d3cd2df1f2
Other structures needed by prototypes in t4_tom.h are explicitly declared in this file, so adding the prototype here seems most consistent with existing code.
2495 lines
61 KiB
C
2495 lines
61 KiB
C
/*
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* Copyright (c) 2009-2013, 2016 Chelsio, Inc. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_inet.h"
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#ifdef TCP_OFFLOAD
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#include <sys/types.h>
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#include <sys/malloc.h>
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#include <sys/socket.h>
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#include <sys/socketvar.h>
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#include <sys/sockio.h>
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#include <sys/taskqueue.h>
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#include <netinet/in.h>
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#include <net/route.h>
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#include <netinet/in_systm.h>
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#include <netinet/in_pcb.h>
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#include <netinet/ip.h>
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#include <netinet/in_fib.h>
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#include <netinet/ip_var.h>
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#include <netinet/tcp_var.h>
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#include <netinet/tcp.h>
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#include <netinet/tcpip.h>
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#include <netinet/toecore.h>
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struct sge_iq;
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struct rss_header;
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struct cpl_set_tcb_rpl;
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#include <linux/types.h>
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#include "offload.h"
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#include "tom/t4_tom.h"
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#define TOEPCB(so) ((struct toepcb *)(so_sototcpcb((so))->t_toe))
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#include "iw_cxgbe.h"
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#include <linux/module.h>
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#include <linux/workqueue.h>
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#include <linux/notifier.h>
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#include <linux/inetdevice.h>
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#include <linux/if_vlan.h>
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#include <net/netevent.h>
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static spinlock_t req_lock;
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static TAILQ_HEAD(c4iw_ep_list, c4iw_ep_common) req_list;
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static struct work_struct c4iw_task;
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static struct workqueue_struct *c4iw_taskq;
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static LIST_HEAD(timeout_list);
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static spinlock_t timeout_lock;
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static void process_req(struct work_struct *ctx);
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static void start_ep_timer(struct c4iw_ep *ep);
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static int stop_ep_timer(struct c4iw_ep *ep);
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static int set_tcpinfo(struct c4iw_ep *ep);
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static enum c4iw_ep_state state_read(struct c4iw_ep_common *epc);
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static void __state_set(struct c4iw_ep_common *epc, enum c4iw_ep_state tostate);
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static void state_set(struct c4iw_ep_common *epc, enum c4iw_ep_state tostate);
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static void *alloc_ep(int size, gfp_t flags);
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void __free_ep(struct c4iw_ep_common *epc);
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static int find_route(__be32 local_ip, __be32 peer_ip, __be16 local_port,
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__be16 peer_port, u8 tos, struct nhop4_extended *pnh4);
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static int close_socket(struct c4iw_ep_common *epc, int close);
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static int shutdown_socket(struct c4iw_ep_common *epc);
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static void abort_socket(struct c4iw_ep *ep);
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static void send_mpa_req(struct c4iw_ep *ep);
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static int send_mpa_reject(struct c4iw_ep *ep, const void *pdata, u8 plen);
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static int send_mpa_reply(struct c4iw_ep *ep, const void *pdata, u8 plen);
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static void close_complete_upcall(struct c4iw_ep *ep, int status);
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static int send_abort(struct c4iw_ep *ep);
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static void peer_close_upcall(struct c4iw_ep *ep);
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static void peer_abort_upcall(struct c4iw_ep *ep);
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static void connect_reply_upcall(struct c4iw_ep *ep, int status);
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static int connect_request_upcall(struct c4iw_ep *ep);
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static void established_upcall(struct c4iw_ep *ep);
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static int process_mpa_reply(struct c4iw_ep *ep);
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static int process_mpa_request(struct c4iw_ep *ep);
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static void process_peer_close(struct c4iw_ep *ep);
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static void process_conn_error(struct c4iw_ep *ep);
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static void process_close_complete(struct c4iw_ep *ep);
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static void ep_timeout(unsigned long arg);
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static void init_sock(struct c4iw_ep_common *epc);
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static void process_data(struct c4iw_ep *ep);
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static void process_connected(struct c4iw_ep *ep);
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static int c4iw_so_upcall(struct socket *so, void *arg, int waitflag);
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static void process_socket_event(struct c4iw_ep *ep);
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static void release_ep_resources(struct c4iw_ep *ep);
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#define START_EP_TIMER(ep) \
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do { \
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CTR3(KTR_IW_CXGBE, "start_ep_timer (%s:%d) ep %p", \
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__func__, __LINE__, (ep)); \
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start_ep_timer(ep); \
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} while (0)
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#define STOP_EP_TIMER(ep) \
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({ \
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CTR3(KTR_IW_CXGBE, "stop_ep_timer (%s:%d) ep %p", \
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__func__, __LINE__, (ep)); \
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stop_ep_timer(ep); \
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})
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#ifdef KTR
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static char *states[] = {
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"idle",
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"listen",
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"connecting",
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"mpa_wait_req",
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"mpa_req_sent",
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"mpa_req_rcvd",
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"mpa_rep_sent",
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"fpdu_mode",
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"aborting",
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"closing",
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"moribund",
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"dead",
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NULL,
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};
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#endif
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static void deref_cm_id(struct c4iw_ep_common *epc)
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{
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epc->cm_id->rem_ref(epc->cm_id);
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epc->cm_id = NULL;
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set_bit(CM_ID_DEREFED, &epc->history);
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}
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static void ref_cm_id(struct c4iw_ep_common *epc)
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{
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set_bit(CM_ID_REFED, &epc->history);
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epc->cm_id->add_ref(epc->cm_id);
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}
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static void deref_qp(struct c4iw_ep *ep)
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{
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c4iw_qp_rem_ref(&ep->com.qp->ibqp);
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clear_bit(QP_REFERENCED, &ep->com.flags);
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set_bit(QP_DEREFED, &ep->com.history);
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}
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static void ref_qp(struct c4iw_ep *ep)
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{
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set_bit(QP_REFERENCED, &ep->com.flags);
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set_bit(QP_REFED, &ep->com.history);
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c4iw_qp_add_ref(&ep->com.qp->ibqp);
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}
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static void
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process_req(struct work_struct *ctx)
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{
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struct c4iw_ep_common *epc;
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spin_lock(&req_lock);
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while (!TAILQ_EMPTY(&req_list)) {
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epc = TAILQ_FIRST(&req_list);
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TAILQ_REMOVE(&req_list, epc, entry);
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epc->entry.tqe_prev = NULL;
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spin_unlock(&req_lock);
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if (epc->so)
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process_socket_event((struct c4iw_ep *)epc);
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c4iw_put_ep(epc);
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spin_lock(&req_lock);
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}
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spin_unlock(&req_lock);
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}
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/*
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* XXX: doesn't belong here in the iWARP driver.
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* XXX: assumes that the connection was offloaded by cxgbe/t4_tom if TF_TOE is
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* set. Is this a valid assumption for active open?
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*/
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static int
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set_tcpinfo(struct c4iw_ep *ep)
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{
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struct socket *so = ep->com.so;
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struct inpcb *inp = sotoinpcb(so);
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struct tcpcb *tp;
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struct toepcb *toep;
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int rc = 0;
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INP_WLOCK(inp);
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tp = intotcpcb(inp);
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if ((tp->t_flags & TF_TOE) == 0) {
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rc = EINVAL;
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log(LOG_ERR, "%s: connection not offloaded (so %p, ep %p)\n",
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__func__, so, ep);
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goto done;
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}
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toep = TOEPCB(so);
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ep->hwtid = toep->tid;
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ep->snd_seq = tp->snd_nxt;
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ep->rcv_seq = tp->rcv_nxt;
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ep->emss = max(tp->t_maxseg, 128);
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done:
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INP_WUNLOCK(inp);
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return (rc);
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}
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static int
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find_route(__be32 local_ip, __be32 peer_ip, __be16 local_port,
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__be16 peer_port, u8 tos, struct nhop4_extended *pnh4)
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{
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struct in_addr addr;
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int err;
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CTR5(KTR_IW_CXGBE, "%s:frtB %x, %x, %d, %d", __func__, local_ip,
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peer_ip, ntohs(local_port), ntohs(peer_port));
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addr.s_addr = peer_ip;
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err = fib4_lookup_nh_ext(RT_DEFAULT_FIB, addr, NHR_REF, 0, pnh4);
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CTR2(KTR_IW_CXGBE, "%s:frtE %d", __func__, err);
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return err;
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}
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static int
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close_socket(struct c4iw_ep_common *epc, int close)
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{
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struct socket *so = epc->so;
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int rc;
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CTR4(KTR_IW_CXGBE, "%s: so %p, ep %p, state %s", __func__, epc, so,
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states[epc->state]);
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SOCK_LOCK(so);
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soupcall_clear(so, SO_RCV);
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SOCK_UNLOCK(so);
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if (close)
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rc = soclose(so);
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else
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rc = soshutdown(so, SHUT_WR | SHUT_RD);
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epc->so = NULL;
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return (rc);
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}
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static int
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shutdown_socket(struct c4iw_ep_common *epc)
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{
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CTR4(KTR_IW_CXGBE, "%s: so %p, ep %p, state %s", __func__, epc->so, epc,
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states[epc->state]);
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return (soshutdown(epc->so, SHUT_WR));
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}
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static void
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abort_socket(struct c4iw_ep *ep)
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{
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struct sockopt sopt;
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int rc;
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struct linger l;
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CTR4(KTR_IW_CXGBE, "%s ep %p so %p state %s", __func__, ep, ep->com.so,
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states[ep->com.state]);
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l.l_onoff = 1;
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l.l_linger = 0;
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/* linger_time of 0 forces RST to be sent */
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sopt.sopt_dir = SOPT_SET;
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sopt.sopt_level = SOL_SOCKET;
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sopt.sopt_name = SO_LINGER;
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sopt.sopt_val = (caddr_t)&l;
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sopt.sopt_valsize = sizeof l;
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sopt.sopt_td = NULL;
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rc = sosetopt(ep->com.so, &sopt);
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if (rc) {
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log(LOG_ERR, "%s: can't set linger to 0, no RST! err %d\n",
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__func__, rc);
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}
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}
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static void
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process_peer_close(struct c4iw_ep *ep)
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{
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struct c4iw_qp_attributes attrs;
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int disconnect = 1;
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int release = 0;
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CTR4(KTR_IW_CXGBE, "%s:ppcB ep %p so %p state %s", __func__, ep,
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ep->com.so, states[ep->com.state]);
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mutex_lock(&ep->com.mutex);
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switch (ep->com.state) {
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case MPA_REQ_WAIT:
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CTR2(KTR_IW_CXGBE, "%s:ppc1 %p MPA_REQ_WAIT CLOSING",
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__func__, ep);
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__state_set(&ep->com, CLOSING);
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break;
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case MPA_REQ_SENT:
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CTR2(KTR_IW_CXGBE, "%s:ppc2 %p MPA_REQ_SENT CLOSING",
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__func__, ep);
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__state_set(&ep->com, DEAD);
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connect_reply_upcall(ep, -ECONNABORTED);
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disconnect = 0;
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STOP_EP_TIMER(ep);
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close_socket(&ep->com, 0);
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deref_cm_id(&ep->com);
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release = 1;
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break;
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case MPA_REQ_RCVD:
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/*
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* We're gonna mark this puppy DEAD, but keep
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* the reference on it until the ULP accepts or
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* rejects the CR.
