From: Anthony PERARD <anthony.perard@xxxxxxxxxx>
Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
Acked-by: Alexander Graf <agraf@xxxxxxx>
---
hw/xen_backend.c | 308 +++++++++++++++++++++---------------------
hw/xen_disk.c | 394 +++++++++++++++++++++++++++---------------------------
hw/xen_nic.c | 222 +++++++++++++++---------------
3 files changed, 462 insertions(+), 462 deletions(-)
diff --git a/hw/xen_backend.c b/hw/xen_backend.c
index a2e408f..860b038 100644
--- a/hw/xen_backend.c
+++ b/hw/xen_backend.c
@@ -59,7 +59,7 @@ int xenstore_write_str(const char *base, const char *node,
const char *val)
snprintf(abspath, sizeof(abspath), "%s/%s", base, node);
if (!xs_write(xenstore, 0, abspath, val, strlen(val)))
- return -1;
+ return -1;
return 0;
}
@@ -95,7 +95,7 @@ int xenstore_read_int(const char *base, const char *node, int
*ival)
val = xenstore_read_str(base, node);
if (val && 1 == sscanf(val, "%d", ival))
- rc = 0;
+ rc = 0;
qemu_free(val);
return rc;
}
@@ -134,16 +134,16 @@ int xenstore_read_fe_int(struct XenDevice *xendev, const
char *node, int *ival)
const char *xenbus_strstate(enum xenbus_state state)
{
- static const char *const name[] = {
- [ XenbusStateUnknown ] = "Unknown",
- [ XenbusStateInitialising ] = "Initialising",
- [ XenbusStateInitWait ] = "InitWait",
- [ XenbusStateInitialised ] = "Initialised",
- [ XenbusStateConnected ] = "Connected",
- [ XenbusStateClosing ] = "Closing",
- [ XenbusStateClosed ] = "Closed",
- };
- return (state < ARRAY_SIZE(name)) ? name[state] : "INVALID";
+ static const char *const name[] = {
+ [ XenbusStateUnknown ] = "Unknown",
+ [ XenbusStateInitialising ] = "Initialising",
+ [ XenbusStateInitWait ] = "InitWait",
+ [ XenbusStateInitialised ] = "Initialised",
+ [ XenbusStateConnected ] = "Connected",
+ [ XenbusStateClosing ] = "Closing",
+ [ XenbusStateClosed ] = "Closed",
+ };
+ return (state < ARRAY_SIZE(name)) ? name[state] : "INVALID";
}
int xen_be_set_state(struct XenDevice *xendev, enum xenbus_state state)
@@ -152,9 +152,9 @@ int xen_be_set_state(struct XenDevice *xendev, enum
xenbus_state state)
rc = xenstore_write_be_int(xendev, "state", state);
if (rc < 0)
- return rc;
+ return rc;
xen_be_printf(xendev, 1, "backend state: %s -> %s\n",
- xenbus_strstate(xendev->be_state), xenbus_strstate(state));
+ xenbus_strstate(xendev->be_state), xenbus_strstate(state));
xendev->be_state = state;
return 0;
}
@@ -166,13 +166,13 @@ struct XenDevice *xen_be_find_xendev(const char *type,
int dom, int dev)
struct XenDevice *xendev;
QTAILQ_FOREACH(xendev, &xendevs, next) {
- if (xendev->dom != dom)
- continue;
- if (xendev->dev != dev)
- continue;
- if (strcmp(xendev->type, type) != 0)
- continue;
- return xendev;
+ if (xendev->dom != dom)
+ continue;
+ if (xendev->dev != dev)
+ continue;
+ if (strcmp(xendev->type, type) != 0)
+ continue;
+ return xendev;
}
return NULL;
}
@@ -188,7 +188,7 @@ static struct XenDevice *xen_be_get_xendev(const char
*type, int dom, int dev,
xendev = xen_be_find_xendev(type, dom, dev);
if (xendev)
- return xendev;
+ return xendev;
/* init new xendev */
xendev = qemu_mallocz(ops->size);
@@ -199,9 +199,9 @@ static struct XenDevice *xen_be_get_xendev(const char
*type, int dom, int dev,
dom0 = xs_get_domain_path(xenstore, 0);
snprintf(xendev->be, sizeof(xendev->be), "%s/backend/%s/%d/%d",
- dom0, xendev->type, xendev->dom, xendev->dev);
+ dom0, xendev->type, xendev->dom, xendev->dev);
snprintf(xendev->name, sizeof(xendev->name), "%s-%d",
- xendev->type, xendev->dev);
+ xendev->type, xendev->dev);
free(dom0);
xendev->debug = debug;
@@ -209,28 +209,28 @@ static struct XenDevice *xen_be_get_xendev(const char
*type, int dom, int dev,
xendev->evtchndev = xc_evtchn_open();
if (xendev->evtchndev < 0) {
- xen_be_printf(NULL, 0, "can't open evtchn device\n");
- qemu_free(xendev);
- return NULL;
+ xen_be_printf(NULL, 0, "can't open evtchn device\n");
+ qemu_free(xendev);
+ return NULL;
}
fcntl(xc_evtchn_fd(xendev->evtchndev), F_SETFD, FD_CLOEXEC);
if (ops->flags & DEVOPS_FLAG_NEED_GNTDEV) {
- xendev->gnttabdev = xc_gnttab_open();
- if (xendev->gnttabdev < 0) {
- xen_be_printf(NULL, 0, "can't open gnttab device\n");
- xc_evtchn_close(xendev->evtchndev);
- qemu_free(xendev);
- return NULL;
- }
+ xendev->gnttabdev = xc_gnttab_open();
+ if (xendev->gnttabdev < 0) {
+ xen_be_printf(NULL, 0, "can't open gnttab device\n");
+ xc_evtchn_close(xendev->evtchndev);
+ qemu_free(xendev);
+ return NULL;
+ }
} else {
- xendev->gnttabdev = -1;
+ xendev->gnttabdev = -1;
}
QTAILQ_INSERT_TAIL(&xendevs, xendev, next);
if (xendev->ops->alloc)
- xendev->ops->alloc(xendev);
+ xendev->ops->alloc(xendev);
return xendev;
}
@@ -251,28 +251,28 @@ static struct XenDevice *xen_be_del_xendev(int dom, int
dev)
xendev = xnext;
xnext = xendev->next.tqe_next;
- if (xendev->dom != dom)
- continue;
- if (xendev->dev != dev && dev != -1)
- continue;
+ if (xendev->dom != dom)
+ continue;
+ if (xendev->dev != dev && dev != -1)
+ continue;
- if (xendev->ops->free)
- xendev->ops->free(xendev);
+ if (xendev->ops->free)
+ xendev->ops->free(xendev);
- if (xendev->fe) {
- char token[XEN_BUFSIZE];
- snprintf(token, sizeof(token), "fe:%p", xendev);
- xs_unwatch(xenstore, xendev->fe, token);
- qemu_free(xendev->fe);
- }
+ if (xendev->fe) {
+ char token[XEN_BUFSIZE];
+ snprintf(token, sizeof(token), "fe:%p", xendev);
+ xs_unwatch(xenstore, xendev->fe, token);
+ qemu_free(xendev->fe);
+ }
- if (xendev->evtchndev >= 0)
- xc_evtchn_close(xendev->evtchndev);
- if (xendev->gnttabdev >= 0)
- xc_gnttab_close(xendev->gnttabdev);
+ if (xendev->evtchndev >= 0)
+ xc_evtchn_close(xendev->evtchndev);
+ if (xendev->gnttabdev >= 0)
+ xc_gnttab_close(xendev->gnttabdev);
- QTAILQ_REMOVE(&xendevs, xendev, next);
- qemu_free(xendev);
+ QTAILQ_REMOVE(&xendevs, xendev, next);
+ qemu_free(xendev);
}
return NULL;
}
@@ -285,14 +285,14 @@ static struct XenDevice *xen_be_del_xendev(int dom, int
