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linux-sg2042/drivers/infiniband/core
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Parav Pandit decbc7a6b0 RDMA/core: Introduce a helper function to change net namespace of rdma device 
Introduce a helper function that changes rdma device's net namespace which
performs mini disable/enable sequence to have device visible only in
assigned net namespace.

Device unregistration, device rename and device change net namespace
may be invoked concurrently.

(a) device unregistration needs to wait if a device change (rename or net
    namespace change) operation is in progress.
(b) device net namespace change should not proceed if the unregistration
    has started.
(c) while one cpu is changing device net namespace, other cpu should not
    be able to rename or change net namespace.

To address above concurrency,
(a) Use unreg_mutex to synchronize between ib_unregister_device() and net
    namespace change operation
(b) In cases where unregister_device() has started unregistration before
    change_netns got chance to acquire unreg_mutex, validate the refcount
    - if it dropped to zero, abort the net namespace change operation.

Finally use the helper function to change net namespace of ib device to
move the device back to init_net when such net is deleted.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
 		2019-04-22 14:44:58 -03:00
..
Makefile IB/{core,uverbs}: Move ib_umem_xxx functions from ib_core to ib_uverbs 2019-01-10 17:06:44 -07:00
addr.c RDMA/core: Annotate timeout as unsigned long 2018-10-16 13:34:01 -04:00
agent.c RDMA: Mark if destroy address handle is in a sleepable context 2018-12-19 16:28:03 -07:00
agent.h IB/mad: Add final OPA MAD processing 2015-06-12 14:49:18 -04:00
cache.c RDMA/device: Add ib_device_set_netdev() as an alternative to get_netdev 2019-02-19 20:52:18 -07:00
cgroup.c IB/core: Simplify rdma cgroup registration 2019-01-18 13:43:10 -07:00
cm.c RDMA/cm: Move debug counters to be under relevant IB device 2019-04-08 13:05:24 -03:00
cm_msgs.h RDMA: Use __packed annotation instead of __attribute__ ((packed)) 2019-03-25 21:14:12 -03:00
cma.c RDMA/cma: Set proper port number as index 2019-04-03 15:20:32 -03:00
cma_configfs.c RDMA/cma: Move cma module specific functions to cma_priv.h 2018-11-22 11:57:33 -07:00
cma_priv.h IB/cma: Define option to set ack timeout and pack tos_set 2019-02-08 16:14:21 -07:00
core_priv.h RDMA/cm: Move debug counters to be under relevant IB device 2019-04-08 13:05:24 -03:00
cq.c IB: Pass only ib_udata in function prototypes 2019-04-01 15:00:47 -03:00
device.c RDMA/core: Introduce a helper function to change net namespace of rdma device 2019-04-22 14:44:58 -03:00
fmr_pool.c RDMA: Start use ib_device_ops 2018-12-12 07:40:16 -07:00
iwcm.c RDMA/iwcm: Fix string truncation error 2019-02-19 20:52:19 -07:00
iwcm.h iw_cm: free cm_id resources on the last deref 2016-08-02 13:15:18 -04:00
iwpm_msg.c RDMA/iwpm: move kdoc comments to functions 2019-02-05 15:40:41 -07:00
iwpm_util.c RDMA/iwpm: Remove set but not used variable 'msg_seq' 2019-02-14 14:47:39 -07:00
iwpm_util.h RDMA/IWPM: Support no port mapping requirements 2019-02-04 16:26:02 -07:00
mad.c IB/MAD: Add SMP details to MAD tracing 2019-03-27 15:52:01 -03:00
mad_priv.h RDMA: Use __packed annotation instead of __attribute__ ((packed)) 2019-03-25 21:14:12 -03:00
mad_rmpp.c RDMA: Mark if destroy address handle is in a sleepable context 2018-12-19 16:28:03 -07:00
mad_rmpp.h
…
mr_pool.c IB/core: add a simple MR pool 2016-05-13 13:37:18 -04:00
multicast.c IB: Make ib_init_ah_from_mcmember set sgid_attr 2018-06-25 14:19:56 -06:00
netlink.c RDMA/cma: Remove CM_ID statistics provided by rdma-cm module 2019-02-05 15:30:33 -07:00
nldev.c RDMA/nldev: Return device protocol 2019-04-08 13:05:25 -03:00
opa_smi.h RDMA: Start use ib_device_ops 2018-12-12 07:40:16 -07:00
packer.c IB/core: trivial prink cleanup. 2016-03-03 10:20:25 -05:00
rdma_core.c IB: When attrs.udata/ufile is available use that instead of uobject 2019-04-08 13:05:25 -03:00
rdma_core.h IB: Pass uverbs_attr_bundle down uobject destroy path 2019-04-01 14:55:36 -03:00
restrack.c XArray updates for 5.1-rc1 2019-03-11 20:06:18 -07:00
restrack.h RDMA/restrack: Prepare restrack_root to addition of extra fields per-type 2019-02-19 10:13:38 -07:00
roce_gid_mgmt.c IB/core: Fix oops in netdev_next_upper_dev_rcu() 2018-12-12 12:14:49 -05:00
rw.c IB/core: Remove ib_sg_dma_address() and ib_sg_dma_len() 2019-02-04 14:34:07 -07:00
sa.h RDMA/core: Annotate timeout as unsigned long 2018-10-16 13:34:01 -04:00
sa_query.c ib core: Convert query_idr to XArray 2019-03-26 11:47:05 -03:00
security.c RDMA/device: Consolidate ib_device per_port data into one place 2019-02-19 10:13:39 -07:00
smi.c IB: Add rdma_cap_ib_switch helper and use where appropriate 2015-07-14 13:20:08 -04:00
smi.h RDMA: Start use ib_device_ops 2018-12-12 07:40:16 -07:00
sysfs.c RDMA/cm: Move debug counters to be under relevant IB device 2019-04-08 13:05:24 -03:00
ucm.c ucm: Convert ctx_id_table to XArray 2019-03-26 11:50:29 -03:00
ucma.c IB/cma: Define option to set ack timeout and pack tos_set 2019-02-08 16:14:21 -07:00
ud_header.c IB/core: trivial prink cleanup. 2016-03-03 10:20:25 -05:00
umem.c RDMA/umem: Use correct value for SG entries in sg_copy_to_buffer() 2019-04-08 13:05:25 -03:00
umem_odp.c RDMA/umem: Combine contiguous PAGE_SIZE regions in SGEs 2019-04-08 13:05:24 -03:00
user_mad.c RDMA: Check net namespace access for uverbs, umad, cma and nldev 2019-03-28 14:52:02 -03:00
uverbs.h IB: Remove 'uobject->context' dependency in object destroy APIs 2019-04-01 14:59:35 -03:00
uverbs_cmd.c RDMA: Handle SRQ allocations by IB/core 2019-04-08 13:05:25 -03:00
uverbs_ioctl.c IB: Pass uverbs_attr_bundle down uobject destroy path 2019-04-01 14:55:36 -03:00
uverbs_main.c RDMA: Check net namespace access for uverbs, umad, cma and nldev 2019-03-28 14:52:02 -03:00
uverbs_marshall.c IB/cm: Replace members of sa_path_rec with 'struct sgid_attr *' 2018-06-25 14:19:57 -06:00
uverbs_std_types.c IB: Remove 'uobject->context' dependency in object destroy APIs 2019-04-01 14:59:35 -03:00
uverbs_std_types_counters.c IB: When attrs.udata/ufile is available use that instead of uobject 2019-04-08 13:05:25 -03:00
uverbs_std_types_cq.c IB: When attrs.udata/ufile is available use that instead of uobject 2019-04-08 13:05:25 -03:00
uverbs_std_types_device.c IB/uverbs: Fix ioctl query port to consider device disassociation 2019-01-25 11:58:06 -07:00
uverbs_std_types_dm.c IB: When attrs.udata/ufile is available use that instead of uobject 2019-04-08 13:05:25 -03:00
uverbs_std_types_flow_action.c IB: When attrs.udata/ufile is available use that instead of uobject 2019-04-08 13:05:25 -03:00
uverbs_std_types_mr.c IB: Pass uverbs_attr_bundle down ib_x destroy path 2019-04-01 14:57:35 -03:00
uverbs_uapi.c IB/mlx5: Introduce MLX5_IB_OBJECT_DEVX_ASYNC_CMD_FD 2019-01-29 13:32:43 -07:00
verbs.c RDMA: Handle SRQ allocations by IB/core 2019-04-08 13:05:25 -03:00