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This adds list_cut_position() which lets you cut a list into
two lists given a pivot in the list.
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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If you are using linked lists for queues list_splice() will not do what
you would expect even if you use the elements passed reversed. We need
to handle these differently. We add list_splice_tail() and
list_splice_tail_init().
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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Sofar far pktgen have had a restriction to only use one device per kernel
thread. With the new multiqueue architecture this is no longer adequate.
The patch below is an effort to remove this by in pktgen configuration
adding a tag to the device name a la eth0@0 etc. The tag is used for
usual device config just as before. Also a new flag is introduced to mirror
queue_map with sending threads smp_processor_id() QUEUE_MAP_CPU.
An example: We use 4 CPU's to send to one 10g interface (eth0)
and we use the new tagging to send a mix of packet sizes, 64, 576 and
1500 bytes. Also we use TX queues according to smp_processor_id()
PGDEV=/proc/net/pktgen/kpktgend_0
pgset "add_device eth0@0"
PGDEV=/proc/net/pktgen/kpktgend_1
pgset "add_device eth0@1"
PGDEV=/proc/net/pktgen/kpktgend_2
pgset "add_device eth0@2"
PGDEV=/proc/net/pktgen/kpktgend_3
pgset "add_device eth0@3"
....
PGDEV=/proc/net/pktgen/eth0@0
pgset "pkt_size 64"
pgset "flag QUEUE_MAP_CPU"
PGDEV=/proc/net/pktgen/eth0@1
pgset "pkt_size 572"
pgset "flag QUEUE_MAP_CPU"
PGDEV=/proc/net/pktgen/eth0@2
pgset "pkt_size 1496"
PGDEV=/proc/net/pktgen/eth0@3
pgset "pkt_size 1496"
pgset "flag QUEUE_MAP_CPU"
Signed-off-by: Robert Olsson <robert.olsson@its.uu.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
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master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6
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git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6 into tmp
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Remove extra help text from HDLC_PPP config option.
Signed-off-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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If a packet_type specifies an active slave to bonding and not just any
interface, allow it to receive frames that came in on that interface.
Signed-off-by: Joe Eykholt <jre@nuovasystems.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Allow a packet_type that specifies the exact device to receive
even on an inactive bonding slave devices. This is important for some
L2 protocols such as LLDP and FCoE. This can eventually be used
for the bonding special cases as well.
Signed-off-by: Joe Eykholt <jre@nuovasystems.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Otherwise subsequent changes need multiple return values.
Signed-off-by: Joe Eykholt <jre@nuovasystems.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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It is wrong to destroy a bonding master from a context that uses the sysfs
of that bond. When last IPoIB slave is unenslaved from by writing to a
sysfs file (for bond0 this would be /sys/class/net/bond0/bonding/slaves)
the driver tries to destroy the bond. This is wrong and can lead to a
lockup or a crash. This fix lets the bonding master stay and relies on
the user to destroy the bonding master if necessary (i.e. before module
ib_ipoib is unloaded)
This patch affects only bonds of IPoIB slaves. Ethernet slaves stay
unaffected.
Signed-off-by: Moni Shoua <monis@voltaire.com>
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Refactor mii monitor. As with the previous ARP monitor refactor,
the motivation for this is to handle locking rationally (in this case,
removing conditional locking) and generally clean up the code.
This patch breaks up the monolithic mii monitor into two phases:
an inspection phase, followed by an optional commit phase. The commit phase
is the only portion that requires RTNL or makes changes to state, and is
only called when inspection finds something to change.
Signed-off-by: Jay Vosburgh <fubar@us.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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If the following packet flow happen, kernel will panic.
MathineA MathineB
SYN
---------------------->
SYN+ACK
<----------------------
ACK(bad seq)
---------------------->
When a bad seq ACK is received, tcp_v4_md5_do_lookup(skb->sk, ip_hdr(skb)->daddr))
is finally called by tcp_v4_reqsk_send_ack(), but the first parameter(skb->sk) is
NULL at that moment, so kernel panic happens.
This patch fixes this bug.
