Searched hist:199058 (Results 1 - 3 of 3) sorted by relevance
| /freebsd-9.3-release/sys/dev/usb/controller/ | ||
| H A D | ehci_pci.c | diff 199058 Sun Nov 08 19:01:00 MST 2009 thompsa Integrate lost interrupts patch from the old USB stack. Some EHCI chips from VIA / ATI seem to trigger interrupts before writing back the qTD status, or miss signalling occasionally under heavy load. If the host machine is too fast, we can miss transaction completion - when we scan the active list the transaction still seems to be active. This generally exhibits itself as a umass stall that never recovers. We work around this behaviour by setting up this callback after any softintr that completes with transactions still pending, giving us another chance to check for completion after the writeback has taken place Submitted by: Alexander Nedotsuko MFC after: 3 days |
| H A D | ehci.h | diff 199058 Sun Nov 08 19:01:00 MST 2009 thompsa Integrate lost interrupts patch from the old USB stack. Some EHCI chips from VIA / ATI seem to trigger interrupts before writing back the qTD status, or miss signalling occasionally under heavy load. If the host machine is too fast, we can miss transaction completion - when we scan the active list the transaction still seems to be active. This generally exhibits itself as a umass stall that never recovers. We work around this behaviour by setting up this callback after any softintr that completes with transactions still pending, giving us another chance to check for completion after the writeback has taken place Submitted by: Alexander Nedotsuko MFC after: 3 days |
| H A D | ehci.c | diff 199058 Sun Nov 08 19:01:00 MST 2009 thompsa Integrate lost interrupts patch from the old USB stack. Some EHCI chips from VIA / ATI seem to trigger interrupts before writing back the qTD status, or miss signalling occasionally under heavy load. If the host machine is too fast, we can miss transaction completion - when we scan the active list the transaction still seems to be active. This generally exhibits itself as a umass stall that never recovers. We work around this behaviour by setting up this callback after any softintr that completes with transactions still pending, giving us another chance to check for completion after the writeback has taken place Submitted by: Alexander Nedotsuko MFC after: 3 days |
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