Commit Graph

2717 Commits

Author SHA1 Message Date
Thomas Monjalon
e65b5069fd ethdev: rename library for consistency
The library was named libethdev without rte_ prefix.
It is now fixed, the library namespace is consistent.

Note: the ABI version has already been changed in this release cycle.

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
2016-11-06 20:53:23 +01:00
Shreyansh Jain
6ba1affa54 lib: fix ABI version after device model rework
rte_device/driver generalization patches [1] were merged without a change
in the LIBABIVER variable. This patches bumps the macro of affected libs:

- libcryptodev and libetherdev have been bumped
- librte_eal version changed in
  d7e61ad3ae ("log: remove deprecated history dump")

Details of ABI/API changes:
- EAL [version already bumped in: d7e61ad3ae]
  |- type field was removed from rte_driver
  |- rte_pci_device now embeds rte_device
  |- rte_pci_resource renamed to rte_mem_resource
  |- numa_node and devargs of rte_pci_driver is moved to rte_driver
  |- APIs for device hotplug (attach/detach) moved into EAL
  |- API rte_eal_pci_device_name added for PCI device naming
  |- vdev registration API introduced (rte_eal_vdrv_register,
  |  rte_eal_vdrv_unregister

- librte_crypto (v 1=>2)
  |- removed rte_cryptodev_create_unique_device_name API
  |- moved device naming to EAL

- librte_ethdev (v 4=>5)
  |- rte_eth_dev_type is removed
  |- removed dev_type from rte_eth_dev_allocate API
  |- removed API rte_eth_dev_get_device_type
  |- removed API rte_eth_dev_get_addr_by_port
  |- removed API rte_eth_dev_get_port_by_addr
  |- removed rte_cryptodev_create_unique_device_name API
  |- moved device naming to EAL

Also, deprecation notice from 16.07 has been removed and release notes for
16.11 added.

[1] http://dpdk.org/ml/archives/dev/2016-September/047087.html

Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
2016-11-06 20:53:23 +01:00
Thomas Monjalon
ca41215c05 version: 16.11-rc2
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
2016-10-26 23:51:42 +02:00
Reshma Pattan
bb900072ff pdump: revert PCI device name conversion
Earlier ethdev library created the device names in the
"bus:device.func" format hence pdump library implemented
its own conversion method for changing the user passed
device name format "domain🚌device.func" to "bus:device.func"
for finding the port id using device name using ethdev library
calls. Now after ethdev and eal rework
http://dpdk.org/dev/patchwork/patch/15855/,
the device names are created in the format "domain🚌device.func",
so pdump library conversion is not needed any more, hence removed
the corresponding code.

Signed-off-by: Reshma Pattan <reshma.pattan@intel.com>
Acked-by: Fan Zhang <roy.fan.zhang@intel.com>
2016-10-26 21:54:38 +02:00
Slawomir Mrozowicz
8a9867a635 crypto/openssl: rename libcrypto to openssl
This patch replaces name "libcrypto" to "openssl" from file directories,
symbol prefixes and sub-names connected with old name.
Renamed poll mode driver files, test files, and documentations.
It is done to better name association with library because
the cryptography operations are using Openssl library crypto API.

Fixes: d61f70b4c9 ("crypto/libcrypto: add driver for OpenSSL library")

Signed-off-by: Slawomir Mrozowicz <slawomirx.mrozowicz@intel.com>
Acked-by: Deepak Kumar Jain <deepak.k.jain@intel.com>
2016-10-26 14:58:37 +02:00
Maxime Coquelin
2a51b1091c vhost: support indirect descriptor in non-mergeable Rx
Linux virtio-net kernel driver uses indirect descriptors when
mergeable buffers are not used.

This patch adds its support, fixing the use of indirect
descriptors with these guests.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Acked-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
2016-10-26 13:39:09 +02:00
Maxime Coquelin
1be4ebb1c4 vhost: support indirect descriptor in mergeable Rx
Windows virtio-net driver uses indirect descriptors with
mergeable buffers.

This patch adds its support, fixing the use of indirect
descriptors with these guests.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Acked-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
2016-10-26 13:39:09 +02:00
Yuanhan Liu
54524e0391 vhost: fix use after free
Fix the coverity USE_AFTER_FREE issue.

