Tom Lendacky [Wed, 23 May 2018 16:38:29 +0000 (11:38 -0500)]
amd-xgbe: Remove use of comm_owned field
The comm_owned field can hide logic where double locking is attempted
and prevent multiple threads for the same device from accessing the
mutex properly. Remove the comm_owned field and use the mutex API
exclusively for gaining ownership. The current driver has been audited
and is obtaining communications ownership properly.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Lendacky [Wed, 23 May 2018 16:38:20 +0000 (11:38 -0500)]
amd-xgbe: Read and save the port property registers during probe
Read and save the port property registers once during the device probe
and then use the saved values as they are needed.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Tom Lendacky [Wed, 23 May 2018 16:38:11 +0000 (11:38 -0500)]
amd-xgbe: Fix debug output of max channel counts
A debug output print statement uses the wrong variable to output the
maximum Rx channel count (cut and paste error, basically). Fix the
statement to use the proper variable.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 23 May 2018 20:02:36 +0000 (16:02 -0400)]
Merge branch 'smc-next'
Ursula Braun says:
====================
patches 2018-05-23
here are more smc-patches for net-next:
Patch 1 fixes an ioctl problem detected by syzbot.
Patch 2 improves smc_lgr_list locking in case of abnormal link
group termination. If you want to receive a version for the net-tree,
please let me know. It would look somewhat different, since the port
terminate code has been moved to smc_core.c on net-next.
Patch 3 enables SMC to deal with urgent data.
Patch 4 is a minor improvement to avoid out-of-sync linkgroups
between 2 peers.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Ursula Braun [Wed, 23 May 2018 14:38:12 +0000 (16:38 +0200)]
net/smc: longer delay when freeing client link groups
Client link group creation always follows the server linkgroup creation.
If peer creates a new server link group, client has to create a new
client link group. If peer reuses a server link group for a new
connection, client has to reuse its client link group as well. To
avoid out-of-sync conditions for link groups a longer delay for
for client link group removal is defined to make sure this link group
still exists, once the peer decides to reuse a server link group.
Currently the client link group delay time is just 10 jiffies larger
than the server link group delay time. This patch increases the delay
difference to 10 seconds to have a better protection against
out-of-sync link groups.
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stefan Raspl [Wed, 23 May 2018 14:38:11 +0000 (16:38 +0200)]
net/smc: urgent data support
Add support for out of band data send and receive.
Signed-off-by: Stefan Raspl <raspl@linux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Hans Wippel [Wed, 23 May 2018 14:38:10 +0000 (16:38 +0200)]
net/smc: lock smc_lgr_list in port_terminate()
Currently, smc_port_terminate() is not holding the lock of the lgr list
while it is traversing the list. This patch adds locking to this
function and changes smc_lgr_terminate() accordingly.
Signed-off-by: Hans Wippel <hwippel@linux.ibm.com>
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ursula Braun [Wed, 23 May 2018 14:38:09 +0000 (16:38 +0200)]
net/smc: return 0 for ioctl calls in states INIT and CLOSED
A connected SMC-socket contains addresses of descriptors for the
send buffer and the rmb (receive buffer). Fields of these descriptors
are used to determine the answer for certain ioctl requests.
Add extra handling for unconnected SMC socket states without valid
buffer descriptor addresses.
Signed-off-by: Ursula Braun <ubraun@linux.ibm.com>
Reported-by: syzbot+e6714328fda813fc670f@syzkaller.appspotmail.com
Signed-off-by: David S. Miller <davem@davemloft.net>
Ganesh Goudar [Wed, 23 May 2018 14:33:33 +0000 (20:03 +0530)]
cxgb4: do L1 config when module is inserted
trigger an L1 configure operation when a transceiver module
is inserted in order to cause current "sticky" options like
Requested Forward Error Correction to be reapplied.
Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ganesh Goudar [Wed, 23 May 2018 14:32:58 +0000 (20:02 +0530)]
cxgb4: change the port capability bits definition
MDI Port Capabilities bit definitions were inconsistent with
regard to the MDI enum values. 2 bits used to define MDI in
the port capabilities are not really separable, it's a 2-bit
field with 4 different values. Change the port capability bit
definitions to be "AUTO" and "STRAIGHT" in order to get them
to line up with the enum's.
Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 23 May 2018 19:53:00 +0000 (15:53 -0400)]
Merge tag 'mac80211-next-for-davem-2018-05-23' of git://git./linux/kernel/git/jberg/mac80211-next
Johannes Berg says:
For this round, we have various things all over the place, notably
* a fix for a race in aggregation, which I want to let
bake for a bit longer before sending to stable
* some new statistics (ACK RSSI, TXQ)
* TXQ configuration
* preparations for HE, particularly radiotap
* replace confusing "country IE" by "country element" since it's
not referring to Ireland
Note that I merged net-next to get a fix from mac80211 that got
there via net, to apply one patch that would otherwise conflict.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 23 May 2018 19:46:50 +0000 (15:46 -0400)]
Merge branch 'qca8k-QCA8334-switch-support'
Michal Vokáč says:
====================
Add support for QCA8334 switch
This series basically adds support for a QCA8334 ethernet switch to the
qca8k driver. It is a four-port variant of the already supported seven
port QCA8337. Register map is the same for the whole familly and all chips
have the same device ID.
Major part of this series enhances the CPU port setting. Currently the CPU
port is not set to any sensible defaults compatible with the xGMII
interface. This series forces the CPU port to its maximum bandwidth and
also allows to adjust the new defaults using fixed-link device tree
sub-node.
Alongside these changes I fixed two checkpatch warnings regarding SPDX and
redundant parentheses.
Changes in v3:
- Rebased on latest net-next/master.
- Corrected fixed-link documentation.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Michal Vokáč [Wed, 23 May 2018 06:20:24 +0000 (08:20 +0200)]
net: dsa: qca8k: Remove redundant parentheses
Fix warning reported by checkpatch.
Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michal Vokáč [Wed, 23 May 2018 06:20:23 +0000 (08:20 +0200)]
net: dsa: qca8k: Replace GPL boilerplate by SPDX
Replace the GPLv2 license boilerplate with the SPDX license identifier.
Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michal Vokáč [Wed, 23 May 2018 06:20:22 +0000 (08:20 +0200)]
net: dsa: qca8k: Allow overwriting CPU port setting
Implement adjust_link function that allows to overwrite default CPU port
setting using fixed-link device tree subnode.
Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michal Vokáč [Wed, 23 May 2018 06:20:21 +0000 (08:20 +0200)]
net: dsa: qca8k: Force CPU port to its highest bandwidth
By default autonegotiation is enabled to configure MAC on all ports.
For the CPU port autonegotiation can not be used so we need to set
some sensible defaults manually.
This patch forces the default setting of the CPU port to 1000Mbps/full
duplex which is the chip maximum capability.
Also correct size of the bit field used to configure link speed.
