--- /dev/null
+/*
+ * Copyright 2008-2014 Cisco Systems, Inc. All rights reserved.
+ * Copyright 2007 Nuova Systems, Inc. All rights reserved.
+ *
+ * Copyright (c) 2014, Cisco Systems, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <stdio.h>
+
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <fcntl.h>
+#include <libgen.h>
+
+#include <rte_pci.h>
+#include <rte_memzone.h>
+#include <rte_malloc.h>
+#include <rte_mbuf.h>
+#include <rte_string_fns.h>
+#include <rte_ethdev.h>
+
+#include "enic_compat.h"
+#include "enic.h"
+#include "wq_enet_desc.h"
+#include "rq_enet_desc.h"
+#include "cq_enet_desc.h"
+#include "vnic_enet.h"
+#include "vnic_dev.h"
+#include "vnic_wq.h"
+#include "vnic_rq.h"
+#include "vnic_cq.h"
+#include "vnic_intr.h"
+#include "vnic_nic.h"
+#include "enic_vnic_wq.h"
+
+static inline struct rte_mbuf *
+rte_rxmbuf_alloc(struct rte_mempool *mp)
+{
+ struct rte_mbuf *m;
+
+ m = __rte_mbuf_raw_alloc(mp);
+ __rte_mbuf_sanity_check_raw(m, 0);
+ return m;
+}
+
+
+static inline int enic_is_sriov_vf(struct enic *enic)
+{
+ return enic->pdev->id.device_id == PCI_DEVICE_ID_CISCO_VIC_ENET_VF;
+}
+
+static int is_zero_addr(uint8_t *addr)
+{
+ return !(addr[0] | addr[1] | addr[2] | addr[3] | addr[4] | addr[5]);
+}
+
+static int is_mcast_addr(uint8_t *addr)
+{
+ return addr[0] & 1;
+}
+
+static int is_eth_addr_valid(uint8_t *addr)
+{
+ return !is_mcast_addr(addr) && !is_zero_addr(addr);
+}
+
+static void
+enic_rxmbuf_queue_release(struct enic *enic, struct vnic_rq *rq)
+{
+ uint16_t i;
+
+ if (!rq || !rq->mbuf_ring) {
+ dev_debug(enic, "Pointer to rq or mbuf_ring is NULL");
+ return;
+ }
+
+ for (i = 0; i < enic->config.rq_desc_count; i++) {
+ if (rq->mbuf_ring[i]) {
+ rte_pktmbuf_free_seg(rq->mbuf_ring[i]);
+ rq->mbuf_ring[i] = NULL;
+ }
+ }
+}
+
+
+void enic_set_hdr_split_size(struct enic *enic, u16 split_hdr_size)
+{
+ vnic_set_hdr_split_size(enic->vdev, split_hdr_size);
+}
+
+static void enic_free_wq_buf(__rte_unused struct vnic_wq *wq, struct vnic_wq_buf *buf)
+{
+ struct rte_mbuf *mbuf = (struct rte_mbuf *)buf->os_buf;
+
+ rte_mempool_put(mbuf->pool, mbuf);
+ buf->os_buf = NULL;
+}
+
+static void enic_wq_free_buf(struct vnic_wq *wq,
+ __rte_unused struct cq_desc *cq_desc,
+ struct vnic_wq_buf *buf,
+ __rte_unused void *opaque)
+{
+ enic_free_wq_buf(wq, buf);
+}
+
+static int enic_wq_service(struct vnic_dev *vdev, struct cq_desc *cq_desc,
+ __rte_unused u8 type, u16 q_number, u16 completed_index, void *opaque)
+{
+ struct enic *enic = vnic_dev_priv(vdev);
+
+ vnic_wq_service(&enic->wq[q_number], cq_desc,
+ completed_index, enic_wq_free_buf,
+ opaque);
+
+ return 0;
+}
+
+static void enic_log_q_error(struct enic *enic)
+{
+ unsigned int i;
+ u32 error_status;
+
+ for (i = 0; i < enic->wq_count; i++) {
+ error_status = vnic_wq_error_status(&enic->wq[i]);
+ if (error_status)
