net/ixgbe: fix the failure of number of Tx queue check

Tx_q check fails when the SRIOV is active and tx_q > rx_q. It has
to use the maximum HW queue number for calculation, to get the
right number of queue can be used.

Fixes: 27b609cbd1c6 ("ethdev: move the multi-queue mode check to specific drivers")
Cc: stable@dpdk.org
Signed-off-by: Yanglong Wu <yanglong.wu@intel.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>

diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index a52080b..efce458 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -66,6 +66,9 @@
 /* Timer value included in XOFF frames. */
 #define IXGBE_FC_PAUSE 0x680
 
+/*Default value of Max Rx Queue*/
+#define IXGBE_MAX_RX_QUEUE_NUM 128
+
 #define IXGBE_LINK_DOWN_CHECK_TIMEOUT 4000 /* ms */
 #define IXGBE_LINK_UP_CHECK_TIMEOUT   1000 /* ms */
 #define IXGBE_VMDQ_NUM_UC_MAC         4096 /* Maximum nb. of UC MAC addr. */
@@ -2168,9 +2171,10 @@ ixgbe_check_vf_rss_rxq_num(struct rte_eth_dev *dev, uint16_t nb_rx_q)
                return -EINVAL;
        }
 
-       RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool = nb_rx_q;
-       RTE_ETH_DEV_SRIOV(dev).def_pool_q_idx = pci_dev->max_vfs * nb_rx_q;
-
+       RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool =
+               IXGBE_MAX_RX_QUEUE_NUM / RTE_ETH_DEV_SRIOV(dev).active;
+       RTE_ETH_DEV_SRIOV(dev).def_pool_q_idx =
+               pci_dev->max_vfs * RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
        return 0;
 }