843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev#pragma ident "%Z%%M% %I% %E% SMI"

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/conf.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/param.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/hypervisor.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/xen_mmu.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/kmem.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <vm/seg_kmem.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/debug.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/modctl.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/autoconf.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/ddi_impldefs.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/ddi_subrdefs.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/ddi.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/sunddi.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/sunndi.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/sunldi.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/fs/dv_node.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/evtchn_impl.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/gnttab.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/avintr.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/psm.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/spl.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/promif.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/list.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/bootconf.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/bootsvcs.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/bootinfo.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/note.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/xen_mmu.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <xen/sys/xenbus_impl.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <xen/sys/xendev.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <vm/hat_i86.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <sys/scsi/generic/inquiry.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <util/sscanf.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev#include <xen/public/io/xs_wire.h>

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic void xvdi_ring_init_sring(xendev_ring_t *);

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic void xvdi_ring_init_front_ring(xendev_ring_t *, size_t, size_t);

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic void xvdi_ring_init_back_ring(xendev_ring_t *, size_t, size_t);

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic void xvdi_reinit_ring(dev_info_t *, grant_ref_t *, xendev_ring_t *);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic int i_xvdi_add_watches(dev_info_t *);

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic void i_xvdi_rem_watches(dev_info_t *);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic int i_xvdi_add_watch_oestate(dev_info_t *);

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic void i_xvdi_rem_watch_oestate(dev_info_t *);

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic void i_xvdi_oestate_cb(struct xenbus_device *, XenbusState);

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic void i_xvdi_oestate_handler(void *);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic int i_xvdi_add_watch_hpstate(dev_info_t *);

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic void i_xvdi_rem_watch_hpstate(dev_info_t *);

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic void i_xvdi_hpstate_cb(struct xenbus_watch *, const char **,

843e19887f64dde75055cf8842fc4db2171eff45johnlev unsigned int);

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic void i_xvdi_hpstate_handler(void *);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic int i_xvdi_add_watch_bepath(dev_info_t *);

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic void i_xvdi_rem_watch_bepath(dev_info_t *);

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic void i_xvdi_bepath_cb(struct xenbus_watch *, const char **,

843e19887f64dde75055cf8842fc4db2171eff45johnlev unsigned in);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic void xendev_offline_device(void *);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic void i_xvdi_probe_path_cb(struct xenbus_watch *, const char **,

843e19887f64dde75055cf8842fc4db2171eff45johnlev unsigned int);

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic void i_xvdi_probe_path_handler(void *);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevtypedef struct xd_cfg {

843e19887f64dde75055cf8842fc4db2171eff45johnlev xendev_devclass_t devclass;

843e19887f64dde75055cf8842fc4db2171eff45johnlev char *xsdev;

843e19887f64dde75055cf8842fc4db2171eff45johnlev char *xs_path_fe;

843e19887f64dde75055cf8842fc4db2171eff45johnlev char *xs_path_be;

843e19887f64dde75055cf8842fc4db2171eff45johnlev char *node_fe;

843e19887f64dde75055cf8842fc4db2171eff45johnlev char *node_be;

843e19887f64dde75055cf8842fc4db2171eff45johnlev char *device_type;

843e19887f64dde75055cf8842fc4db2171eff45johnlev int xd_ipl;

843e19887f64dde75055cf8842fc4db2171eff45johnlev int flags;

843e19887f64dde75055cf8842fc4db2171eff45johnlev} i_xd_cfg_t;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev#define XD_DOM_ZERO 0x01 /* dom0 only. */

843e19887f64dde75055cf8842fc4db2171eff45johnlev#define XD_DOM_GUEST 0x02 /* Guest domains (i.e. non-dom0). */

843e19887f64dde75055cf8842fc4db2171eff45johnlev#define XD_DOM_IO 0x04 /* IO domains. */

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev#define XD_DOM_ALL (XD_DOM_ZERO | XD_DOM_GUEST)

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic i_xd_cfg_t xdci[] = {

843e19887f64dde75055cf8842fc4db2171eff45johnlev { XEN_CONSOLE, NULL, NULL, NULL, "xencons", NULL,

843e19887f64dde75055cf8842fc4db2171eff45johnlev "console", IPL_CONS, XD_DOM_ALL, },

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev { XEN_VNET, "vif", "device/vif", "backend/vif", "xnf", "xnb",

843e19887f64dde75055cf8842fc4db2171eff45johnlev "network", IPL_VIF, XD_DOM_ALL, },

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev { XEN_VBLK, "vbd", "device/vbd", "backend/vbd", "xdf", "xdb",

843e19887f64dde75055cf8842fc4db2171eff45johnlev "block", IPL_VBD, XD_DOM_ALL, },

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev { XEN_XENBUS, NULL, NULL, NULL, "xenbus", NULL,

843e19887f64dde75055cf8842fc4db2171eff45johnlev NULL, 0, XD_DOM_ALL, },

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev { XEN_DOMCAPS, NULL, NULL, NULL, "domcaps", NULL,

843e19887f64dde75055cf8842fc4db2171eff45johnlev NULL, 0, XD_DOM_ALL, },

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev { XEN_BALLOON, NULL, NULL, NULL, "balloon", NULL,

843e19887f64dde75055cf8842fc4db2171eff45johnlev NULL, 0, XD_DOM_ALL, },

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev { XEN_EVTCHN, NULL, NULL, NULL, "evtchn", NULL,

843e19887f64dde75055cf8842fc4db2171eff45johnlev NULL, 0, XD_DOM_ZERO, },

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev { XEN_PRIVCMD, NULL, NULL, NULL, "privcmd", NULL,

843e19887f64dde75055cf8842fc4db2171eff45johnlev NULL, 0, XD_DOM_ZERO, },

843e19887f64dde75055cf8842fc4db2171eff45johnlev};

843e19887f64dde75055cf8842fc4db2171eff45johnlev#define NXDC (sizeof (xdci) / sizeof (xdci[0]))

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic void i_xvdi_enum_fe(dev_info_t *, i_xd_cfg_t *);

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic void i_xvdi_enum_be(dev_info_t *, i_xd_cfg_t *);

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic void i_xvdi_enum_worker(dev_info_t *, i_xd_cfg_t *, char *);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic ddi_device_acc_attr_t xendev_dc_accattr = {

843e19887f64dde75055cf8842fc4db2171eff45johnlev DDI_DEVICE_ATTR_V0, DDI_NEVERSWAP_ACC, DDI_STRICTORDER_ACC

843e19887f64dde75055cf8842fc4db2171eff45johnlev};

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic ddi_dma_attr_t xendev_dc_dmaattr = {

843e19887f64dde75055cf8842fc4db2171eff45johnlev DMA_ATTR_V0, /* version of this structure */

843e19887f64dde75055cf8842fc4db2171eff45johnlev 0, /* lowest usable address */

843e19887f64dde75055cf8842fc4db2171eff45johnlev 0xffffffffffffffffULL, /* highest usable address */

843e19887f64dde75055cf8842fc4db2171eff45johnlev 0x7fffffff, /* maximum DMAable byte count */

843e19887f64dde75055cf8842fc4db2171eff45johnlev MMU_PAGESIZE, /* alignment in bytes */

843e19887f64dde75055cf8842fc4db2171eff45johnlev 0x7ff, /* bitmap of burst sizes */

