2 * Copyright (C) 2005 - 2010 ServerEngines
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License version 2
7 * as published by the Free Software Foundation. The full GNU General
8 * Public License is included in this distribution in the file called COPYING.
10 * Contact Information:
14 * 209 N. Fair Oaks Ave
21 #include <linux/pci.h>
22 #include <linux/etherdevice.h>
23 #include <linux/version.h>
24 #include <linux/delay.h>
28 #include <linux/if_vlan.h>
29 #include <linux/workqueue.h>
30 #include <linux/interrupt.h>
31 #include <linux/firmware.h>
32 #include <linux/slab.h>
36 #define DRV_VER "2.103.175u"
37 #define DRV_NAME "be2net"
38 #define BE_NAME "ServerEngines BladeEngine2 10Gbps NIC"
39 #define BE3_NAME "ServerEngines BladeEngine3 10Gbps NIC"
40 #define OC_NAME "Emulex OneConnect 10Gbps NIC"
41 #define OC_NAME_BE OC_NAME "(be3)"
42 #define OC_NAME_LANCER OC_NAME "(Lancer)"
43 #define DRV_DESC "ServerEngines BladeEngine 10Gbps NIC Driver"
45 #define BE_VENDOR_ID 0x19a2
46 #define EMULEX_VENDOR_ID 0x10df
47 #define BE_DEVICE_ID1 0x211
48 #define BE_DEVICE_ID2 0x221
49 #define OC_DEVICE_ID1 0x700 /* Device Id for BE2 cards */
50 #define OC_DEVICE_ID2 0x710 /* Device Id for BE3 cards */
51 #define OC_DEVICE_ID3 0xe220 /* Device id for Lancer cards */
53 static inline char *nic_name(struct pci_dev *pdev)
55 switch (pdev->device) {
61 return OC_NAME_LANCER;
69 /* Number of bytes of an RX frame that are copied to skb->data */
71 #define BE_MAX_JUMBO_FRAME_SIZE 9018
72 #define BE_MIN_MTU 256
74 #define BE_NUM_VLANS_SUPPORTED 64
76 #define BE_MAX_TX_FRAG_COUNT 30
78 #define EVNT_Q_LEN 1024
80 #define TX_CQ_LEN 1024
81 #define RX_Q_LEN 1024 /* Does not support any other value */
82 #define RX_CQ_LEN 1024
83 #define MCC_Q_LEN 128 /* total size not to exceed 8 pages */
84 #define MCC_CQ_LEN 256
86 #define MAX_RSS_QS 4 /* BE limit is 4 queues/port */
87 #define BE_MAX_MSIX_VECTORS (MAX_RSS_QS + 1 + 1)/* RSS qs + 1 def Rx + Tx */
88 #define BE_NAPI_WEIGHT 64
89 #define MAX_RX_POST BE_NAPI_WEIGHT /* Frags posted at a time */
90 #define RX_FRAGS_REFILL_WM (RX_Q_LEN - MAX_RX_POST)
102 struct be_queue_info {
103 struct be_dma_mem dma_mem;
105 u16 entry_size; /* Size of an element in the queue */
109 atomic_t used; /* Number of valid elements in the queue */
112 static inline u32 MODULO(u16 val, u16 limit)
114 BUG_ON(limit & (limit - 1));
115 return val & (limit - 1);
118 static inline void index_adv(u16 *index, u16 val, u16 limit)
120 *index = MODULO((*index + val), limit);
123 static inline void index_inc(u16 *index, u16 limit)
125 *index = MODULO((*index + 1), limit);
128 static inline void *queue_head_node(struct be_queue_info *q)
130 return q->dma_mem.va + q->head * q->entry_size;
133 static inline void *queue_tail_node(struct be_queue_info *q)
135 return q->dma_mem.va + q->tail * q->entry_size;
138 static inline void queue_head_inc(struct be_queue_info *q)
140 index_inc(&q->head, q->len);
143 static inline void queue_tail_inc(struct be_queue_info *q)
145 index_inc(&q->tail, q->len);
149 struct be_queue_info q;
152 /* Adaptive interrupt coalescing (AIC) info */
154 u16 min_eqd; /* in usecs */
155 u16 max_eqd; /* in usecs */
156 u16 cur_eqd; /* in usecs */
159 struct napi_struct napi;
163 struct be_queue_info q;
164 struct be_queue_info cq;
169 u32 be_tx_reqs; /* number of TX requests initiated */
170 u32 be_tx_stops; /* number of times TX Q was stopped */
