We fail to correctly clean up after a bus registration failure, which
can lead to an incorrect assumption about the registration state of
the upstream or sfp cage.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix bug in the error code path when bnxt_request_irq() returns failure.
bnxt_disable_napi() should not be called in this error path because
NAPI has not been enabled yet.
Fixes: c0c050c58d ("bnxt_en: New Broadcom ethernet driver.")
Signed-off-by: Vikas Gupta <vikas.gupta@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Calling bnxt_set_max_func_irqs() to modify the max IRQ count requested or
freed by the RDMA driver is flawed. The max IRQ count is checked when
re-initializing the IRQ vectors and this can happen multiple times
during ifup or ethtool -L. If the max IRQ is reduced and the RDMA
driver is operational, we may not initailize IRQs correctly. This
problem shows up on VFs with very small number of MSIX.
There is no other logic that relies on the IRQ count excluding the ones
used by RDMA. So we fix it by just removing the call to subtract or
add the IRQs used by RDMA.
Fixes: a588e4580a ("bnxt_en: Add interface to support RDMA driver.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently, the driver assumes IFF_BROADCAST is always set and always sets
the broadcast filter. Modify the code to set or clear the broadcast
filter according to the IFF_BROADCAST flag.
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The current code returns -ENOMEM and does not bother to set the output
parameters to 0 when no rings are available. Some callers, such as
bnxt_get_channels() will display garbage ring numbers when that happens.
Fix it by always setting the output parameters.
Fixes: 6e6c5a57fb ("bnxt_en: Modify bnxt_get_max_rings() to support shared or non shared rings.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If there aren't enough RX rings available, the driver will attempt to
use a single RX ring without the aggregation ring. If that also
fails, the BNXT_FLAG_AGG_RINGS flag is cleared but the other ring
parameters are not set consistently to reflect that. If more RX
rings become available at the next open, the RX rings will be in
an inconsistent state and may crash when freeing the RX rings.
Fix it by restoring the BNXT_FLAG_AGG_RINGS if not enough RX rings are
available to run without aggregation rings.
Fixes: bdbd1eb59c ("bnxt_en: Handle no aggregation ring gracefully.")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It is possible that OVS may set don’t care for DEI/CFI bit in
vlan_tci mask. Hence, checking for vlan_tci exact match will endup
in a vlan flow rejection.
This patch fixes the problem by checking for vlan_pcp and vid
separately, instead of checking for the entire vlan_tci.
Fixes: e85a9be93c (bnxt_en: do not allow wildcard matches for L2 flows)
Signed-off-by: Venkat Duvvuru <venkatkumar.duvvuru@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
GEM version in ZynqMP and most versions greater than r1p07 supports
TX and RX BD prefetch. The number of BDs that can be prefetched is a
HW configurable parameter. For ZynqMP, this parameter is 4.
When GEM DMA is accessing the last BD in the ring, even before the
BD is processed and the WRAP bit is noticed, it will have prefetched
BDs outside the BD ring. These will not be processed but it is
necessary to have accessible memory after the last BD. Especially
in cases where SMMU is used, memory locations immediately after the
last BD may not have translation tables triggering HRESP errors. Hence
always allocate extra BDs to accommodate for prefetch.
The value of tx/rx bd prefetch for any given SoC version is:
2 ^ (corresponding field in design config 10 register).
(value of this field >= 1)
Added a capability flag so that older IP versions that do not have
DCFG10 or this prefetch capability are not affected.
Signed-off-by: Harini Katakam <harini.katakam@xilinx.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
rx ring is allocated for all queues in macb_alloc_consistent.
Free the same for all queues instead of just Q0.
Signed-off-by: Harini Katakam <harini.katakam@xilinx.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
t4_get_flash_params() fails in a fatal fashion if the FLASH part isn't
one of the recognized parts. But this leads to desperate efforts to update
drivers when various FLASH parts which we are using suddenly become
unavailable and we need to substitute new FLASH parts. This has lead to
more than one Customer Field Emergency when a Customer has an old driver
and suddenly can't use newly shipped adapters.
