RDMA/nes: Add a driver for NetEffect RNICs

Add a standard NIC and RDMA/iWARP driver for NetEffect 1/10Gb ethernet adapters.

Signed-off-by: Glenn Streiff <gstreiff@neteffect.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 3088 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
new file mode 100644
index 00000000000..bd5cfeaac20
--- /dev/null
+++ b/drivers/infiniband/hw/nes/nes_cm.c
@@ -0,0 +1,3088 @@
+/*
+ * Copyright (c) 2006 - 2008 NetEffect, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     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.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+
+#define TCPOPT_TIMESTAMP 8
+
+#include <asm/atomic.h>
+#include <linux/skbuff.h>
+#include <linux/ip.h>
+#include <linux/tcp.h>
+#include <linux/init.h>
+#include <linux/if_arp.h>
+#include <linux/notifier.h>
+#include <linux/net.h>
+#include <linux/types.h>
+#include <linux/timer.h>
+#include <linux/time.h>
+#include <linux/delay.h>
+#include <linux/etherdevice.h>
+#include <linux/netdevice.h>
+#include <linux/random.h>
+#include <linux/list.h>
+#include <linux/threads.h>
+
+#include <net/neighbour.h>
+#include <net/route.h>
+#include <net/ip_fib.h>
+
+#include "nes.h"
+
+u32 cm_packets_sent;
+u32 cm_packets_bounced;
+u32 cm_packets_dropped;
+u32 cm_packets_retrans;
+u32 cm_packets_created;
+u32 cm_packets_received;
+u32 cm_listens_created;
+u32 cm_listens_destroyed;
+u32 cm_backlog_drops;
+atomic_t cm_loopbacks;
+atomic_t cm_nodes_created;
+atomic_t cm_nodes_destroyed;
+atomic_t cm_accel_dropped_pkts;
+atomic_t cm_resets_recvd;
+
+static inline int mini_cm_accelerated(struct nes_cm_core *, struct nes_cm_node *);
+static struct nes_cm_listener *mini_cm_listen(struct nes_cm_core *,
+                struct nes_vnic *, struct nes_cm_info *);
+static int add_ref_cm_node(struct nes_cm_node *);
+static int rem_ref_cm_node(struct nes_cm_core *, struct nes_cm_node *);
+static int mini_cm_del_listen(struct nes_cm_core *, struct nes_cm_listener *);
+
+
+/* External CM API Interface */
+/* instance of function pointers for client API */
+/* set address of this instance to cm_core->cm_ops at cm_core alloc */
+static struct nes_cm_ops nes_cm_api = {
+        mini_cm_accelerated,
+        mini_cm_listen,
+        mini_cm_del_listen,
+        mini_cm_connect,
+        mini_cm_close,
+        mini_cm_accept,
+        mini_cm_reject,
+        mini_cm_recv_pkt,
+        mini_cm_dealloc_core,
+        mini_cm_get,
+        mini_cm_set
+};
+
+struct nes_cm_core *g_cm_core;
+
+atomic_t cm_connects;
+atomic_t cm_accepts;
+atomic_t cm_disconnects;
+atomic_t cm_closes;
+atomic_t cm_connecteds;
+atomic_t cm_connect_reqs;
+atomic_t cm_rejects;
+
+
+/**
+ * create_event
+ */
+static struct nes_cm_event *create_event(struct nes_cm_node *cm_node,
+                enum nes_cm_event_type type)
+{
+        struct nes_cm_event *event;
+
+        if (!cm_node->cm_id)
+                return NULL;
+
+        /* allocate an empty event */
+        event = kzalloc(sizeof(*event), GFP_ATOMIC);
+
+        if (!event)
+                return NULL;
+
+        event->type = type;
+        event->cm_node = cm_node;
+        event->cm_info.rem_addr = cm_node->rem_addr;
+        event->cm_info.loc_addr = cm_node->loc_addr;
+        event->cm_info.rem_port = cm_node->rem_port;
+        event->cm_info.loc_port = cm_node->loc_port;
+        event->cm_info.cm_id = cm_node->cm_id;
+
+        nes_debug(NES_DBG_CM, "Created event=%p, type=%u, dst_addr=%08x[%x],"
+                        " src_addr=%08x[%x]\n",
+                        event, type,
+                        event->cm_info.loc_addr, event->cm_info.loc_port,
+                        event->cm_info.rem_addr, event->cm_info.rem_port);
+
+        nes_cm_post_event(event);
+        return event;
+}
+
+
+/**
+ * send_mpa_request
+ */
+int send_mpa_request(struct nes_cm_node *cm_node)
+{
+        struct sk_buff *skb;
+        int ret;
+
+        skb = get_free_pkt(cm_node);
+        if (!skb) {
+                nes_debug(NES_DBG_CM, "Failed to get a Free pkt\n");
+                return -1;
+        }
+
+        /* send an MPA Request frame */
+        form_cm_frame(skb, cm_node, NULL, 0, &cm_node->mpa_frame,
+                        cm_node->mpa_frame_size, SET_ACK);
+
+        ret = schedule_nes_timer(cm_node, skb, NES_TIMER_TYPE_SEND, 1, 0);
+        if (ret < 0) {
+                return ret;
+        }
+
+        return 0;
+}
+
+
+/**
+ * recv_mpa - process a received TCP pkt, we are expecting an
+ * IETF MPA frame
+ */
+static int parse_mpa(struct nes_cm_node *cm_node, u8 *buffer, u32 len)
+{
+        struct ietf_mpa_frame *mpa_frame;
+
+        /* assume req frame is in tcp data payload */
+        if (len < sizeof(struct ietf_mpa_frame)) {
+                nes_debug(NES_DBG_CM, "The received ietf buffer was too small (%x)\n", len);
+                return -1;
+        }
+
+        mpa_frame = (struct ietf_mpa_frame *)buffer;
+        cm_node->mpa_frame_size = ntohs(mpa_frame->priv_data_len);
+
+        if (cm_node->mpa_frame_size + sizeof(struct ietf_mpa_frame) != len) {
+                nes_debug(NES_DBG_CM, "The received ietf buffer was not right"
+                                " complete (%x + %x != %x)\n",
+                                cm_node->mpa_frame_size, (u32)sizeof(struct ietf_mpa_frame), len);
+                return -1;
+        }
+
+        /* copy entire MPA frame to our cm_node's frame */
+        memcpy(cm_node->mpa_frame_buf, buffer + sizeof(struct ietf_mpa_frame),
+                        cm_node->mpa_frame_size);
+
+        return 0;
+}
+
+
+/**
+ * handle_exception_pkt - process an exception packet.
+ * We have been in a TSA state, and we have now received SW
+ * TCP/IP traffic should be a FIN request or IP pkt with options
+ */
+static int handle_exception_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb)
+{
+        int ret = 0;
+        struct tcphdr *tcph = tcp_hdr(skb);
+
+        /* first check to see if this a FIN pkt */
+        if (tcph->fin) {
+                /* we need to ACK the FIN request */
+                send_ack(cm_node);
+
+                /* check which side we are (client/server) and set next state accordingly */
+                if (cm_node->tcp_cntxt.client)
+                        cm_node->state = NES_CM_STATE_CLOSING;
+                else {
+                        /* we are the server side */
+                        cm_node->state = NES_CM_STATE_CLOSE_WAIT;
+                        /* since this is a self contained CM we don't wait for */
+                        /* an APP to close us, just send final FIN immediately */
+                        ret = send_fin(cm_node, NULL);
+                        cm_node->state = NES_CM_STATE_LAST_ACK;
+                }
+        } else {
+                ret = -EINVAL;
+        }
+
+        return ret;
+}
+
+
+/**
+ * form_cm_frame - get a free packet and build empty frame Use
+ * node info to build.
+ */
+struct sk_buff *form_cm_frame(struct sk_buff *skb, struct nes_cm_node *cm_node,
+                void *options, u32 optionsize, void *data, u32 datasize, u8 flags)
+{
+        struct tcphdr *tcph;
+        struct iphdr *iph;
+        struct ethhdr *ethh;
+        u8 *buf;
+        u16 packetsize = sizeof(*iph);
+
+        packetsize += sizeof(*tcph);
+        packetsize +=  optionsize + datasize;
+
+        memset(skb->data, 0x00, ETH_HLEN + sizeof(*iph) + sizeof(*tcph));
+
+        skb->len = 0;
+        buf = skb_put(skb, packetsize + ETH_HLEN);
+
+        ethh = (struct ethhdr *) buf;
+        buf += ETH_HLEN;
+
+        iph = (struct iphdr *)buf;
+        buf += sizeof(*iph);
+        tcph = (struct tcphdr *)buf;
+        skb_reset_mac_header(skb);
+        skb_set_network_header(skb, ETH_HLEN);
+        skb_set_transport_header(skb, ETH_HLEN+sizeof(*iph));
+        buf += sizeof(*tcph);
+
+        skb->ip_summed = CHECKSUM_PARTIAL;
+        skb->protocol = htons(0x800);
+        skb->data_len = 0;
+        skb->mac_len = ETH_HLEN;
+
+        memcpy(ethh->h_dest, cm_node->rem_mac, ETH_ALEN);
+        memcpy(ethh->h_source, cm_node->loc_mac, ETH_ALEN);
+        ethh->h_proto = htons(0x0800);
+
+        iph->version = IPVERSION;
+        iph->ihl = 5;           /* 5 * 4Byte words, IP headr len */
+        iph->tos = 0;
+        iph->tot_len = htons(packetsize);
+        iph->id = htons(++cm_node->tcp_cntxt.loc_id);
+
+        iph->frag_off = htons(0x4000);
+        iph->ttl = 0x40;
+        iph->protocol = 0x06;   /* IPPROTO_TCP */
+
+        iph->saddr = htonl(cm_node->loc_addr);
+        iph->daddr = htonl(cm_node->rem_addr);
+
+        tcph->source = htons(cm_node->loc_port);
+        tcph->dest = htons(cm_node->rem_port);
+        tcph->seq = htonl(cm_node->tcp_cntxt.loc_seq_num);
+
+        if (flags & SET_ACK) {
+                cm_node->tcp_cntxt.loc_ack_num = cm_node->tcp_cntxt.rcv_nxt;
+                tcph->ack_seq = htonl(cm_node->tcp_cntxt.loc_ack_num);
+                tcph->ack = 1;
+        } else
+                tcph->ack_seq = 0;
+
+        if (flags & SET_SYN) {
+                cm_node->tcp_cntxt.loc_seq_num++;
+                tcph->syn = 1;
+        } else
+                cm_node->tcp_cntxt.loc_seq_num += datasize;     /* data (no headers) */
+
+        if (flags & SET_FIN)
+                tcph->fin = 1;
+
+        if (flags & SET_RST)
+                tcph->rst = 1;
+
+        tcph->doff = (u16)((sizeof(*tcph) + optionsize + 3) >> 2);
+        tcph->window = htons(cm_node->tcp_cntxt.rcv_wnd);
+        tcph->urg_ptr = 0;
+        if (optionsize)
+                memcpy(buf, options, optionsize);
+        buf += optionsize;
+        if (datasize)
+                memcpy(buf, data, datasize);
+
+        skb_shinfo(skb)->nr_frags = 0;
+        cm_packets_created++;
+
+        return skb;
+}
+
+
+/**
+ * print_core - dump a cm core
+ */
+static void print_core(struct nes_cm_core *core)
+{
+        nes_debug(NES_DBG_CM, "---------------------------------------------\n");
+        nes_debug(NES_DBG_CM, "CM Core  -- (core = %p )\n", core);
+        if (!core)
+                return;
+        nes_debug(NES_DBG_CM, "---------------------------------------------\n");
+        nes_debug(NES_DBG_CM, "Session ID    : %u \n", atomic_read(&core->session_id));
+
+        nes_debug(NES_DBG_CM, "State         : %u \n",  core->state);
+
+        nes_debug(NES_DBG_CM, "Tx Free cnt   : %u \n", skb_queue_len(&core->tx_free_list));
+        nes_debug(NES_DBG_CM, "Listen Nodes  : %u \n", atomic_read(&core->listen_node_cnt));
+        nes_debug(NES_DBG_CM, "Active Nodes  : %u \n", atomic_read(&core->node_cnt));
+
+        nes_debug(NES_DBG_CM, "core          : %p \n", core);
+
+        nes_debug(NES_DBG_CM, "-------------- end core ---------------\n");
+}
+
+
+/**
+ * schedule_nes_timer
+ * note - cm_node needs to be protected before calling this. Encase in:
+ *                      rem_ref_cm_node(cm_core, cm_node);add_ref_cm_node(cm_node);
+ */
+int schedule_nes_timer(struct nes_cm_node *cm_node, struct sk_buff *skb,
+                enum nes_timer_type type, int send_retrans,
+                int close_when_complete)
+{
+        unsigned long  flags;
+        struct nes_cm_core *cm_core;
+        struct nes_timer_entry *new_send;
+        int ret = 0;
+        u32 was_timer_set;
+
+        new_send = kzalloc(sizeof(*new_send), GFP_ATOMIC);
+        if (!new_send)
+                return -1;
+        if (!cm_node)
+                return -EINVAL;
+
+        /* new_send->timetosend = currenttime */
+        new_send->retrycount = NES_DEFAULT_RETRYS;
+        new_send->retranscount = NES_DEFAULT_RETRANS;
+        new_send->skb = skb;
+        new_send->timetosend = jiffies;
+        new_send->type = type;
+        new_send->netdev = cm_node->netdev;
+        new_send->send_retrans = send_retrans;
+        new_send->close_when_complete = close_when_complete;
+
+        if (type == NES_TIMER_TYPE_CLOSE) {
+                new_send->timetosend += (HZ/2); /* TODO: decide on the correct value here */
+                spin_lock_irqsave(&cm_node->recv_list_lock, flags);
+                list_add_tail(&new_send->list, &cm_node->recv_list);
+                spin_unlock_irqrestore(&cm_node->recv_list_lock, flags);
+        }
+
+        if (type == NES_TIMER_TYPE_SEND) {
+                new_send->seq_num = htonl(tcp_hdr(skb)->seq);
+                atomic_inc(&new_send->skb->users);
+
+                ret = nes_nic_cm_xmit(new_send->skb, cm_node->netdev);
+                if (ret != NETDEV_TX_OK) {
+                        nes_debug(NES_DBG_CM, "Error sending packet %p (jiffies = %lu)\n",
+                                        new_send, jiffies);
+                        atomic_dec(&new_send->skb->users);
+                        new_send->timetosend = jiffies;
+                } else {
+                        cm_packets_sent++;
+                        if (!send_retrans) {
+                                if (close_when_complete)
+                                        rem_ref_cm_node(cm_node->cm_core, cm_node);
+                                dev_kfree_skb_any(new_send->skb);
+                                kfree(new_send);
+                                return ret;
+                        }
+                        new_send->timetosend = jiffies + NES_RETRY_TIMEOUT;
+                }
+                spin_lock_irqsave(&cm_node->retrans_list_lock, flags);
+                list_add_tail(&new_send->list, &cm_node->retrans_list);
+                spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags);
+        }
+        if (type == NES_TIMER_TYPE_RECV) {
+                new_send->seq_num = htonl(tcp_hdr(skb)->seq);
+                new_send->timetosend = jiffies;
+                spin_lock_irqsave(&cm_node->recv_list_lock, flags);
+                list_add_tail(&new_send->list, &cm_node->recv_list);
+                spin_unlock_irqrestore(&cm_node->recv_list_lock, flags);
+        }
+        cm_core = cm_node->cm_core;
+
+        was_timer_set = timer_pending(&cm_core->tcp_timer);
+
+        if (!was_timer_set) {
+                cm_core->tcp_timer.expires = new_send->timetosend;
+                add_timer(&cm_core->tcp_timer);
+        }
+
+        return ret;
+}
+
+
+/**
+ * nes_cm_timer_tick
+ */
+void nes_cm_timer_tick(unsigned long pass)
+{
+        unsigned long flags, qplockflags;
+        unsigned long nexttimeout = jiffies + NES_LONG_TIME;
+        struct iw_cm_id *cm_id;
+        struct nes_cm_node *cm_node;
+        struct nes_timer_entry *send_entry, *recv_entry;
+        struct list_head *list_core, *list_core_temp;
+        struct list_head *list_node, *list_node_temp;
+        struct nes_cm_core *cm_core = g_cm_core;
+        struct nes_qp *nesqp;
+        struct sk_buff *skb;
+        u32 settimer = 0;
+        int ret = NETDEV_TX_OK;
+        int    node_done;
+
+        spin_lock_irqsave(&cm_core->ht_lock, flags);
+
+        list_for_each_safe(list_node, list_core_temp, &cm_core->connected_nodes) {
+                cm_node = container_of(list_node, struct nes_cm_node, list);
+                add_ref_cm_node(cm_node);
+                spin_unlock_irqrestore(&cm_core->ht_lock, flags);
+                spin_lock_irqsave(&cm_node->recv_list_lock, flags);
+                list_for_each_safe(list_core, list_node_temp, &cm_node->recv_list) {
+                        recv_entry = container_of(list_core, struct nes_timer_entry, list);
+                        if ((time_after(recv_entry->timetosend, jiffies)) &&
+                                        (recv_entry->type == NES_TIMER_TYPE_CLOSE)) {
