2198 lines
58 KiB
C
2198 lines
58 KiB
C
/*-
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* Copyright (c) 2008, 2009 Silicon Graphics International Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*
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* $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/scsi_ctl.c#4 $
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*/
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/*
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* Peripheral driver interface between CAM and CTL (CAM Target Layer).
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*
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* Author: Ken Merry <ken@FreeBSD.org>
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/queue.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/condvar.h>
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#include <sys/malloc.h>
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#include <sys/bus.h>
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#include <sys/endian.h>
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#include <sys/sbuf.h>
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#include <sys/sysctl.h>
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#include <sys/types.h>
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#include <sys/systm.h>
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#include <machine/bus.h>
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#include <cam/cam.h>
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#include <cam/cam_ccb.h>
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#include <cam/cam_periph.h>
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#include <cam/cam_queue.h>
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#include <cam/cam_xpt_periph.h>
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#include <cam/cam_debug.h>
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#include <cam/cam_sim.h>
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#include <cam/cam_xpt.h>
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#include <cam/scsi/scsi_all.h>
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#include <cam/scsi/scsi_message.h>
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#include <cam/ctl/ctl_io.h>
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#include <cam/ctl/ctl.h>
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#include <cam/ctl/ctl_frontend.h>
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#include <cam/ctl/ctl_util.h>
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#include <cam/ctl/ctl_error.h>
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typedef enum {
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CTLFE_CCB_WAITING = 0x01
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} ctlfe_ccb_types;
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struct ctlfe_softc {
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struct ctl_frontend fe;
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path_id_t path_id;
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struct cam_sim *sim;
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char port_name[DEV_IDLEN];
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STAILQ_HEAD(, ctlfe_lun_softc) lun_softc_list;
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STAILQ_ENTRY(ctlfe_softc) links;
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};
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STAILQ_HEAD(, ctlfe_softc) ctlfe_softc_list;
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struct mtx ctlfe_list_mtx;
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static char ctlfe_mtx_desc[] = "ctlfelist";
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static int ctlfe_dma_enabled = 1;
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#ifdef CTLFE_INIT_ENABLE
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static int ctlfe_max_targets = 1;
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static int ctlfe_num_targets = 0;
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#endif
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typedef enum {
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CTLFE_LUN_NONE = 0x00,
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CTLFE_LUN_WILDCARD = 0x01
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} ctlfe_lun_flags;
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struct ctlfe_lun_softc {
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struct ctlfe_softc *parent_softc;
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struct cam_periph *periph;
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ctlfe_lun_flags flags;
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struct callout dma_callout;
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uint64_t ccbs_alloced;
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uint64_t ccbs_freed;
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uint64_t ctios_sent;
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uint64_t ctios_returned;
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uint64_t atios_sent;
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uint64_t atios_returned;
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uint64_t inots_sent;
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uint64_t inots_returned;
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/* bus_dma_tag_t dma_tag; */
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TAILQ_HEAD(, ccb_hdr) work_queue;
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STAILQ_ENTRY(ctlfe_lun_softc) links;
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};
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typedef enum {
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CTLFE_CMD_NONE = 0x00,
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CTLFE_CMD_PIECEWISE = 0x01
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} ctlfe_cmd_flags;
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/*
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* The size limit of this structure is CTL_PORT_PRIV_SIZE, from ctl_io.h.
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* Currently that is 600 bytes.
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*/
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struct ctlfe_lun_cmd_info {
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int cur_transfer_index;
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ctlfe_cmd_flags flags;
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/*
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* XXX KDM struct bus_dma_segment is 8 bytes on i386, and 16
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* bytes on amd64. So with 32 elements, this is 256 bytes on
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* i386 and 512 bytes on amd64.
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*/
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bus_dma_segment_t cam_sglist[32];
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};
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/*
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* When we register the adapter/bus, request that this many ctl_ios be
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* allocated. This should be the maximum supported by the adapter, but we
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* currently don't have a way to get that back from the path inquiry.
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* XXX KDM add that to the path inquiry.
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*/
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#define CTLFE_REQ_CTL_IO 4096
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/*
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* Number of Accept Target I/O CCBs to allocate and queue down to the
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* adapter per LUN.
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* XXX KDM should this be controlled by CTL?
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*/
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#define CTLFE_ATIO_PER_LUN 1024
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/*
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* Number of Immediate Notify CCBs (used for aborts, resets, etc.) to
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* allocate and queue down to the adapter per LUN.
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* XXX KDM should this be controlled by CTL?
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*/
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#define CTLFE_IN_PER_LUN 1024
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/*
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* Timeout (in seconds) on CTIO CCB allocation for doing a DMA or sending
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* status to the initiator. The SIM is expected to have its own timeouts,
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* so we're not putting this timeout around the CCB execution time. The
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* SIM should timeout and let us know if it has an issue.
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*/
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#define CTLFE_DMA_TIMEOUT 60
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/*
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* Turn this on to enable extra debugging prints.
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*/
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#if 0
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#define CTLFE_DEBUG
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#endif
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/*
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* Use randomly assigned WWNN/WWPN values. This is to work around an issue
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* in the FreeBSD initiator that makes it unable to rescan the target if
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* the target gets rebooted and the WWNN/WWPN stay the same.
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*/
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#if 0
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#define RANDOM_WWNN
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#endif
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SYSCTL_INT(_kern_cam_ctl, OID_AUTO, dma_enabled, CTLFLAG_RW,
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&ctlfe_dma_enabled, 0, "DMA enabled");
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MALLOC_DEFINE(M_CTLFE, "CAM CTL FE", "CAM CTL FE interface");
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#define ccb_type ppriv_field0
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/* This is only used in the ATIO */
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#define io_ptr ppriv_ptr1
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/* This is only used in the CTIO */
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#define ccb_atio ppriv_ptr1
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int ctlfeinitialize(void);
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void ctlfeshutdown(void);
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static periph_init_t ctlfeinit;
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static void ctlfeasync(void *callback_arg, uint32_t code,
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struct cam_path *path, void *arg);
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static periph_ctor_t ctlferegister;
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static periph_oninv_t ctlfeoninvalidate;
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static periph_dtor_t ctlfecleanup;
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static periph_start_t ctlfestart;
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static void ctlfedone(struct cam_periph *periph,
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union ccb *done_ccb);
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static void ctlfe_onoffline(void *arg, int online);
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static void ctlfe_online(void *arg);
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static void ctlfe_offline(void *arg);
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static int ctlfe_targ_enable(void *arg, struct ctl_id targ_id);
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static int ctlfe_targ_disable(void *arg, struct ctl_id targ_id);
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static int ctlfe_lun_enable(void *arg, struct ctl_id targ_id,
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int lun_id);
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static int ctlfe_lun_disable(void *arg, struct ctl_id targ_id,
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int lun_id);
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static void ctlfe_dump_sim(struct cam_sim *sim);
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static void ctlfe_dump_queue(struct ctlfe_lun_softc *softc);
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static void ctlfe_dma_timeout(void *arg);
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static void ctlfe_datamove_done(union ctl_io *io);
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static void ctlfe_dump(void);
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static struct periph_driver ctlfe_driver =
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{
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ctlfeinit, "ctl",
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TAILQ_HEAD_INITIALIZER(ctlfe_driver.units), /*generation*/ 0
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};
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PERIPHDRIVER_DECLARE(ctl, ctlfe_driver);
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extern struct ctl_softc *control_softc;
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extern int ctl_disable;
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int
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ctlfeinitialize(void)
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{
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cam_status status;
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/* Don't initialize if we're disabled */
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if (ctl_disable != 0)
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return (0);
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STAILQ_INIT(&ctlfe_softc_list);
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mtx_init(&ctlfe_list_mtx, ctlfe_mtx_desc, NULL, MTX_DEF);
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xpt_lock_buses();
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periphdriver_register(&ctlfe_driver);
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xpt_unlock_buses();
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status = xpt_register_async(AC_PATH_REGISTERED | AC_PATH_DEREGISTERED |
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AC_CONTRACT, ctlfeasync, NULL, NULL);
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if (status != CAM_REQ_CMP) {
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printf("ctl: Failed to attach async callback due to CAM "
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"status 0x%x!\n", status);
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}
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return (0);
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}
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void
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ctlfeshutdown(void)
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{
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return;
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}
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void
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ctlfeinit(void)
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{
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cam_status status;
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/* Don't initialize if we're disabled */
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if (ctl_disable != 0)
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return;
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STAILQ_INIT(&ctlfe_softc_list);
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mtx_init(&ctlfe_list_mtx, ctlfe_mtx_desc, NULL, MTX_DEF);
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KASSERT(control_softc != NULL, ("CTL is not initialized!"));
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status = xpt_register_async(AC_PATH_REGISTERED | AC_PATH_DEREGISTERED |
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AC_CONTRACT, ctlfeasync, NULL, NULL);
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if (status != CAM_REQ_CMP) {
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printf("ctl: Failed to attach async callback due to CAM "
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"status 0x%x!\n", status);
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}
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}
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static void
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ctlfeasync(void *callback_arg, uint32_t code, struct cam_path *path, void *arg)
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{
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#ifdef CTLFEDEBUG
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printf("%s: entered\n", __func__);
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#endif
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/*
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* When a new path gets registered, and it is capable of target
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* mode, go ahead and attach. Later on, we may need to be more
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* selective, but for now this will be sufficient.
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*/
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switch (code) {
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case AC_PATH_REGISTERED: {
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struct ctl_frontend *fe;
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struct ctlfe_softc *bus_softc;
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struct ctlfe_lun_softc *lun_softc;
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struct cam_path *path;
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struct ccb_pathinq *cpi;
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cam_status status;
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int retval;
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cpi = (struct ccb_pathinq *)arg;
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/* Don't attach if it doesn't support target mode */
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if ((cpi->target_sprt & PIT_PROCESSOR) == 0) {
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#ifdef CTLFEDEBUG
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printf("%s: SIM %s%d doesn't support target mode\n",
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__func__, cpi->dev_name, cpi->unit_number);
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#endif
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break;
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}
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#ifdef CTLFE_INIT_ENABLE
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if (ctlfe_num_targets >= ctlfe_max_targets) {
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union ccb *ccb;
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struct cam_sim *sim;
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ccb = (union ccb *)malloc(sizeof(*ccb), M_TEMP,
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M_NOWAIT | M_ZERO);
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if (ccb == NULL) {
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printf("%s: unable to malloc CCB!\n", __func__);
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xpt_free_path(path);
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return;
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}
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xpt_setup_ccb(&ccb->ccb_h, cpi->ccb_h.path,
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CAM_PRIORITY_NONE);
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sim = xpt_path_sim(cpi->ccb_h.path);
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ccb->ccb_h.func_code = XPT_SET_SIM_KNOB;
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ccb->knob.xport_specific.valid = KNOB_VALID_ROLE;
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ccb->knob.xport_specific.fc.role = KNOB_ROLE_INITIATOR;
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/* We should hold the SIM lock here */
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mtx_assert(sim->mtx, MA_OWNED);
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xpt_action(ccb);
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if ((ccb->ccb_h.status & CAM_STATUS_MASK) !=
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CAM_REQ_CMP) {
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printf("%s: SIM %s%d (path id %d) initiator "
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"enable failed with status %#x\n",
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__func__, cpi->dev_name,
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cpi->unit_number, cpi->ccb_h.path_id,
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ccb->ccb_h.status);
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} else {
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printf("%s: SIM %s%d (path id %d) initiator "
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"enable succeeded\n",
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__func__, cpi->dev_name,
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cpi->unit_number, cpi->ccb_h.path_id);
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}
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free(ccb, M_TEMP);
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break;
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} else {
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ctlfe_num_targets++;
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}
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printf("%s: ctlfe_num_targets = %d\n", __func__,
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ctlfe_num_targets);
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#endif /* CTLFE_INIT_ENABLE */
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/*
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* We're in an interrupt context here, so we have to
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* use M_NOWAIT. Of course this means trouble if we
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* can't allocate memory.
