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This is preparation for using the generic netdev features interface,
and should have no effect in itself.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
With current bnx2x firmware 6.2.9, iSCSI is not supported in DCB
network, so we need to disable it. Add cnic command to disconnect
iSCSI connections and prevent future connections when DCBX negotiation
succeeds.
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We could get hardware attention during DCB/FCoE traffic without this
fix.
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
To fix bugs when running offloaded FCoE/iSCSI traffic in multiple
Class of Service environments. In some scenarios, traffic could stop
on certain rings and eventually all traffic would stop.
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We should reduce the number of reserved completion queues from the total
number of entries. Since the queue size is power of two, not reducing the
reserved entries, caused a double queue size, which may lead to allocation
failures in some cases.
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
In case of allocation failure, tried to use the promiscuous QP
entry that was previously freed.
Now freeing this entry only in case we will not put it back to the list
of promiscuous entries.
Reported-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
The IRQF_SAMPLE_RANDOM flag is marked as deprecated and will be removed.
Every input point to the kernel's entropy pool have to better document the
type of entropy source it is.
drivers/char/random.c now implements a set of interfaces that can be used for
devices to collect enviromental noise. IRQF_SAMPLE_RANDOM will be replaced
with these add_*_randomness exported functions.
Network drivers are not a good source of entropy. They use as a source of
entropy essentially a remote host. Which means that the source of entropy can
be potentially controlled by an attacker. Also, with heavy workloads the
entropy decreases due to less hardware interrupts happening thanks to irq
mitigation and NAPI.
If a system relies in its network interface as a entropy source it has a false
sense of security. Systems that don't have devices whose drivers are good
sources of entropy, should either use a hardware random number generator or
feed the kernel's entropy pool from userspace using other sources of entropy
such as EGD, video_entropyd, timer_entropyd and audio-entropyd.
Signed-off-by: Javier Martinez Canillas <martinez.javier@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Current enic code only supports ASSOCIATE and DISASSOCIATE port profile
operations. This patch adds enic support for port profile
PORT_REQUEST_PREASSOCIATE_RR operation. The VIC adapter (8021qbh) is capable
of handling port profile requests done in two steps namely PREASSOCIATE_RR
and ASSOCIATE today. The motivation to support PREASSOCIATE_RR comes mainly
from its use as an optimization during VM migration ie, to do resource
reservation on destination host before resources on source host are released.
PREASSOCIATE_RR is a VDP operation and according to the latest at IEEE,
8021qbh will also need to support VDP commands.
In addition to handling the new PORT_REQUEST_PREASSOCIATE_RR operation
this patch also does the below:
- Introduces handlers for PORT_REQUEST operations
- Moves most of the port profile handling code to new files enic_pp.[ch]
- Uses new fw devcmds for port profile operations
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
Signed-off-by: David Wang <dwang2@cisco.com>
Signed-off-by: Christian Benvenuti <benve@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch does the following:
- Introduces a new macro VIC_PROVINFO_ADD_TLV
- Adds a new OS type in vic_generic_prov_os_type
- Changes some vic_provinfo* helper routine args to constants
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
Signed-off-by: David Wang <dwang2@cisco.com>
Signed-off-by: Christian Benvenuti <benve@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch adds wrapper routines to new port profile related fw devcmds and
removes the old ones
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
Signed-off-by: David Wang <dwang2@cisco.com>
Signed-off-by: Christian Benvenuti <benve@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch introduces new fw devcmds for port profile handling.
These new commands are similar to the current fw commands for
port profile handling. The only difference being that the new
commands split the existing port profile handling devcmds into multiple
fw commands, giving the driver finer control over port profile operations.
Signed-off-by: Roopa Prabhu <roprabhu@cisco.com>
Signed-off-by: David Wang <dwang2@cisco.com>
Signed-off-by: Christian Benvenuti <benve@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Noticed by sparse:
drivers/net/via-rhine.c:1706:16: warning: cast to restricted __be16
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use the more common/verbose logging styles.
Add #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
Remove smsc911x prefixes from format strings.
Rename SMSC_WARNING to SMSC_WARN.
Remove DPRINTK macro.
Use netif_<level> in SMSC_<level> macros.
Convert NETIF_MSG_<foo> uses to lower case.
Add no_printk verification in non-debug uses.
