2 * Copyright (c) 2010-2016 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_var.h>
49 #include <net/if_media.h>
50 #include <net/if_types.h>
52 #include "sfxge_ioc.h"
58 #define DBGPRINT(dev, fmt, args...) \
59 device_printf(dev, "%s: " fmt "\n", __func__, ## args)
61 #define DBGPRINT(dev, fmt, args...)
65 * Backward-compatibility
67 #ifndef CACHE_LINE_SIZE
68 /* This should be right on most machines the driver will be used on, and
69 * we needn't care too much about wasting a few KB per interface.
71 #define CACHE_LINE_SIZE 128
74 #ifndef IFCAP_LINKSTATE
75 #define IFCAP_LINKSTATE 0
78 #ifndef IFCAP_VLAN_HWTSO
79 #define IFCAP_VLAN_HWTSO 0
83 #define IFM_10G_T IFM_UNKNOWN
87 #define IFM_10G_KX4 IFM_10G_CX4
91 #define IFM_40G_CR4 IFM_UNKNOWN
94 #if (__FreeBSD_version >= 800501 && __FreeBSD_version < 900000) || \
95 __FreeBSD_version >= 900003
96 #define SFXGE_HAVE_DESCRIBE_INTR
99 #ifdef IFM_ETH_RXPAUSE
100 #define SFXGE_HAVE_PAUSE_MEDIAOPTS
104 #define CTLTYPE_U64 CTLTYPE_QUAD
107 #include "sfxge_rx.h"
108 #include "sfxge_tx.h"
110 #define ROUNDUP_POW_OF_TWO(_n) (1ULL << flsl((_n) - 1))
112 #define SFXGE_IP_ALIGN 2
114 #define SFXGE_ETHERTYPE_LOOPBACK 0x9000 /* Xerox loopback */
117 #define SFXGE_MAGIC_RESERVED 0x8000
119 #define SFXGE_MAGIC_DMAQ_LABEL_WIDTH 6
120 #define SFXGE_MAGIC_DMAQ_LABEL_MASK \
121 ((1 << SFXGE_MAGIC_DMAQ_LABEL_WIDTH) - 1)
124 SFXGE_SW_EV_RX_QFLUSH_DONE = 1,
125 SFXGE_SW_EV_RX_QFLUSH_FAILED,
126 SFXGE_SW_EV_RX_QREFILL,
127 SFXGE_SW_EV_TX_QFLUSH_DONE,
130 #define SFXGE_SW_EV_MAGIC(_sw_ev) \
131 (SFXGE_MAGIC_RESERVED | ((_sw_ev) << SFXGE_MAGIC_DMAQ_LABEL_WIDTH))
133 static inline uint16_t
134 sfxge_sw_ev_mk_magic(enum sfxge_sw_ev sw_ev, unsigned int label)
136 KASSERT((label & SFXGE_MAGIC_DMAQ_LABEL_MASK) == label,
137 ("(label & SFXGE_MAGIC_DMAQ_LABEL_MASK) != label"));
138 return SFXGE_SW_EV_MAGIC(sw_ev) | label;
141 static inline uint16_t
142 sfxge_sw_ev_rxq_magic(enum sfxge_sw_ev sw_ev, struct sfxge_rxq *rxq)
144 return sfxge_sw_ev_mk_magic(sw_ev, 0);
147 static inline uint16_t
148 sfxge_sw_ev_txq_magic(enum sfxge_sw_ev sw_ev, struct sfxge_txq *txq)
150 return sfxge_sw_ev_mk_magic(sw_ev, txq->type);
153 enum sfxge_evq_state {
154 SFXGE_EVQ_UNINITIALIZED = 0,
155 SFXGE_EVQ_INITIALIZED,
160 #define SFXGE_EV_BATCH 16384
163 /* Structure members below are sorted by usage order */
164 struct sfxge_softc *sc;
167 enum sfxge_evq_state init_state;
170 unsigned int read_ptr;
172 unsigned int rx_done;
173 unsigned int tx_done;
175 /* Linked list of TX queues with completions to process */
176 struct sfxge_txq *txq;
177 struct sfxge_txq **txqs;
179 /* Structure members not used on event processing path */
180 unsigned int buf_base_id;
181 unsigned int entries;
182 char lock_name[SFXGE_LOCK_NAME_MAX];
183 } __aligned(CACHE_LINE_SIZE);
185 #define SFXGE_NDESCS 1024
186 #define SFXGE_MODERATION 30
188 enum sfxge_intr_state {
189 SFXGE_INTR_UNINITIALIZED = 0,
190 SFXGE_INTR_INITIALIZED,
195 struct sfxge_intr_hdl {
198 struct resource *eih_res;
202 enum sfxge_intr_state state;
203 struct resource *msix_res;
204 struct sfxge_intr_hdl *table;
211 enum sfxge_mcdi_state {
212 SFXGE_MCDI_UNINITIALIZED = 0,
213 SFXGE_MCDI_INITIALIZED,
221 enum sfxge_mcdi_state state;
222 efx_mcdi_transport_t transport;
224 /* Only used in debugging output */
225 char lock_name[SFXGE_LOCK_NAME_MAX];
228 struct sfxge_hw_stats {
234 enum sfxge_port_state {
235 SFXGE_PORT_UNINITIALIZED = 0,
236 SFXGE_PORT_INITIALIZED,
241 struct sfxge_softc *sc;
243 enum sfxge_port_state init_state;
244 #ifndef SFXGE_HAVE_PAUSE_MEDIAOPTS
245 unsigned int wanted_fc;
247 struct sfxge_hw_stats phy_stats;
248 struct sfxge_hw_stats mac_stats;
249 efx_link_mode_t link_mode;
250 uint8_t mcast_addrs[EFX_MAC_MULTICAST_LIST_MAX *
252 unsigned int mcast_count;
254 /* Only used in debugging output */
255 char lock_name[SFXGE_LOCK_NAME_MAX];
258 enum sfxge_softc_state {
259 SFXGE_UNINITIALIZED = 0,
267 struct sx softc_lock;
268 char softc_lock_name[SFXGE_LOCK_NAME_MAX];
269 enum sfxge_softc_state init_state;
271 unsigned int if_flags;
272 struct sysctl_oid *stats_node;
273 struct sysctl_oid *txqs_node;
275 struct task task_reset;
281 efsys_lock_t enp_lock;
283 unsigned int rxq_entries;
284 unsigned int txq_entries;
286 bus_dma_tag_t parent_dma_tag;
289 struct sfxge_intr intr;
290 struct sfxge_mcdi mcdi;
291 struct sfxge_port port;
292 uint32_t buffer_table_next;
294 struct sfxge_evq *evq[SFXGE_RX_SCALE_MAX];
295 unsigned int ev_moderation;
297 clock_t ev_stats_update_time;
298 uint64_t ev_stats[EV_NQSTATS];
301 unsigned int max_rss_channels;
302 uma_zone_t rxq_cache;
303 struct sfxge_rxq *rxq[SFXGE_RX_SCALE_MAX];
304 unsigned int rx_indir_table[EFX_RSS_TBL_SIZE];
306 struct sfxge_txq *txq[SFXGE_TXQ_NTYPES + SFXGE_RX_SCALE_MAX];
308 struct ifmedia media;
310 size_t rx_prefix_size;
311 size_t rx_buffer_size;
312 size_t rx_buffer_align;
315 unsigned int evq_max;
316 unsigned int evq_count;
317 unsigned int rxq_count;
318 unsigned int txq_count;
320 unsigned int tso_fw_assisted;
321 #define SFXGE_FATSOV1 (1 << 0)
322 #define SFXGE_FATSOV2 (1 << 1)
324 #if EFSYS_OPT_MCDI_LOGGING
329 #define SFXGE_LINK_UP(sc) ((sc)->port.link_mode != EFX_LINK_DOWN)
330 #define SFXGE_RUNNING(sc) ((sc)->ifnet->if_drv_flags & IFF_DRV_RUNNING)
332 #define SFXGE_PARAM(_name) "hw.sfxge." #_name
334 SYSCTL_DECL(_hw_sfxge);
339 extern void sfxge_schedule_reset(struct sfxge_softc *sc);
340 extern void sfxge_sram_buf_tbl_alloc(struct sfxge_softc *sc, size_t n,
346 extern int sfxge_dma_init(struct sfxge_softc *sc);
347 extern void sfxge_dma_fini(struct sfxge_softc *sc);
348 extern int sfxge_dma_alloc(struct sfxge_softc *sc, bus_size_t len,
350 extern void sfxge_dma_free(efsys_mem_t *esmp);
351 extern int sfxge_dma_map_sg_collapse(bus_dma_tag_t tag, bus_dmamap_t map,
353 bus_dma_segment_t *segs,
354 int *nsegs, int maxsegs);
359 extern int sfxge_ev_init(struct sfxge_softc *sc);
360 extern void sfxge_ev_fini(struct sfxge_softc *sc);
361 extern int sfxge_ev_start(struct sfxge_softc *sc);
362 extern void sfxge_ev_stop(struct sfxge_softc *sc);
363 extern int sfxge_ev_qpoll(struct sfxge_evq *evq);
368 extern int sfxge_intr_init(struct sfxge_softc *sc);
369 extern void sfxge_intr_fini(struct sfxge_softc *sc);
370 extern int sfxge_intr_start(struct sfxge_softc *sc);
371 extern void sfxge_intr_stop(struct sfxge_softc *sc);
376 extern int sfxge_mcdi_init(struct sfxge_softc *sc);
377 extern void sfxge_mcdi_fini(struct sfxge_softc *sc);
378 extern int sfxge_mcdi_ioctl(struct sfxge_softc *sc, sfxge_ioc_t *ip);
381 * From sfxge_nvram.c.
383 extern int sfxge_nvram_ioctl(struct sfxge_softc *sc, sfxge_ioc_t *ip);
388 extern int sfxge_port_init(struct sfxge_softc *sc);
389 extern void sfxge_port_fini(struct sfxge_softc *sc);
390 extern int sfxge_port_start(struct sfxge_softc *sc);
391 extern void sfxge_port_stop(struct sfxge_softc *sc);
392 extern void sfxge_mac_link_update(struct sfxge_softc *sc,
393 efx_link_mode_t mode);
394 extern int sfxge_mac_filter_set(struct sfxge_softc *sc);
395 extern int sfxge_port_ifmedia_init(struct sfxge_softc *sc);
396 extern uint64_t sfxge_get_counter(struct ifnet *ifp, ift_counter c);
398 #define SFXGE_MAX_MTU (9 * 1024)
400 #define SFXGE_ADAPTER_LOCK_INIT(_sc, _ifname) \
402 struct sfxge_softc *__sc = (_sc); \
404 snprintf((__sc)->softc_lock_name, \
405 sizeof((__sc)->softc_lock_name), \
406 "%s:softc", (_ifname)); \
407 sx_init(&(__sc)->softc_lock, (__sc)->softc_lock_name); \
409 #define SFXGE_ADAPTER_LOCK_DESTROY(_sc) \
410 sx_destroy(&(_sc)->softc_lock)
411 #define SFXGE_ADAPTER_LOCK(_sc) \
412 sx_xlock(&(_sc)->softc_lock)
413 #define SFXGE_ADAPTER_UNLOCK(_sc) \
414 sx_xunlock(&(_sc)->softc_lock)
415 #define SFXGE_ADAPTER_LOCK_ASSERT_OWNED(_sc) \
416 sx_assert(&(_sc)->softc_lock, LA_XLOCKED)
418 #define SFXGE_PORT_LOCK_INIT(_port, _ifname) \
420 struct sfxge_port *__port = (_port); \
422 snprintf((__port)->lock_name, \
423 sizeof((__port)->lock_name), \
424 "%s:port", (_ifname)); \
425 mtx_init(&(__port)->lock, (__port)->lock_name, \
428 #define SFXGE_PORT_LOCK_DESTROY(_port) \
429 mtx_destroy(&(_port)->lock)
430 #define SFXGE_PORT_LOCK(_port) \
431 mtx_lock(&(_port)->lock)
432 #define SFXGE_PORT_UNLOCK(_port) \
433 mtx_unlock(&(_port)->lock)
434 #define SFXGE_PORT_LOCK_ASSERT_OWNED(_port) \
435 mtx_assert(&(_port)->lock, MA_OWNED)
437 #define SFXGE_MCDI_LOCK_INIT(_mcdi, _ifname) \
439 struct sfxge_mcdi *__mcdi = (_mcdi); \
441 snprintf((__mcdi)->lock_name, \
442 sizeof((__mcdi)->lock_name), \
443 "%s:mcdi", (_ifname)); \
444 mtx_init(&(__mcdi)->lock, (__mcdi)->lock_name, \
447 #define SFXGE_MCDI_LOCK_DESTROY(_mcdi) \
448 mtx_destroy(&(_mcdi)->lock)
449 #define SFXGE_MCDI_LOCK(_mcdi) \
450 mtx_lock(&(_mcdi)->lock)
451 #define SFXGE_MCDI_UNLOCK(_mcdi) \
452 mtx_unlock(&(_mcdi)->lock)
453 #define SFXGE_MCDI_LOCK_ASSERT_OWNED(_mcdi) \
454 mtx_assert(&(_mcdi)->lock, MA_OWNED)
456 #define SFXGE_EVQ_LOCK_INIT(_evq, _ifname, _evq_index) \
458 struct sfxge_evq *__evq = (_evq); \
460 snprintf((__evq)->lock_name, \
461 sizeof((__evq)->lock_name), \
462 "%s:evq%u", (_ifname), (_evq_index)); \
463 mtx_init(&(__evq)->lock, (__evq)->lock_name, \
466 #define SFXGE_EVQ_LOCK_DESTROY(_evq) \
467 mtx_destroy(&(_evq)->lock)
468 #define SFXGE_EVQ_LOCK(_evq) \
469 mtx_lock(&(_evq)->lock)
470 #define SFXGE_EVQ_UNLOCK(_evq) \
471 mtx_unlock(&(_evq)->lock)
472 #define SFXGE_EVQ_LOCK_ASSERT_OWNED(_evq) \
473 mtx_assert(&(_evq)->lock, MA_OWNED)
475 #endif /* _SFXGE_H */