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*/
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CTR2(KTR_IW_CXGBE, "%s:ppc3 %p MPA_REQ_RCVD CLOSING",
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__func__, ep);
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__state_set(&ep->com, CLOSING);
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c4iw_get_ep(&ep->com);
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break;
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case MPA_REP_SENT:
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CTR2(KTR_IW_CXGBE, "%s:ppc4 %p MPA_REP_SENT CLOSING",
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__func__, ep);
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__state_set(&ep->com, CLOSING);
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break;
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case FPDU_MODE:
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CTR2(KTR_IW_CXGBE, "%s:ppc5 %p FPDU_MODE CLOSING",
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__func__, ep);
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START_EP_TIMER(ep);
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__state_set(&ep->com, CLOSING);
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attrs.next_state = C4IW_QP_STATE_CLOSING;
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c4iw_modify_qp(ep->com.dev, ep->com.qp,
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C4IW_QP_ATTR_NEXT_STATE, &attrs, 1);
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peer_close_upcall(ep);
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break;
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case ABORTING:
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CTR2(KTR_IW_CXGBE, "%s:ppc6 %p ABORTING (disconn)",
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__func__, ep);
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disconnect = 0;
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break;
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|
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case CLOSING:
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CTR2(KTR_IW_CXGBE, "%s:ppc7 %p CLOSING MORIBUND",
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__func__, ep);
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__state_set(&ep->com, MORIBUND);
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disconnect = 0;
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break;
|
|
|
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case MORIBUND:
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CTR2(KTR_IW_CXGBE, "%s:ppc8 %p MORIBUND DEAD", __func__,
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ep);
|
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STOP_EP_TIMER(ep);
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if (ep->com.cm_id && ep->com.qp) {
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attrs.next_state = C4IW_QP_STATE_IDLE;
|
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c4iw_modify_qp(ep->com.qp->rhp, ep->com.qp,
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C4IW_QP_ATTR_NEXT_STATE, &attrs, 1);
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}
|
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close_socket(&ep->com, 0);
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close_complete_upcall(ep, 0);
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__state_set(&ep->com, DEAD);
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release = 1;
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disconnect = 0;
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break;
|
|
|
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case DEAD:
|
|
CTR2(KTR_IW_CXGBE, "%s:ppc9 %p DEAD (disconn)",
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__func__, ep);
|
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disconnect = 0;
|
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break;
|
|
|
|
default:
|
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panic("%s: ep %p state %d", __func__, ep,
|
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ep->com.state);
|
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break;
|
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}
|
|
|
|
mutex_unlock(&ep->com.mutex);
|
|
|
|
if (disconnect) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:ppca %p", __func__, ep);
|
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c4iw_ep_disconnect(ep, 0, M_NOWAIT);
|
|
}
|
|
if (release) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:ppcb %p", __func__, ep);
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c4iw_put_ep(&ep->com);
|
|
}
|
|
CTR2(KTR_IW_CXGBE, "%s:ppcE %p", __func__, ep);
|
|
return;
|
|
}
|
|
|
|
static void
|
|
process_conn_error(struct c4iw_ep *ep)
|
|
{
|
|
struct c4iw_qp_attributes attrs;
|
|
int ret;
|
|
int state;
|
|
|
|
state = state_read(&ep->com);
|
|
CTR5(KTR_IW_CXGBE, "%s:pceB ep %p so %p so->so_error %u state %s",
|
|
__func__, ep, ep->com.so, ep->com.so->so_error,
|
|
states[ep->com.state]);
|
|
|
|
switch (state) {
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|
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case MPA_REQ_WAIT:
|
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STOP_EP_TIMER(ep);
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break;
|
|
|
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case MPA_REQ_SENT:
|
|
STOP_EP_TIMER(ep);
|
|
connect_reply_upcall(ep, -ECONNRESET);
|
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break;
|
|
|
|
case MPA_REP_SENT:
|
|
ep->com.rpl_err = ECONNRESET;
|
|
CTR1(KTR_IW_CXGBE, "waking up ep %p", ep);
|
|
break;
|
|
|
|
case MPA_REQ_RCVD:
|
|
|
|
/*
|
|
* We're gonna mark this puppy DEAD, but keep
|
|
* the reference on it until the ULP accepts or
|
|
* rejects the CR.
|
|
*/
|
|
c4iw_get_ep(&ep->com);
|
|
break;
|
|
|
|
case MORIBUND:
|
|
case CLOSING:
|
|
STOP_EP_TIMER(ep);
|
|
/*FALLTHROUGH*/
|
|
case FPDU_MODE:
|
|
|
|
if (ep->com.cm_id && ep->com.qp) {
|
|
|
|
attrs.next_state = C4IW_QP_STATE_ERROR;
|
|
ret = c4iw_modify_qp(ep->com.qp->rhp,
|
|
ep->com.qp, C4IW_QP_ATTR_NEXT_STATE,
|
|
&attrs, 1);
|
|
if (ret)
|
|
log(LOG_ERR,
|
|
"%s - qp <- error failed!\n",
|
|
__func__);
|
|
}
|
|
peer_abort_upcall(ep);
|
|
break;
|
|
|
|
case ABORTING:
|
|
break;
|
|
|
|
case DEAD:
|
|
CTR2(KTR_IW_CXGBE, "%s so_error %d IN DEAD STATE!!!!",
|
|
__func__, ep->com.so->so_error);
|
|
return;
|
|
|
|
default:
|
|
panic("%s: ep %p state %d", __func__, ep, state);
|
|
break;
|
|
}
|
|
|
|
if (state != ABORTING) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pce1 %p", __func__, ep);
|
|
close_socket(&ep->com, 0);
|
|
state_set(&ep->com, DEAD);
|
|
c4iw_put_ep(&ep->com);
|
|
}
|
|
CTR2(KTR_IW_CXGBE, "%s:pceE %p", __func__, ep);
|
|
return;
|
|
}
|
|
|
|
static void
|
|
process_close_complete(struct c4iw_ep *ep)
|
|
{
|
|
struct c4iw_qp_attributes attrs;
|
|
int release = 0;
|
|
|
|
CTR4(KTR_IW_CXGBE, "%s:pccB ep %p so %p state %s", __func__, ep,
|
|
ep->com.so, states[ep->com.state]);
|
|
|
|
/* The cm_id may be null if we failed to connect */
|
|
mutex_lock(&ep->com.mutex);
|
|
set_bit(CLOSE_CON_RPL, &ep->com.history);
|
|
|
|
switch (ep->com.state) {
|
|
|
|
case CLOSING:
|
|
CTR2(KTR_IW_CXGBE, "%s:pcc1 %p CLOSING MORIBUND",
|
|
__func__, ep);
|
|
__state_set(&ep->com, MORIBUND);
|
|
break;
|
|
|
|
case MORIBUND:
|
|
CTR2(KTR_IW_CXGBE, "%s:pcc1 %p MORIBUND DEAD", __func__,
|
|
ep);
|
|
STOP_EP_TIMER(ep);
|
|
|
|
if ((ep->com.cm_id) && (ep->com.qp)) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pcc2 %p QP_STATE_IDLE",
|
|
__func__, ep);
|
|
attrs.next_state = C4IW_QP_STATE_IDLE;
|
|
c4iw_modify_qp(ep->com.dev,
|
|
ep->com.qp,
|
|
C4IW_QP_ATTR_NEXT_STATE,
|
|
&attrs, 1);
|
|
}
|
|
|
|
if (ep->parent_ep) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pcc3 %p", __func__, ep);
|
|
close_socket(&ep->com, 1);
|
|
}
|
|
else {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pcc4 %p", __func__, ep);
|
|
close_socket(&ep->com, 0);
|
|
}
|
|
close_complete_upcall(ep, 0);
|
|
__state_set(&ep->com, DEAD);
|
|
release = 1;
|
|
break;
|
|
|
|
case ABORTING:
|
|
CTR2(KTR_IW_CXGBE, "%s:pcc5 %p ABORTING", __func__, ep);
|
|
break;
|
|
|
|
case DEAD:
|
|
default:
|
|
CTR2(KTR_IW_CXGBE, "%s:pcc6 %p DEAD", __func__, ep);
|
|
panic("%s:pcc6 %p DEAD", __func__, ep);
|
|
break;
|
|
}
|
|
mutex_unlock(&ep->com.mutex);
|
|
|
|
if (release) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pcc7 %p", __func__, ep);
|
|
c4iw_put_ep(&ep->com);
|
|
}
|
|
CTR2(KTR_IW_CXGBE, "%s:pccE %p", __func__, ep);
|
|
return;
|
|
}
|
|
|
|
static void
|
|
init_sock(struct c4iw_ep_common *epc)
|
|
{
|
|
int rc;
|
|
struct sockopt sopt;
|
|
struct socket *so = epc->so;
|
|
int on = 1;
|
|
|
|
SOCK_LOCK(so);
|
|
soupcall_set(so, SO_RCV, c4iw_so_upcall, epc);
|
|
so->so_state |= SS_NBIO;
|
|
SOCK_UNLOCK(so);
|
|
sopt.sopt_dir = SOPT_SET;
|
|
sopt.sopt_level = IPPROTO_TCP;
|
|
sopt.sopt_name = TCP_NODELAY;
|
|
sopt.sopt_val = (caddr_t)&on;
|
|
sopt.sopt_valsize = sizeof on;
