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
39 #include "../cxgb4/t4fw_api.h"
40
41 #define CHELSIO_CHIP_CODE(version, revision) (((version) << 4) | (revision))
42 #define CHELSIO_CHIP_VERSION(code) (((code) >> 4) & 0xf)
43 #define CHELSIO_CHIP_RELEASE(code) ((code) & 0xf)
44
45 /* All T4 and later chips have their PCI-E Device IDs encoded as 0xVFPP where:
46 *
47 * V = "4" for T4; "5" for T5, etc. or
48 * = "a" for T4 FPGA; "b" for T4 FPGA, etc.
49 * F = "0" for PF 0..3; "4".."7" for PF4..7; and "8" for VFs
50 * PP = adapter product designation
51 */
52 #define CHELSIO_T4 0x4
53 #define CHELSIO_T5 0x5
54
55 enum chip_type {
56 T4_A1 = CHELSIO_CHIP_CODE(CHELSIO_T4, 1),
57 T4_A2 = CHELSIO_CHIP_CODE(CHELSIO_T4, 2),
58 T4_FIRST_REV = T4_A1,
59 T4_LAST_REV = T4_A2,
60
61 T5_A0 = CHELSIO_CHIP_CODE(CHELSIO_T5, 0),
62 T5_A1 = CHELSIO_CHIP_CODE(CHELSIO_T5, 1),
63 T5_FIRST_REV = T5_A0,
64 T5_LAST_REV = T5_A1,
65 };
66
67 /*
68 * The "len16" field of a Firmware Command Structure ...
69 */
70 #define FW_LEN16(fw_struct) FW_CMD_LEN16(sizeof(fw_struct) / 16)
71
72 /*
73 * Per-VF statistics.
74 */
75 struct t4vf_port_stats {
76 /*
77 * TX statistics.
78 */
79 u64 tx_bcast_bytes; /* broadcast */
80 u64 tx_bcast_frames;
81 u64 tx_mcast_bytes; /* multicast */
82 u64 tx_mcast_frames;
83 u64 tx_ucast_bytes; /* unicast */
84 u64 tx_ucast_frames;
85 u64 tx_drop_frames; /* TX dropped frames */
86 u64 tx_offload_bytes; /* offload */
87 u64 tx_offload_frames;
88
89 /*
90 * RX statistics.
91 */
92 u64 rx_bcast_bytes; /* broadcast */
93 u64 rx_bcast_frames;
94 u64 rx_mcast_bytes; /* multicast */
95 u64 rx_mcast_frames;
96 u64 rx_ucast_bytes;
97 u64 rx_ucast_frames; /* unicast */
98
99 u64 rx_err_frames; /* RX error frames */
100 };
101
102 /*
103 * Per-"port" (Virtual Interface) link configuration ...
104 */
105 struct link_config {
106 unsigned int supported; /* link capabilities */
107 unsigned int advertising; /* advertised capabilities */
108 unsigned short requested_speed; /* speed user has requested */
109 unsigned short speed; /* actual link speed */
110 unsigned char requested_fc; /* flow control user has requested */
111 unsigned char fc; /* actual link flow control */
112 unsigned char autoneg; /* autonegotiating? */
113 unsigned char link_ok; /* link up? */
114 };
115
116 enum {
117 PAUSE_RX = 1 << 0,
118 PAUSE_TX = 1 << 1,
119 PAUSE_AUTONEG = 1 << 2
120 };
121
122 /*
123 * General device parameters ...
124 */
125 struct dev_params {
126 u32 fwrev; /* firmware version */
127 u32 tprev; /* TP Microcode Version */
128 };
129
130 /*
131 * Scatter Gather Engine parameters. These are almost all determined by the
132 * Physical Function Driver. We just need to grab them to see within which
133 * environment we're playing ...
