- 06 May, 2010 14 commits
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David Daney authored
Stop the queue when we add the packet that will fill it instead of dropping the packet Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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David Daney authored
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 <ddaney@caviumnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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David Daney authored
Don't re-read the interrupt status register, clear the exact bits we will be testing. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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David Daney authored
Under heavy load the TX cleanup tasklet and xmit threads would race and try to free too many buffers. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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David Daney authored
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 <ddaney@caviumnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Greg Rose authored
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 <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Greg Rose authored
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 <gregory.v.rose@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Jesse Brandeburg authored
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 <jesse.brandeburg@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Alexander Duyck authored
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 <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Tom Herbert authored
Set net->devirq to pdev->irq. This should be consistent with other drivers. Signed-off-by: Tom Herbert <therbert@google.com> Acked-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Tom Herbert authored
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 <therbert@google.com> Acked-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Tom Herbert authored
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 <therbert@google.com> Acked-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Tom Herbert authored
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 <therbert@google.com> Acked-by: Bruce Allan <bruce.w.allan@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Tom Herbert authored
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 <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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- 05 May, 2010 6 commits
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David S. Miller authored
Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
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John W. Linville authored
Merge branch 'master' of 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
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Johannes Berg authored
"mac80211: improve IBSS scanning" was missing a hunk. This adds that hunk as originally intended. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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John W. Linville authored
Signed-off-by: John W. Linville <linville@tuxdriver.com> Acked-by: Hin-Tak Leung <htl10@users.sourceforge.net>
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Eric Dumazet authored
With following patch I can reach maximum rate of my pktgen+udpsink simulator : - 'old' machine : dual quad core E5450 @3.00GHz - 64 UDP rx flows (only differ by destination port) - RPS enabled, NIC interrupts serviced on cpu0 - rps dispatched on 7 other cores. (~130.000 IPI per second) - SLAB allocator (faster than SLUB in this workload) - tg3 NIC - 1.080.000 pps without a single drop at NIC level. Idea is to add two prefetchw() calls in __alloc_skb(), one to prefetch first sk_buff cache line, the second to prefetch the shinfo part. Also using one memset() to initialize all skb_shared_info fields instead of one by one to reduce number of instructions, using long word moves. All skb_shared_info fields before 'dataref' are cleared in __alloc_skb(). Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Jiri Pirko authored
pernet memory is guaranteed to exist when notifiers are called. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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- 04 May, 2010 9 commits
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John W. Linville authored
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Gertjan van Wingerde authored
And use it consistently in the chipset drivers. Preparation for further clean ups. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Gertjan van Wingerde authored
Inspection of the Ralink vendor driver shows that the TX_BAND_CFG register and BBP register 3 are about HT40- indication, not about HT40+ indication. Inverse the meaning of these fields in the code. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Gertjan van Wingerde authored
Now that RT30xx support is at the same level as RT28xx support we can enable these devices by default. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Gertjan van Wingerde authored
PCI specific code has been remove quite some time ago. Signed-off-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Reinette Chatre authored
We currently have this check as a BUG_ON, which is being hit by people. Previously it was an error with a recalculation if not current, return that code. The BUG_ON was introduced by: commit 3110bef7 Author: Guy Cohen <guy.cohen@intel.com> Date: Tue Sep 9 10:54:54 2008 +0800 iwlwifi: Added support for 3 antennas ... the portion adding the BUG_ON is reverted since we are encountering the error and BUG_ON was created with assumption that error is not encountered. Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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David S. Miller authored
All distributions enable it, therefore no significant body of users are even testing the driver with it disabled. And making NAPI configurable is heavily discouraged anyways. I left the MSI-X interrupt enabling thing in an "#if 0" block so hopefully someone can debug that and it can get re-enabled. Probably it was just one of the NVIDIA chipset MSI erratas that we work handle these days in the PCI quirks (see drivers/pci/quirks.c and stuff like nvenet_msi_disable()). Signed-off-by: David S. Miller <davem@davemloft.net>
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Tom Herbert authored
Add GRO support to forcedeth. Signed-off-by: Tom Herbert <therbert@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
Commit 4b0b72f7 ( net: speedup udp receive path ) introduced a bug in skb_free_datagram_locked(). We should not skb_orphan() skb if we dont have the guarantee we are the last skb user, this might happen with MSG_PEEK concurrent users. To keep socket locked for the smallest period of time, we split consume_skb() logic, inlined in skb_free_datagram_locked() Reported-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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- 03 May, 2010 11 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/vxy/lksctp-devDavid S. Miller authored
Add missing linux/vmalloc.h include to net/sctp/probe.c Signed-off-by: David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
Add hlist_for_each_entry_rcu_bh() and hlist_for_each_entry_continue_rcu_bh() macros, and use them in ipv6_get_ifaddr(), if6_get_first() and if6_get_next() to fix lockdeps warnings. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Reviewed-by: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
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David J. Choi authored
This is the first version of phy driver from Micrel Inc. Signed-off-by: David J. Choi <david.choi@micrel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Ilpo Järvinen authored
Worse yet, it seems that its arguments were in reverse order. Also remove one related helper which seems hardly worth keeping. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
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Peter Korsgaard authored
Use correct bit positions in DM_SHARED_CTRL register for writes. Michael Planes recently encountered a 'KY-RS9600 USB-LAN converter', which came with a driver CD containing a Linux driver. This driver turns out to be a copy of dm9601.c with symbols renamed and my copyright stripped. That aside, it did contain 1 functional change in dm_write_shared_word(), and after checking the datasheet the original value was indeed wrong (read versus write bits). On Michaels HW, this change bumps receive speed from ~30KB/s to ~900KB/s. On other devices the difference is less spectacular, but still significant (~30%). Reported-by: Michael Planes <michael.planes@free.fr> CC: stable@kernel.org Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
This reverts commit d5ffd75a. As requested by Jeff Kircher. Signed-off-by: David S. Miller <davem@davemloft.net>
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Simon Arlott authored
Frequently when using PPPoE with an interface MTU greater than 1500, the skb is likely to be non-linear. If the skb needs to be passed to pppd then the skb data must be read correctly. The previous commit fixes an issue with accidentally sending skbs to pppd based on an invalid read of the protocol type. When that error occurred pppd was reading invalid skb data too. Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Signed-off-by: David S. Miller <davem@davemloft.net>
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Simon Arlott authored
In ppp_input(), PPP_PROTO(skb) may refer to invalid data in the skb. If this happens and (proto >= 0xc000 || proto == PPP_CCPFRAG) then the packet is passed directly to pppd. This occurs frequently when using PPPoE with an interface MTU greater than 1500 because the skb is more likely to be non-linear. The next 2 bytes need to be pulled in ppp_input(). The pull of 2 bytes in ppp_receive_frame() has been removed as it is no longer required. Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Signed-off-by: David S. Miller <davem@davemloft.net>
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John W. Linville authored
Looks like we missed removing the return statement in the non-CONFIG_IWM_DEBUG dummy implementation of iwm_debugfs_init... Signed-off-by: John W. Linville <linville@tuxdriver.com>
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