netdev - [PATCH net-next 04/11] bnxt_en: Add support for updating flash more securely

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Message-Id: <1467413189-29566-5-git-send-email-michael.chan@broadcom.com>
Date:	Fri,  1 Jul 2016 18:46:22 -0400
From:	Michael Chan <michael.chan@...adcom.com>
To:	davem@...emloft.net
Cc:	netdev@...r.kernel.org
Subject: [PATCH net-next 04/11] bnxt_en: Add support for updating flash more securely

From: Rob Swindell <rob.swindell@...adcom.com>

To support Secure Firmware Update, we must be able to allocate
a staging area in the Flash.  This patch adds support for the
"update" type to tell firmware to do that.

Signed-off-by: Rob Swindell <rob.swindell@...adcom.com>
Signed-off-by: Michael Chan <michael.chan@...adcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c  | 3 ++-
 drivers/net/ethernet/broadcom/bnxt/bnxt_nvm_defs.h | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index c63ed2f..3328aa5 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -1186,7 +1186,8 @@ static int bnxt_flash_firmware_from_file(struct net_device *dev,
 	const struct firmware  *fw;
 	int			rc;
 
-	if (bnxt_dir_type_is_executable(dir_type) == false)
+	if (dir_type != BNX_DIR_TYPE_UPDATE &&
+	    bnxt_dir_type_is_executable(dir_type) == false)
 		return -EINVAL;
 
 	rc = request_firmware(&fw, filename, &dev->dev);
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_nvm_defs.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_nvm_defs.h
index 40a7b0e..73f2249 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_nvm_defs.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_nvm_defs.h
@@ -13,6 +13,7 @@
 enum bnxt_nvm_directory_type {
 	BNX_DIR_TYPE_UNUSED = 0,
 	BNX_DIR_TYPE_PKG_LOG = 1,
+	BNX_DIR_TYPE_UPDATE = 2,
 	BNX_DIR_TYPE_CHIMP_PATCH = 3,
 	BNX_DIR_TYPE_BOOTCODE = 4,
 	BNX_DIR_TYPE_VPD = 5,
-- 
1.8.3.1