X-Git-Url: http://git.samba.org/samba.git/?p=sfrench%2Fcifs-2.6.git;a=blobdiff_plain;f=Documentation%2FPCI%2Fpci-error-recovery.txt;h=0b6bb3ef449ee7a8ee45afe9b4be61a2859ac8e3;hp=da3b2176d5da74a4e279266c7b0326e27bfdf8cf;hb=677375cef8cb7763ef620e007873117b9bad72a0;hpb=0e1bfea999daa27c801b19617a6ef8b8ec4adc75 diff --git a/Documentation/PCI/pci-error-recovery.txt b/Documentation/PCI/pci-error-recovery.txt index da3b2176d5da..0b6bb3ef449e 100644 --- a/Documentation/PCI/pci-error-recovery.txt +++ b/Documentation/PCI/pci-error-recovery.txt @@ -11,7 +11,7 @@ Many PCI bus controllers are able to detect a variety of hardware PCI errors on the bus, such as parity errors on the data and address -busses, as well as SERR and PERR errors. Some of the more advanced +buses, as well as SERR and PERR errors. Some of the more advanced chipsets are able to deal with these errors; these include PCI-E chipsets, and the PCI-host bridges found on IBM Power4, Power5 and Power6-based pSeries boxes. A typical action taken is to disconnect the affected device, @@ -173,7 +173,7 @@ is STEP 6 (Permanent Failure). >>> a value of 0xff on read, and writes will be dropped. If more than >>> EEH_MAX_FAILS I/O's are attempted to a frozen adapter, EEH >>> assumes that the device driver has gone into an infinite loop ->>> and prints an error to syslog. A reboot is then required to +>>> and prints an error to syslog. A reboot is then required to >>> get the device working again. STEP 2: MMIO Enabled @@ -231,14 +231,14 @@ proceeds to STEP 4 (Slot Reset) STEP 3: Link Reset ------------------ The platform resets the link. This is a PCI-Express specific step -and is done whenever a non-fatal error has been detected that can be +and is done whenever a fatal error has been detected that can be "solved" by resetting the link. STEP 4: Slot Reset ------------------ In response to a return value of PCI_ERS_RESULT_NEED_RESET, the -the platform will perform a slot reset on the requesting PCI device(s). +the platform will perform a slot reset on the requesting PCI device(s). The actual steps taken by a platform to perform a slot reset will be platform-dependent. Upon completion of slot reset, the platform will call the device slot_reset() callback. @@ -258,7 +258,7 @@ configuration registers to initialize to their default conditions. For most PCI devices, a soft reset will be sufficient for recovery. Optional fundamental reset is provided to support a limited number -of PCI Express PCI devices for which a soft reset is not sufficient +of PCI Express devices for which a soft reset is not sufficient for recovery. If the platform supports PCI hotplug, then the reset might be @@ -303,7 +303,7 @@ driver performs device init only from PCI function 0: Same as above. Drivers for PCI Express cards that require a fundamental reset must -set the needs_freset bit in the pci_dev structure in their probe function. +set the needs_freset bit in the pci_dev structure in their probe function. For example, the QLogic qla2xxx driver sets the needs_freset bit for certain PCI card types: