Commit Graph

112300 Commits

Author SHA1 Message Date
Ursula Braun ff2aed7da1 ctcm: get rid of compile warning
-Wunused-but-set-variable generates compile warnings. The affected
variables are removed.

Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-13 14:55:20 -04:00
Heiko Carstens 424f73b3ec lcs: get rid of compile warning
-Wunused-but-set-variable generates a compile warning for lcs' tasklet
function. Invoked functions contain already error handling; thus
additional return code checking is not needed here.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-13 14:55:20 -04:00
Heiko Carstens 38ed18ff5e claw: remove unused return code handling
Remove unused return code handling. The claw driver is mostly dead, so
just make sure it keeps compiling without warnings.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-13 14:55:20 -04:00
Sebastian Ott 3e70b3b814 qeth: add owner to ccw driver
Fill in the owner of qeth's ccw device driver.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-13 14:55:20 -04:00
Frank Blaschka 1da74b1c10 qeth: add OSA concurrent hardware trap
This patch improves FFDC (first failure data capture) by requesting
a hardware trace in case the device driver, the hardware or a user
detects an error.

Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-13 14:55:20 -04:00
Frank Blaschka c5e631a8d4 qeth: convert to hw_features part 2
Set rx csum default to hw checksumming again.
Remove sysfs interface for rx csum (checksumming) and TSO (large_send).
With the new hw_features it does not work to keep the old sysfs
interface in parallel. Convert options.checksum_type to new hw_features.

Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-13 14:55:20 -04:00
Anirban Chakraborty 32f5469b5e qlcnic: Bumped up version number to 5.0.18
Update driver version number

Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-13 14:44:14 -04:00
Anirban Chakraborty b3c687317f qlcnic: Take FW dump via ethtool
Driver checks if the previous dump has been cleared before taking the dump.
It doesn't take the dump if it is not cleared.

Changes from v2:
Added lock to protect dump data structures from being mangled while
dumping or setting them via ethtool.

Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-13 14:44:14 -04:00
Anirban Chakraborty 18f2f616be qlcnic: FW dump support
Added code to take FW dump.
o Driver queries FW at the init time and gets the dump template
o It takes FW dump as per the dump template
o Level of FW dump (and its size) is configured via dump flag

Signed-off-by: Sritej Velaga <sritej.velaga@qlogic.com>
Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-13 14:44:12 -04:00
Sathya Perla 1dbf53a282 be2net: fix mbox polling for signal reception
Sending mbox cmds require multiple steps of writing to the DB register and polling
for an ack. Gettting interrupted in the middle by a signal breaks the mbox protocol.
Use msleep() to not get interrupted.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-13 14:41:35 -04:00
Sathya Perla 6ed35eea3b be2net: handle signal reception while waiting for POST
If waiting on POST returns prematurely (due to a signal), abort polling and return an error.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-13 14:41:34 -04:00
David S. Miller 5c5095494f Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-next-2.6 2011-05-12 23:01:55 -04:00
Michał Mirosław b2a103e6d0 bonding: convert to ndo_fix_features
This should also fix updating of vlan_features and propagating changes to
VLAN devices on the bond.

Side effect: it allows user to force-disable some offloads on the bond
interface.

Note: NETIF_F_VLAN_CHALLENGED is managed by bond_fix_features() now.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-12 18:45:59 -04:00
Alexey Orishko 6c60408e33 CDC NCM: Add mising short packet in cdc_ncm driver
Changes:
- while making NTB, driver shall check if device dwNtbOutMaxSize is higher than
 host value and shall add a short packet if this is the case
- previous temporary patch for this issue is replaced by this one

Signed-off-by: Alexey Orishko <alexey.orishko@stericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-12 18:30:28 -04:00
Mahesh Bandewar 06c03c02ea tg3: Allow ethtool to enable/disable loopback.
This patch adds tg3_set_features() to handle loopback mode. Currently the
capability is added for the devices which support internal MAC loopback mode.
So when enabled, it enables internal-MAC loopback.

Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-12 18:04:58 -04:00
Shreyas Bhatewara e154b639bb vmxnet3: Use single tx queue when CONFIG_PCI_MSI not defined
Resending this patch with few changes.

Avoid multiple queues when MSI or MSI-X not available

Limit number of Tx queues to 1 if MSI/MSI-X support is not configured in
the kernel. This will make number of tx and rx queues equal when MSI/X
is not configured thus providing better performance.

Signed-off-by: Bhavesh Davda <bhavesh@vmware.com>
Signed-off-by: Shreyas N Bhatewara <sbhatewara@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-12 17:32:53 -04:00
Padmanabh Ratnakar 4d586b823a be2net: Fix to prevent flooding of TX queue
Start/stop TX queue is controlled by TX queue "used" counter.
It is incremented while WRBs are posted to TX queue and
decremented when TX completions are received. This counter was
getting decremented before HW is informed about processing of TX
completions. As used counter is decremented, transmit function
posts new WRBs and creates completion queue full scenario in HW.

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-11 19:10:03 -04:00
Padmanabh Ratnakar ecd0bf0f7b be2net: Use NTWK_RX_FILTER command for promiscous mode
Use OPCODE_COMMON_NTWK_RX_FILTER command for promiscous mode as
OPCODE_ETH_PROMISCUOUS command is getting deprecated.

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-11 19:10:03 -04:00
Padmanabh Ratnakar 18a91e6002 be2net: In case of UE, do not dump registers for Lancer
In case of UE, do not dump registers for Lancer as they are not
supported.

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-11 19:10:03 -04:00
Padmanabh Ratnakar 6bd011d542 be2net: Disable coalesce water mark mode of CQ for Lancer
Disable coalesce water mark mode of CQ for Lancer

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-11 19:10:03 -04:00
Padmanabh Ratnakar 009dd872d7 be2net: Handle error completion in Lancer
In Lancer if a frame is DMAed partially due to lack of RX buffers,
an error completion is sent with packet size as zero and num_recvd
indicating number of used buffers. These buffers need to be freed
and packet dropped.

Signed-off-by: Padmanabh Ratnakar <padmanabh.ratnakar@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-11 19:10:02 -04:00
David S. Miller 3c709f8fb4 Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-3.6
Conflicts:
	drivers/net/benet/be_main.c
2011-05-11 14:26:58 -04:00
Oliver Hartkopp 0d4420a90b slcan: fix ldisc->open retval
TTY layer expects 0 if the ldisc->open operation succeeded.

Reported-by: Matvejchikov Ilya <matvejchikov@gmail.com>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-10 15:04:07 -07:00
Dan Williams aae1e743fe net/usb: mark LG VL600 LTE modem ethernet interface as WWAN
Like other mobile broadband device ethernet interfaces, mark the LG
VL600 with the 'wwan' devtype so userspace knows it needs additional
configuration via the AT port before the interface can be used.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-10 15:03:50 -07:00
David S. Miller 5fc3590c81 infiniband: Remove rt->rt_src usage in addr4_resolve()
Use an explicit flow key and fetch it from there.

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-10 13:32:48 -07:00
Joe Perches 1c3319fb69 tulip: Use pr_<level> where appropriate
Use the current logging styles.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-09 12:51:16 -07:00
Joe Perches 726b65ad44 tulip: Convert uses of KERN_DEBUG
Convert logging messages to more current styles.

Added -DDEBUG to Makefile to maintain current message logging.
This could be converted to a specific CONFIG_TULIP_DEBUG option.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-09 12:51:15 -07:00
Joe Perches 163ef0b592 tulip: Convert printks to netdev_<level>
Use the current more descriptive logging styles.

