| /* |
| * Copyright (c) 2014-2015 Hisilicon Limited. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| */ |
| |
| #ifndef __HNAE_H |
| #define __HNAE_H |
| |
| /* Names used in this framework: |
| * ae handle (handle): |
| * a set of queues provided by AE |
| * ring buffer queue (rbq): |
| * the channel between upper layer and the AE, can do tx and rx |
| * ring: |
| * a tx or rx channel within a rbq |
| * ring description (desc): |
| * an element in the ring with packet information |
| * buffer: |
| * a memory region referred by desc with the full packet payload |
| * |
| * "num" means a static number set as a parameter, "count" mean a dynamic |
| * number set while running |
| * "cb" means control block |
| */ |
| |
| #include <linux/delay.h> |
| #include <linux/device.h> |
| #include <linux/module.h> |
| #include <linux/netdevice.h> |
| #include <linux/notifier.h> |
| #include <linux/phy.h> |
| #include <linux/types.h> |
| |
| #define HNAE_DRIVER_VERSION "2.0" |
| #define HNAE_DRIVER_NAME "hns" |
| #define HNAE_COPYRIGHT "Copyright(c) 2015 Huawei Corporation." |
| #define HNAE_DRIVER_STRING "Hisilicon Network Subsystem Driver" |
| #define HNAE_DEFAULT_DEVICE_DESCR "Hisilicon Network Subsystem" |
| |
| #ifdef DEBUG |
| |
| #ifndef assert |
| #define assert(expr) \ |
| do { \ |
| if (!(expr)) { \ |
| pr_err("Assertion failed! %s, %s, %s, line %d\n", \ |
| #expr, __FILE__, __func__, __LINE__); \ |
| } \ |
| } while (0) |
| #endif |
| |
| #else |
| |
| #ifndef assert |
| #define assert(expr) |
| #endif |
| |
| #endif |
| |
| #define AE_VERSION_1 ('6' << 16 | '6' << 8 | '0') |
| #define AE_VERSION_2 ('1' << 24 | '6' << 16 | '1' << 8 | '0') |
| #define AE_IS_VER1(ver) ((ver) == AE_VERSION_1) |
| #define AE_NAME_SIZE 16 |
| |
| /* some said the RX and TX RCB format should not be the same in the future. But |
| * it is the same now... |
| */ |
| #define RCB_REG_BASEADDR_L 0x00 /* P660 support only 32bit accessing */ |
| #define RCB_REG_BASEADDR_H 0x04 |
| #define RCB_REG_BD_NUM 0x08 |
| #define RCB_REG_BD_LEN 0x0C |
| #define RCB_REG_PKTLINE 0x10 |
| #define RCB_REG_TAIL 0x18 |
| #define RCB_REG_HEAD 0x1C |
| #define RCB_REG_FBDNUM 0x20 |
| #define RCB_REG_OFFSET 0x24 /* pkt num to be handled */ |
| #define RCB_REG_PKTNUM_RECORD 0x2C /* total pkt received */ |
| |
| #define HNS_RX_HEAD_SIZE 256 |
| |
| #define HNAE_AE_REGISTER 0x1 |
| |
| #define RCB_RING_NAME_LEN 16 |
| |
| enum hnae_led_state { |
| HNAE_LED_INACTIVE, |
| HNAE_LED_ACTIVE, |
| HNAE_LED_ON, |
| HNAE_LED_OFF |
| }; |
| |
| #define HNS_RX_FLAG_VLAN_PRESENT 0x1 |
| #define HNS_RX_FLAG_L3ID_IPV4 0x0 |
| #define HNS_RX_FLAG_L3ID_IPV6 0x1 |
| #define HNS_RX_FLAG_L4ID_UDP 0x0 |
| #define HNS_RX_FLAG_L4ID_TCP 0x1 |
| |
| #define HNS_TXD_ASID_S 0 |
| #define HNS_TXD_ASID_M (0xff << HNS_TXD_ASID_S) |
| #define HNS_TXD_BUFNUM_S 8 |
| #define HNS_TXD_BUFNUM_M (0x3 << HNS_TXD_BUFNUM_S) |
| #define HNS_TXD_PORTID_S 10 |
| #define HNS_TXD_PORTID_M (0x7 << HNS_TXD_PORTID_S) |
| |
| #define HNS_TXD_RA_B 8 |
| #define HNS_TXD_RI_B 9 |
| #define HNS_TXD_L4CS_B 10 |
| #define HNS_TXD_L3CS_B 11 |
| #define HNS_TXD_FE_B 12 |
| #define HNS_TXD_VLD_B 13 |
| #define HNS_TXD_IPOFFSET_S 14 |
| #define HNS_TXD_IPOFFSET_M (0xff << HNS_TXD_IPOFFSET_S) |
| |
