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.
43 #include <rte_memzone.h>
44 #include <rte_malloc.h>
46 #include <rte_string_fns.h>
47 #include <rte_ethdev.h>
49 #include "enic_compat.h"
51 #include "wq_enet_desc.h"
52 #include "rq_enet_desc.h"
53 #include "cq_enet_desc.h"
54 #include "vnic_enet.h"
59 #include "vnic_intr.h"
62 static inline int enic_is_sriov_vf(struct enic *enic)
64 return enic->pdev->id.device_id == PCI_DEVICE_ID_CISCO_VIC_ENET_VF;
67 static int is_zero_addr(uint8_t *addr)
69 return !(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5]);
72 static int is_mcast_addr(uint8_t *addr)
77 static int is_eth_addr_valid(uint8_t *addr)
79 return !is_mcast_addr(addr) && !is_zero_addr(addr);
83 enic_rxmbuf_queue_release(__rte_unused struct enic *enic, struct vnic_rq *rq)
87 if (!rq || !rq->mbuf_ring) {
88 dev_debug(enic, "Pointer to rq or mbuf_ring is NULL");
92 for (i = 0; i < rq->ring.desc_count; i++) {
93 if (rq->mbuf_ring[i]) {
94 rte_pktmbuf_free_seg(rq->mbuf_ring[i]);
95 rq->mbuf_ring[i] = NULL;
100 void enic_set_hdr_split_size(struct enic *enic, u16 split_hdr_size)
102 vnic_set_hdr_split_size(enic->vdev, split_hdr_size);
105 static void enic_free_wq_buf(struct vnic_wq_buf *buf)
107 struct rte_mbuf *mbuf = (struct rte_mbuf *)buf->mb;
109 rte_mempool_put(mbuf->pool, mbuf);
113 static void enic_log_q_error(struct enic *enic)
118 for (i = 0; i < enic->wq_count; i++) {
119 error_status = vnic_wq_error_status(&enic->wq[i]);
121 dev_err(enic, "WQ[%d] error_status %d\n", i,
125 for (i = 0; i < enic_vnic_rq_count(enic); i++) {
126 error_status = vnic_rq_error_status(&enic->rq[i]);
128 dev_err(enic, "RQ[%d] error_status %d\n", i,
133 static void enic_clear_soft_stats(struct enic *enic)
135 struct enic_soft_stats *soft_stats = &enic->soft_stats;
136 rte_atomic64_clear(&soft_stats->rx_nombuf);
137 rte_atomic64_clear(&soft_stats->rx_packet_errors);
140 static void enic_init_soft_stats(struct enic *enic)
142 struct enic_soft_stats *soft_stats = &enic->soft_stats;
143 rte_atomic64_init(&soft_stats->rx_nombuf);
144 rte_atomic64_init(&soft_stats->rx_packet_errors);
145 enic_clear_soft_stats(enic);
148 void enic_dev_stats_clear(struct enic *enic)
150 if (vnic_dev_stats_clear(enic->vdev))
151 dev_err(enic, "Error in clearing stats\n");
152 enic_clear_soft_stats(enic);
155 void enic_dev_stats_get(struct enic *enic, struct rte_eth_stats *r_stats)
157 struct vnic_stats *stats;
158 struct enic_soft_stats *soft_stats = &enic->soft_stats;
159 int64_t rx_truncated;
160 uint64_t rx_packet_errors;
162 if (vnic_dev_stats_dump(enic->vdev, &stats)) {
163 dev_err(enic, "Error in getting stats\n");
167 /* The number of truncated packets can only be calculated by
168 * subtracting a hardware counter from error packets received by
169 * the driver. Note: this causes transient inaccuracies in the
170 * ipackets count. Also, the length of truncated packets are
171 * counted in ibytes even though truncated packets are dropped
172 * which can make ibytes be slightly higher than it should be.
