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[] = "2.0.1-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 IFLIB_PNP_INFO(pci, ixv_driver, ixv_vendor_info_array);
147 MODULE_DEPEND(ixv, pci, 1, 1, 1);
148 MODULE_DEPEND(ixv, ether, 1, 1, 1);
150 MODULE_DEPEND(ixv, netmap, 1, 1, 1);
151 #endif /* DEV_NETMAP */
153 static device_method_t ixv_if_methods[] = {
154 DEVMETHOD(ifdi_attach_pre, ixv_if_attach_pre),
155 DEVMETHOD(ifdi_attach_post, ixv_if_attach_post),
156 DEVMETHOD(ifdi_detach, ixv_if_detach),
157 DEVMETHOD(ifdi_init, ixv_if_init),
158 DEVMETHOD(ifdi_stop, ixv_if_stop),
159 DEVMETHOD(ifdi_msix_intr_assign, ixv_if_msix_intr_assign),
160 DEVMETHOD(ifdi_intr_enable, ixv_if_enable_intr),
161 DEVMETHOD(ifdi_intr_disable, ixv_if_disable_intr),
162 DEVMETHOD(ifdi_tx_queue_intr_enable, ixv_if_rx_queue_intr_enable),
163 DEVMETHOD(ifdi_rx_queue_intr_enable, ixv_if_rx_queue_intr_enable),
164 DEVMETHOD(ifdi_tx_queues_alloc, ixv_if_tx_queues_alloc),
165 DEVMETHOD(ifdi_rx_queues_alloc, ixv_if_rx_queues_alloc),
166 DEVMETHOD(ifdi_queues_free, ixv_if_queues_free),
167 DEVMETHOD(ifdi_update_admin_status, ixv_if_update_admin_status),
168 DEVMETHOD(ifdi_multi_set, ixv_if_multi_set),
169 DEVMETHOD(ifdi_mtu_set, ixv_if_mtu_set),
170 DEVMETHOD(ifdi_media_status, ixv_if_media_status),
171 DEVMETHOD(ifdi_media_change, ixv_if_media_change),
172 DEVMETHOD(ifdi_timer, ixv_if_local_timer),
173 DEVMETHOD(ifdi_vlan_register, ixv_if_register_vlan),
174 DEVMETHOD(ifdi_vlan_unregister, ixv_if_unregister_vlan),
175 DEVMETHOD(ifdi_get_counter, ixv_if_get_counter),
179 static driver_t ixv_if_driver = {
180 "ixv_if", ixv_if_methods, sizeof(struct adapter)
184 * TUNEABLE PARAMETERS:
187 /* Flow control setting, default to full */
188 static int ixv_flow_control = ixgbe_fc_full;
189 TUNABLE_INT("hw.ixv.flow_control", &ixv_flow_control);
192 * Header split: this causes the hardware to DMA
193 * the header into a separate mbuf from the payload,
194 * it can be a performance win in some workloads, but
195 * in others it actually hurts, its off by default.
197 static int ixv_header_split = FALSE;
198 TUNABLE_INT("hw.ixv.hdr_split", &ixv_header_split);
201 * Shadow VFTA table, this is needed because
202 * the real filter table gets cleared during
203 * a soft reset and we need to repopulate it.
205 static u32 ixv_shadow_vfta[IXGBE_VFTA_SIZE];
206 extern struct if_txrx ixgbe_txrx;
208 static struct if_shared_ctx ixv_sctx_init = {
209 .isc_magic = IFLIB_MAGIC,
210 .isc_q_align = PAGE_SIZE,/* max(DBA_ALIGN, PAGE_SIZE) */
211 .isc_tx_maxsize = IXGBE_TSO_SIZE + sizeof(struct ether_vlan_header),
212 .isc_tx_maxsegsize = PAGE_SIZE,
213 .isc_tso_maxsize = IXGBE_TSO_SIZE + sizeof(struct ether_vlan_header),
214 .isc_tso_maxsegsize = PAGE_SIZE,
215 .isc_rx_maxsize = MJUM16BYTES,
216 .isc_rx_nsegments = 1,
217 .isc_rx_maxsegsize = MJUM16BYTES,
221 .isc_admin_intrcnt = 1,
222 .isc_vendor_info = ixv_vendor_info_array,
223 .isc_driver_version = ixv_driver_version,
224 .isc_driver = &ixv_if_driver,
226 .isc_nrxd_min = {MIN_RXD},
227 .isc_ntxd_min = {MIN_TXD},
228 .isc_nrxd_max = {MAX_RXD},
229 .isc_ntxd_max = {MAX_TXD},
230 .isc_nrxd_default = {DEFAULT_RXD},
231 .isc_ntxd_default = {DEFAULT_TXD},
234 if_shared_ctx_t ixv_sctx = &ixv_sctx_init;
237 ixv_register(device_t dev)
242 /************************************************************************
243 * ixv_if_tx_queues_alloc
244 ************************************************************************/
246 ixv_if_tx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs,
247 int ntxqs, int ntxqsets)
249 struct adapter *adapter = iflib_get_softc(ctx);
250 if_softc_ctx_t scctx = adapter->shared;
251 struct ix_tx_queue *que;
254 MPASS(adapter->num_tx_queues == ntxqsets);
257 /* Allocate queue structure memory */
259 (struct ix_tx_queue *)malloc(sizeof(struct ix_tx_queue) * ntxqsets,
260 M_DEVBUF, M_NOWAIT | M_ZERO);
261 if (!adapter->tx_queues) {
262 device_printf(iflib_get_dev(ctx),
263 "Unable to allocate TX ring memory\n");
267 for (i = 0, que = adapter->tx_queues; i < ntxqsets; i++, que++) {
268 struct tx_ring *txr = &que->txr;
271 txr->adapter = que->adapter = adapter;
272 adapter->active_queues |= (u64)1 << txr->me;
274 /* Allocate report status array */
275 if (!(txr->tx_rsq = (qidx_t *)malloc(sizeof(qidx_t) * scctx->isc_ntxd[0], M_DEVBUF, M_NOWAIT | M_ZERO))) {
279 for (j = 0; j < scctx->isc_ntxd[0]; j++)
280 txr->tx_rsq[j] = QIDX_INVALID;
281 /* get the virtual and physical address of the hardware queues */
282 txr->tail = IXGBE_VFTDT(txr->me);
283 txr->tx_base = (union ixgbe_adv_tx_desc *)vaddrs[i*ntxqs];
284 txr->tx_paddr = paddrs[i*ntxqs];
287 txr->total_packets = 0;
291 device_printf(iflib_get_dev(ctx), "allocated for %d queues\n",
292 adapter->num_tx_queues);
297 ixv_if_queues_free(ctx);
300 } /* ixv_if_tx_queues_alloc */
302 /************************************************************************
303 * ixv_if_rx_queues_alloc
304 ************************************************************************/
306 ixv_if_rx_queues_alloc(if_ctx_t ctx, caddr_t *vaddrs, uint64_t *paddrs,
307 int nrxqs, int nrxqsets)
309 struct adapter *adapter = iflib_get_softc(ctx);
310 struct ix_rx_queue *que;
313 MPASS(adapter->num_rx_queues == nrxqsets);
316 /* Allocate queue structure memory */
318 (struct ix_rx_queue *)malloc(sizeof(struct ix_rx_queue) * nrxqsets,
319 M_DEVBUF, M_NOWAIT | M_ZERO);
320 if (!adapter->rx_queues) {
321 device_printf(iflib_get_dev(ctx),
322 "Unable to allocate TX ring memory\n");
327 for (i = 0, que = adapter->rx_queues; i < nrxqsets; i++, que++) {
328 struct rx_ring *rxr = &que->rxr;
330 rxr->adapter = que->adapter = adapter;
333 /* get the virtual and physical address of the hw queues */
334 rxr->tail = IXGBE_VFRDT(rxr->me);
335 rxr->rx_base = (union ixgbe_adv_rx_desc *)vaddrs[i];
336 rxr->rx_paddr = paddrs[i*nrxqs];
341 device_printf(iflib_get_dev(ctx), "allocated for %d rx queues\n",
342 adapter->num_rx_queues);
347 ixv_if_queues_free(ctx);
350 } /* ixv_if_rx_queues_alloc */
352 /************************************************************************
354 ************************************************************************/
356 ixv_if_queues_free(if_ctx_t ctx)
358 struct adapter *adapter = iflib_get_softc(ctx);
359 struct ix_tx_queue *que = adapter->tx_queues;
365 for (i = 0; i < adapter->num_tx_queues; i++, que++) {
366 struct tx_ring *txr = &que->txr;
367 if (txr->tx_rsq == NULL)
370 free(txr->tx_rsq, M_DEVBUF);
373 if (adapter->tx_queues != NULL)
374 free(adapter->tx_queues, M_DEVBUF);
376 if (adapter->rx_queues != NULL)
377 free(adapter->rx_queues, M_DEVBUF);
378 adapter->tx_queues = NULL;
379 adapter->rx_queues = NULL;
380 } /* ixv_if_queues_free */
382 /************************************************************************
383 * ixv_if_attach_pre - Device initialization routine
385 * Called when the driver is being loaded.
