Since commit d5df2ae042 ("net: fix unneeded replacement of TCP
checksum 0"), the functions rte_ipv4_udptcp_cksum() or
rte_ipv6_udptcp_cksum() can return either 0x0000 or 0xffff when used to
verify a packet containing a valid checksum.
This new behavior broke the checksum verification in tap driver for TCP
packets: these packets are marked with PKT_RX_L4_CKSUM_BAD.
Fix this by checking the 2 possible values. A next commit will introduce
a checksum verification helper to simplify this a bit.
Fixes: d5df2ae042 ("net: fix unneeded replacement of TCP checksum 0")
Cc: stable@dpdk.org
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
When packet type is IPV4_EXT, the checksum is always marked as good in
the mbuf offload flags.
Since we know the header lengths, we can easily call
rte_ipv4_udptcp_cksum() in this case too.
Fixes: 8ae3023387 ("net/tap: add Rx/Tx checksum offload support")
Cc: stable@dpdk.org
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Chelsio T6 ASIC doesn't track Rx promisc traffic dropped due to lack
of Rx buffers and hence the imissed counter doesn't increment. Add
support for RAW MAC filter to insert a wildcard matchall rule at
the end of MPS TCAM to make MPS track the promisc traffic. This
rule will only be added/removed when promisc mode is turned on/off
on the interface.
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Do not return "GOOD" flag if the status was bad.
Fixes: 9e6e7f479a ("net/sfc: support Rx checksum offload for EF100")
Cc: stable@dpdk.org
Signed-off-by: Thierry Herbelot <thierry.herbelot@6wind.com>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
ethdev library does the check of dev before calling the link update.
Fixes: acd4818ea2 ("net/pfe: add link status update")
Cc: stable@dpdk.org
Signed-off-by: Thierry Herbelot <thierry.herbelot@6wind.com>
Acked-by: Gagandeep Singh <g.singh@nxp.com>
Use out only after it was checked not to be null.
Fixes: 4d07cbefe3 ("app/testpmd: add commands for conntrack")
Cc: stable@dpdk.org
Signed-off-by: Thierry Herbelot <thierry.herbelot@6wind.com>
Reviewed-by: Bing Zhao <bingz@nvidia.com>
Acked-by: Aman Deep Singh <aman.deep.singh@intel.com>
Kunpeng 930 support Tx push mode which could improve performance.
It works like below:
1. Add PCIe bar45 which support driver direct write the Tx descriptor
or tail reg to it.
2. Support three operations: a) direct write one Tx descriptor, b)
direct write two Tx descriptors, c) direct write tail reg.
3. The original tail reg located at bar23, the above bar45 tail reg
could provide better bandwidth from the hardware perspective.
The hns3 driver only support direct write tail reg (also have the name
of quick doorbell), the detail:
Considering compatibility, firmware will report Tx push capa if the
hardware support it.
Signed-off-by: Chengwen Feng <fengchengwen@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
Delete redundant blank lines to make:
1.Return value judgment follow the function call.
2.No blank lines at the end of a code block defined by braces.
Signed-off-by: Hongbo Zheng <zhenghongbo3@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
The "cfg_max_queues" maintains configured max queue numbers from user,
and is equal to the maximum of "nb_rx_queues" and "nb_tx_queues" in
"dev->data".
From the ethdev layer framework, "nb_rx/tx_queues" in "dev->data" were set
to zero in rte_eth_dev_configure() if ops.dev_configure in PMD fails to be
executed, In addition, if ops.dev_configure in HNS3 PMD failed, the fake
queues are also cleared on a device that does not support independent Rx/Tx
queues.
Therefore, the "cfg_max_queues" should be also set to zero when
dev_configure fails.
Fixes: fa29fe45a7 ("net/hns3: support queue start and stop")
Cc: stable@dpdk.org
Signed-off-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
When the current VLAN stripping is set, the log print always prompts
that the enabling fails, bug if may actually be the disabling failure.
