Re: Fw: [Bug 106241] New: shutdown(3)/close(3) behaviour is incorrect for sockets in accept(3)

On Wed, 2015-10-21 at 14:03 +0100, Alan Burlison wrote: > On 21/10/2015 12:28, Eric Dumazet wrote: > > > This works for me. Please double check your programs > > I have just done so, it works as you say for AF_INET sockets but if you > switch to AF_UNIX sockets it does the wrong thing in the

Re: [PATCH V5 1/1] bpf: control events stored in PERF_EVENT_ARRAY maps trace data output when perf sampling

On Wed, Oct 21, 2015 at 10:01:46PM +0800, pi3orama wrote: > > 在 2015年10月21日，下午9:49，Peter Zijlstra 写道： > > > >> On Wed, Oct 21, 2015 at 09:42:12PM +0800, Wangnan (F) wrote: > >> How can an eBPF program access a !local event: > >> > >> when creating perf event array we don't

Re: [RFC PATCH 5/5] openvswitch: Interface with NAT.

Thomas Graf wrote: > On 10/21/15 at 11:34am, Florian Westphal wrote: > > Jarno Rajahalme wrote: > > > #define OVS_CS_F_REPLY_DIR 0x08 /* Flow is in the reply > > > direction. */ > > > #define OVS_CS_F_INVALID 0x10 /* Could not track

Re: [PATCH net] net: try harder to not reuse ifindex when moving interfaces

From: Jiri Benc Date: Wed, 21 Oct 2015 16:46:13 +0200 > For example, we could always alloc a new ifindex when moving interfaces > between name spaces. That would be probably the tiniest race window we > could get to (still not zero!) but I guess it would break apps that >

Re: [PATCH V5 1/1] bpf: control events stored in PERF_EVENT_ARRAY maps trace data output when perf sampling

发自我的 iPhone > 在 2015年10月21日，下午9:49，Peter Zijlstra 写道： > >> On Wed, Oct 21, 2015 at 09:42:12PM +0800, Wangnan (F) wrote: >> How can an eBPF program access a !local event: >> >> when creating perf event array we don't care which perf event >> is for which CPU, so perf

Re: Fw: [Bug 106241] New: shutdown(3)/close(3) behaviour is incorrect for sockets in accept(3)

On 21/10/2015 04:49, Al Viro wrote: Firstly, thank you for the comprehensive and considered reply. Refcount is an implementation detail, of course. However, in any Unix I know of, there are two separate notions - descriptor losing connection to opened file (be it from close(), exit(),

Re: [PATCH v2 1/1] xen-netfront: update num_queues to real created

From: Joe Jin Date: Mon, 19 Oct 2015 13:37:17 +0800 > Sometimes xennet_create_queues() may failed to created all requested > queues, we need to update num_queues to real created to avoid NULL > pointer dereference. > > Signed-off-by: Joe Jin Applied. --

Re: [PATCH net-next 0/7] RACK loss detection

From: Yuchung Cheng Date: Fri, 16 Oct 2015 21:57:40 -0700 > RACK (Recent ACK) loss recovery uses the notion of time instead of > packet sequence (FACK) or counts (dupthresh). > > It's inspired by the FACK heuristic in tcp_mark_lost_retrans(): when a > limited transmit (new

Re: [PATCH V5 1/1] bpf: control events stored in PERF_EVENT_ARRAY maps trace data output when perf sampling

On 2015/10/21 20:17, Peter Zijlstra wrote: On Wed, Oct 21, 2015 at 07:49:34PM +0800, Wangnan (F) wrote: If our task is sampling cycle events during a function is running, and if two cores start that function overlap: Time: ...A Core 0: sys_write\

Re: [PATCH V5 1/1] bpf: control events stored in PERF_EVENT_ARRAY maps trace data output when perf sampling

On Wed, Oct 21, 2015 at 09:42:12PM +0800, Wangnan (F) wrote: > How can an eBPF program access a !local event: > > when creating perf event array we don't care which perf event > is for which CPU, so perf program can access any perf event in > that array. So what is stopping the eBPF thing from

[PATCH 00/15] Fix warnings reported by coccicheck

Fix various warning reported by coccicheck: make coccicheck M=drivers/net/wireless Punit Vara (15): net: wireless: ath: use | instead of + for summing bitmasks net: wireless: ath: Remove unnecessary semicolon net: wireless: ath: Remove unnecessary semicolon net: wireless: ipw2x00: use |

[PATCH 07/15] net: wireless: brcm80211: Remove duplicated arguments to |

Remove uncessary repeated arguments with OR(|) This is patch to the brcmsmac/channel.c file that removes following warning reported by coccicheck: -duplicated argument to & or | Signed-off-by: Punit Vara --- drivers/net/wireless/brcm80211/brcmsmac/channel.c | 1 - 1 file

[PATCH 05/15] net: wireless: ti: Return flow can be simplified for wl1271_cmd_interrogate

This patch is to the wlcore/acx.c file that fixes up warning reported by coccicheck: WARNING: end returns can be simplified if negative or 0 value Prefer direct return value instead of writing 2-3 more sentence. Signed-off-by: Punit Vara ---

Re: [Bug 106241] New: shutdown(3)/close(3) behaviour is incorrect for sockets in accept(3)

From: Alan Burlison Date: Wed, 21 Oct 2015 15:38:51 +0100 > While this algorithm is pretty expensive, it is not often invoked. I bet it can be easily intentionally invoked, by a malicious entity no less. -- To unsubscribe from this list: send the line "unsubscribe

Re: [PATCH net] net: try harder to not reuse ifindex when moving interfaces

On Wed, 21 Oct 2015 08:32:14 -0700 (PDT), David Miller wrote: > As you say the apps are broken, so file a bug and have them fixed. > > The assumption is clearly invalid, so apps cannot make such an > assumption. Does it mean you would be okay with a patch that always allocates and assigns a new

Re: [PATCH net] net: try harder to not reuse ifindex when moving interfaces

From: Jiri Benc Date: Fri, 16 Oct 2015 13:07:59 +0200 > This of course does not fix the reuse problem for the applications; > it just makes it less likely to be hit in common usage patterns. Not only does this not fix the problem, it makes the incentive to fix that problem

Re: [PATCH net 0/2] net: mv643xx_eth: TSO TX data corruption fixes

From: Philipp Kirchhofer Date: Sun, 18 Oct 2015 16:02:42 +0200 > as previously discussed [1] the mv643xx_eth driver has some > issues with data corruption when using TCP segmentation offload (TSO). > > The following patch set improves this situation by fixing two

Re: [PATCH v3] vsock: fix missing cleanup when misc_register failed

From: Gao feng Date: Sun, 18 Oct 2015 23:35:56 +0800 > reset transport and unlock if misc_register failed. > > Signed-off-by: Gao feng Applied. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to

Re: [PATCH nf-next 0/4] netfilter: rework netfilter ipv6 defrag

From: Florian Westphal Date: Sat, 17 Oct 2015 22:14:21 +0200 > [ CC netdev since patch #2 isn't nf-specific. Dave, if you want > I can resubmit that one after the next nf-pull request; let me know if > you would prefer that ]. No objections to you merging patch #2 however

Re: [PATCH net] net: try harder to not reuse ifindex when moving interfaces

On Wed, 21 Oct 2015 07:43:32 -0700 (PDT), David Miller wrote: > Fix the real problem, then come talk to us. I don't think the real problem is fixable, given that any kind of unique non-settable identifier would break CRIU. And anything settable will have the exact same problem. All we can do is

Re: [PATCH -next] net: hisilicon: Never build on SPARC

From: Guenter Roeck Date: Wed, 21 Oct 2015 07:29:33 -0700 > The Hisilicon network driver does not build for Sparc. Enabling > COMPILE_TEST for it causes Sparc allmodconfig/allyesconfig builds > to fail with > > drivers/net/ethernet/hisilicon/hns_mdio.c: In function

Re: [PATCH net-next 3/4] bpf: add support for persistent maps/progs

On 10/20/2015 08:56 PM, Eric W. Biederman wrote: ... Just FYI: Using a device for this kind of interface is pretty much a non-starter as that quickly gets you into situations where things do not work in containers. If someone gets a version of device namespaces past GregKH it might be up for

[PATCH -next] net: hisilicon: Never build on SPARC

The Hisilicon network driver does not build for Sparc. Enabling COMPILE_TEST for it causes Sparc allmodconfig/allyesconfig builds to fail with drivers/net/ethernet/hisilicon/hns_mdio.c: In function 'hns_mdio_bus_name': drivers/net/ethernet/hisilicon/hns_mdio.c:409:3: error:

Re: [PATCH nf-next 0/4] netfilter: rework netfilter ipv6 defrag

Pablo Neira Ayuso wrote: > > I can then wait for that change to pop up in nf-next and just resend > > this series (which will then undo that change). > > I'd rather get things fixes for the existing code. This would also > allow simple passing back to -stable, then we can