386 * Identifies the type of hardware, allocates all resources
387 * and initializes the hardware.
389 * return 0 on success, positive on failure
390 ************************************************************************/
392 ixv_if_attach_pre(if_ctx_t ctx)
394 struct adapter *adapter;
396 if_softc_ctx_t scctx;
400 INIT_DEBUGOUT("ixv_attach: begin");
402 /* Allocate, clear, and link in our adapter structure */
403 dev = iflib_get_dev(ctx);
404 adapter = iflib_get_softc(ctx);
407 adapter->hw.back = adapter;
408 scctx = adapter->shared = iflib_get_softc_ctx(ctx);
409 adapter->media = iflib_get_media(ctx);
412 /* Do base PCI setup - map BAR0 */
413 if (ixv_allocate_pci_resources(ctx)) {
414 device_printf(dev, "ixv_allocate_pci_resources() failed!\n");
420 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
421 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), OID_AUTO, "debug",
422 CTLTYPE_INT | CTLFLAG_RW, adapter, 0, ixv_sysctl_debug, "I",
425 /* Determine hardware revision */
426 ixv_identify_hardware(ctx);
427 ixv_init_device_features(adapter);
429 /* Initialize the shared code */
430 error = ixgbe_init_ops_vf(hw);
432 device_printf(dev, "ixgbe_init_ops_vf() failed!\n");
437 /* Setup the mailbox */
438 ixgbe_init_mbx_params_vf(hw);
440 error = hw->mac.ops.reset_hw(hw);
441 if (error == IXGBE_ERR_RESET_FAILED)
442 device_printf(dev, "...reset_hw() failure: Reset Failed!\n");
444 device_printf(dev, "...reset_hw() failed with error %d\n",
451 error = hw->mac.ops.init_hw(hw);
453 device_printf(dev, "...init_hw() failed with error %d\n",
459 /* Negotiate mailbox API version */
460 error = ixv_negotiate_api(adapter);
463 "Mailbox API negotiation failed during attach!\n");
467 /* If no mac address was assigned, make a random one */
468 if (!ixv_check_ether_addr(hw->mac.addr)) {
469 u8 addr[ETHER_ADDR_LEN];
470 arc4rand(&addr, sizeof(addr), 0);
473 bcopy(addr, hw->mac.addr, sizeof(addr));
474 bcopy(addr, hw->mac.perm_addr, sizeof(addr));
477 /* Most of the iflib initialization... */
479 iflib_set_mac(ctx, hw->mac.addr);
480 switch (adapter->hw.mac.type) {
481 case ixgbe_mac_X550_vf:
482 case ixgbe_mac_X550EM_x_vf:
483 case ixgbe_mac_X550EM_a_vf:
484 scctx->isc_ntxqsets_max = scctx->isc_nrxqsets_max = 2;
487 scctx->isc_ntxqsets_max = scctx->isc_nrxqsets_max = 1;
489 scctx->isc_txqsizes[0] =
490 roundup2(scctx->isc_ntxd[0] * sizeof(union ixgbe_adv_tx_desc) +
491 sizeof(u32), DBA_ALIGN);
492 scctx->isc_rxqsizes[0] =
493 roundup2(scctx->isc_nrxd[0] * sizeof(union ixgbe_adv_rx_desc),
496 scctx->isc_tx_csum_flags = CSUM_IP | CSUM_TCP | CSUM_UDP | CSUM_TSO |
497 CSUM_IP6_TCP | CSUM_IP6_UDP | CSUM_IP6_TSO;
498 scctx->isc_tx_nsegments = IXGBE_82599_SCATTER;
499 scctx->isc_msix_bar = PCIR_BAR(MSIX_82598_BAR);
500 scctx->isc_tx_tso_segments_max = scctx->isc_tx_nsegments;
501 scctx->isc_tx_tso_size_max = IXGBE_TSO_SIZE;
502 scctx->isc_tx_tso_segsize_max = PAGE_SIZE;
504 scctx->isc_txrx = &ixgbe_txrx;
507 * Tell the upper layer(s) we support everything the PF
508 * driver does except...
511 scctx->isc_capabilities = IXGBE_CAPS;
512 scctx->isc_capabilities ^= IFCAP_WOL;
513 scctx->isc_capenable = scctx->isc_capabilities;
515 INIT_DEBUGOUT("ixv_if_attach_pre: end");
520 ixv_free_pci_resources(ctx);
523 } /* ixv_if_attach_pre */
526 ixv_if_attach_post(if_ctx_t ctx)
528 struct adapter *adapter = iflib_get_softc(ctx);
529 device_t dev = iflib_get_dev(ctx);
532 /* Setup OS specific network interface */
533 error = ixv_setup_interface(ctx);
535 device_printf(dev, "Interface setup failed: %d\n", error);
539 /* Do the stats setup */
540 ixv_save_stats(adapter);
541 ixv_init_stats(adapter);
542 ixv_add_stats_sysctls(adapter);
546 } /* ixv_if_attach_post */
548 /************************************************************************
549 * ixv_detach - Device removal routine
551 * Called when the driver is being removed.
552 * Stops the adapter and deallocates all the resources
553 * that were allocated for driver operation.
555 * return 0 on success, positive on failure
556 ************************************************************************/
558 ixv_if_detach(if_ctx_t ctx)
560 INIT_DEBUGOUT("ixv_detach: begin");
562 ixv_free_pci_resources(ctx);
565 } /* ixv_if_detach */
567 /************************************************************************
569 ************************************************************************/
571 ixv_if_mtu_set(if_ctx_t ctx, uint32_t mtu)
573 struct adapter *adapter = iflib_get_softc(ctx);
574 struct ifnet *ifp = iflib_get_ifp(ctx);
577 IOCTL_DEBUGOUT("ioctl: SIOCSIFMTU (Set Interface MTU)");
578 if (mtu > IXGBE_MAX_FRAME_SIZE - IXGBE_MTU_HDR) {
582 adapter->max_frame_size = ifp->if_mtu + IXGBE_MTU_HDR;
586 } /* ixv_if_mtu_set */
588 /************************************************************************
589 * ixv_if_init - Init entry point
591 * Used in two ways: It is used by the stack as an init entry
592 * point in network interface structure. It is also used
593 * by the driver as a hw/sw initialization routine to get
594 * to a consistent state.
596 * return 0 on success, positive on failure
597 ************************************************************************/
599 ixv_if_init(if_ctx_t ctx)
601 struct adapter *adapter = iflib_get_softc(ctx);
602 struct ifnet *ifp = iflib_get_ifp(ctx);
603 device_t dev = iflib_get_dev(ctx);
604 struct ixgbe_hw *hw = &adapter->hw;
607 INIT_DEBUGOUT("ixv_if_init: begin");
608 hw->adapter_stopped = FALSE;
609 hw->mac.ops.stop_adapter(hw);
611 /* reprogram the RAR[0] in case user changed it. */
612 hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0, IXGBE_RAH_AV);
614 /* Get the latest mac address, User can use a LAA */
615 bcopy(IF_LLADDR(ifp), hw->mac.addr, IXGBE_ETH_LENGTH_OF_ADDRESS);
616 hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0, 1);
618 /* Reset VF and renegotiate mailbox API version */
619 hw->mac.ops.reset_hw(hw);
620 hw->mac.ops.start_hw(hw);
621 error = ixv_negotiate_api(adapter);
624 "Mailbox API negotiation failed in if_init!\n");
628 ixv_initialize_transmit_units(ctx);
630 /* Setup Multicast table */
631 ixv_if_multi_set(ctx);
634 * Determine the correct mbuf pool
635 * for doing jumbo/headersplit
637 if (ifp->if_mtu > ETHERMTU)
638 adapter->rx_mbuf_sz = MJUMPAGESIZE;
640 adapter->rx_mbuf_sz = MCLBYTES;
642 /* Configure RX settings */
643 ixv_initialize_receive_units(ctx);
645 /* Set up VLAN offload and filter */
646 ixv_setup_vlan_support(ctx);
648 /* Set up MSI-X routing */
649 ixv_configure_ivars(adapter);
651 /* Set up auto-mask */
652 IXGBE_WRITE_REG(hw, IXGBE_VTEIAM, IXGBE_EICS_RTX_QUEUE);
654 /* Set moderation on the Link interrupt */
655 IXGBE_WRITE_REG(hw, IXGBE_VTEITR(adapter->vector), IXGBE_LINK_ITR);
658 ixv_init_stats(adapter);
660 /* Config/Enable Link */
661 hw->mac.ops.check_link(hw, &adapter->link_speed, &adapter->link_up,
664 /* And now turn on interrupts */
665 ixv_if_enable_intr(ctx);
670 /************************************************************************
672 ************************************************************************/
674 ixv_enable_queue(struct adapter *adapter, u32 vector)
676 struct ixgbe_hw *hw = &adapter->hw;
677 u32 queue = 1 << vector;
680 mask = (IXGBE_EIMS_RTX_QUEUE & queue);
681 IXGBE_WRITE_REG(hw, IXGBE_VTEIMS, mask);
682 } /* ixv_enable_queue */
684 /************************************************************************
686 ************************************************************************/
688 ixv_disable_queue(struct adapter *adapter, u32 vector)
690 struct ixgbe_hw *hw = &adapter->hw;
691 u64 queue = (u64)(1 << vector);
694 mask = (IXGBE_EIMS_RTX_QUEUE & queue);
695 IXGBE_WRITE_REG(hw, IXGBE_VTEIMC, mask);
696 } /* ixv_disable_queue */
699 /************************************************************************
700 * ixv_msix_que - MSI-X Queue Interrupt Service routine
701 ************************************************************************/
703 ixv_msix_que(void *arg)
705 struct ix_rx_queue *que = arg;
706 struct adapter *adapter = que->adapter;
708 ixv_disable_queue(adapter, que->msix);
711 return (FILTER_SCHEDULE_THREAD);
714 /************************************************************************
716 ************************************************************************/
718 ixv_msix_mbx(void *arg)
720 struct adapter *adapter = arg;
721 struct ixgbe_hw *hw = &adapter->hw;
726 /* First get the cause */
727 reg = IXGBE_READ_REG(hw, IXGBE_VTEICS);
728 /* Clear interrupt with write */
729 IXGBE_WRITE_REG(hw, IXGBE_VTEICR, reg);
731 /* Link status change */
732 if (reg & IXGBE_EICR_LSC)
733 iflib_admin_intr_deferred(adapter->ctx);
735 IXGBE_WRITE_REG(hw, IXGBE_VTEIMS, IXGBE_EIMS_OTHER);
737 return (FILTER_HANDLED);
740 /************************************************************************
741 * ixv_media_status - Media Ioctl callback
743 * Called whenever the user queries the status of
744 * the interface using ifconfig.
745 ************************************************************************/
747 ixv_if_media_status(if_ctx_t ctx, struct ifmediareq * ifmr)
749 struct adapter *adapter = iflib_get_softc(ctx);
751 INIT_DEBUGOUT("ixv_media_status: begin");
753 iflib_admin_intr_deferred(ctx);
755 ifmr->ifm_status = IFM_AVALID;
756 ifmr->ifm_active = IFM_ETHER;
758 if (!adapter->link_active)
761 ifmr->ifm_status |= IFM_ACTIVE;
763 switch (adapter->link_speed) {
764 case IXGBE_LINK_SPEED_1GB_FULL:
765 ifmr->ifm_active |= IFM_1000_T | IFM_FDX;
767 case IXGBE_LINK_SPEED_10GB_FULL:
768 ifmr->ifm_active |= IFM_10G_T | IFM_FDX;
770 case IXGBE_LINK_SPEED_100_FULL:
771 ifmr->ifm_active |= IFM_100_TX | IFM_FDX;
773 case IXGBE_LINK_SPEED_10_FULL:
774 ifmr->ifm_active |= IFM_10_T | IFM_FDX;
777 } /* ixv_if_media_status */
779 /************************************************************************
780 * ixv_if_media_change - Media Ioctl callback
782 * Called when the user changes speed/duplex using
783 * media/mediopt option with ifconfig.
784 ************************************************************************/
786 ixv_if_media_change(if_ctx_t ctx)
788 struct adapter *adapter = iflib_get_softc(ctx);
789 struct ifmedia *ifm = iflib_get_media(ctx);
791 INIT_DEBUGOUT("ixv_media_change: begin");
793 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER)
796 switch (IFM_SUBTYPE(ifm->ifm_media)) {
800 device_printf(adapter->dev, "Only auto media type\n");
805 } /* ixv_if_media_change */
808 /************************************************************************
811 * Negotiate the Mailbox API with the PF;
812 * start with the most featured API first.
813 ************************************************************************/
815 ixv_negotiate_api(struct adapter *adapter)
817 struct ixgbe_hw *hw = &adapter->hw;
818 int mbx_api[] = { ixgbe_mbox_api_11,
820 ixgbe_mbox_api_unknown };
823 while (mbx_api[i] != ixgbe_mbox_api_unknown) {
824 if (ixgbevf_negotiate_api_version(hw, mbx_api[i]) == 0)
830 } /* ixv_negotiate_api */
833 /************************************************************************
834 * ixv_if_multi_set - Multicast Update
836 * Called whenever multicast address list is updated.
837 ************************************************************************/
839 ixv_if_multi_set(if_ctx_t ctx)
841 u8 mta[MAX_NUM_MULTICAST_ADDRESSES * IXGBE_ETH_LENGTH_OF_ADDRESS];
842 struct adapter *adapter = iflib_get_softc(ctx);
844 struct ifmultiaddr *ifma;
845 if_t ifp = iflib_get_ifp(ctx);
848 IOCTL_DEBUGOUT("ixv_if_multi_set: begin");
850 CK_STAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) {
851 if (ifma->ifma_addr->sa_family != AF_LINK)
853 bcopy(LLADDR((struct sockaddr_dl *)ifma->ifma_addr),
854 &mta[mcnt * IXGBE_ETH_LENGTH_OF_ADDRESS],
855 IXGBE_ETH_LENGTH_OF_ADDRESS);
861 adapter->hw.mac.ops.update_mc_addr_list(&adapter->hw, update_ptr, mcnt,
862 ixv_mc_array_itr, TRUE);
863 } /* ixv_if_multi_set */
865 /************************************************************************
868 * An iterator function needed by the multicast shared code.
869 * It feeds the shared code routine the addresses in the
870 * array of ixv_set_multi() one by one.
871 ************************************************************************/
873 ixv_mc_array_itr(struct ixgbe_hw *hw, u8 **update_ptr, u32 *vmdq)
875 u8 *addr = *update_ptr;
880 newptr = addr + IXGBE_ETH_LENGTH_OF_ADDRESS;
881 *update_ptr = newptr;
884 } /* ixv_mc_array_itr */
886 /************************************************************************
887 * ixv_if_local_timer - Timer routine
889 * Checks for link status, updates statistics,
890 * and runs the watchdog check.
891 ************************************************************************/
893 ixv_if_local_timer(if_ctx_t ctx, uint16_t qid)
898 /* Fire off the adminq task */
899 iflib_admin_intr_deferred(ctx);
900 } /* ixv_if_local_timer */
902 /************************************************************************
903 * ixv_if_update_admin_status - Update OS on link state
905 * Note: Only updates the OS on the cached link state.
906 * The real check of the hardware only happens with
908 ************************************************************************/
910 ixv_if_update_admin_status(if_ctx_t ctx)
912 struct adapter *adapter = iflib_get_softc(ctx);
913 device_t dev = iflib_get_dev(ctx);
916 adapter->hw.mac.get_link_status = TRUE;
918 status = ixgbe_check_link(&adapter->hw, &adapter->link_speed,
919 &adapter->link_up, FALSE);
921 if (status != IXGBE_SUCCESS && adapter->hw.adapter_stopped == FALSE) {
922 /* Mailbox's Clear To Send status is lost or timeout occurred.
