[dpdk-stable] [PATCH] compress/isal: fix getting information about CPU
Tomasz Cel
tomaszx.cel at intel.com
Thu Mar 7 12:07:18 CET 2019
This patch adds query about CPU features
Fixes: 53a9baa98c36 ("compress/isal: add basic PMD ops")
Signed-off-by: Tomasz Cel <tomaszx.cel at intel.com>
---
drivers/compress/isal/isal_compress_pmd_ops.c | 16 ++++++++++++----
1 file changed, 12 insertions(+), 4 deletions(-)
diff --git a/drivers/compress/isal/isal_compress_pmd_ops.c b/drivers/compress/isal/isal_compress_pmd_ops.c
index 7b91849..fe99959 100644
--- a/drivers/compress/isal/isal_compress_pmd_ops.c
+++ b/drivers/compress/isal/isal_compress_pmd_ops.c
@@ -135,10 +135,18 @@ isal_comp_pmd_info_get(struct rte_compressdev *dev __rte_unused,
{
if (dev_info != NULL) {
dev_info->capabilities = isal_pmd_capabilities;
- dev_info->feature_flags = RTE_COMPDEV_FF_CPU_AVX512 |
- RTE_COMPDEV_FF_CPU_AVX2 |
- RTE_COMPDEV_FF_CPU_AVX |
- RTE_COMPDEV_FF_CPU_SSE;
+
+ /* Check CPU for supported vector instruction and set
+ * feature_flags
+ */
+ if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX512F))
+ dev_info->feature_flags |= RTE_COMPDEV_FF_CPU_AVX512;
+ else if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX2))
+ dev_info->feature_flags |= RTE_COMPDEV_FF_CPU_AVX2;
+ else if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_AVX))
+ dev_info->feature_flags |= RTE_COMPDEV_FF_CPU_AVX;
+ else
+ dev_info->feature_flags |= RTE_COMPDEV_FF_CPU_SSE;
}
}
--
2.7.4
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