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ReleaseNotes-sfc
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Solarflare 4.X Linux network driver
===================================
Version: 4.15.6.1004
Overview
--------
This package is the Linux NET driver source RPM for Solarflare Server
Adapters.
Supported hardware platforms
----------------------------
The drivers contained in this package support the following Solarflare
adapters:
- Solarflare Server Adapters:
- XtremeScale X2522 (10G) PCIe Dual Port SFP28
- XtremeScale X2522-25G PCIe Dual Port SFP28
- XtremeScale X2541 PCIe Single Port QSFP28
- XtremeScale X2542 PCIe Dual Port QSFP28
- XtremeScale X2552 OCP 2.0 Dual Port SFP28
- XtremeScale X2562 OCP 3.0 Dual Port SFP28
- Solarflare SFN8522M Dual Port SFP+ Server Adapter
- Solarflare SFN8042 Dual Port QSFP+ Server Adapter
- Solarflare SFN8522 Dual Port SFP+ Server Adapter
- Solarflare SFN8542 Dual Port QSFP+ Server Adapter
- Solarflare SFN8722 Dual Port SFP+ OCP Server Adapter
- Solarflare SFN7002F Dual Port SFP+ Server Adapter
- Solarflare SFN7004F Quad Port SFP+ Server Adapter
- Solarflare SFN7042Q Dual Port QSFP+ Server Adapter
- Solarflare SFN7122F Dual Port SFP+ Server Adapter
- Solarflare SFN7124F Quad Port SFP+ Server Adapter
- Solarflare SFN7142Q Dual Port QSFP+ Server Adapter
- Solarflare SFN7322F Precision Time Synchronization Server Adapter
- Solarflare Onload Server Adapters:
- Solarflare SFN6122F Dual Port SFP+ Server Adapter
- Solarflare SFN6322F Precision Time Synchronization Server Adapter
- Solarflare SFN6832F SFP+ Mezzanine Adapter
- Solarflare SFN5322F Precision Time Synchronization Server Adapter
- Solarflare SFN5122F Dual Port SFP+ Server Adapter
- Solarflare SFN5121T Dual Port 10GBASE-T Server Adapter
- Solarflare SFN5802K Mezzanine Adapter (for HP BladeSystem c-Class)
- Solarflare SFN5812H/SFN5814H Mezzanine Adapter (for IBM BladeCenter)
- Solarflare AOE Adapters:
- Solarflare SFA7942Q QSFP+ AOE Adapter
- Solarflare Performant Server Adapters:
- Solarflare SFN5151T 10GBASE-T Server Adapter
- Solarflare SFN5152F SFP+ Server Adapter
- Solarflare SFN5161T Dual Port 10GBASE-T Server Adapter
- Solarflare SFN5162F Dual Port SFP+ Server Adapter
- The following OEM adapters are also supported, but note each OEM may recommend
a different driver version to match the version used for testing/qualification
- HP Ethernet 10Gb 570FLB Adapter
- HP Ethernet 10Gb 570M Adapter
- HP Ethernet 10Gb 572SFP+ Adapter
- Lenovo SFN7122F 2x10GbE SFP+ Adapter
Building and installation
-------------------------
To build a binary RPM for the running kernel type:
rpmbuild --rebuild <source rpm filename>
To install the resulting binary rpm:
Locate the file that was created in the preceding step, prefixed with the
annotation "Wrote:", then type:
rpm -Uvh <binary rpm filename>
To ensure that the correct version of the driver is loaded into the current
kernel
/sbin/modprobe -r sfc
/sbin/modprobe sfc
Installation of the driver can be confirmed by typing:
modinfo sfc | grep version
and checking for the line:
version: 4.15.6.1004
All network interfaces available on the system can be found with:
ifconfig -a
Linux distribution support for Solarflare Adapters
--------------------------------------------------
This driver package is supported on:
- RedHat Enterprise Linux 6.10
- RedHat Enterprise Linux 7.5, 7.6, 7.7
- RedHat Enterprise Linux 8.0, 8.1
- CentOS 8.0, 8.1
- SuSE Linux Enterprise Server 12 sp3, sp4
- SuSE Linux Enterprise Server 15 base, sp1
- Canonical Ubuntu Server LTS 16.04.x, 18.04
- Debian 8 "Jessie" 8.10
- Debian 9 "Stretch" 9.4
- Debian 10 "Stretch" 10.2
- Kernel.org linux kernels 3.0 to 5.5
Solarflare aims to support the current and previous major release of each
supported distribution at the time this driver was released (plus, possibly,
the latest long term support release if this is neither the current nor
previous major release). Support includes all minor updates/releases/service
packs of the above major releases, for which the distributor has not yet
declared end of life/support.
Support
-------
Please contact your local Solarflare support representative or email
<support@solarflare.com>.
Changelog
---------
### v4.15.6.1004
SF-123551-KI / Issue 3281:
~ Changing ring sizes when using XDP could cause a kernel panic.
Issue 3060:
~ Warn when a non-primary function associates with the PHC.
