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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

Browse source 
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  RDMA/cma: Save PID of ID's owner
  RDMA/cma: Add support for netlink statistics export
  RDMA/cma: Pass QP type into rdma_create_id()
  RDMA: Update exported headers list
  RDMA/cma: Export enum cma_state in <rdma/rdma_cm.h>
  RDMA/nes: Add a check for strict_strtoul()
  RDMA/cxgb3: Don't post zero-byte read if endpoint is going away
  RDMA/cxgb4: Use completion objects for event blocking
  IB/srp: Fix integer -> pointer cast warnings
  IB: Add devnode methods to cm_class and umad_class
  IB/mad: Return EPROTONOSUPPORT when an RDMA device lacks the QP required
  IB/uverbs: Add devnode method to set path/mode
  RDMA/ucma: Add .nodename/.mode to tell userspace where to create device node
  RDMA: Add netlink infrastructure
  RDMA: Add error handling to ib_core_init()
This commit is contained in:
Linus Torvalds 2011-05-26 12:13:57 -07:00
commit 4c171acc20
31 changed files with 633 additions and 159 deletions
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1
drivers/infiniband/Kconfig
View file

@ -2,6 +2,7 @@ menuconfig INFINIBAND
tristate "InfiniBand support"
depends on PCI || BROKEN
depends on HAS_IOMEM
depends on NET
---help---
Core support for InfiniBand (IB). Make sure to also select
any protocols you wish to use as well as drivers for your

2
drivers/infiniband/core/Makefile
View file

@ -8,7 +8,7 @@ obj-$(CONFIG_INFINIBAND_USER_ACCESS) += ib_uverbs.o ib_ucm.o \
$(user_access-y)
ib_core-y := packer.o ud_header.o verbs.o sysfs.o \
device.o fmr_pool.o cache.o
device.o fmr_pool.o cache.o netlink.o
ib_core-$(CONFIG_INFINIBAND_USER_MEM) += umem.o
ib_mad-y := mad.o smi.o agent.o mad_rmpp.o

8
drivers/infiniband/core/cm.c
View file

@ -3639,8 +3639,16 @@ static struct kobj_type cm_port_obj_type = {
.release = cm_release_port_obj
};
static char *cm_devnode(struct device *dev, mode_t *mode)
{
*mode = 0666;
return kasprintf(GFP_KERNEL, "infiniband/%s", dev_name(dev));
}
struct class cm_class = {
.owner = THIS_MODULE,
.name = "infiniband_cm",
.devnode = cm_devnode,
};
EXPORT_SYMBOL(cm_class);

