The longstanding prohibition against using 0.0.0.0/8 dates back
to two issues with the early internet.
There was an interoperability problem with BSD 4.2 in 1984, fixed in
BSD 4.3 in 1986. BSD 4.2 has long since been retired.
Secondly, addresses of the form 0.x.y.z were initially defined only as
a source address in an ICMP datagram, indicating "node number x.y.z on
this IPv4 network", by nodes that know their address on their local
network, but do not yet know their network prefix, in RFC0792 (page
19). This usage of 0.x.y.z was later repealed in RFC1122 (section
3.2.2.7), because the original ICMP-based mechanism for learning the
network prefix was unworkable on many networks such as Ethernet (which
have longer addresses that would not fit into the 24 "node number"
bits). Modern networks use reverse ARP (RFC0903) or BOOTP (RFC0951)
or DHCP (RFC2131) to find their full 32-bit address and CIDR netmask
(and other parameters such as default gateways). 0.x.y.z has had
16,777,215 addresses in 0.0.0.0/8 space left unused and reserved for
future use, since 1989.
This patch allows for these 16m new IPv4 addresses to appear within
a box or on the wire. Layer 2 switches don't care.
0.0.0.0/32 is still prohibited, of course.
Signed-off-by: Dave Taht <dave.taht@gmail.com>
Signed-off-by: John Gilmore <gnu@toad.com>
Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
dst_default_metrics has all of the metrics initialized to 0, so nothing
will be added to the skb in rtnetlink_put_metrics. Avoid the loop if
metrics is from dst_default_metrics.
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Puranjay Mohan says:
====================
net: fddi: skfp: Use PCI generic definitions instead of private duplicates
This patch series removes the private duplicates of PCI definitions in
favour of generic definitions defined in pci_regs.h.
This driver only uses some of the generic PCI definitons,
which are included from pci_regs.h and thier private versions
are removed from skfbi.h with all other private defines.
The skfbi.h defines PCI_REV_ID and other private defines with different
names, these are renamed to Generic PCI names to make them
compatible with defines in pci_regs.h.
All unused defines are removed from skfbi.h.
Changes in v5:
Removed unused PCI definitions which were left in v4
Changes in v4:
Removed unused PCI definitions which were left in v3
Changes in v3:
Renamed all local PCI definitions to Generic names.
Corrected coding style mistakes.
Changes in v2:
Converted individual patches to a series.
Made sure that individual patches build correctly
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Remove unused private PCI definitions from skfbi.h because generic PCI
symbols are already included from pci_regs.h.
Signed-off-by: Puranjay Mohan <puranjay12@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Include the uapi/linux/pci_regs.h header file which contains the generic
PCI defines.
Signed-off-by: Puranjay Mohan <puranjay12@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Rename the PCI_REV_ID and other local defines to Generic PCI define names
in skfbi.h and drvfbi.c to make it compatible with the pci_regs.h.
Signed-off-by: Puranjay Mohan <puranjay12@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
First set of patches for 5.3, but not that many patches this time.
This pull request fails to compile with the tip tree due to
ktime_get_boot_ns() API changes there. It should be easy for Linus to
fix it in p54 driver once he pulls this, an example resolution here:
https://lkml.kernel.org/r/20190625160432.533aa140@canb.auug.org.au
Major changes:
airo
* switch to use skcipher interface
p54
* support boottime in scan results
rtw88
* add fast xmit support
* add random mac address on scan support
rt2x00
* add software watchdog to detect hangs, it's disabled by default
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Merge tag 'wireless-drivers-next-for-davem-2019-06-26' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next
Kalle Valu says:
====================
wireless-drivers-next patches for 5.3
First set of patches for 5.3, but not that many patches this time.
This pull request fails to compile with the tip tree due to
ktime_get_boot_ns() API changes there. It should be easy for Linus to
fix it in p54 driver once he pulls this, an example resolution here:
https://lkml.kernel.org/r/20190625160432.533aa140@canb.auug.org.au
Major changes:
airo
* switch to use skcipher interface
p54
* support boottime in scan results
rtw88
* add fast xmit support
* add random mac address on scan support
rt2x00
* add software watchdog to detect hangs, it's disabled by default
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
If the PHY does not support EEE mode, then a crash is observed when the
ethernet interface is enabled. The crash occurs, because if the PHY does
not support EEE, then although the EEE timer is never configured, it is
still marked as enabled and so the stmmac ethernet driver is still
trying to update the timer by calling mod_timer(). This triggers a BUG()
in the mod_timer() because we are trying to update a timer when there is
no callback function set because timer_setup() was never called for this
timer.
