From 31278e71471399beaff9280737e52b47db4dc345 Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Wed, 17 Jun 2009 01:12:19 +0000 Subject: net: group address list and its count This patch is inspired by patch recently posted by Johannes Berg. Basically what my patch does is to group list and a count of addresses into newly introduced structure netdev_hw_addr_list. This brings us two benefits: 1) struct net_device becames a bit nicer. 2) in the future there will be a possibility to operate with lists independently on netdevices (with exporting right functions). I wanted to introduce this patch before I'll post a multicast lists conversion. Signed-off-by: Jiri Pirko drivers/net/bnx2.c | 4 +- drivers/net/e1000/e1000_main.c | 4 +- drivers/net/ixgbe/ixgbe_main.c | 6 +- drivers/net/mv643xx_eth.c | 2 +- drivers/net/niu.c | 4 +- drivers/net/virtio_net.c | 10 ++-- drivers/s390/net/qeth_l2_main.c | 2 +- include/linux/netdevice.h | 17 +++-- net/core/dev.c | 130 ++++++++++++++++++-------------------- 9 files changed, 89 insertions(+), 90 deletions(-) Signed-off-by: David S. Miller --- drivers/net/e1000/e1000_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/net/e1000/e1000_main.c') diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index 8d36743c8140..5e3356f8eb5a 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -2370,7 +2370,7 @@ static void e1000_set_rx_mode(struct net_device *netdev) rctl |= E1000_RCTL_VFE; } - if (netdev->uc_count > rar_entries - 1) { + if (netdev->uc.count > rar_entries - 1) { rctl |= E1000_RCTL_UPE; } else if (!(netdev->flags & IFF_PROMISC)) { rctl &= ~E1000_RCTL_UPE; @@ -2394,7 +2394,7 @@ static void e1000_set_rx_mode(struct net_device *netdev) */ i = 1; if (use_uc) - list_for_each_entry(ha, &netdev->uc_list, list) { + list_for_each_entry(ha, &netdev->uc.list, list) { if (i == rar_entries) break; e1000_rar_set(hw, ha->addr, i++); -- cgit v1.2.3 From 679be3ba0c493eb66d22c206273729ce50925e85 Mon Sep 17 00:00:00 2001 From: Jesse Brandeburg Date: Tue, 30 Jun 2009 12:45:34 +0000 Subject: e1000: fix unmap bug as reported by kerneloops.org [ 121.781161] ------------[ cut here ]------------ [ 121.781171] WARNING: at lib/dma-debug.c:793 check_unmap+0x14e/0x577() [ 121.781173] Hardware name: S5520HC [ 121.781177] e1000 0000:0a:00.0: DMA-API: device driver tries to free DMA memory it has not allocated [device address=0x00000001d688b0fa] [size=1522 bytes] [ 121.781180] Modules linked in: e1000 mdio dca [last unloaded: ixgbe] [ 121.781187] Pid: 4793, comm: bash Tainted: P 2.6.30-master-06161113 #3 [ 121.781190] Call Trace: [ 121.781195] [] ? check_unmap+0x14e/0x577 [ 121.781201] [] warn_slowpath_common+0x77/0x8f [ 121.781205] [] warn_slowpath_fmt+0x9f/0xa1 [ 121.781212] [] ? _spin_lock_irqsave+0x3f/0x49 [ 121.781216] [] ? get_hash_bucket+0x28/0x33 [ 121.781220] [] check_unmap+0x14e/0x577 [ 121.781225] [] ? check_bytes_and_report+0x38/0xcb [ 121.781230] [] debug_dma_unmap_page+0x80/0x92 [ 121.781234] [] ? unmap_single+0x1a/0x4e [ 121.781239] [] ? __kfree_skb+0x74/0x78 [ 121.781250] [] pci_unmap_single+0x64/0x6d [e1000] [ 121.781259] [] e1000_clean_rx_ring+0x4c/0xbf [e1000] [ 121.781268] [] e1000_clean_all_rx_rings+0x28/0x36 [e1000] [ 121.781277] [] e1000_down+0x138/0x141 [e1000] [ 121.781286] [] __e1000_shutdown+0x6b/0x198 [e1000] [ 121.781296] [] e1000_suspend+0x17/0x50 [e1000] [ 121.781301] [] pci_legacy_suspend+0x3b/0xbe [ 121.781305] [] pci_pm_suspend+0x3e/0xf1 [ 121.781310] [] pm_op+0x57/0xde [ 121.781314] [] dpm_suspend_start+0x31e/0x470 [ 121.781319] [] suspend_devices_and_enter+0x3e/0x1a2 [ 121.781323] [] enter_state+0xd1/0x127 [ 121.781327] [] state_store+0xa7/0xc9 [ 121.781332] [] kobj_attr_store+0x17/0x19 [ 121.781336] [] sysfs_write_file+0xe5/0x121 [ 121.781341] [] vfs_write+0xab/0x105 [ 121.781344] [] sys_write+0x47/0x6d [ 121.781349] [] system_call_fastpath+0x16/0x1b [ 121.781352] ---[ end trace 97bacaaac2ed7786 ]--- Fix is to correctly zero out internal ->dma value when unmapping and make sure never to unmap unless there specifically was a mapping done. Signed-off-by: Jesse Brandeburg Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/e1000/e1000_main.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'drivers/net/e1000/e1000_main.c') diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index 5e3356f8eb5a..972e06d984c8 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -2185,12 +2185,16 @@ static void e1000_clean_rx_ring(struct e1000_adapter *adapter, /* Free all the Rx ring sk_buffs */ for (i = 0; i < rx_ring->count; i++) { buffer_info = &rx_ring->buffer_info[i]; - if (buffer_info->skb) { + if (buffer_info->dma) { pci_unmap_single(pdev, buffer_info->dma, buffer_info->length, PCI_DMA_FROMDEVICE); + } + buffer_info->dma = 0; + + if (buffer_info->skb) { dev_kfree_skb(buffer_info->skb); buffer_info->skb = NULL; } @@ -4033,6 +4037,7 @@ static bool e1000_clean_rx_irq(struct e1000_adapter *adapter, buffer_info->dma, buffer_info->length, PCI_DMA_FROMDEVICE); + buffer_info->dma = 0; length = le16_to_cpu(rx_desc->length); /* !EOP means multiple descriptors were used to store a single @@ -4222,6 +4227,7 @@ map_skb: pci_unmap_single(pdev, buffer_info->dma, adapter->rx_buffer_len, PCI_DMA_FROMDEVICE); + buffer_info->dma = 0; break; /* while !buffer_info->skb */ } -- cgit v1.2.3 From eab633021c26025b34f36f79f0311d3d99f40ceb Mon Sep 17 00:00:00 2001 From: Andre Detsch Date: Tue, 30 Jun 2009 12:46:13 +0000 Subject: e1000: return PCI_ERS_RESULT_DISCONNECT on permanent error PCI drivers that implement the io_error_detected callback should return PCI_ERS_RESULT_DISCONNECT if the state passed in is pci_channel_io_perm_failure. This state is not checked in many of the network drivers. The patch fixes the omission in the e1000 driver. Based on Mike Mason's similar patch for e1000e. Signed-off-by: Andre Detsch CC: Mike Mason Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/e1000/e1000_main.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers/net/e1000/e1000_main.c') diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c index 972e06d984c8..5b8cbdb4b520 100644 --- a/drivers/net/e1000/e1000_main.c +++ b/drivers/net/e1000/e1000_main.c @@ -4823,6 +4823,9 @@ static pci_ers_result_t e1000_io_error_detected(struct pci_dev *pdev, netif_device_detach(netdev); + if (state == pci_channel_io_perm_failure) + return PCI_ERS_RESULT_DISCONNECT; + if (netif_running(netdev)) e1000_down(adapter); pci_disable_device(pdev); -- cgit v1.2.3