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[64.35.205.155]) by smtp.googlemail.com with ESMTPSA id m1-20020a056e020de100b002faecf63c48sm2336169ilj.79.2022.10.26.12.46.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 26 Oct 2022 12:46:40 -0700 (PDT) From: John Miller To: nicolas.chautru@intel.com Cc: dev@dpdk.org, ed.czeck@atomicrules.com, shepard.siegel@atomicrules.com, John Miller Subject: [PATCH 10/14] baseband/ark: introduce ark baseband driver Date: Wed, 26 Oct 2022 15:46:09 -0400 Message-Id: <20221026194613.1008232-10-john.miller@atomicrules.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20221026194613.1008232-1-john.miller@atomicrules.com> References: <20221026194613.1008232-1-john.miller@atomicrules.com> MIME-Version: 1.0 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org This patch introduces the Arkville baseband device driver. Signed-off-by: John Miller --- drivers/baseband/ark/ark_bbdev.c | 1127 ++++++++++++++++++++++++++++++ drivers/baseband/ark/ark_bbext.h | 163 +++++ 2 files changed, 1290 insertions(+) create mode 100644 drivers/baseband/ark/ark_bbdev.c create mode 100644 drivers/baseband/ark/ark_bbext.h diff --git a/drivers/baseband/ark/ark_bbdev.c b/drivers/baseband/ark/ark_bbdev.c new file mode 100644 index 0000000000..8736d170d1 --- /dev/null +++ b/drivers/baseband/ark/ark_bbdev.c @@ -0,0 +1,1127 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2016-2021 Atomic Rules LLC + */ + +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "ark_common.h" +#include "ark_bbdev_common.h" +#include "ark_bbdev_custom.h" +#include "ark_ddm.h" +#include "ark_mpu.h" +#include "ark_rqp.h" +#include "ark_udm.h" +#include "ark_bbext.h" + +#define DRIVER_NAME baseband_ark + +#define ARK_SYSCTRL_BASE 0x0 +#define ARK_PKTGEN_BASE 0x10000 +#define ARK_MPU_RX_BASE 0x20000 +#define ARK_UDM_BASE 0x30000 +#define ARK_MPU_TX_BASE 0x40000 +#define ARK_DDM_BASE 0x60000 +#define ARK_PKTDIR_BASE 0xa0000 +#define ARK_PKTCHKR_BASE 0x90000 +#define ARK_RCPACING_BASE 0xb0000 +#define ARK_MPU_QOFFSET 0x00100 + +#define BB_ARK_TX_Q_FACTOR 4 + +#define ARK_RX_META_SIZE 32 +#define ARK_RX_META_OFFSET (RTE_PKTMBUF_HEADROOM - ARK_RX_META_SIZE) +#define ARK_RX_MAX_NOCHAIN (RTE_MBUF_DEFAULT_DATAROOM) + +static_assert(sizeof(struct ark_rx_meta) == ARK_RX_META_SIZE, "Unexpected struct size ark_rx_meta"); +static_assert(sizeof(union ark_tx_meta) == 8, "Unexpected struct size ark_tx_meta"); + +static struct rte_pci_id pci_id_ark[] = { + {RTE_PCI_DEVICE(AR_VENDOR_ID, 0x1015)}, + {RTE_PCI_DEVICE(AR_VENDOR_ID, 0x1016)}, + {.device_id = 0}, +}; + +static const struct ark_dev_caps +ark_device_caps[] = { + SET_DEV_CAPS(0x1015, true, false), + SET_DEV_CAPS(0x1016, true, false), + {.device_id = 0,} +}; + + +/* Forward declarations */ +static const struct rte_bbdev_ops ark_bbdev_pmd_ops; + +static int +check_for_ext(struct ark_bbdevice *ark) +{ + /* Get the env */ + const char *dllpath = getenv("ARK_BBEXT_PATH"); + + if (dllpath == NULL) { + ARK_BBDEV_LOG(DEBUG, "EXT NO dll path specified\n"); + return 0; + } + ARK_BBDEV_LOG(NOTICE, "EXT found dll path at %s\n", dllpath); + + /* Open and load the .so */ + ark->d_handle = dlopen(dllpath, RTLD_LOCAL | RTLD_LAZY); + if (ark->d_handle == NULL) { + ARK_BBDEV_LOG(ERR, "Could not load user extension %s\n", + dllpath); + return -1; + } + ARK_BBDEV_LOG(DEBUG, "SUCCESS: loaded user extension %s\n", + dllpath); + + /* Get the entry points */ + ark->user_ext.dev_init = + (void *(*)(struct rte_bbdev *, void *)) + dlsym(ark->d_handle, "rte_pmd_ark_bbdev_init"); + + ark->user_ext.dev_uninit = + (int (*)(struct rte_bbdev *, void *)) + dlsym(ark->d_handle, "rte_pmd_ark_dev_uninit"); + ark->user_ext.dev_start = + (int (*)(struct rte_bbdev *, void *)) + dlsym(ark->d_handle, "rte_pmd_ark_bbdev_start"); + ark->user_ext.dev_stop = + (int (*)(struct rte_bbdev *, void *)) + dlsym(ark->d_handle, "rte_pmd_ark_bbdev_stop"); + ark->user_ext.dequeue_ldpc_dec = + (int (*)(struct rte_bbdev *, + struct rte_bbdev_dec_op *, + uint32_t *, + void *)) + dlsym(ark->d_handle, "rte_pmd_ark_bbdev_dequeue_ldpc_dec"); + ark->user_ext.enqueue_ldpc_dec = + (int (*)(struct rte_bbdev *, + struct rte_bbdev_dec_op *, + uint32_t *, + uint8_t *, + void *)) + dlsym(ark->d_handle, "rte_pmd_ark_bbdev_enqueue_ldpc_dec"); + ark->user_ext.dequeue_ldpc_enc = + (int (*)(struct rte_bbdev *, + struct rte_bbdev_enc_op *, + uint32_t *, + void *)) + dlsym(ark->d_handle, "rte_pmd_ark_bbdev_dequeue_ldpc_enc"); + ark->user_ext.enqueue_ldpc_enc = + (int (*)(struct rte_bbdev *, + struct rte_bbdev_enc_op *, + uint32_t *, + uint8_t *, + void *)) + dlsym(ark->d_handle, "rte_pmd_ark_bbdev_enqueue_ldpc_enc"); + + return 0; +} + + +/* queue */ +struct ark_bbdev_queue { + struct ark_bbdevice *ark_bbdev; + + struct rte_ring *active_ops; /* Ring for processed packets */ + + /* RX components */ + /* array of physical addresses of the mbuf data pointer */ + rte_iova_t *rx_paddress_q; + struct ark_udm_t *udm; + struct ark_mpu_t *rx_mpu; + + /* TX components */ + union ark_tx_meta *tx_meta_q; + struct ark_mpu_t *tx_mpu; + struct ark_ddm_t *ddm; + + /* */ + uint32_t tx_queue_mask; + uint32_t rx_queue_mask; + + int32_t rx_seed_index; /* step 1 set with empty mbuf */ + int32_t rx_cons_index; /* step 3 consumed by driver */ + + /* 3 indexes to the paired data rings. */ + int32_t tx_prod_index; /* where to put the next one */ + int32_t tx_free_index; /* local copy of tx_cons_index */ + + /* separate cache line -- written by FPGA -- RX announce */ + RTE_MARKER cacheline1 __rte_cache_min_aligned; + volatile int32_t rx_prod_index; /* step 2 filled by FPGA */ + + /* Separate cache line -- written by FPGA -- RX completion */ + RTE_MARKER cacheline2 __rte_cache_min_aligned; + volatile int32_t tx_cons_index; /* hw is done, can be freed */ +} __rte_cache_aligned; + + +static int +ark_bb_hw_q_setup(struct rte_bbdev *bbdev, uint16_t q_id, uint16_t queue_size) +{ + struct ark_bbdev_queue *q = bbdev->data->queues[q_id].queue_private; + + rte_iova_t queue_base; + rte_iova_t phys_addr_q_base; + rte_iova_t phys_addr_prod_index; + rte_iova_t phys_addr_cons_index; + + if (ark_mpu_verify(q->rx_mpu, sizeof(rte_iova_t))) { + ARK_BBDEV_LOG(ERR, "Illegal hw/sw configuration RX queue"); + return -1; + } + ARK_BBDEV_LOG(DEBUG, "ark_bb_q setup %u:%u", + bbdev->data->dev_id, q_id); + + /* RX MPU */ + phys_addr_q_base = rte_malloc_virt2iova(q->rx_paddress_q); + /* Force TX mode on MPU to match bbdev behavior */ + ark_mpu_configure(q->rx_mpu, phys_addr_q_base, queue_size, 1); + ark_mpu_start(q->rx_mpu); + + /* UDM */ + queue_base = rte_malloc_virt2iova(q); + phys_addr_prod_index = queue_base + + offsetof(struct ark_bbdev_queue, rx_prod_index); + ark_udm_write_addr(q->udm, phys_addr_prod_index); + ark_udm_queue_enable(q->udm, 1); + + /* TX MPU */ + phys_addr_q_base = rte_malloc_virt2iova(q->tx_meta_q); + ark_mpu_configure(q->tx_mpu, phys_addr_q_base, + BB_ARK_TX_Q_FACTOR * queue_size, 1); + ark_mpu_start(q->tx_mpu); + + /* DDM */ + phys_addr_cons_index = queue_base + + offsetof(struct ark_bbdev_queue, tx_cons_index); + ark_ddm_queue_setup(q->ddm, phys_addr_cons_index); + ark_ddm_queue_reset_stats(q->ddm); + + return 0; +} + + + +/* Setup a queue */ +static int +ark_bb_q_setup(struct rte_bbdev *bbdev, uint16_t q_id, + const struct rte_bbdev_queue_conf *queue_conf) +{ + struct ark_bbdev_queue *q; + struct ark_bbdevice *ark_bb = bbdev->data->dev_private; + + const uint32_t queue_size = queue_conf->queue_size; + const int socket_id = queue_conf->socket; + const uint64_t pg_sz = sysconf(_SC_PAGESIZE); + char ring_name[RTE_RING_NAMESIZE]; + + /* Configuration checks */ + if (!rte_is_power_of_2(queue_size)) { + ARK_BBDEV_LOG(ERR, + "Configuration queue size" + " must be power of two %u", + queue_size); + return -EINVAL; + } + + if (RTE_PKTMBUF_HEADROOM < ARK_RX_META_SIZE) { + ARK_BBDEV_LOG(ERR, + "Error: Ark bbdev requires head room > %d bytes (%s)", + ARK_RX_META_SIZE, __func__); + return -EINVAL; + } + + /* Allocate the queue data structure. */ + q = rte_zmalloc_socket(RTE_STR(DRIVER_NAME), sizeof(*q), + RTE_CACHE_LINE_SIZE, queue_conf->socket); + if (q == NULL) { + ARK_BBDEV_LOG(ERR, "Failed to allocate queue memory"); + return -ENOMEM; + } + bbdev->data->queues[q_id].queue_private = q; + q->ark_bbdev = ark_bb; + + /* RING */ + snprintf(ring_name, RTE_RING_NAMESIZE, RTE_STR(DRIVER_NAME) "%u:%u", + bbdev->data->dev_id, q_id); + q->active_ops = rte_ring_create(ring_name, + queue_size, + queue_conf->socket, + RING_F_SP_ENQ | RING_F_SC_DEQ); + if (q->active_ops == NULL) { + ARK_BBDEV_LOG(ERR, "Failed to create ring"); + goto free_all; + } + + q->rx_queue_mask = queue_size - 1; + q->tx_queue_mask = (BB_ARK_TX_Q_FACTOR * queue_size) - 1; + + /* Each mbuf requires 2 to 4 objects, factor by BB_ARK_TX_Q_FACTOR */ + q->tx_meta_q = + rte_zmalloc_socket("Ark_bb_txqueue meta", + queue_size * BB_ARK_TX_Q_FACTOR * + sizeof(union ark_tx_meta), + pg_sz, + socket_id); + + if (q->tx_meta_q == 0) { + ARK_BBDEV_LOG(ERR, "Failed to allocate " + "queue memory in %s", __func__); + goto free_all; + } + + q->ddm = RTE_PTR_ADD(ark_bb->ddm.v, q_id * ARK_DDM_QOFFSET); + q->tx_mpu = RTE_PTR_ADD(ark_bb->mputx.v, q_id * ARK_MPU_QOFFSET); + + q->rx_paddress_q = + rte_zmalloc_socket("ark_bb_rx_paddress_q", + queue_size * sizeof(rte_iova_t), + pg_sz, + socket_id); + + if (q->rx_paddress_q == 0) { + ARK_BBDEV_LOG(ERR, + "Failed to allocate queue memory in %s", + __func__); + goto free_all; + } + q->udm = RTE_PTR_ADD(ark_bb->udm.v, q_id * ARK_UDM_QOFFSET); + q->rx_mpu = RTE_PTR_ADD(ark_bb->mpurx.v, q_id * ARK_MPU_QOFFSET); + + /* Structure have been configured, set the hardware */ + return ark_bb_hw_q_setup(bbdev, q_id, queue_size); + +free_all: + rte_free(q->tx_meta_q); + rte_free(q->rx_paddress_q); + rte_free(q); + return -EFAULT; +} + + +/* Release queue */ +static int +ark_bb_q_release(struct rte_bbdev *bbdev, uint16_t q_id) +{ + struct ark_bbdev_queue *q = bbdev->data->queues[q_id].queue_private; + + ark_mpu_dump(q->rx_mpu, "rx_MPU release", q_id); + ark_mpu_dump(q->tx_mpu, "tx_MPU release", q_id); + + rte_ring_free(q->active_ops); + rte_free(q->tx_meta_q); + rte_free(q->rx_paddress_q); + rte_free(q); + bbdev->data->queues[q_id].queue_private = NULL; + + ARK_BBDEV_LOG(DEBUG, "released device queue %u:%u", + bbdev->data->dev_id, q_id); + return 0; +} + +static int +ark_bbdev_start(struct rte_bbdev *bbdev) +{ + struct ark_bbdevice *ark_bb = bbdev->data->dev_private; + + ARK_BBDEV_LOG(DEBUG, "Starting device %u", bbdev->data->dev_id); + if (ark_bb->started) + return 0; + + /* User start hook */ + if (ark_bb->user_ext.dev_start) + ark_bb->user_ext.dev_start(bbdev, + ark_bb->user_data); + + ark_bb->started = 1; + + if (ark_bb->start_pg) + ark_pktchkr_run(ark_bb->pc); + + if (ark_bb->start_pg) { + pthread_t thread; + + /* Delay packet generator start allow the hardware to be ready + * This is only used for sanity checking with internal generator + */ + if (pthread_create(&thread, NULL, + ark_pktgen_delay_start, ark_bb->pg)) { + ARK_BBDEV_LOG(ERR, "Could not create pktgen " + "starter thread"); + return -1; + } + } + + return 0; +} + + +static void +ark_bbdev_stop(struct rte_bbdev *bbdev) +{ + struct ark_bbdevice *ark_bb = bbdev->data->dev_private; + + ARK_BBDEV_LOG(DEBUG, "Stopping device %u", bbdev->data->dev_id); + + if (!ark_bb->started) + return; + + /* Stop the packet generator */ + if (ark_bb->start_pg) + ark_pktgen_pause(ark_bb->pg); + + /* STOP RX Side */ + ark_udm_dump_stats(ark_bb->udm.v, "Post stop"); + + /* Stop the packet checker if it is running */ + if (ark_bb->start_pg) { + ark_pktchkr_dump_stats(ark_bb->pc); + ark_pktchkr_stop(ark_bb->pc); + } + + /* User stop hook */ + if (ark_bb->user_ext.dev_stop) + ark_bb->user_ext.dev_stop(bbdev, + ark_bb->user_data); + +} + + +static int +ark_bb_q_start(struct rte_bbdev *bbdev, uint16_t q_id) +{ + struct ark_bbdev_queue *q = bbdev->data->queues[q_id].queue_private; + ARK_BBDEV_LOG(DEBUG, "ark_bb_q start %u:%u", bbdev->data->dev_id, q_id); + ark_ddm_queue_enable(q->ddm, 1); + ark_udm_queue_enable(q->udm, 1); + ark_mpu_start(q->tx_mpu); + ark_mpu_start(q->rx_mpu); + return 0; +} +static int +ark_bb_q_stop(struct rte_bbdev *bbdev, uint16_t q_id) +{ + struct ark_bbdev_queue *q = bbdev->data->queues[q_id].queue_private; + int cnt = 0; + + ARK_BBDEV_LOG(DEBUG, "ark_bb_q stop %u:%u", bbdev->data->dev_id, q_id); + + while (q->tx_cons_index != q->tx_prod_index) { + usleep(100); + if (cnt++ > 10000) { + fprintf(stderr, "XXXX %s(%u, %u %u) %d Failured\n", __func__, q_id, + q->tx_cons_index, q->tx_prod_index, + (int32_t) (q->tx_prod_index - q->tx_cons_index)); + return -1; + } + } + + ark_mpu_stop(q->tx_mpu); + ark_mpu_stop(q->rx_mpu); + ark_udm_queue_enable(q->udm, 0); + ark_ddm_queue_enable(q->ddm, 0); + return 0; +} + + + + +/* ************************************************************************* */ +/* Common function for all enqueue and dequeue ops */ +static inline void +ark_bb_enqueue_desc_fill(struct ark_bbdev_queue *q, + struct rte_mbuf *mbuf, + uint16_t offset, /* Extra offset */ + uint8_t flags, + uint32_t *meta, + uint8_t meta_cnt /* 0, 1 or 2 */ + ) +{ + union ark_tx_meta *tx_meta; + int32_t tx_idx; + uint8_t m; + + /* Header */ + tx_idx = q->tx_prod_index & q->tx_queue_mask; + tx_meta = &q->tx_meta_q[tx_idx]; + tx_meta->data_len = rte_pktmbuf_data_len(mbuf) - offset; + tx_meta->flags = flags; + tx_meta->meta_cnt = meta_cnt; + tx_meta->user1 = *meta++; + q->tx_prod_index++; + + for (m = 0; m < meta_cnt; m++) { + tx_idx = q->tx_prod_index & q->tx_queue_mask; + tx_meta = &q->tx_meta_q[tx_idx]; + tx_meta->usermeta0 = *meta++; + tx_meta->usermeta1 = *meta++; + q->tx_prod_index++; + } + + tx_idx = q->tx_prod_index & q->tx_queue_mask; + tx_meta = &q->tx_meta_q[tx_idx]; + tx_meta->physaddr = rte_mbuf_data_iova(mbuf) + offset; + q->tx_prod_index++; +} + +static inline void +ark_bb_enqueue_segmented_pkt(struct ark_bbdev_queue *q, + struct rte_mbuf *mbuf, + uint16_t offset, + uint32_t *meta, uint8_t meta_cnt) +{ + struct rte_mbuf *next; + uint8_t flags = ARK_DDM_SOP; + + while (mbuf != NULL) { + next = mbuf->next; + flags |= (next == NULL) ? ARK_DDM_EOP : 0; + + ark_bb_enqueue_desc_fill(q, mbuf, offset, flags, + meta, meta_cnt); + + flags &= ~ARK_DDM_SOP; /* drop SOP flags */ + meta_cnt = 0; + offset = 0; + + mbuf = next; + } +} + +static inline int +ark_bb_enqueue_common(struct ark_bbdev_queue *q, + struct rte_mbuf *m_in, struct rte_mbuf *m_out, + uint16_t offset, + uint32_t *meta, uint8_t meta_cnt) +{ + int32_t free_queue_space; + int32_t rx_idx; + + /* TX side limit */ + free_queue_space = q->tx_queue_mask - + (q->tx_prod_index - q->tx_free_index); + if (unlikely(free_queue_space < (2 + (2 * m_in->nb_segs)))) + return 1; + + /* RX side limit */ + free_queue_space = q->rx_queue_mask - + (q->rx_seed_index - q->rx_cons_index); + if (unlikely(free_queue_space < m_out->nb_segs)) + return 1; + + if (unlikely(m_in->nb_segs > 1)) + ark_bb_enqueue_segmented_pkt(q, m_in, offset, meta, meta_cnt); + else + ark_bb_enqueue_desc_fill(q, m_in, offset, + ARK_DDM_SOP | ARK_DDM_EOP, + meta, meta_cnt); + + /* We assume that the return mubf has exactly enough segments for + * return data, which is 2048 bytes per segment. + */ + do { + rx_idx = q->rx_seed_index & q->rx_queue_mask; + q->rx_paddress_q[rx_idx] = m_out->buf_iova; + q->rx_seed_index++; + m_out = m_out->next; + } while (m_out); + + return 0; +} + +static inline void +ark_bb_enqueue_finalize(struct rte_bbdev_queue_data *q_data, + struct ark_bbdev_queue *q, + void **ops, + uint16_t nb_ops, uint16_t nb) +{ + /* BBDEV global stats */ + /* These are not really errors, not sure why bbdev counts these. */ + q_data->queue_stats.enqueue_err_count += nb_ops - nb; + q_data->queue_stats.enqueued_count += nb; + + /* Notify HW that */ + if (unlikely(nb == 0)) + return; + + ark_mpu_set_producer(q->tx_mpu, q->tx_prod_index); + ark_mpu_set_producer(q->rx_mpu, q->rx_seed_index); + + /* Queue info for dequeue-side processing */ + rte_ring_enqueue_burst(q->active_ops, + (void **)ops, nb, NULL); +} + +static int +ark_bb_dequeue_segmented(struct rte_mbuf *mbuf0, + int32_t *prx_cons_index, + uint16_t pkt_len + ) +{ + struct rte_mbuf *mbuf; + uint16_t data_len; + uint16_t remaining; + uint16_t segments = 1; + + data_len = RTE_MIN(pkt_len, RTE_MBUF_DEFAULT_DATAROOM); + remaining = pkt_len - data_len; + + mbuf = mbuf0; + mbuf0->data_len = data_len; + while (remaining) { + segments += 1; + mbuf = mbuf->next; + if (unlikely(mbuf == 0)) { + ARK_BBDEV_LOG(CRIT, "Expected chained mbuf with " + "at least %d segments for dequeue " + "of packet length %d", + segments, pkt_len); + return 1; + } + + data_len = RTE_MIN(remaining, + RTE_MBUF_DEFAULT_DATAROOM); + remaining -= data_len; + + mbuf->data_len = data_len; + *prx_cons_index += 1; + } + + if (mbuf->next != 0) { + ARK_BBDEV_LOG(CRIT, "Expected chained mbuf with " + "at exactly %d segments for dequeue " + "of packet length %d. Found %d " + "segments", + segments, pkt_len, mbuf0->nb_segs); + return 1; + } + return 0; +} + +/* ************************************************************************* */ +/* LDPC Decode ops */ +static int16_t +ark_bb_enqueue_ldpc_dec_one_op(struct ark_bbdev_queue *q, + struct rte_bbdev_dec_op *this_op) +{ + struct rte_bbdev_op_ldpc_dec *ldpc_dec_op = &this_op->ldpc_dec; + struct rte_mbuf *m_in = ldpc_dec_op->input.data; + struct rte_mbuf *m_out = ldpc_dec_op->hard_output.data; + uint16_t offset = ldpc_dec_op->input.offset; + uint32_t meta[5] = {0}; + uint8_t meta_cnt = 0; + + if (q->ark_bbdev->user_ext.enqueue_ldpc_dec) { + if (q->ark_bbdev->user_ext.enqueue_ldpc_dec(q->ark_bbdev->bbdev, + this_op, + meta, + &meta_cnt, + q->ark_bbdev->user_data)) { + ARK_BBDEV_LOG(ERR, "%s failed", __func__); + return 1; + } + } + + return ark_bb_enqueue_common(q, m_in, m_out, offset, meta, meta_cnt); +} + +/* Enqueue LDPC Decode -- burst */ +static uint16_t +ark_bb_enqueue_ldpc_dec_ops(struct rte_bbdev_queue_data *q_data, + struct rte_bbdev_dec_op **ops, uint16_t nb_ops) +{ + struct ark_bbdev_queue *q = q_data->queue_private; + unsigned int max_enq; + uint16_t nb; + + max_enq = rte_ring_free_count(q->active_ops); + max_enq = RTE_MIN(max_enq, nb_ops); + for (nb = 0; nb < max_enq; nb++) { + if (ark_bb_enqueue_ldpc_dec_one_op(q, ops[nb])) + break; + } + + ark_bb_enqueue_finalize(q_data, q, (void **)ops, nb_ops, nb); + return nb; +} + + +/* ************************************************************************* */ +/* Dequeue LDPC Decode -- burst */ +static uint16_t +ark_bb_dequeue_ldpc_dec_ops(struct rte_bbdev_queue_data *q_data, + struct rte_bbdev_dec_op **ops, uint16_t nb_ops) +{ + struct ark_bbdev_queue *q = q_data->queue_private; + struct rte_mbuf *mbuf; + struct rte_bbdev_dec_op *this_op; + struct ark_rx_meta *meta; + uint32_t *usermeta; + + uint16_t nb = 0; + int32_t prod_index = q->rx_prod_index; + int32_t cons_index = q->rx_cons_index; + + q->tx_free_index = q->tx_cons_index; + + while ((prod_index - cons_index) > 0) { + if (rte_ring_dequeue(q->active_ops, (void **)&this_op)) { + ARK_BBDEV_LOG(ERR, "%s data ready but no op!", + __func__); + q_data->queue_stats.dequeue_err_count += 1; + break; + } + ops[nb] = this_op; + + mbuf = this_op->ldpc_dec.hard_output.data; + + /* META DATA embedded in headroom */ + meta = RTE_PTR_ADD(mbuf->buf_addr, ARK_RX_META_OFFSET); + + mbuf->pkt_len = meta->pkt_len; + mbuf->data_len = meta->pkt_len; + + if (unlikely(meta->pkt_len > ARK_RX_MAX_NOCHAIN)) { + if (ark_bb_dequeue_segmented(mbuf, &cons_index, + meta->pkt_len)) + q_data->queue_stats.dequeue_err_count += 1; + } else if (mbuf->next != 0) { + ARK_BBDEV_LOG(CRIT, "Expected mbuf with " + "at exactly 1 segments for dequeue " + "of packet length %d. Found %d " + "segments", + meta->pkt_len, mbuf->nb_segs); + q_data->queue_stats.dequeue_err_count += 1; + } + + usermeta = meta->user_meta; + + /* User's meta move from Arkville HW to bbdev OP */ + if (q->ark_bbdev->user_ext.dequeue_ldpc_dec) { + if (q->ark_bbdev->user_ext.dequeue_ldpc_dec(q->ark_bbdev->bbdev, + this_op, + usermeta, + q->ark_bbdev->user_data)) { + ARK_BBDEV_LOG(ERR, "%s failed", __func__); + return 1; + } + } + + nb++; + cons_index++; + if (nb >= nb_ops) + break; + } + + q->rx_cons_index = cons_index; + + /* BBdev stats */ + q_data->queue_stats.dequeued_count += nb; + + return nb; +} + +/**************************************************************************/ +/* Enqueue LDPC Encode */ +static int16_t +ark_bb_enqueue_ldpc_enc_one_op(struct ark_bbdev_queue *q, + struct rte_bbdev_enc_op *this_op) +{ + struct rte_bbdev_op_ldpc_enc *ldpc_enc_op = &this_op->ldpc_enc; + struct rte_mbuf *m_in = ldpc_enc_op->input.data; + struct rte_mbuf *m_out = ldpc_enc_op->output.data; + uint16_t offset = ldpc_enc_op->input.offset; + uint32_t meta[5] = {0}; + uint8_t meta_cnt = 0; + + /* User's meta move from bbdev op to Arkville HW */ + if (q->ark_bbdev->user_ext.enqueue_ldpc_enc) { + if (q->ark_bbdev->user_ext.enqueue_ldpc_enc(q->ark_bbdev->bbdev, + this_op, + meta, + &meta_cnt, + q->ark_bbdev->user_data)) { + ARK_BBDEV_LOG(ERR, "%s failed", __func__); + return 1; + } + } + + return ark_bb_enqueue_common(q, m_in, m_out, offset, meta, meta_cnt); +} + +/* Enqueue LDPC Encode -- burst */ +static uint16_t +ark_bb_enqueue_ldpc_enc_ops(struct rte_bbdev_queue_data *q_data, + struct rte_bbdev_enc_op **ops, uint16_t nb_ops) +{ + struct ark_bbdev_queue *q = q_data->queue_private; + unsigned int max_enq; + uint16_t nb; + + max_enq = rte_ring_free_count(q->active_ops); + max_enq = RTE_MIN(max_enq, nb_ops); + for (nb = 0; nb < max_enq; nb++) { + if (ark_bb_enqueue_ldpc_enc_one_op(q, ops[nb])) + break; + } + + ark_bb_enqueue_finalize(q_data, q, (void **)ops, nb_ops, nb); + return nb; +} + +/* Dequeue LDPC Encode -- burst */ +static uint16_t +ark_bb_dequeue_ldpc_enc_ops(struct rte_bbdev_queue_data *q_data, + struct rte_bbdev_enc_op **ops, uint16_t nb_ops) +{ + struct ark_bbdev_queue *q = q_data->queue_private; + struct rte_mbuf *mbuf; + struct rte_bbdev_enc_op *this_op; + struct ark_rx_meta *meta; + uint32_t *usermeta; + + uint16_t nb = 