Peng Li [Thu, 15 Nov 2018 09:29:24 +0000 (09:29 +0000)]
net: hns3: Add skb chain when num of RX buf exceeds MAX_SKB_FRAGS
MAX_SKB_FRAGS in protocol stack is defined as:
MAX_SKB_FRAGS is 17 when PAGE_SIZE is 4K. If HW enable GRO, it may
merge small packets and the rx buffer may be more than
MAX_SKB_FRAGS. So driver will add skb chain when RX buffer num.
more than MAX_SKB_FRAGS.
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Peng Li [Thu, 15 Nov 2018 09:29:23 +0000 (09:29 +0000)]
net: hns3: Add support for ethtool -K to enable/disable HW GRO
This patch adds support of ethtool -K to enable/disable
hardware GRO in HNS3 PF/VF driver.
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Peng Li [Thu, 15 Nov 2018 09:29:22 +0000 (09:29 +0000)]
net: hns3: Add handling of GRO Pkts not fully RX'ed in NAPI poll
The "FE bit" in the description means the last description for
a packets. When HW GRO enable, HW write data to ring every
packet/buffer, there is greater probability that driver handle
with the describtion but HW still not set the "FE bit".
When drier handle the packet and HW still not set "FE bit",
driver stores skb and bd_num in rx ring, and continue to use the
skb and bd_num in next napi.
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Peng Li [Thu, 15 Nov 2018 09:29:21 +0000 (09:29 +0000)]
net: hns3: Enable HW GRO for Rev B(=0x21) HNS3 hardware
HNS3 hardware Revision B(=0x21) supports Hardware GRO feature. This
patch enables this feature in the HNS3 PF/VF driver.
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Heiner Kallweit [Sun, 11 Nov 2018 20:49:12 +0000 (21:49 +0100)]
net: phy: icplus: add config_intr callback
Move IRQ configuration for IP101A/G from config_init to config_intr
callback. Reasons:
1. This allows phylib to disable interrupts if needed.
2. Icplus was the only driver supporting interrupts w/o defining a
config_intr callback. Now we can add a phylib plausibility check
disabling interrupt mode if one of the two irq-related callbacks
isn't defined.
I don't own hardware with this PHY, and the change is based on the
datasheet for IP101A LF (which is supposed to be register-compatible
with IP101A/G). Change is compile-tested only.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.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>
David S. Miller [Wed, 14 Nov 2018 16:51:28 +0000 (08:51 -0800)]
Merge branch 'nfp-abm-track-all-Qdiscs'
Jakub Kicinski says:
====================
nfp: abm: track all Qdiscs
Our Qdisc offload so far has been very simplistic. We held
and array of marking thresholds and statistics sized to the
number of PF queues. This was sufficient since the only
configuration we supported was single layer of RED Qdiscs
(on top of MQ or not, but MQ isn't really about queuing).
As we move to add more Qdiscs it's time to actually try to
track the full Qdisc hierarchy. This allows us to make sure
our offloaded configuration reflects the SW path better.
We add graft notifications to MQ and RED (PRIO already sends
them) to allow drivers offloading those to learn how Qdiscs
are linked. MQ graft gives us the obvious advantage of being
able to track when Qdiscs are shared or moved. It seems
unlikely HW would offload RED's child Qdiscs but since the
behaviour would change based on linked child we should
stop offloading REDs with modified child. RED will also
handle the child differently during reconfig when limit
parameter is set - so we have to inform the drivers about
the limit, and have them reset the child state when
appropriate.
The NFP driver will now allocate a structure to track each
Qdisc and link it to its children. We will also maintain
a shadow copy of threshold settings - to save device writes
and make it easier to apply defaults when config is
re-evaluated.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Mon, 12 Nov 2018 22:58:19 +0000 (14:58 -0800)]
nfp: abm: restructure Qdisc handling
In preparation of handling more Qdisc types switch to a different
offload strategy. We have now recreated the Qdisc hierarchy in
the driver. Every time the hierarchy changes parse it, and update
the configuration of the HW accordingly.
While at it drop the support of pretending that we can instantiate
a single queue on a multi-queue device in HW/FW. MQ is now required,
and each queue will have its own instance of RED.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Mon, 12 Nov 2018 22:58:18 +0000 (14:58 -0800)]
nfp: abm: save RED's parameters
Use the new driver Qdisc structure to keep track of parameters
of RED Qdiscs. This way as the Qdisc moves around in the hierarchy
we will be able to configure the HW appropriately.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Mon, 12 Nov 2018 22:58:17 +0000 (14:58 -0800)]
nfp: abm: reset RED's child based on limit
RED qdisc will replace its child Qdisc with a new FIFO queue if
it is reconfigured and the limit parameter is not 0.
This means that when it's created with limit of 0 it will have no FIFO,
and all packets will be dropped. If it's changed and limit is specified
it will loose its existing child (implicit graft). Make sure we mark
RED Qdisc child as NFP_QDISC_UNTRACKED if its not the expected FIFO.
nfp_abm_qdisc_replace() will return 1 if Qdisc already existed.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Mon, 12 Nov 2018 22:58:16 +0000 (14:58 -0800)]
net: sched: red: notify drivers about RED's limit parameter
RED qdisc's limit parameter changes the behaviour of the qdisc,
for instance if it's set to 0 qdisc will drop all the packets.
When replace operation happens and parameter is set to non-0
a new fifo qdisc will be instantiated and replace the old child
qdisc which will be destroyed.
Drivers need to know the parameter, even if they don't impose
the actual limit to be able to reliably reconstruct the Qdisc
hierarchy.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Mon, 12 Nov 2018 22:58:15 +0000 (14:58 -0800)]
nfp: abm: build full Qdisc hierarchy based on graft notifications
Using graft notifications recreate in the driver the full Qdisc
hierarchy. Keep track of how many times each Qdisc is attached
to the hierarchy to make sure we don't offload Qdiscs which are
attached multiple times (device queues can't be shared). For
graft events of Qdiscs we don't know exist make the child as
invalid/untracked.
Note that MQ Qdisc doesn't send destruction events reliably when
device is dismantled, so we need to manually clean out the
children otherwise we'd think Qdiscs which are still in use
are getting freed.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Mon, 12 Nov 2018 22:58:14 +0000 (14:58 -0800)]
net: sched: mq: offload a graft notification
Drivers offloading Qdiscs should have reasonable certainty
the offloaded behaviour matches the SW path. This is impossible
if the driver does not know about all Qdiscs or when Qdiscs move
and are reused. Send a graft notification from MQ.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Mon, 12 Nov 2018 22:58:13 +0000 (14:58 -0800)]
net: sched: red: offload a graft notification
Drivers offloading Qdiscs should have reasonable certainty
the offloaded behaviour matches the SW path. This is impossible
if the driver does not know about all Qdiscs or when Qdiscs move
and are reused. Send a graft notification from RED. The drivers
are expected to simply stop offloading the Qdisc, if a non-standard
child is ever grafted onto it.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Mon, 12 Nov 2018 22:58:12 +0000 (14:58 -0800)]
nfp: abm: allocate Qdisc child table
To keep track of Qdisc hierarchy allocate a table for children
for each Qdisc. RED Qdisc can only have one child.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Mon, 12 Nov 2018 22:58:11 +0000 (14:58 -0800)]
nfp: abm: remember which Qdisc is root
Keep track of which Qdisc is currently root. We need to implement
TC_SETUP_ROOT_QDISC handling, and for completeness also clear the
root Qdisc pointer when it's freed. TC_SETUP_ROOT_QDISC isn't always
sent when device is dismantled.
Remembering the root Qdisc will allow us to build the entire hierarchy
in following patches.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Mon, 12 Nov 2018 22:58:10 +0000 (14:58 -0800)]
net: sched: provide notification for graft on root
Drivers are currently not notified when a Qdisc is grafted as root.
