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_var.h>
46 #include <net/if_media.h>
47 #include <net/if_types.h>
50 * Backward-compatibility
52 #ifndef CACHE_LINE_SIZE
53 /* This should be right on most machines the driver will be used on, and
54 * we needn't care too much about wasting a few KB per interface.
56 #define CACHE_LINE_SIZE 128
59 #ifndef IFCAP_LINKSTATE
60 #define IFCAP_LINKSTATE 0
63 #ifndef IFCAP_VLAN_HWTSO
64 #define IFCAP_VLAN_HWTSO 0
68 #define IFM_10G_T IFM_UNKNOWN
72 #define IFM_10G_KX4 IFM_10G_CX4
75 #if (__FreeBSD_version >= 800501 && __FreeBSD_version < 900000) || \
76 __FreeBSD_version >= 900003
77 #define SFXGE_HAVE_DESCRIBE_INTR
80 #ifdef IFM_ETH_RXPAUSE
81 #define SFXGE_HAVE_PAUSE_MEDIAOPTS
85 #define CTLTYPE_U64 CTLTYPE_QUAD
91 #define ROUNDUP_POW_OF_TWO(_n) (1ULL << flsl((_n) - 1))
93 #define SFXGE_IP_ALIGN 2
95 #define SFXGE_ETHERTYPE_LOOPBACK 0x9000 /* Xerox loopback */
97 enum sfxge_evq_state {
98 SFXGE_EVQ_UNINITIALIZED = 0,
99 SFXGE_EVQ_INITIALIZED,
104 #define SFXGE_EV_BATCH 16384
107 /* Structure members below are sorted by usage order */
108 struct sfxge_softc *sc;
111 enum sfxge_evq_state init_state;
114 unsigned int read_ptr;
116 unsigned int rx_done;
117 unsigned int tx_done;
119 /* Linked list of TX queues with completions to process */
120 struct sfxge_txq *txq;
121 struct sfxge_txq **txqs;
123 /* Structure members not used on event processing path */
124 unsigned int buf_base_id;
125 unsigned int entries;
126 char lock_name[SFXGE_LOCK_NAME_MAX];
127 } __aligned(CACHE_LINE_SIZE);
129 #define SFXGE_NDESCS 1024
130 #define SFXGE_MODERATION 30
132 enum sfxge_intr_state {
133 SFXGE_INTR_UNINITIALIZED = 0,
134 SFXGE_INTR_INITIALIZED,
139 struct sfxge_intr_hdl {
142 struct resource *eih_res;
146 enum sfxge_intr_state state;
147 struct resource *msix_res;
148 struct sfxge_intr_hdl *table;
155 enum sfxge_mcdi_state {
156 SFXGE_MCDI_UNINITIALIZED = 0,
157 SFXGE_MCDI_INITIALIZED,
165 enum sfxge_mcdi_state state;
166 efx_mcdi_transport_t transport;
168 /* Only used in debugging output */
169 char lock_name[SFXGE_LOCK_NAME_MAX];
172 struct sfxge_hw_stats {
178 enum sfxge_port_state {
179 SFXGE_PORT_UNINITIALIZED = 0,
180 SFXGE_PORT_INITIALIZED,
185 struct sfxge_softc *sc;
187 enum sfxge_port_state init_state;
188 #ifndef SFXGE_HAVE_PAUSE_MEDIAOPTS
189 unsigned int wanted_fc;
191 struct sfxge_hw_stats phy_stats;
192 struct sfxge_hw_stats mac_stats;
193 efx_link_mode_t link_mode;
195 /* Only used in debugging output */
196 char lock_name[SFXGE_LOCK_NAME_MAX];
199 enum sfxge_softc_state {
200 SFXGE_UNINITIALIZED = 0,
