Make the array of labels in struct ovs_key_ct_label an union, adding a
u32 array of the same byte size as the existing u8 array.  It is
faster to loop through the labels 32 bits at the time, which is also
the alignment of netlink attributes.
Signed-off-by: NJarno Rajahalme <jarno@ovn.org>
Acked-by: NJoe Stringer <joe@ovn.org>
Acked-by: NPravin B Shelar <pshelar@ovn.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Receiving change events before the 'new' event for the connection has
been received can be confusing.  Avoid triggering change events for
setting conntrack mark or labels before the conntrack entry has been
confirmed.

Fixes: 182e3042 ("openvswitch: Allow matching on conntrack mark")
Fixes: c2ac6673 ("openvswitch: Allow matching on conntrack label")
Signed-off-by: NJarno Rajahalme <jarno@ovn.org>
Acked-by: NJoe Stringer <joe@ovn.org>
Acked-by: NPravin B Shelar <pshelar@ovn.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The conntrack lookup for existing connections fails to invert the
packet 5-tuple for NATted packets, and therefore fails to find the
existing conntrack entry.  Conntrack only stores 5-tuples for incoming
packets, and there are various situations where a lookup on a packet
that has already been transformed by NAT needs to be made.  Looking up
an existing conntrack entry upon executing packet received from the
userspace is one of them.

This patch fixes ovs_ct_find_existing() to invert the packet 5-tuple
for the conntrack lookup whenever the packet has already been
transformed by conntrack from its input form as evidenced by one of
the NAT flags being set in the conntrack state metadata.

Fixes: 05752523 ("openvswitch: Interface with NAT.")
Signed-off-by: NJarno Rajahalme <jarno@ovn.org>
Acked-by: NJoe Stringer <joe@ovn.org>
Acked-by: NPravin B Shelar <pshelar@ovn.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Fix comments referring to skb 'nfct' and 'nfctinfo' fields now that
they are combined into '_nfct'.
Signed-off-by: NJarno Rajahalme <jarno@ovn.org>
Acked-by: NPravin B Shelar <pshelar@ovn.org>
Acked-by: NJoe Stringer <joe@ovn.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Netanel Belgazal says:

====================
Bug Fixes in ENA driver

Changes from V3:
* Rebase patchset to master and solve merge conflicts.
* Remove redundant bug fix (fix error handling when probe fails)
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NNetanel Belgazal <netanel@annapurnalabs.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Move the host info config to be the first admin command that is executed.
This change require the driver to remove the 'feature check'
from host info configuration flow.
The check is removed since the supported features bitmask field
is retrieved only after calling ENA_ADMIN_DEVICE_ATTRIBUTES admin command.

If set host info is not supported an error will be returned by the device.
Signed-off-by: NNetanel Belgazal <netanel@annapurnalabs.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The timeouts were too agressive and sometimes cause false alarms.
Signed-off-by: NNetanel Belgazal <netanel@annapurnalabs.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NNetanel Belgazal <netanel@annapurnalabs.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Completion descriptors are accessed from the driver and from the device.
To avoid reading the old value, use READ_ONCE macro.
Signed-off-by: NNetanel Belgazal <netanel@annapurnalabs.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Do not unamsk interrupts if we are in busy poll mode.
Signed-off-by: NNetanel Belgazal <netanel@annapurnalabs.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

If the ena driver detects that the device is not behave as expected,
it tries to reset the device.
The reset flow calls ena_down, which will frees all the resources
the driver allocates and then it will reset the device.

This flow can cause memory corruption if the device is still writes
to the driver's memory space.
To overcome this potential race, move the reset before the device
resources are freed.
Signed-off-by: NNetanel Belgazal <netanel@annapurnalabs.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

ndo_get_stat64() can be called from atomic context, but the current
implementation sends an admin command to retrieve the statistics from
the device. This admin command can sleep.

