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Message-ID: <1480323038-13702-3-git-send-email-rvatsavayi@caviumnetworks.com>
Date: Mon, 28 Nov 2016 00:50:31 -0800
From: Raghu Vatsavayi <rvatsavayi@...iumnetworks.com>
To: <davem@...emloft.net>
CC: <netdev@...r.kernel.org>,
Raghu Vatsavayi <rvatsavayi@...iumnetworks.com>,
Raghu Vatsavayi <raghu.vatsavayi@...iumnetworks.com>,
Derek Chickles <derek.chickles@...iumnetworks.com>,
Satanand Burla <satananda.burla@...iumnetworks.com>,
Felix Manlunas <felix.manlunas@...iumnetworks.com>
Subject: [PATCH net-next V2 2/9] liquidio CN23XX: VF registration
Adds support for cn23xx VF probe and registration.
Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@...iumnetworks.com>
Signed-off-by: Derek Chickles <derek.chickles@...iumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@...iumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@...iumnetworks.com>
---
drivers/net/ethernet/cavium/Kconfig | 12 +++
drivers/net/ethernet/cavium/liquidio/Makefile | 21 ++++
.../ethernet/cavium/liquidio/cn23xx_vf_device.h | 34 ++++++
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c | 120 +++++++++++++++++++++
.../net/ethernet/cavium/liquidio/octeon_device.c | 4 +
5 files changed, 191 insertions(+)
create mode 100644 drivers/net/ethernet/cavium/liquidio/cn23xx_vf_device.h
create mode 100644 drivers/net/ethernet/cavium/liquidio/lio_vf_main.c
diff --git a/drivers/net/ethernet/cavium/Kconfig b/drivers/net/ethernet/cavium/Kconfig
index 92f411c..c0679c2 100644
--- a/drivers/net/ethernet/cavium/Kconfig
+++ b/drivers/net/ethernet/cavium/Kconfig
@@ -74,4 +74,16 @@ config OCTEON_MGMT_ETHERNET
port on Cavium Networks' Octeon CN57XX, CN56XX, CN55XX,
CN54XX, CN52XX, and CN6XXX chips.
+config LIQUIDIO_VF
+ tristate "Cavium LiquidIO VF support"
+ depends on 64BIT && PCI_MSI
+ select PTP_1588_CLOCK
+ ---help---
+ This driver supports Cavium LiquidIO Intelligent Server Adapter
+ based on CN23XX chips.
+
+ To compile this driver as a module, choose M here: The module
+ will be called liquidio_vf. MSI-X interrupt support is required
+ for this driver to work correctly
+
endif # NET_VENDOR_CAVIUM
diff --git a/drivers/net/ethernet/cavium/liquidio/Makefile b/drivers/net/ethernet/cavium/liquidio/Makefile
index 14958de..69d23fc 100644
--- a/drivers/net/ethernet/cavium/liquidio/Makefile
+++ b/drivers/net/ethernet/cavium/liquidio/Makefile
@@ -17,3 +17,24 @@ liquidio-$(CONFIG_LIQUIDIO) += lio_ethtool.o \
octeon_nic.o
liquidio-objs := lio_main.o octeon_console.o $(liquidio-y)
+
+obj-$(CONFIG_LIQUIDIO_VF) += liquidio_vf.o
+
+ifeq ($(CONFIG_LIQUIDIO)$(CONFIG_LIQUIDIO_VF), yy)
+ liquidio_vf-objs := lio_vf_main.o
+else
+liquidio_vf-$(CONFIG_LIQUIDIO_VF) += lio_ethtool.o \
+ lio_core.o \
+ request_manager.o \
+ response_manager.o \
+ octeon_device.o \
+ cn66xx_device.o \
+ cn68xx_device.o \
+ cn23xx_pf_device.o \
+ octeon_mailbox.o \
+ octeon_mem_ops.o \
+ octeon_droq.o \
+ octeon_nic.o
+
+liquidio_vf-objs := lio_vf_main.o $(liquidio_vf-y)
+endif
diff --git a/drivers/net/ethernet/cavium/liquidio/cn23xx_vf_device.h b/drivers/net/ethernet/cavium/liquidio/cn23xx_vf_device.h
new file mode 100644
index 0000000..015b6d4
--- /dev/null
+++ b/drivers/net/ethernet/cavium/liquidio/cn23xx_vf_device.h
@@ -0,0 +1,34 @@
+/**********************************************************************
+ * Author: Cavium, Inc.
+ *
+ * Contact: support@...ium.com
+ * Please include "LiquidIO" in the subject.
+ *
+ * Copyright (c) 2003-2016 Cavium, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT. See the GNU General Public License for more details.
+ ***********************************************************************/
+/*! \file cn23xx_device.h
+ * \brief Host Driver: Routines that perform CN23XX specific operations.
+ */
+
+#ifndef __CN23XX_VF_DEVICE_H__
+#define __CN23XX_VF_DEVICE_H__
+
+#include "cn23xx_vf_regs.h"
+
+/* Register address and configuration for a CN23XX devices.
