Sunday, May 6, 2018 4:33 PM, Jerin Jacob: > Subject: Re: event/octeontx: add event timer adapter driver > > -----Original Message----- > > Date: Sun, 6 May 2018 13:17:55 +0000 > > From: Shahaf Shuler <shah...@mellanox.com> > > To: Pavan Nikhilesh <pbhagavat...@caviumnetworks.com>, Ali Alnubani > > <alia...@mellanox.com>, Thomas Monjalon <tho...@monjalon.net>, > Raslan > > Darawsheh <rasl...@mellanox.com>, "jerin.ja...@caviumnetworks.com" > > <jerin.ja...@caviumnetworks.com> > > CC: "dev@dpdk.org" <dev@dpdk.org> > > Subject: RE: event/octeontx: add event timer adapter driver > > > > Monday, April 23, 2018 11:45 AM, Pavan Nikhilesh: > > > Subject: Re: event/octeontx: add event timer adapter driver > > > > > > Hi Ali, > > > > > > Looks like a compiler bug rather than code issue, I have verified > > > this on x86 with gcc 4.8.5 and don't see an issue. > > > > > > Looking around I found that compiling with -O1 on aarch64 gcc 4.8.5 > > > seems to fix the compiler bug. > > > > Even if compiler bug, can we W.A in the PMD code? Surely you want your > PMD to be compiled in most/all inbox gcc compilers. > > > > Here is even more problematic since it means DPDK doesn't compile > natively on aarch with RH7.5. not sure how octeontx PMD can be enabled by > default with such case. > > > One option could be disable the specific driver for specific GCC version IF > GCC > VERSION IS BUGGY instead of disabling.
Yes this is yet another option. > > For arm64 being relativity new architecture, support for OLD compilers are > not that good NOR really in use. Well there are. Customer installing "new" OS (RH7.5) on his arm server will currently not be able to compile DPDK. > > > > > > > > > > > Thanks, > > > Pavan. > > > > > > On Sun, Apr 22, 2018 at 04:03:36PM +0000, Ali Alnubani wrote: > > > > Hi Pavan, > > > > > > > > The patchset > > > > https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fdp > > > d > > > k.org%2Fml%2Farchives%2Fdev%2F2018- > > > > April%2F094928.html&data=02%7C01%7Cshahafs%40mellanox.com%7C0829 > > > > 941a97144eed811508d5a8f680c8%7Ca652971c7d2e4d9ba6a4d149256f461b%7 > > > > C0%7C0%7C636600699041780885&sdata=hyAPljSPsY5PY2Had7vNwF5JX1zC0T > > > i8WLEZr1lzhwo%3D&reserved=0 is causing a compilation error on > > > QUALCOMM ARM with RHEL7.5 and gcc version 4.8.5: > > > > > > > > """ > > > > /download/dpdk-next-net- > mlx/drivers/event/octeontx/timvf_worker.c: > > > In function 'timvf_timer_arm_burst_sp': > > > > /download/dpdk-next-net- > > > mlx/drivers/event/octeontx/timvf_worker.c:89:1 > > > > : error: could not split insn } ^ (insn 95 98 99 (parallel [ > > > > (set (reg:DI 0 x0 [orig:98 D.8130 ] [98]) > > > > (mem/v:DI (reg/f:DI 21 x21 [orig:88 D.8136 ] [88]) [-1 > > > > S8 A64])) > > > > (set (mem/v:DI (reg/f:DI 21 x21 [orig:88 D.8136 ] [88]) [-1 > > > > S8 A64]) > > > > (unspec_volatile:DI [ > > > > (plus:DI (mem/v:DI (reg/f:DI 21 x21 > > > > [orig:88 D.8136 ] [88]) [-1 S8 > > > A64]) > > > > (const_int -281474976710656 > > > > [0xffff000000000000])) > > > > (const_int 0 [0]) > > > > ] UNSPECV_ATOMIC_OP)) > > > > (clobber (reg:CC 66 cc)) > > > > (clobber (reg:DI 1 x1)) > > > > (clobber (reg:SI 2 x2)) > > > > ]) /download/dpdk-next-net- > > > mlx/drivers/event/octeontx/timvf_worker.h:95 1832 > > > {atomic_fetch_adddi} > > > > (expr_list:REG_UNUSED (reg:CC 66 cc) > > > > (expr_list:REG_UNUSED (reg:SI 2 x2) > > > > (expr_list:REG_UNUSED (reg:DI 1 x1) > > > > (nil))))) > > > > /download/dpdk-next-net- > > > mlx/drivers/event/octeontx/timvf_worker.c:89:1 > > > > : internal compiler error: in final_scan_insn, at final.c:2897 > > > > Please submit a full bug report, with preprocessed source if > appropriate. > > > > See > > > > <https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fb > > > u > > > > gzilla.redhat.com%2Fbugzilla&data=02%7C01%7Cshahafs%40mellanox.com% > > > > 7C0829941a97144eed811508d5a8f680c8%7Ca652971c7d2e4d9ba6a4d149256f > > > > 461b%7C0%7C0%7C636600699041780885&sdata=bPZVI%2BkCTkDrHmUscl%2 > > > FqJyuwe%2BmZw795yiAvoUX%2BPE8%3D&reserved=0> for instructions. > > > > PMDINFO opdl_evdev.o.pmd.c > > > > CC opdl_evdev.o.pmd.o > > > > LD opdl_evdev.o > > > > PMDINFO sw_evdev.o.pmd.c > > > > CC sw_evdev.o.pmd.o > > > > LD sw_evdev.o > > > > Preprocessed source stored into /tmp/ccmqxmH7.out file, please > > > > attach > > > this to your bugreport. > > > > make[6]: *** [timvf_worker.o] Error 1 > > > > make[5]: *** [octeontx] Error 2 > > > > make[5]: *** Waiting for unfinished jobs.... > > > > AR librte_pmd_opdl_event.a > > > > INSTALL-LIB librte_pmd_opdl_event.a > > > > AR librte_pmd_sw_event.a > > > > INSTALL-LIB librte_pmd_sw_event.a > > > > make[4]: *** [event] Error 2 > > > > make[3]: *** [drivers] Error 2 > > > > make[2]: *** [all] Error 2 > > > > make[1]: *** [pre_install] Error 2 > > > > make: *** [install] Error > > > > """ > > > > > > > > The compilation only passes with > CONFIG_RTE_LIBRTE_OCTEONTX_PMD, > > > CONFIG_RTE_LIBRTE_PMD_OCTEONTX_SSOVF and > > > CONFIG_RTE_LIBRTE_OCTEONTX_MEMPOOL set to false. > > > > It also passes if I upgrade gcc, but can we have a fix for old gcc > > > > versions? > > > > > > > > Thanks, > > > > Ali > >
