Release 4.7 drivers/infiniband/core/cm.c
/*
* Copyright (c) 2004-2007 Intel Corporation. All rights reserved.
* Copyright (c) 2004 Topspin Corporation. All rights reserved.
* Copyright (c) 2004, 2005 Voltaire Corporation. All rights reserved.
* Copyright (c) 2005 Sun Microsystems, 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.
*/
#include <linux/completion.h>
#include <linux/dma-mapping.h>
#include <linux/device.h>
#include <linux/module.h>
#include <linux/err.h>
#include <linux/idr.h>
#include <linux/interrupt.h>
#include <linux/random.h>
#include <linux/rbtree.h>
#include <linux/spinlock.h>
#include <linux/slab.h>
#include <linux/sysfs.h>
#include <linux/workqueue.h>
#include <linux/kdev_t.h>
#include <linux/etherdevice.h>
#include <rdma/ib_cache.h>
#include <rdma/ib_cm.h>
#include "cm_msgs.h"
MODULE_AUTHOR("Sean Hefty");
MODULE_DESCRIPTION("InfiniBand CM");
MODULE_LICENSE("Dual BSD/GPL");
static void cm_add_one(struct ib_device *device);
static void cm_remove_one(struct ib_device *device, void *client_data);
static struct ib_client cm_client = {
.name = "cm",
.add = cm_add_one,
.remove = cm_remove_one
};
static struct ib_cm {
spinlock_t lock;
struct list_head device_list;
rwlock_t device_lock;
struct rb_root listen_service_table;
u64 listen_service_id;
/* struct rb_root peer_service_table; todo: fix peer to peer */
struct rb_root remote_qp_table;
struct rb_root remote_id_table;
struct rb_root remote_sidr_table;
struct idr local_id_table;
__be32 random_id_operand;
struct list_head timewait_list;
struct workqueue_struct *wq;
}
cm;
/* Counter indexes ordered by attribute ID */
enum {
CM_REQ_COUNTER,
CM_MRA_COUNTER,
CM_REJ_COUNTER,
CM_REP_COUNTER,
CM_RTU_COUNTER,
CM_DREQ_COUNTER,
CM_DREP_COUNTER,
CM_SIDR_REQ_COUNTER,
CM_SIDR_REP_COUNTER,
CM_LAP_COUNTER,
CM_APR_COUNTER,
CM_ATTR_COUNT,
CM_ATTR_ID_OFFSET = 0x0010,
};
enum {
CM_XMIT,
CM_XMIT_RETRIES,
CM_RECV,
CM_RECV_DUPLICATES,
CM_COUNTER_GROUPS
};
static char const counter_group_names[CM_COUNTER_GROUPS]
[sizeof("cm_rx_duplicates")] = {
"cm_tx_msgs", "cm_tx_retries",
"cm_rx_msgs", "cm_rx_duplicates"
};
struct cm_counter_group {
struct kobject obj;
atomic_long_t counter[CM_ATTR_COUNT];
};
struct cm_counter_attribute {
struct attribute attr;
int index;
};
#define CM_COUNTER_ATTR(_name, _index) \
struct cm_counter_attribute cm_##_name##_counter_attr = { \
.attr = { .name = __stringify(_name), .mode = 0444 }, \
.index = _index \
}
static CM_COUNTER_ATTR(req, CM_REQ_COUNTER);
static CM_COUNTER_ATTR(mra, CM_MRA_COUNTER);
static CM_COUNTER_ATTR(rej, CM_REJ_COUNTER);
static CM_COUNTER_ATTR(rep, CM_REP_COUNTER);
static CM_COUNTER_ATTR(rtu, CM_RTU_COUNTER);
static CM_COUNTER_ATTR(dreq, CM_DREQ_COUNTER);
static CM_COUNTER_ATTR(drep, CM_DREP_COUNTER);
static CM_COUNTER_ATTR(sidr_req, CM_SIDR_REQ_COUNTER);
static CM_COUNTER_ATTR(sidr_rep, CM_SIDR_REP_COUNTER);
static CM_COUNTER_ATTR(lap, CM_LAP_COUNTER);
static CM_COUNTER_ATTR(apr, CM_APR_COUNTER);
static struct attribute *cm_counter_default_attrs[] = {
&cm_req_counter_attr.attr,
&cm_mra_counter_attr.attr,
&cm_rej_counter_attr.attr,
&cm_rep_counter_attr.attr,
&cm_rtu_counter_attr.attr,
&cm_dreq_counter_attr.attr,
&cm_drep_counter_attr.attr,
&cm_sidr_req_counter_attr.attr,
&cm_sidr_rep_counter_attr.attr,
&cm_lap_counter_attr.attr,
&cm_apr_counter_attr.attr,
NULL
};
struct cm_port {
struct cm_device *cm_dev;
struct ib_mad_agent *mad_agent;
struct kobject port_obj;
u8 port_num;
struct cm_counter_group counter_group[CM_COUNTER_GROUPS];
};
struct cm_device {
struct list_head list;
struct ib_device *ib_device;
struct device *device;
u8 ack_delay;
int going_down;
struct cm_port *port[0];
};
struct cm_av {
struct cm_port *port;
union ib_gid dgid;
struct ib_ah_attr ah_attr;
u16 pkey_index;
u8 timeout;
};
struct cm_work {
struct delayed_work work;
struct list_head list;
struct cm_port *port;
struct ib_mad_recv_wc *mad_recv_wc; /* Received MADs */
__be32 local_id; /* Established / timewait */
__be32 remote_id;
struct ib_cm_event cm_event;
struct ib_sa_path_rec path[0];
};
struct cm_timewait_info {
struct cm_work work; /* Must be first. */
struct list_head list;
struct rb_node remote_qp_node;
struct rb_node remote_id_node;
__be64 remote_ca_guid;
__be32 remote_qpn;
u8 inserted_remote_qp;
u8 inserted_remote_id;
};
struct cm_id_private {
struct ib_cm_id id;
struct rb_node service_node;
struct rb_node sidr_id_node;
spinlock_t lock; /* Do not acquire inside cm.lock */
struct completion comp;
atomic_t refcount;
/* Number of clients sharing this ib_cm_id. Only valid for listeners.
* Protected by the cm.lock spinlock. */
int listen_sharecount;
struct ib_mad_send_buf *msg;
struct cm_timewait_info *timewait_info;
/* todo: use alternate port on send failure */
struct cm_av av;
struct cm_av alt_av;
void *private_data;
__be64 tid;
__be32 local_qpn;
__be32 remote_qpn;
enum ib_qp_type qp_type;
__be32 sq_psn;
__be32 rq_psn;
int timeout_ms;
enum ib_mtu path_mtu;
__be16 pkey;
u8 private_data_len;
u8 max_cm_retries;
u8 peer_to_peer;
u8 responder_resources;
u8 initiator_depth;
u8 retry_count;
u8 rnr_retry_count;
u8 service_timeout;
u8 target_ack_delay;
struct list_head work_list;
atomic_t work_count;
};
static void cm_work_handler(struct work_struct *work);
static inline void cm_deref_id(struct cm_id_private *cm_id_priv)
{
if (atomic_dec_and_test(&cm_id_priv->refcount))
complete(&cm_id_priv->comp);
}
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| Total | 30 | 100.00% | 2 | 100.00% |
static int cm_alloc_msg(struct cm_id_private *cm_id_priv,
struct ib_mad_send_buf **msg)
{
struct ib_mad_agent *mad_agent;
struct ib_mad_send_buf *m;
struct ib_ah *ah;
mad_agent = cm_id_priv->av.port->mad_agent;
ah = ib_create_ah(mad_agent->qp->pd, &cm_id_priv->av.ah_attr);
if (IS_ERR(ah))
return PTR_ERR(ah);
m = ib_create_send_mad(mad_agent, cm_id_priv->id.remote_cm_qpn,
cm_id_priv->av.pkey_index,
0, IB_MGMT_MAD_HDR, IB_MGMT_MAD_DATA,
GFP_ATOMIC,
IB_MGMT_BASE_VERSION);
if (IS_ERR(m)) {
ib_destroy_ah(ah);
return PTR_ERR(m);
}
/* Timeout set by caller if response is expected. */
m->ah = ah;
m->retries = cm_id_priv->max_cm_retries;
atomic_inc(&cm_id_priv->refcount);
m->context[0] = cm_id_priv;
*msg = m;
return 0;
}
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| ira weiny | ira weiny | 2 | 1.23% | 1 | 25.00% |
| Total | 162 | 100.00% | 4 | 100.00% |
static int cm_alloc_response_msg(struct cm_port *port,
struct ib_mad_recv_wc *mad_recv_wc,
struct ib_mad_send_buf **msg)
{
struct ib_mad_send_buf *m;
struct ib_ah *ah;
ah = ib_create_ah_from_wc(port->mad_agent->qp->pd, mad_recv_wc->wc,
mad_recv_wc->recv_buf.grh, port->port_num);
if (IS_ERR(ah))
return PTR_ERR(ah);
m = ib_create_send_mad(port->mad_agent, 1, mad_recv_wc->wc->pkey_index,
0, IB_MGMT_MAD_HDR, IB_MGMT_MAD_DATA,
GFP_ATOMIC,
IB_MGMT_BASE_VERSION);
if (IS_ERR(m)) {
ib_destroy_ah(ah);
return PTR_ERR(m);
}
m->ah = ah;
*msg = m;
return 0;
}
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| ira weiny | ira weiny | 2 | 1.50% | 1 | 33.33% |
| Total | 133 | 100.00% | 3 | 100.00% |
static void cm_free_msg(struct ib_mad_send_buf *msg)
{
ib_destroy_ah(msg->ah);
if (msg->context[0])
cm_deref_id(msg->context[0]);
ib_free_send_mad(msg);
}
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static void * cm_copy_private_data(const void *private_data,
u8 private_data_len)
{
void *data;
if (!private_data || !private_data_len)
return NULL;
data = kmemdup(private_data, private_data_len, GFP_KERNEL);
if (!data)
return ERR_PTR(-ENOMEM);
return data;
}
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| Total | 56 | 100.00% | 2 | 100.00% |
static void cm_set_private_data(struct cm_id_private *cm_id_priv,
void *private_data, u8 private_data_len)
{
if (cm_id_priv->private_data && cm_id_priv->private_data_len)
kfree(cm_id_priv->private_data);
cm_id_priv->private_data = private_data;
cm_id_priv->private_data_len = private_data_len;
}
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static void cm_init_av_for_response(struct cm_port *port, struct ib_wc *wc,
struct ib_grh *grh, struct cm_av *av)
{
av->port = port;
av->pkey_index = wc->pkey_index;
ib_init_ah_from_wc(port->cm_dev->ib_device, port->port_num, wc,
grh, &av->ah_attr);
}
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| hal rosenstock | hal rosenstock | 48 | 77.42% | 1 | 33.33% |
| sean hefty | sean hefty | 13 | 20.97% | 1 | 33.33% |
| greg kroah-hartman | greg kroah-hartman | 1 | 1.61% | 1 | 33.33% |
| Total | 62 | 100.00% | 3 | 100.00% |
static int cm_init_av_by_path(struct ib_sa_path_rec *path, struct cm_av *av)
{
struct cm_device *cm_dev;
struct cm_port *port = NULL;
unsigned long flags;
int ret;
u8 p;
struct net_device *ndev = ib_get_ndev_from_path(path);
read_lock_irqsave(&cm.device_lock, flags);
list_for_each_entry(cm_dev, &cm.device_list, list) {
if (!ib_find_cached_gid(cm_dev->ib_device, &path->sgid,
path->gid_type, ndev, &p, NULL)) {
port = cm_dev->port[p-1];
break;
}
}
read_unlock_irqrestore(&cm.device_lock, flags);
if (ndev)
dev_put(ndev);
if (!port)
return -EINVAL;
ret = ib_find_cached_pkey(cm_dev->ib_device, port->port_num,
be16_to_cpu(path->pkey), &av->pkey_index);
if (ret)
return ret;
av->port = port;
ib_init_ah_from_path(cm_dev->ib_device, port->port_num, path,
&av->ah_attr);
av->timeout = path->packet_life_time + 1;
return 0;
}
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| matan barak | matan barak | 25 | 12.20% | 4 | 50.00% |
| sean hefty | sean hefty | 8 | 3.90% | 2 | 25.00% |
| greg kroah-hartman | greg kroah-hartman | 3 | 1.46% | 1 | 12.50% |
| Total | 205 | 100.00% | 8 | 100.00% |
static int cm_alloc_id(struct cm_id_private *cm_id_priv)
{
unsigned long flags;
int id;
idr_preload(GFP_KERNEL);
spin_lock_irqsave(&cm.lock, flags);
id = idr_alloc_cyclic(&cm.local_id_table, cm_id_priv, 0, 0, GFP_NOWAIT);
spin_unlock_irqrestore(&cm.lock, flags);
idr_preload_end();
cm_id_priv->id.local_id = (__force __be32)id ^ cm.random_id_operand;
return id < 0 ? id : 0;
}
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| hal rosenstock | hal rosenstock | 48 | 53.93% | 1 | 14.29% |
| tejun heo | tejun heo | 21 | 23.60% | 2 | 28.57% |
| sean hefty | sean hefty | 15 | 16.85% | 1 | 14.29% |
| al viro | al viro | 2 | 2.25% | 1 | 14.29% |
| zhao hongjiang | zhao hongjiang | 2 | 2.25% | 1 | 14.29% |
| michael s. tsirkin | michael s. tsirkin | 1 | 1.12% | 1 | 14.29% |
| Total | 89 | 100.00% | 7 | 100.00% |
static void cm_free_id(__be32 local_id)
{
spin_lock_irq(&cm.lock);
idr_remove(&cm.local_id_table,
(__force int) (local_id ^ cm.random_id_operand));
spin_unlock_irq(&cm.lock);
}
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| Total | 45 | 100.00% | 4 | 100.00% |
static struct cm_id_private * cm_get_id(__be32 local_id, __be32 remote_id)
{
struct cm_id_private *cm_id_priv;
cm_id_priv = idr_find(&cm.local_id_table,
(__force int) (local_id ^ cm.random_id_operand));
if (cm_id_priv) {
if (cm_id_priv->id.remote_id == remote_id)
atomic_inc(&cm_id_priv->refcount);
else
cm_id_priv = NULL;
}
return cm_id_priv;
}
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| Total | 73 | 100.00% | 3 | 100.00% |
static struct cm_id_private * cm_acquire_id(__be32 local_id, __be32 remote_id)
{
struct cm_id_private *cm_id_priv;
spin_lock_irq(&cm.lock);
cm_id_priv = cm_get_id(local_id, remote_id);
spin_unlock_irq(&cm.lock);
return cm_id_priv;
}
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| Total | 47 | 100.00% | 3 | 100.00% |
/*
* Trivial helpers to strip endian annotation and compare; the
* endianness doesn't actually matter since we just need a stable
* order for the RB tree.
*/
static int be32_lt(__be32 a, __be32 b)
{
return (__force u32) a < (__force u32) b;
}
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static int be32_gt(__be32 a, __be32 b)
{
return (__force u32) a > (__force u32) b;
}
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static int be64_lt(__be64 a, __be64 b)
{
return (__force u64) a < (__force u64) b;
}
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static int be64_gt(__be64 a, __be64 b)
{
return (__force u64) a > (__force u64) b;
}
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| Total | 25 | 100.00% | 1 | 100.00% |
static struct cm_id_private * cm_insert_listen(struct cm_id_private *cm_id_priv)
{
struct rb_node **link = &cm.listen_service_table.rb_node;
struct rb_node *parent = NULL;
struct cm_id_private *cur_cm_id_priv;
__be64 service_id = cm_id_priv->id.service_id;
__be64 service_mask = cm_id_priv->id.service_mask;
while (*link) {
parent = *link;
cur_cm_id_priv = rb_entry(parent, struct cm_id_private,
service_node);
if ((cur_cm_id_priv->id.service_mask & service_id) ==
(service_mask & cur_cm_id_priv->id.service_id) &&
(cm_id_priv->id.device == cur_cm_id_priv->id.device))
return cur_cm_id_priv;
if (cm_id_priv->id.device < cur_cm_id_priv->id.device)
link = &(*link)->rb_left;
else if (cm_id_priv->id.device > cur_cm_id_priv->id.device)
link = &(*link)->rb_right;
else if (be64_lt(service_id, cur_cm_id_priv->id.service_id))
link = &(*link)->rb_left;
else if (be64_gt(service_id, cur_cm_id_priv->id.service_id))
link = &(*link)->rb_right;
else
link = &(*link)->rb_right;
}
rb_link_node(&cm_id_priv->service_node, parent, link);
rb_insert_color(&cm_id_priv->service_node, &cm.listen_service_table);
return NULL;
}
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| roland dreier | roland dreier | 8 | 3.14% | 1 | 20.00% |
| Total | 255 | 100.00% | 5 | 100.00% |
static struct cm_id_private * cm_find_listen(struct ib_device *device,
__be64 service_id)
{
struct rb_node *node = cm.listen_service_table.rb_node;
struct cm_id_private *cm_id_priv;
while (node) {
cm_id_priv = rb_entry(node, struct cm_id_private, service_node);
if ((cm_id_priv->id.service_mask & service_id) ==
cm_id_priv->id.service_id &&
(cm_id_priv->id.device == device))
return cm_id_priv;
if (device < cm_id_priv->id.device)
node = node->rb_left;
else if (device > cm_id_priv->id.device)
node = node->rb_right;
else if (be64_lt(service_id, cm_id_priv->id.service_id))
node = node->rb_left;
else if (be64_gt(service_id, cm_id_priv->id.service_id))
node = node->rb_right;
else
node = node->rb_right;
}
return NULL;
}
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| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 94 | 57.32% | 1 | 20.00% |
| sean hefty | sean hefty | 62 | 37.80% | 3 | 60.00% |
| roland dreier | roland dreier | 8 | 4.88% | 1 | 20.00% |
| Total | 164 | 100.00% | 5 | 100.00% |
static struct cm_timewait_info * cm_insert_remote_id(struct cm_timewait_info
*timewait_info)
{
struct rb_node **link = &cm.remote_id_table.rb_node;
struct rb_node *parent = NULL;
struct cm_timewait_info *cur_timewait_info;
__be64 remote_ca_guid = timewait_info->remote_ca_guid;
__be32 remote_id = timewait_info->work.remote_id;
while (*link) {
parent = *link;
cur_timewait_info = rb_entry(parent, struct cm_timewait_info,
remote_id_node);
if (be32_lt(remote_id, cur_timewait_info->work.remote_id))
link = &(*link)->rb_left;
else if (be32_gt(remote_id, cur_timewait_info->work.remote_id))
link = &(*link)->rb_right;
else if (be64_lt(remote_ca_guid, cur_timewait_info->remote_ca_guid))
link = &(*link)->rb_left;
else if (be64_gt(remote_ca_guid, cur_timewait_info->remote_ca_guid))
link = &(*link)->rb_right;
else
return cur_timewait_info;
}
timewait_info->inserted_remote_id = 1;
rb_link_node(&timewait_info->remote_id_node, parent, link);
rb_insert_color(&timewait_info->remote_id_node, &cm.remote_id_table);
return NULL;
}
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| sean hefty | sean hefty | 2 | 0.97% | 1 | 33.33% |
| Total | 207 | 100.00% | 3 | 100.00% |
static struct cm_timewait_info * cm_find_remote_id(__be64 remote_ca_guid,
__be32 remote_id)
{
struct rb_node *node = cm.remote_id_table.rb_node;
struct cm_timewait_info *timewait_info;
while (node) {
timewait_info = rb_entry(node, struct cm_timewait_info,
remote_id_node);
if (be32_lt(remote_id, timewait_info->work.remote_id))
node = node->rb_left;
else if (be32_gt(remote_id, timewait_info->work.remote_id))
node = node->rb_right;
else if (be64_lt(remote_ca_guid, timewait_info->remote_ca_guid))
node = node->rb_left;
else if (be64_gt(remote_ca_guid, timewait_info->remote_ca_guid))
node = node->rb_right;
else
return timewait_info;
}
return NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 112 | 86.15% | 1 | 33.33% |
| roland dreier | roland dreier | 16 | 12.31% | 1 | 33.33% |
| sean hefty | sean hefty | 2 | 1.54% | 1 | 33.33% |
| Total | 130 | 100.00% | 3 | 100.00% |
static struct cm_timewait_info * cm_insert_remote_qpn(struct cm_timewait_info
*timewait_info)
{
struct rb_node **link = &cm.remote_qp_table.rb_node;
struct rb_node *parent = NULL;
struct cm_timewait_info *cur_timewait_info;
__be64 remote_ca_guid = timewait_info->remote_ca_guid;
__be32 remote_qpn = timewait_info->remote_qpn;
while (*link) {
parent = *link;
cur_timewait_info = rb_entry(parent, struct cm_timewait_info,
remote_qp_node);
if (be32_lt(remote_qpn, cur_timewait_info->remote_qpn))
link = &(*link)->rb_left;
else if (be32_gt(remote_qpn, cur_timewait_info->remote_qpn))
link = &(*link)->rb_right;
else if (be64_lt(remote_ca_guid, cur_timewait_info->remote_ca_guid))
link = &(*link)->rb_left;
else if (be64_gt(remote_ca_guid, cur_timewait_info->remote_ca_guid))
link = &(*link)->rb_right;
else
return cur_timewait_info;
}
timewait_info->inserted_remote_qp = 1;
rb_link_node(&timewait_info->remote_qp_node, parent, link);
rb_insert_color(&timewait_info->remote_qp_node, &cm.remote_qp_table);
return NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 183 | 91.04% | 1 | 33.33% |
| roland dreier | roland dreier | 16 | 7.96% | 1 | 33.33% |
| sean hefty | sean hefty | 2 | 1.00% | 1 | 33.33% |
| Total | 201 | 100.00% | 3 | 100.00% |
static struct cm_id_private * cm_insert_remote_sidr(struct cm_id_private
*cm_id_priv)
{
struct rb_node **link = &cm.remote_sidr_table.rb_node;
struct rb_node *parent = NULL;
struct cm_id_private *cur_cm_id_priv;
union ib_gid *port_gid = &cm_id_priv->av.dgid;
__be32 remote_id = cm_id_priv->id.remote_id;
while (*link) {
parent = *link;
cur_cm_id_priv = rb_entry(parent, struct cm_id_private,
sidr_id_node);
if (be32_lt(remote_id, cur_cm_id_priv->id.remote_id))
link = &(*link)->rb_left;
else if (be32_gt(remote_id, cur_cm_id_priv->id.remote_id))
link = &(*link)->rb_right;
else {
int cmp;
cmp = memcmp(port_gid, &cur_cm_id_priv->av.dgid,
sizeof *port_gid);
if (cmp < 0)
link = &(*link)->rb_left;
else if (cmp > 0)
link = &(*link)->rb_right;
else
return cur_cm_id_priv;
}
}
rb_link_node(&cm_id_priv->sidr_id_node, parent, link);
rb_insert_color(&cm_id_priv->sidr_id_node, &cm.remote_sidr_table);
return NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 210 | 95.89% | 1 | 33.33% |
| roland dreier | roland dreier | 8 | 3.65% | 1 | 33.33% |
| sean hefty | sean hefty | 1 | 0.46% | 1 | 33.33% |
| Total | 219 | 100.00% | 3 | 100.00% |
static void cm_reject_sidr_req(struct cm_id_private *cm_id_priv,
enum ib_cm_sidr_status status)
{
struct ib_cm_sidr_rep_param param;
memset(¶m, 0, sizeof param);
param.status = status;
ib_send_cm_sidr_rep(&cm_id_priv->id, ¶m);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 47 | 100.00% | 1 | 100.00% |
| Total | 47 | 100.00% | 1 | 100.00% |
struct ib_cm_id *ib_create_cm_id(struct ib_device *device,
ib_cm_handler cm_handler,
void *context)
{
struct cm_id_private *cm_id_priv;
int ret;
cm_id_priv = kzalloc(sizeof *cm_id_priv, GFP_KERNEL);
if (!cm_id_priv)
return ERR_PTR(-ENOMEM);
cm_id_priv->id.state = IB_CM_IDLE;
cm_id_priv->id.device = device;
cm_id_priv->id.cm_handler = cm_handler;
cm_id_priv->id.context = context;
cm_id_priv->id.remote_cm_qpn = 1;
ret = cm_alloc_id(cm_id_priv);
if (ret)
goto error;
spin_lock_init(&cm_id_priv->lock);
init_completion(&cm_id_priv->comp);
INIT_LIST_HEAD(&cm_id_priv->work_list);
atomic_set(&cm_id_priv->work_count, -1);
atomic_set(&cm_id_priv->refcount, 1);
return &cm_id_priv->id;
error:
kfree(cm_id_priv);
return ERR_PTR(-ENOMEM);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 145 | 85.80% | 1 | 20.00% |
| sean hefty | sean hefty | 15 | 8.88% | 2 | 40.00% |
| john kingman | john kingman | 8 | 4.73% | 1 | 20.00% |
| roland dreier | roland dreier | 1 | 0.59% | 1 | 20.00% |
| Total | 169 | 100.00% | 5 | 100.00% |
EXPORT_SYMBOL(ib_create_cm_id);
static struct cm_work * cm_dequeue_work(struct cm_id_private *cm_id_priv)
{
struct cm_work *work;
if (list_empty(&cm_id_priv->work_list))
return NULL;
work = list_entry(cm_id_priv->work_list.next, struct cm_work, list);
list_del(&work->list);
return work;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 58 | 100.00% | 1 | 100.00% |
| Total | 58 | 100.00% | 1 | 100.00% |
static void cm_free_work(struct cm_work *work)
{
if (work->mad_recv_wc)
ib_free_recv_mad(work->mad_recv_wc);
kfree(work);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 29 | 100.00% | 1 | 100.00% |
| Total | 29 | 100.00% | 1 | 100.00% |
static inline int cm_convert_to_ms(int iba_time)
{
/* approximate conversion to ms from 4.096us x 2^iba_time */
return 1 << max(iba_time - 8, 0);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 23 | 100.00% | 1 | 100.00% |
| Total | 23 | 100.00% | 1 | 100.00% |
/*
* calculate: 4.096x2^ack_timeout = 4.096x2^ack_delay + 2x4.096x2^life_time
* Because of how ack_timeout is stored, adding one doubles the timeout.
