[dpdk-dev] [PATCH v3 04/46] net/liquidio: liquidio VF PMD driver registration

[Shijith Thotton <shijith.thotton@caviumnetworks.com>]

Register LiquidIO PMD (net_liovf) and define APIs to init and uninit.

Signed-off-by: Shijith Thotton <shijith.thotton@caviumnetworks.com>
Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Venkat Koppula <venkat.koppula@caviumnetworks.com>
Signed-off-by: Srisivasubramanian S <ssrinivasan@caviumnetworks.com>
Signed-off-by: Mallesham Jatharakonda <mjatharakonda@oneconvergence.com>
---
 doc/guides/nics/features/liquidio.ini   |   3 +
 drivers/net/liquidio/Makefile           |   2 +-
 drivers/net/liquidio/base/lio_hw_defs.h |  44 ++++++++++++
 drivers/net/liquidio/lio_ethdev.c       | 117 ++++++++++++++++++++++++++++++++
 drivers/net/liquidio/lio_ethdev.h       |  40 +++++++++++
 drivers/net/liquidio/lio_struct.h       |  65 ++++++++++++++++++
 6 files changed, 270 insertions(+), 1 deletion(-)
 create mode 100644 drivers/net/liquidio/base/lio_hw_defs.h
 create mode 100644 drivers/net/liquidio/lio_ethdev.c
 create mode 100644 drivers/net/liquidio/lio_ethdev.h
 create mode 100644 drivers/net/liquidio/lio_struct.h

diff --git a/doc/guides/nics/features/liquidio.ini b/doc/guides/nics/features/liquidio.ini
index 3422661..6c5d8d1 100644
--- a/doc/guides/nics/features/liquidio.ini
+++ b/doc/guides/nics/features/liquidio.ini
@@ -4,4 +4,7 @@
 ; Refer to default.ini for the full list of available PMD features.
 ;
 [Features]
+Multiprocess aware   = Y
+Linux UIO            = Y
+Linux VFIO           = Y
 x86-64               = Y
diff --git a/drivers/net/liquidio/Makefile b/drivers/net/liquidio/Makefile
index ce2b7fc..25685a7 100644
--- a/drivers/net/liquidio/Makefile
+++ b/drivers/net/liquidio/Makefile
@@ -50,7 +50,7 @@ VPATH += $(RTE_SDK)/drivers/net/liquidio/base
 #
 # all source are stored in SRCS-y
 #
-SRCS-$(CONFIG_RTE_LIBRTE_LIO_PMD) +=
+SRCS-$(CONFIG_RTE_LIBRTE_LIO_PMD) += lio_ethdev.c
 
