From: Douglas Gilbert <dougg@xxxxxxxxxx> Subject: SCSI Generic version 4 interface, release 1.2 Date: Wed, 14 Mar 2007 12:18:16 -0400 > - the write() usage in the sg driver's asynchronous interface has > caused problems when mistakenly applied to a block device node > rather than a sg device node. Using an ioctl(flag_async) followed > by a read() for asynchronous work offers similar functionality and > is safer. Using ioctl(flag_async_start) and > ioctl(flag_async_finish) is another possibility. I'm not sure about this because users read/write via /dev/bsgX not /dev/sdX. Anyway, I'm not sure the read/write interface is good for bsg. > - the SCSI command tag field as currently defined in SAM-4 can be > up to 64 bits (with a proposal to increase that to 96 bits for FCP) > Should we let the transport layer/LLD worry about that? SRP uses 64-bits tags. - 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
