Steinar reported reallocations of skb->head with IPv6, leading to
a warning in skb_try_coalesce()
It turns out iwl3945 has several problems :
1) skb->truesize is underestimated.
We really consume PAGE_SIZE bytes for a fragment,
not the frame length.
2) 128 bytes of initial headroom is a bit low and forces reallocations.
3) We can avoid consuming a full page for small enough frames.
Reported-by: Steinar H. Gunderson <sesse@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Paul Stewart <pstew@google.com>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
In production code, don't use -Werror,
as it causes random compilation failures due to compiler version and options used.
With every new version of gcc, it becomes stricter and report more warnings.
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Add support for TCP and UDP HW checksum offloading.
RX chain is allways configured for offload mode.
In case of checksum error in RX path the DMA L4 error bit(5)
will be set to 1 and driver will drop the packet.
TX checksum offloading is configrable (ethtool -K).
TX descriptors are configured for checksum offload according
to the SKB protocol type (TCP/UDP, IPV4/6), Upon mismatch drop
the TX packet (checksum required but not TCP/UDP IPV4/6 type).
Signed-off-by: Kirshenbaum Erez <erezk@wilocity.com>
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Release fragments in the order of allocation; including one for skb head
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Note that the driver doesn't directly use this field, but it should be
correctly defined in any case.
Signed-off-by: Solomon Peachy <pizza@shaftnet.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
* CUS217 specific initvals have to be programmed.
* iniAdditional is not used for AR9462/AR9565, remove it.
* Handle channel 2484 for regulatory compliance.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Right now, even though these chips support cross-band
FCC, the code is non-functional since we bail out early if
the channelFlags differ. Fix this so that cross-band
FCC works for cards that support this feature.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Fast Channel Change across 2G/5G bands is supported
only by AR9462 and AR9565. Add a HW capability field
to indicate this.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Relegate 2 phy messages to debug status as they create excessive
log spam, noted in multiple bugzillas for brcmsmac v3.8 and up.
This is a follow on to net-next 99e9494069:
brcmsmac: Reduce log spam in heavy tx, make err print in debug
brcmsmac bcma0:0: phyerr 0x10, rate 0x14
brcmsmac bcma0:0: brcms_c_ampdu_dotxstatus_complete:
ampdu tx phy error (0x10)
Signed-off-by: John Greene <jogreene@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The return value of bcma_erom_get_addr_desc() is a unsigned value and it
could wrap around in the two complement writing. This happens for one
core in the BCM4708 SoC.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
It is better to return the actual error code than just -1.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
To make it possible to use the SoC host interface with ARM SoCs do not
depend on the MIPS driver any more.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
These cores were found on a BCM4708 (chipid 53010), this is a ARM SoC
with two Cortex A9 cores.
bcma: bus0: Found chip with id 0xCF12, rev 0x00 and package 0x02
bcma: bus0: Core 0 found: ChipCommon (manuf 0x4BF, id 0x800, rev 0x2A, class 0x0)
bcma: bus0: Core 1 found: DMA (manuf 0x4BF, id 0x502, rev 0x01, class 0x0)
bcma: bus0: Core 2 found: GBit MAC (manuf 0x4BF, id 0x82D, rev 0x04, class 0x0)
bcma: bus0: Core 3 found: GBit MAC (manuf 0x4BF, id 0x82D, rev 0x04, class 0x0)
bcma: bus0: Core 4 found: GBit MAC (manuf 0x4BF, id 0x82D, rev 0x04, class 0x0)
bcma: bus0: Core 5 found: GBit MAC (manuf 0x4BF, id 0x82D, rev 0x04, class 0x0)
bcma: bus0: Core 6 found: PCIe Gen 2 (manuf 0x4BF, id 0x501, rev 0x01, class 0x0)
bcma: bus0: Core 7 found: PCIe Gen 2 (manuf 0x4BF, id 0x501, rev 0x01, class 0x0)
bcma: bus0: Core 8 found: ARM Cortex A9 core (ihost) (manuf 0x4BF, id 0x510, rev 0x01, class 0x0)
bcma: bus0: Core 9 found: USB 2.0 (manuf 0x4BF, id 0x504, rev 0x01, class 0x0)
