/* SPDX-License-Identifier: BSD-3-Clause
*
- * Copyright 2016 NXP
+ * Copyright 2016,2018-2019 NXP
*
*/
#include <rte_log.h>
#include <rte_bus.h>
-#include <rte_eal_memconfig.h>
#include <rte_malloc.h>
#include <rte_devargs.h>
#include <rte_memcpy.h>
-#include <rte_ethdev.h>
+#include <rte_ethdev_driver.h>
#include <rte_fslmc.h>
#include <fslmc_vfio.h>
+#include "fslmc_logs.h"
-#define FSLMC_BUS_LOG(level, fmt, args...) \
- RTE_LOG(level, EAL, fmt "\n", ##args)
+#include <dpaax_iova_table.h>
+
+int dpaa2_logtype_bus;
#define VFIO_IOMMU_GROUP_PATH "/sys/kernel/iommu_groups"
+#define FSLMC_BUS_NAME fslmc
struct rte_fslmc_bus rte_fslmc_bus;
+uint8_t dpaa2_virt_mode;
+
+uint32_t
+rte_fslmc_get_device_count(enum rte_dpaa2_dev_type device_type)
+{
+ if (device_type >= DPAA2_DEVTYPE_MAX)
+ return 0;
+ return rte_fslmc_bus.device_count[device_type];
+}
+
+RTE_DEFINE_PER_LCORE(struct dpaa2_portal_dqrr, dpaa2_held_bufs);
static void
cleanup_fslmc_device_list(void)
TAILQ_INSERT_TAIL(&rte_fslmc_bus.device_list, newdev, next);
}
+static struct rte_devargs *
+fslmc_devargs_lookup(struct rte_dpaa2_device *dev)
+{
+ struct rte_devargs *devargs;
+ char dev_name[32];
+
+ RTE_EAL_DEVARGS_FOREACH("fslmc", devargs) {
+ devargs->bus->parse(devargs->name, &dev_name);
+ if (strcmp(dev_name, dev->device.name) == 0) {
+ DPAA2_BUS_INFO("**Devargs matched %s", dev_name);
+ return devargs;
+ }
+ }
+ return NULL;
+}
+
+static void
+dump_device_list(void)
+{
+ struct rte_dpaa2_device *dev;
+
+ /* Only if the log level has been set to Debugging, print list */
+ if (rte_log_can_log(dpaa2_logtype_bus, RTE_LOG_DEBUG)) {
+ DPAA2_BUS_LOG(DEBUG, "List of devices scanned on bus:");
+ TAILQ_FOREACH(dev, &rte_fslmc_bus.device_list, next) {
+ DPAA2_BUS_LOG(DEBUG, "\t\t%s", dev->device.name);
+ }
+ }
+}
+
static int
scan_one_fslmc_device(char *dev_name)
{
char *dup_dev_name, *t_ptr;
- struct rte_dpaa2_device *dev;
+ struct rte_dpaa2_device *dev = NULL;
+ int ret = -1;
if (!dev_name)
- return -1;
+ return ret;
/* Ignore the Container name itself */
if (!strncmp("dprc", dev_name, 4))
/* Creating a temporary copy to perform cut-parse over string */
dup_dev_name = strdup(dev_name);
if (!dup_dev_name) {
- FSLMC_BUS_LOG(ERR, "Out of memory.");
+ DPAA2_BUS_ERR("Unable to allocate device name memory");
return -ENOMEM;
}
*/
dev = calloc(1, sizeof(struct rte_dpaa2_device));
