smh 0026debd97 Limit stripesize reported from nvd(4) to 4K ... Intel NVMe controllers have a slow path for I/Os that span a 128KB stripe boundary but ZFS limits ashift, which is derived from d_stripesize, to 13 (8KB) so we limit the stripesize reported to geom(8) to 4KB. This may result in a small number of additional I/Os to require splitting in nvme(4), however the NVMe I/O path is very efficient so these additional I/Os will cause very minimal (if any) difference in performance or CPU utilisation. This can be controller by the new sysctl kern.nvme.max_optimal_sectorsize. MFC after: 1 week Sponsored by: Multiplay Differential Revision: https://reviews.freebsd.org/D4446		2015-12-11 02:06:03 +00:00
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nvme_ctrlr_cmd.c	Use bitwise OR instead of logical OR when constructing value for	2014-06-10 21:40:43 +00:00
nvme_ctrlr.c	Refactor unmapped buffer address handling.	2015-07-23 19:13:41 +00:00
nvme_ns_cmd.c
nvme_ns.c	Limit stripesize reported from nvd(4) to 4K	2015-12-11 02:06:03 +00:00
nvme_private.h	nvme: remove CHATHAM related code	2015-04-08 21:52:06 +00:00
nvme_qpair.c	nvme: use BUS_SPACE_MAXSIZE for bus_dma_tag_create maxsize parameter	2015-04-09 00:37:55 +00:00
nvme_sysctl.c	Limit stripesize reported from nvd(4) to 4K	2015-12-11 02:06:03 +00:00
nvme_test.c	Extend some 32-bit fields and variables to 64-bit to prevent overflow	2013-10-08 15:47:22 +00:00
nvme_util.c
nvme.c	nvme: do not notify a consumer about failures that occur during initialization	2015-07-29 21:29:50 +00:00
nvme.h	Limit stripesize reported from nvd(4) to 4K	2015-12-11 02:06:03 +00:00