@@ -1,7 +1,7 @@
/* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2016 Freescale Semiconductor, Inc. All rights reserved.
- * Copyright 2016 NXP
+ * Copyright 2016-2018 NXP
*
*/
@@ -28,6 +28,56 @@ dpaa2_distset_to_dpkg_profile_cfg(
uint64_t req_dist_set,
struct dpkg_profile_cfg *kg_cfg);
+int
+rte_pmd_dpaa2_set_custom_hash(uint16_t port_id,
+ uint16_t offset,
+ uint8_t size)
+{
+ struct rte_eth_dev *eth_dev = &rte_eth_devices[port_id];
+ struct dpaa2_dev_priv *priv = eth_dev->data->dev_private;
+ struct fsl_mc_io *dpni = priv->hw;
+ struct dpni_rx_tc_dist_cfg tc_cfg;
+ struct dpkg_profile_cfg kg_cfg;
+ void *p_params;
+ int ret, tc_index = 0;
+
+ p_params = rte_zmalloc(
+ NULL, DIST_PARAM_IOVA_SIZE, RTE_CACHE_LINE_SIZE);
+ if (!p_params) {
+ DPAA2_PMD_ERR("Unable to allocate flow-dist parameters");
+ return -ENOMEM;
+ }
+
+ kg_cfg.extracts[0].type = DPKG_EXTRACT_FROM_DATA;
+ kg_cfg.extracts[0].extract.from_data.offset = offset;
+ kg_cfg.extracts[0].extract.from_data.size = size;
+ kg_cfg.num_extracts = 1;
+
+ ret = dpkg_prepare_key_cfg(&kg_cfg, p_params);
+ if (ret) {
+ DPAA2_PMD_ERR("Unable to prepare extract parameters");
+ rte_free(p_params);
+ return ret;
+ }
+
+ memset(&tc_cfg, 0, sizeof(struct dpni_rx_tc_dist_cfg));
+ tc_cfg.key_cfg_iova = (size_t)(DPAA2_VADDR_TO_IOVA(p_params));
+ tc_cfg.dist_size = eth_dev->data->nb_rx_queues;
+ tc_cfg.dist_mode = DPNI_DIST_MODE_HASH;
+
+ ret = dpni_set_rx_tc_dist(dpni, CMD_PRI_LOW, priv->token, tc_index,
+ &tc_cfg);
+ rte_free(p_params);
+ if (ret) {
+ DPAA2_PMD_ERR(
+ "Setting distribution for Rx failed with err: %d",
+ ret);
+ return ret;
+ }
+
+ return 0;
+}
+
int
dpaa2_setup_flow_dist(struct rte_eth_dev *eth_dev,
uint64_t req_dist_set)
@@ -59,4 +59,32 @@ rte_pmd_dpaa2_mux_flow_create(uint32_t dpdmux_id,
struct rte_flow_item *pattern[],
struct rte_flow_action *actions[]);
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change, or be removed, without prior notice
+ *
+ * Create a custom hash key on basis of offset of start of packet and size.
+ * for e.g. if we need GRE packets (non-vlan and without any extra headers)
+ * to be hashed on basis of inner IP header, we will provide offset as:
+ * 14 (eth) + 20 (IP) + 4 (GRE) + 12 (Inner Src offset) = 50 and size
+ * as 8 bytes.
+ *
+ * @param port_id
+ * The port identifier of the Ethernet device.
+ * @param offset
+ * Offset from the start of packet which needs to be included to
+ * calculate hash
+ * @param size
+ * Size of the hash input key
+ *
+ * @return
+ * - 0 if successful.
+ * - Negative in case of failure.
+ */
+__rte_experimental
+int
+rte_pmd_dpaa2_set_custom_hash(uint16_t port_id,
+ uint16_t offset,
+ uint8_t size);
+
#endif /* _RTE_PMD_DPAA2_H */
@@ -15,5 +15,6 @@ EXPERIMENTAL {
global:
rte_pmd_dpaa2_mux_flow_create;
+ rte_pmd_dpaa2_set_custom_hash;
rte_pmd_dpaa2_set_timestamp;
} DPDK_17.11;