0; + int32_t prod_index = q->rx_prod_index; + int32_t cons_index = q->rx_cons_index; + + q->tx_free_index = q->tx_cons_index; + + while ((prod_index - cons_index) > 0) { + if (rte_ring_dequeue(q->active_ops, (void **)&this_op)) { + ARK_BBDEV_LOG(ERR, "%s data ready but no op!", + __func__); + q_data->queue_stats.dequeue_err_count += 1; + break; + } + ops[nb] = this_op; + + mbuf = this_op->ldpc_enc.output.data; + + /* META DATA embedded in headroom */ + meta = RTE_PTR_ADD(mbuf->buf_addr, ARK_RX_META_OFFSET); + + mbuf->pkt_len = meta->pkt_len; + mbuf->data_len = meta->pkt_len; + usermeta = meta->user_meta; + + if (unlikely(meta->pkt_len > ARK_RX_MAX_NOCHAIN)) { + if (ark_bb_dequeue_segmented(mbuf, &cons_index, + meta->pkt_len)) + q_data->queue_stats.dequeue_err_count += 1; + } else if (mbuf->next != 0) { + ARK_BBDEV_LOG(CRIT, "Expected mbuf with " + "at exactly 1 segments for dequeue " + "of packet length %d. Found %d " + "segments", + meta->pkt_len, mbuf->nb_segs); + q_data->queue_stats.dequeue_err_count += 1; + } + + /* User's meta move from Arkville HW to bbdev OP */ + if (q->ark_bbdev->user_ext.dequeue_ldpc_enc) { + if (q->ark_bbdev->user_ext.dequeue_ldpc_enc(q->ark_bbdev->bbdev, + this_op, + usermeta, + q->ark_bbdev->user_data)) { + ARK_BBDEV_LOG(ERR, "%s failed", __func__); + return 1; + } + } + + nb++; + cons_index++; + if (nb >= nb_ops) + break; + } + + q->rx_cons_index = cons_index; + + /* BBdev stats */ + q_data->queue_stats.dequeued_count += nb; + + return nb; +} + + +/**************************************************************************/ +/* + *Initial device hardware configuration when device is opened + * setup the DDM, and UDM; called once per PCIE device + */ +static int +ark_bb_config_device(struct ark_bbdevice *ark_bb) +{ + uint16_t num_q, i; + struct ark_mpu_t *mpu; + + /* + * Make sure that the packet director, generator and checker are in a + * known state + */ + ark_bb->start_pg = 0; + ark_bb->pg = ark_pktgen_init(ark_bb->pktgen.v, 0, 1); + if (ark_bb->pg == NULL) + return -1; + ark_pktgen_reset(ark_bb->pg); + ark_bb->pc = ark_pktchkr_init(ark_bb->pktchkr.v, 0, 1); + if (ark_bb->pc == NULL) + return -1; + ark_pktchkr_stop(ark_bb->pc); + ark_bb->pd = ark_pktdir_init(ark_bb->pktdir.v); + if (ark_bb->pd == NULL) + return -1; + + /* Verify HW */ + if (ark_udm_verify(ark_bb->udm.v)) + return -1; + if (ark_ddm_verify(ark_bb->ddm.v)) + return -1; + + /* MPU reset */ + mpu = ark_bb->mpurx.v; + num_q = ark_api_num_queues(mpu); + ark_bb->max_nb_queues = num_q; + + for (i = 0; i < num_q; i++) { + ark_mpu_reset(mpu); + mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET); + } + + ark_udm_configure(ark_bb->udm.v, + RTE_PKTMBUF_HEADROOM, + RTE_MBUF_DEFAULT_DATAROOM); + + mpu = ark_bb->mputx.v; + num_q = ark_api_num_queues(mpu); + for (i = 0; i < num_q; i++) { + ark_mpu_reset(mpu); + mpu = RTE_PTR_ADD(mpu, ARK_MPU_QOFFSET); + } + + ark_rqp_stats_reset(ark_bb->rqpacing); + + ARK_BBDEV_LOG(INFO, "packet director set to 0x%x", ark_bb->pkt_dir_v); + ark_pktdir_setup(ark_bb->pd, ark_bb->pkt_dir_v); + + if (ark_bb->pkt_gen_args[0]) { + ARK_BBDEV_LOG(INFO, "Setting up the packet generator"); + ark_pktgen_parse(ark_bb->pkt_gen_args); + ark_pktgen_reset(ark_bb->pg); + ark_pktgen_setup(ark_bb->pg); + ark_bb->start_pg = 1; + } + + return 0; +} + +static int +ark_bbdev_init(struct rte_bbdev *bbdev, struct rte_pci_driver *pci_drv) +{ + struct ark_bbdevice *ark_bb = bbdev->data->dev_private; + struct rte_pci_device *pci_dev = RTE_DEV_TO_PCI(bbdev->device); + bool rqpacing = false; + int p; + ark_bb->bbdev = bbdev; + + RTE_SET_USED(pci_drv); + + ark_bb->bar0 = (uint8_t *)pci_dev->mem_resource[0].addr; + ark_bb->a_bar = (uint8_t *)pci_dev->mem_resource[2].addr; + + ark_bb->sysctrl.v = (void *)&ark_bb->bar0[ARK_SYSCTRL_BASE]; + ark_bb->mpurx.v = (void *)&ark_bb->bar0[ARK_MPU_RX_BASE]; + ark_bb->udm.v = (void *)&ark_bb->bar0[ARK_UDM_BASE]; + ark_bb->mputx.v = (void *)&ark_bb->bar0[ARK_MPU_TX_BASE]; + ark_bb->ddm.v = (void *)&ark_bb->bar0[ARK_DDM_BASE]; + ark_bb->pktdir.v = (void *)&ark_bb->bar0[ARK_PKTDIR_BASE]; + ark_bb->pktgen.v = (void *)&ark_bb->bar0[ARK_PKTGEN_BASE]; + ark_bb->pktchkr.v = (void *)&ark_bb->bar0[ARK_PKTCHKR_BASE]; + + p = 0; + while (ark_device_caps[p].device_id != 0) { + if (pci_dev->id.device_id == ark_device_caps[p].device_id) { + rqpacing = ark_device_caps[p].caps.rqpacing; + break; + } + p++; + } + + if (rqpacing) + ark_bb->rqpacing = + (struct ark_rqpace_t *)(ark_bb->bar0 + ARK_RCPACING_BASE); + else + ark_bb->rqpacing = NULL; + + /* Check to see if there is an extension that we need to load */ + if (check_for_ext(ark_bb)) + return -1; + + ark_bb->started = 0; + + ARK_BBDEV_LOG(INFO, "Sys Ctrl Const = 0x%x HW Commit_ID: %08x", + ark_bb->sysctrl.t32[4], + rte_be_to_cpu_32(ark_bb->sysctrl.t32[0x20 / 4])); + ARK_BBDEV_LOG(INFO, "Arkville HW Commit_ID: %08x", + rte_be_to_cpu_32(ark_bb->sysctrl.t32[0x20 / 4])); + + /* If HW sanity test fails, return an error */ + if (ark_bb->sysctrl.t32[4] != 0xcafef00d) { + ARK_BBDEV_LOG(ERR, + "HW Sanity test has failed, expected constant" + " 0x%x, read 0x%x (%s)", + 0xcafef00d, + ark_bb->sysctrl.t32[4], __func__); + return -1; + } + + return ark_bb_config_device(ark_bb); +} + +static int +ark_bbdev_uninit(struct rte_bbdev *bbdev) +{ + struct ark_bbdevice *ark_bb = bbdev->data->dev_private; + + if (rte_eal_process_type() != RTE_PROC_PRIMARY) + return 0; + + ark_pktgen_uninit(ark_bb->pg); + ark_pktchkr_uninit(ark_bb->pc); + + return 0; +} + +static int +ark_bbdev_probe(struct rte_pci_driver *pci_drv, + struct rte_pci_device *pci_dev) +{ + struct rte_bbdev *bbdev = NULL; + char dev_name[RTE_BBDEV_NAME_MAX_LEN]; + struct ark_bbdevice *ark_bb; + + if (pci_dev == NULL) + return -EINVAL; + + rte_pci_device_name(&pci_dev->addr, dev_name, sizeof(dev_name)); + + /* Allocate memory to be used privately by drivers */ + bbdev = rte_bbdev_allocate(pci_dev->device.name); + if (bbdev == NULL) + return -ENODEV; + + /* allocate device private memory */ + bbdev->data->dev_private = rte_zmalloc_socket(dev_name, + sizeof(struct ark_bbdevice), + RTE_CACHE_LINE_SIZE, + pci_dev->device.numa_node); + + if (bbdev->data->dev_private == NULL) { + ARK_BBDEV_LOG(CRIT, + "Allocate of %zu bytes for device \"%s\" failed", + sizeof(struct ark_bbdevice), dev_name); + rte_bbdev_release(bbdev); + return -ENOMEM; + } + ark_bb = bbdev->data->dev_private; + /* Initialize ark_bb */ + ark_bb->pkt_dir_v = 0x00110110; + + /* Fill HW specific part of device structure */ + bbdev->device = &pci_dev->device; + bbdev->intr_handle = NULL; + bbdev->data->socket_id = pci_dev->device.numa_node; + bbdev->dev_ops = &ark_bbdev_pmd_ops; + if (pci_dev->device.devargs) + parse_ark_bbdev_params(pci_dev->device.devargs->args, ark_bb); + + + /* Device specific initialization */ + if (ark_bbdev_init(bbdev, pci_drv)) + return -EIO; + if (ark_bbdev_start(bbdev)) + return -EIO; + + /* Core operations LDPC encode amd decode */ + bbdev->enqueue_ldpc_enc_ops = ark_bb_enqueue_ldpc_enc_ops; + bbdev->dequeue_ldpc_enc_ops = ark_bb_dequeue_ldpc_enc_ops; + bbdev->enqueue_ldpc_dec_ops = ark_bb_enqueue_ldpc_dec_ops; + bbdev->dequeue_ldpc_dec_ops = ark_bb_dequeue_ldpc_dec_ops; + + ARK_BBDEV_LOG(DEBUG, "bbdev id = %u [%s]", + bbdev->data->dev_id, dev_name); + + return 0; +} + +/* Uninitialize device */ +static int +ark_bbdev_remove(struct rte_pci_device *pci_dev) +{ + struct rte_bbdev *bbdev; + int ret; + + if (pci_dev == NULL) + return -EINVAL; + + /* Find device */ + bbdev = rte_bbdev_get_named_dev(pci_dev->device.name); + if (bbdev == NULL) { + ARK_BBDEV_LOG(CRIT, + "Couldn't find HW dev \"%s\" to Uninitialize it", + pci_dev->device.name); + return -ENODEV; + } + + /* Arkville device close */ + ark_bbdev_uninit(bbdev); + rte_free(bbdev->data->dev_private); + + /* Close device */ + ret = rte_bbdev_close(bbdev->data->dev_id); + if (ret < 0) + ARK_BBDEV_LOG(ERR, + "Device %i failed to close during remove: %i", + bbdev->data->dev_id, ret); + + return rte_bbdev_release(bbdev); +} + +/* Operation for the PMD */ +static const struct rte_bbdev_ops ark_bbdev_pmd_ops = { + .info_get = ark_bbdev_info_get, + .start = ark_bbdev_start, + .stop = ark_bbdev_stop, + .queue_setup = ark_bb_q_setup, + .queue_release = ark_bb_q_release, + .queue_start = ark_bb_q_start, + .queue_stop = ark_bb_q_stop, +}; + +static struct rte_pci_driver ark_bbdev_pmd_drv = { + .probe = ark_bbdev_probe, + .remove = ark_bbdev_remove, + .id_table = pci_id_ark, + .drv_flags = RTE_PCI_DRV_NEED_MAPPING +}; + +RTE_PMD_REGISTER_PCI(DRIVER_NAME, ark_bbdev_pmd_drv); +RTE_PMD_REGISTER_PCI_TABLE(DRIVER_NAME, pci_id_ark); +RTE_PMD_REGISTER_PARAM_STRING(DRIVER_NAME, + ARK_BBDEV_PKTGEN_ARG "= " + ARK_BBDEV_PKTCHKR_ARG "= " + ARK_BBDEV_PKTDIR_ARG "=" + ); diff --git a/drivers/baseband/ark/ark_bbext.h b/drivers/baseband/ark/ark_bbext.h new file