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[deliverable/linux.git] / drivers / net / ethernet / chelsio / cxgb4vf / t4vf_common.h
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1/*
2 * This file is part of the Chelsio T4 PCI-E SR-IOV Virtual Function Ethernet
3 * driver for Linux.
4 *
5 * Copyright (c) 2009-2010 Chelsio Communications, Inc. All rights reserved.
6 *
7 * This software is available to you under a choice of one of two
8 * licenses. You may choose to be licensed under the terms of the GNU
9 * General Public License (GPL) Version 2, available from the file
10 * COPYING in the main directory of this source tree, or the
11 * OpenIB.org BSD license below:
12 *
13 * Redistribution and use in source and binary forms, with or
14 * without modification, are permitted provided that the following
15 * conditions are met:
16 *
17 * - Redistributions of source code must retain the above
18 * copyright notice, this list of conditions and the following
19 * disclaimer.
20 *
21 * - Redistributions in binary form must reproduce the above
22 * copyright notice, this list of conditions and the following
23 * disclaimer in the documentation and/or other materials
24 * provided with the distribution.
25 *
26 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
27 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
28 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
29 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
30 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
31 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
32 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
33 * SOFTWARE.
34 */
35
36#ifndef __T4VF_COMMON_H__
37#define __T4VF_COMMON_H__
38
ae7b7576 39#include "../cxgb4/t4_hw.h"
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40#include "../cxgb4/t4fw_api.h"
41
622c62b5 42#define CHELSIO_CHIP_CODE(version, revision) (((version) << 4) | (revision))
70ee3666 43#define CHELSIO_CHIP_VERSION(code) (((code) >> 4) & 0xf)
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44#define CHELSIO_CHIP_RELEASE(code) ((code) & 0xf)
45
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46/* All T4 and later chips have their PCI-E Device IDs encoded as 0xVFPP where:
47 *
48 * V = "4" for T4; "5" for T5, etc. or
49 * = "a" for T4 FPGA; "b" for T4 FPGA, etc.
50 * F = "0" for PF 0..3; "4".."7" for PF4..7; and "8" for VFs
51 * PP = adapter product designation
52 */
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53#define CHELSIO_T4 0x4
54#define CHELSIO_T5 0x5
41fc2e41 55#define CHELSIO_T6 0x6
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56
57enum chip_type {
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58 T4_A1 = CHELSIO_CHIP_CODE(CHELSIO_T4, 1),
59 T4_A2 = CHELSIO_CHIP_CODE(CHELSIO_T4, 2),
622c62b5 60 T4_FIRST_REV = T4_A1,
70ee3666 61 T4_LAST_REV = T4_A2,
622c62b5 62
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63 T5_A0 = CHELSIO_CHIP_CODE(CHELSIO_T5, 0),
64 T5_A1 = CHELSIO_CHIP_CODE(CHELSIO_T5, 1),
65 T5_FIRST_REV = T5_A0,
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66 T5_LAST_REV = T5_A1,
67};
68
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69/*
70 * The "len16" field of a Firmware Command Structure ...
71 */
e2ac9628 72#define FW_LEN16(fw_struct) FW_CMD_LEN16_V(sizeof(fw_struct) / 16)
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73
74/*
75 * Per-VF statistics.
76 */
77struct t4vf_port_stats {
78 /*
79 * TX statistics.
80 */
81 u64 tx_bcast_bytes; /* broadcast */
82 u64 tx_bcast_frames;
83 u64 tx_mcast_bytes; /* multicast */
84 u64 tx_mcast_frames;
85 u64 tx_ucast_bytes; /* unicast */
86 u64 tx_ucast_frames;
87 u64 tx_drop_frames; /* TX dropped frames */
88 u64 tx_offload_bytes; /* offload */
89 u64 tx_offload_frames;
90
91 /*
92 * RX statistics.
93 */
94 u64 rx_bcast_bytes; /* broadcast */
95 u64 rx_bcast_frames;
96 u64 rx_mcast_bytes; /* multicast */
97 u64 rx_mcast_frames;
98 u64 rx_ucast_bytes;
99 u64 rx_ucast_frames; /* unicast */
100
101 u64 rx_err_frames; /* RX error frames */
102};
103
104/*
105 * Per-"port" (Virtual Interface) link configuration ...
