Tycho Nightingale
48a9d8f214
To allow a request to be submitted from within the callback routine of
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a completing one increase the total by 1 but don't advertise it.
Reviewed by: grehan
2014-11-09 21:08:52 +00:00
Tycho Nightingale
ae45750d6c
Improve the ability to cancel an in-flight request by using an
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interrupt, via SIGCONT, to force the read or write system call to
return prematurely.
Reviewed by: grehan
2014-11-04 01:06:33 +00:00
Tycho Nightingale
3ef05c4677
Support stopping and restarting the AHCI command list via toggling
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PxCMD.ST from '1' to '0' and back. This allows the driver a chance to
recover if for instance a timeout occurred due to activity on the
host.
Reviewed by: grehan
2014-10-17 11:37:50 +00:00
Neel Natu
1aba8e7ff8
Initialize 'bc_rdonly' to the right value.
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Note that independent of this change a readonly disk file would still be
opened O_RDONLY and protected from writes by the guest.
Reviewed by: grehan
2014-09-11 21:15:20 +00:00
Peter Grehan
c4813fadf1
Add a call to synthesize a C/H/S value for block emulations
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that require it (ahci). The algorithm used is from the VHD
specification.
2014-07-15 00:25:54 +00:00
Xin LI
994f858a8b
Use calloc() in favor of malloc + memset.
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Reviewed by: neel
2014-04-22 18:55:21 +00:00
Tycho Nightingale
40eb53f232
Increase the block-layer backend maximum number of requests to match
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the AHCI command queue depth. This allows a slew of commands issued
by a Linux guest to be absorbed without error.
Approved by: grehan (co-mentor)
2014-01-22 01:56:49 +00:00
Peter Grehan
7f5487aca1
Add the VM name to the process name with setproctitle().
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Remove the VM name from some of the thread-naming calls
since it is now in the proc title.
Slightly modify the thread-naming for the net and block
threads.
This improves readability when using top/ps with the -a
and -H options on a system with a large number of bhyve VMs.
Requested by: Michael Dexter
Reviewed by: neel
MFC after: 4 weeks
2013-11-06 00:25:17 +00:00
Peter Grehan
7cf5a7eeb0
Block-layer backend interface for bhyve block-io device emulations.
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Approved by: re@ (blanket)
2013-10-04 16:52:03 +00:00
