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2010-05-08ipv4: remove ip_rt_secret timer (v4)Neil Horman3-102/+8
A while back there was a discussion regarding the rt_secret_interval timer. Given that we've had the ability to do emergency route cache rebuilds for awhile now, based on a statistical analysis of the various hash chain lengths in the cache, the use of the flush timer is somewhat redundant. This patch removes the rt_secret_interval sysctl, allowing us to rely solely on the statistical analysis mechanism to determine the need for route cache flushes. Signed-off-by: Neil Horman <[email protected]> Acked-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-07Revert "microblaze: Kill NET_SKB_PAD and NET_IP_ALIGN overrides."David S. Miller1-0/+10
This reverts commit 39e0786d3cf39c6d2f47b4818ae2da8b8ebc9ce2. On request from microblaze developers, they are going to handle this differently. Signed-off-by: David S. Miller <[email protected]>
2010-05-06bnx2: Add prefetches to rx path.Michael Chan2-3/+14
Add prefetches of the skb and the next rx descriptor to speed up rx path. Use prefetchw() for the skb [suggested by Eric Dumazet]. The rx descriptor is in skb->data which is mapped for streaming mode DMA. Eric Dumazet pointed out that we should not prefetch the data before dma_sync. So we prefetch only if dma_sync is no_op on the system. Signed-off-by: Michael Chan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-06bnx2: Add GRO support.Michael Chan1-3/+3
And turn on NETIF_F_GRO by default [requested by DaveM]. Signed-off-by: Michael Chan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-06tehuti: Remove unnecessary memset of netdev private dataTobias Klauser1-1/+0
The memory for the private data is allocated using kzalloc in alloc_etherdev (or alloc_netdev_mq respectively) so there is no need to set it to 0 again. Signed-off-by: Tobias Klauser <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-06sunhme: Remove unnecessary memset of netdev private dataTobias Klauser1-1/+0
The memory for the private data is allocated using kzalloc in alloc_etherdev (or alloc_netdev_mq respectively) so there is no need to set it to 0 again. Signed-off-by: Tobias Klauser <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-06smc9194: Remove unnecessary memset of netdev private dataTobias Klauser1-3/+0
The memory for the private data is allocated using kzalloc in alloc_etherdev (or alloc_netdev_mq respectively) so there is no need to set it to 0 again. Signed-off-by: Tobias Klauser <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-06ethoc: Remove unnecessary memset of napi member in netdev private dataTobias Klauser1-1/+0
The memory for the private data is allocated using kzalloc in alloc_etherdev (or alloc_netdev_mq respectively) so there is no need to set the napi member it to 0 explicitely. Signed-off-by: Tobias Klauser <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-06bcm63xx_enet: Remove unnecessary memset of netdev private dataTobias Klauser1-1/+0
The memory for the private data is allocated using kzalloc in alloc_etherdev (or alloc_netdev_mq respectively) so there is no need to set it to 0 again. Signed-off-by: Tobias Klauser <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-06KS8695: Remove unnecessary memset of netdev private dataTobias Klauser1-1/+0
The memory for the private data is allocated using kzalloc in alloc_etherdev (or alloc_netdev_mq respectively) so there is no need to set it to 0 again. Signed-off-by: Tobias Klauser <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-063c523: Remove unnecessary memset of netdev private dataTobias Klauser1-1/+0
The memory for the private data is allocated using kzalloc in alloc_etherdev (or alloc_netdev_mq respectively) so there is no need to set it to 0 again. Signed-off-by: Tobias Klauser <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-063c507: Remove unnecessary memset of netdev private dataTobias Klauser1-1/+0
The memory for the private data is allocated using kzalloc in alloc_etherdev (or alloc_netdev_mq respectively) so there is no need to set it to 0 again. Signed-off-by: Tobias Klauser <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-06rps: Various optimizationsEric Dumazet1-6/+22
Introduce ____napi_schedule() helper for callers in irq disabled contexts. rps_trigger_softirq() becomes a leaf function. Use container_of() in process_backlog() instead of accessing per_cpu address. Use a custom inlined version of __napi_complete() in process_backlog() to avoid one locked instruction : only current cpu owns and manipulates this napi, and NAPI_STATE_SCHED is the only possible flag set on backlog. we can use a plain write instead of clear_bit(), and we dont need an smp_mb() memory barrier, since RPS is on, backlog is protected by a spinlock. Signed-off-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-06microblaze: Kill NET_SKB_PAD and NET_IP_ALIGN overrides.David S. Miller1-10/+0
