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Date: Mon, 5 Jun 2017 17:01:55 -0700
From: Jakub Kicinski <jakub.kicinski@...ronome.com>
To: netdev@...r.kernel.org
Cc: oss-drivers@...ronome.com,
Jakub Kicinski <jakub.kicinski@...ronome.com>
Subject: [PATCH net-next 14/16] 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 <jakub.kicinski@...ronome.com>
---
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;
--
2.11.0
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