OOPS output is as following:
[ 302.812793] IP: [<c05cfaa6>] tcp_v4_md5_do_lookup+0x12/0x42
[ 302.817075] Oops: 0000 [#1] SMP
[ 302.819815] Modules linked in: ipv6 loop dm_multipath rtc_cmos rtc_core rtc_lib pcspkr pcnet32 mii i2c_piix4 parport_pc i2c_core parport ac button ata_piix libata dm_mod mptspi mptscsih mptbase scsi_transport_spi sd_mod scsi_mod crc_t10dif ext3 jbd mbcache uhci_hcd ohci_hcd ehci_hcd [last unloaded: scsi_wait_scan]
[ 302.849946]
[ 302.851198] Pid: 0, comm: swapper Not tainted (2.6.27-rc1-guijf #5)
[ 302.855184] EIP: 0060:[<c05cfaa6>] EFLAGS: 00010296 CPU: 0
[ 302.858296] EIP is at tcp_v4_md5_do_lookup+0x12/0x42
[ 302.861027] EAX: 0000001e EBX: 00000000 ECX: 00000046 EDX: 00000046
[ 302.864867] ESI: ceb69e00 EDI: 1467a8c0 EBP: cf75f180 ESP: c0792e54
[ 302.868333] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068
[ 302.871287] Process swapper (pid: 0, ti=c0792000 task=c0712340 task.ti=c0746000)
[ 302.875592] Stack: c06f413a 00000000 cf75f180 ceb69e00 00000000 c05d0d86 000016d0 ceac5400
[ 302.883275] c05d28f8 000016d0 ceb69e00 ceb69e20 681bf6e3 00001000 00000000 0a67a8c0
[ 302.890971] ceac5400 c04250a3 c06f413a c0792eb0 c0792edc cf59a620 cf59a620 cf59a634
[ 302.900140] Call Trace:
[ 302.902392] [<c05d0d86>] tcp_v4_reqsk_send_ack+0x17/0x35
[ 302.907060] [<c05d28f8>] tcp_check_req+0x156/0x372
[ 302.910082] [<c04250a3>] printk+0x14/0x18
[ 302.912868] [<c05d0aa1>] tcp_v4_do_rcv+0x1d3/0x2bf
[ 302.917423] [<c05d26be>] tcp_v4_rcv+0x563/0x5b9
[ 302.920453] [<c05bb20f>] ip_local_deliver_finish+0xe8/0x183
[ 302.923865] [<c05bb10a>] ip_rcv_finish+0x286/0x2a3
[ 302.928569] [<c059e438>] dev_alloc_skb+0x11/0x25
[ 302.931563] [<c05a211f>] netif_receive_skb+0x2d6/0x33a
[ 302.934914] [<d0917941>] pcnet32_poll+0x333/0x680 [pcnet32]
[ 302.938735] [<c05a3b48>] net_rx_action+0x5c/0xfe
[ 302.941792] [<c042856b>] __do_softirq+0x5d/0xc1
[ 302.944788] [<c042850e>] __do_softirq+0x0/0xc1
[ 302.948999] [<c040564b>] do_softirq+0x55/0x88
[ 302.951870] [<c04501b1>] handle_fasteoi_irq+0x0/0xa4
[ 302.954986] [<c04284da>] irq_exit+0x35/0x69
[ 302.959081] [<c0405717>] do_IRQ+0x99/0xae
[ 302.961896] [<c040422b>] common_interrupt+0x23/0x28
[ 302.966279] [<c040819d>] default_idle+0x2a/0x3d
[ 302.969212] [<c0402552>] cpu_idle+0xb2/0xd2
[ 302.972169] =======================
[ 302.974274] Code: fc ff 84 d2 0f 84 df fd ff ff e9 34 fe ff ff 83 c4 0c 5b 5e 5f 5d c3 90 90 57 89 d7 56 53 89 c3 50 68 3a 41 6f c0 e8 e9 55 e5 ff <8b> 93 9c 04 00 00 58 85 d2 59 74 1e 8b 72 10 31 db 31 c9 85 f6
[ 303.011610] EIP: [<c05cfaa6>] tcp_v4_md5_do_lookup+0x12/0x42 SS:ESP 0068:c0792e54
[ 303.018360] Kernel panic - not syncing: Fatal exception in interrupt
Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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As noticed by Stephen Hemminger, the root qdisc is denoted by
TC_H_ROOT, not zero.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Some hardware set promisc when they are requested to set IFF_ALLMULTI flag.
It's ok, but if drivers set IFF_PROMISC flag when they set promisc,
it will broken upper layer handle for promisc and allmulti.
In addition, drivers can use their own hardware programming to make it.
So do not allow drivers to set IFF_* flags.
This is a general driver fix, so I didn't split it to pieces and send
to specific driver maintainers.
Signed-off-by: Wang Chen <wangchen@cn.fujitsu.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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The dm9000 driver reads the chip's MAC address from the attached EEPROM. When
no EEPROM is present, or when the MAC address is invalid, it falls back to
reading the address from the chip.
This patch lets platform code set the desired MAC address through platform
data.
Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Fix possible bug where end of receive buffer could be overwritten.
The allocation needs to allow for the reserved space. This would only happen
if device received packet greater than Ethernet standard MTU.