This commit fixes this by simply assuming that the FLASH part is 4MB in
size if it can't be identified. Note that all Chelsio adapters will have
flash parts which are at least 4MB in size.
Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The generic phy_ethtool_set_link_ksettings() function from phylib can
be used instead of in-house ravb_set_link_ksettings().
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The generic phy_ethtool_get_link_ksettings() function from phylib can be
used instead of in-house ravb_get_link_ksettings().
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
phy_ethtool_ksettings_get() call does not modify device state or device
driver state, hence there is no need to utilize a driver specific
spinlock.
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The generic phy_ethtool_nway_reset() function from phylib can be used
instead of in-house ravb_nway_reset().
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is no need to call a heavyweight phy_start_aneg() for phy
auto-negotiation by ethtool, the phy is already initialized and
link auto-negotiation is started by calling phy_start() from
ravb_phy_start() when a network device is opened.
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The change fixes sleep in atomic context bug, which is encountered
every time when link settings are changed by ethtool.
Since commit 35b5f6b1a8 ("PHYLIB: Locking fixes for PHY I/O
potentially sleeping") phy_start_aneg() function utilizes a mutex
to serialize changes to phy state, however that helper function is
called in atomic context under a grabbed spinlock, because
phy_start_aneg() is called by phy_ethtool_ksettings_set() and by
replaced phy_ethtool_sset() helpers from phylib.
Now duplex mode setting is enforced in ravb_adjust_link() only, also
now RX/TX is disabled when link is put down or modifications to E-MAC
registers ECMR and GECMR are expected for both cases of checked and
ignored link status pin state from E-MAC interrupt handler.
Fixes: c156633f13 ("Renesas Ethernet AVB driver proper")
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since commit 35b5f6b1a8 ("PHYLIB: Locking fixes for PHY I/O
potentially sleeping") phy_start_aneg() function utilizes a mutex
to serialize changes to phy state, however the helper function is
called in atomic context.
The bug can be reproduced by running "ethtool -r" command, the bug
is reported if CONFIG_DEBUG_ATOMIC_SLEEP build option is enabled.
Fixes: c156633f13 ("Renesas Ethernet AVB driver proper")
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The generic phy_ethtool_set_link_ksettings() function from phylib can
be used instead of in-house sh_eth_set_link_ksettings().
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The generic phy_ethtool_get_link_ksettings() function from phylib can be
used instead of in-house sh_eth_get_link_ksettings().
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
phy_ethtool_ksettings_get() call does not modify device state or device
driver state, hence there is no need to utilize a driver specific
spinlock.
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The generic phy_ethtool_nway_reset() function from phylib can be used
instead of in-house sh_eth_nway_reset().
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There is no need to call a heavyweight phy_start_aneg() for phy
auto-negotiation by ethtool, the phy is already initialized and
link auto-negotiation is started by calling phy_start() from
sh_eth_phy_start() when a network device is opened.
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The change fixes sleep in atomic context bug, which is encountered
every time when link settings are changed by ethtool.
Since commit 35b5f6b1a8 ("PHYLIB: Locking fixes for PHY I/O
potentially sleeping") phy_start_aneg() function utilizes a mutex
to serialize changes to phy state, however that helper function is
called in atomic context under a grabbed spinlock, because
phy_start_aneg() is called by phy_ethtool_ksettings_set() and by
replaced phy_ethtool_sset() helpers from phylib.
Now duplex mode setting is enforced in sh_eth_adjust_link() only,
also now RX/TX is disabled when link is put down or modifications
to E-MAC registers ECMR and GECMR are expected for both cases of
checked and ignored link status pin state from E-MAC interrupt handler.
For reference the change is a partial rework of commit 1e1b812bbe
("sh_eth: fix handling of no LINK signal").
Fixes: dc19e4e5e0 ("sh: sh_eth: Add support ethtool")
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since commit 35b5f6b1a8 ("PHYLIB: Locking fixes for PHY I/O
potentially sleeping") phy_start_aneg() function utilizes a mutex
to serialize changes to phy state, however the helper function is
called in atomic context.
