diff mbox series

[net-next,6/6] bnxt_en: check and resize NVRAM UPDATE entry before flashing

Message ID 1664326724-1415-7-git-send-email-michael.chan@broadcom.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series bnxt_en: Driver updates | expand

Checks

Context Check Description
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers success CCed 5 of 5 maintainers
netdev/build_clang success Errors and warnings before: 0 this patch: 0
netdev/module_param success Was 0 now: 0
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 0 this patch: 0
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 50 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Michael Chan Sept. 28, 2022, 12:58 a.m. UTC
From: Vikas Gupta <vikas.gupta@broadcom.com>

Resize of the UPDATE entry is required if the image to
be flashed is larger than the available space. Add this step,
otherwise flashing larger firmware images by ethtool or devlink
may fail.

Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Signed-off-by: Vikas Gupta <vikas.gupta@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
---
 .../net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
index 2b18af95aacb..2f97f41408e7 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
@@ -2514,6 +2514,7 @@  static int bnxt_flash_firmware_from_file(struct net_device *dev,
 #define MSG_INTERNAL_ERR "PKG install error : Internal error"
 #define MSG_NO_PKG_UPDATE_AREA_ERR "PKG update area not created in nvram"
 #define MSG_NO_SPACE_ERR "PKG insufficient update area in nvram"
+#define MSG_RESIZE_UPDATE_ERR "Resize UPDATE entry error"
 #define MSG_ANTI_ROLLBACK_ERR "HWRM_NVM_INSTALL_UPDATE failure due to Anti-rollback detected"
 #define MSG_GENERIC_FAILURE_ERR "HWRM_NVM_INSTALL_UPDATE failure"
 
@@ -2564,6 +2565,32 @@  static int nvm_update_err_to_stderr(struct net_device *dev, u8 result,
 #define BNXT_NVM_MORE_FLAG	(cpu_to_le16(NVM_MODIFY_REQ_FLAGS_BATCH_MODE))
 #define BNXT_NVM_LAST_FLAG	(cpu_to_le16(NVM_MODIFY_REQ_FLAGS_BATCH_LAST))
 
+static int bnxt_resize_update_entry(struct net_device *dev, size_t fw_size,
+				    struct netlink_ext_ack *extack)
+{
+	u32 item_len;
+	int rc;
+
+	rc = bnxt_find_nvram_item(dev, BNX_DIR_TYPE_UPDATE,
+				  BNX_DIR_ORDINAL_FIRST, BNX_DIR_EXT_NONE, NULL,
+				  &item_len, NULL);
+	if (rc) {
+		BNXT_NVM_ERR_MSG(dev, extack, MSG_NO_PKG_UPDATE_AREA_ERR);
+		return rc;
+	}
+
+	if (fw_size > item_len) {
+		rc = bnxt_flash_nvram(dev, BNX_DIR_TYPE_UPDATE,
+				      BNX_DIR_ORDINAL_FIRST, 0, 1,
+				      round_up(fw_size, 4096), NULL, 0);
+		if (rc) {
+			BNXT_NVM_ERR_MSG(dev, extack, MSG_RESIZE_UPDATE_ERR);
+			return rc;
+		}
+	}
+	return 0;
+}
+
 int bnxt_flash_package_from_fw_obj(struct net_device *dev, const struct firmware *fw,
 				   u32 install_type, struct netlink_ext_ack *extack)
 {
@@ -2580,6 +2607,11 @@  int bnxt_flash_package_from_fw_obj(struct net_device *dev, const struct firmware
 	u16 index;
 	int rc;
 
+	/* resize before flashing larger image than available space */
+	rc = bnxt_resize_update_entry(dev, fw->size, extack);
+	if (rc)
+		return rc;
+
 	bnxt_hwrm_fw_set_time(bp);
 
 	rc = hwrm_req_init(bp, modify, HWRM_NVM_MODIFY);