[dpdk-dev] [PATCH v2 06/57] net/octeontx2: add info get operation

[<jerinj@marvell.com>]

From: Jerin Jacob <jerinj@marvell.com>

Add device information get operation.

Signed-off-by: Jerin Jacob <jerinj@marvell.com>
Signed-off-by: Vamsi Attunuru <vattunuru@marvell.com>
Signed-off-by: Harman Kalra <hkalra@marvell.com>
---
 doc/guides/nics/features/octeontx2.ini     |  4 ++
 doc/guides/nics/features/octeontx2_vec.ini |  4 ++
 doc/guides/nics/features/octeontx2_vf.ini  |  3 +
 doc/guides/nics/octeontx2.rst              |  2 +
 drivers/net/octeontx2/Makefile             |  1 +
 drivers/net/octeontx2/meson.build          |  1 +
 drivers/net/octeontx2/otx2_ethdev.c        |  7 +++
 drivers/net/octeontx2/otx2_ethdev.h        | 45 +++++++++++++++
 drivers/net/octeontx2/otx2_ethdev_ops.c    | 64 ++++++++++++++++++++++
 9 files changed, 131 insertions(+)
 create mode 100644 drivers/net/octeontx2/otx2_ethdev_ops.c

diff --git a/doc/guides/nics/features/octeontx2.ini b/doc/guides/nics/features/octeontx2.ini
index 84d5ad779..356b88de7 100644
--- a/doc/guides/nics/features/octeontx2.ini
+++ b/doc/guides/nics/features/octeontx2.ini
@@ -4,6 +4,10 @@
 ; Refer to default.ini for the full list of available PMD features.
 ;
 [Features]
+Speed capabilities   = Y
+Lock-free Tx queue   = Y
+SR-IOV               = Y
+Multiprocess aware   = Y
 Linux VFIO           = Y
 ARMv8                = Y
 Usage doc            = Y
diff --git a/doc/guides/nics/features/octeontx2_vec.ini b/doc/guides/nics/features/octeontx2_vec.ini
index 5fd7e4c5c..5f4eaa3f4 100644
--- a/doc/guides/nics/features/octeontx2_vec.ini
+++ b/doc/guides/nics/features/octeontx2_vec.ini
@@ -4,6 +4,10 @@
 ; Refer to default.ini for the full list of available PMD features.
 ;
 [Features]
+Speed capabilities   = Y
+Lock-free Tx queue   = Y
+SR-IOV               = Y
+Multiprocess aware   = Y
 Linux VFIO           = Y
 ARMv8                = Y
 Usage doc            = Y
diff --git a/doc/guides/nics/features/octeontx2_vf.ini b/doc/guides/nics/features/octeontx2_vf.ini
index 3128cc120..024b032d4 100644
--- a/doc/guides/nics/features/octeontx2_vf.ini
+++ b/doc/guides/nics/features/octeontx2_vf.ini
@@ -4,6 +4,9 @@
 ; Refer to default.ini for the full list of available PMD features.
 ;
 [Features]
+Speed capabilities   = Y
+Lock-free Tx queue   = Y
+Multiprocess aware   = Y
 Linux VFIO           = Y
 ARMv8                = Y
 Usage doc            = Y
diff --git a/doc/guides/nics/octeontx2.rst b/doc/guides/nics/octeontx2.rst
index 92a7ebc42..e3f4c2c43 100644
--- a/doc/guides/nics/octeontx2.rst
+++ b/doc/guides/nics/octeontx2.rst
@@ -16,6 +16,8 @@ Features
 
 Features of the OCTEON TX2 Ethdev PMD are:
 
+- SR-IOV VF
+- Lock-free Tx queue
 
 Prerequisites
 -------------
diff --git a/drivers/net/octeontx2/Makefile b/drivers/net/octeontx2/Makefile
index 54f8f268d..5083637e4 100644
--- a/drivers/net/octeontx2/Makefile
+++ b/drivers/net/octeontx2/Makefile
@@ -31,6 +31,7 @@ SRCS-$(CONFIG_RTE_LIBRTE_OCTEONTX2_PMD) += \
 	otx2_mac.c	\
 	otx2_ethdev.c	\
 	otx2_ethdev_irq.c \
+	otx2_ethdev_ops.c \
 	otx2_ethdev_devargs.c
 
 LDLIBS += -lrte_common_octeontx2 -lrte_mempool_octeontx2 -lrte_eal
diff --git a/drivers/net/octeontx2/meson.build b/drivers/net/octeontx2/meson.build
index 148f7d339..aa8417e3f 100644
--- a/drivers/net/octeontx2/meson.build
+++ b/drivers/net/octeontx2/meson.build
@@ -6,6 +6,7 @@ sources = files(
 		'otx2_mac.c',
 		'otx2_ethdev.c',
 		'otx2_ethdev_irq.c',
+		'otx2_ethdev_ops.c',
 		'otx2_ethdev_devargs.c'
 		)
 
diff --git a/drivers/net/octeontx2/otx2_ethdev.c b/drivers/net/octeontx2/otx2_ethdev.c
index 67a7ebb36..6e3c70559 100644
--- a/drivers/net/octeontx2/otx2_ethdev.c
+++ b/drivers/net/octeontx2/otx2_ethdev.c
@@ -64,6 +64,11 @@ nix_lf_free(struct otx2_eth_dev *dev)
 	return otx2_mbox_process(mbox);
 }
 
+/* Initialize and register driver with DPDK Application */
+static const struct eth_dev_ops otx2_eth_dev_ops = {
+	.dev_infos_get            = otx2_nix_info_get,
+};
+
 static inline int
 nix_lf_attach(struct otx2_eth_dev *dev)
 {
@@ -120,6 +125,8 @@ otx2_eth_dev_init(struct rte_eth_dev *eth_dev)
 	struct rte_pci_device *pci_dev;
 	int rc, max_entries;
 
+	eth_dev->dev_ops = &otx2_eth_dev_ops;
+
 	/* For secondary processes, the primary has done all the work */
 	if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
 		/* Setup callbacks for secondary process */
diff --git a/drivers/net/octeontx2/otx2_ethdev.h b/drivers/net/octeontx2/otx2_ethdev.h
index f7d8838df..666ceba91 100644
--- a/drivers/net/octeontx2/otx2_ethdev.h
+++ b/drivers/net/octeontx2/otx2_ethdev.h
@@ -33,9 +33,50 @@
 /* Used for struct otx2_eth_dev::flags */
 #define OTX2_LINK_CFG_IN_PROGRESS_F	BIT_ULL(0)
 
+/* VLAN tag inserted by NIX_TX_VTAG_ACTION.
+ * In Tx space is always reserved for this in FRS.
+ */
+#define NIX_MAX_VTAG_INS		2
+#define NIX_MAX_VTAG_ACT_SIZE		(4 * NIX_MAX_VTAG_INS)
+
+/* ETH_HLEN+ETH_FCS+2*VLAN_HLEN */
+#define NIX_L2_OVERHEAD \
+	(RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN + 8)
+
+/* HW config of frame size doesn't include FCS */
+#define NIX_MAX_HW_FRS			9212
+#define NIX_MIN_HW_FRS			60
+
+/* Since HW FRS includes NPC VTAG insertion space, user has reduced FRS */
+#define NIX_MAX_FRS	\
+	(NIX_MAX_HW_FRS + RTE_ETHER_CRC_LEN - NIX_MAX_VTAG_ACT_SIZE)
+
+#define NIX_MIN_FRS	\
+	(NIX_MIN_HW_FRS + RTE_ETHER_CRC_LEN)
+
+#define NIX_MAX_MTU	\
+	(NIX_MAX_FRS - NIX_L2_OVERHEAD)
+
 #define NIX_MAX_SQB			512
 #define NIX_MIN_SQB			32
+#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
+
+/* If PTP is enabled additional SEND MEM DESC is required which
+ * takes 2 words, hence max 7 iova address are possible
+ */
+#if defined(RTE_LIBRTE_IEEE1588)
+#define NIX_TX_NB_SEG_MAX		7
+#else
+#define NIX_TX_NB_SEG_MAX		9
+#endif
+
+#define NIX_RSS_OFFLOAD		(ETH_RSS_PORT | ETH_RSS_IP | ETH_RSS_UDP |\
+				 ETH_RSS_TCP | ETH_RSS_SCTP | \
+				 ETH_RSS_TUNNEL | ETH_RSS_L2_PAYLOAD)
 
