asm/mach-bcm63xx/bcm63xx_iudma.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 #ifndef BCM63XX_IUDMA_H_
0003 #define BCM63XX_IUDMA_H_
0004
0005 #include <linux/types.h>
0006
0007 /*
0008  * rx/tx dma descriptor
0009  */
0010 struct bcm_enet_desc {
0011     u32 len_stat;
0012     u32 address;
0013 };
0014
0015 /* control */
0016 #define DMADESC_LENGTH_SHIFT    16
0017 #define DMADESC_LENGTH_MASK (0xfff << DMADESC_LENGTH_SHIFT)
0018 #define DMADESC_OWNER_MASK  (1 << 15)
0019 #define DMADESC_EOP_MASK    (1 << 14)
0020 #define DMADESC_SOP_MASK    (1 << 13)
0021 #define DMADESC_ESOP_MASK   (DMADESC_EOP_MASK | DMADESC_SOP_MASK)
0022 #define DMADESC_WRAP_MASK   (1 << 12)
0023 #define DMADESC_USB_NOZERO_MASK (1 << 1)
0024 #define DMADESC_USB_ZERO_MASK   (1 << 0)
0025
0026 /* status */
0027 #define DMADESC_UNDER_MASK  (1 << 9)
0028 #define DMADESC_APPEND_CRC  (1 << 8)
0029 #define DMADESC_OVSIZE_MASK (1 << 4)
0030 #define DMADESC_RXER_MASK   (1 << 2)
0031 #define DMADESC_CRC_MASK    (1 << 1)
0032 #define DMADESC_OV_MASK     (1 << 0)
0033 #define DMADESC_ERR_MASK    (DMADESC_UNDER_MASK | \
0034                 DMADESC_OVSIZE_MASK | \
0035                 DMADESC_RXER_MASK | \
0036                 DMADESC_CRC_MASK | \
0037                 DMADESC_OV_MASK)
0038
0039 #endif /* ! BCM63XX_IUDMA_H_ */