174 rx_packet_errors = rte_atomic64_read(&soft_stats->rx_packet_errors);
175 rx_truncated = rx_packet_errors - stats->rx.rx_errors;
177 r_stats->ipackets = stats->rx.rx_frames_ok - rx_truncated;
178 r_stats->opackets = stats->tx.tx_frames_ok;
180 r_stats->ibytes = stats->rx.rx_bytes_ok;
181 r_stats->obytes = stats->tx.tx_bytes_ok;
183 r_stats->ierrors = stats->rx.rx_errors + stats->rx.rx_drop;
184 r_stats->oerrors = stats->tx.tx_errors;
186 r_stats->imissed = stats->rx.rx_no_bufs + rx_truncated;
188 r_stats->rx_nombuf = rte_atomic64_read(&soft_stats->rx_nombuf);
191 void enic_del_mac_address(struct enic *enic)
193 if (vnic_dev_del_addr(enic->vdev, enic->mac_addr))
194 dev_err(enic, "del mac addr failed\n");
197 void enic_set_mac_address(struct enic *enic, uint8_t *mac_addr)
201 if (!is_eth_addr_valid(mac_addr)) {
202 dev_err(enic, "invalid mac address\n");
206 err = vnic_dev_del_addr(enic->vdev, mac_addr);
208 dev_err(enic, "del mac addr failed\n");
212 ether_addr_copy((struct ether_addr *)mac_addr,
213 (struct ether_addr *)enic->mac_addr);
215 err = vnic_dev_add_addr(enic->vdev, mac_addr);
217 dev_err(enic, "add mac addr failed\n");
223 enic_free_rq_buf(struct rte_mbuf **mbuf)
228 rte_pktmbuf_free(*mbuf);
232 void enic_init_vnic_resources(struct enic *enic)
234 unsigned int error_interrupt_enable = 1;
235 unsigned int error_interrupt_offset = 0;
236 unsigned int index = 0;
238 struct vnic_rq *data_rq;
240 for (index = 0; index < enic->rq_count; index++) {
241 vnic_rq_init(&enic->rq[enic_sop_rq(index)],
242 enic_cq_rq(enic, index),
243 error_interrupt_enable,
244 error_interrupt_offset);
246 data_rq = &enic->rq[enic_data_rq(index)];
248 vnic_rq_init(data_rq,
249 enic_cq_rq(enic, index),
250 error_interrupt_enable,
251 error_interrupt_offset);
253 cq_idx = enic_cq_rq(enic, index);
254 vnic_cq_init(&enic->cq[cq_idx],
255 0 /* flow_control_enable */,
256 1 /* color_enable */,
259 1 /* cq_tail_color */,
260 0 /* interrupt_enable */,
261 1 /* cq_entry_enable */,
262 0 /* cq_message_enable */,
263 0 /* interrupt offset */,
264 0 /* cq_message_addr */);
267 for (index = 0; index < enic->wq_count; index++) {
268 vnic_wq_init(&enic->wq[index],
269 enic_cq_wq(enic, index),
270 error_interrupt_enable,
271 error_interrupt_offset);
273 cq_idx = enic_cq_wq(enic, index);
274 vnic_cq_init(&enic->cq[cq_idx],
275 0 /* flow_control_enable */,
276 1 /* color_enable */,
279 1 /* cq_tail_color */,
280 0 /* interrupt_enable */,
281 0 /* cq_entry_enable */,
282 1 /* cq_message_enable */,
283 0 /* interrupt offset */,
284 (u64)enic->wq[index].cqmsg_rz->phys_addr);
287 vnic_intr_init(&enic->intr,
288 enic->config.intr_timer_usec,
289 enic->config.intr_timer_type,
290 /*mask_on_assertion*/1);
295 enic_alloc_rx_queue_mbufs(struct enic *enic, struct vnic_rq *rq)
298 struct rq_enet_desc *rqd = rq->ring.descs;
305 dev_debug(enic, "queue %u, allocating %u rx queue mbufs\n", rq->index,
306 rq->ring.desc_count);
