The device has a trap for IPv6 packets that need be routed and have a
unicast link-local destination IP (i.e., fe80::/10). This allows mlxsw
to ignore link-local routes, as the packets will be trapped to the CPU
in any case.
However, since link-local routes are not programmed, it is possible for
routed packets to hit the default route which might also be programmed
to trap packets. This means that packets with a link-local destination
IP might be trapped for the wrong reason.
To overcome this, allow programming link-local prefix routes (usually
one fe80::/64 per-table), so that the packets will be forwarded until
reaching the link-local trap.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Bidirectional Forwarding Detection (BFD) provides "low-overhead,
short-duration detection of failures in the path between adjacent
forwarding engines" (RFC 5880).
This is accomplished by exchanging BFD packets between the two
forwarding engines. Up until now these packets were trapped via the
general local delivery (i.e., IP2ME) trap which also traps a lot of
other packets that are not as time-sensitive as BFD packets.
Expose dedicated traps for BFD packets so that user space could
configure a dedicated policer for them.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
IPv6 packets that need to be forwarded and have a link-local source IP are
dropped by the kernel and an ICMPv6 "Destination unreachable" is sent to
the sending host.
As such, change the trap group of such packets so that they do not
interfere with IPv6 management packets. In the future this trap will be
exposed as an exception via devlink-trap.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Routed IP packets with the Router Alert option need to be trapped to
the CPU as they might need to be locally delivered to raw sockets with
the IP_ROUTER_ALERT / IPV6_ROUTER_ALERT socket option.
Move them to the same group with other packets that might need to be
trapped following route lookup.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
After the previous patch the split is no longer necessary and all the
trap groups can be moved under the same enum.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
As explained in commit e612523041 ("mlxsw: spectrum_trap: Introduce
dummy group with thin policer"), the purpose of the "thin" policer is to
pass as less packets as possible to the CPU.
The identifier of this policer is currently set according to the maximum
number of used trap groups, but this is fragile: On Spectrum-1 the
maximum number of policers is less than the maximum number of trap
groups, which might result in an invalid policer identifier in case the
number of used trap groups grows beyond the policer limit.
Solve this by dynamically allocating the policer identifier.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The number of Spectrum trap groups is not infinite, but two identifiers
are occupied by SwitchX-2 specific trap groups. Free these identifiers
by moving them out of the main enum.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
To align with recent recommended values. Will be configurable by future
patches.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Packets with an IPv6 link-local destination (i.e., fe80::/10) should not
be forwarded and are therefore trapped to the CPU for local delivery.
Since these packets are trapped for the same logical reason as packets
hitting local routes, associate both traps with the same group.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When a packet enters the device it is classified to a filtering
identifier (FID) based on the ingress port and VLAN. The FID miss trap
is used to trap packets for which a FID could not be found.
In mlxsw this trap should only be triggered when a port is enslaved to
an OVS bridge and a matching ACL rule could not be found, so as to
trigger learning.
These packets are therefore completely unrelated to packets hitting
local routes and should be in a different group. Move them.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Group these various IPv6 packets (e.g., router solicitations, router
advertisement) together and subject them to the same policer.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The IPv6 Neighbour Discovery (ND) group will be used for various IPv6
packets, not all of which fall under the definition of ND, so rename it
to "IPV6" which is more appropriate.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Trap groups that use the same policer settings can share the same switch
case.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Packets that are trapped via tc's trap action are currently subject to
the same policer as packets hitting local routes. The latter are
critical to the correct functioning of the control plane, while the
former are mainly used for traffic inspection.
Split the ACL trap to a separate group with its own policer. Use a
higher priority for these traps than for traps using mirror action
(e.g., ARP, IGMP). Otherwise, packets matching both traps will not be
forwarded in hardware (because of trap action) and also not forwarded in
software because they will be marked with 'offload_fwd_mark'.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Don't call netif_napi_del() manually, free_netdev() does this for us.
In addition reorder calls to match reverse order of calls in probe().
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The commit da722186f6 (net: fec: set GPR bit on suspend by DT
configuration) set the GPR reigster offset and bit in driver for
wake on lan feature.
But it introduces two issues here:
- one SOC has two instances, they have different bit
- different SOCs may have different offset and bit
So to support wake-on-lan feature on other i.MX platforms, it should
configure the GPR reigster offset and bit from DT.
