[dpdk-dev] [PATCH v7 11/12] eal: Consolidate pci_map/unmap_device() of linuxapp and bsdapp

[Tetsuya Mukawa]

From: "Tetsuya.Mukawa" <mukawa at igel.co.jp>

The patch consolidates below functions, and implemented in common
eal code.
 - pci_map_device()
 - pci_unmap_device()

Signed-off-by: Tetsuya Mukawa <mukawa at igel.co.jp>
---
 lib/librte_eal/bsdapp/eal/eal_pci.c     |  3 ++
 lib/librte_eal/common/eal_common_pci.c  | 57 +++++++++++++++++++++++++++++++++
 lib/librte_eal/common/eal_private.h     | 19 +++++++++++
 lib/librte_eal/common/include/rte_pci.h |  1 +
 lib/librte_eal/linuxapp/eal/eal_pci.c   | 53 ------------------------------
 lib/librte_ether/rte_ethdev.c           |  1 +
 6 files changed, 81 insertions(+), 53 deletions(-)

diff --git a/lib/librte_eal/bsdapp/eal/eal_pci.c b/lib/librte_eal/bsdapp/eal/eal_pci.c
index 329c268..c057f6a 100644
--- a/lib/librte_eal/bsdapp/eal/eal_pci.c
+++ b/lib/librte_eal/bsdapp/eal/eal_pci.c
@@ -238,6 +238,9 @@ pci_scan_one(int dev_pci_fd, struct pci_conf *conf)
 	/* FreeBSD has no NUMA support (yet) */
 	dev->numa_node = 0;
 
+	/* FreeBSD has only one pass through driver */
+	dev->kdrv = RTE_KDRV_NIC_UIO;
+
 	/* parse resources */
 	switch (conf->pc_hdr & PCIM_HDRTYPE) {
 	case PCIM_HDRTYPE_NORMAL:
diff --git a/lib/librte_eal/common/eal_common_pci.c b/lib/librte_eal/common/eal_common_pci.c
index 81b8fd6..c0be292 100644
--- a/lib/librte_eal/common/eal_common_pci.c
+++ b/lib/librte_eal/common/eal_common_pci.c
@@ -137,6 +137,63 @@ pci_unmap_resource(void *requested_addr, size_t size)
 				requested_addr);
 }
 
+/* Map pci device */
+int
+pci_map_device(struct rte_pci_device *dev)
+{
+	int ret = -1;
+
+	/* try mapping the NIC resources using VFIO if it exists */
+	switch (dev->kdrv) {
+	case RTE_KDRV_VFIO:
+#ifdef VFIO_PRESENT
+		if (pci_vfio_is_enabled())
+			ret = pci_vfio_map_resource(dev);
+#endif
+		break;
+	case RTE_KDRV_IGB_UIO:
+	case RTE_KDRV_UIO_GENERIC:
+	case RTE_KDRV_NIC_UIO:
+		/* map resources for devices that use uio */
+		ret = pci_uio_map_resource(dev);
+		break;
+	default:
+		RTE_LOG(DEBUG, EAL, "  Not managed by a supported kernel driver,"
+			" skipped\n");
+		ret = 1;
+		break;
+	}
+
+	return ret;
+}
+
+#ifdef RTE_LIBRTE_EAL_HOTPLUG
+/* Unmap pci device */
+void
+pci_unmap_device(struct rte_pci_device *dev)
+{
+	if (dev == NULL)
+		return;
+
+	/* try unmapping the NIC resources using VFIO if it exists */
+	switch (dev->kdrv) {
+	case RTE_KDRV_VFIO:
+		RTE_LOG(ERR, EAL, "Hotplug doesn't support vfio yet\n");
+		break;
+	case RTE_KDRV_IGB_UIO:
+	case RTE_KDRV_UIO_GENERIC:
+	case RTE_KDRV_NIC_UIO:
+		/* unmap resources for devices that use uio */
+		pci_uio_unmap_resource(dev);
+		break;
+	default:
+		RTE_LOG(DEBUG, EAL, "  Not managed by a supported kernel driver,"
+			" skipped\n");
+		break;
+	}
+}
+#endif /* RTE_LIBRTE_EAL_HOTPLUG */
+
 /*
  * If vendor/device ID match, call the devinit() function of all
  * registered driver for the given device. Return -1 if initialization
diff --git a/lib/librte_eal/common/eal_private.h b/lib/librte_eal/common/eal_private.h
index c3a3fe4..eec396c 100644
--- a/lib/librte_eal/common/eal_private.h
+++ b/lib/librte_eal/common/eal_private.h
@@ -162,6 +162,25 @@ struct rte_pci_device;
  * @return
  *   0 on success, negative on error
  */
+int pci_map_device(struct rte_pci_device *dev);
+
+#ifdef RTE_LIBRTE_EAL_HOTPLUG
+/**
+ * Unmap this device
+ *
+ * This function is private to EAL.
+ */
+void pci_unmap_device(struct rte_pci_device *dev);
+#endif /* RTE_LIBRTE_EAL_HOTPLUG */
+
+/**
+ * Map this device
+ *
+ * This function is private to EAL.
+ *
+ * @return
+ *   0 on success, negative on error
+ */
 int pci_uio_map_resource(struct rte_pci_device *dev);
 