308 for (i = 0; i < rq->ring.desc_count; i++, rqd++) {
309 mb = rte_mbuf_raw_alloc(rq->mp);
311 dev_err(enic, "RX mbuf alloc failed queue_id=%u\n",
312 (unsigned)rq->index);
316 dma_addr = (dma_addr_t)(mb->buf_physaddr
317 + RTE_PKTMBUF_HEADROOM);
318 rq_enet_desc_enc(rqd, dma_addr,
319 (rq->is_sop ? RQ_ENET_TYPE_ONLY_SOP
320 : RQ_ENET_TYPE_NOT_SOP),
321 mb->buf_len - RTE_PKTMBUF_HEADROOM);
322 rq->mbuf_ring[i] = mb;
325 /* make sure all prior writes are complete before doing the PIO write */
328 /* Post all but the last buffer to VIC. */
329 rq->posted_index = rq->ring.desc_count - 1;
333 dev_debug(enic, "port=%u, qidx=%u, Write %u posted idx, %u sw held\n",
334 enic->port_id, rq->index, rq->posted_index, rq->rx_nb_hold);
335 iowrite32(rq->posted_index, &rq->ctrl->posted_index);
343 enic_alloc_consistent(__rte_unused void *priv, size_t size,
344 dma_addr_t *dma_handle, u8 *name)
347 const struct rte_memzone *rz;
350 rz = rte_memzone_reserve_aligned((const char *)name,
351 size, SOCKET_ID_ANY, 0, ENIC_ALIGN);
353 pr_err("%s : Failed to allocate memory requested for %s\n",
359 *dma_handle = (dma_addr_t)rz->phys_addr;
365 enic_free_consistent(__rte_unused struct rte_pci_device *hwdev,
366 __rte_unused size_t size,
367 __rte_unused void *vaddr,
368 __rte_unused dma_addr_t dma_handle)
370 /* Nothing to be done */
374 enic_intr_handler(__rte_unused struct rte_intr_handle *handle,
377 struct enic *enic = pmd_priv((struct rte_eth_dev *)arg);
379 vnic_intr_return_all_credits(&enic->intr);
381 enic_log_q_error(enic);
384 int enic_enable(struct enic *enic)
388 struct rte_eth_dev *eth_dev = enic->rte_dev;
390 eth_dev->data->dev_link.link_speed = vnic_dev_port_speed(enic->vdev);
391 eth_dev->data->dev_link.link_duplex = ETH_LINK_FULL_DUPLEX;
392 vnic_dev_notify_set(enic->vdev, -1); /* No Intr for notify */
394 if (enic_clsf_init(enic))
395 dev_warning(enic, "Init of hash table for clsf failed."\
396 "Flow director feature will not work\n");
398 for (index = 0; index < enic->rq_count; index++) {
399 err = enic_alloc_rx_queue_mbufs(enic,
400 &enic->rq[enic_sop_rq(index)]);
402 dev_err(enic, "Failed to alloc sop RX queue mbufs\n");
405 err = enic_alloc_rx_queue_mbufs(enic,
406 &enic->rq[enic_data_rq(index)]);
408 /* release the allocated mbufs for the sop rq*/
409 enic_rxmbuf_queue_release(enic,
410 &enic->rq[enic_sop_rq(index)]);
412 dev_err(enic, "Failed to alloc data RX queue mbufs\n");
417 for (index = 0; index < enic->wq_count; index++)
418 enic_start_wq(enic, index);
419 for (index = 0; index < enic->rq_count; index++)
420 enic_start_rq(enic, index);
422 vnic_dev_enable_wait(enic->vdev);
424 /* Register and enable error interrupt */
425 rte_intr_callback_register(&(enic->pdev->intr_handle),
426 enic_intr_handler, (void *)enic->rte_dev);
428 rte_intr_enable(&(enic->pdev->intr_handle));
429 vnic_intr_unmask(&enic->intr);
434 int enic_alloc_intr_resources(struct enic *enic)
438 dev_info(enic, "vNIC resources used: "\
439 "wq %d rq %d cq %d intr %d\n",
440 enic->wq_count, enic_vnic_rq_count(enic),
441 enic->cq_count, enic->intr_count);
443 err = vnic_intr_alloc(enic->vdev, &enic->intr, 0);
445 enic_free_vnic_resources(enic);
450 void enic_free_rq(void *rxq)
452 struct vnic_rq *rq_sop, *rq_data;
458 rq_sop = (struct vnic_rq *)rxq;
459 enic = vnic_dev_priv(rq_sop->vdev);
460 rq_data = &enic->rq[rq_sop->data_queue_idx];
462 enic_rxmbuf_queue_release(enic, rq_sop);
464 enic_rxmbuf_queue_release(enic, rq_data);
466 rte_free(rq_sop->mbuf_ring);
468 rte_free(rq_data->mbuf_ring);
470 rq_sop->mbuf_ring = NULL;
471 rq_data->mbuf_ring = NULL;
473 vnic_rq_free(rq_sop);
475 vnic_rq_free(rq_data);
477 vnic_cq_free(&enic->cq[rq_sop->index]);
480 void enic_start_wq(struct enic *enic, uint16_t queue_idx)
482 vnic_wq_enable(&enic->wq[queue_idx]);
485 int enic_stop_wq(struct enic *enic, uint16_t queue_idx)
487 return vnic_wq_disable(&enic->wq[queue_idx]);
490 void enic_start_rq(struct enic *enic, uint16_t queue_idx)
492 struct vnic_rq *rq_sop = &enic->rq[enic_sop_rq(queue_idx)];
493 struct vnic_rq *rq_data = &enic->rq[rq_sop->data_queue_idx];
496 vnic_rq_enable(rq_data);
498 vnic_rq_enable(rq_sop);
502 int enic_stop_rq(struct enic *enic, uint16_t queue_idx)
504 int ret1 = 0, ret2 = 0;
506 struct vnic_rq *rq_sop = &enic->rq[enic_sop_rq(queue_idx)];
507 struct vnic_rq *rq_data = &enic->rq[rq_sop->data_queue_idx];
509 ret2 = vnic_rq_disable(rq_sop);
512 ret1 = vnic_rq_disable(rq_data);
520 int enic_alloc_rq(struct enic *enic, uint16_t queue_idx,
521 unsigned int socket_id, struct rte_mempool *mp,
525 uint16_t sop_queue_idx = enic_sop_rq(queue_idx);
526 uint16_t data_queue_idx = enic_data_rq(queue_idx);
527 struct vnic_rq *rq_sop = &enic->rq[sop_queue_idx];
528 struct vnic_rq *rq_data = &enic->rq[data_queue_idx];
529 unsigned int mbuf_size, mbufs_per_pkt;
530 unsigned int nb_sop_desc, nb_data_desc;
531 uint16_t min_sop, max_sop, min_data, max_data;
534 rq_sop->data_queue_idx = data_queue_idx;
536 rq_data->data_queue_idx = 0;
537 rq_sop->socket_id = socket_id;
539 rq_data->socket_id = socket_id;
543 mbuf_size = (uint16_t)(rte_pktmbuf_data_room_size(mp) -
544 RTE_PKTMBUF_HEADROOM);
546 if (enic->rte_dev->data->dev_conf.rxmode.enable_scatter) {
547 dev_info(enic, "Scatter rx mode enabled\n");
548 /* ceil((mtu + ETHER_HDR_LEN + 4)/mbuf_size) */
549 mbufs_per_pkt = ((enic->config.mtu + ETHER_HDR_LEN + 4) +
550 (mbuf_size - 1)) / mbuf_size;
552 dev_info(enic, "Scatter rx mode disabled\n");
556 if (mbufs_per_pkt > 1) {
557 dev_info(enic, "Scatter rx mode in use\n");
560 dev_info(enic, "Scatter rx mode not being used\n");
564 /* number of descriptors have to be a multiple of 32 */
565 nb_sop_desc = (nb_desc / mbufs_per_pkt) & ~0x1F;
566 nb_data_desc = (nb_desc - nb_sop_desc) & ~0x1F;
568 rq_sop->max_mbufs_per_pkt = mbufs_per_pkt;
569 rq_data->max_mbufs_per_pkt = mbufs_per_pkt;
571 if (mbufs_per_pkt > 1) {
