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.
34 #include <sys/cdefs.h>
35 __FBSDID("$FreeBSD$");
39 #include <sys/param.h>
40 #include <sys/kernel.h>
44 #include <sys/module.h>
45 #include <sys/mutex.h>
47 #include <sys/socket.h>
48 #include <sys/taskqueue.h>
49 #include <sys/sockio.h>
50 #include <sys/sysctl.h>
52 #include <sys/syslog.h>
54 #include <dev/pci/pcireg.h>
55 #include <dev/pci/pcivar.h>
57 #include <net/ethernet.h>
59 #include <net/if_var.h>
60 #include <net/if_media.h>
61 #include <net/if_types.h>
64 #include <net/rss_config.h>
67 #include "common/efx.h"
71 #include "sfxge_ioc.h"
72 #include "sfxge_version.h"
74 #define SFXGE_CAP (IFCAP_VLAN_MTU | IFCAP_VLAN_HWCSUM | \
75 IFCAP_RXCSUM | IFCAP_TXCSUM | \
76 IFCAP_RXCSUM_IPV6 | IFCAP_TXCSUM_IPV6 | \
77 IFCAP_TSO4 | IFCAP_TSO6 | \
79 IFCAP_VLAN_HWTSO | IFCAP_LINKSTATE | IFCAP_HWSTATS)
80 #define SFXGE_CAP_ENABLE SFXGE_CAP
81 #define SFXGE_CAP_FIXED (IFCAP_VLAN_MTU | \
82 IFCAP_JUMBO_MTU | IFCAP_LINKSTATE | IFCAP_HWSTATS)
84 MALLOC_DEFINE(M_SFXGE, "sfxge", "Solarflare 10GigE driver");
87 SYSCTL_NODE(_hw, OID_AUTO, sfxge, CTLFLAG_RD, 0,
88 "SFXGE driver parameters");
90 #define SFXGE_PARAM_RX_RING SFXGE_PARAM(rx_ring)
91 static int sfxge_rx_ring_entries = SFXGE_NDESCS;
92 TUNABLE_INT(SFXGE_PARAM_RX_RING, &sfxge_rx_ring_entries);
93 SYSCTL_INT(_hw_sfxge, OID_AUTO, rx_ring, CTLFLAG_RDTUN,
94 &sfxge_rx_ring_entries, 0,
95 "Maximum number of descriptors in a receive ring");
97 #define SFXGE_PARAM_TX_RING SFXGE_PARAM(tx_ring)
98 static int sfxge_tx_ring_entries = SFXGE_NDESCS;
99 TUNABLE_INT(SFXGE_PARAM_TX_RING, &sfxge_tx_ring_entries);
100 SYSCTL_INT(_hw_sfxge, OID_AUTO, tx_ring, CTLFLAG_RDTUN,
101 &sfxge_tx_ring_entries, 0,
102 "Maximum number of descriptors in a transmit ring");
104 #define SFXGE_PARAM_RESTART_ATTEMPTS SFXGE_PARAM(restart_attempts)
105 static int sfxge_restart_attempts = 3;
106 TUNABLE_INT(SFXGE_PARAM_RESTART_ATTEMPTS, &sfxge_restart_attempts);
107 SYSCTL_INT(_hw_sfxge, OID_AUTO, restart_attempts, CTLFLAG_RDTUN,
108 &sfxge_restart_attempts, 0,
109 "Maximum number of attempts to bring interface up after reset");
111 #if EFSYS_OPT_MCDI_LOGGING
112 #define SFXGE_PARAM_MCDI_LOGGING SFXGE_PARAM(mcdi_logging)
113 static int sfxge_mcdi_logging = 0;
114 TUNABLE_INT(SFXGE_PARAM_MCDI_LOGGING, &sfxge_mcdi_logging);
118 sfxge_reset(void *arg, int npending);
121 sfxge_estimate_rsrc_limits(struct sfxge_softc *sc)
123 efx_drv_limits_t limits;
125 unsigned int evq_max;
126 uint32_t evq_allocated;
127 uint32_t rxq_allocated;
128 uint32_t txq_allocated;
131 * Limit the number of event queues to:
133 * - hardwire maximum RSS channels
134 * - administratively specified maximum RSS channels
138 * Avoid extra limitations so that the number of queues
139 * may be configured at administrator's will
141 evq_max = MIN(MAX(rss_getnumbuckets(), 1), EFX_MAXRSS);
