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, enic->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 cq_idx = enic_cq_rq(enic, enic_sop_rq(index));
243 vnic_rq_init(&enic->rq[enic_sop_rq(index)],
245 error_interrupt_enable,
246 error_interrupt_offset);
248 data_rq = &enic->rq[enic_data_rq(index)];
250 vnic_rq_init(data_rq,
252 error_interrupt_enable,
253 error_interrupt_offset);
255 vnic_cq_init(&enic->cq[cq_idx],
256 0 /* flow_control_enable */,
257 1 /* color_enable */,
260 1 /* cq_tail_color */,
261 0 /* interrupt_enable */,
262 1 /* cq_entry_enable */,
263 0 /* cq_message_enable */,
264 0 /* interrupt offset */,
265 0 /* cq_message_addr */);
268 for (index = 0; index < enic->wq_count; index++) {
269 vnic_wq_init(&enic->wq[index],
270 enic_cq_wq(enic, index),
271 error_interrupt_enable,
272 error_interrupt_offset);
274 cq_idx = enic_cq_wq(enic, index);
275 vnic_cq_init(&enic->cq[cq_idx],
276 0 /* flow_control_enable */,
277 1 /* color_enable */,
280 1 /* cq_tail_color */,
281 0 /* interrupt_enable */,
282 0 /* cq_entry_enable */,
283 1 /* cq_message_enable */,
284 0 /* interrupt offset */,
285 (u64)enic->wq[index].cqmsg_rz->phys_addr);
288 vnic_intr_init(&enic->intr,
289 enic->config.intr_timer_usec,
290 enic->config.intr_timer_type,
291 /*mask_on_assertion*/1);
296 enic_alloc_rx_queue_mbufs(struct enic *enic, struct vnic_rq *rq)
299 struct rq_enet_desc *rqd = rq->ring.descs;
306 dev_debug(enic, "queue %u, allocating %u rx queue mbufs\n", rq->index,
307 rq->ring.desc_count);
309 for (i = 0; i < rq->ring.desc_count; i++, rqd++) {
310 mb = rte_mbuf_raw_alloc(rq->mp);
312 dev_err(enic, "RX mbuf alloc failed queue_id=%u\n",
313 (unsigned)rq->index);
317 dma_addr = (dma_addr_t)(mb->buf_physaddr
318 + RTE_PKTMBUF_HEADROOM);
319 rq_enet_desc_enc(rqd, dma_addr,
320 (rq->is_sop ? RQ_ENET_TYPE_ONLY_SOP
321 : RQ_ENET_TYPE_NOT_SOP),
322 mb->buf_len - RTE_PKTMBUF_HEADROOM);
323 rq->mbuf_ring[i] = mb;
326 /* make sure all prior writes are complete before doing the PIO write */
329 /* Post all but the last buffer to VIC. */
330 rq->posted_index = rq->ring.desc_count - 1;
334 dev_debug(enic, "port=%u, qidx=%u, Write %u posted idx, %u sw held\n",
335 enic->port_id, rq->index, rq->posted_index, rq->rx_nb_hold);
336 iowrite32(rq->posted_index, &rq->ctrl->posted_index);
337 iowrite32(0, &rq->ctrl->fetch_index);
345 enic_alloc_consistent(void *priv, size_t size,
346 dma_addr_t *dma_handle, u8 *name)
349 const struct rte_memzone *rz;
351 struct enic *enic = (struct enic *)priv;
352 struct enic_memzone_entry *mze;
354 rz = rte_memzone_reserve_aligned((const char *)name,
355 size, SOCKET_ID_ANY, 0, ENIC_ALIGN);
357 pr_err("%s : Failed to allocate memory requested for %s\n",
363 *dma_handle = (dma_addr_t)rz->phys_addr;
365 mze = rte_malloc("enic memzone entry",
366 sizeof(struct enic_memzone_entry), 0);
369 pr_err("%s : Failed to allocate memory for memzone list\n",
371 rte_memzone_free(rz);
376 rte_spinlock_lock(&enic->memzone_list_lock);
