| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /******************************************************************************* |
| Header File to describe the DMA descriptors and related definitions. |
| This is for DWMAC100 and 1000 cores. |
| |
| |
| Author: Giuseppe Cavallaro <peppe.cavallaro@st.com> |
| *******************************************************************************/ |
| |
| #ifndef __DESCS_H__ |
| #define __DESCS_H__ |
| |
| #include <linux/bitops.h> |
| |
| /* Normal receive descriptor defines */ |
| |
| /* RDES0 */ |
| #define RDES0_PAYLOAD_CSUM_ERR BIT(0) |
| #define RDES0_CRC_ERROR BIT(1) |
| #define RDES0_DRIBBLING BIT(2) |
| #define RDES0_MII_ERROR BIT(3) |
| #define RDES0_RECEIVE_WATCHDOG BIT(4) |
| #define RDES0_FRAME_TYPE BIT(5) |
| #define RDES0_COLLISION BIT(6) |
| #define RDES0_IPC_CSUM_ERROR BIT(7) |
| #define RDES0_LAST_DESCRIPTOR BIT(8) |
| #define RDES0_FIRST_DESCRIPTOR BIT(9) |
| #define RDES0_VLAN_TAG BIT(10) |
| #define RDES0_OVERFLOW_ERROR BIT(11) |
| #define RDES0_LENGTH_ERROR BIT(12) |
| #define RDES0_SA_FILTER_FAIL BIT(13) |
| #define RDES0_DESCRIPTOR_ERROR BIT(14) |
| #define RDES0_ERROR_SUMMARY BIT(15) |
| #define RDES0_FRAME_LEN_MASK GENMASK(29, 16) |
| #define RDES0_FRAME_LEN_SHIFT 16 |
| #define RDES0_DA_FILTER_FAIL BIT(30) |
| #define RDES0_OWN BIT(31) |
| /* RDES1 */ |
| #define RDES1_BUFFER1_SIZE_MASK GENMASK(10, 0) |
| #define RDES1_BUFFER2_SIZE_MASK GENMASK(21, 11) |
| #define RDES1_BUFFER2_SIZE_SHIFT 11 |
| #define RDES1_SECOND_ADDRESS_CHAINED BIT(24) |
| #define RDES1_END_RING BIT(25) |
| #define RDES1_DISABLE_IC BIT(31) |
| |
| /* Enhanced receive descriptor defines */ |
| |
| /* RDES0 (similar to normal RDES) */ |
| #define ERDES0_RX_MAC_ADDR BIT(0) |
| |
| /* RDES1: completely differ from normal desc definitions */ |
| #define ERDES1_BUFFER1_SIZE_MASK GENMASK(12, 0) |
| #define ERDES1_SECOND_ADDRESS_CHAINED BIT(14) |
| #define ERDES1_END_RING BIT(15) |
| #define ERDES1_BUFFER2_SIZE_MASK GENMASK(28, 16) |
| #define ERDES1_BUFFER2_SIZE_SHIFT 16 |
| #define ERDES1_DISABLE_IC BIT(31) |
| |
| /* Normal transmit descriptor defines */ |
| /* TDES0 */ |
| #define TDES0_DEFERRED BIT(0) |
| #define TDES0_UNDERFLOW_ERROR BIT(1) |
| #define TDES0_EXCESSIVE_DEFERRAL BIT(2) |
| #define TDES0_COLLISION_COUNT_MASK GENMASK(6, 3) |
| #define TDES0_VLAN_FRAME BIT(7) |
| #define TDES0_EXCESSIVE_COLLISIONS BIT(8) |
| #define TDES0_LATE_COLLISION BIT(9) |
| #define TDES0_NO_CARRIER BIT(10) |
| #define TDES0_LOSS_CARRIER BIT(11) |
| #define TDES0_PAYLOAD_ERROR BIT(12) |
| #define TDES0_FRAME_FLUSHED BIT(13) |
| #define TDES0_JABBER_TIMEOUT BIT(14) |
| #define TDES0_ERROR_SUMMARY BIT(15) |
| #define TDES0_IP_HEADER_ERROR BIT(16) |
| #define TDES0_TIME_STAMP_STATUS BIT(17) |
| #define TDES0_OWN ((u32)BIT(31)) /* silence sparse */ |
| /* TDES1 */ |
| #define TDES1_BUFFER1_SIZE_MASK GENMASK(10, 0) |
| #define TDES1_BUFFER2_SIZE_MASK GENMASK(21, 11) |
| #define TDES1_BUFFER2_SIZE_SHIFT 11 |
| #define TDES1_TIME_STAMP_ENABLE BIT(22) |
| #define TDES1_DISABLE_PADDING BIT(23) |
| #define TDES1_SECOND_ADDRESS_CHAINED BIT(24) |
| #define TDES1_END_RING BIT(25) |
| #define TDES1_CRC_DISABLE BIT(26) |
| #define TDES1_CHECKSUM_INSERTION_MASK GENMASK(28, 27) |
| #define TDES1_CHECKSUM_INSERTION_SHIFT 27 |
| #define TDES1_FIRST_SEGMENT BIT(29) |
