[dpdk-dev] [PATCH v1 05/28] eal: remove pci_ prefix from pci_(un)map_resource
Jan Viktorin
viktorin at rehivetech.com
Fri May 6 15:47:47 CEST 2016
The functions pci_map_resource, pci_unmap_resource are generic so the pci_
prefix can be omitted. The functions are moved to the eal_common_dev.c so
they can be reused by other infrastructure.
Signed-off-by: Jan Viktorin <viktorin at rehivetech.com>
---
lib/librte_eal/bsdapp/eal/eal_pci.c | 2 +-
lib/librte_eal/common/eal_common_dev.c | 39 ++++++++++++++++++++++++++++++
lib/librte_eal/common/eal_common_pci.c | 39 ------------------------------
lib/librte_eal/common/eal_common_pci_uio.c | 6 ++---
lib/librte_eal/common/eal_private.h | 32 ++++++++++++++++++++++++
lib/librte_eal/common/include/rte_pci.h | 32 ------------------------
lib/librte_eal/linuxapp/eal/eal_pci_uio.c | 3 ++-
lib/librte_eal/linuxapp/eal/eal_pci_vfio.c | 4 +--
8 files changed, 79 insertions(+), 78 deletions(-)
diff --git a/lib/librte_eal/bsdapp/eal/eal_pci.c b/lib/librte_eal/bsdapp/eal/eal_pci.c
index 85e49f6..b5a20fa 100644
--- a/lib/librte_eal/bsdapp/eal/eal_pci.c
+++ b/lib/librte_eal/bsdapp/eal/eal_pci.c
@@ -228,7 +228,7 @@ pci_uio_map_resource_by_index(struct rte_pci_device *dev, int res_idx,
/* if matching map is found, then use it */
offset = res_idx * pagesz;
- mapaddr = pci_map_resource(NULL, fd, (off_t)offset,
+ mapaddr = map_resource(NULL, fd, (off_t)offset,
(size_t)dev->mem_resource[res_idx].len, 0);
close(fd);
if (mapaddr == MAP_FAILED)
diff --git a/lib/librte_eal/common/eal_common_dev.c b/lib/librte_eal/common/eal_common_dev.c
index 59ed3a0..d2763b0 100644
--- a/lib/librte_eal/common/eal_common_dev.c
+++ b/lib/librte_eal/common/eal_common_dev.c
@@ -36,6 +36,7 @@
#include <string.h>
#include <inttypes.h>
#include <sys/queue.h>
+#include <sys/mman.h>
#include <rte_dev.h>
#include <rte_devargs.h>
@@ -189,3 +190,41 @@ err:
RTE_LOG(ERR, EAL, "Driver, cannot detach the device\n");
return -1;
}
+
+/* map a particular resource from a file */
+void *
+map_resource(void *requested_addr, int fd, off_t offset, size_t size,
+ int additional_flags)
+{
+ void *mapaddr;
+
+ /* Map the PCI memory resource of device */
+ mapaddr = mmap(requested_addr, size, PROT_READ | PROT_WRITE,
+ MAP_SHARED | additional_flags, fd, offset);
+ if (mapaddr == MAP_FAILED) {
+ RTE_LOG(ERR, EAL, "%s(): cannot mmap(%d, %p, 0x%lx, 0x%lx): %s (%p)\n",
+ __func__, fd, requested_addr,
+ (unsigned long)size, (unsigned long)offset,
+ strerror(errno), mapaddr);
+ } else
+ RTE_LOG(DEBUG, EAL, " PCI memory mapped at %p\n", mapaddr);
+
+ return mapaddr;
+}
+
+/* unmap a particular resource */
+void
+unmap_resource(void *requested_addr, size_t size)
+{
+ if (requested_addr == NULL)
+ return;
+
+ /* Unmap the PCI memory resource of device */
+ if (munmap(requested_addr, size)) {
+ RTE_LOG(ERR, EAL, "%s(): cannot munmap(%p, 0x%lx): %s\n",
+ __func__, requested_addr, (unsigned long)size,
+ strerror(errno));
+ } else
+ RTE_LOG(DEBUG, EAL, " PCI memory unmapped at %p\n",
+ requested_addr);
+}
diff --git a/lib/librte_eal/common/eal_common_pci.c b/lib/librte_eal/common/eal_common_pci.c
index f24dc4d..f85106d 100644
--- a/lib/librte_eal/common/eal_common_pci.c
