kernel 4.18 supports Coalesce adaptive TX
====================================================================
uname -a
Linux xgene3 4.18.0-16-generic #17~18.04.1-Ubuntu SMP Tue Feb 12 13:35:39 UTC
2019 aarch64 aarch64 aarch64 GNU/Linux
lspci -vvv
0000:01:00.0 Ethernet controller: Mellanox Technologies MT27710 Family
[ConnectX-4 Lx]
Subsystem: Mellanox Technologies MT27710 Family [ConnectX-4 Lx]
ethtool -i enp1s0
driver: mlx5_core
version: 5.0-0
firmware-version: 14.24.1000 (MT_2430110032)
expansion-rom-version:
bus-info: 0000:01:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: no
supports-register-dump: no
supports-priv-flags: yes
ethtool -c enp1s0
Coalesce parameters for enp1s0:
Adaptive RX: on TX: on
stats-block-usecs: 0
sample-interval: 0
pkt-rate-low: 0
pkt-rate-high: 0
rx-usecs: 8
rx-frames: 128
rx-usecs-irq: 0
rx-frames-irq: 0
tx-usecs: 8
tx-frames: 128
tx-usecs-irq: 0
tx-frames-irq: 0
rx-usecs-low: 0
rx-frame-low: 0
tx-usecs-low: 0
tx-frame-low: 0
rx-usecs-high: 0
rx-frame-high: 0
tx-usecs-high: 0
tx-frame-high: 0
lsmod
Module Size Used by
nls_iso8859_1 16384 1
rndis_wlan 57344 0
rndis_host 16384 1 rndis_wlan
cdc_ether 16384 1 rndis_host
usbnet 49152 3 rndis_wlan,rndis_host,cdc_ether
cfg80211 733184 1 rndis_wlan
joydev 28672 0
input_leds 16384 0
ipmi_ssif 28672 0
ipmi_devintf 20480 0
ipmi_msghandler 57344 2 ipmi_devintf,ipmi_ssif
xgene_hwmon 20480 0
cppc_cpufreq 16384 0
sch_fq_codel 20480 33
ib_iser 49152 0
rdma_cm 65536 1 ib_iser
iw_cm 40960 1 rdma_cm
ib_cm 61440 1 rdma_cm
iscsi_tcp 20480 0
libiscsi_tcp 28672 1 iscsi_tcp
libiscsi 53248 3 libiscsi_tcp,iscsi_tcp,ib_iser
scsi_transport_iscsi 110592 3 iscsi_tcp,ib_iser,libiscsi
ip_tables 28672 0
x_tables 45056 1 ip_tables
autofs4 53248 2
hid_generic 16384 0
usbhid 61440 0
hid 131072 2 usbhid,hid_generic
btrfs 1273856 0
zstd_compress 159744 1 btrfs
raid10 57344 0
raid456 167936 0
async_raid6_recov 20480 1 raid456
async_memcpy 16384 2 raid456,async_raid6_recov
async_pq 16384 2 raid456,async_raid6_recov
async_xor 16384 3 async_pq,raid456,async_raid6_recov
async_tx 16384 5
async_pq,async_memcpy,async_xor,raid456,async_raid6_recov
xor 20480 2 async_xor,btrfs
uas 24576 0
usb_storage 69632 1 uas
raid6_pq 106496 4 async_pq,btrfs,raid456,async_raid6_recov
libcrc32c 16384 2 btrfs,raid456
raid1 40960 0
raid0 20480 0
multipath 20480 0
linear 16384 0
mlx5_ib 237568 0
ib_uverbs 106496 1 mlx5_ib
ib_core 266240 6 rdma_cm,iw_cm,ib_iser,ib_uverbs,mlx5_ib,ib_cm
dwc3 151552 0
ulpi 16384 1 dwc3
udc_core 57344 1 dwc3
ast 61440 1
mlx5_core 671744 1 mlx5_ib
ttm 118784 1 ast
aes_ce_blk 28672 0
aes_ce_cipher 16384 1 aes_ce_blk
drm_kms_helper 196608 1 ast
crc32_ce 16384 3
crct10dif_ce 16384 0
syscopyarea 16384 1 drm_kms_helper
ghash_ce 20480 0
sysfillrect 16384 1 drm_kms_helper
sha2_ce 16384 0
sysimgblt 16384 1 drm_kms_helper
tls 57344 1 mlx5_core
sha256_arm64 24576 1 sha2_ce
fb_sys_fops 16384 1 drm_kms_helper
igb 229376 0
sha1_ce 16384 0
mlxfw 20480 1 mlx5_core
drm 471040 4 drm_kms_helper,ast,ttm
i2c_algo_bit 16384 2 igb,ast
devlink 53248 1 mlx5_core
ahci_platform 16384 2
libahci_platform 20480 1 ahci_platform
libahci 40960 2 libahci_platform,ahci_platform
i2c_xgene_slimpro 16384 0
gpio_dwapb 20480 0
xhci_plat_hcd 20480 0
aes_neon_bs 24576 1
aes_neon_blk 28672 1 aes_neon_bs
crypto_simd 16384 3 aes_neon_bs,aes_ce_blk,aes_neon_blk
cryptd 28672 1 crypto_simd
aes_arm64 16384 5
aes_neon_bs,aes_ce_cipher,ghash_ce,aes_ce_blk,aes_neon_blk
====================================================================
kernel 4.15 does NOT support Coalesce adaptive TX
====================================================================
uname -a
Linux x8168 4.15.0-46-generic #49-Ubuntu SMP Wed Feb 6 09:33:07 UTC 2019 x86_64
x86_64 x86_64 GNU/Linux
lspci -vvv
65:00.0 Ethernet controller: Mellanox Technologies MT27800 Family [ConnectX-5]
Subsystem: Mellanox Technologies MT27800 Family [ConnectX-5]
ethtool -i enp101s0f0
