[Bug 201644] cannot set ixgbe/ix tunables - regression
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bugzilla-noreply at freebsd.org
Fri Jul 17 05:56:14 UTC 2015
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=201644
Bug ID: 201644
Summary: cannot set ixgbe/ix tunables - regression
Product: Base System
Version: 10.2-BETA1
Hardware: Any
OS: Any
Status: New
Severity: Affects Many People
Priority: ---
Component: kern
Assignee: freebsd-bugs at FreeBSD.org
Reporter: lampa at fit.vutbr.cz
/boot/loader.conf:
hw.ix.rxd="4096"
hw.ix.txd="4096"
hw.ixgbe.rxd="4096"
hw.ixgbe.txd="4096"
sysctl hw.ix.rxd
hw.ix.rxd: 2048
SHOULD BE 4096!!!
ix0: <Intel(R) PRO/10GbE PCI-Express Network Driver, Version - 2.8.3> port
0xec00-0xec1f mem 0xf8f80000-0xf8ffffff,0xf8f7c000-0xf8f7ffff irq 32 at device
0.0 on pci5
It was working until the latest version of ixgbe driver. Tunable fetches were
deleted (why?) in the last version:
TUNABLE_INT("hw.ixgbe.rxd", &ixgbe_rxd);
SYSCTL_INT(_hw_ix, OID_AUTO, rxd, CTLFLAG_RDTUN, &ixgbe_rxd, 0,
"Number of receive descriptors per queue");
changed to:
SYSCTL_INT(_hw_ix, OID_AUTO, txd, CTLFLAG_RDTUN, &ixgbe_rxd, 0,
"Number of receive descriptors per queue");
and it stopped working .
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