New upstream version 17.11-rc3

Change-Id: I6a5baa40612fe0c20f30b5fa773a6cbbac63a685
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>

1 files changed, 612 insertions, 0 deletions

diff --git a/drivers/bus/dpaa/base/fman/fman.c b/drivers/bus/dpaa/base/fman/fman.c
new file mode 100644
index 00000000..3816dba5
--- /dev/null
+++ b/drivers/bus/dpaa/base/fman/fman.c
@@ -0,0 +1,612 @@
+/*-
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ *   BSD LICENSE
+ *
+ * Copyright 2010-2016 Freescale Semiconductor Inc.
+ * Copyright 2017 NXP.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * 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.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *   GPL LICENSE SUMMARY
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT HOLDERS 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/types.h>
+#include <sys/ioctl.h>
+#include <ifaddrs.h>
+
+/* This header declares the driver interface we implement */
+#include <fman.h>
+#include <of.h>
+#include <rte_dpaa_logs.h>
+
+#define QMI_PORT_REGS_OFFSET		0x400
+
+/* CCSR map address to access ccsr based register */
+void *fman_ccsr_map;
+/* fman version info */
+u16 fman_ip_rev;
+static int get_once;
+u32 fman_dealloc_bufs_mask_hi;
+u32 fman_dealloc_bufs_mask_lo;
+
+int fman_ccsr_map_fd = -1;
+static COMPAT_LIST_HEAD(__ifs);
+
+/* This is the (const) global variable that callers have read-only access to.
+ * Internally, we have read-write access directly to __ifs.
+ */
+const struct list_head *fman_if_list = &__ifs;
+
+static void
+if_destructor(struct __fman_if *__if)
+{
+	struct fman_if_bpool *bp, *tmpbp;
+
+	if (!__if)
+		return;
+
+	if (__if->__if.mac_type == fman_offline)
+		goto cleanup;
+
+	list_for_each_entry_safe(bp, tmpbp, &__if->__if.bpool_list, node) {
+		list_del(&bp->node);
+		free(bp);
+	}
+cleanup:
+	free(__if);
+}
+
+static int
+fman_get_ip_rev(const struct device_node *fman_node)
+{
+	const uint32_t *fman_addr;
+	uint64_t phys_addr;
+	uint64_t regs_size;
+	uint32_t ip_rev_1;
+	int _errno;
+
+	fman_addr = of_get_address(fman_node, 0, &regs_size, NULL);
+	if (!fman_addr) {
+		pr_err("of_get_address cannot return fman address\n");
+		return -EINVAL;
+	}
+	phys_addr = of_translate_address(fman_node, fman_addr);
+	if (!phys_addr) {
+		pr_err("of_translate_address failed\n");
+		return -EINVAL;
+	}
+	fman_ccsr_map = mmap(NULL, regs_size, PROT_READ | PROT_WRITE,
+			     MAP_SHARED, fman_ccsr_map_fd, phys_addr);
+	if (fman_ccsr_map == MAP_FAILED) {
+		pr_err("Can not map FMan ccsr base");
+		return -EINVAL;
+	}
+
+	ip_rev_1 = in_be32(fman_ccsr_map + FMAN_IP_REV_1);
+	fman_ip_rev = (ip_rev_1 & FMAN_IP_REV_1_MAJOR_MASK) >>
+			FMAN_IP_REV_1_MAJOR_SHIFT;
+
+	_errno = munmap(fman_ccsr_map, regs_size);
+	if (_errno)
+		pr_err("munmap() of FMan ccsr failed");
+
