drivers: remove direct access to interrupt handle
[dpdk.git] / drivers / baseband / fpga_5gnr_fec / rte_fpga_5gnr_fec.c
index 63d11ad..15d23d6 100644 (file)
 #include "fpga_5gnr_fec.h"
 #include "rte_pmd_fpga_5gnr_fec.h"
 
-/* 5GNR SW PMD logging ID */
-static int fpga_5gnr_fec_logtype;
+#ifdef RTE_LIBRTE_BBDEV_DEBUG
+RTE_LOG_REGISTER_DEFAULT(fpga_5gnr_fec_logtype, DEBUG);
+#else
+RTE_LOG_REGISTER_DEFAULT(fpga_5gnr_fec_logtype, NOTICE);
+#endif
 
 #ifdef RTE_LIBRTE_BBDEV_DEBUG
 
@@ -325,6 +328,7 @@ fpga_dev_info_get(struct rte_bbdev *dev,
                                RTE_BBDEV_LDPC_INTERNAL_HARQ_MEMORY_IN_ENABLE |
                                RTE_BBDEV_LDPC_INTERNAL_HARQ_MEMORY_OUT_ENABLE |
                                RTE_BBDEV_LDPC_INTERNAL_HARQ_MEMORY_LOOPBACK |
+                               RTE_BBDEV_LDPC_DEC_INTERRUPTS |
                                RTE_BBDEV_LDPC_INTERNAL_HARQ_MEMORY_FILLERS,
                        .llr_size = 6,
                        .llr_decimals = 2,
@@ -368,6 +372,7 @@ fpga_dev_info_get(struct rte_bbdev *dev,
        dev_info->default_queue_conf = default_queue_conf;
        dev_info->capabilities = bbdev_capabilities;
        dev_info->cpu_flag_reqs = NULL;
+       dev_info->data_endianness = RTE_LITTLE_ENDIAN;
 
        /* Calculates number of queues assigned to device */
        dev_info->max_num_queues = 0;
@@ -636,14 +641,152 @@ fpga_queue_stop(struct rte_bbdev *dev, uint16_t queue_id)
        return 0;
 }
 