The problem is caused because we return true from the function
stmmac_eee_init(), marking the EEE timer as enabled, even when we have
not configured the EEE timer. Fix this by ensuring that we return false
if the PHY does not support EEE and hence, 'eee_active' is not set.
Fixes: 74371272f9 ("net: stmmac: Convert to phylink and remove phylib logic")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When stmmac_eee_init() is called to disable EEE support, then the timer
for EEE support is stopped and we return from the function. Prior to
stopping the timer, a mutex was acquired but in this case it is never
released and so could cause a deadlock. Fix this by releasing the mutex
prior to returning from stmmax_eee_init() when stopping the EEE timer.
Fixes: 74371272f9 ("net: stmmac: Convert to phylink and remove phylib logic")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This reverts commit 315c28d2b7 ("net: ena: ethtool: add extra properties retrieval via get_priv_flags").
As discussed at netconf and on the mailing list we can't allow
for the the abuse of private flags for exposing arbitrary device
labels.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Huazhong Tan says:
====================
net: hns3: some code optimizations & bugfixes
This patch-set includes code optimizations and bugfixes for
the HNS3 ethernet controller driver.
[patch 1/11] fixes a selftest issue when doing autoneg.
[patch 2/11 - 3-11] adds two code optimizations about VLAN issue.
[patch 4/11] restores the MAC autoneg state after reset.
[patch 5/11 - 8/11] adds some code optimizations and bugfixes about
HW errors handling.
[patch 9/11 - 11/11] fixes some issues related to driver loading and
unloading.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
If we failed to enable NIC HW error interrupts during client
initialization in some cases, we should do exception handling to clear
flags and free the resources.
Fixes: 00ea6e5fda ("net: hns3: delay and separate enabling of NIC and ROCE HW errors")
Signed-off-by: Weihang Li <liweihang@hisilicon.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The ROCE HW errors should only be enabled when initializing ROCE's
client, the current code enable it no matter initializing NIC or
ROCE client.
So this patch fixes it.
Fixes: 00ea6e5fda ("net: hns3: delay and separate enabling of NIC and ROCE HW errors")
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When loading or unloading module, it should wait for the reset task
done before it un-initializes the client, otherwise the reset task
may cause a NULL pointer reference.
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds check to number of bds before we allocate memory for
them. If we get an invalid bd num in some cases, it will cause a memory
overflow.
Signed-off-by: Weihang Li <liweihang@hisilicon.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We add override_pci_need_reset to prevent redundant and unwanted PF
resets if a RAS error occurs in commit 69b51bbb03 ("net: hns3: fix
to stop multiple HNS reset due to the AER changes").
Now in HNS3 driver, we use hw_err_reset_req to record reset level that
we need to recover from a RAS error. This variable cans solve above
issue as override_pci_need_reset, so this patch removes
override_pci_need_reset.
Signed-off-by: Weihang Li <liweihang@hisilicon.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Users should be informed if HNS driver failed to allocate memory for
descriptor when handling hw errors. This patch solve above issues.
Signed-off-by: Weihang Li <liweihang@hisilicon.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch optimizes hclge_handle_hw_ras_error() to make the code logic
clearer.
1. If there was no NIC or Roce RAS when we read
HCLGE_RAS_PF_OTHER_INT_STS_REG, we return directly.
2. Because NIC and Roce RAS may occurs at the same time, so we should
check value of revision at first before we handle Roce RAS instead
of only checking it in branch of no NIC RAS is detected.
3. Check HCLGE_STATE_RST_HANDLING each time before we want to return
PCI_ERS_RESULT_NEED_RESET.
4. Remove checking of HCLGE_RAS_REG_NFE_MASK and
HCLGE_RAS_REG_ROCEE_ERR_MASK because if hw_err_reset_req is not
zero, it proves that we have set it in handling of NIC or Roce RAS.
Signed-off-by: Weihang Li <liweihang@hisilicon.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When doing global reset, the MAC autoneg state of fibre
port is set to default, which may cause user configuration
lost. This patch fixes it by restore the MAC autoneg state
after reset.
