1 /******************************************************************************
3 Copyright (c) 2001-2017, Intel Corporation
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions are met:
9 1. Redistributions of source code must retain the above copyright notice,
10 this list of conditions and the following disclaimer.
12 2. Redistributions in binary form must reproduce the above copyright
13 notice, this list of conditions and the following disclaimer in the
14 documentation and/or other materials provided with the distribution.
16 3. Neither the name of the Intel Corporation nor the names of its
17 contributors may be used to endorse or promote products derived from
18 this software without specific prior written permission.
20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 POSSIBILITY OF SUCH DAMAGE.
32 ******************************************************************************/
37 #include "opt_inet6.h"
42 #include <net/netmap.h>
43 #include <dev/netmap/netmap_kern.h>
45 /************************************************************************
47 ************************************************************************/
48 char ixv_driver_version[] = "2.0.0-k";
50 /************************************************************************
53 * Used by probe to select devices to load on
54 * Last field stores an index into ixv_strings
55 * Last entry must be all 0s
57 * { Vendor ID, Device ID, SubVendor ID, SubDevice ID, String Index }
58 ************************************************************************/
59 static pci_vendor_info_t ixv_vendor_info_array[] =
61 PVID(IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_82599_VF, "Intel(R) PRO/10GbE Virtual Function Network Driver"),
62 PVID(IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_X540_VF, "Intel(R) PRO/10GbE Virtual Function Network Driver"),
63 PVID(IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_X550_VF, "Intel(R) PRO/10GbE Virtual Function Network Driver"),
64 PVID(IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_X550EM_X_VF, "Intel(R) PRO/10GbE Virtual Function Network Driver"),
65 PVID(IXGBE_INTEL_VENDOR_ID, IXGBE_DEV_ID_X550EM_A_VF, "Intel(R) PRO/10GbE Virtual Function Network Driver"),
66 /* required last entry */
70 /************************************************************************
72 ************************************************************************/
73 static void *ixv_register(device_t dev);
74 static int ixv_if_attach_pre(if_ctx_t ctx);
75 static int ixv_if_attach_post(if_ctx_t ctx);
76 static int ixv_if_detach(if_ctx_t ctx);
78 static int ixv_if_rx_queue_intr_enable(if_ctx_t ctx, uint16_t qid);
79 static int ixv_if_tx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs, int nqs, int nqsets);
80 static int ixv_if_rx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs, int nqs, int nqsets);
81 static void ixv_if_queues_free(if_ctx_t ctx);
82 static void ixv_identify_hardware(if_ctx_t ctx);
83 static void ixv_init_device_features(struct adapter *);
84 static int ixv_allocate_pci_resources(if_ctx_t ctx);
85 static void ixv_free_pci_resources(if_ctx_t ctx);
86 static int ixv_setup_interface(if_ctx_t ctx);
87 static void ixv_if_media_status(if_ctx_t , struct ifmediareq *);
88 static int ixv_if_media_change(if_ctx_t ctx);
89 static void ixv_if_update_admin_status(if_ctx_t ctx);
90 static int ixv_if_msix_intr_assign(if_ctx_t ctx, int msix);
92 static int ixv_if_mtu_set(if_ctx_t ctx, uint32_t mtu);
93 static void ixv_if_init(if_ctx_t ctx);
94 static void ixv_if_local_timer(if_ctx_t ctx, uint16_t qid);
95 static void ixv_if_stop(if_ctx_t ctx);
96 static int ixv_negotiate_api(struct adapter *);
98 static void ixv_initialize_transmit_units(if_ctx_t ctx);
99 static void ixv_initialize_receive_units(if_ctx_t ctx);
100 static void ixv_initialize_rss_mapping(struct adapter *);
102 static void ixv_setup_vlan_support(if_ctx_t ctx);
103 static void ixv_configure_ivars(struct adapter *);
104 static void ixv_if_enable_intr(if_ctx_t ctx);
105 static void ixv_if_disable_intr(if_ctx_t ctx);
106 static void ixv_if_multi_set(if_ctx_t ctx);
108 static void ixv_if_register_vlan(if_ctx_t, u16);
109 static void ixv_if_unregister_vlan(if_ctx_t, u16);
111 static uint64_t ixv_if_get_counter(if_ctx_t, ift_counter);
113 static void ixv_save_stats(struct adapter *);
114 static void ixv_init_stats(struct adapter *);
115 static void ixv_update_stats(struct adapter *);
116 static void ixv_add_stats_sysctls(struct adapter *adapter);
118 static int ixv_sysctl_debug(SYSCTL_HANDLER_ARGS);
119 static void ixv_set_ivar(struct adapter *, u8, u8, s8);
121 static u8 *ixv_mc_array_itr(struct ixgbe_hw *, u8 **, u32 *);
123 /* The MSI-X Interrupt handlers */
124 static int ixv_msix_que(void *);
125 static int ixv_msix_mbx(void *);
127 /************************************************************************
128 * FreeBSD Device Interface Entry Points
129 ************************************************************************/
130 static device_method_t ixv_methods[] = {
131 /* Device interface */
132 DEVMETHOD(device_register, ixv_register),
133 DEVMETHOD(device_probe, iflib_device_probe),
134 DEVMETHOD(device_attach, iflib_device_attach),
135 DEVMETHOD(device_detach, iflib_device_detach),
136 DEVMETHOD(device_shutdown, iflib_device_shutdown),
140 static driver_t ixv_driver = {
141 "ixv", ixv_methods, sizeof(struct adapter),
144 devclass_t ixv_devclass;
145 DRIVER_MODULE(ixv, pci, ixv_driver, ixv_devclass, 0, 0);
146 MODULE_DEPEND(ixv, pci, 1, 1, 1);
147 MODULE_DEPEND(ixv, ether, 1, 1, 1);
149 MODULE_DEPEND(ixv, netmap, 1, 1, 1);
150 #endif /* DEV_NETMAP */
152 static device_method_t ixv_if_methods[] = {
153 DEVMETHOD(ifdi_attach_pre, ixv_if_attach_pre),
154 DEVMETHOD(ifdi_attach_post, ixv_if_attach_post),
155 DEVMETHOD(ifdi_detach, ixv_if_detach),
156 DEVMETHOD(ifdi_init, ixv_if_init),
157 DEVMETHOD(ifdi_stop, ixv_if_stop),
158 DEVMETHOD(ifdi_msix_intr_assign, ixv_if_msix_intr_assign),
159 DEVMETHOD(ifdi_intr_enable, ixv_if_enable_intr),
160 DEVMETHOD(ifdi_intr_disable, ixv_if_disable_intr),
161 DEVMETHOD(ifdi_tx_queue_intr_enable, ixv_if_rx_queue_intr_enable),
162 DEVMETHOD(ifdi_rx_queue_intr_enable, ixv_if_rx_queue_intr_enable),
163 DEVMETHOD(ifdi_tx_queues_alloc, ixv_if_tx_queues_alloc),
164 DEVMETHOD(ifdi_rx_queues_alloc, ixv_if_rx_queues_alloc),
165 DEVMETHOD(ifdi_queues_free, ixv_if_queues_free),
166 DEVMETHOD(ifdi_update_admin_status, ixv_if_update_admin_status),
167 DEVMETHOD(ifdi_multi_set, ixv_if_multi_set),
168 DEVMETHOD(ifdi_mtu_set, ixv_if_mtu_set),
169 DEVMETHOD(ifdi_media_status, ixv_if_media_status),
170 DEVMETHOD(ifdi_media_change, ixv_if_media_change),
171 DEVMETHOD(ifdi_timer, ixv_if_local_timer),
172 DEVMETHOD(ifdi_vlan_register, ixv_if_register_vlan),
173 DEVMETHOD(ifdi_vlan_unregister, ixv_if_unregister_vlan),
174 DEVMETHOD(ifdi_get_counter, ixv_if_get_counter),
178 static driver_t ixv_if_driver = {
179 "ixv_if", ixv_if_methods, sizeof(struct adapter)
183 * TUNEABLE PARAMETERS:
186 /* Flow control setting, default to full */
187 static int ixv_flow_control = ixgbe_fc_full;
188 TUNABLE_INT("hw.ixv.flow_control", &ixv_flow_control);
191 * Header split: this causes the hardware to DMA
192 * the header into a separate mbuf from the payload,
193 * it can be a performance win in some workloads, but
194 * in others it actually hurts, its off by default.
196 static int ixv_header_split = FALSE;
197 TUNABLE_INT("hw.ixv.hdr_split", &ixv_header_split);
200 * Shadow VFTA table, this is needed because
201 * the real filter table gets cleared during
202 * a soft reset and we need to repopulate it.