843e19887f64dde75055cf8842fc4db2171eff45johnlev 1, /* minimum transfer */

843e19887f64dde75055cf8842fc4db2171eff45johnlev 0xffffffffU, /* maximum transfer */

843e19887f64dde75055cf8842fc4db2171eff45johnlev 0xffffffffffffffffULL, /* maximum segment length */

843e19887f64dde75055cf8842fc4db2171eff45johnlev 1, /* maximum number of segments */

843e19887f64dde75055cf8842fc4db2171eff45johnlev 1, /* granularity */

843e19887f64dde75055cf8842fc4db2171eff45johnlev 0, /* flags (reserved) */

843e19887f64dde75055cf8842fc4db2171eff45johnlev};

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic dev_info_t *xendev_dip = NULL;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev#define XVDI_DBG_STATE 0x01

843e19887f64dde75055cf8842fc4db2171eff45johnlev#define XVDI_DBG_PROBE 0x02

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev#ifdef DEBUG

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic int i_xvdi_debug = 0;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev#define XVDI_DPRINTF(flag, format, ...) \

843e19887f64dde75055cf8842fc4db2171eff45johnlev{ \

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (i_xvdi_debug & (flag)) \

843e19887f64dde75055cf8842fc4db2171eff45johnlev prom_printf((format), __VA_ARGS__); \

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev#else

843e19887f64dde75055cf8842fc4db2171eff45johnlev#define XVDI_DPRINTF(flag, format, ...)

843e19887f64dde75055cf8842fc4db2171eff45johnlev#endif /* DEBUG */

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic i_xd_cfg_t *

843e19887f64dde75055cf8842fc4db2171eff45johnlevi_xvdi_devclass2cfg(xendev_devclass_t devclass)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev i_xd_cfg_t *xdcp;

843e19887f64dde75055cf8842fc4db2171eff45johnlev int i;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev for (i = 0, xdcp = xdci; i < NXDC; i++, xdcp++)

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (xdcp->devclass == devclass)

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (xdcp);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevxvdi_init_dev(dev_info_t *dip)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev xendev_devclass_t devcls;

843e19887f64dde75055cf8842fc4db2171eff45johnlev int vdevnum;

843e19887f64dde75055cf8842fc4db2171eff45johnlev domid_t domid;

843e19887f64dde75055cf8842fc4db2171eff45johnlev struct xendev_ppd *pdp;

843e19887f64dde75055cf8842fc4db2171eff45johnlev i_xd_cfg_t *xdcp;

843e19887f64dde75055cf8842fc4db2171eff45johnlev boolean_t backend;

843e19887f64dde75055cf8842fc4db2171eff45johnlev char xsnamebuf[TYPICALMAXPATHLEN];

843e19887f64dde75055cf8842fc4db2171eff45johnlev char *xsname;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev devcls = ddi_prop_get_int(DDI_DEV_T_ANY, dip,

843e19887f64dde75055cf8842fc4db2171eff45johnlev DDI_PROP_DONTPASS, "devclass", XEN_INVAL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev vdevnum = ddi_prop_get_int(DDI_DEV_T_ANY, dip,

843e19887f64dde75055cf8842fc4db2171eff45johnlev DDI_PROP_DONTPASS, "vdev", -1);

843e19887f64dde75055cf8842fc4db2171eff45johnlev domid = (domid_t)ddi_prop_get_int(DDI_DEV_T_ANY, dip,

843e19887f64dde75055cf8842fc4db2171eff45johnlev DDI_PROP_DONTPASS, "domain", DOMID_SELF);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev backend = (domid != DOMID_SELF);

843e19887f64dde75055cf8842fc4db2171eff45johnlev xdcp = i_xvdi_devclass2cfg(devcls);

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (xdcp->device_type != NULL)

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) ndi_prop_update_string(DDI_DEV_T_NONE, dip,

843e19887f64dde75055cf8842fc4db2171eff45johnlev "device_type", xdcp->device_type);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp = kmem_zalloc(sizeof (*pdp), KM_SLEEP);

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp->xd_domain = domid;

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp->xd_vdevnum = vdevnum;

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp->xd_devclass = devcls;

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp->xd_evtchn = INVALID_EVTCHN;

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_init(&pdp->xd_lk, NULL, MUTEX_DRIVER, NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ddi_set_parent_data(dip, pdp);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /*

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (vdevnum == -1) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) ndi_prop_update_string(DDI_DEV_T_NONE, dip,

843e19887f64dde75055cf8842fc4db2171eff45johnlev "unit-address", "0");

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (devcls == XEN_CONSOLE)

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) ndi_prop_update_string(DDI_DEV_T_NONE, dip,

843e19887f64dde75055cf8842fc4db2171eff45johnlev "pm-hardware-state", "needs-suspend-resume");

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (DDI_SUCCESS);

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /*

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) ndi_prop_update_string(DDI_DEV_T_NONE, dip,

843e19887f64dde75055cf8842fc4db2171eff45johnlev "pm-hardware-state", "needs-suspend-resume");

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev xsname = xsnamebuf;

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (!backend)

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) snprintf(xsnamebuf, sizeof (xsnamebuf),

843e19887f64dde75055cf8842fc4db2171eff45johnlev "%s/%d", xdcp->xs_path_fe, vdevnum);

843e19887f64dde75055cf8842fc4db2171eff45johnlev else

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) snprintf(xsnamebuf, sizeof (xsnamebuf),

843e19887f64dde75055cf8842fc4db2171eff45johnlev "%s/%d/%d", xdcp->xs_path_be, domid, vdevnum);

1d03c31e0733adea0edef54f0d5d2ea9639ecd2ajohnlev if ((xenbus_read_driver_state(xsname) >= XenbusStateClosing)) {

1d03c31e0733adea0edef54f0d5d2ea9639ecd2ajohnlev /* Don't try to init a dev that may be closing */

1d03c31e0733adea0edef54f0d5d2ea9639ecd2ajohnlev mutex_destroy(&pdp->xd_lk);

1d03c31e0733adea0edef54f0d5d2ea9639ecd2ajohnlev kmem_free(pdp, sizeof (*pdp));

1d03c31e0733adea0edef54f0d5d2ea9639ecd2ajohnlev ddi_set_parent_data(dip, NULL);

1d03c31e0733adea0edef54f0d5d2ea9639ecd2ajohnlev return (DDI_FAILURE);

1d03c31e0733adea0edef54f0d5d2ea9639ecd2ajohnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp->xd_xsdev.nodename = i_ddi_strdup(xsname, KM_SLEEP);

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp->xd_xsdev.devicetype = xdcp->xsdev;

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp->xd_xsdev.frontend = (backend ? 0 : 1);

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp->xd_xsdev.data = dip;

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp->xd_xsdev.otherend_id = (backend ? domid : -1);

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (i_xvdi_add_watches(dip) != DDI_SUCCESS) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev cmn_err(CE_WARN, "xvdi_init_dev: "

843e19887f64dde75055cf8842fc4db2171eff45johnlev "cannot add watches for %s", xsname);

843e19887f64dde75055cf8842fc4db2171eff45johnlev xvdi_uninit_dev(dip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (DDI_FAILURE);

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /*

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (!backend) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev void *prop_str;

843e19887f64dde75055cf8842fc4db2171eff45johnlev unsigned int prop_len, addr;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev switch (devcls) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev case XEN_VNET:

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (xenbus_read(XBT_NULL, xsname, "mac", &prop_str,

