- 04 Oct, 2023 13 commits
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Fabio Estevam authored
The imx8dl FEC has the same programming model as the one on the imx8qxp. Add the imx8dl compatible string. Signed-off-by:
Fabio Estevam <festevam@denx.de> Acked-by:
Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20230926111017.320409-1-festevam@gmail.comSigned-off-by:
Jakub Kicinski <kuba@kernel.org>
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Jacob Keller authored
The recent support for DPLL introduced by commit 8a3a565f ("ice: add admin commands to access cgu configuration") and commit d7999f5e ("ice: implement dpll interface to control cgu") broke linking the ice driver if CONFIG_PTP_1588_CLOCK=n: ld: vmlinux.o: in function `ice_init_feature_support': (.text+0x8702b8): undefined reference to `ice_is_phy_rclk_present' ld: (.text+0x8702cd): undefined reference to `ice_is_cgu_present' ld: (.text+0x8702d9): undefined reference to `ice_is_clock_mux_present_e810t' ld: vmlinux.o: in function `ice_dpll_init_info_direct_pins': ice_dpll.c:(.text+0x894167): undefined reference to `ice_cgu_get_pin_freq_supp' ld: ice_dpll.c:(.text+0x894197): undefined reference to `ice_cgu_get_pin_name' ld: ice_dpll.c:(.text+0x8941a8): undefined reference to `ice_cgu_get_pin_type' ld: vmlinux.o: in function `ice_dpll_update_state': ice_dpll.c:(.text+0x894494): undefined reference to `ice_get_cgu_state' ld: vmlinux.o: in function `ice_dpll_init': (.text+0x8953d5): undefined reference to `ice_get_cgu_rclk_pin_info' The first commit broke things by calling functions in ice_init_feature_support that are compiled as part of ice_ptp_hw.o, including: * ice_is_phy_rclk_present * ice_is_clock_mux_present_e810t * ice_is_cgU_present The second commit continued the break by calling several CGU functions defined in ice_ptp_hw.c in the DPLL code. Because the ice_dpll.c file is compiled unconditionally, it will not link when CONFIG_PTP_1588_CLOCK=n. It might be possible to break this dependency and expose those functions without CONFIG_PTP_1588_CLOCK, but that is not clear to me. For the DPLL case, simply compile ice_dpll.o only when we have CONFIG_PTP_1588_CLOCK. Add stub no-op implementation of ice_dpll_init() and ice_dpll_uninit() when CONFIG_PTP_1588_CLOCK=n into ice_dpll.h The other functions are part of checking the netlist to see if hardware features are enabled. These checks don't really belong in ice_ptp_hw.c, and make more sense as part of the ice_common.c file. We already have ice_is_gps_in_netlist() in ice_common.c which is doing a similar check. Move the functions into ice_common.c and rename them to have the similar postfix of "in_netlist()" to be more expressive of what they are actually checking. This also makes the ice_find_netlist_node only called from within ice_common.c, so its safe to mark it static and stop declaring it in the ice_common.h header as well. Fixes: 8a3a565f ("ice: add admin commands to access cgu configuration") Fixes: d7999f5e ("ice: implement dpll interface to control cgu") Reported-by:
kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202309191214.TaYEct4H-lkp@intel.comSigned-off-by:
Jacob Keller <jacob.e.keller@intel.com> Reviewed-by:
Przemek Kitszel <przemyslaw.kitszel@intel.com> Signed-off-by:
Tony Nguyen <anthony.l.nguyen@intel.com> Reviewed-by:
Simon Horman <horms@kernel.org> Tested-by: Simon Horman <horms@kernel.org> # build-tested Link: https://lore.kernel.org/r/20231002185132.1575271-1-anthony.l.nguyen@intel.comSigned-off-by:
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David S. Miller authored
Michael Chan says: ==================== bnxt_en: hwmon and SRIOV updates The first 7 patches are v2 of the hwmon patches posted about 6 weeks ago on Aug 14. The last 2 patches are SRIOV related updates. Link to v1 hwmon patches: https://lore.kernel.org/netdev/20230815045658.80494-11-michael.chan@broadcom.com/ ==================== Reviewed-by:
David S. Miller <davem@davemloft.net>
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Vikas Gupta authored
