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, 524 insertions, 0 deletions

diff --git a/arch/mips/pci/ops-tx4927.c b/arch/mips/pci/ops-tx4927.c
new file mode 100644
index 000000000..f7802f100
--- /dev/null
+++ b/arch/mips/pci/ops-tx4927.c
@@ -0,0 +1,524 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Define the pci_ops for the PCIC on Toshiba TX4927, TX4938, etc.
+ *
+ * Based on linux/arch/mips/pci/ops-tx4938.c,
+ *	    linux/arch/mips/pci/fixup-rbtx4938.c,
+ *	    linux/arch/mips/txx9/rbtx4938/setup.c,
+ *	    and RBTX49xx patch from CELF patch archive.
+ *
+ * 2003-2005 (c) MontaVista Software, Inc.
+ * Copyright (C) 2004 by Ralf Baechle (ralf@linux-mips.org)
+ * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
+ */
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <asm/txx9/pci.h>
+#include <asm/txx9/tx4927pcic.h>
+
+static struct {
+	struct pci_controller *channel;
+	struct tx4927_pcic_reg __iomem *pcicptr;
+} pcicptrs[2];	/* TX4938 has 2 pcic */
+
+static void __init set_tx4927_pcicptr(struct pci_controller *channel,
+				      struct tx4927_pcic_reg __iomem *pcicptr)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(pcicptrs); i++) {
+		if (pcicptrs[i].channel == channel) {
+			pcicptrs[i].pcicptr = pcicptr;
+			return;
+		}
+	}
+	for (i = 0; i < ARRAY_SIZE(pcicptrs); i++) {
+		if (!pcicptrs[i].channel) {
+			pcicptrs[i].channel = channel;
+			pcicptrs[i].pcicptr = pcicptr;
+			return;
+		}
+	}
+	BUG();
+}
+
+struct tx4927_pcic_reg __iomem *get_tx4927_pcicptr(
+	struct pci_controller *channel)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(pcicptrs); i++) {
+		if (pcicptrs[i].channel == channel)
+			return pcicptrs[i].pcicptr;
+	}
+	return NULL;
+}
+
+static int mkaddr(struct pci_bus *bus, unsigned int devfn, int where,
+		  struct tx4927_pcic_reg __iomem *pcicptr)
+{
+	if (bus->parent == NULL &&
+	    devfn >= PCI_DEVFN(TX4927_PCIC_MAX_DEVNU, 0))
+		return -1;
+	__raw_writel(((bus->number & 0xff) << 0x10)
+		     | ((devfn & 0xff) << 0x08) | (where & 0xfc)
+		     | (bus->parent ? 1 : 0),
+		     &pcicptr->g2pcfgadrs);
+	/* clear M_ABORT and Disable M_ABORT Int. */
+	__raw_writel((__raw_readl(&pcicptr->pcistatus) & 0x0000ffff)
+		     | (PCI_STATUS_REC_MASTER_ABORT << 16),
+		     &pcicptr->pcistatus);
+	return 0;
+}
+
+static int check_abort(struct tx4927_pcic_reg __iomem *pcicptr)
+{
+	int code = PCIBIOS_SUCCESSFUL;
+
+	/* wait write cycle completion before checking error status */
+	while (__raw_readl(&pcicptr->pcicstatus) & TX4927_PCIC_PCICSTATUS_IWB)
+		;
+	if (__raw_readl(&pcicptr->pcistatus)
+	    & (PCI_STATUS_REC_MASTER_ABORT << 16)) {
+		__raw_writel((__raw_readl(&pcicptr->pcistatus) & 0x0000ffff)
+			     | (PCI_STATUS_REC_MASTER_ABORT << 16),