171 u32 be_tx_wrbs; /* number of tx WRBs used */
172 u32 be_tx_events; /* number of tx completion events */
173 u32 be_tx_compl; /* number of tx completion entries processed */
176 u64 be_tx_bytes_prev;
182 struct be_queue_info q;
183 struct be_queue_info cq;
184 /* Remember the skbs that were transmitted */
185 struct sk_buff *sent_skb_list[TX_Q_LEN];
188 /* Struct to remember the pages posted for rx frags */
189 struct be_rx_page_info {
191 DEFINE_DMA_UNMAP_ADDR(bus);
197 u32 rx_post_fail;/* number of ethrx buffer alloc failures */
198 u32 rx_polls; /* number of times NAPI called poll function */
199 u32 rx_events; /* number of ucast rx completion events */
200 u32 rx_compl; /* number of rx completion entries processed */
207 u32 rxcp_err; /* Num rx completion entries w/ err set. */
208 ulong rx_fps_jiffies; /* jiffies at last FPS calc */
211 u32 rx_fps; /* Rx frags per second */
215 struct be_adapter *adapter;
216 struct be_queue_info q;
217 struct be_queue_info cq;
218 struct be_rx_page_info page_info_tbl[RX_Q_LEN];
219 struct be_eq_obj rx_eq;
220 struct be_rx_stats stats;
222 bool rx_post_starved; /* Zero rx frags have been posted to BE */
225 u32 cache_line_barrier[15];
229 unsigned char vf_mac_addr[ETH_ALEN];
236 #define BE_INVALID_PMAC_ID 0xffffffff
238 struct pci_dev *pdev;
239 struct net_device *netdev;
242 u8 __iomem *db; /* Door Bell */
243 u8 __iomem *pcicfg; /* PCI config space */
245 struct mutex mbox_lock; /* For serializing mbox cmds to BE card */
246 struct be_dma_mem mbox_mem;
247 /* Mbox mem is adjusted to align to 16 bytes. The allocated addr
248 * is stored for freeing purpose */
249 struct be_dma_mem mbox_mem_alloced;
251 struct be_mcc_obj mcc_obj;
252 spinlock_t mcc_lock; /* For serializing mcc cmds to BE card */
253 spinlock_t mcc_cq_lock;
255 struct msix_entry msix_entries[BE_MAX_MSIX_VECTORS];
260 struct be_eq_obj tx_eq;
261 struct be_tx_obj tx_obj;
262 struct be_tx_stats tx_stats;
264 u32 cache_line_break[8];
267 struct be_rx_obj rx_obj[MAX_RSS_QS + 1]; /* one default non-rss Q */
269 u32 big_page_size; /* Compounded page size shared by rx wrbs */
271 u8 msix_vec_next_idx;
273 struct vlan_group *vlan_grp;
275 u16 max_vlans; /* Number of vlans supported */
276 u8 vlan_tag[VLAN_N_VID];
277 u8 vlan_prio_bmap; /* Available Priority BitMap */
278 u16 recommended_prio; /* Recommended Priority */
279 struct be_dma_mem mc_cmd_mem;
281 struct be_dma_mem stats_cmd;
282 /* Work queue used to perform periodic tasks like getting statistics */
283 struct delayed_work work;
285 /* Ethtool knobs and info */
286 bool rx_csum; /* BE card must perform rx-checksumming */
287 char fw_ver[FW_VER_LEN];
288 u32 if_handle; /* Used to configure filtering */
289 u32 pmac_id; /* MAC addr handle used by BE card */
298 u32 rx_fc; /* Rx flow control */
299 u32 tx_fc; /* Tx flow control */
301 bool stats_ioctl_sent;
306 u8 generation; /* BladeEngine ASIC generation */
308 struct completion flash_compl;
311 struct be_vf_cfg vf_cfg[BE_MAX_VF];
316 #define be_physfn(adapter) (!adapter->is_virtfn)
318 /* BladeEngine Generation numbers */
322 #define lancer_chip(adapter) (adapter->pdev->device == OC_DEVICE_ID3)
324 extern const struct ethtool_ops be_ethtool_ops;
326 #define tx_stats(adapter) (&adapter->tx_stats)
327 #define rx_stats(rxo) (&rxo->stats)
329 #define BE_SET_NETDEV_OPS(netdev, ops) (netdev->netdev_ops = ops)
