From: Rafal Kozik Date: Thu, 7 Jun 2018 09:43:16 +0000 (+0200) Subject: net/ena: adjust error checking and cleaning X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=241da076b1f7;p=dpdk.git net/ena: adjust error checking and cleaning Adjust error checking and cleaning to Linux driver: * add checking if MTU is to small, * fix error messages (mismatched Rx and Tx), * return error received from base driver or proper error code instead of -1, * in case of error release occupied resources, * in case of Rx error trigger NIC reset. Signed-off-by: Rafal Kozik Acked-by: Michal Krawczyk --- diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c index 1425a04965..c051f23a38 100644 --- a/drivers/net/ena/ena_ethdev.c +++ b/drivers/net/ena/ena_ethdev.c @@ -436,9 +436,12 @@ static void ena_config_host_info(struct ena_com_dev *ena_dev) rc = ena_com_set_host_attributes(ena_dev); if (rc) { - RTE_LOG(ERR, PMD, "Cannot set host attributes\n"); - if (rc != -ENA_COM_UNSUPPORTED) - goto err; + if (rc == -ENA_COM_UNSUPPORTED) + RTE_LOG(WARNING, PMD, "Cannot set host attributes\n"); + else + RTE_LOG(ERR, PMD, "Cannot set host attributes\n"); + + goto err; } return; @@ -489,9 +492,12 @@ static void ena_config_debug_area(struct ena_adapter *adapter) rc = ena_com_set_host_attributes(&adapter->ena_dev); if (rc) { - RTE_LOG(WARNING, PMD, "Cannot set host attributes\n"); - if (rc != -ENA_COM_UNSUPPORTED) - goto err; + if (rc == -ENA_COM_UNSUPPORTED) + RTE_LOG(WARNING, PMD, "Cannot set host attributes\n"); + else + RTE_LOG(ERR, PMD, "Cannot set host attributes\n"); + + goto err; } return; @@ -534,7 +540,9 @@ ena_dev_reset(struct rte_eth_dev *dev) ena_com_set_admin_running_state(ena_dev, false); - ena_com_dev_reset(ena_dev, adapter->reset_reason); + rc = ena_com_dev_reset(ena_dev, adapter->reset_reason); + if (rc) + RTE_LOG(ERR, PMD, "Device reset failed\n"); for (i = 0; i < nb_queues; i++) mb_pool_rx[i] = adapter->rx_ring[i].mb_pool; @@ -579,7 +587,7 @@ static int ena_rss_reta_update(struct rte_eth_dev *dev, struct ena_adapter *adapter = (struct ena_adapter *)(dev->data->dev_private); struct ena_com_dev *ena_dev = &adapter->ena_dev; - int ret, i; + int rc, i; u16 entry_value; int conf_idx; int idx; @@ -591,8 +599,7 @@ static int ena_rss_reta_update(struct rte_eth_dev *dev, RTE_LOG(WARNING, PMD, "indirection table %d is bigger than supported (%d)\n", reta_size, ENA_RX_RSS_TABLE_SIZE); - ret = -EINVAL; - goto err; + return -EINVAL; } for (i = 0 ; i < reta_size ; i++) { @@ -604,29 +611,28 @@ static int ena_rss_reta_update(struct rte_eth_dev *dev, if (TEST_BIT(reta_conf[conf_idx].mask, idx)) { entry_value = ENA_IO_RXQ_IDX(reta_conf[conf_idx].reta[idx]); - ret = ena_com_indirect_table_fill_entry(ena_dev, - i, - entry_value); - if (unlikely(ret && (ret != ENA_COM_UNSUPPORTED))) { + + rc = ena_com_indirect_table_fill_entry(ena_dev, + i, + entry_value); + if (unlikely(rc && rc != ENA_COM_UNSUPPORTED)) { RTE_LOG(ERR, PMD, "Cannot fill indirect table\n"); - ret = -ENOTSUP; - goto err; + return rc; } } } - ret = ena_com_indirect_table_set(ena_dev); - if (unlikely(ret && (ret != ENA_COM_UNSUPPORTED))) { + rc = ena_com_indirect_table_set(ena_dev); + if (unlikely(rc && rc != ENA_COM_UNSUPPORTED)) { RTE_LOG(ERR, PMD, "Cannot flush the indirect table\n"); - ret = -ENOTSUP; - goto err; + return rc; } RTE_LOG(DEBUG, PMD, "%s(): RSS configured %d entries for port %d\n", __func__, reta_size, adapter->rte_dev->data->port_id); -err: - return ret; + + return 0; } /* Query redirection table. */ @@ -637,7 +643,7 @@ static int ena_rss_reta_query(struct rte_eth_dev *dev, struct ena_adapter *adapter = (struct ena_adapter *)(dev->data->dev_private); struct ena_com_dev *ena_dev = &adapter->ena_dev; - int ret; + int rc; int i; u32 indirect_table[ENA_RX_RSS_TABLE_SIZE] = {0}; int reta_conf_idx; @@ -647,11 +653,10 @@ static int ena_rss_reta_query(struct rte_eth_dev *dev, (reta_size > RTE_RETA_GROUP_SIZE && ((reta_conf + 1) == NULL))) return -EINVAL; - ret = ena_com_indirect_table_get(ena_dev, indirect_table); - if (unlikely(ret && (ret != ENA_COM_UNSUPPORTED))) { + rc = ena_com_indirect_table_get(ena_dev, indirect_table); + if (unlikely(rc && rc != ENA_COM_UNSUPPORTED)) { RTE_LOG(ERR, PMD, "cannot get indirect table\n"); - ret = -ENOTSUP; - goto err; + return -ENOTSUP; } for (i = 0 ; i < reta_size ; i++) { @@ -661,8 +666,8 @@ static int ena_rss_reta_query(struct rte_eth_dev *dev, reta_conf[reta_conf_idx].reta[reta_idx] = ENA_IO_RXQ_IDX_REV(indirect_table[i]); } -err: - return ret; + + return 0; } static int ena_rss_init_default(struct ena_adapter *adapter) @@ -884,7 +889,7 @@ static int ena_queue_restart_all(struct rte_eth_dev *dev, PMD_INIT_LOG(ERR, "failed to restart queue %d type(%d)", i, ring_type); - return -1; + return rc; } } } @@ -908,9 +913,11 @@ static int ena_check_valid_conf(struct ena_adapter *adapter) { uint32_t max_frame_len = ena_get_mtu_conf(adapter); - if (max_frame_len > adapter->max_mtu) { - PMD_INIT_LOG(ERR, "Unsupported MTU of %d", max_frame_len); - return -1; + if (max_frame_len > adapter->max_mtu || max_frame_len < ENA_MIN_MTU) { + PMD_INIT_LOG(ERR, "Unsupported MTU of %d. " + "max mtu: %d, min mtu: %d\n", + max_frame_len, adapter->max_mtu, ENA_MIN_MTU); + return ENA_COM_UNSUPPORTED; } return 0; @@ -1008,12 +1015,12 @@ static int ena_mtu_set(struct rte_eth_dev *dev, uint16_t mtu) ena_dev = &adapter->ena_dev; ena_assert_msg(ena_dev != NULL, "Uninitialized device"); - if (mtu > ena_get_mtu_conf(adapter)) { + if (mtu > ena_get_mtu_conf(adapter) || mtu < ENA_MIN_MTU) { RTE_LOG(ERR, PMD, - "Given MTU (%d) exceeds maximum MTU supported (%d)\n", - mtu, ena_get_mtu_conf(adapter)); - rc = -EINVAL; - goto err; + "Invalid MTU setting. new_mtu: %d " + "max mtu: %d min mtu: %d\n", + mtu, ena_get_mtu_conf(adapter), ENA_MIN_MTU); + return -EINVAL; } rc = ena_com_set_dev_mtu(ena_dev, mtu); @@ -1022,7 +1029,6 @@ static int ena_mtu_set(struct rte_eth_dev *dev, uint16_t mtu) else RTE_LOG(NOTICE, PMD, "Set MTU: %d\n", mtu); -err: return rc; } @@ -1093,7 +1099,7 @@ static int ena_queue_restart(struct ena_ring *ring) rc = ena_populate_rx_queue(ring, bufs_num); if (rc != bufs_num) { PMD_INIT_LOG(ERR, "Failed to populate rx ring !"); - return (-1); + return ENA_COM_FAULT; } return 0; @@ -1123,12 +1129,12 @@ static int ena_tx_queue_setup(struct rte_eth_dev *dev, RTE_LOG(CRIT, PMD, "API