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 #ifdef IFM_ETH_RXPAUSE
97 #define SFXGE_HAVE_PAUSE_MEDIAOPTS
101 #define CTLTYPE_U64 CTLTYPE_QUAD
104 #include "sfxge_rx.h"
105 #include "sfxge_tx.h"
107 #define ROUNDUP_POW_OF_TWO(_n) (1ULL << flsl((_n) - 1))
109 #define SFXGE_IP_ALIGN 2
111 #define SFXGE_ETHERTYPE_LOOPBACK 0x9000 /* Xerox loopback */
113 #define SFXGE_MAGIC_RESERVED 0x8000
115 #define SFXGE_MAGIC_DMAQ_LABEL_WIDTH 6
116 #define SFXGE_MAGIC_DMAQ_LABEL_MASK \
117 ((1 << SFXGE_MAGIC_DMAQ_LABEL_WIDTH) - 1)
120 SFXGE_SW_EV_RX_QFLUSH_DONE = 1,
121 SFXGE_SW_EV_RX_QFLUSH_FAILED,
122 SFXGE_SW_EV_RX_QREFILL,
123 SFXGE_SW_EV_TX_QFLUSH_DONE,
126 #define SFXGE_SW_EV_MAGIC(_sw_ev) \
127 (SFXGE_MAGIC_RESERVED | ((_sw_ev) << SFXGE_MAGIC_DMAQ_LABEL_WIDTH))
129 static inline uint16_t
130 sfxge_sw_ev_mk_magic(enum sfxge_sw_ev sw_ev, unsigned int label)
132 KASSERT((label & SFXGE_MAGIC_DMAQ_LABEL_MASK) == label,
133 ("(label & SFXGE_MAGIC_DMAQ_LABEL_MASK) != label"));
134 return SFXGE_SW_EV_MAGIC(sw_ev) | label;
137 static inline uint16_t
138 sfxge_sw_ev_rxq_magic(enum sfxge_sw_ev sw_ev, struct sfxge_rxq *rxq)
140 return sfxge_sw_ev_mk_magic(sw_ev, 0);
143 static inline uint16_t
144 sfxge_sw_ev_txq_magic(enum sfxge_sw_ev sw_ev, struct sfxge_txq *txq)
146 return sfxge_sw_ev_mk_magic(sw_ev, txq->type);
149 enum sfxge_evq_state {
150 SFXGE_EVQ_UNINITIALIZED = 0,
151 SFXGE_EVQ_INITIALIZED,
156 #define SFXGE_EV_BATCH 16384
158 #define SFXGE_STATS_UPDATE_PERIOD_MS 1000
161 /* Structure members below are sorted by usage order */
162 struct sfxge_softc *sc;
165 enum sfxge_evq_state init_state;
168 unsigned int read_ptr;
170 unsigned int rx_done;
171 unsigned int tx_done;
173 /* Linked list of TX queues with completions to process */
174 struct sfxge_txq *txq;
175 struct sfxge_txq **txqs;
177 /* Structure members not used on event processing path */
178 unsigned int buf_base_id;
179 unsigned int entries;
180 char lock_name[SFXGE_LOCK_NAME_MAX];
182 clock_t stats_update_time;
183 uint64_t stats[EV_NQSTATS];
185 } __aligned(CACHE_LINE_SIZE);
187 #define SFXGE_NDESCS 1024
188 #define SFXGE_MODERATION 30
190 enum sfxge_intr_state {
191 SFXGE_INTR_UNINITIALIZED = 0,
192 SFXGE_INTR_INITIALIZED,
197 struct sfxge_intr_hdl {
200 struct resource *eih_res;
204 enum sfxge_intr_state state;
205 struct resource *msix_res;
206 struct sfxge_intr_hdl *table;
213 enum sfxge_mcdi_state {
214 SFXGE_MCDI_UNINITIALIZED = 0,
215 SFXGE_MCDI_INITIALIZED,
223 enum sfxge_mcdi_state state;
224 efx_mcdi_transport_t transport;
226 /* Only used in debugging output */
227 char lock_name[SFXGE_LOCK_NAME_MAX];
230 struct sfxge_hw_stats {
236 enum sfxge_port_state {
237 SFXGE_PORT_UNINITIALIZED = 0,
238 SFXGE_PORT_INITIALIZED,
243 struct sfxge_softc *sc;
245 enum sfxge_port_state init_state;
246 #ifndef SFXGE_HAVE_PAUSE_MEDIAOPTS
247 unsigned int wanted_fc;
249 struct sfxge_hw_stats phy_stats;
250 struct sfxge_hw_stats mac_stats;
251 uint16_t stats_update_period_ms;
252 efx_link_mode_t link_mode;
