net/axgbe: add minimal init and uninit support

Add ethernet poll mode driver for AMD 10G devices embedded in
AMD EPYC™ EMBEDDED 3000 family processors.

Signed-off-by: Ravi Kumar <ravi1.kumar@amd.com>

MAINTAINERS

@@ -381,6 +381,12 @@ M: Ferruh Yigit <ferruh.yigit@intel.com>
 T: git://dpdk.org/next/dpdk-next-net
 F: doc/guides/nics/features/default.ini
 
+AMD AXGBE PMD
+M: Ravi Kumar <ravi1.kumar@amd.com>
+F: drivers/net/axgbe/
+F: doc/guides/nics/axgbe.rst
+F: doc/guides/nics/features/axgbe.ini
+
 Link bonding
 M: Declan Doherty <declan.doherty@intel.com>
 F: drivers/net/bonding/

config/common_base

@@ -157,6 +157,12 @@ CONFIG_RTE_LIBRTE_ARK_DEBUG_TX=n
 CONFIG_RTE_LIBRTE_ARK_DEBUG_STATS=n
 CONFIG_RTE_LIBRTE_ARK_DEBUG_TRACE=n
 
+#
+# Compile AMD PMD
+#
+CONFIG_RTE_LIBRTE_AXGBE_PMD=y
+CONFIG_RTE_LIBRTE_AXGBE_PMD_DEBUG=n
+
 #
 # Compile burst-oriented Broadcom PMD driver
 #

doc/guides/rel_notes/release_18_05.rst

@@ -58,6 +58,12 @@ New Features
   * Added support for NVGRE, VXLAN and GENEVE filters in flow API.
   * Added support for DROP action in flow API.
 
+* **Added Ethernet poll mode driver for AMD XGBE devices.**
+
+  Added the new ``axgbe`` ethernet poll mode driver for AMD XGBE devices.
+  See the :doc:`../nics/axgbe` nic driver guide for more details on this
+  new driver.
+
 * **Added device event monitor framework.**
 
   Added a general device event monitor framework at EAL, for device dynamic management.

drivers/net/Makefile

@@ -12,6 +12,7 @@ DIRS-$(CONFIG_RTE_LIBRTE_PMD_AF_PACKET) += af_packet
 DIRS-$(CONFIG_RTE_LIBRTE_ARK_PMD) += ark
 DIRS-$(CONFIG_RTE_LIBRTE_AVF_PMD) += avf
 DIRS-$(CONFIG_RTE_LIBRTE_AVP_PMD) += avp
+DIRS-$(CONFIG_RTE_LIBRTE_AXGBE_PMD) += axgbe
 DIRS-$(CONFIG_RTE_LIBRTE_BNX2X_PMD) += bnx2x
 DIRS-$(CONFIG_RTE_LIBRTE_PMD_BOND) += bonding
 DIRS-$(CONFIG_RTE_LIBRTE_CXGBE_PMD) += cxgbe

drivers/net/axgbe/Makefile

@@ -0,0 +1,27 @@
+#   SPDX-License-Identifier: BSD-3-Clause
+#   Copyright (c) 2018 Advanced Micro Devices, Inc. All rights reserved.
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+#
+# library name
+#
+LIB = librte_pmd_axgbe.a
+
+CFLAGS += -O3
+CFLAGS += $(WERROR_FLAGS)
+
+EXPORT_MAP := rte_pmd_axgbe_version.map
+
+LIBABIVER := 1
+
+LDLIBS += -lrte_eal -lrte_mbuf -lrte_mempool
+LDLIBS += -lrte_pci -lrte_bus_pci
+LDLIBS += -lrte_ethdev
+
+#
+# all source are stored in SRCS-y
+#
+SRCS-$(CONFIG_RTE_LIBRTE_AXGBE_PMD) += axgbe_ethdev.c
+
+include $(RTE_SDK)/mk/rte.lib.mk