Fixes:
6b93fb46480a ("net-next: dsa: add new driver for qca8xxx family")
Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michal Vokáč [Wed, 23 May 2018 06:20:20 +0000 (08:20 +0200)]
net: dsa: qca8k: Enable RXMAC when bringing up a port
When a port is brought up/down do not enable/disable only the TXMAC
but the RXMAC as well. This is essential for the CPU port to work.
Fixes:
6b93fb46480a ("net-next: dsa: add new driver for qca8xxx family")
Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michal Vokáč [Wed, 23 May 2018 06:20:19 +0000 (08:20 +0200)]
net: dsa: qca8k: Add support for QCA8334 switch
Add support for the four-port variant of the Qualcomm QCA833x switch.
Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Michal Vokáč [Wed, 23 May 2018 06:20:18 +0000 (08:20 +0200)]
net: dsa: qca8k: Add QCA8334 binding documentation
Add support for the four-port variant of the Qualcomm QCA833x switch.
The CPU port default link settings can be reconfigured using
a fixed-link sub-node.
Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ganesh Goudar [Wed, 23 May 2018 06:06:59 +0000 (11:36 +0530)]
cxgb4: Add new T6 device ids
Add 0x6088 and 0x6089 device ids for new T6 cards.
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Christian Brauner [Tue, 22 May 2018 19:34:21 +0000 (21:34 +0200)]
selftests: uevent filtering
Recent discussions around uevent filtering (cf. net-next commit [1], [2],
and [3] and discussions in [4], [5], and [6]) have shown that the semantics
around uevent filtering where not well understood.
Now that we have settled - at least for the moment - how uevent filtering
should look like let's add some selftests to ensure we don't regress
anything in the future.
Note, the semantics of uevent filtering are described in detail in my
commit message to [2] so I won't repeat them here.
[1]: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=
90d52d4fd82007005125d9a8d2d560a1ca059b9d
[2]: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=
a3498436b3a0f8ec289e6847e1de40b4123e1639
[3]: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=
26045a7b14bc7a5455e411d820110f66557d6589
[4]: https://lkml.org/lkml/2018/4/4/739
[5]: https://lkml.org/lkml/2018/4/26/767
[6]: https://lkml.org/lkml/2018/4/26/738
Signed-off-by: Christian Brauner <christian@brauner.io>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 23 May 2018 19:14:30 +0000 (15:14 -0400)]
Merge branch 'fib-rule-selftest'
Roopa Prabhu says:
====================
fib rule selftest
This series adds a new test to test fib rules.
ip route get is used to test fib rule matches.
This series also extends ip route get to match on
sport and dport to test recent support of sport
and dport fib rule match.
v2 - address ido's commemt to make sport dport
ip route get to work correctly for input route
get. I don't support ip route get on ip-proto match yet.
ip route get creates a udp packet and i have left
it at that. We could extend ip route get to support
a few ip proto matches in followup patches.
v3 - Support ip_proto (only tcp and udp) match in getroute.
dropped printing of new match attrs in ip route get,
because ipv6 does not print it. And ipv6 currrently shares
the dump api with ipv6 notify and its better to not add them
to the notify api. dropped it to keep the api consistent between
ipv4 and ipv6 (though uid is already printed in the ipv4 case).
If we need it, both ipv4 and ipv6 can be enhanced to provide
a separate get api. Moved skb creation for ipv4 to a separate func.
v4 - drop separate skb for netlink and fix concerns around rcu and netlink
reply (as pointed out by DaveM). I now try to reset the skb after the route
lookup and before the netlink send (testing shows this is ok. More eyes and
any feedback here will be helpful)
v5 - dropped RTA_TABLE ipv4_rtm_policy update from this series and posted
it separately for net (feedback from Eric)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Roopa Prabhu [Tue, 22 May 2018 21:03:29 +0000 (14:03 -0700)]
selftests: net: initial fib rule tests
This adds a first set of tests for fib rule match/action for
ipv4 and ipv6. Initial tests only cover action lookup table.
can be extended to cover other actions in the future.
Uses ip route get to validate the rule lookup.
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Roopa Prabhu [Tue, 22 May 2018 21:03:28 +0000 (14:03 -0700)]
ipv6: support sport, dport and ip_proto in RTM_GETROUTE
This is a followup to fib6 rules sport, dport and ipproto
match support. Only supports tcp, udp and icmp for ipproto.
Used by fib rule self tests.
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Roopa Prabhu [Tue, 22 May 2018 21:03:27 +0000 (14:03 -0700)]
ipv4: support sport, dport and ip_proto in RTM_GETROUTE
This is a followup to fib rules sport, dport and ipproto
match support. Only supports tcp, udp and icmp for ipproto.
Used by fib rule self tests.
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Haiyang Zhang [Tue, 22 May 2018 18:29:34 +0000 (11:29 -0700)]
hv_netvsc: Add handlers for ethtool get/set msg level
The handlers for ethtool get/set msg level are missing from netvsc.
This patch adds them.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Colin Ian King [Tue, 22 May 2018 16:18:09 +0000 (17:18 +0100)]
net: vxge: fix spelling mistake in macro VXGE_HW_ERR_PRIVILAGED_OPEARATION
Rename VXGE_HW_ERR_PRIVILAGED_OPEARATION to VXGE_HW_ERR_PRIVILEGED_OPERATION
to fix spelling mistake.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 23 May 2018 18:48:44 +0000 (14:48 -0400)]
Merge branch 'udp-gso-fixes'
Willem de Bruijn says:
====================
udp gso fixes
A few small fixes:
- disallow segmentation with XFRM
- do not leak gso packets into the ingress path
Changes
v1 -> v2
- fix build failure in team.c
- drop scatter-gather fix:
this is now fixed by commit
113f99c33585 ("net: test tailroom
before appending to linear skb"). After this patch gso skbs are
built non-linear regardless of NETIF_F_SG and skb_segment builds
linear segs.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Willem de Bruijn [Tue, 22 May 2018 15:34:40 +0000 (11:34 -0400)]
gso: limit udp gso to egress-only virtual devices
Until the udp receive stack supports large packets (UDP GRO), GSO
packets must not loop from the egress to the ingress path.
Revert the change that added NETIF_F_GSO_UDP_L4 to various virtual
devices through NETIF_F_GSO_ENCAP_ALL as this included devices that
may loop packets, such as veth and macvlan.
Instead add it to specific devices that forward to another device's
egress path, bonding and team.
Fixes:
83aa025f535f ("udp: add gso support to virtual devices")
CC: Alexander Duyck <alexander.duyck@gmail.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Willem de Bruijn [Tue, 22 May 2018 15:34:39 +0000 (11:34 -0400)]
udp: exclude gso from xfrm paths
UDP GSO delays final datagram construction to the GSO layer. This
conflicts with protocol transformations.
Fixes:
bec1f6f69736 ("udp: generate gso with UDP_SEGMENT")
CC: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 23 May 2018 18:34:28 +0000 (14:34 -0400)]
Merge branch 'net-sfp-small-improvements'
Antoine Tenart says:
====================
net: sfp: small improvements
A small series of patches improving the SFP support by adding a warning
when no Tx disable pin is available, and making the i2c-bus property
mandatory.
