From 3cc81d85ee01e5a0b7ea2f4190e2ed1165f53c31 Mon Sep 17 00:00:00 2001 From: Michel Stam Date: Thu, 2 Oct 2014 10:22:02 +0200 Subject: asix: Don't reset PHY on if_up for ASIX 88772 I've noticed every time the interface is set to 'up,', the kernel reports that the link speed is set to 100 Mbps/Full Duplex, even when ethtool is used to set autonegotiation to 'off', half duplex, 10 Mbps. It can be tested by: ifconfig eth0 down ethtool -s eth0 autoneg off speed 10 duplex half ifconfig eth0 up Then checking 'dmesg' for the link speed. Signed-off-by: Michel Stam Signed-off-by: David S. Miller --- drivers/net/usb/asix_devices.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/usb/asix_devices.c b/drivers/net/usb/asix_devices.c index 5d194093f3e1..2c05f6cdb12f 100644 --- a/drivers/net/usb/asix_devices.c +++ b/drivers/net/usb/asix_devices.c @@ -890,7 +890,7 @@ static const struct driver_info ax88772_info = { .unbind = ax88772_unbind, .status = asix_status, .link_reset = ax88772_link_reset, - .reset = ax88772_reset, + .reset = ax88772_link_reset, .flags = FLAG_ETHER | FLAG_FRAMING_AX | FLAG_LINK_INTR | FLAG_MULTI_PACKET, .rx_fixup = asix_rx_fixup_common, .tx_fixup = asix_tx_fixup, -- cgit v1.2.3-59-g8ed1b From ea6a7112d8525f7b5b6fdd59b255845ed6331beb Mon Sep 17 00:00:00 2001 From: hayeswang Date: Thu, 2 Oct 2014 17:03:12 +0800 Subject: r8152: autoresume before setting MAC address Resume the device before setting the MAC address. Signed-off-by: Hayes Wang Signed-off-by: David S. Miller --- drivers/net/usb/r8152.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index 604ef210a4de..5ee75827bd36 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -1007,9 +1007,14 @@ static int rtl8152_set_mac_address(struct net_device *netdev, void *p) { struct r8152 *tp = netdev_priv(netdev); struct sockaddr *addr = p; + int ret = -EADDRNOTAVAIL; if (!is_valid_ether_addr(addr->sa_data)) - return -EADDRNOTAVAIL; + goto out1; + + ret = usb_autopm_get_interface(tp->intf); + if (ret < 0) + goto out1; memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); @@ -1017,7 +1022,9 @@ static int rtl8152_set_mac_address(struct net_device *netdev, void *p) pla_ocp_write(tp, PLA_IDR, BYTE_EN_SIX_BYTES, 8, addr->sa_data); ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CRWECR, CRWECR_NORAML); - return 0; + usb_autopm_put_interface(tp->intf); +out1: + return ret; } static void read_bulk_callback(struct urb *urb) -- cgit v1.2.3-59-g8ed1b From e87474a6e697857df21cff0707a2472abceca8b3 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Thu, 2 Oct 2014 09:43:16 -0700 Subject: net: systemport: fix bcm_sysport_insert_tsb() Similar to commit bc23333ba11fb7f959b7e87e121122f5a0fbbca8 ("net: bcmgenet: fix bcmgenet_put_tx_csum()"), we need to return the skb pointer in case we had to reallocate the SKB headroom. Fixes: 80105befdb4b8 ("net: systemport: add Broadcom SYSTEMPORT Ethernet MAC driver") Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bcmsysport.