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
58 #ifndef IFCAP_LINKSTATE
59 #define IFCAP_LINKSTATE 0
61 #ifndef IFCAP_VLAN_HWTSO
62 #define IFCAP_VLAN_HWTSO 0
65 #define IFM_10G_T IFM_UNKNOWN
68 #define IFM_10G_KX4 IFM_10G_CX4
70 #if (__FreeBSD_version >= 800501 && __FreeBSD_version < 900000) || \
71 __FreeBSD_version >= 900003
72 #define SFXGE_HAVE_DESCRIBE_INTR
74 #ifdef IFM_ETH_RXPAUSE
75 #define SFXGE_HAVE_PAUSE_MEDIAOPTS
78 #define CTLTYPE_U64 CTLTYPE_QUAD
84 #define ROUNDUP_POW_OF_TWO(_n) (1ULL << flsl((_n) - 1))
86 #define SFXGE_IP_ALIGN 2
88 #define SFXGE_ETHERTYPE_LOOPBACK 0x9000 /* Xerox loopback */
90 enum sfxge_evq_state {
91 SFXGE_EVQ_UNINITIALIZED = 0,
92 SFXGE_EVQ_INITIALIZED,
97 #define SFXGE_EV_BATCH 16384
100 /* Structure members below are sorted by usage order */
101 struct sfxge_softc *sc;
104 enum sfxge_evq_state init_state;
107 unsigned int read_ptr;
109 unsigned int rx_done;
110 unsigned int tx_done;
112 /* Linked list of TX queues with completions to process */
113 struct sfxge_txq *txq;
114 struct sfxge_txq **txqs;
116 /* Structure members not used on event processing path */
117 unsigned int buf_base_id;
118 unsigned int entries;
119 char lock_name[SFXGE_LOCK_NAME_MAX];
120 } __aligned(CACHE_LINE_SIZE);
122 #define SFXGE_NDESCS 1024
123 #define SFXGE_MODERATION 30
125 enum sfxge_intr_state {
126 SFXGE_INTR_UNINITIALIZED = 0,
127 SFXGE_INTR_INITIALIZED,
132 struct sfxge_intr_hdl {
135 struct resource *eih_res;
139 enum sfxge_intr_state state;
140 struct resource *msix_res;
141 struct sfxge_intr_hdl *table;
148 enum sfxge_mcdi_state {
149 SFXGE_MCDI_UNINITIALIZED = 0,
150 SFXGE_MCDI_INITIALIZED,
158 enum sfxge_mcdi_state state;
159 efx_mcdi_transport_t transport;
161 /* Only used in debugging output */
162 char lock_name[SFXGE_LOCK_NAME_MAX];
165 struct sfxge_hw_stats {
171 enum sfxge_port_state {
172 SFXGE_PORT_UNINITIALIZED = 0,
173 SFXGE_PORT_INITIALIZED,
178 struct sfxge_softc *sc;
180 enum sfxge_port_state init_state;
181 #ifndef SFXGE_HAVE_PAUSE_MEDIAOPTS
182 unsigned int wanted_fc;
184 struct sfxge_hw_stats phy_stats;
185 struct sfxge_hw_stats mac_stats;
186 efx_link_mode_t link_mode;
188 /* Only used in debugging output */
189 char lock_name[SFXGE_LOCK_NAME_MAX];
192 enum sfxge_softc_state {
193 SFXGE_UNINITIALIZED = 0,
201 struct sx softc_lock;
202 char softc_lock_name[SFXGE_LOCK_NAME_MAX];
203 enum sfxge_softc_state init_state;
205 unsigned int if_flags;
206 struct sysctl_oid *stats_node;
207 struct sysctl_oid *txqs_node;
209 struct task task_reset;
215 efsys_lock_t enp_lock;
217 unsigned int rxq_entries;
218 unsigned int txq_entries;
220 bus_dma_tag_t parent_dma_tag;
223 struct sfxge_intr intr;
224 struct sfxge_mcdi mcdi;
225 struct sfxge_port port;
226 uint32_t buffer_table_next;
228 struct sfxge_evq *evq[SFXGE_RX_SCALE_MAX];
229 unsigned int ev_moderation;
231 clock_t ev_stats_update_time;
232 uint64_t ev_stats[EV_NQSTATS];
235 unsigned int max_rss_channels;
236 uma_zone_t rxq_cache;
237 struct sfxge_rxq *rxq[SFXGE_RX_SCALE_MAX];
238 unsigned int rx_indir_table[SFXGE_RX_SCALE_MAX];
240 struct sfxge_txq *txq[SFXGE_TXQ_NTYPES + SFXGE_RX_SCALE_MAX];
242 struct ifmedia media;
244 size_t rx_prefix_size;
245 size_t rx_buffer_size;
246 uma_zone_t rx_buffer_zone;
248 unsigned int evq_count;
249 unsigned int rxq_count;
250 unsigned int txq_count;
253 #define SFXGE_LINK_UP(sc) ((sc)->port.link_mode != EFX_LINK_DOWN)
254 #define SFXGE_RUNNING(sc) ((sc)->ifnet->if_drv_flags & IFF_DRV_RUNNING)
256 #define SFXGE_PARAM(_name) "hw.sfxge." #_name
258 SYSCTL_DECL(_hw_sfxge);
263 extern void sfxge_schedule_reset(struct sfxge_softc *sc);
264 extern void sfxge_sram_buf_tbl_alloc(struct sfxge_softc *sc, size_t n,
270 extern int sfxge_dma_init(struct sfxge_softc *sc);
