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2016-05-04Some hardware (such as the onboard dc(4) of the Netra X1) has a broken DMAMark Kettenis
engine that might attempt to read beyond the end of the buffer that was programmed. The IOMMU catches this "DMA overrun" and throws an unrecoverable error at us, at which point we have no choice but to panic. To avoid this implement a BUS_DMA_OVERRUN flag that maps an additional scratch page at the end of the vdma address range. DMA requests will spill over into this page, which just returns zeroes. Thanks to matthieu@ for giving me access to a machine with the problem. ok deraadt@, beck@
2016-05-04Initial support for MSI-X. Only supported on amd64 for now. I have diffs toMark Kettenis
actually use this in em(4) and xhci(4), but I'm not committing those yet because we almost certainly need to save and restore the MSI-X registers during suspend/resume. However, this allows mpi@ to play with multiple-vector support in networking hardware. Requested by mpi@ ok mlarkin@, mikeb@
2016-05-03Revert previous commit. Calling sched_init_cpu() fromMark Kettenis
cpu_boot_secondary_processors() break suspend/resume.
2016-04-29Call sched_init_cpu() just before booting secondary CPUs.Martin Pieuchot
This prevent the scheduler from scheduling tasks to CPUs not beeing able to execute them during the boot process. ok visa@, kettenis@
2016-04-29Do not remove local symbols from the table.Martin Pieuchot
ddb(4) can now see static functions. That doesn't mean we should start declaring functions as ``static'', however it helps for the few existing exceptions. ok deraadt@, kettenis@
2016-04-27G/C DDB_REGS.Martin Pieuchot
2016-04-25remove systraceTed Unangst
2016-04-15enable nvme(4). it Just Works(tm).David Gwynne
2016-04-13G/C IFQ_SET_READY().Martin Pieuchot
2016-04-10For now, disable ahc(4) such that GENERIC.MP kernels don't overflow the 8MMark Kettenis
reserved for .text and .rodata. Hopefully I can get rid of this limit soon. propmpted by guenther@
2016-03-30some oce(4) work, it appearsTheo de Raadt
2016-03-29Some sparc64 pci frame buffers incorrectly have the `depth' propertyMark Kettenis
spelled `depth ' with a trailing space. From miod@
2016-03-21Plug a memory leak in vnet(4) ioctl code path.Stefan Sperling
ok kettenis@
2016-03-19Remove the unused flags argument from VOP_UNLOCK().natano
torture tested on amd64, i386 and macppc ok beck mpi stefan "the change looks right" deraadt
2016-03-19Reduces the noise around the global ``ticks'' variable by renamingMartin Pieuchot
all the local ones to ``nticks''. ok stefan@, deraadt@
2016-03-15'accomodate' -> 'accommodate' in comments.Kenneth R Westerback
Started by diff from Mical Mazurek.
2016-03-14Change a bunch of (<blah> *)0 to NULL.Kenneth R Westerback
ok beck@ deraadt@
2016-03-07Sync no-argument function declaration and definition by adding (void).Christian Weisgerber
ok mpi@
2016-03-01DB_SYM_NULL -> NULL.Martin Pieuchot
2016-02-27Rename kdb_trap() into db_ktrap().Martin Pieuchot
The goal is to include it in the list of functions that must not be instrumented. All ddb(8) functions should be in this list and have their names start with 'db_'. ok visa@, deraadt@
2016-02-26Prevent memory leak when the ldc gets reset.Mark Kettenis
2016-02-26Remove stale RAIDframe entries from chrtoblktbl.natano
While there truncate the tables to the minimum required size; chrtoblk() and blktochr() are designed to handle a table shorter than cdevsw. "Looks good to me" deraadt@
2016-01-20Check for disks deeper than 4 levels down in the Open Firmware device tree.Stefan Sperling
Makes softraid(4) boot possible on more sparc64 machines. Tested on Sun Fire machines by mikeb@ and Alexander Bochmann via misc@ ok mikeb@
2016-01-08Move HID support files out of dev/usb into new dev/hid directoryJoshua Stein
These files aren't USB-specific and were used by the previous Bluetooth implementation, and will be used by the upcoming HID-over-i2C implementation ok deraadt previous version ok kettenis and mpi
2016-01-08Enable uonerng(4) where ualea(4) is already present.Martin Pieuchot
2015-12-29Remove NULL-checks before free().mmcc
ok tb@
2015-12-11Replace mountroothook_establish(9) by config_mountroot(9) a narrower APIMartin Pieuchot
similar to config_defer(9). ok mikeb@, deraadt@
2015-12-05Avoid using ifq_deq_rollback().Mark Kettenis
2015-12-04Add intr_barrier() just in case...Mark Kettenis
2015-11-27Don't panic in pmap_enter() if we deplete the pool of pv entries and theMark Kettenis
PMAP_CANFAIL flag is set. Return ENOMEM instead.
