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From: Alfredo Cardigliano <cardigliano@ntop.org>
To: dev@dpdk.org
Subject: [dpdk-dev] [PATCH 13/17] net/ionic: add RSS support
Date: Sat, 12 Oct 2019 02:27:32 +0200
Message-ID: <157084005241.11524.11028568358016352728.stgit@devele> (raw)
In-Reply-To: <157083994018.11524.11276616720287263690.stgit@devele>

Add code to manipulate the RSS configuration
used by the adapter.

Signed-off-by: Alfredo Cardigliano <cardigliano@ntop.org>
Reviewed-by: Shannon Nelson <snelson@pensando.io>
---
 doc/guides/nics/features/ionic.ini |    3 +
 drivers/net/ionic/ionic_ethdev.c   |  175 ++++++++++++++++++++++++++++++++++++
 drivers/net/ionic/ionic_ethdev.h   |    8 ++
 drivers/net/ionic/ionic_lif.c      |  120 +++++++++++++++++++++++++
 drivers/net/ionic/ionic_lif.h      |   18 ++++
 5 files changed, 324 insertions(+)

diff --git a/doc/guides/nics/features/ionic.ini b/doc/guides/nics/features/ionic.ini
index 05bdb2d98..b3f6c3497 100644
--- a/doc/guides/nics/features/ionic.ini
+++ b/doc/guides/nics/features/ionic.ini
@@ -11,6 +11,9 @@ MTU update           = Y
 Promiscuous mode     = Y
 Allmulticast mode    = Y
 Unicast MAC filter   = Y
+RSS hash             = Y
+RSS key update       = Y
+RSS reta update      = Y
 VLAN filter          = Y
 Flow control         = Y
 Linux UIO            = Y
diff --git a/drivers/net/ionic/ionic_ethdev.c b/drivers/net/ionic/ionic_ethdev.c
index 46cdee7be..196113089 100644
--- a/drivers/net/ionic/ionic_ethdev.c
+++ b/drivers/net/ionic/ionic_ethdev.c
@@ -33,6 +33,14 @@ static int  ionic_flow_ctrl_get(struct rte_eth_dev *eth_dev,
 		struct rte_eth_fc_conf *fc_conf);
 static int  ionic_flow_ctrl_set(struct rte_eth_dev *eth_dev,
 		struct rte_eth_fc_conf *fc_conf);
+static int  ionic_dev_rss_reta_update(struct rte_eth_dev *eth_dev,
+		struct rte_eth_rss_reta_entry64 *reta_conf, uint16_t reta_size);
+static int  ionic_dev_rss_reta_query(struct rte_eth_dev *eth_dev,
+		struct rte_eth_rss_reta_entry64 *reta_conf, uint16_t reta_size);
+static int  ionic_dev_rss_hash_conf_get(struct rte_eth_dev *eth_dev,
+		struct rte_eth_rss_conf *rss_conf);
+static int  ionic_dev_rss_hash_update(struct rte_eth_dev *eth_dev,
+		struct rte_eth_rss_conf *rss_conf);
 
 int ionic_logtype_init;
 int ionic_logtype_driver;
@@ -64,6 +72,10 @@ static const struct eth_dev_ops ionic_eth_dev_ops = {
 	.allmulticast_disable   = ionic_dev_allmulticast_disable,
 	.flow_ctrl_get          = ionic_flow_ctrl_get,
 	.flow_ctrl_set          = ionic_flow_ctrl_set,
+	.reta_update            = ionic_dev_rss_reta_update,
+	.reta_query             = ionic_dev_rss_reta_query,
+	.rss_hash_conf_get      = ionic_dev_rss_hash_conf_get,
+	.rss_hash_update        = ionic_dev_rss_hash_update,
 };
 
 /*
@@ -243,6 +255,10 @@ ionic_dev_info_get(struct rte_eth_dev *eth_dev,
 	dev_info->max_rx_pktlen = IONIC_MAX_MTU + RTE_ETHER_HDR_LEN;
 	dev_info->max_mac_addrs = adapter->max_mac_addrs;
 
