summaryrefslogtreecommitdiffstats
path: root/src/spdk/lib/sock/sock.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/spdk/lib/sock/sock.c')
-rw-r--r--src/spdk/lib/sock/sock.c809
1 files changed, 809 insertions, 0 deletions
diff --git a/src/spdk/lib/sock/sock.c b/src/spdk/lib/sock/sock.c
new file mode 100644
index 000000000..5ea90385c
--- /dev/null
+++ b/src/spdk/lib/sock/sock.c
@@ -0,0 +1,809 @@
+/*-
+ * BSD LICENSE
+ *
+ * Copyright (c) Intel Corporation. All rights reserved.
+ * Copyright (c) 2020 Mellanox Technologies LTD. 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.
+ */
+
+#include "spdk/stdinc.h"
+
+#include "spdk/log.h"
+#include "spdk/sock.h"
+#include "spdk_internal/sock.h"
+#include "spdk/queue.h"
+
+#define SPDK_SOCK_DEFAULT_PRIORITY 0
+#define SPDK_SOCK_OPTS_FIELD_OK(opts, field) (offsetof(struct spdk_sock_opts, field) + sizeof(opts->field) <= (opts->opts_size))
+
+static STAILQ_HEAD(, spdk_net_impl) g_net_impls = STAILQ_HEAD_INITIALIZER(g_net_impls);
+
+struct spdk_sock_placement_id_entry {
+ int placement_id;
+ uint32_t ref;
+ struct spdk_sock_group *group;
+ STAILQ_ENTRY(spdk_sock_placement_id_entry) link;
+};
+
+static STAILQ_HEAD(, spdk_sock_placement_id_entry) g_placement_id_map = STAILQ_HEAD_INITIALIZER(
+ g_placement_id_map);
+static pthread_mutex_t g_map_table_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+/* Insert a group into the placement map.
+ * If the group is already in the map, take a reference.
+ */
+static int
+sock_map_insert(int placement_id, struct spdk_sock_group *group)
+{
+ struct spdk_sock_placement_id_entry *entry;
+
+ pthread_mutex_lock(&g_map_table_mutex);
+ STAILQ_FOREACH(entry, &g_placement_id_map, link) {
+ if (placement_id == entry->placement_id) {
+ /* The mapping already exists, it means that different sockets have
+ * the same placement_ids.
+ */
+ entry->ref++;
+ pthread_mutex_unlock(&g_map_table_mutex);
+ return 0;
+ }
+ }
+
+ entry = calloc(1, sizeof(*entry));
+ if (!entry) {
+ SPDK_ERRLOG("Cannot allocate an entry for placement_id=%u\n", placement_id);
+ pthread_mutex_unlock(&g_map_table_mutex);
+ return -ENOMEM;
+ }
+
+ entry->placement_id = placement_id;
+ entry->group = group;
+ entry->ref++;
+
+ STAILQ_INSERT_TAIL(&g_placement_id_map, entry, link);
+ pthread_mutex_unlock(&g_map_table_mutex);
+
+ return 0;
+}
+
+/* Release a reference to the group for a given placement_id.
+ * If the reference count is 0, remove the group.