134 */
135 struct sge_params {
136 u32 sge_control; /* padding, boundaries, lengths, etc. */
137 u32 sge_control2; /* T5: more of the same */
138 u32 sge_host_page_size; /* RDMA page sizes */
139 u32 sge_queues_per_page; /* RDMA queues/page */
140 u32 sge_user_mode_limits; /* limits for BAR2 user mode accesses */
141 u32 sge_fl_buffer_size[16]; /* free list buffer sizes */
142 u32 sge_ingress_rx_threshold; /* RX counter interrupt threshold[4] */
143 u32 sge_congestion_control; /* congestion thresholds, etc. */
144 u32 sge_timer_value_0_and_1; /* interrupt coalescing timer values */
145 u32 sge_timer_value_2_and_3;
146 u32 sge_timer_value_4_and_5;
147 };
148
149 /*
150 * Vital Product Data parameters.
151 */
152 struct vpd_params {
153 u32 cclk; /* Core Clock (KHz) */
154 };
155
156 /*
157 * Global Receive Side Scaling (RSS) parameters in host-native format.
158 */
159 struct rss_params {
160 unsigned int mode; /* RSS mode */
161 union {
162 struct {
163 unsigned int synmapen:1; /* SYN Map Enable */
164 unsigned int syn4tupenipv6:1; /* enable hashing 4-tuple IPv6 SYNs */
165 unsigned int syn2tupenipv6:1; /* enable hashing 2-tuple IPv6 SYNs */
166 unsigned int syn4tupenipv4:1; /* enable hashing 4-tuple IPv4 SYNs */
167 unsigned int syn2tupenipv4:1; /* enable hashing 2-tuple IPv4 SYNs */
168 unsigned int ofdmapen:1; /* Offload Map Enable */
169 unsigned int tnlmapen:1; /* Tunnel Map Enable */
170 unsigned int tnlalllookup:1; /* Tunnel All Lookup */
171 unsigned int hashtoeplitz:1; /* use Toeplitz hash */
172 } basicvirtual;
173 } u;
174 };
175
176 /*
177 * Virtual Interface RSS Configuration in host-native format.
178 */
179 union rss_vi_config {
180 struct {
181 u16 defaultq; /* Ingress Queue ID for !tnlalllookup */
182 unsigned int ip6fourtupen:1; /* hash 4-tuple IPv6 ingress packets */
183 unsigned int ip6twotupen:1; /* hash 2-tuple IPv6 ingress packets */
184 unsigned int ip4fourtupen:1; /* hash 4-tuple IPv4 ingress packets */
185 unsigned int ip4twotupen:1; /* hash 2-tuple IPv4 ingress packets */
186 int udpen; /* hash 4-tuple UDP ingress packets */
187 } basicvirtual;
188 };
189
190 /*
191 * Maximum resources provisioned for a PCI VF.
192 */
193 struct vf_resources {
194 unsigned int nvi; /* N virtual interfaces */
195 unsigned int neq; /* N egress Qs */
196 unsigned int nethctrl; /* N egress ETH or CTRL Qs */
197 unsigned int niqflint; /* N ingress Qs/w free list(s) & intr */
198 unsigned int niq; /* N ingress Qs */
199 unsigned int tc; /* PCI-E traffic class */
200 unsigned int pmask; /* port access rights mask */
201 unsigned int nexactf; /* N exact MPS filters */
202 unsigned int r_caps; /* read capabilities */
203 unsigned int wx_caps; /* write/execute capabilities */
204 };
205
206 /*
207 * Per-"adapter" (Virtual Function) parameters.
