enic: Add support for firmware management device
This patch adds support for firmware management device in enic driver.
A management device is a virtual PCIe device that firmware can present
to the host as its management endpoint. It provides the interface between
the host and adapter firmware for all management operations.
Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/enic/vnic_dev.c b/drivers/net/enic/vnic_dev.c
index 6a5b578..08d5d42 100644
--- a/drivers/net/enic/vnic_dev.c
+++ b/drivers/net/enic/vnic_dev.c
@@ -74,6 +74,7 @@
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;
@@ -85,22 +86,32 @@
return -EINVAL;
}
- rh = bar->vaddr;
+ rh = bar->vaddr;
+ mrh = bar->vaddr;
if (!rh) {
pr_err("vNIC BAR0 res hdr not mem-mapped\n");
return -EINVAL;
}
- if (ioread32(&rh->magic) != VNIC_RES_MAGIC ||
- ioread32(&rh->version) != VNIC_RES_VERSION) {
- pr_err("vNIC BAR0 res magic/version error "
- "exp (%lx/%lx) curr (%x/%x)\n",
+ /* 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)) {
+ pr_err("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;
+ return -EINVAL;
+ }
}
- r = (struct vnic_resource __iomem *)(rh + 1);
+ if (ioread32(&mrh->magic) == MGMTVNIC_MAGIC)
+ r = (struct vnic_resource __iomem *)(mrh + 1);
+ else
+ r = (struct vnic_resource __iomem *)(rh + 1);
+
while ((type = ioread8(&r->type)) != RES_TYPE_EOL) {