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To prepare for assigning vPorts to dedicated MSI-X vectors, remove EQ sharing among the vPorts and create dedicated EQs for each vPort. Move the EQ definition from struct mana_context to struct mana_port_context and update related support functions. Export mana_create_eq() and mana_destroy_eq() for use by the MANA RDMA driver.
When querying the device, adjust the max number of queues to allow dedicated MSI-X vectors for each vPort. The number of queues per vPort is clamped to no less than 16. MSI-X sharing among vPorts is disabled by default and is only enabled when there are not enough MSI-X vectors for dedicated allocation. Rename mana_query_device_cfg() to mana_gd_query_device_cfg() as it is used at GDMA device probe time for querying device capabilities.
…ement To allow Ethernet EQs to use dedicated or shared MSI-X vectors and RDMA EQs to share the same MSI-X, introduce a GIC (GDMA IRQ Context) with reference counting. This allows the driver to create an interrupt context on an assigned or unassigned MSI-X vector and share it across multiple EQ consumers.
Replace the GDMA global interrupt setup code with the new GIC allocation and release functions for managing interrupt contexts.
Use GIC functions to create a dedicated interrupt context or acquire a shared interrupt context for each EQ when setting up a vPort.
Use the GIC functions to allocate interrupt contexts for RDMA EQs. These interrupt contexts may be shared with Ethernet EQs when MSI-X vectors are limited. The driver now supports allocating dedicated MSI-X for each EQ. Indicate this capability through driver capability bits.
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