Issue 3547:
~ Correct timestamp reconstruction at 16 bit rollover points on SFC8000.
Issue 3527, 3274:
~ Decouple MTD cleanup more from net device.
### v4.15.6.1000
Issues 3479, 3405:
~ Adjust compatibility layer to improve range of kernel support.
### v4.15.5.1007
Issue 3405:
~ Enhance the ARFS expiry mechanism.
Issue 3376:
~ Link down was sometimes misinterpreted as link-up.
Issue 3332:
~ Avoid too many MC reboots for UDP tunnels.
### v4.15.5.1003
Issue 3336:
~ Fix a mistaken attempt to use PTP on NICs for which PTP is not licensed.
Issue 876:
~ Do not print an error when the old private ioctl EFX_TS_INIT is issued
on new kernels.
Issue 3350:
~ An optimisation that reduces latency in some situations.
Issue 88589:
~ Fix KBUILD_SRC detection to be compatible with linux-5.3.
Issue 89184:
~ Correct the channel count for ethtool -x.
Issue 89155:
~ If we notice the that NIC has gone into an infinite reset loop, disable it.
### v4.15.4.1003 - 19.2 release
Issue 89009:
~ Fix PTP support on Debian 8.
Issue 76254:
~ Allow changing the MAC address of a VM on RHEL 7.4 and later.
Issue 88295:
~ Remove stack trace when removing the PIO license.
### v4.15.4.1002
SF-122787-KI / Issue 88259:
~ Fix issue with delivering PTP SYNC packets to sfptpd on VLANed interfaces.
~ This regression is present in driver versions 4.15.2.1001 to 4.15.3.1011 inclusive.
Issue 88012:
~ Fix build error when CONFIG_SFC_SRIOV is disabled.
Issue 87939,88582:
~ Fix for warnings during driver load of the form
sysfs: cannot create duplicate filename '/devices/virtual/workqueue/sfc_pps_0000:02:00'
Issue 87608,87609:
~ Address potential WARNING efx_mtd_creation_work() seen on driver load.
### v4.15.3.1011
[General changes]
~ Initial kernel compat fixes for linux kernel 5.2.
~ Reset stats when a network interface is created. Note this will not reset
stats on other interfaces that share the physical network port
i.e. when sfboot pf-count>=2
Alternatively reset stats with "ethtool --reset <device> mac" or use
"sfctool" if your copy of "ethtool" does not support "--reset".
~ LNXNET-62: Report the version of the driver to adapter firmware at driver
load. This can then be reported by management protocols (e.g. NC-SI).
~ The 8000 series and newer adapters all get hardware timestamps from the MAC
and hence can supply a hardware timestamp for any packet when requested.
This enables the use of PTP layer 2 timestamps.
~ add "rss_cpus=rss_numa_local_cores" and "rss_cpus=numa_local_hyperthreads"
module parameters to only allocate channels on a given NUMA node. This is
useful for very large systems and can significantly reduce the number of
interrupts consumed.
Issue 87503:
~ Add PCIe domain to PTP/PPS workqueue name to avoid naming collisions in /sys.
Issue 86926:
~ Ensure ethtool can return 256bytes of DAC module info (instead of none) when
the module is SFF-8472 compliant but where the DDM compliance bit isn't set.
Issue 86925:
~ Link speed shows as "0 Mbps full duplex" for bonds on linux kernels < 4.6
Issue 86413:
~ For kernels >=4.19 avoid duplicate names with MTD/NVMEM symlinks caused
by interface renaming races in udev.
Issue 85750:
~ Fix registration of PHC clocks where there are more than two ports or
functions on an adapter.
Issue 81246:
~ Fix timestamping for PTP packets over VLANed interfaces on <=SFN6XXX
hardware.
Issue 80717:
~ Improve race handling in MCDI completions. This was seen to cause
LIST_POISON1 assertions in the kernel.
### v4.15.2.1001 -- maintenance release for 18.3
Issue 85216:
~ Some MTD partitions were not correctly populated, with the missing
partitions depending on uninitialised data. This could potentially cause
issues when updating firmware.
Issue 84673:
~ In some situations the driver could fail to recover from a failure to
allocate a receive buffer. This may happen when the system is under very
serious memory pressure. The driver should now recover once memory becomes
available.
### v4.15.1.1008 -- 18.3 release
[General changes]
~ Performance improvements for 100G NICs.
On a 100G NIC in a single port mode, setting the performance_profile
module parameter to "throughput" will put the NIC in a mode that
makes more efficient use of the NIC. Please note that this mode is
incompatible with EFVI and Onload.
~ Kernel compat fixes to support Linux 4.20.
[Deprecation warnings]
~ The hybrid SRIOV support for 5000- and 6000-series NICs will be removed in
an upcoming release.
### v4.15.0.1012 -- update release for OpenOnload-201811
[General changes]
~ Kernel compat fixes to support linux 4.19.
~ Use irq_set_affinity_hint when backport is available in RHEL kernels.
~ Calculate descriptors per SKB based off the NIC type. This can allow smaller
TX rings.
