2 * Copyright (C) 2005 - 2011 Emulex
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:
11 * linux-drivers@emulex.com
15 * Costa Mesa, CA 92626
21 #include <linux/pci.h>
22 #include <linux/etherdevice.h>
23 #include <linux/delay.h>
27 #include <linux/if_vlan.h>
28 #include <linux/workqueue.h>
29 #include <linux/interrupt.h>
30 #include <linux/firmware.h>
31 #include <linux/slab.h>
32 #include <linux/u64_stats_sync.h>
36 #define DRV_VER "4.0.100u"
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 */
52 #define OC_DEVICE_ID4 0xe228 /* Device id for VF in Lancer */
54 static inline char *nic_name(struct pci_dev *pdev)
56 switch (pdev->device) {
63 return OC_NAME_LANCER;
71 /* Number of bytes of an RX frame that are copied to skb->data */
72 #define BE_HDR_LEN ((u16) 64)
73 #define BE_MAX_JUMBO_FRAME_SIZE 9018
74 #define BE_MIN_MTU 256
76 #define BE_NUM_VLANS_SUPPORTED 64
78 #define BE_MAX_TX_FRAG_COUNT 30
80 #define EVNT_Q_LEN 1024
82 #define TX_CQ_LEN 1024
83 #define RX_Q_LEN 1024 /* Does not support any other value */
84 #define RX_CQ_LEN 1024
85 #define MCC_Q_LEN 128 /* total size not to exceed 8 pages */
86 #define MCC_CQ_LEN 256
88 #define MAX_RSS_QS 4 /* BE limit is 4 queues/port */
89 #define MAX_RX_QS (MAX_RSS_QS + 1) /* RSS qs + 1 def Rx */
91 #define BE_MAX_MSIX_VECTORS (MAX_RX_QS + 1)/* RX + TX */
92 #define BE_NAPI_WEIGHT 64
93 #define MAX_RX_POST BE_NAPI_WEIGHT /* Frags posted at a time */
94 #define RX_FRAGS_REFILL_WM (RX_Q_LEN - MAX_RX_POST)
104 struct be_queue_info {
105 struct be_dma_mem dma_mem;
107 u16 entry_size; /* Size of an element in the queue */
111 atomic_t used; /* Number of valid elements in the queue */
114 static inline u32 MODULO(u16 val, u16 limit)
116 BUG_ON(limit & (limit - 1));
117 return val & (limit - 1);
120 static inline void index_adv(u16 *index, u16 val, u16 limit)
122 *index = MODULO((*index + val), limit);
125 static inline void index_inc(u16 *index, u16 limit)
127 *index = MODULO((*index + 1), limit);
130 static inline void *queue_head_node(struct be_queue_info *q)
132 return q->dma_mem.va + q->head * q->entry_size;
135 static inline void *queue_tail_node(struct be_queue_info *q)
137 return q->dma_mem.va + q->tail * q->entry_size;
140 static inline void *queue_index_node(struct be_queue_info *q, u16 index)
142 return q->dma_mem.va + index * q->entry_size;
145 static inline void queue_head_inc(struct be_queue_info *q)
147 index_inc(&q->head, q->len);
150 static inline void queue_tail_inc(struct be_queue_info *q)
152 index_inc(&q->tail, q->len);
156 struct be_queue_info q;
159 /* Adaptive interrupt coalescing (AIC) info */
161 u16 min_eqd; /* in usecs */
162 u16 max_eqd; /* in usecs */
163 u16 cur_eqd; /* in usecs */
166 struct napi_struct napi;
170 struct be_queue_info q;
171 struct be_queue_info cq;
183 struct u64_stats_sync sync;
184 struct u64_stats_sync sync_compl;
188 struct be_queue_info q;
189 struct be_queue_info cq;
190 /* Remember the skbs that were transmitted */
191 struct sk_buff *sent_skb_list[TX_Q_LEN];
192 struct be_tx_stats stats;
195 /* Struct to remember the pages posted for rx frags */
196 struct be_rx_page_info {
198 DEFINE_DMA_UNMAP_ADDR(bus);
208 u32 rx_drops_no_skbs; /* skb allocation errors */
209 u32 rx_drops_no_frags; /* HW has no fetched frags */
210 u32 rx_post_fail; /* page post alloc failures */
211 u32 rx_polls; /* NAPI calls */
215 u32 rx_compl_err; /* completions with err set */
216 u32 rx_pps; /* pkts per second */
