| /* QLogic qede NIC Driver |
| * Copyright (c) 2015-2017 QLogic Corporation |
| * |
| * This software is available to you under a choice of one of two |
| * licenses. You may choose to be licensed under the terms of the GNU |
| * General Public License (GPL) Version 2, available from the file |
| * COPYING in the main directory of this source tree, or the |
| * OpenIB.org BSD license below: |
| * |
| * Redistribution and use in source and binary forms, with or |
| * without modification, are permitted provided that the following |
| * conditions are met: |
| * |
| * - Redistributions of source code must retain the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and /or other materials |
| * provided with the distribution. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| #ifndef _QEDE_H_ |
| #define _QEDE_H_ |
| #include <linux/compiler.h> |
| #include <linux/version.h> |
| #include <linux/workqueue.h> |
| #include <linux/netdevice.h> |
| #include <linux/interrupt.h> |
| #include <linux/bitmap.h> |
| #include <linux/kernel.h> |
| #include <linux/mutex.h> |
| #include <linux/bpf.h> |
| #include <net/xdp.h> |
| #include <linux/qed/qede_rdma.h> |
| #include <linux/io.h> |
| #ifdef CONFIG_RFS_ACCEL |
| #include <linux/cpu_rmap.h> |
| #endif |
| #include <linux/qed/common_hsi.h> |
| #include <linux/qed/eth_common.h> |
| #include <linux/qed/qed_if.h> |
| #include <linux/qed/qed_chain.h> |
| #include <linux/qed/qed_eth_if.h> |
| |
| #define QEDE_MAJOR_VERSION 8 |
| #define QEDE_MINOR_VERSION 33 |
| #define QEDE_REVISION_VERSION 0 |
| #define QEDE_ENGINEERING_VERSION 20 |
| #define DRV_MODULE_VERSION __stringify(QEDE_MAJOR_VERSION) "." \ |
| __stringify(QEDE_MINOR_VERSION) "." \ |
| __stringify(QEDE_REVISION_VERSION) "." \ |
| __stringify(QEDE_ENGINEERING_VERSION) |
| |
| #define DRV_MODULE_SYM qede |
| |
| struct qede_stats_common { |
| u64 no_buff_discards; |
| u64 packet_too_big_discard; |
| u64 ttl0_discard; |
| u64 rx_ucast_bytes; |
| u64 rx_mcast_bytes; |
| u64 rx_bcast_bytes; |
| u64 rx_ucast_pkts; |
| u64 rx_mcast_pkts; |
| u64 rx_bcast_pkts; |
| u64 mftag_filter_discards; |
| u64 mac_filter_discards; |
| u64 gft_filter_drop; |
| u64 tx_ucast_bytes; |
| u64 tx_mcast_bytes; |
| u64 tx_bcast_bytes; |
| u64 tx_ucast_pkts; |
| u64 tx_mcast_pkts; |
| u64 tx_bcast_pkts; |
| u64 tx_err_drop_pkts; |
| u64 coalesced_pkts; |
| u64 coalesced_events; |
| u64 coalesced_aborts_num; |
| u64 non_coalesced_pkts; |
| u64 coalesced_bytes; |
| u64 link_change_count; |
| |
| /* port */ |
| u64 rx_64_byte_packets; |
| u64 rx_65_to_127_byte_packets; |
| u64 rx_128_to_255_byte_packets; |
| u64 rx_256_to_511_byte_packets; |
| u64 rx_512_to_1023_byte_packets; |
| u64 rx_1024_to_1518_byte_packets; |
| u64 rx_crc_errors; |
| u64 rx_mac_crtl_frames; |
| u64 rx_pause_frames; |
| u64 rx_pfc_frames; |
| u64 rx_align_errors; |
| u64 rx_carrier_errors; |
| u64 rx_oversize_packets; |
| u64 rx_jabbers; |
| u64 rx_undersize_packets; |
| u64 rx_fragments; |
| u64 tx_64_byte_packets; |
| u64 tx_65_to_127_byte_packets; |
| u64 tx_128_to_255_byte_packets; |
| u64 tx_256_to_511_byte_packets; |
| u64 tx_512_to_1023_byte_packets; |
| u64 tx_1024_to_1518_byte_packets; |
| u64 tx_pause_frames; |
| u64 tx_pfc_frames; |
| u64 brb_truncates; |
| u64 brb_discards; |