Add pdata to SMSC_<level> uses to avoid hidden variable uses.
Convert printks to netdev_<level> as appropriate.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
As the be_worker() workqueue is scheduled in be_probe() it must
be canceled unconditionally in be_shutdown().
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The code has been refactored to not set num_rx_qs inside be_enable_msix().
num_rx_qs is now set at the time of queue creation based on the number of
available msix vectors.
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add a new chip for RTL8105 whose settings are the same with RTL_GIGA_MAC_VER_30.
Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We leak in some error paths of drivers/net/atlx/atl2.c:atl2_set_eeprom().
The memory allocated to 'eeprom_buff' is not freed when we return -EIO.
This patch fixes that up and also removes a pointless explicit cast.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This adds a driver for the CDC Ethernet part of this modem. The
device's ID is blacklisted in cdc_ether.c and is white-listed in
this new driver because of the quirks needed to make it useful.
The modem's firmware exposes a CDC ACM port for modem control and a
CDC Ethernet port for network data. The descriptors look fine but
both ports actually are some sort of multiplexers requiring non-
standard headers added/removed from every packet or they get
ignored. All information is based on a usb traffic log from a
Windows machine.
On the Verizon 4G network I've seen speeds up to 1.1MB/s so far with
this driver, a speed-o-meter site reports 16.2Mbps/10.5Mbps.
Userspace scripts are required to talk to the CDC ACM port.
Signed-off-by: Andrzej Zaborowski <balrogg@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The function phy_attach_direct attaches the phy and calls phy_init_hw.
phy_init_hw can fail, but the phy is still marked as attached. Successive
calls to phy_attach_direct will fail because the phy is busy.
[ 1.020000] eth0: Freescale FEC PHY driver [Generic PHY] (mii_bus:phy_addr=1:00, irq=-1)
[ 1.030000] eth1: Freescale FEC PHY driver [Generic PHY] (mii_bus:phy_addr=1:01, irq=-1)
[ 2.050000] Sending DHCP requests .
[ 3.020000] PHY: 1:00 - Link is Up - 100/Full
[ 5.110000] ..... timed out!
[ 87.660000] IP-Config: Reopening network devices...
[ 88.190000] FEC: MDIO read timeout
[ 88.190000] eth0: could not attach to PHY
[ 88.190000] IP-Config: Failed to open eth0
[ 88.210000] FEC: MDIO read timeout
[ 88.210000] eth1: could not attach to PHY
[ 88.210000] IP-Config: Failed to open eth1
[ 88.220000] IP-Config: No network devices available.
[ 88.220000] Freeing init memory: 6968K
[...]
starting network interfaces...
ip: RTNETLINK answers: File exists
[ 94.000000] net eth0: PHY already attached
[ 94.010000] eth0: could not attach to PHY
ip: SIOCSIFFLAGS: Device or resource busy
This patch adds phy_detach to clean up if phy_init_hw fails.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
via-ircc has been passing a NULL pointer to DMA allocation functions,
which is completely invalid and results in a BUG on PowerPC. Now
that we always have the device pointer available, pass it in.
Reference: http://bugs.debian.org/619450
Reported-by: Andrew Buckeridge <andrewb@bgc.com.au>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Tested-by: Andrew Buckeridge <andrewb@bgc.com.au> [against 2.6.32]
Signed-off-by: David S. Miller <davem@davemloft.net>
via-ircc still maintains its own array of device pointers in Linux 2.4
style. Worse, it always uses index 0, so it will crash if there are
multiple suitable devices in the system.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
If change_interface gets invoked during a firmware
restart, it may crash; prevent that from happening
by checking if ctx->vif is assigned.
Additionally, in my initial commit I forgot to set
the vif->p2p variable correctly, so fix that too.
Cc: stable@kernel.org [2.6.38+]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Some clients seem to rely upon the reception of BlockAckReqs to flush
their rx reorder buffer. In order to fix aggregation for these clients
carl9170 should set IEEE80211_TX_STAT_AMPDU_NO_BACK to generate a
BlockAckReq if the transmission of an AMPDU subframe fails.
This fixes aggregation problems with Intel 5100 Windows STAs (and maybe
others as well).
