aboutsummaryrefslogtreecommitdiff
path: root/sys/dev/altera
Commit message (Collapse)AuthorAgeFilesLines
* Remove SOC FPGA driversJohn Baldwin2024-12-0626-8280/+0
| | | | | | | | | The drivers have been disconnected from the build since the removal of the SOCFPGA kernel configs. Reviewed by: manu, imp, andrew Sponsored by: AFRL, DARPA Differential Revision: https://reviews.freebsd.org/D47885
* altera: Stop checking for failures from malloc(M_WAITOK)Zhenlei Huang2024-09-031-5/+0
| | | | | MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D45852
* net: Remove unneeded NULL check for the allocated ifnetZhenlei Huang2024-06-281-5/+0
| | | | | | | | | | | Change 4787572d0580 made if_alloc_domain() never fail, then also do the wrappers if_alloc(), if_alloc_dev(), and if_gethandle(). No functional change intended. Reviewed by: kp, imp, glebius, stevek MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D45740
* atse(4): Fix a typo in a source code commentGordon Bergling2024-01-201-1/+1
| | | | | | - s/addresss/address/ MFC after: 3 days
* sys: Automated cleanup of cdefs and other formattingWarner Losh2023-11-2713-13/+0
| | | | | | | | | | | | | | | | Apply the following automated changes to try to eliminate no-longer-needed sys/cdefs.h includes as well as now-empty blank lines in a row. Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/ Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/ Remove /\n+#if.*\n#endif.*\n+/ Remove /^#if.*\n#endif.*\n/ Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/ Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/ Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/ Sponsored by: Netflix
* dwc: Move every sub drivers to dev/dwcEmmanuel Vadot2023-10-051-112/+0
| | | | | | It makes it easier to find all the sub drivers and change them if needed. While here do not gate dwc_rk with soc options, dwc_rk is made for all rockchip SoCs. Same thing for dwc_socfpga
* sys: Remove $FreeBSD$: one-line sh patternWarner Losh2023-08-161-1/+0
| | | | Remove /^\s*#[#!]?\s*\$FreeBSD\$.*$\n/
* sys: Remove $FreeBSD$: one-line .c patternWarner Losh2023-08-1619-38/+0
| | | | Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
* sys: Remove $FreeBSD$: two-line .h patternWarner Losh2023-08-167-14/+0
| | | | Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/
* spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSDWarner Losh2023-05-1220-20/+20
| | | | | | | | | The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch up to that fact and revert to their recommended match of BSD-2-Clause. Discussed with: pfg MFC After: 3 days Sponsored by: Netflix
* altera: Fix build from 068f2c0e10Justin Hibbits2023-03-071-0/+3
| | | | | | | Missed the altera dwc driver in the conversion. Fixes: 068f2c0e10 Sponsored by: Juniper Networks, Inc.
* Mechanically convert atse(4) to IfAPIJustin Hibbits2023-02-072-51/+50
| | | | | | Reviewed by: zlei Sponsored by: Juniper Networks, Inc. Differential Revision: https://reviews.freebsd.org/D37795
* altera drivers: Remove unused devclass arguments to DRIVER_MODULE.John Baldwin2022-05-0920-42/+13
|
* Remove unused miibus_devclass and miibus_fdt_devclass.John Baldwin2022-05-062-2/+2
|
* altera: clean up empty lines in .c and .h filesMateusz Guzik2020-09-015-9/+0
| | | | Notes: svn path=/head/; revision=365109
* Finish renaming in if_dwc.Michal Meloun2020-06-191-1/+1
| | | | | | | | | | | | By using DWC TRM terminology, normal descriptor format should be named extended and alternate descriptor format should be named normal. Should not been functional change. MFC after: 4 weeks Notes: svn path=/head/; revision=362405
* tty: convert tty_lock_assert to tty_assert_locked to hide lock typeKyle Evans2020-04-171-3/+3
