Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753096AbbEATl7 (ORCPT ); Fri, 1 May 2015 15:41:59 -0400 Received: from filtteri6.pp.htv.fi ([213.243.153.189]:35971 "EHLO filtteri6.pp.htv.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752129AbbEATh5 (ORCPT ); Fri, 1 May 2015 15:37:57 -0400 From: Aaro Koskinen To: Greg Kroah-Hartman , Ralf Baechle , David Daney , David Daney Cc: devel@driverdev.osuosl.org, linux-mips@linux-mips.org, linux-kernel@vger.kernel.org, Aaro Koskinen Subject: [RFC PATCH 02/11] MIPS: OCTEON: move ethernet-specific helpers into a separate file Date: Fri, 1 May 2015 22:37:04 +0300 Message-Id: <1430509033-12113-3-git-send-email-aaro.koskinen@iki.fi> X-Mailer: git-send-email 2.3.3 In-Reply-To: <1430509033-12113-1-git-send-email-aaro.koskinen@iki.fi> References: <1430509033-12113-1-git-send-email-aaro.koskinen@iki.fi> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 61872 Lines: 1905 Move ethernet-specific helpers into a separate file. Signed-off-by: Aaro Koskinen --- arch/mips/cavium-octeon/executive/Makefile | 1 + .../cavium-octeon/executive/cvmx-helper-ethernet.c | 912 ++++++++++++++++++++ arch/mips/cavium-octeon/executive/cvmx-helper.c | 915 +-------------------- 3 files changed, 921 insertions(+), 907 deletions(-) create mode 100644 arch/mips/cavium-octeon/executive/cvmx-helper-ethernet.c diff --git a/arch/mips/cavium-octeon/executive/Makefile b/arch/mips/cavium-octeon/executive/Makefile index b6d6e84..e755a73 100644 --- a/arch/mips/cavium-octeon/executive/Makefile +++ b/arch/mips/cavium-octeon/executive/Makefile @@ -14,6 +14,7 @@ obj-y += cvmx-pko.o cvmx-spi.o cvmx-cmd-queue.o \ cvmx-helper-board.o cvmx-helper.o cvmx-helper-xaui.o \ cvmx-helper-rgmii.o cvmx-helper-sgmii.o cvmx-helper-npi.o \ cvmx-helper-loop.o cvmx-helper-spi.o cvmx-helper-util.o \ + cvmx-helper-ethernet.o \ cvmx-interrupt-decodes.o cvmx-interrupt-rsl.o obj-y += cvmx-helper-errata.o cvmx-helper-jtag.o diff --git a/arch/mips/cavium-octeon/executive/cvmx-helper-ethernet.c b/arch/mips/cavium-octeon/executive/cvmx-helper-ethernet.c new file mode 100644 index 0000000..6fe990e --- /dev/null +++ b/arch/mips/cavium-octeon/executive/cvmx-helper-ethernet.c @@ -0,0 +1,912 @@ +/* + * This file is based on code from OCTEON SDK by Cavium Networks. + * + * 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. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/** + * cvmx_override_pko_queue_priority(int ipd_port, uint64_t + * priorities[16]) is a function pointer. It is meant to allow + * customization of the PKO queue priorities based on the port + * number. Users should set this pointer to a function before + * calling any cvmx-helper operations. + */ +void (*cvmx_override_pko_queue_priority) (int pko_port, + uint64_t priorities[16]); + +/** + * cvmx_override_ipd_port_setup(int ipd_port) is a function + * pointer. It is meant to allow customization of the IPD port + * setup before packet input/output comes online. It is called + * after cvmx-helper does the default IPD configuration, but + * before IPD is enabled. Users should set this pointer to a + * function before calling any cvmx-helper operations. + */ +void (*cvmx_override_ipd_port_setup) (int ipd_port); + +/* Port last configured link info index by IPD/PKO port */ +static cvmx_helper_link_info_t + port_link_info[CVMX_PIP_NUM_INPUT_PORTS]; + +/** + * Configure the IPD/PIP tagging and QoS options for a specific + * port. This function determines the POW work queue entry + * contents for a port. The setup performed here is controlled by + * the defines in executive-config.h. + * + * @ipd_port: Port to configure. This follows the IPD numbering, not the + * per interface numbering + * + * Returns Zero on success, negative on failure + */ +static int __cvmx_helper_port_setup_ipd(int ipd_port) +{ + union cvmx_pip_prt_cfgx port_config; + union cvmx_pip_prt_tagx tag_config; + + port_config.u64 = cvmx_read_csr(CVMX_PIP_PRT_CFGX(ipd_port)); + tag_config.u64 = cvmx_read_csr(CVMX_PIP_PRT_TAGX(ipd_port)); + + /* Have each port go to a different POW queue */ + port_config.s.qos = ipd_port & 0x7; + + /* Process the headers and place the IP header in the work queue */ + port_config.s.mode = CVMX_HELPER_INPUT_PORT_SKIP_MODE; + + tag_config.s.ip6_src_flag = CVMX_HELPER_INPUT_TAG_IPV6_SRC_IP; + tag_config.s.ip6_dst_flag = CVMX_HELPER_INPUT_TAG_IPV6_DST_IP; + tag_config.s.ip6_sprt_flag = CVMX_HELPER_INPUT_TAG_IPV6_SRC_PORT; + tag_config.s.ip6_dprt_flag = CVMX_HELPER_INPUT_TAG_IPV6_DST_PORT; + tag_config.s.ip6_nxth_flag = CVMX_HELPER_INPUT_TAG_IPV6_NEXT_HEADER; + tag_config.s.ip4_src_flag = CVMX_HELPER_INPUT_TAG_IPV4_SRC_IP; + tag_config.s.ip4_dst_flag = CVMX_HELPER_INPUT_TAG_IPV4_DST_IP; + tag_config.s.ip4_sprt_flag = CVMX_HELPER_INPUT_TAG_IPV4_SRC_PORT; + tag_config.s.ip4_dprt_flag = CVMX_HELPER_INPUT_TAG_IPV4_DST_PORT; + tag_config.s.ip4_pctl_flag = CVMX_HELPER_INPUT_TAG_IPV4_PROTOCOL; + tag_config.s.inc_prt_flag = CVMX_HELPER_INPUT_TAG_INPUT_PORT; + tag_config.s.tcp6_tag_type = CVMX_HELPER_INPUT_TAG_TYPE; + tag_config.s.tcp4_tag_type = CVMX_HELPER_INPUT_TAG_TYPE; + tag_config.s.ip6_tag_type = CVMX_HELPER_INPUT_TAG_TYPE; + tag_config.s.ip4_tag_type = CVMX_HELPER_INPUT_TAG_TYPE; + tag_config.s.non_tag_type = CVMX_HELPER_INPUT_TAG_TYPE; + /* Put all packets in group 0. Other groups can be used by the app */ + tag_config.s.grp = 0; + + cvmx_pip_config_port(ipd_port, port_config, tag_config); + + /* Give the user a chance to override our setting for each port */ + if (cvmx_override_ipd_port_setup) + cvmx_override_ipd_port_setup(ipd_port); + + return 0; +} + +/** + * This function probes an interface to determine the actual + * number of hardware ports connected to it. It doesn't setup the + * ports or enable them. The main goal here is to set the global + * interface_port_count[interface] correctly. Hardware setup of the + * ports will be performed later. + * + * @interface: Interface to probe + * + * Returns Zero on success, negative on failure + */ +int cvmx_helper_interface_probe(int interface) +{ + cvmx_helper_interface_enumerate(interface); + /* At this stage in the game we don't want packets to be moving yet. + The following probe calls should perform hardware setup + needed to determine port counts. Receive must still be disabled */ + switch (cvmx_helper_interface_get_mode(interface)) { + /* These types don't support ports to IPD/PKO */ + case CVMX_HELPER_INTERFACE_MODE_DISABLED: + case CVMX_HELPER_INTERFACE_MODE_PCIE: + break; + /* XAUI is a single high speed port */ + case CVMX_HELPER_INTERFACE_MODE_XAUI: + __cvmx_helper_xaui_probe(interface); + break; + /* + * RGMII/GMII/MII are all treated about the same. Most + * functions refer to these ports as RGMII. + */ + case CVMX_HELPER_INTERFACE_MODE_RGMII: + case CVMX_HELPER_INTERFACE_MODE_GMII: + __cvmx_helper_rgmii_probe(interface); + break; + /* + * SPI4 can have 1-16 ports depending on the device at + * the other end. + */ + case CVMX_HELPER_INTERFACE_MODE_SPI: + __cvmx_helper_spi_probe(interface); + break; + /* + * SGMII can have 1-4 ports depending on how many are + * hooked up. + */ + case CVMX_HELPER_INTERFACE_MODE_SGMII: + case CVMX_HELPER_INTERFACE_MODE_PICMG: + __cvmx_helper_sgmii_probe(interface); + break; + /* PCI target Network Packet Interface */ + case CVMX_HELPER_INTERFACE_MODE_NPI: + __cvmx_helper_npi_probe(interface); + break; + /* + * Special loopback only ports. These are not the same + * as other ports in loopback mode. + */ + case CVMX_HELPER_INTERFACE_MODE_LOOP: + __cvmx_helper_loop_probe(interface); + break; + } + + /* Make sure all global variables propagate to other cores */ + CVMX_SYNCWS; + + return 0; +} + +/** + * Setup the IPD/PIP for the ports on an interface. Packet + * classification and tagging are set for every port on the + * interface. The number of ports on the interface must already + * have been probed. + * + * @interface: Interface to setup IPD/PIP for + * + * Returns Zero on success, negative on failure + */ +static int __cvmx_helper_interface_setup_ipd(int interface) +{ + int ipd_port = cvmx_helper_get_ipd_port(interface, 0); + int num_ports = cvmx_helper_ports_on_interface(interface); + + while (num_ports--) { + __cvmx_helper_port_setup_ipd(ipd_port); + ipd_port++; + } + return 0; +} + +/** + * Setup global setting for IPD/PIP not related to a specific + * interface or port. This must be called before IPD is enabled. + * + * Returns Zero on success, negative on failure. + */ +static int __cvmx_helper_global_setup_ipd(void) +{ + /* Setup the global packet input options */ + cvmx_ipd_config(CVMX_FPA_PACKET_POOL_SIZE / 8, + CVMX_HELPER_FIRST_MBUFF_SKIP / 8, + CVMX_HELPER_NOT_FIRST_MBUFF_SKIP / 8, + /* The +8 is to account for the next ptr */ + (CVMX_HELPER_FIRST_MBUFF_SKIP + 8) / 128, + /* The +8 is to account for the next ptr */ + (CVMX_HELPER_NOT_FIRST_MBUFF_SKIP + 8) / 128, + CVMX_FPA_WQE_POOL, + CVMX_IPD_OPC_MODE_STT, + CVMX_HELPER_ENABLE_BACK_PRESSURE); + return 0; +} + +/** + * Setup the PKO for the ports on an interface. The number of + * queues per port and the priority of each PKO output queue + * is set here. PKO must be disabled when this function is called. + * + * @interface: Interface to setup PKO for + * + * Returns Zero on success, negative on failure + */ +static int __cvmx_helper_interface_setup_pko(int interface) +{ + /* + * Each packet output queue has an associated priority. The + * higher the priority, the more often it can send a packet. A + * priority of 8 means it can send in all 8 rounds of + * contention. We're going to make each queue one less than + * the last. The vector of priorities has been extended to + * support CN5xxx CPUs, where up to 16 queues can be + * associated to a port. To keep backward compatibility we + * don't change the initial 8 priorities and replicate them in + * the second half. With per-core PKO queues (PKO lockless + * operation) all queues have the same priority. + */ + uint64_t priorities[16] = + { 8, 7, 6, 5, 4, 3, 2, 1, 8, 7, 6, 5, 4, 3, 2, 1 }; + + /* + * Setup the IPD/PIP and PKO for the ports discovered + * above. Here packet classification, tagging and output + * priorities are set. + */ + int ipd_port = cvmx_helper_get_ipd_port(interface, 0); + int num_ports = cvmx_helper_ports_on_interface(interface); + while (num_ports--) { + /* + * Give the user a chance to override the per queue + * priorities. + */ + if (cvmx_override_pko_queue_priority) + cvmx_override_pko_queue_priority(ipd_port, priorities); + + cvmx_pko_config_port(ipd_port, + cvmx_pko_get_base_queue_per_core(ipd_port, + 0), + cvmx_pko_get_num_queues(ipd_port), + priorities); + ipd_port++; + } + return 0; +} + +/** + * Setup global setting for PKO not related to a specific + * interface or port. This must be called before PKO is enabled. + * + * Returns Zero on success, negative on failure. + */ +static int __cvmx_helper_global_setup_pko(void) +{ + /* + * Disable tagwait FAU timeout. This needs to be done before + * anyone might start packet output using tags. + */ + union cvmx_iob_fau_timeout fau_to; + fau_to.u64 = 0; + fau_to.s.tout_val = 0xfff; + fau_to.s.tout_enb = 0; + cvmx_write_csr(CVMX_IOB_FAU_TIMEOUT, fau_to.u64); + return 0; +} + +/** + * Setup global backpressure setting. + * + * Returns Zero on success, negative on failure + */ +static int __cvmx_helper_global_setup_backpressure(void) +{ +#if CVMX_HELPER_DISABLE_RGMII_BACKPRESSURE + /* Disable backpressure if configured to do so */ + /* Disable backpressure (pause frame) generation */ + int num_interfaces = cvmx_helper_get_number_of_interfaces(); + int interface; + for (interface = 0; interface < num_interfaces; interface++) { + switch (cvmx_helper_interface_get_mode(interface)) { + case CVMX_HELPER_INTERFACE_MODE_DISABLED: + case CVMX_HELPER_INTERFACE_MODE_PCIE: + case CVMX_HELPER_INTERFACE_MODE_NPI: + case CVMX_HELPER_INTERFACE_MODE_LOOP: + case CVMX_HELPER_INTERFACE_MODE_XAUI: + break; + case CVMX_HELPER_INTERFACE_MODE_RGMII: + case CVMX_HELPER_INTERFACE_MODE_GMII: + case CVMX_HELPER_INTERFACE_MODE_SPI: + case CVMX_HELPER_INTERFACE_MODE_SGMII: + case CVMX_HELPER_INTERFACE_MODE_PICMG: + cvmx_gmx_set_backpressure_override(interface, 0xf); + break; + } + } +#endif + + return 0; +} + +/** + * Enable packet input/output from the hardware. This function is + * called after all internal setup is complete and IPD is enabled. + * After this function completes, packets will be accepted from the + * hardware ports. PKO should still be disabled to make sure packets + * aren't sent out partially setup hardware. + * + * @interface: Interface to enable + * + * Returns Zero on success, negative on failure + */ +static int __cvmx_helper_packet_hardware_enable(int interface) +{ + int result = 0; + switch (cvmx_helper_interface_get_mode(interface)) { + /* These types don't support ports to IPD/PKO */ + case CVMX_HELPER_INTERFACE_MODE_DISABLED: + case CVMX_HELPER_INTERFACE_MODE_PCIE: + /* Nothing to do */ + break; + /* XAUI is a single high speed port */ + case CVMX_HELPER_INTERFACE_MODE_XAUI: + result = __cvmx_helper_xaui_enable(interface); + break; + /* + * RGMII/GMII/MII are all treated about the same. Most + * functions refer to these ports as RGMII + */ + case CVMX_HELPER_INTERFACE_MODE_RGMII: + case CVMX_HELPER_INTERFACE_MODE_GMII: + result = __cvmx_helper_rgmii_enable(interface); + break; + /* + * SPI4 can have 1-16 ports depending on the device at + * the other end + */ + case CVMX_HELPER_INTERFACE_MODE_SPI: + result = __cvmx_helper_spi_enable(interface); + break; + /* + * SGMII can have 1-4 ports depending on how many are + * hooked up + */ + case CVMX_HELPER_INTERFACE_MODE_SGMII: + case CVMX_HELPER_INTERFACE_MODE_PICMG: + result = __cvmx_helper_sgmii_enable(interface); + break; + /* PCI target Network Packet Interface */ + case CVMX_HELPER_INTERFACE_MODE_NPI: + result = __cvmx_helper_npi_enable(interface); + break; + /* + * Special loopback only ports. These are not the same + * as other ports in loopback mode + */ + case CVMX_HELPER_INTERFACE_MODE_LOOP: + result = __cvmx_helper_loop_enable(interface); + break; + } + result |= __cvmx_helper_board_hardware_enable(interface); + return result; +} + +/** + * Function to adjust internal IPD pointer alignments + * + * Returns 0 on success + * !0 on failure + */ +int __cvmx_helper_errata_fix_ipd_ptr_alignment(void) +{ +#define FIX_IPD_FIRST_BUFF_PAYLOAD_BYTES \ + (CVMX_FPA_PACKET_POOL_SIZE-8-CVMX_HELPER_FIRST_MBUFF_SKIP) +#define FIX_IPD_NON_FIRST_BUFF_PAYLOAD_BYTES \ + (CVMX_FPA_PACKET_POOL_SIZE-8-CVMX_HELPER_NOT_FIRST_MBUFF_SKIP) +#define FIX_IPD_OUTPORT 0 + /* Ports 0-15 are interface 0, 16-31 are interface 1 */ +#define INTERFACE(port) (port >> 4) +#define INDEX(port) (port & 0xf) + uint64_t *p64; + cvmx_pko_command_word0_t pko_command; + union cvmx_buf_ptr g_buffer, pkt_buffer; + cvmx_wqe_t *work; + int size, num_segs = 0, wqe_pcnt, pkt_pcnt; + union cvmx_gmxx_prtx_cfg gmx_cfg; + int retry_cnt; + int retry_loop_cnt; + int i; + cvmx_helper_link_info_t link_info; + + /* Save values for restore at end */ + uint64_t prtx_cfg = + cvmx_read_csr(CVMX_GMXX_PRTX_CFG + (INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT))); + uint64_t tx_ptr_en = + cvmx_read_csr(CVMX_ASXX_TX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT))); + uint64_t rx_ptr_en = + cvmx_read_csr(CVMX_ASXX_RX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT))); + uint64_t rxx_jabber = + cvmx_read_csr(CVMX_GMXX_RXX_JABBER + (INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT))); + uint64_t frame_max = + cvmx_read_csr(CVMX_GMXX_RXX_FRM_MAX + (INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT))); + + /* Configure port to gig FDX as required for loopback mode */ + cvmx_helper_rgmii_internal_loopback(FIX_IPD_OUTPORT); + + /* + * Disable reception on all ports so if traffic is present it + * will not interfere. + */ + cvmx_write_csr(CVMX_ASXX_RX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT)), 0); + + cvmx_wait(100000000ull); + + for (retry_loop_cnt = 0; retry_loop_cnt < 10; retry_loop_cnt++) { + retry_cnt = 100000; + wqe_pcnt = cvmx_read_csr(CVMX_IPD_PTR_COUNT); + pkt_pcnt = (wqe_pcnt >> 7) & 0x7f; + wqe_pcnt &= 0x7f; + + num_segs = (2 + pkt_pcnt - wqe_pcnt) & 3; + + if (num_segs == 0) + goto fix_ipd_exit; + + num_segs += 1; + + size = + FIX_IPD_FIRST_BUFF_PAYLOAD_BYTES + + ((num_segs - 1) * FIX_IPD_NON_FIRST_BUFF_PAYLOAD_BYTES) - + (FIX_IPD_NON_FIRST_BUFF_PAYLOAD_BYTES / 2); + + cvmx_write_csr(CVMX_ASXX_PRT_LOOP(INTERFACE(FIX_IPD_OUTPORT)), + 1 << INDEX(FIX_IPD_OUTPORT)); + CVMX_SYNC; + + g_buffer.u64 = 0; + g_buffer.s.addr = + cvmx_ptr_to_phys(cvmx_fpa_alloc(CVMX_FPA_WQE_POOL)); + if (g_buffer.s.addr == 0) { + cvmx_dprintf("WARNING: FIX_IPD_PTR_ALIGNMENT " + "buffer allocation failure.\n"); + goto fix_ipd_exit; + } + + g_buffer.s.pool = CVMX_FPA_WQE_POOL; + g_buffer.s.size = num_segs; + + pkt_buffer.u64 = 0; + pkt_buffer.s.addr = + cvmx_ptr_to_phys(cvmx_fpa_alloc(CVMX_FPA_PACKET_POOL)); + if (pkt_buffer.s.addr == 0) { + cvmx_dprintf("WARNING: FIX_IPD_PTR_ALIGNMENT " + "buffer allocation failure.\n"); + goto fix_ipd_exit; + } + pkt_buffer.s.i = 1; + pkt_buffer.s.pool = CVMX_FPA_PACKET_POOL; + pkt_buffer.s.size = FIX_IPD_FIRST_BUFF_PAYLOAD_BYTES; + + p64 = (uint64_t *) cvmx_phys_to_ptr(pkt_buffer.s.addr); + p64[0] = 0xffffffffffff0000ull; + p64[1] = 0x08004510ull; + p64[2] = ((uint64_t) (size - 14) << 48) | 0x5ae740004000ull; + p64[3] = 0x3a5fc0a81073c0a8ull; + + for (i = 0; i < num_segs; i++) { + if (i > 0) + pkt_buffer.s.size = + FIX_IPD_NON_FIRST_BUFF_PAYLOAD_BYTES; + + if (i == (num_segs - 1)) + pkt_buffer.s.i = 0; + + *(uint64_t *) cvmx_phys_to_ptr(g_buffer.s.addr + + 8 * i) = pkt_buffer.u64; + } + + /* Build the PKO command */ + pko_command.u64 = 0; + pko_command.s.segs = num_segs; + pko_command.s.total_bytes = size; + pko_command.s.dontfree = 0; + pko_command.s.gather = 1; + + gmx_cfg.u64 = + cvmx_read_csr(CVMX_GMXX_PRTX_CFG + (INDEX(FIX_IPD_OUTPORT), + INTERFACE(FIX_IPD_OUTPORT))); + gmx_cfg.s.en = 1; + cvmx_write_csr(CVMX_GMXX_PRTX_CFG + (INDEX(FIX_IPD_OUTPORT), + INTERFACE(FIX_IPD_OUTPORT)), gmx_cfg.u64); + cvmx_write_csr(CVMX_ASXX_TX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT)), + 1 << INDEX(FIX_IPD_OUTPORT)); + cvmx_write_csr(CVMX_ASXX_RX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT)), + 1 << INDEX(FIX_IPD_OUTPORT)); + + cvmx_write_csr(CVMX_GMXX_RXX_JABBER + (INDEX(FIX_IPD_OUTPORT), + INTERFACE(FIX_IPD_OUTPORT)), 65392 - 14 - 4); + cvmx_write_csr(CVMX_GMXX_RXX_FRM_MAX + (INDEX(FIX_IPD_OUTPORT), + INTERFACE(FIX_IPD_OUTPORT)), 65392 - 14 - 4); + + cvmx_pko_send_packet_prepare(FIX_IPD_OUTPORT, + cvmx_pko_get_base_queue + (FIX_IPD_OUTPORT), + CVMX_PKO_LOCK_CMD_QUEUE); + cvmx_pko_send_packet_finish(FIX_IPD_OUTPORT, + cvmx_pko_get_base_queue + (FIX_IPD_OUTPORT), pko_command, + g_buffer, CVMX_PKO_LOCK_CMD_QUEUE); + + CVMX_SYNC; + + do { + work = cvmx_pow_work_request_sync(CVMX_POW_WAIT); + retry_cnt--; + } while ((work == NULL) && (retry_cnt > 0)); + + if (!retry_cnt) + cvmx_dprintf("WARNING: FIX_IPD_PTR_ALIGNMENT " + "get_work() timeout occurred.\n"); + + /* Free packet */ + if (work) + cvmx_helper_free_packet_data(work); + } + +fix_ipd_exit: + + /* Return CSR configs to saved values */ + cvmx_write_csr(CVMX_GMXX_PRTX_CFG + (INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT)), + prtx_cfg); + cvmx_write_csr(CVMX_ASXX_TX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT)), + tx_ptr_en); + cvmx_write_csr(CVMX_ASXX_RX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT)), + rx_ptr_en); + cvmx_write_csr(CVMX_GMXX_RXX_JABBER + (INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT)), + rxx_jabber); + cvmx_write_csr(CVMX_GMXX_RXX_FRM_MAX + (INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT)), + frame_max); + cvmx_write_csr(CVMX_ASXX_PRT_LOOP(INTERFACE(FIX_IPD_OUTPORT)), 0); + /* Set link to down so autonegotiation will set it up again */ + link_info.u64 = 0; + cvmx_helper_link_set(FIX_IPD_OUTPORT, link_info); + + /* + * Bring the link back up as autonegotiation is not done in + * user applications. + */ + cvmx_helper_link_autoconf(FIX_IPD_OUTPORT); + + CVMX_SYNC; + if (num_segs) + cvmx_dprintf("WARNING: FIX_IPD_PTR_ALIGNMENT failed.\n"); + + return !!num_segs; + +} + +/** + * Called after all internal packet IO paths are setup. This + * function enables IPD/PIP and begins packet input and output. + * + * Returns Zero on success, negative on failure + */ +int cvmx_helper_ipd_and_packet_input_enable(void) +{ + int num_interfaces; + int interface; + + /* Enable IPD */ + cvmx_ipd_enable(); + + /* + * Time to enable hardware ports packet input and output. Note + * that at this point IPD/PIP must be fully functional and PKO + * must be disabled + */ + num_interfaces = cvmx_helper_get_number_of_interfaces(); + for (interface = 0; interface < num_interfaces; interface++) { + if (cvmx_helper_ports_on_interface(interface) > 0) + __cvmx_helper_packet_hardware_enable(interface); + } + + /* Finally enable PKO now that the entire path is up and running */ + cvmx_pko_enable(); + + if ((OCTEON_IS_MODEL(OCTEON_CN31XX_PASS1) + || OCTEON_IS_MODEL(OCTEON_CN30XX_PASS1)) + && (cvmx_sysinfo_get()->board_type != CVMX_BOARD_TYPE_SIM)) + __cvmx_helper_errata_fix_ipd_ptr_alignment(); + return 0; +} +EXPORT_SYMBOL_GPL(cvmx_helper_ipd_and_packet_input_enable); + +/** + * Initialize the PIP, IPD, and PKO hardware to support + * simple priority based queues for the ethernet ports. Each + * port is configured with a number of priority queues based + * on CVMX_PKO_QUEUES_PER_PORT_* where each queue is lower + * priority than the previous. + * + * Returns Zero on success, non-zero on failure + */ +int cvmx_helper_initialize_packet_io_global(void) +{ + int result = 0; + int interface; + union cvmx_l2c_cfg l2c_cfg; + union cvmx_smix_en smix_en; + const int num_interfaces = cvmx_helper_get_number_of_interfaces(); + + /* + * CN52XX pass 1: Due to a bug in 2nd order CDR, it needs to + * be disabled. + */ + if (OCTEON_IS_MODEL(OCTEON_CN52XX_PASS1_0)) + __cvmx_helper_errata_qlm_disable_2nd_order_cdr(1); + + /* + * Tell L2 to give the IOB statically higher priority compared + * to the cores. This avoids conditions where IO blocks might + * be starved under very high L2 loads. + */ + l2c_cfg.u64 = cvmx_read_csr(CVMX_L2C_CFG); + l2c_cfg.s.lrf_arb_mode = 0; + l2c_cfg.s.rfb_arb_mode = 0; + cvmx_write_csr(CVMX_L2C_CFG, l2c_cfg.u64); + + /* Make sure SMI/MDIO is enabled so we can query PHYs */ + smix_en.u64 = cvmx_read_csr(CVMX_SMIX_EN(0)); + if (!smix_en.s.en) { + smix_en.s.en = 1; + cvmx_write_csr(CVMX_SMIX_EN(0), smix_en.u64); + } + + /* Newer