[dpdk-dev] [PATCH v9 10/12] eal: Consolidate pci uio functions of linuxapp and bsdapp

[Tetsuya Mukawa <mukawa@igel.co.jp>]

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

The patch consolidates below functions, and implement these
in eal_common_pci_uio.c.
 - pci_uio_map_secondary()
 - pci_uio_map_resource()
 - pci_uio_unmap()
 - pci_uio_find_resource()
 - pci_uio_unmap_resource()

Signed-off-by: Tetsuya Mukawa <mukawa@igel.co.jp>
Acked-by: David Marchand <david.marchand@6wind.com>
---
 lib/librte_eal/bsdapp/eal/Makefile                 |   2 +
 lib/librte_eal/bsdapp/eal/eal_pci.c                | 104 +---------
 .../bsdapp/eal/include/exec-env/rte_interrupts.h   |   2 +
 lib/librte_eal/common/eal_common_pci_uio.c         | 225 +++++++++++++++++++++
 lib/librte_eal/common/eal_private.h                |  69 +++++++
 lib/librte_eal/linuxapp/eal/Makefile               |   2 +
 lib/librte_eal/linuxapp/eal/eal_pci_init.h         |  14 +-
 lib/librte_eal/linuxapp/eal/eal_pci_uio.c          | 185 +----------------
 8 files changed, 313 insertions(+), 290 deletions(-)
 create mode 100644 lib/librte_eal/common/eal_common_pci_uio.c

diff --git a/lib/librte_eal/bsdapp/eal/Makefile b/lib/librte_eal/bsdapp/eal/Makefile
index c73ffb6..0d72330 100644
--- a/lib/librte_eal/bsdapp/eal/Makefile
+++ b/lib/librte_eal/bsdapp/eal/Makefile
@@ -1,6 +1,7 @@
 #   BSD LICENSE
 #
 #   Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
+#   Copyright(c) 2015 IGEL Co., Ltd.
 #   All rights reserved.
 #
 #   Redistribution and use in source and binary forms, with or without
@@ -68,6 +69,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_EAL_BSDAPP) += eal_common_memzone.c
 SRCS-$(CONFIG_RTE_LIBRTE_EAL_BSDAPP) += eal_common_log.c
 SRCS-$(CONFIG_RTE_LIBRTE_EAL_BSDAPP) += eal_common_launch.c
 SRCS-$(CONFIG_RTE_LIBRTE_EAL_BSDAPP) += eal_common_pci.c
+SRCS-$(CONFIG_RTE_LIBRTE_EAL_BSDAPP) += eal_common_pci_uio.c
 SRCS-$(CONFIG_RTE_LIBRTE_EAL_BSDAPP) += eal_common_memory.c
 SRCS-$(CONFIG_RTE_LIBRTE_EAL_BSDAPP) += eal_common_tailqs.c
 SRCS-$(CONFIG_RTE_LIBRTE_EAL_BSDAPP) += eal_common_errno.c
diff --git a/lib/librte_eal/bsdapp/eal/eal_pci.c b/lib/librte_eal/bsdapp/eal/eal_pci.c
index 16bda09..42cf87e 100644
--- a/lib/librte_eal/bsdapp/eal/eal_pci.c
+++ b/lib/librte_eal/bsdapp/eal/eal_pci.c
@@ -83,10 +83,6 @@
  * network card, only providing access to PCI BAR to applications, and
  * enabling bus master.
  */
-static struct rte_tailq_elem rte_uio_tailq = {
-	.name = "UIO_RESOURCE_LIST",
-};
-EAL_REGISTER_TAILQ(rte_uio_tailq)
 
 /* unbind kernel driver for this device */
 static int
@@ -97,52 +93,7 @@ pci_unbind_kernel_driver(struct rte_pci_device *dev __rte_unused)
 	return -ENOTSUP;
 }
 