+	return 0;
+}
+
+static int
+fman_get_mac_index(uint64_t regs_addr_host, uint8_t *mac_idx)
+{
+	int ret = 0;
+
+	/*
+	 * MAC1 : E_0000h
+	 * MAC2 : E_2000h
+	 * MAC3 : E_4000h
+	 * MAC4 : E_6000h
+	 * MAC5 : E_8000h
+	 * MAC6 : E_A000h
+	 * MAC7 : E_C000h
+	 * MAC8 : E_E000h
+	 * MAC9 : F_0000h
+	 * MAC10: F_2000h
+	 */
+	switch (regs_addr_host) {
+	case 0xE0000:
+		*mac_idx = 1;
+		break;
+	case 0xE2000:
+		*mac_idx = 2;
+		break;
+	case 0xE4000:
+		*mac_idx = 3;
+		break;
+	case 0xE6000:
+		*mac_idx = 4;
+		break;
+	case 0xE8000:
+		*mac_idx = 5;
+		break;
+	case 0xEA000:
+		*mac_idx = 6;
+		break;
+	case 0xEC000:
+		*mac_idx = 7;
+		break;
+	case 0xEE000:
+		*mac_idx = 8;
+		break;
+	case 0xF0000:
+		*mac_idx = 9;
+		break;
+	case 0xF2000:
+		*mac_idx = 10;
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static int
+fman_if_init(const struct device_node *dpa_node)
+{
+	const char *rprop, *mprop;
+	uint64_t phys_addr;
+	struct __fman_if *__if;
+	struct fman_if_bpool *bpool;
+
+	const phandle *mac_phandle, *ports_phandle, *pools_phandle;
+	const phandle *tx_channel_id = NULL, *mac_addr, *cell_idx;
+	const phandle *rx_phandle, *tx_phandle;
+	uint64_t tx_phandle_host[4] = {0};
+	uint64_t rx_phandle_host[4] = {0};
+	uint64_t regs_addr_host = 0;
+	uint64_t cell_idx_host = 0;
+
+	const struct device_node *mac_node = NULL, *tx_node;
+	const struct device_node *pool_node, *fman_node, *rx_node;
+	const uint32_t *regs_addr = NULL;
+	const char *mname, *fname;
+	const char *dname = dpa_node->full_name;
+	size_t lenp;
+	int _errno;
+	const char *char_prop;
+	uint32_t na;
+
+	if (of_device_is_available(dpa_node) == false)
+		return 0;
+
+	rprop = "fsl,qman-frame-queues-rx";
+	mprop = "fsl,fman-mac";
+
+	/* Allocate an object for this network interface */
+	__if = malloc(sizeof(*__if));
+	if (!__if) {
+		FMAN_ERR(-ENOMEM, "malloc(%zu)\n", sizeof(*__if));
+		goto err;
+	}
+	memset(__if, 0, sizeof(*__if));
+	INIT_LIST_HEAD(&__if->__if.bpool_list);
+	strncpy(__if->node_path, dpa_node->full_name, PATH_MAX - 1);
+	__if->node_path[PATH_MAX - 1] = '\0';
+
+	/* Obtain the MAC node used by this interface except macless */
+	mac_phandle = of_get_property(dpa_node, mprop, &lenp);
+	if (!mac_phandle) {
+		FMAN_ERR(-EINVAL, "%s: no %s\n", dname, mprop);
+		goto err;
+	}
+	assert(lenp == sizeof(phandle));
+	mac_node = of_find_node_by_phandle(*mac_phandle);
+	if (!mac_node) {
+		FMAN_ERR(-ENXIO, "%s: bad 'fsl,fman-mac\n", dname);
+		goto err;
+	}
+	mname = mac_node->full_name;
+
+	/* Map the CCSR regs for the MAC node */
+	regs_addr = of_get_address(mac_node, 0, &__if->regs_size, NULL);
+	if (!regs_addr) {
+		FMAN_ERR(-EINVAL, "of_get_address(%s)\n", mname);
+		goto err;
+	}
+	phys_addr = of_translate_address(mac_node, regs_addr);
+	if (!phys_addr) {
+		FMAN_ERR(-EINVAL, "of_translate_address(%s, %p)\n",