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*/
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bus_softc = malloc(sizeof(*bus_softc), M_CTLFE,
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M_NOWAIT | M_ZERO);
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if (bus_softc == NULL) {
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printf("%s: unable to malloc %zd bytes for softc\n",
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__func__, sizeof(*bus_softc));
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return;
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}
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bus_softc->path_id = cpi->ccb_h.path_id;
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bus_softc->sim = xpt_path_sim(cpi->ccb_h.path);
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STAILQ_INIT(&bus_softc->lun_softc_list);
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fe = &bus_softc->fe;
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/*
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* XXX KDM should we be more accurate here ?
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*/
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if (cpi->transport == XPORT_FC)
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fe->port_type = CTL_PORT_FC;
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else
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fe->port_type = CTL_PORT_SCSI;
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/* XXX KDM what should the real number be here? */
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fe->num_requested_ctl_io = 4096;
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snprintf(bus_softc->port_name, sizeof(bus_softc->port_name),
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"%s%d", cpi->dev_name, cpi->unit_number);
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/*
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* XXX KDM it would be nice to allocate storage in the
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* frontend structure itself.
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*/
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fe->port_name = bus_softc->port_name;
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fe->physical_port = cpi->unit_number;
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fe->virtual_port = cpi->bus_id;
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fe->port_online = ctlfe_online;
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fe->port_offline = ctlfe_offline;
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fe->onoff_arg = bus_softc;
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fe->targ_enable = ctlfe_targ_enable;
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fe->targ_disable = ctlfe_targ_disable;
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fe->lun_enable = ctlfe_lun_enable;
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fe->lun_disable = ctlfe_lun_disable;
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fe->targ_lun_arg = bus_softc;
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fe->fe_datamove = ctlfe_datamove_done;
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fe->fe_done = ctlfe_datamove_done;
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fe->fe_dump = ctlfe_dump;
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/*
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* XXX KDM the path inquiry doesn't give us the maximum
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* number of targets supported.
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*/
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fe->max_targets = cpi->max_target;
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fe->max_target_id = cpi->max_target;
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|
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/*
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* XXX KDM need to figure out whether we're the master or
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* slave.
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*/
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#ifdef CTLFEDEBUG
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printf("%s: calling ctl_frontend_register() for %s%d\n",
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__func__, cpi->dev_name, cpi->unit_number);
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#endif
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retval = ctl_frontend_register(fe, /*master_SC*/ 1);
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if (retval != 0) {
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printf("%s: ctl_frontend_register() failed with "
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"error %d!\n", __func__, retval);
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free(bus_softc, M_CTLFE);
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break;
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} else {
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mtx_lock(&ctlfe_list_mtx);
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STAILQ_INSERT_TAIL(&ctlfe_softc_list, bus_softc, links);
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mtx_unlock(&ctlfe_list_mtx);
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}
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status = xpt_create_path(&path, /*periph*/ NULL,
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bus_softc->path_id,CAM_TARGET_WILDCARD,
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CAM_LUN_WILDCARD);
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if (status != CAM_REQ_CMP) {
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printf("%s: unable to create path for wildcard "
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"periph\n", __func__);
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break;
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}
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lun_softc = malloc(sizeof(*lun_softc), M_CTLFE,
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M_NOWAIT | M_ZERO);
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if (lun_softc == NULL) {
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xpt_print(path, "%s: unable to allocate softc for "
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"wildcard periph\n", __func__);
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xpt_free_path(path);
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break;
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}
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lun_softc->parent_softc = bus_softc;
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lun_softc->flags |= CTLFE_LUN_WILDCARD;
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status = cam_periph_alloc(ctlferegister,
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ctlfeoninvalidate,
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ctlfecleanup,
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ctlfestart,
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"ctl",
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CAM_PERIPH_BIO,
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path,
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ctlfeasync,
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0,
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lun_softc);
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xpt_free_path(path);
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break;
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}
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case AC_PATH_DEREGISTERED:
|
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/* ctl_frontend_deregister() */
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break;
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case AC_CONTRACT: {
|
|
struct ac_contract *ac;
|
|
|
|
ac = (struct ac_contract *)arg;
|
|
|
|
switch (ac->contract_number) {
|
|
case AC_CONTRACT_DEV_CHG: {
|
|
struct ac_device_changed *dev_chg;
|
|
struct ctlfe_softc *softc;
|
|
int retval, found;
|
|
|
|
dev_chg = (struct ac_device_changed *)ac->contract_data;
|
|
|
|
printf("%s: WWPN %#jx port 0x%06x path %u target %u %s\n",
|
|
__func__, dev_chg->wwpn, dev_chg->port,
|
|
xpt_path_path_id(path), dev_chg->target,
|
|
(dev_chg->arrived == 0) ? "left" : "arrived");
|
|
|
|
found = 0;
|
|
|
|
mtx_lock(&ctlfe_list_mtx);
|
|
STAILQ_FOREACH(softc, &ctlfe_softc_list, links) {
|
|
if (softc->path_id == xpt_path_path_id(path)) {
|
|
found = 1;
|
|
break;
|
|
}
|
|
}
|
|
mtx_unlock(&ctlfe_list_mtx);
|
|
|
|
if (found == 0) {
|
|
printf("%s: CTL port for CAM path %u not "
|
|
"found!\n", __func__,
|
|
xpt_path_path_id(path));
|
|
break;
|
|
}
|
|
if (dev_chg->arrived != 0) {
|
|
retval = ctl_add_initiator(dev_chg->wwpn,
|
|
softc->fe.targ_port, dev_chg->target);
|
|
} else {
|
|
retval = ctl_remove_initiator(
|
|
softc->fe.targ_port, dev_chg->target);
|
|
}
|
|
|
|
if (retval != 0) {
|
|
printf("%s: could not %s port %d iid %u "
|
|
"WWPN %#jx!\n", __func__,
|
|
(dev_chg->arrived != 0) ? "add" :
|
|
"remove", softc->fe.targ_port,
|
|
dev_chg->target,
|
|
(uintmax_t)dev_chg->wwpn);
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
printf("%s: unsupported contract number %ju\n",
|
|
__func__, (uintmax_t)ac->contract_number);
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static cam_status
|
|
ctlferegister(struct cam_periph *periph, void *arg)
|
|
{
|
|
struct ctlfe_softc *bus_softc;
|
|
struct ctlfe_lun_softc *softc;
|
|
struct cam_sim *sim;
|
|
union ccb en_lun_ccb;
|
|
cam_status status;
|
|
int i;
|
|
|
|
softc = (struct ctlfe_lun_softc *)arg;
|
|
bus_softc = softc->parent_softc;
|
|
sim = xpt_path_sim(periph->path);
|
|
|
|
TAILQ_INIT(&softc->work_queue);
|
|
softc->periph = periph;
|
|
|
|
callout_init_mtx(&softc->dma_callout, sim->mtx, /*flags*/ 0);
|
|
periph->softc = softc;
|
|
|
|
xpt_setup_ccb(&en_lun_ccb.ccb_h, periph->path, CAM_PRIORITY_NONE);
|
|
en_lun_ccb.ccb_h.func_code = XPT_EN_LUN;
|
|
en_lun_ccb.cel.grp6_len = 0;
|
|
en_lun_ccb.cel.grp7_len = 0;
|
|
en_lun_ccb.cel.enable = 1;
|
|
xpt_action(&en_lun_ccb);
|
|
status = (en_lun_ccb.ccb_h.status & CAM_STATUS_MASK);
|
|
if (status != CAM_REQ_CMP) {
|
|
xpt_print(periph->path, "%s: Enable LUN failed, status 0x%x\n",
|
|
__func__, en_lun_ccb.ccb_h.status);
|
|
return (status);
|
|
}
|
|
|
|
status = CAM_REQ_CMP;
|
|
|
|
for (i = 0; i < CTLFE_ATIO_PER_LUN; i++) {
|
|
union ccb *new_ccb;
|
|
|
|
new_ccb = (union ccb *)malloc(sizeof(*new_ccb), M_CTLFE,
|
|
M_ZERO|M_NOWAIT);
|
|
if (new_ccb == NULL) {
|
|
status = CAM_RESRC_UNAVAIL;
|
|
break;
|
|
}
|
|
xpt_setup_ccb(&new_ccb->ccb_h, periph->path, /*priority*/ 1);
|
|
new_ccb->ccb_h.func_code = XPT_ACCEPT_TARGET_IO;
|
|
new_ccb->ccb_h.cbfcnp = ctlfedone;
|
|
xpt_action(new_ccb);
|
|
softc->atios_sent++;
|
|
status = new_ccb->ccb_h.status;
|
|
if ((status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
|
|
free(new_ccb, M_CTLFE);
|
|
break;
|
|
}
|
|
}
|
|
|
|
status = cam_periph_acquire(periph);
|
|
if ((status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
|
|
xpt_print(periph->path, "%s: could not acquire reference "
|
|
"count, status = %#x\n", __func__, status);
|
|
return (status);
|
|
}
|
|
|
|
if (i == 0) {
|
|
xpt_print(periph->path, "%s: could not allocate ATIO CCBs, "
|
|
"status 0x%x\n", __func__, status);
|
|
return (CAM_REQ_CMP_ERR);
|
|
}
|
|
|
|
for (i = 0; i < CTLFE_IN_PER_LUN; i++) {
|
|
union ccb *new_ccb;
|
|
|
|
new_ccb = (union ccb *)malloc(sizeof(*new_ccb), M_CTLFE,
|
|
M_ZERO|M_NOWAIT);
|
|
if (new_ccb == NULL) {
|
|
status = CAM_RESRC_UNAVAIL;
|
|
break;
|
|
}
|
|
|
|
xpt_setup_ccb(&new_ccb->ccb_h, periph->path, /*priority*/ 1);
|
|
new_ccb->ccb_h.func_code = XPT_IMMEDIATE_NOTIFY;
|
|
new_ccb->ccb_h.cbfcnp = ctlfedone;
|
|
xpt_action(new_ccb);
|
|
softc->inots_sent++;
|
|
status = new_ccb->ccb_h.status;
|
|
if ((status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
|
|
/*
|
|
* Note that we don't free the CCB here. If the
|
|
* status is not CAM_REQ_INPROG, then we're
|
|
* probably talking to a SIM that says it is
|
|
* target-capable but doesn't support the
|
|
* XPT_IMMEDIATE_NOTIFY CCB. i.e. it supports the
|
|
* older API. In that case, it'll call xpt_done()
|
|
* on the CCB, and we need to free it in our done
|
|
* routine as a result.
