diff options
| author | Parav Pandit <parav@nvidia.com> | 2024-04-06 04:05:37 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2024-04-08 14:10:45 +0100 |
| commit | 5af3e3876d567fb79a355bec1cb48e432d69b4fb (patch) | |
| tree | 7a8dfac7420d2c8e4c7e0494f28855c91625d533 /include/net/devlink.h | |
| parent | 4308811ba90118ae1b71a95fee79ab7dada6400c (diff) | |
devlink: Support setting max_io_eqs
Many devices send event notifications for the IO queues,
such as tx and rx queues, through event queues.
Enable a privileged owner, such as a hypervisor PF, to set the number
of IO event queues for the VF and SF during the provisioning stage.
example:
Get maximum IO event queues of the VF device::
$ devlink port show pci/0000:06:00.0/2
pci/0000:06:00.0/2: type eth netdev enp6s0pf0vf1 flavour pcivf pfnum 0 vfnum 1
function:
hw_addr 00:00:00:00:00:00 ipsec_packet disabled max_io_eqs 10
Set maximum IO event queues of the VF device::
$ devlink port function set pci/0000:06:00.0/2 max_io_eqs 32
$ devlink port show pci/0000:06:00.0/2
pci/0000:06:00.0/2: type eth netdev enp6s0pf0vf1 flavour pcivf pfnum 0 vfnum 1
function:
hw_addr 00:00:00:00:00:00 ipsec_packet disabled max_io_eqs 32
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Parav Pandit <parav@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/devlink.h')
| -rw-r--r-- | include/net/devlink.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/net/devlink.h b/include/net/devlink.h index 9ac394bdfbe4..bb1af599d101 100644 --- a/include/net/devlink.h +++ b/include/net/devlink.h @@ -1602,6 +1602,14 @@ void devlink_free(struct devlink *devlink); * capability. Should be used by device drivers to * enable/disable ipsec_packet capability of a * function managed by the devlink port. + * @port_fn_max_io_eqs_get: Callback used to get port function's maximum number + * of event queues. Should be used by device drivers to + * report the maximum event queues of a function + * managed by the devlink port. + * @port_fn_max_io_eqs_set: Callback used to set port function's maximum number + * of event queues. Should be used by device drivers to + * configure maximum number of event queues + * of a function managed by the devlink port. * * Note: Driver should return -EOPNOTSUPP if it doesn't support * port function (@port_fn_*) handling for a particular port. @@ -1651,6 +1659,12 @@ struct devlink_port_ops { int (*port_fn_ipsec_packet_set)(struct devlink_port *devlink_port, bool enable, struct netlink_ext_ack *extack); + int (*port_fn_max_io_eqs_get)(struct devlink_port *devlink_port, + u32 *max_eqs, + struct netlink_ext_ack *extack); + int (*port_fn_max_io_eqs_set)(struct devlink_port *devlink_port, + u32 max_eqs, + struct netlink_ext_ack *extack); }; void devlink_port_init(struct devlink *devlink, |