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bnxt_en: Cap the msix vector with the max completion rings.

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The current code enables up to the maximum MSIX vectors in the PCIE
config space without considering the max completion rings available.
An MSIX vector is only useful when it has an associated completion
ring, so it is better to cap it.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2017-04-04 18:14:17 -04:00 committed by David S. Miller
parent 932dbf83ba
commit 68a946bb81
1 changed files with 3 additions and 2 deletions
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5
drivers/net/ethernet/broadcom/bnxt/bnxt.c
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@ -5183,9 +5183,10 @@ static unsigned int bnxt_get_max_func_irqs(struct bnxt *bp)
{
#if defined(CONFIG_BNXT_SRIOV)
if (BNXT_VF(bp))
return bp->vf.max_irqs;
return min_t(unsigned int, bp->vf.max_irqs,
bp->vf.max_cp_rings);
#endif
return bp->pf.max_irqs;
return min_t(unsigned int, bp->pf.max_irqs, bp->pf.max_cp_rings);
}
void bnxt_set_max_func_irqs(struct bnxt *bp, unsigned int max_irqs)