+			 mname, regs_addr);
+		goto err;
+	}
+	__if->ccsr_map = mmap(NULL, __if->regs_size,
+			      PROT_READ | PROT_WRITE, MAP_SHARED,
+			      fman_ccsr_map_fd, phys_addr);
+	if (__if->ccsr_map == MAP_FAILED) {
+		FMAN_ERR(-errno, "mmap(0x%"PRIx64")\n", phys_addr);
+		goto err;
+	}
+	na = of_n_addr_cells(mac_node);
+	/* Get rid of endianness (issues). Convert to host byte order */
+	regs_addr_host = of_read_number(regs_addr, na);
+
+
+	/* Get the index of the Fman this i/f belongs to */
+	fman_node = of_get_parent(mac_node);
+	na = of_n_addr_cells(mac_node);
+	if (!fman_node) {
+		FMAN_ERR(-ENXIO, "of_get_parent(%s)\n", mname);
+		goto err;
+	}
+	fname = fman_node->full_name;
+	cell_idx = of_get_property(fman_node, "cell-index", &lenp);
+	if (!cell_idx) {
+		FMAN_ERR(-ENXIO, "%s: no cell-index)\n", fname);
+		goto err;
+	}
+	assert(lenp == sizeof(*cell_idx));
+	cell_idx_host = of_read_number(cell_idx, lenp / sizeof(phandle));
+	__if->__if.fman_idx = cell_idx_host;
+	if (!get_once) {
+		_errno = fman_get_ip_rev(fman_node);
+		if (_errno) {
+			FMAN_ERR(-ENXIO, "%s: ip_rev is not available\n",
+				 fname);
+			goto err;
+		}
+	}
+
+	if (fman_ip_rev >= FMAN_V3) {
+		/*
+		 * Set A2V, OVOM, EBD bits in contextA to allow external
+		 * buffer deallocation by fman.
+		 */
+		fman_dealloc_bufs_mask_hi = FMAN_V3_CONTEXTA_EN_A2V |
+						FMAN_V3_CONTEXTA_EN_OVOM;
+		fman_dealloc_bufs_mask_lo = FMAN_V3_CONTEXTA_EN_EBD;
+	} else {
+		fman_dealloc_bufs_mask_hi = 0;
+		fman_dealloc_bufs_mask_lo = 0;
+	}
+	/* Is the MAC node 1G, 10G? */
+	__if->__if.is_memac = 0;
+
+	if (of_device_is_compatible(mac_node, "fsl,fman-1g-mac"))
+		__if->__if.mac_type = fman_mac_1g;
+	else if (of_device_is_compatible(mac_node, "fsl,fman-10g-mac"))
+		__if->__if.mac_type = fman_mac_10g;
+	else if (of_device_is_compatible(mac_node, "fsl,fman-memac")) {
+		__if->__if.is_memac = 1;
+		char_prop = of_get_property(mac_node, "phy-connection-type",
+					    NULL);
+		if (!char_prop) {
+			printf("memac: unknown MII type assuming 1G\n");
+			/* Right now forcing memac to 1g in case of error*/
+			__if->__if.mac_type = fman_mac_1g;
+		} else {
+			if (strstr(char_prop, "sgmii"))
+				__if->__if.mac_type = fman_mac_1g;
+			else if (strstr(char_prop, "rgmii")) {
+				__if->__if.mac_type = fman_mac_1g;
+				__if->__if.is_rgmii = 1;
+			} else if (strstr(char_prop, "xgmii"))
+				__if->__if.mac_type = fman_mac_10g;
+		}
+	} else {
+		FMAN_ERR(-EINVAL, "%s: unknown MAC type\n", mname);
+		goto err;
+	}
+
+	/*
+	 * For MAC ports, we cannot rely on cell-index. In
+	 * T2080, two of the 10G ports on single FMAN have same
+	 * duplicate cell-indexes as the other two 10G ports on
+	 * same FMAN. Hence, we now rely upon addresses of the
+	 * ports from device tree to deduce the index.
