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From: <pbhagavatula@marvell.com>
To: <jerinj@marvell.com>, David Christensen <drc@linux.vnet.ibm.com>
CC: <dev@dpdk.org>, Pavan Nikhilesh <pbhagavatula@marvell.com>,
<stable@dpdk.org>
Subject: [PATCH v3 1/5] examples/l3fwd: fix port group mask generation
Date: Sun, 11 Sep 2022 23:42:45 +0530
Message-ID: <20220911181250.2286-1-pbhagavatula@marvell.com>
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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>
---
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(-)
diff --git a/examples/common/altivec/port_group.h b/examples/common/altivec/port_group.h
index 5e209b02fa..1c05bc025a 100644
--- a/examples/common/altivec/port_group.h
+++ b/examples/common/altivec/port_group.h
@@ -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;
--
2.25.1