Thanks!
Antoine
Since v1:
- Removed the patch fixing the sfp driver when no i2c bus was described.
- Made two new patches to make the i2c-bus property mandatory for sfp modules.
Since the phylink series:
- s/-EOPNOTSUPP/-ENODEV/ in patch 1/2.
- I added the acked-by tag in patch 2/2.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Antoine Tenart [Tue, 22 May 2018 10:18:01 +0000 (12:18 +0200)]
Documentation/bindings: net: the sfp i2c-bus property is now mandatory
The i2c-bus property for sfp modules was made mandatory. Update the
documentation to keep it in sync with the driver's behaviour.
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Antoine Tenart [Tue, 22 May 2018 10:18:00 +0000 (12:18 +0200)]
net: phy: sfp: make the i2c-bus dt property mandatory
This patch makes the i2c-bus property mandatory when using a device
tree. If the sfp i2c bus isn't described it's impossible to guess the
protocol to use for a given module, and the sfp module would then not
work in most cases.
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Antoine Tenart [Tue, 22 May 2018 10:17:59 +0000 (12:17 +0200)]
net: phy: sfp: warn the user when no tx_disable pin is available
In case no Tx disable pin is available the SFP modules will always be
emitting. This could be an issue when using modules using laser as their
light source as we would have no way to disable it when the fiber is
removed. This patch adds a warning when registering an SFP cage which do
not have its tx_disable pin wired or available.
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 23 May 2018 18:26:20 +0000 (14:26 -0400)]
Merge branch 'nfp-abm-add-basic-support-for-advanced-buffering-NIC'
Jakub Kicinski says:
====================
nfp: abm: add basic support for advanced buffering NIC
This series lays groundwork for advanced buffer management NIC feature.
It makes necessary NFP core changes, spawns representors and adds devlink
glue. Following series will add the actual buffering configuration (patch
series size limit).
First three patches add support for configuring NFP buffer pools via a
mailbox. The existing devlink APIs are used for the purpose.
Third patch allows us to perform small reads from the NFP memory.
The rest of the patch set adds eswitch mode change support and makes
the driver spawn appropriate representors.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Tue, 22 May 2018 05:12:55 +0000 (22:12 -0700)]
nfp: assign vNIC id as phys_port_name of vNICs which are not ports
When NFP is modelled as a switch we assign phys_port_name to respective
port(representor )s:
vNIC0 - | - PF port (pf%d) MAC/PHY (p%d[s%d]) - |E==
In most cases there is only one vNIC for communication with the switch.
If there is more than one we need to be able to identify them. Use %d
as phys_port_name of the vNICs.
We don't have to pass ID to nfp_net_debugfs_vnic_add() separately any
more.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Tue, 22 May 2018 05:12:54 +0000 (22:12 -0700)]
nfp: use split in naming of PCIe PF ports
PCI PFs can host more than one logical endpoint. In NFP terms
this means having more than one vNIC for PCIe PF. The vNICs
are usually corresponding 1:1 to Ethernet ports. In core NIC
we use the legacy idea of vNIC *being* the Ethernet port,
hence netdevs put pX(sY) in their phys_port_name, like Ethernet
ports would. When ASIC ports are fully represented we need to
be able to name different PCIe PF ports, too. Use a scheme
similar to Ethernet ports - pfXsY, for PCIe PF number X,
sub-port Y.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Tue, 22 May 2018 05:12:53 +0000 (22:12 -0700)]
nfp: abm: force Ethternet port up
Current control firmware does not cater too well to multi-host
applications. There is no way to check which hosts are up or
otherwise negotiate what the state of the external port (the
Ethernet port) should be. Make sure the link is up when driver
loads, and don't take it down when Ethernet port netdev is
closed.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Tue, 22 May 2018 05:12:52 +0000 (22:12 -0700)]
nfp: abm: spawn port netdevs
To configure buffering points we need full set of netdevs:
ASIC
user netdev -- | -- PCIe port MAC port -- | --
Configuring egrees qdiscs on user netdev configures standard
Linux TC software qdiscs, configuring PCIe port qdiscs will
provide a way of setting ASIC queuing parameters for PCIe block.
MAC port netdev egress qdiscs correspond to ASIC MAC Traffic
Manager block.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Tue, 22 May 2018 05:12:51 +0000 (22:12 -0700)]
nfp: add devlink_eswitch_mode_set callback
Our previous apps all assumed to use only one eswitch mode (legacy
or switchdev) without the ability to change it. ABM NIC will
want to support the switch so plumb devlink_eswitch_mode_set through.
The devlink_eswitch_mode_set is expected to spawn representors and
potentially devlink ports so it's called under big devlink lock and
pf->lock.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Tue, 22 May 2018 05:12:50 +0000 (22:12 -0700)]
devlink: don't take instance lock around eswitch mode set
Changing switch mode may want to register and unregister devlink
ports. Therefore similarly to DEVLINK_CMD_PORT_SPLIT/UNSPLIT it
should not take the instance lock. Drivers don't depend on existing
locking since it's a very recent addition.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Tue, 22 May 2018 05:12:49 +0000 (22:12 -0700)]
nfp: add app pointer to port representors
nfp_apps can currently associate their structures with vNICs but
not representors. Add app priv pointer to representors as well.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Tue, 22 May 2018 05:12:48 +0000 (22:12 -0700)]
nfp: abm: create project-specific vNIC structure
ABM NIC requires more complex vNIC handling, allocate
per-vNIC structure. Find out RX queue base and PCI PF id.
There will be multiple PFs sharing the same MAC port, therefore
the MAC address assigned to the vNIC must be looked up in the
HWInfo database.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Tue, 22 May 2018 05:12:47 +0000 (22:12 -0700)]
nfp: abm: add initial active buffer management NIC skeleton
Add a very rudimentary active buffer management NIC support.
For now it's like a core NIC without SR-IOV support. Next
commits will extend its functionality.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Tue, 22 May 2018 05:12:46 +0000 (22:12 -0700)]
nfp: core: allow 4-byte aligned accesses to Memory Units
Current code doesn't enforce length requirements on 32bit accesses
with action NFP_CPP_ACTION_RW to memory units, but if the access
is only aligned to 4 bytes as well we will fall into the explicit
access case and error out. Such accesses are correct, allow them
by lowering the width earlier.
While at it use a switch statement to improve readability.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Tue, 22 May 2018 05:12:45 +0000 (22:12 -0700)]
nfp: add shared buffer configuration
Allow app FW to advertise its shared buffer pool information.
Use the per-PF mailbox to configure them from devlink.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Tue, 22 May 2018 05:12:44 +0000 (22:12 -0700)]
nfp: add support for per-PCI PF mailbox
When working with devlink-related functionality for locking reasons
it's easier to create a new mailbox per-PCI PF device than try to
use one of the netdev/vNIC mailboxes.
Define new mailbox structure and resolve its symbol during probe.
