2 * Copyright (c) 2010-2015 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 are met:
11 * 1. Redistributions of source code must retain the above copyright notice,
12 * this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright notice,
14 * this list of conditions and the following disclaimer in the documentation
15 * and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
19 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
21 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
22 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
23 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
24 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
26 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
27 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 * The views and conclusions contained in the software and documentation are
30 * those of the authors and should not be interpreted as representing official
31 * policies, either expressed or implied, of the FreeBSD Project.
39 #include <sys/param.h>
40 #include <sys/kernel.h>
41 #include <sys/socket.h>
42 #include <sys/sysctl.h>
46 #include <net/ethernet.h>
48 #include <net/if_media.h>
49 #include <net/if_types.h>
51 #include "sfxge_ioc.h"
57 #define DBGPRINT(dev, fmt, args...) \
58 device_printf(dev, "%s: " fmt "\n", __func__, ## args)
60 #define DBGPRINT(dev, fmt, args...)
64 * Backward-compatibility
66 #ifndef CACHE_LINE_SIZE
67 /* This should be right on most machines the driver will be used on, and
68 * we needn't care too much about wasting a few KB per interface.
70 #define CACHE_LINE_SIZE 128
73 #ifndef IFCAP_LINKSTATE
74 #define IFCAP_LINKSTATE 0
77 #ifndef IFCAP_VLAN_HWTSO
78 #define IFCAP_VLAN_HWTSO 0
82 #define IFM_10G_T IFM_UNKNOWN
86 #define IFM_10G_KX4 IFM_10G_CX4
90 #define IFM_40G_CR4 IFM_UNKNOWN
93 #if (__FreeBSD_version >= 800501 && __FreeBSD_version < 900000) || \
94 __FreeBSD_version >= 900003
95 #define SFXGE_HAVE_DESCRIBE_INTR
98 #ifdef IFM_ETH_RXPAUSE
99 #define SFXGE_HAVE_PAUSE_MEDIAOPTS
103 #define CTLTYPE_U64 CTLTYPE_QUAD
106 #include "sfxge_rx.h"
107 #include "sfxge_tx.h"
109 #define ROUNDUP_POW_OF_TWO(_n) (1ULL << flsl((_n) - 1))
111 #define SFXGE_IP_ALIGN 2
113 #define SFXGE_ETHERTYPE_LOOPBACK 0x9000 /* Xerox loopback */
115 enum sfxge_evq_state {
116 SFXGE_EVQ_UNINITIALIZED = 0,
117 SFXGE_EVQ_INITIALIZED,
122 #define SFXGE_EV_BATCH 16384
124 #define SFXGE_CALLOUT_TICKS 100
127 /* Structure members below are sorted by usage order */
128 struct sfxge_softc *sc;
131 enum sfxge_evq_state init_state;
134 unsigned int read_ptr;
136 unsigned int rx_done;
137 unsigned int tx_done;
139 /* Linked list of TX queues with completions to process */
140 struct sfxge_txq *txq;
141 struct sfxge_txq **txqs;
143 /* Structure members not used on event processing path */
144 unsigned int buf_base_id;
145 unsigned int entries;
146 char lock_name[SFXGE_LOCK_NAME_MAX];
147 } __aligned(CACHE_LINE_SIZE);
149 #define SFXGE_NDESCS 1024
150 #define SFXGE_MODERATION 30
152 enum sfxge_intr_state {
153 SFXGE_INTR_UNINITIALIZED = 0,
154 SFXGE_INTR_INITIALIZED,
159 struct sfxge_intr_hdl {
162 struct resource *eih_res;
166 enum sfxge_intr_state state;
167 struct resource *msix_res;
168 struct sfxge_intr_hdl *table;
175 enum sfxge_mcdi_state {
176 SFXGE_MCDI_UNINITIALIZED = 0,
177 SFXGE_MCDI_INITIALIZED,
185 enum sfxge_mcdi_state state;
186 efx_mcdi_transport_t transport;
188 /* Only used in debugging output */
189 char lock_name[SFXGE_LOCK_NAME_MAX];
192 struct sfxge_hw_stats {
198 enum sfxge_port_state {
199 SFXGE_PORT_UNINITIALIZED = 0,
200 SFXGE_PORT_INITIALIZED,
205 struct sfxge_softc *sc;
207 enum sfxge_port_state init_state;
208 #ifndef SFXGE_HAVE_PAUSE_MEDIAOPTS
209 unsigned int wanted_fc;
211 struct sfxge_hw_stats phy_stats;
212 struct sfxge_hw_stats mac_stats;
213 efx_link_mode_t link_mode;
214 uint8_t mcast_addrs[EFX_MAC_MULTICAST_LIST_MAX *
216 unsigned int mcast_count;
218 /* Only used in debugging output */
219 char lock_name[SFXGE_LOCK_NAME_MAX];
222 enum sfxge_softc_state {
223 SFXGE_UNINITIALIZED = 0,
231 struct sx softc_lock;
232 char softc_lock_name[SFXGE_LOCK_NAME_MAX];
233 enum sfxge_softc_state init_state;
235 unsigned int if_flags;
236 struct sysctl_oid *stats_node;
237 struct sysctl_oid *txqs_node;
239 struct task task_reset;
245 efsys_lock_t enp_lock;
247 unsigned int rxq_entries;
248 unsigned int txq_entries;
250 bus_dma_tag_t parent_dma_tag;
253 struct sfxge_intr intr;
254 struct sfxge_mcdi mcdi;
255 struct sfxge_port port;
256 uint32_t buffer_table_next;
258 struct sfxge_evq *evq[SFXGE_RX_SCALE_MAX];
259 unsigned int ev_moderation;
261 clock_t ev_stats_update_time;
262 uint64_t ev_stats[EV_NQSTATS];
265 unsigned int max_rss_channels;
266 uma_zone_t rxq_cache;
267 struct sfxge_rxq *rxq[SFXGE_RX_SCALE_MAX];
268 unsigned int rx_indir_table[SFXGE_RX_SCALE_MAX];
270 struct sfxge_txq *txq[SFXGE_TXQ_NTYPES + SFXGE_RX_SCALE_MAX];
272 struct ifmedia media;
274 size_t rx_prefix_size;
275 size_t rx_buffer_size;
276 size_t rx_buffer_align;
277 uma_zone_t rx_buffer_zone;
279 struct callout tick_callout;
281 unsigned int evq_max;
282 unsigned int evq_count;
283 unsigned int rxq_count;
284 unsigned int txq_count;
289 #define SFXGE_LINK_UP(sc) ((sc)->port.link_mode != EFX_LINK_DOWN)
290 #define SFXGE_RUNNING(sc) ((sc)->ifnet->if_drv_flags & IFF_DRV_RUNNING)
292 #define SFXGE_PARAM(_name) "hw.sfxge." #_name
294 SYSCTL_DECL(_hw_sfxge);
299 extern void sfxge_schedule_reset(struct sfxge_softc *sc);
300 extern void sfxge_sram_buf_tbl_alloc(struct sfxge_softc *sc, size_t n,
306 extern int sfxge_dma_init(struct sfxge_softc *sc);
307 extern void sfxge_dma_fini(struct sfxge_softc *sc);
308 extern int sfxge_dma_alloc(struct sfxge_softc *sc, bus_size_t len,
310 extern void sfxge_dma_free(efsys_mem_t *esmp);
311 extern int sfxge_dma_map_sg_collapse(bus_dma_tag_t tag, bus_dmamap_t map,
313 bus_dma_segment_t *segs,
314 int *nsegs, int maxsegs);
319 extern int sfxge_ev_init(struct sfxge_softc *sc);
320 extern void sfxge_ev_fini(struct sfxge_softc *sc);
321 extern int sfxge_ev_start(struct sfxge_softc *sc);
322 extern void sfxge_ev_stop(struct sfxge_softc *sc);
323 extern int sfxge_ev_qpoll(struct sfxge_evq *evq);
328 extern int sfxge_intr_init(struct sfxge_softc *sc);
329 extern void sfxge_intr_fini(struct sfxge_softc *sc);
330 extern int sfxge_intr_start(struct sfxge_softc *sc);
331 extern void sfxge_intr_stop(struct sfxge_softc *sc);
336 extern int sfxge_mcdi_init(struct sfxge_softc *sc);
337 extern void sfxge_mcdi_fini(struct sfxge_softc *sc);
338 extern int sfxge_mcdi_ioctl(struct sfxge_softc *sc, sfxge_ioc_t *ip);
341 * From sfxge_nvram.c.
