ibmvnic: Introduce xmit_more support using batched subCRQ hcalls

Browse source

Include support for the xmit_more feature utilizing the
H_SEND_SUB_CRQ_INDIRECT hypervisor call which allows the sending
of multiple subordinate Command Response Queue descriptors in one
hypervisor call via a DMA-mapped buffer. This update reduces hypervisor
calls and thus hypervisor call overhead per TX descriptor.

Signed-off-by: Thomas Falcon <tlfalcon@linux.ibm.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

...

This commit is contained in:

Thomas Falcon 2020-11-18 19:12:19 -06:00 • committed by Jakub Kicinski

parent 4f0b6812e9

commit 0d97338818

1 changed files with 139 additions and 65 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

206

drivers/net/ethernet/ibm/ibmvnic.c

View file