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Minor overlapping changes in xfrm_device.c, between the double
ESP trailing bug fix setting the XFRM_INIT flag and the changes
in net-next preparing for bonding encryption support.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull networking fixes from David Miller:
1) Don't insert ESP trailer twice in IPSEC code, from Huy Nguyen.
2) The default crypto algorithm selection in Kconfig for IPSEC is out
of touch with modern reality, fix this up. From Eric Biggers.
3) bpftool is missing an entry for BPF_MAP_TYPE_RINGBUF, from Andrii
Nakryiko.
4) Missing init of ->frame_sz in xdp_convert_zc_to_xdp_frame(), from
Hangbin Liu.
5) Adjust packet alignment handling in ax88179_178a driver to match
what the hardware actually does. From Jeremy Kerr.
6) register_netdevice can leak in the case one of the notifiers fail,
from Yang Yingliang.
7) Use after free in ip_tunnel_lookup(), from Taehee Yoo.
8) VLAN checks in sja1105 DSA driver need adjustments, from Vladimir
Oltean.
9) tg3 driver can sleep forever when we get enough EEH errors, fix from
David Christensen.
10) Missing {READ,WRITE}_ONCE() annotations in various Intel ethernet
drivers, from Ciara Loftus.
11) Fix scanning loop break condition in of_mdiobus_register(), from
Florian Fainelli.
12) MTU limit is incorrect in ibmveth driver, from Thomas Falcon.
13) Endianness fix in mlxsw, from Ido Schimmel.
14) Use after free in smsc95xx usbnet driver, from Tuomas Tynkkynen.
15) Missing bridge mrp configuration validation, from Horatiu Vultur.
16) Fix circular netns references in wireguard, from Jason A. Donenfeld.
17) PTP initialization on recovery is not done properly in qed driver,
from Alexander Lobakin.
18) Endian conversion of L4 ports in filters of cxgb4 driver is wrong,
from Rahul Lakkireddy.
19) Don't clear bound device TX queue of socket prematurely otherwise we
get problems with ktls hw offloading, from Tariq Toukan.
20) ipset can do atomics on unaligned memory, fix from Russell King.
21) Align ethernet addresses properly in bridging code, from Thomas
Martitz.
22) Don't advertise ipv4 addresses on SCTP sockets having ipv6only set,
from Marcelo Ricardo Leitner.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (149 commits)
rds: transport module should be auto loaded when transport is set
sch_cake: fix a few style nits
sch_cake: don't call diffserv parsing code when it is not needed
sch_cake: don't try to reallocate or unshare skb unconditionally
ethtool: fix error handling in linkstate_prepare_data()
wil6210: account for napi_gro_receive never returning GRO_DROP
hns: do not cast return value of napi_gro_receive to null
socionext: account for napi_gro_receive never returning GRO_DROP
wireguard: receive: account for napi_gro_receive never returning GRO_DROP
vxlan: fix last fdb index during dump of fdb with nhid
sctp: Don't advertise IPv4 addresses if ipv6only is set on the socket
tc-testing: avoid action cookies with odd length.
bpf: tcp: bpf_cubic: fix spurious HYSTART_DELAY exit upon drop in min RTT
tcp_cubic: fix spurious HYSTART_DELAY exit upon drop in min RTT
net: dsa: sja1105: fix tc-gate schedule with single element
net: dsa: sja1105: recalculate gating subschedule after deleting tc-gate rules
net: dsa: sja1105: unconditionally free old gating config
net: dsa: sja1105: move sja1105_compose_gating_subschedule at the top
net: macb: free resources on failure path of at91ether_open()
net: macb: call pm_runtime_put_sync on failure path
...
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Change tin mapping on diffserv3, 4 & 8 for LE PHB support, in essence
making LE a member of the Bulk tin.
Bulk has the least priority and minimum of 1/16th total bandwidth in the
face of higher priority traffic.
NB: Diffserv 3 & 4 swap tin 0 & 1 priorities from the default order as
found in diffserv8, in case anyone is wondering why it looks a bit odd.
