2 * Copyright 2008-2014 Cisco Systems, Inc. All rights reserved.
3 * Copyright 2007 Nuova Systems, Inc. All rights reserved.
5 * Copyright (c) 2014, Cisco Systems, Inc.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
28 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
30 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
44 #include <rte_memzone.h>
45 #include <rte_malloc.h>
47 #include <rte_string_fns.h>
48 #include <rte_ethdev.h>
50 #include "enic_compat.h"
52 #include "wq_enet_desc.h"
53 #include "rq_enet_desc.h"
54 #include "cq_enet_desc.h"
55 #include "vnic_enet.h"
60 #include "vnic_intr.h"
63 static inline int enic_is_sriov_vf(struct enic *enic)
65 return enic->pdev->id.device_id == PCI_DEVICE_ID_CISCO_VIC_ENET_VF;
68 static int is_zero_addr(uint8_t *addr)
70 return !(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5]);
73 static int is_mcast_addr(uint8_t *addr)
78 static int is_eth_addr_valid(uint8_t *addr)
80 return !is_mcast_addr(addr) && !is_zero_addr(addr);
83 static inline struct rte_mbuf *
84 enic_rxmbuf_alloc(struct rte_mempool *mp)
88 m = __rte_mbuf_raw_alloc(mp);
89 __rte_mbuf_sanity_check_raw(m, 0);
93 void enic_set_hdr_split_size(struct enic *enic, u16 split_hdr_size)
95 vnic_set_hdr_split_size(enic->vdev, split_hdr_size);
98 static void enic_free_wq_buf(__rte_unused struct vnic_wq *wq, struct vnic_wq_buf *buf)
100 struct rte_mbuf *mbuf = (struct rte_mbuf *)buf->os_buf;
102 rte_mempool_put(mbuf->pool, mbuf);
106 static void enic_wq_free_buf(struct vnic_wq *wq,
107 __rte_unused struct cq_desc *cq_desc,
108 struct vnic_wq_buf *buf,
109 __rte_unused void *opaque)
111 enic_free_wq_buf(wq, buf);
114 static int enic_wq_service(struct vnic_dev *vdev, struct cq_desc *cq_desc,
115 __rte_unused u8 type, u16 q_number, u16 completed_index, void *opaque)
117 struct enic *enic = vnic_dev_priv(vdev);
119 vnic_wq_service(&enic->wq[q_number], cq_desc,
120 completed_index, enic_wq_free_buf,
126 static void enic_log_q_error(struct enic *enic)
131 for (i = 0; i < enic->wq_count; i++) {
132 error_status = vnic_wq_error_status(&enic->wq[i]);
134 dev_err(enic, "WQ[%d] error_status %d\n", i,
138 for (i = 0; i < enic->rq_count; i++) {
139 error_status = vnic_rq_error_status(&enic->rq[i]);
141 dev_err(enic, "RQ[%d] error_status %d\n", i,
146 unsigned int enic_cleanup_wq(struct enic *enic, struct vnic_wq *wq)
148 unsigned int cq = enic_cq_wq(enic, wq->index);
150 /* Return the work done */
151 return vnic_cq_service(&enic->cq[cq],
152 -1 /*wq_work_to_do*/, enic_wq_service, NULL);
156 int enic_send_pkt(struct enic *enic, struct vnic_wq *wq,
157 struct rte_mbuf *tx_pkt, unsigned short len,
158 uint8_t sop, uint8_t eop,
159 uint16_t ol_flags, uint16_t vlan_tag)
161 struct wq_enet_desc *desc = vnic_wq_next_desc(wq);
163 uint8_t cq_entry = eop;
164 uint8_t vlan_tag_insert = 0;
165 uint64_t bus_addr = (dma_addr_t)
166 (tx_pkt->buf_physaddr + RTE_PKTMBUF_HEADROOM);
