On 8/18/21 1:52 AM, Kristof Provost wrote:
The branch main has been updated by kp:
URL:
https://cgit.FreeBSD.org/src/commit/?id=a051ca72e2815b9bbba1e422f5abf22bc2a01551
commit a051ca72e2815b9bbba1e422f5abf22bc2a01551
Author: Kristof Provost <[email protected]>
AuthorDate: 2021-08-07 18:02:21 +0000
Commit: Kristof Provost <[email protected]>
CommitDate: 2021-08-18 06:48:27 +0000
Introduce m_get3()
Introduce m_get3() which is similar to m_get2(), but can allocate up to
MJUM16BYTES bytes (m_get2() can only allocate up to MJUMPAGESIZE).
This simplifies the bpf improvement in f13da24715.
Suggested by: glebius
Differential Revision: https://reviews.freebsd.org/D31455
Hmm, if this looped the way m_getm2() does I could use this in
icl_cxgbei_conn_pdu_append_data() in sys/dev/cxgbe/cxgbei/icl_cxgbei.c
where the code currently allocates 16k jumbo's by hand and then uses
m_getm2() for the trailer.
One almost wants a variant of m_getm*() where you can give an explicit
"max cluster size" perhaps instead of having to know the magic
implicit sizes for m_getm2 vs m_getm3.
--
John Baldwin
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