Signed-off-by: Kevin Darbyshire-Bryant <ldir@darbyshire-bryant.me.uk>
[ reword commit message slightly ]
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This enhancement auto loads transport module when the transport
is set via SO_RDS_TRANSPORT socket option.
Reviewed-by: Ka-Cheong Poon <ka-cheong.poon@oracle.com>
Reviewed-by: Håkon Bugge <haakon.bugge@oracle.com>
Signed-off-by: Rao Shoaib <rao.shoaib@oracle.com>
Signed-off-by: Somasundaram Krishnasamy <somasundaram.krishnasamy@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Toke Høiland-Jørgensen says:
====================
sched: A couple of fixes for sch_cake
This series contains a couple of fixes for diffserv handling in sch_cake that
provide a nice speedup (with a somewhat pedantic nit fix tacked on to the end).
Not quite sure about whether this should go to stable; it does provide a nice
speedup, but it's not strictly a fix in the "correctness" sense. I lean towards
including this in stable as well, since our most important consumer of that
(OpenWrt) is likely to backport the series anyway.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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I spotted a few nits when comparing the in-tree version of sch_cake with
the out-of-tree one: A redundant error variable declaration shadowing an
outer declaration, and an indentation alignment issue. Fix both of these.
Fixes: 046f6fd5daef ("sched: Add Common Applications Kept Enhanced (cake) qdisc")
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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As a further optimisation of the diffserv parsing codepath, we can skip it
entirely if CAKE is configured to neither use diffserv-based
classification, nor to zero out the diffserv bits.
Fixes: c87b4ecdbe8d ("sch_cake: Make sure we can write the IP header before changing DSCP bits")
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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cake_handle_diffserv() tries to linearize mac and network header parts of
skb and to make it writable unconditionally. In some cases it leads to full
skb reallocation, which reduces throughput and increases CPU load. Some
measurements of IPv4 forward + NAPT on MIPS router with 580 MHz single-core
CPU was conducted. It appears that on kernel 4.9 skb_try_make_writable()
reallocates skb, if skb was allocated in ethernet driver via so-called
'build skb' method from page cache (it was discovered by strange increase
of kmalloc-2048 slab at first).
Obtain DSCP value via read-only skb_header_pointer() call, and leave
linearization only for DSCP bleaching or ECN CE setting. And, as an
additional optimisation, skip diffserv parsing entirely if it is not needed
by the current configuration.
Fixes: c87b4ecdbe8d ("sch_cake: Make sure we can write the IP header before changing DSCP bits")
Signed-off-by: Ilya Ponetayev <i.ponetaev@ndmsystems.com>
[ fix a few style issues, reflow commit message ]
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Antoine Tenart says:
====================
net: phy: mscc: multiple improvements
This series contains various improvements to the MSCC PHY driver, fixing
sparse and smatch warnings, using functions provided by the PHY core,
and improving the driver consistency and maintenance.
I don't think any of those improvements and fixes is worth backporting
to stable trees.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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All PHY read and write return values are checked for errors in
vsc8514_config_init and vsc8584_config_init, except for one. Fix this.
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In the middle of vsc8584_config_init and vsc8514_config_init, the page
is set to 'standard'. This is the default value, and the page isn't set
to another value before. Those pages configuration can be safely
removed.
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In the vsc8584_config_init and vsc8514_config_init, the base page is set
to 'GPIO', configuration is done, and the page is never explicitly
restored to the standard page. No bug was triggered as it turns out
helpers called in those config_init functions do modify the base page,
and set it back to standard. But that is dangerous and any modification
to those functions would introduce bugs. This patch fixes this, to
improve maintenance, by restoring the base page to 'standard' once
'GPIO' accesses are completed.
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch improves the MSCC driver by using the provided
phy_lock_mdio_bus and phy_unlock_mdio_bus helpers instead of locking and
unlocking the MDIO bus lock directly. The patch is only cosmetic but
should improve maintenance and consistency.
