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Third set of -rc fixes for 4.13 cycle

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- small set of miscellanous fixes
 - a reasonably sizable set of IPoIB fixes that deal with multiple long
   standing issues
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

Pull rdma fixes from Doug Ledford:
 "Third set of -rc fixes for 4.13 cycle

   - small set of miscellanous fixes

   - a reasonably sizable set of IPoIB fixes that deal with multiple
     long standing issues"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma:
  IB/hns: checking for IS_ERR() instead of NULL
  RDMA/mlx5: Fix existence check for extended address vector
  IB/uverbs: Fix device cleanup
  RDMA/uverbs: Prevent leak of reserved field
  IB/core: Fix race condition in resolving IP to MAC
  IB/ipoib: Notify on modify QP failure only when relevant
  Revert "IB/core: Allow QP state transition from reset to error"
  IB/ipoib: Remove double pointer assigning
  IB/ipoib: Clean error paths in add port
  IB/ipoib: Add get statistics support to SRIOV VF
  IB/ipoib: Add multicast packets statistics
  IB/ipoib: Set IPOIB_NEIGH_TBL_FLUSH after flushed completion initialization
  IB/ipoib: Prevent setting negative values to max_nonsrq_conn_qp
  IB/ipoib: Make sure no in-flight joins while leaving that mcast
  IB/ipoib: Use cancel_delayed_work_sync when needed
  IB/ipoib: Fix race between light events and interface restart
This commit is contained in:
Linus Torvalds 2017-08-08 11:42:33 -07:00
commit bfa738cf3d
13 changed files with 102 additions and 53 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

