Sorry for repeating, now in text mode. Is there a way to balance IRQs from a network card among Intel CPU cores with Intel 5000 series chipset?
We tried the Broadcom network card (lspci is below) both in MSI and io-apic mode, but found that the card interrupt may be moved to another logical CPU, but not balanced among CPUs/cores. Is that a policy of Intel chipset, that linux cannot overwrite? Can it be configured somewhere and by which tools? Any clues and directions would be very much appreciated. -------------------------------------------------------------------------------- CONFIG_IRQ_BALANCE=y and with the same (2.6.9, patched) kernel irq balancing works properly with older Intel and with AMD HW. #lspci -v Is there a way to balance IRQs from a network card among Intel CPU cores with Intel 5000 series chipset? We tried the Broadcom network card (below lspci) both in MSI and io-apic mode, but found that the card interrupt may be moved to another logical CPU, but not balanced among CPUs/cores. Is that a policy of Intel chipset, that linux cannot overwrite? Can it be configured somewhere and by which tools? Any clues and directions would be very much appreciated. -------------------------------------------------------------------------------- CONFIG_IRQ_BALANCE=y and with the same (2.6.9, patched) kernel irq balancing works properly with older Intel and with AMD HW. #lspci -v 00:00.0 Host bridge: Intel Corporation 5000P Chipset Memory Controller Hub (rev 92) Subsystem: Intel Corporation: Unknown device 8086 Flags: bus master, fast devsel, latency 0, IRQ 169 Capabilities: [50] Power Management version 2 Capabilities: [58] Message Signalled Interrupts: 64bit- Queue=0/1 Enable- Capabilities: [6c] Express Root Port (Slot-) IRQ 0 Capabilities: [100] Advanced Error Reporting 00:02.0 PCI bridge: Intel Corporation 5000 Series Chipset PCI Express x4 Port 2 (rev 92) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=1a, subordinate=25, sec-latency=0 Capabilities: [50] Power Management version 2 Capabilities: [58] Message Signalled Interrupts: 64bit- Queue=0/1 Enable- Capabilities: [6c] Express Root Port (Slot-) IRQ 0 Capabilities: [100] Advanced Error Reporting 00:03.0 PCI bridge: Intel Corporation 5000 Series Chipset PCI Express x4 Port 3 (rev 92) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=04, subordinate=04, sec-latency=0 I/O behind bridge: 00005000-00005fff Memory behind bridge: c8000000-c9ffffff Prefetchable memory behind bridge: 00000000c7f00000-00000000c7f00000 Capabilities: [50] Power Management version 2 Capabilities: [58] Message Signalled Interrupts: 64bit- Queue=0/1 Enable- Capabilities: [6c] Express Root Port (Slot-) IRQ 0 Capabilities: [100] Advanced Error Reporting 00:04.0 PCI bridge: Intel Corporation 5000 Series Chipset PCI Express x8 Port 4-5 (rev 92) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=10, subordinate=10, sec-latency=0 I/O behind bridge: 00006000-0000ffff Capabilities: [50] Power Management version 2 Capabilities: [58] Message Signalled Interrupts: 64bit- Queue=0/1 Enable- Capabilities: [6c] Express Root Port (Slot-) IRQ 0 Capabilities: [100] Advanced Error Reporting 00:05.0 PCI bridge: Intel Corporation 5000 Series Chipset PCI Express x4 Port 5 (rev 92) (prog-if 00 [Normal decode]) Flags: fast devsel Bus: primary=00, secondary=45, subordinate=45, sec-latency=0 Capabilities: [50] Power Management version 2 Capabilities: [58] Message