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path: root/mm/memory-failure.c
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2016-02-25mm: soft-offline: check return value in second __get_any_page() callNaoya Horiguchi
2015-09-13mm/hwpoison: fix page refcount of unknown non LRU pageWanpeng Li
2015-05-17mm: soft-offline: fix num_poisoned_pages counting on concurrent eventsNaoya Horiguchi
2015-05-17mm/memory-failure: call shake_page() when error hits thp tail pageNaoya Horiguchi
2015-04-29mm: hwpoison: drop lru_add_drain_all() in __soft_offline_page()Naoya Horiguchi
2014-11-21mm, migration: add destination page freeing callbackDavid Rientjes
2014-06-30mm/memory-failure.c: support use of a dedicated thread to handle SIGBUS(BUS_M...Naoya Horiguchi
2014-06-30mm/memory-failure.c: don't let collect_procs() skip over processes for MF_ACT...Tony Luck
2014-06-30mm/memory-failure.c-failure: send right signal code to correct threadTony Luck
2014-06-11mm/memory-failure.c: fix memory leak by race between poison and unpoisonNaoya Horiguchi
2014-06-07hwpoison, hugetlb: lock_page/unlock_page does not match for handling a free h...Chen Yucong
2014-03-04mm: close PageTail raceDavid Rientjes
2014-02-10mm/memory-failure.c: move refcount only in !MF_COUNT_INCREASEDNaoya Horiguchi
2014-01-23mm/memory-failure.c: shift page lock from head page to tail page after thp splitNaoya Horiguchi
2014-01-21mm/migrate: remove putback_lru_pages, fix comment on putback_movable_pagesJoonsoo Kim
2014-01-21mm, memory-failure: fix typo in me_pagecache_dirty()Zhi Yong Wu
2014-01-02mm/memory-failure.c: transfer page count from head page to tail page after sp...Naoya Horiguchi
2013-12-18mm/memory-failure.c: recheck PageHuge() after hugetlb page migrate successfullyJianguo Wu
2013-11-15kfifo API type safetyStefani Seibold
2013-11-13mm/memory-failure.c: move set_migratetype_isolate() outside get_any_page()Naoya Horiguchi
2013-09-30mm/hwpoison: fix false report on 2nd attempt at page recoveryWanpeng Li
2013-09-30mm/hwpoison: fix test for a transparent huge pageWanpeng Li
2013-09-12Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vir...Linus Torvalds
2013-09-11mm/memory-failure.c: fix bug triggered by unpoisoning empty zero pageWanpeng Li
2013-09-11mm/hwpoison: drop forward reference declarations __soft_offline_page()Wanpeng Li
2013-09-11mm/hwpoison: don't set migration type twice to avoid holding heavily contend ...Wanpeng Li
2013-09-11mm/hwpoison: replace atomic_long_sub() with atomic_long_dec()Wanpeng Li
2013-09-11mm/hwpoison: fix race against poison thpWanpeng Li
2013-09-11mm/hwpoison: don't need to hold compound lock for hugetlbfs pageWanpeng Li
2013-09-11mm/hwpoison: fix loss of PG_dirty for errors on mlocked pagesWanpeng Li
2013-09-11hwpoison: always unset MIGRATE_ISOLATE before returning from soft_offline_page()Naoya Horiguchi
2013-09-11mm: soft-offline: use migrate_pages() instead of migrate_huge_page()Naoya Horiguchi
2013-09-10shrinker: add node awarenessDave Chinner
2013-09-06Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jik...Linus Torvalds
2013-08-27treewide: Fix printks with 0x%#Joe Perches
2013-08-12Merge branch 'x86/mce' into x86/rasIngo Molnar
2013-07-10mce: acpi/apei: Soft-offline a page on firmware GHES notificationNaveen N. Rao
2013-07-03mm/memory-failure.c: fix memory leak in successful soft offliningNaoya Horiguchi
2013-04-29HWPOISON: check dirty flag to match against clean pageNaoya Horiguchi
2013-02-23HWPOISON: change order of error_states[]'s elementsNaoya Horiguchi
2013-02-23HWPOISON: fix misjudgement of page_action() for errors on mlocked pagesNaoya Horiguchi
2013-02-23mm: remove offlining arg to migrate_pagesHugh Dickins
2013-02-23mm/memory-failure.c: fix wrong num_poisoned_pages in handling memory error on...Naoya Horiguchi
2013-02-23mm/memory-failure.c: clean up soft_offline_page()Naoya Horiguchi
2013-02-23memory-failure: use num_poisoned_pages instead of mce_bad_pagesXishi Qiu
2013-02-23memory-failure: do code refactor of soft_offline_page()Xishi Qiu
2013-02-23memory-failure: fix an error of mce_bad_pages statisticsXishi Qiu
2012-12-16Merge tag 'balancenuma-v11' of git://git.kernel.org/pub/scm/linux/kernel/git/...Linus Torvalds
2012-12-11mm: hwpoison: fix action_result() to print out dirty/cleanNaoya Horiguchi
2012-12-11memory-hotplug: skip HWPoisoned page when offlining pagesWen Congyang
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-04 17:28:11 +0000
if (err) en_err(priv, "Failed configuring VLAN filter\n"); } mutex_unlock(&mdev->state_lock); return 0; } u64 mlx4_en_mac_to_u64(u8 *addr) { u64 mac = 0; int i; for (i = 0; i < ETH_ALEN; i++) { mac <<= 8; mac |= addr[i]; } return mac; } static int mlx4_en_set_mac(struct net_device *dev, void *addr) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; struct sockaddr *saddr = addr; if (!is_valid_ether_addr(saddr->sa_data)) return -EADDRNOTAVAIL; memcpy(dev->dev_addr, saddr->sa_data, ETH_ALEN); priv->mac = mlx4_en_mac_to_u64(dev->dev_addr); queue_work(mdev->workqueue, &priv->mac_task); return 0; } static void mlx4_en_do_set_mac(struct work_struct *work) { struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, mac_task); struct mlx4_en_dev *mdev = priv->mdev; int err = 0; mutex_lock(&mdev->state_lock); if (priv->port_up) { /* Remove old MAC and insert the new one */ err = mlx4_replace_mac(mdev->dev, priv->port, priv->base_qpn, priv->mac); if (err) en_err(priv, "Failed changing HW MAC address\n"); } else en_dbg(HW, priv, "Port is down while " "registering mac, exiting...\n"); mutex_unlock(&mdev->state_lock); } static void mlx4_en_clear_list(struct net_device *dev) { struct mlx4_en_priv *priv = netdev_priv(dev); kfree(priv->mc_addrs); priv->mc_addrs = NULL; priv->mc_addrs_cnt = 0; } static void mlx4_en_cache_mclist(struct net_device *dev) { struct mlx4_en_priv *priv = netdev_priv(dev); struct netdev_hw_addr *ha; char *mc_addrs; int mc_addrs_cnt = netdev_mc_count(dev); int i; mc_addrs = kmalloc(mc_addrs_cnt * ETH_ALEN, GFP_ATOMIC); if (!mc_addrs) { en_err(priv, "failed to allocate multicast list\n"); return; } i = 0; netdev_for_each_mc_addr(ha, dev) memcpy(mc_addrs + i++ * ETH_ALEN, ha->addr, ETH_ALEN); mlx4_en_clear_list(dev); priv->mc_addrs = mc_addrs; priv->mc_addrs_cnt = mc_addrs_cnt; } static void mlx4_en_set_multicast(struct net_device *dev) { struct mlx4_en_priv *priv = netdev_priv(dev); if (!priv->port_up) return; queue_work(priv->mdev->workqueue, &priv->mcast_task); } static void mlx4_en_do_set_multicast(struct work_struct *work) { struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, mcast_task); struct mlx4_en_dev *mdev = priv->mdev; struct net_device *dev = priv->dev; u64 mcast_addr = 0; u8 mc_list[16] = {0}; int err; mutex_lock(&mdev->state_lock); if (!mdev->device_up) { en_dbg(HW, priv, "Card is not up, " "ignoring multicast change.\n"); goto out; } if (!priv->port_up) { en_dbg(HW, priv, "Port is down, " "ignoring multicast change.\n"); goto out; } if (!netif_carrier_ok(dev)) { if (!mlx4_en_QUERY_PORT(mdev, priv->port)) { if (priv->port_state.link_state) { priv->last_link_state = MLX4_DEV_EVENT_PORT_UP; netif_carrier_on(dev); en_dbg(LINK, priv, "Link Up\n"); } } } /* * Promsicuous mode: disable all filters */ if (dev->flags & IFF_PROMISC) { if (!(priv->flags & MLX4_EN_FLAG_PROMISC)) { if (netif_msg_rx_status(priv)) en_warn(priv, "Entering promiscuous mode\n"); priv->flags |= MLX4_EN_FLAG_PROMISC; /* Enable promiscouos mode */ if (!(mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER)) err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, priv->base_qpn, 1); else err = mlx4_unicast_promisc_add(mdev->dev, priv->base_qpn, priv->port); if (err) en_err(priv, "Failed enabling " "promiscuous mode\n"); /* Disable port multicast filter (unconditionally) */ err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 0, MLX4_MCAST_DISABLE); if (err) en_err(priv, "Failed disabling " "multicast filter\n"); /* Add the default qp number as multicast promisc */ if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) { err = mlx4_multicast_promisc_add(mdev->dev, priv->base_qpn, priv->port); if (err) en_err(priv, "Failed entering multicast promisc mode\n"); priv->flags |= MLX4_EN_FLAG_MC_PROMISC; } /* Disable port VLAN filter */ err = mlx4_SET_VLAN_FLTR(mdev->dev, priv); if (err) en_err(priv, "Failed disabling VLAN filter\n"); } goto out; } /* * Not in promiscuous mode */ if (priv->flags & MLX4_EN_FLAG_PROMISC) { if (netif_msg_rx_status(priv)) en_warn(priv, "Leaving promiscuous mode\n"); priv->flags &= ~MLX4_EN_FLAG_PROMISC; /* Disable promiscouos mode */ if (!