[dpdk-dev] [PATCH v1] net/axgbe: add RSS reta/hash query and update

[dpdk-dev] [PATCH v1] net/axgbe: add RSS reta/hash query and update

[chandu]

From: Chandu Babu N <chandu@amd.com>

add support for RSS ethdev_ops reta_update, reta_query
rss_hash_update, rss_hash_conf_get

Signed-off-by: Chandu Babu N <chandu@amd.com>
---
 drivers/net/axgbe/axgbe_dev.c    |   5 +-
 drivers/net/axgbe/axgbe_ethdev.c | 146 +++++++++++++++++++++++++++++++
 drivers/net/axgbe/axgbe_ethdev.h |   3 +
 3 files changed, 152 insertions(+), 2 deletions(-)

diff --git a/drivers/net/axgbe/axgbe_dev.c b/drivers/net/axgbe/axgbe_dev.c
index 5f0f19592..af62eae3b 100644
--- a/drivers/net/axgbe/axgbe_dev.c
+++ b/drivers/net/axgbe/axgbe_dev.c
@@ -614,7 +614,7 @@ static int axgbe_write_rss_reg(struct axgbe_port *pdata, unsigned int type,
 	return -EBUSY;
 }
 
-static int axgbe_write_rss_hash_key(struct axgbe_port *pdata)
+int axgbe_write_rss_hash_key(struct axgbe_port *pdata)
 {
 	struct rte_eth_rss_conf *rss_conf;
 	unsigned int key_regs = sizeof(pdata->rss_key) / sizeof(u32);
@@ -638,7 +638,7 @@ static int axgbe_write_rss_hash_key(struct axgbe_port *pdata)
 	return 0;
 }
 
-static int axgbe_write_rss_lookup_table(struct axgbe_port *pdata)
+int axgbe_write_rss_lookup_table(struct axgbe_port *pdata)
 {
 	unsigned int i;
 	int ret;
@@ -683,6 +683,7 @@ static void axgbe_rss_options(struct axgbe_port *pdata)
 	uint64_t rss_hf;
 
 	rss_conf = &pdata->eth_dev->data->dev_conf.rx_adv_conf.rss_conf;
+	pdata->rss_hf = rss_conf->rss_hf;
 	rss_hf = rss_conf->rss_hf;
 
 	if (rss_hf & (ETH_RSS_IPV4 | ETH_RSS_IPV6))
diff --git a/drivers/net/axgbe/axgbe_ethdev.c b/drivers/net/axgbe/axgbe_ethdev.c
index 867058845..f42bb7a0d 100644
--- a/drivers/net/axgbe/axgbe_ethdev.c
+++ b/drivers/net/axgbe/axgbe_ethdev.c
@@ -60,6 +60,18 @@ axgbe_dev_xstats_get_names_by_id(struct rte_eth_dev *dev,
 				 const uint64_t *ids,
 				 unsigned int size);
 static int axgbe_dev_xstats_reset(struct rte_eth_dev *dev);
+static int
+axgbe_dev_rss_reta_update(struct rte_eth_dev *dev,
+			  struct rte_eth_rss_reta_entry64 *reta_conf,
+			  uint16_t reta_size);
+static int
+axgbe_dev_rss_reta_query(struct rte_eth_dev *dev,
+			 struct rte_eth_rss_reta_entry64 *reta_conf,
+			 uint16_t reta_size);
+static int axgbe_dev_rss_hash_update(struct rte_eth_dev *dev,
+				     struct rte_eth_rss_conf *rss_conf);
+static int axgbe_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
+				       struct rte_eth_rss_conf *rss_conf);
 static int  axgbe_dev_info_get(struct rte_eth_dev *dev,
 			       struct rte_eth_dev_info *dev_info);
 static int axgbe_flow_ctrl_get(struct rte_eth_dev *dev,
@@ -201,6 +213,10 @@ static const struct eth_dev_ops axgbe_eth_dev_ops = {
 	.xstats_get_names     = axgbe_dev_xstats_get_names,
 	.xstats_get_names_by_id = axgbe_dev_xstats_get_names_by_id,
 	.xstats_get_by_id     = axgbe_dev_xstats_get_by_id,
+	.reta_update          = axgbe_dev_rss_reta_update,
+	.reta_query           = axgbe_dev_rss_reta_query,
+	.rss_hash_update      = axgbe_dev_rss_hash_update,
+	.rss_hash_conf_get    = axgbe_dev_rss_hash_conf_get,
 	.dev_infos_get        = axgbe_dev_info_get,
 	.rx_queue_setup       = axgbe_dev_rx_queue_setup,
 	.rx_queue_release     = axgbe_dev_rx_queue_release,
@@ -450,6 +466,136 @@ axgbe_dev_mac_addr_add(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr,
 	return 0;
 }
 
+static int
+axgbe_dev_rss_reta_update(struct rte_eth_dev *dev,
+			  struct rte_eth_rss_reta_entry64 *reta_conf,
+			  uint16_t reta_size)
+{
+	struct axgbe_port *pdata = dev->data->dev_private;
+	unsigned int i, idx, shift;
+	int ret;
+
+	if (!pdata->rss_enable) {
+		PMD_DRV_LOG(ERR, "RSS not enabled\n");
+		return -ENOTSUP;
+	}
+
+	if (!reta_size || reta_size > AXGBE_RSS_MAX_TABLE_SIZE) {
+		PMD_DRV_LOG(ERR, "reta_size %d is not supported\n", reta_size);
+		return -EINVAL;
+	}
+
+	for (i = 0; i < reta_size; i++) {
+		idx = i / RTE_RETA_GROUP_SIZE;
+		shift = i % RTE_RETA_GROUP_SIZE;
+		if ((reta_conf[idx].mask & (1ULL << shift)) == 0)
+			continue;
+		pdata->rss_table[i] = reta_conf[idx].reta[shift];
+	}
+
+	/* Program the lookup table */
+	ret = axgbe_write_rss_lookup_table(pdata);
+	return ret;
+}
+
+static int
+axgbe_dev_rss_reta_query(struct rte_eth_dev *dev,
+			 struct rte_eth_rss_reta_entry64 *reta_conf,
+			 uint16_t reta_size)
+{
+	struct axgbe_port *pdata = dev->data->dev_private;
+	unsigned int i, idx, shift;
+
+	if (!pdata->rss_enable) {
+		PMD_DRV_LOG(ERR, "RSS not enabled\n");
+		return -ENOTSUP;
+	}
+
+	if (!reta_size || reta_size > AXGBE_RSS_MAX_TABLE_SIZE) {
+		PMD_DRV_LOG(ERR, "reta_size %d is not supported\n", reta_size);
+		return -EINVAL;
+	}
+
+	for (i = 0; i < reta_size; i++) {
+		idx = i / RTE_RETA_GROUP_SIZE;
+		shift = i % RTE_RETA_GROUP_SIZE;
+		if ((reta_conf[idx].mask & (1ULL << shift)) == 0)
+			continue;
+		reta_conf[idx].reta[shift] = pdata->rss_table[i];
+	}
+	return 0;
+}
+
+static int
+axgbe_dev_rss_hash_update(struct rte_eth_dev *dev,
+			  struct rte_eth_rss_conf *rss_conf)
+{
+	struct axgbe_port *pdata = dev->data->dev_private;
+	int ret;
+
+	if (!pdata->rss_enable) {
+		PMD_DRV_LOG(ERR, "RSS not enabled\n");
+		return -ENOTSUP;
+	}
+
+	if (!rss_conf) {
+		PMD_DRV_LOG(ERR, "rss_conf value isn't valid\n");
+		return -EINVAL;
+	}
+
+	if (rss_conf->rss_key &&
+	    rss_conf->rss_key_len == AXGBE_RSS_HASH_KEY_SIZE) {
+		rte_memcpy(pdata->rss_key, rss_conf->rss_key,
+		       AXGBE_RSS_HASH_KEY_SIZE);
+		/* Program the hash key */
+		ret = axgbe_write_rss_hash_key(pdata);
+		if (ret)
+			return ret;
+	}
+
+	pdata->rss_hf = rss_conf->rss_hf & AXGBE_RSS_OFFLOAD;
+
+	if (pdata->rss_hf & (ETH_RSS_IPV4 | ETH_RSS_IPV6))
+		AXGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, IP2TE, 1);
+	if (pdata->rss_hf &
+	    (ETH_RSS_NONFRAG_IPV4_TCP | ETH_RSS_NONFRAG_IPV6_TCP))
+		AXGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, TCP4TE, 1);
+	if (pdata->rss_hf &
+	    (ETH_RSS_NONFRAG_IPV4_UDP | ETH_RSS_NONFRAG_IPV6_UDP))
+		AXGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, UDP4TE, 1);
+
+	/* Set the RSS options */
+	AXGMAC_IOWRITE(pdata, MAC_RSSCR, pdata->rss_options);
+
+	return 0;
+}
+
+static int
+axgbe_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
+			    struct rte_eth_rss_conf *rss_conf)
+{
+	struct axgbe_port *pdata = dev->data->dev_private;
+
+	if (!pdata->rss_enable) {
+		PMD_DRV_LOG(ERR, "RSS not enabled\n");
+		return -ENOTSUP;
+	}
+
+	if (!rss_conf) {
+		PMD_DRV_LOG(ERR, "rss_conf value isn't valid\n");
+		return -EINVAL;
+	}
+
+	if (rss_conf->rss_key &&
+	    rss_conf->rss_key_len <= AXGBE_RSS_HASH_KEY_SIZE) {
+		rte_memcpy(rss_conf->rss_key, pdata->rss_key,
+		       AXGBE_RSS_HASH_KEY_SIZE);
+	}
+	rss_conf->rss_key_len = AXGBE_RSS_HASH_KEY_SIZE;
+	rss_conf->rss_hf = pdata->rss_hf;
+	return 0;
+}
+
 static void
 axgbe_dev_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)
 {
diff --git a/drivers/net/axgbe/axgbe_ethdev.h b/drivers/net/axgbe/axgbe_ethdev.h
index f10ec4a40..cedce5af6 100644
--- a/drivers/net/axgbe/axgbe_ethdev.h
+++ b/drivers/net/axgbe/axgbe_ethdev.h
@@ -594,6 +594,7 @@ struct axgbe_port {
 	uint32_t rss_table[AXGBE_RSS_MAX_TABLE_SIZE];
 	uint32_t rss_options;
 	int rss_enable;
+	uint64_t rss_hf;
 
 	/* Hardware features of the device */
 	struct axgbe_hw_features hw_feat;
@@ -653,5 +654,7 @@ void axgbe_init_function_ptrs_i2c(struct axgbe_i2c_if *i2c_if);
 void axgbe_set_mac_addn_addr(struct axgbe_port *pdata, u8 *addr,
 			     uint32_t index);
 void axgbe_set_mac_hash_table(struct axgbe_port *pdata, u8 *addr, bool add);
+int axgbe_write_rss_lookup_table(struct axgbe_port *pdata);
+int axgbe_write_rss_hash_key(struct axgbe_port *pdata);
 
 #endif /* RTE_ETH_AXGBE_H_ */
-- 
2.17.1

Re: [dpdk-dev] [PATCH v1] net/axgbe: add RSS reta/hash query and update

[Kumar, Ravi1]

[AMD Public Use]

