- 19 Mar, 2012 32 commits
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Jeff Kirsher authored
Resolve namespace issues when FCoE or DCB is not enabled. The issue is with certain configurations we end up with namespace problems. A simple example: ixgbe_main.c - defines func A() - uses func A() ixgbe_fcoe.c - uses func A() ixgbe.h - has prototype for func A() For default (FCoE included) all is good. But when it isn't the namespace checker complains about how func A() could be static. To resolve this, created a ixgbe_lib file to contain functions used by DCB/FCoE and their helper functions so that they are always in namespace whether or not DCB/FCoE is enabled. Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
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Joe Perches authored
Just neatening. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Joe Perches authored
Remove an unnecessary #define and use memcpy instead of a loop to copy an ethernet address. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Joe Perches authored
No need for yet another #define for this. Convert NODE_ADDRESS_SIZE use to ETH_ALEN and remove #define. Use memcpy instead of a loop to copy an address. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Joe Perches authored
Just use ETH_ALEN. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
With increasing receive window sizes, but speed of light not improved that much, out of order queue can contain a huge number of skbs, waiting to be moved to receive_queue when missing packets can fill the holes. Some devices happen to use fat skbs (truesize of 4096 + sizeof(struct sk_buff)) to store regular (MTU <= 1500) frames. This makes highly probable sk_rmem_alloc hits sk_rcvbuf limit, which can be 4Mbytes in many cases. When limit is hit, tcp stack calls tcp_collapse_ofo_queue(), a true latency killer and cpu cache blower. Doing the coalescing attempt each time we add a frame in ofo queue permits to keep memory use tight and in many cases avoid the tcp_collapse() thing later. Tested on various wireless setups (b43, ath9k, ...) known to use big skb truesize, this patch removed the "packets collapsed in receive queue due to low socket buffer" I had before. This also reduced average memory used by tcp sockets. With help from Neal Cardwell. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Yuchung Cheng <ycheng@google.com> Cc: H.K. Jerry Chu <hkchu@google.com> Cc: Tom Herbert <therbert@google.com> Cc: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Acked-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
Split tcp_data_queue() in two parts for better readability. tcp_data_queue_ofo() is responsible for queueing incoming skb into out of order queue. Change code layout so that the skb_set_owner_r() is performed only if skb is not dropped. This is a preliminary patch before "reduce out_of_order memory use" following patch. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Yuchung Cheng <ycheng@google.com> Cc: H.K. Jerry Chu <hkchu@google.com> Cc: Tom Herbert <therbert@google.com> Cc: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Acked-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Dmitry Kravkov authored
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Yuval Mintz authored
Previously applied patch making the bnx2x statistics consistent did not apply to old FWs. This remedies it, extending the consistent behaviour to all drivers. Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Reported-by: Michal Schmidt <mschmidt@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Dmitry Kravkov authored
This includes changes in macros to better distinguish between the two protocols, and slightly changed the way their macs are set. Notice this file contains string print lines with more than 80 characters, as to not break prints. Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Dmitry Kravkov authored
The new error flags are supported by the bnx2x FW. Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Dmitry Kravkov authored
The changes were mostly made to enable back-to-back data flow with dcb. Other changes were simply deemed as a better 'clean' initial configuration. Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Yuval Mintz authored
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Yuval Mintz authored
This patch reduces sparse warnings in the bnx2x code, mostly by changing functions into static and changing initialization of structures. Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Merav Sicron authored
We've revised driver prints, changing the mask of existing prints to allow better control over the debug messages, added prints to error scenarios, removed unnecessary prints and corrected some spelling. Please note that this patch contains lines with over 80 characters, as string messages were kept in a single line. Signed-off-by: Merav Sicron <meravs@broadcom.com> Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Yuval Mintz authored
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Ajit Khaparde authored
Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Ajit Khaparde authored
In flex10 mode the number of vlan slots supported is halved. Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Ajit Khaparde authored
Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Ajit Khaparde authored
Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Alexander Duyck authored
This patch replaces the variable name data with the variable name features for ixgbe_fix_features and ixgbe_set_features. This helps to make some issues more obvious such as the fact that we were disabling Rx VLAN tag stripping when we should have been forcing it to be enabled when DCB is enabled. In addition there was deprecated code present that was disabling the LRO flag if we had the itr value set too low. I have updated this logic so that we will now allow the LRO flag to be set, but will not enable RSC until the rx-usecs value is high enough to allow enough time for Rx packet coalescing. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Stephen Ko <stephen.s.ko@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Alexander Duyck authored
This patch adds support for enabling or disabling UDP RSS via the ethtool -N rx-flow-hash command. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Stephen Ko <stephen.s.ko@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Alexander Duyck authored
This patch contains several fixes for formatting in regards to whitespace. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Alexander Duyck authored
