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

net: ionic: Create an auxiliary device for rdma driver

2025-09-11T06:18:35Z

To support RDMA capable ethernet device, create an auxiliary device in the ionic Ethernet driver. The RDMA device is modeled as an auxiliary device to the Ethernet device. Reviewed-by: Shannon Nelson Signed-off-by: Abhijit Gangurde Link: https://patch.msgid.link/20250903061606.4139957-2-abhijit.gangurde@amd.com Signed-off-by: Leon Romanovsky

ionic: Fully reconfigure queues when going to/from a NULL XDP program

2024-09-10T02:18:15Z

Currently when going to/from a NULL XDP program the driver uses ionic_stop_queues_reconfig() and then ionic_start_queues_reconfig() in order to re-register the xdp_rxq_info and re-init the queues. This is fine until page_pool(s) are used in an upcoming patch. In preparation for adding page_pool support make sure to completely rebuild the queues when going to/from a NULL XDP program. Without this change the call to mem_allocator_disconnect() never happens when going to a NULL XDP program, which eventually results in xdp_rxq_info_reg_mem_model() failing with -ENOSPC due to the mem_id_pool ida having no remaining space. Signed-off-by: Brett Creeley Signed-off-by: Shannon Nelson Link: https://patch.msgid.link/20240906232623.39651-6-brett.creeley@amd.com Signed-off-by: Jakub Kicinski

ionic: Only run the doorbell workaround for certain asic_type

2024-06-20T01:31:49Z

If the doorbell workaround isn't required for a certain asic_type then there is no need to run the associated code. Since newer FW versions are finally reporting their asic_type we can use a flag to determine whether or not to do the workaround. Signed-off-by: Brett Creeley Signed-off-by: Shannon Nelson Link: https://lore.kernel.org/r/20240619003257.6138-9-shannon.nelson@amd.com Signed-off-by: Jakub Kicinski

ionic: Use an u16 for rx_copybreak

2024-06-20T01:31:49Z

We only support (u16)-1 size for rx_copybreak, so we can reduce the field size and move a couple other fields around to save a little space in the ionic_lif struct. Before: /* size: 17440, cachelines: 273, members: 56 */ /* sum members: 17403, holes: 9, sum holes: 37 */ /* last cacheline: 32 bytes */ After: /* size: 17424, cachelines: 273, members: 56 */ /* sum members: 17401, holes: 7, sum holes: 23 */ /* last cacheline: 16 bytes */ Signed-off-by: Brett Creeley Signed-off-by: Shannon Nelson Link: https://lore.kernel.org/r/20240619003257.6138-8-shannon.nelson@amd.com Signed-off-by: Jakub Kicinski

ionic: add per-queue napi_schedule for doorbell check

2024-06-20T01:31:48Z

Add a work item for each queue that will be run on the queue's preferred cpu and will schedule another napi. This napi is run in case the device missed a doorbell and didn't process a packet. This is a problem for the Elba asic that happens very rarely. Signed-off-by: Shannon Nelson Link: https://lore.kernel.org/r/20240619003257.6138-6-shannon.nelson@amd.com Signed-off-by: Jakub Kicinski

ionic: add private workqueue per-device

2024-06-20T01:31:48Z

Instead of using the system's default workqueue, add a private workqueue for the device to use for its little jobs. This is to better support the new work items we will be adding in the next patches for PF and VF specific jobs, without inundating the system workqueue in a couple of customer cases where our devices get scaled out to 100-200 VFs. Signed-off-by: Brett Creeley Signed-off-by: Shannon Nelson Link: https://lore.kernel.org/r/20240619003257.6138-4-shannon.nelson@amd.com Signed-off-by: Jakub Kicinski

ionic: remove missed doorbell per-queue timer

2024-06-20T01:30:54Z

Remove the timer-per-queue mechanics from the missed doorbell check in preparation for the new missed doorbell fix. Signed-off-by: Shannon Nelson Link: https://lore.kernel.org/r/20240619003257.6138-2-shannon.nelson@amd.com Signed-off-by: Jakub Kicinski

ionic: rearrange ionic_qcq

2024-03-08T11:54:34Z

Rearange a few fields for better cache use and to put the flags field up into the first cacheline rather than the last. struct ionic_qcq Before: /* size: 2176, cachelines: 34, members: 23 */ After: /* size: 2112, cachelines: 33, members: 23 */ Reviewed-by: Brett Creeley Signed-off-by: Shannon Nelson Signed-off-by: David S. Miller

ionic: change the hwstamp likely check

2024-03-04T09:38:13Z

An earlier change moved the hwstamp queue check into a helper function with an unlikely(). However, it makes more sense for the caller to decide if it's likely() or unlikely(), so make the change to support that. Signed-off-by: Brett Creeley Signed-off-by: Shannon Nelson Signed-off-by: David S. Miller

ionic: Add XDP_REDIRECT support

2024-02-16T08:48:08Z

The XDP_REDIRECT packets are given to the XDP stack and we drop the use of the related page: it will get freed by the driver that ends up doing the Tx. Because we have some hardware configurations with limited queue resources, we use the existing datapath Tx queues rather than creating and managing a separate set of xdp_tx queues. Co-developed-by: Brett Creeley Signed-off-by: Brett Creeley Signed-off-by: Shannon Nelson Reviewed-by: Jacob Keller Signed-off-by: David S. Miller