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u-boot/drivers/net/octeontx/nic.h
Suneel Garapati 0008e9a69d net: Add NIC controller driver for OcteonTX 
Adds support for Network Interface controllers found on
OcteonTX SoC platforms.

Signed-off-by: Suneel Garapati <sgarapati@marvell.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Joe Hershberger <joe.hershberger@ni.com>
2020-10-14 07:55:56 +02:00

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/* SPDX-License-Identifier: GPL-2.0
*
* Copyright (C) 2018 Marvell International Ltd.
*/
#ifndef NIC_H
#define NIC_H
#include <linux/netdevice.h>
#include "bgx.h"
#define PCI_DEVICE_ID_CAVIUM_NICVF_1 0x0011
/* Subsystem device IDs */
#define PCI_SUBSYS_DEVID_88XX_NIC_PF 0xA11E
#define PCI_SUBSYS_DEVID_81XX_NIC_PF 0xA21E
#define PCI_SUBSYS_DEVID_83XX_NIC_PF 0xA31E
#define PCI_SUBSYS_DEVID_88XX_PASS1_NIC_VF 0xA11E
#define PCI_SUBSYS_DEVID_88XX_NIC_VF 0xA134
#define PCI_SUBSYS_DEVID_81XX_NIC_VF 0xA234
#define PCI_SUBSYS_DEVID_83XX_NIC_VF 0xA334
#define NIC_INTF_COUNT 2 /* Interfaces btw VNIC and TNS/BGX */
#define NIC_CHANS_PER_INF 128
#define NIC_MAX_CHANS (NIC_INTF_COUNT * NIC_CHANS_PER_INF)
/* PCI BAR nos */
#define PCI_CFG_REG_BAR_NUM 0
#define PCI_MSIX_REG_BAR_NUM 4
/* NIC SRIOV VF count */
#define MAX_NUM_VFS_SUPPORTED 128
#define DEFAULT_NUM_VF_ENABLED 8
#define NIC_TNS_BYPASS_MODE 0
#define NIC_TNS_MODE 1
/* NIC priv flags */
#define NIC_SRIOV_ENABLED BIT(0)
#define NIC_TNS_ENABLED BIT(1)
/* VNIC HW optimiation features */
#define VNIC_RX_CSUM_OFFLOAD_SUPPORT
#undef VNIC_TX_CSUM_OFFLOAD_SUPPORT
#undef VNIC_SG_SUPPORT
#undef VNIC_TSO_SUPPORT
#undef VNIC_LRO_SUPPORT
#undef VNIC_RSS_SUPPORT
/* TSO not supported in Thunder pass1 */
#ifdef VNIC_TSO_SUPPORT
#define VNIC_SW_TSO_SUPPORT
#undef VNIC_HW_TSO_SUPPORT
#endif
/* ETHTOOL enable or disable, undef this to disable */
#define NICVF_ETHTOOL_ENABLE
/* Min/Max packet size */
#define NIC_HW_MIN_FRS 64
#define NIC_HW_MAX_FRS 9200 /* 9216 max packet including FCS */
/* Max pkinds */
#define NIC_MAX_PKIND 16
/* Max when CPI_ALG is IP diffserv */
#define NIC_MAX_CPI_PER_LMAC 64
/* NIC VF Interrupts */
#define NICVF_INTR_CQ 0
#define NICVF_INTR_SQ 1
#define NICVF_INTR_RBDR 2
#define NICVF_INTR_PKT_DROP 3
#define NICVF_INTR_TCP_TIMER 4
#define NICVF_INTR_MBOX 5
#define NICVF_INTR_QS_ERR 6
#define NICVF_INTR_CQ_SHIFT 0
#define NICVF_INTR_SQ_SHIFT 8
#define NICVF_INTR_RBDR_SHIFT 16
#define NICVF_INTR_PKT_DROP_SHIFT 20
#define NICVF_INTR_TCP_TIMER_SHIFT 21
#define NICVF_INTR_MBOX_SHIFT 22
#define NICVF_INTR_QS_ERR_SHIFT 23
#define NICVF_INTR_CQ_MASK (0xFF << NICVF_INTR_CQ_SHIFT)
#define NICVF_INTR_SQ_MASK (0xFF << NICVF_INTR_SQ_SHIFT)
#define NICVF_INTR_RBDR_MASK (0x03 << NICVF_INTR_RBDR_SHIFT)
#define NICVF_INTR_PKT_DROP_MASK BIT(NICVF_INTR_PKT_DROP_SHIFT)
#define NICVF_INTR_TCP_TIMER_MASK BIT(NICVF_INTR_TCP_TIMER_SHIFT)
#define NICVF_INTR_MBOX_MASK BIT(NICVF_INTR_MBOX_SHIFT)
#define NICVF_INTR_QS_ERR_MASK BIT(NICVF_INTR_QS_ERR_SHIFT)
/* MSI-X interrupts */
#define NIC_PF_MSIX_VECTORS 10
#define NIC_VF_MSIX_VECTORS 20
#define NIC_PF_INTR_ID_ECC0_SBE 0
#define NIC_PF_INTR_ID_ECC0_DBE 1
#define NIC_PF_INTR_ID_ECC1_SBE 2
#define NIC_PF_INTR_ID_ECC1_DBE 3
#define NIC_PF_INTR_ID_ECC2_SBE 4
#define NIC_PF_INTR_ID_ECC2_DBE 5
#define NIC_PF_INTR_ID_ECC3_SBE 6
#define NIC_PF_INTR_ID_ECC3_DBE 7
#define NIC_PF_INTR_ID_MBOX0 8
#define NIC_PF_INTR_ID_MBOX1 9
/* Global timer for CQ timer thresh interrupts
* Calculated for SCLK of 700Mhz
* value written should be a 1/16thof what is expected
*
* 1 tick per ms
*/
#define NICPF_CLK_PER_INT_TICK 43750
struct nicvf_cq_poll {
u8 cq_idx; /* Completion queue index */
};
#define NIC_MAX_RSS_HASH_BITS 8
#define NIC_MAX_RSS_IDR_TBL_SIZE BIT(NIC_MAX_RSS_HASH_BITS)
#define RSS_HASH_KEY_SIZE 5 /* 320 bit key */
#ifdef VNIC_RSS_SUPPORT
struct nicvf_rss_info {
bool enable;
#define RSS_L2_EXTENDED_HASH_ENA BIT(0)
#define RSS_IP_HASH_ENA BIT(1)
#define RSS_TCP_HASH_ENA BIT(2)
#define RSS_TCP_SYN_DIS BIT(3)
#define RSS_UDP_HASH_ENA BIT(4)
#define RSS_L4_EXTENDED_HASH_ENA BIT(5)
#define RSS_ROCE_ENA BIT(6)
#define RSS_L3_BI_DIRECTION_ENA BIT(7)
#define RSS_L4_BI_DIRECTION_ENA BIT(8)
u64 cfg;
u8 hash_bits;
u16 rss_size;
u8 ind_tbl[NIC_MAX_RSS_IDR_TBL_SIZE];
u64 key[RSS_HASH_KEY_SIZE];
};
#endif
enum rx_stats_reg_offset {
RX_OCTS = 0x0,
RX_UCAST = 0x1,
RX_BCAST = 0x2,
RX_MCAST = 0x3,
RX_RED = 0x4,
RX_RED_OCTS = 0x5,
RX_ORUN = 0x6,
RX_ORUN_OCTS = 0x7,
RX_FCS = 0x8,
RX_L2ERR = 0x9,
RX_DRP_BCAST = 0xa,
RX_DRP_MCAST = 0xb,
RX_DRP_L3BCAST = 0xc,
RX_DRP_L3MCAST = 0xd,
RX_STATS_ENUM_LAST,
};
enum tx_stats_reg_offset {
TX_OCTS = 0x0,
TX_UCAST = 0x1,
TX_BCAST = 0x2,
TX_MCAST = 0x3,
TX_DROP = 0x4,
TX_STATS_ENUM_LAST,
};
struct nicvf_hw_stats {
u64 rx_bytes_ok;
u64 rx_ucast_frames_ok;
u64 rx_bcast_frames_ok;
u64 rx_mcast_frames_ok;
u64 rx_fcs_errors;
u64 rx_l2_errors;
u64 rx_drop_red;
u64 rx_drop_red_bytes;
u64 rx_drop_overrun;
u64 rx_drop_overrun_bytes;
u64 rx_drop_bcast;
u64 rx_drop_mcast;
u64 rx_drop_l3_bcast;
