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2018-01-26block: remove smart1,2.hCorentin Labbe
smart1,2.h is unused since commit d436641439e0 ("cpqarray: remove it from the kernel") Remove it from tree. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-01-26Input: mms114 - add support for mms152Simon Shields
MMS152 has no configuration registers, but the packet format used in interrupts is identical to mms114. Signed-off-by: Simon Shields <simon@lineageos.org> Reviewed-by: Andi Shyti <andi.shyti@samsung.com> Tested-by: Andi Shyti <andi.shyti@samsung.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-26Input: mms114 - drop platform data and use generic APIsSimon Shields
The MMS114 platform data has no in-tree users, so drop it. Switch to using the standard touchscreen properties via touchscreen_parse_properties(), and move the old DT parsing code to use device_property_*() APIs. Finally, use touchscreen_report_pos to report x/y coordinates and drop the custom x/y inversion code. Signed-off-by: Simon Shields <simon@lineageos.org> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Andi Shyti <andi.shyti@samsung.com> Tested-by: Andi Shyti <andi.shyti@samsung.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-26Input: mms114 - mark as direct input deviceDmitry Torokhov
mms14 is a touchscreen and thus a direct input device; let's mark it as such. This also allows us to drop some initialization code as input_init_mt_slots() will do that for us. Also add error handling for input_mt_init_slots(). Reviewed-by: Simon Shields <simon@lineageos.org> Tested-by: Simon Shields <simon@lineageos.org> Reviewed-by: Andi Shyti <andi.shyti@samsung.com> Tested-by: Andi Shyti <andi.shyti@samsung.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-26Input: mms114 - do not clobber interrupt triggerDmitry Torokhov
Rely on the platform (device tree, ACPI, etc) to properly configure interrupt trigger/polarity instead of hardcoding the falling edge. Reviewed-by: Simon Shields <simon@lineageos.org> Tested-by: Simon Shields <simon@lineageos.org> Reviewed-by: Andi Shyti <andi.shyti@samsung.com> Tested-by: Andi Shyti <andi.shyti@samsung.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2018-01-26ixgbe: don't set RXDCTL.RLPML for 82599Emil Tantilov
commit 2de6aa3a666e ("ixgbe: Add support for padding packet") Uses RXDCTL.RLPML to limit the maximum frame size on Rx when using build_skb. Unfortunately that register does not work on 82599. Added an explicit check to avoid setting this register on 82599 MAC. Extended the comment related to the setting of RXDCTL.RLPML to better explain its purpose. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-01-26ixgbe: Fix && vs || typoDan Carpenter
"offset" can't be both 0x0 and 0xFFFF so presumably || was intended instead of &&. That matches with how this check is done in other functions. Fixes: 73834aec7199 ("ixgbe: extend firmware version support") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-01-26ixgbe: add support for reporting 5G link speedPaul Greenwalt
Since 5G link speed is supported by some devices, add reporting of 5G link speed. Signed-off-by: Paul Greenwalt <paul.greenwalt@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-01-26ixgbe: Don't report unsupported timestamping filters for X550Miroslav Lichvar
The current code enables on X550 timestamping of all packets for any filter, which means ethtool should not report any PTP-specific filters as unsupported. Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Acked-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-01-26ixgbe: use ARRAY_SIZE for array sizing calculation on array bufColin Ian King
Use the ARRAY_SIZE macro on array buf to determine size of the array. Improvement suggested by coccinelle. Signed-off-by: Colin Ian King <colin.king@canonical.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-01-26ixgbevf: use ARRAY_SIZE for various array sizing calculationsColin Ian King
Use the ARRAY_SIZE macro on various arrays to determine size of the arrays. Improvement suggested by coccinelle. Signed-off-by: Colin Ian King <colin.king@canonical.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-01-26ixgbevf: don't bother clearing tx_buffer_info in ixgbevf_clean_tx_ring()Emil Tantilov