| | | | | | | | | | | | | | | | | A later change, currently being iterated on in D24459, will in-fact change the lock type to an sx so that TTY drivers can sleep on it if they need to. Committing this ahead of time to make the review in question a little more palatable. tty_lock_assert() is unfortunately still needed for now in two places to make sure that the tty lock has not been recursed upon, for those scenarios where it's supplied by the TTY driver and possibly a mutex that is allowed to recurse. Suggested by: markj Notes: svn path=/head/; revision=360051
* Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many)Pawel Biernacki2020-02-262-3/+6
| | | | | | | | | | | | | | | | | | | r357614 added CTLFLAG_NEEDGIANT to make it easier to find nodes that are still not MPSAFE (or already are but aren’t properly marked). Use it in preparation for a general review of all nodes. This is non-functional change that adds annotations to SYSCTL_NODE and SYSCTL_PROC nodes using one of the soon-to-be-required flags. Mark all obvious cases as MPSAFE. All entries that haven't been marked as MPSAFE before are by default marked as NEEDGIANT Approved by: kib (mentor, blanket) Commented by: kib, gallatin, melifaro Differential Revision: https://reviews.freebsd.org/D23718 Notes: svn path=/head/; revision=358333
* Fix syntax error from r357647. Adjust a variable name to make the use moreScott Long2020-02-171-9/+13
| | | | | | | | | clear. Reported by: dim Notes: svn path=/head/; revision=358041
* Enter the network epoch in the xdma interrupt handler if requiredRuslan Bukin2020-02-081-4/+5
| | | | | | | | | by a peripheral device driver. Sponsored by: DARPA, AFRL Notes: svn path=/head/; revision=357686
* Ever since the block layer expanded its command syntax beyond justScott Long2020-02-072-15/+17
| | | | | | | | | | | BIO_READ and BIO_WRITE, we've handled this expanded syntax poorly in drivers when the driver doesn't support a particular command. Do a sweep and fix that. Reported by: imp Notes: svn path=/head/; revision=357647
* Introduce flag IFF_NEEDSEPOCH that marks Ethernet interfaces thatGleb Smirnoff2020-01-231-1/+2
| | | | | | | | | | | supposedly may call into ether_input() without network epoch. They all need to be reviewed before 13.0-RELEASE. Some may need be fixed. The flag is not planned to be used in the kernel for a long time. Notes: svn path=/head/; revision=357010
* Convert to if_foreach_llmaddr() KPI.Gleb Smirnoff2019-10-211-16/+9
| | | | Notes: svn path=/head/; revision=353836
* Add glue driver for Altera SOCFPGA Ethernet MAC (EMAC) found inRuslan Bukin2019-07-291-0/+113
| | | | | | | | | | | | | | | | | | Terasic DE10-Pro (an Intel Stratix 10 GX/SX FPGA Development Kit). The Altera EMAC is an instance of Synopsys DesignWare Gigabit MAC. This driver sets correct clock range for MDIO interface on Intel Stratix 10 platform. This is required due to lack of support for clock manager device for this platform that could tell us the clock frequency value for ethernet clock domain. Sponsored by: DARPA, AFRL Notes: svn path=/head/; revision=350418
* o Add support for BERI IOMMU deviceRuslan Bukin2019-07-221-1/+2
| | | | | | | | | | | | | | | | o Add an experimental IOMMU support to xDMA framework The BERI IOMMU device is the part of CHERI device-model project [1]. It translates memory addresses for various BERI peripherals modelled in software. It accepts FreeBSD/mips64 page directories format and manages BERI TLB. 1. https://github.com/CTSRD-CHERI/device-model Sponsored by: DARPA, AFRL Notes: svn path=/head/; revision=350212
* Negate the logic of XCHAN_CAP_NOBUFS macro and rename it toRuslan Bukin2019-07-041-1/+0
| | | | | | | | | | | | | XCHAN_CAP_BOUNCE. The only application that uses bounce buffering for now is the Government Furnished Equipment (GFE) P2's dma core (AXIDMA) with its own dedicated cacheless bounce buffer. Sponsored by: DARPA, AFRL Notes: svn path=/head/; revision=349727
