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2021-08-22RDMA/rtrs-clt: Fix counting inflight IOGioh Kim
There are mis-match at counting inflight IO after changing the multipath policy. For example, we started fio test with round-robin policy and then we changed the policy to min-inflight. IOs created under the RR policy is finished under the min-inflight policy and inflight counter only decreased. So the counter would be negative value. And also we started fio test with min-inflight policy and changed the policy to the round-robin. IOs created under the min-inflight policy increased the inflight IO counter but the inflight IO counter was not decreased because the policy was the round-robin when IO was finished. So it should count IOs only if the IO is created under the min-inflight policy. It should not care the policy when the IO is finished. This patch adds a field mp_policy in struct rtrs_clt_io_req and stores the multipath policy when an object of rtrs_clt_io_req is created. Then rtrs-clt checks the mp_policy of only struct rtrs_clt_io_req instead of the struct rtrs_clt. Link: https://lore.kernel.org/r/20210806112112.124313-6-haris.iqbal@ionos.com Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com> Signed-off-by: Jack Wang <jinpu.wang@ionos.com> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-08-22RDMA/rtrs: Remove all likely and unlikelyGioh Kim
The IO performance test with fio after swapping the likely and unlikely macros in all if-statement shows no difference. They do not help for the performance of rtrs. Thanks to Haakon Bugge for the test scenario. The fio test did random read on 32 rnbd devices and 64 processes. Test environment: - Intel(R) Xeon(R) Gold 6130 CPU @ 2.10GHz - 376G memory - kernel version: 5.4.86 - gcc version: gcc (Debian 8.3.0-6) 8.3.0 - Infiniband controller: Mellanox Technologies MT27800 Family [ConnectX-5] Test result: - before swapping: IOPS=829k, BW=3239MiB/s - after swapping: IOPS=829k, BW=3238MiB/s - remove all (un)likely: IOPS=829k, BW=3238MiB/s Link: https://lore.kernel.org/r/20210806112112.124313-5-haris.iqbal@ionos.com Signed-off-by: Gioh Kim <gi-oh.kim@ionos.com> Signed-off-by: Jack Wang <jinpu.wang@ionos.com> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-08-22RDMA/rtrs: Remove unused functionsJack Wang
The two functions are unused, so just remove them. Link: https://lore.kernel.org/r/20210806112112.124313-3-haris.iqbal@ionos.com Signed-off-by: Jack Wang <jinpu.wang@ionos.com> Reviewed-by: Md Haris Iqbal <haris.iqbal@ionos.com> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-08-22RDMA/rtrs-clt: During add_path change for_new_clt according to path_numMd Haris Iqbal
When all the paths are removed for a session, the addition of the first path is like a new session for the storage server. Hence, for_new_clt has to be set to 1. Link: https://lore.kernel.org/r/20210806112112.124313-2-haris.iqbal@ionos.com Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com> Signed-off-by: Jack Wang <jinpu.wang@ionos.com> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-08-22Merge branch 'mlx5-next' of ↵Jason Gunthorpe
git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux Saeed Mahameed says: ==================== This pulls mlx5-next branch which includes patches already reviewed on net-next and rdma mailing lists. 1) mlx5 single E-Switch FDB for lag 2) IB/mlx5: Rename is_apu_thread_cq function to is_apu_cq 3) Add DCS caps & fields support We need this in net-next as multiple features are dependent on the single FDB feature. ==================== Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> * mellanox/mlx5-next: net/mlx5: Lag, Create shared FDB when in switchdev mode net/mlx5: E-Switch, add logic to enable shared FDB net/mlx5: Lag, move lag destruction to a workqueue net/mlx5: Lag, properly lock eswitch if needed net/mlx5: Add send to vport rules on paired device net/mlx5: E-Switch, Add event callback for representors net/mlx5e: Use shared mappings for restoring from metadata net/mlx5e: Add an option to create a shared mapping net/mlx5: E-Switch, set flow source for send to uplink rule RDMA/mlx5: Add shared FDB support {net, RDMA}/mlx5: Extend send to vport rules RDMA/mlx5: Fill port info based on the relevant eswitch net/mlx5: Lag, add initial logic for shared FDB net/mlx5: Return mdev from eswitch IB/mlx5: Rename is_apu_thread_cq function to is_apu_cq
2021-08-22cxgb4: Search VPD with pci_vpd_find_ro_info_keyword()Heiner Kallweit
Use pci_vpd_find_ro_info_keyword() to search for keywords in VPD to simplify the code. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22cxgb4: Remove unused vpd_param member ecHeiner Kallweit
Member ec isn't used, so remove it. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22cxgb4: Validate VPD checksum with pci_vpd_check_csum()Heiner Kallweit
Validate the VPD checksum with pci_vpd_check_csum() to simplify the code. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22bnxt: Search VPD with pci_vpd_find_ro_info_keyword()Heiner Kallweit
Use pci_vpd_find_ro_info_keyword() to search for keywords in VPD to simplify the code. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22bnxt: Read VPD with pci_vpd_alloc()Heiner Kallweit
Use pci_vpd_alloc() to dynamically allocate a properly sized buffer and read the full VPD data into it. This simplifies the code, and we no longer have to make assumptions about VPD size. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22bnx2x: Search VPD with pci_vpd_find_ro_info_keyword()Heiner Kallweit
Use pci_vpd_find_ro_info_keyword() to search for keywords in VPD to simplify the code. str_id_reg and str_id_cap hold the same string and are used in the same comparison. This doesn't make sense, use one string str_id instead. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22bnx2x: Read VPD with pci_vpd_alloc()Heiner Kallweit
Use pci_vpd_alloc() to dynamically allocate a properly sized buffer and read the full VPD data into it. This simplifies the code, and we no longer have to make assumptions about VPD size. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22bnx2: Replace open-coded version with swab32s()Heiner Kallweit
Use swab32s() instead of open-coding it. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22bnx2: Search VPD with pci_vpd_find_ro_info_keyword()Heiner Kallweit
Use pci_vpd_find_ro_info_keyword() to search for keywords in VPD to simplify the code. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22sfc: falcon: Search VPD with pci_vpd_find_ro_info_keyword()Heiner Kallweit
This is the same as 37838aa437c7 "sfc: Search VPD with pci_vpd_find_ro_info_keyword()", just for the falcon chip version. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22sfc: falcon: Read VPD with pci_vpd_alloc()Heiner Kallweit
This is the same as 5119e20facfa "sfc: Read VPD with pci_vpd_alloc()", just for the falcon chip version. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22mlxsw: spectrum_router: Increase parsing depth for multipath hashAmit Cohen
Commit 01848e05f8bb ("mlxsw: spectrum_router: Add support for inner layer 3 multipath hash policy") and commit daeabf89eb89 ("mlxsw: spectrum_router: Add support for custom multipath hash policy") added support for multipath hash policies where the hash is calculated based on inner packet fields. For IPv6-in-IPv6 packets, the default parsing depth (96 bytes) is not enough when these policies are used. Therefore, for such cases, call the new API to increase / decrease the parsing depth as necessary. Care is taken to ensure the API is not called multiple times. Signed-off-by: Amit Cohen <amcohen@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22mlxsw: Remove old parsing depth infrastructureAmit Cohen
The previous patches added new API to handle parsing depth and converted the existing code to use it. Remove the old infrastructure which is not needed anymore. Signed-off-by: Amit Cohen <amcohen@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22mlxsw: Convert existing consumers to use new API for parsing configurationAmit Cohen
Convert VxLAN and PTP modules to increase parsing depth using new API that was added in the previous patch. Separate MPRS register's configuration to VxLAN related configuration and parsing depth configuration. Handle each one using the appropriate API. Signed-off-by: Amit Cohen <amcohen@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22mlxsw: spectrum: Add infrastructure for parsing configurationAmit Cohen
Spectrum ASICs have a configurable limit on how deep into the packet they parse. By default, the limit is 96 bytes. There are several cases where this parsing depth is not enough and there is a need to increase it. Currently, increasing parsing depth is maintained as part of VxLAN module, because the MPRS register which configures parsing depth also configures UDP destination port number used for VxLAN encapsulation and decapsulation. Add an API for increasing parsing depth as part of spectrum.c code, so that it will be possible to use it from other modules. In addition, add an API for setting UDP destination port and protect it using a dedicated lock for saving parsing configurations. The lock is needed as not all the callers hold RTNL lock. Maintain a counter for increased parsing depth consumers. For first consumer subscription, increase the parsing depth and for last consumer unsubscription, set parsing depth to default value. Signed-off-by: Amit Cohen <amcohen@nvidia.com> Signed-off-by: Ido Schimmel <idosch@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22octeontx2-af: cn10k: Use FLIT0 register instead of FLIT1Geetha sowjanya
