This patch adds APIs to support container create/destroy and device
bind/unbind with a container. It also provides API for IOMMU programing
on a specified container.
A driver could use "rte_vfio_container_create" helper to create a new
container from eal, use "rte_vfio_container_group_bind" to bind a device
to the newly created container. During rte_vfio_setup_device the container
bound with the device will be used for IOMMU setup.
Signed-off-by: Junjie Chen <junjie.j.chen@intel.com>
Signed-off-by: Xiao Wang <xiao.w.wang@intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
The auxiliary vector read is implemented only for Linux.
It could be done with procstat_getauxv() for FreeBSD.
Since the commit below, the auxiliary vector functions
are compiled for every architectures, including x86
which is tested with FreeBSD.
This patch is moving the Linux implementation in Linux directory,
and adding a fake/empty implementation for FreeBSD.
Fixes: 2ed9bf330709 ("eal: abstract away the auxiliary vector")
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Only a cosmetic change: the *_LEN defines are already used
when defining the buffer. Using sizeof() ensures that the length
stays consistent, even if the definition is modified.
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Reviewed-by: Anatoly Burakov <anatoly.burakov@intel.com>
Adjust the init sequence: put mp channel init before bus scan
so that we can init the vdev bus through mp channel in the
secondary process before the bus scan.
Signed-off-by: Jianfeng Tan <jianfeng.tan@intel.com>
Reviewed-by: Qi Zhang <qi.z.zhang@intel.com>
The hugedir returned by get_hugepage_dir is allocated by strdup
but not released. Replace snprintf with a more suitable strlcpy.
Coverity issue: 272585
Fixes: cb97d93e9d3b ("mem: share hugepage info primary and secondary")
Signed-off-by: Yangchao Zhou <zhouyates@gmail.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
Previously, VFIO functions were not compiled in and exported if
VFIO compilation was disabled. Fix this by actually compiling
all of the functions unconditionally, and provide missing
prototypes on Linux.
Fixes: 279b581c897d ("vfio: expose functions")
Fixes: 73a639085938 ("vfio: allow to map other memory regions")
Fixes: 964b2f3bfb07 ("vfio: export some internal functions")
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
This patch aims to add a general device event monitor framework at
EAL device layer, for device hotplug awareness and actions adopted
accordingly. It could also expand for all other types of device event
monitor, but not in this scope at the stage.
To get started, users firstly call below new added APIs to enable/disable
the device event monitor mechanism:
- rte_dev_event_monitor_start
- rte_dev_event_monitor_stop
Then users shell register or unregister callbacks through the new added
APIs. Callbacks can be some device specific, or for all devices.
-rte_dev_event_callback_register
-rte_dev_event_callback_unregister
Use hotplug case for example, when device hotplug insertion or hotplug
removal, we will get notified from kernel, then call user's callbacks
accordingly to handle it, such as detach or attach the device from the
bus, and could benefit further fail-safe or live-migration.
Signed-off-by: Jeff Guo <jia.guo@intel.com>
Reviewed-by: Jianfeng Tan <jianfeng.tan@intel.com>
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>
https://dpdk.org/tracker/show_bug.cgi?id=18
Indicated that several mmap call sites in the [linux|bsd]app eal code
set fd that was not -1 in their calls while using MAP_ANONYMOUS. While
probably not a huge deal, the man page does say the fd should be -1 for
portability, as some implementations don't ignore fd as they should for
MAP_ANONYMOUS.
Suggested-by: Solal Pirelli <solal.pirelli@gmail.com>
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
This enables multiprocess synchronization for memory hotplug
requests at runtime (as opposed to initialization).
Basic workflow is the following. Primary process always does initial
mapping and unmapping, and secondary processes always follow primary
page map. Only one allocation request can be active at any one time.
When primary allocates memory, it ensures that all other processes
have allocated the same set of hugepages successfully, otherwise
any allocations made are being rolled back, and heap is freed back.
Heap is locked throughout the process, and there is also a global
memory hotplug lock, so no race conditions can happen.
