diff options
Diffstat (limited to 'drivers/net/dpaa2/dpaa2_rxtx.c')
| -rw-r--r-- | drivers/net/dpaa2/dpaa2_rxtx.c | 342 |
1 files changed, 290 insertions, 52 deletions
diff --git a/drivers/net/dpaa2/dpaa2_rxtx.c b/drivers/net/dpaa2/dpaa2_rxtx.c index c5d49cbe..3c057a39 100644 --- a/drivers/net/dpaa2/dpaa2_rxtx.c +++ b/drivers/net/dpaa2/dpaa2_rxtx.c @@ -2,7 +2,7 @@ * BSD LICENSE * * Copyright (c) 2016 Freescale Semiconductor, Inc. All rights reserved. - * Copyright (c) 2016 NXP. All rights reserved. + * Copyright 2016 NXP. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -40,7 +40,6 @@ #include <rte_memcpy.h> #include <rte_string_fns.h> #include <rte_dev.h> -#include <rte_ethdev.h> #include <fslmc_logs.h> #include <fslmc_vfio.h> @@ -133,6 +132,66 @@ dpaa2_dev_rx_offload(uint64_t hw_annot_addr, struct rte_mbuf *mbuf) } static inline struct rte_mbuf *__attribute__((hot)) +eth_sg_fd_to_mbuf(const struct qbman_fd *fd) +{ + struct qbman_sge *sgt, *sge; + dma_addr_t sg_addr; + int i = 0; + uint64_t fd_addr; + struct rte_mbuf *first_seg, *next_seg, *cur_seg, *temp; + + fd_addr = (uint64_t)DPAA2_IOVA_TO_VADDR(DPAA2_GET_FD_ADDR(fd)); + + /* Get Scatter gather table address */ + sgt = (struct qbman_sge *)(fd_addr + DPAA2_GET_FD_OFFSET(fd)); + + sge = &sgt[i++]; + sg_addr = (uint64_t)DPAA2_IOVA_TO_VADDR(DPAA2_GET_FLE_ADDR(sge)); + + /* First Scatter gather entry */ + first_seg = DPAA2_INLINE_MBUF_FROM_BUF(sg_addr, + rte_dpaa2_bpid_info[DPAA2_GET_FD_BPID(fd)].meta_data_size); + /* Prepare all the metadata for first segment */ + first_seg->buf_addr = (uint8_t *)sg_addr; + first_seg->ol_flags = 0; + first_seg->data_off = DPAA2_GET_FLE_OFFSET(sge); + first_seg->data_len = sge->length & 0x1FFFF; + first_seg->pkt_len = DPAA2_GET_FD_LEN(fd); + first_seg->nb_segs = 1; + first_seg->next = NULL; + + first_seg->packet_type = dpaa2_dev_rx_parse( + (uint64_t)DPAA2_IOVA_TO_VADDR(DPAA2_GET_FD_ADDR(fd)) + + DPAA2_FD_PTA_SIZE); + dpaa2_dev_rx_offload((uint64_t)DPAA2_IOVA_TO_VADDR( + DPAA2_GET_FD_ADDR(fd)) + + DPAA2_FD_PTA_SIZE, first_seg); + rte_mbuf_refcnt_set(first_seg, 1); + cur_seg = first_seg; + while (!DPAA2_SG_IS_FINAL(sge)) { + sge = &sgt[i++]; + sg_addr = (uint64_t)DPAA2_IOVA_TO_VADDR( + DPAA2_GET_FLE_ADDR(sge)); + next_seg = DPAA2_INLINE_MBUF_FROM_BUF(sg_addr, + rte_dpaa2_bpid_info[DPAA2_GET_FLE_BPID(sge)].meta_data_size); + next_seg->buf_addr = (uint8_t *)sg_addr; + next_seg->data_off = DPAA2_GET_FLE_OFFSET(sge); + next_seg->data_len = sge->length & 0x1FFFF; + first_seg->nb_segs += 1; + rte_mbuf_refcnt_set(next_seg, 1); + cur_seg->next = next_seg; + next_seg->next = NULL; + cur_seg = next_seg; + } + temp = DPAA2_INLINE_MBUF_FROM_BUF(fd_addr, + rte_dpaa2_bpid_info[DPAA2_GET_FD_BPID(fd)].meta_data_size); + rte_mbuf_refcnt_set(temp, 1); + rte_pktmbuf_free_seg(temp); + + return (void *)first_seg; +} + +static inline struct rte_mbuf *__attribute__((hot)) eth_fd_to_mbuf(const struct