Commit Graph

59158 Commits

Author SHA1 Message Date
Jisheng Zhang
9bd9ddb7f8 net: mvneta: replace MVNETA_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTES
The mvneta is also used in some Marvell berlin family SoCs which may
have 64bytes cacheline size. Replace the MVNETA_CPU_D_CACHE_LINE_SIZE
usage with L1_CACHE_BYTES.

And since dma_alloc_coherent() is always cacheline size aligned, so
remove the align checks.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-31 15:15:01 -04:00
Jisheng Zhang
b7854efce2 net: mvpp2: replace MVPP2_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTES
The mvpp2 ip maybe used in SoCs which may have have 64bytes cacheline
size. Replace the MVPP2_CPU_D_CACHE_LINE_SIZE with L1_CACHE_BYTES.

And since dma_alloc_coherent() is always cacheline size aligned, so
remove the align checks.

Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-31 15:15:01 -04:00
Patrick Uiterwijk
13a7ebb38a net: dsa: mv88e6xxx: Clear the PDOWN bit on setup
Some of the vendor-specific bootloaders set up this part
of the initialization for us, so this was never added.
However, since upstream bootloaders don't initialize the
chip specifically, they leave the fiber MII's PDOWN flag
set, which means that the CPU port doesn't connect.

This patch checks whether this flag has been clear prior
by something else, and if not make us clear it.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Patrick Uiterwijk <patrick@puiterwijk.org>
Tested-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-31 15:12:57 -04:00
Patrick Uiterwijk
75baacf00f net: dsa: mv88e6xxx: Introduce _mv88e6xxx_phy_page_{read, write}
Add versions of the phy_page_read and _write functions to
be used in a context where the SMI mutex is held.

Tested-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Patrick Uiterwijk <patrick@puiterwijk.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-31 15:12:57 -04:00
David S. Miller
4833a0096a Merge branch '10GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net-queue
Jeff Kirsher says:

====================
Intel Wired LAN Driver Updates 2016-03-29

This series contains fixes to ixgbe and ixgbevf.

Tushar fixes an issue which was introduced with an earlier commit, where
hardware register RAR0 default MAC address does not get set properly.

Alex fixes two issues, first being the VXLAN port number should be stored
in network order instead of in host order.  The second fix corrects the ATR
code to handle IPv6 extension headers.  The issue was ATR code was assuming
that it would be able to use tcp_hdr for every TCP frame that came through,
but that is not the case, which resulted in bad filters being setup.

Mark fixes a use of usleep_range() to udelay() in the case where a lock
is being held.

Stefan fixes the offline self tests where ndo_stop() should be used instead
of ndo_close(), which causes IFF_UP to be cleared and interface routes get
removed.

Emil fixes the error case where we need to return an error when a MAC
address change is rejected by the PF.  This helps prevent the user from
modifying the MAC address when the operation is not permitted.

Sridhar provides three fixes for ixgbe, all dealing with traffic class
offload handling.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-31 11:40:16 -04:00
Michael Chan
3c02d1bb32 bnxt_en: Fix ethtool -a reporting.
To report flow control tx/rx settings accurately regardless of autoneg
setting, we should use link_info->req_flow_ctrl.  Before this patch,
the reported settings were only correct when autoneg was on.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-30 19:01:33 -04:00
Michael Chan
49b5c7a125 bnxt_en: Fix typo in bnxt_hwrm_set_pause_common().
The typo caused the wrong flow control bit to be set.

Reported by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-30 19:01:33 -04:00
Michael Chan
e6ef26991a bnxt_en: Implement proper firmware message padding.
The size of every padded firmware message is specified in the first
HWRM_VER_GET response message.  Use this value to pad every message
after that.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-30 19:01:32 -04:00
Prashant Sreedharan
33e52d888d bnxt_en: Initialize CP doorbell value before ring allocation
The existing code does the following:
    allocate completion ring
    initialize completion ring doorbell
    disable interrupts on this completion ring by writing to the doorbell

We can have a race where firmware sends an asynchronous event to the host
after completion ring allocation and before doorbell is initialized.
When this happens driver can crash while ringing the doorbell using
uninitialized value as part of handling the IRQ/napi request.

Signed-off-by: Prashant Sreedharan <prashant.sreedharan@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-30 19:01:32 -04:00
Xin Long
cb41c997d4 team: team should sync the port's uc/mc addrs when add a port
There is an issue when we use mavtap over team:
When we replug nic links from team0, the real nics's mc list will not
include the maddr for macvtap any more. then we can't receive pkts to
macvtap device, as they are filterred by mc list of nic.

In Bonding Driver, it syncs the uc/mc addrs in bond_enslave().

