From: Tetsuya Mukawa <mukawa@igel.co.jp>
To: dev@dpdk.org
Subject: [dpdk-dev] [PATCH v9 06/12] eal: Add pci_uio_alloc/free_resource()
Date: Wed, 8 Jul 2015 19:34:47 +0900 [thread overview]
Message-ID: <1436351693-2349-7-git-send-email-mukawa@igel.co.jp> (raw)
In-Reply-To: <1436351693-2349-1-git-send-email-mukawa@igel.co.jp>
From: "Tetsuya.Mukawa" <mukawa@igel.co.jp>
This patch adds new functions called pci_uio_alloc_resource() and
pci_uio_free_resource().
The functions hides how to prepare or free uio resource in linuxapp
and bsdapp. With the function, pci_uio_map_resource() will be more
abstracted.
Signed-off-by: Tetsuya Mukawa <mukawa@igel.co.jp>
---
lib/librte_eal/bsdapp/eal/eal_pci.c | 83 ++++++++++++++++++---------
lib/librte_eal/linuxapp/eal/eal_pci_uio.c | 93 ++++++++++++++++++++-----------
2 files changed, 117 insertions(+), 59 deletions(-)
diff --git a/lib/librte_eal/bsdapp/eal/eal_pci.c b/lib/librte_eal/bsdapp/eal/eal_pci.c
index fba67df..b4a2631 100644
--- a/lib/librte_eal/bsdapp/eal/eal_pci.c
+++ b/lib/librte_eal/bsdapp/eal/eal_pci.c
@@ -188,28 +188,27 @@ pci_uio_map_secondary(struct rte_pci_device *dev)
return 1;
}
-/* map the PCI resource of a PCI device in virtual memory */
+static void
+pci_uio_free_resource(struct rte_pci_device *dev,
+ struct mapped_pci_resource *uio_res)
+{
+ rte_free(uio_res);
+
+ if (dev->intr_handle.fd) {
+ close(dev->intr_handle.fd);
+ dev->intr_handle.fd = -1;
+ dev->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN;
+ }
+}
+
static int
-pci_uio_map_resource(struct rte_pci_device *dev)
+pci_uio_alloc_resource(struct rte_pci_device *dev,
+ struct mapped_pci_resource **uio_res)
{
- int i, map_idx = 0;
char devname[PATH_MAX]; /* contains the /dev/uioX */
- void *mapaddr;
- uint64_t phaddr;
- uint64_t offset;
- uint64_t pagesz;
- struct rte_pci_addr *loc = &dev->addr;
- 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);
- struct pci_map *maps;
+ struct rte_pci_addr *loc;
- 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);
+ loc = &dev->addr;
snprintf(devname, sizeof(devname), "/dev/uio@pci:%u:%u:%u",
dev->addr.bus, dev->addr.devid, dev->addr.function);
@@ -230,18 +229,53 @@ pci_uio_map_resource(struct rte_pci_device *dev)
dev->intr_handle.type = RTE_INTR_HANDLE_UIO;
/* allocate the mapping details for secondary processes*/
- if ((uio_res = rte_zmalloc("UIO_RES", sizeof (*uio_res), 0)) == NULL) {
+ *uio_res = rte_zmalloc("UIO_RES", sizeof(**uio_res), 0);
+ if (*uio_res == NULL) {
RTE_LOG(ERR, EAL,
"%s(): cannot store uio mmap details\n", __func__);
goto error;
}
- snprintf(uio_res->path, sizeof(uio_res->path), "%s", devname);
- memcpy(&uio_res->pci_addr, &dev->addr, sizeof(uio_res->pci_addr));
+ snprintf((*uio_res)->path, sizeof((*uio_res)->path), "%s", devname);
+ memcpy(&(*uio_res)->pci_addr, &dev->addr, sizeof((*uio_res)->pci_addr));
+ return 0;
+
+error:
+ pci_uio_free_resource(dev, *uio_res);
+ 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;
+ char *devname;
+ void *mapaddr;
+ uint64_t phaddr;
+ uint64_t offset;
+ uint64_t pagesz;
+ 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);
