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mips: octeon: Add cvmx-pko3-queue.c
Import cvmx-pko3-queue.c from 2013 U-Boot. It will be used by the later added drivers to support networking on the MIPS Octeon II / III platforms. Signed-off-by: Aaron Williams <awilliams@marvell.com> Signed-off-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Aaron Williams
committed by
Stefan Roese
Stefan Roese
parent
0f64057b4f
commit
e5ad79099c
879
arch/mips/mach-octeon/cvmx-pko3-queue.c
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879
arch/mips/mach-octeon/cvmx-pko3-queue.c
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@@ -0,0 +1,879 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2018-2022 Marvell International Ltd.
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*/
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#include <errno.h>
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#include <log.h>
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#include <time.h>
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#include <linux/delay.h>
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#include <mach/cvmx-regs.h>
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#include <mach/cvmx-csr.h>
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#include <mach/cvmx-bootmem.h>
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#include <mach/octeon-model.h>
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#include <mach/cvmx-fuse.h>
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#include <mach/octeon-feature.h>
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#include <mach/cvmx-qlm.h>
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#include <mach/octeon_qlm.h>
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#include <mach/cvmx-pcie.h>
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#include <mach/cvmx-coremask.h>
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#include <mach/cvmx-agl-defs.h>
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#include <mach/cvmx-bgxx-defs.h>
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#include <mach/cvmx-ciu-defs.h>
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#include <mach/cvmx-gmxx-defs.h>
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#include <mach/cvmx-gserx-defs.h>
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#include <mach/cvmx-ilk-defs.h>
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#include <mach/cvmx-ipd-defs.h>
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#include <mach/cvmx-pcsx-defs.h>
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#include <mach/cvmx-pcsxx-defs.h>
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#include <mach/cvmx-pki-defs.h>
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#include <mach/cvmx-pko-defs.h>
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#include <mach/cvmx-xcv-defs.h>
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#include <mach/cvmx-hwpko.h>
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#include <mach/cvmx-ilk.h>
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#include <mach/cvmx-pki.h>
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#include <mach/cvmx-pko3.h>
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#include <mach/cvmx-pko3-queue.h>
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#include <mach/cvmx-pko3-resources.h>
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#include <mach/cvmx-helper.h>
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#include <mach/cvmx-helper-board.h>
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#include <mach/cvmx-helper-cfg.h>
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#include <mach/cvmx-helper-bgx.h>
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#include <mach/cvmx-helper-cfg.h>
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#include <mach/cvmx-helper-util.h>
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#include <mach/cvmx-helper-pki.h>
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/* Smalles Round-Robin quantum to use +1 */
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#define CVMX_PKO3_RR_QUANTUM_MIN 0x10
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static int debug; /* 1 for basic, 2 for detailed trace */
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struct cvmx_pko3_dq {
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unsigned dq_count : 6; /* Number of descriptor queues */
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unsigned dq_base : 10; /* Descriptor queue start number */
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#define CVMX_PKO3_SWIZZLE_IPD 0x0
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};
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/*
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* @INTERNAL
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* Descriptor Queue to IPD port mapping table.
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*
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* This pointer is per-core, contains the virtual address
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* of a global named block which has 2^12 entries per each
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* possible node.
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*/
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struct cvmx_pko3_dq *__cvmx_pko3_dq_table;
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int cvmx_pko3_get_queue_base(int ipd_port)
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{
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struct cvmx_pko3_dq *dq_table;
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int ret = -1;
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unsigned int i;
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struct cvmx_xport xp = cvmx_helper_ipd_port_to_xport(ipd_port);
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/* get per-node table */
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if (cvmx_unlikely(!__cvmx_pko3_dq_table))
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__cvmx_pko3_dq_table_setup();
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i = CVMX_PKO3_SWIZZLE_IPD ^ xp.port;
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/* get per-node table */
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dq_table = __cvmx_pko3_dq_table + CVMX_PKO3_IPD_NUM_MAX * xp.node;
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if (cvmx_likely(dq_table[i].dq_count > 0))
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ret = xp.node << 10 | dq_table[i].dq_base;
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else if (debug)
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cvmx_printf("ERROR: %s: no queues for ipd_port=%#x\n", __func__,
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ipd_port);
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return ret;
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}
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int cvmx_pko3_get_queue_num(int ipd_port)
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{
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struct cvmx_pko3_dq *dq_table;
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int ret = -1;
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unsigned int i;
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struct cvmx_xport xp = cvmx_helper_ipd_port_to_xport(ipd_port);
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/* get per-node table */
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if (cvmx_unlikely(!__cvmx_pko3_dq_table))
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__cvmx_pko3_dq_table_setup();
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i = CVMX_PKO3_SWIZZLE_IPD ^ xp.port;
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/* get per-node table */
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dq_table = __cvmx_pko3_dq_table + CVMX_PKO3_IPD_NUM_MAX * xp.node;
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if (cvmx_likely(dq_table[i].dq_count > 0))
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ret = dq_table[i].dq_count;
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else if (debug)
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debug("ERROR: %s: no queues for ipd_port=%#x\n", __func__,
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ipd_port);
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return ret;
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}
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/**
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* @INTERNAL
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*
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* Initialize port/dq table contents
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*/
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static void __cvmx_pko3_dq_table_init(void *ptr)
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{
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unsigned int size = sizeof(struct cvmx_pko3_dq) *
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CVMX_PKO3_IPD_NUM_MAX * CVMX_MAX_NODES;
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memset(ptr, 0, size);
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}
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/**
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* @INTERNAL
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*
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* Find or allocate global port/dq map table
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* which is a named table, contains entries for
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* all possible OCI nodes.
