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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/mips/bcm63xx/reset.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip
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/mips/bcm63xx/reset.c')
-rw-r--r--arch/mips/bcm63xx/reset.c219
1 files changed, 219 insertions, 0 deletions
diff --git a/arch/mips/bcm63xx/reset.c b/arch/mips/bcm63xx/reset.c
new file mode 100644
index 000000000..64574e74c
--- /dev/null
+++ b/arch/mips/bcm63xx/reset.c
@@ -0,0 +1,219 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 Jonas Gorski <jonas.gorski@gmail.com>
+ */
+
+#include <linux/init.h>
+#include <linux/export.h>
+#include <linux/mutex.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <bcm63xx_cpu.h>
+#include <bcm63xx_io.h>
+#include <bcm63xx_regs.h>
+#include <bcm63xx_reset.h>
+
+#define __GEN_RESET_BITS_TABLE(__cpu) \
+ [BCM63XX_RESET_SPI] = BCM## __cpu ##_RESET_SPI, \
+ [BCM63XX_RESET_ENET] = BCM## __cpu ##_RESET_ENET, \
+ [BCM63XX_RESET_USBH] = BCM## __cpu ##_RESET_USBH, \
+ [BCM63XX_RESET_USBD] = BCM## __cpu ##_RESET_USBD, \
+ [BCM63XX_RESET_DSL] = BCM## __cpu ##_RESET_DSL, \
+ [BCM63XX_RESET_SAR] = BCM## __cpu ##_RESET_SAR, \
+ [BCM63XX_RESET_EPHY] = BCM## __cpu ##_RESET_EPHY, \
+ [BCM63XX_RESET_ENETSW] = BCM## __cpu ##_RESET_ENETSW, \
+ [BCM63XX_RESET_PCM] = BCM## __cpu ##_RESET_PCM, \
+ [BCM63XX_RESET_MPI] = BCM## __cpu ##_RESET_MPI, \
+ [BCM63XX_RESET_PCIE] = BCM## __cpu ##_RESET_PCIE, \
+ [BCM63XX_RESET_PCIE_EXT] = BCM## __cpu ##_RESET_PCIE_EXT,
+
+#define BCM3368_RESET_SPI SOFTRESET_3368_SPI_MASK
+#define BCM3368_RESET_ENET SOFTRESET_3368_ENET_MASK
+#define BCM3368_RESET_USBH 0
+#define BCM3368_RESET_USBD SOFTRESET_3368_USBS_MASK
+#define BCM3368_RESET_DSL 0
+#define BCM3368_RESET_SAR 0
+#define BCM3368_RESET_EPHY SOFTRESET_3368_EPHY_MASK
+#define BCM3368_RESET_ENETSW 0
+#define BCM3368_RESET_PCM SOFTRESET_3368_PCM_MASK
+#define BCM3368_RESET_MPI SOFTRESET_3368_MPI_MASK
+#define BCM3368_RESET_PCIE 0
+#define BCM3368_RESET_PCIE_EXT 0
+
+#define BCM6328_RESET_SPI SOFTRESET_6328_SPI_MASK
+#define BCM6328_RESET_ENET 0
+#define BCM6328_RESET_USBH SOFTRESET_6328_USBH_MASK
+#define BCM6328_RESET_USBD SOFTRESET_6328_USBS_MASK
+#define BCM6328_RESET_DSL 0
+#define BCM6328_RESET_SAR SOFTRESET_6328_SAR_MASK
+#define BCM6328_RESET_EPHY SOFTRESET_6328_EPHY_MASK
+#define BCM6328_RESET_ENETSW SOFTRESET_6328_ENETSW_MASK
+#define BCM6328_RESET_PCM SOFTRESET_6328_PCM_MASK
+#define BCM6328_RESET_MPI 0