dev)
static void xen_be_backend_changed(struct XenDevice *xendev, const char *node)
{
if (node == NULL || strcmp(node, "online") == 0) {
- if (xenstore_read_be_int(xendev, "online", &xendev->online) == -1)
- xendev->online = 0;
+ if (xenstore_read_be_int(xendev, "online", &xendev->online) == -1)
+ xendev->online = 0;
}
if (node) {
- xen_be_printf(xendev, 2, "backend update: %s\n", node);
- if (xendev->ops->backend_changed)
- xendev->ops->backend_changed(xendev, node);
+ xen_be_printf(xendev, 2, "backend update: %s\n", node);
+ if (xendev->ops->backend_changed)
+ xendev->ops->backend_changed(xendev, node);
}
}
@@ -301,25 +301,25 @@ static void xen_be_frontend_changed(struct XenDevice
*xendev, const char *node)
int fe_state;
if (node == NULL || strcmp(node, "state") == 0) {
- if (xenstore_read_fe_int(xendev, "state", &fe_state) == -1)
- fe_state = XenbusStateUnknown;
- if (xendev->fe_state != fe_state)
- xen_be_printf(xendev, 1, "frontend state: %s -> %s\n",
- xenbus_strstate(xendev->fe_state),
- xenbus_strstate(fe_state));
- xendev->fe_state = fe_state;
+ if (xenstore_read_fe_int(xendev, "state", &fe_state) == -1)
+ fe_state = XenbusStateUnknown;
+ if (xendev->fe_state != fe_state)
+ xen_be_printf(xendev, 1, "frontend state: %s -> %s\n",
+ xenbus_strstate(xendev->fe_state),
+ xenbus_strstate(fe_state));
+ xendev->fe_state = fe_state;
}
if (node == NULL || strcmp(node, "protocol") == 0) {
- qemu_free(xendev->protocol);
- xendev->protocol = xenstore_read_fe_str(xendev, "protocol");
- if (xendev->protocol)
- xen_be_printf(xendev, 1, "frontend protocol: %s\n",
xendev->protocol);
+ qemu_free(xendev->protocol);
+ xendev->protocol = xenstore_read_fe_str(xendev, "protocol");
+ if (xendev->protocol)
+ xen_be_printf(xendev, 1, "frontend protocol: %s\n",
xendev->protocol);
}
if (node) {
- xen_be_printf(xendev, 2, "frontend update: %s\n", node);
- if (xendev->ops->frontend_changed)
- xendev->ops->frontend_changed(xendev, node);
+ xen_be_printf(xendev, 2, "frontend update: %s\n", node);
+ if (xendev->ops->frontend_changed)
+ xendev->ops->frontend_changed(xendev, node);
}
}
@@ -340,28 +340,28 @@ static int xen_be_try_setup(struct XenDevice *xendev)
int be_state;
if (xenstore_read_be_int(xendev, "state", &be_state) == -1) {
- xen_be_printf(xendev, 0, "reading backend state failed\n");
- return -1;
+ xen_be_printf(xendev, 0, "reading backend state failed\n");
+ return -1;
}
if (be_state != XenbusStateInitialising) {
- xen_be_printf(xendev, 0, "initial backend state is wrong (%s)\n",
- xenbus_strstate(be_state));
- return -1;
+ xen_be_printf(xendev, 0, "initial backend state is wrong (%s)\n",
+ xenbus_strstate(be_state));
+ return -1;
}
xendev->fe = xenstore_read_be_str(xendev, "frontend");
if (xendev->fe == NULL) {
- xen_be_printf(xendev, 0, "reading frontend path failed\n");
- return -1;
+ xen_be_printf(xendev, 0, "reading frontend path failed\n");
+ return -1;
}
/* setup frontend watch */
snprintf(token, sizeof(token), "fe:%p", xendev);
if (!xs_watch(xenstore, xendev->fe, token)) {
- xen_be_printf(xendev, 0, "watching frontend path (%s) failed\n",
- xendev->fe);
- return -1;
+ xen_be_printf(xendev, 0, "watching frontend path (%s) failed\n",
+ xendev->fe);
+ return -1;
}
xen_be_set_state(xendev, XenbusStateInitialising);
@@ -383,15 +383,15 @@ static int xen_be_try_init(struct XenDevice *xendev)
int rc = 0;
if (!xendev->online) {
- xen_be_printf(xendev, 1, "not online\n");
- return -1;
+ xen_be_printf(xendev, 1, "not online\n");
+ return -1;
}
if (xendev->ops->init)
- rc = xendev->ops->init(xendev);
+ rc = xendev->ops->init(xendev);
if (rc != 0) {
- xen_be_printf(xendev, 1, "init() failed\n");
- return rc;
+ xen_be_printf(xendev, 1, "init() failed\n");
+ return rc;
}
xenstore_write_be_str(xendev, "hotplug-status", "connected");
@@ -411,20 +411,20 @@ static int xen_be_try_connect(struct XenDevice *xendev)
int rc = 0;
if (xendev->fe_state != XenbusStateInitialised &&
- xendev->fe_state != XenbusStateConnected) {
- if (xendev->ops->flags & DEVOPS_FLAG_IGNORE_STATE) {
- xen_be_printf(xendev, 2, "frontend not ready, ignoring\n");
- } else {
- xen_be_printf(xendev, 2, "frontend not ready (yet)\n");
- return -1;
- }
+ xendev->fe_state != XenbusStateConnected) {
+ if (xendev->ops->flags & DEVOPS_FLAG_IGNORE_STATE) {
+ xen_be_printf(xendev, 2, "frontend not ready, ignoring\n");
+ } else {
+ xen_be_printf(xendev, 2, "frontend not ready (yet)\n");
+ return -1;
+ }
}
if (xendev->ops->connect)
- rc = xendev->ops->connect(xendev);
+ rc = xendev->ops->connect(xendev);
if (rc != 0) {
- xen_be_printf(xendev, 0, "connect() failed\n");
- return rc;
+ xen_be_printf(xendev, 0, "connect() failed\n");
+ return rc;
}
xen_be_set_state(xendev, XenbusStateConnected);
@@ -441,7 +441,7 @@ static void xen_be_disconnect(struct XenDevice *xendev,
enum xenbus_state state)
if (xendev->be_state != XenbusStateClosing &&
xendev->be_state != XenbusStateClosed &&
xendev->ops->disconnect)
- xendev->ops->disconnect(xendev);
+ xendev->ops->disconnect(xendev);
if (xendev->be_state != state)
xen_be_set_state(xendev, state);
}
@@ -468,31 +468,31 @@ void xen_be_check_state(struct XenDevice *xendev)
/* frontend may request shutdown from almost anywhere */
if (xendev->fe_state == XenbusStateClosing ||
- xendev->fe_state == XenbusStateClosed) {
- xen_be_disconnect(xendev, xendev->fe_state);
- return;
+ xendev->fe_state == XenbusStateClosed) {
+ xen_be_disconnect(xendev, xendev->fe_state);
+ return;
}
/* check for possible backend state transitions */
for (;;) {
- switch (xendev->be_state) {
- case XenbusStateUnknown:
- rc = xen_be_try_setup(xendev);
- break;
- case XenbusStateInitialising:
- rc = xen_be_try_init(xendev);
- break;
- case XenbusStateInitWait:
- rc = xen_be_try_connect(xendev);
- break;
+ switch (xendev->be_state) {
+ case XenbusStateUnknown:
+ rc = xen_be_try_setup(xendev);