chips actually have two SMI/MDIO interfaces */ + if (!OCTEON_IS_MODEL(OCTEON_CN3XXX) && + !OCTEON_IS_MODEL(OCTEON_CN58XX) && + !OCTEON_IS_MODEL(OCTEON_CN50XX)) { + smix_en.u64 = cvmx_read_csr(CVMX_SMIX_EN(1)); + if (!smix_en.s.en) { + smix_en.s.en = 1; + cvmx_write_csr(CVMX_SMIX_EN(1), smix_en.u64); + } + } + + cvmx_pko_initialize_global(); + for (interface = 0; interface < num_interfaces; interface++) { + result |= cvmx_helper_interface_probe(interface); + if (cvmx_helper_ports_on_interface(interface) > 0) + cvmx_dprintf("Interface %d has %d ports (%s)\n", + interface, + cvmx_helper_ports_on_interface(interface), + cvmx_helper_interface_mode_to_string + (cvmx_helper_interface_get_mode + (interface))); + result |= __cvmx_helper_interface_setup_ipd(interface); + result |= __cvmx_helper_interface_setup_pko(interface); + } + + result |= __cvmx_helper_global_setup_ipd(); + result |= __cvmx_helper_global_setup_pko(); + + /* Enable any flow control and backpressure */ + result |= __cvmx_helper_global_setup_backpressure(); + +#if CVMX_HELPER_ENABLE_IPD + result |= cvmx_helper_ipd_and_packet_input_enable(); +#endif + return result; +} +EXPORT_SYMBOL_GPL(cvmx_helper_initialize_packet_io_global); + +/** + * Does core local initialization for packet io + * + * Returns Zero on success, non-zero on failure + */ +int cvmx_helper_initialize_packet_io_local(void) +{ + return cvmx_pko_initialize_local(); +} + +/** + * Auto configure an IPD/PKO port link state and speed. This + * function basically does the equivalent of: + * cvmx_helper_link_set(ipd_port, cvmx_helper_link_get(ipd_port)); + * + * @ipd_port: IPD/PKO port to auto configure + * + * Returns Link state after configure + */ +cvmx_helper_link_info_t cvmx_helper_link_autoconf(int ipd_port) +{ + cvmx_helper_link_info_t link_info; + int interface = cvmx_helper_get_interface_num(ipd_port); + int index = cvmx_helper_get_interface_index_num(ipd_port); + + if (index >= cvmx_helper_ports_on_interface(interface)) { + link_info.u64 = 0; + return link_info; + } + + link_info = cvmx_helper_link_get(ipd_port); + if (link_info.u64 == port_link_info[ipd_port].u64) + return link_info; + + /* If we fail to set the link speed, port_link_info will not change */ + cvmx_helper_link_set(ipd_port, link_info); + + /* + * port_link_info should be the current value, which will be + * different than expect if cvmx_helper_link_set() failed. + */ + return port_link_info[ipd_port]; +} +EXPORT_SYMBOL_GPL(cvmx_helper_link_autoconf); + +/** + * Return the link state of an IPD/PKO port as returned by + * auto negotiation. The result of this function may not match + * Octeon's link config if auto negotiation has changed since + * the last call to cvmx_helper_link_set(). + * + * @ipd_port: IPD/PKO port to query + * + * Returns Link state + */ +cvmx_helper_link_info_t cvmx_helper_link_get(int ipd_port) +{ + cvmx_helper_link_info_t result; + int interface = cvmx_helper_get_interface_num(ipd_port); + int index = cvmx_helper_get_interface_index_num(ipd_port); + + /* The default result will be a down link unless the code below + changes it */ + result.u64 = 0; + + if (index >= cvmx_helper_ports_on_interface(interface)) + return result; + + switch (cvmx_helper_interface_get_mode(interface)) { + case CVMX_HELPER_INTERFACE_MODE_DISABLED: + case CVMX_HELPER_INTERFACE_MODE_PCIE: + /* Network links are not supported */ + break; + case CVMX_HELPER_INTERFACE_MODE_XAUI: + result = __cvmx_helper_xaui_link_get(ipd_port); + break; + case CVMX_HELPER_INTERFACE_MODE_GMII: + if (index == 0) + result = __cvmx_helper_rgmii_link_get(ipd_port); + else { + result.s.full_duplex = 1; + result.s.link_up = 1; + result.s.speed = 1000; + } + break; + case CVMX_HELPER_INTERFACE_MODE_RGMII: + result = __cvmx_helper_rgmii_link_get(ipd_port); + break; + case CVMX_HELPER_INTERFACE_MODE_SPI: + result = __cvmx_helper_spi_link_get(ipd_port); + break; + case CVMX_HELPER_INTERFACE_MODE_SGMII: + case CVMX_HELPER_INTERFACE_MODE_PICMG: + result = __cvmx_helper_sgmii_link_get(ipd_port); + break; + case CVMX_HELPER_INTERFACE_MODE_NPI: + case CVMX_HELPER_INTERFACE_MODE_LOOP: + /* Network links are not supported */ + break; + } + return result; +} +EXPORT_SYMBOL_GPL(cvmx_helper_link_get); + +/** + * Configure an IPD/PKO port for the specified link state. This + * function does not influence auto negotiation at the PHY level. + * The passed link state must always match the link state returned + * by cvmx_helper_link_get(). It is normally best to use + * cvmx_helper_link_autoconf() instead. + * + * @ipd_port: IPD/PKO port to configure + * @link_info: The new link state + * + * Returns Zero on success, negative on failure + */ +int cvmx_helper_link_set(int ipd_port, cvmx_helper_link_info_t link_info) +{ + int result = -1; + int interface = cvmx_helper_get_interface_num(ipd_port); + int index = cvmx_helper_get_interface_index_num(ipd_port); + + if (index >= cvmx_helper_ports_on_interface(interface)) + return -1; + + switch (cvmx_helper_interface_get_mode(interface)) { + case CVMX_HELPER_INTERFACE_MODE_DISABLED: + case CVMX_HELPER_INTERFACE_MODE_PCIE: + break; + case CVMX_HELPER_INTERFACE_MODE_XAUI: + result = __cvmx_helper_xaui_link_set(ipd_port, link_info); + break; + /* + * RGMII/GMII/MII are all treated about the same. Most + * functions refer to these ports as RGMII. + */ + case CVMX_HELPER_INTERFACE_MODE_RGMII: + case CVMX_HELPER_INTERFACE_MODE_GMII: + result = __cvmx_helper_rgmii_link_set(ipd_port, link_info); + break; + case CVMX_HELPER_INTERFACE_MODE_SPI: + result = __cvmx_helper_spi_link_set(ipd_port, link_info); + break; + case CVMX_HELPER_INTERFACE_MODE_SGMII: + case CVMX_HELPER_INTERFACE_MODE_PICMG: + result = __cvmx_helper_sgmii_link_set(ipd_port, link_info); + break; + case CVMX_HELPER_INTERFACE_MODE_NPI: + case CVMX_HELPER_INTERFACE_MODE_LOOP: + break; + } + /* Set the port_link_info here so that the link status is updated + no matter how cvmx_helper_link_set is called. We don't change + the value if link_set failed */ + if (result == 0) + port_link_info[ipd_port].u64 = link_info.u64; + return result; +} +EXPORT_SYMBOL_GPL(cvmx_helper_link_set); + +/** + * Configure a port for internal and/or external loopback. Internal loopback + * causes packets sent by the port to be received by Octeon. External loopback + * causes packets received from the wire to sent out again. + * + * @ipd_port: IPD/PKO port to loopback. + * @enable_internal: + * Non zero if you want internal loopback + * @enable_external: + * Non zero if you want external loopback + * + * Returns Zero on success, negative on failure. + */ +int cvmx_helper_configure_loopback(int ipd_port, int enable_internal, + int enable_external) +{ + int result = -1; + int interface = cvmx_helper_get_interface_num(ipd_port); + int index = cvmx_helper_get_interface_index_num(ipd_port); + + if (index >= cvmx_helper_ports_on_interface(interface)) + return -1; + + switch (cvmx_helper_interface_get_mode(interface)) { + case CVMX_HELPER_INTERFACE_MODE_DISABLED: + case CVMX_HELPER_INTERFACE_MODE_PCIE: + case CVMX_HELPER_INTERFACE_MODE_SPI: + case CVMX_HELPER_INTERFACE_MODE_NPI: + case CVMX_HELPER_INTERFACE_MODE_LOOP: + break; + case CVMX_HELPER_INTERFACE_MODE_XAUI: + result = + __cvmx_helper_xaui_configure_loopback(ipd_port, + enable_internal, + enable_external); + break; + case CVMX_HELPER_INTERFACE_MODE_RGMII: + case CVMX_HELPER_INTERFACE_MODE_GMII: + result = + __cvmx_helper_rgmii_configure_loopback(ipd_port, + enable_internal, + enable_external); + break; + case