* Add support for extended descriptor format to Altera mSGDMA driver.Ruslan Bukin2019-06-272-9/+68
| | | | | | | | | | | | The format to use depends on hardware configuration (synthesis-time), so make it compile-time kernel option. Extended format allows DMA engine to operate with 64-bit memory addresses. Sponsored by: DARPA, AFRL Notes: svn path=/head/; revision=349466
* o Rewrite softdma_process_tx() of Altera SoftDMA engine driverRuslan Bukin2019-04-292-65/+94
| | | | | | | | | | | | | | so it does not require a bounce buffer. The only need for this was to align the buffer address. Implement unaligned access and we don't need to copy data twice. o Remove contigmalloc-based bounce buffer from xDMA code since it is not suitable for arbitrary memory provided by platform, which is sometimes a dedicated piece of memory that is not managed by OS at all. Sponsored by: DARPA, AFRL Notes: svn path=/head/; revision=346896
* Fix off-by-one (page) errors in checks in d_mmap methods of several drivers.Konstantin Belousov2018-12-021-0/+1
| | | | | | | | | | | Reported by: C Turt <ecturt@gmail.com> Reviewed by: alc, markj admbug: 781 MFC after: 2 weeks Sponsored by: The FreeBSD Foundation Notes: svn path=/head/; revision=341402
* ifnet: Replace if_addr_lock rwlock with epoch + mutexMatt Macy2018-05-181-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Run on LLNW canaries and tested by pho@ gallatin: Using a 14-core, 28-HTT single socket E5-2697 v3 with a 40GbE MLX5 based ConnectX 4-LX NIC, I see an almost 12% improvement in received packet rate, and a larger improvement in bytes delivered all the way to userspace. When the host receiving 64 streams of netperf -H $DUT -t UDP_STREAM -- -m 1, I see, using nstat -I mce0 1 before the patch: InMpps OMpps InGbs OGbs err TCP Est %CPU syscalls csw irq GBfree 4.98 0.00 4.42 0.00 4235592 33 83.80 4720653 2149771 1235 247.32 4.73 0.00 4.20 0.00 4025260 33 82.99 4724900 2139833 1204 247.32 4.72 0.00 4.20 0.00 4035252 33 82.14 4719162 2132023 1264 247.32 4.71 0.00 4.21 0.00 4073206 33 83.68 4744973 2123317 1347 247.32 4.72 0.00 4.21 0.00 4061118 33 80.82 4713615 2188091 1490 247.32 4.72 0.00 4.21 0.00 4051675 33 85.29 4727399 2109011 1205 247.32 4.73 0.00 4.21 0.00 4039056 33 84.65 4724735 2102603 1053 247.32 After the patch InMpps OMpps InGbs OGbs err TCP Est %CPU syscalls csw irq GBfree 5.43 0.00 4.20 0.00 3313143 33 84.96 5434214 1900162 2656 245.51 5.43 0.00 4.20 0.00 3308527 33 85.24 5439695 1809382 2521 245.51 5.42 0.00 4.19 0.00 3316778 33 87.54 5416028 1805835 2256 245.51 5.42 0.00 4.19 0.00 3317673 33 90.44 5426044 1763056 2332 245.51 5.42 0.00 4.19 0.00 3314839 33 88.11 5435732 1792218 2499 245.52 5.44 0.00 4.19 0.00 3293228 33 91.84 5426301 1668597 2121 245.52 Similarly, netperf reports 230Mb/s before the patch, and 270Mb/s after the patch Reviewed by: gallatin Sponsored by: Limelight Networks Differential Revision: https://reviews.freebsd.org/D15366 Notes: svn path=/head/; revision=333813
* Convert atse(4) driver for Altera Triple-Speed Ethernet MegaCore to useRuslan Bukin2018-04-134-1048/+359
| | | | | | | | | | | | | | | xdma(4) interface. This allows us to switch between Altera mSGDMA or SoftDMA engines used by atse(4) device. This also makes atse(4) driver become 25% smaller. Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D9618 Notes: svn path=/head/; revision=332474
* Add driver for Altera SoftDMA® device.Ruslan Bukin2018-04-133-1/+865
| | | | | | | | | | | SoftDMA is a software implementation of DMA engine built using Altera FIFO component. Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D9620 Notes: svn path=/head/; revision=332472
* Add driver for Altera modular Scatter-Gather DMA engine (mSGDMA).Ruslan Bukin2018-04-132-0/+737
| | | | | | | | Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D9619 Notes: svn path=/head/; revision=332470
* Clean up OF_getprop_alloc APIOleksandr Tymoshenko2018-04-081-4/+4