923 * We need reinitialization. */
924 iflib_get_ifp(ctx)->if_init(ctx);
927 if (adapter->link_up) {
928 if (adapter->link_active == FALSE) {
930 device_printf(dev, "Link is up %d Gbps %s \n",
931 ((adapter->link_speed == 128) ? 10 : 1),
933 adapter->link_active = TRUE;
934 iflib_link_state_change(ctx, LINK_STATE_UP,
937 } else { /* Link down */
938 if (adapter->link_active == TRUE) {
940 device_printf(dev, "Link is Down\n");
941 iflib_link_state_change(ctx, LINK_STATE_DOWN, 0);
942 adapter->link_active = FALSE;
947 ixv_update_stats(adapter);
948 } /* ixv_if_update_admin_status */
951 /************************************************************************
952 * ixv_if_stop - Stop the hardware
954 * Disables all traffic on the adapter by issuing a
955 * global reset on the MAC and deallocates TX/RX buffers.
956 ************************************************************************/
958 ixv_if_stop(if_ctx_t ctx)
960 struct adapter *adapter = iflib_get_softc(ctx);
961 struct ixgbe_hw *hw = &adapter->hw;
963 INIT_DEBUGOUT("ixv_stop: begin\n");
965 ixv_if_disable_intr(ctx);
967 hw->mac.ops.reset_hw(hw);
968 adapter->hw.adapter_stopped = FALSE;
969 hw->mac.ops.stop_adapter(hw);
971 /* Update the stack */
972 adapter->link_up = FALSE;
973 ixv_if_update_admin_status(ctx);
975 /* reprogram the RAR[0] in case user changed it. */
976 hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0, IXGBE_RAH_AV);
980 /************************************************************************
981 * ixv_identify_hardware - Determine hardware revision.
982 ************************************************************************/
984 ixv_identify_hardware(if_ctx_t ctx)
986 struct adapter *adapter = iflib_get_softc(ctx);
987 device_t dev = iflib_get_dev(ctx);
988 struct ixgbe_hw *hw = &adapter->hw;
990 /* Save off the information about this board */
991 hw->vendor_id = pci_get_vendor(dev);
992 hw->device_id = pci_get_device(dev);
993 hw->revision_id = pci_get_revid(dev);
994 hw->subsystem_vendor_id = pci_get_subvendor(dev);
995 hw->subsystem_device_id = pci_get_subdevice(dev);
997 /* A subset of set_mac_type */
998 switch (hw->device_id) {
999 case IXGBE_DEV_ID_82599_VF:
1000 hw->mac.type = ixgbe_mac_82599_vf;
1002 case IXGBE_DEV_ID_X540_VF:
1003 hw->mac.type = ixgbe_mac_X540_vf;
1005 case IXGBE_DEV_ID_X550_VF:
1006 hw->mac.type = ixgbe_mac_X550_vf;
1008 case IXGBE_DEV_ID_X550EM_X_VF:
1009 hw->mac.type = ixgbe_mac_X550EM_x_vf;
1011 case IXGBE_DEV_ID_X550EM_A_VF:
1012 hw->mac.type = ixgbe_mac_X550EM_a_vf;
1015 device_printf(dev, "unknown mac type\n");
1016 hw->mac.type = ixgbe_mac_unknown;
1019 } /* ixv_identify_hardware */
1021 /************************************************************************
1022 * ixv_if_msix_intr_assign - Setup MSI-X Interrupt resources and handlers
1023 ************************************************************************/
1025 ixv_if_msix_intr_assign(if_ctx_t ctx, int msix)
1027 struct adapter *adapter = iflib_get_softc(ctx);
1028 device_t dev = iflib_get_dev(ctx);
1029 struct ix_rx_queue *rx_que = adapter->rx_queues;
1030 struct ix_tx_queue *tx_que;
1031 int error, rid, vector = 0;
1034 for (int i = 0; i < adapter->num_rx_queues; i++, vector++, rx_que++) {
1037 snprintf(buf, sizeof(buf), "rxq%d", i);
1038 error = iflib_irq_alloc_generic(ctx, &rx_que->que_irq, rid,
1039 IFLIB_INTR_RX, ixv_msix_que, rx_que, rx_que->rxr.me, buf);
1042 device_printf(iflib_get_dev(ctx),
1043 "Failed to allocate que int %d err: %d", i, error);
1044 adapter->num_rx_queues = i + 1;
1048 rx_que->msix = vector;
1049 adapter->active_queues |= (u64)(1 << rx_que->msix);
1053 for (int i = 0; i < adapter->num_tx_queues; i++) {
1054 snprintf(buf, sizeof(buf), "txq%d", i);
1055 tx_que = &adapter->tx_queues[i];
1056 tx_que->msix = i % adapter->num_rx_queues;
1057 iflib_softirq_alloc_generic(ctx,
1058 &adapter->rx_queues[tx_que->msix].que_irq,
1059 IFLIB_INTR_TX, tx_que, tx_que->txr.me, buf);
1062 error = iflib_irq_alloc_generic(ctx, &adapter->irq, rid,
1063 IFLIB_INTR_ADMIN, ixv_msix_mbx, adapter, 0, "aq");
1065 device_printf(iflib_get_dev(ctx),
1066 "Failed to register admin handler");
1070 adapter->vector = vector;
1072 * Due to a broken design QEMU will fail to properly
1073 * enable the guest for MSIX unless the vectors in
1074 * the table are all set up, so we must rewrite the
1075 * ENABLE in the MSIX control register again at this
1076 * point to cause it to successfully initialize us.
1078 if (adapter->hw.mac.type == ixgbe_mac_82599_vf) {
1080 pci_find_cap(dev, PCIY_MSIX, &rid);
1081 rid += PCIR_MSIX_CTRL;
1082 msix_ctrl = pci_read_config(dev, rid, 2);
1083 msix_ctrl |= PCIM_MSIXCTRL_MSIX_ENABLE;
1084 pci_write_config(dev, rid, msix_ctrl, 2);
1090 iflib_irq_free(ctx, &adapter->irq);
1091 rx_que = adapter->rx_queues;
1092 for (int i = 0; i < adapter->num_rx_queues; i++, rx_que++)
1093 iflib_irq_free(ctx, &rx_que->que_irq);
1096 } /* ixv_if_msix_intr_assign */
1098 /************************************************************************
1099 * ixv_allocate_pci_resources
1100 ************************************************************************/
1102 ixv_allocate_pci_resources(if_ctx_t ctx)
1104 struct adapter *adapter = iflib_get_softc(ctx);
1105 device_t dev = iflib_get_dev(ctx);
1109 adapter->pci_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,
1112 if (!(adapter->pci_mem)) {
1113 device_printf(dev, "Unable to allocate bus resource: memory\n");
1117 adapter->osdep.mem_bus_space_tag = rman_get_bustag(adapter->pci_mem);
1118 adapter->osdep.mem_bus_space_handle =
1119 rman_get_bushandle(adapter->pci_mem);
1120 adapter->hw.hw_addr = (u8 *)&adapter->osdep.mem_bus_space_handle;
1123 } /* ixv_allocate_pci_resources */
1125 /************************************************************************
1126 * ixv_free_pci_resources
1127 ************************************************************************/
1129 ixv_free_pci_resources(if_ctx_t ctx)
1131 struct adapter *adapter = iflib_get_softc(ctx);
1132 struct ix_rx_queue *que = adapter->rx_queues;
1133 device_t dev = iflib_get_dev(ctx);
1135 /* Release all msix queue resources */
1136 if (adapter->intr_type == IFLIB_INTR_MSIX)
1137 iflib_irq_free(ctx, &adapter->irq);
1140 for (int i = 0; i < adapter->num_rx_queues; i++, que++) {
1141 iflib_irq_free(ctx, &que->que_irq);
1145 /* Clean the Legacy or Link interrupt last */
1146 if (adapter->pci_mem != NULL)
1147 bus_release_resource(dev, SYS_RES_MEMORY,
1148 PCIR_BAR(0), adapter->pci_mem);
1149 } /* ixv_free_pci_resources */
1151 /************************************************************************
1152 * ixv_setup_interface
1154 * Setup networking device structure and register an interface.