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*
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* The table global pointer is stored in core-local variable
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* so that every core will call this function once, on first use.
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*/
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int __cvmx_pko3_dq_table_setup(void)
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{
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void *ptr;
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ptr = cvmx_bootmem_alloc_named_range_once(
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/* size */
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sizeof(struct cvmx_pko3_dq) * CVMX_PKO3_IPD_NUM_MAX *
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CVMX_MAX_NODES,
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/* min_addr, max_addr, align */
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0ull, 0ull, sizeof(struct cvmx_pko3_dq),
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/* name */
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"cvmx_pko3_global_dq_table", __cvmx_pko3_dq_table_init);
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if (debug)
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debug("%s: dq_table_ptr=%p\n", __func__, ptr);
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if (!ptr)
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return -1;
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__cvmx_pko3_dq_table = ptr;
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return 0;
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}
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/*
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* @INTERNAL
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* Register a range of Descriptor Queues with an interface port
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*
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* This function populates the DQ-to-IPD translation table
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* used by the application to retrieve the DQ range (typically ordered
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* by priority) for a given IPD-port, which is either a physical port,
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* or a channel on a channelized interface (i.e. ILK).
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*
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* @param xiface is the physical interface number
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* @param index is either a physical port on an interface
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* or a channel of an ILK interface
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* @param dq_base is the first Descriptor Queue number in a consecutive range
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* @param dq_count is the number of consecutive Descriptor Queues leading
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* the same channel or port.
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*
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* Only a consecutive range of Descriptor Queues can be associated with any
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* given channel/port, and usually they are ordered from most to least
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* in terms of scheduling priority.
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*
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* Note: thus function only populates the node-local translation table.
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* NOTE: This function would be cleaner if it had a single ipd_port argument
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*
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* @returns 0 on success, -1 on failure.
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*/
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int __cvmx_pko3_ipd_dq_register(int xiface, int index, unsigned int dq_base,
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unsigned int dq_count)
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{
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struct cvmx_pko3_dq *dq_table;
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int ipd_port;
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unsigned int i;
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struct cvmx_xiface xi = cvmx_helper_xiface_to_node_interface(xiface);
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struct cvmx_xport xp;
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if (__cvmx_helper_xiface_is_null(xiface)) {
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ipd_port = cvmx_helper_node_to_ipd_port(xi.node,
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CVMX_PKO3_IPD_PORT_NULL);
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} else {
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int p;
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p = cvmx_helper_get_ipd_port(xiface, index);
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if (p < 0) {
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cvmx_printf("ERROR: %s: xiface %#x has no IPD port\n",
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__func__, xiface);
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return -1;
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}
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ipd_port = p;
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}
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xp = cvmx_helper_ipd_port_to_xport(ipd_port);
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i = CVMX_PKO3_SWIZZLE_IPD ^ xp.port;
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/* get per-node table */
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if (!__cvmx_pko3_dq_table)
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__cvmx_pko3_dq_table_setup();
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dq_table = __cvmx_pko3_dq_table + CVMX_PKO3_IPD_NUM_MAX * xi.node;
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if (debug)
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debug("%s: ipd_port=%#x ix=%#x dq %u cnt %u\n", __func__,
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ipd_port, i, dq_base, dq_count);
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/* Check the IPD port has not already been configured */
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if (dq_table[i].dq_count > 0) {
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cvmx_printf("%s: ERROR: IPD %#x already registered\n", __func__,
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ipd_port);
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return -1;
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}
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/* Store DQ# range in the queue lookup table */
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dq_table[i].dq_base = dq_base;
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dq_table[i].dq_count = dq_count;
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return 0;
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}
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/*
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* @INTERNAL
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* Convert normal CHAN_E (i.e. IPD port) value to compressed channel form
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* that is used to populate PKO_LUT.
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*
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* Note: This code may be model specific.