|
|
sopt.sopt_td = NULL;
|
|
rc = sosetopt(so, &sopt);
|
|
if (rc) {
|
|
log(LOG_ERR, "%s: can't set TCP_NODELAY on so %p (%d)\n",
|
|
__func__, so, rc);
|
|
}
|
|
}
|
|
|
|
static void
|
|
process_data(struct c4iw_ep *ep)
|
|
{
|
|
struct sockaddr_in *local, *remote;
|
|
int disconnect = 0;
|
|
|
|
CTR5(KTR_IW_CXGBE, "%s: so %p, ep %p, state %s, sbused %d", __func__,
|
|
ep->com.so, ep, states[ep->com.state], sbused(&ep->com.so->so_rcv));
|
|
|
|
switch (state_read(&ep->com)) {
|
|
case MPA_REQ_SENT:
|
|
disconnect = process_mpa_reply(ep);
|
|
break;
|
|
case MPA_REQ_WAIT:
|
|
in_getsockaddr(ep->com.so, (struct sockaddr **)&local);
|
|
in_getpeeraddr(ep->com.so, (struct sockaddr **)&remote);
|
|
ep->com.local_addr = *local;
|
|
ep->com.remote_addr = *remote;
|
|
free(local, M_SONAME);
|
|
free(remote, M_SONAME);
|
|
disconnect = process_mpa_request(ep);
|
|
break;
|
|
default:
|
|
if (sbused(&ep->com.so->so_rcv))
|
|
log(LOG_ERR, "%s: Unexpected streaming data. ep %p, "
|
|
"state %d, so %p, so_state 0x%x, sbused %u\n",
|
|
__func__, ep, state_read(&ep->com), ep->com.so,
|
|
ep->com.so->so_state, sbused(&ep->com.so->so_rcv));
|
|
break;
|
|
}
|
|
if (disconnect)
|
|
c4iw_ep_disconnect(ep, disconnect == 2, GFP_KERNEL);
|
|
|
|
}
|
|
|
|
static void
|
|
process_connected(struct c4iw_ep *ep)
|
|
{
|
|
|
|
if ((ep->com.so->so_state & SS_ISCONNECTED) && !ep->com.so->so_error)
|
|
send_mpa_req(ep);
|
|
else {
|
|
connect_reply_upcall(ep, -ep->com.so->so_error);
|
|
close_socket(&ep->com, 0);
|
|
state_set(&ep->com, DEAD);
|
|
c4iw_put_ep(&ep->com);
|
|
}
|
|
}
|
|
|
|
void
|
|
process_newconn(struct iw_cm_id *parent_cm_id, struct socket *child_so)
|
|
{
|
|
struct c4iw_ep *child_ep;
|
|
struct sockaddr_in *local;
|
|
struct sockaddr_in *remote;
|
|
struct c4iw_ep *parent_ep = parent_cm_id->provider_data;
|
|
|
|
if (!child_so) {
|
|
CTR4(KTR_IW_CXGBE,
|
|
"%s: parent so %p, parent ep %p, child so %p, invalid so",
|
|
__func__, parent_ep->com.so, parent_ep, child_so);
|
|
log(LOG_ERR, "%s: invalid child socket\n", __func__);
|
|
return;
|
|
}
|
|
child_ep = alloc_ep(sizeof(*child_ep), M_NOWAIT);
|
|
if (!child_ep) {
|
|
CTR3(KTR_IW_CXGBE, "%s: parent so %p, parent ep %p, ENOMEM",
|
|
__func__, parent_ep->com.so, parent_ep);
|
|
log(LOG_ERR, "%s: failed to allocate ep entry\n", __func__);
|
|
return;
|
|
}
|
|
SOCKBUF_LOCK(&child_so->so_rcv);
|
|
soupcall_set(child_so, SO_RCV, c4iw_so_upcall, child_ep);
|
|
SOCKBUF_UNLOCK(&child_so->so_rcv);
|
|
|
|
CTR5(KTR_IW_CXGBE,
|
|
"%s: parent so %p, parent ep %p, child so %p, child ep %p",
|
|
__func__, parent_ep->com.so, parent_ep, child_so, child_ep);
|
|
|
|
in_getsockaddr(child_so, (struct sockaddr **)&local);
|
|
in_getpeeraddr(child_so, (struct sockaddr **)&remote);
|
|
|
|
child_ep->com.local_addr = *local;
|
|
child_ep->com.remote_addr = *remote;
|
|
child_ep->com.dev = parent_ep->com.dev;
|
|
child_ep->com.so = child_so;
|
|
child_ep->com.cm_id = NULL;
|
|
child_ep->com.thread = parent_ep->com.thread;
|
|
child_ep->parent_ep = parent_ep;
|
|
|
|
free(local, M_SONAME);
|
|
free(remote, M_SONAME);
|
|
|
|
c4iw_get_ep(&parent_ep->com);
|
|
init_timer(&child_ep->timer);
|
|
state_set(&child_ep->com, MPA_REQ_WAIT);
|
|
START_EP_TIMER(child_ep);
|
|
|
|
/* maybe the request has already been queued up on the socket... */
|
|
process_mpa_request(child_ep);
|
|
return;
|
|
}
|
|
|
|
static int
|
|
c4iw_so_upcall(struct socket *so, void *arg, int waitflag)
|
|
{
|
|
struct c4iw_ep *ep = arg;
|
|
|
|
spin_lock(&req_lock);
|
|
|
|
CTR6(KTR_IW_CXGBE,
|
|
"%s: so %p, so_state 0x%x, ep %p, ep_state %s, tqe_prev %p",
|
|
__func__, so, so->so_state, ep, states[ep->com.state],
|
|
ep->com.entry.tqe_prev);
|
|
|
|
if (ep && ep->com.so && !ep->com.entry.tqe_prev) {
|
|
KASSERT(ep->com.so == so, ("%s: XXX review.", __func__));
|
|
c4iw_get_ep(&ep->com);
|
|
TAILQ_INSERT_TAIL(&req_list, &ep->com, entry);
|
|
queue_work(c4iw_taskq, &c4iw_task);
|
|
}
|
|
|
|
spin_unlock(&req_lock);
|
|
return (SU_OK);
|
|
}
|
|
|
|
static void
|
|
process_socket_event(struct c4iw_ep *ep)
|
|
{
|
|
int state = state_read(&ep->com);
|
|
struct socket *so = ep->com.so;
|
|
|
|
CTR6(KTR_IW_CXGBE, "process_socket_event: so %p, so_state 0x%x, "
|
|
"so_err %d, sb_state 0x%x, ep %p, ep_state %s", so, so->so_state,
|
|
so->so_error, so->so_rcv.sb_state, ep, states[state]);
|
|
|
|
if (state == CONNECTING) {
|
|
process_connected(ep);
|
|
return;
|
|
}
|
|
|
|
if (state == LISTEN) {
|
|
/* socket listening events are handled at IWCM */
|
|
CTR3(KTR_IW_CXGBE, "%s Invalid ep state:%u, ep:%p", __func__,
|
|
ep->com.state, ep);
|
|
BUG();
|
|
return;
|
|
}
|
|
|
|
/* connection error */
|
|
if (so->so_error) {
|
|
process_conn_error(ep);
|
|
return;
|
|
}
|
|
|
|
/* peer close */
|
|
if ((so->so_rcv.sb_state & SBS_CANTRCVMORE) && state < CLOSING) {
|
|
process_peer_close(ep);
|
|
return;
|
|
}
|
|
|
|
/* close complete */
|
|
if (so->so_state & SS_ISDISCONNECTED) {
|
|
process_close_complete(ep);
|
|
return;
|
|
}
|
|
|
|
/* rx data */
|
|
process_data(ep);
|
|
}
|
|
|
|
SYSCTL_NODE(_hw, OID_AUTO, iw_cxgbe, CTLFLAG_RD, 0, "iw_cxgbe driver parameters");
|
|
|
|
int db_delay_usecs = 1;
|
|
SYSCTL_INT(_hw_iw_cxgbe, OID_AUTO, db_delay_usecs, CTLFLAG_RWTUN, &db_delay_usecs, 0,
|
|
"Usecs to delay awaiting db fifo to drain");
|
|
|
|
static int dack_mode = 0;
|
|
SYSCTL_INT(_hw_iw_cxgbe, OID_AUTO, dack_mode, CTLFLAG_RWTUN, &dack_mode, 0,
|
|
"Delayed ack mode (default = 0)");
|
|
|
|
int c4iw_max_read_depth = 8;
|
|
SYSCTL_INT(_hw_iw_cxgbe, OID_AUTO, c4iw_max_read_depth, CTLFLAG_RWTUN, &c4iw_max_read_depth, 0,
|
|
"Per-connection max ORD/IRD (default = 8)");
|
|
|
|
static int enable_tcp_timestamps;
|
|
SYSCTL_INT(_hw_iw_cxgbe, OID_AUTO, enable_tcp_timestamps, CTLFLAG_RWTUN, &enable_tcp_timestamps, 0,
|
|
"Enable tcp timestamps (default = 0)");
|
|
|
|
static int enable_tcp_sack;
|
|
SYSCTL_INT(_hw_iw_cxgbe, OID_AUTO, enable_tcp_sack, CTLFLAG_RWTUN, &enable_tcp_sack, 0,
|
|
"Enable tcp SACK (default = 0)");
|
|
|
|
static int enable_tcp_window_scaling = 1;
|
|
SYSCTL_INT(_hw_iw_cxgbe, OID_AUTO, enable_tcp_window_scaling, CTLFLAG_RWTUN, &enable_tcp_window_scaling, 0,
|
|
"Enable tcp window scaling (default = 1)");
|
|
|
|
int c4iw_debug = 1;
|
|
SYSCTL_INT(_hw_iw_cxgbe, OID_AUTO, c4iw_debug, CTLFLAG_RWTUN, &c4iw_debug, 0,
|
|
"Enable debug logging (default = 0)");
|
|
|
|
static int peer2peer = 1;
|
|
SYSCTL_INT(_hw_iw_cxgbe, OID_AUTO, peer2peer, CTLFLAG_RWTUN, &peer2peer, 0,
|
|
"Support peer2peer ULPs (default = 1)");
|
|
|
|
static int p2p_type = FW_RI_INIT_P2PTYPE_READ_REQ;
|
|
SYSCTL_INT(_hw_iw_cxgbe, OID_AUTO, p2p_type, CTLFLAG_RWTUN, &p2p_type, 0,
|
|
"RDMAP opcode to use for the RTR message: 1 = RDMA_READ 0 = RDMA_WRITE (default 1)");
|
|
|
|
static int ep_timeout_secs = 60;
|
|
SYSCTL_INT(_hw_iw_cxgbe, OID_AUTO, ep_timeout_secs, CTLFLAG_RWTUN, &ep_timeout_secs, 0,
|
|
"CM Endpoint operation timeout in seconds (default = 60)");
|
|
|
|
static int mpa_rev = 1;
|
|
SYSCTL_INT(_hw_iw_cxgbe, OID_AUTO, mpa_rev, CTLFLAG_RWTUN, &mpa_rev, 0,
|
|
"MPA Revision, 0 supports amso1100, 1 is RFC5044 spec compliant, 2 is IETF MPA Peer Connect Draft compliant (default = 1)");
|
|
|
|
static int markers_enabled;
|
|
SYSCTL_INT(_hw_iw_cxgbe, OID_AUTO, markers_enabled, CTLFLAG_RWTUN, &markers_enabled, 0,
|
|
"Enable MPA MARKERS (default(0) = disabled)");
|
|
|
|
static int crc_enabled = 1;
|
|
SYSCTL_INT(_hw_iw_cxgbe, OID_AUTO, crc_enabled, CTLFLAG_RWTUN, &crc_enabled, 0,
|
|
"Enable MPA CRC (default(1) = enabled)");
|
|
|
|
static int rcv_win = 256 * 1024;
|
|
SYSCTL_INT(_hw_iw_cxgbe, OID_AUTO, rcv_win, CTLFLAG_RWTUN, &rcv_win, 0,
|
|
"TCP receive window in bytes (default = 256KB)");
|
|
|
|
static int snd_win = 128 * 1024;
|
|
SYSCTL_INT(_hw_iw_cxgbe, OID_AUTO, snd_win, CTLFLAG_RWTUN, &snd_win, 0,
|
|
"TCP send window in bytes (default = 128KB)");
|
|
|
|
int db_fc_threshold = 2000;
|
|
SYSCTL_INT(_hw_iw_cxgbe, OID_AUTO, db_fc_threshold, CTLFLAG_RWTUN, &db_fc_threshold, 0,
|
|
"QP count/threshold that triggers automatic");
|
|
|
|
static void
|
|
start_ep_timer(struct c4iw_ep *ep)
|
|
{
|
|
|
|
if (timer_pending(&ep->timer)) {
|
|
CTR2(KTR_IW_CXGBE, "%s: ep %p, already started", __func__, ep);
|
|
printk(KERN_ERR "%s timer already started! ep %p\n", __func__,
|
|
ep);
|
|
return;
|
|
}
|
|
clear_bit(TIMEOUT, &ep->com.flags);
|
|
c4iw_get_ep(&ep->com);
|
|
ep->timer.expires = jiffies + ep_timeout_secs * HZ;
|
|
ep->timer.data = (unsigned long)ep;
|
|
ep->timer.function = ep_timeout;
|
|
add_timer(&ep->timer);
|
|
}
|
|
|
|
static int
|
|
stop_ep_timer(struct c4iw_ep *ep)
|
|
{
|
|
|
|
del_timer_sync(&ep->timer);
|
|
if (!test_and_set_bit(TIMEOUT, &ep->com.flags)) {
|
|
c4iw_put_ep(&ep->com);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static enum
|
|
c4iw_ep_state state_read(struct c4iw_ep_common *epc)
|
|
{
|
|
enum c4iw_ep_state state;
|
|
|
|
mutex_lock(&epc->mutex);
|
|
state = epc->state;
|
|
mutex_unlock(&epc->mutex);
|
|
|
|
return (state);
|
|
}
|
|
|
|
static void
|
|
__state_set(struct c4iw_ep_common *epc, enum c4iw_ep_state new)
|
|
{
|
|
|
|
epc->state = new;
|
|
}
|
|
|
