Dan Carpenter [Wed, 20 Nov 2019 12:34:38 +0000 (15:34 +0300)]
net: rtnetlink: prevent underflows in do_setvfinfo()
The "ivm->vf" variable is a u32, but the problem is that a number of
drivers cast it to an int and then forget to check for negatives. An
example of this is in the cxgb4 driver.
Linus Torvalds [Fri, 22 Nov 2019 17:18:16 +0000 (09:18 -0800)]
Merge tag 'pm-5.4-final' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management regression fix from Rafael Wysocki:
"Fix problems with switching cpufreq drivers on some x86 systems with
ACPI (and with changing the operation modes of the intel_pstate driver
on those systems) introduced by recent changes related to the
management of frequency limits in cpufreq"
* tag 'pm-5.4-final' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM: QoS: Invalidate frequency QoS requests after removal
Linus Torvalds [Fri, 22 Nov 2019 17:14:30 +0000 (09:14 -0800)]
Merge tag 'drm-fixes-2019-11-22' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Two sets of fixes in here, one for amdgpu, and one for i915.
The amdgpu ones are pretty small, i915's CI system seems to have a few
problems in the last week or so, there is one major regression fix for
fb_mmap, but there are a bunch of other issues fixed in there as well,
oops, screen flashes and rcu related.
amdgpu:
- Remove experimental flag for navi14
- Fix confusing power message failures on older VI parts
- Hang fix for gfxoff when using the read register interface
- Two stability regression fixes for Raven
i915:
- Fix kernel oops on dumb_create ioctl on no crtc situation
- Fix bad ugly colored flash on VLV/CHV related to gamma LUT update
- Fix unity of the frequencies reported on PMU
- Fix kernel oops on set_page_dirty using better locks around it
- Protect the request pointer with RCU to prevent it being freed
while we might need still
- Make pool objects read-only
- Restore physical addresses for fb_map to avoid corrupted page
table"
* tag 'drm-fixes-2019-11-22' of git://anongit.freedesktop.org/drm/drm:
drm/i915/fbdev: Restore physical addresses for fb_mmap()
Revert "drm/amd/display: enable S/G for RAVEN chip"
drm/amdgpu: disable gfxoff on original raven
drm/amdgpu: disable gfxoff when using register read interface
drm/amd/powerplay: correct fine grained dpm force level setting
drm/amd/powerplay: issue no PPSMC_MSG_GetCurrPkgPwr on unsupported ASICs
drm/amdgpu: remove experimental flag for Navi14
drm/i915: make pool objects read-only
drm/i915: Protect request peeking with RCU
drm/i915/userptr: Try to acquire the page lock around set_page_dirty()
drm/i915/pmu: "Frequency" is reported as accumulated cycles
drm/i915: Preload LUTs if the hw isn't currently using them
drm/i915: Don't oops in dumb_create ioctl if we have no crtcs
Andrey Ryabinin [Fri, 22 Nov 2019 01:54:01 +0000 (17:54 -0800)]
mm/ksm.c: don't WARN if page is still mapped in remove_stable_node()
It's possible to hit the WARN_ON_ONCE(page_mapped(page)) in
remove_stable_node() when it races with __mmput() and squeezes in
between ksm_exit() and exit_mmap().
WARNING: CPU: 0 PID: 3295 at mm/ksm.c:888 remove_stable_node+0x10c/0x150
mm/memory_hotplug: don't access uninitialized memmaps in shrink_zone_span()
Let's limit shrinking to !ZONE_DEVICE so we can fix the current code.
We should never try to touch the memmap of offline sections where we
could have uninitialized memmaps and could trigger BUGs when calling
page_to_nid() on poisoned pages.
There is no reliable way to distinguish an uninitialized memmap from an
initialized memmap that belongs to ZONE_DEVICE, as we don't have
anything like SECTION_IS_ONLINE we can use similar to
pfn_to_online_section() for !ZONE_DEVICE memory.
E.g., set_zone_contiguous() similarly relies on pfn_to_online_section()
and will therefore never set a ZONE_DEVICE zone consecutive. Stopping
to shrink the ZONE_DEVICE therefore results in no observable changes,
besides /proc/zoneinfo indicating different boundaries - something we
can totally live with.
Before commit d0dc12e86b31 ("mm/memory_hotplug: optimize memory
hotplug"), the memmap was initialized with 0 and the node with the right
value. So the zone might be wrong but not garbage. After that commit,
both the zone and the node will be garbage when touching uninitialized
memmaps.
Toshiki reported a BUG (race between delayed initialization of
ZONE_DEVICE memmaps without holding the memory hotplug lock and
concurrent zone shrinking).
https://lkml.org/lkml/2019/11/14/1040
"Iteration of create and destroy namespace causes the panic as below:
While creating a namespace and initializing memmap, if you destroy the
namespace and shrink the zone, it will initialize the memmap outside
the zone and trigger VM_BUG_ON_PAGE(!zone_spans_pfn(page_zone(page),
pfn), page) in set_pfnblock_flags_mask()."
This BUG is also mitigated by this commit, where we for now stop to
shrink the ZONE_DEVICE zone until we can do it in a safe and clean way.
Commit 56e94ea132bb ("fs: ocfs2: fix possible null-pointer dereferences
in ocfs2_xa_prepare_entry()") introduces a regression that fail to
create directory with mount option user_xattr and acl. Actually the
reported NULL pointer dereference case can be correctly handled by
loc->xl_ops->xlo_add_entry(), so revert it.
A device driver for CAN controller hardware registers itself with the
Linux network layer as a network device. So, the driver data for m_can
should ideally be of type net_device.
mac80211: Use Airtime-based Queue Limits (AQL) on packet dequeue
The previous commit added the ability to throttle stations when they queue
too much airtime in the hardware. This commit enables the functionality by
calculating the expected airtime usage of each packet that is dequeued from
the TXQs in mac80211, and accounting that as pending airtime.
The estimated airtime for each skb is stored in the tx_info, so we can
subtract the same amount from the running total when the skb is freed or
recycled. The throttling mechanism relies on this accounting to be
accurate (i.e., that we are not freeing skbs without subtracting any
airtime they were accounted for), so we put the subtraction into
ieee80211_report_used_skb(). As an optimisation, we also subtract the
airtime on regular TX completion, zeroing out the value stored in the
packet afterwards, to avoid having to do an expensive lookup of the station
from the packet data on every packet.
This patch does *not* include any mechanism to wake a throttled TXQ again,
on the assumption that this will happen anyway as a side effect of whatever
freed the skb (most commonly a TX completion).