843e19887f64dde75055cf8842fc4db2171eff45johnlev &prop_len) == 0) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) ndi_prop_update_string(DDI_DEV_T_NONE,

843e19887f64dde75055cf8842fc4db2171eff45johnlev dip, "mac", prop_str);

843e19887f64dde75055cf8842fc4db2171eff45johnlev kmem_free(prop_str, prop_len);

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev prop_str = NULL;

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (xenbus_scanf(XBT_NULL, xsname, "handle", "%u",

843e19887f64dde75055cf8842fc4db2171eff45johnlev &addr) == 0) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev char unitaddr[9]; /* hold 32-bit hex */

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) snprintf(unitaddr, 9, "%x", addr);

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) ndi_prop_update_string(DDI_DEV_T_NONE,

843e19887f64dde75055cf8842fc4db2171eff45johnlev dip, "unit-address", unitaddr);

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev break;

843e19887f64dde75055cf8842fc4db2171eff45johnlev case XEN_VBLK:

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (xenbus_read(XBT_NULL, pdp->xd_xsdev.otherend,

843e19887f64dde75055cf8842fc4db2171eff45johnlev "dev", &prop_str, &prop_len) == 0) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) ndi_prop_update_string(DDI_DEV_T_NONE,

843e19887f64dde75055cf8842fc4db2171eff45johnlev dip, "unit-address", prop_str);

843e19887f64dde75055cf8842fc4db2171eff45johnlev kmem_free(prop_str, prop_len);

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev break;

843e19887f64dde75055cf8842fc4db2171eff45johnlev default:

843e19887f64dde75055cf8842fc4db2171eff45johnlev break;

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (DDI_SUCCESS);

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevxvdi_uninit_dev(dev_info_t *dip)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev struct xendev_ppd *pdp = ddi_get_parent_data(dip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (pdp != NULL) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev /* Remove any registered callbacks. */

843e19887f64dde75055cf8842fc4db2171eff45johnlev xvdi_remove_event_handler(dip, NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /* Remove any registered watches. */

843e19887f64dde75055cf8842fc4db2171eff45johnlev i_xvdi_rem_watches(dip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

1d03c31e0733adea0edef54f0d5d2ea9639ecd2ajohnlev /* tell other end to close */

1d03c31e0733adea0edef54f0d5d2ea9639ecd2ajohnlev (void) xvdi_switch_state(dip, XBT_NULL, XenbusStateClosed);

1d03c31e0733adea0edef54f0d5d2ea9639ecd2ajohnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (pdp->xd_xsdev.nodename != NULL)

843e19887f64dde75055cf8842fc4db2171eff45johnlev kmem_free((char *)(pdp->xd_xsdev.nodename),

843e19887f64dde75055cf8842fc4db2171eff45johnlev strlen(pdp->xd_xsdev.nodename) + 1);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev ddi_set_parent_data(dip, NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_destroy(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev kmem_free(pdp, sizeof (*pdp));

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevxvdi_bind_evtchn(dev_info_t *dip, evtchn_port_t evtchn)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev struct xendev_ppd *pdp;

843e19887f64dde75055cf8842fc4db2171eff45johnlev domid_t oeid;

843e19887f64dde75055cf8842fc4db2171eff45johnlev int r;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp = ddi_get_parent_data(dip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(pdp != NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(pdp->xd_evtchn == INVALID_EVTCHN);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_enter(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (pdp->xd_devclass == XEN_CONSOLE) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (!DOMAIN_IS_INITDOMAIN(xen_info)) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp->xd_evtchn = xen_info->console.domU.evtchn;

843e19887f64dde75055cf8842fc4db2171eff45johnlev } else {

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp->xd_evtchn = INVALID_EVTCHN;

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_exit(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (DDI_SUCCESS);

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev } else {

843e19887f64dde75055cf8842fc4db2171eff45johnlev oeid = pdp->xd_xsdev.otherend_id;

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (oeid == (domid_t)-1) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_exit(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (DDI_FAILURE);

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev if ((r = xen_bind_interdomain(oeid, evtchn, &pdp->xd_evtchn))) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev xvdi_dev_error(dip, r, "bind event channel");

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_exit(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (DDI_FAILURE);

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp->xd_ispec.intrspec_vec = ec_bind_evtchn_to_irq(pdp->xd_evtchn);

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_exit(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (DDI_SUCCESS);

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevxvdi_alloc_evtchn(dev_info_t *dip)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev struct xendev_ppd *pdp;

843e19887f64dde75055cf8842fc4db2171eff45johnlev domid_t oeid;

843e19887f64dde75055cf8842fc4db2171eff45johnlev int rv;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp = ddi_get_parent_data(dip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(pdp != NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(pdp->xd_evtchn == INVALID_EVTCHN);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_enter(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (pdp->xd_devclass == XEN_CONSOLE) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (!DOMAIN_IS_INITDOMAIN(xen_info)) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp->xd_evtchn = xen_info->console.domU.evtchn;

843e19887f64dde75055cf8842fc4db2171eff45johnlev } else {

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp->xd_evtchn = INVALID_EVTCHN;

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_exit(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (DDI_SUCCESS);

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev } else {

843e19887f64dde75055cf8842fc4db2171eff45johnlev oeid = pdp->xd_xsdev.otherend_id;

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (oeid == (domid_t)-1) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_exit(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (DDI_FAILURE);

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev if ((rv = xen_alloc_unbound_evtchn(oeid, &pdp->xd_evtchn))) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev xvdi_dev_error(dip, rv, "bind event channel");

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_exit(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (DDI_FAILURE);

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp->xd_ispec.intrspec_vec = ec_bind_evtchn_to_irq(pdp->xd_evtchn);

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_exit(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (DDI_SUCCESS);

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevxvdi_free_evtchn(dev_info_t *dip)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev struct xendev_ppd *pdp;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp = ddi_get_parent_data(dip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(pdp != NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_enter(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (pdp->xd_evtchn != INVALID_EVTCHN) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev ec_unbind_irq(pdp->xd_ispec.intrspec_vec);

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp->xd_evtchn = INVALID_EVTCHN;

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp->xd_ispec.intrspec_vec = 0;

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_exit(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevxvdi_map_ring(dev_info_t *dip, size_t nentry, size_t entrysize,

843e19887f64dde75055cf8842fc4db2171eff45johnlev grant_ref_t gref, xendev_ring_t **ringpp)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev domid_t oeid;

843e19887f64dde75055cf8842fc4db2171eff45johnlev gnttab_map_grant_ref_t mapop;

843e19887f64dde75055cf8842fc4db2171eff45johnlev gnttab_unmap_grant_ref_t unmapop;

843e19887f64dde75055cf8842fc4db2171eff45johnlev caddr_t ringva;

843e19887f64dde75055cf8842fc4db2171eff45johnlev ddi_acc_hdl_t *ap;

843e19887f64dde75055cf8842fc4db2171eff45johnlev ddi_acc_impl_t *iap;

843e19887f64dde75055cf8842fc4db2171eff45johnlev xendev_ring_t *ring;

843e19887f64dde75055cf8842fc4db2171eff45johnlev int err;

843e19887f64dde75055cf8842fc4db2171eff45johnlev char errstr[] = "mapping in ring buffer";

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev ring = kmem_zalloc(sizeof (xendev_ring_t), KM_SLEEP);

843e19887f64dde75055cf8842fc4db2171eff45johnlev oeid = xvdi_get_oeid(dip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /* alloc va in backend dom for ring buffer */

