- 04 Feb, 2021 14 commits
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Danielle Ratson authored
Currently, when user space queries the link's parameters, as speed and duplex, each parameter is passed from the driver to ethtool. Instead, get the link mode bit in use, and derive each of the parameters from it in ethtool. Signed-off-by:
Danielle Ratson <danieller@nvidia.com> Signed-off-by:
Jakub Kicinski <kuba@kernel.org>
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Danielle Ratson authored
Currently, when auto negotiation is on, the user can advertise all the linkmodes which correspond to a specific speed, but does not have a similar selector for the number of lanes. This is significant when a specific speed can be achieved using different number of lanes. For example, 2x50 or 4x25. Add 'ETHTOOL_A_LINKMODES_LANES' attribute and expand 'struct ethtool_link_settings' with lanes field in order to implement a new lanes-selector that will enable the user to advertise a specific number of lanes as well. When auto negotiation is off, lanes parameter can be forced only if the driver supports it. Add a capability bit in 'struct ethtool_ops' that allows ethtool know if the driver can handle the lanes parameter when auto negotiation is off, so if it does not, an error message will be returned when trying to set lanes. Example: $ ethtool -s swp1 lanes 4 $ ethtool swp1 Settings for swp1: Supported ports: [ FIBRE ] Supported link modes: 1000baseKX/Full 10000baseKR/Full 40000baseCR4/Full 40000baseSR4/Full 40000baseLR4/Full 25000baseCR/Full 25000baseSR/Full 50000baseCR2/Full 100000baseSR4/Full 100000baseCR4/Full Supported pause frame use: Symmetric Receive-only Supports auto-negotiation: Yes Supported FEC modes: Not reported Advertised link modes: 40000baseCR4/Full 40000baseSR4/Full 40000baseLR4/Full 100000baseSR4/Full 100000baseCR4/Full Advertised pause frame use: No Advertised auto-negotiation: Yes Advertised FEC modes: Not reported Speed: Unknown! Duplex: Unknown! (255) Auto-negotiation: on Port: Direct Attach Copper PHYAD: 0 Transceiver: internal Link detected: no Signed-off-by: -
Danielle Ratson authored
Create a new function for input validations to be called before rtnl_lock() and move the master slave validation to that function. This would be a cleanup for next patch that would add another validation to the new function. Signed-off-by:
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Vladimir Oltean authored
The bridge emits VLAN filtering events and quite a few others via switchdev with orig_dev = br->dev. After the blamed commit, these events started getting ignored. The point of the patch was to not offload switchdev objects for ports that didn't go through dsa_port_bridge_join, because the configuration is unsupported: - ports that offload a bonding/team interface go through dsa_port_bridge_join when that bonding/team interface is later bridged with another switch port or LAG - ports that don't offload LAG don't get notified of the bridge that is on top of that LAG. Sadly, a check is missing, which is that the orig_dev is equal to the bridge device. This check is compatible with the original intention, because ports that don't offload bridging because they use a software LAG don't have dp->bridge_dev set. On a semi-related note, we should not offload switchdev objects or populate dp->bridge_dev if the driver doesn't implement .port_bridge_join either. However there is no regression associated with that, so it can be done separately. Fixes: 5696c8ae ("net: dsa: Don't offload port attributes on standalone ports") Signed-off-by:
Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by:
Tobias Waldekranz <tobias@waldekranz.com> Tested-by:
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Jakub Kicinski authored
Sebastian Andrzej Siewior says: ==================== chelsio: cxgb: Use threaded interrupts for deferred work Patch #2 fixes an issue in which del_timer_sync() and tasklet_kill() is invoked from the interrupt handler. This is probably a rare error case since it disables interrupts / the card in that case. Patch #1 converts a worker to use a threaded interrupt which is then also used in patch #2 instead adding another worker for this task (and flush_work() to synchronise vs rmmod). ==================== Link: https://lore.kernel.org/r/20210202170104.1909200-1-bigeasy@linutronix.deSigned-off-by:
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Sebastian Andrzej Siewior authored
