// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright 2008-2010 Cisco Systems, Inc. All rights reserved.
* Copyright 2007 Nuova Systems, Inc. All rights reserved.
*/
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/if_ether.h>
#include "vnic_resource.h"
#include "vnic_devcmd.h"
#include "vnic_dev.h"
#include "vnic_wq.h"
#include "vnic_stats.h"
#include "enic.h"
#define VNIC_MAX_RES_HDR_SIZE \
(sizeof(struct vnic_resource_header) + \
sizeof(struct vnic_resource) * RES_TYPE_MAX)
#define VNIC_RES_STRIDE 128
void *vnic_dev_priv(struct vnic_dev *vdev)
{
return vdev->priv;
}
static int vnic_dev_discover_res(struct vnic_dev *vdev,
struct vnic_dev_bar *bar, unsigned int num_bars)
{
struct vnic_resource_header __iomem *rh;
struct mgmt_barmap_hdr __iomem *mrh;
struct vnic_resource __iomem *r;
u8 type;
if (num_bars == 0)
return -EINVAL;
if (bar->len < VNIC_MAX_RES_HDR_SIZE) {
vdev_err(vdev, "vNIC BAR0 res hdr length error\n");
return -EINVAL;
}
rh = bar->vaddr;
mrh = bar->vaddr;
if (!rh) {
vdev_err(vdev, "vNIC BAR0 res hdr not mem-mapped\n");
return -EINVAL;
}
/* Check for mgmt vnic in addition to normal vnic */
if ((ioread32(&rh->magic) != VNIC_RES_MAGIC) ||
(ioread32(&rh->version) != VNIC_RES_VERSION)) {
if ((ioread32(&mrh->magic) != MGMTVNIC_MAGIC) ||
(ioread32(&mrh->version) != MGMTVNIC_VERSION)) {
vdev_err(vdev, "vNIC BAR0 res magic/version error exp (%lx/%lx) or (%lx/%lx), curr (%x/%x)\n",
VNIC_RES_MAGIC, VNIC_RES_VERSION,
MGMTVNIC_MAGIC, MGMTVNIC_VERSION,
ioread32(&rh->magic), ioread32(&rh->version));
return -EINVAL;
}
}
if (ioread32(&mrh->magic) == MGMTVNIC_MAGIC)
r = (struct vnic_resource __iomem *)(mrh + 1);
else
r = (struct vnic_resource __iomem *)(rh + 1);
while ((type 