|
|
*/
|
|
break;
|
|
}
|
|
}
|
|
if ((i == 0)
|
|
|| (status != CAM_REQ_INPROG)) {
|
|
xpt_print(periph->path, "%s: could not allocate immediate "
|
|
"notify CCBs, status 0x%x\n", __func__, status);
|
|
return (CAM_REQ_CMP_ERR);
|
|
}
|
|
return (CAM_REQ_CMP);
|
|
}
|
|
|
|
static void
|
|
ctlfeoninvalidate(struct cam_periph *periph)
|
|
{
|
|
union ccb en_lun_ccb;
|
|
cam_status status;
|
|
struct ctlfe_lun_softc *softc;
|
|
|
|
softc = (struct ctlfe_lun_softc *)periph->softc;
|
|
|
|
xpt_setup_ccb(&en_lun_ccb.ccb_h, periph->path, CAM_PRIORITY_NONE);
|
|
en_lun_ccb.ccb_h.func_code = XPT_EN_LUN;
|
|
en_lun_ccb.cel.grp6_len = 0;
|
|
en_lun_ccb.cel.grp7_len = 0;
|
|
en_lun_ccb.cel.enable = 0;
|
|
xpt_action(&en_lun_ccb);
|
|
status = (en_lun_ccb.ccb_h.status & CAM_STATUS_MASK);
|
|
if (status != CAM_REQ_CMP) {
|
|
xpt_print(periph->path, "%s: Disable LUN failed, status 0x%x\n",
|
|
__func__, en_lun_ccb.ccb_h.status);
|
|
/*
|
|
* XXX KDM what do we do now?
|
|
*/
|
|
}
|
|
xpt_print(periph->path, "LUN removed, %ju ATIOs outstanding, %ju "
|
|
"INOTs outstanding, %d refs\n", softc->atios_sent -
|
|
softc->atios_returned, softc->inots_sent -
|
|
softc->inots_returned, periph->refcount);
|
|
}
|
|
|
|
static void
|
|
ctlfecleanup(struct cam_periph *periph)
|
|
{
|
|
struct ctlfe_lun_softc *softc;
|
|
struct ctlfe_softc *bus_softc;
|
|
|
|
xpt_print(periph->path, "%s: Called\n", __func__);
|
|
|
|
softc = (struct ctlfe_lun_softc *)periph->softc;
|
|
bus_softc = softc->parent_softc;
|
|
|
|
STAILQ_REMOVE(&bus_softc->lun_softc_list, softc, ctlfe_lun_softc,links);
|
|
|
|
/*
|
|
* XXX KDM is there anything else that needs to be done here?
|
|
*/
|
|
free(softc, M_CTLFE);
|
|
}
|
|
|
|
static void
|
|
ctlfestart(struct cam_periph *periph, union ccb *start_ccb)
|
|
{
|
|
struct ctlfe_lun_softc *softc;
|
|
struct ccb_hdr *ccb_h;
|
|
|
|
softc = (struct ctlfe_lun_softc *)periph->softc;
|
|
|
|
softc->ccbs_alloced++;
|
|
|
|
ccb_h = TAILQ_FIRST(&softc->work_queue);
|
|
if (periph->immediate_priority <= periph->pinfo.priority) {
|
|
panic("shouldn't get to the CCB waiting case!");
|
|
start_ccb->ccb_h.ccb_type = CTLFE_CCB_WAITING;
|
|
SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
|
|
periph_links.sle);
|
|
periph->immediate_priority = CAM_PRIORITY_NONE;
|
|
wakeup(&periph->ccb_list);
|
|
} else if (ccb_h == NULL) {
|
|
softc->ccbs_freed++;
|
|
xpt_release_ccb(start_ccb);
|
|
} else {
|
|
struct ccb_accept_tio *atio;
|
|
struct ccb_scsiio *csio;
|
|
uint8_t *data_ptr;
|
|
uint32_t dxfer_len;
|
|
ccb_flags flags;
|
|
union ctl_io *io;
|
|
uint8_t scsi_status;
|
|
|
|
/* Take the ATIO off the work queue */
|
|
TAILQ_REMOVE(&softc->work_queue, ccb_h, periph_links.tqe);
|
|
atio = (struct ccb_accept_tio *)ccb_h;
|
|
io = (union ctl_io *)ccb_h->io_ptr;
|
|
csio = &start_ccb->csio;
|
|
|
|
flags = atio->ccb_h.flags &
|
|
(CAM_DIS_DISCONNECT|CAM_TAG_ACTION_VALID|CAM_DIR_MASK);
|
|
|
|
if ((io == NULL)
|
|
|| (io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE) {
|
|
/*
|
|
* We're done, send status back.
|
|
*/
|
|
flags |= CAM_SEND_STATUS;
|
|
if (io == NULL) {
|
|
scsi_status = SCSI_STATUS_BUSY;
|
|
csio->sense_len = 0;
|
|
} else if ((io->io_hdr.status & CTL_STATUS_MASK) ==
|
|
CTL_CMD_ABORTED) {
|
|
io->io_hdr.flags &= ~CTL_FLAG_STATUS_QUEUED;
|
|
|
|
/*
|
|
* If this command was aborted, we don't
|
|
* need to send status back to the SIM.
|
|
* Just free the CTIO and ctl_io, and
|
|
* recycle the ATIO back to the SIM.
|
|
*/
|
|
xpt_print(periph->path, "%s: aborted "
|
|
"command 0x%04x discarded\n",
|
|
__func__, io->scsiio.tag_num);
|
|
ctl_free_io(io);
|
|
/*
|
|
* For a wildcard attachment, commands can
|
|
* come in with a specific target/lun. Reset
|
|
* the target and LUN fields back to the
|
|
* wildcard values before we send them back
|
|
* down to the SIM. The SIM has a wildcard
|
|
* LUN enabled, not whatever target/lun
|
|
* these happened to be.
|
|
*/
|
|
if (softc->flags & CTLFE_LUN_WILDCARD) {
|
|
atio->ccb_h.target_id =
|
|
CAM_TARGET_WILDCARD;
|
|
atio->ccb_h.target_lun =
|
|
CAM_LUN_WILDCARD;
|
|
}
|
|
|
|
if ((atio->ccb_h.status & CAM_DEV_QFRZN) != 0) {
|
|
cam_release_devq(periph->path,
|
|
/*relsim_flags*/0,
|
|
/*reduction*/0,
|
|
/*timeout*/0,
|
|
/*getcount_only*/0);
|
|
atio->ccb_h.status &= ~CAM_DEV_QFRZN;
|
|
}
|
|
|
|
ccb_h = TAILQ_FIRST(&softc->work_queue);
|
|
|
|
if (atio->ccb_h.func_code !=
|
|
XPT_ACCEPT_TARGET_IO) {
|
|
xpt_print(periph->path, "%s: func_code "
|
|
"is %#x\n", __func__,
|
|
atio->ccb_h.func_code);
|
|
}
|
|
start_ccb->ccb_h.func_code = XPT_ABORT;
|
|
start_ccb->cab.abort_ccb = (union ccb *)atio;
|
|
start_ccb->ccb_h.cbfcnp = ctlfedone;
|
|
|
|
/* Tell the SIM that we've aborted this ATIO */
|
|
xpt_action(start_ccb);
|
|
softc->ccbs_freed++;
|
|
xpt_release_ccb(start_ccb);
|
|
|
|
/*
|
|
* Send the ATIO back down to the SIM.
|
|
*/
|
|
xpt_action((union ccb *)atio);
|
|
softc->atios_sent++;
|
|
|
|
/*
|
|
* If we still have work to do, ask for
|
|
* another CCB. Otherwise, deactivate our
|
|
* callout.
|
|
*/
|
|
if (ccb_h != NULL)
|
|
xpt_schedule(periph, /*priority*/ 1);
|
|
else
|
|
callout_stop(&softc->dma_callout);
|
|
|
|
return;
|
|
} else {
|
|
io->io_hdr.flags &= ~CTL_FLAG_STATUS_QUEUED;
|
|
scsi_status = io->scsiio.scsi_status;
|
|
csio->sense_len = io->scsiio.sense_len;
|
|
}
|
|
data_ptr = NULL;
|
|
dxfer_len = 0;
|
|
if (io == NULL) {
|
|
printf("%s: tag %04x io is NULL\n", __func__,
|
|
atio->tag_id);
|
|
} else {
|
|
#ifdef CTLFEDEBUG
|
|
printf("%s: tag %04x status %x\n", __func__,
|
|
atio->tag_id, io->io_hdr.status);
|
|
#endif
|
|
}
|
|
csio->sglist_cnt = 0;
|
|
if (csio->sense_len != 0) {
|
|
csio->sense_data = io->scsiio.sense_data;
|
|
flags |= CAM_SEND_SENSE;
|
|
} else if (scsi_status == SCSI_STATUS_CHECK_COND) {
|
|
xpt_print(periph->path, "%s: check condition "
|
|
"with no sense\n", __func__);
|
|
}
|
|
} else {
|
|
struct ctlfe_lun_cmd_info *cmd_info;
|
|
|
|
/*
|
|
* Datamove call, we need to setup the S/G list.
|
|
* If we pass in a S/G list, the isp(4) driver at
|
|
* least expects physical/bus addresses.
|
|
*/
|
|
|
|
cmd_info = (struct ctlfe_lun_cmd_info *)
|
|
io->io_hdr.port_priv;
|
|
|
|
KASSERT(sizeof(*cmd_info) < CTL_PORT_PRIV_SIZE,
|
|
("%s: sizeof(struct ctlfe_lun_cmd_info) %zd < "
|
|
"CTL_PORT_PRIV_SIZE %d", __func__,
|
|
sizeof(*cmd_info), CTL_PORT_PRIV_SIZE));
|
|
io->io_hdr.flags &= ~CTL_FLAG_DMA_QUEUED;
|
|
|
|
/*
|
|
* Need to zero this, in case it has been used for
|
|
* a previous datamove for this particular I/O.
|
|
*/
|
|
bzero(cmd_info, sizeof(*cmd_info));
|
|
scsi_status = 0;
|
|
|
|
/*
|
|
* Set the direction, relative to the initiator.
