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| author |   Parav Pandit <parav@mellanox.com> | 2019-02-26 13:56:11 +0200 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2019-03-28 14:52:02 -0300 |
| commit | cebe556bd755d16559c8bc0d1fe5545db6bbeaf0 (patch) | |
| tree | 4d62567121599d511c2ee582709ab8e3afd06810 /include/rdma/ib_verbs.h | |
| parent | RDMA/rdmavt: Use correct sizing on buffers holding page DMA addresses (diff) | |
| download | linux-dev-cebe556bd755d16559c8bc0d1fe5545db6bbeaf0.tar.xz linux-dev-cebe556bd755d16559c8bc0d1fe5545db6bbeaf0.zip | |
RDMA/core: Introduce ib_core_device to hold device
In order to support sysfs entries in multiple net namespaces for a rdma
device, introduce a ib_core_device whose scope is limited to hold core
device and per port sysfs related entries.
This is preparation patch so that multiple ib_core_devices in each net
namespace can be created in subsequent patch who all can share ib_device.
(a) Move sysfs specific fields to ib_core_device.
(b) Make sysfs and device life cycle related routines to work on
ib_core_device.
(c) Introduce and use rdma_init_coredev() helper to initialize
coredev fields.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to '')
| -rw-r--r-- | include/rdma/ib_verbs.h | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 9b9e17bcc201..5f9f4fcdc4cc 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -2554,8 +2554,17 @@ struct ib_device_ops { DECLARE_RDMA_OBJ_SIZE(ib_ucontext); }; -struct rdma_restrack_root; +struct ib_core_device { + /* device must be the first element in structure until, + * union of ib_core_device and device exists in ib_device. + */ + struct device dev; + struct kobject *ports_kobj; + struct list_head port_list; + struct ib_device *owner; /* reach back to owner ib_device */ +}; +struct rdma_restrack_root; struct ib_device { /* Do not access @dma_device directly from ULP nor from HW drivers. */ struct device *dma_device; @@ -2581,16 +2590,17 @@ struct ib_device { struct iw_cm_verbs *iwcm; struct module *owner; - struct device dev; + union { + struct device dev; + struct ib_core_device coredev; + }; + /* First group for device attributes, * Second group for driver provided attributes (optional). * It is NULL terminated array. */ const struct attribute_group *groups[3]; - struct kobject *ports_kobj; - struct list_head port_list; - int uverbs_abi_ver; u64 uverbs_cmd_mask; u64 uverbs_ex_cmd_mask; @@ -4349,7 +4359,10 @@ rdma_set_device_sysfs_group(struct ib_device *dev, */ static inline struct ib_device *rdma_device_to_ibdev(struct device *device) { - return container_of(device, struct ib_device, dev); + struct ib_core_device *coredev = + container_of(device, struct ib_core_device, dev); + + return coredev->owner; } /** |