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path: root/drivers/infiniband/hw/nes/nes_cm.c
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Diffstat (limited to 'drivers/infiniband/hw/nes/nes_cm.c')
-rw-r--r--drivers/infiniband/hw/nes/nes_cm.c84
1 files changed, 42 insertions, 42 deletions
diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c
index dbd9a75474e3..11c7d6642014 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"
@@ -540,6 +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;
@@ -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;
@@ -854,7 +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);
@@ -871,9 +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;
}
@@ -1325,18 +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..
@@ -1344,11 +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;
@@ -1384,7 +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;
@@ -1398,17 +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);
@@ -1455,6 +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;
@@ -1518,7 +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 "
@@ -1652,49 +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 */
@@ -1706,15 +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:
@@ -1722,11 +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;
@@ -1741,9 +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;
}
@@ -1849,6 +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 "
@@ -1874,17 +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;
}
}
@@ -2710,7 +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);
@@ -2763,6 +2757,9 @@ int nes_accept(struct iw_cm_id *cm_id, struct iw_cm_conn_param *conn_param)
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;
}
@@ -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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