Merge remote-tracking branch 'kspp/for-next/kspp'
[deliverable/linux.git] / drivers / net / ethernet / qlogic / qede / qede.h
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1/* QLogic qede NIC Driver
2* Copyright (c) 2015 QLogic Corporation
3*
4* This software is available under the terms of the GNU General Public License
5* (GPL) Version 2, available from the file COPYING in the main directory of
6* this source tree.
7*/
8
9#ifndef _QEDE_H_
10#define _QEDE_H_
11#include <linux/compiler.h>
12#include <linux/version.h>
13#include <linux/workqueue.h>
14#include <linux/netdevice.h>
15#include <linux/interrupt.h>
16#include <linux/bitmap.h>
17#include <linux/kernel.h>
18#include <linux/mutex.h>
19#include <linux/io.h>
20#include <linux/qed/common_hsi.h>
21#include <linux/qed/eth_common.h>
22#include <linux/qed/qed_if.h>
23#include <linux/qed/qed_chain.h>
24#include <linux/qed/qed_eth_if.h>
25
26#define QEDE_MAJOR_VERSION 8
831a8e6c 27#define QEDE_MINOR_VERSION 10
05fafbfb 28#define QEDE_REVISION_VERSION 9
7c2d7d74 29#define QEDE_ENGINEERING_VERSION 20
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30#define DRV_MODULE_VERSION __stringify(QEDE_MAJOR_VERSION) "." \
31 __stringify(QEDE_MINOR_VERSION) "." \
32 __stringify(QEDE_REVISION_VERSION) "." \
33 __stringify(QEDE_ENGINEERING_VERSION)
34
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35#define DRV_MODULE_SYM qede
36
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37struct qede_stats {
38 u64 no_buff_discards;
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39 u64 packet_too_big_discard;
40 u64 ttl0_discard;
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41 u64 rx_ucast_bytes;
42 u64 rx_mcast_bytes;
43 u64 rx_bcast_bytes;
44 u64 rx_ucast_pkts;
45 u64 rx_mcast_pkts;
46 u64 rx_bcast_pkts;
47 u64 mftag_filter_discards;
48 u64 mac_filter_discards;
49 u64 tx_ucast_bytes;
50 u64 tx_mcast_bytes;
51 u64 tx_bcast_bytes;
52 u64 tx_ucast_pkts;
53 u64 tx_mcast_pkts;
54 u64 tx_bcast_pkts;
55 u64 tx_err_drop_pkts;
56 u64 coalesced_pkts;
57 u64 coalesced_events;
58 u64 coalesced_aborts_num;
59 u64 non_coalesced_pkts;
60 u64 coalesced_bytes;
61
62 /* port */
63 u64 rx_64_byte_packets;
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64 u64 rx_65_to_127_byte_packets;
65 u64 rx_128_to_255_byte_packets;
66 u64 rx_256_to_511_byte_packets;
67 u64 rx_512_to_1023_byte_packets;
68 u64 rx_1024_to_1518_byte_packets;
69 u64 rx_1519_to_1522_byte_packets;
70 u64 rx_1519_to_2047_byte_packets;
71 u64 rx_2048_to_4095_byte_packets;
72 u64 rx_4096_to_9216_byte_packets;
73 u64 rx_9217_to_16383_byte_packets;
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74 u64 rx_crc_errors;
75 u64 rx_mac_crtl_frames;
76 u64 rx_pause_frames;
77 u64 rx_pfc_frames;
78 u64 rx_align_errors;
79 u64 rx_carrier_errors;
80 u64 rx_oversize_packets;
81 u64 rx_jabbers;
82 u64 rx_undersize_packets;
83 u64 rx_fragments;
84 u64 tx_64_byte_packets;
85 u64 tx_65_to_127_byte_packets;
86 u64 tx_128_to_255_byte_packets;
