23660 Commits

Author SHA1 Message Date
Yuval Avnery
76e821a303 regex/mlx5: fix overrun on enqueueing
When enqueueing a buffer the PMD check if there is room
in its send queue (SQ).
The current implementation did not take into account that
queue indices are wrapping around, which may result in
consumer index (sq->ci) can have bigger value than than
the producer index (sq->pi).

Fixes: 4d4e245ad637 ("regex/mlx5: support enqueue")

Signed-off-by: Yuval Avnery <yuvalav@mellanox.com>
Acked-by: Ori Kam <orika@mellanox.com>
2020-07-29 16:49:58 +02:00
Long Li
52c9a533b4 bus/vmbus: use SMP memory barrier for signaling read
rte_smp_mb() uses the same locked ADD as the in-kernel vmbus driver,
and it has slightly performance improvement over rte_mb().

Signed-off-by: Long Li <longli@microsoft.com>
2020-07-29 16:17:54 +02:00
David Coyle
25d5c40f25 app/crypto-perf: support security protocol in PMDCC mode
This patch adds support for DOCSIS and PDCP security protocols to the
pmd-cyclecount mode of the crypto performance tool. Adding this support
involves freeing the correct session type (i.e. security or cryptodev
session) when the test ends, depending on the op_type specified.

Signed-off-by: David Coyle <david.coyle@intel.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
2020-07-28 22:09:22 +02:00
David Coyle
f7d2c69653 app/crypto-perf: fix mbuf lengths for DOCSIS
Set the source mbuf data and packet lengths correctly for DOCSIS
performance tests.

Fixes: d4a131a9498d ("test/crypto-perf: support DOCSIS protocol")

Signed-off-by: David Coyle <david.coyle@intel.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
2020-07-28 22:09:22 +02:00
Ruifeng Wang
1ee3c4b462 crypto/armv8: remove redundant assert definition
No need to define assert function in PMD since RTE provides the same.
Remove private definition and use RTE_VERIFY instead.

Suggested-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Ruifeng Wang <ruifeng.wang@arm.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
2020-07-28 22:09:22 +02:00
Ruifeng Wang
28b0514504 crypto/armv8: use dedicated log type
armv8 crypto PMD used CRYPTODEV general log type.
Create a dedicated log type for the PMD to not pollute CRYPTODEV log type.

Typo in crypto dev name macro caused unexpected device name in log.
Fixed the typo to log with correct device name.

Fixes: 169ca3db550c ("crypto/armv8: add PMD optimized for ARMv8 processors")
Cc: stable@dpdk.org

Suggested-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Ruifeng Wang <ruifeng.wang@arm.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
2020-07-28 22:09:22 +02:00
Ruifeng Wang
cc9035ffbb crypto/armv8: remove debug option
Typo in debug log switch macro caused debug log cannot be enabled.
Since no log used in data path, remove the debug option entirely
and have logs always enabled.

Resolved compilation error when debug log is enabled:
rte_armv8_pmd.c: In function ‘process_armv8_chained_op’:
rte_armv8_pmd.c:633:22: error: expected ‘)’ before ‘crypto_func’
  ARMV8_CRYPTO_ASSERT(crypto_func != NULL);
                      ^

Fixes: 169ca3db550c ("crypto/armv8: add PMD optimized for ARMv8 processors")
Cc: stable@dpdk.org

Reported-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Ruifeng Wang <ruifeng.wang@arm.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
2020-07-28 22:09:22 +02:00
Adam Dybkowski
d8492ad59e doc: update QAT PMD release notes
This patch updates 20.08 release notes inside
the part that describe changes in Intel QuickAssist PMD.

Fixes: faa57df0b458 ("crypto/qat: support ChaCha20-Poly1305")
Fixes: 9904ff684981 ("common/qat: improve multi-process handling")

Signed-off-by: Adam Dybkowski <adamx.dybkowski@intel.com>
Acked-by: Fiona Trahe <fiona.trahe@intel.com>
2020-07-28 22:09:22 +02:00
Adam Dybkowski
7b08003b5d common/qat: support GEN2 device 200xx
This adds pci detection and documentation for Intel GEN2
QuickAssist device 200xx (PF Did 0x18ee, VF Did 0x18ef).

