Commit 8aee74c8 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

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

* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband:
  IB/cm: Improve local id allocation
  IPoIB/cm: Fix SRQ WR leak
  IB/ipoib: Fix typos in error messages
  IB/mlx4: Check if SRQ is full when posting receive
  IB/mlx4: Pass send queue sizes from userspace to kernel
  IB/mlx4: Fix check of opcode in mlx4_ib_post_send()
  mlx4_core: Fix array overrun in dump_dev_cap_flags()
  IB/mlx4: Fix RESET to RESET and RESET to ERROR transitions
  IB/mthca: Fix RESET to ERROR transition
  IB/mlx4: Set GRH:HopLimit when sending globally routed MADs
  IB/mthca: Set GRH:HopLimit when building MLX headers
  IB/mlx4: Fix check of max_qp_dest_rdma in modify QP
  IB/mthca: Fix use-after-free on device restart
  IB/ehca: Return proper error code if register_mr fails
  IPoIB: Handle P_Key table reordering
  IB/core: Use start_port() and end_port()
  IB/core: Add helpers for uncached GID and P_Key searches
  IB/ipath: Fix potential deadlock with multicast spinlocks
  IB/core: Free umem when mm is already gone
parents 080e8927 9f81036c

drivers/infiniband/core/cm.c

+3 −1
Original line number Diff line number Diff line
@@ -306,7 +306,9 @@ static int cm_alloc_id(struct cm_id_private *cm_id_priv) 
	do {

		spin_lock_irqsave(&cm.lock, flags);

		ret = idr_get_new_above(&cm.local_id_table, cm_id_priv,

					next_id++, &id);

					next_id, &id);

		if (!ret)

			next_id = ((unsigned) id + 1) & MAX_ID_MASK;

		spin_unlock_irqrestore(&cm.lock, flags);

	} while( (ret == -EAGAIN) && idr_pre_get(&cm.local_id_table, GFP_KERNEL) );

drivers/infiniband/core/device.c

+127 −8
Original line number Diff line number Diff line
@@ -150,6 +150,18 @@ static int alloc_name(char *name) 
	return 0;

}



static int start_port(struct ib_device *device)

{

	return (device->node_type == RDMA_NODE_IB_SWITCH) ? 0 : 1;

}





static int end_port(struct ib_device *device)

{

	return (device->node_type == RDMA_NODE_IB_SWITCH) ?

		0 : device->phys_port_cnt;

}



/**

 * ib_alloc_device - allocate an IB device struct

 * @size:size of structure to allocate
@@ -209,6 +221,45 @@ static int add_client_context(struct ib_device *device, struct ib_client *client 
	return 0;

}



static int read_port_table_lengths(struct ib_device *device)

{

	struct ib_port_attr *tprops = NULL;

	int num_ports, ret = -ENOMEM;

	u8 port_index;



	tprops = kmalloc(sizeof *tprops, GFP_KERNEL);

	if (!tprops)

		goto out;



	num_ports = end_port(device) - start_port(device) + 1;



	device->pkey_tbl_len = kmalloc(sizeof *device->pkey_tbl_len * num_ports,

				       GFP_KERNEL);

	device->gid_tbl_len = kmalloc(sizeof *device->gid_tbl_len * num_ports,

				      GFP_KERNEL);

	if (!device->pkey_tbl_len || !device->gid_tbl_len)

		goto err;



	for (port_index = 0; port_index < num_ports; ++port_index) {

		ret = ib_query_port(device, port_index + start_port(device),

					tprops);

		if (ret)

			goto err;

		device->pkey_tbl_len[port_index] = tprops->pkey_tbl_len;

		device->gid_tbl_len[port_index]  = tprops->gid_tbl_len;

	}



	ret = 0;

	goto out;



err:

	kfree(device->gid_tbl_len);

	kfree(device->pkey_tbl_len);

out:

	kfree(tprops);

	return ret;

