2 * Copyright (c) 2016 QLogic Corporation.
6 * See LICENSE.qede_pmd for copyright and licensing details.
13 #include "qede_ethdev.h"
15 /* Ring Descriptors */
16 #define RX_RING_SIZE_POW 16 /* 64K */
17 #define RX_RING_SIZE (1ULL << RX_RING_SIZE_POW)
18 #define NUM_RX_BDS_MAX (RX_RING_SIZE - 1)
19 #define NUM_RX_BDS_MIN 128
20 #define NUM_RX_BDS_DEF NUM_RX_BDS_MAX
21 #define NUM_RX_BDS(q) (q->nb_rx_desc - 1)
23 #define TX_RING_SIZE_POW 16 /* 64K */
24 #define TX_RING_SIZE (1ULL << TX_RING_SIZE_POW)
25 #define NUM_TX_BDS_MAX (TX_RING_SIZE - 1)
26 #define NUM_TX_BDS_MIN 128
27 #define NUM_TX_BDS_DEF NUM_TX_BDS_MAX
28 #define NUM_TX_BDS(q) (q->nb_tx_desc - 1)
30 #define TX_CONS(txq) (txq->sw_tx_cons & NUM_TX_BDS(txq))
31 #define TX_PROD(txq) (txq->sw_tx_prod & NUM_TX_BDS(txq))
33 /* Number of TX BDs per packet used currently */
34 #define MAX_NUM_TX_BDS 1
36 #define QEDE_DEFAULT_TX_FREE_THRESH 32
38 #define QEDE_CSUM_ERROR (1 << 0)
39 #define QEDE_CSUM_UNNECESSARY (1 << 1)
40 #define QEDE_TUNN_CSUM_UNNECESSARY (1 << 2)
42 #define QEDE_BD_SET_ADDR_LEN(bd, maddr, len) \
44 (bd)->addr.hi = rte_cpu_to_le_32(U64_HI(maddr)); \
45 (bd)->addr.lo = rte_cpu_to_le_32(U64_LO(maddr)); \
46 (bd)->nbytes = rte_cpu_to_le_16(len); \
47 /* FW 8.10.x specific change */ \
48 (bd)->data.bitfields = ((len) & \
49 ETH_TX_DATA_1ST_BD_PKT_LEN_MASK) \
50 << ETH_TX_DATA_1ST_BD_PKT_LEN_SHIFT; \
53 #define CQE_HAS_VLAN(flags) \
54 ((flags) & (PARSING_AND_ERR_FLAGS_TAG8021QEXIST_MASK \
55 << PARSING_AND_ERR_FLAGS_TAG8021QEXIST_SHIFT))
57 #define CQE_HAS_OUTER_VLAN(flags) \
58 ((flags) & (PARSING_AND_ERR_FLAGS_TUNNEL8021QTAGEXIST_MASK \
59 << PARSING_AND_ERR_FLAGS_TUNNEL8021QTAGEXIST_SHIFT))
61 /* Max supported alignment is 256 (8 shift)
62 * minimal alignment shift 6 is optimal for 57xxx HW performance
64 #define QEDE_L1_CACHE_SHIFT 6
65 #define QEDE_RX_ALIGN_SHIFT (RTE_MAX(6, RTE_MIN(8, QEDE_L1_CACHE_SHIFT)))
66 #define QEDE_FW_RX_ALIGN_END (1UL << QEDE_RX_ALIGN_SHIFT)
68 #define QEDE_ETH_OVERHEAD (ETHER_HDR_LEN + 8 + 8 + QEDE_FW_RX_ALIGN_END)
70 /* TBD: Excluding IPV6 */
71 #define QEDE_RSS_OFFLOAD_ALL (ETH_RSS_IPV4 | ETH_RSS_NONFRAG_IPV4_TCP | \
72 ETH_RSS_NONFRAG_IPV4_UDP)
74 #define QEDE_TXQ_FLAGS ((uint32_t)ETH_TXQ_FLAGS_NOMULTSEGS)
78 #define for_each_queue(i) for (i = 0; i < qdev->num_queues; i++)
81 * RX BD descriptor ring
83 struct qede_rx_entry {
84 struct rte_mbuf *mbuf;
86 /* allows expansion .. */
90 * Structure associated with each RX queue.
92 struct qede_rx_queue {
93 struct rte_mempool *mb_pool;
94 struct ecore_chain rx_bd_ring;
95 struct ecore_chain rx_comp_ring;
96 uint16_t *hw_cons_ptr;
97 void OSAL_IOMEM *hw_rxq_prod_addr;
98 struct qede_rx_entry *sw_rx_ring;
104 uint16_t rx_buf_size;
105 uint64_t rx_hw_errors;
106 uint64_t rx_alloc_errors;
107 struct qede_dev *qdev;
111 * TX BD descriptor ring
113 struct qede_tx_entry {
114 struct rte_mbuf *mbuf;
119 struct eth_db_data data;
123 struct qede_tx_queue {
124 struct ecore_chain tx_pbl;
125 struct qede_tx_entry *sw_tx_ring;
127 uint16_t nb_tx_avail;
128 uint16_t tx_free_thresh;
130 uint16_t *hw_cons_ptr;
133 void OSAL_IOMEM *doorbell_addr;
134 volatile union db_prod tx_db;
136 uint64_t txq_counter;
137 struct qede_dev *qdev;
140 struct qede_fastpath {
141 struct qede_dev *qdev;
144 struct ecore_sb_info *sb_info;
145 struct qede_rx_queue *rxq;
146 struct qede_tx_queue *txqs[MAX_NUM_TC];
151 * RX/TX function prototypes
153 int qede_rx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
154 uint16_t nb_desc, unsigned int socket_id,
155 const struct rte_eth_rxconf *rx_conf,
156 struct rte_mempool *mp);
158 int qede_tx_queue_setup(struct rte_eth_dev *dev,
161 unsigned int socket_id,
162 const struct rte_eth_txconf *tx_conf);
164 void qede_rx_queue_release(void *rx_queue);
166 void qede_tx_queue_release(void *tx_queue);
168 int qede_dev_start(struct rte_eth_dev *eth_dev);
170 void qede_dev_stop(struct rte_eth_dev *eth_dev);
172 int qede_reset_fp_rings(struct qede_dev *qdev);
174 void qede_free_fp_arrays(struct qede_dev *qdev);
176 void qede_free_mem_load(struct rte_eth_dev *eth_dev);
178 uint16_t qede_xmit_pkts(void *p_txq, struct rte_mbuf **tx_pkts,
181 uint16_t qede_recv_pkts(void *p_rxq, struct rte_mbuf **rx_pkts,
184 /* Fastpath resource alloc/dealloc helpers */
185 int qede_alloc_fp_resc(struct qede_dev *qdev);
187 void qede_dealloc_fp_resc(struct rte_eth_dev *eth_dev);
189 #endif /* _QEDE_RXTX_H_ */