143 evq_max = MIN(mp_ncpus, EFX_MAXRSS);
145 if (sc->max_rss_channels > 0)
146 evq_max = MIN(evq_max, sc->max_rss_channels);
148 memset(&limits, 0, sizeof(limits));
150 limits.edl_min_evq_count = 1;
151 limits.edl_max_evq_count = evq_max;
152 limits.edl_min_txq_count = SFXGE_TXQ_NTYPES;
153 limits.edl_max_txq_count = evq_max + SFXGE_TXQ_NTYPES - 1;
154 limits.edl_min_rxq_count = 1;
155 limits.edl_max_rxq_count = evq_max;
157 efx_nic_set_drv_limits(sc->enp, &limits);
159 if ((rc = efx_nic_init(sc->enp)) != 0)
162 rc = efx_nic_get_vi_pool(sc->enp, &evq_allocated, &rxq_allocated,
165 efx_nic_fini(sc->enp);
169 KASSERT(txq_allocated >= SFXGE_TXQ_NTYPES,
170 ("txq_allocated < SFXGE_TXQ_NTYPES"));
172 sc->evq_max = MIN(evq_allocated, evq_max);
173 sc->evq_max = MIN(rxq_allocated, sc->evq_max);
174 sc->evq_max = MIN(txq_allocated - (SFXGE_TXQ_NTYPES - 1),
177 KASSERT(sc->evq_max <= evq_max,
178 ("allocated more than maximum requested"));
181 if (sc->evq_max < rss_getnumbuckets())
182 device_printf(sc->dev, "The number of allocated queues (%u) "
183 "is less than the number of RSS buckets (%u); "
184 "performance degradation might be observed",
185 sc->evq_max, rss_getnumbuckets());
189 * NIC is kept initialized in the case of success to be able to
190 * initialize port to find out media types.
196 sfxge_set_drv_limits(struct sfxge_softc *sc)
198 efx_drv_limits_t limits;
200 memset(&limits, 0, sizeof(limits));
202 /* Limits are strict since take into account initial estimation */
203 limits.edl_min_evq_count = limits.edl_max_evq_count =
205 limits.edl_min_txq_count = limits.edl_max_txq_count =
206 sc->intr.n_alloc + SFXGE_TXQ_NTYPES - 1;
207 limits.edl_min_rxq_count = limits.edl_max_rxq_count =
210 return (efx_nic_set_drv_limits(sc->enp, &limits));
214 sfxge_start(struct sfxge_softc *sc)
218 SFXGE_ADAPTER_LOCK_ASSERT_OWNED(sc);
220 if (sc->init_state == SFXGE_STARTED)
223 if (sc->init_state != SFXGE_REGISTERED) {
228 /* Set required resource limits */
229 if ((rc = sfxge_set_drv_limits(sc)) != 0)
232 if ((rc = efx_nic_init(sc->enp)) != 0)
235 /* Start processing interrupts. */
236 if ((rc = sfxge_intr_start(sc)) != 0)
239 /* Start processing events. */
240 if ((rc = sfxge_ev_start(sc)) != 0)
243 /* Fire up the port. */
244 if ((rc = sfxge_port_start(sc)) != 0)
247 /* Start the receiver side. */
248 if ((rc = sfxge_rx_start(sc)) != 0)
251 /* Start the transmitter side. */
252 if ((rc = sfxge_tx_start(sc)) != 0)
255 sc->init_state = SFXGE_STARTED;
257 /* Tell the stack we're running. */
258 sc->ifnet->if_drv_flags |= IFF_DRV_RUNNING;
259 sc->ifnet->if_drv_flags &= ~IFF_DRV_OACTIVE;
276 efx_nic_fini(sc->enp);
279 device_printf(sc->dev, "sfxge_start: %d\n", rc);
285 sfxge_if_init(void *arg)
287 struct sfxge_softc *sc;
289 sc = (struct sfxge_softc *)arg;
291 SFXGE_ADAPTER_LOCK(sc);
292 (void)sfxge_start(sc);