| #define TDES1_LAST_SEGMENT BIT(30) |
| #define TDES1_INTERRUPT BIT(31) |
| |
| /* Enhanced transmit descriptor defines */ |
| /* TDES0 */ |
| #define ETDES0_DEFERRED BIT(0) |
| #define ETDES0_UNDERFLOW_ERROR BIT(1) |
| #define ETDES0_EXCESSIVE_DEFERRAL BIT(2) |
| #define ETDES0_COLLISION_COUNT_MASK GENMASK(6, 3) |
| #define ETDES0_VLAN_FRAME BIT(7) |
| #define ETDES0_EXCESSIVE_COLLISIONS BIT(8) |
| #define ETDES0_LATE_COLLISION BIT(9) |
| #define ETDES0_NO_CARRIER BIT(10) |
| #define ETDES0_LOSS_CARRIER BIT(11) |
| #define ETDES0_PAYLOAD_ERROR BIT(12) |
| #define ETDES0_FRAME_FLUSHED BIT(13) |
| #define ETDES0_JABBER_TIMEOUT BIT(14) |
| #define ETDES0_ERROR_SUMMARY BIT(15) |
| #define ETDES0_IP_HEADER_ERROR BIT(16) |
| #define ETDES0_TIME_STAMP_STATUS BIT(17) |
| #define ETDES0_SECOND_ADDRESS_CHAINED BIT(20) |
| #define ETDES0_END_RING BIT(21) |
| #define ETDES0_CHECKSUM_INSERTION_MASK GENMASK(23, 22) |
| #define ETDES0_CHECKSUM_INSERTION_SHIFT 22 |
| #define ETDES0_TIME_STAMP_ENABLE BIT(25) |
| #define ETDES0_DISABLE_PADDING BIT(26) |
| #define ETDES0_CRC_DISABLE BIT(27) |
| #define ETDES0_FIRST_SEGMENT BIT(28) |
| #define ETDES0_LAST_SEGMENT BIT(29) |
| #define ETDES0_INTERRUPT BIT(30) |
| #define ETDES0_OWN ((u32)BIT(31)) /* silence sparse */ |
| /* TDES1 */ |
| #define ETDES1_BUFFER1_SIZE_MASK GENMASK(12, 0) |
| #define ETDES1_BUFFER2_SIZE_MASK GENMASK(28, 16) |
| #define ETDES1_BUFFER2_SIZE_SHIFT 16 |
| |
| /* Extended Receive descriptor definitions */ |
| #define ERDES4_IP_PAYLOAD_TYPE_MASK GENMASK(6, 2) |
| #define ERDES4_IP_HDR_ERR BIT(3) |
| #define ERDES4_IP_PAYLOAD_ERR BIT(4) |
| #define ERDES4_IP_CSUM_BYPASSED BIT(5) |
| #define ERDES4_IPV4_PKT_RCVD BIT(6) |
| #define ERDES4_IPV6_PKT_RCVD BIT(7) |
| #define ERDES4_MSG_TYPE_MASK GENMASK(11, 8) |
| #define ERDES4_PTP_FRAME_TYPE BIT(12) |
| #define ERDES4_PTP_VER BIT(13) |
| #define ERDES4_TIMESTAMP_DROPPED BIT(14) |
| #define ERDES4_AV_PKT_RCVD BIT(16) |
| #define ERDES4_AV_TAGGED_PKT_RCVD BIT(17) |
| #define ERDES4_VLAN_TAG_PRI_VAL_MASK GENMASK(20, 18) |
| #define ERDES4_L3_FILTER_MATCH BIT(24) |
| #define ERDES4_L4_FILTER_MATCH BIT(25) |
| #define ERDES4_L3_L4_FILT_NO_MATCH_MASK GENMASK(27, 26) |
| |
| /* Extended RDES4 message type definitions */ |
| #define RDES_EXT_NO_PTP 0x0 |
| #define RDES_EXT_SYNC 0x1 |
| #define RDES_EXT_FOLLOW_UP 0x2 |
| #define RDES_EXT_DELAY_REQ 0x3 |
| #define RDES_EXT_DELAY_RESP 0x4 |
| #define RDES_EXT_PDELAY_REQ 0x5 |
| #define RDES_EXT_PDELAY_RESP 0x6 |
| #define RDES_EXT_PDELAY_FOLLOW_UP 0x7 |
| #define RDES_PTP_ANNOUNCE 0x8 |
| #define RDES_PTP_MANAGEMENT 0x9 |
| #define RDES_PTP_SIGNALING 0xa |
| #define RDES_PTP_PKT_RESERVED_TYPE 0xf |
| |
| /* Basic descriptor structure for normal and alternate descriptors */ |
| struct dma_desc { |
| __le32 des0; |
| __le32 des1; |
| __le32 des2; |
| __le32 des3; |
| }; |
| |
| /* Extended descriptor structure (e.g. >= databook 3.50a) */ |
| struct dma_extended_desc { |
| struct dma_desc basic; /* Basic descriptors */ |
| __le32 des4; /* Extended Status */ |
| __le32 des5; /* Reserved */ |
| __le32 des6; /* Tx/Rx Timestamp Low */ |
| __le32 des7; /* Tx/Rx Timestamp High */ |
| }; |
| |
| /* Transmit checksum insertion control */ |
| #define TX_CIC_FULL 3 /* Include IP header and pseudoheader */ |
| |
| #endif /* __DESCS_H__ */ |