308
drivers/infiniband/core/cma.c
View file

@ -47,6 +47,7 @@
#include <rdma/rdma_cm.h>
#include <rdma/rdma_cm_ib.h>
#include <rdma/rdma_netlink.h>
#include <rdma/ib_cache.h>
#include <rdma/ib_cm.h>
#include <rdma/ib_sa.h>
@ -89,20 +90,6 @@ struct cma_device {
struct list_head id_list;
};
enum cma_state {
CMA_IDLE,
CMA_ADDR_QUERY,
CMA_ADDR_RESOLVED,
CMA_ROUTE_QUERY,
CMA_ROUTE_RESOLVED,
CMA_CONNECT,
CMA_DISCONNECT,
CMA_ADDR_BOUND,
CMA_LISTEN,
CMA_DEVICE_REMOVAL,
CMA_DESTROYING
};
struct rdma_bind_list {
struct idr *ps;
struct hlist_head owners;
@ -126,7 +113,7 @@ struct rdma_id_private {
struct list_head mc_list;
int internal_id;
enum cma_state state;
enum rdma_cm_state state;
spinlock_t lock;
struct mutex qp_mutex;
@ -146,6 +133,7 @@ struct rdma_id_private {
u32 seq_num;
u32 qkey;
u32 qp_num;
pid_t owner;
u8 srq;
u8 tos;
u8 reuseaddr;
@ -165,8 +153,8 @@ struct cma_multicast {
struct cma_work {
struct work_struct work;
struct rdma_id_private *id;
enum cma_state old_state;
enum cma_state new_state;
enum rdma_cm_state old_state;
enum rdma_cm_state new_state;
struct rdma_cm_event event;
};
@ -217,7 +205,7 @@ struct sdp_hah {
#define CMA_VERSION 0x00
#define SDP_MAJ_VERSION 0x2
static int cma_comp(struct rdma_id_private *id_priv, enum cma_state comp)
static int cma_comp(struct rdma_id_private *id_priv, enum rdma_cm_state comp)
{
unsigned long flags;
int ret;
@ -229,7 +217,7 @@ static int cma_comp(struct rdma_id_private *id_priv, enum cma_state comp)
}
static int cma_comp_exch(struct rdma_id_private *id_priv,
enum cma_state comp, enum cma_state exch)
enum rdma_cm_state comp, enum rdma_cm_state exch)
{
unsigned long flags;
int ret;
@ -241,11 +229,11 @@ static int cma_comp_exch(struct rdma_id_private *id_priv,
return ret;
}
static enum cma_state cma_exch(struct rdma_id_private *id_priv,
enum cma_state exch)
static enum rdma_cm_state cma_exch(struct rdma_id_private *id_priv,
enum rdma_cm_state exch)
{
unsigned long flags;
enum cma_state old;
enum rdma_cm_state old;
spin_lock_irqsave(&id_priv->lock, flags);
old = id_priv->state;
@ -279,11 +267,6 @@ static inline void sdp_set_ip_ver(struct sdp_hh *hh, u8 ip_ver)
hh->ip_version = (ip_ver << 4) | (hh->ip_version & 0xF);
}
static inline int cma_is_ud_ps(enum rdma_port_space ps)
{
return (ps == RDMA_PS_UDP || ps == RDMA_PS_IPOIB);
}
static void cma_attach_to_dev(struct rdma_id_private *id_priv,
struct cma_device *cma_dev)
{
@ -413,7 +396,7 @@ static void cma_deref_id(struct rdma_id_private *id_priv)
}
static int cma_disable_callback(struct rdma_id_private *id_priv,
enum cma_state state)
enum rdma_cm_state state)
{
mutex_lock(&id_priv->handler_mutex);
if (id_priv->state != state) {
@ -429,7 +412,8 @@ static int cma_has_cm_dev(struct rdma_id_private *id_priv)
}
struct rdma_cm_id *rdma_create_id(rdma_cm_event_handler event_handler,
void *context, enum rdma_port_space ps)
void *context, enum rdma_port_space ps,
enum ib_qp_type qp_type)
{
struct rdma_id_private *id_priv;
@ -437,10 +421,12 @@ struct rdma_cm_id *rdma_create_id(rdma_cm_event_handler event_handler,
if (!id_priv)
return ERR_PTR(-ENOMEM);
id_priv->state = CMA_IDLE;
id_priv->owner = task_pid_nr(current);
id_priv->state = RDMA_CM_IDLE;
id_priv->id.context = context;
id_priv->id.event_handler = event_handler;
id_priv->id.ps = ps;
id_priv->id.qp_type = qp_type;
spin_lock_init(&id_priv->lock);
mutex_init(&id_priv->qp_mutex);
init_completion(&id_priv->comp);
@ -508,7 +494,7 @@ int rdma_create_qp(struct rdma_cm_id *id, struct ib_pd *pd,
if (IS_ERR(qp))
return PTR_ERR(qp);
if (cma_is_ud_ps(id_priv->id.ps))
if (id->qp_type == IB_QPT_UD)
ret = cma_init_ud_qp(id_priv, qp);
else
ret = cma_init_conn_qp(id_priv, qp);
@ -636,7 +622,7 @@ static int cma_ib_init_qp_attr(struct rdma_id_private *id_priv,
qp_attr->port_num = id_priv->id.port_num;
*qp_attr_mask = IB_QP_STATE | IB_QP_PKEY_INDEX | IB_QP_PORT;
if (cma_is_ud_ps(id_priv->id.ps)) {
if (id_priv->id.qp_type == IB_QPT_UD) {
ret = cma_set_qkey(id_priv);
if (ret)
return ret;
@ -659,7 +645,7 @@ int rdma_init_qp_attr(struct rdma_cm_id *id, struct ib_qp_attr *qp_attr,
id_priv = container_of(id, struct rdma_id_private, id);
switch (rdma_node_get_transport(id_priv->id.device->node_type)) {
case RDMA_TRANSPORT_IB:
if (!id_priv->cm_id.ib || cma_is_ud_ps(id_priv->id.ps))
if (!id_priv->cm_id.ib || (id_priv->id.qp_type == IB_QPT_UD))
ret = cma_ib_init_qp_attr(id_priv, qp_attr, qp_attr_mask);
else
ret = ib_cm_init_qp_attr(id_priv->cm_id.ib, qp_attr,
@ -858,16 +844,16 @@ static void cma_cancel_listens(struct rdma_id_private *id_priv)
}
static void cma_cancel_operation(struct rdma_id_private *id_priv,
enum cma_state state)
enum rdma_cm_state state)
{
switch (state) {
case CMA_ADDR_QUERY:
case RDMA_CM_ADDR_QUERY:
rdma_addr_cancel(&id_priv->id.route.addr.dev_addr);
break;
case CMA_ROUTE_QUERY:
case RDMA_CM_ROUTE_QUERY:
cma_cancel_route(id_priv);
break;
case CMA_LISTEN:
case RDMA_CM_LISTEN:
if (cma_any_addr((struct sockaddr *) &id_priv->id.route.addr.src_addr)
&& !id_priv->cma_dev)
cma_cancel_listens(id_priv);
@ -918,10 +904,10 @@ static void cma_leave_mc_groups(struct rdma_id_private *id_priv)
void rdma_destroy_id(struct rdma_cm_id *id)
{
struct rdma_id_private *id_priv;
enum cma_state state;
enum rdma_cm_state state;
id_priv = container_of(id, struct rdma_id_private, id);
state = cma_exch(id_priv, CMA_DESTROYING);
state = cma_exch(id_priv, RDMA_CM_DESTROYING);
cma_cancel_operation(id_priv, state);
/*
@ -1015,9 +1001,9 @@ static int cma_ib_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
int ret = 0;
if ((ib_event->event != IB_CM_TIMEWAIT_EXIT &&
cma_disable_callback(id_priv, CMA_CONNECT)) ||
cma_disable_callback(id_priv, RDMA_CM_CONNECT)) ||
(ib_event->event == IB_CM_TIMEWAIT_EXIT &&
cma_disable_callback(id_priv, CMA_DISCONNECT)))
cma_disable_callback(id_priv, RDMA_CM_DISCONNECT)))
return 0;
memset(&event, 0, sizeof event);
@ -1048,7 +1034,8 @@ static int cma_ib_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
event.status = -ETIMEDOUT; /* fall through */
case IB_CM_DREQ_RECEIVED:
case IB_CM_DREP_RECEIVED:
if (!cma_comp_exch(id_priv, CMA_CONNECT, CMA_DISCONNECT))
if (!cma_comp_exch(id_priv, RDMA_CM_CONNECT,
RDMA_CM_DISCONNECT))
goto out;
event.event = RDMA_CM_EVENT_DISCONNECTED;
break;
@ -1075,7 +1062,7 @@ static int cma_ib_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
if (ret) {
/* Destroy the CM ID by returning a non-zero value. */
id_priv->cm_id.ib = NULL;
cma_exch(id_priv, CMA_DESTROYING);
cma_exch(id_priv, RDMA_CM_DESTROYING);
mutex_unlock(&id_priv->handler_mutex);
rdma_destroy_id(&id_priv->id);
return ret;
@ -1101,7 +1088,7 @@ static struct rdma_id_private *cma_new_conn_id(struct rdma_cm_id *listen_id,
goto err;
id = rdma_create_id(listen_id->event_handler, listen_id->context,
listen_id->ps);
listen_id->ps, ib_event->param.req_rcvd.qp_type);
if (IS_ERR(id))
goto err;
@ -1132,7 +1119,7 @@ static struct rdma_id_private *cma_new_conn_id(struct rdma_cm_id *listen_id,
rdma_addr_set_dgid(&rt->addr.dev_addr, &rt->path_rec[0].dgid);
id_priv = container_of(id, struct rdma_id_private, id);
id_priv->state = CMA_CONNECT;
id_priv->state = RDMA_CM_CONNECT;
return id_priv;
destroy_id:
@ -1152,7 +1139,7 @@ static struct rdma_id_private *cma_new_udp_id(struct rdma_cm_id *listen_id,
int ret;
id = rdma_create_id(listen_id->event_handler, listen_id->context,
listen_id->ps);
listen_id->ps, IB_QPT_UD);
if (IS_ERR(id))
return NULL;
@ -1172,7 +1159,7 @@ static struct rdma_id_private *cma_new_udp_id(struct rdma_cm_id *listen_id,
}
id_priv = container_of(id, struct rdma_id_private, id);
id_priv->state = CMA_CONNECT;
id_priv->state = RDMA_CM_CONNECT;
return id_priv;
err:
rdma_destroy_id(id);
@ -1201,13 +1188,13 @@ static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
int offset, ret;
listen_id = cm_id->context;
if (cma_disable_callback(listen_id, CMA_LISTEN))
if (cma_disable_callback(listen_id, RDMA_CM_LISTEN))
return -ECONNABORTED;
memset(&event, 0, sizeof event);
offset = cma_user_data_offset(listen_id->id.ps);
event.event = RDMA_CM_EVENT_CONNECT_REQUEST;
if (cma_is_ud_ps(listen_id->id.ps)) {
if (listen_id->id.qp_type == IB_QPT_UD) {
conn_id = cma_new_udp_id(&listen_id->id, ib_event);
event.param.ud.private_data = ib_event->private_data + offset;
event.param.ud.private_data_len =
@ -1243,8 +1230,7 @@ static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
* while we're accessing the cm_id.
*/
mutex_lock(&lock);
if (cma_comp(conn_id, CMA_CONNECT) &&
!cma_is_ud_ps(conn_id->id.ps))
if (cma_comp(conn_id, RDMA_CM_CONNECT) && (conn_id->id.qp_type != IB_QPT_UD))
ib_send_cm_mra(cm_id, CMA_CM_MRA_SETTING, NULL, 0);
