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, 644 insertions, 0 deletions

diff --git a/drivers/scsi/qlogicfas408.c b/drivers/scsi/qlogicfas408.c
new file mode 100644
index 000000000..3e065d5fc
--- /dev/null
+++ b/drivers/scsi/qlogicfas408.c
@@ -0,0 +1,644 @@
+/*----------------------------------------------------------------*/
+/*
+   Qlogic linux driver - work in progress. No Warranty express or implied.
+   Use at your own risk.  Support Tort Reform so you won't have to read all
+   these silly disclaimers.
+
+   Copyright 1994, Tom Zerucha.
+   tz@execpc.com
+
+   Additional Code, and much appreciated help by
+   Michael A. Griffith
+   grif@cs.ucr.edu
+
+   Thanks to Eric Youngdale and Dave Hinds for loadable module and PCMCIA
+   help respectively, and for suffering through my foolishness during the
+   debugging process.
+
+   Reference Qlogic FAS408 Technical Manual, 53408-510-00A, May 10, 1994
+   (you can reference it, but it is incomplete and inaccurate in places)
+
+   Version 0.46 1/30/97 - kernel 1.2.0+
+
+   Functions as standalone, loadable, and PCMCIA driver, the latter from
+   Dave Hinds' PCMCIA package.
+
+   Cleaned up 26/10/2002 by Alan Cox <alan@lxorguk.ukuu.org.uk> as part of the 2.5
+   SCSI driver cleanup and audit. This driver still needs work on the
+   following
+	-	Non terminating hardware waits
+	-	Some layering violations with its pcmcia stub
+
+   Redistributable under terms of the GNU General Public License
+
+   For the avoidance of doubt the "preferred form" of this code is one which
+   is in an open non patent encumbered format. Where cryptographic key signing
+   forms part of the process of creating an executable the information
+   including keys needed to generate an equivalently functional executable
+   are deemed to be part of the source code.
+
+*/
+
+#include <linux/module.h>
+#include <linux/blkdev.h>		/* to get disk capacity */
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/ioport.h>
+#include <linux/proc_fs.h>
+#include <linux/unistd.h>
+#include <linux/spinlock.h>
+#include <linux/stat.h>
+
+#include <asm/io.h>
+#include <asm/irq.h>
+#include <asm/dma.h>
+
+#include <scsi/scsi.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_eh.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_tcq.h>
+#include "qlogicfas408.h"
+
+/*----------------------------------------------------------------*/
+static int qlcfg5 = (XTALFREQ << 5);	/* 15625/512 */
+static int qlcfg6 = SYNCXFRPD;
+static int qlcfg7 = SYNCOFFST;
+static int qlcfg8 = (SLOWCABLE << 7) | (QL_ENABLE_PARITY << 4);
+static int qlcfg9 = ((XTALFREQ + 4) / 5);
+static int qlcfgc = (FASTCLK << 3) | (FASTSCSI << 4);
+
+/*----------------------------------------------------------------*/
+
+/*----------------------------------------------------------------*/
+/* local functions */
+/*----------------------------------------------------------------*/
+
+/* error recovery - reset everything */
+
+static void ql_zap(struct qlogicfas408_priv *priv)
+{
+	int x;
+	int qbase = priv->qbase;
+	int int_type = priv->int_type;
+