| | | | | | | | | | | | | | | | | | | | OF_getprop_alloc takes element size argument and returns number of elements in the property. There are valid use cases for such behavior but mostly API consumers pass 1 as element size to get string properties. What API users would expect from OF_getprop_alloc is to be a combination of malloc + OF_getprop with the same semantic of return value. This patch modifies API signature to match these expectations. For the valid use cases with element size != 1 and to reduce modification scope new OF_getprop_alloc_multi function has been introduced that behaves the same way OF_getprop_alloc behaved prior to this patch. Reviewed by: ian, manu Differential Revision: https://reviews.freebsd.org/D14850 Notes: svn path=/head/; revision=332310
* sys/dev: further adoption of SPDX licensing ID tags.Pedro F. Giffuni2017-11-2720-0/+40
| | | | | | | | | | | | | | | Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. Notes: svn path=/head/; revision=326255
* Merge enhancements to the ALTERA Avalon bus generic device attachmentRobert Watson2017-01-284-37/+240
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | driver to support exposing a GEOM device, which can be used to mount Avalon-attached ROMs, reserved areas of DRAM, etc, as a filesystem: commit 9deb1e60eaaaf7a3687e48c58af5efd756f32ec6 Author: Robert N. M. Watson <robert.watson@cl.cam.ac.uk> Date: Sat Mar 5 20:33:12 2016 +0000 Use format strings with make_dev(9) in avgen(4). commit 0bf2176c23e7425bfa042c08a24f8a25fe6d8885 Author: Robert N. M. Watson <robert.watson@cl.cam.ac.uk> Date: Tue Mar 1 10:23:23 2016 +0000 Implement a new "geomio" configuration argument to altera_avgen(4), the generic I/O device we attach to various BERI peripherals. The new option requests that, instead of exposing the underlying device via a special device node in /dev, it instead be exposed via geom(4), allowing it to be used with filesystems. The current implementation does not allow a device to be exposed both for file/mmap and geom, so one of the two models must be selected when configuring it via FDT or device.hints. A typical use of the new option will be: sri-cambridge,geomio = "rw"; MFC after: 1 week Sponsored by: DARPA, AFRL Notes: svn path=/head/; revision=312922
* Merge robustness improvements for the ALTERA JTAG UART driver fromRobert Watson2017-01-282-46/+127
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | CheriBSD, which attempt to work around an inherent race in the UART's control-register design in detecting whether JTAG is currently, present, which will otherwise lead to moderately frequent output drops when running in polled rather than interrupt-driven operation. Now, these drops are quite infrequent. commit 9f33fddac9215e32781a4f016ba17eab804fb6d4 Author: Robert N. M. Watson <robert.watson@cl.cam.ac.uk> Date: Thu Jul 16 17:34:12 2015 +0000 Add a new sysctl, hw.altera_jtag_uart.ac_poll_delay, which allows the (default 10ms) delay associated with a full JTAG UART buffer combined with a lack of a JTAG-present flag to be tuned. Setting this higher may cause some JTAG configurations to be more reliable when printing out low-level console output at a speed greater than the JTAG UART is willing to carry data. Or it may not. commit 73992ef7607738b2973736e409ccd644b30eadba Author: Robert N. M. Watson <robert.watson@cl.cam.ac.uk> Date: Sun Jan 1 15:13:07 2017 +0000 Minor improvements to the Altera JTAG UART device driver: - Minor rework to the logic to detect JTAG presence in order to be a bit more resilient to inevitable races: increase the retry period from two seconds to four seconds for trying to find JTAG, and more agressively clear the miss counter if JTAG has been reconnected. Once JTAG has vanished, stop prodding the miss counter. - Do a bit of reworking of the output code to frob the control register less by checking whether write interrupts are enabled/disabled before changing their state. This should reduce the opportunity for races with JTAG discovery (which are inherent to the Altera hardware-software interface, but can at least be minimised). - Add statistics relating to interrupt enable/disable/JTAG discovery/etc. With these changes, polled-mode JTAG UART ttys appear substantially more robust. MFC after: 1 week Sponsored by: DARPA, AFRL Notes: svn path=/head/; revision=312920
