On Wed, 6 Feb 2013 17:17:46 +0530 Vakul Garg <vakul@xxxxxxxxxxxxx> wrote: > This change is required for post SEC-5.0 devices which have RNG4. Setting RDB wrap your commit message text to 75 chars > in security configuration register allows CAAM to use the "Random Data Buffer" > to be filled by a single request. The Random Data Buffer is large enough for > ten packets to get their IVs from a single request. If the Random Data Buffer > is not enabled, then each IV causes a separate request, and RNG4 hardware > cannot keep up resulting in lower IPSEC throughput. Linux kernel IPSec or another IPSEC stack? how much lower? > + if (of_device_is_compatible(nprop, "fsl,sec-v5.0")) > + setbits32(&topregs->ctrl.scfgr, SCFGR_RDBENABLE); > + this belongs further down - at the end of the RNG4 initialization section. Kim -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
