[v6,1/5] examples/l3fwd: fix port group mask generation
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Commit Message
From: Pavan Nikhilesh <pbhagavatula@marvell.com>
Fix port group mask generation in altivec, vec_any_eq returns
0 or 1 while port_groupx4 expects comparison mask result.
Fixes: 2193b7467f7a ("examples/l3fwd: optimize packet processing on powerpc")
Cc: stable@dpdk.org
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Acked-by: Shijith Thotton <sthotton@marvell.com>
---
v6 Changes:
- Minor optimiazation to process_dst_port NEON.
v5 Changes:
- Fix compilation errors.
v4 Changes:
- Fix missing `rte_free`.
v3 Changes:
- PPC optimize port mask generation.
- Fix aarch32 compilation.
v2 Changes:
- Fix PPC, RISC-V, aarch32 compilation.
examples/common/altivec/port_group.h | 11 ++++++++---
1 file changed, 8 insertions(+), 3 deletions(-)
--
2.25.1
Comments
25/10/2022 18:05, pbhagavatula@marvell.com:
> From: Pavan Nikhilesh <pbhagavatula@marvell.com>
>
> Fix port group mask generation in altivec, vec_any_eq returns
> 0 or 1 while port_groupx4 expects comparison mask result.
>
> Fixes: 2193b7467f7a ("examples/l3fwd: optimize packet processing on powerpc")
> Cc: stable@dpdk.org
>
> Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
> Acked-by: Shijith Thotton <sthotton@marvell.com>
Series applied, thanks.
@@ -26,12 +26,17 @@ port_groupx4(uint16_t pn[FWDSTEP + 1], uint16_t *lp,
uint16_t u16[FWDSTEP + 1];
uint64_t u64;
} *pnum = (void *)pn;
-
+ __vector unsigned long long result;
+ const __vector unsigned int perm_mask = {0x00204060, 0x80808080,
+ 0x80808080, 0x80808080};
int32_t v;
- v = vec_any_eq(dp1, dp2);
-
+ dp1 = (__vector unsigned short)vec_cmpeq(dp1, dp2);
+ dp1 = vec_mergeh(dp1, dp1);
+ result = (__vector unsigned long long)vec_vbpermq(
+ (__vector unsigned char)dp1, (__vector unsigned char)perm_mask);
+ v = result[1];
/* update last port counter. */
lp[0] += gptbl[v].lpv;