| #define HNS_RXD_IPOFFSET_S 0 |
| #define HNS_RXD_IPOFFSET_M (0xff << HNS_TXD_IPOFFSET_S) |
| #define HNS_RXD_BUFNUM_S 8 |
| #define HNS_RXD_BUFNUM_M (0x3 << HNS_RXD_BUFNUM_S) |
| #define HNS_RXD_PORTID_S 10 |
| #define HNS_RXD_PORTID_M (0x7 << HNS_RXD_PORTID_S) |
| #define HNS_RXD_DMAC_S 13 |
| #define HNS_RXD_DMAC_M (0x3 << HNS_RXD_DMAC_S) |
| #define HNS_RXD_VLAN_S 15 |
| #define HNS_RXD_VLAN_M (0x3 << HNS_RXD_VLAN_S) |
| #define HNS_RXD_L3ID_S 17 |
| #define HNS_RXD_L3ID_M (0xf << HNS_RXD_L3ID_S) |
| #define HNS_RXD_L4ID_S 21 |
| #define HNS_RXD_L4ID_M (0xf << HNS_RXD_L4ID_S) |
| #define HNS_RXD_FE_B 25 |
| #define HNS_RXD_FRAG_B 26 |
| #define HNS_RXD_VLD_B 27 |
| #define HNS_RXD_L2E_B 28 |
| #define HNS_RXD_L3E_B 29 |
| #define HNS_RXD_L4E_B 30 |
| #define HNS_RXD_DROP_B 31 |
| |
| #define HNS_RXD_VLANID_S 8 |
| #define HNS_RXD_VLANID_M (0xfff << HNS_RXD_VLANID_S) |
| #define HNS_RXD_CFI_B 20 |
| #define HNS_RXD_PRI_S 21 |
| #define HNS_RXD_PRI_M (0x7 << HNS_RXD_PRI_S) |
| #define HNS_RXD_ASID_S 24 |
| #define HNS_RXD_ASID_M (0xff << HNS_RXD_ASID_S) |
| |
| #define HNSV2_TXD_BUFNUM_S 0 |
| #define HNSV2_TXD_BUFNUM_M (0x7 << HNSV2_TXD_BUFNUM_S) |
| #define HNSV2_TXD_PORTID_S 4 |
| #define HNSV2_TXD_PORTID_M (0X7 << HNSV2_TXD_PORTID_S) |
| #define HNSV2_TXD_RI_B 1 |
| #define HNSV2_TXD_L4CS_B 2 |
| #define HNSV2_TXD_L3CS_B 3 |
| #define HNSV2_TXD_FE_B 4 |
| #define HNSV2_TXD_VLD_B 5 |
| |
| #define HNSV2_TXD_TSE_B 0 |
| #define HNSV2_TXD_VLAN_EN_B 1 |
| #define HNSV2_TXD_SNAP_B 2 |
| #define HNSV2_TXD_IPV6_B 3 |
| #define HNSV2_TXD_SCTP_B 4 |
| |
| /* hardware spec ring buffer format */ |
| struct __packed hnae_desc { |
| __le64 addr; |
| union { |
| struct { |
| union { |
| __le16 asid_bufnum_pid; |
| __le16 asid; |
| }; |
| __le16 send_size; |
| union { |
| __le32 flag_ipoffset; |
| struct { |
| __u8 bn_pid; |
| __u8 ra_ri_cs_fe_vld; |
| __u8 ip_offset; |
| __u8 tse_vlan_snap_v6_sctp_nth; |
| }; |
| }; |
| __le16 mss; |
| __u8 l4_len; |
| __u8 reserved1; |
| __le16 paylen; |
| __u8 vmid; |
| __u8 qid; |
| __le32 reserved2[2]; |
| } tx; |
| |
| struct { |
| __le32 ipoff_bnum_pid_flag; |
| __le16 pkt_len; |
| __le16 size; |
| union { |
| __le32 vlan_pri_asid; |
| struct { |
| __le16 asid; |
| __le16 vlan_cfi_pri; |
| }; |
| }; |
| __le32 rss_hash; |
| __le32 reserved_1[2]; |
| } rx; |
| }; |
| }; |
| |
| struct hnae_desc_cb { |
| dma_addr_t dma; /* dma address of this desc */ |
| void *buf; /* cpu addr for a desc */ |
| |
| /* priv data for the desc, e.g. skb when use with ip stack*/ |
| void *priv; |
| u16 page_offset; |
| u16 reuse_flag; |
| |
| u16 length; /* length of the buffer */ |
| |
| /* desc type, used by the ring user to mark the type of the priv data */ |
| u16 type; |
| }; |
| |
| #define setflags(flags, bits) ((flags) |= (bits)) |
| #define unsetflags(flags, bits) ((flags) &= ~(bits)) |
| |
| /* hnae_ring->flags fields */ |
| #define RINGF_DIR 0x1 /* TX or RX ring, set if TX */ |
| #define is_tx_ring(ring) ((ring)->flags & RINGF_DIR) |
| #define is_rx_ring(ring) (!is_tx_ring(ring)) |
| #define ring_to_dma_dir(ring) (is_tx_ring(ring) ? \ |
| DMA_TO_DEVICE : DMA_FROM_DEVICE) |
| |
| struct ring_stats { |
| u64 io_err_cnt; |
| u64 sw_err_cnt; |
| u64 seg_pkt_cnt; |
| union { |