169 if (ol_flags & PKT_TX_VLAN_PKT)
172 if (enic->hw_ip_checksum) {
173 if (ol_flags & PKT_TX_IP_CKSUM)
174 mss |= ENIC_CALC_IP_CKSUM;
176 if (ol_flags & PKT_TX_TCP_UDP_CKSUM)
177 mss |= ENIC_CALC_TCP_UDP_CKSUM;
181 wq_enet_desc_enc(desc,
185 0 /* header_length */,
186 0 /* offload_mode WQ_ENET_OFFLOAD_MODE_CSUM */,
194 vnic_wq_post(wq, (void *)tx_pkt, bus_addr, len,
198 0 /*compressed send*/,
204 void enic_dev_stats_clear(struct enic *enic)
206 if (vnic_dev_stats_clear(enic->vdev))
207 dev_err(enic, "Error in clearing stats\n");
210 void enic_dev_stats_get(struct enic *enic, struct rte_eth_stats *r_stats)
212 struct vnic_stats *stats;
214 memset(r_stats, 0, sizeof(*r_stats));
215 if (vnic_dev_stats_dump(enic->vdev, &stats)) {
216 dev_err(enic, "Error in getting stats\n");
220 r_stats->ipackets = stats->rx.rx_frames_ok;
221 r_stats->opackets = stats->tx.tx_frames_ok;
223 r_stats->ibytes = stats->rx.rx_bytes_ok;
224 r_stats->obytes = stats->tx.tx_bytes_ok;
226 r_stats->ierrors = stats->rx.rx_errors;
227 r_stats->oerrors = stats->tx.tx_errors;
229 r_stats->imcasts = stats->rx.rx_multicast_frames_ok;
230 r_stats->rx_nombuf = stats->rx.rx_no_bufs;
233 void enic_del_mac_address(struct enic *enic)
235 if (vnic_dev_del_addr(enic->vdev, enic->mac_addr))
236 dev_err(enic, "del mac addr failed\n");
239 void enic_set_mac_address(struct enic *enic, uint8_t *mac_addr)
243 if (!is_eth_addr_valid(mac_addr)) {
244 dev_err(enic, "invalid mac address\n");
248 err = vnic_dev_del_addr(enic->vdev, mac_addr);
250 dev_err(enic, "del mac addr failed\n");
254 ether_addr_copy((struct ether_addr *)mac_addr,
255 (struct ether_addr *)enic->mac_addr);
257 err = vnic_dev_add_addr(enic->vdev, mac_addr);
259 dev_err(enic, "add mac addr failed\n");
265 enic_free_rq_buf(__rte_unused struct vnic_rq *rq, struct vnic_rq_buf *buf)
270 rte_pktmbuf_free((struct rte_mbuf *)buf->os_buf);
274 void enic_init_vnic_resources(struct enic *enic)
276 unsigned int error_interrupt_enable = 1;
277 unsigned int error_interrupt_offset = 0;
278 unsigned int index = 0;
280 for (index = 0; index < enic->rq_count; index++) {
281 vnic_rq_init(&enic->rq[index],
282 enic_cq_rq(enic, index),
283 error_interrupt_enable,
284 error_interrupt_offset);
287 for (index = 0; index < enic->wq_count; index++) {
288 vnic_wq_init(&enic->wq[index],
289 enic_cq_wq(enic, index),
290 error_interrupt_enable,
291 error_interrupt_offset);
294 vnic_dev_stats_clear(enic->vdev);
296 for (index = 0; index < enic->cq_count; index++) {
297 vnic_cq_init(&enic->cq[index],
298 0 /* flow_control_enable */,
299 1 /* color_enable */,
302 1 /* cq_tail_color */,
303 0 /* interrupt_enable */,
304 1 /* cq_entry_enable */,
305 0 /* cq_message_enable */,
306 0 /* interrupt offset */,
307 0 /* cq_message_addr */);
310 vnic_intr_init(&enic->intr,
311 enic->config.intr_timer_usec,
312 enic->config.intr_timer_type,
313 /*mask_on_assertion*/1);