+ */
+static void
+sock_map_release(int placement_id)
+{
+ struct spdk_sock_placement_id_entry *entry;
+
+ pthread_mutex_lock(&g_map_table_mutex);
+ STAILQ_FOREACH(entry, &g_placement_id_map, link) {
+ if (placement_id == entry->placement_id) {
+ assert(entry->ref > 0);
+ entry->ref--;
+ break;
+ }
+ }
+
+ pthread_mutex_unlock(&g_map_table_mutex);
+}
+
+/* Look up the group for a placement_id. */
+static void
+sock_map_lookup(int placement_id, struct spdk_sock_group **group)
+{
+ struct spdk_sock_placement_id_entry *entry;
+
+ *group = NULL;
+ pthread_mutex_lock(&g_map_table_mutex);
+ STAILQ_FOREACH(entry, &g_placement_id_map, link) {
+ if (placement_id == entry->placement_id) {
+ assert(entry->group != NULL);
+ *group = entry->group;
+ break;
+ }
+ }
+ pthread_mutex_unlock(&g_map_table_mutex);
+}
+
+/* Remove the socket group from the map table */
+static void
+sock_remove_sock_group_from_map_table(struct spdk_sock_group *group)
+{
+ struct spdk_sock_placement_id_entry *entry, *tmp;
+
+ pthread_mutex_lock(&g_map_table_mutex);
+ STAILQ_FOREACH_SAFE(entry, &g_placement_id_map, link, tmp) {
+ if (entry->group == group) {
+ STAILQ_REMOVE(&g_placement_id_map, entry, spdk_sock_placement_id_entry, link);
+ free(entry);
+ }
+ }
+ pthread_mutex_unlock(&g_map_table_mutex);
+
+}
+
+int
+spdk_sock_get_optimal_sock_group(struct spdk_sock *sock, struct spdk_sock_group **group)
+{
+ int placement_id = 0, rc;
+
+ rc = sock->net_impl->get_placement_id(sock, &placement_id);
+ if (!rc && (placement_id != 0)) {
+ sock_map_lookup(placement_id, group);
+ return 0;
+ } else {
+ return -1;
+ }
+}
+
+int
+spdk_sock_getaddr(struct spdk_sock *sock, char *saddr, int slen, uint16_t *sport,
+ char *caddr, int clen, uint16_t *cport)
+{
+ return sock->net_impl->getaddr(sock, saddr, slen, sport, caddr, clen, cport);
+}
+
+void
+spdk_sock_get_default_opts(struct spdk_sock_opts *opts)
+{
+ assert(opts);
+
+ if (SPDK_SOCK_OPTS_FIELD_OK(opts, priority)) {
+ opts->priority = SPDK_SOCK_DEFAULT_PRIORITY;
+ }
+}
+
+/*
+ * opts The opts allocated in the current library.
+ * opts_user The opts passed by the caller.
+ * */
+static void
+sock_init_opts(struct spdk_sock_opts *opts, struct spdk_sock_opts *opts_user)
+{
+ assert(opts);
+ assert(opts_user);
+
+ opts->opts_size = sizeof(*opts);
+ spdk_sock_get_default_opts(opts);
+
+ /* reset the size according to the user */
+ opts->opts_size = opts_user->opts_size;
+ if (SPDK_SOCK_OPTS_FIELD_OK(opts, priority)) {
+ opts->priority = opts_user->priority;
+ }
+}
+
+struct spdk_sock *
+spdk_sock_connect(const char *ip, int port, char *impl_name)
+{
+ struct spdk_sock_opts opts;
+
+ opts.opts_size = sizeof(opts);
+ spdk_sock_get_default_opts(&opts);
+ return spdk_sock_connect_ext(ip, port, impl_name, &opts);
+}
+
+struct spdk_sock *
+spdk_sock_connect_ext(const char *ip, int port, char *impl_name, struct spdk_sock_opts *opts)
+{
+ struct spdk_net_impl *impl = NULL;
+ struct spdk_sock *sock;
