[dpdk-dev] [PATCH v4 05/11] snow3g: add missing feature flags

[Pablo de Lara]

The underlying libsso library support SSE4.1 instruction set,
so feature flags of the crypto device must be updated
to reflect this.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch at intel.com>
Acked-by: Jain, Deepak K <deepak.k.jain at intel.com>
---
 drivers/crypto/snow3g/rte_snow3g_pmd.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/crypto/snow3g/rte_snow3g_pmd.c 
b/drivers/crypto/snow3g/rte_snow3g_pmd.c
index b90d27d..6d59de7 100644
--- a/drivers/crypto/snow3g/rte_snow3g_pmd.c
+++ b/drivers/crypto/snow3g/rte_snow3g_pmd.c
@@ -555,6 +555,16 @@ cryptodev_snow3g_create(const char *name,
        struct rte_cryptodev *dev;
        char crypto_dev_name[RTE_CRYPTODEV_NAME_MAX_LEN];
        struct snow3g_private *internals;
+       uint64_t cpu_flags = 0;
+
+       /* Check CPU for supported vector instruction set */
+       if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_SSE4_1))
+               cpu_flags |= RTE_CRYPTODEV_FF_CPU_SSE;
+       else {
+               SNOW3G_LOG_ERR("Vector instructions are not supported by CPU");
+               return -EFAULT;
+       }
+

        /* Create a unique device name. */
        if (create_unique_device_name(crypto_dev_name,
@@ -578,7 +588,8 @@ cryptodev_snow3g_create(const char *name,
        dev->enqueue_burst = snow3g_pmd_enqueue_burst;

        dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
-                       RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING;
+                       RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
+                       cpu_flags;

        internals = dev->data->dev_private;

-- 
2.5.0