nvme: Add nvme_allocate_request_buf
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Authored by imp on Aug 22 2025, 1:15 AM.

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dab

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Reviewers

jhb
mav
markj
kib

Summary

When doing ioctls, we have to map the user data using vmapbuf. Rather
than reaching inside the buf, create nvme_allocate_request_buf to use
memdesc_buf. This also understands unmapped I/O.

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Repository

rG FreeBSD src repository

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Build Status

Buildable 66441
Build 63324: arc lint + arc unit

Event Timeline

imp created this revision.Aug 22 2025, 1:15 AM

Herald added a subscriber: dab. · View Herald TranscriptAug 22 2025, 1:15 AM

imp requested review of this revision.Aug 22 2025, 1:15 AM

imp added a parent revision: D52109: memdesc: Add memdesc_buf.

Harbormaster completed remote builds in B66441: Diff 160789.Aug 22 2025, 1:15 AM

imp added a child revision: D52111: nvme: On ioctl, use nvme_allocate_request_buf.Aug 22 2025, 1:15 AM

kib accepted this revision.Aug 22 2025, 12:49 PM

This revision is now accepted and ready to land.Aug 22 2025, 12:49 PM

jhb accepted this revision.Aug 22 2025, 2:21 PM

Revision Contents
Changeset List

Path

Size

sys/

dev/

nvme/

nvme_private.h

14 lines

Diff 160789

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sys/dev/nvme/nvme_private.h

nvme: Add nvme_allocate_request_bufAcceptedPublicActions