From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ali Alnubani <alialnu@mellanox.com>
Subject: event/octeontx: add event timer adapter driver
Date: Sun, 22 Apr 2018 16:03:36 +0000
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Cc: "'dev@dpdk.org'" <dev@dpdk.org>, "'users@dpdk.org'" <users@dpdk.org>,
 Thomas Monjalon <thomas@monjalon.net>, Shahaf Shuler <shahafs@mellanox.com>,
 Raslan Darawsheh <rasland@mellanox.com>
To: "'pbhagavatula@caviumnetworks.com'" <pbhagavatula@caviumnetworks.com>
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Hi Pavan,

The patchset http://dpdk.org/ml/archives/dev/2018-April/094928.html is caus=
ing 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 funct=
ion 'timvf_timer_arm_burst_sp':
/download/dpdk-next-net-mlx/drivers/event/octeontx/timvf_worker.c:89:1: err=
or: 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: int=
ernal compiler error: in final_scan_insn, at final.c:2897
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://bugzilla.redhat.com/bugzilla> 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 fa=
lse.
It also passes if I upgrade gcc, but can we have a fix for old gcc versions=
?

Thanks,
Ali