-static int
-pci_uio_map_secondary(struct rte_pci_device *dev)
-{
-	int i, fd;
-	struct mapped_pci_resource *uio_res;
-	struct mapped_pci_res_list *uio_res_list =
-			RTE_TAILQ_CAST(rte_uio_tailq.head, mapped_pci_res_list);
-
-	TAILQ_FOREACH(uio_res, uio_res_list, next) {
-
-		/* skip this element if it doesn't match our PCI address */
-		if (rte_eal_compare_pci_addr(&uio_res->pci_addr, &dev->addr))
-			continue;
-
-		for (i = 0; i != uio_res->nb_maps; i++) {
-			/*
-			 * open devname, to mmap it
-			 */
-			fd = open(uio_res->maps[i].path, O_RDWR);
-			if (fd < 0) {
-				RTE_LOG(ERR, EAL, "Cannot open %s: %s\n",
-					uio_res->maps[i].path, strerror(errno));
-				return -1;
-			}
-
-			void *mapaddr = pci_map_resource(uio_res->maps[i].addr,
-					fd, (off_t)uio_res->maps[i].offset,
-					(size_t)uio_res->maps[i].size, 0);
-			/* fd is not needed in slave process, close it */
-			close(fd);
-			if (mapaddr != uio_res->maps[i].addr) {
-				RTE_LOG(ERR, EAL,
-					"Cannot mmap device resource file %s to address: %p\n",
-					uio_res->maps[i].path,
-					uio_res->maps[i].addr);
-				return -1;
-			}
-		}
-		return 0;
-	}
-
-	RTE_LOG(ERR, EAL, "Cannot find resource for device\n");
-	return 1;
-}
-
-static void
+void
 pci_uio_free_resource(struct rte_pci_device *dev,
 		struct mapped_pci_resource *uio_res)
 {
@@ -155,7 +106,7 @@ pci_uio_free_resource(struct rte_pci_device *dev,
 	}
 }
 
-static int
+int
 pci_uio_alloc_resource(struct rte_pci_device *dev,
 		struct mapped_pci_resource **uio_res)
 {
@@ -200,7 +151,7 @@ error:
 	return -1;
 }
 
-static int
+int
 pci_uio_map_resource_by_index(struct rte_pci_device *dev, int res_idx,
 		struct mapped_pci_resource *uio_res, int map_idx)
 {
@@ -255,55 +206,6 @@ error:
 	return -1;
 }
 
-/* map the PCI resource of a PCI device in virtual memory */
-static int
-pci_uio_map_resource(struct rte_pci_device *dev)
-{
-	int i, map_idx = 0, ret;
-	uint64_t phaddr;
-	struct mapped_pci_resource *uio_res = NULL;
-	struct mapped_pci_res_list *uio_res_list =
-		RTE_TAILQ_CAST(rte_uio_tailq.head, mapped_pci_res_list);
-
-	dev->intr_handle.fd = -1;
-	dev->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN;
-
-	/* secondary processes - use already recorded details */
-	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
-		return pci_uio_map_secondary(dev);
-
-	/* allocate uio resource */
-	ret = pci_uio_alloc_resource(dev, &uio_res);
-	if (ret)
-		return ret;
-
-	/* Map all BARs */
-	for (i = 0; i != PCI_MAX_RESOURCE; i++) {
-		/* skip empty BAR */
-		if ((phaddr = dev->mem_resource[i].phys_addr) == 0)
-			continue;
-
-		ret = pci_uio_map_resource_by_index(dev, i,
-				uio_res, map_idx);
-		if (ret)
-			goto error;
-
-		map_idx++;
-	}
-
-	uio_res->nb_maps = map_idx;
-
-	TAILQ_INSERT_TAIL(uio_res_list, uio_res, next);
-
-	return 0;
-error:
-	for (i = 0; i < map_idx; i++)
-		rte_free(uio_res->maps[i].path);
-	pci_uio_free_resource(dev, uio_res);
-	return -1;
-}
-
-/* Scan one pci sysfs entry, and fill the devices list from it. */
 static int
 pci_scan_one(int dev_pci_fd, struct pci_conf *conf)
 {
diff --git a/lib/librte_eal/bsdapp/eal/include/exec-env/rte_interrupts.h b/lib/librte_eal/bsdapp/eal/include/exec-env/rte_interrupts.h
index 87a9cf6..410dd21 100644
--- a/lib/librte_eal/bsdapp/eal/include/exec-env/rte_interrupts.h
+++ b/lib/librte_eal/bsdapp/eal/include/exec-env/rte_interrupts.h
@@ -2,6 +2,7 @@
  *   BSD LICENSE
  *
  *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   Copyright(c) 2015 IGEL Co., Ltd.
  *   All rights reserved.
  *
  *   Redistribution and use in source and binary forms, with or without
@@ -48,6 +49,7 @@ enum rte_intr_handle_type {
 /** Handle for interrupts. */
 struct rte_intr_handle {
 	int fd;                          /**< file descriptor */
+	int uio_cfg_fd;                  /**< UIO config file descriptor */
 	enum rte_intr_handle_type type;  /**< handle type */
 };
 