Fixes: 411d23b9ea ("net/hns3: support VLAN")
Cc: stable@dpdk.org
Signed-off-by: Chengchang Tang <tangchengchang@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
When the device supports independent Rx/Tx queues, fake queues do not need
to be created in unequal Rx/Tx queues case. However, dev_configure fails
to be executed on the device supported independent Rx/Tx queues, the
current rollback code logic contains the fake queue. As a result, the fake
queue is created. When dev_configure is successfully called again, these
fake queues still exists and are configured to the hardware.
Fixes: fa29fe45a7 ("net/hns3: support queue start and stop")
Cc: stable@dpdk.org
Signed-off-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
When the primary process executes dev_stop or is being reset, the packet
sending and receiving functions is changed. In this moment, the primary
process requests secondary processes to change their Rx/Tx functions, and
delays a period of time in case of crashes when queues are still in use.
The delay time depends on the number of queues actually used, instead of
the maximum number of queues supported by the device.
Fixes: 23d4b61fee ("net/hns3: support multiple process")
Cc: stable@dpdk.org
Signed-off-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
When the device is very busy, VF reset may have to be
retried many times to succeed, leading to the current
max reset fail retry count not enough.
Modify max reset fail retry count to 30 to enhance
the reliability of reset function.
Fixes: 2790c64647 ("net/hns3: support device reset")
Cc: stable@dpdk.org
Signed-off-by: Hongbo Zheng <zhenghongbo3@huawei.com>
Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
Introduce an internal firmware loading helper to remove code duplication
in our drivers and handle xz compressed firmware by calling libarchive.
This helper tries to look for .xz suffixes so that drivers are not aware
the firmware has been compressed.
libarchive is set as an optional dependency: without libarchive, a
runtime warning is emitted so that users know there is a compressed
firmware.
Windows implementation is left as an empty stub.
Signed-off-by: David Marchand <david.marchand@redhat.com>
Reviewed-by: Igor Russkikh <irusskikh@marvell.com>
Acked-by: Aaron Conole <aconole@redhat.com>
Tested-by: Haiyue Wang <haiyue.wang@intel.com>
Both "normal" and "dcf" inits have their copy of some firmware loading
code.
The DSN query is moved in specific parts for the "normal" and "dcf" init.
A common helper ice_load_pkg is then introduced and takes an adapter
pointer as its main input.
This helper takes care of finding the right firmware file and loading
it.
The adapter active_pkg_type field is set by this helper.
The ice_access macro is removed from the osdep.h header: osdep.h should
only hosts wrappers for base driver code.
Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Haiyue Wang <haiyue.wang@intel.com>
If the library fails to create the needed socket, add an additional
check to report if the error is due to a missing DPDK runtime dir.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
Acked-by: Morten Brørup <mb@smartsharesystems.com>
Acked-by: Ciara Power <ciara.power@intel.com>
When multi-process is not wanted and DPDK is run with the "no-shconf"
flag, the telemetry library still needs a runtime directory to place the
unix socket for telemetry connections. Therefore, rather than not
creating the directory when this flag is set, we can change the code to
attempt the creation anyway, but not error out if it fails. If it
succeeds, then telemetry will be available, but if it fails, the rest of
DPDK will run without telemetry. This ensures that the "in-memory" flag
will allow DPDK to run even if the whole filesystem is read-only, for
example.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: Morten Brørup <mb@smartsharesystems.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
Caught by code review.
Using a random name for memzone allocations can result in init failures
in the unlikely case that a name collision occurs.
Use a simple sequential generator on 64 bits.