mutex_unlock(&lock);
mutex_unlock(&conn_id->handler_mutex);
@ -1257,7 +1243,7 @@ static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
conn_id->cm_id.ib = NULL;
release_conn_id:
cma_exch(conn_id, CMA_DESTROYING);
cma_exch(conn_id, RDMA_CM_DESTROYING);
mutex_unlock(&conn_id->handler_mutex);
rdma_destroy_id(&conn_id->id);
@ -1328,7 +1314,7 @@ static int cma_iw_handler(struct iw_cm_id *iw_id, struct iw_cm_event *iw_event)
struct sockaddr_in *sin;
int ret = 0;
if (cma_disable_callback(id_priv, CMA_CONNECT))
if (cma_disable_callback(id_priv, RDMA_CM_CONNECT))
return 0;
memset(&event, 0, sizeof event);
@ -1371,7 +1357,7 @@ static int cma_iw_handler(struct iw_cm_id *iw_id, struct iw_cm_event *iw_event)
if (ret) {
/* Destroy the CM ID by returning a non-zero value. */
id_priv->cm_id.iw = NULL;
cma_exch(id_priv, CMA_DESTROYING);
cma_exch(id_priv, RDMA_CM_DESTROYING);
mutex_unlock(&id_priv->handler_mutex);
rdma_destroy_id(&id_priv->id);
return ret;
@ -1393,20 +1379,20 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id,
struct ib_device_attr attr;
listen_id = cm_id->context;
if (cma_disable_callback(listen_id, CMA_LISTEN))
if (cma_disable_callback(listen_id, RDMA_CM_LISTEN))
return -ECONNABORTED;
/* Create a new RDMA id for the new IW CM ID */
new_cm_id = rdma_create_id(listen_id->id.event_handler,
listen_id->id.context,
RDMA_PS_TCP);
RDMA_PS_TCP, IB_QPT_RC);
if (IS_ERR(new_cm_id)) {
ret = -ENOMEM;
goto out;
}
conn_id = container_of(new_cm_id, struct rdma_id_private, id);
mutex_lock_nested(&conn_id->handler_mutex, SINGLE_DEPTH_NESTING);
conn_id->state = CMA_CONNECT;
conn_id->state = RDMA_CM_CONNECT;
dev = ip_dev_find(&init_net, iw_event->local_addr.sin_addr.s_addr);
if (!dev) {
@ -1461,7 +1447,7 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id,
if (ret) {
/* User wants to destroy the CM ID */
conn_id->cm_id.iw = NULL;
cma_exch(conn_id, CMA_DESTROYING);
cma_exch(conn_id, RDMA_CM_DESTROYING);
mutex_unlock(&conn_id->handler_mutex);
cma_deref_id(conn_id);
rdma_destroy_id(&conn_id->id);
@ -1548,13 +1534,14 @@ static void cma_listen_on_dev(struct rdma_id_private *id_priv,
struct rdma_cm_id *id;
int ret;
id = rdma_create_id(cma_listen_handler, id_priv, id_priv->id.ps);
id = rdma_create_id(cma_listen_handler, id_priv, id_priv->id.ps,
id_priv->id.qp_type);
if (IS_ERR(id))
return;
dev_id_priv = container_of(id, struct rdma_id_private, id);
dev_id_priv->state = CMA_ADDR_BOUND;
dev_id_priv->state = RDMA_CM_ADDR_BOUND;
memcpy(&id->route.addr.src_addr, &id_priv->id.route.addr.src_addr,
ip_addr_size((struct sockaddr *) &id_priv->id.route.addr.src_addr));
@ -1601,8 +1588,8 @@ static void cma_query_handler(int status, struct ib_sa_path_rec *path_rec,
route->num_paths = 1;
*route->path_rec = *path_rec;
} else {
work->old_state = CMA_ROUTE_QUERY;
work->new_state = CMA_ADDR_RESOLVED;
work->old_state = RDMA_CM_ROUTE_QUERY;
work->new_state = RDMA_CM_ADDR_RESOLVED;
work->event.event = RDMA_CM_EVENT_ROUTE_ERROR;
work->event.status = status;
}
@ -1660,7 +1647,7 @@ static void cma_work_handler(struct work_struct *_work)
goto out;
if (id_priv->id.event_handler(&id_priv->id, &work->event)) {
cma_exch(id_priv, CMA_DESTROYING);
cma_exch(id_priv, RDMA_CM_DESTROYING);
destroy = 1;
}
out:
@ -1678,12 +1665,12 @@ static void cma_ndev_work_handler(struct work_struct *_work)
int destroy = 0;
mutex_lock(&id_priv->handler_mutex);
if (id_priv->state == CMA_DESTROYING ||
id_priv->state == CMA_DEVICE_REMOVAL)
if (id_priv->state == RDMA_CM_DESTROYING ||
id_priv->state == RDMA_CM_DEVICE_REMOVAL)
goto out;
if (id_priv->id.event_handler(&id_priv->id, &work->event)) {
cma_exch(id_priv, CMA_DESTROYING);
cma_exch(id_priv, RDMA_CM_DESTROYING);
destroy = 1;
}
@ -1707,8 +1694,8 @@ static int cma_resolve_ib_route(struct rdma_id_private *id_priv, int timeout_ms)
work->id = id_priv;
INIT_WORK(&work->work, cma_work_handler);
work->old_state = CMA_ROUTE_QUERY;
work->new_state = CMA_ROUTE_RESOLVED;
work->old_state = RDMA_CM_ROUTE_QUERY;
work->new_state = RDMA_CM_ROUTE_RESOLVED;
work->event.event = RDMA_CM_EVENT_ROUTE_RESOLVED;
route->path_rec = kmalloc(sizeof *route->path_rec, GFP_KERNEL);
@ -1737,7 +1724,8 @@ int rdma_set_ib_paths(struct rdma_cm_id *id,
int ret;
id_priv = container_of(id, struct rdma_id_private, id);
if (!cma_comp_exch(id_priv, CMA_ADDR_RESOLVED, CMA_ROUTE_RESOLVED))
if (!cma_comp_exch(id_priv, RDMA_CM_ADDR_RESOLVED,
RDMA_CM_ROUTE_RESOLVED))
return -EINVAL;
id->route.path_rec = kmemdup(path_rec, sizeof *path_rec * num_paths,
@ -1750,7 +1738,7 @@ int rdma_set_ib_paths(struct rdma_cm_id *id,
id->route.num_paths = num_paths;
return 0;
err:
cma_comp_exch(id_priv, CMA_ROUTE_RESOLVED, CMA_ADDR_RESOLVED);
cma_comp_exch(id_priv, RDMA_CM_ROUTE_RESOLVED, RDMA_CM_ADDR_RESOLVED);
return ret;
}
EXPORT_SYMBOL(rdma_set_ib_paths);
@ -1765,8 +1753,8 @@ static int cma_resolve_iw_route(struct rdma_id_private *id_priv, int timeout_ms)
work->id = id_priv;
INIT_WORK(&work->work, cma_work_handler);
work->old_state = CMA_ROUTE_QUERY;
work->new_state = CMA_ROUTE_RESOLVED;
work->old_state = RDMA_CM_ROUTE_QUERY;
work->new_state = RDMA_CM_ROUTE_RESOLVED;
work->event.event = RDMA_CM_EVENT_ROUTE_RESOLVED;
queue_work(cma_wq, &work->work);
return 0;
@ -1830,8 +1818,8 @@ static int cma_resolve_iboe_route(struct rdma_id_private *id_priv)
goto err2;
}
work->old_state = CMA_ROUTE_QUERY;
work->new_state = CMA_ROUTE_RESOLVED;
work->old_state = RDMA_CM_ROUTE_QUERY;
work->new_state = RDMA_CM_ROUTE_RESOLVED;
work->event.event = RDMA_CM_EVENT_ROUTE_RESOLVED;
work->event.status = 0;
@ -1853,7 +1841,7 @@ int rdma_resolve_route(struct rdma_cm_id *id, int timeout_ms)
int ret;
id_priv = container_of(id, struct rdma_id_private, id);
if (!cma_comp_exch(id_priv, CMA_ADDR_RESOLVED, CMA_ROUTE_QUERY))
if (!cma_comp_exch(id_priv, RDMA_CM_ADDR_RESOLVED, RDMA_CM_ROUTE_QUERY))
return -EINVAL;
atomic_inc(&id_priv->refcount);
@ -1882,7 +1870,7 @@ int rdma_resolve_route(struct rdma_cm_id *id, int timeout_ms)
return 0;
err:
cma_comp_exch(id_priv, CMA_ROUTE_QUERY, CMA_ADDR_RESOLVED);
cma_comp_exch(id_priv, RDMA_CM_ROUTE_QUERY, RDMA_CM_ADDR_RESOLVED);
cma_deref_id(id_priv);
return ret;
}
@ -1941,14 +1929,16 @@ static void addr_handler(int status, struct sockaddr *src_addr,
memset(&event, 0, sizeof event);
mutex_lock(&id_priv->handler_mutex);
if (!cma_comp_exch(id_priv, CMA_ADDR_QUERY, CMA_ADDR_RESOLVED))
if (!cma_comp_exch(id_priv, RDMA_CM_ADDR_QUERY,
RDMA_CM_ADDR_RESOLVED))
goto out;
if (!status && !id_priv->cma_dev)
status = cma_acquire_dev(id_priv);
if (status) {
if (!cma_comp_exch(id_priv, CMA_ADDR_RESOLVED, CMA_ADDR_BOUND))
if (!cma_comp_exch(id_priv, RDMA_CM_ADDR_RESOLVED,
RDMA_CM_ADDR_BOUND))
goto out;
event.event = RDMA_CM_EVENT_ADDR_ERROR;
event.status = status;
@ -1959,7 +1949,7 @@ static void addr_handler(int status, struct sockaddr *src_addr,
}
if (id_priv->id.event_handler(&id_priv->id, &event)) {
cma_exch(id_priv, CMA_DESTROYING);
cma_exch(id_priv, RDMA_CM_DESTROYING);
mutex_unlock(&id_priv->handler_mutex);
cma_deref_id(id_priv);
rdma_destroy_id(&id_priv->id);
@ -2004,8 +1994,8 @@ static int cma_resolve_loopback(struct rdma_id_private *id_priv)
work->id = id_priv;
INIT_WORK(&work->work, cma_work_handler);
work->old_state = CMA_ADDR_QUERY;
work->new_state = CMA_ADDR_RESOLVED;
work->old_state = RDMA_CM_ADDR_QUERY;
work->new_state = RDMA_CM_ADDR_RESOLVED;
work->event.event = RDMA_CM_EVENT_ADDR_RESOLVED;
queue_work(cma_wq, &work->work);
return 0;
@ -2034,13 +2024,13 @@ int rdma_resolve_addr(struct rdma_cm_id *id, struct sockaddr *src_addr,
int ret;
id_priv = container_of(id, struct rdma_id_private, id);
if (id_priv->state == CMA_IDLE) {
if (id_priv->state == RDMA_CM_IDLE) {
ret = cma_bind_addr(id, src_addr, dst_addr);
if (ret)
return ret;
}
if (!cma_comp_exch(id_priv, CMA_ADDR_BOUND, CMA_ADDR_QUERY))
if (!cma_comp_exch(id_priv, RDMA_CM_ADDR_BOUND, RDMA_CM_ADDR_QUERY))
return -EINVAL;
atomic_inc(&id_priv->refcount);
@ -2056,7 +2046,7 @@ int rdma_resolve_addr(struct rdma_cm_id *id, struct sockaddr *src_addr,
return 0;
err:
cma_comp_exch(id_priv, CMA_ADDR_QUERY, CMA_ADDR_BOUND);
cma_comp_exch(id_priv, RDMA_CM_ADDR_QUERY, RDMA_CM_ADDR_BOUND);
cma_deref_id(id_priv);
return ret;
}
@ -2070,7 +2060,7 @@ int rdma_set_reuseaddr(struct rdma_cm_id *id, int reuse)
id_priv = container_of(id, struct rdma_id_private, id);
spin_lock_irqsave(&id_priv->lock, flags);
if (id_priv->state == CMA_IDLE) {
if (id_priv->state == RDMA_CM_IDLE) {
id_priv->reuseaddr = reuse;
ret = 0;
} else {
@ -2177,7 +2167,7 @@ static int cma_check_port(struct rdma_bind_list *bind_list,
if (id_priv == cur_id)
continue;
if ((cur_id->state == CMA_LISTEN) ||
