net/atlantic: implement core logic for Tx/Rx

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>

diff --git a/doc/guides/nics/features/atlantic.ini b/doc/guides/nics/features/atlantic.ini
index 1b9cbf9..c603b7b 100644 (file)
--- 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 91306d7..b88da36 100644 (file)
--- 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 d756ad4..870eafb 100644 (file)
--- 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 c0cc547..990e8e4 100644 (file)
--- 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 (file)
index 0000000..0fbd930
--- /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 a0ad8f0..28fb97c 100644 (file)
--- 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',