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*/
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static int cvmx_pko3_chan_2_xchan(uint16_t ipd_port)
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{
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u16 xchan;
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u8 off;
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static const u8 *xchan_base;
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static const u8 xchan_base_cn78xx[16] = {
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/* IPD 0x000 */ 0x3c0 >> 4, /* LBK */
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/* IPD 0x100 */ 0x380 >> 4, /* DPI */
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/* IPD 0x200 */ 0xfff >> 4, /* not used */
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/* IPD 0x300 */ 0xfff >> 4, /* not used */
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/* IPD 0x400 */ 0x000 >> 4, /* ILK0 */
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/* IPD 0x500 */ 0x100 >> 4, /* ILK1 */
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/* IPD 0x600 */ 0xfff >> 4, /* not used */
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/* IPD 0x700 */ 0xfff >> 4, /* not used */
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/* IPD 0x800 */ 0x200 >> 4, /* BGX0 */
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/* IPD 0x900 */ 0x240 >> 4, /* BGX1 */
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/* IPD 0xa00 */ 0x280 >> 4, /* BGX2 */
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/* IPD 0xb00 */ 0x2c0 >> 4, /* BGX3 */
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/* IPD 0xc00 */ 0x300 >> 4, /* BGX4 */
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/* IPD 0xd00 */ 0x340 >> 4, /* BGX5 */
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/* IPD 0xe00 */ 0xfff >> 4, /* not used */
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/* IPD 0xf00 */ 0xfff >> 4 /* not used */
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};
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static const u8 xchan_base_cn73xx[16] = {
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/* IPD 0x000 */ 0x0c0 >> 4, /* LBK */
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/* IPD 0x100 */ 0x100 >> 4, /* DPI */
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/* IPD 0x200 */ 0xfff >> 4, /* not used */
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/* IPD 0x300 */ 0xfff >> 4, /* not used */
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/* IPD 0x400 */ 0xfff >> 4, /* not used */
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/* IPD 0x500 */ 0xfff >> 4, /* not used */
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/* IPD 0x600 */ 0xfff >> 4, /* not used */
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/* IPD 0x700 */ 0xfff >> 4, /* not used */
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/* IPD 0x800 */ 0x000 >> 4, /* BGX0 */
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/* IPD 0x900 */ 0x040 >> 4, /* BGX1 */
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/* IPD 0xa00 */ 0x080 >> 4, /* BGX2 */
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/* IPD 0xb00 */ 0xfff >> 4, /* not used */
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/* IPD 0xc00 */ 0xfff >> 4, /* not used */
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/* IPD 0xd00 */ 0xfff >> 4, /* not used */
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/* IPD 0xe00 */ 0xfff >> 4, /* not used */
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/* IPD 0xf00 */ 0xfff >> 4 /* not used */
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};
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static const u8 xchan_base_cn75xx[16] = {
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/* IPD 0x000 */ 0x040 >> 4, /* LBK */
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/* IPD 0x100 */ 0x080 >> 4, /* DPI */
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/* IPD 0x200 */ 0xeee >> 4, /* SRIO0 noop */
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/* IPD 0x300 */ 0xfff >> 4, /* not used */
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/* IPD 0x400 */ 0xfff >> 4, /* not used */
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/* IPD 0x500 */ 0xfff >> 4, /* not used */
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/* IPD 0x600 */ 0xfff >> 4, /* not used */
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/* IPD 0x700 */ 0xfff >> 4, /* not used */
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/* IPD 0x800 */ 0x000 >> 4, /* BGX0 */
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/* IPD 0x900 */ 0xfff >> 4, /* not used */
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/* IPD 0xa00 */ 0xfff >> 4, /* not used */
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/* IPD 0xb00 */ 0xfff >> 4, /* not used */
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/* IPD 0xc00 */ 0xfff >> 4, /* not used */
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/* IPD 0xd00 */ 0xfff >> 4, /* not used */
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/* IPD 0xe00 */ 0xfff >> 4, /* not used */
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/* IPD 0xf00 */ 0xfff >> 4 /* not used */
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};
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if (OCTEON_IS_MODEL(OCTEON_CN73XX))
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xchan_base = xchan_base_cn73xx;
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if (OCTEON_IS_MODEL(OCTEON_CNF75XX))
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xchan_base = xchan_base_cn75xx;
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if (OCTEON_IS_MODEL(OCTEON_CN78XX))
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xchan_base = xchan_base_cn78xx;
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if (!xchan_base)
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return -1;
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xchan = ipd_port >> 8;
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/* ILKx, DPI has 8 bits logical channels, others just 6 */
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if (((xchan & 0xfe) == 0x04) || xchan == 0x01)
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off = ipd_port & 0xff;
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else
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off = ipd_port & 0x3f;
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xchan = xchan_base[xchan & 0xf];
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if (xchan == 0xff)
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return -1; /* Invalid IPD_PORT */
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else if (xchan == 0xee)
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return -2; /* LUT not used */
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else
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return (xchan << 4) | off;
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}
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/*
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* Map channel number in PKO
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*
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* @param node is to specify the node to which this configuration is applied.
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* @param pq_num specifies the Port Queue (i.e. L1) queue number.
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* @param l2_l3_q_num specifies L2/L3 queue number.
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* @param channel specifies the channel number to map to the queue.
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*
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* The channel assignment applies to L2 or L3 Shaper Queues depending
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* on the setting of channel credit level.
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*
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* @return returns none.
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*/
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void cvmx_pko3_map_channel(unsigned int node, unsigned int pq_num,
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unsigned int l2_l3_q_num, uint16_t channel)
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{
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union cvmx_pko_l3_l2_sqx_channel sqx_channel;
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cvmx_pko_lutx_t lutx;
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int xchan;
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sqx_channel.u64 =
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csr_rd_node(node, CVMX_PKO_L3_L2_SQX_CHANNEL(l2_l3_q_num));
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sqx_channel.s.cc_channel = channel;
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csr_wr_node(node, CVMX_PKO_L3_L2_SQX_CHANNEL(l2_l3_q_num),
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sqx_channel.u64);
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/* Convert CHAN_E into compressed channel */
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xchan = cvmx_pko3_chan_2_xchan(channel);
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if (debug)
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debug("%s: ipd_port=%#x xchan=%#x\n", __func__, channel, xchan);
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if (xchan < 0) {
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if (xchan == -1)
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cvmx_printf("%s: ERROR: channel %#x not recognized\n",
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__func__, channel);
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return;
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}
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lutx.u64 = 0;
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lutx.s.valid = 1;
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lutx.s.pq_idx = pq_num;
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lutx.s.queue_number = l2_l3_q_num;
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csr_wr_node(node, CVMX_PKO_LUTX(xchan), lutx.u64);
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if (debug)
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debug("%s: channel %#x (compressed=%#x) mapped L2/L3 SQ=%u, PQ=%u\n",
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__func__, channel, xchan, l2_l3_q_num, pq_num);
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}
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/*
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* @INTERNAL
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* This function configures port queue scheduling and topology parameters
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* in hardware.