We will fix this issue on team by adding the port's uc/mc addrs sync in
team_port_add.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-30 17:06:58 -04:00
Colin Ian King
fea24857bb qed: initialize return rc to avoid returning garbage
in the case where qed_slowpath_irq_req is not called, rc is not
assigned and so qed_int_igu_enable will return a garbage value.
Fix this by initializing rc to 0.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-30 15:48:15 -04:00
Sridhar Samudrala
b5aea3de88 ixgbe: Fix cls_u32 offload support for L4 ports
Fix support for 16 bit source/dest port matches in ixgbe model.
u32 uses a single 32-bit key value for both source and destination ports
starting at offset 0. So replace the 2 functions with a single function
that takes this key value/mask to program both source and dest ports.

Verified with the following filter:

 #tc qdisc add dev p4p1 ingress
 #tc filter add dev p4p1 parent ffff: protocol ip prio 99 \
	handle 1: u32 divisor 1
 #tc filter add dev p4p1 parent ffff: protocol ip prio 99 \
	handle 800:0:10 u32 ht 800: link 1: \
	offset at 0 mask 0f00 shift 6 plus 0 eat match ip protocol 6 ff
 #tc filter add dev p4p1 parent ffff: protocol ip prio 99 \
	handle 1:0:10 u32 ht 1: \
	match tcp src 1024 ffff match tcp dst 80 ffff action drop
 #tc filter add dev p4p1 parent ffff: protocol ip prio 99 \
	handle 1:0:11 u32 ht 1: \
	match tcp src 1025 ffff action drop
 #tc filter add dev p4p1 parent ffff: protocol ip prio 99 \
	handle 1:0:12 u32 ht 1: \
	match tcp dst 81 ffff action drop

Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-03-29 23:23:04 -07:00
Sridhar Samudrala
ebd83ad818 ixgbe: Fix cls_u32 offload support for fields with masks
Remove the incorrect check for mask in ixgbe_configure_clsu32 and
drop the 'mask' field that is not required in struct ixgbe_mat_field

Verified with the following filters:

 #tc qdisc add dev p4p1 ingress
 #tc filter add dev p4p1 parent ffff: protocol ip prio 99 \
	handle 800:0:1 u32 ht 800: \
	match ip dst 10.0.0.1/8 match ip src 10.0.0.2/8 action drop
 #tc filter add dev p4p1 parent ffff: protocol ip prio 99 \
	handle 800:0:2 u32 ht 800: \
	match ip dst 11.0.0.1/16 match ip src 11.0.0.2/16 action drop
 #tc filter add dev p4p1 parent ffff: protocol ip prio 99 \
	handle 800:0:3 u32 ht 800: \
	match ip dst 12.0.0.1/24 match ip src 12.0.0.2/24 action drop
 #tc filter add dev p4p1 parent ffff: protocol ip prio 99 \
	handle 800:0:4 u32 ht 800: \
	match ip dst 13.0.0.1/32 match ip src 13.0.0.2/32 action drop

Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-03-29 23:12:30 -07:00
Sridhar Samudrala
176621c964 ixgbe: fix error handling in TC cls_u32 offload routines
Check for handle ids when adding/deleting hash nodes OR adding/deleting
filter entries and limit them to max number of links or header nodes
supported(IXGBE_MAX_LINK_HANDLE).

Start from bit 0 when setting hash table bit-map.(adapter->tables)

Signed-off-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-03-29 23:05:51 -07:00
Emil Tantilov
6e2a60b57a ixgbe: make __ixgbe_setup_tc static
This function is only used in ixgbe_main.c
Resolves a "missing prototype" warning when building the driver with W=1

Reported-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-03-29 22:57:32 -07:00
Emil Tantilov
32ca686835 ixgbevf: fix error code path when setting MAC address
Return error when a MAC address change is rejected by the PF.

This will prevent the user from modifying the MAC address when
that operation is not permitted.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-03-29 22:53:42 -07:00
Stefan Assmann
324d086709 ixgbevf: call ndo_stop() instead of dev_close() when running offline selftest
Calling dev_close() causes IFF_UP to be cleared which will remove the
interfaces routes and some addresses. That's probably not what the user
intended when running the offline selftest. Besides this does not happen
if the interface is brought down before the test, so the current
behaviour is inconsistent.
Instead call the net_device_ops ndo_stop function directly and avoid
touching IFF_UP at all.

Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-03-29 22:45:04 -07:00
Stefan Assmann
6c211fe1e7 ixgbe: call ndo_stop() instead of dev_close() when running offline selftest
Calling dev_close() causes IFF_UP to be cleared which will remove the
interfaces routes and some addresses. That's probably not what the user
intended when running the offline selftest. Besides this does not happen
if the interface is brought down before the test, so the current
behaviour is inconsistent.
Instead call the net_device_ops ndo_stop function directly and avoid
touching IFF_UP at all.

Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-03-29 22:41:33 -07:00
Mark Rustad
d90b5b0ec1 ixgbe: Use udelay to avoid sleeping while atomic
Use udelay instead of usleep_range because this can be called while
a lock is held.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-03-29 22:37:17 -07:00
Alexander Duyck
e2873d43f9 ixgbe: Fix ATR so that it correctly handles IPv6 extension headers
The ATR code was assuming that it would be able to use tcp_hdr for
every TCP frame that came through.  However this isn't the case as it
is possible for a frame to arrive that is TCP but sent through something
like a raw socket.  As a result the driver was setting up bad filters in
which tcp_hdr was really pointing to the network header so the data was
all invalid.

In order to correct this I have added a bit of parsing logic that will
determine the TCP header location based off of the network header and
either the offset in the case of the IPv4 header, or a walk through the
IPv6 extension headers until it encounters the header that indicates
IPPROTO_TCP.  In addition I have added checks to verify that the lowest
protocol provided is recognized as IPv4 or IPv6 to help mitigate raw
sockets using ETH_P_ALL from having ATR applied to them.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-03-29 22:32:33 -07:00
Alexander Duyck
9f12df906c ixgbe: Store VXLAN port number in network order
The VXLAN port number should be stored in network order instead of in host
order as it is accessed from the hot-path in ATR.  This way we can avoid
having to do any byte swaps in order to validate the port number.

I moved the vxlan_port value into a hole in the read-mostly region of the
adapter struct.  This way it should be in a warm cache-line instead of in
some isolated region in memory when it needs to be accessed.

In addition I went through and stripped a bunch of unneeded ifdef flags
since having an extra variable present doesn't really hurt anything and
makes the code easier to read.  I also went through and dropped the
NETIF_F_RXCSUM flag which was being set in hw_encap_features but provides
no value as the flag is not evaluated in the Rx path.

Signed-off-by: Alexander Duyck <aduyck@mirantis.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-03-29 22:24:16 -07:00
Tushar Dave
5676804518 ixgbe: Fix for RAR0 not being set to default MAC addr
commit c9f53e63c2 ("ixgbe: Refactor MAC address configuration code")
introduced code that doesn't set HW register RAR0 to default mac address
but FF:FF:FF:FF:FF:FF. Due to this, ixgbe HW discards all incoming packets
that doesn't have destination mac address equals to FF:FF:FF:FF:FF:FF.

This commit sets RAR0 correctly to default HW mac address.

Signed-off-by: Tushar Dave <tushar.n.dave@oracle.com>
Tested-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2016-03-29 22:06:50 -07:00
Bjørn Mork
e84810c7b8 qmi_wwan: add "D-Link DWM-221 B1" device id
Thomas reports:
"Windows:

00 diagnostics
01 modem
02 at-port
03 nmea
04 nic

Linux:

T:  Bus=02 Lev=01 Prnt=01 Port=03 Cnt=01 Dev#=  4 Spd=480 MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=2001 ProdID=7e19 Rev=02.32
S:  Manufacturer=Mobile Connect
S:  Product=Mobile Connect
S:  SerialNumber=0123456789ABCDEF
C:  #Ifs= 6 Cfg#= 1 Atr=a0 MxPwr=500mA
I:  If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option
I:  If#= 1 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
I:  If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan
I:  If#= 5 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage"

Reported-by: Thomas Schäfer <tschaefer@t-online.de>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-28 20:12:01 -04:00
Charles Keepax
0e3e799970 net: macb: Only call GPIO functions if there is a valid GPIO
GPIOlib will print warning messages if we call GPIO functions without a
valid GPIO. Change the code to avoid doing so.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-28 11:39:16 -04:00
Lisheng
9832ce4c0b net: hns: set-coalesce-usecs returns errno by dsaf.ko
It may fail to set coalesce usecs to HW, and Ethtool needs to know if it
is successful to cfg the parameter or not. So it needs return the errno by
dsaf.ko.

Signed-off-by: Lisheng <lisheng011@huawei.com>
Signed-off-by: Yisen Zhuang <Yisen.Zhuang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-28 11:39:16 -04:00
Lisheng
43adc067c5 net: hns: fixed the setting and getting overtime bug
The overtime setting and getting REGs in HNS V2 is defferent from HNS V1.
It needs to be distinguished between them if getting or setting the REGs.

Signed-off-by: Lisheng <lisheng011@huawei.com>
Signed-off-by: Yisen Zhuang <Yisen.Zhuang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-28 11:39:16 -04:00
Lino Sanfilippo
d7be81a591 ravb: fix software timestamping
In ravb_start_xmit dont call skb_tx_timestamp only when hardware
timestamping is requested: in the latter case software timestamps are
suppressed and thus the call of skb_tx_timestamp does not have any effect.

Instead call skb_tx_timestamp unconditionally in ravb_start_xmit, since
the function checks itself if software timestamping is required or should
be skipped due to hardware timestamping.

