- 08 Sep, 2024 2 commits
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Mahesh Bandewar authored
The ability to read the PHC (Physical Hardware Clock) alongside multiple system clocks is currently dependent on the specific hardware architecture. This limitation restricts the use of PTP_SYS_OFFSET_PRECISE to certain hardware configurations. The generic soultion which would work across all architectures is to read the PHC along with the latency to perform PHC-read as offered by PTP_SYS_OFFSET_EXTENDED which provides pre and post timestamps. However, these timestamps are currently limited to the CLOCK_REALTIME timebase. Since CLOCK_REALTIME is affected by NTP (or similar time synchronization services), it can experience significant jumps forward or backward. This hinders the precise latency measurements that PTP_SYS_OFFSET_EXTENDED is designed to provide. This problem could be addressed by supporting MONOTONIC_RAW timestamps within PTP_SYS_OFFSET_EXTENDED. Unlike CLOCK_REALTIME or CLOCK_MONOTONIC, the MONOTONIC_RAW timebase is unaffected by NTP adjustments. This enhancement can be implemented by utilizing one of the three reserved words within the PTP_SYS_OFFSET_EXTENDED struct to pass the clock-id for timestamps. The current behavior aligns with clock-id for CLOCK_REALTIME timebase (value of 0), ensuring backward compatibility of the UAPI. Signed-off-by:
Mahesh Bandewar <maheshb@google.com> Signed-off-by:
Vadim Fedorenko <vadfed@meta.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Dmitry Antipov authored
According to Vinicius (and carefully looking through the whole https://syzkaller.appspot.com/bug?extid=b65e0af58423fc8a73aa once again), txtime branch of 'taprio_change()' is not going to race against 'advance_sched()'. But using 'rcu_replace_pointer()' in the former may be a good idea as well. Suggested-by:
Vinicius Costa Gomes <vinicius.gomes@intel.com> Signed-off-by:
Dmitry Antipov <dmantipov@yandex.ru> Acked-by:
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- 07 Sep, 2024 23 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-nextJakub Kicinski authored
Pablo Neira Ayuso says: ==================== Netfilter updates for net-next The following patchset contains Netfilter updates for net-next: Patch #1 adds ctnetlink support for kernel side filtering for deletions, from Changliang Wu. Patch #2 updates nft_counter support to Use u64_stats_t, from Sebastian Andrzej Siewior. Patch #3 uses kmemdup_array() in all xtables frontends, from Yan Zhen. Patch #4 is a oneliner to use ERR_CAST() in nf_conntrack instead opencoded casting, from Shen Lichuan. Patch #5 removes unused argument in nftables .validate interface, from Florian Westphal. Patch #6 is a oneliner to correct a typo in nftables kdoc, from Simon Horman. Patch #7 fixes missing kdoc in nftables, also from Simon. Patch #8 updates nftables to handle timeout less than CONFIG_HZ. Patch #9 rejects element expiration if timeout is zero, otherwise it is silently ignored. Patch #10 disallows element expiration larger than timeout. Patch #11 removes unnecessary READ_ONCE annotation while mutex is held. Patch #12 adds missing READ_ONCE/WRITE_ONCE annotation in dynset. Patch #13 annotates data-races around element expiration. Patch #14 allocates timeout and expiration in one single set element extension, they are tighly couple, no reason to keep them separated anymore. Patch #15 updates nftables to interpret zero timeout element as never times out. Note that it is already possible to declare sets with elements that never time out but this generalizes to all kind of set with timeouts. Patch #16 supports for element timeout and expiration updates. * tag 'nf-next-24-09-06' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next: netfilter: nf_tables: set element timeout update support netfilter: nf_tables: zero timeout means element never times out netfilter: nf_tables: consolidate timeout extension for elements netfilter: nf_tables: annotate data-races around element expiration netfilter: nft_dynset: annotate data-races around set timeout netfilter: nf_tables: remove annotation to access set timeout while holding lock netfilter: nf_tables: reject expiration higher than timeout netfilter: nf_tables: reject element expiration with no timeout netfilter: nf_tables: elements with timeout below CONFIG_HZ never expire netfilter: nf_tables: Add missing Kernel doc netfilter: nf_tables: Correct spelling in nf_tables.h netfilter: nf_tables: drop unused 3rd argument from validate callback ops netfilter: conntrack: Convert to use ERR_CAST() netfilter: Use kmemdup_array instead of kmemdup for multiple allocation netfilter: nft_counter: Use u64_stats_t for statistic. netfilter: ctnetlink: support CTA_FILTER for flush ==================== Link: https://patch.msgid.link/20240905232920.5481-1-pablo@netfilter.orgSigned-off-by:
Jakub Kicinski <kuba@kernel.org>