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*
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* @param node is to specify the node to which this configuration is applied.
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* @param port_queue is the port queue number to be configured.
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* @param mac_num is the mac number of the mac that will be tied to this port_queue.
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*/
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static void cvmx_pko_configure_port_queue(int node, int port_queue, int mac_num)
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{
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cvmx_pko_l1_sqx_topology_t pko_l1_topology;
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cvmx_pko_l1_sqx_shape_t pko_l1_shape;
|
||||
cvmx_pko_l1_sqx_link_t pko_l1_link;
|
||||
|
||||
pko_l1_topology.u64 = 0;
|
||||
pko_l1_topology.s.link = mac_num;
|
||||
csr_wr_node(node, CVMX_PKO_L1_SQX_TOPOLOGY(port_queue),
|
||||
pko_l1_topology.u64);
|
||||
|
||||
pko_l1_shape.u64 = 0;
|
||||
pko_l1_shape.s.link = mac_num;
|
||||
csr_wr_node(node, CVMX_PKO_L1_SQX_SHAPE(port_queue), pko_l1_shape.u64);
|
||||
|
||||
pko_l1_link.u64 = 0;
|
||||
pko_l1_link.s.link = mac_num;
|
||||
csr_wr_node(node, CVMX_PKO_L1_SQX_LINK(port_queue), pko_l1_link.u64);
|
||||
}
|
||||
|
||||
/*
|
||||
* @INTERNAL
|
||||
* This function configures level 2 queues scheduling and topology parameters
|
||||
* in hardware.
|
||||
*
|
||||
* @param node is to specify the node to which this configuration is applied.
|
||||
* @param queue is the level3 queue number to be configured.
|
||||
* @param parent_queue is the parent queue at next level for this l3 queue.
|
||||
* @param prio is this queue's priority in parent's scheduler.
|
||||
* @param rr_quantum is this queue's round robin quantum value.
|
||||
* @param child_base is the first child queue number in the static prioriy children.
|
||||
* @param child_rr_prio is the round robin children priority.
|
||||
*/
|
||||
static void cvmx_pko_configure_l2_queue(int node, int queue, int parent_queue,
|
||||
int prio, int rr_quantum,
|
||||
int child_base, int child_rr_prio)
|
||||
{
|
||||
cvmx_pko_l2_sqx_schedule_t pko_sq_sched;
|
||||
cvmx_pko_l2_sqx_topology_t pko_child_topology;
|
||||
cvmx_pko_l1_sqx_topology_t pko_parent_topology;
|
||||
|
||||
/* parent topology configuration */
|
||||
pko_parent_topology.u64 =
|
||||
csr_rd_node(node, CVMX_PKO_L1_SQX_TOPOLOGY(parent_queue));
|
||||
pko_parent_topology.s.prio_anchor = child_base;
|
||||
pko_parent_topology.s.rr_prio = child_rr_prio;
|
||||
csr_wr_node(node, CVMX_PKO_L1_SQX_TOPOLOGY(parent_queue),
|
||||
pko_parent_topology.u64);
|
||||
|
||||
if (debug > 1)
|
||||
debug("CVMX_PKO_L1_SQX_TOPOLOGY(%u): PRIO_ANCHOR=%u PARENT=%u\n",
|
||||
parent_queue, pko_parent_topology.s.prio_anchor,
|
||||
pko_parent_topology.s.link);
|
||||
|
||||
/* scheduler configuration for this sq in the parent queue */
|
||||
pko_sq_sched.u64 = 0;
|
||||
pko_sq_sched.s.prio = prio;
|
||||
pko_sq_sched.s.rr_quantum = rr_quantum;
|
||||
csr_wr_node(node, CVMX_PKO_L2_SQX_SCHEDULE(queue), pko_sq_sched.u64);
|
||||
|
||||
/* child topology configuration */
|
||||
pko_child_topology.u64 = 0;
|
||||
pko_child_topology.s.parent = parent_queue;
|
||||
csr_wr_node(node, CVMX_PKO_L2_SQX_TOPOLOGY(queue),
|
||||
pko_child_topology.u64);
|
||||
}
|
||||
|
||||
/*
|
||||
* @INTERNAL
|
||||
* This function configures level 3 queues scheduling and topology parameters
|
||||
* in hardware.
|
||||
*
|
||||
* @param node is to specify the node to which this configuration is applied.
|
||||
* @param queue is the level3 queue number to be configured.
|
||||
* @param parent_queue is the parent queue at next level for this l3 queue.
|
||||
* @param prio is this queue's priority in parent's scheduler.
|
||||
* @param rr_quantum is this queue's round robin quantum value.
|
||||
* @param child_base is the first child queue number in the static prioriy children.
|
||||
* @param child_rr_prio is the round robin children priority.