Fixes: 3f50f072ff ("i40e: fix memzone freeing")
Fixes: 22b123a36d ("net/avf: initialize PMD")
Fixes: 5f0978e962 ("net/ice/base: add OS specific implementation")
Fixes: 737f30e1c3 ("net/hns3: support command interface with firmware")
Cc: stable@dpdk.org
Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Min Hu (Connor) <humin29@huawei.com>
Acked-by: Haiyue Wang <haiyue.wang@intel.com>
This patch fixed the unmatched integer type issue in the comparison,
which causing compilation failure on RHEL.
drivers/net/ice/ice_dcf_sched.c:353:15: error:
comparison between signed and unsigned integer expressions
if (node_id > tc_nb * hw->num_vfs) {
^
CI reported the failure:
http://mails.dpdk.org/archives/test-report/2021-July/201905.html
Fixes: 3a6bfc37ea ("net/ice: support QoS config VF bandwidth in DCF")
Signed-off-by: Ting Xu <ting.xu@intel.com>
Tested-by: Ali Alnubani <alialnu@nvidia.com>
The current code doesn't use match on invalid outer rule ID
in action rules of non-encap. flows. This is wrong and must
be fixed. Do that and explain correct behaviour in the code.
Fixes: dadff13793 ("net/sfc: support encap flow items in transfer rules")
Cc: stable@dpdk.org
Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
The container in the action configuration is U32,
but the ID is U16, and overflow check is missing.
Fixes: 1fb65e4dae ("net/sfc: support flow action port ID in transfer rules")
Cc: stable@dpdk.org
Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
Take into account VLAN presence fields in items ETH and VLAN.
Provided that the item ETH does not match on the EtherType,
the pattern behaviour will be as follows:
- ETH (mask->has_vlan = 0) | IPv4 = match both tagged and untagged;
- ETH (mask->has_vlan = 1) | IPv4 = match as per spec->has_vlan;
- ETH (mask->has_vlan = 0) | VLAN | IPv4 = match only tagged.
Similar logic applies to double tagging.
Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
Introduce necessary infrastructure for these fields to
be set, validated and compared during class comparison.
Enumeration and mappings envisaged are MCDI-compatible.
Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
Acked-by: Ray Kinsella <mdr@ashroe.eu>
Actions VXLAN_DECAP and VXLAN_ENCAP need to be listed
among actions supported for transfer flows.
Fixes: 6ab6c40d1e ("net/sfc: support action VXLAN decap in transfer rules")
Fixes: 1bbd1ec234 ("net/sfc: support action VXLAN encap in MAE backend")
Cc: stable@dpdk.org
Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton@xilinx.com>
This patch aligns the l3fwd EM code with the changes made to LPM in
commit 74fb854a3d ("examples/l3fwd: remove useless reloads in LPM
main loop").
This change ensures the compiler knows that the lcore config variables
are constant values and the compiler will then optimize the code
accordingly.
Signed-off-by: Conor Walsh <conor.walsh@intel.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
This patch aligns the l3fwd FIB code with the changes made to LPM in
commit 74fb854a3d ("examples/l3fwd: remove useless reloads in LPM
main loop").
This change ensures the compiler knows that the lcore config variables
are constant values and the compiler will then optimize the code
accordingly.
Signed-off-by: Conor Walsh <conor.walsh@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
Add option to configure unique mempool for each ethernet device
port. The new option available with `pipeline_atq` and
`pipeline_queue` tests.
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
In poll mode driver of octeontx2 the RQ is connected to a CQ and it is
responsible for asserting backpressure to the CGX channel.
When event eth Rx adapter is configured, the RQ is connected to a event
queue, to enable backpressure we need to configure AURA assigned to a
given RQ to backpressure CGX channel.
Event device expects unique AURA to be configured per ethernet device.
If multiple RQ from different ethernet devices use the same AURA,
the backpressure will be disabled, application can override this
using devargs:
-a 0002:0e:00.0,force_rx_bp=1
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Shift is used to generate an 8-bit saturate value from the current
aura used count. The shift value should be derived from the log2 of
block count if it is greater than 256 else the shift should be 0.
Fixes: 7bcc47cbe2 ("mempool/octeontx2: add mempool alloc op")
Cc: stable@dpdk.org
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Set the appropriate capability flags for the RX, crypto and timer
eventdev adapters to use.