+ struct pci_map *maps;
+
+ 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 */
pagesz = sysconf(_SC_PAGESIZE);
+ devname = uio_res->path;
maps = uio_res->maps;
for (i = 0; i != PCI_MAX_RESOURCE; i++) {
@@ -297,12 +331,7 @@ pci_uio_map_resource(struct rte_pci_device *dev)
error:
for (i = 0; i < map_idx; i++)
rte_free(maps[i].path);
- rte_free(uio_res);
- if (dev->intr_handle.fd >= 0) {
- close(dev->intr_handle.fd);
- dev->intr_handle.fd = -1;
- dev->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN;
- }
+ pci_uio_free_resource(dev, uio_res);
return -1;
}
diff --git a/lib/librte_eal/linuxapp/eal/eal_pci_uio.c b/lib/librte_eal/linuxapp/eal/eal_pci_uio.c
index f4e5dd1..986f431 100644
--- a/lib/librte_eal/linuxapp/eal/eal_pci_uio.c
+++ b/lib/librte_eal/linuxapp/eal/eal_pci_uio.c
@@ -253,30 +253,34 @@ pci_get_uio_dev(struct rte_pci_device *dev, char *dstbuf,
return uio_num;
}
-/* map the PCI resource of a PCI device in virtual memory */
-int
-pci_uio_map_resource(struct rte_pci_device *dev)
+static void
+pci_uio_free_resource(struct rte_pci_device *dev,
+ struct mapped_pci_resource *uio_res)
+{
+ rte_free(uio_res);
+
+ if (dev->intr_handle.uio_cfg_fd >= 0) {
+ close(dev->intr_handle.uio_cfg_fd);
+ dev->intr_handle.uio_cfg_fd = -1;
+ }
+ if (dev->intr_handle.fd) {
+ close(dev->intr_handle.fd);
+ dev->intr_handle.fd = -1;
+ dev->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN;
+ }
+}
+
+static int
+pci_uio_alloc_resource(struct rte_pci_device *dev,
+ struct mapped_pci_resource **uio_res)
{
- int i, map_idx = 0;
char dirname[PATH_MAX];
char cfgname[PATH_MAX];
char devname[PATH_MAX]; /* contains the /dev/uioX */
- void *mapaddr;
int uio_num;
- uint64_t phaddr;
- struct rte_pci_addr *loc = &dev->addr;
- 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);
- struct pci_map *maps;
+ struct rte_pci_addr *loc;
- 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);
+ loc = &dev->addr;
/* find uio resource */
uio_num = pci_get_uio_dev(dev, dirname, sizeof(dirname));
@@ -317,15 +321,49 @@ pci_uio_map_resource(struct rte_pci_device *dev)
}
/* allocate the mapping details for secondary processes*/
- uio_res = rte_zmalloc("UIO_RES", sizeof(*uio_res), 0);
- if (uio_res == NULL) {
+ *uio_res = rte_zmalloc("UIO_RES", sizeof(**uio_res), 0);
+ if (*uio_res == NULL) {
RTE_LOG(ERR, EAL,
"%s(): cannot store uio mmap details\n", __func__);
goto error;
}
- snprintf(uio_res->path, sizeof(uio_res->path), "%s", devname);
- memcpy(&uio_res->pci_addr, &dev->addr, sizeof(uio_res->pci_addr));
+ snprintf((*uio_res)->path, sizeof((*uio_res)->path), "%s", devname);
+ memcpy(&(*uio_res)->pci_addr, &dev->addr, sizeof((*uio_res)->pci_addr));
+
+ return 0;
+
+error:
+ pci_uio_free_resource(dev, *uio_res);
+ 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;
+ char devname[PATH_MAX]; /* contains the /dev/uioX */
+ void *mapaddr;
+ uint64_t phaddr;
+ struct rte_pci_addr *loc = &dev->addr;
+ 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);
+ struct pci_map *maps;
+
+ 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 */
maps = uio_res->maps;