This change fixes two minor issues. The first was the fact that we were setting the return value to false twice in the set_rss_queues function. The second is the fact that we should have been using "min_t(int," instead of "min((int)" in set_fdir_queues. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Stephen Ko <stephen.s.ko@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Alexander Duyck authored
The err_eeprom and err_sw_init tags both go to the same location. So instead of maintaining two tags this patch combines them so we only use err_sw_init. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Stephen Ko <stephen.s.ko@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Alexander Duyck authored
This change relocates the ixgbe_poll routine so it is right next to the interrupt routine that schedules and calls it. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Stephen Ko <stephen.s.ko@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Alexander Duyck authored
This change just cleans up some of the logic in the service_timer function so that we can avoid unnecessary swapping of the ready value between true to false and back to true. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Alexander Duyck authored
This change makes it so that only the 2nd cache line in the ring structure should see frequent updates. The advantage to this is that it should reduce the amount of cross CPU cache bouncing since only the 2nd cache line will be changing between most network transactions. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Stephen Ko <stephen.s.ko@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Alexander Duyck authored
This change makes it so that we store the tx_flags and protocol information to the tx_buffer_info structure sooner. This allows us to avoid unnecessary read/write transactions since we are placing the data in the final location earlier. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Stephen Ko <stephen.s.ko@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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- 18 Mar, 2012 4 commits
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Linus Torvalds authored
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Paul Gortmaker authored
The __netif_subqueue_stopped() just does the following: struct netdev_queue *txq = netdev_get_tx_queue(dev, queue_index); return netif_tx_queue_stopped(txq); and since we already have the txq in scope, we can just call that directly in this case. Suggested-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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Jason Baron authored
Commit 28d82dc1 ("epoll: limit paths") that I did to limit the number of possible wakeup paths in epoll is causing a few applications to longer work (dovecot for one). The original patch is really about limiting the amount of epoll nesting (since epoll fds can be attached to other fds). Thus, we probably can allow an unlimited number of paths of depth 1. My current patch limits it at 1000. And enforce the limits on paths that have a greater depth. This is captured in: https://bugzilla.redhat.com/show_bug.cgi?id=681578Signed-off-by: Jason Baron <jbaron@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds authored
Pull networking changes from David Miller: "1) icmp6_dst_alloc() returns NULL instead of ERR_PTR() leading to crashes, particularly during shutdown. Reported by Dave Jones and fixed by Eric Dumazet. 2) hyperv and wimax/i2400m return NETDEV_TX_BUSY when they have already freed the SKB, which causes crashes as to the caller this means requeue the packet. Fixes from Eric Dumazet. 3) usbnet driver doesn't allocate the right amount of headroom on fresh RX SKBs, fix from Eric Dumazet. 4) Fix regression in ip6_mc_find_dev_rcu(), as an RCU lookup it abolutely should not take a reference to 'dev', this leads to leaks. Fix from RonQing Li. 5) Fix netfilter ctnetlink race between delete and timeout expiration. From Pablo Neira Ayuso. 6) Revert SFQ change which causes regressions, specifically queueing to tail can lead to unavoidable flow starvation. From Eric Dumazet. 7) Fix a memory leak and a crash on corrupt firmware files in bnx2x, from Michal Schmidt." * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: netfilter: ctnetlink: fix race between delete and timeout expiration ipv6: Don't dev_hold(dev) in ip6_mc_find_dev_rcu. wimax/i2400m: fix erroneous NETDEV_TX_BUSY use net/hyperv: fix erroneous NETDEV_TX_BUSY use net/usbnet: reserve headroom on rx skbs bnx2x: fix memory leak in bnx2x_init_firmware() bnx2x: fix a crash on corrupt firmware file sch_sfq: revert dont put new flow at the end of flows ipv6: fix icmp6_dst_alloc()
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- 17 Mar, 2012 4 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull perf fixes from Ingo Molnar. * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf tools, x86: Build perf on older user-space as well perf tools: Use scnprintf where applicable perf tools: Incorrect use of snprintf results in SEGV
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Pablo Neira Ayuso authored
Kerin Millar reported hardlockups while running `conntrackd -c' in a busy firewall. That system (with several processors) was acting as backup in a primary-backup setup. After several tries, I found a race condition between the deletion operation of ctnetlink and timeout expiration. This patch fixes this problem. Tested-by: Kerin Millar <kerframil@gmail.com> Reported-by: Kerin Millar <kerframil@gmail.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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Alexander Duyck authored
This change makes it so that we always write the DMA address for the skb itself on the same tx_buffer struct that the skb is written on. This way we don't need the MAPPED_AS_PAGE flag and we always know it will be the first DMA value that we will have to unmap. In addition I have found an issue in which we were leaking a DMA mapping if the value happened to be 0 which is possible on some platforms. In order to resolve that I have updated the transmit path to use the length instead of the DMA mapping in order to determine if a mapping is actually present. One other tweak in this patch is that it only writes the olinfo information on the first descriptor. As it turns out it isn't necessary to write it for anything but the first descriptor so there is no need to carry it forward. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Stephen Ko <stephen.s.ko@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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