(mdev->dev->caps.flags & MLX4_DEV_CAP_FLAG_VEP_UC_STEER)) err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, priv->base_qpn, 0); else err = mlx4_unicast_promisc_remove(mdev->dev, priv->base_qpn, priv->port); if (err) en_err(priv, "Failed disabling promiscuous mode\n"); /* Disable Multicast promisc */ if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) { err = mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn, priv->port); if (err) en_err(priv, "Failed disabling multicast promiscuous mode\n"); priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC; } /* Enable port VLAN filter */ err = mlx4_SET_VLAN_FLTR(mdev->dev, priv); if (err) en_err(priv, "Failed enabling VLAN filter\n"); } /* Enable/disable the multicast filter according to IFF_ALLMULTI */ if (dev->flags & IFF_ALLMULTI) { err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 0, MLX4_MCAST_DISABLE); if (err) en_err(priv, "Failed disabling multicast filter\n"); /* Add the default qp number as multicast promisc */ if (!(priv->flags & MLX4_EN_FLAG_MC_PROMISC)) { err = mlx4_multicast_promisc_add(mdev->dev, priv->base_qpn, priv->port); if (err) en_err(priv, "Failed entering multicast promisc mode\n"); priv->flags |= MLX4_EN_FLAG_MC_PROMISC; } } else { int i; /* Disable Multicast promisc */ if (priv->flags & MLX4_EN_FLAG_MC_PROMISC) { err = mlx4_multicast_promisc_remove(mdev->dev, priv->base_qpn, priv->port); if (err) en_err(priv, "Failed disabling multicast promiscuous mode\n"); priv->flags &= ~MLX4_EN_FLAG_MC_PROMISC; } err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 0, MLX4_MCAST_DISABLE); if (err) en_err(priv, "Failed disabling multicast filter\n"); /* Detach our qp from all the multicast addresses */ for (i = 0; i < priv->mc_addrs_cnt; i++) { memcpy(&mc_list[10], priv->mc_addrs + i * ETH_ALEN, ETH_ALEN); mc_list[5] = priv->port; mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, mc_list, MLX4_PROT_ETH); } /* Flush mcast filter and init it with broadcast address */ mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, ETH_BCAST, 1, MLX4_MCAST_CONFIG); /* Update multicast list - we cache all addresses so they won't * change while HW is updated holding the command semaphor */ netif_tx_lock_bh(dev); mlx4_en_cache_mclist(dev); netif_tx_unlock_bh(dev); for (i = 0; i < priv->mc_addrs_cnt; i++) { mcast_addr = mlx4_en_mac_to_u64(priv->mc_addrs + i * ETH_ALEN); memcpy(&mc_list[10], priv->mc_addrs + i * ETH_ALEN, ETH_ALEN); mc_list[5] = priv->port; mlx4_multicast_attach(mdev->dev, &priv->rss_map.indir_qp, mc_list, 0, MLX4_PROT_ETH); mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, mcast_addr, 0, MLX4_MCAST_CONFIG); } err = mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 0, MLX4_MCAST_ENABLE); if (err) en_err(priv, "Failed enabling multicast filter\n"); } out: mutex_unlock(&mdev->state_lock); } #ifdef CONFIG_NET_POLL_CONTROLLER static void mlx4_en_netpoll(struct net_device *dev) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_cq *cq; unsigned long flags; int i; for (i = 0; i < priv->rx_ring_num; i++) { cq = &priv->rx_cq[i]; spin_lock_irqsave(&cq->lock, flags); napi_synchronize(&cq->napi); mlx4_en_process_rx_cq(dev, cq, 0); spin_unlock_irqrestore(&cq->lock, flags); } } #endif static void mlx4_en_tx_timeout(struct net_device *dev) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; if (netif_msg_timer(priv)) en_warn(priv, "Tx timeout called on port:%d\n", priv->port); priv->port_stats.tx_timeout++; en_dbg(DRV, priv, "Scheduling watchdog\n"); queue_work(mdev->workqueue, &priv->watchdog_task); } static struct net_device_stats *mlx4_en_get_stats(struct net_device *dev) { struct mlx4_en_priv *priv = netdev_priv(dev); spin_lock_bh(&priv->stats_lock); memcpy(&priv->ret_stats, &priv->stats, sizeof(priv->stats)); spin_unlock_bh(&priv->stats_lock); return &priv->ret_stats; } static void mlx4_en_set_default_moderation(struct mlx4_en_priv *priv) { struct mlx4_en_cq *cq; int i; /* If we haven't received a specific coalescing setting * (module param), we set the moderation parameters as follows: * - moder_cnt is set to the number of mtu sized packets to * satisfy our coelsing target. * - moder_time is set to a fixed value. */ priv->rx_frames = MLX4_EN_RX_COAL_TARGET; priv->rx_usecs = MLX4_EN_RX_COAL_TIME; priv->tx_frames = MLX4_EN_TX_COAL_PKTS; priv->tx_usecs = MLX4_EN_TX_COAL_TIME; en_dbg(INTR, priv, "Default coalesing params for mtu:%d - " "rx_frames:%d rx_usecs:%d\n", priv->dev->mtu, priv->rx_frames, priv->rx_usecs); /* Setup cq moderation params */ for (i = 0; i < priv->rx_ring_num; i++) { cq = &priv->rx_cq[i]; cq->moder_cnt = priv->rx_frames; cq->moder_time = priv->rx_usecs; priv->last_moder_time[i] = MLX4_EN_AUTO_CONF; priv->last_moder_packets[i] = 0; priv->last_moder_bytes[i] = 0; } for (i = 0; i < priv->tx_ring_num; i++) { cq = &priv->tx_cq[i]; cq->moder_cnt = priv->tx_frames; cq->moder_time = priv->tx_usecs; } /* Reset auto-moderation params */ priv->pkt_rate_low = MLX4_EN_RX_RATE_LOW; priv->rx_usecs_low = MLX4_EN_RX_COAL_TIME_LOW; priv->pkt_rate_high = MLX4_EN_RX_RATE_HIGH; priv->rx_usecs_high = MLX4_EN_RX_COAL_TIME_HIGH; priv->sample_interval = MLX4_EN_SAMPLE_INTERVAL; priv->adaptive_rx_coal = 1; priv->last_moder_jiffies = 0; priv->last_moder_tx_packets = 0; } static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv) { unsigned long period = (unsigned long) (jiffies - priv->last_moder_jiffies); struct mlx4_en_cq *cq; unsigned long packets; unsigned long rate; unsigned long avg_pkt_size; unsigned long rx_packets; unsigned long rx_bytes; unsigned long rx_pkt_diff; int moder_time; int ring, err; if (!priv->adaptive_rx_coal || period < priv->sample_interval * HZ) return; for (ring = 0; ring < priv->rx_ring_num; ring++) { spin_lock_bh(&priv->stats_lock); rx_packets = priv->rx_ring[ring].packets; rx_bytes = priv->rx_ring[ring].bytes; spin_unlock_bh(&priv->stats_lock); rx_pkt_diff = ((unsigned long) (rx_packets - priv->last_moder_packets[ring])); packets = rx_pkt_diff; rate = packets * HZ / period; avg_pkt_size = packets ? ((unsigned long) (rx_bytes - priv->last_moder_bytes[ring])) / packets : 0; /* Apply auto-moderation only when packet rate * exceeds a rate that it matters */ if (rate > (MLX4_EN_RX_RATE_THRESH / priv->rx_ring_num) && avg_pkt_size > MLX4_EN_AVG_PKT_SMALL) { if (rate < priv->pkt_rate_low) moder_time = priv->rx_usecs_low; else if (rate > priv->pkt_rate_high) moder_time = priv->rx_usecs_high; else moder_time = (rate - priv->pkt_rate_low) * (priv->rx_usecs_high - priv->rx_usecs_low) / (priv->pkt_rate_high - priv->pkt_rate_low) + priv->rx_usecs_low; } else { moder_time = priv->rx_usecs_low; } if (moder_time != priv->last_moder_time[ring]) { priv->last_moder_time[ring] = moder_time; cq = &priv->rx_cq[ring]; cq->moder_time = moder_time; err = mlx4_en_set_cq_moder(priv, cq); if (err) en_err(priv, "Failed modifying moderation " "for cq:%d\n", ring); } priv->last_moder_packets[ring] = rx_packets; priv->last_moder_bytes[ring] = rx_bytes; } priv->last_moder_jiffies = jiffies; } static void mlx4_en_do_get_stats(struct work_struct *work) { struct delayed_work *delay = to_delayed_work(work); struct mlx4_en_priv *priv = container_of(delay, struct mlx4_en_priv, stats_task); struct mlx4_en_dev *mdev = priv->mdev; int err; err = mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 0); if (err) en_dbg(HW, priv, "Could not update stats\n"); mutex_lock(&mdev->state_lock); if (mdev->device_up) { if (priv->port_up) mlx4_en_auto_moderation(priv); queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY); } if (mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port]) { queue_work(mdev->workqueue, &priv->mac_task); mdev->mac_removed[MLX4_MAX_PORTS + 1 - priv->port] = 0; } mutex_unlock(&mdev->state_lock); } static void mlx4_en_linkstate(struct work_struct *work) { struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, linkstate_task); struct mlx4_en_dev *mdev = priv->mdev; int linkstate = priv->link_state; mutex_lock(&mdev->state_lock); /* If observable port state changed set carrier state and * report to system log */ if (priv->last_link_state != linkstate) { if (linkstate == MLX4_DEV_EVENT_PORT_DOWN) { en_info(priv, "Link Down\n"); netif_carrier_off(priv->dev); } else { en_info(priv, "Link Up\n"); netif_carrier_on(priv->dev); } } priv->last_link_state = linkstate; mutex_unlock(&mdev->state_lock); } int mlx4_en_start_port(struct net_device *dev) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; struct mlx4_en_cq *cq; struct mlx4_en_tx_ring *tx_ring; int rx_index = 0; int tx_index = 0; int err = 0; int i; int j; u8 mc_list[16] = {0}; if (priv->port_up) { en_dbg(DRV, priv, "start port called while port already up\n"); return 0; } /* Calculate Rx buf size */ dev->mtu = min(dev->mtu, priv->max_mtu); mlx4_en_calc_rx_buf(dev); en_dbg(DRV, priv, "Rx buf size:%d\n", priv->rx_skb_size); /* Configure rx cq's and rings */ err = mlx4_en_activate_rx_rings(priv); if (err) { en_err(priv, "Failed to activate RX rings\n"); return err; } for (i = 0; i < priv->rx_ring_num; i++) { cq = &priv->rx_cq[i]; err = mlx4_en_activate_cq(priv, cq, i); if (err) { en_err(priv, "Failed activating Rx CQ\n"); goto cq_err; } for (j = 0; j < cq->size; j++) cq->buf[j].owner_sr_opcode = MLX4_CQE_OWNER_MASK; err = mlx4_en_set_cq_moder(priv, cq); if (err) { en_err(priv, "Failed setting cq moderation parameters"); mlx4_en_deactivate_cq(priv, cq); goto cq_err; } mlx4_en_arm_cq(priv, cq); priv->rx_ring[i].cqn = cq->mcq.cqn; ++rx_index; } /* Set qp number */ en_dbg(DRV, priv, "Getting qp number for port %d\n", priv->port); err = mlx4_get_eth_qp(mdev->dev, priv->port, priv->mac, &priv->base_qpn); if (err) { en_err(priv, "Failed getting eth qp\n"); goto cq_err; } mdev->mac_removed[priv->port] = 0; err = mlx4_en_config_rss_steer(priv); if (err) { en_err(priv, "Failed configuring rss steering\n"); goto mac_err; } /* Configure tx cq's and rings */ for (i = 0; i < priv->tx_ring_num; i++) { /* Configure cq */ cq = &priv->tx_cq[i]; err = mlx4_en_activate_cq(priv, cq, i); if (err) { en_err(priv, "Failed allocating Tx CQ\n"); goto tx_err; } err = mlx4_en_set_cq_moder(priv, cq); if (err) { en_err(priv, "Failed setting cq moderation parameters"); mlx4_en_deactivate_cq(priv, cq); goto tx_err; } en_dbg(DRV, priv, "Resetting index of collapsed CQ:%d to -1\n", i); cq->buf->wqe_index = cpu_to_be16(0xffff); /* Configure ring */ tx_ring = &priv->tx_ring[i]; err = mlx4_en_activate_tx_ring(priv, tx_ring, cq->mcq.cqn, i / priv->mdev->profile.num_tx_rings_p_up); if (err) { en_err(priv, "Failed allocating Tx ring\n"); mlx4_en_deactivate_cq(priv, cq); goto tx_err; } tx_ring->tx_queue = netdev_get_tx_queue(dev, i); /* Arm CQ for TX completions */ mlx4_en_arm_cq(priv, cq); /* Set initial ownership of all Tx TXBBs to SW (1) */ for (j = 0; j < tx_ring->buf_size; j += STAMP_STRIDE) *((u32 *) (tx_ring->buf + j)) = 0xffffffff; ++tx_index; } /* Configure port */ err = mlx4_SET_PORT_general(mdev->dev, priv->port, priv->rx_skb_size + ETH_FCS_LEN, priv->prof->tx_pause, priv->prof->tx_ppp, priv->prof->rx_pause, priv->prof->rx_ppp); if (err) { en_err(priv, "Failed setting port general configurations " "for port %d, with error %d\n", priv->port, err); goto tx_err; } /* Set default qp number */ err = mlx4_SET_PORT_qpn_calc(mdev->dev, priv->port, priv->base_qpn, 0); if (err) { en_err(priv, "Failed setting default qp numbers\n"); goto tx_err; } /* Init port */ en_dbg(HW, priv, "Initializing port\n"); err = mlx4_INIT_PORT(mdev->dev, priv->port); if (err) { en_err(priv, "Failed Initializing port\n"); goto tx_err; } /* Attach rx QP to bradcast address */ memset(&mc_list[10], 0xff, ETH_ALEN); mc_list[5] = priv->port; if (mlx4_multicast_attach(mdev->dev, &priv->rss_map.indir_qp, mc_list, 0, MLX4_PROT_ETH)) mlx4_warn(mdev, "Failed Attaching Broadcast\n"); /* Must redo promiscuous mode setup. */ priv->flags &= ~(MLX4_EN_FLAG_PROMISC | MLX4_EN_FLAG_MC_PROMISC); /* Schedule multicast task to populate multicast list */ queue_work(mdev->workqueue, &priv->mcast_task); mlx4_set_stats_bitmap(mdev->dev, &priv->stats_bitmap); priv->port_up = true; netif_tx_start_all_queues(dev); return 