For forward compatibility allow silent truncation of mailbox command
data.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Tue, 22 May 2018 05:12:43 +0000 (22:12 -0700)]
nfp: move rtsym helpers to pf code
nfp_net_pf_rtsym_read_optional() and nfp_net_pf_map_rtsym() are not
really related to networking code. Move them to the PF code and
remove the net from their names. They will soon be needed by code
outside of nfp_net_main.c anyway.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 23 May 2018 17:23:40 +0000 (13:23 -0400)]
Merge branch 'bpfilter'
Alexei Starovoitov says:
====================
bpfilter
v2->v3:
- followed Luis's suggestion and significantly simplied first patch
with shmem_kernel_file_setup+kernel_write. Added kdoc for new helper
- fixed typos and race to access pipes with mutex
- tested with bpfilter being 'builtin'. CONFIG_BPFILTER_UMH=y|m both work.
Interesting to see a usermode executable being embedded inside vmlinux.
- it doesn't hurt to enable bpfilter in .config.
ip_setsockopt commands sent to usermode via pipes and -ENOPROTOOPT is
returned from userspace, so kernel falls back to original iptables code
v1->v2:
this patch set is almost a full rewrite of the earlier umh modules approach
The v1 of patches and follow up discussion was covered by LWN:
https://lwn.net/Articles/749108/
I believe the v2 addresses all issues brought up by Andy and others.
Mainly there are zero changes to kernel/module.c
Instead of teaching module loading logic to recognize special
umh module, let normal kernel modules execute part of its own
.init.rodata as a new user space process (Andy's idea)
Patch 1 introduces this new helper:
int fork_usermode_blob(void *data, size_t len, struct umh_info *info);
Input:
data + len == executable file
Output:
struct umh_info {
struct file *pipe_to_umh;
struct file *pipe_from_umh;
pid_t pid;
};
Advantages vs v1:
- the embedded user mode executable is stored as .init.rodata inside
normal kernel module. These pages are freed when .ko finishes loading
- the elf file is copied into tmpfs file. The user mode process is swappable.
- the communication between user mode process and 'parent' kernel module
is done via two unix pipes, hence protocol is not exposed to
user space
- impossible to launch umh on its own (that was the main issue of v1)
and impossible to be man-in-the-middle due to pipes
- bpfilter.ko consists of tiny kernel part that passes the data
between kernel and umh via pipes and much bigger umh part that
doing all the work
- 'lsmod' shows bpfilter.ko as usual.
'rmmod bpfilter' removes kernel module and kills corresponding umh
- signed bpfilter.ko covers the whole image including umh code
Few issues:
- the user can still attach to the process and debug it with
'gdb /proc/pid/exe pid', but 'gdb -p pid' doesn't work.
(a bit worse comparing to v1)
- tinyconfig will notice a small increase in .text
+766 | TEXT |
7c8b94806bec umh: introduce fork_usermode_blob() helper
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexei Starovoitov [Tue, 22 May 2018 02:22:30 +0000 (19:22 -0700)]
net: add skeleton of bpfilter kernel module
bpfilter.ko consists of bpfilter_kern.c (normal kernel module code)
and user mode helper code that is embedded into bpfilter.ko
The steps to build bpfilter.ko are the following:
- main.c is compiled by HOSTCC into the bpfilter_umh elf executable file
- with quite a bit of objcopy and Makefile magic the bpfilter_umh elf file
is converted into bpfilter_umh.o object file
with _binary_net_bpfilter_bpfilter_umh_start and _end symbols
Example:
$ nm ./bld_x64/net/bpfilter/bpfilter_umh.o
0000000000004cf8 T _binary_net_bpfilter_bpfilter_umh_end
0000000000004cf8 A _binary_net_bpfilter_bpfilter_umh_size
0000000000000000 T _binary_net_bpfilter_bpfilter_umh_start
- bpfilter_umh.o and bpfilter_kern.o are linked together into bpfilter.ko
bpfilter_kern.c is a normal kernel module code that calls
the fork_usermode_blob() helper to execute part of its own data
as a user mode process.
Notice that _binary_net_bpfilter_bpfilter_umh_start - end
is placed into .init.rodata section, so it's freed as soon as __init
function of bpfilter.ko is finished.
As part of __init the bpfilter.ko does first request/reply action
via two unix pipe provided by fork_usermode_blob() helper to
make sure that umh is healthy. If not it will kill it via pid.
Later bpfilter_process_sockopt() will be called from bpfilter hooks
in get/setsockopt() to pass iptable commands into umh via bpfilter.ko
If admin does 'rmmod bpfilter' the __exit code bpfilter.ko will
kill umh as well.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexei Starovoitov [Tue, 22 May 2018 02:22:29 +0000 (19:22 -0700)]
umh: introduce fork_usermode_blob() helper
Introduce helper:
int fork_usermode_blob(void *data, size_t len, struct umh_info *info);
struct umh_info {
struct file *pipe_to_umh;
struct file *pipe_from_umh;
pid_t pid;
};
that GPLed kernel modules (signed or unsigned) can use it to execute part
of its own data as swappable user mode process.
The kernel will do:
- allocate a unique file in tmpfs
- populate that file with [data, data + len] bytes
- user-mode-helper code will do_execve that file and, before the process
starts, the kernel will create two unix pipes for bidirectional
communication between kernel module and umh
- close tmpfs file, effectively deleting it
- the fork_usermode_blob will return zero on success and populate
'struct umh_info' with two unix pipes and the pid of the user process
As the first step in the development of the bpfilter project
the fork_usermode_blob() helper is introduced to allow user mode code
to be invoked from a kernel module. The idea is that user mode code plus
normal kernel module code are built as part of the kernel build
and installed as traditional kernel module into distro specified location,
such that from a distribution point of view, there is
no difference between regular kernel modules and kernel modules + umh code.
Such modules can be signed, modprobed, rmmod, etc. The use of this new helper
by a kernel module doesn't make it any special from kernel and user space
tooling point of view.
Such approach enables kernel to delegate functionality traditionally done
by the kernel modules into the user space processes (either root or !root) and
reduces security attack surface of the new code. The buggy umh code would crash
the user process, but not the kernel. Another advantage is that umh code
of the kernel module can be debugged and tested out of user space
(e.g. opening the possibility to run clang sanitizers, fuzzers or
user space test suites on the umh code).
In case of the bpfilter project such architecture allows complex control plane
to be done in the user space while bpf based data plane stays in the kernel.
Since umh can crash, can be oom-ed by the kernel, killed by the admin,
the kernel module that uses them (like bpfilter) needs to manage life
time of umh on its own via two unix pipes and the pid of umh.
The exit code of such kernel module should kill the umh it started,
so that rmmod of the kernel module will cleanup the corresponding umh.
Just like if the kernel module does kmalloc() it should kfree() it
in the exit code.