Fixes: 22f48e24a2 ("net: hns3: add autoneg and change speed support for fibre port")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When HW is resetting, firmware is unable to handle commands
from driver. So if remove VLAN device from stack at this time,
it will fail to remove the VLAN ID from HW VLAN filter, then
the VLAN filter status is unsynced with stack.
This patch fixes it by recording the VLAN ID delete failed,
and removes them again when reset complete.
Fixes: 44e626f720 ("net: hns3: fix VLAN offload handle for VLAN inserted by port")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
For VF VLAN filter is disabled when VF VLAN table is full, then the
new VLAN ID won't be added into VF VLAN table, it will always print
fail log when remove these VLAN IDs. If user has added too many
VLANs, it will cause massive verbose print logs.
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When doing selftest for fibre port with autoneg on, the MAC speed
may be incorrect, which may cause the selftest failed. This patch
fixes it by halting autoneg during the selftest.
Fixes: 22f48e24a2 ("net: hns3: add autoneg and change speed support for fibre port")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We rename the inline function msg_get_wrapped() to the more
comprehensible msg_inner_hdr().
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We increase the allocated headroom for the buffer copies to be
retransmitted. This eliminates the need for the lower stack levels
(UDP/IP/L2) to expand the headroom in order to add their own headers.
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In commit a4dc70d46c ("tipc: extend link reset criteria for stale
packet retransmission") we made link retransmission failure events
dependent on the link tolerance, and not only of the number of failed
retransmission attempts, as we did earlier. This works well. However,
keeping the original, additional criteria of 99 failed retransmissions
is now redundant, and may in some cases lead to failure detection
times in the order of minutes instead of the expected 1.5 sec link
tolerance value.
We now remove this criteria altogether.
Acked-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch restores the original behaviour for tdc prior to the
introduction of the plugin system, where the network namespace
functionality was split from the main script.
It introduces the concept of required plugins for testcases,
and will automatically load any plugin that isn't already
enabled when said plugin is required by even one testcase.
Additionally, the -n option for the nsPlugin is deprecated
so the default action is to make use of the namespaces.
Instead, we introduce -N to not use them, but still create
the veth pair.
buildebpfPlugin's -B option is also deprecated.
If a test cases requires the features of a specific plugin
in order to pass, it should instead include a new key/value
pair describing plugin interactions:
"plugins": {
"requires": "buildebpfPlugin"
},
A test case can have more than one required plugin: a list
can be inserted as the value for 'requires'.
Signed-off-by: Lucas Bates <lucasb@mojatatu.com>
Acked-by: Davide Caratti <dcaratti@redhat.com>
Tested-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pablo Neira Ayuso says:
====================
Netfilter updates for net-next
The following patches contains Netfilter updates for net-next:
1) .br_defrag indirection depends on CONFIG_NF_DEFRAG_IPV6, from wenxu.
2) Remove unnecessary memset() in ipset, from Florent Fourcot.
3) Merge control plane addition and deletion in ipset, also from Florent.
4) A few missing check for nla_parse() in ipset, from Aditya Pakki
and Jozsef Kadlecsik.
5) Incorrect cleanup in error path of xt_set version 3, from Jozsef.
6) Memory accounting problems when resizing in ipset, from Stefano Brivio.
7) Jozsef updates his email to @netfilter.org, this batch comes with a
conflict resolution with recent SPDX header updates.
8) Add to create custom conntrack expectations via nftables, from
Stephane Veyret.
9) A lookup optimization for conntrack, from Florian Westphal.
10) Check for supported flags in xt_owner.
11) Support for pernet sysctl in br_netfilter, patches
from Christian Brauner.
12) Patches to move common synproxy infrastructure to nf_synproxy.c,
to prepare the synproxy support for nf_tables, patches from
Fernando Fernandez Mancera.
13) Support to restore expiration time in set element, from Laura Garcia.
14) Fix recent rewrite of netfilter IPv6 to avoid indirections
when CONFIG_IPV6 is unset, from Arnd Bergmann.
15) Always reset vlan tag on skbuff fraglist when refragmenting in
bridge conntrack, from wenxu.
16) Support to match IPv4 options in nf_tables, from Stephen Suryaputra.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The AIRO driver applies a ctr(aes) on a buffer of considerable size
(2400 bytes), and instead of invoking the crypto API to handle this
in its entirety, it open codes the counter manipulation and invokes
the AES block cipher directly.
