| Age | Commit message (Collapse) | Author |
|---|
|
This alters the way rx packets are accounted for by
counting them when they are processed by netdev_dummy_rx_recv(),
which seems to be a common path used by all received packets.
Previously accounting was done earlier, in netdev_dummy_receive(),
however this does not appear to count packets that are received via
a socket.
This resolves packet counting errors reported by the following
OFtest tests:
port_stats.MultiFlowStats
port_stats.SingleFlowStats
pktact.WildcardPriorityWithDelete
pktact.WildcardPriority
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Ben Pfaff <blp@nicira.com>
|
|
Signed-off-by: Ben Pfaff <blp@nicira.com>
|
|
There's little point to override patch ports, which is implmeneted
purely in our userland process these days, with a dummy implementation.
This allows testing patch ports in "make sandbox" environment.
Signed-off-by: YAMAMOTO Takashi <yamt@mwd.biglobe.ne.jp>
Signed-off-by: Ben Pfaff <blp@nicira.com>
|
|
We have a call chain like this:
iface_configure_qos() calls
netdev_dump_queues(), which calls
netdev_linux_dump_queues(), which calls back through 'cb' to
qos_unixctl_show_cb(), which calls
netdev_delete_queue(), which calls
netdev_linux_delete_queue().
Both netdev_dump_queues() and netdev_linux_delete_queue() take the same
mutex in the same netdev, which deadlocks.
This commit fixes the problem by getting rid of the callback.
netdev_linux_dump_queue_stats() would benefit from the same treatment but
it's less urgent because I don't see any callbacks from that function that
call back into a netdev function.
Bug #19319.
Reported-by: Scott Hendricks <shendricks@vmware.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
|
|
We've seen a number of deadlocks in the tree since thread safety was
introduced. So far, all of these are self-deadlocks, that is, a single
thread acquiring a lock and then attempting to re-acquire the same lock
recursively. When this has happened, the process simply hung, and it was
somewhat difficult to find the cause.
POSIX "error-checking" mutexes check for this specific problem (and
others). This commit switches from other types of mutexes to
error-checking mutexes everywhere that we can, that is, everywhere that
we're not using recursive mutexes. This ought to help find problems more
quickly in the future.
There might be performance advantages to other kinds of mutexes in some
cases. However, the existing mutex type choices were just guesses, so I'd
rather go for easy detection of errors until we know that other mutex
types actually perform better in specific cases. Also, I did a quick
microbenchmark of glibc mutex types on my host and found that the
error checking mutexes weren't any slower than the other types, at least
when the mutex is uncontended.
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Ethan Jackson <ethan@nicira.com>
|
|
This commit adds some superfluous locks and unlocks, but they should not
hurt performance and do make Clang happy.
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Andy Zhou <azhou@nicira.com>
|
|
Found by Clang.
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Andy Zhou <azhou@nicira.com>
|
|
Commit 86f1d0326bd0 (netdev-dummy: Use netdev_get_devices() instead of a
local shash.) caused netdev-dummy functions that iterate over all dummy
devices to iterate only over the ones that have class 'dummy_class'. This
seemed to obviously include all the ones that we want, but in fact
when ovs-vswitch is invoked with --enable-dummy=override, there are more
dummy classes than just dummy_class, which this new form of iteration
skipped over, with various negative consequences that showed up in some
testing.
This commit switches netdev-dummy back to internally tracking its own
dummy devices. It fixes the tests for me.
Signed-off-by: Ben Pfaff <blp@nicira.com>
|
|
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Andy Zhou <azhou@nicira.com>
|
|
This is the same lifecycle used in the ofproto provider interface.
Compared to the previous netdev provider interface, it has the
advantage that the netdev top layer can control when any given
netdev becomes visible to the outside world.
Signed-off-by: Ben Pfaff <blp@nicira.com>
|
|
When an upcoming commit introduces thread safety into the netdev API, this
allows netdev-dummy to avoid adding more internal locking by taking
advantage of netdev_get_devices() refcounting.
Signed-off-by: Ben Pfaff <blp@nicira.com>
|
|
This code failed to free the packet if it was too big for the caller.
Signed-off-by: Ben Pfaff <blp@nicira.com>
|
|
This commit adds annotations for thread safety check. And the
check can be conducted by using -Wthread-safety flag in clang.
Co-authored-by: Alex Wang <alexw@nicira.com>
Signed-off-by: Alex Wang <alexw@nicira.com>
Signed-off-by: Ethan Jackson <ethan@nicira.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
|
|
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Andy Zhou <azhou@nicira.com>
|
|
Signed-off-by: Ben Pfaff <blp@nicira.com>
|
|
Added support to allow mega flow specified and displayed. ovs-dpctl tool
is mainly used as debugging tool.