377 LIST_INSERT_HEAD(&enic->memzone_list, mze, entries);
378 rte_spinlock_unlock(&enic->memzone_list_lock);
384 enic_free_consistent(void *priv,
385 __rte_unused size_t size,
387 dma_addr_t dma_handle)
389 struct enic_memzone_entry *mze;
390 struct enic *enic = (struct enic *)priv;
392 rte_spinlock_lock(&enic->memzone_list_lock);
393 LIST_FOREACH(mze, &enic->memzone_list, entries) {
394 if (mze->rz->addr == vaddr &&
395 mze->rz->phys_addr == dma_handle)
399 rte_spinlock_unlock(&enic->memzone_list_lock);
401 "Tried to free memory, but couldn't find it in the memzone list\n");
404 LIST_REMOVE(mze, entries);
405 rte_spinlock_unlock(&enic->memzone_list_lock);
406 rte_memzone_free(mze->rz);
411 enic_intr_handler(__rte_unused struct rte_intr_handle *handle,
414 struct enic *enic = pmd_priv((struct rte_eth_dev *)arg);
416 vnic_intr_return_all_credits(&enic->intr);
418 enic_log_q_error(enic);
421 int enic_enable(struct enic *enic)
425 struct rte_eth_dev *eth_dev = enic->rte_dev;
427 eth_dev->data->dev_link.link_speed = vnic_dev_port_speed(enic->vdev);
428 eth_dev->data->dev_link.link_duplex = ETH_LINK_FULL_DUPLEX;
429 vnic_dev_notify_set(enic->vdev, -1); /* No Intr for notify */
431 if (enic_clsf_init(enic))
432 dev_warning(enic, "Init of hash table for clsf failed."\
433 "Flow director feature will not work\n");
435 for (index = 0; index < enic->rq_count; index++) {
436 err = enic_alloc_rx_queue_mbufs(enic,
437 &enic->rq[enic_sop_rq(index)]);
439 dev_err(enic, "Failed to alloc sop RX queue mbufs\n");
442 err = enic_alloc_rx_queue_mbufs(enic,
443 &enic->rq[enic_data_rq(index)]);
445 /* release the allocated mbufs for the sop rq*/
446 enic_rxmbuf_queue_release(enic,
447 &enic->rq[enic_sop_rq(index)]);
449 dev_err(enic, "Failed to alloc data RX queue mbufs\n");
454 for (index = 0; index < enic->wq_count; index++)
455 enic_start_wq(enic, index);
456 for (index = 0; index < enic->rq_count; index++)
457 enic_start_rq(enic, index);
459 vnic_dev_add_addr(enic->vdev, enic->mac_addr);
461 vnic_dev_enable_wait(enic->vdev);
463 /* Register and enable error interrupt */
464 rte_intr_callback_register(&(enic->pdev->intr_handle),
465 enic_intr_handler, (void *)enic->rte_dev);
467 rte_intr_enable(&(enic->pdev->intr_handle));
468 vnic_intr_unmask(&enic->intr);
473 int enic_alloc_intr_resources(struct enic *enic)
477 dev_info(enic, "vNIC resources used: "\
478 "wq %d rq %d cq %d intr %d\n",
479 enic->wq_count, enic_vnic_rq_count(enic),
480 enic->cq_count, enic->intr_count);
482 err = vnic_intr_alloc(enic->vdev, &enic->intr, 0);
484 enic_free_vnic_resources(enic);
489 void enic_free_rq(void *rxq)
491 struct vnic_rq *rq_sop, *rq_data;
497 rq_sop = (struct vnic_rq *)rxq;
498 enic = vnic_dev_priv(rq_sop->vdev);
499 rq_data = &enic->rq[rq_sop->data_queue_idx];
501 enic_rxmbuf_queue_release(enic, rq_sop);
503 enic_rxmbuf_queue_release(enic, rq_data);
505 rte_free(rq_sop->mbuf_ring);
507 rte_free(rq_data->mbuf_ring);
509 rq_sop->mbuf_ring = NULL;
510 rq_data->mbuf_ring = NULL;
512 vnic_rq_free(rq_sop);