204 static u32 ixv_shadow_vfta[IXGBE_VFTA_SIZE];
205 extern struct if_txrx ixgbe_txrx;
207 static struct if_shared_ctx ixv_sctx_init = {
208 .isc_magic = IFLIB_MAGIC,
209 .isc_q_align = PAGE_SIZE,/* max(DBA_ALIGN, PAGE_SIZE) */
210 .isc_tx_maxsize = IXGBE_TSO_SIZE,
212 .isc_tx_maxsegsize = PAGE_SIZE,
214 .isc_rx_maxsize = MJUM16BYTES,
215 .isc_rx_nsegments = 1,
216 .isc_rx_maxsegsize = MJUM16BYTES,
220 .isc_admin_intrcnt = 1,
221 .isc_vendor_info = ixv_vendor_info_array,
222 .isc_driver_version = ixv_driver_version,
223 .isc_driver = &ixv_if_driver,
225 .isc_nrxd_min = {MIN_RXD},
226 .isc_ntxd_min = {MIN_TXD},
227 .isc_nrxd_max = {MAX_RXD},
228 .isc_ntxd_max = {MAX_TXD},
229 .isc_nrxd_default = {DEFAULT_RXD},
230 .isc_ntxd_default = {DEFAULT_TXD},
233 if_shared_ctx_t ixv_sctx = &ixv_sctx_init;
236 ixv_register(device_t dev)
241 /************************************************************************
242 * ixv_if_tx_queues_alloc
243 ************************************************************************/
245 ixv_if_tx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs,
246 int ntxqs, int ntxqsets)
248 struct adapter *adapter = iflib_get_softc(ctx);
249 if_softc_ctx_t scctx = adapter->shared;
250 struct ix_tx_queue *que;
253 MPASS(adapter->num_tx_queues == ntxqsets);
256 /* Allocate queue structure memory */
258 (struct ix_tx_queue *)malloc(sizeof(struct ix_tx_queue) * ntxqsets,
259 M_DEVBUF, M_NOWAIT | M_ZERO);
260 if (!adapter->tx_queues) {
261 device_printf(iflib_get_dev(ctx),
262 "Unable to allocate TX ring memory\n");
266 for (i = 0, que = adapter->tx_queues; i < ntxqsets; i++, que++) {
267 struct tx_ring *txr = &que->txr;
270 txr->adapter = que->adapter = adapter;
271 adapter->active_queues |= (u64)1 << txr->me;
273 /* Allocate report status array */
274 if (!(txr->tx_rsq = (qidx_t *)malloc(sizeof(qidx_t) * scctx->isc_ntxd[0], M_DEVBUF, M_NOWAIT | M_ZERO))) {
278 for (j = 0; j < scctx->isc_ntxd[0]; j++)
279 txr->tx_rsq[j] = QIDX_INVALID;
280 /* get the virtual and physical address of the hardware queues */
281 txr->tail = IXGBE_VFTDT(txr->me);
282 txr->tx_base = (union ixgbe_adv_tx_desc *)vaddrs[i*ntxqs];
283 txr->tx_paddr = paddrs[i*ntxqs];
286 txr->total_packets = 0;
290 device_printf(iflib_get_dev(ctx), "allocated for %d queues\n",
291 adapter->num_tx_queues);
296 ixv_if_queues_free(ctx);
299 } /* ixv_if_tx_queues_alloc */
301 /************************************************************************
302 * ixv_if_rx_queues_alloc
303 ************************************************************************/
305 ixv_if_rx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs,
306 int nrxqs, int nrxqsets)
308 struct adapter *adapter = iflib_get_softc(ctx);
309 struct ix_rx_queue *que;
312 MPASS(adapter->num_rx_queues == nrxqsets);
315 /* Allocate queue structure memory */
317 (struct ix_rx_queue *)malloc(sizeof(struct ix_rx_queue) * nrxqsets,
318 M_DEVBUF, M_NOWAIT | M_ZERO);
319 if (!adapter->rx_queues) {
320 device_printf(iflib_get_dev(ctx),
321 "Unable to allocate TX ring memory\n");
326 for (i = 0, que = adapter->rx_queues; i < nrxqsets; i++, que++) {
327 struct rx_ring *rxr = &que->rxr;
329 rxr->adapter = que->adapter = adapter;
332 /* get the virtual and physical address of the hw queues */
333 rxr->tail = IXGBE_VFRDT(rxr->me);
334 rxr->rx_base = (union ixgbe_adv_rx_desc *)vaddrs[i];
335 rxr->rx_paddr = paddrs[i*nrxqs];
340 device_printf(iflib_get_dev(ctx), "allocated for %d rx queues\n",
341 adapter->num_rx_queues);
346 ixv_if_queues_free(ctx);
349 } /* ixv_if_rx_queues_alloc */
351 /************************************************************************
353 ************************************************************************/
355 ixv_if_queues_free(if_ctx_t ctx)
357 struct adapter *adapter = iflib_get_softc(ctx);
358 struct ix_tx_queue *que = adapter->tx_queues;
364 for (i = 0; i < adapter->num_tx_queues; i++, que++) {
365 struct tx_ring *txr = &que->txr;
366 if (txr->tx_rsq == NULL)
369 free(txr->tx_rsq, M_DEVBUF);
372 if (adapter->tx_queues != NULL)
373 free(adapter->tx_queues, M_DEVBUF);
375 if (adapter->rx_queues != NULL)
376 free(adapter->rx_queues, M_DEVBUF);
377 adapter->tx_queues = NULL;
378 adapter->rx_queues = NULL;
379 } /* ixv_if_queues_free */
381 /************************************************************************
382 * ixv_if_attach_pre - Device initialization routine
384 * Called when the driver is being loaded.
385 * Identifies the type of hardware, allocates all resources
386 * and initializes the hardware.
388 * return 0 on success, positive on failure
389 ************************************************************************/
391 ixv_if_attach_pre(if_ctx_t ctx)
393 struct adapter *adapter;
395 if_softc_ctx_t scctx;
399 INIT_DEBUGOUT("ixv_attach: begin");
401 /* Allocate, clear, and link in our adapter structure */
402 dev = iflib_get_dev(ctx);
403 adapter = iflib_get_softc(ctx);
406 adapter->hw.back = adapter;
407 scctx = adapter->shared = iflib_get_softc_ctx(ctx);
408 adapter->media = iflib_get_media(ctx);
411 /* Do base PCI setup - map BAR0 */
412 if (ixv_allocate_pci_resources(ctx)) {
413 device_printf(dev, "ixv_allocate_pci_resources() failed!\n");
419 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
420 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "debug",
421 CTLTYPE_INT | CTLFLAG_RW, adapter, 0, ixv_sysctl_debug, "I",
424 /* Determine hardware revision */
425 ixv_identify_hardware(ctx);
426 ixv_init_device_features(adapter);
428 /* Initialize the shared code */
429 error = ixgbe_init_ops_vf(hw);
431 device_printf(dev, "ixgbe_init_ops_vf() failed!\n");
436 /* Setup the mailbox */
437 ixgbe_init_mbx_params_vf(hw);
439 error = hw->mac.ops.reset_hw(hw);
440 if (error == IXGBE_ERR_RESET_FAILED)
441 device_printf(dev, "...reset_hw() failure: Reset Failed!\n");
443 device_printf(dev, "...reset_hw() failed with error %d\n",
450 error = hw->mac.ops.init_hw(hw);
452 device_printf(dev, "...init_hw() failed with error %d\n",
458 /* Negotiate mailbox API version */
459 error = ixv_negotiate_api(adapter);
462 "Mailbox API negotiation failed during attach!\n");
466 /* If no mac address was assigned, make a random one */
467 if (!ixv_check_ether_addr(hw->mac.addr)) {
468 u8 addr[ETHER_ADDR_LEN];
469 arc4rand(&addr, sizeof(addr), 0);
472 bcopy(addr, hw->mac.addr, sizeof(addr));
473 bcopy(addr, hw->mac.perm_addr, sizeof(addr));
476 /* Most of the iflib initialization... */
478 iflib_set_mac(ctx, hw->mac.addr);
479 switch (adapter->hw.mac.type) {
480 case ixgbe_mac_X550_vf:
481 case ixgbe_mac_X550EM_x_vf:
482 case ixgbe_mac_X550EM_a_vf:
483 scctx->isc_ntxqsets_max = scctx->isc_nrxqsets_max = 2;
486 scctx->isc_ntxqsets_max = scctx->isc_nrxqsets_max = 1;
488 scctx->isc_txqsizes[0] =
489 roundup2(scctx->isc_ntxd[0] * sizeof(union ixgbe_adv_tx_desc) +
490 sizeof(u32), DBA_ALIGN);
491 scctx->isc_rxqsizes[0] =
492 roundup2(scctx->isc_nrxd[0] * sizeof(union ixgbe_adv_rx_desc),
495 scctx->isc_tx_csum_flags = CSUM_IP | CSUM_TCP | CSUM_UDP | CSUM_TSO |
496 CSUM_IP6_TCP | CSUM_IP6_UDP | CSUM_IP6_TSO;
497 scctx->isc_tx_nsegments = IXGBE_82599_SCATTER;
498 scctx->isc_msix_bar = PCIR_BAR(MSIX_82598_BAR);
499 scctx->isc_tx_tso_segments_max = scctx->isc_tx_nsegments;
500 scctx->isc_tx_tso_size_max = IXGBE_TSO_SIZE;
501 scctx->isc_tx_tso_segsize_max = PAGE_SIZE;
503 scctx->isc_txrx = &ixgbe_txrx;
506 * Tell the upper layer(s) we support everything the PF
507 * driver does except...
