First step in adding proper irq handling. We'll start with poulsbo support so
make sure other chips don't touch drm_irq_install().
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Virtual Machines with emulated e1000 network adapter running on Parallels'
server were seeing kernel panics due to the e1000 driver dereferencing an
unexpected NULL pointer retrieved from buffer_info->skb.
The problem has been addressed for the e1000e driver, but not for the e1000.
Since the two drivers share similar code in the affected area, a port of the
following e1000e driver commit solves the issue for the e1000 driver:
commit 9ed318d546
Author: Tom Herbert <therbert@google.com>
Date: Wed May 5 14:02:27 2010 +0000
e1000e: save skb counts in TX to avoid cache misses
In e1000_tx_map, precompute number of segements and bytecounts which
are derived from fields in skb; these are stored in buffer_info. When
cleaning tx in e1000_clean_tx_irq use the values in the associated
buffer_info for statistics counting, this eliminates cache misses
on skb fields.
Signed-off-by: Dean Nelson <dnelson@redhat.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The rspq->rsphdlr[] array has BFI_MC_MAX elements, so this test was
off by one.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We introduced a new lock here, so there was error path which needs
an unlock now.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Rasesh Mody <rmody@brocade.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The BCM54616 PHY is very similar to the 54618SE, only without EEE support, which will not be activated due to querying the actual PHY type.
This check is already done by reading a dedicated PHY register.
Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
bnx2x used to be able to set rxhash, but this was lost in the conversion
to hw_features (commit 66371c441).
Restore it and enable it by default.
Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
CC: Vladislav Zolotarov <vladz@broadcom.com>
CC: Eilon Greenstein <eilong@broadcom.com>
CC: Dmitry Kravkov <dmitry@broadcom.com>
CC: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Spotted-by: Thomas Jarosch <thomas.jarosch@intra2net.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In ti_hecc_probe(), the spinlock priv->mbx_lock is not
inited, causing a spinlock lockup BUG.
Acked-by: Anant Gole <anantgole@ti.com>
Signed-off-by: Abhilash K V <abhilash.kv@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In ti_hecc_xmit(), local variable "data" is not initialized before
being used.
This initialization got inadvertently removed in the following patch:
can: Unify droping of invalid tx skbs and netdev stats
Acked-by: Anant Gole <anantgole@ti.com>
Signed-off-by: Abhilash K V <abhilash.kv@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix the following build error:
CC drivers/net/sh_eth.o
drivers/net/sh_eth.c:1115: error: expected ‘=’, ‘,’, ‘;’, ‘asm’ or ‘__attribute__’ before ‘sh_eth_interrupt’
drivers/net/sh_eth.c: In function ‘sh_eth_open’:
drivers/net/sh_eth.c:1387: error: implicit declaration of function ‘request_irq’
drivers/net/sh_eth.c:1387: error: ‘sh_eth_interrupt’ undeclared (first use in this function)
drivers/net/sh_eth.c:1387: error: (Each undeclared identifier is reported only once
drivers/net/sh_eth.c:1387: error: for each function it appears in.)
drivers/net/sh_eth.c:1391: error: ‘IRQF_SHARED’ undeclared (first use in this function)
drivers/net/sh_eth.c:1424: error: implicit declaration of function ‘free_irq’
make[2]: *** [drivers/net/sh_eth.o] Error 1
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
According to the DP83865 datasheet we need to clear
the interrupt status bit by writing a 1 to the
corresponding bit in INT_CLEAR (2:0 are reserved).
Proposed and tested by Thorsten.
Signed-off-by: Thorsten Schubert <tshu@msc-ge.com>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Robert Love <robert.w.love@intel.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Cc: devel@open-fcoe.org
Cc: linux-scsi@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Eilon Greenstein <eilong@broadcom.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Michael Chan <mchan@broadcom.com>
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Matt Carlson <mcarlson@broadcom.com>
Cc: Michael Chan <mchan@broadcom.com>
Cc: netdev@vger.kernel.org
Cc: devicetree-discuss@lists.ozlabs.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Roland Dreier <roland@kernel.org>
Cc: Sean Hefty <sean.hefty@intel.com>
Cc: Hal Rosenstock <hal.rosenstock@gmail.com>
Cc: linux-rdma@vger.kernel.org
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Faisal Latif <faisal.latif@intel.com>
Cc: Roland Dreier <roland@kernel.org>
Cc: Sean Hefty <sean.hefty@intel.com>
Cc: Hal Rosenstock <hal.rosenstock@gmail.com>
Cc: linux-rdma@vger.kernel.org
Cc: netdev@vger.kernel.org
Acked-by: Faisal Latif <faisal.latif@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Tom Tucker <tom@opengridcomputing.com>
Cc: Steve Wise <swise@opengridcomputing.com>
Cc: Roland Dreier <roland@kernel.org>
Cc: Sean Hefty <sean.hefty@intel.com>
Cc: Hal Rosenstock <hal.rosenstock@gmail.com>
Cc: linux-rdma@vger.kernel.org
Cc: netdev@vger.kernel.org
Acked-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Chas Williams <chas@cmf.nrl.navy.mil>
Cc: linux-atm-general@lists.sourceforge.net
Cc: netdev@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] memory hotplug: only unassign assigned increments
[S390] Change default action from reipl to stop for on_restart
[S390] arch/s390/kernel/ipl.c: correct error detection check
[S390] drivers/s390/block/dasd_ioctl.c: add missing kfree
[S390] nss,initrd: kernel image and initrd must be in different segments
The process to swizzle a Machine Frame Number (MFN) is not always
necessary. Especially if we know that we actually do not have to do it.