514 vnic_rq_free(rq_data);
516 vnic_cq_free(&enic->cq[rq_sop->index]);
519 void enic_start_wq(struct enic *enic, uint16_t queue_idx)
521 vnic_wq_enable(&enic->wq[queue_idx]);
524 int enic_stop_wq(struct enic *enic, uint16_t queue_idx)
526 return vnic_wq_disable(&enic->wq[queue_idx]);
529 void enic_start_rq(struct enic *enic, uint16_t queue_idx)
531 struct vnic_rq *rq_sop = &enic->rq[enic_sop_rq(queue_idx)];
532 struct vnic_rq *rq_data = &enic->rq[rq_sop->data_queue_idx];
535 vnic_rq_enable(rq_data);
537 vnic_rq_enable(rq_sop);
541 int enic_stop_rq(struct enic *enic, uint16_t queue_idx)
543 int ret1 = 0, ret2 = 0;
545 struct vnic_rq *rq_sop = &enic->rq[enic_sop_rq(queue_idx)];
546 struct vnic_rq *rq_data = &enic->rq[rq_sop->data_queue_idx];
548 ret2 = vnic_rq_disable(rq_sop);
551 ret1 = vnic_rq_disable(rq_data);
559 int enic_alloc_rq(struct enic *enic, uint16_t queue_idx,
560 unsigned int socket_id, struct rte_mempool *mp,
564 uint16_t sop_queue_idx = enic_sop_rq(queue_idx);
565 uint16_t data_queue_idx = enic_data_rq(queue_idx);
566 struct vnic_rq *rq_sop = &enic->rq[sop_queue_idx];
567 struct vnic_rq *rq_data = &enic->rq[data_queue_idx];
568 unsigned int mbuf_size, mbufs_per_pkt;
569 unsigned int nb_sop_desc, nb_data_desc;
570 uint16_t min_sop, max_sop, min_data, max_data;
573 rq_sop->data_queue_idx = data_queue_idx;
575 rq_data->data_queue_idx = 0;
576 rq_sop->socket_id = socket_id;
578 rq_data->socket_id = socket_id;
582 mbuf_size = (uint16_t)(rte_pktmbuf_data_room_size(mp) -
583 RTE_PKTMBUF_HEADROOM);
585 if (enic->rte_dev->data->dev_conf.rxmode.enable_scatter) {
586 dev_info(enic, "Scatter rx mode enabled\n");
587 /* ceil((mtu + ETHER_HDR_LEN + 4)/mbuf_size) */
588 mbufs_per_pkt = ((enic->config.mtu + ETHER_HDR_LEN + 4) +
589 (mbuf_size - 1)) / mbuf_size;
591 dev_info(enic, "Scatter rx mode disabled\n");
595 if (mbufs_per_pkt > 1) {
596 dev_info(enic, "Scatter rx mode in use\n");
599 dev_info(enic, "Scatter rx mode not being used\n");
603 /* number of descriptors have to be a multiple of 32 */
604 nb_sop_desc = (nb_desc / mbufs_per_pkt) & ~0x1F;
605 nb_data_desc = (nb_desc - nb_sop_desc) & ~0x1F;
607 rq_sop->max_mbufs_per_pkt = mbufs_per_pkt;
608 rq_data->max_mbufs_per_pkt = mbufs_per_pkt;
610 if (mbufs_per_pkt > 1) {
612 max_sop = ((enic->config.rq_desc_count /
613 (mbufs_per_pkt - 1)) & ~0x1F);
614 min_data = min_sop * (mbufs_per_pkt - 1);
615 max_data = enic->config.rq_desc_count;
618 max_sop = enic->config.rq_desc_count;
623 if (nb_desc < (min_sop + min_data)) {
625 "Number of rx descs too low, adjusting to minimum\n");
626 nb_sop_desc = min_sop;
627 nb_data_desc = min_data;
628 } else if (nb_desc > (max_sop + max_data)) {
630 "Number of rx_descs too high, adjusting to maximum\n");
631 nb_sop_desc = max_sop;
632 nb_data_desc = max_data;
634 if (mbufs_per_pkt > 1) {
635 dev_info(enic, "For mtu %d and mbuf size %d valid rx descriptor range is %d to %d\n",
636 enic->config.mtu, mbuf_size, min_sop + min_data,