This requires special casing Qdiscs added with parent = TC_H_ROOT in
the driver. Also there is no notification sent to the driver when
an existing Qdisc is grafted as root.
Add this very simple notifications, drivers should now be able to
track their Qdisc tree fully.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Mon, 12 Nov 2018 22:58:09 +0000 (14:58 -0800)]
nfp: abm: track all offload-enabled qdiscs
Allocate an object corresponding to any offloaded qdisc we are
informed about by the kernel. Not only the qdiscs we have a
chance of offloading.
The count of created objects will be used to decide whether
the ethtool TC offload can be disabled, since otherwise we may
miss destroy commands.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Mon, 12 Nov 2018 22:58:08 +0000 (14:58 -0800)]
nfp: abm: keep track of all RED thresholds
Instead of writing the threshold out when Qdisc is configured
and not remembering it move to a scheme where we remember all
thresholds. When configuration changes parse the offloaded
Qdiscs and set thresholds appropriately.
This will help future extensions.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jakub Kicinski [Mon, 12 Nov 2018 22:58:07 +0000 (14:58 -0800)]
nfp: abm: rename qdiscs -> red_qdiscs
Rename qdiscs member to red_qdiscs. One of following patches will
use the name qdiscs for tracking all qdisc types.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 14 Nov 2018 16:48:37 +0000 (08:48 -0800)]
Merge branch 'aquantia-add-rx-flow-filter-support'
Igor Russkikh says:
====================
net: aquantia: add rx-flow filter support
In this patchset the rx-flow filters functionality and vlan filter offloads
are implemented.
The rules in NIC hardware have fixed order and priorities.
To support this, the locations of filters from ethtool perspective are also fixed:
* Locations 0 - 15 for VLAN ID filters
* Locations 16 - 31 for L2 EtherType and PCP filters
* Locations 32 - 39 for L3/L4 5-tuple filters (locations 32, 36 for IPv6)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Dmitry Bogdanov [Mon, 12 Nov 2018 15:46:09 +0000 (15:46 +0000)]
net: aquantia: add support of rx-vlan-filter offload
Since it uses the same NIC table as rx flow vlan filter therefore
rx-flow vlan filter accepts only vlans that present on the interface
in case of rx-vlan-filter is on.
Signed-off-by: Dmitry Bogdanov <dmitry.bogdanov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dmitry Bogdanov [Mon, 12 Nov 2018 15:46:07 +0000 (15:46 +0000)]
net: aquantia: add ethertype and PCP to rx flow filters
L2 EtherType filters allows to filter packet by EtherType field or
both EtherType and User Priority (PCP) field of 802.1Q.
UserPriority (vlan) parameter must be accompanied by mask 0x1FFF. That
is to distinguish VLAN filter from L2 Ethertype filter with
UserPriority since both User Priority and VLAN ID are passed in the
same 'vlan' parameter.
Example:
To add a filter that directs IP4 packess of priority 3 to queue 3:
ethtool -N <ethX> flow-type ether proto 0x800 vlan 0x600 m 0x1FFF \
action 3 loc 16
Signed-off-by: Dmitry Bogdanov <dmitry.bogdanov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dmitry Bogdanov [Mon, 12 Nov 2018 15:46:05 +0000 (15:46 +0000)]
net: aquantia: add vlan id to rx flow filters
The VLAN filter (VLAN id) is compared against 16 filters.
VLAN id must be accompanied by mask 0xF000. That is to distinguish
VLAN filter from L2 Ethertype filter with UserPriority since both
User Priority and VLAN ID are passed in the same 'vlan' parameter.
Flow type may be any as it is not matched for VLAN filter.
Due to fixed order of the rules in the NIC, the location 0-15 are
reserved for vlan filters.
Example:
To add a rule that directs packets from VLAN 2001 to queue 5:
ethtool -N <ethX> flow-type ip4 vlan 2001 m 0xF000 action 5 loc 0
Signed-off-by: Dmitry Bogdanov <dmitry.bogdanov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dmitry Bogdanov [Mon, 12 Nov 2018 15:46:02 +0000 (15:46 +0000)]
net: aquantia: add support of L3/L4 ntuple filters
Add support of L3/L4 5-tuple {protocol, src-ip, dst-ip, src-port, dst-port}
filters. Mask is not supported. Src-port and dst-port are only compared for
TCP/UDP/SCTP packets. Both IPv4 and IPv6 are supported.
The supported actions are the drop and the queue assignment.
Due to fixed order of the rules in the NIC, the location 32-39 are
reserved for L3/L4 5-tuple filters. The locations 32 and 36 are
reserved for IPv6 filters.
Examples:
sudo ethtool -N eth0 flow-type ip6 src-ip 2001:db8:0:f101::2 \
dst-ip 2001:db8:0:f101::5 action -1 loc 36
sudo ethtool -N eth0 flow-type udp4 src-ip 10.0.0.4 \
dst-ip 10.0.0.7 src-port 2000 dst-port 2001 action 2 loc 32
Signed-off-by: Dmitry Bogdanov <dmitry.bogdanov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dmitry Bogdanov [Mon, 12 Nov 2018 15:46:00 +0000 (15:46 +0000)]
net: aquantia: add infrastructure for ntuple rules
Add infrastructure to support ntuple filter configuration.
Add rule, remove rule, reapply on interface up.
Signed-off-by: Dmitry Bogdanov <dmitry.bogdanov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dmitry Bogdanov [Mon, 12 Nov 2018 15:45:58 +0000 (15:45 +0000)]
net: aquantia: add rx-flow filter definitions
Add missing register definitions and the functions accessing them
related to rx-flow filters.
Signed-off-by: Dmitry Bogdanov <dmitry.bogdanov@aquantia.com>
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Wed, 14 Nov 2018 00:30:00 +0000 (16:30 -0800)]
Merge branch 'cpsw-allow-vlan-h-w-timestamping'
Ivan Khoronzhuk says:
====================
net: ethernet: ti: cpsw: allow vlan h/w timestamping
The patchset adds several improvements and allows vlan h/w ts.
Based on net-next/master
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Ivan Khoronzhuk [Mon, 12 Nov 2018 14:00:23 +0000 (16:00 +0200)]
net: ethernet: ti: cpsw: allow vlan tagged packets to be timestamped
Allow vlan tagged packets to be timestamped, as no any restrictions
for this.
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ivan Khoronzhuk [Mon, 12 Nov 2018 14:00:22 +0000 (16:00 +0200)]
net: ethernet: ti: cpts: move enable/disable flags outside of cpts module
Each slave has it's own receive timestamp filter. But cpts rx/tx
timestamp enable flags are used to allow ts retrieve only for one
user. This limitation causes data path redundancy and setting overlap
if cpsw module is in dual-mac mode for instance.
If rx ts is enabled only for one port - the second interface must expect
every incoming packet to be PTP packet w/o absolutely any reason, and if
it's PTP - do unneeded stuff, as rx filter for second port is not set
and cpts fifo is not supposed to contain appropriate ts event.
That's not correct.
So, to fix control overlap and avoid redundant CPU cycles, the patch
splits rx/tx ts enable flags between network devices. After the patch,
PTP timestamping still should be used for only one port (or PTP id
counter has to be different for both ports as cpts IP is common).
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ivan Khoronzhuk [Mon, 12 Nov 2018 14:00:21 +0000 (16:00 +0200)]
net: ethernet: ti: cpts: purge staled skbs from txq
The overflow event is running with 1 jiffy in case if txq is not
empty, but it can be emptied completely only if next tx event
consumes skb or deletes staled skb from the txq. In case of staled
skb, that can happen for some unpredictable reason (the ts event was
lost or timed out), the overflow event can be generated quite long
time consuming CPU w/o reason before next tx event happens. To avoid
it, purge txq before increasing overflow event rate.