573 max_sop = ((enic->config.rq_desc_count /
574 (mbufs_per_pkt - 1)) & ~0x1F);
575 min_data = min_sop * (mbufs_per_pkt - 1);
576 max_data = enic->config.rq_desc_count;
579 max_sop = enic->config.rq_desc_count;
584 if (nb_desc < (min_sop + min_data)) {
586 "Number of rx descs too low, adjusting to minimum\n");
587 nb_sop_desc = min_sop;
588 nb_data_desc = min_data;
589 } else if (nb_desc > (max_sop + max_data)) {
591 "Number of rx_descs too high, adjusting to maximum\n");
592 nb_sop_desc = max_sop;
593 nb_data_desc = max_data;
595 if (mbufs_per_pkt > 1) {
596 dev_info(enic, "For mtu %d and mbuf size %d valid rx descriptor range is %d to %d\n",
597 enic->config.mtu, mbuf_size, min_sop + min_data,
600 dev_info(enic, "Using %d rx descriptors (sop %d, data %d)\n",
601 nb_sop_desc + nb_data_desc, nb_sop_desc, nb_data_desc);
603 /* Allocate sop queue resources */
604 rc = vnic_rq_alloc(enic->vdev, rq_sop, sop_queue_idx,
605 nb_sop_desc, sizeof(struct rq_enet_desc));
607 dev_err(enic, "error in allocation of sop rq\n");
610 nb_sop_desc = rq_sop->ring.desc_count;
612 if (rq_data->in_use) {
613 /* Allocate data queue resources */
614 rc = vnic_rq_alloc(enic->vdev, rq_data, data_queue_idx,
616 sizeof(struct rq_enet_desc));
618 dev_err(enic, "error in allocation of data rq\n");
619 goto err_free_rq_sop;
621 nb_data_desc = rq_data->ring.desc_count;
623 rc = vnic_cq_alloc(enic->vdev, &enic->cq[queue_idx], queue_idx,
624 socket_id, nb_sop_desc + nb_data_desc,
625 sizeof(struct cq_enet_rq_desc));
627 dev_err(enic, "error in allocation of cq for rq\n");
628 goto err_free_rq_data;
631 /* Allocate the mbuf rings */
632 rq_sop->mbuf_ring = (struct rte_mbuf **)
633 rte_zmalloc_socket("rq->mbuf_ring",
634 sizeof(struct rte_mbuf *) * nb_sop_desc,
635 RTE_CACHE_LINE_SIZE, rq_sop->socket_id);
636 if (rq_sop->mbuf_ring == NULL)
639 if (rq_data->in_use) {
640 rq_data->mbuf_ring = (struct rte_mbuf **)
641 rte_zmalloc_socket("rq->mbuf_ring",
642 sizeof(struct rte_mbuf *) * nb_data_desc,
643 RTE_CACHE_LINE_SIZE, rq_sop->socket_id);
644 if (rq_data->mbuf_ring == NULL)
645 goto err_free_sop_mbuf;
651 rte_free(rq_sop->mbuf_ring);
653 /* cleanup on error */
654 vnic_cq_free(&enic->cq[queue_idx]);
657 vnic_rq_free(rq_data);
659 vnic_rq_free(rq_sop);
664 void enic_free_wq(void *txq)
672 wq = (struct vnic_wq *)txq;
673 enic = vnic_dev_priv(wq->vdev);
674 rte_memzone_free(wq->cqmsg_rz);
676 vnic_cq_free(&enic->cq[enic->rq_count + wq->index]);
679 int enic_alloc_wq(struct enic *enic, uint16_t queue_idx,
680 unsigned int socket_id, uint16_t nb_desc)
683 struct vnic_wq *wq = &enic->wq[queue_idx];
684 unsigned int cq_index = enic_cq_wq(enic, queue_idx);
688 wq->socket_id = socket_id;
690 if (nb_desc > enic->config.wq_desc_count) {
692 "WQ %d - number of tx desc in cmd line (%d)"\
693 "is greater than that in the UCSM/CIMC adapter"\
694 "policy. Applying the value in the adapter "\
696 queue_idx, nb_desc, enic->config.wq_desc_count);
