Re: [OPAE] Intel BBB MPF fifo alm full signals
Adler, Michael <michael.adler at intel.com> Sat, 06 Jul 2019 21:20:04 +0000
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--===============8052785406482729253== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Your AFU almost certainly ignored c1TxAlmFull and overran the ingress c1Tx = FIFO. Up to CCI_TX_ALMOST_FULL_THRESHOLD flits may be sent after c1TxAlmFul= l is asserted. Note that each individual line in a multi-line write counts = toward the limit. The other less likely possibility is that reset isn=E2=80= =99t wired properly to the cci_mpf() wrapper module. The FIFO primitive raises this error in simulation. On HW, the cci_mpf_prim= _fifo_lutram() stops all traffic by forcing the FIFO to appear empty once a= n overrun is detected. It does this because a deadlock is easier to debug t= han a dropped packet. If follow-up is needed, you could use https://github.com/OPAE/intel-fpga-bb= b/issues instead of this mailing list. -Michael From: OPAE <opae-bounces(a)lists.01.org> on behalf of Abel Eneyew <mul.abel= 43(a)gmail.com> Date: Saturday, July 6, 2019 at 3:43 PM To: "opae(a)lists.01.org" <opae(a)lists.01.org> Subject: [OPAE] Intel BBB MPF fifo alm full signals Is there any signals that allows me to know if the MPF fifo is full or not?= I am stuck at an error like this > intel-fpga-bbb/BBB_cci_mpf/hw/sim/../rtl/cci-mpf-prims/cci_mpf_prim_fifo_= lutram.sv<http://cci_mpf_prim_fifo_lutram.sv>", 252: > ase_top.platform_shim_ccip_std_afu.ccip_std_afu.mpf.mpf_pipe.mpf_edge_afu= .req_b.ba.c1_fifo.fifo.ctrl.unnamed$$_0: started at 2223785000ps failed at = 2223785000ps > Offending 'notFull' > Fatal: "intel-fpga-bbb/BBB_cci_mpf/hw/sim/../rtl/cci-mpf-prims/cci_mpf_pr= im_fifo_lutram.sv<http://cci_mpf_prim_fifo_lutram.sv>", 252: > ase_top.platform_shim_ccip_std_afu.ccip_std_afu.mpf.mpf_pipe.mpf_edge_afu= .req_b.ba.c1_fifo.fifo.ctrl.unnamed$$_0: at time 2223785000 ps > cci_mpf_prim_fifo_lutram: ENQ to full fifo > $finish called from file "intel-fpga-bbb/BBB_cci_mpf/hw/sim/../rtl/cci-mp= f-prims/cci_mpf_prim_fifo_lutram.sv<http://cci_mpf_prim_fifo_lutram.sv>", l= ine 252. The fifo in question can be found here https://github.com/OPAE/intel-fpga-= bbb/blob/master/BBB_cci_mpf/hw/rtl/cci-mpf-prims/cci_mpf_prim_fifo_lutram.s= v as can be seen in the code it can only enque 2 elements. --===============8052785406482729253== Content-Type: text/html MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="attachment.html" PGh0bWwgeG1sbnM6bz0idXJuOnNjaGVtYXMtbWljcm9zb2Z0LWNvbTpvZmZpY2U6b2ZmaWNlIiB4 bWxuczp3PSJ1cm46c2NoZW1hcy1taWNyb3NvZnQtY29tOm9mZmljZTp3b3JkIiB4bWxuczptPSJo dHRwOi8vc2NoZW1hcy5taWNyb3NvZnQuY29tL29mZmljZS8yMDA0LzEyL29tbWwiIHhtbG5zPSJo dHRwOi8vd3d3LnczLm9yZy9UUi9SRUMtaHRtbDQwIj4NCjxoZWFkPg0KPG1ldGEgaHR0cC1lcXVp dj0iQ29udGVudC1UeXBlIiBjb250ZW50PSJ0ZXh0L2h0bWw7IGNoYXJzZXQ9dXRmLTgiPg0KPG1l dGEgbmFtZT0iR2VuZXJhdG9yIiBjb250ZW50PSJNaWNyb3NvZnQgV29yZCAxNSAoZmlsdGVyZWQg bWVkaXVtKSI+DQo8c3R5bGU+PCEtLQ0KLyogRm9udCBEZWZpbml0aW9ucyAqLw0KQGZvbnQtZmFj 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