I have an adaptec 6805e RAID controller and I'm looking to compile the linux driver for ubuntu 20.04 (kernel=v5.4) but there have been a vast number of changes between kernel ~4x => 5x and I'm not a kernel developer.
OS:Ubuntu LTS 20.04Kernel:v5.4Adaptec 6805e:https://storage.microsemi.com/en-us/support/raid/sas_raid/sas-6805e/Any obvious major hurdles, or advice is appreciated, but right now the issue I'm having is trying to find a replacement for the 'pci_set_dma_max_seg_size' function. I have found the 'dma_set_max_seg_size' but that function accepts a generic device structure (struct device), whereas the adaptec code is using the (struct pci_dev) structure that seems to be specific for PCI devices.
aacraid-1.2.1-52011/linit.c:3992:10: error: implicit declaration of function ‘pci_set_dma_max_seg_size’; did you mean ‘dma_set_max_seg_size’? [-Werror=implicit-function-declaration] 3992 | error = pci_set_dma_max_seg_size(pdev,Like I said any help is appreciated and if this seems like the wrong way to resolve this problem I'm open to ideas -- I'd like to be able to utilize the benefits of more recent linux developments with a slightly older adaptec chipset.
Thanks
Reference materials:https://elixir.bootlin.com/linux/v5.4.128/source/include/linux