diff options
Diffstat (limited to 'drivers/staging/octeon/ethernet-util.h')
-rw-r--r-- | drivers/staging/octeon/ethernet-util.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/drivers/staging/octeon/ethernet-util.h b/drivers/staging/octeon/ethernet-util.h new file mode 100644 index 000000000000..2af83a12ca78 --- /dev/null +++ b/drivers/staging/octeon/ethernet-util.h @@ -0,0 +1,47 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * This file is based on code from OCTEON SDK by Cavium Networks. + * + * Copyright (c) 2003-2007 Cavium Networks + */ + +/** + * cvm_oct_get_buffer_ptr - convert packet data address to pointer + * @packet_ptr: Packet data hardware address + * + * Returns Packet buffer pointer + */ +static inline void *cvm_oct_get_buffer_ptr(union cvmx_buf_ptr packet_ptr) +{ + return cvmx_phys_to_ptr(((packet_ptr.s.addr >> 7) - packet_ptr.s.back) + << 7); +} + +/** + * INTERFACE - convert IPD port to logical interface + * @ipd_port: Port to check + * + * Returns Logical interface + */ +static inline int INTERFACE(int ipd_port) +{ + int interface; + + if (ipd_port == CVMX_PIP_NUM_INPUT_PORTS) + return 10; + interface = cvmx_helper_get_interface_num(ipd_port); + if (interface >= 0) + return interface; + panic("Illegal ipd_port %d passed to %s\n", ipd_port, __func__); +} + +/** + * INDEX - convert IPD/PKO port number to the port's interface index + * @ipd_port: Port to check + * + * Returns Index into interface port list + */ +static inline int INDEX(int ipd_port) +{ + return cvmx_helper_get_interface_index_num(ipd_port); +} |