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ixgbe: Add small packet padding support for X550

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This patch sets RDRXCTL.PSP when the driver is in SRIOV mode which
enables padding of small packets.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Mark Rustad 2015-08-08 16:19:09 -07:00 committed by Jeff Kirsher
parent 052a1a7243
commit f961ddae16
2 changed files with 4 additions and 0 deletions
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3
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
View File

@ -3804,6 +3804,9 @@ static void ixgbe_setup_rdrxctl(struct ixgbe_adapter *adapter)
break;
case ixgbe_mac_X550:
case ixgbe_mac_X550EM_x:
if (adapter->num_vfs)
rdrxctl |= IXGBE_RDRXCTL_PSP;
/* fall through for older HW */
case ixgbe_mac_82599EB:
case ixgbe_mac_X540:
/* Disable RSC for ACK packets */

1
drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
View File

@ -1193,6 +1193,7 @@ struct ixgbe_thermal_sensor_data {
/* RDRXCTL Bit Masks */
#define IXGBE_RDRXCTL_RDMTS_1_2 0x00000000 /* Rx Desc Min Threshold Size */
#define IXGBE_RDRXCTL_CRCSTRIP 0x00000002 /* CRC Strip */
#define IXGBE_RDRXCTL_PSP 0x00000004 /* Pad small packet */
#define IXGBE_RDRXCTL_MVMEN 0x00000020
#define IXGBE_RDRXCTL_DMAIDONE 0x00000008 /* DMA init cycle done */
#define IXGBE_RDRXCTL_AGGDIS 0x00010000 /* Aggregation disable */