NET_IP_ALIGN defaults to 2, no need to override. NET_SKB_PAD is now 64, which is much larger than microblaze's L1_CACHE_SIZE so no need to override that either. Signed-off-by: David S. Miller <[email protected]>
2010-05-06net: Increase NET_SKB_PAD to 64 bytesEric Dumazet1-1/+4
eth_type_trans() & get_rps_cpus() currently need two 64bytes cache lines in packet to compute rxhash. Increasing NET_SKB_PAD from 32 to 64 reduces the need to one cache line only, and makes RPS faster. NET_IP_ALIGN(2) + ethernet_header(14) + IP_header(20/40) + ports(8) Signed-off-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-06ipv6: udp: make short packet logging consistent with ipv4Bjørn Mork1-3/+8
Adding addresses and ports to the short packet log message, like ipv4/udp.c does it, makes these messages a lot more useful: [ 822.182450] UDPv6: short packet: From [2001:db8:ffb4:3::1]:47839 23715/178 to [2001:db8:ffb4:3:5054:ff:feff:200]:1234 This requires us to drop logging in case pskb_may_pull() fails, which also is consistent with ipv4/udp.c Signed-off-by: Bjørn Mork <[email protected]> Acked-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-06net: emaclite: Use resource_sizeTobias Klauser1-2/+2
Use the resource_size function instead of manually calculating the resource size. This reduces the chance of introducing off-by-one errors. Signed-off-by: Tobias Klauser <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-06e1000e: Reset 82577/82578 PHY before first PHY register readBruce Allan1-0/+10
Reset the PHY before first accessing it. Doing so, ensure that the PHY is in a known good state before we read/write PHY registers. This fixes a driver probe failure. Signed-off-by: Bruce Allan <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-06e1000e: reset MAC-PHY interconnect on 82577/82578 during Sx->S0Bruce Allan2-0/+22
During Sx->S0 transitions, the interconnect between the MAC and PHY on 82577/82578 can remain in SMBus mode instead of transitioning to the PCIe-like mode required during normal operation. Toggling the LANPHYPC Value bit essentially resets the interconnect forcing it to the correct mode. Signed-off-by: Bruce Allan <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-06netpoll: Use 'bool' for netpoll_rx() return type.David S. Miller1-4/+4
Signed-off-by: David S. Miller <[email protected]>
2010-05-06bonding: make bonding support netpollWANG Cong1-1/+98
Based on Andy's work, but I modified a lot. Similar to the patch for bridge, this patch does: 1) implement the 2 methods to support netpoll for bonding; 2) modify netpoll during forwarding packets via bonding; 3) disable netpoll support of bonding when a netpoll-unabled device is added to bonding; 4) enable netpoll support when all underlying devices support netpoll. Cc: Andy Gospodarek <[email protected]> Cc: Jeff Moyer <[email protected]> Cc: Matt Mackall <[email protected]> Cc: Neil Horman <[email protected]> Cc: Jay Vosburgh <[email protected]> Cc: David Miller <[email protected]> Signed-off-by: WANG Cong <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-06bridge: make bridge support netpollWANG Cong4-1/+108
Based on the previous patch, make bridge support netpoll by: 1) implement the 2 methods to support netpoll for bridge; 2) modify netpoll during forwarding packets via bridge; 3) disable netpoll support of bridge when a netpoll-unabled device is added to bridge; 4) enable netpoll support when all underlying devices support netpoll. Cc: David Miller <[email protected]> Cc: Neil Horman <[email protected]> Cc: Stephen Hemminger <[email protected]> Cc: Matt Mackall <[email protected]> Signed-off-by: WANG Cong <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-06netpoll: add generic support for bridge and bonding devicesWANG Cong6-11/+39
