New upstream version 18.02

[deb_dpdk.git] / lib / librte_eal / linuxapp / eal / eal_vfio.h

diff --git a/lib/librte_eal/linuxapp/eal/eal_vfio.h b/lib/librte_eal/linuxapp/eal/eal_vfio.h
index 5ff63e5..8059577 100644 (file)
--- a/lib/librte_eal/linuxapp/eal/eal_vfio.h
+++ b/lib/librte_eal/linuxapp/eal/eal_vfio.h
@@ -1,34 +1,5 @@
-/*-
- *   BSD LICENSE
- *
- *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
- *   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.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2014 Intel Corporation
  */
 
 #ifndef EAL_VFIO_H_
@@ -37,20 +8,18 @@
 /*
  * determine if VFIO is present on the system
  */
-#ifdef RTE_EAL_VFIO
+#if !defined(VFIO_PRESENT) && defined(RTE_EAL_VFIO)
 #include <linux/version.h>
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 6, 0)
-#include <linux/vfio.h>
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 10, 0)
-#define RTE_PCI_MSIX_TABLE_BIR    0x7
-#define RTE_PCI_MSIX_TABLE_OFFSET 0xfffffff8
-#define RTE_PCI_MSIX_FLAGS_QSIZE  0x07ff
+#define VFIO_PRESENT
 #else
-#define RTE_PCI_MSIX_TABLE_BIR    PCI_MSIX_TABLE_BIR
-#define RTE_PCI_MSIX_TABLE_OFFSET PCI_MSIX_TABLE_OFFSET
-#define RTE_PCI_MSIX_FLAGS_QSIZE  PCI_MSIX_FLAGS_QSIZE
-#endif
+#pragma message("VFIO configured but not supported by this kernel, disabling.")
+#endif /* kernel version >= 3.6.0 */
+#endif /* RTE_EAL_VFIO */
+
+#ifdef VFIO_PRESENT
+
+#include <linux/vfio.h>
 
 #define RTE_VFIO_TYPE1 VFIO_TYPE1_IOMMU
 
@@ -116,7 +85,7 @@ struct vfio_iommu_spapr_tce_info {
 #define RTE_VFIO_NOIOMMU VFIO_NOIOMMU_IOMMU
 #endif
 
-#define VFIO_MAX_GROUPS 64
+#define VFIO_MAX_GROUPS RTE_MAX_VFIO_GROUPS
 
 /*
  * Function prototypes for VFIO multiprocess sync functions
@@ -144,13 +113,6 @@ struct vfio_config {
        struct vfio_group vfio_groups[VFIO_MAX_GROUPS];
 };
 
-#define VFIO_DIR "/dev/vfio"
-#define VFIO_CONTAINER_PATH "/dev/vfio/vfio"
-#define VFIO_GROUP_FMT "/dev/vfio/%u"
-#define VFIO_NOIOMMU_GROUP_FMT "/dev/vfio/noiommu-%u"
-#define VFIO_GET_REGION_ADDR(x) ((uint64_t) x << 40ULL)
-#define VFIO_GET_REGION_IDX(x) (x >> 40)
-
 /* DMA mapping function prototype.
  * Takes VFIO container fd as a parameter.
  * Returns 0 on success, -1 on error.
@@ -186,28 +148,6 @@ vfio_get_group_no(const char *sysfs_base,
 int
 vfio_get_group_fd(int iommu_group_no);
 
-/* remove group fd from internal VFIO group fd array */
-int
-clear_group(int vfio_group_fd);
-
-/**
- * Setup vfio_cfg for the device identified by its address. It discovers
- * the configured I/O MMU groups or sets a new one for the device. If a new
- * groups is assigned, the DMA mapping is performed.
- * Returns 0 on success, a negative value on failure and a positive value in
- * case the given device cannot be managed this way.
- */
-int vfio_setup_device(const char *sysfs_base, const char *dev_addr,
-               int *vfio_dev_fd, struct vfio_device_info *device_info);
-
-int vfio_release_device(const char *sysfs_base, const char *dev_addr, int fd);
-
-int vfio_enable(const char *modname);
-int vfio_is_enabled(const char *modname);
-
-int pci_vfio_enable(void);
-int pci_vfio_is_enabled(void);
-
 int vfio_mp_sync_setup(void);
 
 #define SOCKET_REQ_CONTAINER 0x100
@@ -217,8 +157,6 @@ int vfio_mp_sync_setup(void);
 #define SOCKET_NO_FD 0x1
 #define SOCKET_ERR 0xFF
 
-#define VFIO_PRESENT
-#endif /* kernel version */
-#endif /* RTE_EAL_VFIO */
+#endif /* VFIO_PRESENT */
 
 #endif /* EAL_VFIO_H_ */