if ((cur_id->state == RDMA_CM_LISTEN) ||
!reuseaddr || !cur_id->reuseaddr) {
cur_addr = (struct sockaddr *) &cur_id->id.route.addr.src_addr;
if (cma_any_addr(cur_addr))
@ -2280,14 +2270,14 @@ int rdma_listen(struct rdma_cm_id *id, int backlog)
int ret;
id_priv = container_of(id, struct rdma_id_private, id);
if (id_priv->state == CMA_IDLE) {
if (id_priv->state == RDMA_CM_IDLE) {
((struct sockaddr *) &id->route.addr.src_addr)->sa_family = AF_INET;
ret = rdma_bind_addr(id, (struct sockaddr *) &id->route.addr.src_addr);
if (ret)
return ret;
}
if (!cma_comp_exch(id_priv, CMA_ADDR_BOUND, CMA_LISTEN))
if (!cma_comp_exch(id_priv, RDMA_CM_ADDR_BOUND, RDMA_CM_LISTEN))
return -EINVAL;
if (id_priv->reuseaddr) {
@ -2319,7 +2309,7 @@ int rdma_listen(struct rdma_cm_id *id, int backlog)
return 0;
err:
id_priv->backlog = 0;
cma_comp_exch(id_priv, CMA_LISTEN, CMA_ADDR_BOUND);
cma_comp_exch(id_priv, RDMA_CM_LISTEN, RDMA_CM_ADDR_BOUND);
return ret;
}
EXPORT_SYMBOL(rdma_listen);
@ -2333,7 +2323,7 @@ int rdma_bind_addr(struct rdma_cm_id *id, struct sockaddr *addr)
return -EAFNOSUPPORT;
id_priv = container_of(id, struct rdma_id_private, id);
if (!cma_comp_exch(id_priv, CMA_IDLE, CMA_ADDR_BOUND))
if (!cma_comp_exch(id_priv, RDMA_CM_IDLE, RDMA_CM_ADDR_BOUND))
return -EINVAL;
ret = cma_check_linklocal(&id->route.addr.dev_addr, addr);
@ -2360,7 +2350,7 @@ int rdma_bind_addr(struct rdma_cm_id *id, struct sockaddr *addr)
if (id_priv->cma_dev)
cma_release_dev(id_priv);
err1:
cma_comp_exch(id_priv, CMA_ADDR_BOUND, CMA_IDLE);
cma_comp_exch(id_priv, RDMA_CM_ADDR_BOUND, RDMA_CM_IDLE);
return ret;
}
EXPORT_SYMBOL(rdma_bind_addr);
@ -2433,7 +2423,7 @@ static int cma_sidr_rep_handler(struct ib_cm_id *cm_id,
struct ib_cm_sidr_rep_event_param *rep = &ib_event->param.sidr_rep_rcvd;
int ret = 0;
if (cma_disable_callback(id_priv, CMA_CONNECT))
if (cma_disable_callback(id_priv, RDMA_CM_CONNECT))
return 0;
memset(&event, 0, sizeof event);
@ -2479,7 +2469,7 @@ static int cma_sidr_rep_handler(struct ib_cm_id *cm_id,
if (ret) {
/* Destroy the CM ID by returning a non-zero value. */
id_priv->cm_id.ib = NULL;
cma_exch(id_priv, CMA_DESTROYING);
cma_exch(id_priv, RDMA_CM_DESTROYING);
mutex_unlock(&id_priv->handler_mutex);
rdma_destroy_id(&id_priv->id);
return ret;
@ -2645,7 +2635,7 @@ int rdma_connect(struct rdma_cm_id *id, struct rdma_conn_param *conn_param)
int ret;
id_priv = container_of(id, struct rdma_id_private, id);
if (!cma_comp_exch(id_priv, CMA_ROUTE_RESOLVED, CMA_CONNECT))
if (!cma_comp_exch(id_priv, RDMA_CM_ROUTE_RESOLVED, RDMA_CM_CONNECT))
return -EINVAL;
if (!id->qp) {
@ -2655,7 +2645,7 @@ int rdma_connect(struct rdma_cm_id *id, struct rdma_conn_param *conn_param)
switch (rdma_node_get_transport(id->device->node_type)) {
case RDMA_TRANSPORT_IB:
if (cma_is_ud_ps(id->ps))
if (id->qp_type == IB_QPT_UD)
ret = cma_resolve_ib_udp(id_priv, conn_param);
else
ret = cma_connect_ib(id_priv, conn_param);
@ -2672,7 +2662,7 @@ int rdma_connect(struct rdma_cm_id *id, struct rdma_conn_param *conn_param)
return 0;
err:
cma_comp_exch(id_priv, CMA_CONNECT, CMA_ROUTE_RESOLVED);
cma_comp_exch(id_priv, RDMA_CM_CONNECT, RDMA_CM_ROUTE_RESOLVED);
return ret;
}
EXPORT_SYMBOL(rdma_connect);
@ -2758,7 +2748,10 @@ int rdma_accept(struct rdma_cm_id *id, struct rdma_conn_param *conn_param)
int ret;
id_priv = container_of(id, struct rdma_id_private, id);
if (!cma_comp(id_priv, CMA_CONNECT))
id_priv->owner = task_pid_nr(current);
if (!cma_comp(id_priv, RDMA_CM_CONNECT))
return -EINVAL;
if (!id->qp && conn_param) {
@ -2768,7 +2761,7 @@ int rdma_accept(struct rdma_cm_id *id, struct rdma_conn_param *conn_param)
switch (rdma_node_get_transport(id->device->node_type)) {
case RDMA_TRANSPORT_IB:
if (cma_is_ud_ps(id->ps))
if (id->qp_type == IB_QPT_UD)
ret = cma_send_sidr_rep(id_priv, IB_SIDR_SUCCESS,
conn_param->private_data,
conn_param->private_data_len);
@ -2829,7 +2822,7 @@ int rdma_reject(struct rdma_cm_id *id, const void *private_data,
switch (rdma_node_get_transport(id->device->node_type)) {
case RDMA_TRANSPORT_IB:
if (cma_is_ud_ps(id->ps))
if (id->qp_type == IB_QPT_UD)
ret = cma_send_sidr_rep(id_priv, IB_SIDR_REJECT,
private_data, private_data_len);
else
@ -2887,8 +2880,8 @@ static int cma_ib_mc_handler(int status, struct ib_sa_multicast *multicast)
int ret;
id_priv = mc->id_priv;
if (cma_disable_callback(id_priv, CMA_ADDR_BOUND) &&
cma_disable_callback(id_priv, CMA_ADDR_RESOLVED))
if (cma_disable_callback(id_priv, RDMA_CM_ADDR_BOUND) &&
cma_disable_callback(id_priv, RDMA_CM_ADDR_RESOLVED))
return 0;
mutex_lock(&id_priv->qp_mutex);
@ -2912,7 +2905,7 @@ static int cma_ib_mc_handler(int status, struct ib_sa_multicast *multicast)
ret = id_priv->id.event_handler(&id_priv->id, &event);
if (ret) {
cma_exch(id_priv, CMA_DESTROYING);
cma_exch(id_priv, RDMA_CM_DESTROYING);
mutex_unlock(&id_priv->handler_mutex);
rdma_destroy_id(&id_priv->id);
return 0;
@ -3095,8 +3088,8 @@ int rdma_join_multicast(struct rdma_cm_id *id, struct sockaddr *addr,
int ret;
id_priv = container_of(id, struct rdma_id_private, id);
if (!cma_comp(id_priv, CMA_ADDR_BOUND) &&
!cma_comp(id_priv, CMA_ADDR_RESOLVED))
if (!cma_comp(id_priv, RDMA_CM_ADDR_BOUND) &&
!cma_comp(id_priv, RDMA_CM_ADDR_RESOLVED))
return -EINVAL;
mc = kmalloc(sizeof *mc, GFP_KERNEL);
@ -3261,19 +3254,19 @@ static void cma_add_one(struct ib_device *device)
static int cma_remove_id_dev(struct rdma_id_private *id_priv)
{
struct rdma_cm_event event;
enum cma_state state;
enum rdma_cm_state state;
int ret = 0;
/* Record that we want to remove the device */
state = cma_exch(id_priv, CMA_DEVICE_REMOVAL);
if (state == CMA_DESTROYING)
state = cma_exch(id_priv, RDMA_CM_DEVICE_REMOVAL);
if (state == RDMA_CM_DESTROYING)
return 0;
cma_cancel_operation(id_priv, state);
mutex_lock(&id_priv->handler_mutex);
/* Check for destruction from another callback. */
if (!cma_comp(id_priv, CMA_DEVICE_REMOVAL))
if (!cma_comp(id_priv, RDMA_CM_DEVICE_REMOVAL))
goto out;
memset(&event, 0, sizeof event);
@ -3328,6 +3321,100 @@ static void cma_remove_one(struct ib_device *device)
kfree(cma_dev);
}
static int cma_get_id_stats(struct sk_buff *skb, struct netlink_callback *cb)
{
struct nlmsghdr *nlh;
struct rdma_cm_id_stats *id_stats;
struct rdma_id_private *id_priv;
struct rdma_cm_id *id = NULL;
struct cma_device *cma_dev;
int i_dev = 0, i_id = 0;
/*
* We export all of the IDs as a sequence of messages. Each
* ID gets its own netlink message.
*/
mutex_lock(&lock);
list_for_each_entry(cma_dev, &dev_list, list) {
if (i_dev < cb->args[0]) {
i_dev++;
continue;
}
i_id = 0;
list_for_each_entry(id_priv, &cma_dev->id_list, list) {
if (i_id < cb->args[1]) {
i_id++;
continue;
}
id_stats = ibnl_put_msg(skb, &nlh, cb->nlh->nlmsg_seq,
sizeof *id_stats, RDMA_NL_RDMA_CM,
RDMA_NL_RDMA_CM_ID_STATS);
if (!id_stats)
goto out;
memset(id_stats, 0, sizeof *id_stats);
id = &id_priv->id;
id_stats->node_type = id->route.addr.dev_addr.dev_type;
id_stats->port_num = id->port_num;
id_stats->bound_dev_if =
id->route.addr.dev_addr.bound_dev_if;
if (id->route.addr.src_addr.ss_family == AF_INET) {
if (ibnl_put_attr(skb, nlh,
sizeof(struct sockaddr_in),
&id->route.addr.src_addr,
RDMA_NL_RDMA_CM_ATTR_SRC_ADDR)) {
goto out;
}
if (ibnl_put_attr(skb, nlh,
sizeof(struct sockaddr_in),
&id->route.addr.dst_addr,
RDMA_NL_RDMA_CM_ATTR_DST_ADDR)) {
goto out;
}
} else if (id->route.addr.src_addr.ss_family == AF_INET6) {
if (ibnl_put_attr(skb, nlh,
sizeof(struct sockaddr_in6),
&id->route.addr.src_addr,
RDMA_NL_RDMA_CM_ATTR_SRC_ADDR)) {
goto out;
}
if (ibnl_put_attr(skb, nlh,
sizeof(struct sockaddr_in6),
&id->route.addr.dst_addr,
RDMA_NL_RDMA_CM_ATTR_DST_ADDR)) {
goto out;
}
}
id_stats->pid = id_priv->owner;
id_stats->port_space = id->ps;
id_stats->cm_state = id_priv->state;
id_stats->qp_num = id_priv->qp_num;
id_stats->qp_type = id->qp_type;
i_id++;
}
cb->args[1] = 0;
i_dev++;
}
out:
mutex_unlock(&lock);
cb->args[0] = i_dev;
cb->args[1] = i_id;
return skb->len;
}
static const struct ibnl_client_cbs cma_cb_table[] = {
[RDMA_NL_RDMA_CM_ID_STATS] = { .dump = cma_get_id_stats },
};
static int __init cma_init(void)
{
int ret;
@ -3343,6 +3430,10 @@ static int __init cma_init(void)
ret = ib_register_client(&cma_client);
if (ret)
goto err;
if (ibnl_add_client(RDMA_NL_RDMA_CM, RDMA_NL_RDMA_CM_NUM_OPS, cma_cb_table))
printk(KERN_WARNING "RDMA CMA: failed to add netlink callback\n");
return 0;
err:
@ -3355,6 +3446,7 @@ static int __init cma_init(void)
static void __exit cma_cleanup(void)
{
ibnl_remove_client(RDMA_NL_RDMA_CM);
ib_unregister_client(&cma_client);
unregister_netdevice_notifier(&cma_nb);
rdma_addr_unregister_client(&addr_client);

