numam-dpdk/drivers/net/iavf/iavf_rxtx.h
Leyi Rong b8b4c54ef9 net/iavf: support flexible Rx descriptor in normal path
Support flexible Rx descriptor format in normal
path of iAVF PMD.

Signed-off-by: Leyi Rong <leyi.rong@intel.com>
Reviewed-by: Qi Zhang <qi.z.zhang@intel.com>
2020-04-21 13:57:09 +02:00

494 lines
15 KiB
C

/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2017 Intel Corporation
*/
#ifndef _IAVF_RXTX_H_
#define _IAVF_RXTX_H_
/* In QLEN must be whole number of 32 descriptors. */
#define IAVF_ALIGN_RING_DESC 32
#define IAVF_MIN_RING_DESC 64
#define IAVF_MAX_RING_DESC 4096
#define IAVF_DMA_MEM_ALIGN 4096
/* Base address of the HW descriptor ring should be 128B aligned. */
#define IAVF_RING_BASE_ALIGN 128
/* used for Rx Bulk Allocate */
#define IAVF_RX_MAX_BURST 32
/* used for Vector PMD */
#define IAVF_VPMD_RX_MAX_BURST 32
#define IAVF_VPMD_TX_MAX_BURST 32
#define IAVF_RXQ_REARM_THRESH 32
#define IAVF_VPMD_DESCS_PER_LOOP 4
#define IAVF_VPMD_TX_MAX_FREE_BUF 64
#define IAVF_NO_VECTOR_FLAGS ( \
DEV_TX_OFFLOAD_MULTI_SEGS | \
DEV_TX_OFFLOAD_VLAN_INSERT | \
DEV_TX_OFFLOAD_SCTP_CKSUM | \
DEV_TX_OFFLOAD_UDP_CKSUM | \
DEV_TX_OFFLOAD_TCP_TSO | \
DEV_TX_OFFLOAD_TCP_CKSUM)
#define DEFAULT_TX_RS_THRESH 32
#define DEFAULT_TX_FREE_THRESH 32
#define IAVF_MIN_TSO_MSS 256
#define IAVF_MAX_TSO_MSS 9668
#define IAVF_TSO_MAX_SEG UINT8_MAX
#define IAVF_TX_MAX_MTU_SEG 8
#define IAVF_TX_CKSUM_OFFLOAD_MASK ( \
PKT_TX_IP_CKSUM | \
PKT_TX_L4_MASK | \
PKT_TX_TCP_SEG)
#define IAVF_TX_OFFLOAD_MASK ( \
PKT_TX_OUTER_IPV6 | \
PKT_TX_OUTER_IPV4 | \
PKT_TX_IPV6 | \
PKT_TX_IPV4 | \
PKT_TX_VLAN_PKT | \
PKT_TX_IP_CKSUM | \
PKT_TX_L4_MASK | \
PKT_TX_TCP_SEG)
#define IAVF_TX_OFFLOAD_NOTSUP_MASK \
(PKT_TX_OFFLOAD_MASK ^ IAVF_TX_OFFLOAD_MASK)
/* HW desc structure, both 16-byte and 32-byte types are supported */
#ifdef RTE_LIBRTE_IAVF_16BYTE_RX_DESC
#define iavf_rx_desc iavf_16byte_rx_desc
#define iavf_rx_flex_desc iavf_16b_rx_flex_desc
#else
#define iavf_rx_desc iavf_32byte_rx_desc
#define iavf_rx_flex_desc iavf_32b_rx_flex_desc
#endif
struct iavf_rxq_ops {
void (*release_mbufs)(struct iavf_rx_queue *rxq);
};
struct iavf_txq_ops {
void (*release_mbufs)(struct iavf_tx_queue *txq);
};
/* Structure associated with each Rx queue. */
struct iavf_rx_queue {
struct rte_mempool *mp; /* mbuf pool to populate Rx ring */
const struct rte_memzone *mz; /* memzone for Rx ring */
volatile union iavf_rx_desc *rx_ring; /* Rx ring virtual address */
uint64_t rx_ring_phys_addr; /* Rx ring DMA address */
struct rte_mbuf **sw_ring; /* address of SW ring */
uint16_t nb_rx_desc; /* ring length */
uint16_t rx_tail; /* current value of tail */
volatile uint8_t *qrx_tail; /* register address of tail */
uint16_t rx_free_thresh; /* max free RX desc to hold */
uint16_t nb_rx_hold; /* number of held free RX desc */
struct rte_mbuf *pkt_first_seg; /* first segment of current packet */
