5 Commits

Author SHA1 Message Date
Shannon Nelson
ba6faaa68d vdpa/pds: fixes for VF vdpa flr-aer handling
This addresses a couple of things found while testing the FLR and AER
handling with the VFs.
 - release irqs before calling vp_modern_remove()
 - make sure we have a valid struct pointer before using it to release irqs
 - make sure the FW is alive before trying to add a new device

Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Message-Id: <20240220011050.30913-1-shannon.nelson@amd.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-03-19 02:45:49 -04:00
Shannon Nelson
151cc834f3 pds_vdpa: add support for vdpa and vdpamgmt interfaces
This is the vDPA device support, where we advertise that we can
support the virtio queues and deal with the configuration work
through the pds_core's adminq.

Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Message-Id: <20230519215632.12343-10-shannon.nelson@amd.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
2023-06-27 10:47:09 -04:00
Shannon Nelson
94591894df pds_vdpa: virtio bar setup for vdpa
Prep and use the "modern" virtio bar utilities to get our
virtio config space ready.

Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20230519215632.12343-8-shannon.nelson@amd.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-06-27 10:47:08 -04:00
Shannon Nelson
25d1270b6e pds_vdpa: get vdpa management info
Find the vDPA management information from the DSC in order to
advertise it to the vdpa subsystem.

Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20230519215632.12343-7-shannon.nelson@amd.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-06-27 10:47:08 -04:00
Shannon Nelson
a16291b5bc pds_vdpa: Add new vDPA driver for AMD/Pensando DSC
This is the initial auxiliary driver framework for a new vDPA
device driver, an auxiliary_bus client of the pds_core driver.
The pds_core driver supplies the PCI services for the VF device
and for accessing the adminq in the PF device.

This patch adds the very basics of registering for the auxiliary
device and setting up debugfs entries.

Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20230519215632.12343-4-shannon.nelson@amd.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2023-06-27 10:47:08 -04:00