bus/pci: remove unnecessary cast

[dpdk.git] / drivers / bus / pci / private.h

diff --git a/drivers/bus/pci/private.h b/drivers/bus/pci/private.h
index 04bffa6..16f997c 100644 (file)
--- a/drivers/bus/pci/private.h
+++ b/drivers/bus/pci/private.h
@@ -15,18 +15,6 @@ extern struct rte_pci_bus rte_pci_bus;
 struct rte_pci_driver;
 struct rte_pci_device;
 
-extern struct rte_pci_bus rte_pci_bus;
-
-/**
- * Probe the PCI bus
- *
- * @return
- *   - 0 on success.
- *   - !0 on error.
- */
-int
-rte_pci_probe(void);
-
 /**
  * Scan the content of the PCI bus, and the devices in the devices
  * list
@@ -42,6 +30,17 @@ int rte_pci_scan(void);
 void
 pci_name_set(struct rte_pci_device *dev);
 
+/**
+ * Validate whether a device with given PCI address should be ignored or not.
+ *
+ * @param pci_addr
+ *     PCI address of device to be validated
+ * @return
+ *     true: if device is to be ignored,
+ *     false: if device is to be scanned,
+ */
+bool rte_pci_ignore_device(const struct rte_pci_addr *pci_addr);
+
 /**
  * Add a PCI device to the PCI Bus (append to PCI Device list). This function
  * also updates the bus references of the PCI Device (and the generic device
@@ -80,6 +79,71 @@ void rte_pci_insert_device(struct rte_pci_device *exist_pci_dev,
  */
 int pci_update_device(const struct rte_pci_addr *addr);
 
+/**
+ * A structure describing a PCI mapping.
+ */
+struct pci_map {
+       void *addr;
+       char *path;
+       uint64_t offset;
+       uint64_t size;
+       uint64_t phaddr;
+};
+
+struct pci_msix_table {
+       int bar_index;
+       uint32_t offset;
+       uint32_t size;
+};
+
+/**
+ * A structure describing a mapped PCI resource.
+ * For multi-process we need to reproduce all PCI mappings in secondary
+ * processes, so save them in a tailq.
+ */
+struct mapped_pci_resource {
+       TAILQ_ENTRY(mapped_pci_resource) next;
+
+       struct rte_pci_addr pci_addr;
+       char path[PATH_MAX];
+       int nb_maps;
+       struct pci_map maps[PCI_MAX_RESOURCE];
+       struct pci_msix_table msix_table;
+};
+
+/** mapped pci device list */
+TAILQ_HEAD(mapped_pci_res_list, mapped_pci_resource);
+
+/**
+ * Map a particular resource from a file.
+ *
+ * @param requested_addr
+ *      The starting address for the new mapping range.
+ * @param fd
+ *      The file descriptor.
+ * @param offset
+ *      The offset for the mapping range.
+ * @param size
+ *      The size for the mapping range.
+ * @param additional_flags
+ *      The additional rte_mem_map() flags for the mapping range.
+ * @return
+ *   - On success, the function returns a pointer to the mapped area.
+ *   - On error, NULL is returned.
+ */
+void *pci_map_resource(void *requested_addr, int fd, off_t offset,
+               size_t size, int additional_flags);
+
+/**
+ * Unmap a particular resource.
+ *
+ * @param requested_addr
+ *      The address for the unmapping range.
+ * @param size
+ *      The size for the unmapping range.
+ */
+void pci_unmap_resource(void *requested_addr, size_t size);
+
 /**
  * Map the PCI resource of a PCI device in virtual memory
  *
@@ -126,6 +190,18 @@ int pci_uio_alloc_resource(struct rte_pci_device *dev,
 void pci_uio_free_resource(struct rte_pci_device *dev,
                struct mapped_pci_resource *uio_res);
 
+/**
+ * Remap the PCI resource of a PCI device in anonymous virtual memory.
+ *
+ * @param dev
+ *   Point to the struct rte pci device.
+ * @return
+ *   - On success, zero.
+ *   - On failure, a negative value.
+ */
+int
+pci_uio_remap_resource(struct rte_pci_device *dev);
+
 /**
  * Map device memory to uio resource
  *
@@ -160,6 +236,17 @@ int
 rte_pci_match(const struct rte_pci_driver *pci_drv,
              const struct rte_pci_device *pci_dev);
 
+/**
+ * OS specific callbacks for rte_pci_get_iommu_class
+ *
+ */
+bool
+pci_device_iommu_support_va(const struct rte_pci_device *dev);
+
+enum rte_iova_mode
+pci_device_iova_mode(const struct rte_pci_driver *pci_drv,
+                    const struct rte_pci_device *pci_dev);
+
 /**
  * Get iommu class of PCI devices on the bus.
  * And return their preferred iova mapping mode.