 #define NIX_TX_OFFLOAD_CAPA ( \
 	DEV_TX_OFFLOAD_MBUF_FAST_FREE	| \
@@ -105,6 +146,10 @@ otx2_eth_pmd_priv(struct rte_eth_dev *eth_dev)
 	return eth_dev->data->dev_private;
 }
 
+/* Ops */
+void otx2_nix_info_get(struct rte_eth_dev *eth_dev,
+		       struct rte_eth_dev_info *dev_info);
+
 /* IRQ */
 int otx2_nix_register_irqs(struct rte_eth_dev *eth_dev);
 void otx2_nix_unregister_irqs(struct rte_eth_dev *eth_dev);
diff --git a/drivers/net/octeontx2/otx2_ethdev_ops.c b/drivers/net/octeontx2/otx2_ethdev_ops.c
new file mode 100644
index 000000000..df7e909d2
--- /dev/null
+++ b/drivers/net/octeontx2/otx2_ethdev_ops.c
@@ -0,0 +1,64 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2019 Marvell International Ltd.
+ */
+
+#include "otx2_ethdev.h"
+
+void
+otx2_nix_info_get(struct rte_eth_dev *eth_dev, struct rte_eth_dev_info *devinfo)
+{
+	struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
+	struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
+
+	devinfo->min_rx_bufsize = NIX_MIN_FRS;
+	devinfo->max_rx_pktlen = NIX_MAX_FRS;
+	devinfo->max_rx_queues = RTE_MAX_QUEUES_PER_PORT;
+	devinfo->max_tx_queues = RTE_MAX_QUEUES_PER_PORT;
+	devinfo->max_mac_addrs = dev->max_mac_entries;
+	devinfo->max_vfs = pci_dev->max_vfs;
+	devinfo->max_mtu = devinfo->max_rx_pktlen - NIX_L2_OVERHEAD;
+	devinfo->min_mtu = devinfo->min_rx_bufsize - NIX_L2_OVERHEAD;
+
+	devinfo->rx_offload_capa = dev->rx_offload_capa;
+	devinfo->tx_offload_capa = dev->tx_offload_capa;
+	devinfo->rx_queue_offload_capa = 0;
+	devinfo->tx_queue_offload_capa = 0;
+
+	devinfo->reta_size = dev->rss_info.rss_size;
+	devinfo->hash_key_size = NIX_HASH_KEY_SIZE;
+	devinfo->flow_type_rss_offloads = NIX_RSS_OFFLOAD;
+
+	devinfo->default_rxconf = (struct rte_eth_rxconf) {
+		.rx_drop_en = 0,
+		.offloads = 0,
+	};
+
+	devinfo->default_txconf = (struct rte_eth_txconf) {
+		.offloads = 0,
+	};
+
+	devinfo->rx_desc_lim = (struct rte_eth_desc_lim) {
+		.nb_max = UINT16_MAX,
+		.nb_min = NIX_RX_MIN_DESC,
+		.nb_align = NIX_RX_MIN_DESC_ALIGN,
+		.nb_seg_max = NIX_RX_NB_SEG_MAX,
+		.nb_mtu_seg_max = NIX_RX_NB_SEG_MAX,
+	};
+	devinfo->rx_desc_lim.nb_max =
+		RTE_ALIGN_MUL_FLOOR(devinfo->rx_desc_lim.nb_max,
+				    NIX_RX_MIN_DESC_ALIGN);
+
+	devinfo->tx_desc_lim = (struct rte_eth_desc_lim) {
+		.nb_max = UINT16_MAX,
+		.nb_min = 1,
+		.nb_align = 1,
+		.nb_seg_max = NIX_TX_NB_SEG_MAX,
+		.nb_mtu_seg_max = NIX_TX_NB_SEG_MAX,
+	};
+
+	/* Auto negotiation disabled */
+	devinfo->speed_capa = ETH_LINK_SPEED_FIXED;
+	devinfo->speed_capa |= ETH_LINK_SPEED_1G | ETH_LINK_SPEED_10G |
+				ETH_LINK_SPEED_25G | ETH_LINK_SPEED_40G |
+				ETH_LINK_SPEED_50G | ETH_LINK_SPEED_100G;
+}
-- 
2.21.0