317 static int enic_rq_alloc_buf(struct vnic_rq *rq)
319 struct enic *enic = vnic_dev_priv(rq->vdev);
321 struct rq_enet_desc *desc = vnic_rq_next_desc(rq);
322 uint8_t type = RQ_ENET_TYPE_ONLY_SOP;
323 u16 split_hdr_size = vnic_get_hdr_split_size(enic->vdev);
324 struct rte_mbuf *mbuf = enic_rxmbuf_alloc(rq->mp);
325 struct rte_mbuf *hdr_mbuf = NULL;
328 dev_err(enic, "mbuf alloc in enic_rq_alloc_buf failed\n");
332 if (unlikely(split_hdr_size)) {
333 if (vnic_rq_desc_avail(rq) < 2) {
334 rte_mempool_put(mbuf->pool, mbuf);
337 hdr_mbuf = enic_rxmbuf_alloc(rq->mp);
339 rte_mempool_put(mbuf->pool, mbuf);
341 "hdr_mbuf alloc in enic_rq_alloc_buf failed\n");
345 hdr_mbuf->data_off = RTE_PKTMBUF_HEADROOM;
347 hdr_mbuf->nb_segs = 2;
348 hdr_mbuf->port = rq->index;
349 hdr_mbuf->next = mbuf;
351 dma_addr = (dma_addr_t)
352 (hdr_mbuf->buf_physaddr + hdr_mbuf->data_off);
354 rq_enet_desc_enc(desc, dma_addr, type, split_hdr_size);
356 vnic_rq_post(rq, (void *)hdr_mbuf, 0 /*os_buf_index*/, dma_addr,
357 (unsigned int)split_hdr_size, 0 /*wrid*/);
359 desc = vnic_rq_next_desc(rq);
360 type = RQ_ENET_TYPE_NOT_SOP;
363 mbuf->port = rq->index;
366 mbuf->data_off = RTE_PKTMBUF_HEADROOM;
369 dma_addr = (dma_addr_t)
370 (mbuf->buf_physaddr + mbuf->data_off);
372 rq_enet_desc_enc(desc, dma_addr, type, mbuf->buf_len);
374 vnic_rq_post(rq, (void *)mbuf, 0 /*os_buf_index*/, dma_addr,
375 (unsigned int)mbuf->buf_len, 0 /*wrid*/);
380 static int enic_rq_indicate_buf(struct vnic_rq *rq,
381 struct cq_desc *cq_desc, struct vnic_rq_buf *buf,
382 int skipped, void *opaque)
384 struct enic *enic = vnic_dev_priv(rq->vdev);
385 struct rte_mbuf **rx_pkt_bucket = (struct rte_mbuf **)opaque;
386 struct rte_mbuf *rx_pkt = NULL;
387 struct rte_mbuf *hdr_rx_pkt = NULL;
389 u8 type, color, eop, sop, ingress_port, vlan_stripped;
390 u8 fcoe, fcoe_sof, fcoe_fc_crc_ok, fcoe_enc_error, fcoe_eof;
391 u8 tcp_udp_csum_ok, udp, tcp, ipv4_csum_ok;
392 u8 ipv6, ipv4, ipv4_fragment, fcs_ok, rss_type, csum_not_calc;
394 u16 q_number, completed_index, bytes_written, vlan_tci, checksum;
397 cq_enet_rq_desc_dec((struct cq_enet_rq_desc *)cq_desc,
398 &type, &color, &q_number, &completed_index,
399 &ingress_port, &fcoe, &eop, &sop, &rss_type,
400 &csum_not_calc, &rss_hash, &bytes_written,
401 &packet_error, &vlan_stripped, &vlan_tci, &checksum,
402 &fcoe_sof, &fcoe_fc_crc_ok, &fcoe_enc_error,
403 &fcoe_eof, &tcp_udp_csum_ok, &udp, &tcp,
404 &ipv4_csum_ok, &ipv6, &ipv4, &ipv4_fragment,
407 rx_pkt = (struct rte_mbuf *)buf->os_buf;
410 if (unlikely(packet_error)) {
411 dev_err(enic, "packet error\n");
412 rx_pkt->data_len = 0;
416 if (unlikely(skipped)) {
417 rx_pkt->data_len = 0;
421 if (likely(!vnic_get_hdr_split_size(enic->vdev))) {
422 /* No header split configured */
423 *rx_pkt_bucket = rx_pkt;
424 rx_pkt->pkt_len = bytes_written;
427 rx_pkt->ol_flags |= PKT_RX_IPV4_HDR;
428 if (!csum_not_calc) {
