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-rw-r--r--drivers/infiniband/core/cma.c98
-rw-r--r--drivers/infiniband/core/device.c9
-rw-r--r--drivers/infiniband/core/iwcm.c54
-rw-r--r--drivers/infiniband/core/iwcm.h2
-rw-r--r--drivers/infiniband/core/iwpm_util.c3
-rw-r--r--drivers/infiniband/core/multicast.c12
-rw-r--r--drivers/infiniband/core/netlink.c6
-rw-r--r--drivers/infiniband/core/sa_query.c41
-rw-r--r--drivers/infiniband/core/sysfs.c15
-rw-r--r--drivers/infiniband/core/ucma.c18
-rw-r--r--drivers/infiniband/core/uverbs.h14
-rw-r--r--drivers/infiniband/core/uverbs_cmd.c535
-rw-r--r--drivers/infiniband/core/uverbs_main.c75
-rw-r--r--drivers/infiniband/core/verbs.c163
14 files changed, 956 insertions, 89 deletions
diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index ad1b1adcf6f0..e6dfa1bd3def 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -68,6 +68,7 @@ MODULE_DESCRIPTION("Generic RDMA CM Agent");
MODULE_LICENSE("Dual BSD/GPL");
#define CMA_CM_RESPONSE_TIMEOUT 20
+#define CMA_QUERY_CLASSPORT_INFO_TIMEOUT 3000
#define CMA_MAX_CM_RETRIES 15
#define CMA_CM_MRA_SETTING (IB_CM_MRA_FLAG_DELAY | 24)
#define CMA_IBOE_PACKET_LIFETIME 18
@@ -162,6 +163,14 @@ struct rdma_bind_list {
unsigned short port;
};
+struct class_port_info_context {
+ struct ib_class_port_info *class_port_info;
+ struct ib_device *device;
+ struct completion done;
+ struct ib_sa_query *sa_query;
+ u8 port_num;
+};
+
static int cma_ps_alloc(struct net *net, enum rdma_port_space ps,
struct rdma_bind_list *bind_list, int snum)
{
@@ -306,6 +315,7 @@ struct cma_multicast {
struct sockaddr_storage addr;
struct kref mcref;
bool igmp_joined;
+ u8 join_state;
};
struct cma_work {
@@ -3752,10 +3762,63 @@ static void cma_set_mgid(struct rdma_id_private *id_priv,
}
}
+static void cma_query_sa_classport_info_cb(int status,
+ struct ib_class_port_info *rec,
+ void *context)
+{
+ struct class_port_info_context *cb_ctx = context;
+
+ WARN_ON(!context);
+
+ if (status || !rec) {
+ pr_debug("RDMA CM: %s port %u failed query ClassPortInfo status: %d\n",
+ cb_ctx->device->name, cb_ctx->port_num, status);
+ goto out;
+ }
+
+ memcpy(cb_ctx->class_port_info, rec, sizeof(struct ib_class_port_info));
+
+out:
+ complete(&cb_ctx->done);
+}
+
+static int cma_query_sa_classport_info(struct ib_device *device, u8 port_num,
+ struct ib_class_port_info *class_port_info)
+{
+ struct class_port_info_context *cb_ctx;
+ int ret;
+
+ cb_ctx = kmalloc(sizeof(*cb_ctx), GFP_KERNEL);
+ if (!cb_ctx)
+ return -ENOMEM;
+
+ cb_ctx->device = device;
+ cb_ctx->class_port_info = class_port_info;
+ cb_ctx->port_num = port_num;
+ init_completion(&cb_ctx->done);
+
+ ret = ib_sa_classport_info_rec_query(&sa_client, device, port_num,
+ CMA_QUERY_CLASSPORT_INFO_TIMEOUT,
+ GFP_KERNEL, cma_query_sa_classport_info_cb,
+ cb_ctx, &cb_ctx->sa_query);
+ if (ret < 0) {
+ pr_err("RDMA CM: %s port %u failed to send ClassPortInfo query, ret: %d\n",
+ device->name, port_num, ret);
+ goto out;
+ }
+
+ wait_for_completion(&cb_ctx->done);
+
+out:
+ kfree(cb_ctx);
+ return ret;
+}
+
static int cma_join_ib_multicast(struct rdma_id_private *id_priv,
struct cma_multicast *mc)
{
struct ib_sa_mcmember_rec rec;
+ struct ib_class_port_info class_port_info;
struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;
ib_sa_comp_mask comp_mask;
int ret;
@@ -3774,7 +3837,24 @@ static int cma_join_ib_multicast(struct rdma_id_private *id_priv,
rec.qkey = cpu_to_be32(id_priv->qkey);
rdma_addr_get_sgid(dev_addr, &rec.port_gid);
rec.pkey = cpu_to_be16(ib_addr_get_pkey(dev_addr));
- rec.join_state = 1;
+ rec.join_state = mc->join_state;
+
+ if (rec.join_state == BIT(SENDONLY_FULLMEMBER_JOIN)) {
+ ret = cma_query_sa_classport_info(id_priv->id.device,
+ id_priv->id.port_num,
+ &class_port_info);
+
+ if (ret)
+ return ret;
+
+ if (!(ib_get_cpi_capmask2(&class_port_info) &
+ IB_SA_CAP_MASK2_SENDONLY_FULL_MEM_SUPPORT)) {
+ pr_warn("RDMA CM: %s port %u Unable to multicast join\n"
+ "RDMA CM: SM doesn't support Send Only Full Member option\n",
+ id_priv->id.device->name, id_priv->id.port_num);
+ return -EOPNOTSUPP;
+ }
+ }
comp_mask = IB_SA_MCMEMBER_REC_MGID | IB_SA_MCMEMBER_REC_PORT_GID |
IB_SA_MCMEMBER_REC_PKEY | IB_SA_MCMEMBER_REC_JOIN_STATE |
@@ -3843,6 +3923,9 @@ static int cma_iboe_join_multicast(struct rdma_id_private *id_priv,
struct sockaddr *addr = (struct sockaddr *)&mc->addr;
struct net_device *ndev = NULL;
enum ib_gid_type gid_type;
+ bool send_only;
+
+ send_only = mc->join_state == BIT(SENDONLY_FULLMEMBER_JOIN);
if (cma_zero_addr((struct sockaddr *)&mc->addr))
return -EINVAL;
@@ -3878,10 +3961,12 @@ static int cma_iboe_join_multicast(struct rdma_id_private *id_priv,
if (addr->sa_family == AF_INET) {
if (gid_type == IB_GID_TYPE_ROCE_UDP_ENCAP) {
mc->multicast.ib->rec.hop_limit = IPV6_DEFAULT_HOPLIMIT;
- err = cma_igmp_send(ndev, &mc->multicast.ib->rec.mgid,
- true);
- if (!err)
- mc->igmp_joined = true;
+ if (!send_only) {
+ err = cma_igmp_send(ndev, &mc->multicast.ib->rec.mgid,
+ true);
+ if (!err)
+ mc->igmp_joined = true;
+ }
}
} else {
if (gid_type == IB_GID_TYPE_ROCE_UDP_ENCAP)
@@ -3911,7 +3996,7 @@ out1:
}
int rdma_join_multicast(struct rdma_cm_id *id, struct sockaddr *addr,
- void *context)
+ u8 join_state, void *context)
{
struct rdma_id_private *id_priv;
struct cma_multicast *mc;
@@ -3930,6 +4015,7 @@ int rdma_join_multicast(struct rdma_cm_id *id, struct sockaddr *addr,
mc->context = context;
mc->id_priv = id_priv;
mc->igmp_joined = false;
+ mc->join_state = join_state;
spin_lock(&id_priv->lock);
list_add(&mc->list, &id_priv->mc_list);
spin_unlock(&id_priv->lock);
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index 5c155fa91eec..760ef603a468 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -311,6 +311,15 @@ static int read_port_immutable(struct ib_device *device)
return 0;
}
+void ib_get_device_fw_str(struct ib_device *dev, char *str, size_t str_len)
+{
+ if (dev->get_dev_fw_str)
+ dev->get_dev_fw_str(dev, str, str_len);
+ else
+ str[0] = '\0';
+}
+EXPORT_SYMBOL(ib_get_device_fw_str);
+
/**
* ib_register_device - Register an IB device with IB core
* @device:Device to register
diff --git a/drivers/infiniband/core/iwcm.c b/drivers/infiniband/core/iwcm.c
index f0572049d291..357624f8b9d3 100644
--- a/drivers/infiniband/core/iwcm.c
+++ b/drivers/infiniband/core/iwcm.c
@@ -183,15 +183,14 @@ static void free_cm_id(struct iwcm_id_private *cm_id_priv)
/*
* Release a reference on cm_id. If the last reference is being
- * released, enable the waiting thread (in iw_destroy_cm_id) to
- * get woken up, and return 1 if a thread is already waiting.
+ * released, free the cm_id and return 1.
*/
static int iwcm_deref_id(struct iwcm_id_private *cm_id_priv)
{
BUG_ON(atomic_read(&cm_id_priv->refcount)==0);
if (atomic_dec_and_test(&cm_id_priv->refcount)) {
BUG_ON(!list_empty(&cm_id_priv->work_list));
- complete(&cm_id_priv->destroy_comp);
+ free_cm_id(cm_id_priv);
return 1;
}
@@ -208,19 +207,10 @@ static void add_ref(struct iw_cm_id *cm_id)
static void rem_ref(struct iw_cm_id *cm_id)
{
struct iwcm_id_private *cm_id_priv;
- int cb_destroy;
cm_id_priv = container_of(cm_id, struct iwcm_id_private, id);
- /*
- * Test bit before deref in case the cm_id gets freed on another
- * thread.
- */
- cb_destroy = test_bit(IWCM_F_CALLBACK_DESTROY, &cm_id_priv->flags);
- if (iwcm_deref_id(cm_id_priv) && cb_destroy) {
- BUG_ON(!list_empty(&cm_id_priv->work_list));
- free_cm_id(cm_id_priv);
- }
+ (void)iwcm_deref_id(cm_id_priv);
}
static int cm_event_handler(struct iw_cm_id *cm_id, struct iw_cm_event *event);
@@ -370,6 +360,12 @@ static void destroy_cm_id(struct iw_cm_id *cm_id)
wait_event(cm_id_priv->connect_wait,
!test_bit(IWCM_F_CONNECT_WAIT, &cm_id_priv->flags));
+ /*
+ * Since we're deleting the cm_id, drop any events that
+ * might arrive before the last dereference.
+ */
+ set_bit(IWCM_F_DROP_EVENTS, &cm_id_priv->flags);
+
spin_lock_irqsave(&cm_id_priv->lock, flags);
switch (cm_id_priv->state) {
case IW_CM_STATE_LISTEN:
@@ -433,13 +429,7 @@ void iw_destroy_cm_id(struct iw_cm_id *cm_id)
struct iwcm_id_private *cm_id_priv;
cm_id_priv = container_of(cm_id, struct iwcm_id_private, id);
- BUG_ON(test_bit(IWCM_F_CALLBACK_DESTROY, &cm_id_priv->flags));
-
destroy_cm_id(cm_id);
-
- wait_for_completion(&cm_id_priv->destroy_comp);
-
- free_cm_id(cm_id_priv);
}
EXPORT_SYMBOL(iw_destroy_cm_id);
@@ -809,10 +799,7 @@ static void cm_conn_req_handler(struct iwcm_id_private *listen_id_priv,
ret = cm_id->cm_handler(cm_id, iw_event);
if (ret) {
iw_cm_reject(cm_id, NULL, 0);
- set_bit(IWCM_F_CALLBACK_DESTROY, &cm_id_priv->flags);
- destroy_cm_id(cm_id);
- if (atomic_read(&cm_id_priv->refcount)==0)
- free_cm_id(cm_id_priv);
+ iw_destroy_cm_id(cm_id);
}
out:
@@ -1000,7 +987,6 @@ static void cm_work_handler(struct work_struct *_work)
unsigned long flags;
int empty;
int ret = 0;
- int destroy_id;
spin_lock_irqsave(&cm_id_priv->lock, flags);
empty = list_empty(&cm_id_priv->work_list);
@@ -1013,20 +999,14 @@ static void cm_work_handler(struct work_struct *_work)
put_work(work);
spin_unlock_irqrestore(&cm_id_priv->lock, flags);
- ret = process_event(cm_id_priv, &levent);
- if (ret) {
- set_bit(IWCM_F_CALLBACK_DESTROY, &cm_id_priv->flags);
- destroy_cm_id(&cm_id_priv->id);
- }
- BUG_ON(atomic_read(&cm_id_priv->refcount)==0);
- destroy_id = test_bit(IWCM_F_CALLBACK_DESTROY, &cm_id_priv->flags);
- if (iwcm_deref_id(cm_id_priv)) {
- if (destroy_id) {
- BUG_ON(!list_empty(&cm_id_priv->work_list));
- free_cm_id(cm_id_priv);
- }
+ if (!test_bit(IWCM_F_DROP_EVENTS, &cm_id_priv->flags)) {
+ ret = process_event(cm_id_priv, &levent);
+ if (ret)
+ destroy_cm_id(&cm_id_priv->id);
+ } else
+ pr_debug("dropping event %d\n", levent.event);
+ if (iwcm_deref_id(cm_id_priv))
return;
- }
if (empty)
return;
spin_lock_irqsave(&cm_id_priv->lock, flags);
diff --git a/drivers/infiniband/core/iwcm.h b/drivers/infiniband/core/iwcm.h
index 3f6cc82564c8..82c2cd1b0a80 100644
--- a/drivers/infiniband/core/iwcm.h
+++ b/drivers/infiniband/core/iwcm.h
@@ -56,7 +56,7 @@ struct iwcm_id_private {
struct list_head work_free_list;
};
-#define IWCM_F_CALLBACK_DESTROY 1
+#define IWCM_F_DROP_EVENTS 1
#define IWCM_F_CONNECT_WAIT 2
#endif /* IWCM_H */
diff --git a/drivers/infiniband/core/iwpm_util.c b/drivers/infiniband/core/iwpm_util.c
index b65e06c560d7..ade71e7f0131 100644
--- a/drivers/infiniband/core/iwpm_util.c
+++ b/drivers/infiniband/core/iwpm_util.c
@@ -37,6 +37,7 @@
#define IWPM_MAPINFO_HASH_MASK (IWPM_MAPINFO_HASH_SIZE - 1)
#define IWPM_REMINFO_HASH_SIZE 64
#define IWPM_REMINFO_HASH_MASK (IWPM_REMINFO_HASH_SIZE - 1)
+#define IWPM_MSG_SIZE 512
static LIST_HEAD(iwpm_nlmsg_req_list);
static DEFINE_SPINLOCK(iwpm_nlmsg_req_lock);
@@ -452,7 +453,7 @@ struct sk_buff *iwpm_create_nlmsg(u32 nl_op, struct nlmsghdr **nlh,
{
struct sk_buff *skb = NULL;
- skb = dev_alloc_skb(NLMSG_GOODSIZE);
+ skb = dev_alloc_skb(IWPM_MSG_SIZE);
if (!skb) {
pr_err("%s Unable to allocate skb\n", __func__);
goto create_nlmsg_exit;
diff --git a/drivers/infiniband/core/multicast.c b/drivers/infiniband/core/multicast.c
index a83ec28a147b..3a3c5d73bbfc 100644
--- a/drivers/infiniband/core/multicast.c
+++ b/drivers/infiniband/core/multicast.c
@@ -93,18 +93,6 @@ enum {
struct mcast_member;
-/*
-* There are 4 types of join states:
-* FullMember, NonMember, SendOnlyNonMember, SendOnlyFullMember.
-*/
-enum {
- FULLMEMBER_JOIN,
- NONMEMBER_JOIN,
- SENDONLY_NONMEBER_JOIN,
- SENDONLY_FULLMEMBER_JOIN,
- NUM_JOIN_MEMBERSHIP_TYPES,
-};
-
struct mcast_group {
struct ib_sa_mcmember_rec rec;
struct rb_node node;
diff --git a/drivers/infiniband/core/netlink.c b/drivers/infiniband/core/netlink.c
index 9b8c20c8209b..10469b0088b5 100644
--- a/drivers/infiniband/core/netlink.c
+++ b/drivers/infiniband/core/netlink.c
@@ -229,7 +229,10 @@ static void ibnl_rcv(struct sk_buff *skb)
int ibnl_unicast(struct sk_buff *skb, struct nlmsghdr *nlh,
__u32 pid)
{
- return nlmsg_unicast(nls, skb, pid);
+ int err;
+
+ err = netlink_unicast(nls, skb, pid, 0);
+ return (err < 0) ? err : 0;
}
EXPORT_SYMBOL(ibnl_unicast);
@@ -252,6 +255,7 @@ int __init ibnl_init(void)
return -ENOMEM;
}
+ nls->sk_sndtimeo = 10 * HZ;
return 0;
}
diff --git a/drivers/infiniband/core/sa_query.c b/drivers/infiniband/core/sa_query.c
index e95538650dc6..b9bf7aa055e7 100644
--- a/drivers/infiniband/core/sa_query.c
+++ b/drivers/infiniband/core/sa_query.c
@@ -65,10 +65,17 @@ struct ib_sa_sm_ah {
u8 src_path_mask;
};
+struct ib_sa_classport_cache {
+ bool valid;
+ struct ib_class_port_info data;
+};
+
struct ib_sa_port {
struct ib_mad_agent *agent;
struct ib_sa_sm_ah *sm_ah;
struct work_struct update_task;
+ struct ib_sa_classport_cache classport_info;
+ spinlock_t classport_lock; /* protects class port info set */
spinlock_t ah_lock;
u8 port_num;
};
@@ -998,6 +1005,13 @@ static void ib_sa_event(struct ib_event_handler *handler, struct ib_event *event
port->sm_ah = NULL;
spin_unlock_irqrestore(&port->ah_lock, flags);
+ if (event->event == IB_EVENT_SM_CHANGE ||
+ event->event == IB_EVENT_CLIENT_REREGISTER ||
+ event->event == IB_EVENT_LID_CHANGE) {
+ spin_lock_irqsave(&port->classport_lock, flags);
+ port->classport_info.valid = false;
+ spin_unlock_irqrestore(&port->classport_lock, flags);
+ }
queue_work(ib_wq, &sa_dev->port[event->element.port_num -
sa_dev->start_port].update_task);
}
@@ -1719,6 +1733,7 @@ static void ib_sa_classport_info_rec_callback(struct ib_sa_query *sa_query,
int status,
struct ib_sa_mad *mad)
{
+ unsigned long flags;
struct ib_sa_classport_info_query *query =
container_of(sa_query, struct ib_sa_classport_info_query, sa_query);
@@ -1728,6 +1743,16 @@ static void ib_sa_classport_info_rec_callback(struct ib_sa_query *sa_query,
ib_unpack(classport_info_rec_table,
ARRAY_SIZE(classport_info_rec_table),
mad->data, &rec);
+
+ spin_lock_irqsave(&sa_query->port->classport_lock, flags);
+ if (!status && !sa_query->port->classport_info.valid) {
+ memcpy(&sa_query->port->classport_info.data, &rec,
+ sizeof(sa_query->port->classport_info.data));
+
+ sa_query->port->classport_info.valid = true;
+ }
+ spin_unlock_irqrestore(&sa_query->port->classport_lock, flags);
+
query->callback(status, &rec, query->context);
} else {
query->callback(status, NULL, query->context);
@@ -1754,7 +1779,9 @@ int ib_sa_classport_info_rec_query(struct ib_sa_client *client,
struct ib_sa_port *port;
struct ib_mad_agent *agent;
struct ib_sa_mad *mad;
+ struct ib_class_port_info cached_class_port_info;
int ret;
+ unsigned long flags;
if (!sa_dev)
return -ENODEV;
@@ -1762,6 +1789,17 @@ int ib_sa_classport_info_rec_query(struct ib_sa_client *client,
port = &sa_dev->port[port_num - sa_dev->start_port];
agent = port->agent;
+ /* Use cached ClassPortInfo attribute if valid instead of sending mad */
+ spin_lock_irqsave(&port->classport_lock, flags);
+ if (port->classport_info.valid && callback) {
+ memcpy(&cached_class_port_info, &port->classport_info.data,
+ sizeof(cached_class_port_info));
+ spin_unlock_irqrestore(&port->classport_lock, flags);
+ callback(0, &cached_class_port_info, context);
+ return 0;
+ }
+ spin_unlock_irqrestore(&port->classport_lock, flags);
+
query = kzalloc(sizeof(*query), gfp_mask);
if (!query)
return -ENOMEM;
@@ -1885,6 +1923,9 @@ static void ib_sa_add_one(struct ib_device *device)
sa_dev->port[i].sm_ah = NULL;
sa_dev->port[i].port_num = i + s;
+ spin_lock_init(&sa_dev->port[i].classport_lock);
+ sa_dev->port[i].classport_info.valid = false;
+
sa_dev->port[i].agent =
ib_register_mad_agent(device, i + s, IB_QPT_GSI,
NULL, 0, send_handler,
diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c
index 60df4f8e81be..15defefecb4f 100644
--- a/drivers/infiniband/core/sysfs.c
+++ b/drivers/infiniband/core/sysfs.c
@@ -38,6 +38,7 @@
#include <linux/stat.h>
#include <linux/string.h>
#include <linux/netdevice.h>
+#include <linux/ethtool.h>
#include <rdma/ib_mad.h>
#include <rdma/ib_pma.h>
@@ -1200,16 +1201,28 @@ static ssize_t set_node_desc(struct device *device,
return count;
}
+static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr,
+ char *buf)
+{
+ struct ib_device *dev = container_of(device, struct ib_device, dev);
+
+ ib_get_device_fw_str(dev, buf, PAGE_SIZE);
+ strlcat(buf, "\n", PAGE_SIZE);
+ return strlen(buf);
+}
+
static DEVICE_ATTR(node_type, S_IRUGO, show_node_type, NULL);
static DEVICE_ATTR(sys_image_guid, S_IRUGO, show_sys_image_guid, NULL);
static DEVICE_ATTR(node_guid, S_IRUGO, show_node_guid, NULL);
static DEVICE_ATTR(node_desc, S_IRUGO | S_IWUSR, show_node_desc, set_node_desc);
+static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
static struct device_attribute *ib_class_attributes[] = {
&dev_attr_node_type,
&dev_attr_sys_image_guid,
&dev_attr_node_guid,
- &dev_attr_node_desc
+ &dev_attr_node_desc,
+ &dev_attr_fw_ver,
};
static void free_port_list_attributes(struct ib_device *device)
diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
index c0f3826abb30..2825ece91d3c 100644
--- a/drivers/infiniband/core/ucma.c
+++ b/drivers/infiniband/core/ucma.c
@@ -106,6 +106,7 @@ struct ucma_multicast {
int events_reported;
u64 uid;
+ u8 join_state;
struct list_head list;
struct sockaddr_storage addr;
};
@@ -1317,12 +1318,20 @@ static ssize_t ucma_process_join(struct ucma_file *file,
struct ucma_multicast *mc;
struct sockaddr *addr;
int ret;
+ u8 join_state;
if (out_len < sizeof(resp))
return -ENOSPC;
addr = (struct sockaddr *) &cmd->addr;
- if (cmd->reserved || !cmd->addr_size || (cmd->addr_size != rdma_addr_size(addr)))
+ if (!cmd->addr_size || (cmd->addr_size != rdma_addr_size(addr)))
+ return -EINVAL;
+
+ if (cmd->join_flags == RDMA_MC_JOIN_FLAG_FULLMEMBER)
+ join_state = BIT(FULLMEMBER_JOIN);
+ else if (cmd->join_flags == RDMA_MC_JOIN_FLAG_SENDONLY_FULLMEMBER)