mode 100644 index 0000000000..2e9cc4ccf3 --- /dev/null +++ b/drivers/baseband/ark/ark_bbext.h @@ -0,0 +1,163 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright (c) 2015-2018 Atomic Rules LLC + */ + +#ifndef _ARK_BBEXT_H_ +#define _ARK_BBEXT_H_ + +#include +#include + +/* The following section lists function prototypes for Arkville's + * baseband dynamic PMD extension. User's who create an extension + * must include this file and define the necessary and desired + * functions. Only 1 function is required for an extension, + * rte_pmd_ark_bbdev_init(); all other functions prototypes in this + * section are optional. + * See documentation for compiling and use of extensions. + */ + +/** + * Extension prototype, required implementation if extensions are used. + * Called during device probe to initialize the user structure + * passed to other extension functions. This is called once for each + * port of the device. + * + * @param dev + * current device. + * @param a_bar + * access to PCIe device bar (application bar) and hence access to + * user's portion of FPGA. + * @return user_data + * which will be passed to other extension functions. + */ +void *rte_pmd_ark_bbdev_init(struct rte_bbdev *dev, void *a_bar); + +/** + * Extension prototype, optional implementation. + * Called during device uninit. + * + * @param dev + * current device. + * @param user_data + * user argument from dev_init() call. + */ +int rte_pmd_ark_bbdev_uninit(struct rte_bbdev *dev, void *user_data); + +/** + * Extension prototype, optional implementation. + * Called during rte_bbdev_start(). + * + * @param dev + * current device. + * @param user_data + * user argument from dev_init() call. + * @return (0) if successful. + */ +int rte_pmd_ark_bbdev_start(struct rte_bbdev *dev, void *user_data); + +/** + * Extension prototype, optional implementation. + * Called during rte_bbdev_stop(). + * + * @param dev + * current device. + * @param user_data + * user argument from dev_init() call. + * @return (0) if successful. + */ +int rte_pmd_ark_bbdev_stop(struct rte_bbdev *dev, void *user_data); + +/** + * Extension prototype, optional implementation. + * Called during rte_bbdev_dequeue_ldpc_dec_ops + * + * @param dev + * current device. + * @param user_data + * user argument from dev_init() call. + * @return (0) if successful. + */ +int rte_pmd_ark_bbdev_dequeue_ldpc_dec(struct rte_bbdev *dev, + struct rte_bbdev_dec_op *this_op, + uint32_t *usermeta, + void *user_data); + +/** + * Extension prototype, optional implementation. + * Called during rte_bbdev_dequeue_ldpc_enc_ops + * + * @param dev + * current device. + * @param user_data + * user argument from dev_init() call. + * @return (0) if successful. + */ +int rte_pmd_ark_bbdev_dequeue_ldpc_enc(struct rte_bbdev *dev, + struct rte_bbdev_enc_op *this_op, + uint32_t *usermeta, + void *user_data); + +/** + * Extension prototype, optional implementation. + * Called during rte_bbdev_enqueue_ldpc_dec_ops + * + * @param dev + * current device. + * @param user_data + * user argument from dev_init() call. + * @return (0) if successful. + */ +int rte_pmd_ark_bbdev_enqueue_ldpc_dec(struct rte_bbdev *dev, + struct rte_bbdev_dec_op *this_op, + uint32_t *usermeta, + uint8_t *meta_cnt, + void *user_data); + +/** + * Extension prototype, optional implementation. + * Called during rte_bbdev_enqueue_ldpc_enc_ops + * + * @param dev + * current device. + * @param user_data + * user argument from dev_init() call. + * @return (0) if successful. + */ +int rte_pmd_ark_bbdev_enqueue_ldpc_enc(struct rte_bbdev *dev, + struct rte_bbdev_enc_op *this_op, + uint32_t *usermeta, + uint8_t *meta_cnt, + void *user_data); + + +struct arkbb_user_ext { + void *(*dev_init)(struct rte_bbdev *dev, void *abar); + int (*dev_uninit)(struct rte_bbdev *dev, void *udata); + int (*dev_start)(struct rte_bbdev *dev, void *udata); + int (*dev_stop)(struct rte_bbdev *dev, void *udata); + int (*dequeue_ldpc_dec)(struct rte_bbdev *dev, + struct rte_bbdev_dec_op *op, + uint32_t *v, + void *udata); + int (*dequeue_ldpc_enc)(struct rte_bbdev *dev, + struct rte_bbdev_enc_op *op, + uint32_t *v, + void *udata); + int (*enqueue_ldpc_dec)(struct rte_bbdev *dev, + struct rte_bbdev_dec_op *op, + uint32_t *v, + uint8_t *v1, + void *udata); + int (*enqueue_ldpc_enc)(struct rte_bbdev *dev, + struct rte_bbdev_enc_op *op, + uint32_t *v, + uint8_t *v1, + void *udata); +}; + + + + + +#endif