@@ -399,16 +437,7 @@ error:
(size_t)uio_res->maps[i].size);
rte_free(maps[i].path);
}
- rte_free(uio_res);
- if (dev->intr_handle.uio_cfg_fd >= 0) {
- close(dev->intr_handle.uio_cfg_fd);
- dev->intr_handle.uio_cfg_fd = -1;
- }
- if (dev->intr_handle.fd >= 0) {
- close(dev->intr_handle.fd);
- dev->intr_handle.fd = -1;
- dev->intr_handle.type = RTE_INTR_HANDLE_UNKNOWN;
- }
+ pci_uio_free_resource(dev, uio_res);
return -1;
}
--
2.1.4
next prev parent reply other threads:[~2015-07-08 10:35 UTC|newest]
Thread overview: 120+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-05-19 5:54 [dpdk-dev] [PATCH v4 0/5] Clean up pci uio implementations Tetsuya Mukawa
2015-05-19 5:54 ` [dpdk-dev] [PATCH v4 1/5] eal: Fix coding style of eal_pci.c and eal_pci_uio.c Tetsuya Mukawa
2015-05-19 14:51 ` Stephen Hemminger
2015-06-25 3:19 ` [dpdk-dev] [PATCH v5 0/5] Clean up pci uio implementations Tetsuya Mukawa
2015-06-25 3:19 ` [dpdk-dev] [PATCH v5 1/5] eal: Fix coding style of eal_pci.c and eal_pci_uio.c Tetsuya Mukawa
2015-06-25 9:16 ` David Marchand
2015-06-25 3:19 ` [dpdk-dev] [PATCH v5 2/5] eal: Close file descriptor of uio configuration Tetsuya Mukawa
2015-06-25 3:19 ` [dpdk-dev] [PATCH v5 3/5] eal: Fix memory leaks and needless increment of pci_map_addr Tetsuya Mukawa
2015-06-25 9:16 ` David Marchand
2015-06-26 1:30 ` Tetsuya Mukawa
2015-06-25 9:18 ` David Marchand
2015-06-26 1:35 ` Tetsuya Mukawa
2015-06-26 8:18 ` [dpdk-dev] [PATCH v6 0/5] Clean up pci uio implementations Tetsuya Mukawa
2015-06-26 8:18 ` [dpdk-dev] [PATCH v6 1/5] eal: Fix coding style of eal_pci.c and eal_pci_uio.c Tetsuya Mukawa
2015-06-26 14:30 ` Iremonger, Bernard
2015-06-26 8:18 ` [dpdk-dev] [PATCH v6 2/5] eal: Close file descriptor of uio configuration Tetsuya Mukawa
2015-06-26 14:32 ` Iremonger, Bernard
2015-06-26 8:18 ` [dpdk-dev] [PATCH v6 3/5] eal: Fix memory leaks and needless increment of pci_map_addr Tetsuya Mukawa
2015-06-26 14:34 ` Iremonger, Bernard
2015-06-30 8:24 ` [dpdk-dev] [PATCH v7 00/12] Clean up pci uio implementations Tetsuya Mukawa
2015-06-30 8:24 ` [dpdk-dev] [PATCH v7 01/12] eal: Fix coding style of eal_pci.c and eal_pci_uio.c Tetsuya Mukawa
2015-06-30 8:24 ` [dpdk-dev] [PATCH v7 02/12] eal: Close file descriptor of uio configuration Tetsuya Mukawa
2015-06-30 8:24 ` [dpdk-dev] [PATCH v7 03/12] eal: Fix memory leaks and needless increment of pci_map_addr Tetsuya Mukawa
2015-06-30 12:33 ` Iremonger, Bernard
2015-07-02 9:57 ` Bruce Richardson
2015-07-03 8:51 ` Tetsuya Mukawa
2015-06-30 8:24 ` [dpdk-dev] [PATCH v7 04/12] eal/bsdapp: Change names of pci related data structure Tetsuya Mukawa
2015-06-30 12:36 ` Iremonger, Bernard
2015-06-30 8:24 ` [dpdk-dev] [PATCH v7 05/12] eal: Fix uio mapping differences between linuxapp and bsdapp Tetsuya Mukawa
2015-06-30 12:51 ` Iremonger, Bernard
2015-07-02 10:20 ` Bruce Richardson
2015-07-03 8:51 ` Tetsuya Mukawa
2015-06-30 8:24 ` [dpdk-dev] [PATCH v7 06/12] eal: Add pci_uio_alloc_resource() Tetsuya Mukawa
2015-07-02 10:46 ` Bruce Richardson
2015-07-03 8:52 ` Tetsuya Mukawa
2015-07-03 9:45 ` Bruce Richardson