+ dev_err(enic, "WQ[%d] error_status %d\n", i,
+ error_status);
+ }
+
+ for (i = 0; i < enic->rq_count; i++) {
+ error_status = vnic_rq_error_status(&enic->rq[i]);
+ if (error_status)
+ dev_err(enic, "RQ[%d] error_status %d\n", i,
+ error_status);
+ }
+}
+
+unsigned int enic_cleanup_wq(struct enic *enic, struct vnic_wq *wq)
+{
+ unsigned int cq = enic_cq_wq(enic, wq->index);
+
+ /* Return the work done */
+ return vnic_cq_service(&enic->cq[cq],
+ -1 /*wq_work_to_do*/, enic_wq_service, NULL);
+}
+
+void enic_post_wq_index(struct vnic_wq *wq)
+{
+ enic_vnic_post_wq_index(wq);
+}
+
+void enic_send_pkt(struct enic *enic, struct vnic_wq *wq,
+ struct rte_mbuf *tx_pkt, unsigned short len,
+ uint8_t sop, uint8_t eop, uint8_t cq_entry,
+ uint16_t ol_flags, uint16_t vlan_tag)
+{
+ struct wq_enet_desc *desc = vnic_wq_next_desc(wq);
+ uint16_t mss = 0;
+ uint8_t vlan_tag_insert = 0;
+ uint64_t bus_addr = (dma_addr_t)
+ (tx_pkt->buf_physaddr + tx_pkt->data_off);
+
+ if (sop) {
+ if (ol_flags & PKT_TX_VLAN_PKT)
+ vlan_tag_insert = 1;
+
+ if (enic->hw_ip_checksum) {
+ if (ol_flags & PKT_TX_IP_CKSUM)
+ mss |= ENIC_CALC_IP_CKSUM;
+
+ if (ol_flags & PKT_TX_TCP_UDP_CKSUM)
+ mss |= ENIC_CALC_TCP_UDP_CKSUM;
+ }
+ }
+
+ wq_enet_desc_enc(desc,
+ bus_addr,
+ len,
+ mss,
+ 0 /* header_length */,
+ 0 /* offload_mode WQ_ENET_OFFLOAD_MODE_CSUM */,
+ eop,
+ cq_entry,
+ 0 /* fcoe_encap */,
+ vlan_tag_insert,
+ vlan_tag,
+ 0 /* loopback */);
+
+ enic_vnic_post_wq(wq, (void *)tx_pkt, bus_addr, len,
+ sop,
+ 1 /*desc_skip_cnt*/,
+ cq_entry,
+ 0 /*compressed send*/,
+ 0 /*wrid*/);
+}
+
+void enic_dev_stats_clear(struct enic *enic)
+{
+ if (vnic_dev_stats_clear(enic->vdev))
+ dev_err(enic, "Error in clearing stats\n");
+}
+
+void enic_dev_stats_get(struct enic *enic, struct rte_eth_stats *r_stats)
+{
+ struct vnic_stats *stats;
+
+ if (vnic_dev_stats_dump(enic->vdev, &stats)) {
+ dev_err(enic, "Error in getting stats\n");
+ return;
+ }
+
+ r_stats->ipackets = stats->rx.rx_frames_ok;
+ r_stats->opackets = stats->tx.tx_frames_ok;
+
+ r_stats->ibytes = stats->rx.rx_bytes_ok;
+ r_stats->obytes = stats->tx.tx_bytes_ok;
+
+ r_stats->ierrors = stats->rx.rx_errors;
+ r_stats->oerrors = stats->tx.tx_errors;
+
+ r_stats->imissed = stats->rx.rx_drop;
+
+ r_stats->imcasts = stats->rx.rx_multicast_frames_ok;
+ r_stats->rx_nombuf = stats->rx.rx_no_bufs;
+}
+
+void enic_del_mac_address(struct enic *enic)
+{
+ if (vnic_dev_del_addr(enic->vdev, enic->mac_addr))
+ dev_err(enic, "del mac addr failed\n");
+}
+
+void enic_set_mac_address(struct enic *enic, uint8_t *mac_addr)
+{
+ int err;
+
+ if (!is_eth_addr_valid(mac_addr)) {
+ dev_err(enic, "invalid mac address\n");
+ return;
+ }
+
+ err = vnic_dev_del_addr(enic->vdev, mac_addr);
+ if (err) {
+ dev_err(enic, "del mac addr failed\n");
+ return;
+ }
+
+ ether_addr_copy((struct ether_addr *)mac_addr,