+                                if (nexttimeout > recv_entry->timetosend || !settimer) {
+                                        nexttimeout = recv_entry->timetosend;
+                                        settimer = 1;
+                                }
+                                continue;
+                        }
+                        list_del(&recv_entry->list);
+                        cm_id = cm_node->cm_id;
+                        spin_unlock_irqrestore(&cm_node->recv_list_lock, flags);
+                        if (recv_entry->type == NES_TIMER_TYPE_CLOSE) {
+                                nesqp = (struct nes_qp *)recv_entry->skb;
+                                spin_lock_irqsave(&nesqp->lock, qplockflags);
+                                if (nesqp->cm_id) {
+                                        nes_debug(NES_DBG_CM, "QP%u: cm_id = %p, refcount = %d: "
+                                                        "****** HIT A NES_TIMER_TYPE_CLOSE"
+                                                        " with something to do!!! ******\n",
+                                                        nesqp->hwqp.qp_id, cm_id,
+                                                        atomic_read(&nesqp->refcount));
+                                        nesqp->hw_tcp_state = NES_AEQE_TCP_STATE_CLOSED;
+                                        nesqp->last_aeq = NES_AEQE_AEID_RESET_SENT;
+                                        nesqp->ibqp_state = IB_QPS_ERR;
+                                        spin_unlock_irqrestore(&nesqp->lock, qplockflags);
+                                        nes_cm_disconn(nesqp);
+                                } else {
+                                        spin_unlock_irqrestore(&nesqp->lock, qplockflags);
+                                        nes_debug(NES_DBG_CM, "QP%u: cm_id = %p, refcount = %d:"
+                                                        " ****** HIT A NES_TIMER_TYPE_CLOSE"
+                                                        " with nothing to do!!! ******\n",
+                                                        nesqp->hwqp.qp_id, cm_id,
+                                                        atomic_read(&nesqp->refcount));
+                                        nes_rem_ref(&nesqp->ibqp);
+                                }
+                                if (cm_id)
+                                        cm_id->rem_ref(cm_id);
+                        }
+                        kfree(recv_entry);
+                        spin_lock_irqsave(&cm_node->recv_list_lock, flags);
+                }
+                spin_unlock_irqrestore(&cm_node->recv_list_lock, flags);
+
+                spin_lock_irqsave(&cm_node->retrans_list_lock, flags);
+                node_done = 0;
+                list_for_each_safe(list_core, list_node_temp, &cm_node->retrans_list) {
+                        if (node_done) {
+                                break;
+                        }
+                        send_entry = container_of(list_core, struct nes_timer_entry, list);
+                        if (time_after(send_entry->timetosend, jiffies)) {
+                                if (cm_node->state != NES_CM_STATE_TSA) {
+                                        if ((nexttimeout > send_entry->timetosend) || !settimer) {
+                                                nexttimeout = send_entry->timetosend;
+                                                settimer = 1;
+                                        }
+                                        node_done = 1;
+                                        continue;
+                                } else {
+                                        list_del(&send_entry->list);
+                                        skb = send_entry->skb;
+                                        spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags);
+                                        dev_kfree_skb_any(skb);
+                                        kfree(send_entry);
+                                        spin_lock_irqsave(&cm_node->retrans_list_lock, flags);
+                                        continue;
+                                }
+                        }
+                        if (send_entry->type == NES_TIMER_NODE_CLEANUP) {
+                                list_del(&send_entry->list);
+                                spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags);
+                                kfree(send_entry);
+                                spin_lock_irqsave(&cm_node->retrans_list_lock, flags);
+                                continue;
+                        }
+                        if ((send_entry->seq_num < cm_node->tcp_cntxt.rem_ack_num) ||
+                                        (cm_node->state == NES_CM_STATE_TSA) ||
+                                        (cm_node->state == NES_CM_STATE_CLOSED)) {
+                                skb = send_entry->skb;
+                                list_del(&send_entry->list);
+                                spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags);
+                                kfree(send_entry);
+                                dev_kfree_skb_any(skb);
+                                spin_lock_irqsave(&cm_node->retrans_list_lock, flags);
+                                continue;
+                        }
+
+                        if (!send_entry->retranscount || !send_entry->retrycount) {
+                                cm_packets_dropped++;
+                                skb = send_entry->skb;
+                                list_del(&send_entry->list);
+                                spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags);
+                                dev_kfree_skb_any(skb);
+                                kfree(send_entry);
+                                if (cm_node->state == NES_CM_STATE_SYN_RCVD) {
+                                        /* this node never even generated an indication up to the cm */
+                                        rem_ref_cm_node(cm_core, cm_node);
+                                } else {
+                                        cm_node->state = NES_CM_STATE_CLOSED;
+                                        create_event(cm_node, NES_CM_EVENT_ABORTED);
+                                }
+                                spin_lock_irqsave(&cm_node->retrans_list_lock, flags);
+                                continue;
+                        }
+                        /* this seems like the correct place, but leave send entry unprotected */
+                        // spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags);
+                        atomic_inc(&send_entry->skb->users);
+                        cm_packets_retrans++;
+                        nes_debug(NES_DBG_CM, "Retransmitting send_entry %p for node %p,"
+                                        " jiffies = %lu, time to send =  %lu, retranscount = %u, "
+                                        "send_entry->seq_num = 0x%08X, cm_node->tcp_cntxt.rem_ack_num = 0x%08X\n",
+                                        send_entry, cm_node, jiffies, send_entry->timetosend, send_entry->retranscount,
+                                        send_entry->seq_num, cm_node->tcp_cntxt.rem_ack_num);
+
+                        spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags);
+                        ret = nes_nic_cm_xmit(send_entry->skb, cm_node->netdev);
+                        if (ret != NETDEV_TX_OK) {
+                                cm_packets_bounced++;
+                                atomic_dec(&send_entry->skb->users);
+                                send_entry->retrycount--;
+                                nexttimeout = jiffies + NES_SHORT_TIME;
+                                settimer = 1;
+                                node_done = 1;
+                                spin_lock_irqsave(&cm_node->retrans_list_lock, flags);
+                                continue;
+                        } else {
+                                cm_packets_sent++;
+                        }
+                        spin_lock_irqsave(&cm_node->retrans_list_lock, flags);
+                        list_del(&send_entry->list);
+                        nes_debug(NES_DBG_CM, "Packet Sent: retrans count = %u, retry count = %u.\n",
+                                        send_entry->retranscount, send_entry->retrycount);
+                        if (send_entry->send_retrans) {
+                                send_entry->retranscount--;
+                                send_entry->timetosend = jiffies + NES_RETRY_TIMEOUT;
+                                if (nexttimeout > send_entry->timetosend || !settimer) {
+                                        nexttimeout = send_entry->timetosend;
+                                        settimer = 1;
+                                }
+                                list_add(&send_entry->list, &cm_node->retrans_list);
+                                continue;
+                        } else {
+                                int close_when_complete;
+                                skb = send_entry->skb;
+                                close_when_complete = send_entry->close_when_complete;
+                                spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags);
+                                if (close_when_complete) {
+                                        BUG_ON(atomic_read(&cm_node->ref_count) == 1);
+                                        rem_ref_cm_node(cm_core, cm_node);
+                                }
+                                dev_kfree_skb_any(skb);
+                                kfree(send_entry);
+                                spin_lock_irqsave(&cm_node->retrans_list_lock, flags);
+                                continue;
+                        }
+                }
+                spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags);
+
+                rem_ref_cm_node(cm_core, cm_node);
+
+                spin_lock_irqsave(&cm_core->ht_lock, flags);
+                if (ret != NETDEV_TX_OK)
+                        break;
+        }
+        spin_unlock_irqrestore(&cm_core->ht_lock, flags);
+
+        if (settimer) {
+                if (!timer_pending(&cm_core->tcp_timer)) {
+                        cm_core->tcp_timer.expires  = nexttimeout;
+                        add_timer(&cm_core->tcp_timer);
+                }
+        }
+}
+
+
+/**
+ * send_syn
+ */
+int send_syn(struct nes_cm_node *cm_node, u32 sendack)
+{
+        int ret;
+        int flags = SET_SYN;
+        struct sk_buff *skb;
+        char optionsbuffer[sizeof(struct option_mss) +
+                        sizeof(struct option_windowscale) +
+                        sizeof(struct option_base) + 1];
+
+        int optionssize = 0;
+        /* Sending MSS option */
+        union all_known_options *options;
+
+        if (!cm_node)
+                return -EINVAL;
+
+        options = (union all_known_options *)&optionsbuffer[optionssize];
+        options->as_mss.optionnum = OPTION_NUMBER_MSS;
+        options->as_mss.length = sizeof(struct option_mss);
+        options->as_mss.mss = htons(cm_node->tcp_cntxt.mss);
+        optionssize += sizeof(struct option_mss);
+
+        options = (union all_known_options *)&optionsbuffer[optionssize];
+        options->as_windowscale.optionnum = OPTION_NUMBER_WINDOW_SCALE;
+        options->as_windowscale.length = sizeof(struct option_windowscale);
+        options->as_windowscale.shiftcount = cm_node->tcp_cntxt.rcv_wscale;
+        optionssize += sizeof(struct option_windowscale);
+
+        if (sendack && !(NES_DRV_OPT_SUPRESS_OPTION_BC & nes_drv_opt)
+                        ) {
+                options = (union all_known_options *)&optionsbuffer[optionssize];
+                options->as_base.optionnum = OPTION_NUMBER_WRITE0;
+                options->as_base.length = sizeof(struct option_base);
+                optionssize += sizeof(struct option_base);
+                /* we need the size to be a multiple of 4 */
+                options = (union all_known_options *)&optionsbuffer[optionssize];
+                options->as_end = 1;
+                optionssize += 1;
+                options = (union all_known_options *)&optionsbuffer[optionssize];
+                options->as_end = 1;
+                optionssize += 1;
+        }
+
+        options = (union all_known_options *)&optionsbuffer[optionssize];
+        options->as_end = OPTION_NUMBER_END;
+        optionssize += 1;
+
+        skb = get_free_pkt(cm_node);
+        if (!skb) {
+                nes_debug(NES_DBG_CM, "Failed to get a Free pkt\n");
+                return -1;
+        }
+
+        if (sendack)
+                flags |= SET_ACK;
+
+        form_cm_frame(skb, cm_node, optionsbuffer, optionssize, NULL, 0, flags);
+        ret = schedule_nes_timer(cm_node, skb, NES_TIMER_TYPE_SEND, 1, 0);
+
+        return ret;
+}
+
+
+/**
+ * send_reset
+ */
+int send_reset(struct nes_cm_node *cm_node)
+{
+        int ret;
+        struct sk_buff *skb = get_free_pkt(cm_node);
+        int flags = SET_RST | SET_ACK;
+
+        if (!skb) {
+                nes_debug(NES_DBG_CM, "Failed to get a Free pkt\n");
+                return -1;
+        }
+
+        add_ref_cm_node(cm_node);
+        form_cm_frame(skb, cm_node, NULL, 0, NULL, 0, flags);
+        ret = schedule_nes_timer(cm_node, skb, NES_TIMER_TYPE_SEND, 0, 1);
+
+        return ret;
+}
+
+
+/**
+ * send_ack
+ */
+int send_ack(struct nes_cm_node *cm_node)
+{
+        int ret;
+        struct sk_buff *skb = get_free_pkt(cm_node);
+
+        if (!skb) {
+                nes_debug(NES_DBG_CM, "Failed to get a Free pkt\n");
+                return -1;
+        }
+
+        form_cm_frame(skb, cm_node, NULL, 0, NULL, 0, SET_ACK);
+        ret = schedule_nes_timer(cm_node, skb, NES_TIMER_TYPE_SEND, 0, 0);
+
+        return ret;
+}
+
+
+/**
+ * send_fin
+ */
+int send_fin(struct nes_cm_node *cm_node, struct sk_buff *skb)
+{
+        int ret;
+
+        /* if we didn't get a frame get one */
+        if (!skb)
+                skb = get_free_pkt(cm_node);
+
+        if (!skb) {
+                nes_debug(NES_DBG_CM, "Failed to get a Free pkt\n");
+                return -1;
+        }
+
+        form_cm_frame(skb, cm_node, NULL, 0, NULL, 0, SET_ACK | SET_FIN);
+        ret = schedule_nes_timer(cm_node, skb, NES_TIMER_TYPE_SEND, 1, 0);
+
+        return ret;
+}
+
+
+/**
+ * get_free_pkt
+ */
+struct sk_buff *get_free_pkt(struct nes_cm_node *cm_node)
+{
+        struct sk_buff *skb, *new_skb;
+
+        /* check to see if we need to repopulate the free tx pkt queue */
+        if (skb_queue_len(&cm_node->cm_core->tx_free_list) < NES_CM_FREE_PKT_LO_WATERMARK) {
+                while (skb_queue_len(&cm_node->cm_core->tx_free_list) <
+                                cm_node->cm_core->free_tx_pkt_max) {
+                        /* replace the frame we took, we won't get it back */
+                        new_skb = dev_alloc_skb(cm_node->cm_core->mtu);
+                        BUG_ON(!new_skb);
+                        /* add a replacement frame to the free tx list head */
+                        skb_queue_head(&cm_node->cm_core->tx_free_list, new_skb);
+                }
+        }
+
+        skb = skb_dequeue(&cm_node->cm_core->tx_free_list);
+
+        return skb;
+}
+
+
+/**
+ * make_hashkey - generate hash key from node tuple
+ */
+static inline int make_hashkey(u16 loc_port, nes_addr_t loc_addr, u16 rem_port,
