From: Jerin Jacob Date: Fri, 5 Jul 2019 08:37:58 +0000 (+0530) Subject: raw/octeontx2_dma: add build infra and device probe X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=185656e7c9c8e26d6b93903b35518ef7b6c0c17e;p=dpdk.git raw/octeontx2_dma: add build infra and device probe Add the make and meson based build infrastructure along with the DMA device probe with documentation infrastructure. Signed-off-by: Jerin Jacob Signed-off-by: Satha Rao Signed-off-by: Vamsi Attunuru --- diff --git a/MAINTAINERS b/MAINTAINERS index 6054220777..e35cc9a7a8 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1105,6 +1105,12 @@ M: Nipun Gupta F: drivers/raw/dpaa2_cmdif/ F: doc/guides/rawdevs/dpaa2_cmdif.rst +Marvell OCTEON TX2 DMA +M: Satha Rao +M: Vamsi Attunuru +F: drivers/raw/octeontx2_dma/ +F: doc/guides/rawdevs/octeontx2_dma.rst + Packet processing ----------------- diff --git a/config/common_base b/config/common_base index f68107e7a2..9ace507589 100644 --- a/config/common_base +++ b/config/common_base @@ -762,6 +762,11 @@ CONFIG_RTE_LIBRTE_PMD_IFPGA_RAWDEV=y # CONFIG_RTE_LIBRTE_PMD_IOAT_RAWDEV=y +# +# Compile PMD for octeontx2 DMA raw device +# +CONFIG_RTE_LIBRTE_PMD_OCTEONTX2_DMA_RAWDEV=y + # # Compile librte_ring # diff --git a/doc/guides/platform/octeontx2.rst b/doc/guides/platform/octeontx2.rst index fbf1193e74..b2a4c030ca 100644 --- a/doc/guides/platform/octeontx2.rst +++ b/doc/guides/platform/octeontx2.rst @@ -104,6 +104,9 @@ This section lists dataplane H/W block(s) available in OCTEON TX2 SoC. #. **Event Device Driver** See :doc:`../eventdevs/octeontx2` for SSO event device driver information. +#. **DMA Rawdev Driver** + See :doc:`../rawdevs/octeontx2_dma` for DMA driver information. + Procedure to Setup Platform --------------------------- @@ -146,6 +149,8 @@ compatible board: # Enable if netdev VF driver required CONFIG_OCTEONTX2_VF=y CONFIG_CRYPTO_DEV_OCTEONTX2_CPT=y + # Enable if OCTEONTX2 DMA PF driver required + CONFIG_OCTEONTX2_DPI_PF=n 2. **ARM64 Linux Tool Chain** diff --git a/doc/guides/rawdevs/index.rst b/doc/guides/rawdevs/index.rst index 0a21989e45..413c543239 100644 --- a/doc/guides/rawdevs/index.rst +++ b/doc/guides/rawdevs/index.rst @@ -15,3 +15,4 @@ application through rawdev API. dpaa2_qdma ifpga_rawdev ioat_rawdev + octeontx2_dma diff --git a/doc/guides/rawdevs/octeontx2_dma.rst b/doc/guides/rawdevs/octeontx2_dma.rst new file mode 100644 index 0000000000..34807bde4f --- /dev/null +++ b/doc/guides/rawdevs/octeontx2_dma.rst @@ -0,0 +1,64 @@ +.. SPDX-License-Identifier: BSD-3-Clause + Copyright(c) 2019 Marvell International Ltd. + +OCTEON TX2 DMA Driver +===================== + +OCTEON TX2 has an internal DMA unit which can be used by applications to initiate +DMA transaction internally, from/to host when OCTEON TX2 operates in PCIe End +Point mode. The DMA PF function supports 8 VFs corresponding to 8 DMA queues. +Each DMA queue was exposed as a VF function when SRIOV enabled. + +Features +-------- + +This DMA PMD supports below 3 modes of memory transfers + +#. Internal - OCTEON TX2 DRAM to DRAM without core intervention + +#. Inbound - Host DRAM to OCTEON TX2 DRAM without host/OCTEON TX2 cores involvement + +#. Outbound - OCTEON TX2 DRAM to Host DRAM without host/OCTEON TX2 cores involvement + +Prerequisites and Compilation procedure +--------------------------------------- + + See :doc:`../platform/octeontx2` for setup