driver: mlx5_core
version: 5.0-0
firmware-version: 16.24.1000 (MT_0000000090)
expansion-rom-version:
bus-info: 0000:65:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: no
supports-register-dump: no
supports-priv-flags: yes
ethtool -c enp101s0f0
Coalesce parameters for enp101s0f0:
Adaptive RX: on TX: off
stats-block-usecs: 0
sample-interval: 0
pkt-rate-low: 0
pkt-rate-high: 0
rx-usecs: 8
rx-frames: 128
rx-usecs-irq: 0
rx-frames-irq: 0
tx-usecs: 16
tx-frames: 32
tx-usecs-irq: 0
tx-frames-irq: 0
rx-usecs-low: 0
rx-frame-low: 0
tx-usecs-low: 0
tx-frame-low: 0
rx-usecs-high: 0
rx-frame-high: 0
tx-usecs-high: 0
tx-frame-high: 0
lsmod
Module Size Used by
ipmi_ssif 32768 0
nls_iso8859_1 16384 1
intel_rapl 20480 0
skx_edac 16384 0
x86_pkg_temp_thermal 16384 0
intel_powerclamp 16384 0
coretemp 16384 0
kvm_intel 212992 0
kvm 598016 1 kvm_intel
irqbypass 16384 1 kvm
dcdbas 16384 0
intel_cstate 20480 0
intel_rapl_perf 16384 0
lpc_ich 24576 0
mei_me 40960 0
shpchp 36864 0
mei 90112 1 mei_me
ipmi_si 61440 0
ipmi_devintf 20480 0
ipmi_msghandler 53248 3 ipmi_devintf,ipmi_si,ipmi_ssif
acpi_power_meter 20480 0
mac_hid 16384 0
sch_fq_codel 20480 49
ib_iser 49152 0
rdma_cm 61440 1 ib_iser
iw_cm 45056 1 rdma_cm
ib_cm 53248 1 rdma_cm
iscsi_tcp 20480 0
libiscsi_tcp 20480 1 iscsi_tcp
libiscsi 53248 3 libiscsi_tcp,iscsi_tcp,ib_iser
scsi_transport_iscsi 98304 3 iscsi_tcp,ib_iser,libiscsi
ip_tables 28672 0
x_tables 40960 1 ip_tables
autofs4 40960 2
btrfs 1122304 0
zstd_compress 163840 1 btrfs
raid10 53248 0
raid456 143360 0
async_raid6_recov 20480 1 raid456
async_memcpy 16384 2 raid456,async_raid6_recov
async_pq 16384 2 raid456,async_raid6_recov
async_xor 16384 3 async_pq,raid456,async_raid6_recov
async_tx 16384 5
async_pq,async_memcpy,async_xor,raid456,async_raid6_recov
xor 24576 2 async_xor,btrfs
raid6_pq 114688 4 async_pq,btrfs,raid456,async_raid6_recov
libcrc32c 16384 1 raid456
raid1 40960 0
raid0 20480 0
multipath 16384 0
linear 16384 0
mlx5_ib 196608 0
ib_core 225280 5 rdma_cm,iw_cm,ib_iser,mlx5_ib,ib_cm
mgag200 45056 1
i2c_algo_bit 16384 1 mgag200
ttm 106496 1 mgag200
crct10dif_pclmul 16384 0
crc32_pclmul 16384 0
drm_kms_helper 172032 1 mgag200
ghash_clmulni_intel 16384 0
pcbc 16384 0
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
aesni_intel 188416 0
mlx5_core 544768 1 mlx5_ib
sysimgblt 16384 1 drm_kms_helper
mlxfw 20480 1 mlx5_core
fb_sys_fops 16384 1 drm_kms_helper
aes_x86_64 20480 1 aesni_intel
devlink 45056 1 mlx5_core
mpt3sas 241664 2
crypto_simd 16384 1 aesni_intel
ptp 20480 1 mlx5_core
raid_class 16384 1 mpt3sas
glue_helper 16384 1 aesni_intel
cryptd 24576 3 crypto_simd,ghash_clmulni_intel,aesni_intel
pps_core 20480 1 ptp
drm 401408 4 drm_kms_helper,mgag200,ttm
scsi_transport_sas 40960 1 mpt3sas
ahci 40960 0
libahci 32768 1 ahci
====================================================================
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1832641
Title:
4.15.0-46-generic doesn't support ethtool adaptive-tx for mlx5 card
Status in linux package in Ubuntu:
Incomplete
Bug description:
Ubuntu Bionic 18.04 LTS:
We found that default bionic kernel 4.15.0-46-generic doesn't support ethtool
-C adaptive-tx
Our ethernet card is Mellanox Connect4-Lx and Connect5, and this will affect
performance of latency sensitive workloads like memcached.
Maybe we should backport adaptive-tx support to kernel 4.15 LTS?
Xeon Skylake 8168 x86_64:
ubuntu kernel 4.15.0-46-generic
eth: mlx5 connect-5
ethtool doesn't support adaptive-tx (ethernet TX interrupt coalesce)
X-Gene3 aarch64:
ubuntu kernel 4.18.0-16-generic, eth: mlx5 connect-4lx
ethtool supports adaptive-tx (ethernet TX interrupt coalesce)
Same Xeon Skylake 8168 x86_64
latest kernel 5.2.0-rc2
eth: mlx5 connect-5
ethtool supports adaptive-tx (ethernet TX interrupt coalesce)
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1832641/+subscriptions
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