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| author | Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> | 2009-02-01 01:18:58 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-02-01 01:18:58 -0800 |
| commit | eb7f139ce523bfe03b1628c66d3e1d50f3c07196 (patch) | |
| tree | d41b641e1a94911aaddc22b63d3d470f6cfd3ef1 /drivers/net/ixgbe/ixgbe_main.c | |
| parent | 2f21bdd3542838dc5513a585a32aa13f01b019e7 (diff) | |
| download | kernel_samsung_smdk4412-eb7f139ce523bfe03b1628c66d3e1d50f3c07196.tar.gz kernel_samsung_smdk4412-eb7f139ce523bfe03b1628c66d3e1d50f3c07196.tar.bz2 kernel_samsung_smdk4412-eb7f139ce523bfe03b1628c66d3e1d50f3c07196.zip | |
ixgbe: Refactor MSI-X allocation mechanism
Our current MSI-X allocation mechanism does not support new hardware
at all. It also isn't getting the actual number of supported MSI-X vectors
from the device.
This patch allows the number of MSI-X vectors to be specific to a device,
plus it gets the number of MSI-X vectors available from PCIe configuration
space.
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ixgbe/ixgbe_main.c')
| -rw-r--r-- | drivers/net/ixgbe/ixgbe_main.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c index 82afc606c23..7bbafa3ebbe 100644 --- a/drivers/net/ixgbe/ixgbe_main.c +++ b/drivers/net/ixgbe/ixgbe_main.c @@ -2421,7 +2421,13 @@ static void ixgbe_acquire_msix_vectors(struct ixgbe_adapter *adapter, ixgbe_set_num_queues(adapter); } else { adapter->flags |= IXGBE_FLAG_MSIX_ENABLED; /* Woot! */ - adapter->num_msix_vectors = vectors; + /* + * Adjust for only the vectors we'll use, which is minimum + * of max_msix_q_vectors + NON_Q_VECTORS, or the number of + * vectors we were allocated. + */ + adapter->num_msix_vectors = min(vectors, + adapter->max_msix_q_vectors + NON_Q_VECTORS); } } @@ -2746,6 +2752,7 @@ static int __devinit ixgbe_sw_init(struct ixgbe_adapter *adapter) adapter->ring_feature[RING_F_RSS].indices = rss; adapter->flags |= IXGBE_FLAG_RSS_ENABLED; adapter->ring_feature[RING_F_DCB].indices = IXGBE_MAX_DCB_INDICES; + adapter->max_msix_q_vectors = MAX_MSIX_Q_VECTORS_82598; #ifdef CONFIG_IXGBE_DCB /* Configure DCB traffic classes */ |