50 Commits

Author SHA1 Message Date
Hemant Agrawal
829d5116f9 bus/fslmc: fix ppc build
fslmc_vfio.c:387:36: note: format string is defined here
DPAA2_BUS_DEBUG("VFIO dmamap 0x%llx:0x%llx, size 0x%llx\n",

format ‘%llx’ expects argument of type ‘long long unsigned int’
argument 6 has type ‘__u64 {aka long unsigned int}’

Fixes: 2b5fa25708cf ("mempool/dpaa2: map external memory with VFIO")

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2019-07-22 16:12:20 +02:00
Sachin Saxena
2b5fa25708 mempool/dpaa2: map external memory with VFIO
This patch help in adding a routine to help memory map
the user provided memory via VFIO.

Signed-off-by: Sachin Saxena <sachin.saxena@nxp.com>
2019-07-15 23:52:04 +02:00
Shreyansh Jain
cb07a0883c bus/fslmc: detect IOMMU mode
This patch adds following:
1. 'g_container' variable name is not right way to represent the
FSLMC container. Renaming it to fslmc_container.
2. dynamic selection of IOMMU mode based on run environment

Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
2019-07-15 23:48:51 +02:00
Anatoly Burakov
76f80881ef mem: add API to lock/unlock memory hotplug
Currently, the memory hotplug is locked automatically by all
memory-related _walk() functions, but sometimes locking the
memory subsystem outside of them is needed. There is no
public API to do that, so it creates a dependency on shared
memory config to be public. Fix this by introducing a new
API to lock/unlock the memory hotplug subsystem.

Create a new common file for all things mem config, and a
new API namespace rte_mcfg_*, and search-and-replace all
usages of the locks with the new API.

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: David Marchand <david.marchand@redhat.com>
2019-07-05 22:12:40 +02:00
Shreyansh Jain
e55d0494ab bus/fslmc: support secondary process
Previously FSLMC bus only supported blacklisting of DPNI (eth),
DPSECI (crypto) devices. With this patch, devices like DPIO,
DPMCP, and other DP* can also be blacklisted/whitelisted.

This is a required condition for secondary processes where the
secondary needs to be passed a mutually exclusive list of
resources as compared the primary and all other secondaries.

This patch also moves the DPIO memory from malloc to hugepage so
that in future in case the DPIO list can be shared, it can be
accessed in secondaries.

Once this patch is done, multi-process cases can be executed by
whitelisting/blacklisting devices in each instance.

Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
2019-01-14 17:44:29 +01:00
Nipun Gupta
5c348710c2 bus/fslmc: support scanning DPDMUX object
Add support in bus and vfio to scan dpdmux type of objects

Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
Acked-by: Shreyansh Jain <shreyansh.jain@nxp.com>
2019-01-14 17:44:29 +01:00
Hemant Agrawal
7bf5939604 bus/fslmc: fix to convert error msg to warning
This is just a information. No need to print
it as a error.

Fixes: ce9efbf5bb09 ("bus/fslmc: support dynamic logging")
Cc: stable@dpdk.org

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2019-01-14 17:44:29 +01:00
Anatoly Burakov
f32c7c9de9 malloc: enable event callbacks for external memory
When adding or removing external memory from the memory map, there
may be actions that need to be taken on account of this memory (e.g.
DMA mapping). Add support for triggering callbacks when adding,
removing, attaching or detaching external memory.

Some memory event callback handlers will need additional logic to
handle external memory regions. For example, virtio callback has to
completely ignore externally allocated memory, because there is no
way to find file descriptors backing the memory address in a
generic fashion. All other callbacks have also been adjusted to
handle RTE_BAD_IOVA as IOVA address, as this is one of the expected
use cases for external memory support.

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
2018-10-11 11:56:55 +02:00
Anatoly Burakov
5282bb1c36 mem: allow memseg lists to be marked as external
When we allocate and use DPDK memory, we need to be able to
differentiate between DPDK hugepage segments and segments that
were made part of DPDK but are externally allocated. Add such
a property to memseg lists.

This breaks the ABI, so document the change in release notes.
This also breaks a few internal assumptions about memory
contiguousness, so adjust malloc code in a few places.

All current calls for memseg walk functions were adjusted to
ignore external segments where it made sense.

Mempools is a special case, because we may be asked to allocate
a mempool on a specific socket, and we need to ignore all page
sizes on other heaps or other sockets. Previously, this
assumption of knowing all page sizes was not a problem, but it
will be now, so we have to match socket ID with page size when
calculating minimum page size for a mempool.

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Andrew Rybchenko <arybchenko@solarflare.com>
Acked-by: Yongseok Koh <yskoh@mellanox.com>
2018-10-11 10:24:29 +02:00
Shreyansh Jain
7c5efbb126 bus/fslmc: remove dead code
Coverity issue: 268338
Fixes: 828d51d8fc3e ("bus/fslmc: refactor scan and probe functions")
Cc: stable@dpdk.org

Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2018-05-14 01:01:04 +02:00
Shreyansh Jain
58b7c9ceed bus/fslmc: fix memory leak and cleanup
Coverity issue: 268327
Fixes: 828d51d8fc3e ("bus/fslmc: refactor scan and probe functions")
Cc: stable@dpdk.org

Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2018-05-14 01:01:03 +02:00
Hemant Agrawal
627b677014 bus/fslmc: improve debug logging
Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Acked-by: Shreyansh Jain <shreyansh.jain@nxp.com>
2018-05-14 00:35:53 +02:00
Anatoly Burakov
0256386dc4 mem: add argument to memory event callback
It may be useful to pass arbitrary data to the callback (such
as device pointers), so add this to the mem event callback API.

Suggested-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Tested-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Acked-by: Maxime Coquelin <maxime.coquelin@redhat.com>
2018-05-08 22:28:58 +02:00
Nipun Gupta
51db78c2d5 bus/fslmc: support scanning and probing of QDMA devices
'dpdmai' devices detected on fsl-mc bus are represented by DPAA2 QDMA
devices in DPDK.

Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
Acked-by: Shreyansh Jain <shreyansh.jain@nxp.com>
2018-05-08 12:20:53 +02:00
Stephen Hemminger
733daffa98 bus/fslmc: do not log messages if bus not present
A typical distribution will compile with default config and all
buses enabled. Therefore every driver should be silent and not
log anything for this normal case.

This patch gets rid of these messages when running on basic x86
environment such as bare metal or VM.

fslmc: DPAA2: DPRC not available
fslmc: FSLMC Bus Not Available. Skipping

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2018-04-26 17:47:09 +02:00
Gowrishankar Muthukrishnan
85bf2b6001 bus/fslmc: fix 64-bit format specifiers
Instead of llX, use C99 standard "PRIu64" in format specifier. Former one
breaks compile in ppc64le.

Fixes: c2c167fdb3 ("bus/fslmc: support memory event callbacks for VFIO")

Signed-off-by: Gowrishankar Muthukrishnan <gowrishankar.m@linux.vnet.ibm.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2018-04-15 14:14:21 +02:00
Hemant Agrawal
964b2f3bfb vfio: export some internal functions
This patch moves some of the internal vfio functions from
eal_vfio.h to rte_vfio.h for common uses with "rte_" prefix.

This patch also change the FSLMC bus usages from the internal
VFIO functions to external ones with "rte_" prefix

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
2018-04-13 01:06:57 +02:00
Anatoly Burakov
c2c167fdb3 bus/fslmc: support memory event callbacks for VFIO
VFIO needs to map and unmap segments for DMA whenever they
become available or unavailable, so register a callback for
memory events, and provide map/unmap functions.

Remove unneeded check for number of segments, as in non-legacy
mode this now becomes a valid scenario.

Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Tested-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
Tested-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Tested-by: Gowrishankar Muthukrishnan <gowrishankar.m@linux.vnet.ibm.com>
2018-04-11 21:45:56 +02:00
Anatoly Burakov
a6cdf375bc bus/fslmc: move VFIO DMA map into bus probe
fslmc bus needs to map all allocated memory for VFIO before
device probe. This bus doesn't support hotplug, so at the time
of this call, all possible device that could be present, are
present. This will also be the place where we install VFIO
callback, although this change will come in the next patch.

Since rte_fslmc_vfio_dmamap() is now only called at bus probe,
there is no longer any need to check if DMA mappings have been
already done.

Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Tested-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
Tested-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Tested-by: Gowrishankar Muthukrishnan <gowrishankar.m@linux.vnet.ibm.com>
2018-04-11 21:45:56 +02:00
Anatoly Burakov
66cc45e293 mem: replace memseg with memseg lists
Before, we were aggregating multiple pages into one memseg, so the
number of memsegs was small. Now, each page gets its own memseg,
so the list of memsegs is huge. To accommodate the new memseg list
size and to keep the under-the-hood workings sane, the memseg list
is now not just a single list, but multiple lists. To be precise,
each hugepage size available on the system gets one or more memseg
lists, per socket.

In order to support dynamic memory allocation, we reserve all
memory in advance (unless we're in 32-bit legacy mode, in which
case we do not preallocate memory). As in, we do an anonymous
mmap() of the entire maximum size of memory per hugepage size, per
socket (which is limited to either RTE_MAX_MEMSEG_PER_TYPE pages or
RTE_MAX_MEM_MB_PER_TYPE megabytes worth of memory, whichever is the
smaller one), split over multiple lists (which are limited to
either RTE_MAX_MEMSEG_PER_LIST memsegs or RTE_MAX_MEM_MB_PER_LIST
megabytes per list, whichever is the smaller one). There is also
a global limit of CONFIG_RTE_MAX_MEM_MB megabytes, which is mainly
used for 32-bit targets to limit amounts of preallocated memory,
but can be used to place an upper limit on total amount of VA
memory that can be allocated by DPDK application.

So, for each hugepage size, we get (by default) up to 128G worth
of memory, per socket, split into chunks of up to 32G in size.
The address space is claimed at the start, in eal_common_memory.c.
The actual page allocation code is in eal_memalloc.c (Linux-only),
and largely consists of copied EAL memory init code.

Pages in the list are also indexed by address. That is, in order
to figure out where the page belongs, one can simply look at base
address for a memseg list. Similarly, figuring out IOVA address
of a memzone is a matter of finding the right memseg list, getting
offset and dividing by page size to get the appropriate memseg.

This commit also removes rte_eal_dump_physmem_layout() call,
according to deprecation notice [1], and removes that deprecation
notice as well.

On 32-bit targets due to limited VA space, DPDK will no longer
spread memory to different sockets like before. Instead, it will
(by default) allocate all of the memory on socket where master
lcore is. To override this behavior, --socket-mem must be used.

The rest of the changes are really ripple effects from the memseg
change - heap changes, compile fixes, and rewrites to support
fbarray-backed memseg lists. Due to earlier switch to _walk()
functions, most of the changes are simple fixes, however some
of the _walk() calls were switched to memseg list walk, where
it made sense to do so.

Additionally, we are also switching locks from flock() to fcntl().
Down the line, we will be introducing single-file segments option,
and we cannot use flock() locks to lock parts of the file. Therefore,
we will use fcntl() locks for legacy mem as well, in case someone is
unfortunate enough to accidentally start legacy mem primary process
alongside an already working non-legacy mem-based primary process.

[1] http://dpdk.org/dev/patchwork/patch/34002/

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Tested-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
Tested-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Tested-by: Gowrishankar Muthukrishnan <gowrishankar.m@linux.vnet.ibm.com>
2018-04-11 19:55:39 +02:00
Anatoly Burakov
49a28baed2 bus/fslmc: use memseg walk instead of iteration
Reduce dependency on internal details of EAL memory subsystem, and
simplify code.