639 dev_info(enic, "Using %d rx descriptors (sop %d, data %d)\n",
640 nb_sop_desc + nb_data_desc, nb_sop_desc, nb_data_desc);
642 /* Allocate sop queue resources */
643 rc = vnic_rq_alloc(enic->vdev, rq_sop, sop_queue_idx,
644 nb_sop_desc, sizeof(struct rq_enet_desc));
646 dev_err(enic, "error in allocation of sop rq\n");
649 nb_sop_desc = rq_sop->ring.desc_count;
651 if (rq_data->in_use) {
652 /* Allocate data queue resources */
653 rc = vnic_rq_alloc(enic->vdev, rq_data, data_queue_idx,
655 sizeof(struct rq_enet_desc));
657 dev_err(enic, "error in allocation of data rq\n");
658 goto err_free_rq_sop;
660 nb_data_desc = rq_data->ring.desc_count;
662 rc = vnic_cq_alloc(enic->vdev, &enic->cq[queue_idx], queue_idx,
663 socket_id, nb_sop_desc + nb_data_desc,
664 sizeof(struct cq_enet_rq_desc));
666 dev_err(enic, "error in allocation of cq for rq\n");
667 goto err_free_rq_data;
670 /* Allocate the mbuf rings */
671 rq_sop->mbuf_ring = (struct rte_mbuf **)
672 rte_zmalloc_socket("rq->mbuf_ring",
673 sizeof(struct rte_mbuf *) * nb_sop_desc,
674 RTE_CACHE_LINE_SIZE, rq_sop->socket_id);
675 if (rq_sop->mbuf_ring == NULL)
678 if (rq_data->in_use) {
679 rq_data->mbuf_ring = (struct rte_mbuf **)
680 rte_zmalloc_socket("rq->mbuf_ring",
681 sizeof(struct rte_mbuf *) * nb_data_desc,
682 RTE_CACHE_LINE_SIZE, rq_sop->socket_id);
683 if (rq_data->mbuf_ring == NULL)
684 goto err_free_sop_mbuf;
690 rte_free(rq_sop->mbuf_ring);
692 /* cleanup on error */
693 vnic_cq_free(&enic->cq[queue_idx]);
696 vnic_rq_free(rq_data);
698 vnic_rq_free(rq_sop);
703 void enic_free_wq(void *txq)
711 wq = (struct vnic_wq *)txq;
712 enic = vnic_dev_priv(wq->vdev);
713 rte_memzone_free(wq->cqmsg_rz);
715 vnic_cq_free(&enic->cq[enic->rq_count + wq->index]);
718 int enic_alloc_wq(struct enic *enic, uint16_t queue_idx,
719 unsigned int socket_id, uint16_t nb_desc)
722 struct vnic_wq *wq = &enic->wq[queue_idx];
723 unsigned int cq_index = enic_cq_wq(enic, queue_idx);
727 wq->socket_id = socket_id;
729 if (nb_desc > enic->config.wq_desc_count) {
731 "WQ %d - number of tx desc in cmd line (%d)"\
732 "is greater than that in the UCSM/CIMC adapter"\
733 "policy. Applying the value in the adapter "\
735 queue_idx, nb_desc, enic->config.wq_desc_count);
736 } else if (nb_desc != enic->config.wq_desc_count) {
737 enic->config.wq_desc_count = nb_desc;
739 "TX Queues - effective number of descs:%d\n",
744 /* Allocate queue resources */
745 err = vnic_wq_alloc(enic->vdev, &enic->wq[queue_idx], queue_idx,
746 enic->config.wq_desc_count,
747 sizeof(struct wq_enet_desc));
749 dev_err(enic, "error in allocation of wq\n");
753 err = vnic_cq_alloc(enic->vdev, &enic->cq[cq_index], cq_index,
754 socket_id, enic->config.wq_desc_count,
755 sizeof(struct cq_enet_wq_desc));
758 dev_err(enic, "error in allocation of cq for wq\n");
761 /* setup up CQ message */
762 snprintf((char *)name, sizeof(name),
763 "vnic_cqmsg-%s-%d-%d", enic->bdf_name, queue_idx,
766 wq->cqmsg_rz = rte_memzone_reserve_aligned((const char *)name,
776 int enic_disable(struct enic *enic)