843e19887f64dde75055cf8842fc4db2171eff45johnlev ringva = vmem_xalloc(heap_arena, PAGESIZE, PAGESIZE,

843e19887f64dde75055cf8842fc4db2171eff45johnlev 0, 0, 0, 0, VM_SLEEP);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /* map in ring page */

843e19887f64dde75055cf8842fc4db2171eff45johnlev hat_prepare_mapping(kas.a_hat, ringva);

843e19887f64dde75055cf8842fc4db2171eff45johnlev mapop.host_addr = (uint64_t)(uintptr_t)ringva;

843e19887f64dde75055cf8842fc4db2171eff45johnlev mapop.flags = GNTMAP_host_map;

843e19887f64dde75055cf8842fc4db2171eff45johnlev mapop.ref = gref;

843e19887f64dde75055cf8842fc4db2171eff45johnlev mapop.dom = oeid;

843e19887f64dde75055cf8842fc4db2171eff45johnlev err = HYPERVISOR_grant_table_op(GNTTABOP_map_grant_ref, &mapop, 1);

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (err) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev xvdi_fatal_error(dip, err, errstr);

843e19887f64dde75055cf8842fc4db2171eff45johnlev goto errout1;

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (mapop.status != 0) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev xvdi_fatal_error(dip, err, errstr);

843e19887f64dde75055cf8842fc4db2171eff45johnlev goto errout2;

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev ring->xr_vaddr = ringva;

843e19887f64dde75055cf8842fc4db2171eff45johnlev ring->xr_grant_hdl = mapop.handle;

843e19887f64dde75055cf8842fc4db2171eff45johnlev ring->xr_gref = gref;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /*

843e19887f64dde75055cf8842fc4db2171eff45johnlev ring->xr_acc_hdl = impl_acc_hdl_alloc(KM_SLEEP, NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ap = impl_acc_hdl_get(ring->xr_acc_hdl);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ap->ah_vers = VERS_ACCHDL;

843e19887f64dde75055cf8842fc4db2171eff45johnlev ap->ah_dip = dip;

843e19887f64dde75055cf8842fc4db2171eff45johnlev ap->ah_xfermodes = DDI_DMA_CONSISTENT;

843e19887f64dde75055cf8842fc4db2171eff45johnlev ap->ah_acc = xendev_dc_accattr;

843e19887f64dde75055cf8842fc4db2171eff45johnlev iap = (ddi_acc_impl_t *)ap->ah_platform_private;

843e19887f64dde75055cf8842fc4db2171eff45johnlev iap->ahi_acc_attr |= DDI_ACCATTR_CPU_VADDR;

843e19887f64dde75055cf8842fc4db2171eff45johnlev impl_acc_hdl_init(ap);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ap->ah_offset = 0;

843e19887f64dde75055cf8842fc4db2171eff45johnlev ap->ah_len = (off_t)PAGESIZE;

843e19887f64dde75055cf8842fc4db2171eff45johnlev ap->ah_addr = ring->xr_vaddr;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /* init backend ring */

843e19887f64dde75055cf8842fc4db2171eff45johnlev xvdi_ring_init_back_ring(ring, nentry, entrysize);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev *ringpp = ring;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (DDI_SUCCESS);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnleverrout2:

843e19887f64dde75055cf8842fc4db2171eff45johnlev /* unmap ring page */

843e19887f64dde75055cf8842fc4db2171eff45johnlev unmapop.host_addr = (uint64_t)(uintptr_t)ringva;

843e19887f64dde75055cf8842fc4db2171eff45johnlev unmapop.handle = ring->xr_grant_hdl;

843e19887f64dde75055cf8842fc4db2171eff45johnlev unmapop.dev_bus_addr = NULL;

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) HYPERVISOR_grant_table_op(GNTTABOP_unmap_grant_ref, &unmapop, 1);

843e19887f64dde75055cf8842fc4db2171eff45johnlev hat_release_mapping(kas.a_hat, ringva);

843e19887f64dde75055cf8842fc4db2171eff45johnleverrout1:

843e19887f64dde75055cf8842fc4db2171eff45johnlev vmem_xfree(heap_arena, ringva, PAGESIZE);

843e19887f64dde75055cf8842fc4db2171eff45johnlev kmem_free(ring, sizeof (xendev_ring_t));

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (DDI_FAILURE);

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevxvdi_unmap_ring(xendev_ring_t *ring)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev gnttab_unmap_grant_ref_t unmapop;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT((ring != NULL) && (ring->xr_vaddr != NULL));

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev impl_acc_hdl_free(ring->xr_acc_hdl);

843e19887f64dde75055cf8842fc4db2171eff45johnlev unmapop.host_addr = (uint64_t)(uintptr_t)ring->xr_vaddr;

843e19887f64dde75055cf8842fc4db2171eff45johnlev unmapop.handle = ring->xr_grant_hdl;

843e19887f64dde75055cf8842fc4db2171eff45johnlev unmapop.dev_bus_addr = NULL;

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) HYPERVISOR_grant_table_op(GNTTABOP_unmap_grant_ref, &unmapop, 1);

843e19887f64dde75055cf8842fc4db2171eff45johnlev hat_release_mapping(kas.a_hat, ring->xr_vaddr);

843e19887f64dde75055cf8842fc4db2171eff45johnlev vmem_xfree(heap_arena, ring->xr_vaddr, PAGESIZE);

843e19887f64dde75055cf8842fc4db2171eff45johnlev kmem_free(ring, sizeof (xendev_ring_t));

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic void

843e19887f64dde75055cf8842fc4db2171eff45johnlevxvdi_reinit_ring(dev_info_t *dip, grant_ref_t *gref, xendev_ring_t *ringp)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev paddr_t rpaddr;

843e19887f64dde75055cf8842fc4db2171eff45johnlev maddr_t rmaddr;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT((ringp != NULL) && (ringp->xr_paddr != 0));

843e19887f64dde75055cf8842fc4db2171eff45johnlev rpaddr = ringp->xr_paddr;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev rmaddr = DOMAIN_IS_INITDOMAIN(xen_info) ? rpaddr : pa_to_ma(rpaddr);

843e19887f64dde75055cf8842fc4db2171eff45johnlev gnttab_grant_foreign_access_ref(ringp->xr_gref, xvdi_get_oeid(dip),

843e19887f64dde75055cf8842fc4db2171eff45johnlev rmaddr >> PAGESHIFT, 0);

843e19887f64dde75055cf8842fc4db2171eff45johnlev *gref = ringp->xr_gref;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /* init frontend ring */

843e19887f64dde75055cf8842fc4db2171eff45johnlev xvdi_ring_init_sring(ringp);

843e19887f64dde75055cf8842fc4db2171eff45johnlev xvdi_ring_init_front_ring(ringp, ringp->xr_sring.fr.nr_ents,

843e19887f64dde75055cf8842fc4db2171eff45johnlev ringp->xr_entry_size);

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevxvdi_alloc_ring(dev_info_t *dip, size_t nentry, size_t entrysize,

843e19887f64dde75055cf8842fc4db2171eff45johnlev grant_ref_t *gref, xendev_ring_t **ringpp)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev size_t len;

843e19887f64dde75055cf8842fc4db2171eff45johnlev xendev_ring_t *ring;

843e19887f64dde75055cf8842fc4db2171eff45johnlev ddi_dma_cookie_t dma_cookie;

843e19887f64dde75055cf8842fc4db2171eff45johnlev uint_t ncookies;

