26054 Commits

Author SHA1 Message Date
Joyce Kong
4aae2397ad rcu: use EAL memory barrier API
Use rte_atomic_thread_fence wrapper which has been provided for
__atomic_thread_fence builtins to support optimized code for
__ATOMIC_SEQ_CST memory order on x86 platforms.

Signed-off-by: Joyce Kong <joyce.kong@arm.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>
2021-01-11 15:34:21 +01:00
Ashish Sadanandan
397fb6a8d9 mbuf: add C++ include guard for dynamic fields header
The header was missing the extern "C" directive which causes name
mangling of functions by C++ compilers, leading to linker errors
complaining of undefined references to these functions.

Fixes: 4958ca3a443a ("mbuf: support dynamic fields and flags")
Cc: stable@dpdk.org

Signed-off-by: Ashish Sadanandan <ashish.sadanandan@gmail.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
2021-01-11 15:34:21 +01:00
Yunjian Wang
e3e9c87c0f eal/linux: fix handling of error events from epoll
The "rev->epdata.event" assigned to "events.epdata.event" directly, which
was wrong in case of epoll events. It should be set to the "evs.events".

Fixes: 9efe9c6cdcac ("eal/linux: add epoll wrappers")
Cc: stable@dpdk.org

Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Acked-by: Harman Kalra <hkalra@marvell.com>
2021-01-11 15:34:21 +01:00
Ferruh Yigit
e6b8750165 net/avp: remove always true condition
There is already a break above for the case "count >= 1", so at this
stage 'count' should be always '0'.

Fixes: 1a85922369c4 ("net/avp: add device configuration")
Cc: stable@dpdk.org

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Steven Webster <steven.webster@windriver.com>
2021-01-11 10:45:34 +01:00
Ferruh Yigit
427ec3b728 app/crypto-perf: remove always true condition
This is already 'else' leg of the opposite comparison, simple 'else'
will be logically same.

Fixes: f8be1786b1b8 ("app/crypto-perf: introduce performance test application")
Cc: stable@dpdk.org

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Fan Zhang <roy.fan.zhang@intel.com>
2021-01-11 10:45:34 +01:00
Ferruh Yigit
5d91d6e1c9 net/bnxt: remove redundant return
Removing useless 'return' statement.

Fixes: b2da02480cb7 ("net/bnxt: support EEM system memory")
Cc: stable@dpdk.org

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
2021-01-11 10:45:34 +01:00
Ferruh Yigit
c275321105 net/af_xdp: remove useless assignment
Assignment of function parameter 'umem' removed.

Fixes: f0ce7af0e182 ("net/af_xdp: remove resources when port is closed")
Cc: stable@dpdk.org

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
2021-01-11 10:45:34 +01:00
Ferruh Yigit
b92b0018b1 net/bonding: remove local variable shadowing outer one
'retval' is already defined in the function scope, removing the 'retval'
in the block scope.

Fixes: 112891cd27e5 ("net/bonding: add dedicated HW queues for LACP control")
Cc: stable@dpdk.org

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
Acked-by: Min Hu (Connor) <humin29@huawei.com>
2021-01-11 10:45:34 +01:00
Ferruh Yigit
a18f174707 net/pcap: remove local variable shadowing outer one
'ret' is already defined in the function scope, removing the 'ret' in
the block scope.

Fixes: c9507cd0cada ("net/pcap: support physical interface MAC address")
Cc: stable@dpdk.org

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
2021-01-11 10:45:34 +01:00
Ferruh Yigit
ff1047ba5b app/procinfo: remove useless assignment
'flag' is initialized to '0' but it is overwritten later, moving the
declaration where it is used and initialize with actual value.

Fixes: 0101a0ec6217 ("app/procinfo: add --show-mempool")
Cc: stable@dpdk.org

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
2021-01-11 10:45:34 +01:00
Ferruh Yigit
c923be82e0 app/procinfo: remove useless memset
The intention with the "sizeof(0)" usage is not clear, but the 'stats'
already 'memset' by 'rte_cryptodev_stats_get()' API, removing 'memset'
in application.

Fixes: fe773600fe3e ("app/procinfo: add --show-crypto")
Cc: stable@dpdk.org

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
2021-01-11 10:45:34 +01:00
Ferruh Yigit
59b981c6f6 app/procinfo: fix check on xstats-ids
'parse_xstats_ids()' return 'int'. The return value is assigned to
'nb_xstats_ids' unsigned value, later negative check on this variable is
wrong.

