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 14:35:13 +0000 (15:35 +0100)
commit61169d6c77de1cab3ff135a278a0e321bc9b554d
tree432db1f25ce301dc7911dafec475d43a027b54de
parent7b177d34a1235780a630497487d9dc0cf6e72e21
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