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This option is used to initialize the ovs_numa module with a fake
configuration and to avoid pthread_setaffinity_np() calls. It will be
useful to test dpif-netdev with pmd threads.
Since it is only used for testing it is not documented in the man pages.
Signed-off-by: Daniele Di Proietto <diproiettod@vmware.com>
Acked-by: Ilya Maximets <i.maximets@samsung.com>
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This commit moves the code that sets the pmd threads affinity from
netdev-dpdk to ovs-numa. There's one small part left in netdev-dpdk, to
set the lcore_id.
Now dpif-netdev will call both modules (ovs-numa and netdev-dpdk) when
starting a pmd thread.
This change will allow having a dummy implementation of the set affinity
call, for testing purposes.
Signed-off-by: Daniele Di Proietto <diproiettod@vmware.com>
Acked-by: Ilya Maximets <i.maximets@samsung.com>
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Instead of having static inline stubs for non linux platform we can use
the implementations in ovs-numa.c. With one small change to
ovs_numa_dump_cores_on_numa(), they will behave exactly like the
stubs for the non-linux case, because 'found_numa_and_core' will be
false and the socket and cpu hmaps will be empty.
There are a few places where conditional compilation is required: the
code that parses the linux specific sysfs entries and its dependencies.
It requires opendir() and readdir() and doesn't make sense outside of
linux anyway.
This change is required to have a cross-platform ovs-numa dummy
implementation for testing.
Signed-off-by: Daniele Di Proietto <diproiettod@vmware.com>
Acked-by: Ilya Maximets <i.maximets@samsung.com>
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All code is now in include/openvswitch/list.h.
Signed-off-by: Ben Warren <ben@skyportsystems.com>
Acked-by: Ryan Moats <rmoats@us.ibm.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>
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DPDK lcore_id is unsigned. We need to support big values like
LCORE_ID_ANY (=UINT32_MAX). Therefore I am changing the type everywhere
in OVS.
Signed-off-by: Daniele Di Proietto <diproiettod@vmware.com>
Signed-off-by: Ethan Jackson <ethan@nicira.com>
Acked-by: Ethan Jackson <ethan@nicira.com>
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Suppress the following warning:
> cc1: warnings being treated as errors
> In file included from ../lib/dpif.h:394:0,
> from ../lib/netdev.c:28:
> ../lib/ovs-numa.h: In function 'ovs_numa_dump_cores_on_numa':
> ../lib/ovs-numa.h:150:33: error: unused parameter 'numa_id'
The problem was introduced by
commit 9da2564e2bfa4ffc5a05552630ce2aca00a521c9.
("ovs-numa: Refine the module.")
Signed-off-by: YAMAMOTO Takashi <yamamoto@valinux.co.jp>
Acked-by: Ben Pfaff <blp@nicira.com>
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This commit refines the ovs-numa module by eliminating
duplicated codes and exposing API for dumping the cores
on numa node.
Signed-off-by: Alex Wang <alexw@nicira.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
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This commit adds support in ovs-numa module for reading a user
specified cpu mask, which configures the availability of the cores.
The cpu mask has the format of a hex string similar to the EAL '-c
COREMASK' option input or the 'taskset' mask input. The lowest order
bit corresponds to the first CPU core. Bit value '1' means the
corresponding core is available.
An upcoming patch will allow user to configure the mask via OVSDB.
Signed-off-by: Alex Wang <alexw@nicira.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
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Signed-off-by: Alex Wang <alexw@nicira.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
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'numa' and 'socket' are currently used interchangeably in ovs-numa.
But they are not always equivalent as some platform can have multiple
sockets on a numa node. To avoid confusion, this commit renames all
the 'cpu_socket' to 'numa_node'.
Signed-off-by: Alex Wang <alexw@nicira.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
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socket and cpu core info.
Signed-off-by: Alex Wang <alexw@nicira.com>
Acked-by: Ben Pfaff <blp@nicira.com>
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