In order for the Fq_CoDel algorithm integrated in mac80211 layer to operate
effectively to control excessive queueing latency, the CoDel algorithm
requires an accurate measure of how long packets stays in the queue, AKA
sojourn time. The sojourn time measured at the mac80211 layer doesn't
include queueing latency in the lower layer (firmware/hardware) and CoDel
expects lower layer to have a short queue. However, most 802.11ac chipsets
offload tasks such TX aggregation to firmware or hardware, thus have a deep
lower layer queue.
Without a mechanism to control the lower layer queue size, packets only
stay in mac80211 layer transiently before being sent to firmware queue.
As a result, the sojourn time measured by CoDel in the mac80211 layer is
almost always lower than the CoDel latency target, hence CoDel does little
to control the latency, even when the lower layer queue causes excessive
latency.
The Byte Queue Limits (BQL) mechanism is commonly used to address the
similar issue with wired network interface. However, this method cannot be
applied directly to the wireless network interface. "Bytes" is not a
suitable measure of queue depth in the wireless network, as the data rate
can vary dramatically from station to station in the same network, from a
few Mbps to over Gbps.
This patch implements an Airtime-based Queue Limit (AQL) to make CoDel work
effectively with wireless drivers that utilized firmware/hardware
offloading. AQL allows each txq to release just enough packets to the lower
layer to form 1-2 large aggregations to keep hardware fully utilized and
retains the rest of the frames in mac80211 layer to be controlled by the
CoDel algorithm.
mac80211: Import airtime calculation code from mt76
Felix recently added code to calculate airtime of packets to the mt76
driver. Import this into mac80211 so we can use it for airtime queue limit
calculations.
The airtime.c file is copied verbatim from the mt76 driver, and adjusted to
be usable in mac80211. This involves:
- Switching to mac80211 data structures.
- Adding support for 160 MHz channels and HE mode.
- Moving the symbol and duration calculations around a bit to avoid
rounding with the higher rates and longer symbol times used for HE rates.
The per-rate TX rate calculation is also split out to its own function so
it can be used directly for the AQL calculations later.
Taehee Yoo [Thu, 21 Nov 2019 12:26:45 +0000 (12:26 +0000)]
virt_wifi: fix use-after-free in virt_wifi_newlink()
When virt_wifi interface is created, virt_wifi_newlink() is called and
it calls register_netdevice().
if register_netdevice() fails, it internally would call
->priv_destructor(), which is virt_wifi_net_device_destructor() and
it frees netdev. but virt_wifi_newlink() still use netdev.
So, use-after-free would occur in virt_wifi_newlink().
Test commands:
ip link add dummy0 type dummy
modprobe bonding
ip link add bonding_masters link dummy0 type virt_wifi
Splat looks like:
[ 202.220554] BUG: KASAN: use-after-free in virt_wifi_newlink+0x88b/0x9a0 [virt_wifi]
[ 202.221659] Read of size 8 at addr ffff888061629cb8 by task ip/852
Thomas Pedersen [Tue, 19 Nov 2019 05:35:38 +0000 (21:35 -0800)]
mac80211: consider QoS Null frames for STA_NULLFUNC_ACKED
Commit 7b6ddeaf27ec ("mac80211: use QoS NDP for AP probing")
let STAs send QoS Null frames as PS triggers if the AP was
a QoS STA. However, the mac80211 PS stack relies on an
interface flag IEEE80211_STA_NULLFUNC_ACKED for
determining trigger frame ACK, which was not being set for
acked non-QoS Null frames. The effect is an inability to
trigger hardware sleep via IEEE80211_CONF_PS since the QoS
Null frame was seemingly never acked.
This bug only applies to drivers which set both
IEEE80211_HW_REPORTS_TX_ACK_STATUS and
IEEE80211_HW_PS_NULLFUNC_STACK.
Detect the acked QoS Null frame to restore STA power save.
mac80211: Add new sta_info getter by sta/vif addrs
In ieee80211_tx_status() we don't have an sdata struct when looking up the
destination sta. Instead, we just do a lookup by the vif addr that is the
source of the packet being completed. Factor this out into a new sta_info
getter helper, since we need to use it for accounting AQL as well.
Haiyang Zhang [Thu, 21 Nov 2019 21:33:41 +0000 (13:33 -0800)]
hv_netvsc: Fix send_table offset in case of a host bug
If negotiated NVSP version <= NVSP_PROTOCOL_VERSION_6, the offset may
be wrong (too small) due to a host bug. This can cause missing the
end of the send indirection table, and add multiple zero entries from
leading zeros before the data region. This bug adds extra burden on
channel 0.
So fix the offset by computing it from the data structure sizes. This
will ensure netvsc driver runs normally on unfixed hosts, and future
fixed hosts.
Fixes: 5b54dac856cb ("hyperv: Add support for virtual Receive Side Scaling (vRSS)") Signed-off-by: Haiyang Zhang <[email protected]> Signed-off-by: David S. Miller <[email protected]>
Haiyang Zhang [Thu, 21 Nov 2019 21:33:40 +0000 (13:33 -0800)]
hv_netvsc: Fix offset usage in netvsc_send_table()
To reach the data region, the existing code adds offset in struct
nvsp_5_send_indirect_table on the beginning of this struct. But the
offset should be based on the beginning of its container,
struct nvsp_message. This bug causes the first table entry missing,
and adds an extra zero from the zero pad after the data region.
This can put extra burden on the channel 0.
So, correct the offset usage. Also add a boundary check to ensure
not reading beyond data region.
Fixes: 5b54dac856cb ("hyperv: Add support for virtual Receive Side Scaling (vRSS)") Signed-off-by: Haiyang Zhang <[email protected]> Signed-off-by: David S. Miller <[email protected]>
Mao Wenan [Fri, 22 Nov 2019 02:52:40 +0000 (10:52 +0800)]
enetc: make enetc_setup_tc_mqprio static
While using ARCH=mips CROSS_COMPILE=mips-linux-gnu- command to compile,
make C=2 drivers/net/ethernet/freescale/enetc/enetc.o
one warning can be found:
drivers/net/ethernet/freescale/enetc/enetc.c:1439:5:
warning: symbol 'enetc_setup_tc_mqprio' was not declared.
Should it be static?