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Ivan Khoronzhuk [Mon, 12 Nov 2018 14:00:20 +0000 (16:00 +0200)]
net: ethernet: ti: cpts: correct debug for expired txq skb
The msgtype and seqid that is smth that belongs to event for
comparison but not for staled txq skb.
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Colin Ian King [Mon, 12 Nov 2018 23:45:56 +0000 (23:45 +0000)]
net: phy: check if advertising is zero using linkmode_empty
A recent change modified variable advertising from a u32 to a link mode
array and left the u32 zero comparison, so essential we now have an array
being compared to null which is not the intention. Fix this by using the
call to linkmode_empty to check if advertising is all zero.
Detected by CoverityScan, CID#
1475424 ("Array compared against 0")
Fixes: 3c1bcc8614db ("net: ethernet: Convert phydev advertize and supported from u32 to link mode")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 12 Nov 2018 17:09:51 +0000 (09:09 -0800)]
Merge branch 'sctp-add-support-for-sk_reuseport'
Xin Long says:
====================
sctp: add support for sk_reuseport
sctp sk_reuseport allows multiple socks to listen on the same port and
addresses, as long as these socks have the same uid. This works pretty
much as TCP/UDP does, the only difference is that sctp is multi-homing
and all the bind_addrs in these socks will have to completely matched,
otherwise listen() will return err.
The below is when 5 sockets are listening on 172.16.254.254:6400 on a
server, 26 sockets on a client connect to 172.16.254.254:6400 and each
may be processed by a different socket on the server which is selected
by hash(lport, pport, paddr) in reuseport_select_sock():
# ss --sctp -nn
State Recv-Q Send-Q Local Address:Port Peer Address:Port
LISTEN 0 10 172.16.254.254:6400 *:*
`- ESTAB 0 0 172.16.254.254%eth1:6400 172.16.2.1:1234
`- ESTAB 0 0 172.16.254.254%eth1:6400 172.16.2.4:1234
`- ESTAB 0 0 172.16.254.254%eth1:6400 172.16.3.3:1234
`- ESTAB 0 0 172.16.254.254%eth1:6400 172.16.3.4:1234
`- ESTAB 0 0 172.16.254.254%eth1:6400 172.16.5.2:1234
`- ESTAB 0 0 172.16.254.254%eth1:6400 172.16.5.3:1234
LISTEN 0 10 172.16.254.254:6400 *:*
`- ESTAB 0 0 172.16.254.254%eth1:6400 172.16.1.3:1234
`- ESTAB 0 0 172.16.254.254%eth1:6400 172.16.1.4:1234
`- ESTAB 0 0 172.16.254.254%eth1:6400 172.16.3.2:1234
`- ESTAB 0 0 172.16.254.254%eth1:6400 172.16.4.1:1234
`- ESTAB 0 0 172.16.254.254%eth1:6400 172.16.4.2:1234
`- ESTAB 0 0 172.16.254.254%eth1:6400 172.16.4.3:1234
`- ESTAB 0 0 172.16.254.254%eth1:6400 172.16.4.4:1234
LISTEN 0 10 172.16.254.254:6400 *:*
`- ESTAB 0 0 172.16.254.254%eth1:6400 172.16.1.2:1234
`- ESTAB 0 0 172.16.254.254%eth1:6400 172.16.3.5:1234
`- ESTAB 0 0 172.16.254.254%eth1:6400 172.16.4.5:1234
`- ESTAB 0 0 172.16.254.254%eth1:6400 172.16.253.253:1234
LISTEN 0 10 172.16.254.254:6400 *:*
`- ESTAB 0 0 172.16.254.254%eth1:6400 172.16.2.2:1234
`- ESTAB 0 0 172.16.254.254%eth1:6400 172.16.2.3:1234
`- ESTAB 0 0 172.16.254.254%eth1:6400 172.16.5.4:1234
`- ESTAB 0 0 172.16.254.254%eth1:6400 172.16.5.5:1234
LISTEN 0 10 172.16.254.254:6400 *:*
`- ESTAB 0 0 172.16.254.254%eth1:6400 172.16.1.1:1234
`- ESTAB 0 0 172.16.254.254%eth1:6400 172.16.1.5:1234
`- ESTAB 0 0 172.16.254.254%eth1:6400 172.16.2.5:1234
`- ESTAB 0 0 172.16.254.254%eth1:6400 172.16.3.1:1234
`- ESTAB 0 0 172.16.254.254%eth1:6400 172.16.5.1:1234
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Xin Long [Mon, 12 Nov 2018 10:27:17 +0000 (18:27 +0800)]
sctp: process sk_reuseport in sctp_get_port_local
When socks' sk_reuseport is set, the same port and address are allowed
to be bound into these socks who have the same uid.
Note that the difference from sk_reuse is that it allows multiple socks
to listen on the same port and address.
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Xin Long [Mon, 12 Nov 2018 10:27:16 +0000 (18:27 +0800)]
sctp: add sock_reuseport for the sock in __sctp_hash_endpoint
This is a part of sk_reuseport support for sctp. It defines a helper
sctp_bind_addrs_check() to check if the bind_addrs in two socks are
matched. It will add sock_reuseport if they are completely matched,
and return err if they are partly matched, and alloc sock_reuseport
if all socks are not matched at all.
It will work until sk_reuseport support is added in
sctp_get_port_local() in the next patch.
v1->v2:
- use 'laddr->valid && laddr2->valid' check instead as Marcelo
pointed in sctp_bind_addrs_check().
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Xin Long [Mon, 12 Nov 2018 10:27:15 +0000 (18:27 +0800)]
sctp: do reuseport_select_sock in __sctp_rcv_lookup_endpoint
This is a part of sk_reuseport support for sctp, and it selects a
sock by the hashkey of lport, paddr and dport by default. It will
work until sk_reuseport support is added in sctp_get_port_local()
in the next patch.
v1->v2:
- define lport as __be16 instead of __be32 as Marcelo pointed in
__sctp_rcv_lookup_endpoint().
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
YueHaibing [Mon, 12 Nov 2018 01:47:30 +0000 (01:47 +0000)]
net: phy: marvell: remove set but not used variable 'pause'
Fixes gcc '-Wunused-but-set-variable' warning:
drivers/net/phy/marvell.c: In function 'm88e1510_config_init':
drivers/net/phy/marvell.c:850:7: warning:
variable 'pause' set but not used [-Wunused-but-set-variable]
It not used any more after commit
3c1bcc8614db ("net: ethernet: Convert phydev
advertize and supported from u32 to link mode")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Mon, 12 Nov 2018 01:57:54 +0000 (17:57 -0800)]
Merge git://git./linux/kernel/git/davem/net
Linus Torvalds [Sun, 11 Nov 2018 23:12:31 +0000 (17:12 -0600)]
Linux 4.20-rc2
Linus Torvalds [Sun, 11 Nov 2018 23:09:48 +0000 (17:09 -0600)]
Merge git://git./linux/kernel/git/davem/net
Pull networking fixes from David Miller:
"One last pull request before heading to Vancouver for LPC, here we have:
1) Don't forget to free VSI contexts during ice driver unload, from
Victor Raj.
2) Don't forget napi delete calls during device remove in ice driver,
from Dave Ertman.
3) Don't request VLAN tag insertion of ibmvnic device when SKB
doesn't have VLAN tags at all.
4) IPV4 frag handling code has to accomodate the situation where two
threads try to insert the same fragment into the hash table at the
same time. From Eric Dumazet.
5) Relatedly, don't flow separate on protocol ports for fragmented
frames, also from Eric Dumazet.
6) Memory leaks in qed driver, from Denis Bolotin.
7) Correct valid MTU range in smsc95xx driver, from Stefan Wahren.
8) Validate cls_flower nested policies properly, from Jakub Kicinski.