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Zaborowski [Tue, 22 May 2018 00:46:02 +0000 (02:46 +0200)]
nl80211: Reject disconnect commands except from conn_owner
Reject NL80211_CMD_DISCONNECT, NL80211_CMD_DISASSOCIATE,
NL80211_CMD_DEAUTHENTICATE and NL80211_CMD_ASSOCIATE commands
from clients other than the connection owner set in the connect,
authenticate or associate commands, if it was set.
The main point of this check is to prevent chaos when two processes
try to use nl80211 at the same time, it's not a security measure.
The same thing should possibly be done for JOIN_IBSS/LEAVE_IBSS and
START_AP/STOP_AP.
Signed-off-by: Andrew Zaborowski <andrew.zaborowski@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
João Paulo Rechi Vita [Tue, 22 May 2018 21:29:32 +0000 (14:29 -0700)]
rfkill: Create rfkill-none LED trigger
Creates a new trigger rfkill-none, as a complement to rfkill-any, which
drives LEDs when any radio is enabled. The new trigger is meant to turn
a LED ON whenever all radios are OFF, and turn it OFF otherwise.
Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
João Paulo Rechi Vita [Tue, 22 May 2018 21:29:31 +0000 (14:29 -0700)]
rfkill: Rename rfkill_any_led_trigger* functions
Rename these functions to rfkill_global_led_trigger*, as they are going
to be extended to handle another global rfkill led trigger.
This commit does not change any functionality.
Signed-off-by: João Paulo Rechi Vita <jprvita@endlessm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Vidyullatha Kanchanapally [Tue, 22 May 2018 08:19:08 +0000 (10:19 +0200)]
nl80211: Update ERP info using NL80211_CMD_UPDATE_CONNECT_PARAMS
Use NL80211_CMD_UPDATE_CONNECT_PARAMS to update new ERP information,
Association IEs and the Authentication type to driver / firmware which
will be used in subsequent roamings.
Signed-off-by: Vidyullatha Kanchanapally <vidyullatha@codeaurora.org>
[arend: extended fils-sk kernel doc and added check in wiphy_register()]
Reviewed-by: Jithu Jance <jithu.jance@broadcom.com>
Reviewed-by: Eylon Pedinovsky <eylon.pedinovsky@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Arend Van Spriel [Tue, 22 May 2018 08:19:07 +0000 (10:19 +0200)]
nl80211: add FILS related parameters to ROAM event
In case of FILS shared key offload the parameters can change
upon roaming of which user-space needs to be notified.
Reviewed-by: Jithu Jance <jithu.jance@broadcom.com>
Reviewed-by: Eylon Pedinovsky <eylon.pedinovsky@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Arend Van Spriel [Tue, 22 May 2018 08:19:06 +0000 (10:19 +0200)]
cfg80211: use separate struct for FILS parameters
Put FILS related parameters into their own struct definition so
it can be reused for roam events in subsequent change.
Reviewed-by: Jithu Jance <jithu.jance@broadcom.com>
Reviewed-by: Eylon Pedinovsky <eylon.pedinovsky@broadcom.com>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Denis Kenzior [Mon, 21 May 2018 15:31:13 +0000 (10:31 -0500)]
nl80211: Optimize cfg80211_bss_expire invocations
Only invoke cfg80211_bss_expire on the first nl80211_dump_scan
invocation to avoid (likely) redundant processing.
Signed-off-by: Denis Kenzior <denkenz@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Ilan Peer [Fri, 20 Apr 2018 10:49:25 +0000 (13:49 +0300)]
mac80211: Support adding duration for prepare_tx() callback
There are specific cases, such as SAE authentication exchange, that
might require long duration to complete. For such cases, add support
for indicating to the driver the required duration of the prepare_tx()
operation, so the driver would still be able to complete the frame
exchange.
Currently, indicate the duration only for SAE authentication exchange,
as SAE authentication can take up to 2000 msec (as defined in IEEE
P802.11-REVmd D1.0 p. 3504).
As the patch modified the prepare_tx() callback API, also modify
the relevant code in iwlwifi.
Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Johannes Berg [Wed, 23 May 2018 09:05:26 +0000 (11:05 +0200)]
Merge remote-tracking branch 'net-next/master' into mac80211-next
Bring in net-next which had pulled in net, so I have the changes
from mac80211 and can apply a patch that would otherwise conflict.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
David S. Miller [Wed, 23 May 2018 03:29:55 +0000 (23:29 -0400)]
Merge branch 'qed-firmware-TLV'
Sudarsana Reddy Kalluru says:
====================
qed*: Add support for management firmware TLV request.
Management firmware (MFW) requires config and state information from
the driver. It queries this via TLV (type-length-value) request wherein
mfw specificies the list of required TLVs. Driver fills the TLV data
and responds back to MFW.
This patch series adds qed/qede/qedf/qedi driver implementation for
supporting the TLV queries from MFW.
Changes from previous versions:
-------------------------------
v2: Split patch (2) into multiple simpler patches.
v2: Update qed_tlv_parsed_buf->p_val datatype to void pointer to avoid
bunch of unnecessary typecasts.
Please consider applying this series to "net-next".
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Manish Rangankar [Tue, 22 May 2018 07:28:46 +0000 (00:28 -0700)]
qedi: Add get_generic_tlv_data handler.
Signed-off-by: Manish Rangankar <manish.rangankar@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Manish Rangankar [Tue, 22 May 2018 07:28:45 +0000 (00:28 -0700)]
qedi: Add support for populating ethernet TLVs.
This patch adds callbacks for providing the ethernet protocol driver TLVs.
Signed-off-by: Manish Rangankar <manish.rangankar@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Chad Dupuis [Tue, 22 May 2018 07:28:44 +0000 (00:28 -0700)]
qedf: Add get_generic_tlv_data handler.
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Chad Dupuis [Tue, 22 May 2018 07:28:43 +0000 (00:28 -0700)]
qedf: Add support for populating ethernet TLVs.
This patch adds callbacks for providing the ethernet protocol driver TLVs.
Signed-off-by: Chad Dupuis <chad.dupuis@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sudarsana Reddy Kalluru [Tue, 22 May 2018 07:28:42 +0000 (00:28 -0700)]
qede: Add support for populating ethernet TLVs.
This patch adds callbacks for providing the ethernet protocol driver TLVs.
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sudarsana Reddy Kalluru [Tue, 22 May 2018 07:28:41 +0000 (00:28 -0700)]
qed: Add driver infrastucture for handling mfw requests.
MFW requests the TLVs in interrupt context. Extracting of the required
data from upper layers and populating of the TLVs require process context.
The patch adds work-queues for processing the tlv requests. It also adds
the implementation for requesting the tlv values from appropriate protocol
driver.
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sudarsana Reddy Kalluru [Tue, 22 May 2018 07:28:40 +0000 (00:28 -0700)]
qed: Add support for processing iscsi tlv request.
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sudarsana Reddy Kalluru [Tue, 22 May 2018 07:28:39 +0000 (00:28 -0700)]
qed: Add support for processing fcoe tlv request.
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sudarsana Reddy Kalluru [Tue, 22 May 2018 07:28:38 +0000 (00:28 -0700)]
qed: Add support for tlv request processing.