| struct { |
| u64 tx_pkts; |
| u64 tx_bytes; |
| u64 tx_err_cnt; |
| u64 restart_queue; |
| u64 tx_busy; |
| }; |
| struct { |
| u64 rx_pkts; |
| u64 rx_bytes; |
| u64 rx_err_cnt; |
| u64 reuse_pg_cnt; |
| u64 err_pkt_len; |
| u64 non_vld_descs; |
| u64 err_bd_num; |
| u64 l2_err; |
| u64 l3l4_csum_err; |
| }; |
| }; |
| }; |
| |
| struct hnae_queue; |
| |
| struct hnae_ring { |
| u8 __iomem *io_base; /* base io address for the ring */ |
| struct hnae_desc *desc; /* dma map address space */ |
| struct hnae_desc_cb *desc_cb; |
| struct hnae_queue *q; |
| int irq; |
| char ring_name[RCB_RING_NAME_LEN]; |
| |
| /* statistic */ |
| struct ring_stats stats; |
| |
| dma_addr_t desc_dma_addr; |
| u32 buf_size; /* size for hnae_desc->addr, preset by AE */ |
| u16 desc_num; /* total number of desc */ |
| u16 max_desc_num_per_pkt; |
| u16 max_raw_data_sz_per_desc; |
| u16 max_pkt_size; |
| int next_to_use; /* idx of next spare desc */ |
| |
| /* idx of lastest sent desc, the ring is empty when equal to |
| * next_to_use |
| */ |
| int next_to_clean; |
| |
| int flags; /* ring attribute */ |
| int irq_init_flag; |
| }; |
| |
| #define ring_ptr_move_fw(ring, p) \ |
| ((ring)->p = ((ring)->p + 1) % (ring)->desc_num) |
| #define ring_ptr_move_bw(ring, p) \ |
| ((ring)->p = ((ring)->p - 1 + (ring)->desc_num) % (ring)->desc_num) |
| |
| enum hns_desc_type { |
| DESC_TYPE_SKB, |
| DESC_TYPE_PAGE, |
| }; |
| |
| #define assert_is_ring_idx(ring, idx) \ |
| assert((idx) >= 0 && (idx) < (ring)->desc_num) |
| |
| /* the distance between [begin, end) in a ring buffer |
| * note: there is a unuse slot between the begin and the end |
| */ |
| static inline int ring_dist(struct hnae_ring *ring, int begin, int end) |
| { |
| assert_is_ring_idx(ring, begin); |
| assert_is_ring_idx(ring, end); |
| |
| return (end - begin + ring->desc_num) % ring->desc_num; |
| } |
| |
| static inline int ring_space(struct hnae_ring *ring) |
| { |
| return ring->desc_num - |
| ring_dist(ring, ring->next_to_clean, ring->next_to_use) - 1; |
| } |
| |
| static inline int is_ring_empty(struct hnae_ring *ring) |
| { |
| assert_is_ring_idx(ring, ring->next_to_use); |
| assert_is_ring_idx(ring, ring->next_to_clean); |
| |
| return ring->next_to_use == ring->next_to_clean; |
| } |
| |
| #define hnae_buf_size(_ring) ((_ring)->buf_size) |
| #define hnae_page_order(_ring) (get_order(hnae_buf_size(_ring))) |
| #define hnae_page_size(_ring) (PAGE_SIZE << hnae_page_order(_ring)) |
| |
| struct hnae_handle; |
| |
| /* allocate and dma map space for hnae desc */ |
| struct hnae_buf_ops { |
| int (*alloc_buffer)(struct hnae_ring *ring, struct hnae_desc_cb *cb); |
| void (*free_buffer)(struct hnae_ring *ring, struct hnae_desc_cb *cb); |
| int (*map_buffer)(struct hnae_ring *ring, struct hnae_desc_cb *cb); |
| void (*unmap_buffer)(struct hnae_ring *ring, struct hnae_desc_cb *cb); |
| }; |
| |
| struct hnae_queue { |
| void __iomem *io_base; |
| phys_addr_t phy_base; |
| struct hnae_ae_dev *dev; /* the device who use this queue */ |
| struct hnae_ring rx_ring ____cacheline_internodealigned_in_smp; |
| struct hnae_ring tx_ring ____cacheline_internodealigned_in_smp; |
| struct hnae_handle *handle; |
| }; |
| |
| /*hnae loop mode*/ |
| enum hnae_loop { |