9) Clearing of stats counters in mc88e6xxx driver doesn't retain
important bits in the G1_STATS_OP register causing the chip to
hang. Fix from Andrew Lunn"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (41 commits)
act_mirred: clear skb->tstamp on redirect
net: dsa: mv88e6xxx: Fix clearing of stats counters
tipc: fix link re-establish failure
net: sched: cls_flower: validate nested enc_opts_policy to avoid warning
net: mvneta: correct typo
flow_dissector: do not dissect l4 ports for fragments
net: qualcomm: rmnet: Fix incorrect assignment of real_dev
net: aquantia: allow rx checksum offload configuration
net: aquantia: invalid checksumm offload implementation
net: aquantia: fixed enable unicast on 32 macvlan
net: aquantia: fix potential IOMMU fault after driver unbind
net: aquantia: synchronized flow control between mac/phy
net: smsc95xx: Fix MTU range
net: stmmac: Fix RX packet size > 8191
qed: Fix potential memory corruption
qed: Fix SPQ entries not returned to pool in error flows
qed: Fix blocking/unlimited SPQ entries leak
qed: Fix memory/entry leak in qed_init_sp_request()
inet: frags: better deal with smp races
net: hns3: bugfix for not checking return value
...
Linus Torvalds [Sun, 11 Nov 2018 22:57:55 +0000 (16:57 -0600)]
Merge tag 'kbuild-fixes-v4.20' of git://git./linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild fixes from Masahiro Yamada:
- fix build errors in binrpm-pkg and bindeb-pkg targets
- fix false positive matches in merge_config.sh
- fix build version mismatch in deb-pkg target
- fix dtbs_install handling in (bin)deb-pkg target
- revert a commit that allows setlocalversion to write to source tree
* tag 'kbuild-fixes-v4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
builddeb: Fix inclusion of dtbs in debian package
Revert "scripts/setlocalversion: git: Make -dirty check more robust"
kbuild: deb-pkg: fix too low build version number
kconfig: merge_config: avoid false positive matches from comment lines
kbuild: deb-pkg: fix bindeb-pkg breakage when O= is used
kbuild: rpm-pkg: fix binrpm-pkg breakage when O= is used
Linus Torvalds [Sun, 11 Nov 2018 22:54:38 +0000 (16:54 -0600)]
Merge tag 'for-4.20-rc1-tag' of git://git./linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"Several fixes to recent release (4.19, fixes tagged for stable) and
other fixes"
* tag 'for-4.20-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
Btrfs: fix missing delayed iputs on unmount
Btrfs: fix data corruption due to cloning of eof block
Btrfs: fix infinite loop on inode eviction after deduplication of eof block
Btrfs: fix deadlock on tree root leaf when finding free extent
btrfs: avoid link error with CONFIG_NO_AUTO_INLINE
btrfs: tree-checker: Fix misleading group system information
Btrfs: fix missing data checksums after a ranged fsync (msync)
btrfs: fix pinned underflow after transaction aborted
Btrfs: fix cur_offset in the error case for nocow
Linus Torvalds [Sun, 11 Nov 2018 22:53:02 +0000 (16:53 -0600)]
Merge tag 'ext4_for_linus_stable' of git://git./linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
"A large number of ext4 bug fixes, mostly buffer and memory leaks on
error return cleanup paths"
* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: missing !bh check in ext4_xattr_inode_write()
ext4: fix buffer leak in __ext4_read_dirblock() on error path
ext4: fix buffer leak in ext4_expand_extra_isize_ea() on error path
ext4: fix buffer leak in ext4_xattr_move_to_block() on error path
ext4: release bs.bh before re-using in ext4_xattr_block_find()
ext4: fix buffer leak in ext4_xattr_get_block() on error path
ext4: fix possible leak of s_journal_flag_rwsem in error path
ext4: fix possible leak of sbi->s_group_desc_leak in error path
ext4: remove unneeded brelse call in ext4_xattr_inode_update_ref()
ext4: avoid possible double brelse() in add_new_gdb() on error path
ext4: avoid buffer leak in ext4_orphan_add() after prior errors
ext4: avoid buffer leak on shutdown in ext4_mark_iloc_dirty()
ext4: fix possible inode leak in the retry loop of ext4_resize_fs()
ext4: fix missing cleanup if ext4_alloc_flex_bg_array() fails while resizing
ext4: add missing brelse() update_backups()'s error path
ext4: add missing brelse() add_new_gdb_meta_bg()'s error path
ext4: add missing brelse() in set_flexbg_block_bitmap()'s error path
ext4: avoid potential extra brelse in setup_new_flex_group_blocks()
Linus Torvalds [Sun, 11 Nov 2018 22:41:50 +0000 (16:41 -0600)]
Merge branch 'x86-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"A set of x86 fixes:
- Cure the LDT remapping to user space on 5 level paging which ended
up in the KASLR space
- Remove LDT mapping before freeing the LDT pages
- Make NFIT MCE handling more robust
- Unbreak the VSMP build by removing the dependency on paravirt ops
- Support broken PIT emulation on Microsoft hyperV
- Don't trace vmware_sched_clock() to avoid tracer recursion
- Remove -pipe from KBUILD CFLAGS which breaks clang and is also
slower on GCC
- Trivial coding style and typo fixes"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/cpu/vmware: Do not trace vmware_sched_clock()
x86/vsmp: Remove dependency on pv_irq_ops
x86/ldt: Remove unused variable in map_ldt_struct()
x86/ldt: Unmap PTEs for the slot before freeing LDT pages
x86/mm: Move LDT remap out of KASLR region on 5-level paging
acpi/nfit, x86/mce: Validate a MCE's address before using it
acpi/nfit, x86/mce: Handle only uncorrectable machine checks
x86/build: Remove -pipe from KBUILD_CFLAGS
x86/hyper-v: Fix indentation in hv_do_fast_hypercall16()
Documentation/x86: Fix typo in zero-page.txt
x86/hyper-v: Enable PIT shutdown quirk
clockevents/drivers/i8253: Add support for PIT shutdown quirk
Linus Torvalds [Sun, 11 Nov 2018 22:39:12 +0000 (16:39 -0600)]
Merge branch 'perf-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull perf fixes from Thomas Gleixner:
"A bunch of perf tooling fixes:
- Make the Intel PT SQL viewer more robust
- Make the Intel PT debug log more useful
- Support weak groups in perf record so it's behaving the same way as
perf stat
- Display the LBR stats in callchain entries properly in perf top
- Handle different PMu names with common prefix properlin in pert
stat
- Start syscall augmenting in perf trace. Preparation for
architecture independent eBPF instrumentation of syscalls.
- Fix build breakage in JVMTI perf lib
- Fix arm64 tools build failure wrt smp_load_{acquire,release}"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf tools: Do not zero sample_id_all for group members
perf tools: Fix undefined symbol scnprintf in libperf-jvmti.so
perf beauty: Use SRCARCH, ARCH=x86_64 must map to "x86" to find the headers
perf intel-pt: Add MTC and CYC timestamps to debug log
perf intel-pt: Add more event information to debug log
perf scripts python: exported-sql-viewer.py: Fix table find when table re-ordered
perf scripts python: exported-sql-viewer.py: Add help window
perf scripts python: exported-sql-viewer.py: Add Selected branches report
perf scripts python: exported-sql-viewer.py: Fall back to /usr/local/lib/libxed.so
perf top: Display the LBR stats in callchain entry
perf stat: Handle different PMU names with common prefix
perf record: Support weak groups
perf evlist: Move perf_evsel__reset_weak_group into evlist
perf augmented_syscalls: Start collecting pathnames in the BPF program
perf trace: Fix setting of augmented payload when using eBPF + raw_syscalls
perf trace: When augmenting raw_syscalls plug raw_syscalls:sys_exit too
perf examples bpf: Start augmenting raw_syscalls:sys_{start,exit}
tools headers barrier: Fix arm64 tools build failure wrt smp_load_{acquire,release}
Linus Torvalds [Sun, 11 Nov 2018 22:37:41 +0000 (16:37 -0600)]
Merge branch 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull timer fix from Thomas Gleixner:
"Just the removal of a redundant call into the sched deadline overrun
check"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
posix-cpu-timers: Remove useless call to check_dl_overrun()
Linus Torvalds [Sun, 11 Nov 2018 22:33:00 +0000 (16:33 -0600)]
Merge branch 'sched/urgent' of git://git./linux/kernel/git/tip/tip
Pull scheduler fixes from Thomas Gleixner:
"Two small scheduler fixes:
- Take hotplug lock in sched_init_smp(). Technically not really
required, but lockdep will complain other.
