8acb61ef86
Prepare for storing additional per-device data. The struct doesn't store any interesting data yet, but already has a TAILQ_ENTRY that allows us to put it into a global pci device list. Right now we use the list only to find the SPDK device once the corresponding DPDK device gets removed, but more usages will be implemented soon. Change-Id: If3abc1da60446e0a647d8d4c642f111ebfbcdb9e Signed-off-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com> Reviewed-on: https://review.gerrithub.io/434409 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com> Reviewed-by: Jim Harris <james.r.harris@intel.com>
112 lines
3.9 KiB
C
112 lines
3.9 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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#if RTE_VERSION >= RTE_VERSION_NUM(17, 05, 0, 0)
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#include <rte_bus.h>
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extern struct rte_pci_bus rte_pci_bus;
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#endif
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#include <rte_pci.h>
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#if RTE_VERSION >= RTE_VERSION_NUM(17, 11, 0, 1)
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#include <rte_bus_pci.h>
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#endif
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#include <rte_dev.h>
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#if RTE_VERSION < RTE_VERSION_NUM(16, 11, 0, 0)
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#error RTE_VERSION is too old! Minimum 16.11 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 SHIFT_2MB 21 /* (1 << 21) == 2MB */
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#define MASK_2MB ((1ULL << SHIFT_2MB) - 1)
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#define VALUE_2MB (1 << SHIFT_2MB)
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#define SHIFT_4KB 12 /* (1 << 12) == 4KB */
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#define MASK_4KB ((1ULL << SHIFT_4KB) - 1)
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#define VALUE_4KB (1 << SHIFT_4KB)
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struct spdk_pci_device {
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struct rte_pci_device *dev_handle;
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TAILQ_ENTRY(spdk_pci_device) tailq;
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};
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struct spdk_pci_enum_ctx {
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struct rte_pci_driver driver;
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spdk_pci_enum_cb cb_fn;
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void *cb_arg;
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bool is_registered;
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};
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int spdk_pci_device_init(struct rte_pci_driver *driver, struct rte_pci_device *device);
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int spdk_pci_device_fini(struct rte_pci_device *device);
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int spdk_pci_enumerate(struct spdk_pci_enum_ctx *ctx, spdk_pci_enum_cb enum_cb, void *enum_ctx);
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int spdk_pci_device_attach(struct spdk_pci_enum_ctx *ctx, spdk_pci_enum_cb enum_cb, void *enum_ctx,
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struct spdk_pci_addr *pci_address);
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int spdk_mem_map_init(void);
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int spdk_vtophys_init(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 spdk_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 spdk_vtophys_pci_device_removed(struct rte_pci_device *pci_device);
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#endif
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