Issue 82232:
~ Previously, invalid tx ring lengths would be corrected and
applied when using the ethtool -G|--set-ring interface. Invalid
lengths will now be rejected. This also fixed an issue where the
uncorrected length would be reported when later using
ethtool -g|--show-ring.
Issue 82073:
~ Avoid issue if PF0 bound after PF1 when adapter has a PTP license. This has
been seen when using netplan on Ubuntu and could result in a panic from
queue_work_on() where efx_ptp_event() is also present in the stack.
This issue was introduced in v4.14.0.1014.
Issue 77401:
~ The PCI VPD is no longer used during driver load. Instead of
printing the part number we now show the PCI device and subsystem
numbers, which are registered in the public PCI ID database.
### v4.14.0.1018 -- 18.2 release
[General changes]
~ Kernel compat for v4.19-rc kernels and RHEL 7.6 beta.
[25/50/100G]
~ Added a warning on driver load if using a 25/50/100G capable NIC
with a kernel that doesn't support 25/50/100. The warning text is:
"This NIC has link speeds that are not supported by your kernel"
### v4.14.0.1014 -- update release for OpenOnload-201805
[General changes]
~ Kernel compat fixes to support linux 4.18 and RHEL 6.10
~ Removal of obsolete kernel compat support
[ESXi in-guest PTP]
~ Allow VFs to register PHC clocks
~ Register a single PHC clock per adapter (grouping on adapter base
MAC address)
~ Ensure all adapter interfaces (including VFs) point to the single
PHC clock.
~ VFs will only be able to read/sync to adapter clock unless extra
privileges are granted.
[Removed features]
~ Removal of previously deprecated features:
SARFS, SXPS, driverlink RX packet callback, proxy MCDI authorization.
Issue 81032:
~ Channels used for XDP transmit are now included in the output from
ethtool --get-channels, listed as "Other". These channels are only
created if the driver is loaded with the module parameter
xdp_alloc_tx_resources set.
Issue 81011:
~ Ethtool -s (sset/slinksettings) commands are now interpreted more simply,
using the autoneg setting to choose between using the advertise bitmap
or the speed/duplex settings. This works around a problem in some RHEL7
kernels where 'ethtool -s ... autoneg off' had no effect.
Issue 80588:
~ Fix for a memory leak when replacing an XDP programme. The driver was
retaining an additional reference to the old programme when a new one
was installed, resulting in it not being freed by the kernel.
Issue 80393:
~ Fix initialisation of filter semaphore for 5000/6000 series NICs.
A semaphore was not correctly initialised, causing errors from debug
kernels.
Issue 80006:
~ Fix the calculation of required resources when setting up XDP.
One XDP transmit queue is required per CPU, but we share an event queue
between multiplt transmit queues. This was not accounted for correctly,
meaning the driver could refuse to enable XDP despite having resources.
### v4.13.1.1034 -- X2 GA release, OpenOnload-201805
[General changes]
~ Kernel compat fixes to support linux 4.15
[timespec_add_ns(), setup_timer(), mtd_erase_callback(), TICK_USEC ]
~ Support RSS spreading of ethtool ntuple filters and add this to driverlink
APIs.
To configure this requires upstreamed ethtool changes or a copy of sfctool2
from the sfutils package.
~ Remove "ctpio_dmabuf_start" that was erroneously included in ethtool stats.
~ Expose flash partitions with default settings via MTD. These are now used by
sfboot.
~ Replace asynchronous filter operations (e.g. ARFS) to ensure all filter table
functions are called in a sleepable context.
[Deprecation warnings]
~ Warnings will be printed if the following features of the driver are used:
SARFS, SXPS, driverlink RX packet callback, proxy MCDI authorization.
~ Please see the section on deprecated features elsewhere in this release note.
Issue 79102:
~ Filter locking improvements.
~ This had been seen to cause a command such as "ip link set ethX vf 0 vlan 10"
to cause hung task timeouts with "efx_ef10_filter_insert+0x94/0x900" in the
stack.
Issue 78429:
~ Avoid using RSS filters with "capture-packed-stream" firmware variant.
The error seen would be "efx_ef10_filter_insert failed rc=-95".
SF-119883-KI / Issue 78299:
~ Fix for kernel panic or NMI. The backtrace will include
"efx_mcdi_rpc_completer" and a "__wake_up" function.
Issue 77962:
~ Handle delayed release of MTD memory by reference counting partition info.
~ This could cause a kernel WARNING and backtrace at:
drivers/mtd/mtdcore.c:508 add_mtd_device+0x246/0x350 [mtd]
Issue 77898:
~ Clean up channel->tx_queues when retrying after VI shortage.
~ This was only seen with 16PFs (sfboot pf-count=16) and resulted in the error
"failed to initialise TXQ 8"
Issue 77378:
~ Avoid "Unable to set UDP tunnel ports" when using L3xUDP firmware variant.
### v4.13.1.1021 -- X2 pre-production release
[General changes]
~ Initial support for Solarflare X2 adapter series. This has not completed
testing and qualification at Solarflare and hence should not be used in a
production environment.