* To avoid large timeouts, select the max(ack_delay, life_time + 1), and
* increment it (round up) only if the other is within 50%.
*/
static u8 cm_ack_timeout(u8 ca_ack_delay, u8 packet_life_time)
{
int ack_timeout = packet_life_time + 1;
if (ack_timeout >= ca_ack_delay)
ack_timeout += (ca_ack_delay >= (ack_timeout - 1));
else
ack_timeout = ca_ack_delay +
(ack_timeout >= (ca_ack_delay - 1));
return min(31, ack_timeout);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| sean hefty | sean hefty | 60 | 100.00% | 1 | 100.00% |
| Total | 60 | 100.00% | 1 | 100.00% |
static void cm_cleanup_timewait(struct cm_timewait_info *timewait_info)
{
if (timewait_info->inserted_remote_id) {
rb_erase(&timewait_info->remote_id_node, &cm.remote_id_table);
timewait_info->inserted_remote_id = 0;
}
if (timewait_info->inserted_remote_qp) {
rb_erase(&timewait_info->remote_qp_node, &cm.remote_qp_table);
timewait_info->inserted_remote_qp = 0;
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 65 | 100.00% | 1 | 100.00% |
| Total | 65 | 100.00% | 1 | 100.00% |
static struct cm_timewait_info * cm_create_timewait_info(__be32 local_id)
{
struct cm_timewait_info *timewait_info;
timewait_info = kzalloc(sizeof *timewait_info, GFP_KERNEL);
if (!timewait_info)
return ERR_PTR(-ENOMEM);
timewait_info->work.local_id = local_id;
INIT_DELAYED_WORK(&timewait_info->work.work, cm_work_handler);
timewait_info->work.cm_event.event = IB_CM_TIMEWAIT_EXIT;
return timewait_info;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 69 | 95.83% | 1 | 25.00% |
| david howells | david howells | 1 | 1.39% | 1 | 25.00% |
| sean hefty | sean hefty | 1 | 1.39% | 1 | 25.00% |
| roland dreier | roland dreier | 1 | 1.39% | 1 | 25.00% |
| Total | 72 | 100.00% | 4 | 100.00% |
static void cm_enter_timewait(struct cm_id_private *cm_id_priv)
{
int wait_time;
unsigned long flags;
struct cm_device *cm_dev;
cm_dev = ib_get_client_data(cm_id_priv->id.device, &cm_client);
if (!cm_dev)
return;
spin_lock_irqsave(&cm.lock, flags);
cm_cleanup_timewait(cm_id_priv->timewait_info);
list_add_tail(&cm_id_priv->timewait_info->list, &cm.timewait_list);
spin_unlock_irqrestore(&cm.lock, flags);
/*
* The cm_id could be destroyed by the user before we exit timewait.
* To protect against this, we search for the cm_id after exiting
* timewait before notifying the user that we've exited timewait.
*/
cm_id_priv->id.state = IB_CM_TIMEWAIT;
wait_time = cm_convert_to_ms(cm_id_priv->av.timeout);
/* Check if the device started its remove_one */
spin_lock_irqsave(&cm.lock, flags);
if (!cm_dev->going_down)
queue_delayed_work(cm.wq, &cm_id_priv->timewait_info->work.work,
msecs_to_jiffies(wait_time));
spin_unlock_irqrestore(&cm.lock, flags);
cm_id_priv->timewait_info = NULL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 58 | 36.25% | 1 | 14.29% |
| erez shitrit | erez shitrit | 47 | 29.38% | 1 | 14.29% |
| sean hefty | sean hefty | 42 | 26.25% | 3 | 42.86% |
| michael s. tsirkin | michael s. tsirkin | 7 | 4.38% | 1 | 14.29% |
| bart van assche | bart van assche | 6 | 3.75% | 1 | 14.29% |
| Total | 160 | 100.00% | 7 | 100.00% |
static void cm_reset_to_idle(struct cm_id_private *cm_id_priv)
{
unsigned long flags;
cm_id_priv->id.state = IB_CM_IDLE;
if (cm_id_priv->timewait_info) {
spin_lock_irqsave(&cm.lock, flags);
cm_cleanup_timewait(cm_id_priv->timewait_info);
spin_unlock_irqrestore(&cm.lock, flags);
kfree(cm_id_priv->timewait_info);
cm_id_priv->timewait_info = NULL;
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 47 | 66.20% | 1 | 50.00% |
| sean hefty | sean hefty | 24 | 33.80% | 1 | 50.00% |
| Total | 71 | 100.00% | 2 | 100.00% |
static void cm_destroy_id(struct ib_cm_id *cm_id, int err)
{
struct cm_id_private *cm_id_priv;
struct cm_work *work;
cm_id_priv = container_of(cm_id, struct cm_id_private, id);
retest:
spin_lock_irq(&cm_id_priv->lock);
switch (cm_id->state) {
case IB_CM_LISTEN:
spin_unlock_irq(&cm_id_priv->lock);
spin_lock_irq(&cm.lock);
if (--cm_id_priv->listen_sharecount > 0) {
/* The id is still shared. */
cm_deref_id(cm_id_priv);
spin_unlock_irq(&cm.lock);
return;
}
rb_erase(&cm_id_priv->service_node, &cm.listen_service_table);
spin_unlock_irq(&cm.lock);
break;
case IB_CM_SIDR_REQ_SENT:
cm_id->state = IB_CM_IDLE;
ib_cancel_mad(cm_id_priv->av.port->mad_agent, cm_id_priv->msg);
spin_unlock_irq(&cm_id_priv->lock);
break;
case IB_CM_SIDR_REQ_RCVD:
spin_unlock_irq(&cm_id_priv->lock);
cm_reject_sidr_req(cm_id_priv, IB_SIDR_REJECT);
spin_lock_irq(&cm.lock);
if (!RB_EMPTY_NODE(&cm_id_priv->sidr_id_node))
rb_erase(&cm_id_priv->sidr_id_node,
&cm.remote_sidr_table);
spin_unlock_irq(&cm.lock);
break;
case IB_CM_REQ_SENT:
case IB_CM_MRA_REQ_RCVD:
ib_cancel_mad(cm_id_priv->av.port->mad_agent, cm_id_priv->msg);
spin_unlock_irq(&cm_id_priv->lock);
ib_send_cm_rej(cm_id, IB_CM_REJ_TIMEOUT,
&cm_id_priv->id.device->node_guid,
sizeof cm_id_priv->id.device->node_guid,
NULL, 0);
break;
case IB_CM_REQ_RCVD:
if (err == -ENOMEM) {
/* Do not reject to allow future retries. */
cm_reset_to_idle(cm_id_priv);
spin_unlock_irq(&cm_id_priv->lock);
} else {
spin_unlock_irq(&cm_id_priv->lock);
ib_send_cm_rej(cm_id, IB_CM_REJ_CONSUMER_DEFINED,
NULL, 0, NULL, 0);
}
break;
case IB_CM_REP_SENT:
case IB_CM_MRA_REP_RCVD:
ib_cancel_mad(cm_id_priv->av.port->mad_agent, cm_id_priv->msg);
/* Fall through */
case IB_CM_MRA_REQ_SENT:
case IB_CM_REP_RCVD:
case IB_CM_MRA_REP_SENT:
spin_unlock_irq(&cm_id_priv->lock);
ib_send_cm_rej(cm_id, IB_CM_REJ_CONSUMER_DEFINED,
NULL, 0, NULL, 0);
break;
case IB_CM_ESTABLISHED:
spin_unlock_irq(&cm_id_priv->lock);
if (cm_id_priv->qp_type == IB_QPT_XRC_TGT)
break;
ib_send_cm_dreq(cm_id, NULL, 0);
goto retest;
case IB_CM_DREQ_SENT:
ib_cancel_mad(cm_id_priv->av.port->mad_agent, cm_id_priv->msg);
cm_enter_timewait(cm_id_priv);
spin_unlock_irq(&cm_id_priv->lock);
break;
case IB_CM_DREQ_RCVD:
spin_unlock_irq(&cm_id_priv->lock);
ib_send_cm_drep(cm_id, NULL, 0);
break;
default:
spin_unlock_irq(&cm_id_priv->lock);
break;
}
cm_free_id(cm_id->local_id);
cm_deref_id(cm_id_priv);
wait_for_completion(&cm_id_priv->comp);
while ((work = cm_dequeue_work(cm_id_priv)) != NULL)
cm_free_work(work);
kfree(cm_id_priv->private_data);
kfree(cm_id_priv);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 317 | 60.38% | 1 | 9.09% |
| sean hefty | sean hefty | 83 | 15.81% | 6 | 54.55% |
| michael s. tsirkin | michael s. tsirkin | 56 | 10.67% | 1 | 9.09% |
| doron tsur | doron tsur | 40 | 7.62% | 1 | 9.09% |
| haggai eran | haggai eran | 26 | 4.95% | 1 | 9.09% |
| ted kim | ted kim | 3 | 0.57% | 1 | 9.09% |
| Total | 525 | 100.00% | 11 | 100.00% |
void ib_destroy_cm_id(struct ib_cm_id *cm_id)
{
cm_destroy_id(cm_id, 0);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| michael s. tsirkin | michael s. tsirkin | 17 | 100.00% | 1 | 100.00% |
| Total | 17 | 100.00% | 1 | 100.00% |
EXPORT_SYMBOL(ib_destroy_cm_id);
/**
* __ib_cm_listen - Initiates listening on the specified service ID for
* connection and service ID resolution requests.
* @cm_id: Connection identifier associated with the listen request.
* @service_id: Service identifier matched against incoming connection
* and service ID resolution requests. The service ID should be specified
* network-byte order. If set to IB_CM_ASSIGN_SERVICE_ID, the CM will
* assign a service ID to the caller.
* @service_mask: Mask applied to service ID used to listen across a
* range of service IDs. If set to 0, the service ID is matched
* exactly. This parameter is ignored if %service_id is set to
* IB_CM_ASSIGN_SERVICE_ID.
*/
static int __ib_cm_listen(struct ib_cm_id *cm_id, __be64 service_id,
__be64 service_mask)
{
struct cm_id_private *cm_id_priv, *cur_cm_id_priv;
int ret = 0;
service_mask = service_mask ? service_mask : ~cpu_to_be64(0);
service_id &= service_mask;
if ((service_id & IB_SERVICE_ID_AGN_MASK) == IB_CM_ASSIGN_SERVICE_ID &&
(service_id != IB_CM_ASSIGN_SERVICE_ID))
return -EINVAL;
cm_id_priv = container_of(cm_id, struct cm_id_private, id);
if (cm_id->state != IB_CM_IDLE)
return -EINVAL;
cm_id->state = IB_CM_LISTEN;
++cm_id_priv->listen_sharecount;
if (service_id == IB_CM_ASSIGN_SERVICE_ID) {
cm_id->service_id = cpu_to_be64(cm.listen_service_id++);
cm_id->service_mask = ~cpu_to_be64(0);
} else {
cm_id->service_id = service_id;
cm_id->service_mask = service_mask;
}
cur_cm_id_priv = cm_insert_listen(cm_id_priv);
if (cur_cm_id_priv) {
cm_id->state = IB_CM_IDLE;
--cm_id_priv->listen_sharecount;
ret = -EBUSY;
}
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 148 | 83.15% | 1 | 20.00% |
| haggai eran | haggai eran | 12 | 6.74% | 1 | 20.00% |
| sean hefty | sean hefty | 12 | 6.74% | 2 | 40.00% |
| harvey harrison | harvey harrison | 6 | 3.37% | 1 | 20.00% |
| Total | 178 | 100.00% | 5 | 100.00% |
int ib_cm_listen(struct ib_cm_id *cm_id, __be64 service_id, __be64 service_mask)
{
unsigned long flags;
int ret;
spin_lock_irqsave(&cm.lock, flags);
ret = __ib_cm_listen(cm_id, service_id, service_mask);
spin_unlock_irqrestore(&cm.lock, flags);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| haggai eran | haggai eran | 57 | 100.00% | 2 | 100.00% |
| Total | 57 | 100.00% | 2 | 100.00% |
EXPORT_SYMBOL(ib_cm_listen);
/**
* Create a new listening ib_cm_id and listen on the given service ID.
*
* If there's an existing ID listening on that same device and service ID,
* return it.
*
* @device: Device associated with the cm_id. All related communication will
* be associated with the specified device.
* @cm_handler: Callback invoked to notify the user of CM events.
* @service_id: Service identifier matched against incoming connection
* and service ID resolution requests. The service ID should be specified
* network-byte order. If set to IB_CM_ASSIGN_SERVICE_ID, the CM will
* assign a service ID to the caller.
*
* Callers should call ib_destroy_cm_id when done with the listener ID.