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
After new NetworkManager 0.8.996 changes, hardware scanning is causing
microcode errors as reported here:
https://bugzilla.redhat.com/show_bug.cgi?id=683571
and sometimes kernel crashes:
https://bugzilla.redhat.com/show_bug.cgi?id=688252
Also with hw scan there are very bad performance on some systems
as reported here:
https://bugzilla.redhat.com/show_bug.cgi?id=671366
Since Intel no longer supports 3945, there is no chance to get proper
firmware fixes, we need workaround problems by disable hardware scanning
by default.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Software scanning can be used for workaround some performance problems,
so do not deprecate it.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
* 'irq-final-for-linus-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (111 commits)
gpio: ab8500: Mark broken
genirq: Remove move_*irq leftovers
genirq: Remove compat code
drivers: Final irq namespace conversion
mn10300: Use generic show_interrupts()
mn10300: Cleanup irq_desc access
mn10300: Convert genirq namespace
frv: Use generic show_interrupts()
frv: Convert genirq namespace
frv: Select GENERIC_HARDIRQS_NO_DEPRECATED
frv: Convert cpu irq_chip to new functions
frv: Convert mb93493 irq_chip to new functions
frv: Convert mb93093 irq_chip to new function
frv: Convert mb93091 irq_chip to new functions
frv: Fix typo from __do_IRQ overhaul
frv: Remove stale irq_chip.end
m68k: Convert irq function namespace
xen: Use new irq_move functions
xen: Cleanup genirq namespace
unicore32: Use generic show_interrupts()
...
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (30 commits)
xfrm: Restrict extended sequence numbers to esp
xfrm: Check for esn buffer len in xfrm_new_ae
xfrm: Assign esn pointers when cloning a state
xfrm: Move the test on replay window size into the replay check functions
netdev: bfin_mac: document TE setting in RMII modes
drivers net: Fix declaration ordering in inline functions.
cxgb3: Apply interrupt coalescing settings to all queues
net: Always allocate at least 16 skb frags regardless of page size
ipv4: Don't ip_rt_put() an error pointer in RAW sockets.
net: fix ethtool->set_flags not intended -EINVAL return value
mlx4_en: Fix loss of promiscuity
tg3: Fix inline keyword usage
tg3: use <linux/io.h> and <linux/uaccess.h> instead <asm/io.h> and <asm/uaccess.h>
net: use CHECKSUM_NONE instead of magic number
Net / jme: Do not use legacy PCI power management
myri10ge: small rx_done refactoring
bridge: notify applications if address of bridge device changes
ipv4: Fix IP timestamp option (IPOPT_TS_PRESPEC) handling in ip_options_echo()
can: c_can: Fix tx_bytes accounting
can: c_can_platform: fix irq check in probe
...
The current code sometimes generates build warnings due to how it checks
the silicon revision, so clean it up and properly document things.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The correct usage should be "static inline void" instead of "static void inline"
Signed-off-by: G.Balaji <balajig81@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
While testing the performance of different receive interrupt
coalescing settings on a single stream TCP benchmark, I noticed two
very different results. With rx-usecs=50, most of the time a
connection would hit 8280 Mbps but once in a while it would hit
9330 Mbps.
It turns out we are only applying the interrupt coalescing settings
to the first queue and whenever the rx hash would direct us onto
that queue we ran faster.
With this patch applied and rx-usecs=50, I get 9330 Mbps
consistently.
Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When the chip is still asleep when ath9k_start is called,
ath9k_hw_configpcipowersave can trigger a data bus error.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Cc: stable@kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
After commit d5dbda2380 "ethtool: Add
support for vlan accleration.", drivers that have NETIF_F_HW_VLAN_TX,
and/or NETIF_F_HW_VLAN_RX feature, but do not allow enable/disable vlan
acceleration via ethtool set_flags, always return -EINVAL from that
function. Fix by returning -EINVAL only if requested features do not
match current settings and can not be changed by driver.
Change any driver that define ethtool->set_flags to use
ethtool_invalid_flags() to avoid similar problems in the future
(also on drivers that do not have the problem).
Tested with modified (to reproduce this bug) myri10ge driver.
Cc: stable@kernel.org # 2.6.37+
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The mlx4_en driver uses the combination stop_port/start_port
in a number of places. Unfortunately that causes any promiscuous
mode settings on the hardware to be lost.
This patch fixes that problem.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
The correct usage is "static inline void" not "static void inline".
