X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;ds=sidebyside;f=drivers%2Fbus%2Ffslmc%2Ffslmc_vfio.c;h=5d4ac67ce0dda69fe9272912b5031426fb9b9741;hb=da51d4d956516c4968261dbb4ce49c1434f18b71;hp=7398637fa3bd634d19c8008699533a13eb975eaf;hpb=5374e50f10dc7c68cb797e5f15b84578398d6856;p=dpdk.git

diff --git a/drivers/bus/fslmc/fslmc_vfio.c b/drivers/bus/fslmc/fslmc_vfio.c
index 7398637fa3..5d4ac67ce0 100644
--- a/drivers/bus/fslmc/fslmc_vfio.c
+++ b/drivers/bus/fslmc/fslmc_vfio.c
@@ -76,8 +76,10 @@
 static struct fslmc_vfio_group vfio_groups[VFIO_MAX_GRP];
 static struct fslmc_vfio_container vfio_containers[VFIO_MAX_CONTAINERS];
 static int container_device_fd;
+static uint32_t *msi_intr_vaddr;
 void *(*rte_mcp_ptr_list);
 static uint32_t mcp_id;
+static int is_dma_done;
 
 static int vfio_connect_container(struct fslmc_vfio_group *vfio_group)
 {
@@ -147,6 +149,35 @@ static int vfio_connect_container(struct fslmc_vfio_group *vfio_group)
 	return 0;
 }
 
+static int vfio_map_irq_region(struct fslmc_vfio_group *group)
+{
+	int ret;
+	unsigned long *vaddr = NULL;
+	struct vfio_iommu_type1_dma_map map = {
+		.argsz = sizeof(map),
+		.flags = VFIO_DMA_MAP_FLAG_READ | VFIO_DMA_MAP_FLAG_WRITE,
+		.vaddr = 0x6030000,
+		.iova = 0x6030000,
+		.size = 0x1000,
+	};
+
+	vaddr = (unsigned long *)mmap(NULL, 0x1000, PROT_WRITE |
+		PROT_READ, MAP_SHARED, container_device_fd, 0x6030000);
+	if (vaddr == MAP_FAILED) {
+		FSLMC_VFIO_LOG(ERR, "Unable to map region (errno = %d)", errno);
+		return -errno;
+	}
+
+	msi_intr_vaddr = (uint32_t *)((char *)(vaddr) + 64);
+	map.vaddr = (unsigned long)vaddr;
+	ret = ioctl(group->container->fd, VFIO_IOMMU_MAP_DMA, &map);
+	if (ret == 0)
+		return 0;
+
+	FSLMC_VFIO_LOG(ERR, "VFIO_IOMMU_MAP_DMA fails (errno = %d)", errno);
+	return -errno;
+}
+
 int vfio_dmamap_mem_region(uint64_t vaddr,
 			   uint64_t iova,
 			   uint64_t size)
@@ -170,6 +201,71 @@ int vfio_dmamap_mem_region(uint64_t vaddr,
 	return 0;
 }
 
+int rte_fslmc_vfio_dmamap(void)
+{
+	int ret;
+	struct fslmc_vfio_group *group;
+	struct vfio_iommu_type1_dma_map dma_map = {
+		.argsz = sizeof(struct vfio_iommu_type1_dma_map),
+		.flags = VFIO_DMA_MAP_FLAG_READ | VFIO_DMA_MAP_FLAG_WRITE,
+	};
+
+	int i;
+	const struct rte_memseg *memseg;
+
+	if (is_dma_done)
+		return 0;
+	is_dma_done = 1;
+
+	for (i = 0; i < RTE_MAX_MEMSEG; i++) {
+		memseg = rte_eal_get_physmem_layout();
+		if (memseg == NULL) {
+			FSLMC_VFIO_LOG(ERR, "Cannot get physical layout.");
+			return -ENODEV;
+		}
+
+		if (memseg[i].addr == NULL && memseg[i].len == 0)
+			break;
+
+		dma_map.size = memseg[i].len;
+		dma_map.vaddr = memseg[i].addr_64;
+#ifdef RTE_LIBRTE_DPAA2_USE_PHYS_IOVA
+		dma_map.iova = memseg[i].phys_addr;
+#else
+		dma_map.iova = dma_map.vaddr;
+#endif
+
+		/* SET DMA MAP for IOMMU */
+		group = &vfio_groups[0];
+
+		if (!group->container) {
+			FSLMC_VFIO_LOG(ERR, "Container is not connected ");
+			return -1;
+		}
+
+		FSLMC_VFIO_LOG(DEBUG, "-->Initial SHM Virtual ADDR %llX",
+			     dma_map.vaddr);
+		FSLMC_VFIO_LOG(DEBUG, "-----> DMA size 0x%llX\n", dma_map.size);
+		ret = ioctl(group->container->fd, VFIO_IOMMU_MAP_DMA,
+			    &dma_map);
+		if (ret) {
+			FSLMC_VFIO_LOG(ERR, "VFIO_IOMMU_MAP_DMA API"
+				       "(errno = %d)", errno);
+			return ret;
+		}
+		FSLMC_VFIO_LOG(DEBUG, "-----> dma_map.vaddr = 0x%llX",
+			     dma_map.vaddr);
+	}
+
+	/* TODO - This is a W.A. as VFIO currently does not add the mapping of
+	 * the interrupt region to SMMU. This should be removed once the
+	 * support is added in the Kernel.
+	 */
+	vfio_map_irq_region(group);
+
+	return 0;
+}
+
 static int64_t vfio_map_mcp_obj(struct fslmc_vfio_group *group, char *mcp_obj)
 {
 	int64_t v_addr = (int64_t)MAP_FAILED;
@@ -270,7 +366,7 @@ int fslmc_vfio_process_group(void)
 	char path[PATH_MAX];
 	int64_t v_addr;
 	int ndev_count;
-	int dpio_count = 0;
+	int dpio_count = 0, dpbp_count = 0;
 	struct fslmc_vfio_group *group = &vfio_groups[0];
 	static int process_once;
 
@@ -421,6 +517,11 @@ int fslmc_vfio_process_group(void)
 			if (!ret)
 				dpio_count++;
 		}
+		if (!strcmp(object_type, "dpbp")) {
+			ret = dpaa2_create_dpbp_device(object_id);
+			if (!ret)
+				dpbp_count++;
+		}
 	}
 	closedir(d);
 
@@ -428,6 +529,8 @@ int fslmc_vfio_process_group(void)
 	if (ret)
 		FSLMC_VFIO_LOG(DEBUG, "Error in affining qbman swp %d", ret);
 
+	FSLMC_VFIO_LOG(DEBUG, "DPAA2: Added dpbp_count = %d dpio_count=%d\n",
+		      dpbp_count, dpio_count);
 	return 0;
 
 FAILURE: