[dpdk-dev] [PATCH v1 07/58] net/octeontx2: add device configure operation

[<jerinj@marvell.com>]

From: Jerin Jacob <jerinj@marvell.com>

Add device configure operation. This would call lf_alloc
mailbox to allocate a NIX LF and upon return, AF will
return the attributes for the select LF.

Signed-off-by: Jerin Jacob <jerinj@marvell.com>
Signed-off-by: Vamsi Attunuru <vattunuru@marvell.com>
Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
---
 drivers/net/octeontx2/otx2_ethdev.c | 151 ++++++++++++++++++++++++++++
 drivers/net/octeontx2/otx2_ethdev.h |  11 ++
 2 files changed, 162 insertions(+)

diff --git a/drivers/net/octeontx2/otx2_ethdev.c b/drivers/net/octeontx2/otx2_ethdev.c
index 6e3c70559..65d72a47f 100644
--- a/drivers/net/octeontx2/otx2_ethdev.c
+++ b/drivers/net/octeontx2/otx2_ethdev.c
@@ -39,6 +39,52 @@ nix_get_tx_offload_capa(struct otx2_eth_dev *dev)
 	return NIX_TX_OFFLOAD_CAPA;
 }
 
+static int
+nix_lf_alloc(struct otx2_eth_dev *dev, uint32_t nb_rxq, uint32_t nb_txq)
+{
+	struct otx2_mbox *mbox = dev->mbox;
+	struct nix_lf_alloc_req *req;
+	struct nix_lf_alloc_rsp *rsp;
+	int rc;
+
+	req = otx2_mbox_alloc_msg_nix_lf_alloc(mbox);
+	req->rq_cnt = nb_rxq;
+	req->sq_cnt = nb_txq;
+	req->cq_cnt = nb_rxq;
+	/* XQE_SZ should be in Sync with NIX_CQ_ENTRY_SZ */
+	RTE_BUILD_BUG_ON(NIX_CQ_ENTRY_SZ != 128);
+	req->xqe_sz = NIX_XQESZ_W16;
+	req->rss_sz = dev->rss_info.rss_size;
+	req->rss_grps = NIX_RSS_GRPS;
+	req->npa_func = otx2_npa_pf_func_get();
+	req->sso_func = otx2_sso_pf_func_get();
+	req->rx_cfg = BIT_ULL(35 /* DIS_APAD */);
+	if (dev->rx_offloads & (DEV_RX_OFFLOAD_TCP_CKSUM |
+			 DEV_RX_OFFLOAD_UDP_CKSUM)) {
+		req->rx_cfg |= BIT_ULL(37 /* CSUM_OL4 */);
+		req->rx_cfg |= BIT_ULL(36 /* CSUM_IL4 */);
+	}
+
+	rc = otx2_mbox_process_msg(mbox, (void *)&rsp);
+	if (rc)
+		return rc;
+
+	dev->sqb_size = rsp->sqb_size;
+	dev->tx_chan_base = rsp->tx_chan_base;
+	dev->rx_chan_base = rsp->rx_chan_base;
+	dev->rx_chan_cnt = rsp->rx_chan_cnt;
+	dev->tx_chan_cnt = rsp->tx_chan_cnt;
+	dev->lso_tsov4_idx = rsp->lso_tsov4_idx;
+	dev->lso_tsov6_idx = rsp->lso_tsov6_idx;
+	dev->lf_tx_stats = rsp->lf_tx_stats;
+	dev->lf_rx_stats = rsp->lf_rx_stats;
+	dev->cints = rsp->cints;
+	dev->qints = rsp->qints;
+	dev->npc_flow.channel = dev->rx_chan_base;
+
+	return 0;
+}
+
 static int
 nix_lf_free(struct otx2_eth_dev *dev)
 {
@@ -64,9 +110,114 @@ nix_lf_free(struct otx2_eth_dev *dev)
 	return otx2_mbox_process(mbox);
 }
 
+static int
+otx2_nix_configure(struct rte_eth_dev *eth_dev)
+{
+	struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
+	struct rte_eth_dev_data *data = eth_dev->data;
+	struct rte_eth_conf *conf = &data->dev_conf;
+	struct rte_eth_rxmode *rxmode = &conf->rxmode;
+	struct rte_eth_txmode *txmode = &conf->txmode;
+	char ea_fmt[RTE_ETHER_ADDR_FMT_SIZE];
+	struct rte_ether_addr *ea;
+	uint8_t nb_rxq, nb_txq;
+	int rc;
+
+	rc = -EINVAL;
+
+	/* Sanity checks */
+	if (rte_eal_has_hugepages() == 0) {
+		otx2_err("Huge page is not configured");
+		goto fail;
+	}
+
+	if (rte_eal_iova_mode() != RTE_IOVA_VA) {
+		otx2_err("iova mode should be va");
+		goto fail;
+	}
+
+	if (conf->link_speeds & ETH_LINK_SPEED_FIXED) {
+		otx2_err("Setting link speed/duplex not supported");
+		goto fail;
+	}
+
+	if (conf->dcb_capability_en == 1) {
+		otx2_err("dcb enable is not supported");
+		goto fail;
+	}
+
+	if (conf->fdir_conf.mode != RTE_FDIR_MODE_NONE) {
+		otx2_err("Flow director is not supported");
+		goto fail;
+	}
+
+	if (rxmode->mq_mode != ETH_MQ_RX_NONE &&
+	    rxmode->mq_mode != ETH_MQ_RX_RSS) {
+		otx2_err("Unsupported mq rx mode %d", rxmode->mq_mode);
+		goto fail;
+	}
+
+	if (txmode->mq_mode != ETH_MQ_TX_NONE) {
+		otx2_err("Unsupported mq tx mode %d", txmode->mq_mode);
+		goto fail;
+	}
+
+	/* Free the resources allocated from the previous configure */
+	if (dev->configured == 1)
+		nix_lf_free(dev);
+
+	if (otx2_dev_is_A0(dev) &&
+	    (txmode->offloads & DEV_TX_OFFLOAD_SCTP_CKSUM) &&
+	    ((txmode->offloads & DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM) ||
+	    (txmode->offloads & DEV_TX_OFFLOAD_OUTER_UDP_CKSUM))) {
+		otx2_err("Outer IP and SCTP checksum unsupported");
+		rc = -EINVAL;
+		goto fail;
+	}
+
+	dev->rx_offloads = rxmode->offloads;
+	dev->tx_offloads = txmode->offloads;
+	dev->rss_info.rss_grps = NIX_RSS_GRPS;
+
+	nb_rxq = RTE_MAX(data->nb_rx_queues, 1);
+	nb_txq = RTE_MAX(data->nb_tx_queues, 1);
+
+	/* Alloc a nix lf */
+	rc = nix_lf_alloc(dev, nb_rxq, nb_txq);
+	if (rc) {
+		otx2_err("Failed to init nix_lf rc=%d", rc);
+		goto fail;
+	}
+
+	/* Update the mac address */
+	ea = eth_dev->data->mac_addrs;
+	memcpy(ea, dev->mac_addr, RTE_ETHER_ADDR_LEN);
+	if (rte_is_zero_ether_addr(ea))
+		rte_eth_random_addr((uint8_t *)ea);
+
+	rte_ether_format_addr(ea_fmt, RTE_ETHER_ADDR_FMT_SIZE, ea);
+
+	otx2_nix_dbg("Configured port%d mac=%s nb_rxq=%d nb_txq=%d"
+		" rx_offloads=0x%" PRIx64 " tx_offloads=0x%" PRIx64 ""
+		" rx_flags=0x%x tx_flags=0x%x",
+		eth_dev->data->port_id, ea_fmt, nb_rxq,
+		nb_txq, dev->rx_offloads, dev->tx_offloads,
+		dev->rx_offload_flags, dev->tx_offload_flags);
+
+	/* All good */
+	dev->configured = 1;
+	dev->configured_nb_rx_qs = data->nb_rx_queues;
+	dev->configured_nb_tx_qs = data->nb_tx_queues;
+	return 0;
+
+fail:
+	return rc;
+}
+
 /* Initialize and register driver with DPDK Application */
 static const struct eth_dev_ops otx2_eth_dev_ops = {
 	.dev_infos_get            = otx2_nix_info_get,
+	.dev_configure            = otx2_nix_configure,
 };
 
 static inline int
diff --git a/drivers/net/octeontx2/otx2_ethdev.h b/drivers/net/octeontx2/otx2_ethdev.h
index 00baabaac..27cad971c 100644
--- a/drivers/net/octeontx2/otx2_ethdev.h
+++ b/drivers/net/octeontx2/otx2_ethdev.h
@@ -39,11 +39,14 @@
 #define NIX_MAX_HW_MTU			9190
 #define NIX_MAX_HW_FRS			(NIX_MAX_HW_MTU + NIX_HW_L2_OVERHEAD)
 #define NIX_MIN_HW_FRS			60
+/* Group 0 will be used for RSS, 1 -7 will be used for rte_flow RSS action*/
+#define NIX_RSS_GRPS			8
 #define NIX_HASH_KEY_SIZE		48 /* 352 Bits */
 #define NIX_RSS_RETA_SIZE		64
 #define	NIX_RX_MIN_DESC			16
 #define NIX_RX_MIN_DESC_ALIGN		16
 #define NIX_RX_NB_SEG_MAX		6
+#define NIX_CQ_ENTRY_SZ			128
 
 /* If PTP is enabled additional SEND MEM DESC is required which
  * takes 2 words, hence max 7 iova address are possible
@@ -85,9 +88,11 @@
 
 struct otx2_rss_info {
 	uint16_t rss_size;
+	uint8_t rss_grps;
 };
 
 struct otx2_npc_flow_info {
+	uint16_t channel; /*rx channel */
 	uint16_t flow_prealloc_size;
 	uint16_t flow_max_priority;
 };
@@ -104,7 +109,13 @@ struct otx2_eth_dev {
 	uint8_t lso_tsov6_idx;
 	uint8_t mac_addr[RTE_ETHER_ADDR_LEN];
 	uint8_t max_mac_entries;
+	uint8_t lf_tx_stats;
+	uint8_t lf_rx_stats;
+	uint16_t cints;
+	uint16_t qints;
 	uint8_t configured;
+	uint8_t configured_nb_rx_qs;
+	uint8_t configured_nb_tx_qs;
 	uint16_t nix_msixoff;
 	uintptr_t base;
 	uintptr_t lmt_addr;
-- 
2.21.0