ice: do not abort devlink info if board identifier can't be found

[ Upstream commit a8f89fa27773a8c96fd09fb4e2f4892d794f21f6 ]

The devlink dev info command reports version information about the
device and firmware running on the board. This includes the "board.id"
field which is supposed to represent an identifier of the board design.
The ice driver uses the Product Board Assembly identifier for this.

In some cases, the PBA is not present in the NVM. If this happens,
devlink dev info will fail with an error. Instead, modify the
ice_info_pba function to just exit without filling in the context
buffer. This will cause the board.id field to be skipped. Log a dev_dbg
message in case someone wants to confirm why board.id is not showing up
for them.

Fixes: e961b679fb0b ("ice: add board identifier info to devlink .info_get")
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Tony Brelinski <tonyx.brelinski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20210819223451.245613-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/ethernet/intel/ice/ice_devlink.c b/drivers/net/ethernet/intel/ice/ice_devlink.c
index 511da59..f18ce43 100644 (file)
--- a/drivers/net/ethernet/intel/ice/ice_devlink.c
+++ b/drivers/net/ethernet/intel/ice/ice_devlink.c
@@ -23,7 +23,9 @@ static int ice_info_pba(struct ice_pf *pf, char *buf, size_t len)
 
        status = ice_read_pba_string(hw, (u8 *)buf, len);
        if (status)
-               return -EIO;
+               /* We failed to locate the PBA, so just skip this entry */
+               dev_dbg(ice_pf_to_dev(pf), "Failed to read Product Board Assembly string, status %s\n",
+                       ice_stat_str(status));
 
        return 0;
 }