62
drivers/infiniband/core/addr.c
View File

@ -61,6 +61,7 @@ struct addr_req {
void (*callback)(int status, struct sockaddr *src_addr,
struct rdma_dev_addr *addr, void *context);
unsigned long timeout;
struct delayed_work work;
int status;
u32 seq;
};
@ -295,7 +296,7 @@ int rdma_translate_ip(const struct sockaddr *addr,
}
EXPORT_SYMBOL(rdma_translate_ip);
static void set_timeout(unsigned long time)
static void set_timeout(struct delayed_work *delayed_work, unsigned long time)
{
unsigned long delay;
@ -303,7 +304,7 @@ static void set_timeout(unsigned long time)
if ((long)delay < 0)
delay = 0;
mod_delayed_work(addr_wq, &work, delay);
mod_delayed_work(addr_wq, delayed_work, delay);
}
static void queue_req(struct addr_req *req)
@ -318,8 +319,7 @@ static void queue_req(struct addr_req *req)
list_add(&req->list, &temp_req->list);
if (req_list.next == &req->list)
set_timeout(req->timeout);
set_timeout(&req->work, req->timeout);
mutex_unlock(&lock);
}
@ -574,6 +574,37 @@ static int addr_resolve(struct sockaddr *src_in,
return ret;
}
static void process_one_req(struct work_struct *_work)
{
struct addr_req *req;
struct sockaddr *src_in, *dst_in;
mutex_lock(&lock);
req = container_of(_work, struct addr_req, work.work);
if (req->status == -ENODATA) {
src_in = (struct sockaddr *)&req->src_addr;
dst_in = (struct sockaddr *)&req->dst_addr;
req->status = addr_resolve(src_in, dst_in, req->addr,
true, req->seq);
if (req->status && time_after_eq(jiffies, req->timeout)) {
req->status = -ETIMEDOUT;
} else if (req->status == -ENODATA) {
/* requeue the work for retrying again */
set_timeout(&req->work, req->timeout);
mutex_unlock(&lock);
return;
}
}
list_del(&req->list);
mutex_unlock(&lock);
req->callback(req->status, (struct sockaddr *)&req->src_addr,
req->addr, req->context);
put_client(req->client);
kfree(req);
}
static void process_req(struct work_struct *work)
{
struct addr_req *req, *temp_req;
@ -591,20 +622,23 @@ static void process_req(struct work_struct *work)
true, req->seq);
if (req->status && time_after_eq(jiffies, req->timeout))
req->status = -ETIMEDOUT;
else if (req->status == -ENODATA)
else if (req->status == -ENODATA) {
set_timeout(&req->work, req->timeout);
continue;
}
}
list_move_tail(&req->list, &done_list);
}
if (!list_empty(&req_list)) {
req = list_entry(req_list.next, struct addr_req, list);
set_timeout(req->timeout);
}
mutex_unlock(&lock);
list_for_each_entry_safe(req, temp_req, &done_list, list) {
list_del(&req->list);
/* It is safe to cancel other work items from this work item
* because at a time there can be only one work item running
* with this single threaded work queue.
*/
cancel_delayed_work(&req->work);
req->callback(req->status, (struct sockaddr *) &req->src_addr,
req->addr, req->context);
put_client(req->client);
@ -647,6 +681,7 @@ int rdma_resolve_ip(struct rdma_addr_client *client,
req->context = context;
req->client = client;
atomic_inc(&client->refcount);
INIT_DELAYED_WORK(&req->work, process_one_req);
req->seq = (u32)atomic_inc_return(&ib_nl_addr_request_seq);
req->status = addr_resolve(src_in, dst_in, addr, true, req->seq);
@ -701,7 +736,7 @@ void rdma_addr_cancel(struct rdma_dev_addr *addr)
req->status = -ECANCELED;
req->timeout = jiffies;
list_move(&req->list, &req_list);
set_timeout(req->timeout);
set_timeout(&req->work, req->timeout);
break;
}
}
@ -807,9 +842,8 @@ static int netevent_callback(struct notifier_block *self, unsigned long event,
if (event == NETEVENT_NEIGH_UPDATE) {
struct neighbour *neigh = ctx;
if (neigh->nud_state & NUD_VALID) {
set_timeout(jiffies);
}
if (neigh->nud_state & NUD_VALID)
set_timeout(&work, jiffies);
}
return 0;
}
@ -820,7 +854,7 @@ static struct notifier_block nb = {
int addr_init(void)
{
addr_wq = alloc_workqueue("ib_addr", WQ_MEM_RECLAIM, 0);
addr_wq = alloc_ordered_workqueue("ib_addr", WQ_MEM_RECLAIM);
if (!addr_wq)
return -ENOMEM;

2
drivers/infiniband/core/uverbs_cmd.c
View File

@ -1153,7 +1153,7 @@ ssize_t ib_uverbs_resize_cq(struct ib_uverbs_file *file,
int out_len)
{
struct ib_uverbs_resize_cq cmd;
struct ib_uverbs_resize_cq_resp resp;
struct ib_uverbs_resize_cq_resp resp = {};
struct ib_udata udata;
struct ib_cq *cq;
int ret = -EINVAL;

3
drivers/infiniband/core/uverbs_main.c
View File

@ -250,6 +250,7 @@ void ib_uverbs_release_file(struct kref *ref)
if (atomic_dec_and_test(&file->device->refcount))
ib_uverbs_comp_dev(file->device);
kobject_put(&file->device->kobj);
kfree(file);
}
@ -917,7 +918,6 @@ err:
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;
mutex_lock(&file->cleanup_mutex);
if (file->ucontext) {
@ -939,7 +939,6 @@ static int ib_uverbs_close(struct inode *inode, struct file *filp)
ib_uverbs_release_async_event_file);
kref_put(&file->ref, ib_uverbs_release_file);
kobject_put(&dev->kobj);
return 0;
}

1
drivers/infiniband/core/verbs.c
View File

@ -895,7 +895,6 @@ static const struct {
} qp_state_table[IB_QPS_ERR + 1][IB_QPS_ERR + 1] = {
[IB_QPS_RESET] = {
[IB_QPS_RESET] = { .valid = 1 },
[IB_QPS_ERR] = { .valid = 1 },
[IB_QPS_INIT] = {
.valid = 1,
.req_param = {