| MAC_INTERNALLOOP_MAC = 0, |
| MAC_INTERNALLOOP_SERDES, |
| MAC_INTERNALLOOP_PHY, |
| MAC_LOOP_NONE, |
| }; |
| |
| /*hnae port type*/ |
| enum hnae_port_type { |
| HNAE_PORT_SERVICE = 0, |
| HNAE_PORT_DEBUG |
| }; |
| |
| /* This struct defines the operation on the handle. |
| * |
| * get_handle(): (mandatory) |
| * Get a handle from AE according to its name and options. |
| * the AE driver should manage the space used by handle and its queues while |
| * the HNAE framework will allocate desc and desc_cb for all rings in the |
| * queues. |
| * put_handle(): |
| * Release the handle. |
| * start(): |
| * Enable the hardware, include all queues |
| * stop(): |
| * Disable the hardware |
| * set_opts(): (mandatory) |
| * Set options to the AE |
| * get_opts(): (mandatory) |
| * Get options from the AE |
| * get_status(): |
| * Get the carrier state of the back channel of the handle, 1 for ok, 0 for |
| * non-ok |
| * toggle_ring_irq(): (mandatory) |
| * Set the ring irq to be enabled(0) or disable(1) |
| * toggle_queue_status(): (mandatory) |
| * Set the queue to be enabled(1) or disable(0), this will not change the |
| * ring irq state |
| * adjust_link() |
| * adjust link status |
| * set_loopback() |
| * set loopback |
| * get_ring_bdnum_limit() |
| * get ring bd number limit |
| * get_pauseparam() |
| * get tx and rx of pause frame use |
| * set_autoneg() |
| * set auto autonegotiation of pause frame use |
| * get_autoneg() |
| * get auto autonegotiation of pause frame use |
| * set_pauseparam() |
| * set tx and rx of pause frame use |
| * get_coalesce_usecs() |
| * get usecs to delay a TX interrupt after a packet is sent |
| * get_rx_max_coalesced_frames() |
| * get Maximum number of packets to be sent before a TX interrupt. |
| * set_coalesce_usecs() |
| * set usecs to delay a TX interrupt after a packet is sent |
| * set_coalesce_frames() |
| * set Maximum number of packets to be sent before a TX interrupt. |
| * get_ringnum() |
| * get RX/TX ring number |
| * get_max_ringnum() |
| * get RX/TX ring maximum number |
| * get_mac_addr() |
| * get mac address |
| * set_mac_addr() |
| * set mac address |
| * set_mc_addr() |
| * set multicast mode |
| * set_mtu() |
| * set mtu |
| * update_stats() |
| * update Old network device statistics |
| * get_ethtool_stats() |
| * get ethtool network device statistics |
| * get_strings() |
| * get a set of strings that describe the requested objects |
| * get_sset_count() |
| * get number of strings that @get_strings will write |
| * update_led_status() |
| * update the led status |
| * set_led_id() |
| * set led id |
| * get_regs() |
| * get regs dump |
| * get_regs_len() |
| * get the len of the regs dump |
| */ |
| struct hnae_ae_ops { |
| struct hnae_handle *(*get_handle)(struct hnae_ae_dev *dev, |
| u32 port_id); |
| void (*put_handle)(struct hnae_handle *handle); |
| void (*init_queue)(struct hnae_queue *q); |
| void (*fini_queue)(struct hnae_queue *q); |
| int (*start)(struct hnae_handle *handle); |
| void (*stop)(struct hnae_handle *handle); |
| void (*reset)(struct hnae_handle *handle); |
| int (*set_opts)(struct hnae_handle *handle, int type, void *opts); |
| int (*get_opts)(struct hnae_handle *handle, int type, void **opts); |
| int (*get_status)(struct hnae_handle *handle); |
