drivers: remove redundant newline from logs

Fix places where two newline characters may be logged.

Cc: stable@dpdk.org

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Chengwen

drivers: remove redundant newline from logs

Fix places where two newline characters may be logged.

Cc: stable@dpdk.org

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Chengwen Feng <fengchengwen@huawei.com>

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bus: hide bus object

Make rte_bus opaque for non internal users.
This will make extending this object possible without breaking the ABI.

Introduce a new driver header and move rte_bus definition an

bus: hide bus object

Make rte_bus opaque for non internal users.
This will make extending this object possible without breaking the ABI.

Introduce a new driver header and move rte_bus definition and helpers.
Update drivers and library to use the internal header.

Some applications may have been dereferencing rte_bus objects, mark
this object's accessors as stable.

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>

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bus: move IOVA definition from header

iova enum definition does not need to be defined as part of the bus API.
Move it to rte_eal.h.
With this step, rte_eal.h does not depend on rte_bus.h and rte_de

bus: move IOVA definition from header

iova enum definition does not need to be defined as part of the bus API.
Move it to rte_eal.h.
With this step, rte_eal.h does not depend on rte_bus.h and rte_dev.h.
Fix existing code that was relying on these implicit inclusions.

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>

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devargs: unify scratch buffer storage

In current design, legacy parser rte_devargs_parse() saved scratch
buffer to devargs.args while new parser rte_devargs_layers_parse() saved
to devargs.data. Cod

devargs: unify scratch buffer storage

In current design, legacy parser rte_devargs_parse() saved scratch
buffer to devargs.args while new parser rte_devargs_layers_parse() saved
to devargs.data. Code using devargs had to know the difference and
cleaned up memory accordingly - error prone.

This patch unifies scratch buffer to data field, introduces
rte_devargs_reset() function to wrap the memory clean up logic.

Signed-off-by: Xueming Li <xuemingl@nvidia.com>
Acked-by: Ray Kinsella <mdr@ashroe.eu>
Reviewed-by: Gaetan Rivet <grive@u256.net>

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eal: fix positive error codes from probe/remove

According to API, 'rte_dev_probe()' and 'rte_dev_remove()' must
return 0 or negative error code. Bus code returns positive values
if device wasn't rec

eal: fix positive error codes from probe/remove

According to API, 'rte_dev_probe()' and 'rte_dev_remove()' must
return 0 or negative error code. Bus code returns positive values
if device wasn't recognized by any driver, so the result of
'bus->plug/unplug()' must be converted. 'local_dev_probe()' and
'local_dev_remove()' also has their internal API, so the conversion
should be done there.

Positive on remove means that device not found by driver.
Positive on probe means that there are no suitable buses/drivers,
i.e. device is not supported.

Users of these API fixed to provide a good example by respecting
DPDK API. This also will allow to catch such issues in the future.

Fixes: a3ee360f4440 ("eal: add hotplug add/remove device")
Fixes: 244d5130719c ("eal: enable hotplug on multi-process")
Cc: stable@dpdk.org

Signed-off-by: Ilya Maximets <i.maximets@samsung.com>
Reviewed-by: David Marchand <david.marchand@redhat.com>

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replace snprintf with strlcpy

Do a global replace of snprintf(..."%s",...) with strlcpy, adding in the
rte_string_fns.h header if needed. The function changes in this patch were
auto-generated via

replace snprintf with strlcpy

Do a global replace of snprintf(..."%s",...) with strlcpy, adding in the
rte_string_fns.h header if needed. The function changes in this patch were
auto-generated via command:

spatch --sp-file devtools/cocci/strlcpy.cocci --dir . --in-place

and then the files edited using awk to add in the missing header:

gawk -i inplace '/include <rte_/ && ! seen { \
print "#include <rte_string_fns.h>"; seen=1} {print}'

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>

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net/failsafe: replace sub-device pointer with port id

In multiprocess context, the pointer to sub-device is shared between
processes. Previously, it was a pointer to per process eth_dev so
it's need

net/failsafe: replace sub-device pointer with port id

In multiprocess context, the pointer to sub-device is shared between
processes. Previously, it was a pointer to per process eth_dev so
it's needed to replace this dependency.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Signed-off-by: Raslan Darawsheh <rasland@mellanox.com>
Acked-by: Gaetan Rivet <gaetan.rivet@6wind.com>

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net/failsafe: change back-reference from sub-device

In multiprocess context, the sub-device structure is shared
between processes. The reference to the failsafe device was
a per process pointer. It'

net/failsafe: change back-reference from sub-device

In multiprocess context, the sub-device structure is shared
between processes. The reference to the failsafe device was
a per process pointer. It's changed to port id which is the
same for all processes.

