[dpdk-dev] [PATCH v8 2/5] examples/l3fwd: move l3fwd routes to common header

[Conor Walsh <conor.walsh@intel.com>]

To prevent code duplication from the addition of lookup methods
the routes specified in lpm should be moved to a common header.

Signed-off-by: Conor Walsh <conor.walsh@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Acked-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
---
 examples/l3fwd/l3fwd_lpm.c   | 74 +++++++++---------------------------
 examples/l3fwd/l3fwd_route.h | 19 +++++++++
 examples/l3fwd/main.c        | 31 +++++++++++++++
 3 files changed, 67 insertions(+), 57 deletions(-)
 create mode 100644 examples/l3fwd/l3fwd_route.h

diff --git a/examples/l3fwd/l3fwd_lpm.c b/examples/l3fwd/l3fwd_lpm.c
index 1cfaf36572..351cc91a11 100644
--- a/examples/l3fwd/l3fwd_lpm.c
+++ b/examples/l3fwd/l3fwd_lpm.c
@@ -30,47 +30,7 @@
 #include "l3fwd.h"
 #include "l3fwd_event.h"
 
-struct ipv4_l3fwd_lpm_route {
-	uint32_t ip;
-	uint8_t  depth;
-	uint8_t  if_out;
-};
-
-struct ipv6_l3fwd_lpm_route {
-	uint8_t ip[16];
-	uint8_t  depth;
-	uint8_t  if_out;
-};
-
-/*
- * 198.18.0.0/16 are set aside for RFC2544 benchmarking (RFC5735).
- * 198.18.{0-7}.0/24 = Port {0-7}
- */
-static const struct ipv4_l3fwd_lpm_route ipv4_l3fwd_lpm_route_array[] = {
-	{RTE_IPV4(198, 18, 0, 0), 24, 0},
-	{RTE_IPV4(198, 18, 1, 0), 24, 1},
-	{RTE_IPV4(198, 18, 2, 0), 24, 2},
-	{RTE_IPV4(198, 18, 3, 0), 24, 3},
-	{RTE_IPV4(198, 18, 4, 0), 24, 4},
-	{RTE_IPV4(198, 18, 5, 0), 24, 5},
-	{RTE_IPV4(198, 18, 6, 0), 24, 6},
-	{RTE_IPV4(198, 18, 7, 0), 24, 7},
-};
-
-/*
- * 2001:200::/48 is IANA reserved range for IPv6 benchmarking (RFC5180).
- * 2001:200:0:{0-7}::/64 = Port {0-7}
- */
-static const struct ipv6_l3fwd_lpm_route ipv6_l3fwd_lpm_route_array[] = {
-	{{32, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 64, 0},
-	{{32, 1, 2, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0}, 64, 1},
-	{{32, 1, 2, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0}, 64, 2},
-	{{32, 1, 2, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0}, 64, 3},
-	{{32, 1, 2, 0, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0, 0}, 64, 4},
-	{{32, 1, 2, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 0}, 64, 5},
-	{{32, 1, 2, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 0}, 64, 6},
-	{{32, 1, 2, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0, 0}, 64, 7},
-};
+#include "l3fwd_route.h"
 
 #define IPV4_L3FWD_LPM_MAX_RULES         1024
 #define IPV4_L3FWD_LPM_NUMBER_TBL8S (1 << 8)
@@ -485,18 +445,18 @@ setup_lpm(const int socketid)
 			socketid);
 
 	/* populate the LPM table */
-	for (i = 0; i < RTE_DIM(ipv4_l3fwd_lpm_route_array); i++) {
+	for (i = 0; i < RTE_DIM(ipv4_l3fwd_route_array); i++) {
 		struct in_addr in;
 
 		/* skip unused ports */
-		if ((1 << ipv4_l3fwd_lpm_route_array[i].if_out &
+		if ((1 << ipv4_l3fwd_route_array[i].if_out &
 				enabled_port_mask) == 0)
 			continue;
 
 		ret = rte_lpm_add(ipv4_l3fwd_lpm_lookup_struct[socketid],
-			ipv4_l3fwd_lpm_route_array[i].ip,
-			ipv4_l3fwd_lpm_route_array[i].depth,
-			ipv4_l3fwd_lpm_route_array[i].if_out);
+			ipv4_l3fwd_route_array[i].ip,
+			ipv4_l3fwd_route_array[i].depth,
+			ipv4_l3fwd_route_array[i].if_out);
 
 		if (ret < 0) {
 			rte_exit(EXIT_FAILURE,
@@ -504,11 +464,11 @@ setup_lpm(const int socketid)
 				i, socketid);
 		}
 
-		in.s_addr = htonl(ipv4_l3fwd_lpm_route_array[i].ip);
+		in.s_addr = htonl(ipv4_l3fwd_route_array[i].ip);
 		printf("LPM: Adding route %s / %d (%d)\n",
 		       inet_ntop(AF_INET, &in, abuf, sizeof(abuf)),
-			ipv4_l3fwd_lpm_route_array[i].depth,
-			ipv4_l3fwd_lpm_route_array[i].if_out);
+			ipv4_l3fwd_route_array[i].depth,
+			ipv4_l3fwd_route_array[i].if_out);
 	}
 
