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| author | David S. Miller <davem@davemloft.net> | 2020-07-09 23:15:30 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-07-09 23:15:30 +0300 |
| commit | 8fb49c0109f47e4a25e8ba36abd8381afbfa7a08 (patch) | |
| tree | 2b29fc5bcaa3787987243f649c682c642839bdaf /drivers/net/netdevsim/dev.c | |
| parent | faea30ed717d78e890f3fc0d96ceb6aba2baa4c4 (diff) | |
| parent | f3348a82e72795ce218264fd00ef5cf5137836a9 (diff) | |
| download | linux-8fb49c0109f47e4a25e8ba36abd8381afbfa7a08.tar.xz | |
Merge branch 'Expose-port-split-attributes'
Ido Schimmel says:
====================
Expose port split attributes
Danielle says:
Currently, user space has no way of knowing if a port can be split and
into how many ports. Among other things, this makes it impossible to
write generic tests for port split functionality.
Therefore, this set exposes two new devlink port attributes to user
space: Number of lanes and whether the port can be split or not.
Patch set overview:
Patches #1-#4 cleanup 'struct devlink_port_attrs' and reduce the number
of parameters passed between drivers and devlink via
devlink_port_attrs_set()
Patch #5 adds devlink port lanes attributes
Patches #6-#7 add devlink port splittable attribute
Patch #8 exploits the fact that devlink is now aware of port's number of
lanes and whether the port can be split or not and moves some checks
from drivers to devlink
Patch #9 adds a port split test
Changes since v2:
* Remove some local variables from patch #3
* Reword function description in patch #5
* Fix a bug in patch #8
* Add a test for the splittable attribute in patch #9
Changes since v1:
* Rename 'width' attribute to 'lanes'
* Add 'splittable' attribute
* Move checks from drivers to devlink
====================
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/netdevsim/dev.c')
| -rw-r--r-- | drivers/net/netdevsim/dev.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/net/netdevsim/dev.c b/drivers/net/netdevsim/dev.c index ec6b6f7818ac..0dc2c66a5d56 100644 --- a/drivers/net/netdevsim/dev.c +++ b/drivers/net/netdevsim/dev.c @@ -889,6 +889,7 @@ static const struct devlink_ops nsim_dev_devlink_ops = { static int __nsim_dev_port_add(struct nsim_dev *nsim_dev, unsigned int port_index) { + struct devlink_port_attrs attrs = {}; struct nsim_dev_port *nsim_dev_port; struct devlink_port *devlink_port; int err; @@ -899,10 +900,11 @@ static int __nsim_dev_port_add(struct nsim_dev *nsim_dev, nsim_dev_port->port_index = port_index; devlink_port = &nsim_dev_port->devlink_port; - devlink_port_attrs_set(devlink_port, DEVLINK_PORT_FLAVOUR_PHYSICAL, - port_index + 1, 0, 0, - nsim_dev->switch_id.id, - nsim_dev->switch_id.id_len); + attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL; + attrs.phys.port_number = port_index + 1; + memcpy(attrs.switch_id.id, nsim_dev->switch_id.id, nsim_dev->switch_id.id_len); + attrs.switch_id.id_len = nsim_dev->switch_id.id_len; + devlink_port_attrs_set(devlink_port, &attrs); err = devlink_port_register(priv_to_devlink(nsim_dev), devlink_port, port_index); if (err) |