+#define BCM6328_RESET_PCIE \
+ (SOFTRESET_6328_PCIE_MASK | \
+ SOFTRESET_6328_PCIE_CORE_MASK | \
+ SOFTRESET_6328_PCIE_HARD_MASK)
+#define BCM6328_RESET_PCIE_EXT SOFTRESET_6328_PCIE_EXT_MASK
+
+#define BCM6338_RESET_SPI SOFTRESET_6338_SPI_MASK
+#define BCM6338_RESET_ENET SOFTRESET_6338_ENET_MASK
+#define BCM6338_RESET_USBH SOFTRESET_6338_USBH_MASK
+#define BCM6338_RESET_USBD SOFTRESET_6338_USBS_MASK
+#define BCM6338_RESET_DSL SOFTRESET_6338_ADSL_MASK
+#define BCM6338_RESET_SAR SOFTRESET_6338_SAR_MASK
+#define BCM6338_RESET_EPHY 0
+#define BCM6338_RESET_ENETSW 0
+#define BCM6338_RESET_PCM 0
+#define BCM6338_RESET_MPI 0
+#define BCM6338_RESET_PCIE 0
+#define BCM6338_RESET_PCIE_EXT 0
+
+#define BCM6348_RESET_SPI SOFTRESET_6348_SPI_MASK
+#define BCM6348_RESET_ENET SOFTRESET_6348_ENET_MASK
+#define BCM6348_RESET_USBH SOFTRESET_6348_USBH_MASK
+#define BCM6348_RESET_USBD SOFTRESET_6348_USBS_MASK
+#define BCM6348_RESET_DSL SOFTRESET_6348_ADSL_MASK
+#define BCM6348_RESET_SAR SOFTRESET_6348_SAR_MASK
+#define BCM6348_RESET_EPHY 0
+#define BCM6348_RESET_ENETSW 0
+#define BCM6348_RESET_PCM 0
+#define BCM6348_RESET_MPI 0
+#define BCM6348_RESET_PCIE 0
+#define BCM6348_RESET_PCIE_EXT 0
+
+#define BCM6358_RESET_SPI SOFTRESET_6358_SPI_MASK
+#define BCM6358_RESET_ENET SOFTRESET_6358_ENET_MASK
+#define BCM6358_RESET_USBH SOFTRESET_6358_USBH_MASK
+#define BCM6358_RESET_USBD 0
+#define BCM6358_RESET_DSL SOFTRESET_6358_ADSL_MASK
+#define BCM6358_RESET_SAR SOFTRESET_6358_SAR_MASK
+#define BCM6358_RESET_EPHY SOFTRESET_6358_EPHY_MASK
+#define BCM6358_RESET_ENETSW 0
+#define BCM6358_RESET_PCM SOFTRESET_6358_PCM_MASK
+#define BCM6358_RESET_MPI SOFTRESET_6358_MPI_MASK
+#define BCM6358_RESET_PCIE 0
+#define BCM6358_RESET_PCIE_EXT 0
+
+#define BCM6362_RESET_SPI SOFTRESET_6362_SPI_MASK
+#define BCM6362_RESET_ENET 0
+#define BCM6362_RESET_USBH SOFTRESET_6362_USBH_MASK
+#define BCM6362_RESET_USBD SOFTRESET_6362_USBS_MASK
+#define BCM6362_RESET_DSL 0
+#define BCM6362_RESET_SAR SOFTRESET_6362_SAR_MASK
+#define BCM6362_RESET_EPHY SOFTRESET_6362_EPHY_MASK
+#define BCM6362_RESET_ENETSW SOFTRESET_6362_ENETSW_MASK
+#define BCM6362_RESET_PCM SOFTRESET_6362_PCM_MASK
+#define BCM6362_RESET_MPI 0
+#define BCM6362_RESET_PCIE (SOFTRESET_6362_PCIE_MASK | \
+ SOFTRESET_6362_PCIE_CORE_MASK)
+#define BCM6362_RESET_PCIE_EXT SOFTRESET_6362_PCIE_EXT_MASK
+
+#define BCM6368_RESET_SPI SOFTRESET_6368_SPI_MASK
+#define BCM6368_RESET_ENET 0
+#define BCM6368_RESET_USBH SOFTRESET_6368_USBH_MASK
+#define BCM6368_RESET_USBD SOFTRESET_6368_USBS_MASK