+ break;
+ case XenbusStateInitialising:
+ rc = xen_be_try_init(xendev);
+ break;
+ case XenbusStateInitWait:
+ rc = xen_be_try_connect(xendev);
+ break;
case XenbusStateClosed:
rc = xen_be_try_reset(xendev);
break;
- default:
- rc = -1;
- }
- if (rc != 0)
- break;
+ default:
+ rc = -1;
+ }
+ if (rc != 0)
+ break;
}
}
@@ -511,26 +511,26 @@ static int xenstore_scan(const char *type, int dom,
struct XenDevOps *ops)
snprintf(path, sizeof(path), "%s/backend/%s/%d", dom0, type, dom);
free(dom0);
if (!xs_watch(xenstore, path, token)) {
- xen_be_printf(NULL, 0, "xen be: watching backend path (%s) failed\n",
path);
- return -1;
+ xen_be_printf(NULL, 0, "xen be: watching backend path (%s) failed\n",
path);
+ return -1;
}
/* look for backends */
dev = xs_directory(xenstore, 0, path, &cdev);
if (!dev)
- return 0;
+ return 0;
for (j = 0; j < cdev; j++) {
- xendev = xen_be_get_xendev(type, dom, atoi(dev[j]), ops);
- if (xendev == NULL)
- continue;
- xen_be_check_state(xendev);
+ xendev = xen_be_get_xendev(type, dom, atoi(dev[j]), ops);
+ if (xendev == NULL)
+ continue;
+ xen_be_check_state(xendev);
}
free(dev);
return 0;
}
static void xenstore_update_be(char *watch, char *type, int dom,
- struct XenDevOps *ops)
+ struct XenDevOps *ops)
{
struct XenDevice *xendev;
char path[XEN_BUFSIZE], *dom0;
@@ -540,24 +540,24 @@ static void xenstore_update_be(char *watch, char *type,
int dom,
len = snprintf(path, sizeof(path), "%s/backend/%s/%d", dom0, type, dom);
free(dom0);
if (strncmp(path, watch, len) != 0)
- return;
+ return;
if (sscanf(watch+len, "/%u/%255s", &dev, path) != 2) {
- strcpy(path, "");
- if (sscanf(watch+len, "/%u", &dev) != 1)
- dev = -1;
+ strcpy(path, "");
+ if (sscanf(watch+len, "/%u", &dev) != 1)
+ dev = -1;
}
if (dev == -1)
- return;
+ return;
if (0) {
- /* FIXME: detect devices being deleted from xenstore ... */
- xen_be_del_xendev(dom, dev);
+ /* FIXME: detect devices being deleted from xenstore ... */
+ xen_be_del_xendev(dom, dev);
}
xendev = xen_be_get_xendev(type, dom, dev, ops);
if (xendev != NULL) {
- xen_be_backend_changed(xendev, path);
- xen_be_check_state(xendev);
+ xen_be_backend_changed(xendev, path);
+ xen_be_check_state(xendev);
}
}
@@ -568,9 +568,9 @@ static void xenstore_update_fe(char *watch, struct
XenDevice *xendev)
len = strlen(xendev->fe);
if (strncmp(xendev->fe, watch, len) != 0)
- return;
+ return;
if (watch[len] != '/')
- return;
+ return;
node = watch + len + 1;
xen_be_frontend_changed(xendev, node);
@@ -585,13 +585,13 @@ static void xenstore_update(void *unused)
vec = xs_read_watch(xenstore, &count);
if (vec == NULL)
- goto cleanup;
+ goto cleanup;
if (sscanf(vec[XS_WATCH_TOKEN], "be:%" PRIxPTR ":%d:%" PRIxPTR,
&type, &dom, &ops) == 3)
- xenstore_update_be(vec[XS_WATCH_PATH], (void*)type, dom, (void*)ops);
+ xenstore_update_be(vec[XS_WATCH_PATH], (void*)type, dom, (void*)ops);
if (sscanf(vec[XS_WATCH_TOKEN], "fe:%" PRIxPTR, &ptr) == 1)
- xenstore_update_fe(vec[XS_WATCH_PATH], (void*)ptr);
+ xenstore_update_fe(vec[XS_WATCH_PATH], (void*)ptr);
cleanup:
free(vec);
@@ -604,14 +604,14 @@ static void xen_be_evtchn_event(void *opaque)
port = xc_evtchn_pending(xendev->evtchndev);
if (port != xendev->local_port) {
- xen_be_printf(xendev, 0, "xc_evtchn_pending returned %d (expected
%d)\n",
- port, xendev->local_port);
- return;
+ xen_be_printf(xendev, 0, "xc_evtchn_pending returned %d (expected
%d)\n",
+ port, xendev->local_port);
+ return;
}
xc_evtchn_unmask(xendev->evtchndev, port);
if (xendev->ops->event)
- xendev->ops->event(xendev);
+ xendev->ops->event(xendev);
}
/* -------------------------------------------------------------------- */
@@ -620,17 +620,17 @@ int xen_be_init(void)
{
xenstore = xs_daemon_open();
if (!xenstore) {
- xen_be_printf(NULL, 0, "can't connect to xenstored\n");
- return -1;
+ xen_be_printf(NULL, 0, "can't connect to xenstored\n");
+ return -1;
}
if (qemu_set_fd_handler(xs_fileno(xenstore), xenstore_update, NULL, NULL)
< 0)
- goto err;
+ goto err;
xen_xc = xc_interface_open();
if (xen_xc == -1) {
- xen_be_printf(NULL, 0, "can't open xen interface\n");
- goto err;
+ xen_be_printf(NULL, 0, "can't open xen interface\n");
+ goto err;
}
return 0;
@@ -650,23 +650,23 @@ int xen_be_register(const char *type, struct XenDevOps
*ops)
int xen_be_bind_evtchn(struct XenDevice *xendev)
{
if (xendev->local_port != -1)
- return 0;
+ return 0;
xendev->local_port = xc_evtchn_bind_interdomain
- (xendev->evtchndev, xendev->dom, xendev->remote_port);
+ (xendev->evtchndev, xendev->dom, xendev->remote_port);
if (xendev->local_port == -1) {
- xen_be_printf(xendev, 0, "xc_evtchn_bind_interdomain failed\n");
- return -1;
+ xen_be_printf(xendev, 0, "xc_evtchn_bind_interdomain failed\n");
+ return -1;
}
xen_be_printf(xendev, 2, "bind evtchn port %d\n", xendev->local_port);
qemu_set_fd_handler(xc_evtchn_fd(xendev->evtchndev),
- xen_be_evtchn_event, NULL, xendev);
+ xen_be_evtchn_event, NULL, xendev);
return 0;
}
void xen_be_unbind_evtchn(struct XenDevice *xendev)
{
if (xendev->local_port == -1)
- return;
+ return;
qemu_set_fd_handler(xc_evtchn_fd(xendev->evtchndev), NULL, NULL, NULL);
xc_evtchn_unbind(xendev->evtchndev, xendev->local_port);
xen_be_printf(xendev, 2, "unbind evtchn port %d\n", xendev->local_port);
diff --git a/hw/xen_disk.c b/hw/xen_disk.c
index ed9e5eb..7f6aaca 100644
--- a/hw/xen_disk.c
+++ b/hw/xen_disk.c
@@ -120,17 +120,17 @@ static struct ioreq *ioreq_start(struct XenBlkDev *blkdev)
struct ioreq *ioreq = NULL;
if (QLIST_EMPTY(&blkdev->freelist)) {
- if (blkdev->requests_total >= max_requests)
- goto out;
- /* allocate new struct */
- ioreq = qemu_mallocz(sizeof(*ioreq));
- ioreq->blkdev = blkdev;
- blkdev->requests_total++;
+ if (blkdev->requests_total >= max_requests)
+ goto out;
+ /* allocate new struct */
+ ioreq = qemu_mallocz(sizeof(*ioreq));
+ ioreq->blkdev = blkdev;
+ blkdev->requests_total++;
