From: Tomasz Duszynski Date: Mon, 21 Jun 2021 15:04:26 +0000 (+0200) Subject: raw/cnxk_bphy: add BPHY CGX/RPM skeleton driver X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=3d27e49e0722b89d93140d3421f40d61061f2c84;p=dpdk.git raw/cnxk_bphy: add BPHY CGX/RPM skeleton driver Add baseband PHY CGX/RPM skeleton driver which merely probes a matching device. CGX/RPM are Ethernet MACs hardwired to baseband subsystem. Signed-off-by: Tomasz Duszynski Signed-off-by: Jakub Palider Reviewed-by: Jerin Jacob --- diff --git a/MAINTAINERS b/MAINTAINERS index 9b0d0d4348..c7887c9ce7 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1292,6 +1292,12 @@ M: Nipun Gupta F: drivers/raw/dpaa2_cmdif/ F: doc/guides/rawdevs/dpaa2_cmdif.rst +Marvell CNXK BPHY +M: Jakub Palider +M: Tomasz Duszynski +F: doc/guides/rawdevs/cnxk_bphy.rst +F: drivers/raw/cnxk_bphy/ + Marvell OCTEON TX2 DMA M: Radha Mohan Chintakuntla M: Veerasenareddy Burru @@ -1312,7 +1318,6 @@ F: doc/guides/rawdevs/ntb.rst F: examples/ntb/ F: doc/guides/sample_app_ug/ntb.rst - Packet processing ----------------- diff --git a/doc/guides/platform/cnxk.rst b/doc/guides/platform/cnxk.rst index cebb3d08a8..a6ba42249e 100644 --- a/doc/guides/platform/cnxk.rst +++ b/doc/guides/platform/cnxk.rst @@ -145,6 +145,9 @@ This section lists dataplane H/W block(s) available in cnxk SoC. #. **Mempool Driver** See :doc:`../mempool/cnxk` for NPA mempool driver information. +#. **Baseband PHY Driver** + See :doc:`../rawdevs/cnxk_bphy` for Baseband PHY driver information. + Procedure to Setup Platform --------------------------- diff --git a/doc/guides/rawdevs/cnxk_bphy.rst b/doc/guides/rawdevs/cnxk_bphy.rst new file mode 100644 index 0000000000..96ab684354 --- /dev/null +++ b/doc/guides/rawdevs/cnxk_bphy.rst @@ -0,0 +1,23 @@ +.. SPDX-License-Identifier: BSD-3-Clause + Copyright(c) 2021 Marvell. + +Marvell CNXK BPHY Driver +======================== + +CN10K/CN9K Fusion product families offer an internal BPHY unit which provides +set of hardware accelerators for performing baseband related operations. +Connectivity to the outside world happens through a block called RFOE which is +backed by ethernet I/O block called CGX or RPM (depending on the chip version). +RFOE stands for Radio Frequency Over Ethernet and provides support for +IEEE 1904.3 (RoE) standard. + +Device Setup +------------ + +The BPHY CGX/RPM devices will need to be bound to a user-space IO driver for +use. The script ``dpdk-devbind.py`` script included with DPDK can be used to +view the state of the devices and to bind them to a suitable DPDK-supported +kernel driver. When querying the status of the devices, they will appear under +the category of "Misc (rawdev) devices", i.e. the command +``dpdk-devbind.py --status-dev misc`` can be used to see the state of those +devices alone. diff --git a/doc/guides/rawdevs/index.rst b/doc/guides/rawdevs/index.rst index f64ec44271..7fbae40ea9 100644 --- a/doc/guides/rawdevs/index.rst +++ b/doc/guides/rawdevs/index.rst @@ -11,6 +11,7 @@ application through rawdev API. :maxdepth: 2 :numbered: + cnxk_bphy dpaa2_cmdif dpaa2_qdma ifpga diff --git a/doc/guides/rel_notes/release_21_08.rst b/doc/guides/rel_notes/release_21_08.rst index 63fde75599..0a05cb02fa 100644 --- a/doc/guides/rel_notes/release_21_08.rst +++ b/doc/guides/rel_notes/release_21_08.rst @@ -61,6 +61,13 @@ New Features representing sub-domains of functionality. Each auxiliary device represents a part of its parent functionality. +* **Added Baseband PHY CNXK PMD.