Adding interim 'int' variable for negative check.

Fixes: 7ac16a3660c0 ("app/proc-info: support xstats by ID and by name")
Cc: stable@dpdk.org

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
2021-01-11 10:45:34 +01:00
Ferruh Yigit
f7605e24ba app/procinfo: fix _filters stats reporting
'_filters' is compared twice, second one will be always false, removing
it using the message more relevant to the '_filters'.

Fixes: 2deb6b5246d7 ("app/procinfo: add collectd format and host id")
Cc: stable@dpdk.org

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>
2021-01-11 10:45:31 +01:00
Guy Kaneti
86d8b57e37 regex/octeontx2: fix PCI table overflow
Sentinel was missing from pci_id_ree_table[] array initialization
which caused it to overflow.

Bugzilla ID: 603
Fixes: 4cd1c5fd9 ("regex/octeontx2: introduce REE driver")
Cc: stable@dpdk.org

Signed-off-by: Guy Kaneti <guyk@marvell.com>
2021-01-07 21:25:21 +01:00
Wisam Jaddo
97544f85bd app/flow-perf: simplify objects initialization
Since items are static then the default values will be zero,
thus the memset to zero value is just a redundant code.

Also remove the all not needed variables, that can be replaced
with direct set to the structure itself.

Fixes: bf3688f1e816 ("app/flow-perf: add insertion rate calculation")
Cc: stable@dpdk.org

Signed-off-by: Wisam Jaddo <wisamm@nvidia.com>
Reviewed-by: Alexander Kozyrev <akozyrev@nvidia.com>
Reviewed-by: Suanming Mou <suanmingm@nvidia.com>
2021-01-07 15:52:29 +01:00
Wisam Jaddo
b9a9404fa9 app/flow-perf: change clock measurement
The clock() function is not good practice to use for multiple
cores/threads, since it measures the CPU time used by the process
and not the wall clock time, while when running through multiple
cores/threads simultaneously, we can burn through CPU time much
faster.

As a result this commit will change the way of measurement to use
rd_tsc, and the results will be divided by the processor frequency.

Signed-off-by: Wisam Jaddo <wisamm@nvidia.com>
Reviewed-by: Alexander Kozyrev <akozyrev@nvidia.com>
Reviewed-by: Suanming Mou <suanmingm@nvidia.com>
2021-01-07 15:28:06 +01:00
Wisam Jaddo
070316d01d app/flow-perf: add multi-core rule insertion and deletion
One of the ways to increase the insertion/deletion rate is to use
multi-threaded insertion/deletion. Thus it's needed to have support
for testing and measure those rates using flow-perf application.

Now we generate cores and distribute all flows to those cores,
and start inserting/deleting in parallel.

The app now receive the cores count to use from command line option,
then it distribute the rte_flow rules evenly between the cores, and
start inserting/deleting. Each worker will report it's own results,
and in the end the MAIN worker will report the total results for all
cores.

The total results are calculated using RULES_COUNT divided over
max time used between all cores.

Also this touches the memory area, since inserting using multiple cores
in same time the pre solution for memory is not valid, thus now we save
memory before and after each allocation for all cores. In the end we
pick the min pre memory and the max post memory from all cores.

The difference between those values represent the total memory consumed
by the total rte_flow rules from all cores, and then report the total
size of single rte_flow in byte for each port.

How to use this feature:
--cores=N

Where 1 =< N <= RTE_MAX_LCORE

Signed-off-by: Wisam Jaddo <wisamm@nvidia.com>
Reviewed-by: Alexander Kozyrev <akozyrev@nvidia.com>
Reviewed-by: Suanming Mou <suanmingm@nvidia.com>
2021-01-07 15:14:02 +01:00
Wisam Jaddo
8ccb4e3ef1 app/flow-perf: refactor flows handler
Provide the flows_handler() function the ability to control
flow performance processes. It is made possible after the
introduction of the insert_flows() function.

Also provide to the flows_handler() function the ability to print
the DPDK layer memory consumption of rte_flow rule, regardless
if deletion feature is enabled or not, while in previous
solution it was printing all memory changes after flows_handler().
Thus if deletion is there, it will not provide any memory that
represents the rte_flow rule size.

Also current design is easier to read and understand.

