kernel/drivers/net/ethernet/pensando/ionic/ionic_if.h, branch linux-6.18.y

net: ionic: Provide doorbell and CMB region information

2025-09-11T06:18:36Z

The RDMA device needs information of controller memory bar and doorbell capability to share with user context. Discover CMB regions and express doorbell capabilities on device init. Reviewed-by: Shannon Nelson Co-developed-by: Pablo Cascón Signed-off-by: Pablo Cascón Co-developed-by: Allen Hubbe Signed-off-by: Allen Hubbe Signed-off-by: Abhijit Gangurde Link: https://patch.msgid.link/20250903061606.4139957-7-abhijit.gangurde@amd.com Signed-off-by: Leon Romanovsky

net: ionic: Update LIF identity with additional RDMA capabilities

2025-09-11T06:18:35Z

Firmware sends the RDMA capability in a response for LIF_IDENTIFY device command. Update the LIF indentify with additional RDMA capabilities used by driver and firmware. Reviewed-by: Shannon Nelson Reviewed-by: Simon Horman Signed-off-by: Abhijit Gangurde Link: https://patch.msgid.link/20250903061606.4139957-3-abhijit.gangurde@amd.com Signed-off-by: Leon Romanovsky

net: Fix typos

2025-07-25T17:29:07Z

Fix typos in comments and error messages. Signed-off-by: Bjorn Helgaas Reviewed-by: David Arinzon Reviewed-by: Simon Horman Link: https://patch.msgid.link/20250723201528.2908218-1-helgaas@kernel.org Signed-off-by: Jakub Kicinski

ionic: add module eeprom channel data to ionic_if and ethtool

2025-04-22T10:27:30Z

Make the CMIS module type's page 17 channel data available for ethtool to request. As done previously, carve space for this data from the port_info reserved space. In the future, if additional pages are needed, a new firmware AdminQ command will be added for accessing random pages. Reviewed-by: Brett Creeley Signed-off-by: Shannon Nelson Reviewed-by: Simon Horman Link: https://patch.msgid.link/20250415231317.40616-4-shannon.nelson@amd.com Signed-off-by: Paolo Abeni

ionic: support ethtool get_module_eeprom_by_page

2025-04-22T10:27:30Z

Add support for the newer get_module_eeprom_by_page interface. Only the upper half of the 256 byte page is available for reading, and the firmware puts the two sections into the extended sprom buffer, so a union is used over the extended sprom buffer to make clear which page is to be accessed. With get_module_eeprom_by_page implemented there is no need for the older get_module_info or git_module_eeprom interfaces, so remove them. Reviewed-by: Brett Creeley Signed-off-by: Shannon Nelson Reviewed-by: Simon Horman Link: https://patch.msgid.link/20250415231317.40616-3-shannon.nelson@amd.com Signed-off-by: Paolo Abeni

ionic: extend the QSFP module sprom for more pages

2025-04-22T10:27:30Z

Some QSFP modules have more eeprom to be read by ethtool than the initial high and low page 0 that is currently available in the DSC's ionic sprom[] buffer. Since the current sprom[] is baked into the middle of an existing API struct, to make the high end of page 1 and page 2 available a block is carved from a reserved space of the existing port_info struct and the ionic_get_module_eeprom() service is taught how to get there. Newer firmware writes the additional QSFP page info here, yet this remains backward compatible because older firmware sets this space to all 0 and older ionic drivers do not use the reserved space. Reviewed-by: Brett Creeley Signed-off-by: Shannon Nelson Reviewed-by: Simon Horman Link: https://patch.msgid.link/20250415231317.40616-2-shannon.nelson@amd.com Signed-off-by: Paolo Abeni

ionic: add speed defines for 200G and 400G

2024-12-12T11:06:33Z

Add higher speed defines to the ionic_if.h API and decode them in the ethtool get_link_ksettings callback. Signed-off-by: Shannon Nelson Reviewed-by: Jacob Keller Signed-off-by: Paolo Abeni

ionic: add asic codes to firmware interface file

2024-12-12T11:06:32Z

Now that the firmware has learned how to properly report the asic type id, add the values to our interface file. The sharp-eyed reviewers will catch that the CAPRI value changed here from 0 to 1. This comes with the FW actually defining it correctly. This is safe for us to change as nothing actually uses that value yet. Signed-off-by: Shannon Nelson Reviewed-by: Jacob Keller Reviewed-by: Kalesh AP Signed-off-by: Paolo Abeni

ionic: fix up ionic_if.h kernel-doc issues

2024-05-31T01:10:35Z

All the changes here are whitespace and comments, no code or definitions changed. Not all issues were addressed, but it is much better than it was. Mostly fixed was a lot of "Excess union member" and ''rsvd' not described' warnings. Signed-off-by: Shannon Nelson Link: https://lore.kernel.org/r/20240529000259.25775-8-shannon.nelson@amd.com Signed-off-by: Jakub Kicinski

ionic: add tx/rx-push support with device Component Memory Buffers

2023-02-13T11:05:12Z

The ionic device has on-board memory (CMB) that can be used for descriptors as a way to speed descriptor access for faster packet processing. It is rumored to improve latency and/or packets-per-second for some profiles of small packet traffic, although your mileage may vary. Signed-off-by: Shannon Nelson Signed-off-by: David S. Miller