+	 */
+
+	_errno = fman_get_mac_index(regs_addr_host, &__if->__if.mac_idx);
+	if (_errno) {
+		FMAN_ERR(-EINVAL, "Invalid register address: %lu",
+			 regs_addr_host);
+		goto err;
+	}
+
+	/* Extract the MAC address for private and shared interfaces */
+	mac_addr = of_get_property(mac_node, "local-mac-address",
+				   &lenp);
+	if (!mac_addr) {
+		FMAN_ERR(-EINVAL, "%s: no local-mac-address\n",
+			 mname);
+		goto err;
+	}
+	memcpy(&__if->__if.mac_addr, mac_addr, ETHER_ADDR_LEN);
+
+	/* Extract the Tx port (it's the second of the two port handles)
+	 * and get its channel ID
+	 */
+	ports_phandle = of_get_property(mac_node, "fsl,port-handles",
+					&lenp);
+	if (!ports_phandle)
+		ports_phandle = of_get_property(mac_node, "fsl,fman-ports",
+						&lenp);
+	if (!ports_phandle) {
+		FMAN_ERR(-EINVAL, "%s: no fsl,port-handles\n",
+			 mname);
+		goto err;
+	}
+	assert(lenp == (2 * sizeof(phandle)));
+	tx_node = of_find_node_by_phandle(ports_phandle[1]);
+	if (!tx_node) {
+		FMAN_ERR(-ENXIO, "%s: bad fsl,port-handle[1]\n", mname);
+		goto err;
+	}
+	/* Extract the channel ID (from tx-port-handle) */
+	tx_channel_id = of_get_property(tx_node, "fsl,qman-channel-id",
+					&lenp);
+	if (!tx_channel_id) {
+		FMAN_ERR(-EINVAL, "%s: no fsl-qman-channel-id\n",
+			 tx_node->full_name);
+		goto err;
+	}
+
+	rx_node = of_find_node_by_phandle(ports_phandle[0]);
+	if (!rx_node) {
+		FMAN_ERR(-ENXIO, "%s: bad fsl,port-handle[0]\n", mname);
+		goto err;
+	}
+	regs_addr = of_get_address(rx_node, 0, &__if->regs_size, NULL);
+	if (!regs_addr) {
+		FMAN_ERR(-EINVAL, "of_get_address(%s)\n", mname);
+		goto err;
+	}
+	phys_addr = of_translate_address(rx_node, regs_addr);
+	if (!phys_addr) {
+		FMAN_ERR(-EINVAL, "of_translate_address(%s, %p)\n",
+			 mname, regs_addr);
+		goto err;
+	}
+	__if->bmi_map = mmap(NULL, __if->regs_size,
+				 PROT_READ | PROT_WRITE, MAP_SHARED,
+				 fman_ccsr_map_fd, phys_addr);
+	if (__if->bmi_map == MAP_FAILED) {
+		FMAN_ERR(-errno, "mmap(0x%"PRIx64")\n", phys_addr);
+		goto err;
+	}
+
+	/* No channel ID for MAC-less */
+	assert(lenp == sizeof(*tx_channel_id));
+	na = of_n_addr_cells(mac_node);
+	__if->__if.tx_channel_id = of_read_number(tx_channel_id, na);
+
+	/* Extract the Rx FQIDs. (Note, the device representation is silly,
+	 * there are "counts" that must always be 1.)
