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| author | John Fastabend | 2013-11-08 09:50:32 +0100 |
|---|---|---|
| committer | David S. Miller | 2013-11-08 21:21:08 +0100 |
| commit | 219354d4897fe06cb10d68308c14128a1e3fc074 (patch) | |
| tree | 14283a21cf4440808390c90aeb7afba395289a30 | |
| parent | ipv6: use rt6_get_dflt_router to get default router in rt6_route_rcv (diff) | |
| download | kernel-qcow2-linux-219354d4897fe06cb10d68308c14128a1e3fc074.tar.gz kernel-qcow2-linux-219354d4897fe06cb10d68308c14128a1e3fc074.tar.xz kernel-qcow2-linux-219354d4897fe06cb10d68308c14128a1e3fc074.zip | |
ixgbe: fix build err, num_rx_queues is only available with CONFIG_RPS
In the recent support for layer 2 hardware acceleration, I added a
few references to real_num_rx_queues and num_rx_queues which are
only available with CONFIG_RPS.
The fix is first to remove unnecessary references to num_rx_queues.
Because the hardware offload case is limited to cases where RX queues
and TX queues are equal we only need a single check. Then wrap the
single case in an ifdef.
The patch that introduce this is here,
commit a6cc0cfa72e0b6d9f2c8fd858aacc32313c4f272
Author: John Fastabend <john.r.fastabend@intel.com>
Date: Wed Nov 6 09:54:46 2013 -0800
net: Add layer 2 hardware acceleration operations for macvlan devices
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 607275de2f1e..2e17c307c6df 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -4164,7 +4164,7 @@ static void ixgbe_add_mac_filter(struct ixgbe_adapter *adapter, static void ixgbe_fwd_psrtype(struct ixgbe_fwd_adapter *vadapter) { struct ixgbe_adapter *adapter = vadapter->real_adapter; - int rss_i = vadapter->netdev->real_num_rx_queues; + int rss_i = adapter->num_rx_queues_per_pool; struct ixgbe_hw *hw = &adapter->hw; u16 pool = vadapter->pool; u32 psrtype = IXGBE_PSRTYPE_TCPHDR | @@ -4315,8 +4315,6 @@ static int ixgbe_fwd_ring_up(struct net_device *vdev, if (err) goto fwd_queue_err; - queues = min_t(unsigned int, - adapter->num_rx_queues_per_pool, vdev->num_rx_queues); err = netif_set_real_num_rx_queues(vdev, queues); if (err) goto fwd_queue_err; @@ -7540,9 +7538,15 @@ static void *ixgbe_fwd_add(struct net_device *pdev, struct net_device *vdev) struct ixgbe_adapter *adapter = netdev_priv(pdev); int pool, err; +#ifdef CONFIG_RPS + if (vdev->num_rx_queues != vdev->num_tx_queues) { + netdev_info(pdev, "%s: Only supports a single queue count for TX and RX\n", + vdev->name); + return ERR_PTR(-EINVAL); + } +#endif /* Check for hardware restriction on number of rx/tx queues */ - if (vdev->num_rx_queues != vdev->num_tx_queues || - vdev->num_tx_queues > IXGBE_MAX_L2A_QUEUES || + if (vdev->num_tx_queues > IXGBE_MAX_L2A_QUEUES || vdev->num_tx_queues == IXGBE_BAD_L2A_QUEUE) { netdev_info(pdev, "%s: Supports RX/TX Queue counts 1,2, and 4\n", @@ -7566,7 +7570,7 @@ static void *ixgbe_fwd_add(struct net_device *pdev, struct net_device *vdev) /* Enable VMDq flag so device will be set in VM mode */ adapter->flags |= IXGBE_FLAG_VMDQ_ENABLED | IXGBE_FLAG_SRIOV_ENABLED; adapter->ring_feature[RING_F_VMDQ].limit = adapter->num_rx_pools; - adapter->ring_feature[RING_F_RSS].limit = vdev->num_rx_queues; + adapter->ring_feature[RING_F_RSS].limit = vdev->num_tx_queues; /* Force reinit of ring allocation with VMDQ enabled */ err = ixgbe_setup_tc(pdev, netdev_get_num_tc(pdev)); |