diff options
| author |   Mitch Williams <mitch.a.williams@intel.com> | 2015-04-27 14:57:09 -0400 |
|---|---|---|
| committer |   Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2015-07-14 18:26:41 -0700 |
| commit | 973371da4d66b96736143bd3f2b2ff2331faae8f (patch) | |
| tree | fc73faa01c6a0db5f8ddc300c0bc2ebdc37bae99 /drivers/net/ethernet/intel/i40evf/i40evf_main.c | |
| parent | i40e/i40evf: improve Tx performance with a small tweak (diff) | |
| download | linux-dev-973371da4d66b96736143bd3f2b2ff2331faae8f.tar.xz linux-dev-973371da4d66b96736143bd3f2b2ff2331faae8f.zip | |
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 <mitch.a.williams@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ethernet/intel/i40evf/i40evf_main.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c index 4ab4ebba07a1..94eff4a269e6 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); |