+	 */
+	rx_phandle = of_get_property(dpa_node, rprop, &lenp);
+	if (!rx_phandle) {
+		FMAN_ERR(-EINVAL, "%s: no fsl,qman-frame-queues-rx\n", dname);
+		goto err;
+	}
+
+	assert(lenp == (4 * sizeof(phandle)));
+
+	na = of_n_addr_cells(mac_node);
+	/* Get rid of endianness (issues). Convert to host byte order */
+	rx_phandle_host[0] = of_read_number(&rx_phandle[0], na);
+	rx_phandle_host[1] = of_read_number(&rx_phandle[1], na);
+	rx_phandle_host[2] = of_read_number(&rx_phandle[2], na);
+	rx_phandle_host[3] = of_read_number(&rx_phandle[3], na);
+
+	assert((rx_phandle_host[1] == 1) && (rx_phandle_host[3] == 1));
+	__if->__if.fqid_rx_err = rx_phandle_host[0];
+	__if->__if.fqid_rx_def = rx_phandle_host[2];
+
+	/* Extract the Tx FQIDs */
+	tx_phandle = of_get_property(dpa_node,
+				     "fsl,qman-frame-queues-tx", &lenp);
+	if (!tx_phandle) {
+		FMAN_ERR(-EINVAL, "%s: no fsl,qman-frame-queues-tx\n", dname);
+		goto err;
+	}
+
+	assert(lenp == (4 * sizeof(phandle)));
+	/*TODO: Fix for other cases also */
+	na = of_n_addr_cells(mac_node);
+	/* Get rid of endianness (issues). Convert to host byte order */
+	tx_phandle_host[0] = of_read_number(&tx_phandle[0], na);
+	tx_phandle_host[1] = of_read_number(&tx_phandle[1], na);
+	tx_phandle_host[2] = of_read_number(&tx_phandle[2], na);
+	tx_phandle_host[3] = of_read_number(&tx_phandle[3], na);
+	assert((tx_phandle_host[1] == 1) && (tx_phandle_host[3] == 1));
+	__if->__if.fqid_tx_err = tx_phandle_host[0];
+	__if->__if.fqid_tx_confirm = tx_phandle_host[2];
+
+	/* Obtain the buffer pool nodes used by this interface */
+	pools_phandle = of_get_property(dpa_node, "fsl,bman-buffer-pools",
+					&lenp);
+	if (!pools_phandle) {
+		FMAN_ERR(-EINVAL, "%s: no fsl,bman-buffer-pools\n", dname);
+		goto err;
+	}
+	/* For each pool, parse the corresponding node and add a pool object
+	 * to the interface's "bpool_list"
+	 */
+	assert(lenp && !(lenp % sizeof(phandle)));
+	while (lenp) {
+		size_t proplen;
+		const phandle *prop;
+		uint64_t bpid_host = 0;
+		uint64_t bpool_host[6] = {0};
+		const char *pname;
+		/* Allocate an object for the pool */
+		bpool = malloc(sizeof(*bpool));
+		if (!bpool) {
+			FMAN_ERR(-ENOMEM, "malloc(%zu)\n", sizeof(*bpool));
+			goto err;
+		}
+		/* Find the pool node */
+		pool_node = of_find_node_by_phandle(*pools_phandle);
+		if (!pool_node) {
+			FMAN_ERR(-ENXIO, "%s: bad fsl,bman-buffer-pools\n",
+				 dname);
+			goto err;
+		}
+		pname = pool_node->full_name;
+		/* Extract the BPID property */
+		prop = of_get_property(pool_node, "fsl,bpid", &proplen);
+		if (!prop) {
+			FMAN_ERR(-EINVAL, "%s: no fsl,bpid\n", pname);
+			goto err;
+		}
+		assert(proplen == sizeof(*prop));
+		na = of_n_addr_cells(mac_node);
+		/* Get rid of endianness (issues).
+		 * Convert to host byte-order
+		 */
+		bpid_host = of_read_number(prop, na);
+		bpool->bpid = bpid_host;
+		/* Extract the cfg property (count/size/addr). "fsl,bpool-cfg"
+		 * indicates for the Bman driver to seed the pool.
+		 * "fsl,bpool-ethernet-cfg" is used by the network driver. The
+		 * two are mutually exclusive, so check for either of them.
+		 */
+		prop = of_get_property(pool_node, "fsl,bpool-cfg",
+				       &proplen);
+		if (!prop)
+			prop = of_get_property(pool_node,
+					       "fsl,bpool-ethernet-cfg",
+					       &proplen);
+		if (!prop) {
+			/* It's OK for there to be no bpool-cfg */
+			bpool->count = bpool->size = bpool->addr = 0;
+		} else {
+			assert(proplen == (6 * sizeof(*prop)));
+			na = of_n_addr_cells(mac_node);
+			/* Get rid of endianness (issues).
