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_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 */
116 enum sfxge_evq_state {
117 SFXGE_EVQ_UNINITIALIZED = 0,
118 SFXGE_EVQ_INITIALIZED,
123 #define SFXGE_EV_BATCH 16384
126 /* Structure members below are sorted by usage order */
127 struct sfxge_softc *sc;
130 enum sfxge_evq_state init_state;
133 unsigned int read_ptr;
135 unsigned int rx_done;
136 unsigned int tx_done;
138 /* Linked list of TX queues with completions to process */
139 struct sfxge_txq *txq;
140 struct sfxge_txq **txqs;
142 /* Structure members not used on event processing path */
143 unsigned int buf_base_id;
144 unsigned int entries;
145 char lock_name[SFXGE_LOCK_NAME_MAX];
146 } __aligned(CACHE_LINE_SIZE);
148 #define SFXGE_NDESCS 1024
149 #define SFXGE_MODERATION 30
151 enum sfxge_intr_state {
152 SFXGE_INTR_UNINITIALIZED = 0,
153 SFXGE_INTR_INITIALIZED,
158 struct sfxge_intr_hdl {
161 struct resource *eih_res;
165 enum sfxge_intr_state state;
166 struct resource *msix_res;
167 struct sfxge_intr_hdl *table;
174 enum sfxge_mcdi_state {
175 SFXGE_MCDI_UNINITIALIZED = 0,
176 SFXGE_MCDI_INITIALIZED,
184 enum sfxge_mcdi_state state;
185 efx_mcdi_transport_t transport;
187 /* Only used in debugging output */
188 char lock_name[SFXGE_LOCK_NAME_MAX];
191 struct sfxge_hw_stats {
197 enum sfxge_port_state {
198 SFXGE_PORT_UNINITIALIZED = 0,
199 SFXGE_PORT_INITIALIZED,
204 struct sfxge_softc *sc;
206 enum sfxge_port_state init_state;
207 #ifndef SFXGE_HAVE_PAUSE_MEDIAOPTS
208 unsigned int wanted_fc;
210 struct sfxge_hw_stats phy_stats;
211 struct sfxge_hw_stats mac_stats;
212 efx_link_mode_t link_mode;
213 uint8_t mcast_addrs[EFX_MAC_MULTICAST_LIST_MAX *
215 unsigned int mcast_count;
217 /* Only used in debugging output */
218 char lock_name[SFXGE_LOCK_NAME_MAX];
221 enum sfxge_softc_state {
222 SFXGE_UNINITIALIZED = 0,
230 struct sx softc_lock;
231 char softc_lock_name[SFXGE_LOCK_NAME_MAX];
232 enum sfxge_softc_state init_state;
234 unsigned int if_flags;
235 struct sysctl_oid *stats_node;
236 struct sysctl_oid *txqs_node;
238 struct task task_reset;
244 efsys_lock_t enp_lock;
246 unsigned int rxq_entries;
247 unsigned int txq_entries;
249 bus_dma_tag_t parent_dma_tag;
252 struct sfxge_intr intr;
253 struct sfxge_mcdi mcdi;
254 struct sfxge_port port;
255 uint32_t buffer_table_next;
257 struct sfxge_evq *evq[SFXGE_RX_SCALE_MAX];
258 unsigned int ev_moderation;
260 clock_t ev_stats_update_time;
261 uint64_t ev_stats[EV_NQSTATS];
264 unsigned int max_rss_channels;
265 uma_zone_t rxq_cache;
266 struct sfxge_rxq *rxq[SFXGE_RX_SCALE_MAX];
267 unsigned int rx_indir_table[SFXGE_RX_SCALE_MAX];
269 struct sfxge_txq *txq[SFXGE_TXQ_NTYPES + SFXGE_RX_SCALE_MAX];
271 struct ifmedia media;
273 size_t rx_prefix_size;
274 size_t rx_buffer_size;
275 size_t rx_buffer_align;
276 uma_zone_t rx_buffer_zone;
278 unsigned int evq_max;
279 unsigned int evq_count;
280 unsigned int rxq_count;
281 unsigned int txq_count;
286 #define SFXGE_LINK_UP(sc) ((sc)->port.link_mode != EFX_LINK_DOWN)
287 #define SFXGE_RUNNING(sc) ((sc)->ifnet->if_drv_flags & IFF_DRV_RUNNING)
289 #define SFXGE_PARAM(_name) "hw.sfxge." #_name
291 SYSCTL_DECL(_hw_sfxge);
296 extern void sfxge_schedule_reset(struct sfxge_softc *sc);
297 extern void sfxge_sram_buf_tbl_alloc(struct sfxge_softc *sc, size_t n,
303 extern int sfxge_dma_init(struct sfxge_softc *sc);
304 extern void sfxge_dma_fini(struct sfxge_softc *sc);
305 extern int sfxge_dma_alloc(struct sfxge_softc *sc, bus_size_t len,
307 extern void sfxge_dma_free(efsys_mem_t *esmp);
308 extern int sfxge_dma_map_sg_collapse(bus_dma_tag_t tag, bus_dmamap_t map,
310 bus_dma_segment_t *segs,
311 int *nsegs, int maxsegs);
316 extern int sfxge_ev_init(struct sfxge_softc *sc);
317 extern void sfxge_ev_fini(struct sfxge_softc *sc);
318 extern int sfxge_ev_start(struct sfxge_softc *sc);
319 extern void sfxge_ev_stop(struct sfxge_softc *sc);
320 extern int sfxge_ev_qpoll(struct sfxge_evq *evq);
325 extern int sfxge_intr_init(struct sfxge_softc *sc);
326 extern void sfxge_intr_fini(struct sfxge_softc *sc);
327 extern int sfxge_intr_start(struct sfxge_softc *sc);
328 extern void sfxge_intr_stop(struct sfxge_softc *sc);
333 extern int sfxge_mcdi_init(struct sfxge_softc *sc);
334 extern void sfxge_mcdi_fini(struct sfxge_softc *sc);
335 extern int sfxge_mcdi_ioctl(struct sfxge_softc *sc, sfxge_ioc_t *ip);
338 * From sfxge_nvram.c.