293 SFXGE_ADAPTER_UNLOCK(sc);
297 sfxge_stop(struct sfxge_softc *sc)
299 SFXGE_ADAPTER_LOCK_ASSERT_OWNED(sc);
301 if (sc->init_state != SFXGE_STARTED)
304 sc->init_state = SFXGE_REGISTERED;
306 /* Stop the transmitter. */
309 /* Stop the receiver. */
315 /* Stop processing events. */
318 /* Stop processing interrupts. */
321 efx_nic_fini(sc->enp);
323 sc->ifnet->if_drv_flags &= ~IFF_DRV_RUNNING;
328 sfxge_vpd_ioctl(struct sfxge_softc *sc, sfxge_ioc_t *ioc)
330 efx_vpd_value_t value;
333 switch (ioc->u.vpd.op) {
334 case SFXGE_VPD_OP_GET_KEYWORD:
335 value.evv_tag = ioc->u.vpd.tag;
336 value.evv_keyword = ioc->u.vpd.keyword;
337 rc = efx_vpd_get(sc->enp, sc->vpd_data, sc->vpd_size, &value);
340 ioc->u.vpd.len = MIN(ioc->u.vpd.len, value.evv_length);
341 if (ioc->u.vpd.payload != 0) {
342 rc = copyout(value.evv_value, ioc->u.vpd.payload,
346 case SFXGE_VPD_OP_SET_KEYWORD:
347 if (ioc->u.vpd.len > sizeof(value.evv_value))
349 value.evv_tag = ioc->u.vpd.tag;
350 value.evv_keyword = ioc->u.vpd.keyword;
351 value.evv_length = ioc->u.vpd.len;
352 rc = copyin(ioc->u.vpd.payload, value.evv_value, value.evv_length);
355 rc = efx_vpd_set(sc->enp, sc->vpd_data, sc->vpd_size, &value);
358 rc = efx_vpd_verify(sc->enp, sc->vpd_data, sc->vpd_size);
361 rc = efx_vpd_write(sc->enp, sc->vpd_data, sc->vpd_size);
372 sfxge_private_ioctl(struct sfxge_softc *sc, sfxge_ioc_t *ioc)
376 return (sfxge_mcdi_ioctl(sc, ioc));
377 case SFXGE_NVRAM_IOC:
378 return (sfxge_nvram_ioctl(sc, ioc));
380 return (sfxge_vpd_ioctl(sc, ioc));
388 sfxge_if_ioctl(struct ifnet *ifp, unsigned long command, caddr_t data)
390 struct sfxge_softc *sc;
395 ifr = (struct ifreq *)data;
401 SFXGE_ADAPTER_LOCK(sc);
402 if (ifp->if_flags & IFF_UP) {
403 if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
404 if ((ifp->if_flags ^ sc->if_flags) &
405 (IFF_PROMISC | IFF_ALLMULTI)) {
406 sfxge_mac_filter_set(sc);
411 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
413 sc->if_flags = ifp->if_flags;
414 SFXGE_ADAPTER_UNLOCK(sc);
417 if (ifr->ifr_mtu == ifp->if_mtu) {
420 } else if (ifr->ifr_mtu > SFXGE_MAX_MTU) {
422 } else if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
423 ifp->if_mtu = ifr->ifr_mtu;
426 /* Restart required */
427 SFXGE_ADAPTER_LOCK(sc);
429 ifp->if_mtu = ifr->ifr_mtu;
430 error = sfxge_start(sc);
431 SFXGE_ADAPTER_UNLOCK(sc);
433 ifp->if_flags &= ~IFF_UP;
434 ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
441 if (ifp->if_drv_flags & IFF_DRV_RUNNING)
442 sfxge_mac_filter_set(sc);
446 int reqcap = ifr->ifr_reqcap;
449 SFXGE_ADAPTER_LOCK(sc);
451 /* Capabilities to be changed in accordance with request */
452 capchg_mask = ifp->if_capenable ^ reqcap;
455 * The networking core already rejects attempts to
456 * enable capabilities we don't have. We still have
457 * to reject attempts to disable capabilities that we
458 * can't (yet) disable.
