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* make TLLAO option for NA packets configurableOctavian Purdila2009-10-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On Friday 02 October 2009 20:53:51 you wrote: > This is good although I would have shortened the name. Ah, I knew I forgot something :) Here is v4. tavi >From 24d96d825b9fa832b22878cc6c990d5711968734 Mon Sep 17 00:00:00 2001 From: Octavian Purdila <opurdila@ixiacom.com> Date: Fri, 2 Oct 2009 00:51:15 +0300 Subject: [PATCH] ipv6: new sysctl for sending TLLAO with unicast NAs Neighbor advertisements responding to unicast neighbor solicitations did not include the target link-layer address option. This patch adds a new sysctl option (disabled by default) which controls whether this option should be sent even with unicast NAs. The need for this arose because certain routers expect the TLLAO in some situations even as a response to unicast NS packets. Moreover, RFC 2461 recommends sending this to avoid a race condition (section 4.4, Target link-layer address) Signed-off-by: Cosmin Ratiu <cratiu@ixiacom.com> Signed-off-by: Octavian Purdila <opurdila@ixiacom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Use sk_mark for IPv6 routing lookupsBrian Haley2009-10-07
| | | | | | | | | | | | | | | | Atis Elsts wrote: > Not sure if there is need to fill the mark from skb in tunnel xmit functions. In any case, it's not done for GRE or IPIP tunnels at the moment. Ok, I'll just drop that part, I'm not sure what should be done in this case. > Also, in this patch you are doing that for SIT (v6-in-v4) tunnels only, and not doing it for v4-in-v6 or v6-in-v6 tunnels. Any reason for that? I just sent that patch out too quickly, here's a better one with the updates. Add support for IPv6 route lookups using sk_mark. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ethtool: Add reset operationBen Hutchings2009-10-07
| | | | | | | | | | | | | | | | After updating firmware stored in flash, users may wish to reset the relevant hardware and start the new firmware immediately. This should not be completely automatic as it may be disruptive. A selective reset may also be useful for debugging or diagnostics. This adds a separate reset operation which takes flags indicating the components to be reset. Drivers are allowed to reset only a subset of those requested, and must indicate the actual subset. This allows the use of generic component masks and some future expansion. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* pkt_sched: gen_estimator: Dont report fake rate estimatorsEric Dumazet2009-10-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Jarek Poplawski a écrit : > > > Hmm... So you made me to do some "real" work here, and guess what?: > there is one serious checkpatch warning! ;-) Plus, this new parameter > should be added to the function description. Otherwise: > Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> > > Thanks, > Jarek P. > > PS: I guess full "Don't" would show we really mean it... Okay :) Here is the last round, before the night ! Thanks again [RFC] pkt_sched: gen_estimator: Don't report fake rate estimators We currently send TCA_STATS_RATE_EST elements to netlink users, even if no estimator is running. # tc -s -d qdisc qdisc pfifo_fast 0: dev eth0 root bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1 Sent 112833764978 bytes 1495081739 pkt (dropped 0, overlimits 0 requeues 0) rate 0bit 0pps backlog 0b 0p requeues 0 User has no way to tell if the "rate 0bit 0pps" is a real estimation, or a fake one (because no estimator is active) After this patch, tc command output is : $ tc -s -d qdisc qdisc pfifo_fast 0: dev eth0 root bands 3 priomap 1 2 2 2 1 2 0 0 1 1 1 1 1 1 1 1 Sent 561075 bytes 1196 pkt (dropped 0, overlimits 0 requeues 0) backlog 0b 0p requeues 0 We add a parameter to gnet_stats_copy_rate_est() function so that it can use gen_estimator_active(bstats, r), as suggested by Jarek. This parameter can be NULL if check is not necessary, (htb for example has a mandatory rate estimator) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* net/ppp: fix comments - ppp_{sync,asynctty}_receive() may sleepTilman Schmidt2009-10-07