Signalled Interrupts: 64bit- Queue=0/1 Enable- Capabilities: [6c] Express Root Port (Slot-) IRQ 0 Capabilities: [100] Advanced Error Reporting 00:06.0 PCI bridge: Intel Corporation 5000 Series Chipset PCI Express x8 Port 6-7 (rev 92) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=07, subordinate=07, sec-latency=0 Capabilities: [50] Power Management version 2 Capabilities: [58] Message Signalled Interrupts: 64bit- Queue=0/1 Enable- Capabilities: [6c] Express Root Port (Slot-) IRQ 0 Capabilities: [100] Advanced Error Reporting 00:07.0 PCI bridge: Intel Corporation 5000 Series Chipset PCI Express x4 Port 7 (rev 92) (prog-if 00 [Normal decode]) Flags: fast devsel Bus: primary=00, secondary=44, subordinate=44, sec-latency=0 Capabilities: [50] Power Management version 2 Capabilities: [58] Message Signalled Interrupts: 64bit- Queue=0/1 Enable- Capabilities: [6c] Express Root Port (Slot-) IRQ 0 Capabilities: [100] Advanced Error Reporting 00:08.0 System peripheral: Intel Corporation 5000 Series Chipset DMA Engine (rev 92) Subsystem: IBM: Unknown device 02dd Flags: bus master, fast devsel, latency 0, IRQ 169 Memory at fe700000 (64-bit, non-prefetchable) [size=1K] Capabilities: [50] Power Management version 2 Capabilities: [58] Message Signalled Interrupts: 64bit- Queue=0/0 Enable- Capabilities: [6c] Express Unknown type IRQ 0 00:10.0 Host bridge: Intel Corporation 5000 Series Chipset Error Reporting Registers (rev 92) Subsystem: IBM: Unknown device 02dd Flags: fast devsel 00:10.1 Host bridge: Intel Corporation 5000 Series Chipset Error Reporting Registers (rev 92) Subsystem: Intel Corporation: Unknown device 8086 Flags: fast devsel 00:10.2 Host bridge: Intel Corporation 5000 Series Chipset Error Reporting Registers (rev 92) Subsystem: Intel Corporation: Unknown device 8086 Flags: fast devsel 00:11.0 Host bridge: Intel Corporation 5000 Series Chipset Reserved Registers (rev 92) Subsystem: Intel Corporation: Unknown device 8086 Flags: fast devsel 00:13.0 Host bridge: Intel Corporation 5000 Series Chipset Reserved Registers (rev 92) Subsystem: Intel Corporation: Unknown device 8086 Flags: fast devsel 00:15.0 Host bridge: Intel Corporation 5000 Series Chipset FBD Registers (rev 92) Subsystem: IBM: Unknown device 02dd Flags: fast devsel 00:16.0 Host bridge: Intel Corporation 5000 Series Chipset FBD Registers (rev 92) Subsystem: IBM: Unknown device 02dd Flags: fast devsel 00:1c.0 PCI bridge: Intel Corporation 631xESB/632xESB/3100 Chipset PCI Express Root Port 1 (rev 09) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=02, subordinate=03, sec-latency=0 Memory behind bridge: cd000000-cfffffff Capabilities: [40] Express Root Port (Slot-) IRQ 0 Capabilities: [80] Message Signalled Interrupts: 64bit- Queue=0/0 Enable- Capabilities: [90] #0d [0000] Capabilities: [a0] Power Management version 2 Capabilities: [100] Virtual Channel Capabilities: [180] Unknown (5) 00:1c.1 PCI bridge: Intel Corporation 631xESB/632xESB/3100 Chipset PCI Express Root Port 2 (rev 09) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=05, subordinate=06, sec-latency=0 Memory behind bridge: ca000000-ccffffff Capabilities: [40] Express Root Port (Slot-) IRQ 0 Capabilities: [80] Message Signalled Interrupts: 64bit- Queue=0/0 Enable- Capabilities: [90] #0d [0000] Capabilities: [a0] Power Management version 2 Capabilities: [100] Virtual Channel Capabilities: [180] Unknown (5) 00:1d.0 USB Controller: Intel Corporation 