|
|
*/
|
|
flags &= ~CAM_DIR_MASK;
|
|
if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) ==
|
|
CTL_FLAG_DATA_IN)
|
|
flags |= CAM_DIR_IN;
|
|
else
|
|
flags |= CAM_DIR_OUT;
|
|
|
|
csio->cdb_len = atio->cdb_len;
|
|
|
|
if (io->scsiio.kern_sg_entries == 0) {
|
|
/* No S/G list */
|
|
data_ptr = io->scsiio.kern_data_ptr;
|
|
dxfer_len = io->scsiio.kern_data_len;
|
|
csio->sglist_cnt = 0;
|
|
|
|
if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR)
|
|
flags |= CAM_DATA_PHYS;
|
|
} else if (io->scsiio.kern_sg_entries <=
|
|
(sizeof(cmd_info->cam_sglist)/
|
|
sizeof(cmd_info->cam_sglist[0]))) {
|
|
/*
|
|
* S/G list with physical or virtual pointers.
|
|
* Just populate the CAM S/G list with the
|
|
* pointers.
|
|
*/
|
|
int i;
|
|
struct ctl_sg_entry *ctl_sglist;
|
|
bus_dma_segment_t *cam_sglist;
|
|
|
|
ctl_sglist = (struct ctl_sg_entry *)
|
|
io->scsiio.kern_data_ptr;
|
|
cam_sglist = cmd_info->cam_sglist;
|
|
|
|
for (i = 0; i < io->scsiio.kern_sg_entries;i++){
|
|
cam_sglist[i].ds_addr =
|
|
(bus_addr_t)ctl_sglist[i].addr;
|
|
cam_sglist[i].ds_len =
|
|
ctl_sglist[i].len;
|
|
}
|
|
csio->sglist_cnt = io->scsiio.kern_sg_entries;
|
|
flags |= CAM_SCATTER_VALID;
|
|
if (io->io_hdr.flags & CTL_FLAG_BUS_ADDR)
|
|
flags |= CAM_SG_LIST_PHYS;
|
|
else
|
|
flags &= ~CAM_SG_LIST_PHYS;
|
|
data_ptr = (uint8_t *)cam_sglist;
|
|
dxfer_len = io->scsiio.kern_data_len;
|
|
} else {
|
|
/* S/G list with virtual pointers */
|
|
struct ctl_sg_entry *sglist;
|
|
int *ti;
|
|
|
|
/*
|
|
* XXX KDM this is a temporary hack. The
|
|
* isp(4) driver can't deal with S/G lists
|
|
* with virtual pointers, so we need to
|
|
* go through and send down one virtual
|
|
* pointer at a time.
|
|
*/
|
|
sglist = (struct ctl_sg_entry *)
|
|
io->scsiio.kern_data_ptr;
|
|
ti = &cmd_info->cur_transfer_index;
|
|
data_ptr = sglist[*ti].addr;
|
|
dxfer_len = sglist[*ti].len;
|
|
csio->sglist_cnt = 0;
|
|
cmd_info->flags |= CTLFE_CMD_PIECEWISE;
|
|
(*ti)++;
|
|
}
|
|
|
|
io->scsiio.ext_data_filled += dxfer_len;
|
|
|
|
if (io->scsiio.ext_data_filled >
|
|
io->scsiio.kern_total_len) {
|
|
xpt_print(periph->path, "%s: tag 0x%04x "
|
|
"fill len %u > total %u\n",
|
|
__func__, io->scsiio.tag_num,
|
|
io->scsiio.ext_data_filled,
|
|
io->scsiio.kern_total_len);
|
|
}
|
|
}
|
|
|
|
#ifdef CTLFEDEBUG
|
|
printf("%s: %s: tag %04x flags %x ptr %p len %u\n", __func__,
|
|
(flags & CAM_SEND_STATUS) ? "done" : "datamove",
|
|
atio->tag_id, flags, data_ptr, dxfer_len);
|
|
#endif
|
|
|
|
/*
|
|
* Valid combinations:
|
|
* - CAM_SEND_STATUS, SCATTER_VALID = 0, dxfer_len = 0,
|
|
* sglist_cnt = 0
|
|
* - CAM_SEND_STATUS = 0, SCATTER_VALID = 0, dxfer_len != 0,
|
|
* sglist_cnt = 0
|
|
* - CAM_SEND_STATUS = 0, SCATTER_VALID, dxfer_len != 0,
|
|
* sglist_cnt != 0
|
|
*/
|
|
#ifdef CTLFEDEBUG
|
|
if (((flags & CAM_SEND_STATUS)
|
|
&& (((flags & CAM_SCATTER_VALID) != 0)
|
|
|| (dxfer_len != 0)
|
|
|| (csio->sglist_cnt != 0)))
|
|
|| (((flags & CAM_SEND_STATUS) == 0)
|
|
&& (dxfer_len == 0))
|
|
|| ((flags & CAM_SCATTER_VALID)
|
|
&& (csio->sglist_cnt == 0))
|
|
|| (((flags & CAM_SCATTER_VALID) == 0)
|
|
&& (csio->sglist_cnt != 0))) {
|
|
printf("%s: tag %04x cdb %02x flags %#x dxfer_len "
|
|
"%d sg %u\n", __func__, atio->tag_id,
|
|
atio->cdb_io.cdb_bytes[0], flags, dxfer_len,
|
|
csio->sglist_cnt);
|
|
if (io != NULL) {
|
|
printf("%s: tag %04x io status %#x\n", __func__,
|
|
atio->tag_id, io->io_hdr.status);
|
|
} else {
|
|
printf("%s: tag %04x no associated io\n",
|
|
__func__, atio->tag_id);
|
|
}
|
|
}
|
|
#endif
|
|
cam_fill_ctio(csio,
|
|
/*retries*/ 2,
|
|
ctlfedone,
|
|
flags,
|
|
(flags & CAM_TAG_ACTION_VALID) ?
|
|
MSG_SIMPLE_Q_TAG : 0,
|
|
atio->tag_id,
|
|
atio->init_id,
|
|
scsi_status,
|
|
/*data_ptr*/ data_ptr,
|
|
/*dxfer_len*/ dxfer_len,
|
|
/*timeout*/ 5 * 1000);
|
|
start_ccb->ccb_h.ccb_atio = atio;
|
|
if (((flags & CAM_SEND_STATUS) == 0)
|
|
&& (io != NULL))
|
|
io->io_hdr.flags |= CTL_FLAG_DMA_INPROG;
|
|
|
|
softc->ctios_sent++;
|
|
|
|
xpt_action(start_ccb);
|
|
|
|
if ((atio->ccb_h.status & CAM_DEV_QFRZN) != 0) {
|
|
cam_release_devq(periph->path,
|
|
/*relsim_flags*/0,
|
|
/*reduction*/0,
|
|
/*timeout*/0,
|
|
/*getcount_only*/0);
|
|
atio->ccb_h.status &= ~CAM_DEV_QFRZN;
|
|
}
|
|
|
|
ccb_h = TAILQ_FIRST(&softc->work_queue);
|
|
}
|
|
/*
|
|
* If we still have work to do, ask for another CCB. Otherwise,
|
|
* deactivate our callout.
|
|
*/
|
|
if (ccb_h != NULL)
|
|
xpt_schedule(periph, /*priority*/ 1);
|
|
else
|
|
callout_stop(&softc->dma_callout);
|
|
}
|
|
|
|
static void
|
|
ctlfe_free_ccb(struct cam_periph *periph, union ccb *ccb)
|
|
{
|
|
struct ctlfe_lun_softc *softc;
|
|
|
|
softc = (struct ctlfe_lun_softc *)periph->softc;
|
|
|
|
switch (ccb->ccb_h.func_code) {
|
|
case XPT_ACCEPT_TARGET_IO:
|
|
softc->atios_returned++;
|
|
break;
|
|
case XPT_IMMEDIATE_NOTIFY:
|
|
case XPT_NOTIFY_ACKNOWLEDGE:
|
|
softc->inots_returned++;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
free(ccb, M_CTLFE);
|
|
|
|
KASSERT(softc->atios_returned <= softc->atios_sent, ("%s: "
|
|
"atios_returned %ju > atios_sent %ju", __func__,
|
|
softc->atios_returned, softc->atios_sent));
|
|
KASSERT(softc->inots_returned <= softc->inots_sent, ("%s: "
|
|
"inots_returned %ju > inots_sent %ju", __func__,
|
|
softc->inots_returned, softc->inots_sent));
|
|
|
|
/*
|
|
* If we have received all of our CCBs, we can release our
|
|
* reference on the peripheral driver. It will probably go away
|
|
* now.
|
|
*/
|
|
if ((softc->atios_returned == softc->atios_sent)
|
|
&& (softc->inots_returned == softc->inots_sent)) {
|
|
cam_periph_release_locked(periph);
|
|
}
|
|
}
|
|
|
|
static int
|
|
ctlfe_adjust_cdb(struct ccb_accept_tio *atio, uint32_t offset)
|
|
{
|
|
uint64_t lba;
|
|
uint32_t num_blocks, nbc;
|
|
uint8_t *cmdbyt = (atio->ccb_h.flags & CAM_CDB_POINTER)?