781 vnic_intr_mask(&enic->intr);
782 (void)vnic_intr_masked(&enic->intr); /* flush write */
784 vnic_dev_disable(enic->vdev);
786 enic_clsf_destroy(enic);
788 if (!enic_is_sriov_vf(enic))
789 vnic_dev_del_addr(enic->vdev, enic->mac_addr);
791 for (i = 0; i < enic->wq_count; i++) {
792 err = vnic_wq_disable(&enic->wq[i]);
796 for (i = 0; i < enic_vnic_rq_count(enic); i++) {
797 if (enic->rq[i].in_use) {
798 err = vnic_rq_disable(&enic->rq[i]);
804 vnic_dev_set_reset_flag(enic->vdev, 1);
805 vnic_dev_notify_unset(enic->vdev);
807 for (i = 0; i < enic->wq_count; i++)
808 vnic_wq_clean(&enic->wq[i], enic_free_wq_buf);
810 for (i = 0; i < enic_vnic_rq_count(enic); i++)
811 if (enic->rq[i].in_use)
812 vnic_rq_clean(&enic->rq[i], enic_free_rq_buf);
813 for (i = 0; i < enic->cq_count; i++)
814 vnic_cq_clean(&enic->cq[i]);
815 vnic_intr_clean(&enic->intr);
820 static int enic_dev_wait(struct vnic_dev *vdev,
821 int (*start)(struct vnic_dev *, int),
822 int (*finished)(struct vnic_dev *, int *),
829 err = start(vdev, arg);
833 /* Wait for func to complete...2 seconds max */
834 for (i = 0; i < 2000; i++) {
835 err = finished(vdev, &done);
845 static int enic_dev_open(struct enic *enic)
849 err = enic_dev_wait(enic->vdev, vnic_dev_open,
850 vnic_dev_open_done, 0);
852 dev_err(enic_get_dev(enic),
853 "vNIC device open failed, err %d\n", err);
858 static int enic_set_rsskey(struct enic *enic)
860 dma_addr_t rss_key_buf_pa;
861 union vnic_rss_key *rss_key_buf_va = NULL;
862 static union vnic_rss_key rss_key = {
864 [0] = {.b = {85, 67, 83, 97, 119, 101, 115, 111, 109, 101}},
865 [1] = {.b = {80, 65, 76, 79, 117, 110, 105, 113, 117, 101}},
866 [2] = {.b = {76, 73, 78, 85, 88, 114, 111, 99, 107, 115}},
867 [3] = {.b = {69, 78, 73, 67, 105, 115, 99, 111, 111, 108}},
873 snprintf((char *)name, NAME_MAX, "rss_key-%s", enic->bdf_name);
874 rss_key_buf_va = enic_alloc_consistent(enic, sizeof(union vnic_rss_key),
875 &rss_key_buf_pa, name);
879 rte_memcpy(rss_key_buf_va, &rss_key, sizeof(union vnic_rss_key));
881 err = enic_set_rss_key(enic,
883 sizeof(union vnic_rss_key));
885 enic_free_consistent(enic, sizeof(union vnic_rss_key),
886 rss_key_buf_va, rss_key_buf_pa);
891 static int enic_set_rsscpu(struct enic *enic, u8 rss_hash_bits)
893 dma_addr_t rss_cpu_buf_pa;
894 union vnic_rss_cpu *rss_cpu_buf_va = NULL;
899 snprintf((char *)name, NAME_MAX, "rss_cpu-%s", enic->bdf_name);
900 rss_cpu_buf_va = enic_alloc_consistent(enic, sizeof(union vnic_rss_cpu),
901 &rss_cpu_buf_pa, name);
905 for (i = 0; i < (1 << rss_hash_bits); i++)
906 (*rss_cpu_buf_va).cpu[i / 4].b[i % 4] =
907 enic_sop_rq(i % enic->rq_count);
909 err = enic_set_rss_cpu(enic,
911 sizeof(union vnic_rss_cpu));
913 enic_free_consistent(enic, sizeof(union vnic_rss_cpu),
914 rss_cpu_buf_va, rss_cpu_buf_pa);
919 static int enic_set_niccfg(struct enic *enic, u8 rss_default_cpu,
920 u8 rss_hash_type, u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable)
922 const u8 tso_ipid_split_en = 0;
