linux-stable/drivers/infiniband/Kconfig
Jason Gunthorpe 914e5d7d46 RDMA: Fix building with CONFIG_MMU=n
The zap_vma_ptes() is declared but not defined on NOMMU kernels, causing a
link error for the newly added uverbs code:

drivers/infiniband/core/uverbs_main.o: In function `uverbs_user_mmap_disassociate':
uverbs_main.c:(.text+0x114c): undefined reference to `zap_vma_ptes'
drivers/infiniband/core/uverbs_main.o: In function `rdma_umap_open':
uverbs_main.c:(.text+0x53c): undefined reference to `zap_vma_ptes'

Since all user access for all of our drivers depend on remapping pages to
user space disable USER_ACCESS when there is no mmu.

Fixes: 5f9794dc94 ("RDMA/ucontext: Add a core API for mmaping driver IO memory")
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-10-03 16:01:03 -06:00

123 lines
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menuconfig INFINIBAND
tristate "InfiniBand support"
depends on HAS_IOMEM && HAS_DMA
depends on NET
depends on INET
depends on m || IPV6 != m
depends on !ALPHA
select IRQ_POLL
---help---
Core support for InfiniBand (IB). Make sure to also select
any protocols you wish to use as well as drivers for your
InfiniBand hardware.
if INFINIBAND
config INFINIBAND_USER_MAD
tristate "InfiniBand userspace MAD support"
depends on INFINIBAND
---help---
Userspace InfiniBand Management Datagram (MAD) support. This
is the kernel side of the userspace MAD support, which allows
userspace processes to send and receive MADs. You will also
need libibumad from rdma-core
<https://github.com/linux-rdma/rdma-core>.
config INFINIBAND_USER_ACCESS
tristate "InfiniBand userspace access (verbs and CM)"
select ANON_INODES
depends on MMU
---help---
Userspace InfiniBand access support. This enables the
kernel side of userspace verbs and the userspace
communication manager (CM). This allows userspace processes
to set up connections and directly access InfiniBand
hardware for fast-path operations. You will also need
libibverbs, libibcm and a hardware driver library from
rdma-core <https://github.com/linux-rdma/rdma-core>.
config INFINIBAND_USER_ACCESS_UCM
tristate "Userspace CM (UCM, DEPRECATED)"
depends on BROKEN || COMPILE_TEST
depends on INFINIBAND_USER_ACCESS
help
The UCM module has known security flaws, which no one is
interested to fix. The user-space part of this code was
dropped from the upstream a long time ago.
This option is DEPRECATED and planned to be removed.
config INFINIBAND_EXP_LEGACY_VERBS_NEW_UAPI
bool "Allow experimental legacy verbs in new ioctl uAPI (EXPERIMENTAL)"
depends on INFINIBAND_USER_ACCESS
---help---
IOCTL based uAPI support for Infiniband is enabled by default for
new verbs only. This allows userspace to invoke the IOCTL based uAPI
for current legacy verbs too.
config INFINIBAND_USER_MEM
bool
depends on INFINIBAND_USER_ACCESS != n
depends on MMU
default y
config INFINIBAND_ON_DEMAND_PAGING
bool "InfiniBand on-demand paging support"
depends on INFINIBAND_USER_MEM
select MMU_NOTIFIER
default y
---help---
On demand paging support for the InfiniBand subsystem.
Together with driver support this allows registration of
memory regions without pinning their pages, fetching the
pages on demand instead.
config INFINIBAND_ADDR_TRANS
bool "RDMA/CM"
depends on INFINIBAND
default y
---help---
Support for RDMA communication manager (CM).
This allows for a generic connection abstraction over RDMA.
config INFINIBAND_ADDR_TRANS_CONFIGFS
bool
depends on INFINIBAND_ADDR_TRANS && CONFIGFS_FS && !(INFINIBAND=y && CONFIGFS_FS=m)
default y
---help---
ConfigFS support for RDMA communication manager (CM).
This allows the user to config the default GID type that the CM
uses for each device, when initiaing new connections.
source "drivers/infiniband/hw/mthca/Kconfig"
source "drivers/infiniband/hw/qib/Kconfig"
source "drivers/infiniband/hw/cxgb3/Kconfig"
source "drivers/infiniband/hw/cxgb4/Kconfig"
source "drivers/infiniband/hw/i40iw/Kconfig"
source "drivers/infiniband/hw/mlx4/Kconfig"
source "drivers/infiniband/hw/mlx5/Kconfig"
source "drivers/infiniband/hw/nes/Kconfig"
source "drivers/infiniband/hw/ocrdma/Kconfig"
source "drivers/infiniband/hw/vmw_pvrdma/Kconfig"
source "drivers/infiniband/hw/usnic/Kconfig"
source "drivers/infiniband/hw/hns/Kconfig"
source "drivers/infiniband/ulp/ipoib/Kconfig"
source "drivers/infiniband/ulp/srp/Kconfig"
source "drivers/infiniband/ulp/srpt/Kconfig"
source "drivers/infiniband/ulp/iser/Kconfig"
source "drivers/infiniband/ulp/isert/Kconfig"
source "drivers/infiniband/ulp/opa_vnic/Kconfig"
source "drivers/infiniband/sw/rdmavt/Kconfig"
source "drivers/infiniband/sw/rxe/Kconfig"
source "drivers/infiniband/hw/hfi1/Kconfig"
source "drivers/infiniband/hw/qedr/Kconfig"
source "drivers/infiniband/hw/bnxt_re/Kconfig"
endif # INFINIBAND