697 } else if (nb_desc != enic->config.wq_desc_count) {
698 enic->config.wq_desc_count = nb_desc;
700 "TX Queues - effective number of descs:%d\n",
705 /* Allocate queue resources */
706 err = vnic_wq_alloc(enic->vdev, &enic->wq[queue_idx], queue_idx,
707 enic->config.wq_desc_count,
708 sizeof(struct wq_enet_desc));
710 dev_err(enic, "error in allocation of wq\n");
714 err = vnic_cq_alloc(enic->vdev, &enic->cq[cq_index], cq_index,
715 socket_id, enic->config.wq_desc_count,
716 sizeof(struct cq_enet_wq_desc));
719 dev_err(enic, "error in allocation of cq for wq\n");
722 /* setup up CQ message */
723 snprintf((char *)name, sizeof(name),
724 "vnic_cqmsg-%s-%d-%d", enic->bdf_name, queue_idx,
727 wq->cqmsg_rz = rte_memzone_reserve_aligned((const char *)name,
737 int enic_disable(struct enic *enic)
742 vnic_intr_mask(&enic->intr);
743 (void)vnic_intr_masked(&enic->intr); /* flush write */
745 vnic_dev_disable(enic->vdev);
747 enic_clsf_destroy(enic);
749 if (!enic_is_sriov_vf(enic))
750 vnic_dev_del_addr(enic->vdev, enic->mac_addr);
752 for (i = 0; i < enic->wq_count; i++) {
753 err = vnic_wq_disable(&enic->wq[i]);
757 for (i = 0; i < enic_vnic_rq_count(enic); i++) {
758 if (enic->rq[i].in_use) {
759 err = vnic_rq_disable(&enic->rq[i]);
765 vnic_dev_set_reset_flag(enic->vdev, 1);
766 vnic_dev_notify_unset(enic->vdev);
768 for (i = 0; i < enic->wq_count; i++)
769 vnic_wq_clean(&enic->wq[i], enic_free_wq_buf);
771 for (i = 0; i < enic_vnic_rq_count(enic); i++)
772 if (enic->rq[i].in_use)
773 vnic_rq_clean(&enic->rq[i], enic_free_rq_buf);
774 for (i = 0; i < enic->cq_count; i++)
775 vnic_cq_clean(&enic->cq[i]);
776 vnic_intr_clean(&enic->intr);
781 static int enic_dev_wait(struct vnic_dev *vdev,
782 int (*start)(struct vnic_dev *, int),
783 int (*finished)(struct vnic_dev *, int *),
790 err = start(vdev, arg);
794 /* Wait for func to complete...2 seconds max */
795 for (i = 0; i < 2000; i++) {
796 err = finished(vdev, &done);
806 static int enic_dev_open(struct enic *enic)
810 err = enic_dev_wait(enic->vdev, vnic_dev_open,
811 vnic_dev_open_done, 0);
813 dev_err(enic_get_dev(enic),
814 "vNIC device open failed, err %d\n", err);
819 static int enic_set_rsskey(struct enic *enic)
821 dma_addr_t rss_key_buf_pa;
822 union vnic_rss_key *rss_key_buf_va = NULL;
823 static union vnic_rss_key rss_key = {
825 [0] = {.b = {85, 67, 83, 97, 119, 101, 115, 111, 109, 101}},
826 [1] = {.b = {80, 65, 76, 79, 117, 110, 105, 113, 117, 101}},
827 [2] = {.b = {76, 73, 78, 85, 88, 114, 111, 99, 107, 115}},
828 [3] = {.b = {69, 78, 73, 67, 105, 115, 99, 111, 111, 108}},
834 snprintf((char *)name, NAME_MAX, "rss_key-%s", enic->bdf_name);
835 rss_key_buf_va = enic_alloc_consistent(enic, sizeof(union vnic_rss_key),
836 &rss_key_buf_pa, name);
840 rte_memcpy(rss_key_buf_va, &rss_key, sizeof(union vnic_rss_key));
842 err = enic_set_rss_key(enic,
844 sizeof(union vnic_rss_key));
