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Date: Mon, 7 Jun 2021 11:17:25 +0300
From: Leon Romanovsky <leon@...nel.org>
To: Doug Ledford <dledford@...hat.com>,
Jason Gunthorpe <jgg@...dia.com>
Cc: Greg KH <gregkh@...uxfoundation.org>,
Kees Cook <keescook@...omium.org>,
Nathan Chancellor <nathan@...nel.org>,
Leon Romanovsky <leonro@...dia.com>,
Adit Ranadive <aditr@...are.com>,
Ariel Elior <aelior@...vell.com>,
Christian Benvenuti <benve@...co.com>,
clang-built-linux@...glegroups.com,
Dennis Dalessandro <dennis.dalessandro@...nelisnetworks.com>,
Devesh Sharma <devesh.sharma@...adcom.com>,
Gal Pressman <galpress@...zon.com>,
linux-kernel@...r.kernel.org, linux-rdma@...r.kernel.org,
Michal Kalderon <mkalderon@...vell.com>,
Mike Marciniszyn <mike.marciniszyn@...nelisnetworks.com>,
Mustafa Ismail <mustafa.ismail@...el.com>,
Naresh Kumar PBS <nareshkumar.pbs@...adcom.com>,
Nelson Escobar <neescoba@...co.com>,
Nick Desaulniers <ndesaulniers@...gle.com>,
Potnuri Bharat Teja <bharat@...lsio.com>,
Selvin Xavier <selvin.xavier@...adcom.com>,
Shiraz Saleem <shiraz.saleem@...el.com>,
VMware PV-Drivers <pv-drivers@...are.com>,
Yishai Hadas <yishaih@...dia.com>,
Zhu Yanjun <zyjzyj2000@...il.com>
Subject: [PATCH rdma-next v1 00/15] Reorganize sysfs file creation for struct ib_devices
From: Leon Romanovsky <leonro@...dia.com>
Chagelog:
v1:
* Added two new patches to the series
RDMA/core: Allow port_groups to be used with namespaces
RDMA: Remove rdma_set_device_sysfs_group()
* Fixed missing ops definition in device.c
* Passed proper internal validation and review
* changed EXPORT_SYMBOL to be EXPORT_SYMBOL_GPL for the ib_port_sysfs_create_groups
* qib was converted to use .is_visible() callback together with static
attribute_group declaration.
v0: https://lore.kernel.org/linux-rdma/0-v1-34c90fa45f1c+3c7b0-port_sysfs_jgg@nvidia.com/
-------------------------------------------------------------------------------
>From Jason,
IB has a complex sysfs with a deep nesting of attributes. Nathan and Kees
recently noticed this was not even slightly sane with how it was handling
attributes and a deeper inspection shows the whole thing is a pretty
"ick" coding style.
Further review shows the ick extends outward from the ib_port sysfs and
basically everything is pretty crazy.
Simplify all of it:
- Organize the ib_port and gid_attr's kobj's to have clear setup/destroy
function pairings that work only on their own kobjs.
- All memory allocated in service of a kobject's attributes is freed as
part of the kobj release function. Thus all the error handling defers
the memory frees to a put.
- Build up lists of groups for every kobject and add the entire group
list as a one-shot operation as the last thing in setup function.
- Remove essentially all the error cleanup. The final kobject_put() will
always free any memory allocated or do an internal kobject_del() if
required. The new ordering eliminates all the other cleanup cases.
- Make all attributes use proper typing for the kobj they are attached
to. Split device and port hw_stats handling.
- Create a ib_port_attribute type and change hfi1, qib and the CM code to
work with attribute lists of ib_port_attribute type instead of building
their own kobject madness
Thanks
Jason Gunthorpe (15):
RDMA: Split the alloc_hw_stats() ops to port and device variants
RDMA/core: Replace the ib_port_data hw_stats pointers with a ib_port
pointer
RDMA/core: Split port and device counter sysfs attributes
RDMA/core: Split gid_attrs related sysfs from add_port()
RDMA/core: Simplify how the gid_attrs sysfs is created
RDMA/core: Simplify how the port sysfs is created
RDMA/core: Create the device hw_counters through the normal groups
mechanism
RDMA/core: Remove the kobject_uevent() NOP
RDMA/core: Expose the ib port sysfs attribute machinery
RDMA/cm: Use an attribute_group on the ib_port_attribute intead of
kobj's
RDMA/qib: Use attributes for the port sysfs
RDMA/hfi1: Use attributes for the port sysfs
RDMA: Change ops->init_port to ops->port_groups
RDMA/core: Allow port_groups to be used with namespaces
RDMA: Remove rdma_set_device_sysfs_group()
drivers/infiniband/core/cm.c | 227 ++--
drivers/infiniband/core/core_priv.h | 13 +-
drivers/infiniband/core/counters.c | 4 +-
drivers/infiniband/core/device.c | 30 +-
drivers/infiniband/core/nldev.c | 10 +-
drivers/infiniband/core/sysfs.c | 1095 ++++++++---------
drivers/infiniband/hw/bnxt_re/hw_counters.c | 7 +-
drivers/infiniband/hw/bnxt_re/hw_counters.h | 4 +-
drivers/infiniband/hw/bnxt_re/main.c | 4 +-
drivers/infiniband/hw/cxgb4/provider.c | 11 +-
drivers/infiniband/hw/efa/efa.h | 3 +-
drivers/infiniband/hw/efa/efa_main.c | 3 +-
drivers/infiniband/hw/efa/efa_verbs.c | 11 +-
drivers/infiniband/hw/hfi1/hfi.h | 7 +-
drivers/infiniband/hw/hfi1/sysfs.c | 529 +++-----
drivers/infiniband/hw/hfi1/verbs.c | 92 +-
drivers/infiniband/hw/irdma/verbs.c | 11 +-
drivers/infiniband/hw/mlx4/main.c | 27 +-
drivers/infiniband/hw/mlx5/counters.c | 42 +-
drivers/infiniband/hw/mlx5/main.c | 2 +-
drivers/infiniband/hw/mthca/mthca_provider.c | 2 +-
drivers/infiniband/hw/ocrdma/ocrdma_main.c | 2 +-
drivers/infiniband/hw/qedr/main.c | 2 +-
drivers/infiniband/hw/qib/qib.h | 8 +-
drivers/infiniband/hw/qib/qib_sysfs.c | 616 ++++------
drivers/infiniband/hw/qib/qib_verbs.c | 6 +-
drivers/infiniband/hw/usnic/usnic_ib_main.c | 3 +-
.../infiniband/hw/vmw_pvrdma/pvrdma_main.c | 2 +-
drivers/infiniband/sw/rdmavt/vt.c | 2 +-
drivers/infiniband/sw/rxe/rxe_hw_counters.c | 7 +-
drivers/infiniband/sw/rxe/rxe_hw_counters.h | 4 +-
drivers/infiniband/sw/rxe/rxe_verbs.c | 4 +-
include/rdma/ib_sysfs.h | 37 +
include/rdma/ib_verbs.h | 68 +-
34 files changed, 1313 insertions(+), 1582 deletions(-)
create mode 100644 include/rdma/ib_sysfs.h
--
2.31.1
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