if (!dev) {
- FSLMC_BUS_LOG(ERR, "Out of memory.");
+ DPAA2_BUS_ERR("Unable to allocate device object");
free(dup_dev_name);
return -ENOMEM;
}
+ dev->device.bus = &rte_fslmc_bus.bus;
+
/* Parse the device name and ID */
t_ptr = strtok(dup_dev_name, ".");
if (!t_ptr) {
- FSLMC_BUS_LOG(ERR, "Incorrect device string observed.");
+ DPAA2_BUS_ERR("Invalid device found: (%s)", dup_dev_name);
+ ret = -EINVAL;
goto cleanup;
}
if (!strncmp("dpni", t_ptr, 4))
dev->dev_type = DPAA2_BPOOL;
else if (!strncmp("dpio", t_ptr, 4))
dev->dev_type = DPAA2_IO;
- else if (!strncmp("dpci", t_ptr, 5))
+ else if (!strncmp("dpci", t_ptr, 4))
dev->dev_type = DPAA2_CI;
else if (!strncmp("dpmcp", t_ptr, 5))
dev->dev_type = DPAA2_MPORTAL;
+ else if (!strncmp("dpdmai", t_ptr, 6))
+ dev->dev_type = DPAA2_QDMA;
+ else if (!strncmp("dpdmux", t_ptr, 6))
+ dev->dev_type = DPAA2_MUX;
+ else if (!strncmp("dprtc", t_ptr, 5))
+ dev->dev_type = DPAA2_DPRTC;
else
dev->dev_type = DPAA2_UNKNOWN;
t_ptr = strtok(NULL, ".");
if (!t_ptr) {
- FSLMC_BUS_LOG(ERR, "Incorrect device string observed (%s).",
- t_ptr);
+ DPAA2_BUS_ERR("Skipping invalid device (%s)", dup_dev_name);
+ ret = 0;
goto cleanup;
}
sscanf(t_ptr, "%hu", &dev->object_id);
dev->device.name = strdup(dev_name);
if (!dev->device.name) {
- FSLMC_BUS_LOG(ERR, "Out of memory.");
+ DPAA2_BUS_ERR("Unable to clone device name. Out of memory");
+ ret = -ENOMEM;
goto cleanup;
}
+ dev->device.devargs = fslmc_devargs_lookup(dev);
+
+ /* Update the device found into the device_count table */
+ rte_fslmc_bus.device_count[dev->dev_type]++;
/* Add device in the fslmc device list */
insert_in_device_list(dev);
free(dup_dev_name);
if (dev)
free(dev);
- return -1;
+ return ret;
+}
+
+static int
+rte_fslmc_parse(const char *name, void *addr)
+{
+ uint16_t dev_id;
+ char *t_ptr;
+ const char *sep;
+ uint8_t sep_exists = 0;
+ int ret = -1;
+
+ DPAA2_BUS_DEBUG("Parsing dev=(%s)", name);
+
+ /* There are multiple ways this can be called, with bus:dev, name=dev
+ * or just dev. In all cases, the 'addr' is actually a string.
+ */
+ sep = strchr(name, ':');
+ if (!sep) {
+ /* check for '=' */
+ sep = strchr(name, '=');
+ if (!sep)
+ sep_exists = 0;
+ else
+ sep_exists = 1;
+ } else
+ sep_exists = 1;
+
+ /* Check if starting part if either of 'fslmc:' or 'name=', separator
+ * exists.
