[PATCH net-next] cxgb4: add error handlers to LE intr_handler

[PATCH net-next] cxgb4: add error handlers to LE intr_handler

[Raju Rangoju]

cxgb4 does not look for HASHTBLMEMCRCERR and CMDTIDERR
bits in LE_DB_INT_CAUSE register, but these are enabled
in LE_DB_INT_ENABLE. So, add error handlers to LE
interrupt handler to emit a warning or alert message
for hash table mem crc and cmd tid errors

Signed-off-by: Raju Rangoju <rajur@chelsio.com>
---
 drivers/net/ethernet/chelsio/cxgb4/t4_hw.c   | 2 ++
 drivers/net/ethernet/chelsio/cxgb4/t4_regs.h | 8 ++++++++
 2 files changed, 10 insertions(+)

diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index 8a56491bb034..e49370f9d59b 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -4745,9 +4745,11 @@ static void le_intr_handler(struct adapter *adap)
 	static struct intr_info t6_le_intr_info[] = {
 		{ T6_LIPMISS_F, "LE LIP miss", -1, 0 },
 		{ T6_LIP0_F, "LE 0 LIP error", -1, 0 },
+		{ CMDTIDERR_F, "LE cmd tid error", -1, 1 },
 		{ TCAMINTPERR_F, "LE parity error", -1, 1 },
 		{ T6_UNKNOWNCMD_F, "LE unknown command", -1, 1 },
 		{ SSRAMINTPERR_F, "LE request queue parity error", -1, 1 },
+		{ HASHTBLMEMCRCERR_F, "LE hash table mem crc error", -1, 0 },
 		{ 0 }
 	};
 
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
index 065c01c654ff..b11a172b5174 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
@@ -3017,6 +3017,14 @@
 #define REV_V(x) ((x) << REV_S)
 #define REV_G(x) (((x) >> REV_S) & REV_M)
 
+#define HASHTBLMEMCRCERR_S    27
+#define HASHTBLMEMCRCERR_V(x) ((x) << HASHTBLMEMCRCERR_S)
+#define HASHTBLMEMCRCERR_F    HASHTBLMEMCRCERR_V(1U)
+
+#define CMDTIDERR_S    22
+#define CMDTIDERR_V(x) ((x) << CMDTIDERR_S)
+#define CMDTIDERR_F    CMDTIDERR_V(1U)
+
 #define T6_UNKNOWNCMD_S    3
 #define T6_UNKNOWNCMD_V(x) ((x) << T6_UNKNOWNCMD_S)
 #define T6_UNKNOWNCMD_F    T6_UNKNOWNCMD_V(1U)
-- 
2.9.5

Re: [PATCH net-next] cxgb4: add error handlers to LE intr_handler

[David Miller]

From: Raju Rangoju <rajur@chelsio.com>
Date: Tue, 25 Aug 2020 09:25:46 +0530

> cxgb4 does not look for HASHTBLMEMCRCERR and CMDTIDERR
> bits in LE_DB_INT_CAUSE register, but these are enabled
> in LE_DB_INT_ENABLE. So, add error handlers to LE
> interrupt handler to emit a warning or alert message
> for hash table mem crc and cmd tid errors
> 
> Signed-off-by: Raju Rangoju <rajur@chelsio.com>

Applied, thanks.