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#ifndef _IPXE_EFI_SNP_H
#define _IPXE_EFI_SNP_H
/** @file
*
* iPXE EFI SNP interface
*
*/
#include <ipxe/list.h>
#include <ipxe/netdevice.h>
#include <ipxe/efi/efi.h>
#include <ipxe/efi/Protocol/SimpleNetwork.h>
#include <ipxe/efi/Protocol/NetworkInterfaceIdentifier.h>
#include <ipxe/efi/Protocol/ComponentName2.h>
#include <ipxe/efi/Protocol/DevicePath.h>
#include <ipxe/efi/Protocol/HiiConfigAccess.h>
#include <ipxe/efi/Protocol/HiiDatabase.h>
#include <ipxe/efi/Protocol/LoadFile.h>
/** SNP transmit completion ring size */
#define EFI_SNP_NUM_TX 32
/** An SNP device */
struct efi_snp_device {
/** List of SNP devices */
struct list_head list;
/** The underlying iPXE network device */
struct net_device *netdev;
/** The underlying EFI device */
struct efi_device *efidev;
/** EFI device handle */
EFI_HANDLE handle;
/** The SNP structure itself */
EFI_SIMPLE_NETWORK_PROTOCOL snp;
/** The SNP "mode" (parameters) */
EFI_SIMPLE_NETWORK_MODE mode;
/** Started flag */
int started;
/** Pending interrupt status */
unsigned int interrupts;
/** Transmit completion ring */
VOID *tx[EFI_SNP_NUM_TX];
/** Transmit completion ring producer counter */
unsigned int tx_prod;
/** Transmit completion ring consumer counter */
unsigned int tx_cons;
/** Receive queue */
struct list_head rx;
/** The network interface identifier */
EFI_NETWORK_INTERFACE_IDENTIFIER_PROTOCOL nii;
/** Component name protocol */
EFI_COMPONENT_NAME2_PROTOCOL name2;
/** Load file protocol handle */
EFI_LOAD_FILE_PROTOCOL load_file;
/** HII configuration access protocol */
EFI_HII_CONFIG_ACCESS_PROTOCOL hii;
/** HII package list */
EFI_HII_PACKAGE_LIST_HEADER *package_list;
/** HII handle */
EFI_HII_HANDLE hii_handle;
/** Device name */
wchar_t name[ sizeof ( ( ( struct net_device * ) NULL )->name ) ];
/** Driver name */
wchar_t driver_name[16];
/** Controller name */
wchar_t controller_name[64];
/** The device path */
EFI_DEVICE_PATH_PROTOCOL *path;
};
extern int efi_snp_hii_install ( struct efi_snp_device *snpdev );
extern void efi_snp_hii_uninstall ( struct efi_snp_device *snpdev );
extern struct efi_snp_device * find_snpdev ( EFI_HANDLE handle );
extern struct efi_snp_device * last_opened_snpdev ( void );
extern void efi_snp_set_claimed ( int claimed );
/**
* Claim network devices for use by iPXE
*
*/
static inline void efi_snp_claim ( void ) {
efi_snp_set_claimed ( 1 );
}
/**
* Release network devices for use via SNP
*
*/
static inline void efi_snp_release ( void ) {
efi_snp_set_claimed ( 0 );
}
#endif /* _IPXE_EFI_SNP_H */
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