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From:   Rakesh Babu <rsaladi2@marvell.com>
To:     <davem@davemloft.net>, <kuba@kernel.org>, <netdev@vger.kernel.org>,
        <linux-kernel@vger.kernel.org>, <sgoutham@marvell.com>,
        <gakula@marvell.com>, <sbhatta@marvell.com>, <hkelam@marvell.com>
CC:     Rakesh Babu <rsaladi2@marvell.com>
Subject: [net PATCH 1/2] octeontx2-af: Check whether ipolicers exists
Date:   Tue, 26 Oct 2021 00:30:44 +0530
Message-ID: <20211025190045.7462-2-rsaladi2@marvell.com>
In-Reply-To: <20211025190045.7462-1-rsaladi2@marvell.com>
References: <20211025190045.7462-1-rsaladi2@marvell.com>
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From: Subbaraya Sundeep <sbhatta@marvell.com>

While displaying ingress policers information in
debugfs check whether ingress policers exist in
the hardware or not because some platforms(CN9XXX)
do not have this feature.

Fixes: e7d8971763f3 ("octeontx2-af: cn10k: Debugfs support for bandwidth")
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
Signed-off-by: Rakesh Babu <rsaladi2@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
---
 drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
index 9338765da048..6c589ca9b577 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_debugfs.c
@@ -1719,6 +1719,10 @@ static int rvu_dbg_nix_band_prof_ctx_display(struct seq_file *m, void *unused)
 	u16 pcifunc;
 	char *str;

+	/* Ingress policers do not exist on all platforms */
+	if (!nix_hw->ipolicer)
+		return 0;
+
 	for (layer = 0; layer < BAND_PROF_NUM_LAYERS; layer++) {
 		if (layer == BAND_PROF_INVAL_LAYER)
 			continue;
@@ -1768,6 +1772,10 @@ static int rvu_dbg_nix_band_prof_rsrc_display(struct seq_file *m, void *unused)
 	int layer;
 	char *str;

+	/* Ingress policers do not exist on all platforms */
+	if (!nix_hw->ipolicer)
+		return 0;
+
 	seq_puts(m, "\nBandwidth profile resource free count\n");
 	seq_puts(m, "=====================================\n");
 	for (layer = 0; layer < BAND_PROF_NUM_LAYERS; layer++) {
--
2.17.1