87 u64 tx_256_to_511_byte_packets;
88 u64 tx_512_to_1023_byte_packets;
89 u64 tx_1024_to_1518_byte_packets;
90 u64 tx_1519_to_2047_byte_packets;
91 u64 tx_2048_to_4095_byte_packets;
92 u64 tx_4096_to_9216_byte_packets;
93 u64 tx_9217_to_16383_byte_packets;
94 u64 tx_pause_frames;
95 u64 tx_pfc_frames;
96 u64 tx_lpi_entry_count;
97 u64 tx_total_collisions;
98 u64 brb_truncates;
99 u64 brb_discards;
100 u64 tx_mac_ctrl_frames;
101};
102
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103struct qede_vlan {
104 struct list_head list;
105 u16 vid;
106 bool configured;
107};
108
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109struct qede_dev {
110 struct qed_dev *cdev;
111 struct net_device *ndev;
112 struct pci_dev *pdev;
113
114 u32 dp_module;
115 u8 dp_level;
116
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117 u32 flags;
118#define QEDE_FLAG_IS_VF BIT(0)
119#define IS_VF(edev) (!!((edev)->flags & QEDE_FLAG_IS_VF))
120
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121 const struct qed_eth_ops *ops;
122
123 struct qed_dev_eth_info dev_info;
124#define QEDE_MAX_RSS_CNT(edev) ((edev)->dev_info.num_queues)
125#define QEDE_MAX_TSS_CNT(edev) ((edev)->dev_info.num_queues * \
126 (edev)->dev_info.num_tc)
127
2950219d 128 struct qede_fastpath *fp_array;
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129 u8 req_num_tx;
130 u8 fp_num_tx;
131 u8 req_num_rx;
132 u8 fp_num_rx;
133 u16 req_queues;
134 u16 num_queues;
e712d52b 135 u8 num_tc;
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136#define QEDE_QUEUE_CNT(edev) ((edev)->num_queues)
137#define QEDE_RSS_COUNT(edev) ((edev)->num_queues - (edev)->fp_num_tx)
138#define QEDE_TSS_COUNT(edev) (((edev)->num_queues - (edev)->fp_num_rx) * \
139 (edev)->num_tc)
140#define QEDE_TX_IDX(edev, txqidx) ((edev)->fp_num_rx + (txqidx) % \
141 QEDE_TSS_COUNT(edev))
142#define QEDE_TC_IDX(edev, txqidx) ((txqidx) / QEDE_TSS_COUNT(edev))
2950219d 143#define QEDE_TX_QUEUE(edev, txqidx) \
9a4d7e86 144 (&(edev)->fp_array[QEDE_TX_IDX((edev), (txqidx))].txqs[QEDE_TC_IDX(\
2950219d 145 (edev), (txqidx))])
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146
147 struct qed_int_info int_info;
148 unsigned char primary_mac[ETH_ALEN];
149
150 /* Smaller private varaiant of the RTNL lock */
151 struct mutex qede_lock;
152 u32 state; /* Protected by qede_lock */
2950219d 153 u16 rx_buf_size;
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154 u32 rx_copybreak;
155
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156 /* L2 header size + 2*VLANs (8 bytes) + LLC SNAP (8 bytes) */
157#define ETH_OVERHEAD (ETH_HLEN + 8 + 8)
158 /* Max supported alignment is 256 (8 shift)
159 * minimal alignment shift 6 is optimal for 57xxx HW performance
160 */
161#define QEDE_RX_ALIGN_SHIFT max(6, min(8, L1_CACHE_SHIFT))
162 /* We assume skb_build() uses sizeof(struct skb_shared_info) bytes
163 * at the end of skb->data, to avoid wasting a full cache line.
164 * This reduces memory use (skb->truesize).