- Trivial comment fix in sched/fair"
* 'sched/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/fair: Fix a comment in task_numa_fault()
sched/core: Take the hotplug lock in sched_init_smp()
Linus Torvalds [Sun, 11 Nov 2018 22:18:10 +0000 (16:18 -0600)]
Merge branch 'locking-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull locking build fix from Thomas Gleixner:
"A single fix for a build fail with CONFIG_PROFILE_ALL_BRANCHES=y in
the qspinlock code"
* 'locking-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/qspinlock: Fix compile error
Linus Torvalds [Sun, 11 Nov 2018 22:14:05 +0000 (16:14 -0600)]
Merge branch 'core-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull core fixes from Thomas Gleixner:
"A couple of fixlets for the core:
- Kernel doc function documentation fixes
- Missing prototypes for weak watchdog functions"
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
resource/docs: Complete kernel-doc style function documentation
watchdog/core: Add missing prototypes for weak functions
resource/docs: Fix new kernel-doc warnings
Heiner Kallweit [Sun, 11 Nov 2018 19:31:21 +0000 (20:31 +0100)]
PCI: add USR vendor id and use it in r8169 and w6692 driver
The PCI vendor id of U.S. Robotics isn't defined in pci_ids.h so far,
only ISDN driver w6692 has a private definition. Move the definition
to pci_ids.h and use it in the r8169 driver too.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Sun, 11 Nov 2018 17:11:31 +0000 (09:11 -0800)]
net_sched: sch_fq: add dctcp-like marking
Similar to
80ba92fa1a92 ("codel: add ce_threshold attribute")
After EDT adoption, it became easier to implement DCTCP-like CE marking.
In many cases, queues are not building in the network fabric but on
the hosts themselves.
If packets leaving fq missed their Earliest Departure Time by XXX usec,
we mark them with ECN CE. This gives a feedback (after one RTT) to
the sender to slow down and find better operating mode.
Example :
tc qd replace dev eth0 root fq ce_threshold 2.5ms
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Sun, 11 Nov 2018 15:34:28 +0000 (07:34 -0800)]
tcp: tsq: no longer use limit_output_bytes for paced flows
FQ pacing guarantees that paced packets queued by one flow do not
add head-of-line blocking for other flows.
After TCP GSO conversion, increasing limit_output_bytes to 1 MB is safe,
since this maps to 16 skbs at most in qdisc or device queues.
(or slightly more if some drivers lower {gso_max_segs|size})
We still can queue at most 1 ms worth of traffic (this can be scaled
by wifi drivers if they need to)
Tested:
# ethtool -c eth0 | egrep "tx-usecs:|tx-frames:" # 40 Gbit mlx4 NIC
tx-usecs: 16
tx-frames: 16
# tc qdisc replace dev eth0 root fq
# for f in {1..10};do netperf -P0 -H lpaa24,6 -o THROUGHPUT;done
Before patch:
27711
26118
27107
27377
27712
27388
27340
27117
27278
27509
After patch:
37434
36949
36658
36998
37711
37291
37605
36659
36544
37349
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 11 Nov 2018 21:54:54 +0000 (13:54 -0800)]
Merge branch 'tcp-tso-defer-improvements'
Eric Dumazet says:
====================
tcp: tso defer improvements
This series makes tcp_tso_should_defer() a bit smarter :
1) MSG_EOR gives a hint to TCP to not defer some skbs
2) Second patch takes into account that head tstamp
can be in the future.
3) Third patch uses existing high resolution state variables
to have a more precise heuristic.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Sun, 11 Nov 2018 14:41:31 +0000 (06:41 -0800)]
tcp: get rid of tcp_tso_should_defer() dependency on HZ/jiffies
tcp_tso_should_defer() first heuristic is to not defer
if last send is "old enough".
Its current implementation uses jiffies and its low granularity.
TSO autodefer performance should not rely on kernel HZ :/
After EDT conversion, we have state variables in nanoseconds that
can allow us to properly implement the heuristic.
This patch increases TSO chunk sizes on medium rate flows,
especially when receivers do not use GRO or similar aggregation.
It also reduces bursts for HZ=100 or HZ=250 kernels, making TCP
behavior more uniform.
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>
Eric Dumazet [Sun, 11 Nov 2018 14:41:30 +0000 (06:41 -0800)]
tcp: refine tcp_tso_should_defer() after EDT adoption
tcp_tso_should_defer() last step tries to check if the probable
next ACK packet is coming in less than half rtt.
Problem is that the head->tstamp might be in the future,
so we need to use signed arithmetics to avoid overflows.
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>
Eric Dumazet [Sun, 11 Nov 2018 14:41:29 +0000 (06:41 -0800)]
tcp: do not try to defer skbs with eor mark (MSG_EOR)
Applications using MSG_EOR are giving a strong hint to TCP stack :
Subsequent sendmsg() can not append more bytes to skbs having
the EOR mark.
Do not try to TSO defer suchs skbs, there is really no hope.
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>
Yafang Shao [Sun, 11 Nov 2018 12:10:10 +0000 (20:10 +0800)]
tcp: minor optimization in tcp ack fast path processing
Bitwise operation is a little faster.
So I replace after() with using the flag FLAG_SND_UNA_ADVANCED as it is
already set before.
In addtion, there's another similar improvement in tcp_cwnd_reduction().
Cc: Joe Perches <joe@perches.com>
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Eric Dumazet [Sun, 11 Nov 2018 00:22:29 +0000 (16:22 -0800)]
act_mirred: clear skb->tstamp on redirect
If sch_fq is used at ingress, skbs that might have been
timestamped by net_timestamp_set() if a packet capture
is requesting timestamps could be delayed by arbitrary
amount of time, since sch_fq time base is MONOTONIC.
Fix this problem by moving code from sch_netem.c to act_mirred.c.
Fixes: fb420d5d91c1 ("tcp/fq: move back to CLOCK_MONOTONIC")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Lunn [Sat, 10 Nov 2018 23:41:10 +0000 (00:41 +0100)]
net: dsa: mv88e6xxx: Fix clearing of stats counters
The mv88e6161 would sometime fail to probe with a timeout waiting for
the switch to complete an operation. This operation is supposed to
clear the statistics counters. However, due to a read/modify/write,
without the needed mask, the operation actually carried out was more
random, with invalid parameters, resulting in the switch not
responding. We need to preserve the histogram mode bits, so apply a
mask to keep them.
Reported-by: Chris Healy <Chris.Healy@zii.aero>
Fixes: 40cff8fca9e3 ("net: dsa: mv88e6xxx: Fix stats histogram mode")
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 11 Nov 2018 18:17:46 +0000 (10:17 -0800)]
Merge branch 'mv88e6xxx-Support-more-SERDES-interfacxes'
Andrew Lunn says:
====================
net: dsa: mv88e6xxx: Support more SERDES interfacxes
Currently the SERDES interfaces for ports 9 and 10 on the mv88e6390x
are supported, allowing upto 10G. However, when unused, these SERDES
interfaces can be used by some of the lower ports for 1000Base-X.