}



/**

 * ib_register_device - Register an IB device with IB core

 * @device:Device to register
@@ -240,10 +291,19 @@ int ib_register_device(struct ib_device *device) 
	spin_lock_init(&device->event_handler_lock);

	spin_lock_init(&device->client_data_lock);



	ret = read_port_table_lengths(device);

	if (ret) {

		printk(KERN_WARNING "Couldn't create table lengths cache for device %s\n",

		       device->name);

		goto out;

	}



	ret = ib_device_register_sysfs(device);

	if (ret) {

		printk(KERN_WARNING "Couldn't register device %s with driver model\n",

		       device->name);

		kfree(device->gid_tbl_len);

		kfree(device->pkey_tbl_len);

		goto out;

	}
@@ -285,6 +345,9 @@ void ib_unregister_device(struct ib_device *device) 


	list_del(&device->core_list);



	kfree(device->gid_tbl_len);

	kfree(device->pkey_tbl_len);



	mutex_unlock(&device_mutex);



	spin_lock_irqsave(&device->client_data_lock, flags);
@@ -507,10 +570,7 @@ int ib_query_port(struct ib_device *device, 
		  u8 port_num,

		  struct ib_port_attr *port_attr)

{

	if (device->node_type == RDMA_NODE_IB_SWITCH) {

		if (port_num)

			return -EINVAL;

	} else if (port_num < 1 || port_num > device->phys_port_cnt)

	if (port_num < start_port(device) || port_num > end_port(device))

		return -EINVAL;



	return device->query_port(device, port_num, port_attr);
@@ -582,10 +642,7 @@ int ib_modify_port(struct ib_device *device, 
		   u8 port_num, int port_modify_mask,

		   struct ib_port_modify *port_modify)

{

	if (device->node_type == RDMA_NODE_IB_SWITCH) {

		if (port_num)

			return -EINVAL;

	} else if (port_num < 1 || port_num > device->phys_port_cnt)

	if (port_num < start_port(device) || port_num > end_port(device))

		return -EINVAL;



	return device->modify_port(device, port_num, port_modify_mask,
@@ -593,6 +650,68 @@ int ib_modify_port(struct ib_device *device, 
}

EXPORT_SYMBOL(ib_modify_port);



/**

 * ib_find_gid - Returns the port number and GID table index where

 *   a specified GID value occurs.

 * @device: The device to query.

 * @gid: The GID value to search for.

 * @port_num: The port number of the device where the GID value was found.

 * @index: The index into the GID table where the GID was found.  This

 *   parameter may be NULL.

 */

int ib_find_gid(struct ib_device *device, union ib_gid *gid,

		u8 *port_num, u16 *index)

{

	union ib_gid tmp_gid;

	int ret, port, i;



	for (port = start_port(device); port <= end_port(device); ++port) {

		for (i = 0; i < device->gid_tbl_len[port - start_port(device)]; ++i) {

			ret = ib_query_gid(device, port, i, &tmp_gid);

			if (ret)

				return ret;

			if (!memcmp(&tmp_gid, gid, sizeof *gid)) {

				*port_num = port;

				if (index)

					*index = i;

				return 0;

			}

		}

	}



	return -ENOENT;

}

EXPORT_SYMBOL(ib_find_gid);



/**

 * ib_find_pkey - Returns the PKey table index where a specified

 *   PKey value occurs.

 * @device: The device to query.

 * @port_num: The port number of the device to search for the PKey.

 * @pkey: The PKey value to search for.

 * @index: The index into the PKey table where the PKey was found.