843e19887f64dde75055cf8842fc4db2171eff45johnlev grant_ref_t ring_gref;

843e19887f64dde75055cf8842fc4db2171eff45johnlev domid_t oeid;

843e19887f64dde75055cf8842fc4db2171eff45johnlev maddr_t rmaddr;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (*ringpp) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev xvdi_reinit_ring(dip, gref, *ringpp);

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (DDI_SUCCESS);

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev *ringpp = ring = kmem_zalloc(sizeof (xendev_ring_t), KM_SLEEP);

843e19887f64dde75055cf8842fc4db2171eff45johnlev oeid = xvdi_get_oeid(dip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /*

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (ddi_dma_alloc_handle(dip, &xendev_dc_dmaattr, DDI_DMA_SLEEP,

843e19887f64dde75055cf8842fc4db2171eff45johnlev 0, &ring->xr_dma_hdl) != DDI_SUCCESS)

843e19887f64dde75055cf8842fc4db2171eff45johnlev goto err;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (ddi_dma_mem_alloc(ring->xr_dma_hdl, PAGESIZE,

843e19887f64dde75055cf8842fc4db2171eff45johnlev &xendev_dc_accattr, DDI_DMA_CONSISTENT, DDI_DMA_SLEEP, 0,

843e19887f64dde75055cf8842fc4db2171eff45johnlev &ring->xr_vaddr, &len, &ring->xr_acc_hdl) != DDI_SUCCESS) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev ddi_dma_free_handle(&ring->xr_dma_hdl);

843e19887f64dde75055cf8842fc4db2171eff45johnlev goto err;

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (ddi_dma_addr_bind_handle(ring->xr_dma_hdl, NULL,

843e19887f64dde75055cf8842fc4db2171eff45johnlev ring->xr_vaddr, len, DDI_DMA_RDWR | DDI_DMA_CONSISTENT,

843e19887f64dde75055cf8842fc4db2171eff45johnlev DDI_DMA_SLEEP, 0, &dma_cookie, &ncookies) != DDI_DMA_MAPPED) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev ddi_dma_mem_free(&ring->xr_acc_hdl);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ring->xr_vaddr = NULL;

843e19887f64dde75055cf8842fc4db2171eff45johnlev ddi_dma_free_handle(&ring->xr_dma_hdl);

843e19887f64dde75055cf8842fc4db2171eff45johnlev goto err;

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(ncookies == 1);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ring->xr_paddr = dma_cookie.dmac_laddress;

843e19887f64dde75055cf8842fc4db2171eff45johnlev rmaddr = DOMAIN_IS_INITDOMAIN(xen_info) ? ring->xr_paddr :

843e19887f64dde75055cf8842fc4db2171eff45johnlev pa_to_ma(ring->xr_paddr);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev if ((ring_gref = gnttab_grant_foreign_access(oeid,

843e19887f64dde75055cf8842fc4db2171eff45johnlev rmaddr >> PAGESHIFT, 0)) == (grant_ref_t)-1) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) ddi_dma_unbind_handle(ring->xr_dma_hdl);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ddi_dma_mem_free(&ring->xr_acc_hdl);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ring->xr_vaddr = NULL;

843e19887f64dde75055cf8842fc4db2171eff45johnlev ddi_dma_free_handle(&ring->xr_dma_hdl);

843e19887f64dde75055cf8842fc4db2171eff45johnlev goto err;

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev *gref = ring->xr_gref = ring_gref;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /* init frontend ring */

843e19887f64dde75055cf8842fc4db2171eff45johnlev xvdi_ring_init_sring(ring);

843e19887f64dde75055cf8842fc4db2171eff45johnlev xvdi_ring_init_front_ring(ring, nentry, entrysize);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (DDI_SUCCESS);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnleverr:

843e19887f64dde75055cf8842fc4db2171eff45johnlev kmem_free(ring, sizeof (xendev_ring_t));

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (DDI_FAILURE);

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevxvdi_free_ring(xendev_ring_t *ring)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT((ring != NULL) && (ring->xr_vaddr != NULL));

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) gnttab_end_foreign_access_ref(ring->xr_gref, 0);

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) ddi_dma_unbind_handle(ring->xr_dma_hdl);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ddi_dma_mem_free(&ring->xr_acc_hdl);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ddi_dma_free_handle(&ring->xr_dma_hdl);

843e19887f64dde75055cf8842fc4db2171eff45johnlev kmem_free(ring, sizeof (xendev_ring_t));

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevdev_info_t *

843e19887f64dde75055cf8842fc4db2171eff45johnlevxvdi_create_dev(dev_info_t *parent, xendev_devclass_t devclass,

843e19887f64dde75055cf8842fc4db2171eff45johnlev domid_t dom, int vdev)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev dev_info_t *dip;

843e19887f64dde75055cf8842fc4db2171eff45johnlev boolean_t backend;

843e19887f64dde75055cf8842fc4db2171eff45johnlev i_xd_cfg_t *xdcp;

843e19887f64dde75055cf8842fc4db2171eff45johnlev char xsnamebuf[TYPICALMAXPATHLEN];

843e19887f64dde75055cf8842fc4db2171eff45johnlev char *type, *node = NULL, *xsname = NULL;

843e19887f64dde75055cf8842fc4db2171eff45johnlev unsigned int tlen;

1d03c31e0733adea0edef54f0d5d2ea9639ecd2ajohnlev int ret;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(DEVI_BUSY_OWNED(parent));

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev backend = (dom != DOMID_SELF);

843e19887f64dde75055cf8842fc4db2171eff45johnlev xdcp = i_xvdi_devclass2cfg(devclass);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(xdcp != NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (vdev != -1) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (!backend) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) snprintf(xsnamebuf, sizeof (xsnamebuf),

843e19887f64dde75055cf8842fc4db2171eff45johnlev "%s/%d", xdcp->xs_path_fe, vdev);

843e19887f64dde75055cf8842fc4db2171eff45johnlev xsname = xsnamebuf;

843e19887f64dde75055cf8842fc4db2171eff45johnlev node = xdcp->node_fe;

843e19887f64dde75055cf8842fc4db2171eff45johnlev } else {

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) snprintf(xsnamebuf, sizeof (xsnamebuf),

843e19887f64dde75055cf8842fc4db2171eff45johnlev "%s/%d/%d", xdcp->xs_path_be, dom, vdev);

843e19887f64dde75055cf8842fc4db2171eff45johnlev xsname = xsnamebuf;

843e19887f64dde75055cf8842fc4db2171eff45johnlev node = xdcp->node_be;

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev } else {

843e19887f64dde75055cf8842fc4db2171eff45johnlev node = xdcp->node_fe;

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /* Must have a driver to use. */

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (node == NULL)

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /*

843e19887f64dde75055cf8842fc4db2171eff45johnlev if ((xsname != NULL) &&

843e19887f64dde75055cf8842fc4db2171eff45johnlev (xenbus_read_driver_state(xsname) >= XenbusStateClosing))

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev ndi_devi_alloc_sleep(parent, node, DEVI_SID_NODEID, &dip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /*

843e19887f64dde75055cf8842fc4db2171eff45johnlev if ((xsname != NULL) &&

843e19887f64dde75055cf8842fc4db2171eff45johnlev (xenbus_read(XBT_NULL, xsname, "type", (void *)&type, &tlen)

843e19887f64dde75055cf8842fc4db2171eff45johnlev == 0)) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev size_t clen;

