K 10
svn:author
V 2
np
K 8
svn:date
V 27
2021-02-22T23:57:34.846890Z
K 7
svn:log
V 754
cxgbe(4): Save proper zone index on low memory in refill_fl().

When refill_fl() fails to allocate large (9/16KB) mbuf cluster, it
falls back to safe (4KB) ones.  But it still saved into sd->zidx
the original fl->zidx instead of fl->safe_zidx.  It caused problems
with the later use of that cluster, including memory and/or data
corruption.

While there, make refill_fl() to use the safe zone for all following
clusters for the call, since it is unlikely that large succeed.

MFC after:	3 days
Sponsored by:	iXsystems, Inc.
Reviewed by:	np, jhb
Differential Revision:	https://reviews.freebsd.org/D28716

(cherry picked from commit 294e62bebf36f873fd083d2fe8edd78919dda4e8)

Git Hash:   ab88a1ff14ef1db0296af1d2be648b784ba4e614
Git Author: mav@FreeBSD.org
END