In this patch we check the MFN against the device's coherent
DMA mask and if the requested page(s) are contingous. If it all checks
out we will just return the bus addr without doing the memory
swizzle.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Notifier functions are expected to return NOTIFY_* codes, not -E...
ones. In particular, since the respective hypercalls failing is not
fatal to the operation of the Dom0 kernel, it must be avoided to
return negative values here as those would make it appear as if
NOTIFY_STOP_MASK wa set, suppressing further notification calls to
other interested parties (which is also why we don't want to use
notifier_from_errno() here).
While at it, also notify the user of a failed hypercall.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
[v1: Added dev_err and the disable MSI/MSI-X call]
[v2: Removed the disable MSI/MSI-X call]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Fix printk() and panic() args [swap them] to fix build warnings:
drivers/xen/swiotlb-xen.c:201: warning: format '%s' expects type 'char *', but argument 2 has type 'int'
drivers/xen/swiotlb-xen.c:201: warning: format '%d' expects type 'int', but argument 3 has type 'char *'
drivers/xen/swiotlb-xen.c:202: warning: format '%s' expects type 'char *', but argument 2 has type 'int'
drivers/xen/swiotlb-xen.c:202: warning: format '%d' expects type 'int', but argument 3 has type 'char *'
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Propagate the baremetal git commit "swiotlb: fix wrong panic"
(fba99fa38b) in the Xen-SWIOTLB version.
wherein swiotlb's map_page wrongly calls panic() when it can't find
a buffer fit for device's dma mask. It should return an error instead.
Devices with an odd dma mask (i.e. under 4G) like b44 network card hit
this bug (the system crashes):
http://marc.info/?l=linux-kernel&m=129648943830106&w=2
If xen-swiotlb returns an error, b44 driver can use the own bouncing
mechanism.
CC: stable@kernel.org
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
We can fail seting up Xen-SWIOTLB if:
- The host does not have enough contiguous DMA32 memory available
(can happen on a machine that has fragmented memory from starting,
stopping many guests).
- Not enough low memory (almost never happens).
We retry allocating and exchanging the swath of contiguous memory
up to three times. Each time we decrease the amount we need - the
minimum being of 2MB.
If we compleltly fail, we will print the reason for failure on the Xen
console on top of doing it to earlyprintk=xen console.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
With Xen changeset 23428 "libxl: Add 'e820_host' option to config file"
the E820 as seen from the host can now be passed into the guest.
This means that a PV guest can now:
- Use the correct PCI I/O gap. Before these patches, Linux guest would
boot up and would tell:
[ 0.000000] Allocating PCI resources starting at 40000000 (gap: 40000000:c0000000)
while in actuality the PCI I/O gap should have been:
[ 0.000000] Allocating PCI resources starting at b0000000 (gap: b0000000:4c000000)
- The PV domain with PCI devices was limited to 3GB. It now can be booted
with 4GB, 8GB, or whatever number you want. The PCI devices will now _not_ conflict
with System RAM. Meaning the drivers can load.
CC: Jesse Barnes <jbarnes@virtuousgeek.org>
CC: linux-pci@vger.kernel.org
CC: stable@kernel.org
[v2: Made the string less broken up. Suggested by Joe Perches]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
This has been tested in STA and AP mode by Florian.
Cc: David Quan <dquan@qca.qualcomm.com>
Cc: Kathy Giori <kgiori@qca.qualcomm.com>
Cc: Senthil Balasubramanian <senthilb@qca.qualcomm.com>
Tested-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Use the do_div macro for 64-bit division. Otherwise, the module will
reference __udivdi3 under 32-bit kernels, which is not allowed in
kernel space.
drivers/built-in.o: In function `carl9170_collect_tally':
cmd.c:191: undefined reference to `__udivdi3'
cmd.c:192: undefined reference to `__udivdi3'
cmd.c:193: undefined reference to `__udivdi3'
Reported-by: Kalle Valo <kvalo@adurom.com>
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Tested-by: Kalle Valo <kvalo@adurom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Here are the AR9580 1.0 initvals checksums using the
Atheros initvals-tools [1]. This is useful for when
we udate the initvals again with other values. It ensures
that we match the same initvals used internally. The
tool is documented on the wiki [2].