information. + + +Pre-Installation Configuration +------------------------------ + +Config File Options +~~~~~~~~~~~~~~~~~~~ + +The following options can be modified in the ``config`` file. + +- ``CONFIG_RTE_LIBRTE_PMD_OCTEONTX2_DMA_RAWDEV`` (default ``y``) + + Toggle compilation of the ``lrte_pmd_octeontx2_dma`` driver. + +Enabling logs +------------- + +For enabling logs, use the following EAL parameter: + +.. code-block:: console + + ./your_dma_application --log-level=pmd.raw.octeontx2.dpi, + +Using ``pmd.raw.octeontx2.dpi`` as log matching criteria, all Event PMD logs +can be enabled which are lower than logging ``level``. + +Initialization +-------------- + +The number of DMA VFs (queues) enabled can be controlled by setting sysfs +entry, `sriov_numvfs` for the corresponding PF driver. + +.. code-block:: console + + echo > /sys/bus/pci/drivers/octeontx2-dpi/0000\:05\:00.0/sriov_numvfs + +Once the required VFs are enabled, to be accessible from DPDK, VFs need to be +bound to vfio-pci driver. diff --git a/drivers/raw/Makefile b/drivers/raw/Makefile index c1b85c8c72..5be58057aa 100644 --- a/drivers/raw/Makefile +++ b/drivers/raw/Makefile @@ -11,5 +11,6 @@ DIRS-$(CONFIG_RTE_LIBRTE_PMD_DPAA2_QDMA_RAWDEV) += dpaa2_qdma endif DIRS-$(CONFIG_RTE_LIBRTE_PMD_IFPGA_RAWDEV) += ifpga_rawdev DIRS-$(CONFIG_RTE_LIBRTE_PMD_IOAT_RAWDEV) += ioat +DIRS-$(CONFIG_RTE_LIBRTE_PMD_OCTEONTX2_DMA_RAWDEV) += octeontx2_dma include $(RTE_SDK)/mk/rte.subdir.mk diff --git a/drivers/raw/meson.build b/drivers/raw/meson.build index 2af8a70d45..64db944560 100644 --- a/drivers/raw/meson.build +++ b/drivers/raw/meson.build @@ -3,6 +3,7 @@ drivers = ['dpaa2_cmdif', 'dpaa2_qdma', 'ifpga_rawdev', 'ioat', + 'octeontx2_dma', 'skeleton_rawdev'] std_deps = ['rawdev'] config_flag_fmt = 'RTE_LIBRTE_PMD_@0@_RAWDEV' diff --git a/drivers/raw/octeontx2_dma/Makefile b/drivers/raw/octeontx2_dma/Makefile new file mode 100644 index 0000000000..1892c1e27b --- /dev/null +++ b/drivers/raw/octeontx2_dma/Makefile @@ -0,0 +1,25 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright(C) 2019 Marvell International Ltd. +# + +include $(RTE_SDK)/mk/rte.vars.mk + +# library name +LIB = librte_pmd_octeontx2_dma.a + +CFLAGS += -O3 $(WERROR_FLAGS) +CFLAGS += -I$(RTE_SDK)/drivers/common/octeontx2/ +CFLAGS += -I$(RTE_SDK)/drivers/raw/octeontx2_dma/ +LDLIBS += -lrte_eal -lrte_rawdev -lrte_bus_pci +LDLIBS += -lrte_common_octeontx2 + +EXPORT_MAP := rte_pmd_octeontx2_dma_version.map + +LIBABIVER := 1 + +# +# all source are stored in SRCS-y +# +SRCS-$(CONFIG_RTE_LIBRTE_PMD_OCTEONTX2_DMA_RAWDEV) += otx2_dpi_rawdev.c + +include $(RTE_SDK)/mk/rte.lib.mk diff --git a/drivers/raw/octeontx2_dma/meson.build b/drivers/raw/octeontx2_dma/meson.build new file mode 100644 index 0000000000..76a7b1645c --- /dev/null +++ b/drivers/raw/octeontx2_dma/meson.build @@ -0,0 +1,6 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright(C) 2019 Marvell International Ltd. +# + +deps += ['bus_pci', 'common_octeontx2', 'rawdev'] +sources = files('otx2_dpi_rawdev.c') diff --git a/drivers/raw/octeontx2_dma/otx2_dpi_rawdev.c b/drivers/raw/octeontx2_dma/otx2_dpi_rawdev.c new file mode 100644 index 0000000000..c363bf44df --- /dev/null +++ b/drivers/raw/octeontx2_dma/otx2_dpi_rawdev.c @@ -0,0 +1,99 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(C) 2019 Marvell International Ltd. + */ + +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include + +static