~ Kernel compatibility for upstream 4.16-rc1.
~ Kernel compatibility for RHEL 7.5.
~ Improve error handling when removing an MTD partition fails. This can lead to
repeated messages of the form "Removing MTD device #0 with use count 1".
~ Fix build error with gcc version 7.2.1.
~ Expose the PHC clock for 1 VF per VM.
~ Increase the number of multicast filters to 512.
~ Disabled SKB cache on recent kernels due to netdev_alloc_skb improvements
making it redundant.
~ Check if MCDI event pending, when MCDI times out.
~ Expose FEC statistics on X2 adapters.
~ Add support for 25/50/100G supported/advertised speeds.
~ expose CTPIO stats on NICs on X2 adapters.
~ Add control of forward_fcs through ethtool feature flags.
~ support X2 VI strides other than 8k.
SF-119883-KI / Issue 78131:
~ Address a potential kernel panic where the backtrace will include
"efx_mcdi_rpc_completer".
~ This affected systems running sfc v4.12 prior to v4.12.2.1013.
Issue 78042:
~ Don't restore filters marked BUSY in efx_ef10_filter_table_restore().
~ This could lead to the following errors, but only after the rare event that
the MC resets:
MC command 0x8a inlen 108 failed rc=-22 (raw=0) arg=0
Issue 76297:
~ Add 'immediate send' feature to async MCDI and use it to ensure that PTP
time sync commands are sent in the same thread as the process_times logic
is done in.
[Stratus ftServer support] - Note these issues only affect PCI hot-plug cases
Issue 76858:
~ Fix kernel crash in show_max_adjfreq+0x20/0x40.
### v4.12.2.1014 -- update release for OpenOnload-201710
[General changes]
~ Kernel compatibility for upstream 4.15, 4.16-rc5 and RHEL 7.5.
~ Increase the number of multicast filters used before reverting to the
'multicast all' filter. In response to customer feedback the maximum number
of multicast filters inserted has been increased from 256 to 512. Above
that the individual filters will still be replaced with a 'multicast all'
filter.
SF-119883-KI / Issue 78131:
~ A race condition in the MCDI (driver<=>adapter communication) state machine
could result in stack data being accessed from a different thread after it
had gone out of scope. This would result in invalid addresses being read or
a hard lockup, both with efx_mcdi_rpc_completer and __wake_up in the call
stack. A similar race (not observed in use) was identified and fixed in the
PTP/MCDI interaction.
### v4.12.2.1006 -- update release for OpenOnload-201710
[General changes]
~ GCC 7.2 introduces additional warnings related to potential string
truncation. The warnings generated by the drivers are not causes for concern,
since the actual possible numerical range is small; however, the format
string checking isn't aware of the actual numerical range. Format strings
have been updated and types changed to prevent warnings.
~ Kernel compatibility for upstream 4.14, 4.15-rc6.
Issue 74885:
~ A race condition in the MCDI (driver<=>adapter communication) state machine
could result in cleanup code being run twice, resulting in various errors
with efx_mcdi_process_cleanup_list in the call stack.
Issue 75614:
~ During a link flap caused by a switch the driver would log link up/down
messages at an excessive rate. These messages are now rate limited.
SF-119179-KI / Issue 75087:
~ Interrupts were wrongly named "<interface>-xdp" instead of "<interface>-tx"
when using separate_tx_channels mode.
Issue 73384:
~ Adapter license checks must be completed before the driver attempts to read
any capability flags.
### v4.12.1.1021 -- GA release (SF17.2)
SF-119052-KI / Issue 74628:
~ Fix "rx event arrived on queue xx labeled as queue yy" that could disable
the interface.
~ This could only occur with:
* >32 RXQs in-use (i.e. >32 logical CPUs or rss_cpus module parameter set).
* sfboot msix-limit of 64 or above (a non-default configuration).
* SFC net driver v4.12.1.1016 (i.e. OpenOnload-201710).
Issue 74078:
~ Remove warning when expiring an ARFS filter that has been replaced with a
higher priority filter (such as an ethtool ntuple filter).
### v4.12.1.1016 -- release with OpenOnload-201710
[General changes]
~ Rework of MCDI (driver<=>adapter communication) state machine (to better
support long running background operations on the adapter).
~ Increase maximum number of channels (as determined by the rss_cpus module
parameter) from 32 to 64. This allows more RX and TX queues which is useful
on systems with large numbers of cores. Note that most NICs will have a
default MSI-X interrupt count limit of 32. This can be increased using
"sfboot msix-limit=<n>".
~ Support configuring a 2-tuple RSS hash for UDP. This ensures that a UDP flow
always hashes to the same CPU regardless of how many IP fragments the UDP
packet spans,
To configure a 2-uple of IP source and destination address:
# ethtool -N <interface> rx-flow-hash udp4 sd
To confirm which fields are used for the RSS hash:
# ethtool -n <interface> rx-flow-hash udp4
To use the The default is a 4-way hash:
# ethtool -N <interface> rx-flow-hash udp4 sdfn
[PTP changes]
~ Increase the frequency adjustment range supported by the net driver to +-10%
and create mechanism for sfptpd to detect this.