+ (struct ether_addr *)enic->mac_addr);
+
+ err = vnic_dev_add_addr(enic->vdev, mac_addr);
+ if (err) {
+ dev_err(enic, "add mac addr failed\n");
+ return;
+ }
+}
+
+static void
+enic_free_rq_buf(struct rte_mbuf **mbuf)
+{
+ if (*mbuf == NULL)
+ return;
+
+ rte_pktmbuf_free(*mbuf);
+ mbuf = NULL;
+}
+
+void enic_init_vnic_resources(struct enic *enic)
+{
+ unsigned int error_interrupt_enable = 1;
+ unsigned int error_interrupt_offset = 0;
+ unsigned int index = 0;
+
+ for (index = 0; index < enic->rq_count; index++) {
+ vnic_rq_init(&enic->rq[index],
+ enic_cq_rq(enic, index),
+ error_interrupt_enable,
+ error_interrupt_offset);
+ }
+
+ for (index = 0; index < enic->wq_count; index++) {
+ vnic_wq_init(&enic->wq[index],
+ enic_cq_wq(enic, index),
+ error_interrupt_enable,
+ error_interrupt_offset);
+ }
+
+ vnic_dev_stats_clear(enic->vdev);
+
+ for (index = 0; index < enic->cq_count; index++) {
+ vnic_cq_init(&enic->cq[index],
+ 0 /* flow_control_enable */,
+ 1 /* color_enable */,
+ 0 /* cq_head */,
+ 0 /* cq_tail */,
+ 1 /* cq_tail_color */,
+ 0 /* interrupt_enable */,
+ 1 /* cq_entry_enable */,
+ 0 /* cq_message_enable */,
+ 0 /* interrupt offset */,
+ 0 /* cq_message_addr */);
+ }
+
+ vnic_intr_init(&enic->intr,
+ enic->config.intr_timer_usec,
+ enic->config.intr_timer_type,
+ /*mask_on_assertion*/1);
+}
+
+
+static int
+enic_alloc_rx_queue_mbufs(struct enic *enic, struct vnic_rq *rq)
+{
+ struct rte_mbuf *mb;
+ struct rq_enet_desc *rqd = rq->ring.descs;
+ unsigned i;
+ dma_addr_t dma_addr;
+
+ dev_debug(enic, "queue %u, allocating %u rx queue mbufs\n", rq->index,
+ rq->ring.desc_count);
+
+ for (i = 0; i < rq->ring.desc_count; i++, rqd++) {
+ mb = rte_rxmbuf_alloc(rq->mp);
+ if (mb == NULL) {
+ dev_err(enic, "RX mbuf alloc failed queue_id=%u\n",
+ (unsigned)rq->index);
+ return -ENOMEM;
+ }
+
+ dma_addr = (dma_addr_t)(mb->buf_physaddr + mb->data_off);
+
+ rq_enet_desc_enc(rqd, dma_addr, RQ_ENET_TYPE_ONLY_SOP,
+ mb->buf_len);
+ rq->mbuf_ring[i] = mb;
+ }
+
+ /* make sure all prior writes are complete before doing the PIO write */
+ rte_rmb();
+
+ /* Post all but the last 2 cache lines' worth of descriptors */
+ rq->posted_index = rq->ring.desc_count - (2 * RTE_CACHE_LINE_SIZE
+ / sizeof(struct rq_enet_desc));
+ rq->rx_nb_hold = 0;
+
+ dev_debug(enic, "port=%u, qidx=%u, Write %u posted idx, %u sw held\n",
+ enic->port_id, rq->index, rq->posted_index, rq->rx_nb_hold);
+ iowrite32(rq->posted_index, &rq->ctrl->posted_index);
+ rte_rmb();
+
+ return 0;
+
+}
+
+static void *
+enic_alloc_consistent(__rte_unused void *priv, size_t size,
+ dma_addr_t *dma_handle, u8 *name)
+{
+ void *vaddr;
+ const struct rte_memzone *rz;
+ *dma_handle = 0;
+
+ rz = rte_memzone_reserve_aligned((const char *)name,
+ size, SOCKET_ID_ANY, 0, ENIC_ALIGN);
+ if (!rz) {
+ pr_err("%s : Failed to allocate memory requested for %s\n",