+ */
+ if (sep_exists) {
+ /* If either of "fslmc" or "name" are starting part */
+ if (!strncmp(name, RTE_STR(FSLMC_BUS_NAME),
+ strlen(RTE_STR(FSLMC_BUS_NAME))) ||
+ (!strncmp(name, "name", strlen("name")))) {
+ goto jump_out;
+ } else {
+ DPAA2_BUS_DEBUG("Invalid device for matching (%s).",
+ name);
+ ret = -EINVAL;
+ goto err_out;
+ }
+ } else
+ sep = name;
+
+jump_out:
+ /* Validate device name */
+ if (strncmp("dpni", sep, 4) &&
+ strncmp("dpseci", sep, 6) &&
+ strncmp("dpcon", sep, 5) &&
+ strncmp("dpbp", sep, 4) &&
+ strncmp("dpio", sep, 4) &&
+ strncmp("dpci", sep, 4) &&
+ strncmp("dpmcp", sep, 5) &&
+ strncmp("dpdmai", sep, 6) &&
+ strncmp("dpdmux", sep, 6)) {
+ DPAA2_BUS_DEBUG("Unknown or unsupported device (%s)", sep);
+ ret = -EINVAL;
+ goto err_out;
+ }
+
+ t_ptr = strchr(sep, '.');
+ if (!t_ptr || sscanf(t_ptr + 1, "%hu", &dev_id) != 1) {
+ DPAA2_BUS_ERR("Missing device id in device name (%s)", sep);
+ ret = -EINVAL;
+ goto err_out;
+ }
+
+ if (addr)
+ strcpy(addr, sep);
+
+ ret = 0;
+err_out:
+ return ret;
}
static int
int groupid;
if (process_once) {
- FSLMC_BUS_LOG(DEBUG,
- "Fslmc bus already scanned. Not rescanning");
+ DPAA2_BUS_DEBUG("Fslmc bus already scanned. Not rescanning");
return 0;
}
process_once = 1;
goto scan_fail;
/* Scan devices on the group */
- sprintf(fslmc_dirpath, "%s/%d/devices", VFIO_IOMMU_GROUP_PATH,
- groupid);
+ sprintf(fslmc_dirpath, "%s/%s", SYSFS_FSL_MC_DEVICES, fslmc_container);
dir = opendir(fslmc_dirpath);
if (!dir) {
- FSLMC_BUS_LOG(ERR, "Unable to open VFIO group dir.");
+ DPAA2_BUS_ERR("Unable to open VFIO group directory");
goto scan_fail;
}
while ((entry = readdir(dir)) != NULL) {
- if (entry->d_name[0] == '.' || entry->d_type != DT_LNK)
+ if (entry->d_name[0] == '.' || entry->d_type != DT_DIR)
continue;
ret = scan_one_fslmc_device(entry->d_name);
device_count += 1;
}
- FSLMC_BUS_LOG(INFO, "fslmc: Bus scan completed");
-
closedir(dir);
+
+ DPAA2_BUS_INFO("FSLMC Bus scan completed");
+ /* If debugging is enabled, device list is dumped to log output */
+ dump_device_list();
+
return 0;
scan_fail_cleanup:
/* Remove all devices in the list */
cleanup_fslmc_device_list();
scan_fail:
- FSLMC_BUS_LOG(DEBUG, "FSLMC Bus Not Available. Skipping.");
+ DPAA2_BUS_DEBUG("FSLMC Bus Not Available. Skipping (%d)", ret);
/* Irrespective of failure, scan only return success */
return 0;
}
rte_fslmc_probe(void)
{
int ret = 0;
+ int probe_all;
+
struct rte_dpaa2_device *dev;
struct rte_dpaa2_driver *drv;
ret = fslmc_vfio_setup_group();
if (ret) {
- FSLMC_BUS_LOG(ERR, "Unable to setup VFIO %d", ret);
+ DPAA2_BUS_ERR("Unable to setup VFIO %d", ret);
return 0;
}
+ /* Map existing segments as well as, in case of hotpluggable memory,
+ * install callback handler.
+ */
+ if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
+ ret = rte_fslmc_vfio_dmamap();
+ if (ret) {
+ DPAA2_BUS_ERR("Unable to DMA map existing VAs: (%d)",
+ ret);
+ /* Not continuing ahead */
+ DPAA2_BUS_ERR("FSLMC VFIO Mapping failed");
+ return 0;
+ }
+ }
+
ret = fslmc_vfio_process_group();
if (ret) {
- FSLMC_BUS_LOG(ERR, "Unable to setup devices %d", ret);
+ DPAA2_BUS_ERR("Unable to setup devices %d", ret);
return 0;
}
+ probe_all = rte_fslmc_bus.bus.conf.scan_mode != RTE_BUS_SCAN_WHITELIST;
+
+ /* In case of PA, the FD addresses returned by qbman APIs are physical
+ * addresses, which need conversion into equivalent VA address for
+ * rte_mbuf. For that, a table (a serial array, in memory) is used to
+ * increase translation efficiency.
+ * This has to be done before probe as some device initialization
+ * (during) probe allocate memory (dpaa2_sec) which needs to be pinned
+ * to this table.