u64 rx_drop_l3_mcast;
u64 tx_bytes_ok;
u64 tx_ucast_frames_ok;
u64 tx_bcast_frames_ok;
u64 tx_mcast_frames_ok;
u64 tx_drops;
};
struct nicvf_drv_stats {
/* Rx */
u64 rx_frames_ok;
u64 rx_frames_64;
u64 rx_frames_127;
u64 rx_frames_255;
u64 rx_frames_511;
u64 rx_frames_1023;
u64 rx_frames_1518;
u64 rx_frames_jumbo;
u64 rx_drops;
/* Tx */
u64 tx_frames_ok;
u64 tx_drops;
u64 tx_busy;
u64 tx_tso;
};
struct hw_info {
u8 bgx_cnt;
u8 chans_per_lmac;
u8 chans_per_bgx; /* Rx/Tx chans */
u8 chans_per_rgx;
u8 chans_per_lbk;
u16 cpi_cnt;
u16 rssi_cnt;
u16 rss_ind_tbl_size;
u16 tl4_cnt;
u16 tl3_cnt;
u8 tl2_cnt;
u8 tl1_cnt;
bool tl1_per_bgx; /* TL1 per BGX or per LMAC */
u8 model_id;
};
struct nicvf {
struct udevice *dev;
u8 vf_id;
bool sqs_mode:1;
bool loopback_supported:1;
u8 tns_mode;
u8 node;
u16 mtu;
struct queue_set *qs;
#define MAX_SQS_PER_VF_SINGLE_NODE 5
#define MAX_SQS_PER_VF 11
u8 num_qs;
void *addnl_qs;
u16 vf_mtu;
void __iomem *reg_base;
#define MAX_QUEUES_PER_QSET 8
struct nicvf_cq_poll *napi[8];
u8 cpi_alg;
struct nicvf_hw_stats stats;
struct nicvf_drv_stats drv_stats;
struct nicpf *nicpf;
/* VF <-> PF mailbox communication */
bool pf_acked;
bool pf_nacked;
bool set_mac_pending;
bool link_up;
u8 duplex;
u32 speed;
u8 rev_id;
u8 rx_queues;
u8 tx_queues;
bool open;
bool rb_alloc_fail;
void *rcv_buf;
bool hw_tso;
};
static inline int node_id(void *addr)
{
return ((uintptr_t)addr >> 44) & 0x3;
}
struct nicpf {
struct udevice *udev;
struct hw_info *hw;
u8 node;
unsigned int flags;
u16 total_vf_cnt; /* Total num of VF supported */
u16 num_vf_en; /* No of VF enabled */
void __iomem *reg_base; /* Register start address */
u16 rss_ind_tbl_size;
u8 num_sqs_en; /* Secondary qsets enabled */
u64 nicvf[MAX_NUM_VFS_SUPPORTED];
u8 vf_sqs[MAX_NUM_VFS_SUPPORTED][MAX_SQS_PER_VF];
u8 pqs_vf[MAX_NUM_VFS_SUPPORTED];
bool sqs_used[MAX_NUM_VFS_SUPPORTED];
struct pkind_cfg pkind;
u8 bgx_cnt;
u8 rev_id;
#define NIC_SET_VF_LMAC_MAP(bgx, lmac) ((((bgx) & 0xF) << 4) | ((lmac) & 0xF))
#define NIC_GET_BGX_FROM_VF_LMAC_MAP(map) (((map) >> 4) & 0xF)
#define NIC_GET_LMAC_FROM_VF_LMAC_MAP(map) ((map) & 0xF)
u8 vf_lmac_map[MAX_LMAC];
u16 cpi_base[MAX_NUM_VFS_SUPPORTED];
u64 mac[MAX_NUM_VFS_SUPPORTED];
bool mbx_lock[MAX_NUM_VFS_SUPPORTED];
u8 link[MAX_LMAC];
u8 duplex[MAX_LMAC];
u32 speed[MAX_LMAC];
bool vf_enabled[MAX_NUM_VFS_SUPPORTED];
u16 rssi_base[MAX_NUM_VFS_SUPPORTED];
u8 lmac_cnt;
};
/* PF <--> VF Mailbox communication
* Eight 64bit registers are shared between PF and VF.