Signed-off-by: Adam Dybkowski <adamx.dybkowski@intel.com>
Acked-by: Fiona Trahe <fiona.trahe@intel.com>
2020-07-28 22:09:22 +02:00
Adam Dybkowski
c800c2e07f common/qat: fix uninitialized variable
This patch fixes the uninitialized variable bug in QAT PMD.

Fixes: 9f27a860dc16 ("crypto/qat: move generic qp function to qp file")
Cc: stable@dpdk.org

Signed-off-by: Adam Dybkowski <adamx.dybkowski@intel.com>
Acked-by: Fiona Trahe <fiona.trahe@intel.com>
2020-07-28 22:09:22 +02:00
Adam Dybkowski
efc52855dc common/qat: remove unused fields
This patch removes unused fields from structs qat_qp and
qat_qp_config, together with their initializations.

Signed-off-by: Adam Dybkowski <adamx.dybkowski@intel.com>
Acked-by: Fiona Trahe <fiona.trahe@intel.com>
2020-07-28 22:09:22 +02:00
Tejasree Kondoj
84d76227c6 crypto/octeontx2: fix structure alignment
The structure cpt_request_info needs only 8 byte alignment.
This patch replaces __rte_cache_aligned of cpt_request_info
with __rte_aligned(8) and removes __rte_aligned(8) in
cpt_meta_info structure.

Fixes: fab634eb87ca ("crypto/octeontx2: support security session data path")

Signed-off-by: Tejasree Kondoj <ktejasree@marvell.com>
Acked-by: Anoob Joseph <anoobj@marvell.com>
2020-07-28 22:09:22 +02:00
David Coyle
012affe138 crypto/qat: fix DOCSIS performance
DOCSIS protocol performance in the downlink direction can be improved
significantly in the QAT SYM PMD, especially for larger packets, by
pre-processing all CRC generations in a batch before building and
enqueuing any requests to the HW. This patch adds this optimization.

Fixes: 6f0ef237404b ("crypto/qat: support DOCSIS protocol")

Signed-off-by: David Coyle <david.coyle@intel.com>
Acked-by: Fiona Trahe <fiona.trahe@intel.com>
2020-07-28 22:09:21 +02:00
David Coyle
b2f58adb16 crypto/aesni-mb: improve security instance setup
This patch makes some improvements to the security instance setup for
the AESNI-MB PMD, as follows:
- fix potential memory leak where the security instance was not freed if
  an error occurred later in the device creation
- tidy-up security instance initialization code by moving it all,
  including enabling the RTE_CRYPTODEV_FF_SECURITY feature, into one
  '#ifdef AESNI_MB_DOCSIS_SEC_ENABLED' block

Fixes: fda5216fba55 ("crypto/aesni_mb: support DOCSIS protocol")

Signed-off-by: David Coyle <david.coyle@intel.com>
Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
2020-07-28 22:09:21 +02:00
David Coyle
8688fcf030 crypto/qat: improve security instance setup
This patch makes some improvements to the security instance setup for
the QAT SYM PMD, as follows:
- fix potential memory leak where the security instance was not freed if
  an error occurred later in the device creation
- tidy-up security instance initialization code by moving it all,
  including enabling the RTE_CRYPTODEV_FF_SECURITY feature, into one
  '#ifdef RTE_LIBRTE_SECURITY' block

Fixes: 6f0ef237404b ("crypto/qat: support DOCSIS protocol")

Signed-off-by: David Coyle <david.coyle@intel.com>
Acked-by: Fiona Trahe <fiona.trahe@intel.com>
2020-07-28 22:09:21 +02:00
Apeksha Gupta
b8d81e9cbf event/dpaa2: add all-types queue capability flag
DPAA2 eventdev device is capable of all type queue feature.
Fix the capability flag to reflect the same.

