/drivers/net/cxgb4vf/t4vf_common.h

  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/*
 42 * The "len16" field of a Firmware Command Structure ...
 43 */
 44#define FW_LEN16(fw_struct) FW_CMD_LEN16(sizeof(fw_struct) / 16)
 45
 46/*
 47 * Per-VF statistics.
 48 */
 49struct t4vf_port_stats {
 50	/*
 51	 * TX statistics.
 52	 */
 53	u64 tx_bcast_bytes;		/* broadcast */
 54	u64 tx_bcast_frames;
 55	u64 tx_mcast_bytes;		/* multicast */
 56	u64 tx_mcast_frames;
 57	u64 tx_ucast_bytes;		/* unicast */
 58	u64 tx_ucast_frames;
 59	u64 tx_drop_frames;		/* TX dropped frames */
 60	u64 tx_offload_bytes;		/* offload */
 61	u64 tx_offload_frames;
 62
 63	/*
 64	 * RX statistics.
 65	 */
 66	u64 rx_bcast_bytes;		/* broadcast */
 67	u64 rx_bcast_frames;
 68	u64 rx_mcast_bytes;		/* multicast */
 69	u64 rx_mcast_frames;
 70	u64 rx_ucast_bytes;
 71	u64 rx_ucast_frames;		/* unicast */
 72
 73	u64 rx_err_frames;		/* RX error frames */
 74};
 75
 76/*
 77 * Per-"port" (Virtual Interface) link configuration ...
 78 */
 79struct link_config {
 80	unsigned int   supported;        /* link capabilities */
 81	unsigned int   advertising;      /* advertised capabilities */
 82	unsigned short requested_speed;  /* speed user has requested */
 83	unsigned short speed;            /* actual link speed */
 84	unsigned char  requested_fc;     /* flow control user has requested */
 85	unsigned char  fc;               /* actual link flow control */
 86	unsigned char  autoneg;          /* autonegotiating? */
 87	unsigned char  link_ok;          /* link up? */
 88};
 89
 90enum {
 91	PAUSE_RX      = 1 << 0,
 92	PAUSE_TX      = 1 << 1,
 93	PAUSE_AUTONEG = 1 << 2
 94};
 95
 96/*
 97 * General device parameters ...
 98 */
 99struct dev_params {
100	u32 fwrev;			/* firmware version */
101	u32 tprev;			/* TP Microcode Version */
102};
103
104/*
105 * Scatter Gather Engine parameters.  These are almost all determined by the
106 * Physical Function Driver.  We just need to grab them to see within which
107 * environment we're playing ...
108 */
109struct sge_params {
110	u32 sge_control;		/* padding, boundaries, lengths, etc. */
111	u32 sge_host_page_size;		/* RDMA page sizes */
112	u32 sge_queues_per_page;	/* RDMA queues/page */
113	u32 sge_user_mode_limits;	/* limits for BAR2 user mode accesses */
114	u32 sge_fl_buffer_size[16];	/* free list buffer sizes */
115	u32 sge_ingress_rx_threshold;	/* RX counter interrupt threshold[4] */
116	u32 sge_timer_value_0_and_1;	/* interrupt coalescing timer values */
117	u32 sge_timer_value_2_and_3;
118	u32 sge_timer_value_4_and_5;
119};
120
121/*
122 * Vital Product Data parameters.
123 */
124struct vpd_params {
125	u32 cclk;			/* Core Clock (KHz) */
126};
127
128/*
129 * Global Receive Side Scaling (RSS) parameters in host-native format.
130 */
131struct rss_params {
132	unsigned int mode;		/* RSS mode */
133	union {
134	    struct {
135		unsigned int synmapen:1;	/* SYN Map Enable */
136		unsigned int syn4tupenipv6:1;	/* enable hashing 4-tuple IPv6 SYNs */
137		unsigned int syn2tupenipv6:1;	/* enable hashing 2-tuple IPv6 SYNs */
138		unsigned int syn4tupenipv4:1;	/* enable hashing 4-tuple IPv4 SYNs */
139		unsigned int syn2tupenipv4:1;	/* enable hashing 2-tuple IPv4 SYNs */
140		unsigned int ofdmapen:1;	/* Offload Map Enable */
141		unsigned int tnlmapen:1;	/* Tunnel Map Enable */
142		unsigned int tnlalllookup:1;	/* Tunnel All Lookup */
143		unsigned int hashtoeplitz:1;	/* use Toeplitz hash */
144	    } basicvirtual;
145	} u;
146};
147
148/*
149 * Virtual Interface RSS Configuration in host-native format.
150 */
151union rss_vi_config {
152    struct {
153	u16 defaultq;			/* Ingress Queue ID for !tnlalllookup */
154	unsigned int ip6fourtupen:1;	/* hash 4-tuple IPv6 ingress packets */
155	unsigned int ip6twotupen:1;	/* hash 2-tuple IPv6 ingress packets */
156	unsigned int ip4fourtupen:1;	/* hash 4-tuple IPv4 ingress packets */
157	unsigned int ip4twotupen:1;	/* hash 2-tuple IPv4 ingress packets */
158	int udpen;			/* hash 4-tuple UDP ingress packets */
159    } basicvirtual;
160};
161
162/*
163 * Maximum resources provisioned for a PCI VF.
