2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2010-2016 Solarflare Communications Inc.
7 * This software was developed in part by Philip Paeps under contract for
8 * Solarflare Communications, Inc.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions are met:
13 * 1. Redistributions of source code must retain the above copyright notice,
14 * this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright notice,
16 * this list of conditions and the following disclaimer in the documentation
17 * and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
29 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 * The views and conclusions contained in the software and documentation are
32 * those of the authors and should not be interpreted as representing official
33 * policies, either expressed or implied, of the FreeBSD Project.
41 #include <sys/param.h>
42 #include <sys/kernel.h>
43 #include <sys/socket.h>
44 #include <sys/sysctl.h>
48 #include <net/ethernet.h>
50 #include <net/if_var.h>
51 #include <net/if_media.h>
52 #include <net/if_types.h>
54 #include "sfxge_ioc.h"
60 #define DBGPRINT(dev, fmt, args...) \
61 device_printf(dev, "%s: " fmt "\n", __func__, ## args)
63 #define DBGPRINT(dev, fmt, args...)
67 * Backward-compatibility
69 #ifndef CACHE_LINE_SIZE
70 /* This should be right on most machines the driver will be used on, and
71 * we needn't care too much about wasting a few KB per interface.
73 #define CACHE_LINE_SIZE 128
76 #ifndef IFCAP_LINKSTATE
77 #define IFCAP_LINKSTATE 0
80 #ifndef IFCAP_VLAN_HWTSO
81 #define IFCAP_VLAN_HWTSO 0
85 #define IFM_10G_T IFM_UNKNOWN
89 #define IFM_10G_KX4 IFM_10G_CX4
93 #define IFM_40G_CR4 IFM_UNKNOWN
96 #if (__FreeBSD_version >= 800501 && __FreeBSD_version < 900000) || \
97 __FreeBSD_version >= 900003
98 #define SFXGE_HAVE_DESCRIBE_INTR
101 #ifdef IFM_ETH_RXPAUSE
102 #define SFXGE_HAVE_PAUSE_MEDIAOPTS
106 #define CTLTYPE_U64 CTLTYPE_QUAD
109 #include "sfxge_rx.h"
110 #include "sfxge_tx.h"
112 #define ROUNDUP_POW_OF_TWO(_n) (1ULL << flsl((_n) - 1))
114 #define SFXGE_IP_ALIGN 2
116 #define SFXGE_ETHERTYPE_LOOPBACK 0x9000 /* Xerox loopback */
119 #define SFXGE_MAGIC_RESERVED 0x8000
121 #define SFXGE_MAGIC_DMAQ_LABEL_WIDTH 6
122 #define SFXGE_MAGIC_DMAQ_LABEL_MASK \
123 ((1 << SFXGE_MAGIC_DMAQ_LABEL_WIDTH) - 1)
126 SFXGE_SW_EV_RX_QFLUSH_DONE = 1,
127 SFXGE_SW_EV_RX_QFLUSH_FAILED,
128 SFXGE_SW_EV_RX_QREFILL,
129 SFXGE_SW_EV_TX_QFLUSH_DONE,
132 #define SFXGE_SW_EV_MAGIC(_sw_ev) \
133 (SFXGE_MAGIC_RESERVED | ((_sw_ev) << SFXGE_MAGIC_DMAQ_LABEL_WIDTH))
135 static inline uint16_t
136 sfxge_sw_ev_mk_magic(enum sfxge_sw_ev sw_ev, unsigned int label)
138 KASSERT((label & SFXGE_MAGIC_DMAQ_LABEL_MASK) == label,
139 ("(label & SFXGE_MAGIC_DMAQ_LABEL_MASK) != label"));
140 return SFXGE_SW_EV_MAGIC(sw_ev) | label;
143 static inline uint16_t
144 sfxge_sw_ev_rxq_magic(enum sfxge_sw_ev sw_ev, struct sfxge_rxq *rxq)
146 return sfxge_sw_ev_mk_magic(sw_ev, 0);
149 static inline uint16_t
150 sfxge_sw_ev_txq_magic(enum sfxge_sw_ev sw_ev, struct sfxge_txq *txq)
152 return sfxge_sw_ev_mk_magic(sw_ev, txq->type);
155 enum sfxge_evq_state {
156 SFXGE_EVQ_UNINITIALIZED = 0,
157 SFXGE_EVQ_INITIALIZED,
162 #define SFXGE_EV_BATCH 16384
164 #define SFXGE_STATS_UPDATE_PERIOD_MS 1000
167 /* Structure members below are sorted by usage order */
168 struct sfxge_softc *sc;
171 enum sfxge_evq_state init_state;
174 unsigned int read_ptr;
176 unsigned int rx_done;
177 unsigned int tx_done;
179 /* Linked list of TX queues with completions to process */
180 struct sfxge_txq *txq;
181 struct sfxge_txq **txqs;
183 /* Structure members not used on event processing path */
184 unsigned int buf_base_id;
185 unsigned int entries;
186 char lock_name[SFXGE_LOCK_NAME_MAX];
187 } __aligned(CACHE_LINE_SIZE);
189 #define SFXGE_NDESCS 1024