This patch make symbol enetc_setup_tc_mqprio static. Fixes: 34c6adf1977b ("enetc: Configure the Time-Aware Scheduler via tc-taprio offload") Signed-off-by: Mao Wenan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
Dave Airlie [Fri, 22 Nov 2019 00:23:22 +0000 (10:23 +1000)]
Merge tag 'drm-intel-fixes-2019-11-21' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
- Fix kernel oops on dumb_create ioctl on no crtc situation
- Fix bad ugly colored flash on VLV/CHV related to gamma LUT update
- Fix unity of the frequencies reported on PMU
- Fix kernel oops on set_page_dirty using better locks around it
- Protect the request pointer with RCU to prevent it being freed while we might need still
- Make pool objects read-only
- Restore physical addresses for fb_map to avoid corrupted page table
David S. Miller [Thu, 21 Nov 2019 22:45:55 +0000 (14:45 -0800)]
Merge branch 'net-introduce-and-use-route-hint'
Paolo Abeni says:
====================
net: introduce and use route hint
This series leverages the listification infrastructure to avoid
unnecessary route lookup on ingress packets. In absence of custom rules,
packets with equal daddr will usually land on the same dst.
When processing packet bursts (lists) we can easily reference the previous
dst entry. When we hit the 'same destination' condition we can avoid the
route lookup, coping the already available dst.
Detailed performance numbers are available in the individual commit
messages.
v3 -> v4:
- move helpers to their own patches (Eric D.)
- enable hints for SUBTREE builds (David A.)
- re-enable hints for ipv4 forward (David A.)
v2 -> v3:
- use fib*_has_custom_rules() helpers (David A.)
- add ip*_extract_route_hint() helper (Edward C.)
- use prev skb as hint instead of copying data (Willem )
v1 -> v2:
- fix build issue with !CONFIG_IP*_MULTIPLE_TABLES
- fix potential race in ip6_list_rcv_finish()
====================
Paolo Abeni [Wed, 20 Nov 2019 12:47:37 +0000 (13:47 +0100)]
ipv4: use dst hint for ipv4 list receive
This is alike the previous change, with some additional ipv4 specific
quirk. Even when using the route hint we still have to do perform
additional per packet checks about source address validity: a new
helper is added to wrap them.
Hints are explicitly disabled if the destination is a local broadcast,
that keeps the code simple and local broadcast are a slower path anyway.
UDP flood performances vs recvmmsg() receiver:
vanilla patched delta
Kpps Kpps %
1683 1871 +11
In the worst case scenario - each packet has a different
destination address - the performance delta is within noise
range.
v3 -> v4:
- re-enable hints for forward
v2 -> v3:
- really fix build (sic) and hint usage check
- use fib4_has_custom_rules() helpers (David A.)
- add ip_extract_route_hint() helper (Edward C.)
- use prev skb as hint instead of copying data (Willem)
v1 -> v2:
- fix build issue with !CONFIG_IP_MULTIPLE_TABLES
Paolo Abeni [Wed, 20 Nov 2019 12:47:35 +0000 (13:47 +0100)]
ipv6: introduce and uses route look hints for list input.
When doing RX batch packet processing, we currently always repeat
the route lookup for each ingress packet. When no custom rules are
in place, and there aren't routes depending on source addresses,
we know that packets with the same destination address will use
the same dst.
This change tries to avoid per packet route lookup caching
the destination address of the latest successful lookup, and
reusing it for the next packet when the above conditions are
in place. Ingress traffic for most servers should fit.
The measured performance delta under UDP flood vs a recvmmsg
receiver is as follow:
vanilla patched delta
Kpps Kpps %
1431 1674 +17
In the worst-case scenario - each packet has a different
destination address - the performance delta is within noise
range.
v3 -> v4:
- support hints for SUBFLOW build, too (David A.)
- several style fixes (Eric)
v2 -> v3:
- add fib6_has_custom_rules() helpers (David A.)
- add ip6_extract_route_hint() helper (Edward C.)
- use hint directly in ip6_list_rcv_finish() (Willem)
v1 -> v2:
- fix build issue with !CONFIG_IPV6_MULTIPLE_TABLES
- fix potential race when fib6_has_custom_rules is set
while processing a packet batch
David S. Miller [Thu, 21 Nov 2019 22:39:03 +0000 (14:39 -0800)]
Merge branch 'DSA-Felix-PTP'
Yangbo Lu says:
====================
Support PTP clock and hardware timestamping for DSA Felix driver
This patch-set is to support PTP clock and hardware timestamping
for DSA Felix driver. Some functions in ocelot.c/ocelot_board.c
driver were reworked/exported, so that DSA Felix driver was able
to reuse them as much as possible.
On TX path, timestamping works on packet which requires timestamp.
The injection header will be configured accordingly, and skb clone
requires timestamp will be added into a list. The TX timestamp
is final handled in threaded interrupt handler when PTP timestamp
FIFO is ready.
On RX path, timestamping is always working. The RX timestamp could
be got from extraction header.
====================
Yangbo Lu [Wed, 20 Nov 2019 08:23:18 +0000 (16:23 +0800)]
net: dsa: ocelot: add hardware timestamping support for Felix
This patch is to reuse ocelot functions as possible to enable PTP
clock and to support hardware timestamping on Felix.
On TX path, timestamping works on packet which requires timestamp.
The injection header will be configured accordingly, and skb clone
requires timestamp will be added into a list. The TX timestamp
is final handled in threaded interrupt handler when PTP timestamp
FIFO is ready.
On RX path, timestamping is always working. The RX timestamp could
be got from extraction header.
Yangbo Lu [Wed, 20 Nov 2019 08:23:16 +0000 (16:23 +0800)]
net: mscc: ocelot: convert to use ocelot_port_add_txtstamp_skb()
Convert to use ocelot_port_add_txtstamp_skb() for adding skbs which
require TX timestamp into list. Export it so that DSA Felix driver
could reuse it too.
Yangbo Lu [Wed, 20 Nov 2019 08:23:15 +0000 (16:23 +0800)]
net: mscc: ocelot: convert to use ocelot_get_txtstamp()
The method getting TX timestamp by reading timestamp FIFO and
matching skbs list is common for DSA Felix driver too.
So move code out of ocelot_board.c, convert to use
ocelot_get_txtstamp() function and export it.
Ensure psock dereference on line 792 only occurs if psock is not null.
Reported-by: Dan Carpenter <[email protected]> Fixes: 604326b41a6f ("bpf, sockmap: convert to generic sk_msg interface") Signed-off-by: John Fastabend <[email protected]> Signed-off-by: David S. Miller <[email protected]>
Linus Torvalds [Thu, 21 Nov 2019 20:15:24 +0000 (12:15 -0800)]
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fix from Will Deacon:
"Ensure PAN is re-enabled following user fault in uaccess routines.
