[dpdk-dev,v5,1/4] bus/dpaa: scan for DPAA Crypto devices
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Commit Message
From: Akhil Goyal <akhil.goyal@nxp.com>
Signed-off-by: Shreyansh Jain <shreyansh.jain@nxp.com>
Signed-off-by: Akhil Goyal <akhil.goyal@nxp.com>
---
config/defconfig_arm64-dpaa-linuxapp-gcc | 3 ++
drivers/bus/dpaa/dpaa_bus.c | 52 ++++++++++++++++++++++++++++++++
2 files changed, 55 insertions(+)
@@ -57,3 +57,6 @@ CONFIG_RTE_MBUF_DEFAULT_MEMPOOL_OPS="dpaa"
# Compile software NXP DPAA PMD
CONFIG_RTE_LIBRTE_DPAA_PMD=y
+
+# DPAA CAAM driver instances
+CONFIG_RTE_LIBRTE_DPAA_MAX_CRYPTODEV=4
@@ -93,6 +93,22 @@ dpaa_remove_from_device_list(struct rte_dpaa_device *dev)
TAILQ_INSERT_TAIL(&rte_dpaa_bus.device_list, dev, next);
}
+/*
+ * Reads the SEC device from DTS
+ * Returns -1 if SEC devices not available, 0 otherwise
+ */
+static inline int
+dpaa_sec_available(void)
+{
+ const struct device_node *caam_node;
+
+ for_each_compatible_node(caam_node, NULL, "fsl,sec-v4.0") {
+ return 0;
+ }
+
+ return -1;
+}
+
static void dpaa_clean_device_list(void);
static int
@@ -134,6 +150,42 @@ dpaa_create_device_list(void)
rte_dpaa_bus.device_count = i;
+ /* Unlike case of ETH, RTE_LIBRTE_DPAA_MAX_CRYPTODEV SEC devices are
+ * constantly created only if "sec" property is found in the device
+ * tree. Logically there is no limit for number of devices (QI
+ * interfaces) that can be created.
+ */
+
+ if (dpaa_sec_available()) {
+ DPAA_BUS_LOG(INFO, "DPAA SEC devices are not available");
+ return 0;
+ }
+
+ /* Creating SEC Devices */
+ for (i = 0; i < RTE_LIBRTE_DPAA_MAX_CRYPTODEV; i++) {
+ dev = calloc(1, sizeof(struct rte_dpaa_device));
+ if (!dev) {
+ DPAA_BUS_LOG(ERR, "Failed to allocate SEC devices");
+ ret = -1;
+ goto cleanup;
+ }
+
+ dev->device_type = FSL_DPAA_CRYPTO;
+ dev->id.dev_id = rte_dpaa_bus.device_count + i;
+
+ /* Even though RTE_CRYPTODEV_NAME_MAX_LEN is valid length of
+ * crypto PMD, using RTE_ETH_NAME_MAX_LEN as that is the size
+ * allocated for dev->name/
+ */
+ memset(dev->name, 0, RTE_ETH_NAME_MAX_LEN);
+ sprintf(dev->name, "dpaa-sec%d", i);
+ DPAA_BUS_LOG(DEBUG, "Device added: %s", dev->name);
+
+ dpaa_add_to_device_list(dev);
+ }
+
+ rte_dpaa_bus.device_count += i;
+
return 0;
cleanup: