| 8ec609d8b561468691b60347ff594bd443ea58c0 |
|
12-Nov-2014 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Convert dp rcu read operation to locked operations
dp read operations depends on ovs_dp_cmd_fill_info(). This API
needs to looup vport to find dp name, but vport lookup can
fail. Therefore to keep vport reference alive we need to
take ovs lock.
Introduced by commit 6093ae9abac1 ("openvswitch: Minimize
dp and vport critical sections").
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Andy Zhou <azhou@nicira.com>
|
| 330966e501ffe282d7184fde4518d5e0c24bc7f8 |
|
20-Oct-2014 |
Florian Westphal <fw@strlen.de> |
net: make skb_gso_segment error handling more robust
skb_gso_segment has three possible return values:
1. a pointer to the first segmented skb
2. an errno value (IS_ERR())
3. NULL. This can happen when GSO is used for header verification.
However, several callers currently test IS_ERR instead of IS_ERR_OR_NULL
and would oops when NULL is returned.
Note that these call sites should never actually see such a NULL return
value; all callers mask out the GSO bits in the feature argument.
However, there have been issues with some protocol handlers erronously not
respecting the specified feature mask in some cases.
It is preferable to get 'have to turn off hw offloading, else slow' reports
rather than 'kernel crashes'.
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| f5796684069e0c71c65bce6a6d4766114aec1396 |
|
04-Oct-2014 |
Jesse Gross <jesse@nicira.com> |
openvswitch: Add support for Geneve tunneling.
The Openvswitch implementation is completely agnostic to the options
that are in use and can handle newly defined options without
further work. It does this by simply matching on a byte array
of options and allowing userspace to setup flows on this array.
Signed-off-by: Jesse Gross <jesse@nicira.com>
Singed-off-by: Ansis Atteka <aatteka@nicira.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Thomas Graf <tgraf@noironetworks.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 6b205b2ca17e88ef5e10451b720056b790cc63a5 |
|
04-Oct-2014 |
Jesse Gross <jesse@nicira.com> |
openvswitch: Factor out allocation and verification of actions.
As the size of the flow key grows, it can put some pressure on the
stack. This is particularly true in ovs_flow_cmd_set(), which needs several
copies of the key on the stack. One of those uses is logically separate,
so this factors it out to reduce stack pressure and improve readibility.
Signed-off-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 67fa034194bf82a3d5ca841759d921297daa63ca |
|
04-Oct-2014 |
Jesse Gross <jesse@nicira.com> |
openvswitch: Add support for matching on OAM packets.
Some tunnel formats have mechanisms for indicating that packets are
OAM frames that should be handled specially (either as high priority or
not forwarded beyond an endpoint). This provides support for allowing
those types of packets to be matched.
Signed-off-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 9b67aa4a82492f128adfccc63e61ab57c1ce1dfd |
|
18-Sep-2014 |
Samuel Gauthier <samuel.gauthier@6wind.com> |
openvswitch: restore OVS_FLOW_CMD_NEW notifications
Since commit fb5d1e9e127a ("openvswitch: Build flow cmd netlink reply only if needed."),
the new flows are not notified to the listeners of OVS_FLOW_MCGROUP.
This commit fixes the problem by using the genl function, ie
genl_has_listerners() instead of netlink_has_listeners().
Signed-off-by: Samuel Gauthier <samuel.gauthier@6wind.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 971427f353f3c42c8dcef62e7124440df68eb809 |
|
16-Sep-2014 |
Andy Zhou <azhou@nicira.com> |
openvswitch: Add recirc and hash action.
Recirc action allows a packet to reenter openvswitch processing.
currently openvswitch lookup flow for packet received and execute
set of actions on that packet, with help of recirc action we can
process/modify the packet and recirculate it back in openvswitch
for another pass.
OVS hash action calculates 5-tupple hash and set hash in flow-key
hash. This can be used along with recirculation for distributing
packets among different ports for bond devices.
For example:
OVS bonding can use following actions:
Match on: bond flow; Action: hash, recirc(id)
Match on: recirc-id == id and hash lower bits == a;
Action: output port_bond_a
Signed-off-by: Andy Zhou <azhou@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
|
| 8c8b1b83fcdd0f05e1f66ed6f8a2e831d5d374a2 |
|
16-Sep-2014 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Use tun_key only for egress tunnel path.
Currently tun_key is used for passing tunnel information
on ingress and egress path, this cause confusion. Following
patch removes its use on ingress path make it egress only parameter.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Andy Zhou <azhou@nicira.com>
|
| 83c8df26a3b654871c0503fcf6eac61777e12ea1 |
|
16-Sep-2014 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: refactor ovs flow extract API.
OVS flow extract is called on packet receive or packet
execute code path. Following patch defines separate API
for extracting flow-key in packet execute code path.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Andy Zhou <azhou@nicira.com>
|
| 2ff3e4e4868675da1024175215991fa6d9856731 |
|
16-Sep-2014 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Remove pkt_key from OVS_CB
OVS keeps pointer to packet key in skb->cb, but the packet key is
store on stack. This could make code bit tricky. So it is better to
get rid of the pointer.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
|
| c5eba0b6f84eb4f0fdc1d8a4abc1c7d40db6e8a6 |
|
03-Sep-2014 |
Li RongQing <roy.qing.li@gmail.com> |
openvswitch: distinguish between the dropped and consumed skb
distinguish between the dropped and consumed skb, not assume the skb
is consumed always
Cc: Thomas Graf <tgraf@noironetworks.com>
Cc: Pravin Shelar <pshelar@nicira.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 4ee45ea05c8710c7ab8a5eb1a72700b874712746 |
|
02-Sep-2014 |
Li RongQing <roy.qing.li@gmail.com> |
openvswitch: fix a memory leak
The user_skb maybe be leaked if the operation on it failed and codes
skipped into the label "out:" without calling genlmsg_unicast.
Cc: Pravin Shelar <pshelar@nicira.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 2072ec846a4c4ee99a6e59ce989b49b22edad59d |
|
07-Aug-2014 |
Jean Sacren <sakiwit@gmail.com> |
openvswitch: fix duplicate #include headers
The #include headers net/genetlink.h and linux/genetlink.h both were
included twice, so delete each of the duplicate.
Signed-off-by: Jean Sacren <sakiwit@gmail.com>
Cc: Pravin Shelar <pshelar@nicira.com>
Cc: dev@openvswitch.org
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| d0e992aa0270663872c56f07473a7f43adee5bd5 |
|
26-Jul-2014 |
Himangi Saraogi <himangi774@gmail.com> |
openvswitch: Use IS_ERR_OR_NULL
This patch introduces the use of the macro IS_ERR_OR_NULL in place of
tests for NULL and IS_ERR.
The following Coccinelle semantic patch was used for making the change:
@@
expression e;
@@
- e == NULL || IS_ERR(e)
+ IS_ERR_OR_NULL(e)
|| ...
Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| f53e38317d581399eb67809d6b6b6c2c107db50c |
|
18-Jul-2014 |
Andy Zhou <azhou@nicira.com> |
openvswitch: Avoid memory corruption in queue_userspace_packet()
In queue_userspace_packet(), the ovs_nla_put_flow return value is
not checked. This is fine as long as key_attr_size() returns the
correct value. In case it does not, the current code may corrupt buffer
memory. Add a run time assertion catch this case to avoid silent
failure.
Reported-by: Ben Pfaff <blp@nicira.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
|
| 5cd667b0a4567048bb555927d6ee564f4e5620a9 |
|
18-Jul-2014 |
Alex Wang <alexw@nicira.com> |
openvswitch: Allow each vport to have an array of 'port_id's.
In order to allow handlers directly read upcalls from datapath,
we need to support per-handler netlink socket for each vport in
datapath. This commit makes this happen. Also, it is guaranteed
to be backward compatible with previous branch.
Signed-off-by: Alex Wang <alexw@nicira.com>
Acked-by: Thomas Graf <tgraf@redhat.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
|
| 48e48a70c08a8a68f8697f8b30cb83775bda8001 |
|
16-Jul-2014 |
stephen hemminger <stephen@networkplumber.org> |
openvswitch: make generic netlink group const
Generic netlink tables can be const.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 5b9e7e1607956e2454ccbd94ccf5631309ade054 |
|
26-Jun-2014 |
Jiri Pirko <jiri@resnulli.us> |
openvswitch: introduce rtnl ops stub
This stub now allows userspace to see IFLA_INFO_KIND for ovs master and
IFLA_INFO_SLAVE_KIND for slave.
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 4a46b24e147dfa9b858026da02cad0bdd4e149d2 |
|
01-Jul-2014 |
Alex Wang <alexw@nicira.com> |
openvswitch: Use exact lookup for flow_get and flow_del.
Due to the race condition in userspace, there is chance that two
overlapping megaflows could be installed in datapath. And this
causes userspace unable to delete the less inclusive megaflow flow
even after it timeout, since the flow_del logic will stop at the
first match of masked flow.
This commit fixes the bug by making the kernel flow_del and flow_get
logic check all masks in that case.
Introduced by 03f0d916a (openvswitch: Mega flow implementation).
Signed-off-by: Alex Wang <alexw@nicira.com>
Acked-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
|
| ad55200734c65a3ec5d0c39d6ea904008baea536 |
|
07-May-2014 |
Ben Pfaff <blp@nicira.com> |
openvswitch: Fix tracking of flags seen in TCP flows.
Flow statistics need to take into account the TCP flags from the packet
currently being processed (in 'key'), not the TCP flags matched by the
flow found in the kernel flow table (in 'flow').
This bug made the Open vSwitch userspace fin_timeout action have no effect
in many cases.
This bug is introduced by commit 88d73f6c411ac2f0578 (openvswitch: Use
TCP flags in the flow key for stats.)
Reported-by: Len Gao <leng@vmware.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Jarno Rajahalme <jrajahalme@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
|
| 0c200ef94c9492205e18a18c25650cf27939889c |
|
07-May-2014 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Simplify genetlink code.
Following patch get rid of struct genl_family_and_ops which is
redundant due to changes to struct genl_family.
Signed-off-by: Kyle Mestery <mestery@noironetworks.com>
Acked-by: Kyle Mestery <mestery@noironetworks.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
|
| 893f139b9a6c00c097b9082a90f3041cfb3a0d20 |
|
06-May-2014 |
Jarno Rajahalme <jrajahalme@nicira.com> |
openvswitch: Minimize ovs_flow_cmd_new|set critical sections.
Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
|
| 37bdc87ba00dadd0156db77ba48224d042202435 |
|
05-May-2014 |
Jarno Rajahalme <jrajahalme@nicira.com> |
openvswitch: Split ovs_flow_cmd_new_or_set().
Following patch will be easier to reason about with separate
ovs_flow_cmd_new() and ovs_flow_cmd_set() functions.
Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
|
| aed067783e505bf66dcafa8647d08619eb5b1c55 |
|
05-May-2014 |
Jarno Rajahalme <jrajahalme@nicira.com> |
openvswitch: Minimize ovs_flow_cmd_del critical section.
ovs_flow_cmd_del() now allocates reply (if needed) after the flow has
already been removed from the flow table. If the reply allocation
fails, a netlink error is signaled with netlink_set_err(), as is
already done in ovs_flow_cmd_new_or_set() in the similar situation.
Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
|
| 0e9796b4af9ef490e203158cb738a5a4986eb75c |
|
05-May-2014 |
Jarno Rajahalme <jrajahalme@nicira.com> |
openvswitch: Reduce locking requirements.
Reduce and clarify locking requirements for ovs_flow_cmd_alloc_info(),
ovs_flow_cmd_fill_info() and ovs_flow_cmd_build_info().
A datapath pointer is available only when holding a lock. Change
ovs_flow_cmd_fill_info() and ovs_flow_cmd_build_info() to take a
dp_ifindex directly, rather than a datapath pointer that is then
(only) used to get the dp_ifindex. This is useful, since the
dp_ifindex is available even when the datapath pointer is not, both
before and after taking a lock, which makes further critical section
reduction possible.
Make ovs_flow_cmd_alloc_info() take an 'acts' argument instead a
'flow' pointer. This allows some future patches to do the allocation
before acquiring the flow pointer.
The locking requirements after this patch are:
ovs_flow_cmd_alloc_info(): May be called without locking, must not be
called while holding the RCU read lock (due to memory allocation).
If 'acts' belong to a flow in the flow table, however, then the
caller must hold ovs_mutex.
ovs_flow_cmd_fill_info(): Either ovs_mutex or RCU read lock must be held.
ovs_flow_cmd_build_info(): This calls both of the above, so the caller
must hold ovs_mutex.
Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
|
| 6093ae9abac18871afd0bbc5cf093dff53112fcb |
|
05-May-2014 |
Jarno Rajahalme <jrajahalme@nicira.com> |
openvswitch: Minimize dp and vport critical sections.
Move most memory allocations away from the ovs_mutex critical
sections. vport allocations still happen while the lock is taken, as
changing that would require major refactoring. Also, vports are
created very rarely so it should not matter.
Change ovs_dp_cmd_get() now only takes the rcu_read_lock(), rather
than ovs_lock(), as nothing need to be changed. This was done by
ovs_vport_cmd_get() already.
Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
|
| fb5d1e9e127ad1542e5db20cd8620a1509baef69 |
|
05-May-2014 |
Jarno Rajahalme <jrajahalme@nicira.com> |
openvswitch: Build flow cmd netlink reply only if needed.
Use netlink_has_listeners() and NLM_F_ECHO flag to determine if a
reply is needed or not for OVS_FLOW_CMD_NEW, OVS_FLOW_CMD_SET, or
OVS_FLOW_CMD_DEL. Currently, OVS userspace does not request a reply
for OVS_FLOW_CMD_NEW, but usually does for OVS_FLOW_CMD_DEL, as stats
may have changed.
Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
|
| bb6f9a708d4067713afae2e9eb2637f6b4c01ecb |
|
05-May-2014 |
Jarno Rajahalme <jrajahalme@nicira.com> |
openvswitch: Clarify locking.
