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-rw-r--r--drivers/staging/octeon/cvmx-helper.c1058
1 files changed, 0 insertions, 1058 deletions
diff --git a/drivers/staging/octeon/cvmx-helper.c b/drivers/staging/octeon/cvmx-helper.c
deleted file mode 100644
index e9c5c836ceff..000000000000
--- a/drivers/staging/octeon/cvmx-helper.c
+++ /dev/null
@@ -1,1058 +0,0 @@
-/***********************license start***************
- * Author: Cavium Networks
- *
- * Contact: support@caviumnetworks.com
- * This file is part of the OCTEON SDK
- *
- * Copyright (c) 2003-2008 Cavium Networks
- *
- * This file is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, Version 2, as
- * published by the Free Software Foundation.
- *
- * This file is distributed in the hope that it will be useful, but
- * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
- * NONINFRINGEMENT. See the GNU General Public License for more
- * details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this file; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- * or visit http://www.gnu.org/licenses/.
- *
- * This file may also be available under a different license from Cavium.
- * Contact Cavium Networks for more information
- ***********************license end**************************************/
-
-/*
- *
- * Helper functions for common, but complicated tasks.
- *
- */
-#include <asm/octeon/octeon.h>
-
-#include "cvmx-config.h"
-
-#include "cvmx-fpa.h"
-#include "cvmx-pip.h"
-#include "cvmx-pko.h"
-#include "cvmx-ipd.h"
-#include "cvmx-spi.h"
-#include "cvmx-helper.h"
-#include "cvmx-helper-board.h"
-
-#include "cvmx-pip-defs.h"
-#include "cvmx-smix-defs.h"
-#include "cvmx-asxx-defs.h"
-
-/**
- * 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[4] = { 0, 0, 0, 0 };
-
-/* 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,
- * but the CNX0XX and CNX1XX are exceptions. These only support
- * one interface.
- *
- * Returns Number of interfaces on chip
- */
-int cvmx_helper_get_number_of_interfaces(void)
-{
- if (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN52XX))
- return 4;
- else
- return 3;
-}
-
-/**
- * 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];
-}
-
-/**
- * Get the operating mode of an interface. Depending on the Octeon
- * chip and configuration, this function returns an enumeration
- * of the type of packet I/O supported by an interface.
- *
- * @interface: Interface to probe
- *
- * Returns Mode of the interface. Unknown or unsupported interfaces return
- * DISABLED.
- */
-cvmx_helper_interface_mode_t cvmx_helper_interface_get_mode(int interface)
-{
- union cvmx_gmxx_inf_mode mode;
- if (interface == 2)
- return CVMX_HELPER_INTERFACE_MODE_NPI;
-
- if (interface == 3) {
- if (OCTEON_IS_MODEL(OCTEON_CN56XX)
- || OCTEON_IS_MODEL(OCTEON_CN52XX))
- return CVMX_HELPER_INTERFACE_MODE_LOOP;
- else
- return CVMX_HELPER_INTERFACE_MODE_DISABLED;
- }
-
- if (interface == 0
- && cvmx_sysinfo_get()->board_type == CVMX_BOARD_TYPE_CN3005_EVB_HS5
- && cvmx_sysinfo_get()->board_rev_major == 1) {
- /*
- * Lie about interface type of CN3005 board. This
- * board has a switch on port 1 like the other
- * evaluation boards, but it is connected over RGMII
- * instead of GMII. Report GMII mode so that the
- * speed is forced to 1 Gbit full duplex. Other than
- * some initial configuration (which does not use the
- * output of this function) there is no difference in
- * setup between GMII and RGMII modes.
- */
- return CVMX_HELPER_INTERFACE_MODE_GMII;
- }
-
- /* Interface 1 is always disabled on CN31XX and CN30XX */
- if ((interface == 1)
- && (OCTEON_IS_MODEL(OCTEON_CN31XX) || OCTEON_IS_MODEL(OCTEON_CN30XX)
- || OCTEON_IS_MODEL(OCTEON_CN50XX)
- || OCTEON_IS_MODEL(OCTEON_CN52XX)))
- return CVMX_HELPER_INTERFACE_MODE_DISABLED;
-
- mode.u64 = cvmx_read_csr(CVMX_GMXX_INF_MODE(interface));
-
- if (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN52XX)) {
- switch (mode.cn56xx.mode) {
- case 0:
- return CVMX_HELPER_INTERFACE_MODE_DISABLED;
- case 1:
- return CVMX_HELPER_INTERFACE_MODE_XAUI;
- case 2:
- return CVMX_HELPER_INTERFACE_MODE_SGMII;
- case 3:
- return CVMX_HELPER_INTERFACE_MODE_PICMG;
- default:
- return CVMX_HELPER_INTERFACE_MODE_DISABLED;
- }
- } else {
- if (!mode.s.en)
- return CVMX_HELPER_INTERFACE_MODE_DISABLED;
-
- if (mode.s.type) {
- if (OCTEON_IS_MODEL(OCTEON_CN38XX)
- || OCTEON_IS_MODEL(OCTEON_CN58XX))
- return CVMX_HELPER_INTERFACE_MODE_SPI;
- else
- return CVMX_HELPER_INTERFACE_MODE_GMII;
- } else
- return CVMX_HELPER_INTERFACE_MODE_RGMII;
- }
-}
-
-/**
- * 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)
-{
- /* 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:
- interface_port_count[interface] = 0;
- break;
- /* XAUI is a single high speed port */
- case CVMX_HELPER_INTERFACE_MODE_XAUI:
- interface_port_count[interface] =
- __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:
- interface_port_count[interface] =
- __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:
- interface_port_count[interface] =
- __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:
- interface_port_count[interface] =
- __cvmx_helper_sgmii_probe(interface);
- break;
- /* PCI target Network Packet Interface */
- case CVMX_HELPER_INTERFACE_MODE_NPI:
- interface_port_count[interface] =
- __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:
- interface_port_count[interface] =
- __cvmx_helper_loop_probe(interface);
- break;
- }
-
- interface_port_count[interface] =
- __cvmx_helper_board_interface_probe(interface,
- interface_port_count
- [interface]);
-
- /* 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 = interface_port_count[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 = interface_port_count[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 mtu;
- 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));
-
- mtu =
- cvmx_read_csr(CVMX_GMXX_RXX_JABBER
- (INDEX(FIX_IPD_OUTPORT),
- INTERFACE(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;
-}
-
-/**
- * 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;
-}
-
-/**
- * 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];
-}
-
-/**
- * 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;
-}
-
-/**
- * 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;
-}
-
-/**
- * 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;
-}

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