struct rte_mbuf *pkt_last_seg; /* last segment of current packet */
struct rte_mbuf fake_mbuf; /* dummy mbuf */
uint8_t rxdid;
/* used for VPMD */
uint16_t rxrearm_nb; /* number of remaining to be re-armed */
uint16_t rxrearm_start; /* the idx we start the re-arming from */
uint64_t mbuf_initializer; /* value to init mbufs */
/* for rx bulk */
uint16_t rx_nb_avail; /* number of staged packets ready */
uint16_t rx_next_avail; /* index of next staged packets */
uint16_t rx_free_trigger; /* triggers rx buffer allocation */
struct rte_mbuf *rx_stage[IAVF_RX_MAX_BURST * 2]; /* store mbuf */
uint16_t port_id; /* device port ID */
uint8_t crc_len; /* 0 if CRC stripped, 4 otherwise */
uint16_t queue_id; /* Rx queue index */
uint16_t rx_buf_len; /* The packet buffer size */
uint16_t rx_hdr_len; /* The header buffer size */
uint16_t max_pkt_len; /* Maximum packet length */
struct iavf_vsi *vsi; /**< the VSI this queue belongs to */
bool q_set; /* if rx queue has been configured */
bool rx_deferred_start; /* don't start this queue in dev start */
const struct iavf_rxq_ops *ops;
};
struct iavf_tx_entry {
struct rte_mbuf *mbuf;
uint16_t next_id;
uint16_t last_id;
};
/* Structure associated with each TX queue. */
struct iavf_tx_queue {
const struct rte_memzone *mz; /* memzone for Tx ring */
volatile struct iavf_tx_desc *tx_ring; /* Tx ring virtual address */
uint64_t tx_ring_phys_addr; /* Tx ring DMA address */
struct iavf_tx_entry *sw_ring; /* address array of SW ring */
uint16_t nb_tx_desc; /* ring length */
uint16_t tx_tail; /* current value of tail */
volatile uint8_t *qtx_tail; /* register address of tail */
/* number of used desc since RS bit set */
uint16_t nb_used;
uint16_t nb_free;
uint16_t last_desc_cleaned; /* last desc have been cleaned*/
uint16_t free_thresh;
uint16_t rs_thresh;
uint16_t port_id;
uint16_t queue_id;
uint64_t offloads;
uint16_t next_dd; /* next to set RS, for VPMD */
uint16_t next_rs; /* next to check DD, for VPMD */
bool q_set; /* if rx queue has been configured */
bool tx_deferred_start; /* don't start this queue in dev start */
const struct iavf_txq_ops *ops;
};
/* Offload features */
union iavf_tx_offload {
uint64_t data;
struct {
uint64_t l2_len:7; /* L2 (MAC) Header Length. */
uint64_t l3_len:9; /* L3 (IP) Header Length. */
uint64_t l4_len:8; /* L4 Header Length. */
uint64_t tso_segsz:16; /* TCP TSO segment size */
/* uint64_t unused : 24; */
};
};
/* Rx Flex Descriptors
* These descriptors are used instead of the legacy version descriptors
*/
union iavf_16b_rx_flex_desc {
struct {
__le64 pkt_addr; /* Packet buffer address */
__le64 hdr_addr; /* Header buffer address */
/* bit 0 of hdr_addr is DD bit */
} read;
struct {
/* Qword 0 */
u8 rxdid; /* descriptor builder profile ID */
u8 mir_id_umb_cast; /* mirror=[5:0], umb=[7:6] */
__le16 ptype_flex_flags0; /* ptype=[9:0], ff0=[15:10] */
__le16 pkt_len; /* [15:14] are reserved */
__le16 hdr_len_sph_flex_flags1; /* header=[10:0] */
/* sph=[11:11] */