After I thought we were done for 5.4, we had a report this week of a
nasty issue that has been shown to leak data between different user
address spaces thanks to corruption of entries in the TLB. In
hindsight, we should have spotted this in review when the PAN code was
merged back in v4.3, but hindsight is 20/20 and I'm trying not to beat
myself up too much about it despite being fairly miserable.
Anyway, the fix is "obvious" but the actual failure is more more
subtle, and is described in the commit message. I've included a fairly
mechanical follow-up patch here as well, which moves this checking out
into the C wrappers which is what we do for {get,put}_user() already
and allows us to remove these bloody assembly macros entirely. The
patches have passed kernelci [1] [2] [3] and CKI [4] tests over night,
as well as some targetted testing [5] for this particular issue.
The first patch is tagged for stable and should be applied to 4.14,
4.19 and 5.3. I have separate backports for 4.4 and 4.9, which I'll
send out once this has landed in your tree (although the original
patch applies cleanly, it won't build for those two trees).
Thanks to Pavel Tatashin for reporting this and Mark Rutland for
helping to diagnose the issue and review/test the solution"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: uaccess: Remove uaccess_*_not_uao asm macros
arm64: uaccess: Ensure PAN is re-enabled after unhandled uaccess fault
Jiri Olsa [Thu, 21 Nov 2019 15:58:53 +0000 (16:58 +0100)]
audit: Move audit_log_task declaration under CONFIG_AUDITSYSCALL
The 0-DAY found that audit_log_task is not declared under
CONFIG_AUDITSYSCALL which causes compilation error when
it is not defined:
kernel/bpf/syscall.o: In function `bpf_audit_prog.isra.30':
>> syscall.c:(.text+0x860): undefined reference to `audit_log_task'
Adding the audit_log_task declaration and stub within
CONFIG_AUDITSYSCALL ifdef.
Fixes: 91e6015b082b ("bpf: Emit audit messages upon successful prog load and unload") Reported-by: kbuild test robot <[email protected]> Signed-off-by: Jiri Olsa <[email protected]> Signed-off-by: David S. Miller <[email protected]>
Martin Habets [Thu, 21 Nov 2019 17:52:15 +0000 (17:52 +0000)]
sfc: Only cancel the PPS workqueue if it exists
The workqueue only exists for the primary PF. For other functions
we hit a WARN_ON in kernel/workqueue.c.
Fixes: 7c236c43b838 ("sfc: Add support for IEEE-1588 PTP") Signed-off-by: Martin Habets <[email protected]> Signed-off-by: David S. Miller <[email protected]>
Linus Torvalds [Thu, 21 Nov 2019 20:01:30 +0000 (12:01 -0800)]
Merge tag 'gpio-v5.4-5' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"A last set of small fixes for GPIO, this cycle was quite busy.
- Fix debounce delays on the MAX77620 GPIO expander
- Use the correct unit for debounce times on the BD70528 GPIO expander
- Get proper deps for parallel builds of the GPIO tools
- Add a specific ACPI quirk for the Terra Pad 1061"
* tag 'gpio-v5.4-5' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpiolib: acpi: Add Terra Pad 1061 to the run_edge_events_on_boot_blacklist
tools: gpio: Correctly add make dependencies for gpio_utils
gpio: bd70528: Use correct unit for debounce times
gpio: max77620: Fixup debounce delays
Adjust indentation from spaces to tab (+optional two spaces) as in
coding style. This fixes various indentation mixups (seven spaces,
tab+one space, etc).
Adjust indentation from spaces to tab (+optional two spaces) as in
coding style. This fixes various indentation mixups (seven spaces,
tab+one space, etc).
Linus Torvalds [Thu, 21 Nov 2019 19:51:49 +0000 (11:51 -0800)]
Merge tag 'for-linus-2019-11-21' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux
Pull pidfd fixlet from Christian Brauner:
"This contains a simple fix for the pidfd poll method. In the original
patchset pidfd_poll() was made to return an unsigned int. However, the
poll method is defined to return a __poll_t. While the unsigned int is
not a huge deal it's just nicer to return a __poll_t.
I've decided to send it right before the 5.4 release mainly so that
stable doesn't need to backport it to both 5.4 and 5.3"
* tag 'for-linus-2019-11-21' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux:
fork: fix pidfd_poll()'s return type
Oliver Neukum [Thu, 21 Nov 2019 10:37:10 +0000 (11:37 +0100)]
nfc: port100: handle command failure cleanly
If starting the transfer of a command suceeds but the transfer for the reply
fails, it is not enough to initiate killing the transfer for the
command may still be running. You need to wait for the killing to finish
before you can reuse URB and buffer.
Xin Long [Thu, 21 Nov 2019 10:11:27 +0000 (18:11 +0800)]
lwtunnel: be STRICT to validate the new LWTUNNEL_IP(6)_OPTS
LWTUNNEL_IP(6)_OPTS are the new items in ip(6)_tun_policy, which
are parsed by nla_parse_nested_deprecated(). We should check it
strictly by setting .strict_start_type = LWTUNNEL_IP(6)_OPTS.
This patch also adds missing LWTUNNEL_IP6_OPTS in ip6_tun_policy.
Fixes: 4ece47787077 ("lwtunnel: add options setting and dumping for geneve") Signed-off-by: Xin Long <[email protected]> Signed-off-by: David S. Miller <[email protected]>
Xin Long [Thu, 21 Nov 2019 10:08:38 +0000 (18:08 +0800)]
net: remove the unnecessary strict_start_type in some policies
ct_policy and mpls_policy are parsed with nla_parse_nested(), which
does NL_VALIDATE_STRICT validation, strict_start_type is not needed
to set as it is actually trying to make some attributes parsed with
NL_VALIDATE_STRICT.
This patch is to remove it, and do the same on rtm_nh_policy which
is parsed by nlmsg_parse().
Xin Long [Thu, 21 Nov 2019 10:03:29 +0000 (18:03 +0800)]
net: sched: allow flower to match erspan options
This patch is to allow matching options in erspan.
The options can be described in the form:
VER:INDEX:DIR:HWID/VER:INDEX_MASK:DIR_MASK:HWID_MASK.
When ver is set to 1, index will be applied while dir
and hwid will be ignored, and when ver is set to 2,
dir and hwid will be used while index will be ignored.
Different from geneve, only one option can be set. And
also, geneve options, vxlan options or erspan options
can't be set at the same time.
