[dpdk-dev] [PATCH v5 00/29] introduce I/O device memory read/write operations
thomas.monjalon at 6wind.com
Wed Jan 18 17:25:22 CET 2017
2017-01-18 06:51, Jerin Jacob:
> Based on the discussion in the below-mentioned thread,
> This patchset introduces 8-bit, 16-bit, 32bit, 64bit I/O device
> memory read/write operations along with the relaxed versions.
> The weakly-ordered machine like ARM needs additional I/O barrier for
> device memory read/write access over PCI bus.
> By introducing the EAL abstraction for I/O device memory read/write access,
> The drivers can access I/O device memory in architecture-agnostic manner.
> The relaxed version does not have additional I/O memory barrier, useful in
> accessing the device registers of integrated controllers which
> implicitly strongly ordered with respect to memory access.
Does it deserve an entry in the release notes?
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