diff --git a/lib/librte_eal/common/eal_common_pci_uio.c b/lib/librte_eal/common/eal_common_pci_uio.c
new file mode 100644
index 0000000..9fa9844
--- /dev/null
+++ b/lib/librte_eal/common/eal_common_pci_uio.c
@@ -0,0 +1,225 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
+ *   Copyright(c) 2015 IGEL Co., Ltd.
+ *   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.
+ */
+
+#include <fcntl.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+
+#include <rte_eal.h>
+#include <rte_tailq.h>
+#include <rte_log.h>
+#include <rte_malloc.h>
+
+#include "eal_private.h"
+
+static struct rte_tailq_elem rte_uio_tailq = {
+	.name = "UIO_RESOURCE_LIST",
+};
+EAL_REGISTER_TAILQ(rte_uio_tailq)
+
+static int
+pci_uio_map_secondary(struct rte_pci_device *dev)
+{
+	int fd, i;
+	struct mapped_pci_resource *uio_res;
+	struct mapped_pci_res_list *uio_res_list =
+			RTE_TAILQ_CAST(rte_uio_tailq.head, mapped_pci_res_list);
+
+	TAILQ_FOREACH(uio_res, uio_res_list, next) {
+
+		/* skip this element if it doesn't match our PCI address */
+		if (rte_eal_compare_pci_addr(&uio_res->pci_addr, &dev->addr))
+			continue;
+
+		for (i = 0; i != uio_res->nb_maps; i++) {
+			/*
+			 * open devname, to mmap it
+			 */
+			fd = open(uio_res->maps[i].path, O_RDWR);
+			if (fd < 0) {
+				RTE_LOG(ERR, EAL, "Cannot open %s: %s\n",
+					uio_res->maps[i].path, strerror(errno));
+				return -1;
+			}
+
+			void *mapaddr = pci_map_resource(uio_res->maps[i].addr,
+					fd, (off_t)uio_res->maps[i].offset,
+					(size_t)uio_res->maps[i].size, 0);
+			/* fd is not needed in slave process, close it */
+			close(fd);
+			if (mapaddr != uio_res->maps[i].addr) {
+				RTE_LOG(ERR, EAL,
+					"Cannot mmap device resource file %s to address: %p\n",
+					uio_res->maps[i].path,
+					uio_res->maps[i].addr);
+				return -1;
+			}
+		}
+		return 0;
+	}
+
+	RTE_LOG(ERR, EAL, "Cannot find resource for device\n");
+	return 1;
+}
+
+/* map the PCI resource of a PCI device in virtual memory */
+int
+pci_uio_map_resource(struct rte_pci_device *dev)
+{
+	int i, map_idx = 0, ret;
+	uint64_t phaddr;
+	struct mapped_pci_resource *uio_res = NULL;
+	struct mapped_pci_res_list *uio_res_list =
+		RTE_TAILQ_CAST(rte_uio_tailq.head, mapped_pci_res_list);
+
+	dev->intr_handle.fd = -1;
+	dev->intr_handle.uio_cfg_fd = -1;
+	dev->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN;
+
+	/* secondary processes - use already recorded details */
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+		return pci_uio_map_secondary(dev);
+
+	/* allocate uio resource */
+	ret = pci_uio_alloc_resource(dev, &uio_res);
+	if (ret)
+		return ret;
+
+	/* Map all BARs */
+	for (i = 0; i != PCI_MAX_RESOURCE; i++) {
+		/* skip empty BAR */
+		phaddr = dev->mem_resource[i].phys_addr;
+		if (phaddr == 0)
