i40e: Fix incorrect netdev's real number of RX/TX queues
authorJedrzej Jagielski <jedrzej.jagielski@intel.com>
Fri, 17 Dec 2021 14:29:05 +0000 (14:29 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 11 Jan 2022 14:24:59 +0000 (15:24 +0100)
commitc859c4de0bd7f97415569d4c4febd6316701b31a
tree1c7eadf070e93537809a6106dd35668696514596
parentd0ad64438fb5019947988bbf9b4af5275f4596a0
i40e: Fix incorrect netdev's real number of RX/TX queues

commit e738451d78b2f8a9635d66c6a87f304b4d965f7a upstream.

There was a wrong queues representation in sysfs during
driver's reinitialization in case of online cpus number is
less than combined queues. It was caused by stopped
NetworkManager, which is responsible for calling vsi_open
function during driver's initialization.
In specific situation (ex. 12 cpus online) there were 16 queues
in /sys/class/net/<iface>/queues. In case of modifying queues with
value higher, than number of online cpus, then it caused write
errors and other errors.
Add updating of sysfs's queues representation during driver
initialization.

Fixes: 41c445ff0f48 ("i40e: main driver core")
Signed-off-by: Lukasz Cieplicki <lukaszx.cieplicki@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/net/ethernet/intel/i40e/i40e_main.c