280 lines
8.0 KiB
C
280 lines
8.0 KiB
C
/*
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* Copyright (c) 2016 QLogic Corporation.
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* All rights reserved.
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* www.qlogic.com
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*
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* See LICENSE.qede_pmd for copyright and licensing details.
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*/
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#ifndef _QEDE_RXTX_H_
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#define _QEDE_RXTX_H_
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#include "qede_ethdev.h"
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/* Ring Descriptors */
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#define RX_RING_SIZE_POW 16 /* 64K */
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#define RX_RING_SIZE (1ULL << RX_RING_SIZE_POW)
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#define NUM_RX_BDS_MAX (RX_RING_SIZE - 1)
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#define NUM_RX_BDS_MIN 128
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#define NUM_RX_BDS_DEF NUM_RX_BDS_MAX
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#define NUM_RX_BDS(q) (q->nb_rx_desc - 1)
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#define TX_RING_SIZE_POW 16 /* 64K */
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#define TX_RING_SIZE (1ULL << TX_RING_SIZE_POW)
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#define NUM_TX_BDS_MAX (TX_RING_SIZE - 1)
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#define NUM_TX_BDS_MIN 128
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#define NUM_TX_BDS_DEF NUM_TX_BDS_MAX
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#define NUM_TX_BDS(q) (q->nb_tx_desc - 1)
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#define TX_CONS(txq) (txq->sw_tx_cons & NUM_TX_BDS(txq))
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#define TX_PROD(txq) (txq->sw_tx_prod & NUM_TX_BDS(txq))
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#define QEDE_DEFAULT_TX_FREE_THRESH 32
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#define QEDE_CSUM_ERROR (1 << 0)
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#define QEDE_CSUM_UNNECESSARY (1 << 1)
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#define QEDE_TUNN_CSUM_UNNECESSARY (1 << 2)
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#define QEDE_BD_SET_ADDR_LEN(bd, maddr, len) \
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do { \
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(bd)->addr.hi = rte_cpu_to_le_32(U64_HI(maddr)); \
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(bd)->addr.lo = rte_cpu_to_le_32(U64_LO(maddr)); \
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(bd)->nbytes = rte_cpu_to_le_16(len); \
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} while (0)
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#define CQE_HAS_VLAN(flags) \
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((flags) & (PARSING_AND_ERR_FLAGS_TAG8021QEXIST_MASK \
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<< PARSING_AND_ERR_FLAGS_TAG8021QEXIST_SHIFT))
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#define CQE_HAS_OUTER_VLAN(flags) \
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((flags) & (PARSING_AND_ERR_FLAGS_TUNNEL8021QTAGEXIST_MASK \
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<< PARSING_AND_ERR_FLAGS_TUNNEL8021QTAGEXIST_SHIFT))
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#define QEDE_MIN_RX_BUFF_SIZE (1024)
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#define QEDE_VLAN_TAG_SIZE (4)
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#define QEDE_LLC_SNAP_HDR_LEN (8)
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/* Max supported alignment is 256 (8 shift)
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* minimal alignment shift 6 is optimal for 57xxx HW performance
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*/
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#define QEDE_L1_CACHE_SHIFT 6
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#define QEDE_RX_ALIGN_SHIFT (RTE_MAX(6, RTE_MIN(8, QEDE_L1_CACHE_SHIFT)))
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#define QEDE_FW_RX_ALIGN_END (1UL << QEDE_RX_ALIGN_SHIFT)
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#define QEDE_CEIL_TO_CACHE_LINE_SIZE(n) (((n) + (QEDE_FW_RX_ALIGN_END - 1)) & \
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~(QEDE_FW_RX_ALIGN_END - 1))
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/* Note: QEDE_LLC_SNAP_HDR_LEN is optional */
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#define QEDE_ETH_OVERHEAD (((2 * QEDE_VLAN_TAG_SIZE)) - (ETHER_CRC_LEN) \
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+ (QEDE_LLC_SNAP_HDR_LEN))
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#define QEDE_RSS_OFFLOAD_ALL (ETH_RSS_IPV4 |\
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ETH_RSS_NONFRAG_IPV4_TCP |\
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ETH_RSS_NONFRAG_IPV4_UDP |\
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ETH_RSS_IPV6 |\
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ETH_RSS_NONFRAG_IPV6_TCP |\
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ETH_RSS_NONFRAG_IPV6_UDP |\
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ETH_RSS_VXLAN |\
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ETH_RSS_GENEVE)
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#define for_each_rss(i) for (i = 0; i < qdev->num_rx_queues; i++)
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#define for_each_tss(i) for (i = 0; i < qdev->num_tx_queues; i++)
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#define QEDE_RXTX_MAX(qdev) \
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(RTE_MAX(QEDE_RSS_COUNT(qdev), QEDE_TSS_COUNT(qdev)))
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/* Macros for non-tunnel packet types lkup table */
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#define QEDE_PKT_TYPE_UNKNOWN 0x0
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#define QEDE_PKT_TYPE_MAX 0x3f
