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2018-07-27can: peak_canfd: use ndev irq instead of pci_dev oneStephane Grosjean1-3/+3
This cosmetic change should facilitate in the future the use of MSI rather than legacy INTx interrupts. Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-07-27can: peak_canfd: remove useless defined symbolsStephane Grosjean1-3/+0
CANFD_IRQ_SET as well as CANFD_TX_PATH_SET are not used. Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-07-27can: peak_canfd: improves 32-bit alignmentStephane Grosjean1-1/+1
The embedded firmware aligns its messages on 32-bit boundaries. This patch makes sure to browse through the list of received messages while respecting 32-bit alignment. Signed-off-by: Stephane Grosjean <s.grosjean@peak-system.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-07-27can: peak_usb: mark expected switch fall-throughsGustavo A. R. Silva3-0/+4
In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-07-27can: xilinx_can: add support for Xilinx CAN FD coreAnssi Hannula1-44/+259
Add support for Xilinx CAN FD core. The major difference from the previously supported cores is that there are TX mailboxes instead of a TX FIFO and the RX FIFO access method is different. We only transmit one frame at a time to prevent the HW from reordering frames (it uses CAN ID priority order). Support for CAN FD protocol is not added yet. v2: Removed unnecessary "rx-mode" DT property and wrapped some long lines. Signed-off-by: Anssi Hannula <anssi.hannula@bitwise.fi> Cc: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-07-27can: xilinx_can: refactor code in preparation for CAN FD supportAnssi Hannula1-88/+118
Xilinx CAN FD cores are different enough from the previous Zynq and AXI CAN cores that some refactoring of the driver is needed. This commit contains most of the required refactoring to existing code and should not alter behavior on existing supported HW. The changes are: - Reading and writing to frame registers is parametrized to allow reading/writing a different frame in the future. - Slightly misleading (as it did not specify *all* the interrupts supported by the HW) XCAN_INTR_ALL is replaced with specifying the interrupts inline in interrupt enabling code. - xcan_devtype_data.caps is renamed to xcan_devtype_data.flags to allow for flags that define alternative functionality (e.g. mailboxes vs. FIFO) instead of purely additive capabilities. - can_bittiming_const is added to xcan_devtype_data as CAN FD cores will have wider setting ranges. - bus_clk clock name is now determined through xcan_devtype_data instead of comparing compatible string in probe(). - xcan_devtype_data is added to xcan_priv to allow flag checks after probe(). - XCAN_CAP_WATERMARK is now XCAN_FLAG_TXFEMP. CAN FD cores have watermark support but no TXFEMP interrupt, which is what we are actually interested in. - xcan_start_xmit() is split to in two parts to prepare for TX mailboxes instead of FIFO in CAN FD cores. v2: Wrapped some long lines in xcan_write_frame(). Signed-off-by: Anssi Hannula <anssi.hannula@bitwise.fi> Cc: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-07-27dt-bindings: can: xilinx_can: add Xilinx CAN FD bindingsAnssi Hannula1-9/+26
Add compatible string and new attributes to support the Xilinx CAN FD core. Unlike the previously documented Xilinx CAN cores, the CAN FD core has TX mailboxes instead of TX FIFO, and optionally RX mailboxes instead of RX FIFO (selected at core generation time, not switchable at runtime). Add "tx-mailbox-count" and "rx-mailbox-count" to specify the mailbox counts instead of reusing "tx-fifo-depth" and "rx-fifo-depth". The RX FIFO depth is constant 32, but allow it to be specified via "rx-fifo-depth" to match DT usage with Zynq CAN (which has constant RX FIFO of depth of 64). v2: Remove unnecessary "rx-mode" DT property. Signed-off-by: Anssi Hannula <anssi.hannula@bitwise.fi> Cc: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-07-27can: xilinx_can: update stats.tx_bytes after transmissionAnssi Hannula1-4/+2
The driver updates stats.tx_bytes in start_xmit() even though it could do so in TX interrupt handler. Change the code to update tx_bytes in the interrupt handler, using the return value of can_get_echo_skb(). Signed-off-by: Anssi Hannula <anssi.hannula@bitwise.fi> Cc: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-07-27can: xilinx_can: use can_change_state()Anssi Hannula1-27/+7
