netdev - [PATCH ethtool-next 3/8] cmis: Initialize Page 02h in memory map

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Message-Id: <20211123174102.3242294-4-idosch@idosch.org>
Date:   Tue, 23 Nov 2021 19:40:57 +0200
From:   Ido Schimmel <idosch@...sch.org>
To:     netdev@...r.kernel.org
Cc:     mkubecek@...e.cz, popadrian1996@...il.com, andrew@...n.ch,
        mlxsw@...dia.com, moshe@...dia.com,
        Ido Schimmel <idosch@...dia.com>
Subject: [PATCH ethtool-next 3/8] cmis: Initialize Page 02h in memory map

From: Ido Schimmel <idosch@...dia.com>

Page 02h stores module and lane thresholds that are going to be parsed
and displayed in subsequent patches.

Request it via the 'MODULE_EEPROM_GET' netlink message and initialize it
in the memory map.

Signed-off-by: Ido Schimmel <idosch@...dia.com>
---
 cmis.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/cmis.c b/cmis.c
index 4798fd4c7d68..55b9d1b959cd 100644
--- a/cmis.c
+++ b/cmis.c
@@ -17,9 +17,10 @@
 
 struct cmis_memory_map {
 	const __u8 *lower_memory;
-	const __u8 *upper_memory[1][2];	/* Bank, Page */
+	const __u8 *upper_memory[1][3];	/* Bank, Page */
 #define page_00h upper_memory[0x0][0x0]
 #define page_01h upper_memory[0x0][0x1]
+#define page_02h upper_memory[0x0][0x2]
 };
 
 #define CMIS_PAGE_SIZE		0x80
@@ -423,8 +424,8 @@ cmis_memory_map_init_pages(struct cmd_context *ctx,
 		return ret;
 	map->page_00h = request.data - CMIS_PAGE_SIZE;
 
-	/* Page 01h is only present when the module memory model is paged and
-	 * not flat.
+	/* Pages 01h and 02h are only present when the module memory model is
+	 * paged and not flat.
 	 */
 	if (map->lower_memory[CMIS_MEMORY_MODEL_OFFSET] &
 	    CMIS_MEMORY_MODEL_MASK)
@@ -436,6 +437,12 @@ cmis_memory_map_init_pages(struct cmd_context *ctx,
 		return ret;
 	map->page_01h = request.data - CMIS_PAGE_SIZE;
 
+	cmis_request_init(&request, 0, 0x2, CMIS_PAGE_SIZE);
+	ret = nl_get_eeprom_page(ctx, &request);
+	if (ret < 0)
+		return ret;
+	map->page_02h = request.data - CMIS_PAGE_SIZE;
+
 	return 0;
 }
 
-- 
2.31.1