Remove unnecessary locking from functions that are always called with
appropriate locking.
Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Signed-off-by: Thomas Graf <tgraf@redhat.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
|
| be52c9e96a6657d117bb0ec6e11438fb246af5c7 |
|
05-May-2014 |
Jarno Rajahalme <jrajahalme@nicira.com> |
openvswitch: Avoid assigning a NULL pointer to flow actions.
Flow SET can accept an empty set of actions, with the intended
semantics of leaving existing actions unmodified. This seems to have
been brokin after OVS 1.7, as we have assigned the flow's actions
pointer to NULL in this case, but we never check for the NULL pointer
later on. This patch restores the intended behavior and documents it
in the include/linux/openvswitch.h.
Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
|
| 23dabf88abb48a866fdb19ee08ebcf1ddd9b1840 |
|
27-Mar-2014 |
Jarno Rajahalme <jrajahalme@nicira.com> |
openvswitch: Remove 5-tuple optimization.
The 5-tuple optimization becomes unnecessary with a later per-NUMA
node stats patch. Remove it first to make the changes easier to
grasp.
Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 36d5fe6a000790f56039afe26834265db0a3ad4c |
|
26-Mar-2014 |
Zoltan Kiss <zoltan.kiss@citrix.com> |
core, nfqueue, openvswitch: Orphan frags in skb_zerocopy and handle errors
skb_zerocopy can copy elements of the frags array between skbs, but it doesn't
orphan them. Also, it doesn't handle errors, so this patch takes care of that
as well, and modify the callers accordingly. skb_tx_error() is also added to
the callers so they will signal the failed delivery towards the creator of the
skb.
Signed-off-by: Zoltan Kiss <zoltan.kiss@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 57a7744e09867ebcfa0ccf1d6d529caa7728d552 |
|
14-Mar-2014 |
Eric W. Biederman <ebiederm@xmission.com> |
net: Replace u64_stats_fetch_begin_bh to u64_stats_fetch_begin_irq
Replace the bh safe variant with the hard irq safe variant.
We need a hard irq safe variant to deal with netpoll transmitting
packets from hard irq context, and we need it in most if not all of
the places using the bh safe variant.
Except on 32bit uni-processor the code is exactly the same so don't
bother with a bh variant, just have a hard irq safe variant that
everyone can use.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 42ee19e2939277a5277c307e517ce2d7ba5f0703 |
|
16-Feb-2014 |
Jarno Rajahalme <jrajahalme@nicira.com> |
openvswitch: Fix race.
ovs_vport_cmd_dump() did rcu_read_lock() only after getting the
datapath, which could have been deleted in between. Resolved by
taking rcu_read_lock() before the get_dp() call.
Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
|
| 3c7eacfc8a9a4c2bd48e0093c4f43cf69afd5210 |
|
14-Feb-2014 |
Jiri Pirko <jiri@resnulli.us> |
ovs: fix dp check in ovs_dp_reset_user_features
This fixes crash when userspace does "ovs-dpctl add-dp dev" where dev is
existing non-dp netdevice.
Introduced by:
commit 44da5ae5fbea4686f667dc854e5ea16814e44c59
"openvswitch: Drop user features if old user space attempted to create datapath"
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| df9d9fdf8fdad710949ce52a403684c991ced29b |
|
15-Feb-2014 |
WANG Cong <xiyou.wangcong@gmail.com> |
openvswitch: rename ->sync to ->syncp
Openvswitch defines u64_stats_sync as ->sync rather than ->syncp,
so fails to compile with netdev_alloc_pcpu_stats(). So just rename it to ->syncp.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Fixes: 1c213bd24ad04f4430031 (net: introduce netdev_alloc_pcpu_stats() for drivers)
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 1c213bd24ad04f4430031d20d740d7783162b099 |
|
13-Feb-2014 |
WANG Cong <xiyou.wangcong@gmail.com> |
net: introduce netdev_alloc_pcpu_stats() for drivers
There are many drivers calling alloc_percpu() to allocate pcpu stats
and then initializing ->syncp. So just introduce a helper function for them.
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| c14e0953ca51dbcb8d1ac92acbdcff23d0caa158 |
|
03-Feb-2014 |
Andy Zhou <azhou@nicira.com> |
openvswitch: Suppress error messages on megaflow updates
With subfacets, we'd expect megaflow updates message to carry
the original micro flow. If not, EINVAL is returned and kernel
logs an error message. Now that the user space subfacet layer is
removed, it is expected that flow updates can arrive with a
micro flow other than the original. Change the return code to
EEXIST and remove the kernel error log message.
Reported-by: Ben Pfaff <blp@nicira.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 45fb9c35b27c9982e9a55d04ed0a5230a2d0b306 |
|
23-Jan-2014 |
Daniele Di Proietto <daniele.di.proietto@gmail.com> |
openvswitch: Fix ovs_dp_cmd_msg_size()
commit 43d4be9cb55f3bac5253e9289996fd9d735531db (openvswitch: Allow user space
to announce ability to accept unaligned Netlink messages) introduced
OVS_DP_ATTR_USER_FEATURES netlink attribute in datapath responses,
but the attribute size was not taken into account in ovs_dp_cmd_msg_size().
Signed-off-by: Daniele Di Proietto <daniele.di.proietto@gmail.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| e80857cce82da31e41a6599fc888dfc92e0167cc |
|
21-Jan-2014 |
Andy Zhou <azhou@nicira.com> |
openvswitch: Fix kernel panic on ovs_flow_free
Both mega flow mask's reference counter and per flow table mask list
should only be accessed when holding ovs_mutex() lock. However
this is not true with ovs_flow_table_flush(). The patch fixes this bug.
Reported-by: Joe Stringer <joestringer@nicira.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| aea0bb4f8ee513537ad84b9f3f609f96e272d98e |
|
14-Jan-2014 |
Thomas Graf <tgraf@suug.ch> |
openvswitch: Pad OVS_PACKET_ATTR_PACKET if linear copy was performed
While the zerocopy method is correctly omitted if user space
does not support unaligned Netlink messages. The attribute is
still not padded correctly as skb_zerocopy() will not ensure
padding and the attribute size is no longer pre calculated
though nla_reserve() which ensured padding previously.
This patch applies appropriate padding if a linear data copy
was performed in skb_zerocopy().
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Zoltan Kiss <zoltan.kiss@citrix.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 443cd88c8a31379e95326428bbbd40af25c1d440 |
|
17-Dec-2013 |
Stephen Hemminger <stephen@networkplumber.org> |
ovs: make functions local
Several functions and datastructures could be local
Found with 'make namespacecheck'
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 09c5e6054e206ecf13945f50711856a5cb2d5de1 |
|
13-Dec-2013 |
Thomas Graf <tgraf@suug.ch> |
openvswitch: Compute checksum in skb_gso_segment() if needed
The copy & csum optimization is no longer present with zerocopy
enabled. Compute the checksum in skb_gso_segment() directly by
dropping the HW CSUM capability from the features passed in.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| bda56f143c9dc38ae7926ba21ebeb35359a6c051 |
|
13-Dec-2013 |
Thomas Graf <tgraf@suug.ch> |
openvswitch: Use skb_zerocopy() for upcall
Use of skb_zerocopy() can avoid the expensive call to memcpy()
when copying the packet data into the Netlink skb. Completes
checksum through skb_checksum_help() if not already done in
GSO segmentation.