Replace some custom code with a call to can_change_state(). This subtly changes the error reporting behavior when both RX and TX error counters indicate the same state. Previously, if both RX and TX counters indicated the same state: - if overall state is PASSIVE, report CAN_ERR_CRTL_RX_PASSIVE - if overall state is WARNING, report CAN_ERR_CRTL_TX_WARNING or CAN_ERR_CRTL_RX_WARNING depending on which counter is higher, or CAN_ERR_CRTL_RX_WARNING if the counters have the same value. After this commit: - report RX_* or TX_* depending on which counter is higher, or both if the counters have exactly the same value. This behavior is consistent with many other CAN drivers that use this same code pattern. Tested with the integrated CAN on Zynq-7000 SoC. v2: Simplify resolving states as suggested by Andri Yngvason. Signed-off-by: Anssi Hannula <anssi.hannula@bitwise.fi> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-07-27can: xilinx_can: only report warning and passive states on state changesAnssi Hannula1-1/+2
The xilinx_can driver currently increments error-warning and error-passive statistics on every error interrupt regardless of whether the interface was already in the same state. Similarly, the error frame sent on error interrupts is always sent with CAN_ERR_CRTL_(RX|TX)_(PASSIVE|WARNING) bit set. To make the error-warning and error-passive statistics more useful, add a check to only set the error state when the state has actually been changed. Tested with the integrated CAN on Zynq-7000 SoC. Signed-off-by: Anssi Hannula <anssi.hannula@bitwise.fi> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-07-27can: sja1000: Replace mdelay with usleep_range in pcan_add_channelsJia-Ju Bai1-1/+1
pcan_add_channels() is never called in atomic context. pcan_add_channels() is only called by pcan_probe(), which is only set as ".probe" in struct pcmcia_driver. Despite never getting called from atomic context, pcan_add_channels() calls mdelay() to busily wait. This is not necessary and can be replaced with usleep_range() to avoid busy waiting. This is found by a static analysis tool named DCNS written by myself. And I also manually check it. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-07-27can: sja1000: Replace mdelay with usleep_range in peak_pci_probeJia-Ju Bai1-1/+1
peak_pci_probe() is never called in atomic context. peak_pci_probe() is set as ".probe" in struct pci_driver. Despite never getting called from atomic context, peak_pci_probe() calls mdelay() to busily wait. This is not necessary and can be replaced with usleep_range() to avoid busy waiting. This is found by a static analysis tool named DCNS written by myself. And I also manually check it. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-07-27can: flexcan: Switch to SPDX identifierFabio Estevam1-21/+10
Adopt the SPDX license identifier headers to ease license compliance management. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-07-27can: flexcan: fix flexcan_start_xmit()'s return typeMarc Kleine-Budde1-1/+1
The method ndo_start_xmit() is defined as returning an 'netdev_tx_t', which is a typedef for an enum type, but the implementation in this driver returns an 'int'. Fix this by returning 'netdev_tx_t' in this driver too. Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-07-27can: xilinx: fix xcan_start_xmit()'s return typeLuc Van Oostenryck1-2/+2
The method ndo_start_xmit() is defined as returning an 'netdev_tx_t', which is a typedef for an enum type, but the implementation in this driver returns an 'int'. Fix this by returning 'netdev_tx_t' in this driver too. Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> Acked-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-07-27can: sun4i: fix sun4ican_start_xmit()'s return typeLuc Van Oostenryck1-1/+1
The method ndo_start_xmit() is defined as returning an 'netdev_tx_t', which is a typedef for an enum type, but the implementation in this driver returns an 'int'. Fix this by returning 'netdev_tx_t' in this driver too. Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-07-27can: janz-ican3: fix ican3_xmit()'s return typeLuc Van Oostenryck1-1/+1
The method ndo_start_xmit() is defined as returning an 'netdev_tx_t', which is a typedef for an enum type, but the implementation in this driver returns an 'int'. Fix this by returning 'netdev_tx_t' in this driver too. Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-07-27can: dev: enable multi-queue for SocketCAN devicesZhu Yi2-4/+11
The existing SocketCAN implementation provides alloc_candev() to allocate a CAN device using a single Tx and Rx queue. This can lead to priority inversion in case the single Tx queue is already full with low priority messages and a high priority message needs to be sent while the bus is fully loaded with medium priority messages. This problem can be solved by using the existing multi-queue support of the network subsytem. The commit makes it possible to use multi-queue in the CAN subsystem in the same way it is used in the Ethernet subsystem by adding an alloc_candev_mqs() call and accompanying macros. With this support a CAN device can use multi-queue qdisc (e.g. mqprio) to avoid the aforementioned priority inversion. The exisiting functionality of alloc_candev() is the same as before. CAN devices need to have prioritized multiple hardware queues or are able to abort waiting for arbitration to make sensible use of multi-queues. Signed-off-by: Zhu Yi <yi.zhu5@cn.bosch.com> Signed-off-by: Mark Jonas <mark.jonas@de.bosch.com> Reviewed-by: Heiko Schocher <hs@denx.de> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-07-27can: dev: use skb_put_zero to simplfy codeYueHaibing1-4/+2