|
|
atio->cdb_io.cdb_ptr : atio->cdb_io.cdb_bytes;
|
|
|
|
nbc = offset >> 9; /* ASSUMING 512 BYTE BLOCKS */
|
|
|
|
switch (cmdbyt[0]) {
|
|
case READ_6:
|
|
case WRITE_6:
|
|
{
|
|
struct scsi_rw_6 *cdb = (struct scsi_rw_6 *)cmdbyt;
|
|
lba = scsi_3btoul(cdb->addr);
|
|
lba &= 0x1fffff;
|
|
num_blocks = cdb->length;
|
|
if (num_blocks == 0)
|
|
num_blocks = 256;
|
|
lba += nbc;
|
|
num_blocks -= nbc;
|
|
scsi_ulto3b(lba, cdb->addr);
|
|
cdb->length = num_blocks;
|
|
break;
|
|
}
|
|
case READ_10:
|
|
case WRITE_10:
|
|
{
|
|
struct scsi_rw_10 *cdb = (struct scsi_rw_10 *)cmdbyt;
|
|
lba = scsi_4btoul(cdb->addr);
|
|
num_blocks = scsi_2btoul(cdb->length);
|
|
lba += nbc;
|
|
num_blocks -= nbc;
|
|
scsi_ulto4b(lba, cdb->addr);
|
|
scsi_ulto2b(num_blocks, cdb->length);
|
|
break;
|
|
}
|
|
case READ_12:
|
|
case WRITE_12:
|
|
{
|
|
struct scsi_rw_12 *cdb = (struct scsi_rw_12 *)cmdbyt;
|
|
lba = scsi_4btoul(cdb->addr);
|
|
num_blocks = scsi_4btoul(cdb->length);
|
|
lba += nbc;
|
|
num_blocks -= nbc;
|
|
scsi_ulto4b(lba, cdb->addr);
|
|
scsi_ulto4b(num_blocks, cdb->length);
|
|
break;
|
|
}
|
|
case READ_16:
|
|
case WRITE_16:
|
|
{
|
|
struct scsi_rw_16 *cdb = (struct scsi_rw_16 *)cmdbyt;
|
|
lba = scsi_8btou64(cdb->addr);
|
|
num_blocks = scsi_4btoul(cdb->length);
|
|
lba += nbc;
|
|
num_blocks -= nbc;
|
|
scsi_u64to8b(lba, cdb->addr);
|
|
scsi_ulto4b(num_blocks, cdb->length);
|
|
break;
|
|
}
|
|
default:
|
|
return -1;
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
ctlfedone(struct cam_periph *periph, union ccb *done_ccb)
|
|
{
|
|
struct ctlfe_lun_softc *softc;
|
|
struct ctlfe_softc *bus_softc;
|
|
struct ccb_accept_tio *atio = NULL;
|
|
union ctl_io *io = NULL;
|
|
|
|
#ifdef CTLFE_DEBUG
|
|
printf("%s: entered, func_code = %#x, type = %#lx\n", __func__,
|
|
done_ccb->ccb_h.func_code, done_ccb->ccb_h.ccb_type);
|
|
#endif
|
|
|
|
softc = (struct ctlfe_lun_softc *)periph->softc;
|
|
bus_softc = softc->parent_softc;
|
|
|
|
if (done_ccb->ccb_h.ccb_type == CTLFE_CCB_WAITING) {
|
|
panic("shouldn't get to the CCB waiting case!");
|
|
wakeup(&done_ccb->ccb_h.cbfcnp);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* If the peripheral is invalid, ATIOs and immediate notify CCBs
|
|
* need to be freed. Most of the ATIOs and INOTs that come back
|
|
* will be CCBs that are being returned from the SIM as a result of
|
|
* our disabling the LUN.
|
|
*
|
|
* Other CCB types are handled in their respective cases below.
|
|
*/
|
|
if (periph->flags & CAM_PERIPH_INVALID) {
|
|
switch (done_ccb->ccb_h.func_code) {
|
|
case XPT_ACCEPT_TARGET_IO:
|
|
case XPT_IMMEDIATE_NOTIFY:
|
|
case XPT_NOTIFY_ACKNOWLEDGE:
|
|
ctlfe_free_ccb(periph, done_ccb);
|
|
return;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
}
|
|
switch (done_ccb->ccb_h.func_code) {
|
|
case XPT_ACCEPT_TARGET_IO: {
|
|
|
|
atio = &done_ccb->atio;
|
|
|
|
softc->atios_returned++;
|
|
|
|
resubmit:
|
|
/*
|
|
* Allocate a ctl_io, pass it to CTL, and wait for the
|
|
* datamove or done.
|
|
*/
|
|
io = ctl_alloc_io(bus_softc->fe.ctl_pool_ref);
|
|
if (io == NULL) {
|
|
atio->ccb_h.flags &= ~CAM_DIR_MASK;
|
|
atio->ccb_h.flags |= CAM_DIR_NONE;
|
|
|
|
printf("%s: ctl_alloc_io failed!\n", __func__);
|
|
|
|
/*
|
|
* XXX KDM need to set SCSI_STATUS_BUSY, but there
|
|
* is no field in the ATIO structure to do that,
|
|
* and we aren't able to allocate a ctl_io here.
|
|
* What to do?
|
|
*/
|
|
atio->sense_len = 0;
|
|
done_ccb->ccb_h.io_ptr = NULL;
|
|
TAILQ_INSERT_TAIL(&softc->work_queue, &atio->ccb_h,
|
|
periph_links.tqe);
|
|
xpt_schedule(periph, /*priority*/ 1);
|
|
break;
|
|
}
|
|
ctl_zero_io(io);
|
|
|
|
/* Save pointers on both sides */
|
|
io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr = done_ccb;
|
|
done_ccb->ccb_h.io_ptr = io;
|
|
|
|
/*
|
|
* Only SCSI I/O comes down this path, resets, etc. come
|
|
* down the immediate notify path below.
|
|
*/
|
|
io->io_hdr.io_type = CTL_IO_SCSI;
|
|
io->io_hdr.nexus.initid.id = atio->init_id;
|
|
io->io_hdr.nexus.targ_port = bus_softc->fe.targ_port;
|
|
io->io_hdr.nexus.targ_target.id = atio->ccb_h.target_id;
|
|
io->io_hdr.nexus.targ_lun = atio->ccb_h.target_lun;
|
|
io->scsiio.tag_num = atio->tag_id;
|
|
switch (atio->tag_action) {
|
|
case CAM_TAG_ACTION_NONE:
|
|
io->scsiio.tag_type = CTL_TAG_UNTAGGED;
|
|
break;
|
|
case MSG_SIMPLE_TASK:
|
|
io->scsiio.tag_type = CTL_TAG_SIMPLE;
|
|
break;
|
|
case MSG_HEAD_OF_QUEUE_TASK:
|
|
io->scsiio.tag_type = CTL_TAG_HEAD_OF_QUEUE;
|
|
break;
|
|
case MSG_ORDERED_TASK:
|
|
io->scsiio.tag_type = CTL_TAG_ORDERED;
|
|
break;
|
|
case MSG_ACA_TASK:
|
|
io->scsiio.tag_type = CTL_TAG_ACA;
|
|
break;
|
|
default:
|
|
io->scsiio.tag_type = CTL_TAG_UNTAGGED;
|
|
printf("%s: unhandled tag type %#x!!\n", __func__,
|
|
atio->tag_action);
|
|
break;
|
|
}
|
|
if (atio->cdb_len > sizeof(io->scsiio.cdb)) {
|
|
printf("%s: WARNING: CDB len %d > ctl_io space %zd\n",
|
|
__func__, atio->cdb_len, sizeof(io->scsiio.cdb));
|
|
}
|
|
io->scsiio.cdb_len = min(atio->cdb_len, sizeof(io->scsiio.cdb));
|
|
bcopy(atio->cdb_io.cdb_bytes, io->scsiio.cdb,
|
|
io->scsiio.cdb_len);
|
|
|
|
#ifdef CTLFEDEBUG
|
|
printf("%s: %ju:%d:%ju:%d: tag %04x CDB %02x\n", __func__,
|
|
(uintmax_t)io->io_hdr.nexus.initid.id,
|
|
io->io_hdr.nexus.targ_port,
|
|
(uintmax_t)io->io_hdr.nexus.targ_target.id,
|
|
io->io_hdr.nexus.targ_lun,
|
|
io->scsiio.tag_num, io->scsiio.cdb[0]);
|
|
#endif
|
|
|
|
ctl_queue(io);
|
|
break;
|
|
}
|
|
case XPT_CONT_TARGET_IO: {
|
|
int srr = 0;
|
|
uint32_t srr_off = 0;
|
|
|
|
atio = (struct ccb_accept_tio *)done_ccb->ccb_h.ccb_atio;
|
|
io = (union ctl_io *)atio->ccb_h.io_ptr;
|
|
|
|
softc->ctios_returned++;
|
|
#ifdef CTLFEDEBUG
|
|
printf("%s: got XPT_CONT_TARGET_IO tag %#x flags %#x\n",
|
|
__func__, atio->tag_id, done_ccb->ccb_h.flags);
|
|
#endif
|
|
/*
|
|
* Handle SRR case were the data pointer is pushed back hack
|
|
*/
|
|
if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_MESSAGE_RECV
|
|
&& done_ccb->csio.msg_ptr != NULL
|
|
&& done_ccb->csio.msg_ptr[0] == MSG_EXTENDED
|
|
&& done_ccb->csio.msg_ptr[1] == 5
|
|
&& done_ccb->csio.msg_ptr[2] == 0) {
|
|
srr = 1;
|
|
srr_off =
|
|
(done_ccb->csio.msg_ptr[3] << 24)
|
|
| (done_ccb->csio.msg_ptr[4] << 16)
|
|
| (done_ccb->csio.msg_ptr[5] << 8)
|
|
| (done_ccb->csio.msg_ptr[6]);
|
|
}
|
|
|
|
if (srr && (done_ccb->ccb_h.flags & CAM_SEND_STATUS)) {
|
|
/*
|
|
* If status was being sent, the back end data is now
|
|
* history. Hack it up and resubmit a new command with
|
|
* the CDB adjusted. If the SIM does the right thing,
|
|
* all of the resid math should work.
|
|
*/
|
|
softc->ccbs_freed++;
|
|
xpt_release_ccb(done_ccb);
|
|
ctl_free_io(io);
|
|
if (ctlfe_adjust_cdb(atio, srr_off) == 0) {
|
|
done_ccb = (union ccb *)atio;
|
|
goto resubmit;
|
|
}
|
|
/*
|
|
* Fall through to doom....
|
|
*/
|
|
} else if (srr) {
|
|
/*
|
|
* If we have an srr and we're still sending data, we
|
|
* should be able to adjust offsets and cycle again.
|
|
*/
|
|
io->scsiio.kern_rel_offset =
|
|
io->scsiio.ext_data_filled = srr_off;
|
|
io->scsiio.ext_data_len = io->scsiio.kern_total_len -
|
|
io->scsiio.kern_rel_offset;
|
|
softc->ccbs_freed++;
|
|
io->scsiio.io_hdr.status = CTL_STATUS_NONE;
|
|
xpt_release_ccb(done_ccb);
|
|
TAILQ_INSERT_HEAD(&softc->work_queue, &atio->ccb_h,
|
|
periph_links.tqe);
|
|
xpt_schedule(periph, /*priority*/ 1);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* If we were sending status back to the initiator, free up
|
|
* resources. If we were doing a datamove, call the
|
|
* datamove done routine.
|
|
*/
|
|
if (done_ccb->ccb_h.flags & CAM_SEND_STATUS) {
|
|
softc->ccbs_freed++;
|
|
xpt_release_ccb(done_ccb);
|
|
ctl_free_io(io);
|
|
/*
|
|
* For a wildcard attachment, commands can come in
|
|
* with a specific target/lun. Reset the target
|
|
* and LUN fields back to the wildcard values before
|
|
* we send them back down to the SIM. The SIM has
|
|
* a wildcard LUN enabled, not whatever target/lun
|
|
* these happened to be.
