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2018-04-30liquidio: Moved common function list_delete_head to octeon_network.hIntiyaz Basha3-43/+24
Moved common function list_delete_head to octeon_network.h and renamed it to lio_list_delete_head Signed-off-by: Intiyaz Basha <intiyaz.basha@cavium.com> Acked-by: Derek Chickles <derek.chickles@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30liquidio: Moved common function if_cfg_callback to lio_core.cIntiyaz Basha4-67/+38
Moved common function if_cfg_callback to lio_core.c and renamed it to lio_if_cfg_callback. Signed-off-by: Intiyaz Basha <intiyaz.basha@cavium.com> Acked-by: Derek Chickles <derek.chickles@cavium.com> Signed-off-by: Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30net: systemport: fix spelling mistake: "asymetric" -> "asymmetric"Colin Ian King1-1/+1
Trivial fix to spelling mistake in netdev_warn warning message Signed-off-by: Colin Ian King <colin.king@canonical.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30mlx4: Don't bother using skb_tx_hash in mlx4_en_select_queueAlexander Duyck1-1/+1
The code in the fallback path has supported XDP in conjunction with the Tx traffic classification for TCs for over a year now. So instead of just calling skb_tx_hash for every packet we are better off using the fallback since that will record the Tx queue to the socket and then that can be used instead of having to recompute the hash every time. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30opa_vnic: Just use skb_get_hash instead of skb_tx_hashAlexander Duyck3-13/+12
This patch is meant to clean up how the opa_vnic is obtaining entropy from Tx packets. The code as it was written was claiming to get 16 bits of hash, but from what I can tell it was only ever actually getting 14 bits as it was limited to 0 - (2^15 - 1). It then was folding the result to get a 8 bit value for entropy. Instead of throwing away all that input I am cutting out the middle man and instead having the code call skb_get_hash directly and then folding the 32 bit value into a 8 bit value using a pair of shifts and XOR operations. Execution wise this new approach should provide more entropy and be faster since we are bypassing the reciprocal multiplication to reduce the 32b value to 16b and instead just using a shift/XOR combination. In addition we can drop the unneeded adapter value from the call to get the entropy since the netdev itself isn't even needed. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30lan78xx: Modify error messagesRaghuram Chary J1-2/+2
Modify the error messages when phy registration fails. Signed-off-by: Raghuram Chary J <raghuramchary.jallipalli@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30lan78xx: Remove DRIVER_VERSION for lan78xx driverRaghuram Chary J1-2/+0
Remove driver version info from the lan78xx driver. Signed-off-by: Raghuram Chary J <raghuramchary.jallipalli@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30lan78xx: Lan7801 Support for Fixed PHYRaghuram Chary J2-28/+77
Adding Fixed PHY support to the lan78xx driver. Signed-off-by: Raghuram Chary J <raghuramchary.jallipalli@microchip.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30net: dsa: mv88e6xxx: remove Global 2 setupVivien Didelot3-31/+0
The remaining values written to the Switch Management Register in the mv88e6xxx_g2_setup function are specific to 88E6352 and older, and are the default values anyway. Thus remove completely this function. The mv88e6xxx driver no more contains setup code to access arbitrary Global 2 registers. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30net: dsa: mv88e6xxx: move device mapping setupVivien Didelot3-32/+44
Move the Device Mapping setup out of the specific Global 2 code, into the top level device setup function. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-30net: dsa: mv88e6xxx: move trunk setupVivien Didelot3-6/+21
Move the trunking setup out of Global 2 specific setup into the top level mv88e6xxx_setup function. Note that the 88E6390 family calls this LAG instead of Trunk and supports 32 possible ID routing vectors, with LAG ID bit 4 being placed in Global 2 register 0x1D... We don't need Trunk (or LAG) IDs for the moment, thus keep it simple. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-29Merge branch 'timers-urgent-for-linus' of ↵Linus Torvalds1-1/+6
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fixes from Thomas Gleixner: "Two fixes from the timer departement: - Fix a long standing issue in the NOHZ tick code which causes RB tree corruption, delayed timers and other malfunctions. The cause for this is code which modifies the expiry time of an enqueued hrtimer. - Revert the CLOCK_MONOTONIC/CLOCK_BOOTTIME unification due to regression reports. Seems userspace _is_ relying on the documented behaviour despite our hope that it wont" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: Revert: Unify CLOCK_MONOTONIC and CLOCK_BOOTTIME tick/sched: Do not mess with an enqueued hrtimer
2018-04-28net: phy: Fix modular PHYLIB buildFlorian Fainelli2-49/+2