217 struct u64_stats_sync sync;
220 struct be_rx_compl_info {
240 struct be_adapter *adapter;
241 struct be_queue_info q;
242 struct be_queue_info cq;
243 struct be_rx_compl_info rxcp;
244 struct be_rx_page_info page_info_tbl[RX_Q_LEN];
245 struct be_eq_obj rx_eq;
246 struct be_rx_stats stats;
248 bool rx_post_starved; /* Zero rx frags have been posted to BE */
249 u32 cache_line_barrier[16];
252 struct be_drv_stats {
253 u32 be_on_die_temperature;
256 u32 rx_drops_no_pbuf;
257 u32 rx_drops_no_txpb;
258 u32 rx_drops_no_erx_descr;
259 u32 rx_drops_no_tpre_descr;
260 u32 rx_drops_too_many_frags;
261 u32 rx_drops_invalid_ring;
262 u32 forwarded_packets;
265 u32 rx_alignment_symbol_errors;
267 u32 rx_priority_pause_frames;
268 u32 rx_control_frames;
269 u32 rx_in_range_errors;
270 u32 rx_out_range_errors;
271 u32 rx_frame_too_long;
272 u32 rx_address_match_errors;
273 u32 rx_dropped_too_small;
274 u32 rx_dropped_too_short;
275 u32 rx_dropped_header_too_small;
276 u32 rx_dropped_tcp_length;
278 u32 rx_ip_checksum_errs;
279 u32 rx_tcp_checksum_errs;
280 u32 rx_udp_checksum_errs;
282 u32 tx_priority_pauseframes;
283 u32 tx_controlframes;
284 u32 rxpp_fifo_overflow_drop;
285 u32 rx_input_fifo_overflow_drop;
286 u32 pmem_fifo_overflow_drop;
291 unsigned char vf_mac_addr[ETH_ALEN];
299 struct pci_dev *pdev;
300 struct net_device *netdev;
303 u8 __iomem *db; /* Door Bell */
305 struct mutex mbox_lock; /* For serializing mbox cmds to BE card */
306 struct be_dma_mem mbox_mem;
307 /* Mbox mem is adjusted to align to 16 bytes. The allocated addr
308 * is stored for freeing purpose */
309 struct be_dma_mem mbox_mem_alloced;
311 struct be_mcc_obj mcc_obj;
312 spinlock_t mcc_lock; /* For serializing mcc cmds to BE card */
313 spinlock_t mcc_cq_lock;
315 struct msix_entry msix_entries[BE_MAX_MSIX_VECTORS];
320 struct be_eq_obj tx_eq;
321 struct be_tx_obj tx_obj[MAX_TX_QS];
324 u32 cache_line_break[8];
327 struct be_rx_obj rx_obj[MAX_RX_QS];
329 u32 big_page_size; /* Compounded page size shared by rx wrbs */
332 struct be_drv_stats drv_stats;
335 u16 max_vlans; /* Number of vlans supported */
336 u8 vlan_tag[VLAN_N_VID];
337 u8 vlan_prio_bmap; /* Available Priority BitMap */
338 u16 recommended_prio; /* Recommended Priority */
339 struct be_dma_mem rx_filter; /* Cmd DMA mem for rx-filter */
341 struct be_dma_mem stats_cmd;
342 /* Work queue used to perform periodic tasks like getting statistics */
343 struct delayed_work work;
346 /* Ethtool knobs and info */
347 char fw_ver[FW_VER_LEN];
348 int if_handle; /* Used to configure filtering */
349 u32 pmac_id; /* MAC addr handle used by BE card */
350 u32 beacon_state; /* for set_phys_id */
358 u32 rx_fc; /* Rx flow control */
359 u32 tx_fc; /* Tx flow control */
366 u8 generation; /* BladeEngine ASIC generation */
368 struct completion flash_compl;
372 struct be_vf_cfg *vf_cfg;
379 #define be_physfn(adapter) (!adapter->is_virtfn)
381 /* BladeEngine Generation numbers */
387 #define lancer_chip(adapter) ((adapter->pdev->device == OC_DEVICE_ID3) || \
388 (adapter->pdev->device == OC_DEVICE_ID4))
390 extern const struct ethtool_ops be_ethtool_ops;
392 #define msix_enabled(adapter) (adapter->num_msix_vec > 0)
393 #define tx_stats(txo) (&txo->stats)
394 #define rx_stats(rxo) (&rxo->stats)
396 #define BE_SET_NETDEV_OPS(netdev, ops) (netdev->netdev_ops = ops)
398 #define for_all_rx_queues(adapter, rxo, i) \