This whole patchset is for adding netpoll support to bridge and bonding devices. I already tested it for bridge, bonding, bridge over bonding, and bonding over bridge. It looks fine now. To make bridge and bonding support netpoll, we need to adjust some netpoll generic code. This patch does the following things: 1) introduce two new priv_flags for struct net_device: IFF_IN_NETPOLL which identifies we are processing a netpoll; IFF_DISABLE_NETPOLL is used to disable netpoll support for a device at run-time; 2) introduce one new method for netdev_ops: ->ndo_netpoll_cleanup() is used to clean up netpoll when a device is removed. 3) introduce netpoll_poll_dev() which takes a struct net_device * parameter; export netpoll_send_skb() and netpoll_poll_dev() which will be used later; 4) hide a pointer to struct netpoll in struct netpoll_info, ditto. 5) introduce ->real_dev for struct netpoll. 6) introduce a new status NETDEV_BONDING_DESLAE, which is used to disable netconsole before releasing a slave, to avoid deadlocks. Cc: David Miller <[email protected]> Cc: Neil Horman <[email protected]> Signed-off-by: WANG Cong <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-06ixgbevf: Cache PF ack bit in interruptGreg Rose1-0/+16
When the PF acks a message from the VF the VF gets an interrupt. It must cache the ack bit so that polling SW will not miss the ack. Also avoid reading the message buffer on acks because that also will clear the ack bit. Signed-off-by: Greg Rose <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-06ixgbe: Streamline MC filter setup for VFsGreg Rose1-2/+11
The driver was calling the set Rx mode function for every multicast filter set by the VF. When starting many VMs where each might have multiple VLAN interfaces this would result in the function being called hundreds or even thousands of times. This is unnecessary for the case of the imperfect filters used in the MTA and has been streamlined to be more efficient. Signed-off-by: Greg Rose <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-06ixgbe: Remove unneeded register writes in VF VLAN setupGreg Rose1-11/+0
The driver is unnecessarily writing values to VLAN control registers. These writes already done elsewhere and are superfluous here. Signed-off-by: Greg Rose <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-06Merge branch 'vhost' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostDavid S. Miller3-8/+53
2010-05-05igb: reduce cache misses on tx cleanupNick Nunley2-27/+22
This patch reduces the number of skb cache misses in the clean_tx_irq path, and results in an overall increase in tx packet throughput. Signed-off-by: Nicholas Nunley <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-05ks8851: companion eeprom access through ethtoolSebastien Jan1-0/+114
Accessing ks8851 companion eeprom permits modifying the ks8851 stored MAC address. Example how to change the MAC address using ethtool, to set the 01:23:45:67:89:AB MAC address: $ echo "0:AB8976452301" | xxd -r > mac.bin $ sudo ethtool -E eth0 magic 0x8870 offset 2 < mac.bin Signed-off-by: Sebastien Jan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-05ks8851: Low level functions for read/write to companion eepromSebastien Jan2-1/+241
Low-level functions provide 16bits words read and write capability to ks8851 companion eeprom. Signed-off-by: Sebastien Jan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-05ks8851: Add caching of CCR registerSebastien Jan1-0/+12
CCR register contains information on companion eeprom availability. Signed-off-by: Sebastien Jan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-05forcedeth: Account for consumed budget in napi pollTom Herbert1-2/+3
Repeated calls to nv_rx_process in napi poll routine do not take portion of budget that has been consumed in previous calls. Fix by subtracting the number of packets processed. Signed-off-by: Tom Herbert <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-05netdev: octeon_mgmt: Remove some gratuitous blank lines.David Daney1-7/+0
Signed-off-by: David Daney <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-05netdev: octeon_mgmt: Try not to drop TX packets when stopping the queue.David Daney1-5/+11
Stop the queue when we add the packet that will fill it instead of dropping the packet Signed-off-by: David Daney <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-05netdev: octeon_mgmt: Free TX skbufs in a timely manner.David Daney1-3/+2
We also reduce the high water mark to 1 so skbufs are not stranded for long periods of time. Since we are cleaning after each packet, no need to do it in the transmit path. Signed-off-by: David Daney <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-05netdev: octeon_mgmt: Fix race manipulating irq bits.David Daney1-2/+1
Don't re-read the interrupt status register, clear the exact bits we will be testing. Signed-off-by: David Daney <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-05netdev: octeon_mgmt: Fix race condition freeing TX buffers.David Daney1-2/+9