2
drivers/infiniband/hw/hns/hns_roce_hw_v1.c
View File

@ -733,7 +733,7 @@ static int hns_roce_v1_rsv_lp_qp(struct hns_roce_dev *hr_dev)
continue;
free_mr->mr_free_qp[i] = hns_roce_v1_create_lp_qp(hr_dev, pd);
if (IS_ERR(free_mr->mr_free_qp[i])) {
if (!free_mr->mr_free_qp[i]) {
dev_err(dev, "Create loop qp failed!\n");
goto create_lp_qp_failed;
}

2
drivers/infiniband/hw/mlx5/odp.c
View File

@ -939,7 +939,7 @@ static int mlx5_ib_mr_initiator_pfault_handler(
if (qp->ibqp.qp_type != IB_QPT_RC) {
av = *wqe;
if (av->dqp_dct & be32_to_cpu(MLX5_WQE_AV_EXT))
if (av->dqp_dct & cpu_to_be32(MLX5_EXTENDED_UD_AV))
*wqe += sizeof(struct mlx5_av);
else
*wqe += sizeof(struct mlx5_base_av);

1
drivers/infiniband/ulp/ipoib/ipoib.h
View File

@ -336,6 +336,7 @@ struct ipoib_dev_priv {
unsigned long flags;
struct rw_semaphore vlan_rwsem;
struct mutex mcast_mutex;
struct rb_root path_tree;
struct list_head path_list;

1
drivers/infiniband/ulp/ipoib/ipoib_cm.c
View File

@ -511,7 +511,6 @@ static int ipoib_cm_rx_handler(struct ib_cm_id *cm_id,
case IB_CM_REQ_RECEIVED:
return ipoib_cm_req_handler(cm_id, event);
case IB_CM_DREQ_RECEIVED:
p = cm_id->context;
ib_send_cm_drep(cm_id, NULL, 0);
/* Fall through */
case IB_CM_REJ_RECEIVED:

3
drivers/infiniband/ulp/ipoib/ipoib_ethtool.c
View File

@ -52,7 +52,8 @@ static const struct ipoib_stats ipoib_gstrings_stats[] = {
IPOIB_NETDEV_STAT(tx_bytes),
IPOIB_NETDEV_STAT(tx_errors),
IPOIB_NETDEV_STAT(rx_dropped),
IPOIB_NETDEV_STAT(tx_dropped)
IPOIB_NETDEV_STAT(tx_dropped),
IPOIB_NETDEV_STAT(multicast),
};
#define IPOIB_GLOBAL_STATS_LEN ARRAY_SIZE(ipoib_gstrings_stats)

25
drivers/infiniband/ulp/ipoib/ipoib_ib.c
View File

@ -256,6 +256,8 @@ static void ipoib_ib_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
++dev->stats.rx_packets;
dev->stats.rx_bytes += skb->len;
if (skb->pkt_type == PACKET_MULTICAST)
dev->stats.multicast++;
skb->dev = dev;
if ((dev->features & NETIF_F_RXCSUM) &&
@ -709,6 +711,27 @@ static int recvs_pending(struct net_device *dev)
return pending;
}
static void check_qp_movement_and_print(struct ipoib_dev_priv *priv,
struct ib_qp *qp,
enum ib_qp_state new_state)
{
struct ib_qp_attr qp_attr;
struct ib_qp_init_attr query_init_attr;
int ret;
ret = ib_query_qp(qp, &qp_attr, IB_QP_STATE, &query_init_attr);
if (ret) {
ipoib_warn(priv, "%s: Failed to query QP\n", __func__);
return;
}
/* print according to the new-state and the previous state.*/
if (new_state == IB_QPS_ERR && qp_attr.qp_state == IB_QPS_RESET)
ipoib_dbg(priv, "Failed modify QP, IB_QPS_RESET to IB_QPS_ERR, acceptable\n");
else
ipoib_warn(priv, "Failed to modify QP to state: %d from state: %d\n",
new_state, qp_attr.qp_state);
}
int ipoib_ib_dev_stop_default(struct net_device *dev)
{
struct ipoib_dev_priv *priv = ipoib_priv(dev);
@ -728,7 +751,7 @@ int ipoib_ib_dev_stop_default(struct net_device *dev)
*/
qp_attr.qp_state = IB_QPS_ERR;
if (ib_modify_qp(priv->qp, &qp_attr, IB_QP_STATE))
ipoib_warn(priv, "Failed to modify QP to ERROR state\n");
check_qp_movement_and_print(priv, priv->qp, IB_QPS_ERR);
/* Wait for all sends and receives to complete */
begin = jiffies;

