diff options
Diffstat (limited to 'drivers/infiniband/hw/nes/nes_cm.c')
-rw-r--r-- | drivers/infiniband/hw/nes/nes_cm.c | 106 |
1 files changed, 53 insertions, 53 deletions
diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c index 52425154acd..11c7d664201 100644 --- a/drivers/infiniband/hw/nes/nes_cm.c +++ b/drivers/infiniband/hw/nes/nes_cm.c @@ -56,6 +56,7 @@ #include <net/neighbour.h> #include <net/route.h> #include <net/ip_fib.h> +#include <net/tcp.h> #include "nes.h" @@ -426,6 +427,7 @@ int schedule_nes_timer(struct nes_cm_node *cm_node, struct sk_buff *skb, if (type == NES_TIMER_TYPE_CLOSE) { new_send->timetosend += (HZ/10); if (cm_node->recv_entry) { + kfree(new_send); WARN_ON(1); return -EINVAL; } @@ -445,8 +447,8 @@ int schedule_nes_timer(struct nes_cm_node *cm_node, struct sk_buff *skb, 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; + ret = NETDEV_TX_OK; } else { cm_packets_sent++; if (!send_retrans) { @@ -539,6 +541,7 @@ static void nes_cm_timer_tick(unsigned long pass) struct list_head *list_node; struct nes_cm_core *cm_core = g_cm_core; u32 settimer = 0; + unsigned long timetosend; int ret = NETDEV_TX_OK; struct list_head timer_list; @@ -630,7 +633,6 @@ static void nes_cm_timer_tick(unsigned long pass) nes_debug(NES_DBG_CM, "rexmit failed for " "node=%p\n", cm_node); cm_packets_bounced++; - atomic_dec(&send_entry->skb->users); send_entry->retrycount--; nexttimeout = jiffies + NES_SHORT_TIME; settimer = 1; @@ -644,8 +646,11 @@ static void nes_cm_timer_tick(unsigned long pass) send_entry->retrycount); if (send_entry->send_retrans) { send_entry->retranscount--; + timetosend = (NES_RETRY_TIMEOUT << + (NES_DEFAULT_RETRANS - send_entry->retranscount)); + send_entry->timetosend = jiffies + - NES_RETRY_TIMEOUT; + min(timetosend, NES_MAX_TIMEOUT); if (nexttimeout > send_entry->timetosend || !settimer) { nexttimeout = send_entry->timetosend; @@ -666,11 +671,6 @@ static void nes_cm_timer_tick(unsigned long pass) spin_unlock_irqrestore(&cm_node->retrans_list_lock, flags); rem_ref_cm_node(cm_node->cm_core, cm_node); - if (ret != NETDEV_TX_OK) { - nes_debug(NES_DBG_CM, "rexmit failed for cm_node=%p\n", - cm_node); - break; - } } if (settimer) { @@ -859,7 +859,6 @@ static struct nes_cm_listener *find_listener(struct nes_cm_core *cm_core, { unsigned long flags; struct nes_cm_listener *listen_node; - __be32 tmp_addr = cpu_to_be32(dst_addr); /* walk list and find cm_node associated with this session ID */ spin_lock_irqsave(&cm_core->listen_list_lock, flags); @@ -876,9 +875,6 @@ static struct nes_cm_listener *find_listener(struct nes_cm_core *cm_core, } spin_unlock_irqrestore(&cm_core->listen_list_lock, flags); - nes_debug(NES_DBG_CM, "Unable to find listener for %pI4:%x\n", - &tmp_addr, dst_port); - /* no listener */ return NULL; } @@ -1262,7 +1258,6 @@ static int rem_ref_cm_node(struct nes_cm_core *cm_core, cm_node->nesqp = NULL; } - cm_node->freed = 1; kfree(cm_node); return 0; } @@ -1331,18 +1326,20 @@ static void handle_fin_pkt(struct nes_cm_node *cm_node) nes_debug(NES_DBG_CM, "Received FIN, cm_node = %p, state = %u. " "refcnt=%d\n", cm_node, cm_node->state, atomic_read(&cm_node->ref_count)); - cm_node->tcp_cntxt.rcv_nxt++; - cleanup_retrans_entry(cm_node); switch (cm_node->state) { case