|
static void
|
|
state_set(struct c4iw_ep_common *epc, enum c4iw_ep_state new)
|
|
{
|
|
|
|
mutex_lock(&epc->mutex);
|
|
__state_set(epc, new);
|
|
mutex_unlock(&epc->mutex);
|
|
}
|
|
|
|
static void *
|
|
alloc_ep(int size, gfp_t gfp)
|
|
{
|
|
struct c4iw_ep_common *epc;
|
|
|
|
epc = kzalloc(size, gfp);
|
|
if (epc == NULL)
|
|
return (NULL);
|
|
|
|
kref_init(&epc->kref);
|
|
mutex_init(&epc->mutex);
|
|
c4iw_init_wr_wait(&epc->wr_wait);
|
|
|
|
return (epc);
|
|
}
|
|
|
|
void
|
|
__free_ep(struct c4iw_ep_common *epc)
|
|
{
|
|
CTR2(KTR_IW_CXGBE, "%s:feB %p", __func__, epc);
|
|
KASSERT(!epc->so, ("%s warning ep->so %p \n", __func__, epc->so));
|
|
KASSERT(!epc->entry.tqe_prev, ("%s epc %p still on req list!\n", __func__, epc));
|
|
free(epc, M_DEVBUF);
|
|
CTR2(KTR_IW_CXGBE, "%s:feE %p", __func__, epc);
|
|
}
|
|
|
|
void _c4iw_free_ep(struct kref *kref)
|
|
{
|
|
struct c4iw_ep *ep;
|
|
struct c4iw_ep_common *epc;
|
|
|
|
ep = container_of(kref, struct c4iw_ep, com.kref);
|
|
epc = &ep->com;
|
|
KASSERT(!epc->entry.tqe_prev, ("%s epc %p still on req list",
|
|
__func__, epc));
|
|
if (test_bit(QP_REFERENCED, &ep->com.flags))
|
|
deref_qp(ep);
|
|
kfree(ep);
|
|
}
|
|
|
|
static void release_ep_resources(struct c4iw_ep *ep)
|
|
{
|
|
CTR2(KTR_IW_CXGBE, "%s:rerB %p", __func__, ep);
|
|
set_bit(RELEASE_RESOURCES, &ep->com.flags);
|
|
c4iw_put_ep(&ep->com);
|
|
CTR2(KTR_IW_CXGBE, "%s:rerE %p", __func__, ep);
|
|
}
|
|
|
|
static void
|
|
send_mpa_req(struct c4iw_ep *ep)
|
|
{
|
|
int mpalen;
|
|
struct mpa_message *mpa;
|
|
struct mpa_v2_conn_params mpa_v2_params;
|
|
struct mbuf *m;
|
|
char mpa_rev_to_use = mpa_rev;
|
|
int err;
|
|
|
|
if (ep->retry_with_mpa_v1)
|
|
mpa_rev_to_use = 1;
|
|
mpalen = sizeof(*mpa) + ep->plen;
|
|
if (mpa_rev_to_use == 2)
|
|
mpalen += sizeof(struct mpa_v2_conn_params);
|
|
|
|
mpa = malloc(mpalen, M_CXGBE, M_NOWAIT);
|
|
if (mpa == NULL) {
|
|
failed:
|
|
connect_reply_upcall(ep, -ENOMEM);
|
|
return;
|
|
}
|
|
|
|
memset(mpa, 0, mpalen);
|
|
memcpy(mpa->key, MPA_KEY_REQ, sizeof(mpa->key));
|
|
mpa->flags = (crc_enabled ? MPA_CRC : 0) |
|
|
(markers_enabled ? MPA_MARKERS : 0) |
|
|
(mpa_rev_to_use == 2 ? MPA_ENHANCED_RDMA_CONN : 0);
|
|
mpa->private_data_size = htons(ep->plen);
|
|
mpa->revision = mpa_rev_to_use;
|
|
|
|
if (mpa_rev_to_use == 1) {
|
|
ep->tried_with_mpa_v1 = 1;
|
|
ep->retry_with_mpa_v1 = 0;
|
|
}
|
|
|
|
if (mpa_rev_to_use == 2) {
|
|
mpa->private_data_size +=
|
|
htons(sizeof(struct mpa_v2_conn_params));
|
|
mpa_v2_params.ird = htons((u16)ep->ird);
|
|
mpa_v2_params.ord = htons((u16)ep->ord);
|
|
|
|
if (peer2peer) {
|
|
mpa_v2_params.ird |= htons(MPA_V2_PEER2PEER_MODEL);
|
|
|
|
if (p2p_type == FW_RI_INIT_P2PTYPE_RDMA_WRITE) {
|
|
mpa_v2_params.ord |=
|
|
htons(MPA_V2_RDMA_WRITE_RTR);
|
|
} else if (p2p_type == FW_RI_INIT_P2PTYPE_READ_REQ) {
|
|
mpa_v2_params.ord |=
|
|
htons(MPA_V2_RDMA_READ_RTR);
|
|
}
|
|
}
|
|
memcpy(mpa->private_data, &mpa_v2_params,
|
|
sizeof(struct mpa_v2_conn_params));
|
|
|
|
if (ep->plen) {
|
|
|
|
memcpy(mpa->private_data +
|
|
sizeof(struct mpa_v2_conn_params),
|
|
ep->mpa_pkt + sizeof(*mpa), ep->plen);
|
|
}
|
|
} else {
|
|
|
|
if (ep->plen)
|
|
memcpy(mpa->private_data,
|
|
ep->mpa_pkt + sizeof(*mpa), ep->plen);
|
|
CTR2(KTR_IW_CXGBE, "%s:smr7 %p", __func__, ep);
|
|
}
|
|
|
|
m = m_getm(NULL, mpalen, M_NOWAIT, MT_DATA);
|
|
if (m == NULL) {
|
|
free(mpa, M_CXGBE);
|
|
goto failed;
|
|
}
|
|
m_copyback(m, 0, mpalen, (void *)mpa);
|
|
free(mpa, M_CXGBE);
|
|
|
|
err = sosend(ep->com.so, NULL, NULL, m, NULL, MSG_DONTWAIT,
|
|
ep->com.thread);
|
|
if (err)
|
|
goto failed;
|
|
|
|
START_EP_TIMER(ep);
|
|
state_set(&ep->com, MPA_REQ_SENT);
|
|
ep->mpa_attr.initiator = 1;
|
|
}
|
|
|
|
static int send_mpa_reject(struct c4iw_ep *ep, const void *pdata, u8 plen)
|
|
{
|
|
int mpalen ;
|
|
struct mpa_message *mpa;
|
|
struct mpa_v2_conn_params mpa_v2_params;
|
|
struct mbuf *m;
|
|
int err;
|
|
|
|
CTR4(KTR_IW_CXGBE, "%s:smrejB %p %u %d", __func__, ep, ep->hwtid,
|
|
ep->plen);
|
|
|
|
mpalen = sizeof(*mpa) + plen;
|
|
|
|
if (ep->mpa_attr.version == 2 && ep->mpa_attr.enhanced_rdma_conn) {
|
|
|
|
mpalen += sizeof(struct mpa_v2_conn_params);
|
|
CTR4(KTR_IW_CXGBE, "%s:smrej1 %p %u %d", __func__, ep,
|
|
ep->mpa_attr.version, mpalen);
|
|
}
|
|
|
|
mpa = malloc(mpalen, M_CXGBE, M_NOWAIT);
|
|
if (mpa == NULL)
|
|
return (-ENOMEM);
|
|
|
|
memset(mpa, 0, mpalen);
|
|
memcpy(mpa->key, MPA_KEY_REP, sizeof(mpa->key));
|
|
mpa->flags = MPA_REJECT;
|
|
mpa->revision = mpa_rev;
|
|
mpa->private_data_size = htons(plen);
|
|
|
|
if (ep->mpa_attr.version == 2 && ep->mpa_attr.enhanced_rdma_conn) {
|
|
|
|
mpa->flags |= MPA_ENHANCED_RDMA_CONN;
|
|
mpa->private_data_size +=
|
|
htons(sizeof(struct mpa_v2_conn_params));
|
|
mpa_v2_params.ird = htons(((u16)ep->ird) |
|
|
(peer2peer ? MPA_V2_PEER2PEER_MODEL :
|
|
0));
|
|
mpa_v2_params.ord = htons(((u16)ep->ord) | (peer2peer ?
|
|
(p2p_type ==
|
|
FW_RI_INIT_P2PTYPE_RDMA_WRITE ?
|
|
MPA_V2_RDMA_WRITE_RTR : p2p_type ==
|
|
FW_RI_INIT_P2PTYPE_READ_REQ ?
|
|
MPA_V2_RDMA_READ_RTR : 0) : 0));
|
|
memcpy(mpa->private_data, &mpa_v2_params,
|
|
sizeof(struct mpa_v2_conn_params));
|
|
|
|
if (ep->plen)
|
|
memcpy(mpa->private_data +
|
|
sizeof(struct mpa_v2_conn_params), pdata, plen);
|
|
CTR5(KTR_IW_CXGBE, "%s:smrej3 %p %d %d %d", __func__, ep,
|
|
mpa_v2_params.ird, mpa_v2_params.ord, ep->plen);
|
|
} else
|
|
if (plen)
|
|
memcpy(mpa->private_data, pdata, plen);
|
|
|
|
m = m_getm(NULL, mpalen, M_NOWAIT, MT_DATA);
|
|
if (m == NULL) {
|
|
free(mpa, M_CXGBE);
|
|
return (-ENOMEM);
|
|
}
|
|
m_copyback(m, 0, mpalen, (void *)mpa);
|
|
free(mpa, M_CXGBE);
|
|
|
|
err = -sosend(ep->com.so, NULL, NULL, m, NULL, MSG_DONTWAIT, ep->com.thread);
|
|
if (!err)
|
|
ep->snd_seq += mpalen;
|
|
CTR4(KTR_IW_CXGBE, "%s:smrejE %p %u %d", __func__, ep, ep->hwtid, err);
|
|
return err;
|
|
}
|
|
|
|
static int send_mpa_reply(struct c4iw_ep *ep, const void *pdata, u8 plen)
|
|
{
|
|
int mpalen;
|
|
struct mpa_message *mpa;
|
|
struct mbuf *m;
|
|
struct mpa_v2_conn_params mpa_v2_params;
|
|
int err;
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:smrepB %p", __func__, ep);
|
|
|
|
mpalen = sizeof(*mpa) + plen;
|
|
|
|
if (ep->mpa_attr.version == 2 && ep->mpa_attr.enhanced_rdma_conn) {
|
|
|
|
CTR3(KTR_IW_CXGBE, "%s:smrep1 %p %d", __func__, ep,
|
|
ep->mpa_attr.version);
|
|
mpalen += sizeof(struct mpa_v2_conn_params);
|
|
}
|
|
|
|
mpa = malloc(mpalen, M_CXGBE, M_NOWAIT);
|
|
if (mpa == NULL)
|
|
return (-ENOMEM);
|
|
|
|
memset(mpa, 0, sizeof(*mpa));
|
|
memcpy(mpa->key, MPA_KEY_REP, sizeof(mpa->key));
|
|
mpa->flags = (ep->mpa_attr.crc_enabled ? MPA_CRC : 0) |
|
|
(markers_enabled ? MPA_MARKERS : 0);
|
|
mpa->revision = ep->mpa_attr.version;
|
|
mpa->private_data_size = htons(plen);
|
|
|
|
if (ep->mpa_attr.version == 2 && ep->mpa_attr.enhanced_rdma_conn) {
|
|
|
|
mpa->flags |= MPA_ENHANCED_RDMA_CONN;
|
|
mpa->private_data_size +=
|
|
htons(sizeof(struct mpa_v2_conn_params));
|
|
mpa_v2_params.ird = htons((u16)ep->ird);
|
|
mpa_v2_params.ord = htons((u16)ep->ord);
|
|
CTR5(KTR_IW_CXGBE, "%s:smrep3 %p %d %d %d", __func__, ep,
|
|
ep->mpa_attr.version, mpa_v2_params.ird, mpa_v2_params.ord);
|
|
|
|
if (peer2peer && (ep->mpa_attr.p2p_type !=
|
|
FW_RI_INIT_P2PTYPE_DISABLED)) {
|
|
|
|
mpa_v2_params.ird |= htons(MPA_V2_PEER2PEER_MODEL);
|
|
|
|
if (p2p_type == FW_RI_INIT_P2PTYPE_RDMA_WRITE) {
|
|
|
|
mpa_v2_params.ord |=
|
|
htons(MPA_V2_RDMA_WRITE_RTR);
|
|
CTR5(KTR_IW_CXGBE, "%s:smrep4 %p %d %d %d",
|
|
__func__, ep, p2p_type, mpa_v2_params.ird,
|
|
mpa_v2_params.ord);
|
|
}
|
|
else if (p2p_type == FW_RI_INIT_P2PTYPE_READ_REQ) {
|
|
|
|
mpa_v2_params.ord |=
|
|
htons(MPA_V2_RDMA_READ_RTR);
|
|
CTR5(KTR_IW_CXGBE, "%s:smrep5 %p %d %d %d",
|
|
__func__, ep, p2p_type, mpa_v2_params.ird,
|
|
mpa_v2_params.ord);
|
|
}
|
|
}
|
|
|
|
memcpy(mpa->private_data, &mpa_v2_params,
|
|
sizeof(struct mpa_v2_conn_params));
|
|
|
|
if (ep->plen)
|
|
memcpy(mpa->private_data +
|
|
sizeof(struct mpa_v2_conn_params), pdata, plen);
|
|
} else
|
|
if (plen)
|
|
memcpy(mpa->private_data, pdata, plen);
|
|
|
|
m = m_getm(NULL, mpalen, M_NOWAIT, MT_DATA);
|
|
if (m == NULL) {
|
|
free(mpa, M_CXGBE);
|
|
return (-ENOMEM);
|
|
}
|
|
m_copyback(m, 0, mpalen, (void *)mpa);
|
|
free(mpa, M_CXGBE);
|
|
|
|
|
|
state_set(&ep->com, MPA_REP_SENT);
|
|
ep->snd_seq += mpalen;
|
|
err = -sosend(ep->com.so, NULL, NULL, m, NULL, MSG_DONTWAIT,
|
|
ep->com.thread);
|
|
CTR3(KTR_IW_CXGBE, "%s:smrepE %p %d", __func__, ep, err);
|
|
return err;
|
|
}
|
|
|
|
|
|
|
|
static void close_complete_upcall(struct c4iw_ep *ep, int status)
|
|
{
|
|
struct iw_cm_event event;
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:ccuB %p", __func__, ep);
|
|
memset(&event, 0, sizeof(event));
|
|
event.event = IW_CM_EVENT_CLOSE;
|
|
event.status = status;
|
|
|
|
if (ep->com.cm_id) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:ccu1 %1", __func__, ep);
|
|
ep->com.cm_id->event_handler(ep->com.cm_id, &event);
|
|
deref_cm_id(&ep->com);
|
|
set_bit(CLOSE_UPCALL, &ep->com.history);
|
|
}
|
|
CTR2(KTR_IW_CXGBE, "%s:ccuE %p", __func__, ep);