+                nes_addr_t rem_addr)
+{
+        u32 hashkey = 0;
+
+        hashkey = loc_addr + rem_addr + loc_port + rem_port;
+        hashkey = (hashkey % NES_CM_HASHTABLE_SIZE);
+
+        return hashkey;
+}
+
+
+/**
+ * find_node - find a cm node that matches the reference cm node
+ */
+static struct nes_cm_node *find_node(struct nes_cm_core *cm_core,
+                u16 rem_port, nes_addr_t rem_addr, u16 loc_port, nes_addr_t loc_addr)
+{
+        unsigned long flags;
+        u32 hashkey;
+        struct list_head *list_pos;
+        struct list_head *hte;
+        struct nes_cm_node *cm_node;
+
+        /* make a hash index key for this packet */
+        hashkey = make_hashkey(loc_port, loc_addr, rem_port, rem_addr);
+
+        /* get a handle on the hte */
+        hte = &cm_core->connected_nodes;
+
+        nes_debug(NES_DBG_CM, "Searching for an owner node:%x:%x from core %p->%p\n",
+                        loc_addr, loc_port, cm_core, hte);
+
+        /* walk list and find cm_node associated with this session ID */
+        spin_lock_irqsave(&cm_core->ht_lock, flags);
+        list_for_each(list_pos, hte) {
+                cm_node = container_of(list_pos, struct nes_cm_node, list);
+                /* compare quad, return node handle if a match */
+                nes_debug(NES_DBG_CM, "finding node %x:%x =? %x:%x ^ %x:%x =? %x:%x\n",
+                                cm_node->loc_addr, cm_node->loc_port,
+                                loc_addr, loc_port,
+                                cm_node->rem_addr, cm_node->rem_port,
+                                rem_addr, rem_port);
+                if ((cm_node->loc_addr == loc_addr) && (cm_node->loc_port == loc_port) &&
+                                (cm_node->rem_addr == rem_addr) && (cm_node->rem_port == rem_port)) {
+                        add_ref_cm_node(cm_node);
+                        spin_unlock_irqrestore(&cm_core->ht_lock, flags);
+                        return cm_node;
+                }
+        }
+        spin_unlock_irqrestore(&cm_core->ht_lock, flags);
+
+        /* no owner node */
+        return NULL;
+}
+
+
+/**
+ * find_listener - find a cm node listening on this addr-port pair
+ */
+static struct nes_cm_listener *find_listener(struct nes_cm_core *cm_core,
+                nes_addr_t dst_addr, u16 dst_port, enum nes_cm_listener_state listener_state)
+{
+        unsigned long flags;
+        struct list_head *listen_list;
+        struct nes_cm_listener *listen_node;
+
+        /* walk list and find cm_node associated with this session ID */
+        spin_lock_irqsave(&cm_core->listen_list_lock, flags);
+        list_for_each(listen_list, &cm_core->listen_list.list) {
+                listen_node = container_of(listen_list, struct nes_cm_listener, list);
+                /* compare node pair, return node handle if a match */
+                if (((listen_node->loc_addr == dst_addr) ||
+                                listen_node->loc_addr == 0x00000000) &&
+                                (listen_node->loc_port == dst_port) &&
+                                (listener_state & listen_node->listener_state)) {
+                        atomic_inc(&listen_node->ref_count);
+                        spin_unlock_irqrestore(&cm_core->listen_list_lock, flags);
+                        return listen_node;
+                }
+        }
+        spin_unlock_irqrestore(&cm_core->listen_list_lock, flags);
+
+        nes_debug(NES_DBG_CM, "Unable to find listener- %x:%x\n",
+                        dst_addr, dst_port);
+
+        /* no listener */
+        return NULL;
+}
+
+
+/**
+ * add_hte_node - add a cm node to the hash table
+ */
+static int add_hte_node(struct nes_cm_core *cm_core, struct nes_cm_node *cm_node)
+{
+        unsigned long flags;
+        u32 hashkey;
+        struct list_head *hte;
+
+        if (!cm_node || !cm_core)
+                return -EINVAL;
+
+        nes_debug(NES_DBG_CM, "Adding Node to Active Connection HT\n");
+
+        /* first, make an index into our hash table */
+        hashkey = make_hashkey(cm_node->loc_port, cm_node->loc_addr,
+                        cm_node->rem_port, cm_node->rem_addr);
+        cm_node->hashkey = hashkey;
+
+        spin_lock_irqsave(&cm_core->ht_lock, flags);
+
+        /* get a handle on the hash table element (list head for this slot) */
+        hte = &cm_core->connected_nodes;
+        list_add_tail(&cm_node->list, hte);
+        atomic_inc(&cm_core->ht_node_cnt);
+
+        spin_unlock_irqrestore(&cm_core->ht_lock, flags);
+
+        return 0;
+}
+
+
+/**
+ * mini_cm_dec_refcnt_listen
+ */
+static int mini_cm_dec_refcnt_listen(struct nes_cm_core *cm_core,
+                struct nes_cm_listener *listener, int free_hanging_nodes)
+{
+        int ret = 1;
+        unsigned long flags;
+        spin_lock_irqsave(&cm_core->listen_list_lock, flags);
+        if (!atomic_dec_return(&listener->ref_count)) {
+                list_del(&listener->list);
+
+                /* decrement our listen node count */
+                atomic_dec(&cm_core->listen_node_cnt);
+
+                spin_unlock_irqrestore(&cm_core->listen_list_lock, flags);
+
+                if (listener->nesvnic) {
+                        nes_manage_apbvt(listener->nesvnic, listener->loc_port,
+                                        PCI_FUNC(listener->nesvnic->nesdev->pcidev->devfn), NES_MANAGE_APBVT_DEL);
+                }
+
+                nes_debug(NES_DBG_CM, "destroying listener (%p)\n", listener);
+
+                kfree(listener);
+                ret = 0;
+                cm_listens_destroyed++;
+        } else {
+                spin_unlock_irqrestore(&cm_core->listen_list_lock, flags);
+        }
+        if (listener) {
+                if (atomic_read(&listener->pend_accepts_cnt) > 0)
+                        nes_debug(NES_DBG_CM, "destroying listener (%p)"
+                                        " with non-zero pending accepts=%u\n",
+                                        listener, atomic_read(&listener->pend_accepts_cnt));
+        }
+
+        return ret;
+}
+
+
+/**
+ * mini_cm_del_listen
+ */
+static int mini_cm_del_listen(struct nes_cm_core *cm_core,
+                struct nes_cm_listener *listener)
+{
+        listener->listener_state = NES_CM_LISTENER_PASSIVE_STATE;
+        listener->cm_id = NULL; /* going to be destroyed pretty soon */
+        return mini_cm_dec_refcnt_listen(cm_core, listener, 1);
+}
+
+
+/**
+ * mini_cm_accelerated
+ */
+static inline int mini_cm_accelerated(struct nes_cm_core *cm_core,
+                struct nes_cm_node *cm_node)
+{
+        u32 was_timer_set;
+        cm_node->accelerated = 1;
+
+        if (cm_node->accept_pend) {
+                BUG_ON(!cm_node->listener);
+                atomic_dec(&cm_node->listener->pend_accepts_cnt);
+                BUG_ON(atomic_read(&cm_node->listener->pend_accepts_cnt) < 0);
+        }
+
+        was_timer_set = timer_pending(&cm_core->tcp_timer);
+        if (!was_timer_set) {
+                cm_core->tcp_timer.expires = jiffies + NES_SHORT_TIME;
+                add_timer(&cm_core->tcp_timer);
+        }
+
+        return 0;
+}
+
+
+/**
+ * nes_addr_send_arp
+ */
+static void nes_addr_send_arp(u32 dst_ip)
+{
+        struct rtable *rt;
+        struct flowi fl;
+
+        memset(&fl, 0, sizeof fl);
+        fl.nl_u.ip4_u.daddr = htonl(dst_ip);
+        if (ip_route_output_key(&init_net, &rt, &fl)) {
+                printk("%s: ip_route_output_key failed for 0x%08X\n",
+                                __FUNCTION__, dst_ip);
+                return;
+        }
+
+        neigh_event_send(rt->u.dst.neighbour, NULL);
+        ip_rt_put(rt);
+}
+
+
+/**
+ * make_cm_node - create a new instance of a cm node
+ */
+static struct nes_cm_node *make_cm_node(struct nes_cm_core *cm_core,
+                struct nes_vnic *nesvnic, struct nes_cm_info *cm_info,
+                struct nes_cm_listener *listener)
+{
+        struct nes_cm_node *cm_node;
+        struct timespec ts;
+        int arpindex = 0;
+        struct nes_device *nesdev;
+        struct nes_adapter *nesadapter;
+
+        /* create an hte and cm_node for this instance */
+        cm_node = kzalloc(sizeof(*cm_node), GFP_ATOMIC);
+        if (!cm_node)
+                return NULL;
+
+        /* set our node specific transport info */
+        cm_node->loc_addr = cm_info->loc_addr;
+        cm_node->rem_addr = cm_info->rem_addr;
+        cm_node->loc_port = cm_info->loc_port;
+        cm_node->rem_port = cm_info->rem_port;
+        cm_node->send_write0 = send_first;
+        nes_debug(NES_DBG_CM, "Make node addresses : loc = %x:%x, rem = %x:%x\n",
+                        cm_node->loc_addr, cm_node->loc_port, cm_node->rem_addr, cm_node->rem_port);
+        cm_node->listener = listener;
+        cm_node->netdev = nesvnic->netdev;
+        cm_node->cm_id = cm_info->cm_id;
+        memcpy(cm_node->loc_mac, nesvnic->netdev->dev_addr, ETH_ALEN);
+
+        nes_debug(NES_DBG_CM, "listener=%p, cm_id=%p\n",
+                        cm_node->listener, cm_node->cm_id);
+
+        INIT_LIST_HEAD(&cm_node->retrans_list);
+        spin_lock_init(&cm_node->retrans_list_lock);
+        INIT_LIST_HEAD(&cm_node->recv_list);
+        spin_lock_init(&cm_node->recv_list_lock);
+
+        cm_node->loopbackpartner = NULL;
+        atomic_set(&cm_node->ref_count, 1);
+        /* associate our parent CM core */
+        cm_node->cm_core = cm_core;
+        cm_node->tcp_cntxt.loc_id = NES_CM_DEF_LOCAL_ID;
+        cm_node->tcp_cntxt.rcv_wscale = NES_CM_DEFAULT_RCV_WND_SCALE;
+        cm_node->tcp_cntxt.rcv_wnd = NES_CM_DEFAULT_RCV_WND_SCALED >>
+                        NES_CM_DEFAULT_RCV_WND_SCALE;
+        ts = current_kernel_time();
+        cm_node->tcp_cntxt.loc_seq_num = htonl(ts.tv_nsec);
+        cm_node->tcp_cntxt.mss = nesvnic->max_frame_size - sizeof(struct iphdr) -
+                        sizeof(struct tcphdr) - ETH_HLEN;
+        cm_node->tcp_cntxt.rcv_nxt = 0;
+        /* get a unique session ID , add thread_id to an upcounter to handle race */
+        atomic_inc(&cm_core->node_cnt);
+        atomic_inc(&cm_core->session_id);
+        cm_node->session_id = (u32)(atomic_read(&cm_core->session_id) + current->tgid);
+        cm_node->conn_type = cm_info->conn_type;
+        cm_node->apbvt_set = 0;
+        cm_node->accept_pend = 0;
+
+        cm_node->nesvnic = nesvnic;
+        /* get some device handles, for arp lookup */
+        nesdev = nesvnic->nesdev;
+        nesadapter = nesdev->nesadapter;
+
+        cm_node->loopbackpartner = NULL;
+        /* get the mac addr for the remote node */
+        arpindex = nes_arp_table(nesdev, cm_node->rem_addr, NULL, NES_ARP_RESOLVE);
+        if (arpindex < 0) {
+                kfree(cm_node);
+                nes_addr_send_arp(cm_info->rem_addr);
+                return NULL;
+        }
+
+        /* copy the mac addr to node context */
+        memcpy(cm_node->rem_mac, nesadapter->arp_table[arpindex].mac_addr, ETH_ALEN);
+        nes_debug(NES_DBG_CM, "Remote mac addr from arp table:%02x,"
+                        " %02x, %02x, %02x, %02x, %02x\n",
+                        cm_node->rem_mac[0], cm_node->rem_mac[1],
+                        cm_node->rem_mac[2], cm_node->rem_mac[3],
+                        cm_node->rem_mac[4], cm_node->rem_mac[5]);
+
+        add_hte_node(cm_core, cm_node);
+        atomic_inc(&cm_nodes_created);
+
+        return cm_node;
+}
+
+
+/**
+ * add_ref_cm_node - destroy an instance of a cm node
+ */
+static int add_ref_cm_node(struct nes_cm_node *cm_node)
+{
+        atomic_inc(&cm_node->ref_count);
+        return 0;
+}
+
+
+/**
+ * rem_ref_cm_node - destroy an instance of a cm node
+ */
+static int rem_ref_cm_node(struct nes_cm_core *cm_core,
+                struct nes_cm_node *cm_node)
+{
+        unsigned long flags, qplockflags;
+        struct nes_timer_entry *send_entry;
+        struct nes_timer_entry *recv_entry;
+        struct iw_cm_id *cm_id;
+        struct list_head *list_core, *list_node_temp;
+        struct nes_qp *nesqp;
+
+        if (!cm_node)
+                return -EINVAL;
+
+        spin_lock_irqsave(&cm_node->cm_core->ht_lock, flags);
+        if (atomic_dec_return(&cm_node->ref_count)) {
+                spin_unlock_irqrestore(&cm_node->cm_core->ht_lock, flags);
+                return 0;
+        }
+        list_del(&cm_node->list);
+        atomic_dec(&cm_core->ht_node_cnt);
+        spin_unlock_irqrestore(&cm_node->cm_core->ht_lock, flags);
+
+        /* if the node is destroyed before connection was accelerated */
+        if (!cm_node->accelerated && cm_node->accept_pend) {
+                BUG_ON(!cm_node->listener);
+                atomic_dec(&cm_node->listener->pend_accepts_cnt);
+                BUG_ON(atomic_read(&cm_node->listener->pend_accepts_cnt) < 0);
+        }
+
+        spin_lock_irqsave(&cm_node->retrans_list_lock, flags);
+        list_for_each_safe(list_core, list_node_temp, &cm_node->retrans_list) {
+                send_entry = container_of(list_core, struct nes_timer_entry, list);
+                list_del(&send_entry->list);
+                spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags);
+                dev_kfree_skb_any(send_entry->skb);
+                kfree(send_entry);
+                spin_lock_irqsave(&cm_node->retrans_list_lock, flags);
+                continue;
+        }
+        spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags);
+
+        spin_lock_irqsave(&cm_node->recv_list_lock, flags);
+        list_for_each_safe(list_core, list_node_temp, &cm_node->recv_list) {
+                recv_entry = container_of(list_core, struct nes_timer_entry, list);
+                list_del(&recv_entry->list);
+                cm_id = cm_node->cm_id;
+                spin_unlock_irqrestore(&cm_node->recv_list_lock, flags);
+                if (recv_entry->type == NES_TIMER_TYPE_CLOSE) {
+                        nesqp = (struct nes_qp *)recv_entry->skb;
+                        spin_lock_irqsave(&nesqp->lock, qplockflags);
+                        if (nesqp->cm_id) {
+                                nes_debug(NES_DBG_CM, "QP%u: cm_id = %p: ****** HIT A NES_TIMER_TYPE_CLOSE"
+                                                " with something to do!!! ******\n",
+                                                nesqp->hwqp.qp_id, cm_id);
+                                nesqp->hw_tcp_state = NES_AEQE_TCP_STATE_CLOSED;
+                                nesqp->last_aeq = NES_AEQE_AEID_RESET_SENT;
+                                nesqp->ibqp_state = IB_QPS_ERR;
+                                spin_unlock_irqrestore(&nesqp->lock, qplockflags);
+                                nes_cm_disconn(nesqp);
+                        } else {
+                                spin_unlock_irqrestore(&nesqp->lock, qplockflags);
+                                nes_debug(NES_DBG_CM, "QP%u: cm_id = %p: ****** HIT A NES_TIMER_TYPE_CLOSE"
+                                                " with nothing to do!!! ******\n",
+                                                nesqp->hwqp.qp_id, cm_id);
+                                nes_rem_ref(&nesqp->ibqp);
+                        }
+                        cm_id->rem_ref(cm_id);
+                } else if (recv_entry->type == NES_TIMER_TYPE_RECV) {
+                        dev_kfree_skb_any(recv_entry->skb);
+                }
+                kfree(recv_entry);
+                spin_lock_irqsave(&cm_node->recv_list_lock, flags);
+        }
+        spin_unlock_irqrestore(&cm_node->recv_list_lock, flags);
+
+        if (cm_node->listener) {
