pcap: add new driver

This PMD uses libpcap to send/receive packets to/from any NIC.
It can also read/write to/from a file.

Signed-off-by: Intel

app/test-pmd/Makefile

@@ -39,6 +39,10 @@ APP = testpmd
 CFLAGS += -O3
 CFLAGS += $(WERROR_FLAGS)
 
+ifeq ($(CONFIG_RTE_LIBRTE_PMD_PCAP),y)
+LDFLAGS += -lpcap
+endif
+
 #
 # all source are stored in SRCS-y
 #

config/defconfig_i686-default-linuxapp-gcc

@@ -175,6 +175,12 @@ CONFIG_RTE_LIBRTE_PMD_RING=y
 CONFIG_RTE_PMD_RING_MAX_RX_RINGS=16
 CONFIG_RTE_PMD_RING_MAX_TX_RINGS=16
 
+#
+# Compile software PMD backed by PCAP files
+#
+CONFIG_RTE_LIBRTE_PMD_PCAP=n
+
+
 #
 # Compile librte_ring
 #

config/defconfig_i686-default-linuxapp-icc

@@ -176,6 +176,11 @@ CONFIG_RTE_LIBRTE_PMD_RING=y
 CONFIG_RTE_PMD_RING_MAX_RX_RINGS=16
 CONFIG_RTE_PMD_RING_MAX_TX_RINGS=16
 
+#
+# Compile software PMD backed by PCAP files
+#
+CONFIG_RTE_LIBRTE_PMD_PCAP=n
+
 #
 # Compile librte_ring
 #

config/defconfig_x86_64-default-linuxapp-gcc

@@ -182,6 +182,11 @@ CONFIG_RTE_LIBRTE_PMD_RING=y
 CONFIG_RTE_PMD_RING_MAX_RX_RINGS=16
 CONFIG_RTE_PMD_RING_MAX_TX_RINGS=16
 
+#
+# Compile software PMD backed by PCAP files
+#
+CONFIG_RTE_LIBRTE_PMD_PCAP=n
+
 #
 # Do prefetch of packet data within PMD driver receive function
 #

config/defconfig_x86_64-default-linuxapp-icc

@@ -171,6 +171,11 @@ CONFIG_RTE_LIBRTE_PMD_RING=y
 CONFIG_RTE_PMD_RING_MAX_RX_RINGS=16
 CONFIG_RTE_PMD_RING_MAX_TX_RINGS=16
 
+#
+# Compile software PMD backed by PCAP files
+#
+CONFIG_RTE_LIBRTE_PMD_PCAP=n
+
 #
 # Do prefetch of packet data within PMD driver receive function
 #

lib/Makefile

@@ -43,6 +43,7 @@ DIRS-$(CONFIG_RTE_LIBRTE_ETHER) += librte_ether
 DIRS-$(CONFIG_RTE_LIBRTE_E1000_PMD) += librte_pmd_e1000
 DIRS-$(CONFIG_RTE_LIBRTE_IXGBE_PMD) += librte_pmd_ixgbe
 DIRS-$(CONFIG_RTE_LIBRTE_PMD_RING) += librte_pmd_ring
+DIRS-$(CONFIG_RTE_LIBRTE_PMD_PCAP) += librte_pmd_pcap
 DIRS-$(CONFIG_RTE_LIBRTE_HASH) += librte_hash
 DIRS-$(CONFIG_RTE_LIBRTE_LPM) += librte_lpm
 DIRS-$(CONFIG_RTE_LIBRTE_NET) += librte_net

lib/librte_eal/common/eal_common_nonpci_devs.c

@@ -36,6 +36,9 @@
 #ifdef RTE_LIBRTE_PMD_RING
 #include <rte_eth_ring.h>
 #endif
+#ifdef RTE_LIBRTE_PMD_PCAP
+#include <rte_eth_pcap.h>
+#endif
 #include "eal_private.h"
 
 struct device_init {
@@ -50,6 +53,12 @@ struct device_init dev_types[] = {
 			.dev_prefix = RTE_ETH_RING_PARAM_NAME,
 			.init_fn = rte_pmd_ring_init
 		},
+#endif
+#ifdef RTE_LIBRTE_PMD_PCAP
+		{
+			.dev_prefix = RTE_ETH_PCAP_PARAM_NAME,
+			.init_fn = rte_pmd_pcap_init
+		},
 #endif
 		{
 			.dev_prefix = "-nodev-",

lib/librte_eal/common/eal_common_whitelist.c

@@ -48,6 +48,9 @@
 #ifdef RTE_LIBRTE_PMD_RING
 #include <rte_eth_ring.h>
 #endif
+#ifdef RTE_LIBRTE_PMD_PCAP
+#include <rte_eth_pcap.h>
+#endif
 #include "eal_private.h"
 
 static char dev_list_str[4096];
@@ -96,6 +99,9 @@ is_valid_wl_entry(const char *device_str, size_t dev_buf_len)
 	static const char *non_pci_prefixes[] = {
 #ifdef  RTE_LIBRTE_PMD_RING
 			RTE_ETH_RING_PARAM_NAME,
+#endif
+#ifdef RTE_LIBRTE_PMD_PCAP
+			RTE_ETH_PCAP_PARAM_NAME,
 #endif
 			"-nodev-" /* dummy value to prevent compiler warnings */
 	};

lib/librte_eal/linuxapp/eal/Makefile

@@ -42,6 +42,7 @@ CFLAGS += -I$(RTE_SDK)/lib/librte_mempool
 CFLAGS += -I$(RTE_SDK)/lib/librte_malloc
 CFLAGS += -I$(RTE_SDK)/lib/librte_ether
 CFLAGS += -I$(RTE_SDK)/lib/librte_pmd_ring
+CFLAGS += -I$(RTE_SDK)/lib/librte_pmd_pcap
 CFLAGS += $(WERROR_FLAGS) -O3
 
 # specific to linuxapp exec-env

lib/librte_pmd_pcap/Makefile

@@ -0,0 +1,58 @@
+#   BSD LICENSE
+# 
+#   Copyright(c) 2010-2013 Intel Corporation. All rights reserved.
+#   All rights reserved.
+# 
+#   Redistribution and use in source and binary forms, with or without
+#   modification, are permitted provided that the following conditions
+#   are met:
+# 
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in
+#       the documentation and/or other materials provided with the
+#       distribution.
+#     * Neither the name of Intel Corporation nor the names of its
+#       contributors may be used to endorse or promote products derived
+#       from this software without specific prior written permission.
+# 
+#   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+#   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+#   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+#   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+#   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+#   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+#   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+#   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+#   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+#   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+#   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+#
+# library name
+#
+LIB = librte_pmd_pcap.a
+
+CFLAGS += -O3
+CFLAGS += $(WERROR_FLAGS)
+
+#
+# all source are stored in SRCS-y
+#
+SRCS-$(CONFIG_RTE_LIBRTE_IXGBE_PMD) += rte_eth_pcap.c
+SRCS-$(CONFIG_RTE_LIBRTE_IXGBE_PMD) += rte_eth_pcap_arg_parser.c
+
+
+#
+# Export include files
+#
+SYMLINK-y-include += rte_eth_pcap.h
+SYMLINK-y-include += rte_eth_pcap_arg_parser.h
+
+# this lib depends upon:
+DEPDIRS-$(CONFIG_RTE_LIBRTE_IXGBE_PMD) += lib/librte_mbuf lib/librte_ether
+
+include $(RTE_SDK)/mk/rte.lib.mk