diff options
Diffstat (limited to 'drivers/net/nfp/nfp_nspu.h')
-rw-r--r-- | drivers/net/nfp/nfp_nspu.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/drivers/net/nfp/nfp_nspu.h b/drivers/net/nfp/nfp_nspu.h new file mode 100644 index 00000000..8c33835e --- /dev/null +++ b/drivers/net/nfp/nfp_nspu.h @@ -0,0 +1,83 @@ +/* + * Copyright (c) 2017 Netronome Systems, Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution + * + * 3. Neither the name of the copyright holder nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ + +/* + * vim:shiftwidth=8:noexpandtab + * + * @file dpdk/pmd/nfp_nspu.h + * + * Netronome NFP_NET PDM driver + */ + +/* + * NSP is the NFP Service Processor. NSPU is NSP Userspace interface. + * + * NFP NSP helps with firmware/hardware configuration. NSP is another component + * in NFP programmable processor and accessing it from host requires to firstly + * configure a specific NFP PCI expansion BAR. + * + * Once access is ready, configuration can be done reading and writing + * from/to a specific PF PCI BAR window. This same interface will allow to + * create other PCI BAR windows for accessing other NFP components. + * + * This file includes low-level functions, using the NSPU interface, and high + * level functions, invoked by the PMD for using NSP services. This allows + * firmware upload, vNIC PCI BARs mapping and other low-level configurations + * like link setup. + * + * NSP access is done during initialization and it is not involved at all with + * the fast path. + */ + +#include <rte_spinlock.h> +#include "nfp_net_eth.h" + +typedef struct { + int nfp; /* NFP device */ + int pcie_bar; /* PF PCI BAR to work with */ + int exp_bar; /* Expansion BAR number used by NSPU */ + int barsz; /* PCIE BAR log2 size */ + uint64_t bufaddr; /* commands buffer address */ + size_t buf_size; /* commands buffer size */ + uint64_t windowsz; /* NSPU BAR window size */ + void *cfg_base; /* Expansion BARs address */ + void *mem_base; /* NSP interface */ + rte_spinlock_t nsp_lock; +} nspu_desc_t; + +int nfp_nspu_init(nspu_desc_t *desc, int nfp, int pcie_bar, size_t pcie_barsz, + int exp_bar, void *exp_bar_cfg_base, void *exp_bar_mmap); +int nfp_nsp_get_abi_version(nspu_desc_t *desc, int *major, int *minor); +int nfp_nsp_fw_setup(nspu_desc_t *desc, const char *sym, uint64_t *pcie_offset); +int nfp_nsp_map_ctrl_bar(nspu_desc_t *desc, uint64_t *pcie_offset); +void nfp_nsp_map_queues_bar(nspu_desc_t *desc, uint64_t *pcie_offset); +int nfp_nsp_eth_config(nspu_desc_t *desc, int port, int up); +int nfp_nsp_eth_read_table(nspu_desc_t *desc, union eth_table_entry **table); |