This patch re-factors the implementation of ena_get_stats64() to use
the {rx,tx}bytes/count from the driver's inner counters, and to obtain
the rx drop counter from the asynchronous keep alive (heart bit)
event.
Signed-off-by: NNetanel Belgazal <netanel@annapurnalabs.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

If for some reason the device stops responding, and the device reset
failes to recover the device, the mmio register read data structure
will not be reinitialized.

On driver removal, the driver will also try to reset the device, but
this time the mmio data structure will be NULL.

To solve this issue, perform the device reset in the remove function
only if the device is runnig.

Crash log
   54.240382] BUG: unable to handle kernel NULL pointer dereference at           (null)
[   54.244186] IP: [<ffffffffc067de5a>] ena_com_reg_bar_read32+0x8a/0x180 [ena_drv]
[   54.244186] PGD 0
[   54.244186] Oops: 0002 [#1] SMP
[   54.244186] Modules linked in: ena_drv(OE-) snd_hda_codec_generic kvm_intel kvm crct10dif_pclmul ppdev crc32_pclmul ghash_clmulni_intel aesni_intel snd_hda_intel aes_x86_64 snd_hda_controller lrw gf128mul cirrus glue_helper ablk_helper ttm snd_hda_codec drm_kms_helper cryptd snd_hwdep drm snd_pcm pvpanic snd_timer syscopyarea sysfillrect snd parport_pc sysimgblt serio_raw soundcore i2c_piix4 mac_hid lp parport psmouse floppy
[   54.244186] CPU: 5 PID: 1841 Comm: rmmod Tainted: G           OE 3.16.0-031600-generic #201408031935
[   54.244186] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
[   54.244186] task: ffff880135852880 ti: ffff8800bb640000 task.ti: ffff8800bb640000
[   54.244186] RIP: 0010:[<ffffffffc067de5a>]  [<ffffffffc067de5a>] ena_com_reg_bar_read32+0x8a/0x180 [ena_drv]
[   54.244186] RSP: 0018:ffff8800bb643d50  EFLAGS: 00010083
[   54.244186] RAX: 000000000000deb0 RBX: 0000000000030d40 RCX: 0000000000000003
[   54.244186] RDX: 0000000000000202 RSI: 0000000000000058 RDI: ffffc90000775104
[   54.244186] RBP: ffff8800bb643d88 R08: 0000000000000000 R09: cf00000000000000
[   54.244186] R10: 0000000fffffffe0 R11: 0000000000000001 R12: 0000000000000000
[   54.244186] R13: ffffc90000765000 R14: ffffc90000775104 R15: 00007fca1fa98090
[   54.244186] FS:  00007fca1f1bd740(0000) GS:ffff88013fd40000(0000) knlGS:0000000000000000
[   54.244186] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   54.244186] CR2: 0000000000000000 CR3: 00000000b9cf6000 CR4: 00000000001406e0
[   54.244186] Stack:
[   54.244186]  0000000000000202 0000005800000286 ffffc90000765000 ffffc90000765000
[   54.244186]  ffff880135f6b000 ffff8800b9360000 00007fca1fa98090 ffff8800bb643db8
[   54.244186]  ffffffffc0680b3d ffff8800b93608c0 ffffc90000765000 ffff880135f6b000
[   54.244186] Call Trace:
[   54.244186]  [<ffffffffc0680b3d>] ena_com_dev_reset+0x1d/0x1b0 [ena_drv]
[   54.244186]  [<ffffffffc0678497>] ena_remove+0xa7/0x130 [ena_drv]
[   54.244186]  [<ffffffff813d4df6>] pci_device_remove+0x46/0xc0
[   54.244186]  [<ffffffff814c3b7f>] __device_release_driver+0x7f/0xf0
[   54.244186]  [<ffffffff814c4738>] driver_detach+0xc8/0xd0
[   54.244186]  [<ffffffff814c3969>] bus_remove_driver+0x59/0xd0
[   54.244186]  [<ffffffff814c4fde>] driver_unregister+0x2e/0x60
[   54.244186]  [<ffffffff810f0a80>] ? show_refcnt+0x40/0x40
[   54.244186]  [<ffffffff813d4ec3>] pci_unregister_driver+0x23/0xa0
[   54.244186]  [<ffffffffc068413f>] ena_cleanup+0x10/0xed1 [ena_drv]
[   54.244186]  [<ffffffff810f3a47>] SyS_delete_module+0x157/0x1e0
[   54.244186]  [<ffffffff81014fb7>] ? do_notify_resume+0xc7/0xd0
[   54.244186]  [<ffffffff81793fad>] system_call_fastpath+0x1a/0x1f
[   54.244186] Code: c3 4d 8d b5 04 01 01 00 4c 89 f7 e8 e1 5a 11 c1 48 89 45 c8 41 0f b7 85 00 01 01 00 8d 48 01 66 2d 52 21 66 41 89 8d 00 01 01 00 <66> 41 89 04 24 0f b7 45 d4 89 45 d0 89 c1 41 0f b7 85 00 01 01
[   54.244186] RIP  [<ffffffffc067de5a>] ena_com_reg_bar_read32+0x8a/0x180 [ena_drv]
[   54.244186]  RSP <ffff8800bb643d50>
[   54.244186] CR2: 0000000000000000
[   54.244186] ---[ end trace 18dd9889b6497810 ]---
Signed-off-by: NNetanel Belgazal <netanel@annapurnalabs.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