|
|
*/
|
|
if (softc->flags & CTLFE_LUN_WILDCARD) {
|
|
atio->ccb_h.target_id = CAM_TARGET_WILDCARD;
|
|
atio->ccb_h.target_lun = CAM_LUN_WILDCARD;
|
|
}
|
|
if (periph->flags & CAM_PERIPH_INVALID) {
|
|
ctlfe_free_ccb(periph, (union ccb *)atio);
|
|
return;
|
|
} else {
|
|
xpt_action((union ccb *)atio);
|
|
softc->atios_sent++;
|
|
}
|
|
} else {
|
|
struct ctlfe_lun_cmd_info *cmd_info;
|
|
struct ccb_scsiio *csio;
|
|
|
|
csio = &done_ccb->csio;
|
|
cmd_info = (struct ctlfe_lun_cmd_info *)
|
|
io->io_hdr.port_priv;
|
|
|
|
io->io_hdr.flags &= ~CTL_FLAG_DMA_INPROG;
|
|
|
|
io->scsiio.ext_data_len += csio->dxfer_len;
|
|
if (io->scsiio.ext_data_len >
|
|
io->scsiio.kern_total_len) {
|
|
xpt_print(periph->path, "%s: tag 0x%04x "
|
|
"done len %u > total %u sent %u\n",
|
|
__func__, io->scsiio.tag_num,
|
|
io->scsiio.ext_data_len,
|
|
io->scsiio.kern_total_len,
|
|
io->scsiio.ext_data_filled);
|
|
}
|
|
/*
|
|
* Translate CAM status to CTL status. Success
|
|
* does not change the overall, ctl_io status. In
|
|
* that case we just set port_status to 0. If we
|
|
* have a failure, though, set a data phase error
|
|
* for the overall ctl_io.
|
|
*/
|
|
switch (done_ccb->ccb_h.status & CAM_STATUS_MASK) {
|
|
case CAM_REQ_CMP:
|
|
io->io_hdr.port_status = 0;
|
|
break;
|
|
default:
|
|
/*
|
|
* XXX KDM the isp(4) driver doesn't really
|
|
* seem to send errors back for data
|
|
* transfers that I can tell. There is one
|
|
* case where it'll send CAM_REQ_CMP_ERR,
|
|
* but probably not that many more cases.
|
|
* So set a generic data phase error here,
|
|
* like the SXP driver sets.
|
|
*/
|
|
io->io_hdr.port_status = 0xbad1;
|
|
ctl_set_data_phase_error(&io->scsiio);
|
|
/*
|
|
* XXX KDM figure out residual.
|
|
*/
|
|
break;
|
|
}
|
|
/*
|
|
* If we had to break this S/G list into multiple
|
|
* pieces, figure out where we are in the list, and
|
|
* continue sending pieces if necessary.
|
|
*/
|
|
if ((cmd_info->flags & CTLFE_CMD_PIECEWISE)
|
|
&& (io->io_hdr.port_status == 0)
|
|
&& (cmd_info->cur_transfer_index <
|
|
io->scsiio.kern_sg_entries)) {
|
|
struct ctl_sg_entry *sglist;
|
|
ccb_flags flags;
|
|
uint8_t scsi_status;
|
|
uint8_t *data_ptr;
|
|
uint32_t dxfer_len;
|
|
int *ti;
|
|
|
|
sglist = (struct ctl_sg_entry *)
|
|
io->scsiio.kern_data_ptr;
|
|
ti = &cmd_info->cur_transfer_index;
|
|
flags = atio->ccb_h.flags &
|
|
(CAM_DIS_DISCONNECT|
|
|
CAM_TAG_ACTION_VALID|
|
|
CAM_DIR_MASK);
|
|
|
|
/*
|
|
* Set the direction, relative to the initiator.
|
|
*/
|
|
flags &= ~CAM_DIR_MASK;
|
|
if ((io->io_hdr.flags & CTL_FLAG_DATA_MASK) ==
|
|
CTL_FLAG_DATA_IN)
|
|
flags |= CAM_DIR_IN;
|
|
else
|
|
flags |= CAM_DIR_OUT;
|
|
|
|
data_ptr = sglist[*ti].addr;
|
|
dxfer_len = sglist[*ti].len;
|
|
(*ti)++;
|
|
|
|
scsi_status = 0;
|
|
|
|
if (((flags & CAM_SEND_STATUS) == 0)
|
|
&& (dxfer_len == 0)) {
|
|
printf("%s: tag %04x no status or "
|
|
"len cdb = %02x\n", __func__,
|
|
atio->tag_id,
|
|
atio->cdb_io.cdb_bytes[0]);
|
|
printf("%s: tag %04x io status %#x\n",
|
|
__func__, atio->tag_id,
|
|
io->io_hdr.status);
|
|
}
|
|
|
|
cam_fill_ctio(csio,
|
|
/*retries*/ 2,
|
|
ctlfedone,
|
|
flags,
|
|
(flags & CAM_TAG_ACTION_VALID) ?
|
|
MSG_SIMPLE_Q_TAG : 0,
|
|
atio->tag_id,
|
|
atio->init_id,
|
|
scsi_status,
|
|
/*data_ptr*/ data_ptr,
|
|
/*dxfer_len*/ dxfer_len,
|
|
/*timeout*/ 5 * 1000);
|
|
|
|
csio->resid = 0;
|
|
csio->ccb_h.ccb_atio = atio;
|
|
io->io_hdr.flags |= CTL_FLAG_DMA_INPROG;
|
|
softc->ctios_sent++;
|
|
xpt_action((union ccb *)csio);
|
|
} else {
|
|
/*
|
|
* Release the CTIO. The ATIO will be sent back
|
|
* down to the SIM once we send status.
|
|
*/
|
|
softc->ccbs_freed++;
|
|
xpt_release_ccb(done_ccb);
|
|
|
|
/* Call the backend move done callback */
|
|
io->scsiio.be_move_done(io);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case XPT_IMMEDIATE_NOTIFY: {
|
|
union ctl_io *io;
|
|
struct ccb_immediate_notify *inot;
|
|
cam_status status;
|
|
int frozen;
|
|
|
|
inot = &done_ccb->cin1;
|
|
|
|
softc->inots_returned++;
|
|
|
|
frozen = (done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
|
|
|
|
printf("%s: got XPT_IMMEDIATE_NOTIFY status %#x tag %#x "
|
|
"seq %#x\n", __func__, inot->ccb_h.status,
|
|
inot->tag_id, inot->seq_id);
|
|
|
|
io = ctl_alloc_io(bus_softc->fe.ctl_pool_ref);
|
|
if (io != NULL) {
|
|
int send_ctl_io;
|
|
|
|
send_ctl_io = 1;
|
|
|
|
ctl_zero_io(io);
|
|
io->io_hdr.io_type = CTL_IO_TASK;
|
|
io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr =done_ccb;
|
|
inot->ccb_h.io_ptr = io;
|
|
io->io_hdr.nexus.initid.id = inot->initiator_id;
|
|
io->io_hdr.nexus.targ_port = bus_softc->fe.targ_port;
|
|
io->io_hdr.nexus.targ_target.id = inot->ccb_h.target_id;
|
|
io->io_hdr.nexus.targ_lun = inot->ccb_h.target_lun;
|
|
/* XXX KDM should this be the tag_id? */
|
|
io->taskio.tag_num = inot->seq_id;
|
|
|
|
status = inot->ccb_h.status & CAM_STATUS_MASK;
|
|
switch (status) {
|
|
case CAM_SCSI_BUS_RESET:
|
|
io->taskio.task_action = CTL_TASK_BUS_RESET;
|
|
break;
|
|
case CAM_BDR_SENT:
|
|
io->taskio.task_action = CTL_TASK_TARGET_RESET;
|
|
break;
|
|
case CAM_MESSAGE_RECV:
|
|
switch (inot->arg) {
|
|
case MSG_ABORT_TASK_SET:
|
|
/*
|
|
* XXX KDM this isn't currently
|
|
* supported by CTL. It ends up
|
|
* being a no-op.
|
|
*/
|
|
io->taskio.task_action =
|
|
CTL_TASK_ABORT_TASK_SET;
|
|
break;
|
|
case MSG_TARGET_RESET:
|
|
io->taskio.task_action =
|
|
CTL_TASK_TARGET_RESET;
|
|
break;
|
|
case MSG_ABORT_TASK:
|
|
io->taskio.task_action =
|
|
CTL_TASK_ABORT_TASK;
|
|
break;
|
|
case MSG_LOGICAL_UNIT_RESET:
|
|
io->taskio.task_action =
|
|
CTL_TASK_LUN_RESET;
|
|
break;
|
|
case MSG_CLEAR_TASK_SET:
|
|
/*
|
|
* XXX KDM this isn't currently
|
|
* supported by CTL. It ends up
|
|
* being a no-op.
|
|
*/
|
|
io->taskio.task_action =
|
|
CTL_TASK_CLEAR_TASK_SET;
|
|
break;
|
|
case MSG_CLEAR_ACA:
|
|
io->taskio.task_action =
|
|
CTL_TASK_CLEAR_ACA;
|
|
break;
|
|
case MSG_NOOP:
|
|
send_ctl_io = 0;
|
|
break;
|
|
default:
|
|
xpt_print(periph->path, "%s: "
|
|
"unsupported message 0x%x\n",
|
|
__func__, inot->arg);
|
|
send_ctl_io = 0;
|
|
break;
|
|
}
|
|
break;
|
|
case CAM_REQ_ABORTED:
|
|
/*
|
|
* This request was sent back by the driver.
|
|
* XXX KDM what do we do here?
|
|
*/
|
|
send_ctl_io = 0;
|
|
break;
|
|
case CAM_REQ_INVALID:
|
|
case CAM_PROVIDE_FAIL:
|
|
default:
|
|
/*
|
|
* We should only get here if we're talking
|
|
* to a talking to a SIM that is target
|
|
* capable but supports the old API. In
|
|
* that case, we need to just free the CCB.
|
|
* If we actually send a notify acknowledge,
|
|
* it will send that back with an error as
|
|
* well.
|
|
*/
|
|
|
|
if ((status != CAM_REQ_INVALID)
|
|
&& (status != CAM_PROVIDE_FAIL))
|
|
xpt_print(periph->path, "%s: "
|
|
"unsupported CAM status "
|
|
"0x%x\n", __func__, status);
|
|
|
|
ctl_free_io(io);
|
|
ctlfe_free_ccb(periph, done_ccb);
|
|
|
|
return;
|
|
}
|
|
if (send_ctl_io != 0) {
|
|
ctl_queue(io);
|
|
} else {
|
|
ctl_free_io(io);
|
|
done_ccb->ccb_h.status = CAM_REQ_INPROG;
|
|
done_ccb->ccb_h.func_code =
|
|
XPT_NOTIFY_ACKNOWLEDGE;
|
|
xpt_action(done_ccb);
|
|
}
|
|
} else {
|
|
xpt_print(periph->path, "%s: could not allocate "
|
|
"ctl_io for immediate notify!\n", __func__);
|
|
/* requeue this to the adapter */
|
|
done_ccb->ccb_h.status = CAM_REQ_INPROG;
|
|
done_ccb->ccb_h.func_code = XPT_NOTIFY_ACKNOWLEDGE;
|
|
xpt_action(done_ccb);
|
|
}
|
|
|
|
if (frozen != 0) {
|
|
cam_release_devq(periph->path,
|
|
/*relsim_flags*/ 0,
|
|
/*opening reduction*/ 0,
|
|
/*timeout*/ 0,
|
|
/*getcount_only*/ 0);
|
|
}
|
|
break;
|
|
}
|
|
case XPT_NOTIFY_ACKNOWLEDGE:
|
|
/*
|
|
* Queue this back down to the SIM as an immediate notify.