+static inline uint16_t
+get_queue_id(struct rte_bbdev_data *data, uint8_t q_idx)
+{
+       uint16_t queue_id;
+
+       for (queue_id = 0; queue_id < data->num_queues; ++queue_id) {
+               struct fpga_queue *q = data->queues[queue_id].queue_private;
+               if (q != NULL && q->q_idx == q_idx)
+                       return queue_id;
+       }
+
+       return -1;
+}
+
+/* Interrupt handler triggered by FPGA dev for handling specific interrupt */
+static void
+fpga_dev_interrupt_handler(void *cb_arg)
+{
+       struct rte_bbdev *dev = cb_arg;
+       struct fpga_5gnr_fec_device *fpga_dev = dev->data->dev_private;
+       struct fpga_queue *q;
+       uint64_t ring_head;
+       uint64_t q_idx;
+       uint16_t queue_id;
+       uint8_t i;
+
+       /* Scan queue assigned to this device */
+       for (i = 0; i < FPGA_TOTAL_NUM_QUEUES; ++i) {
+               q_idx = 1ULL << i;
+               if (fpga_dev->q_bound_bit_map & q_idx) {
+                       queue_id = get_queue_id(dev->data, i);
+                       if (queue_id == (uint16_t) -1)
+                               continue;
+
+                       /* Check if completion head was changed */
+                       q = dev->data->queues[queue_id].queue_private;
+                       ring_head = *q->ring_head_addr;
+                       if (q->shadow_completion_head != ring_head &&
+                               q->irq_enable == 1) {
+                               q->shadow_completion_head = ring_head;
+                               rte_bbdev_pmd_callback_process(
+                                               dev,
+                                               RTE_BBDEV_EVENT_DEQUEUE,
+                                               &queue_id);
+                       }
+               }
+       }
+}
+
+static int
+fpga_queue_intr_enable(struct rte_bbdev *dev, uint16_t queue_id)
+{
+       struct fpga_queue *q = dev->data->queues[queue_id].queue_private;
+
+       if (!rte_intr_cap_multiple(dev->intr_handle))
+               return -ENOTSUP;
+
+       q->irq_enable = 1;
+
+       return 0;
+}
+
+static int
+fpga_queue_intr_disable(struct rte_bbdev *dev, uint16_t queue_id)
+{
+       struct fpga_queue *q = dev->data->queues[queue_id].queue_private;
+       q->irq_enable = 0;
+
+       return 0;
+}
+
+static int
+fpga_intr_enable(struct rte_bbdev *dev)
+{
+       int ret;
+       uint8_t i;
+
+       if (!rte_intr_cap_multiple(dev->intr_handle)) {
+               rte_bbdev_log(ERR, "Multiple intr vector is not supported by FPGA (%s)",
+                               dev->data->name);
+               return -ENOTSUP;
+       }
+
+       /* Create event file descriptors for each of 64 queue. Event fds will be
+        * mapped to FPGA IRQs in rte_intr_enable(). This is a 1:1 mapping where
+        * the IRQ number is a direct translation to the queue number.
+        *
+        * 63 (FPGA_NUM_INTR_VEC) event fds are created as rte_intr_enable()
+        * mapped the first IRQ to already created interrupt event file
+        * descriptor (intr_handle->fd).
+        */
+       if (rte_intr_efd_enable(dev->intr_handle, FPGA_NUM_INTR_VEC)) {
+               rte_bbdev_log(ERR, "Failed to create fds for %u queues",
+                               dev->data->num_queues);
+               return -1;
+       }
+
+       /* TODO Each event file descriptor is overwritten by interrupt event
+        * file descriptor. That descriptor is added to epoll observed list.
+        * It ensures that callback function assigned to that descriptor will
+        * invoked when any FPGA queue issues interrupt.
+        */
+       for (i = 0; i < FPGA_NUM_INTR_VEC; ++i) {
+               if (rte_intr_efds_index_set(dev->intr_handle, i,
+                               rte_intr_fd_get(dev->intr_handle)))
+                       return -rte_errno;
+       }
+
+       if (rte_intr_vec_list_alloc(dev->intr_handle, "intr_vec",
+                       dev->data->num_queues)) {
+               rte_bbdev_log(ERR, "Failed to allocate %u vectors",
+                               dev->data->num_queues);
+               return -ENOMEM;
+       }
+
+       ret = rte_intr_enable(dev->intr_handle);
+       if (ret < 0) {
+               rte_bbdev_log(ERR,
+                               "Couldn't enable interrupts for device: %s",
+                               dev->data->name);
+               return ret;
+       }
+
+       ret = rte_intr_callback_register(dev->intr_handle,
+                       fpga_dev_interrupt_handler, dev);
+       if (ret < 0) {
+               rte_bbdev_log(ERR,
+                               "Couldn't register interrupt callback for device: %s",
+                               dev->data->name);
+               return ret;
+       }
+
+       return 0;
+}
+
 static const struct rte_bbdev_ops fpga_ops = {
        .setup_queues = fpga_setup_queues,
+       .intr_enable = fpga_intr_enable,
        .close = fpga_dev_close,
        .info_get = fpga_dev_info_get,
        .queue_setup = fpga_queue_setup,
        .queue_stop = fpga_queue_stop,
        .queue_start = fpga_queue_start,
        .queue_release = fpga_queue_release,
+       .queue_intr_enable = fpga_queue_intr_enable,
+       .queue_intr_disable = fpga_queue_intr_disable
 };
 
 static inline void
@@ -808,14 +951,14 @@ fpga_dma_desc_te_fill(struct rte_bbdev_enc_op *op,
        desc->num_null = op->ldpc_enc.n_filler;
        /* Set inbound data buffer address */
        desc->in_addr_hi = (uint32_t)(
-                       rte_pktmbuf_mtophys_offset(input, in_offset) >> 32);
+                       rte_pktmbuf_iova_offset(input, in_offset) >> 32);
        desc->in_addr_lw = (uint32_t)(
-                       rte_pktmbuf_mtophys_offset(input, in_offset));
+                       rte_pktmbuf_iova_offset(input, in_offset));
 