| int (*get_info)(struct hnae_handle *handle, |
| u8 *auto_neg, u16 *speed, u8 *duplex); |
| void (*toggle_ring_irq)(struct hnae_ring *ring, u32 val); |
| void (*toggle_queue_status)(struct hnae_queue *queue, u32 val); |
| void (*adjust_link)(struct hnae_handle *handle, int speed, int duplex); |
| int (*set_loopback)(struct hnae_handle *handle, |
| enum hnae_loop loop_mode, int en); |
| void (*get_ring_bdnum_limit)(struct hnae_queue *queue, |
| u32 *uplimit); |
| void (*get_pauseparam)(struct hnae_handle *handle, |
| u32 *auto_neg, u32 *rx_en, u32 *tx_en); |
| int (*set_autoneg)(struct hnae_handle *handle, u8 enable); |
| int (*get_autoneg)(struct hnae_handle *handle); |
| int (*set_pauseparam)(struct hnae_handle *handle, |
| u32 auto_neg, u32 rx_en, u32 tx_en); |
| void (*get_coalesce_usecs)(struct hnae_handle *handle, |
| u32 *tx_usecs, u32 *rx_usecs); |
| void (*get_rx_max_coalesced_frames)(struct hnae_handle *handle, |
| u32 *tx_frames, u32 *rx_frames); |
| void (*set_coalesce_usecs)(struct hnae_handle *handle, u32 timeout); |
| int (*set_coalesce_frames)(struct hnae_handle *handle, |
| u32 coalesce_frames); |
| void (*set_promisc_mode)(struct hnae_handle *handle, u32 en); |
| int (*get_mac_addr)(struct hnae_handle *handle, void **p); |
| int (*set_mac_addr)(struct hnae_handle *handle, void *p); |
| int (*set_mc_addr)(struct hnae_handle *handle, void *addr); |
| int (*set_mtu)(struct hnae_handle *handle, int new_mtu); |
| void (*set_tso_stats)(struct hnae_handle *handle, int enable); |
| void (*update_stats)(struct hnae_handle *handle, |
| struct net_device_stats *net_stats); |
| void (*get_stats)(struct hnae_handle *handle, u64 *data); |
| void (*get_strings)(struct hnae_handle *handle, |
| u32 stringset, u8 *data); |
| int (*get_sset_count)(struct hnae_handle *handle, int stringset); |
| void (*update_led_status)(struct hnae_handle *handle); |
| int (*set_led_id)(struct hnae_handle *handle, |
| enum hnae_led_state status); |
| void (*get_regs)(struct hnae_handle *handle, void *data); |
| int (*get_regs_len)(struct hnae_handle *handle); |
| u32 (*get_rss_key_size)(struct hnae_handle *handle); |
| u32 (*get_rss_indir_size)(struct hnae_handle *handle); |
| int (*get_rss)(struct hnae_handle *handle, u32 *indir, u8 *key, |
| u8 *hfunc); |
| int (*set_rss)(struct hnae_handle *handle, const u32 *indir, |
| const u8 *key, const u8 hfunc); |
| }; |
| |
| struct hnae_ae_dev { |
| struct device cls_dev; /* the class dev */ |
| struct device *dev; /* the presented dev */ |
| struct hnae_ae_ops *ops; |
| struct list_head node; |
| struct module *owner; /* the module who provides this dev */ |
| int id; |
| char name[AE_NAME_SIZE]; |
| struct list_head handle_list; |
| spinlock_t lock; /* lock to protect the handle_list */ |
| }; |
| |
| struct hnae_handle { |
| struct device *owner_dev; /* the device which make use of this handle */ |
| struct hnae_ae_dev *dev; /* the device who provides this handle */ |
| struct device_node *phy_node; |
| phy_interface_t phy_if; |
| u32 if_support; |
| int q_num; |
| int vf_id; |
| u32 eport_id; |
| u32 dport_id; /* v2 tx bd should fill the dport_id */ |
| enum hnae_port_type port_type; |
| struct list_head node; /* list to hnae_ae_dev->handle_list */ |