When primary frees memory, it frees the heap, deallocates affected
pages, and notifies other processes of deallocations. Since heap is
freed from that memory chunk, the area basically becomes invisible
to other processes even if they happen to fail to unmap that
specific set of pages, so it's completely safe to ignore results of
sync requests.
When secondary allocates memory, it does not do so by itself.
Instead, it sends a request to primary process to try and allocate
pages of specified size and on specified socket, such that a
specified heap allocation request could complete. Primary process
then sends all secondaries (including the requestor) a separate
notification of allocated pages, and expects all secondary
processes to report success before considering pages as "allocated".
Only after primary process ensures that all memory has been
successfully allocated in all secondary process, it will respond
positively to the initial request, and let secondary proceed with
the allocation. Since the heap now has memory that can satisfy
allocation request, and it was locked all this time (so no other
allocations could take place), secondary process will be able to
allocate memory from the heap.
When secondary frees memory, it hides pages to be deallocated from
the heap. Then, it sends a deallocation request to primary process,
so that it deallocates pages itself, and then sends a separate sync
request to all other processes (including the requestor) to unmap
the same pages. This way, even if secondary fails to notify other
processes of this deallocation, that memory will become invisible
to other processes, and will not be allocated from again.
So, to summarize: address space will only become part of the heap
if primary process can ensure that all other processes have
allocated this memory successfully. If anything goes wrong, the
worst thing that could happen is that a page will "leak" and will
not be available to neither DPDK nor the system, as some process
will still hold onto it. It's not an actual leak, as we can account
for the page - it's just that none of the processes will be able
to use this page for anything useful, until it gets allocated from
by the primary.
Due to underlying DPDK IPC implementation being single-threaded,
some asynchronous magic had to be done, as we need to complete
several requests before we can definitively allow secondary process
to use allocated memory (namely, it has to be present in all other
secondary processes before it can be used). Additionally, only
one allocation request is allowed to be submitted at once.
Memory allocation requests are only allowed when there are no
secondary processes currently initializing. To enforce that,
a shared rwlock is used, that is set to read lock on init (so that
several secondaries could initialize concurrently), and write lock
on making allocation requests (so that either secondary init will
have to wait, or allocation request will have to wait until all
processes have initialized).
Any other function that wishes to iterate over memory or prevent
allocations should be using memory hotplug lock.
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>
Since we are going to need to map hugepages in both primary and
secondary processes, we need to know where we should look for
hugetlbfs mountpoints. So, share those with secondary processes,
and map them on init.
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>
In preparation for implementing multiprocess support, we are adding
a version number to memseg lists. We will not need any locks, because
memory hotplug will have a global lock (so any time memory map and
thus version number might change, we will already be holding a lock).
There are two ways of implementing multiprocess support for memory
hotplug: either all information about mapped memory is shared
between processes, and secondary processes simply attempt to
map/unmap memory based on requests from the primary, or secondary
processes store their own maps and only check if they are in sync
with the primary process' maps.
This implementation will opt for the latter option: primary process
shared mappings will be authoritative, and each secondary process
will use its own interal view of mapped memory, and will attempt
to synchronize on these mappings using versioning.
Under this model, only primary process will decide which pages get
mapped, and secondary processes will only copy primary's page
maps and get notified of the changes via IPC mechanism (coming
in later commits).
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>
For now, memory is always contiguous because legacy mem mode is
enabled unconditionally, but this function will be helpful down
the line when we implement support for allocating physically
non-contiguous memory. We can no longer guarantee physically
contiguous memory unless we're in legacy or IOVA_AS_VA mode, but
we can certainly try and see if we succeed.
In addition, this would be useful for e.g. PMD's who may allocate
chunks that are smaller than the pagesize, but they must not cross
the page boundary, in which case we will be able to accommodate
that request. This function will also support non-hugepage memory.
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>
This isn't used anywhere yet, but the support is now there. Also,
adding cleanup to allocation procedures, so that if we fail to
allocate everything we asked for, we can free all of it back.
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>
Nothing uses this code yet. The bulk of it is copied from old
memory allocation code (linuxapp eal_memory.c). We provide an
EAL-internal API to allocate either one page or multiple pages,
guaranteeing that we'll get contiguous VA for all of the pages
that we requested.
Not supported on FreeBSD.