+                mini_cm_dec_refcnt_listen(cm_core, cm_node->listener, 0);
+        } else {
+                if (cm_node->apbvt_set && cm_node->nesvnic) {
+                        nes_manage_apbvt(cm_node->nesvnic, cm_node->loc_port,
+                                        PCI_FUNC(cm_node->nesvnic->nesdev->pcidev->devfn),
+                                        NES_MANAGE_APBVT_DEL);
+                }
+        }
+
+        kfree(cm_node);
+        atomic_dec(&cm_core->node_cnt);
+        atomic_inc(&cm_nodes_destroyed);
+
+        return 0;
+}
+
+
+/**
+ * process_options
+ */
+static int process_options(struct nes_cm_node *cm_node, u8 *optionsloc, u32 optionsize, u32 syn_packet)
+{
+        u32 tmp;
+        u32 offset = 0;
+        union all_known_options *all_options;
+        char got_mss_option = 0;
+
+        while (offset < optionsize) {
+                all_options = (union all_known_options *)(optionsloc + offset);
+                switch (all_options->as_base.optionnum) {
+                        case OPTION_NUMBER_END:
+                                offset = optionsize;
+                                break;
+                        case OPTION_NUMBER_NONE:
+                                offset += 1;
+                                continue;
+                        case OPTION_NUMBER_MSS:
+                                nes_debug(NES_DBG_CM, "%s: MSS Length: %d Offset: %d Size: %d\n",
+                                                __FUNCTION__,
+                                                all_options->as_mss.length, offset, optionsize);
+                                got_mss_option = 1;
+                                if (all_options->as_mss.length != 4) {
+                                        return 1;
+                                } else {
+                                        tmp = ntohs(all_options->as_mss.mss);
+                                        if (tmp > 0 && tmp < cm_node->tcp_cntxt.mss)
+                                                cm_node->tcp_cntxt.mss = tmp;
+                                }
+                                break;
+                        case OPTION_NUMBER_WINDOW_SCALE:
+                                cm_node->tcp_cntxt.snd_wscale = all_options->as_windowscale.shiftcount;
+                                break;
+                        case OPTION_NUMBER_WRITE0:
+                                cm_node->send_write0 = 1;
+                                break;
+                        default:
+                                nes_debug(NES_DBG_CM, "TCP Option not understood: %x\n",
+                                                all_options->as_base.optionnum);
+                                break;
+                }
+                offset += all_options->as_base.length;
+        }
+        if ((!got_mss_option) && (syn_packet))
+                cm_node->tcp_cntxt.mss = NES_CM_DEFAULT_MSS;
+        return 0;
+}
+
+
+/**
+ * process_packet
+ */
+int process_packet(struct nes_cm_node *cm_node, struct sk_buff *skb,
+                struct nes_cm_core *cm_core)
+{
+        int optionsize;
+        int datasize;
+        int ret = 0;
+        struct tcphdr *tcph = tcp_hdr(skb);
+        u32 inc_sequence;
+        if (cm_node->state == NES_CM_STATE_SYN_SENT && tcph->syn) {
+                inc_sequence = ntohl(tcph->seq);
+                cm_node->tcp_cntxt.rcv_nxt = inc_sequence;
+        }
+
+        if ((!tcph) || (cm_node->state == NES_CM_STATE_TSA)) {
+                BUG_ON(!tcph);
+                atomic_inc(&cm_accel_dropped_pkts);
+                return -1;
+        }
+
+        if (tcph->rst) {
+                atomic_inc(&cm_resets_recvd);
+                nes_debug(NES_DBG_CM, "Received Reset, cm_node = %p, state = %u. refcnt=%d\n",
+                                cm_node, cm_node->state, atomic_read(&cm_node->ref_count));
+                switch (cm_node->state) {
+                        case NES_CM_STATE_LISTENING:
+                                rem_ref_cm_node(cm_core, cm_node);
+                                break;
+                        case NES_CM_STATE_TSA:
+                        case NES_CM_STATE_CLOSED:
+                                break;
+                        case NES_CM_STATE_SYN_RCVD:
+                                        nes_debug(NES_DBG_CM, "Received a reset for local 0x%08X:%04X,"
+                                                        " remote 0x%08X:%04X, node state = %u\n",
+                                                        cm_node->loc_addr, cm_node->loc_port,
+                                                        cm_node->rem_addr, cm_node->rem_port,
+                                                        cm_node->state);
+                                rem_ref_cm_node(cm_core, cm_node);
+                                break;
+                        case NES_CM_STATE_ONE_SIDE_ESTABLISHED:
+                        case NES_CM_STATE_ESTABLISHED:
+                        case NES_CM_STATE_MPAREQ_SENT:
+                        default:
+                                        nes_debug(NES_DBG_CM, "Received a reset for local 0x%08X:%04X,"
+                                                        " remote 0x%08X:%04X, node state = %u refcnt=%d\n",
+                                                        cm_node->loc_addr, cm_node->loc_port,
+                                                        cm_node->rem_addr, cm_node->rem_port,
+                                                        cm_node->state, atomic_read(&cm_node->ref_count));
+                                // create event
+                                cm_node->state = NES_CM_STATE_CLOSED;
+
+                                create_event(cm_node, NES_CM_EVENT_ABORTED);
+                                break;
+
+                }
+                return -1;
+        }
+
+        optionsize = (tcph->doff << 2) - sizeof(struct tcphdr);
+
+        skb_pull(skb, ip_hdr(skb)->ihl << 2);
+        skb_pull(skb, tcph->doff << 2);
+
+        datasize = skb->len;
+        inc_sequence = ntohl(tcph->seq);
+        nes_debug(NES_DBG_CM, "datasize = %u, sequence = 0x%08X, ack_seq = 0x%08X,"
+                        " rcv_nxt = 0x%08X Flags: %s %s.\n",
+                        datasize, inc_sequence, ntohl(tcph->ack_seq),
+                        cm_node->tcp_cntxt.rcv_nxt, (tcph->syn ? "SYN":""),
+                        (tcph->ack ? "ACK":""));
+
+        if (!tcph->syn && (inc_sequence != cm_node->tcp_cntxt.rcv_nxt)
+                ) {
+                nes_debug(NES_DBG_CM, "dropping packet, datasize = %u, sequence = 0x%08X,"
+                                " ack_seq = 0x%08X, rcv_nxt = 0x%08X Flags: %s.\n",
+                                datasize, inc_sequence, ntohl(tcph->ack_seq),
+                                cm_node->tcp_cntxt.rcv_nxt, (tcph->ack ? "ACK":""));
+                if (cm_node->state == NES_CM_STATE_LISTENING) {
+                        rem_ref_cm_node(cm_core, cm_node);
+                }
+                return -1;
+        }
+
+                cm_node->tcp_cntxt.rcv_nxt = inc_sequence + datasize;
+
+
+        if (optionsize) {
+                u8 *optionsloc = (u8 *)&tcph[1];
+                if (process_options(cm_node, optionsloc, optionsize, (u32)tcph->syn)) {
+                        nes_debug(NES_DBG_CM, "%s: Node %p, Sending RESET\n", __FUNCTION__, cm_node);
+                        send_reset(cm_node);
+                        if (cm_node->state != NES_CM_STATE_SYN_SENT)
+                        rem_ref_cm_node(cm_core, cm_node);
+                        return 0;
+                }
+        } else if (tcph->syn)
+                cm_node->tcp_cntxt.mss = NES_CM_DEFAULT_MSS;
+
+        cm_node->tcp_cntxt.snd_wnd = ntohs(tcph->window) <<
+                        cm_node->tcp_cntxt.snd_wscale;
+
+        if (cm_node->tcp_cntxt.snd_wnd > cm_node->tcp_cntxt.max_snd_wnd) {
+                cm_node->tcp_cntxt.max_snd_wnd = cm_node->tcp_cntxt.snd_wnd;
+        }
+
+        if (tcph->ack) {
+                cm_node->tcp_cntxt.rem_ack_num = ntohl(tcph->ack_seq);
+                switch (cm_node->state) {
+                        case NES_CM_STATE_SYN_RCVD:
+                        case NES_CM_STATE_SYN_SENT:
+                                /* read and stash current sequence number */
+                                if (cm_node->tcp_cntxt.rem_ack_num != cm_node->tcp_cntxt.loc_seq_num) {
+                                        nes_debug(NES_DBG_CM, "ERROR - cm_node->tcp_cntxt.rem_ack_num !="
+                                                        " cm_node->tcp_cntxt.loc_seq_num\n");
+                                        send_reset(cm_node);
+                                        return 0;
+                                }
+                                if (cm_node->state == NES_CM_STATE_SYN_SENT)
+                                        cm_node->state = NES_CM_STATE_ONE_SIDE_ESTABLISHED;
+                                else {
+                                                cm_node->state = NES_CM_STATE_ESTABLISHED;
+                                }
+                                break;
+                        case NES_CM_STATE_LAST_ACK:
+                                cm_node->state = NES_CM_STATE_CLOSED;
+                                break;
+                        case NES_CM_STATE_FIN_WAIT1:
+                                cm_node->state = NES_CM_STATE_FIN_WAIT2;
+                                break;
+                        case NES_CM_STATE_CLOSING:
+                                cm_node->state = NES_CM_STATE_TIME_WAIT;
+                                /* need to schedule this to happen in 2MSL timeouts */
+                                cm_node->state = NES_CM_STATE_CLOSED;
+                                break;
+                        case NES_CM_STATE_ONE_SIDE_ESTABLISHED:
+                        case NES_CM_STATE_ESTABLISHED:
+                        case NES_CM_STATE_MPAREQ_SENT:
+                        case NES_CM_STATE_CLOSE_WAIT:
+                        case NES_CM_STATE_TIME_WAIT:
+                        case NES_CM_STATE_CLOSED:
+                                break;
+                        case NES_CM_STATE_LISTENING:
+                                nes_debug(NES_DBG_CM, "Received an ACK on a listening port (SYN %d)\n", tcph->syn);
+                                cm_node->tcp_cntxt.loc_seq_num = ntohl(tcph->ack_seq);
+                                send_reset(cm_node);
+                                /* send_reset bumps refcount, this should have been a new node */
+                                rem_ref_cm_node(cm_core, cm_node);
+                                return -1;
+                                break;
+                        case NES_CM_STATE_TSA:
+                                nes_debug(NES_DBG_CM, "Received a packet with the ack bit set while in TSA state\n");
+                                break;
+                        case NES_CM_STATE_UNKNOWN:
+                        case NES_CM_STATE_INITED:
+                        case NES_CM_STATE_ACCEPTING:
+                        case NES_CM_STATE_FIN_WAIT2:
+                        default:
+                                nes_debug(NES_DBG_CM, "Received ack from unknown state: %x\n",
+                                                cm_node->state);
+                                send_reset(cm_node);
+                                break;
+                }
+        }
+
+        if (tcph->syn) {
+                if (cm_node->state == NES_CM_STATE_LISTENING) {
+                        /* do not exceed backlog */
+                        atomic_inc(&cm_node->listener->pend_accepts_cnt);
+                        if (atomic_read(&cm_node->listener->pend_accepts_cnt) >
+                                        cm_node->listener->backlog) {
+                                nes_debug(NES_DBG_CM, "drop syn due to backlog pressure \n");
+                                cm_backlog_drops++;
+                                atomic_dec(&cm_node->listener->pend_accepts_cnt);
+                                rem_ref_cm_node(cm_core, cm_node);
+                                return 0;
+                        }
+                        cm_node->accept_pend = 1;
+
+                }
+                if (datasize == 0)
+                        cm_node->tcp_cntxt.rcv_nxt ++;
+
+                if (cm_node->state == NES_CM_STATE_LISTENING) {
+                        cm_node->state = NES_CM_STATE_SYN_RCVD;
+                        send_syn(cm_node, 1);
+                }
+                if (cm_node->state == NES_CM_STATE_ONE_SIDE_ESTABLISHED) {
+                        cm_node->state = NES_CM_STATE_ESTABLISHED;
+                        /* send final handshake ACK */
+                        ret = send_ack(cm_node);
+                        if (ret < 0)
+                                return ret;
+
+                                cm_node->state = NES_CM_STATE_MPAREQ_SENT;
+                                ret = send_mpa_request(cm_node);
+                                if (ret < 0)
+                                        return ret;
+                }
+        }
+
+        if (tcph->fin) {
+                cm_node->tcp_cntxt.rcv_nxt++;
+                switch (cm_node->state) {
+                        case NES_CM_STATE_SYN_RCVD:
+                        case NES_CM_STATE_SYN_SENT:
+                        case NES_CM_STATE_ONE_SIDE_ESTABLISHED:
+                        case NES_CM_STATE_ESTABLISHED:
+                        case NES_CM_STATE_ACCEPTING:
+                        case NES_CM_STATE_MPAREQ_SENT:
+                                cm_node->state = NES_CM_STATE_CLOSE_WAIT;
+                                cm_node->state = NES_CM_STATE_LAST_ACK;
+                                ret = send_fin(cm_node, NULL);
+                                break;
+                        case NES_CM_STATE_FIN_WAIT1:
+                                cm_node->state = NES_CM_STATE_CLOSING;
+                                ret = send_ack(cm_node);
+                                break;
+                        case NES_CM_STATE_FIN_WAIT2:
+                                cm_node->state = NES_CM_STATE_TIME_WAIT;
+                                cm_node->tcp_cntxt.loc_seq_num ++;
+                                ret = send_ack(cm_node);
+                                /* need to schedule this to happen in 2MSL timeouts */
+                                cm_node->state = NES_CM_STATE_CLOSED;
+                                break;
+                        case NES_CM_STATE_CLOSE_WAIT:
+                        case NES_CM_STATE_LAST_ACK:
+                        case NES_CM_STATE_CLOSING:
+                        case NES_CM_STATE_TSA:
+                        default:
+                                nes_debug(NES_DBG_CM, "Received a fin while in %x state\n",
+                                                cm_node->state);
+                                ret = -EINVAL;
+                                break;
+                }
+        }
+
+        if (datasize) {
+                u8 *dataloc = skb->data;
+                /* figure out what state we are in and handle transition to next state */
+                switch (cm_node->state) {
+                        case NES_CM_STATE_LISTENING:
+                        case NES_CM_STATE_SYN_RCVD:
+                        case NES_CM_STATE_SYN_SENT:
+                        case NES_CM_STATE_FIN_WAIT1:
+                        case NES_CM_STATE_FIN_WAIT2:
+                        case NES_CM_STATE_CLOSE_WAIT:
