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Using the syzkaller repro with reduced packet size it was discovered
that XDP_PACKET_HEADROOM is not checked in tun_can_build_skb(),
although pad may be incremented in tun_build_skb(). This may end up
with exceeding the PAGE_SIZE limit in tun_build_skb().
Jason Wang <jasowang@redhat.com> proposed to count XDP_PACKET_HEADROOM
always (e.g. without rcu_access_pointer(tun->xdp_prog)) in
tun_can_build_skb() since there's a window during which XDP program
might be attached between tun_can_build_skb() and tun_build_skb().
Fixes: 7df13219d757 ("tun: reserve extra headroom only when XDP is set")
Link: https://syzkaller.appspot.com/bug?extid=f817490f5bd20541b90a
Signed-off-by: Andrew Kanner <andrew.kanner@gmail.com>
Link: https://lore.kernel.org/r/20230803185947.2379988-1-andrew.kanner@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen netback buffer overflow fix from Juergen Gross:
"The fix for XSA-423 added logic to Linux'es netback driver to deal
with a frontend splitting a packet in a way such that not all of the
headers would come in one piece.
Unfortunately the logic introduced there didn't account for the
extreme case of the entire packet being split into as many pieces as
permitted by the protocol, yet still being smaller than the area
that's specially dealt with to keep all (possible) headers together.
Such an unusual packet would therefore trigger a buffer overrun in the
driver"
* tag 'xsa432-6.5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/netback: Fix buffer overrun triggered by unusual packet
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86/gds fixes from Dave Hansen:
"Mitigate Gather Data Sampling issue:
- Add Base GDS mitigation
- Support GDS_NO under KVM
- Fix a documentation typo"
* tag 'gds-for-linus-2023-08-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
Documentation/x86: Fix backwards on/off logic about YMM support
KVM: Add GDS_NO support to KVM
x86/speculation: Add Kconfig option for GDS
x86/speculation: Add force option to GDS mitigation
x86/speculation: Add Gather Data Sampling mitigation
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Jiri Olsa says:
====================
adding support for bpf_get_func_ip helper for uprobe program to return
probed address for both uprobe and return uprobe as suggested by Andrii
in [1].
We agreed that uprobe can have special use of bpf_get_func_ip helper
that differs from kprobe.
The kprobe bpf_get_func_ip returns:
- address of the function if probe is attach on function entry
for both kprobe and return kprobe
- 0 if the probe is not attach on function entry
The uprobe bpf_get_func_ip returns:
- address of the probe for both uprobe and return uprobe
The reason for this semantic change is that kernel can't really tell
if the probe user space address is function entry.
v3 changes:
- removed bpf_get_func_ip_uprobe helper function [Yonghong]
Also available at:
https://git.kernel.org/pub/scm/linux/kernel/git/jolsa/perf.git
uprobe_get_func_ip
[1] https://lore.kernel.org/bpf/CAEf4BzZ=xLVkG5eurEuvLU79wAMtwho7ReR+XJAgwhFF4M-7Cg@mail.gmail.com/
====================
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
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Adding get_func_ip test for uprobe inside function that validates
the get_func_ip helper returns correct probe address value.
Tested-by: Alan Maguire <alan.maguire@oracle.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20230807085956.2344866-4-jolsa@kernel.org
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
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Adding get_func_ip tests for uprobe on function entry that
validates that bpf_get_func_ip returns proper values from
both uprobe and return uprobe.
Tested-by: Alan Maguire <alan.maguire@oracle.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20230807085956.2344866-3-jolsa@kernel.org
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
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Adding support for bpf_get_func_ip helper for uprobe program to return
probed address for both uprobe and return uprobe.
We discussed this in [1] and agreed that uprobe can have special use
of bpf_get_func_ip helper that differs from kprobe.
The kprobe bpf_get_func_ip returns:
- address of the function if probe is attach on function entry
for both kprobe and return kprobe
- 0 if the probe is not attach on function entry
The uprobe bpf_get_func_ip returns:
- address of the probe for both uprobe and return uprobe
The reason for this semantic change is that kernel can't really tell
if the probe user space address is function entry.
The uprobe program is actually kprobe type program attached as uprobe.
One of the consequences of this design is that uprobes do not have its
own set of helpers, but share them with kprobes.
As we need different functionality for bpf_get_func_ip helper for uprobe,
I'm adding the bool value to the bpf_trace_run_ctx, so the helper can
detect that it's executed in uprobe context and call specific code.
The is_uprobe bool is set as true in bpf_prog_run_array_sleepable, which
is currently used only for executing bpf programs in uprobe.
Renaming bpf_prog_run_array_sleepable to bpf_prog_run_array_uprobe
to address that it's only used for uprobes and that it sets the
run_ctx.is_uprobe as suggested by Yafang Shao.
Suggested-by: Andrii Nakryiko <andrii@kernel.org>
Tested-by: Alan Maguire <alan.maguire@oracle.com>
[1] https://lore.kernel.org/bpf/CAEf4BzZ=xLVkG5eurEuvLU79wAMtwho7ReR+XJAgwhFF4M-7Cg@mail.gmail.com/
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Tested-by: Viktor Malik <vmalik@redhat.com>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20230807085956.2344866-2-jolsa@kernel.org
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86/srso fixes from Borislav Petkov:
"Add a mitigation for the speculative RAS (Return Address Stack)
overflow vulnerability on AMD processors.
