diff options
| author | Ira Weiny <ira.weiny@intel.com> | 2016-07-27 21:09:40 -0400 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-08-02 22:46:21 -0400 |
| commit | fc0b76c0168dc7577792c371c16bad200009a62d (patch) | |
| tree | c53540219946e33bc6f429a9d7ecebfbadef960c /drivers | |
| parent | c49298026908a8ce9dcf01ed68734ad171cef98b (diff) | |
| download | linux-fc0b76c0168dc7577792c371c16bad200009a62d.tar.bz2 | |
IB/hfi1: Expand reported serial number
Expand the serial number space by using more bits
from the GUID.
Reviewed-by: Jubin John <jubin.john@intel.com>
Signed-off-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/chip.c | 8 |
1 files changed, 7 insertions, 1 deletions
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; |