time, and create a simple allocator for them for use by the rx reclaim
handlers. Don't create and destroy DMA maps for receoive buffers
in the interrupt handlers -- just use the maps that are created at
attach time.
number, and structure the loop in txp_start() similarly to other drivers
(e.g. ste_start() in the ste(4) driver). Similar in spirit to OpenBSD's
rev 1.126, but implemented a bit differently.
DMA addresses into a 64-bit value (and thus using 64-bit shifts
when unnecessary), just reference the address from the DMA map
directly.
- Add some missing byte-swaps.
This did not do what I thought it did. opt_diagnostic.h is only for
the unused _DIAGNOSTIC, which seems like an abortive attempt to
incrementally convert DIAGNOSTIC to an opt_*.h option rather than a
command-line option.
For sticky parameters (encoding, precision, channels, sample_rate and pause):
- AUDIO_SETINFO for nonexistent track updates sticky parameters.
- AUDIO_GETINFO for nonexistent track reads sticky parameters.
For blocksize, hiwat, lowat and {play.record}.buffer_size:
- AUDIO_SETINFO for nonexistent track does nothing.
- AUDIO_GETINFO for nonexistent track returns dummy non-zero values.
Nonexistent track is a playback track on O_RDONLY descriptor for example,
or both tracks on /dev/audioctl.
ixl(4) has not the limitation that it must not send packet when
link is down. And most of the other NIC drivers do not refer to it
when sending packets.
reviewed by knakahara@n.o, thanks.
and receives Get link status response in parallel
sc->sc_link_state_atq.iatq_fn is used in ixl_atq_done_locked()
with sc->sc_atq_lock, but it was cleared in ixl_get_link_status()
without the lock.
struct disk_sectoralign {
/* First aligned sector number. */
uint32_t dsa_firstaligned;
/* Number of sectors per aligned unit. */
uint32_t dsa_alignment;
};
- Teach wd(4) to get it from ATA.
- Teach cgd(4) to pass it through from the underlying disk.
- Teach dk(4) to pass it through with adjustments.
- Teach zpool (zfs) to take advantage of it.
=> XXX zpool doesn't seem to understand when the vdev's starting
sector is misaligned.
Missing:
- ccd(4) and raidframe(4) support -- these should support _using_
DIOCGSECTORALIGN to decide where to start putting ccd or raid
stripes on disk, and these should perhaps _implement_
DIOCGSECTORALIGN by reporting the stripe/interleave factor.
- sd(4) support -- I don't know any obvious way to get it from SCSI,
but if any SCSI wizards know better than I, please feel free to
teach sd(4) about it!
- any ld(4) attachments -- might be worth teaching the ld drivers for
nvme and various raid controllers to get the aligned sector size
There's some duplicate logic here for now. I'm doing it this way,
rather than gathering the logic into a new disklabel_sectoralign
function or something, so that this change is limited to adding a new
ioctl, without any new kernel symbols, in order to make it easy to
pull up to netbsd-9 without worrying about the module ABI.