+ __func__, name);
+ return NULL;
+ }
+
+ vaddr = rz->addr;
+ *dma_handle = (dma_addr_t)rz->phys_addr;
+
+ return vaddr;
+}
+
+static void
+enic_free_consistent(__rte_unused struct rte_pci_device *hwdev,
+ __rte_unused size_t size,
+ __rte_unused void *vaddr,
+ __rte_unused dma_addr_t dma_handle)
+{
+ /* Nothing to be done */
+}
+
+static void
+enic_intr_handler(__rte_unused struct rte_intr_handle *handle,
+ void *arg)
+{
+ struct enic *enic = pmd_priv((struct rte_eth_dev *)arg);
+
+ vnic_intr_return_all_credits(&enic->intr);
+
+ enic_log_q_error(enic);
+}
+
+int enic_enable(struct enic *enic)
+{
+ unsigned int index;
+ int err;
+ struct rte_eth_dev *eth_dev = enic->rte_dev;
+
+ eth_dev->data->dev_link.link_speed = vnic_dev_port_speed(enic->vdev);
+ eth_dev->data->dev_link.link_duplex = ETH_LINK_FULL_DUPLEX;
+ vnic_dev_notify_set(enic->vdev, -1); /* No Intr for notify */
+
+ if (enic_clsf_init(enic))
+ dev_warning(enic, "Init of hash table for clsf failed."\
+ "Flow director feature will not work\n");
+
+ for (index = 0; index < enic->rq_count; index++) {
+ err = enic_alloc_rx_queue_mbufs(enic, &enic->rq[index]);
+ if (err) {
+ dev_err(enic, "Failed to alloc RX queue mbufs\n");
+ return err;
+ }
+ }
+
+ for (index = 0; index < enic->wq_count; index++)
+ vnic_wq_enable(&enic->wq[index]);
+ for (index = 0; index < enic->rq_count; index++)
+ vnic_rq_enable(&enic->rq[index]);
+
+ vnic_dev_enable_wait(enic->vdev);
+
+ /* Register and enable error interrupt */
+ rte_intr_callback_register(&(enic->pdev->intr_handle),
+ enic_intr_handler, (void *)enic->rte_dev);
+
+ rte_intr_enable(&(enic->pdev->intr_handle));
+ vnic_intr_unmask(&enic->intr);
+
+ return 0;
+}
+
+int enic_alloc_intr_resources(struct enic *enic)
+{
+ int err;
+
+ dev_info(enic, "vNIC resources used: "\
+ "wq %d rq %d cq %d intr %d\n",
+ enic->wq_count, enic->rq_count,
+ enic->cq_count, enic->intr_count);
+
+ err = vnic_intr_alloc(enic->vdev, &enic->intr, 0);
+ if (err)
+ enic_free_vnic_resources(enic);
+
+ return err;
+}
+
+void enic_free_rq(void *rxq)
+{
+ struct vnic_rq *rq = (struct vnic_rq *)rxq;
+ struct enic *enic = vnic_dev_priv(rq->vdev);
+
+ enic_rxmbuf_queue_release(enic, rq);
+ rte_free(rq->mbuf_ring);
+ rq->mbuf_ring = NULL;
+ vnic_rq_free(rq);
+ vnic_cq_free(&enic->cq[rq->index]);
+}
+
+void enic_start_wq(struct enic *enic, uint16_t queue_idx)
+{
+ vnic_wq_enable(&enic->wq[queue_idx]);
+}
+
+int enic_stop_wq(struct enic *enic, uint16_t queue_idx)
+{
+ return vnic_wq_disable(&enic->wq[queue_idx]);
+}
+
+void enic_start_rq(struct enic *enic, uint16_t queue_idx)
+{
+ vnic_rq_enable(&enic->rq[queue_idx]);
+}
+
+int enic_stop_rq(struct enic *enic, uint16_t queue_idx)
+{
+ return vnic_rq_disable(&enic->rq[queue_idx]);
+}
+
+int enic_alloc_rq(struct enic *enic, uint16_t queue_idx,
+ unsigned int socket_id, struct rte_mempool *mp,