bcma: bus0: Core 10 found: USB 3.0 (manuf 0x4BF, id 0x505, rev 0x01, class 0x0)
bcma: bus0: Core 11 found: SDIO3 (manuf 0x4BF, id 0x503, rev 0x01, class 0x0)
bcma: bus0: Core 12 found: ARM Cortex A9 JTAG (manuf 0x4BF, id 0x506, rev 0x01, class 0x0)
bcma: bus0: Core 13 found: Denali DDR2/DDR3 memory controller (manuf 0x4BF, id 0x507, rev 0x01, class 0x0)
bcma: bus0: Core 14 found: ROM (manuf 0x4BF, id 0x508, rev 0x01, class 0x0)
bcma: bus0: Core 15 found: NAND flash controller (manuf 0x4BF, id 0x509, rev 0x01, class 0x0)
bcma: bus0: Core 16 found: SPI flash controller (manuf 0x4BF, id 0x50A, rev 0x01, class 0x0)
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Finish all SW context modifications prior to notifying hardware
It used to be race condition: if HW finish Tx and issue Tx completion IRQ very fast,
prior to SW context update in wil_tx_vring, Tx completion will mis-handle descriptor, as
SW part will have no skb pointer stored.
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Enable adding more data to the SW context.
For now, add flag "mapped_as_page", to separate decisions on free-ing skb
and type of DMA mapping.
This allows linking skb itself to any descriptor of fragmented skb.
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
No need to modify HW descriptor, as it will be re-initialized on Tx.
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
When destroying Rx vring, branch for Rx used wrong Tx descriptor:
while SW context was taken for "head", HW descriptor was, by mistake,
taken from "tail"
Signed-off-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The Linksys AE3000 device is based on the RT3573
chipset. The support for this chipset is available
already, and the AE3000 device works with the driver.
Only managed mode works correctly at the moment,
for AP mode additional changes are needed in the
driver.
Also add a new RT2800USB_RT3573 Kconfig option and
only enable support for RT3573 based devices if
that is enabled.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The RT3593 chipset requires different [RT]XWI size
values. Modify the driver to use the correct values.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Support for the RT3593 has been implemented in
the previous changes, so it is safe to mark it
supported in the driver.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Support for the RF3053 has been implemented in
the previous changes, so it is safe to mark it
supported in the driver.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Based on the Ralink DPO_RT5572_LinuxSTA_2.6.0.1_20120629
driver.
Reference:
RT3593_ChipSwitchChannel in chips/rt3593.c
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Based on the Ralink DPO_RT5572_LinuxSTA_2.6.0.1_20120629
driver.
References:
FreqItems3053 in chips/rt3593.c
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The actual code uses two default TX power values.
This is enough for 1T and for 2T devices however
on 3T devices another value is needed for the third
chain.
Add a new field to struct channel_info and initialize
it from the 'rt2800_probe_hw_mode' function. Also modify
the 'rt2800_config_channel' to handle the new field as
well.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The LNA_A[12] gain values are stored at a different
offset in the EEPROM on RT3593 based devices. However
the current code unconditionally reads those values
from the location used by other chipsets.
Fix the code to use the correct EEPROM offset.
Based on the DPO_RT5572_LinuxSTA_2.6.0.1_20120629
driver.
References:
RT3593_EEPROM_RSSI2_OFFSET_ALNAGAIN1_24G_READ in include/chip/rt3593.h
RT3593_EEPROM_RSSI2_OFFSET_ALNAGAIN2_5G_READ in include/chip/rt3593.h
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The reference code uses hardcoded zero TX mixer gain value
for RT3593. Do the same in the rt2x00 driver.
Based on the Ralink DPO_RT5572_LinuxSTA_2.6.0.1_20120629
driver.
Reference:
NICReadEEPROMParameters in common/rtmp_init.c
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Move the TX mixer gain reading code into separate
helper functions in preparation for RT3593 support.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The TX power values in the EEPROM are using
a different format for the RT3593 chip. The
default TX power value uses bits 0..4 only.