** + + Added Baseband PHY PMD which allows to configure BPHY hardware block + comprising accelerators and DSPs specifically tailored for 5G/LTE inline + usecases. Configuration happens via standard rawdev enq/deq operations. See + the :doc:`../rawdevs/cnxk_bphy` rawdev guide for more details on this driver. + Removed Items ------------- diff --git a/drivers/raw/cnxk_bphy/cnxk_bphy_cgx.c b/drivers/raw/cnxk_bphy/cnxk_bphy_cgx.c new file mode 100644 index 0000000000..e537888f9a --- /dev/null +++ b/drivers/raw/cnxk_bphy/cnxk_bphy_cgx.c @@ -0,0 +1,151 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(C) 2021 Marvell. + */ +#include +#include +#include + +#include + +struct cnxk_bphy_cgx_queue { + unsigned int lmac; + /* queue holds up to one response */ + void *rsp; +}; + +struct cnxk_bphy_cgx { + struct roc_bphy_cgx *rcgx; + struct cnxk_bphy_cgx_queue queues[MAX_LMACS_PER_CGX]; + unsigned int num_queues; +}; + +static void +cnxk_bphy_cgx_format_name(char *name, unsigned int len, + struct rte_pci_device *pci_dev) +{ + snprintf(name, len, "BPHY_CGX:%x:%02x.%x", pci_dev->addr.bus, + pci_dev->addr.devid, pci_dev->addr.function); +} + +static const struct rte_rawdev_ops cnxk_bphy_cgx_rawdev_ops = { +}; + +static void +cnxk_bphy_cgx_init_queues(struct cnxk_bphy_cgx *cgx) +{ + struct roc_bphy_cgx *rcgx = cgx->rcgx; + unsigned int i; + + for (i = 0; i < RTE_DIM(cgx->queues); i++) { + if (!(rcgx->lmac_bmap & BIT_ULL(i))) + continue; + + cgx->queues[cgx->num_queues++].lmac = i; + } +} + +static void +cnxk_bphy_cgx_fini_queues(struct cnxk_bphy_cgx *cgx) +{ + unsigned int i; + + for (i = 0; i < cgx->num_queues; i++) { + if (cgx->queues[i].rsp) + rte_free(cgx->queues[i].rsp); + } + + cgx->num_queues = 0; +} + +static int +cnxk_bphy_cgx_rawdev_probe(struct rte_pci_driver *pci_drv, + struct rte_pci_device *pci_dev) +{ + char name[RTE_RAWDEV_NAME_MAX_LEN]; + struct rte_rawdev *rawdev; + struct cnxk_bphy_cgx *cgx; + struct roc_bphy_cgx *rcgx; + int ret; + + RTE_SET_USED(pci_drv); + + if (rte_eal_process_type() != RTE_PROC_PRIMARY) + return 0; + + if (!pci_dev->mem_resource[0].addr) + return -ENODEV; + + ret = roc_plt_init(); + if (ret) + return ret; + + cnxk_bphy_cgx_format_name(name, sizeof(name), pci_dev); + rawdev = rte_rawdev_pmd_allocate(name, sizeof(*cgx), rte_socket_id()); + if (!rawdev) + return -ENOMEM; + + rawdev->dev_ops = &cnxk_bphy_cgx_rawdev_ops; + rawdev->device = &pci_dev->device; + rawdev->driver_name = pci_dev->driver->driver.name; + + cgx = rawdev->dev_private; + cgx->rcgx = rte_zmalloc(NULL, sizeof(*rcgx), 0); + if (!cgx->rcgx) { + ret = -ENOMEM; + goto out_pmd_release; + } + + rcgx = cgx->rcgx; + rcgx->bar0_pa = pci_dev->mem_resource[0].phys_addr; + rcgx->bar0_va = pci_dev->mem_resource[0].addr; + ret = roc_bphy_cgx_dev_init(rcgx); + if (ret) + goto out_free; + + cnxk_bphy_cgx_init_queues(cgx); + + return 