In short, this is yet another issue where userspace poisons a
microarchitectural structure which can then be used to leak privileged
information through a side channel"
* tag 'x86_bugs_srso' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/srso: Tie SBPB bit setting to microcode patch detection
x86/srso: Add a forgotten NOENDBR annotation
x86/srso: Fix return thunks in generated code
x86/srso: Add IBPB on VMEXIT
x86/srso: Add IBPB
x86/srso: Add SRSO_NO support
x86/srso: Add IBPB_BRTYPE support
x86/srso: Add a Speculative RAS Overflow mitigation
x86/bugs: Increase the x86 bugs vector size to two u32s
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A movsx selftest is added for sign-extension of frame pointer R10.
The verification fails for both privileged and unprivileged
prog runs.
Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/20230807175726.672394-1-yonghong.song@linux.dev
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
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syzbot reports a verifier bug which triggers a runtime panic.
The test bpf program is:
0: (62) *(u32 *)(r10 -8) = 553656332
1: (bf) r1 = (s16)r10
2: (07) r1 += -8
3: (b7) r2 = 3
4: (bd) if r2 <= r1 goto pc+0
5: (85) call bpf_trace_printk#-138320
6: (b7) r0 = 0
7: (95) exit
At insn 1, the current implementation keeps 'r1' as a frame pointer,
which caused later bpf_trace_printk helper call crash since frame
pointer address is not valid any more. Note that at insn 4,
the 'pointer vs. scalar' comparison is allowed for privileged
prog run.
To fix the problem with above insn 1, the fix in the patch adopts
similar pattern to existing 'R1 = (u32) R2' handling. For unprivileged
prog run, verification will fail with 'R<num> sign-extension part of pointer'.
For privileged prog run, the dst_reg 'r1' will be marked as
an unknown scalar, so later 'bpf_trace_pointk' helper will complain
since it expected certain pointers.
Reported-by: syzbot+d61b595e9205573133b3@syzkaller.appspotmail.com
Fixes: 8100928c8814 ("bpf: Support new sign-extension mov insns")
Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20230807175721.671696-1-yonghong.song@linux.dev
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
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Give a single place where the shorthand for types are defined and the
semantics of helper functions are described.
Signed-off-by: Will Hawkins <hawkinsw@obs.cr>
Acked-by: David Vernet <void@manifault.com>
Link: https://lore.kernel.org/r/20230807140651.122484-1-hawkinsw@obs.cr
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue fixes from Tejun Heo:
- The recently added cpu_intensive auto detection and warning mechanism
was spuriously triggered on slow CPUs.
While not causing serious issues, it's still a nuisance and can cause
unintended concurrency management behaviors.
Relax the threshold on machines with lower BogoMIPS. While BogoMIPS
is not an accurate measure of performance by most measures, we don't
have to be accurate and it has rough but strong enough correlation.
- A correction in Kconfig help text
* tag 'wq-for-6.5-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: Scale up wq_cpu_intensive_thresh_us if BogoMIPS is below 4000
workqueue: Fix cpu_intensive_thresh_us name in help text
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Alexander Lobakin says:
====================
page_pool: a couple of assorted optimizations
That initially was a spin-off of the IAVF PP series[0], but has grown
(and shrunk) since then a bunch. In fact, it consists of three
semi-independent blocks:
* #1-2: Compile-time optimization. Split page_pool.h into 2 headers to
not overbloat the consumers not needing complex inline helpers and
then stop including it in skbuff.h at all. The first patch is also
prereq for the whole series.
* #3: Improve cacheline locality for users of the Page Pool frag API.
* #4-6: Use direct cache recycling more aggressively, when it is safe
obviously. In addition, make sure nobody wants to use Page Pool API
with disabled interrupts.
Patches #1 and #5 are authored by Yunsheng and Jakub respectively, with
small modifications from my side as per ML discussions.
For the perf numbers for #3-6, please see individual commit messages.
Also available on my GH with many more Page Pool goodies[1].
[0] https://lore.kernel.org/netdev/20230530150035.1943669-1-aleksander.lobakin@intel.com
[1] https://github.com/alobakin/linux/commits/iavf-pp-frag
====================
Link: https://lore.kernel.org/r/20230804180529.2483231-1-aleksander.lobakin@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Commit 8c48eea3adf3 ("page_pool: allow caching from safely localized
NAPI") allowed direct recycling of skb pages to their PP for some cases,
but unfortunately missed a couple of other majors.
For example, %XDP_DROP in skb mode. The netstack just calls kfree_skb(),
which unconditionally passes `false` as @napi_safe. Thus, all pages go
through ptr_ring and locks, although most of time we're actually inside
the NAPI polling this PP is linked with, so that it would be perfectly
safe to recycle pages directly.
Let's address such. If @napi_safe is true, we're fine, don't change
anything for this path. But if it's false, check whether we are in the
softirq context. It will most likely be so and then if ->list_owner
is our current CPU, we're good to use direct recycling, even though
@napi_safe is false -- concurrent access is excluded. in_softirq()
protection is needed mostly due to we can hit this place in the
process context (not the hardirq though).
For the mentioned xdp-drop-skb-mode case, the improvement I got is
3-4% in Mpps. As for page_pool stats, recycle_ring is now 0 and
alloc_slow counter doesn't change most of time, which means the
MM layer is not even called to allocate any new pages.