[XDP preview]
~ This release includes experimental driver support for XDP (Express Data
Path). XDP is a kernel feature that allows eBPF programs to be run on
incoming packets before they are passed to the rest of the network stack.
The program can modify the packet and instruct the driver to:
- accept the packet
- drop the packet
- transmit the packet on the same interface
- transmit the packet on a different interface
~ Support for the various features depends on different upstream kernel
versions. Please check XDP support is available in your kernel:
- Support for drop and TX appeared in linux v4.8.
- Support for redirect is appearing in linux v4.14.
~ For XDP transmit, additional transmit queues are used by the driver. To
avoid increasing the resource utilization in general use, this is NOT
enabled by default. To enable allocation of the necessary resources, the
module parameter "xdp_alloc_tx_resources=1" should be specified when
loading the driver. The intention is for a future release of this driver
to allow such resources to be allocated dynamically, avoiding the need
for this load time configuration; as such, it is likely that this module
parameter will be removed in a future release.
Issue 73931:
~ Check structure pointer is valid before use in debugfs.
~ This was seen to cause a NULL pointer dereference in debugfs access only if
certain parts of driver initialization had failed. There is no issue if the
driver successfully creates a network interface.
Issue 73700:
~ Candidate fix for "kernel BUG at lib/dynamic_queue_limits.c:26!" by adding
memory barriers to address race between netdev_tx_sent and
netdev_tx_completed.
Issue 73384:
~ [SFN8000 series] No licenses available if the sfc driver loaded immediately
after firmware restart.
~ This could only be triggered with "ethtool -t enp1s0f0; onload_tool reload"
Issue 73143:
~ Fixed reading of ef10 data on non-ef10 NIC (i.e. SFN5000 or SFN6000 series)
~ This was detected using KASAN by Stefano Brivio at Redhat:
BUG: KASAN: slab-out-of-bounds in efx_mcdi_mac_stats
Issue 73104:
~ Only report link down if it was previously up.
~ This can occur as the adapter firmware may report changes to PCS states
while the overall link state is still down.
Issue 73085:
~ [PTP] Erroneous PTP offset sometimes reported on multi CPU-package machines,
believed to be caused by QPI routing.
~ Improve sample selection by using the one which is closest to the average
of good samples.
Issue 72543:
~ [onload] Increase event queue 0 allowance for driverlink events. This had
been seen to lead to the following errors on TX queue 0:
MCDI request was completed without an event
TX queue 0 spurious TX completion id 1480
Issue 72328:
~ Fix possible overflow of unicast address list. e.g. by configuration of a
32nd macvlan interface all on the same network interface. The error was of
the form:
WARNING: at driver/linux_net/ef10.c:7032 efx_ef10_filter_insert_addr_list+0x4d2/0x510 [sfc]()
Issue 72220:
~ [32bit PHC support]. Fix bug in efx_phc_gettime32() that returns junk time.
~ This only affects systems without 64bit PHC support e.g. some SLES11
(kernel 3.0.101)
Issue 71931:
~ Correct endianness of filters debugfs output.
Issue 70902:
~ [SFN5000 and SFN6000 series] Fix panic in efx_ethtool_get_regs() from
"ethtool -d".
Issue 68849:
~ Fix "hwmon_device_register() is deprecated" warning seen in Ubuntu 17.04
Issue 68040:
~ [PTP + SFN8000 series] Report correct TX timestamp corrections for
(a) normal data path used for PTP transmit.
(b) general TX timestamps from the MAC.
Issue 67150:
~ Reduce race condition waiting for ethtool -t offline self-test to complete.
Issue 66860:
~ Correct VF handling when "ethtool -t offline" self-test is run on any
privileged PF.
Issue 63057:
~ [SFN8000 series] fallback to default speeds if none advertised.
~ There can be an issue getting a link on SFN8000 series adapters after a
RHEL 6.8/7.3 in-box driver has been loaded first.
Issue 62723:
~ Remove PCIe FLR after "Failed to acquire MCDI state" as this does not seem
to improve driver robustness.
Issue 58792:
~ Fix WARNINGs on driver unload for (debug) kernels with the option
DEBUG_KOBJECT_RELEASE enabled.
Issue 56902:
~ Ensure filter is removed during an MC reboot (e.g. sfupdate) when onload is
being used. This has been seen to cause the following errors:
[onload] tcp_helper_endpoint_clear_filters: [0:28]
sfc 0000:01:00.0 enp1s0f0: MC command 0x8a inlen 108 failed rc=-22 (raw=0)
and
[onload] __oof_manager_addr_del: 0:79 CLEAR TCP 172.16.132.67:35769
sfc 0000:01:00.0 enp1s0f0: MC command 0x8a inlen 108 failed rc=-22 (raw=0)
Issue 48050:
~ Handle adapter VPD data residing at offsets greater than 512bytes in PCI
config space.
