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, 352 insertions, 0 deletions

diff --git a/drivers/scsi/csiostor/csio_scsi.h b/drivers/scsi/csiostor/csio_scsi.h
new file mode 100644
index 000000000..39dda3c88
--- /dev/null
+++ b/drivers/scsi/csiostor/csio_scsi.h
@@ -0,0 +1,352 @@
+/*
+ * This file is part of the Chelsio FCoE driver for Linux.
+ *
+ * Copyright (c) 2008-2012 Chelsio Communications, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef __CSIO_SCSI_H__
+#define __CSIO_SCSI_H__
+
+#include <linux/spinlock_types.h>
+#include <linux/completion.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/scsi_device.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_eh.h>
+#include <scsi/scsi_tcq.h>
+#include <scsi/fc/fc_fcp.h>
+
+#include "csio_defs.h"
+#include "csio_wr.h"
+
+extern struct scsi_host_template csio_fcoe_shost_template;
+extern struct scsi_host_template csio_fcoe_shost_vport_template;
+
+extern int csio_scsi_eqsize;
+extern int csio_scsi_iqlen;
+extern int csio_scsi_ioreqs;
+extern uint32_t csio_max_scan_tmo;
+extern uint32_t csio_delta_scan_tmo;
+extern int csio_lun_qdepth;
+
+/*
+ **************************** NOTE *******************************
+ * How do we calculate MAX FCoE SCSI SGEs? Here is the math:
+ * Max Egress WR size = 512 bytes
+ * One SCSI egress WR has the following fixed no of bytes:
+ *      48 (sizeof(struct fw_scsi_write[read]_wr)) - FW WR
+ *    + 32 (sizeof(struct fc_fcp_cmnd)) - Immediate FCP_CMD
+ *    ------
+ *      80
+ *    ------
+ * That leaves us with 512 - 96 = 432 bytes for data SGE. Using
+ * struct ulptx_sgl header for the SGE consumes:
+ *	- 4 bytes for cmnd_sge.
+ *	- 12 bytes for the first SGL.
+ * That leaves us with 416 bytes for the remaining SGE pairs. Which is
+ * is 416 / 24 (size(struct ulptx_sge_pair)) = 17 SGE pairs,
+ * or 34 SGEs. Adding the first SGE fetches us 35 SGEs.
+ */
+#define CSIO_SCSI_MAX_SGE		35
+#define CSIO_SCSI_ABRT_TMO_MS		60000
+#define CSIO_SCSI_LUNRST_TMO_MS		60000
+#define CSIO_SCSI_TM_POLL_MS		2000	/* should be less than
+						 * all TM timeouts.
+						 */
+#define CSIO_SCSI_IQ_WRSZ		128
+#define CSIO_SCSI_IQSIZE		(csio_scsi_iqlen * CSIO_SCSI_IQ_WRSZ)
+
+#define	CSIO_MAX_SNS_LEN		128
+#define	CSIO_SCSI_RSP_LEN	(FCP_RESP_WITH_EXT + 4 + CSIO_MAX_SNS_LEN)
+
+/* Reference to scsi_cmnd */
+#define csio_scsi_cmnd(req)		((req)->scratch1)
+
+struct csio_scsi_stats {
+	uint64_t		n_tot_success;	/* Total number of good I/Os */
+	uint32_t		n_rn_nr_error;	/* No. of remote-node-not-
+						 * ready errors
+						 */
+	uint32_t		n_hw_nr_error;	/* No. of hw-module-not-
+						 * ready errors
+						 */
+	uint32_t		n_dmamap_error;	/* No. of DMA map erros */
+	uint32_t		n_unsupp_sge_error; /* No. of too-many-SGes
+						     * errors.
+						     */
+	uint32_t		n_no_req_error;	/* No. of Out-of-ioreqs error */
+	uint32_t		n_busy_error;	/* No. of -EBUSY errors */
+	uint32_t		n_hosterror;	/* No. of FW_HOSTERROR I/O */
+	uint32_t		n_rsperror;	/* No. of response errors */
+	uint32_t		n_autosense;	/* No. of auto sense replies */
+	uint32_t		n_ovflerror;	/* No. of overflow errors */
+	uint32_t		n_unflerror;	/* No. of underflow errors */
+	uint32_t		n_rdev_nr_error;/* No. of rdev not
+						 * ready errors
+						 */
+	uint32_t		n_rdev_lost_error;/* No. of rdev lost errors */
+	uint32_t		n_rdev_logo_error;/* No. of rdev logo errors */
+	uint32_t		n_link_down_error;/* No. of link down errors */
+	uint32_t		n_no_xchg_error; /* No. no exchange error */
+	uint32_t		n_unknown_error;/* No. of unhandled errors */
+	uint32_t		n_aborted;	/* No. of aborted I/Os */
+	uint32_t		n_abrt_timedout; /* No. of abort timedouts */
+	uint32_t		n_abrt_fail;	/* No. of abort failures */
+	uint32_t		n_abrt_dups;	/* No. of duplicate aborts */
+	uint32_t		n_abrt_race_comp; /* No. of aborts that raced
+						   * with completions.