Fixes: 8f4a294c23 ("event/dpaa2: apply new capability flags")
Cc: stable@dpdk.org

Signed-off-by: Apeksha Gupta <apeksha.gupta@nxp.com>
Acked-by: Nipun Gupta <nipun.gupta@nxp.com>
2020-07-24 07:22:41 +02:00
Apeksha Gupta
179237727e app/eventdev: fix capability check in pipeline ATQ test
Add all type queue capability check before configuring event device
for pipeline atq test.

Fixes: 6bf570a9911 ("app/eventdev: add pipeline atq test")
Cc: stable@dpdk.org

Signed-off-by: Apeksha Gupta <apeksha.gupta@nxp.com>
Acked-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
2020-07-24 07:22:41 +02:00
Yunjian Wang
fea6787426 event/dpaa: remove dead code
Fix logical dead code.

Coverity issue: 323495
Fixes: 77b5311d0ece ("event/dpaa: support select based event")
Cc: stable@dpdk.org

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2020-07-21 19:44:47 +02:00
Parav Pandit
f6d099d7da common/mlx5: remove class check from class drivers
Now that mlx5_pci PMD checks for enabled classes and performs
probe(), remove() of associated classes, individual class driver
does not need to check if other driver is enabled.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>
2020-07-28 19:01:30 +02:00
Parav Pandit
392bf9084d common/mlx5: register class drivers through common layer
Migrate mlx5 net, vdpa and regex PMD to start using mlx5 common class
driver.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>
2020-07-28 19:01:30 +02:00
Parav Pandit
8a41f4decc common/mlx5: introduce layer for multiple class drivers
Add generic mlx5 PCI PMD layer as part of existing common_mlx5
module. This enables multiple classes (net, regex, vdpa) PMDs
to be supported at same time.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>
2020-07-28 19:01:11 +02:00
Parav Pandit
15008f562d common/mlx5: change class values as bits
mlx5 PCI Device supports multiple classes of devices such as net, vdpa,
and/or regex.
To support these multiple classes, change mlx5_class to a
bitmap values so that if users asks to enable multiple of them, all
supported classes can be parsed.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>
2020-07-28 18:52:11 +02:00
Parav Pandit
8208800163 common/mlx5: avoid class constructor priority
mlx5_common is shared library between mlx5 net, VDPA and regex PMD.
It is better to use common initialization helper instead of using
RTE_PRIORITY_CLASS priority.

Suggested-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
2020-07-28 18:52:11 +02:00
Parav Pandit
1db6ebd4ef regex/mlx5: fix crash on initialization failure
When fail to initialize the device, avoid segmentation fault while
accessing uninitialized priv.

Fixes: cfc672a90b74 ("regex/mlx5: support probing")

Signed-off-by: Parav Pandit <parav@mellanox.com>
2020-07-28 18:52:11 +02:00
Parav Pandit
4c093ffa5b common/mlx5: fix void parameters in glue wrappers
Following two errors are reported when compiled with
gcc (GCC) 8.3.1 20191121 (Red Hat 8.3.1-5).

drivers/common/mlx5/linux/mlx5_glue.h:188:2:
error: function declaration isn't a prototype [-Werror=strict-prototypes]

drivers/common/mlx5/linux/mlx5_glue.h:188:2:
error: function declaration isn't a prototype [-Werror=strict-prototypes]

Fix them by adding void data type in empty argument list.

Fixes: 34fa7c0268e7 ("net/mlx5: add drop action to Direct Verbs E-Switch")
Fixes: 400d985eb586 ("net/mlx5: add VLAN push/pop DR commands to glue")
Cc: stable@dpdk.org

Signed-off-by: Parav Pandit <parav@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>
2020-07-28 18:52:02 +02:00
Thomas Monjalon
9e72b04539 drivers: relax dependency order
Drivers dependencies are evaluated in the order defined per their parent
directory (also called class). This strict ordering prevents from
having pairs of drivers from two classes with different dependency
ordering. For example, if the mlx5 common code depends on the pci bus
driver, while the dpaax common code is itself a dependency of the dpaa
bus driver.  Having a strict ordering between directories bus and common
is too restrictive, as processing either common drivers or bus drivers
first leads us to missing dependencies in this scenario.