So the patch is to improve the commit da722186f6 (net: fec: set GPR
bit on suspend by DT configuration) to support multiple ethernet
instances on i.MX series.
v2:
* switch back to store the quirks bitmask in driver_data
v3:
* suggested by Sascha Hauer, use a struct fec_devinfo for
abstracting differences between different hardware variants,
it can give more freedom to describe the differences.
Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The current MPLS dissector only parses the first MPLS Label Stack
Entry (second LSE can be parsed too, but only to set a key_id).
This patch adds the possibility to parse several LSEs by making
__skb_flow_dissect_mpls() return FLOW_DISSECT_RET_PROTO_AGAIN as long
as the Bottom Of Stack bit hasn't been seen, up to a maximum of
FLOW_DIS_MPLS_MAX entries.
FLOW_DIS_MPLS_MAX is arbitrarily set to 7. This should be enough for
many practical purposes, without wasting too much space.
To record the parsed values, flow_dissector_key_mpls is modified to
store an array of stack entries, instead of just the values of the
first one. A bit field, "used_lses", is also added to keep track of
the LSEs that have been set. The objective is to avoid defining a
new FLOW_DISSECTOR_KEY_MPLS_XX for each level of the MPLS stack.
TC flower is adapted for the new struct flow_dissector_key_mpls layout.
Matching on several MPLS Label Stack Entries will be added in the next
patch.
The NFP and MLX5 drivers are also adapted: nfp_flower_compile_mac() and
mlx5's parse_tunnel() now verify that the rule only uses the first LSE
and fail if it doesn't.
Finally, the behaviour of the FLOW_DISSECTOR_KEY_MPLS_ENTROPY key is
slightly modified. Instead of recording the first Entropy Label, it
now records the last one. This shouldn't have any consequences since
there doesn't seem to have any user of FLOW_DISSECTOR_KEY_MPLS_ENTROPY
in the tree. We'd probably better do a hash of all parsed MPLS labels
instead (excluding reserved labels) anyway. That'd give better entropy
and would probably also simplify the code. But that's not the purpose
of this patch, so I'm keeping that as a future possible improvement.
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In older FW versions the completion flag was treated as the ack flag in
edpm messages. Expose the FW option of setting which mode the QP is in
by adding a flag to the qedr <-> qed API.
Flag is added for backward compatibility with libqedr.
This flag will be set by qedr after determining whether the libqedr is
using the updated version.
Fixes: f109394033 ("qed: Add support for QP verbs")
Signed-off-by: Yuval Basson <yuval.bason@marvell.com>
Signed-off-by: Michal Kalderon <michal.kalderon@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sync hw config for RTL8168f/RTL8411 with r8168 vendor driver.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sync hw config for RTL8168evl with r8168 vendor driver.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sync hw config for RTL8168h with r8168 vendor driver.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sync hw config for RTL8168g with r8168 vendor driver.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
bnx2x_warpcore_read_sfp_module_eeprom() can call bnx2x_bsc_read()
three times before giving up.
This causes latency blips of at least 31 ms (58 ms being reported
by our teams)
Convert the long lasting loops of udelay() to usleep_range() ones,
and breaks the loops on precise time tracking.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Ariel Elior <aelior@marvell.com>
Cc: Sudarsana Kalluru <skalluru@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
For XDP the MVNETA_SKB_HEADROOM is used as an offset for
the received data.
The MVNETA manual states that the last 3 bits assumed to be 0.
This is currently the case but lets make it explicit in the definition
to prevent future problems.
Signed-off-by: Sven Auhagen <sven.auhagen@voleatech.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix incorrect spelling of "advertisement".
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The rate with which packets are sampled is determined by user space, so
there is no need to associate such packets with a policer.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Both packet types are needed for the same reason (neighbour discovery),
so associate them with the same trap group.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The ARP trap group will be used for IPv6 ND traps in the next patch, so
rename it to "NEIGH_DISCOVERY" which is more appropriate.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Now that traffic class (TC) and priority are set to the same value,
there is no need to store both. Remove the first.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The traffic class (TC) attribute of packet traps determines through which
TC a packet trap will be scheduled through the CPU port.
The priority attribute determines which trap will be triggered in case
several packet traps match a packet.