Acked-by: Ravi Kumar <ravi1.kumar@amd.com>

>From: Chandu Babu N <chandu@amd.com>
>
>add support for RSS ethdev_ops reta_update, reta_query rss_hash_update, rss_hash_conf_get
>
>Signed-off-by: Chandu Babu N <chandu@amd.com>
>---
> drivers/net/axgbe/axgbe_dev.c    |   5 +-
> drivers/net/axgbe/axgbe_ethdev.c | 146 +++++++++++++++++++++++++++++++
> drivers/net/axgbe/axgbe_ethdev.h |   3 +
> 3 files changed, 152 insertions(+), 2 deletions(-)
>
>diff --git a/drivers/net/axgbe/axgbe_dev.c b/drivers/net/axgbe/axgbe_dev.c index 5f0f19592..af62eae3b 100644
>--- a/drivers/net/axgbe/axgbe_dev.c
>+++ b/drivers/net/axgbe/axgbe_dev.c
>@@ -614,7 +614,7 @@ static int axgbe_write_rss_reg(struct axgbe_port *pdata, unsigned int type,
> 	return -EBUSY;
> }
> 
>-static int axgbe_write_rss_hash_key(struct axgbe_port *pdata)
>+int axgbe_write_rss_hash_key(struct axgbe_port *pdata)
> {
> 	struct rte_eth_rss_conf *rss_conf;
> 	unsigned int key_regs = sizeof(pdata->rss_key) / sizeof(u32); @@ -638,7 +638,7 @@ static int axgbe_write_rss_hash_key(struct axgbe_port *pdata)
> 	return 0;
> }
> 
>-static int axgbe_write_rss_lookup_table(struct axgbe_port *pdata)
>+int axgbe_write_rss_lookup_table(struct axgbe_port *pdata)
> {
> 	unsigned int i;
> 	int ret;
>@@ -683,6 +683,7 @@ static void axgbe_rss_options(struct axgbe_port *pdata)
> 	uint64_t rss_hf;
> 
> 	rss_conf = &pdata->eth_dev->data->dev_conf.rx_adv_conf.rss_conf;
>+	pdata->rss_hf = rss_conf->rss_hf;
> 	rss_hf = rss_conf->rss_hf;
> 
> 	if (rss_hf & (ETH_RSS_IPV4 | ETH_RSS_IPV6)) diff --git a/drivers/net/axgbe/axgbe_ethdev.c b/drivers/net/axgbe/axgbe_ethdev.c
>index 867058845..f42bb7a0d 100644
>--- a/drivers/net/axgbe/axgbe_ethdev.c
>+++ b/drivers/net/axgbe/axgbe_ethdev.c
>@@ -60,6 +60,18 @@ axgbe_dev_xstats_get_names_by_id(struct rte_eth_dev *dev,
> 				 const uint64_t *ids,
> 				 unsigned int size);
> static int axgbe_dev_xstats_reset(struct rte_eth_dev *dev);
>+static int
>+axgbe_dev_rss_reta_update(struct rte_eth_dev *dev,
>+			  struct rte_eth_rss_reta_entry64 *reta_conf,
>+			  uint16_t reta_size);
>+static int
>+axgbe_dev_rss_reta_query(struct rte_eth_dev *dev,
>+			 struct rte_eth_rss_reta_entry64 *reta_conf,
>+			 uint16_t reta_size);
>+static int axgbe_dev_rss_hash_update(struct rte_eth_dev *dev,
>+				     struct rte_eth_rss_conf *rss_conf); static int 
>+axgbe_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
>+				       struct rte_eth_rss_conf *rss_conf);
> static int  axgbe_dev_info_get(struct rte_eth_dev *dev,
> 			       struct rte_eth_dev_info *dev_info);  static int axgbe_flow_ctrl_get(struct rte_eth_dev *dev, @@ -201,6 +213,10 @@ static const struct eth_dev_ops axgbe_eth_dev_ops = {
> 	.xstats_get_names     = axgbe_dev_xstats_get_names,
> 	.xstats_get_names_by_id = axgbe_dev_xstats_get_names_by_id,
> 	.xstats_get_by_id     = axgbe_dev_xstats_get_by_id,
>+	.reta_update          = axgbe_dev_rss_reta_update,
>+	.reta_query           = axgbe_dev_rss_reta_query,
>+	.rss_hash_update      = axgbe_dev_rss_hash_update,
>+	.rss_hash_conf_get    = axgbe_dev_rss_hash_conf_get,
> 	.dev_infos_get        = axgbe_dev_info_get,
> 	.rx_queue_setup       = axgbe_dev_rx_queue_setup,
> 	.rx_queue_release     = axgbe_dev_rx_queue_release,
>@@ -450,6 +466,136 @@ axgbe_dev_mac_addr_add(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr,
> 	return 0;
> }
> 
>+static int
>+axgbe_dev_rss_reta_update(struct rte_eth_dev *dev,
>+			  struct rte_eth_rss_reta_entry64 *reta_conf,
>+			  uint16_t reta_size)
>+{
>+	struct axgbe_port *pdata = dev->data->dev_private;
>+	unsigned int i, idx, shift;
>+	int ret;
>+
>+	if (!pdata->rss_enable) {
>+		PMD_DRV_LOG(ERR, "RSS not enabled\n");
>+		return -ENOTSUP;
>+	}
>+
>+	if (!reta_size || reta_size > AXGBE_RSS_MAX_TABLE_SIZE) {
>+		PMD_DRV_LOG(ERR, "reta_size %d is not supported\n", reta_size);
>+		return -EINVAL;
>+	}
>+
>+	for (i = 0; i < reta_size; i++) {
>+		idx = i / RTE_RETA_GROUP_SIZE;
>+		shift = i % RTE_RETA_GROUP_SIZE;
>+		if ((reta_conf[idx].mask & (1ULL << shift)) == 0)
>+			continue;
>+		pdata->rss_table[i] = reta_conf[idx].reta[shift];
>+	}
>+
>+	/* Program the lookup table */
>+	ret = axgbe_write_rss_lookup_table(pdata);
>+	return ret;
>+}
>+
>+static int
>+axgbe_dev_rss_reta_query(struct rte_eth_dev *dev,
>+			 struct rte_eth_rss_reta_entry64 *reta_conf,
>+			 uint16_t reta_size)
>+{
>+	struct axgbe_port *pdata = dev->data->dev_private;
>+	unsigned int i, idx, shift;
>+
>+	if (!pdata->rss_enable) {
>+		PMD_DRV_LOG(ERR, "RSS not enabled\n");
>+		return -ENOTSUP;
>+	}
>+
>+	if (!reta_size || reta_size > AXGBE_RSS_MAX_TABLE_SIZE) {
>+		PMD_DRV_LOG(ERR, "reta_size %d is not supported\n", reta_size);
>+		return -EINVAL;
>+	}
>+
>+	for (i = 0; i < reta_size; i++) {
>+		idx = i / RTE_RETA_GROUP_SIZE;
>+		shift = i % RTE_RETA_GROUP_SIZE;
>+		if ((reta_conf[idx].mask & (1ULL << shift)) == 0)
>+			continue;
>+		reta_conf[idx].reta[shift] = pdata->rss_table[i];
>+	}
>+	return 0;
>+}
>+
>+static int
>+axgbe_dev_rss_hash_update(struct rte_eth_dev *dev,
>+			  struct rte_eth_rss_conf *rss_conf) {
>+	struct axgbe_port *pdata = dev->data->dev_private;
>+	int ret;
>+
>+	if (!pdata->rss_enable) {
>+		PMD_DRV_LOG(ERR, "RSS not enabled\n");
>+		return -ENOTSUP;
>+	}
>+
>+	if (!rss_conf) {
>+		PMD_DRV_LOG(ERR, "rss_conf value isn't valid\n");
>+		return -EINVAL;
>+	}
>+
>+	if (rss_conf->rss_key &&
>+	    rss_conf->rss_key_len == AXGBE_RSS_HASH_KEY_SIZE) {
>+		rte_memcpy(pdata->rss_key, rss_conf->rss_key,
>+		       AXGBE_RSS_HASH_KEY_SIZE);
>+		/* Program the hash key */
>+		ret = axgbe_write_rss_hash_key(pdata);
>+		if (ret)
>+			return ret;
>+	}
>+
>+	pdata->rss_hf = rss_conf->rss_hf & AXGBE_RSS_OFFLOAD;
>+
>+	if (pdata->rss_hf & (ETH_RSS_IPV4 | ETH_RSS_IPV6))
>+		AXGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, IP2TE, 1);
>+	if (pdata->rss_hf &
>+	    (ETH_RSS_NONFRAG_IPV4_TCP | ETH_RSS_NONFRAG_IPV6_TCP))
>+		AXGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, TCP4TE, 1);
>+	if (pdata->rss_hf &
>+	    (ETH_RSS_NONFRAG_IPV4_UDP | ETH_RSS_NONFRAG_IPV6_UDP))
>+		AXGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, UDP4TE, 1);
>+
>+	/* Set the RSS options */
>+	AXGMAC_IOWRITE(pdata, MAC_RSSCR, pdata->rss_options);
>+
>+	return 0;
>+}
>+
>+static int
>+axgbe_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
>+			    struct rte_eth_rss_conf *rss_conf) {
>+	struct axgbe_port *pdata = dev->data->dev_private;
>+
>+	if (!pdata->rss_enable) {
>+		PMD_DRV_LOG(ERR, "RSS not enabled\n");
>+		return -ENOTSUP;
>+	}
>+
>+	if (!rss_conf) {
>+		PMD_DRV_LOG(ERR, "rss_conf value isn't valid\n");
>+		return -EINVAL;
>+	}
>+
>+	if (rss_conf->rss_key &&
>+	    rss_conf->rss_key_len <= AXGBE_RSS_HASH_KEY_SIZE) {
>+		rte_memcpy(rss_conf->rss_key, pdata->rss_key,
>+		       AXGBE_RSS_HASH_KEY_SIZE);
>+	}
>+	rss_conf->rss_key_len = AXGBE_RSS_HASH_KEY_SIZE;
>+	rss_conf->rss_hf = pdata->rss_hf;
>+	return 0;
>+}
>+
> static void
> axgbe_dev_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)  { diff --git a/drivers/net/axgbe/axgbe_ethdev.h b/drivers/net/axgbe/axgbe_ethdev.h
>index f10ec4a40..cedce5af6 100644
>--- a/drivers/net/axgbe/axgbe_ethdev.h
>+++ b/drivers/net/axgbe/axgbe_ethdev.h
>@@ -594,6 +594,7 @@ struct axgbe_port {
> 	uint32_t rss_table[AXGBE_RSS_MAX_TABLE_SIZE];
> 	uint32_t rss_options;
> 	int rss_enable;
>+	uint64_t rss_hf;
> 
> 	/* Hardware features of the device */
> 	struct axgbe_hw_features hw_feat;
>@@ -653,5 +654,7 @@ void axgbe_init_function_ptrs_i2c(struct axgbe_i2c_if *i2c_if);  void axgbe_set_mac_addn_addr(struct axgbe_port *pdata, u8 *addr,
> 			     uint32_t index);
> void axgbe_set_mac_hash_table(struct axgbe_port *pdata, u8 *addr, bool add);
>+int axgbe_write_rss_lookup_table(struct axgbe_port *pdata); int 
>+axgbe_write_rss_hash_key(struct axgbe_port *pdata);
> 
> #endif /* RTE_ETH_AXGBE_H_ */
>--
>2.17.1
>

Re: [dpdk-dev] [PATCH v1] net/axgbe: add RSS reta/hash query and update

[Andrew Rybchenko]

On 3/20/20 2:29 PM, chandu@amd.com wrote:
> From: Chandu Babu N <chandu@amd.com>
> 
> add support for RSS ethdev_ops reta_update, reta_query
> rss_hash_update, rss_hash_conf_get

The patch should update doc/guides/nics/features/axgbe.ini to
advertise corresponding features.

> 
> Signed-off-by: Chandu Babu N <chandu@amd.com>
> ---
>  drivers/net/axgbe/axgbe_dev.c    |   5 +-
>  drivers/net/axgbe/axgbe_ethdev.c | 146 +++++++++++++++++++++++++++++++
>  drivers/net/axgbe/axgbe_ethdev.h |   3 +
>  3 files changed, 152 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/axgbe/axgbe_dev.c b/drivers/net/axgbe/axgbe_dev.c
> index 5f0f19592..af62eae3b 100644
> --- a/drivers/net/axgbe/axgbe_dev.c
> +++ b/drivers/net/axgbe/axgbe_dev.c
> @@ -614,7 +614,7 @@ static int axgbe_write_rss_reg(struct axgbe_port *pdata, unsigned int type,
>  	return -EBUSY;
>  }
>  
> -static int axgbe_write_rss_hash_key(struct axgbe_port *pdata)
> +int axgbe_write_rss_hash_key(struct axgbe_port *pdata)
>  {
>  	struct rte_eth_rss_conf *rss_conf;
>  	unsigned int key_regs = sizeof(pdata->rss_key) / sizeof(u32);
> @@ -638,7 +638,7 @@ static int axgbe_write_rss_hash_key(struct axgbe_port *pdata)
>  	return 0;
>  }
>  
> -static int axgbe_write_rss_lookup_table(struct axgbe_port *pdata)
> +int axgbe_write_rss_lookup_table(struct axgbe_port *pdata)
>  {
>  	unsigned int i;
>  	int ret;
> @@ -683,6 +683,7 @@ static void axgbe_rss_options(struct axgbe_port *pdata)
>  	uint64_t rss_hf;
>  
>  	rss_conf = &pdata->eth_dev->data->dev_conf.rx_adv_conf.rss_conf;
> +	pdata->rss_hf = rss_conf->rss_hf;
>  	rss_hf = rss_conf->rss_hf;
>  
>  	if (rss_hf & (ETH_RSS_IPV4 | ETH_RSS_IPV6))
> diff --git a/drivers/net/axgbe/axgbe_ethdev.c b/drivers/net/axgbe/axgbe_ethdev.c
> index 867058845..f42bb7a0d 100644
> --- a/drivers/net/axgbe/axgbe_ethdev.c
> +++ b/drivers/net/axgbe/axgbe_ethdev.c
> @@ -60,6 +60,18 @@ axgbe_dev_xstats_get_names_by_id(struct rte_eth_dev *dev,
>  				 const uint64_t *ids,
>  				 unsigned int size);
>  static int axgbe_dev_xstats_reset(struct rte_eth_dev *dev);
> +static int
> +axgbe_dev_rss_reta_update(struct rte_eth_dev *dev,
> +			  struct rte_eth_rss_reta_entry64 *reta_conf,
> +			  uint16_t reta_size);
> +static int
> +axgbe_dev_rss_reta_query(struct rte_eth_dev *dev,
> +			 struct rte_eth_rss_reta_entry64 *reta_conf,
> +			 uint16_t reta_size);

It looks like style is inconsistent for above to declarations
vs declarations around.