460 KASSERT((reqcap & ~ifp->if_capabilities) == 0,
461 ("Unsupported capabilities 0x%x requested 0x%x vs "
463 reqcap & ~ifp->if_capabilities,
464 reqcap , ifp->if_capabilities));
465 if (capchg_mask & SFXGE_CAP_FIXED) {
467 SFXGE_ADAPTER_UNLOCK(sc);
471 /* Check request before any changes */
472 if ((capchg_mask & IFCAP_TSO4) &&
473 (reqcap & (IFCAP_TSO4 | IFCAP_TXCSUM)) == IFCAP_TSO4) {
475 SFXGE_ADAPTER_UNLOCK(sc);
476 if_printf(ifp, "enable txcsum before tso4\n");
479 if ((capchg_mask & IFCAP_TSO6) &&
480 (reqcap & (IFCAP_TSO6 | IFCAP_TXCSUM_IPV6)) == IFCAP_TSO6) {
482 SFXGE_ADAPTER_UNLOCK(sc);
483 if_printf(ifp, "enable txcsum6 before tso6\n");
487 if (reqcap & IFCAP_TXCSUM) {
488 ifp->if_hwassist |= (CSUM_IP | CSUM_TCP | CSUM_UDP);
490 ifp->if_hwassist &= ~(CSUM_IP | CSUM_TCP | CSUM_UDP);
491 if (reqcap & IFCAP_TSO4) {
492 reqcap &= ~IFCAP_TSO4;
494 "tso4 disabled due to -txcsum\n");
497 if (reqcap & IFCAP_TXCSUM_IPV6) {
498 ifp->if_hwassist |= (CSUM_TCP_IPV6 | CSUM_UDP_IPV6);
500 ifp->if_hwassist &= ~(CSUM_TCP_IPV6 | CSUM_UDP_IPV6);
501 if (reqcap & IFCAP_TSO6) {
502 reqcap &= ~IFCAP_TSO6;
504 "tso6 disabled due to -txcsum6\n");
509 * The kernel takes both IFCAP_TSOx and CSUM_TSO into
510 * account before using TSO. So, we do not touch
511 * checksum flags when IFCAP_TSOx is modified.
512 * Note that CSUM_TSO is (CSUM_IP_TSO|CSUM_IP6_TSO),
513 * but both bits are set in IPv4 and IPv6 mbufs.
516 ifp->if_capenable = reqcap;
518 SFXGE_ADAPTER_UNLOCK(sc);
523 error = ifmedia_ioctl(ifp, ifr, &sc->media, command);
530 error = copyin(ifr->ifr_data, &i2c, sizeof(i2c));
534 if (i2c.len > sizeof(i2c.data)) {
539 SFXGE_ADAPTER_LOCK(sc);
540 error = efx_phy_module_get_info(sc->enp, i2c.dev_addr,
543 SFXGE_ADAPTER_UNLOCK(sc);
545 error = copyout(&i2c, ifr->ifr_data, sizeof(i2c));
550 error = priv_check(curthread, PRIV_DRIVER);
553 error = copyin(ifr->ifr_data, &ioc, sizeof(ioc));
556 error = sfxge_private_ioctl(sc, &ioc);
558 error = copyout(&ioc, ifr->ifr_data, sizeof(ioc));
562 error = ether_ioctl(ifp, command, data);
569 sfxge_ifnet_fini(struct ifnet *ifp)
571 struct sfxge_softc *sc = ifp->if_softc;
573 SFXGE_ADAPTER_LOCK(sc);
575 SFXGE_ADAPTER_UNLOCK(sc);
577 ifmedia_removeall(&sc->media);
583 sfxge_ifnet_init(struct ifnet *ifp, struct sfxge_softc *sc)
585 const efx_nic_cfg_t *encp = efx_nic_cfg_get(sc->enp);
592 if_initname(ifp, device_get_name(dev), device_get_unit(dev));
593 ifp->if_init = sfxge_if_init;
595 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;
596 ifp->if_ioctl = sfxge_if_ioctl;
598 ifp->if_capabilities = SFXGE_CAP;
599 ifp->if_capenable = SFXGE_CAP_ENABLE;
600 ifp->if_hw_tsomax = SFXGE_TSO_MAX_SIZE;
