struct vnic_rq *data_rq;
for (index = 0; index < enic->rq_count; index++) {
- cq_idx = enic_cq_rq(enic, enic_sop_rq(index));
+ cq_idx = enic_cq_rq(enic, enic_rte_rq_idx_to_sop_idx(index));
- vnic_rq_init(&enic->rq[enic_sop_rq(index)],
+ vnic_rq_init(&enic->rq[enic_rte_rq_idx_to_sop_idx(index)],
cq_idx,
error_interrupt_enable,
error_interrupt_offset);
- data_rq = &enic->rq[enic_data_rq(index)];
+ data_rq = &enic->rq[enic_rte_rq_idx_to_data_idx(index)];
if (data_rq->in_use)
vnic_rq_init(data_rq,
cq_idx,
rte_free(mze);
}
+int enic_link_update(struct enic *enic)
+{
+ struct rte_eth_dev *eth_dev = enic->rte_dev;
+ int ret;
+ int link_status = 0;
+
+ link_status = enic_get_link_status(enic);
+ ret = (link_status == enic->link_status);
+ enic->link_status = link_status;
+ eth_dev->data->dev_link.link_status = link_status;
+ eth_dev->data->dev_link.link_duplex = ETH_LINK_FULL_DUPLEX;
+ eth_dev->data->dev_link.link_speed = vnic_dev_port_speed(enic->vdev);
+ return ret;
+}
+
static void
enic_intr_handler(__rte_unused struct rte_intr_handle *handle,
void *arg)
{
- struct enic *enic = pmd_priv((struct rte_eth_dev *)arg);
+ struct rte_eth_dev *dev = (struct rte_eth_dev *)arg;
+ struct enic *enic = pmd_priv(dev);
vnic_intr_return_all_credits(&enic->intr);
+ enic_link_update(enic);
+ _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_INTR_LSC, NULL);
enic_log_q_error(enic);
}
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 */
+
+ /* vnic notification of link status has already been turned on in
+ * enic_dev_init() which is called during probe time. Here we are
+ * just turning on interrupt vector 0 if needed.
+ */
+ if (eth_dev->data->dev_conf.intr_conf.lsc)
+ vnic_dev_notify_set(enic->vdev, 0);
if (enic_clsf_init(enic))
dev_warning(enic, "Init of hash table for clsf failed."\
for (index = 0; index < enic->rq_count; index++) {
err = enic_alloc_rx_queue_mbufs(enic,
- &enic->rq[enic_sop_rq(index)]);
+ &enic->rq[enic_rte_rq_idx_to_sop_idx(index)]);
if (err) {
dev_err(enic, "Failed to alloc sop RX queue mbufs\n");
return err;
}
err = enic_alloc_rx_queue_mbufs(enic,
- &enic->rq[enic_data_rq(index)]);
+ &enic->rq[enic_rte_rq_idx_to_data_idx(index)]);
if (err) {
/* release the allocated mbufs for the sop rq*/
enic_rxmbuf_queue_release(enic,
- &enic->rq[enic_sop_rq(index)]);
+ &enic->rq[enic_rte_rq_idx_to_sop_idx(index)]);
dev_err(enic, "Failed to alloc data RX queue mbufs\n");
return err;
vnic_rq_free(rq_data);
vnic_cq_free(&enic->cq[enic_sop_rq_idx_to_cq_idx(rq_sop->index)]);
+
+ rq_sop->in_use = 0;
+ rq_data->in_use = 0;
}
void enic_start_wq(struct enic *enic, uint16_t queue_idx)
void enic_start_rq(struct enic *enic, uint16_t queue_idx)
{
- struct vnic_rq *rq_sop = &enic->rq[enic_sop_rq(queue_idx)];
- struct vnic_rq *rq_data = &enic->rq[rq_sop->data_queue_idx];
+ struct vnic_rq *rq_sop;
+ struct vnic_rq *rq_data;
+ rq_sop = &enic->rq[enic_rte_rq_idx_to_sop_idx(queue_idx)];
+ rq_data = &enic->rq[rq_sop->data_queue_idx];
struct rte_eth_dev *eth_dev = enic->rte_dev;
if (rq_data->in_use)
{
int ret1 = 0, ret2 = 0;
struct rte_eth_dev *eth_dev = enic->rte_dev;
- struct vnic_rq *rq_sop = &enic->rq[enic_sop_rq(queue_idx)];
- struct vnic_rq *rq_data = &enic->rq[rq_sop->data_queue_idx];
+ struct vnic_rq *rq_sop;
+ struct vnic_rq *rq_data;
+ rq_sop = &enic->rq[enic_rte_rq_idx_to_sop_idx(queue_idx)];
+ rq_data = &enic->rq[rq_sop->data_queue_idx];
ret2 = vnic_rq_disable(rq_sop);
rte_mb();
uint16_t nb_desc, uint16_t free_thresh)
{
int rc;
- uint16_t sop_queue_idx = enic_sop_rq(queue_idx);
- uint16_t data_queue_idx = enic_data_rq(queue_idx);
+ uint16_t sop_queue_idx = enic_rte_rq_idx_to_sop_idx(queue_idx);
+ uint16_t data_queue_idx = enic_rte_rq_idx_to_data_idx(queue_idx);
struct vnic_rq *rq_sop = &enic->rq[sop_queue_idx];
struct vnic_rq *rq_data = &enic->rq[data_queue_idx];
unsigned int mbuf_size, mbufs_per_pkt;
unsigned int nb_sop_desc, nb_data_desc;
uint16_t min_sop, max_sop, min_data, max_data;
