2 * Copyright (c) 2010-2011 Solarflare Communications, Inc.
5 * This software was developed in part by Philip Paeps under contract for
6 * Solarflare Communications, Inc.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 #include <sys/param.h>
36 #include <sys/kernel.h>
37 #include <sys/condvar.h>
38 #include <sys/socket.h>
39 #include <sys/sysctl.h>
43 #include <net/ethernet.h>
45 #include <net/if_media.h>
46 #include <net/if_types.h>
49 * Backward-compatibility
51 #ifndef CACHE_LINE_SIZE
52 /* This should be right on most machines the driver will be used on, and
53 * we needn't care too much about wasting a few KB per interface.
55 #define CACHE_LINE_SIZE 128
57 #ifndef IFCAP_LINKSTATE
58 #define IFCAP_LINKSTATE 0
60 #ifndef IFCAP_VLAN_HWTSO
61 #define IFCAP_VLAN_HWTSO 0
64 #define IFM_10G_T IFM_UNKNOWN
67 #define IFM_10G_KX4 IFM_10G_CX4
69 #if __FreeBSD_version >= 800054
70 /* Networking core is multiqueue aware. We can manage our own TX
71 * queues and use m_pkthdr.flowid.
75 #if (__FreeBSD_version >= 800501 && __FreeBSD_version < 900000) || \
76 __FreeBSD_version >= 900003
77 #define SFXGE_HAVE_DESCRIBE_INTR
79 #ifdef IFM_ETH_RXPAUSE
80 #define SFXGE_HAVE_PAUSE_MEDIAOPTS
83 #define CTLTYPE_U64 CTLTYPE_QUAD
89 #define ROUNDUP_POW_OF_TWO(_n) (1ULL << flsl((_n) - 1))
91 #define SFXGE_IP_ALIGN 2
93 #define SFXGE_ETHERTYPE_LOOPBACK 0x9000 /* Xerox loopback */
95 enum sfxge_evq_state {
96 SFXGE_EVQ_UNINITIALIZED = 0,
97 SFXGE_EVQ_INITIALIZED,
102 #define SFXGE_EV_BATCH 16384
105 /* Structure members below are sorted by usage order */
106 struct sfxge_softc *sc;
109 enum sfxge_evq_state init_state;
112 unsigned int read_ptr;
114 unsigned int rx_done;
115 unsigned int tx_done;
117 /* Linked list of TX queues with completions to process */
118 struct sfxge_txq *txq;
119 struct sfxge_txq **txqs;
121 /* Structure members not used on event processing path */
122 unsigned int buf_base_id;
123 unsigned int entries;
124 } __aligned(CACHE_LINE_SIZE);
126 #define SFXGE_NDESCS 1024
127 #define SFXGE_MODERATION 30
129 enum sfxge_intr_state {
130 SFXGE_INTR_UNINITIALIZED = 0,
131 SFXGE_INTR_INITIALIZED,
136 struct sfxge_intr_hdl {
139 struct resource *eih_res;
143 enum sfxge_intr_state state;
144 struct resource *msix_res;
145 struct sfxge_intr_hdl *table;
152 enum sfxge_mcdi_state {
153 SFXGE_MCDI_UNINITIALIZED = 0,
154 SFXGE_MCDI_INITIALIZED,
162 enum sfxge_mcdi_state state;
163 efx_mcdi_transport_t transport;
166 struct sfxge_hw_stats {
172 enum sfxge_port_state {
173 SFXGE_PORT_UNINITIALIZED = 0,
174 SFXGE_PORT_INITIALIZED,
179 struct sfxge_softc *sc;
181 enum sfxge_port_state init_state;
182 #ifndef SFXGE_HAVE_PAUSE_MEDIAOPTS
183 unsigned int wanted_fc;
185 struct sfxge_hw_stats phy_stats;
186 struct sfxge_hw_stats mac_stats;
187 efx_link_mode_t link_mode;
190 enum sfxge_softc_state {
191 SFXGE_UNINITIALIZED = 0,