qbman_fd *fd) { struct rte_mbuf *mbuf = DPAA2_INLINE_MBUF_FROM_BUF( @@ -171,6 +230,80 @@ eth_fd_to_mbuf(const struct qbman_fd *fd) return mbuf; } +static int __attribute__ ((noinline)) __attribute__((hot)) +eth_mbuf_to_sg_fd(struct rte_mbuf *mbuf, + struct qbman_fd *fd, uint16_t bpid) +{ + struct rte_mbuf *cur_seg = mbuf, *prev_seg, *mi, *temp; + struct qbman_sge *sgt, *sge = NULL; + int i; + + /* First Prepare FD to be transmited*/ + /* Resetting the buffer pool id and offset field*/ + fd->simple.bpid_offset = 0; + + temp = rte_pktmbuf_alloc(mbuf->pool); + if (temp == NULL) { + PMD_TX_LOG(ERR, "No memory to allocate S/G table"); + return -ENOMEM; + } + + DPAA2_SET_FD_ADDR(fd, DPAA2_MBUF_VADDR_TO_IOVA(temp)); + DPAA2_SET_FD_LEN(fd, mbuf->pkt_len); + DPAA2_SET_FD_OFFSET(fd, temp->data_off); + DPAA2_SET_FD_BPID(fd, bpid); + DPAA2_SET_FD_ASAL(fd, DPAA2_ASAL_VAL); + DPAA2_FD_SET_FORMAT(fd, qbman_fd_sg); + /*Set Scatter gather table and Scatter gather entries*/ + sgt = (struct qbman_sge *)( + (uint64_t)DPAA2_IOVA_TO_VADDR(DPAA2_GET_FD_ADDR(fd)) + + DPAA2_GET_FD_OFFSET(fd)); + + for (i = 0; i < mbuf->nb_segs; i++) { + sge = &sgt[i]; + /*Resetting the buffer pool id and offset field*/ + sge->fin_bpid_offset = 0; + DPAA2_SET_FLE_ADDR(sge, DPAA2_MBUF_VADDR_TO_IOVA(cur_seg)); + DPAA2_SET_FLE_OFFSET(sge, cur_seg->data_off); + sge->length = cur_seg->data_len; + if (RTE_MBUF_DIRECT(cur_seg)) { + if (rte_mbuf_refcnt_read(cur_seg) > 1) { + /* If refcnt > 1, invalid bpid is set to ensure + * buffer is not freed by HW + */ + DPAA2_SET_FLE_IVP(sge); + rte_mbuf_refcnt_update(cur_seg, -1); + } else + DPAA2_SET_FLE_BPID(sge, + mempool_to_bpid(cur_seg->pool)); + cur_seg = cur_seg->next; + } else { + /* Get owner MBUF from indirect buffer */ + mi = rte_mbuf_from_indirect(cur_seg); + if (rte_mbuf_refcnt_read(mi) > 1) { + /* If refcnt > 1, invalid bpid is set to ensure + * owner buffer is not freed by HW + */ + DPAA2_SET_FLE_IVP(sge); + } else { + DPAA2_SET_FLE_BPID(sge, + mempool_to_bpid(mi->pool)); + rte_mbuf_refcnt_update(mi, 1); + } + prev_seg = cur_seg; + cur_seg = cur_seg->next; + prev_seg->next = NULL; + rte_pktmbuf_free(prev_seg); + } + } + DPAA2_SG_SET_FINAL(sge, true); + return 0; +} + +static void +eth_mbuf_to_fd(struct rte_mbuf *mbuf, + struct qbman_fd *fd, uint16_t bpid) __attribute__((unused)); + static void __attribute__ ((noinline)) __attribute__((hot)) eth_mbuf_to_fd(struct rte_mbuf *mbuf, struct qbman_fd *fd, uint16_t bpid) @@ -190,8 +323,22 @@ eth_mbuf_to_fd(struct rte_mbuf *mbuf, DPAA2_GET_FD_OFFSET(fd), DPAA2_GET_FD_ADDR(fd), rte_dpaa2_bpid_info[DPAA2_GET_FD_BPID(fd)].meta_data_size, DPAA2_GET_FD_BPID(fd), DPAA2_GET_FD_LEN(fd)); -} + if (RTE_MBUF_DIRECT(mbuf)) { + if (rte_mbuf_refcnt_read(mbuf) > 1) { + DPAA2_SET_FD_IVP(fd); + rte_mbuf_refcnt_update(mbuf, -1); + } + } else { + struct rte_mbuf *mi; + mi = rte_mbuf_from_indirect(mbuf); + if (rte_mbuf_refcnt_read(mi) > 