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, 311 insertions, 0 deletions

diff --git a/drivers/crypto/chelsio/chcr_core.c b/drivers/crypto/chelsio/chcr_core.c
new file mode 100644
index 000000000..39c70e625
--- /dev/null
+++ b/drivers/crypto/chelsio/chcr_core.c
@@ -0,0 +1,311 @@
+/*
+ * This file is part of the Chelsio T4/T5/T6 Ethernet driver for Linux.
+ *
+ * Copyright (C) 2011-2016 Chelsio Communications.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation.
+ *
+ * Written and Maintained by:
+ * Manoj Malviya (manojmalviya@chelsio.com)
+ * Atul Gupta (atul.gupta@chelsio.com)
+ * Jitendra Lulla (jlulla@chelsio.com)
+ * Yeshaswi M R Gowda (yeshaswi@chelsio.com)
+ * Harsh Jain (harsh@chelsio.com)
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/skbuff.h>
+
+#include <crypto/aes.h>
+#include <crypto/hash.h>
+
+#include "t4_msg.h"
+#include "chcr_core.h"
+#include "cxgb4_uld.h"
+
+static struct chcr_driver_data drv_data;
+
+typedef int (*chcr_handler_func)(struct adapter *adap, unsigned char *input);
+static int cpl_fw6_pld_handler(struct adapter *adap, unsigned char *input);
+static void *chcr_uld_add(const struct cxgb4_lld_info *lld);
+static int chcr_uld_state_change(void *handle, enum cxgb4_state state);
+
+static chcr_handler_func work_handlers[NUM_CPL_CMDS] = {
+	[CPL_FW6_PLD] = cpl_fw6_pld_handler,
+};
+
+static struct cxgb4_uld_info chcr_uld_info = {
+	.name = DRV_MODULE_NAME,
+	.nrxq = MAX_ULD_QSETS,
+	/* Max ntxq will be derived from fw config file*/
+	.rxq_size = 1024,
+	.add = chcr_uld_add,
+	.state_change = chcr_uld_state_change,
+	.rx_handler = chcr_uld_rx_handler,
+};
+
+static void detach_work_fn(struct work_struct *work)
+{
+	struct chcr_dev *dev;
+
+	dev = container_of(work, struct chcr_dev, detach_work.work);
+
+	if (atomic_read(&dev->inflight)) {
+		dev->wqretry--;
+		if (dev->wqretry) {
+			pr_debug("Request Inflight Count %d\n",
+				atomic_read(&dev->inflight));
+
+			schedule_delayed_work(&dev->detach_work, WQ_DETACH_TM);
+		} else {
+			WARN(1, "CHCR:%d request Still Pending\n",
+				atomic_read(&dev->inflight));
+			complete(&dev->detach_comp);
+		}
+	} else {
+		complete(&dev->detach_comp);
+	}
+}
+
+struct uld_ctx *assign_chcr_device(void)
+{
+	struct uld_ctx *u_ctx = NULL;
+
+	/*
+	 * When multiple devices are present in system select
+	 * device in round-robin fashion for crypto operations
+	 * Although One session must use the same device to
+	 * maintain request-response ordering.