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Shreyansh Jain <shreyansh.jain@nxp.com>
Tested-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
Tested-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Tested-by: Gowrishankar Muthukrishnan <gowrishankar.m@linux.vnet.ibm.com>
2018-04-11 19:48:06 +02:00
Anatoly Burakov
634d549c9c bus/fslmc: do not needlessly check for IOVA mode
We already set IOVA addresses of memsegs and memzones to VA
address during initialization, so we don't need to check
whether we're in RTE_IOVA_VA mode anywhere else.

Cc: stable@dpdk.org

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Acked-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
2018-04-11 02:18:03 +02:00
Shreyansh Jain
ce9efbf5bb bus/fslmc: support dynamic logging
Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2018-04-02 23:41:45 +02:00
Hemant Agrawal
5ae1edff68 dpaa2: prepare for 32-bit build
This patch prepare the dpaa2 drivers for compilation on 32 bit machine.

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2018-03-15 17:41:35 +01:00
Ferruh Yigit
ffc905f3b8 ethdev: separate driver APIs
Create a rte_ethdev_driver.h file and move PMD specific APIs here.
Drivers updated to include this new header file.

There is no update in header content and since ethdev.h included by
ethdev_driver.h, nothing changed from driver point of view, only
logically grouping of APIs. From applications point of view they can't
access to driver specific APIs anymore and they shouldn't.

More PMD specific data structures still remain in ethdev.h because of
inline functions in header use them. Those will be handled separately.

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Shreyansh Jain <shreyansh.jain@nxp.com>
Acked-by: Andrew Rybchenko <arybchenko@solarflare.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
2018-01-22 01:26:49 +01:00
Hemant Agrawal
5329b95aae bus/fslmc: clear the vfio group on error
Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2018-01-17 00:44:47 +01:00
Hemant Agrawal
f7768afac1 bus/fslmc: support dynamic IOVA
This patch add support for dynamic iova detection for DPAA2
devices and use of virtual address in such cases.

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2018-01-16 18:47:49 +01:00
Hemant Agrawal
2aab833725 drivers: change the deprecated memseg physaddr to IOVA
DPAA and DPAA2 drivers were using memseg physaddr, which
has been deprecated.

Fixes: 7ba49d39f14c ("mem: rename segment address from physical to IOVA")
Cc: stable@dpdk.org

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Acked-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
2018-01-16 18:47:49 +01:00
Hemant Agrawal
131a75b6e4 drivers: use SPDX tag in NXP dpaa2 files
Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2018-01-04 22:41:39 +01:00
Hemant Agrawal
a2e53a11fe bus/fslmc: enable link status interrupt
Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2017-10-06 03:24:17 +02:00
Hemant Agrawal
01d0df35e7 bus/fslmc: cleanup the dpaa2 interrupt support
Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2017-10-06 03:24:17 +02:00
Shreyansh Jain
16bbc98a3e bus/fslmc: update MC to 10.3.x
Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2017-10-06 01:26:00 +02:00
Shreyansh Jain
828d51d8fc bus/fslmc: refactor scan and probe functions
Scan now searches for devices through sysfs interface and adds them
to a list for later initialization. During probe, each device is
initialized accroding to its property.

Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
Reviewed-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2017-10-06 01:08:58 +02:00
Shreyansh Jain
10f1614f36 drivers: refactor DPAA2 object definition
Initially, DPAA2 objects (except ETH and CRYPTO) were defined from VFIO
layer. This patch moves that into Bus definition.
This patch also realigns the object types with the new device types.

Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
Reviewed-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2017-10-06 01:08:46 +02:00
Shreyansh Jain
bd8e994ef3 bus/fslmc: introduce new device type enumerator
Existing devices and drivers depended on device ID rather than type.
A new enumerator for all DPAA2 devices is introduced in this patch.

At this point, the probe would not be able to link DPAA2 devices
with the driver and I/O would not work. Subsequent patches will
fix this.

Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
Reviewed-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2017-10-06 01:08:23 +02:00
Shreyansh Jain
c1b1b9b902 bus/fslmc: support only single group and container
Currently DPAA2 code doesn't support multiple groups and containers.
Remove such provision in code to simplify code.

Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
Reviewed-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2017-10-06 01:07:48 +02:00
Hemant Agrawal
b4d75d98f5 bus/fslmc: remove workaround for smmu mapping
This is not required any more for A72 based dpaa2 systems.
(A57 based platform is not in production anymore)

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2017-07-19 08:26:08 +03:00
Stephen Hemminger
ba9219fe42 drivers/dpaa2: remove duplicate includes
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2017-07-16 17:30:06 +02:00
Hemant Agrawal
de85636da0 bus/fslmc: set the dpaa2 device name
rte_eth_dev_allocated expect the device name to be filled.

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2017-07-14 15:55:18 +02:00
Shreyansh Jain
fcee050aa1 update NXP copyright headers
NXP Copyright has been wrongly worded with '(c)' at various places.
This patch removes these extra characters. It also removes
"All rights reserved".

Only NXP copyright syntax is changed. Freescale copyright is not
modified.

Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
2017-07-10 12:26:40 +02:00
Nipun Gupta
9acdd08541 bus/fslmc: add interrupt enabling routine
Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
2017-07-07 09:27:39 +02:00
Nipun Gupta
6e1f055d79 bus/fslmc: integrate dpio and dpbp to object framework
This patch removes the existing static call for dpio and dpbp
create and add them to object registration framework.

This patch also changes the vfio mc object processing to use
the framework.

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
2017-07-07 09:25:02 +02:00
Hemant Agrawal
f6af0de58e bus/fslmc: generic framework for mc object creation
There are muliple help mc object, which are not an independent
device, but they are required for dpaa2 based devices.
This framework allows registration and handling of all such
mc devices.

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
2017-07-07 09:24:51 +02:00
Shreyansh Jain
24a170cd30 bus/fslmc: add check for memseg availability
Cleanup the DMA map logic for memsegs. Earlier, in case
DMA mapping reaching end of segment, it reports a spurious error.

Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
2017-07-06 15:00:56 +02:00
Hemant Agrawal
fd0c3f136d bus/fslmc: reduce the debug log messages
Reducing the amount of logging and making the err statement
as a single line statements.

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2017-06-12 10:41:26 +01:00
Hemant Agrawal
352db38111 bus/fslmc: support DMA mapping for ARM SMMU
Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2017-04-19 15:37:37 +02:00
Hemant Agrawal
3981b74fc7 bus/fslmc: support hardware mempool object
Each mempool instance is represented by a DPBP object
from the FSL-MC bus.

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2017-04-19 15:37:37 +02:00
Hemant Agrawal
5374e50f10 bus/fslmc: add dpio portal driver
The portal driver is bound to DPIO objects discovered on the fsl-mc bus and
provides services that:
- allow other drivers, such as the Ethernet driver, to enqueue and dequeue
  frames for their respective objects

A system will typically allocate 1 DPIO object per CPU to allow queuing
operations to happen simultaneously across all CPUs.

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2017-04-19 15:37:37 +02:00
Hemant Agrawal
14ec4ddd2e bus/fslmc: scan for net and crypto device
This patch will add support in fslmc vfio process to
scan and parse the dpni and dpseci object for net and crypto
devices. It will add the scanned devices to the fslmc bus.

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2017-04-19 15:37:37 +02:00
Hemant Agrawal
70e58cf74c bus/fslmc: support VFIO
Add support for using VFIO for dpaa2 based fsl-mc bus.

There are some differences in the way vfio used for fsl-mc bus
from the eal vfio.
 - The scanning of bus for individual objects on the basis of
   the DPRC container.
 - The use and mapping of MC portal for object access

With the evolution of bus model, they can be further aligned with
eal vfio code.

Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
2017-04-19 15:37:37 +02:00