violation. Queue %d is already configured\n", queue_idx); - return -1; + return ENA_COM_FAULT; } if (!rte_is_power_of_2(nb_desc)) { RTE_LOG(ERR, PMD, - "Unsupported size of RX queue: %d is not a power of 2.", + "Unsupported size of TX queue: %d is not a power of 2.", nb_desc); return -EINVAL; } @@ -1154,6 +1160,7 @@ static int ena_tx_queue_setup(struct rte_eth_dev *dev, RTE_LOG(ERR, PMD, "failed to create io TX queue #%d (qid:%d) rc: %d\n", queue_idx, ena_qid, rc); + return rc; } txq->ena_com_io_cq = &ena_dev->io_cq_queues[ena_qid]; txq->ena_com_io_sq = &ena_dev->io_sq_queues[ena_qid]; @@ -1165,8 +1172,7 @@ static int ena_tx_queue_setup(struct rte_eth_dev *dev, RTE_LOG(ERR, PMD, "Failed to get TX queue handlers. TX queue num %d rc: %d\n", queue_idx, rc); - ena_com_destroy_io_queue(ena_dev, ena_qid); - goto err; + goto err_destroy_io_queue; } txq->port_id = dev->data->port_id; @@ -1180,7 +1186,8 @@ static int ena_tx_queue_setup(struct rte_eth_dev *dev, RTE_CACHE_LINE_SIZE); if (!txq->tx_buffer_info) { RTE_LOG(ERR, PMD, "failed to alloc mem for tx buffer info\n"); - return -ENOMEM; + rc = -ENOMEM; + goto err_destroy_io_queue; } txq->empty_tx_reqs = rte_zmalloc("txq->empty_tx_reqs", @@ -1188,9 +1195,10 @@ static int ena_tx_queue_setup(struct rte_eth_dev *dev, RTE_CACHE_LINE_SIZE); if (!txq->empty_tx_reqs) { RTE_LOG(ERR, PMD, "failed to alloc mem for tx reqs\n"); - rte_free(txq->tx_buffer_info); - return -ENOMEM; + rc = -ENOMEM; + goto err_free; } + for (i = 0; i < txq->ring_size; i++) txq->empty_tx_reqs[i] = i; @@ -1202,7 +1210,14 @@ static int ena_tx_queue_setup(struct rte_eth_dev *dev, /* Store pointer to this queue in upper layer */ txq->configured = 1; dev->data->tx_queues[queue_idx] = txq; -err: + + return 0; + +err_free: + rte_free(txq->tx_buffer_info); + +err_destroy_io_queue: + ena_com_destroy_io_queue(ena_dev, ena_qid); return rc; } @@ -1229,12 +1244,12 @@ static int ena_rx_queue_setup(struct rte_eth_dev *dev, RTE_LOG(CRIT, PMD, "API violation. Queue %d is already configured\n", queue_idx); - return -1; + return ENA_COM_FAULT; } if (!rte_is_power_of_2(nb_desc)) { RTE_LOG(ERR, PMD, - "Unsupported size of TX queue: %d is not a power of 2.", + "Unsupported size of RX queue: %d is not a power of 2.", nb_desc); return -EINVAL; } @@ -1256,9 +1271,11 @@ static int ena_rx_queue_setup(struct rte_eth_dev *dev, ctx.numa_node = ena_cpu_to_node(queue_idx); rc = ena_com_create_io_queue(ena_dev, &ctx); - if (rc) + if (rc) { RTE_LOG(ERR, PMD, "failed to create io RX queue #%d rc: %d\n", queue_idx, rc); + return rc; + } rxq->ena_com_io_cq = &ena_dev->io_cq_queues[ena_qid]; rxq->ena_com_io_sq = &ena_dev->io_sq_queues[ena_qid]; @@ -1271,6 +1288,7 @@ static int ena_rx_queue_setup(struct rte_eth_dev *dev, "Failed to get RX queue handlers. RX queue num %d rc: %d\n", queue_idx, rc); ena_com_destroy_io_queue(ena_dev, ena_qid); + return rc; } rxq->port_id = dev->data->port_id; @@ -1284,6 +1302,7 @@ static int ena_rx_queue_setup(struct rte_eth_dev *dev, RTE_CACHE_LINE_SIZE); if (!rxq->rx_buffer_info) { RTE_LOG(ERR, PMD, "failed to alloc mem for rx buffer info\n"); + ena_com_destroy_io_queue(ena_dev, ena_qid); return -ENOMEM; } @@ -1294,6 +1313,7 @@ static int ena_rx_queue_setup(struct rte_eth_dev *dev, RTE_LOG(ERR, PMD, "failed to alloc mem for empty rx reqs\n"); rte_free(rxq->rx_buffer_info); rxq->rx_buffer_info = NULL; + ena_com_destroy_io_queue(ena_dev, ena_qid); return -ENOMEM; } @@ -1344,6 +1364,10 @@ static int ena_populate_rx_queue(struct ena_ring *rxq, unsigned int count) rte_prefetch0(mbufs[((next_to_use + 4) & ring_mask)]); req_id = rxq->empty_rx_reqs[next_to_use_masked]; + rc = validate_rx_req_id(rxq, req_id); + if (unlikely(rc < 0)) + break; + /* prepare physical address for DMA transaction */ ebuf.paddr = mbuf->buf_iova + RTE_PKTMBUF_HEADROOM; ebuf.len = mbuf->buf_len - RTE_PKTMBUF_HEADROOM; @@ -1359,9 +1383,17 @@ static int ena_populate_rx_queue(struct ena_ring *rxq, unsigned int count) next_to_use++; } + if (unlikely(i < count)) + RTE_LOG(WARNING, PMD, "refilled rx qid %d with only %d " + "buffers (from %d)\n", rxq->id, i, count); + /* When we submitted free recources to device... */ if (likely(i > 0)) { - /* ...let HW know that it can fill buffers with data */ + /* ...let HW know that it can fill buffers with data + * + * Add memory barrier to make sure the desc were written before + * issue a doorbell + */ rte_wmb(); ena_com_write_sq_doorbell(rxq->ena_com_io_sq); @@ -1589,7 +1621,7 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev) rc = ena_device_init(ena_dev, &get_feat_ctx, &wd_state); if (rc) { PMD_INIT_LOG(CRIT, "Failed to init ENA device"); - return -1; + goto err; } adapter->wd_state = wd_state; @@ -1598,8 +1630,10 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev) &get_feat_ctx); queue_size = ena_calc_queue_size(ena_dev, &tx_sgl_size, &get_feat_ctx); - if ((queue_size <= 0) || (adapter->num_queues <= 0)) - return -EFAULT; + if (queue_size <= 0 || adapter->num_queues <= 0) { + rc = -EFAULT; + goto err_device_destroy; + } adapter->tx_ring_size = queue_size; adapter->rx_ring_size = queue_size; @@ -1628,7 +1662,8 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev) RTE_CACHE_LINE_SIZE); if (!adapter->drv_stats) { RTE_LOG(ERR, PMD, "failed to alloc mem for adapter stats\n"); - return -ENOMEM; + rc = -ENOMEM; + goto err_delete_debug_area; } rte_intr_callback_register(intr_handle, @@ -1646,6 +1681,16 @@ static int eth_ena_dev_init(struct rte_eth_dev *eth_dev) adapter->state = ENA_ADAPTER_STATE_INIT; return 0; + +err_delete_debug_area: + ena_com_delete_debug_area(ena_dev); + +err_device_destroy: + ena_com_delete_host_info(ena_dev); + ena_com_admin_destroy(ena_dev); + +err: + return rc; } static int eth_ena_dev_uninit(struct rte_eth_dev *eth_dev) @@ -1839,6 +1884,7 @@ static uint16_t eth_ena_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, &ena_rx_ctx); if (unlikely(rc)) { RTE_LOG(ERR, PMD, "ena_com_rx_pkt error %d\n", rc); + rx_ring->adapter->trigger_reset = true; return 0; } diff --git a/drivers/net/ena/ena_ethdev.h b/drivers/net/ena/ena_ethdev.h index 73c110ab9f..2dc8129e0e 100644 --- a/drivers/net/ena/ena_ethdev.h +++ b/drivers/net/ena/ena_ethdev.h @@ -50,6 +50,8 @@ #define ENA_NAME_MAX_LEN 20 #define ENA_PKT_MAX_BUFS 17 +#define ENA_MIN_MTU 128 + #define ENA_MMIO_DISABLE_REG_READ BIT(0) #define ENA_WD_TIMEOUT_SEC 3