net/ice/base: fix NVGRE switch rule programming

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

diff --git a/drivers/bus/pci/rte_bus_pci.h b/drivers/bus/pci/rte_bus_pci.h
index f0d6d81..29bea6d 100644 (file)
--- a/drivers/bus/pci/rte_bus_pci.h
+++ b/drivers/bus/pci/rte_bus_pci.h
@@ -113,6 +113,44 @@ typedef int (pci_probe_t)(struct rte_pci_driver *, struct rte_pci_device *);
  */
 typedef int (pci_remove_t)(struct rte_pci_device *);
 
+/**
+ * Driver-specific DMA mapping. After a successful call the device
+ * will be able to read/write from/to this segment.
+ *
+ * @param dev
+ *   Pointer to the PCI device.
+ * @param addr
+ *   Starting virtual address of memory to be mapped.
+ * @param iova
+ *   Starting IOVA address of memory to be mapped.
+ * @param len
+ *   Length of memory segment being mapped.
+ * @return
+ *   - 0 On success.
+ *   - Negative value and rte_errno is set otherwise.
+ */
+typedef int (pci_dma_map_t)(struct rte_pci_device *dev, void *addr,
+                           uint64_t iova, size_t len);
+
+/**
+ * Driver-specific DMA un-mapping. After a successful call the device
+ * will not be able to read/write from/to this segment.
+ *
+ * @param dev
+ *   Pointer to the PCI device.
+ * @param addr
+ *   Starting virtual address of memory to be unmapped.
+ * @param iova
+ *   Starting IOVA address of memory to be unmapped.
+ * @param len
+ *   Length of memory segment being unmapped.
+ * @return
+ *   - 0 On success.
+ *   - Negative value and rte_errno is set otherwise.
+ */
+typedef int (pci_dma_unmap_t)(struct rte_pci_device *dev, void *addr,
+                             uint64_t iova, size_t len);
+
 /**
  * A structure describing a PCI driver.
  */
@@ -122,6 +160,8 @@ struct rte_pci_driver {
        struct rte_pci_bus *bus;           /**< PCI bus reference. */
        pci_probe_t *probe;                /**< Device Probe function. */
        pci_remove_t *remove;              /**< Device Remove function. */
+       pci_dma_map_t *dma_map;            /**< device dma map function. */
+       pci_dma_unmap_t *dma_unmap;        /**< device dma unmap function. */
        const struct rte_pci_id *id_table; /**< ID table, NULL terminated. */
        uint32_t drv_flags;                /**< Flags RTE_PCI_DRV_*. */
 };
@@ -147,8 +187,8 @@ struct rte_pci_bus {
 #define RTE_PCI_DRV_INTR_RMV 0x0010
 /** Device driver needs to keep mapped resources if unsupported dev detected */
 #define RTE_PCI_DRV_KEEP_MAPPED_RES 0x0020
-/** Device driver supports IOVA as VA */
-#define RTE_PCI_DRV_IOVA_AS_VA 0X0040
+/** Device driver needs IOVA as VA and cannot work with IOVA as PA */
+#define RTE_PCI_DRV_NEED_IOVA_AS_VA 0x0040
 
 /**
  * Map the PCI device resources in user space virtual memory address