Re: [PATCH net-next] Adding switchdev ageing notification on port bridged

From: Elad Raz Date: Mon, 19 Oct 2015 15:37:25 +0300 > Configure ageing time to the HW for newly bridged device > > CC: Scott Feldman > CC: Jiri Pirko > Signed-off-by: Elad Raz Applied, thanks. -- To unsubscribe

[PATCH 08/15] net: wireless: simplify return flow for usb_control_msg

This patch is to the at76c50x-usb.c file that fixes up warning reported by coccicheck: WARNING: end returns can be simplified if negative or 0 value Prefer direct return value instead of writing 2-3 more sentence. Signed-off-by: Punit Vara ---

[PATCH 09/15] net: wireless: simplify return flow for zd1201_setconfig16

This patch is to the zd1201.c file that fixes up warning reported by coccicheck: WARNING: end returns can be simplified and declaration on line 1658 can be dropped Prefer direct return value instead of writing 2-3 more sentence. Signed-off-by: Punit Vara ---

Re: [PATCH 01/15] net: wireless: ath: use | instead of + for summing bitmasks

On 10/21/2015, 04:55 PM, Punit Vara wrote: > This patch is to the ath10k/pci.h file that fixes following warning > reported by coccicheck: > > WARNING: sum of probable bitmasks, consider | > > I have replaced + with OR operator | for summing bitmasks > > Signed-off-by: Punit Vara

[PATCH 06/15] net: wireless: rtwifi: Remove duplicated arguments to |

Remove uncessary repeated arguments COMP_EFUSE, COMP_REGD, COMP_CHAN with OR(|) This is patch to the debug.c file that removes following warning reported by coccicheck: -duplicated argument to & or | Signed-off-by: Punit Vara --- drivers/net/wireless/rtlwifi/debug.c | 6

[PATCH 12/15] net: wireless: brcm80211: Remove unneeded variable which return 0

This is patch to the brcmsmac/main.c that removes unnecessary variable which was declared to return zero. This patch fixes up warning reported by coccicheck: -Unneeded variable: "err". Return "0" on line 3788 Signed-off-by: Punit Vara ---

[PATCH 11/15] net: wireless: iwlegacy: Remove unneeded variable ret

This patch is to the 3945-mac.c file that fixes up following warning by coccicheck: drivers/net/wireless/iwlegacy/3945-mac.c:247:5-8: Unneeded variable: "ret". Return "- EOPNOTSUPP" on line 249 Return -EOPNOTSUPP directly instead of return using ret Signed-off-by: Punit Vara

Re: [PATCH 08/15] net: wireless: simplify return flow for usb_control_msg

On 10/21/2015, 04:55 PM, Punit Vara wrote: > @@ -544,13 +544,10 @@ static void at76_ledtrig_tx_activity(void) > static int at76_remap(struct usb_device *udev) > { > int ret; > - ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x0a, > + return usb_control_msg(udev,

Re: [PATCH -next] net: hisilicon: Never build on SPARC

Hi Arnd, On 10/21/2015 07:39 AM, Arnd Bergmann wrote: On Wednesday 21 October 2015 07:29:33 Guenter Roeck wrote: The Hisilicon network driver does not build for Sparc. Enabling COMPILE_TEST for it causes Sparc allmodconfig/allyesconfig builds to fail with

[PATCH 01/15] net: wireless: ath: use | instead of + for summing bitmasks

This patch is to the ath10k/pci.h file that fixes following warning reported by coccicheck: WARNING: sum of probable bitmasks, consider | I have replaced + with OR operator | for summing bitmasks Signed-off-by: Punit Vara --- drivers/net/wireless/ath/ath10k/pci.c | 10

[PATCH 02/15] net: wireless: ath: Remove unnecessary semicolon

This patch is to the htt_rx.c that removes unneeded semicolon which is reported by coccicheck. Here semicolon just create empty statement so please remote it. Signed-off-by: Punit Vara --- drivers/net/wireless/ath/ath10k/htt_rx.c | 2 +- 1 file changed, 1 insertion(+), 1

[PATCH 04/15] net: wireless: ipw2x00: use | instead of + for summing bitmasks

This patch is to the libipw_rx.c file that fixes following warning reported by coccicheck: WARNING: sum of probable bitmasks, consider | I have replaced + with OR operator | for summing bitmasks Signed-off-by: Punit Vara --- drivers/net/wireless/ipw2x00/libipw_rx.c | 4

