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-rw-r--r--sys/dev/dpaa/bman.c370
1 files changed, 370 insertions, 0 deletions
diff --git a/sys/dev/dpaa/bman.c b/sys/dev/dpaa/bman.c
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+++ b/sys/dev/dpaa/bman.c
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+/*-
+ * 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/bus.h>
+#include <sys/lock.h>
+#include <sys/module.h>
+#include <sys/mutex.h>
+#include <sys/proc.h>
+#include <sys/pcpu.h>
+#include <sys/rman.h>
+#include <sys/sched.h>
+
+#include <machine/tlb.h>
+
+#include "bman.h"
+
+devclass_t bman_devclass;
+
+static struct bman_softc *bman_sc;
+
+extern t_Handle bman_portal_setup(struct bman_softc *bsc);
+
+static void
+bman_exception(t_Handle h_App, e_BmExceptions exception)
+{
+ struct bman_softc *sc;
+ const char *message;
+
+ sc = h_App;
+
+ switch (exception) {
+ case e_BM_EX_INVALID_COMMAND:
+ message = "Invalid Command Verb";
+ break;
+ case e_BM_EX_FBPR_THRESHOLD:
+ message = "FBPR pool exhaused. Consider increasing "
+ "BMAN_MAX_BUFFERS";
+ break;
+ case e_BM_EX_SINGLE_ECC:
+ message = "Single bit ECC error";
+ break;
+ case e_BM_EX_MULTI_ECC:
+ message = "Multi bit ECC error";
+ break;
+ default:
+ message = "Unknown error";
+ }
+
+ device_printf(sc->sc_dev, "BMAN Exception: %s.\n", message);
+}
+
+int
+bman_attach(device_t dev)
+{
+ struct bman_softc *sc;
+ t_BmRevisionInfo rev;
+ t_Error error;
+ t_BmParam bp;
+
+ sc = device_get_softc(dev);
+ sc->sc_dev = dev;
+ bman_sc = sc;
+
+ /* Check if MallocSmart allocator is ready */
+ if (XX_MallocSmartInit() != E_OK)
+ return (ENXIO);
+
+ /* Allocate resources */
+ sc->sc_rrid = 0;
+ sc->sc_rres = bus_alloc_resource(dev, SYS_RES_MEMORY,
+ &sc->sc_rrid, 0, ~0, BMAN_CCSR_SIZE, RF_ACTIVE);
+ if (sc->sc_rres == NULL)
+ return (ENXIO);
+
+ sc->sc_irid = 0;
+ sc->sc_ires = bus_alloc_resource_any(sc->sc_dev, SYS_RES_IRQ,
+ &sc->sc_irid, RF_ACTIVE | RF_SHAREABLE);
+ if (sc->sc_ires == NULL)
+ goto err;
+
+ /* Initialize BMAN */
+ memset(&bp, 0, sizeof(bp));
+ bp.guestId = NCSW_MASTER_ID;
+ bp.baseAddress = rman_get_bushandle(sc->sc_rres);
+ bp.totalNumOfBuffers = BMAN_MAX_BUFFERS;
+ bp.f_Exception = bman_exception;
+ bp.h_App = sc;
+ bp.errIrq = (int)sc->sc_ires;
+ bp.partBpidBase = 0;
+ bp.partNumOfPools = BM_MAX_NUM_OF_POOLS;
+ printf("base address: %llx\n", (uint64_t)bp.baseAddress);
+
+ sc->sc_bh = BM_Config(&bp);
+ if (sc->sc_bh == NULL)
+ goto err;
+
+ /* Warn if there is less than 5% free FPBR's in pool */
+ error = BM_ConfigFbprThreshold(sc->sc_bh, (BMAN_MAX_BUFFERS / 8) / 20);
+ if (error != E_OK)
+ goto err;
+
+ error = BM_Init(sc->sc_bh);
+ if (error != E_OK)
+ goto err;
+
+ error = BM_GetRevision(sc->sc_bh, &rev);
+ if (error != E_OK)
+ goto err;
+
+ device_printf(dev, "Hardware version: %d.%d.\n",
+ rev.majorRev, rev.minorRev);
+
+ return (0);
+
+err:
+ bman_detach(dev);
+ return (ENXIO);
+}
+
+int
+bman_detach(device_t dev)
+{
+ struct bman_softc *sc;
+
+ sc = device_get_softc(dev);
+
+ if (sc->sc_bh != NULL)
+ BM_Free(sc->sc_bh);
+
+ if (sc->sc_ires != NULL)
+ bus_release_resource(dev, SYS_RES_IRQ,
+ sc->sc_irid, sc->sc_ires);
+
+ if (sc->sc_rres != NULL)
+ bus_release_resource(dev, SYS_RES_MEMORY,
+ sc->sc_rrid, sc->sc_rres);
+
+ return (0);
+}
+
+int
+bman_suspend(device_t dev)
+{
+
+ return (0);
+}
+
+int
+bman_resume(device_t dev)
+{
+
+ return (0);
+}
+
+int
+bman_shutdown(device_t dev)
+{
+
+ return (0);
+}
+
+/*
+ * BMAN API
+ */
+
+t_Handle
+bman_pool_create(uint8_t *bpid, uint16_t bufferSize, uint16_t maxBuffers,
