On 26.11.2014 11:34, Ian Chapman wrote:
> On 25/11/14 20:40, poma wrote:
>
>>> Is svcrdma intentionally not built in the current kernels or has it been
>>> replaced by something else?
>>>
>
>> $ find -name config* -exec grep -H CONFIG_SUNRPC_XPRT_RDMA_SERVER {} \;
>> ./kernel-3.15.0-0.rc0.git12.1.fc21.x86_64/boot/config-3.15.0-0.rc0.git12.1.fc21.x86_64:# CONFIG_SUNRPC_XPRT_RDMA_SERVER is not set
>>
>
> OK, so it's probably not been enabled intentionally. Looks like I'll
> have to compile up the module.
>
$ uname -r
3.17.3-200.fc20.x86_64
$ su -c 'yum install kernel-devel'
$ yumdownloader --source kernel
$ rpm -ivh kernel-3.17.3-200.fc20.src.rpm
$ rpmbuild -bp ~/rpmbuild/SPECS/kernel.spec
$ cd ~/rpmbuild/BUILD/kernel-3.17.fc20/linux-$(uname -r)/net/sunrpc/xprtrdma/
$ cat Makefile
obj-m += svcrdma.o
svcrdma-y := svc_rdma.o svc_rdma_transport.o \
svc_rdma_marshal.o svc_rdma_sendto.o svc_rdma_recvfrom.o
KDIR := /lib/modules/$(shell uname -r)/build
PWD := $(shell pwd)
default:
$(MAKE) -C $(KDIR) M=$(PWD) modules
$ make
$ find -name *.ko
./svcrdma.ko
$ su
# cp svcrdma.ko /lib/modules/$(uname -r)/updates/
# depmod
# modinfo svcrdma
filename: /lib/modules/3.17.3-200.fc20.x86_64/updates/svcrdma.ko
license: Dual BSD/GPL
description: SVC RDMA Transport
author: Tom Tucker <tom@xxxxxxxxxxxxxxxxxxxxx>
depends: ib_core,sunrpc,rdma_cm
vermagic: 3.17.3-200.fc20.x86_64 SMP mod_unload
# modprobe -v svcrdma
insmod /lib/modules/3.17.3-200.fc20.x86_64/kernel/drivers/infiniband/core/ib_addr.ko
insmod /lib/modules/3.17.3-200.fc20.x86_64/kernel/drivers/infiniband/core/ib_core.ko
insmod /lib/modules/3.17.3-200.fc20.x86_64/kernel/drivers/infiniband/core/ib_mad.ko
insmod /lib/modules/3.17.3-200.fc20.x86_64/kernel/drivers/infiniband/core/ib_sa.ko
insmod /lib/modules/3.17.3-200.fc20.x86_64/kernel/drivers/infiniband/core/ib_cm.ko
insmod /lib/modules/3.17.3-200.fc20.x86_64/kernel/drivers/infiniband/core/iw_cm.ko
insmod /lib/modules/3.17.3-200.fc20.x86_64/kernel/drivers/infiniband/core/rdma_cm.ko
insmod /lib/modules/3.17.3-200.fc20.x86_64/updates/svcrdma.ko
# dmesg -t | grep svcrdma
svcrdma: module verification failed: signature and/or required key missing - tainting kernel
# lsmod | grep svcrdma
svcrdma 40547 0
rdma_cm 42325 1 svcrdma
ib_core 79289 6 rdma_cm,ib_cm,ib_sa,iw_cm,svcrdma,ib_mad
sunrpc 279768 22 nfs,nfsd,rpcsec_gss_krb5,auth_rpcgss,lockd,nfsv4,svcrdma,nfs_acl
Is this method valid for you?
Ref.
https://fedoraproject.org/wiki/Building_a_custom_kernel#Building_Only_Kernel_Modules_.28Out_Of_Tree_Modules.29
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