Signed-off-by: Wisam Jaddo <wisamm@nvidia.com>
Reviewed-by: Alexander Kozyrev <akozyrev@nvidia.com>
Reviewed-by: Suanming Mou <suanmingm@nvidia.com>
2021-01-07 15:13:58 +01:00
Olivier Matz
b031e13d7f build: fix plugin load on static build
When dpdk is compiled as static libraries, it is not possible
to load a plugin from an application. We get the following error:

  EAL: librte_pmd_xxxx.so: undefined symbol: per_lcore__rte_errno

This happens because the dpdk symbols are not exported. Add them to the
dynamic symbol table by using '-Wl,--export-dynamic'. This option was
previously present when compiled with Makefiles, it was introduced in
commit f9a08f650211 ("eal: add support for shared object drivers")

Also add it to the pkg-config file.

Fixes: 16ade738fd0d ("app/testpmd: build with meson")
Fixes: 89f0711f9ddf ("examples: build some samples with meson")
Cc: stable@dpdk.org

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Reviewed-by: Bruce Richardson <bruce.richardson@intel.com>
2021-01-05 23:01:36 +01:00
Tal Shnaiderman
ac7c98d04f bus/pci: ignore missing NUMA node on Windows
On older processors, NUMA isn't bound to PCIe locality.
those cases return ERROR_NOT_FOUND in response to the
SetupDiGetDevicePropertyW call with DEVPKEY_Device_Numa_Node
attribute.

This error fails the probe process for the PCIe device.
this commit will ignore such failure and will set the
numa_node to 0.

Fixes: b762221ac24f ("bus/pci: support Windows with bifurcated drivers")
Cc: stable@dpdk.org

Reported-by: Odi Assli <odia@nvidia.com>
Signed-off-by: Tal Shnaiderman <talshn@nvidia.com>
Tested-by: Odi Assli <odia@nvidia.com>
Acked-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Acked-by: Ranjit Menon <ranjit.menon@intel.com>
2021-01-05 23:01:36 +01:00
Pallavi Kadam
aacc29dacd eal/windows: add interrupt functions stub
Add some missing interrupt implementations on Windows.
Also add respective functions to export file.

Signed-off-by: Tal Shnaiderman <talshn@nvidia.com>
Signed-off-by: Pallavi Kadam <pallavi.kadam@intel.com>
Reviewed-by: Ranjit Menon <ranjit.menon@intel.com>
Acked-by: Narcisa Vasile <navasile@linux.microsoft.com>
Acked-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
2021-01-05 22:45:00 +01:00
Dmitry Kozlyuk
6d10ddb408 bus/pci: fix hardware ID limit on Windows
Length of hardware IDs list is limited by REGSTR_VAL_MAX_HCID_LEN [1],
which is currently 1024. With the old limit of 260, obtaining the list
could fail in a rare occasion of a very long result (no examples known).
This also removes a bogus dependency on the maximum path length.

[1]: https://docs.microsoft.com/en-us/windows-hardware/drivers/install/hardware-ids

Fixes: b762221ac24f ("bus/pci: support Windows with bifurcated drivers")
Cc: stable@dpdk.org

Signed-off-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
2021-01-05 13:56:34 +01:00
David Marchand
9d620630ea ci: fix package installation in GitHub Actions
APT cache must be updated to avoid trying to install an unavailable
version of a package.

Fixes: 87009585e293 ("ci: hook to GitHub Actions")

Signed-off-by: David Marchand <david.marchand@redhat.com>
2020-12-19 09:21:25 +01:00
Vladimir Medvedkin
e682b02084 rib: fix insertion in some cases
According to GCC documentation for __builtin_clz:
Returns the number of leading 0-bits in x,
starting at the most significant bit position.
If x is 0, the result is undefined.
__builtin_clz will be called with 0 if the existing
prefix address matches the one we want to insert.

Fixes: 5a5793a5ffa2 ("rib: add RIB library")
Cc: stable@dpdk.org

Reported-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Vladimir Medvedkin <vladimir.medvedkin@intel.com>
2020-12-15 10:08:39 +01:00
David Marchand
443267090e ci: enable v21 ABI checks
v21 ABI will be maintained until v21.11.

Let's use the latest released libabigail 1.8.

In GitHub Actions, libabigail binaries and the ABI reference are stored
in two shared caches as all branches can use the same.

While at it, we can reproduce changes from the commit 0b8086ce3fe7
("devtools: remove useless files from ABI reference").
This will save some space in the CI caches.

