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, 578 insertions, 0 deletions

diff --git a/drivers/usb/storage/freecom.c b/drivers/usb/storage/freecom.c
new file mode 100644
index 000000000..2b098b55c
--- /dev/null
+++ b/drivers/usb/storage/freecom.c
@@ -0,0 +1,578 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Driver for Freecom USB/IDE adaptor
+ *
+ * Freecom v0.1:
+ *
+ * First release
+ *
+ * Current development and maintenance by:
+ *   (C) 2000 David Brown <usb-storage@davidb.org>
+ *
+ * This driver was developed with information provided in FREECOM's USB
+ * Programmers Reference Guide.  For further information contact Freecom
+ * (https://www.freecom.de/)
+ */
+
+#include <linux/module.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_cmnd.h>
+
+#include "usb.h"
+#include "transport.h"
+#include "protocol.h"
+#include "debug.h"
+#include "scsiglue.h"
+
+#define DRV_NAME "ums-freecom"
+
+MODULE_DESCRIPTION("Driver for Freecom USB/IDE adaptor");
+MODULE_AUTHOR("David Brown <usb-storage@davidb.org>");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(USB_STORAGE);
+
+#ifdef CONFIG_USB_STORAGE_DEBUG
+static void pdump(struct us_data *us, void *ibuffer, int length);
+#endif
+
+/* Bits of HD_STATUS */
+#define ERR_STAT		0x01
+#define DRQ_STAT		0x08
+
+/* All of the outgoing packets are 64 bytes long. */
+struct freecom_cb_wrap {
+	u8    Type;		/* Command type. */
+	u8    Timeout;		/* Timeout in seconds. */
+	u8    Atapi[12];	/* An ATAPI packet. */
+	u8    Filler[50];	/* Padding Data. */
+};
+
+struct freecom_xfer_wrap {
+	u8    Type;		/* Command type. */
+	u8    Timeout;		/* Timeout in seconds. */
+	__le32   Count;		/* Number of bytes to transfer. */
+	u8    Pad[58];
+} __attribute__ ((packed));
+
+struct freecom_ide_out {
+	u8    Type;		/* Type + IDE register. */
+	u8    Pad;
+	__le16   Value;		/* Value to write. */
+	u8    Pad2[60];
+};
+
+struct freecom_ide_in {
+	u8    Type;		/* Type | IDE register. */
+	u8    Pad[63];
+};
+
+struct freecom_status {
+	u8    Status;
+	u8    Reason;
+	__le16   Count;
+	u8    Pad[60];
+};
+
+/*
+ * Freecom stuffs the interrupt status in the INDEX_STAT bit of the ide
+ * register.
+ */
+#define FCM_INT_STATUS		0x02 /* INDEX_STAT */
+#define FCM_STATUS_BUSY		0x80
+
+/*
+ * These are the packet types.  The low bit indicates that this command
+ * should wait for an interrupt.
+ */
+#define FCM_PACKET_ATAPI	0x21
+#define FCM_PACKET_STATUS	0x20
+
+/*
+ * Receive data from the IDE interface.  The ATAPI packet has already
+ * waited, so the data should be immediately available.
+ */
+#define FCM_PACKET_INPUT	0x81
+
+/* Send data to the IDE interface. */
+#define FCM_PACKET_OUTPUT	0x01
+
+/*
+ * Write a value to an ide register.  Or the ide register to write after
+ * munging the address a bit.