+	dev_info->hash_key_size = IONIC_RSS_HASH_KEY_SIZE;
+	dev_info->reta_size = ident->lif.eth.rss_ind_tbl_sz;
+	dev_info->flow_type_rss_offloads = IONIC_ETH_RSS_OFFLOAD_ALL;
+
 	dev_info->speed_capa =
 		ETH_LINK_SPEED_10G |
 		ETH_LINK_SPEED_25G |
@@ -303,6 +319,165 @@ ionic_flow_ctrl_set(struct rte_eth_dev *eth_dev,
 	return 0;
 }
 
+static int
+ionic_dev_rss_reta_update(struct rte_eth_dev *eth_dev,
+		struct rte_eth_rss_reta_entry64 *reta_conf,
+		uint16_t reta_size)
+{
+	struct ionic_lif *lif = IONIC_ETH_DEV_TO_LIF(eth_dev);
+	struct ionic_adapter *adapter = lif->adapter;
+	struct ionic_identity *ident = &adapter->ident;
+	uint32_t i, j, index, num;
+
+	ionic_init_print_call();
+
+	if (!lif->rss_ind_tbl) {
+		ionic_drv_print(ERR, "RSS RETA not initialized, "
+				"can't update the table");
+		return -EINVAL;
+	}
+
+	if (reta_size != ident->lif.eth.rss_ind_tbl_sz) {
+		ionic_drv_print(ERR, "The size of hash lookup table configured "
+			"(%d) doesn't match the number hardware can supported "
+			"(%d)",
+			reta_size, ident->lif.eth.rss_ind_tbl_sz);
+		return -EINVAL;
+	}
+
+	num = lif->adapter->ident.lif.eth.rss_ind_tbl_sz / RTE_RETA_GROUP_SIZE;
+
+	for (i = 0; i < num; i++) {
+		for (j = 0; j < RTE_RETA_GROUP_SIZE; j++) {
+			if (reta_conf[i].mask & ((uint64_t)1 << j)) {
+				index = (i * RTE_RETA_GROUP_SIZE) + j;
+				lif->rss_ind_tbl[index] = reta_conf[i].reta[j];
+			}
+		}
+	}
+
+	return ionic_lif_rss_config(lif, lif->rss_types, NULL, NULL);
+}
+
+static int
+ionic_dev_rss_reta_query(struct rte_eth_dev *eth_dev,
+		struct rte_eth_rss_reta_entry64 *reta_conf,
+		uint16_t reta_size)
+{
+	struct ionic_lif *lif = IONIC_ETH_DEV_TO_LIF(eth_dev);
+	struct ionic_adapter *adapter = lif->adapter;
+	struct ionic_identity *ident = &adapter->ident;
+	int i, num;
+
+	ionic_init_print_call();
+
+	if (reta_size != ident->lif.eth.rss_ind_tbl_sz) {
+		ionic_drv_print(ERR, "The size of hash lookup table configured "
+			"(%d) doesn't match the number hardware can supported "
+			"(%d)",
+			reta_size, ident->lif.eth.rss_ind_tbl_sz);
+		return -EINVAL;
+	}
+
+	if (!lif->rss_ind_tbl) {
+		ionic_drv_print(ERR, "RSS RETA has not been built yet");
+		return -EINVAL;
+	}
+
+	num = reta_size / RTE_RETA_GROUP_SIZE;
+
+	for (i = 0; i < num; i++) {
+		memcpy(reta_conf->reta,
+			&lif->rss_ind_tbl[i * RTE_RETA_GROUP_SIZE],
+			RTE_RETA_GROUP_SIZE);
+		reta_conf++;
+	}
+
+	return 0;
+}
+
+static int
+ionic_dev_rss_hash_conf_get(struct rte_eth_dev *eth_dev,
+		struct rte_eth_rss_conf *rss_conf)
+{