+			     &pcicptr->pcistatus);
+		/* flush write buffer */
+		iob();
+		code = PCIBIOS_DEVICE_NOT_FOUND;
+	}
+	return code;
+}
+
+static u8 icd_readb(int offset, struct tx4927_pcic_reg __iomem *pcicptr)
+{
+#ifdef __BIG_ENDIAN
+	offset ^= 3;
+#endif
+	return __raw_readb((void __iomem *)&pcicptr->g2pcfgdata + offset);
+}
+static u16 icd_readw(int offset, struct tx4927_pcic_reg __iomem *pcicptr)
+{
+#ifdef __BIG_ENDIAN
+	offset ^= 2;
+#endif
+	return __raw_readw((void __iomem *)&pcicptr->g2pcfgdata + offset);
+}
+static u32 icd_readl(struct tx4927_pcic_reg __iomem *pcicptr)
+{
+	return __raw_readl(&pcicptr->g2pcfgdata);
+}
+static void icd_writeb(u8 val, int offset,
+		       struct tx4927_pcic_reg __iomem *pcicptr)
+{
+#ifdef __BIG_ENDIAN
+	offset ^= 3;
+#endif
+	__raw_writeb(val, (void __iomem *)&pcicptr->g2pcfgdata + offset);
+}
+static void icd_writew(u16 val, int offset,
+		       struct tx4927_pcic_reg __iomem *pcicptr)
+{
+#ifdef __BIG_ENDIAN
+	offset ^= 2;
+#endif
+	__raw_writew(val, (void __iomem *)&pcicptr->g2pcfgdata + offset);
+}
+static void icd_writel(u32 val, struct tx4927_pcic_reg __iomem *pcicptr)
+{
+	__raw_writel(val, &pcicptr->g2pcfgdata);
+}
+
+static struct tx4927_pcic_reg __iomem *pci_bus_to_pcicptr(struct pci_bus *bus)
+{
+	struct pci_controller *channel = bus->sysdata;
+	return get_tx4927_pcicptr(channel);
+}
+
+static int tx4927_pci_config_read(struct pci_bus *bus, unsigned int devfn,
+				  int where, int size, u32 *val)
+{
+	struct tx4927_pcic_reg __iomem *pcicptr = pci_bus_to_pcicptr(bus);
+
+	if (mkaddr(bus, devfn, where, pcicptr)) {
+		*val = 0xffffffff;
+		return -1;
+	}
+	switch (size) {
+	case 1:
+		*val = icd_readb(where & 3, pcicptr);
+		break;
+	case 2:
+		*val = icd_readw(where & 3, pcicptr);
+		break;
+	default:
+		*val = icd_readl(pcicptr);
+	}
+	return check_abort(pcicptr);
+}
+
+static int tx4927_pci_config_write(struct pci_bus *bus, unsigned int devfn,
+				   int where, int size, u32 val)
+{
+	struct tx4927_pcic_reg __iomem *pcicptr = pci_bus_to_pcicptr(bus);
+
+	if (mkaddr(bus, devfn, where, pcicptr))
+		return -1;
+	switch (size) {
+	case 1:
+		icd_writeb(val, where & 3, pcicptr);
+		break;
+	case 2:
+		icd_writew(val, where & 3, pcicptr);
+		break;
+	default:
+		icd_writel(val, pcicptr);
+	}
+	return check_abort(pcicptr);
+}
+
+static struct pci_ops tx4927_pci_ops = {
+	.read = tx4927_pci_config_read,
+	.write = tx4927_pci_config_write,
+};
+
+static struct {
+	u8 trdyto;
+	u8 retryto;
+	u16 gbwc;
+} tx4927_pci_opts = {
+	.trdyto = 0,
+	.retryto = 0,
+	.gbwc = 0xfe0,	/* 4064 GBUSCLK for CCFG.GTOT=0b11 */
+};
+
+char *tx4927_pcibios_setup(char *str)
+{
+	if (!strncmp(str, "trdyto=", 7)) {
+		u8 val = 0;
+		if (kstrtou8(str + 7, 0, &val) == 0)
