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freebsd/sys/dev/dpaa/fman.c
Justin Hibbits 0aeed3e993 Add support for the Freescale dTSEC DPAA-based ethernet controller.
Freescale's QorIQ line includes a new ethernet controller, based on their
Datapath Acceleration Architecture (DPAA).  This uses a combination of a Frame
manager, Buffer manager, and Queue manager to improve performance across all
interfaces by being able to pass data directly between hardware acceleration
interfaces.

As part of this import, Freescale's Netcomm Software (ncsw) driver is imported.
This was an attempt by Freescale to create an OS-agnostic sub-driver for
managing the hardware, using shims to interface to the OS-specific APIs.  This
work was abandoned, and Freescale's primary work is in the Linux driver (dual
BSD/GPL license).  Hence, this was imported directly to sys/contrib, rather than
going through the vendor area.  Going forward, FreeBSD-specific changes may be
made to the ncsw code, diverging from the upstream in potentially incompatible
ways.  An alternative could be to import the Linux driver itself, using the
linuxKPI layer, as that would maintain parity with the vendor-maintained driver.
However, the Linux driver has not been evaluated for reliability yet, and may
have issues with the import, whereas the ncsw-based driver in this commit was
completed by Semihalf 4 years ago, and is very stable.

Other SoC modules based on DPAA, which could be added in the future:
* Security and Encryption engine (SEC4.x, SEC5.x)
* RAID engine

Additional work to be done:
* Implement polling mode
* Test vlan support
* Add support for the Pattern Matching Engine, which can do regular expression
  matching on packets.

This driver has been tested on the P5020 QorIQ SoC.  Others listed in the
dtsec(4) manual page are expected to work as the same DPAA engine is included in
all.

Obtained from:	Semihalf
Relnotes:	Yes
Sponsored by:	Alex Perez/Inertial Computing
2016-02-29 03:38:00 +00:00