343 extern int sfxge_nvram_ioctl(struct sfxge_softc *sc, sfxge_ioc_t *ip);
348 extern int sfxge_port_init(struct sfxge_softc *sc);
349 extern void sfxge_port_fini(struct sfxge_softc *sc);
350 extern int sfxge_port_start(struct sfxge_softc *sc);
351 extern void sfxge_port_stop(struct sfxge_softc *sc);
352 extern void sfxge_mac_link_update(struct sfxge_softc *sc,
353 efx_link_mode_t mode);
354 extern int sfxge_mac_filter_set(struct sfxge_softc *sc);
355 extern int sfxge_port_ifmedia_init(struct sfxge_softc *sc);
356 extern void sfxge_port_update_stats(struct sfxge_softc *sc);
358 #define SFXGE_MAX_MTU (9 * 1024)
360 #define SFXGE_ADAPTER_LOCK_INIT(_sc, _ifname) \
362 struct sfxge_softc *__sc = (_sc); \
364 snprintf((__sc)->softc_lock_name, \
365 sizeof((__sc)->softc_lock_name), \
366 "%s:softc", (_ifname)); \
367 sx_init(&(__sc)->softc_lock, (__sc)->softc_lock_name); \
369 #define SFXGE_ADAPTER_LOCK_DESTROY(_sc) \
370 sx_destroy(&(_sc)->softc_lock)
371 #define SFXGE_ADAPTER_LOCK(_sc) \
372 sx_xlock(&(_sc)->softc_lock)
373 #define SFXGE_ADAPTER_UNLOCK(_sc) \
374 sx_xunlock(&(_sc)->softc_lock)
375 #define SFXGE_ADAPTER_LOCK_ASSERT_OWNED(_sc) \
376 sx_assert(&(_sc)->softc_lock, LA_XLOCKED)
378 #define SFXGE_PORT_LOCK_INIT(_port, _ifname) \
380 struct sfxge_port *__port = (_port); \
382 snprintf((__port)->lock_name, \
383 sizeof((__port)->lock_name), \
384 "%s:port", (_ifname)); \
385 mtx_init(&(__port)->lock, (__port)->lock_name, \
388 #define SFXGE_PORT_LOCK_DESTROY(_port) \
389 mtx_destroy(&(_port)->lock)
390 #define SFXGE_PORT_LOCK(_port) \
391 mtx_lock(&(_port)->lock)
392 #define SFXGE_PORT_UNLOCK(_port) \
393 mtx_unlock(&(_port)->lock)
394 #define SFXGE_PORT_LOCK_ASSERT_OWNED(_port) \
395 mtx_assert(&(_port)->lock, MA_OWNED)
397 #define SFXGE_MCDI_LOCK_INIT(_mcdi, _ifname) \
399 struct sfxge_mcdi *__mcdi = (_mcdi); \
401 snprintf((__mcdi)->lock_name, \
402 sizeof((__mcdi)->lock_name), \
403 "%s:mcdi", (_ifname)); \
404 mtx_init(&(__mcdi)->lock, (__mcdi)->lock_name, \
407 #define SFXGE_MCDI_LOCK_DESTROY(_mcdi) \
408 mtx_destroy(&(_mcdi)->lock)
409 #define SFXGE_MCDI_LOCK(_mcdi) \
410 mtx_lock(&(_mcdi)->lock)
411 #define SFXGE_MCDI_UNLOCK(_mcdi) \
412 mtx_unlock(&(_mcdi)->lock)
413 #define SFXGE_MCDI_LOCK_ASSERT_OWNED(_mcdi) \
414 mtx_assert(&(_mcdi)->lock, MA_OWNED)
416 #define SFXGE_EVQ_LOCK_INIT(_evq, _ifname, _evq_index) \
418 struct sfxge_evq *__evq = (_evq); \
420 snprintf((__evq)->lock_name, \
421 sizeof((__evq)->lock_name), \
422 "%s:evq%u", (_ifname), (_evq_index)); \
423 mtx_init(&(__evq)->lock, (__evq)->lock_name, \
426 #define SFXGE_EVQ_LOCK_DESTROY(_evq) \
427 mtx_destroy(&(_evq)->lock)
428 #define SFXGE_EVQ_LOCK(_evq) \
429 mtx_lock(&(_evq)->lock)
430 #define SFXGE_EVQ_UNLOCK(_evq) \
431 mtx_unlock(&(_evq)->lock)
432 #define SFXGE_EVQ_LOCK_ASSERT_OWNED(_evq) \
433 mtx_assert(&(_evq)->lock, MA_OWNED)
435 #endif /* _SFXGE_H */