After commit c59530d0d5dc ("net: Move PHY statistics code into PHY library helpers") we made net/core/ethtool.c reference symbols which are part of the library which can be modular. David introduced a temporary fix with 1ecd6e8ad996 ("phy: Temporary build fix after phylib changes.") which would prevent such modularity. This is not desireable of course, so instead, just inline the functions into include/linux/phy.h to keep both options available. Fixes: c59530d0d5dc ("net: Move PHY statistics code into PHY library helpers") Fixes: 1ecd6e8ad996 ("phy: Temporary build fix after phylib changes.") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-28Merge branch 'i2c/for-current' of ↵Linus Torvalds3-8/+19
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: - two driver fixes - better parameter check for the core - Documentation updates - part of a tree-wide HAS_DMA cleanup * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: sprd: Fix the i2c count issue i2c: sprd: Prevent i2c accesses after suspend is called i2c: dev: prevent ZERO_SIZE_PTR deref in i2cdev_ioctl_rdwr() Documentation/i2c: adopt kernel commenting style in examples Documentation/i2c: sync docs with current state of i2c-tools Documentation/i2c: whitespace cleanup i2c: Remove depends on HAS_DMA in case of platform dependency
2018-04-28Merge tag 'powerpc-4.17-4' of ↵Linus Torvalds2-17/+34
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: "A bunch of fixes, mostly for existing code and going to stable. Our memory hot-unplug path wasn't flushing the cache before removing memory. That is a problem now that we are doing memory hotplug on bare metal. Three fixes for the NPU code that supports devices connected via NVLink (ie. GPUs). The main one tweaks the TLB flush algorithm to avoid soft lockups for large flushes. A fix for our memory error handling where we would loop infinitely, returning back to the bad access and hard lockup the CPU. Fixes for the OPAL RTC driver, which wasn't handling some error cases correctly. A fix for a hardlockup in the powernv cpufreq driver. And finally two fixes to our smp_send_stop(), required due to a recent change to use it on shutdown. Thanks to: Alistair Popple, Balbir Singh, Laurentiu Tudor, Mahesh Salgaonkar, Mark Hairgrove, Nicholas Piggin, Rashmica Gupta, Shilpasri G Bhat" * tag 'powerpc-4.17-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/kvm/booke: Fix altivec related build break powerpc: Fix deadlock with multiple calls to smp_send_stop cpufreq: powernv: Fix hardlockup due to synchronous smp_call in timer interrupt powerpc: Fix smp_send_stop NMI IPI handling rtc: opal: Fix OPAL RTC driver OPAL_BUSY loops powerpc/mce: Fix a bug where mce loops on memory UE. powerpc/powernv/npu: Do a PID GPU TLB flush when invalidating a large address range powerpc/powernv/npu: Prevent overwriting of pnv_npu2_init_contex() callback parameters powerpc/powernv/npu: Add lock to prevent race in concurrent context init/destroy powerpc/powernv/memtrace: Let the arch hotunplug code flush cache powerpc/mm: Flush cache on memory hot(un)plug
2018-04-28sfc: fix ARFS expiry check on EF10Edward Cree1-2/+3
Owing to a missing conditional, the result of rps_may_expire_flow() was being ignored and filters were being removed even if we'd decided not to expire them. Fixes: f8d6203780b7 ("sfc: ARFS filter IDs") Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-28sfc: Use filter index rather than ID for rps_flow_id tableEdward Cree1-0/+2
efx->type->filter_insert() returns an ID rather than the index that efx->type->filter_async_insert() used to, which causes it to exceed efx->type->max_rx_ip_filters on some EF10 configurations, leading to out- of-bounds array writes. So, in efx_filter_rfs_work(), convert this back into an index (which is what the remove call in the expiry path expects, anyway). Fixes: 3af0f34290f6 ("sfc: replace asynchronous filter operations") Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-28drivers: net: replace UINT64_MAX with U64_MAXJisheng Zhang6-24/+7
U64_MAX is well defined now while the UINT64_MAX is not, so we fall back to drivers' own definition as below: #ifndef UINT64_MAX #define UINT64_MAX (u64)(~((u64)0)) #endif I believe this is in one phy driver then copied and pasted to other phy drivers. Replace the UINT64_MAX with U64_MAX to clean up the source code. Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27ptp_pch: use helpers function for converting between ns and timespecYueHaibing1-5/+2
use ns_to_timespec64() and timespec64_to_ns() instead of open coding Signed-off-by: YueHaibing <yuehaibing@huawei.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27bnxt_en: Reserve rings at driver open if none was reserved at probe time.Michael Chan1-0/+31
Add logic to reserve default rings at driver open time if none was reserved during probe time. This will happen when the PF driver did not provision minimum rings to the VF, due to more limited resources. Driver open will only succeed if some minimum rings can be reserved. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27bnxt_en: Reserve RSS and L2 contexts for VF.Michael Chan3-5/+14
For completeness and correctness, the VF driver needs to reserve these RSS and L2 contexts. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27bnxt_en: Don't reserve rings on VF when min rings were not provisioned by PF.Michael Chan1-1/+26
When rings are more limited and the PF has not provisioned minimum guaranteed rings to the VF, do not reserve rings during driver probe. Wait till device open before reserving rings when they will be used. Device open will succeed if some minimum rings can be successfully reserved and allocated. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27bnxt_en: Reserve rings in bnxt_set_channels() if device is down.Michael Chan1-0/+2
The current code does not reserve rings during ethtool -L when the device is down. The rings will be reserved when the device is later opened. Change it to reserve rings during ethtool -L when the device is down. This provides a better guarantee that the device open will be successful when the rings are reserved ahead of time. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27bnxt_en: add debugfs support for DIMAndy Gospodarek5-0/+156
This adds debugfs support for bnxt_en with the purpose of allowing users to examine the current DIM profile in use for each receive queue. This was instrumental in debugging issues found with DIM and ensuring that the profiles we expect to use are the profiles being used. Signed-off-by: Andy Gospodarek <gospo@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27bnxt_en: reduce timeout on initial HWRM callsAndy Gospodarek2-3/+29
Testing with DIM enabled on older kernels indicated that firmware calls were slower than expected. More detailed analysis indicated that the default 25us delay was higher than necessary. Reducing the time spend in usleep_range() for the first several calls would reduce the overall latency of firmware calls on newer Intel processors. Signed-off-by: Andy Gospodarek <gospo@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27bnxt_en: Increase RING_IDLE minimum threshold to 50Andy Gospodarek1-1/+1
This keeps the RING_IDLE flag set in hardware for higher coalesce settings by default and improved latency. Signed-off-by: Andy Gospodarek <gospo@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27bnxt_en: Do not allow VF to read EEPROM.Michael Chan1-0/+5
Firmware does not allow the operation and would return failure, causing a warning in dmesg. So check for VF and disallow it in the driver. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27bnxt_en: Display function level rx/tx_discard_pkts via ethtoolVasundhara Volam1-0/+33
Add counters to display sum of rx/tx_discard_pkts of all rings as function level statistics via ethtool. Signed-off-by: Vasundhara Volam <vasundhara-v.volam@broadcom.com> Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27bnxt_en: Simplify ring alloc/free error messages.Michael Chan1-37/+6
Replace switch statements printing different messages for every ring type with a common message. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27bnxt_en: Do not set firmware time from VF driver on older firmware.Michael Chan1-1/+2
Older firmware will reject this call and cause an error message to be printed by the VF driver. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27bnxt_en: Check the lengths of encapsulated firmware responses.Michael Chan2-0/+21
Firmware messages that are forwarded from PF to VFs are encapsulated. The size of these encapsulated messages must not exceed the maximum defined message size. Add appropriate checks to avoid oversize messages. Firmware messages may be expanded in future specs and this will provide some guardrails to avoid data corruption. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27bnxt_en: Remap TC to hardware queues when configuring PFC.Michael Chan1-41/+60
Initially, the MQPRIO TCs are mapped 1:1 directly to the hardware queues. Some of these hardware queues are configured to be lossless. When PFC is enabled on one of more TCs, we now need to remap the TCs that have PFC enabled to the lossless hardware queues. After remapping, we need to close and open the NIC for the new mapping to take effect. We also need to reprogram all ETS parameters. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27bnxt_en: Add TC to hardware QoS queue mapping logic.Michael Chan3-24/+47
The current driver maps MQPRIO traffic classes directly 1:1 to the internal hardware queues (TC0 maps to hardware queue 0, etc). This direct mapping requires the internal hardware queues to be reconfigured from lossless to lossy and vice versa when necessary. This involves reconfiguring internal buffer thresholds which is disruptive and not always reliable. Implement a new scheme to map TCs to internal hardware queues by matching up their PFC requirements. This will eliminate the need to reconfigure a hardware queue internal buffers at run time. After remapping, the NIC is closed and opened for the new TC to hardware queues to take effect. This patch only adds the basic mapping logic. Signed-off-by: Michael Chan <michael.chan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27hv_netvsc: simplify receive side calling argumentsStephen Hemminger1-32/+26
The calls up from the napi poll reading the receive ring had many places where an argument was being recreated. I.e the caller already had the value and wasn't passing it, then the callee would use known relationship to determine the same value. Simpler and faster to just pass arguments needed. Also, add const in a couple places where message is being only read. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27Merge tag 'mlx5-fixes-2018-04-25' of ↵David S. Miller6-27/+37
