X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;ds=sidebyside;f=drivers%2Fcrypto%2Fccp%2Fccp_dev.c;h=80fe6a4533446415ab3e592238c5c021981d2379;hb=382e273ab6a11a0271a2430d7170e2456b4c3367;hp=34e44b34fd259872ee9eae6fe8edb3c4980d37c0;hpb=3c20cf98e2c99e6178585299056f3fb6d08467f3;p=dpdk.git

diff --git a/drivers/crypto/ccp/ccp_dev.c b/drivers/crypto/ccp/ccp_dev.c
index 34e44b34fd..80fe6a4533 100644
--- a/drivers/crypto/ccp/ccp_dev.c
+++ b/drivers/crypto/ccp/ccp_dev.c
@@ -35,6 +35,53 @@ ccp_dev_start(struct rte_cryptodev *dev)
 	return 0;
 }
 
+struct ccp_queue *
+ccp_allot_queue(struct rte_cryptodev *cdev, int slot_req)
+{
+	int i, ret = 0;
+	struct ccp_device *dev;
+	struct ccp_private *priv = cdev->data->dev_private;
+
+	dev = TAILQ_NEXT(priv->last_dev, next);
+	if (unlikely(dev == NULL))
+		dev = TAILQ_FIRST(&ccp_list);
+	priv->last_dev = dev;
+	if (dev->qidx >= dev->cmd_q_count)
+		dev->qidx = 0;
+	ret = rte_atomic64_read(&dev->cmd_q[dev->qidx].free_slots);
+	if (ret >= slot_req)
+		return &dev->cmd_q[dev->qidx];
+	for (i = 0; i < dev->cmd_q_count; i++) {
+		dev->qidx++;
+		if (dev->qidx >= dev->cmd_q_count)
+			dev->qidx = 0;
+		ret = rte_atomic64_read(&dev->cmd_q[dev->qidx].free_slots);
+		if (ret >= slot_req)
+			return &dev->cmd_q[dev->qidx];
+	}
+	return NULL;
+}
+
+int
+ccp_read_hwrng(uint32_t *value)
+{
+	struct ccp_device *dev;
+
+	TAILQ_FOREACH(dev, &ccp_list, next) {
+		void *vaddr = (void *)(dev->pci.mem_resource[2].addr);
+
+		while (dev->hwrng_retries++ < CCP_MAX_TRNG_RETRIES) {
+			*value = CCP_READ_REG(vaddr, TRNG_OUT_REG);
+			if (*value) {
+				dev->hwrng_retries = 0;
+				return 0;
+			}
+		}
+		dev->hwrng_retries = 0;
+	}
+	return -1;
+}
+
 static const struct rte_memzone *
 ccp_queue_dma_zone_reserve(const char *queue_name,
 			   uint32_t queue_size,