diff options
Diffstat (limited to 'drivers/net/ethernet/intel/e100.c')
| -rw-r--r-- | drivers/net/ethernet/intel/e100.c | 40 |
1 files changed, 31 insertions, 9 deletions
diff --git a/drivers/net/ethernet/intel/e100.c b/drivers/net/ethernet/intel/e100.c index ada720b42ff..535f94fac4a 100644 --- a/drivers/net/ethernet/intel/e100.c +++ b/drivers/net/ethernet/intel/e100.c @@ -1249,20 +1249,35 @@ static const struct firmware *e100_request_firmware(struct nic *nic) const struct firmware *fw = nic->fw; u8 timer, bundle, min_size; int err = 0; + bool required = false; /* do not load u-code for ICH devices */ if (nic->flags & ich) return NULL; - /* Search for ucode match against h/w revision */ - if (nic->mac == mac_82559_D101M) + /* Search for ucode match against h/w revision + * + * Based on comments in the source code for the FreeBSD fxp + * driver, the FIRMWARE_D102E ucode includes both CPUSaver and + * + * "fixes for bugs in the B-step hardware (specifically, bugs + * with Inline Receive)." + * + * So we must fail if it cannot be loaded. + * + * The other microcode files are only required for the optional + * CPUSaver feature. Nice to have, but no reason to fail. + */ + if (nic->mac == mac_82559_D101M) { fw_name = FIRMWARE_D101M; - else if (nic->mac == mac_82559_D101S) + } else if (nic->mac == mac_82559_D101S) { fw_name = FIRMWARE_D101S; - else if (nic->mac == mac_82551_F || nic->mac == mac_82551_10) + } else if (nic->mac == mac_82551_F || nic->mac == mac_82551_10) { fw_name = FIRMWARE_D102E; - else /* No ucode on other devices */ + required = true; + } else { /* No ucode on other devices */ return NULL; + } /* If the firmware has not previously been loaded, request a pointer * to it. If it was previously loaded, we are reinitializing the @@ -1273,10 +1288,17 @@ static const struct firmware *e100_request_firmware(struct nic *nic) err = request_firmware(&fw, fw_name, &nic->pdev->dev); if (err) { - netif_err(nic, probe, nic->netdev, - "Failed to load firmware \"%s\": %d\n", - fw_name, err); - return ERR_PTR(err); + if (required) { + netif_err(nic, probe, nic->netdev, + "Failed to load firmware \"%s\": %d\n", + fw_name, err); + return ERR_PTR(err); + } else { + netif_info(nic, probe, nic->netdev, + "CPUSaver disabled. Needs \"%s\": %d\n", + fw_name, err); + return NULL; + } } /* Firmware should be precisely UCODE_SIZE (words) plus three bytes |