253 uint8_t mcast_addrs[EFX_MAC_MULTICAST_LIST_MAX *
255 unsigned int mcast_count;
257 /* Only used in debugging output */
258 char lock_name[SFXGE_LOCK_NAME_MAX];
261 enum sfxge_softc_state {
262 SFXGE_UNINITIALIZED = 0,
270 struct sx softc_lock;
271 char softc_lock_name[SFXGE_LOCK_NAME_MAX];
272 enum sfxge_softc_state init_state;
274 unsigned int if_flags;
275 struct sysctl_oid *stats_node;
277 struct sysctl_oid *evqs_stats_node;
279 struct sysctl_oid *txqs_node;
281 struct task task_reset;
284 unsigned int mem_bar;
289 efsys_lock_t enp_lock;
291 boolean_t txq_dynamic_cksum_toggle_supported;
293 unsigned int rxq_entries;
294 unsigned int txq_entries;
296 bus_dma_tag_t parent_dma_tag;
299 struct sfxge_intr intr;
300 struct sfxge_mcdi mcdi;
301 struct sfxge_port port;
302 uint32_t buffer_table_next;
304 struct sfxge_evq *evq[SFXGE_RX_SCALE_MAX];
305 unsigned int ev_moderation;
307 clock_t ev_stats_update_time;
308 uint64_t ev_stats[EV_NQSTATS];
311 unsigned int max_rss_channels;
312 struct sfxge_rxq *rxq[SFXGE_RX_SCALE_MAX];
313 unsigned int rx_indir_table[EFX_RSS_TBL_SIZE];
315 struct sfxge_txq *txq[SFXGE_TXQ_NTYPES + SFXGE_RX_SCALE_MAX];
317 struct ifmedia media;
319 size_t rx_prefix_size;
320 size_t rx_buffer_size;
321 size_t rx_buffer_align;
324 unsigned int evq_max;
325 unsigned int evq_count;
326 unsigned int rxq_count;
327 unsigned int txq_count;
329 unsigned int tso_fw_assisted;
330 #define SFXGE_FATSOV1 (1 << 0)
331 #define SFXGE_FATSOV2 (1 << 1)
333 #if EFSYS_OPT_MCDI_LOGGING
338 #define SFXGE_LINK_UP(sc) \
339 ((sc)->port.link_mode != EFX_LINK_DOWN && \
340 (sc)->port.link_mode != EFX_LINK_UNKNOWN)
341 #define SFXGE_RUNNING(sc) ((sc)->ifnet->if_drv_flags & IFF_DRV_RUNNING)
343 #define SFXGE_PARAM(_name) "hw.sfxge." #_name
345 SYSCTL_DECL(_hw_sfxge);
350 extern void sfxge_schedule_reset(struct sfxge_softc *sc);
351 extern void sfxge_sram_buf_tbl_alloc(struct sfxge_softc *sc, size_t n,
357 extern int sfxge_dma_init(struct sfxge_softc *sc);
358 extern void sfxge_dma_fini(struct sfxge_softc *sc);
359 extern int sfxge_dma_alloc(struct sfxge_softc *sc, bus_size_t len,
361 extern void sfxge_dma_free(efsys_mem_t *esmp);
362 extern int sfxge_dma_map_sg_collapse(bus_dma_tag_t tag, bus_dmamap_t map,
364 bus_dma_segment_t *segs,
365 int *nsegs, int maxsegs);
370 extern int sfxge_ev_init(struct sfxge_softc *sc);
371 extern void sfxge_ev_fini(struct sfxge_softc *sc);
372 extern int sfxge_ev_start(struct sfxge_softc *sc);
373 extern void sfxge_ev_stop(struct sfxge_softc *sc);
374 extern int sfxge_ev_qpoll(struct sfxge_evq *evq);
379 extern int sfxge_intr_init(struct sfxge_softc *sc);
380 extern void sfxge_intr_fini(struct sfxge_softc *sc);
381 extern int sfxge_intr_start(struct sfxge_softc *sc);
382 extern void sfxge_intr_stop(struct sfxge_softc *sc);
387 extern int sfxge_mcdi_init(struct sfxge_softc *sc);
388 extern void sfxge_mcdi_fini(struct sfxge_softc *sc);
389 extern int sfxge_mcdi_ioctl(struct sfxge_softc *sc, sfxge_ioc_t *ip);
392 * From sfxge_nvram.c.
