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