2015-06-30 8:24 ` [dpdk-dev] [PATCH v7 07/12] eal: Add pci_uio_map_resource_by_index() Tetsuya Mukawa
2015-06-30 8:24 ` [dpdk-dev] [PATCH v7 08/12] eal: Consolidate pci_map and mapped_pci_resource of linuxapp and bsdapp Tetsuya Mukawa
2015-06-30 14:25 ` Iremonger, Bernard
2015-06-30 8:24 ` [dpdk-dev] [PATCH v7 09/12] eal: Consolidate pci_map/unmap_resource() " Tetsuya Mukawa
2015-06-30 14:28 ` Iremonger, Bernard
2015-07-02 11:11 ` Bruce Richardson
2015-07-03 8:52 ` Tetsuya Mukawa
2015-06-30 8:24 ` [dpdk-dev] [PATCH v7 10/12] eal: Consolidate pci uio functions " Tetsuya Mukawa
2015-06-30 8:24 ` [dpdk-dev] [PATCH v7 11/12] eal: Consolidate pci_map/unmap_device() " Tetsuya Mukawa
2015-06-30 14:45 ` Iremonger, Bernard
2015-07-06 6:24 ` [dpdk-dev] [PATCH v8 00/12] Clean up pci uio implementations Tetsuya Mukawa
2015-07-06 6:24 ` [dpdk-dev] [PATCH v8 01/12] eal: Fix coding style of eal_pci.c and eal_pci_uio.c Tetsuya Mukawa
2015-07-07 8:04 ` David Marchand
2015-07-08 2:42 ` Tetsuya Mukawa
2015-07-06 6:24 ` [dpdk-dev] [PATCH v8 02/12] eal: Close file descriptor of uio configuration Tetsuya Mukawa
2015-07-07 8:04 ` David Marchand
2015-07-06 6:24 ` [dpdk-dev] [PATCH v8 03/12] eal: Fix memory leaks and needless increment of pci_map_addr Tetsuya Mukawa
2015-07-07 8:04 ` David Marchand
2015-07-08 2:42 ` Tetsuya Mukawa
2015-07-06 6:24 ` [dpdk-dev] [PATCH v8 04/12] eal/bsdapp: Change names of pci related data structure Tetsuya Mukawa
2015-07-07 8:04 ` David Marchand
2015-07-06 6:24 ` [dpdk-dev] [PATCH v8 05/12] eal: Fix uio mapping differences between linuxapp and bsdapp Tetsuya Mukawa
2015-07-07 8:04 ` David Marchand
2015-07-08 2:42 ` Tetsuya Mukawa
2015-07-06 6:24 ` [dpdk-dev] [PATCH v8 06/12] eal: Add pci_uio_alloc_resource() Tetsuya Mukawa
2015-07-07 8:04 ` David Marchand
2015-07-08 2:42 ` Tetsuya Mukawa
2015-07-06 6:24 ` [dpdk-dev] [PATCH v8 07/12] eal: Add pci_uio_map_resource_by_index() Tetsuya Mukawa
2015-07-07 8:05 ` David Marchand
2015-07-08 2:42 ` Tetsuya Mukawa
2015-07-06 6:24 ` [dpdk-dev] [PATCH v8 08/12] eal: Consolidate pci_map and mapped_pci_resource of linuxapp and bsdapp Tetsuya Mukawa
2015-07-07 8:05 ` David Marchand
2015-07-06 6:24 ` [dpdk-dev] [PATCH v8 09/12] eal: Consolidate pci_map/unmap_resource() " Tetsuya Mukawa
2015-07-07 8:05 ` David Marchand
2015-07-06 6:24 ` [dpdk-dev] [PATCH v8 10/12] eal: Consolidate pci uio functions " Tetsuya Mukawa
2015-07-07 8:07 ` David Marchand
2015-07-06 6:24 ` [dpdk-dev] [PATCH v8 11/12] eal: Consolidate pci_map/unmap_device() " Tetsuya Mukawa
2015-07-07 8:06 ` David Marchand
2015-07-08 2:42 ` Tetsuya Mukawa
2015-07-08 8:27 ` Thomas Monjalon
2015-07-08 8:50 ` Tetsuya Mukawa
2015-07-06 6:24 ` [dpdk-dev] [PATCH v8 12/12] eal: Consolidate rte_eal_pci_probe/close_one_driver() " Tetsuya Mukawa
2015-07-07 8:07 ` David Marchand
2015-07-08 10:34 ` [dpdk-dev] [PATCH v9 00/12] Clean up pci uio implementations Tetsuya Mukawa
2015-07-08 10:34 ` [dpdk-dev] [PATCH v9 01/12] eal: Fix coding style of eal_pci.c and eal_pci_uio.c Tetsuya Mukawa
2015-07-08 16:09 ` Stephen Hemminger
2015-07-08 20:30 ` Thomas Monjalon
