diff options
| author | Carolyn Wyborny <carolyn.wyborny@intel.com> | 2013-12-10 07:58:34 +0000 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2013-12-17 22:43:14 -0800 |
| commit | cd14ef54d25bcf0b8e9205e75369e33b1d188417 (patch) | |
| tree | 887b05587af35d176f4657f5181910bb35e6c164 /drivers/net/ethernet/intel/igb/igb.h | |
| parent | 02ef6e1d0b00233a89d2c8bced880d8ea39603b6 (diff) | |
| download | linux-cd14ef54d25bcf0b8e9205e75369e33b1d188417.tar.gz linux-cd14ef54d25bcf0b8e9205e75369e33b1d188417.tar.bz2 linux-cd14ef54d25bcf0b8e9205e75369e33b1d188417.zip | |
igb: Change to use statically allocated array for MSIx entries
This patch changes how the driver initializes MSIx and checks
for MSIx configuration. This change makes it easier to reconfigure the
device when queue changes happen at runtime using ethtool's set_channels
feature.
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/igb/igb.h')
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h index 8aaca0a1dca0..ccf472f073dd 100644 --- a/drivers/net/ethernet/intel/igb/igb.h +++ b/drivers/net/ethernet/intel/igb/igb.h @@ -41,6 +41,7 @@ #include <linux/if_vlan.h> #include <linux/i2c.h> #include <linux/i2c-algo-bit.h> +#include <linux/pci.h> struct igb_adapter; @@ -67,6 +68,7 @@ struct igb_adapter; #define IGB_MIN_ITR_USECS 10 #define NON_Q_VECTORS 1 #define MAX_Q_VECTORS 8 +#define MAX_MSIX_ENTRIES 10 /* Transmit and receive queues */ #define IGB_MAX_RX_QUEUES 8 @@ -127,9 +129,9 @@ struct vf_data_storage { #define IGB_TX_PTHRESH ((hw->mac.type == e1000_i354) ? 20 : 8) #define IGB_TX_HTHRESH 1 #define IGB_RX_WTHRESH ((hw->mac.type == e1000_82576 && \ - adapter->msix_entries) ? 1 : 4) + (adapter->flags & IGB_FLAG_HAS_MSIX)) ? 1 : 4) #define IGB_TX_WTHRESH ((hw->mac.type == e1000_82576 && \ - adapter->msix_entries) ? 1 : 16) + (adapter->flags & IGB_FLAG_HAS_MSIX)) ? 1 : 16) /* this is the size past which hardware will drop packets when setting LPE=0 */ #define MAXIMUM_ETHERNET_VLAN_SIZE 1522 @@ -357,7 +359,7 @@ struct igb_adapter { unsigned int flags; unsigned int num_q_vectors; - struct msix_entry *msix_entries; + struct msix_entry msix_entries[MAX_MSIX_ENTRIES]; /* Interrupt Throttle Rate */ u32 rx_itr_setting; @@ -469,6 +471,7 @@ struct igb_adapter { #define IGB_FLAG_MEDIA_RESET (1 << 10) #define IGB_FLAG_MAS_CAPABLE (1 << 11) #define IGB_FLAG_MAS_ENABLE (1 << 12) +#define IGB_FLAG_HAS_MSIX (1 << 13) /* Media Auto Sense */ #define IGB_MAS_ENABLE_0 0X0001 |