Signed-off-by: Mattias Rönnblom <mattias.ronnblom@ericsson.com>
Tested-by: Heng Wang <heng.wang@ericsson.com>
clang-10 build issue log:
drivers/event/cnxk/cnxk_tim_worker.h:372:23:
warning: value size does not match register size
specified by the constraint and modifier [-Wasm-operand-widths]
: [rem] "=&r"(rem)
^
cnxk/cnxk_tim_worker.h:365:17: note: use constraint modifier "w"
"ldxr %[rem], [%[crem]] \n"
^~~~~~
%w[rem]
Changed variable type to match register size, which placates clang.
Fixes: 300b796262 ("event/cnxk: add timer arm routine")
Cc: stable@dpdk.org
Signed-off-by: Ruifeng Wang <ruifeng.wang@arm.com>
Acked-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
For "order_launch_lcores" function, wmb after that the main lcore
updates the variable "t->err", which represents the end of the test
signal, is unnecessary. Because after the main lcore updates this
signal variable, it will jump out of the launch function loop, and wait
other lcores stop or return error in the main function(evt_main.c).
During this time, there is no storing operation and thus no need for
wmb.
Signed-off-by: Feifei Wang <feifei.wang2@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
Packet was corrupted when TSO requested without CSUM update.
Enables CSUM automatically if only TSO requested.
Fixes: 2aa8444b00 ("vdpa/mlx5: support stateless offloads")
Cc: stable@dpdk.org
Signed-off-by: Xueming Li <xuemingl@nvidia.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
Inflight metadata are allocated using glibc's calloc.
This patch converts them to rte_zmalloc_socket to take
care of the NUMA affinity.
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
This patch saves the NUMA node the virtqueue is allocated
on at init time, in order to allocate all other data on the
same node.
While most of the data are allocated before numa_realloc()
is called and so the data will be reallocated properly, some
data like the log cache are most likely allocated after.
For the virtio device metadata, we decide to allocate them
on the same node as the VQ 0.
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
This patch improves the numa_realloc() function by making use
of rte_realloc_socket(), which takes care of the memory copy
and freeing of the old data.
Suggested-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
Since the Vhost-user device initialization has been reworked,
enabling the application to start using the device as soon as
the first queue pair is ready, NUMA reallocation no more
happened on queue pairs other than the first one since
numa_realloc() was returning early if the device was running.
This patch fixes this issue by reallocating the device metadata
only if the device is running. For the virtqueues, a vring state
change notification is sent to notify the application of its
disablement. Since the callback is supposed to be blocking, it
is safe to reallocate it afterwards.
Fixes: d0fcc38f5f ("vhost: improve device readiness notifications")
Cc: stable@dpdk.org
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
When the guest allocates virtqueues on a different NUMA node
than the one the Vhost metadata are allocated, both the Vhost
device struct and the virtqueues struct are reallocated.
However, reallocating the log cache on the new NUMA node was
not done. This patch fixes this by reallocating it if it has
been allocated already, which means a live-migration is
on-going.
Fixes: 1818a63147 ("vhost: move dirty logging cache out of virtqueue")
Cc: stable@dpdk.org
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
When the guest allocates virtqueues on a different NUMA node
than the one the Vhost metadata are allocated, both the Vhost
device struct and the virtqueues struct are reallocated.
However, reallocating the guest pages table was missing, which
likely causes at least one cross-NUMA accesses for every burst
of packets.
This patch reallocates this table on the same NUMA node as the
other metadata.
Fixes: e246896178 ("vhost: get guest/host physical address mappings")
Cc: stable@dpdk.org
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
When the guest allocates virtqueues on a different NUMA node
than the one the Vhost metadata are allocated, both the Vhost
device struct and the virtqueues struct are reallocated.
However, reallocating the Vhost memory table was missing, which
likely causes at least one cross-NUMA accesses for every burst
of packets.
This patch reallocates this table on the same NUMA node as the
other metadata.
Fixes: 552e8fd3d2 ("vhost: simplify memory regions handling")
Cc: stable@dpdk.org
Reported-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
This patch adds default RSS support for IPv4 and IPv6 fragment packet.