+	x = inb(qbase + 0xd);
+	REG0;
+	outb(3, qbase + 3);	/* reset SCSI */
+	outb(2, qbase + 3);	/* reset chip */
+	if (x & 0x80)
+		REG1;
+}
+
+/*
+ *	Do a pseudo-dma tranfer
+ */
+
+static int ql_pdma(struct qlogicfas408_priv *priv, int phase, char *request,
+		   int reqlen)
+{
+	int j;
+	int qbase = priv->qbase;
+	j = 0;
+	if (phase & 1) {	/* in */
+#if QL_TURBO_PDMA
+		rtrc(4)
+		/* empty fifo in large chunks */
+		if (reqlen >= 128 && (inb(qbase + 8) & 2)) {	/* full */
+			insl(qbase + 4, request, 32);
+			reqlen -= 128;
+			request += 128;
+		}
+		while (reqlen >= 84 && !(j & 0xc0))	/* 2/3 */
+			if ((j = inb(qbase + 8)) & 4)
+			{
+				insl(qbase + 4, request, 21);
+				reqlen -= 84;
+				request += 84;
+			}
+		if (reqlen >= 44 && (inb(qbase + 8) & 8)) {	/* 1/3 */
+			insl(qbase + 4, request, 11);
+			reqlen -= 44;
+			request += 44;
+		}
+#endif
+		/* until both empty and int (or until reclen is 0) */
+		rtrc(7)
+		j = 0;
+		while (reqlen && !((j & 0x10) && (j & 0xc0)))
+		{
+			/* while bytes to receive and not empty */
+			j &= 0xc0;
+			while (reqlen && !((j = inb(qbase + 8)) & 0x10))
+			{
+				*request++ = inb(qbase + 4);
+				reqlen--;
+			}
+			if (j & 0x10)
+				j = inb(qbase + 8);
+
+		}
+	} else {		/* out */
+#if QL_TURBO_PDMA
+		rtrc(4)
+		if (reqlen >= 128 && inb(qbase + 8) & 0x10) {	/* empty */
+			outsl(qbase + 4, request, 32);
+			reqlen -= 128;
+			request += 128;
+		}
+		while (reqlen >= 84 && !(j & 0xc0))	/* 1/3 */
+			if (!((j = inb(qbase + 8)) & 8)) {
+				outsl(qbase + 4, request, 21);
+				reqlen -= 84;
+				request += 84;
+			}
+		if (reqlen >= 40 && !(inb(qbase + 8) & 4)) {	/* 2/3 */
+			outsl(qbase + 4, request, 10);
+			reqlen -= 40;
+			request += 40;
+		}
+#endif
+		/* until full and int (or until reclen is 0) */
+		rtrc(7)
+		    j = 0;
+		while (reqlen && !((j & 2) && (j & 0xc0))) {
+			/* while bytes to send and not full */
+			while (reqlen && !((j = inb(qbase + 8)) & 2))
+			{
+				outb(*request++, qbase + 4);
+				reqlen--;
+			}
+			if (j & 2)
+				j = inb(qbase + 8);
+		}
+	}
+	/* maybe return reqlen */
+	return inb(qbase + 8) & 0xc0;
+}
+
+/*
+ *	Wait for interrupt flag (polled - not real hardware interrupt)
+ */
+
+static int ql_wai(struct qlogicfas408_priv *priv)
+{
+	int k;
+	int qbase = priv->qbase;
+	unsigned long i;
+
+	k = 0;
+	i = jiffies + WATCHDOG;
+	while (time_before(jiffies, i) && !priv->qabort &&
+					!((k = inb(qbase + 4)) & 0xe0)) {
+		barrier();
+		cpu_relax();
+	}
+	if (time_after_eq(jiffies, i))
+		return (DID_TIME_OUT);
+	if (priv->qabort)
+		return (priv->qabort == 1 ? DID_ABORT : DID_RESET);
+	if (k & 0x60)
+		ql_zap(priv);
+	if (k & 0x20)
+		return (DID_PARITY);
+	if (k & 0x40)
+		return (DID_ERROR);
+	return 0;
+}
+
+/*
+ *	Initiate scsi command - queueing handler
+ *	caller must hold host lock
+ */
+
+static void ql_icmd(struct scsi_cmnd *cmd)
+{
+	struct qlogicfas408_priv *priv = get_priv_by_cmd(cmd);
+	int	qbase = priv->qbase;
+	int	int_type = priv->int_type;
+	unsigned int i;
+
+	priv->qabort = 0;
+
+	REG0;
+	/* clearing of interrupts and the fifo is needed */
+
