> On Sep 2, 2016, at 3:38 PM, Uma Krishnan <ukri...@linux.vnet.ibm.com> wrote: > > When a port link is established, the AFU sends a 'link up' interrupt. > After the link is up, corresponding initialization steps are performed > on the card. Following that, when the card is ready for I/O, the AFU > sends 'login succeeded' interrupt. Today, cxlflash invokes > scsi_scan_host() upon receipt of both interrupts. > > SCSI commands sent to the port prior to the 'login succeeded' interrupt > will fail with 'port not available' error. This is not desirable. > Moreover, when async_scan is active for the host, subsequent scan calls > are terminated with error. Due to this, the scsi_scan_host() call > performed after 'login succeeded' interrupt could portentially return > error and the devices may not be scanned properly. > > To avoid this problem, scsi_scan_host() should be called only after the > 'login succeeded' interrupt. > > Signed-off-by: Uma Krishna <ukri...@linux.vnet.ibm.com>
Acked-by: Matthew R. Ochs <mro...@linux.vnet.ibm.com> -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