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c index d9b9170ed2fc..71068d7d930d 100644 --- a/drivers/net/ethernet/broadcom/bcmsysport.c +++ b/drivers/net/ethernet/broadcom/bcmsysport.c @@ -848,7 +848,8 @@ static irqreturn_t bcm_sysport_wol_isr(int irq, void *dev_id) return IRQ_HANDLED; } -static int bcm_sysport_insert_tsb(struct sk_buff *skb, struct net_device *dev) +static struct sk_buff *bcm_sysport_insert_tsb(struct sk_buff *skb, + struct net_device *dev) { struct sk_buff *nskb; struct bcm_tsb *tsb; @@ -864,7 +865,7 @@ static int bcm_sysport_insert_tsb(struct sk_buff *skb, struct net_device *dev) if (!nskb) { dev->stats.tx_errors++; dev->stats.tx_dropped++; - return -ENOMEM; + return NULL; } skb = nskb; } @@ -883,7 +884,7 @@ static int bcm_sysport_insert_tsb(struct sk_buff *skb, struct net_device *dev) ip_proto = ipv6_hdr(skb)->nexthdr; break; default: - return 0; + return skb; } /* Get the checksum offset and the L4 (transport) offset */ @@ -902,7 +903,7 @@ static int bcm_sysport_insert_tsb(struct sk_buff *skb, struct net_device *dev) tsb->l4_ptr_dest_map = csum_info; } - return 0; + return skb; } static netdev_tx_t bcm_sysport_xmit(struct sk_buff *skb, @@ -936,8 +937,8 @@ static netdev_tx_t bcm_sysport_xmit(struct sk_buff *skb, /* Insert TSB and checksum infos */ if (priv->tsb_en) { - ret = bcm_sysport_insert_tsb(skb, dev); - if (ret) { + skb = bcm_sysport_insert_tsb(skb, dev); + if (!skb) { ret = NETDEV_TX_OK; goto out; } -- cgit v1.2.3-59-g8ed1b From 47549650abd13d873fd2e5fc218db19e21031074 Mon Sep 17 00:00:00 2001 From: Joe Lawrence Date: Fri, 3 Oct 2014 09:58:34 -0400 Subject: team: avoid race condition in scheduling delayed work When team_notify_peers and team_mcast_rejoin are called, they both reset their respective .count_pending atomic variable. Then when the actual worker function is executed, the variable is atomically decremented. This pattern introduces a potential race condition where the .count_pending rolls over and the worker function keeps rescheduling until .count_pending decrements to zero again: THREAD 1 THREAD 2 ======== ======== team_notify_peers(teamX) atomic_set count_pending = 1 schedule_delayed_work team_notify_peers(teamX) atomic_set count_pending = 1 team_notify_peers_work atomic_dec_and_test count_pending = 0 (return) schedule_delayed_work team_notify_peers_work atomic_dec_and_test count_pending = -1 schedule_delayed_work (repeat until count_pending = 0) Instead of assigning a new value to .count_pending, use atomic_add to tack-on the additional desired worker function invocations. Signed-off-by: Joe Lawrence Acked-by: Jiri Pirko Fixes: fc423ff00df3a19554414ee ("team: add peer notification") Fixes: 492b200efdd20b8fcfdac87 ("team: add support for sending multicast rejoins") Signed-off-by: David S. Miller --- drivers/net/team/team.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c index ef10302ec936..1f76c2ea53f2 100644 --- a/drivers/net/team/team.c +++ b/drivers/net/team/team.c @@ -647,7 +647,7 @@ static void team_notify_peers(struct team *team) { if (!team->notify_peers.count || !netif_running(team->dev)) return; - atomic_set(&team->notify_peers.count_pending, team->notify_peers.count); + atomic_add(team->notify_peers.count, &team->notify_peers.count_pending); schedule_delayed_work(&team->notify_peers.dw, 0); } @@ -687,7 +687,7 @@ static void team_mcast_rejoin(struct team *team) { if (!team->mcast_rejoin.count || !netif_running(team->dev)) return; - atomic_set(&team->mcast_rejoin.count_pending, team->mcast_rejoin.count); + atomic_add(team->mcast_rejoin.count, &team->mcast_rejoin.count_pending); schedule_delayed_work(&team->mcast_rejoin.dw, 