The patch adds driver support for processing TLV requests/repsonses
from the mfw and upper driver layers respectively. The implementation
reads the requested TLVs from the shared memory, requests the values
from upper layer drivers, populates this info (TLVs) shared memory and
notifies MFW about the TLV values.
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sudarsana Reddy Kalluru [Tue, 22 May 2018 07:28:37 +0000 (00:28 -0700)]
qed: Add MFW interfaces for TLV request support.
The patch adds required management firmware (MFW) interfaces such as
mailbox commands, TLV types etc.
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 22 May 2018 19:45:06 +0000 (15:45 -0400)]
Merge branch '40GbE' of git://git./linux/kernel/git/jkirsher/next-queue
Jeff Kirsher says:
====================
40GbE Intel Wired LAN Driver Updates 2018-05-22
This series contains updates to i40e only.
Jake provides all the changes in this series starting with making it
consistent in how we approach the bit lock. Fixed the reporting of the
VEB statistics and the queue statistics to always return every queue
even if it is not currently in use. Use WARN_ONCE() so that the first
time we end up with an incorrect size we will dump a stack trace and a
message to help highlight the issue early in testing. Folded the fixed
string prefix into the stat string definition. Instead of using a
separate char *p pointer when copying strings, use the data pointer
directly. Added code comments for several of the statistic functions to
better explain the number and ordering of statistics.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 22 May 2018 19:43:16 +0000 (15:43 -0400)]
Merge branch 'tcp-ECN-quickack'
Eric Dumazet says:
====================
tcp: reduce quickack pressure for ECN
Small patch series changing TCP behavior vs quickack and ECN
First patch is a refactoring, adding parameter to tcp_incr_quickack()
and tcp_enter_quickack_mode() helpers.
Second patch implements the change, lowering number of ACK packets
sent after an ECN event.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Mon, 21 May 2018 22:08:57 +0000 (15:08 -0700)]
tcp: do not aggressively quick ack after ECN events
ECN signals currently forces TCP to enter quickack mode for
up to 16 (TCP_MAX_QUICKACKS) following incoming packets.
We believe this is not needed, and only sending one immediate ack
for the current packet should be enough.
This should reduce the extra load noticed in DCTCP environments,
after congestion events.
This is part 2 of our effort to reduce pure ACK packets.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Mon, 21 May 2018 22:08:56 +0000 (15:08 -0700)]
tcp: add max_quickacks param to tcp_incr_quickack and tcp_enter_quickack_mode
We want to add finer control of the number of ACK packets sent after
ECN events.
This patch is not changing current behavior, it only enables following
change.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Vlad Buslov [Mon, 21 May 2018 20:03:04 +0000 (23:03 +0300)]
net: sched: don't disable bh when accessing action idr
Initial net_device implementation used ingress_lock spinlock to synchronize
ingress path of device. This lock was used in both process and bh context.
In some code paths action map lock was obtained while holding ingress_lock.
Commit
e1e992e52faa ("[NET_SCHED] protect action config/dump from irqs")
modified actions to always disable bh, while using action map lock, in
order to prevent deadlock on ingress_lock in softirq. This lock was removed
from net_device, so disabling bh, while accessing action map, is no longer
necessary.
Replace all action idr spinlock usage with regular calls that do not
disable bh.
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Tue, 22 May 2018 18:44:20 +0000 (14:44 -0400)]
Merge branch 'net-ipv6-Fix-route-append-and-replace-use-cases'
David Ahern says:
====================
net/ipv6: Fix route append and replace use cases
This patch set fixes a few append and replace uses cases for IPv6 and
adds test cases that codifies the expectations of how append and replace
are expected to work. In paricular it allows a multipath route to have
a dev-only nexthop, something Thomas tried to accomplish with commit
edd7ceb78296 ("ipv6: Allow non-gateway ECMP for IPv6") which had to be
reverted because of breakage, and to replace an existing FIB entry
with a reject route.
There are a number of inconsistent and surprising aspects to the Linux
API for adding, deleting, replacing and changing FIB entries. For example,
with IPv4 NLM_F_APPEND means insert the route after any existing entries
with the same key (prefix + priority + TOS for IPv4) and NLM_F_CREATE
without the append flag inserts the new route before any existing entries.
IPv6 on the other hand attempts to guess whether a new route should be
appended to an existing one, possibly creating a multipath route, or to
add a new entry after any existing ones. This applies to both the 'append'
(NLM_F_CREATE + NLM_F_APPEND) and 'prepend' (NLM_F_CREATE only) cases
meaning for IPv6 the NLM_F_APPEND is basically ignored. This guessing
whether the route should be added to a multipath route (gateway routes)
or inserted after existing entries (non-gateway based routes) means a
multipath route can not have a dev only nexthop (potentially required in
some cases - tunnels or VRF route leaking for example) and route 'replace'
is a bit adhoc treating gateway based routes and dev-only / reject routes
differently.
This has led to frustration with developers working on routing suites
such as FRR where workarounds such as delete and add are used instead of
replace.
After this patch set there are 2 differences between IPv4 and IPv6:
1. 'ip ro prepend' = NLM_F_CREATE only
IPv4 adds the new route before any existing ones
IPv6 adds new route after any existing ones
2. 'ip ro append' = NLM_F_CREATE|NLM_F_APPEND
IPv4 adds the new route after any existing ones
IPv6 adds the nexthop to existing routes converting to multipath
For the former, there are cases where we want same prefix routes added
after existing ones (e.g., multicast, prefix routes for macvlan when used
for virtual router redundancy). Requiring the APPEND flag to add a new
route to an existing one helps here but is a slight change in behavior
since prepend with gateway routes now create a separate entry.
For the latter IPv6 behavior is preferred - appending a route for the same
prefix and metric to make a multipath route, so really IPv4 not allowing an
existing route to be updated is the limiter. This will be fixed when
nexthops become separate objects - a future patch set.
Thank you to Thomas and Ido for testing earlier versions of this set, and
to Ido for providing an update to the mlxsw driver.
Changes since RFC
- cleanup wording in test script; add comments about expected failures
and why
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
David Ahern [Mon, 21 May 2018 17:26:58 +0000 (10:26 -0700)]
selftests: fib_tests: Add ipv4 route add append replace tests
Add IPv4 route tests covering add, append and replace permutations.
Assumes the ability to add a basic single path route works; this is
required for example when adding an address to an interface.