Suggested-by: Jakub Kicinski <kuba@kernel.org> # in_softirq()
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://lore.kernel.org/r/20230804180529.2483231-7-aleksander.lobakin@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Page pool use in hardirq is prohibited, add debug checks
to catch misuses. IIRC we previously discussed using
DEBUG_NET_WARN_ON_ONCE() for this, but there were concerns
that people will have DEBUG_NET enabled in perf testing.
I don't think anyone enables lockdep in perf testing,
so use lockdep to avoid pushback and arguing :)
Acked-by: Jesper Dangaard Brouer <hawk@kernel.org>
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://lore.kernel.org/r/20230804180529.2483231-6-aleksander.lobakin@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Currently, pp->p.napi is always read, but the actual variable it gets
assigned to is read-only when @napi_safe is true. For the !napi_safe
cases, which yet is still a pack, it's an unneeded operation.
Moreover, it can lead to premature or even redundant page_pool
cacheline access. For example, when page_pool_is_last_frag() returns
false (with the recent frag improvements).
Thus, read it only when @napi_safe is true. This also allows moving
@napi inside the condition block itself. Constify it while we are
here, because why not.
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://lore.kernel.org/r/20230804180529.2483231-5-aleksander.lobakin@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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On x86_64, frag_* fields of struct page_pool are scattered across two
cachelines despite the summary size of 24 bytes. All three fields are
used in pretty much the same places, but the last field, ::frag_users,
is pushed out to the next CL, provoking unwanted false-sharing on
hotpath (frags allocation code).
There are some holes and cold members to move around. Move frag_* one
block up, placing them right after &page_pool_params perfectly at the
beginning of CL2. This doesn't do any meaningful to the second block, as
those are some destroy-path cold structures, and doesn't do anything to
::alloc_stats, which still starts at 200-byte offset, 8 bytes after CL3
(still fitting into 1 cacheline).
On my setup, this yields 1-2% of Mpps when using PP frags actively.
When it comes to 32-bit architectures with 32-byte CL: &page_pool_params
plus ::pad is 44 bytes, the block taken care of is 16 bytes within one
CL, so there should be at least no regressions from the actual change.
::pages_state_hold_cnt is not related directly to that triple, but is
paired currently with ::frags_offset and decoupling them would mean
either two 4-byte holes or more invasive layout changes.
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://lore.kernel.org/r/20230804180529.2483231-4-aleksander.lobakin@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Currently, touching <net/page_pool/types.h> triggers a rebuild of more
than half of the kernel. That's because it's included in
<linux/skbuff.h>. And each new include to page_pool/types.h adds more
[useless] data for the toolchain to process per each source file from
that pile.
In commit 6a5bcd84e886 ("page_pool: Allow drivers to hint on SKB
recycling"), Matteo included it to be able to call a couple of functions
defined there. Then, in commit 57f05bc2ab24 ("page_pool: keep pp info as
long as page pool owns the page") one of the calls was removed, so only
one was left. It's the call to page_pool_return_skb_page() in
napi_frag_unref(). The function is external and doesn't have any
dependencies. Having very niche page_pool_types.h included only for that
looks like an overkill.
As %PP_SIGNATURE is not local to page_pool.c (was only in the
early submissions), nothing holds this function there. Teleport
page_pool_return_skb_page() to skbuff.c, just next to the main consumer,
skb_pp_recycle(), and rename it to napi_pp_put_page(), as it doesn't
work with skbs at all and the former name tells nothing. The #if guards
here are only to not compile and have it in the vmlinux when not needed
-- both call sites are already guarded.
Now, touching page_pool_types.h only triggers rebuilding of the drivers
using it and a couple of core networking files.
Suggested-by: Jakub Kicinski <kuba@kernel.org> # make skbuff.h less heavy
Suggested-by: Alexander Duyck <alexanderduyck@fb.com> # move to skbuff.c
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://lore.kernel.org/r/20230804180529.2483231-3-aleksander.lobakin@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Split types and pure function declarations from page_pool.h
and add them in page_page/types.h, so that C sources can
include page_pool.h and headers should generally only include
page_pool/types.h as suggested by jakub.
Rename page_pool.h to page_pool/helpers.h to have both in
one place.
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com>
Reviewed-by: Alexander Duyck <alexanderduyck@fb.com>
Link: https://lore.kernel.org/r/20230804180529.2483231-2-aleksander.lobakin@intel.com
[Jakub: change microsoft/mana, fix kdoc paths in Documentation]
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd
Pull tpm fixes from Jarkko Sakkinen:
"A few more bug fixes"
* tag 'tpmdd-v6.5-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
tpm/tpm_tis: Disable interrupts for Lenovo P620 devices
tpm: Disable RNG for all AMD fTPMs
sysctl: set variable key_sysctls storage-class-specifier to static
tpm/tpm_tis: Disable interrupts for TUXEDO InfinityBook S 15/17 Gen7
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Refactor __ice_aq_get_set_rss_lut() to improve reader experience and limit
misuse scenarios (undesired LUT size for given LUT type).
Allow only 3 RSS LUT type+size variants:
PF LUT sized 2048, GLOBAL LUT sized 512, and VSI LUT sized 64, which were
used on default flows prior to this commit.
Prior to the change, code was mixing the meaning of @params->lut_size and
@params->lut_type, flag assigning logic was cryptic, while long defines
made everything harder to follow.