601 ifp->if_hw_tsomaxsegcount = SFXGE_TX_MAPPING_MAX_SEG;
602 ifp->if_hw_tsomaxsegsize = PAGE_SIZE;
605 ifp->if_capabilities |= IFCAP_LRO;
606 ifp->if_capenable |= IFCAP_LRO;
609 if (encp->enc_hw_tx_insert_vlan_enabled) {
610 ifp->if_capabilities |= IFCAP_VLAN_HWTAGGING;
611 ifp->if_capenable |= IFCAP_VLAN_HWTAGGING;
613 ifp->if_hwassist = CSUM_TCP | CSUM_UDP | CSUM_IP | CSUM_TSO |
614 CSUM_TCP_IPV6 | CSUM_UDP_IPV6;
616 ether_ifattach(ifp, encp->enc_mac_addr);
618 ifp->if_transmit = sfxge_if_transmit;
619 ifp->if_qflush = sfxge_if_qflush;
621 ifp->if_get_counter = sfxge_get_counter;
623 DBGPRINT(sc->dev, "ifmedia_init");
624 if ((rc = sfxge_port_ifmedia_init(sc)) != 0)
630 ether_ifdetach(sc->ifnet);
635 sfxge_sram_buf_tbl_alloc(struct sfxge_softc *sc, size_t n, uint32_t *idp)
637 KASSERT(sc->buffer_table_next + n <=
638 efx_nic_cfg_get(sc->enp)->enc_buftbl_limit,
639 ("buffer table full"));
641 *idp = sc->buffer_table_next;
642 sc->buffer_table_next += n;
646 sfxge_bar_init(struct sfxge_softc *sc)
648 efsys_bar_t *esbp = &sc->bar;
650 esbp->esb_rid = PCIR_BAR(EFX_MEM_BAR);
651 if ((esbp->esb_res = bus_alloc_resource_any(sc->dev, SYS_RES_MEMORY,
652 &esbp->esb_rid, RF_ACTIVE)) == NULL) {
653 device_printf(sc->dev, "Cannot allocate BAR region %d\n",
657 esbp->esb_tag = rman_get_bustag(esbp->esb_res);
658 esbp->esb_handle = rman_get_bushandle(esbp->esb_res);
660 SFXGE_BAR_LOCK_INIT(esbp, device_get_nameunit(sc->dev));
666 sfxge_bar_fini(struct sfxge_softc *sc)
668 efsys_bar_t *esbp = &sc->bar;
670 bus_release_resource(sc->dev, SYS_RES_MEMORY, esbp->esb_rid,
672 SFXGE_BAR_LOCK_DESTROY(esbp);
676 sfxge_create(struct sfxge_softc *sc)
681 char rss_param_name[sizeof(SFXGE_PARAM(%d.max_rss_channels))];
682 #if EFSYS_OPT_MCDI_LOGGING
683 char mcdi_log_param_name[sizeof(SFXGE_PARAM(%d.mcdi_logging))];
688 SFXGE_ADAPTER_LOCK_INIT(sc, device_get_nameunit(sc->dev));
690 sc->max_rss_channels = 0;
691 snprintf(rss_param_name, sizeof(rss_param_name),
692 SFXGE_PARAM(%d.max_rss_channels),
693 (int)device_get_unit(dev));
694 TUNABLE_INT_FETCH(rss_param_name, &sc->max_rss_channels);
695 #if EFSYS_OPT_MCDI_LOGGING
696 sc->mcdi_logging = sfxge_mcdi_logging;
697 snprintf(mcdi_log_param_name, sizeof(mcdi_log_param_name),
698 SFXGE_PARAM(%d.mcdi_logging),
699 (int)device_get_unit(dev));
700 TUNABLE_INT_FETCH(mcdi_log_param_name, &sc->mcdi_logging);
703 sc->stats_node = SYSCTL_ADD_NODE(
704 device_get_sysctl_ctx(dev),
705 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
706 OID_AUTO, "stats", CTLFLAG_RD, NULL, "Statistics");
707 if (sc->stats_node == NULL) {
712 TASK_INIT(&sc->task_reset, 0, sfxge_reset, sc);
714 (void) pci_enable_busmaster(dev);
716 /* Initialize DMA mappings. */
