This ensures secondary processes never have to calculate the TSC rate
themselves, which can be noticeable in VMs that don't have access to
arch-specific detection mechanism (such as CPUID leaf 0x15 or MSR 0xCE
on x86).
Since rte_mem_config is now internal to the EAL library, we can add
tsc_hz without ABI breakage concerns.
Reduces rte_eal_init() execution time in a secondary process from 165ms
to 66ms on my test system.
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
We had some inconsistencies between functions prototypes and actual
definitions.
Let's avoid this by only adding the experimental tag to the prototypes.
Tests with gcc and clang show it is enough.
git grep -l __rte_experimental |grep \.c$ |while read file; do
sed -i -e '/^__rte_experimental$/d' $file;
sed -i -e 's/ *__rte_experimental//' $file;
sed -i -e 's/__rte_experimental *//' $file;
done
Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Adrien Mazarguil <adrien.mazarguil@6wind.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
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>
Add a new rte_delay_us_sleep() function that uses nanosleep().
This function can be used by applications to not implement
their own nanosleep() based callback and by internal DPDK
code if CPU non-blocking delay needed.
Signed-off-by: Ilya Maximets <i.maximets@samsung.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@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>
It is easier to find all constructor functions when they use
the same macros RTE_INIT or RTE_INIT_PRIO.
The macro definitions are moved from rte_eal.h to rte_common.h.
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
When calibrating the TSC frequency, first, probe the architecture specific
function. If not available, use the existing calibrate scheme.
Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Tested-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Remove rte_pause() definition from rte_common.h and
switchover to architecture specific rte_pause.h
Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
When running single-core, some drivers tend to call rte_delay_us for a
long time, and that is causing packet drops.
To avoid this, rte_delay_us can be replaced with user-defined delay
function with:
void rte_delay_us_callback_register(void(*userfunc)(unsigned));
When userfunc==rte_delay_us_block build-in blocking delay function is
restored.
Signed-off-by: Jozef Martiniak <jozmarti@cisco.com>
Compiling for dpdk x86_x32 gives the following error:
In file included from /usr/include/sys/sysctl.h:63:0,
from lib/librte_eal/common/eal_common_timer.c:39:
/usr/include/bits/sysctl.h:19:3: error: #error "sysctl system call is unsupported in x32 kernel"
# error "sysctl system call is unsupported in x32 kernel"
^
Including sysctl.h was added by mistake when merging bsd and linux EAL
timer code. It can be safely removed in this file, fixing the
compilation.
Fixes: 040cf8a411 ("eal: deduplicate timer functions")
Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Fix error where TSC freq is 0.
The logical OR operator evaluates to 1 if any of its operands is
different than 0.
Error showed later while initializing PMD:
EAL: TSC frequency is ~0 KHz
<snip>
PMD: eth_ixgbe_dev_init(): Hardware Initialization Failure: -30
EAL: Error - exiting with code: 1
Cause: Requested device 0000:84:00.0 cannot be used
Fixes: 040cf8a41187 ("eal: deduplicate timer functions")
Signed-off-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
Acked-by: John McNamara <john.mcnamara@intel.com>
Acked-by: Thomas Monjalon <thomas.monjalon@6wind.com>
Move common functions from BSD/Linux to eal_common_timer.c.
BSD uses sysctl and Linux uses CLOCK_MONOTIC_RAW to calibrate TSC.
HPET is specific to Linux and not integrated in the common init.
Signed-off-by: Ravi Kerur <rkerur@gmail.com>
Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