331 #define for_all_rx_queues(adapter, rxo, i) \
332 for (i = 0, rxo = &adapter->rx_obj[i]; i < adapter->num_rx_qs; \
335 /* Just skip the first default non-rss queue */
336 #define for_all_rss_queues(adapter, rxo, i) \
337 for (i = 0, rxo = &adapter->rx_obj[i+1]; i < (adapter->num_rx_qs - 1);\
340 #define PAGE_SHIFT_4K 12
341 #define PAGE_SIZE_4K (1 << PAGE_SHIFT_4K)
343 /* Returns number of pages spanned by the data starting at the given addr */
344 #define PAGES_4K_SPANNED(_address, size) \
345 ((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) + \
346 (size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K))
348 /* Byte offset into the page corresponding to given address */
349 #define OFFSET_IN_PAGE(addr) \
350 ((size_t)(addr) & (PAGE_SIZE_4K-1))
352 /* Returns bit offset within a DWORD of a bitfield */
353 #define AMAP_BIT_OFFSET(_struct, field) \
354 (((size_t)&(((_struct *)0)->field))%32)
356 /* Returns the bit mask of the field that is NOT shifted into location. */
357 static inline u32 amap_mask(u32 bitsize)
359 return (bitsize == 32 ? 0xFFFFFFFF : (1 << bitsize) - 1);
363 amap_set(void *ptr, u32 dw_offset, u32 mask, u32 offset, u32 value)
365 u32 *dw = (u32 *) ptr + dw_offset;
366 *dw &= ~(mask << offset);
367 *dw |= (mask & value) << offset;
370 #define AMAP_SET_BITS(_struct, field, ptr, val) \
372 offsetof(_struct, field)/32, \
373 amap_mask(sizeof(((_struct *)0)->field)), \
374 AMAP_BIT_OFFSET(_struct, field), \
377 static inline u32 amap_get(void *ptr, u32 dw_offset, u32 mask, u32 offset)
379 u32 *dw = (u32 *) ptr;
380 return mask & (*(dw + dw_offset) >> offset);
383 #define AMAP_GET_BITS(_struct, field, ptr) \
385 offsetof(_struct, field)/32, \
386 amap_mask(sizeof(((_struct *)0)->field)), \
387 AMAP_BIT_OFFSET(_struct, field))
389 #define be_dws_cpu_to_le(wrb, len) swap_dws(wrb, len)
390 #define be_dws_le_to_cpu(wrb, len) swap_dws(wrb, len)
391 static inline void swap_dws(void *wrb, int len)
397 *dw = cpu_to_le32(*dw);
401 #endif /* __BIG_ENDIAN */
404 static inline u8 is_tcp_pkt(struct sk_buff *skb)
408 if (ip_hdr(skb)->version == 4)
409 val = (ip_hdr(skb)->protocol == IPPROTO_TCP);
410 else if (ip_hdr(skb)->version == 6)
411 val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_TCP);
416 static inline u8 is_udp_pkt(struct sk_buff *skb)
420 if (ip_hdr(skb)->version == 4)
421 val = (ip_hdr(skb)->protocol == IPPROTO_UDP);
422 else if (ip_hdr(skb)->version == 6)
423 val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_UDP);
428 static inline void be_check_sriov_fn_type(struct be_adapter *adapter)
433 if (lancer_chip(adapter)) {
434 pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET,
436 adapter->is_virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0;
438 pci_write_config_byte(adapter->pdev, 0xFE, 0xAA);
439 pci_read_config_byte(adapter->pdev, 0xFE, &data);
440 adapter->is_virtfn = (data != 0xAA);
444 static inline void be_vf_eth_addr_generate(struct be_adapter *adapter, u8 *mac)
448 addr = jhash(adapter->netdev->dev_addr, ETH_ALEN, 0);
450 mac[5] = (u8)(addr & 0xFF);
451 mac[4] = (u8)((addr >> 8) & 0xFF);
452 mac[3] = (u8)((addr >> 16) & 0xFF);
458 extern void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm,
460 extern void be_link_status_update(struct be_adapter *adapter, bool link_up);
461 extern void netdev_stats_update(struct be_adapter *adapter);
462 extern int be_load_fw(struct be_adapter *adapter, u8 *func);