gpxe: delete long since obsolete snapshot of gPXE

gPXE has been deprecated in favor of iPXE for many, many years now.
It is much better than users get it directly from the iPXE project,
since we should no longer need any special modifications for Syslinux
use.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 0 insertions, 312 deletions

diff --git a/gpxe/src/doc/pxe_extensions b/gpxe/src/doc/pxe_extensions
deleted file mode 100644
index 8ff14a95..00000000
--- a/gpxe/src/doc/pxe_extensions
+++ /dev/null
@@ -1,312 +0,0 @@
-FILE OPEN
-
-Op-Code:	PXENV_FILE_OPEN (00e0h)
-
-Input:		Far pointer to a t_PXENV_FILE_OPEN parameter structure
-		that has been initialised by the caller.
-
-Output:		PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be
-		returned in AX.  The status field in the parameter
-		structure must be set to one of the values represented
-		by the PXENV_STATUS_xxx constants.
-
-Description:	Opens a file specified by a URL for reading.  Multiple
-		files may be opened and used concurrently.
-
-
-typedef struct s_PXENV_FILE_OPEN {
-	PXENV_STATUS Status;
-	UINT16 FileHandle;
-	SEGOFF16 FileName;
-	UINT32 Reserved;
-} t_PXENV_FILE_OPEN;
-
-
-Set before calling API service:
-
-FileName:	URL of file to be opened.  Null terminated.
-
-Reserved:	Must be zero.
-
-
-Returned from API service:
-
-FileHandle:	Handle for use in subsequent PXE FILE API calls.
-
-Status:		See PXENV_STATUS_xxx constants.
-
-
-
-
-FILE CLOSE
-
-Op-Code:	PXENV_FILE_CLOSE (00e1h)
-
-Input:		Far pointer to a t_PXENV_FILE_CLOSE parameter structure
-		that has been initialised by the caller.
-
-Output:		PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be
-		returned in AX.  The status field in the parameter
-		structure must be set to one of the values represented
-		by the PXENV_STATUS_xxx constants.
-
-Description:	Closes a previously opened file.
-
-
-typedef struct s_PXENV_FILE_CLOSE {
-	PXENV_STATUS Status;
-	UINT16 FileHandle;
-} t_PXENV_FILE_CLOSE;
-
-
-Set before calling API service:
-
-FileHandle:	Handle obtained when file was opened.
-
-
-Returned from API service:
-
-Status:		See PXENV_STATUS_xxx constants.
-
-
-
-
-FILE SELECT
-
-Op-Code:	PXENV_FILE_SELECT (00e2h)
-
-Input:		Far pointer to a t_PXENV_FILE_SELECT parameter structure
-		that has been initialised by the caller.
-
-Output:		PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be
-		returned in AX.  The status field in the parameter
-		structure must be set to one of the values represented
-		by the PXENV_STATUS_xxx constants.
-
-Description:	Check a previously opened file's readiness for I/O.
-
-
-typedef struct s_PXENV_FILE_SELECT {
-	PXENV_STATUS Status;
-	UINT16 FileHandle;
-	UINT16 Ready;
-#define RDY_READ 0x0001
-} t_PXENV_FILE_SELECT;
-
-
-Set before calling API service:
-
-FileHandle:	Handle obtained when file was opened.
-
-
-Returned from API service:
-
-Ready:		Indication of readiness.  This can be zero, or more,
-		of the RDY_xxx constants.  Multiple values are
-		arithmetically or-ed together.
-
-Status:		See PXENV_STATUS_xxx constants.
-
-
-
-
-FILE READ
-
-Op-Code:	PXENV_FILE_READ (00e3h)
-
-Input:		Far pointer to a t_PXENV_FILE_READ parameter structure
-		that has been initialised by the caller.
-
-Output:		PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be
-		returned in AX.  The status field in the parameter
-		structure must be set to one of the values represented
-		by the PXENV_STATUS_xxx constants.
-
-		This API function is non-blocking.  PXENV_EXIT_SUCCESS
-		and PXENV_STATUS_SUCCESS is returned if a data block
-		has been transferred into the caller's buffer.
-		PXENV_EXIT_FAILURE and PXENV_STATUS_TFTP_OPEN is
-		returned if no data is available to transfer; any
-		other status code reflects an error.
-
-Description:	Read from a previously opened file.
-
-
-typedef struct s_PXENV_FILE_READ {
-	PXENV_STATUS Status;
-	UINT16 FileHandle;
-	UINT16 BufferSize;
-	SEGOFF16 Buffer;
-} t_PXENV_FILE_READ;
-
-
-Set before calling API service:
-
-FileHandle:	Handle obtained when file was opened.
-
-BufferSize:	Maximum number of data bytes that can be copied into
-		Buffer.
-
-Buffer:		Segment:Offset address of data buffer.