Signed-off-by: Raslan Darawsheh <rasland@mellanox.com>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Gaetan Rivet <gaetan.rivet@6wind.com>

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eal: simplify parameters of hotplug functions

All information about a device to probe can be grouped
in a common string, which is what we usually call devargs.
An application should not have to pars

eal: simplify parameters of hotplug functions

All information about a device to probe can be grouped
in a common string, which is what we usually call devargs.
An application should not have to parse this string before
calling the EAL probe function.
And the syntax could evolve to be more complex and support
matching multiple devices in one string.
That's why the bus name and device name should be removed from
rte_eal_hotplug_add().
Instead of changing this function, a simpler one is added
and used in the old one, which may be deprecated later.

When removing a device, we already know its rte_device handle
which can be directly passed as parameter of rte_eal_hotplug_remove().
If the rte_device is not known, it can be retrieved with the devargs,
by iterating in the device list (future RTE_DEV_FOREACH()).
Similarly to the probing case, a new function is added
and used in the old one, which may be deprecated later.
The new function is used in failsafe, because the replacement is easy.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Reviewed-by: Andrew Rybchenko <arybchenko@solarflare.com>
Acked-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>

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devargs: add non-variadic parsing function

rte_devargs_parse becomes non-variadic,
rte_devargs_parsef becomes the variadic version, to be used to compose
device strings.

Signed-off-by: Gaetan Rivet

devargs: add non-variadic parsing function

rte_devargs_parse becomes non-variadic,
rte_devargs_parsef becomes the variadic version, to be used to compose
device strings.

Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Acked-by: Shreyansh Jain <shreyansh.jain@nxp.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>

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net/failsafe: fix sub-device ownership race

There is time between the sub-device port probing by the sub-device PMD
to the sub-device port ownership taking by a fail-safe port.

In this time, the po

net/failsafe: fix sub-device ownership race

There is time between the sub-device port probing by the sub-device PMD
to the sub-device port ownership taking by a fail-safe port.

In this time, the port is available for the application usage. For
example, the port will be exposed to the applications which use
RTE_ETH_FOREACH_DEV iterator.

Thus, ownership unaware applications may manage the port in this time
what may cause a lot of problematic behaviors in the fail-safe
sub-device initialization.

Register to the ethdev NEW event to take the sub-device port ownership
before it becomes exposed to the application.

Fixes: a46f8d584eb8 ("net/failsafe: add fail-safe PMD")
Cc: stable@dpdk.org

Signed-off-by: Matan Azrad <matan@mellanox.com>
Acked-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>

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net/failsafe: fix sub-device visibility

The iterator function rte_eth_find_next_owned_by(), used by the
iterator macro RTE_ETH_FOREACH_DEV_OWNED_BY, are ignoring the devices
which are neither ATTACH

net/failsafe: fix sub-device visibility

The iterator function rte_eth_find_next_owned_by(), used by the
iterator macro RTE_ETH_FOREACH_DEV_OWNED_BY, are ignoring the devices
which are neither ATTACHED nor REMOVED. Thus sub-devices, having
the state DEFERRED, cannot be seen with the ethdev iterator.
The state RTE_ETH_DEV_DEFERRED can be replaced by
RTE_ETH_DEV_ATTACHED + owner.

Fixes: dcd0c9c32b8d ("net/failsafe: use ownership mechanism for slaves")
Cc: stable@dpdk.org

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Matan Azrad <matan@mellanox.com>
Acked-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Reviewed-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>

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devargs: use proper namespace prefix

rte_eal_devargs is useless, rte_devargs is sufficient.

Only experimental functions are changed for now.

Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Ac

devargs: use proper namespace prefix

rte_eal_devargs is useless, rte_devargs is sufficient.

Only experimental functions are changed for now.

Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>

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devargs: make parsing variadic

rte_eal_devargs_parse can be used by EAL subsystems, drivers,
applications alike.

Device parameters may be presented with different structure each time;
as a single d

devargs: make parsing variadic

rte_eal_devargs_parse can be used by EAL subsystems, drivers,
applications alike.

Device parameters may be presented with different structure each time;
as a single declaration string or several strings each describing
different parts of the declaration.

To simplify the use of this parsing facility, its parameters are made
variadic.

Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>

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align SPDX Mellanox copyrights

Aligning Mellanox SPDX copyrights to a single format.
In addition replace to SPDX licence files which were missed.

Signed-off-by: Shahaf Shuler <shahafs@mellanox.com>

align SPDX Mellanox copyrights

Aligning Mellanox SPDX copyrights to a single format.
In addition replace to SPDX licence files which were missed.

Signed-off-by: Shahaf Shuler <shahafs@mellanox.com>
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>

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net/failsafe: fix error string after ownership call

Ownership API returns a negative value, strerror expects a valid errno
value, thus positive.

Coverity issue: 260401
Fixes: dcd0c9c32b8d ("net/fai

net/failsafe: fix error string after ownership call

Ownership API returns a negative value, strerror expects a valid errno
value, thus positive.