CVMX_HELPER_INTERFACE_MODE_SGMII: + case CVMX_HELPER_INTERFACE_MODE_PICMG: + result = + __cvmx_helper_sgmii_configure_loopback(ipd_port, + enable_internal, + enable_external); + break; + } + return result; +} diff --git a/arch/mips/cavium-octeon/executive/cvmx-helper.c b/arch/mips/cavium-octeon/executive/cvmx-helper.c index 301a9ce..b531ffa 100644 --- a/arch/mips/cavium-octeon/executive/cvmx-helper.c +++ b/arch/mips/cavium-octeon/executive/cvmx-helper.c @@ -34,45 +34,13 @@ #include -#include -#include -#include -#include #include #include #include -#include -#include -#include - -/** - * cvmx_override_pko_queue_priority(int ipd_port, uint64_t - * priorities[16]) is a function pointer. It is meant to allow - * customization of the PKO queue priorities based on the port - * number. Users should set this pointer to a function before - * calling any cvmx-helper operations. - */ -void (*cvmx_override_pko_queue_priority) (int pko_port, - uint64_t priorities[16]); - -/** - * cvmx_override_ipd_port_setup(int ipd_port) is a function - * pointer. It is meant to allow customization of the IPD port - * setup before packet input/output comes online. It is called - * after cvmx-helper does the default IPD configuration, but - * before IPD is enabled. Users should set this pointer to a - * function before calling any cvmx-helper operations. - */ -void (*cvmx_override_ipd_port_setup) (int ipd_port); - /* Port count per interface */ static int interface_port_count[5]; -/* Port last configured link info index by IPD/PKO port */ -static cvmx_helper_link_info_t - port_link_info[CVMX_PIP_NUM_INPUT_PORTS]; - /** * Return the number of interfaces the chip has. Each interface * may have multiple ports. Most chips support two interfaces, @@ -91,21 +59,6 @@ int cvmx_helper_get_number_of_interfaces(void) EXPORT_SYMBOL_GPL(cvmx_helper_get_number_of_interfaces); /** - * Return the number of ports on an interface. Depending on the - * chip and configuration, this can be 1-16. A value of 0 - * specifies that the interface doesn't exist or isn't usable. - * - * @interface: Interface to get the port count for - * - * Returns Number of ports on interface. Can be Zero. - */ -int cvmx_helper_ports_on_interface(int interface) -{ - return interface_port_count[interface]; -} -EXPORT_SYMBOL_GPL(cvmx_helper_ports_on_interface); - -/** * @INTERNAL * Return interface mode for CN68xx. */ @@ -348,59 +301,20 @@ cvmx_helper_interface_mode_t cvmx_helper_interface_get_mode(int interface) } } EXPORT_SYMBOL_GPL(cvmx_helper_interface_get_mode); - /** - * Configure the IPD/PIP tagging and QoS options for a specific - * port. This function determines the POW work queue entry - * contents for a port. The setup performed here is controlled by - * the defines in executive-config.h. + * Return the number of ports on an interface. Depending on the + * chip and configuration, this can be 1-16. A value of 0 + * specifies that the interface doesn't exist or isn't usable. * - * @ipd_port: Port to configure. This follows the IPD numbering, not the - * per interface numbering + * @interface: Interface to get the port count for * - * Returns Zero on success, negative on failure + * Returns Number of ports on interface. Can be Zero. */ -static int __cvmx_helper_port_setup_ipd(int ipd_port) +int cvmx_helper_ports_on_interface(int interface) { - union cvmx_pip_prt_cfgx port_config; - union cvmx_pip_prt_tagx tag_config; - - port_config.u64 = cvmx_read_csr(CVMX_PIP_PRT_CFGX(ipd_port)); - tag_config.u64 = cvmx_read_csr(CVMX_PIP_PRT_TAGX(ipd_port)); - - /* Have each port go to a different POW queue */ - port_config.s.qos = ipd_port & 0x7; - - /* Process the headers and place the IP header in the work queue */ - port_config.s.mode = CVMX_HELPER_INPUT_PORT_SKIP_MODE; - - tag_config.s.ip6_src_flag = CVMX_HELPER_INPUT_TAG_IPV6_SRC_IP; - tag_config.s.ip6_dst_flag = CVMX_HELPER_INPUT_TAG_IPV6_DST_IP; - tag_config.s.ip6_sprt_flag = CVMX_HELPER_INPUT_TAG_IPV6_SRC_PORT; - tag_config.s.ip6_dprt_flag = CVMX_HELPER_INPUT_TAG_IPV6_DST_PORT; - tag_config.s.ip6_nxth_flag = CVMX_HELPER_INPUT_TAG_IPV6_NEXT_HEADER; - tag_config.s.ip4_src_flag = CVMX_HELPER_INPUT_TAG_IPV4_SRC_IP; - tag_config.s.ip4_dst_flag = CVMX_HELPER_INPUT_TAG_IPV4_DST_IP; - tag_config.s.ip4_sprt_flag = CVMX_HELPER_INPUT_TAG_IPV4_SRC_PORT; - tag_config.s.ip4_dprt_flag = CVMX_HELPER_INPUT_TAG_IPV4_DST_PORT; - tag_config.s.ip4_pctl_flag = CVMX_HELPER_INPUT_TAG_IPV4_PROTOCOL; - tag_config.s.inc_prt_flag = CVMX_HELPER_INPUT_TAG_INPUT_PORT; - tag_config.s.tcp6_tag_type = CVMX_HELPER_INPUT_TAG_TYPE; - tag_config.s.tcp4_tag_type = CVMX_HELPER_INPUT_TAG_TYPE; - tag_config.s.ip6_tag_type = CVMX_HELPER_INPUT_TAG_TYPE; - tag_config.s.ip4_tag_type = CVMX_HELPER_INPUT_TAG_TYPE; - tag_config.s.non_tag_type = CVMX_HELPER_INPUT_TAG_TYPE; - /* Put all packets in group 0. Other groups can be used by the app */ - tag_config.s.grp = 0; - - cvmx_pip_config_port(ipd_port, port_config, tag_config); - - /* Give the user a chance to override our setting for each port */ - if (cvmx_override_ipd_port_setup) - cvmx_override_ipd_port_setup(ipd_port); - - return 0; + return interface_port_count[interface]; } +EXPORT_SYMBOL_GPL(cvmx_helper_ports_on_interface); /** * This function sets the interface_port_count[interface] correctly, @@ -475,816 +389,3 @@ int cvmx_helper_interface_enumerate(int interface) return 0; } - -/** - * This function probes an interface to determine the actual - * number of hardware ports connected to it. It doesn't setup the - * ports or enable them. The main goal here is to set the global - * interface_port_count[interface] correctly. Hardware setup of the - * ports will be performed later. - * - * @interface: Interface to probe - * - * Returns Zero on success, negative on failure - */ -int cvmx_helper_interface_probe(int interface) -{ - cvmx_helper_interface_enumerate(interface); - /* At this stage in the game we don't want packets to be moving yet. - The following probe calls should perform hardware setup - needed to determine port counts. Receive must still be disabled */ - switch (cvmx_helper_interface_get_mode(interface)) { - /* These types don't support ports to IPD/PKO */ - case CVMX_HELPER_INTERFACE_MODE_DISABLED: - case CVMX_HELPER_INTERFACE_MODE_PCIE: - break; - /* XAUI is a single high speed port */ - case CVMX_HELPER_INTERFACE_MODE_XAUI: - __cvmx_helper_xaui_probe(interface); - break; - /* - * RGMII/GMII/MII are all treated about the same. Most - * functions refer to these ports as RGMII. - */ - case CVMX_HELPER_INTERFACE_MODE_RGMII: - case CVMX_HELPER_INTERFACE_MODE_GMII: - __cvmx_helper_rgmii_probe(interface); - break; - /* - * SPI4 can have 1-16 ports depending on the device at - * the other end. - */ - case CVMX_HELPER_INTERFACE_MODE_SPI: - __cvmx_helper_spi_probe(interface); - break; - /* - * SGMII can have 1-4 ports depending on how many are - * hooked up. - */ - case CVMX_HELPER_INTERFACE_MODE_SGMII: - case CVMX_HELPER_INTERFACE_MODE_PICMG: - __cvmx_helper_sgmii_probe(interface); - break; - /* PCI target Network Packet Interface */ - case CVMX_HELPER_INTERFACE_MODE_NPI: - __cvmx_helper_npi_probe(interface); - break; - /* - * Special loopback only ports. These are not the same - * as other ports in loopback mode. - */ - case CVMX_HELPER_INTERFACE_MODE_LOOP: - __cvmx_helper_loop_probe(interface); - break; - } - - /* Make sure all global variables propagate to other cores */ - CVMX_SYNCWS; - - return 0; -} - -/** - * Setup the IPD/PIP for the ports on an interface. Packet - * classification and tagging are set