Signed-off-by: David Marchand <david.marchand@redhat.com>
Tested-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Aaron Conole <aconole@redhat.com>
2020-12-14 15:34:04 +01:00
David Marchand
87009585e2 ci: hook to GitHub Actions
With the recent changes in terms of free access to the Travis CI, let's
offer an alternative with GitHub Actions.
Running jobs on ARM is not supported unless using external runners, so
this commit only adds builds for x86_64 and cross compiling for i386 and
aarch64.

Differences with the Travis CI integration:
- Error logs are not dumped to the console when something goes wrong.
  Instead, they are gathered in a "catch-all" step and attached as
  artifacts.
- A cache entry is stored once and for all, but if no cache is found you
  can inherit from the default branch cache. The cache is 5GB large, for
  the whole git repository.
- The maximum retention of logs and artifacts is 3 months.
- /home/runner is world writable, so a workaround has been added for
  starting dpdk processes.
- Ilya, working on OVS GHA support, noticed that jobs can run with
  processors that don't have the same capabilities. For DPDK, this
  impacts the ccache content since everything was built with
  -march=native so far, and we will end up with binaries that can't run
  in a later build. The problem has not been seen in Travis CI (?) but
  it is safer to use a fixed "-Dmachine=default" in any case.
- Scheduling jobs is part of the configuration and takes the form of a
  crontab. A build is scheduled every Monday at 0:00 (UTC) to provide a
  default ccache for the week (useful for the ovsrobot).

Signed-off-by: David Marchand <david.marchand@redhat.com>
Tested-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Aaron Conole <aconole@redhat.com>
2020-12-14 15:34:00 +01:00
John McNamara
3745f64b4a license: add licenses for exception cases
The license/exceptions.txt file lists a small number of files
that have licenses that are exceptions to the three main
licenses defined in the Intellectual Property Policy of the
DPDK Charter.

The three exception licenses are MIT, ISC and BSD-2-Clause.
Each of these licenses states that the content of the license
message should be included in the code distribution. This
change adds the text of the MIT, ISC and BSD-2-Clause licenses
as defined on the SPDX website.

Cc: stable@dpdk.org

Signed-off-by: John McNamara <john.mcnamara@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2020-12-11 12:22:19 +01:00
Nick Connolly
ecc69f98c7 build: disable Windows warnings for insecure funtions
Microsoft CRT defines Windows-specific secure alternatives to
standard library functions and triggers warnings when "insecure"
functions are used [1]. However, calling code already has all
necessary checks around those functions, so these warnings are not
useful for DPDK. MinGW provides its own CRT without this issue.

[1]:
https://docs.microsoft.com/en-us/cpp/c-runtime-library/security-features-in-the-crt?view=msvc-160

Disable this by defining -D_CRT_SECURE_NO_WARNINGS.

Signed-off-by: Nick Connolly <nick.connolly@mayadata.io>
Acked-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Acked-by: Pallavi Kadam <pallavi.kadam@intel.com>
2020-12-07 21:34:04 +01:00
Nick Connolly
498ec3c6da eal/windows: fix vfprintf warning with clang
When building with clang (11.0,--buildtype=debug), eal_lcore.c
produces a -Wformat-nonliteral warning from the vfprintf call
in log_early.

Add __rte_format_printf annotation.

Fixes: b8a36b086625 ("eal/windows: improve CPU and NUMA node detection")
Cc: stable@dpdk.org

Suggested-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Signed-off-by: Nick Connolly <nick.connolly@mayadata.io>
Acked-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Acked-by: Pallavi Kadam <pallavi.kadam@intel.com>
2020-12-07 21:24:57 +01:00
Nick Connolly
a7288328a9 eal/windows: fix debug build with MinGW
Compiling with MinGW in --buildtype=debug produces a redefinition
error for strncasecmp.

The root cause is that rte_os.h shouldn't be injecting POSIX definitions
into the environment.  It is the applications responsibility to decide
how to handle missing functionality.

Resolving this properly will require further work, but in the meantime
wrap all such definitions with #ifndef/#endif.  This resolves the specific
issue with strncasecmp and handles similar issues that applications may
encounter.

Fixes: e8428a9d89f1 ("eal/windows: add some basic functions and macros")
Cc: stable@dpdk.org

Reported-by: David Marchand <david.marchand@redhat.com>
Signed-off-by: Nick Connolly <nick.connolly@mayadata.io>
2020-12-07 20:46:33 +01:00
Dmitry Kozlyuk
de785ba056 bus/pci: fix build with MinGW-w64 8
Fix redefinition of GUID, missing from previous versions.