git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux Saeed Mahameed says: ==================== Mellanox, mlx5 fixes 2018-04-26 This pull request includes fixes for mlx5 core and netdev driver. Please pull and let me know if there's any problems. For -stable v4.12 net/mlx5e: TX, Use correct counter in dma_map error flow For -stable v4.13 net/mlx5: Avoid cleaning flow steering table twice during error flow For -stable v4.14 net/mlx5e: Allow offloading ipv4 header re-write for icmp For -stable v4.15 net/mlx5e: DCBNL fix min inline header size for dscp For -stable v4.16 net/mlx5: Fix mlx5_get_vector_affinity function ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27net: intel: Cleanup the copyright/license headersJeff Kirsher195-4624/+222
After many years of having a ~30 line copyright and license header to our source files, we are finally able to reduce that to one line with the advent of the SPDX identifier. Also caught a few files missing the SPDX license identifier, so fixed them up. Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Acked-by: Shannon Nelson <shannon.nelson@oracle.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27geneve: fix build with modular IPV6Tobias Regnery1-0/+1
Commit c40e89fd358e ("geneve: configure MTU based on a lower device") added an IS_ENABLED(CONFIG_IPV6) to geneve, leading to the following link error with CONFIG_GENEVE=y and CONFIG_IPV6=m: drivers/net/geneve.o: In function `geneve_link_config': geneve.c:(.text+0x14c): undefined reference to `rt6_lookup' Fix this by adding a Kconfig dependency and forcing GENEVE to be a module when IPV6 is a module. Fixes: c40e89fd358e ("geneve: configure MTU based on a lower device") Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27Merge tag 'wireless-drivers-for-davem-2018-04-26' of ↵David S. Miller8-62/+138
git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers Kalle Valo says: ==================== wireless-drivers fixes for 4.17 A few fixes for 4.17 but nothing really special. The new ETSI WMM parameter support for iwlwifi is not technically a bugfix but important for regulatory compliance. iwlwifi * use new ETSI WMM parameters from regulatory database * fix a regression with the older firmware API 31 (eg. 31.560484.0) brcmfmac * fix a double free in nvmam loading fails rtlwifi * yet another fix for ant_sel module parameter ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27mlxsw: spectrum_switchdev: Do not remove mrouter port from MDB's ports listIdo Schimmel1-7/+5
When IGMP snooping is enabled on a bridge, traffic forwarded by an MDB entry should be sent to both ports member in the MDB's ports list and mrouter ports. In case a port needs to be removed from an MDB's ports list, but this port is also configured as an mrouter port, then do not update the device so that it will continue to forward traffic through that port. Fix a copy-paste error that checked that IGMP snooping is enabled twice instead of checking the port's mrouter state. Fixes: ded711c87a04 ("mlxsw: spectrum_switchdev: Consider mrouter status for mdb changes") Signed-off-by: Ido Schimmel <idosch@mellanox.com> Reported-by: Colin King <colin.king@canonical.com> Reviewed-by: Nogah Frankel <nogahf@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27Merge tag 'char-misc-4.17-rc3' of ↵Linus Torvalds9-96/+120
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver fixes from Greg KH: "Here are some small char and misc driver fixes for 4.17-rc3 A variety of small things that have fallen out after 4.17-rc1 was out. Some vboxguest fixes for systems with lots of memory, amba bus fixes, some MAINTAINERS updates, uio_hv_generic driver fixes, and a few other minor things that resolve problems that people reported. The amba bus fixes took twice to get right, the first time I messed up applying the patches in the wrong order, hence the revert and later addition again with the correct fix, sorry about that. All of these have been in linux-next with no reported issues" * tag 'char-misc-4.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: ARM: amba: Fix race condition with driver_override ARM: amba: Make driver_override output consistent with other buses Revert "ARM: amba: Fix race condition with driver_override" ARM: amba: Don't read past the end of sysfs "driver_override" buffer ARM: amba: Fix race condition with driver_override virt: vbox: Log an error when we fail to get the host version virt: vbox: Use __get_free_pages instead of kmalloc for DMA32 memory virt: vbox: Add vbg_req_free() helper function virt: vbox: Move declarations of vboxguest private functions to private header slimbus: Fix out-of-bounds access in slim_slicesize() MAINTAINERS: add dri-devel&linaro-mm for Android ION fpga-manager: altera-ps-spi: preserve nCONFIG state MAINTAINERS: update my email address uio_hv_generic: fix subchannel ring mmap uio_hv_generic: use correct channel in isr uio_hv_generic: make ring buffer attribute for primary channel uio_hv_generic: set size of ring buffer attribute ANDROID: binder: prevent transactions into own process.
2018-04-27s390/qeth: improve fallback to random MAC addressJulian Wiedmann1-10/+13
If READ MAC fails to fetch a valid MAC address, allow some more device types (IQD and z/VM OSD) to fall back to a random address. Also use eth_hw_addr_random(), for indicating to userspace that the address type is NET_ADDR_RANDOM. Note that while z/VM has various protection schemes to prohibit custom addresses on its NICs, they are all optional. So we should at least give it a try. Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27s390/qeth: add IPv6 RX checksum offload supportKittipon Meesompop3-8/+33
Check if a qeth device supports IPv6 RX checksum offload, and hook it up into the existing NETIF_F_RXCSUM support. As NETIF_F_RXCSUM is now backed by a combination of HW Assists, we need to be a little smarter when dealing with errors during a configuration change: - switching on NETIF_F_RXCSUM only makes sense if at least one HW Assist was enabled successfully. - for switching off NETIF_F_RXCSUM, all available HW Assists need to be deactivated. Signed-off-by: Kittipon Meesompop <kmeesomp@linux.vnet.ibm.com> Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27s390/qeth: add IPv6 TX checksum offload supportKittipon Meesompop5-15/+38
Check if a qeth device supports IPv6 TX checksum offload, and advertise NETIF_F_IPV6_CSUM accordingly. Add support for setting the relevant bits in IPv6 packet descriptors. Currently this has only limited use (ie. UDP, or Jumbo Frames). For any TCP traffic with a standard MSS, the TCP checksum gets calculated as part of the linear GSO segmentation. Signed-off-by: Kittipon Meesompop <kmeesomp@linux.vnet.ibm.com> Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27s390/qeth: extend Checksum Offload Assists for IPv6Kittipon Meesompop3-52/+60
Add some wrappers to make the protocol-specific Assist code a little more generic, and use them for sending protocol-agnostic commands in the Checksum Offload Assist code. Signed-off-by: Kittipon Meesompop <kmeesomp@linux.vnet.ibm.com> Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27s390/qeth: query IPv6 assists during hardsetupKittipon Meesompop2-8/+5
For new functionality, the L2 subdriver will start using IPv6 assists. So move the query from the L3 subdriver into the common setup path. Signed-off-by: Kittipon Meesompop <kmeesomp@linux.vnet.ibm.com> Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27s390/qeth: add stats counter for RX csum offloadKittipon Meesompop2-3/+9
This matches the statistics we gather for the TX offload path. Signed-off-by: Kittipon Meesompop <kmeesomp@linux.vnet.ibm.com> Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27s390/qeth: disregard IPv4 header for RX csum offloadJulian Wiedmann1-1/+0
The kernel does its own validation of the IPv4 header checksum, drivers/HW are not required to handle this. Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27s390/qeth: extract csum offload helpersJulian Wiedmann3-59/+33
This consolidates the checksum offload code that was duplicated over the two qeth subdrivers. Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27s390/qeth: de-indent else after returnKittipon Meesompop1-22/+21
Trivial cleanup, in preparation for a subsequent patch. Signed-off-by: Kittipon Meesompop <kmeesomp@linux.vnet.ibm.com> Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-27s390/net: set HW port number in netdeviceUrsula Braun4-0/+7
struct net_device contains a dev_port field. Store the OSA port number in this field. Signed-off-by: Ursula Braun <ubraun@linux.ibm.com> Reviewed-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>