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2017-04-12ieee802154: Add CA8210 IEEE 802.15.4 device driverHarry Morris3-0/+3263
Add driver source and config for softMAC implementation of Cascoda's CA8210 IEEE 802.15.4 transceiver device. The driver mimics a common PHY-only implementation despite the CA8210 being a hardMAC device which exposes a SAP interface to the fully integrated MAC. The chip is a modem-only device with an integrated processor which runs the 802.15.4 MAC. The chip communicates via full-duplex SPI with additional pins for NIRQ and NRESET. The chip can also output its 16MHz clock to a GPIO with a configurable divider. The driver can be configured to implement a debugfs node that provides access to the SAP-based API to drive mechanisms not currently supported by the standard kernel interface. Signed-off-by: Harry Morris <h.morris@cascoda.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2017-04-12Bluetooth: hci_bcm: Support platform enumerationAndy Shevchenko1-17/+33
Until now the driver supports only ACPI enumeration. Nevertheless Intel Edison SoM has Broadcom Wi-Fi + BT chip and neither ACPI nor DT enumeration mechanism. Enable pure platform driver in order to support Intel Edison SoM. Cc: Jarkko Nikula <jarkko.nikula@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2017-04-12Bluetooth: btmrvl: wake system up when receives a wake irqJeffy Chen1-2/+7
Currrently we are disabling this wake irq after receiving it. If this happens before we finish suspend and the pm event check is disabled, the system will continue suspending, and this irq would not work again. We may need to abort system suspend to avoid that. Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2017-04-12Bluetooth: btusb: wake system up when receives a wake irqJeffy Chen1-0/+2
Currrently we are disabling this wake irq after receiving it. If this happens before we finish suspend and the pm event check is disabled, the system will continue suspending, and this irq would not work again. We may need to abort system suspend to avoid that. Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2017-04-12Bluetooth: btrtl: Change message for missing config fileLarry Finger1-5/+8
The message concerning missing config files for 8723b, 8821a, and 8761a should have been issued with BT_INFO() rather than BT_ERR() as this condition is not fatal. After looking at that code, I have reworked the logic to log such messages only if the device needs such a config file. At the moment, only the 8822b fits that description. Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net> Acked-by: 陆朱伟 <alex_lu@realsil.com.cn> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2017-04-12Bluetooth: Added support for Rivet Networks Killer 1535Gabriel1-0/+1
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2017-04-12Bluetooth: hci_intel: Add support Intel Bluetooth device 9160/9260 for UARTTedd Ho-Jeong An1-0/+1
This patch adds support for Intel Bluetooth device 9160/9260 also known as ThunderPeak(ThP) for UART. Signed-off-by: Tedd Ho-Jeong An <tedd.an@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2017-04-12Bluetooth: hci_intel: Fix firmware file name to use hw_variantTedd Ho-Jeong An1-6/+10
The format of Intel Bluetooth firmware for bootloader product is ibt-<hw_variant>-<device_revision_id>.sfi and .ddc. This patch uses a hw_variant value read from the device during runtime to form the firmware filenames instead of using a constant value, so it can support multiple prouducts. Signed-off-by: Tedd Ho-Jeong An <tedd.an@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2017-04-12Bluetooth: btusb: Add support for Intel Bluetooth devices 9160/9260 [8087:0025]Marcel Holtmann1-0/+2
The new Bluetooth devices 9160/9260 (also known as ThunderPeak) devices from Intel use the same firmware loading mechanism as previous generation. So include the new USB product identifier and whitelist the hardware variant. T: Bus=02 Lev=02 Prnt=03 Port=00 Cnt=01 Dev#= 8 Spd=12 MxCh= 0 D: Ver= 2.01 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=8087 ProdID=0025 Rev= 0.02 C:* #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA I:* If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=81(I) Atr=03(Int.) MxPS= 64 Ivl=1ms E: Ad=02(O) Atr=02(Bulk) MxPS= 64 Ivl=0ms E: Ad=82(I) Atr=02(Bulk) MxPS= 64 Ivl=0ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=03(O) Atr=01(Isoc) MxPS= 0 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 0 Ivl=1ms I: If#= 1 Alt= 1 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=03(O) Atr=01(Isoc) MxPS= 9 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 9 Ivl=1ms I: If#= 1 Alt= 2 