| /* |
| * 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 <linux/pci.h> |
| #include <linux/etherdevice.h> |
| #include <linux/version.h> |
| #include <linux/delay.h> |
| #include <net/tcp.h> |
| #include <net/ip.h> |
| #include <net/ipv6.h> |
| #include <linux/if_vlan.h> |
| #include <linux/workqueue.h> |
| #include <linux/interrupt.h> |
| #include <linux/firmware.h> |
| |
| #include "be_hw.h" |
| |
| #define DRV_VER "2.101.205" |
| #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 BE_NAME "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 0x701 |
| #define OC_DEVICE_ID3 0x710 |
| |
| static inline char *nic_name(struct pci_dev *pdev) |
| { |
| switch (pdev->device) { |
| case OC_DEVICE_ID1: |
| case OC_DEVICE_ID2: |
| return OC_NAME; |
| case OC_DEVICE_ID3: |
| 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; |
| }; |
| |
| 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_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 num_vlans; |
| u8 vlan_tag[VLAN_GROUP_ARRAY_LEN]; |
| |
| 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 link_up; |
| u32 port_num; |
| bool promiscuous; |
| u32 cap; |
| }; |
| |
| 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 */ |