> +static int axgbe_dev_rss_hash_update(struct rte_eth_dev *dev,
> +				     struct rte_eth_rss_conf *rss_conf);
> +static int axgbe_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
> +				       struct rte_eth_rss_conf *rss_conf);
>  static int  axgbe_dev_info_get(struct rte_eth_dev *dev,
>  			       struct rte_eth_dev_info *dev_info);
>  static int axgbe_flow_ctrl_get(struct rte_eth_dev *dev,
> @@ -201,6 +213,10 @@ static const struct eth_dev_ops axgbe_eth_dev_ops = {
>  	.xstats_get_names     = axgbe_dev_xstats_get_names,
>  	.xstats_get_names_by_id = axgbe_dev_xstats_get_names_by_id,
>  	.xstats_get_by_id     = axgbe_dev_xstats_get_by_id,
> +	.reta_update          = axgbe_dev_rss_reta_update,
> +	.reta_query           = axgbe_dev_rss_reta_query,
> +	.rss_hash_update      = axgbe_dev_rss_hash_update,
> +	.rss_hash_conf_get    = axgbe_dev_rss_hash_conf_get,
>  	.dev_infos_get        = axgbe_dev_info_get,
>  	.rx_queue_setup       = axgbe_dev_rx_queue_setup,
>  	.rx_queue_release     = axgbe_dev_rx_queue_release,
> @@ -450,6 +466,136 @@ axgbe_dev_mac_addr_add(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr,
>  	return 0;
>  }
>  
> +static int
> +axgbe_dev_rss_reta_update(struct rte_eth_dev *dev,
> +			  struct rte_eth_rss_reta_entry64 *reta_conf,
> +			  uint16_t reta_size)
> +{
> +	struct axgbe_port *pdata = dev->data->dev_private;
> +	unsigned int i, idx, shift;
> +	int ret;
> +
> +	if (!pdata->rss_enable) {
> +		PMD_DRV_LOG(ERR, "RSS not enabled\n");
> +		return -ENOTSUP;
> +	}
> +
> +	if (!reta_size || reta_size > AXGBE_RSS_MAX_TABLE_SIZE) {

DPDK style guide [1] says to use comparison to 0 instead of !

[1]
https://doc.dpdk.org/guides/contributing/coding_style.html#c-statement-style-and-conventions

> +		PMD_DRV_LOG(ERR, "reta_size %d is not supported\n", reta_size);
> +		return -EINVAL;
> +	}
> +
> +	for (i = 0; i < reta_size; i++) {
> +		idx = i / RTE_RETA_GROUP_SIZE;
> +		shift = i % RTE_RETA_GROUP_SIZE;
> +		if ((reta_conf[idx].mask & (1ULL << shift)) == 0)
> +			continue;
> +		pdata->rss_table[i] = reta_conf[idx].reta[shift];
> +	}
> +
> +	/* Program the lookup table */
> +	ret = axgbe_write_rss_lookup_table(pdata);
> +	return ret;
> +}
> +
> +static int
> +axgbe_dev_rss_reta_query(struct rte_eth_dev *dev,
> +			 struct rte_eth_rss_reta_entry64 *reta_conf,
> +			 uint16_t reta_size)
> +{
> +	struct axgbe_port *pdata = dev->data->dev_private;
> +	unsigned int i, idx, shift;
> +
> +	if (!pdata->rss_enable) {
> +		PMD_DRV_LOG(ERR, "RSS not enabled\n");
> +		return -ENOTSUP;
> +	}
> +
> +	if (!reta_size || reta_size > AXGBE_RSS_MAX_TABLE_SIZE) {

Here too

> +		PMD_DRV_LOG(ERR, "reta_size %d is not supported\n", reta_size);
> +		return -EINVAL;
> +	}
> +
> +	for (i = 0; i < reta_size; i++) {
> +		idx = i / RTE_RETA_GROUP_SIZE;
> +		shift = i % RTE_RETA_GROUP_SIZE;
> +		if ((reta_conf[idx].mask & (1ULL << shift)) == 0)
> +			continue;
> +		reta_conf[idx].reta[shift] = pdata->rss_table[i];
> +	}
> +	return 0;
> +}
> +
> +static int
> +axgbe_dev_rss_hash_update(struct rte_eth_dev *dev,
> +			  struct rte_eth_rss_conf *rss_conf)
> +{
> +	struct axgbe_port *pdata = dev->data->dev_private;
> +	int ret;
> +
> +	if (!pdata->rss_enable) {
> +		PMD_DRV_LOG(ERR, "RSS not enabled\n");
> +		return -ENOTSUP;
> +	}
> +
> +	if (!rss_conf) {

Here too. It should comparison vs NULL.

> +		PMD_DRV_LOG(ERR, "rss_conf value isn't valid\n");
> +		return -EINVAL;
> +	}
> +
> +	if (rss_conf->rss_key &&

and here

> +	    rss_conf->rss_key_len == AXGBE_RSS_HASH_KEY_SIZE) {
> +		rte_memcpy(pdata->rss_key, rss_conf->rss_key,
> +		       AXGBE_RSS_HASH_KEY_SIZE);
> +		/* Program the hash key */
> +		ret = axgbe_write_rss_hash_key(pdata);
> +		if (ret)

and here

> +			return ret;
> +	}
> +
> +	pdata->rss_hf = rss_conf->rss_hf & AXGBE_RSS_OFFLOAD;
> +
> +	if (pdata->rss_hf & (ETH_RSS_IPV4 | ETH_RSS_IPV6))
> +		AXGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, IP2TE, 1);
> +	if (pdata->rss_hf &
> +	    (ETH_RSS_NONFRAG_IPV4_TCP | ETH_RSS_NONFRAG_IPV6_TCP))
> +		AXGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, TCP4TE, 1);
> +	if (pdata->rss_hf &
> +	    (ETH_RSS_NONFRAG_IPV4_UDP | ETH_RSS_NONFRAG_IPV6_UDP))
> +		AXGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, UDP4TE, 1);
> +
> +	/* Set the RSS options */
> +	AXGMAC_IOWRITE(pdata, MAC_RSSCR, pdata->rss_options);
> +
> +	return 0;
> +}
> +
> +static int
> +axgbe_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
> +			    struct rte_eth_rss_conf *rss_conf)
> +{
> +	struct axgbe_port *pdata = dev->data->dev_private;
> +
> +	if (!pdata->rss_enable) {
> +		PMD_DRV_LOG(ERR, "RSS not enabled\n");
> +		return -ENOTSUP;
> +	}
> +
> +	if (!rss_conf) {

and here

> +		PMD_DRV_LOG(ERR, "rss_conf value isn't valid\n");
> +		return -EINVAL;
> +	}
> +
> +	if (rss_conf->rss_key &&

and here

> +	    rss_conf->rss_key_len <= AXGBE_RSS_HASH_KEY_SIZE) {
> +		rte_memcpy(rss_conf->rss_key, pdata->rss_key,
> +		       AXGBE_RSS_HASH_KEY_SIZE);
> +	}
> +	rss_conf->rss_key_len = AXGBE_RSS_HASH_KEY_SIZE;
> +	rss_conf->rss_hf = pdata->rss_hf;
> +	return 0;
> +}
> +
>  static void
>  axgbe_dev_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)
>  {
> diff --git a/drivers/net/axgbe/axgbe_ethdev.h b/drivers/net/axgbe/axgbe_ethdev.h
> index f10ec4a40..cedce5af6 100644
> --- a/drivers/net/axgbe/axgbe_ethdev.h
> +++ b/drivers/net/axgbe/axgbe_ethdev.h
> @@ -594,6 +594,7 @@ struct axgbe_port {
>  	uint32_t rss_table[AXGBE_RSS_MAX_TABLE_SIZE];
>  	uint32_t rss_options;
>  	int rss_enable;
> +	uint64_t rss_hf;
>  
>  	/* Hardware features of the device */
>  	struct axgbe_hw_features hw_feat;
> @@ -653,5 +654,7 @@ void axgbe_init_function_ptrs_i2c(struct axgbe_i2c_if *i2c_if);
>  void axgbe_set_mac_addn_addr(struct axgbe_port *pdata, u8 *addr,
>  			     uint32_t index);
>  void axgbe_set_mac_hash_table(struct axgbe_port *pdata, u8 *addr, bool add);
> +int axgbe_write_rss_lookup_table(struct axgbe_port *pdata);
> +int axgbe_write_rss_hash_key(struct axgbe_port *pdata);
>  
>  #endif /* RTE_ETH_AXGBE_H_ */
> 

Re: [dpdk-dev] [PATCH v1] net/axgbe: add RSS reta/hash query and update

[Namburu, Chandu-babu]

[AMD Official Use Only - Internal Distribution Only]

RSS functionality is already supported by AXGBE and it is updated in doc/guides/nics/features/axgbe.ini accordingly. 
This patch adds support to update RSS Hash key and RETA.

Regards,
Chandu
-----Original Message-----
From: Andrew Rybchenko <arybchenko@solarflare.com> 
Sent: Tuesday, March 24, 2020 3:25 PM
To: Namburu, Chandu-babu <chandu@amd.com>; dev@dpdk.org
Cc: Kumar, Ravi1 <Ravi1.Kumar@amd.com>; Somalapuram, Amaranath <Amaranath.Somalapuram@amd.com>
Subject: Re: [dpdk-dev] [PATCH v1] net/axgbe: add RSS reta/hash query and update

On 3/20/20 2:29 PM, chandu@amd.com wrote:
> From: Chandu Babu N <chandu@amd.com>
> 
> add support for RSS ethdev_ops reta_update, reta_query 
> rss_hash_update, rss_hash_conf_get

The patch should update doc/guides/nics/features/axgbe.ini to advertise corresponding features.

> 
> Signed-off-by: Chandu Babu N <chandu@amd.com>
> ---
>  drivers/net/axgbe/axgbe_dev.c    |   5 +-
>  drivers/net/axgbe/axgbe_ethdev.c | 146 +++++++++++++++++++++++++++++++
>  drivers/net/axgbe/axgbe_ethdev.h |   3 +
>  3 files changed, 152 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/axgbe/axgbe_dev.c 
> b/drivers/net/axgbe/axgbe_dev.c index 5f0f19592..af62eae3b 100644
> --- a/drivers/net/axgbe/axgbe_dev.c
> +++ b/drivers/net/axgbe/axgbe_dev.c
> @@ -614,7 +614,7 @@ static int axgbe_write_rss_reg(struct axgbe_port *pdata, unsigned int type,
>  	return -EBUSY;
>  }
>  
> -static int axgbe_write_rss_hash_key(struct axgbe_port *pdata)
> +int axgbe_write_rss_hash_key(struct axgbe_port *pdata)
>  {
>  	struct rte_eth_rss_conf *rss_conf;
>  	unsigned int key_regs = sizeof(pdata->rss_key) / sizeof(u32); @@ 
> -638,7 +638,7 @@ static int axgbe_write_rss_hash_key(struct axgbe_port *pdata)
>  	return 0;
>  }
>  
> -static int axgbe_write_rss_lookup_table(struct axgbe_port *pdata)
> +int axgbe_write_rss_lookup_table(struct axgbe_port *pdata)
>  {
>  	unsigned int i;
>  	int ret;
> @@ -683,6 +683,7 @@ static void axgbe_rss_options(struct axgbe_port *pdata)
>  	uint64_t rss_hf;
>  
>  	rss_conf = &pdata->eth_dev->data->dev_conf.rx_adv_conf.rss_conf;
> +	pdata->rss_hf = rss_conf->rss_hf;
>  	rss_hf = rss_conf->rss_hf;
>  
>  	if (rss_hf & (ETH_RSS_IPV4 | ETH_RSS_IPV6)) diff --git 
> a/drivers/net/axgbe/axgbe_ethdev.c b/drivers/net/axgbe/axgbe_ethdev.c
> index 867058845..f42bb7a0d 100644
> --- a/drivers/net/axgbe/axgbe_ethdev.c
> +++ b/drivers/net/axgbe/axgbe_ethdev.c
> @@ -60,6 +60,18 @@ axgbe_dev_xstats_get_names_by_id(struct rte_eth_dev *dev,
>  				 const uint64_t *ids,
>  				 unsigned int size);
>  static int axgbe_dev_xstats_reset(struct rte_eth_dev *dev);
> +static int
> +axgbe_dev_rss_reta_update(struct rte_eth_dev *dev,
> +			  struct rte_eth_rss_reta_entry64 *reta_conf,
> +			  uint16_t reta_size);
> +static int
> +axgbe_dev_rss_reta_query(struct rte_eth_dev *dev,
> +			 struct rte_eth_rss_reta_entry64 *reta_conf,
> +			 uint16_t reta_size);

It looks like style is inconsistent for above to declarations vs declarations around.

