X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Ffailsafe%2Ffailsafe.c;h=fa279cbd6f359e13fcc1c24ff6e75a41df7872b0;hb=2b9f98d8a596fa552313fd4a79d182d062a26305;hp=806c305da7e5fca85032e45a61806ca47c2e61a8;hpb=a46f8d584eb88feb2a05ca3459d4a00b7d7654aa;p=dpdk.git diff --git a/drivers/net/failsafe/failsafe.c b/drivers/net/failsafe/failsafe.c index 806c305da7..fa279cbd6f 100644 --- a/drivers/net/failsafe/failsafe.c +++ b/drivers/net/failsafe/failsafe.c @@ -1,43 +1,15 @@ -/*- - * BSD LICENSE - * - * Copyright 2017 6WIND S.A. - * Copyright 2017 Mellanox. - * - * 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 6WIND S.A. 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. +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright 2017 6WIND S.A. + * Copyright 2017 Mellanox Technologies, Ltd */ #include #include -#include +#include #include #include #include -#include +#include #include "failsafe_private.h" @@ -46,7 +18,7 @@ static const struct rte_eth_link eth_link = { .link_speed = ETH_SPEED_NUM_10G, .link_duplex = ETH_LINK_FULL_DUPLEX, .link_status = ETH_LINK_UP, - .link_autoneg = ETH_LINK_SPEED_AUTONEG, + .link_autoneg = ETH_LINK_AUTONEG, }; static int @@ -55,6 +27,7 @@ fs_sub_device_alloc(struct rte_eth_dev *dev, { uint8_t nb_subs; int ret; + int i; ret = failsafe_args_count_subdevice(dev, params); if (ret) @@ -72,6 +45,10 @@ fs_sub_device_alloc(struct rte_eth_dev *dev, ERROR("Could not allocate sub_devices"); return -ENOMEM; } + /* Initiate static sub devices linked list. */ + for (i = 1; i < nb_subs; i++) + PRIV(dev)->subs[i - 1].next = PRIV(dev)->subs + i; + PRIV(dev)->subs[i - 1].next = PRIV(dev)->subs; return 0; } @@ -81,6 +58,100 @@ fs_sub_device_free(struct rte_eth_dev *dev) rte_free(PRIV(dev)->subs); } +static void fs_hotplug_alarm(void *arg); + +int +failsafe_hotplug_alarm_install(struct rte_eth_dev *dev) +{ + int ret; + + if (dev == NULL) + return -EINVAL; + if (PRIV(dev)->pending_alarm) + return 0; + ret = rte_eal_alarm_set(hotplug_poll * 1000, + fs_hotplug_alarm, + dev); + if (ret) { + ERROR("Could not set up plug-in event detection"); + return ret; + } + PRIV(dev)->pending_alarm = 1; + return 0; +} + +int +failsafe_hotplug_alarm_cancel(struct rte_eth_dev *dev) +{ + int ret = 0; + + rte_errno = 0; + rte_eal_alarm_cancel(fs_hotplug_alarm, dev); + if (rte_errno) { + ERROR("rte_eal_alarm_cancel failed (errno: %s)", + strerror(rte_errno)); + ret = -rte_errno; + } else { + PRIV(dev)->pending_alarm = 0; + } + return ret; +} + +static void +fs_hotplug_alarm(void *arg) +{ + struct rte_eth_dev *dev = arg; + struct sub_device *sdev; + int ret; + uint8_t i; + + if (!PRIV(dev)->pending_alarm) + return; + PRIV(dev)->pending_alarm = 0; + FOREACH_SUBDEV(sdev, i, dev) + if (sdev->state != PRIV(dev)->state) + break; + /* if we have non-probed device */ + if (i != PRIV(dev)->subs_tail) { + if (fs_lock(dev, 1) != 0) + goto reinstall; + ret = failsafe_eth_dev_state_sync(dev); + fs_unlock(dev, 1); + if (ret) + ERROR("Unable to synchronize sub_device state"); + } + failsafe_dev_remove(dev); +reinstall: + ret = failsafe_hotplug_alarm_install(dev); + if (ret) + ERROR("Unable to set up next alarm"); +} + +static int +fs_mutex_init(struct fs_priv *priv) +{ + int ret; + pthread_mutexattr_t attr; + + ret = pthread_mutexattr_init(&attr); + if (ret) { + ERROR("Cannot initiate mutex attributes - %s", strerror(ret)); + return ret; + } + /* Allow mutex relocks for the thread holding the mutex. */ + ret = pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE); + if (ret) { + ERROR("Cannot set mutex type - %s", strerror(ret)); + return ret; + } + ret = pthread_mutex_init(&priv->hotplug_mutex, &attr); + if (ret) { + ERROR("Cannot initiate mutex - %s", strerror(ret)); + return ret; + } + return 0; +} + static int fs_eth_dev_create(struct rte_vdev_device *vdev) { @@ -113,6 +184,7 @@ fs_eth_dev_create(struct rte_vdev_device *vdev) dev->data->mac_addrs = &PRIV(dev)->mac_addrs[0]; dev->data->dev_link = eth_link; PRIV(dev)->nb_mac_addr = 1; + TAILQ_INIT(&PRIV(dev)->flow_list); dev->rx_pkt_burst = (eth_rx_burst_t)&failsafe_rx_burst; dev->tx_pkt_burst = (eth_tx_burst_t)&failsafe_tx_burst; ret = fs_sub_device_alloc(dev, params); @@ -123,9 +195,24 @@ fs_eth_dev_create(struct rte_vdev_device *vdev) ret = failsafe_args_parse(dev, params); if (ret) goto free_subs; + ret = rte_eth_dev_owner_new(&priv->my_owner.id); + if (ret) { + ERROR("Failed to get unique owner identifier"); + goto free_args; + } + snprintf(priv->my_owner.name, sizeof(priv->my_owner.name), + FAILSAFE_OWNER_NAME); ret = failsafe_eal_init(dev); if (ret) goto free_args; + ret = fs_mutex_init(priv); + if (ret) + goto free_args; + ret = failsafe_hotplug_alarm_install(dev); + if (ret) { + ERROR("Could not set up plug-in event detection"); + goto free_args; + } mac = &dev->data->mac_addrs[0]; if (mac_from_arg) { /* @@ -165,6 +252,11 @@ fs_eth_dev_create(struct rte_vdev_device *vdev) mac->addr_bytes[0], mac->addr_bytes[1], mac->addr_bytes[2], mac->addr_bytes[3], mac->addr_bytes[4], mac->addr_bytes[5]); + dev->data->dev_flags |= RTE_ETH_DEV_INTR_LSC; + PRIV(dev)->intr_handle = (struct rte_intr_handle){ + .fd = -1, + .type = RTE_INTR_HANDLE_EXT, + }; return 0; free_args: failsafe_args_free(dev); @@ -190,6 +282,9 @@ fs_rte_eth_free(const char *name) ERROR("Error while uninitializing sub-EAL"); failsafe_args_free(dev); fs_sub_device_free(dev); + ret = pthread_mutex_destroy(&PRIV(dev)->hotplug_mutex); + if (ret) + ERROR("Error while destroying hotplug mutex"); rte_free(PRIV(dev)); rte_eth_dev_release_port(dev); return ret;