*/
struct ib_cm_id *ib_cm_insert_listen(struct ib_device *device,
ib_cm_handler cm_handler,
__be64 service_id)
{
struct cm_id_private *cm_id_priv;
struct ib_cm_id *cm_id;
unsigned long flags;
int err = 0;
/* Create an ID in advance, since the creation may sleep */
cm_id = ib_create_cm_id(device, cm_handler, NULL);
if (IS_ERR(cm_id))
return cm_id;
spin_lock_irqsave(&cm.lock, flags);
if (service_id == IB_CM_ASSIGN_SERVICE_ID)
goto new_id;
/* Find an existing ID */
cm_id_priv = cm_find_listen(device, service_id);
if (cm_id_priv) {
if (cm_id->cm_handler != cm_handler || cm_id->context) {
/* Sharing an ib_cm_id with different handlers is not
* supported */
spin_unlock_irqrestore(&cm.lock, flags);
return ERR_PTR(-EINVAL);
}
atomic_inc(&cm_id_priv->refcount);
++cm_id_priv->listen_sharecount;
spin_unlock_irqrestore(&cm.lock, flags);
ib_destroy_cm_id(cm_id);
cm_id = &cm_id_priv->id;
return cm_id;
}
new_id:
/* Use newly created ID */
err = __ib_cm_listen(cm_id, service_id, 0);
spin_unlock_irqrestore(&cm.lock, flags);
if (err) {
ib_destroy_cm_id(cm_id);
return ERR_PTR(err);
}
return cm_id;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| haggai eran | haggai eran | 208 | 100.00% | 1 | 100.00% |
| Total | 208 | 100.00% | 1 | 100.00% |
EXPORT_SYMBOL(ib_cm_insert_listen);
static __be64 cm_form_tid(struct cm_id_private *cm_id_priv,
enum cm_msg_sequence msg_seq)
{
u64 hi_tid, low_tid;
hi_tid = ((u64) cm_id_priv->av.port->mad_agent->hi_tid) << 32;
low_tid = (u64) ((__force u32)cm_id_priv->id.local_id |
(msg_seq << 30));
return cpu_to_be64(hi_tid | low_tid);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 65 | 92.86% | 1 | 50.00% |
| sean hefty | sean hefty | 5 | 7.14% | 1 | 50.00% |
| Total | 70 | 100.00% | 2 | 100.00% |
static void cm_format_mad_hdr(struct ib_mad_hdr *hdr,
__be16 attr_id, __be64 tid)
{
hdr->base_version = IB_MGMT_BASE_VERSION;
hdr->mgmt_class = IB_MGMT_CLASS_CM;
hdr->class_version = IB_CM_CLASS_VERSION;
hdr->method = IB_MGMT_METHOD_SEND;
hdr->attr_id = attr_id;
hdr->tid = tid;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 51 | 96.23% | 1 | 50.00% |
| sean hefty | sean hefty | 2 | 3.77% | 1 | 50.00% |
| Total | 53 | 100.00% | 2 | 100.00% |
static void cm_format_req(struct cm_req_msg *req_msg,
struct cm_id_private *cm_id_priv,
struct ib_cm_req_param *param)
{
struct ib_sa_path_rec *pri_path = param->primary_path;
struct ib_sa_path_rec *alt_path = param->alternate_path;
cm_format_mad_hdr(&req_msg->hdr, CM_REQ_ATTR_ID,
cm_form_tid(cm_id_priv, CM_MSG_SEQUENCE_REQ));
req_msg->local_comm_id = cm_id_priv->id.local_id;
req_msg->service_id = param->service_id;
req_msg->local_ca_guid = cm_id_priv->id.device->node_guid;
cm_req_set_local_qpn(req_msg, cpu_to_be32(param->qp_num));
cm_req_set_init_depth(req_msg, param->initiator_depth);
cm_req_set_remote_resp_timeout(req_msg,
param->remote_cm_response_timeout);
cm_req_set_qp_type(req_msg, param->qp_type);
cm_req_set_flow_ctrl(req_msg, param->flow_control);
cm_req_set_starting_psn(req_msg, cpu_to_be32(param->starting_psn));
cm_req_set_local_resp_timeout(req_msg,
param->local_cm_response_timeout);
req_msg->pkey = param->primary_path->pkey;
cm_req_set_path_mtu(req_msg, param->primary_path->mtu);
cm_req_set_max_cm_retries(req_msg, param->max_cm_retries);
if (param->qp_type != IB_QPT_XRC_INI) {
cm_req_set_resp_res(req_msg, param->responder_resources);
cm_req_set_retry_count(req_msg, param->retry_count);
cm_req_set_rnr_retry_count(req_msg, param->rnr_retry_count);
cm_req_set_srq(req_msg, param->srq);
}
if (pri_path->hop_limit <= 1) {
req_msg->primary_local_lid = pri_path->slid;
req_msg->primary_remote_lid = pri_path->dlid;
} else {
/* Work-around until there's a way to obtain remote LID info */
req_msg->primary_local_lid = IB_LID_PERMISSIVE;
req_msg->primary_remote_lid = IB_LID_PERMISSIVE;
}
req_msg->primary_local_gid = pri_path->sgid;
req_msg->primary_remote_gid = pri_path->dgid;
cm_req_set_primary_flow_label(req_msg, pri_path->flow_label);
cm_req_set_primary_packet_rate(req_msg, pri_path->rate);
req_msg->primary_traffic_class = pri_path->traffic_class;
req_msg->primary_hop_limit = pri_path->hop_limit;
cm_req_set_primary_sl(req_msg, pri_path->sl);
cm_req_set_primary_subnet_local(req_msg, (pri_path->hop_limit <= 1));
cm_req_set_primary_local_ack_timeout(req_msg,
cm_ack_timeout(cm_id_priv->av.port->cm_dev->ack_delay,
pri_path->packet_life_time));
if (alt_path) {
if (alt_path->hop_limit <= 1) {
req_msg->alt_local_lid = alt_path->slid;
req_msg->alt_remote_lid = alt_path->dlid;
} else {
req_msg->alt_local_lid = IB_LID_PERMISSIVE;
req_msg->alt_remote_lid = IB_LID_PERMISSIVE;
}
req_msg->alt_local_gid = alt_path->sgid;
req_msg->alt_remote_gid = alt_path->dgid;
cm_req_set_alt_flow_label(req_msg,
alt_path->flow_label);
cm_req_set_alt_packet_rate(req_msg, alt_path->rate);
req_msg->alt_traffic_class = alt_path->traffic_class;
req_msg->alt_hop_limit = alt_path->hop_limit;
cm_req_set_alt_sl(req_msg, alt_path->sl);
cm_req_set_alt_subnet_local(req_msg, (alt_path->hop_limit <= 1));
cm_req_set_alt_local_ack_timeout(req_msg,
cm_ack_timeout(cm_id_priv->av.port->cm_dev->ack_delay,
alt_path->packet_life_time));
}
if (param->private_data && param->private_data_len)
memcpy(req_msg->private_data, param->private_data,
param->private_data_len);
}
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| Total | 533 | 100.00% | 5 | 100.00% |
static int cm_validate_req_param(struct ib_cm_req_param *param)
{
/* peer-to-peer not supported */
if (param->peer_to_peer)
return -EINVAL;
if (!param->primary_path)
return -EINVAL;
if (param->qp_type != IB_QPT_RC && param->qp_type != IB_QPT_UC &&
param->qp_type != IB_QPT_XRC_INI)
return -EINVAL;
if (param->private_data &&
param->private_data_len > IB_CM_REQ_PRIVATE_DATA_SIZE)
return -EINVAL;
if (param->alternate_path &&
(param->alternate_path->pkey != param->primary_path->pkey ||
param->alternate_path->mtu != param->primary_path->mtu))
return -EINVAL;
return 0;
}
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| Total | 112 | 100.00% | 2 | 100.00% |
int ib_send_cm_req(struct ib_cm_id *cm_id,
struct ib_cm_req_param *param)
{
struct cm_id_private *cm_id_priv;
struct cm_req_msg *req_msg;
unsigned long flags;
int ret;
ret = cm_validate_req_param(param);
if (ret)
return ret;
/* Verify that we're not in timewait. */
cm_id_priv = container_of(cm_id, struct cm_id_private, id);
spin_lock_irqsave(&cm_id_priv->lock, flags);
if (cm_id->state != IB_CM_IDLE) {
spin_unlock_irqrestore(&cm_id_priv->lock, flags);
ret = -EINVAL;
goto out;
}
spin_unlock_irqrestore(&cm_id_priv->lock, flags);
cm_id_priv->timewait_info = cm_create_timewait_info(cm_id_priv->
id.local_id);
if (IS_ERR(cm_id_priv->timewait_info)) {
ret = PTR_ERR(cm_id_priv->timewait_info);
goto out;
}
ret = cm_init_av_by_path(param->primary_path, &cm_id_priv->av);
if (ret)
goto error1;
if (param->alternate_path) {
ret = cm_init_av_by_path(param->alternate_path,
&cm_id_priv->alt_av);
if (ret)
goto error1;
}
cm_id->service_id = param->service_id;
cm_id->service_mask = ~cpu_to_be64(0);
cm_id_priv->timeout_ms = cm_convert_to_ms(
param->primary_path->packet_life_time) * 2 +
cm_convert_to_ms(
param->remote_cm_response_timeout);
cm_id_priv->max_cm_retries = param->max_cm_retries;
cm_id_priv->initiator_depth = param->initiator_depth;
cm_id_priv->responder_resources = param->responder_resources;
cm_id_priv->retry_count = param->retry_count;
cm_id_priv->path_mtu = param->primary_path->mtu;
cm_id_priv->pkey = param->primary_path->pkey;
cm_id_priv->qp_type = param->qp_type;
ret = cm_alloc_msg(cm_id_priv, &cm_id_priv->msg);
if (ret)
goto error1;
req_msg = (struct cm_req_msg *) cm_id_priv->msg->mad;
cm_format_req(req_msg, cm_id_priv, param);
cm_id_priv->tid = req_msg->hdr.tid;
cm_id_priv->msg->timeout_ms = cm_id_priv->timeout_ms;
cm_id_priv->msg->context[1] = (void *) (unsigned long) IB_CM_REQ_SENT;
cm_id_priv->local_qpn = cm_req_get_local_qpn(req_msg);
cm_id_priv->rq_psn = cm_req_get_starting_psn(req_msg);
spin_lock_irqsave(&cm_id_priv->lock, flags);
ret = ib_post_send_mad(cm_id_priv->msg, NULL);
if (ret) {
spin_unlock_irqrestore(&cm_id_priv->lock, flags);
goto error2;
}
BUG_ON(cm_id->state != IB_CM_IDLE);
cm_id->state = IB_CM_REQ_SENT;
spin_unlock_irqrestore(&cm_id_priv->lock, flags);
return 0;
error2: cm_free_msg(cm_id_priv->msg);
error1: kfree(cm_id_priv->timewait_info);
out: return ret;
}
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| Total | 482 | 100.00% | 7 | 100.00% |
EXPORT_SYMBOL(ib_send_cm_req);
static int cm_issue_rej(struct cm_port *port,
struct ib_mad_recv_wc *mad_recv_wc,
enum ib_cm_rej_reason reason,
enum cm_msg_response msg_rejected,
void *ari, u8 ari_length)
{
struct ib_mad_send_buf *msg = NULL;
struct cm_rej_msg *rej_msg, *rcv_msg;
int ret;
ret = cm_alloc_response_msg(port, mad_recv_wc, &msg);
if (ret)
return ret;
/* We just need common CM header information. Cast to any message. */
rcv_msg = (struct cm_rej_msg *) mad_recv_wc->recv_buf.mad;
rej_msg = (struct cm_rej_msg *) msg->mad;
cm_format_mad_hdr(&rej_msg->hdr, CM_REJ_ATTR_ID, rcv_msg->hdr.tid);
rej_msg->remote_comm_id = rcv_msg->local_comm_id;
rej_msg->local_comm_id = rcv_msg->remote_comm_id;
cm_rej_set_msg_rejected(rej_msg, msg_rejected);
rej_msg->reason = cpu_to_be16(reason);
if (ari && ari_length) {
cm_rej_set_reject_info_len(rej_msg, ari_length);
memcpy(rej_msg->ari, ari, ari_length);
}
ret = ib_post_send_mad(msg, NULL);
if (ret)
cm_free_msg(msg);
return ret;
}
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| hal rosenstock | hal rosenstock | 184 | 97.87% | 1 | 33.33% |
| sean hefty | sean hefty | 4 | 2.13% | 2 | 66.67% |
| Total | 188 | 100.00% | 3 | 100.00% |
static inline int cm_is_active_peer(__be64 local_ca_guid, __be64 remote_ca_guid,
__be32 local_qpn, __be32 remote_qpn)
{
return (be64_to_cpu(local_ca_guid) > be64_to_cpu(remote_ca_guid) ||
((local_ca_guid == remote_ca_guid) &&
(be32_to_cpu(local_qpn) > be32_to_cpu(remote_qpn))));
}
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| hal rosenstock | hal rosenstock | 48 | 92.31% | 1 | 50.00% |
| sean hefty | sean hefty | 4 | 7.69% | 1 | 50.00% |
| Total | 52 | 100.00% | 2 | 100.00% |
static void cm_format_paths_from_req(struct cm_req_msg *req_msg,
struct ib_sa_path_rec *primary_path,
struct ib_sa_path_rec *alt_path)
{
memset(primary_path, 0, sizeof *primary_path);
primary_path->dgid = req_msg->primary_local_gid;
primary_path->sgid = req_msg->primary_remote_gid;
primary_path->dlid = req_msg->primary_local_lid;
primary_path->slid = req_msg->primary_remote_lid;
primary_path->flow_label = cm_req_get_primary_flow_label(req_msg);
primary_path->hop_limit = req_msg->primary_hop_limit;
primary_path->traffic_class = req_msg->primary_traffic_class;
primary_path->reversible = 1;
primary_path->pkey = req_msg->pkey;
primary_path->sl = cm_req_get_primary_sl(req_msg);
primary_path->mtu_selector = IB_SA_EQ;
primary_path->mtu = cm_req_get_path_mtu(req_msg);
primary_path->rate_selector = IB_SA_EQ;
primary_path->rate = cm_req_get_primary_packet_rate(req_msg);
primary_path->packet_life_time_selector = IB_SA_EQ;
primary_path->packet_life_time =
cm_req_get_primary_local_ack_timeout(req_msg);
primary_path->packet_life_time -= (primary_path->packet_life_time > 0);
primary_path->service_id = req_msg->service_id;
if (req_msg->alt_local_lid) {
memset(alt_path, 0, sizeof *alt_path);
alt_path->dgid = req_msg->alt_local_gid;
alt_path->sgid = req_msg->alt_remote_gid;
alt_path->dlid = req_msg->alt_local_lid;
alt_path->slid = req_msg->alt_remote_lid;
alt_path->flow_label = cm_req_get_alt_flow_label(req_msg);
alt_path->hop_limit = req_msg->alt_hop_limit;
alt_path->traffic_class = req_msg->alt_traffic_class;
alt_path->reversible = 1;
alt_path->pkey = req_msg->pkey;
alt_path->sl = cm_req_get_alt_sl(req_msg);
alt_path->mtu_selector = IB_SA_EQ;
alt_path->mtu = cm_req_get_path_mtu(req_msg);
alt_path->rate_selector = IB_SA_EQ;
alt_path->rate = cm_req_get_alt_packet_rate(req_msg);
alt_path->packet_life_time_selector = IB_SA_EQ;
alt_path->packet_life_time =
cm_req_get_alt_local_ack_timeout(req_msg);
alt_path->packet_life_time -= (alt_path->packet_life_time > 0);
alt_path->service_id = req_msg->service_id;
}
}
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| Total | 341 | 100.00% | 2 | 100.00% |
static u16 cm_get_bth_pkey(struct cm_work *work)
{
struct ib_device *ib_dev = work->port->cm_dev->ib_device;
u8 port_num = work->port->port_num;
u16 pkey_index = work->mad_recv_wc->wc->pkey_index;
u16 pkey;
int ret;
ret = ib_get_cached_pkey(ib_dev, port_num, pkey_index, &pkey);
if (ret) {
dev_warn_ratelimited(&ib_dev->dev, "ib_cm: Couldn't retrieve pkey for incoming request (port %d, pkey index %d). %d\n",
port_num, pkey_index, ret);
return 0;
}
return pkey;
}
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| Total | 92 | 100.00% | 1 | 100.00% |
static void cm_format_req_event(struct cm_work *work,
struct cm_id_private *cm_id_priv,
struct ib_cm_id *listen_id)
{
struct cm_req_msg *req_msg;
struct ib_cm_req_event_param *param;
req_msg = (struct cm_req_msg *)work->mad_recv_wc->recv_buf.mad;
param = &work->cm_event.param.req_rcvd;
param->listen_id = listen_id;
param->bth_pkey = cm_get_bth_pkey(work);
param->port = cm_id_priv->av.port->port_num;
param->primary_path = &work->path[0];
if (req_msg->alt_local_lid)
param->alternate_path = &work->path[1];
else
param->alternate_path = NULL;
param->remote_ca_guid = req_msg->local_ca_guid;
param->remote_qkey = be32_to_cpu(req_msg->local_qkey);
param->remote_qpn = be32_to_cpu(cm_req_get_local_qpn(req_msg));
param->qp_type = cm_req_get_qp_type(req_msg);
param->starting_psn = be32_to_cpu(cm_req_get_starting_psn(req_msg));
param->responder_resources = cm_req_get_init_depth(req_msg);
param->initiator_depth = cm_req_get_resp_res(req_msg);
param->local_cm_response_timeout =
cm_req_get_remote_resp_timeout(req_msg);
param->flow_control = cm_req_get_flow_ctrl(req_msg);
param->remote_cm_response_timeout =
cm_req_get_local_resp_timeout(req_msg);
param->retry_count = cm_req_get_retry_count(req_msg);
param->rnr_retry_count = cm_req_get_rnr_retry_count(req_msg);
param->srq = cm_req_get_srq(req_msg);
work->cm_event.private_data = &req_msg->private_data;
}
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| Total | 256 | 100.00% | 2 | 100.00% |
static void cm_process_work(struct cm_id_private *cm_id_priv,
struct cm_work *work)
{
int ret;
/* We will typically only have the current event to report. */
ret = cm_id_priv->id.cm_handler(&cm_id_priv->id, &work->cm_event);
cm_free_work(work);
while (!ret && !atomic_add_negative(-1, &cm_id_priv->work_count)) {
spin_lock_irq(&cm_id_priv->lock);
work = cm_dequeue_work(cm_id_priv);
spin_unlock_irq(&cm_id_priv->lock);
BUG_ON(!work);
ret = cm_id_priv->id.cm_handler(&cm_id_priv->id,
&work->cm_event);
cm_free_work(work);
}
cm_deref_id(cm_id_priv);
if (ret)
cm_destroy_id(&cm_id_priv->id, ret);
}
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| sean hefty | sean hefty | 2 | 1.48% | 1 | 33.33% |
| Total | 135 | 100.00% | 3 | 100.00% |
static void cm_format_mra(struct cm_mra_msg *mra_msg,
struct cm_id_private *cm_id_priv,
enum cm_msg_response msg_mraed, u8 service_timeout,
const void *private_data, u8 private_data_len)
{
cm_format_mad_hdr(&mra_msg->hdr, CM_MRA_ATTR_ID, cm_id_priv->tid);
cm_mra_set_msg_mraed(mra_msg, msg_mraed);
mra_msg->local_comm_id = cm_id_priv->id.local_id;
mra_msg->remote_comm_id = cm_id_priv->id.remote_id;
cm_mra_set_service_timeout(mra_msg, service_timeout);
if (private_data && private_data_len)
memcpy(mra_msg->private_data, private_data, private_data_len);
}
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| Total | 96 | 100.00% | 1 | 100.00% |
static void cm_format_rej(struct cm_rej_msg *rej_msg,
struct cm_id_private *cm_id_priv,
enum ib_cm_rej_reason reason,
void *ari,
u8 ari_length,
const void *private_data,
u8 private_data_len)
{
cm_format_mad_hdr(&rej_msg->hdr, CM_REJ_ATTR_ID, cm_id_priv->tid);
rej_msg->remote_comm_id = cm_id_priv->id.remote_id;
switch(cm_id_priv->id.state) {
case IB_CM_REQ_RCVD:
rej_msg->local_comm_id = 0;
cm_rej_set_msg_rejected(rej_msg, CM_MSG_RESPONSE_REQ);
break;
case IB_CM_MRA_REQ_SENT:
rej_msg->local_comm_id = cm_id_priv->id.local_id;
cm_rej_set_msg_rejected(rej_msg, CM_MSG_RESPONSE_REQ);
break;
case IB_CM_REP_RCVD:
case IB_CM_MRA_REP_SENT:
rej_msg->local_comm_id = cm_id_priv->id.local_id;
cm_rej_set_msg_rejected(rej_msg, CM_MSG_RESPONSE_REP);
break;
default:
rej_msg->local_comm_id = cm_id_priv->id.local_id;
cm_rej_set_msg_rejected(rej_msg, CM_MSG_RESPONSE_OTHER);
break;
}
rej_msg->reason = cpu_to_be16(reason);
if (ari && ari_length) {
cm_rej_set_reject_info_len(rej_msg, ari_length);
memcpy(rej_msg->ari, ari, ari_length);
}
if (private_data && private_data_len)
memcpy(rej_msg->private_data, private_data, private_data_len);
}
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| Total | 202 | 100.00% | 2 | 100.00% |
static void cm_dup_req_handler(struct cm_work *work,
struct cm_id_private *cm_id_priv)
{
struct ib_mad_send_buf *msg = NULL;
int ret;
atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
counter[CM_REQ_COUNTER]);
/* Quick state check to discard duplicate REQs. */
if (cm_id_priv->id.state == IB_CM_REQ_RCVD)
return;
ret = cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg);
if (ret)
return;
spin_lock_irq(&cm_id_priv->lock);
switch (cm_id_priv->id.state) {
case IB_CM_MRA_REQ_SENT:
cm_format_mra((struct cm_mra_msg *) msg->mad, cm_id_priv,
CM_MSG_RESPONSE_REQ, cm_id_priv->service_timeout,
cm_id_priv->private_data,
cm_id_priv->private_data_len);
break;
case IB_CM_TIMEWAIT:
cm_format_rej((struct cm_rej_msg *) msg->mad, cm_id_priv,
IB_CM_REJ_STALE_CONN, NULL, 0, NULL, 0);
break;
default:
goto unlock;
}
spin_unlock_irq(&cm_id_priv->lock);
ret = ib_post_send_mad(msg, NULL);
if (ret)
goto free;
return;
unlock: spin_unlock_irq(&cm_id_priv->lock);
free: cm_free_msg(msg);
}
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| hal rosenstock | hal rosenstock | 179 | 89.05% | 1 | 25.00% |
| sean hefty | sean hefty | 22 | 10.95% | 3 | 75.00% |
| Total | 201 | 100.00% | 4 | 100.00% |
static struct cm_id_private * cm_match_req(struct cm_work *work,
struct cm_id_private *cm_id_priv)
{
struct cm_id_private *listen_cm_id_priv, *cur_cm_id_priv;
struct cm_timewait_info *timewait_info;
struct cm_req_msg *req_msg;
req_msg = (struct cm_req_msg *)work->mad_recv_wc->recv_buf.mad;
/* Check for possible duplicate REQ. */
spin_lock_irq(&cm.lock);
timewait_info = cm_insert_remote_id(cm_id_priv->timewait_info);
if (timewait_info) {
cur_cm_id_priv = cm_get_id(timewait_info->work.local_id,
timewait_info->work.remote_id);
spin_unlock_irq(&cm.lock);
if (cur_cm_id_priv) {
cm_dup_req_handler(work, cur_cm_id_priv);
cm_deref_id(cur_cm_id_priv);
}
return NULL;
}
/* Check for stale connections. */
timewait_info = cm_insert_remote_qpn(cm_id_priv->timewait_info);
if (timewait_info) {
cm_cleanup_timewait(cm_id_priv->timewait_info);
spin_unlock_irq(&cm.lock);
cm_issue_rej(work->port, work->mad_recv_wc,
IB_CM_REJ_STALE_CONN, CM_MSG_RESPONSE_REQ,
NULL, 0);
return NULL;
}
/* Find matching listen request. */
listen_cm_id_priv = cm_find_listen(cm_id_priv->id.device,
req_msg->service_id);
if (!listen_cm_id_priv) {
cm_cleanup_timewait(cm_id_priv->timewait_info);
spin_unlock_irq(&cm.lock);
cm_issue_rej(work->port, work->mad_recv_wc,
IB_CM_REJ_INVALID_SERVICE_ID, CM_MSG_RESPONSE_REQ,
NULL, 0);
goto out;
}
atomic_inc(&listen_cm_id_priv->refcount);
atomic_inc(&cm_id_priv->refcount);
cm_id_priv->id.state = IB_CM_REQ_RCVD;
atomic_inc(&cm_id_priv->work_count);
spin_unlock_irq(&cm.lock);
out:
return listen_cm_id_priv;
}
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| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 221 | 79.21% | 1 | 20.00% |
| sean hefty | sean hefty | 58 | 20.79% | 4 | 80.00% |
| Total | 279 | 100.00% | 5 | 100.00% |
/*
* Work-around for inter-subnet connections. If the LIDs are permissive,
* we need to override the LID/SL data in the REQ with the LID information
* in the work completion.