208 struct sx softc_lock;
209 char softc_lock_name[SFXGE_LOCK_NAME_MAX];
210 enum sfxge_softc_state init_state;
212 unsigned int if_flags;
213 struct sysctl_oid *stats_node;
214 struct sysctl_oid *txqs_node;
216 struct task task_reset;
222 efsys_lock_t enp_lock;
224 unsigned int rxq_entries;
225 unsigned int txq_entries;
227 bus_dma_tag_t parent_dma_tag;
230 struct sfxge_intr intr;
231 struct sfxge_mcdi mcdi;
232 struct sfxge_port port;
233 uint32_t buffer_table_next;
235 struct sfxge_evq *evq[SFXGE_RX_SCALE_MAX];
236 unsigned int ev_moderation;
238 clock_t ev_stats_update_time;
239 uint64_t ev_stats[EV_NQSTATS];
242 unsigned int max_rss_channels;
243 uma_zone_t rxq_cache;
244 struct sfxge_rxq *rxq[SFXGE_RX_SCALE_MAX];
245 unsigned int rx_indir_table[SFXGE_RX_SCALE_MAX];
247 struct sfxge_txq *txq[SFXGE_TXQ_NTYPES + SFXGE_RX_SCALE_MAX];
249 struct ifmedia media;
251 size_t rx_prefix_size;
252 size_t rx_buffer_size;
253 uma_zone_t rx_buffer_zone;
255 unsigned int evq_count;
256 unsigned int rxq_count;
257 unsigned int txq_count;
260 #define SFXGE_LINK_UP(sc) ((sc)->port.link_mode != EFX_LINK_DOWN)
261 #define SFXGE_RUNNING(sc) ((sc)->ifnet->if_drv_flags & IFF_DRV_RUNNING)
263 #define SFXGE_PARAM(_name) "hw.sfxge." #_name
265 SYSCTL_DECL(_hw_sfxge);
270 extern void sfxge_schedule_reset(struct sfxge_softc *sc);
271 extern void sfxge_sram_buf_tbl_alloc(struct sfxge_softc *sc, size_t n,
277 extern int sfxge_dma_init(struct sfxge_softc *sc);
278 extern void sfxge_dma_fini(struct sfxge_softc *sc);
279 extern int sfxge_dma_alloc(struct sfxge_softc *sc, bus_size_t len,
281 extern void sfxge_dma_free(efsys_mem_t *esmp);
282 extern int sfxge_dma_map_sg_collapse(bus_dma_tag_t tag, bus_dmamap_t map,
283 struct mbuf **mp, bus_dma_segment_t *segs, int *nsegs, int maxsegs);
288 extern int sfxge_ev_init(struct sfxge_softc *sc);
289 extern void sfxge_ev_fini(struct sfxge_softc *sc);
290 extern int sfxge_ev_start(struct sfxge_softc *sc);
291 extern void sfxge_ev_stop(struct sfxge_softc *sc);
292 extern int sfxge_ev_qpoll(struct sfxge_evq *evq);
297 extern int sfxge_intr_init(struct sfxge_softc *sc);
298 extern void sfxge_intr_fini(struct sfxge_softc *sc);
299 extern int sfxge_intr_start(struct sfxge_softc *sc);
300 extern void sfxge_intr_stop(struct sfxge_softc *sc);
305 extern int sfxge_mcdi_init(struct sfxge_softc *sc);
306 extern void sfxge_mcdi_fini(struct sfxge_softc *sc);
311 extern int sfxge_port_init(struct sfxge_softc *sc);
312 extern void sfxge_port_fini(struct sfxge_softc *sc);
313 extern int sfxge_port_start(struct sfxge_softc *sc);
314 extern void sfxge_port_stop(struct sfxge_softc *sc);