Signed-off-by: Javier Martinez Canillas <martinez.javier@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It is proper style to include linux/foo.h instead asm/foo.h if both exist
Signed-off-by: Javier Martinez Canillas <martinez.javier@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Two places in the kernel were doing skb->ip_summed = 0.
Change both to skb->ip_summed = CHECKSUM_NONE, which is more readable.
Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
The jme driver uses the legacy PCI power management, so it has to do
some PCI-specific things in its ->suspend() and ->resume() callbacks,
which isn't necessary and should better be done by the PCI
sybsystem-level power management code. It also doesn't use device
wakeup flags correctly.
Convert jme to the new PCI power management framework and make it
let the PCI subsystem take care of all the PCI-specific aspects of
device handling during system power transitions.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
Avoid theoretical race condition regarding accessing dev->features
NETIF_F_LRO flag, which is illustrated below.
CPU1 CPU2
myri10ge_clean_rx_done(): myri10ge_set_flags():
or
myri10ge_set_rx_csum():
if (dev->features & NETIF_F_LRO)
setup lro
dev->features |= NETIF_F_LRO
or
dev->features &= ~NETIF_F_LRO;
if (dev->features & NETIF_F_LRO)
flush lro
On the way reduce myri10ge_rx_done() number of arguments and calls by
moving mgp->small_bytes check into that function. That reduce code size
from:
text data bss dec hex filename
36644 248 100 36992 9080 drivers/net/myri10ge/myri10ge.o
to:
text data bss dec hex filename
36037 247 100 36384 8e20 drivers/net/myri10ge/myri10ge.o
on my i686 system, what should also make myri10ge_clean_rx_done()
being faster.
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The current SocketCAN implementation for the Bosch c_can cell doesn't
account the TX bytes correctly, because it calls
c_can_inval_msg_object() (which clears the msg ctrl register) before
reading the DLC value:
for (/* nix */; (priv->tx_next - priv->tx_echo) > 0; priv->tx_echo++) {
msg_obj_no = get_tx_echo_msg_obj(priv);
c_can_inval_msg_object(dev, 0, msg_obj_no);
val = c_can_read_reg32(priv, &priv->regs->txrqst1);
if (!(val & (1 << msg_obj_no))) {
can_get_echo_skb(dev,
msg_obj_no - C_CAN_MSG_OBJ_TX_FIRST);
stats->tx_bytes += priv->read_reg(priv,
&priv->regs->ifregs[0].msg_cntrl)
& IF_MCONT_DLC_MASK;
stats->tx_packets++;
}
}
So, we will always read 0 for the DLC value and "ifconfig" will report
*0* TX Bytes.
The fix is quite easy: Just move c_can_inval_msg_object() to the end of
the if() statement. So:
* We only call c_can_inval_msg_object() if the message was
actually transmitted
* We read out the DLC value _before_ clearing the msg ctrl
register
Signed-off-by: Jan Altenberg <jan@linutronix.de>
Acked-by: Kurt Van Dijck <kurt.van.dijck@eia.be>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch fixes the check in the probe function whether a IRQ was supplied
to the driver. The original driver check the irq "struct resource *" against
<= 0. Use "platform_get_irq" instead.
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: Bhupesh Sharma <bhupesh.sharma@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch disables the one shot mode, until the driver has been fixed and
tested to support it.
> I'm quite sure I've seen a situation where msg_obj 17 "seemed" to be
> pending, while msg_obj 18 and 19 already have been transmitted. But
> in that case, I enabled ONESHOT for the can interface, which enables
> the DA mode (automatic retransmission is disabled).
Reported-by: Jan Altenberg <jan@linutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Kurt Van Dijck <kurt.van.dijck@eia.be>
Cc: Bhupesh Sharma <bhupesh.sharma@st.com>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (56 commits)
route: Take the right src and dst addresses in ip_route_newports
ipv4: Fix nexthop caching wrt. scoping.
ipv4: Invalidate nexthop cache nh_saddr more correctly.
net: fix pch_gbe section mismatch warning
ipv4: fix fib metrics
mlx4_en: Removing HW info from ethtool -i report.
net_sched: fix THROTTLED/RUNNING race
drivers/net/a2065.c: Convert release_resource to release_region/release_mem_region
drivers/net/ariadne.c: Convert release_resource to release_region/release_mem_region
bonding: fix rx_handler locking
myri10ge: fix rmmod crash
mlx4_en: updated driver version to 1.5.4.1
mlx4_en: Using blue flame support
mlx4_core: reserve UARs for userspace consumers
mlx4_core: maintain available field in bitmap allocator
mlx4: Add blue flame support for kernel consumers
mlx4_en: Enabling new steering
mlx4: Add support for promiscuous mode in the new steering model.
mlx4: generalization of multicast steering.
mlx4_en: Reporting HW revision in ethtool -i
...
