netdev - [net-next 02/10] ixgbe: Default to 1 pool always being allocated

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Message-Id: <20180112172932.46683-3-jeffrey.t.kirsher@intel.com>
Date:   Fri, 12 Jan 2018 09:29:24 -0800
From:   Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:     davem@...emloft.net
Cc:     Alexander Duyck <alexander.h.duyck@...el.com>,
        netdev@...r.kernel.org, nhorman@...hat.com, sassmann@...hat.com,
        jogreene@...hat.com, Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next 02/10] ixgbe: Default to 1 pool always being allocated

From: Alexander Duyck <alexander.h.duyck@...el.com>

We might as well configure the limit to default to 1 pool always for the
interface. This accounts for the fact that the PF counts as 1 pool if
SR-IOV is enabled, and in general we are always running in 1 pool mode when
RSS or DCB is enabled as well, though we don't need to actually evaluate
any of the VMDq features in those cases.

Signed-off-by: Alexander Duyck <alexander.h.duyck@...el.com>
Tested-by: Andrew Bowers <andrewx.bowers@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c  | 1 +
 drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c | 7 ++-----
 2 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 9416531335f7..ffd9619f4c80 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -6129,6 +6129,7 @@ static int ixgbe_sw_init(struct ixgbe_adapter *adapter,
 	fdir = min_t(int, IXGBE_MAX_FDIR_INDICES, num_online_cpus());
 	adapter->ring_feature[RING_F_FDIR].limit = fdir;
 	adapter->fdir_pballoc = IXGBE_FDIR_PBALLOC_64K;
+	adapter->ring_feature[RING_F_VMDQ].limit = 1;
 #ifdef CONFIG_IXGBE_DCA
 	adapter->flags |= IXGBE_FLAG_DCA_CAPABLE;
 #endif
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
index 0085f4632966..543f2e60e4b7 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
@@ -78,12 +78,9 @@ static int __ixgbe_enable_sriov(struct ixgbe_adapter *adapter,
 	struct ixgbe_hw *hw = &adapter->hw;
 	int i;
 
-	adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED;
-
 	/* Enable VMDq flag so device will be set in VM mode */
-	adapter->flags |= IXGBE_FLAG_VMDQ_ENABLED;
-	if (!adapter->ring_feature[RING_F_VMDQ].limit)
-		adapter->ring_feature[RING_F_VMDQ].limit = 1;
+	adapter->flags |= IXGBE_FLAG_SRIOV_ENABLED |
+			  IXGBE_FLAG_VMDQ_ENABLED;
 
 	/* Allocate memory for per VF control structures */
 	adapter->vfinfo = kcalloc(num_vfs, sizeof(struct vf_data_storage),
-- 
2.15.1