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authorLuca Boccassi <luca.boccassi@gmail.com>2017-11-08 14:15:11 +0000
committerLuca Boccassi <luca.boccassi@gmail.com>2017-11-08 14:45:54 +0000
commit055c52583a2794da8ba1e85a48cce3832372b12f (patch)
tree8ceb1cb78fbb46a0f341f8ee24feb3c6b5540013 /drivers/bus/pci/linux/pci_init.h
parentf239aed5e674965691846e8ce3f187dd47523689 (diff)
New upstream version 17.11-rc3
Change-Id: I6a5baa40612fe0c20f30b5fa773a6cbbac63a685 Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>
Diffstat (limited to 'drivers/bus/pci/linux/pci_init.h')
-rw-r--r--drivers/bus/pci/linux/pci_init.h111
1 files changed, 111 insertions, 0 deletions
diff --git a/drivers/bus/pci/linux/pci_init.h b/drivers/bus/pci/linux/pci_init.h
new file mode 100644
index 00000000..f342c47d
--- /dev/null
+++ b/drivers/bus/pci/linux/pci_init.h
@@ -0,0 +1,111 @@
+/*-
+ * 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.
+ */
+
+#ifndef EAL_PCI_INIT_H_
+#define EAL_PCI_INIT_H_
+
+#include <linux/version.h>
+
+#include <rte_vfio.h>
+
+/** IO resource type: */
+#define IORESOURCE_IO 0x00000100
+#define IORESOURCE_MEM 0x00000200
+
+/*
+ * Helper function to map PCI resources right after hugepages in virtual memory
+ */
+extern void *pci_map_addr;
+void *pci_find_max_end_va(void);
+
+/* parse one line of the "resource" sysfs file (note that the 'line'
+ * string is modified)
+ */
+int pci_parse_one_sysfs_resource(char *line, size_t len, uint64_t *phys_addr,
+ uint64_t *end_addr, uint64_t *flags);
+
+int pci_uio_alloc_resource(struct rte_pci_device *dev,
+ struct mapped_pci_resource **uio_res);
+void pci_uio_free_resource(struct rte_pci_device *dev,
+ struct mapped_pci_resource *uio_res);
+int pci_uio_map_resource_by_index(struct rte_pci_device *dev, int res_idx,
+ struct mapped_pci_resource *uio_res, int map_idx);
+
+int pci_uio_read_config(const struct rte_intr_handle *intr_handle,
+ void *buf, size_t len, off_t offs);
+int pci_uio_write_config(const struct rte_intr_handle *intr_handle,
+ const void *buf, size_t len, off_t offs);
+
+int pci_uio_ioport_map(struct rte_pci_device *dev, int bar,
+ struct rte_pci_ioport *p);
+void pci_uio_ioport_read(struct rte_pci_ioport *p,
+ void *data, size_t len, off_t offset);
+void pci_uio_ioport_write(struct rte_pci_ioport *p,
+ const void *data, size_t len, off_t offset);
+int pci_uio_ioport_unmap(struct rte_pci_ioport *p);
+
+#ifdef VFIO_PRESENT
+
+#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
+#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
+
+/* access config space */
+int pci_vfio_read_config(const struct rte_intr_handle *intr_handle,
+ void *buf, size_t len, off_t offs);
+int pci_vfio_write_config(const struct rte_intr_handle *intr_handle,
+ const void *buf, size_t len, off_t offs);
+
+int pci_vfio_ioport_map(struct rte_pci_device *dev, int bar,
+ struct rte_pci_ioport *p);
+void pci_vfio_ioport_read(struct rte_pci_ioport *p,
+ void *data, size_t len, off_t offset);
+void pci_vfio_ioport_write(struct rte_pci_ioport *p,
+ const void *data, size_t len, off_t offset);
+int pci_vfio_ioport_unmap(struct rte_pci_ioport *p);
+
+/* map/unmap VFIO resource prototype */
+int pci_vfio_map_resource(struct rte_pci_device *dev);
+int pci_vfio_unmap_resource(struct rte_pci_device *dev);
+
+int pci_vfio_is_enabled(void);
+
+#endif
+
+#endif /* EAL_PCI_INIT_H_ */