Merge remote-tracking branch 'xtensa/for_next'
[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
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28#define QEDE_REVISION_VERSION 1
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;
39 u64 rx_ucast_bytes;
40 u64 rx_mcast_bytes;
41 u64 rx_bcast_bytes;
42 u64 rx_ucast_pkts;
43 u64 rx_mcast_pkts;
44 u64 rx_bcast_pkts;
45 u64 mftag_filter_discards;
46 u64 mac_filter_discards;
47 u64 tx_ucast_bytes;
48 u64 tx_mcast_bytes;
49 u64 tx_bcast_bytes;
50 u64 tx_ucast_pkts;
51 u64 tx_mcast_pkts;
52 u64 tx_bcast_pkts;
53 u64 tx_err_drop_pkts;
54 u64 coalesced_pkts;
55 u64 coalesced_events;
56 u64 coalesced_aborts_num;
57 u64 non_coalesced_pkts;
58 u64 coalesced_bytes;
59
60 /* port */
61 u64 rx_64_byte_packets;
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62 u64 rx_65_to_127_byte_packets;
63 u64 rx_128_to_255_byte_packets;
64 u64 rx_256_to_511_byte_packets;
65 u64 rx_512_to_1023_byte_packets;
66 u64 rx_1024_to_1518_byte_packets;
67 u64 rx_1519_to_1522_byte_packets;
68 u64 rx_1519_to_2047_byte_packets;
69 u64 rx_2048_to_4095_byte_packets;
70 u64 rx_4096_to_9216_byte_packets;
71 u64 rx_9217_to_16383_byte_packets;
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72 u64 rx_crc_errors;
73 u64 rx_mac_crtl_frames;
74 u64 rx_pause_frames;
75 u64 rx_pfc_frames;
76 u64 rx_align_errors;
77 u64 rx_carrier_errors;
78 u64 rx_oversize_packets;
79 u64 rx_jabbers;
80 u64 rx_undersize_packets;
81 u64 rx_fragments;
82 u64 tx_64_byte_packets;
83 u64 tx_65_to_127_byte_packets;
84 u64 tx_128_to_255_byte_packets;
85 u64 tx_256_to_511_byte_packets;
86 u64 tx_512_to_1023_byte_packets;
87 u64 tx_1024_to_1518_byte_packets;
88 u64 tx_1519_to_2047_byte_packets;
89 u64 tx_2048_to_4095_byte_packets;
90 u64 tx_4096_to_9216_byte_packets;
91 u64 tx_9217_to_16383_byte_packets;
92 u64 tx_pause_frames;
93 u64 tx_pfc_frames;
94 u64 tx_lpi_entry_count;
95 u64 tx_total_collisions;
96 u64 brb_truncates;
97 u64 brb_discards;
98 u64 tx_mac_ctrl_frames;
99};
100
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101struct qede_vlan {
102 struct list_head list;
103 u16 vid;
104 bool configured;
105};
106
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107struct qede_dev {
108 struct qed_dev *cdev;
109 struct net_device *ndev;
110 struct pci_dev *pdev;
111
112 u32 dp_module;
113 u8 dp_level;
114
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115 u32 flags;
116#define QEDE_FLAG_IS_VF BIT(0)
117#define IS_VF(edev) (!!((edev)->flags & QEDE_FLAG_IS_VF))
118
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119 const struct qed_eth_ops *ops;
120
121 struct qed_dev_eth_info dev_info;
122#define QEDE_MAX_RSS_CNT(edev) ((edev)->dev_info.num_queues)
123#define QEDE_MAX_TSS_CNT(edev) ((edev)->dev_info.num_queues * \
124 (edev)->dev_info.num_tc)
125
2950219d 126 struct qede_fastpath *fp_array;
8edf049d 127 u16 req_rss;
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128 u16 num_rss;
129 u8 num_tc;
130#define QEDE_RSS_CNT(edev) ((edev)->num_rss)
131#define QEDE_TSS_CNT(edev) ((edev)->num_rss * \
132 (edev)->num_tc)
133#define QEDE_TSS_IDX(edev, txqidx) ((txqidx) % (edev)->num_rss)
134#define QEDE_TC_IDX(edev, txqidx) ((txqidx) / (edev)->num_rss)
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135#define QEDE_TX_QUEUE(edev, txqidx) \
136 (&(edev)->fp_array[QEDE_TSS_IDX((edev), (txqidx))].txqs[QEDE_TC_IDX( \
137 (edev), (txqidx))])
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138
139 struct qed_int_info int_info;
140 unsigned char primary_mac[ETH_ALEN];
141
142 /* Smaller private varaiant of the RTNL lock */
143 struct mutex qede_lock;
144 u32 state; /* Protected by qede_lock */
2950219d 145 u16 rx_buf_size;
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146 u32 rx_copybreak;
147
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148 /* L2 header size + 2*VLANs (8 bytes) + LLC SNAP (8 bytes) */
149#define ETH_OVERHEAD (ETH_HLEN + 8 + 8)
150 /* Max supported alignment is 256 (8 shift)
151 * minimal alignment shift 6 is optimal for 57xxx HW performance
152 */
153#define QEDE_RX_ALIGN_SHIFT max(6, min(8, L1_CACHE_SHIFT))
154 /* We assume skb_build() uses sizeof(struct skb_shared_info) bytes
155 * at the end of skb->data, to avoid wasting a full cache line.
