Expand the serial number space by using more bits from the GUID. Reviewed-by: Jubin John <jubin.john@xxxxxxxxx> Signed-off-by: Dean Luick <dean.luick@xxxxxxxxx> Signed-off-by: Ira Weiny <ira.weiny@xxxxxxxxx> --- drivers/infiniband/hw/hfi1/chip.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/hfi1/chip.c b/drivers/infiniband/hw/hfi1/chip.c index becc7b11e31e..c93683496614 100644 --- a/drivers/infiniband/hw/hfi1/chip.c +++ b/drivers/infiniband/hw/hfi1/chip.c @@ -14601,8 +14601,14 @@ struct hfi1_devdata *hfi1_init_dd(struct pci_dev *pdev, /* set up LCB access - must be after set_up_interrupts() */ init_lcb_access(dd); + /* + * Serial number is created from the base guid: + * [27:24] = base guid [38:35] + * [23: 0] = base guid [23: 0] + */ snprintf(dd->serial, SERIAL_MAX, "0x%08llx\n", - dd->base_guid & 0xFFFFFF); + (dd->base_guid & 0xFFFFFF) | + ((dd->base_guid >> 11) & 0xF000000)); dd->oui1 = dd->base_guid >> 56 & 0xFF; dd->oui2 = dd->base_guid >> 48 & 0xFF; -- 1.8.2 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