25
drivers/infiniband/core/device.c
View file

@ -38,6 +38,7 @@
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/mutex.h>
#include <rdma/rdma_netlink.h>
#include "core_priv.h"
@ -725,22 +726,40 @@ static int __init ib_core_init(void)
return -ENOMEM;
ret = ib_sysfs_setup();
if (ret)
if (ret) {
printk(KERN_WARNING "Couldn't create InfiniBand device class\n");
goto err;
}
ret = ibnl_init();
if (ret) {
printk(KERN_WARNING "Couldn't init IB netlink interface\n");
goto err_sysfs;
}
ret = ib_cache_setup();
if (ret) {
printk(KERN_WARNING "Couldn't set up InfiniBand P_Key/GID cache\n");
ib_sysfs_cleanup();
destroy_workqueue(ib_wq);
goto err_nl;
}
return 0;
err_nl:
ibnl_cleanup();
err_sysfs:
ib_sysfs_cleanup();
err:
destroy_workqueue(ib_wq);
return ret;
}
static void __exit ib_core_cleanup(void)
{
ib_cache_cleanup();
ibnl_cleanup();
ib_sysfs_cleanup();
/* Make sure that any pending umem accounting work is done. */
destroy_workqueue(ib_wq);

7
drivers/infiniband/core/mad.c
View file

@ -276,6 +276,13 @@ struct ib_mad_agent *ib_register_mad_agent(struct ib_device *device,
goto error1;
}
/* Verify the QP requested is supported. For example, Ethernet devices
* will not have QP0 */
if (!port_priv->qp_info[qpn].qp) {
ret = ERR_PTR(-EPROTONOSUPPORT);
goto error1;
}
/* Allocate structures */
mad_agent_priv = kzalloc(sizeof *mad_agent_priv, GFP_KERNEL);
if (!mad_agent_priv) {