+ */
+#define FCM_PACKET_IDE_WRITE	0x40
+#define FCM_PACKET_IDE_READ	0xC0
+
+/* All packets (except for status) are 64 bytes long. */
+#define FCM_PACKET_LENGTH		64
+#define FCM_STATUS_PACKET_LENGTH	4
+
+static int init_freecom(struct us_data *us);
+
+
+/*
+ * The table of devices
+ */
+#define UNUSUAL_DEV(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax, \
+		    vendorName, productName, useProtocol, useTransport, \
+		    initFunction, flags) \
+{ USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
+  .driver_info = (flags) }
+
+static struct usb_device_id freecom_usb_ids[] = {
+#	include "unusual_freecom.h"
+	{ }		/* Terminating entry */
+};
+MODULE_DEVICE_TABLE(usb, freecom_usb_ids);
+
+#undef UNUSUAL_DEV
+
+/*
+ * The flags table
+ */
+#define UNUSUAL_DEV(idVendor, idProduct, bcdDeviceMin, bcdDeviceMax, \
+		    vendor_name, product_name, use_protocol, use_transport, \
+		    init_function, Flags) \
+{ \
+	.vendorName = vendor_name,	\
+	.productName = product_name,	\
+	.useProtocol = use_protocol,	\
+	.useTransport = use_transport,	\
+	.initFunction = init_function,	\
+}
+
+static struct us_unusual_dev freecom_unusual_dev_list[] = {
+#	include "unusual_freecom.h"
+	{ }		/* Terminating entry */
+};
+
+#undef UNUSUAL_DEV
+
+static int
+freecom_readdata (struct scsi_cmnd *srb, struct us_data *us,
+		unsigned int ipipe, unsigned int opipe, int count)
+{
+	struct freecom_xfer_wrap *fxfr =
+		(struct freecom_xfer_wrap *) us->iobuf;
+	int result;
+
+	fxfr->Type = FCM_PACKET_INPUT | 0x00;
+	fxfr->Timeout = 0;    /* Short timeout for debugging. */
+	fxfr->Count = cpu_to_le32 (count);
+	memset (fxfr->Pad, 0, sizeof (fxfr->Pad));
+
+	usb_stor_dbg(us, "Read data Freecom! (c=%d)\n", count);
+
+	/* Issue the transfer command. */
+	result = usb_stor_bulk_transfer_buf (us, opipe, fxfr,
+			FCM_PACKET_LENGTH, NULL);
+	if (result != USB_STOR_XFER_GOOD) {
+		usb_stor_dbg(us, "Freecom readdata transport error\n");
+		return USB_STOR_TRANSPORT_ERROR;
+	}
+
+	/* Now transfer all of our blocks. */
+	usb_stor_dbg(us, "Start of read\n");
+	result = usb_stor_bulk_srb(us, ipipe, srb);
+	usb_stor_dbg(us, "freecom_readdata done!\n");
+
+	if (result > USB_STOR_XFER_SHORT)
+		return USB_STOR_TRANSPORT_ERROR;
+	return USB_STOR_TRANSPORT_GOOD;
+}
+
+static int
+freecom_writedata (struct scsi_cmnd *srb, struct us_data *us,
+		int unsigned ipipe, unsigned int opipe, int count)
+{
+	struct freecom_xfer_wrap *fxfr =
+		(struct freecom_xfer_wrap *) us->iobuf;
+	int result;
+
+	fxfr->Type = FCM_PACKET_OUTPUT | 0x00;
+	fxfr->Timeout = 0;    /* Short timeout for debugging. */
+	fxfr->Count = cpu_to_le32 (count);
+	memset (fxfr->Pad, 0, sizeof (fxfr->Pad));
+
+	usb_stor_dbg(us, "Write data Freecom! (c=%d)\n", count);
+
+	/* Issue the transfer command. */
+	result = usb_stor_bulk_transfer_buf (us, opipe, fxfr,
+			FCM_PACKET_LENGTH, NULL);
+	if (result != USB_STOR_XFER_GOOD) {
+		usb_stor_dbg(us, "Freecom writedata transport error\n");
+		return USB_STOR_TRANSPORT_ERROR;
+	}
+
+	/* Now transfer all of our blocks. */
+	usb_stor_dbg(us, "Start of write\n");
+	result = usb_stor_bulk_srb(us, opipe, srb);
+
+	usb_stor_dbg(us, "freecom_writedata done!\n");
+	if (result > USB_STOR_XFER_SHORT)
+		return USB_STOR_TRANSPORT_ERROR;
+	return USB_STOR_TRANSPORT_GOOD;
+}
+
+/*
+ * Transport for the Freecom USB/IDE adaptor.
