P4080 PCIe Adapter SDK User Guide Production Release

Freescale Semiconductor
struct device *pci_dev;
char pci_info[ETHTOOL_BUSINFO_LEN];
u64 *msi_status_local;
u64 *msi_status_remote;
volatile u64 msi_status;
p4080_fd_ring_t tx_ring[MAX_NUM_RINGS];
p4080_fd_ring_t rx_ring[MAX_NUM_RINGS];
void *priv_cb_arg;
private_ring_callback *priv_cb;
cmd_ring_callback *cmd_cb;
u32 tx_ring_count;
u32 rx_ring_count;
u32 fd_size;
} hw_eng_data_t;
o pci_dev – PCI Device context that is maintained by the Host Packet Driver and
is given to Hardware Function Driver for assisting all kinds of memory
mappings.
o pci_info – PCI Bus, Device and Function (BDF) information of the Smart NIC
Adapter. This information is given to Hardware Function Driver for displaying
in the “ethtool -i ”
o msi_status_local – Address of the MSI status that is locally maintained in Host
memory. This is allocated by Host Packet Driver and the address is shared with
Hardware Function Driver.
o msi_status_remote – Address of MSI status that exists in P4080 memory. The
memory for this is allocated by P4080 Packet Driver and its address is shared
with Host Packet Driver during initialization handshake. The Host Packet Driver
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