Date: Tue, 29 Sep 2015 19:59:14 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-bugs@FreeBSD.org Subject: [Bug 203445] Receive side scaling (RSS) for more than 16 queues not working in "ixl" driver Message-ID: <bug-203445-8@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=203445 Bug ID: 203445 Summary: Receive side scaling (RSS) for more than 16 queues not working in "ixl" driver Product: Base System Version: 11.0-CURRENT Hardware: amd64 OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: tushar.swain@gmail.com Issue - Receive side scaling (RSS) for more than 16 queues not working in "ixl" driver. Version: The FreeBSD driver version is 1.4.1 Description: My system has 20 CPU cores. The packet-processing application uses NIC RSS feature to filter packets to dedicated receive queues for each core. NIC is able to do RSS properly for Queue-0 to Queue-15, and packets reach the right receive queues. But not a single packet reach Queue-16/17/18/19. Instead Packets for Queue-16/17/18/18 reach Queue-0/1/2/3 Possibly some RSS specific register settings missing in the drivers that restricts NIC from using more than 16 receive queues Linux driver doesn't seem to exhibit this behavior. -- You are receiving this mail because: You are the assignee for the bug.
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