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fixes a typo in a comment, s/Ths/This/. The patch is cosmetic
only.
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The following error was reported by smatch:
vsc85xx_ts_read_csr() error: uninitialized symbol 'blk_hw'.
In practice this is very unlikely, as all the block identifiers given to
this functions are handled and described in an enum. The smatch error is
fixed by doing what is already done in vsc85xx_ts_write_csr: using the
"PROCESSOR" block by default.
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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On vsc8584_ptp_init failure we jump to the 'err' label, which unlocks
the MDIO bus lock. But vsc8584_ptp_init isn't called with the MDIO bus
lock taken, which could result in a double unlock. Fix this.
Fixes: ab2bf9339357 ("net: phy: mscc: 1588 block initialization")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fixes the following sparse warnings when building MACsec
support in the MSCC PHY driver.
mscc_macsec.c:393:42: warning: cast from restricted sci_t
mscc_macsec.c:395:42: warning: restricted sci_t degrades to integer
mscc_macsec.c:402:42: warning: restricted __be16 degrades to integer
mscc_macsec.c:608:34: warning: cast from restricted sci_t
mscc_macsec.c:610:34: warning: restricted sci_t degrades to integer
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When getting SQI or maximum SQI value fails in linkstate_prepare_data(), we
must not return without calling ethnl_ops_complete(dev) as that could
result in imbalance between ethtool_ops ->begin() and ->complete() calls.
Fixes: 806602191592 ("ethtool: provide UAPI for PHY Signal Quality Index (SQI)")
Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing fixes from Steven Rostedt:
"Four small fixes:
- Fix a ringbuffer bug for nested events having time go backwards
- Fix a config dependency for boot time tracing to depend on
synthetic events instead of histograms.
- Fix trigger format parsing to handle multiple spaces
- Fix bootconfig to handle failures in multiple events"
* tag 'trace-v5.8-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing/boottime: Fix kprobe multiple events
tracing: Fix event trigger to accept redundant spaces
tracing/boot: Fix config dependency for synthedic event
ring-buffer: Zero out time extend if it is nested and not absolute
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Jason A. Donenfeld says:
====================
napi_gro_receive caller return value cleanups
In 6570bc79c0df ("net: core: use listified Rx for GRO_NORMAL in
napi_gro_receive()"), the GRO_NORMAL case stopped calling
netif_receive_skb_internal, checking its return value, and returning
GRO_DROP in case it failed. Instead, it calls into
netif_receive_skb_list_internal (after a bit of indirection), which
doesn't return any error. Therefore, napi_gro_receive will never return
GRO_DROP, making handling GRO_DROP dead code.
I emailed the author of 6570bc79c0df on netdev [1] to see if this change
was intentional, but the dlink.ru email address has been disconnected,
and looking a bit further myself, it seems somewhat infeasible to start
propagating return values backwards from the internal machinations of
netif_receive_skb_list_internal.
Taking a look at all the callers of napi_gro_receive, it appears that
three are checking the return value for the purpose of comparing it to
the now never-happening GRO_DROP, and one just casts it to (void), a
likely historical leftover. Every other of the 120 callers does not
bother checking the return value.
And it seems like these remaining 116 callers are doing the right thing:
after calling napi_gro_receive, the packet is now in the hands of the
upper layers of the newtworking, and the device driver itself has no
business now making decisions based on what the upper layers choose to
do. Incrementing stats counters on GRO_DROP seems like a mistake, made
by these three drivers, but not by the remaining 117.
It would seem, therefore, that after rectifying these four callers of
napi_gro_receive, that I should go ahead and just remove returning the
value from napi_gro_receive all together. However, napi_gro_receive has
a function event tracer, and being able to introspect into the
networking stack to see how often napi_gro_receive is returning whatever
interesting GRO status (aside from _DROP) remains an interesting
data point worth keeping for debugging.
So, this series simply gets rid of the return value checking for the
four useless places where that check never evaluates to anything
meaningful.
