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, 365 insertions, 0 deletions

diff --git a/drivers/soc/qcom/wcnss_ctrl.c b/drivers/soc/qcom/wcnss_ctrl.c
new file mode 100644
index 000000000..2a06d631e
--- /dev/null
+++ b/drivers/soc/qcom/wcnss_ctrl.c
@@ -0,0 +1,365 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2016, Linaro Ltd.
+ * Copyright (c) 2015, Sony Mobile Communications Inc.
+ */
+#include <linux/firmware.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/rpmsg.h>
+#include <linux/soc/qcom/wcnss_ctrl.h>
+
+#define WCNSS_REQUEST_TIMEOUT	(5 * HZ)
+#define WCNSS_CBC_TIMEOUT	(10 * HZ)
+
+#define WCNSS_ACK_DONE_BOOTING	1
+#define WCNSS_ACK_COLD_BOOTING	2
+
+#define NV_FRAGMENT_SIZE	3072
+#define NVBIN_FILE		"wlan/prima/WCNSS_qcom_wlan_nv.bin"
+
+/**
+ * struct wcnss_ctrl - driver context
+ * @dev:	device handle
+ * @channel:	SMD channel handle
+ * @ack:	completion for outstanding requests
+ * @cbc:	completion for cbc complete indication
+ * @ack_status:	status of the outstanding request
+ * @probe_work: worker for uploading nv binary
+ */
+struct wcnss_ctrl {
+	struct device *dev;
+	struct rpmsg_endpoint *channel;
+
+	struct completion ack;
+	struct completion cbc;
+	int ack_status;
+
+	struct work_struct probe_work;
+};
+
+/* message types */
+enum {
+	WCNSS_VERSION_REQ = 0x01000000,
+	WCNSS_VERSION_RESP,
+	WCNSS_DOWNLOAD_NV_REQ,
+	WCNSS_DOWNLOAD_NV_RESP,
+	WCNSS_UPLOAD_CAL_REQ,
+	WCNSS_UPLOAD_CAL_RESP,
+	WCNSS_DOWNLOAD_CAL_REQ,
+	WCNSS_DOWNLOAD_CAL_RESP,
+	WCNSS_VBAT_LEVEL_IND,
+	WCNSS_BUILD_VERSION_REQ,
+	WCNSS_BUILD_VERSION_RESP,
+	WCNSS_PM_CONFIG_REQ,
+	WCNSS_CBC_COMPLETE_IND,
+};
+
+/**
+ * struct wcnss_msg_hdr - common packet header for requests and responses
+ * @type:	packet message type
+ * @len:	total length of the packet, including this header
+ */
+struct wcnss_msg_hdr {
+	u32 type;
+	u32 len;
+} __packed;
+
+/*
+ * struct wcnss_version_resp - version request response
+ */
+struct wcnss_version_resp {
+	struct wcnss_msg_hdr hdr;
+	u8 major;
+	u8 minor;
+	u8 version;
+	u8 revision;
+} __packed;
+
+/**
+ * struct wcnss_download_nv_req - firmware fragment request
+ * @hdr:	common packet wcnss_msg_hdr header
+ * @seq:	sequence number of this fragment
+ * @last:	boolean indicator of this being the last fragment of the binary
+ * @frag_size:	length of this fragment
+ * @fragment:	fragment data
+ */
+struct wcnss_download_nv_req {
+	struct wcnss_msg_hdr hdr;
+	u16 seq;
+	u16 last;
+	u32 frag_size;
+	u8 fragment[];
+} __packed;
+
+/**
+ * struct wcnss_download_nv_resp - firmware download response
+ * @hdr:	common packet wcnss_msg_hdr header
+ * @status:	boolean to indicate success of the download
+ */
+struct wcnss_download_nv_resp {
+	struct wcnss_msg_hdr hdr;
+	u8 status;
+} __packed;
+
+/**
+ * wcnss_ctrl_smd_callback() - handler from SMD responses
+ * @rpdev:	remote processor message device pointer
+ * @data:	pointer to the incoming data packet
+ * @count:	size of the incoming data packet
+ * @priv:	unused
+ * @addr:	unused
+ *
+ * Handles any incoming packets from the remote WCNSS_CTRL service.
