13 Commits

Author SHA1 Message Date
Natanael Copa
c2d82896ac eal/linux: remove thread ID from debug message
There is no guarantee that pthread_self() returns the thread ID or that
pthread_t is an integer. The thread ID is not that useful so simply
remove it.

This fixes the following warning when building with musl libc:

lib/librte_eal/linuxapp/eal/eal_dev.c: In function 'sigbus_handler':
lib/librte_eal/linuxapp/eal/eal_dev.c:70:3: warning:
cast from pointer to integer of different size [-Wpointer-to-int-cast]
   (int)pthread_self(), info->si_addr);
   ^

Fixes: 0fc54536b14a ("eal: add failure handling for hot-unplug")
Cc: stable@dpdk.org

Signed-off-by: Natanael Copa <ncopa@alpinelinux.org>
2019-03-31 01:01:28 +01:00
Shahaf Shuler
0cbce3a167 vfio: skip DMA map failure if already mapped
Currently vfio DMA map function will fail in case the same memory
segment is mapped twice.

This is too strict, as this is not an error to map the same memory
twice.

Instead, use the kernel return value to detect such state and have the
DMA function to return as successful.

For type1 mapping the kernel driver returns EEXISTS.
For spapr mapping EBUSY is returned since kernel 4.10.

Signed-off-by: Shahaf Shuler <shahafs@mellanox.com>
Acked-by: Anatoly Burakov <anatoly.burakov@intel.com>
Acked-by: Gaetan Rivet <gaetan.rivet@6wind.com>
2019-03-30 16:48:55 +01:00
Anatoly Burakov
23d5455517 mem: warn user when running without NUMA support
Running in non-legacy mode on a NUMA-enabled system without libnuma
is unsupported, so explicitly print out a warning when trying to
do so.

Running in legacy mode without libnuma is still supported whether or
not we are running with libnuma support enabled, so also fix init to
allow that scenario.

Cc: stable@dpdk.org

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
2019-03-30 00:13:04 +01:00
Michał Mirosław
a1c6b70786 mem: count overcommit hugepages as available
With nr_overcommit_hugepages > 0 application may be able to allocate
hugepages even when free_hugepages == 0. Take this into account when
counting available hugepages.

Signed-off-by: Michał Mirosław <michal.miroslaw@atendesoftware.pl>
Reviewed-by: Anatoly Burakov <anatoly.burakov@intel.com>
2019-03-28 23:33:50 +01:00
Anatoly Burakov
034f1fb616 mem: attempt multiple hugepage allocations at init
When requesting memory with ``-m`` or ``--socket-mem`` flags,
currently the init will fail if the requested memory amount was
bigger than any one memseg list, even if total amount of
available memory was sufficient.

Fix this by making EAL to attempt to allocate pages multiple
times, until we either fulfill our memory requirements, or run
out of hugepages to allocate.

Bugzilla ID: 95

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
2019-03-28 23:28:58 +01:00
Anatoly Burakov
bec5625588 mem: improve best-effort allocation
Previously, when using non-exact allocation, we were requesting
N pages to be allocated, but allowed the memory subsystem to
allocate less than requested. However, we were still expecting
to see N contigous free pages in the memseg list.

This presents a problem because there is no way to try and
allocate as many pages as possible, even if there isn't
enough contiguous free entries in the list.

To address this, use the new "find biggest" fbarray API's when
allocating non-exact number of pages. This way, we will first
check how many entries in the list are actually available, and
then try to allocate up to that number.

Signed-off-by: Anatoly Burakov <anatoly.burakov@intel.com>
2019-03-28 23:28:54 +01:00
Nikhil Rao
db9f4430c2 service: fix parameter type for attribute
The type of value parameter to rte_service_attr_get
should be uint64_t *, since the attributes
are of type uint64_t.

Fixes: 4d55194d76a4 ("service: add attribute get function")

Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
Reviewed-by: Gage Eads <gage.eads@intel.com>
Reviewed-by: Rami Rosen <ramirose@gmail.com>
Acked-by: Harry van Haaren <harry.van.haaren@intel.com>
2019-03-28 21:07:48 +01:00
Pavan Nikhilesh
5cbd14b3e5 eal: roundup TSC frequency when estimating
When estimating tsc frequency using sleep/gettime round it up to the
nearest multiple of 10Mhz for more accuracy.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Reviewed-by: Keith Wiles <keith.wiles@intel.com>
2019-03-28 00:45:16 +01:00
Jakub Grajciar
0c7ce182a7 eal: add pending interrupt callback unregister
use case: if callback is used to receive message form socket,
and the message received is disconnect/error, this callback needs
to be unregistered, but cannot because it is still active.

With this patch it is possible to mark the callback to be
unregistered once the interrupt process is done with this
interrupt source.

Signed-off-by: Jakub Grajciar <jgrajcia@cisco.com>
2019-03-27 18:53:47 +01:00
Kevin Traynor
c0d9052afb eal/linux: fix log levels for pagemap reading failure
Commit cdc242f260e7 says:
    For Linux kernel 4.0 and newer, the ability to obtain
    physical page frame numbers for unprivileged users from
    /proc/self/pagemap was removed. Instead, when an IOMMU
    is present, simply choose our own DMA addresses instead.

In this case the user still sees error messages, so adjust
the log levels. Later, other checks will ensure that errors
are logged in the appropriate cases.

Fixes: cdc242f260e7 ("eal/linux: support running as unprivileged user")
Cc: stable@dpdk.org

Signed-off-by: Kevin Traynor <ktraynor@redhat.com>
Acked-by: Aaron Conole <aconole@redhat.com>
2019-03-27 14:54:40 +01:00
Bruce Richardson
218c4e68c1 mk: use linux and freebsd in config names
Rather than using linuxapp and bsdapp everywhere, we can change things to
use the, more readable, terms "linux" and "freebsd" in our build configs.
Rather than renaming the configs we can just duplicate the existing ones
with the new names using symlinks, and use the new names exclusively
internally. ["make showconfigs" also only shows the new names to keep the
list short] The result is that backward compatibility is kept fully but any
new builds or development can be done using the newer names, i.e.  both
"make config T=x86_64-native-linuxapp-gcc" and "T=x86_64-native-linux-gcc"
work.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
2019-03-12 23:05:06 +01:00
Bruce Richardson
742bde12f3 build/linux: rename macro from LINUXAPP to LINUX
Rename the macro to make things shorter and more comprehensible. For
both meson and make builds, keep the old macro around for backward
compatibility.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
2019-03-12 17:31:22 +01:00
Bruce Richardson
91d7846ce6 eal/linux: rename linuxapp to linux
The term "linuxapp" is a legacy one, but just calling the subdirectory
"linux" is just clearer for all concerned.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
2019-03-12 17:31:13 +01:00