199 struct sx softc_lock;
200 enum sfxge_softc_state init_state;
202 unsigned int if_flags;
203 struct sysctl_oid *stats_node;
204 struct sysctl_oid *txqs_node;
206 struct task task_reset;
214 unsigned int rxq_entries;
215 unsigned int txq_entries;
217 bus_dma_tag_t parent_dma_tag;
220 struct sfxge_intr intr;
221 struct sfxge_mcdi mcdi;
222 struct sfxge_port port;
223 uint32_t buffer_table_next;
225 struct sfxge_evq *evq[SFXGE_RX_SCALE_MAX];
226 unsigned int ev_moderation;
228 clock_t ev_stats_update_time;
229 uint64_t ev_stats[EV_NQSTATS];
232 unsigned int max_rss_channels;
233 uma_zone_t rxq_cache;
234 struct sfxge_rxq *rxq[SFXGE_RX_SCALE_MAX];
235 unsigned int rx_indir_table[SFXGE_RX_SCALE_MAX];
238 struct sfxge_txq *txq[SFXGE_TXQ_NTYPES + SFXGE_RX_SCALE_MAX];
240 struct sfxge_txq *txq[SFXGE_TXQ_NTYPES];
243 struct ifmedia media;
245 size_t rx_prefix_size;
246 size_t rx_buffer_size;
247 uma_zone_t rx_buffer_zone;
249 #ifndef SFXGE_HAVE_MQ
250 struct mtx tx_lock __aligned(CACHE_LINE_SIZE);
254 #define SFXGE_LINK_UP(sc) ((sc)->port.link_mode != EFX_LINK_DOWN)
255 #define SFXGE_RUNNING(sc) ((sc)->ifnet->if_drv_flags & IFF_DRV_RUNNING)
257 #define SFXGE_PARAM(_name) "hw.sfxge." #_name
259 SYSCTL_DECL(_hw_sfxge);
264 extern void sfxge_schedule_reset(struct sfxge_softc *sc);
265 extern void sfxge_sram_buf_tbl_alloc(struct sfxge_softc *sc, size_t n,
271 extern int sfxge_dma_init(struct sfxge_softc *sc);
272 extern void sfxge_dma_fini(struct sfxge_softc *sc);
273 extern int sfxge_dma_alloc(struct sfxge_softc *sc, bus_size_t len,
275 extern void sfxge_dma_free(efsys_mem_t *esmp);
276 extern int sfxge_dma_map_sg_collapse(bus_dma_tag_t tag, bus_dmamap_t map,
277 struct mbuf **mp, bus_dma_segment_t *segs, int *nsegs, int maxsegs);
282 extern int sfxge_ev_init(struct sfxge_softc *sc);
283 extern void sfxge_ev_fini(struct sfxge_softc *sc);
284 extern int sfxge_ev_start(struct sfxge_softc *sc);
285 extern void sfxge_ev_stop(struct sfxge_softc *sc);
286 extern int sfxge_ev_qpoll(struct sfxge_evq *evq);
291 extern int sfxge_intr_init(struct sfxge_softc *sc);
292 extern void sfxge_intr_fini(struct sfxge_softc *sc);
293 extern int sfxge_intr_start(struct sfxge_softc *sc);
294 extern void sfxge_intr_stop(struct sfxge_softc *sc);
299 extern int sfxge_mcdi_init(struct sfxge_softc *sc);
300 extern void sfxge_mcdi_fini(struct sfxge_softc *sc);
305 extern int sfxge_port_init(struct sfxge_softc *sc);
306 extern void sfxge_port_fini(struct sfxge_softc *sc);
307 extern int sfxge_port_start(struct sfxge_softc *sc);
308 extern void sfxge_port_stop(struct sfxge_softc *sc);
309 extern void sfxge_mac_link_update(struct sfxge_softc *sc,
310 efx_link_mode_t mode);
311 extern int sfxge_mac_filter_set(struct sfxge_softc *sc);
312 extern int sfxge_port_ifmedia_init(struct sfxge_softc *sc);
314 #define SFXGE_MAX_MTU (9 * 1024)
316 #endif /* _SFXGE_H */