+ struct spdk_sock_opts opts_local;
+
+ if (opts == NULL) {
+ SPDK_ERRLOG("the opts should not be NULL pointer\n");
+ return NULL;
+ }
+
+ STAILQ_FOREACH_FROM(impl, &g_net_impls, link) {
+ if (impl_name && strncmp(impl_name, impl->name, strlen(impl->name) + 1)) {
+ continue;
+ }
+
+ sock_init_opts(&opts_local, opts);
+ sock = impl->connect(ip, port, &opts_local);
+ if (sock != NULL) {
+ /* Copy the contents, both the two structures are the same ABI version */
+ memcpy(&sock->opts, &opts_local, sizeof(sock->opts));
+ sock->net_impl = impl;
+ TAILQ_INIT(&sock->queued_reqs);
+ TAILQ_INIT(&sock->pending_reqs);
+ return sock;
+ }
+ }
+
+ return NULL;
+}
+
+struct spdk_sock *
+spdk_sock_listen(const char *ip, int port, char *impl_name)
+{
+ struct spdk_sock_opts opts;
+
+ opts.opts_size = sizeof(opts);
+ spdk_sock_get_default_opts(&opts);
+ return spdk_sock_listen_ext(ip, port, impl_name, &opts);
+}
+
+struct spdk_sock *
+spdk_sock_listen_ext(const char *ip, int port, char *impl_name, struct spdk_sock_opts *opts)
+{
+ struct spdk_net_impl *impl = NULL;
+ struct spdk_sock *sock;
+ struct spdk_sock_opts opts_local;
+
+ if (opts == NULL) {
+ SPDK_ERRLOG("the opts should not be NULL pointer\n");
+ return NULL;
+ }
+
+ STAILQ_FOREACH_FROM(impl, &g_net_impls, link) {
+ if (impl_name && strncmp(impl_name, impl->name, strlen(impl->name) + 1)) {
+ continue;
+ }
+
+ sock_init_opts(&opts_local, opts);
+ sock = impl->listen(ip, port, &opts_local);
+ if (sock != NULL) {
+ /* Copy the contents, both the two structures are the same ABI version */
+ memcpy(&sock->opts, &opts_local, sizeof(sock->opts));
+ sock->net_impl = impl;
+ /* Don't need to initialize the request queues for listen
+ * sockets. */
+ return sock;
+ }
+ }
+
+ return NULL;
+}
+
+struct spdk_sock *
+spdk_sock_accept(struct spdk_sock *sock)
+{
+ struct spdk_sock *new_sock;
+
+ new_sock = sock->net_impl->accept(sock);
+ if (new_sock != NULL) {
+ /* Inherit the opts from the "accept sock" */
+ new_sock->opts = sock->opts;
+ memcpy(&new_sock->opts, &sock->opts, sizeof(new_sock->opts));
+ new_sock->net_impl = sock->net_impl;
+ TAILQ_INIT(&new_sock->queued_reqs);
+ TAILQ_INIT(&new_sock->pending_reqs);
+ }
+
+ return new_sock;
+}
+
+int
+spdk_sock_close(struct spdk_sock **_sock)
+{
+ struct spdk_sock *sock = *_sock;
+ int rc;
+
+ if (sock == NULL) {
+ errno = EBADF;
+ return -1;
+ }
+
+ if (sock->cb_fn != NULL) {
+ /* This sock is still part of a sock_group. */
+ errno = EBUSY;
+ return -1;
+ }
+
+ sock->flags.closed = true;
+
+ if (sock->cb_cnt > 0) {
+ /* Let the callback unwind before destroying the socket */
+ return 0;
+ }
+
+ spdk_sock_abort_requests(sock);
+
+ rc = sock->net_impl->close(sock);
+ if (rc == 0) {
+ *_sock = NULL;
+ }
+
+ return rc;
+}
+
+ssize_t
+spdk_sock_recv(struct spdk_sock *sock, void *buf, size_t len)
+{
+ if (sock == NULL) {
+ errno = EBADF;
+ return -1;
+ }
+
+ if (sock->flags.closed) {
+ errno = EBADF;