Signed-off-by: Wenjun Wu <wenjun1.wu@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
The rte_eth_devices array is not in share memory, it should not be
referenced by i40e_adapter which is shared by primary and secondary.
Any process set i40e_adapter->eth_dev will corrupt another process's
context.
The patch removed the field "eth_dev" from i40e_adapter.
Now, when the data paths try to access the rte_eth_dev_data instance,
they should replace adapter->eth_dev->data with adapter->pf.dev_data.
Fixes: 4861cde461 ("i40e: new poll mode driver")
Cc: stable@dpdk.org
Signed-off-by: Dapeng Yu <dapengx.yu@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
For i40e vector Tx path, if tx_offload is set as FAST_FREE_MBUF mode,
no mbuf fast free operations are executed. To fix this, add mbuf fast
free mode for vector Tx path.
Furthermore, for i40e vector Tx path, if implement FAST_FREE_MBUF mode,
it means per-queue all mbufs come from the same mempool and have
refcnt = 1. Thus we can use bulk free of the buffers when mbuf fast free
mode is enabled.
For vector path in arm platform:
In n1sdp, performance is improved by 18.4%;
In thunderx2, performance is improved by 23%.
For vector path in x86 platform:
No performance changes.
Suggested-by: Ruifeng Wang <ruifeng.wang@arm.com>
Signed-off-by: Feifei Wang <feifei.wang2@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
For i40e scalar Tx path, if implement FAST_FREE_MBUF mode, it means
per-queue all mbufs come from the same mempool and have refcnt = 1.
Thus we can use bulk free of the buffers when mbuf fast free mode is
enabled.
Following are the test results with this patch:
MRR L3FWD Test:
two ports & bi-directional flows & one core
RX API: i40e_recv_pkts_bulk_alloc
TX API: i40e_xmit_pkts_simple
ring_descs_size = 1024;
Ring_I40E_TX_MAX_FREE_SZ = 64;
tx_rs_thresh = I40E_DEFAULT_TX_RSBIT_THRESH = 32;
tx_free_thresh = I40E_DEFAULT_TX_FREE_THRESH = 32;
For scalar path in arm platform with default 'tx_rs_thresh':
In n1sdp, performance is improved by 7.9%;
In thunderx2, performance is improved by 7.6%.
For scalar path in x86 platform with default 'tx_rs_thresh':
performance is improved by 4.7%.
Suggested-by: Ruifeng Wang <ruifeng.wang@arm.com>
Signed-off-by: Feifei Wang <feifei.wang2@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
The HW debug mask is always zero, so user can't enable the related debug
function like ICE_DBG_XXX etc, add the devarg 'hw_debug_mask' to set the
debug mask log output at runtime.
Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
Currently, there'll be conflict error when running
the following commands:
1. flow create 0 ingress
pattern eth / ipv4 / udp src is 32 / end
actions queue index 2 / end
2. flow destroy 0 rule 0
3. flow create 0 ingress
pattern eth / ipv4 / udp dst is 32 / end
actions queue index 2 / end
This patch fixes the input set conflict issue.
Fixes: 42044b69c6 ("net/i40e: support input set selection for FDIR")
Fixes: 4a072ad434 ("net/i40e: fix flow director config after flow validate")
Cc: stable@dpdk.org
Signed-off-by: Beilei Xing <beilei.xing@intel.com>
Tested-by: Lingli Chen <linglix.chen@intel.com>
Add check in the Tx packet preparation function, to guarantee that the
packet with specific user priority is distributed to the correct Tx
queue according to the configured Tx queue TC mapping.
Signed-off-by: Ting Xu <ting.xu@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
This patch added the support for VF to config the ETS-based Tx QoS,
including querying current QoS configuration from PF and config queue TC
mapping. PF QoS is configured in advance and the queried info is
provided to the user for future usage. VF queues are mapped to different
TCs in PF through virtchnl.
Signed-off-by: Qiming Yang <qiming.yang@intel.com>
Signed-off-by: Ting Xu <ting.xu@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
