_from_ifindex(get_net(sock_net(msg->sk)),
+			       nla_get_u32(info->attrs[NCSI_ATTR_IFINDEX]));
+	if (!ndp)
+		return -ENODEV;
+
+	package_id = nla_get_u32(info->attrs[NCSI_ATTR_PACKAGE_ID]);
+	package = NULL;
+	NCSI_FOR_EACH_PACKAGE(ndp, np)
+		if (np->id == package_id) {
+			package = np;
+			break;
+		}
+	if (!package)
+		return -ERANGE;
+
+	spin_lock_irqsave(&package->lock, flags);
+
+	channel = NULL;
+	if (info->attrs[NCSI_ATTR_CHANNEL_ID]) {
+		channel_id = nla_get_u32(info->attrs[NCSI_ATTR_CHANNEL_ID]);
+		NCSI_FOR_EACH_CHANNEL(np, nc)
+			if (nc->id == channel_id) {
+				channel = nc;
+				break;
+			}
+		if (!channel) {
+			spin_unlock_irqrestore(&package->lock, flags);
+			return -ERANGE;
+		}
+		netdev_dbg(ndp->ndev.dev,
+			   "NCSI: Channel %u set as preferred channel\n",
+			   channel->id);
+	}
+
+	package->channel_whitelist =
+		nla_get_u32(info->attrs[NCSI_ATTR_CHANNEL_MASK]);
+	if (package->channel_whitelist == 0)
+		netdev_dbg(ndp->ndev.dev,
+			   "NCSI: Package %u set to all channels disabled\n",
+			   package->id);
+
+	package->preferred_channel = channel;
+
+	if (nla_get_flag(info->attrs[NCSI_ATTR_MULTI_FLAG])) {
+		package->multi_channel = true;
+		netdev_info(ndp->ndev.dev,
+			    "NCSI: Multi-channel enabled on package %u\n",
+			    package_id);
+	} else {
+		package->multi_channel = false;
+	}
+
+	spin_unlock_irqrestore(&package->lock, flags);
+
+	/* Update channel configuration */
+	if (!(ndp->flags & NCSI_DEV_RESET))
+		ncsi_reset_dev(&ndp->ndev);
+
+	return 0;
+}
+
+static const struct genl_small_ops ncsi_ops[] = {
+	{
+		.cmd = NCSI_CMD_PKG_INFO,
+		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+		.doit = ncsi_pkg_info_nl,
+		.dumpit = ncsi_pkg_info_all_nl,
+		.flags = 0,
+	},
+	{
+		.cmd = NCSI_CMD_SET_INTERFACE,
+		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+		.doit = ncsi_set_interface_nl,
+		.flags = GENL_ADMIN_PERM,
+	},
+	{
+		.cmd = NCSI_CMD_CLEAR_INTERFACE,
+		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+		.doit = ncsi_clear_interface_nl,
+		.flags = GENL_ADMIN_PERM,
+	},
+	{
+		.cmd = NCSI_CMD_SEND_CMD,
+		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+		.doit = ncsi_send_cmd_nl,
+		.flags = GENL_ADMIN_PERM,
+	},
+	{
+		.cmd = NCSI_CMD_SET_PACKAGE_MASK,
+		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+		.doit = ncsi_set_package_mask_nl,
+		.flags = GENL_ADMIN_PERM,
+	},
+	{
+		.cmd = NCSI_CMD_SET_CHANNEL_MASK,
+		.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
+		.doit = ncsi_set_channel_mask_nl,
+		.flags = GENL_ADMIN_PERM,
+	},
+};
+
+static struct genl_family ncsi_genl_family __ro_after_init = {
+	.name = "NCSI",
+	.version = 0,
+	.maxattr = NCSI_ATTR_MAX,
+	.policy = ncsi_genl_policy,
+	.module = THIS_MODULE,
+	.small_ops = ncsi_ops,
+	.n_small_ops = ARRAY_SIZE(ncsi_ops),
+	.resv_start_op = NCSI_CMD_SET_CHANNEL_MASK + 1,
+};
+
+static int __init ncsi_init_netlink(void)
+{
+	return genl_register_family(&ncsi_genl_family);
+}
+subsys_initcall(ncsi_init_netlink);