diff options
| author | harti <harti@FreeBSD.org> | 2003-10-29 15:07:10 +0000 |
|---|---|---|
| committer | harti <harti@FreeBSD.org> | 2003-10-29 15:07:10 +0000 |
| commit | aa5acc483c0b0938d52f4204f3801db5b80a63f7 (patch) | |
| tree | 2d348cd1b7cb29d107b8a8052df21a81c637af3b /share/man/man4/hatm.4 | |
| parent | b9fecc82d3e55cefb5fd427307272fed377b780a (diff) | |
| download | FreeBSD-src-aa5acc483c0b0938d52f4204f3801db5b80a63f7.zip FreeBSD-src-aa5acc483c0b0938d52f4204f3801db5b80a63f7.tar.gz | |
Make the maximum number of pages for external mbufs configurable in
the kernel environment and accessible as a RO sysctl.
Explain that the HE155 will not work in 64-bit/66MHz slots, but may work
in 64-bit/33MHz slots.
Diffstat (limited to 'share/man/man4/hatm.4')
| -rw-r--r-- | share/man/man4/hatm.4 | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/share/man/man4/hatm.4 b/share/man/man4/hatm.4 index afe1f2a..d9266c2 100644 --- a/share/man/man4/hatm.4 +++ b/share/man/man4/hatm.4 @@ -201,11 +201,15 @@ Maximum number of active TPDs per connection. This controls the maximum number of outstanding packet chunks per connection and thus the maximum delay packets can have because of queueing on the adapter. If set to 0, a connection can eat up all available TPDs. +.It Cm hw.hatmN.mbuf_max_pages +Maximum number of memory pages allocated to small external mbufs. +This must not be zero and not larger than 65536. .El .Sh CAVEATS When putting a HE155 into a 64-bit 66MHz PCI slot the machine may hang. -This occures very early in the POST so that even the display does not -turn on. HE622 cards work just fine in 64-bit slots. +This occures very early in the POST so that even the display does not turn on. +The HE155 runs only in 33MHz slots (either 32 or 64-bit). +HE622 cards work just fine in 64-bit slots. .Pp The driver may not work with bounce buffer, because of .Fn bus_dma_sync |
