2 * This file is part of the Chelsio T4 PCI-E SR-IOV Virtual Function Ethernet
5 * Copyright (c) 2009-2010 Chelsio Communications, Inc. All rights reserved.
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:
13 * Redistribution and use in source and binary forms, with or
14 * without modification, are permitted provided that the following
17 * - Redistributions of source code must retain the above
18 * copyright notice, this list of conditions and the following
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.
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
36 #ifndef __T4VF_COMMON_H__
37 #define __T4VF_COMMON_H__
39 #include "../cxgb4/t4_hw.h"
40 #include "../cxgb4/t4fw_api.h"
42 #define CHELSIO_CHIP_CODE(version, revision) (((version) << 4) | (revision))
43 #define CHELSIO_CHIP_VERSION(code) (((code) >> 4) & 0xf)
44 #define CHELSIO_CHIP_RELEASE(code) ((code) & 0xf)
46 /* All T4 and later chips have their PCI-E Device IDs encoded as 0xVFPP where:
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
53 #define CHELSIO_T4 0x4
54 #define CHELSIO_T5 0x5
55 #define CHELSIO_T6 0x6
58 T4_A1 = CHELSIO_CHIP_CODE(CHELSIO_T4, 1),
59 T4_A2 = CHELSIO_CHIP_CODE(CHELSIO_T4, 2),
63 T5_A0 = CHELSIO_CHIP_CODE(CHELSIO_T5, 0),
64 T5_A1 = CHELSIO_CHIP_CODE(CHELSIO_T5, 1),
70 * The "len16" field of a Firmware Command Structure ...
72 #define FW_LEN16(fw_struct) FW_CMD_LEN16_V(sizeof(fw_struct) / 16)
77 struct t4vf_port_stats {
81 u64 tx_bcast_bytes; /* broadcast */
83 u64 tx_mcast_bytes; /* multicast */
85 u64 tx_ucast_bytes; /* unicast */
87 u64 tx_drop_frames; /* TX dropped frames */
88 u64 tx_offload_bytes; /* offload */
89 u64 tx_offload_frames;
94 u64 rx_bcast_bytes; /* broadcast */
96 u64 rx_mcast_bytes; /* multicast */
99 u64 rx_ucast_frames; /* unicast */
101 u64 rx_err_frames; /* RX error frames */
105 * Per-"port" (Virtual Interface) link configuration ...
108 unsigned int supported; /* link capabilities */
109 unsigned int advertising; /* advertised capabilities */
110 unsigned short lp_advertising; /* peer advertised capabilities */
111 unsigned int requested_speed; /* speed user has requested */
112 unsigned int 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? */
122 PAUSE_AUTONEG = 1 << 2
126 * General device parameters ...
129 u32 fwrev; /* firmware version */
130 u32 tprev; /* TP Microcode Version */
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 ...
139 u32 sge_control; /* padding, boundaries, lengths, etc. */
140 u32 sge_control2; /* T5: more of the same */
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 */
144 u32 sge_vf_hps; /* host page size for our vf */
145 u32 sge_vf_eq_qpp; /* egress queues/page for our VF */
146 u32 sge_vf_iq_qpp; /* ingress queues/page for our VF */
147 u32 sge_fl_buffer_size[16]; /* free list buffer sizes */
148 u32 sge_ingress_rx_threshold; /* RX counter interrupt threshold[4] */
149 u32 sge_congestion_control; /* congestion thresholds, etc. */
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;
156 * Vital Product Data parameters.
159 u32 cclk; /* Core Clock (KHz) */
162 /* Stores chip specific parameters */
163 struct arch_specific_params {
169 * Global Receive Side Scaling (RSS) parameters in host-native format.
172 unsigned int mode; /* RSS mode */
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 */
189 * Virtual Interface RSS Configuration in host-native format.
191 union rss_vi_config {
193 u16 defaultq; /* Ingress Queue ID for !tnlalllookup */
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 */
198 int udpen; /* hash 4-tuple UDP ingress packets */
203 * Maximum resources provisioned for a PCI VF.
205 struct 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 */
219 * Per-"adapter" (Virtual Function) parameters.
221 struct 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 */
227 struct arch_specific_params arch; /* chip specific params */
228 enum chip_type chip; /* chip code */
229 u8 nports; /* # of Ethernet "ports" */
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
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 */
244 struct 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 */
251 /* Given a pointer to a Firmware Mailbox Command Log and a log entry index,
252 * return a pointer to the specified entry.
