- 03 7月, 2011 11 次提交
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由 Dan Williams 提交于
Replace the device completion infrastructure with the controller wide event queue. There was a potential for the stop and ready notifications to corrupt each other, now that cannot happen. The stop pending flag cannot be used until devices are statically allocated. We temporarily need to maintain a completion to handle waiting for an object that has disappeared, but we can at least stop scribbling on freed memory. A future change will also get rid of the "stopping" state as it should not be exposed to the rest of the driver. Signed-off-by: NDan Williams <dan.j.williams@intel.com>
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由 Dan Williams 提交于
isci_host_by_id() should have been a clue that an array would have been a simpler approach. Reported-by: NJames Bottomley <James.Bottomley@suse.de> Signed-off-by: NDan Williams <dan.j.williams@intel.com>
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由 Tomasz Chudy 提交于
There is a condition whereby TCs (task contexts) can jump to the head of the round robin queue causing indefinite starvation of pending tasks. Posting a TC to a suspended RNC (remote node context) causes the hardware to select that task first, but since the RNC is suspended the scheduler proceeds to the next task in the expected round robin fashion, restoring TC arbitration fairness. Signed-off-by: NTomasz Chudy <tomasz.chudy@intel.com> Signed-off-by: NDan Williams <dan.j.williams@intel.com>
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由 Dan Williams 提交于
Prepare the timer api for the arrival of dynamic creation and destruction events from the core. It pretended to do this previously but the core to date only used it in a static init-time only fashion. This is an interim fix until a cleaner event queue can be developed. 1/ make all locking external to the api (add WARN_ONCE to verify) 2/ add a timer_destroy interface (to be used by the core) 3/ use del_timer_sync() prior to deallocating timer data 4/ delete the "timer_list" indirection, we only have timers allocated for the isci_host 5/ fix detection of timer list allocation errors Signed-off-by: NDan Williams <dan.j.williams@intel.com>
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由 Dan Williams 提交于
Undo the open coded and incorrect translation of the oem parameter sas address to its libsas expected format. Signed-off-by: NDan Williams <dan.j.williams@intel.com>
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由 Dave Jiang 提交于
Moved the firmware loading from per adapter to per PCI device. This should prevent firmware from being loaded twice becuase of 2 SCU controller per PCI device. We do have to do it per PCI device because request_firmware() requires a struct device passed in. Signed-off-by: NDave Jiang <dave.jiang@intel.com> Signed-off-by: NDan Williams <dan.j.williams@intel.com>
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由 Dan Williams 提交于
Add basic support for handling/reporting error interrupts. Signed-off-by: NDan Williams <dan.j.williams@intel.com>
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由 Edmund Nadolski 提交于
Polling the event queue during scan is an unneeded holdover from the original driver. Signed-off-by: NEdmund Nadolski <edmund.nadolski@intel.com> [djbw: ensure we flush all port events and domain discovery] Signed-off-by: NDan Williams <dan.j.williams@intel.com>
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由 Dan Williams 提交于
The lldd actively disallows requests in the "starting" state. Retrying or holding off commands in this state is sub-optimal: 1/ it adds another state check to the fast path 2/ retrying can cause libsas to give up However, isci's ->lldd_dev_found() routine already waits for controller start to complete before allowing further progress. Checking the "starting" state in isci_task_execute_task and the isr is redundant and misleading. Clean this up and introduce a controller-wide event queue to start reeling in "completion" proliferation in the driver. The "stopping" state cleanups are in a similar vein, rely on the the isr and other paths being precluded from occurring rather than implementing state checking logic. Reported-by: NChristoph Hellwig <hch@infradead.org> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: NEdmund Nadolski <edmund.nadolski@intel.com> Signed-off-by: NDan Williams <dan.j.williams@intel.com>
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由 Dan Williams 提交于
The indirection is unecessary and broken in the current case that assigns the handlers based on a not up-to-date pdev->msix_enabled value. Route the handlers directly to the requisite core routines. Todo: hook up error interrupt handling Reported-by: NJeff Garzik <jeff@garzik.org> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: NEdmund Nadolski <edmund.nadolski@intel.com> Signed-off-by: NDan Williams <dan.j.williams@intel.com>
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由 Dan Williams 提交于
Support for the up to 2x4-port 6Gb/s SAS controllers embedded in the chipset. This is a snapshot of the first publicly available version of the driver, commit 4c1db2d0 in the 'historical' branch. git://git.kernel.org/pub/scm/linux/kernel/git/djbw/isci.git historical Signed-off-by: NMaciej Trela <maciej.trela@intel.com> Signed-off-by: NDave Jiang <dave.jiang@intel.com> Signed-off-by: NEdmund Nadolski <edmund.nadolski@intel.com> Signed-off-by: NDan Williams <dan.j.williams@intel.com>
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