Locking is done via fcntl() because that way, when it comes to
taking out write locks or unlocking on deallocation, we don't
have to keep original fd's around. Plus, using fcntl() gives us
ability to lock parts of a file, which is useful for single-file
segments, which are coming down the line.
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>
It's there, so we might as well use it. Some operations will be
sped up by that.
Since we have to allocate an fbarray for memzones, we have to do
it before we initialize memory subsystem, because that, in
secondary processes, will (later) allocate more fbarrays than the
primary process, which will result in inability to attach to
memzone fbarray if we do it after the fact.
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>
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>
rte_fbarray is a simple indexed array stored in shared memory
via mapping files into memory. Rationale for its existence is the
following: since we are going to map memory page-by-page, there
could be quite a lot of memory segments to keep track of (for
smaller page sizes, page count can easily reach thousands). We
can't really make page lists truly dynamic and infinitely expandable,
because that involves reallocating memory (which is a big no-no in
multiprocess). What we can do instead is have a maximum capacity as
something really, really large, and decide at allocation time how
big the array is going to be. We map the entire file into memory,
which makes it possible to use fbarray as shared memory, provided
the structure itself is allocated in shared memory. Per-fbarray
locking is also used to avoid index data races (but not contents
data races - that is up to user application to synchronize).
In addition, in understanding that we will frequently need to scan
this array for free space and iterating over array linearly can
become slow, rte_fbarray provides facilities to index array's
usage. The following use cases are covered:
- find next free/used slot (useful either for adding new elements
to fbarray, or walking the list)
- find starting index for next N free/used slots (useful for when
we want to allocate chunk of VA-contiguous memory composed of
several pages)
- find how many contiguous free/used slots there are, starting
from specified index (useful for when we want to figure out
how many pages we have until next hole in allocated memory, to
speed up some bulk operations where we would otherwise have to
walk the array and add pages one by one)
This is accomplished by storing a usage mask in-memory, right
after the data section of the array, and using some bit-level
magic to figure out the info we need.
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>
This adds a "--legacy-mem" command-line switch. It will be used to
go back to the old memory behavior, one where we can't dynamically
allocate/free memory (the downside), but one where the user can
get physically contiguous memory, like before (the upside).
For now, nothing but the legacy behavior exists, non-legacy
memory init sequence will be added later. For FreeBSD, non-legacy
memory init will never be enabled, while for Linux, it is
disabled in this patch to avoid breaking bisect, but will be
enabled once non-legacy mode will be fully operational.
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>
Currently it is not possible to use memory that is not owned by DPDK to
perform DMA. This scenarion might be used in vhost applications (like
SPDK) where guest send its own memory table. To fill this gap provide
API to allow registering arbitrary address in VFIO container.
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Signed-off-by: Gowrishankar Muthukrishnan <gowrishankar.m@linux.vnet.ibm.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>
During lcore scan, find all socket ID's and store them, and
provide public API to query valid socket id's. This will break
the ABI, so bump ABI version.
Also, remove deprecation notice corresponding to this change.
Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Gowrishankar Muthukrishnan <gowrishankar.m@linux.vnet.ibm.com>
This patch moves the kernel modules code from EAL to a common place.
- Separate the kernel module code from user space code.
Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Tested-by: Bruce Richardson <bruce.richardson@intel.com>
The kernel module source file directory passed via VPATH was wrong,
which caused the source files to be not found via make. Rather than
explicitly passing VPATH, make use of the fact that the full path
to the source files is passed by meson, so split that into directory
part - to be used as VPATH - and file part - to be used as the source
filename.
Fixes: 610beca42ea4 ("build: remove library special cases")
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
The existing rte_eal_mbuf_default mempool ops can return the compile time
default ops name if the user has not provided command line inputs for
mempool ops name. It will break the logic of best mempool ops as it will
never return platform hw mempool ops.
This patch introduces a new API to just return the user mempool ops only.
Fixes: 8b0f7f434132 ("mbuf: maintain user and compile time mempool ops name")
Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
If '--mbuf-pool-ops' is not passed to EAL as command line argument then
rte_eal_mbuf_default_mempool_ops will return NULL.