*/
static void cm_process_routed_req(struct cm_req_msg *req_msg, struct ib_wc *wc)
{
if (!cm_req_get_primary_subnet_local(req_msg)) {
if (req_msg->primary_local_lid == IB_LID_PERMISSIVE) {
req_msg->primary_local_lid = cpu_to_be16(wc->slid);
cm_req_set_primary_sl(req_msg, wc->sl);
}
if (req_msg->primary_remote_lid == IB_LID_PERMISSIVE)
req_msg->primary_remote_lid = cpu_to_be16(wc->dlid_path_bits);
}
if (!cm_req_get_alt_subnet_local(req_msg)) {
if (req_msg->alt_local_lid == IB_LID_PERMISSIVE) {
req_msg->alt_local_lid = cpu_to_be16(wc->slid);
cm_req_set_alt_sl(req_msg, wc->sl);
}
if (req_msg->alt_remote_lid == IB_LID_PERMISSIVE)
req_msg->alt_remote_lid = cpu_to_be16(wc->dlid_path_bits);
}
}
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| Total | 134 | 100.00% | 1 | 100.00% |
static int cm_req_handler(struct cm_work *work)
{
struct ib_cm_id *cm_id;
struct cm_id_private *cm_id_priv, *listen_cm_id_priv;
struct cm_req_msg *req_msg;
union ib_gid gid;
struct ib_gid_attr gid_attr;
int ret;
req_msg = (struct cm_req_msg *)work->mad_recv_wc->recv_buf.mad;
cm_id = ib_create_cm_id(work->port->cm_dev->ib_device, NULL, NULL);
if (IS_ERR(cm_id))
return PTR_ERR(cm_id);
cm_id_priv = container_of(cm_id, struct cm_id_private, id);
cm_id_priv->id.remote_id = req_msg->local_comm_id;
cm_init_av_for_response(work->port, work->mad_recv_wc->wc,
work->mad_recv_wc->recv_buf.grh,
&cm_id_priv->av);
cm_id_priv->timewait_info = cm_create_timewait_info(cm_id_priv->
id.local_id);
if (IS_ERR(cm_id_priv->timewait_info)) {
ret = PTR_ERR(cm_id_priv->timewait_info);
goto destroy;
}
cm_id_priv->timewait_info->work.remote_id = req_msg->local_comm_id;
cm_id_priv->timewait_info->remote_ca_guid = req_msg->local_ca_guid;
cm_id_priv->timewait_info->remote_qpn = cm_req_get_local_qpn(req_msg);
listen_cm_id_priv = cm_match_req(work, cm_id_priv);
if (!listen_cm_id_priv) {
ret = -EINVAL;
kfree(cm_id_priv->timewait_info);
goto destroy;
}
cm_id_priv->id.cm_handler = listen_cm_id_priv->id.cm_handler;
cm_id_priv->id.context = listen_cm_id_priv->id.context;
cm_id_priv->id.service_id = req_msg->service_id;
cm_id_priv->id.service_mask = ~cpu_to_be64(0);
cm_process_routed_req(req_msg, work->mad_recv_wc->wc);
cm_format_paths_from_req(req_msg, &work->path[0], &work->path[1]);
memcpy(work->path[0].dmac, cm_id_priv->av.ah_attr.dmac, ETH_ALEN);
work->path[0].hop_limit = cm_id_priv->av.ah_attr.grh.hop_limit;
ret = ib_get_cached_gid(work->port->cm_dev->ib_device,
work->port->port_num,
cm_id_priv->av.ah_attr.grh.sgid_index,
&gid, &gid_attr);
if (!ret) {
if (gid_attr.ndev) {
work->path[0].ifindex = gid_attr.ndev->ifindex;
work->path[0].net = dev_net(gid_attr.ndev);
dev_put(gid_attr.ndev);
}
work->path[0].gid_type = gid_attr.gid_type;
ret = cm_init_av_by_path(&work->path[0], &cm_id_priv->av);
}
if (ret) {
int err = ib_get_cached_gid(work->port->cm_dev->ib_device,
work->port->port_num, 0,
&work->path[0].sgid,
&gid_attr);
if (!err && gid_attr.ndev) {
work->path[0].ifindex = gid_attr.ndev->ifindex;
work->path[0].net = dev_net(gid_attr.ndev);
dev_put(gid_attr.ndev);
}
work->path[0].gid_type = gid_attr.gid_type;
ib_send_cm_rej(cm_id, IB_CM_REJ_INVALID_GID,
&work->path[0].sgid, sizeof work->path[0].sgid,
NULL, 0);
goto rejected;
}
if (req_msg->alt_local_lid) {
ret = cm_init_av_by_path(&work->path[1], &cm_id_priv->alt_av);
if (ret) {
ib_send_cm_rej(cm_id, IB_CM_REJ_INVALID_ALT_GID,
&work->path[0].sgid,
sizeof work->path[0].sgid, NULL, 0);
goto rejected;
}
}
cm_id_priv->tid = req_msg->hdr.tid;
cm_id_priv->timeout_ms = cm_convert_to_ms(
cm_req_get_local_resp_timeout(req_msg));
cm_id_priv->max_cm_retries = cm_req_get_max_cm_retries(req_msg);
cm_id_priv->remote_qpn = cm_req_get_local_qpn(req_msg);
cm_id_priv->initiator_depth = cm_req_get_resp_res(req_msg);
cm_id_priv->responder_resources = cm_req_get_init_depth(req_msg);
cm_id_priv->path_mtu = cm_req_get_path_mtu(req_msg);
cm_id_priv->pkey = req_msg->pkey;
cm_id_priv->sq_psn = cm_req_get_starting_psn(req_msg);
cm_id_priv->retry_count = cm_req_get_retry_count(req_msg);
cm_id_priv->rnr_retry_count = cm_req_get_rnr_retry_count(req_msg);
cm_id_priv->qp_type = cm_req_get_qp_type(req_msg);
cm_format_req_event(work, cm_id_priv, &listen_cm_id_priv->id);
cm_process_work(cm_id_priv, work);
cm_deref_id(listen_cm_id_priv);
return 0;
rejected:
atomic_dec(&cm_id_priv->refcount);
cm_deref_id(listen_cm_id_priv);
destroy:
ib_destroy_cm_id(cm_id);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 465 | 55.56% | 1 | 6.67% |
| matan barak | matan barak | 218 | 26.05% | 5 | 33.33% |
| sean hefty | sean hefty | 149 | 17.80% | 7 | 46.67% |
| harvey harrison | harvey harrison | 3 | 0.36% | 1 | 6.67% |
| greg kroah-hartman | greg kroah-hartman | 2 | 0.24% | 1 | 6.67% |
| Total | 837 | 100.00% | 15 | 100.00% |
static void cm_format_rep(struct cm_rep_msg *rep_msg,
struct cm_id_private *cm_id_priv,
struct ib_cm_rep_param *param)
{
cm_format_mad_hdr(&rep_msg->hdr, CM_REP_ATTR_ID, cm_id_priv->tid);
rep_msg->local_comm_id = cm_id_priv->id.local_id;
rep_msg->remote_comm_id = cm_id_priv->id.remote_id;
cm_rep_set_starting_psn(rep_msg, cpu_to_be32(param->starting_psn));
rep_msg->resp_resources = param->responder_resources;
cm_rep_set_target_ack_delay(rep_msg,
cm_id_priv->av.port->cm_dev->ack_delay);
cm_rep_set_failover(rep_msg, param->failover_accepted);
cm_rep_set_rnr_retry_count(rep_msg, param->rnr_retry_count);
rep_msg->local_ca_guid = cm_id_priv->id.device->node_guid;
if (cm_id_priv->qp_type != IB_QPT_XRC_TGT) {
rep_msg->initiator_depth = param->initiator_depth;
cm_rep_set_flow_ctrl(rep_msg, param->flow_control);
cm_rep_set_srq(rep_msg, param->srq);
cm_rep_set_local_qpn(rep_msg, cpu_to_be32(param->qp_num));
} else {
cm_rep_set_srq(rep_msg, 1);
cm_rep_set_local_eecn(rep_msg, cpu_to_be32(param->qp_num));
}
if (param->private_data && param->private_data_len)
memcpy(rep_msg->private_data, param->private_data,
param->private_data_len);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 141 | 65.58% | 1 | 25.00% |
| sean hefty | sean hefty | 74 | 34.42% | 3 | 75.00% |
| Total | 215 | 100.00% | 4 | 100.00% |
int ib_send_cm_rep(struct ib_cm_id *cm_id,
struct ib_cm_rep_param *param)
{
struct cm_id_private *cm_id_priv;
struct ib_mad_send_buf *msg;
struct cm_rep_msg *rep_msg;
unsigned long flags;
int ret;
if (param->private_data &&
param->private_data_len > IB_CM_REP_PRIVATE_DATA_SIZE)
return -EINVAL;
cm_id_priv = container_of(cm_id, struct cm_id_private, id);
spin_lock_irqsave(&cm_id_priv->lock, flags);
if (cm_id->state != IB_CM_REQ_RCVD &&
cm_id->state != IB_CM_MRA_REQ_SENT) {
ret = -EINVAL;
goto out;
}
ret = cm_alloc_msg(cm_id_priv, &msg);
if (ret)
goto out;
rep_msg = (struct cm_rep_msg *) msg->mad;
cm_format_rep(rep_msg, cm_id_priv, param);
msg->timeout_ms = cm_id_priv->timeout_ms;
msg->context[1] = (void *) (unsigned long) IB_CM_REP_SENT;
ret = ib_post_send_mad(msg, NULL);
if (ret) {
spin_unlock_irqrestore(&cm_id_priv->lock, flags);
cm_free_msg(msg);
return ret;
}
cm_id->state = IB_CM_REP_SENT;
cm_id_priv->msg = msg;
cm_id_priv->initiator_depth = param->initiator_depth;
cm_id_priv->responder_resources = param->responder_resources;
cm_id_priv->rq_psn = cm_rep_get_starting_psn(rep_msg);
cm_id_priv->local_qpn = cpu_to_be32(param->qp_num & 0xFFFFFF);
out: spin_unlock_irqrestore(&cm_id_priv->lock, flags);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 252 | 97.30% | 1 | 33.33% |
| sean hefty | sean hefty | 7 | 2.70% | 2 | 66.67% |
| Total | 259 | 100.00% | 3 | 100.00% |
EXPORT_SYMBOL(ib_send_cm_rep);
static void cm_format_rtu(struct cm_rtu_msg *rtu_msg,
struct cm_id_private *cm_id_priv,
const void *private_data,
u8 private_data_len)
{
cm_format_mad_hdr(&rtu_msg->hdr, CM_RTU_ATTR_ID, cm_id_priv->tid);
rtu_msg->local_comm_id = cm_id_priv->id.local_id;
rtu_msg->remote_comm_id = cm_id_priv->id.remote_id;
if (private_data && private_data_len)
memcpy(rtu_msg->private_data, private_data, private_data_len);
}
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| hal rosenstock | hal rosenstock | 75 | 100.00% | 1 | 100.00% |
| Total | 75 | 100.00% | 1 | 100.00% |
int ib_send_cm_rtu(struct ib_cm_id *cm_id,
const void *private_data,
u8 private_data_len)
{
struct cm_id_private *cm_id_priv;
struct ib_mad_send_buf *msg;
unsigned long flags;
void *data;
int ret;
if (private_data && private_data_len > IB_CM_RTU_PRIVATE_DATA_SIZE)
return -EINVAL;
data = cm_copy_private_data(private_data, private_data_len);
if (IS_ERR(data))
return PTR_ERR(data);
cm_id_priv = container_of(cm_id, struct cm_id_private, id);
spin_lock_irqsave(&cm_id_priv->lock, flags);
if (cm_id->state != IB_CM_REP_RCVD &&
cm_id->state != IB_CM_MRA_REP_SENT) {
ret = -EINVAL;
goto error;
}
ret = cm_alloc_msg(cm_id_priv, &msg);
if (ret)
goto error;
cm_format_rtu((struct cm_rtu_msg *) msg->mad, cm_id_priv,
private_data, private_data_len);
ret = ib_post_send_mad(msg, NULL);
if (ret) {
spin_unlock_irqrestore(&cm_id_priv->lock, flags);
cm_free_msg(msg);
kfree(data);
return ret;
}
cm_id->state = IB_CM_ESTABLISHED;
cm_set_private_data(cm_id_priv, data, private_data_len);
spin_unlock_irqrestore(&cm_id_priv->lock, flags);
return 0;
error: spin_unlock_irqrestore(&cm_id_priv->lock, flags);
kfree(data);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 239 | 99.58% | 1 | 50.00% |
| sean hefty | sean hefty | 1 | 0.42% | 1 | 50.00% |
| Total | 240 | 100.00% | 2 | 100.00% |
EXPORT_SYMBOL(ib_send_cm_rtu);
static void cm_format_rep_event(struct cm_work *work, enum ib_qp_type qp_type)
{
struct cm_rep_msg *rep_msg;
struct ib_cm_rep_event_param *param;
rep_msg = (struct cm_rep_msg *)work->mad_recv_wc->recv_buf.mad;
param = &work->cm_event.param.rep_rcvd;
param->remote_ca_guid = rep_msg->local_ca_guid;
param->remote_qkey = be32_to_cpu(rep_msg->local_qkey);
param->remote_qpn = be32_to_cpu(cm_rep_get_qpn(rep_msg, qp_type));
param->starting_psn = be32_to_cpu(cm_rep_get_starting_psn(rep_msg));
param->responder_resources = rep_msg->initiator_depth;
param->initiator_depth = rep_msg->resp_resources;
param->target_ack_delay = cm_rep_get_target_ack_delay(rep_msg);
param->failover_accepted = cm_rep_get_failover(rep_msg);
param->flow_control = cm_rep_get_flow_ctrl(rep_msg);
param->rnr_retry_count = cm_rep_get_rnr_retry_count(rep_msg);
param->srq = cm_rep_get_srq(rep_msg);
work->cm_event.private_data = &rep_msg->private_data;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 161 | 95.83% | 1 | 50.00% |
| sean hefty | sean hefty | 7 | 4.17% | 1 | 50.00% |
| Total | 168 | 100.00% | 2 | 100.00% |
static void cm_dup_rep_handler(struct cm_work *work)
{
struct cm_id_private *cm_id_priv;
struct cm_rep_msg *rep_msg;
struct ib_mad_send_buf *msg = NULL;
int ret;
rep_msg = (struct cm_rep_msg *) work->mad_recv_wc->recv_buf.mad;
cm_id_priv = cm_acquire_id(rep_msg->remote_comm_id,
rep_msg->local_comm_id);
if (!cm_id_priv)
return;
atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
counter[CM_REP_COUNTER]);
ret = cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg);
if (ret)
goto deref;
spin_lock_irq(&cm_id_priv->lock);
if (cm_id_priv->id.state == IB_CM_ESTABLISHED)
cm_format_rtu((struct cm_rtu_msg *) msg->mad, cm_id_priv,
cm_id_priv->private_data,
cm_id_priv->private_data_len);
else if (cm_id_priv->id.state == IB_CM_MRA_REP_SENT)
cm_format_mra((struct cm_mra_msg *) msg->mad, cm_id_priv,
CM_MSG_RESPONSE_REP, cm_id_priv->service_timeout,
cm_id_priv->private_data,
cm_id_priv->private_data_len);
else
goto unlock;
spin_unlock_irq(&cm_id_priv->lock);
ret = ib_post_send_mad(msg, NULL);
if (ret)
goto free;
goto deref;
unlock: spin_unlock_irq(&cm_id_priv->lock);
free: cm_free_msg(msg);
deref: cm_deref_id(cm_id_priv);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 218 | 90.83% | 1 | 25.00% |
| sean hefty | sean hefty | 22 | 9.17% | 3 | 75.00% |
| Total | 240 | 100.00% | 4 | 100.00% |
static int cm_rep_handler(struct cm_work *work)
{
struct cm_id_private *cm_id_priv;
struct cm_rep_msg *rep_msg;
int ret;
rep_msg = (struct cm_rep_msg *)work->mad_recv_wc->recv_buf.mad;
cm_id_priv = cm_acquire_id(rep_msg->remote_comm_id, 0);
if (!cm_id_priv) {
cm_dup_rep_handler(work);
return -EINVAL;
}
cm_format_rep_event(work, cm_id_priv->qp_type);
spin_lock_irq(&cm_id_priv->lock);
switch (cm_id_priv->id.state) {
case IB_CM_REQ_SENT:
case IB_CM_MRA_REQ_RCVD:
break;
default:
spin_unlock_irq(&cm_id_priv->lock);
ret = -EINVAL;
goto error;
}
cm_id_priv->timewait_info->work.remote_id = rep_msg->local_comm_id;
cm_id_priv->timewait_info->remote_ca_guid = rep_msg->local_ca_guid;
cm_id_priv->timewait_info->remote_qpn = cm_rep_get_qpn(rep_msg, cm_id_priv->qp_type);
spin_lock(&cm.lock);
/* Check for duplicate REP. */
if (cm_insert_remote_id(cm_id_priv->timewait_info)) {
spin_unlock(&cm.lock);
spin_unlock_irq(&cm_id_priv->lock);
ret = -EINVAL;
goto error;
}
/* Check for a stale connection. */
if (cm_insert_remote_qpn(cm_id_priv->timewait_info)) {
rb_erase(&cm_id_priv->timewait_info->remote_id_node,
&cm.remote_id_table);
cm_id_priv->timewait_info->inserted_remote_id = 0;
spin_unlock(&cm.lock);
spin_unlock_irq(&cm_id_priv->lock);
cm_issue_rej(work->port, work->mad_recv_wc,
IB_CM_REJ_STALE_CONN, CM_MSG_RESPONSE_REP,
NULL, 0);
ret = -EINVAL;
goto error;
}
spin_unlock(&cm.lock);
cm_id_priv->id.state = IB_CM_REP_RCVD;
cm_id_priv->id.remote_id = rep_msg->local_comm_id;
cm_id_priv->remote_qpn = cm_rep_get_qpn(rep_msg, cm_id_priv->qp_type);
cm_id_priv->initiator_depth = rep_msg->resp_resources;
cm_id_priv->responder_resources = rep_msg->initiator_depth;
cm_id_priv->sq_psn = cm_rep_get_starting_psn(rep_msg);
cm_id_priv->rnr_retry_count = cm_rep_get_rnr_retry_count(rep_msg);
cm_id_priv->target_ack_delay = cm_rep_get_target_ack_delay(rep_msg);
cm_id_priv->av.timeout =
cm_ack_timeout(cm_id_priv->target_ack_delay,
cm_id_priv->av.timeout - 1);
cm_id_priv->alt_av.timeout =
cm_ack_timeout(cm_id_priv->target_ack_delay,
cm_id_priv->alt_av.timeout - 1);
/* todo: handle peer_to_peer */
ib_cancel_mad(cm_id_priv->av.port->mad_agent, cm_id_priv->msg);
ret = atomic_inc_and_test(&cm_id_priv->work_count);
if (!ret)
list_add_tail(&work->list, &cm_id_priv->work_list);
spin_unlock_irq(&cm_id_priv->lock);
if (ret)
cm_process_work(cm_id_priv, work);
else
cm_deref_id(cm_id_priv);
return 0;
error:
cm_deref_id(cm_id_priv);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 326 | 67.63% | 1 | 20.00% |
| sean hefty | sean hefty | 156 | 32.37% | 4 | 80.00% |
| Total | 482 | 100.00% | 5 | 100.00% |
static int cm_establish_handler(struct cm_work *work)
{
struct cm_id_private *cm_id_priv;
int ret;
/* See comment in cm_establish about lookup. */
cm_id_priv = cm_acquire_id(work->local_id, work->remote_id);
if (!cm_id_priv)
return -EINVAL;
spin_lock_irq(&cm_id_priv->lock);
if (cm_id_priv->id.state != IB_CM_ESTABLISHED) {
spin_unlock_irq(&cm_id_priv->lock);
goto out;
}
ib_cancel_mad(cm_id_priv->av.port->mad_agent, cm_id_priv->msg);
ret = atomic_inc_and_test(&cm_id_priv->work_count);
if (!ret)
list_add_tail(&work->list, &cm_id_priv->work_list);
spin_unlock_irq(&cm_id_priv->lock);
if (ret)
cm_process_work(cm_id_priv, work);
else
cm_deref_id(cm_id_priv);
return 0;
out:
cm_deref_id(cm_id_priv);
return -EINVAL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 151 | 97.42% | 1 | 33.33% |
| sean hefty | sean hefty | 4 | 2.58% | 2 | 66.67% |
| Total | 155 | 100.00% | 3 | 100.00% |
static int cm_rtu_handler(struct cm_work *work)
{
struct cm_id_private *cm_id_priv;
struct cm_rtu_msg *rtu_msg;
int ret;
rtu_msg = (struct cm_rtu_msg *)work->mad_recv_wc->recv_buf.mad;
cm_id_priv = cm_acquire_id(rtu_msg->remote_comm_id,
rtu_msg->local_comm_id);
if (!cm_id_priv)
return -EINVAL;
work->cm_event.private_data = &rtu_msg->private_data;
spin_lock_irq(&cm_id_priv->lock);
if (cm_id_priv->id.state != IB_CM_REP_SENT &&
cm_id_priv->id.state != IB_CM_MRA_REP_RCVD) {
spin_unlock_irq(&cm_id_priv->lock);
atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
counter[CM_RTU_COUNTER]);
goto out;
}
cm_id_priv->id.state = IB_CM_ESTABLISHED;
ib_cancel_mad(cm_id_priv->av.port->mad_agent, cm_id_priv->msg);
ret = atomic_inc_and_test(&cm_id_priv->work_count);
if (!ret)
list_add_tail(&work->list, &cm_id_priv->work_list);
spin_unlock_irq(&cm_id_priv->lock);
if (ret)
cm_process_work(cm_id_priv, work);
else
cm_deref_id(cm_id_priv);
return 0;
out:
cm_deref_id(cm_id_priv);
return -EINVAL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 198 | 90.41% | 1 | 33.33% |
| sean hefty | sean hefty | 21 | 9.59% | 2 | 66.67% |
| Total | 219 | 100.00% | 3 | 100.00% |
static void cm_format_dreq(struct cm_dreq_msg *dreq_msg,