> +static int axgbe_dev_rss_hash_update(struct rte_eth_dev *dev,
> +				     struct rte_eth_rss_conf *rss_conf); static int 
> +axgbe_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
> +				       struct rte_eth_rss_conf *rss_conf);
>  static int  axgbe_dev_info_get(struct rte_eth_dev *dev,
>  			       struct rte_eth_dev_info *dev_info);  static int 
> axgbe_flow_ctrl_get(struct rte_eth_dev *dev, @@ -201,6 +213,10 @@ 
> static const struct eth_dev_ops axgbe_eth_dev_ops = {
>  	.xstats_get_names     = axgbe_dev_xstats_get_names,
>  	.xstats_get_names_by_id = axgbe_dev_xstats_get_names_by_id,
>  	.xstats_get_by_id     = axgbe_dev_xstats_get_by_id,
> +	.reta_update          = axgbe_dev_rss_reta_update,
> +	.reta_query           = axgbe_dev_rss_reta_query,
> +	.rss_hash_update      = axgbe_dev_rss_hash_update,
> +	.rss_hash_conf_get    = axgbe_dev_rss_hash_conf_get,
>  	.dev_infos_get        = axgbe_dev_info_get,
>  	.rx_queue_setup       = axgbe_dev_rx_queue_setup,
>  	.rx_queue_release     = axgbe_dev_rx_queue_release,
> @@ -450,6 +466,136 @@ axgbe_dev_mac_addr_add(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr,
>  	return 0;
>  }
>  
> +static int
> +axgbe_dev_rss_reta_update(struct rte_eth_dev *dev,
> +			  struct rte_eth_rss_reta_entry64 *reta_conf,
> +			  uint16_t reta_size)
> +{
> +	struct axgbe_port *pdata = dev->data->dev_private;
> +	unsigned int i, idx, shift;
> +	int ret;
> +
> +	if (!pdata->rss_enable) {
> +		PMD_DRV_LOG(ERR, "RSS not enabled\n");
> +		return -ENOTSUP;
> +	}
> +
> +	if (!reta_size || reta_size > AXGBE_RSS_MAX_TABLE_SIZE) {

DPDK style guide [1] says to use comparison to 0 instead of !

[1]
https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdoc.dpdk.org%2Fguides%2Fcontributing%2Fcoding_style.html%23c-statement-style-and-conventions&amp;data=02%7C01%7Cchandu%40amd.com%7C9eb51750daa24b1703cf08d7cfd96a2b%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637206405006771688&amp;sdata=LNbxA2nLRb3HaCoae%2B%2FBh1%2FK41ZJiC4tuLjiYOPYr2E%3D&amp;reserved=0

> +		PMD_DRV_LOG(ERR, "reta_size %d is not supported\n", reta_size);
> +		return -EINVAL;
> +	}
> +
> +	for (i = 0; i < reta_size; i++) {
> +		idx = i / RTE_RETA_GROUP_SIZE;
> +		shift = i % RTE_RETA_GROUP_SIZE;
> +		if ((reta_conf[idx].mask & (1ULL << shift)) == 0)
> +			continue;
> +		pdata->rss_table[i] = reta_conf[idx].reta[shift];
> +	}
> +
> +	/* Program the lookup table */
> +	ret = axgbe_write_rss_lookup_table(pdata);
> +	return ret;
> +}
> +
> +static int
> +axgbe_dev_rss_reta_query(struct rte_eth_dev *dev,
> +			 struct rte_eth_rss_reta_entry64 *reta_conf,
> +			 uint16_t reta_size)
> +{
> +	struct axgbe_port *pdata = dev->data->dev_private;
> +	unsigned int i, idx, shift;
> +
> +	if (!pdata->rss_enable) {
> +		PMD_DRV_LOG(ERR, "RSS not enabled\n");
> +		return -ENOTSUP;
> +	}
> +
> +	if (!reta_size || reta_size > AXGBE_RSS_MAX_TABLE_SIZE) {

Here too

> +		PMD_DRV_LOG(ERR, "reta_size %d is not supported\n", reta_size);
> +		return -EINVAL;
> +	}
> +
> +	for (i = 0; i < reta_size; i++) {
> +		idx = i / RTE_RETA_GROUP_SIZE;
> +		shift = i % RTE_RETA_GROUP_SIZE;
> +		if ((reta_conf[idx].mask & (1ULL << shift)) == 0)
> +			continue;
> +		reta_conf[idx].reta[shift] = pdata->rss_table[i];
> +	}
> +	return 0;
> +}
> +
> +static int
> +axgbe_dev_rss_hash_update(struct rte_eth_dev *dev,
> +			  struct rte_eth_rss_conf *rss_conf) {
> +	struct axgbe_port *pdata = dev->data->dev_private;
> +	int ret;
> +
> +	if (!pdata->rss_enable) {
> +		PMD_DRV_LOG(ERR, "RSS not enabled\n");
> +		return -ENOTSUP;
> +	}
> +
> +	if (!rss_conf) {

Here too. It should comparison vs NULL.

> +		PMD_DRV_LOG(ERR, "rss_conf value isn't valid\n");
> +		return -EINVAL;
> +	}
> +
> +	if (rss_conf->rss_key &&

and here

> +	    rss_conf->rss_key_len == AXGBE_RSS_HASH_KEY_SIZE) {
> +		rte_memcpy(pdata->rss_key, rss_conf->rss_key,
> +		       AXGBE_RSS_HASH_KEY_SIZE);
> +		/* Program the hash key */
> +		ret = axgbe_write_rss_hash_key(pdata);
> +		if (ret)

and here

> +			return ret;
> +	}
> +
> +	pdata->rss_hf = rss_conf->rss_hf & AXGBE_RSS_OFFLOAD;
> +
> +	if (pdata->rss_hf & (ETH_RSS_IPV4 | ETH_RSS_IPV6))
> +		AXGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, IP2TE, 1);
> +	if (pdata->rss_hf &
> +	    (ETH_RSS_NONFRAG_IPV4_TCP | ETH_RSS_NONFRAG_IPV6_TCP))
> +		AXGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, TCP4TE, 1);
> +	if (pdata->rss_hf &
> +	    (ETH_RSS_NONFRAG_IPV4_UDP | ETH_RSS_NONFRAG_IPV6_UDP))
> +		AXGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, UDP4TE, 1);
> +
> +	/* Set the RSS options */
> +	AXGMAC_IOWRITE(pdata, MAC_RSSCR, pdata->rss_options);
> +
> +	return 0;
> +}
> +
> +static int
> +axgbe_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
> +			    struct rte_eth_rss_conf *rss_conf) {
> +	struct axgbe_port *pdata = dev->data->dev_private;
> +
> +	if (!pdata->rss_enable) {
> +		PMD_DRV_LOG(ERR, "RSS not enabled\n");
> +		return -ENOTSUP;
> +	}
> +
> +	if (!rss_conf) {

and here

> +		PMD_DRV_LOG(ERR, "rss_conf value isn't valid\n");
> +		return -EINVAL;
> +	}
> +
> +	if (rss_conf->rss_key &&

and here

> +	    rss_conf->rss_key_len <= AXGBE_RSS_HASH_KEY_SIZE) {
> +		rte_memcpy(rss_conf->rss_key, pdata->rss_key,
> +		       AXGBE_RSS_HASH_KEY_SIZE);
> +	}
> +	rss_conf->rss_key_len = AXGBE_RSS_HASH_KEY_SIZE;
> +	rss_conf->rss_hf = pdata->rss_hf;
> +	return 0;
> +}
> +
>  static void
>  axgbe_dev_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)  { 
> diff --git a/drivers/net/axgbe/axgbe_ethdev.h 
> b/drivers/net/axgbe/axgbe_ethdev.h
> index f10ec4a40..cedce5af6 100644
> --- a/drivers/net/axgbe/axgbe_ethdev.h
> +++ b/drivers/net/axgbe/axgbe_ethdev.h
> @@ -594,6 +594,7 @@ struct axgbe_port {
>  	uint32_t rss_table[AXGBE_RSS_MAX_TABLE_SIZE];
>  	uint32_t rss_options;
>  	int rss_enable;
> +	uint64_t rss_hf;
>  
>  	/* Hardware features of the device */
>  	struct axgbe_hw_features hw_feat;
> @@ -653,5 +654,7 @@ void axgbe_init_function_ptrs_i2c(struct 
> axgbe_i2c_if *i2c_if);  void axgbe_set_mac_addn_addr(struct axgbe_port *pdata, u8 *addr,
>  			     uint32_t index);
>  void axgbe_set_mac_hash_table(struct axgbe_port *pdata, u8 *addr, 
> bool add);
> +int axgbe_write_rss_lookup_table(struct axgbe_port *pdata); int 
> +axgbe_write_rss_hash_key(struct axgbe_port *pdata);
>  
>  #endif /* RTE_ETH_AXGBE_H_ */
> 

Re: [dpdk-dev] [PATCH v1] net/axgbe: add RSS reta/hash query and update

[Andrew Rybchenko]

On 3/24/20 1:17 PM, Namburu, Chandu-babu wrote:
> [AMD Official Use Only - Internal Distribution Only]
> 
> RSS functionality is already supported by AXGBE and it is updated in doc/guides/nics/features/axgbe.ini accordingly. 
> This patch adds support to update RSS Hash key and RETA.

What about (see doc/guides/nics/features/default.ini)
RSS key update       =
RSS reta update      =

