New upstream version 17.11-rc3

[deb_dpdk.git] / drivers / bus / pci / linux / pci_init.h

diff --git a/drivers/bus/pci/linux/pci_init.h b/drivers/bus/pci/linux/pci_init.h
new file mode 100644 (file)
index 0000000..f342c47
--- /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_ */