| struct hnae_buf_ops *bops; /* operation for the buffer */ |
| struct hnae_queue **qs; /* array base of all queues */ |
| }; |
| |
| #define ring_to_dev(ring) ((ring)->q->dev->dev) |
| |
| struct hnae_handle *hnae_get_handle(struct device *owner_dev, |
| const struct device_node *ae_node, |
| u32 port_id, |
| struct hnae_buf_ops *bops); |
| |
| void hnae_put_handle(struct hnae_handle *handle); |
| int hnae_ae_register(struct hnae_ae_dev *dev, struct module *owner); |
| void hnae_ae_unregister(struct hnae_ae_dev *dev); |
| |
| int hnae_register_notifier(struct notifier_block *nb); |
| void hnae_unregister_notifier(struct notifier_block *nb); |
| int hnae_reinit_handle(struct hnae_handle *handle); |
| |
| #define hnae_queue_xmit(q, buf_num) writel_relaxed(buf_num, \ |
| (q)->tx_ring.io_base + RCB_REG_TAIL) |
| |
| #ifndef assert |
| #define assert(cond) |
| #endif |
| |
| static inline int hnae_reserve_buffer_map(struct hnae_ring *ring, |
| struct hnae_desc_cb *cb) |
| { |
| struct hnae_buf_ops *bops = ring->q->handle->bops; |
| int ret; |
| |
| ret = bops->alloc_buffer(ring, cb); |
| if (ret) |
| goto out; |
| |
| ret = bops->map_buffer(ring, cb); |
| if (ret) |
| goto out_with_buf; |
| |
| return 0; |
| |
| out_with_buf: |
| bops->free_buffer(ring, cb); |
| out: |
| return ret; |
| } |
| |
| static inline int hnae_alloc_buffer_attach(struct hnae_ring *ring, int i) |
| { |
| int ret = hnae_reserve_buffer_map(ring, &ring->desc_cb[i]); |
| |
| if (ret) |
| return ret; |
| |
| ring->desc[i].addr = (__le64)ring->desc_cb[i].dma; |
| |
| return 0; |
| } |
| |
| static inline void hnae_buffer_detach(struct hnae_ring *ring, int i) |
| { |
| ring->q->handle->bops->unmap_buffer(ring, &ring->desc_cb[i]); |
| ring->desc[i].addr = 0; |
| } |
| |
| static inline void hnae_free_buffer_detach(struct hnae_ring *ring, int i) |
| { |
| struct hnae_buf_ops *bops = ring->q->handle->bops; |
| struct hnae_desc_cb *cb = &ring->desc_cb[i]; |
| |
| if (!ring->desc_cb[i].dma) |
| return; |
| |
| hnae_buffer_detach(ring, i); |
| bops->free_buffer(ring, cb); |
| } |
| |
| /* detach a in-used buffer and replace with a reserved one */ |
| static inline void hnae_replace_buffer(struct hnae_ring *ring, int i, |
| struct hnae_desc_cb *res_cb) |
| { |
| struct hnae_buf_ops *bops = ring->q->handle->bops; |
| |
| bops->unmap_buffer(ring, &ring->desc_cb[i]); |
| ring->desc_cb[i] = *res_cb; |
| ring->desc[i].addr = (__le64)ring->desc_cb[i].dma; |
| ring->desc[i].rx.ipoff_bnum_pid_flag = 0; |
| } |
| |
| static inline void hnae_reuse_buffer(struct hnae_ring *ring, int i) |
| { |
| ring->desc_cb[i].reuse_flag = 0; |
| ring->desc[i].addr = (__le64)(ring->desc_cb[i].dma |
| + ring->desc_cb[i].page_offset); |
| ring->desc[i].rx.ipoff_bnum_pid_flag = 0; |
| } |
| |
| #define hnae_set_field(origin, mask, shift, val) \ |
| do { \ |
| (origin) &= (~(mask)); \ |
| (origin) |= ((val) << (shift)) & (mask); \ |
| } while (0) |
| |
| #define hnae_set_bit(origin, shift, val) \ |
| hnae_set_field((origin), (0x1 << (shift)), (shift), (val)) |
| |
| #define hnae_get_field(origin, mask, shift) (((origin) & (mask)) >> (shift)) |
| |
| #define hnae_get_bit(origin, shift) \ |
| hnae_get_field((origin), (0x1 << (shift)), (shift)) |
| |
| #endif |