> Regards,
> Chandu
> -----Original Message-----
> From: Andrew Rybchenko <arybchenko@solarflare.com> 
> Sent: Tuesday, March 24, 2020 3:25 PM
> To: Namburu, Chandu-babu <chandu@amd.com>; dev@dpdk.org
> Cc: Kumar, Ravi1 <Ravi1.Kumar@amd.com>; Somalapuram, Amaranath <Amaranath.Somalapuram@amd.com>
> Subject: Re: [dpdk-dev] [PATCH v1] net/axgbe: add RSS reta/hash query and update
> 
> On 3/20/20 2:29 PM, chandu@amd.com wrote:
>> From: Chandu Babu N <chandu@amd.com>
>>
>> add support for RSS ethdev_ops reta_update, reta_query 
>> rss_hash_update, rss_hash_conf_get
> 
> The patch should update doc/guides/nics/features/axgbe.ini to advertise corresponding features.
> 
>>
>> Signed-off-by: Chandu Babu N <chandu@amd.com>
>> ---
>>  drivers/net/axgbe/axgbe_dev.c    |   5 +-
>>  drivers/net/axgbe/axgbe_ethdev.c | 146 +++++++++++++++++++++++++++++++
>>  drivers/net/axgbe/axgbe_ethdev.h |   3 +
>>  3 files changed, 152 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/net/axgbe/axgbe_dev.c 
>> b/drivers/net/axgbe/axgbe_dev.c index 5f0f19592..af62eae3b 100644
>> --- a/drivers/net/axgbe/axgbe_dev.c
>> +++ b/drivers/net/axgbe/axgbe_dev.c
>> @@ -614,7 +614,7 @@ static int axgbe_write_rss_reg(struct axgbe_port *pdata, unsigned int type,
>>  	return -EBUSY;
>>  }
>>  
>> -static int axgbe_write_rss_hash_key(struct axgbe_port *pdata)
>> +int axgbe_write_rss_hash_key(struct axgbe_port *pdata)
>>  {
>>  	struct rte_eth_rss_conf *rss_conf;
>>  	unsigned int key_regs = sizeof(pdata->rss_key) / sizeof(u32); @@ 
>> -638,7 +638,7 @@ static int axgbe_write_rss_hash_key(struct axgbe_port *pdata)
>>  	return 0;
>>  }
>>  
>> -static int axgbe_write_rss_lookup_table(struct axgbe_port *pdata)
>> +int axgbe_write_rss_lookup_table(struct axgbe_port *pdata)
>>  {
>>  	unsigned int i;
>>  	int ret;
>> @@ -683,6 +683,7 @@ static void axgbe_rss_options(struct axgbe_port *pdata)
>>  	uint64_t rss_hf;
>>  
>>  	rss_conf = &pdata->eth_dev->data->dev_conf.rx_adv_conf.rss_conf;
>> +	pdata->rss_hf = rss_conf->rss_hf;
>>  	rss_hf = rss_conf->rss_hf;
>>  
>>  	if (rss_hf & (ETH_RSS_IPV4 | ETH_RSS_IPV6)) diff --git 
>> a/drivers/net/axgbe/axgbe_ethdev.c b/drivers/net/axgbe/axgbe_ethdev.c
>> index 867058845..f42bb7a0d 100644
>> --- a/drivers/net/axgbe/axgbe_ethdev.c
>> +++ b/drivers/net/axgbe/axgbe_ethdev.c
>> @@ -60,6 +60,18 @@ axgbe_dev_xstats_get_names_by_id(struct rte_eth_dev *dev,
>>  				 const uint64_t *ids,
>>  				 unsigned int size);
>>  static int axgbe_dev_xstats_reset(struct rte_eth_dev *dev);
>> +static int
>> +axgbe_dev_rss_reta_update(struct rte_eth_dev *dev,
>> +			  struct rte_eth_rss_reta_entry64 *reta_conf,
>> +			  uint16_t reta_size);
>> +static int
>> +axgbe_dev_rss_reta_query(struct rte_eth_dev *dev,
>> +			 struct rte_eth_rss_reta_entry64 *reta_conf,
>> +			 uint16_t reta_size);
> 
> It looks like style is inconsistent for above to declarations vs declarations around.
> 
>> +static int axgbe_dev_rss_hash_update(struct rte_eth_dev *dev,
>> +				     struct rte_eth_rss_conf *rss_conf); static int 
>> +axgbe_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
>> +				       struct rte_eth_rss_conf *rss_conf);
>>  static int  axgbe_dev_info_get(struct rte_eth_dev *dev,
>>  			       struct rte_eth_dev_info *dev_info);  static int 
>> axgbe_flow_ctrl_get(struct rte_eth_dev *dev, @@ -201,6 +213,10 @@ 
>> static const struct eth_dev_ops axgbe_eth_dev_ops = {
>>  	.xstats_get_names     = axgbe_dev_xstats_get_names,
>>  	.xstats_get_names_by_id = axgbe_dev_xstats_get_names_by_id,
>>  	.xstats_get_by_id     = axgbe_dev_xstats_get_by_id,
>> +	.reta_update          = axgbe_dev_rss_reta_update,
>> +	.reta_query           = axgbe_dev_rss_reta_query,
>> +	.rss_hash_update      = axgbe_dev_rss_hash_update,
>> +	.rss_hash_conf_get    = axgbe_dev_rss_hash_conf_get,
>>  	.dev_infos_get        = axgbe_dev_info_get,
>>  	.rx_queue_setup       = axgbe_dev_rx_queue_setup,
>>  	.rx_queue_release     = axgbe_dev_rx_queue_release,
>> @@ -450,6 +466,136 @@ axgbe_dev_mac_addr_add(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr,
>>  	return 0;
>>  }
>>  
>> +static int
>> +axgbe_dev_rss_reta_update(struct rte_eth_dev *dev,
>> +			  struct rte_eth_rss_reta_entry64 *reta_conf,
>> +			  uint16_t reta_size)
>> +{
>> +	struct axgbe_port *pdata = dev->data->dev_private;
>> +	unsigned int i, idx, shift;
>> +	int ret;
>> +
>> +	if (!pdata->rss_enable) {
>> +		PMD_DRV_LOG(ERR, "RSS not enabled\n");
>> +		return -ENOTSUP;
>> +	}
>> +
>> +	if (!reta_size || reta_size > AXGBE_RSS_MAX_TABLE_SIZE) {
> 
> DPDK style guide [1] says to use comparison to 0 instead of !
> 
> [1]
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdoc.dpdk.org%2Fguides%2Fcontributing%2Fcoding_style.html%23c-statement-style-and-conventions&amp;data=02%7C01%7Cchandu%40amd.com%7C9eb51750daa24b1703cf08d7cfd96a2b%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637206405006771688&amp;sdata=LNbxA2nLRb3HaCoae%2B%2FBh1%2FK41ZJiC4tuLjiYOPYr2E%3D&amp;reserved=0
> 
>> +		PMD_DRV_LOG(ERR, "reta_size %d is not supported\n", reta_size);
>> +		return -EINVAL;
>> +	}
>> +
>> +	for (i = 0; i < reta_size; i++) {
>> +		idx = i / RTE_RETA_GROUP_SIZE;
>> +		shift = i % RTE_RETA_GROUP_SIZE;
>> +		if ((reta_conf[idx].mask & (1ULL << shift)) == 0)
>> +			continue;
>> +		pdata->rss_table[i] = reta_conf[idx].reta[shift];
>> +	}
>> +
>> +	/* Program the lookup table */
>> +	ret = axgbe_write_rss_lookup_table(pdata);
>> +	return ret;
>> +}
>> +
>> +static int
>> +axgbe_dev_rss_reta_query(struct rte_eth_dev *dev,
>> +			 struct rte_eth_rss_reta_entry64 *reta_conf,
>> +			 uint16_t reta_size)
>> +{
>> +	struct axgbe_port *pdata = dev->data->dev_private;
>> +	unsigned int i, idx, shift;
>> +
>> +	if (!pdata->rss_enable) {
>> +		PMD_DRV_LOG(ERR, "RSS not enabled\n");
>> +		return -ENOTSUP;
>> +	}
>> +
>> +	if (!reta_size || reta_size > AXGBE_RSS_MAX_TABLE_SIZE) {
> 
> Here too
> 
>> +		PMD_DRV_LOG(ERR, "reta_size %d is not supported\n", reta_size);
>> +		return -EINVAL;
>> +	}
>> +
>> +	for (i = 0; i < reta_size; i++) {
>> +		idx = i / RTE_RETA_GROUP_SIZE;
>> +		shift = i % RTE_RETA_GROUP_SIZE;
>> +		if ((reta_conf[idx].mask & (1ULL << shift)) == 0)
>> +			continue;
>> +		reta_conf[idx].reta[shift] = pdata->rss_table[i];
>> +	}
>> +	return 0;
>> +}
>> +
>> +static int
>> +axgbe_dev_rss_hash_update(struct rte_eth_dev *dev,
>> +			  struct rte_eth_rss_conf *rss_conf) {
>> +	struct axgbe_port *pdata = dev->data->dev_private;
>> +	int ret;
>> +
>> +	if (!pdata->rss_enable) {
>> +		PMD_DRV_LOG(ERR, "RSS not enabled\n");
>> +		return -ENOTSUP;
>> +	}
>> +
>> +	if (!rss_conf) {
> 
> Here too. It should comparison vs NULL.
> 
>> +		PMD_DRV_LOG(ERR, "rss_conf value isn't valid\n");
>> +		return -EINVAL;
>> +	}
>> +
>> +	if (rss_conf->rss_key &&
> 
> and here
> 
>> +	    rss_conf->rss_key_len == AXGBE_RSS_HASH_KEY_SIZE) {
>> +		rte_memcpy(pdata->rss_key, rss_conf->rss_key,
>> +		       AXGBE_RSS_HASH_KEY_SIZE);
>> +		/* Program the hash key */
>> +		ret = axgbe_write_rss_hash_key(pdata);
>> +		if (ret)
> 
> and here
> 
>> +			return ret;
>> +	}
>> +
>> +	pdata->rss_hf = rss_conf->rss_hf & AXGBE_RSS_OFFLOAD;
>> +
>> +	if (pdata->rss_hf & (ETH_RSS_IPV4 | ETH_RSS_IPV6))
>> +		AXGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, IP2TE, 1);
>> +	if (pdata->rss_hf &
>> +	    (ETH_RSS_NONFRAG_IPV4_TCP | ETH_RSS_NONFRAG_IPV6_TCP))
>> +		AXGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, TCP4TE, 1);
>> +	if (pdata->rss_hf &
>> +	    (ETH_RSS_NONFRAG_IPV4_UDP | ETH_RSS_NONFRAG_IPV6_UDP))
>> +		AXGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, UDP4TE, 1);
>> +
>> +	/* Set the RSS options */
>> +	AXGMAC_IOWRITE(pdata, MAC_RSSCR, pdata->rss_options);
>> +
>> +	return 0;
>> +}
>> +
>> +static int
>> +axgbe_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
>> +			    struct rte_eth_rss_conf *rss_conf) {
>> +	struct axgbe_port *pdata = dev->data->dev_private;
>> +
>> +	if (!pdata->rss_enable) {
>> +		PMD_DRV_LOG(ERR, "RSS not enabled\n");
>> +		return -ENOTSUP;
>> +	}
>> +
>> +	if (!rss_conf) {
> 
> and here
> 
>> +		PMD_DRV_LOG(ERR, "rss_conf value isn't valid\n");
>> +		return -EINVAL;
>> +	}
>> +
>> +	if (rss_conf->rss_key &&
> 
> and here
> 
>> +	    rss_conf->rss_key_len <= AXGBE_RSS_HASH_KEY_SIZE) {
>> +		rte_memcpy(rss_conf->rss_key, pdata->rss_key,
>> +		       AXGBE_RSS_HASH_KEY_SIZE);
>> +	}
>> +	rss_conf->rss_key_len = AXGBE_RSS_HASH_KEY_SIZE;
>> +	rss_conf->rss_hf = pdata->rss_hf;
>> +	return 0;
>> +}
>> +
>>  static void
>>  axgbe_dev_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)  { 
>> diff --git a/drivers/net/axgbe/axgbe_ethdev.h 
>> b/drivers/net/axgbe/axgbe_ethdev.h
>> index f10ec4a40..cedce5af6 100644
>> --- a/drivers/net/axgbe/axgbe_ethdev.h
>> +++ b/drivers/net/axgbe/axgbe_ethdev.h
>> @@ -594,6 +594,7 @@ struct axgbe_port {
>>  	uint32_t rss_table[AXGBE_RSS_MAX_TABLE_SIZE];
>>  	uint32_t rss_options;
>>  	int rss_enable;
>> +	uint64_t rss_hf;
>>  
>>  	/* Hardware features of the device */
>>  	struct axgbe_hw_features hw_feat;
>> @@ -653,5 +654,7 @@ void axgbe_init_function_ptrs_i2c(struct 
>> axgbe_i2c_if *i2c_if);  void axgbe_set_mac_addn_addr(struct axgbe_port *pdata, u8 *addr,
>>  			     uint32_t index);
>>  void axgbe_set_mac_hash_table(struct axgbe_port *pdata, u8 *addr, 
>> bool add);
>> +int axgbe_write_rss_lookup_table(struct axgbe_port *pdata); int 
>> +axgbe_write_rss_hash_key(struct axgbe_port *pdata);
>>  
>>  #endif /* RTE_ETH_AXGBE_H_ */
>>

Re: [dpdk-dev] [PATCH v1] net/axgbe: add RSS reta/hash query and update

[Namburu, Chandu-babu]

[AMD Public Use]

Thank you Andrew, will update these in v2 patch. 

-----Original Message-----
From: Andrew Rybchenko <arybchenko@solarflare.com> 
Sent: Tuesday, March 24, 2020 3:55 PM
To: Namburu, Chandu-babu <chandu@amd.com>; dev@dpdk.org
Cc: Kumar, Ravi1 <Ravi1.Kumar@amd.com>; Somalapuram, Amaranath <Amaranath.Somalapuram@amd.com>
Subject: Re: [dpdk-dev] [PATCH v1] net/axgbe: add RSS reta/hash query and update

On 3/24/20 1:17 PM, Namburu, Chandu-babu wrote:
> [AMD Official Use Only - Internal Distribution Only]
> 
> RSS functionality is already supported by AXGBE and it is updated in doc/guides/nics/features/axgbe.ini accordingly. 
> This patch adds support to update RSS Hash key and RETA.

