/***********************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 incoming 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 incoming 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__ */
Name | Type | Size | Permission | Actions |
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cvmx-address.h | File | 9.15 KB | 0644 |
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cvmx-agl-defs.h | File | 70.87 KB | 0644 |
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cvmx-asm.h | File | 5.08 KB | 0644 |
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cvmx-asxx-defs.h | File | 17.73 KB | 0644 |
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cvmx-boot-vector.h | File | 1.57 KB | 0644 |
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cvmx-bootinfo.h | File | 13.44 KB | 0644 |
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cvmx-bootmem.h | File | 14.02 KB | 0644 |
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cvmx-ciu-defs.h | File | 214.08 KB | 0644 |
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cvmx-ciu2-defs.h | File | 173.44 KB | 0644 |
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cvmx-ciu3-defs.h | File | 10.71 KB | 0644 |
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cvmx-cmd-queue.h | File | 18.46 KB | 0644 |
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cvmx-config.h | File | 6.31 KB | 0644 |
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cvmx-coremask.h | File | 2.13 KB | 0644 |
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cvmx-dbg-defs.h | File | 2.73 KB | 0644 |
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cvmx-dpi-defs.h | File | 27 KB | 0644 |
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cvmx-fau.h | File | 18.21 KB | 0644 |
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cvmx-fpa-defs.h | File | 37.39 KB | 0644 |
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cvmx-fpa.h | File | 8.14 KB | 0644 |
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cvmx-gmxx-defs.h | File | 226.41 KB | 0644 |
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cvmx-gpio-defs.h | File | 13.3 KB | 0644 |
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cvmx-helper-board.h | File | 4.91 KB | 0644 |
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cvmx-helper-errata.h | File | 1.25 KB | 0644 |
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cvmx-helper-jtag.h | File | 1.49 KB | 0644 |
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cvmx-helper-loop.h | File | 1.93 KB | 0644 |
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cvmx-helper-npi.h | File | 1.91 KB | 0644 |
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cvmx-helper-rgmii.h | File | 3.45 KB | 0644 |
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cvmx-helper-sgmii.h | File | 3.3 KB | 0644 |
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cvmx-helper-spi.h | File | 2.71 KB | 0644 |
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cvmx-helper-util.h | File | 5.92 KB | 0644 |
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cvmx-helper-xaui.h | File | 3.29 KB | 0644 |
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cvmx-helper.h | File | 7 KB | 0644 |
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cvmx-iob-defs.h | File | 35.77 KB | 0644 |
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cvmx-ipd-defs.h | File | 56.09 KB | 0644 |
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cvmx-ipd.h | File | 10.45 KB | 0644 |
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cvmx-l2c-defs.h | File | 7.94 KB | 0644 |
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cvmx-l2c.h | File | 11.13 KB | 0644 |
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cvmx-l2d-defs.h | File | 1.9 KB | 0644 |
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cvmx-l2t-defs.h | File | 5.18 KB | 0644 |
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cvmx-led-defs.h | File | 7.7 KB | 0644 |
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cvmx-lmcx-defs.h | File | 88.35 KB | 0644 |
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cvmx-mio-defs.h | File | 141.79 KB | 0644 |
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cvmx-mixx-defs.h | File | 14.58 KB | 0644 |
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cvmx-npei-defs.h | File | 94.93 KB | 0644 |
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cvmx-npi-defs.h | File | 67.92 KB | 0644 |
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cvmx-packet.h | File | 2.07 KB | 0644 |
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cvmx-pci-defs.h | File | 56.08 KB | 0644 |
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cvmx-pciercx-defs.h | File | 11.23 KB | 0644 |
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cvmx-pcsx-defs.h | File | 33.81 KB | 0644 |
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cvmx-pcsxx-defs.h | File | 25.23 KB | 0644 |
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cvmx-pemx-defs.h | File | 20.62 KB | 0644 |
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cvmx-pescx-defs.h | File | 15.88 KB | 0644 |
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cvmx-pexp-defs.h | File | 16.64 KB | 0644 |
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cvmx-pip-defs.h | File | 87.19 KB | 0644 |
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cvmx-pip.h | File | 16.01 KB | 0644 |
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cvmx-pko-defs.h | File | 73.09 KB | 0644 |
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cvmx-pko.h | File | 19.17 KB | 0644 |
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cvmx-pow-defs.h | File | 33.51 KB | 0644 |
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cvmx-pow.h | File | 63.82 KB | 0644 |
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cvmx-rnm-defs.h | File | 6.03 KB | 0644 |
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cvmx-rst-defs.h | File | 7.27 KB | 0644 |
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cvmx-scratch.h | File | 3.78 KB | 0644 |
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cvmx-sli-defs.h | File | 3.95 KB | 0644 |
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cvmx-smix-defs.h | File | 11.01 KB | 0644 |
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cvmx-spi.h | File | 8.93 KB | 0644 |
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cvmx-spinlock.h | File | 6.24 KB | 0644 |
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cvmx-spxx-defs.h | File | 12.86 KB | 0644 |
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cvmx-sriox-defs.h | File | 42.13 KB | 0644 |
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cvmx-srxx-defs.h | File | 4.49 KB | 0644 |
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cvmx-stxx-defs.h | File | 10.42 KB | 0644 |
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cvmx-sysinfo.h | File | 3.95 KB | 0644 |
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cvmx-uctlx-defs.h | File | 12.78 KB | 0644 |
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cvmx-wqe.h | File | 17.06 KB | 0644 |
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cvmx.h | File | 13.85 KB | 0644 |
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octeon-feature.h | File | 6.38 KB | 0644 |
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octeon-model.h | File | 16.49 KB | 0644 |
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octeon.h | File | 12.26 KB | 0644 |
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pci-octeon.h | File | 1.65 KB | 0644 |
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