+ */
+static int wcnss_ctrl_smd_callback(struct rpmsg_device *rpdev,
+				   void *data,
+				   int count,
+				   void *priv,
+				   u32 addr)
+{
+	struct wcnss_ctrl *wcnss = dev_get_drvdata(&rpdev->dev);
+	const struct wcnss_download_nv_resp *nvresp;
+	const struct wcnss_version_resp *version;
+	const struct wcnss_msg_hdr *hdr = data;
+
+	switch (hdr->type) {
+	case WCNSS_VERSION_RESP:
+		if (count != sizeof(*version)) {
+			dev_err(wcnss->dev,
+				"invalid size of version response\n");
+			break;
+		}
+
+		version = data;
+		dev_info(wcnss->dev, "WCNSS Version %d.%d %d.%d\n",
+			 version->major, version->minor,
+			 version->version, version->revision);
+
+		complete(&wcnss->ack);
+		break;
+	case WCNSS_DOWNLOAD_NV_RESP:
+		if (count != sizeof(*nvresp)) {
+			dev_err(wcnss->dev,
+				"invalid size of download response\n");
+			break;
+		}
+
+		nvresp = data;
+		wcnss->ack_status = nvresp->status;
+		complete(&wcnss->ack);
+		break;
+	case WCNSS_CBC_COMPLETE_IND:
+		dev_dbg(wcnss->dev, "cold boot complete\n");
+		complete(&wcnss->cbc);
+		break;
+	default:
+		dev_info(wcnss->dev, "unknown message type %d\n", hdr->type);
+		break;
+	}
+
+	return 0;
+}
+
+/**
+ * wcnss_request_version() - send a version request to WCNSS
+ * @wcnss:	wcnss ctrl driver context
+ */
+static int wcnss_request_version(struct wcnss_ctrl *wcnss)
+{
+	struct wcnss_msg_hdr msg;
+	int ret;
+
+	msg.type = WCNSS_VERSION_REQ;
+	msg.len = sizeof(msg);
+	ret = rpmsg_send(wcnss->channel, &msg, sizeof(msg));
+	if (ret < 0)
+		return ret;
+
+	ret = wait_for_completion_timeout(&wcnss->ack, WCNSS_CBC_TIMEOUT);
+	if (!ret) {
+		dev_err(wcnss->dev, "timeout waiting for version response\n");
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+/**
+ * wcnss_download_nv() - send nv binary to WCNSS
+ * @wcnss:	wcnss_ctrl state handle
+ * @expect_cbc:	indicator to caller that an cbc event is expected
+ *
+ * Returns 0 on success. Negative errno on failure.
+ */
+static int wcnss_download_nv(struct wcnss_ctrl *wcnss, bool *expect_cbc)
+{
+	struct wcnss_download_nv_req *req;
+	const struct firmware *fw;
+	struct device *dev = wcnss->dev;
+	const char *nvbin = NVBIN_FILE;
+	const void *data;
+	ssize_t left;
+	int ret;
+
+	req = kzalloc(sizeof(*req) + NV_FRAGMENT_SIZE, GFP_KERNEL);
+	if (!req)
+		return -ENOMEM;
+
+	ret = of_property_read_string(dev->of_node, "firmware-name", &nvbin);
+	if (ret < 0 && ret != -EINVAL)
+		goto free_req;
+
+	ret = request_firmware(&fw, nvbin, dev);
+	if (ret < 0) {
+		dev_err(dev, "Failed to load nv file %s: %d\n", nvbin, ret);
+		goto free_req;
+	}
+
+	data = fw->data;
+	left = fw->size;
+
+	req->hdr.type = WCNSS_DOWNLOAD_NV_REQ;
+	req->hdr.len = sizeof(*req) + NV_FRAGMENT_SIZE;
+
+	req->last = 0;
+	req->frag_size = NV_FRAGMENT_SIZE;
+
+	req->seq = 0;
+	do {
+		if (left <= NV_FRAGMENT_SIZE) {
+			req->last = 1;
+			req->frag_size = left;
+			req->hdr.len = sizeof(*req) + left;
+		}
+
+		memcpy(req->fragment, data, req->frag_size);
+
+		ret = rpmsg_send(wcnss->channel, req, req->hdr.len);
+		if (ret < 0) {
