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 struct sfxge_softc *sc __aligned(CACHE_LINE_SIZE);
106 struct mtx lock __aligned(CACHE_LINE_SIZE);
108 enum sfxge_evq_state init_state;
110 unsigned int entries;
112 unsigned int buf_base_id;
117 unsigned int read_ptr;
118 unsigned int rx_done;
119 unsigned int tx_done;
121 /* Linked list of TX queues with completions to process */
122 struct sfxge_txq *txq;
123 struct sfxge_txq **txqs;
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;
227 clock_t ev_stats_update_time;
228 uint64_t ev_stats[EV_NQSTATS];
230 uma_zone_t rxq_cache;
231 struct sfxge_rxq *rxq[SFXGE_RX_SCALE_MAX];
232 unsigned int rx_indir_table[SFXGE_RX_SCALE_MAX];
235 struct sfxge_txq *txq[SFXGE_TXQ_NTYPES + SFXGE_RX_SCALE_MAX];
237 struct sfxge_txq *txq[SFXGE_TXQ_NTYPES];
240 struct ifmedia media;
242 size_t rx_prefix_size;
243 size_t rx_buffer_size;
244 uma_zone_t rx_buffer_zone;
246 #ifndef SFXGE_HAVE_MQ
247 struct mtx tx_lock __aligned(CACHE_LINE_SIZE);
251 #define SFXGE_LINK_UP(sc) ((sc)->port.link_mode != EFX_LINK_DOWN)
252 #define SFXGE_RUNNING(sc) ((sc)->ifnet->if_drv_flags & IFF_DRV_RUNNING)
254 #define SFXGE_PARAM(_name) "hw.sfxge." #_name
256 SYSCTL_DECL(_hw_sfxge);
261 extern void sfxge_schedule_reset(struct sfxge_softc *sc);
262 extern void sfxge_sram_buf_tbl_alloc(struct sfxge_softc *sc, size_t n,
268 extern int sfxge_dma_init(struct sfxge_softc *sc);
269 extern void sfxge_dma_fini(struct sfxge_softc *sc);
270 extern int sfxge_dma_alloc(struct sfxge_softc *sc, bus_size_t len,
272 extern void sfxge_dma_free(efsys_mem_t *esmp);
273 extern int sfxge_dma_map_sg_collapse(bus_dma_tag_t tag, bus_dmamap_t map,
274 struct mbuf **mp, bus_dma_segment_t *segs, int *nsegs, int maxsegs);
279 extern int sfxge_ev_init(struct sfxge_softc *sc);
280 extern void sfxge_ev_fini(struct sfxge_softc *sc);
281 extern int sfxge_ev_start(struct sfxge_softc *sc);
282 extern void sfxge_ev_stop(struct sfxge_softc *sc);
283 extern int sfxge_ev_qpoll(struct sfxge_evq *evq);
288 extern int sfxge_intr_init(struct sfxge_softc *sc);
289 extern void sfxge_intr_fini(struct sfxge_softc *sc);
290 extern int sfxge_intr_start(struct sfxge_softc *sc);
291 extern void sfxge_intr_stop(struct sfxge_softc *sc);
296 extern int sfxge_mcdi_init(struct sfxge_softc *sc);
297 extern void sfxge_mcdi_fini(struct sfxge_softc *sc);
302 extern int sfxge_port_init(struct sfxge_softc *sc);
303 extern void sfxge_port_fini(struct sfxge_softc *sc);
304 extern int sfxge_port_start(struct sfxge_softc *sc);
305 extern void sfxge_port_stop(struct sfxge_softc *sc);
306 extern void sfxge_mac_link_update(struct sfxge_softc *sc,
307 efx_link_mode_t mode);
308 extern int sfxge_mac_filter_set(struct sfxge_softc *sc);
309 extern int sfxge_port_ifmedia_init(struct sfxge_softc *sc);
311 #define SFXGE_MAX_MTU (9 * 1024)
313 #endif /* _SFXGE_H */