t1_fatal_err() is invoked from the interrupt handler. The bad part is that it invokes (via t1_sge_stop()) del_timer_sync() and tasklet_kill(). Both functions must not be called from an interrupt because it is possible that it will wait for the completion of the timer/tasklet it just interrupted. In case of a fatal error, use t1_interrupts_disable() to disable all interrupt sources and then wake the interrupt thread with F_PL_INTR_SGE_ERR as pending flag. The threaded-interrupt will stop the card via t1_sge_stop() and not re-enable the interrupts again. Signed-off-by:
Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by:
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Sebastian Andrzej Siewior authored
The external interrupt (F_PL_INTR_EXT) needs to be handled in a process context and this is accomplished by utilizing a workqueue. The process context can also be provided by a threaded interrupt instead of a workqueue. The threaded interrupt can be used later for other interrupt related processing which require non-atomic context without using yet another workqueue. free_irq() also ensures that the thread is done which is currently missing (the worker could continue after the module has been removed). Save pending flags in pending_thread_intr. Use the same mechanism to disable F_PL_INTR_EXT as interrupt source like it is used before the worker is scheduled. Enable the interrupt again once t1_elmer0_ext_intr_handler() is done. Signed-off-by:
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Jakub Kicinski authored
Srujana Challa says: ==================== Support for OcteonTX2 98xx CPT block. OcteonTX2 series of silicons have multiple variants, the 98xx variant has two crypto (CPT) blocks to double the crypto performance. This patchset adds support for new CPT block(CPT1). ==================== Link: https://lore.kernel.org/r/20210202152709.20450-1-schalla@marvell.comSigned-off-by:
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Srujana Challa authored
When FLR is initiated for a VF (PCI function level reset), the parent PF gets a interrupt. PF then sends a message to admin function (AF), which then cleans up all resources attached to that VF. This patch adds support to handle CPT FLR. Signed-off-by:
Narayana Prasad Raju Atherya <pathreya@marvell.com> Signed-off-by:
Suheil Chandran <schandran@marvell.com> Signed-off-by:
Sunil Kovvuri Goutham <sgoutham@marvell.com> Signed-off-by:
Srujana Challa <schalla@marvell.com> Signed-off-by:
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Srujana Challa authored
Adds support to display block CPT1 stats at "/sys/kernel/debug/octeontx2/cpt1". Signed-off-by:
Mahipal Challa <mchalla@marvell.com> Signed-off-by:
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Srujana Challa authored
This patch changes CPT mailbox message format to support new block CPT1 in 98xx silicon. cpt_rd_wr_reg -> Modify cpt_rd_wr_reg mailbox and its handler to accommodate new block CPT1. cpt_lf_alloc -> Modify cpt_lf_alloc mailbox and its handler to configure LFs from a block address out of multiple blocks of same type. If a PF/VF needs to configure LFs from both the blocks then this mbox should be called twice. Signed-off-by: -
Mike Looijmans authored
The mdio_bus reset code first de-asserted the reset by allocating with GPIOD_OUT_LOW, then asserted and de-asserted again. In other words, if the reset signal defaulted to asserted, there'd be a short "spike" before the reset. Here is what happens depending on the pre-existing state of the reset signal: Reset (previously asserted): ~~~|_|~~~~|_______ Reset (previously deasserted): _____|~~~~|_______ ^ ^ ^ A B C At point A, the low going transition is because the reset line is requested using GPIOD_OUT_LOW. If the line is successfully requested, the first thing we do is set it high _without_ any delay. This is point B. So, a glitch occurs between A and B. We then fsleep() and finally set the GPIO low at point C. Requesting the line using GPIOD_OUT_HIGH eliminates the A and B transitions. Instead we get: Reset (previously asserted) : ~~~~~~~~~~|______ Reset (previously deasserted): ____|~~~~~|______ ^ ^ A C Where A and C are the points described above in the code. Point B has been eliminated. The issue was found when we pulled down the reset signal for the Marvell 88E1512P PHY (because it requires at least 50ms after POR with an active clock). Looking at the reset signal with a scope revealed a short spike, point B in the artwork above. Signed-off-by:Mike Looijmans <mike.looijmans@topic.nl> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Link: https://lore.kernel.org/r/20210202143239.10714-1-mike.looijmans@topic.nlSigned-off-by:
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Dan Carpenter authored
Probe should return an error code if platform_get_irq_byname() fails but it returns success instead. Fixes: 6c30384e ("net: mscc: ocelot: register devlink ports") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by:
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Dan Carpenter authored
There are several error handling bugs in mscc_ocelot_init_ports(). I went through the code, and carefully audited it and made fixes and cleanups. 1) The ocelot_probe_port() function didn't have a mirror release function so it was hard to follow. I created the ocelot_release_port() function. 2) In the ocelot_probe_port() function, if the register_netdev() call failed, then it lead to a double free_netdev(dev) bug. Fix this by setting "ocelot->ports[port] = NULL" on the error path. 3) I was concerned that the "port" which comes from of_property_read_u32() might be out of bounds so I added a check for that. 4) In the original code if ocelot_regmap_init() failed then the driver tried to continue but I think that should be a fatal error. 5) If ocelot_probe_port() failed then the most recent devlink was leaked. The fix for mostly came Vladimir Oltean. Get rid of "registered_ports" and just set a bit in "devlink_ports_registered" to say when the devlink port has been registered (and needs to be unregistered on error). There are fewer than 32 ports so a u32 is large enough for this purpose. 6) The error handling if the final ocelot_port_devlink_init() failed had two problems. The "while (port-- >= 0)" loop should have been "--port" pre-op instead of a post-op to avoid a buffer underflow. The "if (!registered_ports[port])" condition was reversed leading to resource leaks and double frees. Fixes: 6c30384e ("net: mscc: ocelot: register devlink ports") Signed-off-by:
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- 03 Feb, 2021 26 commits
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Jakub Kicinski authored
Brian Vazquez says: ==================== net: use INDIRECT_CALL in some dst_ops This patch series uses the INDIRECT_CALL wrappers in some dst_ops functions to mitigate retpoline costs. Benefits depend on the platform as described below. Background: The kernel rewrites the retpoline code at __x86_indirect_thunk_r11 depending on the CPU's requirements. The INDIRECT_CALL wrappers provide hints on possible targets and save the retpoline overhead using a direct call in case the target matches one of the hints. The retpoline overhead for the following three cases has been measured by Luigi Rizzo in microbenchmarks, using CPU performance counters, and cover reasonably well the range of possible retpoline overheads compared to a plain indirect call (in equal conditions, specifically with predicted branch, hot cache): - just "jmp *(%r11)" on modern platforms like Intel Cascadelake. In this case the overhead is just 2 clock cycles: - "lfence; jmp *(%r11)" on e.g. some recent AMD CPUs. In this case the lfence is blocked until pending reads complete, so the actual overhead depends on previous instructions. The best case we have measured 15 clock cycles of overhead. - worst case, e.g. skylake, the full retpoline is used __x86_indirect_thunk_r11: call set_u_target capture_speculation: pause lfence jmp capture_speculation .align 16 set_up_target: mov %r11, (%rsp) ret In this case the overhead has been measured in 35-40 clock cycles. The actual time saved hence depends on the platform and current clock speed (which varies heavily, especially when C-states are active). Also note that actual benefit might be lower than expected if the longer retpoline overlaps with some pending memory read. MEASUREMENTS: The INDIRECT_CALL wrappers in this patchset involve the processing of incoming SYN and generation of syncookies. Hence, the test has been run by configuring a receiving host with a single NIC rx queue, disabling RPS and RFS so that all processing occurs on the same core. An external source generates SYN fast enough to saturate the receiving CPU. We ran two sets of experiments, with and without the dst_output patch, comparing the number of syncookies generated over a 20s period in multiple runs. Assuming the CPU is saturated, the time per packet is t = number_of_packets/total_time and if the two datasets have statistically meaningful difference, the difference in times between the two cases gives an estimate of the benefits from one INDIRECT_CALL. Here are the experimental results: Skylake Syncookies over 20s (5 tests) --------------------------------------------------- indirect 9166325 