429 if (unlikely(!ipv4_csum_ok))
430 rx_pkt->ol_flags |= PKT_RX_IP_CKSUM_BAD;
432 if ((tcp || udp) && (!tcp_udp_csum_ok))
433 rx_pkt->ol_flags |= PKT_RX_L4_CKSUM_BAD;
436 rx_pkt->ol_flags |= PKT_RX_IPV6_HDR;
440 /* This piece is header */
441 *rx_pkt_bucket = rx_pkt;
442 rx_pkt->pkt_len = bytes_written;
445 /* The packet is smaller than split_hdr_size */
446 *rx_pkt_bucket = rx_pkt;
447 rx_pkt->pkt_len = bytes_written;
449 rx_pkt->ol_flags |= PKT_RX_IPV4_HDR;
450 if (!csum_not_calc) {
451 if (unlikely(!ipv4_csum_ok))
461 rx_pkt->ol_flags |= PKT_RX_IPV6_HDR;
464 hdr_rx_pkt = *rx_pkt_bucket;
465 hdr_rx_pkt->pkt_len += bytes_written;
467 hdr_rx_pkt->ol_flags |= PKT_RX_IPV4_HDR;
468 if (!csum_not_calc) {
469 if (unlikely(!ipv4_csum_ok))
470 hdr_rx_pkt->ol_flags |=
475 hdr_rx_pkt->ol_flags |=
479 hdr_rx_pkt->ol_flags |= PKT_RX_IPV6_HDR;
485 rx_pkt->data_len = bytes_written;
488 rx_pkt->ol_flags |= PKT_RX_RSS_HASH;
489 rx_pkt->hash.rss = rss_hash;
493 rx_pkt->ol_flags |= PKT_RX_VLAN_PKT;
494 rx_pkt->vlan_tci = vlan_tci;
500 static int enic_rq_service(struct vnic_dev *vdev, struct cq_desc *cq_desc,
501 __rte_unused u8 type, u16 q_number, u16 completed_index, void *opaque)
503 struct enic *enic = vnic_dev_priv(vdev);
505 return vnic_rq_service(&enic->rq[q_number], cq_desc,
506 completed_index, VNIC_RQ_RETURN_DESC,
507 enic_rq_indicate_buf, opaque);
511 int enic_poll(struct vnic_rq *rq, struct rte_mbuf **rx_pkts,
512 unsigned int budget, unsigned int *work_done)
514 struct enic *enic = vnic_dev_priv(rq->vdev);
515 unsigned int cq = enic_cq_rq(enic, rq->index);
518 *work_done = vnic_cq_service(&enic->cq[cq],
519 budget, enic_rq_service, (void *)rx_pkts);
522 vnic_rq_fill(rq, enic_rq_alloc_buf);
524 /* Need at least one buffer on ring to get going */
525 if (vnic_rq_desc_used(rq) == 0) {
526 dev_err(enic, "Unable to alloc receive buffers\n");
534 enic_alloc_consistent(__rte_unused void *priv, size_t size,
535 dma_addr_t *dma_handle, u8 *name)
538 const struct rte_memzone *rz;
541 rz = rte_memzone_reserve_aligned((const char *)name,
542 size, 0, 0, ENIC_ALIGN);
544 pr_err("%s : Failed to allocate memory requested for %s",
550 *dma_handle = (dma_addr_t)rz->phys_addr;
556 enic_free_consistent(__rte_unused struct rte_pci_device *hwdev,
557 __rte_unused size_t size,
558 __rte_unused void *vaddr,
559 __rte_unused dma_addr_t dma_handle)
561 /* Nothing to be done */
565 enic_intr_handler(__rte_unused struct rte_intr_handle *handle,
568 struct enic *enic = pmd_priv((struct rte_eth_dev *)arg);
570 vnic_intr_return_all_credits(&enic->intr);
572 enic_log_q_error(enic);
575 int enic_enable(struct enic *enic)
578 struct rte_eth_dev *eth_dev = enic->rte_dev;
580 eth_dev->data->dev_link.link_speed = vnic_dev_port_speed(enic->vdev);
581 eth_dev->data->dev_link.link_duplex = ETH_LINK_FULL_DUPLEX;
582 vnic_dev_notify_set(enic->vdev, -1); /* No Intr for notify */
