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liquidio CN23XX: VF registration

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Adds support for cn23xx VF probe and registration.

Signed-off-by: Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com>
Signed-off-by: Derek Chickles <derek.chickles@caviumnetworks.com>
Signed-off-by: Satanand Burla <satananda.burla@caviumnetworks.com>
Signed-off-by: Felix Manlunas <felix.manlunas@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Raghu Vatsavayi 2016-11-28 16:54:34 -08:00 committed by David S. Miller
parent 547be9ec12
commit 111fc64a23
5 changed files with 191 additions and 0 deletions
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12
drivers/net/ethernet/cavium/Kconfig
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@ -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

21
drivers/net/ethernet/cavium/liquidio/Makefile
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@ -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

34
drivers/net/ethernet/cavium/liquidio/cn23xx_vf_device.h Normal file
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@ -0,0 +1,34 @@
/**********************************************************************
* Author: Cavium, Inc.
*
* Contact: support@cavium.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

120
drivers/net/ethernet/cavium/liquidio/lio_vf_main.c Normal file
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@ -0,0 +1,120 @@
/**********************************************************************
* Author: Cavium, Inc.
*
* Contact: support@cavium.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@cavium.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);

4
drivers/net/ethernet/cavium/liquidio/octeon_device.c
View File

@ -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__,