+			tx4927_pci_opts.trdyto = val;
+		return NULL;
+	}
+	if (!strncmp(str, "retryto=", 8)) {
+		u8 val = 0;
+		if (kstrtou8(str + 8, 0, &val) == 0)
+			tx4927_pci_opts.retryto = val;
+		return NULL;
+	}
+	if (!strncmp(str, "gbwc=", 5)) {
+		u16 val;
+		if (kstrtou16(str + 5, 0, &val) == 0)
+			tx4927_pci_opts.gbwc = val;
+		return NULL;
+	}
+	return str;
+}
+
+void __init tx4927_pcic_setup(struct tx4927_pcic_reg __iomem *pcicptr,
+			      struct pci_controller *channel, int extarb)
+{
+	int i;
+	unsigned long flags;
+
+	set_tx4927_pcicptr(channel, pcicptr);
+
+	if (!channel->pci_ops)
+		printk(KERN_INFO
+		       "PCIC -- DID:%04x VID:%04x RID:%02x Arbiter:%s\n",
+		       __raw_readl(&pcicptr->pciid) >> 16,
+		       __raw_readl(&pcicptr->pciid) & 0xffff,
+		       __raw_readl(&pcicptr->pciccrev) & 0xff,
+			extarb ? "External" : "Internal");
+	channel->pci_ops = &tx4927_pci_ops;
+
+	local_irq_save(flags);
+
+	/* Disable All Initiator Space */
+	__raw_writel(__raw_readl(&pcicptr->pciccfg)
+		     & ~(TX4927_PCIC_PCICCFG_G2PMEN(0)
+			 | TX4927_PCIC_PCICCFG_G2PMEN(1)
+			 | TX4927_PCIC_PCICCFG_G2PMEN(2)
+			 | TX4927_PCIC_PCICCFG_G2PIOEN),
+		     &pcicptr->pciccfg);
+
+	/* GB->PCI mappings */
+	__raw_writel((channel->io_resource->end - channel->io_resource->start)
+		     >> 4,
+		     &pcicptr->g2piomask);
+	____raw_writeq((channel->io_resource->start +
+			channel->io_map_base - IO_BASE) |
+#ifdef __BIG_ENDIAN
+		       TX4927_PCIC_G2PIOGBASE_ECHG
+#else
+		       TX4927_PCIC_G2PIOGBASE_BSDIS
+#endif
+		       , &pcicptr->g2piogbase);
+	____raw_writeq(channel->io_resource->start - channel->io_offset,
+		       &pcicptr->g2piopbase);
+	for (i = 0; i < 3; i++) {
+		__raw_writel(0, &pcicptr->g2pmmask[i]);
+		____raw_writeq(0, &pcicptr->g2pmgbase[i]);
+		____raw_writeq(0, &pcicptr->g2pmpbase[i]);
+	}
+	if (channel->mem_resource->end) {
+		__raw_writel((channel->mem_resource->end
+			      - channel->mem_resource->start) >> 4,
+			     &pcicptr->g2pmmask[0]);
+		____raw_writeq(channel->mem_resource->start |
+#ifdef __BIG_ENDIAN
+			       TX4927_PCIC_G2PMnGBASE_ECHG
+#else
+			       TX4927_PCIC_G2PMnGBASE_BSDIS
+#endif
+			       , &pcicptr->g2pmgbase[0]);
+		____raw_writeq(channel->mem_resource->start -
+			       channel->mem_offset,
+			       &pcicptr->g2pmpbase[0]);
+	}
+	/* PCI->GB mappings (I/O 256B) */
+	__raw_writel(0, &pcicptr->p2giopbase); /* 256B */
+	____raw_writeq(0, &pcicptr->p2giogbase);
+	/* PCI->GB mappings (MEM 512MB (64MB on R1.x)) */
+	__raw_writel(0, &pcicptr->p2gm0plbase);
+	__raw_writel(0, &pcicptr->p2gm0pubase);
+	____raw_writeq(TX4927_PCIC_P2GMnGBASE_TMEMEN |
+#ifdef __BIG_ENDIAN
+		       TX4927_PCIC_P2GMnGBASE_TECHG
+#else
+		       TX4927_PCIC_P2GMnGBASE_TBSDIS
+#endif