717 DBGPRINT(sc->dev, "dma_init...");
718 if ((error = sfxge_dma_init(sc)) != 0)
721 /* Map the device registers. */
722 DBGPRINT(sc->dev, "bar_init...");
723 if ((error = sfxge_bar_init(sc)) != 0)
726 error = efx_family(pci_get_vendor(dev), pci_get_device(dev),
728 KASSERT(error == 0, ("Family should be filtered by sfxge_probe()"));
730 DBGPRINT(sc->dev, "nic_create...");
732 /* Create the common code nic object. */
733 SFXGE_EFSYS_LOCK_INIT(&sc->enp_lock,
734 device_get_nameunit(sc->dev), "nic");
735 if ((error = efx_nic_create(sc->family, (efsys_identifier_t *)sc,
736 &sc->bar, &sc->enp_lock, &enp)) != 0)
740 /* Initialize MCDI to talk to the microcontroller. */
741 DBGPRINT(sc->dev, "mcdi_init...");
742 if ((error = sfxge_mcdi_init(sc)) != 0)
745 /* Probe the NIC and build the configuration data area. */
746 DBGPRINT(sc->dev, "nic_probe...");
747 if ((error = efx_nic_probe(enp)) != 0)
750 if (!ISP2(sfxge_rx_ring_entries) ||
751 (sfxge_rx_ring_entries < EFX_RXQ_MINNDESCS) ||
752 (sfxge_rx_ring_entries > EFX_RXQ_MAXNDESCS)) {
753 log(LOG_ERR, "%s=%d must be power of 2 from %u to %u",
754 SFXGE_PARAM_RX_RING, sfxge_rx_ring_entries,
755 EFX_RXQ_MINNDESCS, EFX_RXQ_MAXNDESCS);
757 goto fail_rx_ring_entries;
759 sc->rxq_entries = sfxge_rx_ring_entries;
761 if (!ISP2(sfxge_tx_ring_entries) ||
762 (sfxge_tx_ring_entries < EFX_TXQ_MINNDESCS) ||
763 (sfxge_tx_ring_entries > EFX_TXQ_MAXNDESCS(efx_nic_cfg_get(enp)))) {
764 log(LOG_ERR, "%s=%d must be power of 2 from %u to %u",
765 SFXGE_PARAM_TX_RING, sfxge_tx_ring_entries,
766 EFX_TXQ_MINNDESCS, EFX_TXQ_MAXNDESCS(efx_nic_cfg_get(enp)));
768 goto fail_tx_ring_entries;
770 sc->txq_entries = sfxge_tx_ring_entries;
772 SYSCTL_ADD_STRING(device_get_sysctl_ctx(dev),
773 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
774 OID_AUTO, "version", CTLFLAG_RD,
775 SFXGE_VERSION_STRING, 0,
778 SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
779 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
780 OID_AUTO, "phy_type", CTLFLAG_RD,
781 NULL, efx_nic_cfg_get(enp)->enc_phy_type,
784 /* Initialize the NVRAM. */
785 DBGPRINT(sc->dev, "nvram_init...");
786 if ((error = efx_nvram_init(enp)) != 0)
789 /* Initialize the VPD. */
790 DBGPRINT(sc->dev, "vpd_init...");
791 if ((error = efx_vpd_init(enp)) != 0)
794 efx_mcdi_new_epoch(enp);
797 DBGPRINT(sc->dev, "nic_reset...");
798 if ((error = efx_nic_reset(enp)) != 0)
801 /* Initialize buffer table allocation. */
802 sc->buffer_table_next = 0;
805 * Guarantee minimum and estimate maximum number of event queues
806 * to take it into account when MSI-X interrupts are allocated.
807 * It initializes NIC and keeps it initialized on success.