In the case of the Tx rings we need to only clear the Tx buffer_info when we are resetting the rings. Ideally we do this when we configure the ring to bring it back up instead of when we are taking it down in order to avoid dirtying pages we don't need to. In addition we don't need to clear the Tx descriptor ring since we will fully repopulate it when we begin transmitting frames and next_to_watch can be cleared to prevent the ring from being cleaned beyond that point instead of needing to touch anything in the Tx descriptor ring. Finally with these changes we can avoid having to reset the skb member of the Tx buffer_info structure in the cleanup path since the skb will always be associated with the first buffer which has next_to_watch set. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-01-26arm64: Fix TTBR + PAN + 52-bit PA logic in cpu_do_switch_mmSteve Capper
In cpu_do_switch_mm(.) with ARM64_SW_TTBR0_PAN=y we apply phys_to_ttbr to a value that already has an ASID inserted into the upper bits. For 52-bit PA configurations this then can give us TTBR0_EL1 registers that cause translation table walks to attempt to access non-zero PA[51:48] spuriously. Ultimately leading to a Synchronous External Abort on level 1 translation. This patch re-arranges the logic in cpu_do_switch_mm(.) such that phys_to_ttbr is called before the ASID is inserted into the TTBR0 value. Fixes: 6b88a32c7af6 ("arm64: kpti: Fix the interaction between ASID switching and software PAN") Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com> Tested-by: Kristina Martsenko <kristina.martsenko@arm.com> Reviewed-by: Kristina Martsenko <kristina.martsenko@arm.com> Signed-off-by: Steve Capper <steve.capper@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2018-01-26Merge branch 'nvme-4.16' of git://git.infradead.org/nvme into for-4.16/blockJens Axboe
Pull NVMe fixes from Christoph: "The additional week before the 4.15 release gave us time for a few more nvme fixes, as well as the nifty trace points from Johannes" * 'nvme-4.16' of git://git.infradead.org/nvme: nvme: add tracepoint for nvme_complete_rq nvme: add tracepoint for nvme_setup_cmd nvme-pci: introduce RECONNECTING state to mark initializing procedure nvme-rdma: remove redundant boolean for inline_data nvme: don't free uuid pointer before printing it nvme-pci: Suspend queues after deleting them nvme-pci: Fix queue double allocations
2018-01-26Merge remote-tracking branch 'spi/topic/xilinx' into spi-nextMark Brown
2018-01-26Merge remote-tracking branches 'spi/topic/pxa2xx', 'spi/topic/s3c64xx', ↵Mark Brown
'spi/topic/sh-msiof', 'spi/topic/sirf' and 'spi/topic/sun6i' into spi-next
2018-01-26Merge remote-tracking branches 'spi/topic/fsl-dspi', 'spi/topic/imx', ↵Mark Brown
'spi/topic/jcore', 'spi/topic/meson' and 'spi/topic/orion' into spi-next
2018-01-26Merge remote-tracking branches 'spi/topic/a3700', 'spi/topic/atmel', ↵Mark Brown
'spi/topic/bcm53xx', 'spi/topic/davinci' and 'spi/topic/dw' into spi-next
2018-01-26Merge remote-tracking branches 'spi/fix/imx' and 'spi/fix/sh-msiof' into ↵Mark Brown
spi-linus
2018-01-26Merge remote-tracking branch 'regulator/topic/tps65218' into regulator-nextMark Brown
2018-01-26Merge remote-tracking branches 'regulator/topic/doc' and ↵Mark Brown
'regulator/topic/sc2731' into regulator-next
2018-01-26Merge remote-tracking branch 'regulator/topic/qcom_spmi' into regulator-nextMark Brown
2018-01-26Merge remote-tracking branch 'regulator/topic/core' into regulator-nextMark Brown
2018-01-26regulator: Fix build errorMark Brown
3d67fe950707 (regulator: core: Refactor regulator_list_voltage()) missed one user of regulator_list_voltage(), update for that. Signed-off-by: Mark Brown <broonie@kernel.org>
2018-01-26Merge branch 'topic/suspend' of ↵Mark Brown
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-core
2018-01-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) The per-network-namespace loopback device, and thus its namespace, can have its teardown deferred for a long time if a kernel created TCP socket closes and the namespace is exiting meanwhile. The kernel keeps trying to finish the close sequence until it times out (which takes quite some time). Fix this by forcing the socket closed in this situation, from Dan Streetman. 2) Fix regression where we're trying to invoke the update_pmtu method on route types (in this case metadata tunnel routes) that don't implement the dst_ops method. Fix from Nicolas Dichtel. 3) Fix long standing memory corruption issues in r8169 driver by performing the chip statistics DMA programming more correctly. From Francois Romieu. 4) Handle local broadcast sends over VRF routes properly, from David Ahern. 5) Don't refire the DCCP CCID2 timer endlessly, otherwise the socket can never be released. From Alexey Kodanev. 6) Set poll flags properly in VSOCK protocol layer, from Stefan Hajnoczi. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: VSOCK: set POLLOUT | POLLWRNORM for TCP_CLOSING dccp: don't restart ccid2_hc_tx_rto_expire() if sk in closed state net: vrf: Add support for sends to local broadcast address r8169: fix memory corruption on retrieval of hardware statistics. net: don't call update_pmtu unconditionally net: tcp: close sock if net namespace is exiting
