| Message ID | 20200311161240.30190-14-jinpu.wang@cloud.ionos.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | RTRS (former IBTRS) RDMA Transport Library and RNBD (former IBNBD) RDMA Network Block Device | expand |
On Wed, Mar 11, 2020 at 05:12:27PM +0100, Jack Wang wrote: > Add rtrs Makefile, Kconfig and also corresponding lines into upper > layer infiniband/ulp files. > > Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com> > Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com> > --- > drivers/infiniband/Kconfig | 1 + > drivers/infiniband/ulp/Makefile | 1 + > drivers/infiniband/ulp/rtrs/Kconfig | 27 +++++++++++++++++++++++++++ > drivers/infiniband/ulp/rtrs/Makefile | 15 +++++++++++++++ > 4 files changed, 44 insertions(+) > create mode 100644 drivers/infiniband/ulp/rtrs/Kconfig > create mode 100644 drivers/infiniband/ulp/rtrs/Makefile How is this using ib_devices without having a struct ib_client ? Jason
On Wed, Mar 11, 2020 at 8:03 PM Jason Gunthorpe <jgg@ziepe.ca> wrote: > > On Wed, Mar 11, 2020 at 05:12:27PM +0100, Jack Wang wrote: > > Add rtrs Makefile, Kconfig and also corresponding lines into upper > > layer infiniband/ulp files. > > > > Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com> > > Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com> > > --- > > drivers/infiniband/Kconfig | 1 + > > drivers/infiniband/ulp/Makefile | 1 + > > drivers/infiniband/ulp/rtrs/Kconfig | 27 +++++++++++++++++++++++++++ > > drivers/infiniband/ulp/rtrs/Makefile | 15 +++++++++++++++ > > 4 files changed, 44 insertions(+) > > create mode 100644 drivers/infiniband/ulp/rtrs/Kconfig > > create mode 100644 drivers/infiniband/ulp/rtrs/Makefile > > How is this using ib_devices without having a struct ib_client ? Hi Jason, After we resolved address using rdma_resolve_add() we access the ib_device from rdma_cm_id. The ib_device has been registered on rdma_cm module load in cma_init(). The handle device removal through RDMA_CM_EVENT_DEVICE_REMOVAL. Best, Danil > > Jason
On Thu, Mar 12, 2020 at 11:50:59AM +0100, Danil Kipnis wrote: > On Wed, Mar 11, 2020 at 8:03 PM Jason Gunthorpe <jgg@ziepe.ca> wrote: > > > > On Wed, Mar 11, 2020 at 05:12:27PM +0100, Jack Wang wrote: > > > Add rtrs Makefile, Kconfig and also corresponding lines into upper > > > layer infiniband/ulp files. > > > > > > Signed-off-by: Danil Kipnis <danil.kipnis@cloud.ionos.com> > > > Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com> > > > drivers/infiniband/Kconfig | 1 + > > > drivers/infiniband/ulp/Makefile | 1 + > > > drivers/infiniband/ulp/rtrs/Kconfig | 27 +++++++++++++++++++++++++++ > > > drivers/infiniband/ulp/rtrs/Makefile | 15 +++++++++++++++ > > > 4 files changed, 44 insertions(+) > > > create mode 100644 drivers/infiniband/ulp/rtrs/Kconfig > > > create mode 100644 drivers/infiniband/ulp/rtrs/Makefile > > > > How is this using ib_devices without having a struct ib_client ? > Hi Jason, > > After we resolved address using rdma_resolve_add() we access the > ib_device from rdma_cm_id. The ib_device has been registered on > rdma_cm module load in cma_init(). The handle device removal through > RDMA_CM_EVENT_DEVICE_REMOVAL. Hmm.. I actually don't know if this flow works OK in rdma cm or not.. Actually I expect if I look at rdma cm, I'll find it is broken.. However, it does sound like a reasonable approach, so nothing to do here. Jason
diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig index ade86388434f..477418b37786 100644 --- a/drivers/infiniband/Kconfig +++ b/drivers/infiniband/Kconfig @@ -107,6 +107,7 @@ source "drivers/infiniband/ulp/srpt/Kconfig" source "drivers/infiniband/ulp/iser/Kconfig" source "drivers/infiniband/ulp/isert/Kconfig" +source "drivers/infiniband/ulp/rtrs/Kconfig" source "drivers/infiniband/ulp/opa_vnic/Kconfig" diff --git a/drivers/infiniband/ulp/Makefile b/drivers/infiniband/ulp/Makefile index 437813c7b481..4d0004b58377 100644 --- a/drivers/infiniband/ulp/Makefile +++ b/drivers/infiniband/ulp/Makefile @@ -5,3 +5,4 @@ obj-$(CONFIG_INFINIBAND_SRPT) += srpt/ obj-$(CONFIG_INFINIBAND_ISER) += iser/ obj-$(CONFIG_INFINIBAND_ISERT) += isert/ obj-$(CONFIG_INFINIBAND_OPA_VNIC) += opa_vnic/ +obj-$(CONFIG_INFINIBAND_RTRS) += rtrs/ diff --git a/drivers/infiniband/ulp/rtrs/Kconfig b/drivers/infiniband/ulp/rtrs/Kconfig new file mode 100644 index 000000000000..9092b62e6dc8 --- /dev/null +++ b/drivers/infiniband/ulp/rtrs/Kconfig @@ -0,0 +1,27 @@ +# SPDX-License-Identifier: GPL-2.0-or-later + +config INFINIBAND_RTRS + tristate + depends on INFINIBAND_ADDR_TRANS + +config INFINIBAND_RTRS_CLIENT + tristate "RTRS client module" + depends on INFINIBAND_ADDR_TRANS + select INFINIBAND_RTRS + help + RDMA transport client module. + + RDMA Transport (RTRS) client implements a reliable transport layer + and also multipathing functionality and that it is intended to be + the base layer for a block storage initiator over RDMA. + +config INFINIBAND_RTRS_SERVER + tristate "RTRS server module" + depends on INFINIBAND_ADDR_TRANS + select INFINIBAND_RTRS + help + RDMA transport server module. + + RDMA Transport (RTRS) server module processing connection and IO + requests received from the RTRS client module, it will pass the + IO requests to its user eg. RNBD_server. diff --git a/drivers/infiniband/ulp/rtrs/Makefile b/drivers/infiniband/ulp/rtrs/Makefile new file mode 100644 index 000000000000..3898509be270 --- /dev/null +++ b/drivers/infiniband/ulp/rtrs/Makefile @@ -0,0 +1,15 @@ +# SPDX-License-Identifier: GPL-2.0-or-later + +rtrs-client-y := rtrs-clt.o \ + rtrs-clt-stats.o \ + rtrs-clt-sysfs.o + +rtrs-server-y := rtrs-srv.o \ + rtrs-srv-stats.o \ + rtrs-srv-sysfs.o + +rtrs-core-y := rtrs.o + +obj-$(CONFIG_INFINIBAND_RTRS) += rtrs-core.o +obj-$(CONFIG_INFINIBAND_RTRS_CLIENT) += rtrs-client.o +obj-$(CONFIG_INFINIBAND_RTRS_SERVER) += rtrs-server.o