| u64 tx_mac_ctrl_frames; |
| }; |
| |
| struct qede_stats_bb { |
| u64 rx_1519_to_1522_byte_packets; |
| u64 rx_1519_to_2047_byte_packets; |
| u64 rx_2048_to_4095_byte_packets; |
| u64 rx_4096_to_9216_byte_packets; |
| u64 rx_9217_to_16383_byte_packets; |
| u64 tx_1519_to_2047_byte_packets; |
| u64 tx_2048_to_4095_byte_packets; |
| u64 tx_4096_to_9216_byte_packets; |
| u64 tx_9217_to_16383_byte_packets; |
| u64 tx_lpi_entry_count; |
| u64 tx_total_collisions; |
| }; |
| |
| struct qede_stats_ah { |
| u64 rx_1519_to_max_byte_packets; |
| u64 tx_1519_to_max_byte_packets; |
| }; |
| |
| struct qede_stats { |
| struct qede_stats_common common; |
| |
| union { |
| struct qede_stats_bb bb; |
| struct qede_stats_ah ah; |
| }; |
| }; |
| |
| struct qede_vlan { |
| struct list_head list; |
| u16 vid; |
| bool configured; |
| }; |
| |
| struct qede_rdma_dev { |
| struct qedr_dev *qedr_dev; |
| struct list_head entry; |
| struct list_head rdma_event_list; |
| struct workqueue_struct *rdma_wq; |
| }; |
| |
| struct qede_ptp; |
| |
| #define QEDE_RFS_MAX_FLTR 256 |
| |
| struct qede_dev { |
| struct qed_dev *cdev; |
| struct net_device *ndev; |
| struct pci_dev *pdev; |
| |
| u32 dp_module; |
| u8 dp_level; |
| |
| unsigned long flags; |
| #define QEDE_FLAG_IS_VF BIT(0) |
| #define IS_VF(edev) (!!((edev)->flags & QEDE_FLAG_IS_VF)) |
| #define QEDE_TX_TIMESTAMPING_EN BIT(1) |
| #define QEDE_FLAGS_PTP_TX_IN_PRORGESS BIT(2) |
| |
| const struct qed_eth_ops *ops; |
| struct qede_ptp *ptp; |
| |
| struct qed_dev_eth_info dev_info; |
| #define QEDE_MAX_RSS_CNT(edev) ((edev)->dev_info.num_queues) |
| #define QEDE_MAX_TSS_CNT(edev) ((edev)->dev_info.num_queues) |
| #define QEDE_IS_BB(edev) \ |
| ((edev)->dev_info.common.dev_type == QED_DEV_TYPE_BB) |
| #define QEDE_IS_AH(edev) \ |
| ((edev)->dev_info.common.dev_type == QED_DEV_TYPE_AH) |
| |
| struct qede_fastpath *fp_array; |
| u8 req_num_tx; |
| u8 fp_num_tx; |
| u8 req_num_rx; |
| u8 fp_num_rx; |
| u16 req_queues; |
| u16 num_queues; |
| #define QEDE_QUEUE_CNT(edev) ((edev)->num_queues) |
| #define QEDE_RSS_COUNT(edev) ((edev)->num_queues - (edev)->fp_num_tx) |
| #define QEDE_RX_QUEUE_IDX(edev, i) (i) |
| #define QEDE_TSS_COUNT(edev) ((edev)->num_queues - (edev)->fp_num_rx) |
| |
| struct qed_int_info int_info; |
| |
| /* Smaller private varaiant of the RTNL lock */ |
| struct mutex qede_lock; |
| u32 state; /* Protected by qede_lock */ |
| u16 rx_buf_size; |
| u32 rx_copybreak; |
| |
| /* L2 header size + 2*VLANs (8 bytes) + LLC SNAP (8 bytes) */ |
| #define ETH_OVERHEAD (ETH_HLEN + 8 + 8) |
| /* Max supported alignment is 256 (8 shift) |
| * minimal alignment shift 6 is optimal for 57xxx HW performance |
| */ |
| #define QEDE_RX_ALIGN_SHIFT max(6, min(8, L1_CACHE_SHIFT)) |
| /* We assume skb_build() uses sizeof(struct skb_shared_info) bytes |
| * at the end of skb->data, to avoid wasting a full cache line. |
| * This reduces memory use (skb->truesize). |
| */ |
| #define QEDE_FW_RX_ALIGN_END \ |
| max_t(u64, 1UL << QEDE_RX_ALIGN_SHIFT, \ |
| SKB_DATA_ALIGN(sizeof(struct skb_shared_info))) |
| |
| struct qede_stats stats; |
| #define QEDE_RSS_INDIR_INITED BIT(0) |
| #define QEDE_RSS_KEY_INITED BIT(1) |
| #define QEDE_RSS_CAPS_INITED BIT(2) |
| u32 rss_params_inited; /* bit-field to track initialized rss params */ |