# ip link add name erspan1 type erspan external
# tc qdisc add dev erspan1 ingress
# tc filter add dev erspan1 protocol ip parent ffff: \
flower \
enc_src_ip 10.0.99.192 \
enc_dst_ip 10.0.99.193 \
enc_key_id 11 \
erspan_opts 1:12:0:0/1:ffff:0:0 \
ip_proto udp \
action mirred egress redirect dev eth0
Xin Long [Thu, 21 Nov 2019 10:03:28 +0000 (18:03 +0800)]
net: sched: allow flower to match vxlan options
This patch is to allow matching gbp option in vxlan.
The options can be described in the form GBP/GBP_MASK,
where GBP is represented as a 32bit hexadecimal value.
Different from geneve, only one option can be set. And
also, geneve options and vxlan options can't be set at
the same time.
# ip link add name vxlan0 type vxlan dstport 0 external
# tc qdisc add dev vxlan0 ingress
# tc filter add dev vxlan0 protocol ip parent ffff: \
flower \
enc_src_ip 10.0.99.192 \
enc_dst_ip 10.0.99.193 \
enc_key_id 11 \
vxlan_opts 01020304/ffffffff \
ip_proto udp \
action mirred egress redirect dev eth0
v1->v2:
- add .strict_start_type for enc_opts_policy as Jakub noticed.
- use Duplicate instead of Wrong in err msg for extack as Jakub
suggested.
Xin Long [Thu, 21 Nov 2019 10:03:27 +0000 (18:03 +0800)]
net: sched: add erspan option support to act_tunnel_key
This patch is to allow setting erspan options using the
act_tunnel_key action. Different from geneve options,
only one option can be set. And also, geneve options,
vxlan options or erspan options can't be set at the
same time.
Options are expressed as ver:index:dir:hwid, when ver
is set to 1, index will be applied while dir and hwid
will be ignored, and when ver is set to 2, dir and
hwid will be used while index will be ignored.
# ip link add name erspan1 type erspan external
# tc qdisc add dev eth0 ingress
# tc filter add dev eth0 protocol ip parent ffff: \
flower indev eth0 \
ip_proto udp \
action tunnel_key \
set src_ip 10.0.99.192 \
dst_ip 10.0.99.193 \
dst_port 6081 \
id 11 \
erspan_opts 1:2:0:0 \
action mirred egress redirect dev erspan1
v1->v2:
- do the validation when dst is not yet allocated as Jakub suggested.
- use Duplicate instead of Wrong in err msg for extack.
Xin Long [Thu, 21 Nov 2019 10:03:26 +0000 (18:03 +0800)]
net: sched: add vxlan option support to act_tunnel_key
This patch is to allow setting vxlan options using the
act_tunnel_key action. Different from geneve options,
only one option can be set. And also, geneve options
and vxlan options can't be set at the same time.
gbp is the only param for vxlan options:
# ip link add name vxlan0 type vxlan dstport 0 external
# tc qdisc add dev eth0 ingress
# tc filter add dev eth0 protocol ip parent ffff: \
flower indev eth0 \
ip_proto udp \
action tunnel_key \
set src_ip 10.0.99.192 \
dst_ip 10.0.99.193 \
dst_port 6081 \
id 11 \
vxlan_opts 01020304 \
action mirred egress redirect dev vxlan0
v1->v2:
- add .strict_start_type for enc_opts_policy as Jakub noticed.
- use Duplicate instead of Wrong in err msg for extack as Jakub
suggested.
Dan Carpenter [Thu, 21 Nov 2019 09:21:46 +0000 (12:21 +0300)]
octeontx2-af: Fix uninitialized variable in debugfs
If rvu_get_blkaddr() fails, then this rvu_cgx_nix_cuml_stats() returns
zero and we write some uninitialized data into the debugfs output.
On the error paths, the use of the uninitialized "*stat" is harmless,
but it will lead to a Smatch warning (static analysis) and a UBSan
warning (runtime analysis) so we should prevent that as well.
Fixes: f967488d095e ("octeontx2-af: Add per CGX port level NIX Rx/Tx counters") Signed-off-by: Dan Carpenter <[email protected]> Signed-off-by: David S. Miller <[email protected]>
vsock: avoid to assign transport if its initialization fails
If transport->init() fails, we can't assign the transport to the
socket, because it's not initialized correctly, and any future
calls to the transport callbacks would have an unexpected behavior.
Chris Wilson [Wed, 13 Nov 2019 18:06:33 +0000 (18:06 +0000)]
drm/i915/fbdev: Restore physical addresses for fb_mmap()
fbdev uses the physical address of our framebuffer for its fb_mmap()
routine. While we need to adapt this address for the new io BAR, we have
to fix v5.4 first! The simplest fix is to restore the smem back to v5.3
and we will then probably have to implement our fbops->fb_mmap() callback
to handle local memory.
Russell King [Wed, 20 Nov 2019 12:29:59 +0000 (12:29 +0000)]
net: sfp: soft status and control support
Add support for the soft status and control register, which allows
TX_FAULT and RX_LOS to be monitored and TX_DISABLE to be set. We
make use of this when the board does not support GPIOs for these
signals.
David S. Miller [Thu, 21 Nov 2019 06:28:53 +0000 (22:28 -0800)]
Merge branch 'sfp-quirks'
Russell King says:
====================
Add rudimentary SFP module quirk support
The SFP module EEPROM describes the capabilities of the module, but
doesn't describe the host interface. We have a certain amount of
guess-work to work out how to configure the host - which works most
of the time.
However, there are some (such as GPON) modules which are able to
support different host interfaces, such as 1000BASE-X and 2500BASE-X.
The module will switch between each mode until it achieves link with
the host.
There is no defined way to describe this in the SFP EEPROM, so we can
only recognise the module and handle it appropriately. This series
adds the necessary recognition of the modules using a quirk system,
and tweaks the support mask to allow them to link with the host at
2500BASE-X, thereby allowing the user to achieve full line rate.
====================
Russell King [Wed, 20 Nov 2019 11:42:47 +0000 (11:42 +0000)]
net: sfp: add some quirks for GPON modules
Marc Micalizzi reports that Huawei MA5671A and Alcatel/Lucent G-010S-P
modules are capable of 2500base-X, but incorrectly report their
capabilities in the EEPROM. It seems rather common that GPON modules
mis-report.
Hangbin Liu [Wed, 20 Nov 2019 08:38:08 +0000 (16:38 +0800)]
tcp: warn if offset reach the maxlen limit when using snprintf
snprintf returns the number of chars that would be written, not number
of chars that were actually written. As such, 'offs' may get larger than
'tbl.maxlen', causing the 'tbl.maxlen - offs' being < 0, and since the
parameter is size_t, it would overflow.
Since using scnprintf may hide the limit error, while the buffer is still
enough now, let's just add a WARN_ON_ONCE in case it reach the limit
in future.
wenxu [Wed, 20 Nov 2019 02:59:39 +0000 (10:59 +0800)]
ip_gre: Make none-tun-dst gre tunnel store tunnel info as metadat_dst in recv
Currently collect_md gre tunnel will store the tunnel info(metadata_dst)
to skb_dst.
And now the non-tun-dst gre tunnel already can add tunnel header through
lwtunnel.
When received a arp_request on the non-tun-dst gre tunnel. The packet of
arp response will send through the non-tun-dst tunnel without tunnel info
which will lead the arp response packet to be dropped.
If the non-tun-dst gre tunnel also store the tunnel info as metadata_dst,
The arp response packet will set the releted tunnel info in the
iptunnel_metadata_reply.
The following is the test script:
ip netns add cl
ip l add dev vethc type veth peer name eth0 netns cl
ifconfig vethc 172.168.0.7/24 up
ip l add dev tun1000 type gretap key 1000
ip link add user1000 type vrf table 1
ip l set user1000 up
ip l set dev tun1000 master user1000
ifconfig tun1000 10.0.1.1/24 up
ip netns exec cl ifconfig eth0 172.168.0.17/24 up
ip netns exec cl ip l add dev tun type gretap local 172.168.0.17 remote 172.168.0.7 key 1000
ip netns exec cl ifconfig tun 10.0.1.7/24 up
ip r r 10.0.1.7 encap ip id 1000 dst 172.168.0.17 key dev tun1000 table 1
With this patch
ip netns exec cl ping 10.0.1.1 can success
kobject_put() should only be called in error path.
Fixes: b8eb718348b8 ("net-sysfs: Fix reference count leak in rx|netdev_queue_add_kobject") Signed-off-by: Eric Dumazet <[email protected]> Cc: Jouni Hogander <[email protected]> Signed-off-by: David S. Miller <[email protected]>
Dave Airlie [Thu, 21 Nov 2019 05:07:35 +0000 (15:07 +1000)]
Merge tag 'drm-fixes-5.4-2019-11-20' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
drm-fixes-5.4-2019-11-20:
amdgpu:
- Remove experimental flag for navi14
- Fix confusing power message failures on older VI parts
- Hang fix for gfxoff when using the read register interface
- Two stability regression fixes for Raven
<<<<<<< HEAD
void *bpf_map_area_alloc(u64 size, int numa_node)
=======
static void *__bpf_map_area_alloc(u64 size, int numa_node, bool mmapable)
>>>>>>> 196e8ca74886c433dcfc64a809707074b936aaf5
<<<<<<< HEAD
if (size <= (PAGE_SIZE << PAGE_ALLOC_COSTLY_ORDER)) {
=======
/* kmalloc()'ed memory can't be mmap()'ed */
if (!mmapable && size <= (PAGE_SIZE << PAGE_ALLOC_COSTLY_ORDER)) {
>>>>>>> 196e8ca74886c433dcfc64a809707074b936aaf5
The main changes are:
1) Addition of BPF trampoline which works as a bridge between kernel functions,
BPF programs and other BPF programs along with two new use cases: i) fentry/fexit
BPF programs for tracing with practically zero overhead to call into BPF (as
opposed to k[ret]probes) and ii) attachment of the former to networking related
programs to see input/output of networking programs (covering xdpdump use case),
from Alexei Starovoitov.
2) BPF array map mmap support and use in libbpf for global data maps; also a big
batch of libbpf improvements, among others, support for reading bitfields in a
relocatable manner (via libbpf's CO-RE helper API), from Andrii Nakryiko.
3) Extend s390x JIT with usage of relative long jumps and loads in order to lift
the current 64/512k size limits on JITed BPF programs there, from Ilya Leoshkevich.
4) Add BPF audit support and emit messages upon successful prog load and unload in
order to have a timeline of events, from Daniel Borkmann and Jiri Olsa.
5) Extension to libbpf and xdpsock sample programs to demo the shared umem mode
(XDP_SHARED_UMEM) as well as RX-only and TX-only sockets, from Magnus Karlsson.
6) Several follow-up bug fixes for libbpf's auto-pinning code and a new API
call named bpf_get_link_xdp_info() for retrieving the full set of prog
IDs attached to XDP, from Toke Høiland-Jørgensen.
7) Add BTF support for array of int, array of struct and multidimensional arrays
and enable it for skb->cb[] access in kfree_skb test, from Martin KaFai Lau.
8) Fix AF_XDP by using the correct number of channels from ethtool, from Luigi Rizzo.
9) Two fixes for BPF selftest to get rid of a hang in test_tc_tunnel and to avoid
xdping to be run as standalone, from Jiri Benc.
10) Various BPF selftest fixes when run with latest LLVM trunk, from Yonghong Song.
11) Fix a memory leak in BPF fentry test run data, from Colin Ian King.
12) Various smaller misc cleanups and improvements mostly all over BPF selftests and
samples, from Daniel T. Lee, Andre Guedes, Anders Roxell, Mao Wenan, Yue Haibing.
====================
Evan Quan [Thu, 14 Nov 2019 08:58:31 +0000 (16:58 +0800)]
drm/amd/powerplay: correct fine grained dpm force level setting
For fine grained dpm, there is only two levels supported. However
to reflect correctly the current clock frequency, there is an
intermediate level faked. Thus on forcing level setting, we
need to treat level 2 correctly as level 1.
Daniel Borkmann [Wed, 20 Nov 2019 22:04:44 +0000 (23:04 +0100)]
bpf: Switch bpf_map_{area_alloc,area_mmapable_alloc}() to u64 size
Given we recently extended the original bpf_map_area_alloc() helper in
commit fc9702273e2e ("bpf: Add mmap() support for BPF_MAP_TYPE_ARRAY"),
we need to apply the same logic as in ff1c08e1f74b ("bpf: Change size
to u64 for bpf_map_{area_alloc, charge_init}()"). To avoid conflicts,
extend it for bpf-next.
Daniel Borkmann [Wed, 20 Nov 2019 21:38:16 +0000 (22:38 +0100)]
bpf: Emit audit messages upon successful prog load and unload
Allow for audit messages to be emitted upon BPF program load and
unload for having a timeline of events. The load itself is in
syscall context, so additional info about the process initiating
the BPF prog creation can be logged and later directly correlated
to the unload event.