Instead check if internal_config.user_mbuf_pool_ops_name is NULL and
return compile time RTE_MBUF_DEFAULT_MEMPOOL_OPS.
Fixes: 8b0f7f43413 ("mbuf: maintain user and compile time mempool ops name")
Signed-off-by: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
The EAL and compat libraries were special-cases in the library build
process, the former because of it's complexity, and the latter because
it only consists of a single header file.
By reworking the EAL meson.build files, we can eliminate the need for it to
be a special case, by having it build up and return the list of sources,
headers, and objects and return those to the higher level build file. This
should also simplify the building of EAL, as we can eliminate a number of
meson.build files that would no longer be needed, and have fewer, but
larger meson.build files (9 now vs 14 previous) - thereby making the logic
easier to follow and items easier to find.
Once done, we can pull eal into the main library loop, with some
modifications to support it. Compat can also be pulled it once we add in a
check to handle the case of an empty sources list.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Luca Boccassi <bluca@debian.org>
Support compiling the FreeBSD kernel modules using meson and ninja.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Tested-by: Harry van Haaren <harry.van.haaren@intel.com>
Normally, each library has it's own version number based on the ABI.
Add an option to have all libs just use the DPDK version number as the
.so version.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: Harry van Haaren <harry.van.haaren@intel.com>
Acked-by: Keith Wiles <keith.wiles@intel.com>
Acked-by: Luca Boccassi <luca.boccassi@gmail.com>
Support building the EAL with meson and ninja. This involves a number of
different meson.build files for iterating through all the different
subdirectories in the EAL. The library itself will be compiled on build but
the header files are only copied from their initial location once "ninja
install" is run. Instead, we use meson dependency tracking to ensure that
other libraries which use the EAL headers can find them in their original
locations.
Note: this does not include building kernel modules on either BSD or Linux
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Reviewed-by: Harry van Haaren <harry.van.haaren@intel.com>
Acked-by: Keith Wiles <keith.wiles@intel.com>
Acked-by: Luca Boccassi <luca.boccassi@gmail.com>
Previouly, there are three channels for multi-process
(i.e., primary/secondary) communication.
1. Config-file based channel, in which, the primary process writes
info into a pre-defined config file, and the secondary process
reads the info out.
2. vfio submodule has its own channel based on unix socket for the
secondary process to get container fd and group fd from the
primary process.
3. pdump submodule also has its own channel based on unix socket for
packet dump.
It'd be good to have a generic communication channel for multi-process
communication to accommodate the requirements including:
a. Secondary wants to send info to primary, for example, secondary
would like to send request (about some specific vdev to primary).
b. Sending info at any time, instead of just initialization time.
c. Share FDs with the other side, for vdev like vhost, related FDs
(memory region, kick) should be shared.
d. A send message request needs the other side to response immediately.
This patch proposes to create a communication channel, based on datagram
unix socket, for above requirements. Each process will block on a unix
socket waiting for messages from the peers.
Three new APIs are added:
1. rte_eal_mp_action_register() is used to register an action,
indexed by a string, when a component at receiver side would like
to response the messages from the peer processe.
2. rte_eal_mp_action_unregister() is used to unregister the action
if the calling component does not want to response the messages.
3. rte_eal_mp_sendmsg() is used to send a message, and returns
immediately. If there are n secondary processes, the primary
process will send n messages.
Suggested-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Signed-off-by: Jianfeng Tan <jianfeng.tan@intel.com>
Reviewed-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Add checks during build to ensure that all symbols in the EXPERIMENTAL
version map section have __experimental tags on their definitions, and
enable the warnings needed to announce their use. Also add an
ALLOW_EXPERIMENTAL_APIS define to allow individual libraries and files
to declare the acceptability of experimental api usage
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
Append the __rte_experimental tag to api calls appearing in the
EXPERIMENTAL section of their libraries version map
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
This commit adds a new function rte_eal_cleanup().
The function serves as a hook to allow DPDK to release
internal resources (e.g.: hugepage allocations).
This function allows DPDK to become more like an ordinary
library, where the library context itself can be initialized
and cleaned up by the application.