315 extern void sfxge_mac_link_update(struct sfxge_softc *sc,
316 efx_link_mode_t mode);
317 extern int sfxge_mac_filter_set(struct sfxge_softc *sc);
318 extern int sfxge_port_ifmedia_init(struct sfxge_softc *sc);
319 extern uint64_t sfxge_get_counter(struct ifnet *ifp, ift_counter c);
321 #define SFXGE_MAX_MTU (9 * 1024)
323 #define SFXGE_ADAPTER_LOCK_INIT(_sc, _ifname) \
325 struct sfxge_softc *__sc = (_sc); \
327 snprintf((__sc)->softc_lock_name, \
328 sizeof((__sc)->softc_lock_name), \
329 "%s:softc", (_ifname)); \
330 sx_init(&(__sc)->softc_lock, (__sc)->softc_lock_name); \
332 #define SFXGE_ADAPTER_LOCK_DESTROY(_sc) \
333 sx_destroy(&(_sc)->softc_lock)
334 #define SFXGE_ADAPTER_LOCK(_sc) \
335 sx_xlock(&(_sc)->softc_lock)
336 #define SFXGE_ADAPTER_UNLOCK(_sc) \
337 sx_xunlock(&(_sc)->softc_lock)
338 #define SFXGE_ADAPTER_LOCK_ASSERT_OWNED(_sc) \
339 sx_assert(&(_sc)->softc_lock, LA_XLOCKED)
341 #define SFXGE_PORT_LOCK_INIT(_port, _ifname) \
343 struct sfxge_port *__port = (_port); \
345 snprintf((__port)->lock_name, \
346 sizeof((__port)->lock_name), \
347 "%s:port", (_ifname)); \
348 mtx_init(&(__port)->lock, (__port)->lock_name, \
351 #define SFXGE_PORT_LOCK_DESTROY(_port) \
352 mtx_destroy(&(_port)->lock)
353 #define SFXGE_PORT_LOCK(_port) \
354 mtx_lock(&(_port)->lock)
355 #define SFXGE_PORT_UNLOCK(_port) \
356 mtx_unlock(&(_port)->lock)
357 #define SFXGE_PORT_LOCK_ASSERT_OWNED(_port) \
358 mtx_assert(&(_port)->lock, MA_OWNED)
360 #define SFXGE_MCDI_LOCK_INIT(_mcdi, _ifname) \
362 struct sfxge_mcdi *__mcdi = (_mcdi); \
364 snprintf((__mcdi)->lock_name, \
365 sizeof((__mcdi)->lock_name), \
366 "%s:mcdi", (_ifname)); \
367 mtx_init(&(__mcdi)->lock, (__mcdi)->lock_name, \
370 #define SFXGE_MCDI_LOCK_DESTROY(_mcdi) \
371 mtx_destroy(&(_mcdi)->lock)
372 #define SFXGE_MCDI_LOCK(_mcdi) \
373 mtx_lock(&(_mcdi)->lock)
374 #define SFXGE_MCDI_UNLOCK(_mcdi) \
375 mtx_unlock(&(_mcdi)->lock)
376 #define SFXGE_MCDI_LOCK_ASSERT_OWNED(_mcdi) \
377 mtx_assert(&(_mcdi)->lock, MA_OWNED)
379 #define SFXGE_EVQ_LOCK_INIT(_evq, _ifname, _evq_index) \
381 struct sfxge_evq *__evq = (_evq); \
383 snprintf((__evq)->lock_name, \
384 sizeof((__evq)->lock_name), \
385 "%s:evq%u", (_ifname), (_evq_index)); \
386 mtx_init(&(__evq)->lock, (__evq)->lock_name, \
389 #define SFXGE_EVQ_LOCK_DESTROY(_evq) \
390 mtx_destroy(&(_evq)->lock)
391 #define SFXGE_EVQ_LOCK(_evq) \
392 mtx_lock(&(_evq)->lock)
393 #define SFXGE_EVQ_UNLOCK(_evq) \
394 mtx_unlock(&(_evq)->lock)
395 #define SFXGE_EVQ_LOCK_ASSERT_OWNED(_evq) \
396 mtx_assert(&(_evq)->lock, MA_OWNED)
398 #endif /* _SFXGE_H */