+ *
+ */
+static int freecom_transport(struct scsi_cmnd *srb, struct us_data *us)
+{
+	struct freecom_cb_wrap *fcb;
+	struct freecom_status  *fst;
+	unsigned int ipipe, opipe;		/* We need both pipes. */
+	int result;
+	unsigned int partial;
+	int length;
+
+	fcb = (struct freecom_cb_wrap *) us->iobuf;
+	fst = (struct freecom_status *) us->iobuf;
+
+	usb_stor_dbg(us, "Freecom TRANSPORT STARTED\n");
+
+	/* Get handles for both transports. */
+	opipe = us->send_bulk_pipe;
+	ipipe = us->recv_bulk_pipe;
+
+	/* The ATAPI Command always goes out first. */
+	fcb->Type = FCM_PACKET_ATAPI | 0x00;
+	fcb->Timeout = 0;
+	memcpy (fcb->Atapi, srb->cmnd, 12);
+	memset (fcb->Filler, 0, sizeof (fcb->Filler));
+
+	US_DEBUG(pdump(us, srb->cmnd, 12));
+
+	/* Send it out. */
+	result = usb_stor_bulk_transfer_buf (us, opipe, fcb,
+			FCM_PACKET_LENGTH, NULL);
+
+	/*
+	 * The Freecom device will only fail if there is something wrong in
+	 * USB land.  It returns the status in its own registers, which
+	 * come back in the bulk pipe.
+	 */
+	if (result != USB_STOR_XFER_GOOD) {
+		usb_stor_dbg(us, "freecom transport error\n");
+		return USB_STOR_TRANSPORT_ERROR;
+	}
+
+	/*
+	 * There are times we can optimize out this status read, but it
+	 * doesn't hurt us to always do it now.
+	 */
+	result = usb_stor_bulk_transfer_buf (us, ipipe, fst,
+			FCM_STATUS_PACKET_LENGTH, &partial);
+	usb_stor_dbg(us, "foo Status result %d %u\n", result, partial);
+	if (result != USB_STOR_XFER_GOOD)
+		return USB_STOR_TRANSPORT_ERROR;
+
+	US_DEBUG(pdump(us, (void *)fst, partial));
+
+	/*
+	 * The firmware will time-out commands after 20 seconds. Some commands
+	 * can legitimately take longer than this, so we use a different
+	 * command that only waits for the interrupt and then sends status,
+	 * without having to send a new ATAPI command to the device.
+	 *
+	 * NOTE: There is some indication that a data transfer after a timeout
+	 * may not work, but that is a condition that should never happen.
+	 */
+	while (fst->Status & FCM_STATUS_BUSY) {
+		usb_stor_dbg(us, "20 second USB/ATAPI bridge TIMEOUT occurred!\n");
+		usb_stor_dbg(us, "fst->Status is %x\n", fst->Status);
+
+		/* Get the status again */
+		fcb->Type = FCM_PACKET_STATUS;
+		fcb->Timeout = 0;
+		memset (fcb->Atapi, 0, sizeof(fcb->Atapi));
+		memset (fcb->Filler, 0, sizeof (fcb->Filler));
+
+		/* Send it out. */
+		result = usb_stor_bulk_transfer_buf (us, opipe, fcb,
+				FCM_PACKET_LENGTH, NULL);
+
+		/*
+		 * The Freecom device will only fail if there is something
+		 * wrong in USB land.  It returns the status in its own
+		 * registers, which come back in the bulk pipe.
+		 */
+		if (result != USB_STOR_XFER_GOOD) {
+			usb_stor_dbg(us, "freecom transport error\n");
+			return USB_STOR_TRANSPORT_ERROR;
+		}
+
+		/* get the data */
+		result = usb_stor_bulk_transfer_buf (us, ipipe, fst,
+				FCM_STATUS_PACKET_LENGTH, &partial);
+
+		usb_stor_dbg(us, "bar Status result %d %u\n", result, partial);
+		if (result != USB_STOR_XFER_GOOD)
+			return USB_STOR_TRANSPORT_ERROR;
+
+		US_DEBUG(pdump(us, (void *)fst, partial));
+	}
+
+	if (partial != 4)
+		return USB_STOR_TRANSPORT_ERROR;
+	if ((fst->Status & 1) != 0) {
+		usb_stor_dbg(us, "operation failed\n");
+		return USB_STOR_TRANSPORT_FAILED;
+	}
+
+	/*
+	 * The device might not have as much data available as we
+	 * requested.  If you ask for more than the device has, this reads
+	 * and such will hang.
+	 */
+	usb_stor_dbg(us, "Device indicates that it has %d bytes available\n",
+		     le16_to_cpu(fst->Count));
+	usb_stor_dbg(us, "SCSI requested %d\n", scsi_bufflen(srb));
+
+	/* Find the length we desire to read. */
+	switch (srb->cmnd[0]) {
+	case INQUIRY:
+	case REQUEST_SENSE:	/* 16 or 18 bytes? spec says 18, lots of devices only have 16 */
+	case MODE_SENSE:
+	case MODE_SENSE_10:
+		length = le16_to_cpu(fst->Count);
+		break;
+	default:
+		length = scsi_bufflen(srb);
+	}
+
+	/* verify that this amount is legal */
+	if (length > scsi_bufflen(srb)) {
+		length = scsi_bufflen(srb);
+		usb_stor_dbg(us, "Truncating request to match buffer length: %d\n",
+			     length);
+	}
+
+	/*
+	 * What we do now depends on what direction the data is supposed to
+	 * move in.
