bcm63xx_iudma.h (1004B)
1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef BCM63XX_IUDMA_H_ 3#define BCM63XX_IUDMA_H_ 4 5#include <linux/types.h> 6 7/* 8 * rx/tx dma descriptor 9 */ 10struct bcm_enet_desc { 11 u32 len_stat; 12 u32 address; 13}; 14 15/* control */ 16#define DMADESC_LENGTH_SHIFT 16 17#define DMADESC_LENGTH_MASK (0xfff << DMADESC_LENGTH_SHIFT) 18#define DMADESC_OWNER_MASK (1 << 15) 19#define DMADESC_EOP_MASK (1 << 14) 20#define DMADESC_SOP_MASK (1 << 13) 21#define DMADESC_ESOP_MASK (DMADESC_EOP_MASK | DMADESC_SOP_MASK) 22#define DMADESC_WRAP_MASK (1 << 12) 23#define DMADESC_USB_NOZERO_MASK (1 << 1) 24#define DMADESC_USB_ZERO_MASK (1 << 0) 25 26/* status */ 27#define DMADESC_UNDER_MASK (1 << 9) 28#define DMADESC_APPEND_CRC (1 << 8) 29#define DMADESC_OVSIZE_MASK (1 << 4) 30#define DMADESC_RXER_MASK (1 << 2) 31#define DMADESC_CRC_MASK (1 << 1) 32#define DMADESC_OV_MASK (1 << 0) 33#define DMADESC_ERR_MASK (DMADESC_UNDER_MASK | \ 34 DMADESC_OVSIZE_MASK | \ 35 DMADESC_RXER_MASK | \ 36 DMADESC_CRC_MASK | \ 37 DMADESC_OV_MASK) 38 39#endif /* ! BCM63XX_IUDMA_H_ */