Date: Sun, 31 Jan 2010 00:37:43 -0800 From: Nick Rogers <ncrogers@gmail.com> To: stable@freebsd.org Subject: em(4) + ALTQ broken Message-ID: <147432021001310037n1b67f01bx4b4e8781321cea8@mail.gmail.com>
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I'm having problems getting PF + ALTQ to work on em(4) interfaces under 8.0-RELEASE. Kernel was rebuilt with the additional options necessary for ALTQ and what not. Same basic configuration works fine under 7.2-RELEASE. Basically, the queues create successfully but running a pfctl -vsq shows a zero packet/byte count for all queues, even the interface's root queues. This same problem is mentioned in PR kern/138392, and the following forum thread... http://forums.freebsd.org/showthread.php?t=6656 em(4)/e1000 driver from CURRENT does not fix the problem. Building an 8.0-RELEASE kernel with the em(4) driver from 7.2-RELEASE fixes the problem (i.e., replacing sys/dev/e1000 with that from 7.2). One of the machines im experiencing this on has the following intel chipset... [user@foo ~]$ sysctl dev.em.0 dev.em.0.%desc: Intel(R) PRO/1000 Network Connection 6.9.6 dev.em.0.%driver: em dev.em.0.%location: slot=0 function=0 dev.em.0.%pnpinfo: vendor=0x8086 device=0x10d3 subvendor=0x15d9 subdevice=0x040d class=0x020000 dev.em.0.%parent: pci3 dev.em.0.debug: -1 dev.em.0.stats: -1 dev.em.0.rx_int_delay: 0 dev.em.0.tx_int_delay: 66 dev.em.0.rx_abs_int_delay: 66 dev.em.0.tx_abs_int_delay: 66 dev.em.0.rx_processing_limit: 100 Is this issue receiving any attention? I ask because one of the em(4) driver contributors mentioned he had not heard of this problem in a recent thread regarding a different em(4) bug, and this is a pretty serious problem for me as I have many devices in production that need to be upgraded to 8.0, all running Intel interfaces and relying on ALTQ. I appreciate any updates or information and would be happy to test any patches and/or provide more information. Thanks.
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