Newer versions of firmware will pre-reserve 1 VNIC for every possible PF and VF function. Update the driver logic to take this into account when assigning VNICs to the VFs. These pre-reserved VNICs for the inactive VFs should be subtracted from the global pool before assigning them to the active VFs. Not doing so may cause discrepancies that ultimately may cause some VFs to have insufficient VNICs to support features such as aRFS. Signed-off-by:
Vikas Gupta <vikas.gupta@broadcom.com> Signed-off-by:
Michael Chan <michael.chan@broadcom.com> Signed-off-by:
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Sreekanth Reddy authored
Add these missing settings in the .ndo_set_vf_vlan() method. Older firmware does not support the TPID setting so check for proper support. Remove the unused BNXT_VF_QOS flag. Signed-off-by:
Sreekanth Reddy <sreekanth.reddy@broadcom.com> Signed-off-by:
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Kalesh AP authored
Newer FW will send a new async event when it detects that the chip's temperature has crossed the configured threshold value. The driver will now notify hwmon and will log a warning message. Link: https://lore.kernel.org/netdev/20230815045658.80494-13-michael.chan@broadcom.com/ Cc: Jean Delvare <jdelvare@suse.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: linux-hwmon@vger.kernel.org Signed-off-by:
Kalesh AP <kalesh-anakkur.purayil@broadcom.com> Signed-off-by:
Guenter Roeck <linux@roeck-us.net> Signed-off-by:
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Kalesh AP authored
Implement the sysfs attributes directly in the driver for shutdown threshold temperature and pass an extra attribute group to the hwmon core when registering the hwmon device. Link: https://lore.kernel.org/netdev/20230815045658.80494-12-michael.chan@broadcom.com/ Cc: Jean Delvare <jdelvare@suse.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: linux-hwmon@vger.kernel.org Reviewed-by:
Andy Gospodarek <andrew.gospodarek@broadcom.com> Signed-off-by:
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Kalesh AP authored
HWRM_TEMP_MONITOR_QUERY response now indicates various threshold temperatures. Expose these threshold temperatures through the hwmon sysfs using this mapping: hwmon_temp_max : bp->warn_thresh_temp hwmon_temp_crit : bp->crit_thresh_temp hwmon_temp_emergency : bp->fatal_thresh_temp hwmon_temp_max_alarm : temp >= bp->warn_thresh_temp hwmon_temp_crit_alarm : temp >= bp->crit_thresh_temp hwmon_temp_emergency_alarm : temp >= bp->fatal_thresh_temp Link: https://lore.kernel.org/netdev/20230815045658.80494-12-michael.chan@broadcom.com/ Cc: Jean Delvare <jdelvare@suse.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: linux-hwmon@vger.kernel.org Signed-off-by:
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Kalesh AP authored
The use of hwmon_device_register_with_groups() is deprecated. Modified the driver to use hwmon_device_register_with_info(). Driver currently exports only temp1_input through hwmon sysfs interface. But FW has been modified to report more threshold temperatures and driver want to report them through the hwmon interface. Cc: Jean Delvare <jdelvare@suse.com> Cc: Guenter Roeck <linux@roeck-us.net> Cc: linux-hwmon@vger.kernel.org Signed-off-by:
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Kalesh AP authored
This is in preparation for upcoming patches in the series. Driver has to expose more threshold temperatures through the hwmon sysfs interface. More code will be added and do not want to overload bnxt.c. Reviewed-by:
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Kalesh AP authored
Driver currently does hwmon device register and unregister in open and close() respectively. As a result, user will not be able to query hwmon temperature when interface is in ifdown state. Enhance it by moving the hwmon register/unregister to the probe/remove functions. Reviewed-by:
Somnath Kotur <somnath.kotur@broadcom.com> Signed-off-by:
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Michael Chan authored
The main changes are the additional thermal thresholds in hwrm_temp_monitor_query_output and the new async event to report thermal errors. Signed-off-by:
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Lukas Bulwahn authored