156 * This reduces memory use (skb->truesize).
157 */
158#define QEDE_FW_RX_ALIGN_END \
159 max_t(u64, 1UL << QEDE_RX_ALIGN_SHIFT, \
160 SKB_DATA_ALIGN(sizeof(struct skb_shared_info)))
161
133fac0e 162 struct qede_stats stats;
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163#define QEDE_RSS_INDIR_INITED BIT(0)
164#define QEDE_RSS_KEY_INITED BIT(1)
165#define QEDE_RSS_CAPS_INITED BIT(2)
166 u32 rss_params_inited; /* bit-field to track initialized rss params */
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167 struct qed_update_vport_rss_params rss_params;
168 u16 q_num_rx_buffers; /* Must be a power of two */
169 u16 q_num_tx_buffers; /* Must be a power of two */
0d8e0aa0 170
55482edc 171 bool gro_disable;
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172 struct list_head vlan_list;
173 u16 configured_vlans;
174 u16 non_configured_vlans;
175 bool accept_any_vlan;
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176 struct delayed_work sp_task;
177 unsigned long sp_flags;
b18e170c 178 u16 vxlan_dst_port;
9a109dd0 179 u16 geneve_dst_port;
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180};
181
182enum QEDE_STATE {
183 QEDE_STATE_CLOSED,
184 QEDE_STATE_OPEN,
185};
186
187#define HILO_U64(hi, lo) ((((u64)(hi)) << 32) + (lo))
188
189#define MAX_NUM_TC 8
190#define MAX_NUM_PRI 8
191
192/* The driver supports the new build_skb() API:
193 * RX ring buffer contains pointer to kmalloc() data only,
194 * skb are built only after the frame was DMA-ed.
195 */
196struct sw_rx_data {
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197 struct page *data;
198 dma_addr_t mapping;
199 unsigned int page_offset;
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200};
201
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202enum qede_agg_state {
203 QEDE_AGG_STATE_NONE = 0,
204 QEDE_AGG_STATE_START = 1,
205 QEDE_AGG_STATE_ERROR = 2
206};
207
208struct qede_agg_info {
209 struct sw_rx_data replace_buf;
210 dma_addr_t replace_buf_mapping;
211 struct sw_rx_data start_buf;
212 dma_addr_t start_buf_mapping;
213 struct eth_fast_path_rx_tpa_start_cqe start_cqe;
214 enum qede_agg_state agg_state;
215 struct sk_buff *skb;
216 int frag_id;
217 u16 vlan_tag;
218};
219
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220struct qede_rx_queue {
221 __le16 *hw_cons_ptr;
222 struct sw_rx_data *sw_rx_ring;
223 u16 sw_rx_cons;
224 u16 sw_rx_prod;
225 struct qed_chain rx_bd_ring;
226 struct qed_chain rx_comp_ring;
227 void __iomem *hw_rxq_prod_addr;
228
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229 /* GRO */
230 struct qede_agg_info tpa_info[ETH_TPA_MAX_AGGS_NUM];
231
2950219d 232 int rx_buf_size;
fc48b7a6 233 unsigned int rx_buf_seg_size;
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234
235 u16 num_rx_buffers;
236 u16 rxq_id;
237
238 u64 rx_hw_errors;
239 u64 rx_alloc_errors;
c72a6125 240 u64 rx_ip_frags;
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241};
242
243union db_prod {
244 struct eth_db_data data;
245 u32 raw;
246};
247
248struct sw_tx_bd {
249 struct sk_buff *skb;
250 u8 flags;
251/* Set on the first BD descriptor when there is a split BD */
252#define QEDE_TSO_SPLIT_BD BIT(0)
253};
254
255struct qede_tx_queue {
256 int index; /* Queue index */
257 __le16 *hw_cons_ptr;
258 struct sw_tx_bd *sw_tx_ring;
