iwlwifi: support Signed firmware image and Dual CPUs

Support Signed firmware based on code signing system (CSS)
protocol and dual CPUs download,
the code recognize if there are more than one CPU and
if we need to operate the signed protocol according to
the ucode binary image

Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

1 files changed, 37 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.c b/drivers/net/wireless/iwlwifi/iwl-drv.c
index 99e1da3123c9..ff570027e9dd 100644
--- a/drivers/net/wireless/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/iwlwifi/iwl-drv.c
@@ -483,6 +483,7 @@ static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
         const u8 *tlv_data;
         char buildstr[25];
         u32 build;
+        int num_of_cpus;
 
         if (len < sizeof(*ucode)) {
                 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
@@ -692,6 +693,42 @@ static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
                                 goto invalid_tlv_len;
                         drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
                         break;
+                 case IWL_UCODE_TLV_SECURE_SEC_RT:
+                        iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
+                                            tlv_len);
+                        drv->fw.mvm_fw = true;
+                        drv->fw.img[IWL_UCODE_REGULAR].is_secure = true;
+                        break;
+                case IWL_UCODE_TLV_SECURE_SEC_INIT:
+                        iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
+                                            tlv_len);
+                        drv->fw.mvm_fw = true;
+                        drv->fw.img[IWL_UCODE_INIT].is_secure = true;
+                        break;
+                case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
+                        iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
+                                            tlv_len);
+                        drv->fw.mvm_fw = true;
+                        drv->fw.img[IWL_UCODE_WOWLAN].is_secure = true;
+                        break;
+                case IWL_UCODE_TLV_NUM_OF_CPU:
+                        if (tlv_len != sizeof(u32))
+                                goto invalid_tlv_len;
+                        num_of_cpus =
+                                le32_to_cpup((__le32 *)tlv_data);
+
+                        if (num_of_cpus == 2) {
+                                drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
+                                        true;
+                                drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
+                                        true;
+                                drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
+                                        true;
+                        } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
+                                IWL_ERR(drv, "Driver support upto 2 CPUs\n");
+                                return -EINVAL;
+                        }
+                        break;
                 default:
                         IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
                         break;