+ join_state = BIT(SENDONLY_FULLMEMBER_JOIN);
+ else
return -EINVAL;
ctx = ucma_get_ctx(file, cmd->id);
@@ -1335,10 +1344,11 @@ static ssize_t ucma_process_join(struct ucma_file *file,
ret = -ENOMEM;
goto err1;
}
-
+ mc->join_state = join_state;
mc->uid = cmd->uid;
memcpy(&mc->addr, addr, cmd->addr_size);
- ret = rdma_join_multicast(ctx->cm_id, (struct sockaddr *) &mc->addr, mc);
+ ret = rdma_join_multicast(ctx->cm_id, (struct sockaddr *)&mc->addr,
+ join_state, mc);
if (ret)
goto err2;
@@ -1382,7 +1392,7 @@ static ssize_t ucma_join_ip_multicast(struct ucma_file *file,
join_cmd.uid = cmd.uid;
join_cmd.id = cmd.id;
join_cmd.addr_size = rdma_addr_size((struct sockaddr *) &cmd.addr);
- join_cmd.reserved = 0;
+ join_cmd.join_flags = RDMA_MC_JOIN_FLAG_FULLMEMBER;
memcpy(&join_cmd.addr, &cmd.addr, join_cmd.addr_size);
return ucma_process_join(file, &join_cmd, out_len);
diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h
index 612ccfd39bf9..df26a741cda6 100644
--- a/drivers/infiniband/core/uverbs.h
+++ b/drivers/infiniband/core/uverbs.h
@@ -116,6 +116,7 @@ struct ib_uverbs_event_file {
struct ib_uverbs_file {
struct kref ref;
struct mutex mutex;
+ struct mutex cleanup_mutex; /* protect cleanup */
struct ib_uverbs_device *device;
struct ib_ucontext *ucontext;
struct ib_event_handler event_handler;
@@ -162,6 +163,10 @@ struct ib_uqp_object {
struct ib_uxrcd_object *uxrcd;
};
+struct ib_uwq_object {
+ struct ib_uevent_object uevent;
+};
+
struct ib_ucq_object {
struct ib_uobject uobject;
struct ib_uverbs_file *uverbs_file;
@@ -181,6 +186,8 @@ extern struct idr ib_uverbs_qp_idr;
extern struct idr ib_uverbs_srq_idr;
extern struct idr ib_uverbs_xrcd_idr;
extern struct idr ib_uverbs_rule_idr;
+extern struct idr ib_uverbs_wq_idr;
+extern struct idr ib_uverbs_rwq_ind_tbl_idr;
void idr_remove_uobj(struct idr *idp, struct ib_uobject *uobj);
@@ -199,6 +206,7 @@ void ib_uverbs_release_uevent(struct ib_uverbs_file *file,
void ib_uverbs_comp_handler(struct ib_cq *cq, void *cq_context);
void ib_uverbs_cq_event_handler(struct ib_event *event, void *context_ptr);
void ib_uverbs_qp_event_handler(struct ib_event *event, void *context_ptr);
+void ib_uverbs_wq_event_handler(struct ib_event *event, void *context_ptr);
void ib_uverbs_srq_event_handler(struct ib_event *event, void *context_ptr);
void ib_uverbs_event_handler(struct ib_event_handler *handler,
struct ib_event *event);
@@ -219,6 +227,7 @@ struct ib_uverbs_flow_spec {
struct ib_uverbs_flow_spec_eth eth;
struct ib_uverbs_flow_spec_ipv4 ipv4;
struct ib_uverbs_flow_spec_tcp_udp tcp_udp;
+ struct ib_uverbs_flow_spec_ipv6 ipv6;
};
};
@@ -275,5 +284,10 @@ IB_UVERBS_DECLARE_EX_CMD(destroy_flow);
IB_UVERBS_DECLARE_EX_CMD(query_device);
IB_UVERBS_DECLARE_EX_CMD(create_cq);
IB_UVERBS_DECLARE_EX_CMD(create_qp);
+IB_UVERBS_DECLARE_EX_CMD(create_wq);
+IB_UVERBS_DECLARE_EX_CMD(modify_wq);
+IB_UVERBS_DECLARE_EX_CMD(destroy_wq);
+IB_UVERBS_DECLARE_EX_CMD(create_rwq_ind_table);
+IB_UVERBS_DECLARE_EX_CMD(destroy_rwq_ind_table);
#endif /* UVERBS_H */
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 825021d1008b..f6647318138d 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -57,6 +57,8 @@ static struct uverbs_lock_class ah_lock_class = { .name = "AH-uobj" };
static struct uverbs_lock_class srq_lock_class = { .name = "SRQ-uobj" };
static struct uverbs_lock_class xrcd_lock_class = { .name = "XRCD-uobj" };
static struct uverbs_lock_class rule_lock_class = { .name = "RULE-uobj" };
+static struct uverbs_lock_class wq_lock_class = { .name = "WQ-uobj" };
+static struct uverbs_lock_class rwq_ind_table_lock_class = { .name = "IND_TBL-uobj" };
/*
* The ib_uobject locking scheme is as follows:
@@ -243,6 +245,27 @@ static struct ib_qp *idr_read_qp(int qp_handle, struct ib_ucontext *context)
return idr_read_obj(&ib_uverbs_qp_idr, qp_handle, context, 0);
}
+static struct ib_wq *idr_read_wq(int wq_handle, struct ib_ucontext *context)
+{
+ return idr_read_obj(&ib_uverbs_wq_idr, wq_handle, context, 0);
+}
+
+static void put_wq_read(struct ib_wq *wq)
+{
+ put_uobj_read(wq->uobject);
+}
+
+static struct ib_rwq_ind_table *idr_read_rwq_indirection_table(int ind_table_handle,
+ struct ib_ucontext *context)
+{
+ return idr_read_obj(&ib_uverbs_rwq_ind_tbl_idr, ind_table_handle, context, 0);
+}
+
+static void put_rwq_indirection_table_read(struct ib_rwq_ind_table *ind_table)
+{
+ put_uobj_read(ind_table->uobject);
+}
+
static struct ib_qp *idr_write_qp(int qp_handle, struct ib_ucontext *context)
{
struct ib_uobject *uobj;
@@ -326,6 +349,8 @@ ssize_t ib_uverbs_get_context(struct ib_uverbs_file *file,
INIT_LIST_HEAD(&ucontext->qp_list);
INIT_LIST_HEAD(&ucontext->srq_list);
INIT_LIST_HEAD(&ucontext->ah_list);
+ INIT_LIST_HEAD(&ucontext->wq_list);
+ INIT_LIST_HEAD(&ucontext->rwq_ind_tbl_list);
INIT_LIST_HEAD(&ucontext->xrcd_list);
INIT_LIST_HEAD(&ucontext->rule_list);
rcu_read_lock();
@@ -1750,6 +1775,8 @@ static int create_qp(struct ib_uverbs_file *file,
struct ib_qp_init_attr attr = {};
struct ib_uverbs_ex_create_qp_resp resp;
int ret;
+ struct ib_rwq_ind_table *ind_tbl = NULL;
+ bool has_sq = true;
if (cmd->qp_type == IB_QPT_RAW_PACKET && !capable(CAP_NET_RAW))
return -EPERM;
@@ -1761,6 +1788,32 @@ static int create_qp(struct ib_uverbs_file *file,
init_uobj(&obj->uevent.uobject, cmd->user_handle, file->ucontext,
&qp_lock_class);
down_write(&obj->uevent.uobject.mutex);
+ if (cmd_sz >= offsetof(typeof(*cmd), rwq_ind_tbl_handle) +
+ sizeof(cmd->rwq_ind_tbl_handle) &&
+ (cmd->comp_mask & IB_UVERBS_CREATE_QP_MASK_IND_TABLE)) {
+ ind_tbl = idr_read_rwq_indirection_table(cmd->rwq_ind_tbl_handle,
+ file->ucontext);
+ if (!ind_tbl) {
+ ret = -EINVAL;
+ goto err_put;
+ }
+
+ attr.rwq_ind_tbl = ind_tbl;
+ }
+
+ if ((cmd_sz >= offsetof(typeof(*cmd), reserved1) +
+ sizeof(cmd->reserved1)) && cmd->reserved1) {
+ ret = -EOPNOTSUPP;
+ goto err_put;
+ }
+
+ if (ind_tbl && (cmd->max_recv_wr || cmd->max_recv_sge || cmd->is_srq)) {
+ ret = -EINVAL;
+ goto err_put;
+ }
+
+ if (ind_tbl && !cmd->max_send_wr)
+ has_sq = false;
if (cmd->qp_type == IB_QPT_XRC_TGT) {
xrcd = idr_read_xrcd(cmd->pd_handle, file->ucontext,
@@ -1784,20 +1837,24 @@ static int create_qp(struct ib_uverbs_file *file,
}
}
- if (cmd->recv_cq_handle != cmd->send_cq_handle) {
- rcq = idr_read_cq(cmd->recv_cq_handle,
- file->ucontext, 0);