Zerocopy is only performed if user space supported unaligned
Netlink messages. memory mapped netlink i/o is preferred over
zerocopy if it is set up.
Cost of upcall is significantly reduced from:
+ 7.48% vhost-8471 [k] memcpy
+ 5.57% ovs-vswitchd [k] memcpy
+ 2.81% vhost-8471 [k] csum_partial_copy_generic
to:
+ 5.72% ovs-vswitchd [k] memcpy
+ 3.32% vhost-5153 [k] memcpy
+ 0.68% vhost-5153 [k] skb_zerocopy
(megaflows disabled)
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 8055a89cfa533f70bea5970727a50e220bb7d18e |
|
13-Dec-2013 |
Thomas Graf <tgraf@suug.ch> |
openvswitch: Pass datapath into userspace queue functions
Allows removing the net and dp_ifindex argument and simplify the
code.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 44da5ae5fbea4686f667dc854e5ea16814e44c59 |
|
13-Dec-2013 |
Thomas Graf <tgraf@suug.ch> |
openvswitch: Drop user features if old user space attempted to create datapath
Drop user features if an outdated user space instance that does not
understand the concept of user_features attempted to create a new
datapath.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 43d4be9cb55f3bac5253e9289996fd9d735531db |
|
13-Dec-2013 |
Thomas Graf <tgraf@suug.ch> |
openvswitch: Allow user space to announce ability to accept unaligned Netlink messages
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Reviewed-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| e298e505700604c97e6a9edb21cebb080bdb91f6 |
|
30-Oct-2013 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Per cpu flow stats.
With mega flow implementation ovs flow can be shared between
multiple CPUs which makes stats updates highly contended
operation. This patch uses per-CPU stats in cases where a flow
is likely to be shared (if there is a wildcard in the 5-tuple
and therefore likely to be spread by RSS). In other situations,
it uses the current strategy, saving memory and allocation time.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 795449d8b846a42d11d47d6ff2f51ab2967411c3 |
|
30-Nov-2013 |
Thomas Graf <tgraf@suug.ch> |
openvswitch: Enable memory mapped Netlink i/o
Use memory mapped Netlink i/o for all unicast openvswitch
communication if a ring has been set up.
Benchmark
* pktgen -> ovs internal port
* 5M pkts, 5M flows
* 4 threads, 8 cores
Before:
Result: OK: 67418743(c67108212+d310530) usec, 5000000 (9000byte,0frags)
74163pps 5339Mb/sec (5339736000bps) errors: 0
+ 2.98% ovs-vswitchd [k] copy_user_generic_string
+ 2.49% ovs-vswitchd [k] memcpy
+ 1.84% kpktgend_2 [k] memcpy
+ 1.81% kpktgend_1 [k] memcpy
+ 1.81% kpktgend_3 [k] memcpy
+ 1.78% kpktgend_0 [k] memcpy
After:
Result: OK: 24229690(c24127165+d102524) usec, 5000000 (9000byte,0frags)
206358pps 14857Mb/sec (14857776000bps) errors: 0
+ 2.80% ovs-vswitchd [k] memcpy
+ 1.31% kpktgend_2 [k] memcpy
+ 1.23% kpktgend_0 [k] memcpy
+ 1.09% kpktgend_1 [k] memcpy
+ 1.04% kpktgend_3 [k] memcpy
+ 0.96% ovs-vswitchd [k] copy_user_generic_string
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Reviewed-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 663efa3696232300a8ad3a46bb10482fc0b861cf |
|
03-Dec-2013 |
Jesse Gross <jesse@nicira.com> |
openvswitch: Silence RCU lockdep checks from flow lookup.
Flow lookup can happen either in packet processing context or userspace
context but it was annotated as requiring RCU read lock to be held. This
also allows OVS mutex to be held without causing warnings.
Reported-by: Justin Pettit <jpettit@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
Reviewed-by: Thomas Graf <tgraf@redhat.com>
|
| 5bb506324d150578afadd10c3198ef5b29f5876b |
|
25-Nov-2013 |
Andy Zhou <azhou@nicira.com> |
openvswitch: Change ovs_flow_tbl_lookup_xx() APIs
API changes only for code readability. No functional chnages.
This patch removes the underscored version. Added a new API
ovs_flow_tbl_lookup_stats() that returns the n_mask_hits.
Reported by: Ben Pfaff <blp@nicira.com>
Reviewed-by: Thomas Graf <tgraf@redhat.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 2a94fe48f32ccf7321450a2cc07f2b724a444e5b |
|
19-Nov-2013 |
Johannes Berg <johannes.berg@intel.com> |
genetlink: make multicast groups const, prevent abuse
Register generic netlink multicast groups as an array with
the family and give them contiguous group IDs. Then instead
of passing the global group ID to the various functions that
send messages, pass the ID relative to the family - for most
families that's just 0 because the only have one group.
This avoids the list_head and ID in each group, adding a new
field for the mcast group ID offset to the family.
At the same time, this allows us to prevent abusing groups
again like the quota and dropmon code did, since we can now
check that a family only uses a group it owns.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 68eb55031da7c967d954e5f9415cd05f4abdb692 |
|
19-Nov-2013 |
Johannes Berg <johannes.berg@intel.com> |
genetlink: pass family to functions using groups
This doesn't really change anything, but prepares for the
next patch that will change the APIs to pass the group ID
within the family, rather than the global group ID.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 62b68e99faa802352e9cb2ae91adecd8dfddf1b8 |
|
19-Nov-2013 |
Johannes Berg <johannes.berg@intel.com> |
genetlink: add and use genl_set_err()
Add a static inline to generic netlink to wrap netlink_set_err()
to make it easier to use here - use it in openvswitch (the only
generic netlink user of netlink_set_err()).
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| c53ed7423619b4e8108914a9f31b426dd58ad591 |
|
19-Nov-2013 |
Johannes Berg <johannes.berg@intel.com> |
genetlink: only pass array to genl_register_family_with_ops()
As suggested by David Miller, make genl_register_family_with_ops()
a macro and pass only the array, evaluating ARRAY_SIZE() in the
macro, this is a little safer.
The openvswitch has some indirection, assing ops/n_ops directly in
that code. This might ultimately just assign the pointers in the
family initializations, saving the struct genl_family_and_ops and
code (once mcast groups are handled differently.)
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 4534de8305b3f1460a527a0cda0e3dc2224c6f0c |
|
14-Nov-2013 |
Johannes Berg <johannes.berg@intel.com> |
genetlink: make all genl_ops users const
Now that genl_ops are no longer modified in place when
registering, they can be made const. This patch was done
mostly with spatch:
@@
identifier ops;
@@
+const
struct genl_ops ops[] = {
...
