From 9a7695b227beed57f279fc204dd022394ad1bb9c Mon Sep 17 00:00:00 2001 From: Ting Xu Date: Thu, 22 Oct 2020 14:49:00 +0800 Subject: [PATCH] net/iavf: enable multiple queues configuration for large VF Since the adminq buffer size has a 4K limitation, the current virtchnl command VIRTCHNL_OP_CONFIG_VSI_QUEUES cannot send the message only once to configure up to 256 queues. In this patch, we send the messages multiple times to make sure that the buffer size is less than 4K each time. Signed-off-by: Ting Xu Acked-by: Beilei Xing --- drivers/net/iavf/iavf.h | 4 +++- drivers/net/iavf/iavf_ethdev.c | 18 +++++++++++++++++- drivers/net/iavf/iavf_vchnl.c | 11 ++++++----- 3 files changed, 26 insertions(+), 7 deletions(-) diff --git a/drivers/net/iavf/iavf.h b/drivers/net/iavf/iavf.h index 49ccfeece3..1cdac1b103 100644 --- a/drivers/net/iavf/iavf.h +++ b/drivers/net/iavf/iavf.h @@ -21,6 +21,7 @@ #define IAVF_MAX_NUM_QUEUES_DFLT 16 #define IAVF_MAX_NUM_QUEUES_LV 256 +#define IAVF_CFG_Q_NUM_PER_BUF 32 #define IAVF_NUM_MACADDR_MAX 64 @@ -269,7 +270,8 @@ int iavf_enable_queues(struct iavf_adapter *adapter); int iavf_disable_queues(struct iavf_adapter *adapter); int iavf_configure_rss_lut(struct iavf_adapter *adapter); int iavf_configure_rss_key(struct iavf_adapter *adapter); -int iavf_configure_queues(struct iavf_adapter *adapter); +int iavf_configure_queues(struct iavf_adapter *adapter, + uint16_t num_queue_pairs, uint16_t index); int iavf_get_supported_rxdid(struct iavf_adapter *adapter); int iavf_config_irq_map(struct iavf_adapter *adapter); void iavf_add_del_all_mac_addr(struct iavf_adapter *adapter, bool add); diff --git a/drivers/net/iavf/iavf_ethdev.c b/drivers/net/iavf/iavf_ethdev.c index 87082d1cc6..db94495904 100644 --- a/drivers/net/iavf/iavf_ethdev.c +++ b/drivers/net/iavf/iavf_ethdev.c @@ -564,6 +564,8 @@ iavf_dev_start(struct rte_eth_dev *dev) IAVF_DEV_PRIVATE_TO_ADAPTER(dev->data->dev_private); struct iavf_info *vf = IAVF_DEV_PRIVATE_TO_VF(dev->data->dev_private); struct rte_intr_handle *intr_handle = dev->intr_handle; + uint16_t num_queue_pairs; + uint16_t index = 0; PMD_INIT_FUNC_TRACE(); @@ -572,13 +574,27 @@ iavf_dev_start(struct rte_eth_dev *dev) vf->max_pkt_len = dev->data->dev_conf.rxmode.max_rx_pkt_len; vf->num_queue_pairs = RTE_MAX(dev->data->nb_rx_queues, dev->data->nb_tx_queues); + num_queue_pairs = vf->num_queue_pairs; if (iavf_init_queues(dev) != 0) { PMD_DRV_LOG(ERR, "failed to do Queue init"); return -1; } - if (iavf_configure_queues(adapter) != 0) { + /* If needed, send configure queues msg multiple times to make the + * adminq buffer length smaller than the 4K limitation. + */ + while (num_queue_pairs > IAVF_CFG_Q_NUM_PER_BUF) { + if (iavf_configure_queues(adapter, + IAVF_CFG_Q_NUM_PER_BUF, index) != 0) { + PMD_DRV_LOG(ERR, "configure queues failed"); + goto err_queue; + } + num_queue_pairs -= IAVF_CFG_Q_NUM_PER_BUF; + index += IAVF_CFG_Q_NUM_PER_BUF; + } + + if (iavf_configure_queues(adapter, num_queue_pairs, index) != 0) { PMD_DRV_LOG(ERR, "configure queues failed"); goto err_queue; } diff --git a/drivers/net/iavf/iavf_vchnl.c b/drivers/net/iavf/iavf_vchnl.c index 2c49a0e761..7e6abeca92 100644 --- a/drivers/net/iavf/iavf_vchnl.c +++ b/drivers/net/iavf/iavf_vchnl.c @@ -673,7 +673,8 @@ iavf_configure_rss_key(struct iavf_adapter *adapter) } int -iavf_configure_queues(struct iavf_adapter *adapter) +iavf_configure_queues(struct iavf_adapter *adapter, + uint16_t num_queue_pairs, uint16_t index) { struct iavf_rx_queue **rxq = (struct iavf_rx_queue **)adapter->eth_dev->data->rx_queues; @@ -687,16 +688,16 @@ iavf_configure_queues(struct iavf_adapter *adapter) int err; size = sizeof(*vc_config) + - sizeof(vc_config->qpair[0]) * vf->num_queue_pairs; + sizeof(vc_config->qpair[0]) * num_queue_pairs; vc_config = rte_zmalloc("cfg_queue", size, 0); if (!vc_config) return -ENOMEM; vc_config->vsi_id = vf->vsi_res->vsi_id; - vc_config->num_queue_pairs = vf->num_queue_pairs; + vc_config->num_queue_pairs = num_queue_pairs; - for (i = 0, vc_qp = vc_config->qpair; - i < vf->num_queue_pairs; + for (i = index, vc_qp = vc_config->qpair; + i < index + num_queue_pairs; i++, vc_qp++) { vc_qp->txq.vsi_id = vf->vsi_res->vsi_id; vc_qp->txq.queue_id = i; -- 2.20.1