Warner Losh f51c1d1dd5 pvscsi: Advertise maxio of 256k. ... While the PV SCSI SG list can handle 512k of SG entries, it can only do so for I/O that's aligned to 4k or better. newfs_msdos does unaligned I/O, so triggers too long for host errors in cam when a 512k I/O is attempted. Prefer power of 2 256k to the absolute maximum 508k, though that can be revisited should the latter show to give significant performance improvement. MFC After: 3 days Tested by: darius on discord (508k version of patch) Sponsored by: Netflix (cherry picked from commit 9a5a5c1576)		2022-10-19 13:47:45 -04:00
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pvscsi.c	pvscsi: Advertise maxio of 256k.	2022-10-19 13:47:45 -04:00
pvscsi.h