Hi Jing Huang, I'm Joe Jin from Oracle Linux team, recently we tried brocade device on HP DL385 with OracleVM and found the device could not worked for driver could not applied enough memory with below error message: bfad[0]: memory allocation failed with num_sgpgs: 2048 bfad[0]: trying to allocate memory with num_sgpgs: 1024 bfad[0]: memory allocation failed with num_sgpgs: 1024 bfad[0]: trying to allocate memory with num_sgpgs: 512 bfad0 bfad_hal_mem_alloc failure Not enough memory to attach all Brocade HBA ports, System may need more I have did some investigated, here are some information: OracleVM xen it 64bit and Dom0 is 32bit, the root cause is when 32bit Dom0 running on 64bit hypervisor(xen), it on compat mode and xen just allowed to allocate 1M(order = 8) contiguous memory, if not of compat mode, Dom0 would successed applied 2M(order=9) contiguous memory. To let it the device works, we have to decrease driver config params like num_sgpgs, reqq_size, rspq_size and so on, I'm not sure if there are some releations among them, also did not known what values is good enough for performance, woule you like give me some advices for those? we have to reduce bfa driver DMA memory no more than 1M. Thanks, Joe -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