[1] https://lore.kernel.org/netdev/20200624210606.GA1362687@zx2c4.com/
====================
Acked-by: Edward Cree <ecree@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The napi_gro_receive function no longer returns GRO_DROP ever, making
handling GRO_DROP dead code. This commit removes that dead code.
Further, it's not even clear that device drivers have any business in
taking action after passing off received packets; that's arguably out of
their hands. In this case, too, the non-gro path didn't bother checking
the return value. Plus, this had some clunky debugging functions that
duplicated code from elsewhere and was generally pretty messy. So, this
commit cleans that all up too.
Fixes: 6570bc79c0df ("net: core: use listified Rx for GRO_NORMAL in napi_gro_receive()")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Basically no drivers care about the return value here, and there's no
__must_check that would make casting to void sensible, so remove it.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The napi_gro_receive function no longer returns GRO_DROP ever, making
handling GRO_DROP dead code. This commit removes that dead code.
Further, it's not even clear that device drivers have any business in
taking action after passing off received packets; that's arguably out of
their hands.
Fixes: 6570bc79c0df ("net: core: use listified Rx for GRO_NORMAL in napi_gro_receive()")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The napi_gro_receive function no longer returns GRO_DROP ever, making
handling GRO_DROP dead code. This commit removes that dead code.
Further, it's not even clear that device drivers have any business in
taking action after passing off received packets; that's arguably out of
their hands.
Fixes: e7096c131e51 ("net: WireGuard secure network tunnel")
Fixes: 6570bc79c0df ("net: core: use listified Rx for GRO_NORMAL in napi_gro_receive()")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch fixes last saved fdb index in fdb dump handler when
handling fdb's with nhid.
Fixes: 1274e1cc4226 ("vxlan: ecmp support for mac fdb entries")
Signed-off-by: Roopa Prabhu <roopa@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If a socket is set ipv6only, it will still send IPv4 addresses in the
INIT and INIT_ACK packets. This potentially misleads the peer into using
them, which then would cause association termination.
The fix is to not add IPv4 addresses to ipv6only sockets.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Reported-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Tested-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Update odd length cookie hexstrings in csum.json, tunnel_key.json and
bpf.json to be even length to comply with check enforced in commit
0149dabf2a1b ("tc: m_actions: check cookie hexstring len") in iproute2.
Signed-off-by: Briana Oursler <briana.oursler@gmail.com>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Reviewed-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Neal Cardwell says:
====================
tcp_cubic: fix spurious HYSTART_DELAY on RTT decrease
This series fixes a long-standing bug in the TCP CUBIC
HYSTART_DELAY mechanim recently reported by Mirja Kuehlewind. The
code can cause a spurious exit of slow start in some particular
cases: upon an RTT decrease that happens on the 9th or later ACK
in a round trip. This series fixes the original Hystart code and
also the recent BPF implementation.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Apply the fix from:
"tcp_cubic: fix spurious HYSTART_DELAY exit upon drop in min RTT"
to the BPF implementation of TCP CUBIC congestion control.
Repeating the commit description here for completeness:
Mirja Kuehlewind reported a bug in Linux TCP CUBIC Hystart, where
Hystart HYSTART_DELAY mechanism can exit Slow Start spuriously on an
ACK when the minimum rtt of a connection goes down. From inspection it
is clear from the existing code that this could happen in an example
like the following:
o The first 8 RTT samples in a round trip are 150ms, resulting in a
curr_rtt of 150ms and a delay_min of 150ms.
o The 9th RTT sample is 100ms. The curr_rtt does not change after the
first 8 samples, so curr_rtt remains 150ms. But delay_min can be
lowered at any time, so delay_min falls to 100ms. The code executes
the HYSTART_DELAY comparison between curr_rtt of 150ms and delay_min
of 100ms, and the curr_rtt is declared far enough above delay_min to
force a (spurious) exit of Slow start.
The fix here is simple: allow every RTT sample in a round trip to
lower the curr_rtt.