|
||||
*/
|
||||
static void cvmx_pko_configure_l3_queue(int node, int queue, int parent_queue,
|
||||
int prio, int rr_quantum,
|
||||
int child_base, int child_rr_prio)
|
||||
{
|
||||
cvmx_pko_l3_sqx_schedule_t pko_sq_sched;
|
||||
cvmx_pko_l3_sqx_topology_t pko_child_topology;
|
||||
cvmx_pko_l2_sqx_topology_t pko_parent_topology;
|
||||
|
||||
/* parent topology configuration */
|
||||
pko_parent_topology.u64 =
|
||||
csr_rd_node(node, CVMX_PKO_L2_SQX_TOPOLOGY(parent_queue));
|
||||
pko_parent_topology.s.prio_anchor = child_base;
|
||||
pko_parent_topology.s.rr_prio = child_rr_prio;
|
||||
csr_wr_node(node, CVMX_PKO_L2_SQX_TOPOLOGY(parent_queue),
|
||||
pko_parent_topology.u64);
|
||||
|
||||
if (debug > 1)
|
||||
debug("CVMX_PKO_L2_SQX_TOPOLOGY(%u): PRIO_ANCHOR=%u PARENT=%u\n",
|
||||
parent_queue, pko_parent_topology.s.prio_anchor,
|
||||
pko_parent_topology.s.parent);
|
||||
|
||||
/* scheduler configuration for this sq in the parent queue */
|
||||
pko_sq_sched.u64 = 0;
|
||||
pko_sq_sched.s.prio = prio;
|
||||
pko_sq_sched.s.rr_quantum = rr_quantum;
|
||||
csr_wr_node(node, CVMX_PKO_L3_SQX_SCHEDULE(queue), pko_sq_sched.u64);
|
||||
|
||||
/* child topology configuration */
|
||||
pko_child_topology.u64 = 0;
|
||||
pko_child_topology.s.parent = parent_queue;
|
||||
csr_wr_node(node, CVMX_PKO_L3_SQX_TOPOLOGY(queue),
|
||||
pko_child_topology.u64);
|
||||
}
|
||||
|
||||
/*
|
||||
* @INTERNAL
|
||||
* This function configures level 4 queues scheduling and topology parameters
|
||||
* in hardware.
|
||||
*
|
||||
* @param node is to specify the node to which this configuration is applied.
|
||||
* @param queue is the level4 queue number to be configured.
|
||||
* @param parent_queue is the parent queue at next level for this l4 queue.
|
||||
* @param prio is this queue's priority in parent's scheduler.
|
||||
* @param rr_quantum is this queue's round robin quantum value.
|
||||
* @param child_base is the first child queue number in the static prioriy children.
|
||||
* @param child_rr_prio is the round robin children priority.
|
||||
*/
|
||||
static void cvmx_pko_configure_l4_queue(int node, int queue, int parent_queue,
|
||||
int prio, int rr_quantum,
|
||||
int child_base, int child_rr_prio)
|
||||
{
|
||||
cvmx_pko_l4_sqx_schedule_t pko_sq_sched;
|
||||
cvmx_pko_l4_sqx_topology_t pko_child_topology;
|
||||
cvmx_pko_l3_sqx_topology_t pko_parent_topology;
|
||||
|
||||
/* parent topology configuration */
|
||||
pko_parent_topology.u64 =
|
||||
csr_rd_node(node, CVMX_PKO_L3_SQX_TOPOLOGY(parent_queue));
|
||||
pko_parent_topology.s.prio_anchor = child_base;
|
||||
pko_parent_topology.s.rr_prio = child_rr_prio;
|
||||
csr_wr_node(node, CVMX_PKO_L3_SQX_TOPOLOGY(parent_queue),
|
||||
pko_parent_topology.u64);
|
||||
|
||||
if (debug > 1)
|
||||
debug("CVMX_PKO_L3_SQX_TOPOLOGY(%u): PRIO_ANCHOR=%u PARENT=%u\n",
|
||||
parent_queue, pko_parent_topology.s.prio_anchor,
|
||||
pko_parent_topology.s.parent);
|
||||
|
||||
/* scheduler configuration for this sq in the parent queue */
|
||||
pko_sq_sched.u64 = 0;
|
||||
pko_sq_sched.s.prio = prio;
|
||||
pko_sq_sched.s.rr_quantum = rr_quantum;
|
||||
csr_wr_node(node, CVMX_PKO_L4_SQX_SCHEDULE(queue), pko_sq_sched.u64);
|
||||
|
||||
/* topology configuration */
|
||||
pko_child_topology.u64 = 0;
|
||||
pko_child_topology.s.parent = parent_queue;
|
||||
csr_wr_node(node, CVMX_PKO_L4_SQX_TOPOLOGY(queue),
|
||||
pko_child_topology.u64);
|
||||
}
|
||||
|
||||
/*
|
||||
* @INTERNAL
|
||||
* This function configures level 5 queues scheduling and topology parameters
|
||||
* in hardware.
|
||||
*
|
||||
* @param node is to specify the node to which this configuration is applied.
|
||||
* @param queue is the level5 queue number to be configured.
|
||||
* @param parent_queue is the parent queue at next level for this l5 queue.
|
||||
* @param prio is this queue's priority in parent's scheduler.
|
||||
* @param rr_quantum is this queue's round robin quantum value.
|
||||
* @param child_base is the first child queue number in the static prioriy children.
|
||||
* @param child_rr_prio is the round robin children priority.