        desc->out_addr_hi = (uint32_t)(
-                       rte_pktmbuf_mtophys_offset(output, out_offset) >> 32);
+                       rte_pktmbuf_iova_offset(output, out_offset) >> 32);
        desc->out_addr_lw = (uint32_t)(
-                       rte_pktmbuf_mtophys_offset(output, out_offset));
+                       rte_pktmbuf_iova_offset(output, out_offset));
        /* Save software context needed for dequeue */
        desc->op_addr = op;
        /* Set total number of CBs in an op */
@@ -856,9 +999,9 @@ fpga_dma_desc_ld_fill(struct rte_bbdev_dec_op *op,
        desc->error = 0;
        /* Set inbound data buffer address */
        desc->in_addr_hi = (uint32_t)(
-                       rte_pktmbuf_mtophys_offset(input, in_offset) >> 32);
+                       rte_pktmbuf_iova_offset(input, in_offset) >> 32);
        desc->in_addr_lw = (uint32_t)(
-                       rte_pktmbuf_mtophys_offset(input, in_offset));
+                       rte_pktmbuf_iova_offset(input, in_offset));
        desc->rm_e = op->ldpc_dec.cb_params.e;
        desc->harq_input_length = harq_in_length;
        desc->et_dis = !check_bit(op->ldpc_dec.op_flags,
@@ -879,9 +1022,9 @@ fpga_dma_desc_ld_fill(struct rte_bbdev_dec_op *op,
        desc->max_iter = op->ldpc_dec.iter_max;
        desc->qm_idx = op->ldpc_dec.q_m / 2;
        desc->out_addr_hi = (uint32_t)(
-                       rte_pktmbuf_mtophys_offset(output, out_offset) >> 32);
+                       rte_pktmbuf_iova_offset(output, out_offset) >> 32);
        desc->out_addr_lw = (uint32_t)(
-                       rte_pktmbuf_mtophys_offset(output, out_offset));
+                       rte_pktmbuf_iova_offset(output, out_offset));
        /* Save software context needed for dequeue */
        desc->op_addr = op;
        /* Set total number of CBs in an op */
@@ -926,14 +1069,14 @@ validate_enc_op(struct rte_bbdev_enc_op *op __rte_unused)
                                ldpc_enc->basegraph);
                return -1;
        }
-       if (ldpc_enc->code_block_mode > 1) {
+       if (ldpc_enc->code_block_mode > RTE_BBDEV_CODE_BLOCK) {
                rte_bbdev_log(ERR,
                                "code_block_mode (%u) is out of range 0:Tb 1:CB",
                                ldpc_enc->code_block_mode);
                return -1;
        }
 
-       if (ldpc_enc->code_block_mode == 0) {
+       if (ldpc_enc->code_block_mode == RTE_BBDEV_TRANSPORT_BLOCK) {
                tb = &ldpc_enc->tb_params;
                if (tb->c == 0) {
                        rte_bbdev_log(ERR,
@@ -1019,14 +1162,14 @@ validate_dec_op(struct rte_bbdev_dec_op *op __rte_unused)
                return -1;
        }
 
-       if (ldpc_dec->code_block_mode > 1) {
+       if (ldpc_dec->code_block_mode > RTE_BBDEV_CODE_BLOCK) {
                rte_bbdev_log(ERR,
                                "code_block_mode (%u) is out of range 0 <= value <= 1",
                                ldpc_dec->code_block_mode);
                return -1;
        }
 
-       if (ldpc_dec->code_block_mode == 0) {
+       if (ldpc_dec->code_block_mode == RTE_BBDEV_TRANSPORT_BLOCK) {
                tb = &ldpc_dec->tb_params;
                if (tb->c < 1) {
                        rte_bbdev_log(ERR,
@@ -1228,7 +1371,7 @@ enqueue_ldpc_enc_one_op_cb(struct fpga_queue *q, struct rte_bbdev_enc_op *op,
        if (enc->op_flags & RTE_BBDEV_LDPC_CRC_24B_ATTACH)
                crc24_bits = 24;
 