| u16 rss_ind_table[128]; |
| u32 rss_key[10]; |
| u8 rss_caps; |
| |
| u16 q_num_rx_buffers; /* Must be a power of two */ |
| u16 q_num_tx_buffers; /* Must be a power of two */ |
| |
| bool gro_disable; |
| struct list_head vlan_list; |
| u16 configured_vlans; |
| u16 non_configured_vlans; |
| bool accept_any_vlan; |
| struct delayed_work sp_task; |
| unsigned long sp_flags; |
| u16 vxlan_dst_port; |
| u16 geneve_dst_port; |
| |
| struct qede_arfs *arfs; |
| bool wol_enabled; |
| |
| struct qede_rdma_dev rdma_info; |
| |
| struct bpf_prog *xdp_prog; |
| }; |
| |
| enum QEDE_STATE { |
| QEDE_STATE_CLOSED, |
| QEDE_STATE_OPEN, |
| }; |
| |
| #define HILO_U64(hi, lo) ((((u64)(hi)) << 32) + (lo)) |
| |
| #define MAX_NUM_TC 8 |
| #define MAX_NUM_PRI 8 |
| |
| /* The driver supports the new build_skb() API: |
| * RX ring buffer contains pointer to kmalloc() data only, |
| * skb are built only after the frame was DMA-ed. |
| */ |
| struct sw_rx_data { |
| struct page *data; |
| dma_addr_t mapping; |
| unsigned int page_offset; |
| }; |
| |
| enum qede_agg_state { |
| QEDE_AGG_STATE_NONE = 0, |
| QEDE_AGG_STATE_START = 1, |
| QEDE_AGG_STATE_ERROR = 2 |
| }; |
| |
| struct qede_agg_info { |
| /* rx_buf is a data buffer that can be placed / consumed from rx bd |
| * chain. It has two purposes: We will preallocate the data buffer |
| * for each aggregation when we open the interface and will place this |
| * buffer on the rx-bd-ring when we receive TPA_START. We don't want |
| * to be in a state where allocation fails, as we can't reuse the |
| * consumer buffer in the rx-chain since FW may still be writing to it |
| * (since header needs to be modified for TPA). |
| * The second purpose is to keep a pointer to the bd buffer during |
| * aggregation. |
| */ |
| struct sw_rx_data buffer; |
| struct sk_buff *skb; |
| |
| /* We need some structs from the start cookie until termination */ |
| u16 vlan_tag; |
| |
| bool tpa_start_fail; |
| u8 state; |
| u8 frag_id; |
| |
| u8 tunnel_type; |
| }; |
| |
| struct qede_rx_queue { |
| __le16 *hw_cons_ptr; |
| void __iomem *hw_rxq_prod_addr; |
| |
| /* Required for the allocation of replacement buffers */ |
| struct device *dev; |
| |
| struct bpf_prog *xdp_prog; |
| |
| u16 sw_rx_cons; |
| u16 sw_rx_prod; |
| |
| u16 filled_buffers; |
| u8 data_direction; |
| u8 rxq_id; |
| |
| /* Used once per each NAPI run */ |
| u16 num_rx_buffers; |
| |
| u16 rx_headroom; |
| |
| u32 rx_buf_size; |
| u32 rx_buf_seg_size; |
| |
| struct sw_rx_data *sw_rx_ring; |
| struct qed_chain rx_bd_ring; |
| struct qed_chain rx_comp_ring ____cacheline_aligned; |
| |
| /* GRO */ |
| struct qede_agg_info tpa_info[ETH_TPA_MAX_AGGS_NUM]; |
| |
| /* Used once per each NAPI run */ |
| u64 rcv_pkts; |
| |
| u64 rx_hw_errors; |
| u64 rx_alloc_errors; |
| u64 rx_ip_frags; |
| |
| u64 xdp_no_pass; |
| |
| void *handle; |
| struct xdp_rxq_info xdp_rxq; |
| }; |
| |
| union db_prod { |
| struct eth_db_data data; |
| u32 raw; |
| }; |
| |
| struct sw_tx_bd { |
| struct sk_buff *skb; |
| u8 flags; |
| /* Set on the first BD descriptor when there is a split BD */ |
| #define QEDE_TSO_SPLIT_BD BIT(0) |
| }; |
| |
| struct sw_tx_xdp { |
| struct page *page; |
| dma_addr_t mapping; |
| }; |
| |
