eeffc9ef70
Write combining (WC) increases NIC performance by making better utilization of PCI bus, but cannot be use by all PMD. To get internal_addr memory need to be mapped. But as memory could not be mapped twice: with and without WC it should be skipped for WC. [1] To do not spoil other drivers that potentially could use internal_addr, parameter wc_activate adds possibility to skip it for those PMDs, that do not use it. [1] https://www.kernel.org/doc/ols/2008/ols2008v2-pages-135-144.pdf section 5.3 and 5.4 Signed-off-by: Rafal Kozik <rk@semihalf.com> Acked-by: Bruce Richardson <bruce.richardson@intel.com> Acked-by: Ferruh Yigit <ferruh.yigit@intel.com> |
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