/* ff1/ext=[15:12] */
/* Qword 1 */
__le16 status_error0;
__le16 l2tag1;
__le16 flex_meta0;
__le16 flex_meta1;
} wb; /* writeback */
};
union iavf_32b_rx_flex_desc {
struct {
__le64 pkt_addr; /* Packet buffer address */
__le64 hdr_addr; /* Header buffer address */
/* bit 0 of hdr_addr is DD bit */
__le64 rsvd1;
__le64 rsvd2;
} read;
struct {
/* Qword 0 */
u8 rxdid; /* descriptor builder profile ID */
u8 mir_id_umb_cast; /* mirror=[5:0], umb=[7:6] */
__le16 ptype_flex_flags0; /* ptype=[9:0], ff0=[15:10] */
__le16 pkt_len; /* [15:14] are reserved */
__le16 hdr_len_sph_flex_flags1; /* header=[10:0] */
/* sph=[11:11] */
/* ff1/ext=[15:12] */
/* Qword 1 */
__le16 status_error0;
__le16 l2tag1;
__le16 flex_meta0;
__le16 flex_meta1;
/* Qword 2 */
__le16 status_error1;
u8 flex_flags2;
u8 time_stamp_low;
__le16 l2tag2_1st;
__le16 l2tag2_2nd;
/* Qword 3 */
__le16 flex_meta2;
__le16 flex_meta3;
union {
struct {
__le16 flex_meta4;
__le16 flex_meta5;
} flex;
__le32 ts_high;
} flex_ts;
} wb; /* writeback */
};
/* Rx Flex Descriptor
* RxDID Profile ID 16-21
* Flex-field 0: RSS hash lower 16-bits
* Flex-field 1: RSS hash upper 16-bits
* Flex-field 2: Flow ID lower 16-bits
* Flex-field 3: Flow ID upper 16-bits
* Flex-field 4: AUX0
* Flex-field 5: AUX1
*/
struct iavf_32b_rx_flex_desc_comms {
/* Qword 0 */
u8 rxdid;
u8 mir_id_umb_cast;
__le16 ptype_flexi_flags0;
__le16 pkt_len;
__le16 hdr_len_sph_flex_flags1;
/* Qword 1 */
__le16 status_error0;
__le16 l2tag1;
__le32 rss_hash;
/* Qword 2 */
__le16 status_error1;
u8 flexi_flags2;
u8 ts_low;
__le16 l2tag2_1st;
__le16 l2tag2_2nd;
/* Qword 3 */
__le32 flow_id;
union {
struct {
__le16 aux0;
__le16 aux1;
} flex;
__le32 ts_high;
} flex_ts;
};
/* Rx Flex Descriptor
* RxDID Profile ID 22-23 (swap Hash and FlowID)
* Flex-field 0: Flow ID lower 16-bits
* Flex-field 1: Flow ID upper 16-bits
* Flex-field 2: RSS hash lower 16-bits
* Flex-field 3: RSS hash upper 16-bits
* Flex-field 4: AUX0
* Flex-field 5: AUX1
*/
struct iavf_32b_rx_flex_desc_comms_ovs {
/* Qword 0 */
u8 rxdid;
u8 mir_id_umb_cast;
__le16 ptype_flexi_flags0;
__le16 pkt_len;
__le16 hdr_len_sph_flex_flags1;
/* Qword 1 */
__le16 status_error0;
__le16 l2tag1;
__le32 flow_id;
/* Qword 2 */
__le16 status_error1;
u8 flexi_flags2;
u8 ts_low;
__le16 l2tag2_1st;
__le16 l2tag2_2nd;
/* Qword 3 */
__le32 rss_hash;
union {
struct {
__le16 aux0;
__le16 aux1;
} flex;
__le32 ts_high;
} flex_ts;
};
/* Receive Flex Descriptor profile IDs: There are a total
* of 64 profiles where profile IDs 0/1 are for legacy; and
* profiles 2-63 are flex profiles that can be programmed
* with a specific metadata (profile 7 reserved for HW)
*/
enum iavf_rxdid {
IAVF_RXDID_LEGACY_0 = 0,
IAVF_RXDID_LEGACY_1 = 1,
IAVF_RXDID_FLEX_NIC = 2,
IAVF_RXDID_FLEX_NIC_2 = 6,
IAVF_RXDID_HW = 7,
IAVF_RXDID_COMMS_GENERIC = 16,