RVU SMMU widget stores the final translated PA at RVU_AF_SMMU_TLN_FLIT0<57:18> instead of FLIT1 register. This patch fixes the address translation logic to use the correct register. Fixes: 893ae97214c3 ("octeontx2-af: cn10k: Support configurable LMTST regions") Signed-off-by: Geetha sowjanya <gakula@marvell.com> Signed-off-by: Sunil Goutham <sgoutham@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22octeontx2-pf: Fix algorithm index in MCAM rules with RSS actionSunil Goutham
Otherthan setting action as RSS in NPC MCAM entry, RSS flowkey algorithm index also needs to be set. Otherwise whatever algorithm is defined at flowkey index '0' will be considered by HW and pkt flows will be distributed as such. Fix this by saving the flowkey index sent by admin function while initializing RSS and then use it when framing MCAM rules. Fixes: 81a4362016e7 ("octeontx2-pf: Add RSS multi group support") Signed-off-by: Sunil Goutham <sgoutham@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22octeontx2-pf: Don't install VLAN offload rule if netdev is downSunil Goutham
Whenever user changes interface MAC address both default DMAC based MCAM rule and VLAN offload (for strip) rules are updated with new MAC address. To update or install VLAN offload rule PF driver needs interface's receive channel info, which is retrieved from admin function at the time of NIXLF initialization. If user changes MAC address before interface is UP, VLAN offload rule installation will fail and throw error as receive channel is not valid. To avoid this, skip VLAN offload rule installation if netdev is not UP. This rule will anyway be reinslatted as part of open() call. Fixes: fd9d7859db6c ("octeontx2-pf: Implement ingress/egress VLAN offload") Signed-off-by: Sunil Goutham <sgoutham@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22octeontx2-af: Check capability flag while freeing ipolicer memoryGeetha sowjanya
Bandwidth profiles (ipolicer structure)is implemented only on CN10K platform. But current code try to free the ipolicer memory without checking the capibility flag leading to driver crash on OCTEONTX2 platform. This patch fixes the issue by add capability flag check. Fixes: e8e095b3b3700 ("octeontx2-af: cn10k: Bandwidth profiles config support") Signed-off-by: Geetha sowjanya <gakula@marvell.com> Signed-off-by: Sunil Goutham <sgoutham@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22octeontx2-af: Use DMA_ATTR_FORCE_CONTIGUOUS attribute in DMA allocGeetha sowjanya
CN10K platform requires physically contiguous memory for LMTST operations which goes beyond a single page. Not having physically contiguous memory will result in HW fetching transmit descriptors from a wrong memory location. Hence use DMA_ATTR_FORCE_CONTIGUOUS attribute while allocating LMTST regions. Signed-off-by: Geetha sowjanya <gakula@marvell.com> Signed-off-by: Sunil Goutham <sgoutham@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22octeontx2-pf: send correct vlan priority mask to npc_install_flow_reqNaveen Mamindlapalli
This patch corrects the erroneous vlan priority mask field that was send to npc_install_flow_req. Fixes: 1d4d9e42c240 ("octeontx2-pf: Add tc flower hardware offload on ingress traffic") Signed-off-by: Naveen Mamindlapalli <naveenm@marvell.com> Signed-off-by: Sunil Goutham <sgoutham@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22octeontx2-pf: Don't mask out supported link modesHariprasad Kelam
Supported link modes are updated by firmware in shared structure per interface. Kernel uses this value to display supported link modes via ethtool. Currently there is extra validation that firmware updated modes are validated against internal list of supported modes. As intenal list of supported modes are not updated frequently new modes supported by firmware are not updated to ethtool. Hence remove extra validation and report all firmware updated modes. Signed-off-by: Hariprasad Kelam <hkelam@marvell.com> Signed-off-by: Sunil Goutham <sgoutham@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22octeontx2-af: Handle return value in block reset.Geetha sowjanya