This patch makes it possible to have a more fine-grain directory list,
adding a specific driver sub-directory in the top-level drivers
subdirectory list. In this case, the isolated driver must also be removed
from its class list, and the per-class variables must be duplicated in
the isolated driver, because the call "subdir(class)" is skipped in the
isolated driver case.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
2020-07-28 18:28:47 +02:00
Thomas Monjalon
6d5a19d6a2 drivers: fix indent of directory list
Define each sub-directory on its own line ended with a comma,
and use a simple indent.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
2020-07-28 18:27:51 +02:00
Parav Pandit
21587b4921 eal: introduce macro for bit definition
There are several drivers which duplicate bit generation macro.
Introduce a generic bit macros so that such drivers avoid redefining
same in multiple drivers.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Acked-by: Matan Azrad <matan@mellanox.com>
Acked-by: Morten Brørup <mb@smartsharesystems.com>
2020-07-28 18:27:46 +02:00
Ruifeng Wang
ec0b862d5e test/cycles: restore default delay callback
test_delay_us_sleep registers sleep based delay for testing.
This changes the default delay function of testing environment.
It is not expected.

Restore default delay function after the test to fix the issue.

Fixes: a51639cc720a ("eal: add nanosleep based delay function")
Cc: stable@dpdk.org

Signed-off-by: Ruifeng Wang <ruifeng.wang@arm.com>
Reviewed-by: Gavin Hu <gavin.hu@arm.com>
2020-07-27 16:42:19 +02:00
Yunjian Wang
a5f803c804 hash: fix out-of-memory handling in hash creation
The function rte_zmalloc_socket() could return NULL, the return
value need to be checked.

Fixes: 5915699153d7 ("hash: fix scaling by reducing contention")
Cc: stable@dpdk.org

Reported-by: Bin Huang <brian.huangbin@huawei.com>
Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Acked-by: Yipeng Wang <yipeng1.wang@intel.com>
2020-07-27 12:53:40 +02:00
Thomas Monjalon
3126c6e041 version: 20.08-rc2
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
v20.08-rc2
2020-07-22 02:45:20 +02:00
Muhammad Bilal
71ee0b9028 bus/vdev: fix a typo in doxygen comment
While uninitalizing the driver, the comment was mentioning
initialized instead of uninitalized in description of parameter.

Fixes: 0fe11ec592b2 ("eal: add vdev init and uninit")
Cc: stable@dpdk.org

Signed-off-by: Muhammad Bilal <m.bilal@emumba.com>
2020-07-22 02:21:11 +02:00
Sarosh Arif
d9f94a9295 doc: fix typo in bbdev test guide
fixed typing error in doc/guides/tools/testbbdev.rst

Fixes: f714a18885a6 ("app/testbbdev: add test application for bbdev")
Cc: stable@dpdk.org

Signed-off-by: Sarosh Arif <sarosh.arif@emumba.com>
Acked-by: Nicolas Chautru <nicolas.chautru@intel.com>
2020-07-22 02:09:00 +02:00
Honnappa Nagarahalli
5b2b0bd084 doc: fix some typos in Linux guide
The display was not proper due to the missing space. Changed
arm64 to aarch64.

Fixes: 2eb7c526b929 ("doc: clarify IOMMU disabling for uio_pci_generic")
Cc: stable@dpdk.org

Signed-off-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
2020-07-22 02:08:17 +02:00
Anatoly Burakov
eb8d9bbf9d examples/l3fwd-power: fix updating lcore parameters
When perf-config option is specified, we are calling into the power
library even though it may not necessarily be enabled. It is
questionable whether perf-config option is even applicable to non-power
library modes, but for now, fix it just by avoiding calling into the
power library if it wasn't initialized, and assume that every lcore is
high performance core.