This patch also implements the low level user space routines to send
and receive mega flow netlink messages. Those netlink suppor
routines are required for forthcoming user space mega flow patches.
Added a unit test to test parsing and display of mega flows.
Ethan contributed the ovs-dpctl mega flow output function.
Co-authored-by: Ethan Jackson <ethan@nicira.com>
Signed-off-by: Ethan Jackson <ethan@nicira.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
|
|
Signed-off-by: Ben Pfaff <blp@nicira.com>
|
|
Ethan pointed out that this wasn't very useful.
Signed-off-by: Ben Pfaff <blp@nicira.com>
|
|
An upcoming patch will add another user.
Signed-off-by: Ben Pfaff <blp@nicira.com>
|
|
It doesn't seem like a good idea to allow the queue length to grow without
bound, even for a test-only device.
Signed-off-by: Ben Pfaff <blp@nicira.com>
|
|
There's no particular reason that netdev_dummy_register() has to care about
the particular OS, except that the tests like to use the special Linux-only
tunnel vport types. But that can be done better, I think, by just always
registering them from netdev_dummy_register() and making that function
idempotent, so that calling it twice under Linux has no additional effect.
This commit implements that solution.
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Ed Maste <emaste@freebsd.org>
|
|
The distinction between struct netdev_dev and struct netdev has always
been confusing. Now that previous commits have eliminated all interesting
state from struct netdev, this commit deletes it and renames struct
netdev_dev to take its place. Now the situation makes much more sense and
I won't have to continue making embarrassed explanations in the future.
Good riddance.
Signed-off-by: Ben Pfaff <blp@nicira.com>
|
|
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Ethan Jackson <ethan@nicira.com>
|
|
Separating packet capture from "struct netdev" means that there is no
remaining per-"struct netdev" state, which will allow us to get rid of
"struct netdev_dev" (by renaming it "struct netdev").
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Ethan Jackson <ethan@nicira.com>
|
|
This gets rid of the only per-instance data in "struct netdev", which
will make it possible to merge "struct netdev_dev" into "struct netdev" in
a later commit.
Ed Maste wrote the netdev-bsd changes in this commit.
Signed-off-by: Ben Pfaff <blp@nicira.com>
Co-authored-by: Ed Maste <emaste@freebsd.org>
Signed-off-by: Ed Maste <emaste@freebsd.org>
Tested-by: Ed Maste <emaste@freebsd.org>
|
|
This patch adds an sFlow test to the test suite.
I have only tested this on a Fedora 17 OS.
Signed-off-by: Neil Mckee <neil.mckee@inmon.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
|
|
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Ethan Jackson <ethan@nicira.com>
|
|
This patch removes the final bit of linux specific code which
prevents building netdev-vport everywhere. With this, other
platforms automatically get access to patch ports, and (if their
datapath supports it), flow based tunneling.
Signed-off-by: Ethan Jackson <ethan@nicira.com>
|
|
This is a straight search-and-replace, except that I also removed #include
<assert.h> from each file where there were no assert calls left.
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Ethan Jackson <ethan@nicira.com>
|
|
Future patches will need to know the details of a netdev's tunnel
configuration from outside the netdev library.
Signed-off-by: Ethan Jackson <ethan@nicira.com>
|
|
get_status() is a much more intuitive name since "status" is what
the database column is called.
Signed-off-by: Ethan Jackson <ethan@nicira.com>
|
|
There's currently no way to set the admin state on dummy netdevs.
This patch provides a mechanism to do so which will be used in
future unit tests.
Signed-off-by: Ethan Jackson <ethan@nicira.com>
|
|
Replaced all instances of Nicira Networks(, Inc) to Nicira, Inc.
Feature #10593
Signed-off-by: Raju Subramanian <rsubramanian@nicira.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
|
|
get_status actually returns driver information, so get_drv_info()
is better name.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
|
|
The unixctl library had used the vde2 management protocol since the
early days of Open vSwitch. As Open vSwitch has matured, several
Python daemons have been added to the code base which would benefit
from a unixctl implementations. Instead of implementing the old
unixctl protocol in Python, this patch changes unixctl to use JSON
RPC for which we already have an implementation in both Python and
C. Future patches will need to implement a unixctl library in
Python on top of JSON RPC.
Signed-off-by: Ethan Jackson <ethan@nicira.com>
|
|
Plain "--enable-dummy" just creates new dummy dpif and netdev classes.
This commit makes "--enable-dummy=override" go a step farther and actually
delete and replace all the existing dpif and netdev classes by copies of
the dummy class.
This is useful for testing in an environment where changing the classes in
Bridge or Interface records is challenging.
