Re: [openib-general] failure to create an FMR mapping 1K pages on memfree
On 2/27/07, Roland Dreier [EMAIL PROTECTED] wrote: Is it really returning -ENOMEM? It seems much more likely that you are hitting the code /* For Arbel, all MTTs must fit in the same page. */ if (mthca_is_memfree(dev) mr-attr.max_pages * sizeof *mr-mem.arbel.mtts PAGE_SIZE) return -EINVAL; I guess you could call this limit a driver design issue. Indeed, sorry for the in accorate description, mthca_fmr_alloc returns -EINVAL and the fmr pool code returns -ENOMEM. Thanks for the clarification. Or. ___ openib-general mailing list openib-general@openib.org http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
Re: [openib-general] failure to create an FMR mapping 1K pages on memfree
oops - i fogot to CC openib-general. On 2/26/07, Or Gerlitz [EMAIL PROTECTED] wrote: Hi Roland, I have got a report on failure to create FMR mapping 1K pages (that is 4MB) on memfree. I don't have the exact details (ie if Arbel/Sinai / what FW / etc) nor which exact check fails in mthca_fmr_alloc, but what's clear is that the latter function returns -ENOMEM when attr.max_pages is 1024 and it works fine when attr.max_pages is 256. Is this failure clear to you? if yes, does a HW or FW limit is being hit or its a driver design issue? Or. ___ openib-general mailing list openib-general@openib.org http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
Re: [openib-general] failure to create an FMR mapping 1K pages on memfree
I have got a report on failure to create FMR mapping 1K pages (that is 4MB) on memfree. I don't have the exact details (ie if Arbel/Sinai / what FW / etc) nor which exact check fails in mthca_fmr_alloc, but what's clear is that the latter function returns -ENOMEM when attr.max_pages is 1024 and it works fine when attr.max_pages is 256. Is this failure clear to you? if yes, does a HW or FW limit is being hit or its a driver design issue? Is it really returning -ENOMEM? It seems much more likely that you are hitting the code /* For Arbel, all MTTs must fit in the same page. */ if (mthca_is_memfree(dev) mr-attr.max_pages * sizeof *mr-mem.arbel.mtts PAGE_SIZE) return -EINVAL; I guess you could call this limit a driver design issue. - R. ___ openib-general mailing list openib-general@openib.org http://openib.org/mailman/listinfo/openib-general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