Fix section mismatch warning by renaming the pci_driver variable to a
recognized (whitelisted) name.
WARNING: drivers/net/pch_gbe/pch_gbe.o(.data+0x1f8): Section mismatch in reference from the variable pch_gbe_pcidev to the variable .devinit.rodata:pch_gbe_pcidev_id
The variable pch_gbe_pcidev references
the variable __devinitconst pch_gbe_pcidev_id
If the reference is valid then annotate the
variable with __init* or __refdata (see linux/init.h) or name the variable:
*driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Avoiding abuse of ethtool_drvinfo.driver field.
HW specific info can be retrieved using lspci.
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB: Increase DMA max_segment_size on Mellanox hardware
IB/mad: Improve an error message so error code is included
RDMA/nes: Don't print success message at level KERN_ERR
RDMA/addr: Fix return of uninitialized ret value
IB/srp: try to use larger FMR sizes to cover our mappings
IB/srp: add support for indirect tables that don't fit in SRP_CMD
IB/srp: rework mapping engine to use multiple FMR entries
IB/srp: allow sg_tablesize to be set for each target
IB/srp: move IB CM setup completion into its own function
IB/srp: always avoid non-zero offsets into an FMR
Subsystem initialization sequence modified to support presence of multiple
RapidIO controllers in the system. The new sequence is compatible with
initialization of PCI devices.
Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Li Yang <leoli@freescale.com>
Cc: Thomas Moll <thomas.moll@sysgo.com>
Cc: Micha Nelissen <micha@neli.hopto.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1. Add an option to include RapidIO support if the PCI is available.
2. Add FSL_RIO configuration option to enable controller selection.
3. Add RapidIO support option into x86 and MIPS architectures.
Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Li Yang <leoli@freescale.com>
Cc: Thomas Moll <thomas.moll@sysgo.com>
Cc: Micha Nelissen <micha@neli.hopto.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Request_mem_region should be used with release_mem_region, not
release_resource.
The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
expression x,E;
@@
*x = request_mem_region(...)
... when != release_mem_region(x)
when != x = E
* release_resource(x);
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Request_mem_region should be used with release_mem_region, not
release_resource.
The semantic match that finds this problem is as follows:
(http://coccinelle.lip6.fr/)
// <smpl>
@@
expression x,E;
@@
*x = request_mem_region(...)
... when != release_mem_region(x)
when != x = E
* release_resource(x);
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: David S. Miller <davem@davemloft.net>
This prevents possible race between bond_enslave and bond_handle_frame
as reported by Nicolas by moving rx_handler register/unregister.
slave->bond is added to hold pointer to master bonding sructure. That
way dev->master is no longer used in bond_handler_frame.
Also, this removes "BUG: scheduling while atomic" message
Reported-by: Nicolas de Pesloüan <nicolas.2p.debian@gmail.com>
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: Andy Gospodarek <andy@greyhouse.net>
Tested-by: Nicolas de Pesloüan <nicolas.2p.debian@free.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
Rmmod myri10ge crash at free_netdev() -> netif_napi_del(), because napi
structures are already deallocated. To fix call netif_napi_del() before
kfree() at myri10ge_free_slices().
Cc: stable@kernel.org
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Doorbell is used according to usage of BlueFlame.
For Blue Flame to work in Ethernet mode QP number should have 0
at bits 6,7.
Allocating range of QPs accordingly.
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
Do not allow a kernel consumer to allocate a UAR to serve for blue flame if the
number of available UARs gets below MLX4_NUM_RESERVED_UARS (currently 8). This
will allow userspace apps to open a device file and run things like
ibv_devinfo.
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add mlx4_bitmap_avail() to give the number of available resources. We want to
use this as a hint to whether to allocate a resources or not. This patch is
introduced to be used with allocation blue flame registers.