- if (!rcq) {
- ret = -EINVAL;
- goto err_put;
+ if (!ind_tbl) {
+ if (cmd->recv_cq_handle != cmd->send_cq_handle) {
+ rcq = idr_read_cq(cmd->recv_cq_handle,
+ file->ucontext, 0);
+ if (!rcq) {
+ ret = -EINVAL;
+ goto err_put;
+ }
}
}
}
- scq = idr_read_cq(cmd->send_cq_handle, file->ucontext, !!rcq);
- rcq = rcq ?: scq;
+ if (has_sq)
+ scq = idr_read_cq(cmd->send_cq_handle, file->ucontext, !!rcq);
+ if (!ind_tbl)
+ rcq = rcq ?: scq;
pd = idr_read_pd(cmd->pd_handle, file->ucontext);
- if (!pd || !scq) {
+ if (!pd || (!scq && has_sq)) {
ret = -EINVAL;
goto err_put;
}
@@ -1864,16 +1921,20 @@ static int create_qp(struct ib_uverbs_file *file,
qp->send_cq = attr.send_cq;
qp->recv_cq = attr.recv_cq;
qp->srq = attr.srq;
+ qp->rwq_ind_tbl = ind_tbl;
qp->event_handler = attr.event_handler;
qp->qp_context = attr.qp_context;
qp->qp_type = attr.qp_type;
atomic_set(&qp->usecnt, 0);
atomic_inc(&pd->usecnt);
- atomic_inc(&attr.send_cq->usecnt);
+ if (attr.send_cq)
+ atomic_inc(&attr.send_cq->usecnt);
if (attr.recv_cq)
atomic_inc(&attr.recv_cq->usecnt);
if (attr.srq)
atomic_inc(&attr.srq->usecnt);
+ if (ind_tbl)
+ atomic_inc(&ind_tbl->usecnt);
}
qp->uobject = &obj->uevent.uobject;
@@ -1913,6 +1974,8 @@ static int create_qp(struct ib_uverbs_file *file,
put_cq_read(rcq);
if (srq)
put_srq_read(srq);
+ if (ind_tbl)
+ put_rwq_indirection_table_read(ind_tbl);
mutex_lock(&file->mutex);
list_add_tail(&obj->uevent.uobject.list, &file->ucontext->qp_list);
@@ -1940,6 +2003,8 @@ err_put:
put_cq_read(rcq);
if (srq)
put_srq_read(srq);
+ if (ind_tbl)
+ put_rwq_indirection_table_read(ind_tbl);
put_uobj_write(&obj->uevent.uobject);
return ret;
@@ -2033,7 +2098,7 @@ int ib_uverbs_ex_create_qp(struct ib_uverbs_file *file,
if (err)
return err;
- if (cmd.comp_mask)
+ if (cmd.comp_mask & ~IB_UVERBS_CREATE_QP_SUP_COMP_MASK)
return -EINVAL;
if (cmd.reserved)
@@ -3040,6 +3105,15 @@ static int kern_spec_to_ib_spec(struct ib_uverbs_flow_spec *kern_spec,
memcpy(&ib_spec->ipv4.mask, &kern_spec->ipv4.mask,
sizeof(struct ib_flow_ipv4_filter));
break;
+ case IB_FLOW_SPEC_IPV6:
+ ib_spec->ipv6.size = sizeof(struct ib_flow_spec_ipv6);
+ if (ib_spec->ipv6.size != kern_spec->ipv6.size)
+ return -EINVAL;
+ memcpy(&ib_spec->ipv6.val, &kern_spec->ipv6.val,
+ sizeof(struct ib_flow_ipv6_filter));
+ memcpy(&ib_spec->ipv6.mask, &kern_spec->ipv6.mask,
+ sizeof(struct ib_flow_ipv6_filter));
+ break;
case IB_FLOW_SPEC_TCP:
case IB_FLOW_SPEC_UDP:
ib_spec->tcp_udp.size = sizeof(struct ib_flow_spec_tcp_udp);
@@ -3056,6 +3130,445 @@ static int kern_spec_to_ib_spec(struct ib_uverbs_flow_spec *kern_spec,
return 0;
}
+int ib_uverbs_ex_create_wq(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
+ struct ib_udata *ucore,
+ struct ib_udata *uhw)
+{
+ struct ib_uverbs_ex_create_wq cmd = {};
+ struct ib_uverbs_ex_create_wq_resp resp = {};
+ struct ib_uwq_object *obj;
+ int err = 0;
+ struct ib_cq *cq;
+ struct ib_pd *pd;
+ struct ib_wq *wq;
+ struct ib_wq_init_attr wq_init_attr = {};
+ size_t required_cmd_sz;
+ size_t required_resp_len;
+
+ required_cmd_sz = offsetof(typeof(cmd), max_sge) + sizeof(cmd.max_sge);
+ required_resp_len = offsetof(typeof(resp), wqn) + sizeof(resp.wqn);
+
+ if (ucore->inlen < required_cmd_sz)
+ return -EINVAL;
+
+ if (ucore->outlen < required_resp_len)
+ return -ENOSPC;
+
+ if (ucore->inlen > sizeof(cmd) &&
+ !ib_is_udata_cleared(ucore, sizeof(cmd),
+ ucore->inlen - sizeof(cmd)))
+ return -EOPNOTSUPP;
+
+ err = ib_copy_from_udata(&cmd, ucore, min(sizeof(cmd), ucore->inlen));
+ if (err)
+ return err;
+
+ if (cmd.comp_mask)
+ return -EOPNOTSUPP;
+
+ obj = kmalloc(sizeof(*obj), GFP_KERNEL);
+ if (!obj)
+ return -ENOMEM;
+
+ init_uobj(&obj->uevent.uobject, cmd.user_handle, file->ucontext,
+ &wq_lock_class);
+ down_write(&obj->uevent.uobject.mutex);
+ pd = idr_read_pd(cmd.pd_handle, file->ucontext);
+ if (!pd) {
+ err = -EINVAL;
+ goto err_uobj;
+ }
+
+ cq = idr_read_cq(cmd.cq_handle, file->ucontext, 0);
+ if (!cq) {
+ err = -EINVAL;
+ goto err_put_pd;
+ }
+
+ wq_init_attr.cq = cq;
+ wq_init_attr.max_sge = cmd.max_sge;
+ wq_init_attr.max_wr = cmd.max_wr;
+ wq_init_attr.wq_context = file;
+ wq_init_attr.wq_type = cmd.wq_type;
+ wq_init_attr.event_handler = ib_uverbs_wq_event_handler;
+ obj->uevent.events_reported = 0;
+ INIT_LIST_HEAD(&obj->uevent.event_list);
+ wq = pd->device->create_wq(pd, &wq_init_attr, uhw);
+ if (IS_ERR(wq)) {
+ err = PTR_ERR(wq);
+ goto err_put_cq;
+ }
+
+ wq->uobject = &obj->uevent.uobject;
+ obj->uevent.uobject.object = wq;
+ wq->wq_type = wq_init_attr.wq_type;
+ wq->cq = cq;
+ wq->pd = pd;
+ wq->device = pd->device;
+ wq->wq_context = wq_init_attr.wq_context;
+ atomic_set(&wq->usecnt, 0);
+ atomic_inc(&pd->usecnt);
+ atomic_inc(&cq->usecnt);
+ wq->uobject = &obj->uevent.uobject;
+ obj->uevent.uobject.object = wq;
+ err = idr_add_uobj(&ib_uverbs_wq_idr, &obj->uevent.uobject);
+ if (err)
+ goto destroy_wq;
+
+ memset(&resp, 0, sizeof(resp));
+ resp.wq_handle = obj->uevent.uobject.id;
+ resp.max_sge = wq_init_attr.max_sge;
+ resp.max_wr = wq_init_attr.max_wr;
+ resp.wqn = wq->wq_num;
+ resp.response_length = required_resp_len;
+ err = ib_copy_to_udata(ucore,
+ &resp, resp.response_length);
+ if (err)
+ goto err_copy;
+
+ put_pd_read(pd);
+ put_cq_read(cq);
+
+ mutex_lock(&file->mutex);
+ list_add_tail(&obj->uevent.uobject.list, &file->ucontext->wq_list);
+ mutex_unlock(&file->mutex);
+
+ obj->uevent.uobject.live = 1;
+ up_write(&obj->uevent.uobject.mutex);
+ return 0;
+
+err_copy:
+ idr_remove_uobj(&ib_uverbs_wq_idr, &obj->uevent.uobject);
+destroy_wq:
+ ib_destroy_wq(wq);
+err_put_cq:
+ put_cq_read(cq);
+err_put_pd:
+ put_pd_read(pd);
+err_uobj:
+ put_uobj_write(&obj->uevent.uobject);
+
+ return err;
+}
+
+int ib_uverbs_ex_destroy_wq(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
+ struct ib_udata *ucore,
+ struct ib_udata *uhw)
+{
+ struct ib_uverbs_ex_destroy_wq cmd = {};
+ struct ib_uverbs_ex_destroy_wq_resp resp = {};
+ struct ib_wq *wq;
+ struct ib_uobject *uobj;
+ struct ib_uwq_object *obj;
+ size_t required_cmd_sz;
+ size_t required_resp_len;
+ int ret;
+
+ required_cmd_sz = offsetof(typeof(cmd), wq_handle) + sizeof(cmd.wq_handle);
+ required_resp_len = offsetof(typeof(resp), reserved) + sizeof(resp.reserved);
+
+ if (ucore->inlen < required_cmd_sz)
+ return -EINVAL;
+
+ if (ucore->outlen < required_resp_len)