+						   */
+	uint32_t		n_abrt_busy_error;/* No. of abort failures
+						   * due to -EBUSY.
+						   */
+	uint32_t		n_closed;	/* No. of closed I/Os */
+	uint32_t		n_cls_busy_error; /* No. of close failures
+						   * due to -EBUSY.
+						   */
+	uint32_t		n_active;	/* No. of IOs in active_q */
+	uint32_t		n_tm_active;	/* No. of TMs in active_q */
+	uint32_t		n_wcbfn;	/* No. of I/Os in worker
+						 * cbfn q
+						 */
+	uint32_t		n_free_ioreq;	/* No. of freelist entries */
+	uint32_t		n_free_ddp;	/* No. of DDP freelist */
+	uint32_t		n_unaligned;	/* No. of Unaligned SGls */
+	uint32_t		n_inval_cplop;	/* No. invalid CPL op's in IQ */
+	uint32_t		n_inval_scsiop;	/* No. invalid scsi op's in IQ*/
+};
+
+struct csio_scsim {
+	struct csio_hw		*hw;		/* Pointer to HW moduel */
+	uint8_t			max_sge;	/* Max SGE */
+	uint8_t			proto_cmd_len;	/* Proto specific SCSI
+						 * cmd length
+						 */
+	uint16_t		proto_rsp_len;	/* Proto specific SCSI
+						 * response length
+						 */
+	spinlock_t		freelist_lock;	/* Lock for ioreq freelist */
+	struct list_head	active_q;	/* Outstanding SCSI I/Os */
+	struct list_head	ioreq_freelist;	/* Free list of ioreq's */
+	struct list_head	ddp_freelist;	/* DDP descriptor freelist */
+	struct csio_scsi_stats	stats;		/* This module's statistics */
+};
+
+/* State machine defines */
+enum csio_scsi_ev {
+	CSIO_SCSIE_START_IO = 1,		/* Start a regular SCSI IO */
+	CSIO_SCSIE_START_TM,			/* Start a TM IO */
+	CSIO_SCSIE_COMPLETED,			/* IO Completed */
+	CSIO_SCSIE_ABORT,			/* Abort IO */
+	CSIO_SCSIE_ABORTED,			/* IO Aborted */
+	CSIO_SCSIE_CLOSE,			/* Close exchange */
+	CSIO_SCSIE_CLOSED,			/* Exchange closed */
+	CSIO_SCSIE_DRVCLEANUP,			/* Driver wants to manually
+						 * cleanup this I/O.
+						 */
+};
+
+enum csio_scsi_lev {
+	CSIO_LEV_ALL = 1,
+	CSIO_LEV_LNODE,
+	CSIO_LEV_RNODE,
+	CSIO_LEV_LUN,
+};
+
+struct csio_scsi_level_data {
+	enum csio_scsi_lev	level;
+	struct csio_rnode	*rnode;
+	struct csio_lnode	*lnode;
+	uint64_t		oslun;
+};
+
+struct csio_cmd_priv {
+	uint8_t fc_tm_flags;	/* task management flags */
+	uint16_t wr_status;
+};
+
+static inline struct csio_cmd_priv *csio_priv(struct scsi_cmnd *cmd)
+{
+	return scsi_cmd_priv(cmd);
+}
+
+static inline struct csio_ioreq *
+csio_get_scsi_ioreq(struct csio_scsim *scm)
+{
+	struct csio_sm *req;
+
+	if (likely(!list_empty(&scm->ioreq_freelist))) {
+		req = list_first_entry(&scm->ioreq_freelist,
+				       struct csio_sm, sm_list);
+		list_del_init(&req->sm_list);
+		CSIO_DEC_STATS(scm, n_free_ioreq);
+		return (struct csio_ioreq *)req;
+	} else
+		return NULL;
+}
+
+static inline void
+csio_put_scsi_ioreq(struct csio_scsim *scm, struct csio_ioreq *ioreq)
+{
+	list_add_tail(&ioreq->sm.sm_list, &scm->ioreq_freelist);
+	CSIO_INC_STATS(scm, n_free_ioreq);
+}
+
+static inline void
+csio_put_scsi_ioreq_list(struct csio_scsim *scm, struct list_head *reqlist,
+			 int n)
+{
+	list_splice_init(reqlist, &scm->ioreq_freelist);
+	scm->stats.n_free_ioreq += n;
+}
+
+static inline struct csio_dma_buf *
+csio_get_scsi_ddp(struct csio_scsim *scm)
+{
+	struct csio_dma_buf *ddp;
+
+	if (likely(!list_empty(&scm->ddp_freelist))) {
+		ddp = list_first_entry(&scm->ddp_freelist,
+				       struct csio_dma_buf, list);
+		list_del_init(&ddp->list);
+		CSIO_DEC_STATS(scm, n_free_ddp);
+		return ddp;
+	} else
+		return NULL;
+}
+
+static inline void
+csio_put_scsi_ddp(struct csio_scsim *scm, struct csio_dma_buf *ddp)
+{
+	list_add_tail(&ddp->list, &scm->ddp_freelist);
+	CSIO_INC_STATS(scm, n_free_ddp);
+}
+
+static inline void
+csio_put_scsi_ddp_list(struct csio_scsim *scm, struct list_head *reqlist,
+			 int n)
+{
+	list_splice_tail_init(reqlist, &scm->ddp_freelist);
+	scm->stats.n_free_ddp += n;
+}
+
+static inline void
+csio_scsi_completed(struct csio_ioreq *ioreq, struct list_head *cbfn_q)
+{
+	csio_post_event(&ioreq->sm, CSIO_SCSIE_COMPLETED);
+	if (csio_list_deleted(&ioreq->sm.sm_list))
+		list_add_tail(&ioreq->sm.sm_list, cbfn_q);
+}
+
+static inline void
+csio_scsi_aborted(struct csio_ioreq *ioreq, struct list_head *cbfn_q)
+{
+	csio_post_event(&ioreq->sm, CSIO_SCSIE_ABORTED);
+	list_add_tail(&ioreq->sm.sm_list, cbfn_q);
+}
+
+static inline void
+csio_scsi_closed(struct csio_ioreq *ioreq, struct list_head *cbfn_q)
+{
+	csio_post_event(&ioreq->sm, CSIO_SCSIE_CLOSED);
+	list_add_tail(&ioreq->sm.sm_list, cbfn_q);
+}
+
+static inline void
+csio_scsi_drvcleanup(struct csio_ioreq *ioreq)
+{
+	csio_post_event(&ioreq->sm, CSIO_SCSIE_DRVCLEANUP);
+}
+
+/*
+ * csio_scsi_start_io - Kick starts the IO SM.
+ * @req: io request SM.
+ *
+ * needs to be called with lock held.
+ */
+static inline int
+csio_scsi_start_io(struct csio_ioreq *ioreq)
+{
+	csio_post_event(&ioreq->sm, CSIO_SCSIE_START_IO);
+	return ioreq->drv_status;
+}
+
+/*
+ * csio_scsi_start_tm - Kicks off the Task management IO SM.
+ * @req: io request SM.
+ *
+ * needs to be called with lock held.
+ */
+static inline int
+csio_scsi_start_tm(struct csio_ioreq *ioreq)
+{
+	csio_post_event(&ioreq->sm, CSIO_SCSIE_START_TM);
+	return ioreq->drv_status;
+}
+
+/*
+ * csio_scsi_abort - Abort an IO request
+ * @req: io request SM.
+ *
+ * needs to be called with lock held.
+ */
+static inline int
+csio_scsi_abort(struct csio_ioreq *ioreq)
+{
+	csio_post_event(&ioreq->sm, CSIO_SCSIE_ABORT);
+	return ioreq->drv_status;
+}
+
+/*
+ * csio_scsi_close - Close an IO request
+ * @req: io request SM.
+ *
+ * needs to be called with lock held.
+ */
+static inline int
+csio_scsi_close(struct csio_ioreq *ioreq)
+{
+	csio_post_event(&ioreq->sm, CSIO_SCSIE_CLOSE);
+	return ioreq->drv_status;
+}
+
+void csio_scsi_cleanup_io_q(struct csio_scsim *, struct list_head *);
+int csio_scsim_cleanup_io(struct csio_scsim *, bool abort);
+int csio_scsim_cleanup_io_lnode(struct csio_scsim *,
+					  struct csio_lnode *);
+struct csio_ioreq *csio_scsi_cmpl_handler(struct csio_hw *, void *, uint32_t,
+					  struct csio_fl_dma_buf *,
+					  void *, uint8_t **);
+int csio_scsi_qconfig(struct csio_hw *);
+int csio_scsim_init(struct csio_scsim *, struct csio_hw *);
+void csio_scsim_exit(struct csio_scsim *);
+
+#endif /* __CSIO_SCSI_H__ */