-----Original Message----- > Date: Sun, 26 Nov 2017 18:00:24 -0800 > From: Jia He <hejia...@gmail.com> > To: jerin.ja...@caviumnetworks.com, dev@dpdk.org, > bruce.richard...@intel.com, konstantin.anan...@intel.com > Cc: olivier.m...@6wind.com, jianbo....@arm.com, hemant.agra...@nxp.com, Jia > He <hejia...@gmail.com>, Jia He <jia...@hxt-semitech.com> > Subject: [PATCH V6 3/3] ring: introduce new header file to support C11 > memory model > X-Mailer: git-send-email 2.7.4 > > To support C11 memory model barrier, 2 options are suggested by Jerin: > 1. use rte_smp_rmb > 2. use load_acquire/store_release(refer to [1]). > CONFIG_RTE_RING_USE_C11_MEM_MODEL is provided, and by default it is "y" > only on arm64 so far. > > The reason why providing 2 options is due to the performance benchmark > difference in different arm machines, refer to [2]. > > We haven't tested on ppc64. If anyone verifies it, he can add > CONFIG_RTE_RING_USE_C11_MEM_MODEL=y to ppc64 config files. > > [1] https://github.com/freebsd/freebsd/blob/master/sys/sys/buf_ring.h#L170 > [2] http://dpdk.org/ml/archives/dev/2017-October/080861.html > > Signed-off-by: Jia He <jia...@hxt-semitech.com> > Suggested-by: Jerin Jacob <jerin.ja...@caviumnetworks.com>
Acked-by: Jerin Jacob <jerin.ja...@caviumnetworks.com>