511 scctx->isc_capenable = IXGBE_CAPS;
512 scctx->isc_capenable ^= IFCAP_HWSTATS | IFCAP_WOL;
514 INIT_DEBUGOUT("ixv_if_attach_pre: end");
519 ixv_free_pci_resources(ctx);
522 } /* ixv_if_attach_pre */
525 ixv_if_attach_post(if_ctx_t ctx)
527 struct adapter *adapter = iflib_get_softc(ctx);
528 device_t dev = iflib_get_dev(ctx);
531 /* Setup OS specific network interface */
532 error = ixv_setup_interface(ctx);
534 device_printf(dev, "Interface setup failed: %d\n", error);
538 /* Do the stats setup */
539 ixv_save_stats(adapter);
540 ixv_init_stats(adapter);
541 ixv_add_stats_sysctls(adapter);
545 } /* ixv_if_attach_post */
547 /************************************************************************
548 * ixv_detach - Device removal routine
550 * Called when the driver is being removed.
551 * Stops the adapter and deallocates all the resources
552 * that were allocated for driver operation.
554 * return 0 on success, positive on failure
555 ************************************************************************/
557 ixv_if_detach(if_ctx_t ctx)
559 INIT_DEBUGOUT("ixv_detach: begin");
561 ixv_free_pci_resources(ctx);
564 } /* ixv_if_detach */
566 /************************************************************************
568 ************************************************************************/
570 ixv_if_mtu_set(if_ctx_t ctx, uint32_t mtu)
572 struct adapter *adapter = iflib_get_softc(ctx);
573 struct ifnet *ifp = iflib_get_ifp(ctx);
576 IOCTL_DEBUGOUT("ioctl: SIOCSIFMTU (Set Interface MTU)");
577 if (mtu > IXGBE_MAX_FRAME_SIZE - IXGBE_MTU_HDR) {
581 adapter->max_frame_size = ifp->if_mtu + IXGBE_MTU_HDR;
585 } /* ixv_if_mtu_set */
587 /************************************************************************
588 * ixv_if_init - Init entry point
590 * Used in two ways: It is used by the stack as an init entry
591 * point in network interface structure. It is also used
592 * by the driver as a hw/sw initialization routine to get
593 * to a consistent state.
595 * return 0 on success, positive on failure
596 ************************************************************************/
598 ixv_if_init(if_ctx_t ctx)
600 struct adapter *adapter = iflib_get_softc(ctx);
601 struct ifnet *ifp = iflib_get_ifp(ctx);
602 device_t dev = iflib_get_dev(ctx);
603 struct ixgbe_hw *hw = &adapter->hw;
606 INIT_DEBUGOUT("ixv_if_init: begin");
607 hw->adapter_stopped = FALSE;
608 hw->mac.ops.stop_adapter(hw);
610 /* reprogram the RAR[0] in case user changed it. */
611 hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0, IXGBE_RAH_AV);
613 /* Get the latest mac address, User can use a LAA */
614 bcopy(IF_LLADDR(ifp), hw->mac.addr, IXGBE_ETH_LENGTH_OF_ADDRESS);
615 hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0, 1);
617 /* Reset VF and renegotiate mailbox API version */
618 hw->mac.ops.reset_hw(hw);
619 error = ixv_negotiate_api(adapter);
622 "Mailbox API negotiation failed in if_init!\n");
626 ixv_initialize_transmit_units(ctx);
628 /* Setup Multicast table */
629 ixv_if_multi_set(ctx);
632 * Determine the correct mbuf pool
633 * for doing jumbo/headersplit
635 if (ifp->if_mtu > ETHERMTU)
636 adapter->rx_mbuf_sz = MJUMPAGESIZE;
638 adapter->rx_mbuf_sz = MCLBYTES;
640 /* Configure RX settings */
641 ixv_initialize_receive_units(ctx);
643 /* Set up VLAN offload and filter */
644 ixv_setup_vlan_support(ctx);
646 /* Set up MSI-X routing */
647 ixv_configure_ivars(adapter);
649 /* Set up auto-mask */
650 IXGBE_WRITE_REG(hw, IXGBE_VTEIAM, IXGBE_EICS_RTX_QUEUE);
652 /* Set moderation on the Link interrupt */
653 IXGBE_WRITE_REG(hw, IXGBE_VTEITR(adapter->vector), IXGBE_LINK_ITR);
656 ixv_init_stats(adapter);
658 /* Config/Enable Link */
659 hw->mac.ops.check_link(hw, &adapter->link_speed, &adapter->link_up,
662 /* And now turn on interrupts */
663 ixv_if_enable_intr(ctx);
668 /************************************************************************
670 ************************************************************************/
672 ixv_enable_queue(struct adapter *adapter, u32 vector)
674 struct ixgbe_hw *hw = &adapter->hw;
675 u32 queue = 1 << vector;
678 mask = (IXGBE_EIMS_RTX_QUEUE & queue);
679 IXGBE_WRITE_REG(hw, IXGBE_VTEIMS, mask);
680 } /* ixv_enable_queue */
682 /************************************************************************
684 ************************************************************************/
686 ixv_disable_queue(struct adapter *adapter, u32 vector)
688 struct ixgbe_hw *hw = &adapter->hw;
689 u64 queue = (u64)(1 << vector);
692 mask = (IXGBE_EIMS_RTX_QUEUE & queue);
693 IXGBE_WRITE_REG(hw, IXGBE_VTEIMC, mask);
694 } /* ixv_disable_queue */
697 /************************************************************************
698 * ixv_msix_que - MSI-X Queue Interrupt Service routine
699 ************************************************************************/
701 ixv_msix_que(void *arg)
703 struct ix_rx_queue *que = arg;
704 struct adapter *adapter = que->adapter;
706 ixv_disable_queue(adapter, que->msix);
709 return (FILTER_SCHEDULE_THREAD);
712 /************************************************************************
714 ************************************************************************/
716 ixv_msix_mbx(void *arg)
718 struct adapter *adapter = arg;
719 struct ixgbe_hw *hw = &adapter->hw;
724 /* First get the cause */
725 reg = IXGBE_READ_REG(hw, IXGBE_VTEICS);
726 /* Clear interrupt with write */
727 IXGBE_WRITE_REG(hw, IXGBE_VTEICR, reg);
729 /* Link status change */
730 if (reg & IXGBE_EICR_LSC)
731 iflib_admin_intr_deferred(adapter->ctx);
733 IXGBE_WRITE_REG(hw, IXGBE_VTEIMS, IXGBE_EIMS_OTHER);
735 return (FILTER_HANDLED);
738 /************************************************************************
739 * ixv_media_status - Media Ioctl callback
741 * Called whenever the user queries the status of
742 * the interface using ifconfig.
743 ************************************************************************/
745 ixv_if_media_status(if_ctx_t ctx, struct ifmediareq * ifmr)
747 struct adapter *adapter = iflib_get_softc(ctx);
749 INIT_DEBUGOUT("ixv_media_status: begin");
751 iflib_admin_intr_deferred(ctx);
753 ifmr->ifm_status = IFM_AVALID;
754 ifmr->ifm_active = IFM_ETHER;
756 if (!adapter->link_active)
759 ifmr->ifm_status |= IFM_ACTIVE;
761 switch (adapter->link_speed) {
762 case IXGBE_LINK_SPEED_1GB_FULL:
763 ifmr->ifm_active |= IFM_1000_T | IFM_FDX;
765 case IXGBE_LINK_SPEED_10GB_FULL:
766 ifmr->ifm_active |= IFM_10G_T | IFM_FDX;
768 case IXGBE_LINK_SPEED_100_FULL:
769 ifmr->ifm_active |= IFM_100_TX | IFM_FDX;
771 case IXGBE_LINK_SPEED_10_FULL:
772 ifmr->ifm_active |= IFM_10_T | IFM_FDX;
775 } /* ixv_if_media_status */
777 /************************************************************************
778 * ixv_if_media_change - Media Ioctl callback
780 * Called when the user changes speed/duplex using
781 * media/mediopt option with ifconfig.