struct cm_id_private *cm_id_priv,
const void *private_data,
u8 private_data_len)
{
cm_format_mad_hdr(&dreq_msg->hdr, CM_DREQ_ATTR_ID,
cm_form_tid(cm_id_priv, CM_MSG_SEQUENCE_DREQ));
dreq_msg->local_comm_id = cm_id_priv->id.local_id;
dreq_msg->remote_comm_id = cm_id_priv->id.remote_id;
cm_dreq_set_remote_qpn(dreq_msg, cm_id_priv->remote_qpn);
if (private_data && private_data_len)
memcpy(dreq_msg->private_data, private_data, private_data_len);
}
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| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 87 | 100.00% | 1 | 100.00% |
| Total | 87 | 100.00% | 1 | 100.00% |
int ib_send_cm_dreq(struct ib_cm_id *cm_id,
const void *private_data,
u8 private_data_len)
{
struct cm_id_private *cm_id_priv;
struct ib_mad_send_buf *msg;
unsigned long flags;
int ret;
if (private_data && private_data_len > IB_CM_DREQ_PRIVATE_DATA_SIZE)
return -EINVAL;
cm_id_priv = container_of(cm_id, struct cm_id_private, id);
spin_lock_irqsave(&cm_id_priv->lock, flags);
if (cm_id->state != IB_CM_ESTABLISHED) {
ret = -EINVAL;
goto out;
}
if (cm_id->lap_state == IB_CM_LAP_SENT ||
cm_id->lap_state == IB_CM_MRA_LAP_RCVD)
ib_cancel_mad(cm_id_priv->av.port->mad_agent, cm_id_priv->msg);
ret = cm_alloc_msg(cm_id_priv, &msg);
if (ret) {
cm_enter_timewait(cm_id_priv);
goto out;
}
cm_format_dreq((struct cm_dreq_msg *) msg->mad, cm_id_priv,
private_data, private_data_len);
msg->timeout_ms = cm_id_priv->timeout_ms;
msg->context[1] = (void *) (unsigned long) IB_CM_DREQ_SENT;
ret = ib_post_send_mad(msg, NULL);
if (ret) {
cm_enter_timewait(cm_id_priv);
spin_unlock_irqrestore(&cm_id_priv->lock, flags);
cm_free_msg(msg);
return ret;
}
cm_id->state = IB_CM_DREQ_SENT;
cm_id_priv->msg = msg;
out: spin_unlock_irqrestore(&cm_id_priv->lock, flags);
return ret;
}
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| sean hefty | sean hefty | 30 | 12.10% | 2 | 66.67% |
| Total | 248 | 100.00% | 3 | 100.00% |
EXPORT_SYMBOL(ib_send_cm_dreq);
static void cm_format_drep(struct cm_drep_msg *drep_msg,
struct cm_id_private *cm_id_priv,
const void *private_data,
u8 private_data_len)
{
cm_format_mad_hdr(&drep_msg->hdr, CM_DREP_ATTR_ID, cm_id_priv->tid);
drep_msg->local_comm_id = cm_id_priv->id.local_id;
drep_msg->remote_comm_id = cm_id_priv->id.remote_id;
if (private_data && private_data_len)
memcpy(drep_msg->private_data, private_data, private_data_len);
}
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| hal rosenstock | hal rosenstock | 75 | 100.00% | 1 | 100.00% |
| Total | 75 | 100.00% | 1 | 100.00% |
int ib_send_cm_drep(struct ib_cm_id *cm_id,
const void *private_data,
u8 private_data_len)
{
struct cm_id_private *cm_id_priv;
struct ib_mad_send_buf *msg;
unsigned long flags;
void *data;
int ret;
if (private_data && private_data_len > IB_CM_DREP_PRIVATE_DATA_SIZE)
return -EINVAL;
data = cm_copy_private_data(private_data, private_data_len);
if (IS_ERR(data))
return PTR_ERR(data);
cm_id_priv = container_of(cm_id, struct cm_id_private, id);
spin_lock_irqsave(&cm_id_priv->lock, flags);
if (cm_id->state != IB_CM_DREQ_RCVD) {
spin_unlock_irqrestore(&cm_id_priv->lock, flags);
kfree(data);
return -EINVAL;
}
cm_set_private_data(cm_id_priv, data, private_data_len);
cm_enter_timewait(cm_id_priv);
ret = cm_alloc_msg(cm_id_priv, &msg);
if (ret)
goto out;
cm_format_drep((struct cm_drep_msg *) msg->mad, cm_id_priv,
private_data, private_data_len);
ret = ib_post_send_mad(msg, NULL);
if (ret) {
spin_unlock_irqrestore(&cm_id_priv->lock, flags);
cm_free_msg(msg);
return ret;
}
out: spin_unlock_irqrestore(&cm_id_priv->lock, flags);
return ret;
}
Contributors
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| hal rosenstock | hal rosenstock | 220 | 99.55% | 1 | 50.00% |
| sean hefty | sean hefty | 1 | 0.45% | 1 | 50.00% |
| Total | 221 | 100.00% | 2 | 100.00% |
EXPORT_SYMBOL(ib_send_cm_drep);
static int cm_issue_drep(struct cm_port *port,
struct ib_mad_recv_wc *mad_recv_wc)
{
struct ib_mad_send_buf *msg = NULL;
struct cm_dreq_msg *dreq_msg;
struct cm_drep_msg *drep_msg;
int ret;
ret = cm_alloc_response_msg(port, mad_recv_wc, &msg);
if (ret)
return ret;
dreq_msg = (struct cm_dreq_msg *) mad_recv_wc->recv_buf.mad;
drep_msg = (struct cm_drep_msg *) msg->mad;
cm_format_mad_hdr(&drep_msg->hdr, CM_DREP_ATTR_ID, dreq_msg->hdr.tid);
drep_msg->remote_comm_id = dreq_msg->local_comm_id;
drep_msg->local_comm_id = dreq_msg->remote_comm_id;
ret = ib_post_send_mad(msg, NULL);
if (ret)
cm_free_msg(msg);
return ret;
}
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| Total | 132 | 100.00% | 1 | 100.00% |
static int cm_dreq_handler(struct cm_work *work)
{
struct cm_id_private *cm_id_priv;
struct cm_dreq_msg *dreq_msg;
struct ib_mad_send_buf *msg = NULL;
int ret;
dreq_msg = (struct cm_dreq_msg *)work->mad_recv_wc->recv_buf.mad;
cm_id_priv = cm_acquire_id(dreq_msg->remote_comm_id,
dreq_msg->local_comm_id);
if (!cm_id_priv) {
atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
counter[CM_DREQ_COUNTER]);
cm_issue_drep(work->port, work->mad_recv_wc);
return -EINVAL;
}
work->cm_event.private_data = &dreq_msg->private_data;
spin_lock_irq(&cm_id_priv->lock);
if (cm_id_priv->local_qpn != cm_dreq_get_remote_qpn(dreq_msg))
goto unlock;
switch (cm_id_priv->id.state) {
case IB_CM_REP_SENT:
case IB_CM_DREQ_SENT:
ib_cancel_mad(cm_id_priv->av.port->mad_agent, cm_id_priv->msg);
break;
case IB_CM_ESTABLISHED:
if (cm_id_priv->id.lap_state == IB_CM_LAP_SENT ||
cm_id_priv->id.lap_state == IB_CM_MRA_LAP_RCVD)
ib_cancel_mad(cm_id_priv->av.port->mad_agent, cm_id_priv->msg);
break;
case IB_CM_MRA_REP_RCVD:
break;
case IB_CM_TIMEWAIT:
atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
counter[CM_DREQ_COUNTER]);
if (cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg))
goto unlock;
cm_format_drep((struct cm_drep_msg *) msg->mad, cm_id_priv,
cm_id_priv->private_data,
cm_id_priv->private_data_len);
spin_unlock_irq(&cm_id_priv->lock);
if (ib_post_send_mad(msg, NULL))
cm_free_msg(msg);
goto deref;
case IB_CM_DREQ_RCVD:
atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
counter[CM_DREQ_COUNTER]);
goto unlock;
default:
goto unlock;
}
cm_id_priv->id.state = IB_CM_DREQ_RCVD;
cm_id_priv->tid = dreq_msg->hdr.tid;
ret = atomic_inc_and_test(&cm_id_priv->work_count);
if (!ret)
list_add_tail(&work->list, &cm_id_priv->work_list);
spin_unlock_irq(&cm_id_priv->lock);
if (ret)
cm_process_work(cm_id_priv, work);
else
cm_deref_id(cm_id_priv);
return 0;
unlock: spin_unlock_irq(&cm_id_priv->lock);
deref: cm_deref_id(cm_id_priv);
return -EINVAL;
}
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| sean hefty | sean hefty | 112 | 26.99% | 5 | 83.33% |
| Total | 415 | 100.00% | 6 | 100.00% |
static int cm_drep_handler(struct cm_work *work)
{
struct cm_id_private *cm_id_priv;
struct cm_drep_msg *drep_msg;
int ret;
drep_msg = (struct cm_drep_msg *)work->mad_recv_wc->recv_buf.mad;
cm_id_priv = cm_acquire_id(drep_msg->remote_comm_id,
drep_msg->local_comm_id);
if (!cm_id_priv)
return -EINVAL;
work->cm_event.private_data = &drep_msg->private_data;
spin_lock_irq(&cm_id_priv->lock);
if (cm_id_priv->id.state != IB_CM_DREQ_SENT &&
cm_id_priv->id.state != IB_CM_DREQ_RCVD) {
spin_unlock_irq(&cm_id_priv->lock);
goto out;
}
cm_enter_timewait(cm_id_priv);
ib_cancel_mad(cm_id_priv->av.port->mad_agent, cm_id_priv->msg);
ret = atomic_inc_and_test(&cm_id_priv->work_count);
if (!ret)
list_add_tail(&work->list, &cm_id_priv->work_list);
spin_unlock_irq(&cm_id_priv->lock);
if (ret)
cm_process_work(cm_id_priv, work);
else
cm_deref_id(cm_id_priv);
return 0;
out:
cm_deref_id(cm_id_priv);
return -EINVAL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
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| sean hefty | sean hefty | 3 | 1.52% | 1 | 50.00% |
| Total | 198 | 100.00% | 2 | 100.00% |
int ib_send_cm_rej(struct ib_cm_id *cm_id,
enum ib_cm_rej_reason reason,
void *ari,
u8 ari_length,
const void *private_data,
u8 private_data_len)
{
struct cm_id_private *cm_id_priv;
struct ib_mad_send_buf *msg;
unsigned long flags;
int ret;
if ((private_data && private_data_len > IB_CM_REJ_PRIVATE_DATA_SIZE) ||
(ari && ari_length > IB_CM_REJ_ARI_LENGTH))
return -EINVAL;
cm_id_priv = container_of(cm_id, struct cm_id_private, id);
spin_lock_irqsave(&cm_id_priv->lock, flags);
switch (cm_id->state) {
case IB_CM_REQ_SENT:
case IB_CM_MRA_REQ_RCVD:
case IB_CM_REQ_RCVD:
case IB_CM_MRA_REQ_SENT:
case IB_CM_REP_RCVD:
case IB_CM_MRA_REP_SENT:
ret = cm_alloc_msg(cm_id_priv, &msg);
if (!ret)
cm_format_rej((struct cm_rej_msg *) msg->mad,
cm_id_priv, reason, ari, ari_length,
private_data, private_data_len);
cm_reset_to_idle(cm_id_priv);
break;
case IB_CM_REP_SENT:
case IB_CM_MRA_REP_RCVD:
ret = cm_alloc_msg(cm_id_priv, &msg);
if (!ret)
cm_format_rej((struct cm_rej_msg *) msg->mad,
cm_id_priv, reason, ari, ari_length,
private_data, private_data_len);
cm_enter_timewait(cm_id_priv);
break;
default:
ret = -EINVAL;
goto out;
}
if (ret)
goto out;
ret = ib_post_send_mad(msg, NULL);
if (ret)
cm_free_msg(msg);
out: spin_unlock_irqrestore(&cm_id_priv->lock, flags);
return ret;
}
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| hal rosenstock | hal rosenstock | 260 | 99.62% | 1 | 50.00% |
| sean hefty | sean hefty | 1 | 0.38% | 1 | 50.00% |
| Total | 261 | 100.00% | 2 | 100.00% |
EXPORT_SYMBOL(ib_send_cm_rej);
static void cm_format_rej_event(struct cm_work *work)
{
struct cm_rej_msg *rej_msg;
struct ib_cm_rej_event_param *param;
rej_msg = (struct cm_rej_msg *)work->mad_recv_wc->recv_buf.mad;
param = &work->cm_event.param.rej_rcvd;
param->ari = rej_msg->ari;
param->ari_length = cm_rej_get_reject_info_len(rej_msg);
param->reason = __be16_to_cpu(rej_msg->reason);
work->cm_event.private_data = &rej_msg->private_data;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 83 | 96.51% | 1 | 50.00% |
| sean hefty | sean hefty | 3 | 3.49% | 1 | 50.00% |
| Total | 86 | 100.00% | 2 | 100.00% |
static struct cm_id_private * cm_acquire_rejected_id(struct cm_rej_msg *rej_msg)
{
struct cm_timewait_info *timewait_info;
struct cm_id_private *cm_id_priv;
__be32 remote_id;
remote_id = rej_msg->local_comm_id;
if (__be16_to_cpu(rej_msg->reason) == IB_CM_REJ_TIMEOUT) {
spin_lock_irq(&cm.lock);
timewait_info = cm_find_remote_id( *((__be64 *) rej_msg->ari),
remote_id);
if (!timewait_info) {
spin_unlock_irq(&cm.lock);
return NULL;
}
cm_id_priv = idr_find(&cm.local_id_table, (__force int)
(timewait_info->work.local_id ^
cm.random_id_operand));
if (cm_id_priv) {
if (cm_id_priv->id.remote_id == remote_id)
atomic_inc(&cm_id_priv->refcount);
else
cm_id_priv = NULL;
}
spin_unlock_irq(&cm.lock);
} else if (cm_rej_get_msg_rejected(rej_msg) == CM_MSG_RESPONSE_REQ)
cm_id_priv = cm_acquire_id(rej_msg->remote_comm_id, 0);
else
cm_id_priv = cm_acquire_id(rej_msg->remote_comm_id, remote_id);
return cm_id_priv;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 171 | 90.96% | 1 | 25.00% |
| sean hefty | sean hefty | 17 | 9.04% | 3 | 75.00% |
| Total | 188 | 100.00% | 4 | 100.00% |
static int cm_rej_handler(struct cm_work *work)
{
struct cm_id_private *cm_id_priv;
struct cm_rej_msg *rej_msg;
int ret;
rej_msg = (struct cm_rej_msg *)work->mad_recv_wc->recv_buf.mad;
cm_id_priv = cm_acquire_rejected_id(rej_msg);
if (!cm_id_priv)
return -EINVAL;
cm_format_rej_event(work);
spin_lock_irq(&cm_id_priv->lock);
switch (cm_id_priv->id.state) {
case IB_CM_REQ_SENT:
case IB_CM_MRA_REQ_RCVD:
case IB_CM_REP_SENT:
case IB_CM_MRA_REP_RCVD:
ib_cancel_mad(cm_id_priv->av.port->mad_agent, cm_id_priv->msg);
/* fall through */
case IB_CM_REQ_RCVD:
case IB_CM_MRA_REQ_SENT:
if (__be16_to_cpu(rej_msg->reason) == IB_CM_REJ_STALE_CONN)
cm_enter_timewait(cm_id_priv);
else
cm_reset_to_idle(cm_id_priv);
break;
case IB_CM_DREQ_SENT:
ib_cancel_mad(cm_id_priv->av.port->mad_agent, cm_id_priv->msg);
/* fall through */
case IB_CM_REP_RCVD:
case IB_CM_MRA_REP_SENT:
cm_enter_timewait(cm_id_priv);
break;
case IB_CM_ESTABLISHED:
if (cm_id_priv->id.lap_state == IB_CM_LAP_UNINIT ||
cm_id_priv->id.lap_state == IB_CM_LAP_SENT) {
if (cm_id_priv->id.lap_state == IB_CM_LAP_SENT)
ib_cancel_mad(cm_id_priv->av.port->mad_agent,
cm_id_priv->msg);
cm_enter_timewait(cm_id_priv);
break;
}
/* fall through */
default:
spin_unlock_irq(&cm_id_priv->lock);
ret = -EINVAL;
goto out;
}
ret = atomic_inc_and_test(&cm_id_priv->work_count);
if (!ret)
list_add_tail(&work->list, &cm_id_priv->work_list);
spin_unlock_irq(&cm_id_priv->lock);
if (ret)
cm_process_work(cm_id_priv, work);
else
cm_deref_id(cm_id_priv);
return 0;
out:
cm_deref_id(cm_id_priv);
return -EINVAL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 247 | 80.98% | 1 | 25.00% |
| sean hefty | sean hefty | 58 | 19.02% | 3 | 75.00% |
| Total | 305 | 100.00% | 4 | 100.00% |
int ib_send_cm_mra(struct ib_cm_id *cm_id,
u8 service_timeout,
const void *private_data,
u8 private_data_len)
{
struct cm_id_private *cm_id_priv;
struct ib_mad_send_buf *msg;
enum ib_cm_state cm_state;
enum ib_cm_lap_state lap_state;
enum cm_msg_response msg_response;
void *data;
unsigned long flags;
int ret;
if (private_data && private_data_len > IB_CM_MRA_PRIVATE_DATA_SIZE)
return -EINVAL;
data = cm_copy_private_data(private_data, private_data_len);
if (IS_ERR(data))
return PTR_ERR(data);
cm_id_priv = container_of(cm_id, struct cm_id_private, id);
spin_lock_irqsave(&cm_id_priv->lock, flags);
switch(cm_id_priv->id.state) {
case IB_CM_REQ_RCVD:
cm_state = IB_CM_MRA_REQ_SENT;
lap_state = cm_id->lap_state;
msg_response = CM_MSG_RESPONSE_REQ;
break;
case IB_CM_REP_RCVD:
cm_state = IB_CM_MRA_REP_SENT;
lap_state = cm_id->lap_state;
msg_response = CM_MSG_RESPONSE_REP;
break;
case IB_CM_ESTABLISHED:
if (cm_id->lap_state == IB_CM_LAP_RCVD) {
cm_state = cm_id->state;
lap_state = IB_CM_MRA_LAP_SENT;
msg_response = CM_MSG_RESPONSE_OTHER;
break;
}
default:
ret = -EINVAL;
goto error1;
}
if (!(service_timeout & IB_CM_MRA_FLAG_DELAY)) {
ret = cm_alloc_msg(cm_id_priv, &msg);
if (ret)
goto error1;
cm_format_mra((struct cm_mra_msg *) msg->mad, cm_id_priv,
msg_response, service_timeout,
private_data, private_data_len);
ret = ib_post_send_mad(msg, NULL);
if (ret)
goto error2;
}
cm_id->state = cm_state;
cm_id->lap_state = lap_state;
cm_id_priv->service_timeout = service_timeout;
cm_set_private_data(cm_id_priv, data, private_data_len);
spin_unlock_irqrestore(&cm_id_priv->lock, flags);
return 0;
error1: spin_unlock_irqrestore(&cm_id_priv->lock, flags);
kfree(data);
return ret;
error2: spin_unlock_irqrestore(&cm_id_priv->lock, flags);
kfree(data);
cm_free_msg(msg);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 265 | 77.03% | 1 | 25.00% |
| sean hefty | sean hefty | 79 | 22.97% | 3 | 75.00% |
| Total | 344 | 100.00% | 4 | 100.00% |
EXPORT_SYMBOL(ib_send_cm_mra);
static struct cm_id_private * cm_acquire_mraed_id(struct cm_mra_msg *mra_msg)
{
switch (cm_mra_get_msg_mraed(mra_msg)) {
case CM_MSG_RESPONSE_REQ:
return cm_acquire_id(mra_msg->remote_comm_id, 0);
case CM_MSG_RESPONSE_REP:
case CM_MSG_RESPONSE_OTHER:
return cm_acquire_id(mra_msg->remote_comm_id,
mra_msg->local_comm_id);
default:
return NULL;
}
}
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| hal rosenstock | hal rosenstock | 57 | 100.00% | 1 | 100.00% |
| Total | 57 | 100.00% | 1 | 100.00% |
static int cm_mra_handler(struct cm_work *work)
{
struct cm_id_private *cm_id_priv;
struct cm_mra_msg *mra_msg;
int timeout, ret;
mra_msg = (struct cm_mra_msg *)work->mad_recv_wc->recv_buf.mad;
cm_id_priv = cm_acquire_mraed_id(mra_msg);
if (!cm_id_priv)
return -EINVAL;
work->cm_event.private_data = &mra_msg->private_data;
work->cm_event.param.mra_rcvd.service_timeout =
cm_mra_get_service_timeout(mra_msg);
timeout = cm_convert_to_ms(cm_mra_get_service_timeout(mra_msg)) +
cm_convert_to_ms(cm_id_priv->av.timeout);
spin_lock_irq(&cm_id_priv->lock);
switch (cm_id_priv->id.state) {
case IB_CM_REQ_SENT:
if (cm_mra_get_msg_mraed(mra_msg) != CM_MSG_RESPONSE_REQ ||
ib_modify_mad(cm_id_priv->av.port->mad_agent,
cm_id_priv->msg, timeout))
goto out;
cm_id_priv->id.state = IB_CM_MRA_REQ_RCVD;
break;
case IB_CM_REP_SENT:
if (cm_mra_get_msg_mraed(mra_msg) != CM_MSG_RESPONSE_REP ||
ib_modify_mad(cm_id_priv->av.port->mad_agent,
cm_id_priv->msg, timeout))
goto out;
cm_id_priv->id.state = IB_CM_MRA_REP_RCVD;
break;
case IB_CM_ESTABLISHED:
if (cm_mra_get_msg_mraed(mra_msg) != CM_MSG_RESPONSE_OTHER ||
cm_id_priv->id.lap_state != IB_CM_LAP_SENT ||
ib_modify_mad(cm_id_priv->av.port->mad_agent,
cm_id_priv->msg, timeout)) {
if (cm_id_priv->id.lap_state == IB_CM_MRA_LAP_RCVD)
atomic_long_inc(&work->port->
counter_group[CM_RECV_DUPLICATES].