$ fib_tests.sh -t ipv4_rt
IPv4 route add / append tests
TEST: Attempt to add duplicate route - gw [ OK ]
TEST: Attempt to add duplicate route - dev only [ OK ]
TEST: Attempt to add duplicate route - reject route [ OK ]
TEST: Add new nexthop for existing prefix [ OK ]
TEST: Append nexthop to existing route - gw [ OK ]
TEST: Append nexthop to existing route - dev only [ OK ]
TEST: Append nexthop to existing route - reject route [ OK ]
TEST: Append nexthop to existing reject route - gw [ OK ]
TEST: Append nexthop to existing reject route - dev only [ OK ]
TEST: add multipath route [ OK ]
TEST: Attempt to add duplicate multipath route [ OK ]
TEST: Route add with different metrics [ OK ]
TEST: Route delete with metric [ OK ]
IPv4 route replace tests
TEST: Single path with single path [ OK ]
TEST: Single path with multipath [ OK ]
TEST: Single path with reject route [ OK ]
TEST: Single path with single path via multipath attribute [ OK ]
TEST: Invalid nexthop [ OK ]
TEST: Single path - replace of non-existent route [ OK ]
TEST: Multipath with multipath [ OK ]
TEST: Multipath with single path [ OK ]
TEST: Multipath with single path via multipath attribute [ OK ]
TEST: Multipath with reject route [ OK ]
TEST: Multipath - invalid first nexthop [ OK ]
TEST: Multipath - invalid second nexthop [ OK ]
TEST: Multipath - replace of non-existent route [ OK ]
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David Ahern [Mon, 21 May 2018 17:26:57 +0000 (10:26 -0700)]
selftests: fib_tests: Add ipv6 route add append replace tests
Add IPv6 route tests covering add, append and replace permutations.
Assumes the ability to add a basic single path route works; this is
required for example when adding an address to an interface.
$ fib_tests.sh -t ipv6_rt
IPv6 route add / append tests
TEST: Attempt to add duplicate route - gw [ OK ]
TEST: Attempt to add duplicate route - dev only [ OK ]
TEST: Attempt to add duplicate route - reject route [ OK ]
TEST: Add new route for existing prefix (w/o NLM_F_EXCL) [ OK ]
TEST: Append nexthop to existing route - gw [ OK ]
TEST: Append nexthop to existing route - dev only [ OK ]
TEST: Append nexthop to existing route - reject route [ OK ]
TEST: Append nexthop to existing reject route - gw [ OK ]
TEST: Append nexthop to existing reject route - dev only [ OK ]
TEST: Add multipath route [ OK ]
TEST: Attempt to add duplicate multipath route [ OK ]
TEST: Route add with different metrics [ OK ]
TEST: Route delete with metric [ OK ]
IPv6 route replace tests
TEST: Single path with single path [ OK ]
TEST: Single path with multipath [ OK ]
TEST: Single path with reject route [ OK ]
TEST: Single path with single path via multipath attribute [ OK ]
TEST: Invalid nexthop [ OK ]
TEST: Single path - replace of non-existent route [ OK ]
TEST: Multipath with multipath [ OK ]
TEST: Multipath with single path [ OK ]
TEST: Multipath with single path via multipath attribute [ OK ]
TEST: Multipath with reject route [ OK ]
TEST: Multipath - invalid first nexthop [ OK ]
TEST: Multipath - invalid second nexthop [ OK ]
TEST: Multipath - replace of non-existent route [ OK ]
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David Ahern [Mon, 21 May 2018 17:26:56 +0000 (10:26 -0700)]
selftests: fib_tests: Add option to pause after each test
Add option to pause after each test before cleanup is done. Allows
user to do manual inspection or more ad-hoc testing after each test
with the setup in tact.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David Ahern [Mon, 21 May 2018 17:26:55 +0000 (10:26 -0700)]
selftests: fib_tests: Add command line options
Add command line options for controlling pause on fail, controlling
specific tests to run and verbose mode rather than relying on environment
variables.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David Ahern [Mon, 21 May 2018 17:26:54 +0000 (10:26 -0700)]
selftests: fib_tests: Add success-fail counts
As more tests are added, it is convenient to have a tally at the end.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David Ahern [Mon, 21 May 2018 17:26:53 +0000 (10:26 -0700)]
net/ipv6: Simplify route replace and appending into multipath route
Bring consistency to ipv6 route replace and append semantics.
Remove rt6_qualify_for_ecmp which is just guess work. It fails in 2 cases:
1. can not replace a route with a reject route. Existing code appends
a new route instead of replacing the existing one.
2. can not have a multipath route where a leg uses a dev only nexthop
Existing use cases affected by this change:
1. adding a route with existing prefix and metric using NLM_F_CREATE
without NLM_F_APPEND or NLM_F_EXCL (ie., what iproute2 calls
'prepend'). Existing code auto-determines that the new nexthop can
be appended to an existing route to create a multipath route. This
change breaks that by requiring the APPEND flag for the new route
to be added to an existing one. Instead the prepend just adds another
route entry.
2. route replace. Existing code replaces first matching multipath route
if new route is multipath capable and fallback to first matching
non-ECMP route (reject or dev only route) in case one isn't available.
New behavior replaces first matching route. (Thanks to Ido for spotting
this one)
Note: Newer iproute2 is needed to display multipath routes with a dev-only
nexthop. This is due to a bug in iproute2 and parsing nexthops.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David Ahern [Mon, 21 May 2018 17:26:52 +0000 (10:26 -0700)]
mlxsw: spectrum_router: Add support for route append
Handle append for gateway based routes. Dev-only multipath routes will
be handled by a follow on patch.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jacob Keller [Thu, 17 May 2018 08:08:40 +0000 (01:08 -0700)]
i40e: use the more traditional 'i' loop variable
Since we no longer use i as an array index for the data variable,
replace the use of 'j' with 'i' so that we match the general loop
variable name.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Thu, 17 May 2018 08:08:39 +0000 (01:08 -0700)]
i40e: add function doc headers for ethtool stats functions
Add documentation for the i40e_get_stats_count, i40e_get_stat_strings
and i40e_get_ethtool_stats explaining that the number and ordering of
statistics must remain constant for a given netdevice.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Thu, 17 May 2018 08:08:38 +0000 (01:08 -0700)]
i40e: update data pointer directly when copying to the buffer
A future patch is going to add a helper function i40e_add_ethtool_stats
that will help lower the amount of boiler plate code in the
i40e_get_ethtool_stats function.
This conversion will take place over many patches, and the helper
function will work by directly updating a reference to the data pointer.
Since this would not work combined with the current method of accessing
data like an array, update all the code that copies stats into the data
buffer to use direct updates to the pointer instead of array accesses.
This will prevent incorrect stat updates for patches in between the
conversion.
Similarly, when copying strings, we used a separate char *p pointer.
Instead, use the data pointer directly as it's already a (u8 *) type
which is the same size.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Thu, 17 May 2018 08:08:37 +0000 (01:08 -0700)]
i40e: fold prefix strings directly into stat names
We always prefix these stats with a fixed string, so just fold this
prefix into the stat string definition. This preparatory work will make
it easier to implement a helper function to copy stats and strings into
the supplied buffers in a future patch.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Thu, 17 May 2018 08:08:36 +0000 (01:08 -0700)]
i40e: use WARN_ONCE to replace the commented BUG_ON size check
We don't really want to use BUG_ON here since that would completely
crash the kernel, thus the reason we commented it out. We *can't* use
BUILD_BUG_ON because at least now (a) the sizes aren't constant (we are
fixing this) and (b) not all compilers are smart enough to understand
that "p - data" is a constant.