190 #define SFXGE_MODERATION 30
192 enum sfxge_intr_state {
193 SFXGE_INTR_UNINITIALIZED = 0,
194 SFXGE_INTR_INITIALIZED,
199 struct sfxge_intr_hdl {
202 struct resource *eih_res;
206 enum sfxge_intr_state state;
207 struct resource *msix_res;
208 struct sfxge_intr_hdl *table;
215 enum sfxge_mcdi_state {
216 SFXGE_MCDI_UNINITIALIZED = 0,
217 SFXGE_MCDI_INITIALIZED,
225 enum sfxge_mcdi_state state;
226 efx_mcdi_transport_t transport;
228 /* Only used in debugging output */
229 char lock_name[SFXGE_LOCK_NAME_MAX];
232 struct sfxge_hw_stats {
238 enum sfxge_port_state {
239 SFXGE_PORT_UNINITIALIZED = 0,
240 SFXGE_PORT_INITIALIZED,
245 struct sfxge_softc *sc;
247 enum sfxge_port_state init_state;
248 #ifndef SFXGE_HAVE_PAUSE_MEDIAOPTS
249 unsigned int wanted_fc;
251 struct sfxge_hw_stats phy_stats;
252 struct sfxge_hw_stats mac_stats;
253 uint16_t stats_update_period_ms;
254 efx_link_mode_t link_mode;
255 uint8_t mcast_addrs[EFX_MAC_MULTICAST_LIST_MAX *
257 unsigned int mcast_count;
259 /* Only used in debugging output */
260 char lock_name[SFXGE_LOCK_NAME_MAX];
263 enum sfxge_softc_state {
264 SFXGE_UNINITIALIZED = 0,
272 struct sx softc_lock;
273 char softc_lock_name[SFXGE_LOCK_NAME_MAX];
274 enum sfxge_softc_state init_state;
276 unsigned int if_flags;
277 struct sysctl_oid *stats_node;
278 struct sysctl_oid *txqs_node;
280 struct task task_reset;
286 efsys_lock_t enp_lock;
288 unsigned int rxq_entries;
289 unsigned int txq_entries;
291 bus_dma_tag_t parent_dma_tag;
294 struct sfxge_intr intr;
295 struct sfxge_mcdi mcdi;
296 struct sfxge_port port;
297 uint32_t buffer_table_next;
299 struct sfxge_evq *evq[SFXGE_RX_SCALE_MAX];
300 unsigned int ev_moderation;
302 clock_t ev_stats_update_time;
303 uint64_t ev_stats[EV_NQSTATS];
306 unsigned int max_rss_channels;
307 struct sfxge_rxq *rxq[SFXGE_RX_SCALE_MAX];
308 unsigned int rx_indir_table[EFX_RSS_TBL_SIZE];
310 struct sfxge_txq *txq[SFXGE_TXQ_NTYPES + SFXGE_RX_SCALE_MAX];
312 struct ifmedia media;
314 size_t rx_prefix_size;
315 size_t rx_buffer_size;
316 size_t rx_buffer_align;
319 unsigned int evq_max;
320 unsigned int evq_count;
321 unsigned int rxq_count;
322 unsigned int txq_count;
324 unsigned int tso_fw_assisted;
325 #define SFXGE_FATSOV1 (1 << 0)
326 #define SFXGE_FATSOV2 (1 << 1)
328 #if EFSYS_OPT_MCDI_LOGGING
333 #define SFXGE_LINK_UP(sc) \
334 ((sc)->port.link_mode != EFX_LINK_DOWN && \
335 (sc)->port.link_mode != EFX_LINK_UNKNOWN)
336 #define SFXGE_RUNNING(sc) ((sc)->ifnet->if_drv_flags & IFF_DRV_RUNNING)
338 #define SFXGE_PARAM(_name) "hw.sfxge." #_name
340 SYSCTL_DECL(_hw_sfxge);
345 extern void sfxge_schedule_reset(struct sfxge_softc *sc);
346 extern void sfxge_sram_buf_tbl_alloc(struct sfxge_softc *sc, size_t n,
352 extern int sfxge_dma_init(struct sfxge_softc *sc);
353 extern void sfxge_dma_fini(struct sfxge_softc *sc);
354 extern int sfxge_dma_alloc(struct sfxge_softc *sc, bus_size_t len,
356 extern void sfxge_dma_free(efsys_mem_t *esmp);
357 extern int sfxge_dma_map_sg_collapse(bus_dma_tag_t tag, bus_dmamap_t map,
359 bus_dma_segment_t *segs,
360 int *nsegs, int maxsegs);
365 extern int sfxge_ev_init(struct sfxge_softc *sc);
366 extern void sfxge_ev_fini(struct sfxge_softc *sc);
367 extern int sfxge_ev_start(struct sfxge_softc *sc);
368 extern void sfxge_ev_stop(struct sfxge_softc *sc);
369 extern int sfxge_ev_qpoll(struct sfxge_evq *evq);
374 extern int sfxge_intr_init(struct sfxge_softc *sc);
375 extern void sfxge_intr_fini(struct sfxge_softc *sc);
376 extern int sfxge_intr_start(struct sfxge_softc *sc);
377 extern void sfxge_intr_stop(struct sfxge_softc *sc);
382 extern int sfxge_mcdi_init(struct sfxge_softc *sc);
383 extern void sfxge_mcdi_fini(struct sfxge_softc *sc);
384 extern int sfxge_mcdi_ioctl(struct sfxge_softc *sc, sfxge_ioc_t *ip);
387 * From sfxge_nvram.c.
