mbox series

[net-next,0/3] ibmvnic: Implement driver-defined queue limits

Message ID 1538177906-17068-1-git-send-email-tlfalcon@linux.ibm.com
Headers show
Series ibmvnic: Implement driver-defined queue limits | expand

Message

Thomas Falcon Sept. 28, 2018, 11:38 p.m. UTC 
In this patch series, update the ibmvnic driver to use driver-defined
queue limits instead of limits imposed by the Virtual I/O server
management partition. For some deviced, initial max queue size and
amount limits, despite their definition, can actually be exceeded if
the client driver requests it. With this in mind, define a private
ethtool flag that toggles the use of driver-defined limits. These
limits are currently more than what supported hardware will likely
allow, so the driver will attempt to get as close as possible to
the user request but may not fully succeed.

Thomas Falcon (3):
  ibmvnic: Increase maximum queue size limit
  ibmvnic: Introduce driver limits for ring sizes
  ibmvnic: Add ethtool private flag for driver-defined queue limits

 drivers/net/ethernet/ibm/ibmvnic.c | 129 +++++++++++++++++++++++++++----------
 drivers/net/ethernet/ibm/ibmvnic.h |   9 ++-
 2 files changed, 102 insertions(+), 36 deletions(-)

Comments

David Miller Oct. 2, 2018, 6:31 a.m. UTC | #1 
From: Thomas Falcon <tlfalcon@linux.ibm.com>
Date: Fri, 28 Sep 2018 18:38:23 -0500

> In this patch series, update the ibmvnic driver to use driver-defined
> queue limits instead of limits imposed by the Virtual I/O server
> management partition. For some deviced, initial max queue size and
> amount limits, despite their definition, can actually be exceeded if
> the client driver requests it. With this in mind, define a private
> ethtool flag that toggles the use of driver-defined limits. These
> limits are currently more than what supported hardware will likely
> allow, so the driver will attempt to get as close as possible to
> the user request but may not fully succeed.

Series applied.