MIPS: Octeon: Move some Ethernet support files out of staging.

Signed-off-by: David Daney <david.daney@cavium.com>
Cc: linux-mips@linux-mips.org
Cc: netdev@vger.kernel.org
Cc: devel@driverdev.osuosl.org
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Patchwork: https://patchwork.linux-mips.org/patch/2942/
Patchwork: https://patchwork.linux-mips.org/patch/3012/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

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 e9c5c836cef..00000000000
--- 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;
-}