843e19887f64dde75055cf8842fc4db2171eff45johnlev char *c[1];

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev clen = strlen(node) + strlen(type) + 2;

843e19887f64dde75055cf8842fc4db2171eff45johnlev c[0] = kmem_alloc(clen, KM_SLEEP);

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) snprintf(c[0], clen, "%s,%s", node, type);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) ndi_prop_update_string_array(DDI_DEV_T_NONE,

843e19887f64dde75055cf8842fc4db2171eff45johnlev dip, "compatible", (char **)c, 1);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev kmem_free(c[0], clen);

843e19887f64dde75055cf8842fc4db2171eff45johnlev kmem_free(type, tlen);

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) ndi_prop_update_int(DDI_DEV_T_NONE, dip, "devclass", devclass);

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) ndi_prop_update_int(DDI_DEV_T_NONE, dip, "domain", dom);

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) ndi_prop_update_int(DDI_DEV_T_NONE, dip, "vdev", vdev);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (i_ddi_devi_attached(parent))

1d03c31e0733adea0edef54f0d5d2ea9639ecd2ajohnlev ret = ndi_devi_online(dip, 0);

843e19887f64dde75055cf8842fc4db2171eff45johnlev else

1d03c31e0733adea0edef54f0d5d2ea9639ecd2ajohnlev ret = ndi_devi_bind_driver(dip, 0);

1d03c31e0733adea0edef54f0d5d2ea9639ecd2ajohnlev if (ret != NDI_SUCCESS)

1d03c31e0733adea0edef54f0d5d2ea9639ecd2ajohnlev (void) ndi_devi_offline(dip, NDI_DEVI_REMOVE);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (dip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevxendev_enum_class(dev_info_t *parent, xendev_devclass_t devclass)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev i_xd_cfg_t *xdcp;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev xdcp = i_xvdi_devclass2cfg(devclass);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(xdcp != NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (xdcp->xsdev == NULL) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev int circ;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /*

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev ndi_devi_enter(parent, &circ);

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (xvdi_find_dev(parent, devclass, DOMID_SELF, -1)

843e19887f64dde75055cf8842fc4db2171eff45johnlev == NULL)

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) xvdi_create_dev(parent, devclass,

843e19887f64dde75055cf8842fc4db2171eff45johnlev DOMID_SELF, -1);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ndi_devi_exit(parent, circ);

843e19887f64dde75055cf8842fc4db2171eff45johnlev } else {

843e19887f64dde75055cf8842fc4db2171eff45johnlev /*

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev i_xvdi_enum_fe(parent, xdcp);

843e19887f64dde75055cf8842fc4db2171eff45johnlev i_xvdi_enum_be(parent, xdcp);

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevxendev_enum_all(dev_info_t *parent, boolean_t store_unavailable)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev int i;

843e19887f64dde75055cf8842fc4db2171eff45johnlev i_xd_cfg_t *xdcp;

843e19887f64dde75055cf8842fc4db2171eff45johnlev boolean_t dom0 = DOMAIN_IS_INITDOMAIN(xen_info);

843e19887f64dde75055cf8842fc4db2171eff45johnlev boolean_t domU = !dom0;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev for (i = 0, xdcp = xdci; i < NXDC; i++, xdcp++) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (dom0 && !(xdcp->flags & XD_DOM_ZERO))

843e19887f64dde75055cf8842fc4db2171eff45johnlev continue;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (domU && !(xdcp->flags & XD_DOM_GUEST))

843e19887f64dde75055cf8842fc4db2171eff45johnlev continue;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /*

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (dom0 && (xdcp->xsdev != NULL))

843e19887f64dde75055cf8842fc4db2171eff45johnlev continue;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /*

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (store_unavailable && (xdcp->xsdev != NULL))

843e19887f64dde75055cf8842fc4db2171eff45johnlev continue;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev xendev_enum_class(parent, xdcp->devclass);

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevxendev_nodename_to_devclass(char *nodename)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev int i;

843e19887f64dde75055cf8842fc4db2171eff45johnlev i_xd_cfg_t *xdcp;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /*

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(nodename != NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev for (i = 0, xdcp = xdci; i < NXDC; i++, xdcp++) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (((xdcp->node_fe != NULL) &&

843e19887f64dde75055cf8842fc4db2171eff45johnlev (strncmp(nodename, xdcp->node_fe,

843e19887f64dde75055cf8842fc4db2171eff45johnlev strlen(xdcp->node_fe)) == 0)) ||

843e19887f64dde75055cf8842fc4db2171eff45johnlev ((xdcp->node_be != NULL) &&

843e19887f64dde75055cf8842fc4db2171eff45johnlev (strncmp(nodename, xdcp->node_be,

843e19887f64dde75055cf8842fc4db2171eff45johnlev strlen(xdcp->node_be)) == 0)))

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (xdcp->devclass);

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (XEN_INVAL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevxendev_devclass_ipl(xendev_devclass_t devclass)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev i_xd_cfg_t *xdcp;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev xdcp = i_xvdi_devclass2cfg(devclass);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(xdcp != NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (xdcp->xd_ipl);

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevdev_info_t *

843e19887f64dde75055cf8842fc4db2171eff45johnlevxvdi_find_dev(dev_info_t *parent, xendev_devclass_t devclass,

843e19887f64dde75055cf8842fc4db2171eff45johnlev domid_t dom, int vdev)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev dev_info_t *dip;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(DEVI_BUSY_OWNED(parent));

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev switch (devclass) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev case XEN_CONSOLE:

843e19887f64dde75055cf8842fc4db2171eff45johnlev case XEN_XENBUS:

843e19887f64dde75055cf8842fc4db2171eff45johnlev case XEN_DOMCAPS:

843e19887f64dde75055cf8842fc4db2171eff45johnlev case XEN_BALLOON:

843e19887f64dde75055cf8842fc4db2171eff45johnlev case XEN_EVTCHN:

843e19887f64dde75055cf8842fc4db2171eff45johnlev case XEN_PRIVCMD:

843e19887f64dde75055cf8842fc4db2171eff45johnlev /* Console and soft devices have no vdev. */

843e19887f64dde75055cf8842fc4db2171eff45johnlev vdev = -1;

843e19887f64dde75055cf8842fc4db2171eff45johnlev break;

843e19887f64dde75055cf8842fc4db2171eff45johnlev default:

843e19887f64dde75055cf8842fc4db2171eff45johnlev break;

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev for (dip = ddi_get_child(parent); dip != NULL;

843e19887f64dde75055cf8842fc4db2171eff45johnlev dip = ddi_get_next_sibling(dip)) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev int *vdevnump, *domidp, *devclsp, vdevnum;

843e19887f64dde75055cf8842fc4db2171eff45johnlev uint_t ndomid, nvdevnum, ndevcls;

843e19887f64dde75055cf8842fc4db2171eff45johnlev xendev_devclass_t devcls;

843e19887f64dde75055cf8842fc4db2171eff45johnlev domid_t domid;

843e19887f64dde75055cf8842fc4db2171eff45johnlev struct xendev_ppd *pdp = ddi_get_parent_data(dip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (pdp == NULL) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, dip,

843e19887f64dde75055cf8842fc4db2171eff45johnlev DDI_PROP_DONTPASS, "domain", &domidp, &ndomid) !=

843e19887f64dde75055cf8842fc4db2171eff45johnlev DDI_PROP_SUCCESS)

843e19887f64dde75055cf8842fc4db2171eff45johnlev continue;