* o Fix style.Ruslan Bukin2016-12-281-47/+54
| | | | | | | | | o Remove set but not used variable. Sponsored by: DARPA, AFRL Notes: svn path=/head/; revision=310701
* Use OF_prop_free instead of direct call to free(9)Oleksandr Tymoshenko2016-05-141-3/+3
| | | | Notes: svn path=/head/; revision=299747
* sys/dev: minor spelling fixes.Pedro F. Giffuni2016-05-031-3/+3
| | | | | | | Most affect comments, very few have user-visible effects. Notes: svn path=/head/; revision=298955
* sys/dev: use our nitems() macro when it is avaliable through param.h.Pedro F. Giffuni2016-04-191-2/+1
| | | | | | | | | | No functional change, only trivial cases are done in this sweep, Drivers that can get further enhancements will be done independently. Discussed in: freebsd-current Notes: svn path=/head/; revision=298307
* As <machine/vm.h> is included from <vm/vm.h>, there is no need toSvatopluk Kraus2016-02-223-3/+0
| | | | | | | | | | include it explicitly when <vm/vm.h> is already included. Reviewed by: alc, kib Differential Revision: https://reviews.freebsd.org/D5380 Notes: svn path=/head/; revision=295883
* CALLOUT_MPSAFE has lost its meaning since r141428, i.e., for more than tenJung-uk Kim2015-05-221-2/+2
| | | | | | | | | | | | | years for head. However, it is continuously misused as the mpsafe argument for callout_init(9). Deprecate the flag and clean up callout_init() calls to make them more consistent. Differential Revision: https://reviews.freebsd.org/D2613 Reviewed by: jhb MFC after: 2 weeks Notes: svn path=/head/; revision=283291
* Do not configure Altera PIO device on ARM startup.Ruslan Bukin2015-01-041-2/+0
| | | | | | | | PIO is a device implemented in soft-core and becomes available after flashing FPGA only. Notes: svn path=/head/; revision=276670
* Merge from CheriBSD:Brooks Davis2014-11-212-2/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit d0c7d235c09fc65dbdb278e7016a96f79c6a49cc Make the Altera JTAG UART device driver slightly more forgiving of the foibles of a sub-par hrdware interface by increasing the timeout for spotting JTAG polling from one to two seconds. commit 19ed45a18832560dab967c179d83b71081c3a220 Update comment. commit 8edfe803f033cc8e33229f99894c2b7496a44d5f Add a comment about a device-driver race condition that could cause the BERI pipeline to wedge awaiting JTAG in the event that both the low-level console and the tty layer decide to write to the JTAG FIFO just before JTAG is disconnected. Resolving this race is a bit tricky as it looks like there isn't a way to 'give the character back' to the tty layer when we discover the race. The easy fix is to drop the character, which we don't yet do, but perhaps should as that is a better outcome than wedging the pipeline. commit 2ea26cf579c9defcf31e413e7c9b0fbc159237fc Add a comment about an inherent race with hardware in the Altera JTAG UART's low-level console code. Submitted by: rwatson MFC after: 1 week Sponsored by: DARPA, AFRL Notes: svn path=/head/; revision=274821
* Merge from CheriBSD (2e28d2a3090239b30481f35dc452ad95a5c57389)Brooks Davis2014-11-211-13/+0
| | | | | | | | | | Remove initalized, but unused devname variable MFC after: 1 week Sponsored by: DARPA, AFRL Notes: svn path=/head/; revision=274820
* Add Altera Parallel IO (PIO) device driver.Ruslan Bukin2014-11-183-0/+323