0; +out_free: + rte_free(rcgx); +out_pmd_release: + rte_rawdev_pmd_release(rawdev); + + return ret; +} + +static int +cnxk_bphy_cgx_rawdev_remove(struct rte_pci_device *pci_dev) +{ + char name[RTE_RAWDEV_NAME_MAX_LEN]; + struct rte_rawdev *rawdev; + struct cnxk_bphy_cgx *cgx; + + cnxk_bphy_cgx_format_name(name, sizeof(name), pci_dev); + rawdev = rte_rawdev_pmd_get_named_dev(name); + if (!rawdev) + return -ENODEV; + + cgx = rawdev->dev_private; + cnxk_bphy_cgx_fini_queues(cgx); + roc_bphy_cgx_dev_fini(cgx->rcgx); + rte_free(cgx->rcgx); + + return rte_rawdev_pmd_release(rawdev); +} + +static const struct rte_pci_id cnxk_bphy_cgx_map[] = { + {RTE_PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_CN9K_CGX)}, + {RTE_PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_CN10K_RPM)}, + {} /* sentinel */ +}; + +static struct rte_pci_driver bphy_cgx_rawdev_pmd = { + .id_table = cnxk_bphy_cgx_map, + .drv_flags = RTE_PCI_DRV_NEED_MAPPING, + .probe = cnxk_bphy_cgx_rawdev_probe, + .remove = cnxk_bphy_cgx_rawdev_remove, +}; + +RTE_PMD_REGISTER_PCI(cnxk_bphy_cgx_rawdev_pci_driver, bphy_cgx_rawdev_pmd); +RTE_PMD_REGISTER_PCI_TABLE(cnxk_bphy_cgx_rawdev_pci_driver, cnxk_bphy_cgx_map); +RTE_PMD_REGISTER_KMOD_DEP(cnxk_bphy_cgx_rawdev_pci_driver, "vfio-pci"); diff --git a/drivers/raw/cnxk_bphy/meson.build b/drivers/raw/cnxk_bphy/meson.build new file mode 100644 index 0000000000..78d8081fee --- /dev/null +++ b/drivers/raw/cnxk_bphy/meson.build @@ -0,0 +1,8 @@ +# SPDX-License-Identifier: BSD-3-Clause +# Copyright(C) 2021 Marvell. +# + +deps += ['bus_pci', 'common_cnxk', 'rawdev'] +sources = files( + 'cnxk_bphy_cgx.c', +) diff --git a/drivers/raw/cnxk_bphy/version.map b/drivers/raw/cnxk_bphy/version.map new file mode 100644 index 0000000000..4a76d1d52d --- /dev/null +++ b/drivers/raw/cnxk_bphy/version.map @@ -0,0 +1,3 @@ +DPDK_21 { + local: *; +}; diff --git a/drivers/raw/meson.build b/drivers/raw/meson.build index c33a7c5f3e..b51536f8a7 100644 --- a/drivers/raw/meson.build +++ b/drivers/raw/meson.build @@ -6,6 +6,7 @@ if is_windows endif drivers = [ + 'cnxk_bphy', 'dpaa2_cmdif', 'dpaa2_qdma', 'ifpga', diff --git a/usertools/dpdk-devbind.py b/usertools/dpdk-devbind.py index 2fe0c6a6af..55a73961d8 100755 --- a/usertools/dpdk-devbind.py +++ b/usertools/dpdk-devbind.py @@ -45,6 +45,8 @@ octeontx2_dma = {'Class': '08', 'Vendor': '177d', 'Device': 'a081', 'SVendor': None, 'SDevice': None} octeontx2_ree = {'Class': '08', 'Vendor': '177d', 'Device': 'a0f4', 'SVendor': None, 'SDevice': None} +cnxk_bphy_cgx = {'Class': '08', 'Vendor': '177d', 'Device': 'a059,a060', + 'SVendor': None, 'SDevice': None} intel_dlb = {'Class': '0b', 'Vendor': '8086', 'Device': '270b,2710,2714', 'SVendor': None, 'SDevice': None} @@ -69,7 +71,7 @@ eventdev_devices = [cavium_sso, cavium_tim, intel_dlb, octeontx2_sso] mempool_devices = [cavium_fpa, octeontx2_npa] compress_devices = [cavium_zip] regex_devices = [octeontx2_ree] -misc_devices = [intel_ioat_bdw, intel_ioat_skx, intel_ioat_icx, intel_idxd_spr, +misc_devices = [cnxk_bphy_cgx, intel_ioat_bdw, intel_ioat_skx, intel_ioat_icx, intel_idxd_spr, intel_ntb_skx, intel_ntb_icx, octeontx2_dma]