ENA default hash configures IPv4_frag hash twice instead of
configure non-IP packets.

The bug caused IPv4 fragmented packets to be calculated based on
L2 source and destination address instead of L3 source and destination.
IPv4 packets can reach to the wrong Rx queue.
Signed-off-by: NNetanel Belgazal <netanel@annapurnalabs.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

ena_flow_data_to_flow_hash and ena_flow_hash_to_flow_type
treat the ena_flow_hash_to_flow_type enum as power of two values.

Change the values of ena_admin_flow_hash_fields to be power of two values.

This bug effect the ethtool set/get rxnfc.
ethtool will report wrong values hash fields for get and will
configure wrong hash fields in set.
Signed-off-by: NNetanel Belgazal <netanel@annapurnalabs.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The ENA driver tries to open a queue per vCPU.
To determine how many vCPUs the instance have it uses num_possible_cpus()
while it should have use num_online_cpus() instead.
Signed-off-by: NNetanel Belgazal <netanel@annapurnalabs.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Remove NETIF_F_NTUPLE from netdev->features.
The ENA device driver does not support ntuple filtering.
Signed-off-by: NNetanel Belgazal <netanel@annapurnalabs.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Govindarajulu Varadarajan says:

====================
enic: add vxlan offload support

This series adds vxlan offload support for enic driver. The first
patch adds vxlan devcmd for configuring vxland offload parameters.
Second patch adds ndo_udp_tunnel_add/del and offload on rx path.
There are to modes in which fw supports vxlan offload.

mode 0: fcoe bit is set for encapsulated packet. fcoe_fc_crc_ok is set
if checksum of csum is ok. This bit is or of ip_csum_ok and
tcp_udp_csum_ok

mode 2: BIT(0) in rss_hash is set if it is encapsulated packet.
        BIT(1) is set if outer_ip_csum_ok/
        BIT(2) is set if outer_tcp_csum_ok

Some hw supports only mode 0, some support mode 0 and 2. Driver gets
the supported modes bitmap using get_supported_feature_ver devcmd
and selects the highest mode both driver and fw supports.

Third patch adds offload support on tx path by adding
enic_features_check().

v2: Order local variable declarations from longest to shortest line,
    on all three patches.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Define ndo_features_check. Hw supports offload only for ipv4 inner and
ipv4 outer pkt.

Code refactor for setting inner tcp pseudo csum.
Signed-off-by: NGovindarajulu Varadarajan <gvaradar@cisco.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Defines enic_udp_tunnel_add/del for configuring vxlan tunnel offload.
enic supports offload of only one ipv4/udp port.