0; tx_err: while (tx_index--) { mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[tx_index]); mlx4_en_deactivate_cq(priv, &priv->tx_cq[tx_index]); } mlx4_en_release_rss_steer(priv); mac_err: mlx4_put_eth_qp(mdev->dev, priv->port, priv->mac, priv->base_qpn); cq_err: while (rx_index--) mlx4_en_deactivate_cq(priv, &priv->rx_cq[rx_index]); for (i = 0; i < priv->rx_ring_num; i++) mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]); return err; /* need to close devices */ } void mlx4_en_stop_port(struct net_device *dev) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; int i; u8 mc_list[16] = {0}; if (!priv->port_up) { en_dbg(DRV, priv, "stop port called while port already down\n"); return; } /* Synchronize with tx routine */ netif_tx_lock_bh(dev); netif_tx_stop_all_queues(dev); netif_tx_unlock_bh(dev); /* Set port as not active */ priv->port_up = false; /* Detach All multicasts */ memset(&mc_list[10], 0xff, ETH_ALEN); mc_list[5] = priv->port; mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, mc_list, MLX4_PROT_ETH); for (i = 0; i < priv->mc_addrs_cnt; i++) { memcpy(&mc_list[10], priv->mc_addrs + i * ETH_ALEN, ETH_ALEN); mc_list[5] = priv->port; mlx4_multicast_detach(mdev->dev, &priv->rss_map.indir_qp, mc_list, MLX4_PROT_ETH); } mlx4_en_clear_list(dev); /* Flush multicast filter */ mlx4_SET_MCAST_FLTR(mdev->dev, priv->port, 0, 1, MLX4_MCAST_CONFIG); /* Free TX Rings */ for (i = 0; i < priv->tx_ring_num; i++) { mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[i]); mlx4_en_deactivate_cq(priv, &priv->tx_cq[i]); } msleep(10); for (i = 0; i < priv->tx_ring_num; i++) mlx4_en_free_tx_buf(dev, &priv->tx_ring[i]); /* Free RSS qps */ mlx4_en_release_rss_steer(priv); /* Unregister Mac address for the port */ mlx4_put_eth_qp(mdev->dev, priv->port, priv->mac, priv->base_qpn); mdev->mac_removed[priv->port] = 1; /* Free RX Rings */ for (i = 0; i < priv->rx_ring_num; i++) { mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]); while (test_bit(NAPI_STATE_SCHED, &priv->rx_cq[i].napi.state)) msleep(1); mlx4_en_deactivate_cq(priv, &priv->rx_cq[i]); } /* close port*/ mlx4_CLOSE_PORT(mdev->dev, priv->port); } static void mlx4_en_restart(struct work_struct *work) { struct mlx4_en_priv *priv = container_of(work, struct mlx4_en_priv, watchdog_task); struct mlx4_en_dev *mdev = priv->mdev; struct net_device *dev = priv->dev; int i; en_dbg(DRV, priv, "Watchdog task called for port %d\n", priv->port); mutex_lock(&mdev->state_lock); if (priv->port_up) { mlx4_en_stop_port(dev); for (i = 0; i < priv->tx_ring_num; i++) netdev_tx_reset_queue(priv->tx_ring[i].tx_queue); if (mlx4_en_start_port(dev)) en_err(priv, "Failed restarting port %d\n", priv->port); } mutex_unlock(&mdev->state_lock); } static void mlx4_en_clear_stats(struct net_device *dev) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; int i; if (mlx4_en_DUMP_ETH_STATS(mdev, priv->port, 1)) en_dbg(HW, priv, "Failed dumping statistics\n"); memset(&priv->stats, 0, sizeof(priv->stats)); memset(&priv->pstats, 0, sizeof(priv->pstats)); memset(&priv->pkstats, 0, sizeof(priv->pkstats)); memset(&priv->port_stats, 0, sizeof(priv->port_stats)); for (i = 0; i < priv->tx_ring_num; i++) { priv->tx_ring[i].bytes = 0; priv->tx_ring[i].packets = 0; priv->tx_ring[i].tx_csum = 0; } for (i = 0; i < priv->rx_ring_num; i++) { priv->rx_ring[i].bytes = 0; priv->rx_ring[i].packets = 0; priv->rx_ring[i].csum_ok = 0; priv->rx_ring[i].csum_none = 0; } } static int mlx4_en_open(struct net_device *dev) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; int err = 0; mutex_lock(&mdev->state_lock); if (!mdev->device_up) { en_err(priv, "Cannot open - device down/disabled\n"); err = -EBUSY; goto out; } /* Reset HW statistics and SW counters */ mlx4_en_clear_stats(dev); err = mlx4_en_start_port(dev); if (err) en_err(priv, "Failed starting port:%d\n", priv->port); out: mutex_unlock(&mdev->state_lock); return err; } static int mlx4_en_close(struct net_device *dev) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; en_dbg(IFDOWN, priv, "Close port called\n"); mutex_lock(&mdev->state_lock); mlx4_en_stop_port(dev); netif_carrier_off(dev); mutex_unlock(&mdev->state_lock); return 0; } void mlx4_en_free_resources(struct mlx4_en_priv *priv) { int i; for (i = 0; i < priv->tx_ring_num; i++) { if (priv->tx_ring[i].tx_info) mlx4_en_destroy_tx_ring(priv, &priv->tx_ring[i]); if (priv->tx_cq[i].buf) mlx4_en_destroy_cq(priv, &priv->tx_cq[i]); } for (i = 0; i < priv->rx_ring_num; i++) { if (priv->rx_ring[i].rx_info) mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i], priv->prof->rx_ring_size, priv->stride); if (priv->rx_cq[i].buf) mlx4_en_destroy_cq(priv, &priv->rx_cq[i]); } if (priv->base_tx_qpn) { mlx4_qp_release_range(priv->mdev->dev, priv->base_tx_qpn, priv->tx_ring_num); priv->base_tx_qpn = 0; } } int mlx4_en_alloc_resources(struct mlx4_en_priv *priv) { struct mlx4_en_port_profile *prof = priv->prof; int i; int err; err = mlx4_qp_reserve_range(priv->mdev->dev, priv->tx_ring_num, 256, &priv->base_tx_qpn); if (err) { en_err(priv, "failed reserving range for TX rings\n"); return err; } /* Create tx Rings */ for (i = 0; i < priv->tx_ring_num; i++) { if (mlx4_en_create_cq(priv, &priv->tx_cq[i], prof->tx_ring_size, i, TX)) goto err; if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[i], priv->base_tx_qpn + i, prof->tx_ring_size, TXBB_SIZE)) goto err; } /* Create rx Rings */ for (i = 0; i < priv->rx_ring_num; i++) { if (mlx4_en_create_cq(priv, &priv->rx_cq[i], prof->rx_ring_size, i, RX)) goto err; if (mlx4_en_create_rx_ring(priv, &priv->rx_ring[i], prof->rx_ring_size, priv->stride)) goto err; } return 0; err: en_err(priv, "Failed to allocate NIC resources\n"); return -ENOMEM; } void mlx4_en_destroy_netdev(struct net_device *dev) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; en_dbg(DRV, priv, "Destroying netdev on port:%d\n", priv->port); /* Unregister device - this will close the port if it was up */ if (priv->registered) unregister_netdev(dev); if (priv->allocated) mlx4_free_hwq_res(mdev->dev, &priv->res, MLX4_EN_PAGE_SIZE); cancel_delayed_work(&priv->stats_task); /* flush any pending task for this netdev */ flush_workqueue(mdev->workqueue); /* Detach the netdev so tasks would not attempt to access it */ mutex_lock(&mdev->state_lock); mdev->pndev[priv->port] = NULL; mutex_unlock(&mdev->state_lock); mlx4_en_free_resources(priv); kfree(priv->tx_ring); kfree(priv->tx_cq); free_netdev(dev); } static int mlx4_en_change_mtu(struct net_device *dev, int new_mtu) { struct mlx4_en_priv *priv = netdev_priv(dev); struct mlx4_en_dev *mdev = priv->mdev; int err = 0; en_dbg(DRV, priv, "Change MTU called - current:%d new:%d\n", dev->mtu, new_mtu); if ((new_mtu < MLX4_EN_MIN_MTU) || (new_mtu > priv->max_mtu)) { en_err(priv, "Bad MTU size:%d.\n", new_mtu); return -EPERM; } dev->mtu = new_mtu; if (netif_running(dev)) { mutex_lock(&mdev->state_lock); if (!mdev->device_up) { /* NIC is probably restarting - let watchdog task reset * the port */ en_dbg(DRV, priv, "Change MTU called with card down!?\n"); } else { mlx4_en_stop_port(dev); err = mlx4_en_start_port(dev); if (err) { en_err(priv, "Failed restarting port:%d\n", priv->port); queue_work(mdev->workqueue, &priv->watchdog_task); } } mutex_unlock(&mdev->state_lock); } return 0; } static int mlx4_en_set_features(struct net_device *netdev, netdev_features_t features) { struct mlx4_en_priv *priv = netdev_priv(netdev); if (features & NETIF_F_LOOPBACK) priv->ctrl_flags |= cpu_to_be32(MLX4_WQE_CTRL_FORCE_LOOPBACK); else priv->ctrl_flags &= cpu_to_be32(~MLX4_WQE_CTRL_FORCE_LOOPBACK); return 0; } static const struct net_device_ops mlx4_netdev_ops = { .ndo_open = mlx4_en_open, .ndo_stop = mlx4_en_close, .ndo_start_xmit = mlx4_en_xmit, .ndo_select_queue = mlx4_en_select_queue, .ndo_get_stats = mlx4_en_get_stats, .ndo_set_rx_mode = mlx4_en_set_multicast, .ndo_set_mac_address = mlx4_en_set_mac, .ndo_validate_addr = eth_validate_addr, .ndo_change_mtu = mlx4_en_change_mtu, .ndo_tx_timeout = mlx4_en_tx_timeout, .ndo_vlan_rx_add_vid = mlx4_en_vlan_rx_add_vid, .ndo_vlan_rx_kill_vid = mlx4_en_vlan_rx_kill_vid, #ifdef CONFIG_NET_POLL_CONTROLLER .ndo_poll_controller = mlx4_en_netpoll, #endif .ndo_set_features = mlx4_en_set_features, .ndo_setup_tc = mlx4_en_setup_tc, }; int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, struct mlx4_en_port_profile *prof) { struct net_device *dev; struct mlx4_en_priv *priv; int i; int err; dev = alloc_etherdev_mqs(sizeof(struct mlx4_en_priv), prof->tx_ring_num, prof->rx_ring_num); if (dev == NULL) return -ENOMEM; SET_NETDEV_DEV(dev, &mdev->dev->pdev->dev); dev->dev_id = port - 1; /* * Initialize driver private data */ priv = netdev_priv(dev); memset(priv, 0, sizeof(struct mlx4_en_priv)); priv->dev = dev; priv->mdev = mdev; priv->ddev = &mdev->pdev->dev; priv->prof = prof; priv->port = port; priv->port_up = false; priv->flags = prof->flags; priv->ctrl_flags = cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE | MLX4_WQE_CTRL_SOLICITED); priv->tx_ring_num = prof->tx_ring_num; priv->tx_ring = kzalloc(sizeof(struct mlx4_en_tx_ring) * priv->tx_ring_num, GFP_KERNEL); if (!priv->tx_ring) { err = -ENOMEM; goto out; } priv->tx_cq = kzalloc(sizeof(struct mlx4_en_cq) * priv->tx_ring_num, GFP_KERNEL); if (!priv->tx_cq) { err = -ENOMEM; goto out; } priv->rx_ring_num = prof->rx_ring_num; priv->mac_index = -1; priv->msg_enable = MLX4_EN_MSG_LEVEL; spin_lock_init(&priv->stats_lock); INIT_WORK(&priv->mcast_task, mlx4_en_do_set_multicast); INIT_WORK(&priv->mac_task, mlx4_en_do_set_mac); INIT_WORK(&priv->watchdog_task, mlx4_en_restart); INIT_WORK(&priv->linkstate_task, mlx4_en_linkstate); INIT_DELAYED_WORK(&priv->stats_task, mlx4_en_do_get_stats); #ifdef CONFIG_MLX4_EN_DCB if (!mlx4_is_slave(priv->mdev->dev)) dev->dcbnl_ops = &mlx4_en_dcbnl_ops; #endif /* Query for default mac and max mtu */ priv->max_mtu = mdev->dev->caps.eth_mtu_cap[priv->port]; priv->mac = mdev->dev->caps.def_mac[priv->port]; if (ILLEGAL_MAC(priv->mac)) { en_err(priv, "Port: %d, invalid mac burned: 0x%llx, quiting\n", priv->port, priv->mac); err = -EINVAL; goto out; } priv->stride = roundup_pow_of_two(sizeof(struct mlx4_en_rx_desc) + DS_SIZE * MLX4_EN_MAX_RX_FRAGS); err = mlx4_en_alloc_resources(priv); if (err) goto out; /* Allocate page for receive rings */ err = mlx4_alloc_hwq_res(mdev->dev, &priv->res, MLX4_EN_PAGE_SIZE, MLX4_EN_PAGE_SIZE); if (err) { en_err(priv, "Failed to allocate page for rx qps\n"); goto out; } priv->allocated = 1; /* * Initialize netdev entry points */ dev->netdev_ops = &mlx4_netdev_ops; dev->watchdog_timeo = MLX4_EN_WATCHDOG_TIMEOUT; netif_set_real_num_tx_queues(dev, priv->tx_ring_num); netif_set_real_num_rx_queues(dev, priv->rx_ring_num); SET_ETHTOOL_OPS(dev, &mlx4_en_ethtool_ops); /* Set defualt MAC */ dev->addr_len = ETH_ALEN; for (i = 0; i < ETH_ALEN; i++) { dev->dev_addr[ETH_ALEN - 1 - i] = (u8) (priv->mac >> (8 * i)); dev->perm_addr[ETH_ALEN - 1 - i] = (u8) (priv->mac >> (8 * i)); } /* * Set driver features */ dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM; if (mdev->LSO_support) dev->hw_features |= NETIF_F_TSO | NETIF_F_TSO6; dev->vlan_features = dev->hw_features; dev->hw_features |= NETIF_F_RXCSUM | NETIF_F_RXHASH; dev->features = dev->hw_features | NETIF_F_HIGHDMA | NETIF_F_HW_VLAN_TX | NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER; dev->hw_features |= NETIF_F_LOOPBACK; mdev->pndev[port] = dev; netif_carrier_off(dev); err = register_netdev(dev); if (err) { en_err(priv, "Netdev registration failed for port %d\n", port); goto out; } priv->registered = 1; en_warn(priv, "Using %d TX rings\n", prof->tx_ring_num); en_warn(priv, "Using %d RX rings\n", prof->rx_ring_num); /* Configure port */ mlx4_en_calc_rx_buf(dev); err = mlx4_SET_PORT_general(mdev->dev, priv->port, priv->rx_skb_size + ETH_FCS_LEN, prof->tx_pause, prof->tx_ppp, prof->rx_pause, prof->rx_ppp); if (err) { en_err(priv, "Failed setting port general configurations " "for port %d, with error %d\n", priv->port, err); goto out; } /* Init port */ en_warn(priv, "Initializing port\n"); err = mlx4_INIT_PORT(mdev->dev, priv->port); if (err) { en_err(priv, "Failed Initializing port\n"); goto out; } mlx4_en_set_default_moderation(priv); queue_delayed_work(mdev->workqueue, &priv->stats_task, STATS_DELAY); return 0; out: mlx4_en_destroy_netdev(dev); return err; }
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-04 17:28:11 +0000