Fixes: b762221ac24f ("bus/pci: support Windows with bifurcated drivers")
Cc: stable@dpdk.org

Signed-off-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Tested-by: Thomas Monjalon <thomas@monjalon.net>
2020-12-07 15:26:26 +01:00
Dmitry Kozlyuk
93bf432dd5 eal/windows: fix build with MinGW-w64 8
MinGW-w64 above 8.0.0 exposes VirtualAlloc2() API in headers, but lacks
it in import libraries. Hence, availability of this API at compile-time
can't be used to choose between locating VirtualAlloc2() manually or
relying on the dynamic linker.

Fix redefinition compile-time errors.
Always link VirtualAlloc2() when using GCC.

Fixes: 2a5d547a4a9b ("eal/windows: implement basic memory management")
Cc: stable@dpdk.org

Reported-by: Thomas Monjalon <thomas@monjalon.net>
Signed-off-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Tested-by: Thomas Monjalon <thomas@monjalon.net>
2020-12-07 14:00:22 +01:00
David Marchand
d3fa7b89f0 version: 21.02-rc0
Start a new release cycle with empty release notes.

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
2020-11-30 10:55:22 +01:00
Thomas Monjalon
b1d36cf828 version: 20.11.0
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
v20.11
2020-11-27 19:48:48 +01:00
Ferruh Yigit
df18819356 doc: announce deprecation of maximum Rx length field
The configuration related to the MTU is complex
and have some design issues.
This area should be redesigned a bit.

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Acked-by: Matan Azrad <matan@nvidia.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
2020-11-27 19:33:52 +01:00
Ferruh Yigit
7f01375166 doc: announce flow API matching structs changes
Proposing to replace protocol header fields in the ``rte_flow_item_*``
structures with the protocol structs.

This is both for documenting the intention and to be sure
``rte_flow_item_*`` always starts with complete protocol header.

Change will be done in two steps, at first step in v21.02 release,
protocol header struct will be added as union, for example:

Current ``struct rte_flow_item_eth``,

struct rte_flow_item_eth {
	struct rte_ether_addr dst;
	struct rte_ether_addr src;
	rte_be16_t type;
	uint32_t has_vlan:1;
	uint32_t reserved:31;
}

will become in v21.02:

__extension__
struct rte_flow_item_eth {
	union {
		struct {
			struct rte_ether_addr dst;
			struct rte_ether_addr src;
			rte_be16_t type;
		};
		struct rte_ether_hdr hdr;
	};
	uint32_t has_vlan:1;
	uint32_t reserved:31;
}

After this point usage should switch to 'hdr' struct.

And in the second step, in the v21.11 LTS release the protocol fields
will be removed, and the struct will become:

struct rte_flow_item_eth {
	struct rte_ether_hdr hdr;
	uint32_t has_vlan:1;
	uint32_t reserved:31;
}

Already many ``rte_flow_item_*`` structures implemented to have protocol
struct, target is convert all to this usage.

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
2020-11-27 19:17:00 +01:00
Andrew Rybchenko
8ca9bf26f5 ethdev: deprecate shared counters using action attribute
A new generic shared actions API may be used to create shared
counter. There is no point to keep duplicate COUNT action specific
capability to create shared counters.

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Acked-by: Ori Kam <orika@nvidia.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2020-11-27 19:16:45 +01:00
Ajit Khaparde
f78c615377 doc: add vector mode limitation in bnxt guide
PMD can support vector mode when jumbo is enabled as long as MTU is not
large enough to require scattered RX (which also depends on the mbuf size).

Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
2020-11-27 18:39:04 +01:00
Anatoly Burakov
8a8979c9c5 doc: add VFIO troubleshooting in Linux guide
There are common problems with VFIO that get asked over and over on the
mailing list. Document common problems with VFIO and how to fix them or
at least figure out what went wrong.

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Kevin Traynor <ktraynor@redhat.com>
2020-11-27 18:33:58 +01:00
Anatoly Burakov
fc08c18338 doc: add VFIO no-IOMMU in Linux guide
Currently, we have no documentation on how to use VFIO in no-IOMMU mode.
Add such documentation.

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2020-11-27 18:33:58 +01:00
Anatoly Burakov
9180da6766 doc: reword VFIO and UIO sections in Linux guide
Make sure that we always prioritize VFIO over UIO. Also, minor wording
corrections and improvements.