+ *
+ * Error is ignored as relevant logs are handled within dpaax and
+ * handling for unavailable dpaax table too is transparent to caller.
+ *
+ * And, the IOVA table is only applicable in case of PA mode.
+ */
+ if (rte_eal_iova_mode() == RTE_IOVA_PA)
+ dpaax_iova_table_populate();
+
TAILQ_FOREACH(dev, &rte_fslmc_bus.device_list, next) {
TAILQ_FOREACH(drv, &rte_fslmc_bus.driver_list, next) {
ret = rte_fslmc_match(drv, dev);
if (!drv->probe)
continue;
- ret = drv->probe(drv, dev);
- if (ret)
- FSLMC_BUS_LOG(ERR, "Unable to probe.\n");
+ if (rte_dev_is_probed(&dev->device))
+ continue;
+
+ if (dev->device.devargs &&
+ dev->device.devargs->policy == RTE_DEV_BLACKLISTED) {
+ DPAA2_BUS_LOG(DEBUG, "%s Blacklisted, skipping",
+ dev->device.name);
+ continue;
+ }
+
+ if (probe_all ||
+ (dev->device.devargs &&
+ dev->device.devargs->policy ==
+ RTE_DEV_WHITELISTED)) {
+ ret = drv->probe(drv, dev);
+ if (ret) {
+ DPAA2_BUS_ERR("Unable to probe");
+ } else {
+ dev->driver = drv;
+ dev->device.driver = &drv->driver;
+ }
+ }
break;
}
}
+ if (rte_eal_iova_mode() == RTE_IOVA_VA)
+ dpaa2_virt_mode = 1;
+
return 0;
}
rte_fslmc_find_device(const struct rte_device *start, rte_dev_cmp_t cmp,
const void *data)
{
+ const struct rte_dpaa2_device *dstart;
struct rte_dpaa2_device *dev;
- TAILQ_FOREACH(dev, &rte_fslmc_bus.device_list, next) {
- if (start && &dev->device == start) {
- start = NULL; /* starting point found */
- continue;
- }
+ DPAA2_BUS_DEBUG("Finding a device named %s\n", (const char *)data);
- if (cmp(&dev->device, data) == 0)
+ /* find_device is always called with an opaque object which should be
+ * passed along to the 'cmp' function iterating over all device obj
+ * on the bus.
+ */
+
+ if (start != NULL) {
+ dstart = RTE_DEV_TO_FSLMC_CONST(start);
+ dev = TAILQ_NEXT(dstart, next);
+ } else {
+ dev = TAILQ_FIRST(&rte_fslmc_bus.device_list);
+ }
+ while (dev != NULL) {
+ if (cmp(&dev->device, data) == 0) {
+ DPAA2_BUS_DEBUG("Found device (%s)\n",
+ dev->device.name);
return &dev->device;
+ }
+ dev = TAILQ_NEXT(dev, next);
}
return NULL;
fslmc_bus = driver->fslmc_bus;
+ /* Cleanup the PA->VA Translation table; From whereever this function
+ * is called from.
+ */
+ if (rte_eal_iova_mode() == RTE_IOVA_PA)
+ dpaax_iova_table_depopulate();
+
TAILQ_REMOVE(&fslmc_bus->driver_list, driver, next);
/* Update Bus references */
driver->fslmc_bus = NULL;
}
+/*
+ * All device has iova as va
+ */
+static inline int
+fslmc_all_device_support_iova(void)
+{
+ int ret = 0;
+ struct rte_dpaa2_device *dev;
+ struct rte_dpaa2_driver *drv;
+
+ TAILQ_FOREACH(dev, &rte_fslmc_bus.device_list, next) {
+ TAILQ_FOREACH(drv, &rte_fslmc_bus.driver_list, next) {
+ ret = rte_fslmc_match(drv, dev);
+ if (ret)
+ continue;
+ /* if the driver is not supporting IOVA */
+ if (!(drv->drv_flags & RTE_DPAA2_DRV_IOVA_AS_VA))
+ return 0;
+ }
+ }
+ return 1;
+}
+
/*
* Get iommu class of DPAA2 devices on the bus.