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Vadim Fedorenko authored
The PCIe bus can be pretty busy during boot and probe function can see excessive delays. Let's find the minimal value out of several tests and use it as estimated value. Signed-off-by:
Vadim Fedorenko <vadim.fedorenko@linux.dev> Link: https://patch.msgid.link/20240905140028.560454-1-vadim.fedorenko@linux.devSigned-off-by:
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Eric Dumazet authored
netpoll_srcu is currently used from netpoll_poll_disable() and __netpoll_cleanup() Both functions run under RTNL, using netpoll_srcu adds confusion and no additional protection. Moreover the synchronize_srcu() call in __netpoll_cleanup() is performed before clearing np->dev->npinfo, which violates RCU rules. After this patch, netpoll_poll_disable() and netpoll_poll_enable() simply use rtnl_dereference(). This saves a big chunk of memory (more than 192KB on platforms with 512 cpus) Signed-off-by:
Eric Dumazet <edumazet@google.com> Reviewed-by:
Breno Leitao <leitao@debian.org> Link: https://patch.msgid.link/20240905084909.2082486-1-edumazet@google.comSigned-off-by:
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Jakub Kicinski authored
Simon Horman says: ==================== octeontx2: Address some warnings This patchset addresses some warnings flagged by Sparse, gcc-14, and clang-18 in files touched by recent patch submissions. Although these changes do not alter the functionality of the code, by addressing them real problems introduced in future which are flagged by Sparse will stand out more readily. v1: https://lore.kernel.org/20240903-octeontx2-sparse-v1-0-f190309ecb0a@kernel.org ==================== Link: https://patch.msgid.link/20240904-octeontx2-sparse-v2-0-14f2305fe4b2@kernel.orgSigned-off-by:
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Simon Horman authored
In otx2_sqe_add_ext() iplen is used to hold a 16-bit big-endian value, but it's type is u16, indicating a host byte order integer. Address this mismatch by changing the type of iplen to __be16. Flagged by Sparse as: .../otx2_txrx.c:699:31: warning: incorrect type in assignment (different base types) .../otx2_txrx.c:699:31: expected unsigned short [usertype] iplen .../otx2_txrx.c:699:31: got restricted __be16 [usertype] .../otx2_txrx.c:701:54: warning: incorrect type in assignment (different base types) .../otx2_txrx.c:701:54: expected restricted __be16 [usertype] tot_len .../otx2_txrx.c:701:54: got unsigned short [usertype] iplen .../otx2_txrx.c:704:60: warning: incorrect type in assignment (different base types) .../otx2_txrx.c:704:60: expected restricted __be16 [usertype] payload_len .../otx2_txrx.c:704:60: got unsigned short [usertype] iplen Introduced in commit dc1a9bf2 ("octeontx2-pf: Add UDP segmentation offload support") No functional change intended. Compile tested only by author. Tested-by:
Geetha sowjanya <gakula@marvell.com> Signed-off-by:
Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20240904-octeontx2-sparse-v2-2-14f2305fe4b2@kernel.orgSigned-off-by:
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Simon Horman authored
Recently I noticed that both gcc-14 and clang-18 report that passing a non-string literal as the format argument of alloc_workqueue() is potentially insecure. E.g. clang-18 says: .../rvu.c:2493:32: warning: format string is not a string literal (potentially insecure) [-Wformat-security] 2493 | mw->mbox_wq = alloc_workqueue(name, | ^~~~ .../rvu.c:2493:32: note: treat the string as an argument to avoid this 2493 | mw->mbox_wq = alloc_workqueue(name, | ^ | "%s", It is always the case where the contents of name is safe to pass as the format argument. That is, in my understanding, it never contains any format escape sequences. But, it seems better to be safe than sorry. And, as a bonus, compiler output becomes less verbose by addressing this issue as suggested by clang-18. Compile tested only by author. Tested-by: -
Rosen Penev authored
No need for the mask when there's already a macro for this. Signed-off-by:
Rosen Penev <rosenp@gmail.com> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Link: https://patch.msgid.link/20240904205659.7470-1-rosenp@gmail.comSigned-off-by:
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Edward Cree authored
Siena hardware does not support custom RSS contexts, but when the driver was forked from sfc.ko, some of the plumbing for them was copied across from the common code. Actually trying to use them would lead to EOPNOTSUPP as the relevant efx_nic_type methods were not populated. Remove this dead code from the Siena driver. Signed-off-by:
Edward Cree <ecree.xilinx@gmail.com> Reviewed-by:
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Jakub Kicinski authored