+	 */
+	mutex_lock(&drv_data.drv_mutex);
+	if (!list_empty(&drv_data.act_dev)) {
+		u_ctx = drv_data.last_dev;
+		if (list_is_last(&drv_data.last_dev->entry, &drv_data.act_dev))
+			drv_data.last_dev = list_first_entry(&drv_data.act_dev,
+						  struct uld_ctx, entry);
+		else
+			drv_data.last_dev =
+				list_next_entry(drv_data.last_dev, entry);
+	}
+	mutex_unlock(&drv_data.drv_mutex);
+	return u_ctx;
+}
+
+static void chcr_dev_add(struct uld_ctx *u_ctx)
+{
+	struct chcr_dev *dev;
+
+	dev = &u_ctx->dev;
+	dev->state = CHCR_ATTACH;
+	atomic_set(&dev->inflight, 0);
+	mutex_lock(&drv_data.drv_mutex);
+	list_move(&u_ctx->entry, &drv_data.act_dev);
+	if (!drv_data.last_dev)
+		drv_data.last_dev = u_ctx;
+	mutex_unlock(&drv_data.drv_mutex);
+}
+
+static void chcr_dev_init(struct uld_ctx *u_ctx)
+{
+	struct chcr_dev *dev;
+
+	dev = &u_ctx->dev;
+	spin_lock_init(&dev->lock_chcr_dev);
+	INIT_DELAYED_WORK(&dev->detach_work, detach_work_fn);
+	init_completion(&dev->detach_comp);
+	dev->state = CHCR_INIT;
+	dev->wqretry = WQ_RETRY;
+	atomic_inc(&drv_data.dev_count);
+	atomic_set(&dev->inflight, 0);
+	mutex_lock(&drv_data.drv_mutex);
+	list_add_tail(&u_ctx->entry, &drv_data.inact_dev);
+	mutex_unlock(&drv_data.drv_mutex);
+}
+
+static int chcr_dev_move(struct uld_ctx *u_ctx)
+{
+	mutex_lock(&drv_data.drv_mutex);
+	if (drv_data.last_dev == u_ctx) {
+		if (list_is_last(&drv_data.last_dev->entry, &drv_data.act_dev))
+			drv_data.last_dev = list_first_entry(&drv_data.act_dev,
+						  struct uld_ctx, entry);
+		else
+			drv_data.last_dev =
+				list_next_entry(drv_data.last_dev, entry);
+	}
+	list_move(&u_ctx->entry, &drv_data.inact_dev);
+	if (list_empty(&drv_data.act_dev))
+		drv_data.last_dev = NULL;
+	atomic_dec(&drv_data.dev_count);
+	mutex_unlock(&drv_data.drv_mutex);
+
+	return 0;
+}
+
+static int cpl_fw6_pld_handler(struct adapter *adap,
+			       unsigned char *input)
+{
+	struct crypto_async_request *req;
+	struct cpl_fw6_pld *fw6_pld;
+	u32 ack_err_status = 0;
+	int error_status = 0;
+
+	fw6_pld = (struct cpl_fw6_pld *)input;
+	req = (struct crypto_async_request *)(uintptr_t)be64_to_cpu(
+						    fw6_pld->data[1]);
+
+	ack_err_status =
+		ntohl(*(__be32 *)((unsigned char *)&fw6_pld->data[0] + 4));
+	if (CHK_MAC_ERR_BIT(ack_err_status) || CHK_PAD_ERR_BIT(ack_err_status))
+		error_status = -EBADMSG;
+	/* call completion callback with failure status */
+	if (req) {
+		error_status = chcr_handle_resp(req, input, error_status);
+	} else {
+		pr_err("Incorrect request address from the firmware\n");
+		return -EFAULT;
+	}
+	if (error_status)
+		atomic_inc(&adap->chcr_stats.error);
+
+	return 0;
+}
+
+int chcr_send_wr(struct sk_buff *skb)
+{
+	return cxgb4_crypto_send(skb->dev, skb);
+}
+
+static void *chcr_uld_add(const struct cxgb4_lld_info *lld)
+{
+	struct uld_ctx *u_ctx;
+
+	/* Create the device and add it in the device list */
+	pr_info_once("%s\n", DRV_DESC);
+	if (!(lld->ulp_crypto & ULP_CRYPTO_LOOKASIDE))
+		return ERR_PTR(-EOPNOTSUPP);