+                        case NES_CM_STATE_LAST_ACK:
+                        case NES_CM_STATE_CLOSING:
+                                break;
+                        case  NES_CM_STATE_MPAREQ_SENT:
+                                /* recv the mpa res frame, ret=frame len (incl priv data) */
+                                ret = parse_mpa(cm_node, dataloc, datasize);
+                                if (ret < 0)
+                                        break;
+                                /* set the req frame payload len in skb */
+                                /* we are done handling this state, set node to a TSA state */
+                                cm_node->state = NES_CM_STATE_TSA;
+                                send_ack(cm_node);
+                                create_event(cm_node, NES_CM_EVENT_CONNECTED);
+                                break;
+
+                        case  NES_CM_STATE_ESTABLISHED:
+                                /* we are expecting an MPA req frame */
+                                ret = parse_mpa(cm_node, dataloc, datasize);
+                                if (ret < 0) {
+                                        break;
+                                }
+                                cm_node->state = NES_CM_STATE_TSA;
+                                send_ack(cm_node);
+                                /* we got a valid MPA request, create an event */
+                                create_event(cm_node, NES_CM_EVENT_MPA_REQ);
+                                break;
+                        case  NES_CM_STATE_TSA:
+                                handle_exception_pkt(cm_node, skb);
+                                break;
+                        case NES_CM_STATE_UNKNOWN:
+                        case NES_CM_STATE_INITED:
+                        default:
+                                ret = -1;
+                }
+        }
+
+        return ret;
+}
+
+
+/**
+ * mini_cm_listen - create a listen node with params
+ */
+static struct nes_cm_listener *mini_cm_listen(struct nes_cm_core *cm_core,
+                struct nes_vnic *nesvnic, struct nes_cm_info *cm_info)
+{
+        struct nes_cm_listener *listener;
+        unsigned long flags;
+
+        nes_debug(NES_DBG_CM, "Search for 0x%08x : 0x%04x\n",
+                cm_info->loc_addr, cm_info->loc_port);
+
+        /* cannot have multiple matching listeners */
+        listener = find_listener(cm_core, htonl(cm_info->loc_addr),
+                        htons(cm_info->loc_port), NES_CM_LISTENER_EITHER_STATE);
+        if (listener && listener->listener_state == NES_CM_LISTENER_ACTIVE_STATE) {
+                /* find automatically incs ref count ??? */
+                atomic_dec(&listener->ref_count);
+                nes_debug(NES_DBG_CM, "Not creating listener since it already exists\n");
+                return NULL;
+        }
+
+        if (!listener) {
+                /* create a CM listen node (1/2 node to compare incoming traffic to) */
+                listener = kzalloc(sizeof(*listener), GFP_ATOMIC);
+                if (!listener) {
+                        nes_debug(NES_DBG_CM, "Not creating listener memory allocation failed\n");
+                        return NULL;
+                }
+
+                memset(listener, 0, sizeof(struct nes_cm_listener));
+                listener->loc_addr = htonl(cm_info->loc_addr);
+                listener->loc_port = htons(cm_info->loc_port);
+                listener->reused_node = 0;
+
+                atomic_set(&listener->ref_count, 1);
+        }
+        /* pasive case */
+        /* find already inc'ed the ref count */
+        else {
+                listener->reused_node = 1;
+        }
+
+        listener->cm_id = cm_info->cm_id;
+        atomic_set(&listener->pend_accepts_cnt, 0);
+        listener->cm_core = cm_core;
+        listener->nesvnic = nesvnic;
+        atomic_inc(&cm_core->node_cnt);
+        atomic_inc(&cm_core->session_id);
+
+        listener->session_id = (u32)(atomic_read(&cm_core->session_id) + current->tgid);
+        listener->conn_type = cm_info->conn_type;
+        listener->backlog = cm_info->backlog;
+        listener->listener_state = NES_CM_LISTENER_ACTIVE_STATE;
+
+        if (!listener->reused_node) {
+                spin_lock_irqsave(&cm_core->listen_list_lock, flags);
+                list_add(&listener->list, &cm_core->listen_list.list);
+                spin_unlock_irqrestore(&cm_core->listen_list_lock, flags);
+                atomic_inc(&cm_core->listen_node_cnt);
+        }
+
+        nes_debug(NES_DBG_CM, "Api - listen(): addr=0x%08X, port=0x%04x,"
+                        " listener = %p, backlog = %d, cm_id = %p.\n",
+                        cm_info->loc_addr, cm_info->loc_port,
+                        listener, listener->backlog, listener->cm_id);
+
+        return listener;
+}
+
+
+/**
+ * mini_cm_connect - make a connection node with params
+ */
+struct nes_cm_node *mini_cm_connect(struct nes_cm_core *cm_core,
+                struct nes_vnic *nesvnic, struct ietf_mpa_frame *mpa_frame,
+                struct nes_cm_info *cm_info)
+{
+        int ret = 0;
+        struct nes_cm_node *cm_node;
+        struct nes_cm_listener *loopbackremotelistener;
+        struct nes_cm_node *loopbackremotenode;
+        struct nes_cm_info loopback_cm_info;
+
+        u16 mpa_frame_size = sizeof(struct ietf_mpa_frame) +
+                        ntohs(mpa_frame->priv_data_len);
+
+        cm_info->loc_addr = htonl(cm_info->loc_addr);
+        cm_info->rem_addr = htonl(cm_info->rem_addr);
+        cm_info->loc_port = htons(cm_info->loc_port);
+        cm_info->rem_port = htons(cm_info->rem_port);
+
+        /* create a CM connection node */
+        cm_node = make_cm_node(cm_core, nesvnic, cm_info, NULL);
+        if (!cm_node)
+                return NULL;
+
+        // set our node side to client (active) side
+        cm_node->tcp_cntxt.client = 1;
+        cm_node->tcp_cntxt.rcv_wscale = NES_CM_DEFAULT_RCV_WND_SCALE;
+
+        if (cm_info->loc_addr == cm_info->rem_addr) {
+                loopbackremotelistener = find_listener(cm_core, cm_node->rem_addr,
+                                cm_node->rem_port, NES_CM_LISTENER_ACTIVE_STATE);
+                if (loopbackremotelistener == NULL) {
+                        create_event(cm_node, NES_CM_EVENT_ABORTED);
+                } else {
+                        atomic_inc(&cm_loopbacks);
+                        loopback_cm_info = *cm_info;
+                        loopback_cm_info.loc_port = cm_info->rem_port;
+                        loopback_cm_info.rem_port = cm_info->loc_port;
+                        loopback_cm_info.cm_id = loopbackremotelistener->cm_id;
+                        loopbackremotenode = make_cm_node(cm_core, nesvnic, &loopback_cm_info,
+                                        loopbackremotelistener);
+                        loopbackremotenode->loopbackpartner = cm_node;
+                        loopbackremotenode->tcp_cntxt.rcv_wscale = NES_CM_DEFAULT_RCV_WND_SCALE;
+                        cm_node->loopbackpartner = loopbackremotenode;
+                        memcpy(loopbackremotenode->mpa_frame_buf, &mpa_frame->priv_data,
+                                        mpa_frame_size);
+                        loopbackremotenode->mpa_frame_size = mpa_frame_size -
+                                        sizeof(struct ietf_mpa_frame);
+
+                        // we are done handling this state, set node to a TSA state
+                        cm_node->state = NES_CM_STATE_TSA;
+                        cm_node->tcp_cntxt.rcv_nxt = loopbackremotenode->tcp_cntxt.loc_seq_num;
+                        loopbackremotenode->tcp_cntxt.rcv_nxt = cm_node->tcp_cntxt.loc_seq_num;
+                        cm_node->tcp_cntxt.max_snd_wnd = loopbackremotenode->tcp_cntxt.rcv_wnd;
+                        loopbackremotenode->tcp_cntxt.max_snd_wnd = cm_node->tcp_cntxt.rcv_wnd;
+                        cm_node->tcp_cntxt.snd_wnd = loopbackremotenode->tcp_cntxt.rcv_wnd;
+                        loopbackremotenode->tcp_cntxt.snd_wnd = cm_node->tcp_cntxt.rcv_wnd;
+                        cm_node->tcp_cntxt.snd_wscale = loopbackremotenode->tcp_cntxt.rcv_wscale;
+                        loopbackremotenode->tcp_cntxt.snd_wscale = cm_node->tcp_cntxt.rcv_wscale;
+
+                        create_event(loopbackremotenode, NES_CM_EVENT_MPA_REQ);
+                }
+                return cm_node;
+        }
+
+        /* set our node side to client (active) side */
+        cm_node->tcp_cntxt.client = 1;
+        /* init our MPA frame ptr */
+        memcpy(&cm_node->mpa_frame, mpa_frame, mpa_frame_size);
+        cm_node->mpa_frame_size = mpa_frame_size;
+
+        /* send a syn and goto syn sent state */
+        cm_node->state = NES_CM_STATE_SYN_SENT;
+        ret = send_syn(cm_node, 0);
+
+        nes_debug(NES_DBG_CM, "Api - connect(): dest addr=0x%08X, port=0x%04x,"
+                        " cm_node=%p, cm_id = %p.\n",
+                        cm_node->rem_addr, cm_node->rem_port, cm_node, cm_node->cm_id);
+
+        return cm_node;
+}
+
+
+/**
+ * mini_cm_accept - accept a connection
+ * This function is never called
+ */
+int mini_cm_accept(struct nes_cm_core *cm_core, struct ietf_mpa_frame *mpa_frame,
+                struct nes_cm_node *cm_node)
+{
+        return 0;
+}
+
+
+/**
+ * mini_cm_reject - reject and teardown a connection
+ */
+int mini_cm_reject(struct nes_cm_core *cm_core,
+                struct ietf_mpa_frame *mpa_frame,
+                struct nes_cm_node *cm_node)
+{
+        int ret = 0;
+        struct sk_buff *skb;
+        u16 mpa_frame_size = sizeof(struct ietf_mpa_frame) +
+                        ntohs(mpa_frame->priv_data_len);
+
+        skb = get_free_pkt(cm_node);
+        if (!skb) {
+                nes_debug(NES_DBG_CM, "Failed to get a Free pkt\n");
+                return -1;
+        }
+
+        /* send an MPA Request frame */
+        form_cm_frame(skb, cm_node, NULL, 0, mpa_frame, mpa_frame_size, SET_ACK | SET_FIN);
+        ret = schedule_nes_timer(cm_node, skb, NES_TIMER_TYPE_SEND, 1, 0);
+
+        cm_node->state = NES_CM_STATE_CLOSED;
+        ret = send_fin(cm_node, NULL);
+
+        if (ret < 0) {
+                printk(KERN_INFO PFX "failed to send MPA Reply (reject)\n");
+                return ret;
+        }
+
+        return ret;
+}
+
+
+/**
+ * mini_cm_close
+ */
+int mini_cm_close(struct nes_cm_core *cm_core, struct nes_cm_node *cm_node)
+{
+        int ret = 0;
+
+        if (!cm_core || !cm_node)
+                return -EINVAL;
+
+        switch (cm_node->state) {
+                /* if passed in node is null, create a reference key node for node search */
+                /* check if we found an owner node for this pkt */
+                case NES_CM_STATE_SYN_RCVD:
+                case NES_CM_STATE_SYN_SENT:
+                case NES_CM_STATE_ONE_SIDE_ESTABLISHED:
+                case NES_CM_STATE_ESTABLISHED:
+                case NES_CM_STATE_ACCEPTING:
+                case NES_CM_STATE_MPAREQ_SENT:
+                        cm_node->state = NES_CM_STATE_FIN_WAIT1;
+                        send_fin(cm_node, NULL);
+                        break;
+                case NES_CM_STATE_CLOSE_WAIT:
+                        cm_node->state = NES_CM_STATE_LAST_ACK;
+                        send_fin(cm_node, NULL);
+                        break;
+                case NES_CM_STATE_FIN_WAIT1:
+                case NES_CM_STATE_FIN_WAIT2:
+                case NES_CM_STATE_LAST_ACK:
+                case NES_CM_STATE_TIME_WAIT:
+                case NES_CM_STATE_CLOSING:
+                        ret = -1;
+                        break;
+                case NES_CM_STATE_LISTENING:
+                case NES_CM_STATE_UNKNOWN:
+                case NES_CM_STATE_INITED:
+                case NES_CM_STATE_CLOSED:
+                case NES_CM_STATE_TSA:
+                        ret = rem_ref_cm_node(cm_core, cm_node);
+                        break;
+        }
+        cm_node->cm_id = NULL;
+        return ret;
+}
+
+
+/**
+ * recv_pkt - recv an ETHERNET packet, and process it through CM
+ * node state machine
+ */
+int mini_cm_recv_pkt(struct nes_cm_core *cm_core, struct nes_vnic *nesvnic,
+                struct sk_buff *skb)
+{
+        struct nes_cm_node *cm_node = NULL;
+        struct nes_cm_listener *listener = NULL;
+        struct iphdr *iph;
+        struct tcphdr *tcph;
+        struct nes_cm_info nfo;
+        int ret = 0;
+
+        if (!skb || skb->len < sizeof(struct iphdr) + sizeof(struct tcphdr)) {
+                ret = -EINVAL;
+                goto out;
+        }
+
+        iph = (struct iphdr *)skb->data;
+        tcph = (struct tcphdr *)(skb->data + sizeof(struct iphdr));
+        skb_reset_network_header(skb);
+        skb_set_transport_header(skb, sizeof(*tcph));
+        skb->len = ntohs(iph->tot_len);
+
+        nfo.loc_addr = ntohl(iph->daddr);
+        nfo.loc_port = ntohs(tcph->dest);
+        nfo.rem_addr = ntohl(iph->saddr);
+        nfo.rem_port = ntohs(tcph->source);
+
+        nes_debug(NES_DBG_CM, "Received packet: dest=0x%08X:0x%04X src=0x%08X:0x%04X\n",
+                        iph->daddr, tcph->dest, iph->saddr, tcph->source);
+
+        /* note: this call is going to increment cm_node ref count */
+        cm_node = find_node(cm_core,
+                        nfo.rem_port, nfo.rem_addr,
+                        nfo.loc_port, nfo.loc_addr);
+
+        if (!cm_node) {
+                listener = find_listener(cm_core, nfo.loc_addr, nfo.loc_port,
+                                NES_CM_LISTENER_ACTIVE_STATE);
+                if (listener) {
+                        nfo.cm_id = listener->cm_id;
+                        nfo.conn_type = listener->conn_type;
+                } else {
+                        nfo.cm_id = NULL;
+                        nfo.conn_type = 0;
+                }
+
+                cm_node = make_cm_node(cm_core, nesvnic, &nfo, listener);
+                if (!cm_node) {
+                        nes_debug(NES_DBG_CM, "Unable to allocate node\n");
+                        if (listener) {
+                                nes_debug(NES_DBG_CM, "unable to allocate node and decrementing listener refcount\n");
+                                atomic_dec(&listener->ref_count);
+                        }
+                        ret = -1;
+                        goto out;
+                }
+                if (!listener) {
+                        nes_debug(NES_DBG_CM, "Packet found for unknown port %x refcnt=%d\n",
+                                        nfo.loc_port, atomic_read(&cm_node->ref_count));
+                        if (!tcph->rst) {
+                                nes_debug(NES_DBG_CM, "Packet found for unknown port=%d"
+                                                " rem_port=%d refcnt=%d\n",
+                                                nfo.loc_port, nfo.rem_port, atomic_read(&cm_node->ref_count));
+
+                                cm_node->tcp_cntxt.rcv_nxt = ntohl(tcph->seq);
+                                cm_node->tcp_cntxt.loc_seq_num = ntohl(tcph->ack_seq);
+                                send_reset(cm_node);
+                        }
+                        rem_ref_cm_node(cm_core, cm_node);
+                        ret = -1;
+                        goto out;
+                }
+                add_ref_cm_node(cm_node);
+                cm_node->state = NES_CM_STATE_LISTENING;
+        }
+
+        nes_debug(NES_DBG_CM, "Processing Packet for node %p, data = (%p):\n",