What about (see doc/guides/nics/features/default.ini)
RSS key update       =
RSS reta update      =

> Regards,
> Chandu
> -----Original Message-----
> From: Andrew Rybchenko <arybchenko@solarflare.com>
> Sent: Tuesday, March 24, 2020 3:25 PM
> To: Namburu, Chandu-babu <chandu@amd.com>; dev@dpdk.org
> Cc: Kumar, Ravi1 <Ravi1.Kumar@amd.com>; Somalapuram, Amaranath 
> <Amaranath.Somalapuram@amd.com>
> Subject: Re: [dpdk-dev] [PATCH v1] net/axgbe: add RSS reta/hash query 
> and update
> 
> On 3/20/20 2:29 PM, chandu@amd.com wrote:
>> From: Chandu Babu N <chandu@amd.com>
>>
>> add support for RSS ethdev_ops reta_update, reta_query 
>> rss_hash_update, rss_hash_conf_get
> 
> The patch should update doc/guides/nics/features/axgbe.ini to advertise corresponding features.
> 
>>
>> Signed-off-by: Chandu Babu N <chandu@amd.com>
>> ---
>>  drivers/net/axgbe/axgbe_dev.c    |   5 +-
>>  drivers/net/axgbe/axgbe_ethdev.c | 146 +++++++++++++++++++++++++++++++
>>  drivers/net/axgbe/axgbe_ethdev.h |   3 +
>>  3 files changed, 152 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/net/axgbe/axgbe_dev.c 
>> b/drivers/net/axgbe/axgbe_dev.c index 5f0f19592..af62eae3b 100644
>> --- a/drivers/net/axgbe/axgbe_dev.c
>> +++ b/drivers/net/axgbe/axgbe_dev.c
>> @@ -614,7 +614,7 @@ static int axgbe_write_rss_reg(struct axgbe_port *pdata, unsigned int type,
>>  	return -EBUSY;
>>  }
>>  
>> -static int axgbe_write_rss_hash_key(struct axgbe_port *pdata)
>> +int axgbe_write_rss_hash_key(struct axgbe_port *pdata)
>>  {
>>  	struct rte_eth_rss_conf *rss_conf;
>>  	unsigned int key_regs = sizeof(pdata->rss_key) / sizeof(u32); @@
>> -638,7 +638,7 @@ static int axgbe_write_rss_hash_key(struct axgbe_port *pdata)
>>  	return 0;
>>  }
>>  
>> -static int axgbe_write_rss_lookup_table(struct axgbe_port *pdata)
>> +int axgbe_write_rss_lookup_table(struct axgbe_port *pdata)
>>  {
>>  	unsigned int i;
>>  	int ret;
>> @@ -683,6 +683,7 @@ static void axgbe_rss_options(struct axgbe_port *pdata)
>>  	uint64_t rss_hf;
>>  
>>  	rss_conf = &pdata->eth_dev->data->dev_conf.rx_adv_conf.rss_conf;
>> +	pdata->rss_hf = rss_conf->rss_hf;
>>  	rss_hf = rss_conf->rss_hf;
>>  
>>  	if (rss_hf & (ETH_RSS_IPV4 | ETH_RSS_IPV6)) diff --git 
>> a/drivers/net/axgbe/axgbe_ethdev.c b/drivers/net/axgbe/axgbe_ethdev.c
>> index 867058845..f42bb7a0d 100644
>> --- a/drivers/net/axgbe/axgbe_ethdev.c
>> +++ b/drivers/net/axgbe/axgbe_ethdev.c
>> @@ -60,6 +60,18 @@ axgbe_dev_xstats_get_names_by_id(struct rte_eth_dev *dev,
>>  				 const uint64_t *ids,
>>  				 unsigned int size);
>>  static int axgbe_dev_xstats_reset(struct rte_eth_dev *dev);
>> +static int
>> +axgbe_dev_rss_reta_update(struct rte_eth_dev *dev,
>> +			  struct rte_eth_rss_reta_entry64 *reta_conf,
>> +			  uint16_t reta_size);
>> +static int
>> +axgbe_dev_rss_reta_query(struct rte_eth_dev *dev,
>> +			 struct rte_eth_rss_reta_entry64 *reta_conf,
>> +			 uint16_t reta_size);
> 
> It looks like style is inconsistent for above to declarations vs declarations around.
> 
>> +static int axgbe_dev_rss_hash_update(struct rte_eth_dev *dev,
>> +				     struct rte_eth_rss_conf *rss_conf); static int 
>> +axgbe_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
>> +				       struct rte_eth_rss_conf *rss_conf);
>>  static int  axgbe_dev_info_get(struct rte_eth_dev *dev,
>>  			       struct rte_eth_dev_info *dev_info);  static int 
>> axgbe_flow_ctrl_get(struct rte_eth_dev *dev, @@ -201,6 +213,10 @@ 
>> static const struct eth_dev_ops axgbe_eth_dev_ops = {
>>  	.xstats_get_names     = axgbe_dev_xstats_get_names,
>>  	.xstats_get_names_by_id = axgbe_dev_xstats_get_names_by_id,
>>  	.xstats_get_by_id     = axgbe_dev_xstats_get_by_id,
>> +	.reta_update          = axgbe_dev_rss_reta_update,
>> +	.reta_query           = axgbe_dev_rss_reta_query,
>> +	.rss_hash_update      = axgbe_dev_rss_hash_update,
>> +	.rss_hash_conf_get    = axgbe_dev_rss_hash_conf_get,
>>  	.dev_infos_get        = axgbe_dev_info_get,
>>  	.rx_queue_setup       = axgbe_dev_rx_queue_setup,
>>  	.rx_queue_release     = axgbe_dev_rx_queue_release,
>> @@ -450,6 +466,136 @@ axgbe_dev_mac_addr_add(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr,
>>  	return 0;
>>  }
>>  
>> +static int
>> +axgbe_dev_rss_reta_update(struct rte_eth_dev *dev,
>> +			  struct rte_eth_rss_reta_entry64 *reta_conf,
>> +			  uint16_t reta_size)
>> +{
>> +	struct axgbe_port *pdata = dev->data->dev_private;
>> +	unsigned int i, idx, shift;
>> +	int ret;
>> +
>> +	if (!pdata->rss_enable) {
>> +		PMD_DRV_LOG(ERR, "RSS not enabled\n");
>> +		return -ENOTSUP;
>> +	}
>> +
>> +	if (!reta_size || reta_size > AXGBE_RSS_MAX_TABLE_SIZE) {
> 
> DPDK style guide [1] says to use comparison to 0 instead of !
> 
> [1]
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdoc.
> dpdk.org%2Fguides%2Fcontributing%2Fcoding_style.html%23c-statement-sty
> le-and-conventions&amp;data=02%7C01%7Cchandu%40amd.com%7C91ae3be800694
> 09de13308d7cfdd91e0%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C63720
> 6422857685216&amp;sdata=kr9UNBwAGI3ns4YB%2B5gJ4YUOuv%2FP6G6LmSfNH%2BYH
> uv0%3D&amp;reserved=0
> 
>> +		PMD_DRV_LOG(ERR, "reta_size %d is not supported\n", reta_size);
>> +		return -EINVAL;
>> +	}
>> +
>> +	for (i = 0; i < reta_size; i++) {
>> +		idx = i / RTE_RETA_GROUP_SIZE;
>> +		shift = i % RTE_RETA_GROUP_SIZE;
>> +		if ((reta_conf[idx].mask & (1ULL << shift)) == 0)
>> +			continue;
>> +		pdata->rss_table[i] = reta_conf[idx].reta[shift];
>> +	}
>> +
>> +	/* Program the lookup table */
>> +	ret = axgbe_write_rss_lookup_table(pdata);
>> +	return ret;
>> +}
>> +
>> +static int
>> +axgbe_dev_rss_reta_query(struct rte_eth_dev *dev,
>> +			 struct rte_eth_rss_reta_entry64 *reta_conf,
>> +			 uint16_t reta_size)
>> +{
>> +	struct axgbe_port *pdata = dev->data->dev_private;
>> +	unsigned int i, idx, shift;
>> +
>> +	if (!pdata->rss_enable) {
>> +		PMD_DRV_LOG(ERR, "RSS not enabled\n");
>> +		return -ENOTSUP;
>> +	}
>> +
>> +	if (!reta_size || reta_size > AXGBE_RSS_MAX_TABLE_SIZE) {
> 
> Here too
> 
>> +		PMD_DRV_LOG(ERR, "reta_size %d is not supported\n", reta_size);
>> +		return -EINVAL;
>> +	}
>> +
>> +	for (i = 0; i < reta_size; i++) {
>> +		idx = i / RTE_RETA_GROUP_SIZE;
>> +		shift = i % RTE_RETA_GROUP_SIZE;
>> +		if ((reta_conf[idx].mask & (1ULL << shift)) == 0)
>> +			continue;
>> +		reta_conf[idx].reta[shift] = pdata->rss_table[i];
>> +	}
>> +	return 0;
>> +}
>> +
>> +static int
>> +axgbe_dev_rss_hash_update(struct rte_eth_dev *dev,
>> +			  struct rte_eth_rss_conf *rss_conf) {
>> +	struct axgbe_port *pdata = dev->data->dev_private;
>> +	int ret;
>> +
>> +	if (!pdata->rss_enable) {
>> +		PMD_DRV_LOG(ERR, "RSS not enabled\n");
>> +		return -ENOTSUP;
>> +	}
>> +
>> +	if (!rss_conf) {
> 
> Here too. It should comparison vs NULL.
> 
>> +		PMD_DRV_LOG(ERR, "rss_conf value isn't valid\n");
>> +		return -EINVAL;
>> +	}
>> +
>> +	if (rss_conf->rss_key &&
> 
> and here
> 
>> +	    rss_conf->rss_key_len == AXGBE_RSS_HASH_KEY_SIZE) {
>> +		rte_memcpy(pdata->rss_key, rss_conf->rss_key,
>> +		       AXGBE_RSS_HASH_KEY_SIZE);
>> +		/* Program the hash key */
>> +		ret = axgbe_write_rss_hash_key(pdata);
>> +		if (ret)
> 
> and here
> 
>> +			return ret;
>> +	}
>> +
>> +	pdata->rss_hf = rss_conf->rss_hf & AXGBE_RSS_OFFLOAD;
>> +
>> +	if (pdata->rss_hf & (ETH_RSS_IPV4 | ETH_RSS_IPV6))
>> +		AXGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, IP2TE, 1);
>> +	if (pdata->rss_hf &
>> +	    (ETH_RSS_NONFRAG_IPV4_TCP | ETH_RSS_NONFRAG_IPV6_TCP))
>> +		AXGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, TCP4TE, 1);
>> +	if (pdata->rss_hf &
>> +	    (ETH_RSS_NONFRAG_IPV4_UDP | ETH_RSS_NONFRAG_IPV6_UDP))
>> +		AXGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, UDP4TE, 1);
>> +
>> +	/* Set the RSS options */
>> +	AXGMAC_IOWRITE(pdata, MAC_RSSCR, pdata->rss_options);
>> +
>> +	return 0;
>> +}
>> +
>> +static int
>> +axgbe_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
>> +			    struct rte_eth_rss_conf *rss_conf) {
>> +	struct axgbe_port *pdata = dev->data->dev_private;
>> +
>> +	if (!pdata->rss_enable) {
>> +		PMD_DRV_LOG(ERR, "RSS not enabled\n");
>> +		return -ENOTSUP;
>> +	}
>> +
>> +	if (!rss_conf) {
> 
> and here
> 
>> +		PMD_DRV_LOG(ERR, "rss_conf value isn't valid\n");
>> +		return -EINVAL;
>> +	}
>> +
>> +	if (rss_conf->rss_key &&
> 
> and here
> 
>> +	    rss_conf->rss_key_len <= AXGBE_RSS_HASH_KEY_SIZE) {
>> +		rte_memcpy(rss_conf->rss_key, pdata->rss_key,
>> +		       AXGBE_RSS_HASH_KEY_SIZE);
>> +	}
>> +	rss_conf->rss_key_len = AXGBE_RSS_HASH_KEY_SIZE;
>> +	rss_conf->rss_hf = pdata->rss_hf;
>> +	return 0;
>> +}
>> +
>>  static void
>>  axgbe_dev_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)  
>> { diff --git a/drivers/net/axgbe/axgbe_ethdev.h
>> b/drivers/net/axgbe/axgbe_ethdev.h
>> index f10ec4a40..cedce5af6 100644
>> --- a/drivers/net/axgbe/axgbe_ethdev.h
>> +++ b/drivers/net/axgbe/axgbe_ethdev.h
>> @@ -594,6 +594,7 @@ struct axgbe_port {
>>  	uint32_t rss_table[AXGBE_RSS_MAX_TABLE_SIZE];
>>  	uint32_t rss_options;
>>  	int rss_enable;
>> +	uint64_t rss_hf;
>>  
>>  	/* Hardware features of the device */
>>  	struct axgbe_hw_features hw_feat;
>> @@ -653,5 +654,7 @@ void axgbe_init_function_ptrs_i2c(struct
>> axgbe_i2c_if *i2c_if);  void axgbe_set_mac_addn_addr(struct axgbe_port *pdata, u8 *addr,
>>  			     uint32_t index);
>>  void axgbe_set_mac_hash_table(struct axgbe_port *pdata, u8 *addr, 
>> bool add);
>> +int axgbe_write_rss_lookup_table(struct axgbe_port *pdata); int 
>> +axgbe_write_rss_hash_key(struct axgbe_port *pdata);
>>  
>>  #endif /* RTE_ETH_AXGBE_H_ */
>>

