baseband/acc100: support interrupt
Adding capability and functions to support MSI interrupts, call backs and inforing. Signed-off-by: Nicolas Chautru <nicolas.chautru@intel.com> Acked-by: Liu Tianjiao <tianjiao.liu@intel.com> Acked-by: Maxime Coquelin <maxime.coquelin@redhat.com>
This commit is contained in:
Nicolas Chautru
Akhil Goyal
parent
f404dfe35c
commit
0653146415
@ -342,6 +342,213 @@ alloc_sw_rings_min_mem(struct rte_bbdev *dev, struct acc100_device *d,
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free_base_addresses(base_addrs, i);
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}
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/*
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* Find queue_id of a device queue based on details from the Info Ring.
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* If a queue isn't found UINT16_MAX is returned.
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*/
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static inline uint16_t
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get_queue_id_from_ring_info(struct rte_bbdev_data *data,
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const union acc100_info_ring_data ring_data)
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{
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uint16_t queue_id;
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for (queue_id = 0; queue_id < data->num_queues; ++queue_id) {
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struct acc100_queue *acc100_q =
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data->queues[queue_id].queue_private;
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if (acc100_q != NULL && acc100_q->aq_id == ring_data.aq_id &&
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acc100_q->qgrp_id == ring_data.qg_id &&
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acc100_q->vf_id == ring_data.vf_id)
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return queue_id;
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}
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return UINT16_MAX;
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}
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/* Checks PF Info Ring to find the interrupt cause and handles it accordingly */
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static inline void
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acc100_check_ir(struct acc100_device *acc100_dev)
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{
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volatile union acc100_info_ring_data *ring_data;
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uint16_t info_ring_head = acc100_dev->info_ring_head;
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if (acc100_dev->info_ring == NULL)
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return;
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ring_data = acc100_dev->info_ring + (acc100_dev->info_ring_head &
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ACC100_INFO_RING_MASK);
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while (ring_data->valid) {
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if ((ring_data->int_nb < ACC100_PF_INT_DMA_DL_DESC_IRQ) || (
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ring_data->int_nb >
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ACC100_PF_INT_DMA_DL5G_DESC_IRQ))
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rte_bbdev_log(WARNING, "InfoRing: ITR:%d Info:0x%x",
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ring_data->int_nb, ring_data->detailed_info);
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/* Initialize Info Ring entry and move forward */
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ring_data->val = 0;
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info_ring_head++;
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ring_data = acc100_dev->info_ring +
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(info_ring_head & ACC100_INFO_RING_MASK);
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}
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}
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/* Checks PF Info Ring to find the interrupt cause and handles it accordingly */
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static inline void
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acc100_pf_interrupt_handler(struct rte_bbdev *dev)
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{
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struct acc100_device *acc100_dev = dev->data->dev_private;
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volatile union acc100_info_ring_data *ring_data;
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struct acc100_deq_intr_details deq_intr_det;
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ring_data = acc100_dev->info_ring + (acc100_dev->info_ring_head &
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ACC100_INFO_RING_MASK);
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while (ring_data->valid) {
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rte_bbdev_log_debug(
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"ACC100 PF Interrupt received, Info Ring data: 0x%x",
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ring_data->val);
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switch (ring_data->int_nb) {
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case ACC100_PF_INT_DMA_DL_DESC_IRQ:
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case ACC100_PF_INT_DMA_UL_DESC_IRQ:
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case ACC100_PF_INT_DMA_UL5G_DESC_IRQ:
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case ACC100_PF_INT_DMA_DL5G_DESC_IRQ:
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deq_intr_det.queue_id = get_queue_id_from_ring_info(
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dev->data, *ring_data);
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if (deq_intr_det.queue_id == UINT16_MAX) {
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rte_bbdev_log(ERR,
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"Couldn't find queue: aq_id: %u, qg_id: %u, vf_id: %u",
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ring_data->aq_id,
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ring_data->qg_id,
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ring_data->vf_id);
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return;
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}
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rte_bbdev_pmd_callback_process(dev,
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RTE_BBDEV_EVENT_DEQUEUE, &deq_intr_det);
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break;
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default:
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rte_bbdev_pmd_callback_process(dev,
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RTE_BBDEV_EVENT_ERROR, NULL);
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break;
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}
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/* Initialize Info Ring entry and move forward */
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ring_data->val = 0;
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++acc100_dev->info_ring_head;
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ring_data = acc100_dev->info_ring +
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(acc100_dev->info_ring_head &
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ACC100_INFO_RING_MASK);
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}
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}
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/* Checks VF Info Ring to find the interrupt cause and handles it accordingly */
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static inline void
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acc100_vf_interrupt_handler(struct rte_bbdev *dev)
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{
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struct acc100_device *acc100_dev = dev->data->dev_private;
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volatile union acc100_info_ring_data *ring_data;
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struct acc100_deq_intr_details deq_intr_det;
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ring_data = acc100_dev->info_ring + (acc100_dev->info_ring_head &
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ACC100_INFO_RING_MASK);
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while (ring_data->valid) {
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rte_bbdev_log_debug(
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"ACC100 VF Interrupt received, Info Ring data: 0x%x",
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ring_data->val);
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switch (ring_data->int_nb) {
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case ACC100_VF_INT_DMA_DL_DESC_IRQ:
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case ACC100_VF_INT_DMA_UL_DESC_IRQ:
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case ACC100_VF_INT_DMA_UL5G_DESC_IRQ:
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case ACC100_VF_INT_DMA_DL5G_DESC_IRQ:
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/* VFs are not aware of their vf_id - it's set to 0 in
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* queue structures.
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*/
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ring_data->vf_id = 0;
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deq_intr_det.queue_id = get_queue_id_from_ring_info(
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dev->data, *ring_data);
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if (deq_intr_det.queue_id == UINT16_MAX) {
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rte_bbdev_log(ERR,
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"Couldn't find queue: aq_id: %u, qg_id: %u",
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ring_data->aq_id,
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ring_data->qg_id);
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return;
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}
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rte_bbdev_pmd_callback_process(dev,
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RTE_BBDEV_EVENT_DEQUEUE, &deq_intr_det);
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break;
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default:
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rte_bbdev_pmd_callback_process(dev,
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RTE_BBDEV_EVENT_ERROR, NULL);
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break;
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}
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/* Initialize Info Ring entry and move forward */
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ring_data->valid = 0;
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++acc100_dev->info_ring_head;
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ring_data = acc100_dev->info_ring + (acc100_dev->info_ring_head
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& ACC100_INFO_RING_MASK);
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}
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}
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/* Interrupt handler triggered by ACC100 dev for handling specific interrupt */
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static void
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acc100_dev_interrupt_handler(void *cb_arg)
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{
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struct rte_bbdev *dev = cb_arg;
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struct acc100_device *acc100_dev = dev->data->dev_private;
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/* Read info ring */
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if (acc100_dev->pf_device)
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acc100_pf_interrupt_handler(dev);
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else
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acc100_vf_interrupt_handler(dev);
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}
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/* Allocate and setup inforing */
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static int
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allocate_info_ring(struct rte_bbdev *dev)
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{
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struct acc100_device *d = dev->data->dev_private;
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const struct acc100_registry_addr *reg_addr;
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rte_iova_t info_ring_iova;
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uint32_t phys_low, phys_high;
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if (d->info_ring != NULL)
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return 0; /* Already configured */
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/* Choose correct registry addresses for the device type */
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if (d->pf_device)
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reg_addr = &pf_reg_addr;
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else
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reg_addr = &vf_reg_addr;
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/* Allocate InfoRing */
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d->info_ring = rte_zmalloc_socket("Info Ring",
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ACC100_INFO_RING_NUM_ENTRIES *
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sizeof(*d->info_ring), RTE_CACHE_LINE_SIZE,
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dev->data->socket_id);
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if (d->info_ring == NULL) {
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rte_bbdev_log(ERR,
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"Failed to allocate Info Ring for %s:%u",
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dev->device->driver->name,
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dev->data->dev_id);
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return -ENOMEM;
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}
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info_ring_iova = rte_malloc_virt2iova(d->info_ring);
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/* Setup Info Ring */
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phys_high = (uint32_t)(info_ring_iova >> 32);
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phys_low = (uint32_t)(info_ring_iova);
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acc100_reg_write(d, reg_addr->info_ring_hi, phys_high);
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acc100_reg_write(d, reg_addr->info_ring_lo, phys_low);
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acc100_reg_write(d, reg_addr->info_ring_en, ACC100_REG_IRQ_EN_ALL);
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d->info_ring_head = (acc100_reg_read(d, reg_addr->info_ring_ptr) &
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0xFFF) / sizeof(union acc100_info_ring_data);
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return 0;
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}
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/* Allocate 64MB memory used for all software rings */
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static int
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acc100_setup_queues(struct rte_bbdev *dev, uint16_t num_queues, int socket_id)
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@ -349,6 +556,7 @@ acc100_setup_queues(struct rte_bbdev *dev, uint16_t num_queues, int socket_id)
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uint32_t phys_low, phys_high, payload;
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struct acc100_device *d = dev->data->dev_private;
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const struct acc100_registry_addr *reg_addr;
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int ret;
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if (d->pf_device && !d->acc100_conf.pf_mode_en) {
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rte_bbdev_log(NOTICE,
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@ -432,6 +640,14 @@ acc100_setup_queues(struct rte_bbdev *dev, uint16_t num_queues, int socket_id)
