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_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 */
116 #define SFXGE_MAGIC_RESERVED 0x8000
118 #define SFXGE_MAGIC_DMAQ_LABEL_WIDTH 6
119 #define SFXGE_MAGIC_DMAQ_LABEL_MASK \
120 ((1 << SFXGE_MAGIC_DMAQ_LABEL_WIDTH) - 1)
123 SFXGE_SW_EV_RX_QFLUSH_DONE = 1,
124 SFXGE_SW_EV_RX_QFLUSH_FAILED,
125 SFXGE_SW_EV_RX_QREFILL,
126 SFXGE_SW_EV_TX_QFLUSH_DONE,
129 #define SFXGE_SW_EV_MAGIC(_sw_ev) \
130 (SFXGE_MAGIC_RESERVED | ((_sw_ev) << SFXGE_MAGIC_DMAQ_LABEL_WIDTH))
132 static inline uint16_t
133 sfxge_sw_ev_mk_magic(enum sfxge_sw_ev sw_ev, unsigned int label)
135 KASSERT((label & SFXGE_MAGIC_DMAQ_LABEL_MASK) == label,
136 ("(label & SFXGE_MAGIC_DMAQ_LABEL_MASK) != label"));
137 return SFXGE_SW_EV_MAGIC(sw_ev) | label;
140 static inline uint16_t
141 sfxge_sw_ev_rxq_magic(enum sfxge_sw_ev sw_ev, struct sfxge_rxq *rxq)
143 return sfxge_sw_ev_mk_magic(sw_ev, 0);
146 static inline uint16_t
147 sfxge_sw_ev_txq_magic(enum sfxge_sw_ev sw_ev, struct sfxge_txq *txq)
149 return sfxge_sw_ev_mk_magic(sw_ev, txq->type);
152 enum sfxge_evq_state {
153 SFXGE_EVQ_UNINITIALIZED = 0,
154 SFXGE_EVQ_INITIALIZED,
159 #define SFXGE_EV_BATCH 16384
161 #define SFXGE_CALLOUT_TICKS 100
164 /* Structure members below are sorted by usage order */
165 struct sfxge_softc *sc;
168 enum sfxge_evq_state init_state;
171 unsigned int read_ptr;
173 unsigned int rx_done;
174 unsigned int tx_done;
176 /* Linked list of TX queues with completions to process */
177 struct sfxge_txq *txq;
178 struct sfxge_txq **txqs;
180 /* Structure members not used on event processing path */
181 unsigned int buf_base_id;
182 unsigned int entries;
183 char lock_name[SFXGE_LOCK_NAME_MAX];
184 } __aligned(CACHE_LINE_SIZE);
186 #define SFXGE_NDESCS 1024
187 #define SFXGE_MODERATION 30
189 enum sfxge_intr_state {
190 SFXGE_INTR_UNINITIALIZED = 0,
191 SFXGE_INTR_INITIALIZED,
196 struct sfxge_intr_hdl {
199 struct resource *eih_res;
203 enum sfxge_intr_state state;
204 struct resource *msix_res;
205 struct sfxge_intr_hdl *table;
212 enum sfxge_mcdi_state {
213 SFXGE_MCDI_UNINITIALIZED = 0,
214 SFXGE_MCDI_INITIALIZED,
222 enum sfxge_mcdi_state state;
223 efx_mcdi_transport_t transport;
225 /* Only used in debugging output */
226 char lock_name[SFXGE_LOCK_NAME_MAX];
229 struct sfxge_hw_stats {
235 enum sfxge_port_state {
236 SFXGE_PORT_UNINITIALIZED = 0,
237 SFXGE_PORT_INITIALIZED,
242 struct sfxge_softc *sc;
244 enum sfxge_port_state init_state;
245 #ifndef SFXGE_HAVE_PAUSE_MEDIAOPTS
246 unsigned int wanted_fc;
248 struct sfxge_hw_stats phy_stats;
249 struct sfxge_hw_stats mac_stats;
250 efx_link_mode_t link_mode;
251 uint8_t mcast_addrs[EFX_MAC_MULTICAST_LIST_MAX *
253 unsigned int mcast_count;
255 /* Only used in debugging output */
256 char lock_name[SFXGE_LOCK_NAME_MAX];