The bug can be reproduced by running "ethtool -r" command, the bug
is reported if CONFIG_DEBUG_ATOMIC_SLEEP build option is enabled.
Fixes: dc19e4e5e0 ("sh: sh_eth: Add support ethtool")
Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Setting up macvlan/macvtap networks over atlantic NIC results
in no traffic over these networks because ndo_set_rx_mode did
not listed UC MACs as registered in unicast filter.
Here we fix that taking into account maximum number of UC
filters supported by hardware. If more than MAX addresses were
registered, we just enable promisc and/or allmulti to pass
the traffic in.
We also remove MULTICAST_ADDRESS_MAX constant from aq_cfg since
thats not a configurable parameter at all.
Fixes: b21f502 ("net:ethernet:aquantia: Fix for multicast filter handling.")
Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
schedule_timeout_* takes a timeout in jiffies but the code currently is
passing in a constant which makes this timeout HZ dependent. So define
a constant with (hopefully) meaningful name and pass it through
msecs_to_jiffies() to fix the HZ dependency.
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
commit f21fb3ed36 ("Add support of Cavium Liquidio ethernet adapters")
Acked-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This adds the USB id of LTE modem Quectel EG91. It requires the
same quirk as other Quectel modems to make it work.
Signed-off-by: Matevz Vucnik <vucnikm@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
If format_idx == s_mcp_trace_meta.formats_num then we read one element
beyond the end of the s_mcp_trace_meta.formats[] array.
Fixes: 50bc60cb15 ("qed*: Utilize FW 8.33.11.0")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Tomer Tayar <Tomer.Tayar@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Configuration information read at driver load can become stale after it is
updated. Mark information as not valid and re-populate when this happens.
Signed-off-by: Denis Bolotin <denis.bolotin@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently also the pause flags are removed from phydev->supported because
they're not included in PHY_DEFAULT_FEATURES. I don't think this is
intended, especially when considering that this function can be called
via phy_set_max_speed() anywhere in a driver. Change the masking to mask
out only the values we're going to change. In addition remove the
misleading comment, job of this small function is just to adjust the
supported and advertised speeds.
Fixes: f3a6bd393c ("phylib: Add phy_set_max_speed helper")
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>
In certain conditions, the device may not be able to link in gigabit mode. This software workaround ensures that the device will not enter the failure state.
Fixes: d0cad87170 ("SMSC75XX USB 2.0 Gigabit Ethernet Devices")
Signed-off-by: Yuiko Oshino <yuiko.oshino@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
NetworkManager likes to manage linklocal prefix routes and does so with
the NLM_F_APPEND flag, breaking attempts to simplify the IPv6 route
code and by extension enable multipath routes with device only nexthops.
Revert f34436a430 and these followup patches:
6eba08c362 ("ipv6: Only emit append events for appended routes").
ce45bded64 ("mlxsw: spectrum_router: Align with new route replace logic")
53b562df8c ("mlxsw: spectrum_router: Allow appending to dev-only routes")
Update the fib_tests cases to reflect the old behavior.
Fixes: f34436a430 ("net/ipv6: Simplify route replace and appending into multipath route")
Signed-off-by: David Ahern <dsahern@gmail.com>
The m88e1121 LED default configuration does not apply m88e151x.
So add a function to relpace m88e1121 LED configuration.
Signed-off-by: Wang Dongsheng <dongsheng.wang@hxt-semitech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
First set of fixes for 4.18 and for numerous drivers. Something to mention
about is the wcn36xx fix which makes it possible to compile with gcc older than
4.4 (though I'm not sure if we even support those anymore).
qtnfmac
* coverity fix for a new commit in v4.18-rc1
rtlwifi
* fix kernel oops during driver removal
* fix firmware image corruption for rtl8821ae
brcmfmac
* fix crash if there's no firmware image
mwifiex
* a revert and a better fix for a new commit v4.18-rc1
mt7601u
* fix a recent regression about unnecessary warning about avg_rssi
wcn36xx
* convert testmode.c to plain ASCII
ath10k
* fix a firmware crash during bandwidth change
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Merge tag 'wireless-drivers-for-davem-2018-07-03' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers
Kalle Valo says:
====================
wireless-drivers fixes for 4.18
First set of fixes for 4.18 and for numerous drivers. Something to mention
about is the wcn36xx fix which makes it possible to compile with gcc older than
4.4 (though I'm not sure if we even support those anymore).