19
drivers/infiniband/ulp/ipoib/ipoib_main.c
View File

@ -1560,6 +1560,7 @@ static void ipoib_flush_neighs(struct ipoib_dev_priv *priv)
int i, wait_flushed = 0;
init_completion(&priv->ntbl.flushed);
set_bit(IPOIB_NEIGH_TBL_FLUSH, &priv->flags);
spin_lock_irqsave(&priv->lock, flags);
@ -1604,7 +1605,6 @@ static void ipoib_neigh_hash_uninit(struct net_device *dev)
ipoib_dbg(priv, "ipoib_neigh_hash_uninit\n");
init_completion(&priv->ntbl.deleted);
set_bit(IPOIB_NEIGH_TBL_FLUSH, &priv->flags);
/* Stop GC if called at init fail need to cancel work */
stopped = test_and_set_bit(IPOIB_STOP_NEIGH_GC, &priv->flags);
@ -1847,6 +1847,7 @@ static const struct net_device_ops ipoib_netdev_ops_vf = {
.ndo_tx_timeout = ipoib_timeout,
.ndo_set_rx_mode = ipoib_set_mcast_list,
.ndo_get_iflink = ipoib_get_iflink,
.ndo_get_stats64 = ipoib_get_stats,
};
void ipoib_setup_common(struct net_device *dev)
@ -1877,6 +1878,7 @@ static void ipoib_build_priv(struct net_device *dev)
priv->dev = dev;
spin_lock_init(&priv->lock);
init_rwsem(&priv->vlan_rwsem);
mutex_init(&priv->mcast_mutex);
INIT_LIST_HEAD(&priv->path_list);
INIT_LIST_HEAD(&priv->child_intfs);
@ -2173,14 +2175,14 @@ static struct net_device *ipoib_add_port(const char *format,
priv->dev->dev_id = port - 1;
result = ib_query_port(hca, port, &attr);
if (!result)
priv->max_ib_mtu = ib_mtu_enum_to_int(attr.max_mtu);
else {
if (result) {
printk(KERN_WARNING "%s: ib_query_port %d failed\n",
hca->name, port);
goto device_init_failed;
}
priv->max_ib_mtu = ib_mtu_enum_to_int(attr.max_mtu);
/* MTU will be reset when mcast join happens */
priv->dev->mtu = IPOIB_UD_MTU(priv->max_ib_mtu);
priv->mcast_mtu = priv->admin_mtu = priv->dev->mtu;
@ -2211,12 +2213,14 @@ static struct net_device *ipoib_add_port(const char *format,
printk(KERN_WARNING "%s: ib_query_gid port %d failed (ret = %d)\n",
hca->name, port, result);
goto device_init_failed;
} else
memcpy(priv->dev->dev_addr + 4, priv->local_gid.raw, sizeof (union ib_gid));
}
memcpy(priv->dev->dev_addr + 4, priv->local_gid.raw,
sizeof(union ib_gid));
set_bit(IPOIB_FLAG_DEV_ADDR_SET, &priv->flags);
result = ipoib_dev_init(priv->dev, hca, port);
if (result < 0) {
if (result) {
printk(KERN_WARNING "%s: failed to initialize port %d (ret = %d)\n",
hca->name, port, result);
goto device_init_failed;
@ -2365,6 +2369,7 @@ static int __init ipoib_init_module(void)
ipoib_sendq_size = max3(ipoib_sendq_size, 2 * MAX_SEND_CQE, IPOIB_MIN_QUEUE_SIZE);
#ifdef CONFIG_INFINIBAND_IPOIB_CM
ipoib_max_conn_qp = min(ipoib_max_conn_qp, IPOIB_CM_MAX_CONN_QP);
ipoib_max_conn_qp = max(ipoib_max_conn_qp, 0);
#endif
/*

