Currently the mask is wrongly set in the MAP_EQ wrapper, fix that.
Without the fix any EQ number above 511 is mapped to one below 511.
Signed-off-by: Moshe Lazer <moshel@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The GRO_DROP return code is handled by the core network layer.
The current kernel approach is to factorize this kind of statistics into
the upper layers, instead of having all the drivers maintaining them.
Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Warning message:
warning: 'budget_per_q' may be used uninitialized in this function
budget_per_q won't be used uninitialized since the only time
it doesn't get initialized is when entering gfar_poll with
num_act_queues == 0, meaning rstat_rxf == 0, in which case
budget_per_q is not utilized (as it has no meaning).
Inititalize budget_per_q to 0 though to suppress this compile
warning.
Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The error check in cpsw_probe_dt() has an '&&' where an '||' is
meant to be. This causes a NULL pointer dereference when incomplet DT
data is passed to the driver ('phy_id' property for cpsw_emac1
missing).
Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Freeing netdev without free_netdev() leads to net, tx leaks.
And it may lead to dereferencing freed pointer.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use netdev_alloc_sk_ip_align in the case where packet is copied.
This handles case where NET_IP_ALIGN == 0 as well as adding required header
padding.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Drivers should reserve some headroom in skb used in receive path,
to avoid future head reallocation.
One possible way to do that is to use dev_alloc_skb() instead
of alloc_skb(), so that NET_SKB_PAD bytes are reserved.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Revised bnx2x implementation of PCI Express Advanced Error Recovery -
stop and free driver resources according to the AER flow (instead of the
currently implemented `hope-for-the-best' release approach), and do not make
any assumptions on the HW state after slot reset.
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
module_platform_driver macro removes some boilerplate and
simplifies the code.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
module_platform_driver macro removes some boilerplate and
simplifies the code.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The only place where gfar_configure_coalescing is called
with an actual bitmask (other than 0xff) is in gfar_poll
(on the hot path). So make gfar_configure_coalescing()
static for the buffer processing path, and export
gfar_configure_coalescing_all() for the remaining cases
that require to set coalescing for all the queues at once
(on the slow path).
Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
For Multi Q Multi Group (MQ_MG_MODE) mode, the Rx/Tx colescing registers [rt]xic
are aliased with the [rt]xic0 registers (coalescing setting regs for Q0). This
avoids programming twice in a row the coalescing registers for the Rx/Tx hw Q0.
Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Split the napi budget fairly among the active queues only, instead
of dividing it by the total number of Rx queues assigned to the
given interrupt group.
Use the h/w indication field RXFi in rstat (receive status register)
to identify the active rx queues from the current interrupt group
(i.e. receive event occured on ring i, if ring i is part of the current
interrupt group). This indication field in rstat, RXFi i=0..7,
allows us to find out on which queues of the same interrupt group
do we have incomming traffic once we entered the polling routine for
the given interrupt group. After servicing the ring i, the corresponding
bit RXFi will be written with 1 to clear the active queue indication for
that ring.
Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There are 2 issues with the current napi poll routine, with regards
to tx ring cleanup:
1) for multi-queue devices (MQ_MG_MODE), should tx_bit_map != rx_bit_map,
which is possible (and supported in h/w) if the DT property "fsl,tx-bit-map"
holds a different value than rx_bit_map, the current polling routine will
service the wrong Tx queues in this case (i.e. the interrupt group will
receive interrupts from tx queues that it will not service)
2) Tx cleanup completion consumes napi budget, whereas the napi budget
should be reserved for Rx work only.
The patch fixes these issues and provides a clean napi polling routine.
Napi poll completion is reached when all the Rx queues have been
serviced and there is no Tx work to do.
Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix the following warnings that happen when building with W=1 option:
drivers/net/ethernet/freescale/fec.c: In function 'fec_enet_free_buffers':
drivers/net/ethernet/freescale/fec.c:1337:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
drivers/net/ethernet/freescale/fec.c: In function 'fec_enet_alloc_buffers':
drivers/net/ethernet/freescale/fec.c:1361:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
drivers/net/ethernet/freescale/fec.c: In function 'fec_enet_init':
drivers/net/ethernet/freescale/fec.c:1631:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix to return a negative error code from the error handling
case instead of 0, as returned elsewhere in this function.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
One must check the result of ioremap() -- in this case it prevents potential
kernel oops when initializing TSU registers further on...
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
sh_mdio_init() allocates pointer to 'struct bb_info' but only stores it locally,
so that sh_mdio_release() can't free it on driver unload. Add the pointer to
'struct bb_info' to 'struct sh_eth_private', so that sh_mdio_init() can save
'bitbang' variable for sh_mdio_release() to be able to free it later...
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Silences the following sparse warning:
drivers/net/ethernet/smsc/smsc911x.c:2145:30:
warning: Using plain integer as NULL pointer
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
The UPDATE_QSTAT function introduced on February 15, 2012
in commit 1355b704b9 "bnx2x: consistent statistics after
internal driver reload" incorrectly fails to handle overflow
during addition of the lower 32-bit field of a stat.
This bug is present since 3.4-rc1 and should thus be considered
a candidate for stable 3.4+ releases.
Google-Bug-Id: 8374428
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Cc: Mintz Yuval <yuvalmin@broadcom.com>
Acked-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The patch drives FW to perform RSS for GRE traffic,
based on inner headers.
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The patch utilizes FW offload capabilities for
encapsulation protocols.
Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
module_platform_driver macro removes some boilerplate and makes
the code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
module_platform_driver macro removes some boilerplate and makes
the code simpler.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
replace ip_fast_csum with csum_replace2 to save cpu cycles
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Reduce the number of calls required to alloc
a zeroed block of memory.
Trivially reduces overall object size.
Other changes around these removals
o Neaten call argument alignment
o Remove an unnecessary OOM message after dma_alloc_coherent failure
o Remove unnecessary gfp_t stack variable
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
If the hardware initialization fails in bnx2x_nic_load() after adding
napi objects, they would not be deleted. A subsequent attempt to unload
the bnx2x module detects a corruption in the napi list.
Add the missing napi deletion to the error path.
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Acked-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix which was done in the following commit in cpsw driver has
to be taken forward to davinci emac driver as well.
commit d35162f89b
Author: Daniel Mack <zonque@gmail.com>
Date: Tue Mar 12 06:31:19 2013 +0000
net: ethernet: cpsw: fix usage of cpdma_check_free_tx_desc()
Commit fae50823d0 ("net: ethernet: davinci_cpdma: Add boundary for rx
and tx descriptors") introduced a function to check the current
allocation state of tx packets. The return value is taken into account
to stop the netqork queue on the adapter in case there are no free
slots.
However, cpdma_check_free_tx_desc() returns 'true' if there is room in
the bitmap, not 'false', so the usage of the function is wrong.
Reported-by: Prabhakar Lad <prabhakar.csengg@gmail.com>
Tested-by: Prabhakar Lad <prabhakar.csengg@gmail.com>
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The automated ARM build tests have shown that the tulip de4x5 driver
uses the old-style virt_to_bus() interface on some architectures.
Alpha, Sparc and PowerPC did not hit this problem, because they
use a different code path, and most other architectures actually
do provide VIRT_TO_BUS.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Grant Grundler <grundler@parisc-linux.org>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
From Linus Walleij <linus.walleij@linaro.org>:
Ux500 Device Tree fixes
All are necessary to make a proper DT boot on the v3.9
series:
- IRQ edges.
- Register defines.
- FSMC clock.
- Ethernet clk fixup (one patch to drivers/net ACKed by
David Miller)
- Proper IOS and regulator voltages for MMCI.
- AB8500 GPIOs restored after they were fixed in the v3.9
merge window from the pinctrl tree.
- There is also a minor cleanup in the platform code, but it
is strongly connected to the other patches.
* tag 'ux500-dt-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
ARM: ux500: allow Snowball access to the AB8500 GPIO pins
ARM: ux500: enable AB8500 GPIO for HREF
ARM: ux500: Remove traces of the ios_handler from platform code
ARM: ux500: Use the GPIO regulator framework for SDI0's 'en' and 'vsel'
ARM: ux500: Setup correct settling time for the MMCI regulator
ARM: ux500: Use the correct name when supplying a GPIO enable pin
ARM: ux500: Specify which IOS regulator to use for MMCI
ARM: ux500: Specify the ux5x0 MMCI regulator's on/off GPIO as high-enable
ARM: ux500: Set correct MMCI regulator voltages in the ux5x0 Device Tree
mmc: mmci: Move ios_handler functionality into the driver
net/smsc911x: Provide common clock functionality
clk: ux500: Provide an alias for the SMSC911x Ethernet chip
clk: ux500: Ensure the FMSC clock is obtainable
ARM: ux500: Provide a means to obtain the SMSC9115 clock when DT is enabled
ARM: ux500: Include the PRCMU's Secure Registers in DB8500's DT
ARM: ux500: Change IRQ from low-to-high edge triggered to high-to-low
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Use the new module_pcmcia_driver() macro to remove the boilerplate
module init/exit code in the pcmcia drivers.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
replace ip_fast_csum with csum_replace2 to save cpu cycles
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
I believe these error messages are already logged
on allocation failure by warn_alloc_failed and so
get a dump_stack on OOM.
Remove the unnecessary additional error logging.
Around these deletions:
o Alignment neatening.
o Remove unnecessary casts of dma_alloc_coherent.
o Hoist assigns from ifs.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This is needed as the earlier method of manipulating this register via PCI
Config space is disallowed by certain Hypervisors.
Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
As the NIC PCI function may be used by other protocols, the chip interrupts
must be enabled in be_probe() itself rather than be_open().
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Commit dc975382d2 introduces napi support
but never calls napi_disable. This will generate a kernel oops
(kernel BUG at include/linux/netdevice.h:473!) every time, when
ndo_stop is called followed by ndo_start.
Add the missing napi_diable call.
Signed-off-by: Georg Hofmann <georg@hofmannsweb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Proviously we would only restart the FEC when PHY link or duplex state
changed. PHY does not always bring down the link for speed changes, in
which case we would not detect any change and keep FEC running.
Switching link speed without restarting the FEC results in the FEC being
stuck in an indefinite state, generating error conditions for every
packet.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch allows LRO aggregation on bonded devices that contain an
NX3031 device. It also adds a for_each_netdev_in_bond_rcu(bond, slave)
macro which executes for each slave that has bond as master.
V3: After testing and discussing this with Rajesh, I decided to keep the
vlan ip cache and just rename it to ip_cache since it will store bond
ip addresses too. A new master flag has been added to the ip cache to
denote that the address has been added because of a master device.
I've taken care of the enslave/release cases by checking for various
combinations of events and flags (e.g. netxen has a master, it's a
bond master and it's not marked as a slave means it is being enslaved
and is dev_open()ed in bond_enslave).
I've changed netxen_free_ip_list() to have a "master" parameter which
causes all IP addresses marked as master to be deleted (used when a
netxen is being released). I've made the patch use the new upper
device API as well. The following cases were tested:
- bond -> netxen
- vlan -> netxen
- vlan -> bond -> netxen
V2: Remove local ip caching, retrieve addresses dynamically and
restore them if necessary.
Note: Tested with NX3031 adapter.
Tested-by: Rajesh Borundia <rajesh.borundia@qlogic.com>
Signed-off-by: Andy Gospodarek <agospoda@redhat.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
It enables direct DMA by HW to memory region PBL arrays and fast register PBL
arrays from host memory, vs the T4 way of passing these arrays in the WR itself.
The result is lower latency for memory registration, and larger PBL array
support for fast register operations.
This patch also updates ULP_TX_MEM_WRITE command fields for T5. Ordering bit of
ULP_TX_MEM_WRITE is at bit position 22 in T5 and at 23 in T4.
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