Fixes: e0194feb322c ("examples/l3fwd-power: add interrupt-only mode")

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: David Hunt <david.hunt@intel.com>
2020-07-22 01:44:37 +02:00
Anatoly Burakov
8b7b02f945 power: fix environment detection
Anything coming from sysfs has a newline at the end. Cut it off before
comparing the strings.

Fixes: 20ab67608a39 ("power: add environment capability probing")

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: David Hunt <david.hunt@intel.com>
Tested-by: Lihong Ma <lihongx.ma@intel.com>
Reviewed-by: Bruce Richardson <bruce.richardson@intel.com>
2020-07-22 01:35:39 +02:00
Zhike Wang
9dbe628a7b mempool: fix allocation in memzone during retry
If allocation is successful on the first attempt, typically
there is no problem since we allocated everything required and
we'll terminate the loop (if memory chunk is really sufficient
to populate required number of mempool elements).

If the first attempt fails, we try to allocate half
of mem_size and it succeed, we'll have one more iteration of
the for-loop to allocate memory for remaining elements and
should not try the next time with quarter of the mem_size.

It is wrong that max_alloc_size is divided by 2 in the
case of successful allocation as well, or invalid memory
can be allocated, and leads to population failure, then errno
other than ENOMEM may be returned.

Fixes: 3a3d0c75b43e ("mempool: fix slow allocation of large pools")
Cc: stable@dpdk.org

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Signed-off-by: Zhike Wang <wangzhike@jd.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
2020-07-22 01:27:10 +02:00
Nithin Dabilpuram
5b2655a693 node: add packet classifier
This node classifies pkts based on packet type and
sends them to appropriate next node. This is node
helps in distribution of packets from ethdev_rx node
to different next node with a constant overhead for
all packet types.

Currently all except non fragmented IPV4 packets are marked
to be sent to "pkt_drop" node.
Performance difference on ARM64 Octeontx2 is -4.9% due to
addition of new node in the path.

Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
2020-07-22 01:18:59 +02:00
Tianfei Zhang
cbcf2263fb raw/ifpga/base: fix NIOS SPI init
Add fecmode setting on NIOS SPI primary initialization.
this SPI is shared by NIOS core inside FPGA, NIOS will
use this SPI primary to do some one-time initialization
after power up, and then release the control to DPDK.

Fix the timeout initialization for polling the
NIOS_INIT_DONE.

Fixes: bc44402f ("raw/ifpga/base: configure FEC mode")
Cc: stable@dpdk.org

Signed-off-by: Tianfei Zhang <tianfei.zhang@intel.com>
Acked-by: Rosen Xu <rosen.xu@intel.com>
2020-07-22 00:42:11 +02:00
Tianfei Zhang
6f583cd8b0 raw/ifpga/base: fix SPI transaction
0x4a means idle status on physical layer. when encounter
0x4a on raw data, it need insert a ESCAPE character for
indication.

Fixes: 96ebfcf8 ("raw/ifpga/base: add SPI and MAX10 device driver")
Cc: stable@dpdk.org

Signed-off-by: Tianfei Zhang <tianfei.zhang@intel.com>
Acked-by: Rosen Xu <rosen.xu@intel.com>
2020-07-22 00:42:11 +02:00
Matan Azrad
604052ae53 net/vhost: support queue update
The commit below changed the readiness condition of vhost device to fix
multi-queues issues showed with QEMU versions.

Now, the vhost device is ready when the first queue-pair is ready.
When more queues are being ready, the queue state callback will be
triggered to notify the vhost manager.

In case of Rx interrupt configuration, the vhost driver set the
kickfd queue file descriptor in order to be notified on Rx traffic.

So, when queue becomes ready, the kickfd may be changed and should be
updated in the Rx interrupt structure.

Update kickfd when the queue state callback is invoked.
Also update event notification when it is enabled by the user.

