On Mon, 21 Oct 2024 01:52:45 +0000 Wathsala Vithanage <wathsala.vithan...@arm.com> wrote:
> Extend the PCI driver and the library to extract the Steering Tag (ST) > for a given Processor/Processor Container and Cache ID pair and validate > a Processing Hint from a TPH _DSM associated with a root port device. > The rte_pci_device structure passed into the rte_pci_extract_tph_st() > function could be a device or a root port. If it's a device, the > function should trace it back to the root port and use its TPH _DSM to > extract STs. The implementation of rte_pci_extract_tph_st() is dependent > on the operating system. > > rte_pci_extract_tph_st() should also be supplied with a > rte_tph_acpi__dsm_args, and a rte_tph_acpi__dsm_return structures. > These two structures are defined in the PCI library and comply with the > TPH _DSM argument and return encoding specified in the PCI firmware ECN > titled "Revised _DSM for Cache Locality TPH Features.". Use of > rte_init_tph_acpi__dsm_args() is recommended for initializing the > rte_tph_acpi__dsm_args struct which is capable of converting lcore ID, > the cache level into values understood by the ACPI _DSM function. > rte_tph_acpi__dsm_return struct will be initialized with the values > returned by the TPH _DSM; it is up to the caller to use these values per > the device's capabilities. > > Signed-off-by: Wathsala Vithanage <wathsala.vithan...@arm.com> > Reviewed-by: Honnappa Nagarahalli <honnappa.nagaraha...@arm.com> > Reviewed-by: Dhruv Tripathi <dhruv.tripa...@arm.com> While doing review, noticed that patch has minor whitespace issue. /home/shemminger/DPDK/main/.git/worktrees/stash/rebase-apply/patch:123: new blank line at EOF. + warning: 1 line adds whitespace errors.