1155 ************************************************************************/
1157 ixv_setup_interface(if_ctx_t ctx)
1159 struct adapter *adapter = iflib_get_softc(ctx);
1160 if_softc_ctx_t scctx = adapter->shared;
1161 struct ifnet *ifp = iflib_get_ifp(ctx);
1163 INIT_DEBUGOUT("ixv_setup_interface: begin");
1165 if_setbaudrate(ifp, IF_Gbps(10));
1166 ifp->if_snd.ifq_maxlen = scctx->isc_ntxd[0] - 2;
1169 adapter->max_frame_size = ifp->if_mtu + IXGBE_MTU_HDR;
1170 ifmedia_add(adapter->media, IFM_ETHER | IFM_AUTO, 0, NULL);
1171 ifmedia_set(adapter->media, IFM_ETHER | IFM_AUTO);
1174 } /* ixv_setup_interface */
1176 /************************************************************************
1177 * ixv_if_get_counter
1178 ************************************************************************/
1180 ixv_if_get_counter(if_ctx_t ctx, ift_counter cnt)
1182 struct adapter *adapter = iflib_get_softc(ctx);
1183 if_t ifp = iflib_get_ifp(ctx);
1186 case IFCOUNTER_IPACKETS:
1187 return (adapter->ipackets);
1188 case IFCOUNTER_OPACKETS:
1189 return (adapter->opackets);
1190 case IFCOUNTER_IBYTES:
1191 return (adapter->ibytes);
1192 case IFCOUNTER_OBYTES:
1193 return (adapter->obytes);
1194 case IFCOUNTER_IMCASTS:
1195 return (adapter->imcasts);
1197 return (if_get_counter_default(ifp, cnt));
1199 } /* ixv_if_get_counter */
1201 /************************************************************************
1202 * ixv_initialize_transmit_units - Enable transmit unit.
1203 ************************************************************************/
1205 ixv_initialize_transmit_units(if_ctx_t ctx)
1207 struct adapter *adapter = iflib_get_softc(ctx);
1208 struct ixgbe_hw *hw = &adapter->hw;
1209 if_softc_ctx_t scctx = adapter->shared;
1210 struct ix_tx_queue *que = adapter->tx_queues;
1213 for (i = 0; i < adapter->num_tx_queues; i++, que++) {
1214 struct tx_ring *txr = &que->txr;
1215 u64 tdba = txr->tx_paddr;
1219 /* Set WTHRESH to 8, burst writeback */
1220 txdctl = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(j));
1221 txdctl |= (8 << 16);
1222 IXGBE_WRITE_REG(hw, IXGBE_VFTXDCTL(j), txdctl);
1224 /* Set the HW Tx Head and Tail indices */
1225 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VFTDH(j), 0);
1226 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VFTDT(j), 0);
1228 /* Set Tx Tail register */
1229 txr->tail = IXGBE_VFTDT(j);
1231 txr->tx_rs_cidx = txr->tx_rs_pidx = txr->tx_cidx_processed = 0;
1232 for (int k = 0; k < scctx->isc_ntxd[0]; k++)
1233 txr->tx_rsq[k] = QIDX_INVALID;
1235 /* Set Ring parameters */
1236 IXGBE_WRITE_REG(hw, IXGBE_VFTDBAL(j),
1237 (tdba & 0x00000000ffffffffULL));
1238 IXGBE_WRITE_REG(hw, IXGBE_VFTDBAH(j), (tdba >> 32));
1239 IXGBE_WRITE_REG(hw, IXGBE_VFTDLEN(j),
1240 scctx->isc_ntxd[0] * sizeof(struct ixgbe_legacy_tx_desc));
1241 txctrl = IXGBE_READ_REG(hw, IXGBE_VFDCA_TXCTRL(j));
1242 txctrl &= ~IXGBE_DCA_TXCTRL_DESC_WRO_EN;
1243 IXGBE_WRITE_REG(hw, IXGBE_VFDCA_TXCTRL(j), txctrl);
1246 txdctl = IXGBE_READ_REG(hw, IXGBE_VFTXDCTL(j));
1247 txdctl |= IXGBE_TXDCTL_ENABLE;
1248 IXGBE_WRITE_REG(hw, IXGBE_VFTXDCTL(j), txdctl);
1252 } /* ixv_initialize_transmit_units */
1254 /************************************************************************
1255 * ixv_initialize_rss_mapping
1256 ************************************************************************/
1258 ixv_initialize_rss_mapping(struct adapter *adapter)
1260 struct ixgbe_hw *hw = &adapter->hw;
1261 u32 reta = 0, mrqc, rss_key[10];
1264 u32 rss_hash_config;
1266 if (adapter->feat_en & IXGBE_FEATURE_RSS) {
1267 /* Fetch the configured RSS key */
1268 rss_getkey((uint8_t *)&rss_key);
1270 /* set up random bits */
1271 arc4rand(&rss_key, sizeof(rss_key), 0);
1274 /* Now fill out hash function seeds */
1275 for (i = 0; i < 10; i++)
1276 IXGBE_WRITE_REG(hw, IXGBE_VFRSSRK(i), rss_key[i]);
1278 /* Set up the redirection table */
1279 for (i = 0, j = 0; i < 64; i++, j++) {
1280 if (j == adapter->num_rx_queues)
1283 if (adapter->feat_en & IXGBE_FEATURE_RSS) {
1285 * Fetch the RSS bucket id for the given indirection
1286 * entry. Cap it at the number of configured buckets
1287 * (which is num_rx_queues.)
1289 queue_id = rss_get_indirection_to_bucket(i);
1290 queue_id = queue_id % adapter->num_rx_queues;
1295 * The low 8 bits are for hash value (n+0);
1296 * The next 8 bits are for hash value (n+1), etc.
1299 reta |= ((uint32_t)queue_id) << 24;
1301 IXGBE_WRITE_REG(hw, IXGBE_VFRETA(i >> 2), reta);
1306 /* Perform hash on these packet types */
1307 if (adapter->feat_en & IXGBE_FEATURE_RSS)
1308 rss_hash_config = rss_gethashconfig();
1311 * Disable UDP - IP fragments aren't currently being handled
1312 * and so we end up with a mix of 2-tuple and 4-tuple
1315 rss_hash_config = RSS_HASHTYPE_RSS_IPV4
1316 | RSS_HASHTYPE_RSS_TCP_IPV4
1317 | RSS_HASHTYPE_RSS_IPV6
1318 | RSS_HASHTYPE_RSS_TCP_IPV6;
1321 mrqc = IXGBE_MRQC_RSSEN;
1322 if (rss_hash_config & RSS_HASHTYPE_RSS_IPV4)
1323 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4;
1324 if (rss_hash_config & RSS_HASHTYPE_RSS_TCP_IPV4)
1325 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4_TCP;
1326 if (rss_hash_config & RSS_HASHTYPE_RSS_IPV6)
1327 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6;
1328 if (rss_hash_config & RSS_HASHTYPE_RSS_TCP_IPV6)
1329 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_TCP;
1330 if (rss_hash_config & RSS_HASHTYPE_RSS_IPV6_EX)
1331 device_printf(adapter->dev, "%s: RSS_HASHTYPE_RSS_IPV6_EX defined, but not supported\n",
1333 if (rss_hash_config & RSS_HASHTYPE_RSS_TCP_IPV6_EX)
1334 device_printf(adapter->dev, "%s: RSS_HASHTYPE_RSS_TCP_IPV6_EX defined, but not supported\n",
1336 if (rss_hash_config & RSS_HASHTYPE_RSS_UDP_IPV4)
1337 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV4_UDP;
1338 if (rss_hash_config & RSS_HASHTYPE_RSS_UDP_IPV6)
1339 mrqc |= IXGBE_MRQC_RSS_FIELD_IPV6_UDP;
1340 if (rss_hash_config & RSS_HASHTYPE_RSS_UDP_IPV6_EX)
1341 device_printf(adapter->dev, "%s: RSS_HASHTYPE_RSS_UDP_IPV6_EX defined, but not supported\n",
1343 IXGBE_WRITE_REG(hw, IXGBE_VFMRQC, mrqc);
1344 } /* ixv_initialize_rss_mapping */
1347 /************************************************************************
1348 * ixv_initialize_receive_units - Setup receive registers and features.