counter[CM_MRA_COUNTER]);
goto out;
}
cm_id_priv->id.lap_state = IB_CM_MRA_LAP_RCVD;
break;
case IB_CM_MRA_REQ_RCVD:
case IB_CM_MRA_REP_RCVD:
atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
counter[CM_MRA_COUNTER]);
/* fall through */
default:
goto out;
}
cm_id_priv->msg->context[1] = (void *) (unsigned long)
cm_id_priv->id.state;
ret = atomic_inc_and_test(&cm_id_priv->work_count);
if (!ret)
list_add_tail(&work->list, &cm_id_priv->work_list);
spin_unlock_irq(&cm_id_priv->lock);
if (ret)
cm_process_work(cm_id_priv, work);
else
cm_deref_id(cm_id_priv);
return 0;
out:
spin_unlock_irq(&cm_id_priv->lock);
cm_deref_id(cm_id_priv);
return -EINVAL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 349 | 85.54% | 1 | 25.00% |
| sean hefty | sean hefty | 59 | 14.46% | 3 | 75.00% |
| Total | 408 | 100.00% | 4 | 100.00% |
static void cm_format_lap(struct cm_lap_msg *lap_msg,
struct cm_id_private *cm_id_priv,
struct ib_sa_path_rec *alternate_path,
const void *private_data,
u8 private_data_len)
{
cm_format_mad_hdr(&lap_msg->hdr, CM_LAP_ATTR_ID,
cm_form_tid(cm_id_priv, CM_MSG_SEQUENCE_LAP));
lap_msg->local_comm_id = cm_id_priv->id.local_id;
lap_msg->remote_comm_id = cm_id_priv->id.remote_id;
cm_lap_set_remote_qpn(lap_msg, cm_id_priv->remote_qpn);
/* todo: need remote CM response timeout */
cm_lap_set_remote_resp_timeout(lap_msg, 0x1F);
lap_msg->alt_local_lid = alternate_path->slid;
lap_msg->alt_remote_lid = alternate_path->dlid;
lap_msg->alt_local_gid = alternate_path->sgid;
lap_msg->alt_remote_gid = alternate_path->dgid;
cm_lap_set_flow_label(lap_msg, alternate_path->flow_label);
cm_lap_set_traffic_class(lap_msg, alternate_path->traffic_class);
lap_msg->alt_hop_limit = alternate_path->hop_limit;
cm_lap_set_packet_rate(lap_msg, alternate_path->rate);
cm_lap_set_sl(lap_msg, alternate_path->sl);
cm_lap_set_subnet_local(lap_msg, 1); /* local only... */
cm_lap_set_local_ack_timeout(lap_msg,
cm_ack_timeout(cm_id_priv->av.port->cm_dev->ack_delay,
alternate_path->packet_life_time));
if (private_data && private_data_len)
memcpy(lap_msg->private_data, private_data, private_data_len);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 196 | 95.15% | 1 | 50.00% |
| sean hefty | sean hefty | 10 | 4.85% | 1 | 50.00% |
| Total | 206 | 100.00% | 2 | 100.00% |
int ib_send_cm_lap(struct ib_cm_id *cm_id,
struct ib_sa_path_rec *alternate_path,
const void *private_data,
u8 private_data_len)
{
struct cm_id_private *cm_id_priv;
struct ib_mad_send_buf *msg;
unsigned long flags;
int ret;
if (private_data && private_data_len > IB_CM_LAP_PRIVATE_DATA_SIZE)
return -EINVAL;
cm_id_priv = container_of(cm_id, struct cm_id_private, id);
spin_lock_irqsave(&cm_id_priv->lock, flags);
if (cm_id->state != IB_CM_ESTABLISHED ||
(cm_id->lap_state != IB_CM_LAP_UNINIT &&
cm_id->lap_state != IB_CM_LAP_IDLE)) {
ret = -EINVAL;
goto out;
}
ret = cm_init_av_by_path(alternate_path, &cm_id_priv->alt_av);
if (ret)
goto out;
cm_id_priv->alt_av.timeout =
cm_ack_timeout(cm_id_priv->target_ack_delay,
cm_id_priv->alt_av.timeout - 1);
ret = cm_alloc_msg(cm_id_priv, &msg);
if (ret)
goto out;
cm_format_lap((struct cm_lap_msg *) msg->mad, cm_id_priv,
alternate_path, private_data, private_data_len);
msg->timeout_ms = cm_id_priv->timeout_ms;
msg->context[1] = (void *) (unsigned long) IB_CM_ESTABLISHED;
ret = ib_post_send_mad(msg, NULL);
if (ret) {
spin_unlock_irqrestore(&cm_id_priv->lock, flags);
cm_free_msg(msg);
return ret;
}
cm_id->lap_state = IB_CM_LAP_SENT;
cm_id_priv->msg = msg;
out: spin_unlock_irqrestore(&cm_id_priv->lock, flags);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 219 | 81.72% | 1 | 25.00% |
| sean hefty | sean hefty | 49 | 18.28% | 3 | 75.00% |
| Total | 268 | 100.00% | 4 | 100.00% |
EXPORT_SYMBOL(ib_send_cm_lap);
static void cm_format_path_from_lap(struct cm_id_private *cm_id_priv,
struct ib_sa_path_rec *path,
struct cm_lap_msg *lap_msg)
{
memset(path, 0, sizeof *path);
path->dgid = lap_msg->alt_local_gid;
path->sgid = lap_msg->alt_remote_gid;
path->dlid = lap_msg->alt_local_lid;
path->slid = lap_msg->alt_remote_lid;
path->flow_label = cm_lap_get_flow_label(lap_msg);
path->hop_limit = lap_msg->alt_hop_limit;
path->traffic_class = cm_lap_get_traffic_class(lap_msg);
path->reversible = 1;
path->pkey = cm_id_priv->pkey;
path->sl = cm_lap_get_sl(lap_msg);
path->mtu_selector = IB_SA_EQ;
path->mtu = cm_id_priv->path_mtu;
path->rate_selector = IB_SA_EQ;
path->rate = cm_lap_get_packet_rate(lap_msg);
path->packet_life_time_selector = IB_SA_EQ;
path->packet_life_time = cm_lap_get_local_ack_timeout(lap_msg);
path->packet_life_time -= (path->packet_life_time > 0);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 148 | 87.57% | 1 | 50.00% |
| sean hefty | sean hefty | 21 | 12.43% | 1 | 50.00% |
| Total | 169 | 100.00% | 2 | 100.00% |
static int cm_lap_handler(struct cm_work *work)
{
struct cm_id_private *cm_id_priv;
struct cm_lap_msg *lap_msg;
struct ib_cm_lap_event_param *param;
struct ib_mad_send_buf *msg = NULL;
int ret;
/* todo: verify LAP request and send reject APR if invalid. */
lap_msg = (struct cm_lap_msg *)work->mad_recv_wc->recv_buf.mad;
cm_id_priv = cm_acquire_id(lap_msg->remote_comm_id,
lap_msg->local_comm_id);
if (!cm_id_priv)
return -EINVAL;
param = &work->cm_event.param.lap_rcvd;
param->alternate_path = &work->path[0];
cm_format_path_from_lap(cm_id_priv, param->alternate_path, lap_msg);
work->cm_event.private_data = &lap_msg->private_data;
spin_lock_irq(&cm_id_priv->lock);
if (cm_id_priv->id.state != IB_CM_ESTABLISHED)
goto unlock;
switch (cm_id_priv->id.lap_state) {
case IB_CM_LAP_UNINIT:
case IB_CM_LAP_IDLE:
break;
case IB_CM_MRA_LAP_SENT:
atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
counter[CM_LAP_COUNTER]);
if (cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg))
goto unlock;
cm_format_mra((struct cm_mra_msg *) msg->mad, cm_id_priv,
CM_MSG_RESPONSE_OTHER,
cm_id_priv->service_timeout,
cm_id_priv->private_data,
cm_id_priv->private_data_len);
spin_unlock_irq(&cm_id_priv->lock);
if (ib_post_send_mad(msg, NULL))
cm_free_msg(msg);
goto deref;
case IB_CM_LAP_RCVD:
atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
counter[CM_LAP_COUNTER]);
goto unlock;
default:
goto unlock;
}
cm_id_priv->id.lap_state = IB_CM_LAP_RCVD;
cm_id_priv->tid = lap_msg->hdr.tid;
cm_init_av_for_response(work->port, work->mad_recv_wc->wc,
work->mad_recv_wc->recv_buf.grh,
&cm_id_priv->av);
cm_init_av_by_path(param->alternate_path, &cm_id_priv->alt_av);
ret = atomic_inc_and_test(&cm_id_priv->work_count);
if (!ret)
list_add_tail(&work->list, &cm_id_priv->work_list);
spin_unlock_irq(&cm_id_priv->lock);
if (ret)
cm_process_work(cm_id_priv, work);
else
cm_deref_id(cm_id_priv);
return 0;
unlock: spin_unlock_irq(&cm_id_priv->lock);
deref: cm_deref_id(cm_id_priv);
return -EINVAL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 321 | 78.10% | 1 | 20.00% |
| sean hefty | sean hefty | 90 | 21.90% | 4 | 80.00% |
| Total | 411 | 100.00% | 5 | 100.00% |
static void cm_format_apr(struct cm_apr_msg *apr_msg,
struct cm_id_private *cm_id_priv,
enum ib_cm_apr_status status,
void *info,
u8 info_length,
const void *private_data,
u8 private_data_len)
{
cm_format_mad_hdr(&apr_msg->hdr, CM_APR_ATTR_ID, cm_id_priv->tid);
apr_msg->local_comm_id = cm_id_priv->id.local_id;
apr_msg->remote_comm_id = cm_id_priv->id.remote_id;
apr_msg->ap_status = (u8) status;
if (info && info_length) {
apr_msg->info_length = info_length;
memcpy(apr_msg->info, info, info_length);
}
if (private_data && private_data_len)
memcpy(apr_msg->private_data, private_data, private_data_len);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 120 | 100.00% | 1 | 100.00% |
| Total | 120 | 100.00% | 1 | 100.00% |
int ib_send_cm_apr(struct ib_cm_id *cm_id,
enum ib_cm_apr_status status,
void *info,
u8 info_length,
const void *private_data,
u8 private_data_len)
{
struct cm_id_private *cm_id_priv;
struct ib_mad_send_buf *msg;
unsigned long flags;
int ret;
if ((private_data && private_data_len > IB_CM_APR_PRIVATE_DATA_SIZE) ||
(info && info_length > IB_CM_APR_INFO_LENGTH))
return -EINVAL;
cm_id_priv = container_of(cm_id, struct cm_id_private, id);
spin_lock_irqsave(&cm_id_priv->lock, flags);
if (cm_id->state != IB_CM_ESTABLISHED ||
(cm_id->lap_state != IB_CM_LAP_RCVD &&
cm_id->lap_state != IB_CM_MRA_LAP_SENT)) {
ret = -EINVAL;
goto out;
}
ret = cm_alloc_msg(cm_id_priv, &msg);
if (ret)
goto out;
cm_format_apr((struct cm_apr_msg *) msg->mad, cm_id_priv, status,
info, info_length, private_data, private_data_len);
ret = ib_post_send_mad(msg, NULL);
if (ret) {
spin_unlock_irqrestore(&cm_id_priv->lock, flags);
cm_free_msg(msg);
return ret;
}
cm_id->lap_state = IB_CM_LAP_IDLE;
out: spin_unlock_irqrestore(&cm_id_priv->lock, flags);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 216 | 99.54% | 1 | 50.00% |
| sean hefty | sean hefty | 1 | 0.46% | 1 | 50.00% |
| Total | 217 | 100.00% | 2 | 100.00% |
EXPORT_SYMBOL(ib_send_cm_apr);
static int cm_apr_handler(struct cm_work *work)
{
struct cm_id_private *cm_id_priv;
struct cm_apr_msg *apr_msg;
int ret;
apr_msg = (struct cm_apr_msg *)work->mad_recv_wc->recv_buf.mad;
cm_id_priv = cm_acquire_id(apr_msg->remote_comm_id,
apr_msg->local_comm_id);
if (!cm_id_priv)
return -EINVAL; /* Unmatched reply. */
work->cm_event.param.apr_rcvd.ap_status = apr_msg->ap_status;
work->cm_event.param.apr_rcvd.apr_info = &apr_msg->info;
work->cm_event.param.apr_rcvd.info_len = apr_msg->info_length;
work->cm_event.private_data = &apr_msg->private_data;
spin_lock_irq(&cm_id_priv->lock);
if (cm_id_priv->id.state != IB_CM_ESTABLISHED ||
(cm_id_priv->id.lap_state != IB_CM_LAP_SENT &&
cm_id_priv->id.lap_state != IB_CM_MRA_LAP_RCVD)) {
spin_unlock_irq(&cm_id_priv->lock);
goto out;
}
cm_id_priv->id.lap_state = IB_CM_LAP_IDLE;
ib_cancel_mad(cm_id_priv->av.port->mad_agent, cm_id_priv->msg);
cm_id_priv->msg = NULL;
ret = atomic_inc_and_test(&cm_id_priv->work_count);
if (!ret)
list_add_tail(&work->list, &cm_id_priv->work_list);
spin_unlock_irq(&cm_id_priv->lock);
if (ret)
cm_process_work(cm_id_priv, work);
else
cm_deref_id(cm_id_priv);
return 0;
out:
cm_deref_id(cm_id_priv);
return -EINVAL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 258 | 98.85% | 1 | 50.00% |
| sean hefty | sean hefty | 3 | 1.15% | 1 | 50.00% |
| Total | 261 | 100.00% | 2 | 100.00% |
static int cm_timewait_handler(struct cm_work *work)
{
struct cm_timewait_info *timewait_info;
struct cm_id_private *cm_id_priv;
int ret;
timewait_info = (struct cm_timewait_info *)work;
spin_lock_irq(&cm.lock);
list_del(&timewait_info->list);
spin_unlock_irq(&cm.lock);
cm_id_priv = cm_acquire_id(timewait_info->work.local_id,
timewait_info->work.remote_id);
if (!cm_id_priv)
return -EINVAL;
spin_lock_irq(&cm_id_priv->lock);
if (cm_id_priv->id.state != IB_CM_TIMEWAIT ||
cm_id_priv->remote_qpn != timewait_info->remote_qpn) {
spin_unlock_irq(&cm_id_priv->lock);
goto out;
}
cm_id_priv->id.state = IB_CM_IDLE;
ret = atomic_inc_and_test(&cm_id_priv->work_count);
if (!ret)
list_add_tail(&work->list, &cm_id_priv->work_list);
spin_unlock_irq(&cm_id_priv->lock);
if (ret)
cm_process_work(cm_id_priv, work);
else
cm_deref_id(cm_id_priv);
return 0;
out:
cm_deref_id(cm_id_priv);
return -EINVAL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 174 | 88.32% | 1 | 50.00% |
| sean hefty | sean hefty | 23 | 11.68% | 1 | 50.00% |
| Total | 197 | 100.00% | 2 | 100.00% |
static void cm_format_sidr_req(struct cm_sidr_req_msg *sidr_req_msg,
struct cm_id_private *cm_id_priv,
struct ib_cm_sidr_req_param *param)
{
cm_format_mad_hdr(&sidr_req_msg->hdr, CM_SIDR_REQ_ATTR_ID,
cm_form_tid(cm_id_priv, CM_MSG_SEQUENCE_SIDR));
sidr_req_msg->request_id = cm_id_priv->id.local_id;
sidr_req_msg->pkey = param->path->pkey;
sidr_req_msg->service_id = param->service_id;
if (param->private_data && param->private_data_len)
memcpy(sidr_req_msg->private_data, param->private_data,
param->private_data_len);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 89 | 97.80% | 1 | 50.00% |
| sean hefty | sean hefty | 2 | 2.20% | 1 | 50.00% |
| Total | 91 | 100.00% | 2 | 100.00% |
int ib_send_cm_sidr_req(struct ib_cm_id *cm_id,
struct ib_cm_sidr_req_param *param)
{
struct cm_id_private *cm_id_priv;
struct ib_mad_send_buf *msg;
unsigned long flags;
int ret;
if (!param->path || (param->private_data &&
param->private_data_len > IB_CM_SIDR_REQ_PRIVATE_DATA_SIZE))
return -EINVAL;
cm_id_priv = container_of(cm_id, struct cm_id_private, id);
ret = cm_init_av_by_path(param->path, &cm_id_priv->av);
if (ret)
goto out;
cm_id->service_id = param->service_id;
cm_id->service_mask = ~cpu_to_be64(0);
cm_id_priv->timeout_ms = param->timeout_ms;
cm_id_priv->max_cm_retries = param->max_cm_retries;
ret = cm_alloc_msg(cm_id_priv, &msg);
if (ret)
goto out;
cm_format_sidr_req((struct cm_sidr_req_msg *) msg->mad, cm_id_priv,
param);
msg->timeout_ms = cm_id_priv->timeout_ms;
msg->context[1] = (void *) (unsigned long) IB_CM_SIDR_REQ_SENT;
spin_lock_irqsave(&cm_id_priv->lock, flags);
if (cm_id->state == IB_CM_IDLE)
ret = ib_post_send_mad(msg, NULL);
else
ret = -EINVAL;
if (ret) {
spin_unlock_irqrestore(&cm_id_priv->lock, flags);
cm_free_msg(msg);
goto out;
}
cm_id->state = IB_CM_SIDR_REQ_SENT;
cm_id_priv->msg = msg;
spin_unlock_irqrestore(&cm_id_priv->lock, flags);
out:
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 259 | 98.11% | 1 | 25.00% |
| harvey harrison | harvey harrison | 3 | 1.14% | 1 | 25.00% |
| sean hefty | sean hefty | 2 | 0.76% | 2 | 50.00% |
| Total | 264 | 100.00% | 4 | 100.00% |
EXPORT_SYMBOL(ib_send_cm_sidr_req);
static void cm_format_sidr_req_event(struct cm_work *work,
struct ib_cm_id *listen_id)
{
struct cm_sidr_req_msg *sidr_req_msg;
struct ib_cm_sidr_req_event_param *param;
sidr_req_msg = (struct cm_sidr_req_msg *)
work->mad_recv_wc->recv_buf.mad;
param = &work->cm_event.param.sidr_req_rcvd;
param->pkey = __be16_to_cpu(sidr_req_msg->pkey);
param->listen_id = listen_id;
param->service_id = sidr_req_msg->service_id;
param->bth_pkey = cm_get_bth_pkey(work);
param->port = work->port->port_num;
work->cm_event.private_data = &sidr_req_msg->private_data;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 87 | 81.31% | 1 | 25.00% |
| haggai eran | haggai eran | 17 | 15.89% | 2 | 50.00% |
| sean hefty | sean hefty | 3 | 2.80% | 1 | 25.00% |
| Total | 107 | 100.00% | 4 | 100.00% |
static int cm_sidr_req_handler(struct cm_work *work)
{
struct ib_cm_id *cm_id;
struct cm_id_private *cm_id_priv, *cur_cm_id_priv;
struct cm_sidr_req_msg *sidr_req_msg;
struct ib_wc *wc;
cm_id = ib_create_cm_id(work->port->cm_dev->ib_device, NULL, NULL);
if (IS_ERR(cm_id))
return PTR_ERR(cm_id);
cm_id_priv = container_of(cm_id, struct cm_id_private, id);
/* Record SGID/SLID and request ID for lookup. */
sidr_req_msg = (struct cm_sidr_req_msg *)
work->mad_recv_wc->recv_buf.mad;
wc = work->mad_recv_wc->wc;
cm_id_priv->av.dgid.global.subnet_prefix = cpu_to_be64(wc->slid);
cm_id_priv->av.dgid.global.interface_id = 0;
cm_init_av_for_response(work->port, work->mad_recv_wc->wc,
work->mad_recv_wc->recv_buf.grh,
&cm_id_priv->av);
cm_id_priv->id.remote_id = sidr_req_msg->request_id;
cm_id_priv->tid = sidr_req_msg->hdr.tid;
atomic_inc(&cm_id_priv->work_count);
spin_lock_irq(&cm.lock);
cur_cm_id_priv = cm_insert_remote_sidr(cm_id_priv);
if (cur_cm_id_priv) {
spin_unlock_irq(&cm.lock);
atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES].