Bits 5..8 contains value for fine grained
power control. Additionally, the lower and
upper limits of the TX power values are the
same for both bands.
Improve the rt2800_txpower_to_dev function,
in order to compute the correct default power
values for the RT3593 chip as well.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Introduce a new helper function for converting
the default TX power values from EEPROM into
mac80211 values.
The change improves the readability and it makes
it easier to add support for other chipsets.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
On the RT3593 chipset, BBP register 86 must be
configured by different values based on the RX
antenna numbers.
Configure this register from the 'rt2800_config_ant'
function.
Based on the Ralink DPO_RT5572_LinuxSTA_2.6.0.1_20120629
driver.
Reference:
RT3593_CONFIG_SET_BY_ANTENNA in include/chip/rt3593.h
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The field must be set to 2 instead of 0 for
devices with three TX chains.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Based on the Ralink DPO_RT5572_LinuxSTA_2.6.0.1_20120629
driver.
References:
RTMPReadTxPwrPerRateExt in chips/rt3593.c
RT3593_AsicGetTxPowerOffset in chips/rt3593.c
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Based on the Ralink DPO_RT5572_LinuxSTA_2.6.0.1_20120629
driver.
Reference:
RT3593_PostBBPInitialization in chips/rt3553.c
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Based on the Ralink DPO_RT5572_LinuxSTA_2.6.0.1_20120629
driver.
References:
NICInitRT3593RFRegisters in chips/rt3593.c
RT3593LoadRFNormalModeSetup in chips/rt3593.c
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Based on the Ralink DPO_RT5572_LinuxSTA_2.6.0.1_20120629
driver.
References:
NICInitRT3593BbpRegisters in chips/rt3593.c
NICInitBBP in common/rtmp_init.c
NICInitAsicFromEEPROM in common/rtmp_init.c
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Based on the Ralink DPO_RT5572_LinuxSTA_2.6.0.1_20120629
driver.
Reference:
NICInitRT3593MacRegisters in chips/rt3593.c
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Three-chain devices are using a different
EEPROM layout than the rest of the chipsets.
Add a new map which describes the new layout
and use that for the RT3593 chipset.
The index values has been computed from the
EEPROM_EXT_* defines, which can be found in
the 'include/chip/rt3593.h' file in the
Ralink DPO_RT5572_LinuxSTA_2.6.0.1_20120629
driver.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Instead of assign the offset value to the
enum directly use a new helper function to
convert a rt2800_eeprom_word enum into an
index of the rt2x00_dev->eeprom array.
The patch does not change the existing
behaviour, but makes it possible to add
support for three-chain devices which are
using a different EEPROM layout.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Add a new helper function and use that for reading
single elements of various arrays in the EEPROM.
The patch does not change the current behaviour,
but it allows to use sequential values for the
rt2800_eeprom_word enums. The conversion will be
implemented in a subsequent change.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The patch adds rt2800 specific functions for
EEPROM data access and changes the code to use
these instead of the generic rt2x00_eeprom_*
variants.
To avoid functional changes, the new functions
are wrappers around the corresponding generic
rt2x00_eeprom_* routines for now. Functional
changes will be implemented in additional patches.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
The patch converts the EEPROM_* word address defines
into new enum values. The new enum type will be used
by new functions which will be introduced in subsequent
changes.
The patch contains no functional changes.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Currently, RTS threshold is not handled for HT. Handle
user-specified threshold values for both aggregated
and unaggregated frames. Use the wiphy's threshold
parameter for now, it can be made per-VIF later on.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
When the platform doesn't have rfkill support, i.e. nothing
is connected to the rfkill GPIO, there's little value in
polling the GPIO. Add a Kconfig option to allow disabling
the polling in ath9k.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Convert the mwifiex/pci driver to use dev_pm_ops for power management and
remove Legacy PM handling. This change re-uses existing suspend and resume
interfaces for dev_pm_ops, and changes CONFIG_PM ifdefs to CONFIG_PM_SLEEP
as the driver does not support run-time PM.
Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Acked-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