+	inb(qbase + 5);		/* clear interrupts */
+	if (inb(qbase + 5))	/* if still interrupting */
+		outb(2, qbase + 3);	/* reset chip */
+	else if (inb(qbase + 7) & 0x1f)
+		outb(1, qbase + 3);	/* clear fifo */
+	while (inb(qbase + 5));	/* clear ints */
+	REG1;
+	outb(1, qbase + 8);	/* set for PIO pseudo DMA */
+	outb(0, qbase + 0xb);	/* disable ints */
+	inb(qbase + 8);		/* clear int bits */
+	REG0;
+	outb(0x40, qbase + 0xb);	/* enable features */
+
+	/* configurables */
+	outb(qlcfgc, qbase + 0xc);
+	/* config: no reset interrupt, (initiator) bus id */
+	outb(0x40 | qlcfg8 | priv->qinitid, qbase + 8);
+	outb(qlcfg7, qbase + 7);
+	outb(qlcfg6, qbase + 6);
+	outb(qlcfg5, qbase + 5);	/* select timer */
+	outb(qlcfg9 & 7, qbase + 9);	/* prescaler */
+/*	outb(0x99, qbase + 5);	*/
+	outb(scmd_id(cmd), qbase + 4);
+
+	for (i = 0; i < cmd->cmd_len; i++)
+		outb(cmd->cmnd[i], qbase + 2);
+
+	priv->qlcmd = cmd;
+	outb(0x41, qbase + 3);	/* select and send command */
+}
+
+/*
+ *	Process scsi command - usually after interrupt
+ */
+
+static void ql_pcmd(struct scsi_cmnd *cmd)
+{
+	unsigned int i, j;
+	unsigned long k;
+	unsigned int status;	/* scsi returned status */
+	unsigned int message;	/* scsi returned message */
+	unsigned int phase;	/* recorded scsi phase */
+	unsigned int reqlen;	/* total length of transfer */
+	char *buf;
+	struct qlogicfas408_priv *priv = get_priv_by_cmd(cmd);
+	int qbase = priv->qbase;
+	int int_type = priv->int_type;
+
+	rtrc(1)
+	j = inb(qbase + 6);
+	i = inb(qbase + 5);
+	if (i == 0x20) {
+		set_host_byte(cmd, DID_NO_CONNECT);
+		return;
+	}
+	i |= inb(qbase + 5);	/* the 0x10 bit can be set after the 0x08 */
+	if (i != 0x18) {
+		printk(KERN_ERR "Ql:Bad Interrupt status:%02x\n", i);
+		ql_zap(priv);
+		set_host_byte(cmd, DID_BAD_INTR);
+		return;
+	}
+	j &= 7;			/* j = inb( qbase + 7 ) >> 5; */
+
+	/* correct status is supposed to be step 4 */
+	/* it sometimes returns step 3 but with 0 bytes left to send */
+	/* We can try stuffing the FIFO with the max each time, but we will get a
+	   sequence of 3 if any bytes are left (but we do flush the FIFO anyway */
+
+	if (j != 3 && j != 4) {
+		printk(KERN_ERR "Ql:Bad sequence for command %d, int %02X, cmdleft = %d\n",
+		     j, i, inb(qbase + 7) & 0x1f);
+		ql_zap(priv);
+		set_host_byte(cmd, DID_ERROR);
+		return;
+	}
+
+	if (inb(qbase + 7) & 0x1f)	/* if some bytes in fifo */
+		outb(1, qbase + 3);	/* clear fifo */
+	/* note that request_bufflen is the total xfer size when sg is used */
+	reqlen = scsi_bufflen(cmd);
+	/* note that it won't work if transfers > 16M are requested */
+	if (reqlen && !((phase = inb(qbase + 4)) & 6)) {	/* data phase */
+		struct scatterlist *sg;
+		rtrc(2)
+		outb(reqlen, qbase);	/* low-mid xfer cnt */
+		outb(reqlen >> 8, qbase + 1);	/* low-mid xfer cnt */
+		outb(reqlen >> 16, qbase + 0xe);	/* high xfer cnt */
+		outb(0x90, qbase + 3);	/* command do xfer */
+		/* PIO pseudo DMA to buffer or sglist */
+		REG1;
+
+		scsi_for_each_sg(cmd, sg, scsi_sg_count(cmd), i) {
+			if (priv->qabort) {
+				REG0;
+				set_host_byte(cmd,
+					      priv->qabort == 1 ?
