netdev - [PATCH net-next 02/15] bnxt_en: Define macros for the various health register states.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1611558501-11022-3-git-send-email-michael.chan@broadcom.com>
Date:   Mon, 25 Jan 2021 02:08:08 -0500
From:   Michael Chan <michael.chan@...adcom.com>
To:     davem@...emloft.net
Cc:     netdev@...r.kernel.org, kuba@...nel.org, gospo@...adcom.com
Subject: [PATCH net-next 02/15] bnxt_en: Define macros for the various health register states.

Define macros to check for the various states in the lower 16 bits of
the health register.  Replace the C code that checks for these values
with the newly defined macros.

Reviewed-by: Edwin Peer <edwin.peer@...adcom.com>
Signed-off-by: Michael Chan <michael.chan@...adcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.h         | 10 ++++++++++
 drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c |  7 +++----
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index d68065367cf2..a1dd80a0fcf6 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -1534,9 +1534,19 @@ struct bnxt_fw_reporter_ctx {
 #define BNXT_FW_HEALTH_WIN_OFF(reg)	(BNXT_FW_HEALTH_WIN_BASE +	\
 					 ((reg) & BNXT_GRC_OFFSET_MASK))
 
+#define BNXT_FW_STATUS_HEALTH_MSK	0xffff
 #define BNXT_FW_STATUS_HEALTHY		0x8000
 #define BNXT_FW_STATUS_SHUTDOWN		0x100000
 
+#define BNXT_FW_IS_HEALTHY(sts)		(((sts) & BNXT_FW_STATUS_HEALTH_MSK) ==\
+					 BNXT_FW_STATUS_HEALTHY)
+
+#define BNXT_FW_IS_BOOTING(sts)		(((sts) & BNXT_FW_STATUS_HEALTH_MSK) < \
+					 BNXT_FW_STATUS_HEALTHY)
+
+#define BNXT_FW_IS_ERR(sts)		(((sts) & BNXT_FW_STATUS_HEALTH_MSK) > \
+					 BNXT_FW_STATUS_HEALTHY)
+
 struct bnxt {
 	void __iomem		*bar0;
 	void __iomem		*bar1;
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
index 6b7b69ed62db..90a31b4a3020 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_devlink.c
@@ -44,21 +44,20 @@ static int bnxt_fw_reporter_diagnose(struct devlink_health_reporter *reporter,
 				     struct netlink_ext_ack *extack)
 {
 	struct bnxt *bp = devlink_health_reporter_priv(reporter);
-	u32 val, health_status;
+	u32 val;
 	int rc;
 
 	if (test_bit(BNXT_STATE_IN_FW_RESET, &bp->state))
 		return 0;
 
 	val = bnxt_fw_health_readl(bp, BNXT_FW_HEALTH_REG);
-	health_status = val & 0xffff;
 
-	if (health_status < BNXT_FW_STATUS_HEALTHY) {
+	if (BNXT_FW_IS_BOOTING(val)) {
 		rc = devlink_fmsg_string_pair_put(fmsg, "Description",
 						  "Not yet completed initialization");
 		if (rc)
 			return rc;
-	} else if (health_status > BNXT_FW_STATUS_HEALTHY) {
+	} else if (BNXT_FW_IS_ERR(val)) {
 		rc = devlink_fmsg_string_pair_put(fmsg, "Description",
 						  "Encountered fatal error and cannot recover");
 		if (rc)
-- 
2.18.1