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=03(O) Atr=01(Isoc) MxPS= 17 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 17 Ivl=1ms I: If#= 1 Alt= 3 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=03(O) Atr=01(Isoc) MxPS= 25 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 25 Ivl=1ms I: If#= 1 Alt= 4 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=03(O) Atr=01(Isoc) MxPS= 33 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 33 Ivl=1ms I: If#= 1 Alt= 5 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=03(O) Atr=01(Isoc) MxPS= 49 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 49 Ivl=1ms I: If#= 1 Alt= 6 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb E: Ad=03(O) Atr=01(Isoc) MxPS= 63 Ivl=1ms E: Ad=83(I) Atr=01(Isoc) MxPS= 63 Ivl=1ms Bluetooth: hci0: Bootloader revision 0.1 build 42 week 52 2015 Bluetooth: hci0: Device revision is 2 Bluetooth: hci0: Secure boot is enabled Bluetooth: hci0: OTP lock is disabled Bluetooth: hci0: API lock is disabled Bluetooth: hci0: Debug lock is disabled Bluetooth: hci0: Minimum firmware build 1 week 10 2014 < HCI Command: Read Local Version Information (0x04|0x0001) plen 0 > HCI Event: Command Complete (0x0e) plen 12 Read Local Version Information (0x04|0x0001) ncmd 1 Status: Success (0x00) HCI version: Bluetooth 5.0 (0x09) - Revision 256 (0x0100) LMP version: Bluetooth 5.0 (0x09) - Subversion 256 (0x0100) Manufacturer: Intel Corp. (2) Based on original patch from Jaya Praveen G <jaya.p.g@linux.intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Tested-by: Tedd Ho-Jeong An <tedd.an@intel.com> Signed-off-by: Tedd Ho-Jeong An <tedd.an@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2017-04-12Bluetooth: Use switch statement for Intel hardware variantsTedd Ho-Jeong An2-9/+18
Multiple new hardware variants are planned and the simple if statement would get really complicated and unreadable. So instead replace it with a simple switch statement. The change is applied to both USB and UART. Based-on-patch-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Tedd Ho-Jeong An <tedd.an@intel.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2017-04-12Bluetooth: bluecard: use setup_timerGeliang Tang1-3/+2
Use setup_timer() instead of init_timer() to simplify the code. Signed-off-by: Geliang Tang <geliangtang@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2017-04-12Bluetooth: hci_bcm: Fix clock (un)prepareJohn Keeping1-2/+2
The hci_bcm driver currently does not prepare/unprepare the clock and goes directly to enable, but as the documentation for clk_enable says, clk_prepare must be called before clk_enable. Signed-off-by: John Keeping <john@metanate.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2017-04-12Bluetooth: btmrvl: fix spelling mistake: "unregester" -> "unregister"Colin Ian King1-1/+1
trivial fix to spelling mistake in debug message Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
2017-04-12ftgmac100: Set default ring sizes to 128 entriesBenjamin Herrenschmidt1-2/+2
I haven't seen any improvement above that size on the machines I've tested with. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-12ftgmac100: Make ring sizes configurable via ethtoolBenjamin Herrenschmidt1-56/+148
We set an arbitrary max at 1024 since we pre-allocate the actual descriptor arrays and skb arrays to the full size to keep the code a bit simpler and avoid allocation failures in the reset task. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-12ftgmac100: Add more register inits in ftgmac100_init_hw()Benjamin Herrenschmidt1-0/+36
Clear stale interrupts on entry, configure FIFO sizes, set FIFO thresholds, configure interrupt mitigation. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-12ftgmac100: Open code remaining register writesBenjamin Herrenschmidt1-33/+20
The helpers just take space but don't provide much value. Simple one line comments are more explanatory. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-12ftgmac100: Rename ftgmac100_setup_mac to ftgmac100_initial_macBenjamin Herrenschmidt1-2/+2
To remove more confusion. This function is about obtaining the initial MAC address at driver probe time. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-12ftgmac100: Rename ftgmac100_set_mac to ftgmac100_write_mac_addrBenjamin Herrenschmidt1-3/+3
To avoid confusion with the ndo callback and generally be clearer about the purpose of that function Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-12ftgmac100: Set netdev->hw_featuresBenjamin Herrenschmidt1-3/+4
So features can be turned on/off via ethtool Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-12ftgmac100: Disable HW checksum generation on AST2400, enable on othersBenjamin Herrenschmidt1-6/+6