925 /* Enable VLAN tag stripping */
927 err = enic_set_nic_cfg(enic,
928 rss_default_cpu, rss_hash_type,
929 rss_hash_bits, rss_base_cpu,
930 rss_enable, tso_ipid_split_en,
931 enic->ig_vlan_strip_en);
936 int enic_set_rss_nic_cfg(struct enic *enic)
938 const u8 rss_default_cpu = 0;
939 const u8 rss_hash_type = NIC_CFG_RSS_HASH_TYPE_IPV4 |
940 NIC_CFG_RSS_HASH_TYPE_TCP_IPV4 |
941 NIC_CFG_RSS_HASH_TYPE_IPV6 |
942 NIC_CFG_RSS_HASH_TYPE_TCP_IPV6;
943 const u8 rss_hash_bits = 7;
944 const u8 rss_base_cpu = 0;
945 u8 rss_enable = ENIC_SETTING(enic, RSS) && (enic->rq_count > 1);
948 if (!enic_set_rsskey(enic)) {
949 if (enic_set_rsscpu(enic, rss_hash_bits)) {
951 dev_warning(enic, "RSS disabled, "\
952 "Failed to set RSS cpu indirection table.");
957 "RSS disabled, Failed to set RSS key.\n");
961 return enic_set_niccfg(enic, rss_default_cpu, rss_hash_type,
962 rss_hash_bits, rss_base_cpu, rss_enable);
965 int enic_setup_finish(struct enic *enic)
969 enic_init_soft_stats(enic);
971 ret = enic_set_rss_nic_cfg(enic);
973 dev_err(enic, "Failed to config nic, aborting.\n");
978 vnic_dev_packet_filter(enic->vdev,
991 void enic_add_packet_filter(struct enic *enic)
993 /* Args -> directed, multicast, broadcast, promisc, allmulti */
994 vnic_dev_packet_filter(enic->vdev, 1, 1, 1,
995 enic->promisc, enic->allmulti);
998 int enic_get_link_status(struct enic *enic)
1000 return vnic_dev_link_status(enic->vdev);
1003 static void enic_dev_deinit(struct enic *enic)
1005 struct rte_eth_dev *eth_dev = enic->rte_dev;
1007 rte_free(eth_dev->data->mac_addrs);
1011 int enic_set_vnic_res(struct enic *enic)
1013 struct rte_eth_dev *eth_dev = enic->rte_dev;
1016 /* With Rx scatter support, two RQs are now used per RQ used by
1019 if (enic->conf_rq_count < eth_dev->data->nb_rx_queues) {
1020 dev_err(dev, "Not enough Receive queues. Requested:%u which uses %d RQs on VIC, Configured:%u\n",
1021 eth_dev->data->nb_rx_queues,
1022 eth_dev->data->nb_rx_queues * 2, enic->conf_rq_count);
1025 if (enic->conf_wq_count < eth_dev->data->nb_tx_queues) {
1026 dev_err(dev, "Not enough Transmit queues. Requested:%u, Configured:%u\n",
1027 eth_dev->data->nb_tx_queues, enic->conf_wq_count);
1031 if (enic->conf_cq_count < (eth_dev->data->nb_rx_queues +
1032 eth_dev->data->nb_tx_queues)) {
1033 dev_err(dev, "Not enough Completion queues. Required:%u, Configured:%u\n",
1034 (eth_dev->data->nb_rx_queues +
1035 eth_dev->data->nb_tx_queues), enic->conf_cq_count);
1040 enic->rq_count = eth_dev->data->nb_rx_queues;
1041 enic->wq_count = eth_dev->data->nb_tx_queues;
1042 enic->cq_count = enic->rq_count + enic->wq_count;
1048 /* The Cisco NIC can send and receive packets up to a max packet size
1049 * determined by the NIC type and firmware. There is also an MTU
1050 * configured into the NIC via the CIMC/UCSM management interface
1051 * which can be overridden by this function (up to the max packet size).
1052 * Depending on the network setup, doing so may cause packet drops
1053 * and unexpected behavior.
