From mboxrd@z Thu Jan 1 00:00:00 1970 From: Venkatesh Ramamurthy Date: Fri, 19 Jan 2001 02:16:27 +0000 Subject: RE: SCSI Patches - mostly on/off-line stuff Message-Id: List-Id: References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-hotplug@vger.kernel.org So I think rescanning should occur in the kernel automatically after every bus reset for every different kind of peripheral bus. Every peripheral bus, even parallel SCSI, I think has a bus reset: parallel SCSI, FC, 1394 - yes, ATA - ?, others - ? [Venkat] Bus reset is a very costly operation in SCSI. After doing a SCSI BUS RESET all devices go to UNIT ATTENTION . All the devices need to cleared from this condition. So in order to detect new devices are we going to do a SCSI BUS RESET every now and then??? Since SCSI dos not support target initiated event notification, we have no choice left. Some kernel thread or a user daemon can initiate a bus scanning. _______________________________________________ Linux-hotplug-devel mailing list http://linux-hotplug.sourceforge.net Linux-hotplug-devel@lists.sourceforge.net http://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel