[dpdk-dev] [PATCH v3 05/11] snow3g: add missing feature flags
Pablo de Lara
pablo.de.lara.guarch at intel.com
Mon Jun 20 11:27:47 CEST 2016
The underlying libsso library supports 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
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