/* * Copyright (C) 2005 - 2014 Emulex * All rights reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License version 2 * as published by the Free Software Foundation. The full GNU General * Public License is included in this distribution in the file called COPYING. * * Contact Information: * linux-drivers@emulex.com * * Emulex * 3333 Susan Street * Costa Mesa, CA 92626 */ #ifndef BE_H #define BE_H #include #include #include #include #include #include #include #include #include #include #include #include #include "be_hw.h" #include "be_roce.h" #define DRV_VER "10.0.600.0u" #define DRV_NAME "be2net" #define BE_NAME "Emulex BladeEngine2" #define BE3_NAME "Emulex BladeEngine3" #define OC_NAME "Emulex OneConnect" #define OC_NAME_BE OC_NAME "(be3)" #define OC_NAME_LANCER OC_NAME "(Lancer)" #define OC_NAME_SH OC_NAME "(Skyhawk)" #define DRV_DESC "Emulex OneConnect NIC Driver" #define BE_VENDOR_ID 0x19a2 #define EMULEX_VENDOR_ID 0x10df #define BE_DEVICE_ID1 0x211 #define BE_DEVICE_ID2 0x221 #define OC_DEVICE_ID1 0x700 /* Device Id for BE2 cards */ #define OC_DEVICE_ID2 0x710 /* Device Id for BE3 cards */ #define OC_DEVICE_ID3 0xe220 /* Device id for Lancer cards */ #define OC_DEVICE_ID4 0xe228 /* Device id for VF in Lancer */ #define OC_DEVICE_ID5 0x720 /* Device Id for Skyhawk cards */ #define OC_DEVICE_ID6 0x728 /* Device id for VF in SkyHawk */ #define OC_SUBSYS_DEVICE_ID1 0xE602 #define OC_SUBSYS_DEVICE_ID2 0xE642 #define OC_SUBSYS_DEVICE_ID3 0xE612 #define OC_SUBSYS_DEVICE_ID4 0xE652 static inline char *nic_name(struct pci_dev *pdev) { switch (pdev->device) { case OC_DEVICE_ID1: return OC_NAME; case OC_DEVICE_ID2: return OC_NAME_BE; case OC_DEVICE_ID3: case OC_DEVICE_ID4: return OC_NAME_LANCER; case BE_DEVICE_ID2: return BE3_NAME; case OC_DEVICE_ID5: case OC_DEVICE_ID6: return OC_NAME_SH; default: return BE_NAME; } } /* Number of bytes of an RX frame that are copied to skb->data */ #define BE_HDR_LEN ((u16) 64) /* allocate extra space to allow tunneling decapsulation without head reallocation */ #define BE_RX_SKB_ALLOC_SIZE (BE_HDR_LEN + 64) #define BE_MAX_JUMBO_FRAME_SIZE 9018 #define BE_MIN_MTU 256 #define BE_NUM_VLANS_SUPPORTED 64 #define BE_MAX_EQD 128u #define BE_MAX_TX_FRAG_COUNT 30 #define EVNT_Q_LEN 1024 #define TX_Q_LEN 2048 #define TX_CQ_LEN 1024 #define RX_Q_LEN 1024 /* Does not support any other value */ #define RX_CQ_LEN 1024 #define MCC_Q_LEN 128 /* total size not to exceed 8 pages */ #define MCC_CQ_LEN 256 #define BE2_MAX_RSS_QS 4 #define BE3_MAX_RSS_QS 16 #define BE3_MAX_TX_QS 16 #define BE3_MAX_EVT_QS 16 #define BE3_SRIOV_MAX_EVT_QS 8 #define MAX_RX_QS 32 #define MAX_EVT_QS 32 #define MAX_TX_QS 32 #define MAX_ROCE_EQS 5 #define MAX_MSIX_VECTORS 32 #define MIN_MSIX_VECTORS 1 #define BE_TX_BUDGET 256 #define BE_NAPI_WEIGHT 64 #define MAX_RX_POST BE_NAPI_WEIGHT /* Frags posted at a time */ #define RX_FRAGS_REFILL_WM (RX_Q_LEN - MAX_RX_POST) #define MAX_VFS 30 /* Max VFs supported by BE3 FW */ #define FW_VER_LEN 32 struct be_dma_mem { void *va; dma_addr_t dma; u32 