+++ b/lib/librte_eal/common/eal_common_pci.c
@@ -67,7 +67,6 @@
#include <stdlib.h>
#include <stdio.h>
#include <sys/queue.h>
-#include <sys/mman.h>
#include <rte_interrupts.h>
#include <rte_log.h>
@@ -101,44 +100,6 @@ static struct rte_devargs *pci_devargs_lookup(struct rte_pci_device *dev)
return NULL;
}
-/* map a particular resource from a file */
-void *
-pci_map_resource(void *requested_addr, int fd, off_t offset, size_t size,
- int additional_flags)
-{
- void *mapaddr;
-
- /* Map the PCI memory resource of device */
- mapaddr = mmap(requested_addr, size, PROT_READ | PROT_WRITE,
- MAP_SHARED | additional_flags, fd, offset);
- if (mapaddr == MAP_FAILED) {
- RTE_LOG(ERR, EAL, "%s(): cannot mmap(%d, %p, 0x%lx, 0x%lx): %s (%p)\n",
- __func__, fd, requested_addr,
- (unsigned long)size, (unsigned long)offset,
- strerror(errno), mapaddr);
- } else
- RTE_LOG(DEBUG, EAL, " PCI memory mapped at %p\n", mapaddr);
-
- return mapaddr;
-}
-
-/* unmap a particular resource */
-void
-pci_unmap_resource(void *requested_addr, size_t size)
-{
- if (requested_addr == NULL)
- return;
-
- /* Unmap the PCI memory resource of device */
- if (munmap(requested_addr, size)) {
- RTE_LOG(ERR, EAL, "%s(): cannot munmap(%p, 0x%lx): %s\n",
- __func__, requested_addr, (unsigned long)size,
- strerror(errno));
- } else
- RTE_LOG(DEBUG, EAL, " PCI memory unmapped at %p\n",
- requested_addr);
-}
-
/*
* If vendor/device ID match, call the devinit() function of the
* driver.
diff --git a/lib/librte_eal/common/eal_common_pci_uio.c b/lib/librte_eal/common/eal_common_pci_uio.c
index f062e81..40b161d 100644
--- a/lib/librte_eal/common/eal_common_pci_uio.c
+++ b/lib/librte_eal/common/eal_common_pci_uio.c
@@ -75,7 +75,7 @@ pci_uio_map_secondary(struct rte_pci_device *dev)
return -1;
}
- void *mapaddr = pci_map_resource(uio_res->maps[i].addr,
+ void *mapaddr = 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 */
@@ -140,7 +140,7 @@ pci_uio_map_resource(struct rte_pci_device *dev)
return 0;
error:
for (i = 0; i < map_idx; i++) {
- pci_unmap_resource(uio_res->maps[i].addr,
+ unmap_resource(uio_res->maps[i].addr,
(size_t)uio_res->maps[i].size);
rte_free(uio_res->maps[i].path);
}
@@ -157,7 +157,7 @@ pci_uio_unmap(struct mapped_pci_resource *uio_res)
return;
for (i = 0; i != uio_res->nb_maps; i++) {
- pci_unmap_resource(uio_res->maps[i].addr,
+ unmap_resource(uio_res->maps[i].addr,
(size_t)uio_res->maps[i].size);
rte_free(uio_res->maps[i].path);
}
diff --git a/lib/librte_eal/common/eal_private.h b/lib/librte_eal/common/eal_private.h
index 9a81fdd..b8ce5b9 100644
--- a/lib/librte_eal/common/eal_private.h
+++ b/lib/librte_eal/common/eal_private.h
@@ -120,6 +120,38 @@ int rte_eal_log_early_init(void);
int rte_eal_log_init(const char *id, int facility);
/**
+ * @internal
+ * Map a particular resource from a file.
+ *
+ * @param requested_addr
+ * The starting address for the new mapping range.
+ * @param fd
+ * The file descriptor.
+ * @param offset
+ * The offset for the mapping range.
+ * @param size
+ * The size for the mapping range.
+ * @param additional_flags
+ * The additional flags for the mapping range.
+ * @return
+ * - On success, the function returns a pointer to the mapped area.