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
Using blue flame can improve latency by allowing the HW to more efficiently
access the WQE. This patch presents two functions that are used to allocate or
release HW resources for using blue flame; the caller need to supply a struct
mlx4_bf object when allocating resources. Consumers that make use of this API
should post doorbells to the UAR object pointed by the initialized struct
mlx4_bf;
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
The mlx4_en module now uses the new steering mechanism.
The RX packets are now steered through the MCG table instead
of Mac table for unicast, and default entry for multicast.
The feature is enabled through INIT_HCA
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
For Ethernet mode only,
When we want to register QP as promiscuous, it must be added to all the
existing steering entries and also to the default one.
The promiscuous QP might also be on of "real" QPs,
which means we need to monitor every entry to avoid duplicates and ensure
we close an entry when all it has is promiscuous QPs.
Same mechanism both for unicast and multicast.
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
The same packet steering mechanism would be used both for IB and Ethernet,
Both multicasts and unicasts.
This commit prepares the general infrastructure for this.
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
HW revision is derived from device ID and rev id.
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.co.il>
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
The driver queries the FW for WOL support.
Ethtool get/set_wol is implemented accordingly.
Only magic packets are supported at the time.
Signed-off-by: Igor Yarovinsky <igory@mellanox.co.il>
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
Each RX ring will have its own interrupt vector, and TX rings will share one
(we mostly use polling for TX completions).
The vectors are assigned first time device is opened, and its name includes
the interface name and ring number.
Signed-off-by: Markuze Alex <markuze@mellanox.co.il>
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
Adding a pool of MSI-X vectors and EQs that can be used explicitly by mlx4_core
customers (mlx4_ib, mlx4_en). The consumers will assign their own names to the
interrupt vectors. Those vectors are not opened at mlx4 device initialization,
opened by demand.
Changed the max number of possible EQs according to the new scheme, no longer relies on
on number of cores.
The new functionality is exposed through mlx4_assign_eq() and mlx4_release_eq().
Customers that do not use the new API will get completion vectors as before.
Signed-off-by: Markuze Alex <markuze@mellanox.co.il>
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
Instead of reseting the module parameters each ifup or mtu change,
they are being set once at device initialization
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
commit 86271e460a introduced a
regression that caused mac80211 queues in stopped state.
ath_drain_all_txq is called in driver flush which would reset
the stopped flag and the mac80211 queues were never started
after that. iperf traffic is completely stalled due to this issue.
Restart the mac80211 queues in driver flush only if the txqs were
drained.
Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
With the recent tx status optimization in mac80211, we bail out as
and and when invalid rate index is found. So the behavior of resetting
rate idx to -1 and count to 0 has changed for the rate indexes that
were not part of the driver's retry series.
This has resulted in ath9k using incorrect rate table index which
caused the system to panic. Ideally ath9k need to loop only for the
indexes that were part of the retry series and so simply use hw->max_rates
as the loop counter.
Pasted the stack trace of the panic issue for reference.
[ 754.093192] BUG: unable to handle kernel paging request at ffff88046a9025b0
[ 754.093256] IP: [<ffffffffa02eac49>] ath_tx_status+0x209/0x2f0 [ath9k]
[ 754.094888] Call Trace:
[ 754.094903] <IRQ>
[ 754.094928] [<ffffffffa051f883>] ieee80211_tx_status+0x203/0x9e0 [mac80211]
[ 754.094975] [<ffffffffa053e305>] ? __ieee80211_wake_queue+0x125/0x140 [mac80211]
[ 754.095017] [<ffffffffa02e66c9>] ath_tx_complete_buf+0x1b9/0x370 [ath9k]
[ 754.095054] [<ffffffffa02e6fcf>] ath_tx_complete_aggr+0x51f/0xb50 [ath9k]
[ 754.095098] [<ffffffffa05382a3>] ? ieee80211_prepare_and_rx_handle+0x173/0xab0 [mac80211]
[ 754.095148] [<ffffffff81350e62>] ? _raw_spin_unlock_irqrestore+0x32/0x40