Print debug message if any of the RVU hardware blocks reset fails. Signed-off-by: Geetha sowjanya <gakula@marvell.com> Signed-off-by: Sunil Goutham <sgoutham@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22octeontx2-af: cn10k: Fix SDP base channel numberSubbaraya Sundeep
As per hardware the base channel number configured for programmable channels of a block must be multiple of number of channels of that block. This condition is not met for SDP base channel currently. Hence this patch ensures all the base channel numbers of all blocks are multiple of number of channels present in the blocks. Also instead of hardcoding SDP number of channels the same is read from the NIX_AF_CONST1 register. Fixes: 242da439214b ("octeontx2-af: cn10k: Add support for programmable") Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com> Signed-off-by: Sunil Goutham <sgoutham@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22octeontx2-pf: Fix NIX1_RX interface backpressureSubbaraya Sundeep
'bp_ena' in Aura context is NIX block index, setting it zero will always backpressure NIX0 block, even if NIXLF belongs to NIX1. Hence fix this by setting it appropriately based on NIX block address. Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com> Signed-off-by: Hariprasad Kelam <hkelam@marvell.com> Signed-off-by: Sunil Goutham <sgoutham@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22net: ipa: rename "ipa_clock.c"Alex Elder
Finally, rename "ipa_clock.c" to be "ipa_power.c" and "ipa_clock.h" to be "ipa_power.h". Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22net: ipa: rename ipa_clock_* symbolsAlex Elder
Rename a number of functions to clarify that there is no longer a notion of an "IPA clock," but rather that the functions are more generally related to IPA power management. ipa_clock_enable() -> ipa_power_enable() ipa_clock_disable() -> ipa_power_disable() ipa_clock_rate() -> ipa_core_clock_rate() ipa_clock_init() -> ipa_power_init() ipa_clock_exit() -> ipa_power_exit() Rename the ipa_clock structure to be ipa_power. Rename all variables and fields using that structure type "power" rather than "clock". Rename the ipa_clock_data structure to be ipa_power_data, and more broadly, just substitute "power" for "clock" in places that previously represented things related to the "IPA clock". Update comments throughout. Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22net: ipa: use autosuspendAlex Elder
Use runtime power management autosuspend. Up until this point, we only suspended the IPA hardware for system suspend; now we'll suspend it aggressively using runtime power management, setting the initial autosuspend delay to half a second of inactivity. Replace pm_runtime_put() calls with pm_runtime_put_autosuspend(), call pm_runtime_mark_last_busy() before each of those. In places where we're shutting things down, or decrementing power references for errors, use pm_runtime_put_noidle() instead. Finally, remove ipa_runtime_idle(), so the ->runtime_suspend callback will occur if idle. Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-22watchdog: ixp4xx: Rewrite driver to use coreLinus Walleij
This rewrites the IXP4xx watchdog driver as follows: - Spawn the watchdog driver as a platform device from the timer driver. It's one device in the hardware, and the fact that Linux splits the handling into two different devices is a Linux pecularity, and thus it becomes a Linux pecularity to spawn a separate watchdog driver. - Spawn the watchdog driver from the timer driver at probe(). This is well after the timer driver as actually registered and started and we know the register base is available. - Instead of looping back callbacks to the timer drivers for all watchdog calls, pass the register base to the watchdog driver and manage the registers there. The two drivers aren't even interested in the same register so the spinlock is totally surplus, delete it. - Replace pretty much all of the content in the watchdog driver with a simple, modern watchdog driver utilizing the watchdog core instead of registering its own misc device and ioctl() handling. - Drop module parameters as the same already exist in the watchdog core. What remains is a slim elegant (IMO) watchdog driver using the watchdog core, spawning from device tree or boardfile alike. Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20210726121214.2572836-1-linus.walleij@linaro.org Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-08-22watchdog: Start watchdog in watchdog_set_last_hw_keepalive only if appropriateJan Kiszka
