Differential D26035 Diff 83362 usr.sbin/bhyve/pci_virtio_scsi.c

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usr.sbin/bhyve/pci_virtio_scsi.c

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#include <cam/ctl/ctl_io.h>		#include <cam/ctl/ctl_io.h>
#include <cam/ctl/ctl_backend.h>		#include <cam/ctl/ctl_backend.h>
#include <cam/ctl/ctl_ioctl.h>		#include <cam/ctl/ctl_ioctl.h>
#include <cam/ctl/ctl_util.h>		#include <cam/ctl/ctl_util.h>
#include <cam/ctl/ctl_scsi_all.h>		#include <cam/ctl/ctl_scsi_all.h>
#include <camlib.h>		#include <camlib.h>

#include "bhyverun.h"		#include "bhyverun.h"
		#include "config.h"
#include "debug.h"		#include "debug.h"
#include "pci_emul.h"		#include "pci_emul.h"
#include "virtio.h"		#include "virtio.h"
#include "iov.h"		#include "iov.h"

#define VTSCSI_RINGSZ 64		#define VTSCSI_RINGSZ 64
#define VTSCSI_REQUESTQ 1		#define VTSCSI_REQUESTQ 1
#define VTSCSI_THR_PER_Q 16		#define VTSCSI_THR_PER_Q 16
▲ Show 20 Lines • Show All 167 Lines • ▼ Show 20 Lines	static int pci_vtscsi_an_handle(struct pci_vtscsi_softc *,
struct pci_vtscsi_ctrl_an *);		struct pci_vtscsi_ctrl_an *);
static int pci_vtscsi_request_handle(struct pci_vtscsi_queue , struct iovec ,		static int pci_vtscsi_request_handle(struct pci_vtscsi_queue , struct iovec ,
int, struct iovec *, int);		int, struct iovec *, int);
static void pci_vtscsi_controlq_notify(void , struct vqueue_info );		static void pci_vtscsi_controlq_notify(void , struct vqueue_info );
static void pci_vtscsi_eventq_notify(void , struct vqueue_info );		static void pci_vtscsi_eventq_notify(void , struct vqueue_info );
static void pci_vtscsi_requestq_notify(void , struct vqueue_info );		static void pci_vtscsi_requestq_notify(void , struct vqueue_info );
static int pci_vtscsi_init_queue(struct pci_vtscsi_softc *,		static int pci_vtscsi_init_queue(struct pci_vtscsi_softc *,
struct pci_vtscsi_queue *, int);		struct pci_vtscsi_queue *, int);
static int pci_vtscsi_init(struct vmctx , struct pci_devinst , char *);		static int pci_vtscsi_init(struct vmctx , struct pci_devinst , nvlist_t *);

static struct virtio_consts vtscsi_vi_consts = {		static struct virtio_consts vtscsi_vi_consts = {
"vtscsi", /* our name */		"vtscsi", /* our name */
VTSCSI_MAXQ, /* we support 2+n virtqueues */		VTSCSI_MAXQ, /* we support 2+n virtqueues */
sizeof(struct pci_vtscsi_config), /* config reg size */		sizeof(struct pci_vtscsi_config), /* config reg size */
pci_vtscsi_reset, /* reset */		pci_vtscsi_reset, /* reset */
NULL, /* device-wide qnotify */		NULL, /* device-wide qnotify */
pci_vtscsi_cfgread, /* read virtio config */		pci_vtscsi_cfgread, /* read virtio config */
▲ Show 20 Lines • Show All 404 Lines • ▼ Show 20 Lines	for (i = 0; i < VTSCSI_THR_PER_Q; i++) {
pthread_set_name_np(worker->vsw_thread, tname);		pthread_set_name_np(worker->vsw_thread, tname);
LIST_INSERT_HEAD(&queue->vsq_workers, worker, vsw_link);		LIST_INSERT_HEAD(&queue->vsq_workers, worker, vsw_link);
}		}

return (0);		return (0);
}		}

static int		static int
pci_vtscsi_init(struct vmctx ctx, struct pci_devinst pi, char *opts)		pci_vtscsi_legacy_config(nvlist_t nvl, const char opts)
{		{
struct pci_vtscsi_softc *sc;		char cp, devname;
char opt, optname;
const char *devname;
int i, optidx = 0;

sc = calloc(1, sizeof(struct pci_vtscsi_softc));		cp = strchr(opts, ',');
devname = "/dev/cam/ctl";		if (cp == NULL) {
while ((opt = strsep(&opts, ",")) != NULL) {		set_config_value_node(nvl, "dev", opts);
optname = strsep(&opt, "=");		return (0);
if (opt == NULL && optidx == 0) {
if (optname[0] != 0)
devname = optname;
} else if (strcmp(optname, "dev") == 0 && opt != NULL) {
devname = opt;
} else if (strcmp(optname, "iid") == 0 && opt != NULL) {
sc->vss_iid = strtoul(opt, NULL, 10);
} else {
EPRINTLN("Invalid option %s", optname);
free(sc);
return (1);
}		}
optidx++;		devname = strndup(opts, cp - opts);
		set_config_value_node(nvl, "dev", devname);
		free(devname);
		return (pci_parse_legacy_config(nvl, cp + 1));
}		}

		static int
		pci_vtscsi_init(struct vmctx ctx, struct pci_devinst pi, nvlist_t *nvl)
		{
		struct pci_vtscsi_softc *sc;
		const char devname, value;;
		int i;

		sc = calloc(1, sizeof(struct pci_vtscsi_softc));
		value = get_config_value_node(nvl, "iid");
		if (value != NULL)
		sc->vss_iid = strtoul(value, NULL, 10);

		devname = get_config_value_node(nvl, "dev");
		if (devname == NULL)
		devname = "/dev/cam/ctl";
sc->vss_ctl_fd = open(devname, O_RDWR);		sc->vss_ctl_fd = open(devname, O_RDWR);
if (sc->vss_ctl_fd < 0) {		if (sc->vss_ctl_fd < 0) {
WPRINTF(("cannot open %s: %s", devname, strerror(errno)));		WPRINTF(("cannot open %s: %s", devname, strerror(errno)));
free(sc);		free(sc);
return (1);		return (1);
}		}

vi_softc_linkup(&sc->vss_vs, &vtscsi_vi_consts, sc, pi, sc->vss_vq);		vi_softc_linkup(&sc->vss_vs, &vtscsi_vi_consts, sc, pi, sc->vss_vq);
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