+ return -ENOSPC;
+
+ if (ucore->inlen > sizeof(cmd) &&
+ !ib_is_udata_cleared(ucore, sizeof(cmd),
+ ucore->inlen - sizeof(cmd)))
+ return -EOPNOTSUPP;
+
+ ret = ib_copy_from_udata(&cmd, ucore, min(sizeof(cmd), ucore->inlen));
+ if (ret)
+ return ret;
+
+ if (cmd.comp_mask)
+ return -EOPNOTSUPP;
+
+ resp.response_length = required_resp_len;
+ uobj = idr_write_uobj(&ib_uverbs_wq_idr, cmd.wq_handle,
+ file->ucontext);
+ if (!uobj)
+ return -EINVAL;
+
+ wq = uobj->object;
+ obj = container_of(uobj, struct ib_uwq_object, uevent.uobject);
+ ret = ib_destroy_wq(wq);
+ if (!ret)
+ uobj->live = 0;
+
+ put_uobj_write(uobj);
+ if (ret)
+ return ret;
+
+ idr_remove_uobj(&ib_uverbs_wq_idr, uobj);
+
+ mutex_lock(&file->mutex);
+ list_del(&uobj->list);
+ mutex_unlock(&file->mutex);
+
+ ib_uverbs_release_uevent(file, &obj->uevent);
+ resp.events_reported = obj->uevent.events_reported;
+ put_uobj(uobj);
+
+ ret = ib_copy_to_udata(ucore, &resp, resp.response_length);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+int ib_uverbs_ex_modify_wq(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
+ struct ib_udata *ucore,
+ struct ib_udata *uhw)
+{
+ struct ib_uverbs_ex_modify_wq cmd = {};
+ struct ib_wq *wq;
+ struct ib_wq_attr wq_attr = {};
+ size_t required_cmd_sz;
+ int ret;
+
+ required_cmd_sz = offsetof(typeof(cmd), curr_wq_state) + sizeof(cmd.curr_wq_state);
+ if (ucore->inlen < required_cmd_sz)
+ return -EINVAL;
+
+ if (ucore->inlen > sizeof(cmd) &&
+ !ib_is_udata_cleared(ucore, sizeof(cmd),
+ ucore->inlen - sizeof(cmd)))
+ return -EOPNOTSUPP;
+
+ ret = ib_copy_from_udata(&cmd, ucore, min(sizeof(cmd), ucore->inlen));
+ if (ret)
+ return ret;
+
+ if (!cmd.attr_mask)
+ return -EINVAL;
+
+ if (cmd.attr_mask > (IB_WQ_STATE | IB_WQ_CUR_STATE))
+ return -EINVAL;
+
+ wq = idr_read_wq(cmd.wq_handle, file->ucontext);
+ if (!wq)
+ return -EINVAL;
+
+ wq_attr.curr_wq_state = cmd.curr_wq_state;
+ wq_attr.wq_state = cmd.wq_state;
+ ret = wq->device->modify_wq(wq, &wq_attr, cmd.attr_mask, uhw);
+ put_wq_read(wq);
+ return ret;
+}
+
+int ib_uverbs_ex_create_rwq_ind_table(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
+ struct ib_udata *ucore,
+ struct ib_udata *uhw)
+{
+ struct ib_uverbs_ex_create_rwq_ind_table cmd = {};
+ struct ib_uverbs_ex_create_rwq_ind_table_resp resp = {};
+ struct ib_uobject *uobj;
+ int err = 0;
+ struct ib_rwq_ind_table_init_attr init_attr = {};
+ struct ib_rwq_ind_table *rwq_ind_tbl;
+ struct ib_wq **wqs = NULL;
+ u32 *wqs_handles = NULL;
+ struct ib_wq *wq = NULL;
+ int i, j, num_read_wqs;
+ u32 num_wq_handles;
+ u32 expected_in_size;
+ size_t required_cmd_sz_header;
+ size_t required_resp_len;
+
+ required_cmd_sz_header = offsetof(typeof(cmd), log_ind_tbl_size) + sizeof(cmd.log_ind_tbl_size);
+ required_resp_len = offsetof(typeof(resp), ind_tbl_num) + sizeof(resp.ind_tbl_num);
+
+ if (ucore->inlen < required_cmd_sz_header)
+ return -EINVAL;
+
+ if (ucore->outlen < required_resp_len)
+ return -ENOSPC;
+
+ err = ib_copy_from_udata(&cmd, ucore, required_cmd_sz_header);
+ if (err)
+ return err;
+
+ ucore->inbuf += required_cmd_sz_header;
+ ucore->inlen -= required_cmd_sz_header;
+
+ if (cmd.comp_mask)
+ return -EOPNOTSUPP;
+
+ if (cmd.log_ind_tbl_size > IB_USER_VERBS_MAX_LOG_IND_TBL_SIZE)
+ return -EINVAL;
+
+ num_wq_handles = 1 << cmd.log_ind_tbl_size;
+ expected_in_size = num_wq_handles * sizeof(__u32);
+ if (num_wq_handles == 1)
+ /* input size for wq handles is u64 aligned */
+ expected_in_size += sizeof(__u32);
+
+ if (ucore->inlen < expected_in_size)
+ return -EINVAL;
+
+ if (ucore->inlen > expected_in_size &&
+ !ib_is_udata_cleared(ucore, expected_in_size,
+ ucore->inlen - expected_in_size))
+ return -EOPNOTSUPP;
+
+ wqs_handles = kcalloc(num_wq_handles, sizeof(*wqs_handles),
+ GFP_KERNEL);
+ if (!wqs_handles)
+ return -ENOMEM;
+
+ err = ib_copy_from_udata(wqs_handles, ucore,
+ num_wq_handles * sizeof(__u32));
+ if (err)
+ goto err_free;
+
+ wqs = kcalloc(num_wq_handles, sizeof(*wqs), GFP_KERNEL);
+ if (!wqs) {
+ err = -ENOMEM;
+ goto err_free;
+ }
+
+ for (num_read_wqs = 0; num_read_wqs < num_wq_handles;
+ num_read_wqs++) {
+ wq = idr_read_wq(wqs_handles[num_read_wqs], file->ucontext);
+ if (!wq) {
+ err = -EINVAL;
+ goto put_wqs;
+ }
+
+ wqs[num_read_wqs] = wq;
+ }
+
+ uobj = kmalloc(sizeof(*uobj), GFP_KERNEL);
+ if (!uobj) {
+ err = -ENOMEM;
+ goto put_wqs;
+ }
+
+ init_uobj(uobj, 0, file->ucontext, &rwq_ind_table_lock_class);
+ down_write(&uobj->mutex);
+ init_attr.log_ind_tbl_size = cmd.log_ind_tbl_size;
+ init_attr.ind_tbl = wqs;
+ rwq_ind_tbl = ib_dev->create_rwq_ind_table(ib_dev, &init_attr, uhw);
+
+ if (IS_ERR(rwq_ind_tbl)) {
+ err = PTR_ERR(rwq_ind_tbl);
+ goto err_uobj;
+ }
+
+ rwq_ind_tbl->ind_tbl = wqs;
+ rwq_ind_tbl->log_ind_tbl_size = init_attr.log_ind_tbl_size;
+ rwq_ind_tbl->uobject = uobj;
+ uobj->object = rwq_ind_tbl;
+ rwq_ind_tbl->device = ib_dev;
+ atomic_set(&rwq_ind_tbl->usecnt, 0);
+
+ for (i = 0; i < num_wq_handles; i++)
+ atomic_inc(&wqs[i]->usecnt);
+
+ err = idr_add_uobj(&ib_uverbs_rwq_ind_tbl_idr, uobj);
+ if (err)
+ goto destroy_ind_tbl;
+
+ resp.ind_tbl_handle = uobj->id;
+ resp.ind_tbl_num = rwq_ind_tbl->ind_tbl_num;
+ resp.response_length = required_resp_len;
+
+ err = ib_copy_to_udata(ucore,
+ &resp, resp.response_length);
+ if (err)
+ goto err_copy;
+
+ kfree(wqs_handles);
+
+ for (j = 0; j < num_read_wqs; j++)
+ put_wq_read(wqs[j]);
+
+ mutex_lock(&file->mutex);
+ list_add_tail(&uobj->list, &file->ucontext->rwq_ind_tbl_list);
+ mutex_unlock(&file->mutex);
+
+ uobj->live = 1;
+
+ up_write(&uobj->mutex);
+ return 0;
+
+err_copy:
+ idr_remove_uobj(&ib_uverbs_rwq_ind_tbl_idr, uobj);
+destroy_ind_tbl:
+ ib_destroy_rwq_ind_table(rwq_ind_tbl);
+err_uobj:
+ put_uobj_write(uobj);
+put_wqs:
+ for (j = 0; j < num_read_wqs; j++)
+ put_wq_read(wqs[j]);
+err_free:
+ kfree(wqs_handles);
+ kfree(wqs);
+ return err;
+}
+
+int ib_uverbs_ex_destroy_rwq_ind_table(struct ib_uverbs_file *file,
+ struct ib_device *ib_dev,
+ struct ib_udata *ucore,
+ struct ib_udata *uhw)
+{
+ struct ib_uverbs_ex_destroy_rwq_ind_table cmd = {};
+ struct ib_rwq_ind_table *rwq_ind_tbl;
+ struct ib_uobject *uobj;
+ int ret;
+ struct ib_wq **ind_tbl;
+ size_t required_cmd_sz;
+
+ required_cmd_sz = offsetof(typeof(cmd), ind_tbl_handle) + sizeof(cmd.ind_tbl_handle);
+