846 enic_free_consistent(enic->pdev, sizeof(union vnic_rss_key),
847 rss_key_buf_va, rss_key_buf_pa);
852 static int enic_set_rsscpu(struct enic *enic, u8 rss_hash_bits)
854 dma_addr_t rss_cpu_buf_pa;
855 union vnic_rss_cpu *rss_cpu_buf_va = NULL;
860 snprintf((char *)name, NAME_MAX, "rss_cpu-%s", enic->bdf_name);
861 rss_cpu_buf_va = enic_alloc_consistent(enic, sizeof(union vnic_rss_cpu),
862 &rss_cpu_buf_pa, name);
866 for (i = 0; i < (1 << rss_hash_bits); i++)
867 (*rss_cpu_buf_va).cpu[i/4].b[i%4] = i % enic->rq_count;
869 err = enic_set_rss_cpu(enic,
871 sizeof(union vnic_rss_cpu));
873 enic_free_consistent(enic->pdev, sizeof(union vnic_rss_cpu),
874 rss_cpu_buf_va, rss_cpu_buf_pa);
879 static int enic_set_niccfg(struct enic *enic, u8 rss_default_cpu,
880 u8 rss_hash_type, u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable)
882 const u8 tso_ipid_split_en = 0;
885 /* Enable VLAN tag stripping */
887 err = enic_set_nic_cfg(enic,
888 rss_default_cpu, rss_hash_type,
889 rss_hash_bits, rss_base_cpu,
890 rss_enable, tso_ipid_split_en,
891 enic->ig_vlan_strip_en);
896 int enic_set_rss_nic_cfg(struct enic *enic)
898 const u8 rss_default_cpu = 0;
899 const u8 rss_hash_type = NIC_CFG_RSS_HASH_TYPE_IPV4 |
900 NIC_CFG_RSS_HASH_TYPE_TCP_IPV4 |
901 NIC_CFG_RSS_HASH_TYPE_IPV6 |
902 NIC_CFG_RSS_HASH_TYPE_TCP_IPV6;
903 const u8 rss_hash_bits = 7;
904 const u8 rss_base_cpu = 0;
905 u8 rss_enable = ENIC_SETTING(enic, RSS) && (enic->rq_count > 1);
908 if (!enic_set_rsskey(enic)) {
909 if (enic_set_rsscpu(enic, rss_hash_bits)) {
911 dev_warning(enic, "RSS disabled, "\
912 "Failed to set RSS cpu indirection table.");
917 "RSS disabled, Failed to set RSS key.\n");
921 return enic_set_niccfg(enic, rss_default_cpu, rss_hash_type,
922 rss_hash_bits, rss_base_cpu, rss_enable);
925 int enic_setup_finish(struct enic *enic)
929 enic_init_soft_stats(enic);
931 ret = enic_set_rss_nic_cfg(enic);
933 dev_err(enic, "Failed to config nic, aborting.\n");
937 vnic_dev_add_addr(enic->vdev, enic->mac_addr);
940 vnic_dev_packet_filter(enic->vdev,
953 void enic_add_packet_filter(struct enic *enic)
955 /* Args -> directed, multicast, broadcast, promisc, allmulti */
956 vnic_dev_packet_filter(enic->vdev, 1, 1, 1,
957 enic->promisc, enic->allmulti);
960 int enic_get_link_status(struct enic *enic)
962 return vnic_dev_link_status(enic->vdev);
965 static void enic_dev_deinit(struct enic *enic)
967 struct rte_eth_dev *eth_dev = enic->rte_dev;
969 rte_free(eth_dev->data->mac_addrs);
973 int enic_set_vnic_res(struct enic *enic)
975 struct rte_eth_dev *eth_dev = enic->rte_dev;
978 /* With Rx scatter support, two RQs are now used per RQ used by
981 if (enic->rq_count < (eth_dev->data->nb_rx_queues * 2)) {
982 dev_err(dev, "Not enough Receive queues. Requested:%u which uses %d RQs on VIC, Configured:%u\n",
983 eth_dev->data->nb_rx_queues,
984 eth_dev->data->nb_rx_queues * 2, enic->rq_count);
987 if (enic->wq_count < eth_dev->data->nb_tx_queues) {