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#define QEDE_PKT_TYPE_IPV4 0x1
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#define QEDE_PKT_TYPE_IPV6 0x2
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#define QEDE_PKT_TYPE_IPV4_TCP 0x5
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#define QEDE_PKT_TYPE_IPV6_TCP 0x6
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#define QEDE_PKT_TYPE_IPV4_UDP 0x9
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#define QEDE_PKT_TYPE_IPV6_UDP 0xa
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/* For frag pkts, corresponding IP bits is set */
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#define QEDE_PKT_TYPE_IPV4_FRAG 0x11
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#define QEDE_PKT_TYPE_IPV6_FRAG 0x12
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#define QEDE_PKT_TYPE_IPV4_VLAN 0x21
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#define QEDE_PKT_TYPE_IPV6_VLAN 0x22
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#define QEDE_PKT_TYPE_IPV4_TCP_VLAN 0x25
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#define QEDE_PKT_TYPE_IPV6_TCP_VLAN 0x26
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#define QEDE_PKT_TYPE_IPV4_UDP_VLAN 0x29
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#define QEDE_PKT_TYPE_IPV6_UDP_VLAN 0x2a
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#define QEDE_PKT_TYPE_IPV4_VLAN_FRAG 0x31
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#define QEDE_PKT_TYPE_IPV6_VLAN_FRAG 0x32
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/* Macros for tunneled packets with next protocol lkup table */
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#define QEDE_PKT_TYPE_TUNN_GENEVE 0x1
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#define QEDE_PKT_TYPE_TUNN_GRE 0x2
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#define QEDE_PKT_TYPE_TUNN_VXLAN 0x3
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/* Bit 2 is don't care bit */
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#define QEDE_PKT_TYPE_TUNN_L2_TENID_NOEXIST_GENEVE 0x9
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#define QEDE_PKT_TYPE_TUNN_L2_TENID_NOEXIST_GRE 0xa
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#define QEDE_PKT_TYPE_TUNN_L2_TENID_NOEXIST_VXLAN 0xb
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#define QEDE_PKT_TYPE_TUNN_L2_TENID_EXIST_GENEVE 0xd
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#define QEDE_PKT_TYPE_TUNN_L2_TENID_EXIST_GRE 0xe
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#define QEDE_PKT_TYPE_TUNN_L2_TENID_EXIST_VXLAN 0xf
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#define QEDE_PKT_TYPE_TUNN_IPV4_TENID_NOEXIST_GENEVE 0x11
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#define QEDE_PKT_TYPE_TUNN_IPV4_TENID_NOEXIST_GRE 0x12
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#define QEDE_PKT_TYPE_TUNN_IPV4_TENID_NOEXIST_VXLAN 0x13
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#define QEDE_PKT_TYPE_TUNN_IPV4_TENID_EXIST_GENEVE 0x15
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#define QEDE_PKT_TYPE_TUNN_IPV4_TENID_EXIST_GRE 0x16
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#define QEDE_PKT_TYPE_TUNN_IPV4_TENID_EXIST_VXLAN 0x17
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#define QEDE_PKT_TYPE_TUNN_IPV6_TENID_NOEXIST_GENEVE 0x19
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#define QEDE_PKT_TYPE_TUNN_IPV6_TENID_NOEXIST_GRE 0x1a
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#define QEDE_PKT_TYPE_TUNN_IPV6_TENID_NOEXIST_VXLAN 0x1b
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#define QEDE_PKT_TYPE_TUNN_IPV6_TENID_EXIST_GENEVE 0x1d
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#define QEDE_PKT_TYPE_TUNN_IPV6_TENID_EXIST_GRE 0x1e
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#define QEDE_PKT_TYPE_TUNN_IPV6_TENID_EXIST_VXLAN 0x1f
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#define QEDE_PKT_TYPE_TUNN_MAX_TYPE 0x20 /* 2^5 */
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#define QEDE_TX_CSUM_OFFLOAD_MASK (PKT_TX_IP_CKSUM | \
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PKT_TX_TCP_CKSUM | \
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PKT_TX_UDP_CKSUM | \
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PKT_TX_OUTER_IP_CKSUM | \
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PKT_TX_TCP_SEG)
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#define QEDE_TX_OFFLOAD_MASK (QEDE_TX_CSUM_OFFLOAD_MASK | \
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PKT_TX_QINQ_PKT | \
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PKT_TX_VLAN_PKT | \
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PKT_TX_TUNNEL_VXLAN | \
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PKT_TX_TUNNEL_GENEVE | \
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PKT_TX_TUNNEL_MPLSINUDP | \
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PKT_TX_TUNNEL_GRE)
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#define QEDE_TX_OFFLOAD_NOTSUP_MASK \
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(PKT_TX_OFFLOAD_MASK ^ QEDE_TX_OFFLOAD_MASK)
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/*
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* RX BD descriptor ring
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*/
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struct qede_rx_entry {
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struct rte_mbuf *mbuf;
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uint32_t page_offset;
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/* allows expansion .. */
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};
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/* TPA related structures */
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struct qede_agg_info {
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struct rte_mbuf *tpa_head; /* Pointer to first TPA segment */
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struct rte_mbuf *tpa_tail; /* Pointer to last TPA segment */
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};
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/*
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* Structure associated with each RX queue.