[PATCH 03/15] net: wireless: ath: Remove unnecessary semicolon

This patch is to the ath10k/wmi.h that removes unneeded semicolon which is reported by coccicheck. Here semicolon just create empty statement so please remote it. Signed-off-by: Punit Vara --- drivers/net/wireless/ath/ath10k/wmi.h | 2 +- 1 file changed, 1 insertion(+), 1

pull-request: mac80211-next 2015-10-21

Hi, Here's another, likely final, pull request for -next. I finally caved in and cleaned up the regulatory code a bit, which is the bulk of the changes. There's a new Kconfig which allows turning off CRDA, but it's hidden behind having the internal regdb enabled, which in turn is hidden behind

Re: [PATCH V5 1/1] bpf: control events stored in PERF_EVENT_ARRAY maps trace data output when perf sampling

发自我的 iPhone > 在 2015年10月21日，下午10:09，Peter Zijlstra 写道： > > On Wed, Oct 21, 2015 at 10:01:46PM +0800, pi3orama wrote: >>> 在 2015年10月21日，下午9:49，Peter Zijlstra 写道： >>> On Wed, Oct 21, 2015 at 09:42:12PM +0800, Wangnan (F) wrote: How can an

[PATCH 1/8] mm: page_counter: let page_counter_try_charge() return bool

page_counter_try_charge() currently returns 0 on success and -ENOMEM on failure, which is surprising behavior given the function name. Make it follow the expected pattern of try_stuff() functions that return a boolean true to indicate success, or false for failure. Signed-off-by: Johannes Weiner

[PATCH 3/8] net: consolidate memcg socket buffer tracking and accounting

The tcp memory controller has extensive provisions for future memory accounting interfaces that won't materialize after all. Cut the code base down to what's actually used, now and in the likely future. - There won't be any different protocol counters in the future, so a direct sock->sk_memcg

[PATCH 2/8] mm: memcontrol: export root_mem_cgroup

A later patch will need this symbol in files other than memcontrol.c, so export it now and replace mem_cgroup_root_css at the same time. Signed-off-by: Johannes Weiner --- include/linux/memcontrol.h | 3 ++- mm/backing-dev.c | 2 +- mm/memcontrol.c| 5

[PATCH 8/8] mm: memcontrol: hook up vmpressure to socket pressure

Let the networking stack know when a memcg is under reclaim pressure, so it can shrink its transmit windows accordingly. Whenever the reclaim efficiency of a memcg's LRU lists drops low enough for a MEDIUM or HIGH vmpressure event to occur, assert a pressure state in the socket and tcp memory

[PATCH 6/8] mm: vmscan: simplify memcg vs. global shrinker invocation

Letting shrink_slab() handle the root_mem_cgroup, and implicitely the !CONFIG_MEMCG case, allows shrink_zone() to invoke the shrinkers unconditionally from within the memcg iteration loop. Signed-off-by: Johannes Weiner --- include/linux/memcontrol.h | 2 ++ mm/vmscan.c

[PATCH 7/8] mm: vmscan: report vmpressure at the level of reclaim activity

The vmpressure metric is based on reclaim efficiency, which in turn is an attribute of the LRU. However, vmpressure events are currently reported at the source of pressure rather than at the reclaim level. Switch the reporting to the reclaim level to allow finer-grained analysis of which memcg is

[PATCH 0/8] mm: memcontrol: account socket memory in unified hierarchy

Hi, this series adds socket buffer memory tracking and accounting to the unified hierarchy memory cgroup controller. [ Networking people, at this time please check the diffstat below to avoid going into convulsions. ] Socket buffer memory can make up a significant share of a workload's memory

[PATCH 4/8] mm: memcontrol: prepare for unified hierarchy socket accounting

The unified hierarchy memory controller will account socket memory. Move the infrastructure functions accordingly. Signed-off-by: Johannes Weiner --- mm/memcontrol.c | 136 1 file changed, 68 insertions(+), 68

[PATCH 1/2] can: xilinx: use readl/writel instead of ioread/iowrite

The driver only supports memory-mapped I/O [by ioremap()], so readl/writel is actually the right thing to do, IMO. During the validation of this driver or IP on ARM 64-bit processor while sending lot of packets observed that the tx packet drop with iowrite Putting the barriers for each tx fifo

[PATCH v6] can: xilinx: Convert to runtime_pm

Instead of enabling/disabling clocks at several locations in the driver, Use the runtime_pm framework. This consolidates the actions for runtime PM In the appropriate callbacks and makes the driver more readable and mantainable. Signed-off-by: Kedareswara rao Appana --- Sorry

Re: [Bug 106241] New: shutdown(3)/close(3) behaviour is incorrect for sockets in accept(3)

