kernel/drivers/net/ethernet/pensando/ionic/ionic_main.c, branch linux-6.18.y

net: ionic: Export the APIs from net driver to support device commands

2025-09-11T06:18:35Z

RDMA driver needs to establish admin queues to support admin operations. Export the APIs to send device commands for the RDMA driver. Reviewed-by: Shannon Nelson Signed-off-by: Abhijit Gangurde Link: https://patch.msgid.link/20250903061606.4139957-4-abhijit.gangurde@amd.com Signed-off-by: Leon Romanovsky

ionic: Prevent driver/fw getting out of sync on devcmd(s)

2025-06-13T01:09:51Z

Some stress/negative firmware testing around devcmd(s) returning EAGAIN found that the done bit could get out of sync in the firmware when it wasn't cleared in a retry case. While here, change the type of the local done variable to a bool to match the return type from ionic_dev_cmd_done(). Fixes: ec8ee714736e ("ionic: stretch heartbeat detection") Signed-off-by: Brett Creeley Signed-off-by: Shannon Nelson Reviewed-by: Simon Horman Link: https://patch.msgid.link/20250609212827.53842-1-shannon.nelson@amd.com Signed-off-by: Jakub Kicinski

ionic: Translate IONIC_RC_ENOSUPP to EOPNOTSUPP

2024-12-12T11:06:33Z

Instead of reporting -EINVAL when IONIC_RC_ENOSUPP is returned use the -EOPNOTSUPP value. This aligns better since the FW only returns IONIC_RC_ENOSUPP when operations aren't supported not when invalid values are used. Signed-off-by: Brett Creeley Signed-off-by: Shannon Nelson Reviewed-by: Jacob Keller Reviewed-by: Kalesh AP Signed-off-by: Paolo Abeni

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: fold adminq clean into service routine

2024-03-08T11:54:34Z

Since the AdminQ clean is a simple action called from only one place, fold it back into the service routine. Reviewed-by: Brett Creeley Signed-off-by: Shannon Nelson Signed-off-by: David S. Miller

ionic: use specialized desc info structs

2024-03-08T11:54:34Z

Make desc_info structure specific to the queue type, which allows us to cut down the Rx and AdminQ descriptor sizes by not including all the fields needed for the Tx desriptors. Before: struct ionic_desc_info { /* size: 464, cachelines: 8, members: 6 */ After: struct ionic_tx_desc_info { /* size: 464, cachelines: 8, members: 6 */ struct ionic_rx_desc_info { /* size: 224, cachelines: 4, members: 2 */ struct ionic_admin_desc_info { /* size: 8, cachelines: 1, members: 1 */ Suggested-by: Neel Patel Reviewed-by: Brett Creeley Signed-off-by: Shannon Nelson Signed-off-by: David S. Miller

ionic: remove the cq_info to save more memory

2024-03-08T11:54:34Z

With a little simple math we don't need another struct array to find the completion structs, so we can remove the ionic_cq_info altogether. This doesn't really save anything in the ionic_cq since it gets padded out to the cacheline, but it does remove the parallel array allocation of 8 * num_descriptors, or about 8 Kbytes per queue in a default configuration. Suggested-by: Neel Patel Reviewed-by: Brett Creeley Signed-off-by: Shannon Nelson Signed-off-by: David S. Miller

ionic: remove callback pointer from desc_info

2024-03-08T11:54:34Z

By reworking the queue service routines to have their own servicing loops we can remove the cb pointer from desc_info to save another 8 bytes per descriptor, This simplifies some of the queue handling indirection and makes the code a little easier to follow, and keeps service code in one place rather than jumping between code files. struct ionic_desc_info Before: /* size: 472, cachelines: 8, members: 7 */ After: /* size: 464, cachelines: 8, members: 6 */ Suggested-by: Neel Patel Reviewed-by: Brett Creeley Signed-off-by: Shannon Nelson Signed-off-by: David S. Miller

ionic: move adminq-notifyq handling to main file

2024-03-08T11:54:34Z

Move the AdminQ and NotifyQ queue handling to ionic_main.c with the rest of the adminq code. Suggested-by: Neel Patel Reviewed-by: Brett Creeley Signed-off-by: Shannon Nelson Signed-off-by: David S. Miller

ionic: remove desc, sg_desc and cmb_desc from desc_info

2024-03-08T11:54:33Z

Remove the struct pointers from desc_info to use less space. Instead of pointers in every desc_info to its descriptor, we can use the queue descriptor index to find the individual desc, desc_info, and sgl structs in their parallel arrays. struct ionic_desc_info Before: /* size: 496, cachelines: 8, members: 10 */ After: /* size: 472, cachelines: 8, members: 7 */ Suggested-by: Neel Patel Reviewed-by: Brett Creeley Signed-off-by: Shannon Nelson Signed-off-by: David S. Miller