 	/* create the LPM6 table */
@@ -525,17 +485,17 @@ setup_lpm(const int socketid)
 			socketid);
 
 	/* populate the LPM table */
-	for (i = 0; i < RTE_DIM(ipv6_l3fwd_lpm_route_array); i++) {
+	for (i = 0; i < RTE_DIM(ipv6_l3fwd_route_array); i++) {
 
 		/* skip unused ports */
-		if ((1 << ipv6_l3fwd_lpm_route_array[i].if_out &
+		if ((1 << ipv6_l3fwd_route_array[i].if_out &
 				enabled_port_mask) == 0)
 			continue;
 
 		ret = rte_lpm6_add(ipv6_l3fwd_lpm_lookup_struct[socketid],
-			ipv6_l3fwd_lpm_route_array[i].ip,
-			ipv6_l3fwd_lpm_route_array[i].depth,
-			ipv6_l3fwd_lpm_route_array[i].if_out);
+			ipv6_l3fwd_route_array[i].ip,
+			ipv6_l3fwd_route_array[i].depth,
+			ipv6_l3fwd_route_array[i].if_out);
 
 		if (ret < 0) {
 			rte_exit(EXIT_FAILURE,
@@ -544,10 +504,10 @@ setup_lpm(const int socketid)
 		}
 
 		printf("LPM: Adding route %s / %d (%d)\n",
-		       inet_ntop(AF_INET6, ipv6_l3fwd_lpm_route_array[i].ip,
+		       inet_ntop(AF_INET6, ipv6_l3fwd_route_array[i].ip,
 				 abuf, sizeof(abuf)),
-		       ipv6_l3fwd_lpm_route_array[i].depth,
-		       ipv6_l3fwd_lpm_route_array[i].if_out);
+		       ipv6_l3fwd_route_array[i].depth,
+		       ipv6_l3fwd_route_array[i].if_out);
 	}
 }
 
diff --git a/examples/l3fwd/l3fwd_route.h b/examples/l3fwd/l3fwd_route.h
new file mode 100644
index 0000000000..89f8634443
--- /dev/null
+++ b/examples/l3fwd/l3fwd_route.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2021 Intel Corporation
+ */
+
+struct ipv4_l3fwd_route {
+	uint32_t ip;
+	uint8_t  depth;
+	uint8_t  if_out;
+};
+
+struct ipv6_l3fwd_route {
+	uint8_t ip[16];
+	uint8_t depth;
+	uint8_t if_out;
+};
+
+extern const struct ipv4_l3fwd_route ipv4_l3fwd_route_array[8];
+
+extern const struct ipv6_l3fwd_route ipv6_l3fwd_route_array[8];
diff --git a/examples/l3fwd/main.c b/examples/l3fwd/main.c
index bb49e5faff..355064a1c7 100644
--- a/examples/l3fwd/main.c
+++ b/examples/l3fwd/main.c
@@ -47,6 +47,7 @@
 
 #include "l3fwd.h"
 #include "l3fwd_event.h"
+#include "l3fwd_route.h"
 
 #define MAX_TX_QUEUE_PER_PORT RTE_MAX_LCORE
 #define MAX_RX_QUEUE_PER_PORT 128
@@ -162,6 +163,36 @@ static struct l3fwd_lkp_mode l3fwd_lpm_lkp = {
 	.get_ipv6_lookup_struct = lpm_get_ipv6_l3fwd_lookup_struct,
 };
 
+/*
+ * 198.18.0.0/16 are set aside for RFC2544 benchmarking (RFC5735).
+ * 198.18.{0-7}.0/24 = Port {0-7}
+ */
+const struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = {
+	{RTE_IPV4(198, 18, 0, 0), 24, 0},
+	{RTE_IPV4(198, 18, 1, 0), 24, 1},
+	{RTE_IPV4(198, 18, 2, 0), 24, 2},
+	{RTE_IPV4(198, 18, 3, 0), 24, 3},
+	{RTE_IPV4(198, 18, 4, 0), 24, 4},
+	{RTE_IPV4(198, 18, 5, 0), 24, 5},
+	{RTE_IPV4(198, 18, 6, 0), 24, 6},
+	{RTE_IPV4(198, 18, 7, 0), 24, 7},
+};
+
+/*
+ * 2001:200::/48 is IANA reserved range for IPv6 benchmarking (RFC5180).
+ * 2001:200:0:{0-7}::/64 = Port {0-7}
+ */
+const struct ipv6_l3fwd_route ipv6_l3fwd_route_array[] = {
+	{{32, 1, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}, 64, 0},
+	{{32, 1, 2, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0}, 64, 1},
+	{{32, 1, 2, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 0}, 64, 2},
+	{{32, 1, 2, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, 0}, 64, 3},
+	{{32, 1, 2, 0, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0, 0}, 64, 4},
+	{{32, 1, 2, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 0}, 64, 5},
+	{{32, 1, 2, 0, 0, 0, 0, 6, 0, 0, 0, 0, 0, 0, 0, 0}, 64, 6},
+	{{32, 1, 2, 0, 0, 0, 0, 7, 0, 0, 0, 0, 0, 0, 0, 0}, 64, 7},
+};
+
 /*
  * Setup lookup methods for forwarding.
  * Currently exact-match and longest-prefix-match
-- 
2.25.1