1055 int enic_set_mtu(struct enic *enic, uint16_t new_mtu)
1057 uint16_t old_mtu; /* previous setting */
1058 uint16_t config_mtu; /* Value configured into NIC via CIMC/UCSM */
1059 struct rte_eth_dev *eth_dev = enic->rte_dev;
1061 old_mtu = eth_dev->data->mtu;
1062 config_mtu = enic->config.mtu;
1064 /* only works with Rx scatter disabled */
1065 if (enic->rte_dev->data->dev_conf.rxmode.enable_scatter)
1068 if (new_mtu > enic->max_mtu) {
1070 "MTU not updated: requested (%u) greater than max (%u)\n",
1071 new_mtu, enic->max_mtu);
1074 if (new_mtu < ENIC_MIN_MTU) {
1076 "MTU not updated: requested (%u) less than min (%u)\n",
1077 new_mtu, ENIC_MIN_MTU);
1080 if (new_mtu > config_mtu)
1082 "MTU (%u) is greater than value configured in NIC (%u)\n",
1083 new_mtu, config_mtu);
1085 /* update the mtu */
1086 eth_dev->data->mtu = new_mtu;
1088 dev_info(enic, "MTU changed from %u to %u\n", old_mtu, new_mtu);
1092 static int enic_dev_init(struct enic *enic)
1095 struct rte_eth_dev *eth_dev = enic->rte_dev;
1097 vnic_dev_intr_coal_timer_info_default(enic->vdev);
1099 /* Get vNIC configuration
1101 err = enic_get_vnic_config(enic);
1103 dev_err(dev, "Get vNIC configuration failed, aborting\n");
1107 eth_dev->data->mac_addrs = rte_zmalloc("enic_mac_addr", ETH_ALEN, 0);
1108 if (!eth_dev->data->mac_addrs) {
1109 dev_err(enic, "mac addr storage alloc failed, aborting.\n");
1112 ether_addr_copy((struct ether_addr *) enic->mac_addr,
1113 ð_dev->data->mac_addrs[0]);
1116 /* Get available resource counts
1118 enic_get_res_counts(enic);
1120 vnic_dev_set_reset_flag(enic->vdev, 0);
1126 int enic_probe(struct enic *enic)
1128 struct rte_pci_device *pdev = enic->pdev;
1131 dev_debug(enic, " Initializing ENIC PMD version %s\n", DRV_VERSION);
1133 enic->bar0.vaddr = (void *)pdev->mem_resource[0].addr;
1134 enic->bar0.len = pdev->mem_resource[0].len;
1136 /* Register vNIC device */
1137 enic->vdev = vnic_dev_register(NULL, enic, enic->pdev, &enic->bar0, 1);
1139 dev_err(enic, "vNIC registration failed, aborting\n");
1143 LIST_INIT(&enic->memzone_list);
1144 rte_spinlock_init(&enic->memzone_list_lock);
1146 vnic_register_cbacks(enic->vdev,
1147 enic_alloc_consistent,
1148 enic_free_consistent);
1150 /* Issue device open to get device in known state */
1151 err = enic_dev_open(enic);
1153 dev_err(enic, "vNIC dev open failed, aborting\n");
1154 goto err_out_unregister;
1157 /* Set ingress vlan rewrite mode before vnic initialization */
1158 err = vnic_dev_set_ig_vlan_rewrite_mode(enic->vdev,
1159 IG_VLAN_REWRITE_MODE_PASS_THRU);
1162 "Failed to set ingress vlan rewrite mode, aborting.\n");
1163 goto err_out_dev_close;
1166 /* Issue device init to initialize the vnic-to-switch link.
1167 * We'll start with carrier off and wait for link UP
1168 * notification later to turn on carrier. We don't need
1169 * to wait here for the vnic-to-switch link initialization
1170 * to complete; link UP notification is the indication that
1171 * the process is complete.
1174 err = vnic_dev_init(enic->vdev, 0);
1176 dev_err(enic, "vNIC dev init failed, aborting\n");
1177 goto err_out_dev_close;
1180 err = enic_dev_init(enic);
1182 dev_err(enic, "Device initialization failed, aborting\n");
1183 goto err_out_dev_close;
1189 vnic_dev_close(enic->vdev);
1191 vnic_dev_unregister(enic->vdev);
1196 void enic_remove(struct enic *enic)
1198 enic_dev_deinit(enic);
1199 vnic_dev_close(enic->vdev);
1200 vnic_dev_unregister(enic->vdev);