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authorMichael Chan2016-01-03 05:45:01 +0100
committerDavid S. Miller2016-01-04 21:54:39 +0100
commitb81a90d3028af92da61a61e2efd231a585180044 (patch)
treef8bb3c743a435fa16dcbe68cba15103d0195c6cb /drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
parentbnxt_en: Check for NULL rx or tx ring. (diff)
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bnxt_en: Re-structure ring indexing and mapping.
In order to support dedicated or shared completion rings, the ring indexing and mapping are re-structured as below: 1. bp->grp_info[] array index is 1:1 with bp->bnapi[] array index and completion ring index. 2. rx rings 0 to n will be mapped to completion rings 0 to n. 3. If tx and rx rings share completion rings, then tx rings 0 to m will be mapped to completion rings 0 to m. 4. If tx and rx rings use dedicated completion rings, then tx rings 0 to m will be mapped to completion rings n + 1 to n + m. 5. Each tx or rx ring will use the corresponding completion ring index for doorbell mapping and MSIX mapping. Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c')
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