|
|
}
|
|
|
|
static int send_abort(struct c4iw_ep *ep)
|
|
{
|
|
int err;
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:abB %p", __func__, ep);
|
|
abort_socket(ep);
|
|
err = close_socket(&ep->com, 0);
|
|
set_bit(ABORT_CONN, &ep->com.history);
|
|
CTR2(KTR_IW_CXGBE, "%s:abE %p", __func__, ep);
|
|
return err;
|
|
}
|
|
|
|
static void peer_close_upcall(struct c4iw_ep *ep)
|
|
{
|
|
struct iw_cm_event event;
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pcuB %p", __func__, ep);
|
|
memset(&event, 0, sizeof(event));
|
|
event.event = IW_CM_EVENT_DISCONNECT;
|
|
|
|
if (ep->com.cm_id) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pcu1 %p", __func__, ep);
|
|
ep->com.cm_id->event_handler(ep->com.cm_id, &event);
|
|
set_bit(DISCONN_UPCALL, &ep->com.history);
|
|
}
|
|
CTR2(KTR_IW_CXGBE, "%s:pcuE %p", __func__, ep);
|
|
}
|
|
|
|
static void peer_abort_upcall(struct c4iw_ep *ep)
|
|
{
|
|
struct iw_cm_event event;
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pauB %p", __func__, ep);
|
|
memset(&event, 0, sizeof(event));
|
|
event.event = IW_CM_EVENT_CLOSE;
|
|
event.status = -ECONNRESET;
|
|
|
|
if (ep->com.cm_id) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pau1 %p", __func__, ep);
|
|
ep->com.cm_id->event_handler(ep->com.cm_id, &event);
|
|
deref_cm_id(&ep->com);
|
|
set_bit(ABORT_UPCALL, &ep->com.history);
|
|
}
|
|
CTR2(KTR_IW_CXGBE, "%s:pauE %p", __func__, ep);
|
|
}
|
|
|
|
static void connect_reply_upcall(struct c4iw_ep *ep, int status)
|
|
{
|
|
struct iw_cm_event event;
|
|
|
|
CTR3(KTR_IW_CXGBE, "%s:cruB %p", __func__, ep, status);
|
|
memset(&event, 0, sizeof(event));
|
|
event.event = IW_CM_EVENT_CONNECT_REPLY;
|
|
event.status = (status ==-ECONNABORTED)?-ECONNRESET: status;
|
|
event.local_addr = ep->com.local_addr;
|
|
event.remote_addr = ep->com.remote_addr;
|
|
|
|
if ((status == 0) || (status == -ECONNREFUSED)) {
|
|
|
|
if (!ep->tried_with_mpa_v1) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:cru1 %p", __func__, ep);
|
|
/* this means MPA_v2 is used */
|
|
event.private_data_len = ep->plen -
|
|
sizeof(struct mpa_v2_conn_params);
|
|
event.private_data = ep->mpa_pkt +
|
|
sizeof(struct mpa_message) +
|
|
sizeof(struct mpa_v2_conn_params);
|
|
} else {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:cru2 %p", __func__, ep);
|
|
/* this means MPA_v1 is used */
|
|
event.private_data_len = ep->plen;
|
|
event.private_data = ep->mpa_pkt +
|
|
sizeof(struct mpa_message);
|
|
}
|
|
}
|
|
|
|
if (ep->com.cm_id) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:cru3 %p", __func__, ep);
|
|
set_bit(CONN_RPL_UPCALL, &ep->com.history);
|
|
ep->com.cm_id->event_handler(ep->com.cm_id, &event);
|
|
}
|
|
|
|
if(status == -ECONNABORTED) {
|
|
|
|
CTR3(KTR_IW_CXGBE, "%s:cruE %p %d", __func__, ep, status);
|
|
return;
|
|
}
|
|
|
|
if (status < 0) {
|
|
|
|
CTR3(KTR_IW_CXGBE, "%s:cru4 %p %d", __func__, ep, status);
|
|
deref_cm_id(&ep->com);
|
|
}
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:cruE %p", __func__, ep);
|
|
}
|
|
|
|
static int connect_request_upcall(struct c4iw_ep *ep)
|
|
{
|
|
struct iw_cm_event event;
|
|
int ret;
|
|
|
|
CTR3(KTR_IW_CXGBE, "%s: ep %p, mpa_v1 %d", __func__, ep,
|
|
ep->tried_with_mpa_v1);
|
|
|
|
memset(&event, 0, sizeof(event));
|
|
event.event = IW_CM_EVENT_CONNECT_REQUEST;
|
|
event.local_addr = ep->com.local_addr;
|
|
event.remote_addr = ep->com.remote_addr;
|
|
event.provider_data = ep;
|
|
event.so = ep->com.so;
|
|
|
|
if (!ep->tried_with_mpa_v1) {
|
|
/* this means MPA_v2 is used */
|
|
event.ord = ep->ord;
|
|
event.ird = ep->ird;
|
|
event.private_data_len = ep->plen -
|
|
sizeof(struct mpa_v2_conn_params);
|
|
event.private_data = ep->mpa_pkt + sizeof(struct mpa_message) +
|
|
sizeof(struct mpa_v2_conn_params);
|
|
} else {
|
|
|
|
/* this means MPA_v1 is used. Send max supported */
|
|
event.ord = c4iw_max_read_depth;
|
|
event.ird = c4iw_max_read_depth;
|
|
event.private_data_len = ep->plen;
|
|
event.private_data = ep->mpa_pkt + sizeof(struct mpa_message);
|
|
}
|
|
|
|
c4iw_get_ep(&ep->com);
|
|
ret = ep->parent_ep->com.cm_id->event_handler(ep->parent_ep->com.cm_id,
|
|
&event);
|
|
if(ret)
|
|
c4iw_put_ep(&ep->com);
|
|
|
|
set_bit(CONNREQ_UPCALL, &ep->com.history);
|
|
c4iw_put_ep(&ep->parent_ep->com);
|
|
return ret;
|
|
}
|
|
|
|
static void established_upcall(struct c4iw_ep *ep)
|
|
{
|
|
struct iw_cm_event event;
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:euB %p", __func__, ep);
|
|
memset(&event, 0, sizeof(event));
|
|
event.event = IW_CM_EVENT_ESTABLISHED;
|
|
event.ird = ep->ird;
|
|
event.ord = ep->ord;
|
|
|
|
if (ep->com.cm_id) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:eu1 %p", __func__, ep);
|
|
ep->com.cm_id->event_handler(ep->com.cm_id, &event);
|
|
set_bit(ESTAB_UPCALL, &ep->com.history);
|
|
}
|
|
CTR2(KTR_IW_CXGBE, "%s:euE %p", __func__, ep);
|
|
}
|
|
|
|
|
|
/*
|
|
* process_mpa_reply - process streaming mode MPA reply
|
|
*
|
|
* Returns:
|
|
*
|
|
* 0 upon success indicating a connect request was delivered to the ULP
|
|
* or the mpa request is incomplete but valid so far.
|
|
*
|
|
* 1 if a failure requires the caller to close the connection.
|
|
*
|
|
* 2 if a failure requires the caller to abort the connection.
|
|
*/
|
|
static int process_mpa_reply(struct c4iw_ep *ep)
|
|
{
|
|
struct mpa_message *mpa;
|
|
struct mpa_v2_conn_params *mpa_v2_params;
|
|
u16 plen;
|
|
u16 resp_ird, resp_ord;
|
|
u8 rtr_mismatch = 0, insuff_ird = 0;
|
|
struct c4iw_qp_attributes attrs;
|
|
enum c4iw_qp_attr_mask mask;
|
|
int err;
|
|
struct mbuf *top, *m;
|
|
int flags = MSG_DONTWAIT;
|
|
struct uio uio;
|
|
int disconnect = 0;
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pmrB %p", __func__, ep);
|
|
|
|
/*
|
|
* Stop mpa timer. If it expired, then
|
|
* we ignore the MPA reply. process_timeout()
|
|
* will abort the connection.
|
|
*/
|
|
if (STOP_EP_TIMER(ep))
|
|
return 0;
|
|
|
|
uio.uio_resid = 1000000;
|
|
uio.uio_td = ep->com.thread;
|
|
err = soreceive(ep->com.so, NULL, &uio, &top, NULL, &flags);
|
|
|
|
if (err) {
|
|
|
|
if (err == EWOULDBLOCK) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pmr1 %p", __func__, ep);
|
|
START_EP_TIMER(ep);
|
|
return 0;
|
|
}
|
|
err = -err;
|
|
CTR2(KTR_IW_CXGBE, "%s:pmr2 %p", __func__, ep);
|
|
goto err;
|
|
}
|
|
|
|
if (ep->com.so->so_rcv.sb_mb) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pmr3 %p", __func__, ep);
|
|
printf("%s data after soreceive called! so %p sb_mb %p top %p\n",
|
|
__func__, ep->com.so, ep->com.so->so_rcv.sb_mb, top);
|
|
}
|
|
|
|
m = top;
|
|
|
|
do {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pmr4 %p", __func__, ep);
|
|
/*
|
|
* If we get more than the supported amount of private data
|
|
* then we must fail this connection.
|
|
*/
|
|
if (ep->mpa_pkt_len + m->m_len > sizeof(ep->mpa_pkt)) {
|
|
|
|
CTR3(KTR_IW_CXGBE, "%s:pmr5 %p %d", __func__, ep,
|
|
ep->mpa_pkt_len + m->m_len);
|
|
err = (-EINVAL);
|
|
goto err_stop_timer;
|
|
}
|
|
|
|
/*
|
|
* copy the new data into our accumulation buffer.
|
|
*/
|
|
m_copydata(m, 0, m->m_len, &(ep->mpa_pkt[ep->mpa_pkt_len]));
|
|
ep->mpa_pkt_len += m->m_len;
|
|
if (!m->m_next)
|
|
m = m->m_nextpkt;
|
|
else
|
|
m = m->m_next;
|
|
} while (m);
|
|
|
|
m_freem(top);
|
|
/*
|
|
* if we don't even have the mpa message, then bail.
|
|
*/
|
|
if (ep->mpa_pkt_len < sizeof(*mpa)) {
|
|
return 0;
|
|
}
|
|
mpa = (struct mpa_message *) ep->mpa_pkt;
|
|
|
|
/* Validate MPA header. */
|
|
if (mpa->revision > mpa_rev) {
|
|
|
|
CTR4(KTR_IW_CXGBE, "%s:pmr6 %p %d %d", __func__, ep,
|
|
mpa->revision, mpa_rev);
|
|
printk(KERN_ERR MOD "%s MPA version mismatch. Local = %d, "
|
|
" Received = %d\n", __func__, mpa_rev, mpa->revision);
|
|
err = -EPROTO;
|
|
goto err_stop_timer;
|
|
}
|
|
|
|
if (memcmp(mpa->key, MPA_KEY_REP, sizeof(mpa->key))) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pmr7 %p", __func__, ep);
|
|
err = -EPROTO;
|
|
goto err_stop_timer;
|
|
}
|
|
|
|
plen = ntohs(mpa->private_data_size);
|
|
|
|
/*
|
|
* Fail if there's too much private data.
|
|
*/
|
|
if (plen > MPA_MAX_PRIVATE_DATA) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pmr8 %p", __func__, ep);
|
|
err = -EPROTO;
|
|
goto err_stop_timer;
|
|
}
|
|
|
|
/*
|
|
* If plen does not account for pkt size
|
|
*/
|
|
if (ep->mpa_pkt_len > (sizeof(*mpa) + plen)) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pmr9 %p", __func__, ep);
|
|
STOP_EP_TIMER(ep);
|
|
err = -EPROTO;
|
|
goto err_stop_timer;
|
|
}
|
|
|
|
ep->plen = (u8) plen;
|
|
|
|
/*
|
|
* If we don't have all the pdata yet, then bail.
|
|
* We'll continue process when more data arrives.
|
|
*/
|
|
if (ep->mpa_pkt_len < (sizeof(*mpa) + plen)) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pmra %p", __func__, ep);
|
|
return 0;
|
|
}
|
|
|
|
if (mpa->flags & MPA_REJECT) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pmrb %p", __func__, ep);
|
|
err = -ECONNREFUSED;
|
|
goto err_stop_timer;
|
|
}
|
|
|
|
/*
|
|
* If we get here we have accumulated the entire mpa
|
|
* start reply message including private data. And
|
|
* the MPA header is valid.