+	struct ionic_lif *lif = IONIC_ETH_DEV_TO_LIF(eth_dev);
+	uint64_t rss_hf = 0;
+
+	ionic_init_print_call();
+
+	if (!lif->rss_ind_tbl) {
+		ionic_drv_print(NOTICE, "RSS not enabled");
+		return 0;
+	}
+
+	/* Get key value (if not null, rss_key is 40-byte) */
+	if (rss_conf->rss_key != NULL &&
+			rss_conf->rss_key_len >= IONIC_RSS_HASH_KEY_SIZE)
+		memcpy(rss_conf->rss_key, lif->rss_hash_key,
+				IONIC_RSS_HASH_KEY_SIZE);
+
+	if (lif->rss_types & IONIC_RSS_TYPE_IPV4)
+		rss_hf |= ETH_RSS_IPV4;
+	if (lif->rss_types & IONIC_RSS_TYPE_IPV4_TCP)
+		rss_hf |= ETH_RSS_NONFRAG_IPV4_TCP;
+	if (lif->rss_types & IONIC_RSS_TYPE_IPV4_UDP)
+		rss_hf |= ETH_RSS_NONFRAG_IPV4_UDP;
+	if (lif->rss_types & IONIC_RSS_TYPE_IPV6)
+		rss_hf |= ETH_RSS_IPV6;
+	if (lif->rss_types & IONIC_RSS_TYPE_IPV6_TCP)
+		rss_hf |= ETH_RSS_NONFRAG_IPV6_TCP;
+	if (lif->rss_types & IONIC_RSS_TYPE_IPV6_UDP)
+		rss_hf |= ETH_RSS_NONFRAG_IPV6_UDP;
+
+	rss_conf->rss_hf = rss_hf;
+
+	return 0;
+}
+
+static int
+ionic_dev_rss_hash_update(struct rte_eth_dev *eth_dev,
+		struct rte_eth_rss_conf *rss_conf)
+{
+	struct ionic_lif *lif = IONIC_ETH_DEV_TO_LIF(eth_dev);
+	uint32_t rss_types = 0;
+	uint8_t *key = NULL;
+
+	ionic_init_print_call();
+
+	if (rss_conf->rss_key)
+		key = rss_conf->rss_key;
+
+	if ((rss_conf->rss_hf & IONIC_ETH_RSS_OFFLOAD_ALL) == 0) {
+		/*
+		 * Can't disable rss through hash flags,
+		 * if it is enabled by default during init
+		 */
+		if (lif->rss_ind_tbl)
+			return -EINVAL;
+	} else {
+		/* Can't enable rss if disabled by default during init */
+		if (!lif->rss_ind_tbl)
+			return -EINVAL;
+
+		if (rss_conf->rss_hf & ETH_RSS_IPV4)
+			rss_types |= IONIC_RSS_TYPE_IPV4;
+		if (rss_conf->rss_hf & ETH_RSS_NONFRAG_IPV4_TCP)
+			rss_types |= IONIC_RSS_TYPE_IPV4_TCP;
+		if (rss_conf->rss_hf & ETH_RSS_NONFRAG_IPV4_UDP)
+			rss_types |= IONIC_RSS_TYPE_IPV4_UDP;
+		if (rss_conf->rss_hf & ETH_RSS_IPV6)
+			rss_types |= IONIC_RSS_TYPE_IPV6;
+		if (rss_conf->rss_hf & ETH_RSS_NONFRAG_IPV6_TCP)
+			rss_types |= IONIC_RSS_TYPE_IPV6_TCP;
+		if (rss_conf->rss_hf & ETH_RSS_NONFRAG_IPV6_UDP)
+			rss_types |= IONIC_RSS_TYPE_IPV6_UDP;
+
+		ionic_lif_rss_config(lif, rss_types, key, NULL);
+	}
+
+	return 0;
+}
+
 static int
 ionic_dev_configure(struct rte_eth_dev *eth_dev)
 {
diff --git a/drivers/net/ionic/ionic_ethdev.h b/drivers/net/ionic/ionic_ethdev.h
index 9f1c0320d..914e36dfb 100644
--- a/drivers/net/ionic/ionic_ethdev.h
+++ b/drivers/net/ionic/ionic_ethdev.h
@@ -5,6 +5,14 @@
 #ifndef _IONIC_ETHDEV_H_
 #define _IONIC_ETHDEV_H_
 