259 enum sfxge_softc_state {
260 SFXGE_UNINITIALIZED = 0,
268 struct sx softc_lock;
269 char softc_lock_name[SFXGE_LOCK_NAME_MAX];
270 enum sfxge_softc_state init_state;
272 unsigned int if_flags;
273 struct sysctl_oid *stats_node;
274 struct sysctl_oid *txqs_node;
276 struct task task_reset;
282 efsys_lock_t enp_lock;
284 unsigned int rxq_entries;
285 unsigned int txq_entries;
287 bus_dma_tag_t parent_dma_tag;
290 struct sfxge_intr intr;
291 struct sfxge_mcdi mcdi;
292 struct sfxge_port port;
293 uint32_t buffer_table_next;
295 struct sfxge_evq *evq[SFXGE_RX_SCALE_MAX];
296 unsigned int ev_moderation;
298 clock_t ev_stats_update_time;
299 uint64_t ev_stats[EV_NQSTATS];
302 unsigned int max_rss_channels;
303 uma_zone_t rxq_cache;
304 struct sfxge_rxq *rxq[SFXGE_RX_SCALE_MAX];
305 unsigned int rx_indir_table[EFX_RSS_TBL_SIZE];
307 struct sfxge_txq *txq[SFXGE_TXQ_NTYPES + SFXGE_RX_SCALE_MAX];
309 struct ifmedia media;
311 size_t rx_prefix_size;
312 size_t rx_buffer_size;
313 size_t rx_buffer_align;
314 uma_zone_t rx_buffer_zone;
316 struct callout tick_callout;
318 unsigned int evq_max;
319 unsigned int evq_count;
320 unsigned int rxq_count;
321 unsigned int txq_count;
323 unsigned int tso_fw_assisted;
324 #define SFXGE_FATSOV1 (1 << 0)
325 #define SFXGE_FATSOV2 (1 << 1)
327 #if EFSYS_OPT_MCDI_LOGGING
332 #define SFXGE_LINK_UP(sc) \
333 ((sc)->port.link_mode != EFX_LINK_DOWN && \
334 (sc)->port.link_mode != EFX_LINK_UNKNOWN)
335 #define SFXGE_RUNNING(sc) ((sc)->ifnet->if_drv_flags & IFF_DRV_RUNNING)
337 #define SFXGE_PARAM(_name) "hw.sfxge." #_name
339 SYSCTL_DECL(_hw_sfxge);
344 extern void sfxge_schedule_reset(struct sfxge_softc *sc);
345 extern void sfxge_sram_buf_tbl_alloc(struct sfxge_softc *sc, size_t n,
351 extern int sfxge_dma_init(struct sfxge_softc *sc);
352 extern void sfxge_dma_fini(struct sfxge_softc *sc);
353 extern int sfxge_dma_alloc(struct sfxge_softc *sc, bus_size_t len,
355 extern void sfxge_dma_free(efsys_mem_t *esmp);
356 extern int sfxge_dma_map_sg_collapse(bus_dma_tag_t tag, bus_dmamap_t map,
358 bus_dma_segment_t *segs,
359 int *nsegs, int maxsegs);
364 extern int sfxge_ev_init(struct sfxge_softc *sc);
365 extern void sfxge_ev_fini(struct sfxge_softc *sc);
366 extern int sfxge_ev_start(struct sfxge_softc *sc);
367 extern void sfxge_ev_stop(struct sfxge_softc *sc);
368 extern int sfxge_ev_qpoll(struct sfxge_evq *evq);
373 extern int sfxge_intr_init(struct sfxge_softc *sc);
374 extern void sfxge_intr_fini(struct sfxge_softc *sc);
375 extern int sfxge_intr_start(struct sfxge_softc *sc);
376 extern void sfxge_intr_stop(struct sfxge_softc *sc);
381 extern int sfxge_mcdi_init(struct sfxge_softc *sc);
382 extern void sfxge_mcdi_fini(struct sfxge_softc *sc);
383 extern int sfxge_mcdi_ioctl(struct sfxge_softc *sc, sfxge_ioc_t *ip);
386 * From sfxge_nvram.c.
