[dpdk-dev] [PATCH v2] librte_ip_frag: Disable ipv4/v6 fragmentation if RTE_MBUF_REFCNT=n
Pablo de Lara
pablo.de.lara.guarch at intel.com
Wed Oct 22 13:17:01 CEST 2014
rte_ipv4_fragment_packet() and rte_ipv6_fragment packet()
call rte_pktmbuf_attach() to attach the segment of the original
packet to the segment of the new fragmented one. Such function
is not declared if RTE_MBUF_REFCNT is disabled, as it needs to
call rte_mbuf_refcnt_update, not declared either.
Therefore, the ipv4/v6 fragmentation libraries are disabled
in that situation.
Signed-off-by: Pablo de Lara <pablo.de.lara.guarch at intel.com>
---
lib/librte_ip_frag/Makefile | 6 +++++-
lib/librte_ip_frag/rte_ip_frag.h | 5 ++++-
2 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/lib/librte_ip_frag/Makefile b/lib/librte_ip_frag/Makefile
index 2265c93..8c00d39 100644
--- a/lib/librte_ip_frag/Makefile
+++ b/lib/librte_ip_frag/Makefile
@@ -38,9 +38,13 @@ CFLAGS += -O3
CFLAGS += $(WERROR_FLAGS) -I$(SRCDIR)
#source files
+ifeq ($(CONFIG_RTE_MBUF_REFCNT),y)
SRCS-$(CONFIG_RTE_LIBRTE_IP_FRAG) += rte_ipv4_fragmentation.c
-SRCS-$(CONFIG_RTE_LIBRTE_IP_FRAG) += rte_ipv4_reassembly.c
SRCS-$(CONFIG_RTE_LIBRTE_IP_FRAG) += rte_ipv6_fragmentation.c
+else
+$(info WARNING: Fragmentation feature is disabled because it needs MBUF_REFCNT.)
+endif
+SRCS-$(CONFIG_RTE_LIBRTE_IP_FRAG) += rte_ipv4_reassembly.c
SRCS-$(CONFIG_RTE_LIBRTE_IP_FRAG) += rte_ipv6_reassembly.c
SRCS-$(CONFIG_RTE_LIBRTE_IP_FRAG) += rte_ip_frag_common.c
SRCS-$(CONFIG_RTE_LIBRTE_IP_FRAG) += ip_frag_internal.c
diff --git a/lib/librte_ip_frag/rte_ip_frag.h b/lib/librte_ip_frag/rte_ip_frag.h
index e0936dc..230a903 100644
--- a/lib/librte_ip_frag/rte_ip_frag.h
+++ b/lib/librte_ip_frag/rte_ip_frag.h
@@ -175,6 +175,7 @@ rte_ip_frag_table_destroy( struct rte_ip_frag_tbl *tbl)
rte_free(tbl);
}
+#ifdef RTE_MBUF_REFCNT
/**
* This function implements the fragmentation of IPv6 packets.
*
@@ -203,7 +204,7 @@ rte_ipv6_fragment_packet(struct rte_mbuf *pkt_in,
uint16_t mtu_size,
struct rte_mempool *pool_direct,
struct rte_mempool *pool_indirect);
-
+#endif
/*
* This function implements reassembly of fragmented IPv6 packets.
@@ -252,6 +253,7 @@ rte_ipv6_frag_get_ipv6_fragment_header(struct ipv6_hdr *hdr)
return NULL;
}
+#ifdef RTE_MBUF_REFCNT
/**
* IPv4 fragmentation.
*
@@ -280,6 +282,7 @@ int32_t rte_ipv4_fragment_packet(struct rte_mbuf *pkt_in,
uint16_t nb_pkts_out, uint16_t mtu_size,
struct rte_mempool *pool_direct,
struct rte_mempool *pool_indirect);
+#endif
/*
* This function implements reassembly of fragmented IPv4 packets.
--
1.7.4.1
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