+ return -1;
+ }
+
+ return sock->net_impl->recv(sock, buf, len);
+}
+
+ssize_t
+spdk_sock_readv(struct spdk_sock *sock, struct iovec *iov, int iovcnt)
+{
+ if (sock == NULL) {
+ errno = EBADF;
+ return -1;
+ }
+
+ if (sock->flags.closed) {
+ errno = EBADF;
+ return -1;
+ }
+
+ return sock->net_impl->readv(sock, iov, iovcnt);
+}
+
+ssize_t
+spdk_sock_writev(struct spdk_sock *sock, struct iovec *iov, int iovcnt)
+{
+ if (sock == NULL) {
+ errno = EBADF;
+ return -1;
+ }
+
+ if (sock->flags.closed) {
+ errno = EBADF;
+ return -1;
+ }
+
+ return sock->net_impl->writev(sock, iov, iovcnt);
+}
+
+void
+spdk_sock_writev_async(struct spdk_sock *sock, struct spdk_sock_request *req)
+{
+ assert(req->cb_fn != NULL);
+
+ if (sock == NULL) {
+ req->cb_fn(req->cb_arg, -EBADF);
+ return;
+ }
+
+ if (sock->flags.closed) {
+ req->cb_fn(req->cb_arg, -EBADF);
+ return;
+ }
+
+ sock->net_impl->writev_async(sock, req);
+}
+
+int
+spdk_sock_flush(struct spdk_sock *sock)
+{
+ if (sock == NULL) {
+ return -EBADF;
+ }
+
+ if (sock->flags.closed) {
+ return -EBADF;
+ }
+
+ return sock->net_impl->flush(sock);
+}
+
+int
+spdk_sock_set_recvlowat(struct spdk_sock *sock, int nbytes)
+{
+ return sock->net_impl->set_recvlowat(sock, nbytes);
+}
+
+int
+spdk_sock_set_recvbuf(struct spdk_sock *sock, int sz)
+{
+ return sock->net_impl->set_recvbuf(sock, sz);
+}
+
+int
+spdk_sock_set_sendbuf(struct spdk_sock *sock, int sz)
+{
+ return sock->net_impl->set_sendbuf(sock, sz);
+}
+
+bool
+spdk_sock_is_ipv6(struct spdk_sock *sock)
+{
+ return sock->net_impl->is_ipv6(sock);
+}
+
+bool
+spdk_sock_is_ipv4(struct spdk_sock *sock)
+{
+ return sock->net_impl->is_ipv4(sock);
+}
+
+bool
+spdk_sock_is_connected(struct spdk_sock *sock)
+{
+ return sock->net_impl->is_connected(sock);
+}
+
+struct spdk_sock_group *
+spdk_sock_group_create(void *ctx)
+{
+ struct spdk_net_impl *impl = NULL;
+ struct spdk_sock_group *group;
+ struct spdk_sock_group_impl *group_impl;
+
+ group = calloc(1, sizeof(*group));
+ if (group == NULL) {
+ return NULL;
+ }
+
+ STAILQ_INIT(&group->group_impls);
+
+ STAILQ_FOREACH_FROM(impl, &g_net_impls, link) {
+ group_impl = impl->group_impl_create();
+ if (group_impl != NULL) {
+ STAILQ_INSERT_TAIL(&group->group_impls, group_impl, link);
+ TAILQ_INIT(&group_impl->socks);
+ group_impl->num_removed_socks = 0;
+ group_impl->net_impl = impl;
+ }
+ }
+
+ group->ctx = ctx;
+ return group;
+}
+
+void *
+spdk_sock_group_get_ctx(struct spdk_sock_group *group)
+{
+ if (group == NULL) {
+ return NULL;
+ }
+
+ return group->ctx;
+}
+
+int
+spdk_sock_group_add_sock(struct spdk_sock_group *group, struct spdk_sock *sock,
+ spdk_sock_cb cb_fn, void *cb_arg)
+{
+ struct spdk_sock_group_impl *group_impl = NULL;
+ int rc, placement_id = 0;
+
+ if (cb_fn == NULL) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ if (sock->group_impl != NULL) {
+ /*
+ * This sock is already part of a sock_group. Currently we don't
+ * support this.