+			continue;
+
+		ret = pci_uio_map_resource_by_index(dev, i,
+				uio_res, map_idx);
+		if (ret)
+			goto error;
+
+		map_idx++;
+	}
+
+	uio_res->nb_maps = map_idx;
+
+	TAILQ_INSERT_TAIL(uio_res_list, uio_res, next);
+
+	return 0;
+error:
+	for (i = 0; i < map_idx; i++) {
+		pci_unmap_resource(uio_res->maps[i].addr,
+				(size_t)uio_res->maps[i].size);
+		rte_free(uio_res->maps[i].path);
+	}
+	pci_uio_free_resource(dev, uio_res);
+	return -1;
+}
+
+#ifdef RTE_LIBRTE_EAL_HOTPLUG
+static void
+pci_uio_unmap(struct mapped_pci_resource *uio_res)
+{
+	int i;
+
+	if (uio_res == NULL)
+		return;
+
+	for (i = 0; i != uio_res->nb_maps; i++) {
+		pci_unmap_resource(uio_res->maps[i].addr,
+				(size_t)uio_res->maps[i].size);
+		rte_free(uio_res->maps[i].path);
+	}
+}
+
+static struct mapped_pci_resource *
+pci_uio_find_resource(struct rte_pci_device *dev)
+{
+	struct mapped_pci_resource *uio_res;
+	struct mapped_pci_res_list *uio_res_list =
+			RTE_TAILQ_CAST(rte_uio_tailq.head, mapped_pci_res_list);
+
+	if (dev == NULL)
+		return NULL;
+
+	TAILQ_FOREACH(uio_res, uio_res_list, next) {
+
+		/* skip this element if it doesn't match our PCI address */
+		if (!rte_eal_compare_pci_addr(&uio_res->pci_addr, &dev->addr))
+			return uio_res;
+	}
+	return NULL;
+}
+
+/* unmap the PCI resource of a PCI device in virtual memory */
+void
+pci_uio_unmap_resource(struct rte_pci_device *dev)
+{
+	struct mapped_pci_resource *uio_res;
+	struct mapped_pci_res_list *uio_res_list =
+			RTE_TAILQ_CAST(rte_uio_tailq.head, mapped_pci_res_list);
+
+	if (dev == NULL)
+		return;
+
+	/* find an entry for the device */
+	uio_res = pci_uio_find_resource(dev);
+	if (uio_res == NULL)
+		return;
+
+	/* secondary processes - just free maps */
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+		return pci_uio_unmap(uio_res);
+
+	TAILQ_REMOVE(uio_res_list, uio_res, next);
+
+	/* unmap all resources */
+	pci_uio_unmap(uio_res);
+
+	/* free uio resource */
+	rte_free(uio_res);
+
+	/* close fd if in primary process */
+	close(dev->intr_handle.fd);
+	if (dev->intr_handle.uio_cfg_fd >= 0) {
+		close(dev->intr_handle.uio_cfg_fd);
+		dev->intr_handle.uio_cfg_fd = -1;
+	}
+
+	dev->intr_handle.fd = -1;
+	dev->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN;
+}
+#endif /* RTE_LIBRTE_EAL_HOTPLUG */
diff --git a/lib/librte_eal/common/eal_private.h b/lib/librte_eal/common/eal_private.h
index 4acf5a0..c0b62b7 100644
--- a/lib/librte_eal/common/eal_private.h
+++ b/lib/librte_eal/common/eal_private.h
@@ -2,6 +2,7 @@
  *   BSD LICENSE
  *
  *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   Copyright(c) 2015 IGEL Co., Ltd.
  *   All rights reserved.
  *
  *   Redistribution and use in source and binary forms, with or without
@@ -35,6 +36,7 @@
 #define _EAL_PRIVATE_H_
 