Fixes: d0fcc38f5fa4 ("vhost: improve device readiness notifications")

Suggested-by: Marvin Liu <yong.liu@intel.com>
Signed-off-by: Matan Azrad <matan@mellanox.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2020-07-21 19:03:24 +02:00
Andrew Rybchenko
6fd44a47a7 net/sfc: do not enforce hash offload in RSS multi-queue
Rx RSS hash offload should be controlled by the user and should
not be enforced by RSS multi-queue Rx mode.

Fixes: 8b945a7f7dcb ("drivers/net: update Rx RSS hash offload capabilities")
Cc: stable@dpdk.org

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
2020-07-21 18:13:45 +02:00
Andrew Rybchenko
98e2783af3 net/sfc: avoid unnecessary actions on dummy default MAC set
Just an optimization to avoid extra reconfiguration when it
is not actually required.

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
2020-07-21 18:13:45 +02:00
Andrew Rybchenko
793f6dc325 net/sfc: remove inclusion of unused headers
Defines and functions from rte_mbuf_ptype.h are not used.

Only libefx types and EF10 register definitions are used.
Native datapaths should be independent from main libefx interface.

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
2020-07-21 18:13:45 +02:00
Andrew Rybchenko
268df85bc6 net/sfc/base: improve headers independence
efx_types.h uses defines from efx_annote.h, but does not include the
header. As the result if efx_types.h is included by a driver first,
build fails.

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
2020-07-21 18:13:45 +02:00
Raslan Darawsheh
e4f9eab7d9 net: fix pedantic build
when trying to compile rte_mpls with pedantic enabled,
on old compilers like 4.8 it will complain about bit field definition.

error: type of bit-field 'bs' is a GCC extension [-Werror=pedantic]
error: type of bit-field 'tc' is a GCC extension [-Werror=pedantic]
error: type of bit-field 'tag_lsb' is a GCC extension [-Werror=pedantic]

This fixes the compilation error by adding extension to the header
definition.

Fixes: e480cf487a0d ("net: add MPLS header structure")
Cc: stable@dpdk.org

Signed-off-by: Raslan Darawsheh <rasland@mellanox.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2020-07-21 17:36:54 +02:00
Patrick Fu
a608436b63 vhost: fix double-free with zero-copy
zmbufs should be set to NULL when getting freed to avoid double free on
the same buffer pointer

Fixes: b0a985d1f340 ("vhost: add dequeue zero copy")
Cc: stable@dpdk.org

Signed-off-by: Patrick Fu <patrick.fu@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2020-07-21 16:55:30 +02:00
Patrick Fu
47958f7cbf vhost: fix async completion of multi-seg packets
In async enqueue copy, a packet could be split into multiple copy
segments. When polling the copy completion status, current async data
path assumes the async device callbacks are aware of the packet
boundary and return completed segments only if all segments belonging
to the same packet are done. Such assumption are not generic to common
async devices and may degrade the copy performance if async callbacks
have to implement it in software manner.

This patch adds tracking of the completed copy segments at vhost side.
If async copy device reports partial completion of a packets, only
vhost internal record is updated and vring status keeps unchanged
until remaining segments of the packet are also finished. The async
copy device is no longer necessary to care about the packet boundary.

Fixes: cd6760da1076 ("vhost: introduce async enqueue for split ring")

Signed-off-by: Patrick Fu <patrick.fu@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2020-07-21 16:54:58 +02:00
Patrick Fu
5c7ddd6b14 vhost: fix missing virtqueue status check in async path
Vring should not be touched if vq is disabled. This patch adds the vq
status check in async enqueue polling to avoid accessing to a disabled
queue.

Fixes: cd6760da1076 ("vhost: introduce async enqueue for split ring")

Signed-off-by: Patrick Fu <patrick.fu@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2020-07-21 16:50:29 +02:00
Patrick Fu
6a82bceb56 vhost: fix missing device pointer validity check
This patch adds the check of dev pointer in vhost async enqueue
completion poll. If a NULL dev pointer detected, the poll function
returns immediately.

Coverity issue: 360839
Fixes: cd6760da1076 ("vhost: introduce async enqueue for split ring")

Signed-off-by: Patrick Fu <patrick.fu@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2020-07-21 16:50:29 +02:00