394 extern int sfxge_nvram_ioctl(struct sfxge_softc *sc, sfxge_ioc_t *ip);
399 extern int sfxge_port_init(struct sfxge_softc *sc);
400 extern void sfxge_port_fini(struct sfxge_softc *sc);
401 extern int sfxge_port_start(struct sfxge_softc *sc);
402 extern void sfxge_port_stop(struct sfxge_softc *sc);
403 extern void sfxge_mac_link_update(struct sfxge_softc *sc,
404 efx_link_mode_t mode);
405 extern int sfxge_mac_filter_set(struct sfxge_softc *sc);
406 extern int sfxge_port_ifmedia_init(struct sfxge_softc *sc);
407 extern uint64_t sfxge_get_counter(struct ifnet *ifp, ift_counter c);
409 #define SFXGE_MAX_MTU (9 * 1024)
411 #define SFXGE_ADAPTER_LOCK_INIT(_sc, _ifname) \
413 struct sfxge_softc *__sc = (_sc); \
415 snprintf((__sc)->softc_lock_name, \
416 sizeof((__sc)->softc_lock_name), \
417 "%s:softc", (_ifname)); \
418 sx_init(&(__sc)->softc_lock, (__sc)->softc_lock_name); \
420 #define SFXGE_ADAPTER_LOCK_DESTROY(_sc) \
421 sx_destroy(&(_sc)->softc_lock)
422 #define SFXGE_ADAPTER_LOCK(_sc) \
423 sx_xlock(&(_sc)->softc_lock)
424 #define SFXGE_ADAPTER_UNLOCK(_sc) \
425 sx_xunlock(&(_sc)->softc_lock)
426 #define SFXGE_ADAPTER_LOCK_ASSERT_OWNED(_sc) \
427 sx_assert(&(_sc)->softc_lock, LA_XLOCKED)
429 #define SFXGE_PORT_LOCK_INIT(_port, _ifname) \
431 struct sfxge_port *__port = (_port); \
433 snprintf((__port)->lock_name, \
434 sizeof((__port)->lock_name), \
435 "%s:port", (_ifname)); \
436 mtx_init(&(__port)->lock, (__port)->lock_name, \
439 #define SFXGE_PORT_LOCK_DESTROY(_port) \
440 mtx_destroy(&(_port)->lock)
441 #define SFXGE_PORT_LOCK(_port) \
442 mtx_lock(&(_port)->lock)
443 #define SFXGE_PORT_UNLOCK(_port) \
444 mtx_unlock(&(_port)->lock)
445 #define SFXGE_PORT_LOCK_ASSERT_OWNED(_port) \
446 mtx_assert(&(_port)->lock, MA_OWNED)
448 #define SFXGE_MCDI_LOCK_INIT(_mcdi, _ifname) \
450 struct sfxge_mcdi *__mcdi = (_mcdi); \
452 snprintf((__mcdi)->lock_name, \
453 sizeof((__mcdi)->lock_name), \
454 "%s:mcdi", (_ifname)); \
455 mtx_init(&(__mcdi)->lock, (__mcdi)->lock_name, \
458 #define SFXGE_MCDI_LOCK_DESTROY(_mcdi) \
459 mtx_destroy(&(_mcdi)->lock)
460 #define SFXGE_MCDI_LOCK(_mcdi) \
461 mtx_lock(&(_mcdi)->lock)
462 #define SFXGE_MCDI_UNLOCK(_mcdi) \
463 mtx_unlock(&(_mcdi)->lock)
464 #define SFXGE_MCDI_LOCK_ASSERT_OWNED(_mcdi) \
465 mtx_assert(&(_mcdi)->lock, MA_OWNED)
467 #define SFXGE_EVQ_LOCK_INIT(_evq, _ifname, _evq_index) \
469 struct sfxge_evq *__evq = (_evq); \
471 snprintf((__evq)->lock_name, \
472 sizeof((__evq)->lock_name), \
473 "%s:evq%u", (_ifname), (_evq_index)); \
474 mtx_init(&(__evq)->lock, (__evq)->lock_name, \
477 #define SFXGE_EVQ_LOCK_DESTROY(_evq) \
478 mtx_destroy(&(_evq)->lock)
479 #define SFXGE_EVQ_LOCK(_evq) \
480 mtx_lock(&(_evq)->lock)
481 #define SFXGE_EVQ_UNLOCK(_evq) \
482 mtx_unlock(&(_evq)->lock)
483 #define SFXGE_EVQ_LOCK_ASSERT_OWNED(_evq) \
484 mtx_assert(&(_evq)->lock, MA_OWNED)
486 #endif /* _SFXGE_H */