[dpdk-dev] [PATCH 5/6] net/ena: rework RSS configuration

[Michal Krawczyk <mk@semihalf.com>]

Allow user to specify his own hash key and hash ctrl if the
device is supporting that. HW interprets the key in reverse byte order,
so the PMD reorders the key before passing it to the ena_com layer.

Default key is being set in random matter each time the device is being
initialized.

Moreover, make minor adjustments for reta size setting in terms
of returning error values.

RSS code was moved to ena_rss.c file to improve readability.

Signed-off-by: Michal Krawczyk <mk@semihalf.com>
Reviewed-by: Shai Brandes <shaibran@amazon.com>
Reviewed-by: Shay Agroskin <shayagr@amazon.com>
Reviewed-by: Amit Bernstein <amitbern@amazon.com>
---
 doc/guides/nics/features/ena.ini       |   1 +
 doc/guides/rel_notes/release_21_08.rst |   1 +
 drivers/net/ena/ena_ethdev.c           | 230 ++--------
 drivers/net/ena/ena_ethdev.h           |  34 ++
 drivers/net/ena/ena_rss.c              | 592 +++++++++++++++++++++++++
 drivers/net/ena/meson.build            |   1 +
 6 files changed, 664 insertions(+), 195 deletions(-)
 create mode 100644 drivers/net/ena/ena_rss.c

diff --git a/doc/guides/nics/features/ena.ini b/doc/guides/nics/features/ena.ini
index 3976bbbda6..b971243ff0 100644
--- a/doc/guides/nics/features/ena.ini
+++ b/doc/guides/nics/features/ena.ini
@@ -12,6 +12,7 @@ Jumbo frame          = Y
 Scattered Rx         = Y
 TSO                  = Y
 RSS hash             = Y
+RSS key update       = Y
 RSS reta update      = Y
 L3 checksum offload  = Y
 L4 checksum offload  = Y
diff --git a/doc/guides/rel_notes/release_21_08.rst b/doc/guides/rel_notes/release_21_08.rst
index dac86a9d3e..d01784860e 100644
--- a/doc/guides/rel_notes/release_21_08.rst
+++ b/doc/guides/rel_notes/release_21_08.rst
@@ -100,6 +100,7 @@ New Features
   including:
 
   * Added Rx interrupt support.
+  * RSS hash function key reconfiguration support.
 
 * **Added support for Marvell CNXK crypto driver.**
 
diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
index 72f9887797..ee059fc165 100644
--- a/drivers/net/ena/ena_ethdev.c
+++ b/drivers/net/ena/ena_ethdev.c
@@ -4,12 +4,6 @@
  */
 
 #include <rte_string_fns.h>
-#include <rte_ether.h>
-#include <ethdev_driver.h>
-#include <ethdev_pci.h>
-#include <rte_tcp.h>
-#include <rte_atomic.h>
-#include <rte_dev.h>
 #include <rte_errno.h>
 #include <rte_version.h>
 #include <rte_net.h>
@@ -30,21 +24,12 @@
 #define DRV_MODULE_VER_MINOR	3
 #define DRV_MODULE_VER_SUBMINOR	0
 
-#define ENA_IO_TXQ_IDX(q)	(2 * (q))
-#define ENA_IO_RXQ_IDX(q)	(2 * (q) + 1)
-/*reverse version of ENA_IO_RXQ_IDX*/
-#define ENA_IO_RXQ_IDX_REV(q)	((q - 1) / 2)
-
 #define __MERGE_64B_H_L(h, l) (((uint64_t)h << 32) | l)
-#define TEST_BIT(val, bit_shift) (val & (1UL << bit_shift))
 
 #define GET_L4_HDR_LEN(mbuf)					\
 	((rte_pktmbuf_mtod_offset(mbuf,	struct rte_tcp_hdr *,	\
 		mbuf->l3_len + mbuf->l2_len)->data_off) >> 4)
 
-#define ENA_RX_RSS_TABLE_LOG_SIZE  7
-#define ENA_RX_RSS_TABLE_SIZE	(1 << ENA_RX_RSS_TABLE_LOG_SIZE)
-#define ENA_HASH_KEY_SIZE	40
 #define ETH_GSTRING_LEN	32
 
 #define ARRAY_SIZE(x) RTE_DIM(x)
@@ -223,12 +208,6 @@ static int ena_queue_start_all(struct rte_eth_dev *dev,
 static void ena_stats_restart(struct rte_eth_dev *dev);
 static int ena_infos_get(struct rte_eth_dev *dev,
 			 struct rte_eth_dev_info *dev_info);
-static int ena_rss_reta_update(struct rte_eth_dev *dev,
-			       struct rte_eth_rss_reta_entry64 *reta_conf,
-			       uint16_t reta_size);
-static int ena_rss_reta_query(struct rte_eth_dev *dev,
-			      struct rte_eth_rss_reta_entry64 *reta_conf,
-			      uint16_t reta_size);
 static void ena_interrupt_handler_rte(void *cb_arg);
 static void ena_timer_wd_callback(struct rte_timer *timer, void *arg);
 static void ena_destroy_device(struct rte_eth_dev *eth_dev);
@@ -276,27 +255,13 @@ static const struct eth_dev_ops ena_dev_ops = {
 	.reta_query           = ena_rss_reta_query,
 	.rx_queue_intr_enable = ena_rx_queue_intr_enable,
 	.rx_queue_intr_disable = ena_rx_queue_intr_disable,
+	.rss_hash_update      = ena_rss_hash_update,
+	.rss_hash_conf_get    = ena_rss_hash_conf_get,
 };
 
-void ena_rss_key_fill(void *key, size_t size)
-{
-	static bool key_generated;
-	static uint8_t default_key[ENA_HASH_KEY_SIZE];
-	size_t i;
-
-	RTE_ASSERT(size <= ENA_HASH_KEY_SIZE);
-
-	if (!key_generated) {
-		for (i = 0; i < ENA_HASH_KEY_SIZE; ++i)
-			default_key[i] = rte_rand() & 0xff;
-		key_generated = true;
-	}
-
-	rte_memcpy(key, default_key, size);
-}
-
 static inline void ena_rx_mbuf_prepare(struct rte_mbuf *mbuf,
-				       struct ena_com_rx_ctx *ena_rx_ctx)
+				       struct ena_com_rx_ctx *ena_rx_ctx,
+				       bool fill_hash)
 {
 	uint64_t ol_flags = 0;
 	uint32_t packet_type = 0;
@@ -324,7 +289,8 @@ static inline void ena_rx_mbuf_prepare(struct rte_mbuf *mbuf,
 		else
 			ol_flags |= PKT_RX_L4_CKSUM_GOOD;
 