Coverity issue: 137884
Fixes: a277c71598 ("vhost: refactor code structure")

Reported-by: John McNamara <john.mcnamara@intel.com>
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
2016-10-26 13:39:09 +02:00
Yuanhan Liu
f2f5bc8f30 vhost: retrieve available head once
There is no need to retrieve the latest avail head every time we enqueue
a packet in the mereable Rx path by

    avail_idx = *((volatile uint16_t *)&vq->avail->idx);

Instead, we could just retrieve it once at the beginning of the enqueue
path. This could diminish the cache penalty slightly, because the virtio
driver could be updating it while vhost is reading it (for each packet).

Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Signed-off-by: Zhihong Wang <zhihong.wang@intel.com>
Reviewed-by: Jianbo Liu <jianbo.liu@linaro.org>
Tested-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2016-10-26 13:39:09 +02:00
Yuanhan Liu
45847f015d vhost: prefetch available ring
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Signed-off-by: Zhihong Wang <zhihong.wang@intel.com>
Reviewed-by: Jianbo Liu <jianbo.liu@linaro.org>
Tested-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2016-10-26 13:39:09 +02:00
Zhihong Wang
f689586bc0 vhost: shadow used ring update
The basic idea is to shadow the used ring update: update them into a
local buffer first, and then flush them all to the virtio used vring
at once in the end.

And since we do avail ring reservation before enqueuing data, we would
know which and how many descs will be used. Which means we could update
the shadow used ring at the reservation time. It also introduce another
slight advantage: we don't need access the desc->flag any more inside
copy_mbuf_to_desc_mergeable().

Signed-off-by: Zhihong Wang <zhihong.wang@intel.com>
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Reviewed-by: Jianbo Liu <jianbo.liu@linaro.org>
Tested-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2016-10-26 13:39:09 +02:00
Yuanhan Liu
fcdbe1fe1a vhost: use last available index for ring reservation
shadow_used_ring will be introduced later. Since then last avail
idx will not be updated together with last used idx.

So, here we use last_avail_idx for avail ring reservation.

Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Signed-off-by: Zhihong Wang <zhihong.wang@intel.com>
Reviewed-by: Jianbo Liu <jianbo.liu@linaro.org>
Tested-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2016-10-26 13:39:09 +02:00
Yuanhan Liu
3f9e48f7da vhost: simplify mergeable Rx vring reservation
Let it return "num_buffers" we reserved, so that we could re-use it
with copy_mbuf_to_desc_mergeable() directly, instead of calculating
it again there.

Meanwhile, the return type of copy_mbuf_to_desc_mergeable is changed
to "int". -1 will be return on error.

Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Signed-off-by: Zhihong Wang <zhihong.wang@intel.com>
Reviewed-by: Jianbo Liu <jianbo.liu@linaro.org>
Tested-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2016-10-26 13:39:09 +02:00
Zhihong Wang
e7ef688562 vhost: optimize cache access
This patch reorders the code to delay virtio header write to improve
cache access efficiency for cases where the mrg_rxbuf feature is turned
on. CPU pipeline stall cycles can be significantly reduced.

Virtio header write and mbuf data copy are all remote store operations
which takes a long time to finish. It's a good idea to put them together
to remove bubbles in between, to let as many remote store instructions
as possible go into store buffer at the same time to hide latency, and
to let the H/W prefetcher goes to work as early as possible.

On a Haswell machine, about 100 cycles can be saved per packet by this
patch alone. Taking 64B packets traffic for example, this means about 60%
efficiency improvement for the enqueue operation.

Signed-off-by: Zhihong Wang <zhihong.wang@intel.com>
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Reviewed-by: Jianbo Liu <jianbo.liu@linaro.org>
Tested-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2016-10-26 13:39:09 +02:00
Zhihong Wang
b24fb48886 vhost: remove useless volatile
last_used_idx is a local var, there is no need to decorate it
by "volatile".

Signed-off-by: Zhihong Wang <zhihong.wang@intel.com>
Reviewed-by: Jianbo Liu <jianbo.liu@linaro.org>
Tested-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2016-10-26 13:39:09 +02:00
Maxime Coquelin
c843af3aa1 vhost: access header only if offloading is supported
If offloading features are not negotiated, parsing the virtio header
is not needed.