qemu_iovec_init(&ioreq->v, BLKIF_MAX_SEGMENTS_PER_REQUEST);
} else {
- /* get one from freelist */
- ioreq = QLIST_FIRST(&blkdev->freelist);
- QLIST_REMOVE(ioreq, list);
+ /* get one from freelist */
+ ioreq = QLIST_FIRST(&blkdev->freelist);
+ QLIST_REMOVE(ioreq, list);
qemu_iovec_reset(&ioreq->v);
}
QLIST_INSERT_HEAD(&blkdev->inflight, ioreq, list);
@@ -173,30 +173,30 @@ static int ioreq_parse(struct ioreq *ioreq)
int i;
xen_be_printf(&blkdev->xendev, 3,
- "op %d, nr %d, handle %d, id %" PRId64 ", sector %" PRId64
"\n",
- ioreq->req.operation, ioreq->req.nr_segments,
- ioreq->req.handle, ioreq->req.id, ioreq->req.sector_number);
+ "op %d, nr %d, handle %d, id %" PRId64 ", sector %" PRId64
"\n",
+ ioreq->req.operation, ioreq->req.nr_segments,
+ ioreq->req.handle, ioreq->req.id, ioreq->req.sector_number);
switch (ioreq->req.operation) {
case BLKIF_OP_READ:
- ioreq->prot = PROT_WRITE; /* to memory */
- break;
+ ioreq->prot = PROT_WRITE; /* to memory */
+ break;
case BLKIF_OP_WRITE_BARRIER:
if (!ioreq->req.nr_segments) {
ioreq->presync = 1;
return 0;
}
- if (!syncwrite)
- ioreq->presync = ioreq->postsync = 1;
- /* fall through */
+ if (!syncwrite)
+ ioreq->presync = ioreq->postsync = 1;
+ /* fall through */
case BLKIF_OP_WRITE:
- ioreq->prot = PROT_READ; /* from memory */
- if (syncwrite)
- ioreq->postsync = 1;
- break;
+ ioreq->prot = PROT_READ; /* from memory */
+ if (syncwrite)
+ ioreq->postsync = 1;
+ break;
default:
- xen_be_printf(&blkdev->xendev, 0, "error: unknown operation (%d)\n",
- ioreq->req.operation);
- goto err;
+ xen_be_printf(&blkdev->xendev, 0, "error: unknown operation (%d)\n",
+ ioreq->req.operation);
+ goto err;
};
if (ioreq->req.operation != BLKIF_OP_READ && blkdev->mode[0] != 'w') {
@@ -206,29 +206,29 @@ static int ioreq_parse(struct ioreq *ioreq)
ioreq->start = ioreq->req.sector_number * blkdev->file_blk;
for (i = 0; i < ioreq->req.nr_segments; i++) {
- if (i == BLKIF_MAX_SEGMENTS_PER_REQUEST) {
- xen_be_printf(&blkdev->xendev, 0, "error: nr_segments too big\n");
- goto err;
- }
- if (ioreq->req.seg[i].first_sect > ioreq->req.seg[i].last_sect) {
- xen_be_printf(&blkdev->xendev, 0, "error: first > last sector\n");
- goto err;
- }
- if (ioreq->req.seg[i].last_sect * BLOCK_SIZE >= XC_PAGE_SIZE) {
- xen_be_printf(&blkdev->xendev, 0, "error: page crossing\n");
- goto err;
- }
-
- ioreq->domids[i] = blkdev->xendev.dom;
- ioreq->refs[i] = ioreq->req.seg[i].gref;
-
- mem = ioreq->req.seg[i].first_sect * blkdev->file_blk;
- len = (ioreq->req.seg[i].last_sect - ioreq->req.seg[i].first_sect + 1)
* blkdev->file_blk;
+ if (i == BLKIF_MAX_SEGMENTS_PER_REQUEST) {
+ xen_be_printf(&blkdev->xendev, 0, "error: nr_segments too big\n");
+ goto err;
+ }
+ if (ioreq->req.seg[i].first_sect > ioreq->req.seg[i].last_sect) {
+ xen_be_printf(&blkdev->xendev, 0, "error: first > last sector\n");
+ goto err;
+ }
+ if (ioreq->req.seg[i].last_sect * BLOCK_SIZE >= XC_PAGE_SIZE) {
+ xen_be_printf(&blkdev->xendev, 0, "error: page crossing\n");
+ goto err;
+ }
+
+ ioreq->domids[i] = blkdev->xendev.dom;
+ ioreq->refs[i] = ioreq->req.seg[i].gref;
+
+ mem = ioreq->req.seg[i].first_sect * blkdev->file_blk;
+ len = (ioreq->req.seg[i].last_sect - ioreq->req.seg[i].first_sect + 1)
* blkdev->file_blk;
qemu_iovec_add(&ioreq->v, (void*)mem, len);
}
if (ioreq->start + ioreq->v.size > blkdev->file_size) {
- xen_be_printf(&blkdev->xendev, 0, "error: access beyond end of file\n");
- goto err;
+ xen_be_printf(&blkdev->xendev, 0, "error: access beyond end of
file\n");
+ goto err;
}
return 0;
@@ -245,23 +245,23 @@ static void ioreq_unmap(struct ioreq *ioreq)
if (ioreq->v.niov == 0)
return;
if (batch_maps) {
- if (!ioreq->pages)
- return;
- if (xc_gnttab_munmap(gnt, ioreq->pages, ioreq->v.niov) != 0)
- xen_be_printf(&ioreq->blkdev->xendev, 0, "xc_gnttab_munmap failed:
%s\n",
- strerror(errno));
- ioreq->blkdev->cnt_map -= ioreq->v.niov;
- ioreq->pages = NULL;
+ if (!ioreq->pages)
+ return;
+ if (xc_gnttab_munmap(gnt, ioreq->pages, ioreq->v.niov) != 0)
+ xen_be_printf(&ioreq->blkdev->xendev, 0, "xc_gnttab_munmap failed:
%s\n",
+ strerror(errno));
+ ioreq->blkdev->cnt_map -= ioreq->v.niov;
+ ioreq->pages = NULL;
} else {
- for (i = 0; i < ioreq->v.niov; i++) {
- if (!ioreq->page[i])
- continue;
- if (xc_gnttab_munmap(gnt, ioreq->page[i], 1) != 0)
- xen_be_printf(&ioreq->blkdev->xendev, 0, "xc_gnttab_munmap
failed: %s\n",
- strerror(errno));
- ioreq->blkdev->cnt_map--;
- ioreq->page[i] = NULL;
- }
+ for (i = 0; i < ioreq->v.niov; i++) {
+ if (!ioreq->page[i])
+ continue;
+ if (xc_gnttab_munmap(gnt, ioreq->page[i], 1) != 0)
+ xen_be_printf(&ioreq->blkdev->xendev, 0, "xc_gnttab_munmap
failed: %s\n",
+ strerror(errno));
+ ioreq->blkdev->cnt_map--;
+ ioreq->page[i] = NULL;
+ }
}
}
@@ -273,32 +273,32 @@ static int ioreq_map(struct ioreq *ioreq)
if (ioreq->v.niov == 0)
return 0;
if (batch_maps) {
- ioreq->pages = xc_gnttab_map_grant_refs
- (gnt, ioreq->v.niov, ioreq->domids, ioreq->refs, ioreq->prot);
- if (ioreq->pages == NULL) {
- xen_be_printf(&ioreq->blkdev->xendev, 0,
- "can't map %d grant refs (%s, %d maps)\n",
- ioreq->v.niov, strerror(errno),
ioreq->blkdev->cnt_map);
- return -1;
- }
- for (i = 0; i < ioreq->v.niov; i++)
- ioreq->v.iov[i].iov_base = ioreq->pages + i * XC_PAGE_SIZE +
- (uintptr_t)ioreq->v.iov[i].iov_base;
- ioreq->blkdev->cnt_map += ioreq->v.niov;
+ ioreq->pages = xc_gnttab_map_grant_refs
+ (gnt, ioreq->v.niov, ioreq->domids, ioreq->refs, ioreq->prot);
+ if (ioreq->pages == NULL) {
+ xen_be_printf(&ioreq->blkdev->xendev, 0,
+ "can't map %d grant refs (%s, %d maps)\n",
+ ioreq->v.niov, strerror(errno),
ioreq->blkdev->cnt_map);
+ return -1;
+ }
+ for (i = 0; i < ioreq->v.niov; i++)
+ ioreq->v.iov[i].iov_base = ioreq->pages + i * XC_PAGE_SIZE +
+ (uintptr_t)ioreq->v.iov[i].iov_base;
+ ioreq->blkdev->cnt_map += ioreq->v.niov;
} else {