+ uint16_t nb_desc)
+{
+ int rc;
+ struct vnic_rq *rq = &enic->rq[queue_idx];
+
+ rq->socket_id = socket_id;
+ rq->mp = mp;
+
+ if (nb_desc) {
+ if (nb_desc > enic->config.rq_desc_count) {
+ dev_warning(enic,
+ "RQ %d - number of rx desc in cmd line (%d)"\
+ "is greater than that in the UCSM/CIMC adapter"\
+ "policy. Applying the value in the adapter "\
+ "policy (%d).\n",
+ queue_idx, nb_desc, enic->config.rq_desc_count);
+ nb_desc = enic->config.rq_desc_count;
+ }
+ dev_info(enic, "RX Queues - effective number of descs:%d\n",
+ nb_desc);
+ }
+
+ /* Allocate queue resources */
+ rc = vnic_rq_alloc(enic->vdev, rq, queue_idx,
+ nb_desc, sizeof(struct rq_enet_desc));
+ if (rc) {
+ dev_err(enic, "error in allocation of rq\n");
+ goto err_exit;
+ }
+
+ rc = vnic_cq_alloc(enic->vdev, &enic->cq[queue_idx], queue_idx,
+ socket_id, nb_desc,
+ sizeof(struct cq_enet_rq_desc));
+ if (rc) {
+ dev_err(enic, "error in allocation of cq for rq\n");
+ goto err_free_rq_exit;
+ }
+
+ /* Allocate the mbuf ring */
+ rq->mbuf_ring = (struct rte_mbuf **)rte_zmalloc_socket("rq->mbuf_ring",
+ sizeof(struct rte_mbuf *) * nb_desc,
+ RTE_CACHE_LINE_SIZE, rq->socket_id);
+
+ if (rq->mbuf_ring != NULL)
+ return 0;
+
+ /* cleanup on error */
+ vnic_cq_free(&enic->cq[queue_idx]);
+err_free_rq_exit:
+ vnic_rq_free(rq);
+err_exit:
+ return -ENOMEM;
+}
+
+void enic_free_wq(void *txq)
+{
+ struct vnic_wq *wq = (struct vnic_wq *)txq;
+ struct enic *enic = vnic_dev_priv(wq->vdev);
+
+ vnic_wq_free(wq);
+ vnic_cq_free(&enic->cq[enic->rq_count + wq->index]);
+}
+
+int enic_alloc_wq(struct enic *enic, uint16_t queue_idx,
+ unsigned int socket_id, uint16_t nb_desc)
+{
+ int err;
+ struct vnic_wq *wq = &enic->wq[queue_idx];
+ unsigned int cq_index = enic_cq_wq(enic, queue_idx);
+
+ wq->socket_id = socket_id;
+ if (nb_desc) {
+ if (nb_desc > enic->config.wq_desc_count) {
+ dev_warning(enic,
+ "WQ %d - number of tx desc in cmd line (%d)"\
+ "is greater than that in the UCSM/CIMC adapter"\
+ "policy. Applying the value in the adapter "\
+ "policy (%d)\n",
+ queue_idx, nb_desc, enic->config.wq_desc_count);
+ } else if (nb_desc != enic->config.wq_desc_count) {
+ enic->config.wq_desc_count = nb_desc;
+ dev_info(enic,
+ "TX Queues - effective number of descs:%d\n",
+ nb_desc);
+ }
+ }
+
+ /* Allocate queue resources */
+ err = vnic_wq_alloc(enic->vdev, &enic->wq[queue_idx], queue_idx,
+ enic->config.wq_desc_count,
+ sizeof(struct wq_enet_desc));
+ if (err) {
+ dev_err(enic, "error in allocation of wq\n");
+ return err;
+ }
+
+ err = vnic_cq_alloc(enic->vdev, &enic->cq[cq_index], cq_index,
+ socket_id, enic->config.wq_desc_count,
+ sizeof(struct cq_enet_wq_desc));
+ if (err) {
+ vnic_wq_free(wq);
+ dev_err(enic, "error in allocation of cq for wq\n");
+ }
+
+ return err;
+}
+
+int enic_disable(struct enic *enic)
+{
+ unsigned int i;
+ int err;
+