| | | | | | | Sponsored by: DARPA, AFRL Notes: svn path=/head/; revision=274656
* Mechanically convert to if_inc_counter().Gleb Smirnoff2014-09-191-9/+9
| | | | Notes: svn path=/head/; revision=271849
* Merge atse(4) interrupt handling and race condition fixes from cheribsd:Bjoern A. Zeeb2014-09-162-71/+183
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 8bd88585ed8e3f7def0d780a1bc30d96fe642b9c Rework atse_rx_cycles handling: count packets instead of fills, and use the limit only when polling, not when in interrupt mode. Otherwise, we may stop reading the FIFO midpacket and clear the event mask even though the FIFO still has data to read, which could stall receive when a large packet arrives. Add a comment about races in the Altera FIFO interface: we may need to do a little more work to handle races than we are. commit 20b39086cc612f8874dc9e6ef4c0c2eb777ba92a Use 'sizeof(data)' rather than '4' when checking an mbuf bound, as is the case for adjusting length/etc. commit e18953174a265f40e9ba60d76af7d288927f5382 Break out atse_intr() into two separate routines, one for each of the two interrupt sources: receive and transmit. commit 6deedb43246ab3f9f597918361831fbab7fac4ce For the RX interrupt, take interest only in ALMOSTEMPTY and OVERFLOW. For the TX interrupt, take interest only in ALMOSTFULL and UNDERFLOW. Perform TX atse_start_locked() once rather than twice in TX interrupt handling -- and only if !FULL, rather than unconditionally. commit 12601972ba08d4380201a74f5b967bdaeb23092c Experimentation suggests that the Altera Triple-Speed Ethernet documentation is incorrect and bits in the event and interrupt-enable registers are not irrationally rearranged relative to the status register. commit 3cff2ffad769289fce3a728152e7be09405385d8 Substantially rework interrupt handling in the atse(4) driver: - Introduce a new macro ATSE_TX_PENDING() which checks whether there is any pending data to transmit, either in an in-progress packet or in the TX queue. - Introduce new ATSE_RX_STATUS_READ() and ATSE_TX_STAUTS_WRITE() macros that query the FIFO status registers rather than event registers, offering level- rather than edge-triggered FIFO conditions. - For RX, interrupt only on full/overflow/underflow; for TX, interrupt only on empty/overflow/underflow. - Add new ATSE_RX_INTR_READ() and ATSE_RX_INTR_WRITE() macros useful for debugging interrupt behaviour. - Add a debug.atse_intr_debug_enable sysctl that causes various pieces of FIFO state to be printed out on each RX or TX interrupt. This is disabled by default but good to turn on if the interface appears to wedge. Also print debugging information when polling. - In the watchdog handler, do receive, not just transmit, processing, to ensure that the rx, not just tx, queue is being handled -- and, in particular, will be drained such that interrupts can resume. - Rework both atse_rx_intr() and atse_tx_intr() to eliminate many race conditions, and add comments on why various things are in various orders. Interactions between modifications to the event and interrupt masks are quite subtle indeed, and we must actively check for a number of races (e.g., event mask cleared; packet arrives; interrupts enabled). We also now use the status registers rather than event registers for FIFO status checks to avoid other races; we continue to use event registers for underflow/overflow. With this change, interrupt-driven operation of atse appears (for the time being) robust. commit 3393bbff5c68a4e61699f9b4a62af5d2a5f918f8 atse: Fix build after 3cff2ffa Obtained from: cheribsd Submitted by: rwatson, emaste Sponsored by: DARPA/AFRL MFC after: 3 days Notes: svn path=/head/; revision=271679
* Use define from if_var.h to access a field inside struct if_data,Gleb Smirnoff2014-08-301-1/+1
| | | | | | | | | that resides in struct ifnet. Sponsored by: Nginx, Inc. Notes: svn path=/head/; revision=270856