| | | | | | | | | | The receive_buf methods of the N_PPP and N_SYNC_PPP line disciplines, ppp_asynctty_receive() and ppp_sync_receive(), call tty_unthrottle() which may sleep. Fix the comments claiming otherwise. Impact: documentation Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: introduce primary_reselect optionJiri Pirko2009-10-07
| | | | | | | | | | | | | | | | In some cases there is not desirable to switch back to primary interface when it's link recovers and rather stay with currently active one. We need to avoid packetloss as much as we can in some cases. This is solved by introducing primary_reselect option. Note that enslaved primary slave is set as current active no matter what. Patch modified by Jay Vosburgh as follows: fixed bug in action after change of option setting via sysfs, revised the documentation update, and bumped the bonding version number. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Use sk_mark for routing lookup in more placesEric Dumazet2009-10-07
| | | | | | | | | | | | Here is a followup on this area, thanks. [RFC] af_packet: fill skb->mark at xmit skb->mark may be used by classifiers, so fill it in case user set a SO_MARK option on socket. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6 sit: 6rd (IPv6 Rapid Deployment) Support.YOSHIFUJI Hideaki / 吉藤英明2009-10-07
| | | | | | | | | | | | | | | | | | | | IPv6 Rapid Deployment (6rd; draft-ietf-softwire-ipv6-6rd) builds upon mechanisms of 6to4 (RFC3056) to enable a service provider to rapidly deploy IPv6 unicast service to IPv4 sites to which it provides customer premise equipment. Like 6to4, it utilizes stateless IPv6 in IPv4 encapsulation in order to transit IPv4-only network infrastructure. Unlike 6to4, a 6rd service provider uses an IPv6 prefix of its own in place of the fixed 6to4 prefix. With this option enabled, the SIT driver offers 6rd functionality by providing additional ioctl API to configure the IPv6 Prefix for in stead of static 2002::/16 for 6to4. Original patch was done by Alexandre Cassen <acassen@freebox.fr> based on old Internet-Draft. Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* add vif using local interface index instead of IPIlia K2009-10-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When routing daemon wants to enable forwarding of multicast traffic it performs something like: struct vifctl vc = { .vifc_vifi = 1, .vifc_flags = 0, .vifc_threshold = 1, .vifc_rate_limit = 0, .vifc_lcl_addr = ip, /* <--- ip address of physical interface, e.g. eth0 */ .vifc_rmt_addr.s_addr = htonl(INADDR_ANY), }; setsockopt(fd, IPPROTO_IP, MRT_ADD_VIF, &vc, sizeof(vc)); This leads (in the kernel) to calling vif_add() function call which search the (physical) device using assigned IP address: dev = ip_dev_find(net, vifc->vifc_lcl_addr.s_addr); The current API (struct vifctl) does not allow to specify an interface other way than using it's IP, and if there are more than a single interface with specified IP only the first one will be found. The attached patch (against 2.6.30.4) allows to specify an interface by its index, instead of IP address: struct vifctl vc = { .vifc_vifi = 1, .vifc_flags = VIFF_USE_IFINDEX, /* NEW */ .vifc_threshold = 1, .vifc_rate_limit = 0, .vifc_lcl_ifindex = if_nametoindex("eth0"), /* NEW */ .vifc_rmt_addr.s_addr = htonl(INADDR_ANY), }; setsockopt(fd, IPPROTO_IP, MRT_ADD_VIF, &vc, sizeof(vc)); Signed-off-by: Ilia K. <mail4ilia@gmail.com> === modified file 'include/linux/mroute.h' Signed-off-by: David S. Miller <davem@davemloft.net>
* gigaset: add Kernel CAPI interface (v3)Tilman Schmidt2009-10-07
| | | | | | | | Add a Kernel CAPI interface to the Gigaset driver. Impact: optional new functionality Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
* gigaset: allow building without I4LTilman Schmidt2009-10-07
| | | | | | | | | Add a dummy LL interface to the Gigaset driver so that it can be built and, in a limited way, used without the ISDN4Linux subsystem. Impact: new configuration alternative Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
* gigaset: prepare for CAPI implementationTilman Schmidt2009-10-07
| | | | | | | | | | Reorganize the code of the Gigaset driver, moving all isdn4linux dependencies to the source file i4l.c so that it can be replaced by a file capi.c interfacing to Kernel CAPI instead. Impact: refactoring, no functional change Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'master' of ↵David S. Miller2009-10-07