358 lines
7.8 KiB
C

/*-
* Copyright (c) 2011-2012 Semihalf.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/rman.h>
#include <sys/malloc.h>
#include <dev/fdt/fdt_common.h>
#include <dev/ofw/ofw_bus.h>
#include <dev/ofw/ofw_bus_subr.h>
#include "opt_platform.h"
#include <contrib/ncsw/inc/Peripherals/fm_ext.h>
#include <contrib/ncsw/inc/Peripherals/fm_muram_ext.h>
#include <contrib/ncsw/inc/ncsw_ext.h>
#include <contrib/ncsw/integrations/fman_ucode.h>
#include "fman.h"
/**
* @group FMan private defines.
* @{
*/
enum fman_irq_enum {
FMAN_IRQ_NUM = 0,
FMAN_ERR_IRQ_NUM = 1
};
enum fman_mu_ram_map {
FMAN_MURAM_OFF = 0x0,
FMAN_MURAM_SIZE = 0x28000
};
struct fman_config {
device_t fman_device;
uintptr_t mem_base_addr;
int irq_num;
int err_irq_num;
uint8_t fm_id;
t_FmExceptionsCallback *exception_callback;
t_FmBusErrorCallback *bus_error_callback;
};
/**
* @group FMan private methods/members.
* @{
*/
/**
* Frame Manager firmware.
* We use the same firmware for both P3041 and P2041 devices.
*/
const uint32_t fman_firmware[] = FMAN_UC_IMG;
const uint32_t fman_firmware_size = sizeof(fman_firmware);
static struct fman_softc *fm_sc = NULL;
static t_Handle
fman_init(struct fman_softc *sc, struct fman_config *cfg)
{
t_FmParams fm_params;
t_Handle muram_handle, fm_handle;
t_Error error;
t_FmRevisionInfo revision_info;
uint16_t clock;
uint32_t tmp, mod;
/* MURAM configuration */
muram_handle = FM_MURAM_ConfigAndInit(cfg->mem_base_addr +
FMAN_MURAM_OFF, FMAN_MURAM_SIZE);
if (muram_handle == NULL) {
device_printf(cfg->fman_device, "couldn't init FM MURAM module"
"\n");
return (NULL);
}
sc->muram_handle = muram_handle;
/* Fill in FM configuration */
fm_params.fmId = cfg->fm_id;
/* XXX we support only one partition thus each fman has master id */
fm_params.guestId = NCSW_MASTER_ID;
fm_params.baseAddr = cfg->mem_base_addr;
fm_params.h_FmMuram = muram_handle;
/* Get FMan clock in Hz */
if ((tmp = fman_get_clock(sc)) == 0)
return (NULL);
/* Convert FMan clock to MHz */
clock = (uint16_t)(tmp / 1000000);
mod = tmp % 1000000;
if (mod >= 500000)
++clock;
fm_params.fmClkFreq = clock;
fm_params.f_Exception = cfg->exception_callback;
fm_params.f_BusError = cfg->bus_error_callback;
fm_params.h_App = cfg->fman_device;
fm_params.irq = cfg->irq_num;
fm_params.errIrq = cfg->err_irq_num;
fm_params.firmware.size = fman_firmware_size;
fm_params.firmware.p_Code = (uint32_t*)fman_firmware;
fm_handle = FM_Config(&fm_params);
if (fm_handle == NULL) {
device_printf(cfg->fman_device, "couldn't configure FM "
"module\n");
goto err;
}
FM_ConfigResetOnInit(fm_handle, TRUE);
error = FM_Init(fm_handle);
if (error != E_OK) {
device_printf(cfg->fman_device, "couldn't init FM module\n");
goto err2;
}
error = FM_GetRevision(fm_handle, &revision_info);
if (error != E_OK) {
device_printf(cfg->fman_device, "couldn't get FM revision\n");
goto err2;
}
device_printf(cfg->fman_device, "Hardware version: %d.%d.\n",
revision_info.majorRev, revision_info.minorRev);
return (fm_handle);
err2:
FM_Free(fm_handle);
err:
FM_MURAM_Free(muram_handle);
return (NULL);
}
static void
fman_exception_callback(t_Handle app_handle, e_FmExceptions exception)
{
struct fman_softc *sc;
sc = app_handle;
device_printf(sc->dev, "FMan exception occurred.\n");
}
static void
fman_error_callback(t_Handle app_handle, e_FmPortType port_type,
uint8_t port_id, uint64_t addr, uint8_t tnum, uint16_t liodn)
{
struct fman_softc *sc;
sc = app_handle;
device_printf(sc->dev, "FMan error occurred.\n");
}
/** @} */
/**
* @group FMan driver interface.
* @{
*/
int
fman_get_handle(t_Handle *fmh)
{
if (fm_sc == NULL)
return (ENOMEM);
*fmh = fm_sc->fm_handle;
return (0);
}
int
fman_get_muram_handle(t_Handle *muramh)
{
if (fm_sc == NULL)
return (ENOMEM);
*muramh = fm_sc->muram_handle;
return (0);
}
int
fman_get_bushandle(vm_offset_t *fm_base)
{
if (fm_sc == NULL)
return (ENOMEM);
*fm_base = rman_get_bushandle(fm_sc->mem_res);
return (0);
}
int
fman_attach(device_t dev)
{
struct fman_softc *sc;
struct fman_config cfg;
sc = device_get_softc(dev);
sc->dev = dev;
fm_sc = sc;
/* Check if MallocSmart allocator is ready */
if (XX_MallocSmartInit() != E_OK) {
device_printf(dev, "could not initialize smart allocator.\n");
return (ENXIO);
}
XX_TrackInit();
sc->mem_rid = 0;
sc->mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->mem_rid,
RF_ACTIVE);
if (!sc->mem_res) {
device_printf(dev, "could not allocate memory.\n");
return (ENXIO);
}
sc->irq_rid = 0;
sc->irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
RF_ACTIVE);
if (!sc->irq_res) {
device_printf(dev, "could not allocate interrupt.\n");
goto err;
}
/*
* XXX: Fix FMan interrupt. This is workaround for the issue with
* interrupts directed to multiple CPUs by the interrupts subsystem.
* Workaround is to bind the interrupt to only one CPU0.
*/
XX_FmanFixIntr(rman_get_start(sc->irq_res));
sc->err_irq_rid = 1;
sc->err_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
&sc->err_irq_rid, RF_ACTIVE | RF_SHAREABLE);
if (!sc->err_irq_res) {
device_printf(dev, "could not allocate error interrupt.\n");
goto err;
}
/* Set FMan configuration */
cfg.fman_device = dev;
cfg.fm_id = device_get_unit(dev);
cfg.mem_base_addr = rman_get_bushandle(sc->mem_res);
cfg.irq_num = (int)sc->irq_res;
cfg.err_irq_num = (int)sc->err_irq_res;
cfg.exception_callback = fman_exception_callback;
cfg.bus_error_callback = fman_error_callback;
sc->fm_handle = fman_init(sc, &cfg);
if (sc->fm_handle == NULL) {
device_printf(dev, "could not be configured\n");
return (ENXIO);
}
return (bus_generic_attach(dev));
err:
fman_detach(dev);
return (ENXIO);
}
int
fman_detach(device_t dev)
{
struct fman_softc *sc;
sc = device_get_softc(dev);
if (sc->muram_handle) {
FM_MURAM_Free(sc->muram_handle);
}
if (sc->fm_handle) {
FM_Free(sc->fm_handle);
}
if (sc->mem_res) {
bus_release_resource(dev, SYS_RES_MEMORY, sc->mem_rid,
sc->mem_res);
}
if (sc->irq_res) {
bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid,
sc->irq_res);
}
if (sc->irq_res) {
bus_release_resource(dev, SYS_RES_IRQ, sc->err_irq_rid,
sc->err_irq_res);
}
return (0);
}
int
fman_suspend(device_t dev)
{
return (0);
}
int
fman_resume(device_t dev)
{
return (0);
}
int
fman_shutdown(device_t dev)
{
return (0);
}
/** @} */