size; }; struct be_queue_info { struct be_dma_mem dma_mem; u16 len; u16 entry_size; /* Size of an element in the queue */ u16 id; u16 tail, head; bool created; atomic_t used; /* Number of valid elements in the queue */ }; static inline u32 MODULO(u16 val, u16 limit) { BUG_ON(limit & (limit - 1)); return val & (limit - 1); } static inline void index_adv(u16 *index, u16 val, u16 limit) { *index = MODULO((*index + val), limit); } static inline void index_inc(u16 *index, u16 limit) { *index = MODULO((*index + 1), limit); } static inline void *queue_head_node(struct be_queue_info *q) { return q->dma_mem.va + q->head * q->entry_size; } static inline void *queue_tail_node(struct be_queue_info *q) { return q->dma_mem.va + q->tail * q->entry_size; } static inline void *queue_index_node(struct be_queue_info *q, u16 index) { return q->dma_mem.va + index * q->entry_size; } static inline void queue_head_inc(struct be_queue_info *q) { index_inc(&q->head, q->len); } static inline void index_dec(u16 *index, u16 limit) { *index = MODULO((*index - 1), limit); } static inline void queue_tail_inc(struct be_queue_info *q) { index_inc(&q->tail, q->len); } struct be_eq_obj { struct be_queue_info q; char desc[32]; /* Adaptive interrupt coalescing (AIC) info */ bool enable_aic; u32 min_eqd; /* in usecs */ u32 max_eqd; /* in usecs */ u32 eqd; /* configured val when aic is off */ u32 cur_eqd; /* in usecs */ u8 idx; /* array index */ u8 msix_idx; u16 tx_budget; u16 spurious_intr; struct napi_struct napi; struct be_adapter *adapter; #ifdef CONFIG_NET_RX_BUSY_POLL #define BE_EQ_IDLE 0 #define BE_EQ_NAPI 1 /* napi owns this EQ */ #define BE_EQ_POLL 2 /* poll owns this EQ */ #define BE_EQ_LOCKED (BE_EQ_NAPI | BE_EQ_POLL) #define BE_EQ_NAPI_YIELD 4 /* napi yielded this EQ */ #define BE_EQ_POLL_YIELD 8 /* poll yielded this EQ */ #define BE_EQ_YIELD (BE_EQ_NAPI_YIELD | BE_EQ_POLL_YIELD) #define BE_EQ_USER_PEND (BE_EQ_POLL | BE_EQ_POLL_YIELD) unsigned int state; spinlock_t lock; /* lock to serialize napi and busy-poll */ #endif /* CONFIG_NET_RX_BUSY_POLL */ } ____cacheline_aligned_in_smp; struct be_aic_obj { /* Adaptive interrupt coalescing (AIC) info */ bool enable; u32 min_eqd; /* in usecs */ u32 max_eqd; /* in usecs */ u32 prev_eqd; /* in usecs */ u32 et_eqd; /* configured val when aic is off */ ulong jiffies; u64 rx_pkts_prev; /* Used to calculate RX pps */ u64 tx_reqs_prev; /* Used to calculate TX pps */ }; enum { NAPI_POLLING, BUSY_POLLING }; struct be_mcc_obj { struct be_queue_info q; struct be_queue_info cq; bool rearm_cq; }; struct be_tx_stats { u64 tx_bytes; u64 tx_pkts; u64 tx_reqs; u64 tx_wrbs; u64 tx_compl; ulong tx_jiffies; u32 tx_stops; u32 tx_drv_drops; /* pkts dropped by driver */ struct u64_stats_sync sync; struct u64_stats_sync sync_compl; }; struct be_tx_obj { u32 db_offset; struct be_queue_info q; struct be_queue_info cq; /* Remember the skbs that were transmitted */ struct sk_buff *sent_skb_list[TX_Q_LEN]; struct be_tx_stats stats; } ____cacheline_aligned_in_smp; /* Struct to remember the pages posted for rx frags */ struct be_rx_page_info { struct page *page; /* set to page-addr for last frag of the page & frag-addr otherwise */ DEFINE_DMA_UNMAP_ADDR(bus); u16 page_offset; bool last_frag; /* last frag of the page */ }; struct be_rx_stats { u64 rx_bytes; u64 rx_pkts; u32 rx_drops_no_skbs; /* skb allocation errors */ u32 rx_drops_no_frags; /* HW has no fetched frags */ u32 rx_post_fail; /* page post alloc failures */ u32 rx_compl; u32 rx_mcast_pkts; u32 rx_compl_err; /* completions with err set */ struct u64_stats_sync sync; }; struct be_rx_compl_info { u32 rss_hash; u16 vlan_tag; u16 pkt_size; u16 port; u8 vlanf; u8 num_rcvd; u8 err; u8 ipf; u8 tcpf; u8 udpf; u8 ip_csum; u8 l4_csum; u8 ipv6; u8 qnq; u8 pkt_type; u8 ip_frag; }; struct be_rx_obj { struct be_adapter *adapter; struct be_queue_info q; struct be_queue_info cq; struct be_rx_compl_info rxcp; struct be_rx_page_info page_info_tbl[RX_Q_LEN]; struct be_rx_stats stats; u8 rss_id; bool rx_post_starved; /* Zero rx frags have been posted to BE */ } ____cacheline_aligned_in_smp; struct be_drv_stats { u32 be_on_die_temperature; u32 eth_red_drops; u32 rx_drops_no_pbuf; u32 rx_drops_no_txpb; u32 rx_drops_no_erx_descr; u32 rx_drops_no_tpre_descr; u32 rx_drops_too_many_frags; u32 forwarded_packets; u32 rx_drops_mtu; u32 rx_crc_errors; u32 rx_alignment_symbol_errors; u32 rx_pause_frames; u32 rx_priority_pause_frames; u32 rx_control_frames; u32 rx_in_range_errors; u32 rx_out_range_errors; u32 rx_frame_too_long; u32 rx_address_filtered; u32 rx_dropped_too_small; u32 rx_dropped_too_short; u32 rx_dropped_header_too_small; u32 rx_dropped_tcp_length; u32 rx_dropped_runt; u32 rx_ip_checksum_errs; u32 rx_tcp_checksum_errs; u32 rx_udp_checksum_errs; u32 tx_pauseframes; u32 tx_priority_pauseframes; u32 tx_controlframes; u32 rxpp_fifo_overflow_drop; u32 rx_input_fifo_overflow_drop; u32 pmem_fifo_overflow_drop; u32 jabber_events; u32 rx_roce_bytes_lsd; u32 rx_roce_bytes_msd; u32 rx_roce_frames; u32 roce_drops_payload_len; u32 roce_drops_crc; }; /* A vlan-id of 0xFFFF must be used to clear transparent vlan-tagging */ #define BE_RESET_VLAN_TAG_ID 0xFFFF struct be_vf_cfg { unsigned char mac_addr[ETH_ALEN]; int if_handle; int pmac_id; u16 vlan_tag; u32 tx_rate; u32 plink_tracking; }; enum vf_state { ENABLED = 0, ASSIGNED = 1 }; #define BE_FLAGS_LINK_STATUS_INIT 1 #define BE_FLAGS_WORKER_SCHEDULED (1 << 3) #define BE_FLAGS_VLAN_PROMISC (1 << 4) #define BE_FLAGS_NAPI_ENABLED (1 << 9) #define BE_UC_PMAC_COUNT 30 #define BE_VF_UC_PMAC_COUNT 2 #define BE_FLAGS_QNQ_ASYNC_EVT_RCVD (1 << 11) /* Ethtool set_dump flags */ #define LANCER_INITIATE_FW_DUMP 0x1 struct phy_info { u8 transceiver; u8 autoneg; u8 fc_autoneg; u8 port_type; u16 phy_type; u16 interface_type; u32 misc_params; u16 auto_speeds_supported; u16 fixed_speeds_supported; int link_speed; u32 dac_cable_len; u32 advertising; u32 supported; }; struct be_resources { u16 max_vfs; /* Total VFs "really" supported by FW/HW */ u16 max_mcast_mac; u16 max_tx_qs; u16 max_rss_qs; u16 