Similar to, and based on, the Resizable BAR and Expa...view moreSimilar to, and based on, the Resizable BAR and Expanded Resizable BAR ECNs, this optional ECN adds a capability for PFs to be able to resize their VF BARs. This ECN is written with the expectation that the Expanded Resizable BAR ECN will have been released prior to this ECN’s release. This ECN supports all of the BAR sizes defined by both the Resizable BAR and Expanded Resizable BAR ECNs.
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The Resizable BAR capability currently allows BARs o...view moreThe Resizable BAR capability currently allows BARs of up to 512 GB (239), which allows address bits <38:0> to be passed into an Endpoint. This proposal extends resizable BARs to up to 263 bits, which supports the entire address space.
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This optional ECN adds a capability for Functions wi...view moreThis optional ECN adds a capability for Functions with BARs to report various options for sizes of their memory mapped resources that will operate properly. Also added is an ability for software to program the size to configure the BAR to.
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