Commit Graph

5548 Commits

Author SHA1 Message Date
Igor Romanov
9970a9ad07 ethdev: make stats and xstats reset callbacks return int
Change return value of the callbacks from void to int. Make
implementations across all drivers return negative errno
values in case of error conditions.

Both callbacks are updated together because a large number of
drivers assign the same function to both callbacks.

Signed-off-by: Igor Romanov <igor.romanov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2019-10-07 15:00:54 +02:00
Igor Romanov
da328f7f11 ethdev: change xstats reset function to return int
Change rte_eth_xstats_reset() return value from void to int and
return negative errno values in case of error conditions.

Signed-off-by: Igor Romanov <igor.romanov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2019-10-07 15:00:54 +02:00
Ivan Ilchenko
b57e35d6e9 kni: check code of promiscuous mode switch
rte_eth_promiscuous_enable()/rte_eth_promiscuous_disable() return
value was changed from void to int, so modify usage of these
functions across lib/librte_kni according to new return type.

Signed-off-by: Ivan Ilchenko <ivan.ilchenko@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
2019-10-07 15:00:54 +02:00
Andrew Rybchenko
3c9b7f5131 ethdev: do nothing if promiscuous mode is applied again
Since driver callbacks return status code now, there is no necessity
to enable or disable promiscuous mode once again if it is already
successfully enabled or disabled.

Configuration restore at startup tries to ensure that configured
promiscuous mode is applied and start will return error if it fails.

Also it avoids theoretical cases when already configured promiscuous
mode is applied once again and fails. In this cases it is unclear
which value should be reported on get (configured or opposite).

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
2019-10-07 15:00:54 +02:00
Andrew Rybchenko
9039c81257 ethdev: change promiscuous callbacks to return status
Enabling/disabling of promiscuous mode is not always successful and
it should be taken into account to be able to handle it properly.

When correct return status is unclear from driver code, -EAGAIN is used.

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Acked-by: Matan Azrad <matan@mellanox.com>
Acked-by: Hyong Youb Kim <hyonkim@cisco.com>
2019-10-07 15:00:54 +02:00
Ivan Ilchenko
69d0e70928 ethdev: change promiscuous mode controllers to return errors
Change rte_eth_promiscuous_enable()/rte_eth_promiscuous_disable()
return value from void to int and return negative errno values
in case of error conditions.
Modify usage of these functions across the ethdev according
to new return type.

Signed-off-by: Ivan Ilchenko <ivan.ilchenko@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
2019-10-07 15:00:54 +02:00
Tiwei Bie
761d57651c vhost: fix slave request fd leak
We need to close the old slave request fd if any first
before taking the new one.

Fixes: 275c3f9447 ("vhost: support slave requests channel")
Cc: stable@dpdk.org

Signed-off-by: Tiwei Bie <tiwei.bie@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2019-10-07 15:00:53 +02:00
Eelco Chaudron
039253166a vhost: add device op when notification to guest is sent
This patch adds an operation callback which gets called every time
the library is waking up the guest trough an eventfd_write() call.

This can be used by 3rd party application, like OVS, to track the
number of times interrupts where generated. This might be of
interest to find out system-call were called in the fast path.

Signed-off-by: Eelco Chaudron <echaudro@redhat.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2019-10-07 15:00:53 +02:00
Ivan Ilchenko
bdad90d12e ethdev: change device info get callback to return int
Change eth_dev_infos_get_t return value from void to int.
Make eth_dev_infos_get_t implementations across all drivers to return
negative errno values if case of error conditions.

Signed-off-by: Ivan Ilchenko <ivan.ilchenko@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2019-10-07 14:45:35 +02:00
Ivan Ilchenko
3e09529f97 pdump: check status of getting ethdev info
rte_eth_dev_info_get() return value was changed from void to int,
so this patch modify rte_eth_dev_info_get() usage across
pdump component according to its new return type.

Signed-off-by: Ivan Ilchenko <ivan.ilchenko@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2019-10-07 14:45:35 +02:00
Ivan Ilchenko
d00a52acf9 latency: check status of getting ethdev info
rte_eth_dev_info_get() return value was changed from void to
int, so this patch modify rte_eth_dev_info_get() usage across
latency component according to its new return type.

