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path: root/drivers/net/ethernet/intel/ixd
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2026-08-12ixd: add devlink supportAmritha Nambiar
Enable initial support for the devlink interface with the ixd driver. The ixd hardware is a single function PCIe device. So, the PCIe adapter gets its own devlink instance to manage device-wide resources or configuration. $ devlink dev show pci/0000:83:00.6 $ devlink dev info pci/0000:83:00.6 pci/0000:83:00.6: driver ixd serial_number 00-a0-c9-ff-ff-23-45-67 versions: fixed: device.type MEV running: fw.mgmt.api 2.0 Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com> Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com> Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Tested-by: Bharath R <Bharath.r@intel.com> Signed-off-by: Larysa Zaremba <larysa.zaremba@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2026-08-12ixd: add the core initializationLarysa Zaremba
As the mailbox is setup, initialize the core. This makes use of the send and receive mailbox message framework for virtchnl communication between the driver and device Control Plane (CP). To start with, driver confirms the virtchnl version with the CP. Once that is done, it requests and gets the required capabilities and resources needed such as max vectors, queues, vports etc. Use a unified way of handling the virtchnl messages, where a single function handles all related memory management and the caller only provides the callbacks to fill the send buffer and to handle the response. Place generic control queue message handling separately to facilitate the addition of protocols other than virtchannel in the future. Co-developed-by: Amritha Nambiar <amritha.nambiar@intel.com> Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com> Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Tested-by: Bharath R <Bharath.r@intel.com> Signed-off-by: Larysa Zaremba <larysa.zaremba@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2026-08-12ixd: add reset checks and initialize the mailboxLarysa Zaremba
At the end of the probe, trigger hard reset, initialize and schedule the after-reset task. If the reset is complete in a pre-determined time, initialize the default mailbox, through which other resources will be negotiated. Co-developed-by: Amritha Nambiar <amritha.nambiar@intel.com> Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com> Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Tested-by: Bharath R <Bharath.r@intel.com> Signed-off-by: Larysa Zaremba <larysa.zaremba@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2026-08-12ixd: add basic driver framework for Intel(R) Control Plane FunctionLarysa Zaremba
Add module register and probe functionality. Add the required support to register IXD PCI driver, as well as probe, remove and shutdown callbacks. Enable the PCI device and request to reserve the memory resources that will be used by the driver. Finally map the BAR0 address space. For now, use devm_kzalloc() to allocate adapter, as it requires the least amount of code. In a later commit, it will be replaced with a devlink alternative. Co-developed-by: Amritha Nambiar <amritha.nambiar@intel.com> Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com> Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com> Tested-by: Bharath R <Bharath.r@intel.com> Signed-off-by: Larysa Zaremba <larysa.zaremba@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>