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*/
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struct qede_rx_queue {
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struct rte_mempool *mb_pool;
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struct ecore_chain rx_bd_ring;
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struct ecore_chain rx_comp_ring;
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uint16_t *hw_cons_ptr;
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void OSAL_IOMEM *hw_rxq_prod_addr;
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struct qede_rx_entry *sw_rx_ring;
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struct ecore_sb_info *sb_info;
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uint16_t sw_rx_cons;
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uint16_t sw_rx_prod;
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uint16_t nb_rx_desc;
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uint16_t queue_id;
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uint16_t port_id;
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uint16_t rx_buf_size;
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uint64_t rcv_pkts;
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uint64_t rx_segs;
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uint64_t rx_hw_errors;
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uint64_t rx_alloc_errors;
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struct qede_agg_info tpa_info[ETH_TPA_MAX_AGGS_NUM];
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struct qede_dev *qdev;
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void *handle;
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};
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/*
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* TX BD descriptor ring
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*/
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struct qede_tx_entry {
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struct rte_mbuf *mbuf;
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uint8_t flags;
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};
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union db_prod {
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struct eth_db_data data;
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uint32_t raw;
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};
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struct qede_tx_queue {
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struct ecore_chain tx_pbl;
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struct qede_tx_entry *sw_tx_ring;
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uint16_t nb_tx_desc;
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uint16_t nb_tx_avail;
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uint16_t tx_free_thresh;
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uint16_t queue_id;
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uint16_t *hw_cons_ptr;
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uint16_t sw_tx_cons;
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uint16_t sw_tx_prod;
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void OSAL_IOMEM *doorbell_addr;
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volatile union db_prod tx_db;
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uint16_t port_id;
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uint64_t xmit_pkts;
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bool is_legacy;
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struct qede_dev *qdev;
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void *handle;
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};
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struct qede_fastpath {
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struct ecore_sb_info *sb_info;
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struct qede_rx_queue *rxq;
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struct qede_tx_queue *txq;
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};
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/*
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* RX/TX function prototypes
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*/
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int qede_rx_queue_setup(struct rte_eth_dev *dev, uint16_t queue_idx,
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uint16_t nb_desc, unsigned int socket_id,
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const struct rte_eth_rxconf *rx_conf,
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struct rte_mempool *mp);
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int qede_tx_queue_setup(struct rte_eth_dev *dev,
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uint16_t queue_idx,
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uint16_t nb_desc,
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unsigned int socket_id,
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const struct rte_eth_txconf *tx_conf);
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void qede_rx_queue_release(void *rx_queue);
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void qede_tx_queue_release(void *tx_queue);
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uint16_t qede_xmit_pkts(void *p_txq, struct rte_mbuf **tx_pkts,
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uint16_t nb_pkts);
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uint16_t qede_xmit_prep_pkts(void *p_txq, struct rte_mbuf **tx_pkts,
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uint16_t nb_pkts);
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uint16_t qede_recv_pkts(void *p_rxq, struct rte_mbuf **rx_pkts,
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uint16_t nb_pkts);
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uint16_t qede_rxtx_pkts_dummy(void *p_rxq,
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struct rte_mbuf **pkts,
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uint16_t nb_pkts);
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int qede_start_queues(struct rte_eth_dev *eth_dev);
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void qede_stop_queues(struct rte_eth_dev *eth_dev);
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/* Fastpath resource alloc/dealloc helpers */
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int qede_alloc_fp_resc(struct qede_dev *qdev);
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void qede_dealloc_fp_resc(struct rte_eth_dev *eth_dev);
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#endif /* _QEDE_RXTX_H_ */
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