We found out that HW checksum generation only works from AST2500 onward. This disables it on AST2400 and removes the "no-hw-checksum" properties in the device-trees. The problem we had wasn't related to NC-SI. Also rework the logic testing for that property so it can be used to disable HW checksum generation and checking regardless of whether NC-SI is used or not in case other variants out there need this. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-12ftgmac100: Use device "compatible" property, not machine.Benjamin Herrenschmidt1-7/+9
We test for aspeed chips to handle a couple of special cases, but we do that by checking the machine type which isn't right. Instead check the actual device compatible property. This also updates the dtsi files for the aspeed SoC to match. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-12ftgmac100: Upgrade to NETIF_F_HW_CSUMBenjamin Herrenschmidt1-15/+25
The documentation describes NETIF_F_IP_CSUM as deprecated so let's switch to NETIF_F_HW_CSUM and use the helper to handle unhandled protocols. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-12net: stmmac: use netif_set_real_num_{rx,tx}_queuesJoao Pinto1-2/+2
In the submission of the lastest multiple buffer patch set, this fix was lost. I am sending this patch to put it right again. The fix was originally proposed by Arnd Bergmann. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Joao Pinto <jpinto@synopsys.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11s390/qeth: remove unimplemented gdev routinesJulian Wiedmann2-19/+2
prepare() and complete() are not implemented by any discipline, so just drop all the indirection. Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Reviewed-by: Hans Wippel <hwippel@linux.vnet.ibm.com> Reviewed-by: Thomas Richter <tmricht@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11s390/qeth: use LINK_MODE_* to report the link characteristicsJulian Wiedmann1-24/+47
LINK_MODE_* replaces the u32-limited SUPPORTED_* / ENABLED_* definitions. Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Reviewed-by: Thomas Richter <tmricht@linux.vnet.ibm.com> Reviewed-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11s390/qeth: convert to ETHTOOL_GLINKSETTINGS APIJulian Wiedmann4-42/+40
get_settings() is deprecated and lacks support for higher link speeds, so implement get_link_ksettings() instead. Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Reviewed-by: Thomas Richter <tmricht@linux.vnet.ibm.com> Reviewed-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11s390/qeth: clean up qeth_set_ecmd_adv_sup()Julian Wiedmann1-29/+28
In preparation for moving to get_link_ksettings(), clean up how we build the supported and advertised port/speed masks. Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Reviewed-by: Thomas Richter <tmricht@linux.vnet.ibm.com> Reviewed-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11s390/qeth: use and remove some definesJulian Wiedmann2-3/+2
1. a buffer has 16 is_header flags, because that's its # of elements 2. replace the last occurrence of QETH_HEADER_SIZE, and remove it Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Acked-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11s390/qeth: use correct return type for hard_start_xmit()Julian Wiedmann2-2/+4
ndo_start_xmit() expects us to return netdev_tx_t here... Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Acked-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11s390/qeth: remove unused parameterJulian Wiedmann4-5/+4
'elements_needed' is not used in qeth_do_send_packet_fast(), so consequently remove it. Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Acked-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11s390/qeth: move gdev shutdown handler to coreJulian Wiedmann4-27/+6
Duplicated code. Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Acked-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11s390/qeth: move NAPI poll routine to coreJulian Wiedmann4-169/+97
Identical code, we just need to call a layer-specific hook to process any received buffer. qeth_buffer_reclaim_work() is shuffled around to avoid a forward declaration for qeth_queue_input_buffer(). Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Acked-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11s390/qeth: move common ioctl handling to coreJulian Wiedmann4-99/+64
There's a number of layer-independent ioctls that we can handle in core, and reduce code duplication. For layer-specific ioctls, add a do_ioctl() discipline hook. Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Acked-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11net: fec: add ERR007885 for i.MX6ul enet IPFugang Duan1-2/+3