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acc100_reg_write(d, reg_addr->tail_ptrs_dl4g_hi, phys_high);
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acc100_reg_write(d, reg_addr->tail_ptrs_dl4g_lo, phys_low);
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ret = allocate_info_ring(dev);
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if (ret < 0) {
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rte_bbdev_log(ERR, "Failed to allocate info_ring for %s:%u",
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dev->device->driver->name,
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dev->data->dev_id);
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/* Continue */
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}
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d->harq_layout = rte_zmalloc_socket("HARQ Layout",
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ACC100_HARQ_LAYOUT * sizeof(*d->harq_layout),
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RTE_CACHE_LINE_SIZE, dev->data->socket_id);
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@ -453,13 +669,59 @@ acc100_setup_queues(struct rte_bbdev *dev, uint16_t num_queues, int socket_id)
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return 0;
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}
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static int
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acc100_intr_enable(struct rte_bbdev *dev)
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{
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int ret;
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struct acc100_device *d = dev->data->dev_private;
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/* Only MSI are currently supported */
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if (dev->intr_handle->type == RTE_INTR_HANDLE_VFIO_MSI ||
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dev->intr_handle->type == RTE_INTR_HANDLE_UIO) {
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ret = allocate_info_ring(dev);
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if (ret < 0) {
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rte_bbdev_log(ERR,
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"Couldn't allocate info ring for device: %s",
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dev->data->name);
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return ret;
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}
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ret = rte_intr_enable(dev->intr_handle);
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if (ret < 0) {
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rte_bbdev_log(ERR,
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"Couldn't enable interrupts for device: %s",
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dev->data->name);
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rte_free(d->info_ring);
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return ret;
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}
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ret = rte_intr_callback_register(dev->intr_handle,
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acc100_dev_interrupt_handler, dev);
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if (ret < 0) {
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rte_bbdev_log(ERR,
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"Couldn't register interrupt callback for device: %s",
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dev->data->name);
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rte_free(d->info_ring);
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return ret;
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}
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return 0;
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}
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rte_bbdev_log(ERR, "ACC100 (%s) supports only VFIO MSI interrupts",
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dev->data->name);
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return -ENOTSUP;
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}
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/* Free memory used for software rings */
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static int
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acc100_dev_close(struct rte_bbdev *dev)
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{
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struct acc100_device *d = dev->data->dev_private;
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acc100_check_ir(d);
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if (d->sw_rings_base != NULL) {
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rte_free(d->tail_ptrs);
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rte_free(d->info_ring);
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rte_free(d->sw_rings_base);
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d->sw_rings_base = NULL;
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}
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@ -670,6 +932,7 @@ acc100_dev_info_get(struct rte_bbdev *dev,
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RTE_BBDEV_TURBO_CRC_TYPE_24B |
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RTE_BBDEV_TURBO_HALF_ITERATION_EVEN |
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RTE_BBDEV_TURBO_EARLY_TERMINATION |
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RTE_BBDEV_TURBO_DEC_INTERRUPTS |
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RTE_BBDEV_TURBO_NEG_LLR_1_BIT_IN |
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RTE_BBDEV_TURBO_MAP_DEC |
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RTE_BBDEV_TURBO_DEC_TB_CRC_24B_KEEP |
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@ -690,6 +953,7 @@ acc100_dev_info_get(struct rte_bbdev *dev,
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RTE_BBDEV_TURBO_CRC_24B_ATTACH |
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RTE_BBDEV_TURBO_RV_INDEX_BYPASS |
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RTE_BBDEV_TURBO_RATE_MATCH |
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RTE_BBDEV_TURBO_ENC_INTERRUPTS |
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RTE_BBDEV_TURBO_ENC_SCATTER_GATHER,
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.num_buffers_src =
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RTE_BBDEV_TURBO_MAX_CODE_BLOCKS,
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@ -703,7 +967,8 @@ acc100_dev_info_get(struct rte_bbdev *dev,
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.capability_flags =
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RTE_BBDEV_LDPC_RATE_MATCH |
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RTE_BBDEV_LDPC_CRC_24B_ATTACH |
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RTE_BBDEV_LDPC_INTERLEAVER_BYPASS,
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RTE_BBDEV_LDPC_INTERLEAVER_BYPASS |
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RTE_BBDEV_LDPC_ENC_INTERRUPTS,
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.num_buffers_src =
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RTE_BBDEV_LDPC_MAX_CODE_BLOCKS,
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.num_buffers_dst =