| struct qede_tx_queue { |
| u8 is_xdp; |
| bool is_legacy; |
| u16 sw_tx_cons; |
| u16 sw_tx_prod; |
| u16 num_tx_buffers; /* Slowpath only */ |
| |
| u64 xmit_pkts; |
| u64 stopped_cnt; |
| |
| __le16 *hw_cons_ptr; |
| |
| /* Needed for the mapping of packets */ |
| struct device *dev; |
| |
| void __iomem *doorbell_addr; |
| union db_prod tx_db; |
| int index; /* Slowpath only */ |
| #define QEDE_TXQ_XDP_TO_IDX(edev, txq) ((txq)->index - \ |
| QEDE_MAX_TSS_CNT(edev)) |
| #define QEDE_TXQ_IDX_TO_XDP(edev, idx) ((idx) + QEDE_MAX_TSS_CNT(edev)) |
| |
| /* Regular Tx requires skb + metadata for release purpose, |
| * while XDP requires the pages and the mapped address. |
| */ |
| union { |
| struct sw_tx_bd *skbs; |
| struct sw_tx_xdp *xdp; |
| } sw_tx_ring; |
| |
| struct qed_chain tx_pbl; |
| |
| /* Slowpath; Should be kept in end [unless missing padding] */ |
| void *handle; |
| }; |
| |
| #define BD_UNMAP_ADDR(bd) HILO_U64(le32_to_cpu((bd)->addr.hi), \ |
| le32_to_cpu((bd)->addr.lo)) |
| #define BD_SET_UNMAP_ADDR_LEN(bd, maddr, len) \ |
| do { \ |
| (bd)->addr.hi = cpu_to_le32(upper_32_bits(maddr)); \ |
| (bd)->addr.lo = cpu_to_le32(lower_32_bits(maddr)); \ |
| (bd)->nbytes = cpu_to_le16(len); \ |
| } while (0) |
| #define BD_UNMAP_LEN(bd) (le16_to_cpu((bd)->nbytes)) |
| |
| struct qede_fastpath { |
| struct qede_dev *edev; |
| #define QEDE_FASTPATH_TX BIT(0) |
| #define QEDE_FASTPATH_RX BIT(1) |
| #define QEDE_FASTPATH_XDP BIT(2) |
| #define QEDE_FASTPATH_COMBINED (QEDE_FASTPATH_TX | QEDE_FASTPATH_RX) |
| u8 type; |
| u8 id; |
| u8 xdp_xmit; |
| struct napi_struct napi; |
| struct qed_sb_info *sb_info; |
| struct qede_rx_queue *rxq; |
| struct qede_tx_queue *txq; |
| struct qede_tx_queue *xdp_tx; |
| |
| #define VEC_NAME_SIZE (sizeof(((struct net_device *)0)->name) + 8) |
| char name[VEC_NAME_SIZE]; |
| }; |
| |
| /* Debug print definitions */ |
| #define DP_NAME(edev) ((edev)->ndev->name) |
| |
| #define XMIT_PLAIN 0 |
| #define XMIT_L4_CSUM BIT(0) |
| #define XMIT_LSO BIT(1) |
| #define XMIT_ENC BIT(2) |
| #define XMIT_ENC_GSO_L4_CSUM BIT(3) |
| |
| #define QEDE_CSUM_ERROR BIT(0) |
| #define QEDE_CSUM_UNNECESSARY BIT(1) |
| #define QEDE_TUNN_CSUM_UNNECESSARY BIT(2) |
| |
| #define QEDE_SP_RX_MODE 1 |
| |
| #ifdef CONFIG_RFS_ACCEL |
| int qede_rx_flow_steer(struct net_device *dev, const struct sk_buff *skb, |
| u16 rxq_index, u32 flow_id); |
| #define QEDE_SP_ARFS_CONFIG 4 |
| #define QEDE_SP_TASK_POLL_DELAY (5 * HZ) |
| #endif |
| |
| void qede_process_arfs_filters(struct qede_dev *edev, bool free_fltr); |
| void qede_poll_for_freeing_arfs_filters(struct qede_dev *edev); |
| void qede_arfs_filter_op(void *dev, void *filter, u8 fw_rc); |
| void qede_free_arfs(struct qede_dev *edev); |
| int qede_alloc_arfs(struct qede_dev *edev); |
| int qede_add_cls_rule(struct qede_dev *edev, struct ethtool_rxnfc *info); |
| int qede_del_cls_rule(struct qede_dev *edev, struct ethtool_rxnfc *info); |
| int qede_get_cls_rule_entry(struct qede_dev *edev, struct ethtool_rxnfc *cmd); |
| int qede_get_cls_rule_all(struct qede_dev *edev, struct ethtool_rxnfc *info, |
| u32 *rule_locs); |
| int qede_get_arfs_filter_count(struct qede_dev *edev); |
| |
| struct qede_reload_args { |
| void (*func)(struct qede_dev *edev, struct qede_reload_args *args); |