340 extern int sfxge_nvram_ioctl(struct sfxge_softc *sc, sfxge_ioc_t *ip);
345 extern int sfxge_port_init(struct sfxge_softc *sc);
346 extern void sfxge_port_fini(struct sfxge_softc *sc);
347 extern int sfxge_port_start(struct sfxge_softc *sc);
348 extern void sfxge_port_stop(struct sfxge_softc *sc);
349 extern void sfxge_mac_link_update(struct sfxge_softc *sc,
350 efx_link_mode_t mode);
351 extern int sfxge_mac_filter_set(struct sfxge_softc *sc);
352 extern int sfxge_port_ifmedia_init(struct sfxge_softc *sc);
353 extern uint64_t sfxge_get_counter(struct ifnet *ifp, ift_counter c);
355 #define SFXGE_MAX_MTU (9 * 1024)
357 #define SFXGE_ADAPTER_LOCK_INIT(_sc, _ifname) \
359 struct sfxge_softc *__sc = (_sc); \
361 snprintf((__sc)->softc_lock_name, \
362 sizeof((__sc)->softc_lock_name), \
363 "%s:softc", (_ifname)); \
364 sx_init(&(__sc)->softc_lock, (__sc)->softc_lock_name); \
366 #define SFXGE_ADAPTER_LOCK_DESTROY(_sc) \
367 sx_destroy(&(_sc)->softc_lock)
368 #define SFXGE_ADAPTER_LOCK(_sc) \
369 sx_xlock(&(_sc)->softc_lock)
370 #define SFXGE_ADAPTER_UNLOCK(_sc) \
371 sx_xunlock(&(_sc)->softc_lock)
372 #define SFXGE_ADAPTER_LOCK_ASSERT_OWNED(_sc) \
373 sx_assert(&(_sc)->softc_lock, LA_XLOCKED)
375 #define SFXGE_PORT_LOCK_INIT(_port, _ifname) \
377 struct sfxge_port *__port = (_port); \
379 snprintf((__port)->lock_name, \
380 sizeof((__port)->lock_name), \
381 "%s:port", (_ifname)); \
382 mtx_init(&(__port)->lock, (__port)->lock_name, \
385 #define SFXGE_PORT_LOCK_DESTROY(_port) \
386 mtx_destroy(&(_port)->lock)
387 #define SFXGE_PORT_LOCK(_port) \
388 mtx_lock(&(_port)->lock)
389 #define SFXGE_PORT_UNLOCK(_port) \
390 mtx_unlock(&(_port)->lock)
391 #define SFXGE_PORT_LOCK_ASSERT_OWNED(_port) \
392 mtx_assert(&(_port)->lock, MA_OWNED)
394 #define SFXGE_MCDI_LOCK_INIT(_mcdi, _ifname) \
396 struct sfxge_mcdi *__mcdi = (_mcdi); \
398 snprintf((__mcdi)->lock_name, \
399 sizeof((__mcdi)->lock_name), \
400 "%s:mcdi", (_ifname)); \
401 mtx_init(&(__mcdi)->lock, (__mcdi)->lock_name, \
404 #define SFXGE_MCDI_LOCK_DESTROY(_mcdi) \
405 mtx_destroy(&(_mcdi)->lock)
406 #define SFXGE_MCDI_LOCK(_mcdi) \
407 mtx_lock(&(_mcdi)->lock)
408 #define SFXGE_MCDI_UNLOCK(_mcdi) \
409 mtx_unlock(&(_mcdi)->lock)
410 #define SFXGE_MCDI_LOCK_ASSERT_OWNED(_mcdi) \
411 mtx_assert(&(_mcdi)->lock, MA_OWNED)
413 #define SFXGE_EVQ_LOCK_INIT(_evq, _ifname, _evq_index) \
415 struct sfxge_evq *__evq = (_evq); \
417 snprintf((__evq)->lock_name, \
418 sizeof((__evq)->lock_name), \
419 "%s:evq%u", (_ifname), (_evq_index)); \
420 mtx_init(&(__evq)->lock, (__evq)->lock_name, \
423 #define SFXGE_EVQ_LOCK_DESTROY(_evq) \
424 mtx_destroy(&(_evq)->lock)
425 #define SFXGE_EVQ_LOCK(_evq) \
426 mtx_lock(&(_evq)->lock)
427 #define SFXGE_EVQ_UNLOCK(_evq) \
428 mtx_unlock(&(_evq)->lock)
429 #define SFXGE_EVQ_LOCK_ASSERT_OWNED(_evq) \
430 mtx_assert(&(_evq)->lock, MA_OWNED)
432 #endif /* _SFXGE_H */