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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /arch/powerpc/platforms/83xx/mpc832x_rdb.c
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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(). ...
Diffstat (limited to 'arch/powerpc/platforms/83xx/mpc832x_rdb.c')
-rw-r--r--arch/powerpc/platforms/83xx/mpc832x_rdb.c234
1 files changed, 234 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/83xx/mpc832x_rdb.c b/arch/powerpc/platforms/83xx/mpc832x_rdb.c
new file mode 100644
index 000000000..caa96edf0
--- /dev/null
+++ b/arch/powerpc/platforms/83xx/mpc832x_rdb.c
@@ -0,0 +1,234 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * arch/powerpc/platforms/83xx/mpc832x_rdb.c
+ *
+ * Copyright (C) Freescale Semiconductor, Inc. 2007. All rights reserved.
+ *
+ * Description:
+ * MPC832x RDB board specific routines.
+ * This file is based on mpc832x_mds.c and mpc8313_rdb.c
+ * Author: Michael Barkowski <michael.barkowski@freescale.com>
+ */
+
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/mmc_spi.h>
+#include <linux/mmc/host.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/fsl_devices.h>
+
+#include <asm/time.h>
+#include <asm/ipic.h>
+#include <asm/udbg.h>
+#include <soc/fsl/qe/qe.h>
+#include <sysdev/fsl_soc.h>
+#include <sysdev/fsl_pci.h>
+
+#include "mpc83xx.h"
+
+#undef DEBUG
+#ifdef DEBUG
+#define DBG(fmt...) udbg_printf(fmt)
+#else
+#define DBG(fmt...)
+#endif
+
+#ifdef CONFIG_QUICC_ENGINE
+static int __init of_fsl_spi_probe(char *type, char *compatible, u32 sysclk,
+ struct spi_board_info *board_infos,
+ unsigned int num_board_infos,
+ void (*cs_control)(struct spi_device *dev,
+ bool on))
+{
+ struct device_node *np;
+ unsigned int i = 0;
+
+ for_each_compatible_node(np, type, compatible) {
+ int ret;
+ unsigned int j;
+ const void *prop;
+ struct resource res[2];
+ struct platform_device *pdev;
+ struct fsl_spi_platform_data pdata = {
+ .cs_control = cs_control,
+ };
+
+ memset(res, 0, sizeof(res));
+
+ pdata.sysclk = sysclk;
+
+ prop = of_get_property(np, "reg", NULL);
+ if (!prop)
+ goto err;
+ pdata.bus_num = *(u32 *)prop;
+
+ prop = of_get_property(np, "cell-index", NULL);
+ if (prop)
+ i = *(u32 *)prop;
+
+ prop = of_get_property(np, "mode", NULL);
+ if (prop && !strcmp(prop, "cpu-qe"))
+ pdata.flags = SPI_QE_CPU_MODE;
+
+ for (j = 0; j < num_board_infos; j++) {
+ if (board_infos[j].bus_num == pdata.bus_num)
+ pdata.max_chipselect++;
+ }
+
+ if (!pdata.max_chipselect)
+ continue;
+
+ ret = of_address_to_resource(np, 0, &res[0]);
+ if (ret)
+ goto err;
+
+ ret = of_irq_to_resource(np, 0, &res[1]);
+ if (ret <= 0)
+ goto err;
+
+ pdev = platform_device_alloc("mpc83xx_spi", i);
+ if (!pdev)
+ goto err;
+
+ ret = platform_device_add_data(pdev, &pdata, sizeof(pdata));
+ if (ret)
+ goto unreg;
+
+ ret = platform_device_add_resources(pdev, res,
+ ARRAY_SIZE(res));
+ if (ret)
+ goto unreg;
+
+ ret = platform_device_add(pdev);
+ if (ret)
+ goto unreg;
+
+ goto next;
+unreg:
+ platform_device_put(pdev);
+err:
+ pr_err("%pOF: registration failed\n", np);
+next:
+ i++;
+ }
+
+ return i;
+}
+
+static int __init fsl_spi_init(struct spi_board_info *board_infos,
+ unsigned int num_board_infos,
+ void (*cs_control)(struct spi_device *spi,
+ bool on))
+{
+ u32 sysclk = -1;
+ int ret;
+
+ /* SPI controller is either clocked from QE or SoC clock */
+ sysclk = get_brgfreq();
+ if (sysclk == -1) {
+ sysclk = fsl_get_sys_freq();
+ if (sysclk == -1)
+ return -ENODEV;
+ }
+
+ ret = of_fsl_spi_probe(NULL, "fsl,spi", sysclk, board_infos,
+ num_board_infos, cs_control);
+ if (!ret)
+ of_fsl_spi_probe("spi", "fsl_spi", sysclk, board_infos,
+ num_board_infos, cs_control);
+
+ return spi_register_board_info(board_infos, num_board_infos);
+}
+
+static void mpc83xx_spi_cs_control(struct spi_device *spi, bool on)
+{
+ pr_debug("%s %d %d\n", __func__, spi->chip_select, on);
+ par_io_data_set(3, 13, on);
+}
+
+static struct mmc_spi_platform_data mpc832x_mmc_pdata = {
+ .ocr_mask = MMC_VDD_33_34,
+};
+
+static struct spi_board_info mpc832x_spi_boardinfo = {
+ .bus_num = 0x4c0,
+ .chip_select = 0,
+ .max_speed_hz = 50000000,
+ .modalias = "mmc_spi",
+ .platform_data = &mpc832x_mmc_pdata,
+};
+
+static int __init mpc832x_spi_init(void)
+{
+ struct device_node *np;
+
+ par_io_config_pin(3, 0, 3, 0, 1, 0); /* SPI1 MOSI, I/O */
+ par_io_config_pin(3, 1, 3, 0, 1, 0); /* SPI1 MISO, I/O */
+ par_io_config_pin(3, 2, 3, 0, 1, 0); /* SPI1 CLK, I/O */
+ par_io_config_pin(3, 3, 2, 0, 1, 0); /* SPI1 SEL, I */
+
+ par_io_config_pin(3, 13, 1, 0, 0, 0); /* !SD_CS, O */
+ par_io_config_pin(3, 14, 2, 0, 0, 0); /* SD_INSERT, I */
+ par_io_config_pin(3, 15, 2, 0, 0, 0); /* SD_PROTECT,I */
+
+ /*
+ * Don't bother with legacy stuff when device tree contains
+ * mmc-spi-slot node.
+ */
+ np = of_find_compatible_node(NULL, NULL, "mmc-spi-slot");
+ of_node_put(np);
+ if (np)
+ return 0;
+ return fsl_spi_init(&mpc832x_spi_boardinfo, 1, mpc83xx_spi_cs_control);
+}
+machine_device_initcall(mpc832x_rdb, mpc832x_spi_init);
+#endif /* CONFIG_QUICC_ENGINE */
+
+/* ************************************************************************
+ *
+ * Setup the architecture
+ *
+ */
+static void __init mpc832x_rdb_setup_arch(void)
+{
+#if defined(CONFIG_QUICC_ENGINE)
+ struct device_node *np;
+#endif
+
+ mpc83xx_setup_arch();
+
+#ifdef CONFIG_QUICC_ENGINE
+ if ((np = of_find_node_by_name(NULL, "par_io")) != NULL) {
+ par_io_init(np);
+ of_node_put(np);
+
+ for_each_node_by_name(np, "ucc")
+ par_io_of_config(np);
+ }
+#endif /* CONFIG_QUICC_ENGINE */
+}
+
+machine_device_initcall(mpc832x_rdb, mpc83xx_declare_of_platform_devices);
+
+/*
+ * Called very early, MMU is off, device-tree isn't unflattened
+ */
+static int __init mpc832x_rdb_probe(void)
+{
+ return of_machine_is_compatible("MPC832xRDB");
+}
+
+define_machine(mpc832x_rdb) {
+ .name = "MPC832x RDB",
+ .probe = mpc832x_rdb_probe,
+ .setup_arch = mpc832x_rdb_setup_arch,
+ .discover_phbs = mpc83xx_setup_pci,
+ .init_IRQ = mpc83xx_ipic_init_IRQ,
+ .get_irq = ipic_get_irq,
+ .restart = mpc83xx_restart,
+ .time_init = mpc83xx_time_init,
+ .calibrate_decr = generic_calibrate_decr,
+ .progress = udbg_progress,
+};