2015-07-09 1:09 ` Tetsuya Mukawa
2015-07-08 10:34 ` [dpdk-dev] [PATCH v9 02/12] eal: Close file descriptor of uio configuration Tetsuya Mukawa
2015-07-08 10:34 ` [dpdk-dev] [PATCH v9 03/12] eal: Fix memory leaks and needless increment of pci_map_addr Tetsuya Mukawa
2015-07-08 10:34 ` [dpdk-dev] [PATCH v9 04/12] eal/bsdapp: Change names of pci related data structure Tetsuya Mukawa
2015-07-08 10:34 ` [dpdk-dev] [PATCH v9 05/12] eal: Fix uio mapping differences between linuxapp and bsdapp Tetsuya Mukawa
2015-07-08 10:34 ` Tetsuya Mukawa [this message]
2015-07-08 10:34 ` [dpdk-dev] [PATCH v9 07/12] eal: Add pci_uio_map_resource_by_index() Tetsuya Mukawa
2015-07-08 10:34 ` [dpdk-dev] [PATCH v9 08/12] eal: Consolidate pci_map and mapped_pci_resource of linuxapp and bsdapp Tetsuya Mukawa
2015-07-08 10:34 ` [dpdk-dev] [PATCH v9 09/12] eal: Consolidate pci_map/unmap_resource() " Tetsuya Mukawa
2015-07-08 10:34 ` [dpdk-dev] [PATCH v9 10/12] eal: Consolidate pci uio functions " Tetsuya Mukawa
2015-07-08 10:34 ` [dpdk-dev] [PATCH v9 11/12] eal: Consolidate pci_map/unmap_device() " Tetsuya Mukawa
2015-07-08 10:34 ` [dpdk-dev] [PATCH v9 12/12] eal: Consolidate rte_eal_pci_probe/close_one_driver() " Tetsuya Mukawa
2015-07-08 12:36 ` [dpdk-dev] [PATCH v9 00/12] Clean up pci uio implementations David Marchand
2015-07-08 21:52 ` Thomas Monjalon
2015-06-30 8:24 ` [dpdk-dev] [PATCH v7 12/12] eal: Consolidate rte_eal_pci_probe/close_one_driver() of linuxapp and bsdapp Tetsuya Mukawa
2015-06-30 14:56 ` Iremonger, Bernard
2015-07-01 6:39 ` Tetsuya Mukawa
2015-07-02 11:32 ` [dpdk-dev] [PATCH v7 00/12] Clean up pci uio implementations Bruce Richardson
2015-07-03 8:52 ` Tetsuya Mukawa
2015-06-26 8:18 ` [dpdk-dev] [PATCH v6 4/5] eal/bsdapp: Change names of pci related data structure Tetsuya Mukawa
2015-06-26 14:36 ` Iremonger, Bernard
2015-06-26 8:18 ` [dpdk-dev] [PATCH v6 5/5] eal: Fix uio mapping differences between linuxapp and bsdapp Tetsuya Mukawa
2015-06-26 14:42 ` Iremonger, Bernard
2015-06-25 3:19 ` [dpdk-dev] [PATCH v5 4/5] eal/bsdapp: Change names of pci related data structure Tetsuya Mukawa
2015-06-25 9:19 ` David Marchand
2015-06-25 3:19 ` [dpdk-dev] [PATCH v5 5/5] eal: Fix uio mapping differences between linuxapp and bsdapp Tetsuya Mukawa
2015-05-19 5:54 ` [dpdk-dev] [PATCH v4 2/5] eal: Close file descriptor of uio configuration Tetsuya Mukawa
2015-05-19 16:02 ` Stephen Hemminger
2015-05-19 5:54 ` [dpdk-dev] [PATCH v4 3/5] eal: Fix memory leaks and needless increment of pci_map_addr Tetsuya Mukawa
2015-06-15 14:29 ` Iremonger, Bernard
2015-06-15 15:05 ` Iremonger, Bernard
2015-05-19 5:54 ` [dpdk-dev] [PATCH v4 4/5] eal/bsdapp: Change names of pci related data structure Tetsuya Mukawa
2015-05-19 5:54 ` [dpdk-dev] [PATCH v4 5/5] eal: Fix uio mapping differences between linuxapp and bsdapp Tetsuya Mukawa
2015-06-15 14:31 ` Iremonger, Bernard
2015-06-15 15:08 ` Iremonger, Bernard
2015-06-15 15:17 ` Thomas Monjalon
2015-05-19 5:57 ` [dpdk-dev] [PATCH v4 0/5] Clean up pci uio implementations Tetsuya Mukawa
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