165 */
166#define QEDE_FW_RX_ALIGN_END \
167 max_t(u64, 1UL << QEDE_RX_ALIGN_SHIFT, \
168 SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
169
133fac0e 170 struct qede_stats stats;
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171#define QEDE_RSS_INDIR_INITED BIT(0)
172#define QEDE_RSS_KEY_INITED BIT(1)
173#define QEDE_RSS_CAPS_INITED BIT(2)
174 u32 rss_params_inited; /* bit-field to track initialized rss params */
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175 struct qed_update_vport_rss_params rss_params;
176 u16 q_num_rx_buffers; /* Must be a power of two */
177 u16 q_num_tx_buffers; /* Must be a power of two */
0d8e0aa0 178
55482edc 179 bool gro_disable;
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180 struct list_head vlan_list;
181 u16 configured_vlans;
182 u16 non_configured_vlans;
183 bool accept_any_vlan;
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184 struct delayed_work sp_task;
185 unsigned long sp_flags;
b18e170c 186 u16 vxlan_dst_port;
9a109dd0 187 u16 geneve_dst_port;
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188};
189
190enum QEDE_STATE {
191 QEDE_STATE_CLOSED,
192 QEDE_STATE_OPEN,
193};
194
195#define HILO_U64(hi, lo) ((((u64)(hi)) << 32) + (lo))
196
197#define MAX_NUM_TC 8
198#define MAX_NUM_PRI 8
199
200/* The driver supports the new build_skb() API:
201 * RX ring buffer contains pointer to kmalloc() data only,
202 * skb are built only after the frame was DMA-ed.
203 */
204struct sw_rx_data {
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205 struct page *data;
206 dma_addr_t mapping;
207 unsigned int page_offset;
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208};
209
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210enum qede_agg_state {
211 QEDE_AGG_STATE_NONE = 0,
212 QEDE_AGG_STATE_START = 1,
213 QEDE_AGG_STATE_ERROR = 2
214};
215
216struct qede_agg_info {
217 struct sw_rx_data replace_buf;
218 dma_addr_t replace_buf_mapping;
219 struct sw_rx_data start_buf;
220 dma_addr_t start_buf_mapping;
221 struct eth_fast_path_rx_tpa_start_cqe start_cqe;
222 enum qede_agg_state agg_state;
223 struct sk_buff *skb;
224 int frag_id;
225 u16 vlan_tag;
226};
227
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228struct qede_rx_queue {
229 __le16 *hw_cons_ptr;
230 struct sw_rx_data *sw_rx_ring;
231 u16 sw_rx_cons;
232 u16 sw_rx_prod;
233 struct qed_chain rx_bd_ring;
234 struct qed_chain rx_comp_ring;
235 void __iomem *hw_rxq_prod_addr;
236
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237 /* GRO */
238 struct qede_agg_info tpa_info[ETH_TPA_MAX_AGGS_NUM];
239
2950219d 240 int rx_buf_size;
fc48b7a6 241 unsigned int rx_buf_seg_size;
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242
243 u16 num_rx_buffers;
244 u16 rxq_id;
245
68db9ec2 246 u64 rcv_pkts;
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247 u64 rx_hw_errors;
248 u64 rx_alloc_errors;
c72a6125 249 u64 rx_ip_frags;
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250};
251
252union db_prod {
253 struct eth_db_data data;
254 u32 raw;
255};
256
257struct sw_tx_bd {
258 struct sk_buff *skb;
259 u8 flags;
260/* Set on the first BD descriptor when there is a split BD */
261#define QEDE_TSO_SPLIT_BD BIT(0)
262};
263
264struct qede_tx_queue {
265 int index; /* Queue index */
266 __le16 *hw_cons_ptr;
267 struct sw_tx_bd *sw_tx_ring;
268 u16 sw_tx_cons;
269 u16 sw_tx_prod;
270 struct qed_chain tx_pbl;
271 void __iomem *doorbell_addr;
272 union db_prod tx_db;
273
274 u16 num_tx_buffers;