+#define IONIC_ETH_RSS_OFFLOAD_ALL ( \
+	ETH_RSS_IPV4 | \
+	ETH_RSS_NONFRAG_IPV4_TCP | \
+	ETH_RSS_NONFRAG_IPV4_UDP | \
+	ETH_RSS_IPV6 | \
+	ETH_RSS_NONFRAG_IPV6_TCP | \
+	ETH_RSS_NONFRAG_IPV6_UDP)
+
 #define IONIC_ETH_DEV_TO_LIF(eth_dev) ((struct ionic_lif *) \
 		eth_dev->data->dev_private)
 #define IONIC_ETH_DEV_TO_ADAPTER(eth_dev) \
diff --git a/drivers/net/ionic/ionic_lif.c b/drivers/net/ionic/ionic_lif.c
index 0ab0f9e5e..045994787 100644
--- a/drivers/net/ionic/ionic_lif.c
+++ b/drivers/net/ionic/ionic_lif.c
@@ -714,6 +714,97 @@ ionic_lif_free(struct ionic_lif *lif)
 		rte_memzone_free(lif->info_z);
 }
 
+int
+ionic_lif_rss_config(struct ionic_lif *lif,
+		const uint16_t types, const uint8_t *key, const uint32_t *indir)
+{
+	struct ionic_admin_ctx ctx = {
+		.pending_work = true,
+		.cmd.lif_setattr = {
+			.opcode = IONIC_CMD_LIF_SETATTR,
+			.attr = IONIC_LIF_ATTR_RSS,
+			.rss.types = types,
+			.rss.addr = lif->rss_ind_tbl_pa,
+		},
+	};
+	unsigned int i;
+
+	ionic_init_print_call();
+
+	lif->rss_types = types;
+
+	if (key)
+		memcpy(lif->rss_hash_key, key, IONIC_RSS_HASH_KEY_SIZE);
+
+	if (indir)
+		for (i = 0; i < lif->adapter->ident.lif.eth.rss_ind_tbl_sz; i++)
+			lif->rss_ind_tbl[i] = indir[i];
+
+	memcpy(ctx.cmd.lif_setattr.rss.key, lif->rss_hash_key,
+	       IONIC_RSS_HASH_KEY_SIZE);
+
+	return ionic_adminq_post_wait(lif, &ctx);
+}
+
+static int
+ionic_lif_rss_setup(struct ionic_lif *lif)
+{
+	size_t tbl_size = sizeof(*lif->rss_ind_tbl) *
+			lif->adapter->ident.lif.eth.rss_ind_tbl_sz;
+	static const uint8_t toeplitz_symmetric_key[] = {
+		0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A,
+		0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A,
+		0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A,
+		0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A,
+		0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A, 0x6D, 0x5A,
+	};
+	uint32_t socket_id = rte_socket_id();
+	uint32_t i;
+	int err;
+
+	ionic_init_print_call();
+
+	lif->rss_ind_tbl_z = rte_eth_dma_zone_reserve(lif->eth_dev,
+			"rss_ind_tbl",
+			0 /* queue_idx*/, tbl_size, IONIC_ALIGN, socket_id);
+
+	if (!lif->rss_ind_tbl_z) {
+		ionic_init_print(ERR, "OOM");
+		return -ENOMEM;
+	}
+
+	lif->rss_ind_tbl = lif->rss_ind_tbl_z->addr;
+	lif->rss_ind_tbl_pa = lif->rss_ind_tbl_z->iova;
+
+	/* Fill indirection table with 'default' values */
+	for (i = 0; i < lif->adapter->ident.lif.eth.rss_ind_tbl_sz; i++)
+		lif->rss_ind_tbl[i] = i % lif->nrxqcqs;
+
+	err = ionic_lif_rss_config(lif, IONIC_RSS_OFFLOAD_ALL,
+			toeplitz_symmetric_key, NULL);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+static void
+ionic_lif_rss_teardown(struct ionic_lif *lif)
+{
+	if (!lif->rss_ind_tbl)
+		return;
+
+	if (lif->rss_ind_tbl_z) {
+		/* Disable RSS on the NIC */
+		ionic_lif_rss_config(lif, 0x0, NULL, NULL);
+
+		lif->rss_ind_tbl = NULL;
+		lif->rss_ind_tbl_pa = 0;
+		rte_memzone_free(lif->rss_ind_tbl_z);
+		lif->rss_ind_tbl_z = NULL;
+	}
+}
+
 static void
 ionic_lif_qcq_deinit(struct ionic_lif *lif, struct ionic_qcq *qcq)
 {
@@ -1120,6 +1211,7 @@ ionic_lif_deinit(struct ionic_lif *lif)
 		return;
 