-	if (likely((packet_type & ENA_PTYPE_HAS_HASH) && !ena_rx_ctx->frag)) {
+	if (fill_hash &&
+	    likely((packet_type & ENA_PTYPE_HAS_HASH) && !ena_rx_ctx->frag)) {
 		ol_flags |= PKT_RX_RSS_HASH;
 		mbuf->hash.rss = ena_rx_ctx->hash;
 	}
@@ -446,7 +412,8 @@ static void ena_config_host_info(struct ena_com_dev *ena_dev)
 	host_info->num_cpus = rte_lcore_count();
 
 	host_info->driver_supported_features =
-		ENA_ADMIN_HOST_INFO_RX_OFFSET_MASK;
+		ENA_ADMIN_HOST_INFO_RX_OFFSET_MASK |
+		ENA_ADMIN_HOST_INFO_RSS_CONFIGURABLE_FUNCTION_KEY_MASK;
 
 	rc = ena_com_set_host_attributes(ena_dev);
 	if (rc) {
@@ -556,151 +523,6 @@ ena_dev_reset(struct rte_eth_dev *dev)
 	return rc;
 }
 
-static int ena_rss_reta_update(struct rte_eth_dev *dev,
-			       struct rte_eth_rss_reta_entry64 *reta_conf,
-			       uint16_t reta_size)
-{
-	struct ena_adapter *adapter = dev->data->dev_private;
-	struct ena_com_dev *ena_dev = &adapter->ena_dev;
-	int rc, i;
-	u16 entry_value;
-	int conf_idx;
-	int idx;
-
-	if ((reta_size == 0) || (reta_conf == NULL))
-		return -EINVAL;
-
-	if (reta_size > ENA_RX_RSS_TABLE_SIZE) {
-		PMD_DRV_LOG(WARNING,
-			"Requested indirection table size (%d) is bigger than supported: %d\n",
-			reta_size, ENA_RX_RSS_TABLE_SIZE);
-		return -EINVAL;
-	}
-
-	for (i = 0 ; i < reta_size ; i++) {
-		/* each reta_conf is for 64 entries.
-		 * to support 128 we use 2 conf of 64
-		 */
-		conf_idx = i / RTE_RETA_GROUP_SIZE;
-		idx = i % RTE_RETA_GROUP_SIZE;
-		if (TEST_BIT(reta_conf[conf_idx].mask, idx)) {
-			entry_value =
-				ENA_IO_RXQ_IDX(reta_conf[conf_idx].reta[idx]);
-
-			rc = ena_com_indirect_table_fill_entry(ena_dev,
-							       i,
-							       entry_value);
-			if (unlikely(rc && rc != ENA_COM_UNSUPPORTED)) {
-				PMD_DRV_LOG(ERR,
-					"Cannot fill indirect table\n");
-				return rc;
-			}
-		}
-	}
-
-	rte_spinlock_lock(&adapter->admin_lock);
-	rc = ena_com_indirect_table_set(ena_dev);
-	rte_spinlock_unlock(&adapter->admin_lock);
-	if (unlikely(rc && rc != ENA_COM_UNSUPPORTED)) {
-		PMD_DRV_LOG(ERR, "Cannot flush the indirect table\n");
-		return rc;
-	}
-
-	PMD_DRV_LOG(DEBUG, "RSS configured %d entries for port %d\n",
-		reta_size, dev->data->port_id);
-
-	return 0;
-}
-
-/* Query redirection table. */
-static int ena_rss_reta_query(struct rte_eth_dev *dev,
-			      struct rte_eth_rss_reta_entry64 *reta_conf,
-			      uint16_t reta_size)
-{
-	struct ena_adapter *adapter = dev->data->dev_private;
-	struct ena_com_dev *ena_dev = &adapter->ena_dev;
-	int rc;
-	int i;
-	u32 indirect_table[ENA_RX_RSS_TABLE_SIZE] = {0};
-	int reta_conf_idx;
-	int reta_idx;
-
-	if (reta_size == 0 || reta_conf == NULL ||
-	    (reta_size > RTE_RETA_GROUP_SIZE && ((reta_conf + 1) == NULL)))
-		return -EINVAL;
-
-	rte_spinlock_lock(&adapter->admin_lock);
-	rc = ena_com_indirect_table_get(ena_dev, indirect_table);
-	rte_spinlock_unlock(&adapter->admin_lock);
-	if (unlikely(rc && rc != ENA_COM_UNSUPPORTED)) {
-		PMD_DRV_LOG(ERR, "Cannot get indirection table\n");
-		return -ENOTSUP;
-	}
-
-	for (i = 0 ; i < reta_size ; i++) {
-		reta_conf_idx = i / RTE_RETA_GROUP_SIZE;
-		reta_idx = i % RTE_RETA_GROUP_SIZE;
-		if (TEST_BIT(reta_conf[reta_conf_idx].mask, reta_idx))
-			reta_conf[reta_conf_idx].reta[reta_idx] =
-				ENA_IO_RXQ_IDX_REV(indirect_table[i]);
-	}
-
-	return 0;
-}
-
-static int ena_rss_init_default(struct ena_adapter *adapter)
-{
-	struct ena_com_dev *ena_dev = &adapter->ena_dev;
-	uint16_t nb_rx_queues = adapter->edev_data->nb_rx_queues;
-	int rc, i;
-	u32 val;
-
-	rc = ena_com_rss_init(ena_dev, ENA_RX_RSS_TABLE_LOG_SIZE);
-	if (unlikely(rc)) {
-		PMD_DRV_LOG(ERR, "Cannot init indirection table\n");
-		goto err_rss_init;
-	}
-
-	for (i = 0; i < ENA_RX_RSS_TABLE_SIZE; i++) {
-		val = i % nb_rx_queues;
-		rc = ena_com_indirect_table_fill_entry(ena_dev, i,
-						       ENA_IO_RXQ_IDX(val));
-		if (unlikely(rc && (rc != ENA_COM_UNSUPPORTED))) {
-			PMD_DRV_LOG(ERR, "Cannot fill indirection table\n");
-			goto err_fill_indir;
-		}
-	}
-
-	rc = ena_com_fill_hash_function(ena_dev, ENA_ADMIN_CRC32, NULL,
-					ENA_HASH_KEY_SIZE, 0xFFFFFFFF);
-	if (unlikely(rc && (rc != ENA_COM_UNSUPPORTED))) {
-		PMD_DRV_LOG(INFO, "Cannot fill hash function\n");
-		goto err_fill_indir;
-	}
-
-	rc = ena_com_set_default_hash_ctrl(ena_dev);
-	if (unlikely(rc && (rc != ENA_COM_UNSUPPORTED))) {
-		PMD_DRV_LOG(INFO, "Cannot fill hash control\n");
-		goto err_fill_indir;
-	}
-
-	rc = ena_com_indirect_table_set(ena_dev);
-	if (unlikely(rc && (rc != ENA_COM_UNSUPPORTED))) {
-		PMD_DRV_LOG(ERR, "Cannot flush indirection table\n");
-		goto err_fill_indir;
-	}
-	PMD_DRV_LOG(DEBUG, "RSS configured for port %d\n",
-		adapter->edev_data->port_id);
-
-	return 0;
-
-err_fill_indir:
-	ena_com_rss_destroy(ena_dev);
-err_rss_init:
-
-	return rc;
-}
-
 static void ena_rx_queue_release_all(struct rte_eth_dev *dev)
 {
 	struct ena_ring **queues = (struct ena_ring **)dev->data->rx_queues;
@@ -1093,9 +915,8 @@ static int ena_start(struct rte_eth_dev *dev)
 	if (rc)
 		goto err_start_tx;
 
-	if (adapter->edev_data->dev_conf.rxmode.mq_mode &
-	    ETH_MQ_RX_RSS_FLAG && adapter->edev_data->nb_rx_queues > 0) {
-		rc = ena_rss_init_default(adapter);
+	if (adapter->edev_data->dev_conf.rxmode.mq_mode & ETH_MQ_RX_RSS_FLAG) {
+		rc = ena_rss_configure(adapter);
 		if (rc)
 			goto err_rss_init;
 	}
@@ -1385,7 +1206,7 @@ static int ena_rx_queue_setup(struct rte_eth_dev *dev,
 			      uint16_t queue_idx,
 			      uint16_t nb_desc,
 			      unsigned int socket_id,
-			      __rte_unused const struct rte_eth_rxconf *rx_conf,
+			      const struct rte_eth_rxconf *rx_conf,
 			      struct rte_mempool *mp)
 {
 	struct ena_adapter *adapter = dev->data->dev_private;
@@ -1469,6 +1290,8 @@ static int ena_rx_queue_setup(struct rte_eth_dev *dev,
 	for (i = 0; i < nb_desc; i++)
 		rxq->empty_rx_reqs[i] = i;
 
+	rxq->offloads = rx_conf->offloads | dev->data->dev_conf.rxmode.offloads;
+
 	/* Store pointer to this queue in upper layer */
 	rxq->configured = 1;
 	dev->data->rx_queues[queue_idx] = rxq;
@@ -1932,6 +1755,9 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
 	adapter->offloads.rx_csum_supported =
 		(get_feat_ctx.offload.rx_supported &
 		ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_L4_IPV4_CSUM_MASK) != 0;
+	adapter->offloads.rss_hash_supported =
+		(get_feat_ctx.offload.rx_supported &
+		ENA_ADMIN_FEATURE_OFFLOAD_DESC_RX_HASH_MASK) != 0;
 
 	/* Copy MAC address and point DPDK to it */
 	eth_dev->data->mac_addrs = (struct rte_ether_addr *)adapter->mac_addr;
@@ -1939,6 +1765,12 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
 			get_feat_ctx.dev_attr.mac_addr,
 			(struct rte_ether_addr *)adapter->mac_addr);
 
+	rc = ena_com_rss_init(ena_dev, ENA_RX_RSS_TABLE_LOG_SIZE);
+	if (unlikely(rc != 0)) {
+		PMD_DRV_LOG(ERR, "Failed to initialize RSS in ENA device\n");
+		goto err_delete_debug_area;
+	}
+
 	adapter->drv_stats = rte_zmalloc("adapter stats",
 					 sizeof(*adapter->drv_stats),
 					 RTE_CACHE_LINE_SIZE);
@@ -1946,7 +1778,7 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
 		PMD_DRV_LOG(ERR,
 			"Failed to allocate memory for adapter statistics\n");
 		rc = -ENOMEM;
-		goto err_delete_debug_area;
+		goto err_rss_destroy;
 	}
 
 	rte_spinlock_init(&adapter->admin_lock);
@@ -1967,6 +1799,8 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev)
 
 	return 0;
 
+err_rss_destroy:
+	ena_com_rss_destroy(ena_dev);
 err_delete_debug_area:
 	ena_com_delete_debug_area(ena_dev);
 
@@ -1991,6 +1825,8 @@ static void ena_destroy_device(struct rte_eth_dev *eth_dev)
 	if (adapter->state != ENA_ADAPTER_STATE_CLOSED)
 		ena_close(eth_dev);
 
+	ena_com_rss_destroy(ena_dev);
+
 	ena_com_delete_debug_area(ena_dev);
 	ena_com_delete_host_info(ena_dev);
 
@@ -2097,13 +1933,14 @@ static int ena_infos_get(struct rte_eth_dev *dev,
 
 	/* Inform framework about available features */
 	dev_info->rx_offload_capa = rx_feat;
-	dev_info->rx_offload_capa |= DEV_RX_OFFLOAD_RSS_HASH;
+	if (adapter->offloads.rss_hash_supported)
+		dev_info->rx_offload_capa |= DEV_RX_OFFLOAD_RSS_HASH;
 	dev_info->rx_queue_offload_capa = rx_feat;
 	dev_info->tx_offload_capa = tx_feat;
 	dev_info->tx_queue_offload_capa = tx_feat;
 
-	dev_info->flow_type_rss_offloads = ETH_RSS_IP | ETH_RSS_TCP |
-					   ETH_RSS_UDP;
+	dev_info->flow_type_rss_offloads = ENA_ALL_RSS_HF;
+	dev_info->hash_key_size = ENA_HASH_KEY_SIZE;
 
 	dev_info->min_rx_bufsize = ENA_MIN_FRAME_LEN;
 	dev_info->max_rx_pktlen  = adapter->max_mtu;
@@ -2250,6 +2087,7 @@ static uint16_t eth_ena_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
 	uint16_t completed;
 	struct ena_com_rx_ctx ena_rx_ctx;
 	int i, rc = 0;
+	bool fill_hash;
 
 #ifdef RTE_ETHDEV_DEBUG_RX
 	/* Check adapter state */
@@ -2260,6 +2098,8 @@ static uint16_t eth_ena_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
 	}
 #endif
 
+	fill_hash = rx_ring->offloads & DEV_RX_OFFLOAD_RSS_HASH;
+
 	descs_in_use = rx_ring->ring_size -
 		ena_com_free_q_entries(rx_ring->ena_com_io_sq) - 1;
 	nb_pkts = RTE_MIN(descs_in_use, nb_pkts);
@@ -2306,7 +2146,7 @@ static uint16_t eth_ena_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
 		}
 
 		/* fill mbuf attributes if any */
-		ena_rx_mbuf_prepare(mbuf, &ena_rx_ctx);
+		ena_rx_mbuf_prepare(mbuf, &ena_rx_ctx, fill_hash);
 
 		if (unlikely(mbuf->ol_flags &
 				(PKT_RX_IP_CKSUM_BAD | PKT_RX_L4_CKSUM_BAD))) {
diff --git a/drivers/net/ena/ena_ethdev.h b/drivers/net/ena/ena_ethdev.h
index 78718b759b..06ac8b06b5 100644
--- a/drivers/net/ena/ena_ethdev.h
+++ b/drivers/net/ena/ena_ethdev.h
@@ -6,10 +6,16 @@
 #ifndef _ENA_ETHDEV_H_
 #define _ENA_ETHDEV_H_
 
+#include <rte_atomic.h>
+#include <rte_ether.h>
+#include <ethdev_driver.h>
+#include <ethdev_pci.h>
 #include <rte_cycles.h>
 #include <rte_pci.h>
 #include <rte_bus_pci.h>
 #include <rte_timer.h>
+#include <rte_dev.h>
+#include <rte_net.h>
 
 #include "ena_com.h"
 
@@ -43,6 +49,21 @@
 #define ENA_IDX_NEXT_MASKED(idx, mask) (((idx) + 1) & (mask))
 #define ENA_IDX_ADD_MASKED(idx, n, mask) (((idx) + (n)) & (mask))
 
+#define ENA_RX_RSS_TABLE_LOG_SIZE	7
+#define ENA_RX_RSS_TABLE_SIZE		(1 << ENA_RX_RSS_TABLE_LOG_SIZE)
+
+#define ENA_HASH_KEY_SIZE		40
+
+#define ENA_ALL_RSS_HF (ETH_RSS_NONFRAG_IPV4_TCP | ETH_RSS_NONFRAG_IPV4_UDP | \
+			ETH_RSS_NONFRAG_IPV6_TCP | ETH_RSS_NONFRAG_IPV6_UDP)
+
+#define ENA_IO_TXQ_IDX(q)		(2 * (q))
+#define ENA_IO_RXQ_IDX(q)		(2 * (q) + 1)
+/* Reversed version of ENA_IO_RXQ_IDX */
+#define ENA_IO_RXQ_IDX_REV(q)		(((q) - 1) / 2)
+
+extern struct ena_shared_data *ena_shared_data;
+
 struct ena_adapter;
 
 enum ena_ring_type {
@@ -205,6 +226,7 @@ struct ena_offloads {
 	bool tso4_supported;
 	bool tx_csum_supported;
 	bool rx_csum_supported;
+	bool rss_hash_supported;
 };
 
 /* board specific private data structure */
@@ -268,4 +290,16 @@ struct ena_adapter {
 	bool use_large_llq_hdr;
 };
 
+int ena_rss_reta_update(struct rte_eth_dev *dev,
+			struct rte_eth_rss_reta_entry64 *reta_conf,
+			uint16_t reta_size);
+int ena_rss_reta_query(struct rte_eth_dev *dev,
+		       struct rte_eth_rss_reta_entry64 *reta_conf,
+		       uint16_t reta_size);
+int ena_rss_hash_update(struct rte_eth_dev *dev,
+			struct rte_eth_rss_conf *rss_conf);
+int ena_rss_hash_conf_get(struct rte_eth_dev *dev,
+			  struct rte_eth_rss_conf *rss_conf);
+int ena_rss_configure(struct ena_adapter *adapter);
+
 #endif /* _ENA_ETHDEV_H_ */
diff --git a/drivers/net/ena/ena_rss.c b/drivers/net/ena/ena_rss.c
new file mode 100644
index 0000000000..3319986dfe
--- /dev/null
+++ b/drivers/net/ena/ena_rss.c
@@ -0,0 +1,592 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright (c) 2020 Amazon.com, Inc. or its affiliates.
+ * All rights reserved.
+ */
+
+#include "ena_ethdev.h"
+#include "ena_logs.h"
+
+#include <ena_admin_defs.h>
+
+#define TEST_BIT(val, bit_shift) ((val) & (1UL << (bit_shift)))
+
+#define ENA_HF_RSS_ALL_L2	(ENA_ADMIN_RSS_L3_SA | ENA_ADMIN_RSS_L3_DA)
+#define ENA_HF_RSS_ALL_L3	(ENA_ADMIN_RSS_L3_SA | ENA_ADMIN_RSS_L3_DA)
+#define ENA_HF_RSS_ALL_L4	(ENA_ADMIN_RSS_L4_SP | ENA_ADMIN_RSS_L4_DP)
+#define ENA_HF_RSS_ALL_L3_L4	(ENA_HF_RSS_ALL_L3 | ENA_HF_RSS_ALL_L4)
+#define ENA_HF_RSS_ALL_L2_L3_L4	(ENA_HF_RSS_ALL_L2 | ENA_HF_RSS_ALL_L3_L4)
+
+enum ena_rss_hash_fields {
+	ENA_HF_RSS_TCP4		= ENA_HF_RSS_ALL_L3_L4,
+	ENA_HF_RSS_UDP4		= ENA_HF_RSS_ALL_L3_L4,
+	ENA_HF_RSS_TCP6		= ENA_HF_RSS_ALL_L3_L4,
+	ENA_HF_RSS_UDP6		= ENA_HF_RSS_ALL_L3_L4,
+	ENA_HF_RSS_IP4		= ENA_HF_RSS_ALL_L3,
+	ENA_HF_RSS_IP6		= ENA_HF_RSS_ALL_L3,
+	ENA_HF_RSS_IP4_FRAG	= ENA_HF_RSS_ALL_L3,
+	ENA_HF_RSS_NOT_IP	= ENA_HF_RSS_ALL_L2,
+	ENA_HF_RSS_TCP6_EX	= ENA_HF_RSS_ALL_L3_L4,
+	ENA_HF_RSS_IP6_EX	= ENA_HF_RSS_ALL_L3,
+};
+
+static int ena_fill_indirect_table_default(struct ena_com_dev *ena_dev,
+					   size_t tbl_size,
+					   size_t queue_num);
+static uint64_t ena_admin_hf_to_eth_hf(enum ena_admin_flow_hash_proto proto,
+				       uint16_t field);
+static uint16_t ena_eth_hf_to_admin_hf(enum ena_admin_flow_hash_proto proto,
+				       uint64_t rss_hf);
+static int ena_set_hash_fields(struct ena_com_dev *ena_dev, uint64_t rss_hf);
+static int ena_rss_hash_set(struct ena_com_dev *ena_dev,
+			    struct rte_eth_rss_conf *rss_conf,
+			    bool default_allowed);
+static void ena_reorder_rss_hash_key(uint8_t *reordered_key,
+				    uint8_t *key,
+				    size_t key_size);
+static int ena_get_rss_hash_key(struct ena_com_dev *ena_dev, uint8_t *rss_key);
+
+void ena_rss_key_fill(void *key, size_t size)
+{
+	static bool key_generated;
+	static uint8_t default_key[ENA_HASH_KEY_SIZE];
+	size_t i;
+
+	RTE_ASSERT(size <= ENA_HASH_KEY_SIZE);
+
+	if (!key_generated) {
+		for (i = 0; i < ENA_HASH_KEY_SIZE; ++i)
+			default_key[i] = rte_rand() & 0xff;
+		key_generated = true;
+	}
+
+	rte_memcpy(key, default_key, size);
+}
+
+int ena_rss_reta_update(struct rte_eth_dev *dev,
+			struct rte_eth_rss_reta_entry64 *reta_conf,
+			uint16_t reta_size)
+{
+	struct ena_adapter *adapter = dev->data->dev_private;
+	struct ena_com_dev *ena_dev = &adapter->ena_dev;
+	int rc, i;
+	u16 entry_value;
+	int conf_idx;
+	int idx;
+
+	if (reta_size == 0 || reta_conf == NULL)
+		return -EINVAL;
+
+	if (!(dev->data->dev_conf.rxmode.offloads & DEV_RX_OFFLOAD_RSS_HASH)) {
+		PMD_DRV_LOG(ERR,
+			"RSS was not configured for the PMD\n");
+		return -ENOTSUP;
+	}
+
+	if (reta_size > ENA_RX_RSS_TABLE_SIZE) {
+		PMD_DRV_LOG(WARNING,
+			"Requested indirection table size (%d) is bigger than supported: %d\n",
+			reta_size, ENA_RX_RSS_TABLE_SIZE);
+		return -EINVAL;
+	}
+
+	for (i = 0 ; i < reta_size ; i++) {
+		/* Each reta_conf is for 64 entries.
+		 * To support 128 we use 2 conf of 64.
+		 */
+		conf_idx = i / RTE_RETA_GROUP_SIZE;
+		idx = i % RTE_RETA_GROUP_SIZE;
+		if (TEST_BIT(reta_conf[conf_idx].mask, idx)) {
+			entry_value =
+				ENA_IO_RXQ_IDX(reta_conf[conf_idx].reta[idx]);
+
+			rc = ena_com_indirect_table_fill_entry(ena_dev, i,
+				entry_value);
+			if (unlikely(rc != 0)) {
+				PMD_DRV_LOG(ERR,
+					"Cannot fill indirection table\n");
+				return rc;
+			}
+		}
+	}
+
+	rte_spinlock_lock(&adapter->admin_lock);
+	rc = ena_com_indirect_table_set(ena_dev);
+	rte_spinlock_unlock(&adapter->admin_lock);
+	if (unlikely(rc != 0)) {
+		PMD_DRV_LOG(ERR, "Cannot set the indirection table\n");
+		return rc;
+	}
+
+	PMD_DRV_LOG(DEBUG, "RSS configured %d entries for port %d\n",
+		reta_size, dev->data->port_id);
+
+	return 0;
+}
+
+/* Query redirection table. */
+int ena_rss_reta_query(struct rte_eth_dev *dev,
+		       struct rte_eth_rss_reta_entry64 *reta_conf,
+		       uint16_t reta_size)
+{
+	uint32_t indirect_table[ENA_RX_RSS_TABLE_SIZE] = { 0 };
+	struct ena_adapter *adapter = dev->data->dev_private;
+	struct ena_com_dev *ena_dev = &adapter->ena_dev;
+	int rc;
+	int i;
+	int reta_conf_idx;
+	int reta_idx;
+
+	if (reta_size == 0 || reta_conf == NULL ||
+	    (reta_size > RTE_RETA_GROUP_SIZE && ((reta_conf + 1) == NULL)))
+		return -EINVAL;
+
+	if (!(dev->data->dev_conf.rxmode.offloads & DEV_RX_OFFLOAD_RSS_HASH)) {
+		PMD_DRV_LOG(ERR,
+			"RSS was not configured for the PMD\n");
+		return -ENOTSUP;
+	}
+
+	rte_spinlock_lock(&adapter->admin_lock);
+	rc = ena_com_indirect_table_get(ena_dev, indirect_table);
+	rte_spinlock_unlock(&adapter->admin_lock);
+	if (unlikely(rc != 0)) {
+		PMD_DRV_LOG(ERR, "Cannot get indirection table\n");
+		return rc;
+	}
+
+	for (i = 0 ; i < reta_size ; i++) {
+		reta_conf_idx = i / RTE_RETA_GROUP_SIZE;
+		reta_idx = i % RTE_RETA_GROUP_SIZE;
+		if (TEST_BIT(reta_conf[reta_conf_idx].mask, reta_idx))
+			reta_conf[reta_conf_idx].reta[reta_idx] =
+				ENA_IO_RXQ_IDX_REV(indirect_table[i]);
+	}
+
+	return 0;
+}
+
+static int ena_fill_indirect_table_default(struct ena_com_dev *ena_dev,
+					   size_t tbl_size,
+					   size_t queue_num)
+{
+	size_t i;
+	int rc;
+	uint16_t val;
+
+	for (i = 0; i < tbl_size; ++i) {
+		val = i % queue_num;
+		rc = ena_com_indirect_table_fill_entry(ena_dev, i,
+			ENA_IO_RXQ_IDX(val));
+		if (unlikely(rc != 0)) {
+			PMD_DRV_LOG(DEBUG,
+				"Failed to set %zu indirection table entry with val %" PRIu16 "\n",
+				i, val);
+			return rc;
+		}
+	}
+
+	return 0;
+}
+
+static uint64_t ena_admin_hf_to_eth_hf(enum ena_admin_flow_hash_proto proto,
+				       uint16_t fields)
+{
+	uint64_t rss_hf = 0;
+
+	/* If no fields are activated, then RSS is disabled for this proto */
+	if ((fields & ENA_HF_RSS_ALL_L2_L3_L4) == 0)
+		return 0;
+
+	/* Convert proto to ETH flag */
+	switch (proto) {
+	case ENA_ADMIN_RSS_TCP4:
+		rss_hf |= ETH_RSS_NONFRAG_IPV4_TCP;
+		break;
+	case ENA_ADMIN_RSS_UDP4:
+		rss_hf |= ETH_RSS_NONFRAG_IPV4_UDP;
+		break;
+	case ENA_ADMIN_RSS_TCP6:
+		rss_hf |= ETH_RSS_NONFRAG_IPV6_TCP;
+		break;
+	case ENA_ADMIN_RSS_UDP6:
+		rss_hf |= ETH_RSS_NONFRAG_IPV6_UDP;
+		break;
+	case ENA_ADMIN_RSS_IP4:
+		rss_hf |= ETH_RSS_IPV4;
+		break;
+	case ENA_ADMIN_RSS_IP6:
+		rss_hf |= ETH_RSS_IPV6;
+		break;
+	case ENA_ADMIN_RSS_IP4_FRAG:
+		rss_hf |= ETH_RSS_FRAG_IPV4;
+		break;
+	case ENA_ADMIN_RSS_NOT_IP:
+		rss_hf |= ETH_RSS_L2_PAYLOAD;
+		break;
+	case ENA_ADMIN_RSS_TCP6_EX:
+		rss_hf |= ETH_RSS_IPV6_TCP_EX;
+		break;
+	case ENA_ADMIN_RSS_IP6_EX:
+		rss_hf |= ETH_RSS_IPV6_EX;
+		break;
+	default:
+		break;
+	};
+
+	/* Check if only DA or SA is being used for L3. */
+	switch (fields & ENA_HF_RSS_ALL_L3) {
+	case ENA_ADMIN_RSS_L3_SA:
+		rss_hf |= ETH_RSS_L3_SRC_ONLY;
+		break;
+	case ENA_ADMIN_RSS_L3_DA:
+		rss_hf |= ETH_RSS_L3_DST_ONLY;
+		break;
+	default:
+		break;
+	};
+
+	/* Check if only DA or SA is being used for L4. */
+	switch (fields & ENA_HF_RSS_ALL_L4) {
+	case ENA_ADMIN_RSS_L4_SP:
+		rss_hf |= ETH_RSS_L4_SRC_ONLY;
+		break;
+	case ENA_ADMIN_RSS_L4_DP:
+		rss_hf |= ETH_RSS_L4_DST_ONLY;
+		break;
+	default:
+		break;
+	};
+
+	return rss_hf;
+}
+
+static uint16_t ena_eth_hf_to_admin_hf(enum ena_admin_flow_hash_proto proto,
+				       uint64_t rss_hf)
+{
+	uint16_t fields_mask = 0;
+
+	/* L2 always uses source and destination addresses. */
+	fields_mask = ENA_ADMIN_RSS_L2_DA | ENA_ADMIN_RSS_L2_SA;
+
+	/* Determine which fields of L3 should be used. */
+	switch (rss_hf & (ETH_RSS_L3_SRC_ONLY | ETH_RSS_L3_DST_ONLY)) {
+	case ETH_RSS_L3_DST_ONLY:
+		fields_mask |= ENA_ADMIN_RSS_L3_DA;
+		break;
+	case ETH_RSS_L3_SRC_ONLY:
+		fields_mask |= ENA_ADMIN_RSS_L3_SA;
+		break;
+	default:
+		/*
+		 * If SRC nor DST aren't set, it means both of them should be
+		 * used.
+		 */
+		fields_mask |= ENA_HF_RSS_ALL_L3;
+	}
+
+	/* Determine which fields of L4 should be used. */
+	switch (rss_hf & (ETH_RSS_L4_SRC_ONLY | ETH_RSS_L4_DST_ONLY)) {
+	case ETH_RSS_L4_DST_ONLY:
+		fields_mask |= ENA_ADMIN_RSS_L4_DP;
+		break;
+	case ETH_RSS_L4_SRC_ONLY:
+		fields_mask |= ENA_ADMIN_RSS_L4_SP;
+		break;
+	default:
+		/*
+		 * If SRC nor DST aren't set, it means both of them should be
+		 * used.
+		 */
+		fields_mask |= ENA_HF_RSS_ALL_L4;
+	}
+
+	/* Return appropriate hash fields. */
+	switch (proto) {
+	case ENA_ADMIN_RSS_TCP4:
+		return ENA_HF_RSS_TCP4 & fields_mask;
+	case ENA_ADMIN_RSS_UDP4:
+		return ENA_HF_RSS_UDP4 & fields_mask;
+	case ENA_ADMIN_RSS_TCP6:
+		return ENA_HF_RSS_TCP6 & fields_mask;
+	case ENA_ADMIN_RSS_UDP6:
+		return ENA_HF_RSS_UDP6 & fields_mask;
+	case ENA_ADMIN_RSS_IP4:
+		return ENA_HF_RSS_IP4 & fields_mask;
+	case ENA_ADMIN_RSS_IP6:
+		return ENA_HF_RSS_IP6 & fields_mask;
+	case ENA_ADMIN_RSS_IP4_FRAG:
+		return ENA_HF_RSS_IP4_FRAG & fields_mask;
+	case ENA_ADMIN_RSS_NOT_IP:
+		return ENA_HF_RSS_NOT_IP & fields_mask;
+	case ENA_ADMIN_RSS_TCP6_EX:
+		return ENA_HF_RSS_TCP6_EX & fields_mask;
+	case ENA_ADMIN_RSS_IP6_EX:
+		return ENA_HF_RSS_IP6_EX & fields_mask;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static int ena_set_hash_fields(struct ena_com_dev *ena_dev, uint64_t rss_hf)
+{
+	struct ena_admin_proto_input selected_fields[ENA_ADMIN_RSS_PROTO_NUM] = {};
+	int rc, i;
+
+	/* Turn on appropriate fields for each requested packet type */
+	if ((rss_hf & ETH_RSS_NONFRAG_IPV4_TCP) != 0)
+		selected_fields[ENA_ADMIN_RSS_TCP4].fields =
+			ena_eth_hf_to_admin_hf(ENA_ADMIN_RSS_TCP4, rss_hf);
+
+	if ((rss_hf & ETH_RSS_NONFRAG_IPV4_UDP) != 0)
+		selected_fields[ENA_ADMIN_RSS_UDP4].fields =
+			ena_eth_hf_to_admin_hf(ENA_ADMIN_RSS_UDP4, rss_hf);
+
+	if ((rss_hf & ETH_RSS_NONFRAG_IPV6_TCP) != 0)
+		selected_fields[ENA_ADMIN_RSS_TCP6].fields =
+			ena_eth_hf_to_admin_hf(ENA_ADMIN_RSS_TCP6, rss_hf);
+
+	if ((rss_hf & ETH_RSS_NONFRAG_IPV6_UDP) != 0)
+		selected_fields[ENA_ADMIN_RSS_UDP6].fields =
+			ena_eth_hf_to_admin_hf(ENA_ADMIN_RSS_UDP6, rss_hf);
+
+	if ((rss_hf & ETH_RSS_IPV4) != 0)
+		selected_fields[ENA_ADMIN_RSS_IP4].fields =
+			ena_eth_hf_to_admin_hf(ENA_ADMIN_RSS_IP4, rss_hf);
+
+	if ((rss_hf & ETH_RSS_IPV6) != 0)
+		selected_fields[ENA_ADMIN_RSS_IP6].fields =
+			ena_eth_hf_to_admin_hf(ENA_ADMIN_RSS_IP6, rss_hf);
+
+	if ((rss_hf & ETH_RSS_FRAG_IPV4) != 0)
+		selected_fields[ENA_ADMIN_RSS_IP4_FRAG].fields =
+			ena_eth_hf_to_admin_hf(ENA_ADMIN_RSS_IP4_FRAG, rss_hf);
+
+	if ((rss_hf & ETH_RSS_L2_PAYLOAD) != 0)
+		selected_fields[ENA_ADMIN_RSS_NOT_IP].fields =
+			ena_eth_hf_to_admin_hf(ENA_ADMIN_RSS_NOT_IP, rss_hf);
+
+	if ((rss_hf & ETH_RSS_IPV6_TCP_EX) != 0)
+		selected_fields[ENA_ADMIN_RSS_TCP6_EX].fields =
+			ena_eth_hf_to_admin_hf(ENA_ADMIN_RSS_TCP6_EX, rss_hf);
+
+	if ((rss_hf & ETH_RSS_IPV6_EX) != 0)
+		selected_fields[ENA_ADMIN_RSS_IP6_EX].fields =
+			ena_eth_hf_to_admin_hf(ENA_ADMIN_RSS_IP6_EX, rss_hf);
+
+	/* Try to write them to the device */
+	for (i = 0; i < ENA_ADMIN_RSS_PROTO_NUM; i++) {
+		rc = ena_com_fill_hash_ctrl(ena_dev,
+			(enum ena_admin_flow_hash_proto)i,
+			selected_fields[i].fields);
+		if (unlikely(rc != 0)) {
+			PMD_DRV_LOG(DEBUG,
+				"Failed to set ENA HF %d with fields %" PRIu16 "\n",
+				i, selected_fields[i].fields);
+			return rc;
+		}
+	}
+
+	return 0;
+}
+
+static int ena_rss_hash_set(struct ena_com_dev *ena_dev,
+			    struct rte_eth_rss_conf *rss_conf,
+			    bool default_allowed)
+{
+	uint8_t hw_rss_key[ENA_HASH_KEY_SIZE];
+	uint8_t *rss_key;
+	int rc;
+
+	if (rss_conf->rss_key != NULL) {
+		/* Reorder the RSS key bytes for the hardware requirements. */
+		ena_reorder_rss_hash_key(hw_rss_key, rss_conf->rss_key,
+			ENA_HASH_KEY_SIZE);
+		rss_key = hw_rss_key;
+	} else {
+		rss_key = NULL;
+	}
+
+	/* If the rss_key is NULL, then the randomized key will be used. */
+	rc = ena_com_fill_hash_function(ena_dev, ENA_ADMIN_TOEPLITZ,
+		rss_key, ENA_HASH_KEY_SIZE, 0);
+	if (rc != 0 && !(default_allowed && rc == ENA_COM_UNSUPPORTED)) {
+		PMD_DRV_LOG(ERR,
+			"Failed to set RSS hash function in the device\n");
+		return rc;
+	}
+
+	rc = ena_set_hash_fields(ena_dev, rss_conf->rss_hf);
+	if (rc == ENA_COM_UNSUPPORTED) {
+		if (rss_conf->rss_key == NULL && !default_allowed) {
+			PMD_DRV_LOG(ERR,
+				"Setting RSS hash fields is not supported\n");
+			return -ENOTSUP;
+		}
+		PMD_DRV_LOG(WARNING,
+			"Setting RSS hash fields is not supported. Using default values: 0x%llx\n",
+			ENA_ALL_RSS_HF);
+	} else if (rc != 0)  {
+		PMD_DRV_LOG(ERR, "Failed to set RSS hash fields\n");
+		return rc;
+	}
+
+	return 0;
+}
+
+/* ENA HW interprets the RSS key in reverse order and as in a big endian
+ * notation (uint32_t values instead of bytes). Because of that, the key must be
+ * processed upon interaction with ena_com layer.
+ */