max_rx_qs; u16 max_uc_mac; /* Max UC MACs programmable */ u16 max_vlans; /* Number of vlans supported */ u16 max_evt_qs; u32 if_cap_flags; }; struct be_adapter { struct pci_dev *pdev; struct net_device *netdev; u8 __iomem *csr; /* CSR BAR used only for BE2/3 */ u8 __iomem *db; /* Door Bell */ struct mutex mbox_lock; /* For serializing mbox cmds to BE card */ struct be_dma_mem mbox_mem; /* Mbox mem is adjusted to align to 16 bytes. The allocated addr * is stored for freeing purpose */ struct be_dma_mem mbox_mem_alloced; struct be_mcc_obj mcc_obj; spinlock_t mcc_lock; /* For serializing mcc cmds to BE card */ spinlock_t mcc_cq_lock; u16 cfg_num_qs; /* configured via set-channels */ u16 num_evt_qs; u16 num_msix_vec; struct be_eq_obj eq_obj[MAX_EVT_QS]; struct msix_entry msix_entries[MAX_MSIX_VECTORS]; bool isr_registered; /* TX Rings */ u16 num_tx_qs; struct be_tx_obj tx_obj[MAX_TX_QS]; /* Rx rings */ u16 num_rx_qs; struct be_rx_obj rx_obj[MAX_RX_QS]; u32 big_page_size; /* Compounded page size shared by rx wrbs */ struct be_drv_stats drv_stats; struct be_aic_obj aic_obj[MAX_EVT_QS]; u16 vlans_added; u8 vlan_tag[VLAN_N_VID]; u8 vlan_prio_bmap; /* Available Priority BitMap */ u16 recommended_prio; /* Recommended Priority */ struct be_dma_mem rx_filter; /* Cmd DMA mem for rx-filter */ struct be_dma_mem stats_cmd; /* Work queue used to perform periodic tasks like getting statistics */ struct delayed_work work; u16 work_counter; struct delayed_work func_recovery_work; u32 flags; u32 cmd_privileges; /* Ethtool knobs and info */ char fw_ver[FW_VER_LEN]; char fw_on_flash[FW_VER_LEN]; int if_handle; /* Used to configure filtering */ u32 *pmac_id; /* MAC addr handle used by BE card */ u32 beacon_state; /* for set_phys_id */ bool eeh_error; bool fw_timeout; bool hw_error; u32 port_num; bool promiscuous; u8 mc_type; u32 function_mode; u32 function_caps; u32 rx_fc; /* Rx flow control */ u32 tx_fc; /* Tx flow control */ bool stats_cmd_sent; struct { u32 size; u32 total_size; u64 io_addr; } roce_db; u32 num_msix_roce_vec; struct ocrdma_dev *ocrdma_dev; struct list_head entry; u32 flash_status; struct completion et_cmd_compl; struct be_resources res; /* resources available for the func */ u16 num_vfs; /* Number of VFs provisioned by PF */ u8 virtfn; struct be_vf_cfg *vf_cfg; bool be3_native; u32 sli_family; u8 hba_port_num; u16 pvid; struct phy_info phy; u8 wol_cap; bool wol_en; u32 uc_macs; /* Count of secondary UC MAC programmed */ u16 asic_rev; u16 qnq_vid; u32 msg_enable; int be_get_temp_freq; u8 pf_number; u64 rss_flags; }; #define be_physfn(adapter) (!adapter->virtfn) #define be_virtfn(adapter) (adapter->virtfn) #define sriov_enabled(adapter) (adapter->num_vfs > 0) #define sriov_want(adapter) (be_physfn(adapter) && \ (num_vfs || pci_num_vf(adapter->pdev))) #define for_all_vfs(adapter, vf_cfg, i) \ for (i = 0, vf_cfg = &adapter->vf_cfg[i]; i < adapter->num_vfs; \ i++, vf_cfg++) #define ON 1 #define OFF 0 #define be_max_vlans(adapter) (adapter->res.max_vlans) #define be_max_uc(adapter) (adapter->res.max_uc_mac) #define