+#define BCM6368_RESET_DSL 0
+#define BCM6368_RESET_SAR SOFTRESET_6368_SAR_MASK
+#define BCM6368_RESET_EPHY SOFTRESET_6368_EPHY_MASK
+#define BCM6368_RESET_ENETSW SOFTRESET_6368_ENETSW_MASK
+#define BCM6368_RESET_PCM SOFTRESET_6368_PCM_MASK
+#define BCM6368_RESET_MPI SOFTRESET_6368_MPI_MASK
+#define BCM6368_RESET_PCIE 0
+#define BCM6368_RESET_PCIE_EXT 0
+
+/*
+ * core reset bits
+ */
+static const u32 bcm3368_reset_bits[] = {
+ __GEN_RESET_BITS_TABLE(3368)
+};
+
+static const u32 bcm6328_reset_bits[] = {
+ __GEN_RESET_BITS_TABLE(6328)
+};
+
+static const u32 bcm6338_reset_bits[] = {
+ __GEN_RESET_BITS_TABLE(6338)
+};
+
+static const u32 bcm6348_reset_bits[] = {
+ __GEN_RESET_BITS_TABLE(6348)
+};
+
+static const u32 bcm6358_reset_bits[] = {
+ __GEN_RESET_BITS_TABLE(6358)
+};
+
+static const u32 bcm6362_reset_bits[] = {
+ __GEN_RESET_BITS_TABLE(6362)
+};
+
+static const u32 bcm6368_reset_bits[] = {
+ __GEN_RESET_BITS_TABLE(6368)
+};
+
+const u32 *bcm63xx_reset_bits;
+static int reset_reg;
+
+static int __init bcm63xx_reset_bits_init(void)
+{
+ if (BCMCPU_IS_3368()) {
+ reset_reg = PERF_SOFTRESET_6358_REG;
+ bcm63xx_reset_bits = bcm3368_reset_bits;
+ } else if (BCMCPU_IS_6328()) {
+ reset_reg = PERF_SOFTRESET_6328_REG;
+ bcm63xx_reset_bits = bcm6328_reset_bits;
+ } else if (BCMCPU_IS_6338()) {
+ reset_reg = PERF_SOFTRESET_REG;
+ bcm63xx_reset_bits = bcm6338_reset_bits;
+ } else if (BCMCPU_IS_6348()) {
+ reset_reg = PERF_SOFTRESET_REG;
+ bcm63xx_reset_bits = bcm6348_reset_bits;
+ } else if (BCMCPU_IS_6358()) {
+ reset_reg = PERF_SOFTRESET_6358_REG;
+ bcm63xx_reset_bits = bcm6358_reset_bits;
+ } else if (BCMCPU_IS_6362()) {
+ reset_reg = PERF_SOFTRESET_6362_REG;
+ bcm63xx_reset_bits = bcm6362_reset_bits;
+ } else if (BCMCPU_IS_6368()) {
+ reset_reg = PERF_SOFTRESET_6368_REG;
+ bcm63xx_reset_bits = bcm6368_reset_bits;
+ }
+
+ return 0;
+}
+
+static DEFINE_SPINLOCK(reset_mutex);
+
+static void __bcm63xx_core_set_reset(u32 mask, int enable)
+{
+ unsigned long flags;
+ u32 val;
+
+ if (!mask)
+ return;
+
+ spin_lock_irqsave(&reset_mutex, flags);
+ val = bcm_perf_readl(reset_reg);
+
+ if (enable)
+ val &= ~mask;
+ else
+ val |= mask;
+
+ bcm_perf_writel(val, reset_reg);
+ spin_unlock_irqrestore(&reset_mutex, flags);
+}
+
+void bcm63xx_core_set_reset(enum bcm63xx_core_reset core, int reset)
+{
+ __bcm63xx_core_set_reset(bcm63xx_reset_bits[core], reset);
+}
+EXPORT_SYMBOL(bcm63xx_core_set_reset);
+
+postcore_initcall(bcm63xx_reset_bits_init);