The errata ERR007885 HW fix don't add to i.MX6ul ENET IP version, so add sw workaroud for the chip. Signed-off-by: Fugang Duan <fugang.duan@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11net: fec: correct the errata number comment typoFugang Duan1-1/+1
Correct the errata number ERR006358 comment typo. Signed-off-by: Fugang Duan <fugang.duan@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11net: fec: add phy-reset-gpios PROBE_DEFER checkFugang Duan1-8/+18
Many boards use i2c/spi expander gpio as phy-reset-gpios and these gpios maybe registered after fec port, driver should check the return value of .of_get_named_gpio(). Signed-off-by: Fugang Duan <B38611@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11net: fec: pass ->dev to dma_alloc__coherent() APIFugang Duan1-2/+2
In aarch64 system, it requires to trasfer ->dev to dma_alloc_coherent() API, otherwise allocate failed and print kernel warning. Signed-off-by: Fugang Duan <B38611@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11net: fec: avoid BD pointer type cast to 32bitFugang Duan1-2/+2
In aarch64 system, the BD pointer is 64bit, and the high-order 32-bits of the address is effective, so replace usigned with (void *) type to aovid 64bit address is casted to 32bit in .fec_enet_get_nextdesc() and .fec_enet_get_prevdesc() functions. Signed-off-by: Fugang Duan <fugang.duan@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11net: fec: add return value check after calling .of_property_read_u32()Fugang Duan1-2/+2
Add return value check after calling .of_property_read_u32() to avoid the warning reported by coverity. Signed-off-by: Fugang Duan <fugang.duan@nxp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11mlxsw: convert to pci_alloc_irq_vectorsChristoph Hellwig1-7/+6
Trivial conversion as only one vector is supported, but at least we lose the useless msix_entry member in the per-device structure. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Jiri Pirko <jiri@mellanox.com> Reviewed-by: Ido Schimmel <idosch@mellanox.com> Tested-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11PCI: remove pci_enable_msixChristoph Hellwig1-21/+0
Unused now that all callers switched to pci_alloc_irq_vectors. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11net: thunderx: Switch to pci_alloc_irq_vectorsThanneeru Srinivasulu3-96/+40
Remove deprecated pci_enable_msix API in favour of its successor pci_alloc_irq_vectors. Signed-off-by: Thanneeru Srinivasulu <tsrinivasulu@cavium.com> Signed-off-by: Sunil Goutham <sgoutham@cavium.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11net/ena: switch to pci_alloc_irq_vectorsChristoph Hellwig2-45/+12
Remove the deprecated pci_enable_msix API in favour of its successor. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-11net: alx: switch to pci_alloc_irq_vectorsChristoph Hellwig2-80/+54
Remove the deprecated pci_enable_msix API in favour of its successor, and make sure to handle errors during IRQ setup properly. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-10ftgmac100: Remove tx descriptor accessorsBenjamin Herrenschmidt2-114/+69
Directly access the fields when needed. The accessors add clutter not clarity and in some cases cause unnecessary read-modify-write type access on the slow (uncached) descriptor memory. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-10ftgmac100: Add support for fragmented txBenjamin Herrenschmidt1-25/+94
Add NETIF_F_SG and create multiple TX ring entries for skb fragments. On reclaim, the skb is only freed on the segment marked as "last". Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-10ftgmac100: Don't clear tx desc fields unnecessarilyBenjamin Herrenschmidt1-11/+6
Those are non-cachable stores, let's avoid those we don't need. Remove the helper, it's not particularly helpful and since it uses "priv" I can't move it to the header file. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-10ftgmac100: Split tx packet freeing from ftgmac100_tx_complete_packet()Benjamin Herrenschmidt1-17/+21
This moves the packet freeing to a separate function which is also used by ftgmac100_free_buffers() and will be used more in the error path of fragmented sends. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2017-04-10ftgmac100: Move the barrier out of ftgmac100_txdes_set_dma_own()Benjamin Herrenschmidt1-5/+4
We'll use variants of this accessor without barriers when building series of descriptors for fragmented sends Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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