389 extern int sfxge_nvram_ioctl(struct sfxge_softc *sc, sfxge_ioc_t *ip);
394 extern int sfxge_port_init(struct sfxge_softc *sc);
395 extern void sfxge_port_fini(struct sfxge_softc *sc);
396 extern int sfxge_port_start(struct sfxge_softc *sc);
397 extern void sfxge_port_stop(struct sfxge_softc *sc);
398 extern void sfxge_mac_link_update(struct sfxge_softc *sc,
399 efx_link_mode_t mode);
400 extern int sfxge_mac_filter_set(struct sfxge_softc *sc);
401 extern int sfxge_port_ifmedia_init(struct sfxge_softc *sc);
402 extern uint64_t sfxge_get_counter(struct ifnet *ifp, ift_counter c);
404 #define SFXGE_MAX_MTU (9 * 1024)
406 #define SFXGE_ADAPTER_LOCK_INIT(_sc, _ifname) \
408 struct sfxge_softc *__sc = (_sc); \
410 snprintf((__sc)->softc_lock_name, \
411 sizeof((__sc)->softc_lock_name), \
412 "%s:softc", (_ifname)); \
413 sx_init(&(__sc)->softc_lock, (__sc)->softc_lock_name); \
415 #define SFXGE_ADAPTER_LOCK_DESTROY(_sc) \
416 sx_destroy(&(_sc)->softc_lock)
417 #define SFXGE_ADAPTER_LOCK(_sc) \
418 sx_xlock(&(_sc)->softc_lock)
419 #define SFXGE_ADAPTER_UNLOCK(_sc) \
420 sx_xunlock(&(_sc)->softc_lock)
421 #define SFXGE_ADAPTER_LOCK_ASSERT_OWNED(_sc) \
422 sx_assert(&(_sc)->softc_lock, LA_XLOCKED)
424 #define SFXGE_PORT_LOCK_INIT(_port, _ifname) \
426 struct sfxge_port *__port = (_port); \
428 snprintf((__port)->lock_name, \
429 sizeof((__port)->lock_name), \
430 "%s:port", (_ifname)); \
431 mtx_init(&(__port)->lock, (__port)->lock_name, \
434 #define SFXGE_PORT_LOCK_DESTROY(_port) \
435 mtx_destroy(&(_port)->lock)
436 #define SFXGE_PORT_LOCK(_port) \
437 mtx_lock(&(_port)->lock)
438 #define SFXGE_PORT_UNLOCK(_port) \
439 mtx_unlock(&(_port)->lock)
440 #define SFXGE_PORT_LOCK_ASSERT_OWNED(_port) \
441 mtx_assert(&(_port)->lock, MA_OWNED)
443 #define SFXGE_MCDI_LOCK_INIT(_mcdi, _ifname) \
445 struct sfxge_mcdi *__mcdi = (_mcdi); \
447 snprintf((__mcdi)->lock_name, \
448 sizeof((__mcdi)->lock_name), \
449 "%s:mcdi", (_ifname)); \
450 mtx_init(&(__mcdi)->lock, (__mcdi)->lock_name, \
453 #define SFXGE_MCDI_LOCK_DESTROY(_mcdi) \
454 mtx_destroy(&(_mcdi)->lock)
455 #define SFXGE_MCDI_LOCK(_mcdi) \
456 mtx_lock(&(_mcdi)->lock)
457 #define SFXGE_MCDI_UNLOCK(_mcdi) \
458 mtx_unlock(&(_mcdi)->lock)
459 #define SFXGE_MCDI_LOCK_ASSERT_OWNED(_mcdi) \
460 mtx_assert(&(_mcdi)->lock, MA_OWNED)
462 #define SFXGE_EVQ_LOCK_INIT(_evq, _ifname, _evq_index) \
464 struct sfxge_evq *__evq = (_evq); \
466 snprintf((__evq)->lock_name, \
467 sizeof((__evq)->lock_name), \
468 "%s:evq%u", (_ifname), (_evq_index)); \
469 mtx_init(&(__evq)->lock, (__evq)->lock_name, \
472 #define SFXGE_EVQ_LOCK_DESTROY(_evq) \
473 mtx_destroy(&(_evq)->lock)
474 #define SFXGE_EVQ_LOCK(_evq) \
475 mtx_lock(&(_evq)->lock)
476 #define SFXGE_EVQ_UNLOCK(_evq) \
477 mtx_unlock(&(_evq)->lock)
478 #define SFXGE_EVQ_LOCK_ASSERT_OWNED(_evq) \
479 mtx_assert(&(_evq)->lock, MA_OWNED)
481 #endif /* _SFXGE_H */