|\ | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
| * gigaset: add kerneldoc commentsTilman Schmidt2009-10-07
| | | | | | | | | | | | | | | | Add kerneldoc comments to some functions in the Gigaset driver. Impact: documentation Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
| * gigaset: correct debugging output selectionTilman Schmidt2009-10-07
| | | | | | | | | | | | | | | | | | Dump payload data consistently only when DEBUG_STREAM_DUMP debug bit is set. Impact: debugging aid Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
| * gigaset: improve error recoveryTilman Schmidt2009-10-07
| | | | | | | | | | | | | | | | | | When the Gigaset base stops responding, try resetting the USB connection to recover. Impact: error handling improvement Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
| * gigaset: fix device ERROR response handlingTilman Schmidt2009-10-07
| | | | | | | | | | | | | | | | | | | | | | Clear out pending command that got rejected with 'ERROR' response. This fixes the bug where unloading the driver module would hang with the message: "gigaset: not searching scheduled commands: busy" after a device communication error. Impact: error handling bugfix Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
| * gigaset: announce if built with debuggingTilman Schmidt2009-10-07
| | | | | | | | | | | | | | | | | | Mention in the driver load announcement whether the driver was built with debugging messages enabled, to facilitate support. Impact: informational message Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
| * gigaset: handle isoc frame errors more gracefullyTilman Schmidt2009-10-07
| | | | | | | | | | | | | | | | Don't drop the remainder of an URB if an isochronous frame has an error. Impact: error handling improvement Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
| * gigaset: linearize skbTilman Schmidt2009-10-07
| | | | | | | | | | | | | | | | | | | | | | The code of the Gigaset driver assumes that sk_buff-s coming from the ISDN4Linux subsystem are always linear. Explicitly calling skb_linearize() is cheap if they are, but much more robust in case they ever aren't. Impact: robustness improvement Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
| * gigaset: fix reject/hangup handlingTilman Schmidt2009-10-07
| | | | | | | | | | | | | | | | | | | | Signal D channel disconnect in a few cases where it was missed, including when an incoming call is disconnected before it was accepted. Impact: error handling improvement Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
| * isdn: make capidrv module parameter "debugmode" writeableTilman Schmidt2009-10-07
| | | | | | | | | | | | | | | | Being able to change the debugmode module parameter of capidrv on the fly is quite useful for debugging and doesn't do any harm. Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
| * isdn: avoid races in capidrvTilman Schmidt2009-10-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | In several places, capidrv sends a CAPI message to the ISDN device and then updates its internal state accordingly. If the response message from the device arrives before the state is updated, it may be rejected or processed incorrectly. Avoid these races by updating the state before emitting the message. Impact: bugfix Signed-off-by: Tilman Schmidt <tilman@imap.cc> Acked-by: Karsten Keil <keil@b1-systems.de> Signed-off-by: David S. Miller <davem@davemloft.net>
| * isdn: accept CAPI Informational Info values as successTilman Schmidt2009-10-07
| | | | | | | | | | | | | | | | | | | | | | | | Info values in the 0x00xx range are defined in the CAPI standard as "Informational, message processed successfully". Therefore a CONNECT_B3_CONF message with an Info value in that range should open an NCCI just as with Info==0. Impact: minor bugfix Signed-off-by: Tilman Schmidt <tilman@imap.cc> Acked-by: Karsten Keil <keil@b1-systems.de> Signed-off-by: David S. Miller <davem@davemloft.net>
| * Documentation: expand isdn/INTERFACE.CAPI documentTilman Schmidt2009-10-07
