[dpdk-dev] [PATCH v3 1/4] fm10k: add multi-queue checking

[Shaopeng He]

Add multi-queue checking in device configure function.
Currently, VMDQ and RSS are supported.

Signed-off-by: Shaopeng He <shaopeng.he at intel.com>
---
 drivers/net/fm10k/fm10k_ethdev.c | 44 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/drivers/net/fm10k/fm10k_ethdev.c b/drivers/net/fm10k/fm10k_ethdev.c
index a69c990..082937d 100644
--- a/drivers/net/fm10k/fm10k_ethdev.c
+++ b/drivers/net/fm10k/fm10k_ethdev.c
@@ -283,12 +283,56 @@ tx_queue_disable(struct fm10k_hw *hw, uint16_t qnum)
 }

 static int
+fm10k_check_mq_mode(struct rte_eth_dev *dev)
+{
+       enum rte_eth_rx_mq_mode rx_mq_mode = dev->data->dev_conf.rxmode.mq_mode;
+       struct fm10k_hw *hw = FM10K_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+       struct rte_eth_vmdq_rx_conf *vmdq_conf;
+       uint16_t nb_rx_q = dev->data->nb_rx_queues;
+
+       vmdq_conf = &dev->data->dev_conf.rx_adv_conf.vmdq_rx_conf;
+
+       if (rx_mq_mode & ETH_MQ_RX_DCB_FLAG) {
+               PMD_INIT_LOG(ERR, "DCB mode is not supported.");
+               return -EINVAL;
+       }
+
+       if (!(rx_mq_mode & ETH_MQ_RX_VMDQ_FLAG))
+               return 0;
+
+       if (hw->mac.type == fm10k_mac_vf) {
+               PMD_INIT_LOG(ERR, "VMDQ mode is not supported in VF.");
+               return -EINVAL;
+       }
+
+       /* Check VMDQ queue pool number */
+       if (vmdq_conf->nb_queue_pools >
+                       sizeof(vmdq_conf->pool_map[0].pools) * CHAR_BIT ||
+                       vmdq_conf->nb_queue_pools > nb_rx_q) {
+               PMD_INIT_LOG(ERR, "Too many of queue pools: %d",
+                       vmdq_conf->nb_queue_pools);
+               return -EINVAL;
+       }
+
+       return 0;
+}
+
+static int
 fm10k_dev_configure(struct rte_eth_dev *dev)
 {
+       int ret;
+
        PMD_INIT_FUNC_TRACE();

        if (dev->data->dev_conf.rxmode.hw_strip_crc == 0)
                PMD_INIT_LOG(WARNING, "fm10k always strip CRC");
+       /* multipe queue mode checking */
+       ret  = fm10k_check_mq_mode(dev);
+       if (ret != 0) {
+               PMD_DRV_LOG(ERR, "fm10k_check_mq_mode fails with %d.",
+                           ret);
+               return ret;
+       }

        return 0;
 }
-- 
1.9.3