nfp: allow application firmware to limit number of SR-IOV VFs

Browse source

Some application firmware projects may choose to limit the number
of VFs available below what is specified in PCI capability to be
able to reuse the PCIe interface resources.  There may also be
projects which use cases don't require SR-IOV support at all and
therefore don't want to spend time implementing/testing it.

Check nfd_vf_cfg_max_vfs firmware symbol to see if application
firmware is reporting how many VFs it supports.  This mechanism
is an opt-in, if symbol is not present we will only look at the
PCI capability values.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

This commit is contained in:

Jakub Kicinski 2017-02-19 11:58:14 -08:00 • committed by David S. Miller

parent 372d504575

commit 0bc3827f8c

2 changed files with 27 additions and 0 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

25

drivers/net/ethernet/netronome/nfp/nfp_main.c

View file

2

drivers/net/ethernet/netronome/nfp/nfp_main.h

View file