| | | | | | | | | | | | | | | | | | | | | | - Note that send_message() may be called in interrupt context. - Describe the storage of CAPI messages and payload data in SKBs. - Add more details to the description of the _cmsg structure. - Describe kernelcapi debugging output. Impact: documentation Signed-off-by: Tilman Schmidt <tilman@imap.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
| * be2net: Bug fix to properly update ethtool tx-checksumming after ethtool -K ↵Ajit Khaparde2009-10-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | <ifname> tx off This is a fix for a bug which was a result of wrong use of checksum offload flag. The status of tx-checksumming was not changed from on to off after a 'ethtool -K <ifname> tx off' operation. Use the proper checksum offload flag NETIF_F_HW_CSUM instead of NETIF_F_IP_CSUM and NETIF_F_IPV6_CSUM. Patch is against net-2.6 tree. Signed-off-by: Ajit Khaparde <ajitk@serverengines.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * be2net: Fix a typo in be_cmds.hAjit Khaparde2009-10-06
| | | | | | | | | | | | | | | | MCC_STATUS_NOT_SUPPORTED should be decimal 66 not hex 66. This patch fixes this typo. Patch against net-2.6 tree. Signed-off-by: Ajit Khaparde <ajitk@serverengines.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * be2net: Bug Fix while accounting of multicast frames during netdev stats updateAjit Khaparde2009-10-06
| | | | | | | | | | | | | | | | | | While updating the statistics to be passed via the get_stats, tx multicast frames were being accounted instead of rx multicast frames. This patch fixes the bug. This patch is against the net-2.6 tree. Signed-off-by: Ajit Khaparde <ajitk@serverengines.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * qlge: Fix lock/mutex warnings.Ron Mercer2009-10-06
| | | | | | | | | | | | | | | | | | | | Get rid of spinlock and private mutex usage for exclusive access to the HW semaphore register. rtnl_lock already creates exclusive access to this register in all driver API. Add rtnl to firmware worker threads that also use the HW semaphore register. Signed-off-by: Ron Mercer <ron.mercer@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * qlge: Fix queueing of firmware handler in ISR.Ron Mercer2009-10-06
| | | | | | | | | | | | | | | | | | Check that we are not already polling firmware events before we queue the firmware event worker, then disable firmware interrupts. Otherwise we can queue the same event multiple times. Signed-off-by: Ron Mercer <ron.mercer@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * qlge: Fix some bit definitions for reset register.Ron Mercer2009-10-06
| | | | | | | | | | Signed-off-by: Ron Mercer <ron.mercer@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * connector: Fix incompatible pointer type warningStephen Boyd2009-10-06
| | | | | | | | | | | | | | | | | | | | | | | | | | Commit 7069331 (connector: Provide the sender's credentials to the callback, 2009-10-02) changed callbacks to take two arguments but missed this one. drivers/connector/cn_proc.c: In function ‘cn_proc_init’: drivers/connector/cn_proc.c:263: warning: passing argument 3 of ‘cn_add_callback’ from incompatible pointer type Signed-off-by: Stephen Boyd <bebarino@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * wext: let get_wireless_stats() sleepJohannes Berg2009-10-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A number of drivers (recently including cfg80211-based ones) assume that all wireless handlers, including statistics, can sleep and they often also implicitly assume that the rtnl is held around their invocation. This is almost always true now except when reading from sysfs: BUG: sleeping function called from invalid context at kernel/mutex.c:280 in_atomic(): 1, irqs_disabled(): 0, pid: 10450, name: head 2 locks held by head/10450: #0: (&buffer->mutex){+.+.+.}, at: [<c10ceb99>] sysfs_read_file+0x24/0xf4 #1: (dev_base_lock){++.?..}, at: [<c12844ee>] wireless_show+0x1a/0x4c Pid: 10450, comm: head Not tainted 2.6.32-rc3 #1 Call Trace: [<c102301c>] __might_sleep+0xf0/0xf7 [<c1324355>] mutex_lock_nested+0x1a/0x33 [<f8cea53b>] wdev_lock+0xd/0xf [cfg80211] [<f8cea58f>] cfg80211_wireless_stats+0x45/0x12d [cfg80211] [<c13118d6>] get_wireless_stats+0x16/0x1c [<c12844fe>] wireless_show+0x2a/0x4c Fix this by using the rtnl instead of dev_base_lock. Reported-by: Miles Lane <miles.lane@gmail.com> Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * be2net: Fix a bug in preparation of mcc wrb which was causing flash ↵Ajit Khaparde2009-10-05
