f0aa0e9579
Currently, the maximum value of rx/tx queues are kept by EAL. But, the value is used like below with different meanings in vhost PMD. - The maximum value of current enabled queues. - The maximum value of current supported queues. This wrong double meaning will cause an issue like below steps. * Invoke application with below option. --vdev 'eth_vhost0,iface=<socket path>,queues=4' * Configure queues like below. rte_eth_dev_configure(portid, 2, 2, ...); * Configure queues again like below. rte_eth_dev_configure(portid, 4, 4, ...); The second rte_eth_dev_configure() will fail because both the maximum value of current enabled queues and supported queues will be '2' after calling first rte_eth_dev_configure(). To fix the issue, the patch adds another variable to keep the maximum number of supported queues in vhost PMD. Fixes: 23981fb0d78b ("vhost: Add vhost PMD") Signed-off-by: Tetsuya Mukawa <mukawa@igel.co.jp> Acked-by: Ciara Loftus <ciara.loftus@intel.com> |
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