1349 ************************************************************************/
1351 ixv_initialize_receive_units(if_ctx_t ctx)
1353 struct adapter *adapter = iflib_get_softc(ctx);
1354 if_softc_ctx_t scctx;
1355 struct ixgbe_hw *hw = &adapter->hw;
1356 struct ifnet *ifp = iflib_get_ifp(ctx);
1357 struct ix_rx_queue *que = adapter->rx_queues;
1360 if (ifp->if_mtu > ETHERMTU)
1361 bufsz = 4096 >> IXGBE_SRRCTL_BSIZEPKT_SHIFT;
1363 bufsz = 2048 >> IXGBE_SRRCTL_BSIZEPKT_SHIFT;
1365 psrtype = IXGBE_PSRTYPE_TCPHDR
1366 | IXGBE_PSRTYPE_UDPHDR
1367 | IXGBE_PSRTYPE_IPV4HDR
1368 | IXGBE_PSRTYPE_IPV6HDR
1369 | IXGBE_PSRTYPE_L2HDR;
1371 if (adapter->num_rx_queues > 1)
1374 IXGBE_WRITE_REG(hw, IXGBE_VFPSRTYPE, psrtype);
1376 /* Tell PF our max_frame size */
1377 if (ixgbevf_rlpml_set_vf(hw, adapter->max_frame_size) != 0) {
1378 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");
1380 scctx = adapter->shared;
1382 for (int i = 0; i < adapter->num_rx_queues; i++, que++) {
1383 struct rx_ring *rxr = &que->rxr;
1384 u64 rdba = rxr->rx_paddr;
1388 /* Disable the queue */
1389 rxdctl = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(j));
1390 rxdctl &= ~IXGBE_RXDCTL_ENABLE;
1391 IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(j), rxdctl);
1392 for (int k = 0; k < 10; k++) {
1393 if (IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(j)) &
1394 IXGBE_RXDCTL_ENABLE)
1400 /* Setup the Base and Length of the Rx Descriptor Ring */
1401 IXGBE_WRITE_REG(hw, IXGBE_VFRDBAL(j),
1402 (rdba & 0x00000000ffffffffULL));
1403 IXGBE_WRITE_REG(hw, IXGBE_VFRDBAH(j), (rdba >> 32));
1404 IXGBE_WRITE_REG(hw, IXGBE_VFRDLEN(j),
1405 scctx->isc_nrxd[0] * sizeof(union ixgbe_adv_rx_desc));
1407 /* Reset the ring indices */
1408 IXGBE_WRITE_REG(hw, IXGBE_VFRDH(rxr->me), 0);
1409 IXGBE_WRITE_REG(hw, IXGBE_VFRDT(rxr->me), 0);
1411 /* Set up the SRRCTL register */
1412 reg = IXGBE_READ_REG(hw, IXGBE_VFSRRCTL(j));
1413 reg &= ~IXGBE_SRRCTL_BSIZEHDR_MASK;
1414 reg &= ~IXGBE_SRRCTL_BSIZEPKT_MASK;
1416 reg |= IXGBE_SRRCTL_DESCTYPE_ADV_ONEBUF;
1417 IXGBE_WRITE_REG(hw, IXGBE_VFSRRCTL(j), reg);
1419 /* Capture Rx Tail index */
1420 rxr->tail = IXGBE_VFRDT(rxr->me);
1422 /* Do the queue enabling last */
1423 rxdctl |= IXGBE_RXDCTL_ENABLE | IXGBE_RXDCTL_VME;
1424 IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(j), rxdctl);
1425 for (int l = 0; l < 10; l++) {
1426 if (IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(j)) &
1427 IXGBE_RXDCTL_ENABLE)
1433 /* Set the Tail Pointer */
1436 * In netmap mode, we must preserve the buffers made
1437 * available to userspace before the if_init()
1438 * (this is true by default on the TX side, because
1439 * init makes all buffers available to userspace).
1441 * netmap_reset() and the device specific routines
1442 * (e.g. ixgbe_setup_receive_rings()) map these
1443 * buffers at the end of the NIC ring, so here we
1444 * must set the RDT (tail) register to make sure
1445 * they are not overwritten.
1447 * In this driver the NIC ring starts at RDH = 0,
1448 * RDT points to the last slot available for reception (?),
1449 * so RDT = num_rx_desc - 1 means the whole ring is available.
1451 if (ifp->if_capenable & IFCAP_NETMAP) {
1452 struct netmap_adapter *na = NA(ifp);
1453 struct netmap_kring *kring = na->rx_rings[j];
1454 int t = na->num_rx_desc - 1 - nm_kr_rxspace(kring);
1456 IXGBE_WRITE_REG(hw, IXGBE_VFRDT(rxr->me), t);
1458 #endif /* DEV_NETMAP */
1459 IXGBE_WRITE_REG(hw, IXGBE_VFRDT(rxr->me),
1460 scctx->isc_nrxd[0] - 1);
1463 ixv_initialize_rss_mapping(adapter);
1464 } /* ixv_initialize_receive_units */
1466 /************************************************************************
1467 * ixv_setup_vlan_support
1468 ************************************************************************/
1470 ixv_setup_vlan_support(if_ctx_t ctx)
1472 struct ifnet *ifp = iflib_get_ifp(ctx);
1473 struct adapter *adapter = iflib_get_softc(ctx);
1474 struct ixgbe_hw *hw = &adapter->hw;
1475 u32 ctrl, vid, vfta, retry;
1478 * We get here thru if_init, meaning
1479 * a soft reset, this has already cleared
1480 * the VFTA and other state, so if there
1481 * have been no vlan's registered do nothing.
1483 if (adapter->num_vlans == 0)
1486 if (ifp->if_capenable & IFCAP_VLAN_HWTAGGING) {
1487 /* Enable the queues */
1488 for (int i = 0; i < adapter->num_rx_queues; i++) {
1489 ctrl = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(i));
1490 ctrl |= IXGBE_RXDCTL_VME;
1491 IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(i), ctrl);
1493 * Let Rx path know that it needs to store VLAN tag
1494 * as part of extra mbuf info.
1496 adapter->rx_queues[i].rxr.vtag_strip = TRUE;
1501 * If filtering VLAN tags is disabled,
1502 * there is no need to fill VLAN Filter Table Array (VFTA).
1504 if ((ifp->if_capenable & IFCAP_VLAN_HWFILTER) == 0)
1508 * A soft reset zero's out the VFTA, so
1509 * we need to repopulate it now.
1511 for (int i = 0; i < IXGBE_VFTA_SIZE; i++) {
1512 if (ixv_shadow_vfta[i] == 0)
1514 vfta = ixv_shadow_vfta[i];
1516 * Reconstruct the vlan id's
1517 * based on the bits set in each
1518 * of the array ints.
1520 for (int j = 0; j < 32; j++) {
1522 if ((vfta & (1 << j)) == 0)
1525 /* Call the shared code mailbox routine */
1526 while (hw->mac.ops.set_vfta(hw, vid, 0, TRUE, FALSE)) {
1532 } /* ixv_setup_vlan_support */
1534 /************************************************************************
1535 * ixv_if_register_vlan
1537 * Run via a vlan config EVENT, it enables us to use the
1538 * HW Filter table since we can get the vlan id. This just
1539 * creates the entry in the soft version of the VFTA, init
1540 * will repopulate the real table.
