8f7d9ec2f4
The VFIO container must have at least one device present to be able to perform DMA mapping operations. Instead of using the count of SPDK devices, use the count of DPDK devices. This allows for the user of SPDK's memory management APIs even if only a DPDK device is attached. Change-Id: Ie7e21f09bdf1cdf1a85424c35212f64f24ae4e26 Signed-off-by: Ben Walker <benjamin.walker@intel.com> Signed-off-by: Maciej Szwed <maciej.szwed@intel.com> Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/3874 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Changpeng Liu <changpeng.liu@intel.com> Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
100 lines
3.4 KiB
C
100 lines
3.4 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (c) Intel Corporation.
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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
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Intel Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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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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#include <rte_bus.h>
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#include <rte_pci.h>
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#include <rte_bus_pci.h>
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#include <rte_dev.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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#define SPDK_PCI_DRIVER_MAX_NAME_LEN 32
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struct spdk_pci_driver {
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struct rte_pci_driver driver;
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const char *name;
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const struct spdk_pci_id *id_table;
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uint32_t drv_flags;
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spdk_pci_enum_cb cb_fn;
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void *cb_arg;
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TAILQ_ENTRY(spdk_pci_driver) tailq;
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};
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int pci_device_init(struct rte_pci_driver *driver, struct rte_pci_device *device);
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int pci_device_fini(struct rte_pci_device *device);
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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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void vtophys_fini(void);
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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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