+                        cm_node, skb->data);
+        process_packet(cm_node, skb, cm_core);
+
+        rem_ref_cm_node(cm_core, cm_node);
+        out:
+        if (skb)
+                dev_kfree_skb_any(skb);
+        return ret;
+}
+
+
+/**
+ * nes_cm_alloc_core - allocate a top level instance of a cm core
+ */
+struct nes_cm_core *nes_cm_alloc_core(void)
+{
+        int i;
+
+        struct nes_cm_core *cm_core;
+        struct sk_buff *skb = NULL;
+
+        /* setup the CM core */
+        /* alloc top level core control structure */
+        cm_core = kzalloc(sizeof(*cm_core), GFP_KERNEL);
+        if (!cm_core)
+                return NULL;
+
+        INIT_LIST_HEAD(&cm_core->connected_nodes);
+        init_timer(&cm_core->tcp_timer);
+        cm_core->tcp_timer.function = nes_cm_timer_tick;
+
+        cm_core->mtu   = NES_CM_DEFAULT_MTU;
+        cm_core->state = NES_CM_STATE_INITED;
+        cm_core->free_tx_pkt_max = NES_CM_DEFAULT_FREE_PKTS;
+
+        atomic_set(&cm_core->session_id, 0);
+        atomic_set(&cm_core->events_posted, 0);
+
+        /* init the packet lists */
+        skb_queue_head_init(&cm_core->tx_free_list);
+
+        for (i = 0; i < NES_CM_DEFAULT_FRAME_CNT; i++) {
+                skb = dev_alloc_skb(cm_core->mtu);
+                if (!skb) {
+                        kfree(cm_core);
+                        return NULL;
+                }
+                /* add 'raw' skb to free frame list */
+                skb_queue_head(&cm_core->tx_free_list, skb);
+        }
+
+        cm_core->api = &nes_cm_api;
+
+        spin_lock_init(&cm_core->ht_lock);
+        spin_lock_init(&cm_core->listen_list_lock);
+
+        INIT_LIST_HEAD(&cm_core->listen_list.list);
+
+        nes_debug(NES_DBG_CM, "Init CM Core completed -- cm_core=%p\n", cm_core);
+
+        nes_debug(NES_DBG_CM, "Enable QUEUE EVENTS\n");
+        cm_core->event_wq = create_singlethread_workqueue("nesewq");
+        cm_core->post_event = nes_cm_post_event;
+        nes_debug(NES_DBG_CM, "Enable QUEUE DISCONNECTS\n");
+        cm_core->disconn_wq = create_singlethread_workqueue("nesdwq");
+
+        print_core(cm_core);
+        return cm_core;
+}
+
+
+/**
+ * mini_cm_dealloc_core - deallocate a top level instance of a cm core
+ */
+int mini_cm_dealloc_core(struct nes_cm_core *cm_core)
+{
+        nes_debug(NES_DBG_CM, "De-Alloc CM Core (%p)\n", cm_core);
+
+        if (!cm_core)
+                return -EINVAL;
+
+        barrier();
+
+        if (timer_pending(&cm_core->tcp_timer)) {
+                del_timer(&cm_core->tcp_timer);
+        }
+
+        destroy_workqueue(cm_core->event_wq);
+        destroy_workqueue(cm_core->disconn_wq);
+        nes_debug(NES_DBG_CM, "\n");
+        kfree(cm_core);
+
+        return 0;
+}
+
+
+/**
+ * mini_cm_get
+ */
+int mini_cm_get(struct nes_cm_core *cm_core)
+{
+        return cm_core->state;
+}
+
+
+/**
+ * mini_cm_set
+ */
+int mini_cm_set(struct nes_cm_core *cm_core, u32 type, u32 value)
+{
+        int ret = 0;
+
+        switch (type) {
+                case NES_CM_SET_PKT_SIZE:
+                        cm_core->mtu = value;
+                        break;
+                case NES_CM_SET_FREE_PKT_Q_SIZE:
+                        cm_core->free_tx_pkt_max = value;
+                        break;
+                default:
+                        /* unknown set option */
+                        ret = -EINVAL;
+        }
+
+        return ret;
+}
+
+
+/**
+ * nes_cm_init_tsa_conn setup HW; MPA frames must be
+ * successfully exchanged when this is called
+ */
+static int nes_cm_init_tsa_conn(struct nes_qp *nesqp, struct nes_cm_node *cm_node)
+{
+        int ret = 0;
+
+        if (!nesqp)
+                return -EINVAL;
+
+        nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_IPV4 |
+                        NES_QPCONTEXT_MISC_NO_NAGLE | NES_QPCONTEXT_MISC_DO_NOT_FRAG |
+                        NES_QPCONTEXT_MISC_DROS);
+
+        if (cm_node->tcp_cntxt.snd_wscale || cm_node->tcp_cntxt.rcv_wscale)
+                nesqp->nesqp_context->misc |= cpu_to_le32(NES_QPCONTEXT_MISC_WSCALE);
+
+        nesqp->nesqp_context->misc2 |= cpu_to_le32(64 << NES_QPCONTEXT_MISC2_TTL_SHIFT);
+
+        nesqp->nesqp_context->mss |= cpu_to_le32(((u32)cm_node->tcp_cntxt.mss) << 16);
+
+        nesqp->nesqp_context->tcp_state_flow_label |= cpu_to_le32(
+                        (u32)NES_QPCONTEXT_TCPSTATE_EST << NES_QPCONTEXT_TCPFLOW_TCP_STATE_SHIFT);
+
+        nesqp->nesqp_context->pd_index_wscale |= cpu_to_le32(
+                        (cm_node->tcp_cntxt.snd_wscale << NES_QPCONTEXT_PDWSCALE_SND_WSCALE_SHIFT) &
+                        NES_QPCONTEXT_PDWSCALE_SND_WSCALE_MASK);
+
+        nesqp->nesqp_context->pd_index_wscale |= cpu_to_le32(
+                        (cm_node->tcp_cntxt.rcv_wscale << NES_QPCONTEXT_PDWSCALE_RCV_WSCALE_SHIFT) &
+                        NES_QPCONTEXT_PDWSCALE_RCV_WSCALE_MASK);
+
+        nesqp->nesqp_context->keepalive = cpu_to_le32(0x80);
+        nesqp->nesqp_context->ts_recent = 0;
+        nesqp->nesqp_context->ts_age = 0;
+        nesqp->nesqp_context->snd_nxt = cpu_to_le32(cm_node->tcp_cntxt.loc_seq_num);
+        nesqp->nesqp_context->snd_wnd = cpu_to_le32(cm_node->tcp_cntxt.snd_wnd);
+        nesqp->nesqp_context->rcv_nxt = cpu_to_le32(cm_node->tcp_cntxt.rcv_nxt);
+        nesqp->nesqp_context->rcv_wnd = cpu_to_le32(cm_node->tcp_cntxt.rcv_wnd <<
+                        cm_node->tcp_cntxt.rcv_wscale);
+        nesqp->nesqp_context->snd_max = cpu_to_le32(cm_node->tcp_cntxt.loc_seq_num);
+        nesqp->nesqp_context->snd_una = cpu_to_le32(cm_node->tcp_cntxt.loc_seq_num);
+        nesqp->nesqp_context->srtt = 0;
+        nesqp->nesqp_context->rttvar = cpu_to_le32(0x6);
+        nesqp->nesqp_context->ssthresh = cpu_to_le32(0x3FFFC000);
+        nesqp->nesqp_context->cwnd = cpu_to_le32(2*cm_node->tcp_cntxt.mss);
+        nesqp->nesqp_context->snd_wl1 = cpu_to_le32(cm_node->tcp_cntxt.rcv_nxt);
+        nesqp->nesqp_context->snd_wl2 = cpu_to_le32(cm_node->tcp_cntxt.loc_seq_num);
+        nesqp->nesqp_context->max_snd_wnd = cpu_to_le32(cm_node->tcp_cntxt.max_snd_wnd);
+
+        nes_debug(NES_DBG_CM, "QP%u: rcv_nxt = 0x%08X, snd_nxt = 0x%08X,"
+                        " Setting MSS to %u, PDWscale = 0x%08X, rcv_wnd = %u, context misc = 0x%08X.\n",
+                        nesqp->hwqp.qp_id, le32_to_cpu(nesqp->nesqp_context->rcv_nxt),
+                        le32_to_cpu(nesqp->nesqp_context->snd_nxt),
+                        cm_node->tcp_cntxt.mss, le32_to_cpu(nesqp->nesqp_context->pd_index_wscale),
+                        le32_to_cpu(nesqp->nesqp_context->rcv_wnd),
+                        le32_to_cpu(nesqp->nesqp_context->misc));
+        nes_debug(NES_DBG_CM, "  snd_wnd  = 0x%08X.\n", le32_to_cpu(nesqp->nesqp_context->snd_wnd));
+        nes_debug(NES_DBG_CM, "  snd_cwnd = 0x%08X.\n", le32_to_cpu(nesqp->nesqp_context->cwnd));
+        nes_debug(NES_DBG_CM, "  max_swnd = 0x%08X.\n", le32_to_cpu(nesqp->nesqp_context->max_snd_wnd));
+
+        nes_debug(NES_DBG_CM, "Change cm_node state to TSA\n");
+        cm_node->state = NES_CM_STATE_TSA;
+
+        return ret;
+}
+
+
+/**
+ * nes_cm_disconn
+ */
+int nes_cm_disconn(struct nes_qp *nesqp)
+{
+        unsigned long flags;
+
+        spin_lock_irqsave(&nesqp->lock, flags);
+        if (nesqp->disconn_pending == 0) {
+                nesqp->disconn_pending++;
+                spin_unlock_irqrestore(&nesqp->lock, flags);
+                /* nes_add_ref(&nesqp->ibqp); */
+                /* init our disconnect work element, to */
+                INIT_WORK(&nesqp->disconn_work, nes_disconnect_worker);
+
+                queue_work(g_cm_core->disconn_wq, &nesqp->disconn_work);
+        } else {
+                spin_unlock_irqrestore(&nesqp->lock, flags);
+                nes_rem_ref(&nesqp->ibqp);
+        }
+
+        return 0;
+}
+
+
+/**
+ * nes_disconnect_worker
+ */
+void nes_disconnect_worker(struct work_struct *work)
+{
+        struct nes_qp *nesqp = container_of(work, struct nes_qp, disconn_work);
+
+        nes_debug(NES_DBG_CM, "processing AEQE id 0x%04X for QP%u.\n",
+                        nesqp->last_aeq, nesqp->hwqp.qp_id);
+        nes_cm_disconn_true(nesqp);
+}
+
+
+/**
+ * nes_cm_disconn_true
+ */
+int nes_cm_disconn_true(struct nes_qp *nesqp)
+{
+        unsigned long flags;
+        int ret = 0;
+        struct iw_cm_id *cm_id;
+        struct iw_cm_event cm_event;
+        struct nes_vnic *nesvnic;
+        u16 last_ae;
+        u8 original_hw_tcp_state;
+        u8 original_ibqp_state;
+        u8 issued_disconnect_reset = 0;
+
+        if (!nesqp) {
+                nes_debug(NES_DBG_CM, "disconnect_worker nesqp is NULL\n");
+                return -1;
+        }
+
+        spin_lock_irqsave(&nesqp->lock, flags);
+        cm_id = nesqp->cm_id;
+        /* make sure we havent already closed this connection */
+        if (!cm_id) {
+                nes_debug(NES_DBG_CM, "QP%u disconnect_worker cmid is NULL\n",
+                                nesqp->hwqp.qp_id);
+                spin_unlock_irqrestore(&nesqp->lock, flags);
+                nes_rem_ref(&nesqp->ibqp);
+                return -1;
+        }
+
+        nesvnic = to_nesvnic(nesqp->ibqp.device);
+        nes_debug(NES_DBG_CM, "Disconnecting QP%u\n", nesqp->hwqp.qp_id);
+
+        original_hw_tcp_state = nesqp->hw_tcp_state;
+        original_ibqp_state   = nesqp->ibqp_state;
+        last_ae = nesqp->last_aeq;
+
+
+        nes_debug(NES_DBG_CM, "set ibqp_state=%u\n", nesqp->ibqp_state);
+
+        if ((nesqp->cm_id) && (cm_id->event_handler)) {
+                if ((original_hw_tcp_state == NES_AEQE_TCP_STATE_CLOSE_WAIT) ||
+                                ((original_ibqp_state == IB_QPS_RTS) &&
+                                (last_ae == NES_AEQE_AEID_LLP_CONNECTION_RESET))) {
+                        atomic_inc(&cm_disconnects);
+                        cm_event.event = IW_CM_EVENT_DISCONNECT;
+                        if (last_ae == NES_AEQE_AEID_LLP_CONNECTION_RESET) {
+                                issued_disconnect_reset = 1;
+                                cm_event.status = IW_CM_EVENT_STATUS_RESET;
+                                nes_debug(NES_DBG_CM, "Generating a CM Disconnect Event (status reset) for "
+                                                " QP%u, cm_id = %p. \n",
+                                                nesqp->hwqp.qp_id, cm_id);
+                        } else {
+                                cm_event.status = IW_CM_EVENT_STATUS_OK;
+                        }
+
+                        cm_event.local_addr = cm_id->local_addr;
+                        cm_event.remote_addr = cm_id->remote_addr;
+                        cm_event.private_data = NULL;
+                        cm_event.private_data_len = 0;
+
+                        nes_debug(NES_DBG_CM, "Generating a CM Disconnect Event for "
+                                        " QP%u, SQ Head = %u, SQ Tail = %u. cm_id = %p, refcount = %u.\n",
+                                        nesqp->hwqp.qp_id,
+                                        nesqp->hwqp.sq_head, nesqp->hwqp.sq_tail, cm_id,
+                                        atomic_read(&nesqp->refcount));
+
+                        spin_unlock_irqrestore(&nesqp->lock, flags);
+                        ret = cm_id->event_handler(cm_id, &cm_event);
+                        if (ret)
+                                nes_debug(NES_DBG_CM, "OFA CM event_handler returned, ret=%d\n", ret);
+                        spin_lock_irqsave(&nesqp->lock, flags);
+                }
+
+                nesqp->disconn_pending = 0;
+                /* There might have been another AE while the lock was released */
+                original_hw_tcp_state = nesqp->hw_tcp_state;
+                original_ibqp_state   = nesqp->ibqp_state;
+                last_ae = nesqp->last_aeq;
+
+                if ((issued_disconnect_reset == 0) && (nesqp->cm_id) &&
+                                ((original_hw_tcp_state == NES_AEQE_TCP_STATE_CLOSED) ||
+                                 (original_hw_tcp_state == NES_AEQE_TCP_STATE_TIME_WAIT) ||
+                                 (last_ae == NES_AEQE_AEID_RDMAP_ROE_BAD_LLP_CLOSE) ||
+                                 (last_ae == NES_AEQE_AEID_LLP_CONNECTION_RESET))) {
+                        atomic_inc(&cm_closes);
+                        nesqp->cm_id = NULL;
+                        nesqp->in_disconnect = 0;
+                        spin_unlock_irqrestore(&nesqp->lock, flags);
+                        nes_disconnect(nesqp, 1);
+
+                        cm_id->provider_data = nesqp;
+                        /* Send up the close complete event */
+                        cm_event.event = IW_CM_EVENT_CLOSE;
+                        cm_event.status = IW_CM_EVENT_STATUS_OK;
+                        cm_event.provider_data = cm_id->provider_data;
+                        cm_event.local_addr = cm_id->local_addr;
+                        cm_event.remote_addr = cm_id->remote_addr;
+                        cm_event.private_data = NULL;
+                        cm_event.private_data_len = 0;
+
+                        ret = cm_id->event_handler(cm_id, &cm_event);
+                        if (ret) {
+                                nes_debug(NES_DBG_CM, "OFA CM event_handler returned, ret=%d\n", ret);
+                        }
+
+                        cm_id->rem_ref(cm_id);
+
+                        spin_lock_irqsave(&nesqp->lock, flags);
+                        if (nesqp->flush_issued == 0) {
+                                nesqp->flush_issued = 1;
+                                spin_unlock_irqrestore(&nesqp->lock, flags);
+                                flush_wqes(nesvnic->nesdev, nesqp, NES_CQP_FLUSH_RQ, 1);
+                        } else {
+                                spin_unlock_irqrestore(&nesqp->lock, flags);
+                        }
+
+                        /* This reference is from either ModifyQP or the AE processing,
+                                        there is still a race here with modifyqp */
+                        nes_rem_ref(&nesqp->ibqp);
+
+                } else {
+                        cm_id = nesqp->cm_id;
+                        spin_unlock_irqrestore(&nesqp->lock, flags);
+                        /* check to see if the inbound reset beat the outbound reset */
+                        if ((!cm_id) && (last_ae==NES_AEQE_AEID_RESET_SENT)) {
+                                nes_debug(NES_DBG_CM, "QP%u: Decing refcount due to inbound reset"
+                                                " beating the outbound reset.\n",
+                                                nesqp->hwqp.qp_id);
+                                nes_rem_ref(&nesqp->ibqp);
+                        }
+                }
+        } else {
+                nesqp->disconn_pending = 0;
+                spin_unlock_irqrestore(&nesqp->lock, flags);
+        }
+        nes_rem_ref(&nesqp->ibqp);
+
+        return 0;
+}
+
+
+/**
+ * nes_disconnect
+ */
+int nes_disconnect(struct nes_qp *nesqp, int abrupt)
+{
+        int ret = 0;
+        struct nes_vnic *nesvnic;
+        struct nes_device *nesdev;
+
+        nesvnic = to_nesvnic(nesqp->ibqp.device);
+        if (!nesvnic)
+                return -EINVAL;
+
+        nesdev = nesvnic->nesdev;
+
+        nes_debug(NES_DBG_CM, "netdev refcnt = %u.\n",
+                        atomic_read(&nesvnic->netdev->refcnt));
+
+        if (nesqp->active_conn) {
+
+                /* indicate this connection is NOT active */
+                nesqp->active_conn = 0;
+        } else {
