>>>>> "Christoph" == Christoph Hellwig <hch@xxxxxxxxxxxxx> writes: >> This patch adds the ability to support auto-enablement of wire-only >> DIF (DIF is generated on TX to target, stripped on RX; OS unaware DIF >> in use) for a select set of devices. Currently, there is only 1 >> device vendor supported: 3PARdata. When the feature is enabled, >> Inquiry commands are trapped, the vendor matched, and DIF enablement >> checked. In 3Par's case, there's a vendor specific check to see if >> the LUN supports DIF. If supported, DIF will be enabled on a per-lun >> basis. The driver will trap READS/WRITEs from the OS, check for LUN >> DIF enablement, and if set, turns on write-only DIF. Christoph> NAK. We do support proper DIF, and anyone who wants it should Christoph> enable the real thing. Christoph> And even if we would want to support a hack like this we'd do Christoph> it genericly an not in a driver. Agree completely. -- Martin K. Petersen Oracle Linux Engineering -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