[dpdk-dev] [PATCH v2] net/axgbe: add RSS reta/hash query and update

[chandu]

From: Chandu Babu N <chandu@amd.com>

add support for RSS reta/hash query and update function

v2:
modification as per Andrew Rybchenko review comments

Signed-off-by: Chandu Babu N <chandu@amd.com>
---
 doc/guides/nics/features/axgbe.ini |   2 +
 drivers/net/axgbe/axgbe_dev.c      |   5 +-
 drivers/net/axgbe/axgbe_ethdev.c   | 144 +++++++++++++++++++++++++++++
 drivers/net/axgbe/axgbe_ethdev.h   |   3 +
 4 files changed, 152 insertions(+), 2 deletions(-)

diff --git a/doc/guides/nics/features/axgbe.ini b/doc/guides/nics/features/axgbe.ini
index 0becaa097..34df0d1ee 100644
--- a/doc/guides/nics/features/axgbe.ini
+++ b/doc/guides/nics/features/axgbe.ini
@@ -11,6 +11,8 @@ Scattered Rx         = Y
 Promiscuous mode     = Y
 Allmulticast mode    = Y
 RSS hash             = Y
+RSS key update       = Y
+RSS reta update      = Y
 CRC offload          = Y
 L3 checksum offload  = Y
 L4 checksum offload  = Y
diff --git a/drivers/net/axgbe/axgbe_dev.c b/drivers/net/axgbe/axgbe_dev.c
index 5f0f19592..af62eae3b 100644
--- a/drivers/net/axgbe/axgbe_dev.c
+++ b/drivers/net/axgbe/axgbe_dev.c
@@ -614,7 +614,7 @@ static int axgbe_write_rss_reg(struct axgbe_port *pdata, unsigned int type,
 	return -EBUSY;
 }
 
-static int axgbe_write_rss_hash_key(struct axgbe_port *pdata)
+int axgbe_write_rss_hash_key(struct axgbe_port *pdata)
 {
 	struct rte_eth_rss_conf *rss_conf;
 	unsigned int key_regs = sizeof(pdata->rss_key) / sizeof(u32);
@@ -638,7 +638,7 @@ static int axgbe_write_rss_hash_key(struct axgbe_port *pdata)
 	return 0;
 }
 
-static int axgbe_write_rss_lookup_table(struct axgbe_port *pdata)
+int axgbe_write_rss_lookup_table(struct axgbe_port *pdata)
 {
 	unsigned int i;
 	int ret;
@@ -683,6 +683,7 @@ static void axgbe_rss_options(struct axgbe_port *pdata)
 	uint64_t rss_hf;
 
 	rss_conf = &pdata->eth_dev->data->dev_conf.rx_adv_conf.rss_conf;
+	pdata->rss_hf = rss_conf->rss_hf;
 	rss_hf = rss_conf->rss_hf;
 
 	if (rss_hf & (ETH_RSS_IPV4 | ETH_RSS_IPV6))
diff --git a/drivers/net/axgbe/axgbe_ethdev.c b/drivers/net/axgbe/axgbe_ethdev.c
index 867058845..619250fb0 100644
--- a/drivers/net/axgbe/axgbe_ethdev.c
+++ b/drivers/net/axgbe/axgbe_ethdev.c
@@ -60,6 +60,16 @@ axgbe_dev_xstats_get_names_by_id(struct rte_eth_dev *dev,
 				 const uint64_t *ids,
 				 unsigned int size);
 static int axgbe_dev_xstats_reset(struct rte_eth_dev *dev);
+static int axgbe_dev_rss_reta_update(struct rte_eth_dev *dev,
+			  struct rte_eth_rss_reta_entry64 *reta_conf,
+			  uint16_t reta_size);
+static int axgbe_dev_rss_reta_query(struct rte_eth_dev *dev,
+			 struct rte_eth_rss_reta_entry64 *reta_conf,
+			 uint16_t reta_size);
+static int axgbe_dev_rss_hash_update(struct rte_eth_dev *dev,
+				     struct rte_eth_rss_conf *rss_conf);
+static int axgbe_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
+				       struct rte_eth_rss_conf *rss_conf);
 static int  axgbe_dev_info_get(struct rte_eth_dev *dev,
 			       struct rte_eth_dev_info *dev_info);
 static int axgbe_flow_ctrl_get(struct rte_eth_dev *dev,
@@ -201,6 +211,10 @@ static const struct eth_dev_ops axgbe_eth_dev_ops = {
 	.xstats_get_names     = axgbe_dev_xstats_get_names,
 	.xstats_get_names_by_id = axgbe_dev_xstats_get_names_by_id,
 	.xstats_get_by_id     = axgbe_dev_xstats_get_by_id,
+	.reta_update          = axgbe_dev_rss_reta_update,
+	.reta_query           = axgbe_dev_rss_reta_query,
+	.rss_hash_update      = axgbe_dev_rss_hash_update,
+	.rss_hash_conf_get    = axgbe_dev_rss_hash_conf_get,
 	.dev_infos_get        = axgbe_dev_info_get,
 	.rx_queue_setup       = axgbe_dev_rx_queue_setup,
 	.rx_queue_release     = axgbe_dev_rx_queue_release,
@@ -450,6 +464,136 @@ axgbe_dev_mac_addr_add(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr,
 	return 0;
 }
 
+static int
+axgbe_dev_rss_reta_update(struct rte_eth_dev *dev,
+			  struct rte_eth_rss_reta_entry64 *reta_conf,
+			  uint16_t reta_size)
+{
+	struct axgbe_port *pdata = dev->data->dev_private;
+	unsigned int i, idx, shift;
+	int ret;
+
+	if (!pdata->rss_enable) {
+		PMD_DRV_LOG(ERR, "RSS not enabled\n");
+		return -ENOTSUP;
+	}
+
+	if (reta_size == 0 || reta_size > AXGBE_RSS_MAX_TABLE_SIZE) {
+		PMD_DRV_LOG(ERR, "reta_size %d is not supported\n", reta_size);
+		return -EINVAL;
+	}
+
+	for (i = 0; i < reta_size; i++) {
+		idx = i / RTE_RETA_GROUP_SIZE;
+		shift = i % RTE_RETA_GROUP_SIZE;
+		if ((reta_conf[idx].mask & (1ULL << shift)) == 0)
+			continue;
+		pdata->rss_table[i] = reta_conf[idx].reta[shift];
+	}
+
+	/* Program the lookup table */
+	ret = axgbe_write_rss_lookup_table(pdata);
+	return ret;
+}
+
+static int
+axgbe_dev_rss_reta_query(struct rte_eth_dev *dev,
+			 struct rte_eth_rss_reta_entry64 *reta_conf,
+			 uint16_t reta_size)
+{
+	struct axgbe_port *pdata = dev->data->dev_private;
+	unsigned int i, idx, shift;
+
+	if (!pdata->rss_enable) {
+		PMD_DRV_LOG(ERR, "RSS not enabled\n");
+		return -ENOTSUP;
+	}
+
+	if (reta_size == 0 || reta_size > AXGBE_RSS_MAX_TABLE_SIZE) {
+		PMD_DRV_LOG(ERR, "reta_size %d is not supported\n", reta_size);
+		return -EINVAL;
+	}
+
+	for (i = 0; i < reta_size; i++) {
+		idx = i / RTE_RETA_GROUP_SIZE;
+		shift = i % RTE_RETA_GROUP_SIZE;
+		if ((reta_conf[idx].mask & (1ULL << shift)) == 0)
+			continue;
+		reta_conf[idx].reta[shift] = pdata->rss_table[i];
+	}
+	return 0;
+}
+
+static int
+axgbe_dev_rss_hash_update(struct rte_eth_dev *dev,
+			  struct rte_eth_rss_conf *rss_conf)
+{
+	struct axgbe_port *pdata = dev->data->dev_private;
+	int ret;
+
+	if (!pdata->rss_enable) {
+		PMD_DRV_LOG(ERR, "RSS not enabled\n");
+		return -ENOTSUP;
+	}
+
+	if (rss_conf == NULL) {
+		PMD_DRV_LOG(ERR, "rss_conf value isn't valid\n");
+		return -EINVAL;
+	}
+
+	if (rss_conf->rss_key != NULL &&
+	    rss_conf->rss_key_len == AXGBE_RSS_HASH_KEY_SIZE) {
+		rte_memcpy(pdata->rss_key, rss_conf->rss_key,
+		       AXGBE_RSS_HASH_KEY_SIZE);
+		/* Program the hash key */
+		ret = axgbe_write_rss_hash_key(pdata);
+		if (ret != 0)
+			return ret;
+	}
+
+	pdata->rss_hf = rss_conf->rss_hf & AXGBE_RSS_OFFLOAD;
+
+	if (pdata->rss_hf & (ETH_RSS_IPV4 | ETH_RSS_IPV6))
+		AXGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, IP2TE, 1);
+	if (pdata->rss_hf &
+	    (ETH_RSS_NONFRAG_IPV4_TCP | ETH_RSS_NONFRAG_IPV6_TCP))
+		AXGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, TCP4TE, 1);
+	if (pdata->rss_hf &
+	    (ETH_RSS_NONFRAG_IPV4_UDP | ETH_RSS_NONFRAG_IPV6_UDP))
+		AXGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, UDP4TE, 1);
+
+	/* Set the RSS options */
+	AXGMAC_IOWRITE(pdata, MAC_RSSCR, pdata->rss_options);
+
+	return 0;
+}
+
+static int
+axgbe_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
+			    struct rte_eth_rss_conf *rss_conf)
+{
+	struct axgbe_port *pdata = dev->data->dev_private;
+
+	if (!pdata->rss_enable) {
+		PMD_DRV_LOG(ERR, "RSS not enabled\n");
+		return -ENOTSUP;
+	}
+
+	if (rss_conf == NULL) {
+		PMD_DRV_LOG(ERR, "rss_conf value isn't valid\n");
+		return -EINVAL;
+	}
+
+	if (rss_conf->rss_key != NULL &&
+	    rss_conf->rss_key_len >= AXGBE_RSS_HASH_KEY_SIZE) {
+		rte_memcpy(rss_conf->rss_key, pdata->rss_key,
+		       AXGBE_RSS_HASH_KEY_SIZE);
+	}
+	rss_conf->rss_key_len = AXGBE_RSS_HASH_KEY_SIZE;
+	rss_conf->rss_hf = pdata->rss_hf;
+	return 0;
+}
+
 static void
 axgbe_dev_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)
 {
diff --git a/drivers/net/axgbe/axgbe_ethdev.h b/drivers/net/axgbe/axgbe_ethdev.h
index f10ec4a40..cedce5af6 100644
--- a/drivers/net/axgbe/axgbe_ethdev.h
+++ b/drivers/net/axgbe/axgbe_ethdev.h
@@ -594,6 +594,7 @@ struct axgbe_port {
 	uint32_t rss_table[AXGBE_RSS_MAX_TABLE_SIZE];
 	uint32_t rss_options;
 	int rss_enable;
+	uint64_t rss_hf;
 
 	/* Hardware features of the device */
 	struct axgbe_hw_features hw_feat;
@@ -653,5 +654,7 @@ void axgbe_init_function_ptrs_i2c(struct axgbe_i2c_if *i2c_if);
 void axgbe_set_mac_addn_addr(struct axgbe_port *pdata, u8 *addr,
 			     uint32_t index);
 void axgbe_set_mac_hash_table(struct axgbe_port *pdata, u8 *addr, bool add);
+int axgbe_write_rss_lookup_table(struct axgbe_port *pdata);
+int axgbe_write_rss_hash_key(struct axgbe_port *pdata);
 
 #endif /* RTE_ETH_AXGBE_H_ */
-- 
2.17.1

Re: [dpdk-dev] [PATCH v2] net/axgbe: add RSS reta/hash query and update

[Somalapuram, Amaranath]

[AMD Official Use Only - Internal Distribution Only]

For series,
Acked-by: Somalapuram Amaranath <asomalap@amd.com>

-----Original Message-----
From: Namburu, Chandu-babu <chandu@amd.com>
Sent: Friday, May 29, 2020 5:19 PM
To: dev@dpdk.org
Cc: Somalapuram, Amaranath <Amaranath.Somalapuram@amd.com>
Subject: [PATCH v2] net/axgbe: add RSS reta/hash query and update