| | | | | | | | | | | | | | | | | | | | | | operation to fail This patch fixes a bug that got introduced in commit 76998bc7. During preparation of mcc wrb, req was being wrongly overwritten and the flash operation was failing. Signed-off-by: Ajit Khaparde <ajitk@serverengines.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * pcnet_cs: add cis of National Semicondoctor's multifunction pcmcia cardKen Kawasaki2009-10-05
| | | | | | | | | | | | | | | | | | | | | | pcnet_cs,serial_cs: add cis of National Semicondoctor's lan&modem mulitifunction pcmcia card, NE2K, tamarack ethernet card, and some serial card(COMpad2, COMpad4). Signed-off-by: Ken Kawasaki <ken_kawasaki@spring.nifty.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
| * net: Support inclusion of <linux/socket.h> before <sys/socket.h>Ben Hutchings2009-10-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following user-space program fails to compile: #include <linux/socket.h> #include <sys/socket.h> int main() { return 0; } The reason is that <linux/socket.h> tests __GLIBC__ to decide whether it should define various structures and macros that are now defined for user-space by <sys/socket.h>, but __GLIBC__ is not defined if no libc headers have yet been included. It seems safe to drop support for libc 5 now. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Bastian Blank <waldi@debian.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * pktgen: restore nanosec delaysEric Dumazet2009-10-05
| | | | | | | | | | | | | | | | Commit fd29cf72 (pktgen: convert to use ktime_t) inadvertantly converted "delay" parameter from nanosec to microsec. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * pktgen: Fix multiqueue handlingEric Dumazet2009-10-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is not currently possible to instruct pktgen to use one selected tx queue. When Robert added multiqueue support in commit 45b270f8, he added an interval (queue_map_min, queue_map_max), and his code doesnt take into account the case of min = max, to select one tx queue exactly. I suspect a high performance setup on a eight txqueue device wants to use exactly eight cpus, and assign one tx queue to each sender. This patchs makes pktgen select the right tx queue, not the first one. Also updates Documentation to reflect Robert changes. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Robert Olsson <robert.olsson@its.uu.se> Signed-off-by: David S. Miller <davem@davemloft.net>
| * e1000e: swap max hw supported frame size between 82574 and 82583Alexander Duyck2009-10-05
| | | | | | | | | | | | | | | | | | | | | | | | There appears to have been a mixup in the max supported jumbo frame size between 82574 and 82583 which ended up disabling jumbo frames on the 82574 as a result. This patch swaps the two so that this issue is resolved. This patch fixes http://bugzilla.kernel.org/show_bug.cgi?id=14261 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>
| * ixgbe: add support for 82599 based X520 10G Dual KX4 Mezz cardDon Skidmore2009-10-05
| | | | | | | | | | | | | | | | | | | | This patch adds device support for the 82599 based X520 10GbE Dual Port KX4 Mezzanine card. Signed-off-by: Don Skidmore<donald.c.skidmore@intel.com> Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
| * ixgbe: add support for 82599 Combined BackplaneDon Skidmore2009-10-05