1541 ************************************************************************/
1543 ixv_if_register_vlan(if_ctx_t ctx, u16 vtag)
1545 struct adapter *adapter = iflib_get_softc(ctx);
1548 index = (vtag >> 5) & 0x7F;
1550 ixv_shadow_vfta[index] |= (1 << bit);
1551 ++adapter->num_vlans;
1552 } /* ixv_if_register_vlan */
1554 /************************************************************************
1555 * ixv_if_unregister_vlan
1557 * Run via a vlan unconfig EVENT, remove our entry
1559 ************************************************************************/
1561 ixv_if_unregister_vlan(if_ctx_t ctx, u16 vtag)
1563 struct adapter *adapter = iflib_get_softc(ctx);
1566 index = (vtag >> 5) & 0x7F;
1568 ixv_shadow_vfta[index] &= ~(1 << bit);
1569 --adapter->num_vlans;
1570 } /* ixv_if_unregister_vlan */
1572 /************************************************************************
1573 * ixv_if_enable_intr
1574 ************************************************************************/
1576 ixv_if_enable_intr(if_ctx_t ctx)
1578 struct adapter *adapter = iflib_get_softc(ctx);
1579 struct ixgbe_hw *hw = &adapter->hw;
1580 struct ix_rx_queue *que = adapter->rx_queues;
1581 u32 mask = (IXGBE_EIMS_ENABLE_MASK & ~IXGBE_EIMS_RTX_QUEUE);
1583 IXGBE_WRITE_REG(hw, IXGBE_VTEIMS, mask);
1585 mask = IXGBE_EIMS_ENABLE_MASK;
1586 mask &= ~(IXGBE_EIMS_OTHER | IXGBE_EIMS_LSC);
1587 IXGBE_WRITE_REG(hw, IXGBE_VTEIAC, mask);
1589 for (int i = 0; i < adapter->num_rx_queues; i++, que++)
1590 ixv_enable_queue(adapter, que->msix);
1592 IXGBE_WRITE_FLUSH(hw);
1593 } /* ixv_if_enable_intr */
1595 /************************************************************************
1596 * ixv_if_disable_intr
1597 ************************************************************************/
1599 ixv_if_disable_intr(if_ctx_t ctx)
1601 struct adapter *adapter = iflib_get_softc(ctx);
1602 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VTEIAC, 0);
1603 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VTEIMC, ~0);
1604 IXGBE_WRITE_FLUSH(&adapter->hw);
1605 } /* ixv_if_disable_intr */
1607 /************************************************************************
1608 * ixv_if_rx_queue_intr_enable
1609 ************************************************************************/
1611 ixv_if_rx_queue_intr_enable(if_ctx_t ctx, uint16_t rxqid)
1613 struct adapter *adapter = iflib_get_softc(ctx);
1614 struct ix_rx_queue *que = &adapter->rx_queues[rxqid];
1616 ixv_enable_queue(adapter, que->rxr.me);
1619 } /* ixv_if_rx_queue_intr_enable */
1621 /************************************************************************
1624 * Setup the correct IVAR register for a particular MSI-X interrupt
1625 * - entry is the register array entry
1626 * - vector is the MSI-X vector for this queue
1627 * - type is RX/TX/MISC
1628 ************************************************************************/
1630 ixv_set_ivar(struct adapter *adapter, u8 entry, u8 vector, s8 type)
1632 struct ixgbe_hw *hw = &adapter->hw;
1635 vector |= IXGBE_IVAR_ALLOC_VAL;
1637 if (type == -1) { /* MISC IVAR */
1638 ivar = IXGBE_READ_REG(hw, IXGBE_VTIVAR_MISC);
1641 IXGBE_WRITE_REG(hw, IXGBE_VTIVAR_MISC, ivar);
1642 } else { /* RX/TX IVARS */
1643 index = (16 * (entry & 1)) + (8 * type);
1644 ivar = IXGBE_READ_REG(hw, IXGBE_VTIVAR(entry >> 1));
1645 ivar &= ~(0xFF << index);
1646 ivar |= (vector << index);
1647 IXGBE_WRITE_REG(hw, IXGBE_VTIVAR(entry >> 1), ivar);
1649 } /* ixv_set_ivar */
1651 /************************************************************************
1652 * ixv_configure_ivars
1653 ************************************************************************/
1655 ixv_configure_ivars(struct adapter *adapter)
1657 struct ix_rx_queue *que = adapter->rx_queues;
1659 MPASS(adapter->num_rx_queues == adapter->num_tx_queues);
1661 for (int i = 0; i < adapter->num_rx_queues; i++, que++) {
1662 /* First the RX queue entry */
1663 ixv_set_ivar(adapter, i, que->msix, 0);
1664 /* ... and the TX */
1665 ixv_set_ivar(adapter, i, que->msix, 1);
1666 /* Set an initial value in EITR */
1667 IXGBE_WRITE_REG(&adapter->hw, IXGBE_VTEITR(que->msix),
1668 IXGBE_EITR_DEFAULT);
1671 /* For the mailbox interrupt */
1672 ixv_set_ivar(adapter, 1, adapter->vector, -1);
1673 } /* ixv_configure_ivars */
1675 /************************************************************************
1678 * The VF stats registers never have a truly virgin
1679 * starting point, so this routine tries to make an
1680 * artificial one, marking ground zero on attach as
1682 ************************************************************************/
1684 ixv_save_stats(struct adapter *adapter)
1686 if (adapter->stats.vf.vfgprc || adapter->stats.vf.vfgptc) {
1687 adapter->stats.vf.saved_reset_vfgprc +=
1688 adapter->stats.vf.vfgprc - adapter->stats.vf.base_vfgprc;
1689 adapter->stats.vf.saved_reset_vfgptc +=
1690 adapter->stats.vf.vfgptc - adapter->stats.vf.base_vfgptc;
1691 adapter->stats.vf.saved_reset_vfgorc +=
1692 adapter->stats.vf.vfgorc - adapter->stats.vf.base_vfgorc;
1693 adapter->stats.vf.saved_reset_vfgotc +=
1694 adapter->stats.vf.vfgotc - adapter->stats.vf.base_vfgotc;
1695 adapter->stats.vf.saved_reset_vfmprc +=
1696 adapter->stats.vf.vfmprc - adapter->stats.vf.base_vfmprc;
1698 } /* ixv_save_stats */
1700 /************************************************************************
1702 ************************************************************************/
1704 ixv_init_stats(struct adapter *adapter)
1706 struct ixgbe_hw *hw = &adapter->hw;
1708 adapter->stats.vf.last_vfgprc = IXGBE_READ_REG(hw, IXGBE_VFGPRC);
1709 adapter->stats.vf.last_vfgorc = IXGBE_READ_REG(hw, IXGBE_VFGORC_LSB);
1710 adapter->stats.vf.last_vfgorc |=
1711 (((u64)(IXGBE_READ_REG(hw, IXGBE_VFGORC_MSB))) << 32);
1713 adapter->stats.vf.last_vfgptc = IXGBE_READ_REG(hw, IXGBE_VFGPTC);
1714 adapter->stats.vf.last_vfgotc = IXGBE_READ_REG(hw, IXGBE_VFGOTC_LSB);
1715 adapter->stats.vf.last_vfgotc |=
1716 (((u64)(IXGBE_READ_REG(hw, IXGBE_VFGOTC_MSB))) << 32);
1718 adapter->stats.vf.last_vfmprc = IXGBE_READ_REG(hw, IXGBE_VFMPRC);
1720 adapter->stats.vf.base_vfgprc = adapter->stats.vf.last_vfgprc;
1721 adapter->stats.vf.base_vfgorc = adapter->stats.vf.last_vfgorc;
1722 adapter->stats.vf.base_vfgptc = adapter->stats.vf.last_vfgptc;
1723 adapter->stats.vf.base_vfgotc = adapter->stats.vf.last_vfgotc;
1724 adapter->stats.vf.base_vfmprc = adapter->stats.vf.last_vfmprc;
1725 } /* ixv_init_stats */
1727 #define UPDATE_STAT_32(reg, last, count) \
1729 u32 current = IXGBE_READ_REG(hw, reg); \
1730 if (current < last) \
1731 count += 0x100000000LL; \
1733 count &= 0xFFFFFFFF00000000LL; \
1737 #define UPDATE_STAT_36(lsb, msb, last, count) \
1739 u64 cur_lsb = IXGBE_READ_REG(hw, lsb); \
1740 u64 cur_msb = IXGBE_READ_REG(hw, msb); \
1741 u64 current = ((cur_msb << 32) | cur_lsb); \
1742 if (current < last) \
1743 count += 0x1000000000LL; \
1745 count &= 0xFFFFFFF000000000LL; \
1749 /************************************************************************
1750 * ixv_update_stats - Update the board statistics counters.