33
drivers/infiniband/ulp/ipoib/ipoib_multicast.c
View File

@ -684,15 +684,10 @@ void ipoib_mcast_start_thread(struct net_device *dev)
int ipoib_mcast_stop_thread(struct net_device *dev)
{
struct ipoib_dev_priv *priv = ipoib_priv(dev);
unsigned long flags;
ipoib_dbg_mcast(priv, "stopping multicast thread\n");
spin_lock_irqsave(&priv->lock, flags);
cancel_delayed_work(&priv->mcast_task);
spin_unlock_irqrestore(&priv->lock, flags);
flush_workqueue(priv->wq);
cancel_delayed_work_sync(&priv->mcast_task);
return 0;
}
@ -748,6 +743,14 @@ void ipoib_mcast_remove_list(struct list_head *remove_list)
{
struct ipoib_mcast *mcast, *tmcast;
/*
* make sure the in-flight joins have finished before we attempt
* to leave
*/
list_for_each_entry_safe(mcast, tmcast, remove_list, list)
if (test_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags))
wait_for_completion(&mcast->done);
list_for_each_entry_safe(mcast, tmcast, remove_list, list) {
ipoib_mcast_leave(mcast->dev, mcast);
ipoib_mcast_free(mcast);
@ -838,6 +841,7 @@ void ipoib_mcast_dev_flush(struct net_device *dev)
struct ipoib_mcast *mcast, *tmcast;
unsigned long flags;
mutex_lock(&priv->mcast_mutex);
ipoib_dbg_mcast(priv, "flushing multicast list\n");
spin_lock_irqsave(&priv->lock, flags);
@ -856,15 +860,8 @@ void ipoib_mcast_dev_flush(struct net_device *dev)
spin_unlock_irqrestore(&priv->lock, flags);
/*
* make sure the in-flight joins have finished before we attempt
* to leave
*/
list_for_each_entry_safe(mcast, tmcast, &remove_list, list)
if (test_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags))
wait_for_completion(&mcast->done);
ipoib_mcast_remove_list(&remove_list);
mutex_unlock(&priv->mcast_mutex);
}
static int ipoib_mcast_addr_is_valid(const u8 *addr, const u8 *broadcast)
@ -982,14 +979,6 @@ void ipoib_mcast_restart_task(struct work_struct *work)
netif_addr_unlock(dev);
local_irq_restore(flags);
/*
* make sure the in-flight joins have finished before we attempt
* to leave
*/
list_for_each_entry_safe(mcast, tmcast, &remove_list, list)
if (test_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags))
wait_for_completion(&mcast->done);
ipoib_mcast_remove_list(&remove_list);
/*

1
include/linux/mlx5/qp.h
View File

@ -212,7 +212,6 @@ struct mlx5_wqe_ctrl_seg {
#define MLX5_WQE_CTRL_OPCODE_MASK 0xff
#define MLX5_WQE_CTRL_WQE_INDEX_MASK 0x00ffff00
#define MLX5_WQE_CTRL_WQE_INDEX_SHIFT 8
#define MLX5_WQE_AV_EXT 0x80000000
enum {
MLX5_ETH_WQE_L3_INNER_CSUM = 1 << 4,