The only info really needed from BPF side is the globally unique
prog ID where then audit user space tooling can query / dump all
info needed about the specific BPF program right upon load event
and enrich the record, thus these changes needed here can be kept
small and non-intrusive to the core.
For -stable v4.19
('net/mlx5: Fix auto group size calculation')
For -stable v5.3
('net/mlx5e: Fix error flow cleanup in mlx5e_tc_tun_create_header_ipv4/6')
('net/mlx5e: Do not use non-EXT link modes in EXT mode')
('net/mlx5: Update the list of the PCI supported devices')
====================
Heiner Kallweit [Wed, 20 Nov 2019 20:08:47 +0000 (21:08 +0100)]
r8169: add check for PHY_MDIO_CHG to rtl_nic_fw_data_ok
Only values 0 and 1 are currently defined as parameters for
PHY_MDIO_CHG. Instead of silently ignoring unknown values and
misinterpreting the firmware code let's explicitly check.
Prashant Malani [Wed, 20 Nov 2019 19:40:21 +0000 (11:40 -0800)]
r8152: Re-order napi_disable in rtl8152_close
Both rtl_work_func_t() and rtl8152_close() call napi_disable().
Since the two calls aren't protected by a lock, if the close
function starts executing before the work function, we can get into a
situation where the napi_disable() function is called twice in
succession (first by rtl8152_close(), then by set_carrier()).
In such a situation, the second call would loop indefinitely, since
rtl8152_close() doesn't call napi_enable() to clear the NAPI_STATE_SCHED
bit.
The rtl8152_close() function in turn issues a
cancel_delayed_work_sync(), and so it would wait indefinitely for the
rtl_work_func_t() to complete. Since rtl8152_close() is called by a
process holding rtnl_lock() which is requested by other processes, this
eventually leads to a system deadlock and crash.
Re-order the napi_disable() call to occur after the work function
disabling and urb cancellation calls are issued.
Change-Id: I6ef0b703fc214998a037a68f722f784e1d07815e Reported-by: http://crbug.com/1017928 Signed-off-by: Prashant Malani <[email protected]> Signed-off-by: David S. Miller <[email protected]>
Stefan Wahren [Wed, 20 Nov 2019 17:29:13 +0000 (18:29 +0100)]
net: qca_spi: Move reset_count to struct qcaspi
The reset counter is specific for every QCA700x chip. So move this
into the private driver struct. Otherwise we get unpredictable reset
behavior in setups with multiple QCA700x chips.
Fixes: 291ab06ecf67 (net: qualcomm: new Ethernet over SPI driver for QCA7000) Signed-off-by: Stefan Wahren <[email protected]> Signed-off-by: Stefan Wahren <[email protected]> Signed-off-by: David S. Miller <[email protected]>
Michael Heimpold [Wed, 20 Nov 2019 17:29:12 +0000 (18:29 +0100)]
net: qca_spi: fix receive buffer size check
When receiving many or larger packets, e.g. when doing a file download,
it was observed that the read buffer size register reports up to 4 bytes
more than the current define allows in the check.
If this is the case, then no data transfer is initiated to receive the
packets (and thus to empty the buffer) which results in a stall of the
interface.
These 4 bytes are a hardware generated frame length which is prepended
to the actual frame, thus we have to respect it during our check.
Fixes: 026b907d58c4 ("net: qca_spi: Add available buffer space verification") Signed-off-by: Michael Heimpold <[email protected]> Signed-off-by: Stefan Wahren <[email protected]> Signed-off-by: David S. Miller <[email protected]>
If network device drives are using deferred probing, it was possible
that waiting for devices to show up in ipconfig was already over,
when the device eventually showed up. By calling wait_for_device_probe()
we now make sure deferred probing is done before checking for available
devices.
Mao Wenan [Wed, 20 Nov 2019 15:56:34 +0000 (16:56 +0100)]
vsock/vmci: make vmci_vsock_cb_host_called static
When using make C=2 drivers/misc/vmw_vmci/vmci_driver.o
to compile, below warning can be seen:
drivers/misc/vmw_vmci/vmci_driver.c:33:6: warning:
symbol 'vmci_vsock_cb_host_called' was not declared. Should it be static?
This patch make symbol vmci_vsock_cb_host_called static.
Fixes: b1bba80a4376 ("vsock/vmci: register vmci_transport only when VMCI guest/host are active") Reported-by: Hulk Robot <[email protected]> Signed-off-by: Mao Wenan <[email protected]> Reported-by: kbuild test robot <[email protected]> Signed-off-by: Stefano Garzarella <[email protected]> Signed-off-by: David S. Miller <[email protected]>
Juliet Kim [Wed, 20 Nov 2019 15:50:04 +0000 (10:50 -0500)]
net/ibmvnic: Ignore H_FUNCTION return from H_EOI to tolerate XIVE mode
Reversion of commit 11d49ce9f7946dfed4dcf5dbde865c78058b50ab
(“net/ibmvnic: Fix EOI when running in XIVE mode.”) leaves us
calling H_EOI even in XIVE mode. That will fail with H_FUNCTION
because H_EOI is not supported in that mode. That failure is
harmless. Ignore it so we can use common code for both XICS and
XIVE.
Juliet Kim [Wed, 20 Nov 2019 15:50:03 +0000 (10:50 -0500)]
Revert "net/ibmvnic: Fix EOI when running in XIVE mode"
This reverts commit 11d49ce9f7946dfed4dcf5dbde865c78058b50ab
(“net/ibmvnic: Fix EOI when running in XIVE mode.”) since that
has the unintended effect of changing the interrupt priority
and emits warning when running in legacy XICS mode.
David S. Miller [Wed, 20 Nov 2019 20:34:37 +0000 (12:34 -0800)]
Merge branch 'page_pool-DMA-sync'
Lorenzo Bianconi says:
====================
add DMA-sync-for-device capability to page_pool API
Introduce the possibility to sync DMA memory for device in the page_pool API.
This feature allows to sync proper DMA size and not always full buffer
(dma_sync_single_for_device can be very costly).
Please note DMA-sync-for-CPU is still device driver responsibility.
Relying on page_pool DMA sync mvneta driver improves XDP_DROP pps of
about 170Kpps:
- XDP_DROP DMA sync managed by mvneta driver: ~420Kpps
- XDP_DROP DMA sync managed by page_pool API: ~585Kpps
Do not change naming convention for the moment since the changes will hit other
drivers as well. I will address it in another series.
Changes since v4:
- do not allow the driver to set max_len to 0
- convert PP_FLAG_DMA_MAP/PP_FLAG_DMA_SYNC_DEV to BIT() macro
Changes since v3:
- move dma_sync_for_device before putting the page in ptr_ring in
__page_pool_recycle_into_ring since ptr_ring can be consumed
concurrently. Simplify the code moving dma_sync_for_device
before running __page_pool_recycle_direct/__page_pool_recycle_into_ring
Changes since v2:
- rely on PP_FLAG_DMA_SYNC_DEV flag instead of dma_sync
Changes since v1:
- rename sync in dma_sync
- set dma_sync_size to 0xFFFFFFFF in page_pool_recycle_direct and
page_pool_put_page routines
- Improve documentation
====================
Lorenzo Bianconi [Wed, 20 Nov 2019 14:54:19 +0000 (16:54 +0200)]
net: mvneta: get rid of huge dma sync in mvneta_rx_refill
Get rid of costly dma_sync_single_for_device in mvneta_rx_refill
since now the driver can let page_pool API to manage needed DMA
sync with a proper size.
- XDP_DROP DMA sync managed by mvneta driver: ~420Kpps
- XDP_DROP DMA sync managed by page_pool API: ~585Kpps
Lorenzo Bianconi [Wed, 20 Nov 2019 14:54:18 +0000 (16:54 +0200)]
net: page_pool: add the possibility to sync DMA memory for device
Introduce the following parameters in order to add the possibility to sync
DMA memory for device before putting allocated pages in the page_pool
caches:
- PP_FLAG_DMA_SYNC_DEV: if set in page_pool_params flags, all pages that
the driver gets from page_pool will be DMA-synced-for-device according
to the length provided by the device driver. Please note DMA-sync-for-CPU
is still device driver responsibility
- offset: DMA address offset where the DMA engine starts copying rx data
- max_len: maximum DMA memory size page_pool is allowed to flush. This
is currently used in __page_pool_alloc_pages_slow routine when pages
are allocated from page allocator
These parameters are supposed to be set by device drivers.
This optimization reduces the length of the DMA-sync-for-device.
The optimization is valid because pages are initially
DMA-synced-for-device as defined via max_len. At RX time, the driver
will perform a DMA-sync-for-CPU on the memory for the packet length.
What is important is the memory occupied by packet payload, because
this is the area CPU is allowed to read and modify. As we don't track
cache-lines written into by the CPU, simply use the packet payload length
as dma_sync_size at page_pool recycle time. This also take into account
any tail-extend.
Lorenzo Bianconi [Wed, 20 Nov 2019 14:54:17 +0000 (16:54 +0200)]
net: mvneta: rely on page_pool_recycle_direct in mvneta_run_xdp
Rely on page_pool_recycle_direct and not on xdp_return_buff in
mvneta_run_xdp. This is a preliminary patch to limit the dma sync len
to the one strictly necessary
Array mlxfw_fsm_state_err_str contains value to string translation, when
values are provided by mlxfw_dev. If value is larger than
MLXFW_FSM_STATE_ERR_MAX, return "unknown error" as expected instead of
reading an address than exceed array size.
Fixes: 410ed13cae39 ("Add the mlxfw module for Mellanox firmware flash process") Signed-off-by: Eran Ben Elisha <[email protected]> Acked-by: Jiri Pirko <[email protected]> Signed-off-by: Saeed Mahameed <[email protected]>
Shani Shapp [Tue, 12 Nov 2019 13:10:00 +0000 (15:10 +0200)]
net/mlx5: Update the list of the PCI supported devices
Add the upcoming ConnectX-6 LX device ID.
Fixes: 85327a9c4150 ("net/mlx5: Update the list of the PCI supported devices") Signed-off-by: Shani Shapp <[email protected]> Reviewed-by: Eran Ben Elisha <[email protected]> Signed-off-by: Saeed Mahameed <[email protected]>
Maor Gottlieb [Thu, 5 Sep 2019 06:56:10 +0000 (09:56 +0300)]
net/mlx5: Fix auto group size calculation
Once all the large flow groups (defined by the user when the flow table
is created - max_num_groups) were created, then all the following new
flow groups will have only one flow table entry, even though the flow table
has place to larger groups.
Fix the condition to prefer large flow group.
Marina Varshaver [Tue, 19 Nov 2019 16:52:13 +0000 (18:52 +0200)]
net/mlx5e: Add missing capability bit check for IP-in-IP
Device that doesn't support IP-in-IP offloads has to filter csum and gso
offload support, otherwise kernel will conclude that device is capable of
offloading csum and gso for IP-in-IP tunnels and that might result in
IP-in-IP tunnel not functioning.
Fixes: 25948b87dda2 ("net/mlx5e: Support TSO and TX checksum offloads for IP-in-IP") Signed-off-by: Marina Varshaver <[email protected]> Signed-off-by: Saeed Mahameed <[email protected]>
Eran Ben Elisha [Sun, 17 Nov 2019 13:17:05 +0000 (15:17 +0200)]
net/mlx5e: Do not use non-EXT link modes in EXT mode
On some old Firmwares, connector type value was not supported, and value
read from FW was 0. For those, driver used link mode in order to set
connector type in link_ksetting.
After FW exposed the connector type, driver translated the value to ethtool
definitions. However, as 0 is a valid value, before returning PORT_OTHER,
driver run the check of link mode in order to maintain backward
compatibility.
Cited patch added support to EXT mode. With both features (connector type
and EXT link modes) ,if connector_type read from FW is 0 and EXT mode is
set, driver mistakenly compare EXT link modes to non-EXT link mode.
Fixed that by skipping this comparison if we are in EXT mode, as connector
type value is valid in this scenario.
Fixes: 6a897372417e ("net/mlx5: ethtool, Add ethtool support for 50Gbps per lane link modes") Signed-off-by: Eran Ben Elisha <[email protected]> Reviewed-by: Aya Levin <[email protected]> Signed-off-by: Saeed Mahameed <[email protected]>
Alex Vesker [Sun, 10 Nov 2019 13:39:36 +0000 (15:39 +0200)]
net/mlx5: DR, Limit STE hash table enlarge based on bytemask
When an ste hash table has too many collision we enlarge it
to a bigger hash table (rehash). Rehashing collision improvement
depends on the bytemask value. The more 1 bits we have in bytemask
means better spreading in the table.
Without this fix tables can grow in size without providing any
improvement which can lead to memory depletion and failures.
This patch will limit table rehash to reduce memory and improve
the performance.
projects / linux.git / log