be_max_mc(adapter) (adapter->res.max_mcast_mac) #define be_max_vfs(adapter) (adapter->res.max_vfs) #define be_max_rss(adapter) (adapter->res.max_rss_qs) #define be_max_txqs(adapter) (adapter->res.max_tx_qs) #define be_max_prio_txqs(adapter) (adapter->res.max_prio_tx_qs) #define be_max_rxqs(adapter) (adapter->res.max_rx_qs) #define be_max_eqs(adapter) (adapter->res.max_evt_qs) #define be_if_cap_flags(adapter) (adapter->res.if_cap_flags) static inline u16 be_max_qs(struct be_adapter *adapter) { /* If no RSS, need atleast the one def RXQ */ u16 num = max_t(u16, be_max_rss(adapter), 1); num = min(num, be_max_eqs(adapter)); return min_t(u16, num, num_online_cpus()); } /* Is BE in pvid_tagging mode */ #define be_pvid_tagging_enabled(adapter) (adapter->pvid) /* Is BE in QNQ multi-channel mode */ #define be_is_qnq_mode(adapter) (adapter->mc_type == FLEX10 || \ adapter->mc_type == vNIC1 || \ adapter->mc_type == UFP) #define lancer_chip(adapter) (adapter->pdev->device == OC_DEVICE_ID3 || \ adapter->pdev->device == OC_DEVICE_ID4) #define skyhawk_chip(adapter) (adapter->pdev->device == OC_DEVICE_ID5 || \ adapter->pdev->device == OC_DEVICE_ID6) #define BE3_chip(adapter) (adapter->pdev->device == BE_DEVICE_ID2 || \ adapter->pdev->device == OC_DEVICE_ID2) #define BE2_chip(adapter) (adapter->pdev->device == BE_DEVICE_ID1 || \ adapter->pdev->device == OC_DEVICE_ID1) #define BEx_chip(adapter) (BE3_chip(adapter) || BE2_chip(adapter)) #define be_roce_supported(adapter) (skyhawk_chip(adapter) && \ (adapter->function_mode & RDMA_ENABLED)) extern const struct ethtool_ops be_ethtool_ops; #define msix_enabled(adapter) (adapter->num_msix_vec > 0) #define num_irqs(adapter) (msix_enabled(adapter) ? \ adapter->num_msix_vec : 1) #define tx_stats(txo) (&(txo)->stats) #define rx_stats(rxo) (&(rxo)->stats) /* The default RXQ is the last RXQ */ #define default_rxo(adpt) (&adpt->rx_obj[adpt->num_rx_qs - 1]) #define for_all_rx_queues(adapter, rxo, i) \ for (i = 0, rxo = &adapter->rx_obj[i]; i < adapter->num_rx_qs; \ i++, rxo++) /* Skip the default non-rss queue (last one)*/ #define for_all_rss_queues(adapter, rxo, i) \ for (i = 0, rxo = &adapter->rx_obj[i]; i < (adapter->num_rx_qs - 1);\ i++, rxo++) #define for_all_tx_queues(adapter, txo, i) \ for (i = 0, txo = &adapter->tx_obj[i]; i < adapter->num_tx_qs; \ i++, txo++) #define for_all_evt_queues(adapter, eqo, i) \ for (i = 0, eqo = &adapter->eq_obj[i]; i < adapter->num_evt_qs; \ i++, eqo++) #define for_all_rx_queues_on_eq(adapter, eqo, rxo, i) \ for (i = eqo->idx, rxo = &adapter->rx_obj[i]; i < adapter->num_rx_qs;\ i += adapter->num_evt_qs, rxo += adapter->num_evt_qs) #define is_mcc_eqo(eqo) (eqo->idx == 0) #define mcc_eqo(adapter) (&adapter->eq_obj[0]) #define PAGE_SHIFT_4K 12 #define PAGE_SIZE_4K (1 << PAGE_SHIFT_4K) /* Returns number of pages spanned by the data starting at the given addr */ #define PAGES_4K_SPANNED(_address, size) \ ((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) + \ (size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K)) /* Returns bit offset within a DWORD of a bitfield */ #define AMAP_BIT_OFFSET(_struct, field) \ (((size_t)&(((_struct *)0)->field))%32) /* Returns the bit mask of the field that is NOT shifted into location. */ static inline u32 amap_mask(u32 bitsize) { return (bitsize == 32 ? 