diff options
Diffstat (limited to 'drivers/staging/octeon/cvmx-helper-util.h')
| -rw-r--r-- | drivers/staging/octeon/cvmx-helper-util.h | 215 |
1 files changed, 0 insertions, 215 deletions
diff --git a/drivers/staging/octeon/cvmx-helper-util.h b/drivers/staging/octeon/cvmx-helper-util.h deleted file mode 100644 index 6a6e52fc22c1..000000000000 --- a/drivers/staging/octeon/cvmx-helper-util.h +++ /dev/null @@ -1,215 +0,0 @@ -/***********************license start*************** - * Author: Cavium Networks - * - * Contact: support@caviumnetworks.com - * This file is part of the OCTEON SDK - * - * Copyright (c) 2003-2008 Cavium Networks - * - * This file is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License, Version 2, as - * published by the Free Software Foundation. - * - * This file is distributed in the hope that it will be useful, but - * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty - * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or - * NONINFRINGEMENT. See the GNU General Public License for more - * details. - * - * You should have received a copy of the GNU General Public License - * along with this file; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - * or visit http://www.gnu.org/licenses/. - * - * This file may also be available under a different license from Cavium. - * Contact Cavium Networks for more information - ***********************license end**************************************/ - -/* - * - * Small helper utilities. - * - */ - -#ifndef __CVMX_HELPER_UTIL_H__ -#define __CVMX_HELPER_UTIL_H__ - -/** - * Convert a interface mode into a human readable string - * - * @mode: Mode to convert - * - * Returns String - */ -extern const char - *cvmx_helper_interface_mode_to_string(cvmx_helper_interface_mode_t mode); - -/** - * Debug routine to dump the packet structure to the console - * - * @work: Work queue entry containing the packet to dump - * Returns - */ -extern int cvmx_helper_dump_packet(cvmx_wqe_t *work); - -/** - * Setup Random Early Drop on a specific input queue - * - * @queue: Input queue to setup RED on (0-7) - * @pass_thresh: - * Packets will begin slowly dropping when there are less than - * this many packet buffers free in FPA 0. - * @drop_thresh: - * All incomming packets will be dropped when there are less - * than this many free packet buffers in FPA 0. - * Returns Zero on success. Negative on failure - */ -extern int cvmx_helper_setup_red_queue(int queue, int pass_thresh, - int drop_thresh); - -/** - * Setup Random Early Drop to automatically begin dropping packets. - * - * @pass_thresh: - * Packets will begin slowly dropping when there are less than - * this many packet buffers free in FPA 0. - * @drop_thresh: - * All incomming packets will be dropped when there are less - * than this many free packet buffers in FPA 0. - * Returns Zero on success. Negative on failure - */ -extern int cvmx_helper_setup_red(int pass_thresh, int drop_thresh); - -/** - * Get the version of the CVMX libraries. - * - * Returns Version string. Note this buffer is allocated statically - * and will be shared by all callers. - */ -extern const char *cvmx_helper_get_version(void); - -/** - * Setup the common GMX settings that determine the number of - * ports. These setting apply to almost all configurations of all - * chips. - * - * @interface: Interface to configure - * @num_ports: Number of ports on the interface - * - * Returns Zero on success, negative on failure - */ -extern int __cvmx_helper_setup_gmx(int interface, int num_ports); - -/** - * Returns the IPD/PKO port number for a port on the given - * interface. - * - * @interface: Interface to use - * @port: Port on the interface - * - * Returns IPD/PKO port number - */ -extern int cvmx_helper_get_ipd_port(int interface, int port); - -/** - * Returns the IPD/PKO port number for the first port on the given - * interface. - * - * @interface: Interface to use - * - * Returns IPD/PKO port number - */ -static inline int cvmx_helper_get_first_ipd_port(int interface) -{ - return cvmx_helper_get_ipd_port(interface, 0); -} - -/** - * Returns the IPD/PKO port number for the last port on the given - * interface. - * - * @interface: Interface to use - * - * Returns IPD/PKO port number - */ -static inline int cvmx_helper_get_last_ipd_port(int interface) -{ - extern int cvmx_helper_ports_on_interface(int interface); - - return cvmx_helper_get_first_ipd_port(interface) + - cvmx_helper_ports_on_interface(interface) - 1; -} - -/** - * Free the packet buffers contained in a work queue entry. - * The work queue entry is not freed. - * - * @work: Work queue entry with packet to free - */ -static inline void cvmx_helper_free_packet_data(cvmx_wqe_t *work) -{ - uint64_t number_buffers; - union cvmx_buf_ptr buffer_ptr; - union cvmx_buf_ptr next_buffer_ptr; - uint64_t start_of_buffer; - - number_buffers = work->word2.s.bufs; - if (number_buffers == 0) - return; - buffer_ptr = work->packet_ptr; - - /* - * Since the number of buffers is not zero, we know this is - * not a dynamic short packet. We need to check if it is a - * packet received with IPD_CTL_STATUS[NO_WPTR]. If this is - * true, we need to free all buffers except for the first - * one. The caller doesn't expect their WQE pointer to be - * freed - */ - start_of_buffer = ((buffer_ptr.s.addr >> 7) - buffer_ptr.s.back) << 7; - if (cvmx_ptr_to_phys(work) == start_of_buffer) { - next_buffer_ptr = - *(union cvmx_buf_ptr *) cvmx_phys_to_ptr(buffer_ptr.s.addr - 8); - buffer_ptr = next_buffer_ptr; - number_buffers--; - } - - while (number_buffers--) { - /* - * Remember the back pointer is in cache lines, not - * 64bit words - */ - start_of_buffer = - ((buffer_ptr.s.addr >> 7) - buffer_ptr.s.back) << 7; - /* - * Read pointer to next buffer before we free the - * current buffer. - */ - next_buffer_ptr = - *(union cvmx_buf_ptr *) cvmx_phys_to_ptr(buffer_ptr.s.addr - 8); - cvmx_fpa_free(cvmx_phys_to_ptr(start_of_buffer), - buffer_ptr.s.pool, 0); - buffer_ptr = next_buffer_ptr; - } -} - -/** - * Returns the interface number for an IPD/PKO port number. - * - * @ipd_port: IPD/PKO port number - * - * Returns Interface number - */ -extern int cvmx_helper_get_interface_num(int ipd_port); - -/** - * Returns the interface index number for an IPD/PKO port - * number. - * - * @ipd_port: IPD/PKO port number - * - * Returns Interface index number - */ -extern int cvmx_helper_get_interface_index_num(int ipd_port); - -#endif /* __CVMX_HELPER_H__ */ |