Fixes: 6de4a9c430b5 ("bpf: tcp: Add bpf_cubic example")
Reported-by: Mirja Kuehlewind <mirja.kuehlewind@ericsson.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Mirja Kuehlewind reported a bug in Linux TCP CUBIC Hystart, where
Hystart HYSTART_DELAY mechanism can exit Slow Start spuriously on an
ACK when the minimum rtt of a connection goes down. From inspection it
is clear from the existing code that this could happen in an example
like the following:
o The first 8 RTT samples in a round trip are 150ms, resulting in a
curr_rtt of 150ms and a delay_min of 150ms.
o The 9th RTT sample is 100ms. The curr_rtt does not change after the
first 8 samples, so curr_rtt remains 150ms. But delay_min can be
lowered at any time, so delay_min falls to 100ms. The code executes
the HYSTART_DELAY comparison between curr_rtt of 150ms and delay_min
of 100ms, and the curr_rtt is declared far enough above delay_min to
force a (spurious) exit of Slow start.
The fix here is simple: allow every RTT sample in a round trip to
lower the curr_rtt.
Fixes: ae27e98a5152 ("[TCP] CUBIC v2.3")
Reported-by: Mirja Kuehlewind <mirja.kuehlewind@ericsson.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Vladimir Oltean says:
====================
Fixes for SJA1105 DSA tc-gate action
This small series fixes 2 bugs in the tc-gate implementation:
1. The TAS state machine keeps getting rescheduled even after removing
tc-gate actions on all ports.
2. tc-gate actions with only one gate control list entry are installed
to hardware with an incorrect interval of zero, which makes the
switch erroneously drop those packets (since the configuration is
invalid).
To keep the code palatable, a forward-declaration was avoided by moving
some code around in patch 1/4. I hope that isn't too much of an issue.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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The sja1105_gating_cfg_time_to_interval function does this, as per the
comments:
/* The gate entries contain absolute times in their e->interval field. Convert
* that to proper intervals (i.e. "0, 5, 10, 15" to "5, 5, 5, 5").
*/
To perform that task, it iterates over gating_cfg->entries, at each step
updating the interval of the _previous_ entry. So one interval remains
to be updated at the end of the loop: the last one (since it isn't
"prev" for anyone else).
But there was an erroneous check, that the last element's interval
should not be updated if it's also the only element. I'm not quite sure
why that check was there, but it's clearly incorrect, as a tc-gate
schedule with a single element would get an e->interval of zero,
regardless of the duration requested by the user. The switch wouldn't
even consider this configuration as valid: it will just drop all traffic
that matches the rule.
Fixes: 834f8933d5dd ("net: dsa: sja1105: implement tc-gate using time-triggered virtual links")
Reported-by: Xiaoliang Yang <xiaoliang.yang_1@nxp.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently, tas_data->enabled would remain true even after deleting all
tc-gate rules from the switch ports, which would cause the
sja1105_tas_state_machine to get unnecessarily scheduled.
Also, if there were any errors which would prevent the hardware from
enabling the gating schedule, the sja1105_tas_state_machine would
continuously detect and print that, spamming the kernel log, even if the
rules were subsequently deleted.
The rules themselves are _not_ active, because sja1105_init_scheduling
does enough of a job to not install the gating schedule in the static
config. But the virtual link rules themselves are still present.
So call the functions that remove the tc-gate configuration from
priv->tas_data.gating_cfg, so that tas_data->enabled can be set to
false, and sja1105_tas_state_machine will stop from being scheduled.
Fixes: 834f8933d5dd ("net: dsa: sja1105: implement tc-gate using time-triggered virtual links")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Currently sja1105_compose_gating_subschedule is not prepared to be
called for the case where we want to recompute the global tc-gate
configuration after we've deleted those actions on a port.
After deleting the tc-gate actions on the last port, max_cycle_time
would become zero, and that would incorrectly prevent
sja1105_free_gating_config from getting called.
So move the freeing function above the check for the need to apply a new
configuration.