From: Chandu Babu N <chandu@amd.com>

add support for RSS reta/hash query and update function

v2:
modification as per Andrew Rybchenko review comments

Signed-off-by: Chandu Babu N <chandu@amd.com>
---
 doc/guides/nics/features/axgbe.ini |   2 +
 drivers/net/axgbe/axgbe_dev.c      |   5 +-
 drivers/net/axgbe/axgbe_ethdev.c   | 144 +++++++++++++++++++++++++++++
 drivers/net/axgbe/axgbe_ethdev.h   |   3 +
 4 files changed, 152 insertions(+), 2 deletions(-)

diff --git a/doc/guides/nics/features/axgbe.ini b/doc/guides/nics/features/axgbe.ini
index 0becaa097..34df0d1ee 100644
--- a/doc/guides/nics/features/axgbe.ini
+++ b/doc/guides/nics/features/axgbe.ini
@@ -11,6 +11,8 @@ Scattered Rx         = Y
 Promiscuous mode     = Y
 Allmulticast mode    = Y
 RSS hash             = Y
+RSS key update       = Y
+RSS reta update      = Y
 CRC offload          = Y
 L3 checksum offload  = Y
 L4 checksum offload  = Y
diff --git a/drivers/net/axgbe/axgbe_dev.c b/drivers/net/axgbe/axgbe_dev.c index 5f0f19592..af62eae3b 100644
--- a/drivers/net/axgbe/axgbe_dev.c
+++ b/drivers/net/axgbe/axgbe_dev.c
@@ -614,7 +614,7 @@ static int axgbe_write_rss_reg(struct axgbe_port *pdata, unsigned int type,
 return -EBUSY;
 }

-static int axgbe_write_rss_hash_key(struct axgbe_port *pdata)
+int axgbe_write_rss_hash_key(struct axgbe_port *pdata)
 {
 struct rte_eth_rss_conf *rss_conf;
 unsigned int key_regs = sizeof(pdata->rss_key) / sizeof(u32); @@ -638,7 +638,7 @@ static int axgbe_write_rss_hash_key(struct axgbe_port *pdata)
 return 0;
 }

-static int axgbe_write_rss_lookup_table(struct axgbe_port *pdata)
+int axgbe_write_rss_lookup_table(struct axgbe_port *pdata)
 {
 unsigned int i;
 int ret;
@@ -683,6 +683,7 @@ static void axgbe_rss_options(struct axgbe_port *pdata)
 uint64_t rss_hf;

 rss_conf = &pdata->eth_dev->data->dev_conf.rx_adv_conf.rss_conf;
+pdata->rss_hf = rss_conf->rss_hf;
 rss_hf = rss_conf->rss_hf;

 if (rss_hf & (ETH_RSS_IPV4 | ETH_RSS_IPV6)) diff --git a/drivers/net/axgbe/axgbe_ethdev.c b/drivers/net/axgbe/axgbe_ethdev.c
index 867058845..619250fb0 100644
--- a/drivers/net/axgbe/axgbe_ethdev.c
+++ b/drivers/net/axgbe/axgbe_ethdev.c
@@ -60,6 +60,16 @@ axgbe_dev_xstats_get_names_by_id(struct rte_eth_dev *dev,
  const uint64_t *ids,
  unsigned int size);
 static int axgbe_dev_xstats_reset(struct rte_eth_dev *dev);
+static int axgbe_dev_rss_reta_update(struct rte_eth_dev *dev,
+  struct rte_eth_rss_reta_entry64 *reta_conf,
+  uint16_t reta_size);
+static int axgbe_dev_rss_reta_query(struct rte_eth_dev *dev,
+ struct rte_eth_rss_reta_entry64 *reta_conf,
+ uint16_t reta_size);
+static int axgbe_dev_rss_hash_update(struct rte_eth_dev *dev,
+     struct rte_eth_rss_conf *rss_conf); static int
+axgbe_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
+       struct rte_eth_rss_conf *rss_conf);
 static int  axgbe_dev_info_get(struct rte_eth_dev *dev,
        struct rte_eth_dev_info *dev_info);  static int axgbe_flow_ctrl_get(struct rte_eth_dev *dev, @@ -201,6 +211,10 @@ static const struct eth_dev_ops axgbe_eth_dev_ops = {
 .xstats_get_names     = axgbe_dev_xstats_get_names,
 .xstats_get_names_by_id = axgbe_dev_xstats_get_names_by_id,
 .xstats_get_by_id     = axgbe_dev_xstats_get_by_id,
+.reta_update          = axgbe_dev_rss_reta_update,
+.reta_query           = axgbe_dev_rss_reta_query,
+.rss_hash_update      = axgbe_dev_rss_hash_update,
+.rss_hash_conf_get    = axgbe_dev_rss_hash_conf_get,
 .dev_infos_get        = axgbe_dev_info_get,
 .rx_queue_setup       = axgbe_dev_rx_queue_setup,
 .rx_queue_release     = axgbe_dev_rx_queue_release,
@@ -450,6 +464,136 @@ axgbe_dev_mac_addr_add(struct rte_eth_dev *dev, struct rte_ether_addr *mac_addr,
 return 0;
 }

+static int
+axgbe_dev_rss_reta_update(struct rte_eth_dev *dev,
+  struct rte_eth_rss_reta_entry64 *reta_conf,
+  uint16_t reta_size)
+{
+struct axgbe_port *pdata = dev->data->dev_private;
+unsigned int i, idx, shift;
+int ret;
+
+if (!pdata->rss_enable) {
+PMD_DRV_LOG(ERR, "RSS not enabled\n");
+return -ENOTSUP;
+}
+
+if (reta_size == 0 || reta_size > AXGBE_RSS_MAX_TABLE_SIZE) {
+PMD_DRV_LOG(ERR, "reta_size %d is not supported\n", reta_size);
+return -EINVAL;
+}
+
+for (i = 0; i < reta_size; i++) {
+idx = i / RTE_RETA_GROUP_SIZE;
+shift = i % RTE_RETA_GROUP_SIZE;
+if ((reta_conf[idx].mask & (1ULL << shift)) == 0)
+continue;
+pdata->rss_table[i] = reta_conf[idx].reta[shift];
+}
+
+/* Program the lookup table */
+ret = axgbe_write_rss_lookup_table(pdata);
+return ret;
+}
+
+static int
+axgbe_dev_rss_reta_query(struct rte_eth_dev *dev,
+ struct rte_eth_rss_reta_entry64 *reta_conf,
+ uint16_t reta_size)
+{
+struct axgbe_port *pdata = dev->data->dev_private;
+unsigned int i, idx, shift;
+
+if (!pdata->rss_enable) {
+PMD_DRV_LOG(ERR, "RSS not enabled\n");
+return -ENOTSUP;
+}
+
+if (reta_size == 0 || reta_size > AXGBE_RSS_MAX_TABLE_SIZE) {
+PMD_DRV_LOG(ERR, "reta_size %d is not supported\n", reta_size);
+return -EINVAL;
+}
+
+for (i = 0; i < reta_size; i++) {
+idx = i / RTE_RETA_GROUP_SIZE;
+shift = i % RTE_RETA_GROUP_SIZE;
+if ((reta_conf[idx].mask & (1ULL << shift)) == 0)
+continue;
+reta_conf[idx].reta[shift] = pdata->rss_table[i];
+}
+return 0;
+}
+
+static int
+axgbe_dev_rss_hash_update(struct rte_eth_dev *dev,
+  struct rte_eth_rss_conf *rss_conf) {
+struct axgbe_port *pdata = dev->data->dev_private;
+int ret;
+
+if (!pdata->rss_enable) {
+PMD_DRV_LOG(ERR, "RSS not enabled\n");
+return -ENOTSUP;
+}
+
+if (rss_conf == NULL) {
+PMD_DRV_LOG(ERR, "rss_conf value isn't valid\n");
+return -EINVAL;
+}
+
+if (rss_conf->rss_key != NULL &&
+    rss_conf->rss_key_len == AXGBE_RSS_HASH_KEY_SIZE) {
+rte_memcpy(pdata->rss_key, rss_conf->rss_key,
+       AXGBE_RSS_HASH_KEY_SIZE);
+/* Program the hash key */
+ret = axgbe_write_rss_hash_key(pdata);
+if (ret != 0)
+return ret;
+}
+
+pdata->rss_hf = rss_conf->rss_hf & AXGBE_RSS_OFFLOAD;
+
+if (pdata->rss_hf & (ETH_RSS_IPV4 | ETH_RSS_IPV6))
+AXGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, IP2TE, 1);
+if (pdata->rss_hf &
+    (ETH_RSS_NONFRAG_IPV4_TCP | ETH_RSS_NONFRAG_IPV6_TCP))
+AXGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, TCP4TE, 1);
+if (pdata->rss_hf &
+    (ETH_RSS_NONFRAG_IPV4_UDP | ETH_RSS_NONFRAG_IPV6_UDP))
+AXGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, UDP4TE, 1);
+
+/* Set the RSS options */
+AXGMAC_IOWRITE(pdata, MAC_RSSCR, pdata->rss_options);
+
+return 0;
+}
+
+static int
+axgbe_dev_rss_hash_conf_get(struct rte_eth_dev *dev,
+    struct rte_eth_rss_conf *rss_conf) {
+struct axgbe_port *pdata = dev->data->dev_private;
+
+if (!pdata->rss_enable) {
+PMD_DRV_LOG(ERR, "RSS not enabled\n");
+return -ENOTSUP;
+}
+
+if (rss_conf == NULL) {
+PMD_DRV_LOG(ERR, "rss_conf value isn't valid\n");
+return -EINVAL;
+}
+
+if (rss_conf->rss_key != NULL &&
+    rss_conf->rss_key_len >= AXGBE_RSS_HASH_KEY_SIZE) {
+rte_memcpy(rss_conf->rss_key, pdata->rss_key,
+       AXGBE_RSS_HASH_KEY_SIZE);
+}
+rss_conf->rss_key_len = AXGBE_RSS_HASH_KEY_SIZE;
+rss_conf->rss_hf = pdata->rss_hf;
+return 0;
+}
+
 static void
 axgbe_dev_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)  { diff --git a/drivers/net/axgbe/axgbe_ethdev.h b/drivers/net/axgbe/axgbe_ethdev.h
index f10ec4a40..cedce5af6 100644
--- a/drivers/net/axgbe/axgbe_ethdev.h
+++ b/drivers/net/axgbe/axgbe_ethdev.h
@@ -594,6 +594,7 @@ struct axgbe_port {
 uint32_t rss_table[AXGBE_RSS_MAX_TABLE_SIZE];
 uint32_t rss_options;
 int rss_enable;
+uint64_t rss_hf;

 /* Hardware features of the device */
 struct axgbe_hw_features hw_feat;
@@ -653,5 +654,7 @@ void axgbe_init_function_ptrs_i2c(struct axgbe_i2c_if *i2c_if);  void axgbe_set_mac_addn_addr(struct axgbe_port *pdata, u8 *addr,
      uint32_t index);
 void axgbe_set_mac_hash_table(struct axgbe_port *pdata, u8 *addr, bool add);
+int axgbe_write_rss_lookup_table(struct axgbe_port *pdata); int
+axgbe_write_rss_hash_key(struct axgbe_port *pdata);

 #endif /* RTE_ETH_AXGBE_H_ */
--
2.17.1

Re: [dpdk-dev] [PATCH v2] net/axgbe: add RSS reta/hash query and update

[Ferruh Yigit]

On 6/4/2020 6:27 AM, Somalapuram, Amaranath wrote:
> [AMD Official Use Only - Internal Distribution Only]

Is there a way to remove above header, public email list is definitely not
internal distribution.

> 
> For series,
> Acked-by: Somalapuram Amaranath <asomalap@amd.com>
> 

<...>

Re: [dpdk-dev] [PATCH v2] net/axgbe: add RSS reta/hash query and update

[Ferruh Yigit]

On 6/4/2020 6:27 AM, Somalapuram, Amaranath wrote:

<...>

> -----Original Message-----
> From: Namburu, Chandu-babu <chandu@amd.com>
> Sent: Friday, May 29, 2020 5:19 PM
> To: dev@dpdk.org
> Cc: Somalapuram, Amaranath <Amaranath.Somalapuram@amd.com>
> Subject: [PATCH v2] net/axgbe: add RSS reta/hash query and update
> 
> From: Chandu Babu N <chandu@amd.com>
> 
> add support for RSS reta/hash query and update function
> 
> v2:
> modification as per Andrew Rybchenko review comments
> 
> Signed-off-by: Chandu Babu N <chandu@amd.com>

Acked-by: Amaranath Somalapuram <asomalap@amd.com>

Applied to dpdk-next-net/master, thanks.