| union { |
| netdev_features_t features; |
| struct bpf_prog *new_prog; |
| u16 mtu; |
| } u; |
| }; |
| |
| /* Datapath functions definition */ |
| netdev_tx_t qede_start_xmit(struct sk_buff *skb, struct net_device *ndev); |
| netdev_features_t qede_features_check(struct sk_buff *skb, |
| struct net_device *dev, |
| netdev_features_t features); |
| void qede_tx_log_print(struct qede_dev *edev, struct qede_fastpath *fp); |
| int qede_alloc_rx_buffer(struct qede_rx_queue *rxq, bool allow_lazy); |
| int qede_free_tx_pkt(struct qede_dev *edev, |
| struct qede_tx_queue *txq, int *len); |
| int qede_poll(struct napi_struct *napi, int budget); |
| irqreturn_t qede_msix_fp_int(int irq, void *fp_cookie); |
| |
| /* Filtering function definitions */ |
| void qede_force_mac(void *dev, u8 *mac, bool forced); |
| void qede_udp_ports_update(void *dev, u16 vxlan_port, u16 geneve_port); |
| int qede_set_mac_addr(struct net_device *ndev, void *p); |
| |
| int qede_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid); |
| int qede_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid); |
| void qede_vlan_mark_nonconfigured(struct qede_dev *edev); |
| int qede_configure_vlan_filters(struct qede_dev *edev); |
| |
| netdev_features_t qede_fix_features(struct net_device *dev, |
| netdev_features_t features); |
| int qede_set_features(struct net_device *dev, netdev_features_t features); |
| void qede_set_rx_mode(struct net_device *ndev); |
| void qede_config_rx_mode(struct net_device *ndev); |
| void qede_fill_rss_params(struct qede_dev *edev, |
| struct qed_update_vport_rss_params *rss, u8 *update); |
| |
| void qede_udp_tunnel_add(struct net_device *dev, struct udp_tunnel_info *ti); |
| void qede_udp_tunnel_del(struct net_device *dev, struct udp_tunnel_info *ti); |
| |
| int qede_xdp(struct net_device *dev, struct netdev_bpf *xdp); |
| |
| #ifdef CONFIG_DCB |
| void qede_set_dcbnl_ops(struct net_device *ndev); |
| #endif |
| |
| void qede_config_debug(uint debug, u32 *p_dp_module, u8 *p_dp_level); |
| void qede_set_ethtool_ops(struct net_device *netdev); |
| void qede_reload(struct qede_dev *edev, |
| struct qede_reload_args *args, bool is_locked); |
| int qede_change_mtu(struct net_device *dev, int new_mtu); |
| void qede_fill_by_demand_stats(struct qede_dev *edev); |
| void __qede_lock(struct qede_dev *edev); |
| void __qede_unlock(struct qede_dev *edev); |
| bool qede_has_rx_work(struct qede_rx_queue *rxq); |
| int qede_txq_has_work(struct qede_tx_queue *txq); |
| void qede_recycle_rx_bd_ring(struct qede_rx_queue *rxq, u8 count); |
| void qede_update_rx_prod(struct qede_dev *edev, struct qede_rx_queue *rxq); |
| |
| #define RX_RING_SIZE_POW 13 |
| #define RX_RING_SIZE ((u16)BIT(RX_RING_SIZE_POW)) |
| #define NUM_RX_BDS_MAX (RX_RING_SIZE - 1) |
| #define NUM_RX_BDS_MIN 128 |
| #define NUM_RX_BDS_DEF ((u16)BIT(10) - 1) |
| |
| #define TX_RING_SIZE_POW 13 |
| #define TX_RING_SIZE ((u16)BIT(TX_RING_SIZE_POW)) |
| #define NUM_TX_BDS_MAX (TX_RING_SIZE - 1) |
| #define NUM_TX_BDS_MIN 128 |
| #define NUM_TX_BDS_DEF NUM_TX_BDS_MAX |
| |
| #define QEDE_MIN_PKT_LEN 64 |
| #define QEDE_RX_HDR_SIZE 256 |
| #define QEDE_MAX_JUMBO_PACKET_SIZE 9600 |
| #define for_each_queue(i) for (i = 0; i < edev->num_queues; i++) |
| |
| #endif /* _QEDE_H_ */ |