Under heavy load the TX cleanup tasklet and xmit threads would race and try to free too many buffers. Signed-off-by: David Daney <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-05netdev: octeon_mgmt: Use proper MAC addresses.David Daney1-10/+5
The original implementation incorrectly uses netdev->dev_addrs. Use netdev->uc instead. Also use netdev_for_each_uc_addr to iterate over the addresses. Fix comment. Signed-off-by: David Daney <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-05ixgbe: Add support for VF MAC and VLAN configurationGreg Rose5-4/+118
Add support for the "ip link set" and "ip link show" commands that allow configuration of the virtual functions' MAC and port VLAN via user space command line. Signed-off-by: Greg Rose <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-05ixgbe: Add boolean parameter to ixgbe_set_vmolrGreg Rose3-6/+9
Add a boolean parameter to ixgbe-set_vmolr so that the caller can specify whether the pool should accept untagged packets. Required for a follow on patch to enable administrative configuration of port VLAN for virtual functions. Signed-off-by: Greg Rose <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-05e1000/e1000e: implement a simple interrupt moderationJesse Brandeburg6-10/+57
Back before e1000-7.3.20, the e1000 driver had a simple algorithm that managed interrupt moderation. The driver was updated in 7.3.20 to have the new "adaptive" interrupt moderation but we have customer requests to redeploy the old way as an option. This patch adds the old functionality back. The new functionality can be enabled via module parameter or at runtime via ethtool. Module parameter: (InterruptThrottleRate=4) to use this new moderation method. Ethtool method: ethtool -C ethX rx-usecs 4 Signed-off-by: Jesse Brandeburg <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-05e1000e: increase rx fifo size to 36K on 82574 and 82583Alexander Duyck1-2/+2
This change increases the RX fifo size to 36K for standard frames and decreases the TX fifo size to 4K. The reason for this change is that on slower systems the RX is much more likely to backfill and need space than the TX is. As long as the TX fifo is twice the size of the MTU we should have more than enough TX fifo. Signed-off-by: Alexander Duyck <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-05e1000e: Save irq into netdev structureTom Herbert1-0/+2
Set net->devirq to pdev->irq. This should be consistent with other drivers. Signed-off-by: Tom Herbert <[email protected]> Acked-by: Bruce Allan <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-05e1000e: Remove unnessary log messageTom Herbert1-1/+0
Remove e_info message printed whenever TSO is enabled or disabled. This is not very useful and just clutters dmesg. Signed-off-by: Tom Herbert <[email protected]> Acked-by: Bruce Allan <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-05e1000e: reduce writes of RX producer ptrTom Herbert1-34/+23
Reduce number of writes to RX producer pointer. When alloc'ing RX buffers, only write the RX producer pointer once every E1000_RX_BUFFER_WRITE (16) buffers created. Signed-off-by: Tom Herbert <[email protected]> Acked-by: Bruce Allan <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-05e1000e: save skb counts in TX to avoid cache missesTom Herbert2-9/+11
In e1000_tx_map, precompute number of segements and bytecounts which are derived from fields in skb; these are stored in buffer_info. When cleaning tx in e1000_clean_tx_irq use the values in the associated buffer_info for statistics counting, this eliminates cache misses on skb fields. Signed-off-by: Tom Herbert <[email protected]> Acked-by: Bruce Allan <[email protected]> Signed-off-by: Jeff Kirsher <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-05bnx2x: Fix check to get RX hashTom Herbert1-1/+1
Flag used in check to get rxhash out of the descriptor is incorrect one. Fix to use the proper features flag. Signed-off-by: Tom Herbert <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-05-05Merge branch 'for-davem' of ↵David S. Miller140-1368/+4751
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
2010-05-05Merge branch 'master' of ↵John W. Linville140-1368/+4751
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6 into for-davem Conflicts: drivers/net/wireless/libertas_tf/cmd.c drivers/net/wireless/libertas_tf/main.c
2010-05-05mac80211: use fixed channel in ibss join when appropriateJohannes Berg1-0/+6
"mac80211: improve IBSS scanning" was missing a hunk. This adds that hunk as originally intended. Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: John W. Linville <[email protected]>
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