IAVF_RXDID_COMMS_AUX_VLAN = 17,
IAVF_RXDID_COMMS_AUX_IPV4 = 18,
IAVF_RXDID_COMMS_AUX_IPV6 = 19,
IAVF_RXDID_COMMS_AUX_IPV6_FLOW = 20,
IAVF_RXDID_COMMS_AUX_TCP = 21,
IAVF_RXDID_COMMS_OVS_1 = 22,
IAVF_RXDID_COMMS_OVS_2 = 23,
IAVF_RXDID_LAST = 63,
};
enum iavf_rx_flex_desc_status_error_0_bits {
/* Note: These are predefined bit offsets */
IAVF_RX_FLEX_DESC_STATUS0_DD_S = 0,
IAVF_RX_FLEX_DESC_STATUS0_EOF_S,
IAVF_RX_FLEX_DESC_STATUS0_HBO_S,
IAVF_RX_FLEX_DESC_STATUS0_L3L4P_S,
IAVF_RX_FLEX_DESC_STATUS0_XSUM_IPE_S,
IAVF_RX_FLEX_DESC_STATUS0_XSUM_L4E_S,
IAVF_RX_FLEX_DESC_STATUS0_XSUM_EIPE_S,
IAVF_RX_FLEX_DESC_STATUS0_XSUM_EUDPE_S,
IAVF_RX_FLEX_DESC_STATUS0_LPBK_S,
IAVF_RX_FLEX_DESC_STATUS0_IPV6EXADD_S,
IAVF_RX_FLEX_DESC_STATUS0_RXE_S,
IAVF_RX_FLEX_DESC_STATUS0_CRCP_S,
IAVF_RX_FLEX_DESC_STATUS0_RSS_VALID_S,
IAVF_RX_FLEX_DESC_STATUS0_L2TAG1P_S,
IAVF_RX_FLEX_DESC_STATUS0_XTRMD0_VALID_S,
IAVF_RX_FLEX_DESC_STATUS0_XTRMD1_VALID_S,
IAVF_RX_FLEX_DESC_STATUS0_LAST /* this entry must be last!!! */
};
/* for iavf_32b_rx_flex_desc.ptype_flex_flags0 member */
#define IAVF_RX_FLEX_DESC_PTYPE_M (0x3FF) /* 10-bits */
/* for iavf_32b_rx_flex_desc.pkt_len member */
#define IAVF_RX_FLX_DESC_PKT_LEN_M (0x3FFF) /* 14-bits */
int iavf_dev_rx_queue_setup(struct rte_eth_dev *dev,
uint16_t queue_idx,
uint16_t nb_desc,
unsigned int socket_id,
const struct rte_eth_rxconf *rx_conf,
struct rte_mempool *mp);
int iavf_dev_rx_queue_start(struct rte_eth_dev *dev, uint16_t rx_queue_id);
int iavf_dev_rx_queue_stop(struct rte_eth_dev *dev, uint16_t rx_queue_id);
void iavf_dev_rx_queue_release(void *rxq);
int iavf_dev_tx_queue_setup(struct rte_eth_dev *dev,
uint16_t queue_idx,
uint16_t nb_desc,
unsigned int socket_id,
const struct rte_eth_txconf *tx_conf);
int iavf_dev_tx_queue_start(struct rte_eth_dev *dev, uint16_t tx_queue_id);
int iavf_dev_tx_queue_stop(struct rte_eth_dev *dev, uint16_t tx_queue_id);
void iavf_dev_tx_queue_release(void *txq);
void iavf_stop_queues(struct rte_eth_dev *dev);
uint16_t iavf_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
uint16_t nb_pkts);
uint16_t iavf_recv_pkts_flex_rxd(void *rx_queue,
struct rte_mbuf **rx_pkts,
uint16_t nb_pkts);
uint16_t iavf_recv_scattered_pkts(void *rx_queue,
struct rte_mbuf **rx_pkts,
uint16_t nb_pkts);
uint16_t iavf_recv_scattered_pkts_flex_rxd(void *rx_queue,
struct rte_mbuf **rx_pkts,
uint16_t nb_pkts);
uint16_t iavf_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
uint16_t nb_pkts);
uint16_t iavf_prep_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
uint16_t nb_pkts);
void iavf_set_rx_function(struct rte_eth_dev *dev);
void iavf_set_tx_function(struct rte_eth_dev *dev);
void iavf_dev_rxq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
struct rte_eth_rxq_info *qinfo);
void iavf_dev_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id,
struct rte_eth_txq_info *qinfo);
uint32_t iavf_dev_rxq_count(struct rte_eth_dev *dev, uint16_t queue_id);