106 */
107struct link_config {
108 unsigned int supported; /* link capabilities */
109 unsigned int advertising; /* advertised capabilities */
eb97ad99 110 unsigned short lp_advertising; /* peer advertised capabilities */
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111 unsigned short requested_speed; /* speed user has requested */
112 unsigned short speed; /* actual link speed */
113 unsigned char requested_fc; /* flow control user has requested */
114 unsigned char fc; /* actual link flow control */
115 unsigned char autoneg; /* autonegotiating? */
116 unsigned char link_ok; /* link up? */
117};
118
119enum {
120 PAUSE_RX = 1 << 0,
121 PAUSE_TX = 1 << 1,
122 PAUSE_AUTONEG = 1 << 2
123};
124
125/*
126 * General device parameters ...
127 */
128struct dev_params {
129 u32 fwrev; /* firmware version */
130 u32 tprev; /* TP Microcode Version */
131};
132
133/*
134 * Scatter Gather Engine parameters. These are almost all determined by the
135 * Physical Function Driver. We just need to grab them to see within which
136 * environment we're playing ...
137 */
138struct sge_params {
139 u32 sge_control; /* padding, boundaries, lengths, etc. */
ce8f407a 140 u32 sge_control2; /* T5: more of the same */
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141 u32 sge_host_page_size; /* PF0-7 page sizes */
142 u32 sge_egress_queues_per_page; /* PF0-7 egress queues/page */
143 u32 sge_ingress_queues_per_page;/* PF0-7 ingress queues/page */
e85c9a7a 144 u32 sge_vf_hps; /* host page size for our vf */
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145 u32 sge_vf_eq_qpp; /* egress queues/page for our VF */
146 u32 sge_vf_iq_qpp; /* ingress queues/page for our VF */
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147 u32 sge_fl_buffer_size[16]; /* free list buffer sizes */
148 u32 sge_ingress_rx_threshold; /* RX counter interrupt threshold[4] */
50d21a66 149 u32 sge_congestion_control; /* congestion thresholds, etc. */
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150 u32 sge_timer_value_0_and_1; /* interrupt coalescing timer values */
151 u32 sge_timer_value_2_and_3;
152 u32 sge_timer_value_4_and_5;
153};
154
155/*
156 * Vital Product Data parameters.
157 */
158struct vpd_params {
159 u32 cclk; /* Core Clock (KHz) */
160};
161
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162/* Stores chip specific parameters */
163struct arch_specific_params {
164 u32 sge_fl_db;
165 u16 mps_tcam_size;
166};
167
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168/*
169 * Global Receive Side Scaling (RSS) parameters in host-native format.
170 */
171struct rss_params {
172 unsigned int mode; /* RSS mode */
173 union {
174 struct {
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175 unsigned int synmapen:1; /* SYN Map Enable */
176 unsigned int syn4tupenipv6:1; /* enable hashing 4-tuple IPv6 SYNs */
177 unsigned int syn2tupenipv6:1; /* enable hashing 2-tuple IPv6 SYNs */
178 unsigned int syn4tupenipv4:1; /* enable hashing 4-tuple IPv4 SYNs */
179 unsigned int syn2tupenipv4:1; /* enable hashing 2-tuple IPv4 SYNs */
180 unsigned int ofdmapen:1; /* Offload Map Enable */
181 unsigned int tnlmapen:1; /* Tunnel Map Enable */
182 unsigned int tnlalllookup:1; /* Tunnel All Lookup */
183 unsigned int hashtoeplitz:1; /* use Toeplitz hash */
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184 } basicvirtual;
185 } u;
186};
187
188/*
189 * Virtual Interface RSS Configuration in host-native format.
190 */
191union rss_vi_config {
192 struct {
193 u16 defaultq; /* Ingress Queue ID for !tnlalllookup */
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194 unsigned int ip6fourtupen:1; /* hash 4-tuple IPv6 ingress packets */
195 unsigned int ip6twotupen:1; /* hash 2-tuple IPv6 ingress packets */
196 unsigned int ip4fourtupen:1; /* hash 4-tuple IPv4 ingress packets */
197 unsigned int ip4twotupen:1; /* hash 2-tuple IPv4 ingress packets */
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198 int udpen; /* hash 4-tuple UDP ingress packets */
199 } basicvirtual;
200};
201
202/*
203 * Maximum resources provisioned for a PCI VF.