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@ -728,7 +993,8 @@ acc100_dev_info_get(struct rte_bbdev *dev,
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RTE_BBDEV_LDPC_DECODE_BYPASS |
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RTE_BBDEV_LDPC_DEC_SCATTER_GATHER |
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RTE_BBDEV_LDPC_HARQ_6BIT_COMPRESSION |
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RTE_BBDEV_LDPC_LLR_COMPRESSION,
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RTE_BBDEV_LDPC_LLR_COMPRESSION |
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RTE_BBDEV_LDPC_DEC_INTERRUPTS,
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.llr_size = 8,
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.llr_decimals = 1,
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.num_buffers_src =
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@ -778,14 +1044,44 @@ acc100_dev_info_get(struct rte_bbdev *dev,
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#else
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dev_info->harq_buffer_size = 0;
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#endif
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acc100_check_ir(d);
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}
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static int
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acc100_queue_intr_enable(struct rte_bbdev *dev, uint16_t queue_id)
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{
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struct acc100_queue *q = dev->data->queues[queue_id].queue_private;
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if (dev->intr_handle->type != RTE_INTR_HANDLE_VFIO_MSI &&
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dev->intr_handle->type != RTE_INTR_HANDLE_UIO)
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return -ENOTSUP;
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q->irq_enable = 1;
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return 0;
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}
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static int
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acc100_queue_intr_disable(struct rte_bbdev *dev, uint16_t queue_id)
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{
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struct acc100_queue *q = dev->data->queues[queue_id].queue_private;
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if (dev->intr_handle->type != RTE_INTR_HANDLE_VFIO_MSI &&
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dev->intr_handle->type != RTE_INTR_HANDLE_UIO)
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return -ENOTSUP;
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q->irq_enable = 0;
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return 0;
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}
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static const struct rte_bbdev_ops acc100_bbdev_ops = {
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.setup_queues = acc100_setup_queues,
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.intr_enable = acc100_intr_enable,
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.close = acc100_dev_close,
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.info_get = acc100_dev_info_get,
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.queue_setup = acc100_queue_setup,
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.queue_release = acc100_queue_release,
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.queue_intr_enable = acc100_queue_intr_enable,
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.queue_intr_disable = acc100_queue_intr_disable
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};
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/* ACC100 PCI PF address map */
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@ -3018,8 +3314,10 @@ dequeue_dec_one_op_cb(struct rte_bbdev_queue_data *q_data,
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? (1 << RTE_BBDEV_DATA_ERROR) : 0);
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op->status |= ((rsp.dma_err) ? (1 << RTE_BBDEV_DRV_ERROR) : 0);
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op->status |= ((rsp.fcw_err) ? (1 << RTE_BBDEV_DRV_ERROR) : 0);
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if (op->status != 0)
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if (op->status != 0) {
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q_data->queue_stats.dequeue_err_count++;
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acc100_check_ir(q->d);
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}
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/* CRC invalid if error exists */
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if (!op->status)
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@ -3076,6 +3374,9 @@ dequeue_ldpc_dec_one_op_cb(struct rte_bbdev_queue_data *q_data,
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op->status |= 1 << RTE_BBDEV_SYNDROME_ERROR;
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op->ldpc_dec.iter_count = (uint8_t) rsp.iter_cnt;
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if (op->status & (1 << RTE_BBDEV_DRV_ERROR))
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acc100_check_ir(q->d);
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/* Check if this is the last desc in batch (Atomic Queue) */
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if (desc->req.last_desc_in_batch) {
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(*aq_dequeued)++;
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@ -565,8 +565,16 @@ struct acc100_device {
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rte_iova_t sw_rings_iova; /* IOVA address of sw_rings */
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/* Virtual address of the info memory routed to the this function under
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* operation, whether it is PF or VF.
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* HW may DMA information data at this location asynchronously
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*/
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union acc100_info_ring_data *info_ring;
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union acc100_harq_layout_data *harq_layout;
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/* Virtual Info Ring head */
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uint16_t info_ring_head;
|
||||
/* Number of bytes available for each queue in device, depending on
|
||||
* how many queues are enabled with configure()
|
||||
*/
|
||||
uint32_t sw_ring_size;
|
||||
uint32_t ddr_size; /* Size in kB */
|
||||
uint32_t *tail_ptrs; /* Base address of response tail pointer buffer */
|
||||
@ -582,4 +590,12 @@ struct acc100_device {
|
||||
bool configured; /**< True if this ACC100 device is configured */
|
||||
};
|
||||
|
||||
/**
|
||||
* Structure with details about RTE_BBDEV_EVENT_DEQUEUE event. It's passed to
|
||||
* the callback function.
|
||||
*/
|
||||
struct acc100_deq_intr_details {
|
||||
uint16_t queue_id;
|
||||
};
|
||||
|
||||
#endif /* _RTE_ACC100_PMD_H_ */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user