631xESB/632xESB/3100 Chipset UHCI USB Controller #1 (rev 09) (prog-if 00 [UHCI]) Subsystem: IBM: Unknown device 02dd Flags: bus master, medium devsel, latency 0, IRQ 193 I/O ports at 2200 [size=32] 00:1d.1 USB Controller: Intel Corporation 631xESB/632xESB/3100 Chipset UHCI USB Controller #2 (rev 09) (prog-if 00 [UHCI]) Subsystem: IBM: Unknown device 02dd Flags: bus master, medium devsel, latency 0, IRQ 201 I/O ports at 2600 [size=32] 00:1d.2 USB Controller: Intel Corporation 631xESB/632xESB/3100 Chipset UHCI USB Controller #3 (rev 09) (prog-if 00 [UHCI]) Subsystem: IBM: Unknown device 02dd Flags: bus master, medium devsel, latency 0, IRQ 193 I/O ports at 2a00 [size=32] 00:1d.3 USB Controller: Intel Corporation 631xESB/632xESB/3100 Chipset UHCI USB Controller #4 (rev 09) (prog-if 00 [UHCI]) Subsystem: IBM: Unknown device 02dd Flags: bus master, medium devsel, latency 0, IRQ 201 I/O ports at 2e00 [size=32] 00:1d.7 USB Controller: Intel Corporation 631xESB/632xESB/3100 Chipset EHCI USB2 Controller (rev 09) (prog-if 20 [EHCI]) Subsystem: IBM: Unknown device 02dd Flags: bus master, medium devsel, latency 0, IRQ 193 Memory at f9000000 (32-bit, non-prefetchable) [size=1K] Capabilities: [50] Power Management version 2 Capabilities: [58] Debug port 00:1e.0 PCI bridge: Intel Corporation 82801 PCI Bridge (rev d9) (prog-if 01 [Subtractive decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=00, secondary=01, subordinate=01, sec-latency=0 I/O behind bridge: 00003000-00004fff Memory behind bridge: de000000-dfffffff Prefetchable memory behind bridge: 00000000d0000000-00000000ddf00000 Capabilities: [50] #0d [0000] 00:1f.0 ISA bridge: Intel Corporation 631xESB/632xESB/3100 Chipset LPC Interface Controller (rev 09) Flags: bus master, medium devsel, latency 0 00:1f.2 IDE interface: Intel Corporation 631xESB/632xESB/3100 Chipset SATA Storage Controller IDE (rev 09) (prog-if 80 [Master]) Subsystem: IBM: Unknown device 02dd Flags: bus master, 66Mhz, medium devsel, latency 0, IRQ 185 I/O ports at <ignored> I/O ports at <ignored> I/O ports at <ignored> I/O ports at <ignored> I/O ports at 0480 [size=16] Capabilities: [70] Power Management version 2 00:1f.3 SMBus: Intel Corporation 631xESB/632xESB/3100 Chipset SMBus Controller (rev 09) Subsystem: IBM: Unknown device 02dd Flags: medium devsel, IRQ 185 I/O ports at 0440 [size=32] 01:06.0 VGA compatible controller: ATI Technologies Inc ES1000 (rev 02) (prog-if 00 [VGA]) Subsystem: IBM: Unknown device 0305 Flags: bus master, stepping, medium devsel, latency 64, IRQ 201 Memory at d0000000 (32-bit, prefetchable) [size=128M] I/O ports at 4000 [size=256] Memory at dfff0000 (32-bit, non-prefetchable) [size=64K] Capabilities: [50] Power Management version 2 02:00.0 PCI bridge: Broadcom: Unknown device 0103 (rev c2) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=02, secondary=03, subordinate=03, sec-latency=0 Memory behind bridge: cd000000-cfffffff Capabilities: [60] Express PCI/PCI-X Bridge IRQ 0 Capabilities: [90] PCI-X bridge device. Capabilities: [b0] Power Management version 2 Capabilities: [100] Advanced Error Reporting Capabilities: [14c] Power Budgeting Capabilities: [160] Device Serial Number 23-ba-18-fe-ff-5e-14-00 03:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet (rev 11) Subsystem: IBM: Unknown device 0342 Flags: bus master, 66Mhz, medium devsel, latency 64, IRQ 169 Memory at ce000000 (64-bit, non-prefetchable) [size=32M] Capabilities: [40] PCI-X non-bridge device. Capabilities: [48] Power Management version 2 Capabilities: [50] Vital Product Data Capabilities: [58] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable- 04:00.0 RAID bus controller: Adaptec AAC-RAID (Rocket) (rev 02) Subsystem: IBM ServeRAID 8k/8k-l8 Flags: bus master, fast devsel, latency 0, IRQ 209 Memory at c9e00000 (64-bit, non-prefetchable) [size=2M] Memory at c7fe0000 (64-bit, prefetchable) [size=128K] I/O ports at 5000 [size=256] Capabilities: [40] Express Endpoint IRQ 0 Capabilities: [e0] Message Signalled Interrupts: 64bit+ Queue=0/2 Enable- Capabilities: [100] Advanced Error Reporting 05:00.0 PCI bridge: Broadcom: Unknown device 0103 (rev c2) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=05, secondary=06, subordinate=06, sec-latency=0 Memory behind bridge: ca000000-ccffffff Capabilities: [60] Express PCI/PCI-X Bridge IRQ 0 Capabilities: [90] PCI-X bridge device. Capabilities: [b0] Power Management version 2 Capabilities: [100] Advanced Error Reporting Capabilities: [14c] Power Budgeting Capabilities: [160] Device Serial Number 25-ba-18-fe-ff-5e-14-00 06:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet (rev 11) Subsystem: IBM: Unknown device 0342 Flags: bus master, 66Mhz, medium devsel, latency 64, IRQ 209 Memory at ca000000 (64-bit, non-prefetchable) [size=32M] Capabilities: [40] PCI-X non-bridge device. Capabilities: [48] Power Management version 2 Capabilities: [50] Vital Product Data Capabilities: [58] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable- 1a:00.0 PCI bridge: Intel Corporation 6311ESB/6321ESB PCI Express Upstream Port (rev 01) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=1a, secondary=1b, subordinate=24, sec-latency=0 Capabilities: [44] Express Upstream Port IRQ 0 Capabilities: [70] Power Management version 2 Capabilities: [80] #0d [0000] Capabilities: [100] Advanced Error Reporting 1a:00.3 PCI bridge: Intel Corporation 6311ESB/6321ESB PCI Express to PCI-X Bridge (rev 01) (prog-if 00 [Normal decode]) Flags: fast devsel Bus: primary=1a, secondary=25, subordinate=25, sec-latency=64 Capabilities: [44] Express PCI/PCI-X Bridge IRQ 0 Capabilities: [6c] Power Management version 2 Capabilities: [80] #0d [0000] Capabilities: [d8] PCI-X bridge device. Capabilities: [100] Advanced Error Reporting 1b:00.0 PCI bridge: Intel Corporation 6311ESB/6321ESB PCI Express Downstream Port E1 (rev 01) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=1b, secondary=1c, subordinate=1c, sec-latency=0 Capabilities: [44] Express Downstream Port (Slot-) IRQ 0 Capabilities: [60] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable- Capabilities: [70] Power Management version 2 Capabilities: [80] #0d [0000] Capabilities: [100] Advanced Error Reporting 1b:01.0 PCI bridge: Intel Corporation 6311ESB/6321ESB PCI Express Downstream Port E2 (rev 01) (prog-if 00 [Normal decode]) Flags: bus master, fast devsel, latency 0 Bus: primary=1b, secondary=24, subordinate=24, sec-latency=0 Capabilities: [44] Express Downstream Port (Slot-) IRQ 0 Capabilities: [60] Message Signalled Interrupts: 64bit+ Queue=0/0 Enable- Capabilities: [70] Power Management version 2 Capabilities: [80] #0d [0000] Capabilities: [100] Advanced Error Reporting -- Sincerely, Robert Iakobashvili, coroberti %x40 gmail %x2e com ................................................................... 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