ionic: Add direct verbs for provider detection, UDMA, express doorbell, GDA, and extended CQ - #1771
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ionic: Add direct verbs for provider detection, UDMA, express doorbell, GDA, and extended CQ#1771abhijitG-xlnx wants to merge 14 commits into
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Add ionic_dv_is_ionic_ctx() to test whether a device context belongs to the ionic provider. This allows multi-provider applications to safely guard ionic-specific direct verb calls. Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com>
Add ionic_dv_is_ionic_pd() to test whether a protection domain belongs to the ionic provider. Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com>
Add ionic_dv_is_ionic_cq() to test whether a completion queue belongs to the ionic provider. Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com>
Add ionic_dv_is_ionic_qp() to test whether a queue pair belongs to the ionic provider. Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com>
Add ionic_dv_cq_get_udma_mask() to query the UDMA pipeline bitmask assigned to a completion queue. This complements the existing UDMA pipeline query APIs for contexts and protection domains. Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com>
Add ionic_dv_qp_get_udma_idx() to query the UDMA pipeline index assigned to a queue pair. This complements ionic_dv_cq_get_udma_mask() and the existing UDMA query APIs. Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com>
Add ionic_dv_pd_set_expdb_mask() to configure express doorbell WQE size preferences on a protection domain. This allows applications to enable express doorbell for WQE sizes beyond the default 64-byte. Add expdb_mask field to ionic_pd and update ionic_expdb_wqe_size_supported to intersect the PD mask with the device capability mask. Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com>
Add ionic_dv_qp_set_gda() to enable GPU-Direct Async on a queue pair, allowing GPU-initiated RDMA operations. The function validates that the QP has not been used and that GDA is supported by the device context. Add bool gda field to struct ionic_rq and struct ionic_sq for tracking GPU-Direct Async enablement per queue. Skip doorbell ringing on send and receive paths when GDA is enabled, as the GPU is responsible for ringing the doorbell via ionic_dv_qp_get_send/recv_dbell_data. Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com>
Add ionic_dv_qp_get_send_dbell_data() to retrieve the send queue doorbell data value for GPU-Direct Async mode. The GPU writes this value to the doorbell register to trigger data transfers. Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com>
Add ionic_dv_qp_get_recv_dbell_data() to retrieve the receive queue doorbell data value for GPU-Direct Async mode. The GPU writes this value to the doorbell register to make receive buffers available. Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com>
Add ionic_dv_get_ctx() to extract device context information for GPU-initiated RDMA, including doorbell page pointers and queue type identifiers. Introduce struct ionic_dv_ctx and struct ionic_dv_queue as part of the GDA data access interface. Export ionic_fw_types.h as a public header so that GDA applications can interpret WQE and CQE structures in hardware format when accessing queue memory directly. Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com>
Add ionic_dv_get_cq() to extract completion queue descriptor information for a specific UDMA pipeline, enabling GPU-initiated CQ access. Introduce struct ionic_dv_cq and the internal ionic_dv_get_queue helper. Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com>
Add ionic_dv_get_qp() to extract send and receive queue descriptor information for GPU-initiated RDMA. Introduce struct ionic_dv_qp to hold both queue descriptors. This completes the GDA data access interface together with ionic_dv_get_ctx() and ionic_dv_get_cq(). Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com>
Add ionic_dv_create_cq_ex() to create completion queues with vendor-specific attributes such as compact CQE (CCQE) mode. Refactor the internal ionic_create_cq_ex() into ionic_create_cq_ex_common() which accepts an optional ionic_cq_init_attr_ex parameter. The original verb function becomes a thin wrapper passing NULL. Introduce enum ionic_cq_init_attr_mask, enum ionic_cq_init_attr_flags, and struct ionic_cq_init_attr_ex in the public header. Add IONIC_1.1 version to the symbol map. Signed-off-by: Abhijit Gangurde <abhijit.gangurde@amd.com>
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Add 14 new ionic direct verb APIs with man pages, symbol exports under IONIC_1.1, and debian packaging updates.