2018-01-26Merge tag 'drm-fixes-for-v4.15-rc10-2' of ↵Linus Torvalds
git://people.freedesktop.org/~airlied/linux Pull drm fixes from Dave Airlie: "A fairly urgent nouveau regression fix for broken irqs across suspend/resume came in. This was broken before but a patch in 4.15 has made it much more obviously broken and now s/r fails a lot more often. The fix removes freeing the irq across s/r which never should have been done anyways. Also two vc4 fixes for a NULL deference and some misrendering / flickering on screen" * tag 'drm-fixes-for-v4.15-rc10-2' of git://people.freedesktop.org/~airlied/linux: drm/nouveau: Move irq setup/teardown to pci ctor/dtor drm/vc4: Fix NULL pointer dereference in vc4_save_hang_state() drm/vc4: Flush the caches before the bin jobs, as well.
2018-01-26Merge tag 'socfpga_dts_for_v4.16' of ↵Arnd Bergmann
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into next/dt Pull "SoCFPGA DTS updates for v4.16" from Dinh Nguyen: - Stratix10 platform updates - Fix SPI interrupt numbers - Enable USB - Disable over-current for Arria10 devkit * tag 'socfpga_dts_for_v4.16' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux: arm64: dts: stratix10: fix SPI settings ARM: dts: socfpga: add i2c reset signals arm64: dts: stratix10: add USB ECC reset bit arm64: dts: stratix10: enable USB on the devkit ARM: dts: socfpga: disable over-current for Arria10 USB devkit
2018-01-26Merge tag 'omap-for-v4.16/ti-sysc-fix-signed' of ↵Arnd Bergmann
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/drivers Pull "one ti-sysc driver fix for v4.16 merge window" from Tony Lindgren: One minor fix for ti-sysc smartreflex sysc mask that prevents idling the smartreflex interconnect target module for device tree based probing. * tag 'omap-for-v4.16/ti-sysc-fix-signed' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: bus: ti-sysc: Fix smartreflex sysc mask
2018-01-26Merge tag 'zynqmp-soc-fixes-for-4.16' of ↵Arnd Bergmann
https://github.com/Xilinx/linux-xlnx into next/drivers Pull "arm: Xilinx ZynqMP SoC fixes for v4.16" from Michal Simek: - Fix Kconfig dependency - Fix vcu clkoutdiv calculation * tag 'zynqmp-soc-fixes-for-4.16' of https://github.com/Xilinx/linux-xlnx: soc: xilinx: Fix Kconfig alignment soc: xilinx: xlnx_vcu: Use bitwise & rather than logical && on clkoutdiv soc: xilinx: xlnx_vcu: Depends on HAS_IOMEM for xlnx_vcu
2018-01-26VSOCK: set POLLOUT | POLLWRNORM for TCP_CLOSINGStefan Hajnoczi
select(2) with wfds but no rfds must return when the socket is shut down by the peer. This way userspace notices socket activity and gets -EPIPE from the next write(2). Currently select(2) does not return for virtio-vsock when a SEND+RCV shutdown packet is received. This is because vsock_poll() only sets POLLOUT | POLLWRNORM for TCP_CLOSE, not the TCP_CLOSING state that the socket is in when the shutdown is received. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-26dccp: don't restart ccid2_hc_tx_rto_expire() if sk in closed stateAlexey Kodanev
ccid2_hc_tx_rto_expire() timer callback always restarts the timer again and can run indefinitely (unless it is stopped outside), and after commit 120e9dabaf55 ("dccp: defer ccid_hc_tx_delete() at dismantle time"), which moved ccid_hc_tx_delete() (also includes sk_stop_timer()) from dccp_destroy_sock() to sk_destruct(), this started to happen quite often. The timer prevents releasing the socket, as a result, sk_destruct() won't be called. Found with LTP/dccp_ipsec tests running on the bonding device, which later couldn't be unloaded after the tests were completed: unregister_netdevice: waiting for bond0 to become free. Usage count = 148 Fixes: 2a91aa396739 ("[DCCP] CCID2: Initial CCID2 (TCP-Like) implementation") Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com> Reviewed-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-26Update the RISC-V MAINTAINERS filePalmer Dabbelt