809 if ((error = sfxge_estimate_rsrc_limits(sc)) != 0)
812 /* Set up interrupts. */
813 DBGPRINT(sc->dev, "intr_init...");
814 if ((error = sfxge_intr_init(sc)) != 0)
817 /* Initialize event processing state. */
818 DBGPRINT(sc->dev, "ev_init...");
819 if ((error = sfxge_ev_init(sc)) != 0)
822 /* Initialize port state. */
823 DBGPRINT(sc->dev, "port_init...");
824 if ((error = sfxge_port_init(sc)) != 0)
827 /* Initialize receive state. */
828 DBGPRINT(sc->dev, "rx_init...");
829 if ((error = sfxge_rx_init(sc)) != 0)
832 /* Initialize transmit state. */
833 DBGPRINT(sc->dev, "tx_init...");
834 if ((error = sfxge_tx_init(sc)) != 0)
837 sc->init_state = SFXGE_INITIALIZED;
839 DBGPRINT(sc->dev, "success");
855 efx_nic_fini(sc->enp);
864 fail_tx_ring_entries:
865 fail_rx_ring_entries:
866 efx_nic_unprobe(enp);
873 efx_nic_destroy(enp);
874 SFXGE_EFSYS_LOCK_DESTROY(&sc->enp_lock);
878 (void) pci_disable_busmaster(sc->dev);
881 DBGPRINT(sc->dev, "failed %d", error);
883 SFXGE_ADAPTER_LOCK_DESTROY(sc);
888 sfxge_destroy(struct sfxge_softc *sc)
892 /* Clean up transmit state. */
895 /* Clean up receive state. */
898 /* Clean up port state. */
901 /* Clean up event processing state. */
904 /* Clean up interrupts. */
907 /* Tear down common code subsystems. */
908 efx_nic_reset(sc->enp);
909 efx_vpd_fini(sc->enp);
910 efx_nvram_fini(sc->enp);
911 efx_nic_unprobe(sc->enp);
913 /* Tear down MCDI. */
916 /* Destroy common code context. */
919 efx_nic_destroy(enp);
921 /* Free DMA memory. */
924 /* Free mapped BARs. */
927 (void) pci_disable_busmaster(sc->dev);
929 taskqueue_drain(taskqueue_thread, &sc->task_reset);
931 /* Destroy the softc lock. */
932 SFXGE_ADAPTER_LOCK_DESTROY(sc);
936 sfxge_vpd_handler(SYSCTL_HANDLER_ARGS)
938 struct sfxge_softc *sc = arg1;
939 efx_vpd_value_t value;
942 value.evv_tag = arg2 >> 16;
943 value.evv_keyword = arg2 & 0xffff;
944 if ((rc = efx_vpd_get(sc->enp, sc->vpd_data, sc->vpd_size, &value))
948 return (SYSCTL_OUT(req, value.evv_value, value.evv_length));
952 sfxge_vpd_try_add(struct sfxge_softc *sc, struct sysctl_oid_list *list,
953 efx_vpd_tag_t tag, const char *keyword)
955 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->dev);
956 efx_vpd_value_t value;
958 /* Check whether VPD tag/keyword is present */
960 value.evv_keyword = EFX_VPD_KEYWORD(keyword[0], keyword[1]);
961 if (efx_vpd_get(sc->enp, sc->vpd_data, sc->vpd_size, &value) != 0)
965 ctx, list, OID_AUTO, keyword, CTLTYPE_STRING|CTLFLAG_RD,
966 sc, tag << 16 | EFX_VPD_KEYWORD(keyword[0], keyword[1]),
967 sfxge_vpd_handler, "A", "");
971 sfxge_vpd_init(struct sfxge_softc *sc)
973 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(sc->dev);
974 struct sysctl_oid *vpd_node;
975 struct sysctl_oid_list *vpd_list;
977 efx_vpd_value_t value;
980 if ((rc = efx_vpd_size(sc->enp, &sc->vpd_size)) != 0) {
982 * Unpriviledged functions deny VPD access.
983 * Simply skip VPD in this case.
989 sc->vpd_data = malloc(sc->vpd_size, M_SFXGE, M_WAITOK);
990 if ((rc = efx_vpd_read(sc->enp, sc->vpd_data, sc->vpd_size)) != 0)
993 /* Copy ID (product name) into device description, and log it. */
994 value.evv_tag = EFX_VPD_ID;
995 if (efx_vpd_get(sc->enp, sc->vpd_data, sc->vpd_size, &value) == 0) {
996 value.evv_value[value.evv_length] = 0;
997 device_set_desc_copy(sc->dev, value.evv_value);
998 device_printf(sc->dev, "%s\n", value.evv_value);
1001 vpd_node = SYSCTL_ADD_NODE(
1002 ctx, SYSCTL_CHILDREN(device_get_sysctl_tree(sc->dev)),