+			 * Convert to host byte order
+			 */
+			bpool_host[0] = of_read_number(&prop[0], na);
+			bpool_host[1] = of_read_number(&prop[1], na);
+			bpool_host[2] = of_read_number(&prop[2], na);
+			bpool_host[3] = of_read_number(&prop[3], na);
+			bpool_host[4] = of_read_number(&prop[4], na);
+			bpool_host[5] = of_read_number(&prop[5], na);
+
+			bpool->count = ((uint64_t)bpool_host[0] << 32) |
+					bpool_host[1];
+			bpool->size = ((uint64_t)bpool_host[2] << 32) |
+					bpool_host[3];
+			bpool->addr = ((uint64_t)bpool_host[4] << 32) |
+					bpool_host[5];
+		}
+		/* Parsing of the pool is complete, add it to the interface
+		 * list.
+		 */
+		list_add_tail(&bpool->node, &__if->__if.bpool_list);
+		lenp -= sizeof(phandle);
+		pools_phandle++;
+	}
+
+	/* Parsing of the network interface is complete, add it to the list */
+	DPAA_BUS_LOG(DEBUG, "Found %s, Tx Channel = %x, FMAN = %x,"
+		    "Port ID = %x\n",
+		    dname, __if->__if.tx_channel_id, __if->__if.fman_idx,
+		    __if->__if.mac_idx);
+
+	list_add_tail(&__if->__if.node, &__ifs);
+	return 0;
+err:
+	if_destructor(__if);
+	return _errno;
+}
+
+int
+fman_init(void)
+{
+	const struct device_node *dpa_node;
+	int _errno;
+
+	/* If multiple dependencies try to initialise the Fman driver, don't
+	 * panic.
+	 */
+	if (fman_ccsr_map_fd != -1)
+		return 0;
+
+	fman_ccsr_map_fd = open(FMAN_DEVICE_PATH, O_RDWR);
+	if (unlikely(fman_ccsr_map_fd < 0)) {
+		DPAA_BUS_LOG(ERR, "Unable to open (/dev/mem)");
+		return fman_ccsr_map_fd;
+	}
+
+	for_each_compatible_node(dpa_node, NULL, "fsl,dpa-ethernet-init") {
+		_errno = fman_if_init(dpa_node);
+		if (_errno) {
+			FMAN_ERR(_errno, "if_init(%s)\n", dpa_node->full_name);
+			goto err;
+		}
+	}
+
+	return 0;
+err:
+	fman_finish();
+	return _errno;
+}
+
+void
+fman_finish(void)
+{
+	struct __fman_if *__if, *tmpif;
+
+	assert(fman_ccsr_map_fd != -1);
+
+	list_for_each_entry_safe(__if, tmpif, &__ifs, __if.node) {
+		int _errno;
+
+		/* disable Rx and Tx */
+		if ((__if->__if.mac_type == fman_mac_1g) &&
+		    (!__if->__if.is_memac))
+			out_be32(__if->ccsr_map + 0x100,
+				 in_be32(__if->ccsr_map + 0x100) & ~(u32)0x5);
+		else
+			out_be32(__if->ccsr_map + 8,
+				 in_be32(__if->ccsr_map + 8) & ~(u32)3);
+		/* release the mapping */
+		_errno = munmap(__if->ccsr_map, __if->regs_size);
+		if (unlikely(_errno < 0))
+			fprintf(stderr, "%s:%hu:%s(): munmap() = %d (%s)\n",
+				__FILE__, __LINE__, __func__,
+				-errno, strerror(errno));
+		printf("Tearing down %s\n", __if->node_path);
+		list_del(&__if->__if.node);
+		free(__if);
+	}
+
+	close(fman_ccsr_map_fd);
+	fman_ccsr_map_fd = -1;
+}