netdev - [PATCH net-next 07/11] bnxt_en: Add err

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Message-ID: <20250915030505.1803478-8-michael.chan@broadcom.com>
Date: Sun, 14 Sep 2025 20:05:01 -0700
From: Michael Chan <michael.chan@...adcom.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org,
	edumazet@...gle.com,
	kuba@...nel.org,
	pabeni@...hat.com,
	andrew+netdev@...n.ch,
	pavan.chebbi@...adcom.com,
	andrew.gospodarek@...adcom.com,
	Kashyap Desai <kashyap.desai@...adcom.com>,
	Shruti Parab <shruti.parab@...adcom.com>
Subject: [PATCH net-next 07/11] bnxt_en: Add err_qpc backing store handling

From: Kashyap Desai <kashyap.desai@...adcom.com>

New backing store component err_qpc is added to the existing host
logging interface for FW traces.

Allocate the backing store memory if this memory type is supported.
Copy this memory when collecting the coredump.

Reviewed-by: Shruti Parab <shruti.parab@...adcom.com>
Signed-off-by: Kashyap Desai <kashyap.desai@...adcom.com>
Signed-off-by: Michael Chan <michael.chan@...adcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c          | 3 ++-
 drivers/net/ethernet/broadcom/bnxt/bnxt.h          | 3 ++-
 drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.c | 3 ++-
 drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.h | 1 +
 4 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 97165624acf5..dba3966c1ebd 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -266,6 +266,7 @@ const u16 bnxt_bstore_to_trace[] = {
 	[BNXT_CTX_CA2]		= DBG_LOG_BUFFER_FLUSH_REQ_TYPE_CA2_TRACE,
 	[BNXT_CTX_RIGP1]	= DBG_LOG_BUFFER_FLUSH_REQ_TYPE_RIGP1_TRACE,
 	[BNXT_CTX_KONG]		= DBG_LOG_BUFFER_FLUSH_REQ_TYPE_AFM_KONG_HWRM_TRACE,
+	[BNXT_CTX_QPC]		= DBG_LOG_BUFFER_FLUSH_REQ_TYPE_ERR_QPC_TRACE,
 };
 
 static struct workqueue_struct *bnxt_pf_wq;
@@ -9159,7 +9160,7 @@ static int bnxt_backing_store_cfg_v2(struct bnxt *bp)
 	int rc = 0;
 	u16 type;
 
-	for (type = BNXT_CTX_SRT; type <= BNXT_CTX_KONG; type++) {
+	for (type = BNXT_CTX_SRT; type <= BNXT_CTX_QPC; type++) {
 		ctxm = &ctx->ctx_arr[type];
 		if (!bnxt_bs_trace_avail(bp, type))
 			continue;
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index 37c3f6507250..57a1af40cc19 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -1969,10 +1969,11 @@ struct bnxt_ctx_mem_type {
 #define BNXT_CTX_CA2	FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_CA2_TRACE
 #define BNXT_CTX_RIGP1	FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_RIGP1_TRACE
 #define BNXT_CTX_KONG	FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_AFM_KONG_HWRM_TRACE
+#define BNXT_CTX_QPC	FUNC_BACKING_STORE_QCAPS_V2_REQ_TYPE_ERR_QPC_TRACE
 
 #define BNXT_CTX_MAX	(BNXT_CTX_TIM + 1)
 #define BNXT_CTX_L2_MAX	(BNXT_CTX_FTQM + 1)
-#define BNXT_CTX_V2_MAX	(BNXT_CTX_KONG + 1)
+#define BNXT_CTX_V2_MAX (BNXT_CTX_QPC + 1)
 #define BNXT_CTX_INV	((u16)-1)
 
 struct bnxt_ctx_mem_info {
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.c
index a0a37216efb3..0181ab1f2dfd 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.c
@@ -37,6 +37,7 @@ static const u16 bnxt_bstore_to_seg_id[] = {
 	[BNXT_CTX_CA2]			= BNXT_CTX_MEM_SEG_CA2,
 	[BNXT_CTX_RIGP1]		= BNXT_CTX_MEM_SEG_RIGP1,
 	[BNXT_CTX_KONG]			= BNXT_CTX_MEM_SEG_KONG,
+	[BNXT_CTX_QPC]			= BNXT_CTX_MEM_SEG_QPC,
 };
 
 static int bnxt_dbg_hwrm_log_buffer_flush(struct bnxt *bp, u16 type, u32 flags,
@@ -360,7 +361,7 @@ static u32 bnxt_get_ctx_coredump(struct bnxt *bp, void *buf, u32 offset,
 
 	if (buf)
 		buf += offset;
-	for (type = 0; type <= BNXT_CTX_KONG; type++) {
+	for (type = 0; type < BNXT_CTX_V2_MAX; type++) {
 		struct bnxt_ctx_mem_type *ctxm = &ctx->ctx_arr[type];
 		bool trace = bnxt_bs_trace_avail(bp, type);
 		u32 seg_id = bnxt_bstore_to_seg_id[type];
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.h b/drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.h
index 8d0f58c74cc3..c087df88154a 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_coredump.h
@@ -102,6 +102,7 @@ struct bnxt_driver_segment_record {
 #define BNXT_CTX_MEM_SEG_CA1	0x9
 #define BNXT_CTX_MEM_SEG_CA2	0xa
 #define BNXT_CTX_MEM_SEG_RIGP1	0xb
+#define BNXT_CTX_MEM_SEG_QPC	0xc
 #define BNXT_CTX_MEM_SEG_KONG	0xd
 
 #define BNXT_CRASH_DUMP_LEN	(8 << 20)
-- 
2.51.0