* Separate set for each VF.
* Writing '1' into last register mbx7 means end of message.
*/
/* PF <--> VF mailbox communication */
#define NIC_PF_VF_MAILBOX_SIZE 2
#define NIC_PF_VF_MBX_TIMEOUT 2000 /* ms */
/* Mailbox message types */
#define NIC_MBOX_MSG_READY 0x01 /* Is PF ready to rcv msgs */
#define NIC_MBOX_MSG_ACK 0x02 /* ACK the message received */
#define NIC_MBOX_MSG_NACK 0x03 /* NACK the message received */
#define NIC_MBOX_MSG_QS_CFG 0x04 /* Configure Qset */
#define NIC_MBOX_MSG_RQ_CFG 0x05 /* Configure receive queue */
#define NIC_MBOX_MSG_SQ_CFG 0x06 /* Configure Send queue */
#define NIC_MBOX_MSG_RQ_DROP_CFG 0x07 /* Configure receive queue */
#define NIC_MBOX_MSG_SET_MAC 0x08 /* Add MAC ID to DMAC filter */
#define NIC_MBOX_MSG_SET_MAX_FRS 0x09 /* Set max frame size */
#define NIC_MBOX_MSG_CPI_CFG 0x0A /* Config CPI, RSSI */
#define NIC_MBOX_MSG_RSS_SIZE 0x0B /* Get RSS indir_tbl size */
#define NIC_MBOX_MSG_RSS_CFG 0x0C /* Config RSS table */
#define NIC_MBOX_MSG_RSS_CFG_CONT 0x0D /* RSS config continuation */
#define NIC_MBOX_MSG_RQ_BP_CFG 0x0E /* RQ backpressure config */
#define NIC_MBOX_MSG_RQ_SW_SYNC 0x0F /* Flush inflight pkts to RQ */
#define NIC_MBOX_MSG_BGX_STATS 0x10 /* Get stats from BGX */
#define NIC_MBOX_MSG_BGX_LINK_CHANGE 0x11 /* BGX:LMAC link status */
#define NIC_MBOX_MSG_ALLOC_SQS 0x12 /* Allocate secondary Qset */
#define NIC_MBOX_MSG_NICVF_PTR 0x13 /* Send nicvf ptr to PF */
#define NIC_MBOX_MSG_PNICVF_PTR 0x14 /* Get primary qset nicvf ptr */
#define NIC_MBOX_MSG_SNICVF_PTR 0x15 /* Send sqet nicvf ptr to PVF */
#define NIC_MBOX_MSG_LOOPBACK 0x16 /* Set interface in loopback */
#define NIC_MBOX_MSG_CFG_DONE 0xF0 /* VF configuration done */
#define NIC_MBOX_MSG_SHUTDOWN 0xF1 /* VF is being shutdown */
struct nic_cfg_msg {
u8 msg;
u8 vf_id;
u8 node_id;
bool tns_mode:1;
bool sqs_mode:1;
bool loopback_supported:1;
u8 mac_addr[6];
};
/* Qset configuration */
struct qs_cfg_msg {
u8 msg;
u8 num;
u8 sqs_count;
u64 cfg;
};
/* Receive queue configuration */
struct rq_cfg_msg {
u8 msg;
u8 qs_num;
u8 rq_num;
u64 cfg;
};
/* Send queue configuration */
struct sq_cfg_msg {
u8 msg;
u8 qs_num;
u8 sq_num;
bool sqs_mode;
u64 cfg;
};
/* Set VF's MAC address */
struct set_mac_msg {
u8 msg;
u8 vf_id;
u8 mac_addr[6];
};
/* Set Maximum frame size */
struct set_frs_msg {
u8 msg;
u8 vf_id;