};
(except the struct thing in net/openvswitch/datapath.c)
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 827da44c61419f29ae3be198c342e2147f1a10cb |
|
08-Oct-2013 |
John Stultz <john.stultz@linaro.org> |
net: Explicitly initialize u64_stats_sync structures for lockdep
In order to enable lockdep on seqcount/seqlock structures, we
must explicitly initialize any locks.
The u64_stats_sync structure, uses a seqcount, and thus we need
to introduce a u64_stats_init() function and use it to initialize
the structure.
This unfortunately adds a lot of fairly trivial initialization code
to a number of drivers. But the benefit of ensuring correctness makes
this worth while.
Because these changes are required for lockdep to be enabled, and the
changes are quite trivial, I've not yet split this patch out into 30-some
separate patches, as I figured it would be better to get the various
maintainers thoughts on how to best merge this change along with
the seqcount lockdep enablement.
Feedback would be appreciated!
Signed-off-by: John Stultz <john.stultz@linaro.org>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: James Morris <jmorris@namei.org>
Cc: Jesse Gross <jesse@nicira.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Mirko Lindner <mlindner@marvell.com>
Cc: Patrick McHardy <kaber@trash.net>
Cc: Roger Luethi <rl@hellgate.ch>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Simon Horman <horms@verge.net.au>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Wensong Zhang <wensong@linux-vs.org>
Cc: netdev@vger.kernel.org
Link: http://lkml.kernel.org/r/1381186321-4906-2-git-send-email-john.stultz@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
|
| df23e9f642830f10c505c8a3d57772ad1238c701 |
|
23-Oct-2013 |
Jarno Rajahalme <jrajahalme@nicira.com> |
openvswitch: Widen TCP flags handling.
Widen TCP flags handling from 7 bits (uint8_t) to 12 bits (uint16_t).
The kernel interface remains at 8 bits, which makes no functional
difference now, as none of the higher bits is currently of interest
to the userspace.
Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 1bd7116f1cb833c998cddb6b188df463342069d8 |
|
22-Oct-2013 |
Andy Zhou <azhou@nicira.com> |
openvswitch: collect mega flow mask stats
Collect mega flow mask stats. ovs-dpctl show command can be used to
display them for debugging and performance tuning.
Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 618ed0c805b64c820279f50732110ab873221c3b |
|
04-Oct-2013 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Simplify mega-flow APIs.
Hides mega-flow implementation in flow_table.c rather than
datapath.c.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| b637e4988c2d689bb43f943a5af0e684a4981159 |
|
04-Oct-2013 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Move mega-flow list out of rehashing struct.
ovs-flow rehash does not touch mega flow list. Following patch
moves it dp struct datapath. Avoid one extra indirection for
accessing mega-flow list head on every packet receive.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| e64457191a259537bbbfaebeba9a8043786af96f |
|
04-Oct-2013 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Restructure datapath.c and flow.c
Over the time datapath.c and flow.c has became pretty large files.
Following patch restructures functionality of component into three
different components:
flow.c: contains flow extract.
flow_netlink.c: netlink flow api.
flow_table.c: flow table api.
This patch restructures code without changing logic.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| e7f133290660d976da8cb20e9bc7310d0cd19341 |
|
17-Sep-2013 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Move flow table rehashing to flow install.
Rehashing in ovs-workqueue can cause ovs-mutex lock contentions
in case of heavy flow setups where both needs ovs-mutex. So by
moving rehashing to flow-setup we can eliminate contention.
This also simplify ovs locking and reduces dependence on
workqueue.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| a175a723301a8a4a9fedf9ce5b8ca586e7a97b40 |
|
22-Aug-2013 |
Joe Stringer <joe@wand.net.nz> |
openvswitch: Add SCTP support
This patch adds support for rewriting SCTP src,dst ports similar to the
functionality already available for TCP/UDP.
Rewriting SCTP ports is expensive due to double-recalculation of the
SCTP checksums; this is performed to ensure that packets traversing OVS
with invalid checksums will continue to the destination with any
checksum corruption intact.
Reviewed-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Joe Stringer <joe@wand.net.nz>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 03f0d916aa0317592dda11bd17c7357858719b6c |
|
08-Aug-2013 |
Andy Zhou <azhou@nicira.com> |
openvswitch: Mega flow implementation
Add wildcarded flow support in kernel datapath.
Wildcarded flow can improve OVS flow set up performance by avoid sending
matching new flows to the user space program. The exact performance boost
will largely dependent on wildcarded flow hit rate.
In case all new flows hits wildcard flows, the flow set up rate is
within 5% of that of linux bridge module.
Pravin has made significant contributions to this patch. Including API
clean ups and bug fixes.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 59a35d60af3ab80037ad2fa2d60671ce2818b9e4 |
|
31-Jul-2013 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Use RCU lock for dp dump operation.
RCUfy dp-dump operation which is already read-only. This
makes all ovs dump operations lockless.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| d57170b1b1d71382a0d9cf31b01364a97add3f19 |
|
31-Jul-2013 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Use RCU lock for flow dump operation.
Flow dump operation is read-only operation. There is no need to
take ovs-lock. Following patch use rcu-lock for dumping flows.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 30444e981ba28e892c439017fbc011d867f02a7d |
|
13-May-2013 |
Jesse Gross <jesse@nicira.com> |
openvswitch: Fix bad merge resolution.
git silently included an extra hunk in vport_cmd_set() during
automatic merging. This code is unreachable so it does not actually
introduce a problem but it is clearly incorrect.
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| a3e82996a8874c4cfe8c7f1be4d552018d8cba7e |
|
18-Jun-2013 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Optimize flow key match for non tunnel flows.
Following patch adds start offset for sw_flow-key, so that we can
skip tunneling information in key for non-tunnel flows.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 7d5437c709ded4f152cb8b305d17972d6707f20c |
|
18-Jun-2013 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Add tunneling interface.
Add ovs tunnel interface for set tunnel action for userspace.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 74f84a5726c7d08c27745305e67474b8645c541d |
|
18-Jun-2013 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Copy individual actions.
Rather than validating actions and then copying all actiaons
in one block, following patch does same operation in single pass.
This validate and copy action one by one. This is required for
ovs tunneling patch.
This patch does not change any functionality.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 93d8fd1514b6862c3370ea92be3f3b4216e0bf8f |
|
13-Jun-2013 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Simplify interface ovs_flow_metadata_from_nlattrs()
This is not functional change, this is just code cleanup.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| f44f340883388b57fe03edfb0982e038e57a992c |
|
13-May-2013 |
Jesse Gross <jesse@nicira.com> |
openvswitch: Immediately exit on error in ovs_vport_cmd_set().
It is an error to try to change the type of a vport using the set
command. However, while we check that this is an error, we still
proceed to allocate memory which then gets freed immediately.
This stops processing after noticing the error, which does not
actually fix a bug but is more correct.
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| cff63a52924c6a78fa525c67d81480c85736ff3c |
|
29-Apr-2013 |
Thomas Graf <tgraf@suug.ch> |
openvswitch: Remove unneeded ovs_netdev_get_ifindex()
The only user is get_dpifindex(), no need to redirect via the port
operations.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 3a4e0d6a95b2b6f7b22eb7c7361a0fc4289478eb |
|
23-Apr-2013 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Use parallel_ops genl.