Requested-by: Andrew Lambeth <wal@nicira.com>
Tested-by: Andrew Lambeth <wal@nicira.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
|
|
Found by valgrind.
Signed-off-by: Ben Pfaff <blp@nicira.com>
|
|
This paves the way to allow unit tests to test the whole switch
on an end-to-end basis.
Signed-off-by: Ben Pfaff <blp@nicira.com>
|
|
It has no remaining users.
|
|
An interface's 'link_resets' column represents the number of times
Open vSwitch has observed its link_state change.
|
|
netdev_find_dev_by_in4() appears to no longer be used and thus
can be removed. This also allows netdev_enumerate(), the
enumerate member of struct netdev_class and netdev_linux_enumerate()
to be removed.
I noticed this as netdev_linux_enumerate() makes use of if_nameindex()
and if_freenameindex() which are not available when compiling using
the Android NDK r6b (Android API level 13).
|
|
There is no need to have vport attribute MTU (OVS_VPORT_ATTR_MTU) as
linux net-dev-ioctl can be used to get/set MTU for linux device.
Following patch removes OVS_VPORT_ATTR_MTU from datapath protocol.
This patch also adds netdev_set_mtu interface. So that MTU adjustments
can be done from OVS userspace. get_mtu() interface is also changed, now
get_mtu() returns EOPNOTSUPP rather than returning 0 and setting *pmtu
to INT_MAX in case there is no MTU attribute for given device.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
|
|
Until now, each call to netdev_open() for a particular network device
had to either specify a set of network device arguments that was either
empty or (for devices that already existed) equal to the existing device's
configuration. Unfortunately, the definition of "equality" in the latter
case was mostly done in terms of strict equality of string-to-string maps,
which caused problems in cases where, for example, one set of arguments
specified the default value of an optional argument explicitly and the
other omitted it.
The netdev interface does have provisions for defining equality other ways,
but this had only been done in one case that was especially problematic in
practice. One way to solve this particular problem would be to carefully
define equality in all the problematic cases.
This commit takes another approach based on the realization that there is
really no need to do any comparisons. Instead, it removes configuration
at netdev_open() time entirely, because almost all of netdev_open()'s
callers are not interested in creating and configuring a netdev. Most of
them just want to open a configured device and use it. Therefore, this
commit stops providing any configuration arguments to netdev_open() and the
provider functions that it calls. Instead, a caller that does want to
configure a device does so after it opens it, by calling
netdev_set_config().
This change allows us to simplify the netdev interface a bit. There is no
longer any need to implement argument comparisons. As a result, there is
also no need for "struct netdev_dev" to keep track of configuration at all.
Instead, the network devices that have configuration keep track of it in
their own internal form.
This new interface does mean that it becomes possible to accidentally
create and try to use an unconfigured netdev that requires configuration.
Bug #6677.
Reported-by: Paul Ingram <paul@nicira.com>
|
|
The Open vSwitch tree only has one user of the ability for a netdev to
receive packets from a network device. Thus, this commit simplifies the
common-case use of the netdev interface by replacing the "ethertype" option
from "struct netdev_options" by a new netdev_listen() call.
The only user of netdev_listen() wants to receive all packets from a
network device, so this commit also removes the ability to restrict the
received packets to a particular protocol. (This ability was once used by
the Open vSwitch integrated DHCP client, but that code has been removed.)
This commit also simplifies and improves the implementation of the code
in netdev-linux that started listening to a network device. Before, I had
not figured out how to avoid receiving all packets on all devices before
binding to a particular device, but I took a closer look at the kernel code
and figured it out.
I've tested that the userspace datapath (dpif-netdev), the only user of
netdev_recv(), still works after this change.
|
|
When doing a netdev_open(), a check is first done to make sure the
arguments are equivalent for any open devices with the same name. In
most cases, a simple shash comparison is sufficient. However, IPsec
key configuration is handled by an external program, so it is not pushed
down into the kernel module. Thus, when the "unparse_config" method is
called on an existing IPsec-based vport, a simple comparison with the
returned data will not match the original configuration. This commit
adds code to allow netdev-specific argument comparisons and has
"ipsec_gre" make use of them.
Bug #5575
|
|
Neither of these constructs are used anymore.
|
|
This new function will provide a much simpler replacement for
netdev_monitor in the future.
|
|
This gives network device implementations the opportunity to fetch an
existing device's configuration and store it as their arguments, so that
netdev clients can find out how an existing device is configured.
So far netdev-vport is the only implementation that needs to use this.
The next commit will add use by clients.
Reviewed by Justin Pettit.
|
|
This commit allows users to check link status in bonded ports using
MII instead of carrier.
|
|
This commit removes the tunnel_egress_iface column from the
interface table and moves it's data to the status column. In the
process it reverts the database to version 1.0.0.
|