u16 max_frs;
};
/* Set CPI algorithm type */
struct cpi_cfg_msg {
u8 msg;
u8 vf_id;
u8 rq_cnt;
u8 cpi_alg;
};
/* Get RSS table size */
struct rss_sz_msg {
u8 msg;
u8 vf_id;
u16 ind_tbl_size;
};
/* Set RSS configuration */
struct rss_cfg_msg {
u8 msg;
u8 vf_id;
u8 hash_bits;
u8 tbl_len;
u8 tbl_offset;
#define RSS_IND_TBL_LEN_PER_MBX_MSG 8
u8 ind_tbl[RSS_IND_TBL_LEN_PER_MBX_MSG];
};
struct bgx_stats_msg {
u8 msg;
u8 vf_id;
u8 rx;
u8 idx;
u64 stats;
};
/* Physical interface link status */
struct bgx_link_status {
u8 msg;
u8 link_up;
u8 duplex;
u32 speed;
};
#ifdef VNIC_MULTI_QSET_SUPPORT
/* Get Extra Qset IDs */
struct sqs_alloc {
u8 msg;
u8 vf_id;
u8 qs_count;
};
struct nicvf_ptr {
u8 msg;
u8 vf_id;
bool sqs_mode;
u8 sqs_id;
u64 nicvf;
};
#endif
/* Set interface in loopback mode */
struct set_loopback {
u8 msg;
u8 vf_id;
bool enable;
};
/* 128 bit shared memory between PF and each VF */
union nic_mbx {
struct { u8 msg; } msg;
struct nic_cfg_msg nic_cfg;
struct qs_cfg_msg qs;
struct rq_cfg_msg rq;
struct sq_cfg_msg sq;
struct set_mac_msg mac;
struct set_frs_msg frs;
struct cpi_cfg_msg cpi_cfg;
struct rss_sz_msg rss_size;
struct rss_cfg_msg rss_cfg;
struct bgx_stats_msg bgx_stats;
struct bgx_link_status link_status;
#ifdef VNIC_MULTI_QSET_SUPPORT
struct sqs_alloc sqs_alloc;
struct nicvf_ptr nicvf;
#endif
struct set_loopback lbk;
};
int nicvf_set_real_num_queues(struct udevice *dev,
int tx_queues, int rx_queues);
int nicvf_open(struct udevice *dev);
void nicvf_stop(struct udevice *dev);
int nicvf_send_msg_to_pf(struct nicvf *vf, union nic_mbx *mbx);
void nicvf_update_stats(struct nicvf *nic);
void nic_handle_mbx_intr(struct nicpf *nic, int vf);
int bgx_poll_for_link(int node, int bgx_idx, int lmacid);
const u8 *bgx_get_lmac_mac(int node, int bgx_idx, int lmacid);
void bgx_set_lmac_mac(int node, int bgx_idx, int lmacid, const u8 *mac);
void bgx_lmac_rx_tx_enable(int node, int bgx_idx, int lmacid, bool enable);
void bgx_lmac_internal_loopback(int node, int bgx_idx,
int lmac_idx, bool enable);
static inline bool pass1_silicon(unsigned int revision, int model_id)
{
return ((revision < 8) && (model_id == 0x88));
}
static inline bool pass2_silicon(unsigned int revision, int model_id)
{
return ((revision >= 8) && (model_id == 0x88));
}
#endif /* NIC_H */
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