9182023 9170093 9134014 9171082 retpoline 9099308 9126350 9154841 9056377 9122376 Computing the stats on the ns_pkt = 20e6/total_packets gives the following: $ ministat -c 95 -w 70 /tmp/sk-indirect /tmp/sk-retp x /tmp/sk-indirect + /tmp/sk-retp +----------------------------------------------------------------------+ |x xx x + x + + + +| ||______M__A_______|_|____________M_____A___________________| | +----------------------------------------------------------------------+ N Min Max Median Avg Stddev x 5 2.17817e-06 2.18962e-06 2.181e-06 2.182292e-06 4.3252133e-09 + 5 2.18464e-06 2.20839e-06 2.19241e-06 2.194974e-06 8.8695958e-09 Difference at 95.0% confidence 1.2682e-08 +/- 1.01766e-08 0.581132% +/- 0.466326% (Student's t, pooled s = 6.97772e-09) This suggests a difference of 13ns +/- 10ns Our expectation from microbenchmarks was 35-40 cycles per call, but part of the gains may be eaten by stalls from pending memory reads. For Cascadelake: Cascadelake Syncookies over 20s (5 tests) --------------------------------------------------------- indirect 10339797 10297547 10366826 10378891 10384854 retpoline 10332674 10366805 10320374 10334272 10374087 Computing the stats on the ns_pkt = 20e6/total_packets gives no meaningful difference even at just 80% (this was expected): $ ministat -c 80 -w 70 /tmp/cl-indirect /tmp/cl-retp x /tmp/cl-indirect + /tmp/cl-retp +----------------------------------------------------------------------+ | x x + * x + + + x| ||______________|_M_________A_____A_______M________|___| | +----------------------------------------------------------------------+ N Min Max Median Avg Stddev x 5 1.92588e-06 1.94221e-06 1.92923e-06 1.931716e-06 6.6936746e-09 + 5 1.92788e-06 1.93791e-06 1.93531e-06 1.933188e-06 4.3734106e-09 No difference proven at 80.0% confidence ==================== Link: https://lore.kernel.org/r/20210201174132.3534118-1-brianvv@google.comSigned-off-by: -
Brian Vazquez authored
This patch avoids the indirect call for the common case: ip6_dst_check and ipv4_dst_check Signed-off-by:
Brian Vazquez <brianvv@google.com> Signed-off-by:
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Brian Vazquez authored
This patch avoids the indirect call for the common case: ip6_mtu and ipv4_mtu Signed-off-by:
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Brian Vazquez authored
This patch avoids the indirect call for the common case: ip6_output and ip_output Signed-off-by:
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Brian Vazquez authored
This patch avoids the indirect call for the common case: ip_local_deliver and ip6_input Signed-off-by:
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Emil Renner Berthing authored
This converts the driver to use the new tasklet API introduced in commit 12cc923f ("tasklet: Introduce new initialization API") It is unfortunate that we need to add a pointer to the driver context to get back to the usbnet device, but the space will be reclaimed once there are no more users of the old API left and we can remove the data value and flag from the tasklet struct. Signed-off-by:
Emil Renner Berthing <kernel@esmil.dk> Link: https://lore.kernel.org/r/20210130234637.26505-1-kernel@esmil.dkSigned-off-by:
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Geert Uytterhoeven authored
If CONFIG_M5272=y: drivers/net/ethernet/freescale/fec_main.c: In function ‘fec_restart’: drivers/net/ethernet/freescale/fec_main.c:948:6: warning: unused variable ‘val’ [-Wunused-variable] 948 | u32 val; | ^~~ drivers/net/ethernet/freescale/fec_main.c: In function ‘fec_get_mac’: drivers/net/ethernet/freescale/fec_main.c:1667:28: warning: unused variable ‘pdata’ [-Wunused-variable] 1667 | struct fec_platform_data *pdata = dev_get_platdata(&fep->pdev->dev); | ^~~~~ Fix this by moving the variable declarations inside the existing #ifdef blocks. Signed-off-by:Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by:
Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20210202130650.865023-1-geert@linux-m68k.orgSigned-off-by:
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Eric Dumazet authored
inet_gro_receive() and inet_gro_complete() are part of GRO engine which can not be modular. Similarly, inet_gso_segment() does not need to be exported, being part of GSO stack. In other words, net/ipv6/ip6_offload.o is part of vmlinux, regardless of CONFIG_IPV6. Signed-off-by:
Eric Dumazet <edumazet@google.com> Reviewed-by:
Leon Romanovsky <leonro@nvidia.com> Link: https://lore.kernel.org/r/20210202154145.1568451-1-eric.dumazet@gmail.comSigned-off-by:
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Jakub Kicinski authored