There are two modes that fw supports for vxlan offload.

mode 0: fcoe bit is set for encapsulated packet. fcoe_fc_crc_ok is set
if checksum of csum is ok. This bit is or of ip_csum_ok and
tcp_udp_csum_ok

mode 2: BIT(0) in rss_hash is set if it is encapsulated packet.
	BIT(1) is set if outer_ip_csum_ok/
	BIT(2) is set if outer_tcp_csum_ok

tcp_udp_csum_ok/ipv4_csum_ok is set if inner csum is OK.
Signed-off-by: NGovindarajulu Varadarajan <gvaradar@cisco.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch adds devcmds needed for vxlan offload. Implement 3 new devcmd

overlay_offload_ctrl: enable/disable offload
overlay_offload_cfg: update offload udp port number
get_supported_feature_ver: get hw supported offload version. Each
			   version has different bitmap for csum_ok/encap
Signed-off-by: NGovindarajulu Varadarajan <gvaradar@cisco.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Move it out from the middle for the #defines to just before it is
needed.
Signed-off-by: NAndrew Lunn <andrew@lunn.ch>
Reviewed-by: NVivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

While adding switch.o to the list of DSA object files, we essentially
duplicated the previous obj-y line and just added switch.o, remove the
duplicate.

Fixes: f515f192 ("net: dsa: add switch notifier")
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com>
Reviewed-by: NVivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Timur Tabi says:

====================
net: qcom/emac: add the last ethtool functions

These two patches implement the remaining two ethtool functions that
are of interest to the Qualcomm EMAC driver.  These are the last
patches that will be submitted for the 4.11 merge window.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Implement the set_ringparam method, which allows the user to specify
the size of the TX and RX descriptor rings.  The values are constrained
to the limits of the hardware.

Since the driver does not use separate queues for mini or jumbo frames,
attempts to set those values are rejected.

If the interface is already running when the setting is changed, then
the interface is reset.
Signed-off-by: NTimur Tabi <timur@codeaurora.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Implement the get_regs_len and get_regs ethtool methods.  The driver
returns the values of selected hardware registers.

The make the register offsets known to emac_ethtool, the the register
offset macros are all combined into one header file.  They were
inexplicably and arbitrarily split between two files.
Signed-off-by: NTimur Tabi <timur@codeaurora.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

The other instances of this structure got removed along with the MDIO
device change, but this one was left behind and needs to be removed
as well:

arch/arm/mach-orion5x/wnr854t-setup.c:109:44: error: 'wnr854t_switch_plat_data' defined but not used [-Werror=unused-variable]
 static struct dsa_platform_data __initdata wnr854t_switch_plat_data = {

Fixes: 575e93f7 ("ARM: orion: Register DSA switch as a MDIO device")
Signed-off-by: NArnd Bergmann <arnd@arndb.de>
Acked-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Xin Long says:

====================
sctp: add sender-side procedures for stream reconf asoc reset and add streams

Patch 4/6 is to implement sender-side procedures for the SSN/TSN Reset
Request Parameter described in rfc6525 section 5.1.4, patch 3/6 is
ahead of it to define a function to make the request chunk for it.

Patch 6/6 is to implement sender-side procedures for the Add Incoming
and Outgoing Streams Request Parameter Request Parameter described in
rfc6525 section 5.1.5 and 5.1.6, patch 5/6 is ahead of it to define a
function to make the request chunk for it.

