Re: [PATCH net] net: enetc: safely reinitialize TX BD ring when it has unsent frames
From: Frank Li <Frank.Li@nxp.com>
Date: 2026-03-06 16:49:18
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From: Frank Li (AI-BOT) <frank.li@nxp.com>
quoted hunk ↗ jump to hunk
diff --git a/drivers/net/ethernet/freescale/enetc/enetc4_hw.h b/drivers/net/ethernet/freescale/enetc/enetc4_hw.h index 3ed0f7a02767..1ce6551e186c 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc4_hw.h +++ b/drivers/net/ethernet/freescale/enetc/enetc4_hw.h@@ -134,6 +134,12 @@ /* Port operational register */ #define ENETC4_POR 0x4100 +#define POR_TXDIS BIT(0) +#define POR_RXDIS BIT(1) + +/* Port status register */ +#define ENETC4_PSR 0x4100 +#define PSR_RX_BUSY BIT(1)
AI: ENETC4_PSR and ENETC4_POR both defined as 0x4100. Likely a typo; check the hardware spec for the correct offset of ENETC4_PSR.
+ while (!(enetc_port_rd(&si->hw, ENETC4_PM_IEVENT(mac)) &
+ PM_IEVENT_RX_EMPTY)) {
+ if (timeout >= 100) {
+ dev_warn(&si->pdev->dev,
+ "MAC %d RX is not empty\n", mac);
+ break;
+ };AI: Stray semicolon after closing brace; remove it. Frank