- for (i = 0; i < ioreq->v.niov; i++) {
- ioreq->page[i] = xc_gnttab_map_grant_ref
- (gnt, ioreq->domids[i], ioreq->refs[i], ioreq->prot);
- if (ioreq->page[i] == NULL) {
- xen_be_printf(&ioreq->blkdev->xendev, 0,
- "can't map grant ref %d (%s, %d maps)\n",
- ioreq->refs[i], strerror(errno),
ioreq->blkdev->cnt_map);
- ioreq_unmap(ioreq);
- return -1;
- }
- ioreq->v.iov[i].iov_base = ioreq->page[i] +
(uintptr_t)ioreq->v.iov[i].iov_base;
- ioreq->blkdev->cnt_map++;
- }
+ for (i = 0; i < ioreq->v.niov; i++) {
+ ioreq->page[i] = xc_gnttab_map_grant_ref
+ (gnt, ioreq->domids[i], ioreq->refs[i], ioreq->prot);
+ if (ioreq->page[i] == NULL) {
+ xen_be_printf(&ioreq->blkdev->xendev, 0,
+ "can't map grant ref %d (%s, %d maps)\n",
+ ioreq->refs[i], strerror(errno),
ioreq->blkdev->cnt_map);
+ ioreq_unmap(ioreq);
+ return -1;
+ }
+ ioreq->v.iov[i].iov_base = ioreq->page[i] +
(uintptr_t)ioreq->v.iov[i].iov_base;
+ ioreq->blkdev->cnt_map++;
+ }
}
return 0;
}
@@ -310,53 +310,53 @@ static int ioreq_runio_qemu_sync(struct ioreq *ioreq)
off_t pos;
if (ioreq->req.nr_segments && ioreq_map(ioreq) == -1)
- goto err;
+ goto err;
if (ioreq->presync)
- bdrv_flush(blkdev->bs);
+ bdrv_flush(blkdev->bs);
switch (ioreq->req.operation) {
case BLKIF_OP_READ:
- pos = ioreq->start;
- for (i = 0; i < ioreq->v.niov; i++) {
- rc = bdrv_read(blkdev->bs, pos / BLOCK_SIZE,
- ioreq->v.iov[i].iov_base,
- ioreq->v.iov[i].iov_len / BLOCK_SIZE);
- if (rc != 0) {
- xen_be_printf(&blkdev->xendev, 0, "rd I/O error (%p, len
%zd)\n",
- ioreq->v.iov[i].iov_base,
- ioreq->v.iov[i].iov_len);
- goto err;
- }
- len += ioreq->v.iov[i].iov_len;
- pos += ioreq->v.iov[i].iov_len;
- }
- break;
+ pos = ioreq->start;
+ for (i = 0; i < ioreq->v.niov; i++) {
+ rc = bdrv_read(blkdev->bs, pos / BLOCK_SIZE,
+ ioreq->v.iov[i].iov_base,
+ ioreq->v.iov[i].iov_len / BLOCK_SIZE);
+ if (rc != 0) {
+ xen_be_printf(&blkdev->xendev, 0, "rd I/O error (%p, len
%zd)\n",
+ ioreq->v.iov[i].iov_base,
+ ioreq->v.iov[i].iov_len);
+ goto err;
+ }
+ len += ioreq->v.iov[i].iov_len;
+ pos += ioreq->v.iov[i].iov_len;
+ }
+ break;
case BLKIF_OP_WRITE:
case BLKIF_OP_WRITE_BARRIER:
if (!ioreq->req.nr_segments)
break;
- pos = ioreq->start;
- for (i = 0; i < ioreq->v.niov; i++) {
- rc = bdrv_write(blkdev->bs, pos / BLOCK_SIZE,
- ioreq->v.iov[i].iov_base,
- ioreq->v.iov[i].iov_len / BLOCK_SIZE);
- if (rc != 0) {
- xen_be_printf(&blkdev->xendev, 0, "wr I/O error (%p, len
%zd)\n",
- ioreq->v.iov[i].iov_base,
- ioreq->v.iov[i].iov_len);
- goto err;
- }
- len += ioreq->v.iov[i].iov_len;
- pos += ioreq->v.iov[i].iov_len;
- }
- break;
+ pos = ioreq->start;
+ for (i = 0; i < ioreq->v.niov; i++) {
+ rc = bdrv_write(blkdev->bs, pos / BLOCK_SIZE,
+ ioreq->v.iov[i].iov_base,
+ ioreq->v.iov[i].iov_len / BLOCK_SIZE);
+ if (rc != 0) {
+ xen_be_printf(&blkdev->xendev, 0, "wr I/O error (%p, len
%zd)\n",
+ ioreq->v.iov[i].iov_base,
+ ioreq->v.iov[i].iov_len);
+ goto err;
+ }
+ len += ioreq->v.iov[i].iov_len;
+ pos += ioreq->v.iov[i].iov_len;
+ }
+ break;
default:
- /* unknown operation (shouldn't happen -- parse catches this) */
- goto err;
+ /* unknown operation (shouldn't happen -- parse catches this) */
+ goto err;
}
if (ioreq->postsync)
- bdrv_flush(blkdev->bs);
+ bdrv_flush(blkdev->bs);
ioreq->status = BLKIF_RSP_OKAY;
ioreq_unmap(ioreq);
@@ -393,11 +393,11 @@ static int ioreq_runio_qemu_aio(struct ioreq *ioreq)
struct XenBlkDev *blkdev = ioreq->blkdev;
if (ioreq->req.nr_segments && ioreq_map(ioreq) == -1)
- goto err;
+ goto err;
ioreq->aio_inflight++;
if (ioreq->presync)
- bdrv_flush(blkdev->bs); /* FIXME: aio_flush() ??? */
+ bdrv_flush(blkdev->bs); /* FIXME: aio_flush() ??? */
switch (ioreq->req.operation) {
case BLKIF_OP_READ:
@@ -405,7 +405,7 @@ static int ioreq_runio_qemu_aio(struct ioreq *ioreq)
bdrv_aio_readv(blkdev->bs, ioreq->start / BLOCK_SIZE,
&ioreq->v, ioreq->v.size / BLOCK_SIZE,
qemu_aio_complete, ioreq);
- break;
+ break;
case BLKIF_OP_WRITE:
case BLKIF_OP_WRITE_BARRIER:
ioreq->aio_inflight++;
@@ -414,14 +414,14 @@ static int ioreq_runio_qemu_aio(struct ioreq *ioreq)
bdrv_aio_writev(blkdev->bs, ioreq->start / BLOCK_SIZE,
&ioreq->v, ioreq->v.size / BLOCK_SIZE,
qemu_aio_complete, ioreq);
- break;
+ break;
default:
- /* unknown operation (shouldn't happen -- parse catches this) */
- goto err;
+ /* unknown operation (shouldn't happen -- parse catches this) */
+ goto err;
}
if (ioreq->postsync)
- bdrv_flush(blkdev->bs); /* FIXME: aio_flush() ??? */
+ bdrv_flush(blkdev->bs); /* FIXME: aio_flush() ??? */
qemu_aio_complete(ioreq, 0);
return 0;
@@ -446,36 +446,36 @@ static int blk_send_response_one(struct ioreq *ioreq)
/* Place on the response ring for the relevant domain. */
switch (blkdev->protocol) {
case BLKIF_PROTOCOL_NATIVE:
- dst = RING_GET_RESPONSE(&blkdev->rings.native,
blkdev->rings.native.rsp_prod_pvt);
- break;
+ dst = RING_GET_RESPONSE(&blkdev->rings.native,
blkdev->rings.native.rsp_prod_pvt);
+ break;
case BLKIF_PROTOCOL_X86_32:
dst = RING_GET_RESPONSE(&blkdev->rings.x86_32_part,
blkdev->rings.x86_32_part.rsp_prod_pvt);
- break;
+ break;
case BLKIF_PROTOCOL_X86_64:
dst = RING_GET_RESPONSE(&blkdev->rings.x86_64_part,
blkdev->rings.x86_64_part.rsp_prod_pvt);
- break;
+ break;
default:
- dst = NULL;
+ dst = NULL;
}
memcpy(dst, &resp, sizeof(resp));
blkdev->rings.common.rsp_prod_pvt++;
RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(&blkdev->rings.common, send_notify);
if (blkdev->rings.common.rsp_prod_pvt == blkdev->rings.common.req_cons) {
- /*
- * Tail check for pending requests. Allows frontend to avoid
- * notifications if requests are already in flight (lower
- * overheads and promotes batching).
- */
- RING_FINAL_CHECK_FOR_REQUESTS(&blkdev->rings.common, have_requests);
+ /*
+ * Tail check for pending requests. Allows frontend to avoid
+ * notifications if requests are already in flight (lower
+ * overheads and promotes batching).
