Add new API function to add more pipe configuration profiles
post initialization to the set of exisitng profiles specified during
the creation of scheduler port.
This API removes the current limitation that forces the user
to define the full set of pipe profiles as the part of port parameters
while port is being created.
Signed-off-by: Jasvinder Singh <jasvinder.singh@intel.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>
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>
The librte_sched uses rte_bitmap to manage large arrays of bits in an
optimized method so, moving it to eal/common would allow other libraries
and applications to use it.
Signed-off-by: Pavan Nikhilesh <pbhagavatula@caviumnetworks.com>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
Since SSE4 is now part of the minimum requirements for DPDK, we don't need
to check for its presence any more.
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
* Removed setting CONFIG_RTE_SCHED_VECTOR=n from armv8a config
so that the setting from common_base is taken as the default
setting for armv8a
* Verified the changes with sched_autotest unit test case
Signed-off-by: Ashwin Sekhar T K <ashwin.sekhar@caviumnetworks.com>
Acked-by: Jianbo Liu <jianbo.liu@linaro.org>
Prevent a segmentation fault in rte_sched_port_free by only accessing
the port structure after the NULL pointer check has been made.
Fixes: 7b3c4f35 ("sched: fix releasing enqueued packets")
Cc: stable@dpdk.org
Signed-off-by: Alan Dewar <adewar@brocade.com>
Signed-off-by: Jan Blunck <jblunck@infradead.org>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
rte_sched_port_free should release only enqueued packets of all queues.
Previous behavior is that enqueued and already dequeued packets of
only first 4 queues are released.
Fixes: 61383240 ("sched: release enqueued mbufs when freeing port")
Signed-off-by: Hiroyuki Mikita <h.mikita89@gmail.com>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
The old code was doing a floating point divide for each rte_dequeue()
which is very expensive. Change to using fixed point scaled inverse
multiply. To maintain equivalent precision, scaled math is used.
The application ABI is the same.
This improved performance from 5Gbit/sec to 10 Gbit/sec when configured
for 10 Gbit/sec rate.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
fix the error reported by checkpatch:
"ERROR: return is not a function, parentheses are not required"
remove parentheses in return like:
"return (logical expressions)"
remove parentheses in return a function like:
"return (rte_mempool_lookup(...))"
Fixes: 6307b909b8e0 ("lib: remove extra parenthesis after return")
Signed-off-by: Huawei Xie <huawei.xie@intel.com>
Irrelevant of the target, the preprocessor #ifdef SSE2 for the
grinder_pipe_exists function is inadequate since the __mm_testz_si128
function requires SSE4.1, PTEST instruction described in
https://en.wikipedia.org/wiki/SSE4#SSE4.1 (I do no have better spec
reference). I have bumped the preprocessor #ifdef to require SSE4.
The Atom N2600 does not have SSE4, http://ark.intel.com/products/58916,
and so I had trouble building rte_sched with optimized version of
grinder_pipe_exists, with following:
error: inlining failed in call to always_inline _mm_testz_si128’:
target specific option mismatch
GCC 4.9 correctly identifies my target as not having SSE4, and with
provided patch builds the non-optimized version of grinder_pipe_exists.
Signed-off-by: Mike Sowka <msowka@gmail.com>
gcc 4.3.4 does not include "immintrin.h", and will post below error:
lib/librte_sched/rte_sched.c:56:23: error:
immintrin.h: No such file or directory
This compiler issue is fixed with rte_vect.h
There is another issue, need SSE2 support
Fixes: 42ec27a0178a ("sched: enable SSE optimizations in config")
Signed-off-by: Michael Qiu <michael.qiu@intel.com>
Otherwise mbufs will leak when the port is destroyed. The
rte_sched_port_qbase() and rte_sched_port_qsize() functions are used
in free now, so move them up.
Signed-off-by: Simon Kagstrom <simon.kagstrom@netinsight.net>
Increase the number of possible subports per port to allow up to 16 bits.
It is still possible that this will require excessive RAM.
Although mbuf structure is changed, it is ABI compatiable since it
just expands existing sched part of structure to overlap pre-existing hole
in the hash element of structure.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Make rte_sched conform to kernel/DPDK coding style.
Fix missing whitespace and some of the excessively long lines.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Only use RTE_SCHED_PORT_N_GRINDERS from config.
Use RTE_BUILD_BUG_ON for errors.
The remaining implementation constants can be put together.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Drop conditional code which was for debugging credit checks.
It is hard to maintain code with any additional #ifdef baggage.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
All #ifdefs in code should be enabled/disabled via DPDK config
(or better yet removed all together).
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Break block comments that exceed common practice for line length.
Shorten wording for obvious things.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
The actual port_hierarchy was deprecated and hidden in 2.1
so drop it from view in DPDK 2.2.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Right now the scheduler hierarchy is encoded as a bitfield
that is visible as part of the ABI. This creates an barrier
limiting future expansion of the hierarchy.
As a transistional step. hide the actual layout of the hierarchy
and mark the exposed structure as deprecated. This will allow for
expansion in later release.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
The setup messages should be at DEBUG level since they are not
important for normal operation of system. The messages about
problems should be at NOTICE or ERR level.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
syslog does not like tabs in log messages; tab gets translated to #011
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
Want to be able to build with RTE_SCHED_RED enabled but
allow disabling RED on a per-queue basis at runtime.
RED is disabled unless min/max thresholds set.
Signed-off-by: Stephen Hemmminger <stephen@networkplumber.org>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
CACHE_LINE_SIZE is a macro defined in machine/param.h in FreeBSD and
conflicts with DPDK macro version.
Adding RTE_ prefix to avoid conflicts.
CACHE_LINE_MASK and CACHE_LINE_ROUNDUP are also prefixed.
Signed-off-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
[Thomas: updated on HEAD, including PPC]
The rte_pktmbuf structure was initially included in the rte_mbuf
structure. This was needed when there was 2 types of mbuf (ctrl and
packet). As the control mbuf has been removed, we can merge the
rte_pktmbuf into the rte_mbuf structure.
Advantages of doing this:
- the access to mbuf fields is easier (ex: m->data instead of m->pkt.data)
- make the structure more consistent: for instance, there was no reason
to have the ol_flags field in rte_mbuf
- it will allow a deeper reorganization of the rte_mbuf structure in the
next commits, allowing to gain several bytes in it
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
[Bruce: updated for latest code and new example apps]
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>
This commit removes trailing whitespace from lines in files. Almost all
files are affected, as the BSD license copyright header had trailing
whitespace on 4 lines in it [hence the number of files reporting 8 lines
changed in the diffstat].
Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
[Thomas: remove spaces before tabs in libs]
[Thomas: remove more trailing spaces in non-C files]
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
The rte_scheduler will get stuck and not deliver any more packets
if there are two active subports and then one of them stops enqueing
more packets. This is because of a bug in how the grinder state machines
are managed.
If a non-zero grinder is assigned (but not yet active), then the dequeue
would miss it and always return zero packets. The cure is to always
do a first pass over all grinders.
Signed-off-by: Stephen Hemminger <shemming@brocade.com>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Fix build error if RTE_SCHED_DEBUG is enabled.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
The existing rte scheduler can only be safely configured once per port
because a memory zone has a fixed size once it is created and can never
be freed or change in size.
This patch changes the scheduler to use rte_malloc instead. This allows
for a port to be reconfigured by doing rte_sched_port_free followed
rte_sched_port_config.
The patch also removes the now unused name parameter from the
port parameters structure.
Signed-off-by: Stephen Hemminger <shemming@brocade.com>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