drivers/net/axgbe/axgbe_common.h

@@ -0,0 +1,50 @@
+/*   SPDX-License-Identifier: BSD-3-Clause
+ *   Copyright(c) 2018 Advanced Micro Devices, Inc. All rights reserved.
+ *   Copyright(c) 2018 Synopsys, Inc. All rights reserved.
+ */
+
+#ifndef __AXGBE_COMMON_H__
+#define __AXGBE_COMMON_H__
+
+#include "axgbe_logs.h"
+
+#include <stdbool.h>
+#include <limits.h>
+#include <sys/queue.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <stdint.h>
+#include <stdarg.h>
+#include <unistd.h>
+#include <inttypes.h>
+#include <pthread.h>
+
+#include <rte_byteorder.h>
+#include <rte_memory.h>
+#include <rte_malloc.h>
+#include <rte_hexdump.h>
+#include <rte_log.h>
+#include <rte_debug.h>
+#include <rte_branch_prediction.h>
+#include <rte_eal.h>
+#include <rte_memzone.h>
+#include <rte_ether.h>
+#include <rte_ethdev.h>
+#include <rte_dev.h>
+#include <rte_errno.h>
+#include <rte_dev.h>
+#include <rte_ethdev_pci.h>
+#include <rte_common.h>
+#include <rte_cycles.h>
+#include <rte_io.h>
+
+#define BIT(nr)	                       (1 << (nr))
+#ifndef ARRAY_SIZE
+#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
+#endif
+
+#define AXGBE_HZ				250
+
+#endif /* __AXGBE_COMMON_H__ */

drivers/net/axgbe/axgbe_ethdev.c

@@ -0,0 +1,97 @@
+/*   SPDX-License-Identifier: BSD-3-Clause
+ *   Copyright(c) 2018 Advanced Micro Devices, Inc. All rights reserved.
+ *   Copyright(c) 2018 Synopsys, Inc. All rights reserved.
+ */
+
+#include "axgbe_ethdev.h"
+
+static int eth_axgbe_dev_init(struct rte_eth_dev *eth_dev);
+static int eth_axgbe_dev_uninit(struct rte_eth_dev *eth_dev);
+
+/* The set of PCI devices this driver supports */
+#define AMD_PCI_VENDOR_ID       0x1022
+#define AMD_PCI_AXGBE_DEVICE_V2A 0x1458
+#define AMD_PCI_AXGBE_DEVICE_V2B 0x1459
+
+int axgbe_logtype_init;
+int axgbe_logtype_driver;
+
+static const struct rte_pci_id pci_id_axgbe_map[] = {
+	{RTE_PCI_DEVICE(AMD_PCI_VENDOR_ID, AMD_PCI_AXGBE_DEVICE_V2A)},
+	{RTE_PCI_DEVICE(AMD_PCI_VENDOR_ID, AMD_PCI_AXGBE_DEVICE_V2B)},
+	{ .vendor_id = 0, },
+};
+
+/*
+ * It returns 0 on success.
+ */
+static int
+eth_axgbe_dev_init(struct rte_eth_dev *eth_dev)
+{
+	PMD_INIT_FUNC_TRACE();
+	struct axgbe_port *pdata;
+	struct rte_pci_device *pci_dev;
+
+	/*
+	 * For secondary processes, we don't initialise any further as primary
+	 * has already done this work.
+	 */
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+		return 0;
+
+	pdata = (struct axgbe_port *)eth_dev->data->dev_private;
+	pdata->eth_dev = eth_dev;
+
+	pci_dev = RTE_DEV_TO_PCI(eth_dev->device);
+	pdata->pci_dev = pci_dev;
+
+	PMD_INIT_LOG(DEBUG, "port %d vendorID=0x%x deviceID=0x%x",
+		     eth_dev->data->port_id, pci_dev->id.vendor_id,
+		     pci_dev->id.device_id);
+
+	return 0;
+}
+
+static int
+eth_axgbe_dev_uninit(struct rte_eth_dev *eth_dev __rte_unused)
+{
+	/* stub function */
+	PMD_INIT_FUNC_TRACE();
+
+	return 0;
+}
+
+static int eth_axgbe_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
+	struct rte_pci_device *pci_dev)
+{
+	return rte_eth_dev_pci_generic_probe(pci_dev,
+		sizeof(struct axgbe_port), eth_axgbe_dev_init);
+}
+
+static int eth_axgbe_pci_remove(struct rte_pci_device *pci_dev)
+{
+	return rte_eth_dev_pci_generic_remove(pci_dev, eth_axgbe_dev_uninit);
+}
+
+static struct rte_pci_driver rte_axgbe_pmd = {
+	.id_table = pci_id_axgbe_map,
+	.drv_flags = RTE_PCI_DRV_NEED_MAPPING,
+	.probe = eth_axgbe_pci_probe,
+	.remove = eth_axgbe_pci_remove,
+};
+
+RTE_PMD_REGISTER_PCI(net_axgbe, rte_axgbe_pmd);
+RTE_PMD_REGISTER_PCI_TABLE(net_axgbe, pci_id_axgbe_map);
+RTE_PMD_REGISTER_KMOD_DEP(net_axgbe, "* igb_uio | uio_pci_generic | vfio-pci");
+
+RTE_INIT(axgbe_init_log);
+static void
+axgbe_init_log(void)
+{
+	axgbe_logtype_init = rte_log_register("pmd.net.axgbe.init");
+	if (axgbe_logtype_init >= 0)
+		rte_log_set_level(axgbe_logtype_init, RTE_LOG_NOTICE);
+	axgbe_logtype_driver = rte_log_register("pmd.net.axgbe.driver");
+	if (axgbe_logtype_driver >= 0)
+		rte_log_set_level(axgbe_logtype_driver, RTE_LOG_NOTICE);
+}