782 ************************************************************************/
784 ixv_if_media_change(if_ctx_t ctx)
786 struct adapter *adapter = iflib_get_softc(ctx);
787 struct ifmedia *ifm = iflib_get_media(ctx);
789 INIT_DEBUGOUT("ixv_media_change: begin");
791 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
794 switch (IFM_SUBTYPE(ifm->ifm_media)) {
798 device_printf(adapter->dev, "Only auto media type\n");
803 } /* ixv_if_media_change */
806 /************************************************************************
809 * Negotiate the Mailbox API with the PF;
810 * start with the most featured API first.
811 ************************************************************************/
813 ixv_negotiate_api(struct adapter *adapter)
815 struct ixgbe_hw *hw = &adapter->hw;
816 int mbx_api[] = { ixgbe_mbox_api_11,
818 ixgbe_mbox_api_unknown };
821 while (mbx_api[i] != ixgbe_mbox_api_unknown) {
822 if (ixgbevf_negotiate_api_version(hw, mbx_api[i]) == 0)
828 } /* ixv_negotiate_api */
831 /************************************************************************
832 * ixv_if_multi_set - Multicast Update
834 * Called whenever multicast address list is updated.
835 ************************************************************************/
837 ixv_if_multi_set(if_ctx_t ctx)
839 u8 mta[MAX_NUM_MULTICAST_ADDRESSES * IXGBE_ETH_LENGTH_OF_ADDRESS];
840 struct adapter *adapter = iflib_get_softc(ctx);
842 struct ifmultiaddr *ifma;
843 if_t ifp = iflib_get_ifp(ctx);
846 IOCTL_DEBUGOUT("ixv_if_multi_set: begin");
848 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
849 if (ifma->ifma_addr->sa_family != AF_LINK)
851 bcopy(LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
852 &mta[mcnt * IXGBE_ETH_LENGTH_OF_ADDRESS],
853 IXGBE_ETH_LENGTH_OF_ADDRESS);
859 adapter->hw.mac.ops.update_mc_addr_list(&adapter->hw, update_ptr, mcnt,
860 ixv_mc_array_itr, TRUE);
861 } /* ixv_if_multi_set */
863 /************************************************************************
866 * An iterator function needed by the multicast shared code.
867 * It feeds the shared code routine the addresses in the
868 * array of ixv_set_multi() one by one.
869 ************************************************************************/
871 ixv_mc_array_itr(struct ixgbe_hw *hw, u8 **update_ptr, u32 *vmdq)
873 u8 *addr = *update_ptr;
878 newptr = addr + IXGBE_ETH_LENGTH_OF_ADDRESS;
879 *update_ptr = newptr;
882 } /* ixv_mc_array_itr */
884 /************************************************************************
885 * ixv_if_local_timer - Timer routine
887 * Checks for link status, updates statistics,
888 * and runs the watchdog check.
889 ************************************************************************/
891 ixv_if_local_timer(if_ctx_t ctx, uint16_t qid)
896 /* Fire off the adminq task */
897 iflib_admin_intr_deferred(ctx);
898 } /* ixv_if_local_timer */
900 /************************************************************************
901 * ixv_if_update_admin_status - Update OS on link state
903 * Note: Only updates the OS on the cached link state.
904 * The real check of the hardware only happens with
906 ************************************************************************/
908 ixv_if_update_admin_status(if_ctx_t ctx)
910 struct adapter *adapter = iflib_get_softc(ctx);
911 device_t dev = iflib_get_dev(ctx);
913 adapter->hw.mac.get_link_status = TRUE;
914 ixgbe_check_link(&adapter->hw, &adapter->link_speed, &adapter->link_up,
917 if (adapter->link_up) {
918 if (adapter->link_active == FALSE) {
920 device_printf(dev, "Link is up %d Gbps %s \n",
921 ((adapter->link_speed == 128) ? 10 : 1),
923 adapter->link_active = TRUE;
924 iflib_link_state_change(ctx, LINK_STATE_UP,
927 } else { /* Link down */
928 if (adapter->link_active == TRUE) {
930 device_printf(dev, "Link is Down\n");
931 iflib_link_state_change(ctx, LINK_STATE_DOWN, 0);
932 adapter->link_active = FALSE;
937 ixv_update_stats(adapter);
938 } /* ixv_if_update_admin_status */
941 /************************************************************************
942 * ixv_if_stop - Stop the hardware
944 * Disables all traffic on the adapter by issuing a
945 * global reset on the MAC and deallocates TX/RX buffers.
946 ************************************************************************/
948 ixv_if_stop(if_ctx_t ctx)
950 struct adapter *adapter = iflib_get_softc(ctx);
951 struct ixgbe_hw *hw = &adapter->hw;
953 INIT_DEBUGOUT("ixv_stop: begin\n");
955 ixv_if_disable_intr(ctx);
957 hw->mac.ops.reset_hw(hw);
958 adapter->hw.adapter_stopped = FALSE;
959 hw->mac.ops.stop_adapter(hw);
961 /* Update the stack */
962 adapter->link_up = FALSE;
963 ixv_if_update_admin_status(ctx);
965 /* reprogram the RAR[0] in case user changed it. */
966 hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0, IXGBE_RAH_AV);
970 /************************************************************************
971 * ixv_identify_hardware - Determine hardware revision.
972 ************************************************************************/
974 ixv_identify_hardware(if_ctx_t ctx)
976 struct adapter *adapter = iflib_get_softc(ctx);
977 device_t dev = iflib_get_dev(ctx);
978 struct ixgbe_hw *hw = &adapter->hw;
980 /* Save off the information about this board */
981 hw->vendor_id = pci_get_vendor(dev);
982 hw->device_id = pci_get_device(dev);
983 hw->revision_id = pci_get_revid(dev);
984 hw->subsystem_vendor_id = pci_get_subvendor(dev);
985 hw->subsystem_device_id = pci_get_subdevice(dev);
987 /* A subset of set_mac_type */
988 switch (hw->device_id) {
989 case IXGBE_DEV_ID_82599_VF:
990 hw->mac.type = ixgbe_mac_82599_vf;
992 case IXGBE_DEV_ID_X540_VF:
993 hw->mac.type = ixgbe_mac_X540_vf;
995 case IXGBE_DEV_ID_X550_VF:
996 hw->mac.type = ixgbe_mac_X550_vf;
998 case IXGBE_DEV_ID_X550EM_X_VF:
999 hw->mac.type = ixgbe_mac_X550EM_x_vf;
1001 case IXGBE_DEV_ID_X550EM_A_VF:
1002 hw->mac.type = ixgbe_mac_X550EM_a_vf;
1005 device_printf(dev, "unknown mac type\n");
1006 hw->mac.type = ixgbe_mac_unknown;
1009 } /* ixv_identify_hardware */
1011 /************************************************************************
1012 * ixv_if_msix_intr_assign - Setup MSI-X Interrupt resources and handlers
1013 ************************************************************************/
1015 ixv_if_msix_intr_assign(if_ctx_t ctx, int msix)
1017 struct adapter *adapter = iflib_get_softc(ctx);
1018 device_t dev = iflib_get_dev(ctx);
1019 struct ix_rx_queue *rx_que = adapter->rx_queues;
1020 struct ix_tx_queue *tx_que;
1021 int error, rid, vector = 0;
1024 for (int i = 0; i < adapter->num_rx_queues; i++, vector++, rx_que++) {
1027 snprintf(buf, sizeof(buf), "rxq%d", i);
1028 error = iflib_irq_alloc_generic(ctx, &rx_que->que_irq, rid,
1029 IFLIB_INTR_RX, ixv_msix_que, rx_que, rx_que->rxr.me, buf);
1032 device_printf(iflib_get_dev(ctx),
1033 "Failed to allocate que int %d err: %d", i, error);
1034 adapter->num_rx_queues = i + 1;
1038 rx_que->msix = vector;
1039 adapter->active_queues |= (u64)(1 << rx_que->msix);
1043 for (int i = 0; i < adapter->num_tx_queues; i++) {
1044 snprintf(buf, sizeof(buf), "txq%d", i);
1045 tx_que = &adapter->tx_queues[i];
1046 tx_que->msix = i % adapter->num_rx_queues;
1047 iflib_softirq_alloc_generic(ctx,
1048 &adapter->rx_queues[tx_que->msix].que_irq,
1049 IFLIB_INTR_TX, tx_que, tx_que->txr.me, buf);
1052 error = iflib_irq_alloc_generic(ctx, &adapter->irq, rid,
1053 IFLIB_INTR_ADMIN, ixv_msix_mbx, adapter, 0, "aq");
1055 device_printf(iflib_get_dev(ctx),
1056 "Failed to register admin handler");
1060 adapter->vector = vector;
1062 * Due to a broken design QEMU will fail to properly
1063 * enable the guest for MSIX unless the vectors in
1064 * the table are all set up, so we must rewrite the
1065 * ENABLE in the MSIX control register again at this
1066 * point to cause it to successfully initialize us.