399 for (i = 0, rxo = &adapter->rx_obj[i]; i < adapter->num_rx_qs; \
402 /* Just skip the first default non-rss queue */
403 #define for_all_rss_queues(adapter, rxo, i) \
404 for (i = 0, rxo = &adapter->rx_obj[i+1]; i < (adapter->num_rx_qs - 1);\
407 #define for_all_tx_queues(adapter, txo, i) \
408 for (i = 0, txo = &adapter->tx_obj[i]; i < adapter->num_tx_qs; \
411 #define PAGE_SHIFT_4K 12
412 #define PAGE_SIZE_4K (1 << PAGE_SHIFT_4K)
414 /* Returns number of pages spanned by the data starting at the given addr */
415 #define PAGES_4K_SPANNED(_address, size) \
416 ((u32)((((size_t)(_address) & (PAGE_SIZE_4K - 1)) + \
417 (size) + (PAGE_SIZE_4K - 1)) >> PAGE_SHIFT_4K))
419 /* Byte offset into the page corresponding to given address */
420 #define OFFSET_IN_PAGE(addr) \
421 ((size_t)(addr) & (PAGE_SIZE_4K-1))
423 /* Returns bit offset within a DWORD of a bitfield */
424 #define AMAP_BIT_OFFSET(_struct, field) \
425 (((size_t)&(((_struct *)0)->field))%32)
427 /* Returns the bit mask of the field that is NOT shifted into location. */
428 static inline u32 amap_mask(u32 bitsize)
430 return (bitsize == 32 ? 0xFFFFFFFF : (1 << bitsize) - 1);
434 amap_set(void *ptr, u32 dw_offset, u32 mask, u32 offset, u32 value)
436 u32 *dw = (u32 *) ptr + dw_offset;
437 *dw &= ~(mask << offset);
438 *dw |= (mask & value) << offset;
441 #define AMAP_SET_BITS(_struct, field, ptr, val) \
443 offsetof(_struct, field)/32, \
444 amap_mask(sizeof(((_struct *)0)->field)), \
445 AMAP_BIT_OFFSET(_struct, field), \
448 static inline u32 amap_get(void *ptr, u32 dw_offset, u32 mask, u32 offset)
450 u32 *dw = (u32 *) ptr;
451 return mask & (*(dw + dw_offset) >> offset);
454 #define AMAP_GET_BITS(_struct, field, ptr) \
456 offsetof(_struct, field)/32, \
457 amap_mask(sizeof(((_struct *)0)->field)), \
458 AMAP_BIT_OFFSET(_struct, field))
460 #define be_dws_cpu_to_le(wrb, len) swap_dws(wrb, len)
461 #define be_dws_le_to_cpu(wrb, len) swap_dws(wrb, len)
462 static inline void swap_dws(void *wrb, int len)
468 *dw = cpu_to_le32(*dw);
472 #endif /* __BIG_ENDIAN */
475 static inline u8 is_tcp_pkt(struct sk_buff *skb)
479 if (ip_hdr(skb)->version == 4)
480 val = (ip_hdr(skb)->protocol == IPPROTO_TCP);
481 else if (ip_hdr(skb)->version == 6)
482 val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_TCP);
487 static inline u8 is_udp_pkt(struct sk_buff *skb)
491 if (ip_hdr(skb)->version == 4)
492 val = (ip_hdr(skb)->protocol == IPPROTO_UDP);
493 else if (ip_hdr(skb)->version == 6)
494 val = (ipv6_hdr(skb)->nexthdr == NEXTHDR_UDP);
499 static inline void be_check_sriov_fn_type(struct be_adapter *adapter)
503 pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
504 adapter->is_virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0;
507 static inline void be_vf_eth_addr_generate(struct be_adapter *adapter, u8 *mac)
511 addr = jhash(adapter->netdev->dev_addr, ETH_ALEN, 0);
513 mac[5] = (u8)(addr & 0xFF);
514 mac[4] = (u8)((addr >> 8) & 0xFF);
515 mac[3] = (u8)((addr >> 16) & 0xFF);
516 /* Use the OUI from the current MAC address */
517 memcpy(mac, adapter->netdev->dev_addr, 3);
520 static inline bool be_multi_rxq(const struct be_adapter *adapter)
522 return adapter->num_rx_qs > 1;
525 extern void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm,
527 extern void be_link_status_update(struct be_adapter *adapter, u32 link_status);
528 extern void be_parse_stats(struct be_adapter *adapter);
529 extern int be_load_fw(struct be_adapter *adapter, u8 *func);