Date: Mon, 27 Oct 2003 08:21:59 -0800 (PST) From: Hartmut Brandt <harti@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/dev/hatm if_hatm_intr.c Message-ID: <200310271621.h9RGLxAC094242@repoman.freebsd.org>
next in thread | raw e-mail | index | archive | help
harti 2003/10/27 08:21:59 PST
FreeBSD src repository
Modified files:
sys/dev/hatm if_hatm_intr.c
Log:
When we cannot allocate an external buffer (bacause we've hit
the maximum number of pages for buffers) return -1 instead of 0.
This fixes a panic under conditions when many mbufs are needed.
Update the head pointer of the receive buffer pool queue even when
we could not supply a buffer to the chip. Otherwise the chip will
not re-interrupt us for another try. A better strategy would probably
be to remember this condition and to supply buffers without an interrupt
as soon as buffers get available.
Revision Changes Path
1.6 +5 -9 src/sys/dev/hatm/if_hatm_intr.c
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200310271621.h9RGLxAC094242>