1068 if (adapter->hw.mac.type == ixgbe_mac_82599_vf) {
1070 pci_find_cap(dev, PCIY_MSIX, &rid);
1071 rid += PCIR_MSIX_CTRL;
1072 msix_ctrl = pci_read_config(dev, rid, 2);
1073 msix_ctrl |= PCIM_MSIXCTRL_MSIX_ENABLE;
1074 pci_write_config(dev, rid, msix_ctrl, 2);
1080 iflib_irq_free(ctx, &adapter->irq);
1081 rx_que = adapter->rx_queues;
1082 for (int i = 0; i < adapter->num_rx_queues; i++, rx_que++)
1083 iflib_irq_free(ctx, &rx_que->que_irq);
1086 } /* ixv_if_msix_intr_assign */
1088 /************************************************************************
1089 * ixv_allocate_pci_resources
1090 ************************************************************************/
1092 ixv_allocate_pci_resources(if_ctx_t ctx)
1094 struct adapter *adapter = iflib_get_softc(ctx);
1095 device_t dev = iflib_get_dev(ctx);
1099 adapter->pci_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
1102 if (!(adapter->pci_mem)) {
1103 device_printf(dev, "Unable to allocate bus resource: memory\n");
1107 adapter->osdep.mem_bus_space_tag = rman_get_bustag(adapter->pci_mem);
1108 adapter->osdep.mem_bus_space_handle =
1109 rman_get_bushandle(adapter->pci_mem);
1110 adapter->hw.hw_addr = (u8 *)&adapter->osdep.mem_bus_space_handle;
1113 } /* ixv_allocate_pci_resources */
1115 /************************************************************************
1116 * ixv_free_pci_resources
1117 ************************************************************************/
1119 ixv_free_pci_resources(if_ctx_t ctx)
1121 struct adapter *adapter = iflib_get_softc(ctx);
1122 struct ix_rx_queue *que = adapter->rx_queues;
1123 device_t dev = iflib_get_dev(ctx);
1125 /* Release all msix queue resources */
1126 if (adapter->intr_type == IFLIB_INTR_MSIX)
1127 iflib_irq_free(ctx, &adapter->irq);
1130 for (int i = 0; i < adapter->num_rx_queues; i++, que++) {
1131 iflib_irq_free(ctx, &que->que_irq);
1135 /* Clean the Legacy or Link interrupt last */
1136 if (adapter->pci_mem != NULL)
1137 bus_release_resource(dev, SYS_RES_MEMORY,
1138 PCIR_BAR(0), adapter->pci_mem);
1139 } /* ixv_free_pci_resources */
1141 /************************************************************************
1142 * ixv_setup_interface
1144 * Setup networking device structure and register an interface.
1145 ************************************************************************/
1147 ixv_setup_interface(if_ctx_t ctx)
1149 struct adapter *adapter = iflib_get_softc(ctx);
1150 if_softc_ctx_t scctx = adapter->shared;
1151 struct ifnet *ifp = iflib_get_ifp(ctx);
1153 INIT_DEBUGOUT("ixv_setup_interface: begin");
1155 if_setifheaderlen(ifp, sizeof(struct ether_vlan_header));
1156 if_setbaudrate(ifp, IF_Gbps(10));
1157 ifp->if_snd.ifq_maxlen = scctx->isc_ntxd[0] - 2;
1160 adapter->max_frame_size = ifp->if_mtu + IXGBE_MTU_HDR;
1161 ifmedia_add(adapter->media, IFM_ETHER | IFM_AUTO, 0, NULL);
1162 ifmedia_set(adapter->media, IFM_ETHER | IFM_AUTO);
1165 } /* ixv_setup_interface */
1167 /************************************************************************
1168 * ixv_if_get_counter
1169 ************************************************************************/
1171 ixv_if_get_counter(if_ctx_t ctx, ift_counter cnt)
1173 struct adapter *adapter = iflib_get_softc(ctx);
1174 if_t ifp = iflib_get_ifp(ctx);
1177 case IFCOUNTER_IPACKETS:
1178 return (adapter->ipackets);
1179 case IFCOUNTER_OPACKETS:
1180 return (adapter->opackets);
1181 case IFCOUNTER_IBYTES:
1182 return (adapter->ibytes);
1183 case IFCOUNTER_OBYTES:
1184 return (adapter->obytes);
1185 case IFCOUNTER_IMCASTS:
1186 return (adapter->imcasts);
1188 return (if_get_counter_default(ifp, cnt));
1190 } /* ixv_if_get_counter */
1192 /************************************************************************
1193 * ixv_initialize_transmit_units - Enable transmit unit.
1194 ************************************************************************/
1196 ixv_initialize_transmit_units(if_ctx_t ctx)
1198 struct adapter *adapter = iflib_get_softc(ctx);
1199 struct ixgbe_hw *hw = &adapter->hw;
1200 if_softc_ctx_t scctx = adapter->shared;
1201 struct ix_tx_queue *que = adapter->tx_queues;
1204 for (i = 0; i < adapter->num_tx_queues; i++, que++) {
1205 struct tx_ring *txr = &que->txr;
1206 u64 tdba = txr->tx_paddr;
1210 /* Set WTHRESH to 8, burst writeback */
1211 txdctl = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(j));
1212 txdctl |= (8 << 16);
1213 IXGBE_WRITE_REG(hw, IXGBE_VFTXDCTL(j), txdctl);
1215 /* Set the HW Tx Head and Tail indices */
1216 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VFTDH(j), 0);
1217 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VFTDT(j), 0);
1219 /* Set Tx Tail register */
1220 txr->tail = IXGBE_VFTDT(j);
1222 txr->tx_rs_cidx = txr->tx_rs_pidx = txr->tx_cidx_processed = 0;
1223 for (int k = 0; k < scctx->isc_ntxd[0]; k++)
1224 txr->tx_rsq[k] = QIDX_INVALID;
1226 /* Set Ring parameters */
1227 IXGBE_WRITE_REG(hw, IXGBE_VFTDBAL(j),
1228 (tdba & 0x00000000ffffffffULL));
1229 IXGBE_WRITE_REG(hw, IXGBE_VFTDBAH(j), (tdba >> 32));
1230 IXGBE_WRITE_REG(hw, IXGBE_VFTDLEN(j),
1231 scctx->isc_ntxd[0] * sizeof(struct ixgbe_legacy_tx_desc));
1232 txctrl = IXGBE_READ_REG(hw, IXGBE_VFDCA_TXCTRL(j));
1233 txctrl &= ~IXGBE_DCA_TXCTRL_DESC_WRO_EN;
1234 IXGBE_WRITE_REG(hw, IXGBE_VFDCA_TXCTRL(j), txctrl);
1237 txdctl = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(j));
1238 txdctl |= IXGBE_TXDCTL_ENABLE;
1239 IXGBE_WRITE_REG(hw, IXGBE_VFTXDCTL(j), txdctl);
1243 } /* ixv_initialize_transmit_units */
1245 /************************************************************************
1246 * ixv_initialize_rss_mapping
1247 ************************************************************************/
1249 ixv_initialize_rss_mapping(struct adapter *adapter)
1251 struct ixgbe_hw *hw = &adapter->hw;
1252 u32 reta = 0, mrqc, rss_key[10];
1255 u32 rss_hash_config;
1257 if (adapter->feat_en & IXGBE_FEATURE_RSS) {
1258 /* Fetch the configured RSS key */
1259 rss_getkey((uint8_t *)&rss_key);
1261 /* set up random bits */
1262 arc4rand(&rss_key, sizeof(rss_key), 0);
1265 /* Now fill out hash function seeds */
1266 for (i = 0; i < 10; i++)
1267 IXGBE_WRITE_REG(hw, IXGBE_VFRSSRK(i), rss_key[i]);
1269 /* Set up the redirection table */
1270 for (i = 0, j = 0; i < 64; i++, j++) {
1271 if (j == adapter->num_rx_queues)
1274 if (adapter->feat_en & IXGBE_FEATURE_RSS) {
1276 * Fetch the RSS bucket id for the given indirection
1277 * entry. Cap it at the number of configured buckets
1278 * (which is num_rx_queues.)
1280 queue_id = rss_get_indirection_to_bucket(i);
1281 queue_id = queue_id % adapter->num_rx_queues;
1286 * The low 8 bits are for hash value (n+0);
1287 * The next 8 bits are for hash value (n+1), etc.
1290 reta |= ((uint32_t)queue_id) << 24;
1292 IXGBE_WRITE_REG(hw, IXGBE_VFRETA(i >> 2), reta);
1297 /* Perform hash on these packet types */
1298 if (adapter->feat_en & IXGBE_FEATURE_RSS)
1299 rss_hash_config = rss_gethashconfig();
1302 * Disable UDP - IP fragments aren't currently being handled
1303 * and so we end up with a mix of 2-tuple and 4-tuple
1306 rss_hash_config = RSS_HASHTYPE_RSS_IPV4
1307 | RSS_HASHTYPE_RSS_TCP_IPV4
1308 | RSS_HASHTYPE_RSS_IPV6
1309 | RSS_HASHTYPE_RSS_TCP_IPV6;
1312 mrqc = IXGBE_MRQC_RSSEN;
1313 if (rss_hash_config & RSS_HASHTYPE_RSS_IPV4)
1314 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4;
1315 if (rss_hash_config & RSS_HASHTYPE_RSS_TCP_IPV4)
1316 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4_TCP;
1317 if (rss_hash_config & RSS_HASHTYPE_RSS_IPV6)
1318 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6;
1319 if (rss_hash_config & RSS_HASHTYPE_RSS_TCP_IPV6)
1320 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_TCP;
1321 if (rss_hash_config & RSS_HASHTYPE_RSS_IPV6_EX)
1322 device_printf(adapter->dev, "%s: RSS_HASHTYPE_RSS_IPV6_EX defined, but not supported\n",
1324 if (rss_hash_config & RSS_HASHTYPE_RSS_TCP_IPV6_EX)
1325 device_printf(adapter->dev, "%s: RSS_HASHTYPE_RSS_TCP_IPV6_EX defined, but not supported\n",
1327 if (rss_hash_config & RSS_HASHTYPE_RSS_UDP_IPV4)
1328 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4_UDP;
1329 if (rss_hash_config & RSS_HASHTYPE_RSS_UDP_IPV6)
1330 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_UDP;
1331 if (rss_hash_config & RSS_HASHTYPE_RSS_UDP_IPV6_EX)
1332 device_printf(adapter->dev, "%s: RSS_HASHTYPE_RSS_UDP_IPV6_EX defined, but not supported\n",
1334 IXGBE_WRITE_REG(hw, IXGBE_VFMRQC, mrqc);
1335 } /* ixv_initialize_rss_mapping */
1338 /************************************************************************
1339 * ixv_initialize_receive_units - Setup receive registers and features.
1340 ************************************************************************/
1342 ixv_initialize_receive_units(if_ctx_t ctx)
1344 struct adapter *adapter = iflib_get_softc(ctx);
1345 if_softc_ctx_t scctx;
1346 struct ixgbe_hw *hw = &adapter->hw;
1347 struct ifnet *ifp = iflib_get_ifp(ctx);
1348 struct ix_rx_queue *que = adapter->rx_queues;
1351 if (ifp->if_mtu > ETHERMTU)
1352 bufsz = 4096 >> IXGBE_SRRCTL_BSIZEPKT_SHIFT;
1354 bufsz = 2048 >> IXGBE_SRRCTL_BSIZEPKT_SHIFT;
1356 psrtype = IXGBE_PSRTYPE_TCPHDR
1357 | IXGBE_PSRTYPE_UDPHDR
1358 | IXGBE_PSRTYPE_IPV4HDR
1359 | IXGBE_PSRTYPE_IPV6HDR
1360 | IXGBE_PSRTYPE_L2HDR;
1362 if (adapter->num_rx_queues > 1)
1365 IXGBE_WRITE_REG(hw, IXGBE_VFPSRTYPE, psrtype);
1367 /* Tell PF our max_frame size */
1368 if (ixgbevf_rlpml_set_vf(hw, adapter->max_frame_size) != 0) {
1369 device_printf(adapter->dev, "There is a problem with the PF setup. It is likely the receive unit for this VF will not function correctly.\n");
1371 scctx = adapter->shared;
1373 for (int i = 0; i < adapter->num_rx_queues; i++, que++) {
1374 struct rx_ring *rxr = &que->rxr;
1375 u64 rdba = rxr->rx_paddr;
1379 /* Disable the queue */
1380 rxdctl = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(j));
1381 rxdctl &= ~IXGBE_RXDCTL_ENABLE;
1382 IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(j), rxdctl);
1383 for (int k = 0; k < 10; k++) {
1384 if (IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(j)) &
1385 IXGBE_RXDCTL_ENABLE)
1391 /* Setup the Base and Length of the Rx Descriptor Ring */
1392 IXGBE_WRITE_REG(hw, IXGBE_VFRDBAL(j),
1393 (rdba & 0x00000000ffffffffULL));
1394 IXGBE_WRITE_REG(hw, IXGBE_VFRDBAH(j), (rdba >> 32));
1395 IXGBE_WRITE_REG(hw, IXGBE_VFRDLEN(j),
1396 scctx->isc_nrxd[0] * sizeof(union ixgbe_adv_rx_desc));
1398 /* Reset the ring indices */
1399 IXGBE_WRITE_REG(hw, IXGBE_VFRDH(rxr->me), 0);
1400 IXGBE_WRITE_REG(hw, IXGBE_VFRDT(rxr->me), 0);
1402 /* Set up the SRRCTL register */
1403 reg = IXGBE_READ_REG(hw, IXGBE_VFSRRCTL(j));
1404 reg &= ~IXGBE_SRRCTL_BSIZEHDR_MASK;
1405 reg &= ~IXGBE_SRRCTL_BSIZEPKT_MASK;
1407 reg |= IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF;
1408 IXGBE_WRITE_REG(hw, IXGBE_VFSRRCTL(j), reg);
1410 /* Capture Rx Tail index */
1411 rxr->tail = IXGBE_VFRDT(rxr->me);
1413 /* Do the queue enabling last */
1414 rxdctl |= IXGBE_RXDCTL_ENABLE | IXGBE_RXDCTL_VME;
1415 IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(j), rxdctl);
1416 for (int l = 0; l < 10; l++) {
1417 if (IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(j)) &
1418 IXGBE_RXDCTL_ENABLE)
1424 /* Set the Tail Pointer */
1427 * In netmap mode, we must preserve the buffers made
1428 * available to userspace before the if_init()
1429 * (this is true by default on the TX side, because
1430 * init makes all buffers available to userspace).
1432 * netmap_reset() and the device specific routines
1433 * (e.g. ixgbe_setup_receive_rings()) map these
1434 * buffers at the end of the NIC ring, so here we
1435 * must set the RDT (tail) register to make sure
1436 * they are not overwritten.
1438 * In this driver the NIC ring starts at RDH = 0,
1439 * RDT points to the last slot available for reception (?),
1440 * so RDT = num_rx_desc - 1 means the whole ring is available.
1442 if (ifp->if_capenable & IFCAP_NETMAP) {
1443 struct netmap_adapter *na = NA(ifp);
1444 struct netmap_kring *kring = &na->rx_rings[j];
1445 int t = na->num_rx_desc - 1 - nm_kr_rxspace(kring);
1447 IXGBE_WRITE_REG(hw, IXGBE_VFRDT(rxr->me), t);
1449 #endif /* DEV_NETMAP */
1450 IXGBE_WRITE_REG(hw, IXGBE_VFRDT(rxr->me),
1451 scctx->isc_nrxd[0] - 1);
1454 ixv_initialize_rss_mapping(adapter);
1455 } /* ixv_initialize_receive_units */
1457 /************************************************************************
1458 * ixv_setup_vlan_support
1459 ************************************************************************/
1461 ixv_setup_vlan_support(if_ctx_t ctx)
1463 struct adapter *adapter = iflib_get_softc(ctx);
1464 struct ixgbe_hw *hw = &adapter->hw;
1465 u32 ctrl, vid, vfta, retry;
1468 * We get here thru if_init, meaning
1469 * a soft reset, this has already cleared
1470 * the VFTA and other state, so if there
1471 * have been no vlan's registered do nothing.
1473 if (adapter->num_vlans == 0)
1476 /* Enable the queues */
1477 for (int i = 0; i < adapter->num_rx_queues; i++) {
1478 ctrl = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i));
1479 ctrl |= IXGBE_RXDCTL_VME;
1480 IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(i), ctrl);
1482 * Let Rx path know that it needs to store VLAN tag
1483 * as part of extra mbuf info.
1485 adapter->rx_queues[i].rxr.vtag_strip = TRUE;
1489 * A soft reset zero's out the VFTA, so
1490 * we need to repopulate it now.
1492 for (int i = 0; i < IXGBE_VFTA_SIZE; i++) {
1493 if (ixv_shadow_vfta[i] == 0)
1495 vfta = ixv_shadow_vfta[i];
1497 * Reconstruct the vlan id's
1498 * based on the bits set in each
1499 * of the array ints.
1501 for (int j = 0; j < 32; j++) {
1503 if ((vfta & (1 << j)) == 0)
1506 /* Call the shared code mailbox routine */
1507 while (hw->mac.ops.set_vfta(hw, vid, 0, TRUE, FALSE)) {
1513 } /* ixv_setup_vlan_support */
1515 /************************************************************************
1516 * ixv_if_register_vlan
1518 * Run via a vlan config EVENT, it enables us to use the
1519 * HW Filter table since we can get the vlan id. This just
1520 * creates the entry in the soft version of the VFTA, init
1521 * will repopulate the real table.