$ ./initvals -f ar9580-1p0
0x00000000e912711f ar9580_1p0_modes_fast_clock
0x000000004a488fc7 ar9580_1p0_radio_postamble
0x00000000f3888b02 ar9580_1p0_baseband_core
0x0000000003f783bb ar9580_1p0_mac_postamble
0x0000000094be244a ar9580_1p0_low_ob_db_tx_gain_table
0x0000000094be244a ar9580_1p0_high_power_tx_gain_table
0x0000000090be244a ar9580_1p0_lowest_ob_db_tx_gain_table
0x00000000ed9eaac6 ar9580_1p0_baseband_core_txfir_coeff_japan_2484
0x00000000c4d66d1b ar9580_1p0_mac_core
0x00000000e8e9043a ar9580_1p0_mixed_ob_db_tx_gain_table
0x000000003521a300 ar9580_1p0_wo_xlna_rx_gain_table
0x00000000301fc841 ar9580_1p0_soc_postamble
0x00000000a9a06b3a ar9580_1p0_high_ob_db_tx_gain_table
0x00000000a15ccf1b ar9580_1p0_soc_preamble
0x0000000029495000 ar9580_1p0_rx_gain_table
0x0000000037ac0ee8 ar9580_1p0_radio_core
0x00000000603a1b80 ar9580_1p0_baseband_postamble
0x000000003d8b4396 ar9580_1p0_pcie_phy_clkreq_enable_L1
0x00000000398b4396 ar9580_1p0_pcie_phy_clkreq_disable_L1
0x00000000397b4396 ar9580_1p0_pcie_phy_pll_on_clkreq
[1] git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/initvals-tool.git
[2] http://wireless.kernel.org/en/users/Drivers/ath9k_hw/initvals-tool
Cc: David Quan <dquan@qca.qualcomm.com>
Cc: Kathy Giori <kgiori@qca.qualcomm.com>
Cc: Senthil Balasubramanian <senthilb@qca.qualcomm.com>
Tested-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
currently this call back is used only in debugfs of mac80211
Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
CC [M] drivers/net/wireless/b43/pio.o
drivers/net/wireless/b43/pio.c: In function ‘pio_rx_frame’:
drivers/net/wireless/b43/pio.c:614:6: warning: ‘macstat’ may be used uninitialized in this function
Signed-off-by: John W. Linville <linville@tuxdriver.com>
We don't know yet when to restore it, implement just reading. We found
out what for are that PHY ops by comparing HT with N code.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Comparison of the HT and N code has shown similarities in the ops
performed after b43_mac_phy_clock_set. That way we understood what is
happening in the HT-PHY code.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Currently the aggregation is formed till the aggregation limit
is reached and the rate lookup is done for the first frame alone.
But there can be a legacy rated frames in tid queue. This patch
limits the subframe addition based on presence of legacy rate and
sends the legacy rated frames as unaggregated one.
Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
We have module param called use_pio which is much easier to use.
Cc: Larry Finger <larry.finger@lwfinger.net>
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The omap_iommu_set_isr() was still using the mutex functions
but the iommu_lock was converted to a spin_lock. Fix that
up.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Prepend 'omap_' to OMAP's 'struct iommu' and exposed API, to prevent
namespace pollution and generally to improve readability of the code
that still uses the driver directly.
Update the users as needed as well.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Remove unused public APIs from OMAP's iommu driver.
IOMMU functionality should be exposed only via the generic IOMMU API;
this way drivers stay generic, and different IOMMU drivers
don't need to duplicate similar functionalities.
The rest of the API still exposed by OMAP's iommu will be evaluated
and eventually either added to the generic IOMMU API (if relevant),
or completely removed.
The intention is that OMAP's iommu driver will eventually not expose
any public API.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Remove unused functionality from OMAP's iovmm module.
The intention is to eventually completely replace iovmm with the
generic DMA-API, so new code that'd need this iovmm functionality
will have to extend the DMA-API instead.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Use PREFETCH_IOTLB to control the content of the called function,
instead of inlining it in the code.
This improves readability of the code, and also prevents an "unused
function" warning to show up when PREFETCH_IOTLB isn't set.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Stop exporting functions that are used only within the iommu
driver itself.
Eventually OMAP's iommu driver should only expose API via the generic
IOMMU framework.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Move OMAP's iommu drivers to the dedicated iommu drivers folder.
While OMAP's iovmm (virtual memory manager) driver does not strictly
belong to the iommu drivers folder, move it there as well, because
it's by no means OMAP-specific (in concept. technically it is still
coupled with OMAP's iommu).
Eventually, iovmm will be completely replaced with the generic,
iommu-based, dma-mapping API.
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Migrate OMAP's iommu driver to the generic IOMMU API, so users can stay
generic, and any generic IOMMU functionality can be developed once
in the generic framework.
Migrate omap's iovmm (virtual memory manager) to the generic IOMMU API,
and adapt omap3isp as needed, so the latter won't break.
The plan is to eventually remove iovmm completely by replacing it
with the (upcoming) IOMMU-based DMA-API.
Tested on OMAP3 (with omap3isp) and OMAP4 (with rpmsg/remoteproc).
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
After merging the staging tree, today's linux-next build (x86_64
allmodconfig) failed like this:
drivers/staging/rtl8192e/rtl_core.c:2917:2: error: unknown field 'ndo_set_multicast_list' specified in initializer
Caused by commit 94a799425e ("From: wlanfae <wlanfae@realtek.com>" -
really "[PATCH 1/8] rtl8192e: Import new version of driver from realtek"
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