qtnfmac
* coverity fix for a new commit in v4.18-rc1
rtlwifi
* fix kernel oops during driver removal
* fix firmware image corruption for rtl8821ae
brcmfmac
* fix crash if there's no firmware image
mwifiex
* a revert and a better fix for a new commit v4.18-rc1
mt7601u
* fix a recent regression about unnecessary warning about avg_rssi
wcn36xx
* convert testmode.c to plain ASCII
ath10k
* fix a firmware crash during bandwidth change
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Network core refuses to change mac address because flag
IFF_LIVE_ADDR_CHANGE isn't set. Set this missing flag.
Fixes: 1f7aa2bc26 ("r8169: simplify rtl_set_mac_address")
Reported-by: Corinna Vinschen <vinschen@redhat.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Tested-by: Corinna Vinschen <vinschen@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull networking fixes from David Miller:
1) Verify netlink attributes properly in nf_queue, from Eric Dumazet.
2) Need to bump memory lock rlimit for test_sockmap bpf test, from
Yonghong Song.
3) Fix VLAN handling in lan78xx driver, from Dave Stevenson.
4) Fix uninitialized read in nf_log, from Jann Horn.
5) Fix raw command length parsing in mlx5, from Alex Vesker.
6) Cleanup loopback RDS connections upon netns deletion, from Sowmini
Varadhan.
7) Fix regressions in FIB rule matching during create, from Jason A.
Donenfeld and Roopa Prabhu.
8) Fix mpls ether type detection in nfp, from Pieter Jansen van Vuuren.
9) More bpfilter build fixes/adjustments from Masahiro Yamada.
10) Fix XDP_{TX,REDIRECT} flushing in various drivers, from Jesper
Dangaard Brouer.
11) fib_tests.sh file permissions were broken, from Shuah Khan.
12) Make sure BH/preemption is disabled in data path of mac80211, from
Denis Kenzior.
13) Don't ignore nla_parse_nested() return values in nl80211, from
Johannes berg.
14) Properly account sock objects ot kmemcg, from Shakeel Butt.
15) Adjustments to setting bpf program permissions to read-only, from
Daniel Borkmann.
16) TCP Fast Open key endianness was broken, it always took on the host
endiannness. Whoops. Explicitly make it little endian. From Yuching
Cheng.
17) Fix prefix route setting for link local addresses in ipv6, from
David Ahern.
18) Potential Spectre v1 in zatm driver, from Gustavo A. R. Silva.
19) Various bpf sockmap fixes, from John Fastabend.
20) Use after free for GRO with ESP, from Sabrina Dubroca.
21) Passing bogus flags to crypto_alloc_shash() in ipv6 SR code, from
Eric Biggers.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (87 commits)
qede: Adverstise software timestamp caps when PHC is not available.
qed: Fix use of incorrect size in memcpy call.
qed: Fix setting of incorrect eswitch mode.
qed: Limit msix vectors in kdump kernel to the minimum required count.
ipvlan: call dev_change_flags when ipvlan mode is reset
ipv6: sr: fix passing wrong flags to crypto_alloc_shash()
net: fix use-after-free in GRO with ESP
tcp: prevent bogus FRTO undos with non-SACK flows
bpf: sockhash, add release routine
bpf: sockhash fix omitted bucket lock in sock_close
bpf: sockmap, fix smap_list_map_remove when psock is in many maps
bpf: sockmap, fix crash when ipv6 sock is added
net: fib_rules: bring back rule_exists to match rule during add
hv_netvsc: split sub-channel setup into async and sync
net: use dev_change_tx_queue_len() for SIOCSIFTXQLEN
atm: zatm: Fix potential Spectre v1
s390/qeth: consistently re-enable device features
s390/qeth: don't clobber buffer on async TX completion
s390/qeth: avoid using is_multicast_ether_addr_64bits on (u8 *)[6]
s390/qeth: fix race when setting MAC address
...