+ * - On error, the value MAP_FAILED is returned.
+ */
+void *map_resource(void *requested_addr, int fd, off_t offset,
+ size_t size, int additional_flags);
+
+/**
+ * @internal
+ * Unmap a particular resource.
+ *
+ * @param requested_addr
+ * The address for the unmapping range.
+ * @param size
+ * The size for the unmapping range.
+ */
+void unmap_resource(void *requested_addr, size_t size);
+
+/**
* Init the default log stream
*
* This function is private to EAL.
diff --git a/lib/librte_eal/common/include/rte_pci.h b/lib/librte_eal/common/include/rte_pci.h
index dab150e..d1d4202 100644
--- a/lib/librte_eal/common/include/rte_pci.h
+++ b/lib/librte_eal/common/include/rte_pci.h
@@ -408,38 +408,6 @@ int rte_eal_pci_map_device(struct rte_pci_device *dev);
void rte_eal_pci_unmap_device(struct rte_pci_device *dev);
/**
- * @internal
- * Map a particular resource from a file.
- *
- * @param requested_addr
- * The starting address for the new mapping range.
- * @param fd
- * The file descriptor.
- * @param offset
- * The offset for the mapping range.
- * @param size
- * The size for the mapping range.
- * @param additional_flags
- * The additional flags for the mapping range.
- * @return
- * - On success, the function returns a pointer to the mapped area.
- * - On error, the value MAP_FAILED is returned.
- */
-void *pci_map_resource(void *requested_addr, int fd, off_t offset,
- size_t size, int additional_flags);
-
-/**
- * @internal
- * Unmap a particular resource.
- *
- * @param requested_addr
- * The address for the unmapping range.
- * @param size
- * The size for the unmapping range.
- */
-void pci_unmap_resource(void *requested_addr, size_t size);
-
-/**
* Probe the single PCI device.
*
* Scan the content of the PCI bus, and find the pci device specified by pci
diff --git a/lib/librte_eal/linuxapp/eal/eal_pci_uio.c b/lib/librte_eal/linuxapp/eal/eal_pci_uio.c
index 068694d..d543f89 100644
--- a/lib/librte_eal/linuxapp/eal/eal_pci_uio.c
+++ b/lib/librte_eal/linuxapp/eal/eal_pci_uio.c
@@ -51,6 +51,7 @@
#include "eal_filesystem.h"
#include "eal_pci_init.h"
+#include "eal_private.h"
void *pci_map_addr = NULL;
@@ -345,7 +346,7 @@ pci_uio_map_resource_by_index(struct rte_pci_device *dev, int res_idx,
if (pci_map_addr == NULL)
pci_map_addr = pci_find_max_end_va();
- mapaddr = pci_map_resource(pci_map_addr, fd, 0,
+ mapaddr = map_resource(pci_map_addr, fd, 0,
(size_t)dev->mem_resource[res_idx].len, 0);
close(fd);
if (mapaddr == MAP_FAILED)
diff --git a/lib/librte_eal/linuxapp/eal/eal_pci_vfio.c b/lib/librte_eal/linuxapp/eal/eal_pci_vfio.c
index 10266f8..a50639d 100644
--- a/lib/librte_eal/linuxapp/eal/eal_pci_vfio.c
+++ b/lib/librte_eal/linuxapp/eal/eal_pci_vfio.c
@@ -930,7 +930,7 @@ pci_vfio_map_resource(struct rte_pci_device *dev)
void *map_addr = NULL;
if (memreg[0].size) {
/* actual map of first part */
- map_addr = pci_map_resource(bar_addr, vfio_dev_fd,
+ map_addr = map_resource(bar_addr, vfio_dev_fd,
memreg[0].offset,
memreg[0].size,
MAP_FIXED);
@@ -940,7 +940,7 @@ pci_vfio_map_resource(struct rte_pci_device *dev)
if (map_addr != MAP_FAILED
&& memreg[1].offset && memreg[1].size) {
void *second_addr = RTE_PTR_ADD(bar_addr, memreg[1].offset);
- map_addr = pci_map_resource(second_addr,
+ map_addr = map_resource(second_addr,
vfio_dev_fd, memreg[1].offset,
memreg[1].size,
MAP_FIXED);
--
2.8.0
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