Date: Mon, 08 Oct 2007 16:10:20 -0400 From: Mike Tancsa <mike@sentex.net> To: "Jack Vogel" <jfvogel@gmail.com>, "FreeBSD Stable List" <freebsd-stable@freebsd.org> Subject: Re: Heads UP - MFC for em coming shortly Message-ID: <200710082009.l98K9mCs042466@lava.sentex.ca> In-Reply-To: <2a41acea0710051328hdc0e49fr829b5ea35c95a413@mail.gmail.com > References: <2a41acea0710051328hdc0e49fr829b5ea35c95a413@mail.gmail.com>
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At 04:28 PM 10/5/2007, Jack Vogel wrote:
>I am preparing to update the em driver to the equivalent of my
>6.6.6 driver. Just doing some last minute sanity checking, I
>hope to the checkin before end of day.
Hi,
thanks for fixing the compile issue, but I have another
possible problem. Do you know if there were any performance
regressions with this rev? On one firewall / router, I am seeing
dropped packets. The PPS rate is only about 30k which should not be that much
Oct 8 02:15:02 c1 kernel: em2: Excessive collisions = 0
Oct 8 02:15:02 c1 kernel: em2: Sequence errors = 0
Oct 8 02:15:02 c1 kernel: em2: Defer count = 0
Oct 8 02:15:02 c1 kernel: em2: Missed Packets = 2068
Oct 8 02:15:02 c1 kernel: em2: Receive No Buffers = 280
Oct 8 02:15:02 c1 kernel: em2: Receive Length Errors = 0
Oct 8 02:15:02 c1 kernel: em2: Receive errors = 3
Oct 8 02:15:02 c1 kernel: em2: Crc errors = 3
Oct 8 02:15:02 c1 kernel: em2: Alignment errors = 0
Oct 8 02:15:02 c1 kernel: em2: Collision/Carrier extension errors = 0
Oct 8 02:15:02 c1 kernel: em2: RX overruns = 17
Oct 8 02:15:02 c1 kernel: em2: watchdog timeouts = 0
Oct 8 02:15:02 c1 kernel: em2: XON Rcvd = 0
Oct 8 02:15:02 c1 kernel: em2: XON Xmtd = 0
Oct 8 02:15:02 c1 kernel: em2: XOFF Rcvd = 0
Oct 8 02:15:02 c1 kernel: em2: XOFF Xmtd = 0
Oct 8 02:15:02 c1 kernel: em2: Good Packets Rcvd = 146043044
Oct 8 02:15:02 c1 kernel: em2: Good Packets Xmtd = 75481090
Oct 8 02:15:02 c1 kernel: em2: TSO Contexts Xmtd = 0
Oct 8 02:15:02 c1 kernel: em2: TSO Contexts Failed = 0
% vmstat -i
interrupt total rate
irq1: atkbd0 5 0
irq4: sio0 10094 0
irq16: em0 291014020 5831
irq17: em1 em2 em3 298574806 5983
irq19: atapci1 53969 1
cpu0: timer 99802510 1999
cpu1: timer 99791176 1999
Total 789246580 15815
Load avg is quite low, although top doesnt show any interrupt
activity for some reason.
The settings are all default
% sysctl -a dev.em.2
dev.em.2.%desc: Intel(R) PRO/1000 Network Connection Version - 6.6.6
dev.em.2.%driver: em
dev.em.2.%location: slot=0 function=0
dev.em.2.%pnpinfo: vendor=0x8086 device=0x108c subvendor=0x8086
subdevice=0x348f class=0x020000
dev.em.2.%parent: pci3
dev.em.2.debug_info: -1
dev.em.2.stats: -1
dev.em.2.rx_int_delay: 0
dev.em.2.tx_int_delay: 66
dev.em.2.rx_abs_int_delay: 66
dev.em.2.tx_abs_int_delay: 66
dev.em.2.rx_processing_limit: 100
em0: <Intel(R) PRO/1000 Network Connection Version - 6.6.6> port
0x3020-0x303f mem 0x88260000-0x8827ffff,0x88240000-0x8825ffff
irq 16 at device 0.0 on pci2
em0: Ethernet address: 00:15:17:0b:70:98
em0: [FAST]
em1: <Intel(R) PRO/1000 Network Connection Version - 6.6.6> port
0x3000-0x301f mem 0x88220000-0x8823ffff,0x88200000-0x8821ffff
irq 17 at device 0.1 on pci2
em1: Ethernet address: 00:15:17:0b:70:99
em1: [FAST]
pcib3: <ACPI PCI-PCI bridge> at device 28.5 on pci0
pci3: <ACPI PCI bus> on pcib3
em2: <Intel(R) PRO/1000 Network Connection Version - 6.6.6> port
0x2000-0x201f mem 0x88180000-0x8819ffff,0x88100000-0x8817ffff irq 17
at device 0.0 on pci3
em2: Ethernet address: 00:15:17:1e:94:0b
em2: [FAST]
pci3: <simple comms, UART> at device 0.3 (no driver attached)
pci3: <serial bus> at device 0.4 (no driver attached)
pcib4: <ACPI PCI-PCI bridge> at device 30.0 on pci0
pci4: <ACPI PCI bus> on pcib4
pci4: <display, VGA> at device 4.0 (no driver attached)
em3: <Intel(R) PRO/1000 Network Connection Version - 6.6.6> port
0x1100-0x113f mem 0x88020000-0x8803ffff,0x88000000-0x8801ffff irq 17
at device 5.0 on pci4
em3: Ethernet address: 00:15:17:1e:94:0c
em3: [FAST]
em0@pci2:0:0: class=0x020000 card=0x115e8086 chip=0x105e8086
rev=0x06 hdr=0x00
vendor = 'Intel Corporation'
device = 'PRO/1000 PT'
class = network
subclass = ethernet
cap 01[c8] = powerspec 2 supports D0 D3 current D0
cap 05[d0] = MSI supports 1 message, 64 bit
cap 10[e0] = PCI-Express 1 endpoint
em1@pci2:0:1: class=0x020000 card=0x115e8086 chip=0x105e8086
rev=0x06 hdr=0x00
vendor = 'Intel Corporation'
device = 'PRO/1000 PT'
class = network
subclass = ethernet
cap 01[c8] = powerspec 2 supports D0 D3 current D0
cap 05[d0] = MSI supports 1 message, 64 bit
cap 10[e0] = PCI-Express 1 endpoint
em2@pci3:0:0: class=0x020000 card=0x348f8086 chip=0x108c8086
rev=0x03 hdr=0x00
vendor = 'Intel Corporation'
device = 'PRO/1000 PM'
class = network
subclass = ethernet
cap 01[c8] = powerspec 2 supports D0 D3 current D0
cap 05[d0] = MSI supports 1 message, 64 bit
cap 10[e0] = PCI-Express 1 endpoint
em3@pci4:5:0: class=0x020000 card=0x348f8086 chip=0x10768086
rev=0x05 hdr=0x00
vendor = 'Intel Corporation'
device = '82547EI Gigabit Ethernet Controller'
class = network
subclass = ethernet
cap 01[dc] = powerspec 2 supports D0 D3 current D0
cap 07[e4] = PCI-X supports 2048 burst read, 1 split transaction
---Mike
>This will provide support for devices up to our latest, the
>next stage I'm planning will incorporate multiqueue and
>multiple locks that are already in my Oplin driver (ixgbe)
>but this will take a bit longer.
>
>This driver has the support for TSO in it but its not on
>by default, as soon as Andre is able to get that MFC'd
>it can be enabled via a compile option.
>
>Jack
>_______________________________________________
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