~ This resulted in the message "Unable to read VPD"
[Stratus ftServer support] - Note these issues only affect PCI hot-plug cases
Issue 68343:
~ Fix deadlock between efx_channel_reassign_irq and efx_irq_notify.
~ Could also be hit when running "ethtool -C" and "ethtool -G" in a loop.
### v4.10.7.1004 -- Update release for EOL5
Issue 75470:
~ Error handling in the transmit path in efx_dequeue_buffers could cause a
null pointer dereference. This error handling has not been hit in any known
production environment.
Issue 73143:
~ Fixed reading of ef10 data on non-ef10 NIC (i.e. SFN5000 or SFN6000 series)
~ This was detected using KASAN by Stefano Brivio at Redhat:
BUG: KASAN: slab-out-of-bounds in efx_mcdi_mac_stats
Issue 72328:
~ Fix possible overflow of unicast address list. e.g. by configuration of a
32nd macvlan interface all on the same network interface. The error was of
the form:
WARNING: at driver/linux_net/ef10.c:7032 efx_ef10_filter_insert_addr_list+0x4d2/0x510 [sfc]()
### v4.10.7.1001 -- Update release for EOL5
Issue 51996:
~ Kernel compatibility fix for early RHEL 6.x releases. WQ_MEM_RECLAIM was
not defined.
### v4.10.7.1000 -- Update release to match EO5 release
[General changes]
~ Kernel compatibility for RHEL 7.4
~ Change to newer API to avoid the following deprecation warning:
hwmon_device_register() is deprecated.
Please convert the driver to use hwmon_device_register_with_info().
~ Expose the sfc_pps work queue in sysfs so that CPU affinity can be
controlled.
### v4.10.6.1002 -- Update release (SF17.1)
[General changes]:
~ Kernel compatibility extended to Linux 4.11.
~ Adjust to core networking busy polling support available in Linux 4.11.
[XDP preview]
~ Preview of RX side XDP support.
~ This allows for RX filtering to use the DROP target and for RX packet
modification (e.g. decapsulation).
~ Additionally header expansion is supported (e.g. encapsulation).
Issue 69569:
~ Fix timestamp being 1s behind if the minor nanosecond timestamp happened to
be exactly on 0.
### v4.10.4.1005 -- GA release to match openonload-201606-u1.2
[General changes]
~ Kernel compatability extended to Linux 4.10.
Issue 68158:
~ Fix driver build without PTP support.
Issue 67994:
~ Fix for pps_get_ts() only returning microsecond resolution with RHEL 7.2.
~ (Note this did not affect other RHEL 7.X releases).
~ This would affect the PTP convergence accuracy that is achieved.
### v4.10.4.1000 -- GA release for ESXi adding support for SFN8542 adapters.
[General VMware ESXi 5.5, 6.0 and 6.5 support]
~ GA support for ESXi and SFN8542 Solarflare adapters.
~ Support VXLAN acceleration for ESXi.
### v4.10.0.1025 -- GA release for overlays support on SFN8XXX adapters.
[General changes]
~ Improve error message when a TX queue times out to give more information.
Issue 66936:
~ Ensure the packet prefix is available to timestamping.
~ Without this patch invalid memory accesses to addresses ending 0xfb
will be seen in __efx_rx_skb_attach_timestamp() if GRO or LRO is being used.
Issue 66058:
~ Clear napi_hash related state when copying channels.
~ This is only seen on driver unload when >256 NAPI channels are being used
(across all adapters on the server; partly determined by the sfc module
parameter "rss_cpus").
~ This has been seen to cause:
- general protection fault in efx_stop_all+0x38a/0x5a0.
- kernel NULL pointer dereference in napi_hash_add+0x59/0xc0.
[Stratus ftServer support] - Note these issues only affect PCI hot-plug cases:
Issue 67007:
~ Fix race between efx_pci_remove_main() and efx_irq_notify().
Issue 61922:
~ Hold RTNL while we modify the CPU channel map.
### v4.10.0.1011 -- Intermediate release as part of openonload-201606-u1
[General changes]
~ GA release of acceleration for overlay networks, VxLAN / NV-GRE / GENEVE
(previously beta)
~ Check MTU against minimum threshold.
~ Better detection of BIOS/kernel failing to provide addresses for PCI BARs.
Issue 66869 (ESX only):
~ Fix a race in the admin side of MCDI proxy authorization.
~ The error message reported would be of the form:
efx_proxy_auth_handle_request: invalid req state 5
Issue 65427:
~ Correctly report UDP RSS hashing mode as 2-tuple (address only) or 4-tuple
(address and port) with "ethtool -n <intf> rx-flow-hash udp4"
Issue 65511:
~ Avoid kernel warning from efx_ef10_ev_process() when the sfc.ko module
parameter forward_fcs=1, as CRCs should be ignored in this case.
Issue 65013:
~ An interaction with the kernel stack can lead to no traffic being transmitted
if a very small (less than 68) MTU is set. The driver will now reject such
configurations as invalid.