+ */
+ errno = EBUSY;
+ return -1;
+ }
+
+ rc = sock->net_impl->get_placement_id(sock, &placement_id);
+ if (!rc && (placement_id != 0)) {
+ rc = sock_map_insert(placement_id, group);
+ if (rc < 0) {
+ return -1;
+ }
+ }
+
+ STAILQ_FOREACH_FROM(group_impl, &group->group_impls, link) {
+ if (sock->net_impl == group_impl->net_impl) {
+ break;
+ }
+ }
+
+ if (group_impl == NULL) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ rc = group_impl->net_impl->group_impl_add_sock(group_impl, sock);
+ if (rc == 0) {
+ TAILQ_INSERT_TAIL(&group_impl->socks, sock, link);
+ sock->group_impl = group_impl;
+ sock->cb_fn = cb_fn;
+ sock->cb_arg = cb_arg;
+ }
+
+ return rc;
+}
+
+int
+spdk_sock_group_remove_sock(struct spdk_sock_group *group, struct spdk_sock *sock)
+{
+ struct spdk_sock_group_impl *group_impl = NULL;
+ int rc, placement_id = 0;
+
+ STAILQ_FOREACH_FROM(group_impl, &group->group_impls, link) {
+ if (sock->net_impl == group_impl->net_impl) {
+ break;
+ }
+ }
+
+ if (group_impl == NULL) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ assert(group_impl == sock->group_impl);
+
+ rc = sock->net_impl->get_placement_id(sock, &placement_id);
+ if (!rc && (placement_id != 0)) {
+ sock_map_release(placement_id);
+ }
+
+ rc = group_impl->net_impl->group_impl_remove_sock(group_impl, sock);
+ if (rc == 0) {
+ TAILQ_REMOVE(&group_impl->socks, sock, link);
+ assert(group_impl->num_removed_socks < MAX_EVENTS_PER_POLL);
+ group_impl->removed_socks[group_impl->num_removed_socks] = (uintptr_t)sock;
+ group_impl->num_removed_socks++;
+ sock->group_impl = NULL;
+ sock->cb_fn = NULL;
+ sock->cb_arg = NULL;
+ }
+
+ return rc;
+}
+
+int
+spdk_sock_group_poll(struct spdk_sock_group *group)
+{
+ return spdk_sock_group_poll_count(group, MAX_EVENTS_PER_POLL);
+}
+
+static int
+sock_group_impl_poll_count(struct spdk_sock_group_impl *group_impl,
+ struct spdk_sock_group *group,
+ int max_events)
+{
+ struct spdk_sock *socks[MAX_EVENTS_PER_POLL];
+ int num_events, i;
+
+ if (TAILQ_EMPTY(&group_impl->socks)) {
+ return 0;
+ }
+
+ /* The number of removed sockets should be reset for each call to poll. */
+ group_impl->num_removed_socks = 0;
+
+ num_events = group_impl->net_impl->group_impl_poll(group_impl, max_events, socks);
+ if (num_events == -1) {
+ return -1;
+ }
+
+ for (i = 0; i < num_events; i++) {
+ struct spdk_sock *sock = socks[i];
+ int j;
+ bool valid = true;
+ for (j = 0; j < group_impl->num_removed_socks; j++) {
+ if ((uintptr_t)sock == group_impl->removed_socks[j]) {
+ valid = false;
+ break;
+ }
+ }
+
+ if (valid) {
+ assert(sock->cb_fn != NULL);
+ sock->cb_fn(sock->cb_arg, group, sock);
+ }
+ }
+
+ return num_events;
+}
+
+int
+spdk_sock_group_poll_count(struct spdk_sock_group *group, int max_events)
+{
+ struct spdk_sock_group_impl *group_impl = NULL;
+ int rc, num_events = 0;
+
+ if (max_events < 1) {
+ errno = -EINVAL;
+ return -1;
+ }
+
+ /*
+ * Only poll for up to 32 events at a time - if more events are pending,
+ * the next call to this function will reap them.
