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Commit f961ddae authored by Mark Rustad's avatar Mark Rustad Committed by Jeff Kirsher
Browse files

ixgbe: Add small packet padding support for X550 



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

Signed-off-by: default avatarMark Rustad <mark.d.rustad@intel.com>
Tested-by: default avatarPhil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
parent 052a1a72

drivers/net/ethernet/intel/ixgbe/ixgbe_main.c

+3 −0
Original line number Diff line number Diff line
@@ -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 */

drivers/net/ethernet/intel/ixgbe/ixgbe_type.h

+1 −0
Original line number Diff line number Diff line
@@ -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 */