Signed-off-by: Lino Sanfilippo <LinoSanfilippo@gmx.de>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-27 22:41:37 -04:00
Rasmus Villemoes
79c134239d net: sxgbe: fix error paths in sxgbe_platform_probe()
We need to use post-decrement to ensure that irq_dispose_mapping is
also called on priv->rxq[0]->irq_no; moreover, if one of the above for
loops failed already at i==0 (so we reach one of these labels with
that value of i), we'll enter an essentially infinite loop of
out-of-bounds accesses.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Reviewed-by: Francois Romieu <romieu@fr.zoreil.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-27 22:39:22 -04:00
Diego Viola
a69f0e281d drivers/net/usb/plusb.c: Fix typo
Signed-off-by: Diego Viola <diego.viola@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-27 22:33:56 -04:00
Cyrille Pitchen
9ba723b081 net: macb: remove BUG_ON() and reset the queue to handle RX errors
This patch removes two BUG_ON() used to notify about RX queue corruptions
on macb (not gem) hardware without actually handling the error.

The new code skips corrupted frames but still processes faultless frames.
Then it resets the RX queue before restarting the reception from a clean
state.

This patch is a rework of an older patch proposed by Neil Armstrong:
http://patchwork.ozlabs.org/patch/371525/

Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-25 11:44:08 -04:00
Manish Chopra
d31fecd1af qlge: Update version to 1.00.00.35
Just updating version as many fixes got
accumulated over 1.00.00.34

Signed-off-by: Manish Chopra <manish.chopra@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-25 11:41:08 -04:00
Jaedon Shin
4cef191d05 net: phy: bcm7xxx: Add entries for Broadcom BCM7346 and BCM7362
Add PHY entries for the Broadcom BCM7346 and BCM7362 chips, these are
40nm generation Ethernet PHY.

Fixes: 815717d147 ("net: phy: bcm7xxx: Remove wildcard entries")
Signed-off-by: Jaedon Shin <jaedon.shin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-25 11:37:57 -04:00
Petri Gynther
7dd399130e net: bcmgenet: fix skb_len in bcmgenet_xmit_single()
skb_len needs to be skb_headlen(skb) in bcmgenet_xmit_single().

Fragmented skbs can have only Ethernet + IP + TCP headers (14+20+20=54 bytes)
in the linear buffer, followed by the rest in fragments. Bumping skb_len to
ETH_ZLEN would be incorrect for this case, as it would introduce garbage
between TCP header and the fragment data.

This also works with regular/non-fragmented small packets < ETH_ZLEN bytes.
Successfully tested this on GENETv3 with 42-byte ARP frames.

For testing, I used:
ethtool -K eth0 tx-checksum-ipv4 off
ethtool -K eth0 tx-checksum-ipv6 off
echo 0 > /proc/sys/net/ipv4/tcp_timestamps

Fixes: 1c1008c793 ("net: bcmgenet: add main driver file")
Signed-off-by: Petri Gynther <pgynther@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-24 15:11:40 -04:00
Petri Gynther
55868120a3 net: bcmgenet: fix dev->stats.tx_bytes accounting
1. Add bytes_compl local variable to __bcmgenet_tx_reclaim() to collect
   transmitted bytes. dev->stats updates can then be moved outside the
   while-loop. bytes_compl is also needed for future BQL support.
2. When bcmgenet device uses Tx checksum offload, each transmitted skb
   gets an extra 64-byte header prepended to it. Before this header is
   prepended to the skb, we need to save the skb "wire" length in
   GENET_CB(skb)->bytes_sent, so that proper Tx bytes accounting can
   be done in __bcmgenet_tx_reclaim().
3. skb->len covers the entire length of skb, whether it is linear or
   fragmented. Thus, when we clean the fragments, do not increase
   transmitted bytes.

Fixes: 1c1008c793 ("net: bcmgenet: add main driver file")
Signed-off-by: Petri Gynther <pgynther@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-24 15:11:39 -04:00
Cyrille Pitchen
ba50499454 net: macb: replace macb_writel() call by queue_writel() to update queue ISR
macb_interrupt() should not use macb_writel(bp, ISR, <value>) but only
queue_writel(queue, ISR, <value>).

There is one IRQ and one set of {ISR, IER, IDR, IMR} [1] registers per
queue on gem hardware, though only queue0 is actually used for now to
receive frames: other queues can already be used to transmit frames.

The queue_readl() and queue_writel() helper macros are designed to access
the relevant IRQ registers.

[1]
ISR: Interrupt Status Register
IER: Interrupt Enable Register
IDR: Interrupt Disable Register
IMR: Interrupt Mask Register

Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Fixes: bfbb92c446 ("net: macb: Handle the RXUBR interrupt on all devices")
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-24 14:50:31 -04:00
Sheng Li
c1203fe7bb net: hns: bug fix about getting hilink status for HNS v2
The hilink status reg in HNS V2 is different from HNS v1. In HNS V2, It
distinguishes differnt lane status according to the bit-field of the reg.
As is shown below:
[0:0] ---> lane0
[1:1] ---> lane1
...