Instead, just use a WARN_ONCE so that the first time we end up with an
incorrect size we will dump a stack trace and a message, hopefully
highlighting the issues early in testing.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Thu, 17 May 2018 08:08:35 +0000 (01:08 -0700)]
i40e: split i40e_get_strings() into smaller functions
Split the statistic strings and private flags strings into their own
separate functions to aid code readability.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Thu, 17 May 2018 08:08:34 +0000 (01:08 -0700)]
i40e: always return all queue stat strings
The ethtool API for obtaining device statistics is not intended to allow
runtime changes in the number of statistics reported. It may *appear*
this way, as there is an ability to request the number of stats using
ethtool_get_set_count(). However, it is expected that this must always
return the same value for invocations of the same device.
If we don't satisfy this contract, and allow the number of stats to
change during run time, we could cause invalid memory accesses or report
the stat strings incorrectly. This is because the API for obtaining
stats is to (1) get the size, (2) get the strings and finally (3) get
the stats. Since these are each separate ethtool op commands, it is not
possible to maintain consistency by holding the RTNL lock over the whole
operation. This results in the potential for a race condition to occur
where the size changed between any of the 3 calls.
Avoid this issue by requiring that we always return the same value for
a given device. We can check any values which remain constant for the
life of the device, but must not report different sizes depending on
runtime attributes.
This patch specifically fixes the queue statistics to always return
every queue even if it's not currently in use.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Thu, 17 May 2018 08:08:33 +0000 (01:08 -0700)]
i40e: always return VEB stat strings
The ethtool API for obtaining device statistics is not intended to allow
runtime changes in the number of statistics reported. It may *appear*
this way, as there is an ability to request the number of stats using
ethtool_get_set_count(). However, it is expected that this must always
return the same value for invocations of the same device.
If we don't satisfy this contract, and allow the number of stats to
change during run time, we could cause invalid memory accesses or report
the stat strings incorrectly. This is because the API for obtaining
stats is to (1) get the size, (2) get the strings and finally (3) get
the stats. Since these are each separate ethtool op commands, it is not
possible to maintain consistency by holding the RTNL lock over the whole
operation. This results in the potential for a race condition to occur
where the size changed between any of the 3 calls.
Avoid this issue by requiring that we always return the same value for
a given device. We can check any values which remain constant for the
life of the device, but must not report different sizes depending on
runtime attributes.
This patch specifically fixes the VEB statistics strings to always be
reported. Other issues will be fixed in future patches.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Jacob Keller [Thu, 17 May 2018 08:08:32 +0000 (01:08 -0700)]
i40e: free skb after clearing lock in ptp_stop
Use the same logic to free the skb after clearing the Tx timestamp bit
lock in i40e_ptp_stop as we use in the other locations. It is not as
important here since we are not racing against a future Tx timestamp
request (as we are disabling PTP at this point). However it is good to
be consistent in how we approach the bit lock so that future callers
don't copy the old anti-pattern.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Johannes Berg [Tue, 22 May 2018 09:31:59 +0000 (11:31 +0200)]
cfg80211: add missing kernel-doc
Add the kernel-doc missed earlier.
Fixes:
52539ca89f36 ("cfg80211: Expose TXQ stats and parameters to userspace")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Denis Kenzior [Tue, 22 May 2018 00:21:42 +0000 (19:21 -0500)]
nl80211: Fix compilation
Commit
7ea3e110f2f8ba23f330c2f702f556acd539bcb8 seems to have
introduced:
net/wireless/nl80211.c: In function ‘nl80211_get_station’:
net/wireless/nl80211.c:4802:34: error: incompatible type for argument 1 of ‘cfg80211_sinfo_release_content’
cfg80211_sinfo_release_content(sinfo);
^~~~~
In file included from net/wireless/nl80211.c:24:0:
./include/net/cfg80211.h:5721:20: note: expected ‘struct station_info *’ but argument is of type ‘struct station_info’
static inline void cfg80211_sinfo_release_content(struct station_info *sinfo)
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Fixes:
7ea3e110f2f8 ("cfg80211: release station info tidstats where needed")
Signed-off-by: Denis Kenzior <denkenz@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
David S. Miller [Mon, 21 May 2018 20:17:11 +0000 (16:17 -0400)]
Merge branch 'TI-Ethernet-driver-warnings-fixes'
Florian Fainelli says:
====================
TI Ethernet driver warnings fixes
This patch series attempts to fix properly the warnings observed with turning
on COMPILE_TEST and TI Ethernet drivers on 64-bit hosts.
Since I don't have any of this hardware, please review carefully for possible
breakage!
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Mon, 21 May 2018 18:45:55 +0000 (11:45 -0700)]
ti: ethernet: davinci: Fix cast to int warnings
Now that we can compile test this driver on 64-bit hosts, we get some
warnings about how a pointer/address is written/read to/from a register
(sw_token). Fix this by doing the appropriate conversions, we cannot
possibly have the driver work on 64-bit hosts the way the tokens are
managed though, since the registers being written to a 32-bit only.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Mon, 21 May 2018 18:45:54 +0000 (11:45 -0700)]
net: ethernet: davinci_emac: Fix printing of base address
Use %pa which is the correct formatter to print a physical address,
instead of %p which is just a pointer.
Fixes:
a6286ee630f6 ("net: Add TI DaVinci EMAC driver")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Mon, 21 May 2018 18:45:53 +0000 (11:45 -0700)]
net: ethernet: ti: cpsw: Fix cpsw_add_ch_strings() printk format
When building on a 64-bit host we will get the following warning:
drivers/net/ethernet/ti/cpsw.c: In function 'cpsw_add_ch_strings':
drivers/net/ethernet/ti/cpsw.c:1284:19: warning: format '%d' expects
argument of type 'int', but argument 5 has type 'long unsigned int'
[-Wformat=]
"%s DMA chan %d: %s", rx_dir ? "Rx" : "Tx",
~^
%ld
Fix this by using an %ld format and casting to long.
Fixes:
e05107e6b747 ("net: ethernet: ti: cpsw: add multi queue support")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Florian Fainelli [Mon, 21 May 2018 18:45:52 +0000 (11:45 -0700)]
net: ethernet: ti: cpts: Fix timestamp print
On 64-bit hosts we will get the following warning:
drivers/net/ethernet/ti/cpts.c: In function 'cpts_overflow_check':
drivers/net/ethernet/ti/cpts.c:297:11: warning: format '%lld' expects
argument of type 'long long int', but argument 3 has type
'__kernel_time_t {aka long int}' [-Wformat=]
pr_debug("cpts overflow check at %lld.%09lu\n", ts.tv_sec,
ts.tv_nsec);
Fix this by using an appropriate casting that works on all bit sizes.
Fixes:
a5c79c26e168 ("ptp: cpts: convert to the 64 bit get/set time methods.")
Fixes:
87c0e764d43a ("cpts: introduce time stamping code and a PTP hardware clock.")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>