We try to configure these attributes to the same value for all packet
traps as there is little reason not to.
Some packet traps did not use the same value, so rectify that now.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
As explained in commit 9ffcc3725f ("mlxsw: spectrum: Allow packets to
be trapped from any PG"), incoming packets can be admitted to the shared
buffer and forwarded / trapped, if:
(Ingress{Port}.Usage < Thres && Ingress{Port,PG}.Usage < Thres &&
Egress{Port}.Usage < Thres && Egress{Port,TC}.Usage < Thres)
||
(Ingress{Port}.Usage < Min || Ingress{Port,PG} < Min ||
Egress{Port}.Usage < Min || Egress{Port,TC}.Usage < Min)
Trapped packets are scheduled to transmission through the CPU port.
Currently, the minimum and maximum quotas of traffic class (TC) 0 of the
CPU port are 0, which means it is not usable.
Assign non-zero quotas to TC 0 of the CPU port, so that it could be
utilized by subsequent patches.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Reduce the default acceptable rate of DHCP packets to 128 packets per
second and reduce their priority. This is reasonable given the Spectrum
ASICs are limited to 128 ports at the moment.
These are only the default values. Users will be able to modify them via
devlink-trap.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently, IPv4 DHCP packets are trapped during L2 forwarding, which
means that packets might be trapped unnecessarily. Instead, only trap
the DHCP packets that reach the router. Either because they were flooded
to the router port or forwarded to it by the FDB. This is consistent
with the corresponding IPv6 trap.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Both packet types are needed for the same reason (multicast snooping),
so associate them with the same trap group.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The IGMP trap group will be used for MLD traps in the next patch, so
rename it to "MC_SNOOPING" which is more appropriate.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The MSCC bug fix in 'net' had to be slightly adjusted because the
register accesses are done slightly differently in net-next.
Signed-off-by: David S. Miller <davem@davemloft.net>
Use the new devres variant of register_netdev() in the mtk-star-emac
driver and shrink the code by a couple lines.
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove the mask argument as it's not used by r8168ep_ocp_read().
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
All callers read the full 32bit value, therefore the mask argument can
be removed.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
rtl_eri_read() returns the full 32bit value, therefore there's no
benefit in writing back parts of it only. handle it like the vendor
driver and write the full 32 bit always. Omitting the mask argument
avoids some overhead and makes the code better readable.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove runtime PM usage counter decrement when the
increment function has not been called to keep the
counter balanced.
Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jeff Kirsher says:
====================
100GbE Intel Wired LAN Driver Updates 2020-05-22
This series contains updates to virtchnl and the ice driver.
Geert Uytterhoeven fixes a data structure alignment issue in the
virtchnl structures.
Henry adds Flow Director support which allows for the redirection on
ntuple rules over six patches. Initially Henry adds the initial
infrastructure for Flow Director, and then later adds IPv4 and IPv6
support, as well as being able to display the ntuple rules.
Bret add Accelerated Receive Flow Steering (aRFS) support which is used
to steer receive flows to a specific queue. Fixes a transmit timeout
when the VF link transitions from up/down/up because the transmit and
receive queue interrupts are not enabled as part of VF's link up. Fixed
an issue when the default VF LAN address is changed and after reset the
PF will attempt to add the new MAC, which fails because it already
exists. This causes the VF to be disabled completely until it is removed
and enabled via sysfs.
Anirudh (Ani) makes a fix where the ice driver needs to call set_mac_cfg
to enable jumbo frames, so ensure it gets called during initialization
and after reset. Fix bad register reads during a register dump in
ethtool by removing the bad registers.
Paul fixes an issue where the receive Malicious Driver Detection (MDD)
auto reset message was not being logged because it occurred after the VF
reset.
Victor adds a check for compatibility between the Dynamic Device
Personalization (DDP) package and the NIC firmware to ensure that
everything aligns.
Jesse fixes a administrative queue string call with the appropriate
error reporting variable. Also fixed the loop variables that are
comparing or assigning signed against unsigned values.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jeff Kirsher says:
====================
1GbE Intel Wired LAN Driver Updates 2020-05-22
This series contains updates to e1000e, igc and igb.
