[dpdk-dev,v3,6/6] Move common functions in eal_memory.c
Commit Message
Changes in v3
Changed subject line to explicitly include file name
Commit log includes function names moved to common directory.
Changes in v2
Use common function names rte_eal_hugepage_init and
rte_eal_hugepage_attach for BSD and Linux.
Update comments about its actuality in function declaration.
Changes in v1
Move common functions in eal_memory.c to librte_eal/common/
eal_common_memory.c file.
Following functions are moved to eal_common_memory.c file
static int rte_eal_memdevice_init(void);
int rte_eal_memory_init(void);
Fix checkpatch warnings and errors.
Signed-off-by: Ravi Kerur <rkerur@gmail.com>
---
lib/librte_eal/bsdapp/eal/eal_memory.c | 40 ++++---------------------------
lib/librte_eal/common/eal_common_memory.c | 38 +++++++++++++++++++++++++++--
lib/librte_eal/common/eal_private.h | 18 ++++++++++++++
lib/librte_eal/linuxapp/eal/eal_memory.c | 36 ++--------------------------
4 files changed, 60 insertions(+), 72 deletions(-)
Comments
2014-12-30 11:37, Ravi Kerur:
> Use common function names rte_eal_hugepage_init and
> rte_eal_hugepage_attach for BSD and Linux.
I'd like to be sure that using hugepage wording instead of contigmem
is not too weird for BSD people.
Do not forget that we have a kernel module called contigmem.
Here, an ifdef or a wrapper seems appropriate to keep right wording.
I have added wrapper function for BSD.
On Mon, Jan 5, 2015 at 1:17 PM, Thomas Monjalon <thomas.monjalon@6wind.com>
wrote:
> 2014-12-30 11:37, Ravi Kerur:
> > Use common function names rte_eal_hugepage_init and
> > rte_eal_hugepage_attach for BSD and Linux.
>
> I'd like to be sure that using hugepage wording instead of contigmem
> is not too weird for BSD people.
> Do not forget that we have a kernel module called contigmem.
> Here, an ifdef or a wrapper seems appropriate to keep right wording.
>
> --
> Thomas
>
@@ -59,8 +59,8 @@ rte_mem_virt2phy(const void *virtaddr)
return RTE_BAD_PHYS_ADDR;
}
-static int
-rte_eal_contigmem_init(void)
+int
+rte_eal_hugepage_init(void)
{
struct rte_mem_config *mcfg;
uint64_t total_mem = 0;
@@ -130,8 +130,8 @@ rte_eal_contigmem_init(void)
return 0;
}
-static int
-rte_eal_contigmem_attach(void)
+int
+rte_eal_hugepage_attach(void)
{
const struct hugepage_info *hpi;
int fd_hugepage_info, fd_hugepage = -1;
@@ -190,35 +190,3 @@ error:
return -1;
}
-
-static int
-rte_eal_memdevice_init(void)
-{
- struct rte_config *config;
-
- if (rte_eal_process_type() == RTE_PROC_SECONDARY)
- return 0;
-
- config = rte_eal_get_configuration();
- config->mem_config->nchannel = internal_config.force_nchannel;
- config->mem_config->nrank = internal_config.force_nrank;
-
- return 0;
-}
-
-/* init memory subsystem */
-int
-rte_eal_memory_init(void)
-{
- RTE_LOG(INFO, EAL, "Setting up physically contiguous memory...\n");
- const int retval = rte_eal_process_type() == RTE_PROC_PRIMARY ?
