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From:   Roger Quadros <rogerq@kernel.org>
To:     davem@davemloft.net, kuba@kernel.org
Cc:     edumazet@google.com, pabeni@redhat.com, vigneshr@ti.com,
        linux-omap@vger.kernel.org, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org, Roger Quadros <rogerq@kernel.org>
Subject: [PATCH v2 4/4] net: ethernet: ti: cpsw_ale: optimize cpsw_ale_restore()
Date:   Mon, 21 Nov 2022 16:23:00 +0200
Message-Id: <20221121142300.9320-5-rogerq@kernel.org>
In-Reply-To: <20221121142300.9320-1-rogerq@kernel.org>
References: <20221121142300.9320-1-rogerq@kernel.org>
Precedence: bulk

If an entry was FREE then we don't have to restore it.
This will make the restore faster in most cases.

Signed-off-by: Roger Quadros <rogerq@kernel.org>
---
 drivers/net/ethernet/ti/cpsw_ale.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/ti/cpsw_ale.c b/drivers/net/ethernet/ti/cpsw_ale.c
index 0c5e783e574c..41bcf34a22f8 100644
--- a/drivers/net/ethernet/ti/cpsw_ale.c
+++ b/drivers/net/ethernet/ti/cpsw_ale.c
@@ -1452,12 +1452,15 @@ void cpsw_ale_dump(struct cpsw_ale *ale, u32 *data)
 	}
 }
 
+/* ALE table should be cleared (ALE_CLEAR) before cpsw_ale_restore() */
 void cpsw_ale_restore(struct cpsw_ale *ale, u32 *data)
 {
-	int i;
+	int i, type;
 
 	for (i = 0; i < ale->params.ale_entries; i++) {
-		cpsw_ale_write(ale, i, data);
+		type = cpsw_ale_get_entry_type(data);
+		if (type != ALE_TYPE_FREE)
+			cpsw_ale_write(ale, i, data);
 		data += ALE_ENTRY_WORDS;
 	}
 }
-- 
2.17.1