Signed-off-by: Ivan Ilchenko <ivan.ilchenko@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2019-10-07 14:45:35 +02:00
Ivan Ilchenko
4f25d7d225 ethdev: add return code to device info get function
Change rte_eth_dev_info_get() return value from void to int and return
negative errno values in case of error conditions.
Modify rte_eth_dev_info_get() usage across the ethdev according
to new return type.

Signed-off-by: Ivan Ilchenko <ivan.ilchenko@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2019-10-07 14:43:50 +02:00
Julien Meunier
1a60db7f35 cryptodev: fix initialization on multi-process
Primary process is responsible to initialize the data struct of each
crypto devices.

Secondary process should not override this data during the
initialization.

Fixes: d11b0f30df ("cryptodev: introduce API and framework for crypto devices")
Cc: stable@dpdk.org

Signed-off-by: Julien Meunier <julien.meunier@nokia.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
2019-10-09 11:50:12 +02:00
Akhil Goyal
badac76cec security: add HFN override option in PDCP
HFN can be given as a per packet value also.
As we do not have IV in case of PDCP, and HFN is
used to generate IV. IV field can be used to get the
per packet HFN while enq/deq
If hfn_ovrd field in pdcp_xform is set,
application is expected to set the per packet HFN
in place of IV. Driver will extract the HFN and perform
operations accordingly.

Signed-off-by: Akhil Goyal <akhil.goyal@nxp.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
2019-10-09 11:50:12 +02:00
Radu Nicolau
382df9dfb6 security: fix doxygen fields
Replace /**< with /** for multiline doxygen comments.

Fixes: c261d1431b ("security: introduce security API and framework")
Cc: stable@dpdk.org

Signed-off-by: Radu Nicolau <radu.nicolau@intel.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
Acked-by: Anoob Joseph <anoobj@marvell.com>
2019-10-09 11:50:12 +02:00
Radu Nicolau
9404e0138d security: add IPsec statistics
Update IPsec statistics struct definition, add per SA
statistics collection enable flag.

Signed-off-by: Radu Nicolau <radu.nicolau@intel.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
Acked-by: Anoob Joseph <anoobj@marvell.com>
2019-10-09 11:50:12 +02:00
David Marchand
8ac3591694 remove useless include of EAL memory config header
Restrict this header inclusion to its real users.

Fixes: 028669bc9f ("eal: hide shared memory config")
Cc: stable@dpdk.org

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
2019-10-09 10:22:24 +02:00
Xiaolong Ye
e8c7df5d7d ethdev: fix typos for ENOTSUP
Fixes: af75078fec ("first public release")
Cc: stable@dpdk.org

Signed-off-by: Xiaolong Ye <xiaolong.ye@intel.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2019-09-05 18:34:45 +02:00
David Marchand
fbb25a3878 ethdev: fix endian annotation for SPI item
Security Parameters Index (SPI) should be set with network endian
values.
While 0xffffffff == htonl(0xffffffff), this missing annotation is
caught by sparse when compiling ovs (dpdk-latest branch).

Fixes: d4b684f719 ("net: add ESP header to generic flow steering")
Cc: stable@dpdk.org

Signed-off-by: David Marchand <david.marchand@redhat.com>
Reviewed-by: Andrew Rybchenko <arybchenko@solarflare.com>
2019-08-27 15:15:00 +02:00
Andrew Rybchenko
3c5f2cdb56 ethdev: fix doc reference to FDIR disabled mode
There is no RTE_FDIR_DISABLE. The right name is RTE_FDIR_MODE_NONE.

Fixes: af75078fec ("first public release")
Cc: stable@dpdk.org

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
2019-08-27 14:25:57 +02:00
Gagandeep Singh
47caefc163 eal: increase maximum different hugepage sizes on Arm
ARM is supporting maximum 4 hugepage sizes (64K, 2M, 32M
and 1G) when granule is 4KB since very long and DPDK
support maximum 3 hugepage sizes.