use helper skb_put_zero to replace the pattern of skb_put() && memset() Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-07-27can: ucan: add driver for Theobroma Systems UCAN devicesJakob Unterwurzacher5-0/+1963
The UCAN driver supports the microcontroller-based USB/CAN adapters from Theobroma Systems. There are two form-factors that run essentially the same firmware: * Seal: standalone USB stick ( https://www.theobroma-systems.com/seal ) * Mule: integrated on the PCB of various System-on-Modules from Theobroma Systems like the A31-µQ7 and the RK3399-Q7 ( https://www.theobroma-systems.com/rk3399-q7 ) The USB wire protocol has been designed to be as generic and hardware-indendent as possible in the hope of being useful for implementation on other microcontrollers. Signed-off-by: Martin Elshuber <martin.elshuber@theobroma-systems.com> Signed-off-by: Jakob Unterwurzacher <jakob.unterwurzacher@theobroma-systems.com> Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com> Acked-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-07-27can: usb: Kconfig/Makefile: sort alphabeticallyMarc Kleine-Budde2-8/+14
This patch sorts the entries in the Kconfig and Makefile alphabetically, so that further contributors can generate patches more easily. Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-07-27can: cc770: fix spelling mistake: "comptibility" -> "compatibility"Colin Ian King1-1/+1
Trivial fix to spelling mistake in module parameter description text Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-07-27can: uapi: can.h: Fix can error class mask dir pathDan Murphy1-1/+1
The CAN error masks header file is in the include/uapi directory. Fix the path in the header to the correct location. Signed-off-by: Dan Murphy <dmurphy@ti.com> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2018-07-26Merge tag 'mlx5e-updates-2018-07-26' of ↵David S. Miller10-313/+612
git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux Saeed Mahameed says: ==================== mlx5e-updates-2018-07-26 (XDP redirect) This series from Tariq adds the support for device-out XDP redirect. Start with a simple RX and XDP cleanups: - Replace call to MPWQE free with dealloc in interface down flow - Do not recycle RX pages in interface down flow - Gather all XDP pre-requisite checks in a single function - Restrict the combination of large MTU and XDP Since now XDP logic is going to be called from TX side as well, generic XDP TX logic is not RX only anymore, for that Tariq creates a new xdp.c file and moves XDP related code into it, and generalizes the code to support XDP TX for XDP redirect, such as the xdp tx sq structures and xdp counters. XDP redirect support: Add implementation for the ndo_xdp_xmit callback. Dedicate a new set of XDP-SQ instances to satisfy the XDP_REDIRECT requests. These instances are totally separated from the existing XDP-SQ objects that satisfy local XDP_TX actions. Performance tests: xdp_redirect_map from ConnectX-5 to ConnectX-5. CPU: Intel(R) Xeon(R) CPU E5-2680 v3 @ 2.50GHz Packet-rate of 64B packets. Single queue: 7 Mpps. Multi queue: 55 Mpps. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-26netdevsim: make debug dirs' dentries staticJakub Kicinski2-6/+3
The root directories of netdevsim should only be used by the core to create per-device subdirectories, so limit their visibility to the core file. Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-26Merge branch 'docs-net-Convert-netdev-FAQ-to-RST'David S. Miller7-259/+271
Tobin C. Harding says: ==================== docs: net: Convert netdev-FAQ to RST Jon answered all the tree questions on v1 so if you will please take this through your tree that would be awesome. v2: - Fix typo 'canonical_path_format' (thanks Edward) - Add patch fixing references netdev-FAQ ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-26docs: Update references to netdev-FAQTobin C. Harding2-13/+10
File 'Documentation/networking/netdev-FAQ.txt' has been converted to RST format. We should update all links/references to point to the new file. Update references to netdev-FAQ Signed-off-by: Tobin C. Harding <me@tobin.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-26docs: net: Convert netdev-FAQ to restructured textTobin C. Harding4-246/+260
