Thread (10 messages) flat view 10 messages, 2 authors, 2025-09-24

Re: [PATCH net-next v13 5/5] net: rnpgbe: Add register_netdev

From: Jakub Kicinski <kuba@kernel.org>
Date: 2025-09-24 01:16:41
Also in: linux-doc, linux-hardening, lkml

On Mon, 22 Sep 2025 09:41:11 +0800 Dong Yibo wrote:
+static const struct mucse_hw_operations rnpgbe_hw_ops = {
+	.reset_hw = rnpgbe_reset,
+	.get_perm_mac = rnpgbe_get_permanent_mac,
+	.mbx_send_notify = rnpgbe_mbx_send_notify,
Please don't add abstraction layers, you only have one set of ops right
now call them directly. The abstractions layers make the code harder to
follow.
+static netdev_tx_t rnpgbe_xmit_frame(struct sk_buff *skb,
+				     struct net_device *netdev)
+{
+	dev_kfree_skb_any(skb);
+	netdev->stats.tx_dropped++;
Please add your own stats, the stats in struct net_device
are deprecated and should not be used by new drivers.
 	err = rnpgbe_init_hw(hw, board_type);
 	if (err) {
 		dev_err(&pdev->dev, "Init hw err %d\n", err);
 		goto err_free_net;
 	}
+	/* Step 1: Send power-up notification to firmware (no response expected)
+	 * This informs firmware to initialize hardware power state, but
+	 * firmware only acknowledges receipt without returning data. Must be
+	 * done before synchronization as firmware may be in low-power idle
+	 * state initially.
+	 */
+	err = hw->ops->mbx_send_notify(hw, true, mucse_fw_powerup);
+	if (err) {
Don't you have to power it down on errors later in this function?
-- 
pw-bot: cr
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