 */

int ib_find_pkey(struct ib_device *device,

		 u8 port_num, u16 pkey, u16 *index)

{

	int ret, i;

	u16 tmp_pkey;



	for (i = 0; i < device->pkey_tbl_len[port_num - start_port(device)]; ++i) {

		ret = ib_query_pkey(device, port_num, i, &tmp_pkey);

		if (ret)

			return ret;



		if (pkey == tmp_pkey) {

			*index = i;

			return 0;

		}

	}



	return -ENOENT;

}

EXPORT_SYMBOL(ib_find_pkey);



static int __init ib_core_init(void)

{

	int ret;

drivers/infiniband/core/umem.c

+3 −1
Original line number Diff line number Diff line
@@ -210,8 +210,10 @@ void ib_umem_release(struct ib_umem *umem) 
	__ib_umem_release(umem->context->device, umem, 1);



	mm = get_task_mm(current);

	if (!mm)

	if (!mm) {

		kfree(umem);

		return;

	}



	diff = PAGE_ALIGN(umem->length + umem->offset) >> PAGE_SHIFT;

drivers/infiniband/hw/ehca/ehca_mrmw.c

+2 −5
Original line number Diff line number Diff line
@@ -2050,13 +2050,10 @@ int ehca_mrmw_map_hrc_alloc(const u64 hipz_rc) 
	switch (hipz_rc) {

	case H_SUCCESS:	             /* successful completion */

		return 0;

	case H_ADAPTER_PARM:         /* invalid adapter handle */

	case H_RT_PARM:              /* invalid resource type */

	case H_NOT_ENOUGH_RESOURCES: /* insufficient resources */

	case H_MLENGTH_PARM:         /* invalid memory length */

	case H_MEM_ACCESS_PARM:      /* invalid access controls */

	case H_CONSTRAINED:          /* resource constraint */

		return -EINVAL;

	case H_NO_MEM:

		return -ENOMEM;

	case H_BUSY:                 /* long busy */

		return -EBUSY;

	default:

drivers/infiniband/hw/ipath/ipath_verbs_mcast.c

+7 −9
Original line number Diff line number Diff line
@@ -165,10 +165,9 @@ static int ipath_mcast_add(struct ipath_ibdev *dev, 
{

	struct rb_node **n = &mcast_tree.rb_node;

	struct rb_node *pn = NULL;

	unsigned long flags;

	int ret;



	spin_lock_irqsave(&mcast_lock, flags);

	spin_lock_irq(&mcast_lock);



	while (*n) {

		struct ipath_mcast *tmcast;
@@ -228,7 +227,7 @@ static int ipath_mcast_add(struct ipath_ibdev *dev, 
	ret = 0;



bail:

	spin_unlock_irqrestore(&mcast_lock, flags);

	spin_unlock_irq(&mcast_lock);



	return ret;

}
@@ -289,17 +288,16 @@ int ipath_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) 
	struct ipath_mcast *mcast = NULL;

	struct ipath_mcast_qp *p, *tmp;

	struct rb_node *n;

	unsigned long flags;

	int last = 0;

	int ret;



	spin_lock_irqsave(&mcast_lock, flags);

	spin_lock_irq(&mcast_lock);



	/* Find the GID in the mcast table. */

	n = mcast_tree.rb_node;

	while (1) {

		if (n == NULL) {

			spin_unlock_irqrestore(&mcast_lock, flags);

			spin_unlock_irq(&mcast_lock);

			ret = -EINVAL;

			goto bail;

		}
@@ -334,7 +332,7 @@ int ipath_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) 
		break;

	}



	spin_unlock_irqrestore(&mcast_lock, flags);

	spin_unlock_irq(&mcast_lock);



	if (p) {

		/*
@@ -348,9 +346,9 @@ int ipath_multicast_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid) 
		atomic_dec(&mcast->refcount);

		wait_event(mcast->wait, !atomic_read(&mcast->refcount));

		ipath_mcast_free(mcast);

		spin_lock(&dev->n_mcast_grps_lock);

		spin_lock_irq(&dev->n_mcast_grps_lock);

		dev->n_mcast_grps_allocated--;

		spin_unlock(&dev->n_mcast_grps_lock);

		spin_unlock_irq(&dev->n_mcast_grps_lock);

	}



	ret = 0;

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