|
|
*/
|
|
done_ccb->ccb_h.func_code = XPT_IMMEDIATE_NOTIFY;
|
|
xpt_action(done_ccb);
|
|
softc->inots_sent++;
|
|
break;
|
|
case XPT_ABORT:
|
|
/*
|
|
* XPT_ABORT is an immediate CCB, we shouldn't get here.
|
|
*/
|
|
panic("%s: XPT_ABORT CCB returned!", __func__);
|
|
break;
|
|
case XPT_SET_SIM_KNOB:
|
|
case XPT_GET_SIM_KNOB:
|
|
break;
|
|
default:
|
|
panic("%s: unexpected CCB type %#x", __func__,
|
|
done_ccb->ccb_h.func_code);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
ctlfe_onoffline(void *arg, int online)
|
|
{
|
|
struct ctlfe_softc *bus_softc;
|
|
union ccb *ccb;
|
|
cam_status status;
|
|
struct cam_path *path;
|
|
struct cam_sim *sim;
|
|
int set_wwnn;
|
|
|
|
bus_softc = (struct ctlfe_softc *)arg;
|
|
|
|
set_wwnn = 0;
|
|
|
|
status = xpt_create_path(&path, /*periph*/ NULL, bus_softc->path_id,
|
|
CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
|
|
if (status != CAM_REQ_CMP) {
|
|
printf("%s: unable to create path!\n", __func__);
|
|
return;
|
|
}
|
|
ccb = (union ccb *)malloc(sizeof(*ccb), M_TEMP, M_WAITOK | M_ZERO);
|
|
xpt_setup_ccb(&ccb->ccb_h, path, CAM_PRIORITY_NONE);
|
|
|
|
sim = xpt_path_sim(path);
|
|
|
|
/*
|
|
* Copan WWN format:
|
|
*
|
|
* Bits 63-60: 0x5 NAA, IEEE registered name
|
|
* Bits 59-36: 0x000ED5 IEEE Company name assigned to Copan
|
|
* Bits 35-12: Copan SSN (Sequential Serial Number)
|
|
* Bits 11-8: Type of port:
|
|
* 1 == N-Port
|
|
* 2 == F-Port
|
|
* 3 == NL-Port
|
|
* Bits 7-0: 0 == Node Name, >0 == Port Number
|
|
*/
|
|
|
|
if (online != 0) {
|
|
|
|
ccb->ccb_h.func_code = XPT_GET_SIM_KNOB;
|
|
|
|
CAM_SIM_LOCK(sim);
|
|
|
|
xpt_action(ccb);
|
|
|
|
CAM_SIM_UNLOCK(sim);
|
|
|
|
if ((ccb->knob.xport_specific.valid & KNOB_VALID_ADDRESS) != 0){
|
|
#ifdef RANDOM_WWNN
|
|
uint64_t random_bits;
|
|
#endif
|
|
|
|
printf("%s: %s current WWNN %#jx\n", __func__,
|
|
bus_softc->port_name,
|
|
ccb->knob.xport_specific.fc.wwnn);
|
|
printf("%s: %s current WWPN %#jx\n", __func__,
|
|
bus_softc->port_name,
|
|
ccb->knob.xport_specific.fc.wwpn);
|
|
|
|
#ifdef RANDOM_WWNN
|
|
arc4rand(&random_bits, sizeof(random_bits), 0);
|
|
#endif
|
|
|
|
/*
|
|
* XXX KDM this is a bit of a kludge for now. We
|
|
* take the current WWNN/WWPN from the card, and
|
|
* replace the company identifier and the NL-Port
|
|
* indicator and the port number (for the WWPN).
|
|
* This should be replaced later with ddb_GetWWNN,
|
|
* or possibly a more centralized scheme. (It
|
|
* would be nice to have the WWNN/WWPN for each
|
|
* port stored in the ctl_frontend structure.)
|
|
*/
|
|
#ifdef RANDOM_WWNN
|
|
ccb->knob.xport_specific.fc.wwnn =
|
|
(random_bits &
|
|
0x0000000fffffff00ULL) |
|
|
/* Company ID */ 0x5000ED5000000000ULL |
|
|
/* NL-Port */ 0x0300;
|
|
ccb->knob.xport_specific.fc.wwpn =
|
|
(random_bits &
|
|
0x0000000fffffff00ULL) |
|
|
/* Company ID */ 0x5000ED5000000000ULL |
|
|
/* NL-Port */ 0x3000 |
|
|
/* Port Num */ (bus_softc->fe.targ_port & 0xff);
|
|
|
|
/*
|
|
* This is a bit of an API break/reversal, but if
|
|
* we're doing the random WWNN that's a little
|
|
* different anyway. So record what we're actually
|
|
* using with the frontend code so it's reported
|
|
* accurately.
|
|
*/
|
|
bus_softc->fe.wwnn =
|
|
ccb->knob.xport_specific.fc.wwnn;
|
|
bus_softc->fe.wwpn =
|
|
ccb->knob.xport_specific.fc.wwpn;
|
|
set_wwnn = 1;
|
|
#else /* RANDOM_WWNN */
|
|
/*
|
|
* If the user has specified a WWNN/WWPN, send them
|
|
* down to the SIM. Otherwise, record what the SIM
|
|
* has reported.
|
|
*/
|
|
if ((bus_softc->fe.wwnn != 0)
|
|
&& (bus_softc->fe.wwpn != 0)) {
|
|
ccb->knob.xport_specific.fc.wwnn =
|
|
bus_softc->fe.wwnn;
|
|
ccb->knob.xport_specific.fc.wwpn =
|
|
bus_softc->fe.wwpn;
|
|
set_wwnn = 1;
|
|
} else {
|
|
bus_softc->fe.wwnn =
|
|
ccb->knob.xport_specific.fc.wwnn;
|
|
bus_softc->fe.wwpn =
|
|
ccb->knob.xport_specific.fc.wwpn;
|
|
}
|
|
#endif /* RANDOM_WWNN */
|
|
|
|
|
|
if (set_wwnn != 0) {
|
|
printf("%s: %s new WWNN %#jx\n", __func__,
|
|
bus_softc->port_name,
|
|
ccb->knob.xport_specific.fc.wwnn);
|
|
printf("%s: %s new WWPN %#jx\n", __func__,
|
|
bus_softc->port_name,
|
|
ccb->knob.xport_specific.fc.wwpn);
|
|
}
|
|
} else {
|
|
printf("%s: %s has no valid WWNN/WWPN\n", __func__,
|
|
bus_softc->port_name);
|
|
}
|
|
}
|
|
ccb->ccb_h.func_code = XPT_SET_SIM_KNOB;
|
|
ccb->knob.xport_specific.valid = KNOB_VALID_ROLE;
|
|
if (set_wwnn != 0)
|
|
ccb->knob.xport_specific.valid |= KNOB_VALID_ADDRESS;
|
|
|
|
if (online != 0)
|
|
ccb->knob.xport_specific.fc.role = KNOB_ROLE_TARGET;
|
|
else
|
|
ccb->knob.xport_specific.fc.role = KNOB_ROLE_NONE;
|
|
|
|
|
|
CAM_SIM_LOCK(sim);
|
|
|
|
xpt_action(ccb);
|
|
|
|
CAM_SIM_UNLOCK(sim);
|
|
|
|
if ((ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
|
|
printf("%s: SIM %s (path id %d) target %s failed with "
|
|
"status %#x\n",
|
|
__func__, bus_softc->port_name, bus_softc->path_id,
|
|
(online != 0) ? "enable" : "disable",
|
|
ccb->ccb_h.status);
|
|
} else {
|
|
printf("%s: SIM %s (path id %d) target %s succeeded\n",
|
|
__func__, bus_softc->port_name, bus_softc->path_id,
|
|
(online != 0) ? "enable" : "disable");
|
|
}
|
|
|
|
free(ccb, M_TEMP);
|
|
xpt_free_path(path);
|
|
|
|
return;
|
|
}
|
|
|
|
static void
|
|
ctlfe_online(void *arg)
|
|
{
|
|
ctlfe_onoffline(arg, /*online*/ 1);
|
|
}
|
|
|
|
static void
|
|
ctlfe_offline(void *arg)
|
|
{
|
|
ctlfe_onoffline(arg, /*online*/ 0);
|
|
}
|
|
|
|
static int
|
|
ctlfe_targ_enable(void *arg, struct ctl_id targ_id)
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
ctlfe_targ_disable(void *arg, struct ctl_id targ_id)
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* This will get called to enable a LUN on every bus that is attached to
|
|
* CTL. So we only need to create a path/periph for this particular bus.
|
|
*/
|
|
static int
|
|
ctlfe_lun_enable(void *arg, struct ctl_id targ_id, int lun_id)
|
|
{
|
|
struct ctlfe_softc *bus_softc;
|
|
struct ctlfe_lun_softc *softc;
|
|
struct cam_path *path;
|
|
struct cam_periph *periph;
|
|
struct cam_sim *sim;
|
|
cam_status status;
|
|
|
|
|
|
bus_softc = (struct ctlfe_softc *)arg;
|
|
|
|
status = xpt_create_path_unlocked(&path, /*periph*/ NULL,
|
|
bus_softc->path_id,
|
|
targ_id.id,
|
|
lun_id);
|
|
/* XXX KDM need some way to return status to CTL here? */
|
|
if (status != CAM_REQ_CMP) {
|
|
printf("%s: could not create path, status %#x\n", __func__,
|
|
status);
|
|
return (1);
|
|
}
|
|
|
|
softc = malloc(sizeof(*softc), M_CTLFE, M_WAITOK | M_ZERO);
|
|
sim = xpt_path_sim(path);
|
|
mtx_lock(sim->mtx);
|
|
periph = cam_periph_find(path, "ctl");
|
|
if (periph != NULL) {
|
|
/* We've already got a periph, no need to alloc a new one. */
|
|
xpt_free_path(path);
|
|
free(softc, M_CTLFE);
|
|
mtx_unlock(sim->mtx);
|
|
return (0);
|
|
}
|
|
|
|
softc->parent_softc = bus_softc;
|
|
STAILQ_INSERT_TAIL(&bus_softc->lun_softc_list, softc, links);
|
|
|
|
status = cam_periph_alloc(ctlferegister,
|
|
ctlfeoninvalidate,
|
|
ctlfecleanup,
|
|
ctlfestart,
|
|
"ctl",
|
|
CAM_PERIPH_BIO,
|
|
path,
|
|
ctlfeasync,
|
|
0,
|
|
softc);
|
|
|
|
mtx_unlock(sim->mtx);
|
|
|
|
xpt_free_path(path);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* XXX KDM we disable LUN removal here. The problem is that the isp(4)
|
|
* driver doesn't currently handle LUN removal properly. We need to keep
|
|
* enough state here at the peripheral level even after LUNs have been
|
|
* removed inside CTL.