|
||||
*/
|
||||
static void cvmx_pko_configure_l5_queue(int node, int queue, int parent_queue,
|
||||
int prio, int rr_quantum,
|
||||
int child_base, int child_rr_prio)
|
||||
{
|
||||
cvmx_pko_l5_sqx_schedule_t pko_sq_sched;
|
||||
cvmx_pko_l4_sqx_topology_t pko_parent_topology;
|
||||
cvmx_pko_l5_sqx_topology_t pko_child_topology;
|
||||
|
||||
/* parent topology configuration */
|
||||
pko_parent_topology.u64 =
|
||||
csr_rd_node(node, CVMX_PKO_L4_SQX_TOPOLOGY(parent_queue));
|
||||
pko_parent_topology.s.prio_anchor = child_base;
|
||||
pko_parent_topology.s.rr_prio = child_rr_prio;
|
||||
csr_wr_node(node, CVMX_PKO_L4_SQX_TOPOLOGY(parent_queue),
|
||||
pko_parent_topology.u64);
|
||||
|
||||
if (debug > 1)
|
||||
debug("CVMX_PKO_L4_SQX_TOPOLOGY(%u): PRIO_ANCHOR=%u PARENT=%u\n",
|
||||
parent_queue, pko_parent_topology.s.prio_anchor,
|
||||
pko_parent_topology.s.parent);
|
||||
|
||||
/* scheduler configuration for this sq in the parent queue */
|
||||
pko_sq_sched.u64 = 0;
|
||||
pko_sq_sched.s.prio = prio;
|
||||
pko_sq_sched.s.rr_quantum = rr_quantum;
|
||||
csr_wr_node(node, CVMX_PKO_L5_SQX_SCHEDULE(queue), pko_sq_sched.u64);
|
||||
|
||||
/* topology configuration */
|
||||
pko_child_topology.u64 = 0;
|
||||
pko_child_topology.s.parent = parent_queue;
|
||||
csr_wr_node(node, CVMX_PKO_L5_SQX_TOPOLOGY(queue),
|
||||
pko_child_topology.u64);
|
||||
}
|
||||
|
||||
/*
|
||||
* @INTERNAL
|
||||
* This function configures descriptor queues scheduling and topology parameters
|
||||
* in hardware.
|
||||
*
|
||||
* @param node is to specify the node to which this configuration is applied.
|
||||
* @param dq is the descriptor queue number to be configured.
|
||||
* @param parent_queue is the parent queue at next level for this dq.
|
||||
* @param prio is this queue's priority in parent's scheduler.
|
||||
* @param rr_quantum is this queue's round robin quantum value.
|
||||
* @param child_base is the first child queue number in the static prioriy children.
|
||||
* @param child_rr_prio is the round robin children priority.
|
||||
*/
|
||||
static void cvmx_pko_configure_dq(int node, int dq, int parent_queue, int prio,
|
||||
int rr_quantum, int child_base,
|
||||
int child_rr_prio)
|
||||
{
|
||||
cvmx_pko_dqx_schedule_t pko_dq_sched;
|
||||
cvmx_pko_dqx_topology_t pko_dq_topology;
|
||||
cvmx_pko_l5_sqx_topology_t pko_parent_topology;
|
||||
cvmx_pko_dqx_wm_ctl_t pko_dq_wm_ctl;
|
||||
unsigned long long parent_topology_reg;
|
||||
char lvl;
|
||||
|
||||
if (debug)
|
||||
debug("%s: dq %u parent %u child_base %u\n", __func__, dq,
|
||||
parent_queue, child_base);
|
||||
|
||||
if (__cvmx_pko3_sq_lvl_max() == CVMX_PKO_L5_QUEUES) {
|
||||
parent_topology_reg = CVMX_PKO_L5_SQX_TOPOLOGY(parent_queue);
|
||||
lvl = 5;
|
||||
} else if (__cvmx_pko3_sq_lvl_max() == CVMX_PKO_L3_QUEUES) {
|
||||
parent_topology_reg = CVMX_PKO_L3_SQX_TOPOLOGY(parent_queue);
|
||||
lvl = 3;
|
||||
} else {
|
||||
return;
|
||||
}
|
||||
|
||||
if (debug)
|
||||
debug("%s: parent_topology_reg=%#llx\n", __func__,
|
||||
parent_topology_reg);
|
||||
|
||||
/* parent topology configuration */
|
||||
pko_parent_topology.u64 = csr_rd_node(node, parent_topology_reg);
|
||||
pko_parent_topology.s.prio_anchor = child_base;
|
||||
pko_parent_topology.s.rr_prio = child_rr_prio;
|
||||
csr_wr_node(node, parent_topology_reg, pko_parent_topology.u64);
|
||||
|
||||
if (debug > 1)
|
||||
debug("CVMX_PKO_L%d_SQX_TOPOLOGY(%u): PRIO_ANCHOR=%u PARENT=%u\n",
|
||||
lvl, parent_queue, pko_parent_topology.s.prio_anchor,
|
||||
pko_parent_topology.s.parent);
|
||||
|
||||
/* scheduler configuration for this dq in the parent queue */
|
||||
pko_dq_sched.u64 = 0;
|
||||
pko_dq_sched.s.prio = prio;
|
||||
pko_dq_sched.s.rr_quantum = rr_quantum;
|
||||
csr_wr_node(node, CVMX_PKO_DQX_SCHEDULE(dq), pko_dq_sched.u64);
|
||||
|
||||
/* topology configuration */
|
||||
pko_dq_topology.u64 = 0;
|
||||
pko_dq_topology.s.parent = parent_queue;
|
||||
csr_wr_node(node, CVMX_PKO_DQX_TOPOLOGY(dq), pko_dq_topology.u64);
|
||||
|
||||
/* configure for counting packets, not bytes at this level */
|
||||
pko_dq_wm_ctl.u64 = 0;
|
||||
pko_dq_wm_ctl.s.kind = 1;
|
||||
pko_dq_wm_ctl.s.enable = 0;
|
||||
csr_wr_node(node, CVMX_PKO_DQX_WM_CTL(dq), pko_dq_wm_ctl.u64);
|
||||
|
||||
if (debug > 1) {
|
||||
pko_dq_sched.u64 = csr_rd_node(node, CVMX_PKO_DQX_SCHEDULE(dq));
|
||||
pko_dq_topology.u64 =
|
||||
csr_rd_node(node, CVMX_PKO_DQX_TOPOLOGY(dq));
|
||||
debug("CVMX_PKO_DQX_TOPOLOGY(%u)PARENT=%u CVMX_PKO_DQX_SCHEDULE(%u) PRIO=%u Q=%u\n",
|
||||
dq, pko_dq_topology.s.parent, dq, pko_dq_sched.s.prio,
|
||||
pko_dq_sched.s.rr_quantum);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* @INTERNAL
|
||||
* The following structure selects the Scheduling Queue configuration
|
||||
* routine for each of the supported levels.