Preferred kernel docs format is now restructured text. Convert netdev-FAQ.txt to restructured text. - Add SPDX license identifier. - Change file heading 'Information you need to know about netdev' to 'netdev FAQ' to better suit displayed index (in HTML). - Change question/answer layout to suit rst. Copy format in Documentation/bpf/bpf_devel_QA.rst - Fix indentation of code snippets - If multiple consecutive URLs appear put them in a list (to maintain whitespace). - Use uniform spelling of 'bug fix' throughout document (not bugfix or bug-fix). - Add double back ticks to 'net' and 'net-next' when referring to the trees. - Use rst references for Documentation/ links. - Add rst label 'netdev-FAQ' for referencing by other docs files. - Remove stale entry from Documentation/networking/00-INDEX Signed-off-by: Tobin C. Harding <me@tobin.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-26docs: Add rest label the_canonical_patch_formatTobin C. Harding1-0/+1
In preparation to convert Documentation/network/netdev-FAQ.rst to restructured text format. We would like to be able to reference 'the canonical patch format' section. Add rest label: 'the_canonical_patch_format'. Signed-off-by: Tobin C. Harding <me@tobin.cc> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-26net: adaptec: Replace mdelay() with msleep() in starfire_init_one()Jia-Ju Bai1-1/+1
starfire_init_one() is never called in atomic context. It calls mdelay() to busily wait, which is not necessary. mdelay() can be replaced with msleep(). This is found by a static analysis tool named DCNS written by myself. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-26isdn: hisax: config: Replace GFP_ATOMIC with GFP_KERNELJia-Ju Bai1-4/+4
hisax_cs_new() and hisax_cs_setup() are never called in atomic context. They call kmalloc() and kzalloc() with GFP_ATOMIC, which is not necessary. GFP_ATOMIC can be replaced with GFP_KERNEL. This is found by a static analysis tool named DCNS written by myself. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-26isdn: hisax: callc: Replace GFP_ATOMIC with GFP_KERNEL in init_PStack()Jia-Ju Bai1-1/+1
init_PStack() is never called in atomic context. It calls kmalloc() with GFP_ATOMIC, which is not necessary. GFP_ATOMIC can be replaced with GFP_KERNEL. This is found by a static analysis tool named DCNS written by myself. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-26isdn: mISDN: netjet: Replace GFP_ATOMIC with GFP_KERNEL in nj_probe()Jia-Ju Bai1-1/+1
nj_probe() is never called in atomic context. It calls kzalloc() with GFP_ATOMIC, which is not necessary. GFP_ATOMIC can be replaced with GFP_KERNEL. This is found by a static analysis tool named DCNS written by myself. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-26isdn: mISDN: hfcpci: Replace GFP_ATOMIC with GFP_KERNEL in hfc_probe()Jia-Ju Bai1-1/+1
hfc_probe() is never called in atomic context. It calls kzalloc() with GFP_ATOMIC, which is not necessary. GFP_ATOMIC can be replaced with GFP_KERNEL. This is found by a static analysis tool named DCNS written by myself. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-26net: hns: make hns_dsaf_roce_reset non staticYueHaibing1-1/+1
hns_dsaf_roce_reset is exported and used in hns_roce_hw_v1.c In commit 336a443bd9dd ("net: hns: Make many functions static") I make it static wrongly. drivers/infiniband/hw/hns/hns_roce_hw_v1.o: In function `hns_roce_v1_reset': hns_roce_hw_v1.c:(.text+0x37ac): undefined reference to `hns_dsaf_roce_reset' hns_roce_hw_v1.c:(.text+0x37cc): undefined reference to `hns_dsaf_roce_reset' Fixes: 336a443bd9dd ("net: hns: Make many functions static") Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-26net/mlx5e: TX, Use function to access sq_dma object in fifoTariq Toukan1-10/+9
Use designated function mlx5e_dma_get() to get the mlx5e_sq_dma object to be pushed into fifo. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-07-26net/mlx5e: TX, Move DB fields in TXQ-SQ structTariq Toukan1-6/+4
Pointers in DB are static, move them to read-only area so they do not share a cacheline with fields modified in datapath. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-07-26net/mlx5e: RX, Prefetch the xdp_frame data areaTariq Toukan1-0/+1
A loaded XDP program might write to the xdp_frame data area, prefetchw() it to avoid a potential cache miss. Performance tests: ConnectX-5, XDP_TX packet rate, single ring. CPU: Intel(R) Xeon(R) CPU E5-2680 v3 @ 2.50GHz Before: 13,172,976 pps After: 13,456,248 pps 2% gain. Fixes: 22f453988194 ("net/mlx5e: Support XDP over Striding RQ") Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-07-26net/mlx5e: Add support for XDP_REDIRECT in device-out sideTariq Toukan7-21/+154
Add implementation for the ndo_xdp_xmit callback. Dedicate a new set of XDP-SQ instances to satisfy the XDP_REDIRECT requests. These instances are totally separated from the existing XDP-SQ objects that satisfy local XDP_TX actions. Performance tests: xdp_redirect_map from ConnectX-5 to ConnectX-5. CPU: Intel(R) Xeon(R) CPU E5-2680 v3 @ 2.50GHz Packet-rate of 64B packets. Single queue: 7 Mpps. Multi queue: 55 Mpps. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-07-26net/mlx5e: Re-order fields of struct mlx5e_xdpsqTariq Toukan4-18/+19
