10 Commits

Author SHA1 Message Date
Gaetan Rivet
ea7726a6ee net/failsafe: fix build on FreeBSD 10 with GCC 4.8
ctype.h is not compilable in BSD 10 on GCC 4.8 in C11 mode.

  CC failsafe.o
In file included from /usr/include/_ctype.h:94:0,
                 from /usr/include/ctype.h:46,
                 from /root/dpdk.org/build/include/rte_common.h:50,
                 from /root/dpdk.org/build/include/rte_memory.h:57,
                 from /root/dpdk.org/build/include/rte_malloc.h:45,
                 from /root/dpdk.org/drivers/net/failsafe/failsafe.c:35:
/usr/include/runetype.h:92:22: error: expected '=', ',', ';', 'asm' or
'__attribute__' before 'const'
 extern _Thread_local const _RuneLocale *_ThreadRuneLocale;
                      ^
/usr/include/runetype.h: In function '__getCurrentRuneLocale':
/usr/include/runetype.h:96:6: error: '_ThreadRuneLocale' undeclareds
(first use in this function)
  if (_ThreadRuneLocale)
      ^

The fix is to put GCC in gnu99 mode instead.

Fixes: a46f8d584eb8 ("net/failsafe: add fail-safe PMD")

Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
2017-07-20 18:30:20 +03:00
Gaetan Rivet
2cc52cd76d net/failsafe: support flow API isolation mode
Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
2017-07-19 16:25:43 +03:00
Gaetan Rivet
ad7d6a35ca net/failsafe: support link status change event
Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
2017-07-19 16:25:43 +03:00
Gaetan Rivet
598fb8aec6 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>
2017-07-19 16:25:43 +03:00
Gaetan Rivet
72a57bfd9a net/failsafe: add fast burst functions
Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Acked-by: Olga Shern <olgas@mellanox.com>
2017-07-19 16:25:42 +03:00
Gaetan Rivet
bbc6a53dda net/failsafe: support Rx offload capabilities
Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Acked-by: Olga Shern <olgas@mellanox.com>
2017-07-19 16:25:42 +03:00
Gaetan Rivet
b737a1ee57 net/failsafe: support flow API
Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Acked-by: Olga Shern <olgas@mellanox.com>
2017-07-19 16:25:42 +03:00
Gaetan Rivet
a0194d8281 net/failsafe: add flexible device definition
Add the "exec" device type.
The parameters given to this type of device will be executed in a shell.
The output of this command is then used as a definition for a device.

That command can be re-interpreted if the related device is not
plugged-in. It allows for a device definition to react to system
changes (e.g. changing PCI bus for a given device).

Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com>
Acked-by: Olga Shern <olgas@mellanox.com>
2017-07-19 16:25:42 +03:00
Gaetan Rivet
ebea83f899 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>
2017-07-19 16:25:42 +03:00
Gaetan Rivet
a46f8d584e 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>
2017-07-19 16:25:42 +03:00