11313c2090
Signed-off-by: Jim Harris <james.r.harris@intel.com> Change-Id: I54489903f48a8a2e500f64c2e7f8530eed1e6882 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/14548 Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com> Reviewed-by: Konrad Sztyber <konrad.sztyber@intel.com> Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
53 lines
1.4 KiB
C
53 lines
1.4 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright (c) Intel Corporation.
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* All rights reserved.
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*/
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#ifndef SPDK_ENV_INTERNAL_H
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#define SPDK_ENV_INTERNAL_H
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#include "spdk/stdinc.h"
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#include "spdk/env.h"
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#include <rte_config.h>
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#include <rte_version.h>
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#include <rte_eal.h>
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#if RTE_VERSION < RTE_VERSION_NUM(19, 11, 0, 0)
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#error RTE_VERSION is too old! Minimum 19.11 is required.
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#endif
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/* x86-64 and ARM userspace virtual addresses use only the low 48 bits [0..47],
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* which is enough to cover 256 TB.
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*/
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#define SHIFT_256TB 48 /* (1 << 48) == 256 TB */
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#define MASK_256TB ((1ULL << SHIFT_256TB) - 1)
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#define SHIFT_1GB 30 /* (1 << 30) == 1 GB */
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#define MASK_1GB ((1ULL << SHIFT_1GB) - 1)
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void pci_env_init(void);
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void pci_env_reinit(void);
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void pci_env_fini(void);
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int mem_map_init(bool legacy_mem);
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int vtophys_init(void);
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struct rte_pci_device;
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/**
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* Report a DMA-capable PCI device to the vtophys translation code.
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* Increases the refcount of active DMA-capable devices managed by SPDK.
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* This must be called after a `rte_pci_device` is created.
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*/
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void vtophys_pci_device_added(struct rte_pci_device *pci_device);
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/**
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* Report the removal of a DMA-capable PCI device to the vtophys translation code.
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* Decreases the refcount of active DMA-capable devices managed by SPDK.
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* This must be called before a `rte_pci_device` is destroyed.
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*/
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void vtophys_pci_device_removed(struct rte_pci_device *pci_device);
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#endif
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