OVS locking was recently changed to have private OVS lock which
simplified overall locking. Therefore there is no need to have
another global genl lock to protect OVS data structures. Following
patch uses of parallel_ops genl family for OVS. This also allows
more granual OVS locking using ovs_mutex for protecting OVS data
structures, which gives more concurrencey. E.g multiple genl
operations OVS_PACKET_CMD_EXECUTE can run in parallel, etc.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 86a9bad3ab6b6f858fd4443b48738cabbb6d094c |
|
19-Apr-2013 |
Patrick McHardy <kaber@trash.net> |
net: vlan: add protocol argument to packet tagging functions
Add a protocol argument to the VLAN packet tagging functions. In case of HW
tagging, we need that protocol available in the ndo_start_xmit functions,
so it is stored in a new field in the skb. The new field fits into a hole
(on 64 bit) and doesn't increase the sks's size.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 8e4e1713e4978447c5f799aa668dcc6d2cb0dee9 |
|
15-Apr-2013 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Simplify datapath locking.
Currently OVS uses combination of genl and rtnl lock to protect
datapath state. This was done due to networking stack locking.
But this has complicated locking and there are few lock ordering
issues with new tunneling protocols.
Following patch simplifies locking by introducing new ovs mutex
and now this lock is used to protect entire ovs state.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| ed661185859cecfcbe3a0e585563525498b3f405 |
|
29-Mar-2013 |
Thomas Graf <tgraf@suug.ch> |
openvswitch: Move common genl notify code into ovs_notify()
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| c3ff8cfe3e7748a93c4815b76e464d54c7efd241 |
|
29-Mar-2013 |
Thomas Graf <tgraf@suug.ch> |
openvswitch: Refine Netlink message size calculation and kill FLOW_BUFSIZE
Kills the FLOW_BUFSIZE constant which needs to be calculated manually
and replaces it with key_attr_size() based on nla_total_size().
Calculates the size of datapath messages instead of relying on
NLMSG_DEFAULT_SIZE and moves the existing message size calculations
into own functions for clarity.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 32686a9d2988516788cfcc402e1355c1eba1186a |
|
29-Mar-2013 |
Thomas Graf <tgraf@suug.ch> |
openvswitch: Use nla_memcpy() to memcpy() data from attributes
Less error prone as it takes into account the length of both the
destination buffer and the source attribute and documents when
data is copied from an attribute.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| dded45fc179a07f4463ce37fc376977568655836 |
|
29-Mar-2013 |
Thomas Graf <tgraf@suug.ch> |
openvswitch: Specify the minimal length of OVS_PACKET_ATTR_PACKET in the policy
Specifying the minimal length in the policy makes it reuseable
and documents the interface.
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| e5c5d22e8dcf7c2d430336cbf8e180bd38e8daf1 |
|
28-Mar-2013 |
Simon Horman <horms@verge.net.au> |
net: add ETH_P_802_3_MIN
Add a new constant ETH_P_802_3_MIN, the minimum ethernet type for
an 802.3 frame. Frames with a lower value in the ethernet type field
are Ethernet II.
Also update all the users of this value that David Miller and
I could find to use the new constant.
Also correct a bug in util.c. The comparison with ETH_P_802_3_MIN
should be >= not >.
As suggested by Jesse Gross.
Compile tested only.
Cc: David Miller <davem@davemloft.net>
Cc: Jesse Gross <jesse@nicira.com>
Cc: Karsten Keil <isdn@linux-pingi.de>
Cc: John W. Linville <linville@tuxdriver.com>
Cc: Johannes Berg <johannes@sipsolutions.net>
Cc: Bart De Schuymer <bart.de.schuymer@pandora.be>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: Patrick McHardy <kaber@trash.net>
Cc: Marcel Holtmann <marcel@holtmann.org>
Cc: Gustavo Padovan <gustavo@padovan.org>
Cc: Johan Hedberg <johan.hedberg@gmail.com>
Cc: linux-bluetooth@vger.kernel.org
Cc: netfilter-devel@vger.kernel.org
Cc: bridge@lists.linux-foundation.org
Cc: linux-wireless@vger.kernel.org
Cc: linux1394-devel@lists.sourceforge.net
Cc: linux-media@vger.kernel.org
Cc: netdev@vger.kernel.org
Cc: dev@openvswitch.org
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Simon Horman <horms@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| a9341512c372fcc628dabc619898d910a06c54bc |
|
26-Mar-2013 |
Jesse Gross <jesse@nicira.com> |
openvswitch: Preallocate reply skb in ovs_vport_cmd_set().
Allocation of the Netlink notification skb can potentially fail
after changing vport configuration. In general, we try to avoid
this by undoing any change we made but that is difficult for existing
objects. This avoids the problem by preallocating the buffer (which
is fixed size).
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| b67bfe0d42cac56c512dd5da4b1b347a23f4b70a |
|
28-Feb-2013 |
Sasha Levin <sasha.levin@oracle.com> |
hlist: drop the node parameter from iterators
I'm not sure why, but the hlist for each entry iterators were conceived
list_for_each_entry(pos, head, member)
The hlist ones were greedy and wanted an extra parameter:
hlist_for_each_entry(tpos, pos, head, member)
Why did they need an extra pos parameter? I'm not quite sure. Not only
they don't really need it, it also prevents the iterator from looking
exactly like the list iterator, which is unfortunate.
Besides the semantic patch, there was some manual work required:
- Fix up the actual hlist iterators in linux/list.h
- Fix up the declaration of other iterators based on the hlist ones.
- A very small amount of places were using the 'node' parameter, this
was modified to use 'obj->member' instead.
- Coccinelle didn't handle the hlist_for_each_entry_safe iterator
properly, so those had to be fixed up manually.