1003 OID_AUTO, "vpd", CTLFLAG_RD, NULL, "Vital Product Data");
1004 vpd_list = SYSCTL_CHILDREN(vpd_node);
1006 /* Add sysctls for all expected and any vendor-defined keywords. */
1007 sfxge_vpd_try_add(sc, vpd_list, EFX_VPD_RO, "PN");
1008 sfxge_vpd_try_add(sc, vpd_list, EFX_VPD_RO, "EC");
1009 sfxge_vpd_try_add(sc, vpd_list, EFX_VPD_RO, "SN");
1012 for (keyword[1] = '0'; keyword[1] <= '9'; keyword[1]++)
1013 sfxge_vpd_try_add(sc, vpd_list, EFX_VPD_RO, keyword);
1014 for (keyword[1] = 'A'; keyword[1] <= 'Z'; keyword[1]++)
1015 sfxge_vpd_try_add(sc, vpd_list, EFX_VPD_RO, keyword);
1021 free(sc->vpd_data, M_SFXGE);
1027 sfxge_vpd_fini(struct sfxge_softc *sc)
1029 free(sc->vpd_data, M_SFXGE);
1033 sfxge_reset(void *arg, int npending)
1035 struct sfxge_softc *sc;
1041 sc = (struct sfxge_softc *)arg;
1043 SFXGE_ADAPTER_LOCK(sc);
1045 if (sc->init_state != SFXGE_STARTED)
1049 efx_nic_reset(sc->enp);
1050 for (attempt = 0; attempt < sfxge_restart_attempts; ++attempt) {
1051 if ((rc = sfxge_start(sc)) == 0)
1054 device_printf(sc->dev, "start on reset failed (%d)\n", rc);
1058 device_printf(sc->dev, "reset failed; interface is now stopped\n");
1061 SFXGE_ADAPTER_UNLOCK(sc);
1065 sfxge_schedule_reset(struct sfxge_softc *sc)
1067 taskqueue_enqueue(taskqueue_thread, &sc->task_reset);
1071 sfxge_attach(device_t dev)
1073 struct sfxge_softc *sc;
1077 sc = device_get_softc(dev);
1080 /* Allocate ifnet. */
1081 ifp = if_alloc(IFT_ETHER);
1083 device_printf(dev, "Couldn't allocate ifnet\n");
1089 /* Initialize hardware. */
1090 DBGPRINT(sc->dev, "create nic");
1091 if ((error = sfxge_create(sc)) != 0)
1094 /* Create the ifnet for the port. */
1095 DBGPRINT(sc->dev, "init ifnet");
1096 if ((error = sfxge_ifnet_init(ifp, sc)) != 0)
1099 DBGPRINT(sc->dev, "init vpd");
1100 if ((error = sfxge_vpd_init(sc)) != 0)
1104 * NIC is initialized inside sfxge_create() and kept inialized
1105 * to be able to initialize port to discover media types in
1106 * sfxge_ifnet_init().
1108 efx_nic_fini(sc->enp);
1110 sc->init_state = SFXGE_REGISTERED;
1112 DBGPRINT(sc->dev, "success");
1116 sfxge_ifnet_fini(ifp);
1118 efx_nic_fini(sc->enp);
1125 DBGPRINT(sc->dev, "failed %d", error);
1130 sfxge_detach(device_t dev)
1132 struct sfxge_softc *sc;
1134 sc = device_get_softc(dev);
1138 /* Destroy the ifnet. */
1139 sfxge_ifnet_fini(sc->ifnet);
1141 /* Tear down hardware. */
1148 sfxge_probe(device_t dev)
1150 uint16_t pci_vendor_id;
1151 uint16_t pci_device_id;
1152 efx_family_t family;
1155 pci_vendor_id = pci_get_vendor(dev);
1156 pci_device_id = pci_get_device(dev);
1158 DBGPRINT(dev, "PCI ID %04x:%04x", pci_vendor_id, pci_device_id);
1159 rc = efx_family(pci_vendor_id, pci_device_id, &family);
1161 DBGPRINT(dev, "efx_family fail %d", rc);
1165 if (family == EFX_FAMILY_SIENA) {
1166 device_set_desc(dev, "Solarflare SFC9000 family");
1170 if (family == EFX_FAMILY_HUNTINGTON) {
1171 device_set_desc(dev, "Solarflare SFC9100 family");
1175 if (family == EFX_FAMILY_MEDFORD) {
1176 device_set_desc(dev, "Solarflare SFC9200 family");
1180 DBGPRINT(dev, "impossible controller family %d", family);
1184 static device_method_t sfxge_methods[] = {
1185 DEVMETHOD(device_probe, sfxge_probe),
1186 DEVMETHOD(device_attach, sfxge_attach),
1187 DEVMETHOD(device_detach, sfxge_detach),
1192 static devclass_t sfxge_devclass;
1194 static driver_t sfxge_driver = {
1197 sizeof(struct sfxge_softc)
1200 DRIVER_MODULE(sfxge, pci, sfxge_driver, sfxge_devclass, 0, 0);