*/
static enum rte_iova_mode
rte_dpaa2_get_iommu_class(void)
{
+ bool is_vfio_noiommu_enabled = 1;
+ bool has_iova_va;
+
+ if (TAILQ_EMPTY(&rte_fslmc_bus.device_list))
+ return RTE_IOVA_DC;
+
+#ifdef RTE_LIBRTE_DPAA2_USE_PHYS_IOVA
return RTE_IOVA_PA;
+#endif
+
+ /* check if all devices on the bus support Virtual addressing or not */
+ has_iova_va = fslmc_all_device_support_iova();
+
+#ifdef VFIO_PRESENT
+ is_vfio_noiommu_enabled = rte_vfio_noiommu_is_enabled() == true ?
+ true : false;
+#endif
+
+ if (has_iova_va && !is_vfio_noiommu_enabled)
+ return RTE_IOVA_VA;
+
+ return RTE_IOVA_PA;
+}
+
+static int
+fslmc_bus_plug(struct rte_device *dev __rte_unused)
+{
+ /* No operation is performed while plugging the device */
+ return 0;
+}
+
+static int
+fslmc_bus_unplug(struct rte_device *dev __rte_unused)
+{
+ /* No operation is performed while unplugging the device */
+ return 0;
+}
+
+static void *
+fslmc_bus_dev_iterate(const void *start, const char *str,
+ const struct rte_dev_iterator *it __rte_unused)
+{
+ const struct rte_dpaa2_device *dstart;
+ struct rte_dpaa2_device *dev;
+ char *dup, *dev_name = NULL;
+
+ if (str == NULL) {
+ DPAA2_BUS_DEBUG("No device string");
+ return NULL;
+ }
+
+ /* Expectation is that device would be name=device_name */
+ if (strncmp(str, "name=", 5) != 0) {
+ DPAA2_BUS_DEBUG("Invalid device string (%s)\n", str);
+ return NULL;
+ }
+
+ /* Now that name=device_name format is available, split */
+ dup = strdup(str);
+ dev_name = dup + strlen("name=");
+
+ if (start != NULL) {
+ dstart = RTE_DEV_TO_FSLMC_CONST(start);
+ dev = TAILQ_NEXT(dstart, next);
+ } else {
+ dev = TAILQ_FIRST(&rte_fslmc_bus.device_list);
+ }
+
+ while (dev != NULL) {
+ if (strcmp(dev->device.name, dev_name) == 0) {
+ free(dup);
+ return &dev->device;
+ }
+ dev = TAILQ_NEXT(dev, next);
+ }
+
+ free(dup);
+ return NULL;
}
struct rte_fslmc_bus rte_fslmc_bus = {
.bus = {
.scan = rte_fslmc_scan,
.probe = rte_fslmc_probe,
+ .parse = rte_fslmc_parse,
.find_device = rte_fslmc_find_device,
.get_iommu_class = rte_dpaa2_get_iommu_class,
+ .plug = fslmc_bus_plug,
+ .unplug = fslmc_bus_unplug,
+ .dev_iterate = fslmc_bus_dev_iterate,
},
.device_list = TAILQ_HEAD_INITIALIZER(rte_fslmc_bus.device_list),
.driver_list = TAILQ_HEAD_INITIALIZER(rte_fslmc_bus.driver_list),
+ .device_count = {0},
};
-RTE_REGISTER_BUS(fslmc, rte_fslmc_bus.bus);
+RTE_REGISTER_BUS(FSLMC_BUS_NAME, rte_fslmc_bus.bus);
+
+RTE_INIT(fslmc_init_log)
+{
+ /* Bus level logs */
+ dpaa2_logtype_bus = rte_log_register("bus.fslmc");
+ if (dpaa2_logtype_bus >= 0)
+ rte_log_set_level(dpaa2_logtype_bus, RTE_LOG_NOTICE);
+}
git.droids-corp.org / dpdk.git / blobdiff