+		       , &pcicptr->p2gmgbase[0]);
+	/* PCI->GB mappings (MEM 16MB) */
+	__raw_writel(0xffffffff, &pcicptr->p2gm1plbase);
+	__raw_writel(0xffffffff, &pcicptr->p2gm1pubase);
+	____raw_writeq(0, &pcicptr->p2gmgbase[1]);
+	/* PCI->GB mappings (MEM 1MB) */
+	__raw_writel(0xffffffff, &pcicptr->p2gm2pbase); /* 1MB */
+	____raw_writeq(0, &pcicptr->p2gmgbase[2]);
+
+	/* Clear all (including IRBER) except for GBWC */
+	__raw_writel((tx4927_pci_opts.gbwc << 16)
+		     & TX4927_PCIC_PCICCFG_GBWC_MASK,
+		     &pcicptr->pciccfg);
+	/* Enable Initiator Memory Space */
+	if (channel->mem_resource->end)
+		__raw_writel(__raw_readl(&pcicptr->pciccfg)
+			     | TX4927_PCIC_PCICCFG_G2PMEN(0),
+			     &pcicptr->pciccfg);
+	/* Enable Initiator I/O Space */
+	if (channel->io_resource->end)
+		__raw_writel(__raw_readl(&pcicptr->pciccfg)
+			     | TX4927_PCIC_PCICCFG_G2PIOEN,
+			     &pcicptr->pciccfg);
+	/* Enable Initiator Config */
+	__raw_writel(__raw_readl(&pcicptr->pciccfg)
+		     | TX4927_PCIC_PCICCFG_ICAEN | TX4927_PCIC_PCICCFG_TCAR,
+		     &pcicptr->pciccfg);
+
+	/* Do not use MEMMUL, MEMINF: YMFPCI card causes M_ABORT. */
+	__raw_writel(0, &pcicptr->pcicfg1);
+
+	__raw_writel((__raw_readl(&pcicptr->g2ptocnt) & ~0xffff)
+		     | (tx4927_pci_opts.trdyto & 0xff)
+		     | ((tx4927_pci_opts.retryto & 0xff) << 8),
+		     &pcicptr->g2ptocnt);
+
+	/* Clear All Local Bus Status */
+	__raw_writel(TX4927_PCIC_PCICSTATUS_ALL, &pcicptr->pcicstatus);
+	/* Enable All Local Bus Interrupts */
+	__raw_writel(TX4927_PCIC_PCICSTATUS_ALL, &pcicptr->pcicmask);
+	/* Clear All Initiator Status */
+	__raw_writel(TX4927_PCIC_G2PSTATUS_ALL, &pcicptr->g2pstatus);
+	/* Enable All Initiator Interrupts */
+	__raw_writel(TX4927_PCIC_G2PSTATUS_ALL, &pcicptr->g2pmask);
+	/* Clear All PCI Status Error */
+	__raw_writel((__raw_readl(&pcicptr->pcistatus) & 0x0000ffff)
+		     | (TX4927_PCIC_PCISTATUS_ALL << 16),
+		     &pcicptr->pcistatus);
+	/* Enable All PCI Status Error Interrupts */
+	__raw_writel(TX4927_PCIC_PCISTATUS_ALL, &pcicptr->pcimask);
+
+	if (!extarb) {
+		/* Reset Bus Arbiter */
+		__raw_writel(TX4927_PCIC_PBACFG_RPBA, &pcicptr->pbacfg);
+		__raw_writel(0, &pcicptr->pbabm);
+		/* Enable Bus Arbiter */
+		__raw_writel(TX4927_PCIC_PBACFG_PBAEN, &pcicptr->pbacfg);
+	}
+
+	__raw_writel(PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY
+		     | PCI_COMMAND_PARITY | PCI_COMMAND_SERR,
+		     &pcicptr->pcistatus);
+	local_irq_restore(flags);
+
+	printk(KERN_DEBUG
+	       "PCI: COMMAND=%04x,PCIMASK=%04x,"
+	       "TRDYTO=%02x,RETRYTO=%02x,GBWC=%03x\n",
+	       __raw_readl(&pcicptr->pcistatus) & 0xffff,
+	       __raw_readl(&pcicptr->pcimask) & 0xffff,
+	       __raw_readl(&pcicptr->g2ptocnt) & 0xff,
