[dpdk-dev] [PATCH v4 00/12] mbuf: enhancements of mbuf clones
Neil Horman
nhorman at tuxdriver.com
Mon Apr 20 19:21:40 CEST 2015
On Mon, Apr 20, 2015 at 07:07:31PM +0200, Olivier MATZ wrote:
> Hi Neil,
>
> On 04/20/2015 06:53 PM, Neil Horman wrote:
> > On Mon, Apr 20, 2015 at 05:41:24PM +0200, Olivier Matz wrote:
> >> The first objective of this series is to fix the support of indirect
> >> mbufs when the application reserves a private area in mbufs. It also
> >> removes the limitation that rte_pktmbuf_clone() is only allowed on
> >> direct (non-cloned) mbufs. The series also contains some enhancements
> >> and fixes in the mbuf area that makes the implementation of the
> >> last patches easier.
> >>
> >> Changes in v4:
> >> - do not add a priv_size in mbuf structure, having a proper accessor
> >> to read it from the pool private area is clearer
> >> - prepend some reworks in the mbuf area to simplify the implementation
> >> (fix mbuf initialization by not using a hardcoded mbuf size, add
> >> accessors for mbuf pool private area, add a helper to create a
> >> mbuf pool)
> >>
> >> Changes in v3:
> >> - a mbuf can now attach to another one that have a different private
> >> size. In this case, the m->priv_size corresponds to the size of the
> >> private area of the direct mbuf.
> >> - add comments to reflect these changes
> >> - minor style modifications
> >>
> >> Changes in v2:
> >> - do not change the use of MBUF_EXT_MEM() in vhost
> >> - change rte_mbuf_from_baddr() to rte_mbuf_from_indirect(), removing
> >> one parameter
> >> - fix and rework rte_pktmbuf_detach()
> >> - move m->priv_size in second mbuf cache line
> >> - fix mbuf free in test error case
> >>
> >>
> >> Olivier Matz (12):
> >> mbuf: fix mbuf data room size calculation rte_pktmbuf_pool_init
> >> examples: always initialize mbuf_pool private area
> >> mbuf: add accessors to get data room size and private size
> >> mbuf: fix rte_pktmbuf_init when mbuf private size is not zero
> >> testpmd: use standard functions to initialize mbufs and mbuf pool
> >> mbuf: introduce a new helper to create a mbuf pool
> >> apps: use rte_pktmbuf_pool_create to create mbuf pools
> >> mbuf: fix clone support when application uses private mbuf data
> >> mbuf: allow to clone an indirect mbuf
> >> test/mbuf: rename mc variable in m
> >> test/mbuf: enhance mbuf refcnt test
> >> test/mbuf: verify that cloning a clone works properly
> >>
> >> app/test-pipeline/init.c | 15 +-
> >> app/test-pmd/testpmd.c | 78 +--------
> >> app/test/test_distributor.c | 10 +-
> >> app/test/test_distributor_perf.c | 10 +-
> >> app/test/test_kni.c | 16 +-
> >> app/test/test_link_bonding.c | 10 +-
> >> app/test/test_link_bonding_mode4.c | 12 +-
> >> app/test/test_mbuf.c | 110 +++++++++---
> >> app/test/test_pmd_perf.c | 11 +-
> >> app/test/test_pmd_ring.c | 10 +-
> >> app/test/test_reorder.c | 10 +-
> >> app/test/test_sched.c | 16 +-
> >> app/test/test_table.c | 9 +-
> >> app/test/test_table.h | 3 +-
> >> doc/guides/rel_notes/updating_apps.rst | 16 ++
> >> examples/bond/main.c | 10 +-
> >> examples/distributor/main.c | 11 +-
> >> examples/dpdk_qat/main.c | 10 +-
> >> examples/exception_path/main.c | 14 +-
> >> examples/ip_fragmentation/main.c | 18 +-
> >> examples/ip_pipeline/init.c | 28 +--
> >> examples/ipv4_multicast/main.c | 21 +--
> >> examples/kni/main.c | 12 +-
> >> examples/l2fwd-ivshmem/host/host.c | 10 +-
> >> examples/l2fwd-jobstats/main.c | 10 +-
> >> examples/l2fwd/main.c | 11 +-
> >> examples/l3fwd-acl/main.c | 11 +-
> >> examples/l3fwd-power/main.c | 11 +-
> >> examples/l3fwd-vf/main.c | 12 +-
> >> examples/l3fwd/main.c | 10 +-
> >> examples/link_status_interrupt/main.c | 10 +-
> >> examples/load_balancer/init.c | 12 +-
> >> examples/load_balancer/main.h | 4 +-
> >> .../client_server_mp/mp_server/init.c | 10 +-
> >> examples/multi_process/symmetric_mp/main.c | 10 +-
> >> examples/netmap_compat/bridge/bridge.c | 12 +-