Add pr_fmt and remove PFX where appropriate.
Use netif_<level>, netdev_<level>
Indent a few blocks in xircom_cb where appropriate.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-09 12:51:15 -07:00
Joe Perches 54668b84bd tulip: xircom_cb: Convert #ifdef DEBUG blocks and enter/leave uses
Change the blocks that are guarded by #if DEBUG to
be #if defined DEBUG && DEBUG > 1 so that pr_debug
can be used later.

Remove enter/leave macros and uses.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-09 12:51:14 -07:00
David S. Miller 4a9e25d8de Merge branch 'davem-next.r8169' of git://git.kernel.org/pub/scm/linux/kernel/git/romieu/netdev-2.6 2011-05-09 12:48:05 -07:00
Tomoya b0e6baf561 pch_gbe: support ML7223 IOH
Support new device OKI SEMICONDUCTOR ML7223 IOH(Input/Output Hub).
The ML7223 IOH is for MP(Media Phone) use.
The ML7223 is companion chip for Intel Atom E6xx series.
The ML7223 is completely compatible for Intel EG20T PCH.

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-09 12:45:28 -07:00
Alexey Dobriyan 4940fc889e net: add mac_pton() for parsing MAC address
mac_pton() parses MAC address in form XX:XX:XX:XX:XX:XX and only in that form.

mac_pton() doesn't dirty result until it's sure string representation is valid.

mac_pton() doesn't care about characters _after_ last octet,
it's up to caller to deal with it.

mac_pton() diverges from 0/-E return value convention.
Target usage:

	if (!mac_pton(str, whatever->mac))
		return -EINVAL;
	/* ->mac being u8 [ETH_ALEN] is filled at this point. */
	/* optionally check str[3 * ETH_ALEN - 1] for termination */

Use mac_pton() in pktgen and netconsole for start.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-09 12:10:49 -07:00
Alexey Dobriyan 99f823f98f netconsole: switch to kstrto*() functions
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-09 12:10:48 -07:00
Michał Mirosław 0693e88e6c net: bonding: factor out rlock(bond->lock) in xmit path
Pull read_lock(&bond->lock) and BOND_IS_OK() to bond_start_xmit() from
mode-dependent xmit functions.

netif_running() is always true in hard_start_xmit.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-09 12:05:59 -07:00
Francois Romieu 5d320a205d r8169: avoid late chip identifier initialisation.
Unknown 8168 chips did not have any PLL power method set as they
did not inherit a default family soon enough. Fix it.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Realtek linux nic maintainers <nic_swsd@realtek.com>
2011-05-09 21:03:12 +02:00
Francois Romieu 85bffe6ca2 r8169: merge firmware information into the chipset description data.
- RTL_GIGA_MAC_NONE is a fake index so put it at the end of the
  enumeration and shift everybody.
- RTL_GIGA_MAC_VER_17 / RTL_GIGA_MAC_VER_16 ordering fixed. Though
  not wrong it was confusing enough to wonder if things were right.

Renaming rtl_chip_info was not strictly necessary. It allows to
check the patch for the correct use of the indexes though.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Realtek linux nic maintainers <nic_swsd@realtek.com>
2011-05-09 21:03:10 +02:00
Francois Romieu 31bd204f97 r8169: provide some firmware information via ethtool.
There is no real firmware version yet but the manpage of ethtool
is rather terse about the driver information.

Former output:
$ ethtool -i eth1
driver: r8169
version: 2.3LK-NAPI
firmware-version:
bus-info: 0000:01:00.0
$ ethtool -i eth0
driver: r8169
version: 2.3LK-NAPI
firmware-version:
bus-info: 0000:03:00.0

Current output:
$ ethtool -i eth1
driver: r8169
version: 2.3LK-NAPI
firmware-version: N/A
bus-info: 0000:01:00.0

$ ethtool -i eth0
driver: r8169
version: 2.3LK-NAPI
firmware-version: rtl_nic/rtl8168d-1.fw
bus-info: 0000:03:00.0