+	       (__raw_readl(&pcicptr->g2ptocnt) & 0xff00) >> 8,
+	       (__raw_readl(&pcicptr->pciccfg) >> 16) & 0xfff);
+}
+
+static void tx4927_report_pcic_status1(struct tx4927_pcic_reg __iomem *pcicptr)
+{
+	__u16 pcistatus = (__u16)(__raw_readl(&pcicptr->pcistatus) >> 16);
+	__u32 g2pstatus = __raw_readl(&pcicptr->g2pstatus);
+	__u32 pcicstatus = __raw_readl(&pcicptr->pcicstatus);
+	static struct {
+		__u32 flag;
+		const char *str;
+	} pcistat_tbl[] = {
+		{ PCI_STATUS_DETECTED_PARITY,	"DetectedParityError" },
+		{ PCI_STATUS_SIG_SYSTEM_ERROR,	"SignaledSystemError" },
+		{ PCI_STATUS_REC_MASTER_ABORT,	"ReceivedMasterAbort" },
+		{ PCI_STATUS_REC_TARGET_ABORT,	"ReceivedTargetAbort" },
+		{ PCI_STATUS_SIG_TARGET_ABORT,	"SignaledTargetAbort" },
+		{ PCI_STATUS_PARITY,	"MasterParityError" },
+	}, g2pstat_tbl[] = {
+		{ TX4927_PCIC_G2PSTATUS_TTOE,	"TIOE" },
+		{ TX4927_PCIC_G2PSTATUS_RTOE,	"RTOE" },
+	}, pcicstat_tbl[] = {
+		{ TX4927_PCIC_PCICSTATUS_PME,	"PME" },
+		{ TX4927_PCIC_PCICSTATUS_TLB,	"TLB" },
+		{ TX4927_PCIC_PCICSTATUS_NIB,	"NIB" },
+		{ TX4927_PCIC_PCICSTATUS_ZIB,	"ZIB" },
+		{ TX4927_PCIC_PCICSTATUS_PERR,	"PERR" },
+		{ TX4927_PCIC_PCICSTATUS_SERR,	"SERR" },
+		{ TX4927_PCIC_PCICSTATUS_GBE,	"GBE" },
+		{ TX4927_PCIC_PCICSTATUS_IWB,	"IWB" },
+	};
+	int i, cont;
+
+	printk(KERN_ERR "");
+	if (pcistatus & TX4927_PCIC_PCISTATUS_ALL) {
+		printk(KERN_CONT "pcistat:%04x(", pcistatus);
+		for (i = 0, cont = 0; i < ARRAY_SIZE(pcistat_tbl); i++)
+			if (pcistatus & pcistat_tbl[i].flag)
+				printk(KERN_CONT "%s%s",
+				       cont++ ? " " : "", pcistat_tbl[i].str);
+		printk(KERN_CONT ") ");
+	}
+	if (g2pstatus & TX4927_PCIC_G2PSTATUS_ALL) {
+		printk(KERN_CONT "g2pstatus:%08x(", g2pstatus);
+		for (i = 0, cont = 0; i < ARRAY_SIZE(g2pstat_tbl); i++)
+			if (g2pstatus & g2pstat_tbl[i].flag)
+				printk(KERN_CONT "%s%s",
+				       cont++ ? " " : "", g2pstat_tbl[i].str);
+		printk(KERN_CONT ") ");
+	}
+	if (pcicstatus & TX4927_PCIC_PCICSTATUS_ALL) {
+		printk(KERN_CONT "pcicstatus:%08x(", pcicstatus);
+		for (i = 0, cont = 0; i < ARRAY_SIZE(pcicstat_tbl); i++)
+			if (pcicstatus & pcicstat_tbl[i].flag)
+				printk(KERN_CONT "%s%s",
+				       cont++ ? " " : "", pcicstat_tbl[i].str);
+		printk(KERN_CONT ")");
+	}
+	printk(KERN_CONT "\n");
+}
+
+void tx4927_report_pcic_status(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(pcicptrs); i++) {
+		if (pcicptrs[i].pcicptr)
+			tx4927_report_pcic_status1(pcicptrs[i].pcicptr);
+	}
+}
+
+static void tx4927_dump_pcic_settings1(struct tx4927_pcic_reg __iomem *pcicptr)
+{
+	int i;
+	__u32 __iomem *preg = (__u32 __iomem *)pcicptr;
+
+	printk(KERN_INFO "tx4927 pcic (0x%p) settings:", pcicptr);
+	for (i = 0; i < sizeof(struct tx4927_pcic_reg); i += 4, preg++) {
+		if (i % 32 == 0) {