204 */
205struct vf_resources {
206 unsigned int nvi; /* N virtual interfaces */
207 unsigned int neq; /* N egress Qs */
208 unsigned int nethctrl; /* N egress ETH or CTRL Qs */
209 unsigned int niqflint; /* N ingress Qs/w free list(s) & intr */
210 unsigned int niq; /* N ingress Qs */
211 unsigned int tc; /* PCI-E traffic class */
212 unsigned int pmask; /* port access rights mask */
213 unsigned int nexactf; /* N exact MPS filters */
214 unsigned int r_caps; /* read capabilities */
215 unsigned int wx_caps; /* write/execute capabilities */
216};
217
218/*
219 * Per-"adapter" (Virtual Function) parameters.
220 */
221struct adapter_params {
222 struct dev_params dev; /* general device parameters */
223 struct sge_params sge; /* Scatter Gather Engine */
224 struct vpd_params vpd; /* Vital Product Data */
225 struct rss_params rss; /* Receive Side Scaling */
226 struct vf_resources vfres; /* Virtual Function Resource limits */
41fc2e41 227 struct arch_specific_params arch; /* chip specific params */
70ee3666 228 enum chip_type chip; /* chip code */
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229 u8 nports; /* # of Ethernet "ports" */
230};
231
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232/* Firmware Mailbox Command/Reply log. All values are in Host-Endian format.
233 * The access and execute times are signed in order to accommodate negative
234 * error returns.
235 */
236struct mbox_cmd {
237 u64 cmd[MBOX_LEN / 8]; /* a Firmware Mailbox Command/Reply */
238 u64 timestamp; /* OS-dependent timestamp */
239 u32 seqno; /* sequence number */
240 s16 access; /* time (ms) to access mailbox */
241 s16 execute; /* time (ms) to execute */
242};
243
244struct mbox_cmd_log {
245 unsigned int size; /* number of entries in the log */
246 unsigned int cursor; /* next position in the log to write */
247 u32 seqno; /* next sequence number */
248 /* variable length mailbox command log starts here */
249};
250
251/* Given a pointer to a Firmware Mailbox Command Log and a log entry index,
252 * return a pointer to the specified entry.
253 */
254static inline struct mbox_cmd *mbox_cmd_log_entry(struct mbox_cmd_log *log,
255 unsigned int entry_idx)
256{
257 return &((struct mbox_cmd *)&(log)[1])[entry_idx];
258}
259
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260#include "adapter.h"
261
262#ifndef PCI_VENDOR_ID_CHELSIO
263# define PCI_VENDOR_ID_CHELSIO 0x1425
264#endif
265
266#define for_each_port(adapter, iter) \
267 for (iter = 0; iter < (adapter)->params.nports; iter++)
268
269static inline bool is_10g_port(const struct link_config *lc)
270{
5ad24def 271 return (lc->supported & FW_PORT_CAP_SPEED_10G) != 0;
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272}
273
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274static inline bool is_x_10g_port(const struct link_config *lc)
275{
276 return (lc->supported & FW_PORT_CAP_SPEED_10G) != 0 ||
277 (lc->supported & FW_PORT_CAP_SPEED_40G) != 0;
278}
279
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280static inline unsigned int core_ticks_per_usec(const struct adapter *adapter)
281{
282 return adapter->params.vpd.cclk / 1000;
283}
284
285static inline unsigned int us_to_core_ticks(const struct adapter *adapter,
286 unsigned int us)
287{
288 return (us * adapter->params.vpd.cclk) / 1000;
289}
290
291static inline unsigned int core_ticks_to_us(const struct adapter *adapter,
292 unsigned int ticks)
293{
294 return (ticks * 1000) / adapter->params.vpd.cclk;
295}
296
297int t4vf_wr_mbox_core(struct adapter *, const void *, int, void *, bool);
298
299static inline int t4vf_wr_mbox(struct adapter *adapter, const void *cmd,
300 int size, void *rpl)
301{
302 return t4vf_wr_mbox_core(adapter, cmd, size, rpl, true);
303}
304
305static inline int t4vf_wr_mbox_ns(struct adapter *adapter, const void *cmd,
306 int size, void *rpl)
307{
308 return t4vf_wr_mbox_core(adapter, cmd, size, rpl, false);
309}
310
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311#define CHELSIO_PCI_ID_VER(dev_id) ((dev_id) >> 12)
312
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313static inline int is_t4(enum chip_type chip)
314{
70ee3666 315 return CHELSIO_CHIP_VERSION(chip) == CHELSIO_T4;
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316}
317
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318/**
319 * hash_mac_addr - return the hash value of a MAC address
320 * @addr: the 48-bit Ethernet MAC address
321 *
322 * Hashes a MAC address according to the hash function used by hardware
323 * inexact (hash) address matching.