Patch 2/6 is a fix to recover streams states when it fails to send
request and Patch 1/6 is to drop some unncessary __packed from some
old structures.

v1->v2:
  - put these into a smaller group.
  - rename some temporary variables in the codes.
  - rename the titles of the commits and improve some changelogs.
v2->v3:
  - re-split the patchset and make sure it has no dead codes for review.
  - move some codes into stream.c from socket.c.
v3->v4:
  - add one more patch to fix a send reset stream request issue.
  - doing actual work only when request is sent successfully.
  - reduce some indents in sctp_send_add_streams.
v4->v5:
  - close streams before sending request and recover them when sending
    fails in patch 1/5 and patch 3/5
v5->v6:
  - add patch 1/6 to drop some unncessary __packed from some old structures.
  - remove __packed from some new structures in patch 3/6 and 5/6.
  - define unsigned int outcnt and incnt to make codes smaller in patch 6/6.
  - use krealloc instead of kcalloc and remove ksize check in patch 6/6, as
    ksize check is acutally used in krealloc already.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch is to implement Sender-Side Procedures for the Add
Outgoing and Incoming Streams Request Parameter described in
rfc6525 section 5.1.5-5.1.6.

It is also to add sockopt SCTP_ADD_STREAMS in rfc6525 section
6.3.4 for users.
Signed-off-by: NXin Long <lucien.xin@gmail.com>
Acked-by: NMarcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch is to define Add Incoming/Outgoing Streams Request
Parameter described in rfc6525 section 4.5 and 4.6. They can
be in one same chunk trunk as rfc6525 section 3.1-7 describes,
so make them in one function.
Signed-off-by: NXin Long <lucien.xin@gmail.com>
Acked-by: NMarcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch is to implement Sender-Side Procedures for the SSN/TSN
Reset Request Parameter descibed in rfc6525 section 5.1.4.

It is also to add sockopt SCTP_RESET_ASSOC in rfc6525 section 6.3.3
for users.
Signed-off-by: NXin Long <lucien.xin@gmail.com>
Acked-by: NMarcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This patch is to define SSN/TSN Reset Request Parameter described
in rfc6525 section 4.3.
Signed-off-by: NXin Long <lucien.xin@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Now when sending stream reset request, it closes the streams to
block further xmit of data until this request is completed, then
calls sctp_send_reconf to send the chunk.

But if sctp_send_reconf returns err, and it doesn't recover the
streams' states back,  which means the request chunk would not be
queued and sent, so the asoc will get stuck, streams are closed
and no packet is even queued.

This patch is to fix it by recovering the streams' states when
it fails to send the request, it is also to fix a return value.

Fixes: 7f9d68ac ("sctp: implement sender-side procedures for SSN Reset Request Parameter")
Signed-off-by: NXin Long <lucien.xin@gmail.com>
Acked-by: NMarcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

commit 85c727b5 ("sctp: drop __packed from almost all SCTP structures")
has removed __packed from almost all SCTP structures. But there still are
three structures where it should be dropped.

This patch is to remove it from some stream reconf structures.
Signed-off-by: NXin Long <lucien.xin@gmail.com>
Acked-by: NMarcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Edward Cree says:

====================
sfc: more encap offloads

This patch series adds support for RX checksum offload of encapsulated packets.
It also adds support for configuring the hardware's lists of UDP ports used for
VXLAN and GENEVE encapsulation offloads.  Since changing these lists causes the
MC to reboot, the driver has been hardened against reboots, which used to be
considered an exceptional occurrence but are now normal.
====================
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Implement ndo_udp_tunnel_{add,del} to update the NIC's list of VXLAN and
 GENEVE UDP ports.  Also reset the port list to empty on driver load and
 on driver unload, with appropriate flag set on the unload case.
These port numbers are used for RX inner checksum offload, and in future
 will also be used for TX inner checksum offload and encapsulated TSO.
Signed-off-by: NEdward Cree <ecree@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

Signed-off-by: NEdward Cree <ecree@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This function wasn't being called in this particular case when the MC
 reboots. This caused resource reallocations to not be handled properly
 and often ended up disabling the interface.
Signed-off-by: NEdward Cree <ecree@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

This is mainly to prepare for a future overlay networking patch that
 could cause an MC reset at probe time if the UDP tunnel port list is
 set immediately upon driver load.
Signed-off-by: NEdward Cree <ecree@solarflare.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>