 	ionic_rx_filters_deinit(lif);
+	ionic_lif_rss_teardown(lif);
 	ionic_lif_qcq_deinit(lif, lif->notifyqcq);
 	ionic_lif_qcq_deinit(lif, lif->adminqcq);
 
@@ -1129,8 +1221,28 @@ ionic_lif_deinit(struct ionic_lif *lif)
 int
 ionic_lif_configure(struct ionic_lif *lif)
 {
+	struct ionic_identity *ident = &lif->adapter->ident;
+	uint32_t ntxqs_per_lif =
+			ident->lif.eth.config.queue_count[IONIC_QTYPE_TXQ];
+	uint32_t nrxqs_per_lif =
+			ident->lif.eth.config.queue_count[IONIC_QTYPE_RXQ];
+	uint32_t nrxqs = lif->eth_dev->data->nb_rx_queues;
+	uint32_t ntxqs = lif->eth_dev->data->nb_tx_queues;
+
 	lif->port_id = lif->eth_dev->data->port_id;
 
+	ionic_init_print(DEBUG, "Configuring LIF on port %u",
+		lif->port_id);
+
+	if (nrxqs > 0)
+		nrxqs_per_lif = RTE_MIN(nrxqs_per_lif, nrxqs);
+
+	if (ntxqs > 0)
+		ntxqs_per_lif = RTE_MIN(ntxqs_per_lif, ntxqs);
+
+	lif->nrxqcqs = nrxqs_per_lif;
+	lif->ntxqcqs = ntxqs_per_lif;
+
 	return 0;
 }
 
@@ -1138,6 +1250,14 @@ int
 ionic_lif_start(struct ionic_lif *lif)
 {
 	uint32_t rx_mode = 0;
+	int err;
+
+	ionic_init_print(DEBUG, "Setting RSS configuration on port %u",
+		lif->port_id);
+
+	err = ionic_lif_rss_setup(lif);
+	if (err)
+		return err;
 
 	ionic_init_print(DEBUG, "Setting RX mode on port %u",
 		lif->port_id);
diff --git a/drivers/net/ionic/ionic_lif.h b/drivers/net/ionic/ionic_lif.h
index e192186a6..faf2f6294 100644
--- a/drivers/net/ionic/ionic_lif.h
+++ b/drivers/net/ionic/ionic_lif.h
@@ -17,6 +17,14 @@
 #define IONIC_ADMINQ_LENGTH	16	/* must be a power of two */
 #define IONIC_NOTIFYQ_LENGTH	64	/* must be a power of two */
 
+#define IONIC_RSS_OFFLOAD_ALL ( \
+	IONIC_RSS_TYPE_IPV4 | \
+	IONIC_RSS_TYPE_IPV4_TCP | \
+	IONIC_RSS_TYPE_IPV4_UDP | \
+	IONIC_RSS_TYPE_IPV6 | \
+	IONIC_RSS_TYPE_IPV6_TCP | \
+	IONIC_RSS_TYPE_IPV6_UDP)
+
 #define IONIC_QCQ_F_INITED	BIT(0)
 #define IONIC_QCQ_F_SG		BIT(1)
 #define IONIC_QCQ_F_INTR	BIT(2)
@@ -49,6 +57,8 @@ struct ionic_lif {
 	uint32_t index;
 	uint32_t hw_index;
 	uint32_t state;
+	uint32_t ntxqcqs;
+	uint32_t nrxqcqs;
 	uint32_t kern_pid;
 	rte_spinlock_t adminq_lock;
 	rte_spinlock_t adminq_service_lock;
@@ -62,6 +72,11 @@ struct ionic_lif {
 	uint32_t rx_mode;
 	char name[IONIC_LIF_NAME_MAX_SZ];
 	uint8_t mac_addr[ETH_ALEN];
+	uint16_t rss_types;
+	uint8_t rss_hash_key[IONIC_RSS_HASH_KEY_SIZE];
+	uint8_t *rss_ind_tbl;
+	rte_iova_t rss_ind_tbl_pa;
+	const struct rte_memzone *rss_ind_tbl_z;
 	uint32_t info_sz;
 	struct ionic_lif_info *info;
 	rte_iova_t info_pa;
@@ -112,6 +127,9 @@ void ionic_qcq_free(struct ionic_qcq *qcq);
 int ionic_qcq_enable(struct ionic_qcq *qcq);
 int ionic_qcq_disable(struct ionic_qcq *qcq);
 