|
||||
* The initial content of the table will be setup in accordance
|
||||
* to the specific SoC model and its implemented resources
|
||||
*/
|
||||
struct pko3_cfg_tab_s {
|
||||
/* function pointer for to configure the given level, last=DQ */
|
||||
struct {
|
||||
u8 parent_level;
|
||||
void (*cfg_sq_func)(int node, int queue, int parent_queue,
|
||||
int prio, int rr_quantum, int child_base,
|
||||
int child_rr_prio);
|
||||
//XXX for debugging exagerated size
|
||||
} lvl[256];
|
||||
};
|
||||
|
||||
static const struct pko3_cfg_tab_s pko3_cn78xx_cfg = {
|
||||
{ [CVMX_PKO_L2_QUEUES] = { CVMX_PKO_PORT_QUEUES,
|
||||
cvmx_pko_configure_l2_queue },
|
||||
[CVMX_PKO_L3_QUEUES] = { CVMX_PKO_L2_QUEUES,
|
||||
cvmx_pko_configure_l3_queue },
|
||||
[CVMX_PKO_L4_QUEUES] = { CVMX_PKO_L3_QUEUES,
|
||||
cvmx_pko_configure_l4_queue },
|
||||
[CVMX_PKO_L5_QUEUES] = { CVMX_PKO_L4_QUEUES,
|
||||
cvmx_pko_configure_l5_queue },
|
||||
[CVMX_PKO_DESCR_QUEUES] = { CVMX_PKO_L5_QUEUES,
|
||||
cvmx_pko_configure_dq } }
|
||||
};
|
||||
|
||||
static const struct pko3_cfg_tab_s pko3_cn73xx_cfg = {
|
||||
{ [CVMX_PKO_L2_QUEUES] = { CVMX_PKO_PORT_QUEUES,
|
||||
cvmx_pko_configure_l2_queue },
|
||||
[CVMX_PKO_L3_QUEUES] = { CVMX_PKO_L2_QUEUES,
|
||||
cvmx_pko_configure_l3_queue },
|
||||
[CVMX_PKO_DESCR_QUEUES] = { CVMX_PKO_L3_QUEUES,
|
||||
cvmx_pko_configure_dq } }
|
||||
};
|
||||
|
||||
/*
|
||||
* Configure Port Queue and its children Scheduler Queue
|
||||
*
|
||||
* Port Queues (a.k.a L1) are assigned 1-to-1 to MACs.
|
||||
* L2 Scheduler Queues are used for specifying channels, and thus there
|
||||
* could be multiple L2 SQs attached to a single L1 PQ, either in a
|
||||
* fair round-robin scheduling, or with static and/or round-robin priorities.
|
||||
*
|
||||
* @param node on which to operate
|
||||
* @param mac_num is the LMAC number to that is associated with the Port Queue,
|
||||
* @param pq_num is the number of the L1 PQ attached to the MAC
|
||||
*
|
||||
* @returns 0 on success, -1 on failure.
|
||||
*/
|
||||
int cvmx_pko3_pq_config(unsigned int node, unsigned int mac_num,
|
||||
unsigned int pq_num)
|
||||
{
|
||||
char b1[10];
|
||||
|
||||
if (debug)
|
||||
debug("%s: MAC%u -> %s\n", __func__, mac_num,
|
||||
__cvmx_pko3_sq_str(b1, CVMX_PKO_PORT_QUEUES, pq_num));
|
||||
|
||||
cvmx_pko_configure_port_queue(node, pq_num, mac_num);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Configure L3 through L5 Scheduler Queues and Descriptor Queues
|
||||
*
|
||||
* The Scheduler Queues in Levels 3 to 5 and Descriptor Queues are
|
||||
* configured one-to-one or many-to-one to a single parent Scheduler
|
||||
* Queues. The level of the parent SQ is specified in an argument,
|
||||
* as well as the number of childer to attach to the specific parent.
|
||||
* The children can have fair round-robin or priority-based scheduling
|
||||
* when multiple children are assigned a single parent.