We must not pet a running watchdog when handle_boot_enabled is off because this will kick off automatic triggering before userland is running, defeating the purpose of the handle_boot_enabled control. Furthermore, don't ping in case watchdog_set_last_hw_keepalive was called incorrectly when the hardware watchdog is actually not running. Fixed: cef9572e9af3 ("watchdog: add support for adjusting last known HW keepalive time") Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/93d56386-6e37-060b-55ce-84de8cde535f@web.de Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-08-22watchdog: max63xx_wdt: Add device tree probingLinus Walleij
This adds device tree probing to the MAX63xx driver so it can be instantiated from the device tree. We use the generic fwnode-based method to get to the match data and clean up by constifying the functions as the match is indeed a const. Cc: Marc Zyngier <maz@kernel.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20210714153314.1004147-2-linus.walleij@linaro.org Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-08-22watchdog: mediatek: mt8195: add wdt supportChristine Zhu
Support MT8195 watchdog device. Signed-off-by: Christine Zhu <Christine.Zhu@mediatek.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Tzung-Bi Shih <tzungbi@google.com> Link: https://lore.kernel.org/r/20210726122901.12195-4-Christine.Zhu@mediatek.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-08-22watchdog: tqmx86: Constify static struct watchdog_opsRikard Falkeborn
The struct tqmx86_wdt_ops is only assigned to the ops pointer in the watchdog_device struct, which is a pointer to const struct watchdog_ops. Make it const to allow the compiler to put it in read-only memory. Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20210727223042.48150-3-rikard.falkeborn@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-08-22watchdog: mpc8xxx_wdt: Constify static struct watchdog_opsRikard Falkeborn
The struct mpc8xxx_wdt_ops is only assigned to the ops pointer in the watchdog_device struct, which is a pointer to const struct watchdog_ops. Make it const to allow the compiler to put it in read-only memory. Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20210727223042.48150-4-rikard.falkeborn@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-08-22watchdog: sl28cpld_wdt: Constify static struct watchdog_opsRikard Falkeborn
The struct sl28cpld_wdt_ops is only assigned to the ops pointer in the watchdog_device struct, which is a pointer to const struct watchdog_ops. Make it const to allow the compiler to put it in read-only memory. Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20210727223042.48150-2-rikard.falkeborn@gmail.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-08-22watchdog: iTCO_wdt: Fix detection of SMI-off caseJan Kiszka
Obviously, the test needs to run against the register content, not its address. Fixes: cb011044e34c ("watchdog: iTCO_wdt: Account for rebooting on second timeout") Cc: stable@vger.kernel.org Reported-by: Mantas Mikulėnas <grawity@gmail.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Tested-by: Mantas Mikulėnas <grawity@gmail.com> Link: https://lore.kernel.org/r/d84f8e06-f646-8b43-d063-fb11f4827044@siemens.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-08-22watchdog: bcm2835_wdt: consider system-power-controller propertyStefan Wahren
Until now all Raspberry Pi boards used the power off function of the SoC. But the Raspberry Pi 400 uses gpio-poweroff for the whole board which possibly cannot register the poweroff handler because the it's already registered by this watchdog driver. So consider the system-power-controller property for registering, which is already defined in soc/bcm/brcm,bcm2835-pm.txt . Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by: Nicolas Saenz Julienne <nsaenz@kernel.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/1622981777-5023-3-git-send-email-stefan.wahren@i2se.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-08-22watchdog: imx2_wdg: notify wdog core to stop ping worker on suspendGrzegorz Jaszczyk
Suspend routine disables wdog clk. Nevertheless, the watchdog subsystem is not aware of that and can still try to ping wdog through watchdog_ping_work. In order to prevent such condition and therefore prevent from system hang (caused by the wdog register access issued while the wdog clock is disabled) notify watchdog core that the ping worker should be canceled during watchdog core suspend and restored during resume. Signed-off-by: Michal Koziel <michal.koziel@emlogic.no> Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20210618195033.3209598-3-grzegorz.jaszczyk@linaro.org Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-08-22watchdog: introduce watchdog_dev_suspend/resumeGrzegorz Jaszczyk
