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author | Brad Smith <brad@cvs.openbsd.org> | 2008-09-08 07:38:34 +0000 |
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committer | Brad Smith <brad@cvs.openbsd.org> | 2008-09-08 07:38:34 +0000 |
commit | cc7af6d6f392fc0f3edd65a1d55a0600aaa52299 (patch) | |
tree | c2608848f342a4192ddbcfd677c41a34eae0bb6e /sys/scsi/scsi_all.h | |
parent | 8aa62324f07d22813b96308137003b7087e161a1 (diff) |
IEEE 802.3 Annex 28B.3 explicitly specifies the following relative
priorities of the technologies supported by 802.3 Selector Field
value.
1000BASE-T full duplex
1000BASE-T
100BASE-T2 full duplex
100BASE-TX full duplex
100BASE-T2
100BASE-T4
100BASE-TX
10BASE-T full duplex
10BAST-T
However PHY drivers did not honor the order such that 100BASE-T4 had
higher priority than 100BASE-TX full duplex. Fix a long standing bug
such that PHY drivers choose the highest common denominator ability.
This bug is exposed by a Cisco 3550 switch which inadvertently
announces 100BASE-T4 capability even though it is not capable of
100BASE-T4 operation, it is a 100BASE-TX switch.
From FreeBSD
Tested with dc(4), fxp(4), rl(4), sis(4).
Diffstat (limited to 'sys/scsi/scsi_all.h')
0 files changed, 0 insertions, 0 deletions