+					      DID_ABORT : DID_RESET);
+			}
+			buf = sg_virt(sg);
+			if (ql_pdma(priv, phase, buf, sg->length))
+				break;
+		}
+		REG0;
+		rtrc(2);
+		/*
+		 *	Wait for irq (split into second state of irq handler
+		 *	if this can take time)
+		 */
+		if ((k = ql_wai(priv))) {
+			set_host_byte(cmd, k);
+			return;
+		}
+		k = inb(qbase + 5);	/* should be 0x10, bus service */
+	}
+
+	/*
+	 *	Enter Status (and Message In) Phase
+	 */
+
+	k = jiffies + WATCHDOG;
+
+	while (time_before(jiffies, k) && !priv->qabort &&
+						!(inb(qbase + 4) & 6))
+		cpu_relax();	/* wait for status phase */
+
+	if (time_after_eq(jiffies, k)) {
+		ql_zap(priv);
+		set_host_byte(cmd, DID_TIME_OUT);
+		return;
+	}
+
+	/* FIXME: timeout ?? */
+	while (inb(qbase + 5))
+		cpu_relax();	/* clear pending ints */
+
+	if (priv->qabort) {
+		set_host_byte(cmd,
+			      priv->qabort == 1 ? DID_ABORT : DID_RESET);
+		return;
+	}
+
+	outb(0x11, qbase + 3);	/* get status and message */
+	if ((k = ql_wai(priv))) {
+		set_host_byte(cmd, k);
+		return;
+	}
+	i = inb(qbase + 5);	/* get chip irq stat */
+	j = inb(qbase + 7) & 0x1f;	/* and bytes rec'd */
+	status = inb(qbase + 2);
+	message = inb(qbase + 2);
+
+	/*
+	 *	Should get function complete int if Status and message, else
+	 *	bus serv if only status
+	 */
+	if (!((i == 8 && j == 2) || (i == 0x10 && j == 1))) {
+		printk(KERN_ERR "Ql:Error during status phase, int=%02X, %d bytes recd\n", i, j);
+		set_host_byte(cmd, DID_ERROR);
+	}
+	outb(0x12, qbase + 3);	/* done, disconnect */
+	rtrc(1);
+	if ((k = ql_wai(priv))) {
+		set_host_byte(cmd, k);
+		return;
+	}
+
+	/*
+	 *	Should get bus service interrupt and disconnect interrupt
+	 */
+
+	i = inb(qbase + 5);	/* should be bus service */
+	while (!priv->qabort && ((i & 0x20) != 0x20)) {
+		barrier();
+		cpu_relax();
+		i |= inb(qbase + 5);
+	}
+	rtrc(0);
+
+	if (priv->qabort) {
+		set_host_byte(cmd,
+			      priv->qabort == 1 ? DID_ABORT : DID_RESET);
+		return;
+	}
+
+	set_host_byte(cmd, DID_OK);
+	if (message != COMMAND_COMPLETE)
+		scsi_msg_to_host_byte(cmd, message);
+	set_status_byte(cmd, status);
+	return;
+}
+
+/*
+ *	Interrupt handler
+ */
+
+static void ql_ihandl(void *dev_id)
+{
+	struct scsi_cmnd *icmd;
+	struct Scsi_Host *host = dev_id;
+	struct qlogicfas408_priv *priv = get_priv_by_host(host);
+	int qbase = priv->qbase;
+	REG0;
+
+	if (!(inb(qbase + 4) & 0x80))	/* false alarm? */
+		return;
+
+	if (priv->qlcmd == NULL) {	/* no command to process? */
+		int i;
+		i = 16;
+		while (i-- && inb(qbase + 5));	/* maybe also ql_zap() */
+		return;
+	}
+	icmd = priv->qlcmd;
+	ql_pcmd(icmd);
+	priv->qlcmd = NULL;
+	/*
+	 *	If result is CHECK CONDITION done calls qcommand to request
+	 *	sense
+	 */
+	scsi_done(icmd);
+}
+
+irqreturn_t qlogicfas408_ihandl(int irq, void *dev_id)
+{
+	unsigned long flags;
+	struct Scsi_Host *host = dev_id;
+
+	spin_lock_irqsave(host->host_lock, flags);
+	ql_ihandl(dev_id);
+	spin_unlock_irqrestore(host->host_lock, flags);
+	return IRQ_HANDLED;
+}
+
+/*
+ *	Queued command
+ */
+
+static int qlogicfas408_queuecommand_lck(struct scsi_cmnd *cmd)
+{
+	void (*done)(struct scsi_cmnd *) = scsi_done;
+	struct qlogicfas408_priv *priv = get_priv_by_cmd(cmd);
+
+	set_host_byte(cmd, DID_OK);
+	set_status_byte(cmd, SAM_STAT_GOOD);
+	if (scmd_id(cmd) == priv->qinitid) {
+		set_host_byte(cmd, DID_BAD_TARGET);
+		done(cmd);
+		return 0;