0xFFFFFFFF : (1 << bitsize) - 1); } static inline void amap_set(void *ptr, u32 dw_offset, u32 mask, u32 offset, u32 value) { u32 *dw = (u32 *) ptr + dw_offset; *dw &= ~(mask << offset); *dw |= (mask & value) << offset; } #define AMAP_SET_BITS(_struct, field, ptr, val) \ amap_set(ptr, \ offsetof(_struct, field)/32, \ amap_mask(sizeof(((_struct *)0)->field)), \ AMAP_BIT_OFFSET(_struct, field), \ val) static inline u32 amap_get(void *ptr, u32 dw_offset, u32 mask, u32 offset) { u32 *dw = (u32 *) ptr; return mask & (*(dw + dw_offset) >> offset); } #define AMAP_GET_BITS(_struct, field, ptr) \ amap_get(ptr, \ offsetof(_struct, field)/32, \ amap_mask(sizeof(((_struct *)0)->field)), \ AMAP_BIT_OFFSET(_struct, field)) #define be_dws_cpu_to_le(wrb, len) swap_dws(wrb, len) #define be_dws_le_to_cpu(wrb, len) swap_dws(wrb, len) static inline void swap_dws(void *wrb, int len) { #ifdef __BIG_ENDIAN u32 *dw = wrb; BUG_ON(len % 4); do { *dw = cpu_to_le32(*dw); dw++; len -= 4; } while (len); #endif /* __BIG_ENDIAN */ } static inline u8 is_tcp_pkt(struct sk_buff *skb) { u8 val = 0; if (ip_hdr(skb)->version == 4) val = (ip_hdr(skb)->protocol == IPPROTO_TCP); else if (ip_hdr(skb)->version == 6) val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_TCP); return val; } static inline u8 is_udp_pkt(struct sk_buff *skb) { u8 val = 0; if (ip_hdr(skb)->version == 4) val = (ip_hdr(skb)->protocol == IPPROTO_UDP); else if (ip_hdr(skb)->version == 6) val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_UDP); return val; } static inline bool is_ipv4_pkt(struct sk_buff *skb) { return skb->protocol == htons(ETH_P_IP) && ip_hdr(skb)->version == 4; } static inline void be_vf_eth_addr_generate(struct be_adapter *adapter, u8 *mac) { u32 addr; addr = jhash(adapter->netdev->dev_addr, ETH_ALEN, 0); mac[5] = (u8)(addr & 0xFF); mac[4] = (u8)((addr >> 8) & 0xFF); mac[3] = (u8)((addr >> 16) & 0xFF); /* Use the OUI from the current MAC address */ memcpy(mac, adapter->netdev->dev_addr, 3); } static inline bool be_multi_rxq(const struct be_adapter *adapter) { return adapter->num_rx_qs > 1; } static inline bool be_error(struct be_adapter *adapter) { return adapter->eeh_error || adapter->hw_error || adapter->fw_timeout; } static inline bool be_hw_error(struct be_adapter *adapter) { return adapter->eeh_error || adapter->hw_error; } static inline void be_clear_all_error(struct be_adapter *adapter) { adapter->eeh_error = false; adapter->hw_error = false; adapter->fw_timeout = false; } static inline bool be_is_wol_excluded(struct be_adapter *adapter) { struct pci_dev *pdev = adapter->pdev; if (!be_physfn(adapter)) return true; switch (pdev->subsystem_device) { case OC_SUBSYS_DEVICE_ID1: case OC_SUBSYS_DEVICE_ID2: case