-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2016 Intel Corporation
*/
#include <sys/socket.h>
static int
get_hugepage_file_info(struct hugepage_file_info huges[], int max)
{
- int idx;
+ int idx, k, exist;
FILE *f;
char buf[BUFSIZ], *tmp, *tail;
char *str_underline, *str_start;
int huge_index;
uint64_t v_start, v_end;
+ struct stat stats;
f = fopen("/proc/self/maps", "r");
if (!f) {
if (sscanf(str_start, "map_%d", &huge_index) != 1)
continue;
+ /* skip duplicated file which is mapped to different regions */
+ for (k = 0, exist = -1; k < idx; ++k) {
+ if (!strcmp(huges[k].path, tmp)) {
+ exist = k;
+ break;
+ }
+ }
+ if (exist >= 0)
+ continue;
+
if (idx >= max) {
PMD_DRV_LOG(ERR, "Exceed maximum of %d", max);
goto error;
}
+
huges[idx].addr = v_start;
- huges[idx].size = v_end - v_start;
+ huges[idx].size = v_end - v_start; /* To be corrected later */
snprintf(huges[idx].path, PATH_MAX, "%s", tmp);
idx++;
}
+ /* correct the size for files who have many regions */
+ for (k = 0; k < idx; ++k) {
+ if (stat(huges[k].path, &stats) < 0) {
+ PMD_DRV_LOG(ERR, "Failed to stat %s, %s\n",
+ huges[k].path, strerror(errno));
+ continue;
+ }
+ huges[k].size = stats.st_size;
+ PMD_DRV_LOG(INFO, "file %s, size %zx\n",
+ huges[k].path, huges[k].size);
+ }
+
fclose(f);
return idx;
PMD_DRV_LOG(INFO, "%s", vhost_msg_strings[req]);
+ if (dev->is_server && vhostfd < 0)
+ return -1;
+
msg.request = req;
msg.flags = VHOST_USER_VERSION;
msg.size = 0;
return 0;
}
+#define MAX_VIRTIO_USER_BACKLOG 1
+static int
+virtio_user_start_server(struct virtio_user_dev *dev, struct sockaddr_un *un)
+{
+ int ret;
+ int flag;
+ int fd = dev->listenfd;
+
+ ret = bind(fd, (struct sockaddr *)un, sizeof(*un));
+ if (ret < 0) {
+ PMD_DRV_LOG(ERR, "failed to bind to %s: %s; remove it and try again\n",
+ dev->path, strerror(errno));
+ return -1;
+ }
+ ret = listen(fd, MAX_VIRTIO_USER_BACKLOG);
+ if (ret < 0)
+ return -1;
+
+ flag = fcntl(fd, F_GETFL);
+ fcntl(fd, F_SETFL, flag | O_NONBLOCK);
+
+ return 0;
+}
+
/**
* Set up environment to talk with a vhost user backend.
*
memset(&un, 0, sizeof(un));
un.sun_family = AF_UNIX;
snprintf(un.sun_path, sizeof(un.sun_path), "%s", dev->path);
- if (connect(fd, (struct sockaddr *)&un, sizeof(un)) < 0) {
- PMD_DRV_LOG(ERR, "connect error, %s", strerror(errno));
- close(fd);
- return -1;
+
+ if (dev->is_server) {
+ dev->listenfd = fd;
+ if (virtio_user_start_server(dev, &un) < 0) {
+ PMD_DRV_LOG(ERR, "virtio-user startup fails in server mode");
+ close(fd);
+ return -1;
+ }
+ dev->vhostfd = -1;
+ } else {
+ if (connect(fd, (struct sockaddr *)&un, sizeof(un)) < 0) {
+ PMD_DRV_LOG(ERR, "connect error, %s", strerror(errno));
+ close(fd);
+ return -1;
+ }
+ dev->vhostfd = fd;
}
- dev->vhostfd = fd;
return 0;
}
git.droids-corp.org / dpdk.git / blobdiff