The tricky bit here is ordering. The SERDES have to become free from
ports 9 or 10 before they can be used with lower ports. Normally, this
would happen only when these ports would be configured up, which is
too late. So at probe time, defaulting ports 9 and 10 to 1000BaseX
frees them for use with lower ports. If they are actually needed, they
will be taken back when port 9 and 10 goes up.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Lunn [Sat, 10 Nov 2018 23:32:17 +0000 (00:32 +0100)]
net: dsa: mv88e6xxx: Add support for SERDES on ports 2-8 for 6390X
The 6390X family has 8 SERDES interfaces. When ports 9 and 10 are not
using all their SERDES interfaces, the unused ones can be assigned to
ports 2-8. Add support for interrupts from SERDES interfaces connected
to these lower ports.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Lunn [Sat, 10 Nov 2018 23:32:16 +0000 (00:32 +0100)]
net: dsa: mv88e6xxx: Default ports 9/10 6390X CMODE to 1000BaseX
The 6390X family has 8 SERDES interfaces. This allows ports 9 and 10
to support up to 10Gbps using 4 SERDES interfaces. However, when lower
speeds are used, which need fewer SERDES interfaces, the unused SERDES
interfaces can be used by ports 2-8.
The hardware defaults to ports 9 and 10 having all 4 SERDES interfaces
assigned to them. This only gets changed when the interface is
configured after what the SFP supports has been determined, or the 10G
PHY completes auto-neg.
For hardware designs which limit ports 9 and 10 to one or two SERDES
interfaces, and place SFPs on the lower interfaces, this is too
late. Those ports with SFP should not wait until ports 9/10 are up in
order to get access to the SERDES interface. So change the default
configuration when the driver is initialised. Configure ports 9 and 10
to 1000BaseX, so they use a single SERDES interface, freeing up the
others. They can steal them back if they need them.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Lunn [Sat, 10 Nov 2018 23:32:15 +0000 (00:32 +0100)]
net: dsa: mv88e6xxx: Differentiate between 6390 and 6390X cmodes
The X family variants support additional ports modes, for 10G
operation, which the non-X variants don't have. Add a port_set_cmode()
for non-X variants to enforce this.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Lunn [Sat, 10 Nov 2018 23:32:14 +0000 (00:32 +0100)]
net: dsa: mv88e6xxx: Group cmode ops together
Move .port_set_cmode next to .port_get_cmode.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 11 Nov 2018 18:10:02 +0000 (10:10 -0800)]
Merge branch 'net-phy-convert-advertise-and-supported-to-linkmode'
Andrew Lunn says:
====================
net: phy: convert advertise and supported to linkmode
This is the last part in converting phylib to make use of a linux
bitmap, not a u32, to represent links modes. This will allow support
for PHYs > 1Gbps, which need to use link modes represented by a bit >
32.
A number of MAC and PHY drivers need changes to support this. However
the previous two patchesets reduced the number somewhat, the helpers
which were introduced have been modified instead of the actual
drivers.
The follow on patches then make use of the extra bits, adding support
for more link modes.
Given how invasive this change is, i expect the build is broken for
some architectures i did not test. I will fixup the breakage as fast
as i can.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Lunn [Sat, 10 Nov 2018 22:43:37 +0000 (23:43 +0100)]
net: phy: Add support for resolving 5G and 2.5G autoneg
Now that 2.5G and 5G can be represented in phydev->advertising and
phydev->lp_advertising, add these two links modes as possible
resolutions to auto negotiation.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Lunn [Sat, 10 Nov 2018 22:43:36 +0000 (23:43 +0100)]
net: phy: Add more link modes to the settings table
Now that PHYs and MAC can support more than 32 bit masks, add link
modes which are > 31 to the PHY settings table.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Lunn [Sat, 10 Nov 2018 22:43:35 +0000 (23:43 +0100)]
net: phy: Fixup kerneldoc markup.
Add missing markup for function parameters
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Lunn [Sat, 10 Nov 2018 22:43:34 +0000 (23:43 +0100)]
net: phy: Convert u32 phydev->lp_advertising to linkmode
Convert phy drivers to report the link partner advertised modes using
a linkmode bitmap. This allows them to report the higher speeds which
don't fit in a u32.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Andrew Lunn [Sat, 10 Nov 2018 22:43:33 +0000 (23:43 +0100)]
net: ethernet: Convert phydev advertize and supported from u32 to link mode
There are a few MAC/PHYs combinations which now support > 1Gbps. These
may need to make use of link modes with bits > 31. Thus their
supported PHY features or advertised features cannot be implemented
using the current bitmap in a u32. Convert to using a linkmode bitmap,
which can support all the currently devices link modes, and is future
proof as more modes are added.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Heiner Kallweit [Sat, 10 Nov 2018 22:40:50 +0000 (23:40 +0100)]
net: phy: remove states PHY_STARTING and PHY_PENDING
Both states aren't used. Most likely they result from an idea that
never materialized. So remove them.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jon Maloy [Sat, 10 Nov 2018 22:30:24 +0000 (17:30 -0500)]
tipc: fix link re-establish failure
When a link failure is detected locally, the link is reset, the flag
link->in_session is set to false, and a RESET_MSG with the 'stopping'
bit set is sent to the peer.
The purpose of this bit is to inform the peer that this endpoint just
is going down, and that the peer should handle the reception of this
particular RESET message as a local failure. This forces the peer to
accept another RESET or ACTIVATE message from this endpoint before it
can re-establish the link. This again is necessary to ensure that
link session numbers are properly exchanged before the link comes up
again.
If a failure is detected locally at the same time at the peer endpoint
this will do the same, which is also a correct behavior.
However, when receiving such messages, the endpoints will not
distinguish between 'stopping' RESETs and ordinary ones when it comes
to updating session numbers. Both endpoints will copy the received
session number and set their 'in_session' flags to true at the
reception, while they are still expecting another RESET from the
peer before they can go ahead and re-establish. This is contradictory,
since, after applying the validation check referred to below, the
'in_session' flag will cause rejection of all such messages, and the
link will never come up again.
We now fix this by not only handling received RESET/STOPPING messages
as a local failure, but also by omitting to set a new session number
and the 'in_session' flag in such cases.
Fixes: 7ea817f4e832 ("tipc: check session number before accepting link protocol messages")
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
yupeng [Sat, 10 Nov 2018 21:38:12 +0000 (13:38 -0800)]
documentation of some IP/ICMP snmp counters
The snmp_counter.rst explains the meanings of snmp counters. It also
provides a set of experiments (only 1 for this initial patch),
combines the experiments' resutls and the snmp counters'
meanings. This is an initial path, only explains a part of IP/ICMP
counters and provide a simple ping test.
Signed-off-by: yupeng <yupeng0921@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
LUU Duc Canh [Sat, 10 Nov 2018 19:23:50 +0000 (14:23 -0500)]
tipc: improve broadcast retransmission algorithm
Currently, the broadcast retransmission algorithm is using the
'prev_retr' field in struct tipc_link to time stamp the latest broadcast
retransmission occasion. This helps to restrict retransmission of
individual broadcast packets to max once per 10 milliseconds, even
though all other criteria for retransmission are met.
We now move this time stamp to the control block of each individual
packet, and remove other limiting criteria. This simplifies the
retransmission algorithm, and eliminates any risk of logical errors
in selecting which packets can be retransmitted.
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: LUU Duc Canh <canh.d.luu@dektech.com.au>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 11 Nov 2018 17:54:53 +0000 (09:54 -0800)]
Merge branch 'net-sched-indirect-tc-block-cb-registration'
Jakub Kicinski says:
====================
net: sched: indirect tc block cb registration
John says:
This patchset introduces an alternative to egdev offload by allowing a
driver to register for block updates when an external device (e.g. tunnel
netdev) is bound to a TC block. Drivers can track new netdevs or register
to existing ones to receive information on such events. Based on this,
they may register for block offload rules using already existing
functions.