Commit 9431063a ("dpll: core: Add DPLL framework base functions") adds the section DPLL SUBSYSTEM in MAINTAINERS and includes a file entry to the non-existing file 'include/net/dpll.h'. Hence, ./scripts/get_maintainer.pl --self-test=patterns complains about a broken reference. Looking at the file stat of the commit above, this entry clearly intended to refer to 'include/linux/dpll.h'. Adjust this header file entry in DPLL SUBSYSTEM. Signed-off-by:
Lukas Bulwahn <lukas.bulwahn@gmail.com> Reviewed-by:
Vadim Fedorenko <vadim.fedorenko@linux.dev> Signed-off-by:
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- 03 Oct, 2023 27 commits
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Patrick Rohr authored
This change adds a sysctl to opt-out of RFC4862 section 5.5.3e's valid lifetime derivation mechanism. RFC4862 section 5.5.3e prescribes that the valid lifetime in a Router Advertisement PIO shall be ignored if it less than 2 hours and to reset the lifetime of the corresponding address to 2 hours. An in-progress 6man draft (see draft-ietf-6man-slaac-renum-07 section 4.2) is currently looking to remove this mechanism. While this draft has not been moving particularly quickly for other reasons, there is widespread consensus on section 4.2 which updates RFC4862 section 5.5.3e. Cc: Maciej Żenczykowski <maze@google.com> Cc: Lorenzo Colitti <lorenzo@google.com> Cc: Jen Linkova <furry@google.com> Signed-off-by:
Patrick Rohr <prohr@google.com> Reviewed-by:
Jiri Pirko <jiri@nvidia.com> Reviewed-by:
David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/r/20230925214711.959704-1-prohr@google.comSigned-off-by:
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Jakub Kicinski authored
Bagas Sanjaya says: ==================== Documentation fixes for dpll subsystem Here is a mini docs fixes for dpll subsystem. The fixes are all code block-related. This series is triggered because I was emailed by kernel test robot, alerting htmldocs warnings (see patch [1/2]). [1]: https://lore.kernel.org/all/20230918093240.29824-1-bagasdotme@gmail.com/ ==================== Link: https://lore.kernel.org/r/20230928052708.44820-1-bagasdotme@gmail.comSigned-off-by:
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Bagas Sanjaya authored
DPLL_CMD_PIN_GET netlink command output for mux-type pins looks ugly with normal paragraph formatting. Format it as a code block instead. Signed-off-by:
Bagas Sanjaya <bagasdotme@gmail.com> Acked-by:
Randy Dunlap <rdunlap@infradead.org> Tested-by:
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Bagas Sanjaya authored
kernel test robot and Stephen Rothwell report htmldocs warnings: Documentation/driver-api/dpll.rst:427: WARNING: Error in "code-block" directive: maximum 1 argument(s) allowed, 18 supplied. .. code-block:: c <snipped>... Documentation/driver-api/dpll.rst:444: WARNING: Error in "code-block" directive: maximum 1 argument(s) allowed, 21 supplied. .. code-block:: c <snipped>... Documentation/driver-api/dpll.rst:474: WARNING: Error in "code-block" directive: maximum 1 argument(s) allowed, 12 supplied. .. code-block:: c <snipped>... Fix these above by adding missing blank line separator after code-block directive. Reported-by:
Stephen Rothwell <sfr@canb.auug.org.au> Closes: https://lore.kernel.org/linux-next/20230918131521.155e9e63@canb.auug.org.au/ Fixes: dbb291f1 ("dpll: documentation on DPLL subsystem interface") Signed-off-by:
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Jakub Kicinski authored
Przemek Kitszel says: ==================== introduce DEFINE_FLEX() macro Add DEFINE_FLEX() macro, that helps on-stack allocation of structures with trailing flex array member. Expose __struct_size() macro which reads size of data allocated by DEFINE_FLEX(). Accompany new macros introduction with actual usage, in the ice driver - hence targeting for netdev tree. Obvious benefits include simpler resulting code, less heap usage, less error checking. Less obvious is the fact that compiler has more room to optimize, and as a whole, even with more stuff on the stack, we end up with overall better (smaller) report from bloat-o-meter: add/remove: 8/6 grow/shrink: 7/18 up/down: 2211/-2270 (-59) (individual results in each patch). ==================== Link: https://lore.kernel.org/r/20230912115937.1645707-1-przemyslaw.kitszel@intel.comSigned-off-by:
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Przemek Kitszel authored
