[dpdk-dev] [PATCH v2 6/6] Move EAL common functions

[Ravi Kerur <rkerur@gmail.com>]

Changes in v2
1. 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.

Move common functions in eal_memory.c to librte_eal/common
directory.
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(-)

diff --git a/lib/librte_eal/bsdapp/eal/eal_memory.c b/lib/librte_eal/bsdapp/eal/eal_memory.c
index 65ee87d..0b62d6d 100644
--- a/lib/librte_eal/bsdapp/eal/eal_memory.c
+++ b/lib/librte_eal/bsdapp/eal/eal_memory.c
@@ -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;
-}
diff --git a/lib/librte_eal/common/eal_common_memory.c b/lib/librte_eal/common/eal_common_memory.c
index 77830f8..cb27930 100644
--- a/lib/librte_eal/common/eal_common_memory.c
+++ b/lib/librte_eal/common/eal_common_memory.c
@@ -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;
+}
diff --git a/lib/librte_eal/common/eal_private.h b/lib/librte_eal/common/eal_private.h
index 98a08f0..82a724d 100644
--- a/lib/librte_eal/common/eal_private.h
+++ b/lib/librte_eal/common/eal_private.h
@@ -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
diff --git a/lib/librte_eal/linuxapp/eal/eal_memory.c b/lib/librte_eal/linuxapp/eal/eal_memory.c
index bae2507..f4d91df 100644
--- a/lib/librte_eal/linuxapp/eal/eal_memory.c
+++ b/lib/librte_eal/linuxapp/eal/eal_memory.c
@@ -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;
-}
-- 
1.9.1