From 2c7e41c0b2f103056f93dd5922c03d6e2021c76d Mon Sep 17 00:00:00 2001 From: Jakub Kicinski Date: Mon, 5 Jun 2017 17:01:55 -0700 Subject: [PATCH] nfp: allow non-equal distribution of IRQs Thus far the code assumed all vNICs will request similar number of IRQs. This will be no longer true with control vNICs (where 1 IRQ will suffice). Signed-off-by: Jakub Kicinski Signed-off-by: David S. Miller --- drivers/net/ethernet/netronome/nfp/nfp_net_main.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_main.c b/drivers/net/ethernet/netronome/nfp/nfp_net_main.c index 98a99b199674..362dca38223b 100644 --- a/drivers/net/ethernet/netronome/nfp/nfp_net_main.c +++ b/drivers/net/ethernet/netronome/nfp/nfp_net_main.c @@ -420,7 +420,8 @@ static int nfp_net_pf_alloc_irqs(struct nfp_pf *pf) list_for_each_entry(nn, &pf->vnics, vnic_list) { unsigned int n; - n = DIV_ROUND_UP(irqs_left, vnics_left); + n = min(NFP_NET_NON_Q_VECTORS + nn->dp.num_r_vecs, + DIV_ROUND_UP(irqs_left, vnics_left)); nfp_net_irqs_assign(nn, &pf->irq_entries[num_irqs - irqs_left], n); irqs_left -= n; -- 2.34.1