+	 */
+
+	switch (us->srb->sc_data_direction) {
+	case DMA_FROM_DEVICE:
+		/* catch bogus "read 0 length" case */
+		if (!length)
+			break;
+		/*
+		 * Make sure that the status indicates that the device
+		 * wants data as well.
+		 */
+		if ((fst->Status & DRQ_STAT) == 0 || (fst->Reason & 3) != 2) {
+			usb_stor_dbg(us, "SCSI wants data, drive doesn't have any\n");
+			return USB_STOR_TRANSPORT_FAILED;
+		}
+		result = freecom_readdata (srb, us, ipipe, opipe, length);
+		if (result != USB_STOR_TRANSPORT_GOOD)
+			return result;
+
+		usb_stor_dbg(us, "Waiting for status\n");
+		result = usb_stor_bulk_transfer_buf (us, ipipe, fst,
+				FCM_PACKET_LENGTH, &partial);
+		US_DEBUG(pdump(us, (void *)fst, partial));
+
+		if (partial != 4 || result > USB_STOR_XFER_SHORT)
+			return USB_STOR_TRANSPORT_ERROR;
+		if ((fst->Status & ERR_STAT) != 0) {
+			usb_stor_dbg(us, "operation failed\n");
+			return USB_STOR_TRANSPORT_FAILED;
+		}
+		if ((fst->Reason & 3) != 3) {
+			usb_stor_dbg(us, "Drive seems still hungry\n");
+			return USB_STOR_TRANSPORT_FAILED;
+		}
+		usb_stor_dbg(us, "Transfer happy\n");
+		break;
+
+	case DMA_TO_DEVICE:
+		/* catch bogus "write 0 length" case */
+		if (!length)
+			break;
+		/*
+		 * Make sure the status indicates that the device wants to
+		 * send us data.
+		 */
+		/* !!IMPLEMENT!! */
+		result = freecom_writedata (srb, us, ipipe, opipe, length);
+		if (result != USB_STOR_TRANSPORT_GOOD)
+			return result;
+
+		usb_stor_dbg(us, "Waiting for status\n");
+		result = usb_stor_bulk_transfer_buf (us, ipipe, fst,
+				FCM_PACKET_LENGTH, &partial);
+
+		if (partial != 4 || result > USB_STOR_XFER_SHORT)
+			return USB_STOR_TRANSPORT_ERROR;
+		if ((fst->Status & ERR_STAT) != 0) {
+			usb_stor_dbg(us, "operation failed\n");
+			return USB_STOR_TRANSPORT_FAILED;
+		}
+		if ((fst->Reason & 3) != 3) {
+			usb_stor_dbg(us, "Drive seems still hungry\n");
+			return USB_STOR_TRANSPORT_FAILED;
+		}
+
+		usb_stor_dbg(us, "Transfer happy\n");
+		break;
+
+
+	case DMA_NONE:
+		/* Easy, do nothing. */
+		break;
+
+	default:
+		/* should never hit here -- filtered in usb.c */
+		usb_stor_dbg(us, "freecom unimplemented direction: %d\n",
+			     us->srb->sc_data_direction);
+		/* Return fail, SCSI seems to handle this better. */
+		return USB_STOR_TRANSPORT_FAILED;
+	}
+
+	return USB_STOR_TRANSPORT_GOOD;
+}
+
+static int init_freecom(struct us_data *us)
+{
+	int result;
+	char *buffer = us->iobuf;
+
+	/*
+	 * The DMA-mapped I/O buffer is 64 bytes long, just right for
+	 * all our packets.  No need to allocate any extra buffer space.
+	 */
+
+	result = usb_stor_control_msg(us, us->recv_ctrl_pipe,
+			0x4c, 0xc0, 0x4346, 0x0, buffer, 0x20, 3*HZ);
+	buffer[32] = '\0';
+	usb_stor_dbg(us, "String returned from FC init is: %s\n", buffer);
+
+	/*
+	 * Special thanks to the people at Freecom for providing me with
+	 * this "magic sequence", which they use in their Windows and MacOS
+	 * drivers to make sure that all the attached perhiperals are
+	 * properly reset.
+	 */
+
+	/* send reset */
+	result = usb_stor_control_msg(us, us->send_ctrl_pipe,
+			0x4d, 0x40, 0x24d8, 0x0, NULL, 0x0, 3*HZ);
+	usb_stor_dbg(us, "result from activate reset is %d\n", result);
+
+	/* wait 250ms */
+	msleep(250);
+
+	/* clear reset */
+	result = usb_stor_control_msg(us, us->send_ctrl_pipe,
+			0x4d, 0x40, 0x24f8, 0x0, NULL, 0x0, 3*HZ);
+	usb_stor_dbg(us, "result from clear reset is %d\n", result);
+
+	/* wait 3 seconds */
+	msleep(3 * 1000);
+
+	return USB_STOR_TRANSPORT_GOOD;
+}
+
+static int usb_stor_freecom_reset(struct us_data *us)
+{
+	printk (KERN_CRIT "freecom reset called\n");
+
+	/* We don't really have this feature. */
+	return FAILED;
+}
+
+#ifdef CONFIG_USB_STORAGE_DEBUG
+static void pdump(struct us_data *us, void *ibuffer, int length)
+{
+	static char line[80];
+	int offset = 0;
+	unsigned char *buffer = (unsigned char *) ibuffer;
+	int i, j;
+	int from, base;
+
+	offset = 0;
+	for (i = 0; i < length; i++) {
+		if ((i & 15) == 0) {
+			if (i > 0) {
+				offset += sprintf (line+offset, " - ");
+				for (j = i - 16; j < i; j++) {
+					if (buffer[j] >= 32 && buffer[j] <= 126)
+						line[offset++] = buffer[j];
+					else
+						line[offset++] = '.';
+				}
+				line[offset] = 0;
+				usb_stor_dbg(us, "%s\n", line);
+				offset = 0;
+			}
+			offset += sprintf (line+offset, "%08x:", i);
+		} else if ((i & 7) == 0) {
+			offset += sprintf (line+offset, " -");
+		}
+		offset += sprintf (line+offset, " %02x", buffer[i] & 0xff);
+	}
+
+	/* Add the last "chunk" of data. */
+	from = (length - 1) % 16;
+	base = ((length - 1) / 16) * 16;
+
+	for (i = from + 1; i < 16; i++)
+		offset += sprintf (line+offset, "   ");
+	if (from < 8)
+		offset += sprintf (line+offset, "  ");
+	offset += sprintf (line+offset, " - ");
+
+	for (i = 0; i <= from; i++) {
+		if (buffer[base+i] >= 32 && buffer[base+i] <= 126)
+			line[offset++] = buffer[base+i];
+		else
+			line[offset++] = '.';
+	}
+	line[offset] = 0;
+	usb_stor_dbg(us, "%s\n", line);
+	offset = 0;
+}
+#endif
+
+static struct scsi_host_template freecom_host_template;
+
+static int freecom_probe(struct usb_interface *intf,
+			 const struct usb_device_id *id)
+{
+	struct us_data *us;
+	int result;
+
+	result = usb_stor_probe1(&us, intf, id,
+			(id - freecom_usb_ids) + freecom_unusual_dev_list,
+			&freecom_host_template);
+	if (result)
+		return result;
+
+	us->transport_name = "Freecom";
+	us->transport = freecom_transport;
+	us->transport_reset = usb_stor_freecom_reset;
+	us->max_lun = 0;
+
+	result = usb_stor_probe2(us);
+	return result;
+}
+
+static struct usb_driver freecom_driver = {
+	.name =		DRV_NAME,
+	.probe =	freecom_probe,
+	.disconnect =	usb_stor_disconnect,
+	.suspend =	usb_stor_suspend,
+	.resume =	usb_stor_resume,
+	.reset_resume =	usb_stor_reset_resume,
+	.pre_reset =	usb_stor_pre_reset,
+	.post_reset =	usb_stor_post_reset,
+	.id_table =	freecom_usb_ids,
+	.soft_unbind =	1,
+	.no_dynamic_id = 1,
+};
+
+module_usb_stor_driver(freecom_driver, freecom_host_template, DRV_NAME);