[dpdk-dev] [Bug 83] For RSS flow actions, e1000_ethdev.h uses IGB_MAX_RX_QUEUE_NUM instead of IGB_MAX_RX_QUEUE_NUM_82576

[bugzilla at dpdk.org]

https://bugs.dpdk.org/show_bug.cgi?id=83

            Bug ID: 83
           Summary: For RSS flow actions, e1000_ethdev.h uses
                    IGB_MAX_RX_QUEUE_NUM instead of
                    IGB_MAX_RX_QUEUE_NUM_82576
           Product: DPDK
           Version: unspecified
          Hardware: All
                OS: All
            Status: CONFIRMED
          Severity: normal
          Priority: Normal
         Component: ethdev
          Assignee: dev at dpdk.org
          Reporter: dpdk at stormmq.com
  Target Milestone: ---

NOTE: This report needs to be confirmed by someone who is familiar with this
code.

When using the rss_flow_action, the `queue_num` needs to be specified. The only
indication of what the maximum value for this is from
`rte_eth_dev_info.max_rx_queues`. This seems to work for all PMDs that support
this flow action *except* for the 82576 variant of e1000.

This is because at line 239, the 'queue' parameter of struct
igb_rte_flow_rss_conf is defined as IGB_MAX_RX_QUEUE_NUM, yet this device
reports its maximum queue size as being the same as IGB_MAX_RX_QUEUE_NUM_82576
in `rte_eth_dev_info.max_rx_queues` - although it doesn't reference the same
constant.

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