> >> examples/packet_ordering/main.c | 11 +-
> >> examples/qos_meter/main.c | 7 +-
> >> examples/qos_sched/init.c | 10 +-
> >> examples/qos_sched/main.h | 2 +-
> >> examples/quota_watermark/include/conf.h | 2 +-
> >> examples/quota_watermark/qw/main.c | 7 +-
> >> examples/rxtx_callbacks/main.c | 11 +-
> >> examples/skeleton/basicfwd.c | 13 +-
> >> examples/vhost/main.c | 31 ++--
> >> examples/vhost_xen/main.c | 11 +-
> >> examples/vmdq/main.c | 11 +-
> >> examples/vmdq_dcb/main.c | 10 +-
> >> lib/librte_ether/rte_ethdev.c | 4 +-
> >> lib/librte_mbuf/rte_mbuf.c | 63 +++++--
> >> lib/librte_mbuf/rte_mbuf.h | 189 ++++++++++++++++-----
> >> lib/librte_pmd_af_packet/rte_eth_af_packet.c | 6 +-
> >> lib/librte_pmd_bond/rte_eth_bond_alb.c | 16 +-
> >> lib/librte_pmd_e1000/em_rxtx.c | 5 +-
> >> lib/librte_pmd_e1000/igb_rxtx.c | 12 +-
> >> lib/librte_pmd_fm10k/fm10k_ethdev.c | 6 +-
> >> lib/librte_pmd_i40e/i40e_ethdev_vf.c | 6 +-
> >> lib/librte_pmd_i40e/i40e_rxtx.c | 15 +-
> >> lib/librte_pmd_ixgbe/ixgbe_rxtx.c | 12 +-
> >> lib/librte_pmd_pcap/rte_eth_pcap.c | 5 +-
> >> lib/librte_pmd_vmxnet3/vmxnet3_rxtx.c | 7 +-
> >> 61 files changed, 499 insertions(+), 566 deletions(-)
> >>
> >> --
> >> 2.1.4
> >>
> >>
> >
> >
> > [nhorman at hmsreliant dpdk]$ make config T=x86_64-native-linuxapp-gcc
> > Configuration done
> > [nhorman at hmsreliant dpdk]$ make
> > ...
> > CC test_kvargs.o
> > LD test
> > test_pmd_perf.o: In function `test_pmd_perf':
> > test_pmd_perf.c:(.text+0xd1b): undefined reference to `rte_pktmbuf_pool_create'
> > test_table.o: In function `test_table':
> > test_table.c:(.text+0x2da): undefined reference to `rte_pktmbuf_pool_create'
> > test_mbuf.o: In function `test_mbuf':
> > test_mbuf.c:(.text+0x3d5c): undefined reference to `rte_pktmbuf_pool_create'
> > test_mbuf.c:(.text+0x542a): undefined reference to `rte_pktmbuf_pool_create'
> > test_sched.o: In function `test_sched':
> > test_sched.c:(.text+0x5b1): undefined reference to `rte_pktmbuf_pool_create'
> > test_distributor.o:test_distributor.c:(.text+0x40a9): more undefined references
> > to `rte_pktmbuf_pool_create' follow
>
> I cannot reproduce the issue. Maybe you forgot to clean something?
>
Nope, fresh clone. You didn't try building with shared libraries configured :)
Neil
>
> matz at glumotte:~/DEV/toto$ git clone http://dpdk.org/git/dpdk
> Cloning into 'dpdk'...
> remote: Counting objects: 24195, done.
> remote: Compressing objects: 100% (5000/5000), done.
> remote: Total 24195 (delta 19183), reused 23953 (delta 19014)
> Receiving objects: 100% (24195/24195), 20.39 MiB | 199.00 KiB/s, done.
> Resolving deltas: 100% (19183/19183), done.
> Checking connectivity... done.
> matz at glumotte:~/DEV/toto$ cd dpdk/
> matz at glumotte:~/DEV/toto/dpdk$ git am /tmp/mbuf_clone_v4/*
> Applying: mbuf: fix mbuf data room size calculation rte_pktmbuf_pool_init
> Applying: examples: always initialize mbuf_pool private area
> Applying: mbuf: add accessors to get data room size and private size
> Applying: mbuf: fix rte_pktmbuf_init when mbuf private size is not zero
> Applying: testpmd: use standard functions to initialize mbufs and mbuf pool
> Applying: mbuf: introduce a new helper to create a mbuf pool
> Applying: apps: use rte_pktmbuf_pool_create to create mbuf pools
> Applying: mbuf: fix clone support when application uses private mbuf data
> Applying: mbuf: allow to clone an indirect mbuf
> Applying: test/mbuf: rename mc variable in m
> Applying: test/mbuf: enhance mbuf refcnt test
> Applying: test/mbuf: verify that cloning a clone works properly
> matz at glumotte:~/DEV/toto/dpdk$ make config T=x86_64-native-linuxapp-gcc
> Configuration done
> matz at glumotte:~/DEV/toto/dpdk$ make
> == Build lib
> [...]
> CC main.o
> LD dump_cfg
> INSTALL-APP dump_cfg
> INSTALL-MAP dump_cfg.map
> Build complete
>
>
> Regards,
> Olivier
>
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