+                /* Need to free the Last Streaming Mode Message */
+                if (nesqp->ietf_frame) {
+                        pci_free_consistent(nesdev->pcidev,
+                                        nesqp->private_data_len+sizeof(struct ietf_mpa_frame),
+                                        nesqp->ietf_frame, nesqp->ietf_frame_pbase);
+                }
+        }
+
+        /* close the CM node down if it is still active */
+        if (nesqp->cm_node) {
+                nes_debug(NES_DBG_CM, "Call close API\n");
+
+                g_cm_core->api->close(g_cm_core, nesqp->cm_node);
+                nesqp->cm_node = NULL;
+        }
+
+        return ret;
+}
+
+
+/**
+ * nes_accept
+ */
+int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
+{
+        u64 u64temp;
+        struct ib_qp *ibqp;
+        struct nes_qp *nesqp;
+        struct nes_vnic *nesvnic;
+        struct nes_device *nesdev;
+        struct nes_cm_node *cm_node;
+        struct nes_adapter *adapter;
+        struct ib_qp_attr attr;
+        struct iw_cm_event cm_event;
+        struct nes_hw_qp_wqe *wqe;
+        struct nes_v4_quad nes_quad;
+        int ret;
+
+        ibqp = nes_get_qp(cm_id->device, conn_param->qpn);
+        if (!ibqp)
+                return -EINVAL;
+
+        /* get all our handles */
+        nesqp = to_nesqp(ibqp);
+        nesvnic = to_nesvnic(nesqp->ibqp.device);
+        nesdev = nesvnic->nesdev;
+        adapter = nesdev->nesadapter;
+
+        nes_debug(NES_DBG_CM, "nesvnic=%p, netdev=%p, %s\n",
+                        nesvnic, nesvnic->netdev, nesvnic->netdev->name);
+
+        /* since this is from a listen, we were able to put node handle into cm_id */
+        cm_node = (struct nes_cm_node *)cm_id->provider_data;
+
+        /* associate the node with the QP */
+        nesqp->cm_node = (void *)cm_node;
+
+        nes_debug(NES_DBG_CM, "QP%u, cm_node=%p, jiffies = %lu\n",
+                        nesqp->hwqp.qp_id, cm_node, jiffies);
+        atomic_inc(&cm_accepts);
+
+        nes_debug(NES_DBG_CM, "netdev refcnt = %u.\n",
+                        atomic_read(&nesvnic->netdev->refcnt));
+
+                /* allocate the ietf frame and space for private data */
+                nesqp->ietf_frame = pci_alloc_consistent(nesdev->pcidev,
+                                sizeof(struct ietf_mpa_frame) + conn_param->private_data_len,
+                                &nesqp->ietf_frame_pbase);
+
+                if (!nesqp->ietf_frame) {
+                        nes_debug(NES_DBG_CM, "Unable to allocate memory for private data\n");
+                        return -ENOMEM;
+                }
+
+
+                /* setup the MPA frame */
+                nesqp->private_data_len = conn_param->private_data_len;
+                memcpy(nesqp->ietf_frame->key, IEFT_MPA_KEY_REP, IETF_MPA_KEY_SIZE);
+
+                memcpy(nesqp->ietf_frame->priv_data, conn_param->private_data,
+                                conn_param->private_data_len);
+
+                nesqp->ietf_frame->priv_data_len = cpu_to_be16(conn_param->private_data_len);
+                nesqp->ietf_frame->rev = mpa_version;
+                nesqp->ietf_frame->flags = IETF_MPA_FLAGS_CRC;
+
+                /* setup our first outgoing iWarp send WQE (the IETF frame response) */
+                wqe = &nesqp->hwqp.sq_vbase[0];
+
+                if (cm_id->remote_addr.sin_addr.s_addr != cm_id->local_addr.sin_addr.s_addr) {
+                        u64temp = (unsigned long)nesqp;
+                        u64temp |= NES_SW_CONTEXT_ALIGN>>1;
+                        set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_COMP_CTX_LOW_IDX,
+                                            u64temp);
+                        wqe->wqe_words[NES_IWARP_SQ_WQE_MISC_IDX] =
+                                        cpu_to_le32(NES_IWARP_SQ_WQE_STREAMING | NES_IWARP_SQ_WQE_WRPDU);
+                        wqe->wqe_words[NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX] =
+                                        cpu_to_le32(conn_param->private_data_len + sizeof(struct ietf_mpa_frame));
+                        wqe->wqe_words[NES_IWARP_SQ_WQE_FRAG0_LOW_IDX] =
+                                        cpu_to_le32((u32)nesqp->ietf_frame_pbase);
+                        wqe->wqe_words[NES_IWARP_SQ_WQE_FRAG0_HIGH_IDX] =
+                                        cpu_to_le32((u32)((u64)nesqp->ietf_frame_pbase >> 32));
+                        wqe->wqe_words[NES_IWARP_SQ_WQE_LENGTH0_IDX] =
+                                        cpu_to_le32(conn_param->private_data_len + sizeof(struct ietf_mpa_frame));
+                        wqe->wqe_words[NES_IWARP_SQ_WQE_STAG0_IDX] = 0;
+
+                        nesqp->nesqp_context->ird_ord_sizes |= cpu_to_le32(
+                                        NES_QPCONTEXT_ORDIRD_LSMM_PRESENT | NES_QPCONTEXT_ORDIRD_WRPDU);
+                } else {
+                        nesqp->nesqp_context->ird_ord_sizes |= cpu_to_le32((NES_QPCONTEXT_ORDIRD_LSMM_PRESENT |
+                                        NES_QPCONTEXT_ORDIRD_WRPDU | NES_QPCONTEXT_ORDIRD_ALSMM));
+                }
+                nesqp->skip_lsmm = 1;
+
+
+        /* Cache the cm_id in the qp */
+        nesqp->cm_id = cm_id;
+        cm_node->cm_id = cm_id;
+
+        /*  nesqp->cm_node = (void *)cm_id->provider_data; */
+        cm_id->provider_data = nesqp;
+        nesqp->active_conn   = 0;
+
+        nes_cm_init_tsa_conn(nesqp, cm_node);
+
+        nesqp->nesqp_context->tcpPorts[0] = cpu_to_le16(ntohs(cm_id->local_addr.sin_port));
+        nesqp->nesqp_context->tcpPorts[1] = cpu_to_le16(ntohs(cm_id->remote_addr.sin_port));
+        nesqp->nesqp_context->ip0 = cpu_to_le32(ntohl(cm_id->remote_addr.sin_addr.s_addr));
+
+        nesqp->nesqp_context->misc2 |= cpu_to_le32(
+                        (u32)PCI_FUNC(nesdev->pcidev->devfn) << NES_QPCONTEXT_MISC2_SRC_IP_SHIFT);
+
+        nesqp->nesqp_context->arp_index_vlan |= cpu_to_le32(
+                        nes_arp_table(nesdev, le32_to_cpu(nesqp->nesqp_context->ip0), NULL,
+                        NES_ARP_RESOLVE) << 16);
+
+        nesqp->nesqp_context->ts_val_delta = cpu_to_le32(
+                        jiffies - nes_read_indexed(nesdev, NES_IDX_TCP_NOW));
+
+        nesqp->nesqp_context->ird_index = cpu_to_le32(nesqp->hwqp.qp_id);
+
+        nesqp->nesqp_context->ird_ord_sizes |= cpu_to_le32(
+                        ((u32)1 << NES_QPCONTEXT_ORDIRD_IWARP_MODE_SHIFT));
+        nesqp->nesqp_context->ird_ord_sizes |= cpu_to_le32((u32)conn_param->ord);
+
+        memset(&nes_quad, 0, sizeof(nes_quad));
+        nes_quad.DstIpAdrIndex = cpu_to_le32((u32)PCI_FUNC(nesdev->pcidev->devfn) << 24);
+        nes_quad.SrcIpadr      = cm_id->remote_addr.sin_addr.s_addr;
+        nes_quad.TcpPorts[0]   = cm_id->remote_addr.sin_port;
+        nes_quad.TcpPorts[1]   = cm_id->local_addr.sin_port;
+
+        /* Produce hash key */
+        nesqp->hte_index = cpu_to_be32(
+                        crc32c(~0, (void *)&nes_quad, sizeof(nes_quad)) ^ 0xffffffff);
+        nes_debug(NES_DBG_CM, "HTE Index = 0x%08X, CRC = 0x%08X\n",
+                        nesqp->hte_index, nesqp->hte_index & adapter->hte_index_mask);
+
+        nesqp->hte_index &= adapter->hte_index_mask;
+        nesqp->nesqp_context->hte_index = cpu_to_le32(nesqp->hte_index);
+
+        cm_node->cm_core->api->accelerated(cm_node->cm_core, cm_node);
+
+        nes_debug(NES_DBG_CM, "QP%u, Destination IP = 0x%08X:0x%04X, local = 0x%08X:0x%04X,"
+                        " rcv_nxt=0x%08X, snd_nxt=0x%08X, mpa + private data length=%zu.\n",
+                        nesqp->hwqp.qp_id,
+                        ntohl(cm_id->remote_addr.sin_addr.s_addr),
+                        ntohs(cm_id->remote_addr.sin_port),
+                        ntohl(cm_id->local_addr.sin_addr.s_addr),
+                        ntohs(cm_id->local_addr.sin_port),
+                        le32_to_cpu(nesqp->nesqp_context->rcv_nxt),
+                        le32_to_cpu(nesqp->nesqp_context->snd_nxt),
+                        conn_param->private_data_len+sizeof(struct ietf_mpa_frame));
+
+        attr.qp_state = IB_QPS_RTS;
+        nes_modify_qp(&nesqp->ibqp, &attr, IB_QP_STATE, NULL);
+
+        /* notify OF layer that accept event was successfull */
+        cm_id->add_ref(cm_id);
+
+        cm_event.event = IW_CM_EVENT_ESTABLISHED;
+        cm_event.status = IW_CM_EVENT_STATUS_ACCEPTED;
+        cm_event.provider_data = (void *)nesqp;
+        cm_event.local_addr = cm_id->local_addr;
+        cm_event.remote_addr = cm_id->remote_addr;
+        cm_event.private_data = NULL;
+        cm_event.private_data_len = 0;
+        ret = cm_id->event_handler(cm_id, &cm_event);
+        if (cm_node->loopbackpartner) {
+                cm_node->loopbackpartner->mpa_frame_size = nesqp->private_data_len;
+                /* copy entire MPA frame to our cm_node's frame */
+                memcpy(cm_node->loopbackpartner->mpa_frame_buf, nesqp->ietf_frame->priv_data,
+                           nesqp->private_data_len);
+                create_event(cm_node->loopbackpartner, NES_CM_EVENT_CONNECTED);
+        }
+        if (ret)
+                printk("%s[%u] OFA CM event_handler returned, ret=%d\n",
+                                __FUNCTION__, __LINE__, ret);
+
+        return 0;
+}
+
+
+/**
+ * nes_reject
+ */
+int nes_reject(struct iw_cm_id *cm_id, const void *pdata, u8 pdata_len)
+{
+        struct nes_cm_node *cm_node;
+        struct nes_cm_core *cm_core;
+
+        atomic_inc(&cm_rejects);
+        cm_node = (struct nes_cm_node *) cm_id->provider_data;
+        cm_core = cm_node->cm_core;
+        cm_node->mpa_frame_size = sizeof(struct ietf_mpa_frame) + pdata_len;
+
+        strcpy(&cm_node->mpa_frame.key[0], IEFT_MPA_KEY_REP);
+        memcpy(&cm_node->mpa_frame.priv_data, pdata, pdata_len);
+
+        cm_node->mpa_frame.priv_data_len = cpu_to_be16(pdata_len);
+        cm_node->mpa_frame.rev = mpa_version;
+        cm_node->mpa_frame.flags = IETF_MPA_FLAGS_CRC | IETF_MPA_FLAGS_REJECT;
+
+        cm_core->api->reject(cm_core, &cm_node->mpa_frame, cm_node);
+
+        return 0;
+}
+
+
+/**
+ * nes_connect
+ * setup and launch cm connect node
+ */
+int nes_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
+{
+        struct ib_qp *ibqp;
+        struct nes_qp *nesqp;
+        struct nes_vnic *nesvnic;
+        struct nes_device *nesdev;
+        struct nes_cm_node *cm_node;
+        struct nes_cm_info cm_info;
+
+        ibqp = nes_get_qp(cm_id->device, conn_param->qpn);
+        if (!ibqp)
+                return -EINVAL;
+        nesqp = to_nesqp(ibqp);
+        if (!nesqp)
+                return -EINVAL;
+        nesvnic = to_nesvnic(nesqp->ibqp.device);
+        if (!nesvnic)
+                return -EINVAL;
+        nesdev  = nesvnic->nesdev;
+        if (!nesdev)
+                return -EINVAL;
+
+        atomic_inc(&cm_connects);
+
+        nesqp->ietf_frame = kzalloc(sizeof(struct ietf_mpa_frame) +
+                        conn_param->private_data_len, GFP_KERNEL);
+        if (!nesqp->ietf_frame)
+                return -ENOMEM;
+
+        /* set qp as having an active connection */
+        nesqp->active_conn = 1;
+
+        nes_debug(NES_DBG_CM, "QP%u, Destination IP = 0x%08X:0x%04X, local = 0x%08X:0x%04X.\n",
+                        nesqp->hwqp.qp_id,
+                        ntohl(cm_id->remote_addr.sin_addr.s_addr),
+                        ntohs(cm_id->remote_addr.sin_port),
+                        ntohl(cm_id->local_addr.sin_addr.s_addr),
+                        ntohs(cm_id->local_addr.sin_port));
+
+        /* cache the cm_id in the qp */
+        nesqp->cm_id = cm_id;
+
+        cm_id->provider_data = nesqp;
+
+        /* copy the private data */
+        if (conn_param->private_data_len) {
+                memcpy(nesqp->ietf_frame->priv_data, conn_param->private_data,
+                                conn_param->private_data_len);
+        }
+
+        nesqp->private_data_len = conn_param->private_data_len;
+        nesqp->nesqp_context->ird_ord_sizes |= cpu_to_le32((u32)conn_param->ord);
+        nes_debug(NES_DBG_CM, "requested ord = 0x%08X.\n", (u32)conn_param->ord);
+        nes_debug(NES_DBG_CM, "mpa private data len =%u\n", conn_param->private_data_len);
+
+        strcpy(&nesqp->ietf_frame->key[0], IEFT_MPA_KEY_REQ);
+        nesqp->ietf_frame->flags = IETF_MPA_FLAGS_CRC;
+        nesqp->ietf_frame->rev = IETF_MPA_VERSION;
+        nesqp->ietf_frame->priv_data_len = htons(conn_param->private_data_len);
+
+        if (cm_id->local_addr.sin_addr.s_addr != cm_id->remote_addr.sin_addr.s_addr)
+                nes_manage_apbvt(nesvnic, ntohs(cm_id->local_addr.sin_port),
+                                PCI_FUNC(nesdev->pcidev->devfn), NES_MANAGE_APBVT_ADD);
+
+        /* set up the connection params for the node */
+        cm_info.loc_addr = (cm_id->local_addr.sin_addr.s_addr);
+        cm_info.loc_port = (cm_id->local_addr.sin_port);
+        cm_info.rem_addr = (cm_id->remote_addr.sin_addr.s_addr);
+        cm_info.rem_port = (cm_id->remote_addr.sin_port);
+        cm_info.cm_id = cm_id;
+        cm_info.conn_type = NES_CM_IWARP_CONN_TYPE;
+
+        cm_id->add_ref(cm_id);
+        nes_add_ref(&nesqp->ibqp);
+
+        /* create a connect CM node connection */
+        cm_node = g_cm_core->api->connect(g_cm_core, nesvnic, nesqp->ietf_frame, &cm_info);
+        if (!cm_node) {
+                if (cm_id->local_addr.sin_addr.s_addr != cm_id->remote_addr.sin_addr.s_addr)
+                        nes_manage_apbvt(nesvnic, ntohs(cm_id->local_addr.sin_port),
+                                        PCI_FUNC(nesdev->pcidev->devfn), NES_MANAGE_APBVT_DEL);
+                nes_rem_ref(&nesqp->ibqp);
+                kfree(nesqp->ietf_frame);
+                nesqp->ietf_frame = NULL;
+                cm_id->rem_ref(cm_id);
+                return -ENOMEM;
+        }
+
+        cm_node->apbvt_set = 1;
+        nesqp->cm_node = cm_node;
+
+        return 0;
+}
+
+
+/**
+ * nes_create_listen
+ */
+int nes_create_listen(struct iw_cm_id *cm_id, int backlog)
+{
+        struct nes_vnic *nesvnic;
+        struct nes_cm_listener *cm_node;
+        struct nes_cm_info cm_info;
+        struct nes_adapter *adapter;
+        int err;
+
+
+        nes_debug(NES_DBG_CM, "cm_id = %p, local port = 0x%04X.\n",
+                        cm_id, ntohs(cm_id->local_addr.sin_port));
+
+        nesvnic = to_nesvnic(cm_id->device);
+        if (!nesvnic)
+                return -EINVAL;
+        adapter = nesvnic->nesdev->nesadapter;
+        nes_debug(NES_DBG_CM, "nesvnic=%p, netdev=%p, %s\n",
+                        nesvnic, nesvnic->netdev, nesvnic->netdev->name);
+
+        nes_debug(NES_DBG_CM, "nesvnic->local_ipaddr=0x%08x, sin_addr.s_addr=0x%08x\n",
+                        nesvnic->local_ipaddr, cm_id->local_addr.sin_addr.s_addr);
+
+        /* setup listen params in our api call struct */
+        cm_info.loc_addr = nesvnic->local_ipaddr;
+        cm_info.loc_port = cm_id->local_addr.sin_port;
+        cm_info.backlog = backlog;
+        cm_info.cm_id = cm_id;
+
+        cm_info.conn_type = NES_CM_IWARP_CONN_TYPE;
+
+
+        cm_node = g_cm_core->api->listen(g_cm_core, nesvnic, &cm_info);
+        if (!cm_node) {
+                printk("%s[%u] Error returned from listen API call\n",
+                                __FUNCTION__, __LINE__);
+                return -ENOMEM;
+        }
+
+        cm_id->provider_data = cm_node;
+
+        if (!cm_node->reused_node) {
+                err = nes_manage_apbvt(nesvnic, ntohs(cm_id->local_addr.sin_port),