Fix that by extracting some code out to separate helpers.
Drop some of "shift by 0" statements that originated from Intel's
internal HW documentation.
Drop some redundant VSI masks (since ice_is_vsi_valid() gives "valid" for
up to 0x300 VSIs).
After sweeping all the defines out of struct ice_aqc_get_set_rss_lut,
it fits into 7 lines.
Finally apply some cleanup to the callsite
(use of the new enums, tmp var for lengthy bit extraction).
Note that flags for 128 and 64 sized VSI LUT are the same,
and 64 is used everywhere in the code (updated to new enum here), it just
happened that there was 128 in flag name.
__ice_aq_get_set_rss_key() uses the same VSI valid bit, make constant
common for it and __ice_aq_get_set_rss_lut().
Signed-off-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Tested-by: Arpana Arland <arpanax.arland@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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As some cards load FW from external sources, we have to wait
to be sure that FW is ready before setting link up.
Add check and wait for FW readiness
Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Add a function to find the C827 PHY node handle and return C827 PHY
index for the E810 products.
In order to bring this function to full functionality, some
helpers for this were written by Michal Michalik.
Co-developed-by: Michal Michalik <michal.michalik@intel.com>
Signed-off-by: Michal Michalik <michal.michalik@intel.com>
Signed-off-by: Karol Kolacinski <karol.kolacinski@intel.com>
Signed-off-by: Jan Sokolowski <jan.sokolowski@intel.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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enum ice_pkt_flags contains values such as ICE_PKT_FLAGS_VLAN and
ICE_PKT_FLAGS_TUNNEL, but actually the flags words which they refer to
contain a range of unrelated values - e.g. word 0 (ICE_PKT_FLAGS_VLAN)
contains fields such as from_network and ucast, which have nothing to do
with VLAN. Rename each enum value to ICE_PKT_FLAGS_MDID<number>, so it's
clear in which flags word does some value reside.
Signed-off-by: Marcin Szycik <marcin.szycik@linux.intel.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Currently it is possible to create a filter which breaks TX traffic, e.g.:
tc filter add dev $PF1 ingress protocol ip prio 1 flower ip_proto udp
dst_port $PORT action mirred egress redirect dev $VF1_PR
This adds a rule which might match both TX and RX traffic, and in TX path
the PF will actually receive the traffic, which breaks communication.
To fix this, add a match on direction metadata flag when adding a tc rule.
Because of the way metadata is currently handled, a duplicate lookup word
would appear if VLAN metadata is also added. The lookup would still work
correctly, but one word would be wasted. To prevent it, lookup 0 now always
contains all metadata. When any metadata needs to be added, it is added to
lookup 0 and lookup count is not incremented. This way, two flags residing
in the same word will take up one word, instead of two.
Note: the drop action is also affected, i.e. it will now only work in one
direction.
Signed-off-by: Marcin Szycik <marcin.szycik@linux.intel.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Allow LAG interfaces to be used in bridge offload using
netif_is_lag_master. In this case, search for ice netdev in
the list of LAG's lower devices.
Reviewed-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com>
Tested-by: Sujai Buvaneswaran <sujai.buvaneswaran@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Jason A. Donenfeld says:
====================
wireguard fixes for 6.5-rc6
Just one patch this time, somewhat late in the cycle:
1) Fix an off-by-one calculation for the maximum node depth size in the
allowedips trie data structure, and also adjust the self-tests to hit
this case so it doesn't regress again in the future.
====================
Link: https://lore.kernel.org/r/20230807132146.2191597-1-Jason@zx2c4.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In the allowedips self-test, nodes are inserted into the tree, but it
generated an even amount of nodes, but for checking maximum node depth,
there is of course the root node, which makes the total number
necessarily odd. With two few nodes added, it never triggered the
maximum depth check like it should have. So, add 129 nodes instead of
128 nodes, and do so with a more straightforward scheme, starting with
all the bits set, and shifting over one each time. Then increase the
maximum depth to 129, and choose a better name for that variable to
make it clear that it represents depth as opposed to bits.
Cc: stable@vger.kernel.org
Fixes: e7096c131e51 ("net: WireGuard secure network tunnel")
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Link: https://lore.kernel.org/r/20230807132146.2191597-2-Jason@zx2c4.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next
Marc Kleine-Budde says:
====================
pull-request: can-next 2023-08-07
The patch is from me and reverts the addition of the CAN controller
nodes in the allwinner d1 SoC.
* tag 'linux-can-next-for-6.6-20230807' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next:
Revert "riscv: dts: allwinner: d1: Add CAN controller nodes"
====================
Link: https://lore.kernel.org/r/20230807074222.1576119-1-mkl@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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|
BUG_ON(!vlan_info) is triggered in unregister_vlan_dev() with
following testcase:
# ip netns add ns1
# ip netns exec ns1 ip link add bond0 type bond mode 0
# ip netns exec ns1 ip link add bond_slave_1 type veth peer veth2
# ip netns exec ns1 ip link set bond_slave_1 master bond0
# ip netns exec ns1 ip link add link bond_slave_1 name vlan10 type vlan id 10 protocol 802.1ad
# ip netns exec ns1 ip link add link bond0 name bond0_vlan10 type vlan id 10 protocol 802.1ad
# ip netns exec ns1 ip link set bond_slave_1 nomaster
# ip netns del ns1
The logical analysis of the problem is as follows:
1. create ETH_P_8021AD protocol vlan10 for bond_slave_1:
register_vlan_dev()
vlan_vid_add()
vlan_info_alloc()
__vlan_vid_add() // add [ETH_P_8021AD, 10] vid to bond_slave_1
2. create ETH_P_8021AD protocol bond0_vlan10 for bond0:
register_vlan_dev()
vlan_vid_add()
__vlan_vid_add()
vlan_add_rx_filter_info()
if (!vlan_hw_filter_capable(dev, proto)) // condition established because bond0 without NETIF_F_HW_VLAN_STAG_FILTER
return 0;
if (netif_device_present(dev))
return dev->netdev_ops->ndo_vlan_rx_add_vid(dev, proto, vid); // will be never called
// The slaves of bond0 will not refer to the [ETH_P_8021AD, 10] vid.