Vasileios Amoiridis says: ==================== Use functionality of irq_get_trigger_type() v1: https://lore.kernel.org/20240902225534.130383-1-vassilisamir@gmail.com ==================== Link: https://patch.msgid.link/20240904151018.71967-1-vassilisamir@gmail.comSigned-off-by:
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Vasileios Amoiridis authored
Convert irqd_get_trigger_type(irq_get_irq_data(irq)) cases to the more simple irq_get_trigger_type(irq). Signed-off-by:
Vasileios Amoiridis <vassilisamir@gmail.com> Reviewed-by:
Alvin Šipraga <alsi@bang-olufsen.dk> Link: https://patch.msgid.link/20240904151018.71967-4-vassilisamir@gmail.comSigned-off-by:
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Vasileios Amoiridis authored
Convert irqd_get_trigger_type(irq_get_irq_data(irq)) cases to the more simple irq_get_trigger_type(irq). Reviewed-by:
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Vasileios Amoiridis authored
Convert irqd_get_trigger_type(irq_get_irq_data(irq)) cases to the more simple irq_get_trigger_type(irq). Signed-off-by:
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Sascha Hauer authored
When asynchronous encryption is used KTLS sends out the final data at proto->close time. This becomes problematic when the task calling close() receives a signal. In this case it can happen that tcp_sendmsg_locked() called at close time returns -ERESTARTSYS and the final data is not sent. The described situation happens when KTLS is used in conjunction with io_uring, as io_uring uses task_work_add() to add work to the current userspace task. A discussion of the problem along with a reproducer can be found in [1] and [2] Fix this by waiting for the asynchronous encryption to be completed on the final message. With this there is no data left to be sent at close time. [1] https://lore.kernel.org/all/20231010141932.GD3114228@pengutronix.de/ [2] https://lore.kernel.org/all/20240315100159.3898944-1-s.hauer@pengutronix.de/Signed-off-by:
Sascha Hauer <s.hauer@pengutronix.de> Link: https://patch.msgid.link/20240904-ktls-wait-async-v1-1-a62892833110@pengutronix.deSigned-off-by:
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Jakub Kicinski authored
Hongbo Li says: ==================== make use of the helper macro LIST_HEAD() The macro LIST_HEAD() declares a list variable and initializes it, which can be used to simplify the steps of list initialization, thereby simplifying the code. These serials just do some equivalatent substitutions, and with no functional modifications. ==================== Link: https://patch.msgid.link/20240904093243.3345012-1-lihongbo22@huawei.comSigned-off-by:
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Hongbo Li authored
list_head can be initialized automatically with LIST_HEAD() instead of calling INIT_LIST_HEAD(). Here we can simplify the code. Signed-off-by:
Hongbo Li <lihongbo22@huawei.com> Link: https://patch.msgid.link/20240904093243.3345012-6-lihongbo22@huawei.comSigned-off-by:
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Hongbo Li authored
list_head can be initialized automatically with LIST_HEAD() instead of calling INIT_LIST_HEAD(). Here we can simplify the code. Signed-off-by:
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Hongbo Li authored
list_head can be initialized automatically with LIST_HEAD() instead of calling INIT_LIST_HEAD(). Here we can simplify the code. Signed-off-by:
Pablo Neira Ayuso <pablo@netfilter.org> Link: https://patch.msgid.link/20240904093243.3345012-4-lihongbo22@huawei.comSigned-off-by:
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Hongbo Li authored
list_head can be initialized automatically with LIST_HEAD() instead of calling INIT_LIST_HEAD(). Here we can simplify the code. Signed-off-by:
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Hongbo Li authored
list_head can be initialized automatically with LIST_HEAD() instead of calling INIT_LIST_HEAD(). Here we can simplify the code. Signed-off-by:
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Chen Ni authored
Replace comma between expressions with semicolons. Using a ',' in place of a ';' can have unintended side effects. Although that is not the case here, it is seems best to use ';' unless ',' is intended. Found by inspection. No functional change intended. Compile tested only. Signed-off-by:
Chen Ni <nichen@iscas.ac.cn> Acked-by:
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Chen Ni authored
Replace comma between expressions with semicolons. Using a ',' in place of a ';' can have unintended side effects. Although that is not the case here, it is seems best to use ';' unless ',' is intended. Found by inspection. No functional change intended. Compile tested only. Signed-off-by:
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Chen Ni authored
Replace comma between expressions with semicolons. Using a ',' in place of a ';' can have unintended side effects. Although that is not the case here, it is seems best to use ';' unless ',' is intended. Found by inspection. No functional change intended. Compile tested only. Signed-off-by:
Shannon Nelson <shannon.nelson@amd.com> Link: https://patch.msgid.link/20240904081728.1353260-1-nichen@iscas.ac.cnSigned-off-by:
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Chen Ni authored
Replace comma between expressions with semicolons. Using a ',' in place of a ';' can have unintended side effects. Although that is not the case here, it is seems best to use ';' unless ',' is intended. Found by inspection. No functional change intended. Compile tested only. Signed-off-by:
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- 06 Sep, 2024 15 commits
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David S. Miller authored
Gal Pressman says: ==================== RX software timestamp for all - round 2 Round 1 of drivers conversion was merged [1], this is round 2, more drivers to follow. [1] https://lore.kernel.org/netdev/20240901112803.212753-1-gal@nvidia.com/ ==================== Signed-off-by:
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Gal Pressman authored
The responsibility for reporting of RX software timestamp has moved to the core layer (see __ethtool_get_ts_info()), remove usage from the device drivers. Reviewed-by:
Carolina Jubran <cjubran@nvidia.com> Reviewed-by:
Rahul Rameshbabu <rrameshbabu@nvidia.com> Signed-off-by:
Gal Pressman <gal@nvidia.com> Signed-off-by:
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Gal Pressman authored
The responsibility for reporting of RX software timestamp has moved to the core layer (see __ethtool_get_ts_info()), remove usage from the device drivers. Reviewed-by:
Potnuri Bharat Teja <bharat@chelsio.com> Signed-off-by:
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Gal Pressman authored
The responsibility for reporting of RX software timestamp has moved to the core layer (see __ethtool_get_ts_info()), remove usage from the device drivers. Reviewed-by:
Tony Nguyen <anthony.l.nguyen@intel.com> Signed-off-by:
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Gal Pressman authored
The responsibility for reporting of RX software timestamp has moved to the core layer (see __ethtool_get_ts_info()), remove usage from the device drivers. Reviewed-by:
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Gal Pressman authored
The responsibility for reporting of RX software timestamp has moved to the core layer (see __ethtool_get_ts_info()), remove usage from the device drivers. Reviewed-by:
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Gal Pressman authored
The responsibility for reporting of RX software timestamp has moved to the core layer (see __ethtool_get_ts_info()), remove usage from the device drivers. Reviewed-by:
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Gal Pressman authored
The responsibility for reporting of RX software timestamp has moved to the core layer (see __ethtool_get_ts_info()), remove usage from the device drivers. Reviewed-by:
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Gal Pressman authored
The responsibility for reporting of RX software timestamp has moved to the core layer (see __ethtool_get_ts_info()), remove usage from the device drivers. Reviewed-by:
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Gal Pressman authored
The responsibility for reporting of RX software timestamp has moved to the core layer (see __ethtool_get_ts_info()), remove usage from the device drivers. Reviewed-by:
Roger Quadros <rogerq@kernel.org> Reviewed-by:
MD Danish Anwar <danishanwar@ti.com> Signed-off-by:
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Gal Pressman authored
The responsibility for reporting of RX software timestamp has moved to the core layer (see __ethtool_get_ts_info()), remove usage from the device drivers. Reviewed-by:
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Gal Pressman authored
The responsibility for reporting of RX software timestamp has moved to the core layer (see __ethtool_get_ts_info()), remove usage from the device drivers. Reviewed-by:
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Gal Pressman authored
The responsibility for reporting of RX software timestamp has moved to the core layer (see __ethtool_get_ts_info()), remove usage from the device drivers. Reviewed-by:
Petr Machata <petrm@nvidia.com> Signed-off-by:
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Gal Pressman authored
The responsibility for reporting of RX software timestamp has moved to the core layer (see __ethtool_get_ts_info()), remove usage from the device drivers. Reviewed-by:
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Gal Pressman authored
The responsibility for reporting of RX software timestamp has moved to the core layer (see __ethtool_get_ts_info()), remove usage from the device drivers. Reviewed-by:
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