+int ionic_lif_rss_config(struct ionic_lif *lif, const uint16_t types,
+		const uint8_t *key, const uint32_t *indir);
+
 int ionic_lif_set_features(struct ionic_lif *lif);
 
 int ionic_notifyq_handler(struct ionic_lif *lif, int budget);


  parent reply index

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-12  0:26 [dpdk-dev] [PATCH 00/17] Series short description Alfredo Cardigliano
2019-10-12  0:26 ` [dpdk-dev] [PATCH 01/17] net/ionic: add skeleton Alfredo Cardigliano
2019-10-12  0:26 ` [dpdk-dev] [PATCH 02/17] net/ionic: add hardware structures definitions Alfredo Cardigliano
2019-10-12  0:26 ` [dpdk-dev] [PATCH 03/17] net/ionic: add log Alfredo Cardigliano
2019-10-12 15:23   ` Stephen Hemminger
2019-10-12  0:26 ` [dpdk-dev] [PATCH 04/17] net/ionic: register and initialize the adapter Alfredo Cardigliano
2019-10-12  0:26 ` [dpdk-dev] [PATCH 05/17] net/ionic: add port management commands Alfredo Cardigliano
2019-10-12  0:26 ` [dpdk-dev] [PATCH 06/17] net/ionic: add basic lif support Alfredo Cardigliano
2019-10-12 15:26   ` Stephen Hemminger
2019-10-12  0:27 ` [dpdk-dev] [PATCH 07/17] net/ionic: add doorbells Alfredo Cardigliano
2019-10-12  0:27 ` [dpdk-dev] [PATCH 08/17] net/ionic: add adminq support Alfredo Cardigliano
2019-10-12  0:27 ` [dpdk-dev] [PATCH 09/17] net/ionic: add notifyq support Alfredo Cardigliano
2019-10-12  0:27 ` [dpdk-dev] [PATCH 10/17] net/ionic: add basic port operations Alfredo Cardigliano
2019-10-12  0:27 ` [dpdk-dev] [PATCH 11/17] net/ionic: add RX filters support Alfredo Cardigliano
2019-10-12  0:27 ` [dpdk-dev] [PATCH 12/17] net/ionic: net-ionic-add-flow-control-support Alfredo Cardigliano
2019-10-12  0:27 ` Alfredo Cardigliano [this message]
2019-10-12  0:27 ` [dpdk-dev] [PATCH 14/17] net/ionic: add RX and TX handling Alfredo Cardigliano
2019-10-12  0:27 ` [dpdk-dev] [PATCH 15/17] net/ionic: add stats Alfredo Cardigliano
2019-10-12  0:27 ` [dpdk-dev] [PATCH 16/17] net/ionic: add TX checksum support Alfredo Cardigliano
2019-10-12  0:27 ` [dpdk-dev] [PATCH 17/17] net/ionic: read fw version Alfredo Cardigliano
2019-10-12 15:28 ` [dpdk-dev] [PATCH 00/17] Series short description Stephen Hemminger
2019-10-14  7:16   ` Alfredo Cardigliano
2019-10-14  7:56     ` Andrew Rybchenko

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		dev@dpdk.org
	public-inbox-index dpdk-dev

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.dpdk.dev


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git