Re: kern/52111: wmX i82574L inoperative in monoprocessor mode (i386)

[Kengo NAKAHARA <k-nakahara%iij.ad.jp@localhost>]

The following reply was made to PR kern/52111; it has been noted by GNATS.

From: Kengo NAKAHARA <k-nakahara%iij.ad.jp@localhost>
To: gnats-bugs%NetBSD.org@localhost, kern-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
        netbsd-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/52111: wmX i82574L inoperative in monoprocessor mode (i386)
Date: Mon, 27 Mar 2017 11:27:17 +0900

 Hi,
 
 On 2017/03/26 7:15, kardel%netbsd.org@localhost wrote:
 > When booting a Soekris 6501 in mono processor mode (boot -1) wm interfaces are inoperative
 > as arp resolution does not complete at all.
 > On an amd64 system with other wm interfaces (i82572EI, i82583V) mono processor mode does not impair
 > interface operation.
 > 
 > Soekris interfaces:
 > wm0 at pci5 dev 0 function 0: Intel i82574L (rev. 0x00)
 > wm0: for TX and RX interrupting at msix0 vec 0 affinity to 0
 > wm0: for TX and RX interrupting at msix0 vec 1 affinity to 1
 > wm0: for LINK interrupting at msix0 vec 2
 > wm0: PCI-Express bus
 > wm0: 2048 words (8 address bits) SPI EEPROM, version 2.1.2, Image Unique ID 0000ffff
 > wm0: Ethernet address 00:00:aa:bb:cc:ec
 
 Hmm...., It is strange to me that wm(4) use two TX and RX interrupts on
 uniprocessor system. The TX and RX interrupt is limited by ncpu.
 At my reproduction environment NetBSD/i386(-current updated in today)
 on VMware ESXi with e1000e(82574), the wm(4) uses only one TX and RX
 interrupt.
 
 Could you show full dmesg?
 
 
 Thanks,
 
 -- 
 //////////////////////////////////////////////////////////////////////
 Internet Initiative Japan Inc.
 
 Device Engineering Section,
 IoT Platform Development Department,
 Network Division,
 Technology Unit
 
 Kengo NAKAHARA <k-nakahara%iij.ad.jp@localhost>