3. detach bond_slave_1 from bond0:
__bond_release_one()
vlan_vids_del_by_dev()
list_for_each_entry(vid_info, &vlan_info->vid_list, list)
vlan_vid_del(dev, vid_info->proto, vid_info->vid);
// bond_slave_1 [ETH_P_8021AD, 10] vid will be deleted.
// bond_slave_1->vlan_info will be assigned NULL.
4. delete vlan10 during delete ns1:
default_device_exit_batch()
dev->rtnl_link_ops->dellink() // unregister_vlan_dev() for vlan10
vlan_info = rtnl_dereference(real_dev->vlan_info); // real_dev of vlan10 is bond_slave_1
BUG_ON(!vlan_info); // bond_slave_1->vlan_info is NULL now, bug is triggered!!!
Add S-VLAN tag related features support to bond driver. So the bond driver
will always propagate the VLAN info to its slaves.
Fixes: 8ad227ff89a7 ("net: vlan: add 802.1ad support")
Suggested-by: Ido Schimmel <idosch@idosch.org>
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://lore.kernel.org/r/20230802114320.4156068-1-william.xuanziyang@huawei.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Johannes Zink says:
====================
net: stmmac: correct MAC propagation delay
Changes in v3:
- work in Richard's review feedback. Thank you for reviewing my patch:
- as some of the hardware may have no or invalid correction value
registers: introduce feature switch which can be enabled in the glue
code drivers depending on the actual hardware support
- only enable the feature on the i.MX8MP for the time being, as the patch
improves timing accuracy and is tested for this hardware
- Link to v2: https://lore.kernel.org/r/20230719-stmmac_correct_mac_delay-v2-1-3366f38ee9a6@pengutronix.de
Changes in v2:
- fix builds for 32bit, this was found by the kernel build bot
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202307200225.B8rmKQPN-lkp@intel.com/
- while at it also fix an overflow by shifting a u32 constant from macro by 10bits
by casting the constant to u64
- Link to v1: https://lore.kernel.org/r/20230719-stmmac_correct_mac_delay-v1-1-768aa4d09334@pengutronix.de
Tested-by: Kurt Kanzenbach <kurt@linutronix.de> # imx8mp
====================
Link: https://lore.kernel.org/r/20230719-stmmac_correct_mac_delay-v3-0-61e63427735e@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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As the i.MX8MP supports reading MAC propagation delay and correcting the
Hardware timestamp counter for additional delays [1], enable the feature
for this SoC.
This reduces phase error of the PPS output from the PTP Hardware Clock
from approx 150ns to 100ns.
[1] i.MX8MP Reference Manual, rev.1 Section 11.7.2.5.3 "Timestamp
correction"
Signed-off-by: Johannes Zink <j.zink@pengutronix.de>
Link: https://lore.kernel.org/r/20230719-stmmac_correct_mac_delay-v3-2-61e63427735e@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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|
The IEEE1588 Standard specifies that the timestamps of Packets must be
captured when the PTP message timestamp point (leading edge of first
octet after the start of frame delimiter) crosses the boundary between
the node and the network. As the MAC latches the timestamp at an
internal point, the captured timestamp must be corrected for the
additional data transmission latency, as described in the publicly
available datasheet [1].
This patch only corrects for the MAC-Internal delay, which can be read
out from the MAC_Ingress_Timestamp_Latency register on DWMAC version 5,
since the Phy framework currently does not support querying the Phy
ingress and egress latency. The Closs Domain Crossing Circuits errors as
indicated in [1] are already being accounted in the
stmmac_get_tx_hwtstamp() function and are not corrected here.
As the Latency varies for different link speeds and MII
modes of operation, the correction value needs to be updated on each
link state change.
As the delay also causes a phase shift in the timestamp counter compared
to the rest of the network, this correction will also reduce phase error
when generating PPS outputs from the timestamp counter.
Since the correction registers may be unavailable on some hardware and
no feature bits are documented for dynamically detection of the MAC
propagation delay readout, introduce a feature bit to explicitely enable
MAC delay Correction in the gluecode driver.
[1] i.MX8MP Reference Manual, rev.1 Section 11.7.2.5.3 "Timestamp
correction"
Signed-off-by: Johannes Zink <j.zink@pengutronix.de>
Link: https://lore.kernel.org/r/20230719-stmmac_correct_mac_delay-v2-1-3366f38ee9a6@pengutronix.de
Link: https://lore.kernel.org/r/20230719-stmmac_correct_mac_delay-v3-1-61e63427735e@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Add missing capability check for each of the vnic counters exposed by
devlink health reporter, and thus avoid unexpected behavior due to
invalid access to registers.