+ vnic_intr_mask(&enic->intr);
+ (void)vnic_intr_masked(&enic->intr); /* flush write */
+
+ vnic_dev_disable(enic->vdev);
+
+ enic_clsf_destroy(enic);
+
+ if (!enic_is_sriov_vf(enic))
+ vnic_dev_del_addr(enic->vdev, enic->mac_addr);
+
+ for (i = 0; i < enic->wq_count; i++) {
+ err = vnic_wq_disable(&enic->wq[i]);
+ if (err)
+ return err;
+ }
+ for (i = 0; i < enic->rq_count; i++) {
+ err = vnic_rq_disable(&enic->rq[i]);
+ if (err)
+ return err;
+ }
+
+ vnic_dev_set_reset_flag(enic->vdev, 1);
+ vnic_dev_notify_unset(enic->vdev);
+
+ for (i = 0; i < enic->wq_count; i++)
+ vnic_wq_clean(&enic->wq[i], enic_free_wq_buf);
+
+ for (i = 0; i < enic->rq_count; i++)
+ vnic_rq_clean(&enic->rq[i], enic_free_rq_buf);
+ for (i = 0; i < enic->cq_count; i++)
+ vnic_cq_clean(&enic->cq[i]);
+ vnic_intr_clean(&enic->intr);
+
+ return 0;
+}
+
+static int enic_dev_wait(struct vnic_dev *vdev,
+ int (*start)(struct vnic_dev *, int),
+ int (*finished)(struct vnic_dev *, int *),
+ int arg)
+{
+ int done;
+ int err;
+ int i;
+
+ err = start(vdev, arg);
+ if (err)
+ return err;
+
+ /* Wait for func to complete...2 seconds max */
+ for (i = 0; i < 2000; i++) {
+ err = finished(vdev, &done);
+ if (err)
+ return err;
+ if (done)
+ return 0;
+ usleep(1000);
+ }
+ return -ETIMEDOUT;
+}
+
+static int enic_dev_open(struct enic *enic)
+{
+ int err;
+
+ err = enic_dev_wait(enic->vdev, vnic_dev_open,
+ vnic_dev_open_done, 0);
+ if (err)
+ dev_err(enic_get_dev(enic),
+ "vNIC device open failed, err %d\n", err);
+
+ return err;
+}
+
+static int enic_set_rsskey(struct enic *enic)
+{
+ dma_addr_t rss_key_buf_pa;
+ union vnic_rss_key *rss_key_buf_va = NULL;
+ static union vnic_rss_key rss_key = {
+ .key = {
+ [0] = {.b = {85, 67, 83, 97, 119, 101, 115, 111, 109, 101}},
+ [1] = {.b = {80, 65, 76, 79, 117, 110, 105, 113, 117, 101}},
+ [2] = {.b = {76, 73, 78, 85, 88, 114, 111, 99, 107, 115}},
+ [3] = {.b = {69, 78, 73, 67, 105, 115, 99, 111, 111, 108}},
+ }
+ };
+ int err;
+ u8 name[NAME_MAX];
+
+ snprintf((char *)name, NAME_MAX, "rss_key-%s", enic->bdf_name);
+ rss_key_buf_va = enic_alloc_consistent(enic, sizeof(union vnic_rss_key),
+ &rss_key_buf_pa, name);
+ if (!rss_key_buf_va)
+ return -ENOMEM;
+
+ rte_memcpy(rss_key_buf_va, &rss_key, sizeof(union vnic_rss_key));
+
+ err = enic_set_rss_key(enic,
+ rss_key_buf_pa,
+ sizeof(union vnic_rss_key));
+
+ enic_free_consistent(enic->pdev, sizeof(union vnic_rss_key),
+ rss_key_buf_va, rss_key_buf_pa);
+
+ return err;
+}
+
+static int enic_set_rsscpu(struct enic *enic, u8 rss_hash_bits)
+{
+ dma_addr_t rss_cpu_buf_pa;
+ union vnic_rss_cpu *rss_cpu_buf_va = NULL;
+ int i;
+ int err;
+ u8 name[NAME_MAX];
+
+ snprintf((char *)name, NAME_MAX, "rss_cpu-%s", enic->bdf_name);
+ rss_cpu_buf_va = enic_alloc_consistent(enic, sizeof(union vnic_rss_cpu),
+ &rss_cpu_buf_pa, name);
+ if (!rss_cpu_buf_va)