But the current driver reads the reg to get the hilink status ONLY
concidering HNS V1 situation. Here is a patch to support both of them.

Signed-off-by: Sheng Li <lisheng011@huawei.com>
Signed-off-by: Daode Huang <huangdaode@hisilicon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-24 14:33:07 -04:00
Kejian Yan
daa8cfd9da net: hns: fix warning of passing zero to 'PTR_ERR'
There is a misuse of PTR as shown below:

	ae_node = (void *)of_parse_phandle(dev->of_node,
					   "ae-handle",
					   0);
	if (IS_ERR_OR_NULL(ae_node)) {
		ret = PTR_ERR(ae_node);
		dev_err(dev, "not find ae-handle\n");
		goto out_read_prop_fail;
	}

if the ae_node is NULL, PTR_ERR(ae_node) means it returns success. And the
return value should be -ENODEV.

Signed-off-by: Kejian Yan <yankejian@huawei.com>
Signed-off-by: Yisen Zhuang <Yisen.Zhuang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-24 14:33:07 -04:00
Sheng Li
4b34aa412c net: hns: optimizate irq proccess for HNS V2
In hns V1, common_poll should check and clean fbd pkts, because it
can not pend irq to clean them if there is no new pkt comes in.
But hns V2 hw fixes this bug, and will pend irq itself to do this.
So, for hns V2, we set ring_data->fini_process to NULL.

Signed-off-by: Sheng Li <lisheng011@huawei.com>
Signed-off-by: Yisen Zhuang <Yisen.Zhuang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-24 14:33:07 -04:00
Qianqian Xie
1c3bae6e47 net: hns: remove useless variable assignment and comment
The variable head in hns_nic_tx_fini_pro has read a value, but it is
obviously no use. The patch will fix it.
And the comment is nothing to do with the routine, so it has to be removed

Signed-off-by: Qianqian Xie <xieqianqian@huawei.com>
Signed-off-by: Yisen Zhuang <Yisen.Zhuang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-24 14:33:06 -04:00
Qianqian Xie
055a94177d net: hns: bug fix for return values
The return values in the first two functions mdiobus_write()
are ignored. The patch will fix it.

Signed-off-by: Qianqian Xie <xieqianqian@huawei.com>
Signed-off-by: Yisen Zhuang <Yisen.Zhuang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-24 14:33:06 -04:00
Qianqian Xie
8d71397bd2 net: hns: optimizate fmt of snprintf()
It misses string format in function snprintf(), as below:
snprintf(buff, ETH_GSTRING_LEN, g_gmac_stats_string[i].desc);

It needs to add "%s" to fix it as below:
snprintf(buff, ETH_GSTRING_LEN, "%s", g_gmac_stats_string[i].desc);

Signed-off-by: Qianqian Xie <xieqianqian@huawei.com>
Signed-off-by: Kejian Yan <yankejian@huawei.com>
Signed-off-by: Yisen Zhuang <Yisen.Zhuang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-24 14:33:06 -04:00
Qianqian Xie
5261312622 net: hns: fix a bug for cycle index
The cycle index should be varied while the variable j is a fixed value.
The patch will fix this bug.

Signed-off-by: Qianqian Xie <xieqianqian@huawei.com>
Signed-off-by: Yisen Zhuang <Yisen.Zhuang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-24 14:33:06 -04:00
Linus Torvalds
aca04ce5db Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking bugfixes from David Miller:
 "Several bug fixes rolling in, some for changes introduced in this
  merge window, and some for problems that have existed for some time:

  1) Fix prepare_to_wait() handling in AF_VSOCK, from Claudio Imbrenda.

  2) The new DST_CACHE should be a silent config option, from Dave
     Jones.

  3) inet_current_timestamp() unintentionally truncates timestamps to
     16-bit, from Deepa Dinamani.

  4) Missing reference to netns in ppp, from Guillaume Nault.

  5) Free memory reference in hv_netvsc driver, from Haiyang Zhang.

  6) Missing kernel doc documentation for function arguments in various
     spots around the networking, from Luis de Bethencourt.

  7) UDP stopped receiving broadcast packets properly, due to
     overzealous multicast checks, fix from Paolo Abeni"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (59 commits)
  net: ping: make ping_v6_sendmsg static
  hv_netvsc: Fix the order of num_sc_offered decrement
  net: Fix typos and whitespace.
  hv_netvsc: Fix the array sizes to be max supported channels
  hv_netvsc: Fix accessing freed memory in netvsc_change_mtu()
  ppp: take reference on channels netns
  net: Reset encap_level to avoid resetting features on inner IP headers
  net: mediatek: fix checking for NULL instead of IS_ERR() in .probe
  net: phy: at803x: Request 'reset' GPIO only for AT8030 PHY
  at803x: fix reset handling
  AF_VSOCK: Shrink the area influenced by prepare_to_wait
  Revert "vsock: Fix blocking ops call in prepare_to_wait"
  macb: fix PHY reset
  ipv4: initialize flowi4_flags before calling fib_lookup()
  fsl/fman: Workaround for Errata A-007273
  ipv4: fix broadcast packets reception
  net: hns: bug fix about the overflow of mss
  net: hns: adds limitation for debug port mtu
  net: hns: fix the bug about mtu setting
  net: hns: fixes a bug of RSS
  ...
2016-03-23 23:25:14 -07:00
Haiyang Zhang
3f735131d9 hv_netvsc: Fix the order of num_sc_offered decrement
Reorder the code in netvsc_sc_open(), so num_sc_offered is only decremented
after vmbus_open() is called. This avoid pontential race of removing device
before all channels are setup.

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-23 21:51:08 -04:00
Linus Torvalds
ed7d6bc23b Merge branch 'for-next-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull more SCSI target updates from Nicholas Bellinger:
 "This series contains cxgb4 driver prerequisites for supporting iscsi
  segmentation offload (ISO), that will be utilized for a number of
  future v4.7 developments in iscsi-target for supporting generic hw
  offloads"

* 'for-next-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  cxgb4: update Kconfig and Makefile
  cxgb4: add iSCSI DDP page pod manager
  cxgb4, iw_cxgb4: move delayed ack macro definitions
  cxgb4: move VLAN_NONE macro definition
  cxgb4: update struct cxgb4_lld_info definition
  cxgb4: add definitions for iSCSI target ULD
  cxgb4, cxgb4i: move struct cpl_rx_data_ddp definition
  cxgb4, iw_cxgb4, cxgb4i: remove duplicate definitions
  cxgb4, iw_cxgb4: move definitions to common header file
  cxgb4: large receive offload support
  cxgb4: allocate resources for CXGB4_ULD_ISCSIT
  cxgb4: add new ULD type CXGB4_ULD_ISCSIT
2016-03-23 15:57:39 -07:00
Haiyang Zhang
9efc2f7dcd hv_netvsc: Fix the array sizes to be max supported channels
The VRSS_CHANNEL_MAX is the max number of channels supported by Hyper-V
hosts. We use it for the related array sizes instead of using NR_CPUS,
which may be set to several thousands.
This patch reduces possible memory allocation failures.

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-23 14:38:55 -04:00
Haiyang Zhang
d212b4633c hv_netvsc: Fix accessing freed memory in netvsc_change_mtu()
struct netvsc_device is freed in rndis_filter_device_remove(). So we save
the nvdev->num_chn into a temp variable for later usage.

(Please also include this patch into stable branch.)

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Reviewed-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-23 14:38:55 -04:00
Guillaume Nault
1f461dcdd2 ppp: take reference on channels netns
Let channels hold a reference on their network namespace.
Some channel types, like ppp_async and ppp_synctty, can have their
userspace controller running in a different namespace. Therefore they
can't rely on them to preclude their netns from being removed from
under them.

==================================================================
BUG: KASAN: use-after-free in ppp_unregister_channel+0x372/0x3a0 at
addr ffff880064e217e0
Read of size 8 by task syz-executor/11581
=============================================================================
BUG net_namespace (Not tainted): kasan: bad access detected
-----------------------------------------------------------------------------

Disabling lock debugging due to kernel taint
INFO: Allocated in copy_net_ns+0x6b/0x1a0 age=92569 cpu=3 pid=6906
[<      none      >] ___slab_alloc+0x4c7/0x500 kernel/mm/slub.c:2440
[<      none      >] __slab_alloc+0x4c/0x90 kernel/mm/slub.c:2469
[<     inline     >] slab_alloc_node kernel/mm/slub.c:2532
[<     inline     >] slab_alloc kernel/mm/slub.c:2574
[<      none      >] kmem_cache_alloc+0x23a/0x2b0 kernel/mm/slub.c:2579
[<     inline     >] kmem_cache_zalloc kernel/include/linux/slab.h:597
[<     inline     >] net_alloc kernel/net/core/net_namespace.c:325
[<      none      >] copy_net_ns+0x6b/0x1a0 kernel/net/core/net_namespace.c:360
[<      none      >] create_new_namespaces+0x2f6/0x610 kernel/kernel/nsproxy.c:95
[<      none      >] copy_namespaces+0x297/0x320 kernel/kernel/nsproxy.c:150
[<      none      >] copy_process.part.35+0x1bf4/0x5760 kernel/kernel/fork.c:1451
[<     inline     >] copy_process kernel/kernel/fork.c:1274
[<      none      >] _do_fork+0x1bc/0xcb0 kernel/kernel/fork.c:1723
[<     inline     >] SYSC_clone kernel/kernel/fork.c:1832
[<      none      >] SyS_clone+0x37/0x50 kernel/kernel/fork.c:1826
[<      none      >] entry_SYSCALL_64_fastpath+0x16/0x7a kernel/arch/x86/entry/entry_64.S:185

INFO: Freed in net_drop_ns+0x67/0x80 age=575 cpu=2 pid=2631
[<      none      >] __slab_free+0x1fc/0x320 kernel/mm/slub.c:2650
[<     inline     >] slab_free kernel/mm/slub.c:2805
[<      none      >] kmem_cache_free+0x2a0/0x330 kernel/mm/slub.c:2814
[<     inline     >] net_free kernel/net/core/net_namespace.c:341
[<      none      >] net_drop_ns+0x67/0x80 kernel/net/core/net_namespace.c:348
[<      none      >] cleanup_net+0x4e5/0x600 kernel/net/core/net_namespace.c:448
[<      none      >] process_one_work+0x794/0x1440 kernel/kernel/workqueue.c:2036
[<      none      >] worker_thread+0xdb/0xfc0 kernel/kernel/workqueue.c:2170
[<      none      >] kthread+0x23f/0x2d0 kernel/drivers/block/aoe/aoecmd.c:1303
[<      none      >] ret_from_fork+0x3f/0x70 kernel/arch/x86/entry/entry_64.S:468
INFO: Slab 0xffffea0001938800 objects=3 used=0 fp=0xffff880064e20000
flags=0x5fffc0000004080
INFO: Object 0xffff880064e20000 @offset=0 fp=0xffff880064e24200