While at it, read only the exact number of bits for each counter whether
it was 32 bits or 64 bits.
Fixes: b0bc615df488 ("net/mlx5: Add vnic devlink health reporter to PFs/VFs")
Fixes: a33682e4e78e ("net/mlx5e: Expose catastrophic steering error counters")
Signed-off-by: Lama Kayal <lkayal@nvidia.com>
Reviewed-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Rahul Rameshbabu <rrameshbabu@nvidia.com>
Reviewed-by: Maher Sanalla <msanalla@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
|
|
Handling pci errors should fully teardown and load back auxiliary
devices, same as done through mlx5 health recovery flow.
Fixes: 72ed5d5624af ("net/mlx5: Suspend auxiliary devices only in case of PCI device suspend")
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
|
|
When device is in error state, marked by the flag
MLX5_DEVICE_STATE_INTERNAL_ERROR, the HW and PCI may not be accessible
and so clock update work should be skipped. Furthermore, such access
through PCI in error state, after calling mlx5_pci_disable_device() can
result in failing to recover from pci errors.
Fixes: ef9814deafd0 ("net/mlx5e: Add HW timestamping (TS) support")
Reported-and-tested-by: Ganesh G R <ganeshgr@linux.ibm.com>
Closes: https://lore.kernel.org/netdev/9bdb9b9d-140a-7a28-f0de-2e64e873c068@nvidia.com
Signed-off-by: Moshe Shemesh <moshe@nvidia.com>
Reviewed-by: Aya Levin <ayal@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
|
|
Cited patch introduced buckets in hash mode, but missed to update
the ports/bucket check when modifying LAG.
Fix the check.
Fixes: 352899f384d4 ("net/mlx5: Lag, use buckets in hash mode")
Signed-off-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
|
|
If having the following tc rule on stack device:
filter parent ffff: protocol ip pref 3 flower chain 1
filter parent ffff: protocol ip pref 3 flower chain 1 handle 0x1
dst_mac 24:25:d0:e1:00:00
src_mac 02:25:d0:25:01:02
eth_type ipv4
ct_state +trk+new
in_hw in_hw_count 1
action order 1: ct commit zone 0 pipe
index 2 ref 1 bind 1 installed 3807 sec used 3779 sec firstused 3800 sec
Action statistics:
Sent 120 bytes 2 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
used_hw_stats delayed
action order 2: tunnel_key set
src_ip 192.168.1.25
dst_ip 192.168.1.26
key_id 4
dst_port 4789
csum pipe
index 3 ref 1 bind 1 installed 3807 sec used 3779 sec firstused 3800 sec
Action statistics:
Sent 120 bytes 2 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
used_hw_stats delayed
action order 3: mirred (Egress Redirect to device vxlan1) stolen
index 9 ref 1 bind 1 installed 3807 sec used 3779 sec firstused 3800 sec
Action statistics:
Sent 120 bytes 2 pkt (dropped 0, overlimits 0 requeues 0)
backlog 0b 0p requeues 0
used_hw_stats delayed
When handling FIB events, the rule in post act will not be deleted.
And because the post act rule has packet reformat and modify header
actions, also will hit the following syndromes:
mlx5_core 0000:08:00.0: mlx5_cmd_out_err:829:(pid 11613): DEALLOC_MODIFY_HEADER_CONTEXT(0x941) op_mod(0x0) failed, status bad resource state(0x9), syndrome (0x1ab444), err(-22)
mlx5_core 0000:08:00.0: mlx5_cmd_out_err:829:(pid 11613): DEALLOC_PACKET_REFORMAT_CONTEXT(0x93e) op_mod(0x0) failed, status bad resource state(0x9), syndrome (0x179e84), err(-22)
Fix it by unoffloading post act rule when handling FIB events.
Fixes: 314e1105831b ("net/mlx5e: Add post act offload/unoffload API")
Signed-off-by: Chris Mi <cmi@nvidia.com>
Reviewed-by: Vlad Buslov <vladbu@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
|
|
The controller number for ECVFs is always 0, because the ECPF must be
the eswitch owner for EC VFs to be enabled.
Fixes: dc13180824b7 ("net/mlx5: Enable devlink port for embedded cpu VF vports")
Signed-off-by: Daniel Jurgens <danielj@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
|
|
When querying eswitch functions 0 is a valid number of host VFs. After
introducing ARM SRIOV falling through to getting the max value from PCI
results in using the total VFs allowed on the ARM for the host.
Fixes: 86eec50beaf3 ("net/mlx5: Support querying max VFs from device");
Signed-off-by: Daniel Jurgens <danielj@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
|
|
The ECVF function ID range is 1..max_ec_vfs. Currently
mlx5_vport_to_func_id returns 0..max_ec_vfs - 1. Which
results in a syndrome when querying the caps with more
recent firmware, or reading incorrect caps with older
firmware that supports EC VFs.
Fixes: 9ac0b128248e ("net/mlx5: Update vport caps query/set for EC VFs")
Signed-off-by: Daniel Jurgens <danielj@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
|
|
Fixing wrong calculation of the modify hdr pattern size,
where the previously calculated number would not be enough
to accommodate the required number of actions.