+			dev_err(dev, "failed to send smd packet\n");
+			goto release_fw;
+		}
+
+		/* Increment for next fragment */
+		req->seq++;
+
+		data += NV_FRAGMENT_SIZE;
+		left -= NV_FRAGMENT_SIZE;
+	} while (left > 0);
+
+	ret = wait_for_completion_timeout(&wcnss->ack, WCNSS_REQUEST_TIMEOUT);
+	if (!ret) {
+		dev_err(dev, "timeout waiting for nv upload ack\n");
+		ret = -ETIMEDOUT;
+	} else {
+		*expect_cbc = wcnss->ack_status == WCNSS_ACK_COLD_BOOTING;
+		ret = 0;
+	}
+
+release_fw:
+	release_firmware(fw);
+free_req:
+	kfree(req);
+
+	return ret;
+}
+
+/**
+ * qcom_wcnss_open_channel() - open additional SMD channel to WCNSS
+ * @wcnss:	wcnss handle, retrieved from drvdata
+ * @name:	SMD channel name
+ * @cb:		callback to handle incoming data on the channel
+ * @priv:	private data for use in the call-back
+ */
+struct rpmsg_endpoint *qcom_wcnss_open_channel(void *wcnss, const char *name, rpmsg_rx_cb_t cb, void *priv)
+{
+	struct rpmsg_channel_info chinfo;
+	struct wcnss_ctrl *_wcnss = wcnss;
+
+	strscpy(chinfo.name, name, sizeof(chinfo.name));
+	chinfo.src = RPMSG_ADDR_ANY;
+	chinfo.dst = RPMSG_ADDR_ANY;
+
+	return rpmsg_create_ept(_wcnss->channel->rpdev, cb, priv, chinfo);
+}
+EXPORT_SYMBOL(qcom_wcnss_open_channel);
+
+static void wcnss_async_probe(struct work_struct *work)
+{
+	struct wcnss_ctrl *wcnss = container_of(work, struct wcnss_ctrl, probe_work);
+	bool expect_cbc;
+	int ret;
+
+	ret = wcnss_request_version(wcnss);
+	if (ret < 0)
+		return;
+
+	ret = wcnss_download_nv(wcnss, &expect_cbc);
+	if (ret < 0)
+		return;
+
+	/* Wait for pending cold boot completion if indicated by the nv downloader */
+	if (expect_cbc) {
+		ret = wait_for_completion_timeout(&wcnss->cbc, WCNSS_REQUEST_TIMEOUT);
+		if (!ret)
+			dev_err(wcnss->dev, "expected cold boot completion\n");
+	}
+
+	of_platform_populate(wcnss->dev->of_node, NULL, NULL, wcnss->dev);
+}
+
+static int wcnss_ctrl_probe(struct rpmsg_device *rpdev)
+{
+	struct wcnss_ctrl *wcnss;
+
+	wcnss = devm_kzalloc(&rpdev->dev, sizeof(*wcnss), GFP_KERNEL);
+	if (!wcnss)
+		return -ENOMEM;
+
+	wcnss->dev = &rpdev->dev;
+	wcnss->channel = rpdev->ept;
+
+	init_completion(&wcnss->ack);
+	init_completion(&wcnss->cbc);
+	INIT_WORK(&wcnss->probe_work, wcnss_async_probe);
+
+	dev_set_drvdata(&rpdev->dev, wcnss);
+
+	schedule_work(&wcnss->probe_work);
+
+	return 0;
+}
+
+static void wcnss_ctrl_remove(struct rpmsg_device *rpdev)
+{
+	struct wcnss_ctrl *wcnss = dev_get_drvdata(&rpdev->dev);
+
+	cancel_work_sync(&wcnss->probe_work);
+	of_platform_depopulate(&rpdev->dev);
+}
+
+static const struct of_device_id wcnss_ctrl_of_match[] = {
+	{ .compatible = "qcom,wcnss", },
+	{}
+};
+MODULE_DEVICE_TABLE(of, wcnss_ctrl_of_match);
+
+static struct rpmsg_driver wcnss_ctrl_driver = {
+	.probe = wcnss_ctrl_probe,
+	.remove = wcnss_ctrl_remove,
+	.callback = wcnss_ctrl_smd_callback,
+	.drv  = {
+		.name  = "qcom_wcnss_ctrl",
+		.owner = THIS_MODULE,
+		.of_match_table = wcnss_ctrl_of_match,
+	},
+};
+
+module_rpmsg_driver(wcnss_ctrl_driver);
+
+MODULE_DESCRIPTION("Qualcomm WCNSS control driver");
+MODULE_LICENSE("GPL v2");