1) + DPAA2_SET_FD_IVP(fd); + else + rte_mbuf_refcnt_update(mi, 1); + rte_pktmbuf_free(mbuf); + } +} static inline int __attribute__((hot)) eth_copy_mbuf_to_fd(struct rte_mbuf *mbuf, @@ -242,17 +389,18 @@ eth_copy_mbuf_to_fd(struct rte_mbuf *mbuf, } uint16_t -dpaa2_dev_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts) +dpaa2_dev_prefetch_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts) { - /* Function is responsible to receive frames for a given device and VQ*/ + /* Function receive frames for a given device and VQ*/ struct dpaa2_queue *dpaa2_q = (struct dpaa2_queue *)queue; struct qbman_result *dq_storage; uint32_t fqid = dpaa2_q->fqid; int ret, num_rx = 0; uint8_t is_last = 0, status; struct qbman_swp *swp; - const struct qbman_fd *fd; + const struct qbman_fd *fd[DPAA2_DQRR_RING_SIZE]; struct qbman_pull_desc pulldesc; + struct queue_storage_info_t *q_storage = dpaa2_q->q_storage; struct rte_eth_dev *dev = dpaa2_q->dev; if (unlikely(!DPAA2_PER_LCORE_DPIO)) { @@ -263,44 +411,51 @@ dpaa2_dev_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts) } } swp = DPAA2_PER_LCORE_PORTAL; - dq_storage = dpaa2_q->q_storage->dq_storage[0]; - - qbman_pull_desc_clear(&pulldesc); - qbman_pull_desc_set_numframes(&pulldesc, - (nb_pkts > DPAA2_DQRR_RING_SIZE) ? - DPAA2_DQRR_RING_SIZE : nb_pkts); - qbman_pull_desc_set_fq(&pulldesc, fqid); - /* todo optimization - we can have dq_storage_phys available*/ - qbman_pull_desc_set_storage(&pulldesc, dq_storage, + if (!q_storage->active_dqs) { + q_storage->toggle = 0; + dq_storage = q_storage->dq_storage[q_storage->toggle]; + qbman_pull_desc_clear(&pulldesc); + qbman_pull_desc_set_numframes(&pulldesc, + (nb_pkts > DPAA2_DQRR_RING_SIZE) ? + DPAA2_DQRR_RING_SIZE : nb_pkts); + qbman_pull_desc_set_fq(&pulldesc, fqid); + qbman_pull_desc_set_storage(&pulldesc, dq_storage, (dma_addr_t)(DPAA2_VADDR_TO_IOVA(dq_storage)), 1); - - /*Issue a volatile dequeue command. */ - while (1) { - if (qbman_swp_pull(swp, &pulldesc)) { - PMD_RX_LOG(ERR, "VDQ command is not issued." - "QBMAN is busy\n"); - /* Portal was busy, try again */ - continue; + if (check_swp_active_dqs(DPAA2_PER_LCORE_DPIO->index)) { + while (!qbman_check_command_complete(swp, + get_swp_active_dqs(DPAA2_PER_LCORE_DPIO->index))) + ; + clear_swp_active_dqs(DPAA2_PER_LCORE_DPIO->index); } - break; - }; - - /* Receive the packets till Last Dequeue entry is found with - * respect to the above issues PULL command. + while (1) { + if (qbman_swp_pull(swp, &pulldesc)) { + PMD_RX_LOG(WARNING, "VDQ command is not issued." + "QBMAN is busy\n"); + /* Portal was busy, try again */ + continue; + } + break; + } + q_storage->active_dqs = dq_storage; + q_storage->active_dpio_id = DPAA2_PER_LCORE_DPIO->index; + set_swp_active_dqs(DPAA2_PER_LCORE_DPIO->index, dq_storage); + } + dq_storage = q_storage->active_dqs; + /* Check if the previous issued command is completed. + * Also seems like the