 #include <stdio.h>
+#include <rte_pci.h>
 
 /**
  * Initialize the memzone subsystem (private to eal).
@@ -154,6 +156,25 @@ struct rte_pci_driver;
 struct rte_pci_device;
 
 /**
+ * Map the PCI resource of a PCI device in virtual memory
+ *
+ * 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
+/**
+ * Unmap the PCI resource of a PCI device
+ *
+ * This function is private to EAL.
+ */
+void pci_uio_unmap_resource(struct rte_pci_device *dev);
+#endif /* RTE_LIBRTE_EAL_HOTPLUG */
+
+/**
  * Mmap memory for single PCI device
  *
  * This function is private to EAL.
@@ -180,6 +201,54 @@ int rte_eal_pci_close_one_driver(struct rte_pci_driver *dr,
 		struct rte_pci_device *dev);
 
 /**
+ * Allocate uio resource for PCI device
+ *
+ * This function is private to EAL.
+ *
+ * @param dev
+ *   PCI device to allocate uio resource
+ * @param uio_res
+ *   Pointer to uio resource.
+ *   If the function returns 0, the pointer will be filled.
+ * @return
+ *   0 on success, negative on error
+ */
+int pci_uio_alloc_resource(struct rte_pci_device *dev,
+		struct mapped_pci_resource **uio_res);
+
+/**
+ * Free uio resource for PCI device
+ *
+ * This function is private to EAL.
+ *
+ * @param dev
+ *   PCI device to free uio resource
+ * @param uio_res
+ *   Pointer to uio resource.
+ */
+void pci_uio_free_resource(struct rte_pci_device *dev,
+		struct mapped_pci_resource *uio_res);
+
+/**
+ * Map device memory to uio resource
+ *
+ * This function is private to EAL.
+ *
+ * @param dev
+ *   PCI device that has memory information.
+ * @param res_idx
+ *   Memory resource index of the PCI device.
+ * @param uio_res
+ *  uio resource that will keep mapping information.
+ * @param map_idx
+ *   Mapping information index of the uio resource.
+ * @return
+ *   0 on success, negative on error
+ */
+int pci_uio_map_resource_by_index(struct rte_pci_device *dev, int res_idx,
+		struct mapped_pci_resource *uio_res, int map_idx);
+
+/**
  * Init tail queues for non-EAL library structures. This is to allow
  * the rings, mempools, etc. lists to be shared among multiple processes
  *
diff --git a/lib/librte_eal/linuxapp/eal/Makefile b/lib/librte_eal/linuxapp/eal/Makefile
index e99d7a3..92900d6 100644
--- a/lib/librte_eal/linuxapp/eal/Makefile
+++ b/lib/librte_eal/linuxapp/eal/Makefile
@@ -1,6 +1,7 @@
 #   BSD LICENSE
 #
 #   Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
+#   Copyright(c) 2015 IGEL Co., Ltd.
 #   All rights reserved.
 #
 #   Redistribution and use in source and binary forms, with or without
@@ -80,6 +81,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_common_memzone.c
 SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_common_log.c
 SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_common_launch.c
 SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_common_pci.c
+SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_common_pci_uio.c
 SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_common_memory.c
 SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_common_tailqs.c
 SRCS-$(CONFIG_RTE_LIBRTE_EAL_LINUXAPP) += eal_common_errno.c
diff --git a/lib/librte_eal/linuxapp/eal/eal_pci_init.h b/lib/librte_eal/linuxapp/eal/eal_pci_init.h
index d426b27..32de148 100644
--- a/lib/librte_eal/linuxapp/eal/eal_pci_init.h
+++ b/lib/librte_eal/linuxapp/eal/eal_pci_init.h
@@ -2,6 +2,7 @@
  *   BSD LICENSE
  *
  *   Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ *   Copyright(c) 2015 IGEL Co., Ltd.
  *   All rights reserved.
  *
  *   Redistribution and use in source and binary forms, with or without
@@ -42,13 +43,12 @@
 extern void *pci_map_addr;
 void *pci_find_max_end_va(void);
 
