diff options
Diffstat (limited to 'drivers/bus/dpaa/dpaa_bus.c')
| -rw-r--r-- | drivers/bus/dpaa/dpaa_bus.c | 525 |
1 files changed, 525 insertions, 0 deletions
diff --git a/drivers/bus/dpaa/dpaa_bus.c b/drivers/bus/dpaa/dpaa_bus.c new file mode 100644 index 00000000..1cc8c893 --- /dev/null +++ b/drivers/bus/dpaa/dpaa_bus.c @@ -0,0 +1,525 @@ +/*- + * BSD LICENSE + * + * 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 NXP nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 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 + * OWNER 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. + */ +/* System headers */ +#include <stdio.h> +#include <inttypes.h> +#include <unistd.h> +#include <limits.h> +#include <sched.h> +#include <signal.h> +#include <pthread.h> +#include <sys/types.h> +#include <sys/syscall.h> + +#include <rte_byteorder.h> +#include <rte_common.h> +#include <rte_interrupts.h> +#include <rte_log.h> +#include <rte_debug.h> +#include <rte_pci.h> +#include <rte_atomic.h> +#include <rte_branch_prediction.h> +#include <rte_memory.h> +#include <rte_tailq.h> +#include <rte_eal.h> +#include <rte_alarm.h> +#include <rte_ether.h> +#include <rte_ethdev.h> +#include <rte_malloc.h> +#include <rte_ring.h> +#include <rte_bus.h> + +#include <rte_dpaa_bus.h> +#include <rte_dpaa_logs.h> + +#include <fsl_usd.h> +#include <fsl_qman.h> +#include <fsl_bman.h> +#include <of.h> +#include <netcfg.h> + +int dpaa_logtype_bus; +int dpaa_logtype_mempool; +int dpaa_logtype_pmd; + +struct rte_dpaa_bus rte_dpaa_bus; +struct netcfg_info *dpaa_netcfg; + +/* define a variable to hold the portal_key, once created.*/ +pthread_key_t dpaa_portal_key; + +RTE_DEFINE_PER_LCORE(bool, _dpaa_io); + +static inline void +dpaa_add_to_device_list(struct rte_dpaa_device *dev) +{ + TAILQ_INSERT_TAIL(&rte_dpaa_bus.device_list, dev, next); +} + +static inline void +dpaa_remove_from_device_list(struct rte_dpaa_device *dev) +{ + TAILQ_INSERT_TAIL(&rte_dpaa_bus.device_list, dev, next); +} + +/* + * Reads the SEC device from DTS + * Returns -1 if SEC devices not available, 0 otherwise + */ +static inline int +dpaa_sec_available(void) +{ + const struct device_node *caam_node; + + for_each_compatible_node(caam_node, NULL, "fsl,sec-v4.0") { + return 0; + } + + return -1; +} + +static void dpaa_clean_device_list(void); + +static int +dpaa_create_device_list(void) +{ + int i; + int ret; + struct rte_dpaa_device *dev; + struct fm_eth_port_cfg *cfg; + struct fman_if *fman_intf; + + /* Creating Ethernet Devices */ + for (i = 0; i < dpaa_netcfg->num_ethports; i++) { + dev = calloc(1, sizeof(struct rte_dpaa_device)); + if (!dev) { + DPAA_BUS_LOG(ERR, "Failed to allocate ETH devices"); + ret = -ENOMEM; + goto cleanup; + } + + cfg = &dpaa_netcfg->port_cfg[i]; + fman_intf = cfg->fman_if; + + /* Device identifiers */ + dev->id.fman_id = fman_intf->fman_idx + 1; + dev->id.mac_id = fman_intf->mac_idx; + dev->device_type = FSL_DPAA_ETH; + dev->id.dev_id = i; + + /* Create device name */ + memset(dev->name, 