crypto/ccp: support hwrng

[dpdk.git] / drivers / crypto / ccp / ccp_dev.h

diff --git a/drivers/crypto/ccp/ccp_dev.h b/drivers/crypto/ccp/ccp_dev.h
index abc788c..de375ee 100644 (file)
--- a/drivers/crypto/ccp/ccp_dev.h
+++ b/drivers/crypto/ccp/ccp_dev.h
@@ -21,6 +21,7 @@
 
 /**< CCP sspecific */
 #define MAX_HW_QUEUES                   5
+#define CCP_MAX_TRNG_RETRIES           10
 
 /**< CCP Register Mappings */
 #define Q_MASK_REG                      0x000
@@ -197,6 +198,8 @@ struct ccp_device {
        /**< protection for shared lsb region allocation */
        int qidx;
        /**< current queue index */
+       int hwrng_retries;
+       /**< retry counter for CCP TRNG */
 } __rte_cache_aligned;
 
 /**< CCP H/W engine related */
@@ -428,4 +431,12 @@ int ccp_probe_devices(const struct rte_pci_id *ccp_id);
  */
 struct ccp_queue *ccp_allot_queue(struct rte_cryptodev *dev, int slot_req);
 
+/**
+ * read hwrng value
+ *
+ * @param trng_value data pointer to write RNG value
+ * @return 0 on success otherwise -1
+ */
+int ccp_read_hwrng(uint32_t *trng_value);
+
 #endif /* _CCP_DEV_H_ */