static int
spdk_nvmf_initialize_pools(void)
{
SPDK_NOTICELOG("\n*** NVMf Pool Creation ***\n");
g_num_requests = MAX_SUBSYSTEMS * g_nvmf_tgt.MaxConnectionsPerSession * g_nvmf_tgt.MaxQueueDepth;
/* create NVMe backend request pool */
request_mempool = rte_mempool_create("NVMe_Pool",
g_num_requests,
spdk_nvme_request_size(),
128, 0,
NULL, NULL, NULL, NULL,
SOCKET_ID_ANY, 0);
if (!request_mempool) {
SPDK_ERRLOG("create NVMe request pool failed\n");
return -1;
}
SPDK_TRACELOG(SPDK_TRACE_DEBUG, "NVMe request_mempool %p, size %" PRIu64 " bytes\n",
request_mempool,
(uint64_t)g_num_requests * spdk_nvme_request_size());
return 0;
}
int
spdk_nvmf_transport_fini(void)
{
size_t i;
int count = 0;
for (i = 0; i != NUM_TRANSPORTS; i++) {
if (g_transports[i]->transport_fini() < 0) {
SPDK_NOTICELOG("%s transport fini failed\n", g_transports[i]->name);
} else {
count++;
}
}
return count;
}
int
spdk_nvmf_transport_init(void)
{
size_t i;
int count = 0;
for (i = 0; i != NUM_TRANSPORTS; i++) {
if (g_transports[i]->transport_init(g_nvmf_tgt.max_queue_depth, g_nvmf_tgt.max_io_size,
g_nvmf_tgt.in_capsule_data_size) < 0) {
SPDK_NOTICELOG("%s transport init failed\n", g_transports[i]->name);
} else {
count++;
}
}
return count;
}
/**
\brief Create an NVMf fabric connection from the given parameters and schedule it
on a reactor thread.
\code
# identify reactor where the new connections work item will be scheduled
reactor = nvmf_allocate_reactor()
schedule fabric connection work item on reactor
\endcode
*/
int
spdk_nvmf_startup_conn(struct spdk_nvmf_conn *conn)
{
int lcore;
struct spdk_nvmf_conn *admin_conn;
uint64_t nvmf_session_core = spdk_app_get_core_mask();
/*
* if starting IO connection then determine core
* allocated to admin queue to request core mask.
* Can not assume nvmf session yet created at time
* of fabric connection setup. Rely on fabric
* function to locate matching controller session.
*/
if (conn->type == CONN_TYPE_IOQ && conn->cntlid != 0) {
admin_conn = spdk_find_nvmf_conn_by_cntlid(conn->cntlid);
if (admin_conn != NULL) {
SPDK_TRACELOG(SPDK_TRACE_DEBUG, "Located admin conn session core %d\n",
admin_conn->poller.lcore);
nvmf_session_core = 1ULL << admin_conn->poller.lcore;
}
}
lcore = nvmf_allocate_reactor(nvmf_session_core);
if (lcore < 0) {
SPDK_ERRLOG("Unable to find core to launch connection.\n");
goto err0;
}
conn->state = CONN_STATE_RUNNING;
SPDK_NOTICELOG("Launching nvmf connection[qid=%d] on core: %d\n",
conn->qid, lcore);
conn->poller.fn = spdk_nvmf_conn_do_work;
conn->poller.arg = conn;
rte_atomic32_inc(&g_num_connections[lcore]);
spdk_poller_register(&conn->poller, lcore, NULL);
return 0;
err0:
free_conn(conn);
return -1;
}