0, RTE_ETH_NAME_MAX_LEN); + sprintf(dev->name, "fm%d-mac%d", (fman_intf->fman_idx + 1), + fman_intf->mac_idx); + DPAA_BUS_LOG(DEBUG, "Device added: %s", dev->name); + dev->device.name = dev->name; + + dpaa_add_to_device_list(dev); + } + + rte_dpaa_bus.device_count = i; + + /* Unlike case of ETH, RTE_LIBRTE_DPAA_MAX_CRYPTODEV SEC devices are + * constantly created only if "sec" property is found in the device + * tree. Logically there is no limit for number of devices (QI + * interfaces) that can be created. + */ + + if (dpaa_sec_available()) { + DPAA_BUS_LOG(INFO, "DPAA SEC devices are not available"); + return 0; + } + + /* Creating SEC Devices */ + for (i = 0; i < RTE_LIBRTE_DPAA_MAX_CRYPTODEV; i++) { + dev = calloc(1, sizeof(struct rte_dpaa_device)); + if (!dev) { + DPAA_BUS_LOG(ERR, "Failed to allocate SEC devices"); + ret = -1; + goto cleanup; + } + + dev->device_type = FSL_DPAA_CRYPTO; + dev->id.dev_id = rte_dpaa_bus.device_count + i; + + /* Even though RTE_CRYPTODEV_NAME_MAX_LEN is valid length of + * crypto PMD, using RTE_ETH_NAME_MAX_LEN as that is the size + * allocated for dev->name/ + */ + memset(dev->name, 0, RTE_ETH_NAME_MAX_LEN); + sprintf(dev->name, "dpaa-sec%d", i); + DPAA_BUS_LOG(DEBUG, "Device added: %s", dev->name); + + dpaa_add_to_device_list(dev); + } + + rte_dpaa_bus.device_count += i; + + return 0; + +cleanup: + dpaa_clean_device_list(); + return ret; +} + +static void +dpaa_clean_device_list(void) +{ + struct rte_dpaa_device *dev = NULL; + struct rte_dpaa_device *tdev = NULL; + + TAILQ_FOREACH_SAFE(dev, &rte_dpaa_bus.device_list, next, tdev) { + TAILQ_REMOVE(&rte_dpaa_bus.device_list, dev, next); + free(dev); + dev = NULL; + } +} + +/** XXX move this function into a separate file */ +static int +_dpaa_portal_init(void *arg) +{ + cpu_set_t cpuset; + pthread_t id; + uint32_t cpu = rte_lcore_id(); + int ret; + struct dpaa_portal *dpaa_io_portal; + + BUS_INIT_FUNC_TRACE(); + + if ((uint64_t)arg == 1 || cpu == LCORE_ID_ANY) + cpu = rte_get_master_lcore(); + /* if the core id is not supported */ + else + if (cpu >= RTE_MAX_LCORE) + return -1; + + /* Set CPU affinity for this thread */ + CPU_ZERO(&cpuset); + CPU_SET(cpu, &cpuset); + id = pthread_self(); + ret = pthread_setaffinity_np(id, sizeof(cpu_set_t), &cpuset); + if (ret) { + DPAA_BUS_LOG(ERR, "pthread_setaffinity_np failed on " + "core :%d with ret: %d", cpu, ret); + return ret; + } + + /* Initialise bman thread portals */ + ret = bman_thread_init(); + if (ret) { + DPAA_BUS_LOG(ERR, "bman_thread_init failed on " + "core %d with ret: %d", cpu, ret); + return ret; + } + + DPAA_BUS_LOG(DEBUG, "BMAN thread initialized"); + + /* Initialise qman thread portals */ + ret = qman_thread_init(); + if (ret) { + DPAA_BUS_LOG(ERR, "bman_thread_init failed on " + "core %d with ret: %d", cpu, ret); + bman_thread_finish(); + return ret; + } + + DPAA_BUS_LOG(DEBUG, "QMAN thread initialized"); + + dpaa_io_portal = rte_malloc(NULL, sizeof(struct dpaa_portal), + RTE_CACHE_LINE_SIZE); + if (!dpaa_io_portal) { + DPAA_BUS_LOG(ERR, "Unable to allocate memory"); + bman_thread_finish(); + qman_thread_finish(); + return -ENOMEM; + } + + dpaa_io_portal->qman_idx = qman_get_portal_index(); + dpaa_io_portal->bman_idx = bman_get_portal_index(); + dpaa_io_portal->tid = syscall(SYS_gettid); + + ret = pthread_setspecific(dpaa_portal_key, (void *)dpaa_io_portal); + if (ret) { + DPAA_BUS_LOG(ERR, "pthread_setspecific failed on " + "core %d with ret: %d", cpu, ret); + dpaa_portal_finish(NULL); + + return ret; + } + + RTE_PER_LCORE(_dpaa_io) = true; + + DPAA_BUS_LOG(DEBUG, "QMAN thread initialized"); + + return 0; +} + +/* + * rte_dpaa_portal_init - Wrapper over _dpaa_portal_init with thread level check + * XXX Complete this + */ +int +rte_dpaa_portal_init(void *arg) +{ + if (unlikely(!RTE_PER_LCORE(_dpaa_io))) + return _dpaa_portal_init(arg); + + return 0; +} + +void +dpaa_portal_finish(void *arg) +{ + struct dpaa_portal *dpaa_io_portal = (struct dpaa_portal *)arg; + + if (!dpaa_io_portal) { + DPAA_BUS_LOG(DEBUG, "Portal already cleaned"); + return; + } + + bman_thread_finish(); + qman_thread_finish(); + + pthread_setspecific(dpaa_portal_key, NULL); + + rte_free(dpaa_io_portal); + dpaa_io_portal = NULL; + + RTE_PER_LCORE(_dpaa_io) = false; +} + +#define DPAA_DEV_PATH1 "/sys/devices/platform/soc/soc:fsl,dpaa" +#define DPAA_DEV_PATH2 "/sys/devices/platform/fsl,dpaa" + +static int +rte_dpaa_bus_scan(void) +{ + int ret; + + BUS_INIT_FUNC_TRACE(); + + if ((access(DPAA_DEV_PATH1, F_OK) != 0) && + (access(DPAA_DEV_PATH2, F_OK) != 0)) { + RTE_LOG(DEBUG, EAL, "DPAA Bus not present. Skipping.\n"); + return 0; + } + + /* Load the device-tree driver */ + ret = of_init(); + if (ret) { + DPAA_BUS_LOG(ERR, "of_init failed with ret: %d", ret); + return -1; + } + + /* Get the interface configurations from device-tree */ + dpaa_netcfg = netcfg_acquire(); + if (!dpaa_netcfg) { + DPAA_BUS_LOG(ERR, "netcfg_acquire failed"); + return -EINVAL; + } + + RTE_LOG(NOTICE, EAL, "DPAA Bus Detected\n"); + + if (!dpaa_netcfg->num_ethports) { + DPAA_BUS_LOG(INFO, "no network interfaces available"); + /* This is not an error */ + return 0; + } + + DPAA_BUS_LOG(DEBUG, "Bus: Address of netcfg=%p, Ethports=%d", + dpaa_netcfg, dpaa_netcfg->num_ethports); + +#ifdef RTE_LIBRTE_DPAA_DEBUG_DRIVER + dump_netcfg(dpaa_netcfg); +#endif + + DPAA_BUS_LOG(DEBUG, "Number of devices = %d\n", + dpaa_netcfg->num_ethports); + ret = dpaa_create_device_list(); + if (ret) { + DPAA_BUS_LOG(ERR, "Unable to create device list. (%d)", ret); + return ret; + } + + /* create the key, supplying a function that'll be invoked + * when a portal affined thread will be deleted. + */ + ret = pthread_key_create(&dpaa_portal_key, dpaa_portal_finish); + if (ret) { + DPAA_BUS_LOG(DEBUG, "Unable to create pthread key. (%d)", ret); + dpaa_clean_device_list(); + return ret; + } + + DPAA_BUS_LOG(DEBUG, "dpaa_portal_key=%u, ret=%d\n", + (unsigned int)dpaa_portal_key, ret); + + return 0; +} + +/* register a dpaa bus based dpaa driver */ +void +rte_dpaa_driver_register(struct rte_dpaa_driver *driver) +{ + RTE_VERIFY(driver); + + BUS_INIT_FUNC_TRACE(); + + TAILQ_INSERT_TAIL(&rte_dpaa_bus.driver_list, driver, next); + /* Update Bus references */ + driver->dpaa_bus = &rte_dpaa_bus; +} + +/* un-register a dpaa bus based dpaa driver */ +void +rte_dpaa_driver_unregister(struct rte_dpaa_driver *driver) +{ + struct rte_dpaa_bus *dpaa_bus; + + BUS_INIT_FUNC_TRACE(); + + dpaa_bus = driver->dpaa_bus; + + TAILQ_REMOVE(&dpaa_bus->driver_list, driver, next); + /* Update Bus references */ + driver->dpaa_bus = NULL; +} + +static int +rte_dpaa_device_match(struct rte_dpaa_driver *drv, + struct rte_dpaa_device *dev) +{ + int ret = -1; + + BUS_INIT_FUNC_TRACE(); + + if (!drv || !dev) { + DPAA_BUS_DEBUG("Invalid drv or dev received."); + return ret; + } + + if (drv->drv_type == dev->device_type) { + DPAA_BUS_INFO("Device: %s matches for driver: %s", + dev->name, drv->driver.name); + ret = 0; /* Found a match */ + } + + return ret; +} + +static int +rte_dpaa_bus_probe(void) +{ + int ret = -1; + struct rte_dpaa_device *dev; + struct rte_dpaa_driver *drv; + + BUS_INIT_FUNC_TRACE(); + + /* For each registered driver, and device, call the driver->probe */ + TAILQ_FOREACH(dev, &rte_dpaa_bus.device_list, next) { + TAILQ_FOREACH(drv, &rte_dpaa_bus.driver_list, next) { + ret = rte_dpaa_device_match(drv, dev); + if (ret) + continue; + + if (!drv->probe) + continue; + + ret = drv->probe(drv, dev); + if (ret) + DPAA_BUS_ERR("Unable to probe.\n"); + break; + } + } + return 0; +} + +static struct rte_device * +rte_dpaa_find_device(const struct rte_device *start, rte_dev_cmp_t cmp, + const void *data) +{ + struct rte_dpaa_device *dev; + + TAILQ_FOREACH(dev, &rte_dpaa_bus.device_list, next) { + if (start && &dev->device == start) { + start = NULL; /* starting point found */ + continue; + } + + if (cmp(&dev->device, data) == 0) + return &dev->device; + } + + return NULL; +} + +/* + * Get iommu class of DPAA2 devices on the bus. + */ +static enum rte_iova_mode +rte_dpaa_get_iommu_class(void) +{ + return RTE_IOVA_PA; +} + +struct rte_dpaa_bus rte_dpaa_bus = { + .bus = { + .scan = rte_dpaa_bus_scan, + .probe = rte_dpaa_bus_probe, + .find_device = rte_dpaa_find_device, + .get_iommu_class = rte_dpaa_get_iommu_class, + }, + .device_list = TAILQ_HEAD_INITIALIZER(rte_dpaa_bus.device_list), + .driver_list = TAILQ_HEAD_INITIALIZER(rte_dpaa_bus.driver_list), + .device_count = 0, +}; + +RTE_REGISTER_BUS(FSL_DPAA_BUS_NAME, rte_dpaa_bus.bus); + +RTE_INIT(dpaa_init_log); +static void +dpaa_init_log(void) +{ + dpaa_logtype_bus = rte_log_register("bus.dpaa"); + if (dpaa_logtype_bus >= 0) + rte_log_set_level(dpaa_logtype_bus, RTE_LOG_NOTICE); + + dpaa_logtype_mempool = rte_log_register("mempool.dpaa"); + if (dpaa_logtype_mempool >= 0) + rte_log_set_level(dpaa_logtype_mempool, RTE_LOG_NOTICE); + + dpaa_logtype_pmd = rte_log_register("pmd.dpaa"); + if (dpaa_logtype_pmd >= 0) + rte_log_set_level(dpaa_logtype_pmd, RTE_LOG_NOTICE); +} |