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275 u64 xmit_pkts;
276 u64 stopped_cnt;
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277
278 bool is_legacy;
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279};
280
281#define BD_UNMAP_ADDR(bd) HILO_U64(le32_to_cpu((bd)->addr.hi), \
282 le32_to_cpu((bd)->addr.lo))
283#define BD_SET_UNMAP_ADDR_LEN(bd, maddr, len) \
284 do { \
285 (bd)->addr.hi = cpu_to_le32(upper_32_bits(maddr)); \
286 (bd)->addr.lo = cpu_to_le32(lower_32_bits(maddr)); \
287 (bd)->nbytes = cpu_to_le16(len); \
288 } while (0)
289#define BD_UNMAP_LEN(bd) (le16_to_cpu((bd)->nbytes))
290
291struct qede_fastpath {
292 struct qede_dev *edev;
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293#define QEDE_FASTPATH_TX BIT(0)
294#define QEDE_FASTPATH_RX BIT(1)
295#define QEDE_FASTPATH_COMBINED (QEDE_FASTPATH_TX | QEDE_FASTPATH_RX)
296 u8 type;
297 u8 id;
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298 struct napi_struct napi;
299 struct qed_sb_info *sb_info;
300 struct qede_rx_queue *rxq;
301 struct qede_tx_queue *txqs;
302
303#define VEC_NAME_SIZE (sizeof(((struct net_device *)0)->name) + 8)
304 char name[VEC_NAME_SIZE];
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305};
306
307/* Debug print definitions */
308#define DP_NAME(edev) ((edev)->ndev->name)
309
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310#define XMIT_PLAIN 0
311#define XMIT_L4_CSUM BIT(0)
312#define XMIT_LSO BIT(1)
313#define XMIT_ENC BIT(2)
314
315#define QEDE_CSUM_ERROR BIT(0)
316#define QEDE_CSUM_UNNECESSARY BIT(1)
14db81de 317#define QEDE_TUNN_CSUM_UNNECESSARY BIT(2)
0d8e0aa0 318
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319#define QEDE_SP_RX_MODE 1
320#define QEDE_SP_VXLAN_PORT_CONFIG 2
9a109dd0 321#define QEDE_SP_GENEVE_PORT_CONFIG 3
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322
323union qede_reload_args {
324 u16 mtu;
325};
326
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327#ifdef CONFIG_DCB
328void qede_set_dcbnl_ops(struct net_device *ndev);
329#endif
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330void qede_config_debug(uint debug, u32 *p_dp_module, u8 *p_dp_level);
331void qede_set_ethtool_ops(struct net_device *netdev);
332void qede_reload(struct qede_dev *edev,
333 void (*func)(struct qede_dev *edev,
334 union qede_reload_args *args),
335 union qede_reload_args *args);
336int qede_change_mtu(struct net_device *dev, int new_mtu);
337void qede_fill_by_demand_stats(struct qede_dev *edev);
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338bool qede_has_rx_work(struct qede_rx_queue *rxq);
339int qede_txq_has_work(struct qede_tx_queue *txq);
340void qede_recycle_rx_bd_ring(struct qede_rx_queue *rxq, struct qede_dev *edev,
341 u8 count);
133fac0e 342
2950219d 343#define RX_RING_SIZE_POW 13
01ef7e05 344#define RX_RING_SIZE ((u16)BIT(RX_RING_SIZE_POW))
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345#define NUM_RX_BDS_MAX (RX_RING_SIZE - 1)
346#define NUM_RX_BDS_MIN 128
347#define NUM_RX_BDS_DEF NUM_RX_BDS_MAX
348
349#define TX_RING_SIZE_POW 13
01ef7e05 350#define TX_RING_SIZE ((u16)BIT(TX_RING_SIZE_POW))
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351#define NUM_TX_BDS_MAX (TX_RING_SIZE - 1)
352#define NUM_TX_BDS_MIN 128
353#define NUM_TX_BDS_DEF NUM_TX_BDS_MAX
354
3d789994 355#define QEDE_MIN_PKT_LEN 64
fc48b7a6 356#define QEDE_RX_HDR_SIZE 256
9a4d7e86 357#define for_each_queue(i) for (i = 0; i < edev->num_queues; i++)
2950219d 358
e712d52b 359#endif /* _QEDE_H_ */
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