+ uint16_t minBuffers, uint16_t allocBuffers, t_GetBufFunction *f_GetBuf,
+ t_PutBufFunction *f_PutBuf, uint32_t dep_sw_entry, uint32_t dep_sw_exit,
+ uint32_t dep_hw_entry, uint32_t dep_hw_exit,
+ t_BmDepletionCallback *f_Depletion, t_Handle h_BufferPool,
+ t_PhysToVirt *f_PhysToVirt, t_VirtToPhys *f_VirtToPhys)
+{
+ uint32_t thresholds[MAX_DEPLETION_THRESHOLDS];
+ struct bman_softc *sc;
+ t_Handle pool, portal;
+ t_BmPoolParam bpp;
+ int error;
+
+ sc = bman_sc;
+ pool = NULL;
+
+ sched_pin();
+
+ portal = bman_portal_setup(sc);
+ if (portal == NULL)
+ goto err;
+
+ memset(&bpp, 0, sizeof(bpp));
+ bpp.h_Bm = sc->sc_bh;
+ bpp.h_BmPortal = portal;
+ bpp.h_App = h_BufferPool;
+ bpp.numOfBuffers = allocBuffers;
+
+ bpp.bufferPoolInfo.h_BufferPool = h_BufferPool;
+ bpp.bufferPoolInfo.f_GetBuf = f_GetBuf;
+ bpp.bufferPoolInfo.f_PutBuf = f_PutBuf;
+ bpp.bufferPoolInfo.f_PhysToVirt = f_PhysToVirt;
+ bpp.bufferPoolInfo.f_VirtToPhys = f_VirtToPhys;
+ bpp.bufferPoolInfo.bufferSize = bufferSize;
+
+ pool = BM_POOL_Config(&bpp);
+ if (pool == NULL)
+ goto err;
+
+ /*
+ * Buffer context must be disabled on FreeBSD
+ * as it could cause memory corruption.
+ */
+ BM_POOL_ConfigBuffContextMode(pool, 0);
+
+ if (minBuffers != 0 || maxBuffers != 0) {
+ error = BM_POOL_ConfigStockpile(pool, maxBuffers, minBuffers);
+ if (error != E_OK)
+ goto err;
+ }
+
+ if (f_Depletion != NULL) {
+ thresholds[BM_POOL_DEP_THRESH_SW_ENTRY] = dep_sw_entry;
+ thresholds[BM_POOL_DEP_THRESH_SW_EXIT] = dep_sw_exit;
+ thresholds[BM_POOL_DEP_THRESH_HW_ENTRY] = dep_hw_entry;
+ thresholds[BM_POOL_DEP_THRESH_HW_EXIT] = dep_hw_exit;
+ error = BM_POOL_ConfigDepletion(pool, f_Depletion, thresholds);
+ if (error != E_OK)
+ goto err;
+ }
+
+ error = BM_POOL_Init(pool);
+ if (error != E_OK)
+ goto err;
+
+ *bpid = BM_POOL_GetId(pool);
+ sc->sc_bpool_cpu[*bpid] = PCPU_GET(cpuid);
+
+ sched_unpin();
+
+ return (pool);
+
+err:
+ if (pool != NULL)
+ BM_POOL_Free(pool);
+
+ sched_unpin();
+
+ return (NULL);
+}
+
+int
+bman_pool_destroy(t_Handle pool)
+{
+ struct bman_softc *sc;
+
+ sc = bman_sc;
+ thread_lock(curthread);
+ sched_bind(curthread, sc->sc_bpool_cpu[BM_POOL_GetId(pool)]);
+ thread_unlock(curthread);
+
+ BM_POOL_Free(pool);
+
+ thread_lock(curthread);
+ sched_unbind(curthread);
+ thread_unlock(curthread);
+
+ return (0);
+}
+
+int
+bman_pool_fill(t_Handle pool, uint16_t nbufs)
+{
+ struct bman_softc *sc;
+ t_Handle portal;
+ int error;
+
+ sc = bman_sc;
+ sched_pin();
+
+ portal = bman_portal_setup(sc);
+ if (portal == NULL) {
+ sched_unpin();
+ return (EIO);
+ }
+
+ error = BM_POOL_FillBufs(pool, portal, nbufs);
+
+ sched_unpin();
+
+ return ((error == E_OK) ? 0 : EIO);
+}
+
+void *
+bman_get_buffer(t_Handle pool)
+{
+ struct bman_softc *sc;
+ t_Handle portal;
+ void *buffer;
+
+ sc = bman_sc;
+ sched_pin();
+
+ portal = bman_portal_setup(sc);
+ if (portal == NULL) {
+ sched_unpin();
+ return (NULL);
+ }
+
+ buffer = BM_POOL_GetBuf(pool, portal);
+
+ sched_unpin();
+
+ return (buffer);
+}
+
+int
+bman_put_buffer(t_Handle pool, void *buffer)
+{
+ struct bman_softc *sc;
+ t_Handle portal;
+ int error;
+
+ sc = bman_sc;
+ sched_pin();
+
+ portal = bman_portal_setup(sc);
+ if (portal == NULL) {
+ sched_unpin();
+ return (EIO);
+ }
+
+ error = BM_POOL_PutBuf(pool, portal, buffer);
+
+ sched_unpin();
+
+ return ((error == E_OK) ? 0 : EIO);
+}
+
+uint32_t
+bman_count(t_Handle pool)
+{
+
+ return (BM_POOL_GetCounter(pool, e_BM_POOL_COUNTERS_CONTENT));
+}
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