On Wed, Sep 06, 2023 at 05:38:28PM +0200, Olivier Croquin wrote:
> Hi,
>
> recently, we have bought servers with Mellanox Ethernet Adaptors of the
> MT2894
> Family [ConnectXâ6 Lx] :
> - OCP3 form factor : MCX631432AS-ADAI
> - PCIe form factor : MCX631102AS-ADAT
>
> We want to run OpenBSD on those servers.
> But, looking at the source code, we figured out that the MT2894 family is
> not
> supported.
>
> I wrote these "quick and dirty patch", hopping that sys/dev/pci/if_mcx.c
> includes
> everything that ConnectX-6 LX cards need to operate :
thanks, committed
the .h files are generated by an awk script
modify pcidevs then run make in sys/dev/pci
>
> ===================================================================
> --- sys/dev/pci/if_mcx.c Mon Nov 21 23:48:32 2022
> +++ sys/dev/pci/if_mcx.c Thu Aug 10 09:44:21 2023
> @@ -2657,6 +2657,7 @@ static const struct pci_matchid mcx_devices[] = {
> { PCI_VENDOR_MELLANOX, PCI_PRODUCT_MELLANOX_MT28800VF },
> { PCI_VENDOR_MELLANOX, PCI_PRODUCT_MELLANOX_MT28908 },
> { PCI_VENDOR_MELLANOX, PCI_PRODUCT_MELLANOX_MT2892 },
> + { PCI_VENDOR_MELLANOX, PCI_PRODUCT_MELLANOX_MT2894 },
> };
>
> struct mcx_eth_proto_capability {
>
> ===================================================================
> --- sys/dev/pci/pcidevs.h Sun Mar 19 03:38:43 2023
> +++ sys/dev/pci/pcidevs.h Thu Aug 10 09:44:21 2023
> @@ -7261,6 +7261,7 @@
> #define PCI_PRODUCT_MELLANOX_MT28908 0x101b /* ConnectX-6 */
> #define PCI_PRODUCT_MELLANOX_MT28908VF 0x101c /* ConnectX-6 VF */
> #define PCI_PRODUCT_MELLANOX_MT2892 0x101d /* ConnectX-6 Dx */
> +#define PCI_PRODUCT_MELLANOX_MT2894 0x101f /* ConnectX-6 Lx */
> #define PCI_PRODUCT_MELLANOX_CONNECTX_EN 0x6368 /* ConnectX EN */
>
> /* Mentor */
>
> ===================================================================
> --- sys/dev/pci/pcidevs_data.h Sun Mar 19 03:38:43 2023
> +++ sys/dev/pci/pcidevs_data.h Thu Aug 10 09:44:21 2023
> @@ -26184,6 +26184,10 @@ static const struct pci_known_product
> pci_known_produc
> "ConnectX-6 Dx",
> },
> {
> + PCI_VENDOR_MELLANOX, PCI_PRODUCT_MELLANOX_MT2894,
> + "ConnectX-6 Lx",
> + },
> + {
> PCI_VENDOR_MELLANOX, PCI_PRODUCT_MELLANOX_CONNECTX_EN,
> "ConnectX EN",
> },
>
> Thanks to this patch, the cards are recognized by the system. The first
> tests
> don't show any problem. But I'm not sure of anything, because I didn't
> check
> if_mcx.c with the datasheet of the cards (and I'm not able to do this).
>
> I would like to know if it could be possible to add an official support
> of the Mellanox MT2894 family (ConnectX-6 Lx) in the upcoming OpenBSD
> release ?
>
> Best regards
> Olivier.
>
> PS : for your information, already posted this morning on misc mailing list
> (https://marc.info/?l=openbsd-misc&m=169398814929531&w=2) but it wasn't
> maybe the best mailing list.
>