Now that we're upstream in Linux we've been able to make some infrastructure changes so our port works a bit more like other ports. Specifically: * We now have a mailing list specific to the RISC-V Linux port, hosted at lists.infreadead.org. * We now have a kernel.org git tree where work on our port is coordinated. This patch changes the RISC-V maintainers entry to reflect these new bits of infrastructure. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-01-26Merge branch 'cxgb4-fix-dump-collection-when-firmware-crashed'David S. Miller
Rahul Lakkireddy says: ==================== cxgb4: fix dump collection when firmware crashed Patch 1 resets FW_OK flag, if firmware reports error. Patch 2 fixes incorrect condition for using firmware LDST commands. Patch 3 fixes dump collection logic to use backdoor register access to collect dumps when firmware is crashed. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-26cxgb4: use backdoor access to collect dumps when firmware crashedRahul Lakkireddy
Fallback to backdoor register access to collect dumps if firmware is crashed. Fixes TID, SGE Queue Context, and MPS TCAM dump collection. Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-26cxgb4: fix incorrect condition for using firmware LDST commandsRahul Lakkireddy
Only contact firmware if it's alive _AND_ if use_bd (use backdoor access) is not set when issuing FW_LDST_CMD. Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-26cxgb4: reset FW_OK flag on firmware crashRahul Lakkireddy
If firmware reports error, reset FW_OK flag. Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com> Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-26Merge branch 'hns3-next'David S. Miller
Peng Li says: ==================== net: hns3: add support ethtool_ops.{set|get}_coalesce for VF This patch-set adds ethtool_ops.{get|set}_coalesce to VF and fix one related bug. HNS3 PF and VF driver use the common enet layer, as the ethtool_ops.{get|set}_coalesce to PF have upstreamed, just need add the ops to hns3vf_ethtool_ops. [Patch 1/2] fix a related bug for the VF ethtool_ops.{set| get}_coalesce. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-26net: hns3: add int_gl_idx setup for VFFuyun Liang
Just like PF, if the int_gl_idx of VF does not be set, the default interrupt coalesce index of VF is 0. But it should be GL1 for TX queues and GL0 for RX queues. This patch adds the int_gl_idx setup for VF. Fixes: 200ecda42598 ("net: hns3: Add HNS3 VF HCL(Hardware Compatibility Layer) Support") Signed-off-by: Fuyun Liang <liangfuyun1@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-26net: hns3: add get/set_coalesce support to VFFuyun Liang
This patch adds ethtool_ops.get/set_coalesce support to VF. Since PF and VF share the same get/set_coalesce interface, we only need to set hns3_get/set_coalesce to the ethtool_ops when supporting get/set_coalesce for VF. Signed-off-by: Fuyun Liang <liangfuyun1@huawei.com> Signed-off-by: Peng Li <lipeng321@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-26Merge tag 'linux-can-next-for-4.16-20180126' of ↵David S. Miller
ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next Marc Kleine-Budde says: ==================== pull-request: can-next 2018-01-26 this is a pull request for net-next/master consisting of 3 patches. The first two patches target the CAN documentation. The first is by me and fixes pointer to location of fsl,mpc5200-mscan node in the mpc5200 documentation. The second patch is by Robert Schwebel and it converts the plain ASCII documentation to restructured text. The third patch is by Fabrizio Castro add the r8a774[35] support to the rcar_can dt-bindings documentation. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-26regulator: core: Refactor regulator_list_voltage()Maciej Purski
Change _regulator_list_voltage() argument from regulator to regulator_dev in order to provide better separation of core layers. Allow calling _regulator_list_voltage() from functions, with regulator_dev argument. This refactoring is needed in order to implement setting voltage of coupled regulators. Signed-off-by: Maciej Purski <m.purski@samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-01-26regulator: core: Move of_find_regulator_by_node() to of_regulator.cMaciej Purski