With all 4 hugepage sizes enabled, applications and some
stacks like VPP which are working over DPDK and using
"in-memory" eal option, or using separate mount points
on ARM based platform, fails at huge page initialization,
reporting error messages from eal:

EAL: FATAL: Cannot get hugepage information.
EAL: Cannot get hugepage information.
EAL: Error - exiting with code: 1

This issue is originated from Linux 5.0
(a21b0b78eaf7 "arm64: hugetlb: Register hugepages during arch init")
where kernel is by default creating directories for each supported
hugepage size in /sys/kernel/mm/hugepages/

On earlier Stable Kernel LTR's, the directories visible in
/sys/kernel/mm/hugepages/ were dependent upon what hugepage
sizes are configured at boot time.

This change increases the maximum supported hugepage sizes
to 4 for ARM based platforms.

Cc: stable@dpdk.org

Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
2019-08-08 17:25:14 +02:00
David Christensen
8e3cb36d5b replace license text with SPDX tag on PPC files
Signed-off-by: David Christensen <drc@linux.vnet.ibm.com>
2019-08-05 17:17:09 +02:00
Maxime Coquelin
bff3b9a80e vhost: replace IOTLB license with SPDX tag
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2019-08-05 16:06:11 +02:00
David Marchand
4d05ac955e ethdev: sort experimental symbols per release
Sort the experimental symbols per release to make it easier/quicker to
check for how long we have them.

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
2019-08-05 12:20:53 +02:00
David Marchand
ba5d78da70 eal: hide internal function
This function has never been used outside of this code unit.
Mark it static and remove it from the eal internal header.

Fixes: 9e29251b2a ("eal: thread affinity API")
Cc: stable@dpdk.org

Signed-off-by: David Marchand <david.marchand@redhat.com>
2019-08-05 11:47:22 +02:00
Thomas Monjalon
5113798fbf eal: warn on legacy memory allocation requirement
When using --no-huge mode, dynamic allocation is not supported.
Because of this limitation, the option --legacy-mem is implied
and -m may be needed to specify the amount of memory to allocate.
Otherwise the default amount MEMSIZE_IF_NO_HUGE_PAGE will be allocated.

The option --socket-mem can also be used with --legacy-mem
when hugepages are supported.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
2019-08-05 11:26:57 +02:00
Aaron Conole
5924381221 acl: fix undefined behavior of bit shifts
Left-shift of an integer constant is represented as 'int' type, but a left
shift of 1 by 31 bits in 'int' is undefined.  Use the U suffix to force
a representation as unsigned.

Caught while running with ubsan under gcc.

Fixes: dc276b5780 ("acl: new library")
Cc: stable@dpdk.org

Signed-off-by: Aaron Conole <aconole@redhat.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
2019-08-02 22:07:07 +02:00
David Marchand
b6be16acfe eal: fix control thread affinity with --lcores
The ctrl thread cpu affinity setting has been broken when using --lcores.

Using -l/-c options makes each lcore associated to a physical cpu in a 1:1
fashion.
On the contrary, when using --lcores, each lcore cpu affinity can be set
to a list of any online cpu on the system.

To handle both cases, each lcore cpu affinity is considered and removed
from the process startup cpu affinity.

Introduced macros to manipulate dpdk cpu sets in both Linux and FreeBSD.

Examples on a 8 cores Linux system:

$ cd /sys/fs/cgroup/cpuset/
$ mkdir dpdk
$ cd dpdk
$ echo 4-7 > cpuset.cpus
$ echo 0 > cpuset.mems
$ echo $$ > tasks

Before the fix:
$ ./master/app/testpmd --master-lcore 0 --lcores '(0,7)@(7,4,5)' \
 --no-huge --no-pci -m 512 -- -i --total-num-mbufs=2048

8427	cpu_list=4-5,7	testpmd
8428	cpu_list=4-6	eal-intr-thread
8429	cpu_list=4-6	rte_mp_handle
8430	cpu_list=4-5,7	lcore-slave-7

$ taskset -c 7 \
 ./master/app/testpmd --master-lcore 0 --lcores '(0,7)@(7,4,5)' \
 --no-huge --no-pci -m 512 -- -i --total-num-mbufs=2048

EAL: Detected 8 lcore(s)
EAL: Detected 1 NUMA nodes
EAL: Failed to create thread for interrupt handling
EAL: FATAL: Cannot init interrupt-handling thread
EAL: Cannot init interrupt-handling thread
PANIC in main():
Cannot init EAL

After the fix:
$ ./master/app/testpmd --master-lcore 0 --lcores '(0,7)@(7,4,5)' \
 --no-huge --no-pci -m 512 -- -i --total-num-mbufs=2048