- rte_eal_contigmem_init() :
- rte_eal_contigmem_attach();
- if (retval < 0)
- return -1;
-
- if (internal_config.no_shconf == 0 && rte_eal_memdevice_init() < 0)
- return -1;
-
- return 0;
-}
@@ -46,6 +46,7 @@
#include <rte_log.h>
#include "eal_private.h"
+#include "eal_internal_cfg.h"
/*
* Return a pointer to a read-only table of struct rte_physmem_desc
@@ -70,7 +71,7 @@ rte_eal_get_physmem_size(void)
/* get pointer to global configuration */
mcfg = rte_eal_get_configuration()->mem_config;
- for (i=0; i<RTE_MAX_MEMSEG; i++) {
+ for (i = 0; i < RTE_MAX_MEMSEG; i++) {
if (mcfg->memseg[i].addr == NULL)
break;
@@ -90,7 +91,7 @@ rte_dump_physmem_layout(FILE *f)
/* get pointer to global configuration */
mcfg = rte_eal_get_configuration()->mem_config;
- for (i=0; i<RTE_MAX_MEMSEG; i++) {
+ for (i = 0; i < RTE_MAX_MEMSEG; i++) {
if (mcfg->memseg[i].addr == NULL)
break;
@@ -119,3 +120,36 @@ unsigned rte_memory_get_nrank(void)
{
return rte_eal_get_configuration()->mem_config->nrank;
}
+
+static int
+rte_eal_memdevice_init(void)
+{
+ struct rte_config *config;
+
+ if (rte_eal_process_type() == RTE_PROC_SECONDARY)
+ return 0;
+
+ config = rte_eal_get_configuration();
+ config->mem_config->nchannel = internal_config.force_nchannel;
+ config->mem_config->nrank = internal_config.force_nrank;
+
+ return 0;
+}
+
+/* init memory subsystem */
+int
+rte_eal_memory_init(void)
+{
+ RTE_LOG(INFO, EAL, "Setting up physically contiguous memory...\n");
+ const int retval = rte_eal_process_type() == RTE_PROC_PRIMARY ?
+ rte_eal_hugepage_init() :
+ rte_eal_hugepage_attach();
+
+ if (retval < 0)
+ return -1;
+
+ if (internal_config.no_shconf == 0 && rte_eal_memdevice_init() < 0)
+ return -1;
+
+ return 0;
+}
@@ -279,6 +279,24 @@ void set_tsc_freq(void);
*/
int set_tsc_freq_from_sysctl(void);
+/**
+ * This function prepares physical memory mapping
+ * i.e. hugepages on Linux and
+ * contigmem on BSD.
+ *
+ * This function is private to the EAL.
+ */
+int rte_eal_hugepage_init(void);
+
+/**
+ * This function creates memory mapping in secondary
+ * i.e. hugepages on Linux and
+ * contigmem on BSD.
+ *
+ * This function is private to the EAL.
+ */
+int rte_eal_hugepage_attach(void);
+
#ifdef RTE_EXEC_ENV_BSDAPP
/**
* This function gets no. of cpus
@@ -1031,7 +1031,7 @@ calc_num_pages_per_socket(uint64_t * memory,
* 6. unmap the first mapping
* 7. fill memsegs in configuration with contiguous zones
*/
-static int
+int
rte_eal_hugepage_init(void)
{
struct rte_mem_config *mcfg;
@@ -1369,7 +1369,7 @@ getFileSize(int fd)
* configuration and finds the hugepages which form that segment, mapping them
* in order to form a contiguous block in the virtual memory space
*/
-static int
+int
rte_eal_hugepage_attach(void)
{
const struct rte_mem_config *mcfg = rte_eal_get_configuration()->mem_config;
@@ -1530,35 +1530,3 @@ error:
return -1;
}
-static int
-rte_eal_memdevice_init(void)
-{
- struct rte_config *config;
-
- if (rte_eal_process_type() == RTE_PROC_SECONDARY)
- return 0;
-
- config = rte_eal_get_configuration();
- config->mem_config->nchannel = internal_config.force_nchannel;
- config->mem_config->nrank = internal_config.force_nrank;
-
- return 0;
-}
-
-
-/* init memory subsystem */
-int
-rte_eal_memory_init(void)
-{
- RTE_LOG(INFO, EAL, "Setting up memory...\n");
- const int retval = rte_eal_process_type() == RTE_PROC_PRIMARY ?
- rte_eal_hugepage_init() :
- rte_eal_hugepage_attach();
- if (retval < 0)
- return -1;
-
- if (internal_config.no_shconf == 0 && rte_eal_memdevice_init() < 0)
- return -1;
-
- return 0;
-}