+	}
+
+	/* wait for the last command's interrupt to finish */
+	while (priv->qlcmd != NULL) {
+		barrier();
+		cpu_relax();
+	}
+	ql_icmd(cmd);
+	return 0;
+}
+
+DEF_SCSI_QCMD(qlogicfas408_queuecommand)
+
+/*
+ *	Return bios parameters
+ */
+
+int qlogicfas408_biosparam(struct scsi_device *disk, struct block_device *dev,
+			   sector_t capacity, int ip[])
+{
+/* This should mimic the DOS Qlogic driver's behavior exactly */
+	ip[0] = 0x40;
+	ip[1] = 0x20;
+	ip[2] = (unsigned long) capacity / (ip[0] * ip[1]);
+	if (ip[2] > 1024) {
+		ip[0] = 0xff;
+		ip[1] = 0x3f;
+		ip[2] = (unsigned long) capacity / (ip[0] * ip[1]);
+#if 0
+		if (ip[2] > 1023)
+			ip[2] = 1023;
+#endif
+	}
+	return 0;
+}
+
+/*
+ *	Abort a command in progress
+ */
+
+int qlogicfas408_abort(struct scsi_cmnd *cmd)
+{
+	struct qlogicfas408_priv *priv = get_priv_by_cmd(cmd);
+	priv->qabort = 1;
+	ql_zap(priv);
+	return SUCCESS;
+}
+
+/*
+ *	Reset SCSI bus
+ *	FIXME: This function is invoked with cmd = NULL directly by
+ *	the PCMCIA qlogic_stub code. This wants fixing
+ */
+
+int qlogicfas408_host_reset(struct scsi_cmnd *cmd)
+{
+	struct qlogicfas408_priv *priv = get_priv_by_cmd(cmd);
+	unsigned long flags;
+
+	priv->qabort = 2;
+
+	spin_lock_irqsave(cmd->device->host->host_lock, flags);
+	ql_zap(priv);
+	spin_unlock_irqrestore(cmd->device->host->host_lock, flags);
+
+	return SUCCESS;
+}
+
+/*
+ *	Return info string
+ */
+
+const char *qlogicfas408_info(struct Scsi_Host *host)
+{
+	struct qlogicfas408_priv *priv = get_priv_by_host(host);
+	return priv->qinfo;
+}
+
+/*
+ *	Get type of chip
+ */
+
+int qlogicfas408_get_chip_type(int qbase, int int_type)
+{
+	REG1;
+	return inb(qbase + 0xe) & 0xf8;
+}
+
+/*
+ *	Perform initialization tasks
+ */
+
+void qlogicfas408_setup(int qbase, int id, int int_type)
+{
+	outb(1, qbase + 8);	/* set for PIO pseudo DMA */
+	REG0;
+	outb(0x40 | qlcfg8 | id, qbase + 8);	/* (ini) bus id, disable scsi rst */
+	outb(qlcfg5, qbase + 5);	/* select timer */
+	outb(qlcfg9, qbase + 9);	/* prescaler */
+
+#if QL_RESET_AT_START
+	outb(3, qbase + 3);
+
+	REG1;
+	/* FIXME: timeout */
+	while (inb(qbase + 0xf) & 4)
+		cpu_relax();
+
+	REG0;
+#endif
+}
+
+/*
+ *	Checks if this is a QLogic FAS 408
+ */
+
+int qlogicfas408_detect(int qbase, int int_type)
+{
+	REG1;
+	return (((inb(qbase + 0xe) ^ inb(qbase + 0xe)) == 7) &&
+		((inb(qbase + 0xe) ^ inb(qbase + 0xe)) == 7));
+}
+
+/*
+ *	Disable interrupts
+ */
+
+void qlogicfas408_disable_ints(struct qlogicfas408_priv *priv)
+{
+	int qbase = priv->qbase;
+	int int_type = priv->int_type;
+
+	REG1;
+	outb(0, qbase + 0xb);	/* disable ints */
+}
+
+/*
+ *	Init and exit functions
+ */
+
+static int __init qlogicfas408_init(void)
+{
+	return 0;
+}
+
+static void __exit qlogicfas408_exit(void)
+{
+
+}
+
+MODULE_AUTHOR("Tom Zerucha, Michael Griffith");
+MODULE_DESCRIPTION("Driver for the Qlogic FAS SCSI controllers");
+MODULE_LICENSE("GPL");
+module_init(qlogicfas408_init);
+module_exit(qlogicfas408_exit);
+
+EXPORT_SYMBOL(qlogicfas408_info);
+EXPORT_SYMBOL(qlogicfas408_queuecommand);
+EXPORT_SYMBOL(qlogicfas408_abort);
+EXPORT_SYMBOL(qlogicfas408_host_reset);
+EXPORT_SYMBOL(qlogicfas408_biosparam);
+EXPORT_SYMBOL(qlogicfas408_ihandl);
+EXPORT_SYMBOL(qlogicfas408_get_chip_type);
+EXPORT_SYMBOL(qlogicfas408_setup);
+EXPORT_SYMBOL(qlogicfas408_detect);
+EXPORT_SYMBOL(qlogicfas408_disable_ints);
+