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
2020-11-27 18:33:58 +01:00
Anatoly Burakov
57ff39f432 doc: move VFIO driver to be first in Linux guide
Currently, the Linux GSG mentions UIO drivers first. This is not ideal
as for the longest time, the recommended way to use DPDK with hardware
devices has been to use VFIO driver.

This commit simply moves UIO section after VFIO, with minor edits.

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2020-11-27 18:33:58 +01:00
David Marchand
b0a49787b4 usertools: remove dpdk-setup.sh
This old script relied on deprecated stuff, and especially make.
It also applied some scary 666 permissions on files under /dev/vfio.

Its deprecation had been notified in a previous release, remove it.

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2020-11-27 17:25:24 +01:00
Ruifeng Wang
3ca55dac6d net/igc: fix build with gcc optimization level 0
GCC build with '-O0' failed for:
 ../drivers/net/igc/base/igc_api.c
 Assembler messages:
29: Error: selected processor does not support `casp x0,x1,x2,x3,[x4]'
82: Error: selected processor does not support `caspa x0,x1,x2,x3,[x4]'
135: Error: selected processor does not support `caspl x0,x1,x2,x3,[x4]'
188: Error: selected processor does not support `caspal x0,x1,x2,x3,[x4]'

This is due to c_args not been passed to meson.

Fixes: 8cb7c57d9b3c ("net/igc: support device initialization")
Cc: stable@dpdk.org

Reported-by: Feifei Wang <feifei.wang2@arm.com>
Signed-off-by: Ruifeng Wang <ruifeng.wang@arm.com>
Tested-by: Jerin Jacob <jerinj@marvell.com>
Acked-by: Haiyue Wang <haiyue.wang@intel.com>
2020-11-27 17:01:59 +01:00
Ruifeng Wang
d123fd111a eal/arm: fix build with gcc optimization level 0
GCC build with '-O0' on platforms with RTE_ARM_FEATURE_ATOMICS set
failed for:
 ../lib/librte_efd/rte_efd.c
 Assembler messages:
3866: Error: selected processor does not support `crc32cb w0,w0,w1'
3890: Error: selected processor does not support `crc32ch w0,w0,w1'
3914: Error: selected processor does not support `crc32cw w0,w0,w1'
3938: Error: selected processor does not support `crc32cx w0,w0,x1'

This was caused by an architecture specifier added for Clang.
Unlike Clang, GCC considers each inline assembly block to be dependent
and therefore, the architecture specifier impacts assemble of some
blocks require certain extension support.

Removed the architecture for GCC to fix the issue.

Fixes: 8fce34cd0a6a ("eal/arm: fix clang build of native target")
Cc: stable@dpdk.org

Reported-by: Feifei Wang <feifei.wang2@arm.com>
Signed-off-by: Ruifeng Wang <ruifeng.wang@arm.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
2020-11-27 16:51:46 +01:00
Anatoly Burakov
8397cac725 doc: update information on using hugepages
Current information regarding hugepage usage is a little out of date.
Update it to include information on in-memory mode, as well as on
default mountpoints provided by systemd.

Cc: stable@dpdk.org

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2020-11-27 16:25:59 +01:00
Anatoly Burakov
3c3a861ce0 doc: clarify instructions on running as non-root
The current instructions are slightly out of date when it comes to
providing information about setting up the system for using DPDK as
non-root, so update them.

Cc: stable@dpdk.org

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
2020-11-27 16:25:59 +01:00
Ray Kinsella
e25156a871 doc: clarify reference version for ABI checks
Clarify the ABI reference version (DPDK_ABI_REF_VERSION) tag, to use
when testing builds with devtools/test-meson-builds.sh before
submitting patches.

Signed-off-by: Ray Kinsella <mdr@ashroe.eu>
Reviewed-by: David Marchand <david.marchand@redhat.com>
2020-11-27 15:41:32 +01:00
Ferruh Yigit
9f5e6556b9 doc: add sample for ABI checks
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Ray Kinsella <mdr@ashroe.eu>
2020-11-27 15:38:22 +01:00
Stephen Hemminger
95215c7a93 maintainers: update for netvsc
The removed maintainers deal with the Linux side of netvsc and
are not relevant for DPDK.

With Long's help the driver is now stable enough for real usage,
so the experimental mark is removed.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2020-11-27 11:19:42 +01:00