15214	cpu_list=4-5,7	testpmd
15215	cpu_list=6	eal-intr-thread
15216	cpu_list=6	rte_mp_handle
15217	cpu_list=4-5,7	lcore-slave-7

$ taskset -c 7 \
 ./master/app/testpmd --master-lcore 0 --lcores '(0,7)@(7,4,5)' \
 --no-huge --no-pci -m 512 -- -i --total-num-mbufs=2048

15297	cpu_list=4-5,7	testpmd
15298	cpu_list=4-5,7	eal-intr-thread
15299	cpu_list=4-5,7	rte_mp_handle
15300	cpu_list=4-5,7	lcore-slave-7

Bugzilla ID: 322
Fixes: c3568ea376 ("eal: restrict control threads to startup CPU affinity")
Cc: stable@dpdk.org

Reported-by: Johan Källström <johan.kallstrom@ericsson.com>
Signed-off-by: David Marchand <david.marchand@redhat.com>
2019-07-30 23:11:19 +02:00
Anatoly Burakov
79a0bbe5b6 eal: pick IOVA as PA if IOMMU is not available
When IOMMU is not available, /sys/kernel/iommu_groups will not be
populated. This is happening since at least 3.6 when VFIO support
was added. If the directory is empty, EAL should not pick IOVA as
VA as the default IOVA mode.

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Tested-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Tested-by: Jerin Jacob <jerinj@marvell.com>
Reviewed-by: Jerin Jacob <jerinj@marvell.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
2019-07-30 10:09:13 +02:00
Liang Ma
96c343868d distributor: fix livelock on flush
The Distributor autotest can lock if ran enough times. Worker and
distributor threads get into a livelock situation waiting on each
other.

To repeat:
`while sudo sh -c "echo 'distributor_autotest' |
		./build/app/test/dpdk-test"; do :; done`

The root cause is where we are flushing on exit, and do not wait for
all worker packets to be returned before exiting.
Add a delay on flush so that all worker packets are returned before
completing the flush.

Bugzilla ID: 316
Fixes: 775003ad2f ("distributor: add new burst-capable library")
Cc: stable@dpdk.org

Reported-by: Michael Santana <msantana@redhat.com>
Signed-off-by: David Hunt <david.hunt@intel.com>
Signed-off-by: Liang Ma <liang.j.ma@intel.com>
Tested-by: Michael Santana <msantana@redhat.com>
2019-07-29 23:23:37 +02:00
Hemant Agrawal
86c3cb2245 eal: replace license text with SPDX tag
Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2019-07-29 22:55:14 +02:00
David Marchand
e27071744d service: remove experimental banner in API description
This was missed when promoting this API to stable.

Fixes: 7a0ac7cdb4 ("service: promote experimental functions to stable")

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Gage Eads <gage.eads@intel.com>
2019-07-29 22:38:50 +02:00
David Marchand
e2769068e5 eal: sort experimental symbols per release
Sort the experimental symbols per release to make it easier/quicker to
check for how long we have them.

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Michael Santana <msantana@redhat.com>
2019-07-29 22:26:10 +02:00
Sean Morrissey
9f83b62f55 eal: revert parsing option --telemetry
This reverts commit debacba029.

Reverting this patch as it currently breaks the initialization of
telemetry, more investigation is ongoing to fix the issue for the
printed error message for unrecognized argument.

Fixes: debacba029 ("eal: fix parsing option --telemetry")
Cc: stable@dpdk.org

Signed-off-by: Sean Morrissey <sean.morrissey@intel.com>
2019-07-29 22:24:59 +02:00
Xiaolong Ye
85458c2f3e ethdev: replace license text with SPDX tag
Signed-off-by: Xiaolong Ye <xiaolong.ye@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
2019-07-29 15:07:48 +02:00
Xiaolong Ye
7cf68e4ec4 eal: replace license text with SPDX tag
Signed-off-by: Xiaolong Ye <xiaolong.ye@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2019-07-29 13:31:45 +02:00
Xiaolong Ye
9375067d3f hash: replace license text with SPDX tag
Signed-off-by: Xiaolong Ye <xiaolong.ye@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2019-07-29 13:31:45 +02:00
Xiaolong Ye
84adcc9c39 lpm: replace license text with SPDX tag
Signed-off-by: Xiaolong Ye <xiaolong.ye@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
2019-07-29 13:31:45 +02:00
Fiona Trahe
760d966ab3 compressdev: clarify destination buffer size
Clarify the corner case with incompressible data
whereby the output can actually be greater than the
uncompressed data.