NES_CM_STATE_SYN_RCVD: case NES_CM_STATE_SYN_SENT: case NES_CM_STATE_ESTABLISHED: case NES_CM_STATE_MPAREQ_SENT: case NES_CM_STATE_MPAREJ_RCVD: + cm_node->tcp_cntxt.rcv_nxt++; + cleanup_retrans_entry(cm_node); cm_node->state = NES_CM_STATE_LAST_ACK; send_fin(cm_node, NULL); break; case NES_CM_STATE_FIN_WAIT1: + cm_node->tcp_cntxt.rcv_nxt++; + cleanup_retrans_entry(cm_node); cm_node->state = NES_CM_STATE_CLOSING; send_ack(cm_node, NULL); /* Wait for ACK as this is simultanous close.. @@ -1350,11 +1347,15 @@ static void handle_fin_pkt(struct nes_cm_node *cm_node) * Just rm the node.. Done.. */ break; case NES_CM_STATE_FIN_WAIT2: + cm_node->tcp_cntxt.rcv_nxt++; + cleanup_retrans_entry(cm_node); cm_node->state = NES_CM_STATE_TIME_WAIT; send_ack(cm_node, NULL); schedule_nes_timer(cm_node, NULL, NES_TIMER_TYPE_CLOSE, 1, 0); break; case NES_CM_STATE_TIME_WAIT: + cm_node->tcp_cntxt.rcv_nxt++; + cleanup_retrans_entry(cm_node); cm_node->state = NES_CM_STATE_CLOSED; rem_ref_cm_node(cm_node->cm_core, cm_node); break; @@ -1390,7 +1391,6 @@ static void handle_rst_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb, passive_state = atomic_add_return(1, &cm_node->passive_state); if (passive_state == NES_SEND_RESET_EVENT) create_event(cm_node, NES_CM_EVENT_RESET); - cleanup_retrans_entry(cm_node); cm_node->state = NES_CM_STATE_CLOSED; dev_kfree_skb_any(skb); break; @@ -1404,17 +1404,16 @@ static void handle_rst_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb, active_open_err(cm_node, skb, reset); break; case NES_CM_STATE_CLOSED: - cleanup_retrans_entry(cm_node); drop_packet(skb); break; + case NES_CM_STATE_LAST_ACK: + cm_node->cm_id->rem_ref(cm_node->cm_id); case NES_CM_STATE_TIME_WAIT: - cleanup_retrans_entry(cm_node); cm_node->state = NES_CM_STATE_CLOSED; rem_ref_cm_node(cm_node->cm_core, cm_node); drop_packet(skb); break; case NES_CM_STATE_FIN_WAIT1: - cleanup_retrans_entry(cm_node); nes_debug(NES_DBG_CM, "Bad state %s[%u]\n", __func__, __LINE__); default: drop_packet(skb); @@ -1461,6 +1460,7 @@ static void handle_rcv_mpa(struct nes_cm_node *cm_node, struct sk_buff *skb) NES_PASSIVE_STATE_INDICATED); break; case NES_CM_STATE_MPAREQ_SENT: + cleanup_retrans_entry(cm_node); if (res_type == NES_MPA_REQUEST_REJECT) { type = NES_CM_EVENT_MPA_REJECT; cm_node->state = NES_CM_STATE_MPAREJ_RCVD; @@ -1524,7 +1524,7 @@ static int check_seq(struct nes_cm_node *cm_node, struct tcphdr *tcph, rcv_wnd = cm_node->tcp_cntxt.rcv_wnd; if (ack_seq != loc_seq_num) err = 1; - else if ((seq + rcv_wnd) < rcv_nxt) + else if (!between(seq, rcv_nxt, (rcv_nxt+rcv_wnd))) err = 1; if (err) { nes_debug(NES_DBG_CM, "%s[%u] create abort for cm_node=%p " @@ -1658,49 +1658,39 @@ static void handle_synack_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb, } } -static void handle_ack_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb, +static int handle_ack_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb, struct tcphdr *tcph) { int datasize = 0; u32 inc_sequence; u32 rem_seq_ack; u32 rem_seq; - int ret; + int ret = 0; int optionsize; optionsize = (tcph->doff << 2) - sizeof(struct tcphdr); if (check_seq(cm_node, tcph, skb)) - return; + return -EINVAL; skb_pull(skb, tcph->doff << 2); inc_sequence = ntohl(tcph->seq); rem_seq = ntohl(tcph->seq); rem_seq_ack = ntohl(tcph->ack_seq); datasize = skb->len; - cleanup_retrans_entry(cm_node); switch (cm_node->state) { case NES_CM_STATE_SYN_RCVD: /* Passive OPEN */ + cleanup_retrans_entry(cm_node); ret = handle_tcp_options(cm_node, tcph, skb, optionsize, 1); if (ret) break; cm_node->tcp_cntxt.rem_ack_num = ntohl(tcph->ack_seq); - if (cm_node->tcp_cntxt.rem_ack_num != - cm_node->tcp_cntxt.loc_seq_num) { - nes_debug(NES_DBG_CM, "rem_ack_num != loc_seq_num\n"); - cleanup_retrans_entry(cm_node); - send_reset(cm_node, skb); - return; - } cm_node->state = NES_CM_STATE_ESTABLISHED; - cleanup_retrans_entry(cm_node); if (datasize) { cm_node->tcp_cntxt.rcv_nxt = inc_sequence + datasize; handle_rcv_mpa(cm_node, skb); - } else { /* rcvd ACK only */ + } else /* rcvd ACK only */ dev_kfree_skb_any(skb); - cleanup_retrans_entry(cm_node); - } break; case NES_CM_STATE_ESTABLISHED: /* Passive OPEN */ @@ -1712,15 +1702,12 @@ static void handle_ack_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb, drop_packet(skb); break; case NES_CM_STATE_MPAREQ_SENT: - cleanup_retrans_entry(cm_node); cm_node->tcp_cntxt.rem_ack_num = ntohl(tcph->ack_seq); if (datasize) { cm_node->tcp_cntxt.rcv_nxt = inc_sequence + datasize; handle_rcv_mpa(cm_node, skb); - } else { /* Could be just an ack pkt.. */ - cleanup_retrans_entry(cm_node); + } else /* Could be just an ack pkt.. */ dev_kfree_skb_any(skb); - } break; case NES_CM_STATE_LISTENING: case NES_CM_STATE_CLOSED: @@ -1728,11 +1715,10 @@ static void handle_ack_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb, send_reset(cm_node, skb); break; case NES_CM_STATE_LAST_ACK: + case NES_CM_STATE_CLOSING: cleanup_retrans_entry(cm_node); cm_node->state = NES_CM_STATE_CLOSED; cm_node->cm_id->rem_ref(cm_node->cm_id); - case NES_CM_STATE_CLOSING: - cleanup_retrans_entry(cm_node); rem_ref_cm_node(cm_node->cm_core, cm_node); drop_packet(skb); break; @@ -1747,9 +1733,11 @@ static void handle_ack_pkt(struct nes_cm_node *cm_node, struct sk_buff *skb, case NES_CM_STATE_MPAREQ_RCVD: case NES_CM_STATE_UNKNOWN: default: + cleanup_retrans_entry(cm_node); drop_packet(skb); break; } + return ret; } @@ -1855,6 +1843,7 @@ static void process_packet(struct nes_cm_node *cm_node, struct sk_buff *skb, enum nes_tcpip_pkt_type pkt_type = NES_PKT_TYPE_UNKNOWN; struct tcphdr *tcph = tcp_hdr(skb); u32 fin_set = 0; + int ret = 0; skb_pull(skb, ip_hdr(skb)->ihl << 2); nes_debug(NES_DBG_CM, "process_packet: cm_node=%p state =%d syn=%d " @@ -1880,17 +1869,17 @@ static void process_packet(struct nes_cm_node *cm_node, struct sk_buff *skb, handle_synack_pkt(cm_node, skb, tcph); break; case NES_PKT_TYPE_ACK: - handle_ack_pkt(cm_node, skb, tcph); - if (fin_set) + ret = handle_ack_pkt(cm_node, skb, tcph); + if (fin_set && !ret) handle_fin_pkt(cm_node); break; case NES_PKT_TYPE_RST: handle_rst_pkt(cm_node, skb, tcph); break; default: - drop_packet(skb); - if (fin_set) + if ((fin_set) && (!check_seq(cm_node, tcph, skb))) handle_fin_pkt(cm_node); + drop_packet(skb); break; } } @@ -1999,13 +1988,17 @@ static struct nes_cm_node *mini_cm_connect(struct nes_cm_core *cm_core, 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); + if (!loopbackremotenode) { + rem_ref_cm_node(cm_node->cm_core, cm_node); + return