Many of the patches in this series are fixes, but many of the igc fixes
are based on the recent filter rule handling Andre has been working,
which will not backport to earlier/stable kernels. The remaining fixes
for e1000e and igb have CC'd stable where applicable.
Andre continue with his refactoring of the filter rule code to help with
reducing the complexity, in multiple patches. Fix the inconsistent size
of a struct field. Fixed an issue where filter rules stay active in the
hardware, even after it was deleted, so make sure to disable the filter
rule before deleting. Fixed an issue with NFC rules which were dropping
valid multicast MAC address. Fixed how the NFC rules are restored after
the NIC is reset or brought up, so that they are restored in the same order
they were initially setup in. Fix a potential memory leak when the
driver is unloaded and the NFC rules are not flushed from memory
properly. Fixed how NFC rule validation handles when a request to
overwrite an existing rule. Changed the locking around the NFC rule API
calls from spin_locks to mutex locks to avoid unnecessary busy waiting
on lock contention.
Sasha clean up more unused code in the igc driver.
Kai-Heng Feng from Canonical provides three fixes, first has igb report
the speed and duplex as unknown when in runtime suspend. Fixed e1000e
to pass up the error when disabling ULP mode. Fixed e1000e performance
by disabling TSO by default for certain MACs.
Vitaly disables S0ix entry and exit flows for ME systems.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
-----BEGIN PGP SIGNATURE-----
iQEzBAABCAAdFiEEGhZs6bAKwk/OTgTpSD+KveBX+j4FAl7IbksACgkQSD+KveBX
+j5T8Af/XT6b23VlSn2Km4tg8WQNDRJLdq1s6fTS5SGcyc0awxfH07cvYvJ26kKW
kmdDNijkVbd0ma2UxHiiD3vmE8Vs85gZ6BDNyl485x/cH3zFzAm54R5fZdnK5JgN
YNgdFP0MOwPtAdDtxLH+r8aOyNKncIOmCZrMNnxVgI+IytG1L5QLnS6GeQy2zyIx
9F/9sihta2z567IstGu2wvmgviSHVk/zV9yqn/orD9tV6oFvvrBQMlEt8l27b1tA
4bajbHIyc1WmfQ+wg56eXATdbqCQ2YYfMjhchiCfFv5DhnMnPi5bV0PNR9Rq0CYw
05xpF16/85uvDbTizsgGNZ1Pb1nGsQ==
=oFWF
-----END PGP SIGNATURE-----
Merge tag 'mlx5-fixes-2020-05-22' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5 fixes 2020-05-22
This series introduces some fixes to mlx5 driver.
Please pull and let me know if there is any problem.
For -stable v4.13
('net/mlx5: Add command entry handling completion')
For -stable v5.2
('net/mlx5: Fix error flow in case of function_setup failure')
('net/mlx5: Fix memory leak in mlx5_events_init')
For -stable v5.3
('net/mlx5e: Update netdev txq on completions during closure')
('net/mlx5e: kTLS, Destroy key object after destroying the TIS')
('net/mlx5e: Fix inner tirs handling')
For -stable v5.6
('net/mlx5: Fix cleaning unmanaged flow tables')
('net/mlx5: Fix a race when moving command interface to events mode')
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This series includes two updates and one cleanup patch
1) Tang Bim, clean-up with IS_ERR() usage
2) Vlad introduces a new mlx5 kconfig flag for TC support
This is required due to the high volume of current and upcoming
development in the eswitch and representors areas where some of the
feature are TC based such as the downstream patches of MPLSoUDP and
the following representor bonding support for VF live migration and
uplink representor dynamic loading.
For this Vlad kept TC specific code in tc.c and rep/tc.c and
organized non TC code in representors specific files.
3) Eli Cohen adds support for MPLS over UPD encap and decap TC offloads.
