Tested-by: Chris Healy <cphealy@xxxxxxxxx> On Thu, Nov 21, 2019 at 7:56 AM Andrey Smirnov <andrew.smirnov@xxxxxxxxx> wrote: > > Everyone: > > This series is a continuation of original [discussion]. I don't know > if what's in the series is enough to use CAAMs HWRNG system wide, but > I am hoping that with enough iterations and feedback it will be. > > Changes since [v1]: > > - Original hw_random replaced with the one using output of TRNG directly > > - SEC4 DRNG IP block exposed via crypto API > > - Small fix regarding use of GFP_DMA added to the series > > Chagnes since [v2]: > > - msleep in polling loop to avoid wasting CPU cycles > > - caam_trng_read() bails out early if 'wait' is set to 'false' > > - fixed typo in ZII's name > > Changes since [v3]: > > - DRNG's .cra_name is now "stdrng" > > - collected Reviewd-by tag from Lucas > > - typo fixes in commit messages of the series > > Feedback is welcome! > > Thanks, > Andrey Smirnov > > [discussion] https://patchwork.kernel.org/patch/9850669/ > [v1] https://lore.kernel.org/lkml/20191029162916.26579-1-andrew.smirnov@xxxxxxxxx > [v2] https://lore.kernel.org/lkml/20191118153843.28136-1-andrew.smirnov@xxxxxxxxx > [v3] https://lore.kernel.org/lkml/20191120165341.32669-1-andrew.smirnov@xxxxxxxxx > > Andrey Smirnov (6): > crypto: caam - RNG4 TRNG errata > crypto: caam - enable prediction resistance in HRWNG > crypto: caam - allocate RNG instantiation descriptor with GFP_DMA > crypto: caam - move RNG presence check into a shared function > crypto: caam - replace DRNG with TRNG for use with hw_random > crypto: caam - expose SEC4 DRNG via crypto RNG API > > drivers/crypto/caam/Kconfig | 15 +- > drivers/crypto/caam/Makefile | 3 +- > drivers/crypto/caam/caamrng.c | 358 ---------------------------------- > drivers/crypto/caam/ctrl.c | 29 ++- > drivers/crypto/caam/desc.h | 2 + > drivers/crypto/caam/drng.c | 175 +++++++++++++++++ > drivers/crypto/caam/intern.h | 32 ++- > drivers/crypto/caam/jr.c | 3 +- > drivers/crypto/caam/regs.h | 14 +- > drivers/crypto/caam/trng.c | 89 +++++++++ > 10 files changed, 338 insertions(+), 382 deletions(-) > delete mode 100644 drivers/crypto/caam/caamrng.c > create mode 100644 drivers/crypto/caam/drng.c > create mode 100644 drivers/crypto/caam/trng.c > > -- > 2.21.0 >