208 */
209 struct adapter_params {
210 struct dev_params dev; /* general device parameters */
211 struct sge_params sge; /* Scatter Gather Engine */
212 struct vpd_params vpd; /* Vital Product Data */
213 struct rss_params rss; /* Receive Side Scaling */
214 struct vf_resources vfres; /* Virtual Function Resource limits */
215 enum chip_type chip; /* chip code */
216 u8 nports; /* # of Ethernet "ports" */
217 };
218
219 #include "adapter.h"
220
221 #ifndef PCI_VENDOR_ID_CHELSIO
222 # define PCI_VENDOR_ID_CHELSIO 0x1425
223 #endif
224
225 #define for_each_port(adapter, iter) \
226 for (iter = 0; iter < (adapter)->params.nports; iter++)
227
is_10g_port(const struct link_config * lc)228 static inline bool is_10g_port(const struct link_config *lc)
229 {
230 return (lc->supported & SUPPORTED_10000baseT_Full) != 0;
231 }
232
is_x_10g_port(const struct link_config * lc)233 static inline bool is_x_10g_port(const struct link_config *lc)
234 {
235 return (lc->supported & FW_PORT_CAP_SPEED_10G) != 0 ||
236 (lc->supported & FW_PORT_CAP_SPEED_40G) != 0;
237 }
238
core_ticks_per_usec(const struct adapter * adapter)239 static inline unsigned int core_ticks_per_usec(const struct adapter *adapter)
240 {
241 return adapter->params.vpd.cclk / 1000;
242 }
243
us_to_core_ticks(const struct adapter * adapter,unsigned int us)244 static inline unsigned int us_to_core_ticks(const struct adapter *adapter,
245 unsigned int us)
246 {
247 return (us * adapter->params.vpd.cclk) / 1000;
248 }
249
core_ticks_to_us(const struct adapter * adapter,unsigned int ticks)250 static inline unsigned int core_ticks_to_us(const struct adapter *adapter,
251 unsigned int ticks)
252 {
253 return (ticks * 1000) / adapter->params.vpd.cclk;
254 }
255
256 int t4vf_wr_mbox_core(struct adapter *, const void *, int, void *, bool);
257
t4vf_wr_mbox(struct adapter * adapter,const void * cmd,int size,void * rpl)258 static inline int t4vf_wr_mbox(struct adapter *adapter, const void *cmd,
259 int size, void *rpl)
260 {
261 return t4vf_wr_mbox_core(adapter, cmd, size, rpl, true);
262 }
263
t4vf_wr_mbox_ns(struct adapter * adapter,const void * cmd,int size,void * rpl)264 static inline int t4vf_wr_mbox_ns(struct adapter *adapter, const void *cmd,
265 int size, void *rpl)
266 {
267 return t4vf_wr_mbox_core(adapter, cmd, size, rpl, false);
268 }
269
is_t4(enum chip_type chip)270 static inline int is_t4(enum chip_type chip)
271 {
272 return CHELSIO_CHIP_VERSION(chip) == CHELSIO_T4;
273 }
274
275 int t4vf_wait_dev_ready(struct adapter *);
276 int t4vf_port_init(struct adapter *, int);
277
278 int t4vf_fw_reset(struct adapter *);
279 int t4vf_set_params(struct adapter *, unsigned int, const u32 *, const u32 *);
280
281 int t4vf_get_sge_params(struct adapter *);
282 int t4vf_get_vpd_params(struct adapter *);
283 int t4vf_get_dev_params(struct adapter *);
284 int t4vf_get_rss_glb_config(struct adapter *);
285 int t4vf_get_vfres(struct adapter *);
286
287 int t4vf_read_rss_vi_config(struct adapter *, unsigned int,
288 union rss_vi_config *);
289 int t4vf_write_rss_vi_config(struct adapter *, unsigned int,
290 union rss_vi_config *);
291 int t4vf_config_rss_range(struct adapter *, unsigned int, int, int,
292 const u16 *, int);
293
294 int t4vf_alloc_vi(struct adapter *, int);
295 int t4vf_free_vi(struct adapter *, int);
296 int t4vf_enable_vi(struct adapter *, unsigned int, bool, bool);
297 int t4vf_identify_port(struct adapter *, unsigned int, unsigned int);
298
299 int t4vf_set_rxmode(struct adapter *, unsigned int, int, int, int, int, int,
300 bool);
301 int t4vf_alloc_mac_filt(struct adapter *, unsigned int, bool, unsigned int,
302 const u8 **, u16 *, u64 *, bool);
303 int t4vf_change_mac(struct adapter *, unsigned int, int, const u8 *, bool);
304 int t4vf_set_addr_hash(struct adapter *, unsigned int, bool, u64, bool);
305 int t4vf_get_port_stats(struct adapter *, int, struct t4vf_port_stats *);
306
307 int t4vf_iq_free(struct adapter *, unsigned int, unsigned int, unsigned int,
308 unsigned int);
309 int t4vf_eth_eq_free(struct adapter *, unsigned int);
310
311 int t4vf_handle_fw_rpl(struct adapter *, const __be64 *);
312
313 #endif /* __T4VF_COMMON_H__ */
314