The patchset also implements this new indirect block registration in the
NFP driver to allow the offloading of tunnel rules. The use of egdev
offload (which is currently only used for tunnel offload) is subsequently
removed.
RFC v2 -> PATCH
- removed embedded tracking function from indir block register (now up to
driver to clean up after itself)
- refactored NFP code due to recent submissions
- removed priv list clean function in NFP (list should be cleared by
indirect block unregisters)
RFC v1->v2:
- free allocated owner struct in block_owner_clean function
- add geneve type helper function
- move test stub in NFP (v1 patch 2) to full tunnel offload
implementation via indirect blocks (v2 patches 3-8)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
John Hurley [Sat, 10 Nov 2018 05:21:31 +0000 (21:21 -0800)]
nfp: flower: remove unnecessary code in flow lookup
Recent changes to NFP mean that stats updates from fw to driver no longer
require a flow lookup and (because egdev offload has been removed) the
ingress netdev for a lookup is now always known.
Remove obsolete code in a flow lookup that matches on host context and
that allows for a netdev to be NULL.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
John Hurley [Sat, 10 Nov 2018 05:21:30 +0000 (21:21 -0800)]
nfp: flower: remove TC egdev offloads
Previously, only tunnel decap rules required egdev registration for
offload in NFP. These are now supported via indirect TC block callbacks.
Remove the egdev code from NFP.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
John Hurley [Sat, 10 Nov 2018 05:21:29 +0000 (21:21 -0800)]
nfp: flower: offload tunnel decap rules via indirect TC blocks
Previously, TC block tunnel decap rules were only offloaded when a
callback was triggered through registration of the rules egress device.
This meant that the driver had no access to the ingress netdev and so
could not verify it was the same tunnel type that the rule implied.
Register tunnel devices for indirect TC block offloads in NFP, giving
access to new rules based on the ingress device rather than egress. Use
this to verify the netdev type of VXLAN and Geneve based rules and offload
the rules to HW if applicable.
Tunnel registration is done via a netdev notifier. On notifier
registration, this is triggered for already existing netdevs. This means
that NFP can register for offloads from devices that exist before it is
loaded (filter rules will be replayed from the TC core). Similarly, on
notifier unregister, a call is triggered for each currently active netdev.
This allows the driver to unregister any indirect block callbacks that may
still be active.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
John Hurley [Sat, 10 Nov 2018 05:21:28 +0000 (21:21 -0800)]
nfp: flower: increase scope of netdev checking functions
Both the actions and tunnel_conf files contain local functions that check
the type of an input netdev. In preparation for re-use with tunnel offload
via indirect blocks, move these to static inline functions in a header
file.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
John Hurley [Sat, 10 Nov 2018 05:21:27 +0000 (21:21 -0800)]
nfp: flower: allow non repr netdev offload
Previously the offload functions in NFP assumed that the ingress (or
egress) netdev passed to them was an nfp repr.
Modify the driver to permit the passing of non repr netdevs as the ingress
device for an offload rule candidate. This may include devices such as
tunnels. The driver should then base its offload decision on a combination
of ingress device and egress port for a rule.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
John Hurley [Sat, 10 Nov 2018 05:21:26 +0000 (21:21 -0800)]
net: sched: register callbacks for indirect tc block binds
Currently drivers can register to receive TC block bind/unbind callbacks
by implementing the setup_tc ndo in any of their given netdevs. However,
drivers may also be interested in binds to higher level devices (e.g.
tunnel drivers) to potentially offload filters applied to them.
Introduce indirect block devs which allows drivers to register callbacks
for block binds on other devices. The callback is triggered when the
device is bound to a block, allowing the driver to register for rules
applied to that block using already available functions.
Freeing an indirect block callback will trigger an unbind event (if
necessary) to direct the driver to remove any offloaded rules and unreg
any block rule callbacks. It is the responsibility of the implementing
driver to clean any registered indirect block callbacks before exiting,
if the block it still active at such a time.
Allow registering an indirect block dev callback for a device that is
already bound to a block. In this case (if it is an ingress block),
register and also trigger the callback meaning that any already installed
rules can be replayed to the calling driver.
Signed-off-by: John Hurley <john.hurley@netronome.com>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 11 Nov 2018 17:44:14 +0000 (09:44 -0800)]
Merge branch 'PHYID-matching-macros'
Heiner Kallweit says:
====================
net: phy: add macros for PHYID matching in PHY driver config
Add macros for PHYID matching to be used in PHY driver configs.
By using these macros some boilerplate code can be avoided.
Use them initially in the Realtek PHY drivers.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Heiner Kallweit [Fri, 9 Nov 2018 23:40:37 +0000 (00:40 +0100)]
net: phy: realtek: use new PHYID matching macros
Use new macros for PHYID matching to avoid boilerplate code.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Heiner Kallweit [Fri, 9 Nov 2018 23:39:14 +0000 (00:39 +0100)]
net: phy: add macros for PHYID matching
Add macros for PHYID matching to be used in PHY driver configs.
By using these macros some boilerplate code can be avoided.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 11 Nov 2018 17:41:32 +0000 (09:41 -0800)]
Merge branch 'phylib-simplifications'
Heiner Kallweit says:
====================
net: phy: further phylib simplifications after recent changes to the state machine
After the recent changes to the state machine phylib can be further
simplified (w/o having to make any assumptions).
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Heiner Kallweit [Fri, 9 Nov 2018 17:58:01 +0000 (18:58 +0100)]
net: phy: improve and inline phy_change
Now that phy_mac_interrupt() doesn't call phy_change() any longer it's
called from phy_interrupt() only. Therefore phy_interrupt_is_valid()
returns true always and the check can be removed.
In case of PHY_HALTED phy_interrupt() bails out immediately,
therefore the second check for PHY_HALTED including the call to
phy_disable_interrupts() can be removed.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Heiner Kallweit [Fri, 9 Nov 2018 17:56:52 +0000 (18:56 +0100)]
net: phy: simplify phy_mac_interrupt and related functions
When using phy_mac_interrupt() the irq number is set to
PHY_IGNORE_INTERRUPT, therefore phy_interrupt_is_valid() returns false.
As a result phy_change() effectively just calls phy_trigger_machine()
when called from phy_mac_interrupt() via phy_change_work(). So we can
call phy_trigger_machine() from phy_mac_interrupt() directly and
remove some now unneeded code.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Heiner Kallweit [Fri, 9 Nov 2018 17:55:50 +0000 (18:55 +0100)]
net: phy: don't set state PHY_CHANGELINK in phy_change
State PHY_CHANGELINK isn't needed here, we can call the state machine
directly. We just have to remove the check for phy_polling_mode() to
make this work also in interrupt mode. Removing this check doesn't
cause any overhead because when not polling the state machine is
called only if required by some event.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 11 Nov 2018 17:37:04 +0000 (09:37 -0800)]
Merge branch 'remove-PHY_HAS_INTERRUPT'
Heiner Kallweit says:
====================
net: phy: replace PHY_HAS_INTERRUPT with a check for config_intr and ack_interrupt
Flag PHY_HAS_INTERRUPT is used only here for this small check. I think
using interrupts isn't possible if a driver defines neither
config_intr nor ack_interrupts callback. So we can replace checking
flag PHY_HAS_INTERRUPT with checking for these callbacks.
This allows to remove this flag from all driver configs.
v2:
- add helper for check in patch 1
- remove PHY_HAS_INTERRUPT from all drivers, not only Realtek
- remove flag PHY_HAS_INTERRUPT completely
v3:
- rebase patch 2
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Heiner Kallweit [Fri, 9 Nov 2018 17:17:22 +0000 (18:17 +0100)]
net: phy: remove flag PHY_HAS_INTERRUPT from driver configs
Now that flag PHY_HAS_INTERRUPT has been replaced with a check for
callbacks config_intr and ack_interrupt, we can remove setting this
flag from all driver configs.