271 extern void sfxge_dma_fini(struct sfxge_softc *sc);
272 extern int sfxge_dma_alloc(struct sfxge_softc *sc, bus_size_t len,
274 extern void sfxge_dma_free(efsys_mem_t *esmp);
275 extern int sfxge_dma_map_sg_collapse(bus_dma_tag_t tag, bus_dmamap_t map,
276 struct mbuf **mp, bus_dma_segment_t *segs, int *nsegs, int maxsegs);
281 extern int sfxge_ev_init(struct sfxge_softc *sc);
282 extern void sfxge_ev_fini(struct sfxge_softc *sc);
283 extern int sfxge_ev_start(struct sfxge_softc *sc);
284 extern void sfxge_ev_stop(struct sfxge_softc *sc);
285 extern int sfxge_ev_qpoll(struct sfxge_evq *evq);
290 extern int sfxge_intr_init(struct sfxge_softc *sc);
291 extern void sfxge_intr_fini(struct sfxge_softc *sc);
292 extern int sfxge_intr_start(struct sfxge_softc *sc);
293 extern void sfxge_intr_stop(struct sfxge_softc *sc);
298 extern int sfxge_mcdi_init(struct sfxge_softc *sc);
299 extern void sfxge_mcdi_fini(struct sfxge_softc *sc);
304 extern int sfxge_port_init(struct sfxge_softc *sc);
305 extern void sfxge_port_fini(struct sfxge_softc *sc);
306 extern int sfxge_port_start(struct sfxge_softc *sc);
307 extern void sfxge_port_stop(struct sfxge_softc *sc);
308 extern void sfxge_mac_link_update(struct sfxge_softc *sc,
309 efx_link_mode_t mode);
310 extern int sfxge_mac_filter_set(struct sfxge_softc *sc);
311 extern int sfxge_port_ifmedia_init(struct sfxge_softc *sc);
312 extern uint64_t sfxge_get_counter(struct ifnet *ifp, ift_counter c);
314 #define SFXGE_MAX_MTU (9 * 1024)
316 #define SFXGE_ADAPTER_LOCK_INIT(_sc, _ifname) \
318 struct sfxge_softc *__sc = (_sc); \
320 snprintf((__sc)->softc_lock_name, \
321 sizeof((__sc)->softc_lock_name), \
322 "%s:softc", (_ifname)); \
323 sx_init(&(__sc)->softc_lock, (__sc)->softc_lock_name); \
325 #define SFXGE_ADAPTER_LOCK_DESTROY(_sc) \
326 sx_destroy(&(_sc)->softc_lock)
327 #define SFXGE_ADAPTER_LOCK(_sc) \
328 sx_xlock(&(_sc)->softc_lock)
329 #define SFXGE_ADAPTER_UNLOCK(_sc) \
330 sx_xunlock(&(_sc)->softc_lock)
331 #define SFXGE_ADAPTER_LOCK_ASSERT_OWNED(_sc) \
332 sx_assert(&(_sc)->softc_lock, LA_XLOCKED)
334 #define SFXGE_PORT_LOCK_INIT(_port, _ifname) \
336 struct sfxge_port *__port = (_port); \
338 snprintf((__port)->lock_name, \
339 sizeof((__port)->lock_name), \
340 "%s:port", (_ifname)); \
341 mtx_init(&(__port)->lock, (__port)->lock_name, \
344 #define SFXGE_PORT_LOCK_DESTROY(_port) \
345 mtx_destroy(&(_port)->lock)
346 #define SFXGE_PORT_LOCK(_port) \
347 mtx_lock(&(_port)->lock)
348 #define SFXGE_PORT_UNLOCK(_port) \
349 mtx_unlock(&(_port)->lock)
350 #define SFXGE_PORT_LOCK_ASSERT_OWNED(_port) \
351 mtx_assert(&(_port)->lock, MA_OWNED)
353 #define SFXGE_MCDI_LOCK_INIT(_mcdi, _ifname) \
355 struct sfxge_mcdi *__mcdi = (_mcdi); \
357 snprintf((__mcdi)->lock_name, \
358 sizeof((__mcdi)->lock_name), \
359 "%s:mcdi", (_ifname)); \
360 mtx_init(&(__mcdi)->lock, (__mcdi)->lock_name, \
363 #define SFXGE_MCDI_LOCK_DESTROY(_mcdi) \
364 mtx_destroy(&(_mcdi)->lock)
365 #define SFXGE_MCDI_LOCK(_mcdi) \
366 mtx_lock(&(_mcdi)->lock)
367 #define SFXGE_MCDI_UNLOCK(_mcdi) \
368 mtx_unlock(&(_mcdi)->lock)
369 #define SFXGE_MCDI_LOCK_ASSERT_OWNED(_mcdi) \
370 mtx_assert(&(_mcdi)->lock, MA_OWNED)
372 #define SFXGE_EVQ_LOCK_INIT(_evq, _ifname, _evq_index) \
374 struct sfxge_evq *__evq = (_evq); \
376 snprintf((__evq)->lock_name, \
377 sizeof((__evq)->lock_name), \
378 "%s:evq%u", (_ifname), (_evq_index)); \
379 mtx_init(&(__evq)->lock, (__evq)->lock_name, \
382 #define SFXGE_EVQ_LOCK_DESTROY(_evq) \
383 mtx_destroy(&(_evq)->lock)
384 #define SFXGE_EVQ_LOCK(_evq) \
385 mtx_lock(&(_evq)->lock)
386 #define SFXGE_EVQ_UNLOCK(_evq) \
387 mtx_unlock(&(_evq)->lock)
388 #define SFXGE_EVQ_LOCK_ASSERT_OWNED(_evq) \
389 mtx_assert(&(_evq)->lock, MA_OWNED)
391 #endif /* _SFXGE_H */