for every port on the - * interface. The number of ports on the interface must already - * have been probed. - * - * @interface: Interface to setup IPD/PIP for - * - * Returns Zero on success, negative on failure - */ -static int __cvmx_helper_interface_setup_ipd(int interface) -{ - int ipd_port = cvmx_helper_get_ipd_port(interface, 0); - int num_ports = cvmx_helper_ports_on_interface(interface); - - while (num_ports--) { - __cvmx_helper_port_setup_ipd(ipd_port); - ipd_port++; - } - return 0; -} - -/** - * Setup global setting for IPD/PIP not related to a specific - * interface or port. This must be called before IPD is enabled. - * - * Returns Zero on success, negative on failure. - */ -static int __cvmx_helper_global_setup_ipd(void) -{ - /* Setup the global packet input options */ - cvmx_ipd_config(CVMX_FPA_PACKET_POOL_SIZE / 8, - CVMX_HELPER_FIRST_MBUFF_SKIP / 8, - CVMX_HELPER_NOT_FIRST_MBUFF_SKIP / 8, - /* The +8 is to account for the next ptr */ - (CVMX_HELPER_FIRST_MBUFF_SKIP + 8) / 128, - /* The +8 is to account for the next ptr */ - (CVMX_HELPER_NOT_FIRST_MBUFF_SKIP + 8) / 128, - CVMX_FPA_WQE_POOL, - CVMX_IPD_OPC_MODE_STT, - CVMX_HELPER_ENABLE_BACK_PRESSURE); - return 0; -} - -/** - * Setup the PKO for the ports on an interface. The number of - * queues per port and the priority of each PKO output queue - * is set here. PKO must be disabled when this function is called. - * - * @interface: Interface to setup PKO for - * - * Returns Zero on success, negative on failure - */ -static int __cvmx_helper_interface_setup_pko(int interface) -{ - /* - * Each packet output queue has an associated priority. The - * higher the priority, the more often it can send a packet. A - * priority of 8 means it can send in all 8 rounds of - * contention. We're going to make each queue one less than - * the last. The vector of priorities has been extended to - * support CN5xxx CPUs, where up to 16 queues can be - * associated to a port. To keep backward compatibility we - * don't change the initial 8 priorities and replicate them in - * the second half. With per-core PKO queues (PKO lockless - * operation) all queues have the same priority. - */ - uint64_t priorities[16] = - { 8, 7, 6, 5, 4, 3, 2, 1, 8, 7, 6, 5, 4, 3, 2, 1 }; - - /* - * Setup the IPD/PIP and PKO for the ports discovered - * above. Here packet classification, tagging and output - * priorities are set. - */ - int ipd_port = cvmx_helper_get_ipd_port(interface, 0); - int num_ports = cvmx_helper_ports_on_interface(interface); - while (num_ports--) { - /* - * Give the user a chance to override the per queue - * priorities. - */ - if (cvmx_override_pko_queue_priority) - cvmx_override_pko_queue_priority(ipd_port, priorities); - - cvmx_pko_config_port(ipd_port, - cvmx_pko_get_base_queue_per_core(ipd_port, - 0), - cvmx_pko_get_num_queues(ipd_port), - priorities); - ipd_port++; - } - return 0; -} - -/** - * Setup global setting for PKO not related to a specific - * interface or port. This must be called before PKO is enabled. - * - * Returns Zero on success, negative on failure. - */ -static int __cvmx_helper_global_setup_pko(void) -{ - /* - * Disable tagwait FAU timeout. This needs to be done before - * anyone might start packet output using tags. - */ - union cvmx_iob_fau_timeout fau_to; - fau_to.u64 = 0; - fau_to.s.tout_val = 0xfff; - fau_to.s.tout_enb = 0; - cvmx_write_csr(CVMX_IOB_FAU_TIMEOUT, fau_to.u64); - return 0; -} - -/** - * Setup global backpressure setting. - * - * Returns Zero on success, negative on failure - */ -static int __cvmx_helper_global_setup_backpressure(void) -{ -#if CVMX_HELPER_DISABLE_RGMII_BACKPRESSURE - /* Disable backpressure if configured to do so */ - /* Disable backpressure (pause frame) generation */ - int num_interfaces = cvmx_helper_get_number_of_interfaces(); - int interface; - for (interface = 0; interface < num_interfaces; interface++) { - switch (cvmx_helper_interface_get_mode(interface)) { - case CVMX_HELPER_INTERFACE_MODE_DISABLED: - case CVMX_HELPER_INTERFACE_MODE_PCIE: - case CVMX_HELPER_INTERFACE_MODE_NPI: - case CVMX_HELPER_INTERFACE_MODE_LOOP: - case CVMX_HELPER_INTERFACE_MODE_XAUI: - break; - case CVMX_HELPER_INTERFACE_MODE_RGMII: - case CVMX_HELPER_INTERFACE_MODE_GMII: - case CVMX_HELPER_INTERFACE_MODE_SPI: - case CVMX_HELPER_INTERFACE_MODE_SGMII: - case CVMX_HELPER_INTERFACE_MODE_PICMG: - cvmx_gmx_set_backpressure_override(interface, 0xf); - break; - } - } -#endif - - return 0; -} - -/** - * Enable packet input/output from the hardware. This function is - * called after all internal setup is complete and IPD is enabled. - * After this function completes, packets will be accepted from the - * hardware ports. PKO should still be disabled to make sure packets - * aren't sent out partially setup hardware. - * - * @interface: Interface to enable - * - * Returns Zero on success, negative on failure - */ -static int __cvmx_helper_packet_hardware_enable(int interface) -{ - int result = 0; - switch (cvmx_helper_interface_get_mode(interface)) { - /* These types don't support ports to IPD/PKO */ - case CVMX_HELPER_INTERFACE_MODE_DISABLED: - case CVMX_HELPER_INTERFACE_MODE_PCIE: - /* Nothing to do */ - break; - /* XAUI is a single high speed port */ - case CVMX_HELPER_INTERFACE_MODE_XAUI: - result = __cvmx_helper_xaui_enable(interface); - break; - /* - * RGMII/GMII/MII are all treated about the same. Most - * functions refer to these ports as RGMII - */ - case CVMX_HELPER_INTERFACE_MODE_RGMII: - case CVMX_HELPER_INTERFACE_MODE_GMII: - result = __cvmx_helper_rgmii_enable(interface); - break; - /* - * SPI4 can have 1-16 ports depending on the device at - * the other end - */ - case CVMX_HELPER_INTERFACE_MODE_SPI: - result = __cvmx_helper_spi_enable(interface); - break; - /* - * SGMII can have 1-4 ports depending on how many are - * hooked up - */ - case CVMX_HELPER_INTERFACE_MODE_SGMII: - case CVMX_HELPER_INTERFACE_MODE_PICMG: - result = __cvmx_helper_sgmii_enable(interface); - break; - /* PCI target Network Packet Interface */ - case CVMX_HELPER_INTERFACE_MODE_NPI: - result = __cvmx_helper_npi_enable(interface); - break; - /* - * Special loopback only ports. These are not the same - * as other ports in loopback mode - */ - case CVMX_HELPER_INTERFACE_MODE_LOOP: - result = __cvmx_helper_loop_enable(interface); - break; - } - result |= __cvmx_helper_board_hardware_enable(interface); - return result; -} - -/** - * Function to adjust internal IPD pointer alignments - * - * Returns 0 on success - * !0 on failure - */ -int __cvmx_helper_errata_fix_ipd_ptr_alignment(void) -{ -#define FIX_IPD_FIRST_BUFF_PAYLOAD_BYTES \ - (CVMX_FPA_PACKET_POOL_SIZE-8-CVMX_HELPER_FIRST_MBUFF_SKIP) -#define FIX_IPD_NON_FIRST_BUFF_PAYLOAD_BYTES \ - (CVMX_FPA_PACKET_POOL_SIZE-8-CVMX_HELPER_NOT_FIRST_MBUFF_SKIP) -#define FIX_IPD_OUTPORT 0 - /* Ports 0-15 are interface 0, 16-31 are interface 1 */ -#define INTERFACE(port) (port >> 4) -#define INDEX(port) (port & 0xf) - uint64_t *p64; - cvmx_pko_command_word0_t pko_command; - union cvmx_buf_ptr g_buffer, pkt_buffer; - cvmx_wqe_t *work; - int size, num_segs = 0, wqe_pcnt, pkt_pcnt; - union cvmx_gmxx_prtx_cfg gmx_cfg; - int retry_cnt; - int retry_loop_cnt; - int i; - cvmx_helper_link_info_t link_info; - - /* Save values for restore at end */ - uint64_t prtx_cfg = - cvmx_read_csr(CVMX_GMXX_PRTX_CFG - (INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT))); - uint64_t tx_ptr_en = - cvmx_read_csr(CVMX_ASXX_TX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT))); - uint64_t rx_ptr_en = - cvmx_read_csr(CVMX_ASXX_RX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT))); - uint64_t rxx_jabber = - cvmx_read_csr(CVMX_GMXX_RXX_JABBER - (INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT))); - uint64_t frame_max = - cvmx_read_csr(CVMX_GMXX_RXX_FRM_MAX - (INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT))); - - /* Configure port to gig FDX as required for loopback mode */ - cvmx_helper_rgmii_internal_loopback(FIX_IPD_OUTPORT); - - /* - * Disable reception on all ports so if traffic is present it - * will not interfere. - */ - cvmx_write_csr(CVMX_ASXX_RX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT)), 0); - - cvmx_wait(100000000ull); - - for (retry_loop_cnt = 0; retry_loop_cnt < 10; retry_loop_cnt++) { - retry_cnt = 100000; - wqe_pcnt = cvmx_read_csr(CVMX_IPD_PTR_COUNT); - pkt_pcnt = (wqe_pcnt >> 7) & 0x7f; - wqe_pcnt &= 0x7f; - - num_segs = (2 + pkt_pcnt - wqe_pcnt) & 3; - - if (num_segs == 0) - goto fix_ipd_exit; - - num_segs += 1; - - size = - FIX_IPD_FIRST_BUFF_PAYLOAD_BYTES + - ((num_segs - 1) * FIX_IPD_NON_FIRST_BUFF_PAYLOAD_BYTES) - - (FIX_IPD_NON_FIRST_BUFF_PAYLOAD_BYTES / 2); - - cvmx_write_csr(CVMX_ASXX_PRT_LOOP(INTERFACE(FIX_IPD_OUTPORT)), - 1 << INDEX(FIX_IPD_OUTPORT)); - CVMX_SYNC; - - g_buffer.u64 = 0; - g_buffer.s.addr = - cvmx_ptr_to_phys(cvmx_fpa_alloc(CVMX_FPA_WQE_POOL)); - if (g_buffer.s.addr == 0) { - cvmx_dprintf("WARNING: FIX_IPD_PTR_ALIGNMENT " - "buffer allocation failure.\n"); - goto fix_ipd_exit; - } - - g_buffer.s.pool = CVMX_FPA_WQE_POOL; - g_buffer.s.size = num_segs; - - pkt_buffer.u64 = 0; - pkt_buffer.s.addr = - cvmx_ptr_to_phys(cvmx_fpa_alloc(CVMX_FPA_PACKET_POOL)); - if (pkt_buffer.s.addr == 0) { - cvmx_dprintf("WARNING: FIX_IPD_PTR_ALIGNMENT " - "buffer allocation failure.\n"); - goto fix_ipd_exit; - } - pkt_buffer.s.i = 1; - pkt_buffer.s.pool = CVMX_FPA_PACKET_POOL; - pkt_buffer.s.size = FIX_IPD_FIRST_BUFF_PAYLOAD_BYTES; - - p64 = (uint64_t *) cvmx_phys_to_ptr(pkt_buffer.s.addr); - p64[0] = 0xffffffffffff0000ull; - p64[1] = 0x08004510ull; - p64[2] = ((uint64_t) (size - 14) << 48) | 0x5ae740004000ull; - p64[3] = 0x3a5fc0a81073c0a8ull; - - for (i = 0; i < num_segs; i++) { - if (i > 0) - pkt_buffer.s.size = - FIX_IPD_NON_FIRST_BUFF_PAYLOAD_BYTES; - - if (i == (num_segs - 1)) - pkt_buffer.s.i = 0; - - *(uint64_t *) cvmx_phys_to_ptr(g_buffer.s.addr + - 8 * i) = pkt_buffer.u64; - } - - /* Build the PKO command */ - pko_command.u64 = 0; - pko_command.s.segs = num_segs; - pko_command.s.total_bytes = size; - pko_command.s.dontfree = 0; - pko_command.s.gather = 1; - - gmx_cfg.u64 = - cvmx_read_csr(CVMX_GMXX_PRTX_CFG - (INDEX(FIX_IPD_OUTPORT), - INTERFACE(FIX_IPD_OUTPORT))); - gmx_cfg.s.en = 1; - cvmx_write_csr(CVMX_GMXX_PRTX_CFG - (INDEX(FIX_IPD_OUTPORT), - INTERFACE(FIX_IPD_OUTPORT)), gmx_cfg.u64); - cvmx_write_csr(CVMX_ASXX_TX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT)), - 1 << INDEX(FIX_IPD_OUTPORT)); - cvmx_write_csr(CVMX_ASXX_RX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT)), - 1 << INDEX(FIX_IPD_OUTPORT)); - - cvmx_write_csr(CVMX_GMXX_RXX_JABBER - (INDEX(FIX_IPD_OUTPORT), - INTERFACE(FIX_IPD_OUTPORT)), 65392 - 14 - 4); - cvmx_write_csr(CVMX_GMXX_RXX_FRM_MAX - (INDEX(FIX_IPD_OUTPORT), - INTERFACE(FIX_IPD_OUTPORT)), 65392 - 14 - 4); - - cvmx_pko_send_packet_prepare(FIX_IPD_OUTPORT, - cvmx_pko_get_base_queue - (FIX_IPD_OUTPORT), - CVMX_PKO_LOCK_CMD_QUEUE); - cvmx_pko_send_packet_finish(FIX_IPD_OUTPORT, - cvmx_pko_get_base_queue - (FIX_IPD_OUTPORT), pko_command, - g_buffer, CVMX_PKO_LOCK_CMD_QUEUE); - - CVMX_SYNC; - - do { - work = cvmx_pow_work_request_sync(CVMX_POW_WAIT); - retry_cnt--; - } while ((work == NULL) && (retry_cnt > 0)); - - if (!retry_cnt) - cvmx_dprintf("WARNING: FIX_IPD_PTR_ALIGNMENT " - "get_work() timeout occurred.\n"); - - /* Free packet */ - if (work) - cvmx_helper_free_packet_data(work); - } - -fix_ipd_exit: - - /* Return CSR configs to saved values */ - cvmx_write_csr(CVMX_GMXX_PRTX_CFG - (INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT)), - prtx_cfg); - cvmx_write_csr(CVMX_ASXX_TX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT)), - tx_ptr_en); - cvmx_write_csr(CVMX_ASXX_RX_PRT_EN(INTERFACE(FIX_IPD_OUTPORT)), - rx_ptr_en); - cvmx_write_csr(CVMX_GMXX_RXX_JABBER - (INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT)), - rxx_jabber); - cvmx_write_csr(CVMX_GMXX_RXX_FRM_MAX - (INDEX(FIX_IPD_OUTPORT), INTERFACE(FIX_IPD_OUTPORT)), - frame_max); - cvmx_write_csr(CVMX_ASXX_PRT_LOOP(INTERFACE(FIX_IPD_OUTPORT)), 0); - /* Set link to down so autonegotiation will set it up again */ - link_info.u64 = 0; - cvmx_helper_link_set(FIX_IPD_OUTPORT, link_info); - - /* - * Bring the link back up as autonegotiation is not done in - * user applications. - */ - cvmx_helper_link_autoconf(FIX_IPD_OUTPORT); - - CVMX_SYNC; - if (num_segs) - cvmx_dprintf("WARNING: FIX_IPD_PTR_ALIGNMENT failed.\n"); - - return !!num_segs; - -} - -/** - * Called after all internal packet IO paths are setup. This - * function enables IPD/PIP and begins packet input and output. - * - * Returns Zero on success, negative on failure - */ -int cvmx_helper_ipd_and_packet_input_enable(void) -{ - int num_interfaces; - int interface; - - /* Enable IPD */ - cvmx_ipd_enable(); - - /* - * Time to enable hardware ports packet input and output. Note - * that at this point IPD/PIP must be fully functional and PKO - * must be disabled - */ - num_interfaces = cvmx_helper_get_number_of_interfaces(); - for (interface = 0; interface < num_interfaces; interface++) { - if (cvmx_helper_ports_on_interface(interface) > 0) - __cvmx_helper_packet_hardware_enable(interface); - } - - /* Finally enable PKO now that the entire path is up and running */ - cvmx_pko_enable(); - - if ((OCTEON_IS_MODEL(OCTEON_CN31XX_PASS1) - || OCTEON_IS_MODEL(OCTEON_CN30XX_PASS1)) - && (cvmx_sysinfo_get()->board_type != CVMX_BOARD_TYPE_SIM)) - __cvmx_helper_errata_fix_ipd_ptr_alignment(); - return 0; -} -EXPORT_SYMBOL_GPL(cvmx_helper_ipd_and_packet_input_enable); - -/** - * Initialize the PIP, IPD, and PKO hardware to support - * simple priority based queues for the ethernet ports. Each - * port is configured with a number of priority queues based - * on CVMX_PKO_QUEUES_PER_PORT_* where each queue is lower - * priority than the previous. - * - * Returns Zero on success, non-zero on failure - */ -int cvmx_helper_initialize_packet_io_global(void) -{ - int result = 0; - int interface; - union cvmx_l2c_cfg l2c_cfg; - union cvmx_smix_en smix_en; - const int num_interfaces = cvmx_helper_get_number_of_interfaces(); - - /* - * CN52XX pass 1: Due to a bug in 2nd order CDR, it needs to - * be disabled. - */ - if (OCTEON_IS_MODEL(OCTEON_CN52XX_PASS1_0)) - __cvmx_helper_errata_qlm_disable_2nd_order_cdr(1); - - /* - * Tell L2 to give the IOB statically higher priority compared - * to the cores. This avoids conditions where IO blocks might - * be starved under very high L2 loads. - */ - l2c_cfg.u64 = cvmx_read_csr(CVMX_L2C_CFG); - l2c_cfg.s.lrf_arb_mode = 0; - l2c_cfg.s.rfb_arb_mode = 0; - cvmx_write_csr(CVMX_L2C_CFG, l2c_cfg.u64); - - /* Make sure SMI/MDIO is enabled so we can query PHYs */ - smix_en.u64 = cvmx_read_csr(CVMX_SMIX_EN(0)); - if (!smix_en.s.en) { - smix_en.s.en = 1; - cvmx_write_csr(CVMX_SMIX_EN(0), smix_en.u64); - } - - /* Newer chips actually have two SMI/MDIO interfaces */ - if (!OCTEON_IS_MODEL(OCTEON_CN3XXX) && - !OCTEON_IS_MODEL(OCTEON_CN58XX) && - !OCTEON_IS_MODEL(OCTEON_CN50XX)) { - smix_en.u64 = cvmx_read_csr(CVMX_SMIX_EN(1)); - if (!smix_en.s.en) { - smix_en.s.en = 1; - cvmx_write_csr(CVMX_SMIX_EN(1), smix_en.u64); - } - } - - cvmx_pko_initialize_global(); - for (interface = 0; interface < num_interfaces; interface++) { - result |= cvmx_helper_interface_probe(interface); - if (cvmx_helper_ports_on_interface(interface) > 0) - cvmx_dprintf("Interface %d has %d ports (%s)\n", - interface, - cvmx_helper_ports_on_interface(interface), - cvmx_helper_interface_mode_to_string - (cvmx_helper_interface_get_mode - (interface))); - result |= __cvmx_helper_interface_setup_ipd(interface); - result |= __cvmx_helper_interface_setup_pko(interface); - } - - result |= __cvmx_helper_global_setup_ipd(); - result |= __cvmx_helper_global_setup_pko(); - - /* Enable any flow control and backpressure */ - result |= __cvmx_helper_global_setup_backpressure(); - -#if CVMX_HELPER_ENABLE_IPD - result |= cvmx_helper_ipd_and_packet_input_enable(); -#endif - return result; -} -EXPORT_SYMBOL_GPL(cvmx_helper_initialize_packet_io_global); - -/** - * Does core local initialization for packet io - * - * Returns Zero on success, non-zero on failure - */ -int cvmx_helper_initialize_packet_io_local(void) -{ - return cvmx_pko_initialize_local(); -} - -/** - * Auto configure an IPD/PKO port link state and speed. This - * function basically does the equivalent of: - * cvmx_helper_link_set(ipd_port, cvmx_helper_link_get(ipd_port)); - * - * @ipd_port: IPD/PKO port to auto configure - * - * Returns Link state after configure - */ -cvmx_helper_link_info_t cvmx_helper_link_autoconf(int ipd_port) -{ - cvmx_helper_link_info_t link_info; - int interface = cvmx_helper_get_interface_num(ipd_port); - int index = cvmx_helper_get_interface_index_num(ipd_port); - - if (index >= cvmx_helper_ports_on_interface(interface)) { - link_info.u64 = 0; - return link_info; - } - - link_info = cvmx_helper_link_get(ipd_port); - if (link_info.u64 == port_link_info[ipd_port].u64) - return link_info; - - /* If we fail to set the link speed, port_link_info will not change */ - cvmx_helper_link_set(ipd_port, link_info); - - /* - * port_link_info should be the current value, which will be - * different than expect if cvmx_helper_link_set() failed. - */ - return port_link_info[ipd_port]; -} -EXPORT_SYMBOL_GPL(cvmx_helper_link_autoconf); - -/** - * Return the link state of an IPD/PKO port as returned by - * auto negotiation. The result of this function may not match - * Octeon's link config if auto negotiation has changed since - * the last call to cvmx_helper_link_set(). - * - * @ipd_port: IPD/PKO port to query - * - * Returns Link state - */ -cvmx_helper_link_info_t cvmx_helper_link_get(int ipd_port) -{ - cvmx_helper_link_info_t result; - int interface = cvmx_helper_get_interface_num(ipd_port); - int index = cvmx_helper_get_interface_index_num(ipd_port); - - /* The default result will be a down link unless the code below - changes it */ - result.u64 = 0; - - if (index >= cvmx_helper_ports_on_interface(interface)) - return result; - - switch (cvmx_helper_interface_get_mode(interface)) { - case CVMX_HELPER_INTERFACE_MODE_DISABLED: - case CVMX_HELPER_INTERFACE_MODE_PCIE: - /* Network links are not supported */ - break; - case CVMX_HELPER_INTERFACE_MODE_XAUI: - result = __cvmx_helper_xaui_link_get(ipd_port); - break; - case CVMX_HELPER_INTERFACE_MODE_GMII: - if (index == 0) - result = __cvmx_helper_rgmii_link_get(ipd_port); - else { - result.s.full_duplex = 1; - result.s.link_up = 1; - result.s.speed = 1000; - } - break; - case CVMX_HELPER_INTERFACE_MODE_RGMII: - result = __cvmx_helper_rgmii_link_get(ipd_port); - break; - case CVMX_HELPER_INTERFACE_MODE_SPI: - result = __cvmx_helper_spi_link_get(ipd_port); - break; - case CVMX_HELPER_INTERFACE_MODE_SGMII: - case CVMX_HELPER_INTERFACE_MODE_PICMG: - result = __cvmx_helper_sgmii_link_get(ipd_port); - break; - case CVMX_HELPER_INTERFACE_MODE_NPI: - case CVMX_HELPER_INTERFACE_MODE_LOOP: - /* Network links are not supported */ - break; - } - return result; -} -EXPORT_SYMBOL_GPL(cvmx_helper_link_get); - -/** - * Configure an IPD/PKO port for the specified link state. This - * function does not influence auto negotiation at the PHY level. - * The passed link state must always match the link state returned - * by cvmx_helper_link_get(). It is normally best to use - * cvmx_helper_link_autoconf() instead. - * - * @ipd_port: IPD/PKO port to configure - * @link_info: The new link state - * - * Returns Zero on success, negative on failure - */ -int cvmx_helper_link_set(int ipd_port, cvmx_helper_link_info_t link_info) -{ - int result = -1; - int interface = cvmx_helper_get_interface_num(ipd_port); - int index = cvmx_helper_get_interface_index_num(ipd_port); - - if (index >= cvmx_helper_ports_on_interface(interface)) - return -1; - - switch (cvmx_helper_interface_get_mode(interface)) { - case CVMX_HELPER_INTERFACE_MODE_DISABLED: - case CVMX_HELPER_INTERFACE_MODE_PCIE: - break; - case CVMX_HELPER_INTERFACE_MODE_XAUI: - result = __cvmx_helper_xaui_link_set(ipd_port, link_info); - break; - /* - * RGMII/GMII/MII are all treated about the same. Most - * functions refer to these ports as RGMII. - */ - case CVMX_HELPER_INTERFACE_MODE_RGMII: - case CVMX_HELPER_INTERFACE_MODE_GMII: - result = __cvmx_helper_rgmii_link_set(ipd_port, link_info); - break; - case CVMX_HELPER_INTERFACE_MODE_SPI: - result = __cvmx_helper_spi_link_set(ipd_port, link_info); - break; - case CVMX_HELPER_INTERFACE_MODE_SGMII: - case CVMX_HELPER_INTERFACE_MODE_PICMG: - result = __cvmx_helper_sgmii_link_set(ipd_port, link_info); - break; - case CVMX_HELPER_INTERFACE_MODE_NPI: - case CVMX_HELPER_INTERFACE_MODE_LOOP: - break; - } - /* Set the port_link_info here so that the link status is updated - no matter how cvmx_helper_link_set is called. We don't change - the value if link_set failed */ - if (result == 0) - port_link_info[ipd_port].u64 = link_info.u64; - return result; -} -EXPORT_SYMBOL_GPL(cvmx_helper_link_set); - -/** - * Configure a port for internal and/or external loopback. Internal loopback - * causes packets sent by the port to be received by Octeon. External loopback - * causes packets received from the wire to sent out again. - * - * @ipd_port: IPD/PKO port to loopback. - * @enable_internal: - * Non zero if you want internal loopback - * @enable_external: - * Non zero if you want external loopback - * - * Returns Zero on success, negative on failure. - */ -int cvmx_helper_configure_loopback(int ipd_port, int enable_internal, - int enable_external) -{ - int result = -1; - int interface = cvmx_helper_get_interface_num(ipd_port); - int index = cvmx_helper_get_interface_index_num(ipd_port); - - if (index >= cvmx_helper_ports_on_interface(interface)) - return -1; - - switch (cvmx_helper_interface_get_mode(interface)) { - case CVMX_HELPER_INTERFACE_MODE_DISABLED: - case CVMX_HELPER_INTERFACE_MODE_PCIE: - case CVMX_HELPER_INTERFACE_MODE_SPI: - case CVMX_HELPER_INTERFACE_MODE_NPI: - case CVMX_HELPER_INTERFACE_MODE_LOOP: - break; - case CVMX_HELPER_INTERFACE_MODE_XAUI: - result = - __cvmx_helper_xaui_configure_loopback(ipd_port, - enable_internal, - enable_external); - break; - case CVMX_HELPER_INTERFACE_MODE_RGMII: - case CVMX_HELPER_INTERFACE_MODE_GMII: - result = - __cvmx_helper_rgmii_configure_loopback(ipd_port, - enable_internal, - enable_external); - break; - case CVMX_HELPER_INTERFACE_MODE_SGMII: - case CVMX_HELPER_INTERFACE_MODE_PICMG: - result = - __cvmx_helper_sgmii_configure_loopback(ipd_port, - enable_internal, - enable_external); - break; - } - return result; -} -- 2.3.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/