+ return -ENOMEM;
+
+ for (i = 0; i < (1 << rss_hash_bits); i++)
+ (*rss_cpu_buf_va).cpu[i/4].b[i%4] = i % enic->rq_count;
+
+ err = enic_set_rss_cpu(enic,
+ rss_cpu_buf_pa,
+ sizeof(union vnic_rss_cpu));
+
+ enic_free_consistent(enic->pdev, sizeof(union vnic_rss_cpu),
+ rss_cpu_buf_va, rss_cpu_buf_pa);
+
+ return err;
+}
+
+static int enic_set_niccfg(struct enic *enic, u8 rss_default_cpu,
+ u8 rss_hash_type, u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable)
+{
+ const u8 tso_ipid_split_en = 0;
+ int err;
+
+ /* Enable VLAN tag stripping */
+
+ err = enic_set_nic_cfg(enic,
+ rss_default_cpu, rss_hash_type,
+ rss_hash_bits, rss_base_cpu,
+ rss_enable, tso_ipid_split_en,
+ enic->ig_vlan_strip_en);
+
+ return err;
+}
+
+int enic_set_rss_nic_cfg(struct enic *enic)
+{
+ const u8 rss_default_cpu = 0;
+ const u8 rss_hash_type = NIC_CFG_RSS_HASH_TYPE_IPV4 |
+ NIC_CFG_RSS_HASH_TYPE_TCP_IPV4 |
+ NIC_CFG_RSS_HASH_TYPE_IPV6 |
+ NIC_CFG_RSS_HASH_TYPE_TCP_IPV6;
+ const u8 rss_hash_bits = 7;
+ const u8 rss_base_cpu = 0;
+ u8 rss_enable = ENIC_SETTING(enic, RSS) && (enic->rq_count > 1);
+
+ if (rss_enable) {
+ if (!enic_set_rsskey(enic)) {
+ if (enic_set_rsscpu(enic, rss_hash_bits)) {
+ rss_enable = 0;
+ dev_warning(enic, "RSS disabled, "\
+ "Failed to set RSS cpu indirection table.");
+ }
+ } else {
+ rss_enable = 0;
+ dev_warning(enic,
+ "RSS disabled, Failed to set RSS key.\n");
+ }
+ }
+
+ return enic_set_niccfg(enic, rss_default_cpu, rss_hash_type,
+ rss_hash_bits, rss_base_cpu, rss_enable);
+}
+
+int enic_setup_finish(struct enic *enic)
+{
+ int ret;
+
+ ret = enic_set_rss_nic_cfg(enic);
+ if (ret) {
+ dev_err(enic, "Failed to config nic, aborting.\n");
+ return -1;
+ }
+
+ vnic_dev_add_addr(enic->vdev, enic->mac_addr);
+
+ /* Default conf */
+ vnic_dev_packet_filter(enic->vdev,
+ 1 /* directed */,
+ 1 /* multicast */,
+ 1 /* broadcast */,
+ 0 /* promisc */,
+ 1 /* allmulti */);
+
+ enic->promisc = 0;
+ enic->allmulti = 1;
+
+ return 0;
+}
+
+void enic_add_packet_filter(struct enic *enic)
+{
+ /* Args -> directed, multicast, broadcast, promisc, allmulti */
+ vnic_dev_packet_filter(enic->vdev, 1, 1, 1,
+ enic->promisc, enic->allmulti);
+}
+
+int enic_get_link_status(struct enic *enic)
+{
+ return vnic_dev_link_status(enic->vdev);
+}
+
+static void enic_dev_deinit(struct enic *enic)
+{
+ struct rte_eth_dev *eth_dev = enic->rte_dev;
+
+ rte_free(eth_dev->data->mac_addrs);
+}
+
+
+int enic_set_vnic_res(struct enic *enic)
+{
+ struct rte_eth_dev *eth_dev = enic->rte_dev;
+
+ if ((enic->rq_count < eth_dev->data->nb_rx_queues) ||
+ (enic->wq_count < eth_dev->data->nb_tx_queues)) {
+ dev_err(dev, "Not enough resources configured, aborting\n");
+ return -1;
+ }
+
+ enic->rq_count = eth_dev->data->nb_rx_queues;
+ enic->wq_count = eth_dev->data->nb_tx_queues;
+ if (enic->cq_count < (enic->rq_count + enic->wq_count)) {