324 */
325static inline int hash_mac_addr(const u8 *addr)
326{
327 u32 a = ((u32)addr[0] << 16) | ((u32)addr[1] << 8) | addr[2];
328 u32 b = ((u32)addr[3] << 16) | ((u32)addr[4] << 8) | addr[5];
329
330 a ^= b;
331 a ^= (a >> 12);
332 a ^= (a >> 6);
333 return a & 0x3f;
334}
335
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336int t4vf_wait_dev_ready(struct adapter *);
337int t4vf_port_init(struct adapter *, int);
16f8bd4b 338
e68e6133 339int t4vf_fw_reset(struct adapter *);
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340int t4vf_set_params(struct adapter *, unsigned int, const u32 *, const u32 *);
341
cb440364 342int t4vf_fl_pkt_align(struct adapter *adapter);
e85c9a7a 343enum t4_bar2_qtype { T4_BAR2_QTYPE_EGRESS, T4_BAR2_QTYPE_INGRESS };
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344int t4vf_bar2_sge_qregs(struct adapter *adapter,
345 unsigned int qid,
346 enum t4_bar2_qtype qtype,
347 u64 *pbar2_qoffset,
348 unsigned int *pbar2_qid);
e85c9a7a 349
858aa65c 350unsigned int t4vf_get_pf_from_vf(struct adapter *);
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351int t4vf_get_sge_params(struct adapter *);
352int t4vf_get_vpd_params(struct adapter *);
353int t4vf_get_dev_params(struct adapter *);
354int t4vf_get_rss_glb_config(struct adapter *);
355int t4vf_get_vfres(struct adapter *);
356
357int t4vf_read_rss_vi_config(struct adapter *, unsigned int,
358 union rss_vi_config *);
359int t4vf_write_rss_vi_config(struct adapter *, unsigned int,
360 union rss_vi_config *);
361int t4vf_config_rss_range(struct adapter *, unsigned int, int, int,
362 const u16 *, int);
363
364int t4vf_alloc_vi(struct adapter *, int);
365int t4vf_free_vi(struct adapter *, int);
366int t4vf_enable_vi(struct adapter *, unsigned int, bool, bool);
367int t4vf_identify_port(struct adapter *, unsigned int, unsigned int);
368
369int t4vf_set_rxmode(struct adapter *, unsigned int, int, int, int, int, int,
370 bool);
371int t4vf_alloc_mac_filt(struct adapter *, unsigned int, bool, unsigned int,
372 const u8 **, u16 *, u64 *, bool);
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373int t4vf_free_mac_filt(struct adapter *, unsigned int, unsigned int naddr,
374 const u8 **, bool);
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375int t4vf_change_mac(struct adapter *, unsigned int, int, const u8 *, bool);
376int t4vf_set_addr_hash(struct adapter *, unsigned int, bool, u64, bool);
377int t4vf_get_port_stats(struct adapter *, int, struct t4vf_port_stats *);
378
379int t4vf_iq_free(struct adapter *, unsigned int, unsigned int, unsigned int,
380 unsigned int);
381int t4vf_eth_eq_free(struct adapter *, unsigned int);
382
383int t4vf_handle_fw_rpl(struct adapter *, const __be64 *);
e0a8b34a 384int t4vf_prep_adapter(struct adapter *);
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385int t4vf_get_vf_mac_acl(struct adapter *adapter, unsigned int pf,
386 unsigned int *naddr, u8 *addr);
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387
388#endif /* __T4VF_COMMON_H__ */
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