The semantic patch which is mostly the work of Peter Senna Tschudin is here:
@@
iterator name hlist_for_each_entry, hlist_for_each_entry_continue, hlist_for_each_entry_from, hlist_for_each_entry_rcu, hlist_for_each_entry_rcu_bh, hlist_for_each_entry_continue_rcu_bh, for_each_busy_worker, ax25_uid_for_each, ax25_for_each, inet_bind_bucket_for_each, sctp_for_each_hentry, sk_for_each, sk_for_each_rcu, sk_for_each_from, sk_for_each_safe, sk_for_each_bound, hlist_for_each_entry_safe, hlist_for_each_entry_continue_rcu, nr_neigh_for_each, nr_neigh_for_each_safe, nr_node_for_each, nr_node_for_each_safe, for_each_gfn_indirect_valid_sp, for_each_gfn_sp, for_each_host;
type T;
expression a,c,d,e;
identifier b;
statement S;
@@
-T b;
<+... when != b
(
hlist_for_each_entry(a,
- b,
c, d) S
|
hlist_for_each_entry_continue(a,
- b,
c) S
|
hlist_for_each_entry_from(a,
- b,
c) S
|
hlist_for_each_entry_rcu(a,
- b,
c, d) S
|
hlist_for_each_entry_rcu_bh(a,
- b,
c, d) S
|
hlist_for_each_entry_continue_rcu_bh(a,
- b,
c) S
|
for_each_busy_worker(a, c,
- b,
d) S
|
ax25_uid_for_each(a,
- b,
c) S
|
ax25_for_each(a,
- b,
c) S
|
inet_bind_bucket_for_each(a,
- b,
c) S
|
sctp_for_each_hentry(a,
- b,
c) S
|
sk_for_each(a,
- b,
c) S
|
sk_for_each_rcu(a,
- b,
c) S
|
sk_for_each_from
-(a, b)
+(a)
S
+ sk_for_each_from(a) S
|
sk_for_each_safe(a,
- b,
c, d) S
|
sk_for_each_bound(a,
- b,
c) S
|
hlist_for_each_entry_safe(a,
- b,
c, d, e) S
|
hlist_for_each_entry_continue_rcu(a,
- b,
c) S
|
nr_neigh_for_each(a,
- b,
c) S
|
nr_neigh_for_each_safe(a,
- b,
c, d) S
|
nr_node_for_each(a,
- b,
c) S
|
nr_node_for_each_safe(a,
- b,
c, d) S
|
- for_each_gfn_sp(a, c, d, b) S
+ for_each_gfn_sp(a, c, d) S
|
- for_each_gfn_indirect_valid_sp(a, c, d, b) S
+ for_each_gfn_indirect_valid_sp(a, c, d) S
|
for_each_host(a,
- b,
c) S
|
for_each_host_safe(a,
- b,
c, d) S
|
for_each_mesh_entry(a,
- b,
c, d) S
)
...+>
[akpm@linux-foundation.org: drop bogus change from net/ipv4/raw.c]
[akpm@linux-foundation.org: drop bogus hunk from net/ipv6/raw.c]
[akpm@linux-foundation.org: checkpatch fixes]
[akpm@linux-foundation.org: fix warnings]
[akpm@linux-foudnation.org: redo intrusive kvm changes]
Tested-by: Peter Senna Tschudin <peter.senna@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
| a15ff76c955d17cf58313097e4a24124da022b1d |
|
15-Feb-2013 |
Rich Lane <rlane@bigswitch.com> |
openvswitch: Call genlmsg_end in queue_userspace_packet
Without genlmsg_end the upcall message ends (according to nlmsg_len)
after the struct ovs_header.
Signed-off-by: Rich Lane <rlane@bigswitch.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| cb7c5bdffb727a3d4dea5247d9d1d52238b01d90 |
|
08-Feb-2013 |
Rich Lane <rlane@bigswitch.com> |
openvswitch: Fix ovs_vport_cmd_new return value on success
If the pointer does not represent an error then the PTR_ERR
macro may still return a nonzero value.
Signed-off-by: Rich Lane <rlane@bigswitch.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 734907e82d21a75a514b80164185427a832a00c0 |
|
08-Feb-2013 |
Rich Lane <rlane@bigswitch.com> |
openvswitch: Fix ovs_vport_cmd_del return value on success
If the pointer does not represent an error then the PTR_ERR macro may still
return a nonzero value. The fix is the same as in ovs_vport_cmd_set.
Signed-off-by: Rich Lane <rlane@bigswitch.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 4490108b4a5ada14c7be712260829faecc814ae5 |
|
16-Feb-2013 |
Ben Pfaff <blp@nicira.com> |
openvswitch: Allow OVS_USERSPACE_ATTR_USERDATA to be variable length.
Until now, the optional OVS_USERSPACE_ATTR_USERDATA attribute had to be
exactly 64 bits long, if it was present. However, 64 bits is not enough
space to associate as much information with a flow as would be convenient
for some userspace features now under development. This commit generalizes
the attribute, allowing it to be any length.
This generalization is backward-compatible: if userspace only uses 64-bit
attributes, then it will not see any change in behavior.
CC: Romain Lenglet <rlenglet@vmware.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 12b0004d1d1e2a9aa667412d479041e403bcafae |
|
05-Feb-2013 |
Cong Wang <amwang@redhat.com> |
net: adjust skb_gso_segment() for calling in rx path
skb_gso_segment() is almost always called in tx path,
except for openvswitch. It calls this function when
it receives the packet and tries to queue it to user-space.
In this special case, the ->ip_summed check inside
skb_gso_segment() is no longer true, as ->ip_summed value
has different meanings on rx path.
This patch adjusts skb_gso_segment() so that we can at least
avoid such warnings on checksum.
Cc: Jesse Gross <jesse@nicira.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 3523b29bd2cd58432ea1bf3629695ec1ab607722 |
|
09-Jan-2013 |
YOSHIFUJI Hideaki / 吉藤英明 <yoshfuji@linux-ipv6.org> |
openvswitch: Use FIELD_SIZEOF() in dp_init().
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 14408dba8440ef629a3a2827bc4c7b5045889295 |
|
09-Jan-2013 |
Jarno Rajahalme <jarno.rajahalme@nsn.com> |
openvswitch: Change ENOENT return value to ENODEV in lookup_vport().
This reduces the number of valid "no such device" error values that
need special attention by the caller.
Userspace code will need to keep on checking for both ENODEV and
ENOENT as long as older kernel modules are around.
Signed-off-by: Jarno Rajahalme <jarno.rajahalme@nsn.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 39c7caebc94e851f58b84b54659156dd30522e8e |
|
26-Nov-2012 |
Ansis Atteka <aatteka@nicira.com> |
openvswitch: add skb mark matching and set action
This patch adds support for skb mark matching and set action.
Signed-off-by: Ansis Atteka <aatteka@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 404f2f1019c0293bd91dc1c03c8557ec97d9d104 |
|
13-Nov-2012 |
Shan Wei <davidshan@tencent.com> |
net: openvswitch: use this_cpu_ptr per-cpu helper
just use more faster this_cpu_ptr instead of per_cpu_ptr(p, smp_processor_id());
Signed-off-by: Shan Wei <davidshan@tencent.com>
Reviewed-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 3fdbd1ce11e5c0d7cafbe44c942c5cad61113d7b |
|
14-Nov-2012 |
Ansis Atteka <aatteka@nicira.com> |
openvswitch: add ipv6 'set' action
This patch adds ipv6 set action functionality. It allows to change
traffic class, flow label, hop-limit, ipv6 source and destination
address fields.
Signed-off-by: Ansis Atteka <aatteka@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 15e473046cb6e5d18a4d0057e61d76315230382b |
|
07-Sep-2012 |
Eric W. Biederman <ebiederm@xmission.com> |
netlink: Rename pid to portid to avoid confusion
It is a frequent mistake to confuse the netlink port identifier with a
process identifier. Try to reduce this confusion by renaming fields
that hold port identifiers portid instead of pid.
I have carefully avoided changing the structures exported to
userspace to avoid changing the userspace API.
I have successfully built an allyesconfig kernel with this change.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 15eac2a74277bc7de68a7c2a64a7c91b4b6f5961 |
|
23-Aug-2012 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Increase maximum number of datapath ports.
