[v2] net/axgbe: add RSS reta/hash query and update
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Message ID 20200529113402.17119-1-chandu@amd.com
State Superseded
Headers show
Series
  • [v2] net/axgbe: add RSS reta/hash query and update
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Commit Message

Namburu, Chandu-babu May 29, 2020, 11:34 a.m. UTC
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(-)

Patch
diff mbox series

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_ */