From: Catherine Sullivan Date: Mon, 16 May 2016 17:26:41 +0000 (-0700) Subject: i40e: Fix RSS to not be limited by the number of CPUs X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=7d64402f5ae5acb8258860ace394a21b4584fe8f;p=linux-beck.git i40e: Fix RSS to not be limited by the number of CPUs Limiting qcount to pf->num_lan_msix, effectively limits the RSS queues to only use the number of CPUs, and ignore all other queues. We don't want to do this. If the user has changed the RSS settings to use more queues then CPUS, we want to trust they know what they are doing and let them. More importantly, if we tell them that is what we did, we want to actually do it and allow traffic into all of the queues we have allocated. This does not change the default setting to initially allocate only the number of CPUS of queue pairs. Change-ID: Ie941a96e806e4bcd016addb4e17affb46770ada5 Signed-off-by: Catherine Sullivan Tested-by: Andrew Bowers --- diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 52d9d28d677d..a32be7c5e21e 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -1579,14 +1579,8 @@ static void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi, vsi->tc_config.numtc = numtc; vsi->tc_config.enabled_tc = enabled_tc ? enabled_tc : 1; /* Number of queues per enabled TC */ - /* In MFP case we can have a much lower count of MSIx - * vectors available and so we need to lower the used - * q count. - */ - if (pf->flags & I40E_FLAG_MSIX_ENABLED) - qcount = min_t(int, vsi->alloc_queue_pairs, pf->num_lan_msix); - else - qcount = vsi->alloc_queue_pairs; + qcount = vsi->alloc_queue_pairs; + num_tc_qps = qcount / numtc; num_tc_qps = min_t(int, num_tc_qps, i40e_pf_get_max_q_per_tc(pf));