Use hash table to store ports of datapath. Allow 64K ports per switch.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 46df7b814548849deee01f50bc75f8f5ae8cd767 |
|
23-Feb-2012 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Add support for network namespaces.
Following patch adds support for network namespace to openvswitch.
Since it must release devices when namespaces are destroyed, a
side effect of this patch is that the module no longer keeps a
refcount but instead cleans up any state when it is unloaded.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 4185392da4b4b494e51934c51b999b4df424afba |
|
07-Aug-2012 |
Jesse Gross <jesse@nicira.com> |
openvswitch: Relax set header validation.
When installing a flow with an action to set a particular field we
need to validate that the packets that are part of the flow actually
contain that header. With IP we use zeroed addresses and with TCP/UDP
the check is for zeroed ports. This check is overly broad and can catch
packets like DHCP requests that have a zero source address in a
legitimate header. This changes the check to look for a zeroed protocol
number for IP or for both ports be zero for TCP/UDP before considering
the header to not exist.
Reported-by: Ethan Jackson <ethan@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| a1b5d0dd28e9cb4fe42ad2df4ebbe5cce96866d7 |
|
20-Jul-2012 |
Ben Pfaff <blp@nicira.com> |
openvswitch: Check gso_type for correct sk_buff in queue_gso_packets().
At the point where it was used, skb_shinfo(skb)->gso_type referred to a
post-GSO sk_buff. Thus, it would always be 0. We want to know the pre-GSO
gso_type, so we need to obtain it before segmenting.
Before this change, the kernel would pass inconsistent data to userspace:
packets for UDP fragments with nonzero offset would be passed along with
flow keys that indicate a zero offset (that is, the flow key for "later"
fragments claimed to be "first" fragments). This inconsistency tended
to confuse Open vSwitch userspace, causing it to log messages about
"failed to flow_del" the flows with "later" fragments.
Signed-off-by: Ben Pfaff <blp@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 92e5dfc34cf39c20ae1087bd5e676238b5d0dfac |
|
20-Jul-2012 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Check currect return value from skb_gso_segment()
Fix return check typo.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 8aa51d64c1f526e43b1e7f89fb8b98c2fd583f4b |
|
13-May-2012 |
Dan Carpenter <dan.carpenter@oracle.com> |
openvswitch: checking wrong variable in queue_userspace_packet()
"skb" is non-NULL here, for example we dereference it in skb_clone().
The intent was to test "nskb" which was just set.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 072ae6314a191e3a9fc309b1e4e539ac7abc48ad |
|
08-May-2012 |
Pravin B Shelar <pshelar@nicira.com> |
openvswitch: Validation of IPv6 set port action uses IPv4 header
When the kernel validates set TCP/UDP port actions, it looks at
the ports in the existing flow to make sure that the L4 header exists.
However, these actions always use the IPv4 version of the struct.
Following patch fixes this by checking for flow ip protocol first.
Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| caf2ee14bbc2c6bd73cf0decf576007e0239a482 |
|
04-May-2012 |
Raju Subramanian <rsubramanian@nicira.com> |
openvswitch: Replace Nicira Networks.
Replaced all instances of Nicira Networks(, Inc) to Nicira, Inc.
Signed-off-by: Raju Subramanian <rsubramanian@nicira.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 4cb6e116bb97c8b87a1f4f95e99d0c8dda2a6e9b |
|
04-May-2012 |
Ansis Atteka <aatteka@nicira.com> |
openvswitch: Release rtnl_lock if ovs_vport_cmd_build_info() failed.
This patch fixes a possible lock-up bug where rtnl_lock might not
get released.
Signed-off-by: Ansis Atteka <aatteka@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 03fbf8b38792448370343f240131d9fde19d0387 |
|
09-Apr-2012 |
Ansis Atteka <aatteka@nicira.com> |
openvswitch: Do not send notification if ovs_vport_set_options() failed
There is no need to send a notification if ovs_vport_set_options() failed
and ovs_vport_cmd_set() did not change anything.
Signed-off-by: Ansis Atteka <aatteka@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 028d6a6767456d6c84a72d3451f19fe7ca7b47db |
|
30-Mar-2012 |
David S. Miller <davem@davemloft.net> |
openvswitch: Stop using NLA_PUT*().
These macros contain a hidden goto, and are thus extremely error
prone and make code hard to audit.
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 9ffc93f203c18a70623f21950f1dd473c9ec48cd |
|
28-Mar-2012 |
David Howells <dhowells@redhat.com> |
Remove all #inclusions of asm/system.h
Remove all #inclusions of asm/system.h preparatory to splitting and killing
it. Performed with the following command:
perl -p -i -e 's!^#\s*include\s*<asm/system[.]h>.*\n!!' `grep -Irl '^#\s*include\s*<asm/system[.]h>' *`
Signed-off-by: David Howells <dhowells@redhat.com>
|
| 651a68ea2ce9738b84e928836053b2e0fb5db2ba |
|
07-Mar-2012 |
Ben Pfaff <blp@nicira.com> |
openvswitch: Honor dp_ifindex, when specified, for vport lookup by name.
When OVS_VPORT_ATTR_NAME is specified and dp_ifindex is nonzero, the
logical behavior would be for the vport name lookup scope to be limited
to the specified datapath, but in fact the dp_ifindex value was ignored.
This commit causes the search scope to be honored.
Signed-off-by: Ben Pfaff <blp@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
|
| 77676fdbd54f0c6fdb71d55d9758bebc69a00fc4 |
|
17-Jan-2012 |
Ben Pfaff <blp@nicira.com> |
openvswitch: Fix multipart datapath dumps.
The logic to split up the list of datapaths into multiple Netlink messages
was simply wrong, causing the list to be terminated after the first part.
Only about the first 50 datapaths would be dumped. This fixes the
problem.
Reported-by: Paul Ingram <paul@nicira.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| 8d9d399f14ea65aeb50c7404e986bceede93bb99 |
|
14-Jan-2012 |
Devendra Naga <devendra.aaru@gmail.com> |
net: remove version.h includes in net/openvswitch/
remove version.h includes in net/openswitch/ as reported by make versioncheck.
Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
| ccb1352e76cff0524e7ccb2074826a092dd13016 |
|
26-Oct-2011 |
Jesse Gross <jesse@nicira.com> |
net: Add Open vSwitch kernel components.
Open vSwitch is a multilayer Ethernet switch targeted at virtualized
environments. In addition to supporting a variety of features
expected in a traditional hardware switch, it enables fine-grained
programmatic extension and flow-based control of the network.
This control is useful in a wide variety of applications but is
particularly important in multi-server virtualization deployments,
which are often characterized by highly dynamic endpoints and the need
to maintain logical abstractions for multiple tenants.
The Open vSwitch datapath provides an in-kernel fast path for packet
forwarding. It is complemented by a userspace daemon, ovs-vswitchd,
which is able to accept configuration from a variety of sources and
translate it into packet processing rules.
See http://openvswitch.org for more information and userspace
utilities.
Signed-off-by: Jesse Gross <jesse@nicira.com>
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