988 dev_err(dev, "Not enough Transmit queues. Requested:%u, Configured:%u\n",
989 eth_dev->data->nb_tx_queues, enic->wq_count);
993 if (enic->cq_count < (enic->rq_count + enic->wq_count)) {
994 dev_err(dev, "Not enough Completion queues. Required:%u, Configured:%u\n",
995 enic->rq_count + enic->wq_count, enic->cq_count);
1000 enic->rq_count = eth_dev->data->nb_rx_queues;
1001 enic->wq_count = eth_dev->data->nb_tx_queues;
1002 enic->cq_count = enic->rq_count + enic->wq_count;
1008 static int enic_dev_init(struct enic *enic)
1011 struct rte_eth_dev *eth_dev = enic->rte_dev;
1013 vnic_dev_intr_coal_timer_info_default(enic->vdev);
1015 /* Get vNIC configuration
1017 err = enic_get_vnic_config(enic);
1019 dev_err(dev, "Get vNIC configuration failed, aborting\n");
1023 eth_dev->data->mac_addrs = rte_zmalloc("enic_mac_addr", ETH_ALEN, 0);
1024 if (!eth_dev->data->mac_addrs) {
1025 dev_err(enic, "mac addr storage alloc failed, aborting.\n");
1028 ether_addr_copy((struct ether_addr *) enic->mac_addr,
1029 ð_dev->data->mac_addrs[0]);
1032 /* Get available resource counts
1034 enic_get_res_counts(enic);
1036 vnic_dev_set_reset_flag(enic->vdev, 0);
1042 int enic_probe(struct enic *enic)
1044 struct rte_pci_device *pdev = enic->pdev;
1047 dev_debug(enic, " Initializing ENIC PMD version %s\n", DRV_VERSION);
1049 enic->bar0.vaddr = (void *)pdev->mem_resource[0].addr;
1050 enic->bar0.len = pdev->mem_resource[0].len;
1052 /* Register vNIC device */
1053 enic->vdev = vnic_dev_register(NULL, enic, enic->pdev, &enic->bar0, 1);
1055 dev_err(enic, "vNIC registration failed, aborting\n");
1059 vnic_register_cbacks(enic->vdev,
1060 enic_alloc_consistent,
1061 enic_free_consistent);
1063 /* Issue device open to get device in known state */
1064 err = enic_dev_open(enic);
1066 dev_err(enic, "vNIC dev open failed, aborting\n");
1067 goto err_out_unregister;
1070 /* Set ingress vlan rewrite mode before vnic initialization */
1071 err = vnic_dev_set_ig_vlan_rewrite_mode(enic->vdev,
1072 IG_VLAN_REWRITE_MODE_PASS_THRU);
1075 "Failed to set ingress vlan rewrite mode, aborting.\n");
1076 goto err_out_dev_close;
1079 /* Issue device init to initialize the vnic-to-switch link.
1080 * We'll start with carrier off and wait for link UP
1081 * notification later to turn on carrier. We don't need
1082 * to wait here for the vnic-to-switch link initialization
1083 * to complete; link UP notification is the indication that
1084 * the process is complete.
1087 err = vnic_dev_init(enic->vdev, 0);
1089 dev_err(enic, "vNIC dev init failed, aborting\n");
1090 goto err_out_dev_close;
1093 err = enic_dev_init(enic);
1095 dev_err(enic, "Device initialization failed, aborting\n");
1096 goto err_out_dev_close;
1102 vnic_dev_close(enic->vdev);
1104 vnic_dev_unregister(enic->vdev);
1109 void enic_remove(struct enic *enic)
1111 enic_dev_deinit(enic);
1112 vnic_dev_close(enic->vdev);
1113 vnic_dev_unregister(enic->vdev);