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Fixed-by Ciprian Docan <docan@eden.rutgers.edu>
Cc: Realtek linux nic maintainers <nic_swsd@realtek.com>
Cc: Fejes József <fejes@joco.name>
Cc: Borislav Petkov <borislav.petkov@amd.com>
2011-05-09 21:03:08 +02:00
Francois Romieu 56de414c0c r8169: remove non-NAPI context invocation of rtl8169_rx_interrupt.
Invocation of rtl8169_rx_interrupt from rtl8169_reset_task was originally
intended to retrieve as much packets as possible from the rx ring when a
reset was needed. Nowadays rtl8169_reset_task is only scheduled, with
some delay
a. from the tx timeout watchdog
b. when resuming
c. from rtl8169_rx_interrupt itself

It's dubious that the loss of outdated packets will matter much for a)
and b). c) does not need to call itself again.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Realtek linux nic maintainers <nic_swsd@realtek.com>
2011-05-09 21:03:06 +02:00
Francois Romieu 4876cc1e49 r8169: link speed selection timer rework.
The implementation was a bit krusty.

The 10s rtl8169_phy_timer timer has been (was ?) required with older
8169 for adequate phy operation when full gigabit is advertised in
autonegotiated mode. The timer does nothing if the link is up.
Otherwise it keeps resetting the phy until things improve.

- the device private data field phy_1000_ctrl_reg was used to
  schedule the timer. Avoid it and save a few bytes.

- rtl8169_set_settings
  pending timer is disabled before changing the link settings as
  rtl8169_phy_timer is not always needed (see the removed test in
  rtl8169_phy_timer).

- rtl8169_set_speed
  the requested link parameters may not match the chipset : bail out
  early on failure.

- rtl8169_open
  Calling rtl8169_request_timer is redundant with
  -> rtl8169_open
     -> rtl8169_init_phy
        -> rtl8169_set_speed
           -> mod_timer
  The latter always enables the phy timer whereas the former did not
  for RTL_GIGA_MAC_VER_01. It should not make things worse but only
  time will tell if reality agrees.

- rtl8169_request_timer : unused yet. Removed.

- rtl8169_delete_timer : useless. Bloat. Removed.

Side effect : the timer may kick in if the TBI is enabled. I do not
know if the TBI has ever been used in real life.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Realtek linux nic maintainers <nic_swsd@realtek.com>
2011-05-09 21:03:03 +02:00
Francois Romieu 826e6cbdad r8169: rtl8169_set_speed_xmii cleanup.
Shorten chipset version test.

No functional change.

Careful readers will notice that the 'supports_gmii' flag is deduced
from the device PCI id. Though less specific than the chipset related
RTL_GIGA_MAC_VER_XY, it is good enough to detect a GMII deprieved 810x.
Some features push for a device specific configuration (improved jumbo
frame support for instance). 'supports_gmii' will follow this path
if / when the device PCI id test stops working.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Realtek linux nic maintainers <nic_swsd@realtek.com>
2011-05-09 21:03:01 +02:00
Francois Romieu 6f43adc88f r8169: remove some code duplication.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Realtek linux nic maintainers <nic_swsd@realtek.com>
2011-05-09 21:02:58 +02:00
Francois Romieu cecb5fd7c2 r8169: style cleanups.
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Realtek linux nic maintainers <nic_swsd@realtek.com>
2011-05-09 21:02:55 +02:00
Toshiharu Okada 5d05a04d28 PCH_GbE : Fixed the issue of checksum judgment
The checksum judgment was mistaken.
  Judgment result
     0:Correct 1:Wrong

This patch fixes the issue.

Signed-off-by: Toshiharu Okada <toshiharu-linux@dsn.okisemi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-09 11:55:16 -07:00
Toshiharu Okada ce3dad0f74 PCH_GbE : Fixed the issue of collision detection
The collision detection setting was invalid.
When collision occurred, because data was not resent,
there was an issue to which a transmitting throughput falls.