254 static inline struct mbox_cmd *mbox_cmd_log_entry(struct mbox_cmd_log *log,
255 unsigned int entry_idx)
257 return &((struct mbox_cmd *)&(log)[1])[entry_idx];
262 #ifndef PCI_VENDOR_ID_CHELSIO
263 # define PCI_VENDOR_ID_CHELSIO 0x1425
266 #define for_each_port(adapter, iter) \
267 for (iter = 0; iter < (adapter)->params.nports; iter++)
269 static inline bool is_10g_port(const struct link_config *lc)
271 return (lc->supported & FW_PORT_CAP_SPEED_10G) != 0;
274 /* Return true if the Link Configuration supports "High Speeds" (those greater
277 static inline bool is_x_10g_port(const struct link_config *lc)
279 unsigned int speeds, high_speeds;
281 speeds = FW_PORT_CAP_SPEED_V(FW_PORT_CAP_SPEED_G(lc->supported));
282 high_speeds = speeds & ~(FW_PORT_CAP_SPEED_100M | FW_PORT_CAP_SPEED_1G);
284 return high_speeds != 0;
287 static inline unsigned int core_ticks_per_usec(const struct adapter *adapter)
289 return adapter->params.vpd.cclk / 1000;
292 static inline unsigned int us_to_core_ticks(const struct adapter *adapter,
295 return (us * adapter->params.vpd.cclk) / 1000;
298 static inline unsigned int core_ticks_to_us(const struct adapter *adapter,
301 return (ticks * 1000) / adapter->params.vpd.cclk;
304 int t4vf_wr_mbox_core(struct adapter *, const void *, int, void *, bool);
306 static inline int t4vf_wr_mbox(struct adapter *adapter, const void *cmd,
309 return t4vf_wr_mbox_core(adapter, cmd, size, rpl, true);
312 static inline int t4vf_wr_mbox_ns(struct adapter *adapter, const void *cmd,
315 return t4vf_wr_mbox_core(adapter, cmd, size, rpl, false);
318 #define CHELSIO_PCI_ID_VER(dev_id) ((dev_id) >> 12)
320 static inline int is_t4(enum chip_type chip)
322 return CHELSIO_CHIP_VERSION(chip) == CHELSIO_T4;
326 * hash_mac_addr - return the hash value of a MAC address
327 * @addr: the 48-bit Ethernet MAC address
329 * Hashes a MAC address according to the hash function used by hardware
330 * inexact (hash) address matching.
332 static inline int hash_mac_addr(const u8 *addr)
334 u32 a = ((u32)addr[0] << 16) | ((u32)addr[1] << 8) | addr[2];
335 u32 b = ((u32)addr[3] << 16) | ((u32)addr[4] << 8) | addr[5];
343 int t4vf_wait_dev_ready(struct adapter *);
344 int t4vf_port_init(struct adapter *, int);
346 int t4vf_fw_reset(struct adapter *);
347 int t4vf_set_params(struct adapter *, unsigned int, const u32 *, const u32 *);
349 int t4vf_fl_pkt_align(struct adapter *adapter);
350 enum t4_bar2_qtype { T4_BAR2_QTYPE_EGRESS, T4_BAR2_QTYPE_INGRESS };
351 int t4vf_bar2_sge_qregs(struct adapter *adapter,
353 enum t4_bar2_qtype qtype,
355 unsigned int *pbar2_qid);
357 int t4vf_get_sge_params(struct adapter *);
358 int t4vf_get_vpd_params(struct adapter *);
359 int t4vf_get_dev_params(struct adapter *);
360 int t4vf_get_rss_glb_config(struct adapter *);
361 int t4vf_get_vfres(struct adapter *);
363 int t4vf_read_rss_vi_config(struct adapter *, unsigned int,
364 union rss_vi_config *);
365 int t4vf_write_rss_vi_config(struct adapter *, unsigned int,
366 union rss_vi_config *);
367 int t4vf_config_rss_range(struct adapter *, unsigned int, int, int,
370 int t4vf_alloc_vi(struct adapter *, int);
371 int t4vf_free_vi(struct adapter *, int);
372 int t4vf_enable_vi(struct adapter *, unsigned int, bool, bool);
373 int t4vf_identify_port(struct adapter *, unsigned int, unsigned int);
375 int t4vf_set_rxmode(struct adapter *, unsigned int, int, int, int, int, int,
377 int t4vf_alloc_mac_filt(struct adapter *, unsigned int, bool, unsigned int,
378 const u8 **, u16 *, u64 *, bool);
379 int t4vf_free_mac_filt(struct adapter *, unsigned int, unsigned int naddr,
381 int t4vf_change_mac(struct adapter *, unsigned int, int, const u8 *, bool);
382 int t4vf_set_addr_hash(struct adapter *, unsigned int, bool, u64, bool);
383 int t4vf_get_port_stats(struct adapter *, int, struct t4vf_port_stats *);
385 int t4vf_iq_free(struct adapter *, unsigned int, unsigned int, unsigned int,
387 int t4vf_eth_eq_free(struct adapter *, unsigned int);
389 int t4vf_handle_fw_rpl(struct adapter *, const __be64 *);
390 int t4vf_prep_adapter(struct adapter *);
392 #endif /* __T4VF_COMMON_H__ */