+ if (ucore->inlen < required_cmd_sz)
+ return -EINVAL;
+
+ if (ucore->inlen > sizeof(cmd) &&
+ !ib_is_udata_cleared(ucore, sizeof(cmd),
+ ucore->inlen - sizeof(cmd)))
+ return -EOPNOTSUPP;
+
+ ret = ib_copy_from_udata(&cmd, ucore, min(sizeof(cmd), ucore->inlen));
+ if (ret)
+ return ret;
+
+ if (cmd.comp_mask)
+ return -EOPNOTSUPP;
+
+ uobj = idr_write_uobj(&ib_uverbs_rwq_ind_tbl_idr, cmd.ind_tbl_handle,
+ file->ucontext);
+ if (!uobj)
+ return -EINVAL;
+ rwq_ind_tbl = uobj->object;
+ ind_tbl = rwq_ind_tbl->ind_tbl;
+
+ ret = ib_destroy_rwq_ind_table(rwq_ind_tbl);
+ if (!ret)
+ uobj->live = 0;
+
+ put_uobj_write(uobj);
+
+ if (ret)
+ return ret;
+
+ idr_remove_uobj(&ib_uverbs_rwq_ind_tbl_idr, uobj);
+
+ mutex_lock(&file->mutex);
+ list_del(&uobj->list);
+ mutex_unlock(&file->mutex);
+
+ put_uobj(uobj);
+ kfree(ind_tbl);
+ return ret;
+}
+
int ib_uverbs_ex_create_flow(struct ib_uverbs_file *file,
struct ib_device *ib_dev,
struct ib_udata *ucore,
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index 31f422a70623..0012fa58c105 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -76,6 +76,8 @@ DEFINE_IDR(ib_uverbs_qp_idr);
DEFINE_IDR(ib_uverbs_srq_idr);
DEFINE_IDR(ib_uverbs_xrcd_idr);
DEFINE_IDR(ib_uverbs_rule_idr);
+DEFINE_IDR(ib_uverbs_wq_idr);
+DEFINE_IDR(ib_uverbs_rwq_ind_tbl_idr);
static DEFINE_SPINLOCK(map_lock);
static DECLARE_BITMAP(dev_map, IB_UVERBS_MAX_DEVICES);
@@ -130,6 +132,11 @@ static int (*uverbs_ex_cmd_table[])(struct ib_uverbs_file *file,
[IB_USER_VERBS_EX_CMD_QUERY_DEVICE] = ib_uverbs_ex_query_device,
[IB_USER_VERBS_EX_CMD_CREATE_CQ] = ib_uverbs_ex_create_cq,
[IB_USER_VERBS_EX_CMD_CREATE_QP] = ib_uverbs_ex_create_qp,
+ [IB_USER_VERBS_EX_CMD_CREATE_WQ] = ib_uverbs_ex_create_wq,
+ [IB_USER_VERBS_EX_CMD_MODIFY_WQ] = ib_uverbs_ex_modify_wq,
+ [IB_USER_VERBS_EX_CMD_DESTROY_WQ] = ib_uverbs_ex_destroy_wq,
+ [IB_USER_VERBS_EX_CMD_CREATE_RWQ_IND_TBL] = ib_uverbs_ex_create_rwq_ind_table,
+ [IB_USER_VERBS_EX_CMD_DESTROY_RWQ_IND_TBL] = ib_uverbs_ex_destroy_rwq_ind_table,
};
static void ib_uverbs_add_one(struct ib_device *device);
@@ -265,6 +272,27 @@ static int ib_uverbs_cleanup_ucontext(struct ib_uverbs_file *file,
kfree(uqp);
}
+ list_for_each_entry_safe(uobj, tmp, &context->rwq_ind_tbl_list, list) {
+ struct ib_rwq_ind_table *rwq_ind_tbl = uobj->object;
+ struct ib_wq **ind_tbl = rwq_ind_tbl->ind_tbl;
+
+ idr_remove_uobj(&ib_uverbs_rwq_ind_tbl_idr, uobj);
+ ib_destroy_rwq_ind_table(rwq_ind_tbl);
+ kfree(ind_tbl);
+ kfree(uobj);
+ }
+
+ list_for_each_entry_safe(uobj, tmp, &context->wq_list, list) {
+ struct ib_wq *wq = uobj->object;
+ struct ib_uwq_object *uwq =
+ container_of(uobj, struct ib_uwq_object, uevent.uobject);
+
+ idr_remove_uobj(&ib_uverbs_wq_idr, uobj);
+ ib_destroy_wq(wq);
+ ib_uverbs_release_uevent(file, &uwq->uevent);
+ kfree(uwq);
+ }
+
list_for_each_entry_safe(uobj, tmp, &context->srq_list, list) {
struct ib_srq *srq = uobj->object;
struct ib_uevent_object *uevent =
@@ -568,6 +596,16 @@ void ib_uverbs_qp_event_handler(struct ib_event *event, void *context_ptr)
&uobj->events_reported);
}
+void ib_uverbs_wq_event_handler(struct ib_event *event, void *context_ptr)
+{
+ struct ib_uevent_object *uobj = container_of(event->element.wq->uobject,
+ struct ib_uevent_object, uobject);
+
+ ib_uverbs_async_handler(context_ptr, uobj->uobject.user_handle,
+ event->event, &uobj->event_list,
+ &uobj->events_reported);
+}
+
void ib_uverbs_srq_event_handler(struct ib_event *event, void *context_ptr)
{
struct ib_uevent_object *uobj;
@@ -931,6 +969,7 @@ static int ib_uverbs_open(struct inode *inode, struct file *filp)
file->async_file = NULL;
kref_init(&file->ref);
mutex_init(&file->mutex);
+ mutex_init(&file->cleanup_mutex);
filp->private_data = file;
kobject_get(&dev->kobj);
@@ -956,18 +995,20 @@ static int ib_uverbs_close(struct inode *inode, struct file *filp)
{
struct ib_uverbs_file *file = filp->private_data;
struct ib_uverbs_device *dev = file->device;
- struct ib_ucontext *ucontext = NULL;
+
+ mutex_lock(&file->cleanup_mutex);
+ if (file->ucontext) {
+ ib_uverbs_cleanup_ucontext(file, file->ucontext);
+ file->ucontext = NULL;
+ }
+ mutex_unlock(&file->cleanup_mutex);
mutex_lock(&file->device->lists_mutex);
- ucontext = file->ucontext;
- file->ucontext = NULL;
if (!file->is_closed) {
list_del(&file->list);
file->is_closed = 1;
}
mutex_unlock(&file->device->lists_mutex);
- if (ucontext)
- ib_uverbs_cleanup_ucontext(file, ucontext);
if (file->async_file)
kref_put(&file->async_file->ref, ib_uverbs_release_event_file);
@@ -1181,22 +1222,30 @@ static void ib_uverbs_free_hw_resources(struct ib_uverbs_device *uverbs_dev,
mutex_lock(&uverbs_dev->lists_mutex);
while (!list_empty(&uverbs_dev->uverbs_file_list)) {
struct ib_ucontext *ucontext;
-
file = list_first_entry(&uverbs_dev->uverbs_file_list,
struct ib_uverbs_file, list);
file->is_closed = 1;
- ucontext = file->ucontext;
list_del(&file->list);
- file->ucontext = NULL;
kref_get(&file->ref);
mutex_unlock(&uverbs_dev->lists_mutex);
- /* We must release the mutex before going ahead and calling
- * disassociate_ucontext. disassociate_ucontext might end up
- * indirectly calling uverbs_close, for example due to freeing
- * the resources (e.g mmput).
- */
+
ib_uverbs_event_handler(&file->event_handler, &event);
+
+ mutex_lock(&file->cleanup_mutex);
+ ucontext = file->ucontext;
+ file->ucontext = NULL;
+ mutex_unlock(&file->cleanup_mutex);
+
+ /* At this point ib_uverbs_close cannot be running
+ * ib_uverbs_cleanup_ucontext
+ */
if (ucontext) {
+ /* We must release the mutex before going ahead and
+ * calling disassociate_ucontext. disassociate_ucontext
+ * might end up indirectly calling uverbs_close,
+ * for example due to freeing the resources
+ * (e.g mmput).
+ */
ib_dev->disassociate_ucontext(ucontext);
ib_uverbs_cleanup_ucontext(file, ucontext);
}
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 6298f54b4137..2e813edcddab 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -758,6 +758,12 @@ struct ib_qp *ib_create_qp(struct ib_pd *pd,
struct ib_qp *qp;
int ret;
+ if (qp_init_attr->rwq_ind_tbl &&
+ (qp_init_attr->recv_cq ||
+ qp_init_attr->srq || qp_init_attr->cap.max_recv_wr ||
+ qp_init_attr->cap.max_recv_sge))
+ return ERR_PTR(-EINVAL);
+
/*
* If the callers is using the RDMA API calculate the resources
* needed for the RDMA READ/WRITE operations.