In the downstream patch that adds support to XDP_REDIRECT-out, the XDP xmit frame function doesn't share the same run context as the NAPI that polls the XDP-SQ completion queue. Hence, need to re-order the XDP-SQ fields to avoid cacheline false-sharing. Take redirect_flush and doorbell out of DB, into separated cachelines. Add a cacheline breaker within the stats struct. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-07-26net/mlx5e: Refactor XDP countersTariq Toukan5-26/+52
Separate the XDP counters into two sets: (1) One set reside in the RQ stats, and they monitor XDP stats in the RQ side. (2) Another set is per XDP-SQ, and they monitor XDP stats that are related to XDP transmit flow. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-07-26net/mlx5e: Make XDP xmit functions more genericTariq Toukan4-42/+61
Convert the XDP xmit functions to use the generic xdp_frame API in XDP_TX flow. Same functions will be used later in this series to transmit the XDP redirect-out packets as well. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-07-26net/mlx5e: Add counter for XDP redirect in RXTariq Toukan3-0/+6
Add per-ring and total stats for received packets that goes into XDP redirection. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-07-26net/mlx5e: Move XDP related code into new XDP filesTariq Toukan7-215/+293
Take XDP code out of the general EN header and RX file into new XDP files. Currently, XDP-SQ resides only within an RQ and used from a single flow (XDP_TX) triggered upon RX completions. In a downstream patch, additional type of XDP-SQ instances will be presented and used for the XDP_REDIRECT flow, totally unrelated to the RX context. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-07-26net/mlx5e: Restrict the combination of large MTU and XDPTariq Toukan2-8/+33
Add checks in control path upon an MTU change or an XDP program set, to prevent reaching cases where large MTU and XDP are set simultaneously. This is to make sure we allow XDP only with the linear RX memory scheme, i.e. a received packet is not scattered to different pages. Change mlx5e_rx_get_linear_frag_sz() accordingly, so that we make sure the XDP configuration can really be set, instead of assuming that it is. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-07-26net/mlx5e: Gather all XDP pre-requisite checks in a single functionTariq Toukan1-11/+22
Dedicate a function to all checks done when setting an XDP program. Take indications from priv instead of netdev features. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-07-26net/mlx5e: Do not recycle RX pages in interface down flowTariq Toukan1-17/+20
Keep all page-pool recycle calls within NAPI context. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-07-26net/mlx5e: Replace call to MPWQE free with dealloc in interface down flowTariq Toukan3-3/+2
No need to expose the MPWQE free function to control path. The dealloc function already exposed, use it. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
2018-07-26Merge branch '10GbE' of ↵David S. Miller5-111/+250
git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue Jeff Kirsher says: ==================== 10GbE Intel Wired LAN Driver Updates 2018-07-26 This series contains updates to ixgbe and igb. Tony fixes ixgbe to add checks to ensure jumbo frames or LRO get enabled after an XDP program is loaded. Shannon Nelson adds the missing security configuration registers to the ixgbe register dump, which will help in debugging. Christian Grönke fixes an issue in igb that occurs on SGMII based SPF mdoules, by reverting changes from 2 previous patches. The issue was that initialization would fail on the fore mentioned modules because the driver would try to reset the PHY before obtaining the PHY address of the SGMII attached PHY. Venkatesh Srinivas replaces wmb() with dma_wmb() for doorbell writes, which avoids SFENCEs before the doorbell writes. Alex cleans up and refactors ixgbe Tx/Rx shutdown to reduce time needed to stop the device. The code refactor allows us to take the completion time into account when disabling queues, so that on some platforms with higher completion times, would not result in receive queues disabled messages. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-07-26net: sched: unmark chain as explicitly created on deleteJiri Pirko1-0/+1
Once user manually deletes the chain using "chain del", the chain cannot be marked as explicitly created anymore. Signed-off-by: Jiri Pirko <jiri@mellanox.com> Fixes: 32a4f5ecd738 ("net: sched: introduce chain object to uapi") Signed-off-by: David S. Miller <davem@davemloft.net>
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