On 8/7/20 8:58 AM, Ciara Power wrote:
Each arch has a define for the default SIMD bitwidth value, this is used
on EAL init to set the config max SIMD bitwidth.
What's the intended use case?
Cc: Ruifeng Wang <ruifeng.w...@arm.com>
Cc: Jerin Jacob <jer...@marvell.com>
Cc: Honnappa Nagarahalli <honnappa.nagaraha...@arm.com>
Cc: David Christensen <d...@linux.vnet.ibm.com>
Signed-off-by: Ciara Power <ciara.po...@intel.com>
---
lib/librte_eal/arm/include/rte_vect.h | 2 ++
lib/librte_eal/common/eal_common_options.c | 3 +++
lib/librte_eal/include/generic/rte_vect.h | 2 ++
lib/librte_eal/ppc/include/rte_vect.h | 2 ++
lib/librte_eal/x86/include/rte_vect.h | 2 ++
5 files changed, 11 insertions(+)
diff --git a/lib/librte_eal/arm/include/rte_vect.h
b/lib/librte_eal/arm/include/rte_vect.h
index 01c51712a1..7487a53862 100644
--- a/lib/librte_eal/arm/include/rte_vect.h
+++ b/lib/librte_eal/arm/include/rte_vect.h
@@ -14,6 +14,8 @@
extern "C" {
#endif
+#define RTE_DEFAULT_SIMD_BITWIDTH 256
+
typedef int32x4_t xmm_t;
#define XMM_SIZE (sizeof(xmm_t))
diff --git a/lib/librte_eal/common/eal_common_options.c
b/lib/librte_eal/common/eal_common_options.c
index 90f4e8f5c3..c2a9624f89 100644
--- a/lib/librte_eal/common/eal_common_options.c
+++ b/lib/librte_eal/common/eal_common_options.c
@@ -35,6 +35,7 @@
#ifndef RTE_EXEC_ENV_WINDOWS
#include <rte_telemetry.h>
#endif
+#include <rte_vect.h>
#include "eal_internal_cfg.h"
#include "eal_options.h"
@@ -344,6 +345,8 @@ eal_reset_internal_config(struct internal_config
*internal_cfg)
internal_cfg->user_mbuf_pool_ops_name = NULL;
CPU_ZERO(&internal_cfg->ctrl_cpuset);
internal_cfg->init_complete = 0;
+ internal_cfg->max_simd_bitwidth.bitwidth = RTE_DEFAULT_SIMD_BITWIDTH;
+ internal_cfg->max_simd_bitwidth.locked = 0;
}
Build error on HEAD:
../lib/librte_eal/common/eal_common_options.c: In function
‘eal_reset_internal_config’:
../lib/librte_eal/common/eal_common_options.c:347:14: error: ‘struct
internal_config’ has no member named ‘max_simd_bitwidth’
internal_cfg->max_simd_bitwidth.bitwidth = RTE_DEFAULT_SIMD_BITWIDTH;
^~
../lib/librte_eal/common/eal_common_options.c:348:14: error: ‘struct
internal_config’ has no member named ‘max_simd_bitwidth’
internal_cfg->max_simd_bitwidth.locked = 0;
^~
Dave