+ */
+ if (max_events > MAX_EVENTS_PER_POLL) {
+ max_events = MAX_EVENTS_PER_POLL;
+ }
+
+ STAILQ_FOREACH_FROM(group_impl, &group->group_impls, link) {
+ rc = sock_group_impl_poll_count(group_impl, group, max_events);
+ if (rc < 0) {
+ num_events = -1;
+ SPDK_ERRLOG("group_impl_poll_count for net(%s) failed\n",
+ group_impl->net_impl->name);
+ } else if (num_events >= 0) {
+ num_events += rc;
+ }
+ }
+
+ return num_events;
+}
+
+int
+spdk_sock_group_close(struct spdk_sock_group **group)
+{
+ struct spdk_sock_group_impl *group_impl = NULL, *tmp;
+ int rc;
+
+ if (*group == NULL) {
+ errno = EBADF;
+ return -1;
+ }
+
+ STAILQ_FOREACH_SAFE(group_impl, &(*group)->group_impls, link, tmp) {
+ if (!TAILQ_EMPTY(&group_impl->socks)) {
+ errno = EBUSY;
+ return -1;
+ }
+ }
+
+ STAILQ_FOREACH_SAFE(group_impl, &(*group)->group_impls, link, tmp) {
+ rc = group_impl->net_impl->group_impl_close(group_impl);
+ if (rc != 0) {
+ SPDK_ERRLOG("group_impl_close for net(%s) failed\n",
+ group_impl->net_impl->name);
+ }
+ }
+
+ sock_remove_sock_group_from_map_table(*group);
+ free(*group);
+ *group = NULL;
+
+ return 0;
+}
+
+static inline struct spdk_net_impl *
+sock_get_impl_by_name(const char *impl_name)
+{
+ struct spdk_net_impl *impl;
+
+ assert(impl_name != NULL);
+ STAILQ_FOREACH(impl, &g_net_impls, link) {
+ if (0 == strcmp(impl_name, impl->name)) {
+ return impl;
+ }
+ }
+
+ return NULL;
+}
+
+int
+spdk_sock_impl_get_opts(const char *impl_name, struct spdk_sock_impl_opts *opts, size_t *len)
+{
+ struct spdk_net_impl *impl;
+
+ if (!impl_name || !opts || !len) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ impl = sock_get_impl_by_name(impl_name);
+ if (!impl) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ if (!impl->get_opts) {
+ errno = ENOTSUP;
+ return -1;
+ }
+
+ return impl->get_opts(opts, len);
+}
+
+int
+spdk_sock_impl_set_opts(const char *impl_name, const struct spdk_sock_impl_opts *opts, size_t len)
+{
+ struct spdk_net_impl *impl;
+
+ if (!impl_name || !opts) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ impl = sock_get_impl_by_name(impl_name);
+ if (!impl) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ if (!impl->set_opts) {
+ errno = ENOTSUP;
+ return -1;
+ }
+
+ return impl->set_opts(opts, len);
+}
+
+void
+spdk_sock_write_config_json(struct spdk_json_write_ctx *w)
+{
+ struct spdk_net_impl *impl;
+ struct spdk_sock_impl_opts opts;
+ size_t len;
+
+ assert(w != NULL);
+
+ spdk_json_write_array_begin(w);
+
+ STAILQ_FOREACH(impl, &g_net_impls, link) {
+ if (!impl->get_opts) {
+ continue;
+ }
+
+ len = sizeof(opts);
+ if (impl->get_opts(&opts, &len) == 0) {
+ spdk_json_write_object_begin(w);
+ spdk_json_write_named_string(w, "method", "sock_impl_set_options");
+ spdk_json_write_named_object_begin(w, "params");
+ spdk_json_write_named_string(w, "impl_name", impl->name);
+ spdk_json_write_named_uint32(w, "recv_buf_size", opts.recv_buf_size);
+ spdk_json_write_named_uint32(w, "send_buf_size", opts.send_buf_size);
+ spdk_json_write_named_bool(w, "enable_recv_pipe", opts.enable_recv_pipe);
+ spdk_json_write_named_bool(w, "enable_zerocopy_send", opts.enable_zerocopy_send);
+ spdk_json_write_object_end(w);
+ spdk_json_write_object_end(w);
+ } else {
+ SPDK_ERRLOG("Failed to get socket options for socket implementation %s\n", impl->name);
+ }
+ }
+
+ spdk_json_write_array_end(w);
+}
+
+void
+spdk_net_impl_register(struct spdk_net_impl *impl, int priority)
+{
+ struct spdk_net_impl *cur, *prev;
+
+ impl->priority = priority;
+ prev = NULL;
+ STAILQ_FOREACH(cur, &g_net_impls, link) {
+ if (impl->priority > cur->priority) {
+ break;
+ }
+ prev = cur;
+ }
+
+ if (prev) {
+ STAILQ_INSERT_AFTER(&g_net_impls, prev, impl, link);
+ } else {
+ STAILQ_INSERT_HEAD(&g_net_impls, impl, link);
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-15 19:37:37 +0000