[dpdk-dev,v5,5/8] Move common functions in eal_memory.c
Commit Message
Changes in v5
Rebase to latest code.
Changes in v4
Make rte_eal_hugepage_init and rte_eal_hugepage_attach as
wrapper functions for BSD.
Changes in v3
Changed subject to be more explicit on file name inclusion.
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 | 47 +++++++++++--------------------
lib/librte_eal/common/eal_common_memory.c | 38 +++++++++++++++++++++++--
lib/librte_eal/common/eal_private.h | 22 +++++++++++++++
lib/librte_eal/linuxapp/eal/eal_memory.c | 36 ++---------------------
4 files changed, 76 insertions(+), 67 deletions(-)
Comments
2015-04-09 12:40, Ravi Kerur:
> Changes in v5
> Rebase to latest code.
>
> Changes in v4
> Make rte_eal_hugepage_init and rte_eal_hugepage_attach as
> wrapper functions for BSD.
>
> Changes in v3
> Changed subject to be more explicit on file name inclusion.
>
> 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>
[...]
> +/**
> + * This function prepares physical memory mapping
> + * i.e. hugepages on Linux and
> + * contigmem on BSD.
OK
> + * It is a wrapper function for BSD which will
> + * internally call contigmem_init.
Please avoid such comment which is difficult to maintain and not really useful.
> + * It is a wrapper function for BSD which will
> + * internally call contigmem_attach.
Same comment.
Except the above comments, it seems goods.
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Thanks
On Thu, Apr 16, 2015 at 1:52 AM, Thomas Monjalon <thomas.monjalon@6wind.com>
wrote:
> 2015-04-09 12:40, Ravi Kerur:
> > Changes in v5
> > Rebase to latest code.
> >
> > Changes in v4
> > Make rte_eal_hugepage_init and rte_eal_hugepage_attach as
> > wrapper functions for BSD.
> >
> > Changes in v3
> > Changed subject to be more explicit on file name inclusion.
> >
> > 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>
> [...]
> > +/**
> > + * This function prepares physical memory mapping
> > + * i.e. hugepages on Linux and
> > + * contigmem on BSD.
>
> OK
>
> > + * It is a wrapper function for BSD which will
> > + * internally call contigmem_init.
>
> Please avoid such comment which is difficult to maintain and not really
> useful.
>
> > + * It is a wrapper function for BSD which will
> > + * internally call contigmem_attach.
>
> Same comment.
>
> Except the above comments, it seems goods.
> Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
>
> Thanks
>
Will fix comments in next version.
@@ -59,7 +59,7 @@ rte_mem_virt2phy(const void *virtaddr)
return RTE_BAD_PHYS_ADDR;
}
-static int
+static inline int
rte_eal_contigmem_init(void)
{
struct rte_mem_config *mcfg;
@@ -131,7 +131,16 @@ rte_eal_contigmem_init(void)
return 0;
}
-static int
+/*
+ * Wrapper function to initialize contigmem.
+ */
+int
+rte_eal_hugepage_init(void)
+{
+ return rte_eal_contigmem_init();
+}
+
+static inline int
rte_eal_contigmem_attach(void)
{
const struct hugepage_info *hpi;
@@ -192,35 +201,11 @@ 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 */
+/*
+ * Wrapper function to attach contigmem.
+ */
int
-rte_eal_memory_init(void)
+rte_eal_hugepage_attach(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;
+ return rte_eal_contigmem_attach();
}
@@ -45,6 +45,7 @@
#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
@@ -69,7 +70,7 @@ 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;
@@ -89,7 +90,7 @@ 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;
@@ -118,3 +119,36 @@ 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;
+}
@@ -348,4 +348,26 @@ int set_tsc_freq_from_clock(void);
*/
void rte_set_tsc_hz(uint64_t tsc_hz);
+/**
+ * This function prepares physical memory mapping
+ * i.e. hugepages on Linux and
+ * contigmem on BSD.
+ * It is a wrapper function for BSD which will
+ * internally call contigmem_init.
+ *
+ * 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.
+ * It is a wrapper function for BSD which will
+ * internally call contigmem_attach.
+ *
+ * This function is private to the EAL.
+ */
+int rte_eal_hugepage_attach(void);
+
#endif /* _EAL_PRIVATE_H_ */
@@ -1030,7 +1030,7 @@ 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;
@@ -1368,7 +1368,7 @@ 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;
@@ -1529,35 +1529,3 @@ 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;
-}