The DP83820/83821 has an undocumented limitation concerning jumbo frames
and TX checksum offload. In order for TX checksum offload to work, the
outgoing frame must fit entirely within the TX FIFO, which is 8192 bytes
in size. This isn't a problem, until you try to send a 9000-byte frame,
at which point the TX DMA engine goes to sleep. It turns out that if
you want to send a jumbo frame larger than 8170 bytes (8192 - 64), you
have to turn off the TX checksum support.
As a workaround, I changed nge_ioctl() so that if the user selects an
MTU larger than 8152 bytes, we clear the if_hwassist flags. The flags
will be set again once the MTU is reduced to a smaller value.
- Use db_printf() instead of printf().
- Clean up decode_syscall() to use regular if-then-else rather than goto's.
- Use the same method of parsing PID's for per-process traces as the x86
code does: that is, if the address passed in is not a valid kernel
address, treat it is a decimal pid.
- If the pid of the current process is specified, fall back to using the
"default" parameters for the trace as curproc's pcb is not valid at this
point.
MFC after: 1 week
we want the checksums calculated on a per-packet basis using control bits
in the extsts field of the DMA descriptor structure. For TX, the chip
seems to want these bits set in the field of the first descriptor in
a fragment chain, not the last.
412: warning: long unsigned int format, unsigned int arg (arg 3)
418: warning: long unsigned int format, unsigned int arg (arg 3)
424: warning: long unsigned int format, unsigned int arg (arg 3)
take a const 'name', since they dont modify anything.
159: warning: passing arg 1 of `getenv_int' discards qualifiers...
167: warning: passing arg 1 of `getenv' discards qualifiers from pointer..
vinumhdr.h:80: warning: redundant redeclaration of `vinum_cdevsw'
vinumext.h:239: warning: previous declaration of `vinum_cdevsw'
in each of the following files:
vinum.c, vinumconfig.c, vinumdaemon.c, vinuminterrupt.c, vinumio.c,
vinumioctl.c, vinumlock.c, vinummemory.c, vinumraid5.c, vinumrequest.c,
vinumrevive.c, vinumstate.c, vinumutil.c
musycc.c:449: warning: long unsigned int format, unsigned int arg (arg 3)
musycc.c:449: warning: long unsigned int format, unsigned int arg (arg 4)
musycc.c:453: warning: long unsigned int format, unsigned int arg (arg 3)
musycc.c:453: warning: long unsigned int format, unsigned int arg (arg 4)
musycc.c:453: warning: long unsigned int format, unsigned int arg (arg 5)
These warnings used to be confined to the alpha but are on all now.
554: passing arg 4 of `resource_string_value' from incompatible pointer type
576: passing arg 4 of `resource_string_value' from incompatible pointer type
593: passing arg 4 of `resource_string_value' from incompatible pointer type
commands that complete (with no apparent error) after
we receive a LIP. This has been observed mostly on
Local Loop topologies. To be safe, let's just mark
all active commands as dead if we get a LIP and we're
on a private or public loop.
MFC after: 4 weeks