CPU: 1 PID: 11581 Comm: syz-executor Tainted: G    B           4.4.0+
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
rel-1.8.2-0-g33fbe13 by qemu-project.org 04/01/2014
 00000000ffffffff ffff8800662c7790 ffffffff8292049d ffff88003e36a300
 ffff880064e20000 ffff880064e20000 ffff8800662c77c0 ffffffff816f2054
 ffff88003e36a300 ffffea0001938800 ffff880064e20000 0000000000000000
Call Trace:
 [<     inline     >] __dump_stack kernel/lib/dump_stack.c:15
 [<ffffffff8292049d>] dump_stack+0x6f/0xa2 kernel/lib/dump_stack.c:50
 [<ffffffff816f2054>] print_trailer+0xf4/0x150 kernel/mm/slub.c:654
 [<ffffffff816f875f>] object_err+0x2f/0x40 kernel/mm/slub.c:661
 [<     inline     >] print_address_description kernel/mm/kasan/report.c:138
 [<ffffffff816fb0c5>] kasan_report_error+0x215/0x530 kernel/mm/kasan/report.c:236
 [<     inline     >] kasan_report kernel/mm/kasan/report.c:259
 [<ffffffff816fb4de>] __asan_report_load8_noabort+0x3e/0x40 kernel/mm/kasan/report.c:280
 [<     inline     >] ? ppp_pernet kernel/include/linux/compiler.h:218
 [<ffffffff83ad71b2>] ? ppp_unregister_channel+0x372/0x3a0 kernel/drivers/net/ppp/ppp_generic.c:2392
 [<     inline     >] ppp_pernet kernel/include/linux/compiler.h:218
 [<ffffffff83ad71b2>] ppp_unregister_channel+0x372/0x3a0 kernel/drivers/net/ppp/ppp_generic.c:2392
 [<     inline     >] ? ppp_pernet kernel/drivers/net/ppp/ppp_generic.c:293
 [<ffffffff83ad6f26>] ? ppp_unregister_channel+0xe6/0x3a0 kernel/drivers/net/ppp/ppp_generic.c:2392
 [<ffffffff83ae18f3>] ppp_asynctty_close+0xa3/0x130 kernel/drivers/net/ppp/ppp_async.c:241
 [<ffffffff83ae1850>] ? async_lcp_peek+0x5b0/0x5b0 kernel/drivers/net/ppp/ppp_async.c:1000
 [<ffffffff82c33239>] tty_ldisc_close.isra.1+0x99/0xe0 kernel/drivers/tty/tty_ldisc.c:478
 [<ffffffff82c332c0>] tty_ldisc_kill+0x40/0x170 kernel/drivers/tty/tty_ldisc.c:744
 [<ffffffff82c34943>] tty_ldisc_release+0x1b3/0x260 kernel/drivers/tty/tty_ldisc.c:772
 [<ffffffff82c1ef21>] tty_release+0xac1/0x13e0 kernel/drivers/tty/tty_io.c:1901
 [<ffffffff82c1e460>] ? release_tty+0x320/0x320 kernel/drivers/tty/tty_io.c:1688
 [<ffffffff8174de36>] __fput+0x236/0x780 kernel/fs/file_table.c:208
 [<ffffffff8174e405>] ____fput+0x15/0x20 kernel/fs/file_table.c:244
 [<ffffffff813595ab>] task_work_run+0x16b/0x200 kernel/kernel/task_work.c:115
 [<     inline     >] exit_task_work kernel/include/linux/task_work.h:21
 [<ffffffff81307105>] do_exit+0x8b5/0x2c60 kernel/kernel/exit.c:750
 [<ffffffff813fdd20>] ? debug_check_no_locks_freed+0x290/0x290 kernel/kernel/locking/lockdep.c:4123
 [<ffffffff81306850>] ? mm_update_next_owner+0x6f0/0x6f0 kernel/kernel/exit.c:357
 [<ffffffff813215e6>] ? __dequeue_signal+0x136/0x470 kernel/kernel/signal.c:550
 [<ffffffff8132067b>] ? recalc_sigpending_tsk+0x13b/0x180 kernel/kernel/signal.c:145
 [<ffffffff81309628>] do_group_exit+0x108/0x330 kernel/kernel/exit.c:880
 [<ffffffff8132b9d4>] get_signal+0x5e4/0x14f0 kernel/kernel/signal.c:2307
 [<     inline     >] ? kretprobe_table_lock kernel/kernel/kprobes.c:1113
 [<ffffffff8151d355>] ? kprobe_flush_task+0xb5/0x450 kernel/kernel/kprobes.c:1158
 [<ffffffff8115f7d3>] do_signal+0x83/0x1c90 kernel/arch/x86/kernel/signal.c:712
 [<ffffffff8151d2a0>] ? recycle_rp_inst+0x310/0x310 kernel/include/linux/list.h:655
 [<ffffffff8115f750>] ? setup_sigcontext+0x780/0x780 kernel/arch/x86/kernel/signal.c:165
 [<ffffffff81380864>] ? finish_task_switch+0x424/0x5f0 kernel/kernel/sched/core.c:2692
 [<     inline     >] ? finish_lock_switch kernel/kernel/sched/sched.h:1099
 [<ffffffff81380560>] ? finish_task_switch+0x120/0x5f0 kernel/kernel/sched/core.c:2678
 [<     inline     >] ? context_switch kernel/kernel/sched/core.c:2807
 [<ffffffff85d794e9>] ? __schedule+0x919/0x1bd0 kernel/kernel/sched/core.c:3283
 [<ffffffff81003901>] exit_to_usermode_loop+0xf1/0x1a0 kernel/arch/x86/entry/common.c:247
 [<     inline     >] prepare_exit_to_usermode kernel/arch/x86/entry/common.c:282
 [<ffffffff810062ef>] syscall_return_slowpath+0x19f/0x210 kernel/arch/x86/entry/common.c:344
 [<ffffffff85d88022>] int_ret_from_sys_call+0x25/0x9f kernel/arch/x86/entry/entry_64.S:281
Memory state around the buggy address:
 ffff880064e21680: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff880064e21700: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff880064e21780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                       ^
 ffff880064e21800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff880064e21880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================

Fixes: 273ec51dd7 ("net: ppp_generic - introduce net-namespace functionality v2")
Reported-by: Baozeng Ding <sploving1@gmail.com>
Signed-off-by: Guillaume Nault <g.nault@alphalink.fr>
Reviewed-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-23 14:35:31 -04:00
Vladimir Zapolskiy
621e49f6d8 net: mediatek: fix checking for NULL instead of IS_ERR() in .probe
devm_ioremap_resource() returns ERR_PTR() value on error, it never
returns NULL, fix it and propagate the returned error upwards.

Fixes: 656e705243 ("net-next: mediatek: add support for MT7623 ethernet")
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
Reviewed-by: Matthias Brugger <mbrugger@suse.com>
Acked-by: John Crispin <blogic@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-23 13:49:13 -04:00
Sebastian Frias
9eb13f65c3 net: phy: at803x: Request 'reset' GPIO only for AT8030 PHY
This removes the dependency on GPIOLIB for non faulty PHYs.

Indeed, without this patch, if GPIOLIB is not selected
devm_gpiod_get_optional() will return -ENOSYS and the driver probe
call will fail, regardless of the actual PHY hardware.

Out of the 3 PHYs supported by this driver (AT8030, AT8031, AT8035),
only AT8030 presents the issues that commit 13a56b4493 ("net: phy:
at803x: Add support for hardware reset") attempts to work-around by
using a 'reset' GPIO line.

Hence, only AT8030 should depend on GPIOLIB operating properly.

Fixes: 13a56b4493 ("net: phy: at803x: Add support for hardware reset")

Signed-off-by: Sebastian Frias <sf84@laposte.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-03-23 13:39:25 -04:00