NULL; + } + atomic_inc(&cm_loopbacks); loopbackremotenode->loopbackpartner = cm_node; loopbackremotenode->tcp_cntxt.rcv_wscale = NES_CM_DEFAULT_RCV_WND_SCALE; @@ -2690,6 +2683,7 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) struct ib_mr *ibmr = NULL; struct ib_phys_buf ibphysbuf; struct nes_pd *nespd; + u64 tagged_offset; @@ -2711,7 +2705,6 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) /* associate the node with the QP */ nesqp->cm_node = (void *)cm_node; cm_node->nesqp = nesqp; - nes_add_ref(&nesqp->ibqp); nes_debug(NES_DBG_CM, "QP%u, cm_node=%p, jiffies = %lu listener = %p\n", nesqp->hwqp.qp_id, cm_node, jiffies, cm_node->listener); @@ -2755,14 +2748,18 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) ibphysbuf.addr = nesqp->ietf_frame_pbase; ibphysbuf.size = conn_param->private_data_len + sizeof(struct ietf_mpa_frame); + tagged_offset = (u64)(unsigned long)nesqp->ietf_frame; ibmr = nesibdev->ibdev.reg_phys_mr((struct ib_pd *)nespd, &ibphysbuf, 1, IB_ACCESS_LOCAL_WRITE, - (u64 *)&nesqp->ietf_frame); + &tagged_offset); if (!ibmr) { nes_debug(NES_DBG_CM, "Unable to register memory region" "for lSMM for cm_node = %p \n", cm_node); + pci_free_consistent(nesdev->pcidev, + nesqp->private_data_len+sizeof(struct ietf_mpa_frame), + nesqp->ietf_frame, nesqp->ietf_frame_pbase); return -ENOMEM; } @@ -2782,7 +2779,7 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) sizeof(struct ietf_mpa_frame)); set_wqe_64bit_value(wqe->wqe_words, NES_IWARP_SQ_WQE_FRAG0_LOW_IDX, - (u64)nesqp->ietf_frame); + (u64)(unsigned long)nesqp->ietf_frame); wqe->wqe_words[NES_IWARP_SQ_WQE_LENGTH0_IDX] = cpu_to_le32(conn_param->private_data_len + sizeof(struct ietf_mpa_frame)); @@ -2879,6 +2876,7 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) /* notify OF layer that accept event was successful */ cm_id->add_ref(cm_id); + nes_add_ref(&nesqp->ibqp); cm_event.event = IW_CM_EVENT_ESTABLISHED; cm_event.status = IW_CM_EVENT_STATUS_ACCEPTED; @@ -2959,6 +2957,7 @@ int nes_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) struct nes_device *nesdev; struct nes_cm_node *cm_node; struct nes_cm_info cm_info; + int apbvt_set = 0; ibqp = nes_get_qp(cm_id->device, conn_param->qpn); if (!ibqp) @@ -2996,9 +2995,11 @@ int nes_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) conn_param->private_data_len); if (cm_id->local_addr.sin_addr.s_addr != - cm_id->remote_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); + apbvt_set = 1; + } /* set up the connection params for the node */ cm_info.loc_addr = htonl(cm_id->local_addr.sin_addr.s_addr); @@ -3015,8 +3016,7 @@ int nes_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) conn_param->private_data_len, (void *)conn_param->private_data, &cm_info); if (!cm_node) { - if (cm_id->local_addr.sin_addr.s_addr != - cm_id->remote_addr.sin_addr.s_addr) + if (apbvt_set) nes_manage_apbvt(nesvnic, ntohs(cm_id->local_addr.sin_port), PCI_FUNC(nesdev->pcidev->devfn), NES_MANAGE_APBVT_DEL); @@ -3025,7 +3025,7 @@ int nes_connect(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param) return -ENOMEM; } - cm_node->apbvt_set = 1; + cm_node->apbvt_set = apbvt_set; nesqp->cm_node = cm_node; cm_node->nesqp = nesqp; nes_add_ref(&nesqp->ibqp); 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