The rte_exit() and rte_panic() functions must be considered,
particularly if they should call rte_eal_cleanup() to release any
resources or not. This patch adds the cleanup to rte_exit(),
but does not clean up on rte_panic(). The reason to not clean
up on panicing is that the developer may wish to inspect the
exact internal state of EAL and hugepages.
Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
Acked-by: Vipin Varghese <vipin.varghese@intel.com>
This patch prefix the mbuf pool ops name with "user" to indicate
that it is user defined.
Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
Acked-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
In some use cases of integer division, denominator remains constant and
numerator varies. It is possible to optimize division for such specific
scenarios.
The librte_sched uses rte_reciprocal to optimize division so, moving it to
eal/common would allow other libraries and applications to use it.
Signed-off-by: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
This patch fixes the following compilation errors in bsdapp
lib/librte_eal/bsdapp/eal/eal.c:782:5:
error: no previous prototype for function 'rte_vfio_clear_group'
int rte_vfio_clear_group(int vfio_group_fd)
^
lib/librte_eal/bsdapp/eal/eal.c:782:30:
error: unused parameter 'vfio_group_fd'
int rte_vfio_clear_group(int vfio_group_fd)
^
Fixes: c564a2a20093 ("vfio: expose clear group function for internal usages")
Signed-off-by: Moti Haimovsky <motih@mellanox.com>
other vfio based module e.g. fslmc will also need to use
the clear_group call.
So, exposing it and renaming it to *rte_vfio_clear_group*
Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
The CPUID instruction is caught by hypervisor which can return
a flag indicating one is running, and its name.
Suggested-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
mmap(2) returns MAP_FAILED, not NULL, on failure.
Signed-off-by: Michael McConville <mmcco@mykolab.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
include <sys/vmmeter.h> to fix build
otherwise the build fails with FreeBSD 12, like
In file included from contigmem.c:57:
/usr/srcs/head/src/sys/vm/vm_phys.h:122:10: error:
use of undeclared identifier 'vm_cnt'
return (vm_cnt.v_free_count += adj);
^
Signed-off-by: Kefu Chai <tchaikov@gmail.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Replace the BSD license header with the SPDX tag for files
with only an Intel copyright on them.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Move the vdev bus from lib/librte_eal to drivers/bus.
As the crypto vdev helper function refers to data structure
in rte_vdev.h, so we move those helper function into drivers/bus
too.
Signed-off-by: Jianfeng Tan <jianfeng.tan@intel.com>
Revert the patchset run-time Linking support including the following
3 commits:
Fixes: 84cc318424d4 ("eal/x86: select optimized memcpy at run-time")
Fixes: c7fbc80fe60f ("test: select memcpy alignment unit at run-time")
Fixes: 5f180ae32962 ("efd: move AVX2 lookup in its own compilation unit")
The patchset would cause perf drop in vhost/virtio loopback performance
test. Because the run-time dispatch must cost at least a function call
comparing to the compile-time dispatch. And the reference cpu cycles value
is small. And in the test, when using 128-256 bytes packet, it would cause
16%-20% perf drop with mergeble path. When using 256 bytes packet, it would
cause 13% perf drop with vector path.
Signed-off-by: Xiaoyun Li <xiaoyun.li@intel.com>
The function rte_mempool_virt2phy() is renamed to rte_mempool_virt2iova().
The new function has one less parameter because it is unused.
The deprecated function is kept as an alias to avoid breaking the API.
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
The function rte_mem_virt2phy() is kept and used in functions which
works only with physical addresses.
For all other calls this function is replaced by rte_mem_virt2iova()
which does a direct mapping (no conversion) in the VA case.
Note: the new function rte_mem_virt2iova() function matches the
behaviour implemented in rte_mem_virt2phy() by the commit
680f6c12600f ("mem: honor IOVA mode in virt2phy")
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
Renaming rte_memseg {.phys_addr} to {.iova}
Keep the deprecated name in an anonymous union to avoid breaking
the API.
Use rte_iova_t and RTE_BAD_IOVA where appropriate in
memory segment handling.
Signed-off-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
Reviewed-by: Anatoly Burakov <anatoly.burakov@intel.com>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
The memzone header is often included without good reason.
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