584 if (enic_clsf_init(enic))
585 dev_warning(enic, "Init of hash table for clsf failed."\
586 "Flow director feature will not work\n");
589 for (index = 0; index < enic->rq_count; index++) {
590 vnic_rq_fill(&enic->rq[index], enic_rq_alloc_buf);
592 /* Need at least one buffer on ring to get going
594 if (vnic_rq_desc_used(&enic->rq[index]) == 0) {
595 dev_err(enic, "Unable to alloc receive buffers\n");
600 for (index = 0; index < enic->wq_count; index++)
601 vnic_wq_enable(&enic->wq[index]);
602 for (index = 0; index < enic->rq_count; index++)
603 vnic_rq_enable(&enic->rq[index]);
605 vnic_dev_enable_wait(enic->vdev);
607 /* Register and enable error interrupt */
608 rte_intr_callback_register(&(enic->pdev->intr_handle),
609 enic_intr_handler, (void *)enic->rte_dev);
611 rte_intr_enable(&(enic->pdev->intr_handle));
612 vnic_intr_unmask(&enic->intr);
617 int enic_alloc_intr_resources(struct enic *enic)
621 dev_info(enic, "vNIC resources used: "\
622 "wq %d rq %d cq %d intr %d\n",
623 enic->wq_count, enic->rq_count,
624 enic->cq_count, enic->intr_count);
626 err = vnic_intr_alloc(enic->vdev, &enic->intr, 0);
628 enic_free_vnic_resources(enic);
633 void enic_free_rq(void *rxq)
635 struct vnic_rq *rq = (struct vnic_rq *)rxq;
636 struct enic *enic = vnic_dev_priv(rq->vdev);
639 vnic_cq_free(&enic->cq[rq->index]);
642 void enic_start_wq(struct enic *enic, uint16_t queue_idx)
644 vnic_wq_enable(&enic->wq[queue_idx]);
647 int enic_stop_wq(struct enic *enic, uint16_t queue_idx)
649 return vnic_wq_disable(&enic->wq[queue_idx]);
652 void enic_start_rq(struct enic *enic, uint16_t queue_idx)
654 vnic_rq_enable(&enic->rq[queue_idx]);
657 int enic_stop_rq(struct enic *enic, uint16_t queue_idx)
659 return vnic_rq_disable(&enic->rq[queue_idx]);
662 int enic_alloc_rq(struct enic *enic, uint16_t queue_idx,
663 unsigned int socket_id, struct rte_mempool *mp,
667 struct vnic_rq *rq = &enic->rq[queue_idx];
669 rq->socket_id = socket_id;
673 if (nb_desc > enic->config.rq_desc_count) {
675 "RQ %d - number of rx desc in cmd line (%d)"\
676 "is greater than that in the UCSM/CIMC adapter"\
677 "policy. Applying the value in the adapter "\
679 queue_idx, nb_desc, enic->config.rq_desc_count);
680 } else if (nb_desc != enic->config.rq_desc_count) {
681 enic->config.rq_desc_count = nb_desc;
683 "RX Queues - effective number of descs:%d\n",
688 /* Allocate queue resources */
689 err = vnic_rq_alloc(enic->vdev, &enic->rq[queue_idx], queue_idx,
690 enic->config.rq_desc_count,
691 sizeof(struct rq_enet_desc));
693 dev_err(enic, "error in allocation of rq\n");
697 err = vnic_cq_alloc(enic->vdev, &enic->cq[queue_idx], queue_idx,
698 socket_id, enic->config.rq_desc_count,
699 sizeof(struct cq_enet_rq_desc));
702 dev_err(enic, "error in allocation of cq for rq\n");
708 void enic_free_wq(void *txq)
710 struct vnic_wq *wq = (struct vnic_wq *)txq;
711 struct enic *enic = vnic_dev_priv(wq->vdev);