Let's fix this, by switching to the sync skcipher API instead.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Make watchdog disabled by default and add module parameter to enable it.
User will have to create file in /etc/modprobe.d/ with
options rt2800lib watchdog=1
to enable the watchdog or load "rt2800lib watchdog=1" module manually
before loading rt2800{soc,pci,usb} module.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Add ieee80211_restart_hw() to watchdog and debugfs file for testing
if restart works as expected.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
If we restart hw we should keep existing IV (initialization vector)
otherwise HW encryption will be broken after restart.
Also fix some coding style issues on the way.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Add routine to cleanup interfaces data before hw reset as
ieee80211_restart_hw() will do setup interfaces again.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Add watchdog for rt2800 devices. For now it only detect hung
and print error.
[Note: I verified that printing messages from process context is
fine on MT7620 (WT3020) platform that have problem when printk
is called from interrupt context].
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
For mmio we do not properlly trace dma done Q_INDEX_DMA_DONE index
for TX queues. That would require implementing INT_SOURCE_CSR_*_DMA_DONE
interrupts, what is rather not worth to do due to adding extra
CPU load (small but still somewhat not necessary otherwise).
We can just read TX DMA done indexes from registers directly. What
will be used by watchdog.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Allow subdriver to change watchdog interval by intialize
link->watchdog_interval value before rt2x00link_register().
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This patch removes the error branch for (queue > dev->queues).
It is no longer needed anymore as the "queue" value is validated by
cfg80211's parse_txq_params() before the driver code gets called.
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
rtw_writ16_set should be rtw_write16_set
Signed-off-by: Tzu-En Huang <tehuang@realtek.com>
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
The hardware default uses management queue to transmit frames that are
downloaded into reserved page, so we need to clearly assign the frames
to use qsel in TX_DESC_QSEL_MGMT to avoid using wrong queue.
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
DACK is done right after the hardware has been turned on, which
means it will be done every time we leave the IDLE state.
But it takes ~2 seconds to finish DACK.
We can back up the results and restore them. And it only takes a few
milliseconds to restore the results to the hardware, saving a lot of
time.
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
We could fail to power on because it was already on. If the return
value is -EALREADY, power off and then power on again to turn on the
hardware as expected.
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
8822c used to count OFDM FA count by subtracting tx count from FA count.
But it need to substract more counters to be accurate.
However, we can count it by adding up all of the FA counters we want.
And it is simpler to add than list all of the components to substract.
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Driver Could fail to reset counter if rx clock gating is not disabled.
So we need to disable rx clock gating before resetting counters.
Otherwise counters may increase unexpected.
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
In 2G channels, the cck source and rxagc should be set to different
values based on different bandwidth to increase the performance of rx
sensitivity.
To improve rx throughput performance, the values of sbd subtune and
pt_opt should be changed in different bandwidth.
Signed-off-by: Chien-Hsun Liao <ben.liao@realtek.com>
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Collision of writing rf registers could occur if the driver writes
rf registers by direct write while the hardware is writing other rf
registers by pi write simultaneously.
Hardware pi write can be triggered by rf calibrations sometimes, so
the driver can not always write rf registers by direct write
protection. Direct write protection can make sure that there is no
hardware pi write during the direct write.
According to some experiments, if we add direct write protection
when switching channel, the performance of rf calibration will not
be affected.
Signed-off-by: Chien-Hsun Liao <ben.liao@realtek.com>
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Add beacon function setting routines for each hardware port.
If beacon function is not enabled, the hardware is not able
to synchronize with AP's beacon and can miss the beacons
under some scenarios such as PS mode.
For AP and Adhoc modes that require to send beacons, do not
update the TSF, otherwise the beacon interval may be affected.
Signed-off-by: Chin-Yen Lee <timlee@realtek.com>
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
When driver uses random mac address to scan, the unicast probe response
will not be received because the addr1 is not matched. Configure port
address by requested mac address to receive probe response from AP.
To support random mac scan, we need to configure the mac address during
scan period to receive unicast prop_resp. After scan is completed,
configure the mac address back to the original one that the port used.
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
With dynamic power save support, rtw88 is able to support fast tx
path, claim it to mac80211.
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Dave Taht