Fixes: 834f8933d5dd ("net: dsa: sja1105: implement tc-gate using time-triggered virtual links")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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It turns out that sja1105_compose_gating_subschedule must also be called
from sja1105_vl_delete, to recalculate the overall tc-gate
configuration. Currently this is not possible without introducing a
forward declaration. So move the function at the top of the file, along
with its dependencies.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Dan Murphy says:
====================
RGMII Internal delay common property
The RGMII internal delay is a common setting found in most RGMII capable PHY
devices. It was found that many vendor specific device tree properties exist
to do the same function. This creates a common property to be used for PHY's
that have internal delays for the Rx and Tx paths.
If the internal delay is tunable then the caller needs to pass the internal
delay array and the return will be the index in the array that was found in
the firmware node.
If the internal delay is fixed then the caller only needs to indicate which
delay to return. There is no need for a fixed delay to add device properties
since the value is not configurable. Per the ethernet-controller.yaml the
interface type indicates that the PHY should provide the delay.
This series contains examples of both a configurable delay and a fixed delay.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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The DP83822 can be configured to use the RGMII interface. There are
independent fixed 3.5ns clock shift (aka internal delay) for the TX and RX
paths. This allow either one to be set if the MII interface is RGMII and
the value is set in the firmware node.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add RGMII internal delay configuration for Rx and Tx.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add the internal delay values into the header and update the binding
with the internal delay properties.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add a helper function that will return the index in the array for the
passed in internal delay value. The helper requires the array, size and
delay value.
The helper will then return the index for the exact match or return the
index for the index to the closest smaller value.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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tx-internal-delays and rx-internal-delays are a common setting for RGMII
capable devices.
These properties are used when the phy-mode or phy-controller is set to
rgmii-id, rgmii-rxid or rgmii-txid. These modes indicate to the
controller that the PHY will add the internal delay for the connection.
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Ioana Ciornei says:
====================
dpaa2-eth: small updates
This patch set adds some updates to the dpaa2-eth driver: trimming of
the frame queue debugfs counters, cleanup of the remaining sparse
warnings and some other small fixes such as a recursive header include.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Two of the function parameters (qtype and index) were misspelled in the
associated descriptions of dpni_[set/get]_taildrop which led to sparse
warnings. Fix this by using the exact same names as present in the
function definition.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The dpaa2-eth.h header file includes dpaa2-eth-trace.h which includes
back dpaa2-eth leading to a recursion in the include path. Fix this by
removing the include of dpaa2-eth.h in the trace header.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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We should keep retrying to acquire buffers through the software portals
as long as the function returns -EBUSY and the number of retries is
__below__ DPAA2_ETH_SWP_BUSY_RETRIES.
Fixes: ef17bd7cc0c8 ("dpaa2-eth: Avoid unbounded while loops")
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Before passing the result of skb_to_sgvec() to dma_map_sg() check if any
error was returned.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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With the addition of multiple traffic classes support, the number
of available frame queues grew significantly, overly inflating the
debugfs FQ statistics entry. Update it to only show the queues
which are actually in use (i.e. have a non-zero frame counter).
Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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If we are not using in-band autonegotiation, there is no point passing
the request to restart autonegotiation on to the driver.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Convert the ar9331 DSA driver to use the finalised link parameters in
mac_link_up() rather than the parameters in mac_config().
Tested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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DMA buffers were not freed on failure path of at91ether_open().
Along with changes for freeing the DMA buffers the enable/disable
interrupt instructions were moved to at91ether_start()/at91ether_stop()
functions and the operations on at91ether_stop() were done in
their reverse order (compared with how is done in at91ether_start()):
before this patch the operation order on interface open path
was as follows:
1/ alloc DMA buffers
2/ enable tx, rx
3/ enable interrupts
and the order on interface close path was as follows:
1/ disable tx, rx
2/ disable interrupts
3/ free dma buffers.
Fixes: 7897b071ac3b ("net: macb: convert to phylink")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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