Coverity issue: 260401
Fixes: dcd0c9c32b8d ("net/failsafe: use ownership mechanism for slaves")

Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>

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net/failsafe: use SPDX tags in 6WIND copyrighted files

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Thomas Monjalon <thomas@

net/failsafe: use SPDX tags in 6WIND copyrighted files

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>

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net/failsafe: use ownership mechanism for slaves

Fail-safe PMD sub devices management is based on ethdev port mechanism.
So, the sub-devices management structures are exposed to other DPDK
entities

net/failsafe: use ownership mechanism for slaves

Fail-safe PMD sub devices management is based on ethdev port mechanism.
So, the sub-devices management structures are exposed to other DPDK
entities which may use them in parallel to fail-safe PMD.

Use the new port ownership mechanism to avoid multiple managments of
fail-safe PMD sub-devices.

Signed-off-by: Matan Azrad <matan@mellanox.com>
Acked-by: Gaetan Rivet <gaetan.rivet@6wind.com>

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net/failsafe: add probed device capture

Previous fail-safe code didn't support probed sub-devices capture and
failed when it tried to probe them.

Skip fail-safe sub-device probing when it already w

net/failsafe: add probed device capture

Previous fail-safe code didn't support probed sub-devices capture and
failed when it tried to probe them.

Skip fail-safe sub-device probing when it already was probed.

Signed-off-by: Matan Azrad <matan@mellanox.com>
Acked-by: Gaetan Rivet <gaetan.rivet@6wind.com>

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net/failsafe: fix PCI devices init

When trying to attach a port as a sub-device, the ethdev port
was compared with devargs.
In the case of a PCI device, the name in devargs is the PCI address.
And s

net/failsafe: fix PCI devices init

When trying to attach a port as a sub-device, the ethdev port
was compared with devargs.
In the case of a PCI device, the name in devargs is the PCI address.
And since DPDK 17.08, the devargs name of the underlying device was
used to match an ethdev port:
a1e7c17555e8 ("ethdev: use device name from device structure")

But the recent commit 72e3efb149cc has reverted this wrong matching
to use the ethdev port name as identifier of the port.
It impacts functions like rte_eth_dev_allocated() used in failsafe
for matching ports with given devargs.
The fix is to search for matching devargs in underlying device of
all ethdev ports.
If many ports match the same PCI device, only the first one is matched.

This limitation was already present in previous implementation of
rte_eth_dev_allocated(), and must be adressed later with a better
devargs syntax.

Fixes: 72e3efb149cc ("ethdev: revert use port name from device structure")
Cc: stable@dpdk.org

Signed-off-by: Raslan Darawsheh <rasland@mellanox.com>
Acked-by: Gaetan Rivet <gaetan.rivet@6wind.com>

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net/failsafe: fix failsafe bus uninit return value

fs_bus_uninit is always returning 0 no matter what was the status
of each sub device bus_uninit value.

Fixes: a46f8d584eb8 ("net/failsafe: add fai

net/failsafe: fix failsafe bus uninit return value

fs_bus_uninit is always returning 0 no matter what was the status
of each sub device bus_uninit value.

Fixes: a46f8d584eb8 ("net/failsafe: add fail-safe PMD")
Cc: stable@dpdk.org

Signed-off-by: Raslan Darawsheh <rasland@mellanox.com>
Acked-by: Gaetan Rivet <gaetan.rivet@6wind.com>

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net/failsafe: support device removal

Listen to INTR_RMV events issued by slaves.
Add atomic flags on slave queues to detect use of slave bursts function.
If a removal is detected, set the recollecti

net/failsafe: support device removal

Listen to INTR_RMV events issued by slaves.
Add atomic flags on slave queues to detect use of slave bursts function.
If a removal is detected, set the recollection flag on this slave.

During a slave upkeep round, if its recollection flag is set and its
burst functions are not in use by any thread, remove that slave.

Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Acked-by: Olga Shern <olgas@mellanox.com>

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net/failsafe: support flow API

Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Acked-by: Olga Shern <olgas@mellanox.com>

net/failsafe: add plug-in support

Periodically check for the existence of a device.
If a device has not been initialized and exists on the system, then it
is probed and configured.

The configuratio

net/failsafe: add plug-in support

Periodically check for the existence of a device.
If a device has not been initialized and exists on the system, then it
is probed and configured.

The configuration process strives to synchronize the states between the
plugged-in sub-device and the fail-safe device.

Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Acked-by: Olga Shern <olgas@mellanox.com>

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net/failsafe: add fail-safe PMD

Introduce the fail-safe poll mode driver initialization and enable its
build infrastructure.

This PMD allows for applications to benefit from true hot-plugging
suppo

net/failsafe: add fail-safe PMD

Introduce the fail-safe poll mode driver initialization and enable its
build infrastructure.

This PMD allows for applications to benefit from true hot-plugging
support without having to implement it.

It intercepts and manages Ethernet device removal events issued by
slave PMDs and re-initializes them transparently when brought back.
It also allows defining a contingency to the removal of a device, by
designating a fail-over device that will take on transmitting operations
if the preferred device is removed.

Applications only see a fail-safe instance, without caring for
underlying activity ensuring their continued operations.

Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Acked-by: Olga Shern <olgas@mellanox.com>

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