counter[CM_SIDR_REQ_COUNTER]);
goto out; /* Duplicate message. */
}
cm_id_priv->id.state = IB_CM_SIDR_REQ_RCVD;
cur_cm_id_priv = cm_find_listen(cm_id->device,
sidr_req_msg->service_id);
if (!cur_cm_id_priv) {
spin_unlock_irq(&cm.lock);
cm_reject_sidr_req(cm_id_priv, IB_SIDR_UNSUPPORTED);
goto out; /* No match. */
}
atomic_inc(&cur_cm_id_priv->refcount);
atomic_inc(&cm_id_priv->refcount);
spin_unlock_irq(&cm.lock);
cm_id_priv->id.cm_handler = cur_cm_id_priv->id.cm_handler;
cm_id_priv->id.context = cur_cm_id_priv->id.context;
cm_id_priv->id.service_id = sidr_req_msg->service_id;
cm_id_priv->id.service_mask = ~cpu_to_be64(0);
cm_format_sidr_req_event(work, &cur_cm_id_priv->id);
cm_process_work(cm_id_priv, work);
cm_deref_id(cur_cm_id_priv);
return 0;
out:
ib_destroy_cm_id(&cm_id_priv->id);
return -EINVAL;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 320 | 82.05% | 1 | 9.09% |
| sean hefty | sean hefty | 66 | 16.92% | 8 | 72.73% |
| harvey harrison | harvey harrison | 3 | 0.77% | 1 | 9.09% |
| greg kroah-hartman | greg kroah-hartman | 1 | 0.26% | 1 | 9.09% |
| Total | 390 | 100.00% | 11 | 100.00% |
static void cm_format_sidr_rep(struct cm_sidr_rep_msg *sidr_rep_msg,
struct cm_id_private *cm_id_priv,
struct ib_cm_sidr_rep_param *param)
{
cm_format_mad_hdr(&sidr_rep_msg->hdr, CM_SIDR_REP_ATTR_ID,
cm_id_priv->tid);
sidr_rep_msg->request_id = cm_id_priv->id.remote_id;
sidr_rep_msg->status = param->status;
cm_sidr_rep_set_qpn(sidr_rep_msg, cpu_to_be32(param->qp_num));
sidr_rep_msg->service_id = cm_id_priv->id.service_id;
sidr_rep_msg->qkey = cpu_to_be32(param->qkey);
if (param->info && param->info_length)
memcpy(sidr_rep_msg->info, param->info, param->info_length);
if (param->private_data && param->private_data_len)
memcpy(sidr_rep_msg->private_data, param->private_data,
param->private_data_len);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 136 | 100.00% | 1 | 100.00% |
| Total | 136 | 100.00% | 1 | 100.00% |
int ib_send_cm_sidr_rep(struct ib_cm_id *cm_id,
struct ib_cm_sidr_rep_param *param)
{
struct cm_id_private *cm_id_priv;
struct ib_mad_send_buf *msg;
unsigned long flags;
int ret;
if ((param->info && param->info_length > IB_CM_SIDR_REP_INFO_LENGTH) ||
(param->private_data &&
param->private_data_len > IB_CM_SIDR_REP_PRIVATE_DATA_SIZE))
return -EINVAL;
cm_id_priv = container_of(cm_id, struct cm_id_private, id);
spin_lock_irqsave(&cm_id_priv->lock, flags);
if (cm_id->state != IB_CM_SIDR_REQ_RCVD) {
ret = -EINVAL;
goto error;
}
ret = cm_alloc_msg(cm_id_priv, &msg);
if (ret)
goto error;
cm_format_sidr_rep((struct cm_sidr_rep_msg *) msg->mad, cm_id_priv,
param);
ret = ib_post_send_mad(msg, NULL);
if (ret) {
spin_unlock_irqrestore(&cm_id_priv->lock, flags);
cm_free_msg(msg);
return ret;
}
cm_id->state = IB_CM_IDLE;
spin_unlock_irqrestore(&cm_id_priv->lock, flags);
spin_lock_irqsave(&cm.lock, flags);
if (!RB_EMPTY_NODE(&cm_id_priv->sidr_id_node)) {
rb_erase(&cm_id_priv->sidr_id_node, &cm.remote_sidr_table);
RB_CLEAR_NODE(&cm_id_priv->sidr_id_node);
}
spin_unlock_irqrestore(&cm.lock, flags);
return 0;
error: spin_unlock_irqrestore(&cm_id_priv->lock, flags);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 234 | 91.41% | 1 | 33.33% |
| doron tsur | doron tsur | 21 | 8.20% | 1 | 33.33% |
| sean hefty | sean hefty | 1 | 0.39% | 1 | 33.33% |
| Total | 256 | 100.00% | 3 | 100.00% |
EXPORT_SYMBOL(ib_send_cm_sidr_rep);
static void cm_format_sidr_rep_event(struct cm_work *work)
{
struct cm_sidr_rep_msg *sidr_rep_msg;
struct ib_cm_sidr_rep_event_param *param;
sidr_rep_msg = (struct cm_sidr_rep_msg *)
work->mad_recv_wc->recv_buf.mad;
param = &work->cm_event.param.sidr_rep_rcvd;
param->status = sidr_rep_msg->status;
param->qkey = be32_to_cpu(sidr_rep_msg->qkey);
param->qpn = be32_to_cpu(cm_sidr_rep_get_qpn(sidr_rep_msg));
param->info = &sidr_rep_msg->info;
param->info_len = sidr_rep_msg->info_length;
work->cm_event.private_data = &sidr_rep_msg->private_data;
}
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| hal rosenstock | hal rosenstock | 106 | 100.00% | 1 | 100.00% |
| Total | 106 | 100.00% | 1 | 100.00% |
static int cm_sidr_rep_handler(struct cm_work *work)
{
struct cm_sidr_rep_msg *sidr_rep_msg;
struct cm_id_private *cm_id_priv;
sidr_rep_msg = (struct cm_sidr_rep_msg *)
work->mad_recv_wc->recv_buf.mad;
cm_id_priv = cm_acquire_id(sidr_rep_msg->request_id, 0);
if (!cm_id_priv)
return -EINVAL; /* Unmatched reply. */
spin_lock_irq(&cm_id_priv->lock);
if (cm_id_priv->id.state != IB_CM_SIDR_REQ_SENT) {
spin_unlock_irq(&cm_id_priv->lock);
goto out;
}
cm_id_priv->id.state = IB_CM_IDLE;
ib_cancel_mad(cm_id_priv->av.port->mad_agent, cm_id_priv->msg);
spin_unlock_irq(&cm_id_priv->lock);
cm_format_sidr_rep_event(work);
cm_process_work(cm_id_priv, work);
return 0;
out:
cm_deref_id(cm_id_priv);
return -EINVAL;
}
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| hal rosenstock | hal rosenstock | 142 | 97.93% | 1 | 50.00% |
| sean hefty | sean hefty | 3 | 2.07% | 1 | 50.00% |
| Total | 145 | 100.00% | 2 | 100.00% |
static void cm_process_send_error(struct ib_mad_send_buf *msg,
enum ib_wc_status wc_status)
{
struct cm_id_private *cm_id_priv;
struct ib_cm_event cm_event;
enum ib_cm_state state;
int ret;
memset(&cm_event, 0, sizeof cm_event);
cm_id_priv = msg->context[0];
/* Discard old sends or ones without a response. */
spin_lock_irq(&cm_id_priv->lock);
state = (enum ib_cm_state) (unsigned long) msg->context[1];
if (msg != cm_id_priv->msg || state != cm_id_priv->id.state)
goto discard;
switch (state) {
case IB_CM_REQ_SENT:
case IB_CM_MRA_REQ_RCVD:
cm_reset_to_idle(cm_id_priv);
cm_event.event = IB_CM_REQ_ERROR;
break;
case IB_CM_REP_SENT:
case IB_CM_MRA_REP_RCVD:
cm_reset_to_idle(cm_id_priv);
cm_event.event = IB_CM_REP_ERROR;
break;
case IB_CM_DREQ_SENT:
cm_enter_timewait(cm_id_priv);
cm_event.event = IB_CM_DREQ_ERROR;
break;
case IB_CM_SIDR_REQ_SENT:
cm_id_priv->id.state = IB_CM_IDLE;
cm_event.event = IB_CM_SIDR_REQ_ERROR;
break;
default:
goto discard;
}
spin_unlock_irq(&cm_id_priv->lock);
cm_event.param.send_status = wc_status;
/* No other events can occur on the cm_id at this point. */
ret = cm_id_priv->id.cm_handler(&cm_id_priv->id, &cm_event);
cm_free_msg(msg);
if (ret)
ib_destroy_cm_id(&cm_id_priv->id);
return;
discard:
spin_unlock_irq(&cm_id_priv->lock);
cm_free_msg(msg);
}
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| hal rosenstock | hal rosenstock | 239 | 98.76% | 1 | 50.00% |
| sean hefty | sean hefty | 3 | 1.24% | 1 | 50.00% |
| Total | 242 | 100.00% | 2 | 100.00% |
static void cm_send_handler(struct ib_mad_agent *mad_agent,
struct ib_mad_send_wc *mad_send_wc)
{
struct ib_mad_send_buf *msg = mad_send_wc->send_buf;
struct cm_port *port;
u16 attr_index;
port = mad_agent->context;
attr_index = be16_to_cpu(((struct ib_mad_hdr *)
msg->mad)->attr_id) - CM_ATTR_ID_OFFSET;
/*
* If the send was in response to a received message (context[0] is not
* set to a cm_id), and is not a REJ, then it is a send that was
* manually retried.
*/
if (!msg->context[0] && (attr_index != CM_REJ_COUNTER))
msg->retries = 1;
atomic_long_add(1 + msg->retries,
&port->counter_group[CM_XMIT].counter[attr_index]);
if (msg->retries)
atomic_long_add(msg->retries,
&port->counter_group[CM_XMIT_RETRIES].
counter[attr_index]);
switch (mad_send_wc->status) {
case IB_WC_SUCCESS:
case IB_WC_WR_FLUSH_ERR:
cm_free_msg(msg);
break;
default:
if (msg->context[0] && msg->context[1])
cm_process_send_error(msg, mad_send_wc->status);
else
cm_free_msg(msg);
break;
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| sean hefty | sean hefty | 108 | 59.02% | 2 | 66.67% |
| hal rosenstock | hal rosenstock | 75 | 40.98% | 1 | 33.33% |
| Total | 183 | 100.00% | 3 | 100.00% |
static void cm_work_handler(struct work_struct *_work)
{
struct cm_work *work = container_of(_work, struct cm_work, work.work);
int ret;
switch (work->cm_event.event) {
case IB_CM_REQ_RECEIVED:
ret = cm_req_handler(work);
break;
case IB_CM_MRA_RECEIVED:
ret = cm_mra_handler(work);
break;
case IB_CM_REJ_RECEIVED:
ret = cm_rej_handler(work);
break;
case IB_CM_REP_RECEIVED:
ret = cm_rep_handler(work);
break;
case IB_CM_RTU_RECEIVED:
ret = cm_rtu_handler(work);
break;
case IB_CM_USER_ESTABLISHED:
ret = cm_establish_handler(work);
break;
case IB_CM_DREQ_RECEIVED:
ret = cm_dreq_handler(work);
break;
case IB_CM_DREP_RECEIVED:
ret = cm_drep_handler(work);
break;
case IB_CM_SIDR_REQ_RECEIVED:
ret = cm_sidr_req_handler(work);
break;
case IB_CM_SIDR_REP_RECEIVED:
ret = cm_sidr_rep_handler(work);
break;
case IB_CM_LAP_RECEIVED:
ret = cm_lap_handler(work);
break;
case IB_CM_APR_RECEIVED:
ret = cm_apr_handler(work);
break;
case IB_CM_TIMEWAIT_EXIT:
ret = cm_timewait_handler(work);
break;
default:
ret = -EINVAL;
break;
}
if (ret)
cm_free_work(work);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 186 | 93.00% | 1 | 50.00% |
| david howells | david howells | 14 | 7.00% | 1 | 50.00% |
| Total | 200 | 100.00% | 2 | 100.00% |
static int cm_establish(struct ib_cm_id *cm_id)
{
struct cm_id_private *cm_id_priv;
struct cm_work *work;
unsigned long flags;
int ret = 0;
struct cm_device *cm_dev;
cm_dev = ib_get_client_data(cm_id->device, &cm_client);
if (!cm_dev)
return -ENODEV;
work = kmalloc(sizeof *work, GFP_ATOMIC);
if (!work)
return -ENOMEM;
cm_id_priv = container_of(cm_id, struct cm_id_private, id);
spin_lock_irqsave(&cm_id_priv->lock, flags);
switch (cm_id->state)
{
case IB_CM_REP_SENT:
case IB_CM_MRA_REP_RCVD:
cm_id->state = IB_CM_ESTABLISHED;
break;
case IB_CM_ESTABLISHED:
ret = -EISCONN;
break;
default:
ret = -EINVAL;
break;
}
spin_unlock_irqrestore(&cm_id_priv->lock, flags);
if (ret) {
kfree(work);
goto out;
}
/*
* The CM worker thread may try to destroy the cm_id before it
* can execute this work item. To prevent potential deadlock,
* we need to find the cm_id once we're in the context of the
* worker thread, rather than holding a reference on it.
*/
INIT_DELAYED_WORK(&work->work, cm_work_handler);
work->local_id = cm_id->local_id;
work->remote_id = cm_id->remote_id;
work->mad_recv_wc = NULL;
work->cm_event.event = IB_CM_USER_ESTABLISHED;
/* Check if the device started its remove_one */
spin_lock_irqsave(&cm.lock, flags);
if (!cm_dev->going_down) {
queue_delayed_work(cm.wq, &work->work, 0);
} else {
kfree(work);
ret = -ENODEV;
}
spin_unlock_irqrestore(&cm.lock, flags);
out:
return ret;
}
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| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 187 | 71.37% | 1 | 20.00% |
| erez shitrit | erez shitrit | 63 | 24.05% | 1 | 20.00% |
| bart van assche | bart van assche | 6 | 2.29% | 1 | 20.00% |
| david howells | david howells | 4 | 1.53% | 1 | 20.00% |
| sean hefty | sean hefty | 2 | 0.76% | 1 | 20.00% |
| Total | 262 | 100.00% | 5 | 100.00% |
static int cm_migrate(struct ib_cm_id *cm_id)
{
struct cm_id_private *cm_id_priv;
unsigned long flags;
int ret = 0;
cm_id_priv = container_of(cm_id, struct cm_id_private, id);
spin_lock_irqsave(&cm_id_priv->lock, flags);
if (cm_id->state == IB_CM_ESTABLISHED &&
(cm_id->lap_state == IB_CM_LAP_UNINIT ||
cm_id->lap_state == IB_CM_LAP_IDLE)) {
cm_id->lap_state = IB_CM_LAP_IDLE;
cm_id_priv->av = cm_id_priv->alt_av;
} else
ret = -EINVAL;
spin_unlock_irqrestore(&cm_id_priv->lock, flags);
return ret;
}
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| sean hefty | sean hefty | 104 | 100.00% | 1 | 100.00% |
| Total | 104 | 100.00% | 1 | 100.00% |
int ib_cm_notify(struct ib_cm_id *cm_id, enum ib_event_type event)
{
int ret;
switch (event) {
case IB_EVENT_COMM_EST:
ret = cm_establish(cm_id);
break;
case IB_EVENT_PATH_MIG:
ret = cm_migrate(cm_id);
break;
default:
ret = -EINVAL;
}
return ret;
}
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| sean hefty | sean hefty | 54 | 100.00% | 1 | 100.00% |
| Total | 54 | 100.00% | 1 | 100.00% |
EXPORT_SYMBOL(ib_cm_notify);
static void cm_recv_handler(struct ib_mad_agent *mad_agent,
struct ib_mad_send_buf *send_buf,
struct ib_mad_recv_wc *mad_recv_wc)
{
struct cm_port *port = mad_agent->context;
struct cm_work *work;
enum ib_cm_event_type event;
u16 attr_id;
int paths = 0;
int going_down = 0;
switch (mad_recv_wc->recv_buf.mad->mad_hdr.attr_id) {
case CM_REQ_ATTR_ID:
paths = 1 + (((struct cm_req_msg *) mad_recv_wc->recv_buf.mad)->
alt_local_lid != 0);
event = IB_CM_REQ_RECEIVED;
break;
case CM_MRA_ATTR_ID:
event = IB_CM_MRA_RECEIVED;
break;
case CM_REJ_ATTR_ID:
event = IB_CM_REJ_RECEIVED;
break;
case CM_REP_ATTR_ID:
event = IB_CM_REP_RECEIVED;
break;
case CM_RTU_ATTR_ID:
event = IB_CM_RTU_RECEIVED;
break;
case CM_DREQ_ATTR_ID:
event = IB_CM_DREQ_RECEIVED;
break;
case CM_DREP_ATTR_ID:
event = IB_CM_DREP_RECEIVED;
break;
case CM_SIDR_REQ_ATTR_ID:
event = IB_CM_SIDR_REQ_RECEIVED;
break;
case CM_SIDR_REP_ATTR_ID:
event = IB_CM_SIDR_REP_RECEIVED;
break;
case CM_LAP_ATTR_ID:
paths = 1;
event = IB_CM_LAP_RECEIVED;
break;
case CM_APR_ATTR_ID:
event = IB_CM_APR_RECEIVED;
break;
default:
ib_free_recv_mad(mad_recv_wc);
return;
}
attr_id = be16_to_cpu(mad_recv_wc->recv_buf.mad->mad_hdr.attr_id);
atomic_long_inc(&port->counter_group[CM_RECV].