+ uint16_t mtu = enic->rte_dev->data->mtu;
rq_sop->is_sop = 1;
rq_sop->data_queue_idx = data_queue_idx;
RTE_PKTMBUF_HEADROOM);
if (enic->rte_dev->data->dev_conf.rxmode.enable_scatter) {
- dev_info(enic, "Scatter rx mode enabled\n");
+ dev_info(enic, "Rq %u Scatter rx mode enabled\n", queue_idx);
/* ceil((mtu + ETHER_HDR_LEN + 4)/mbuf_size) */
- mbufs_per_pkt = ((enic->config.mtu + ETHER_HDR_LEN + 4) +
+ mbufs_per_pkt = ((mtu + ETHER_HDR_LEN + 4) +
(mbuf_size - 1)) / mbuf_size;
} else {
dev_info(enic, "Scatter rx mode disabled\n");
}
if (mbufs_per_pkt > 1) {
dev_info(enic, "For mtu %d and mbuf size %d valid rx descriptor range is %d to %d\n",
- enic->config.mtu, mbuf_size, min_sop + min_data,
+ mtu, mbuf_size, min_sop + min_data,
max_sop + max_data);
}
dev_info(enic, "Using %d rx descriptors (sop %d, data %d)\n",
goto err_free_sop_mbuf;
}
+ rq_sop->tot_nb_desc = nb_desc; /* squirl away for MTU update function */
+
return 0;
err_free_sop_mbuf:
vnic_intr_mask(&enic->intr);
(void)vnic_intr_masked(&enic->intr); /* flush write */
+ rte_intr_disable(&enic->pdev->intr_handle);
+ rte_intr_callback_unregister(&enic->pdev->intr_handle,
+ enic_intr_handler,
+ (void *)enic->rte_dev);
vnic_dev_disable(enic->vdev);
}
}
+ /* If we were using interrupts, set the interrupt vector to -1
+ * to disable interrupts. We are not disabling link notifcations,
+ * though, as we want the polling of link status to continue working.
+ */
+ if (enic->rte_dev->data->dev_conf.intr_conf.lsc)
+ vnic_dev_notify_set(enic->vdev, -1);
+
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 < (1 << rss_hash_bits); i++)
(*rss_cpu_buf_va).cpu[i / 4].b[i % 4] =
- enic_sop_rq(i % enic->rq_count);
+ enic_rte_rq_idx_to_sop_idx(i % enic->rq_count);
err = enic_set_rss_cpu(enic,
rss_cpu_buf_pa,
{
struct rte_eth_dev *eth_dev = enic->rte_dev;
+ /* stop link status checking */
+ vnic_dev_notify_unset(enic->vdev);
+
rte_free(eth_dev->data->mac_addrs);
}
return rc;
}
+/* Initialize the completion queue for an RQ */
+static int
+enic_reinit_rq(struct enic *enic, unsigned int rq_idx)
+{
+ struct vnic_rq *sop_rq, *data_rq;
+ unsigned int cq_idx = enic_cq_rq(enic, rq_idx);
+ int rc = 0;
+
+ sop_rq = &enic->rq[enic_rte_rq_idx_to_sop_idx(rq_idx)];
+ data_rq = &enic->rq[enic_rte_rq_idx_to_data_idx(rq_idx)];
+
+ vnic_cq_clean(&enic->cq[cq_idx]);
+ vnic_cq_init(&enic->cq[cq_idx],
+ 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_rq_init_start(sop_rq, enic_cq_rq(enic,
+ enic_rte_rq_idx_to_sop_idx(rq_idx)), 0,
+ sop_rq->ring.desc_count - 1, 1, 0);
+ if (data_rq->in_use) {
+ vnic_rq_init_start(data_rq,
+ enic_cq_rq(enic,
+ enic_rte_rq_idx_to_data_idx(rq_idx)), 0,
+ data_rq->ring.desc_count - 1, 1, 0);
+ }
+
+ rc = enic_alloc_rx_queue_mbufs(enic, sop_rq);
+ if (rc)
+ return rc;
+
+ if (data_rq->in_use) {
+ rc = enic_alloc_rx_queue_mbufs(enic, data_rq);
+ if (rc) {
+ enic_rxmbuf_queue_release(enic, sop_rq);
+ return rc;
+ }
+ }
+
+ return 0;
+}
+
/* The Cisco NIC can send and receive packets up to a max packet size
* determined by the NIC type and firmware. There is also an MTU
* configured into the NIC via the CIMC/UCSM management interface
*/
int enic_set_mtu(struct enic *enic, uint16_t new_mtu)
{
+ unsigned int rq_idx;
+ struct vnic_rq *rq;
+ int rc = 0;
uint16_t old_mtu; /* previous setting */
uint16_t config_mtu; /* Value configured into NIC via CIMC/UCSM */
struct rte_eth_dev *eth_dev = enic->rte_dev;
old_mtu = eth_dev->data->mtu;
config_mtu = enic->config.mtu;
- /* only works with Rx scatter disabled */
- if (enic->rte_dev->data->dev_conf.rxmode.enable_scatter)
- return -ENOTSUP;
-
if (new_mtu > enic->max_mtu) {
dev_err(enic,
"MTU not updated: requested (%u) greater than max (%u)\n",
"MTU (%u) is greater than value configured in NIC (%u)\n",
new_mtu, config_mtu);
+ /* The easy case is when scatter is disabled. However if the MTU
+ * becomes greater than the mbuf data size, packet drops will ensue.