drivers/net/axgbe/axgbe_ethdev.h

@@ -0,0 +1,23 @@
+/*   SPDX-License-Identifier: BSD-3-Clause
+ *   Copyright(c) 2018 Advanced Micro Devices, Inc. All rights reserved.
+ *   Copyright(c) 2018 Synopsys, Inc. All rights reserved.
+ */
+
+#ifndef RTE_ETH_AXGBE_H_
+#define RTE_ETH_AXGBE_H_
+
+#include <rte_mempool.h>
+#include <rte_lcore.h>
+#include "axgbe_common.h"
+
+/*
+ * Structure to store private data for each port.
+ */
+struct axgbe_port {
+	/*  Ethdev where port belongs*/
+	struct rte_eth_dev *eth_dev;
+	/* Pci dev info */
+	const struct rte_pci_device *pci_dev;
+};
+
+#endif /* RTE_ETH_AXGBE_H_ */

drivers/net/axgbe/axgbe_logs.h

@@ -0,0 +1,26 @@
+/*   SPDX-License-Identifier: BSD-3-Clause
+ *   Copyright(c) 2018 Advanced Micro Devices, Inc. All rights reserved.
+ */
+
+#ifndef _AXGBE_LOGS_H_
+#define _AXGBE_LOGS_H_
+
+#include <stdio.h>
+
+extern int axgbe_logtype_init;
+#define PMD_INIT_LOG(level, fmt, args...) \
+	rte_log(RTE_LOG_ ## level, axgbe_logtype_init, "%s(): " fmt "\n", \
+		__func__, ##args)
+
+#ifdef RTE_LIBRTE_AXGBE_PMD_DEBUG
+#define PMD_INIT_FUNC_TRACE() PMD_INIT_LOG(DEBUG, " >>")
+#else
+#define PMD_INIT_FUNC_TRACE() do { } while (0)
+#endif
+
+extern int axgbe_logtype_driver;
+#define PMD_DRV_LOG(level, fmt, args...) \
+	rte_log(RTE_LOG_ ## level, axgbe_logtype_driver, "%s(): " fmt, \
+		__func__, ## args)
+
+#endif /* _AXGBE_LOGS_H_ */

drivers/net/axgbe/rte_pmd_axgbe_version.map

@@ -0,0 +1,4 @@
+DPDK_18.05 {
+
+        local: *;
+};

mk/rte.app.mk

@@ -137,6 +137,7 @@ _LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_AF_PACKET)  += -lrte_pmd_af_packet
 _LDLIBS-$(CONFIG_RTE_LIBRTE_ARK_PMD)        += -lrte_pmd_ark
 _LDLIBS-$(CONFIG_RTE_LIBRTE_AVF_PMD)        += -lrte_pmd_avf
 _LDLIBS-$(CONFIG_RTE_LIBRTE_AVP_PMD)        += -lrte_pmd_avp
+_LDLIBS-$(CONFIG_RTE_LIBRTE_AXGBE_PMD)      += -lrte_pmd_axgbe
 _LDLIBS-$(CONFIG_RTE_LIBRTE_BNX2X_PMD)      += -lrte_pmd_bnx2x -lz
 _LDLIBS-$(CONFIG_RTE_LIBRTE_BNXT_PMD)       += -lrte_pmd_bnxt
 _LDLIBS-$(CONFIG_RTE_LIBRTE_PMD_BOND)       += -lrte_pmd_bond