|
|
*
|
|
* Once the isp(4) driver is fixed, this can be re-enabled.
|
|
*/
|
|
static int
|
|
ctlfe_lun_disable(void *arg, struct ctl_id targ_id, int lun_id)
|
|
{
|
|
#ifdef NOTYET
|
|
struct ctlfe_softc *softc;
|
|
struct ctlfe_lun_softc *lun_softc;
|
|
|
|
softc = (struct ctlfe_softc *)arg;
|
|
|
|
mtx_lock(softc->sim->mtx);
|
|
STAILQ_FOREACH(lun_softc, &softc->lun_softc_list, links) {
|
|
struct cam_path *path;
|
|
|
|
path = lun_softc->periph->path;
|
|
|
|
if ((xpt_path_target_id(path) == targ_id.id)
|
|
&& (xpt_path_lun_id(path) == lun_id)) {
|
|
break;
|
|
}
|
|
}
|
|
if (lun_softc == NULL) {
|
|
mtx_unlock(softc->sim->mtx);
|
|
printf("%s: can't find target %d lun %d\n", __func__,
|
|
targ_id.id, lun_id);
|
|
return (1);
|
|
}
|
|
|
|
cam_periph_invalidate(lun_softc->periph);
|
|
|
|
mtx_unlock(softc->sim->mtx);
|
|
#endif
|
|
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
ctlfe_dump_sim(struct cam_sim *sim)
|
|
{
|
|
int i;
|
|
|
|
printf("%s%d: max tagged openings: %d, max dev openings: %d\n",
|
|
sim->sim_name, sim->unit_number,
|
|
sim->max_tagged_dev_openings, sim->max_dev_openings);
|
|
printf("%s%d: max_ccbs: %u, ccb_count: %u\n",
|
|
sim->sim_name, sim->unit_number,
|
|
sim->max_ccbs, sim->ccb_count);
|
|
printf("%s%d: ccb_freeq is %sempty\n",
|
|
sim->sim_name, sim->unit_number,
|
|
(SLIST_FIRST(&sim->ccb_freeq) == NULL) ? "" : "NOT ");
|
|
printf("%s%d: alloc_queue.entries %d, alloc_openings %d\n",
|
|
sim->sim_name, sim->unit_number,
|
|
sim->devq->alloc_queue.entries, sim->devq->alloc_openings);
|
|
printf("%s%d: qfrozen_cnt:", sim->sim_name, sim->unit_number);
|
|
for (i = 0; i < CAM_RL_VALUES; i++) {
|
|
printf("%s%u", (i != 0) ? ":" : "",
|
|
sim->devq->alloc_queue.qfrozen_cnt[i]);
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
/*
|
|
* Assumes that the SIM lock is held.
|
|
*/
|
|
static void
|
|
ctlfe_dump_queue(struct ctlfe_lun_softc *softc)
|
|
{
|
|
struct ccb_hdr *hdr;
|
|
struct cam_periph *periph;
|
|
int num_items;
|
|
|
|
periph = softc->periph;
|
|
num_items = 0;
|
|
|
|
TAILQ_FOREACH(hdr, &softc->work_queue, periph_links.tqe) {
|
|
union ctl_io *io;
|
|
|
|
io = hdr->io_ptr;
|
|
|
|
num_items++;
|
|
|
|
/*
|
|
* This can happen when we get an ATIO but can't allocate
|
|
* a ctl_io. See the XPT_ACCEPT_TARGET_IO case in ctlfedone().
|
|
*/
|
|
if (io == NULL) {
|
|
struct ccb_scsiio *csio;
|
|
|
|
csio = (struct ccb_scsiio *)hdr;
|
|
|
|
xpt_print(periph->path, "CCB %#x ctl_io allocation "
|
|
"failed\n", csio->tag_id);
|
|
continue;
|
|
}
|
|
|
|
/*
|
|
* Only regular SCSI I/O is put on the work
|
|
* queue, so we can print sense here. There may be no
|
|
* sense if it's no the queue for a DMA, but this serves to
|
|
* print out the CCB as well.
|
|
*
|
|
* XXX KDM switch this over to scsi_sense_print() when
|
|
* CTL is merged in with CAM.
|
|
*/
|
|
ctl_io_error_print(io, NULL);
|
|
|
|
/*
|
|
* We're sending status back to the
|
|
* initiator, so we're on the queue waiting
|
|
* for a CTIO to do that.
|
|
*/
|
|
if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)
|
|
continue;
|
|
|
|
/*
|
|
* Otherwise, we're on the queue waiting to
|
|
* do a data transfer.
|
|
*/
|
|
xpt_print(periph->path, "Total %u, Current %u, Resid %u\n",
|
|
io->scsiio.kern_total_len, io->scsiio.kern_data_len,
|
|
io->scsiio.kern_data_resid);
|
|
}
|
|
|
|
xpt_print(periph->path, "%d requests total waiting for CCBs\n",
|
|
num_items);
|
|
xpt_print(periph->path, "%ju CCBs oustanding (%ju allocated, %ju "
|
|
"freed)\n", (uintmax_t)(softc->ccbs_alloced -
|
|
softc->ccbs_freed), (uintmax_t)softc->ccbs_alloced,
|
|
(uintmax_t)softc->ccbs_freed);
|
|
xpt_print(periph->path, "%ju CTIOs outstanding (%ju sent, %ju "
|
|
"returned\n", (uintmax_t)(softc->ctios_sent -
|
|
softc->ctios_returned), softc->ctios_sent,
|
|
softc->ctios_returned);
|
|
}
|
|
|
|
/*
|
|
* This function is called when we fail to get a CCB for a DMA or status return
|
|
* to the initiator within the specified time period.
|
|
*
|
|
* The callout code should insure that we hold the sim mutex here.
|
|
*/
|
|
static void
|
|
ctlfe_dma_timeout(void *arg)
|
|
{
|
|
struct ctlfe_lun_softc *softc;
|
|
struct cam_periph *periph;
|
|
struct cam_sim *sim;
|
|
int num_queued;
|
|
|
|
softc = (struct ctlfe_lun_softc *)arg;
|
|
periph = softc->periph;
|
|
sim = xpt_path_sim(periph->path);
|
|
num_queued = 0;
|
|
|
|
/*
|
|
* Nothing to do...
|
|
*/
|
|
if (TAILQ_FIRST(&softc->work_queue) == NULL) {
|
|
xpt_print(periph->path, "TIMEOUT triggered after %d "
|
|
"seconds, but nothing on work queue??\n",
|
|
CTLFE_DMA_TIMEOUT);
|
|
return;
|
|
}
|
|
|
|
xpt_print(periph->path, "TIMEOUT (%d seconds) waiting for DMA to "
|
|
"start\n", CTLFE_DMA_TIMEOUT);
|
|
|
|
ctlfe_dump_queue(softc);
|
|
|
|
ctlfe_dump_sim(sim);
|
|
|
|
xpt_print(periph->path, "calling xpt_schedule() to attempt to "
|
|
"unstick our queue\n");
|
|
|
|
xpt_schedule(periph, /*priority*/ 1);
|
|
|
|
xpt_print(periph->path, "xpt_schedule() call complete\n");
|
|
}
|
|
|
|
/*
|
|
* Datamove/done routine called by CTL. Put ourselves on the queue to
|
|
* receive a CCB from CAM so we can queue the continue I/O request down
|
|
* to the adapter.
|
|
*/
|
|
static void
|
|
ctlfe_datamove_done(union ctl_io *io)
|
|
{
|
|
union ccb *ccb;
|
|
struct cam_sim *sim;
|
|
struct cam_periph *periph;
|
|
struct ctlfe_lun_softc *softc;
|
|
|
|
ccb = io->io_hdr.ctl_private[CTL_PRIV_FRONTEND].ptr;
|
|
|
|
sim = xpt_path_sim(ccb->ccb_h.path);
|
|
|
|
mtx_lock(sim->mtx);
|
|
|
|
periph = xpt_path_periph(ccb->ccb_h.path);
|
|
|
|
softc = (struct ctlfe_lun_softc *)periph->softc;
|
|
|
|
if (io->io_hdr.io_type == CTL_IO_TASK) {
|
|
/*
|
|
* Task management commands don't require any further
|
|
* communication back to the adapter. Requeue the CCB
|
|
* to the adapter, and free the CTL I/O.
|
|
*/
|
|
xpt_print(ccb->ccb_h.path, "%s: returning task I/O "
|
|
"tag %#x seq %#x\n", __func__,
|
|
ccb->cin1.tag_id, ccb->cin1.seq_id);
|
|
/*
|
|
* Send the notify acknowledge down to the SIM, to let it
|
|
* know we processed the task management command.
|
|
*/
|
|
ccb->ccb_h.status = CAM_REQ_INPROG;
|
|
ccb->ccb_h.func_code = XPT_NOTIFY_ACKNOWLEDGE;
|
|
xpt_action(ccb);
|
|
ctl_free_io(io);
|
|
} else {
|
|
if ((io->io_hdr.status & CTL_STATUS_MASK) != CTL_STATUS_NONE)
|
|
io->io_hdr.flags |= CTL_FLAG_STATUS_QUEUED;
|
|
else
|
|
io->io_hdr.flags |= CTL_FLAG_DMA_QUEUED;
|
|
|
|
TAILQ_INSERT_TAIL(&softc->work_queue, &ccb->ccb_h,
|
|
periph_links.tqe);
|
|
|
|
/*
|
|
* Reset the timeout for our latest active DMA.
|
|
*/
|
|
callout_reset(&softc->dma_callout,
|
|
CTLFE_DMA_TIMEOUT * hz,
|
|
ctlfe_dma_timeout, softc);
|
|
/*
|
|
* Ask for the CAM transport layer to send us a CCB to do
|
|
* the DMA or send status, unless ctlfe_dma_enabled is set
|
|
* to 0.
|
|
*/
|
|
if (ctlfe_dma_enabled != 0)
|
|
xpt_schedule(periph, /*priority*/ 1);
|
|
}
|
|
|
|
mtx_unlock(sim->mtx);
|
|
}
|
|
|
|
static void
|
|
ctlfe_dump(void)
|
|
{
|
|
struct ctlfe_softc *bus_softc;
|
|
|
|
STAILQ_FOREACH(bus_softc, &ctlfe_softc_list, links) {
|
|
struct ctlfe_lun_softc *lun_softc;
|
|
|
|
ctlfe_dump_sim(bus_softc->sim);
|
|
|
|
STAILQ_FOREACH(lun_softc, &bus_softc->lun_softc_list, links) {
|
|
ctlfe_dump_queue(lun_softc);
|
|
}
|
|
}
|
|
}
|