396c445cb1
We will use this in a future patch to determine whether it's safe to use DPDK allocated memory when allocating new 1gb page entries. We could use it in this patch to decide whether or not to register the memory hotplug handler, but there's really no harm registering it even when it's not needed. Ideally DPDK would provide some kind of API to query how DPDK was configured. In the normal case we know whether legacy-mem was specified, but if users initialize DPDK themselves and then call spdk_env_dpdk_post_init(), we won't know if legacy-mem was specified. So in that case, we will just assume that it wasn't specified. Signed-off-by: Jim Harris <james.r.harris@intel.com> Change-Id: Ied0e5ff777c8ee651043f46a37ce62e44bfcc5fe Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/477086 Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> Reviewed-by: Changpeng Liu <changpeng.liu@intel.com> Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com> Reviewed-by: Ben Walker <benjamin.walker@intel.com> Community-CI: SPDK CI Jenkins <sys_sgci@intel.com>
100 lines
3.5 KiB
C
100 lines
3.5 KiB
C
/*-
|
|
* BSD LICENSE
|
|
*
|
|
* Copyright (c) Intel Corporation.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * 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.
|
|
* * Neither the name of Intel Corporation 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
|
|
* OWNER 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.
|
|
*/
|
|
|
|
#ifndef SPDK_ENV_INTERNAL_H
|
|
#define SPDK_ENV_INTERNAL_H
|
|
|
|
#include "spdk/stdinc.h"
|
|
|
|
#include "spdk/env.h"
|
|
|
|
#include <rte_config.h>
|
|
#include <rte_version.h>
|
|
#include <rte_eal.h>
|
|
#include <rte_bus.h>
|
|
#include <rte_pci.h>
|
|
#include <rte_bus_pci.h>
|
|
#include <rte_dev.h>
|
|
|
|
#if RTE_VERSION < RTE_VERSION_NUM(17, 11, 0, 0)
|
|
#error RTE_VERSION is too old! Minimum 17.11 is required.
|
|
#endif
|
|
|
|
/* x86-64 and ARM userspace virtual addresses use only the low 48 bits [0..47],
|
|
* which is enough to cover 256 TB.
|
|
*/
|
|
#define SHIFT_256TB 48 /* (1 << 48) == 256 TB */
|
|
#define MASK_256TB ((1ULL << SHIFT_256TB) - 1)
|
|
|
|
#define SHIFT_1GB 30 /* (1 << 30) == 1 GB */
|
|
#define MASK_1GB ((1ULL << SHIFT_1GB) - 1)
|
|
|
|
#define SPDK_PMD_REGISTER_PCI(pci_drv) \
|
|
__attribute__((constructor)) static void pci_drv ## _register(void) \
|
|
{ \
|
|
spdk_pci_driver_register(&pci_drv); \
|
|
}
|
|
|
|
struct spdk_pci_driver {
|
|
struct rte_pci_driver driver;
|
|
spdk_pci_enum_cb cb_fn;
|
|
void *cb_arg;
|
|
bool is_registered;
|
|
TAILQ_ENTRY(spdk_pci_driver) tailq;
|
|
};
|
|
|
|
void spdk_pci_driver_register(struct spdk_pci_driver *driver);
|
|
int spdk_pci_device_init(struct rte_pci_driver *driver, struct rte_pci_device *device);
|
|
int spdk_pci_device_fini(struct rte_pci_device *device);
|
|
|
|
void spdk_pci_init(void);
|
|
void spdk_pci_fini(void);
|
|
int spdk_mem_map_init(bool legacy_mem);
|
|
int spdk_vtophys_init(void);
|
|
|
|
/**
|
|
* Report a DMA-capable PCI device to the vtophys translation code.
|
|
* Increases the refcount of active DMA-capable devices managed by SPDK.
|
|
* This must be called after a `rte_pci_device` is created.
|
|
*/
|
|
void spdk_vtophys_pci_device_added(struct rte_pci_device *pci_device);
|
|
|
|
/**
|
|
* Report the removal of a DMA-capable PCI device to the vtophys translation code.
|
|
* Decreases the refcount of active DMA-capable devices managed by SPDK.
|
|
* This must be called before a `rte_pci_device` is destroyed.
|
|
*/
|
|
void spdk_vtophys_pci_device_removed(struct rte_pci_device *pci_device);
|
|
|
|
#endif
|