const struct rte_pci_id pci_dma_map[] = { + { + RTE_PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, + PCI_DEVID_OCTEONTX2_DPI_VF) + }, + { + .vendor_id = 0, + }, +}; + +static int +otx2_dpi_rawdev_probe(struct rte_pci_driver *pci_drv __rte_unused, + struct rte_pci_device *pci_dev) +{ + char name[RTE_RAWDEV_NAME_MAX_LEN]; + struct rte_rawdev *rawdev; + + /* For secondary processes, the primary has done all the work */ + if (rte_eal_process_type() != RTE_PROC_PRIMARY) + return 0; + + if (pci_dev->mem_resource[0].addr == NULL) { + otx2_dpi_dbg("Empty bars %p %p", pci_dev->mem_resource[0].addr, + pci_dev->mem_resource[2].addr); + return -ENODEV; + } + + memset(name, 0, sizeof(name)); + snprintf(name, RTE_RAWDEV_NAME_MAX_LEN, "DPI:%x:%02x.%x", + pci_dev->addr.bus, pci_dev->addr.devid, + pci_dev->addr.function); + + /* Allocate device structure */ + rawdev = rte_rawdev_pmd_allocate(name, 0, rte_socket_id()); + if (rawdev == NULL) { + otx2_err("Rawdev allocation failed"); + return -EINVAL; + } + + rawdev->device = &pci_dev->device; + rawdev->driver_name = pci_dev->driver->driver.name; + + return 0; +} + +static int +otx2_dpi_rawdev_remove(struct rte_pci_device *pci_dev) +{ + char name[RTE_RAWDEV_NAME_MAX_LEN]; + struct rte_rawdev *rawdev; + + if (pci_dev == NULL) { + otx2_dpi_dbg("Invalid pci_dev of the device!"); + return -EINVAL; + } + + memset(name, 0, sizeof(name)); + snprintf(name, RTE_RAWDEV_NAME_MAX_LEN, "DPI:%x:%02x.%x", + pci_dev->addr.bus, pci_dev->addr.devid, + pci_dev->addr.function); + + rawdev = rte_rawdev_pmd_get_named_dev(name); + if (rawdev == NULL) { + otx2_dpi_dbg("Invalid device name (%s)", name); + return -EINVAL; + } + + /* rte_rawdev_close is called by pmd_release */ + return rte_rawdev_pmd_release(rawdev); +} + +static struct rte_pci_driver rte_dpi_rawdev_pmd = { + .id_table = pci_dma_map, + .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_IOVA_AS_VA, + .probe = otx2_dpi_rawdev_probe, + .remove = otx2_dpi_rawdev_remove, +}; + +RTE_PMD_REGISTER_PCI(dpi_rawdev_pci_driver, rte_dpi_rawdev_pmd); +RTE_PMD_REGISTER_PCI_TABLE(dpi_rawdev_pci_driver, pci_dma_map); +RTE_PMD_REGISTER_KMOD_DEP(dpi_rawdev_pci_driver, "vfio-pci"); diff --git a/drivers/raw/octeontx2_dma/rte_pmd_octeontx2_dma_version.map b/drivers/raw/octeontx2_dma/rte_pmd_octeontx2_dma_version.map new file mode 100644 index 0000000000..9a61188cd5 --- /dev/null +++ b/drivers/raw/octeontx2_dma/rte_pmd_octeontx2_dma_version.map @@ -0,0 +1,4 @@ +DPDK_19.08 { + + local: *; +}; diff --git a/mk/rte.app.mk b/mk/rte.app.mk index 30f9a12da3..15a6f74215 100644 --- a/mk/rte.app.mk +++ b/mk/rte.app.mk @@ -110,6 +110,7 @@ _LDLIBS-y += -lrte_common_octeontx endif OCTEONTX2-y := $(CONFIG_RTE_LIBRTE_OCTEONTX2_MEMPOOL) OCTEONTX2-y += $(CONFIG_RTE_LIBRTE_PMD_OCTEONTX2_EVENTDEV) +OCTEONTX2-y += $(CONFIG_RTE_LIBRTE_PMD_OCTEONTX2_DMA_RAWDEV) ifeq ($(findstring y,$(OCTEONTX2-y)),y) _LDLIBS-y += -lrte_common_octeontx2 endif @@ -310,6 +311,7 @@ _LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_IFPGA_RAWDEV) += -lrte_pmd_ifpga_rawdev _LDLIBS-$(CONFIG_RTE_LIBRTE_IPN3KE_PMD) += -lrte_pmd_ipn3ke endif # CONFIG_RTE_LIBRTE_IFPGA_BUS _LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_IOAT_RAWDEV) += -lrte_pmd_ioat_rawdev +_LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_OCTEONTX2_DMA_RAWDEV) += -lrte_pmd_octeontx2_dma endif # CONFIG_RTE_LIBRTE_RAWDEV endif # !CONFIG_RTE_BUILD_SHARED_LIBS