+ */
+ RING_FINAL_CHECK_FOR_REQUESTS(&blkdev->rings.common, have_requests);
} else if (RING_HAS_UNCONSUMED_REQUESTS(&blkdev->rings.common)) {
- have_requests = 1;
+ have_requests = 1;
}
if (have_requests)
- blkdev->more_work++;
+ blkdev->more_work++;
return send_notify;
}
@@ -487,28 +487,28 @@ static void blk_send_response_all(struct XenBlkDev
*blkdev)
while (!QLIST_EMPTY(&blkdev->finished)) {
ioreq = QLIST_FIRST(&blkdev->finished);
- send_notify += blk_send_response_one(ioreq);
- ioreq_release(ioreq);
+ send_notify += blk_send_response_one(ioreq);
+ ioreq_release(ioreq);
}
if (send_notify)
- xen_be_send_notify(&blkdev->xendev);
+ xen_be_send_notify(&blkdev->xendev);
}
static int blk_get_request(struct XenBlkDev *blkdev, struct ioreq *ioreq,
RING_IDX rc)
{
switch (blkdev->protocol) {
case BLKIF_PROTOCOL_NATIVE:
- memcpy(&ioreq->req, RING_GET_REQUEST(&blkdev->rings.native, rc),
- sizeof(ioreq->req));
- break;
+ memcpy(&ioreq->req, RING_GET_REQUEST(&blkdev->rings.native, rc),
+ sizeof(ioreq->req));
+ break;
case BLKIF_PROTOCOL_X86_32:
blkif_get_x86_32_req(&ioreq->req,
RING_GET_REQUEST(&blkdev->rings.x86_32_part, rc));
- break;
+ break;
case BLKIF_PROTOCOL_X86_64:
blkif_get_x86_64_req(&ioreq->req,
RING_GET_REQUEST(&blkdev->rings.x86_64_part, rc));
- break;
+ break;
}
return 0;
}
@@ -589,44 +589,44 @@ static int blk_init(struct XenDevice *xendev)
/* read xenstore entries */
if (blkdev->params == NULL) {
- blkdev->params = xenstore_read_be_str(&blkdev->xendev, "params");
+ blkdev->params = xenstore_read_be_str(&blkdev->xendev, "params");
h = strchr(blkdev->params, ':');
- if (h != NULL) {
- blkdev->fileproto = blkdev->params;
- blkdev->filename = h+1;
- *h = 0;
- } else {
- blkdev->fileproto = "<unset>";
- blkdev->filename = blkdev->params;
- }
+ if (h != NULL) {
+ blkdev->fileproto = blkdev->params;
+ blkdev->filename = h+1;
+ *h = 0;
+ } else {
+ blkdev->fileproto = "<unset>";
+ blkdev->filename = blkdev->params;
+ }
}
if (blkdev->mode == NULL)
- blkdev->mode = xenstore_read_be_str(&blkdev->xendev, "mode");
+ blkdev->mode = xenstore_read_be_str(&blkdev->xendev, "mode");
if (blkdev->type == NULL)
- blkdev->type = xenstore_read_be_str(&blkdev->xendev, "type");
+ blkdev->type = xenstore_read_be_str(&blkdev->xendev, "type");
if (blkdev->dev == NULL)
- blkdev->dev = xenstore_read_be_str(&blkdev->xendev, "dev");
+ blkdev->dev = xenstore_read_be_str(&blkdev->xendev, "dev");
if (blkdev->devtype == NULL)
- blkdev->devtype = xenstore_read_be_str(&blkdev->xendev, "device-type");
+ blkdev->devtype = xenstore_read_be_str(&blkdev->xendev, "device-type");
/* do we have all we need? */
if (blkdev->params == NULL ||
- blkdev->mode == NULL ||
- blkdev->type == NULL ||
- blkdev->dev == NULL)
- return -1;
+ blkdev->mode == NULL ||
+ blkdev->type == NULL ||
+ blkdev->dev == NULL)
+ return -1;
/* read-only ? */
if (strcmp(blkdev->mode, "w") == 0) {
- qflags = BDRV_O_RDWR;
+ qflags = BDRV_O_RDWR;
} else {
- qflags = 0;
- info |= VDISK_READONLY;
+ qflags = 0;
+ info |= VDISK_READONLY;
}
/* cdrom ? */
if (blkdev->devtype && !strcmp(blkdev->devtype, "cdrom"))
- info |= VDISK_CDROM;
+ info |= VDISK_CDROM;
/* init qemu block driver */
index = (blkdev->xendev.dev - 202 * 256) / 16;
@@ -643,7 +643,7 @@ static int blk_init(struct XenDevice *xendev)
} else {
/* setup via qemu cmdline -> already setup for us */
xen_be_printf(&blkdev->xendev, 2, "get configured bdrv (cmdline
setup)\n");
- blkdev->bs = blkdev->dinfo->bdrv;
+ blkdev->bs = blkdev->dinfo->bdrv;
}
blkdev->file_blk = BLOCK_SIZE;
blkdev->file_size = bdrv_getlength(blkdev->bs);
@@ -651,21 +651,21 @@ static int blk_init(struct XenDevice *xendev)
xen_be_printf(&blkdev->xendev, 1, "bdrv_getlength: %d (%s) | drv %s\n",
(int)blkdev->file_size, strerror(-blkdev->file_size),
blkdev->bs->drv ? blkdev->bs->drv->format_name : "-");
- blkdev->file_size = 0;
+ blkdev->file_size = 0;
}
have_barriers = blkdev->bs->drv && blkdev->bs->drv->bdrv_flush ? 1 : 0;
xen_be_printf(xendev, 1, "type \"%s\", fileproto \"%s\", filename \"%s\","
- " size %" PRId64 " (%" PRId64 " MB)\n",
- blkdev->type, blkdev->fileproto, blkdev->filename,
- blkdev->file_size, blkdev->file_size >> 20);
+ " size %" PRId64 " (%" PRId64 " MB)\n",
+ blkdev->type, blkdev->fileproto, blkdev->filename,
+ blkdev->file_size, blkdev->file_size >> 20);
/* fill info */
xenstore_write_be_int(&blkdev->xendev, "feature-barrier", have_barriers);
xenstore_write_be_int(&blkdev->xendev, "info", info);
xenstore_write_be_int(&blkdev->xendev, "sector-size",
blkdev->file_blk);
xenstore_write_be_int(&blkdev->xendev, "sectors",
- blkdev->file_size / blkdev->file_blk);
+ blkdev->file_size / blkdev->file_blk);
return 0;
}
@@ -674,10 +674,10 @@ static int blk_connect(struct XenDevice *xendev)
struct XenBlkDev *blkdev = container_of(xendev, struct XenBlkDev, xendev);
if (xenstore_read_fe_int(&blkdev->xendev, "ring-ref", &blkdev->ring_ref)
== -1)
- return -1;
+ return -1;
if (xenstore_read_fe_int(&blkdev->xendev, "event-channel",
&blkdev->xendev.remote_port) == -1)
- return -1;
+ return -1;
blkdev->protocol = BLKIF_PROTOCOL_NATIVE;
if (blkdev->xendev.protocol) {
@@ -688,42 +688,42 @@ static int blk_connect(struct XenDevice *xendev)
}
blkdev->sring = xc_gnttab_map_grant_ref(blkdev->xendev.gnttabdev,
- blkdev->xendev.dom,
- blkdev->ring_ref,
- PROT_READ | PROT_WRITE);
+ blkdev->xendev.dom,
+ blkdev->ring_ref,
+ PROT_READ | PROT_WRITE);
if (!blkdev->sring)
- return -1;
+ return -1;
blkdev->cnt_map++;
switch (blkdev->protocol) {
case BLKIF_PROTOCOL_NATIVE:
{
- blkif_sring_t *sring_native = blkdev->sring;
- BACK_RING_INIT(&blkdev->rings.native, sring_native, XC_PAGE_SIZE);
- break;
+ blkif_sring_t *sring_native = blkdev->sring;
+ BACK_RING_INIT(&blkdev->rings.native, sring_native, XC_PAGE_SIZE);
+ break;
}
case BLKIF_PROTOCOL_X86_32:
{
- blkif_x86_32_sring_t *sring_x86_32 = blkdev->sring;
+ blkif_x86_32_sring_t *sring_x86_32 = blkdev->sring;
BACK_RING_INIT(&blkdev->rings.x86_32_part, sring_x86_32, XC_PAGE_SIZE);
- break;
+ break;
}
case BLKIF_PROTOCOL_X86_64:
{
- blkif_x86_64_sring_t *sring_x86_64 = blkdev->sring;
+ blkif_x86_64_sring_t *sring_x86_64 = blkdev->sring;
BACK_RING_INIT(&blkdev->rings.x86_64_part, sring_x86_64, XC_PAGE_SIZE);
- break;
+ break;
}
}
xen_be_bind_evtchn(&blkdev->xendev);
xen_be_printf(&blkdev->xendev, 1, "ok: proto %s, ring-ref %d, "
- "remote port %d, local port %d\n",
- blkdev->xendev.protocol, blkdev->ring_ref,
