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| author | Alexander Duyck <alexander.h.duyck@intel.com> | 2009-11-12 18:37:19 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-11-13 20:46:50 -0800 |
| commit | a99955fc067f57cf3b627d4c74bf7952a2d51029 (patch) | |
| tree | 9c70e2a346be40b9d16b861c9f619e2cd6687948 /drivers/net/igb/igb.h | |
| parent | 115f459a53b0c56a699a76b34b82507452eb3df5 (diff) | |
| download | linux-a99955fc067f57cf3b627d4c74bf7952a2d51029.tar.gz linux-a99955fc067f57cf3b627d4c74bf7952a2d51029.tar.bz2 linux-a99955fc067f57cf3b627d4c74bf7952a2d51029.zip | |
igb: when number of CPUs > 4 combine tx/rx queues to allow more queues
This patch makes it so that nics such as 82576 and newer can support more
hardware queues when there are more than 4 cpus by combining a tx/rx queue
pair onto one interrupt so that 8 queue pairs can be supported and thus
allow for more queues.
Signed-off-by: Alexander Duyck <alexander.h.duyck@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/igb/igb.h')
| -rw-r--r-- | drivers/net/igb/igb.h | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/net/igb/igb.h b/drivers/net/igb/igb.h index 3298f5a11dab..2bb95494377d 100644 --- a/drivers/net/igb/igb.h +++ b/drivers/net/igb/igb.h @@ -59,10 +59,10 @@ struct igb_adapter; #define MAX_Q_VECTORS 8 /* Transmit and receive queues */ -#define IGB_MAX_RX_QUEUES (adapter->vfs_allocated_count ? \ - (adapter->vfs_allocated_count > 6 ? 1 : 2) : 4) -#define IGB_MAX_TX_QUEUES IGB_MAX_RX_QUEUES -#define IGB_ABS_MAX_TX_QUEUES 4 +#define IGB_MAX_RX_QUEUES (adapter->vfs_allocated_count ? 2 : \ + (hw->mac.type > e1000_82575 ? 8 : 4)) +#define IGB_ABS_MAX_TX_QUEUES 8 +#define IGB_MAX_TX_QUEUES IGB_MAX_RX_QUEUES #define IGB_MAX_VF_MC_ENTRIES 30 #define IGB_MAX_VF_FUNCTIONS 8 @@ -315,6 +315,7 @@ struct igb_adapter { u16 rx_ring_count; unsigned int vfs_allocated_count; struct vf_data_storage *vf_data; + u32 rss_queues; }; #define IGB_FLAG_HAS_MSI (1 << 0) |