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, 572 insertions, 0 deletions

diff --git a/drivers/char/mwave/smapi.c b/drivers/char/mwave/smapi.c
new file mode 100644
index 000000000..f8d79d393
--- /dev/null
+++ b/drivers/char/mwave/smapi.c
@@ -0,0 +1,572 @@
+/*
+*
+* smapi.c -- SMAPI interface routines
+*
+*
+* Written By: Mike Sullivan IBM Corporation
+*
+* Copyright (C) 1999 IBM Corporation
+*
+* 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; either version 2 of the License, or
+* (at your option) any later version.
+*
+* This program is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+* GNU General Public License for more details.
+*
+* NO WARRANTY
+* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
+* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
+* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
+* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
+* solely responsible for determining the appropriateness of using and
+* distributing the Program and assumes all risks associated with its
+* exercise of rights under this Agreement, including but not limited to
+* the risks and costs of program errors, damage to or loss of data,
+* programs or equipment, and unavailability or interruption of operations.
+*
+* DISCLAIMER OF LIABILITY
+* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
+* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
+* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
+* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
+*
+* You should have received a copy of the GNU General Public License
+* along with this program; if not, write to the Free Software
+* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*
+*
+* 10/23/2000 - Alpha Release
+*	First release to the public
+*/
+
+#include <linux/kernel.h>
+#include <linux/mc146818rtc.h>	/* CMOS defines */
+#include "smapi.h"
+#include "mwavedd.h"
+
+static unsigned short g_usSmapiPort = 0;
+
+
+static int smapi_request(unsigned short inBX, unsigned short inCX,
+			 unsigned short inDI, unsigned short inSI,
+			 unsigned short *outAX, unsigned short *outBX,
+			 unsigned short *outCX, unsigned short *outDX,
+			 unsigned short *outDI, unsigned short *outSI)
+{
+	unsigned short myoutAX = 2, *pmyoutAX = &myoutAX;
+	unsigned short myoutBX = 3, *pmyoutBX = &myoutBX;
+	unsigned short myoutCX = 4, *pmyoutCX = &myoutCX;
+	unsigned short myoutDX = 5, *pmyoutDX = &myoutDX;
+	unsigned short myoutDI = 6, *pmyoutDI = &myoutDI;
+	unsigned short myoutSI = 7, *pmyoutSI = &myoutSI;
+	unsigned short usSmapiOK = -EIO, *pusSmapiOK = &usSmapiOK;
+	unsigned int inBXCX = (inBX << 16) | inCX;
+	unsigned int inDISI = (inDI << 16) | inSI;
+	int retval = 0;
+
+	PRINTK_5(TRACE_SMAPI, "inBX %x inCX %x inDI %x inSI %x\n",
+		inBX, inCX, inDI, inSI);
+
+	__asm__ __volatile__("movw  $0x5380,%%ax\n\t"
+			    "movl  %7,%%ebx\n\t"
+			    "shrl  $16, %%ebx\n\t"
+			    "movw  %7,%%cx\n\t"
+			    "movl  %8,%%edi\n\t"
+			    "shrl  $16,%%edi\n\t"
+			    "movw  %8,%%si\n\t"
+			    "movw  %9,%%dx\n\t"
+			    "out   %%al,%%dx\n\t"
+			    "out   %%al,$0x4F\n\t"
+			    "cmpb  $0x53,%%ah\n\t"
+			    "je    2f\n\t"
+			    "1:\n\t"
+			    "orb   %%ah,%%ah\n\t"
+			    "jnz   2f\n\t"
+			    "movw  %%ax,%0\n\t"
+			    "movw  %%bx,%1\n\t"
+			    "movw  %%cx,%2\n\t"
+			    "movw  %%dx,%3\n\t"
+			    "movw  %%di,%4\n\t"
