On Wed, May 18, 2016 at 6:19 PM, Gilboa Davara <gilb...@gmail.com> wrote:
> Hello all,
>
> We are developing a (non-DPDK-based) security product that uses
> multiple Intel Intel NICs to monitor high speed traffic via passive
> taps.
> We recently ported our in-kernel software to use the latest i40e
> drivers (1.5.16/18) up from 1.2.38 and we are faced with an odd
> problem: Moving device to promisc mode (via dev_set_promiscuity and/or
> via ifconfig) no longer forces the hardware into
> dumb-packet-capture-mode. (We do see 'device switched to promisc mode'
> kernel log messages).
> Looking at the driver's own performance counters in
> i40e_update_vsi_stats (and ethtool -S) we see near-zero rx_packet
> counters and no rx_dropped/rx_errors.
> Placing a hook inside i40e_clean_rx_irq and confirms that the driver
> is completely idle.
>
> As the title suggests, switching back to 1.2.38 solves the problem.
>
> - System(s): HP DL160, DL380 and DL560.
> - OS / kernels:
>   * Fedora 23, Linux 4.4 and 4.5.
>   * CentOS 7.1. Linux 3.10 (RHEL).
> - RSS: 9 per link.
> - Link type / speed: QSFP+, 40GbE.
> - Additional information (ethtool -i) follows
>
> Are we missing something?
>
> Thanks for the help,
> - Gilboa

Hello all,

Short follow up.
FWIW I've upgraded the NVM on all NICs to 4.5.3 to no avail.

$ for DEVICE in pci1p0 pci1p1 pci2p0 pci2p1 pci3p0 pci3p1 pci4p0
pci4p1 ; do echo ---- ; echo device: $DEVICE ; ethtool -i $DEVICE ;
done
----
device: pci1p0
driver: i40e
version: 1.5.18
firmware-version: 4.53 0x80001dca 0.0.0
expansion-rom-version:
bus-info: 0000:4a:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes
----
device: pci1p1
driver: i40e
version: 1.5.18
firmware-version: 4.53 0x80001dca 0.0.0
expansion-rom-version:
bus-info: 0000:4a:00.1
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes
----
device: pci2p0
driver: i40e
version: 1.5.18
firmware-version: 4.53 0x80001dca 0.0.0
expansion-rom-version:
bus-info: 0000:04:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes
----
device: pci2p1
driver: i40e
version: 1.5.18
firmware-version: 4.53 0x80001dca 0.0.0
expansion-rom-version:
bus-info: 0000:04:00.1
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes
----
device: pci3p0
driver: i40e
version: 1.5.18
firmware-version: 4.53 0x80001dca 0.0.0
expansion-rom-version:
bus-info: 0000:07:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes
----
device: pci3p1
driver: i40e
version: 1.5.18
firmware-version: 4.53 0x80001dca 0.0.0
expansion-rom-version:
bus-info: 0000:07:00.1
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes
----
device: pci4p0
driver: i40e
version: 1.5.18
firmware-version: 4.53 0x80001dca 0.0.0
expansion-rom-version:
bus-info: 0000:41:00.0
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes
----
device: pci4p1
driver: i40e
version: 1.5.18
firmware-version: 4.53 0x80001dca 0.0.0
expansion-rom-version:
bus-info: 0000:41:00.1
supports-statistics: yes
supports-test: yes
supports-eeprom-access: yes
supports-register-dump: yes
supports-priv-flags: yes

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