1522 ************************************************************************/
1524 ixv_if_register_vlan(if_ctx_t ctx, u16 vtag)
1526 struct adapter *adapter = iflib_get_softc(ctx);
1529 index = (vtag >> 5) & 0x7F;
1531 ixv_shadow_vfta[index] |= (1 << bit);
1532 ++adapter->num_vlans;
1533 } /* ixv_if_register_vlan */
1535 /************************************************************************
1536 * ixv_if_unregister_vlan
1538 * Run via a vlan unconfig EVENT, remove our entry
1540 ************************************************************************/
1542 ixv_if_unregister_vlan(if_ctx_t ctx, u16 vtag)
1544 struct adapter *adapter = iflib_get_softc(ctx);
1547 index = (vtag >> 5) & 0x7F;
1549 ixv_shadow_vfta[index] &= ~(1 << bit);
1550 --adapter->num_vlans;
1551 } /* ixv_if_unregister_vlan */
1553 /************************************************************************
1554 * ixv_if_enable_intr
1555 ************************************************************************/
1557 ixv_if_enable_intr(if_ctx_t ctx)
1559 struct adapter *adapter = iflib_get_softc(ctx);
1560 struct ixgbe_hw *hw = &adapter->hw;
1561 struct ix_rx_queue *que = adapter->rx_queues;
1562 u32 mask = (IXGBE_EIMS_ENABLE_MASK & ~IXGBE_EIMS_RTX_QUEUE);
1564 IXGBE_WRITE_REG(hw, IXGBE_VTEIMS, mask);
1566 mask = IXGBE_EIMS_ENABLE_MASK;
1567 mask &= ~(IXGBE_EIMS_OTHER | IXGBE_EIMS_LSC);
1568 IXGBE_WRITE_REG(hw, IXGBE_VTEIAC, mask);
1570 for (int i = 0; i < adapter->num_rx_queues; i++, que++)
1571 ixv_enable_queue(adapter, que->msix);
1573 IXGBE_WRITE_FLUSH(hw);
1574 } /* ixv_if_enable_intr */
1576 /************************************************************************
1577 * ixv_if_disable_intr
1578 ************************************************************************/
1580 ixv_if_disable_intr(if_ctx_t ctx)
1582 struct adapter *adapter = iflib_get_softc(ctx);
1583 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VTEIAC, 0);
1584 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VTEIMC, ~0);
1585 IXGBE_WRITE_FLUSH(&adapter->hw);
1586 } /* ixv_if_disable_intr */
1588 /************************************************************************
1589 * ixv_if_rx_queue_intr_enable
1590 ************************************************************************/
1592 ixv_if_rx_queue_intr_enable(if_ctx_t ctx, uint16_t rxqid)
1594 struct adapter *adapter = iflib_get_softc(ctx);
1595 struct ix_rx_queue *que = &adapter->rx_queues[rxqid];
1597 ixv_enable_queue(adapter, que->rxr.me);
1600 } /* ixv_if_rx_queue_intr_enable */
1602 /************************************************************************
1605 * Setup the correct IVAR register for a particular MSI-X interrupt
1606 * - entry is the register array entry
1607 * - vector is the MSI-X vector for this queue
1608 * - type is RX/TX/MISC
1609 ************************************************************************/
1611 ixv_set_ivar(struct adapter *adapter, u8 entry, u8 vector, s8 type)
1613 struct ixgbe_hw *hw = &adapter->hw;
1616 vector |= IXGBE_IVAR_ALLOC_VAL;
1618 if (type == -1) { /* MISC IVAR */
1619 ivar = IXGBE_READ_REG(hw, IXGBE_VTIVAR_MISC);
1622 IXGBE_WRITE_REG(hw, IXGBE_VTIVAR_MISC, ivar);
1623 } else { /* RX/TX IVARS */
1624 index = (16 * (entry & 1)) + (8 * type);
1625 ivar = IXGBE_READ_REG(hw, IXGBE_VTIVAR(entry >> 1));
1626 ivar &= ~(0xFF << index);
1627 ivar |= (vector << index);
1628 IXGBE_WRITE_REG(hw, IXGBE_VTIVAR(entry >> 1), ivar);
1630 } /* ixv_set_ivar */
1632 /************************************************************************
1633 * ixv_configure_ivars
1634 ************************************************************************/
1636 ixv_configure_ivars(struct adapter *adapter)
1638 struct ix_rx_queue *que = adapter->rx_queues;
1640 MPASS(adapter->num_rx_queues == adapter->num_tx_queues);
1642 for (int i = 0; i < adapter->num_rx_queues; i++, que++) {
1643 /* First the RX queue entry */
1644 ixv_set_ivar(adapter, i, que->msix, 0);
1645 /* ... and the TX */
1646 ixv_set_ivar(adapter, i, que->msix, 1);
1647 /* Set an initial value in EITR */
1648 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VTEITR(que->msix),
1649 IXGBE_EITR_DEFAULT);
1652 /* For the mailbox interrupt */
1653 ixv_set_ivar(adapter, 1, adapter->vector, -1);
1654 } /* ixv_configure_ivars */
1656 /************************************************************************
1659 * The VF stats registers never have a truly virgin
1660 * starting point, so this routine tries to make an
1661 * artificial one, marking ground zero on attach as
1663 ************************************************************************/
1665 ixv_save_stats(struct adapter *adapter)
1667 if (adapter->stats.vf.vfgprc || adapter->stats.vf.vfgptc) {
1668 adapter->stats.vf.saved_reset_vfgprc +=
1669 adapter->stats.vf.vfgprc - adapter->stats.vf.base_vfgprc;
1670 adapter->stats.vf.saved_reset_vfgptc +=
1671 adapter->stats.vf.vfgptc - adapter->stats.vf.base_vfgptc;
1672 adapter->stats.vf.saved_reset_vfgorc +=
1673 adapter->stats.vf.vfgorc - adapter->stats.vf.base_vfgorc;
1674 adapter->stats.vf.saved_reset_vfgotc +=
1675 adapter->stats.vf.vfgotc - adapter->stats.vf.base_vfgotc;
1676 adapter->stats.vf.saved_reset_vfmprc +=
1677 adapter->stats.vf.vfmprc - adapter->stats.vf.base_vfmprc;
1679 } /* ixv_save_stats */
1681 /************************************************************************
1683 ************************************************************************/
1685 ixv_init_stats(struct adapter *adapter)
1687 struct ixgbe_hw *hw = &adapter->hw;
1689 adapter->stats.vf.last_vfgprc = IXGBE_READ_REG(hw, IXGBE_VFGPRC);
1690 adapter->stats.vf.last_vfgorc = IXGBE_READ_REG(hw, IXGBE_VFGORC_LSB);
1691 adapter->stats.vf.last_vfgorc |=
1692 (((u64)(IXGBE_READ_REG(hw, IXGBE_VFGORC_MSB))) << 32);
1694 adapter->stats.vf.last_vfgptc = IXGBE_READ_REG(hw, IXGBE_VFGPTC);
1695 adapter->stats.vf.last_vfgotc = IXGBE_READ_REG(hw, IXGBE_VFGOTC_LSB);
1696 adapter->stats.vf.last_vfgotc |=
1697 (((u64)(IXGBE_READ_REG(hw, IXGBE_VFGOTC_MSB))) << 32);
1699 adapter->stats.vf.last_vfmprc = IXGBE_READ_REG(hw, IXGBE_VFMPRC);
1701 adapter->stats.vf.base_vfgprc = adapter->stats.vf.last_vfgprc;
1702 adapter->stats.vf.base_vfgorc = adapter->stats.vf.last_vfgorc;
1703 adapter->stats.vf.base_vfgptc = adapter->stats.vf.last_vfgptc;
1704 adapter->stats.vf.base_vfgotc = adapter->stats.vf.last_vfgotc;
1705 adapter->stats.vf.base_vfmprc = adapter->stats.vf.last_vfmprc;
1706 } /* ixv_init_stats */
1708 #define UPDATE_STAT_32(reg, last, count) \
1710 u32 current = IXGBE_READ_REG(hw, reg); \
1711 if (current < last) \
1712 count += 0x100000000LL; \
1714 count &= 0xFFFFFFFF00000000LL; \
1718 #define UPDATE_STAT_36(lsb, msb, last, count) \
1720 u64 cur_lsb = IXGBE_READ_REG(hw, lsb); \
1721 u64 cur_msb = IXGBE_READ_REG(hw, msb); \
1722 u64 current = ((cur_msb << 32) | cur_lsb); \
1723 if (current < last) \
1724 count += 0x1000000000LL; \
1726 count &= 0xFFFFFFF000000000LL; \
1730 /************************************************************************
1731 * ixv_update_stats - Update the board statistics counters.