+static void ena_reorder_rss_hash_key(uint8_t *reordered_key,
+				    uint8_t *key,
+				    size_t key_size)
+{
+	size_t i, rev_i;
+
+	for (i = 0, rev_i = key_size - 1; i < key_size; ++i, --rev_i)
+		reordered_key[i] = key[rev_i];
+}
+
+static int ena_get_rss_hash_key(struct ena_com_dev *ena_dev, uint8_t *rss_key)
+{
+	uint8_t hw_rss_key[ENA_HASH_KEY_SIZE];
+	int rc;
+
+	/* The default RSS hash key cannot be retrieved from the HW. Unless it's
+	 * explicitly set, this operation shouldn't be supported.
+	 */
+	if (ena_dev->rss.hash_key == NULL) {
+		PMD_DRV_LOG(WARNING,
+			"Retrieving default RSS hash key is not supported\n");
+		return -ENOTSUP;
+	}
+
+	rc = ena_com_get_hash_key(ena_dev, hw_rss_key);
+	if (rc != 0)
+		return rc;
+
+	ena_reorder_rss_hash_key(rss_key, hw_rss_key, ENA_HASH_KEY_SIZE);
+
+	return 0;
+}
+
+int ena_rss_configure(struct ena_adapter *adapter)
+{
+	struct rte_eth_rss_conf *rss_conf;
+	struct ena_com_dev *ena_dev;
+	int rc;
+
+	ena_dev = &adapter->ena_dev;
+	rss_conf = &adapter->edev_data->dev_conf.rx_adv_conf.rss_conf;
+
+	if (adapter->edev_data->nb_rx_queues == 0)
+		return 0;
+
+	/* Restart the indirection table. The number of queues could change
+	 * between start/stop calls, so it must be reinitialized with default
+	 * values.
+	 */
+	rc = ena_fill_indirect_table_default(ena_dev, ENA_RX_RSS_TABLE_SIZE,
+		adapter->edev_data->nb_rx_queues);
+	if (unlikely(rc != 0)) {
+		PMD_DRV_LOG(ERR,
+			"Failed to fill indirection table with default values\n");
+		return rc;
+	}
+
+	rc = ena_com_indirect_table_set(ena_dev);
+	if (unlikely(rc != 0 && rc != ENA_COM_UNSUPPORTED)) {
+		PMD_DRV_LOG(ERR,
+			"Failed to set indirection table in the device\n");
+		return rc;
+	}
+
+	rc = ena_rss_hash_set(ena_dev, rss_conf, true);
+	if (unlikely(rc != 0)) {
+		PMD_DRV_LOG(ERR, "Failed to set RSS hash\n");
+		return rc;
+	}
+
+	PMD_DRV_LOG(DEBUG, "RSS configured for port %d\n",
+		adapter->edev_data->port_id);
+
+	return 0;
+}
+
+int ena_rss_hash_update(struct rte_eth_dev *dev,
+			struct rte_eth_rss_conf *rss_conf)
+{
+	struct ena_adapter *adapter = dev->data->dev_private;
+	int rc;
+
+	rte_spinlock_lock(&adapter->admin_lock);
+	rc = ena_rss_hash_set(&adapter->ena_dev, rss_conf, false);
+	rte_spinlock_unlock(&adapter->admin_lock);
+	if (unlikely(rc != 0)) {
+		PMD_DRV_LOG(ERR, "Failed to set RSS hash\n");
+		return rc;
+	}
+
+	return 0;
+}
+
+int ena_rss_hash_conf_get(struct rte_eth_dev *dev,
+			  struct rte_eth_rss_conf *rss_conf)
+{
+	struct ena_adapter *adapter = dev->data->dev_private;
+	struct ena_com_dev *ena_dev = &adapter->ena_dev;
+	enum ena_admin_flow_hash_proto proto;
+	uint64_t rss_hf = 0;
+	int rc, i;
+	uint16_t admin_hf;
+	static bool warn_once;
+
+	if (!(dev->data->dev_conf.rxmode.offloads & DEV_RX_OFFLOAD_RSS_HASH)) {
+		PMD_DRV_LOG(ERR, "RSS was not configured for the PMD\n");
+		return -ENOTSUP;
+	}
+
+	if (rss_conf->rss_key != NULL) {
+		rc = ena_get_rss_hash_key(ena_dev, rss_conf->rss_key);
+		if (unlikely(rc != 0)) {
+			PMD_DRV_LOG(ERR,
+				"Cannot retrieve RSS hash key, err: %d\n",
+				rc);
+			return rc;
+		}
+	}
+
+	for (i = 0; i < ENA_ADMIN_RSS_PROTO_NUM; ++i) {
+		proto = (enum ena_admin_flow_hash_proto)i;
+		rte_spinlock_lock(&adapter->admin_lock);
+		rc = ena_com_get_hash_ctrl(ena_dev, proto, &admin_hf);
+		rte_spinlock_unlock(&adapter->admin_lock);
+		if (rc == ENA_COM_UNSUPPORTED) {
+			/* As some devices may support only reading rss hash
+			 * key and not the hash ctrl, we want to notify the
+			 * caller that this feature is only partially supported
+			 * and do not return an error - the caller could be
+			 * interested only in the key value.
+			 */
+			if (!warn_once) {
+				PMD_DRV_LOG(WARNING,
+					"Reading hash control from the device is not supported. .rss_hf will contain a default value.\n");
+				warn_once = true;
+			}
+			rss_hf = ENA_ALL_RSS_HF;
+			break;
+		} else if (rc != 0) {
+			PMD_DRV_LOG(ERR,
+				"Failed to retrieve hash ctrl for proto: %d with err: %d\n",
+				i, rc);
+			return rc;
+		}
+
+		rss_hf |= ena_admin_hf_to_eth_hf(proto, admin_hf);
+	}
+
+	rss_conf->rss_hf = rss_hf;
+	return 0;
+}
diff --git a/drivers/net/ena/meson.build b/drivers/net/ena/meson.build
index cc912fceba..d02ed3f64f 100644
--- a/drivers/net/ena/meson.build
+++ b/drivers/net/ena/meson.build
@@ -9,6 +9,7 @@ endif
 
 sources = files(
         'ena_ethdev.c',
+        'ena_rss.c',
         'base/ena_com.c',
         'base/ena_eth_com.c',
 )
-- 
2.25.1