|
|
*/
|
|
state_set(&ep->com, FPDU_MODE);
|
|
ep->mpa_attr.crc_enabled = (mpa->flags & MPA_CRC) | crc_enabled ? 1 : 0;
|
|
ep->mpa_attr.recv_marker_enabled = markers_enabled;
|
|
ep->mpa_attr.xmit_marker_enabled = mpa->flags & MPA_MARKERS ? 1 : 0;
|
|
ep->mpa_attr.version = mpa->revision;
|
|
ep->mpa_attr.p2p_type = FW_RI_INIT_P2PTYPE_DISABLED;
|
|
|
|
if (mpa->revision == 2) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pmrc %p", __func__, ep);
|
|
ep->mpa_attr.enhanced_rdma_conn =
|
|
mpa->flags & MPA_ENHANCED_RDMA_CONN ? 1 : 0;
|
|
|
|
if (ep->mpa_attr.enhanced_rdma_conn) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pmrd %p", __func__, ep);
|
|
mpa_v2_params = (struct mpa_v2_conn_params *)
|
|
(ep->mpa_pkt + sizeof(*mpa));
|
|
resp_ird = ntohs(mpa_v2_params->ird) &
|
|
MPA_V2_IRD_ORD_MASK;
|
|
resp_ord = ntohs(mpa_v2_params->ord) &
|
|
MPA_V2_IRD_ORD_MASK;
|
|
|
|
/*
|
|
* This is a double-check. Ideally, below checks are
|
|
* not required since ird/ord stuff has been taken
|
|
* care of in c4iw_accept_cr
|
|
*/
|
|
if ((ep->ird < resp_ord) || (ep->ord > resp_ird)) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pmre %p", __func__, ep);
|
|
err = -ENOMEM;
|
|
ep->ird = resp_ord;
|
|
ep->ord = resp_ird;
|
|
insuff_ird = 1;
|
|
}
|
|
|
|
if (ntohs(mpa_v2_params->ird) &
|
|
MPA_V2_PEER2PEER_MODEL) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pmrf %p", __func__, ep);
|
|
if (ntohs(mpa_v2_params->ord) &
|
|
MPA_V2_RDMA_WRITE_RTR) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pmrg %p", __func__, ep);
|
|
ep->mpa_attr.p2p_type =
|
|
FW_RI_INIT_P2PTYPE_RDMA_WRITE;
|
|
}
|
|
else if (ntohs(mpa_v2_params->ord) &
|
|
MPA_V2_RDMA_READ_RTR) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pmrh %p", __func__, ep);
|
|
ep->mpa_attr.p2p_type =
|
|
FW_RI_INIT_P2PTYPE_READ_REQ;
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pmri %p", __func__, ep);
|
|
|
|
if (mpa->revision == 1) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pmrj %p", __func__, ep);
|
|
|
|
if (peer2peer) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pmrk %p", __func__, ep);
|
|
ep->mpa_attr.p2p_type = p2p_type;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (set_tcpinfo(ep)) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pmrl %p", __func__, ep);
|
|
printf("%s set_tcpinfo error\n", __func__);
|
|
goto err;
|
|
}
|
|
|
|
CTR6(KTR_IW_CXGBE, "%s - crc_enabled = %d, recv_marker_enabled = %d, "
|
|
"xmit_marker_enabled = %d, version = %d p2p_type = %d", __func__,
|
|
ep->mpa_attr.crc_enabled, ep->mpa_attr.recv_marker_enabled,
|
|
ep->mpa_attr.xmit_marker_enabled, ep->mpa_attr.version,
|
|
ep->mpa_attr.p2p_type);
|
|
|
|
/*
|
|
* If responder's RTR does not match with that of initiator, assign
|
|
* FW_RI_INIT_P2PTYPE_DISABLED in mpa attributes so that RTR is not
|
|
* generated when moving QP to RTS state.
|
|
* A TERM message will be sent after QP has moved to RTS state
|
|
*/
|
|
if ((ep->mpa_attr.version == 2) && peer2peer &&
|
|
(ep->mpa_attr.p2p_type != p2p_type)) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pmrm %p", __func__, ep);
|
|
ep->mpa_attr.p2p_type = FW_RI_INIT_P2PTYPE_DISABLED;
|
|
rtr_mismatch = 1;
|
|
}
|
|
|
|
|
|
//ep->ofld_txq = TOEPCB(ep->com.so)->ofld_txq;
|
|
attrs.mpa_attr = ep->mpa_attr;
|
|
attrs.max_ird = ep->ird;
|
|
attrs.max_ord = ep->ord;
|
|
attrs.llp_stream_handle = ep;
|
|
attrs.next_state = C4IW_QP_STATE_RTS;
|
|
|
|
mask = C4IW_QP_ATTR_NEXT_STATE |
|
|
C4IW_QP_ATTR_LLP_STREAM_HANDLE | C4IW_QP_ATTR_MPA_ATTR |
|
|
C4IW_QP_ATTR_MAX_IRD | C4IW_QP_ATTR_MAX_ORD;
|
|
|
|
/* bind QP and TID with INIT_WR */
|
|
err = c4iw_modify_qp(ep->com.qp->rhp, ep->com.qp, mask, &attrs, 1);
|
|
|
|
if (err) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pmrn %p", __func__, ep);
|
|
goto err;
|
|
}
|
|
|
|
/*
|
|
* If responder's RTR requirement did not match with what initiator
|
|
* supports, generate TERM message
|
|
*/
|
|
if (rtr_mismatch) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pmro %p", __func__, ep);
|
|
printk(KERN_ERR "%s: RTR mismatch, sending TERM\n", __func__);
|
|
attrs.layer_etype = LAYER_MPA | DDP_LLP;
|
|
attrs.ecode = MPA_NOMATCH_RTR;
|
|
attrs.next_state = C4IW_QP_STATE_TERMINATE;
|
|
err = c4iw_modify_qp(ep->com.qp->rhp, ep->com.qp,
|
|
C4IW_QP_ATTR_NEXT_STATE, &attrs, 0);
|
|
err = -ENOMEM;
|
|
disconnect = 1;
|
|
goto out;
|
|
}
|
|
|
|
/*
|
|
* Generate TERM if initiator IRD is not sufficient for responder
|
|
* provided ORD. Currently, we do the same behaviour even when
|
|
* responder provided IRD is also not sufficient as regards to
|
|
* initiator ORD.
|
|
*/
|
|
if (insuff_ird) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:pmrp %p", __func__, ep);
|
|
printk(KERN_ERR "%s: Insufficient IRD, sending TERM\n",
|
|
__func__);
|
|
attrs.layer_etype = LAYER_MPA | DDP_LLP;
|
|
attrs.ecode = MPA_INSUFF_IRD;
|
|
attrs.next_state = C4IW_QP_STATE_TERMINATE;
|
|
err = c4iw_modify_qp(ep->com.qp->rhp, ep->com.qp,
|
|
C4IW_QP_ATTR_NEXT_STATE, &attrs, 0);
|
|
err = -ENOMEM;
|
|
disconnect = 1;
|
|
goto out;
|
|
}
|
|
goto out;
|
|
err_stop_timer:
|
|
STOP_EP_TIMER(ep);
|
|
err:
|
|
disconnect = 2;
|
|
out:
|
|
connect_reply_upcall(ep, err);
|
|
CTR2(KTR_IW_CXGBE, "%s:pmrE %p", __func__, ep);
|
|
return disconnect;
|
|
}
|
|
|
|
/*
|
|
* process_mpa_request - process streaming mode MPA request
|
|
*
|
|
* Returns:
|
|
*
|
|
* 0 upon success indicating a connect request was delivered to the ULP
|
|
* or the mpa request is incomplete but valid so far.
|
|
*
|
|
* 1 if a failure requires the caller to close the connection.
|
|
*
|
|
* 2 if a failure requires the caller to abort the connection.
|
|
*/
|
|
static int
|
|
process_mpa_request(struct c4iw_ep *ep)
|
|
{
|
|
struct mpa_message *mpa;
|
|
u16 plen;
|
|
int flags = MSG_DONTWAIT;
|
|
int rc;
|
|
struct iovec iov;
|
|
struct uio uio;
|
|
enum c4iw_ep_state state = state_read(&ep->com);
|
|
|
|
CTR3(KTR_IW_CXGBE, "%s: ep %p, state %s", __func__, ep, states[state]);
|
|
|
|
if (state != MPA_REQ_WAIT)
|
|
return 0;
|
|
|
|
iov.iov_base = &ep->mpa_pkt[ep->mpa_pkt_len];
|
|
iov.iov_len = sizeof(ep->mpa_pkt) - ep->mpa_pkt_len;
|
|
uio.uio_iov = &iov;
|
|
uio.uio_iovcnt = 1;
|
|
uio.uio_offset = 0;
|
|
uio.uio_resid = sizeof(ep->mpa_pkt) - ep->mpa_pkt_len;
|
|
uio.uio_segflg = UIO_SYSSPACE;
|
|
uio.uio_rw = UIO_READ;
|
|
uio.uio_td = NULL; /* uio.uio_td = ep->com.thread; */
|
|
|
|
rc = soreceive(ep->com.so, NULL, &uio, NULL, NULL, &flags);
|
|
if (rc == EAGAIN)
|
|
return 0;
|
|
else if (rc)
|
|
goto err_stop_timer;
|
|
|
|
KASSERT(uio.uio_offset > 0, ("%s: sorecieve on so %p read no data",
|
|
__func__, ep->com.so));
|
|
ep->mpa_pkt_len += uio.uio_offset;
|
|
|
|
/*
|
|
* If we get more than the supported amount of private data then we must
|
|
* fail this connection. XXX: check so_rcv->sb_cc, or peek with another
|
|
* soreceive, or increase the size of mpa_pkt by 1 and abort if the last
|
|
* byte is filled by the soreceive above.
|
|
*/
|
|
|
|
/* Don't even have the MPA message. Wait for more data to arrive. */
|
|
if (ep->mpa_pkt_len < sizeof(*mpa))
|
|
return 0;
|
|
mpa = (struct mpa_message *) ep->mpa_pkt;
|
|
|
|
/*
|
|
* Validate MPA Header.
|
|
*/
|
|
if (mpa->revision > mpa_rev) {
|
|
log(LOG_ERR, "%s: MPA version mismatch. Local = %d,"
|
|
" Received = %d\n", __func__, mpa_rev, mpa->revision);
|
|
goto err_stop_timer;
|
|
}
|
|
|
|
if (memcmp(mpa->key, MPA_KEY_REQ, sizeof(mpa->key)))
|
|
goto err_stop_timer;
|
|
|
|
/*
|
|
* Fail if there's too much private data.
|
|
*/
|
|
plen = ntohs(mpa->private_data_size);
|
|
if (plen > MPA_MAX_PRIVATE_DATA)
|
|
goto err_stop_timer;
|
|
|
|
/*
|
|
* If plen does not account for pkt size
|
|
*/
|
|
if (ep->mpa_pkt_len > (sizeof(*mpa) + plen))
|
|
goto err_stop_timer;
|
|
|
|
ep->plen = (u8) plen;
|
|
|
|
/*
|
|
* If we don't have all the pdata yet, then bail.
|
|
*/
|
|
if (ep->mpa_pkt_len < (sizeof(*mpa) + plen))
|
|
return 0;
|
|
|
|
/*
|
|
* If we get here we have accumulated the entire mpa
|
|
* start reply message including private data.
|
|
*/
|
|
ep->mpa_attr.initiator = 0;
|
|
ep->mpa_attr.crc_enabled = (mpa->flags & MPA_CRC) | crc_enabled ? 1 : 0;
|
|
ep->mpa_attr.recv_marker_enabled = markers_enabled;
|
|
ep->mpa_attr.xmit_marker_enabled = mpa->flags & MPA_MARKERS ? 1 : 0;
|
|
ep->mpa_attr.version = mpa->revision;
|
|
if (mpa->revision == 1)
|
|
ep->tried_with_mpa_v1 = 1;
|
|
ep->mpa_attr.p2p_type = FW_RI_INIT_P2PTYPE_DISABLED;
|
|
|
|
if (mpa->revision == 2) {
|
|
ep->mpa_attr.enhanced_rdma_conn =
|
|
mpa->flags & MPA_ENHANCED_RDMA_CONN ? 1 : 0;
|
|
if (ep->mpa_attr.enhanced_rdma_conn) {
|
|
struct mpa_v2_conn_params *mpa_v2_params;
|
|
u16 ird, ord;
|
|
|
|
mpa_v2_params = (void *)&ep->mpa_pkt[sizeof(*mpa)];
|
|
ird = ntohs(mpa_v2_params->ird);
|
|
ord = ntohs(mpa_v2_params->ord);
|
|
|
|
ep->ird = ird & MPA_V2_IRD_ORD_MASK;
|
|
ep->ord = ord & MPA_V2_IRD_ORD_MASK;
|
|
if (ird & MPA_V2_PEER2PEER_MODEL && peer2peer) {
|
|
if (ord & MPA_V2_RDMA_WRITE_RTR) {
|
|
ep->mpa_attr.p2p_type =
|
|
FW_RI_INIT_P2PTYPE_RDMA_WRITE;
|
|
} else if (ord & MPA_V2_RDMA_READ_RTR) {
|
|
ep->mpa_attr.p2p_type =
|
|
FW_RI_INIT_P2PTYPE_READ_REQ;
|
|
}
|
|
}
|
|
}
|
|
} else if (mpa->revision == 1 && peer2peer)
|
|
ep->mpa_attr.p2p_type = p2p_type;
|
|
|
|
if (set_tcpinfo(ep))
|
|
goto err_stop_timer;
|
|
|
|
CTR5(KTR_IW_CXGBE, "%s: crc_enabled = %d, recv_marker_enabled = %d, "
|
|
"xmit_marker_enabled = %d, version = %d", __func__,
|
|
ep->mpa_attr.crc_enabled, ep->mpa_attr.recv_marker_enabled,
|
|
ep->mpa_attr.xmit_marker_enabled, ep->mpa_attr.version);
|
|
|
|
state_set(&ep->com, MPA_REQ_RCVD);
|
|
STOP_EP_TIMER(ep);
|
|
|
|
/* drive upcall */
|
|
mutex_lock(&ep->parent_ep->com.mutex);
|
|
if (ep->parent_ep->com.state != DEAD) {
|
|
if(connect_request_upcall(ep))
|
|
goto err_out;
|
|
}else {
|
|
goto err_out;
|
|
}
|
|
mutex_unlock(&ep->parent_ep->com.mutex);
|
|
return 0;
|
|
|
|
err_stop_timer:
|
|
STOP_EP_TIMER(ep);
|
|
err_out:
|
|
return 2;
|
|
}
|
|
|
|
/*
|
|
* Upcall from the adapter indicating data has been transmitted.
|
|
* For us its just the single MPA request or reply. We can now free
|
|
* the skb holding the mpa message.
|
|
*/
|
|
int c4iw_reject_cr(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len)
|
|
{
|
|
int err;
|
|
struct c4iw_ep *ep = to_ep(cm_id);
|
|
CTR2(KTR_IW_CXGBE, "%s:crcB %p", __func__, ep);
|
|
int disconnect = 0;
|
|
|
|
if (state_read(&ep->com) == DEAD) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:crc1 %p", __func__, ep);
|
|
c4iw_put_ep(&ep->com);
|
|
return -ECONNRESET;
|
|
}
|
|
set_bit(ULP_REJECT, &ep->com.history);
|
|
BUG_ON(state_read(&ep->com) != MPA_REQ_RCVD);
|
|
|
|
if (mpa_rev == 0) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:crc2 %p", __func__, ep);
|
|
disconnect = 2;
|
|
}
|
|
else {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:crc3 %p", __func__, ep);
|
|
err = send_mpa_reject(ep, pdata, pdata_len);
|
|
err = soshutdown(ep->com.so, 3);
|
|
}
|
|
c4iw_put_ep(&ep->com);
|
|
if (disconnect)
|
|
err = c4iw_ep_disconnect(ep, disconnect == 2, GFP_KERNEL);
|
|
CTR2(KTR_IW_CXGBE, "%s:crc4 %p", __func__, ep);
|
|
return 0;
|
|
}
|
|
|
|
int c4iw_accept_cr(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
|
|
{
|
|
int err;
|
|
struct c4iw_qp_attributes attrs;
|
|
enum c4iw_qp_attr_mask mask;
|
|
struct c4iw_ep *ep = to_ep(cm_id);
|
|
struct c4iw_dev *h = to_c4iw_dev(cm_id->device);
|
|
struct c4iw_qp *qp = get_qhp(h, conn_param->qpn);
|
|
int abort = 0;
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:cacB %p", __func__, ep);
|
|
|
|
if (state_read(&ep->com) == DEAD) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:cac1 %p", __func__, ep);
|
|
err = -ECONNRESET;
|
|
goto err_out;
|
|
}
|
|
|
|
BUG_ON(state_read(&ep->com) != MPA_REQ_RCVD);
|
|
BUG_ON(!qp);
|
|
|
|
set_bit(ULP_ACCEPT, &ep->com.history);
|
|
|
|
if ((conn_param->ord > c4iw_max_read_depth) ||
|
|
(conn_param->ird > c4iw_max_read_depth)) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:cac2 %p", __func__, ep);
|
|
err = -EINVAL;
|
|
goto err_abort;
|
|
}
|
|
|
|
if (ep->mpa_attr.version == 2 && ep->mpa_attr.enhanced_rdma_conn) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:cac3 %p", __func__, ep);
|
|
|
|
if (conn_param->ord > ep->ird) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:cac4 %p", __func__, ep);
|
|
ep->ird = conn_param->ird;
|
|
ep->ord = conn_param->ord;
|
|
send_mpa_reject(ep, conn_param->private_data,
|
|
conn_param->private_data_len);
|
|
err = -ENOMEM;
|
|
goto err_abort;
|
|
}
|
|
|
|
if (conn_param->ird > ep->ord) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:cac5 %p", __func__, ep);
|
|
|
|
if (!ep->ord) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:cac6 %p", __func__, ep);
|
|
conn_param->ird = 1;
|
|
}
|
|
else {
|
|
CTR2(KTR_IW_CXGBE, "%s:cac7 %p", __func__, ep);
|
|
err = -ENOMEM;
|
|
goto err_abort;
|
|
}
|
|
}
|
|
|
|
}
|
|
ep->ird = conn_param->ird;
|
|
ep->ord = conn_param->ord;
|
|
|
|
if (ep->mpa_attr.version != 2) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:cac8 %p", __func__, ep);
|
|
|
|
if (peer2peer && ep->ird == 0) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:cac9 %p", __func__, ep);
|
|
ep->ird = 1;
|
|
}
|
|
}
|
|
|
|
|
|
ep->com.cm_id = cm_id;
|
|
ref_cm_id(&ep->com);
|
|
ep->com.qp = qp;
|
|
ref_qp(ep);
|
|
//ep->ofld_txq = TOEPCB(ep->com.so)->ofld_txq;
|
|
|
|
/* bind QP to EP and move to RTS */
|
|
attrs.mpa_attr = ep->mpa_attr;
|
|
attrs.max_ird = ep->ird;
|
|
attrs.max_ord = ep->ord;
|
|
attrs.llp_stream_handle = ep;
|
|
attrs.next_state = C4IW_QP_STATE_RTS;
|
|
|
|
/* bind QP and TID with INIT_WR */
|
|
mask = C4IW_QP_ATTR_NEXT_STATE |
|
|
C4IW_QP_ATTR_LLP_STREAM_HANDLE |
|
|
C4IW_QP_ATTR_MPA_ATTR |
|
|
C4IW_QP_ATTR_MAX_IRD |
|
|
C4IW_QP_ATTR_MAX_ORD;
|
|
|
|
err = c4iw_modify_qp(ep->com.qp->rhp, ep->com.qp, mask, &attrs, 1);
|
|
|
|
if (err) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:caca %p", __func__, ep);
|
|
goto err_defef_cm_id;
|
|
}
|
|
err = send_mpa_reply(ep, conn_param->private_data,
|
|
conn_param->private_data_len);
|
|
|
|
if (err) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:caca %p", __func__, ep);
|
|
goto err_defef_cm_id;
|
|
}
|
|
|
|
state_set(&ep->com, FPDU_MODE);
|
|
established_upcall(ep);
|
|
c4iw_put_ep(&ep->com);
|
|
CTR2(KTR_IW_CXGBE, "%s:cacE %p", __func__, ep);
|
|
return 0;
|
|
err_defef_cm_id:
|
|
deref_cm_id(&ep->com);
|
|
err_abort:
|
|
abort = 1;
|
|
err_out:
|
|
if (abort)
|
|
c4iw_ep_disconnect(ep, 1, GFP_KERNEL);
|
|
c4iw_put_ep(&ep->com);
|
|
CTR2(KTR_IW_CXGBE, "%s:cacE err %p", __func__, ep);
|
|
return err;
|
|
}
|
|
|
|
|
|
|
|
int c4iw_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
|
|
{
|
|
int err = 0;
|
|
struct c4iw_dev *dev = to_c4iw_dev(cm_id->device);
|
|
struct c4iw_ep *ep = NULL;
|
|
struct nhop4_extended nh4;
|
|
struct toedev *tdev;
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:ccB %p", __func__, cm_id);
|
|
|
|
if ((conn_param->ord > c4iw_max_read_depth) ||
|
|
(conn_param->ird > c4iw_max_read_depth)) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:cc1 %p", __func__, cm_id);
|
|
err = -EINVAL;
|
|
goto out;
|
|
}
|
|
ep = alloc_ep(sizeof(*ep), M_NOWAIT);
|
|
|
|
if (!ep) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:cc2 %p", __func__, cm_id);
|
|
printk(KERN_ERR MOD "%s - cannot alloc ep.\n", __func__);
|
|
err = -ENOMEM;
|
|
goto out;
|
|
}
|
|
init_timer(&ep->timer);
|
|
ep->plen = conn_param->private_data_len;
|
|
|
|
if (ep->plen) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:cc3 %p", __func__, ep);
|
|
memcpy(ep->mpa_pkt + sizeof(struct mpa_message),
|
|
conn_param->private_data, ep->plen);
|
|
}
|
|
ep->ird = conn_param->ird;
|
|
ep->ord = conn_param->ord;
|
|
|
|
if (peer2peer && ep->ord == 0) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:cc4 %p", __func__, ep);
|
|
ep->ord = 1;
|
|
}
|
|
|
|
ep->com.dev = dev;
|
|
ep->com.cm_id = cm_id;
|
|
ref_cm_id(&ep->com);
|
|
ep->com.qp = get_qhp(dev, conn_param->qpn);
|
|
|
|
if (!ep->com.qp) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:cc5 %p", __func__, ep);
|
|
err = -EINVAL;
|
|
goto fail2;
|
|
}
|
|
ref_qp(ep);
|
|
ep->com.thread = curthread;
|
|
ep->com.so = cm_id->so;
|
|
|
|
init_sock(&ep->com);
|
|
|
|
/* find a route */
|
|
err = find_route(
|
|
cm_id->local_addr.sin_addr.s_addr,
|
|
cm_id->remote_addr.sin_addr.s_addr,
|
|
cm_id->local_addr.sin_port,
|
|
cm_id->remote_addr.sin_port, 0, &nh4);
|
|
|
|
if (err) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:cc7 %p", __func__, ep);
|
|
printk(KERN_ERR MOD "%s - cannot find route.\n", __func__);
|
|
err = -EHOSTUNREACH;
|
|
goto fail2;
|
|
}
|
|
|
|
if (!(nh4.nh_ifp->if_capenable & IFCAP_TOE)) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:cc8 %p", __func__, ep);
|
|
printf("%s - interface not TOE capable.\n", __func__);
|
|
close_socket(&ep->com, 0);
|
|
err = -ENOPROTOOPT;
|
|
goto fail3;
|
|
}
|
|
tdev = TOEDEV(nh4.nh_ifp);
|
|
|
|
if (tdev == NULL) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:cc9 %p", __func__, ep);
|
|
printf("%s - No toedev for interface.\n", __func__);
|
|
goto fail3;
|
|
}
|
|
fib4_free_nh_ext(RT_DEFAULT_FIB, &nh4);
|
|
|
|
state_set(&ep->com, CONNECTING);
|
|
ep->tos = 0;
|
|
ep->com.local_addr = cm_id->local_addr;
|
|
ep->com.remote_addr = cm_id->remote_addr;
|
|
err = soconnect(ep->com.so, (struct sockaddr *)&ep->com.remote_addr,
|
|
ep->com.thread);
|
|
|
|
if (!err) {
|
|
CTR2(KTR_IW_CXGBE, "%s:cca %p", __func__, ep);
|
|
goto out;
|
|
} else {
|
|
close_socket(&ep->com, 0);
|
|
goto fail2;
|
|
}
|
|
|
|
fail3:
|
|
CTR2(KTR_IW_CXGBE, "%s:ccb %p", __func__, ep);
|
|
fib4_free_nh_ext(RT_DEFAULT_FIB, &nh4);
|
|
fail2:
|
|
deref_cm_id(&ep->com);
|
|
c4iw_put_ep(&ep->com);
|
|
out:
|
|
CTR2(KTR_IW_CXGBE, "%s:ccE %p", __func__, ep);
|
|
return err;
|
|
}
|
|
|
|
/*
|
|
* iwcm->create_listen_ep. Returns -errno on failure.