1732 ************************************************************************/
1734 ixv_update_stats(struct adapter *adapter)
1736 struct ixgbe_hw *hw = &adapter->hw;
1737 struct ixgbevf_hw_stats *stats = &adapter->stats.vf;
1739 UPDATE_STAT_32(IXGBE_VFGPRC, adapter->stats.vf.last_vfgprc,
1740 adapter->stats.vf.vfgprc);
1741 UPDATE_STAT_32(IXGBE_VFGPTC, adapter->stats.vf.last_vfgptc,
1742 adapter->stats.vf.vfgptc);
1743 UPDATE_STAT_36(IXGBE_VFGORC_LSB, IXGBE_VFGORC_MSB,
1744 adapter->stats.vf.last_vfgorc, adapter->stats.vf.vfgorc);
1745 UPDATE_STAT_36(IXGBE_VFGOTC_LSB, IXGBE_VFGOTC_MSB,
1746 adapter->stats.vf.last_vfgotc, adapter->stats.vf.vfgotc);
1747 UPDATE_STAT_32(IXGBE_VFMPRC, adapter->stats.vf.last_vfmprc,
1748 adapter->stats.vf.vfmprc);
1750 /* Fill out the OS statistics structure */
1751 IXGBE_SET_IPACKETS(adapter, stats->vfgprc);
1752 IXGBE_SET_OPACKETS(adapter, stats->vfgptc);
1753 IXGBE_SET_IBYTES(adapter, stats->vfgorc);
1754 IXGBE_SET_OBYTES(adapter, stats->vfgotc);
1755 IXGBE_SET_IMCASTS(adapter, stats->vfmprc);
1756 } /* ixv_update_stats */
1758 /************************************************************************
1759 * ixv_add_stats_sysctls - Add statistic sysctls for the VF.
1760 ************************************************************************/
1762 ixv_add_stats_sysctls(struct adapter *adapter)
1764 device_t dev = adapter->dev;
1765 struct ix_tx_queue *tx_que = adapter->tx_queues;
1766 struct ix_rx_queue *rx_que = adapter->rx_queues;
1767 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(dev);
1768 struct sysctl_oid *tree = device_get_sysctl_tree(dev);
1769 struct sysctl_oid_list *child = SYSCTL_CHILDREN(tree);
1770 struct ixgbevf_hw_stats *stats = &adapter->stats.vf;
1771 struct sysctl_oid *stat_node, *queue_node;
1772 struct sysctl_oid_list *stat_list, *queue_list;
1774 #define QUEUE_NAME_LEN 32
1775 char namebuf[QUEUE_NAME_LEN];
1777 /* Driver Statistics */
1778 SYSCTL_ADD_ULONG(ctx, child, OID_AUTO, "watchdog_events",
1779 CTLFLAG_RD, &adapter->watchdog_events, "Watchdog timeouts");
1780 SYSCTL_ADD_ULONG(ctx, child, OID_AUTO, "link_irq",
1781 CTLFLAG_RD, &adapter->link_irq, "Link MSI-X IRQ Handled");
1783 for (int i = 0; i < adapter->num_tx_queues; i++, tx_que++) {
1784 struct tx_ring *txr = &tx_que->txr;
1785 snprintf(namebuf, QUEUE_NAME_LEN, "queue%d", i);
1786 queue_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, namebuf,
1787 CTLFLAG_RD, NULL, "Queue Name");
1788 queue_list = SYSCTL_CHILDREN(queue_node);
1790 SYSCTL_ADD_UQUAD(ctx, queue_list, OID_AUTO, "tso_tx",
1791 CTLFLAG_RD, &(txr->tso_tx), "TSO Packets");
1792 SYSCTL_ADD_UQUAD(ctx, queue_list, OID_AUTO, "tx_packets",
1793 CTLFLAG_RD, &(txr->total_packets), "TX Packets");
1796 for (int i = 0; i < adapter->num_rx_queues; i++, rx_que++) {
1797 struct rx_ring *rxr = &rx_que->rxr;
1798 snprintf(namebuf, QUEUE_NAME_LEN, "queue%d", i);
1799 queue_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, namebuf,
1800 CTLFLAG_RD, NULL, "Queue Name");
1801 queue_list = SYSCTL_CHILDREN(queue_node);
1803 SYSCTL_ADD_UQUAD(ctx, queue_list, OID_AUTO, "irqs",
1804 CTLFLAG_RD, &(rx_que->irqs), "IRQs on queue");
1805 SYSCTL_ADD_UQUAD(ctx, queue_list, OID_AUTO, "rx_packets",
1806 CTLFLAG_RD, &(rxr->rx_packets), "RX packets");
1807 SYSCTL_ADD_UQUAD(ctx, queue_list, OID_AUTO, "rx_bytes",
1808 CTLFLAG_RD, &(rxr->rx_bytes), "RX bytes");
1809 SYSCTL_ADD_UQUAD(ctx, queue_list, OID_AUTO, "rx_discarded",
1810 CTLFLAG_RD, &(rxr->rx_discarded), "Discarded RX packets");
1813 stat_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "mac",
1814 CTLFLAG_RD, NULL, "VF Statistics (read from HW registers)");
1815 stat_list = SYSCTL_CHILDREN(stat_node);
1817 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "good_pkts_rcvd",
1818 CTLFLAG_RD, &stats->vfgprc, "Good Packets Received");
1819 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "good_octets_rcvd",
1820 CTLFLAG_RD, &stats->vfgorc, "Good Octets Received");
1821 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "mcast_pkts_rcvd",
1822 CTLFLAG_RD, &stats->vfmprc, "Multicast Packets Received");
1823 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "good_pkts_txd",
1824 CTLFLAG_RD, &stats->vfgptc, "Good Packets Transmitted");
1825 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "good_octets_txd",
1826 CTLFLAG_RD, &stats->vfgotc, "Good Octets Transmitted");
1827 } /* ixv_add_stats_sysctls */
1829 /************************************************************************
1830 * ixv_print_debug_info
1832 * Called only when em_display_debug_stats is enabled.
1833 * Provides a way to take a look at important statistics
1834 * maintained by the driver and hardware.
1835 ************************************************************************/
1837 ixv_print_debug_info(struct adapter *adapter)
1839 device_t dev = adapter->dev;
1840 struct ixgbe_hw *hw = &adapter->hw;
1842 device_printf(dev, "Error Byte Count = %u \n",
1843 IXGBE_READ_REG(hw, IXGBE_ERRBC));
1845 device_printf(dev, "MBX IRQ Handled: %lu\n", (long)adapter->link_irq);
1846 } /* ixv_print_debug_info */
1848 /************************************************************************
1850 ************************************************************************/
1852 ixv_sysctl_debug(SYSCTL_HANDLER_ARGS)
1854 struct adapter *adapter;
1858 error = sysctl_handle_int(oidp, &result, 0, req);
1860 if (error || !req->newptr)
1864 adapter = (struct adapter *)arg1;
1865 ixv_print_debug_info(adapter);
1869 } /* ixv_sysctl_debug */
1871 /************************************************************************
1872 * ixv_init_device_features
1873 ************************************************************************/
1875 ixv_init_device_features(struct adapter *adapter)
1877 adapter->feat_cap = IXGBE_FEATURE_NETMAP
1880 | IXGBE_FEATURE_LEGACY_TX;
1882 /* A tad short on feature flags for VFs, atm. */
1883 switch (adapter->hw.mac.type) {
1884 case ixgbe_mac_82599_vf:
1886 case ixgbe_mac_X540_vf:
1888 case ixgbe_mac_X550_vf:
1889 case ixgbe_mac_X550EM_x_vf:
1890 case ixgbe_mac_X550EM_a_vf:
1891 adapter->feat_cap |= IXGBE_FEATURE_NEEDS_CTXD;
1897 /* Enabled by default... */
1898 /* Is a virtual function (VF) */
1899 if (adapter->feat_cap & IXGBE_FEATURE_VF)
1900 adapter->feat_en |= IXGBE_FEATURE_VF;
1902 if (adapter->feat_cap & IXGBE_FEATURE_NETMAP)
1903 adapter->feat_en |= IXGBE_FEATURE_NETMAP;
1904 /* Receive-Side Scaling (RSS) */
1905 if (adapter->feat_cap & IXGBE_FEATURE_RSS)
1906 adapter->feat_en |= IXGBE_FEATURE_RSS;
1907 /* Needs advanced context descriptor regardless of offloads req'd */
1908 if (adapter->feat_cap & IXGBE_FEATURE_NEEDS_CTXD)
1909 adapter->feat_en |= IXGBE_FEATURE_NEEDS_CTXD;
1910 } /* ixv_init_device_features */