190
drivers/infiniband/core/netlink.c Normal file
View file

@ -0,0 +1,190 @@
/*
* Copyright (c) 2010 Voltaire Inc. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#define pr_fmt(fmt) "%s:%s: " fmt, KBUILD_MODNAME, __func__
#include <net/netlink.h>
#include <net/net_namespace.h>
#include <net/sock.h>
#include <rdma/rdma_netlink.h>
struct ibnl_client {
struct list_head list;
int index;
int nops;
const struct ibnl_client_cbs *cb_table;
};
static DEFINE_MUTEX(ibnl_mutex);
static struct sock *nls;
static LIST_HEAD(client_list);
int ibnl_add_client(int index, int nops,
const struct ibnl_client_cbs cb_table[])
{
struct ibnl_client *cur;
struct ibnl_client *nl_client;
nl_client = kmalloc(sizeof *nl_client, GFP_KERNEL);
if (!nl_client)
return -ENOMEM;
nl_client->index = index;
nl_client->nops = nops;
nl_client->cb_table = cb_table;
mutex_lock(&ibnl_mutex);
list_for_each_entry(cur, &client_list, list) {
if (cur->index == index) {
pr_warn("Client for %d already exists\n", index);
mutex_unlock(&ibnl_mutex);
kfree(nl_client);
return -EINVAL;
}
}
list_add_tail(&nl_client->list, &client_list);
mutex_unlock(&ibnl_mutex);
return 0;
}
EXPORT_SYMBOL(ibnl_add_client);
int ibnl_remove_client(int index)
{
struct ibnl_client *cur, *next;
mutex_lock(&ibnl_mutex);
list_for_each_entry_safe(cur, next, &client_list, list) {
if (cur->index == index) {
list_del(&(cur->list));
mutex_unlock(&ibnl_mutex);
kfree(cur);
return 0;
}
}
pr_warn("Can't remove callback for client idx %d. Not found\n", index);
mutex_unlock(&ibnl_mutex);
return -EINVAL;
}
EXPORT_SYMBOL(ibnl_remove_client);
void *ibnl_put_msg(struct sk_buff *skb, struct nlmsghdr **nlh, int seq,
int len, int client, int op)
{
unsigned char *prev_tail;
prev_tail = skb_tail_pointer(skb);
*nlh = NLMSG_NEW(skb, 0, seq, RDMA_NL_GET_TYPE(client, op),
len, NLM_F_MULTI);
(*nlh)->nlmsg_len = skb_tail_pointer(skb) - prev_tail;
return NLMSG_DATA(*nlh);
nlmsg_failure:
nlmsg_trim(skb, prev_tail);
return NULL;
}
EXPORT_SYMBOL(ibnl_put_msg);
int ibnl_put_attr(struct sk_buff *skb, struct nlmsghdr *nlh,
int len, void *data, int type)
{
unsigned char *prev_tail;
prev_tail = skb_tail_pointer(skb);
NLA_PUT(skb, type, len, data);
nlh->nlmsg_len += skb_tail_pointer(skb) - prev_tail;
return 0;
nla_put_failure:
nlmsg_trim(skb, prev_tail - nlh->nlmsg_len);
return -EMSGSIZE;
}
EXPORT_SYMBOL(ibnl_put_attr);
static int ibnl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
{
struct ibnl_client *client;
int type = nlh->nlmsg_type;
int index = RDMA_NL_GET_CLIENT(type);
int op = RDMA_NL_GET_OP(type);
list_for_each_entry(client, &client_list, list) {
if (client->index == index) {
if (op < 0 || op >= client->nops ||
!client->cb_table[RDMA_NL_GET_OP(op)].dump)
return -EINVAL;
return netlink_dump_start(nls, skb, nlh,
client->cb_table[op].dump,
NULL);
}
}
pr_info("Index %d wasn't found in client list\n", index);
return -EINVAL;
}
static void ibnl_rcv(struct sk_buff *skb)
{
mutex_lock(&ibnl_mutex);
netlink_rcv_skb(skb, &ibnl_rcv_msg);
mutex_unlock(&ibnl_mutex);
}
int __init ibnl_init(void)
{
nls = netlink_kernel_create(&init_net, NETLINK_RDMA, 0, ibnl_rcv,
NULL, THIS_MODULE);
if (!nls) {
pr_warn("Failed to create netlink socket\n");
return -ENOMEM;
}
return 0;
}
void ibnl_cleanup(void)
{
struct ibnl_client *cur, *next;
mutex_lock(&ibnl_mutex);
list_for_each_entry_safe(cur, next, &client_list, list) {
list_del(&(cur->list));
kfree(cur);
}
mutex_unlock(&ibnl_mutex);
netlink_kernel_release(nls);
}

35
drivers/infiniband/core/ucma.c
View file

@ -367,13 +367,28 @@ static ssize_t ucma_get_event(struct ucma_file *file, const char __user *inbuf,
return ret;
}
static ssize_t ucma_create_id(struct ucma_file *file,
const char __user *inbuf,
int in_len, int out_len)
static int ucma_get_qp_type(struct rdma_ucm_create_id *cmd, enum ib_qp_type *qp_type)
{
switch (cmd->ps) {
case RDMA_PS_TCP:
*qp_type = IB_QPT_RC;
return 0;
case RDMA_PS_UDP:
case RDMA_PS_IPOIB:
*qp_type = IB_QPT_UD;
return 0;
default:
return -EINVAL;
}
}
static ssize_t ucma_create_id(struct ucma_file *file, const char __user *inbuf,
int in_len, int out_len)
{
struct rdma_ucm_create_id cmd;
struct rdma_ucm_create_id_resp resp;
struct ucma_context *ctx;
enum ib_qp_type qp_type;
int ret;
if (out_len < sizeof(resp))
@ -382,6 +397,10 @@ static ssize_t ucma_create_id(struct ucma_file *file,
if (copy_from_user(&cmd, inbuf, sizeof(cmd)))
return -EFAULT;
ret = ucma_get_qp_type(&cmd, &qp_type);
if (ret)
return ret;
mutex_lock(&file->mut);
ctx = ucma_alloc_ctx(file);
mutex_unlock(&file->mut);
@ -389,7 +408,7 @@ static ssize_t ucma_create_id(struct ucma_file *file,
return -ENOMEM;
ctx->uid = cmd.uid;
ctx->cm_id = rdma_create_id(ucma_event_handler, ctx, cmd.ps);
ctx->cm_id = rdma_create_id(ucma_event_handler, ctx, cmd.ps, qp_type);
if (IS_ERR(ctx->cm_id)) {
ret = PTR_ERR(ctx->cm_id);
goto err1;
@ -1338,9 +1357,11 @@ static const struct file_operations ucma_fops = {
};
static struct miscdevice ucma_misc = {
.minor = MISC_DYNAMIC_MINOR,
.name = "rdma_cm",
.fops = &ucma_fops,
.minor = MISC_DYNAMIC_MINOR,
.name = "rdma_cm",
.nodename = "infiniband/rdma_cm",
.mode = 0666,
.fops = &ucma_fops,
};
static ssize_t show_abi_version(struct device *dev,

7
drivers/infiniband/core/user_mad.c
View file

@ -1176,6 +1176,11 @@ static void ib_umad_remove_one(struct ib_device *device)
kref_put(&umad_dev->ref, ib_umad_release_dev);
}
static char *umad_devnode(struct device *dev, mode_t *mode)
{
return kasprintf(GFP_KERNEL, "infiniband/%s", dev_name(dev));
}
static int __init ib_umad_init(void)
{
int ret;
@ -1194,6 +1199,8 @@ static int __init ib_umad_init(void)
goto out_chrdev;
}
umad_class->devnode = umad_devnode;
ret = class_create_file(umad_class, &class_attr_abi_version.attr);
if (ret) {
printk(KERN_ERR "user_mad: couldn't create abi_version attribute\n");

8
drivers/infiniband/core/uverbs_main.c
View file

@ -824,6 +824,12 @@ static void ib_uverbs_remove_one(struct ib_device *device)
kfree(uverbs_dev);
}
static char *uverbs_devnode(struct device *dev, mode_t *mode)
{
*mode = 0666;
return kasprintf(GFP_KERNEL, "infiniband/%s", dev_name(dev));
}
static int __init ib_uverbs_init(void)
{
int ret;
@ -842,6 +848,8 @@ static int __init ib_uverbs_init(void)
goto out_chrdev;
}
uverbs_class->devnode = uverbs_devnode;
ret = class_create_file(uverbs_class, &class_attr_abi_version.attr);
if (ret) {
printk(KERN_ERR "user_verbs: couldn't create abi_version attribute\n");