+
+	/* Create the device and add it in the device list */
+	u_ctx = kzalloc(sizeof(*u_ctx), GFP_KERNEL);
+	if (!u_ctx) {
+		u_ctx = ERR_PTR(-ENOMEM);
+		goto out;
+	}
+	u_ctx->lldi = *lld;
+	chcr_dev_init(u_ctx);
+out:
+	return u_ctx;
+}
+
+int chcr_uld_rx_handler(void *handle, const __be64 *rsp,
+			const struct pkt_gl *pgl)
+{
+	struct uld_ctx *u_ctx = (struct uld_ctx *)handle;
+	struct chcr_dev *dev = &u_ctx->dev;
+	struct adapter *adap = padap(dev);
+	const struct cpl_fw6_pld *rpl = (struct cpl_fw6_pld *)rsp;
+
+	if (!work_handlers[rpl->opcode]) {
+		pr_err("Unsupported opcode %d received\n", rpl->opcode);
+		return 0;
+	}
+
+	if (!pgl)
+		work_handlers[rpl->opcode](adap, (unsigned char *)&rsp[1]);
+	else
+		work_handlers[rpl->opcode](adap, pgl->va);
+	return 0;
+}
+
+static void chcr_detach_device(struct uld_ctx *u_ctx)
+{
+	struct chcr_dev *dev = &u_ctx->dev;
+
+	if (dev->state == CHCR_DETACH) {
+		pr_debug("Detached Event received for already detach device\n");
+		return;
+	}
+	dev->state = CHCR_DETACH;
+	if (atomic_read(&dev->inflight) != 0) {
+		schedule_delayed_work(&dev->detach_work, WQ_DETACH_TM);
+		wait_for_completion(&dev->detach_comp);
+	}
+
+	// Move u_ctx to inactive_dev list
+	chcr_dev_move(u_ctx);
+}
+
+static int chcr_uld_state_change(void *handle, enum cxgb4_state state)
+{
+	struct uld_ctx *u_ctx = handle;
+	int ret = 0;
+
+	switch (state) {
+	case CXGB4_STATE_UP:
+		if (u_ctx->dev.state != CHCR_INIT) {
+			// ALready Initialised.
+			return 0;
+		}
+		chcr_dev_add(u_ctx);
+		ret = start_crypto();
+		break;
+
+	case CXGB4_STATE_DETACH:
+		chcr_detach_device(u_ctx);
+		if (!atomic_read(&drv_data.dev_count))
+			stop_crypto();
+		break;
+
+	case CXGB4_STATE_START_RECOVERY:
+	case CXGB4_STATE_DOWN:
+	default:
+		break;
+	}
+	return ret;
+}
+
+static int __init chcr_crypto_init(void)
+{
+	INIT_LIST_HEAD(&drv_data.act_dev);
+	INIT_LIST_HEAD(&drv_data.inact_dev);
+	atomic_set(&drv_data.dev_count, 0);
+	mutex_init(&drv_data.drv_mutex);
+	drv_data.last_dev = NULL;
+	cxgb4_register_uld(CXGB4_ULD_CRYPTO, &chcr_uld_info);
+
+	return 0;
+}
+
+static void __exit chcr_crypto_exit(void)
+{
+	struct uld_ctx *u_ctx, *tmp;
+	struct adapter *adap;
+
+	stop_crypto();
+	cxgb4_unregister_uld(CXGB4_ULD_CRYPTO);
+	/* Remove all devices from list */
+	mutex_lock(&drv_data.drv_mutex);
+	list_for_each_entry_safe(u_ctx, tmp, &drv_data.act_dev, entry) {
+		adap = padap(&u_ctx->dev);
+		memset(&adap->chcr_stats, 0, sizeof(adap->chcr_stats));
+		list_del(&u_ctx->entry);
+		kfree(u_ctx);
+	}
+	list_for_each_entry_safe(u_ctx, tmp, &drv_data.inact_dev, entry) {
+		adap = padap(&u_ctx->dev);
+		memset(&adap->chcr_stats, 0, sizeof(adap->chcr_stats));
+		list_del(&u_ctx->entry);
+		kfree(u_ctx);
+	}
+	mutex_unlock(&drv_data.drv_mutex);
+}
+
+module_init(chcr_crypto_init);
+module_exit(chcr_crypto_exit);
+
+MODULE_DESCRIPTION("Crypto Co-processor for Chelsio Terminator cards.");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Chelsio Communications");