Last but not least remove flag PHY_HAS_INTERRUPT completely.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Heiner Kallweit [Fri, 9 Nov 2018 17:16:28 +0000 (18:16 +0100)]
net: phy: replace PHY_HAS_INTERRUPT with a check for config_intr and ack_interrupt
Flag PHY_HAS_INTERRUPT is used only here for this small check. I think
using interrupts isn't possible if a driver defines neither
config_intr nor ack_interrupts callback. So we can replace checking
flag PHY_HAS_INTERRUPT with checking for these callbacks.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Rob Herring [Wed, 7 Nov 2018 14:36:46 +0000 (08:36 -0600)]
builddeb: Fix inclusion of dtbs in debian package
Commit
37c8a5fafa3b ("kbuild: consolidate Devicetree dtb build rules")
moved the location of 'dtbs_install' target which caused dtbs to not be
installed when building debian package with 'bindeb-pkg' target. Update
the builddeb script to use the same logic that determines if there's a
'dtbs_install' target which is presence of the arch dts directory. Also,
use CONFIG_OF_EARLY_FLATTREE instead of CONFIG_OF as that's a better
indication of whether we are building dtbs.
This commit will also have the side effect of installing dtbs on any
arch that has dts files. Previously, it was dependent on whether the
arch defined 'dtbs_install'.
Fixes: 37c8a5fafa3b ("kbuild: consolidate Devicetree dtb build rules")
Reported-by: Nuno Gonçalves <nunojpg@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Guenter Roeck [Tue, 6 Nov 2018 18:10:38 +0000 (10:10 -0800)]
Revert "scripts/setlocalversion: git: Make -dirty check more robust"
This reverts commit
6147b1cf19651c7de297e69108b141fb30aa2349.
The reverted patch results in attempted write access to the source
repository, even if that repository is mounted read-only.
Output from "strace git status -uno --porcelain":
getcwd("/tmp/linux-test", 129) = 16
open("/tmp/linux-test/.git/index.lock", O_RDWR|O_CREAT|O_EXCL|O_CLOEXEC, 0666) =
-1 EROFS (Read-only file system)
While git appears to be able to handle this situation, a monitored
build environment (such as the one used for Chrome OS kernel builds)
may detect it and bail out with an access violation error. On top of
that, the attempted write access suggests that git _will_ write to the
file even if a build output directory is specified. Users may have the
reasonable expectation that the source repository remains untouched in
that situation.
Fixes: 6147b1cf19651 ("scripts/setlocalversion: git: Make -dirty check more robust"
Cc: Genki Sky <sky@genki.is>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Masahiro Yamada [Tue, 6 Nov 2018 04:18:05 +0000 (13:18 +0900)]
kbuild: deb-pkg: fix too low build version number
Since commit
b41d920acff8 ("kbuild: deb-pkg: split generating packaging
and build"), the build version of the kernel contained in a deb package
is too low by 1.
Prior to the bad commit, the kernel was built first, then the number
in .version file was read out, and written into the debian control file.
Now, the debian control file is created before the kernel is actually
compiled, which is causing the version number mismatch.
Let the mkdebian script pass KBUILD_BUILD_VERSION=${revision} to require
the build system to use the specified version number.
Fixes: b41d920acff8 ("kbuild: deb-pkg: split generating packaging and build")
Reported-by: Doug Smythies <dsmythies@telus.net>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Doug Smythies <dsmythies@telus.net>
Masahiro Yamada [Mon, 5 Nov 2018 08:19:36 +0000 (17:19 +0900)]
kconfig: merge_config: avoid false positive matches from comment lines
The current SED_CONFIG_EXP could match to comment lines in config
fragment files, especially when CONFIG_PREFIX_ is empty. For example,
Buildroot uses empty prefixing; starting symbols with BR2_ is just
convention.
Make the sed expression more robust against false positives from
comment lines. The new sed expression matches to only valid patterns.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Petr Vorel <petr.vorel@gmail.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
David S. Miller [Sun, 11 Nov 2018 03:32:23 +0000 (19:32 -0800)]
sctp: Fix SKB list traversal in sctp_intl_store_ordered().
Same change as made to sctp_intl_store_reasm().
To be fully correct, an iterator has an undefined value when something
like skb_queue_walk() naturally terminates.
This will actually matter when SKB queues are converted over to
list_head.
Formalize what this code ends up doing with the current
implementation.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 11 Nov 2018 03:28:27 +0000 (19:28 -0800)]
sctp: Fix SKB list traversal in sctp_intl_store_reasm().
To be fully correct, an iterator has an undefined value when something
like skb_queue_walk() naturally terminates.
This will actually matter when SKB queues are converted over to
list_head.
Formalize what this code ends up doing with the current
implementation.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Thu, 23 Aug 2018 00:01:51 +0000 (17:01 -0700)]
iucv: Remove SKB list assumptions.
Eliminate the assumption that SKBs and SKB list heads can
be cast to eachother in SKB list handling code.
This change also appears to fix a bug since the list->next pointer is
sampled outside of holding the SKB queue lock.
Signed-off-by: David S. Miller <davem@davemloft.net>
David S. Miller [Sun, 12 Aug 2018 04:14:34 +0000 (21:14 -0700)]
brcmfmac: Use standard SKB list accessors in brcmf_sdiod_sglist_rw.
Instead of direct SKB list pointer accesses.
The loops in this function had to be rewritten to accommodate this
more easily.
The first loop iterates now over the target list in the outer loop,
and triggers an mmc data operation when the per-operation limits are
hit.
Then after the loops, if we have any residue, we trigger the last
and final operation.
For the page aligned workaround, where we have to copy the read data
back into the original list of SKBs, we use a two-tiered loop. The
outer loop stays the same and iterates over pktlist, and then we have
an inner loop which uses skb_peek_next(). The break logic has been
simplified because we know that the aggregate length of the SKBs in
the source and destination lists are the same.
This change also ends up fixing a bug, having to do with the
maintainance of the seg_sz variable and how it drove the outermost
loop. It begins as:
seg_sz = target_list->qlen;
ie. the number of packets in the target_list queue. The loop
structure was then:
while (seq_sz) {
...
while (not at end of target_list) {
...
sg_cnt++
...
}
...
seg_sz -= sg_cnt;
The assumption built into that last statement is that sg_cnt counts
how many packets from target_list have been fully processed by the
inner loop. But this not true.
If we hit one of the limits, such as the max segment size or the max
request size, we will break and copy a partial packet then contine
back up to the top of the outermost loop.
With the new loops we don't have this problem as we don't guard the
loop exit with a packet count, but instead use the progression of the
pkt_next SKB through the list to the end. The general structure is:
sg_cnt = 0;
skb_queue_walk(target_list, pkt_next) {
pkt_offset = 0;
...
sg_cnt++;
...
while (pkt_offset < pkt_next->len) {
pkt_offset += sg_data_size;
if (queued up max per request)
mmc_submit_one();
}
}
if (sg_cnt)
mmc_submit_one();
The variables that maintain where we are in the MMC command state such
as req_sz, sg_cnt, and sgl are reset when we emit one of these full
sized requests.
Signed-off-by: David S. Miller <davem@davemloft.net>
Michał Mirosław [Sat, 10 Nov 2018 18:55:34 +0000 (19:55 +0100)]
OVS: remove VLAN_TAG_PRESENT - fixup
It turns out I missed one VLAN_TAG_PRESENT in OVS code while rebasing.
This fixes it.
Fixes: 9df46aefafa6 ("OVS: remove use of VLAN_TAG_PRESENT")
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>