714 vnic_cq_free(&enic->cq[enic->rq_count + wq->index]);
717 int enic_alloc_wq(struct enic *enic, uint16_t queue_idx,
718 unsigned int socket_id, uint16_t nb_desc)
721 struct vnic_wq *wq = &enic->wq[queue_idx];
722 unsigned int cq_index = enic_cq_wq(enic, queue_idx);
724 wq->socket_id = socket_id;
726 if (nb_desc > enic->config.wq_desc_count) {
728 "WQ %d - number of tx desc in cmd line (%d)"\
729 "is greater than that in the UCSM/CIMC adapter"\
730 "policy. Applying the value in the adapter "\
732 queue_idx, nb_desc, enic->config.wq_desc_count);
733 } else if (nb_desc != enic->config.wq_desc_count) {
734 enic->config.wq_desc_count = nb_desc;
736 "TX Queues - effective number of descs:%d\n",
741 /* Allocate queue resources */
742 err = vnic_wq_alloc(enic->vdev, &enic->wq[queue_idx], queue_idx,
743 enic->config.wq_desc_count,
744 sizeof(struct wq_enet_desc));
746 dev_err(enic, "error in allocation of wq\n");
750 err = vnic_cq_alloc(enic->vdev, &enic->cq[cq_index], cq_index,
751 socket_id, enic->config.wq_desc_count,
752 sizeof(struct cq_enet_wq_desc));
755 dev_err(enic, "error in allocation of cq for wq\n");
761 int enic_disable(struct enic *enic)
766 vnic_intr_mask(&enic->intr);
767 (void)vnic_intr_masked(&enic->intr); /* flush write */
769 vnic_dev_disable(enic->vdev);
771 enic_clsf_destroy(enic);
773 if (!enic_is_sriov_vf(enic))
774 vnic_dev_del_addr(enic->vdev, enic->mac_addr);
776 for (i = 0; i < enic->wq_count; i++) {
777 err = vnic_wq_disable(&enic->wq[i]);
781 for (i = 0; i < enic->rq_count; i++) {
782 err = vnic_rq_disable(&enic->rq[i]);
787 vnic_dev_set_reset_flag(enic->vdev, 1);
788 vnic_dev_notify_unset(enic->vdev);
790 for (i = 0; i < enic->wq_count; i++)
791 vnic_wq_clean(&enic->wq[i], enic_free_wq_buf);
792 for (i = 0; i < enic->rq_count; i++)
793 vnic_rq_clean(&enic->rq[i], enic_free_rq_buf);
794 for (i = 0; i < enic->cq_count; i++)
795 vnic_cq_clean(&enic->cq[i]);
796 vnic_intr_clean(&enic->intr);
801 static int enic_dev_wait(struct vnic_dev *vdev,
802 int (*start)(struct vnic_dev *, int),
803 int (*finished)(struct vnic_dev *, int *),
810 err = start(vdev, arg);
814 /* Wait for func to complete...2 seconds max */
815 for (i = 0; i < 2000; i++) {
816 err = finished(vdev, &done);
826 static int enic_dev_open(struct enic *enic)
830 err = enic_dev_wait(enic->vdev, vnic_dev_open,
831 vnic_dev_open_done, 0);
833 dev_err(enic_get_dev(enic),
834 "vNIC device open failed, err %d\n", err);
839 static int enic_set_rsskey(struct enic *enic)
841 dma_addr_t rss_key_buf_pa;
842 union vnic_rss_key *rss_key_buf_va = NULL;
843 static union vnic_rss_key rss_key = {
844 .key[0] = {.b = {85, 67, 83, 97, 119, 101, 115, 111, 109, 101}},
845 .key[1] = {.b = {80, 65, 76, 79, 117, 110, 105, 113, 117, 101}},
846 .key[2] = {.b = {76, 73, 78, 85, 88, 114, 111, 99, 107, 115}},
847 .key[3] = {.b = {69, 78, 73, 67, 105, 115, 99, 111, 111, 108}},