+ */
+ if (!enic->rte_dev->data->dev_conf.rxmode.enable_scatter) {
+ eth_dev->data->mtu = new_mtu;
+ goto set_mtu_done;
+ }
+
+ /* Rx scatter is enabled so reconfigure RQ's on the fly. The point is to
+ * change Rx scatter mode if necessary for better performance. I.e. if
+ * MTU was greater than the mbuf size and now it's less, scatter Rx
+ * doesn't have to be used and vice versa.
+ */
+ rte_spinlock_lock(&enic->mtu_lock);
+
+ /* Stop traffic on all RQs */
+ for (rq_idx = 0; rq_idx < enic->rq_count * 2; rq_idx++) {
+ rq = &enic->rq[rq_idx];
+ if (rq->is_sop && rq->in_use) {
+ rc = enic_stop_rq(enic,
+ enic_sop_rq_idx_to_rte_idx(rq_idx));
+ if (rc) {
+ dev_err(enic, "Failed to stop Rq %u\n", rq_idx);
+ goto set_mtu_done;
+ }
+ }
+ }
+
+ /* replace Rx funciton with a no-op to avoid getting stale pkts */
+ eth_dev->rx_pkt_burst = enic_dummy_recv_pkts;
+ rte_mb();
+
+ /* Allow time for threads to exit the real Rx function. */
+ usleep(100000);
+
+ /* now it is safe to reconfigure the RQs */
+
/* update the mtu */
eth_dev->data->mtu = new_mtu;
+ /* free and reallocate RQs with the new MTU */
+ for (rq_idx = 0; rq_idx < enic->rq_count; rq_idx++) {
+ rq = &enic->rq[enic_rte_rq_idx_to_sop_idx(rq_idx)];
+
+ enic_free_rq(rq);
+ rc = enic_alloc_rq(enic, rq_idx, rq->socket_id, rq->mp,
+ rq->tot_nb_desc, rq->rx_free_thresh);
+ if (rc) {
+ dev_err(enic,
+ "Fatal MTU alloc error- No traffic will pass\n");
+ goto set_mtu_done;
+ }
+
+ rc = enic_reinit_rq(enic, rq_idx);
+ if (rc) {
+ dev_err(enic,
+ "Fatal MTU RQ reinit- No traffic will pass\n");
+ goto set_mtu_done;
+ }
+ }
+
+ /* put back the real receive function */
+ rte_mb();
+ eth_dev->rx_pkt_burst = enic_recv_pkts;
+ rte_mb();
+
+ /* restart Rx traffic */
+ for (rq_idx = 0; rq_idx < enic->rq_count; rq_idx++) {
+ rq = &enic->rq[enic_rte_rq_idx_to_sop_idx(rq_idx)];
+ if (rq->is_sop && rq->in_use)
+ enic_start_rq(enic, rq_idx);
+ }
+
+set_mtu_done:
dev_info(enic, "MTU changed from %u to %u\n", old_mtu, new_mtu);
- return 0;
+ rte_spinlock_unlock(&enic->mtu_lock);
+ return rc;
}
static int enic_dev_init(struct enic *enic)
return -EINVAL;
}
+ /* Get the supported filters */
+ enic_fdir_info(enic);
+
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");
vnic_dev_set_reset_flag(enic->vdev, 0);
+ /* set up link status checking */
+ vnic_dev_notify_set(enic->vdev, -1); /* No Intr for notify */
+
return 0;
}
Code Review / deb_dpdk.git / blobdiff