diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/intel/i40evf/i40evf_main.c | 23 |
1 files changed, 14 insertions, 9 deletions
diff --git a/drivers/net/ethernet/intel/i40evf/i40evf_main.c b/drivers/net/ethernet/intel/i40evf/i40evf_main.c index d62e27f6e83a..ffda5657fe02 100644 --- a/drivers/net/ethernet/intel/i40evf/i40evf_main.c +++ b/drivers/net/ethernet/intel/i40evf/i40evf_main.c @@ -1414,6 +1414,13 @@ restart_watchdog: schedule_work(&adapter->adminq_task); } +static int next_queue(struct i40evf_adapter *adapter, int j) +{ + j += 1; + + return j >= adapter->vsi_res->num_queue_pairs ? 0 : j; +} + /** * i40evf_configure_rss - Prepare for RSS if used * @adapter: board private structure @@ -1444,15 +1451,13 @@ static void i40evf_configure_rss(struct i40evf_adapter *adapter) wr32(hw, I40E_VFQF_HENA(1), (u32)(hena >> 32)); /* Populate the LUT with max no. of queues in round robin fashion */ - for (i = 0, j = 0; i < I40E_VFQF_HLUT_MAX_INDEX; i++, j++) { - if (j == adapter->vsi_res->num_queue_pairs) - j = 0; - /* lut = 4-byte sliding window of 4 lut entries */ - lut = (lut << 8) | (j & - ((0x1 << 8) - 1)); - /* On i = 3, we have 4 entries in lut; write to the register */ - if ((i & 3) == 3) - wr32(hw, I40E_VFQF_HLUT(i >> 2), lut); + j = adapter->vsi_res->num_queue_pairs; + for (i = 0; i <= I40E_VFQF_HLUT_MAX_INDEX; i++) { + lut = next_queue(adapter, j); + lut |= next_queue(adapter, j) << 8; + lut |= next_queue(adapter, j) << 16; + lut |= next_queue(adapter, j) << 24; + wr32(hw, I40E_VFQF_HLUT(i), lut); } i40e_flush(hw); } |