[ovs-dev] [PATCH 1/2] netdev-dpdk: Move to DPDK 1.7.0
Daniele Di Proietto
ddiproietto at vmware.com
Wed Aug 13 15:52:25 UTC 2014
On 8/12/14, 5:39 PM, "Pravin Shelar" <pshelar at nicira.com> wrote:
>On Tue, Aug 12, 2014 at 10:43 AM, Daniele Di Proietto
><ddiproietto at vmware.com> wrote:
>> With this commit we move our DPDK support to 1.7.0.
>> DPDK binaries (starting with dpdk 1.7.0) should be linked with
>>--whole-archive
>> to include pmd drivers
>>
>I updated INSTALL.DPDK file and pushed patch to master.
Thanks,
Daniele
>
>> Signed-off-by: Daniele Di Proietto <ddiproietto at vmware.com>
>> ---
>> INSTALL.DPDK | 12 ++++++------
>> acinclude.m4 | 13 ++++++++++++-
>> lib/netdev-dpdk.c | 12 ++++--------
>> tests/ovs_client/ovs_client.c | 4 ++--
>> 4 files changed, 24 insertions(+), 17 deletions(-)
>>
>> diff --git a/INSTALL.DPDK b/INSTALL.DPDK
>> index c74fa5c..3d062e5 100644
>> --- a/INSTALL.DPDK
>> +++ b/INSTALL.DPDK
>> @@ -14,12 +14,12 @@ and "make".
>> Building and Installing:
>> ------------------------
>>
>> -Recommended to use DPDK 1.6.
>> +Recommended to use DPDK 1.7.
>>
>> DPDK:
>> -Set dir i.g.: export DPDK_DIR=/usr/src/dpdk-1.6.0r2
>> +Set dir i.g.: export DPDK_DIR=/usr/src/dpdk-1.7.0
>> cd $DPDK_DIR
>> -update config/defconfig_x86_64-default-linuxapp-gcc so that dpdk
>>generate single lib file.
>> +update config/common_linuxapp so that dpdk generate single lib file.
>> CONFIG_RTE_BUILD_COMBINE_LIBS=y
>>
>> make install T=x86_64-default-linuxapp-gcc
>> @@ -32,7 +32,7 @@ DPDK kernel requirement.
>> OVS:
>> cd $(OVS_DIR)/openvswitch
>> ./boot.sh
>> -export DPDK_BUILD=/usr/src/dpdk-1.6.0r2/x86_64-default-linuxapp-gcc
>> +export DPDK_BUILD=/usr/src/dpdk-1.7.0/x86_64-default-linuxapp-gcc
>> ./configure --with-dpdk=$DPDK_BUILD
>> make
>>
>> @@ -50,8 +50,8 @@ First setup DPDK devices:
>> e.g. modprobe uio
>> - insert igb_uio.ko
>> e.g. insmod DPDK/x86_64-default-linuxapp-gcc/kmod/igb_uio.ko
>> - - Bind network device to ibg_uio.
>> - e.g. DPDK/tools/pci_unbind.py --bind=igb_uio eth1
>> + - Bind network device to igb_uio.
>> + e.g. DPDK/tools/dpdk_nic_bind.py --bind=igb_uio eth1
>> Alternate binding method:
>> Find target Ethernet devices
>> lspci -nn|grep Ethernet
>> diff --git a/acinclude.m4 b/acinclude.m4
>> index aa9ffcd..e6a6a88 100644
>> --- a/acinclude.m4
>> +++ b/acinclude.m4
>> @@ -170,6 +170,7 @@ AC_DEFUN([OVS_CHECK_DPDK], [
>>
>> DPDK_INCLUDE=$RTE_SDK/include
>> DPDK_LIB_DIR=$RTE_SDK/lib
>> + DPDK_LIB=-lintel_dpdk
>>
>> LDFLAGS="$LDFLAGS -L$DPDK_LIB_DIR"
>> CFLAGS="$CFLAGS -I$DPDK_INCLUDE"
>> @@ -184,7 +185,7 @@ AC_DEFUN([OVS_CHECK_DPDK], [
>> found=false
>> save_LIBS=$LIBS
>> for extras in "" "-ldl"; do
>> - LIBS="-lintel_dpdk $extras $save_LIBS"
>> + LIBS="$DPDK_LIB $extras $save_LIBS"
>> AC_LINK_IFELSE(
>> [AC_LANG_PROGRAM([#include <rte_config.h>
>> #include <rte_eal.h>],
>> @@ -199,6 +200,16 @@ AC_DEFUN([OVS_CHECK_DPDK], [
>> AC_MSG_ERROR([cannot link with dpdk])
>> fi
>>
>> + # DPDK 1.7.0 pmd drivers are not linked unless --whole-archive is
>>used.