counter[attr_id - CM_ATTR_ID_OFFSET]);
work = kmalloc(sizeof *work + sizeof(struct ib_sa_path_rec) * paths,
GFP_KERNEL);
if (!work) {
ib_free_recv_mad(mad_recv_wc);
return;
}
INIT_DELAYED_WORK(&work->work, cm_work_handler);
work->cm_event.event = event;
work->mad_recv_wc = mad_recv_wc;
work->port = port;
/* Check if the device started its remove_one */
spin_lock_irq(&cm.lock);
if (!port->cm_dev->going_down)
queue_delayed_work(cm.wq, &work->work, 0);
else
going_down = 1;
spin_unlock_irq(&cm.lock);
if (going_down) {
kfree(work);
ib_free_recv_mad(mad_recv_wc);
}
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 220 | 63.95% | 1 | 20.00% |
| sean hefty | sean hefty | 63 | 18.31% | 1 | 20.00% |
| erez shitrit | erez shitrit | 52 | 15.12% | 1 | 20.00% |
| christoph hellwig | christoph hellwig | 5 | 1.45% | 1 | 20.00% |
| david howells | david howells | 4 | 1.16% | 1 | 20.00% |
| Total | 344 | 100.00% | 5 | 100.00% |
static int cm_init_qp_init_attr(struct cm_id_private *cm_id_priv,
struct ib_qp_attr *qp_attr,
int *qp_attr_mask)
{
unsigned long flags;
int ret;
spin_lock_irqsave(&cm_id_priv->lock, flags);
switch (cm_id_priv->id.state) {
case IB_CM_REQ_SENT:
case IB_CM_MRA_REQ_RCVD:
case IB_CM_REQ_RCVD:
case IB_CM_MRA_REQ_SENT:
case IB_CM_REP_RCVD:
case IB_CM_MRA_REP_SENT:
case IB_CM_REP_SENT:
case IB_CM_MRA_REP_RCVD:
case IB_CM_ESTABLISHED:
*qp_attr_mask = IB_QP_STATE | IB_QP_ACCESS_FLAGS |
IB_QP_PKEY_INDEX | IB_QP_PORT;
qp_attr->qp_access_flags = IB_ACCESS_REMOTE_WRITE;
if (cm_id_priv->responder_resources)
qp_attr->qp_access_flags |= IB_ACCESS_REMOTE_READ |
IB_ACCESS_REMOTE_ATOMIC;
qp_attr->pkey_index = cm_id_priv->av.pkey_index;
qp_attr->port_num = cm_id_priv->av.port->port_num;
ret = 0;
break;
default:
ret = -EINVAL;
break;
}
spin_unlock_irqrestore(&cm_id_priv->lock, flags);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 149 | 98.03% | 1 | 33.33% |
| sean hefty | sean hefty | 3 | 1.97% | 2 | 66.67% |
| Total | 152 | 100.00% | 3 | 100.00% |
static int cm_init_qp_rtr_attr(struct cm_id_private *cm_id_priv,
struct ib_qp_attr *qp_attr,
int *qp_attr_mask)
{
unsigned long flags;
int ret;
spin_lock_irqsave(&cm_id_priv->lock, flags);
switch (cm_id_priv->id.state) {
case IB_CM_REQ_RCVD:
case IB_CM_MRA_REQ_SENT:
case IB_CM_REP_RCVD:
case IB_CM_MRA_REP_SENT:
case IB_CM_REP_SENT:
case IB_CM_MRA_REP_RCVD:
case IB_CM_ESTABLISHED:
*qp_attr_mask = IB_QP_STATE | IB_QP_AV | IB_QP_PATH_MTU |
IB_QP_DEST_QPN | IB_QP_RQ_PSN;
qp_attr->ah_attr = cm_id_priv->av.ah_attr;
qp_attr->path_mtu = cm_id_priv->path_mtu;
qp_attr->dest_qp_num = be32_to_cpu(cm_id_priv->remote_qpn);
qp_attr->rq_psn = be32_to_cpu(cm_id_priv->rq_psn);
if (cm_id_priv->qp_type == IB_QPT_RC ||
cm_id_priv->qp_type == IB_QPT_XRC_TGT) {
*qp_attr_mask |= IB_QP_MAX_DEST_RD_ATOMIC |
IB_QP_MIN_RNR_TIMER;
qp_attr->max_dest_rd_atomic =
cm_id_priv->responder_resources;
qp_attr->min_rnr_timer = 0;
}
if (cm_id_priv->alt_av.ah_attr.dlid) {
*qp_attr_mask |= IB_QP_ALT_PATH;
qp_attr->alt_port_num = cm_id_priv->alt_av.port->port_num;
qp_attr->alt_pkey_index = cm_id_priv->alt_av.pkey_index;
qp_attr->alt_timeout = cm_id_priv->alt_av.timeout;
qp_attr->alt_ah_attr = cm_id_priv->alt_av.ah_attr;
}
ret = 0;
break;
default:
ret = -EINVAL;
break;
}
spin_unlock_irqrestore(&cm_id_priv->lock, flags);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 187 | 77.27% | 1 | 16.67% |
| sean hefty | sean hefty | 55 | 22.73% | 5 | 83.33% |
| Total | 242 | 100.00% | 6 | 100.00% |
static int cm_init_qp_rts_attr(struct cm_id_private *cm_id_priv,
struct ib_qp_attr *qp_attr,
int *qp_attr_mask)
{
unsigned long flags;
int ret;
spin_lock_irqsave(&cm_id_priv->lock, flags);
switch (cm_id_priv->id.state) {
/* Allow transition to RTS before sending REP */
case IB_CM_REQ_RCVD:
case IB_CM_MRA_REQ_SENT:
case IB_CM_REP_RCVD:
case IB_CM_MRA_REP_SENT:
case IB_CM_REP_SENT:
case IB_CM_MRA_REP_RCVD:
case IB_CM_ESTABLISHED:
if (cm_id_priv->id.lap_state == IB_CM_LAP_UNINIT) {
*qp_attr_mask = IB_QP_STATE | IB_QP_SQ_PSN;
qp_attr->sq_psn = be32_to_cpu(cm_id_priv->sq_psn);
switch (cm_id_priv->qp_type) {
case IB_QPT_RC:
case IB_QPT_XRC_INI:
*qp_attr_mask |= IB_QP_RETRY_CNT | IB_QP_RNR_RETRY |
IB_QP_MAX_QP_RD_ATOMIC;
qp_attr->retry_cnt = cm_id_priv->retry_count;
qp_attr->rnr_retry = cm_id_priv->rnr_retry_count;
qp_attr->max_rd_atomic = cm_id_priv->initiator_depth;
/* fall through */
case IB_QPT_XRC_TGT:
*qp_attr_mask |= IB_QP_TIMEOUT;
qp_attr->timeout = cm_id_priv->av.timeout;
break;
default:
break;
}
if (cm_id_priv->alt_av.ah_attr.dlid) {
*qp_attr_mask |= IB_QP_PATH_MIG_STATE;
qp_attr->path_mig_state = IB_MIG_REARM;
}
} else {
*qp_attr_mask = IB_QP_ALT_PATH | IB_QP_PATH_MIG_STATE;
qp_attr->alt_port_num = cm_id_priv->alt_av.port->port_num;
qp_attr->alt_pkey_index = cm_id_priv->alt_av.pkey_index;
qp_attr->alt_timeout = cm_id_priv->alt_av.timeout;
qp_attr->alt_ah_attr = cm_id_priv->alt_av.ah_attr;
qp_attr->path_mig_state = IB_MIG_REARM;
}
ret = 0;
break;
default:
ret = -EINVAL;
break;
}
spin_unlock_irqrestore(&cm_id_priv->lock, flags);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 145 | 52.92% | 1 | 16.67% |
| sean hefty | sean hefty | 129 | 47.08% | 5 | 83.33% |
| Total | 274 | 100.00% | 6 | 100.00% |
int ib_cm_init_qp_attr(struct ib_cm_id *cm_id,
struct ib_qp_attr *qp_attr,
int *qp_attr_mask)
{
struct cm_id_private *cm_id_priv;
int ret;
cm_id_priv = container_of(cm_id, struct cm_id_private, id);
switch (qp_attr->qp_state) {
case IB_QPS_INIT:
ret = cm_init_qp_init_attr(cm_id_priv, qp_attr, qp_attr_mask);
break;
case IB_QPS_RTR:
ret = cm_init_qp_rtr_attr(cm_id_priv, qp_attr, qp_attr_mask);
break;
case IB_QPS_RTS:
ret = cm_init_qp_rts_attr(cm_id_priv, qp_attr, qp_attr_mask);
break;
default:
ret = -EINVAL;
break;
}
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 102 | 100.00% | 1 | 100.00% |
| Total | 102 | 100.00% | 1 | 100.00% |
EXPORT_SYMBOL(ib_cm_init_qp_attr);
static ssize_t cm_show_counter(struct kobject *obj, struct attribute *attr,
char *buf)
{
struct cm_counter_group *group;
struct cm_counter_attribute *cm_attr;
group = container_of(obj, struct cm_counter_group, obj);
cm_attr = container_of(attr, struct cm_counter_attribute, attr);
return sprintf(buf, "%ld\n",
atomic_long_read(&group->counter[cm_attr->index]));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| sean hefty | sean hefty | 63 | 84.00% | 1 | 50.00% |
| hal rosenstock | hal rosenstock | 12 | 16.00% | 1 | 50.00% |
| Total | 75 | 100.00% | 2 | 100.00% |
static const struct sysfs_ops cm_counter_ops = {
.show = cm_show_counter
};
static struct kobj_type cm_counter_obj_type = {
.sysfs_ops = &cm_counter_ops,
.default_attrs = cm_counter_default_attrs
};
static void cm_release_port_obj(struct kobject *obj)
{
struct cm_port *cm_port;
cm_port = container_of(obj, struct cm_port, port_obj);
kfree(cm_port);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| sean hefty | sean hefty | 26 | 78.79% | 1 | 50.00% |
| hal rosenstock | hal rosenstock | 7 | 21.21% | 1 | 50.00% |
| Total | 33 | 100.00% | 2 | 100.00% |
static struct kobj_type cm_port_obj_type = {
.release = cm_release_port_obj
};
static char *cm_devnode(struct device *dev, umode_t *mode)
{
if (mode)
*mode = 0666;
return kasprintf(GFP_KERNEL, "infiniband/%s", dev_name(dev));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| roland dreier | roland dreier | 33 | 86.84% | 1 | 33.33% |
| goldwyn rodrigues | goldwyn rodrigues | 4 | 10.53% | 1 | 33.33% |
| al viro | al viro | 1 | 2.63% | 1 | 33.33% |
| Total | 38 | 100.00% | 3 | 100.00% |
struct class cm_class = {
.owner = THIS_MODULE,
.name = "infiniband_cm",
.devnode = cm_devnode,
};
EXPORT_SYMBOL(cm_class);
static int cm_create_port_fs(struct cm_port *port)
{
int i, ret;
ret = kobject_init_and_add(&port->port_obj, &cm_port_obj_type,
&port->cm_dev->device->kobj,
"%d", port->port_num);
if (ret) {
kfree(port);
return ret;
}
for (i = 0; i < CM_COUNTER_GROUPS; i++) {
ret = kobject_init_and_add(&port->counter_group[i].obj,
&cm_counter_obj_type,
&port->port_obj,
"%s", counter_group_names[i]);
if (ret)
goto error;
}
return 0;
error:
while (i--)
kobject_put(&port->counter_group[i].obj);
kobject_put(&port->port_obj);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| sean hefty | sean hefty | 139 | 96.53% | 1 | 33.33% |
| greg kroah-hartman | greg kroah-hartman | 3 | 2.08% | 1 | 33.33% |
| roland dreier | roland dreier | 2 | 1.39% | 1 | 33.33% |
| Total | 144 | 100.00% | 3 | 100.00% |
static void cm_remove_port_fs(struct cm_port *port)
{
int i;
for (i = 0; i < CM_COUNTER_GROUPS; i++)
kobject_put(&port->counter_group[i].obj);
kobject_put(&port->port_obj);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| sean hefty | sean hefty | 46 | 95.83% | 1 | 50.00% |
| roland dreier | roland dreier | 2 | 4.17% | 1 | 50.00% |
| Total | 48 | 100.00% | 2 | 100.00% |
static void cm_add_one(struct ib_device *ib_device)
{
struct cm_device *cm_dev;
struct cm_port *port;
struct ib_mad_reg_req reg_req = {
.mgmt_class = IB_MGMT_CLASS_CM,
.mgmt_class_version = IB_CM_CLASS_VERSION,
};
struct ib_port_modify port_modify = {
.set_port_cap_mask = IB_PORT_CM_SUP
};
unsigned long flags;
int ret;
int count = 0;
u8 i;
cm_dev = kzalloc(sizeof(*cm_dev) + sizeof(*port) *
ib_device->phys_port_cnt, GFP_KERNEL);
if (!cm_dev)
return;
cm_dev->ib_device = ib_device;
cm_dev->ack_delay = ib_device->attrs.local_ca_ack_delay;
cm_dev->going_down = 0;
cm_dev->device = device_create(&cm_class, &ib_device->dev,
MKDEV(0, 0), NULL,
"%s", ib_device->name);
if (IS_ERR(cm_dev->device)) {
kfree(cm_dev);
return;
}
set_bit(IB_MGMT_METHOD_SEND, reg_req.method_mask);
for (i = 1; i <= ib_device->phys_port_cnt; i++) {
if (!rdma_cap_ib_cm(ib_device, i))
continue;
port = kzalloc(sizeof *port, GFP_KERNEL);
if (!port)
goto error1;
cm_dev->port[i-1] = port;
port->cm_dev = cm_dev;
port->port_num = i;
ret = cm_create_port_fs(port);
if (ret)
goto error1;
port->mad_agent = ib_register_mad_agent(ib_device, i,
IB_QPT_GSI,
®_req,
0,
cm_send_handler,
cm_recv_handler,
port,
0);
if (IS_ERR(port->mad_agent))
goto error2;
ret = ib_modify_port(ib_device, i, 0, &port_modify);
if (ret)
goto error3;
count++;
}
if (!count)
goto free;
ib_set_client_data(ib_device, &cm_client, cm_dev);
write_lock_irqsave(&cm.device_lock, flags);
list_add_tail(&cm_dev->list, &cm.device_list);
write_unlock_irqrestore(&cm.device_lock, flags);
return;
error3:
ib_unregister_mad_agent(port->mad_agent);
error2:
cm_remove_port_fs(port);
error1:
port_modify.set_port_cap_mask = 0;
port_modify.clr_port_cap_mask = IB_PORT_CM_SUP;
while (--i) {
if (!rdma_cap_ib_cm(ib_device, i))
continue;
port = cm_dev->port[i-1];
ib_modify_port(ib_device, port->port_num, 0, &port_modify);
ib_unregister_mad_agent(port->mad_agent);
cm_remove_port_fs(port);
}
free:
device_unregister(cm_dev->device);
kfree(cm_dev);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| sean hefty | sean hefty | 194 | 41.54% | 3 | 23.08% |
| hal rosenstock | hal rosenstock | 182 | 38.97% | 1 | 7.69% |
| michael wang | michael wang | 40 | 8.57% | 2 | 15.38% |
| greg kroah-hartman | greg kroah-hartman | 31 | 6.64% | 3 | 23.08% |
| or gerlitz | or gerlitz | 8 | 1.71% | 1 | 7.69% |
| erez shitrit | erez shitrit | 6 | 1.28% | 1 | 7.69% |
| ira weiny | ira weiny | 3 | 0.64% | 1 | 7.69% |
| jani nikula | jani nikula | 3 | 0.64% | 1 | 7.69% |
| Total | 467 | 100.00% | 13 | 100.00% |
static void cm_remove_one(struct ib_device *ib_device, void *client_data)
{
struct cm_device *cm_dev = client_data;
struct cm_port *port;
struct ib_port_modify port_modify = {
.clr_port_cap_mask = IB_PORT_CM_SUP
};
unsigned long flags;
int i;
if (!cm_dev)
return;
write_lock_irqsave(&cm.device_lock, flags);
list_del(&cm_dev->list);
write_unlock_irqrestore(&cm.device_lock, flags);
spin_lock_irq(&cm.lock);
cm_dev->going_down = 1;
spin_unlock_irq(&cm.lock);
for (i = 1; i <= ib_device->phys_port_cnt; i++) {
if (!rdma_cap_ib_cm(ib_device, i))
continue;
port = cm_dev->port[i-1];
ib_modify_port(ib_device, port->port_num, 0, &port_modify);
/*
* We flush the queue here after the going_down set, this
* verify that no new works will be queued in the recv handler,
* after that we can call the unregister_mad_agent
*/
flush_workqueue(cm.wq);
ib_unregister_mad_agent(port->mad_agent);
cm_remove_port_fs(port);
}
device_unregister(cm_dev->device);
kfree(cm_dev);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 116 | 62.37% | 1 | 10.00% |
| erez shitrit | erez shitrit | 30 | 16.13% | 1 | 10.00% |
| sean hefty | sean hefty | 18 | 9.68% | 3 | 30.00% |
| michael wang | michael wang | 11 | 5.91% | 2 | 20.00% |
| haggai eran | haggai eran | 6 | 3.23% | 1 | 10.00% |
| greg kroah-hartman | greg kroah-hartman | 5 | 2.69% | 2 | 20.00% |
| Total | 186 | 100.00% | 10 | 100.00% |
static int __init ib_cm_init(void)
{
int ret;
memset(&cm, 0, sizeof cm);
INIT_LIST_HEAD(&cm.device_list);
rwlock_init(&cm.device_lock);
spin_lock_init(&cm.lock);
cm.listen_service_table = RB_ROOT;
cm.listen_service_id = be64_to_cpu(IB_CM_ASSIGN_SERVICE_ID);
cm.remote_id_table = RB_ROOT;
cm.remote_qp_table = RB_ROOT;
cm.remote_sidr_table = RB_ROOT;
idr_init(&cm.local_id_table);
get_random_bytes(&cm.random_id_operand, sizeof cm.random_id_operand);
INIT_LIST_HEAD(&cm.timewait_list);
ret = class_register(&cm_class);
if (ret) {
ret = -ENOMEM;
goto error1;
}
cm.wq = create_workqueue("ib_cm");
if (!cm.wq) {
ret = -ENOMEM;
goto error2;
}
ret = ib_register_client(&cm_client);
if (ret)
goto error3;
return 0;
error3:
destroy_workqueue(cm.wq);
error2:
class_unregister(&cm_class);
error1:
idr_destroy(&cm.local_id_table);
return ret;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 133 | 64.88% | 1 | 16.67% |
| sean hefty | sean hefty | 49 | 23.90% | 3 | 50.00% |
| dotan barak | dotan barak | 22 | 10.73% | 1 | 16.67% |
| harvey harrison | harvey harrison | 1 | 0.49% | 1 | 16.67% |
| Total | 205 | 100.00% | 6 | 100.00% |
static void __exit ib_cm_cleanup(void)
{
struct cm_timewait_info *timewait_info, *tmp;
spin_lock_irq(&cm.lock);
list_for_each_entry(timewait_info, &cm.timewait_list, list)
cancel_delayed_work(&timewait_info->work.work);
spin_unlock_irq(&cm.lock);
ib_unregister_client(&cm_client);
destroy_workqueue(cm.wq);
list_for_each_entry_safe(timewait_info, tmp, &cm.timewait_list, list) {
list_del(&timewait_info->list);
kfree(timewait_info);
}
class_unregister(&cm_class);
idr_destroy(&cm.local_id_table);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| sean hefty | sean hefty | 79 | 76.70% | 3 | 60.00% |
| hal rosenstock | hal rosenstock | 16 | 15.53% | 1 | 20.00% |
| roland dreier | roland dreier | 8 | 7.77% | 1 | 20.00% |
| Total | 103 | 100.00% | 5 | 100.00% |
module_init(ib_cm_init);
module_exit(ib_cm_cleanup);
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| hal rosenstock | hal rosenstock | 15674 | 75.22% | 1 | 1.11% |
| sean hefty | sean hefty | 3616 | 17.35% | 37 | 41.11% |
| haggai eran | haggai eran | 458 | 2.20% | 5 | 5.56% |
| matan barak | matan barak | 246 | 1.18% | 7 | 7.78% |
| roland dreier | roland dreier | 233 | 1.12% | 7 | 7.78% |
| erez shitrit | erez shitrit | 201 | 0.96% | 1 | 1.11% |
| michael s. tsirkin | michael s. tsirkin | 84 | 0.40% | 3 | 3.33% |
| doron tsur | doron tsur | 61 | 0.29% | 1 | 1.11% |
| greg kroah-hartman | greg kroah-hartman | 53 | 0.25% | 3 | 3.33% |
| michael wang | michael wang | 51 | 0.24% | 2 | 2.22% |
| david howells | david howells | 27 | 0.13% | 1 | 1.11% |
| tejun heo | tejun heo | 24 | 0.12% | 3 | 3.33% |
| dotan barak | dotan barak | 22 | 0.11% | 1 | 1.11% |
| harvey harrison | harvey harrison | 19 | 0.09% | 1 | 1.11% |
| john kingman | john kingman | 13 | 0.06% | 1 | 1.11% |
| bart van assche | bart van assche | 12 | 0.06% | 2 | 2.22% |
| or gerlitz | or gerlitz | 8 | 0.04% | 1 | 1.11% |
| ira weiny | ira weiny | 7 | 0.03% | 2 | 2.22% |
| christoph hellwig | christoph hellwig | 5 | 0.02% | 1 | 1.11% |
| goldwyn rodrigues | goldwyn rodrigues | 4 | 0.02% | 1 | 1.11% |
| jani nikula | jani nikula | 3 | 0.01% | 1 | 1.11% |
| eric sesterhenn | eric sesterhenn | 3 | 0.01% | 1 | 1.11% |
| al viro | al viro | 3 | 0.01% | 2 | 2.22% |
| paul gortmaker | paul gortmaker | 3 | 0.01% | 1 | 1.11% |
| ted kim | ted kim | 3 | 0.01% | 1 | 1.11% |
| zhao hongjiang | zhao hongjiang | 2 | 0.01% | 1 | 1.11% |
| emese revfy | emese revfy | 1 | 0.00% | 1 | 1.11% |
| parag warudkar | parag warudkar | 1 | 0.00% | 1 | 1.11% |
| Total | 20837 | 100.00% | 90 | 100.00% |
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