On Tue, Nov 03, 2015 at 02:17:38PM +0000, Hunt, David wrote: > On 03/11/2015 13:09, Jerin Jacob wrote: > >This is the v1 patchset for ARMv8 that now sits on top of the v6 patch > >of the ARMv7 code by RehiveTech. It adds code into the same arm include > >directory, reducing code duplication. > > > >Tested on an ThunderX arm 64-bit arm server board, with PCI slots. Passes > >traffic > >between two physical ports on an Intel 82599 dual-port 10Gig NIC. Should > >work with many other NICS as long as long as there is no unaligned access to > >device memory but not yet untested. > > I have your patchset building and running on an X-Gene based 8-core MP30AR0 > system, passing traffic between two ports on and 82599 also. >
Thanks. > >Notes on arm64 kernel configuration: > > > > Tested on using Ubuntu 14.04 LTS with a 3.18 kernel and igb_uio. > > ARM64 kernels does not have functional resource mapping of PCI memory > > (PCI_MMAP), so the pci driver needs to be patched to enable this. The > > symptom of this is when /sys/bus/pci/devices/0000:0X:00.Y directory is > > missing the resource0...N files for mmapping the device memory. > > > > Following patch fixes the PCI resource mapping issue om armv8. > > Its not yet up streamed.We are in the process of up streaming it. > > > > > > http://lists.infradead.org/pipermail/linux-arm-kernel/2015-July/358906.html > > Good to see that there's a patch on the way for this. That fix looks almost > exactly the same as the hack I did to my kernel :) > > I had a couple of small issues when patching/building: > > 1. Three of the files had an extra blank line at the end. Maybe worth > running checkpatch on the patches. 'git am' was complaining. I will fix it in next version. > > 2. I had problems compiling two drivers because they were attempting to > include tmmintrin.h: > > ...dpdk/drivers/net/fm10k/fm10k_rxtx_vec.c:41:23: fatal error: tmmintrin.h: > No such file or directory > > ...dpdk/drivers/net/i40e/i40e_rxtx_vec.c:43:23: fatal error: tmmintrin.h: No > such file or directory > > To avoid this, I added the following two lines into > defconfig_arm64-armv8a-linuxapp-gcc > > CONFIG_RTE_LIBRTE_FM10K_PMD=n > CONFIG_RTE_LIBRTE_I40E_PMD=n the patch was based on 82fb702077f67585d64a07de0080e5cb6a924a72 which don't have these changes. I will add these in next version. > and then it built fine, and I can run testpmd with my 82599's and run > autotests. I ran autotest, "Mbuf autotest" stress failure is due strong vs weak ordering issue. I will send the next version based on new patch being discussed on ml. > > Thanks for that. > Dave.