SWP is shared between the Ethernet Driver + * and the SEC driver. */ + while (!qbman_check_command_complete(swp, dq_storage)) + ; + if (dq_storage == get_swp_active_dqs(q_storage->active_dpio_id)) + clear_swp_active_dqs(q_storage->active_dpio_id); while (!is_last) { - struct rte_mbuf *mbuf; - /*Check if the previous issued command is completed. - * Also seems like the SWP is shared between the - * Ethernet Driver and the SEC driver. - */ - while (!qbman_check_command_complete(swp, dq_storage)) - ; /* Loop until the dq_storage is updated with * new token by QBMAN */ while (!qbman_result_has_new_result(swp, dq_storage)) ; + rte_prefetch0((void *)((uint64_t)(dq_storage + 1))); /* Check whether Last Pull command is Expired and * setting Condition for Loop termination */ @@ -311,27 +466,54 @@ dpaa2_dev_rx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts) if (unlikely((status & QBMAN_DQ_STAT_VALIDFRAME) == 0)) continue; } + fd[num_rx] = qbman_result_DQ_fd(dq_storage); - fd = qbman_result_DQ_fd(dq_storage); - mbuf = (struct rte_mbuf *)DPAA2_IOVA_TO_VADDR( - DPAA2_GET_FD_ADDR(fd) - - rte_dpaa2_bpid_info[DPAA2_GET_FD_BPID(fd)].meta_data_size); - /* Prefeth mbuf */ - rte_prefetch0(mbuf); /* Prefetch Annotation address for the parse results */ - rte_prefetch0((void *)((uint64_t)DPAA2_GET_FD_ADDR(fd) - + DPAA2_FD_PTA_SIZE + 16)); + rte_prefetch0((void *)((uint64_t)DPAA2_GET_FD_ADDR(fd[num_rx]) + + DPAA2_FD_PTA_SIZE + 16)); - bufs[num_rx] = eth_fd_to_mbuf(fd); + if (unlikely(DPAA2_FD_GET_FORMAT(fd[num_rx]) == qbman_fd_sg)) + bufs[num_rx] = eth_sg_fd_to_mbuf(fd[num_rx]); + else + bufs[num_rx] = eth_fd_to_mbuf(fd[num_rx]); bufs[num_rx]->port = dev->data->port_id; - num_rx++; + if (dev->data->dev_conf.rxmode.hw_vlan_strip) + rte_vlan_strip(bufs[num_rx]); + dq_storage++; - } /* End of Packet Rx loop */ + num_rx++; + } + + if (check_swp_active_dqs(DPAA2_PER_LCORE_DPIO->index)) { + while (!qbman_check_command_complete(swp, + get_swp_active_dqs(DPAA2_PER_LCORE_DPIO->index))) + ; + clear_swp_active_dqs(DPAA2_PER_LCORE_DPIO->index); + } + q_storage->toggle ^= 1; + dq_storage = q_storage->dq_storage[q_storage->toggle]; + qbman_pull_desc_clear(&pulldesc); + qbman_pull_desc_set_numframes(&pulldesc, DPAA2_DQRR_RING_SIZE); + qbman_pull_desc_set_fq(&pulldesc, fqid); + qbman_pull_desc_set_storage(&pulldesc, dq_storage, + (dma_addr_t)(DPAA2_VADDR_TO_IOVA(dq_storage)), 1); + /* Issue a volatile dequeue command. */ + while (1) { + if (qbman_swp_pull(swp, &pulldesc)) { + PMD_RX_LOG(WARNING, "VDQ command is not issued." + "QBMAN is busy\n"); + continue; + } + break; + } + q_storage->active_dqs = dq_storage; + q_storage->active_dpio_id = DPAA2_PER_LCORE_DPIO->index; + set_swp_active_dqs(DPAA2_PER_LCORE_DPIO->index, dq_storage); dpaa2_q->rx_pkts += num_rx; - /*Return the total number of packets received to DPAA2 app*/ + /* Return the total number of packets received to DPAA2 app */ return