-/* map IGB_UIO resource prototype */
-int pci_uio_map_resource(struct rte_pci_device *dev);
-
-#ifdef RTE_LIBRTE_EAL_HOTPLUG
-/* unmap IGB_UIO resource prototype */
-void pci_uio_unmap_resource(struct rte_pci_device *dev);
-#endif /* RTE_LIBRTE_EAL_HOTPLUG */
+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);
 
 #ifdef VFIO_PRESENT
 
diff --git a/lib/librte_eal/linuxapp/eal/eal_pci_uio.c b/lib/librte_eal/linuxapp/eal/eal_pci_uio.c
index 3f5520f..c1d9cdc 100644
--- a/lib/librte_eal/linuxapp/eal/eal_pci_uio.c
+++ b/lib/librte_eal/linuxapp/eal/eal_pci_uio.c
@@ -52,11 +52,6 @@
 
 void *pci_map_addr = NULL;
 
-static struct rte_tailq_elem rte_uio_tailq = {
-	.name = "UIO_RESOURCE_LIST",
-};
-EAL_REGISTER_TAILQ(rte_uio_tailq)
-
 #define OFF_MAX              ((uint64_t)(off_t)-1)
 
 static int
@@ -89,51 +84,6 @@ pci_uio_set_bus_master(int dev_fd)
 }
 
 static int
-pci_uio_map_secondary(struct rte_pci_device *dev)
-{
-	int fd, i;
-	struct mapped_pci_resource *uio_res;
-	struct mapped_pci_res_list *uio_res_list =
-			RTE_TAILQ_CAST(rte_uio_tailq.head, mapped_pci_res_list);
-
-	TAILQ_FOREACH(uio_res, uio_res_list, next) {
-
-		/* skip this element if it doesn't match our PCI address */
-		if (rte_eal_compare_pci_addr(&uio_res->pci_addr, &dev->addr))
-			continue;
-
-		for (i = 0; i != uio_res->nb_maps; i++) {
-			/*
-			 * open devname, to mmap it
-			 */
-			fd = open(uio_res->maps[i].path, O_RDWR);
-			if (fd < 0) {
-				RTE_LOG(ERR, EAL, "Cannot open %s: %s\n",
-					uio_res->maps[i].path, strerror(errno));
-				return -1;
-			}
-
-			void *mapaddr = pci_map_resource(uio_res->maps[i].addr,
-					fd, (off_t)uio_res->maps[i].offset,
-					(size_t)uio_res->maps[i].size, 0);
-			/* fd is not needed in slave process, close it */
-			close(fd);
-			if (mapaddr != uio_res->maps[i].addr) {
-				RTE_LOG(ERR, EAL,
-					"Cannot mmap device resource file %s to address: %p\n",
-					uio_res->maps[i].path,
-					uio_res->maps[i].addr);
-				return -1;
-			}
-		}
-		return 0;
-	}
-
-	RTE_LOG(ERR, EAL, "Cannot find resource for device\n");
-	return 1;
-}
-
-static int
 pci_mknod_uio_dev(const char *sysfs_uio_path, unsigned uio_num)
 {
 	FILE *f;
@@ -253,7 +203,7 @@ pci_get_uio_dev(struct rte_pci_device *dev, char *dstbuf,
 	return uio_num;
 }
 
-static void
+void
 pci_uio_free_resource(struct rte_pci_device *dev,
 		struct mapped_pci_resource *uio_res)
 {
@@ -270,7 +220,7 @@ pci_uio_free_resource(struct rte_pci_device *dev,
 	}
 }
 
-static int
+int
 pci_uio_alloc_resource(struct rte_pci_device *dev,
 		struct mapped_pci_resource **uio_res)
 {
@@ -338,7 +288,7 @@ error:
 	return -1;
 }
 