852 snprintf((char *)name, NAME_MAX, "rss_key-%s", enic->bdf_name);
853 rss_key_buf_va = enic_alloc_consistent(enic, sizeof(union vnic_rss_key),
854 &rss_key_buf_pa, name);
858 rte_memcpy(rss_key_buf_va, &rss_key, sizeof(union vnic_rss_key));
860 err = enic_set_rss_key(enic,
862 sizeof(union vnic_rss_key));
864 enic_free_consistent(enic->pdev, sizeof(union vnic_rss_key),
865 rss_key_buf_va, rss_key_buf_pa);
870 static int enic_set_rsscpu(struct enic *enic, u8 rss_hash_bits)
872 dma_addr_t rss_cpu_buf_pa;
873 union vnic_rss_cpu *rss_cpu_buf_va = NULL;
878 snprintf((char *)name, NAME_MAX, "rss_cpu-%s", enic->bdf_name);
879 rss_cpu_buf_va = enic_alloc_consistent(enic, sizeof(union vnic_rss_cpu),
880 &rss_cpu_buf_pa, name);
884 for (i = 0; i < (1 << rss_hash_bits); i++)
885 (*rss_cpu_buf_va).cpu[i/4].b[i%4] = i % enic->rq_count;
887 err = enic_set_rss_cpu(enic,
889 sizeof(union vnic_rss_cpu));
891 enic_free_consistent(enic->pdev, sizeof(union vnic_rss_cpu),
892 rss_cpu_buf_va, rss_cpu_buf_pa);
897 static int enic_set_niccfg(struct enic *enic, u8 rss_default_cpu,
898 u8 rss_hash_type, u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable)
900 const u8 tso_ipid_split_en = 0;
903 /* Enable VLAN tag stripping */
905 err = enic_set_nic_cfg(enic,
906 rss_default_cpu, rss_hash_type,
907 rss_hash_bits, rss_base_cpu,
908 rss_enable, tso_ipid_split_en,
909 enic->ig_vlan_strip_en);
914 int enic_set_rss_nic_cfg(struct enic *enic)
916 const u8 rss_default_cpu = 0;
917 const u8 rss_hash_type = NIC_CFG_RSS_HASH_TYPE_IPV4 |
918 NIC_CFG_RSS_HASH_TYPE_TCP_IPV4 |
919 NIC_CFG_RSS_HASH_TYPE_IPV6 |
920 NIC_CFG_RSS_HASH_TYPE_TCP_IPV6;
921 const u8 rss_hash_bits = 7;
922 const u8 rss_base_cpu = 0;
923 u8 rss_enable = ENIC_SETTING(enic, RSS) && (enic->rq_count > 1);
926 if (!enic_set_rsskey(enic)) {
927 if (enic_set_rsscpu(enic, rss_hash_bits)) {
929 dev_warning(enic, "RSS disabled, "\
930 "Failed to set RSS cpu indirection table.");
935 "RSS disabled, Failed to set RSS key.\n");
939 return enic_set_niccfg(enic, rss_default_cpu, rss_hash_type,
940 rss_hash_bits, rss_base_cpu, rss_enable);
943 int enic_setup_finish(struct enic *enic)
947 ret = enic_set_rss_nic_cfg(enic);
949 dev_err(enic, "Failed to config nic, aborting.\n");
953 vnic_dev_add_addr(enic->vdev, enic->mac_addr);
956 vnic_dev_packet_filter(enic->vdev,
969 void enic_add_packet_filter(struct enic *enic)
971 /* Args -> directed, multicast, broadcast, promisc, allmulti */
972 vnic_dev_packet_filter(enic->vdev, 1, 1, 1,
973 enic->promisc, enic->allmulti);
976 int enic_get_link_status(struct enic *enic)
978 return vnic_dev_link_status(enic->vdev);
981 static void enic_dev_deinit(struct enic *enic)
983 struct rte_eth_dev *eth_dev = enic->rte_dev;
985 if (eth_dev->data->mac_addrs)
986 rte_free(eth_dev->data->mac_addrs);
990 int enic_set_vnic_res(struct enic *enic)
992 struct rte_eth_dev *eth_dev = enic->rte_dev;