As of_find_regulator_by_node() is an of function it should be moved from core.c to of_regulator.c. It provides better separation of device tree functions from the core and allows other of_functions in of_regulator.c to resolve device_node to regulator_dev. This will be useful for implementation of parsing coupled regulators properties. Declare of_find_regulator_by_node() function in internal.h as well as regulator_class and dev_to_rdev(), as they are needed by of_find_regulator_by_node(). Signed-off-by: Maciej Purski <m.purski@samsung.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-01-26ixgbevf: improve performance and reduce size of ixgbevf_tx_map()Emil Tantilov
Based on commit ec718254cbfe ("ixgbe: Improve performance and reduce size of ixgbe_tx_map") This change is meant to both improve the performance and reduce the size of ixgbevf_tx_map(). Expand the work done in the main loop by pushing first into tx_buffer. This allows us to pull in the dma_mapping_error check, the tx_buffer value assignment, and the initial DMA value assignment to the Tx descriptor. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-01-26ixgbevf: clear rx_buffer_info in configure instead of cleanEmil Tantilov
Based on commit d2bead576e67 ("igb: Clear Rx buffer_info in configure instead of clean") This change makes it so that instead of going through the entire ring on Rx cleanup we only go through the region that was designated to be cleaned up and stop when we reach the region where new allocations should start. In addition we can avoid having to perform a memset on the Rx buffer_info structures until we are about to start using the ring again. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-01-26ixgbevf: add counters for Rx page allocationsEmil Tantilov
We already had placehloders for failed page and buffer allocations. Added alloc_rx_page and made sure the stats are properly updated and exposed in ethtool. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-01-26ixgbevf: update code to better handle incrementing page countEmil Tantilov
Based on commit bd4171a5d4c2 ("igb: update code to better handle incrementing page count") Update the driver code so that we do bulk updates of the page reference count instead of just incrementing it by one reference at a time. The advantage to doing this is that we cut down on atomic operations and this in turn should give us a slight improvement in cycles per packet. In addition if we eventually move this over to using build_skb the gains will be more noticeable. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-01-26ixgbevf: add support for DMA_ATTR_SKIP_CPU_SYNC/WEAK_ORDERINGEmil Tantilov
Based on commit 5be5955425c2 ("igb: update driver to make use of DMA_ATTR_SKIP_CPU_SYNC") and commit 7bd175928280 ("igb: Add support for DMA_ATTR_WEAK_ORDERING") Convert the calls to dma_map/unmap_page() to the attributes version and add DMA_ATTR_SKIP_CPU_SYNC/WEAK_ORDERING which should help improve performance on some platforms. Move sync_for_cpu call before we perform a prefetch to avoid invalidating the first 128 bytes of the packet on architectures where that call may invalidate the cache. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-01-26ixgbevf: use length to determine if descriptor is doneEmil Tantilov
Based on: commit 7ec0116c9131 ("igb: Use length to determine if descriptor is done") This change makes it so that we use the length of the packet instead of the DD status bit to determine if a new descriptor is ready to be processed. The obvious advantage is that it cuts down on reads as we don't really even need the DD bit if going from a 0 to a non-zero value on size is enough to inform us that the packet has been completed. In addition we only reset the Rx descriptor length for descriptor zero when resetting a ring instead of having to do a memset with 0 over the entire ring. By doing this we can save some time on initialization. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
2018-01-26ixgbevf: only DMA sync frame lengthEmil Tantilov
Based on commit 64f2525ca4e7 ("igb: Only DMA sync frame length") On some architectures synching a buffer for DMA may be expensive. Instead of the entire 2K receive buffer only synchronize the length of the frame, which will typically be the MTU or smaller. Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com> Tested-by: Krishneil Singh <krishneil.k.singh@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
generated by cgit (git 2.34.1) at 2025-09-17 03:00:29 +0000