 #ifdef RTE_LIBRTE_EAL_HOTPLUG
diff --git a/lib/librte_eal/common/include/rte_pci.h b/lib/librte_eal/common/include/rte_pci.h
index 56dcb46..475d2dc 100644
--- a/lib/librte_eal/common/include/rte_pci.h
+++ b/lib/librte_eal/common/include/rte_pci.h
@@ -148,6 +148,7 @@ enum rte_kernel_driver {
 	RTE_KDRV_IGB_UIO,
 	RTE_KDRV_VFIO,
 	RTE_KDRV_UIO_GENERIC,
+	RTE_KDRV_NIC_UIO,
 };
 
 /**
diff --git a/lib/librte_eal/linuxapp/eal/eal_pci.c b/lib/librte_eal/linuxapp/eal/eal_pci.c
index fc99eaa..7e8df7d 100644
--- a/lib/librte_eal/linuxapp/eal/eal_pci.c
+++ b/lib/librte_eal/linuxapp/eal/eal_pci.c
@@ -522,59 +522,6 @@ pci_config_space_set(struct rte_pci_device *dev)
 }
 #endif
 
-static int
-pci_map_device(struct rte_pci_device *dev)
-{
-	int ret = -1;
-
-	/* try mapping the NIC resources using VFIO if it exists */
-	switch (dev->kdrv) {
-	case RTE_KDRV_VFIO:
-#ifdef VFIO_PRESENT
-		if (pci_vfio_is_enabled())
-			ret = pci_vfio_map_resource(dev);
-#endif
-		break;
-	case RTE_KDRV_IGB_UIO:
-	case RTE_KDRV_UIO_GENERIC:
-		/* map resources for devices that use uio */
-		ret = pci_uio_map_resource(dev);
-		break;
-	default:
-		RTE_LOG(DEBUG, EAL, "  Not managed by a supported kernel driver,"
-			" skipped\n");
-		ret = 1;
-		break;
-	}
-
-	return ret;
-}
-
-#ifdef RTE_LIBRTE_EAL_HOTPLUG
-static void
-pci_unmap_device(struct rte_pci_device *dev)
-{
-	if (dev == NULL)
-		return;
-
-	/* try unmapping the NIC resources using VFIO if it exists */
-	switch (dev->kdrv) {
-	case RTE_KDRV_VFIO:
-		RTE_LOG(ERR, EAL, "Hotplug doesn't support vfio yet\n");
-		break;
-	case RTE_KDRV_IGB_UIO:
-	case RTE_KDRV_UIO_GENERIC:
-		/* unmap resources for devices that use uio */
-		pci_uio_unmap_resource(dev);
-		break;
-	default:
-		RTE_LOG(DEBUG, EAL, "  Not managed by a supported kernel driver,"
-			" skipped\n");
-		break;
-	}
-}
-#endif /* RTE_LIBRTE_EAL_HOTPLUG */
-
 /*
  * If vendor/device ID match, call the devinit() function of the
  * driver.
diff --git a/lib/librte_ether/rte_ethdev.c b/lib/librte_ether/rte_ethdev.c
index 02cd07f..1822258 100644
--- a/lib/librte_ether/rte_ethdev.c
+++ b/lib/librte_ether/rte_ethdev.c
@@ -515,6 +515,7 @@ rte_eth_dev_is_detachable(uint8_t port_id)
 		switch (rte_eth_devices[port_id].pci_dev->kdrv) {
 		case RTE_KDRV_IGB_UIO:
 		case RTE_KDRV_UIO_GENERIC:
+		case RTE_KDRV_NIC_UIO:
 			break;
 		case RTE_KDRV_VFIO:
 		default:
-- 
2.1.4