+			    "movw  %%si,%5\n\t"
+			    "movw  $1,%6\n\t"
+			    "2:\n\t":"=m"(*(unsigned short *) pmyoutAX),
+			    "=m"(*(unsigned short *) pmyoutBX),
+			    "=m"(*(unsigned short *) pmyoutCX),
+			    "=m"(*(unsigned short *) pmyoutDX),
+			    "=m"(*(unsigned short *) pmyoutDI),
+			    "=m"(*(unsigned short *) pmyoutSI),
+			    "=m"(*(unsigned short *) pusSmapiOK)
+			    :"m"(inBXCX), "m"(inDISI), "m"(g_usSmapiPort)
+			    :"%eax", "%ebx", "%ecx", "%edx", "%edi",
+			    "%esi");
+
+	PRINTK_8(TRACE_SMAPI,
+		"myoutAX %x myoutBX %x myoutCX %x myoutDX %x myoutDI %x myoutSI %x usSmapiOK %x\n",
+		myoutAX, myoutBX, myoutCX, myoutDX, myoutDI, myoutSI,
+		usSmapiOK);
+	*outAX = myoutAX;
+	*outBX = myoutBX;
+	*outCX = myoutCX;
+	*outDX = myoutDX;
+	*outDI = myoutDI;
+	*outSI = myoutSI;
+
+	retval = (usSmapiOK == 1) ? 0 : -EIO;
+	PRINTK_2(TRACE_SMAPI, "smapi::smapi_request exit retval %x\n", retval);
+	return retval;
+}
+
+
+int smapi_query_DSP_cfg(SMAPI_DSP_SETTINGS * pSettings)
+{
+	int bRC;
+	unsigned short usAX, usBX, usCX, usDX, usDI, usSI;
+	static const unsigned short ausDspBases[] = {
+		0x0030, 0x4E30, 0x8E30, 0xCE30,
+		0x0130, 0x0350, 0x0070, 0x0DB0 };
+	static const unsigned short ausUartBases[] = {
+		0x03F8, 0x02F8, 0x03E8, 0x02E8 };
+
+	PRINTK_1(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg entry\n");
+
+	bRC = smapi_request(0x1802, 0x0000, 0, 0,
+		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+	if (bRC) {
+		PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Error: Could not get DSP Settings. Aborting.\n");
+		return bRC;
+	}
+
+	PRINTK_1(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg, smapi_request OK\n");
+
+	pSettings->bDSPPresent = ((usBX & 0x0100) != 0);
+	pSettings->bDSPEnabled = ((usCX & 0x0001) != 0);
+	pSettings->usDspIRQ = usSI & 0x00FF;
+	pSettings->usDspDMA = (usSI & 0xFF00) >> 8;
+	if ((usDI & 0x00FF) < ARRAY_SIZE(ausDspBases)) {
+		pSettings->usDspBaseIO = ausDspBases[usDI & 0x00FF];
+	} else {
+		pSettings->usDspBaseIO = 0;
+	}
+	PRINTK_6(TRACE_SMAPI,
+		"smapi::smapi_query_DSP_cfg get DSP Settings bDSPPresent %x bDSPEnabled %x usDspIRQ %x usDspDMA %x usDspBaseIO %x\n",
+		pSettings->bDSPPresent, pSettings->bDSPEnabled,
+		pSettings->usDspIRQ, pSettings->usDspDMA,
+		pSettings->usDspBaseIO);
+
+	/* check for illegal values */
+	if ( pSettings->usDspBaseIO == 0 ) 
+		PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Worry: DSP base I/O address is 0\n");
+	if ( pSettings->usDspIRQ == 0 )
+		PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Worry: DSP IRQ line is 0\n");
+
+	bRC = smapi_request(0x1804, 0x0000, 0, 0,
+	   	&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+	if (bRC) {
+		PRINTK_ERROR("smapi::smapi_query_DSP_cfg: Error: Could not get DSP modem settings. Aborting.\n");
+		return bRC;
+	} 
+
+	PRINTK_1(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg, smapi_request OK\n");
+
+	pSettings->bModemEnabled = ((usCX & 0x0001) != 0);
+	pSettings->usUartIRQ = usSI & 0x000F;
+	if (((usSI & 0xFF00) >> 8) < ARRAY_SIZE(ausUartBases)) {
+		pSettings->usUartBaseIO = ausUartBases[(usSI & 0xFF00) >> 8];
+	} else {
+		pSettings->usUartBaseIO = 0;
+	}
+
+	PRINTK_4(TRACE_SMAPI,
+		"smapi::smapi_query_DSP_cfg get DSP modem settings bModemEnabled %x usUartIRQ %x usUartBaseIO %x\n",
+		pSettings->bModemEnabled,
+		pSettings->usUartIRQ,
+		pSettings->usUartBaseIO);
+
+	/* check for illegal values */
+	if ( pSettings->usUartBaseIO == 0 ) 
+		PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Worry: UART base I/O address is 0\n");
+	if ( pSettings->usUartIRQ == 0 )
+		PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_query_DSP_cfg: Worry: UART IRQ line is 0\n");
+
+	PRINTK_2(TRACE_SMAPI, "smapi::smapi_query_DSP_cfg exit bRC %x\n", bRC);
+
+	return bRC;
+}
+
+
+int smapi_set_DSP_cfg(void)
+{
+	int bRC = -EIO;
+	int i;
+	unsigned short usAX, usBX, usCX, usDX, usDI, usSI;
+	static const unsigned short ausDspBases[] = {
+		0x0030, 0x4E30, 0x8E30, 0xCE30,
+		0x0130, 0x0350, 0x0070, 0x0DB0 };
+	static const unsigned short ausUartBases[] = {
+		0x03F8, 0x02F8, 0x03E8, 0x02E8 };
+	static const unsigned short ausDspIrqs[] = {
+		5, 7, 10, 11, 15 };
+	static const unsigned short ausUartIrqs[] = {
+		3, 4 };
+
+	unsigned short dspio_index = 0, uartio_index = 0;
+
+	PRINTK_5(TRACE_SMAPI,
+		"smapi::smapi_set_DSP_cfg entry mwave_3780i_irq %x mwave_3780i_io %x mwave_uart_irq %x mwave_uart_io %x\n",
+		mwave_3780i_irq, mwave_3780i_io, mwave_uart_irq, mwave_uart_io);
+
+	if (mwave_3780i_io) {
+		for (i = 0; i < ARRAY_SIZE(ausDspBases); i++) {
+			if (mwave_3780i_io == ausDspBases[i])
+				break;
+		}
+		if (i == ARRAY_SIZE(ausDspBases)) {
+			PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_3780i_io address %x. Aborting.\n", mwave_3780i_io);
+			return bRC;
+		}
+		dspio_index = i;
+	}
+
+	if (mwave_3780i_irq) {
+		for (i = 0; i < ARRAY_SIZE(ausDspIrqs); i++) {
+			if (mwave_3780i_irq == ausDspIrqs[i])
+				break;
+		}
+		if (i == ARRAY_SIZE(ausDspIrqs)) {
+			PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_3780i_irq %x. Aborting.\n", mwave_3780i_irq);
+			return bRC;
+		}
+	}
+
+	if (mwave_uart_io) {
+		for (i = 0; i < ARRAY_SIZE(ausUartBases); i++) {
+			if (mwave_uart_io == ausUartBases[i])
+				break;
+		}
+		if (i == ARRAY_SIZE(ausUartBases)) {
+			PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_uart_io address %x. Aborting.\n", mwave_uart_io);
+			return bRC;
+		}
+		uartio_index = i;
+	}
+
+
+	if (mwave_uart_irq) {
+		for (i = 0; i < ARRAY_SIZE(ausUartIrqs); i++) {
+			if (mwave_uart_irq == ausUartIrqs[i])
+				break;
+		}
+		if (i == ARRAY_SIZE(ausUartIrqs)) {
+			PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg: Error: Invalid mwave_uart_irq %x. Aborting.\n", mwave_uart_irq);
+			return bRC;
+		}
+	}
+
+	if (mwave_uart_irq || mwave_uart_io) {
+
+		/* Check serial port A */
+		bRC = smapi_request(0x1402, 0x0000, 0, 0,
+			&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+		if (bRC) goto exit_smapi_request_error;
+		/* bRC == 0 */
+		if (usBX & 0x0100) {	/* serial port A is present */
+			if (usCX & 1) {	/* serial port is enabled */
+				if ((usSI & 0xFF) == mwave_uart_irq) {
+#ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
+					PRINTK_ERROR(KERN_ERR_MWAVE
+						"smapi::smapi_set_DSP_cfg: Serial port A irq %x conflicts with mwave_uart_irq %x\n", usSI & 0xFF, mwave_uart_irq);
+#else
+					PRINTK_3(TRACE_SMAPI,
+						"smapi::smapi_set_DSP_cfg: Serial port A irq %x conflicts with mwave_uart_irq %x\n", usSI & 0xFF, mwave_uart_irq);
+#endif
+#ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
+					PRINTK_1(TRACE_SMAPI,
+						"smapi::smapi_set_DSP_cfg Disabling conflicting serial port\n");