When ptp clock is not available for a PF (e.g., higher PFs in NPAR mode),
get-tsinfo() callback should return the software timestamp capabilities
instead of returning the error.
Fixes: 4c55215c ("qede: Add driver support for PTP")
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use the correct size value while copying chassis/port id values.
Fixes: 6ad8c632e ("qed: Add support for query/config dcbx.")
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
By default, driver sets the eswitch mode incorrectly as VEB (virtual
Ethernet bridging).
Need to set VEB eswitch mode only when sriov is enabled, and it should be
to set NONE by default. The patch incorporates this change.
Fixes: 0fefbfbaa ("qed*: Management firmware - notifications and defaults")
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Memory size is limited in the kdump kernel environment. Allocation of more
msix-vectors (or queues) consumes few tens of MBs of memory, which might
lead to the kdump kernel failure.
This patch adds changes to limit the number of MSI-X vectors in kdump
kernel to minimum required value (i.e., 2 per engine).
Fixes: fe56b9e6a ("qed: Add module with basic common support")
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
After we change the ipvlan mode from l3 to l2, or vice versa, we only
reset IFF_NOARP flag, but don't flush the ARP table cache, which will
cause eth->h_dest to be equal to eth->h_source in ipvlan_xmit_mode_l2().
Then the message will not come out of host.
Here is the reproducer on local host:
ip link set eth1 up
ip addr add 192.168.1.1/24 dev eth1
ip link add link eth1 ipvlan1 type ipvlan mode l3
ip netns add net1
ip link set ipvlan1 netns net1
ip netns exec net1 ip link set ipvlan1 up
ip netns exec net1 ip addr add 192.168.2.1/24 dev ipvlan1
ip route add 192.168.2.0/24 via 192.168.1.2
ping 192.168.2.2 -c 2
ip netns exec net1 ip link set ipvlan1 type ipvlan mode l2
ping 192.168.2.2 -c 2
Add the same configuration on remote host. After we set the mode to l2,
we could find that the src/dst MAC addresses are the same on eth1:
21:26:06.648565 00:b7:13:ad:d3:05 > 00:b7:13:ad:d3:05, ethertype IPv4 (0x0800), length 98: (tos 0x0, ttl 64, id 58356, offset 0, flags [DF], proto ICMP (1), length 84)
192.168.2.1 > 192.168.2.2: ICMP echo request, id 22686, seq 1, length 64
Fix this by calling dev_change_flags(), which will call netdevice notifier
with flag change info.
v2:
a) As pointed out by Wang Cong, check return value for dev_change_flags() when
change dev flags.
b) As suggested by Stefano and Sabrina, move flags setting before l3mdev_ops.
So we don't need to redo ipvlan_{, un}register_nf_hook() again in err path.
Reported-by: Jianlin Shi <jishi@redhat.com>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Fixes: 2ad7bf3638 ("ipvlan: Initial check-in of the IPVLAN driver.")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since the addition of GRO for ESP, gro_receive can consume the skb and
return -EINPROGRESS. In that case, the lower layer GRO handler cannot
touch the skb anymore.
Commit 5f114163f2 ("net: Add a skb_gro_flush_final helper.") converted
some of the gro_receive handlers that can lead to ESP's gro_receive so
that they wouldn't access the skb when -EINPROGRESS is returned, but
missed other spots, mainly in tunneling protocols.
This patch finishes the conversion to using skb_gro_flush_final(), and
adds a new helper, skb_gro_flush_final_remcsum(), used in VXLAN and
GUE.
Fixes: 5f114163f2 ("net: Add a skb_gro_flush_final helper.")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Daniel Borkmann says:
====================
pull-request: bpf 2018-07-01
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) A bpf_fib_lookup() helper fix to change the API before freeze to
return an encoding of the FIB lookup result and return the nexthop
device index in the params struct (instead of device index as return
code that we had before), from David.
2) Various BPF JIT fixes to address syzkaller fallout, that is, do not
reject progs when set_memory_*() fails since it could still be RO.
Also arm32 JIT was not using bpf_jit_binary_lock_ro() API which was
an issue, and a memory leak in s390 JIT found during review, from
Daniel.
3) Multiple fixes for sockmap/hash to address most of the syzkaller
triggered bugs. Usage with IPv6 was crashing, a GPF in bpf_tcp_close(),
a missing sock_map_release() routine to hook up to callbacks, and a
fix for an omitted bucket lock in sock_close(), from John.
4) Two bpftool fixes to remove duplicated error message on program load,
and another one to close the libbpf object after program load. One
additional fix for nfp driver's BPF offload to avoid stopping offload
completely if replace of program failed, from Jakub.
5) Couple of BPF selftest fixes that bail out in some of the test
scripts if the user does not have the right privileges, from Jeffrin.
6) Fixes in test_bpf for s390 when CONFIG_BPF_JIT_ALWAYS_ON is set
where we need to set the flag that some of the test cases are expected
to fail, from Kleber.
7) Fix to detangle BPF_LIRC_MODE2 dependency from CONFIG_CGROUP_BPF
since it has no relation to it and lirc2 users often have configs
without cgroups enabled and thus would not be able to use it, from Sean.
8) Fix a selftest failure in sockmap by removing a useless setrlimit()
call that would set a too low limit where at the same time we are
already including bpf_rlimit.h that does the job, from Yonghong.
9) Fix BPF selftest config with missing missing NET_SCHED, from Anders.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
When doing device hotplug the sub channel must be async to avoid
deadlock issues because device is discovered in softirq context.
When doing changes to MTU and number of channels, the setup
must be synchronous to avoid races such as when MTU and device
settings are done in a single ip command.
Reported-by: Thomas Walker <Thomas.Walker@twosigma.com>
Fixes: 8195b1396e ("hv_netvsc: fix deadlock on hotplug")
Fixes: 732e49850c ("netvsc: fix race on sub channel creation")
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The __alx_open function can be called from ndo_open, which is called
under RTNL, or from alx_resume, which isn't. Since commit d768319cd4,
we're calling the netif_set_real_num_{tx,rx}_queues functions, which
need to be called under RTNL.
This is similar to commit 0c2cc02e57 ("igb: Move the calls to set the
Tx and Rx queues into igb_open").
Fixes: d768319cd4 ("alx: enable multiple tx queues")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fixes: fc7a6c287f ("sfc: use a semaphore to lock farch filters too")
Suggested-by: Joseph Korty <joe.korty@concurrent-rt.com>
Signed-off-by: Bert Kenward <bkenward@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix a bug where INT_STAT1 was written twice and
INT_STAT2 was ignored when disabling interrupts.
Fixes: b753a9faaf ("net: phy: DP83TC811: Introduce support for the DP83TC811 phy")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Dan Murphy <dmurphy@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The DPAA HW requires that at least 256 bytes from the start of the
first scatter-gather table entry are allocated and accessible. The
hardware reads the maximum size the table can have in one access,
thus requiring that the allocation and mapping to be done for the
maximum size of 256B even if there is a smaller number of entries
in the table.
Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The FMan hardware parser needs to be configured to remove the
short frame padding from the checksum calculation, otherwise
short UDP and TCP frames are likely to be marked as having a
bad checksum.
Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Driver performs the internal reload when it receives tx-timeout event from
the OS. Internal reload might fail in some scenarios e.g., fatal HW issues.
In such cases OS still see the link, which would result in undesirable
functionalities such as re-generation of tx-timeouts.
The patch addresses this issue by indicating the link-down to OS when
tx-timeout is detected, and keeping the link in down state till the
internal reload is successful.
Please consider applying it to 'net' branch.
Signed-off-by: Sudarsana Reddy Kalluru <Sudarsana.Kalluru@cavium.com>
Signed-off-by: Ariel Elior <ariel.elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