OC_SUBSYS_DEVICE_ID3: case OC_SUBSYS_DEVICE_ID4: return true; default: return false; } } static inline int qnq_async_evt_rcvd(struct be_adapter *adapter) { return adapter->flags & BE_FLAGS_QNQ_ASYNC_EVT_RCVD; } #ifdef CONFIG_NET_RX_BUSY_POLL static inline bool be_lock_napi(struct be_eq_obj *eqo) { bool status = true; spin_lock(&eqo->lock); /* BH is already disabled */ if (eqo->state & BE_EQ_LOCKED) { WARN_ON(eqo->state & BE_EQ_NAPI); eqo->state |= BE_EQ_NAPI_YIELD; status = false; } else { eqo->state = BE_EQ_NAPI; } spin_unlock(&eqo->lock); return status; } static inline void be_unlock_napi(struct be_eq_obj *eqo) { spin_lock(&eqo->lock); /* BH is already disabled */ WARN_ON(eqo->state & (BE_EQ_POLL | BE_EQ_NAPI_YIELD)); eqo->state = BE_EQ_IDLE; spin_unlock(&eqo->lock); } static inline bool be_lock_busy_poll(struct be_eq_obj *eqo) { bool status = true; spin_lock_bh(&eqo->lock); if (eqo->state & BE_EQ_LOCKED) { eqo->state |= BE_EQ_POLL_YIELD; status = false; } else { eqo->state |= BE_EQ_POLL; } spin_unlock_bh(&eqo->lock); return status; } static inline void be_unlock_busy_poll(struct be_eq_obj *eqo) { spin_lock_bh(&eqo->lock); WARN_ON(eqo->state & (BE_EQ_NAPI)); eqo->state = BE_EQ_IDLE; spin_unlock_bh(&eqo->lock); } static inline void be_enable_busy_poll(struct be_eq_obj *eqo) { spin_lock_init(&eqo->lock); eqo->state = BE_EQ_IDLE; } static inline void be_disable_busy_poll(struct be_eq_obj *eqo) { local_bh_disable(); /* It's enough to just acquire napi lock on the eqo to stop * be_busy_poll() from processing any queueus. */ while (!be_lock_napi(eqo)) mdelay(1); local_bh_enable(); } #else /* CONFIG_NET_RX_BUSY_POLL */ static inline bool be_lock_napi(struct be_eq_obj *eqo) { return true; } static inline void be_unlock_napi(struct be_eq_obj *eqo) { } static inline bool be_lock_busy_poll(struct be_eq_obj *eqo) { return false; } static inline void be_unlock_busy_poll(struct be_eq_obj *eqo) { } static inline void be_enable_busy_poll(struct be_eq_obj *eqo) { } static inline void be_disable_busy_poll(struct be_eq_obj *eqo) { } #endif /* CONFIG_NET_RX_BUSY_POLL */ void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped); void be_link_status_update(struct be_adapter *adapter, u8 link_status); void be_parse_stats(struct be_adapter *adapter); int be_load_fw(struct be_adapter *adapter, u8 *func); bool be_is_wol_supported(struct be_adapter *adapter); bool be_pause_supported(struct be_adapter *adapter); u32 be_get_fw_log_level(struct be_adapter *adapter); static inline int fw_major_num(const char *fw_ver) { int fw_major = 0; sscanf(fw_ver, "%d.", &fw_major); return fw_major; } int be_update_queues(struct be_adapter *adapter); int be_poll(struct napi_struct *napi, int budget); /* * internal function to initialize-cleanup roce device. */ void be_roce_dev_add(struct be_adapter *); void be_roce_dev_remove(struct be_adapter *); /* * internal function to open-close roce device during ifup-ifdown. */ void be_roce_dev_open(struct be_adapter *); void be_roce_dev_close(struct be_adapter *); #endif /* BE_H */