259 u16 sw_tx_cons;
260 u16 sw_tx_prod;
261 struct qed_chain tx_pbl;
262 void __iomem *doorbell_addr;
263 union db_prod tx_db;
264
265 u16 num_tx_buffers;
266};
267
268#define BD_UNMAP_ADDR(bd) HILO_U64(le32_to_cpu((bd)->addr.hi), \
269 le32_to_cpu((bd)->addr.lo))
270#define BD_SET_UNMAP_ADDR_LEN(bd, maddr, len) \
271 do { \
272 (bd)->addr.hi = cpu_to_le32(upper_32_bits(maddr)); \
273 (bd)->addr.lo = cpu_to_le32(lower_32_bits(maddr)); \
274 (bd)->nbytes = cpu_to_le16(len); \
275 } while (0)
276#define BD_UNMAP_LEN(bd) (le16_to_cpu((bd)->nbytes))
277
278struct qede_fastpath {
279 struct qede_dev *edev;
280 u8 rss_id;
281 struct napi_struct napi;
282 struct qed_sb_info *sb_info;
283 struct qede_rx_queue *rxq;
284 struct qede_tx_queue *txqs;
285
286#define VEC_NAME_SIZE (sizeof(((struct net_device *)0)->name) + 8)
287 char name[VEC_NAME_SIZE];
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288};
289
290/* Debug print definitions */
291#define DP_NAME(edev) ((edev)->ndev->name)
292
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293#define XMIT_PLAIN 0
294#define XMIT_L4_CSUM BIT(0)
295#define XMIT_LSO BIT(1)
296#define XMIT_ENC BIT(2)
297
298#define QEDE_CSUM_ERROR BIT(0)
299#define QEDE_CSUM_UNNECESSARY BIT(1)
14db81de 300#define QEDE_TUNN_CSUM_UNNECESSARY BIT(2)
0d8e0aa0 301
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302#define QEDE_SP_RX_MODE 1
303#define QEDE_SP_VXLAN_PORT_CONFIG 2
9a109dd0 304#define QEDE_SP_GENEVE_PORT_CONFIG 3
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305
306union qede_reload_args {
307 u16 mtu;
308};
309
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310#ifdef CONFIG_DCB
311void qede_set_dcbnl_ops(struct net_device *ndev);
312#endif
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313void qede_config_debug(uint debug, u32 *p_dp_module, u8 *p_dp_level);
314void qede_set_ethtool_ops(struct net_device *netdev);
315void qede_reload(struct qede_dev *edev,
316 void (*func)(struct qede_dev *edev,
317 union qede_reload_args *args),
318 union qede_reload_args *args);
319int qede_change_mtu(struct net_device *dev, int new_mtu);
320void qede_fill_by_demand_stats(struct qede_dev *edev);
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321bool qede_has_rx_work(struct qede_rx_queue *rxq);
322int qede_txq_has_work(struct qede_tx_queue *txq);
323void qede_recycle_rx_bd_ring(struct qede_rx_queue *rxq, struct qede_dev *edev,
324 u8 count);
133fac0e 325
2950219d 326#define RX_RING_SIZE_POW 13
01ef7e05 327#define RX_RING_SIZE ((u16)BIT(RX_RING_SIZE_POW))
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328#define NUM_RX_BDS_MAX (RX_RING_SIZE - 1)
329#define NUM_RX_BDS_MIN 128
330#define NUM_RX_BDS_DEF NUM_RX_BDS_MAX
331
332#define TX_RING_SIZE_POW 13
01ef7e05 333#define TX_RING_SIZE ((u16)BIT(TX_RING_SIZE_POW))
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334#define NUM_TX_BDS_MAX (TX_RING_SIZE - 1)
335#define NUM_TX_BDS_MIN 128
336#define NUM_TX_BDS_DEF NUM_TX_BDS_MAX
337
3d789994 338#define QEDE_MIN_PKT_LEN 64
fc48b7a6 339#define QEDE_RX_HDR_SIZE 256
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340#define for_each_rss(i) for (i = 0; i < edev->num_rss; i++)
341
e712d52b 342#endif /* _QEDE_H_ */
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