Signed-off-by: Fiona Trahe <fiona.trahe@intel.com>
Acked-by: Adam Dybkowski <adamx.dybkowski@intel.com>
Acked-by: Shally Verma <shallyv@marvell.com>
2019-07-29 10:18:24 +02:00
Ferruh Yigit
08644f1ad2 security: remove duplicated symbols from map file
Fixes: f63ffee26f ("security: restore experimental tag for unimplemented APIs")
Cc: stable@dpdk.org

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
2019-07-26 16:03:21 +02:00
Ferruh Yigit
c417f59a6e cryptodev: fix typo in comment
Remove extra ';' which is probably added unintentionally, reported by
./devtools/check-includes.sh script.

Fixes: 26008aaed1 ("cryptodev: add asymmetric xform and op definitions")
Cc: stable@dpdk.org

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
2019-07-26 15:48:52 +02:00
Anatoly Burakov
78a6d7ed19 vfio: use contiguous mapping for IOVA as VA mode
When using IOVA as VA mode, there is no need to map segments
page by page. This normally isn't a problem, but it becomes one
when attempting to use DPDK in no-huge mode, where VFIO subsystem
simply runs out of space to store mappings.

Fix this for x86 by triggering different callbacks based on whether
IOVA as VA mode is enabled.

Fixes: 73a6390859 ("vfio: allow to map other memory regions")
Cc: stable@dpdk.org

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Tested-by: Andrius Sirvys <andrius.sirvys@intel.com>
2019-07-23 20:47:14 +02:00
Andrew Rybchenko
b671987985 ethdev: avoid getting uninitialized info for bad port
rte_eth_dev_info_get() returns void and caller does know if the function
does its job or not. Changing of the return value to int would be
API/ABI breakage which requires deprecation process and cannot be
backported to stable branches. For now, make sure that device info is
initialized even in the case of invalid port ID.

Fixes: a30268e9a2 ("ethdev: reset whole dev info structure before filling")
Cc: stable@dpdk.org

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
2019-07-23 20:28:17 +02:00
Stephen Hemminger
d036e6a149 net: be more restrictive with ethernet address format
The current ether_unformat_addr code was based off of
BSD ether_aton. That version changed what was allowed
by the cmdline ether address parser.
For example, it allows dropping leading zeros.

Change the code to be more restrictive and only allow the fully
expanded standard formats.

Bugzilla ID: 324
Fixes: 596d31092d ("net: add function to convert string to ethernet address")

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Reviewed-by: Olivier Matz <olivier.matz@6wind.com>
2019-07-23 14:31:35 +02:00
Dilshod Urazov
42caa11b37 net: adjust L2 length on soft VLAN insertion
Layer 2 length must be updated after the prepend to mbuf to keep
the length right to be used by other Tx offloads.

If the packet has tunnel encapsulation, outer_l2_len should be
updated. Otherwise l2_len should be updated.

Fixes: c974021a59 ("ether: add soft vlan encap/decap")
Cc: stable@dpdk.org

Signed-off-by: Dilshod Urazov <dilshod.urazov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
2019-07-23 14:31:35 +02:00
Nithin Dabilpuram
a159730c2f eal: add ack interrupt API
Add new ack interrupt API to avoid using
VFIO_IRQ_SET_ACTION_TRIGGER(rte_intr_enable()) for
acking interrupt purpose for VFIO based interrupt handlers.
This implementation is specific to Linux.

Using rte_intr_enable() for acking interrupt has below issues

 * Time consuming to do for every interrupt received as it will
   free_irq() followed by request_irq() and all other initializations
 * A race condition because of a window between free_irq() and
   request_irq() with packet reception still on and device still
   enabled and would throw warning messages like below.
   [158764.159833] do_IRQ: 9.34 No irq handler for vector

In this patch, rte_intr_ack() is a no-op for VFIO_MSIX/VFIO_MSI interrupts
as they are edge triggered and kernel would not mask the interrupt before
delivering the event to userspace and we don't need to ack.

Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
Signed-off-by: Jerin Jacob <jerinj@marvell.com>
Tested-by: Shahed Shaikh <shshaikh@marvell.com>
Signed-off-by: David Marchand <david.marchand@redhat.com>
2019-07-23 12:00:22 +02:00
Nithin Dabilpuram
33543fb3b6 vfio: revert interrupt eventfd setup at probe
This reverts commit 89aac60e0b.
"vfio: fix interrupts race condition"

The above mentioned commit moves the interrupt's eventfd setup
to probe time but only enables one interrupt for all types of
interrupt handles i.e VFIO_MSI, VFIO_LEGACY, VFIO_MSIX, UIO.
It works fine with default case but breaks below cases specifically
for MSIX based interrupt handles.

* Applications like l3fwd-power that request rxq interrupts
  while ethdev setup.
* Drivers that need > 1 MSIx interrupts to be configured for
  functionality to work.

VFIO PCI for MSIx expects all the possible vectors to be setup up
when using VFIO_IRQ_SET_ACTION_TRIGGER so that they can be
allocated from kernel pci subsystem. Only way to increase the number
of vectors later is first free all by using VFIO_IRQ_SET_DATA_NONE
with action trigger and then enable new vector count.

Above commit changes the behavior of rte_intr_[enable|disable] to
only mask and unmask unlike earlier behavior and thereby
breaking above two scenarios.

Fixes: 89aac60e0b ("vfio: fix interrupts race condition")
Cc: stable@dpdk.org

Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
Signed-off-by: Jerin Jacob <jerinj@marvell.com>
Tested-by: Stephen Hemminger <stephen@networkplumber.org>
Tested-by: Shahed Shaikh <shshaikh@marvell.com>
Tested-by: Lei Yao <lei.a.yao@intel.com>
Acked-by: David Marchand <david.marchand@redhat.com>
2019-07-23 12:00:14 +02:00
Sean Morrissey
debacba029 eal: fix parsing option --telemetry
Added telemetry to EAL long options so that when
--telemetry is passed as an EAL arg that there is
no unrecognized argument error message printed.

Fixes: 8877ac688b ("telemetry: introduce infrastructure")
Cc: stable@dpdk.org

Signed-off-by: Sean Morrissey <sean.morrissey@intel.com>
Tested-by: John OLoughlin <john.oloughlin@intel.com>
Acked-by: Kevin Laatz <kevin.laatz@intel.com>
2019-07-22 17:58:35 +02:00
Jerin Jacob
bbe29a9bd7 eal/linux: select IOVA as VA mode for default case
When bus layer reports the preferred mode as RTE_IOVA_DC then
select the RTE_IOVA_VA mode:

- All drivers work in RTE_IOVA_VA mode, irrespective of physical
address availability.

- By default, a mempool asks for IOVA-contiguous memory using
RTE_MEMZONE_IOVA_CONTIG. This is slow in RTE_IOVA_PA mode and it
may affect the application boot time.

Signed-off-by: Jerin Jacob <jerinj@marvell.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
Signed-off-by: David Marchand <david.marchand@redhat.com>
2019-07-22 17:47:27 +02:00
David Marchand
b76fafb174 eal: fix IOVA mode selection as VA for PCI drivers
The incriminated commit broke the use of RTE_PCI_DRV_IOVA_AS_VA which
was intended to mean "driver only supports VA" but had been understood
as "driver supports both PA and VA" by most net drivers and used to let
dpdk processes to run as non root (which do not have access to physical
addresses on recent kernels).

The check on physical addresses actually closed the gap for those
drivers. We don't need to mark them with RTE_PCI_DRV_IOVA_AS_VA and this
flag can retain its intended meaning.
Document explicitly its meaning.

We can check that a driver requirement wrt to IOVA mode is fulfilled
before trying to probe a device.

Finally, document the heuristic used to select the IOVA mode and hope
that we won't break it again.

Fixes: 703458e19c ("bus/pci: consider only usable devices for IOVA mode")

Signed-off-by: David Marchand <david.marchand@redhat.com>
Reviewed-by: Jerin Jacob <jerinj@marvell.com>
Tested-by: Jerin Jacob <jerinj@marvell.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
2019-07-22 17:45:52 +02:00