 # this lib depends upon:
 DEPDIRS-$(CONFIG_RTE_LIBRTE_LIO_PMD) += lib/librte_eal lib/librte_ether
diff --git a/drivers/net/liquidio/base/lio_hw_defs.h b/drivers/net/liquidio/base/lio_hw_defs.h
new file mode 100644
index 0000000..db42f3e
--- /dev/null
+++ b/drivers/net/liquidio/base/lio_hw_defs.h
@@ -0,0 +1,44 @@
+/*
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2017 Cavium, Inc.. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Cavium, Inc. nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _LIO_HW_DEFS_H_
+#define _LIO_HW_DEFS_H_
+
+#ifndef PCI_VENDOR_ID_CAVIUM
+#define PCI_VENDOR_ID_CAVIUM	0x177D
+#endif
+
+#define LIO_CN23XX_VF_VID	0x9712
+
+#define LIO_DEVICE_NAME_LEN		32
+#endif /* _LIO_HW_DEFS_H_ */
diff --git a/drivers/net/liquidio/lio_ethdev.c b/drivers/net/liquidio/lio_ethdev.c
new file mode 100644
index 0000000..49efede
--- /dev/null
+++ b/drivers/net/liquidio/lio_ethdev.c
@@ -0,0 +1,117 @@
+/*
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2017 Cavium, Inc.. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Cavium, Inc. nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <rte_ethdev.h>
+#include <rte_cycles.h>
+#include <rte_malloc.h>
+#include <rte_alarm.h>
+
+#include "lio_logs.h"
+#include "lio_struct.h"
+#include "lio_ethdev.h"
+
+static int
+lio_eth_dev_uninit(struct rte_eth_dev *eth_dev)
+{
+	PMD_INIT_FUNC_TRACE();
+
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+		return -EPERM;
+
+	rte_free(eth_dev->data->mac_addrs);
+	eth_dev->data->mac_addrs = NULL;
+
+	return 0;
+}
+
+static int
+lio_eth_dev_init(struct rte_eth_dev *eth_dev)
+{
+	struct rte_pci_device *pdev = RTE_DEV_TO_PCI(eth_dev->device);
+	struct lio_device *lio_dev = LIO_DEV(eth_dev);
+
+	PMD_INIT_FUNC_TRACE();
+
+	/* Primary does the initialization. */
+	if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+		return 0;
+
+	rte_eth_copy_pci_info(eth_dev, pdev);
+	eth_dev->data->dev_flags |= RTE_ETH_DEV_DETACHABLE;
+
+	if (pdev->mem_resource[0].addr) {
+		lio_dev->hw_addr = pdev->mem_resource[0].addr;
+	} else {
+		PMD_INIT_LOG(ERR, "ERROR: Failed to map BAR0\n");
+		return -ENODEV;
+	}
+
+	lio_dev->eth_dev = eth_dev;
+	/* set lio device print string */
+	snprintf(lio_dev->dev_string, sizeof(lio_dev->dev_string),
+		 "%s[%02x:%02x.%x]", pdev->driver->driver.name,
+		 pdev->addr.bus, pdev->addr.devid, pdev->addr.function);
+
+	lio_dev->port_id = eth_dev->data->port_id;
+
+	eth_dev->data->mac_addrs = rte_zmalloc("lio", ETHER_ADDR_LEN, 0);
+	if (eth_dev->data->mac_addrs == NULL) {
+		lio_dev_err(lio_dev,
+			    "MAC addresses memory allocation failed\n");
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+/* Set of PCI devices this driver supports */
+static const struct rte_pci_id pci_id_liovf_map[] = {
+	{ RTE_PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, LIO_CN23XX_VF_VID) },
+	{ .vendor_id = 0, /* sentinel */ }
+};
+
+static struct eth_driver rte_liovf_pmd = {
+	.pci_drv = {
+		.id_table	= pci_id_liovf_map,
+		.drv_flags      = RTE_PCI_DRV_NEED_MAPPING,
+		.probe		= rte_eth_dev_pci_probe,
+		.remove		= rte_eth_dev_pci_remove,
+	},
+	.eth_dev_init		= lio_eth_dev_init,
+	.eth_dev_uninit		= lio_eth_dev_uninit,
+	.dev_private_size	= sizeof(struct lio_device),
+};
+
+RTE_PMD_REGISTER_PCI(net_liovf, rte_liovf_pmd.pci_drv);
+RTE_PMD_REGISTER_PCI_TABLE(net_liovf, pci_id_liovf_map);
+RTE_PMD_REGISTER_KMOD_DEP(net_liovf, "* igb_uio | vfio");
diff --git a/drivers/net/liquidio/lio_ethdev.h b/drivers/net/liquidio/lio_ethdev.h
new file mode 100644
index 0000000..76c9072
--- /dev/null
+++ b/drivers/net/liquidio/lio_ethdev.h
@@ -0,0 +1,40 @@
+/*
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2017 Cavium, Inc.. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Cavium, Inc. nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _LIO_ETHDEV_H_
+#define _LIO_ETHDEV_H_
+
+#include <stdint.h>
+
+#define LIO_DEV(_eth_dev)		((_eth_dev)->data->dev_private)
+#endif	/* _LIO_ETHDEV_H_ */
diff --git a/drivers/net/liquidio/lio_struct.h b/drivers/net/liquidio/lio_struct.h
new file mode 100644
index 0000000..dcf99ce
--- /dev/null
+++ b/drivers/net/liquidio/lio_struct.h
@@ -0,0 +1,65 @@
+/*
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2017 Cavium, Inc.. All rights reserved.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Cavium, Inc. nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _LIO_STRUCT_H_
+#define _LIO_STRUCT_H_
+
+#include <stdio.h>
+#include <stdint.h>
+#include <sys/queue.h>
+
+#include <rte_spinlock.h>
+#include <rte_atomic.h>
+
+#include "lio_hw_defs.h"
+
+/* -----------------------  THE LIO DEVICE  --------------------------- */
+/** The lio device.
+ *  Each lio device has this structure to represent all its
+ *  components.
+ */
+struct lio_device {
+	uint8_t *hw_addr;
+
+	char dev_string[LIO_DEVICE_NAME_LEN]; /* Device print string */
+
+	struct rte_eth_dev      *eth_dev;
+
+	uint8_t max_rx_queues;
+	uint8_t max_tx_queues;
+	uint8_t nb_rx_queues;
+	uint8_t nb_tx_queues;
+	uint8_t port_configured;
+	uint8_t port_id;
+};
+#endif /* _LIO_STRUCT_H_ */
-- 
1.8.3.1