+                                PCI_FUNC(nesvnic->nesdev->pcidev->devfn), NES_MANAGE_APBVT_ADD);
+                if (err) {
+                        printk("nes_manage_apbvt call returned %d.\n", err);
+                        g_cm_core->api->stop_listener(g_cm_core, (void *)cm_node);
+                        return err;
+                }
+                cm_listens_created++;
+        }
+
+        cm_id->add_ref(cm_id);
+        cm_id->provider_data = (void *)cm_node;
+
+
+        return 0;
+}
+
+
+/**
+ * nes_destroy_listen
+ */
+int nes_destroy_listen(struct iw_cm_id *cm_id)
+{
+        if (cm_id->provider_data)
+                g_cm_core->api->stop_listener(g_cm_core, cm_id->provider_data);
+        else
+                nes_debug(NES_DBG_CM, "cm_id->provider_data was NULL\n");
+
+        cm_id->rem_ref(cm_id);
+
+        return 0;
+}
+
+
+/**
+ * nes_cm_recv
+ */
+int nes_cm_recv(struct sk_buff *skb, struct net_device *netdevice)
+{
+        cm_packets_received++;
+        if ((g_cm_core) && (g_cm_core->api)) {
+                g_cm_core->api->recv_pkt(g_cm_core, netdev_priv(netdevice), skb);
+        } else {
+                nes_debug(NES_DBG_CM, "Unable to process packet for CM,"
+                                " cm is not setup properly.\n");
+        }
+
+        return 0;
+}
+
+
+/**
+ * nes_cm_start
+ * Start and init a cm core module
+ */
+int nes_cm_start(void)
+{
+        nes_debug(NES_DBG_CM, "\n");
+        /* create the primary CM core, pass this handle to subsequent core inits */
+        g_cm_core = nes_cm_alloc_core();
+        if (g_cm_core) {
+                return 0;
+        } else {
+                return -ENOMEM;
+        }
+}
+
+
+/**
+ * nes_cm_stop
+ * stop and dealloc all cm core instances
+ */
+int nes_cm_stop(void)
+{
+        g_cm_core->api->destroy_cm_core(g_cm_core);
+        return 0;
+}
+
+
+/**
+ * cm_event_connected
+ * handle a connected event, setup QPs and HW
+ */
+void cm_event_connected(struct nes_cm_event *event)
+{
+        u64 u64temp;
+        struct nes_qp *nesqp;
+        struct nes_vnic *nesvnic;
+        struct nes_device *nesdev;
+        struct nes_cm_node *cm_node;
+        struct nes_adapter *nesadapter;
+        struct ib_qp_attr attr;
+        struct iw_cm_id *cm_id;
+        struct iw_cm_event cm_event;
+        struct nes_hw_qp_wqe *wqe;
+        struct nes_v4_quad nes_quad;
+        int ret;
+
+        /* get all our handles */
+        cm_node = event->cm_node;
+        cm_id = cm_node->cm_id;
+        nes_debug(NES_DBG_CM, "cm_event_connected - %p - cm_id = %p\n", cm_node, cm_id);
+        nesqp = (struct nes_qp *)cm_id->provider_data;
+        nesvnic = to_nesvnic(nesqp->ibqp.device);
+        nesdev = nesvnic->nesdev;
+        nesadapter = nesdev->nesadapter;
+
+        if (nesqp->destroyed) {
+                return;
+        }
+        atomic_inc(&cm_connecteds);
+        nes_debug(NES_DBG_CM, "QP%u attempting to connect to  0x%08X:0x%04X on"
+                        " local port 0x%04X. jiffies = %lu.\n",
+                        nesqp->hwqp.qp_id,
+                        ntohl(cm_id->remote_addr.sin_addr.s_addr),
+                        ntohs(cm_id->remote_addr.sin_port),
+                        ntohs(cm_id->local_addr.sin_port),
+                        jiffies);
+
+        nes_cm_init_tsa_conn(nesqp, cm_node);
+
+        /* set the QP tsa context */
+        nesqp->nesqp_context->tcpPorts[0] = cpu_to_le16(ntohs(cm_id->local_addr.sin_port));
+        nesqp->nesqp_context->tcpPorts[1] = cpu_to_le16(ntohs(cm_id->remote_addr.sin_port));
+        nesqp->nesqp_context->ip0 = cpu_to_le32(ntohl(cm_id->remote_addr.sin_addr.s_addr));
+
+        nesqp->nesqp_context->misc2 |= cpu_to_le32(
+                        (u32)PCI_FUNC(nesdev->pcidev->devfn) << NES_QPCONTEXT_MISC2_SRC_IP_SHIFT);
+        nesqp->nesqp_context->arp_index_vlan |= cpu_to_le32(
+                        nes_arp_table(nesdev, le32_to_cpu(nesqp->nesqp_context->ip0),
+                        NULL, NES_ARP_RESOLVE) << 16);
+        nesqp->nesqp_context->ts_val_delta = cpu_to_le32(
+                        jiffies - nes_read_indexed(nesdev, NES_IDX_TCP_NOW));
+        nesqp->nesqp_context->ird_index = cpu_to_le32(nesqp->hwqp.qp_id);
+        nesqp->nesqp_context->ird_ord_sizes |=
+                        cpu_to_le32((u32)1 << NES_QPCONTEXT_ORDIRD_IWARP_MODE_SHIFT);
+
+        /* Adjust tail for not having a LSMM */
+        nesqp->hwqp.sq_tail = 1;
+
+#if defined(NES_SEND_FIRST_WRITE)
+                if (cm_node->send_write0) {
+                        nes_debug(NES_DBG_CM, "Sending first write.\n");
+                        wqe = &nesqp->hwqp.sq_vbase[0];
+                        u64temp = (unsigned long)nesqp;
+                        u64temp |= NES_SW_CONTEXT_ALIGN>>1;
+                        set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_COMP_CTX_LOW_IDX,
+                                            u64temp);
+                        wqe->wqe_words[NES_IWARP_SQ_WQE_MISC_IDX] = cpu_to_le32(NES_IWARP_SQ_OP_RDMAW);
+                        wqe->wqe_words[NES_IWARP_SQ_WQE_TOTAL_PAYLOAD_IDX] = 0;
+                        wqe->wqe_words[NES_IWARP_SQ_WQE_FRAG0_LOW_IDX] = 0;
+                        wqe->wqe_words[NES_IWARP_SQ_WQE_FRAG0_HIGH_IDX] = 0;
+                        wqe->wqe_words[NES_IWARP_SQ_WQE_LENGTH0_IDX] = 0;
+                        wqe->wqe_words[NES_IWARP_SQ_WQE_STAG0_IDX] = 0;
+
+                        /* use the reserved spot on the WQ for the extra first WQE */
+                        nesqp->nesqp_context->ird_ord_sizes &= cpu_to_le32(~(NES_QPCONTEXT_ORDIRD_LSMM_PRESENT |
+                                        NES_QPCONTEXT_ORDIRD_WRPDU | NES_QPCONTEXT_ORDIRD_ALSMM));
+                        nesqp->skip_lsmm = 1;
+                        nesqp->hwqp.sq_tail = 0;
+                        nes_write32(nesdev->regs + NES_WQE_ALLOC,
+                                        (1 << 24) | 0x00800000 | nesqp->hwqp.qp_id);
+                }
+#endif
+
+        memset(&nes_quad, 0, sizeof(nes_quad));
+
+        nes_quad.DstIpAdrIndex = cpu_to_le32((u32)PCI_FUNC(nesdev->pcidev->devfn) << 24);
+        nes_quad.SrcIpadr = cm_id->remote_addr.sin_addr.s_addr;
+        nes_quad.TcpPorts[0] = cm_id->remote_addr.sin_port;
+        nes_quad.TcpPorts[1] = cm_id->local_addr.sin_port;
+
+        /* Produce hash key */
+        nesqp->hte_index = cpu_to_be32(
+                        crc32c(~0, (void *)&nes_quad, sizeof(nes_quad)) ^ 0xffffffff);
+        nes_debug(NES_DBG_CM, "HTE Index = 0x%08X, After CRC = 0x%08X\n",
+                        nesqp->hte_index, nesqp->hte_index & nesadapter->hte_index_mask);
+
+        nesqp->hte_index &= nesadapter->hte_index_mask;
+        nesqp->nesqp_context->hte_index = cpu_to_le32(nesqp->hte_index);
+
+        nesqp->ietf_frame = &cm_node->mpa_frame;
+        nesqp->private_data_len = (u8) cm_node->mpa_frame_size;
+        cm_node->cm_core->api->accelerated(cm_node->cm_core, cm_node);
+
+        /* modify QP state to rts */
+        attr.qp_state = IB_QPS_RTS;
+        nes_modify_qp(&nesqp->ibqp, &attr, IB_QP_STATE, NULL);
+
+        /* notify OF layer we successfully created the requested connection */
+        cm_event.event = IW_CM_EVENT_CONNECT_REPLY;
+        cm_event.status = IW_CM_EVENT_STATUS_ACCEPTED;
+        cm_event.provider_data = cm_id->provider_data;
+        cm_event.local_addr.sin_family = AF_INET;
+        cm_event.local_addr.sin_port = cm_id->local_addr.sin_port;
+        cm_event.remote_addr = cm_id->remote_addr;
+
+                cm_event.private_data = (void *)event->cm_node->mpa_frame_buf;
+                cm_event.private_data_len = (u8) event->cm_node->mpa_frame_size;
+
+        cm_event.local_addr.sin_addr.s_addr = event->cm_info.rem_addr;
+        ret = cm_id->event_handler(cm_id, &cm_event);
+        nes_debug(NES_DBG_CM, "OFA CM event_handler returned, ret=%d\n", ret);
+
+        if (ret)
+                printk("%s[%u] OFA CM event_handler returned, ret=%d\n",
+                                __FUNCTION__, __LINE__, ret);
+        nes_debug(NES_DBG_CM, "Exiting connect thread for QP%u. jiffies = %lu\n",
+                        nesqp->hwqp.qp_id, jiffies );
+
+        nes_rem_ref(&nesqp->ibqp);
+
+        return;
+}
+
+
+/**
+ * cm_event_connect_error
+ */
+void cm_event_connect_error(struct nes_cm_event *event)
+{
+        struct nes_qp *nesqp;
+        struct iw_cm_id *cm_id;
+        struct iw_cm_event cm_event;
+        /* struct nes_cm_info cm_info; */
+        int ret;
+
+        if (!event->cm_node)
+                return;
+
+        cm_id = event->cm_node->cm_id;
+        if (!cm_id) {
+                return;
+        }
+
+        nes_debug(NES_DBG_CM, "cm_node=%p, cm_id=%p\n", event->cm_node, cm_id);
+        nesqp = cm_id->provider_data;
+
+        if (!nesqp) {
+                return;
+        }
+
+        /* notify OF layer about this connection error event */
+        /* cm_id->rem_ref(cm_id); */
+        nesqp->cm_id = NULL;
+        cm_id->provider_data = NULL;
+        cm_event.event = IW_CM_EVENT_CONNECT_REPLY;
+        cm_event.status = IW_CM_EVENT_STATUS_REJECTED;
+        cm_event.provider_data = cm_id->provider_data;
+        cm_event.local_addr = cm_id->local_addr;
+        cm_event.remote_addr = cm_id->remote_addr;
+        cm_event.private_data = NULL;
+        cm_event.private_data_len = 0;
+
+        nes_debug(NES_DBG_CM, "call CM_EVENT REJECTED, local_addr=%08x, remove_addr=%08x\n",
+                        cm_event.local_addr.sin_addr.s_addr, cm_event.remote_addr.sin_addr.s_addr);
+
+        ret = cm_id->event_handler(cm_id, &cm_event);
+        nes_debug(NES_DBG_CM, "OFA CM event_handler returned, ret=%d\n", ret);
+        if (ret)
+                printk("%s[%u] OFA CM event_handler returned, ret=%d\n",
+                                __FUNCTION__, __LINE__, ret);
+        nes_rem_ref(&nesqp->ibqp);
+                cm_id->rem_ref(cm_id);
+
+        return;
+}
+
+
+/**
+ * cm_event_reset
+ */
+void cm_event_reset(struct nes_cm_event *event)
+{
+        struct nes_qp *nesqp;
+        struct iw_cm_id *cm_id;
+        struct iw_cm_event cm_event;
+        /* struct nes_cm_info cm_info; */
+        int ret;
+
+        if (!event->cm_node)
+                return;
+
+        if (!event->cm_node->cm_id)
+                return;
+
+        cm_id = event->cm_node->cm_id;
+
+        nes_debug(NES_DBG_CM, "%p - cm_id = %p\n", event->cm_node, cm_id);
+        nesqp = cm_id->provider_data;
+
+        nesqp->cm_id = NULL;
+        /* cm_id->provider_data = NULL; */
+        cm_event.event = IW_CM_EVENT_DISCONNECT;
+        cm_event.status = IW_CM_EVENT_STATUS_RESET;
+        cm_event.provider_data = cm_id->provider_data;
+        cm_event.local_addr = cm_id->local_addr;
+        cm_event.remote_addr = cm_id->remote_addr;
+        cm_event.private_data = NULL;
+        cm_event.private_data_len = 0;
+
+        ret = cm_id->event_handler(cm_id, &cm_event);
+        nes_debug(NES_DBG_CM, "OFA CM event_handler returned, ret=%d\n", ret);
+
+
+        /* notify OF layer about this connection error event */
+        cm_id->rem_ref(cm_id);
+
+        return;
+}
+
+
+/**
+ * cm_event_mpa_req
+ */
+void cm_event_mpa_req(struct nes_cm_event *event)
+{
+        struct iw_cm_id   *cm_id;
+        struct iw_cm_event cm_event;
+        int ret;
+        struct nes_cm_node *cm_node;
+
+        cm_node = event->cm_node;
+        if (!cm_node)
+                return;
+        cm_id = cm_node->cm_id;
+
+        atomic_inc(&cm_connect_reqs);
+        nes_debug(NES_DBG_CM, "cm_node = %p - cm_id = %p, jiffies = %lu\n",
+                        cm_node, cm_id, jiffies);
+
+        cm_event.event = IW_CM_EVENT_CONNECT_REQUEST;
+        cm_event.status = IW_CM_EVENT_STATUS_OK;
+        cm_event.provider_data = (void *)cm_node;
+
+        cm_event.local_addr.sin_family = AF_INET;
+        cm_event.local_addr.sin_port = htons(event->cm_info.loc_port);
+        cm_event.local_addr.sin_addr.s_addr = htonl(event->cm_info.loc_addr);
+
+        cm_event.remote_addr.sin_family = AF_INET;
+        cm_event.remote_addr.sin_port = htons(event->cm_info.rem_port);
+        cm_event.remote_addr.sin_addr.s_addr = htonl(event->cm_info.rem_addr);
+
+                cm_event.private_data                = cm_node->mpa_frame_buf;
+                cm_event.private_data_len            = (u8) cm_node->mpa_frame_size;
+
+        ret = cm_id->event_handler(cm_id, &cm_event);
+        if (ret)
+                printk("%s[%u] OFA CM event_handler returned, ret=%d\n",
+                                __FUNCTION__, __LINE__, ret);
+
+        return;
+}
+
+
+static void nes_cm_event_handler(struct work_struct *);
+
+/**
+ * nes_cm_post_event
+ * post an event to the cm event handler
+ */
+int nes_cm_post_event(struct nes_cm_event *event)
+{
+        atomic_inc(&event->cm_node->cm_core->events_posted);
+        add_ref_cm_node(event->cm_node);
+        event->cm_info.cm_id->add_ref(event->cm_info.cm_id);
+        INIT_WORK(&event->event_work, nes_cm_event_handler);
+        nes_debug(NES_DBG_CM, "queue_work, event=%p\n", event);
+
+        queue_work(event->cm_node->cm_core->event_wq, &event->event_work);
+
+        nes_debug(NES_DBG_CM, "Exit\n");
+        return 0;
+}
+
+
+/**
+ * nes_cm_event_handler
+ * worker function to handle cm events
+ * will free instance of nes_cm_event
+ */
+static void nes_cm_event_handler(struct work_struct *work)
+{
+        struct nes_cm_event *event = container_of(work, struct nes_cm_event, event_work);
+        struct nes_cm_core *cm_core;
+
+        if ((!event) || (!event->cm_node) || (!event->cm_node->cm_core)) {
+                return;
+        }
+        cm_core = event->cm_node->cm_core;
+        nes_debug(NES_DBG_CM, "event=%p, event->type=%u, events posted=%u\n",
+                        event, event->type, atomic_read(&cm_core->events_posted));
+
+        switch (event->type) {
+                case NES_CM_EVENT_MPA_REQ:
+                        cm_event_mpa_req(event);
+                        nes_debug(NES_DBG_CM, "CM Event: MPA REQUEST\n");
+                        break;
+                case NES_CM_EVENT_RESET:
+                        nes_debug(NES_DBG_CM, "CM Event: RESET\n");
+                        cm_event_reset(event);
+                        break;
+                case NES_CM_EVENT_CONNECTED:
+                        if ((!event->cm_node->cm_id) ||
+                                (event->cm_node->state != NES_CM_STATE_TSA)) {
+                                break;
+                        }
+                        cm_event_connected(event);
+                        nes_debug(NES_DBG_CM, "CM Event: CONNECTED\n");
+                        break;
+                case NES_CM_EVENT_ABORTED:
+                        if ((!event->cm_node->cm_id) || (event->cm_node->state == NES_CM_STATE_TSA)) {
+                                break;
+                        }
+                        cm_event_connect_error(event);
+                        nes_debug(NES_DBG_CM, "CM Event: ABORTED\n");
+                        break;
+                case NES_CM_EVENT_DROPPED_PKT:
+                        nes_debug(NES_DBG_CM, "CM Event: DROPPED PKT\n");
+                        break;
+                default:
+                        nes_debug(NES_DBG_CM, "CM Event: UNKNOWN EVENT TYPE\n");
+                        break;
+        }
+
+        atomic_dec(&cm_core->events_posted);
+        event->cm_info.cm_id->rem_ref(event->cm_info.cm_id);
+        rem_ref_cm_node(cm_core, event->cm_node);
+        kfree(event);
+
+        return;
+}