|
|
*/
|
|
int
|
|
c4iw_create_listen_ep(struct iw_cm_id *cm_id, int backlog)
|
|
{
|
|
int rc;
|
|
struct c4iw_dev *dev = to_c4iw_dev(cm_id->device);
|
|
struct c4iw_listen_ep *ep;
|
|
struct socket *so = cm_id->so;
|
|
|
|
ep = alloc_ep(sizeof(*ep), GFP_KERNEL);
|
|
CTR5(KTR_IW_CXGBE, "%s: cm_id %p, lso %p, ep %p, inp %p", __func__,
|
|
cm_id, so, ep, so->so_pcb);
|
|
if (ep == NULL) {
|
|
log(LOG_ERR, "%s: failed to alloc memory for endpoint\n",
|
|
__func__);
|
|
rc = ENOMEM;
|
|
goto failed;
|
|
}
|
|
|
|
ep->com.cm_id = cm_id;
|
|
ref_cm_id(&ep->com);
|
|
ep->com.dev = dev;
|
|
ep->backlog = backlog;
|
|
ep->com.local_addr = cm_id->local_addr;
|
|
ep->com.thread = curthread;
|
|
state_set(&ep->com, LISTEN);
|
|
ep->com.so = so;
|
|
|
|
cm_id->provider_data = ep;
|
|
return (0);
|
|
|
|
failed:
|
|
CTR3(KTR_IW_CXGBE, "%s: cm_id %p, FAILED (%d)", __func__, cm_id, rc);
|
|
return (-rc);
|
|
}
|
|
|
|
void
|
|
c4iw_destroy_listen_ep(struct iw_cm_id *cm_id)
|
|
{
|
|
struct c4iw_listen_ep *ep = to_listen_ep(cm_id);
|
|
|
|
CTR4(KTR_IW_CXGBE, "%s: cm_id %p, so %p, state %s", __func__, cm_id,
|
|
cm_id->so, states[ep->com.state]);
|
|
|
|
state_set(&ep->com, DEAD);
|
|
deref_cm_id(&ep->com);
|
|
c4iw_put_ep(&ep->com);
|
|
|
|
return;
|
|
}
|
|
|
|
int c4iw_ep_disconnect(struct c4iw_ep *ep, int abrupt, gfp_t gfp)
|
|
{
|
|
int ret = 0;
|
|
int close = 0;
|
|
int fatal = 0;
|
|
struct c4iw_rdev *rdev;
|
|
|
|
mutex_lock(&ep->com.mutex);
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:cedB %p", __func__, ep);
|
|
|
|
rdev = &ep->com.dev->rdev;
|
|
|
|
if (c4iw_fatal_error(rdev)) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:ced1 %p", __func__, ep);
|
|
fatal = 1;
|
|
close_complete_upcall(ep, -ECONNRESET);
|
|
ep->com.state = DEAD;
|
|
}
|
|
CTR3(KTR_IW_CXGBE, "%s:ced2 %p %s", __func__, ep,
|
|
states[ep->com.state]);
|
|
|
|
switch (ep->com.state) {
|
|
|
|
case MPA_REQ_WAIT:
|
|
case MPA_REQ_SENT:
|
|
case MPA_REQ_RCVD:
|
|
case MPA_REP_SENT:
|
|
case FPDU_MODE:
|
|
close = 1;
|
|
if (abrupt)
|
|
ep->com.state = ABORTING;
|
|
else {
|
|
ep->com.state = CLOSING;
|
|
START_EP_TIMER(ep);
|
|
}
|
|
set_bit(CLOSE_SENT, &ep->com.flags);
|
|
break;
|
|
|
|
case CLOSING:
|
|
|
|
if (!test_and_set_bit(CLOSE_SENT, &ep->com.flags)) {
|
|
|
|
close = 1;
|
|
if (abrupt) {
|
|
STOP_EP_TIMER(ep);
|
|
ep->com.state = ABORTING;
|
|
} else
|
|
ep->com.state = MORIBUND;
|
|
}
|
|
break;
|
|
|
|
case MORIBUND:
|
|
case ABORTING:
|
|
case DEAD:
|
|
CTR3(KTR_IW_CXGBE,
|
|
"%s ignoring disconnect ep %p state %u", __func__,
|
|
ep, ep->com.state);
|
|
break;
|
|
|
|
default:
|
|
BUG();
|
|
break;
|
|
}
|
|
|
|
mutex_unlock(&ep->com.mutex);
|
|
|
|
if (close) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:ced3 %p", __func__, ep);
|
|
|
|
if (abrupt) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:ced4 %p", __func__, ep);
|
|
set_bit(EP_DISC_ABORT, &ep->com.history);
|
|
close_complete_upcall(ep, -ECONNRESET);
|
|
ret = send_abort(ep);
|
|
} else {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:ced5 %p", __func__, ep);
|
|
set_bit(EP_DISC_CLOSE, &ep->com.history);
|
|
|
|
if (!ep->parent_ep)
|
|
__state_set(&ep->com, MORIBUND);
|
|
ret = shutdown_socket(&ep->com);
|
|
}
|
|
|
|
if (ret) {
|
|
|
|
fatal = 1;
|
|
}
|
|
}
|
|
|
|
if (fatal) {
|
|
set_bit(EP_DISC_FAIL, &ep->com.history);
|
|
if (!abrupt) {
|
|
STOP_EP_TIMER(ep);
|
|
close_complete_upcall(ep, -EIO);
|
|
}
|
|
if (ep->com.qp) {
|
|
struct c4iw_qp_attributes attrs;
|
|
|
|
attrs.next_state = C4IW_QP_STATE_ERROR;
|
|
ret = c4iw_modify_qp(ep->com.dev, ep->com.qp,
|
|
C4IW_QP_ATTR_NEXT_STATE,
|
|
&attrs, 1);
|
|
if (ret) {
|
|
CTR2(KTR_IW_CXGBE, "%s:ced7 %p", __func__, ep);
|
|
printf("%s - qp <- error failed!\n", __func__);
|
|
}
|
|
}
|
|
release_ep_resources(ep);
|
|
ep->com.state = DEAD;
|
|
CTR2(KTR_IW_CXGBE, "%s:ced6 %p", __func__, ep);
|
|
}
|
|
CTR2(KTR_IW_CXGBE, "%s:cedE %p", __func__, ep);
|
|
return ret;
|
|
}
|
|
|
|
#ifdef C4IW_EP_REDIRECT
|
|
int c4iw_ep_redirect(void *ctx, struct dst_entry *old, struct dst_entry *new,
|
|
struct l2t_entry *l2t)
|
|
{
|
|
struct c4iw_ep *ep = ctx;
|
|
|
|
if (ep->dst != old)
|
|
return 0;
|
|
|
|
PDBG("%s ep %p redirect to dst %p l2t %p\n", __func__, ep, new,
|
|
l2t);
|
|
dst_hold(new);
|
|
cxgb4_l2t_release(ep->l2t);
|
|
ep->l2t = l2t;
|
|
dst_release(old);
|
|
ep->dst = new;
|
|
return 1;
|
|
}
|
|
#endif
|
|
|
|
|
|
|
|
static void ep_timeout(unsigned long arg)
|
|
{
|
|
struct c4iw_ep *ep = (struct c4iw_ep *)arg;
|
|
int kickit = 0;
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:etB %p", __func__, ep);
|
|
spin_lock(&timeout_lock);
|
|
|
|
if (!test_and_set_bit(TIMEOUT, &ep->com.flags)) {
|
|
|
|
/*
|
|
* Only insert if it is not already on the list.
|
|
*/
|
|
if (!ep->entry.next) {
|
|
list_add_tail(&ep->entry, &timeout_list);
|
|
kickit = 1;
|
|
}
|
|
}
|
|
spin_unlock(&timeout_lock);
|
|
|
|
if (kickit) {
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:et1 %p", __func__, ep);
|
|
queue_work(c4iw_taskq, &c4iw_task);
|
|
}
|
|
CTR2(KTR_IW_CXGBE, "%s:etE %p", __func__, ep);
|
|
}
|
|
|
|
static int fw6_wr_rpl(struct adapter *sc, const __be64 *rpl)
|
|
{
|
|
uint64_t val = be64toh(*rpl);
|
|
int ret;
|
|
struct c4iw_wr_wait *wr_waitp;
|
|
|
|
ret = (int)((val >> 8) & 0xff);
|
|
wr_waitp = (struct c4iw_wr_wait *)rpl[1];
|
|
CTR3(KTR_IW_CXGBE, "%s wr_waitp %p ret %u", __func__, wr_waitp, ret);
|
|
if (wr_waitp)
|
|
c4iw_wake_up(wr_waitp, ret ? -ret : 0);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int fw6_cqe_handler(struct adapter *sc, const __be64 *rpl)
|
|
{
|
|
struct t4_cqe cqe =*(const struct t4_cqe *)(&rpl[0]);
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s rpl %p", __func__, rpl);
|
|
c4iw_ev_dispatch(sc->iwarp_softc, &cqe);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int terminate(struct sge_iq *iq, const struct rss_header *rss, struct mbuf *m)
|
|
{
|
|
struct adapter *sc = iq->adapter;
|
|
const struct cpl_rdma_terminate *cpl = mtod(m, const void *);
|
|
unsigned int tid = GET_TID(cpl);
|
|
struct c4iw_qp_attributes attrs;
|
|
struct toepcb *toep = lookup_tid(sc, tid);
|
|
struct socket *so;
|
|
struct c4iw_ep *ep;
|
|
|
|
INP_WLOCK(toep->inp);
|
|
so = inp_inpcbtosocket(toep->inp);
|
|
ep = so->so_rcv.sb_upcallarg;
|
|
INP_WUNLOCK(toep->inp);
|
|
|
|
CTR2(KTR_IW_CXGBE, "%s:tB %p %d", __func__, ep);
|
|
|
|
if (ep && ep->com.qp) {
|
|
|
|
printk(KERN_WARNING MOD "TERM received tid %u qpid %u\n", tid,
|
|
ep->com.qp->wq.sq.qid);
|
|
attrs.next_state = C4IW_QP_STATE_TERMINATE;
|
|
c4iw_modify_qp(ep->com.dev, ep->com.qp, C4IW_QP_ATTR_NEXT_STATE, &attrs,
|
|
1);
|
|
} else
|
|
printk(KERN_WARNING MOD "TERM received tid %u no ep/qp\n", tid);
|
|
CTR2(KTR_IW_CXGBE, "%s:tE %p %d", __func__, ep);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
c4iw_cm_init_cpl(struct adapter *sc)
|
|
{
|
|
|
|
t4_register_cpl_handler(sc, CPL_RDMA_TERMINATE, terminate);
|
|
t4_register_fw_msg_handler(sc, FW6_TYPE_WR_RPL, fw6_wr_rpl);
|
|
t4_register_fw_msg_handler(sc, FW6_TYPE_CQE, fw6_cqe_handler);
|
|
t4_register_an_handler(sc, c4iw_ev_handler);
|
|
}
|
|
|
|
void
|
|
c4iw_cm_term_cpl(struct adapter *sc)
|
|
{
|
|
|
|
t4_register_cpl_handler(sc, CPL_RDMA_TERMINATE, NULL);
|
|
t4_register_fw_msg_handler(sc, FW6_TYPE_WR_RPL, NULL);
|
|
t4_register_fw_msg_handler(sc, FW6_TYPE_CQE, NULL);
|
|
}
|
|
|
|
int __init c4iw_cm_init(void)
|
|
{
|
|
|
|
TAILQ_INIT(&req_list);
|
|
spin_lock_init(&req_lock);
|
|
INIT_LIST_HEAD(&timeout_list);
|
|
spin_lock_init(&timeout_lock);
|
|
|
|
INIT_WORK(&c4iw_task, process_req);
|
|
|
|
c4iw_taskq = create_singlethread_workqueue("iw_cxgbe");
|
|
if (!c4iw_taskq)
|
|
return -ENOMEM;
|
|
|
|
|
|
return 0;
|
|
}
|
|
|
|
void __exit c4iw_cm_term(void)
|
|
{
|
|
WARN_ON(!TAILQ_EMPTY(&req_list));
|
|
WARN_ON(!list_empty(&timeout_list));
|
|
flush_workqueue(c4iw_taskq);
|
|
destroy_workqueue(c4iw_taskq);
|
|
}
|
|
#endif
|