+ dev_err(dev, "Not enough resources configured, aborting\n");
+ return -1;
+ }
+
+ enic->cq_count = enic->rq_count + enic->wq_count;
+ return 0;
+}
+
+static int enic_dev_init(struct enic *enic)
+{
+ int err;
+ struct rte_eth_dev *eth_dev = enic->rte_dev;
+
+ vnic_dev_intr_coal_timer_info_default(enic->vdev);
+
+ /* Get vNIC configuration
+ */
+ err = enic_get_vnic_config(enic);
+ if (err) {
+ dev_err(dev, "Get vNIC configuration failed, aborting\n");
+ return err;
+ }
+
+ eth_dev->data->mac_addrs = rte_zmalloc("enic_mac_addr", ETH_ALEN, 0);
+ if (!eth_dev->data->mac_addrs) {
+ dev_err(enic, "mac addr storage alloc failed, aborting.\n");
+ return -1;
+ }
+ ether_addr_copy((struct ether_addr *) enic->mac_addr,
+ ð_dev->data->mac_addrs[0]);
+
+
+ /* Get available resource counts
+ */
+ enic_get_res_counts(enic);
+
+ vnic_dev_set_reset_flag(enic->vdev, 0);
+
+ return 0;
+
+}
+
+int enic_probe(struct enic *enic)
+{
+ struct rte_pci_device *pdev = enic->pdev;
+ int err = -1;
+
+ dev_debug(enic, " Initializing ENIC PMD version %s\n", DRV_VERSION);
+
+ enic->bar0.vaddr = (void *)pdev->mem_resource[0].addr;
+ enic->bar0.len = pdev->mem_resource[0].len;
+
+ /* Register vNIC device */
+ enic->vdev = vnic_dev_register(NULL, enic, enic->pdev, &enic->bar0, 1);
+ if (!enic->vdev) {
+ dev_err(enic, "vNIC registration failed, aborting\n");
+ goto err_out;
+ }
+
+ vnic_register_cbacks(enic->vdev,
+ enic_alloc_consistent,
+ enic_free_consistent);
+
+ /* Issue device open to get device in known state */
+ err = enic_dev_open(enic);
+ if (err) {
+ dev_err(enic, "vNIC dev open failed, aborting\n");
+ goto err_out_unregister;
+ }
+
+ /* Set ingress vlan rewrite mode before vnic initialization */
+ err = vnic_dev_set_ig_vlan_rewrite_mode(enic->vdev,
+ IG_VLAN_REWRITE_MODE_PASS_THRU);
+ if (err) {
+ dev_err(enic,
+ "Failed to set ingress vlan rewrite mode, aborting.\n");
+ goto err_out_dev_close;
+ }
+
+ /* Issue device init to initialize the vnic-to-switch link.
+ * We'll start with carrier off and wait for link UP
+ * notification later to turn on carrier. We don't need
+ * to wait here for the vnic-to-switch link initialization
+ * to complete; link UP notification is the indication that
+ * the process is complete.
+ */
+
+ err = vnic_dev_init(enic->vdev, 0);
+ if (err) {
+ dev_err(enic, "vNIC dev init failed, aborting\n");
+ goto err_out_dev_close;
+ }
+
+ err = enic_dev_init(enic);
+ if (err) {
+ dev_err(enic, "Device initialization failed, aborting\n");
+ goto err_out_dev_close;
+ }
+
+ return 0;
+
+err_out_dev_close:
+ vnic_dev_close(enic->vdev);
+err_out_unregister:
+ vnic_dev_unregister(enic->vdev);
+err_out:
+ return err;
+}
+
+void enic_remove(struct enic *enic)
+{
+ enic_dev_deinit(enic);
+ vnic_dev_close(enic->vdev);
+ vnic_dev_unregister(enic->vdev);
+}
Code Review / deb_dpdk.git / blobdiff