>> + #
>> + # This happens because the rest of the DPDK code doesn't use any
>>symbol in
>> + # the pmd driver objects, and the drivers register themselves
>>using an
>> + # __attribute__((constructor)) function.
>> + #
>> + # These options are specified inside a single -Wl directive to
>>prevent
>> + # autotools from reordering them.
>> +
>>vswitchd_ovs_vswitchd_LDFLAGS=-Wl,--whole-archive,$DPDK_LIB,--no-whole-ar
>>chive
>> + AC_SUBST([vswitchd_ovs_vswitchd_LDFLAGS])
>> AC_DEFINE([DPDK_NETDEV], [1], [System uses the DPDK module.])
>> else
>> RTE_SDK=
>> diff --git a/lib/netdev-dpdk.c b/lib/netdev-dpdk.c
>> index 6ee9803..f2202b4 100644
>> --- a/lib/netdev-dpdk.c
>> +++ b/lib/netdev-dpdk.c
>> @@ -1199,12 +1199,6 @@ dpdk_class_init(void)
>> {
>> int result;
>>
>> - result = rte_pmd_init_all();
>> - if (result) {
>> - VLOG_ERR("Cannot init PMD");
>> - return -result;
>> - }
>> -
>> result = rte_eal_pci_probe();
>> if (result) {
>> VLOG_ERR("Cannot probe PCI");
>> @@ -1253,7 +1247,9 @@ dpdk_ring_create(const char dev_name[], unsigned
>>int port_no,
>> return ENOMEM;
>> }
>>
>> - err = rte_eth_from_rings(&ivshmem->cring_rx, 1,
>>&ivshmem->cring_tx, 1, SOCKET0);
>> + err = rte_eth_from_rings(dev_name, &ivshmem->cring_rx, 1,
>> + &ivshmem->cring_tx, 1, SOCKET0);
>> +
>> if (err < 0) {
>> rte_free(ivshmem);
>> return ENODEV;
>> @@ -1400,7 +1396,7 @@ dpdk_init(int argc, char **argv)
>> ovs_abort(result, "Cannot init EAL\n");
>> }
>>
>> - rte_memzone_dump();
>> + rte_memzone_dump(stdout);
>> rte_eal_init_ret = 0;
>>
>> if (argc > result) {
>> diff --git a/tests/ovs_client/ovs_client.c
>>b/tests/ovs_client/ovs_client.c
>> index bfc425e..6387624 100644
>> --- a/tests/ovs_client/ovs_client.c
>> +++ b/tests/ovs_client/ovs_client.c
>> @@ -72,7 +72,7 @@ get_rx_queue_name(unsigned id)
>> */
>> static char buffer[sizeof(MP_CLIENT_RXQ_NAME) + 2];
>>
>> - rte_snprintf(buffer, sizeof(buffer) - 1, MP_CLIENT_RXQ_NAME, id);
>> + snprintf(buffer, sizeof(buffer) - 1, MP_CLIENT_RXQ_NAME, id);
>> return buffer;
>> }
>>
>> @@ -87,7 +87,7 @@ get_tx_queue_name(unsigned id)
>> */
>> static char buffer[sizeof(MP_CLIENT_TXQ_NAME) + 2];
>>
>> - rte_snprintf(buffer, sizeof(buffer) - 1, MP_CLIENT_TXQ_NAME, id);
>> + snprintf(buffer, sizeof(buffer) - 1, MP_CLIENT_TXQ_NAME, id);
>> return buffer;
>> }
>>
>> --
>> 2.0.1
>>
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