diff options
| author | Alexandra Winter <wintera@linux.ibm.com> | 2025-09-18 13:04:57 +0200 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2025-09-23 11:13:22 +0200 |
| commit | 92a0f7bb081dde6e88368816b8ba51352ddabb1d (patch) | |
| tree | 090f7e99694399afa6ded1d4475c90def0c84434 /include/linux | |
| parent | 05e68d8dedf34f270cc3769ffe7f0ed413f23add (diff) | |
dibs: Move vlan support to dibs_dev_ops
It can be debated how much benefit definition of vlan ids for dibs devices
brings, as the dmbs are accessible only by a single peer anyhow. But ism
provides vlan support and smcd exploits it, so move it to dibs layer as an
optional feature.
smcd_loopback simply ignores all vlan settings, do the same in
dibs_loopback.
SMC-D and ISM have a method to use the invalid VLAN ID 1FFF
(ISM_RESERVED_VLANID), to indicate that both communication peers support
routable SMC-Dv2. Tolerate it in dibs, but move it to SMC only.
Signed-off-by: Alexandra Winter <wintera@linux.ibm.com>
Link: https://patch.msgid.link/20250918110500.1731261-12-wintera@linux.ibm.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/dibs.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/linux/dibs.h b/include/linux/dibs.h index 904f37505c27..166148fb8d76 100644 --- a/include/linux/dibs.h +++ b/include/linux/dibs.h @@ -133,6 +133,25 @@ struct dibs_dev_ops { * Return: 2 byte dibs fabric id */ u16 (*get_fabric_id)(struct dibs_dev *dev); + /** + * add_vlan_id() - add dibs device to vlan (optional, deprecated) + * @dev: dibs device + * @vlan_id: vlan id + * + * In order to write into a vlan-tagged dmb, the remote device needs + * to belong to the this vlan. A device can belong to more than 1 vlan. + * Any device can access an untagged dmb. + * Deprecated, only supported for backwards compatibility. + * Return: zero on success + */ + int (*add_vlan_id)(struct dibs_dev *dev, u64 vlan_id); + /** + * del_vlan_id() - remove dibs device from vlan (optional, deprecated) + * @dev: dibs device + * @vlan_id: vlan id + * Return: zero on success + */ + int (*del_vlan_id)(struct dibs_dev *dev, u64 vlan_id); }; struct dibs_dev { |