Change this driver to use netdev_alloc_skb rather than setting skb->dev
directly. For the initial allocation it doesn't need to be GFP_ATOMIC.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Introduce the speed_hi field to ethtool_cmd, using the reserved space,
to expand the speed field to 2^32 Megabits/second.
Making this field expansion now gives us plenty of time to fix up the
user-space pieces that use SIOCETHTOOL before hardware faster than 64
Gb/s is available.
Signed-off-by: Brandon Philips <bphilips@suse.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Reference: https://launchpad.net/bugs/140511
The Belkin bluetooth dongle unfortunately shares the vendor and device id
with the network adapter which causes lockups whenever the bluetooth
dongle is inserted.
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Ben Collins <ben.collins@canonical.com>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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drivers/net/netxen/netxen_nic_hw.c: In function 'netxen_nic_pci_mem_read_direct':
drivers/net/netxen/netxen_nic_hw.c:1414: warning: format '%llx' expects type 'long long unsigned int', but argument 3 has type 'u64'
drivers/net/netxen/netxen_nic_hw.c: In function 'netxen_nic_pci_mem_write_direct':
drivers/net/netxen/netxen_nic_hw.c:1487: warning: format '%llx' expects type 'long long unsigned int', but argument 3 has type 'u64'
You don't know what type was used for u64 hence they cannot be printed without
casting.
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Add missing sanity check to tty operation.
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Eugene Teo <eteo@redhat.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Fix all errors and warnings reported by checkpatch.pl
Signed-off-by: Gustavo F. Padovan <gustavo@las.ic.unicamp.br>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Fix all errors and warnings reported by checkpatch.pl
Signed-off-by: Gustavo F. Padovan <gustavo@las.ic.unicamp.br>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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We don't need this into a void function.
Signed-off-by: Gustavo F. Padovan <gustavo@las.ic.unicamp.br>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Add support SH7619 Internal ethernet controler.
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Setup of the mac filter lost the upper 16bit of the mac address. This
bug got unconvered by a patch, which fixed the promiscous handling.
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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xen-netfront never called netif_start_queue() and was was waking the
queue on xennet_open(), triggering the BUG_ON() on __netif_schedule().
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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elements.
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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The driver was erroneously clearing this bit though the hardware supports multicast.
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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This device is one side of a two-function adapter (NIC and iSCSI).
Promiscuous mode setting/clearing is not allowed from the NIC side.
Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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For NX3031, multicast filtering, promisc mode, and max frame size
setting is handled by firmware, driver needs to send request to
enable/disable it.
For old chip revisions / firmware, driver still sets it directly.
Added function pointer to set mtu according to chip revision.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Initialize producer and consumer indices during netdev open(), only
for old firmware/chip.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Fix legacy interrupt mode for NX3031 chips, read pci interrupt state
in hardware to guard against spurious interrupt.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Add couple of new board configurations based on NX3031 chip.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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For NX3031, the phy is managed by firmware, so driver should avoid
setting any phy registers.
Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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The commit that made the CONFIG_GFAR_NAPI code unconditional was
included at the same time as a new CONFIG_GFAR_NAPI user, resulting
in these bugus #ifdef's.
Reported-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Currently when we do a packet flood to the Ethernet port, the console
reports error every time when a packet is dropped. This is too
redundant and cost performance. Remove message for this type of event.
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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This patch adds support for limiting the number of tx pause frames to a
default of 8. Previously, hardware would send out continuous stream of
pause frames.
Signed-off-by: Ayaz Abdulla <aabdulla@nvidia.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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This patch adds jumbo frame support for MCP79 chipsets.
Signed-off-by: Ayaz Abdulla <aabdulla@nvidia.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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This patch adds support for new tx statistic counters in the hardware -
unicast, multicast, and broadcast
Signed-off-by: Ayaz Abdulla <aabdulla@nvidia.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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This patch enforces a stricter policy on rx errors. The driver needs to
verify whether there are multiple rx errors versus a single error.
Signed-off-by: Ayaz Abdulla <aabdulla@nvidia.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/romieu/netdev-2.6 into tmp
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Fix the problems reported for 2.6.27-rc1 caused by over aggressive
power management. Turning clock off on PCI Express is problematic for WOL,
and when doing multi-booting.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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igb_init_managability does not actually perform any function as the two
registers it attempts to write are both read only on the host. This patch
removes the function and all references to it from the driver.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Three functions were left in the code that are no longer used. I am removing
these functions just to keep the code clean.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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The igb_mta_set function was not being correctly used
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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This patch changes the PCS configuration for serdes so that the flow
control options change be set via the ethtool -A option.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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With a fiber or serdes NIC installed the driver was causing a null pointer
dereference on driver unload.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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The internal name was used in comments, replaced with silicon part number.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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