nvme: Tweak completion timeout loop

* Rename delta_t to avoid misleading simplistic syntax highlighters
* Simplify the increment calculation

Sponsored by:	Klara, Inc.
Sponsored by:	NetApp, Inc.
Reviewed by:	imp
Differential Revision:	https://reviews.freebsd.org/D52973

This commit is contained in:

Dag-Erling Smørgrav

2025-10-08 12:07:13 +02:00

parent d96f9a4688

commit 4070ae0e9a

1 changed files with 3 additions and 3 deletions

									
										sys/dev/nvme/nvme_private.h
									
		+3
		-3
	
												View File
												
				@@ -463,13 +463,13 @@ static __inline void

				nvme_completion_poll(struct nvme_completion_poll_status *status)

				{

					int timeout = ticks + 10 * hz;

					sbintime_t delta_t = SBT_1US;

					sbintime_t delta = SBT_1US;

					while (!atomic_load_acq_int(&status->done)) {

						if (timeout - ticks < 0)

							panic("NVME polled command failed to complete within 10s.");

						pause_sbt("nvme", delta_t, 0, C_PREL(1));

						delta_t = min(SBT_1MS, delta_t * 3 / 2);

						pause_sbt("nvme", delta, 0, C_PREL(1));

						delta = min(SBT_1MS, delta + delta / 2);

					}

				}