Fixes: da5d0027d666 ("net/mlx5: DR, Add cache for modify header pattern")
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Reviewed-by: Erez Shitrit <erezsh@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
|
|
The flow rule can be splited, and the extra post_act rules are added
to post_act table. It's possible to trigger memleak when the rule
forwards packets from internal port and over tunnel, in the case that,
for example, CT 'new' state offload is allowed. As int_port object is
assigned to the flow attribute of post_act rule, and its refcnt is
incremented by mlx5e_tc_int_port_get(), but mlx5e_tc_int_port_put() is
not called, the refcnt is never decremented, then int_port is never
freed.
The kmemleak reports the following error:
unreferenced object 0xffff888128204b80 (size 64):
comm "handler20", pid 50121, jiffies 4296973009 (age 642.932s)
hex dump (first 32 bytes):
01 00 00 00 19 00 00 00 03 f0 00 00 04 00 00 00 ................
98 77 67 41 81 88 ff ff 98 77 67 41 81 88 ff ff .wgA.....wgA....
backtrace:
[<00000000e992680d>] kmalloc_trace+0x27/0x120
[<000000009e945a98>] mlx5e_tc_int_port_get+0x3f3/0xe20 [mlx5_core]
[<0000000035a537f0>] mlx5e_tc_add_fdb_flow+0x473/0xcf0 [mlx5_core]
[<0000000070c2cec6>] __mlx5e_add_fdb_flow+0x7cf/0xe90 [mlx5_core]
[<000000005cc84048>] mlx5e_configure_flower+0xd40/0x4c40 [mlx5_core]
[<000000004f8a2031>] mlx5e_rep_indr_offload.isra.0+0x10e/0x1c0 [mlx5_core]
[<000000007df797dc>] mlx5e_rep_indr_setup_tc_cb+0x90/0x130 [mlx5_core]
[<0000000016c15cc3>] tc_setup_cb_add+0x1cf/0x410
[<00000000a63305b4>] fl_hw_replace_filter+0x38f/0x670 [cls_flower]
[<000000008bc9e77c>] fl_change+0x1fd5/0x4430 [cls_flower]
[<00000000e7f766e4>] tc_new_tfilter+0x867/0x2010
[<00000000e101c0ef>] rtnetlink_rcv_msg+0x6fc/0x9f0
[<00000000e1111d44>] netlink_rcv_skb+0x12c/0x360
[<0000000082dd6c8b>] netlink_unicast+0x438/0x710
[<00000000fc568f70>] netlink_sendmsg+0x794/0xc50
[<0000000016e92590>] sock_sendmsg+0xc5/0x190
So fix this by moving int_port cleanup code to the flow attribute
free helper, which is used by all the attribute free cases.
Fixes: 8300f225268b ("net/mlx5e: Create new flow attr for multi table actions")
Signed-off-by: Jianbo Liu <jianbol@nvidia.com>
Reviewed-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
|
|
Hold RTNL lock when calling xdp_set_features() with a registered netdev,
as the call triggers the netdev notifiers. This could happen when
switching from uplink rep to nic profile for example.
This resolves the following call trace:
RTNL: assertion failed at net/core/dev.c (1953)
WARNING: CPU: 6 PID: 112670 at net/core/dev.c:1953 call_netdevice_notifiers_info+0x7c/0x80
Modules linked in: sch_mqprio sch_mqprio_lib act_tunnel_key act_mirred act_skbedit cls_matchall nfnetlink_cttimeout act_gact cls_flower sch_ingress bonding ib_umad ip_gre rdma_ucm mlx5_vfio_pci ipip tunnel4 ip6_gre gre mlx5_ib vfio_pci vfio_pci_core vfio_iommu_type1 ib_uverbs vfio mlx5_core ib_ipoib geneve nf_tables ip6_tunnel tunnel6 iptable_raw openvswitch nsh rpcrdma ib_iser libiscsi scsi_transport_iscsi rdma_cm iw_cm ib_cm ib_core xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xt_addrtype iptable_nat nf_nat br_netfilter rpcsec_gss_krb5 auth_rpcgss oid_registry overlay zram zsmalloc fuse [last unloaded: ib_uverbs]
CPU: 6 PID: 112670 Comm: devlink Not tainted 6.4.0-rc7_for_upstream_min_debug_2023_06_28_17_02 #1
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
RIP: 0010:call_netdevice_notifiers_info+0x7c/0x80
Code: 90 ff 80 3d 2d 6b f7 00 00 75 c5 ba a1 07 00 00 48 c7 c6 e4 ce 0b 82 48 c7 c7 c8 f4 04 82 c6 05 11 6b f7 00 01 e8 a4 7c 8e ff <0f> 0b eb a2 0f 1f 44 00 00 55 48 89 e5 41 54 48 83 e4 f0 48 83 ec
RSP: 0018:ffff8882a21c3948 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffffffff82e6f880 RCX: 0000000000000027
RDX: ffff88885f99b5c8 RSI: 0000000000000001 RDI: ffff88885f99b5c0
RBP: 0000000000000028 R08: ffff88887ffabaa8 R09: 0000000000000003
R10: ffff88887fecbac0 R11: ffff88887ff7bac0 R12: ffff8882a21c3968
R13: ffff88811c018940 R14: 0000000000000000 R15: ffff8881274401a0
FS: 00007fe141c81800(0000) GS:ffff88885f980000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f787c28b948 CR3: 000000014bcf3005 CR4: 0000000000370ea0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
? __warn+0x79/0x120
? call_netdevice_notifiers_info+0x7c/0x80
? report_bug+0x17c/0x190
? handle_bug+0x3c/0x60
? exc_invalid_op+0x14/0x70
? asm_exc_invalid_op+0x16/0x20
? call_netdevice_notifiers_info+0x7c/0x80
? call_netdevice_notifiers_info+0x7c/0x80
call_netdevice_notifiers+0x2e/0x50
mlx5e_set_xdp_feature+0x21/0x50 [mlx5_core]