On 22/10/2015 02:29, David Miller wrote: From: Al Viro Date: Wed, 21 Oct 2015 19:51:04 +0100 Sure, but the upkeep of data structures it would need is there whether you actually end up triggering it or not. Both in memory footprint and in cacheline pingpong... +1

Re: [PATCH v2 net-next] bpf: fix bpf_perf_event_read() helper

After applying this patch I'm unable to use perf passing perf_event again like this: # perf record -a -e evt=cycles -e ./test_config_map.c/maps.pmu_map.event=evt/ --exclude-perf ls With -v it output: ... adding perf_bpf_probe:func_write adding perf_bpf_probe:func_write to 0x367d6a0 add bpf

Re: [PATCH v2 net-next] bpf: fix bpf_perf_event_read() helper

On 2015/10/22 6:58, Alexei Starovoitov wrote: Fix safety checks for bpf_perf_event_read(): - only non-inherited events can be added to perf_event_array map (do this check statically at map insertion time) - dynamically check that event is local and !pmu->count Otherwise buggy bpf program

[PATCH net-next RFC 2/2] vhost_net: basic polling support

This patch tries to poll for new added tx buffer for a while at the end of tx processing. The maximum time spent on polling were limited through a module parameter. To avoid block rx, the loop will end it there's new other works queued on vhost so in fact socket receive queue is also be polled.

[PATCH net-next RFC 1/2] vhost: introduce vhost_has_work()

This path introduces a helper which can give a hint for whether or not there's a work queued in the work list. Signed-off-by: Jason Wang --- drivers/vhost/vhost.c | 6 ++ drivers/vhost/vhost.h | 1 + 2 files changed, 7 insertions(+) diff --git a/drivers/vhost/vhost.c

Re: [PATCH] pcnet32: fix a logic error with pci_set_dma_mask

On Mon, 2015-10-12 at 05:38 -0700, David Miller wrote: > From: Geliang Tang > Date: Fri, 9 Oct 2015 03:45:39 -0700 > > > pcnet32 can't work on my machine recently. It says "architecture > > does not support 32bit PCI busmaster DMA". There is a logic error > > in it:

Re: [PATCH v2 net-next] bpf: fix bpf_perf_event_read() helper

On 2015/10/22 13:00, Alexei Starovoitov wrote: On 10/21/15 9:49 PM, Wangnan (F) wrote: After applying this patch I'm unable to use perf passing perf_event again like this: please do not top post and trim your replies. # perf record -a -e evt=cycles -e

[PATCH 5/8] mm: memcontrol: account socket memory on unified hierarchy

Socket memory can be a significant share of overall memory consumed by common workloads. In order to provide reasonable resource isolation out-of-the-box in the unified hierarchy, this type of memory needs to be accounted and tracked per default in the memory controller. Signed-off-by: Johannes

Re: Fw: [Bug 106241] New: shutdown(3)/close(3) behaviour is incorrect for sockets in accept(3)

On Wed, Oct 21, 2015 at 10:33:04PM +0200, casper@oracle.com wrote: > > >On Wed, Oct 21, 2015 at 03:38:51PM +0100, Alan Burlison wrote: > > > >> >There's going to be a notion of "last close"; that's what this refcount is > >> >about and _that_ is more than implementation detail. > >> > >>

Re: [Bug 106241] New: shutdown(3)/close(3) behaviour is incorrect for sockets in accept(3)

On Thu, Oct 22, 2015 at 05:17:50AM +0100, Alan Burlison wrote: > It's been said that the current mechanisms in Linux & some BSD > variants can be subject to races You do realize that it goes for the entire area? And the races found in this thread are in the BSD variant that tries to do

[PATCH net-next v7 00/10] Add new drivers: qed & qede

From: Ariel Elior This series implements the driver set for Qlogic's new QL4xxx series. These are 10/20/25/40/50/100 Gig capable converged nics, supporting ethernet (obviously), iscsi, fcoe, roce and iwarp protocols. The overall driver design includes a common module

[PATCH net-next v7 08/10] qede: Add support for link

From: Sudarsana Kalluru This adds basic link functionality to qede - driver still doesn't provide users with an API to change any link property, but it does request qed to initialize the link using default configuration, and registers a callback that allows it to

[PATCH net-next v7 05/10] qede: Add basic network device support

This patch includes the basic Rx/Tx support for the driver [although carrier will still never be turned on]. Following this patch the driver registers a network device, initializes it and prepares it for traffic. Signed-off-by: Sudarsana Kalluru Signed-off-by: Yuval