-----BEGIN PGP SIGNATURE-----
iQEzBAABCAAdFiEEGhZs6bAKwk/OTgTpSD+KveBX+j4FAl7IZFEACgkQSD+KveBX
+j7IEQf/RFv633bWTlL63fEJjViRv1rjfkbyaXrGVL3gzr/Er01DeAPR22CNOlC3
bu1jHLKqVn0Mg0g5g2B4/H/7JoFbMBRTy4MXpM5VrQCIqwMuXG4zhWuoUj7ncQ5w
kXHAU6DUuZRn8/x1JLQOHDRTzKhav7ldT+nvvoKEMrad/DEMGz+bq67xh4l8nfi+
ktSFAO0UFi9ysb25CMfdqIqAL0J5nAJ7DNhw5x7IvtwUxNxate7HtBaBhBgZ9NWv
jYf8R3p+7JdgvVW18pZhmjbaBqaApXcZrC7rI07PR6rCOAHfToX6miR8gUtpIEno
itQkzYt9UF2dgNwMmxoJLqnUNiy/Cg==
=wkSR
-----END PGP SIGNATURE-----
Merge tag 'mlx5-updates-2020-05-22' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
mlx5-updates-2020-05-22
This series includes two updates and one cleanup patch
1) Tang Bim, clean-up with IS_ERR() usage
2) Vlad introduces a new mlx5 kconfig flag for TC support
This is required due to the high volume of current and upcoming
development in the eswitch and representors areas where some of the
feature are TC based such as the downstream patches of MPLSoUDP and
the following representor bonding support for VF live migration and
uplink representor dynamic loading.
For this Vlad kept TC specific code in tc.c and rep/tc.c and
organized non TC code in representors specific files.
3) Eli Cohen adds support for MPLS over UPD encap and decap TC offloads.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
In function mlx4_opreq_action(), pointer "mailbox" is not released,
when mlx4_cmd_box() return and error, causing a memory leak bug.
Fix this issue by going to "out" label, mlx4_free_cmd_mailbox() can
free this pointer.
Fixes: fe6f700d6c ("net/mlx4_core: Respond to operation request by firmware")
Signed-off-by: Qiushi Wu <wu000273@umn.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
vlan_for_each() are required to be called with rtnl_lock taken, otherwise
ASSERT_RTNL() warning will be triggered - which happens now during System
resume from suspend:
cpsw_suspend()
|- cpsw_ndo_stop()
|- __hw_addr_ref_unsync_dev()
|- cpsw_purge_all_mc()
|- vlan_for_each()
|- ASSERT_RTNL();
Hence, fix it by surrounding cpsw_ndo_stop() by rtnl_lock/unlock() calls.
Fixes: 15180eca56 ("net: ethernet: ti: cpsw: fix vlan mcast")
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit 14b41a2959 ("net: stmmac: Delete txtimer in suspend") was the
first attempt to fix a race between mod_timer() and setup_timer()
during stmmac_resume(). However the issue still exists as the commit
only addressed half of the issue.
Same race can still happen as stmmac_resume() re-attaches interface
way too early - even before hardware is fully initialized. Worse,
doing so allows network traffic to restart and stmmac_tx_timer_arm()
being called in the middle of stmmac_resume(), which re-init tx timers
in stmmac_init_coalesce(). timer_list will be corrupted and system
crashes as a result of race between mod_timer() and setup_timer().
systemd--1995 2.... 552950018us : stmmac_suspend: 4994
ksoftirq-9 0..s2 553123133us : stmmac_tx_timer_arm: 2276
systemd--1995 0.... 553127896us : stmmac_resume: 5101
systemd--320 7...2 553132752us : stmmac_tx_timer_arm: 2276
(sd-exec-1999 5...2 553135204us : stmmac_tx_timer_arm: 2276
---------------------------------
pc : run_timer_softirq+0x468/0x5e0
lr : run_timer_softirq+0x570/0x5e0
Call trace:
run_timer_softirq+0x468/0x5e0
__do_softirq+0x124/0x398
irq_exit+0xd8/0xe0
__handle_domain_irq+0x6c/0xc0
gic_handle_irq+0x60/0xb0
el1_irq+0xb8/0x180
arch_cpu_idle+0x38/0x230
default_idle_call+0x24/0x3c
do_idle+0x1e0/0x2b8
cpu_startup_entry+0x28/0x48
secondary_start_kernel+0x1b4/0x208
Fix this by deferring netif_device_attach() to the end of
stmmac_resume().
Signed-off-by: Leon Yu <leoyu@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When call function devm_platform_ioremap_resource(), we should use IS_ERR()
to check the return value and return PTR_ERR() if failed.
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix loop variables that are comparing or assigning signed against
unsigned values, mostly by declaring loop counters as unsigned.
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