26
drivers/infiniband/hw/cxgb3/iwch_cm.c
View file

@ -914,7 +914,7 @@ static void process_mpa_reply(struct iwch_ep *ep, struct sk_buff *skb)
goto err;
if (peer2peer && iwch_rqes_posted(ep->com.qp) == 0) {
iwch_post_zb_read(ep->com.qp);
iwch_post_zb_read(ep);
}
goto out;
@ -1078,6 +1078,8 @@ static int tx_ack(struct t3cdev *tdev, struct sk_buff *skb, void *ctx)
struct iwch_ep *ep = ctx;
struct cpl_wr_ack *hdr = cplhdr(skb);
unsigned int credits = ntohs(hdr->credits);
unsigned long flags;
int post_zb = 0;
PDBG("%s ep %p credits %u\n", __func__, ep, credits);
@ -1087,28 +1089,34 @@ static int tx_ack(struct t3cdev *tdev, struct sk_buff *skb, void *ctx)
return CPL_RET_BUF_DONE;
}
spin_lock_irqsave(&ep->com.lock, flags);
BUG_ON(credits != 1);
dst_confirm(ep->dst);
if (!ep->mpa_skb) {
PDBG("%s rdma_init wr_ack ep %p state %u\n",
__func__, ep, state_read(&ep->com));
__func__, ep, ep->com.state);
if (ep->mpa_attr.initiator) {
PDBG("%s initiator ep %p state %u\n",
__func__, ep, state_read(&ep->com));
if (peer2peer)
iwch_post_zb_read(ep->com.qp);
__func__, ep, ep->com.state);
if (peer2peer && ep->com.state == FPDU_MODE)
post_zb = 1;
} else {
PDBG("%s responder ep %p state %u\n",
__func__, ep, state_read(&ep->com));
ep->com.rpl_done = 1;
wake_up(&ep->com.waitq);
__func__, ep, ep->com.state);
if (ep->com.state == MPA_REQ_RCVD) {
ep->com.rpl_done = 1;
wake_up(&ep->com.waitq);
}
}
} else {
PDBG("%s lsm ack ep %p state %u freeing skb\n",
__func__, ep, state_read(&ep->com));
__func__, ep, ep->com.state);
kfree_skb(ep->mpa_skb);
ep->mpa_skb = NULL;
}
spin_unlock_irqrestore(&ep->com.lock, flags);
if (post_zb)
iwch_post_zb_read(ep);
return CPL_RET_BUF_DONE;
}

2
drivers/infiniband/hw/cxgb3/iwch_provider.h
View file

@ -332,7 +332,7 @@ int iwch_bind_mw(struct ib_qp *qp,
struct ib_mw_bind *mw_bind);
int iwch_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *wc);
int iwch_post_terminate(struct iwch_qp *qhp, struct respQ_msg_t *rsp_msg);
int iwch_post_zb_read(struct iwch_qp *qhp);
int iwch_post_zb_read(struct iwch_ep *ep);
int iwch_register_device(struct iwch_dev *dev);
void iwch_unregister_device(struct iwch_dev *dev);
void stop_read_rep_timer(struct iwch_qp *qhp);

6
drivers/infiniband/hw/cxgb3/iwch_qp.c
View file

@ -738,7 +738,7 @@ static inline void build_term_codes(struct respQ_msg_t *rsp_msg,
}
}
int iwch_post_zb_read(struct iwch_qp *qhp)
int iwch_post_zb_read(struct iwch_ep *ep)
{
union t3_wr *wqe;
struct sk_buff *skb;
@ -761,10 +761,10 @@ int iwch_post_zb_read(struct iwch_qp *qhp)
wqe->read.local_len = cpu_to_be32(0);
wqe->read.local_to = cpu_to_be64(1);
wqe->send.wrh.op_seop_flags = cpu_to_be32(V_FW_RIWR_OP(T3_WR_READ));
wqe->send.wrh.gen_tid_len = cpu_to_be32(V_FW_RIWR_TID(qhp->ep->hwtid)|
wqe->send.wrh.gen_tid_len = cpu_to_be32(V_FW_RIWR_TID(ep->hwtid)|
V_FW_RIWR_LEN(flit_cnt));
skb->priority = CPL_PRIORITY_DATA;
return iwch_cxgb3_ofld_send(qhp->rhp->rdev.t3cdev_p, skb);
return iwch_cxgb3_ofld_send(ep->com.qp->rhp->rdev.t3cdev_p, skb);
}
/*

18
drivers/infiniband/hw/cxgb4/iw_cxgb4.h
View file

@ -35,7 +35,7 @@
#include <linux/list.h>
#include <linux/spinlock.h>
#include <linux/idr.h>
#include <linux/workqueue.h>
#include <linux/completion.h>
#include <linux/netdevice.h>
#include <linux/sched.h>
#include <linux/pci.h>
@ -131,28 +131,21 @@ static inline int c4iw_num_stags(struct c4iw_rdev *rdev)
#define C4IW_WR_TO (10*HZ)
enum {
REPLY_READY = 0,
};
struct c4iw_wr_wait {
wait_queue_head_t wait;
unsigned long status;
struct completion completion;
int ret;
};
static inline void c4iw_init_wr_wait(struct c4iw_wr_wait *wr_waitp)
{
wr_waitp->ret = 0;
wr_waitp->status = 0;
init_waitqueue_head(&wr_waitp->wait);
init_completion(&wr_waitp->completion);
}
static inline void c4iw_wake_up(struct c4iw_wr_wait *wr_waitp, int ret)
{
wr_waitp->ret = ret;
set_bit(REPLY_READY, &wr_waitp->status);
wake_up(&wr_waitp->wait);
complete(&wr_waitp->completion);
}
static inline int c4iw_wait_for_reply(struct c4iw_rdev *rdev,
@ -164,8 +157,7 @@ static inline int c4iw_wait_for_reply(struct c4iw_rdev *rdev,
int ret;
do {
ret = wait_event_timeout(wr_waitp->wait,
test_and_clear_bit(REPLY_READY, &wr_waitp->status), to);
ret = wait_for_completion_timeout(&wr_waitp->completion, to);
if (!ret) {
printk(KERN_ERR MOD "%s - Device %s not responding - "
"tid %u qpid %u\n", func,

4
drivers/infiniband/hw/nes/nes.c
View file

@ -1138,7 +1138,9 @@ static ssize_t nes_store_wqm_quanta(struct device_driver *ddp,
u32 i = 0;
struct nes_device *nesdev;
strict_strtoul(buf, 0, &wqm_quanta_value);
if (kstrtoul(buf, 0, &wqm_quanta_value) < 0)
return -EINVAL;
list_for_each_entry(nesdev, &nes_dev_list, list) {
if (i == ee_flsh_adapter) {
nesdev->nesadapter->wqm_quanta = wqm_quanta_value;

2
drivers/infiniband/hw/qib/Kconfig
View file

@ -1,6 +1,6 @@
config INFINIBAND_QIB
tristate "QLogic PCIe HCA support"
depends on 64BIT && NET
depends on 64BIT
---help---
This is a low-level driver for QLogic PCIe QLE InfiniBand host
channel adapters. This driver does not support the QLogic

2
drivers/infiniband/ulp/iser/iser_verbs.c
View file

@ -548,7 +548,7 @@ int iser_connect(struct iser_conn *ib_conn,
iser_conn_get(ib_conn); /* ref ib conn's cma id */
ib_conn->cma_id = rdma_create_id(iser_cma_handler,
(void *)ib_conn,
RDMA_PS_TCP);
RDMA_PS_TCP, IB_QPT_RC);
if (IS_ERR(ib_conn->cma_id)) {
err = PTR_ERR(ib_conn->cma_id);
iser_err("rdma_create_id failed: %d\n", err);

4
drivers/infiniband/ulp/srp/ib_srp.c
View file

@ -1147,7 +1147,7 @@ static void srp_process_aer_req(struct srp_target_port *target,
static void srp_handle_recv(struct srp_target_port *target, struct ib_wc *wc)
{
struct ib_device *dev = target->srp_host->srp_dev->dev;
struct srp_iu *iu = (struct srp_iu *) wc->wr_id;
struct srp_iu *iu = (struct srp_iu *) (uintptr_t) wc->wr_id;
int res;
u8 opcode;
@ -1231,7 +1231,7 @@ static void srp_send_completion(struct ib_cq *cq, void *target_ptr)
break;
}
iu = (struct srp_iu *) wc.wr_id;
iu = (struct srp_iu *) (uintptr_t) wc.wr_id;
list_add(&iu->list, &target->free_tx);
}
}

1
include/linux/netlink.h
View file

@ -24,6 +24,7 @@
/* leave room for NETLINK_DM (DM Events) */
#define NETLINK_SCSITRANSPORT 18 /* SCSI Transports */
#define NETLINK_ECRYPTFS 19
#define NETLINK_RDMA 20
#define MAX_LINKS 32

5
include/rdma/Kbuild
View file

@ -1 +1,6 @@
header-y += ib_user_cm.h
header-y += ib_user_mad.h
header-y += ib_user_sa.h
header-y += ib_user_verbs.h
header-y += rdma_netlink.h
header-y += rdma_user_cm.h

1
include/rdma/ib_user_cm.h
View file

@ -34,6 +34,7 @@
#ifndef IB_USER_CM_H
#define IB_USER_CM_H
#include <linux/types.h>
#include <rdma/ib_user_sa.h>
#define IB_USER_CM_ABI_VERSION 5

19
include/rdma/rdma_cm.h
View file

@ -111,6 +111,20 @@ struct rdma_cm_event {
} param;
};
enum rdma_cm_state {
RDMA_CM_IDLE,
RDMA_CM_ADDR_QUERY,
RDMA_CM_ADDR_RESOLVED,
RDMA_CM_ROUTE_QUERY,
RDMA_CM_ROUTE_RESOLVED,
RDMA_CM_CONNECT,
RDMA_CM_DISCONNECT,
RDMA_CM_ADDR_BOUND,
RDMA_CM_LISTEN,
RDMA_CM_DEVICE_REMOVAL,
RDMA_CM_DESTROYING
};
struct rdma_cm_id;
/**
@ -130,6 +144,7 @@ struct rdma_cm_id {
rdma_cm_event_handler event_handler;
struct rdma_route route;
enum rdma_port_space ps;
enum ib_qp_type qp_type;
u8 port_num;
};
@ -140,9 +155,11 @@ struct rdma_cm_id {
* returned rdma_id.
* @context: User specified context associated with the id.
* @ps: RDMA port space.
* @qp_type: type of queue pair associated with the id.
*/
struct rdma_cm_id *rdma_create_id(rdma_cm_event_handler event_handler,
void *context, enum rdma_port_space ps);
void *context, enum rdma_port_space ps,
enum ib_qp_type qp_type);
/**
* rdma_destroy_id - Destroys an RDMA identifier.