- blkdev->xendev.remote_port, blkdev->xendev.local_port);
+ "remote port %d, local port %d\n",
+ blkdev->xendev.protocol, blkdev->ring_ref,
+ blkdev->xendev.remote_port, blkdev->xendev.local_port);
return 0;
}
@@ -737,14 +737,14 @@ static void blk_disconnect(struct XenDevice *xendev)
bdrv_close(blkdev->bs);
bdrv_delete(blkdev->bs);
}
- blkdev->bs = NULL;
+ blkdev->bs = NULL;
}
xen_be_unbind_evtchn(&blkdev->xendev);
if (blkdev->sring) {
- xc_gnttab_munmap(blkdev->xendev.gnttabdev, blkdev->sring, 1);
- blkdev->cnt_map--;
- blkdev->sring = NULL;
+ xc_gnttab_munmap(blkdev->xendev.gnttabdev, blkdev->sring, 1);
+ blkdev->cnt_map--;
+ blkdev->sring = NULL;
}
}
@@ -754,10 +754,10 @@ static int blk_free(struct XenDevice *xendev)
struct ioreq *ioreq;
while (!QLIST_EMPTY(&blkdev->freelist)) {
- ioreq = QLIST_FIRST(&blkdev->freelist);
+ ioreq = QLIST_FIRST(&blkdev->freelist);
QLIST_REMOVE(ioreq, list);
qemu_iovec_destroy(&ioreq->v);
- qemu_free(ioreq);
+ qemu_free(ioreq);
}
qemu_free(blkdev->params);
diff --git a/hw/xen_nic.c b/hw/xen_nic.c
index 08055b8..8fcf856 100644
--- a/hw/xen_nic.c
+++ b/hw/xen_nic.c
@@ -75,19 +75,19 @@ static void net_tx_response(struct XenNetDev *netdev,
netif_tx_request_t *txp, i
#if 0
if (txp->flags & NETTXF_extra_info)
- RING_GET_RESPONSE(&netdev->tx_ring, ++i)->status = NETIF_RSP_NULL;
+ RING_GET_RESPONSE(&netdev->tx_ring, ++i)->status = NETIF_RSP_NULL;
#endif
netdev->tx_ring.rsp_prod_pvt = ++i;
RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(&netdev->tx_ring, notify);
if (notify)
- xen_be_send_notify(&netdev->xendev);
+ xen_be_send_notify(&netdev->xendev);
if (i == netdev->tx_ring.req_cons) {
- int more_to_do;
- RING_FINAL_CHECK_FOR_REQUESTS(&netdev->tx_ring, more_to_do);
- if (more_to_do)
- netdev->tx_work++;
+ int more_to_do;
+ RING_FINAL_CHECK_FOR_REQUESTS(&netdev->tx_ring, more_to_do);
+ if (more_to_do)
+ netdev->tx_work++;
}
}
@@ -101,10 +101,10 @@ static void net_tx_error(struct XenNetDev *netdev,
netif_tx_request_t *txp, RING
RING_IDX cons = netdev->tx_ring.req_cons;
do {
- make_tx_response(netif, txp, NETIF_RSP_ERROR);
- if (cons >= end)
- break;
- txp = RING_GET_REQUEST(&netdev->tx_ring, cons++);
+ make_tx_response(netif, txp, NETIF_RSP_ERROR);
+ if (cons >= end)
+ break;
+ txp = RING_GET_REQUEST(&netdev->tx_ring, cons++);
} while (1);
netdev->tx_ring.req_cons = cons;
netif_schedule_work(netif);
@@ -122,75 +122,75 @@ static void net_tx_packets(struct XenNetDev *netdev)
void *tmpbuf = NULL;
for (;;) {
- rc = netdev->tx_ring.req_cons;
- rp = netdev->tx_ring.sring->req_prod;
- xen_rmb(); /* Ensure we see queued requests up to 'rp'. */
+ rc = netdev->tx_ring.req_cons;
+ rp = netdev->tx_ring.sring->req_prod;
+ xen_rmb(); /* Ensure we see queued requests up to 'rp'. */
- while ((rc != rp)) {
- if (RING_REQUEST_CONS_OVERFLOW(&netdev->tx_ring, rc))
- break;
- memcpy(&txreq, RING_GET_REQUEST(&netdev->tx_ring, rc),
sizeof(txreq));
- netdev->tx_ring.req_cons = ++rc;
+ while ((rc != rp)) {
+ if (RING_REQUEST_CONS_OVERFLOW(&netdev->tx_ring, rc))
+ break;
+ memcpy(&txreq, RING_GET_REQUEST(&netdev->tx_ring, rc),
sizeof(txreq));
+ netdev->tx_ring.req_cons = ++rc;
#if 1
- /* should not happen in theory, we don't announce the *
- * feature-{sg,gso,whatelse} flags in xenstore (yet?) */
- if (txreq.flags & NETTXF_extra_info) {
- xen_be_printf(&netdev->xendev, 0, "FIXME: extra info flag\n");
- net_tx_error(netdev, &txreq, rc);
- continue;
- }
- if (txreq.flags & NETTXF_more_data) {
- xen_be_printf(&netdev->xendev, 0, "FIXME: more data flag\n");
- net_tx_error(netdev, &txreq, rc);
- continue;
- }
+ /* should not happen in theory, we don't announce the *
+ * feature-{sg,gso,whatelse} flags in xenstore (yet?) */
+ if (txreq.flags & NETTXF_extra_info) {
+ xen_be_printf(&netdev->xendev, 0, "FIXME: extra info flag\n");
+ net_tx_error(netdev, &txreq, rc);
+ continue;
+ }
+ if (txreq.flags & NETTXF_more_data) {
+ xen_be_printf(&netdev->xendev, 0, "FIXME: more data flag\n");
+ net_tx_error(netdev, &txreq, rc);
+ continue;
+ }
#endif
- if (txreq.size < 14) {
- xen_be_printf(&netdev->xendev, 0, "bad packet size: %d\n",
txreq.size);
- net_tx_error(netdev, &txreq, rc);
- continue;
- }
-
- if ((txreq.offset + txreq.size) > XC_PAGE_SIZE) {
- xen_be_printf(&netdev->xendev, 0, "error: page crossing\n");
- net_tx_error(netdev, &txreq, rc);
- continue;
- }
-
- xen_be_printf(&netdev->xendev, 3, "tx packet ref %d, off %d, len
%d, flags 0x%x%s%s%s%s\n",
- txreq.gref, txreq.offset, txreq.size, txreq.flags,
- (txreq.flags & NETTXF_csum_blank) ? " csum_blank"
: "",
- (txreq.flags & NETTXF_data_validated) ? "
data_validated" : "",
- (txreq.flags & NETTXF_more_data) ? " more_data"
: "",
- (txreq.flags & NETTXF_extra_info) ? " extra_info"
: "");
-
- page = xc_gnttab_map_grant_ref(netdev->xendev.gnttabdev,
- netdev->xendev.dom,
- txreq.gref, PROT_READ);
- if (page == NULL) {
- xen_be_printf(&netdev->xendev, 0, "error: tx gref dereference
failed (%d)\n",
+ if (txreq.size < 14) {
+ xen_be_printf(&netdev->xendev, 0, "bad packet size: %d\n",
txreq.size);
+ net_tx_error(netdev, &txreq, rc);
+ continue;
+ }
+
+ if ((txreq.offset + txreq.size) > XC_PAGE_SIZE) {
+ xen_be_printf(&netdev->xendev, 0, "error: page crossing\n");
+ net_tx_error(netdev, &txreq, rc);
+ continue;
+ }
+
+ xen_be_printf(&netdev->xendev, 3, "tx packet ref %d, off %d, len
%d, flags 0x%x%s%s%s%s\n",
+ txreq.gref, txreq.offset, txreq.size, txreq.flags,
+ (txreq.flags & NETTXF_csum_blank) ? "
csum_blank" : "",
+ (txreq.flags & NETTXF_data_validated) ? "
data_validated" : "",
+ (txreq.flags & NETTXF_more_data) ? " more_data"
: "",
+ (txreq.flags & NETTXF_extra_info) ? "
extra_info" : "");
+
+ page = xc_gnttab_map_grant_ref(netdev->xendev.gnttabdev,
+ netdev->xendev.dom,
+ txreq.gref, PROT_READ);
+ if (page == NULL) {
+ xen_be_printf(&netdev->xendev, 0, "error: tx gref dereference
failed (%d)\n",
txreq.gref);
- net_tx_error(netdev, &txreq, rc);
- continue;
- }
- if (txreq.flags & NETTXF_csum_blank) {
+ net_tx_error(netdev, &txreq, rc);
+ continue;
+ }
+ if (txreq.flags & NETTXF_csum_blank) {
/* have read-only mapping -> can't fill checksum in-place */
if (!tmpbuf)
tmpbuf = qemu_malloc(XC_PAGE_SIZE);
memcpy(tmpbuf, page + txreq.offset, txreq.size);
- net_checksum_calculate(tmpbuf, txreq.size);
+ net_checksum_calculate(tmpbuf, txreq.size);
qemu_send_packet(&netdev->nic->nc, tmpbuf, txreq.size);
} else {