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(ndomid == 1);

843e19887f64dde75055cf8842fc4db2171eff45johnlev domid = (domid_t)*domidp;

843e19887f64dde75055cf8842fc4db2171eff45johnlev ddi_prop_free(domidp);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, dip,

843e19887f64dde75055cf8842fc4db2171eff45johnlev DDI_PROP_DONTPASS, "vdev", &vdevnump, &nvdevnum) !=

843e19887f64dde75055cf8842fc4db2171eff45johnlev DDI_PROP_SUCCESS)

843e19887f64dde75055cf8842fc4db2171eff45johnlev continue;

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(nvdevnum == 1);

843e19887f64dde75055cf8842fc4db2171eff45johnlev vdevnum = *vdevnump;

843e19887f64dde75055cf8842fc4db2171eff45johnlev ddi_prop_free(vdevnump);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, dip,

843e19887f64dde75055cf8842fc4db2171eff45johnlev DDI_PROP_DONTPASS, "devclass", &devclsp,

843e19887f64dde75055cf8842fc4db2171eff45johnlev &ndevcls) != DDI_PROP_SUCCESS)

843e19887f64dde75055cf8842fc4db2171eff45johnlev continue;

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(ndevcls == 1);

843e19887f64dde75055cf8842fc4db2171eff45johnlev devcls = (xendev_devclass_t)*devclsp;

843e19887f64dde75055cf8842fc4db2171eff45johnlev ddi_prop_free(devclsp);

843e19887f64dde75055cf8842fc4db2171eff45johnlev } else {

843e19887f64dde75055cf8842fc4db2171eff45johnlev domid = pdp->xd_domain;

843e19887f64dde75055cf8842fc4db2171eff45johnlev vdevnum = pdp->xd_vdevnum;

843e19887f64dde75055cf8842fc4db2171eff45johnlev devcls = pdp->xd_devclass;

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev if ((domid == dom) && (vdevnum == vdev) && (devcls == devclass))

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (dip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevxvdi_get_evtchn(dev_info_t *xdip)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev struct xendev_ppd *pdp = ddi_get_parent_data(xdip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(pdp != NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (pdp->xd_evtchn);

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevxvdi_get_vdevnum(dev_info_t *xdip)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev struct xendev_ppd *pdp = ddi_get_parent_data(xdip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(pdp != NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (pdp->xd_vdevnum);

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevchar *

843e19887f64dde75055cf8842fc4db2171eff45johnlevxvdi_get_xsname(dev_info_t *xdip)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev struct xendev_ppd *pdp = ddi_get_parent_data(xdip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(pdp != NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev return ((char *)(pdp->xd_xsdev.nodename));

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevchar *

843e19887f64dde75055cf8842fc4db2171eff45johnlevxvdi_get_oename(dev_info_t *xdip)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev struct xendev_ppd *pdp = ddi_get_parent_data(xdip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(pdp != NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (pdp->xd_devclass == XEN_CONSOLE)

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev return ((char *)(pdp->xd_xsdev.otherend));

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevstruct xenbus_device *

843e19887f64dde75055cf8842fc4db2171eff45johnlevxvdi_get_xsd(dev_info_t *xdip)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev struct xendev_ppd *pdp = ddi_get_parent_data(xdip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(pdp != NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (&pdp->xd_xsdev);

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevxvdi_get_oeid(dev_info_t *xdip)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev struct xendev_ppd *pdp = ddi_get_parent_data(xdip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(pdp != NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (pdp->xd_devclass == XEN_CONSOLE)

843e19887f64dde75055cf8842fc4db2171eff45johnlev return ((domid_t)-1);

843e19887f64dde75055cf8842fc4db2171eff45johnlev return ((domid_t)(pdp->xd_xsdev.otherend_id));

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevxvdi_dev_error(dev_info_t *dip, int errno, char *errstr)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev struct xendev_ppd *pdp = ddi_get_parent_data(dip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(pdp != NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev xenbus_dev_error(&pdp->xd_xsdev, errno, errstr);

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevxvdi_fatal_error(dev_info_t *dip, int errno, char *errstr)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev struct xendev_ppd *pdp = ddi_get_parent_data(dip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(pdp != NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev xenbus_dev_fatal(&pdp->xd_xsdev, errno, errstr);

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic void

843e19887f64dde75055cf8842fc4db2171eff45johnlevi_xvdi_oestate_handler(void *arg)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev dev_info_t *dip = arg;

843e19887f64dde75055cf8842fc4db2171eff45johnlev struct xendev_ppd *pdp = ddi_get_parent_data(dip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev XenbusState oestate = pdp->xd_xsdev.otherend_state;

843e19887f64dde75055cf8842fc4db2171eff45johnlev ddi_eventcookie_t evc;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_enter(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (pdp->xd_oe_ehid != NULL) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev /* send notification to driver */

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (ddi_get_eventcookie(dip, XS_OE_STATE,

843e19887f64dde75055cf8842fc4db2171eff45johnlev &evc) == DDI_SUCCESS) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_exit(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) ndi_post_event(dip, dip, evc, &oestate);

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_enter(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev } else {

843e19887f64dde75055cf8842fc4db2171eff45johnlev /*

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (oestate == XenbusStateClosing) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) xvdi_switch_state(dip, XBT_NULL,

843e19887f64dde75055cf8842fc4db2171eff45johnlev XenbusStateClosed);

843e19887f64dde75055cf8842fc4db2171eff45johnlev } else if (oestate == XenbusStateClosed) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) xvdi_switch_state(dip, XBT_NULL,

843e19887f64dde75055cf8842fc4db2171eff45johnlev XenbusStateClosed);

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) xvdi_post_event(dip, XEN_HP_REMOVE);

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_exit(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /*

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (oestate == XenbusStateClosed)

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) ddi_taskq_dispatch(DEVI(ddi_get_parent(dip))->devi_taskq,

843e19887f64dde75055cf8842fc4db2171eff45johnlev xendev_offline_device, dip, DDI_SLEEP);

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic void

843e19887f64dde75055cf8842fc4db2171eff45johnlevi_xvdi_hpstate_handler(void *arg)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev dev_info_t *dip = (dev_info_t *)arg;

843e19887f64dde75055cf8842fc4db2171eff45johnlev struct xendev_ppd *pdp = ddi_get_parent_data(dip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ddi_eventcookie_t evc;

843e19887f64dde75055cf8842fc4db2171eff45johnlev char *hp_status;

843e19887f64dde75055cf8842fc4db2171eff45johnlev unsigned int hpl;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_enter(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev if ((ddi_get_eventcookie(dip, XS_HP_STATE, &evc) == DDI_SUCCESS) &&

843e19887f64dde75055cf8842fc4db2171eff45johnlev (xenbus_read(XBT_NULL, pdp->xd_hp_watch.node, "",

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void *)&hp_status, &hpl) == 0)) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev xendev_hotplug_state_t new_state = Unrecognized;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (strcmp(hp_status, "connected") == 0)

843e19887f64dde75055cf8842fc4db2171eff45johnlev new_state = Connected;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_exit(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) ndi_post_event(dip, dip, evc, &new_state);

843e19887f64dde75055cf8842fc4db2171eff45johnlev kmem_free(hp_status, hpl);

843e19887f64dde75055cf8842fc4db2171eff45johnlev return;

