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Date: Fri, 1 May 2015 22:37:04 +0300
From: Aaro Koskinen <aaro.koskinen@....fi>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Ralf Baechle <ralf@...ux-mips.org>,
David Daney <ddaney.cavm@...il.com>,
David Daney <david.daney@...ium.com>
Cc: devel@...verdev.osuosl.org, linux-mips@...ux-mips.org,
linux-kernel@...r.kernel.org, Aaro Koskinen <aaro.koskinen@....fi>
Subject: [RFC PATCH 02/11] MIPS: OCTEON: move ethernet-specific helpers into a separate file
Move ethernet-specific helpers into a separate file.
Signed-off-by: Aaro Koskinen <aaro.koskinen@....fi>
---
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 <asm/octeon/octeon.h>
+#include <asm/octeon/cvmx-config.h>
+#include <asm/octeon/cvmx-fpa.h>
+#include <asm/octeon/cvmx-pip.h>
+#include <asm/octeon/cvmx-pko.h>
+#include <asm/octeon/cvmx-ipd.h>
+#include <asm/octeon/cvmx-spi.h>
+#include <asm/octeon/cvmx-helper.h>
+#include <asm/octeon/cvmx-helper-board.h>
+#include <asm/octeon/cvmx-pip-defs.h>
+#include <asm/octeon/cvmx-smix-defs.h>
+#include <asm/octeon/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 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 <asm/octeon/cvmx-config.h>
-#include <asm/octeon/cvmx-fpa.h>
-#include <asm/octeon/cvmx-pip.h>
-#include <asm/octeon/cvmx-pko.h>
-#include <asm/octeon/cvmx-ipd.h>
#include <asm/octeon/cvmx-spi.h>
#include <asm/octeon/cvmx-helper.h>
#include <asm/octeon/cvmx-helper-board.h>
-#include <asm/octeon/cvmx-pip-defs.h>
-#include <asm/octeon/cvmx-smix-defs.h>
-#include <asm/octeon/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[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
--
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