388 extern int sfxge_nvram_ioctl(struct sfxge_softc *sc, sfxge_ioc_t *ip);
393 extern int sfxge_port_init(struct sfxge_softc *sc);
394 extern void sfxge_port_fini(struct sfxge_softc *sc);
395 extern int sfxge_port_start(struct sfxge_softc *sc);
396 extern void sfxge_port_stop(struct sfxge_softc *sc);
397 extern void sfxge_mac_link_update(struct sfxge_softc *sc,
398 efx_link_mode_t mode);
399 extern int sfxge_mac_filter_set(struct sfxge_softc *sc);
400 extern int sfxge_port_ifmedia_init(struct sfxge_softc *sc);
401 extern void sfxge_port_update_stats(struct sfxge_softc *sc);
403 #define SFXGE_MAX_MTU (9 * 1024)
405 #define SFXGE_ADAPTER_LOCK_INIT(_sc, _ifname) \
407 struct sfxge_softc *__sc = (_sc); \
409 snprintf((__sc)->softc_lock_name, \
410 sizeof((__sc)->softc_lock_name), \
411 "%s:softc", (_ifname)); \
412 sx_init(&(__sc)->softc_lock, (__sc)->softc_lock_name); \
414 #define SFXGE_ADAPTER_LOCK_DESTROY(_sc) \
415 sx_destroy(&(_sc)->softc_lock)
416 #define SFXGE_ADAPTER_LOCK(_sc) \
417 sx_xlock(&(_sc)->softc_lock)
418 #define SFXGE_ADAPTER_UNLOCK(_sc) \
419 sx_xunlock(&(_sc)->softc_lock)
420 #define SFXGE_ADAPTER_LOCK_ASSERT_OWNED(_sc) \
421 sx_assert(&(_sc)->softc_lock, LA_XLOCKED)
423 #define SFXGE_PORT_LOCK_INIT(_port, _ifname) \
425 struct sfxge_port *__port = (_port); \
427 snprintf((__port)->lock_name, \
428 sizeof((__port)->lock_name), \
429 "%s:port", (_ifname)); \
430 mtx_init(&(__port)->lock, (__port)->lock_name, \
433 #define SFXGE_PORT_LOCK_DESTROY(_port) \
434 mtx_destroy(&(_port)->lock)
435 #define SFXGE_PORT_LOCK(_port) \
436 mtx_lock(&(_port)->lock)
437 #define SFXGE_PORT_UNLOCK(_port) \
438 mtx_unlock(&(_port)->lock)
439 #define SFXGE_PORT_LOCK_ASSERT_OWNED(_port) \
440 mtx_assert(&(_port)->lock, MA_OWNED)
442 #define SFXGE_MCDI_LOCK_INIT(_mcdi, _ifname) \
444 struct sfxge_mcdi *__mcdi = (_mcdi); \
446 snprintf((__mcdi)->lock_name, \
447 sizeof((__mcdi)->lock_name), \
448 "%s:mcdi", (_ifname)); \
449 mtx_init(&(__mcdi)->lock, (__mcdi)->lock_name, \
452 #define SFXGE_MCDI_LOCK_DESTROY(_mcdi) \
453 mtx_destroy(&(_mcdi)->lock)
454 #define SFXGE_MCDI_LOCK(_mcdi) \
455 mtx_lock(&(_mcdi)->lock)
456 #define SFXGE_MCDI_UNLOCK(_mcdi) \
457 mtx_unlock(&(_mcdi)->lock)
458 #define SFXGE_MCDI_LOCK_ASSERT_OWNED(_mcdi) \
459 mtx_assert(&(_mcdi)->lock, MA_OWNED)
461 #define SFXGE_EVQ_LOCK_INIT(_evq, _ifname, _evq_index) \
463 struct sfxge_evq *__evq = (_evq); \
465 snprintf((__evq)->lock_name, \
466 sizeof((__evq)->lock_name), \
467 "%s:evq%u", (_ifname), (_evq_index)); \
468 mtx_init(&(__evq)->lock, (__evq)->lock_name, \
471 #define SFXGE_EVQ_LOCK_DESTROY(_evq) \
472 mtx_destroy(&(_evq)->lock)
473 #define SFXGE_EVQ_LOCK(_evq) \
474 mtx_lock(&(_evq)->lock)
475 #define SFXGE_EVQ_UNLOCK(_evq) \
476 mtx_unlock(&(_evq)->lock)
477 #define SFXGE_EVQ_LOCK_ASSERT_OWNED(_evq) \
478 mtx_assert(&(_evq)->lock, MA_OWNED)
480 #endif /* _SFXGE_H */