qemu_send_packet(&netdev->nic->nc, page + txreq.offset,
txreq.size);
}
- xc_gnttab_munmap(netdev->xendev.gnttabdev, page, 1);
- net_tx_response(netdev, &txreq, NETIF_RSP_OKAY);
- }
- if (!netdev->tx_work)
- break;
- netdev->tx_work = 0;
+ xc_gnttab_munmap(netdev->xendev.gnttabdev, page, 1);
+ net_tx_response(netdev, &txreq, NETIF_RSP_OKAY);
+ }
+ if (!netdev->tx_work)
+ break;
+ netdev->tx_work = 0;
}
qemu_free(tmpbuf);
}
@@ -198,9 +198,9 @@ static void net_tx_packets(struct XenNetDev *netdev)
/* ------------------------------------------------------------- */
static void net_rx_response(struct XenNetDev *netdev,
- netif_rx_request_t *req, int8_t st,
- uint16_t offset, uint16_t size,
- uint16_t flags)
+ netif_rx_request_t *req, int8_t st,
+ uint16_t offset, uint16_t size,
+ uint16_t flags)
{
RING_IDX i = netdev->rx_ring.rsp_prod_pvt;
netif_rx_response_t *resp;
@@ -212,15 +212,15 @@ static void net_rx_response(struct XenNetDev *netdev,
resp->id = req->id;
resp->status = (int16_t)size;
if (st < 0)
- resp->status = (int16_t)st;
+ resp->status = (int16_t)st;
xen_be_printf(&netdev->xendev, 3, "rx response: idx %d, status %d, flags
0x%x\n",
- i, resp->status, resp->flags);
+ i, resp->status, resp->flags);
netdev->rx_ring.rsp_prod_pvt = ++i;
RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(&netdev->rx_ring, notify);
if (notify)
- xen_be_send_notify(&netdev->xendev);
+ xen_be_send_notify(&netdev->xendev);
}
#define NET_IP_ALIGN 2
@@ -231,16 +231,16 @@ static int net_rx_ok(VLANClientState *nc)
RING_IDX rc, rp;
if (netdev->xendev.be_state != XenbusStateConnected)
- return 0;
+ return 0;
rc = netdev->rx_ring.req_cons;
rp = netdev->rx_ring.sring->req_prod;
xen_rmb();
if (rc == rp || RING_REQUEST_CONS_OVERFLOW(&netdev->rx_ring, rc)) {
- xen_be_printf(&netdev->xendev, 2, "%s: no rx buffers (%d/%d)\n",
- __FUNCTION__, rc, rp);
- return 0;
+ xen_be_printf(&netdev->xendev, 2, "%s: no rx buffers (%d/%d)\n",
+ __FUNCTION__, rc, rp);
+ return 0;
}
return 1;
}
@@ -253,33 +253,33 @@ static ssize_t net_rx_packet(VLANClientState *nc, const
uint8_t *buf, size_t siz
void *page;
if (netdev->xendev.be_state != XenbusStateConnected)
- return -1;
+ return -1;
rc = netdev->rx_ring.req_cons;
rp = netdev->rx_ring.sring->req_prod;
xen_rmb(); /* Ensure we see queued requests up to 'rp'. */
if (rc == rp || RING_REQUEST_CONS_OVERFLOW(&netdev->rx_ring, rc)) {
- xen_be_printf(&netdev->xendev, 2, "no buffer, drop packet\n");
- return -1;
+ xen_be_printf(&netdev->xendev, 2, "no buffer, drop packet\n");
+ return -1;
}
if (size > XC_PAGE_SIZE - NET_IP_ALIGN) {
- xen_be_printf(&netdev->xendev, 0, "packet too big (%lu > %ld)",
- (unsigned long)size, XC_PAGE_SIZE - NET_IP_ALIGN);
- return -1;
+ xen_be_printf(&netdev->xendev, 0, "packet too big (%lu > %ld)",
+ (unsigned long)size, XC_PAGE_SIZE - NET_IP_ALIGN);
+ return -1;
}
memcpy(&rxreq, RING_GET_REQUEST(&netdev->rx_ring, rc), sizeof(rxreq));
netdev->rx_ring.req_cons = ++rc;
page = xc_gnttab_map_grant_ref(netdev->xendev.gnttabdev,
- netdev->xendev.dom,
- rxreq.gref, PROT_WRITE);
+ netdev->xendev.dom,
+ rxreq.gref, PROT_WRITE);
if (page == NULL) {
- xen_be_printf(&netdev->xendev, 0, "error: rx gref dereference failed
(%d)\n",
+ xen_be_printf(&netdev->xendev, 0, "error: rx gref dereference failed
(%d)\n",
rxreq.gref);
- net_rx_response(netdev, &rxreq, NETIF_RSP_ERROR, 0, 0, 0);
- return -1;
+ net_rx_response(netdev, &rxreq, NETIF_RSP_ERROR, 0, 0, 0);
+ return -1;
}
memcpy(page + NET_IP_ALIGN, buf, size);
xc_gnttab_munmap(netdev->xendev.gnttabdev, page, 1);
@@ -303,11 +303,11 @@ static int net_init(struct XenDevice *xendev)
/* read xenstore entries */
if (netdev->mac == NULL)
- netdev->mac = xenstore_read_be_str(&netdev->xendev, "mac");
+ netdev->mac = xenstore_read_be_str(&netdev->xendev, "mac");
/* do we have all we need? */
if (netdev->mac == NULL)
- return -1;
+ return -1;
if (net_parse_macaddr(netdev->conf.macaddr.a, netdev->mac) < 0)
return -1;
@@ -334,41 +334,41 @@ static int net_connect(struct XenDevice *xendev)
int rx_copy;
if (xenstore_read_fe_int(&netdev->xendev, "tx-ring-ref",
- &netdev->tx_ring_ref) == -1)
- return -1;
+ &netdev->tx_ring_ref) == -1)
+ return -1;
if (xenstore_read_fe_int(&netdev->xendev, "rx-ring-ref",
- &netdev->rx_ring_ref) == -1)
- return 1;
+ &netdev->rx_ring_ref) == -1)
+ return 1;
if (xenstore_read_fe_int(&netdev->xendev, "event-channel",
- &netdev->xendev.remote_port) == -1)
- return -1;
+ &netdev->xendev.remote_port) == -1)
+ return -1;
if (xenstore_read_fe_int(&netdev->xendev, "request-rx-copy", &rx_copy) ==
-1)
- rx_copy = 0;
+ rx_copy = 0;
if (rx_copy == 0) {
- xen_be_printf(&netdev->xendev, 0, "frontend doesn't support
rx-copy.\n");
- return -1;
+ xen_be_printf(&netdev->xendev, 0, "frontend doesn't support
rx-copy.\n");
+ return -1;
}
netdev->txs = xc_gnttab_map_grant_ref(netdev->xendev.gnttabdev,
- netdev->xendev.dom,
- netdev->tx_ring_ref,
- PROT_READ | PROT_WRITE);
+ netdev->xendev.dom,
+ netdev->tx_ring_ref,
+ PROT_READ | PROT_WRITE);
netdev->rxs = xc_gnttab_map_grant_ref(netdev->xendev.gnttabdev,
- netdev->xendev.dom,
- netdev->rx_ring_ref,
- PROT_READ | PROT_WRITE);
+ netdev->xendev.dom,
+ netdev->rx_ring_ref,
+ PROT_READ | PROT_WRITE);
if (!netdev->txs || !netdev->rxs)
- return -1;
+ return -1;
BACK_RING_INIT(&netdev->tx_ring, netdev->txs, XC_PAGE_SIZE);
BACK_RING_INIT(&netdev->rx_ring, netdev->rxs, XC_PAGE_SIZE);
xen_be_bind_evtchn(&netdev->xendev);
xen_be_printf(&netdev->xendev, 1, "ok: tx-ring-ref %d, rx-ring-ref %d, "
- "remote port %d, local port %d\n",
- netdev->tx_ring_ref, netdev->rx_ring_ref,
- netdev->xendev.remote_port, netdev->xendev.local_port);
+ "remote port %d, local port %d\n",
+ netdev->tx_ring_ref, netdev->rx_ring_ref,
+ netdev->xendev.remote_port, netdev->xendev.local_port);
net_tx_packets(netdev);
return 0;
@@ -381,12 +381,12 @@ static void net_disconnect(struct XenDevice *xendev)
xen_be_unbind_evtchn(&netdev->xendev);
if (netdev->txs) {
- xc_gnttab_munmap(netdev->xendev.gnttabdev, netdev->txs, 1);
- netdev->txs = NULL;
+ xc_gnttab_munmap(netdev->xendev.gnttabdev, netdev->txs, 1);
+ netdev->txs = NULL;
}
if (netdev->rxs) {
- xc_gnttab_munmap(netdev->xendev.gnttabdev, netdev->rxs, 1);
- netdev->rxs = NULL;
+ xc_gnttab_munmap(netdev->xendev.gnttabdev, netdev->rxs, 1);
+ netdev->rxs = NULL;
}
if (netdev->nic) {
qemu_del_vlan_client(&netdev->nic->nc);
--
1.7.1
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