[dpdk-dev] [PATCH v6 08/22] net/atlantic: implement core logic for Tx/Rx

[Igor Russkikh <Igor.Russkikh@aquantia.com>]

From: Pavel Belous <Pavel.Belous@aquantia.com>

Add RX/TX function prototypes for further datapath development.

Signed-off-by: Igor Russkikh <igor.russkikh@aquantia.com>
Signed-off-by: Pavel Belous <pavel.belous@aquantia.com>
---
 doc/guides/nics/features/atlantic.ini |  1 +
 drivers/net/atlantic/Makefile         |  1 +
 drivers/net/atlantic/atl_ethdev.c     | 14 ++++++++++++
 drivers/net/atlantic/atl_ethdev.h     | 15 +++++++++++++
 drivers/net/atlantic/atl_rxtx.c       | 42 +++++++++++++++++++++++++++++++++++
 drivers/net/atlantic/meson.build      |  1 +
 6 files changed, 74 insertions(+)
 create mode 100644 drivers/net/atlantic/atl_rxtx.c

diff --git a/doc/guides/nics/features/atlantic.ini b/doc/guides/nics/features/atlantic.ini
index 1b9cbf95077f..c603b7bfcd42 100644
--- a/doc/guides/nics/features/atlantic.ini
+++ b/doc/guides/nics/features/atlantic.ini
@@ -4,6 +4,7 @@
 ; Refer to default.ini for the full list of available PMD features.
 ;
 [Features]
+Queue start/stop     = Y
 FW version           = Y
 Linux UIO            = Y
 ARMv8                = Y
diff --git a/drivers/net/atlantic/Makefile b/drivers/net/atlantic/Makefile
index 91306d71ba97..b88da362146d 100644
--- a/drivers/net/atlantic/Makefile
+++ b/drivers/net/atlantic/Makefile
@@ -24,6 +24,7 @@ VPATH += $(SRCDIR)/hw_atl
 #
 # all source are stored in SRCS-y
 #
+SRCS-$(CONFIG_RTE_LIBRTE_ATLANTIC_PMD) += atl_rxtx.c
 SRCS-$(CONFIG_RTE_LIBRTE_ATLANTIC_PMD) += atl_ethdev.c
 SRCS-$(CONFIG_RTE_LIBRTE_ATLANTIC_PMD) += atl_hw_regs.c
 SRCS-$(CONFIG_RTE_LIBRTE_ATLANTIC_PMD) += hw_atl_utils.c
diff --git a/drivers/net/atlantic/atl_ethdev.c b/drivers/net/atlantic/atl_ethdev.c
index d756ad4c8b99..870eafba3e13 100644
--- a/drivers/net/atlantic/atl_ethdev.c
+++ b/drivers/net/atlantic/atl_ethdev.c
@@ -104,6 +104,9 @@ eth_atl_dev_init(struct rte_eth_dev *eth_dev)
 	PMD_INIT_FUNC_TRACE();
 
 	eth_dev->dev_ops = &atl_eth_dev_ops;
+	eth_dev->rx_pkt_burst = &atl_recv_pkts;
+	eth_dev->tx_pkt_burst = &atl_xmit_pkts;
+	eth_dev->tx_pkt_prepare = &atl_prep_pkts;
 
 	/* For secondary processes, the primary process has done all the work */
 	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
@@ -155,6 +158,8 @@ eth_atl_dev_uninit(struct rte_eth_dev *eth_dev)
 		atl_dev_close(eth_dev);
 
 	eth_dev->dev_ops = NULL;
+	eth_dev->rx_pkt_burst = NULL;
+	eth_dev->tx_pkt_burst = NULL;
 
 	rte_free(eth_dev->data->mac_addrs);
 	eth_dev->data->mac_addrs = NULL;
@@ -208,6 +213,15 @@ atl_dev_start(struct rte_eth_dev *dev)
 	err = hw_atl_b0_hw_init(hw, dev->data->mac_addrs->addr_bytes);
 
 	hw_atl_b0_hw_start(hw);
+	/* initialize transmission unit */
+	atl_tx_init(dev);
+
+	/* This can fail when allocating mbufs for descriptor rings */
+	err = atl_rx_init(dev);
+	if (err) {
+		PMD_INIT_LOG(ERR, "Unable to initialize RX hardware");
+		return -EIO;
+	}
 
 	PMD_INIT_LOG(DEBUG, "FW version: %u.%u.%u",
 		hw->fw_ver_actual >> 24,
diff --git a/drivers/net/atlantic/atl_ethdev.h b/drivers/net/atlantic/atl_ethdev.h
index c0cc5475a091..990e8e4e9978 100644
--- a/drivers/net/atlantic/atl_ethdev.h
+++ b/drivers/net/atlantic/atl_ethdev.h
@@ -21,4 +21,19 @@ struct atl_adapter {
 	struct aq_hw_cfg_s         hw_cfg;
 };
 
+/*
+ * RX/TX function prototypes
+ */
+int atl_rx_init(struct rte_eth_dev *dev);
+int atl_tx_init(struct rte_eth_dev *dev);
+
+uint16_t atl_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
+		uint16_t nb_pkts);
+
+uint16_t atl_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
+		uint16_t nb_pkts);
+
+uint16_t atl_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
+		uint16_t nb_pkts);
+
 #endif /* _ATLANTIC_ETHDEV_H_ */
diff --git a/drivers/net/atlantic/atl_rxtx.c b/drivers/net/atlantic/atl_rxtx.c
new file mode 100644
index 000000000000..0fbd93038075
--- /dev/null
+++ b/drivers/net/atlantic/atl_rxtx.c
@@ -0,0 +1,42 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 Aquantia Corporation
+ */
+
+#include "atl_ethdev.h"
+
+int
+atl_tx_init(struct rte_eth_dev *eth_dev __rte_unused)
+{
+	return 0;
+}
+
+int
+atl_rx_init(struct rte_eth_dev *eth_dev __rte_unused)
+{
+	return 0;
+}
+
+uint16_t
+atl_prep_pkts(void *tx_queue __rte_unused,
+	      struct rte_mbuf **tx_pkts __rte_unused,
+	      uint16_t nb_pkts __rte_unused)
+{
+	return 0;
+}
+
+uint16_t
+atl_recv_pkts(void *rx_queue __rte_unused,
+	      struct rte_mbuf **rx_pkts __rte_unused,
+	      uint16_t nb_pkts __rte_unused)
+{
+	return 0;
+}
+
+uint16_t
+atl_xmit_pkts(void *tx_queue __rte_unused,
+	      struct rte_mbuf **tx_pkts __rte_unused,
+	      uint16_t nb_pkts __rte_unused)
+{
+	return 0;
+}
+
diff --git a/drivers/net/atlantic/meson.build b/drivers/net/atlantic/meson.build
index a0ad8f088571..28fb97cace6e 100644
--- a/drivers/net/atlantic/meson.build
+++ b/drivers/net/atlantic/meson.build
@@ -2,6 +2,7 @@
 # Copyright(c) 2018 Aquantia Corporation
 
 sources = files(
+	'atl_rxtx.c',
 	'atl_ethdev.c',
 	'atl_hw_regs.c',
 	'hw_atl/hw_atl_b0.c',
-- 
2.7.4