[PATCH net-next v7 02/10] qed: Add basic L2 interface

From: Manish Chopra This patch adds a public API for a network driver to work on top of QED. The interface itself is very minimal - it's mostly infrastructure, as the only content it has after this patch is a query for HW-based information required for the creation of a

[PATCH net-next v7 03/10] qede: Add basic Network driver

The Qlogic Everest Driver for Ethernet is the Ethernet specific module for QL4xxx ethernet products by Qlogic. This patch adds a very minimal PCI driver, one that doesn't yet register a network device, but one that does interact with qed and does a basic initialization of the HW. Signed-off-by:

[PATCH net-next v7 04/10] qed: Add slowpath L2 support

From: Manish Chopra This patch adds to the qed the support to configure various L2 elements, such as channels and basic filtering conditions. It also enhances its public API to allow qede to later utilize this functionality. Signed-off-by: Manish Chopra

Re: [PATCH net-next v4 0/2] mpls: multipath support

Roopa Prabhu writes: > From: Roopa Prabhu > > This patch adds support for MPLS multipath routes. > > Includes following changes to support multipath: > - splits struct mpls_route into 'struct mpls_route + struct mpls_nh'. > > - struct

[PATCH] net: ipv6: Dont add RT6_LOOKUP_F_IFACE flag if saddr set

741a11d9e410 ("net: ipv6: Add RT6_LOOKUP_F_IFACE flag if oif is set") adds the RT6_LOOKUP_F_IFACE flag to make device index mismatch fatal if oif is given. Hajime reported that this change breaks the Mobile IPv6 use case that wants to force the message through one interface yet use the source

[PATCH v2 net-next] xfrm: Fix unaligned access to stats in copy_to_user_state()

On sparc, deleting established SAs (e.g., by restarting ipsec) results in unaligned access messages via xfrm_del_sa -> km_state_notify -> xfrm_send_state_notify(). Even though struct xfrm_usersa_info is aligned on 8-byte boundaries, netlink attributes are fundamentally only 4 byte aligned, and

Re: [PATCH] net: dsa: mv88e6060: Fix false positive lockdep splat

On Wed, Oct 21, 2015 at 05:37:45PM +0200, Neil Armstrong wrote: > Like the change made for mv88e6xxx, use mutex_lock_nested() to avoid > lockdep to give false positives because of nested MDIO busses. Hi Neil We now have three instances of this, since mdio-mux.c has the same code. Maybe now would

[RFC Patch 11/12] IXGBEVF: Migrate VF statistic data

VF statistic regs are read-only and can't be migrated via writing back directly. Currently, statistic data returned to user space by the driver is not equal to value of statistic regs. VF driver records value of statistic regs as base data when net interface is up or open, calculate increased

[RFC Patch 01/12] PCI: Add virtfn_index for struct pci_device

Add "virtfn_index" member in the struct pci_device to record VF sequence of PF. This will be used in the VF sysfs node handle. Signed-off-by: Lan Tianyu --- drivers/pci/iov.c | 1 + include/linux/pci.h | 1 + 2 files changed, 2 insertions(+) diff --git

[PATCH net-next v2 2/3] switchdev: fix: pass correct obj size when deferring obj add/del

From: Scott Feldman Fixes: 4d429c5dd ("switchdev: introduce possibility to defer obj_add/del") Signed-off-by: Scott Feldman --- v1->v2: use correct "Fixes" tag, use common func to calc obj size for add/del net/switchdev/switchdev.c | 19

[PATCH net-next v2 1/3] switchdev: fix: erasing too much of vlan obj when handling multiple vlan specs

From: Scott Feldman When adding vlans with multiple IFLA_BRIDGE_VLAN_INFO attrs set in AFSPEC, we would wipe the vlan obj struct after the first IFLA_BRIDGE_VLAN_INFO. Fix this by only clearing what's necessary on each IFLA_BRIDGE_VLAN_INFO iteration. Fixes: 9e8f4a54

[PATCH net-next v2 3/3] switchdev: split switchdev_attr into individual structs

From: Scott Feldman This was already done for switchdev_objs. Changing switchdev_attrs to new style makes switchdev API consistent for both attrs and objs. No functional changes here. Signed-off-by: Scott Feldman Acked-by: Jiri Pirko

Re: [PATCH V5 1/1] bpf: control events stored in PERF_EVENT_ARRAY maps trace data output when perf sampling

On Wed, Oct 21, 2015 at 11:06:47PM +0800, pi3orama wrote: > > So explain; how does this eBPF stuff work. > > I think I get your point this time, and let me explain the eBPF stuff to you. > > You are aware that BPF programmer can break the system in this way: > > A=get_non_local_perf_event() >

Re: [PATCH 05/15] net: wireless: ti: Return flow can be simplified for wl1271_cmd_interrogate

Hi Punit, [auto build test WARNING on net/master -- if it's inappropriate base, please suggest rules for selecting the more suitable base] url: https://github.com/0day-ci/linux/commits/Punit-Vara/Fix-warnings-reported-by-coccicheck/20151021-230937 config: x86_64-allyesconfig (attached

[RFC Patch 02/12] IXGBE: Add new mail box event to restore VF status in the PF driver

This patch is to restore VF status in the PF driver when get event from VF. Signed-off-by: Lan Tianyu --- drivers/net/ethernet/intel/ixgbe/ixgbe.h | 1 + drivers/net/ethernet/intel/ixgbe/ixgbe_mbx.h | 1 + drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c | 40

[RFC Patch 00/12] IXGBE: Add live migration support for SRIOV NIC

This patchset is to propose a new solution to add live migration support for 82599 SRIOV network card. Im our solution, we prefer to put all device specific operation into VF and PF driver and make code in the Qemu more general. VF status migration

[RFC Patch 08/12] IXGBEVF: Rework code of finding the end transmit desc of package

When transmit a package, the end transmit desc of package indicates whether package is sent already. Current code records the end desc's pointer in the next_to_watch of struct tx buffer. This code will be broken if shifting desc ring after migration. The pointer will be invalid. This patch is to

Re: [PATCH nf-next 0/4] netfilter: rework netfilter ipv6 defrag

On 21 October 2015 at 07:50, Florian Westphal wrote: > Pablo Neira Ayuso wrote: >> > I can then wait for that change to pop up in nf-next and just resend >> > this series (which will then undo that change). >> >> I'd rather get things fixes for the existing

Re: [PATCH net-next 5/6] arcnet: com20020-pci: add led trigger support

Hi Michael, [auto build test ERROR on net-next/master -- if it's inappropriate base, please suggest rules for selecting the more suitable base] url: https://github.com/0day-ci/linux/commits/Michael-Grzeschik/arcnet-move-dev_free_skb-to-its-only-user/20151021-235034 config: i386-randconfig

[RFC Patch 05/12] IXGBE: Add new sysfs interface of "notify_vf"

This patch is to add new sysfs interface of "notify_vf" under sysfs directory of VF PCI device for Qemu to notify VF when migration status is changed. Signed-off-by: Lan Tianyu --- drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c | 30 ++

[RFC Patch 04/12] IXGBE: Add ixgbe_ping_vf() to notify a specified VF via mailbox msg.

This patch is to add ixgbe_ping_vf() to notify a specified VF. When migration status is changed, it's necessary to notify VF the change. VF driver will check the migrate status when it gets mailbox msg. Signed-off-by: Lan Tianyu ---

[RFC Patch 07/12] IXGBEVF: Add new mail box event for migration

VF status in the PF driver needs to be restored after migration and reset VF hardware. This patch is to add a new event for VF driver to notify PF driver to restore status. Signed-off-by: Lan Tianyu --- drivers/net/ethernet/intel/ixgbevf/mbx.h | 3 +++

[RFC Patch 09/12] IXGBEVF: Add live migration support for VF driver

To let VF driver in the guest to know migration status, Qemu will fake PCI configure reg 0xF0 and 0xF1 to show migrate status and get ack from VF driver. When migration starts, Qemu will set reg "0xF0" to 1, notify VF driver via triggering mail box msg and wait for VF driver to tell it's ready

Re: [PATCH -next] net: hisilicon: Never build on SPARC

On 10/21/2015 08:57 AM, Arnd Bergmann wrote: On Wednesday 21 October 2015 08:33:11 David Miller wrote: From: Guenter Roeck Date: Wed, 21 Oct 2015 07:56:18 -0700 @@ -57,6 +57,11 @@ extern int of_dma_get_range(struct device_node *np, u64 *dma_addr,

[PATCH] net: dsa: mv88e6060: Fix false positive lockdep splat

Like the change made for mv88e6xxx, use mutex_lock_nested() to avoid lockdep to give false positives because of nested MDIO busses. The false positive was observed using a mv88e6060 from a TI816X SoC. Signed-off-by: Neil Armstrong --- drivers/net/dsa/mv88e6060.c | 19

Re: [Bug 106241] New: shutdown(3)/close(3) behaviour is incorrect for sockets in accept(3)