|
||||
*
|
||||
* @param node on which to operate
|
||||
* @param child_level is the level of the child queue
|
||||
* @param parent_queue is the number of the parent Scheduler Queue
|
||||
* @param child_base is the number of the first child SQ or DQ to assign to
|
||||
* @param child_count is the number of consecutive children to assign
|
||||
* @param stat_prio_count is the priority setting for the children L2 SQs
|
||||
*
|
||||
* If <stat_prio_count> is -1, the Ln children will have equal Round-Robin
|
||||
* relationship with eachother. If <stat_prio_count> is 0, all Ln children
|
||||
* will be arranged in Weighted-Round-Robin, with the first having the most
|
||||
* precedence. If <stat_prio_count> is between 1 and 8, it indicates how
|
||||
* many children will have static priority settings (with the first having
|
||||
* the most precedence), with the remaining Ln children having WRR scheduling.
|
||||
*
|
||||
* @returns 0 on success, -1 on failure.
|
||||
*
|
||||
* Note: this function supports the configuration of node-local unit.
|
||||
*/
|
||||
int cvmx_pko3_sq_config_children(unsigned int node,
|
||||
enum cvmx_pko3_level_e child_level,
|
||||
unsigned int parent_queue,
|
||||
unsigned int child_base,
|
||||
unsigned int child_count, int stat_prio_count)
|
||||
{
|
||||
enum cvmx_pko3_level_e parent_level;
|
||||
unsigned int num_elem = 0;
|
||||
unsigned int rr_quantum, rr_count;
|
||||
unsigned int child, prio, rr_prio;
|
||||
const struct pko3_cfg_tab_s *cfg_tbl = NULL;
|
||||
char b1[10], b2[10];
|
||||
|
||||
if (OCTEON_IS_MODEL(OCTEON_CN78XX)) {
|
||||
num_elem = NUM_ELEMENTS(pko3_cn78xx_cfg.lvl);
|
||||
cfg_tbl = &pko3_cn78xx_cfg;
|
||||
}
|
||||
if (OCTEON_IS_MODEL(OCTEON_CN73XX) || OCTEON_IS_MODEL(OCTEON_CNF75XX)) {
|
||||
num_elem = NUM_ELEMENTS(pko3_cn73xx_cfg.lvl);
|
||||
cfg_tbl = &pko3_cn73xx_cfg;
|
||||
}
|
||||
|
||||
if (!cfg_tbl || child_level >= num_elem) {
|
||||
cvmx_printf("ERROR: %s: model or level %#x invalid\n", __func__,
|
||||
child_level);
|
||||
return -1;
|
||||
}
|
||||
|
||||
parent_level = cfg_tbl->lvl[child_level].parent_level;
|
||||
|
||||
if (!cfg_tbl->lvl[child_level].cfg_sq_func ||
|
||||
cfg_tbl->lvl[child_level].parent_level == 0) {
|
||||
cvmx_printf("ERROR: %s: queue level %#x invalid\n", __func__,
|
||||
child_level);
|
||||
return -1;
|
||||
}
|
||||
|
||||
/* First static priority is 0 - top precedence */
|
||||
prio = 0;
|
||||
|
||||
if (stat_prio_count > (signed int)child_count)
|
||||
stat_prio_count = child_count;
|
||||
|
||||
/* Valid PRIO field is 0..9, limit maximum static priorities */
|
||||
if (stat_prio_count > 9)
|
||||
stat_prio_count = 9;
|
||||
|
||||
/* Special case of a single child */
|
||||
if (child_count == 1) {
|
||||
rr_count = 0;
|
||||
rr_prio = 0xF;
|
||||
/* Special case for Fair-RR */
|
||||
} else if (stat_prio_count < 0) {
|
||||
rr_count = child_count;
|
||||
rr_prio = 0;
|
||||
} else {
|
||||
rr_count = child_count - stat_prio_count;
|
||||
rr_prio = stat_prio_count;
|
||||
}
|
||||
|
||||
/* Compute highest RR_QUANTUM */
|
||||
if (stat_prio_count > 0)
|
||||
rr_quantum = CVMX_PKO3_RR_QUANTUM_MIN * rr_count;
|
||||
else
|
||||
rr_quantum = CVMX_PKO3_RR_QUANTUM_MIN;
|
||||
|
||||
if (debug)
|
||||
debug("%s: Parent %s child_base %u rr_pri %u\n", __func__,
|
||||
__cvmx_pko3_sq_str(b1, parent_level, parent_queue),
|
||||
child_base, rr_prio);
|
||||
|
||||
/* Parent is configured with child */
|
||||
|
||||
for (child = child_base; child < (child_base + child_count); child++) {
|
||||
if (debug)
|
||||
debug("%s: Child %s of %s prio %u rr_quantum %#x\n",
|
||||
__func__,
|
||||
__cvmx_pko3_sq_str(b1, child_level, child),
|
||||
__cvmx_pko3_sq_str(b2, parent_level,
|
||||
parent_queue),
|
||||
prio, rr_quantum);
|
||||
|
||||
cfg_tbl->lvl[child_level].cfg_sq_func(node, child, parent_queue,
|
||||
prio, rr_quantum,
|
||||
child_base, rr_prio);
|
||||
|
||||
if (prio < rr_prio)
|
||||
prio++;
|
||||
else if (stat_prio_count > 0)
|
||||
rr_quantum -= CVMX_PKO3_RR_QUANTUM_MIN;
|
||||
} /* for child */
|
||||
|
||||
return 0;
|
||||
}
|
||||
Reference in New Issue
Block a user