-static int
+int
 pci_uio_map_resource_by_index(struct rte_pci_device *dev, int res_idx,
 		struct mapped_pci_resource *uio_res, int map_idx)
 {
@@ -401,132 +351,3 @@ error:
 	rte_free(maps[map_idx].path);
 	return -1;
 }
-
-/* map the PCI resource of a PCI device in virtual memory */
-int
-pci_uio_map_resource(struct rte_pci_device *dev)
-{
-	int i, map_idx = 0, ret;
-	uint64_t phaddr;
-	struct mapped_pci_resource *uio_res = NULL;
-	struct mapped_pci_res_list *uio_res_list =
-		RTE_TAILQ_CAST(rte_uio_tailq.head, mapped_pci_res_list);
-
-	dev->intr_handle.fd = -1;
-	dev->intr_handle.uio_cfg_fd = -1;
-	dev->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN;
-
-	/* secondary processes - use already recorded details */
-	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
-		return pci_uio_map_secondary(dev);
-
-	/* allocate uio resource */
-	ret = pci_uio_alloc_resource(dev, &uio_res);
-	if (ret)
-		return ret;
-
-	/* Map all BARs */
-	for (i = 0; i != PCI_MAX_RESOURCE; i++) {
-		/* skip empty BAR */
-		phaddr = dev->mem_resource[i].phys_addr;
-		if (phaddr == 0)
-			continue;
-
-		ret = pci_uio_map_resource_by_index(dev, i,
-				uio_res, map_idx);
-		if (ret)
-			goto error;
-
-		map_idx++;
-	}
-
-	uio_res->nb_maps = map_idx;
-
-	TAILQ_INSERT_TAIL(uio_res_list, uio_res, next);
-
-	return 0;
-
-error:
-	for (i = 0; i < map_idx; i++) {
-		pci_unmap_resource(uio_res->maps[i].addr,
-				(size_t)uio_res->maps[i].size);
-		rte_free(uio_res->maps[i].path);
-	}
-	pci_uio_free_resource(dev, uio_res);
-	return -1;
-}
-
-#ifdef RTE_LIBRTE_EAL_HOTPLUG
-static void
-pci_uio_unmap(struct mapped_pci_resource *uio_res)
-{
-	int i;
-
-	if (uio_res == NULL)
-		return;
-
-	for (i = 0; i != uio_res->nb_maps; i++) {
-		pci_unmap_resource(uio_res->maps[i].addr,
-				(size_t)uio_res->maps[i].size);
-		rte_free(uio_res->maps[i].path);
-	}
-}
-
-static struct mapped_pci_resource *
-pci_uio_find_resource(struct rte_pci_device *dev)
-{
-	struct mapped_pci_resource *uio_res;
-	struct mapped_pci_res_list *uio_res_list =
-			RTE_TAILQ_CAST(rte_uio_tailq.head, mapped_pci_res_list);
-
-	if (dev == NULL)
-		return NULL;
-
-	TAILQ_FOREACH(uio_res, uio_res_list, next) {
-
-		/* skip this element if it doesn't match our PCI address */
-		if (!rte_eal_compare_pci_addr(&uio_res->pci_addr, &dev->addr))
-			return uio_res;
-	}
-	return NULL;
-}
-
-/* unmap the PCI resource of a PCI device in virtual memory */
-void
-pci_uio_unmap_resource(struct rte_pci_device *dev)
-{
-	struct mapped_pci_resource *uio_res;
-	struct mapped_pci_res_list *uio_res_list =
-			RTE_TAILQ_CAST(rte_uio_tailq.head, mapped_pci_res_list);
-
-	if (dev == NULL)
-		return;
-
-	/* find an entry for the device */
-	uio_res = pci_uio_find_resource(dev);
-	if (uio_res == NULL)
-		return;
-
-	/* secondary processes - just free maps */
-	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
-		return pci_uio_unmap(uio_res);
-
-	TAILQ_REMOVE(uio_res_list, uio_res, next);
-
-	/* unmap all resources */
-	pci_uio_unmap(uio_res);
-
-	/* free uio resource */
-	rte_free(uio_res);
-
-	/* close fd if in primary process */
-	close(dev->intr_handle.fd);
-	dev->intr_handle.fd = -1;
-
-	/* close cfg_fd if in primary process */
-	close(dev->intr_handle.uio_cfg_fd);
-	dev->intr_handle.uio_cfg_fd = -1;
-
-	dev->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN;
-}
-#endif /* RTE_LIBRTE_EAL_HOTPLUG */
-- 
2.1.4