+					bRC = smapi_request(0x1403, 0x0100, 0, usSI,
+						&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+					if (bRC) goto exit_smapi_request_error;
+					bRC = smapi_request(0x1402, 0x0000, 0, 0,
+						&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+					if (bRC) goto exit_smapi_request_error;
+#else
+					goto exit_conflict;
+#endif
+				} else {
+					if ((usSI >> 8) == uartio_index) {
+#ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
+						PRINTK_ERROR(KERN_ERR_MWAVE
+							"smapi::smapi_set_DSP_cfg: Serial port A base I/O address %x conflicts with mwave uart I/O %x\n", ausUartBases[usSI >> 8], ausUartBases[uartio_index]);
+#else
+						PRINTK_3(TRACE_SMAPI,
+							"smapi::smapi_set_DSP_cfg: Serial port A base I/O address %x conflicts with mwave uart I/O %x\n", ausUartBases[usSI >> 8], ausUartBases[uartio_index]);
+#endif
+#ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
+						PRINTK_1(TRACE_SMAPI,
+							"smapi::smapi_set_DSP_cfg Disabling conflicting serial port A\n");
+						bRC = smapi_request (0x1403, 0x0100, 0, usSI,
+							&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+						if (bRC) goto exit_smapi_request_error;
+						bRC = smapi_request (0x1402, 0x0000, 0, 0,
+							&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+						if (bRC) goto exit_smapi_request_error;
+#else
+						goto exit_conflict;
+#endif
+					}
+				}
+			}
+		}
+
+		/* Check serial port B */
+		bRC = smapi_request(0x1404, 0x0000, 0, 0,
+			&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+		if (bRC) goto exit_smapi_request_error;
+		/* bRC == 0 */
+		if (usBX & 0x0100) {	/* serial port B is present */
+			if (usCX & 1) {	/* serial port is enabled */
+				if ((usSI & 0xFF) == mwave_uart_irq) {
+#ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
+					PRINTK_ERROR(KERN_ERR_MWAVE
+						"smapi::smapi_set_DSP_cfg: Serial port B irq %x conflicts with mwave_uart_irq %x\n", usSI & 0xFF, mwave_uart_irq);
+#else
+					PRINTK_3(TRACE_SMAPI,
+						"smapi::smapi_set_DSP_cfg: Serial port B irq %x conflicts with mwave_uart_irq %x\n", usSI & 0xFF, mwave_uart_irq);
+#endif
+#ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
+					PRINTK_1(TRACE_SMAPI,
+						"smapi::smapi_set_DSP_cfg Disabling conflicting serial port B\n");
+					bRC = smapi_request(0x1405, 0x0100, 0, usSI,
+						&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+					if (bRC) goto exit_smapi_request_error;
+					bRC = smapi_request(0x1404, 0x0000, 0, 0,
+						&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+					if (bRC) goto exit_smapi_request_error;
+#else
+					goto exit_conflict;
+#endif
+				} else {
+					if ((usSI >> 8) == uartio_index) {
+#ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
+						PRINTK_ERROR(KERN_ERR_MWAVE
+							"smapi::smapi_set_DSP_cfg: Serial port B base I/O address %x conflicts with mwave uart I/O %x\n", ausUartBases[usSI >> 8], ausUartBases[uartio_index]);
+#else
+						PRINTK_3(TRACE_SMAPI,
+							"smapi::smapi_set_DSP_cfg: Serial port B base I/O address %x conflicts with mwave uart I/O %x\n", ausUartBases[usSI >> 8], ausUartBases[uartio_index]);
+#endif
+#ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
+						PRINTK_1 (TRACE_SMAPI,
+						    "smapi::smapi_set_DSP_cfg Disabling conflicting serial port B\n");
+						bRC = smapi_request (0x1405, 0x0100, 0, usSI,
+							&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+						if (bRC) goto exit_smapi_request_error;
+						bRC = smapi_request (0x1404, 0x0000, 0, 0,
+							&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+						if (bRC) goto exit_smapi_request_error;
+#else
+						goto exit_conflict;
+#endif
+					}
+				}
+			}
+		}
+
+		/* Check IR port */
+		bRC = smapi_request(0x1700, 0x0000, 0, 0,
+			&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+		if (bRC) goto exit_smapi_request_error;
+		bRC = smapi_request(0x1704, 0x0000, 0, 0,
+			&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+		if (bRC) goto exit_smapi_request_error;
+		/* bRC == 0 */
+		if ((usCX & 0xff) != 0xff) { /* IR port not disabled */
+			if ((usCX & 0xff) == mwave_uart_irq) {
+#ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
+				PRINTK_ERROR(KERN_ERR_MWAVE
+					"smapi::smapi_set_DSP_cfg: IR port irq %x conflicts with mwave_uart_irq %x\n", usCX & 0xff, mwave_uart_irq);
+#else
+				PRINTK_3(TRACE_SMAPI,
+					"smapi::smapi_set_DSP_cfg: IR port irq %x conflicts with mwave_uart_irq %x\n", usCX & 0xff, mwave_uart_irq);
+#endif
+#ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
+				PRINTK_1(TRACE_SMAPI,
+					"smapi::smapi_set_DSP_cfg Disabling conflicting IR port\n");
+				bRC = smapi_request(0x1701, 0x0100, 0, 0,
+					&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+				if (bRC) goto exit_smapi_request_error;
+				bRC = smapi_request(0x1700, 0, 0, 0,
+					&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+				if (bRC) goto exit_smapi_request_error;
+				bRC = smapi_request(0x1705, 0x01ff, 0, usSI,
+					&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+				if (bRC) goto exit_smapi_request_error;
+				bRC = smapi_request(0x1704, 0x0000, 0, 0,
+					&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+				if (bRC) goto exit_smapi_request_error;
+#else
+				goto exit_conflict;
+#endif
+			} else {
+				if ((usSI & 0xff) == uartio_index) {
+#ifndef MWAVE_FUTZ_WITH_OTHER_DEVICES
+					PRINTK_ERROR(KERN_ERR_MWAVE
+						"smapi::smapi_set_DSP_cfg: IR port base I/O address %x conflicts with mwave uart I/O %x\n", ausUartBases[usSI & 0xff], ausUartBases[uartio_index]);
+#else
+					PRINTK_3(TRACE_SMAPI,
+						"smapi::smapi_set_DSP_cfg: IR port base I/O address %x conflicts with mwave uart I/O %x\n", ausUartBases[usSI & 0xff], ausUartBases[uartio_index]);
+#endif
+#ifdef MWAVE_FUTZ_WITH_OTHER_DEVICES
+					PRINTK_1(TRACE_SMAPI,
+						"smapi::smapi_set_DSP_cfg Disabling conflicting IR port\n");
+					bRC = smapi_request(0x1701, 0x0100, 0, 0,
+						&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+					if (bRC) goto exit_smapi_request_error;
+					bRC = smapi_request(0x1700, 0, 0, 0,
+						&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+					if (bRC) goto exit_smapi_request_error;
+					bRC = smapi_request(0x1705, 0x01ff, 0, usSI,
+						&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+					if (bRC) goto exit_smapi_request_error;
+					bRC = smapi_request(0x1704, 0x0000, 0, 0,
+						&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+					if (bRC) goto exit_smapi_request_error;
+#else
+					goto exit_conflict;
+#endif
+				}
+			}
+		}
+	}
+
+	bRC = smapi_request(0x1802, 0x0000, 0, 0,
+		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+	if (bRC) goto exit_smapi_request_error;
