/* * Copyright (C) 2005 - 2009 ServerEngines * 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@serverengines.com * * ServerEngines * 209 N. Fair Oaks Ave * Sunnyvale, CA 94085 */ #ifndef BE_H #define BE_H #include #include #include #include #include #include #include #include #include #include #include #include "be_hw.h" #define DRV_VER "2.101.346u" #define DRV_NAME "be2net" #define BE_NAME "ServerEngines BladeEngine2 10Gbps NIC" #define BE3_NAME "ServerEngines BladeEngine3 10Gbps NIC" #define OC_NAME "Emulex OneConnect 10Gbps NIC" #define OC_NAME1 "Emulex OneConnect 10Gbps NIC (be3)" #define DRV_DESC "ServerEngines BladeEngine 10Gbps NIC Driver" #define BE_VENDOR_ID 0x19a2 #define BE_DEVICE_ID1 0x211 #define BE_DEVICE_ID2 0x221 #define OC_DEVICE_ID1 0x700 #define OC_DEVICE_ID2 0x710 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_NAME1; case BE_DEVICE_ID2: return BE3_NAME; default: return BE_NAME; } } /* Number of bytes of an RX frame that are copied to skb->data */ #define 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 96 #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 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 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_head_inc(struct be_queue_info *q) { index_inc(&q->head, q->len); } 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; u16 min_eqd; /* in usecs */ u16 max_eqd; /* in usecs */ u16 cur_eqd; /* in usecs */ struct napi_struct napi; }; struct be_mcc_obj { struct be_queue_info q; struct be_queue_info cq; bool rearm_cq; }; struct be_drvr_stats { u32 be_tx_reqs; /* number of TX requests initiated */ u32 be_tx_stops; /* number of times TX Q was stopped */ u32 be_fwd_reqs; /* number of send reqs through forwarding i/f */ u32 be_tx_wrbs; /* number of tx WRBs used */ u32 be_tx_events; /* number of tx completion events */ u32 be_tx_compl; /* number of tx completion entries processed */ ulong be_tx_jiffies; u64 be_tx_bytes; u64 be_tx_bytes_prev; u32 be_tx_rate; u32 cache_barrier[16]; u32 be_ethrx_post_fail;/* number of ethrx buffer alloc failures */ u32 be_rx_polls; /* number of times NAPI called poll function */ u32 be_rx_events; /* number of ucast rx completion events */ u32 be_rx_compl; /* number of rx completion entries processed */ ulong be_rx_jiffies; u64 be_rx_bytes; u64 be_rx_bytes_prev; u32 be_rx_rate; /* number of non ether type II frames dropped where * frame len > length field of Mac Hdr */ u32 be_802_3_dropped_frames; /* number of non ether type II frames malformed where * in frame len < length field of Mac Hdr */ u32 be_802_3_malformed_frames; u32 be_rxcp_err; /* Num rx completion entries w/ err set. */ ulong rx_fps_jiffies; /* jiffies at last FPS calc */ u32 be_rx_frags; u32 be_prev_rx_frags; u32 be_rx_fps; /* Rx frags per second */ }; struct be_stats_obj { struct be_drvr_stats drvr_stats; struct be_dma_mem cmd; }; struct be_tx_obj { 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 to remember the pages posted for rx frags */ struct be_rx_page_info { struct page *page; dma_addr_t bus; u16 page_offset; bool last_page_user; }; struct be_rx_obj { struct be_queue_info q; struct be_queue_info cq; struct be_rx_page_info page_info_tbl[RX_Q_LEN]; }; #define BE_NUM_MSIX_VECTORS 2 /* 1 each for Tx and Rx */ struct be_adapter { struct pci_dev *pdev; struct net_device *netdev; u8 __iomem *csr; u8 __iomem *db; /* Door Bell */ u8 __iomem *pcicfg; /* PCI config space */ spinlock_t 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; struct msix_entry msix_entries[BE_NUM_MSIX_VECTORS]; bool msix_enabled; bool isr_registered; /* TX Rings */ struct be_eq_obj tx_eq; struct be_tx_obj tx_obj; u32 cache_line_break[8]; /* Rx rings */ struct be_eq_obj rx_eq; struct be_rx_obj rx_obj; u32 big_page_size; /* Compounded page size shared by rx wrbs */ bool rx_post_starved; /* Zero rx frags have been posted to BE */ struct vlan_group *vlan_grp; u16 vlans_added; u16 max_vlans; /* Number of vlans supported */ u8 vlan_tag[VLAN_GROUP_ARRAY_LEN]; struct be_dma_mem mc_cmd_mem; struct be_stats_obj stats; /* Work queue used to perform periodic tasks like getting statistics */ struct delayed_work work; /* Ethtool knobs and info */ bool rx_csum; /* BE card must perform rx-checksumming */ char fw_ver[FW_VER_LEN]; u32 if_handle; /* Used to configure filtering */ u32 pmac_id; /* MAC addr handle used by BE card */ bool eeh_err; bool link_up; u32 port_num; bool promiscuous; bool wol; u32 cap; u32 rx_fc; /* Rx flow control */ u32 tx_fc; /* Tx flow control */ int link_speed; u8 port_type; u8 transceiver; u8 generation; /* BladeEngine ASIC generation */ }; /* BladeEngine Generation numbers */ #define BE_GEN2 2 #define BE_GEN3 3 extern const struct ethtool_ops be_ethtool_ops; #define drvr_stats(adapter) (&adapter->stats.drvr_stats) static inline unsigned int be_pci_func(struct be_adapter *adapter) { return PCI_FUNC(adapter->pdev->devfn); } #define BE_SET_NETDEV_OPS(netdev, ops) (netdev->netdev_ops = ops) #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)) /* Byte offset into the page corresponding to given address */ #define OFFSET_IN_PAGE(addr) \ ((size_t)(addr) & (PAGE_SIZE_4K-1)) /* 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; } extern void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped); extern void be_link_status_update(struct be_adapter *adapter, bool link_up); extern void netdev_stats_update(struct be_adapter *adapter); extern int be_load_fw(struct be_adapter *adapter, u8 *func); #endif /* BE_H */