This patch enables the collision detection.

Signed-off-by: Toshiharu Okada <toshiharu-linux@dsn.okisemi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-09 11:55:15 -07:00
Matvejchikov Ilya 057bef9388 NET: slip, fix ldisc->open retval
TTY layer expects 0 if the ldisc->open operation succeeded.

Signed-off-by : Matvejchikov Ilya <matvejchikov@gmail.com>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Acked-by: Alan Cox <alan@linux.intel.com>

Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-09 11:53:07 -07:00
Somnath Kotur 6709d9521d be2net: Fixed bugs related to PVID.
Fixed bug to make sure 'pvid' retrieval will work on big endian hosts.
Fixed incorrect comparison between the Rx Completion's 16-bit VLAN TCI
and the PVID. Now comparing only the relevant 12 bits corresponding to
the VID.
Renamed 'vid' field under Rx Completion to 'vlan_tag' to reflect
accurate description.

Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-09 11:51:04 -07:00
Kleber Sacilotto de Souza dcbe14b91a ehea: fix wrongly reported speed and port
Currently EHEA reports to ethtool as supporting 10M, 100M, 1G and
10G and connected to FIBRE independent of the hardware configuration.
However, when connected to FIBRE the only supported speed is 10G
full-duplex, and the other speeds and modes are only supported
when connected to twisted pair.

Signed-off-by: Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com>
Acked-by: Breno Leitao <leitao@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-09 11:49:24 -07:00
Eric Dumazet 226bd34114 net: use batched device unregister in veth and macvlan
veth devices dont use the batched device unregisters yet.

Since veth are a pair of devices, it makes sense to use a batch of two
unregisters, this roughly divides dismantle time by two.

Fix this by changing dellink() callers to always provide a non NULL
head. (Idea from Michał Mirosław)

This patch also handles macvlan case : We now dismantle all macvlans on
top of a lower dev at once.

Reported-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Michał Mirosław <mirqus@gmail.com>
Cc: Jesse Gross <jesse@nicira.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Ben Greear <greearb@candelatech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-09 11:41:40 -07:00
Mahesh Bandewar eed2a12f1e net: Allow ethtool to set interface in loopback mode.
This patch enables ethtool to set the loopback mode on a given interface.
By configuring the interface in loopback mode in conjunction with a policy
route / rule, a userland application can stress the egress / ingress path
exposing the flows of the change in progress and potentially help developer(s)
understand the impact of those changes without even sending a packet out
on the network.

Following set of commands illustrates one such example -
    a) ip -4 addr add 192.168.1.1/24 dev eth1
    b) ip -4 rule add from all iif eth1 lookup 250
    c) ip -4 route add local 0/0 dev lo proto kernel scope host table 250
    d) arp -Ds 192.168.1.100 eth1
    e) arp -Ds 192.168.1.200 eth1
    f) sysctl -w net.ipv4.ip_nonlocal_bind=1
    g) sysctl -w net.ipv4.conf.all.accept_local=1
    # Assuming that the machine has 8 cores
    h) taskset 000f netserver -L 192.168.1.200
    i) taskset 00f0 netperf -t TCP_CRR -L 192.168.1.100 -H 192.168.1.200 -l 30

Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Acked-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08 15:59:12 -07:00
Ben Hutchings 9c412942a0 ipheth: Properly distinguish length and alignment in URBs and skbs
The USB protocol this driver implements appears to require 2 bytes of
padding in front of each received packet.  This used to be equal to
the value of NET_IP_ALIGN on x86, so the driver abused that constant
and mostly worked, but this is no longer the case.  The driver also
mixed up the URB and packet lengths, resulting in 2 bytes of junk at
the end of the skb.

Introduce a private constant for the 2 bytes of padding; fix this
confusion and check for the under-length case.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-05-08 15:45:13 -07:00