0); } -- cgit v1.2.3-59-g8ed1b From 3a67c9ccad926a168d8b7891537a452018368a5b Mon Sep 17 00:00:00 2001 From: KY Srinivasan Date: Sun, 5 Oct 2014 10:42:51 -0700 Subject: hyperv: Fix a bug in netvsc_send() After the packet is successfully sent, we should not touch the packet as it may have been freed. This patch is based on the work done by Long Li . David, please queue this up for stable. Signed-off-by: K. Y. Srinivasan Reported-by: Sitsofe Wheeler Signed-off-by: David S. Miller --- drivers/net/hyperv/netvsc.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c index 66979cf7fca6..da2d34688370 100644 --- a/drivers/net/hyperv/netvsc.c +++ b/drivers/net/hyperv/netvsc.c @@ -705,6 +705,7 @@ int netvsc_send(struct hv_device *device, unsigned int section_index = NETVSC_INVALID_INDEX; u32 msg_size = 0; struct sk_buff *skb; + u16 q_idx = packet->q_idx; net_device = get_outbound_net_device(device); @@ -769,24 +770,24 @@ int netvsc_send(struct hv_device *device, if (ret == 0) { atomic_inc(&net_device->num_outstanding_sends); - atomic_inc(&net_device->queue_sends[packet->q_idx]); + atomic_inc(&net_device->queue_sends[q_idx]); if (hv_ringbuf_avail_percent(&out_channel->outbound) < RING_AVAIL_PERCENT_LOWATER) { netif_tx_stop_queue(netdev_get_tx_queue( - ndev, packet->q_idx)); + ndev, q_idx)); if (atomic_read(&net_device-> - queue_sends[packet->q_idx]) < 1) + queue_sends[q_idx]) < 1) netif_tx_wake_queue(netdev_get_tx_queue( - ndev, packet->q_idx)); + ndev, q_idx)); } } else if (ret == -EAGAIN) { netif_tx_stop_queue(netdev_get_tx_queue( - ndev, packet->q_idx)); - if (atomic_read(&net_device->queue_sends[packet->q_idx]) < 1) { + ndev, q_idx)); + if (atomic_read(&net_device->queue_sends[q_idx]) < 1) { netif_tx_wake_queue(netdev_get_tx_queue( - ndev, packet->q_idx)); + ndev, q_idx)); ret = -ENOSPC; } } else { -- cgit v1.2.3-59-g8ed1b From 0f6a670116921eae11b81f1760e2fff1148712de Mon Sep 17 00:00:00 2001 From: Antoine Ténart Date: Fri, 3 Oct 2014 17:01:55 +0200 Subject: net: spider_net: do not read mac address again after setting it This patch removes the spider_net_get_mac_address() call at the end of the spider_net_set_mac() function. The dev->dev_addr is instead updated with a memcpy() from sa->sa_data. Since spider_net_get_mac_address() is not used anywhere else, this patch also removes the function. Signed-off-by: Antoine Tenart Signed-off-by: David S. Miller --- drivers/net/ethernet/toshiba/spider_net.c | 36 ++----------------------------- 1 file changed, 2 insertions(+), 34 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/toshiba/spider_net.c b/drivers/net/ethernet/toshiba/spider_net.c index 3e38f67c6011..713313e15c68 100644 --- a/drivers/net/ethernet/toshiba/spider_net.c +++ b/drivers/net/ethernet/toshiba/spider_net.c @@ -266,34 +266,6 @@ spider_net_set_promisc(struct spider_net_card *card) } } -/** - * spider_net_get_mac_address - read mac address from spider card - * @card: device structure - * - * reads MAC address from GMACUNIMACU and GMACUNIMACL registers - */ -static int -spider_net_get_mac_address(struct net_device *netdev) -{ - struct spider_net_card *card = netdev_priv(netdev); - u32 macl, macu; - - macl = spider_net_read_reg(card, SPIDER_NET_GMACUNIMACL); - macu = spider_net_read_reg(card, SPIDER_NET_GMACUNIMACU); - - netdev->dev_addr[0] = (macu >> 24) & 0xff; - netdev->dev_addr[1] = (macu >> 16) & 0xff; - netdev->dev_addr[2] = (macu >> 8) & 0xff; - netdev->dev_addr[3] = macu & 0xff; - netdev->dev_addr[4] = (macl >> 8) & 0xff; - netdev->dev_addr[5] = macl & 0xff; - - if (!is_valid_ether_addr(&netdev->dev_addr[0])) - return -EINVAL; - - return 0; -} - /** * spider_net_get_descr_status -- returns the status of a descriptor * @descr: descriptor to look at @@ -1345,6 +1317,8 @@ spider_net_set_mac(struct net_device *netdev, void *p) if (!is_valid_ether_addr(addr->sa_data)) return -EADDRNOTAVAIL; + memcpy(netdev->dev_addr, addr->sa_data, ETH_ALEN); + /* switch off GMACTPE and GMACRPE */ regvalue = spider_net_read_reg(card, SPIDER_NET_GMACOPEMD); regvalue &= ~((1 << 5) | (1 << 6)); @@ -1364,12 +1338,6 @@ spider_net_set_mac(struct net_device *netdev, void *p) spider_net_set_promisc(card); - /* look up, whether we have been successful */ - if (spider_net_get_mac_address(netdev)) - return -EADDRNOTAVAIL; - if (memcmp(netdev->dev_addr,addr->sa_data,netdev->addr_len)) - return -EADDRNOTAVAIL; - return 0; } -- cgit v1.2.3-59-g8ed1b From 96aacededcc601f5af894ead6b481e76cc8db2cd Mon Sep 17 00:00:00 2001 From: Antoine Ténart Date: Fri, 3 Oct 2014 17:01:56 +0200 Subject: net: spider_net: avoid using signed char for bitops Signedness bugs may occur when using signed char for bitops, depending on if the highest bit is ever used. Signed-off-by: Antoine Tenart Signed-off-by: David S. Miller --- drivers/net/ethernet/toshiba/spider_net.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/toshiba/spider_net.c b/drivers/net/ethernet/toshiba/spider_net.c index 713313e15c68..8e9371a3388a 100644 --- a/drivers/net/ethernet/toshiba/spider_net.c +++ b/drivers/net/ethernet/toshiba/spider_net.c @@ -1325,9 +1325,9 @@ spider_net_set_mac(struct net_device *netdev, void *p) spider_net_write_reg(card, SPIDER_NET_GMACOPEMD, regvalue); /* write mac */ - macu = (addr->sa_data[0]<<24) + (addr->sa_data[1]<<16) + - (addr->sa_data[2]<<8) + (addr->sa_data[3]); - macl = (addr->sa_data[4]<<8) + (addr->sa_data[5]); + macu = (netdev->dev_addr[0]<<24) + (netdev->dev_addr[1]<<16) + + (netdev->dev_addr[2]<<8) + (netdev->dev_addr[3]); + macl = (netdev->dev_addr[4]<<8) + (netdev->dev_addr[5]); spider_net_write_reg(card, SPIDER_NET_GMACUNIMACU, macu); spider_net_write_reg(card, SPIDER_NET_GMACUNIMACL, macl); -- cgit v1.2.3-59-g8ed1b From 6654cf60ab888170693084a06dfb7c00977ad964 Mon Sep 17 00:00:00 2001 From: Ivan Vecera Date: Mon, 6 Oct 2014 19:02:37 +0200 Subject: bna: allow transmit tagged frames When Tx VLAN offloading is disabled frames with size ~ MTU are not transmitted as the driver does not account 4 bytes of VLAN header added by stack. It should use VLAN_ETH_HLEN instead of ETH_HLEN. The second problem is with newer BNA chips (BNA 1860). These chips filter out any VLAN tagged frames in Tx path. This is a problem when Tx VLAN offloading is disabled and frames are tagged by stack. Older chips like 1010/1020 are not affected as they probably don't do such filtering. Cc: Rasesh Mody Signed-off-by: Ivan Vecera Signed-off-by: David S. Miller --- drivers/net/ethernet/brocade/bna/bna_tx_rx.c | 2 +- drivers/net/ethernet/brocade/bna/bnad.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/brocade/bna/bna_tx_rx.c b/drivers/net/ethernet/brocade/bna/bna_tx_rx.c index 85e63546abe3..9949bd9d54cb 100644 --- a/drivers/net/ethernet/brocade/bna/bna_tx_rx.c +++ b/drivers/net/ethernet/brocade/bna/bna_tx_rx.c @@ -3410,7 +3410,7 @@ bna_bfi_tx_enet_start(struct bna_tx *tx) cfg_req->tx_cfg.vlan_mode = BFI_ENET_TX_VLAN_WI; cfg_req->tx_cfg.vlan_id = htons((u16)tx->txf_vlan_id); - cfg_req->tx_cfg.admit_tagged_frame = BNA_STATUS_T_DISABLED; + cfg_req->tx_cfg.admit_tagged_frame = BNA_STATUS_T_ENABLED; cfg_req->tx_cfg.apply_vlan_filter = BNA_STATUS_T_DISABLED; bfa_msgq_cmd_set(&tx->msgq_cmd, NULL, NULL, diff --git a/drivers/net/ethernet/brocade/bna/bnad.c b/drivers/net/ethernet/brocade/bna/bnad.c index ffc92a41d75b..153cafac323c 100644 --- a/drivers/net/ethernet/brocade/bna/bnad.c +++ b/drivers/net/ethernet/brocade/bna/bnad.c @@ -2864,7 +2864,7 @@ bnad_txq_wi_prepare(struct bnad *bnad, struct bna_tcb *tcb, txqent->hdr.wi.opcode = htons(BNA_TXQ_WI_SEND); txqent->hdr.wi.lso_mss = 0; - if (unlikely(skb->len > (bnad->netdev->mtu + ETH_HLEN))) { + if (unlikely(skb->len > (bnad->netdev->mtu + VLAN_ETH_HLEN))) { BNAD_UPDATE_CTR(bnad, tx_skb_non_tso_too_long); return -EINVAL; } -- cgit v1.2.3-59-g8ed1b From 88b09a6d958af6c458acf055ee2eb5bc9564efda Mon Sep 17 00:00:00 2001 From: "Sylvain \"ythier\" Hitier" Date: Tue, 7 Oct 2014 13:40:34 +0000 Subject: 3c59x: fix bad split of cpu_to_le32(pci_map_single()) In commit 6f2b6a3005b2c34c39f207a87667564f64f2f91a, # 3c59x: Add dma error checking and recovery the intent is to split out the mapping from the byte-swapping in order to insert a dma_mapping_error() check. Kinda this semantic patch: // See http://coccinelle.lip6.fr/ // // Beware, grouik-and-dirty! @@ expression DEV, X, Y, Z; @@ - cpu_to_le32(pci_map_single(DEV, X, Y, Z)) + dma_addr_t addr = pci_map_single(DEV, X, Y, Z); + if (dma_mapping_error(&DEV->dev, addr)) + /* snip */; + cpu_to_le32(addr) However, the #else part (of the #if DO_ZEROCOPY test) is changed this way: - cpu_to_le32(pci_map_single(DEV, X, Y, Z)) + dma_addr_t addr = cpu_to_le32(pci_map_single(DEV, X, Y, Z)); // ^^^^^^^^^^^ // That mismatches the 3 other changes! + if (dma_mapping_error(&DEV->dev, addr)) + /* snip */; + cpu_to_le32(addr) Let's remove the leftover cpu_to_le32() for coherency. v2: Better changelog. v3: Add Acked-by Fixes: 6f2b6a3005b2c34c39f207a87667564f64f2f91a # 3c59x: Add dma error checking and recovery Acked-by: Neil Horman Signed-off-by: Sylvain "ythier" Hitier Signed-off-by: David S. Miller --- drivers/net/ethernet/3com/3c59x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/net') diff --git a/drivers/net/ethernet/3com/3c59x.c b/drivers/net/ethernet/3com/3c59x.c index 8ca49f04acec..0a3108b3c267 100644 --- a/drivers/net/ethernet/3com/3c59x.c +++ b/drivers/net/ethernet/3com/3c59x.c @@ -2214,7 +2214,7 @@ boomerang_start_xmit(struct sk_buff *skb, struct net_device *dev) } } #else - dma_addr = cpu_to_le32(pci_map_single(VORTEX_PCI(vp), skb->data, skb->len, PCI_DMA_TODEVICE)); + dma_addr = pci_map_single(VORTEX_PCI(vp), skb->data, skb->len, PCI_DMA_TODEVICE); if (dma_mapping_error(&VORTEX_PCI(vp)->dev, dma_addr)) goto out_dma_err; vp->tx_ring[entry].addr = cpu_to_le32(dma_addr); -- cgit v1.2.3-59-g8ed1b