+			printk(KERN_CONT "\n");
+			printk(KERN_INFO "%04x:", i);
+		}
+		/* skip registers with side-effects */
+		if (i == offsetof(struct tx4927_pcic_reg, g2pintack)
+		    || i == offsetof(struct tx4927_pcic_reg, g2pspc)
+		    || i == offsetof(struct tx4927_pcic_reg, g2pcfgadrs)
+		    || i == offsetof(struct tx4927_pcic_reg, g2pcfgdata)) {
+			printk(KERN_CONT " XXXXXXXX");
+			continue;
+		}
+		printk(KERN_CONT " %08x", __raw_readl(preg));
+	}
+	printk(KERN_CONT "\n");
+}
+
+void tx4927_dump_pcic_settings(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(pcicptrs); i++) {
+		if (pcicptrs[i].pcicptr)
+			tx4927_dump_pcic_settings1(pcicptrs[i].pcicptr);
+	}
+}
+
+irqreturn_t tx4927_pcierr_interrupt(int irq, void *dev_id)
+{
+	struct pt_regs *regs = get_irq_regs();
+	struct tx4927_pcic_reg __iomem *pcicptr =
+		(struct tx4927_pcic_reg __iomem *)(unsigned long)dev_id;
+
+	if (txx9_pci_err_action != TXX9_PCI_ERR_IGNORE) {
+		printk(KERN_WARNING "PCIERR interrupt at 0x%0*lx\n",
+		       (int)(2 * sizeof(unsigned long)), regs->cp0_epc);
+		tx4927_report_pcic_status1(pcicptr);
+	}
+	if (txx9_pci_err_action != TXX9_PCI_ERR_PANIC) {
+		/* clear all pci errors */
+		__raw_writel((__raw_readl(&pcicptr->pcistatus) & 0x0000ffff)
+			     | (TX4927_PCIC_PCISTATUS_ALL << 16),
+			     &pcicptr->pcistatus);
+		__raw_writel(TX4927_PCIC_G2PSTATUS_ALL, &pcicptr->g2pstatus);
+		__raw_writel(TX4927_PCIC_PBASTATUS_ALL, &pcicptr->pbastatus);
+		__raw_writel(TX4927_PCIC_PCICSTATUS_ALL, &pcicptr->pcicstatus);
+		return IRQ_HANDLED;
+	}
+	console_verbose();
+	tx4927_dump_pcic_settings1(pcicptr);
+	panic("PCI error.");
+}
+
+#ifdef CONFIG_TOSHIBA_FPCIB0
+static void tx4927_quirk_slc90e66_bridge(struct pci_dev *dev)
+{
+	struct tx4927_pcic_reg __iomem *pcicptr = pci_bus_to_pcicptr(dev->bus);
+
+	if (!pcicptr)
+		return;
+	if (__raw_readl(&pcicptr->pbacfg) & TX4927_PCIC_PBACFG_PBAEN) {
+		/* Reset Bus Arbiter */
+		__raw_writel(TX4927_PCIC_PBACFG_RPBA, &pcicptr->pbacfg);
+		/*
+		 * swap reqBP and reqXP (raise priority of SLC90E66).
+		 * SLC90E66(PCI-ISA bridge) is connected to REQ2 on
+		 * PCI Backplane board.
+		 */
+		__raw_writel(0x72543610, &pcicptr->pbareqport);
+		__raw_writel(0, &pcicptr->pbabm);
+		/* Use Fixed ParkMaster (required by SLC90E66) */
+		__raw_writel(TX4927_PCIC_PBACFG_FIXPA, &pcicptr->pbacfg);
+		/* Enable Bus Arbiter */
+		__raw_writel(TX4927_PCIC_PBACFG_FIXPA |
+			     TX4927_PCIC_PBACFG_PBAEN,
+			     &pcicptr->pbacfg);
+		printk(KERN_INFO "PCI: Use Fixed Park Master (REQPORT %08x)\n",
+		       __raw_readl(&pcicptr->pbareqport));
+	}
+}
+#define PCI_DEVICE_ID_EFAR_SLC90E66_0 0x9460
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_0,
+	tx4927_quirk_slc90e66_bridge);
+#endif