Issue 64919:
~ Fix crash seen in efx_pci_probe_main() when sf-boot pf-count was altered and
the driver was reloaded.
Issue 64574/65176 (SFN8XXX only):
~ Packets with transmit timestamps with the xmit_more flag (set by the kernel
queuing discipline) could be delayed before transmission, causing missing
packet reports from PTP daemons. In unusual cases this could lead to
TX watchdog timeouts.
~ The sfptpd error message reported would be of the form:
sfptpd: retrieved transmit timestamp but no packet
kernel: sfc 0000:82:00.1 sfc1: TX queue 4 spurious TX completion id 1a
### v4.9.0.1016 -- GA release adding support for SFN8542 adapters.
Please note that network interface names may change across this driver update.
See issue 64065 below.
Support for stateless checksum offloads for NVGRE,VXLAN,GENEVE encapsulation on
SFN8XXX adapters is still considered a BETA at this time.
[General changes]
~ Fail gracefully when PCIe BARs are unassigned (better detection of BIOS
issues which have been seen after a PCI bus rescan).
~ Add support for software TX timestamping.
[SFN8000 series support]
~ Add support for "ethtool -C stats-block-usecs".
Default is 1 sec, but this can be reduced in order to accurately sample every
second from a script.
[overlays support]
~ Add encap TNI to debugfs filter dump.
~ Set UDP tunnel port list (for GENEVE and VxLAN) on driver load. This may
cause the microcontroller on the adapter to reboot in order to reprogram
some elements in the adapter datapath.
Issue 64478:
~ In firmware-variant=low-latency if there are more than 256 multicast filter
subscriptions then use multicast promiscuous.
Issue 64065:
~ Stop setting dev_port and instead implement get_phys_port_id for PFs. This
makes network interface names assigned by systemd more consistent with other
network drivers e.g. enp130s0f1d1 becomes enp130s0f1.
Issue 64013:
~ Correct a kernel WARNING in skb_checksum_help() when using TSO over a VLAN
over a bond. The error message seen would be:
WARNING: at net/core/dev.c:1907 skb_warn_bad_offload+0xc2/0xf0()
This issue was introduced between v4.7.0.1035 and .1036.
Issue 63865:
~ Fix checking of PTP license when interface is taken down and then up. This
would affect MCFW <v6 on SFN7XXX when running sfptpd or ptp4l. The error
message seen would be:
warning: received Sync with no timestamp
Issue 63820:
~ Improve clean up after "ethtool -t" self-test failure.
Issue 63587:
~ Fix crash seen with EnterpriseOnload v4 at driver/linux_net/ef10.c:4484
in efx_ef10_filter_get_unsafe_id(). This was found in an internal test case
that exhausted hardware filters and is believed to be highly unlikely in a
customer deployment.
Issue 63467:
~ Limit TX ring to 2048 descriptors for SFN7XXX and SFN8XXX adapters.
Previously it was possible to get a WARNING from efx_ef10_tx_init() by using:
ethtool -G <interface name> tx 4096
Issue 63389:
~ Prevent allocating a PTP interrupt in some cases where it is not required.
Issue 62350:
~ Only claim checksum offload for encapsulation types that SFN8XXX hardware
can handle (GENEVE, VXLAN, NVGRE).
Issue 61338:
~ Fix for VFs being broken after sfupdate was run while onload stacks were
constructed.
The error message seen would be:
resetting (DATAPATH)
failed to restore vswitching rc=-71, VFs may not function
unable to restore all filters
### v4.8.4.1000 -- GA release for ESXi adding support for SFN8522 adapters.
[SFN8522 support]
~ GA support for ESXi and SFN8522 Solarflare adapters.
~ Please note that VXLAN acceleration for ESXi, including VXLAN IOVP
certification, will follow in a future driver update.
### v4.8.2.1004 -- GA release adding support for SFN8522 adapters.
[SFN8522 support]
~ GA support for SFN8522 Solarflare adapters, to match all features of the
SFN7XXX series including SR-IOV and NIC partitioning.
~ Support for more efficient TSO on SFN8XXX adapters.
~ Use a symmetric RSS hash by default.
This is most useful when sniffing both sides of a TCP conversation. This
ensures that all packets are directed to the same RX queue and all are
handled in-order.
~ Add "tso_version" and "csum_offload" to TX queue information in debugfs.
~ Attach hardware RX timestamps to SKBs in GRO and LRO code-paths.
~ Support IPv6 flow-steering in ethtool rxnfc API (still needs support in
ethtool)
~ Support encap-over-IPv6 in ethtool n-tuple API (still needs support in
ethtool)
~ Support for SKB xmit_more flags in compatible kernels.
~ Change to use the 4-tuple UDP RSS hashing, as the resulting hash value will
help improve GRO performance.
~ Read adadpter PCIe configuration to warn on PCIe lane width or speed not
being optimal for the adapter in use.
~ Use 4K PIO buffers on SFN8XXX adapters.