The watchdog drivers often disable wdog clock during suspend and then enable it again during resume. Nevertheless the ping worker is still running and can issue low-level ping while the wdog clock is disabled causing the system hang. To prevent such condition register pm notifier in the watchdog core which will call watchdog_dev_suspend/resume and actually cancel ping worker during suspend and restore it back, if needed, during resume. Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20210618195033.3209598-2-grzegorz.jaszczyk@linaro.org Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-08-22watchdog: Fix NULL pointer dereference when releasing cdevCurtis Klein
watchdog_hrtimer_pretimeout_stop needs the watchdog device to have a valid pointer to the watchdog core data to stop the pretimeout hrtimer. Therefore it needs to be called before the pointers are cleared in watchdog_cdev_unregister. Fixes: 7b7d2fdc8c3e ("watchdog: Add hrtimer-based pretimeout feature") Reported-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Curtis Klein <curtis.klein@hpe.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/1624429583-5720-1-git-send-email-curtis.klein@hpe.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-08-22watchdog: only run driver set_pretimeout op if device supports itCurtis Klein
Some watchdog devices might conditionally support pretimeouts (e.g. if an interrupt is exposed for the device) but some watchdog drivers might still define the set_pretimeout operation (e.g. the mtk_wdt driver) and indicate support at runtime through the WDIOF_PRETIMEOUT flag. If the kernel is compiled with CONFIG_WATCHDOG_HRTIMER_PRETIMEOUT enabled, watchdog_set_pretimeout would run the driver specific set_pretimeout even if WDIOF_PRETIMEOUT is not set which might have unintended consequences. So this change checks that the device flags and only runs the driver operation if pretimeouts are supported. Signed-off-by: Curtis Klein <curtis.klein@hpe.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/1624751265-24785-1-git-send-email-curtis.klein@hpe.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-08-22watchdog: bd70528 drop bd70528 supportMatti Vaittinen
The only known BD70528 use-cases are such that the PMIC is controlled from separate MCU which is not running Linux. I am not aware of any Linux driver users. Furthermore, it seems there is no demand for this IC. Let's ease the maintenance burden and drop the driver. We can always add it back if there is sudden need for it. Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/994d2e374262c3f59f4465c03ef23d3116120778.1621937490.git.matti.vaittinen@fi.rohmeurope.com Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2021-08-21brcmsmac: make array addr static const, makes object smallerColin Ian King
Don't populate the array addr on the stack but instead it static const. Makes the object code smaller by 79 bytes: Before: text data bss dec hex filename 176015 54652 128 230795 3858b .../broadcom/brcm80211/brcmsmac/main.o After: text data bss dec hex filename 175872 54716 128 230716 3853c .../broadcom/brcm80211/brcmsmac/main.o (gcc version 10.3.0) Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20210819125552.8888-1-colin.king@canonical.com
2021-08-21rtw88: Remove unnecessary check codeLen Baker
The rtw_pci_init_rx_ring function is only ever called with a fixed constant or RTK_MAX_RX_DESC_NUM for the "len" argument. Since this constant is defined as 512, the "if (len > TRX_BD_IDX_MASK)" check can never happen (TRX_BD_IDX_MASK is defined as GENMASK(11, 0) or in other words as 4095). So, remove this check. The true motivation for this patch is to silence a false Coverity warning. Reviewed-by: Brian Norris <briannorris@chromium.org> Signed-off-by: Len Baker <len.baker@gmx.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20210731163546.10753-1-len.baker@gmx.com
2021-08-21rtw88: wow: fix size access error of probe requestChin-Yen Lee
Current flow will lead to null ptr access because of trying to get the size of freed probe-request packets. We store the information of packet size into rsvd page instead and also fix the size error issue, which will cause unstable behavoir of sending probe request by wow firmware. Signed-off-by: Chin-Yen Lee <timlee@realtek.com> Signed-off-by: Ping-Ke Shih <pkshih@realtek.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20210728014335.8785-6-pkshih@realtek.com
generated by cgit (git 2.34.1) at 2025-09-23 01:16:14 +0000