int iavf_dev_rx_desc_status(void *rx_queue, uint16_t offset);
int iavf_dev_tx_desc_status(void *tx_queue, uint16_t offset);
uint16_t iavf_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
uint16_t nb_pkts);
uint16_t iavf_recv_scattered_pkts_vec(void *rx_queue,
struct rte_mbuf **rx_pkts,
uint16_t nb_pkts);
uint16_t iavf_xmit_fixed_burst_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
uint16_t nb_pkts);
uint16_t iavf_recv_pkts_vec_avx2(void *rx_queue, struct rte_mbuf **rx_pkts,
uint16_t nb_pkts);
uint16_t iavf_recv_scattered_pkts_vec_avx2(void *rx_queue,
struct rte_mbuf **rx_pkts,
uint16_t nb_pkts);
uint16_t iavf_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
uint16_t nb_pkts);
uint16_t iavf_xmit_pkts_vec_avx2(void *tx_queue, struct rte_mbuf **tx_pkts,
uint16_t nb_pkts);
int iavf_rx_vec_dev_check(struct rte_eth_dev *dev);
int iavf_tx_vec_dev_check(struct rte_eth_dev *dev);
int iavf_rxq_vec_setup(struct iavf_rx_queue *rxq);
int iavf_txq_vec_setup(struct iavf_tx_queue *txq);
const uint32_t *iavf_get_default_ptype_table(void);
static inline
void iavf_dump_rx_descriptor(struct iavf_rx_queue *rxq,
const volatile void *desc,
uint16_t rx_id)
{
#ifdef RTE_LIBRTE_IAVF_16BYTE_RX_DESC
const volatile union iavf_16byte_rx_desc *rx_desc = desc;
printf("Queue %d Rx_desc %d: QW0: 0x%016"PRIx64" QW1: 0x%016"PRIx64"\n",
rxq->queue_id, rx_id, rx_desc->read.pkt_addr,
rx_desc->read.hdr_addr);
#else
const volatile union iavf_32byte_rx_desc *rx_desc = desc;
printf("Queue %d Rx_desc %d: QW0: 0x%016"PRIx64" QW1: 0x%016"PRIx64
" QW2: 0x%016"PRIx64" QW3: 0x%016"PRIx64"\n", rxq->queue_id,
rx_id, rx_desc->read.pkt_addr, rx_desc->read.hdr_addr,
rx_desc->read.rsvd1, rx_desc->read.rsvd2);
#endif
}
/* All the descriptors are 16 bytes, so just use one of them
* to print the qwords
*/
static inline
void iavf_dump_tx_descriptor(const struct iavf_tx_queue *txq,
const volatile void *desc, uint16_t tx_id)
{
const char *name;
const volatile struct iavf_tx_desc *tx_desc = desc;
enum iavf_tx_desc_dtype_value type;
type = (enum iavf_tx_desc_dtype_value)rte_le_to_cpu_64(
tx_desc->cmd_type_offset_bsz &
rte_cpu_to_le_64(IAVF_TXD_QW1_DTYPE_MASK));
switch (type) {
case IAVF_TX_DESC_DTYPE_DATA:
name = "Tx_data_desc";
break;
case IAVF_TX_DESC_DTYPE_CONTEXT:
name = "Tx_context_desc";
break;
default:
name = "unknown_desc";
break;
}
printf("Queue %d %s %d: QW0: 0x%016"PRIx64" QW1: 0x%016"PRIx64"\n",
txq->queue_id, name, tx_id, tx_desc->buffer_addr,
tx_desc->cmd_type_offset_bsz);
}
#ifdef RTE_LIBRTE_IAVF_DEBUG_DUMP_DESC
#define IAVF_DUMP_RX_DESC(rxq, desc, rx_id) \
iavf_dump_rx_descriptor(rxq, desc, rx_id)
#define IAVF_DUMP_TX_DESC(txq, desc, tx_id) \
iavf_dump_tx_descriptor(txq, desc, tx_id)
#else
#define IAVF_DUMP_RX_DESC(rxq, desc, rx_id) do { } while (0)
#define IAVF_DUMP_TX_DESC(txq, desc, tx_id) do { } while (0)
#endif
#endif /* _IAVF_RXTX_H_ */