~ Adds a module parameter "performance_profile" to allow selection of
broad tuning options, allowing selection of low latency ('latency') or
high throughput ('throughput') profiles. The default is 'auto', in
which the profile is selected based off licensed options on the adapter.
At present this only changes the event queue initialization options on 8000
series adapters.
[BETA quality support for stateless checksum offloads for NVGRE,VXLAN,GENEVE
encapsulation on SFN8XXX adapters]
~ Support for checksum offloads in the presense of encapsulation/
overlay networks (tunnels) on SFN8XXX hardware. Outer frames of (NV)GRE /
VxLAN / GENEVE are supported. Linux native tunnels and OVS will utilise this
checksum offload.
~ Add support for encapsulated TSO for 8000 series adapters.
~ Add message when adapter resets due to VXLAN port list change.
~ Add debugfs entry "vxlan_ports" to print the list of VXLAN ports.
[onload]
Issue 62104:
~ More conservatively account for the number of wakeup events that the driver
might have to handle, one for each possible onload stack. This prevents
event queue overflows in rare cases.
[EF-VI support]
~ Do not treat a broadcast filter as exclusive in filter logic.
This prevented ef_vi from installing >1 UDP filter with the local IP set
to broadcast.
[Stratus ftServer support]
Issue 57944:
~ Take a read lock on the filter table when performing driverlink (onload/EFVI)
operations on filters; as there was a possible NULL pointer dereference if
there was a race with PCIe hot-plug.
[General fixes]
Issue 62086:
~ On MC reset (e.g. running sfupdate or ethtool -t offline tests), clear PIO
buffer linkage in TXQs. Otherwise, if we fail to allocate new PIO buffers,
TXQs will try to use the old deallocated PIO buffers and this will cause an
error.
Issue 58215:
~ Remove suprious WARNING from efx_hard_start_xmit() seen after "ethtool -t"
off-line self-tests. Use of "ethtool -t" can be identified from
"MC entered BIST mode" in the kernel log.
Issue 57217:
~ Fix taking the network interface into promiscuous (or allmulti) mode when
running with low-latency firmware variant.
i.e "sfboot firmware-variant=ultra-low-latency".
The error message seen would be:
Unicast mismatch filter insert failed rc=-93
Multicast mismatch filter insert failed rc=-93
Issue 41741:
~ Implement shutdown() driver entry point. This helps quiesce the Solarflare
adapter when using kexec to transition to a new kernel. This issue was seen
on IBM POWER machines that raised EEH errors during the kexec.
Issue 33781:
~ "ethtool -S" statistic "port_rx_bad_bytes" was not being correctly reset in
all cases.
### v4.7.1.1000 -- Update release
[General changes]
~ Build fixes for linux 4.5 kernels.
~ Provide an option to place external network port PHY into power down when the
network interface is administratively down. This means the link partner also
sees link down. Currently this is controlled via an ethtool private flag:
- To enable/disable:
ethtool --set-priv-flags DEVNAME phy-power-follows-link (on|off)
- To show current state:
ethtool --show-priv-flags DEVNAME
~ support IPv6 flow steering (needs ethtool support that is not yet released).
Issue 53130
~ Create MTD partitions (to allow sfupdate) even if NVRAM metadata cannot
be successfully read.
[Stratus ftServer support]
Issue 60796:
~ Fix efx_mcdi_acquire_sync() returning -ETIMEDOUT on impolite unplug.
### v4.7.0.1049 -- Update release for EOL 4
Issue 65013:
~ Upstream kernel 4.10 centralised checking of minimum and maximum MTU values.
In kernels without this checking the kernel doesn't handle small MTUs
correctly, so we introduce a check for overly small MTU - the new minimum is
68 bytes.
### v4.7.0.1048 -- Update release for EOL 4
Issue 72220:
~ [32bit PHC support]. Fix bug in efx_phc_gettime32() that returns junk time.
~ This only affects systems without 64bit PHC support e.g. some SLES11
(kernel 3.0.101)
Issue 73143:
~ Fixed reading of ef10 data on non-ef10 NIC (i.e. SFN5000 or SFN6000 series)
~ This was detected using KASAN by Stefano Brivio at Redhat:
BUG: KASAN: slab-out-of-bounds in efx_mcdi_mac_stats
Issue 72328:
~ Fix possible overflow of unicast address list. e.g. by configuration of a
32nd macvlan interface all on the same network interface. The error was of
the form:
WARNING: at driver/linux_net/ef10.c:7032 efx_ef10_filter_insert_addr_list+0x4d2/0x510 [sfc]()
### v4.7.0.1046 -- Update release for EOL 3
Please note that network interface names may change across this driver update.
See issue 64065 below.
[General changes]
~ Build fixes for linux 4.10 kernels.
~ Build fixes for RHEL 7.4 kernels.
~ Provide an option to place external network port PHY into power down when the
network interface is administratively down. This means the link partner also
sees link down. Currently this is controlled via an ethtool private flag:
- To enable/disable:
ethtool --set-priv-flags DEVNAME phy-power-follows-link (on|off)