mlx5e_nic_init+0xf1/0x1a0 [mlx5_core]
mlx5e_netdev_init_profile+0x76/0x110 [mlx5_core]
mlx5e_netdev_attach_profile+0x1f/0x90 [mlx5_core]
mlx5e_netdev_change_profile+0x92/0x160 [mlx5_core]
mlx5e_netdev_attach_nic_profile+0x1b/0x30 [mlx5_core]
mlx5e_vport_rep_unload+0xaa/0xc0 [mlx5_core]
__esw_offloads_unload_rep+0x52/0x60 [mlx5_core]
mlx5_esw_offloads_rep_unload+0x52/0x70 [mlx5_core]
esw_offloads_unload_rep+0x34/0x70 [mlx5_core]
esw_offloads_disable+0x2b/0x90 [mlx5_core]
mlx5_eswitch_disable_locked+0x1b9/0x210 [mlx5_core]
mlx5_devlink_eswitch_mode_set+0xf5/0x630 [mlx5_core]
? devlink_get_from_attrs_lock+0x9e/0x110
devlink_nl_cmd_eswitch_set_doit+0x60/0xe0
genl_family_rcv_msg_doit.isra.0+0xc2/0x110
genl_rcv_msg+0x17d/0x2b0
? devlink_get_from_attrs_lock+0x110/0x110
? devlink_nl_cmd_eswitch_get_doit+0x290/0x290
? devlink_pernet_pre_exit+0xf0/0xf0
? genl_family_rcv_msg_doit.isra.0+0x110/0x110
netlink_rcv_skb+0x54/0x100
genl_rcv+0x24/0x40
netlink_unicast+0x1f6/0x2c0
netlink_sendmsg+0x232/0x4a0
sock_sendmsg+0x38/0x60
? _copy_from_user+0x2a/0x60
__sys_sendto+0x110/0x160
? __count_memcg_events+0x48/0x90
? handle_mm_fault+0x161/0x260
? do_user_addr_fault+0x278/0x6e0
__x64_sys_sendto+0x20/0x30
do_syscall_64+0x3d/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7fe141b1340a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89
RSP: 002b:00007fff61d03de8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000afab00 RCX: 00007fe141b1340a
RDX: 0000000000000038 RSI: 0000000000afab00 RDI: 0000000000000003
RBP: 0000000000afa910 R08: 00007fe141d80200 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001
</TASK>
Fixes: 4d5ab0ad964d ("net/mlx5e: take into account device reconfiguration for xdp_features flag")
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
|
|
The Lenovo ThinkStation P620 suffers from an irq storm issue like various
other Lenovo machines, so add an entry for it to tpm_tis_dmi_table and
force polling.
It is worth noting that 481c2d14627d (tpm,tpm_tis: Disable interrupts after
1000 unhandled IRQs) does not seem to fix the problem on this machine, but
setting 'tpm_tis.interrupts=0' on the kernel command line does.
[jarkko@kernel.org: truncated the commit ID in the description to 12
characters]
Cc: stable@vger.kernel.org # v6.4+
Fixes: e644b2f498d2 ("tpm, tpm_tis: Enable interrupt test")
Signed-off-by: Jonathan McDowell <noodles@meta.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
|
|
The TPM RNG functionality is not necessary for entropy when the CPU
already supports the RDRAND instruction. The TPM RNG functionality
was previously disabled on a subset of AMD fTPM series, but reports
continue to show problems on some systems causing stutter root caused
to TPM RNG functionality.
Expand disabling TPM RNG use for all AMD fTPMs whether they have versions
that claim to have fixed or not. To accomplish this, move the detection
into part of the TPM CRB registration and add a flag indicating that
the TPM should opt-out of registration to hwrng.
Cc: stable@vger.kernel.org # 6.1.y+
Fixes: b006c439d58d ("hwrng: core - start hwrng kthread also for untrusted sources")
Fixes: f1324bbc4011 ("tpm: disable hwrng for fTPM on some AMD designs")
Reported-by: daniil.stas@posteo.net
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217719
Reported-by: bitlord0xff@gmail.com
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217212
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
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smatch reports
security/keys/sysctl.c:12:18: warning: symbol
'key_sysctls' was not declared. Should it be static?
This variable is only used in its defining file, so it should be static.
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
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TUXEDO InfinityBook S 15/17 Gen7 suffers from an IRQ problem on
tpm_tis like a few other laptops. Add an entry for the workaround.
Cc: stable@vger.kernel.org
Fixes: e644b2f498d2 ("tpm, tpm_tis: Enable interrupt test")
Link: https://bugzilla.suse.com/show_bug.cgi?id=1213645
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
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Don't handle bridge events for a netdev that doesn't belong to
an eswitch that registered for bridge events.
Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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The arg is always passed as true and thus redundant.
Signed-off-by: Roi Dayan <roid@nvidia.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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