From: Mitch Williams Date: Mon, 27 Apr 2015 18:57:09 +0000 (-0400) Subject: i40evf: Allow for an abundance of vectors X-Git-Tag: v4.14-rc1~4777^2~359^2~11 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=973371da4d66b96736143bd3f2b2ff2331faae8f;p=platform%2Fkernel%2Flinux-rpi.git i40evf: Allow for an abundance of vectors The driver currently only maps TX and RX queues to a single MSI-X vector per queue pair if there are exactly enough vectors for this. Unfortunately, if we have too many vectors it will fail and allocate queues to vectors in a suboptimal manner. Change the condition check to allow for excess vectors. In this case, the extras just won't be used. Change-ID: I23e1e2955c64739c86612db88a25583e6a7e0b17 Signed-off-by: Mitch Williams Tested-by: Jim Young Signed-off-by: Jeff Kirsher --- diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c index 4ab4ebb..94eff4a 100644 --- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c +++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c @@ -406,7 +406,7 @@ static int i40evf_map_rings_to_vectors(struct i40evf_adapter *adapter) /* The ideal configuration... * We have enough vectors to map one per queue. */ - if (q_vectors == (rxr_remaining * 2)) { + if (q_vectors >= (rxr_remaining * 2)) { for (; rxr_idx < rxr_remaining; v_start++, rxr_idx++) i40evf_map_vector_to_rxq(adapter, v_start, rxr_idx);