+
+	if (mwave_3780i_io) {
+		usDI = dspio_index;
+	}
+	if (mwave_3780i_irq) {
+		usSI = (usSI & 0xff00) | mwave_3780i_irq;
+	}
+
+	bRC = smapi_request(0x1803, 0x0101, usDI, usSI,
+		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+	if (bRC) goto exit_smapi_request_error;
+
+	bRC = smapi_request(0x1804, 0x0000, 0, 0,
+		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+	if (bRC) goto exit_smapi_request_error;
+
+	if (mwave_uart_io) {
+		usSI = (usSI & 0x00ff) | (uartio_index << 8);
+	}
+	if (mwave_uart_irq) {
+		usSI = (usSI & 0xff00) | mwave_uart_irq;
+	}
+	bRC = smapi_request(0x1805, 0x0101, 0, usSI,
+		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+	if (bRC) goto exit_smapi_request_error;
+
+	bRC = smapi_request(0x1802, 0x0000, 0, 0,
+		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+	if (bRC) goto exit_smapi_request_error;
+
+	bRC = smapi_request(0x1804, 0x0000, 0, 0,
+		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+	if (bRC) goto exit_smapi_request_error;
+
+/* normal exit: */
+	PRINTK_1(TRACE_SMAPI, "smapi::smapi_set_DSP_cfg exit\n");
+	return 0;
+
+exit_conflict:
+	/* Message has already been printed */
+	return -EIO;
+
+exit_smapi_request_error:
+	PRINTK_ERROR(KERN_ERR_MWAVE "smapi::smapi_set_DSP_cfg exit on smapi_request error bRC %x\n", bRC);
+	return bRC;
+}
+
+
+int smapi_set_DSP_power_state(bool bOn)
+{
+	int bRC;
+	unsigned short usAX, usBX, usCX, usDX, usDI, usSI;
+	unsigned short usPowerFunction;
+
+	PRINTK_2(TRACE_SMAPI, "smapi::smapi_set_DSP_power_state entry bOn %x\n", bOn);
+
+	usPowerFunction = (bOn) ? 1 : 0;
+
+	bRC = smapi_request(0x4901, 0x0000, 0, usPowerFunction,
+		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+
+	PRINTK_2(TRACE_SMAPI, "smapi::smapi_set_DSP_power_state exit bRC %x\n", bRC);
+
+	return bRC;
+}
+
+#if 0
+static int SmapiQuerySystemID(void)
+{
+	int bRC = -EIO;
+	unsigned short usAX = 0xffff, usBX = 0xffff, usCX = 0xffff,
+		usDX = 0xffff, usDI = 0xffff, usSI = 0xffff;
+
+	printk("smapi::SmapiQUerySystemID entry\n");
+	bRC = smapi_request(0x0000, 0, 0, 0,
+		&usAX, &usBX, &usCX, &usDX, &usDI, &usSI);
+
+	if (bRC == 0) {
+		printk("AX=%x, BX=%x, CX=%x, DX=%x, DI=%x, SI=%x\n",
+			usAX, usBX, usCX, usDX, usDI, usSI);
+	} else {
+		printk("smapi::SmapiQuerySystemID smapi_request error\n");
+	}
+
+	return bRC;
+}
+#endif  /*  0  */
+
+int smapi_init(void)
+{
+	int retval = -EIO;
+	unsigned short usSmapiID = 0;
+	unsigned long flags;
+
+	PRINTK_1(TRACE_SMAPI, "smapi::smapi_init entry\n");
+
+	spin_lock_irqsave(&rtc_lock, flags);
+	usSmapiID = CMOS_READ(0x7C);
+	usSmapiID |= (CMOS_READ(0x7D) << 8);
+	spin_unlock_irqrestore(&rtc_lock, flags);
+	PRINTK_2(TRACE_SMAPI, "smapi::smapi_init usSmapiID %x\n", usSmapiID);
+
+	if (usSmapiID == 0x5349) {
+		spin_lock_irqsave(&rtc_lock, flags);
+		g_usSmapiPort = CMOS_READ(0x7E);
+		g_usSmapiPort |= (CMOS_READ(0x7F) << 8);
+		spin_unlock_irqrestore(&rtc_lock, flags);
+		if (g_usSmapiPort == 0) {
+			PRINTK_ERROR("smapi::smapi_init, ERROR unable to read from SMAPI port\n");
+		} else {
+			PRINTK_2(TRACE_SMAPI,
+				"smapi::smapi_init, exit true g_usSmapiPort %x\n",
+				g_usSmapiPort);
+			retval = 0;
+			//SmapiQuerySystemID();
+		}
+	} else {
+		PRINTK_ERROR("smapi::smapi_init, ERROR invalid usSmapiID\n");
+		retval = -ENXIO;
+	}
+
+	return retval;
+}