164 */
165struct vf_resources {
166	unsigned int nvi;		/* N virtual interfaces */
167	unsigned int neq;		/* N egress Qs */
168	unsigned int nethctrl;		/* N egress ETH or CTRL Qs */
169	unsigned int niqflint;		/* N ingress Qs/w free list(s) & intr */
170	unsigned int niq;		/* N ingress Qs */
171	unsigned int tc;		/* PCI-E traffic class */
172	unsigned int pmask;		/* port access rights mask */
173	unsigned int nexactf;		/* N exact MPS filters */
174	unsigned int r_caps;		/* read capabilities */
175	unsigned int wx_caps;		/* write/execute capabilities */
176};
177
178/*
179 * Per-"adapter" (Virtual Function) parameters.
180 */
181struct adapter_params {
182	struct dev_params dev;		/* general device parameters */
183	struct sge_params sge;		/* Scatter Gather Engine */
184	struct vpd_params vpd;		/* Vital Product Data */
185	struct rss_params rss;		/* Receive Side Scaling */
186	struct vf_resources vfres;	/* Virtual Function Resource limits */
187	u8 nports;			/* # of Ethernet "ports" */
188};
189
190#include "adapter.h"
191
192#ifndef PCI_VENDOR_ID_CHELSIO
193# define PCI_VENDOR_ID_CHELSIO 0x1425
194#endif
195
196#define for_each_port(adapter, iter) \
197	for (iter = 0; iter < (adapter)->params.nports; iter++)
198
199static inline bool is_10g_port(const struct link_config *lc)
200{
201	return (lc->supported & SUPPORTED_10000baseT_Full) != 0;
202}
203
204static inline unsigned int core_ticks_per_usec(const struct adapter *adapter)
205{
206	return adapter->params.vpd.cclk / 1000;
207}
208
209static inline unsigned int us_to_core_ticks(const struct adapter *adapter,
210					    unsigned int us)
211{
212	return (us * adapter->params.vpd.cclk) / 1000;
213}
214
215static inline unsigned int core_ticks_to_us(const struct adapter *adapter,
216					    unsigned int ticks)
217{
218	return (ticks * 1000) / adapter->params.vpd.cclk;
219}
220
221int t4vf_wr_mbox_core(struct adapter *, const void *, int, void *, bool);
222
223static inline int t4vf_wr_mbox(struct adapter *adapter, const void *cmd,
224			       int size, void *rpl)
225{
226	return t4vf_wr_mbox_core(adapter, cmd, size, rpl, true);
227}
228
229static inline int t4vf_wr_mbox_ns(struct adapter *adapter, const void *cmd,
230				  int size, void *rpl)
231{
232	return t4vf_wr_mbox_core(adapter, cmd, size, rpl, false);
233}
234
235int __devinit t4vf_wait_dev_ready(struct adapter *);
236int __devinit t4vf_port_init(struct adapter *, int);
237
238int t4vf_fw_reset(struct adapter *);
239int t4vf_query_params(struct adapter *, unsigned int, const u32 *, u32 *);
240int t4vf_set_params(struct adapter *, unsigned int, const u32 *, const u32 *);
241
242int t4vf_get_sge_params(struct adapter *);
243int t4vf_get_vpd_params(struct adapter *);
244int t4vf_get_dev_params(struct adapter *);
245int t4vf_get_rss_glb_config(struct adapter *);
246int t4vf_get_vfres(struct adapter *);
247
248int t4vf_read_rss_vi_config(struct adapter *, unsigned int,
249			    union rss_vi_config *);
250int t4vf_write_rss_vi_config(struct adapter *, unsigned int,
251			     union rss_vi_config *);
252int t4vf_config_rss_range(struct adapter *, unsigned int, int, int,
253			  const u16 *, int);
254
255int t4vf_alloc_vi(struct adapter *, int);
256int t4vf_free_vi(struct adapter *, int);
257int t4vf_enable_vi(struct adapter *, unsigned int, bool, bool);
258int t4vf_identify_port(struct adapter *, unsigned int, unsigned int);
259
260int t4vf_set_rxmode(struct adapter *, unsigned int, int, int, int, int, int,
261		    bool);
262int t4vf_alloc_mac_filt(struct adapter *, unsigned int, bool, unsigned int,
263			const u8 **, u16 *, u64 *, bool);
264int t4vf_change_mac(struct adapter *, unsigned int, int, const u8 *, bool);
265int t4vf_set_addr_hash(struct adapter *, unsigned int, bool, u64, bool);
266int t4vf_get_port_stats(struct adapter *, int, struct t4vf_port_stats *);
267
268int t4vf_iq_free(struct adapter *, unsigned int, unsigned int, unsigned int,
269		 unsigned int);
270int t4vf_eth_eq_free(struct adapter *, unsigned int);
271
272int t4vf_handle_fw_rpl(struct adapter *, const __be64 *);
273
274#endif /* __T4VF_COMMON_H__ */