num_rx; } @@ -342,9 +524,10 @@ uint16_t dpaa2_dev_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts) { /* Function to transmit the frames to given device and VQ*/ - uint32_t loop; + uint32_t loop, retry_count; int32_t ret; struct qbman_fd fd_arr[MAX_TX_RING_SLOTS]; + struct rte_mbuf *mi; uint32_t frames_to_send; struct rte_mempool *mp; struct qbman_eq_desc eqdesc; @@ -375,14 +558,32 @@ dpaa2_dev_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts) /*Clear the unused FD fields before sending*/ while (nb_pkts) { + /*Check if the queue is congested*/ + retry_count = 0; + if (qbman_result_SCN_state_in_mem(dpaa2_q->cscn)) { + retry_count++; + /* Retry for some time before giving up */ + if (retry_count > CONG_RETRY_COUNT) + goto skip_tx; + } + frames_to_send = (nb_pkts >> 3) ? MAX_TX_RING_SLOTS : nb_pkts; for (loop = 0; loop < frames_to_send; loop++) { fd_arr[loop].simple.frc = 0; DPAA2_RESET_FD_CTRL((&fd_arr[loop])); DPAA2_SET_FD_FLC((&fd_arr[loop]), NULL); - mp = (*bufs)->pool; + if (RTE_MBUF_DIRECT(*bufs)) { + mp = (*bufs)->pool; + } else { + mi = rte_mbuf_from_indirect(*bufs); + mp = mi->pool; + } /* Not a hw_pkt pool allocated frame */ + if (!mp) { + PMD_TX_LOG(ERR, "err: no bpool attached"); + goto skip_tx; + } if (mp->ops_index != priv->bp_list->dpaa2_ops_index) { PMD_TX_LOG(ERR, "non hw offload bufffer "); /* alloc should be from the default buffer pool @@ -391,11 +592,16 @@ dpaa2_dev_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts) if (priv->bp_list) { bpid = priv->bp_list->buf_pool.bpid; } else { - PMD_TX_LOG(ERR, "errr: why no bpool" - " attached"); + PMD_TX_LOG(ERR, + "err: no bpool attached"); num_tx = 0; goto skip_tx; } + if (unlikely((*bufs)->nb_segs > 1)) { + PMD_TX_LOG(ERR, "S/G support not added" + " for non hw offload buffer"); + goto skip_tx; + } if (eth_copy_mbuf_to_fd(*bufs, &fd_arr[loop], bpid)) { bufs++; @@ -403,7 +609,14 @@ dpaa2_dev_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts) } } else { bpid = mempool_to_bpid(mp); - eth_mbuf_to_fd(*bufs, &fd_arr[loop], bpid); + if (unlikely((*bufs)->nb_segs > 1)) { + if (eth_mbuf_to_sg_fd(*bufs, + &fd_arr[loop], bpid)) + goto skip_tx; + } else { + eth_mbuf_to_fd(*bufs, + &fd_arr[loop], bpid); + } } bufs++; } @@ -420,3 +633,28 @@ dpaa2_dev_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts) skip_tx: return num_tx; } + +/** + * Dummy DPDK callback for TX. + * + * This function is used to temporarily replace the real callback during + * unsafe control operations on the queue, or in case of error. + * + * @param dpdk_txq + * Generic pointer to TX queue structure. + * @param[in] pkts + * Packets to transmit. + * @param pkts_n + * Number of packets in array. + * + * @return + * Number of packets successfully transmitted (<= pkts_n). + */ +uint16_t +dummy_dev_tx(void *queue, struct rte_mbuf **bufs, uint16_t nb_pkts) +{ + (void)queue; + (void)bufs; + (void)nb_pkts; + return 0; +} |