@@ -775,6 +781,7 @@ struct ib_qp *ib_create_qp(struct ib_pd *pd,
qp->real_qp = qp;
qp->uobject = NULL;
qp->qp_type = qp_init_attr->qp_type;
+ qp->rwq_ind_tbl = qp_init_attr->rwq_ind_tbl;
atomic_set(&qp->usecnt, 0);
qp->mrs_used = 0;
@@ -792,7 +799,8 @@ struct ib_qp *ib_create_qp(struct ib_pd *pd,
qp->srq = NULL;
} else {
qp->recv_cq = qp_init_attr->recv_cq;
- atomic_inc(&qp_init_attr->recv_cq->usecnt);
+ if (qp_init_attr->recv_cq)
+ atomic_inc(&qp_init_attr->recv_cq->usecnt);
qp->srq = qp_init_attr->srq;
if (qp->srq)
atomic_inc(&qp_init_attr->srq->usecnt);
@@ -803,7 +811,10 @@ struct ib_qp *ib_create_qp(struct ib_pd *pd,
qp->xrcd = NULL;
atomic_inc(&pd->usecnt);
- atomic_inc(&qp_init_attr->send_cq->usecnt);
+ if (qp_init_attr->send_cq)
+ atomic_inc(&qp_init_attr->send_cq->usecnt);
+ if (qp_init_attr->rwq_ind_tbl)
+ atomic_inc(&qp->rwq_ind_tbl->usecnt);
if (qp_init_attr->cap.max_rdma_ctxs) {
ret = rdma_rw_init_mrs(qp, qp_init_attr);
@@ -1283,6 +1294,7 @@ int ib_destroy_qp(struct ib_qp *qp)
struct ib_pd *pd;
struct ib_cq *scq, *rcq;
struct ib_srq *srq;
+ struct ib_rwq_ind_table *ind_tbl;
int ret;
WARN_ON_ONCE(qp->mrs_used > 0);
@@ -1297,6 +1309,7 @@ int ib_destroy_qp(struct ib_qp *qp)
scq = qp->send_cq;
rcq = qp->recv_cq;
srq = qp->srq;
+ ind_tbl = qp->rwq_ind_tbl;
if (!qp->uobject)
rdma_rw_cleanup_mrs(qp);
@@ -1311,6 +1324,8 @@ int ib_destroy_qp(struct ib_qp *qp)
atomic_dec(&rcq->usecnt);
if (srq)
atomic_dec(&srq->usecnt);
+ if (ind_tbl)
+ atomic_dec(&ind_tbl->usecnt);
}
return ret;
@@ -1558,6 +1573,150 @@ int ib_dealloc_xrcd(struct ib_xrcd *xrcd)
}
EXPORT_SYMBOL(ib_dealloc_xrcd);
+/**
+ * ib_create_wq - Creates a WQ associated with the specified protection
+ * domain.
+ * @pd: The protection domain associated with the WQ.
+ * @wq_init_attr: A list of initial attributes required to create the
+ * WQ. If WQ creation succeeds, then the attributes are updated to
+ * the actual capabilities of the created WQ.
+ *
+ * wq_init_attr->max_wr and wq_init_attr->max_sge determine
+ * the requested size of the WQ, and set to the actual values allocated
+ * on return.
+ * If ib_create_wq() succeeds, then max_wr and max_sge will always be
+ * at least as large as the requested values.
+ */
+struct ib_wq *ib_create_wq(struct ib_pd *pd,
+ struct ib_wq_init_attr *wq_attr)
+{
+ struct ib_wq *wq;
+
+ if (!pd->device->create_wq)
+ return ERR_PTR(-ENOSYS);
+
+ wq = pd->device->create_wq(pd, wq_attr, NULL);
+ if (!IS_ERR(wq)) {
+ wq->event_handler = wq_attr->event_handler;
+ wq->wq_context = wq_attr->wq_context;
+ wq->wq_type = wq_attr->wq_type;
+ wq->cq = wq_attr->cq;
+ wq->device = pd->device;
+ wq->pd = pd;
+ wq->uobject = NULL;
+ atomic_inc(&pd->usecnt);
+ atomic_inc(&wq_attr->cq->usecnt);
+ atomic_set(&wq->usecnt, 0);
+ }
+ return wq;
+}
+EXPORT_SYMBOL(ib_create_wq);
+
+/**
+ * ib_destroy_wq - Destroys the specified WQ.
+ * @wq: The WQ to destroy.
+ */
+int ib_destroy_wq(struct ib_wq *wq)
+{
+ int err;
+ struct ib_cq *cq = wq->cq;
+ struct ib_pd *pd = wq->pd;
+
+ if (atomic_read(&wq->usecnt))
+ return -EBUSY;
+
+ err = wq->device->destroy_wq(wq);
+ if (!err) {
+ atomic_dec(&pd->usecnt);
+ atomic_dec(&cq->usecnt);
+ }
+ return err;
+}
+EXPORT_SYMBOL(ib_destroy_wq);
+
+/**
+ * ib_modify_wq - Modifies the specified WQ.
+ * @wq: The WQ to modify.
+ * @wq_attr: On input, specifies the WQ attributes to modify.
+ * @wq_attr_mask: A bit-mask used to specify which attributes of the WQ
+ * are being modified.
+ * On output, the current values of selected WQ attributes are returned.
+ */
+int ib_modify_wq(struct ib_wq *wq, struct ib_wq_attr *wq_attr,
+ u32 wq_attr_mask)
+{
+ int err;
+
+ if (!wq->device->modify_wq)
+ return -ENOSYS;
+
+ err = wq->device->modify_wq(wq, wq_attr, wq_attr_mask, NULL);
+ return err;
+}
+EXPORT_SYMBOL(ib_modify_wq);
+
+/*
+ * ib_create_rwq_ind_table - Creates a RQ Indirection Table.
+ * @device: The device on which to create the rwq indirection table.
+ * @ib_rwq_ind_table_init_attr: A list of initial attributes required to
+ * create the Indirection Table.
+ *
+ * Note: The life time of ib_rwq_ind_table_init_attr->ind_tbl is not less
+ * than the created ib_rwq_ind_table object and the caller is responsible
+ * for its memory allocation/free.
+ */
+struct ib_rwq_ind_table *ib_create_rwq_ind_table(struct ib_device *device,
+ struct ib_rwq_ind_table_init_attr *init_attr)
+{
+ struct ib_rwq_ind_table *rwq_ind_table;
+ int i;
+ u32 table_size;
+
+ if (!device->create_rwq_ind_table)
+ return ERR_PTR(-ENOSYS);
+
+ table_size = (1 << init_attr->log_ind_tbl_size);
+ rwq_ind_table = device->create_rwq_ind_table(device,
+ init_attr, NULL);
+ if (IS_ERR(rwq_ind_table))
+ return rwq_ind_table;
+
+ rwq_ind_table->ind_tbl = init_attr->ind_tbl;
+ rwq_ind_table->log_ind_tbl_size = init_attr->log_ind_tbl_size;
+ rwq_ind_table->device = device;
+ rwq_ind_table->uobject = NULL;
+ atomic_set(&rwq_ind_table->usecnt, 0);
+
+ for (i = 0; i < table_size; i++)
+ atomic_inc(&rwq_ind_table->ind_tbl[i]->usecnt);
+
+ return rwq_ind_table;
+}
+EXPORT_SYMBOL(ib_create_rwq_ind_table);
+
+/*
+ * ib_destroy_rwq_ind_table - Destroys the specified Indirection Table.
+ * @wq_ind_table: The Indirection Table to destroy.
+*/
+int ib_destroy_rwq_ind_table(struct ib_rwq_ind_table *rwq_ind_table)
+{
+ int err, i;
+ u32 table_size = (1 << rwq_ind_table->log_ind_tbl_size);
+ struct ib_wq **ind_tbl = rwq_ind_table->ind_tbl;
+
+ if (atomic_read(&rwq_ind_table->usecnt))
+ return -EBUSY;
+
+ err = rwq_ind_table->device->destroy_rwq_ind_table(rwq_ind_table);
+ if (!err) {
+ for (i = 0; i < table_size; i++)
+ atomic_dec(&ind_tbl[i]->usecnt);
+ }
+
+ return err;
+}
+EXPORT_SYMBOL(ib_destroy_rwq_ind_table);
+
struct ib_flow *ib_create_flow(struct ib_qp *qp,
struct ib_flow_attr *flow_attr,
int domain)
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-26 08:03:53 +0300