[ 754.095186] [<ffffffffa02e9735>] ath_tx_tasklet+0x365/0x4b0 [ath9k]
[ 754.095224] [<ffffffff8107a2a2>] ? clockevents_program_event+0x62/0xa0
[ 754.095261] [<ffffffffa02e2628>] ath9k_tasklet+0x168/0x1c0 [ath9k]
[ 754.095298] [<ffffffff8105599b>] tasklet_action+0x6b/0xe0
[ 754.095331] [<ffffffff81056278>] __do_softirq+0x98/0x120
[ 754.095361] [<ffffffff8100cd5c>] call_softirq+0x1c/0x30
[ 754.095393] [<ffffffff8100efb5>] do_softirq+0x65/0xa0
[ 754.095423] [<ffffffff810563fd>] irq_exit+0x8d/0x90
[ 754.095453] [<ffffffff8100ebc1>] do_IRQ+0x61/0xe0
[ 754.095482] [<ffffffff81351413>] ret_from_intr+0x0/0x15
[ 754.095513] <EOI>
[ 754.095531] [<ffffffff81014375>] ? native_sched_clock+0x15/0x70
[ 754.096475] [<ffffffffa02bcfa6>] ? acpi_idle_enter_bm+0x24d/0x285 [processor]
[ 754.096475] [<ffffffffa02bcf9f>] ? acpi_idle_enter_bm+0x246/0x285 [processor]
[ 754.096475] [<ffffffff8127fab2>] cpuidle_idle_call+0x82/0x100
[ 754.096475] [<ffffffff8100a236>] cpu_idle+0xa6/0xf0
[ 754.096475] [<ffffffff81339bc1>] rest_init+0x91/0xa0
[ 754.096475] [<ffffffff814efccd>] start_kernel+0x3fd/0x408
[ 754.096475] [<ffffffff814ef347>] x86_64_start_reservations+0x132/0x136
[ 754.096475] [<ffffffff814ef451>] x86_64_start_kernel+0x106/0x115
[ 754.096475] RIP [<ffffffffa02eac49>] ath_tx_status+0x209/0x2f0 [ath9k]
Signed-off-by: Senthil Balasubramanian <senthilkumar@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
On hardware busy the scan request pointer should be cleared, as higher
levels will release. This avoids a crash when that pointer is
erroneously used later.
Signed-off-by: Joseph J. Gunn <armadefuego@yahoo.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Clearly a mistake, since pointers won't suddenly
change their value...
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The cell's platform_data is now accessed with a helper function;
change clients to use that, and remove the now-unused data_size.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
The cell's platform_data is now accessed with a helper function;
change clients to use that, and remove the now-unused data_size.
Note that the mfd's platform_data is marked __devinitdata. This
is still correct in all cases except for the timbgpio driver, whose
remove hook has been changed to no longer reference the pdata.
Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
With recent changes to the driver(switch to new cpdma layer),
the support for buffer descriptor address translation logic
is broken. This affects platforms where the physical address of
the descriptors as seen by the DMA engine is different from the
physical address.
Original Patch adding translation logic support:
Commit: ad021ae886
Signed-off-by: Sriramakrishnan A G <srk@ti.com>
Tested-By: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If SR-IOV is enabled by firmware, even if it is not enabled in the PCI
capability, TX pushes using write-combining may be corrupted.
We want to know whether it is enabled before mapping the NIC
registers, and even if PCI extended capabilities are not accessible.
Therefore, we look for the MSI capability, which is removed if SR-IOV
is enabled.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Instead of always creating a huge (268K) deflate_workspace with the
maximum compression parameters (windowBits=15, memLevel=8), allow the
caller to obtain a smaller workspace by specifying smaller parameter
values.
For example, when capturing oops and panic reports to a medium with
limited capacity, such as NVRAM, compression may be the only way to
capture the whole report. In this case, a small workspace (24K works
fine) is a win, whether you allocate the workspace when you need it (i.e.,
during an oops or panic) or at boot time.
I've verified that this patch works with all accepted values of windowBits
(positive and negative), memLevel, and compression level.
Signed-off-by: Jim Keniston <jkenisto@us.ibm.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David Miller <davem@davemloft.net>
Cc: Chris Mason <chris.mason@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
By default, each device is assumed to be able only handle 64 KB chunks
during DMA. By giving the segment size a larger value, the block layer
will coalesce more S/G entries together for SRP, allowing larger
requests with the same sg_tablesize setting. The block layer is the
only direct user of it, though a few IOMMU drivers reference it as
well for their *_map_sg coalescing code. pci-gart_64 on x86, and a
smattering on on sparc, powerpc, and ia64.