92
include/rdma/rdma_netlink.h Normal file
View file

@ -0,0 +1,92 @@
#ifndef _RDMA_NETLINK_H
#define _RDMA_NETLINK_H
#include <linux/types.h>
enum {
RDMA_NL_RDMA_CM = 1
};
#define RDMA_NL_GET_CLIENT(type) ((type & (((1 << 6) - 1) << 10)) >> 10)
#define RDMA_NL_GET_OP(type) (type & ((1 << 10) - 1))
#define RDMA_NL_GET_TYPE(client, op) ((client << 10) + op)
enum {
RDMA_NL_RDMA_CM_ID_STATS = 0,
RDMA_NL_RDMA_CM_NUM_OPS
};
enum {
RDMA_NL_RDMA_CM_ATTR_SRC_ADDR = 1,
RDMA_NL_RDMA_CM_ATTR_DST_ADDR,
RDMA_NL_RDMA_CM_NUM_ATTR,
};
struct rdma_cm_id_stats {
__u32 qp_num;
__u32 bound_dev_if;
__u32 port_space;
__s32 pid;
__u8 cm_state;
__u8 node_type;
__u8 port_num;
__u8 qp_type;
};
#ifdef __KERNEL__
#include <linux/netlink.h>
struct ibnl_client_cbs {
int (*dump)(struct sk_buff *skb, struct netlink_callback *nlcb);
};
int ibnl_init(void);
void ibnl_cleanup(void);
/**
* Add a a client to the list of IB netlink exporters.
* @index: Index of the added client
* @nops: Number of supported ops by the added client.
* @cb_table: A table for op->callback
*
* Returns 0 on success or a negative error code.
*/
int ibnl_add_client(int index, int nops,
const struct ibnl_client_cbs cb_table[]);
/**
* Remove a client from IB netlink.
* @index: Index of the removed IB client.
*
* Returns 0 on success or a negative error code.
*/
int ibnl_remove_client(int index);
/**
* Put a new message in a supplied skb.
* @skb: The netlink skb.
* @nlh: Pointer to put the header of the new netlink message.
* @seq: The message sequence number.
* @len: The requested message length to allocate.
* @client: Calling IB netlink client.
* @op: message content op.
* Returns the allocated buffer on success and NULL on failure.
*/
void *ibnl_put_msg(struct sk_buff *skb, struct nlmsghdr **nlh, int seq,
int len, int client, int op);
/**
* Put a new attribute in a supplied skb.
* @skb: The netlink skb.
* @nlh: Header of the netlink message to append the attribute to.
* @len: The length of the attribute data.
* @data: The attribute data to put.
* @type: The attribute type.
* Returns the 0 and a negative error code on failure.
*/
int ibnl_put_attr(struct sk_buff *skb, struct nlmsghdr *nlh,
int len, void *data, int type);
#endif /* __KERNEL__ */
#endif /* _RDMA_NETLINK_H */

3
net/9p/trans_rdma.c
View file

@ -589,7 +589,8 @@ rdma_create_trans(struct p9_client *client, const char *addr, char *args)
return -ENOMEM;
/* Create the RDMA CM ID */
rdma->cm_id = rdma_create_id(p9_cm_event_handler, client, RDMA_PS_TCP);
rdma->cm_id = rdma_create_id(p9_cm_event_handler, client, RDMA_PS_TCP,
IB_QPT_RC);
if (IS_ERR(rdma->cm_id))
goto error;

2
net/rds/ib.c
View file

@ -325,7 +325,7 @@ static int rds_ib_laddr_check(__be32 addr)
/* Create a CMA ID and try to bind it. This catches both
* IB and iWARP capable NICs.
*/
cm_id = rdma_create_id(NULL, NULL, RDMA_PS_TCP);
cm_id = rdma_create_id(NULL, NULL, RDMA_PS_TCP, IB_QPT_RC);
if (IS_ERR(cm_id))
return PTR_ERR(cm_id);

2
net/rds/ib_cm.c
View file

@ -587,7 +587,7 @@ int rds_ib_conn_connect(struct rds_connection *conn)
/* XXX I wonder what affect the port space has */
/* delegate cm event handler to rdma_transport */
ic->i_cm_id = rdma_create_id(rds_rdma_cm_event_handler, conn,
RDMA_PS_TCP);
RDMA_PS_TCP, IB_QPT_RC);
if (IS_ERR(ic->i_cm_id)) {
ret = PTR_ERR(ic->i_cm_id);
ic->i_cm_id = NULL;

2
net/rds/iw.c
View file

@ -226,7 +226,7 @@ static int rds_iw_laddr_check(__be32 addr)
/* Create a CMA ID and try to bind it. This catches both
* IB and iWARP capable NICs.
*/
cm_id = rdma_create_id(NULL, NULL, RDMA_PS_TCP);
cm_id = rdma_create_id(NULL, NULL, RDMA_PS_TCP, IB_QPT_RC);
if (IS_ERR(cm_id))
return PTR_ERR(cm_id);

2
net/rds/iw_cm.c
View file

@ -522,7 +522,7 @@ int rds_iw_conn_connect(struct rds_connection *conn)
/* XXX I wonder what affect the port space has */
/* delegate cm event handler to rdma_transport */
ic->i_cm_id = rdma_create_id(rds_rdma_cm_event_handler, conn,
RDMA_PS_TCP);
RDMA_PS_TCP, IB_QPT_RC);
if (IS_ERR(ic->i_cm_id)) {
ret = PTR_ERR(ic->i_cm_id);
ic->i_cm_id = NULL;

3
net/rds/rdma_transport.c
View file

@ -158,7 +158,8 @@ static int rds_rdma_listen_init(void)
struct rdma_cm_id *cm_id;
int ret;
cm_id = rdma_create_id(rds_rdma_cm_event_handler, NULL, RDMA_PS_TCP);
cm_id = rdma_create_id(rds_rdma_cm_event_handler, NULL, RDMA_PS_TCP,
IB_QPT_RC);
if (IS_ERR(cm_id)) {
ret = PTR_ERR(cm_id);
printk(KERN_ERR "RDS/RDMA: failed to setup listener, "

3
net/sunrpc/xprtrdma/svc_rdma_transport.c
View file

@ -695,7 +695,8 @@ static struct svc_xprt *svc_rdma_create(struct svc_serv *serv,
return ERR_PTR(-ENOMEM);
xprt = &cma_xprt->sc_xprt;
listen_id = rdma_create_id(rdma_listen_handler, cma_xprt, RDMA_PS_TCP);
listen_id = rdma_create_id(rdma_listen_handler, cma_xprt, RDMA_PS_TCP,
IB_QPT_RC);
if (IS_ERR(listen_id)) {
ret = PTR_ERR(listen_id);
dprintk("svcrdma: rdma_create_id failed = %d\n", ret);

2
net/sunrpc/xprtrdma/verbs.c
View file

@ -387,7 +387,7 @@ rpcrdma_create_id(struct rpcrdma_xprt *xprt,
init_completion(&ia->ri_done);
id = rdma_create_id(rpcrdma_conn_upcall, xprt, RDMA_PS_TCP);
id = rdma_create_id(rpcrdma_conn_upcall, xprt, RDMA_PS_TCP, IB_QPT_RC);
if (IS_ERR(id)) {
rc = PTR_ERR(id);
dprintk("RPC: %s: rdma_create_id() failed %i\n",