/*
* This function handles the CONNECT_REQUEST event on a listening
* endpoint. It is passed the cma_id for the _new_ connection. The context in
* this cma_id is inherited from the listening cma_id and is the svc_xprt
* structure for the listening endpoint.
*
* This function creates a new xprt for the new connection and enqueues it on
* the accept queue for the listent xprt. When the listen thread is kicked, it
* will call the recvfrom method on the listen xprt which will accept the new
* connection.
*/
static void handle_connect_req(struct rdma_cm_id *new_cma_id, size_t client_ird)
{
struct svcxprt_rdma *listen_xprt = new_cma_id->context;
struct svcxprt_rdma *newxprt;
struct sockaddr *sa;
/* Create a new transport */
newxprt = rdma_create_xprt(listen_xprt->sc_xprt.xpt_server, 0);
if (!newxprt) {
dprintk("svcrdma: failed to create new transport\n");
return;
}
newxprt->sc_cm_id = new_cma_id;
new_cma_id->context = newxprt;
dprintk("svcrdma: Creating newxprt=%p, cm_id=%p, listenxprt=%p\n",
newxprt, newxprt->sc_cm_id, listen_xprt);
/* Save client advertised inbound read limit for use later in accept. */
newxprt->sc_ord = client_ird;
/* Set the local and remote addresses in the transport */
sa = (struct sockaddr *)&newxprt->sc_cm_id->route.addr.dst_addr;
svc_xprt_set_remote(&newxprt->sc_xprt, sa, svc_addr_len(sa));
sa = (struct sockaddr *)&newxprt->sc_cm_id->route.addr.src_addr;
svc_xprt_set_local(&newxprt->sc_xprt, sa, svc_addr_len(sa));
/*
* Enqueue the new transport on the accept queue of the listening
* transport
*/
spin_lock_bh(&listen_xprt->sc_lock);
list_add_tail(&newxprt->sc_accept_q, &listen_xprt->sc_accept_q);
spin_unlock_bh(&listen_xprt->sc_lock);
/*
* Can't use svc_xprt_received here because we are not on a
* rqstp thread
*/
set_bit(XPT_CONN, &listen_xprt->sc_xprt.xpt_flags);
svc_xprt_enqueue(&listen_xprt->sc_xprt);
}
/*
* This function handles the CONNECT_REQUEST event on a listening
* endpoint. It is passed the cma_id for the _new_ connection. The context in
* this cma_id is inherited from the listening cma_id and is the svc_xprt
* structure for the listening endpoint.
*
* This function creates a new xprt for the new connection and enqueues it on
* the accept queue for the listent xprt. When the listen thread is kicked, it
* will call the recvfrom method on the listen xprt which will accept the new
* connection.
*/
static void handle_connect_req(struct rdma_cm_id *new_cma_id,
struct rdma_conn_param *param)
{
struct svcxprt_rdma *listen_xprt = new_cma_id->context;
struct svcxprt_rdma *newxprt;
struct sockaddr *sa;
/* Create a new transport */
newxprt = svc_rdma_create_xprt(listen_xprt->sc_xprt.xpt_server,
listen_xprt->sc_xprt.xpt_net);
if (!newxprt)
return;
newxprt->sc_cm_id = new_cma_id;
new_cma_id->context = newxprt;
svc_rdma_parse_connect_private(newxprt, param);
/* Save client advertised inbound read limit for use later in accept. */
newxprt->sc_ord = param->initiator_depth;
/* Set the local and remote addresses in the transport */
sa = (struct sockaddr *)&newxprt->sc_cm_id->route.addr.dst_addr;
svc_xprt_set_remote(&newxprt->sc_xprt, sa, svc_addr_len(sa));
sa = (struct sockaddr *)&newxprt->sc_cm_id->route.addr.src_addr;
svc_xprt_set_local(&newxprt->sc_xprt, sa, svc_addr_len(sa));
/*
* Enqueue the new transport on the accept queue of the listening
* transport
*/
spin_lock_bh(&listen_xprt->sc_lock);
list_add_tail(&newxprt->sc_accept_q, &listen_xprt->sc_accept_q);
spin_unlock_bh(&listen_xprt->sc_lock);
set_bit(XPT_CONN, &listen_xprt->sc_xprt.xpt_flags);
svc_xprt_enqueue(&listen_xprt->sc_xprt);
}
