Hi,
whether T2080 processor will support jumbo frames?
If it is support, How much MTU is possible to configure?
Regards
Karunakaran R
Yes, T2080 does support jumbo frames of up to 9.6KB
Have a great day,
Platon
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Hi,
Thanks for your reply.
if i try to change the MTU using "ifconfig fm1-mac3 mtu 8000", it gives error "fsl_dpa ethernet.16 fm1-mac3: Invalid L3 mtu 8000 (must be between 64 and 1500)."
Afterwards I changed the FSL_FM_MAX_FRAME_SIZE as 9600 in kernel configuration. it cause the below booting error in FMAN driver and ethernet interface also not creating.
FMAN(0)-Performance mode - no OH support...
[ 1.821754] This configuration will not work due to over buffer allocation (14 buffers)...
[ 1.830036] FMAN(0) Fifo size settings:
[ 1.833963] - Total buffers available(192 - 256B/buffer)
[ 1.839458] - Total throughput(2Gbps)
[ 1.843299] - Max frame size(9600B)
[ 1.846966] - 1G ports TX 2(44 bufs set (min: 44))
[ 1.851938] - 1G ports RX 2(47 bufs set (min: 47))
[ 1.856910] - OH-HC ports 1(8)
[ 1.860141] - Shared extra buffers(16)
[ 1.864094] fsl-fman: probe of ffe400000.fman failed with error -5
[ 1.870355] Freescale FM module (Aug 25 2015:10:36:20), FMD API version 21.1.0
[ 1.877755] fsl-fman-port: probe of ffe482000.port failed with error -5
[ 1.884410] fsl-fman-port: probe of ffe483000.port failed with error -5
[ 1.891063] fsl-fman-port: probe of ffe484000.port failed with error -5
[ 1.897718] fsl-fman-port: probe of ffe485000.port failed with error -5
[ 1.904373] fsl-fman-port: probe of ffe486000.port failed with error -5
[ 1.911027] fsl-fman-port: probe of ffe487000.port failed with error -5
[ 1.917693] fsl-fman-port: probe of ffe48a000.port failed with error -5
[ 1.924348] fsl-fman-port: probe of ffe4aa000.port failed with error -5
[ 1.931005] fsl-fman-port: probe of ffe48b000.port failed with error -5
[ 1.937661] fsl-fman-port: probe of ffe4ab000.port failed with error -5
[ 1.944384] Freescale FM Ports module (Aug 25 2015:10:36:21)
[ 1.950055] fsl_mac: mac.c:417:mac_load() fsl_mac: FSL FMan MAC API based driver ()
[ 1.957849] fsl_mac ffe4e4000.ethernet: fm_bind(/soc@ffe000000/fman@400000) failed
[ 1.965467] fsl_mac ffe4e6000.ethernet: fm_bind(/soc@ffe000000/fman@400000) failed
[ 1.973154] fsl_dpa: dpaa_eth.c:1078:dpa_load() FSL DPAA Ethernet driver ()
[ 1.980290] fsl_dpa ethernet.16: dev_get_drvdata(ffe4e4000.ethernet) failed
[ 1.987277] fsl_dpa: probe of ethernet.16 failed with error -22
[ 1.993257] fsl_dpa ethernet.17: dev_get_drvdata(ffe4e6000.ethernet) failed
[ 2.000242] fsl_dpa: probe of ethernet.17 failed with error -22
[ 2.006188] fsl_dpa_shared: dpaa_eth_shared.c:858:dpa_shared_load() FSL DPAA Shared Ethernet driver ()
[ 2.015635] fsl_dpa_proxy: dpaa_eth_proxy.c:345:dpa_proxy_load() FSL DPAA Proxy initialization driver ()
[ 2.025248] fsl_dpa_proxy-proxy ethernet.16: missing fsl,bman-buffer-pools device tree entry
[ 2.033707] fsl_dpa_proxy-proxy: probe of ethernet.16 failed with error -22
[ 2.040689] fsl_dpa_proxy-proxy ethernet.17: missing fsl,bman-buffer-pools device tree entry
[ 2.049149] fsl_dpa_proxy-proxy: probe of ethernet.17 failed with error -22
[ 2.056140] fsl_oh: offline_port.c:853:oh_port_load() FSL FMan Offline Parsing port driver ()
Any other configuration need to do other than FSL_FM_MAX_FRAME_SIZE?