| | | | | | | | | | | | | | | | | | | | | | | | This patch will add support for the 82599 Dual port Backplane device (0x10f8). This device has the ability to link in serial (KR) and parallel (KX4/KX) modes, depending on what the switch capabilities are in the blade chassis. Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com> Acked-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: speedup sk_wake_async()Eric Dumazet2009-10-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | An incoming datagram must bring into cpu cache *lot* of cache lines, in particular : (other parts omitted (hash chains, ip route cache...)) On 32bit arches : offsetof(struct sock, sk_rcvbuf) =0x30 (read) offsetof(struct sock, sk_lock) =0x34 (rw) offsetof(struct sock, sk_sleep) =0x50 (read) offsetof(struct sock, sk_rmem_alloc) =0x64 (rw) offsetof(struct sock, sk_receive_queue)=0x74 (rw) offsetof(struct sock, sk_forward_alloc)=0x98 (rw) offsetof(struct sock, sk_callback_lock)=0xcc (rw) offsetof(struct sock, sk_drops) =0xd8 (read if we add dropcount support, rw if frame dropped) offsetof(struct sock, sk_filter) =0xf8 (read) offsetof(struct sock, sk_socket) =0x138 (read) offsetof(struct sock, sk_data_ready) =0x15c (read) We can avoid sk->sk_socket and socket->fasync_list referencing on sockets with no fasync() structures. (socket->fasync_list ptr is probably already in cache because it shares a cache line with socket->wait, ie location pointed by sk->sk_sleep) This avoids one cache line load per incoming packet for common cases (no fasync()) We can leave (or even move in a future patch) sk->sk_socket in a cold location Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | vxge: Version update.Sreenivasa Honnur2009-10-06
| | | | | | | | | | | | | | - Version Update. Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | vxge: Allow multiple functions with INTA.Sreenivasa Honnur2009-10-06
| | | | | | | | | | | | | | | | | | | | - Allow multiple functions with INTA. - Removed the condition to allow only one vpath with INTA - Ensure that the alarm bit in titan_mask_all_int register is cleared when driver exits. Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | vxge: Check if FCS stripping is disabled by the firmware.Sreenivasa Honnur2009-10-06
| | | | | | | | | | | | | | | | | | | | | | | | | | - Added a function to check if FCS stripping is disabled by the firmware, if it is not disabled fail driver load. - By default FCS stripping is disabled by the firmware. With this assumption driver decrements the indicated packet length by 4 bytes(FCS length). - This patch ensures that FCS stripping is disabled during driver load time. Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | vxge: Removed unused functions.Sreenivasa Honnur2009-10-06
| | | | | | | | | | | | | | | | | | - Removed the wrr_rebalance function - This feature is not supported by the ASIC, hence removing the related code. Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | vxge: Fixed crash in PAE system due to wrong typecasting.Sreenivasa Honnur2009-10-06
| | | | | | | | | | | | | | | | | | | | - Fix a crash in PAE system due to wrong typecasting. - On PAE system size_t is unsigned int which is 32bit. Avoid casting 64 bit address to 32 bit Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | vxge: Removed accessing non-supported registers.Sreenivasa Honnur2009-10-06
| | | | | | | | | | | | | | | | | | | | - Removed accessing GENDMA_INT register - This allowed the firmware to perform a generic DMA write to host memory. This feature is not supported by the ASIC, this patch removes access to GENDMA_INT register. Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | vxge: Update driver_config->vpath_per_dev for each function in probe.Sreenivasa Honnur2009-10-06
| | | | | | | | | | | | | | | | | | | | | | - Update driver_config->vpath_per_dev for each function in probe. - vpath_per_device specifies number of vpaths supported for each function/device. The current code was updating vpath_per_device only for physical device, however this has to be updated for each function also in case of a MF(Multi function) device. Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | vxge: Modify __vxge_hw_device_is_privilaged() to not assume function-0 as ↵Sreenivasa Honnur2009-10-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | the privileged function: Resubmit#1 - vxge driver was assuming function-0 is always the privilaged function. Now that restriction has been removed any function can act as a privilaged function. - This patch modifies the __vxge_hw_device_is_privilaged routine to not assume function-0 as the privileged function. - Recreated the patch by incorporating review comments from Dave Miller to remove double slash in path names. Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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