994 if ((enic->rq_count < eth_dev->data->nb_rx_queues) ||
995 (enic->wq_count < eth_dev->data->nb_tx_queues)) {
996 dev_err(dev, "Not enough resources configured, aborting\n");
1000 enic->rq_count = eth_dev->data->nb_rx_queues;
1001 enic->wq_count = eth_dev->data->nb_tx_queues;
1002 if (enic->cq_count < (enic->rq_count + enic->wq_count)) {
1003 dev_err(dev, "Not enough resources configured, aborting\n");
1007 enic->cq_count = enic->rq_count + enic->wq_count;
1011 static int enic_dev_init(struct enic *enic)
1014 struct rte_eth_dev *eth_dev = enic->rte_dev;
1016 vnic_dev_intr_coal_timer_info_default(enic->vdev);
1018 /* Get vNIC configuration
1020 err = enic_get_vnic_config(enic);
1022 dev_err(dev, "Get vNIC configuration failed, aborting\n");
1026 eth_dev->data->mac_addrs = rte_zmalloc("enic_mac_addr", ETH_ALEN, 0);
1027 if (!eth_dev->data->mac_addrs) {
1028 dev_err(enic, "mac addr storage alloc failed, aborting.\n");
1031 ether_addr_copy((struct ether_addr *) enic->mac_addr,
1032 ð_dev->data->mac_addrs[0]);
1035 /* Get available resource counts
1037 enic_get_res_counts(enic);
1039 vnic_dev_set_reset_flag(enic->vdev, 0);
1045 int enic_probe(struct enic *enic)
1047 struct rte_pci_device *pdev = enic->pdev;
1050 dev_info(enic, " Initializing ENIC PMD version %s\n", DRV_VERSION);
1052 enic->bar0.vaddr = (void *)pdev->mem_resource[0].addr;
1053 enic->bar0.len = pdev->mem_resource[0].len;
1055 /* Register vNIC device */
1056 enic->vdev = vnic_dev_register(NULL, enic, enic->pdev, &enic->bar0, 1);
1058 dev_err(enic, "vNIC registration failed, aborting\n");
1062 vnic_register_cbacks(enic->vdev,
1063 enic_alloc_consistent,
1064 enic_free_consistent);
1066 /* Issue device open to get device in known state */
1067 err = enic_dev_open(enic);
1069 dev_err(enic, "vNIC dev open failed, aborting\n");
1070 goto err_out_unregister;
1073 /* Set ingress vlan rewrite mode before vnic initialization */
1074 err = vnic_dev_set_ig_vlan_rewrite_mode(enic->vdev,
1075 IG_VLAN_REWRITE_MODE_PRIORITY_TAG_DEFAULT_VLAN);
1078 "Failed to set ingress vlan rewrite mode, aborting.\n");
1079 goto err_out_dev_close;
1082 /* Issue device init to initialize the vnic-to-switch link.
1083 * We'll start with carrier off and wait for link UP
1084 * notification later to turn on carrier. We don't need
1085 * to wait here for the vnic-to-switch link initialization
1086 * to complete; link UP notification is the indication that
1087 * the process is complete.
1090 err = vnic_dev_init(enic->vdev, 0);
1092 dev_err(enic, "vNIC dev init failed, aborting\n");
1093 goto err_out_dev_close;
1096 err = enic_dev_init(enic);
1098 dev_err(enic, "Device initialization failed, aborting\n");
1099 goto err_out_dev_close;
1105 vnic_dev_close(enic->vdev);
1107 vnic_dev_unregister(enic->vdev);
1112 void enic_remove(struct enic *enic)
1114 enic_dev_deinit(enic);
1115 vnic_dev_close(enic->vdev);
1116 vnic_dev_unregister(enic->vdev);