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_exit(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevxvdi_notify_oe(dev_info_t *dip)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev struct xendev_ppd *pdp;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp = ddi_get_parent_data(dip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(pdp->xd_evtchn != INVALID_EVTCHN);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ec_notify_via_evtchn(pdp->xd_evtchn);

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic void

843e19887f64dde75055cf8842fc4db2171eff45johnlevi_xvdi_bepath_cb(struct xenbus_watch *w, const char **vec, unsigned int len)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev dev_info_t *dip = (dev_info_t *)w->dev;

843e19887f64dde75055cf8842fc4db2171eff45johnlev struct xendev_ppd *pdp = ddi_get_parent_data(dip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev char *be = NULL;

843e19887f64dde75055cf8842fc4db2171eff45johnlev unsigned int bel;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(len > XS_WATCH_PATH);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(vec[XS_WATCH_PATH] != NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /*

843e19887f64dde75055cf8842fc4db2171eff45johnlev if ((xenbus_read(XBT_NULL, "", vec[XS_WATCH_PATH], (void *)be, &bel)

843e19887f64dde75055cf8842fc4db2171eff45johnlev == 0) && (strcmp(be, pdp->xd_xsdev.otherend) != 0))

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) i_xvdi_add_watch_oestate(dip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (be != NULL) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(bel > 0);

843e19887f64dde75055cf8842fc4db2171eff45johnlev kmem_free(be, bel);

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic int

843e19887f64dde75055cf8842fc4db2171eff45johnlevi_xvdi_add_watch_oestate(dev_info_t *dip)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev struct xendev_ppd *pdp = ddi_get_parent_data(dip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(pdp != NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(pdp->xd_xsdev.nodename != NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(mutex_owned(&pdp->xd_lk));

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /*

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (pdp->xd_oe_taskq == NULL)

843e19887f64dde75055cf8842fc4db2171eff45johnlev if ((pdp->xd_oe_taskq = ddi_taskq_create(dip,

843e19887f64dde75055cf8842fc4db2171eff45johnlev "xendev_oe_taskq", 1, TASKQ_DEFAULTPRI, 0)) == NULL)

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (DDI_FAILURE);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /*

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp->xd_xsdev.otherend_state = XenbusStateUnknown;

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp->xd_xsdev.otherend_changed = i_xvdi_oestate_cb;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (talk_to_otherend(&pdp->xd_xsdev) != 0) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev i_xvdi_rem_watch_oestate(dip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (DDI_FAILURE);

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (DDI_SUCCESS);

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic void

843e19887f64dde75055cf8842fc4db2171eff45johnlevi_xvdi_rem_watch_oestate(dev_info_t *dip)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev struct xendev_ppd *pdp;

843e19887f64dde75055cf8842fc4db2171eff45johnlev struct xenbus_device *dev;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp = ddi_get_parent_data(dip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(pdp != NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(mutex_owned(&pdp->xd_lk));

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev dev = &pdp->xd_xsdev;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /* Unwatch for changes to XenbusState of otherend */

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (dev->otherend_watch.node != NULL) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_exit(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev unregister_xenbus_watch(&dev->otherend_watch);

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_enter(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /* make sure no event handler is running */

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (pdp->xd_oe_taskq != NULL) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_exit(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ddi_taskq_destroy(pdp->xd_oe_taskq);

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_enter(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp->xd_oe_taskq = NULL;

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /* clean up */

843e19887f64dde75055cf8842fc4db2171eff45johnlev dev->otherend_state = XenbusStateUnknown;

843e19887f64dde75055cf8842fc4db2171eff45johnlev dev->otherend_id = (domid_t)-1;

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (dev->otherend_watch.node != NULL)

843e19887f64dde75055cf8842fc4db2171eff45johnlev kmem_free((void *)dev->otherend_watch.node,

843e19887f64dde75055cf8842fc4db2171eff45johnlev strlen(dev->otherend_watch.node) + 1);

843e19887f64dde75055cf8842fc4db2171eff45johnlev dev->otherend_watch.node = NULL;

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (dev->otherend != NULL)

843e19887f64dde75055cf8842fc4db2171eff45johnlev kmem_free((void *)dev->otherend, strlen(dev->otherend) + 1);

843e19887f64dde75055cf8842fc4db2171eff45johnlev dev->otherend = NULL;

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic int

843e19887f64dde75055cf8842fc4db2171eff45johnlevi_xvdi_add_watch_hpstate(dev_info_t *dip)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev struct xendev_ppd *pdp = ddi_get_parent_data(dip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(pdp != NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(pdp->xd_xsdev.frontend == 0);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(mutex_owned(&pdp->xd_lk));

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /*

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (pdp->xd_hp_taskq == NULL)

843e19887f64dde75055cf8842fc4db2171eff45johnlev if ((pdp->xd_hp_taskq = ddi_taskq_create(dip,

843e19887f64dde75055cf8842fc4db2171eff45johnlev "xendev_hp_taskq", 1, TASKQ_DEFAULTPRI, 0)) == NULL)

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (DDI_FAILURE);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (pdp->xd_hp_watch.node == NULL) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev size_t len;

843e19887f64dde75055cf8842fc4db2171eff45johnlev char *path;

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(pdp->xd_xsdev.nodename != NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev len = strlen(pdp->xd_xsdev.nodename) +

843e19887f64dde75055cf8842fc4db2171eff45johnlev strlen("/hotplug-status") + 1;

843e19887f64dde75055cf8842fc4db2171eff45johnlev path = kmem_alloc(len, KM_SLEEP);

843e19887f64dde75055cf8842fc4db2171eff45johnlev (void) snprintf(path, len, "%s/hotplug-status",

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp->xd_xsdev.nodename);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp->xd_hp_watch.node = path;

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp->xd_hp_watch.callback = i_xvdi_hpstate_cb;

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp->xd_hp_watch.dev = (struct xenbus_device *)dip; /* yuck! */

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (register_xenbus_watch(&pdp->xd_hp_watch) != 0) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev i_xvdi_rem_watch_hpstate(dip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (DDI_FAILURE);

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev return (DDI_SUCCESS);

843e19887f64dde75055cf8842fc4db2171eff45johnlev}

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlevstatic void

843e19887f64dde75055cf8842fc4db2171eff45johnlevi_xvdi_rem_watch_hpstate(dev_info_t *dip)

843e19887f64dde75055cf8842fc4db2171eff45johnlev{

843e19887f64dde75055cf8842fc4db2171eff45johnlev struct xendev_ppd *pdp;

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp = ddi_get_parent_data(dip);

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(pdp != NULL);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(pdp->xd_xsdev.frontend == 0);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ASSERT(mutex_owned(&pdp->xd_lk));

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /* Unwatch for changes to "hotplug-status" node for backend device. */

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (pdp->xd_hp_watch.node != NULL) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_exit(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev unregister_xenbus_watch(&pdp->xd_hp_watch);

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_enter(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev }

843e19887f64dde75055cf8842fc4db2171eff45johnlev

843e19887f64dde75055cf8842fc4db2171eff45johnlev /* Make sure no event handler is running. */

843e19887f64dde75055cf8842fc4db2171eff45johnlev if (pdp->xd_hp_taskq != NULL) {

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_exit(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev ddi_taskq_destroy(pdp->xd_hp_taskq);

843e19887f64dde75055cf8842fc4db2171eff45johnlev mutex_enter(&pdp->xd_lk);

843e19887f64dde75055cf8842fc4db2171eff45johnlev pdp->xd_hp_taskq = NULL;