1751 ************************************************************************/
1753 ixv_update_stats(struct adapter *adapter)
1755 struct ixgbe_hw *hw = &adapter->hw;
1756 struct ixgbevf_hw_stats *stats = &adapter->stats.vf;
1758 UPDATE_STAT_32(IXGBE_VFGPRC, adapter->stats.vf.last_vfgprc,
1759 adapter->stats.vf.vfgprc);
1760 UPDATE_STAT_32(IXGBE_VFGPTC, adapter->stats.vf.last_vfgptc,
1761 adapter->stats.vf.vfgptc);
1762 UPDATE_STAT_36(IXGBE_VFGORC_LSB, IXGBE_VFGORC_MSB,
1763 adapter->stats.vf.last_vfgorc, adapter->stats.vf.vfgorc);
1764 UPDATE_STAT_36(IXGBE_VFGOTC_LSB, IXGBE_VFGOTC_MSB,
1765 adapter->stats.vf.last_vfgotc, adapter->stats.vf.vfgotc);
1766 UPDATE_STAT_32(IXGBE_VFMPRC, adapter->stats.vf.last_vfmprc,
1767 adapter->stats.vf.vfmprc);
1769 /* Fill out the OS statistics structure */
1770 IXGBE_SET_IPACKETS(adapter, stats->vfgprc);
1771 IXGBE_SET_OPACKETS(adapter, stats->vfgptc);
1772 IXGBE_SET_IBYTES(adapter, stats->vfgorc);
1773 IXGBE_SET_OBYTES(adapter, stats->vfgotc);
1774 IXGBE_SET_IMCASTS(adapter, stats->vfmprc);
1775 } /* ixv_update_stats */
1777 /************************************************************************
1778 * ixv_add_stats_sysctls - Add statistic sysctls for the VF.
1779 ************************************************************************/
1781 ixv_add_stats_sysctls(struct adapter *adapter)
1783 device_t dev = adapter->dev;
1784 struct ix_tx_queue *tx_que = adapter->tx_queues;
1785 struct ix_rx_queue *rx_que = adapter->rx_queues;
1786 struct sysctl_ctx_list *ctx = device_get_sysctl_ctx(dev);
1787 struct sysctl_oid *tree = device_get_sysctl_tree(dev);
1788 struct sysctl_oid_list *child = SYSCTL_CHILDREN(tree);
1789 struct ixgbevf_hw_stats *stats = &adapter->stats.vf;
1790 struct sysctl_oid *stat_node, *queue_node;
1791 struct sysctl_oid_list *stat_list, *queue_list;
1793 #define QUEUE_NAME_LEN 32
1794 char namebuf[QUEUE_NAME_LEN];
1796 /* Driver Statistics */
1797 SYSCTL_ADD_ULONG(ctx, child, OID_AUTO, "watchdog_events",
1798 CTLFLAG_RD, &adapter->watchdog_events, "Watchdog timeouts");
1799 SYSCTL_ADD_ULONG(ctx, child, OID_AUTO, "link_irq",
1800 CTLFLAG_RD, &adapter->link_irq, "Link MSI-X IRQ Handled");
1802 for (int i = 0; i < adapter->num_tx_queues; i++, tx_que++) {
1803 struct tx_ring *txr = &tx_que->txr;
1804 snprintf(namebuf, QUEUE_NAME_LEN, "queue%d", i);
1805 queue_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, namebuf,
1806 CTLFLAG_RD, NULL, "Queue Name");
1807 queue_list = SYSCTL_CHILDREN(queue_node);
1809 SYSCTL_ADD_UQUAD(ctx, queue_list, OID_AUTO, "tso_tx",
1810 CTLFLAG_RD, &(txr->tso_tx), "TSO Packets");
1811 SYSCTL_ADD_UQUAD(ctx, queue_list, OID_AUTO, "tx_packets",
1812 CTLFLAG_RD, &(txr->total_packets), "TX Packets");
1815 for (int i = 0; i < adapter->num_rx_queues; i++, rx_que++) {
1816 struct rx_ring *rxr = &rx_que->rxr;
1817 snprintf(namebuf, QUEUE_NAME_LEN, "queue%d", i);
1818 queue_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, namebuf,
1819 CTLFLAG_RD, NULL, "Queue Name");
1820 queue_list = SYSCTL_CHILDREN(queue_node);
1822 SYSCTL_ADD_UQUAD(ctx, queue_list, OID_AUTO, "irqs",
1823 CTLFLAG_RD, &(rx_que->irqs), "IRQs on queue");
1824 SYSCTL_ADD_UQUAD(ctx, queue_list, OID_AUTO, "rx_packets",
1825 CTLFLAG_RD, &(rxr->rx_packets), "RX packets");
1826 SYSCTL_ADD_UQUAD(ctx, queue_list, OID_AUTO, "rx_bytes",
1827 CTLFLAG_RD, &(rxr->rx_bytes), "RX bytes");
1828 SYSCTL_ADD_UQUAD(ctx, queue_list, OID_AUTO, "rx_discarded",
1829 CTLFLAG_RD, &(rxr->rx_discarded), "Discarded RX packets");
1832 stat_node = SYSCTL_ADD_NODE(ctx, child, OID_AUTO, "mac",
1833 CTLFLAG_RD, NULL, "VF Statistics (read from HW registers)");
1834 stat_list = SYSCTL_CHILDREN(stat_node);
1836 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "good_pkts_rcvd",
1837 CTLFLAG_RD, &stats->vfgprc, "Good Packets Received");
1838 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "good_octets_rcvd",
1839 CTLFLAG_RD, &stats->vfgorc, "Good Octets Received");
1840 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "mcast_pkts_rcvd",
1841 CTLFLAG_RD, &stats->vfmprc, "Multicast Packets Received");
1842 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "good_pkts_txd",
1843 CTLFLAG_RD, &stats->vfgptc, "Good Packets Transmitted");
1844 SYSCTL_ADD_UQUAD(ctx, stat_list, OID_AUTO, "good_octets_txd",
1845 CTLFLAG_RD, &stats->vfgotc, "Good Octets Transmitted");
1846 } /* ixv_add_stats_sysctls */
1848 /************************************************************************
1849 * ixv_print_debug_info
1851 * Called only when em_display_debug_stats is enabled.
1852 * Provides a way to take a look at important statistics
1853 * maintained by the driver and hardware.
1854 ************************************************************************/
1856 ixv_print_debug_info(struct adapter *adapter)
1858 device_t dev = adapter->dev;
1859 struct ixgbe_hw *hw = &adapter->hw;
1861 device_printf(dev, "Error Byte Count = %u \n",
1862 IXGBE_READ_REG(hw, IXGBE_ERRBC));
1864 device_printf(dev, "MBX IRQ Handled: %lu\n", (long)adapter->link_irq);
1865 } /* ixv_print_debug_info */
1867 /************************************************************************
1869 ************************************************************************/
1871 ixv_sysctl_debug(SYSCTL_HANDLER_ARGS)
1873 struct adapter *adapter;
1877 error = sysctl_handle_int(oidp, &result, 0, req);
1879 if (error || !req->newptr)
1883 adapter = (struct adapter *)arg1;
1884 ixv_print_debug_info(adapter);
1888 } /* ixv_sysctl_debug */
1890 /************************************************************************
1891 * ixv_init_device_features
1892 ************************************************************************/
1894 ixv_init_device_features(struct adapter *adapter)
1896 adapter->feat_cap = IXGBE_FEATURE_NETMAP
1899 | IXGBE_FEATURE_LEGACY_TX;
1901 /* A tad short on feature flags for VFs, atm. */
1902 switch (adapter->hw.mac.type) {
1903 case ixgbe_mac_82599_vf:
1905 case ixgbe_mac_X540_vf:
1907 case ixgbe_mac_X550_vf:
1908 case ixgbe_mac_X550EM_x_vf:
1909 case ixgbe_mac_X550EM_a_vf:
1910 adapter->feat_cap |= IXGBE_FEATURE_NEEDS_CTXD;
1916 /* Enabled by default... */
1917 /* Is a virtual function (VF) */
1918 if (adapter->feat_cap & IXGBE_FEATURE_VF)
1919 adapter->feat_en |= IXGBE_FEATURE_VF;
1921 if (adapter->feat_cap & IXGBE_FEATURE_NETMAP)
1922 adapter->feat_en |= IXGBE_FEATURE_NETMAP;
1923 /* Receive-Side Scaling (RSS) */
1924 if (adapter->feat_cap & IXGBE_FEATURE_RSS)
1925 adapter->feat_en |= IXGBE_FEATURE_RSS;
1926 /* Needs advanced context descriptor regardless of offloads req'd */
1927 if (adapter->feat_cap & IXGBE_FEATURE_NEEDS_CTXD)
1928 adapter->feat_en |= IXGBE_FEATURE_NEEDS_CTXD;
1929 } /* ixv_init_device_features */