From: David Miller Date: Wed, 21 Oct 2015 08:30:08 -0700 (PDT) (17:30 CEST) >From: Alan Burlison >Date: Wed, 21 Oct 2015 15:38:51 +0100 > >> While this algorithm is pretty expensive, it is not often invoked. > >I bet it can be easily intentionally

[PATCH net-next 4/6] arcnet: com20020-pci: add rotary index support

The EAE PLX-PCI card has a special rotary encoder to configure the address of every card individually. We take this information for the initial setup of the cards dev_id. Signed-off-by: Michael Grzeschik --- drivers/net/arcnet/com20020-pci.c | 33

[PATCH net-next 5/6] arcnet: com20020-pci: add led trigger support

The EAE PLX-PCI card has special leds on the the main io pci resource bar. This patch adds support to trigger the conflict and data leds with the packages. Signed-off-by: Michael Grzeschik --- drivers/net/arcnet/arcdevice.h| 19 ++

Fw: [Bug 106361] New: Kernel bug: Thread aborts unexpectedly when sending UDP message

Begin forwarded message: Date: Tue, 20 Oct 2015 15:20:24 + From: "bugzilla-dae...@bugzilla.kernel.org" To: "shemmin...@linux-foundation.org" Subject: [Bug 106361] New: Kernel bug: Thread aborts unexpectedly when

Re: [PATCH net] net: try harder to not reuse ifindex when moving interfaces

From: Jiri Benc Date: Wed, 21 Oct 2015 17:25:02 +0200 > On Wed, 21 Oct 2015 08:32:14 -0700 (PDT), David Miller wrote: >> As you say the apps are broken, so file a bug and have them fixed. >> >> The assumption is clearly invalid, so apps cannot make such an >> assumption. > >

Re: Fw: [Bug 106361] New: Kernel bug: Thread aborts unexpectedly when sending UDP message

On Wed, 2015-10-21 at 09:03 -0700, Stephen Hemminger wrote: > > Begin forwarded message: > > Date: Tue, 20 Oct 2015 15:20:24 + > From: "bugzilla-dae...@bugzilla.kernel.org" > > To: "shemmin...@linux-foundation.org" >

[RFC Patch 06/12] IXGBEVF: Add self emulation layer

In order to restore VF function after migration, add self emulation layer to record regs' values during accessing regs. Signed-off-by: Lan Tianyu --- drivers/net/ethernet/intel/ixgbevf/Makefile| 3 ++- drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 2 +-

[RFC Patch 10/12] IXGBEVF: Add lock to protect tx/rx ring operation

Ring shifting during restoring VF function maybe race with original ring operation(transmit/receive package). This patch is to add tx/rx lock to protect ring related data. Signed-off-by: Lan Tianyu --- drivers/net/ethernet/intel/ixgbevf/ixgbevf.h | 2 ++

[RFC Patch 12/12] IXGBEVF: Track dma dirty pages

Migration relies on tracking dirty page to migrate memory. Hardware can't automatically mark a page as dirty after DMA memory access. VF descriptor rings and data buffers are modified by hardware when receive and transmit data. To track such dirty memory manually, do dummy writes(read a byte and

[PATCH net-next 3/6] arcnet: com20020-pci: set dev_port to the subdevice index

This patch sets the dev_port according to the index of the card. This can be used by udev to name the ports in userspace. Signed-off-by: Michael Grzeschik --- drivers/net/arcnet/com20020-pci.c | 1 + 1 file changed, 1 insertion(+) diff --git

[PATCH net-next 6/6] arcnet: add netif_carrier_on/off for reconnect

The arcnet device has no interrupt to detect if the link has changed from disconnected to connected. This patch adds an timer to toggle the link detection. The timer will get retriggered as long as the reconnection interrupts accure. If the recon interrupts hold off for >1s we define the

[PATCH net-next 2/6] arcnet: com20020: add enable and disable device on open/close

This patch changes the driver to properly work with the linux netif interface. The controller gets enabled on open and disabled on close. Therefor it removes every bogus start of the xceiver. It only gets enabled on com20020_open and disabled on com20020_close. Signed-off-by: Michael Grzeschik

[GIT PULL] ARCNET: code simplification and features

The following changes since commit 6ac311ae8bfb47de09f349e781e26373944d2ee3: Adding switchdev ageing notification on port bridged (2015-10-21 07:50:57 -0700) are available in the git repository at: ssh+git://git.pengutronix.de/git/mgr/linux.git tags/arcnet-for-4.4-rc1 for you to fetch

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