Micro-benchmark with testpmd shows that the gain is +4% with indirect
descriptors, +1% when using direct descriptors.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Acked-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
2016-10-26 13:39:09 +02:00
E. Scott Daniels
dbffbf80e9 ethdev: prevent duplicate event callback
This change prevents the attempt to add a structure which is
already on the callback list. If a struct with matching
parameters is found on the list, then no action is taken.

Fixes: ac2f69c ("ethdev: fix crash if malloc of user callback fails")

Signed-off-by: E. Scott Daniels <daniels@research.att.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
2016-10-25 23:30:23 +02:00
Wei Dai
1e975578bc mempool: fix search of maximum contiguous pages
paddr[i] + pg_sz always points to the start physical address of the
2nd page after pddr[i], so only up to 2 pages can be combinded to
be used. With this revision, more than 2 pages can be used.

Fixes: 84121f1971 ("mempool: store memory chunks in a list")

Signed-off-by: Wei Dai <wei.dai@intel.com>
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
2016-10-25 23:18:47 +02:00
Jan Blunck
d63eed6b2d eal: add driver name alias
This adds infrastructure for drivers to allow being requested by an alias
so that a renamed driver can still get loaded by its legacy name.

Signed-off-by: Jan Blunck <jblunck@infradead.org>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Tested-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
Reviewed-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
2016-10-25 18:49:18 +02:00
Ferruh Yigit
6445198f80 kni: fix build with kernel 4.9
compile error:
  CC [M]  .../lib/librte_eal/linuxapp/kni/igb_main.o
.../lib/librte_eal/linuxapp/kni/igb_main.c:2317:21:
error: initialization from incompatible pointer type
	[-Werror=incompatible-pointer-types]
  .ndo_set_vf_vlan = igb_ndo_set_vf_vlan,
                     ^~~~~~~~~~~~~~~~~~~

Linux kernel 4.9 updates API for ndo_set_vf_vlan:
Linux: 79aab093a0b5 ("net: Update API for VF vlan protocol 802.1ad support")

Use new API for Linux kernels >= 4.9

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Tested-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
2016-10-25 16:20:43 +02:00
Ferruh Yigit
1735110509 kni: fix build with kernel < 3.1
compile error:
  CC [M]  .../lib/librte_eal/linuxapp/kni/kni_misc.o
cc1: warnings being treated as errors
.../lib/librte_eal/linuxapp/kni/kni_misc.c: In function ‘kni_exit_net’:
.../lib/librte_eal/linuxapp/kni/kni_misc.c:113:18:
error: unused variable ‘knet’

For kernel versions < v3.1 mutex_destroy() is a macro and does nothing,
this cause an unused variable warning for knet which used in the
mutex_destroy()

mutex_destroy() converted into static inline function with commit:
Linux: 4582c0a4866e ("mutex: Make mutex_destroy() an inline function")

To fix the warning unused attribute added to the knet variable.

Fixes: 93a298b34e ("kni: support core id parameter in single threaded mode")

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2016-10-14 22:21:28 +02:00
Thomas Monjalon
fed622dfd9 version: 16.11-rc1
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
2016-10-14 02:34:11 +02:00
Bernard Iremonger
c1ceaf3ad0 ethdev: add an argument to internal callback function
add cb_arg parameter to the _rte_eth_dev_callback_process function.

Adding a parameter to this function allows passing information
to the application when an eth device event occurs such as
a VF to PF message.
This allows the application to decide if a particular function
is permitted.

Signed-off-by: Bernard Iremonger <bernard.iremonger@intel.com>
Signed-off-by: Alex Zelezniak <alexz@att.com>
2016-10-14 02:01:52 +02:00
Shreyansh Jain
01f1922786 drivers: rename register macro prefix
All macros related to driver registeration renamed from DRIVER_*
to RTE_PMD_*

This includes:

 DRIVER_REGISTER_PCI -> RTE_PMD_REGISTER_PCI
 DRIVER_REGISTER_PCI_TABLE -> RTE_PMD_REGISTER_PCI_TABLE
 DRIVER_REGISTER_VDEV -> RTE_PMD_REGISTER_VDEV
 DRIVER_REGISTER_PARAM_STRING -> RTE_PMD_REGISTER_PARAM_STRING
 DRIVER_EXPORT_* -> RTE_PMD_EXPORT_*

Fix PMDINFOGEN tool to look for matches of RTE_PMD_REGISTER_*.

Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
2016-10-14 01:49:32 +02:00
Ferruh Yigit
473c4957a4 kni: move kernel version ifdefs to compat header
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2016-10-13 23:12:26 +02:00
Ferruh Yigit
dd6d3570c8 kni: prefer uint32_t to unsigned int
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2016-10-13 23:12:11 +02:00
Ferruh Yigit
e4728a1cfa kni: update log messages
Remove some function entrance logs and changed log level of some logs.

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2016-10-13 23:12:00 +02:00
Ferruh Yigit
f13fbc033a kni: remove compile time debug configuration
Since switched to kernel dynamic debugging it is possible to remove
compile time debug log configuration.

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2016-10-13 23:11:26 +02:00
Ferruh Yigit
dec1ffcae7 kni: move functions to eliminate declarations
Function implementations kept same.

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2016-10-13 23:11:12 +02:00
Ferruh Yigit
d2d7d6fc5f kni: remove unnecessary messages for out of memory
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2016-10-13 23:09:12 +02:00
Ferruh Yigit
dd3e4e36d4 kni: update kernel logging
Switch to dynamic logging functions. Depending kernel configuration this
may cause previously visible logs disappear.

How to enable dynamic logging:
https://www.kernel.org/doc/Documentation/dynamic-debug-howto.txt

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2016-10-13 23:09:02 +02:00
Ferruh Yigit
05788ff054 kni: prefer ether_addr_copy to memcpy
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2016-10-13 23:08:44 +02:00
Ferruh Yigit
e479813505 kni: prefer min_t to min
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2016-10-13 23:08:40 +02:00
Ferruh Yigit
88b7a2a7bd kni: enclose macros with complex values in parens
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2016-10-13 23:08:14 +02:00
Ferruh Yigit
59b36980e4 kni: do not use assignment in if condition
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2016-10-13 23:08:04 +02:00
Ferruh Yigit
50e25e4049 kni: move trailing statement on next line
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2016-10-13 23:07:16 +02:00
Ferruh Yigit
fa34b39dfd kni: move comparison constants on the right
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2016-10-13 23:06:42 +02:00
Ferruh Yigit
e227435ec0 kni: remove useless return
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2016-10-13 23:06:38 +02:00
Ferruh Yigit
0861751c93 kni: prefer unsigned int to unsigned
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2016-10-13 23:06:30 +02:00
Ferruh Yigit
1b9190aff3 kni: fix spacing and line lenghts
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2016-10-13 23:05:31 +02:00
Ferruh Yigit
9afcc5bc74 kni: make static struct const
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2016-10-13 23:05:28 +02:00
Ferruh Yigit
fbd71b623f kni: uninitialize global variables
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2016-10-13 23:05:20 +02:00
Ferruh Yigit
f60c4df6bb kni: move externs to the header file
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
2016-10-13 22:49:41 +02:00
Vladyslav Buslov
93a298b34e kni: support core id parameter in single threaded mode
Allow binding KNI thread to specific core in single threaded mode
by setting core_id and force_bind config parameters.

Signed-off-by: Vladyslav Buslov <vladyslav.buslov@harmonicinc.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
Tested-by: Ferruh Yigit <ferruh.yigit@intel.com>
2016-10-13 22:24:45 +02:00
Wei Dai
f05b0fbe7d lpm: remove redundant check when adding rule
When a rule with depth > 24 is added into an existing
rule with depth <=24, a new tbl8 is allocated, the existing
rule first fulfill whole new tbl8, so the filed valid of
each entry in this tbl8 is always true and depth of each
entry is always <= 24 before adding the new rule with depth > 24.

Signed-off-by: Wei Dai <wei.dai@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2016-10-13 22:17:00 +02:00
Wei Dai
69ed52dddc lpm: fix freeing unused sub-table on rule delete
When all rules with depth > 24 are deleted in a same sub-table
(tlb8 group) and only a rule with depth <=24 is left in it,
this sub-table (tlb8 group) should be recycled.

Fixes: dc81ebbaca ("lpm: extend IPv4 next hop field")
Fixes: af75078fec ("first public release")

Signed-off-by: Wei Dai <wei.dai@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2016-10-13 22:13:19 +02:00
John Ousterhout
844bd77c03 log: respect logger configured before EAL init
Before this patch, application-specific loggers could not be
installed before rte_eal_init completed (the initialization process
called rte_openlog_stream, overwriting any previously installed
logger). This made it impossible for an application to capture the
initial log messages generated during rte_eal_init. This patch changes
initialization so that information from a previous call to
rte_openlog_stream is not lost. Specifically:
* The default log stream is now maintained separately from an
  application-specific log stream installed with rte_openlog_stream.
* rte_eal_common_log_init has been renamed to eal_log_set_default,
  since this is all it does. It no longer invokes rte_openlog_stream; it
  just updates the default stream. Also, this method now returns void,
  rather than int, since there are no errors.

This patch also removes the "early log" mechanism and cleans up the
log initialization mechanism:
* The default log stream defaults to stderr on all platforms if
  eal_log_set_default hasn't been invoked (Linux used to use stdout
  during the first part of initialization).
* Removed rte_eal_log_early_init; all of the desired functionality can
  be achieved by calling eal_log_set_default.
* Removed lib/librte_eal/bsdapp/eal/eal_log.c: it contained only one
  function, rte_eal_log_init, which is not needed or invoked for BSD.
* Removed declaration for eal_default_log_stream in rte_log.h (it's now
  private to eal_common_log.c).
* Moved call to rte_eal_log_init earlier in rte_eal_init for Linux, so
  that it starts using the preferrred log ASAP.

Signed-off-by: John Ousterhout <ouster@cs.stanford.edu>
2016-10-13 22:13:18 +02:00
Mauricio Vasquez B
29f1cb4b38 doc: fix file argument of debug functions
Previous patch updated the functions without updating all the comments.

Fixes: 591a9d7985 ("add FILE argument to debug functions")

Signed-off-by: Mauricio Vasquez B <mauricio.vasquez@polito.it>
Acked-by: John McNamara <john.mcnamara@intel.com>
2016-10-13 21:25:53 +02:00
Olivier Matz
6ca3a595e0 mbuf: add flag for LRO
When receiving coalesced packets in virtio, the original size of the
segments is provided. This is a useful information because it allows to
resegment with the same size.

Add a RX new flag in mbuf, that can be set when packets are coalesced by
a hardware or virtual driver when the m->tso_segsz field is valid and is
set to the segment size of original packets.

This flag is used in next commits in the virtio pmd.

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
2016-10-13 20:45:54 +02:00
Olivier Matz
5842289a54 mbuf: add new Rx checksum flags
Following discussions in [1] and [2], introduce a new bit to
describe the Rx checksum status in mbuf.

Before this patch, only one flag was available:
  PKT_RX_L4_CKSUM_BAD: L4 cksum of RX pkt. is not OK.

And same for L3:
  PKT_RX_IP_CKSUM_BAD: IP cksum of RX pkt. is not OK.

This had 2 issues:
- it was not possible to differentiate "checksum good" from
  "checksum unknown".
- it was not possible for a virtual driver to say "the checksum
  in packet may be wrong, but data integrity is valid".

This patch tries to solve this issue by having 4 states (2 bits)
for the IP and L4 Rx checksums. New values are:

 - PKT_RX_L4_CKSUM_UNKNOWN: no information about the RX L4 checksum
   -> the application should verify the checksum by sw
 - PKT_RX_L4_CKSUM_BAD: the L4 checksum in the packet is wrong
   -> the application can drop the packet without additional check
 - PKT_RX_L4_CKSUM_GOOD: the L4 checksum in the packet is valid
   -> the application can accept the packet without verifying the
      checksum by sw
 - PKT_RX_L4_CKSUM_NONE: the L4 checksum is not correct in the packet
   data, but the integrity of the L4 data is verified.
   -> the application can process the packet but must not verify the
      checksum by sw. It has to take care to recalculate the cksum
      if the packet is transmitted (either by sw or using tx offload)

  And same for L3 (replace L4 by IP in description above).

This commit tries to be compatible with existing applications that
only check the existing flag (CKSUM_BAD).

[1] http://dpdk.org/ml/archives/dev/2016-May/039920.html
[2] http://dpdk.org/ml/archives/dev/2016-June/040007.html

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
2016-10-13 20:45:33 +02:00