Merge tag 'mac80211-next-for-net-next-2021-02-02' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next Johannes Berg says: ==================== This time, only RTNL locking reduction fallout. - cfg80211_dev_rename() requires RTNL - cfg80211_change_iface() and cfg80211_set_encryption() require wiphy mutex (was missing in wireless extensions) - cfg80211_destroy_ifaces() requires wiphy mutex - netdev registration can fail due to notifiers, and then notifiers are "unrolled", need to handle this properly * tag 'mac80211-next-for-net-next-2021-02-02' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next: cfg80211: fix netdev registration deadlock cfg80211: call cfg80211_destroy_ifaces() with wiphy lock held wext: call cfg80211_set_encryption() with wiphy lock held wext: call cfg80211_change_iface() with wiphy lock held nl80211: call cfg80211_dev_rename() under RTNL ==================== Link: https://lore.kernel.org/r/20210202144106.38207-1-johannes@sipsolutions.netSigned-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linuxJakub Kicinski authored
Saeed Mahameed says: ==================== mlx5-updates-2021-02-01 mlx5 netdev updates: 1) Trivial refactoring ahead of the upcoming uplink representor series. 2) Increased RSS table size to 256, for better results 3) Misc. Cleanup and very trivial improvements * tag 'mlx5-updates-2021-02-01' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux: net/mlx5: DR, Avoid unnecessary csum recalculation on supporting devices net/mlx5e: CT: remove useless conversion to PTR_ERR then ERR_PTR net/mlx5e: accel, remove redundant space net/mlx5e: kTLS, Improve TLS RX workqueue scope net/mlx5e: remove h from printk format specifier net/mlx5e: Increase indirection RQ table size to 256 net/mlx5e: Enable napi in channel's activation stage net/mlx5e: Move representor neigh init into profile enable net/mlx5e: Avoid false lock depenency warning on tc_ht net/mlx5e: Move set vxlan nic info to profile init net/mlx5e: Move netif_carrier_off() out of mlx5e_priv_init() net/mlx5e: Refactor mlx5e_netdev_init/cleanup to mlx5e_priv_init/cleanup net/mxl5e: Add change profile method net/mlx5e: Separate between netdev objects and mlx5e profiles initialization ==================== Link: https://lore.kernel.org/r/20210202065457.613312-1-saeed@kernel.orgSigned-off-by:
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Jakub Kicinski authored
Mat Martineau says: ==================== mptcp: ADD_ADDR enhancements This patch series from the MPTCP tree contains enhancements and associated tests for the ADD_ADDR ("add address") MPTCP option. This option allows already-connected MPTCP peers to share additional IP addresses with each other, which can then be used to create additional subflows within those MPTCP connections. Patches 1 & 2 remove duplicated data in the per-connection path manager structure. Patches 3-6 initiate additional subflows when an address is added using the netlink path manager interface and improve ADD_ADDR signaling reliability, subject to configured limits. Self tests are also updated. Patches 7-15 add new support for optional port numbers in ADD_ADDR. This includes creating an additional in-kernel TCP listening socket for the requested port number, validating the port number when processing incoming subflow connections, including the port number in netlink interfaces, and adding some new MIBs. New self test cases are added for subflows connecting with alternate port numbers. ==================== Link: https://lore.kernel.org/r/20210201230920.66027-1-mathew.j.martineau@linux.intel.comSigned-off-by: -
Geliang Tang authored
This patch adds testcases for ADD_ADDR with port and the related MIB counters check in chk_add_nr. The output looks like this: 24 signal address with port syn[ ok ] - synack[ ok ] - ack[ ok ] add[ ok ] - echo [ ok ] - pt [ ok ] syn[ ok ] - synack[ ok ] - ack[ ok ] syn[ ok ] - ack [ ok ] 25 subflow and signal with port syn[ ok ] - synack[ ok ] - ack[ ok ] add[ ok ] - echo [ ok ] - pt [ ok ] syn[ ok ] - synack[ ok ] - ack[ ok ] syn[ ok ] - ack [ ok ] 26 remove single address with port syn[ ok ] - synack[ ok ] - ack[ ok ] add[ ok ] - echo [ ok ] - pt [ ok ] syn[ ok ] - synack[ ok ] - ack[ ok ] syn[ ok ] - ack [ ok ] rm [ ok ] - sf [ ok ] Signed-off-by:Geliang Tang <geliangtang@gmail.com> Signed-off-by:
Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by:
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Geliang Tang authored