+ * If device specific changes need to be made then add a struct to include
+ * device specific fields as shown in the commented section
+ */
+struct octeon_cn23xx_vf {
+ struct octeon_config *conf;
+};
+#endif
diff --git a/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c b/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c
new file mode 100644
index 0000000..fd108cd
--- /dev/null
+++ b/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c
@@ -0,0 +1,120 @@
+/**********************************************************************
+ * Author: Cavium, Inc.
+ *
+ * Contact: support@...ium.com
+ * Please include "LiquidIO" in the subject.
+ *
+ * Copyright (c) 2003-2016 Cavium, Inc.
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT. See the GNU General Public License for more details.
+ ***********************************************************************/
+#include <linux/pci.h>
+#include <net/vxlan.h>
+#include "liquidio_common.h"
+#include "octeon_droq.h"
+#include "octeon_iq.h"
+#include "response_manager.h"
+#include "octeon_device.h"
+
+MODULE_AUTHOR("Cavium Networks, <support@...ium.com>");
+MODULE_DESCRIPTION("Cavium LiquidIO Intelligent Server Adapter Virtual Function Driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(LIQUIDIO_VERSION);
+
+struct octeon_device_priv {
+ /* Tasklet structures for this device. */
+ struct tasklet_struct droq_tasklet;
+ unsigned long napi_mask;
+};
+
+static int
+liquidio_vf_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
+static void liquidio_vf_remove(struct pci_dev *pdev);
+
+static const struct pci_device_id liquidio_vf_pci_tbl[] = {
+ {
+ PCI_VENDOR_ID_CAVIUM, OCTEON_CN23XX_VF_VID,
+ PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0
+ },
+ {
+ 0, 0, 0, 0, 0, 0, 0
+ }
+};
+MODULE_DEVICE_TABLE(pci, liquidio_vf_pci_tbl);
+
+static struct pci_driver liquidio_vf_pci_driver = {
+ .name = "LiquidIO_VF",
+ .id_table = liquidio_vf_pci_tbl,
+ .probe = liquidio_vf_probe,
+ .remove = liquidio_vf_remove,
+};
+
+/**
+ * \brief PCI probe handler
+ * @param pdev PCI device structure
+ * @param ent unused
+ */
+static int
+liquidio_vf_probe(struct pci_dev *pdev,
+ const struct pci_device_id *ent __attribute__((unused)))
+{
+ struct octeon_device *oct_dev = NULL;
+
+ oct_dev = octeon_allocate_device(pdev->device,
+ sizeof(struct octeon_device_priv));
+
+ if (!oct_dev) {
+ dev_err(&pdev->dev, "Unable to allocate device\n");
+ return -ENOMEM;
+ }
+
+ dev_info(&pdev->dev, "Initializing device %x:%x.\n",
+ (u32)pdev->vendor, (u32)pdev->device);
+
+ /* Assign octeon_device for this device to the private data area. */
+ pci_set_drvdata(pdev, oct_dev);
+
+ /* set linux specific device pointer */
+ oct_dev->pci_dev = pdev;
+
+ return 0;
+}
+
+/**
+ * \brief Cleans up resources at unload time
+ * @param pdev PCI device structure
+ */
+static void liquidio_vf_remove(struct pci_dev *pdev)
+{
+ struct octeon_device *oct_dev = pci_get_drvdata(pdev);
+
+ dev_dbg(&oct_dev->pci_dev->dev, "Stopping device\n");
+
+ /* This octeon device has been removed. Update the global
+ * data structure to reflect this. Free the device structure.
+ */
+ octeon_free_device_mem(oct_dev);
+}
+
+static int __init liquidio_vf_init(void)
+{
+ octeon_init_device_list(0);
+ return pci_register_driver(&liquidio_vf_pci_driver);
+}
+
+static void __exit liquidio_vf_exit(void)
+{
+ pci_unregister_driver(&liquidio_vf_pci_driver);
+
+ pr_info("LiquidIO_VF network module is now unloaded\n");
+}
+
+module_init(liquidio_vf_init);
+module_exit(liquidio_vf_exit);
diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_device.c b/drivers/net/ethernet/cavium/liquidio/octeon_device.c
index 79c8875..05bb0fd 100644
--- a/drivers/net/ethernet/cavium/liquidio/octeon_device.c
+++ b/drivers/net/ethernet/cavium/liquidio/octeon_device.c
@@ -28,6 +28,7 @@
#include "cn66xx_regs.h"
#include "cn66xx_device.h"
#include "cn23xx_pf_device.h"
+#include "cn23xx_vf_device.h"
/** Default configuration
* for CN66XX OCTEON Models.
@@ -672,6 +673,9 @@ static struct octeon_device *octeon_allocate_device_mem(u32 pci_id,
case OCTEON_CN23XX_PF_VID:
configsize = sizeof(struct octeon_cn23xx_pf);
break;
+ case OCTEON_CN23XX_VF_VID:
+ configsize = sizeof(struct octeon_cn23xx_vf);
+ break;
default:
pr_err("%s: Unknown PCI Device: 0x%x\n",
__func__,
--
1.8.3.1
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