Use DEFINE_FLEX() macro for 1-elem flex array members of ice_switch.c Signed-off-by:
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Przemek Kitszel authored
Use DEFINE_FLEX() macro for 1-elem flex array use case of struct ice_aqc_dis_txq_item. Signed-off-by:
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Przemek Kitszel authored
Use DEFINE_FLEX() macro for 1-elem flex array use case of struct ice_aqc_add_tx_qgrp. Signed-off-by:
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Przemek Kitszel authored
Use DEFINE_FLEX() macro for constant-num-of-elems (4) flex array members of ice_ddp.c Signed-off-by:
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Przemek Kitszel authored
Remove two arguments of ice_aq_move_sched_elems(). Last of them was always NULL, and @grps_req was always 1. Assuming @grps_req to be one, allows us to use DEFINE_FLEX() macro, what removes some need for heap allocations. Signed-off-by:
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Przemek Kitszel authored
Replace array+size params of ice_sched_remove_elems:() by just single u32, as all callers are using it with "1". This enables moving from heap-based, to stack-based allocation, what is also more elegant thanks to DEFINE_FLEX() macro. Signed-off-by:
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Przemek Kitszel authored
Add DEFINE_FLEX() macro for on-stack allocations of structs with flexible array member. Expose __struct_size() macro outside of fortify-string.h, as it could be used to read size of structs allocated by DEFINE_FLEX(). Move __member_size() alongside it. -Kees Using underlying array for on-stack storage lets us to declare known-at-compile-time structures without kzalloc(). Actual usage for ice driver is in following patches of the series. Missing __has_builtin() workaround is moved up to serve also assembly compilation with m68k-linux-gcc, see [1]. Error was (note the .S file extension): In file included from ../include/linux/linkage.h:5, from ../arch/m68k/fpsp040/skeleton.S:40: ../include/linux/compiler_types.h:331:5: warning: "__has_builtin" is not defined, evaluates to 0 [-Wundef] 331 | #if __has_builtin(__builtin_dynamic_object_size) | ^~~~~~~~~~~~~ ../include/linux/compiler_types.h:331:18: error: missing binary operator before token "(" 331 | #if __has_builtin(__builtin_dynamic_object_size) | ^ [1] https://lore.kernel.org/netdev/202308112122.OuF0YZqL-lkp@intel.com/Co-developed-by:Kees Cook <keescook@chromium.org> Signed-off-by:
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Jakub Kicinski authored
Sebastian Andrzej Siewior says: ==================== bpf: Remove xdp_do_flush_map(). I had #1 split in several patches per vendor and then decided to merge it. I can repost it with one patch per vendor if this preferred. ==================== Link: https://lore.kernel.org/r/20230908143215.869913-1-bigeasy@linutronix.deSigned-off-by:
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Sebastian Andrzej Siewior authored
xdp_do_flush_map() can be removed because there is no more user in tree. Remove xdp_do_flush_map(). Signed-off-by:
Sebastian Andrzej Siewior <bigeasy@linutronix.de> Acked-by:
Toke Høiland-Jørgensen <toke@redhat.com> Acked-by:
Jesper Dangaard Brouer <hawk@kernel.org> Link: https://lore.kernel.org/r/20230908143215.869913-3-bigeasy@linutronix.deSigned-off-by:
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Sebastian Andrzej Siewior authored
xdp_do_flush_map() is deprecated and new code should use xdp_do_flush() instead. Replace xdp_do_flush_map() with xdp_do_flush(). Cc: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Cc: Clark Wang <xiaoning.wang@nxp.com> Cc: Claudiu Manoil <claudiu.manoil@nxp.com> Cc: David Arinzon <darinzon@amazon.com> Cc: Edward Cree <ecree.xilinx@gmail.com> Cc: Felix Fietkau <nbd@nbd.name> Cc: Grygorii Strashko <grygorii.strashko@ti.com> Cc: Jassi Brar <jaswinder.singh@linaro.org> Cc: Jesse Brandeburg <jesse.brandeburg@intel.com> Cc: John Crispin <john@phrozen.org> Cc: Leon Romanovsky <leon@kernel.org> Cc: Lorenzo Bianconi <lorenzo@kernel.org> Cc: Louis Peens <louis.peens@corigine.com> Cc: Marcin Wojtas <mw@semihalf.com> Cc: Mark Lee <Mark-MC.Lee@mediatek.com> Cc: Matthias Brugger <matthias.bgg@gmail.com> Cc: NXP Linux Team <linux-imx@nxp.com> Cc: Noam Dagan <ndagan@amazon.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Saeed Bishara <saeedb@amazon.com> Cc: Saeed Mahameed <saeedm@nvidia.com> Cc: Sean Wang <sean.wang@mediatek.com> Cc: Shay Agroskin <shayagr@amazon.com> Cc: Shenwei Wang <shenwei.wang@nxp.com> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Cc: Tony Nguyen <anthony.l.nguyen@intel.com> Cc: Vladimir Oltean <vladimir.oltean@nxp.com> Cc: Wei Fang <wei.fang@nxp.com> Signed-off-by:
Arthur Kiyanovski <akiyano@amazon.com> Acked-by:
Ilias Apalodimas <ilias.apalodimas@linaro.org> Acked-by:
Martin Habets <habetsm.xilinx@gmail.com> Acked-by:
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Dan Carpenter authored
The vcap_decode_rule() never returns NULL. There is no need to check for that. This code assumes that if it did return NULL we should end abruptly and return success. It is confusing. Fix the check to just be if (IS_ERR()) instead of if (IS_ERR_OR_NULL()). Reported-by:
Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by:
Daniel Machon <daniel.machon@microchip.com> Link: https://lore.kernel.org/r/b88eba86-9488-4749-a896-7c7050132e7b@moroto.mountainSigned-off-by:
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Paolo Abeni authored
Lukasz Majewski says: ==================== net: dsa: hsr: Enable HSR HW offloading for KSZ9477 This patch series provides support for HSR HW offloading in KSZ9477 switch IC. To test this feature: ip link add name hsr0 type hsr slave1 lan1 slave2 lan2 supervision 45 version 1 ip link set dev lan1 up ip link set dev lan2 up ip a add 192.168.0.1/24 dev hsr0 ip link set dev hsr0 up To remove HSR network device: ip link del hsr0 To test if one can adjust MAC address: ip link set lan2 address 00:01:02:AA:BB:CC It is also possible to create another HSR interface, but it will only support HSR is software - e.g. ip link add name hsr1 type hsr slave1 lan3 slave2 lan4 supervision 45 version 1 Test HW: Two KSZ9477-EVB boards with HSR ports set to "Port1" and "Port2". Performance SW used: nuttcp -S --nofork nuttcp -vv -T 60 -r 192.168.0.2 nuttcp -vv -T 60 -t 192.168.0.2 Code: v6.6.0-rc2+ Linux net-next repository SHA1: 5a1b322c Tested HSR v0 and v1 Results: With KSZ9477 offloading support added: RX: 100 Mbps TX: 98 Mbps With no offloading RX: 63 Mbps TX: 63 Mbps ==================== Link: https://lore.kernel.org/r/20230922133108.2090612-1-lukma@denx.deSigned-off-by:
Paolo Abeni <pabeni@redhat.com>
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Lukasz Majewski authored
This patch adds functions for providing in KSZ9477 switch HSR (High-availability Seamless Redundancy) hardware offloading. According to AN3474 application note following features are provided: - TX packet duplication from host to switch (NETIF_F_HW_HSR_DUP) - RX packet duplication discarding - Prevention of packet loop For last two ones - there is a probability that some packets will not be filtered in HW (in some special cases - described in AN3474). Hence, the HSR core code shall be used to discard those not caught frames. Moreover, some switch registers adjustments are required - like setting MAC address of HSR network interface. Additionally, the KSZ9477 switch has been configured to forward frames between HSR ports (e.g. 1,2) members to provide support for NETIF_F_HW_HSR_FWD flag. Join and leave functions are written in a way, that are executed with single port - i.e. configuration is NOT done only when second HSR port is configured. Co-developed-by:
Vladimir Oltean <vladimir.oltean@nxp.com> Signed-off-by:
Lukasz Majewski <lukma@denx.de> Reviewed-by:
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Vladimir Oltean authored
Defining macros which have the same name but different values is bad practice, because it makes it hard to avoid code duplication. The same code does different things, depending on the file it's placed in. Case in point, we want to access REG_SW_MAC_ADDR from ksz_common.c, but currently we can't, because we don't know which kszXXXX_reg.h to include from the common code. Remove the REG_SW_MAC_ADDR_{0..5} macros from ksz8795_reg.h and ksz9477_reg.h, and re-add this register offset to the dev->info->regs[] array. Signed-off-by:Florian Fainelli <florian.fainelli@broadcom.com> Reviewed-by:
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Lukasz Majewski authored
The KSZ9477 has support for HSR (High-Availability Seamless Redundancy). One of its offloading (i.e. performed in the switch IC hardware) features is to duplicate received frame to both HSR aware switch ports. To achieve this goal - the tail TAG needs to be modified. To be more specific, both ports must be marked as destination (egress) ones. The NETIF_F_HW_HSR_DUP flag indicates that the device supports HSR and assures (in HSR core code) that frame is sent only once from HOST to switch with tail tag indicating both ports. Signed-off-by:
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Vladimir Oltean authored
In some cases, drivers may need to veto the changing of a MAC address on a user port. Such is the case with KSZ9477 when it offloads a HSR device, because it programs the MAC address of multiple ports to a shared hardware register. Those ports need to have equal MAC addresses for the lifetime of the HSR offload. Signed-off-by:
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Vladimir Oltean authored
Drivers can provide meaningful error messages which state a reason why they can't perform an offload, and dsa_slave_changeupper() already has the infrastructure to propagate these over netlink rather than printing to the kernel log. So pass the extack argument and modify the xrs700x driver's port_hsr_join() prototype. Also take the opportunity and use the extack for the 2 -EOPNOTSUPP cases from xrs700x_hsr_join(). Signed-off-by:
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Raju Lakkaraju authored
Add a quirk for a copper SFP that identifies itself as "FS" "SFP-2.5G-T". This module's PHY is inaccessible, and can only run at 2500base-X with the host without negotiation. Add a quirk to enable the 2500base-X interface mode with 2500base-T support and disable auto negotiation. Signed-off-by:
Raju Lakkaraju <Raju.Lakkaraju@microchip.com> Link: https://lore.kernel.org/r/20230925080059.266240-1-Raju.Lakkaraju@microchip.comSigned-off-by:
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Beniamino Galvani authored
The function doesn't modify the addresses passed as input, mark them as 'const' to make that clear. Signed-off-by:
Beniamino Galvani <b.galvani@gmail.com> Reviewed-by:
Guillaume Nault <gnault@redhat.com> Link: https://lore.kernel.org/r/20230924153014.786962-1-b.galvani@gmail.comSigned-off-by:
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Linus Walleij authored
The Altima AC101L is obviously compatible with the AMD PHY, as seen by reading the datasheet. Datasheet: https://docs.broadcom.com/doc/AC101L-DS05-405-RDS.pdfSigned-off-by:
Linus Walleij <linus.walleij@linaro.org> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/20230924-ac101l-phy-v1-1-5e6349e28aa4@linaro.orgSigned-off-by:
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Christophe JAILLET authored
'n_tables' is small, UDP_TUNNEL_NIC_MAX_TABLES = 4 as a maximum. So there is no real point to allocate the 'entries' pointers array with a dedicate memory allocation. Using a flexible array for struct udp_tunnel_nic->entries avoids the overhead of an additional memory allocation. This also saves an indirection when the array is accessed. Finally, __counted_by() can be used for run-time bounds checking if configured and supported by the compiler. Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by:
Willem de Bruijn <willemb@google.com> Link: https://lore.kernel.org/r/4a096ba9cf981a588aa87235bb91e933ee162b3d.1695542544.git.christophe.jaillet@wanadoo.frSigned-off-by:
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Linus Walleij authored
As we don't specify the MTU in the driver, the framework will fall back to 1500 bytes and this doesn't work very well when we try to attach a DSA switch: eth1: mtu greater than device maximum ixp4xx_eth c800a000.ethernet eth1: error -22 setting MTU to 1504 to include DSA overhead I checked the developer docs and the hardware can actually do really big frames, so update the driver accordingly. Signed-off-by:
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