This patch adds the mibs for ADD_ADDR with port: MPTCP_MIB_PORTADD for received ADD_ADDR suboption with a port number. MPTCP_MIB_PORTSYNRX, MPTCP_MIB_PORTSYNACKRX, MPTCP_MIB_PORTACKRX, for received MP_JOIN's SYN or SYN/ACK or ACK with a port number which is different from the msk's port number. MPTCP_MIB_MISMATCHPORTSYNRX and MPTCP_MIB_MISMATCHPORTACKRX, for received SYN or ACK MP_JOIN with a mismatched port-number. Signed-off-by:
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Geliang Tang authored
This patch adds a new argument for pm_nl_ctl tool. We can use it like this: # pm_nl_ctl add 10.0.2.1 flags signal port 10100 # pm_nl_ctl dump id 1 flags signal 10.0.2.1 10100 Signed-off-by:
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Geliang Tang authored
This patch adds MPTCP_PM_ADDR_ATTR_PORT filling and parsing in PM netlink. Signed-off-by:
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Geliang Tang authored
When dealing with the addresses list local_addr_list or anno_list, we should enable the function addresses_equal's parameter use_port. And enable it in address_zero too. Signed-off-by:
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Geliang Tang authored
This patch adds two new helpers, subflow_use_different_sport and subflow_use_different_dport, to check whether the subflow's source or destination port number is different from the msk's port number. When receiving the MP_JOIN's SYN/SYNACK/ACK, we do these port number checks and print out the different port numbers. And furthermore, when receiving the MP_JOIN's SYN/ACK, we also use a new helper mptcp_pm_sport_in_anno_list to check whether this port number is announced. If it isn't, we need to abort this connection. This patch also populates the local address's port field in local_address. Signed-off-by:
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Geliang Tang authored
This patch adds a new helper named subflow_req_create_thmac, which is extracted from subflow_token_join_request. It initializes subflow_req's local_nonce and thmac fields, those are the more expensive to populate. Signed-off-by:
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Geliang Tang authored
This patch drops the unused parameter skb in subflow_token_join_request. Signed-off-by:
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Geliang Tang authored
This patch creates a listening socket when an address with a port-number is added by PM netlink. Then binds the new port to the socket, and listens for new connections. When the address is removed or the addresses are flushed by PM netlink, release the listening socket. Signed-off-by:
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Geliang Tang authored
This patch adds testcases to create subflows or signal addresses for the newly added IPv4 or IPv6 addresses. Signed-off-by:
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Geliang Tang authored
This patch changes the removing addresses numbers to minus values, left the plus values for the adding addresses numbers. Signed-off-by:
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Geliang Tang authored
This patch changes the sending ACK conditions for the ADD_ADDR, send an ACK packet for any ADD_ADDR, not just when ipv6 addresses or port numbers are included. Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/139Acked-by:
Paolo Abeni <pabeni@redhat.com> Signed-off-by:
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Geliang Tang authored
Currently, when a new MPTCP endpoint is added, the existing MPTCP sockets are not affected. This patch implements a new function mptcp_nl_add_subflow_or_signal_addr, invoked when an address is added from PM netlink. This function traverses the MPTCP sockets list and invokes mptcp_pm_create_subflow_or_signal_addr to try to create a subflow or signal an address for the newly added address, if local constraint allows that. Closes: https://github.com/multipath-tcp/mptcp_net-next/issues/19Signed-off-by:
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Geliang Tang authored
This patch drops the per-msk values add_addr_signal_max, add_addr_accept_max, local_addr_max and subflows_max fields in struct mptcp_pm_data, uses the pernet *_max values instead. And adds four new helpers to get the pernet *_max values separately. Co-developed-by:
Matthieu Baerts <matthieu.baerts@tessares.net> Signed-off-by:
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Geliang Tang authored
This patch uses WRITE_ONCE() for all the pernet add_addr_signal_max, add_addr_accept_max, local_addr_max and subflows_max fields in struct pm_nl_pernet to avoid concurrency issues. Signed-off-by:
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