-       if (enc->code_block_mode == 0) {
+       if (enc->code_block_mode == RTE_BBDEV_TRANSPORT_BLOCK) {
                /* For Transport Block mode */
                /* FIXME */
                c = enc->tb_params.c;
@@ -1697,7 +1840,7 @@ fpga_5gnr_fec_init(struct rte_bbdev *dev, struct rte_pci_driver *drv)
 
        rte_bbdev_log_debug(
                        "Init device %s [%s] @ virtaddr %p phyaddr %#"PRIx64,
-                       dev->device->driver->name, dev->data->name,
+                       drv->driver.name, dev->data->name,
                        (void *)pci_dev->mem_resource[0].addr,
                        pci_dev->mem_resource[0].phys_addr);
 }
@@ -1737,7 +1880,7 @@ fpga_5gnr_fec_probe(struct rte_pci_driver *pci_drv,
 
        /* Fill HW specific part of device structure */
        bbdev->device = &pci_dev->device;
-       bbdev->intr_handle = &pci_dev->intr_handle;
+       bbdev->intr_handle = pci_dev->intr_handle;
        bbdev->data->socket_id = pci_dev->device.numa_node;
 
        /* Invoke FEC FPGA device initialization function */
@@ -1753,7 +1896,7 @@ fpga_5gnr_fec_probe(struct rte_pci_driver *pci_drv,
                ((uint16_t)(version_id >> 16)), ((uint16_t)version_id));
 
 #ifdef RTE_LIBRTE_BBDEV_DEBUG
-       if (!strcmp(bbdev->device->driver->name,
+       if (!strcmp(pci_drv->driver.name,
                        RTE_STR(FPGA_5GNR_FEC_PF_DRIVER_NAME)))
                print_static_reg_debug_info(d->mmio_base);
 #endif
@@ -1802,10 +1945,10 @@ fpga_5gnr_fec_remove(struct rte_pci_device *pci_dev)
 }
 
 static inline void
-set_default_fpga_conf(struct fpga_5gnr_fec_conf *def_conf)
+set_default_fpga_conf(struct rte_fpga_5gnr_fec_conf *def_conf)
 {
        /* clear default configuration before initialization */
-       memset(def_conf, 0, sizeof(struct fpga_5gnr_fec_conf));
+       memset(def_conf, 0, sizeof(struct rte_fpga_5gnr_fec_conf));
        /* Set pf mode to true */
        def_conf->pf_mode_en = true;
 
@@ -1820,15 +1963,15 @@ set_default_fpga_conf(struct fpga_5gnr_fec_conf *def_conf)
 
 /* Initial configuration of FPGA 5GNR FEC device */
 int
-fpga_5gnr_fec_configure(const char *dev_name,
-               const struct fpga_5gnr_fec_conf *conf)
+rte_fpga_5gnr_fec_configure(const char *dev_name,
+               const struct rte_fpga_5gnr_fec_conf *conf)
 {
        uint32_t payload_32, address;
        uint16_t payload_16;
        uint8_t payload_8;
        uint16_t q_id, vf_id, total_q_id, total_ul_q_id, total_dl_q_id;
        struct rte_bbdev *bbdev = rte_bbdev_get_named_dev(dev_name);
-       struct fpga_5gnr_fec_conf def_conf;
+       struct rte_fpga_5gnr_fec_conf def_conf;
 
        if (bbdev == NULL) {
                rte_bbdev_log(ERR,
@@ -2035,14 +2178,3 @@ RTE_PMD_REGISTER_PCI_TABLE(FPGA_5GNR_FEC_PF_DRIVER_NAME,
 RTE_PMD_REGISTER_PCI(FPGA_5GNR_FEC_VF_DRIVER_NAME, fpga_5gnr_fec_pci_vf_driver);
 RTE_PMD_REGISTER_PCI_TABLE(FPGA_5GNR_FEC_VF_DRIVER_NAME,
                pci_id_fpga_5gnr_fec_vf_map);
-
-RTE_INIT(fpga_5gnr_fec_init_log)
-{
-       fpga_5gnr_fec_logtype = rte_log_register("pmd.bb.fpga_5gnr_fec");
-       if (fpga_5gnr_fec_logtype >= 0)
-#ifdef RTE_LIBRTE_BBDEV_DEBUG
-               rte_log_set_level(fpga_5gnr_fec_logtype, RTE_LOG_DEBUG);
-#else
-               rte_log_set_level(fpga_5gnr_fec_logtype, RTE_LOG_NOTICE);
-#endif
-}