Since other IB protocols could potentially see larger segments with
this, let's check those:
- iSER is fine, because you limit your maximum request size to 512
KB, so we'll never overrun the page vector in struct iser_page_vec
(128 entries currently). It is independent of the DMA segment size,
and handles multi-page segments already.
- IPoIB is fine, as it maps each page individually, and doesn't use
ib_dma_map_sg().
- RDS appears to do the right thing and has no dependencies on DMA
segment size, but I don't claim to have done a complete audit.
- NFSoRDMA and 9p are OK -- they do not use ib_dma_map_sg(), so they
doesn't care about the coalescing.
- Lustre's ko2iblnd does not care about coalescing -- it properly
walks the returned sg list.
This patch ups the value on Mellanox hardware to 1 GB, which matches
reported firmware limits on mlx4.
Signed-off-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <roland@purestorage.com>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (33 commits)
IPVS: Use global mutex in ip_vs_app.c
ipvs: fix a typo in __ip_vs_control_init()
veth: Fix the byte counters
net ipv6: Fix duplicate /proc/sys/net/ipv6/neigh directory entries.
macvlan: Fix use after free of struct macvlan_port.
net: fix incorrect spelling in drop monitor protocol
can: c_can: Do basic c_can configuration _before_ enabling the interrupts
net/appletalk: fix atalk_release use after free
ipx: fix ipx_release()
snmp: SNMP_UPD_PO_STATS_BH() always called from softirq
l2tp: fix possible oops on l2tp_eth module unload
xfrm: Fix initialize repl field of struct xfrm_state
netfilter: ipt_CLUSTERIP: fix buffer overflow
netfilter: xtables: fix reentrancy
netfilter: ipset: fix checking the type revision at create command
netfilter: ipset: fix address ranges at hash:*port* types
niu: Rename NIU parent platform device name to fix conflict.
r8169: fix a bug in rtl8169_init_phy()
bonding: fix a typo in a comment
ftmac100: use resource_size()
...
Commit 44540960 "veth: move loopback logic to common location" introduced
a bug in the packet counters. I don't understand why that happened as it
is not explained in the comments and the mut check in dev_forward_skb
retains the assumption that skb->len is the total length of the packet.
I just measured this emperically by setting up a veth pair between two
noop network namespaces setting and attempting a telnet connection between
the two. I saw three packets in each direction and the byte counters were
exactly 14*3 = 42 bytes high in each direction. I got the actual
packet lengths with tcpdump.
So remove the extra ETH_HLEN from the veth byte count totals.
Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When the macvlan driver was extended to call unregisgter_netdevice_queue
in 23289a37e2, a use after free of struct
macvlan_port was introduced. The code in dellink relied on unregister_netdevice
actually unregistering the net device so it would be safe to free macvlan_port.
Since unregister_netdevice_queue can just queue up the unregister instead of
performing the unregiser immediately we free the macvlan_port too soon and
then the code in macvlan_stop removes the macaddress for the set of macaddress
to listen for and uses memory that has already been freed.
To fix this add a reference count to track when it is safe to free the macvlan_port
and move the call of macvlan_port_destroy into macvlan_uninit which is guaranteed
to be called after the final macvlan_port_close.
Signed-off-by: Eric W. Biederman <ebiederm@aristanetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
I ran into some trouble while testing the SocketCAN driver for the BOSCH
C_CAN controller. The interface is not correctly initialized, if I put
some CAN traffic on the line, _while_ the interface is being started
(which means: the interface doesn't come up correcty, if there's some RX
traffic while doing 'ifconfig can0 up').
The current implementation enables the controller interrupts _before_
doing the basic c_can configuration. I think, this should be done the
other way round.
The patch below fixes things for me.
Signed-off-by: Jan Altenberg <jan@linutronix.de>
Acked-by: Kurt Van Dijck <kurt.van.dijck@eia.be>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
These were found using the following semantic match:
// <smpl>
@@expression E1; type T;@@
* memset(E1, ... * sizeof(T) * ..., ...);
// </smpl>
Also take this opportunity to remove the unnecessary void* casts.
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Add unknown Toshiba device, mentioned in rt3572sta sources, under
CONFIG_RT2800USB_UNKNOWN
Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Add 2L Central Europe BV 8070 under CONFIG_RT2800USB_UNKNOWN
Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>
Acked-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