2015-11-25Don't bother keeping track of the resident count for the kernel pmap.Mark Kettenis
2015-11-25replace IFF_OACTIVE manipulation with mpsafe operations.David Gwynne
there are two things shared between the network stack and drivers in the send path: the send queue and the IFF_OACTIVE flag. the send queue is now protected by a mutex. this diff makes the oactive functionality mpsafe too. IFF_OACTIVE is part of if_flags. there are two problems with that. firstly, if_flags is a short and we dont have any MI atomic operations to manipulate a short. secondly, while we could make the IFF_OACTIVE operates mpsafe, all changes to other flags would have to be made safe at the same time, otherwise a read-modify-write cycle on their updates could clobber the oactive change. instead, this moves the oactive mark into struct ifqueue and provides an API for changing it. there's ifq_set_oactive, ifq_clr_oactive, and ifq_is_oactive. these are modelled on ifsq_set_oactive, ifsq_clr_oactive, and ifsq_is_oactive in dragonflybsd. this diff includes changes to all the drivers manipulating IFF_OACTIVE to now use the ifsq_{set,clr_is}_oactive API too. ok kettenis@ mpi@ jmatthew@ deraadt@
2015-11-24You only need <net/if_dl.h> if you're using LLADDR() or a sockaddr_dl.Martin Pieuchot
2015-11-24The only network driver needing <net/if_types.h> is upl(4) for IFT_OTHER.Martin Pieuchot
2015-11-20shuffle struct ifqueue so in flight mbufs are protected by a mutex.David Gwynne
the code is refactored so the IFQ macros call newly implemented ifq functions. the ifq code is split so each discipline (priq and hfsc in our case) is an opaque set of operations that the common ifq code can call. the common code does the locking, accounting (ifq_len manipulation), and freeing of the mbuf if the disciplines enqueue function rejects it. theyre kind of like bufqs in the block layer with their fifo and nscan disciplines. the new api also supports atomic switching of disciplines at runtime. the hfsc setup in pf_ioctl.c has been tweaked to build a complete hfsc_if structure which it attaches to the send queue in a single operation, rather than attaching to the interface up front and building up a list of queues. the send queue is now mutexed, which raises the expectation that packets can be enqueued or purged on one cpu while another cpu is dequeueing them in a driver for transmission. a lot of drivers use IFQ_POLL to peek at an mbuf and attempt to fit it on the ring before committing to it with a later IFQ_DEQUEUE operation. if the mbuf gets freed in between the POLL and DEQUEUE operations, fireworks will ensue. to avoid this, the ifq api introduces ifq_deq_begin, ifq_deq_rollback, and ifq_deq_commit. ifq_deq_begin allows a driver to take the ifq mutex and get a reference to the mbuf they wish to try and tx. if there's space, they can ifq_deq_commit it to remove the mbuf and release the mutex. if there's no space, ifq_deq_rollback simply releases the mutex. this api was developed to make updating the drivers using IFQ_POLL easy, instead of having to do significant semantic changes to avoid POLL that we cannot test on all the hardware. the common code has been tested pretty hard, and all the driver modifications are straightforward except for de(4). if that breaks it can be dealt with later. ok mpi@ jmatthew@
2015-11-16Replace unbounded gets() in libsa with getln() which takes a buffer size,Miod Vallat
and convert all gets() users. ok deraadt@
2015-11-06Move the logic for adjusting userspace registers in the child after forkPhilip Guenther
from cpu_fork() to child_return(), putting all the SYSCALL_G2RFLAG logic in trap.c sparc testing by sebastia@ and miod@
2015-11-01Remove the definition of USRTEXT. It has no relevance outside of the non-PIEMiod Vallat
a.out world. ok deraadt@ kettenis@
2015-10-28Support backspace in softraid boot passphrase prompt.Joel Sing
From uwe@
2015-10-28missing splx in error pathJonathan Gray
same change made in the sparc equivalent a while ago
2015-10-25arp_ifinit() is no longer needed.Martin Pieuchot
2015-10-23Allocate a new major for tap(4) also note that pseudo-device tun is for tapClaudio Jeker
as well. OK dlg@ mpi@
2015-10-21Do not call uvm_swap_finicrypt_all() a second time in dumpsys().Martin Pieuchot
ok tedu@, deraadt@, miod@
2015-10-01Remove more blinding trailing whitespace.Kenneth R Westerback
2015-09-30Use consistant whitespace/comments for #define'ing LABELSECTOR,Kenneth R Westerback
LABELOFFSET and MAXPARTITIONS. Easier on the eye when scanning through all these files. No functional change.
2015-09-28Oops. sparc64/disksubr.c was overlooked when all the other disksubr.c'sKenneth R Westerback
got 'disk_change = 1;' to keep the DUID cache up to date in Feb. 2011. Bad krw@. ok deraadt@
2015-09-27Use readdisksector() instead of manual buf initialization. sparc64Kenneth R Westerback
compiles and boots, so the identical sparc code must too! ok deraadt@
2015-09-27Store the target CPU in "struct intrhand" and use it in intr_barrier().Mark Kettenis
Also use it wherever we configure the hardware to direct interrupts to the right CPU.
2015-09-26lint is dead and C99 may be old enough to drive a car: delete LONGLONGPhilip Guenther
comments ok millert@
2015-09-19trivial "if(x) free(x)" replacement by "free(x)"Sebastien Marie
ok miod@
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