-
-
-Returned from API service:
-
-BufferSize:	Number of bytes written to the data buffer.  End of
-		file if this is zero.
-
-Status:		See PXENV_STATUS_xxx constants.
-
-
-
-
-GET FILE SIZE
-
-Op-Code:	PXENV_GET_FILE_SIZE (00e4h)
-
-Input:		Far pointer to a t_PXENV_GET_FILE_SIZE parameter
-		structure that has been initialised by the caller.
-
-Output:		PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be
-		returned in AX.  The status field in the parameter
-		structure must be set to one of the values represented
-		by the PXENV_STATUS_xxx constants.
-
-Description:	Determine size of a previously opened file.
-
-
-typedef struct s_PXENV_GET_FILE_SIZE {
-	PXENV_STATUS Status;
-	UINT16 FileHandle;
-	UINT32 FileSize;
-} t_PXENV_GET_FILE_SIZE;
-
-
-Set before calling API service:
-
-FileHandle:	Handle obtained when file was opened.
-
-
-Returned from API service:
-
-FileSize:	Size of the file in bytes.
-
-Status:		See PXENV_STATUS_xxx constants.
-
-
-
-
-FILE EXEC
-
-Op-Code:	PXENV_FILE_EXEC (00e5h)
-
-Input:		Far pointer to a t_PXENV_FILE_EXEC parameter
-		structure that has been initialized by the caller.
-
-Output:		PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be
-		returned in AX.  The Status field in the parameter
-		structure must be set to one of the values represented
-		by the PXENV_STATUS_xxx constants.
-
-Description:	Execute a gPXE command.
-
-typedef struct s_PXENV_FILE_EXEC {
-        PXENV_STATUS_t Status;
-        SEGOFF16_t Command;
-} t_PXENV_FILE_EXEC;
-
-
-Set before calling API service:
-
-Command:	Command to execute.  Null terminated.
-
-
-Returned from API service:
-
-Status:		See PXENV_STATUS_xxx constants.
-
-
-
-
-FILE API CHECK
-
-Op-Code:	PXENV_FILE_API_CHECK (00e6h)
-
-Input:		Far pointer to a t_PXENV_FILE_CHECK_API parameter
-		structure that has been initialized by the caller.
-
-		On entry, the Magic field should contain the number
-		0x91d447b2 or the call will fail.
-
-Output:		PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be
-		returned in AX.  The Status field in the parameter
-		structure must be set to one of the values represented
-		by the PXENV_STATUS_xxx constants.
-
-		If this API is present and the Magic field contains the
-		proper value on entry, AX will contain PXENV_EXIT_SUCCESS,
-		the Status field PXENV_STATUS_SUCCESS, and the Magic field
-		the number 0xe9c17b20.  Any other combination should be
-		considered a failure.
-
-Description:	Detect presence of this API.
-
-
-typedef struct s_PXENV_FILE_CHECK_API {
-	PXENV_STATUS Status;
-	UINT16 Size;
-	UINT32 Magic;
-	UINT32 Provider;
-	UINT32 APIMask;
-	UINT32 Flags;
-} t_PXENV_FILE_CHECK_API;
-
-Set before calling API service:
-
-Size:		Set to sizeof(t_PXENV_FILE_CHECK_API) (20).
-Magic:		Set to 0x91d447b2.
-
-
-Returned from API service:
-
-Size:		Set to the number of bytes filled in (20).
-Magic:		Set to 0xe9c17b20.
-Provider:	Set to 0x45585067 ("gPXE").  Another implementation of this
-		API can use another value, e.g. to indicate a different
-		command set supported by FILE EXEC.
-APIMask:	Bitmask of supported API functions (one bit for each function
-		in the range 00e0h to 00ffh).
-Flags:		Set to zero, reserved for future use.
-
-
-
-
-FILE EXIT HOOK
-
-Op-Code:	PXENV_FILE_EXIT_HOOK (00e7h)
-
-Input:		Far pointer to a t_PXENV_FILE_EXIT_HOOK parameter
-		structure that has been initialized by the caller.
-
-Output:		PXENV_EXIT_SUCCESS or PXENV_EXIT_FAILURE must be
-		returned in AX.  The Status field in the parameter
-		structure must be set to one of the values represented
-		by the PXENV_STATUS_xxx constants.
-
-Description:	Modify the exit path to jump to the specified code.
-		Only valid for pxeprefix-based builds.
-
-typedef struct s_PXENV_FILE_EXIT_HOOK {
-        PXENV_STATUS_t Status;
-        SEGOFF16_t Hook;
-} t_PXENV_FILE_EXIT_HOOK;
-
-
-Set before calling API service:
-
-Hook:		The SEG16:OFF16 of the code to jump to.
-
-
-Returned from API service:
-
-Status:		See PXENV_STATUS_xxx constants.