From c1c00ab8626298ac784ea344bf10e94b5bd9bcb5 Mon Sep 17 00:00:00 2001 From: Dhananjay Phadke Date: Wed, 5 Aug 2009 07:34:09 +0000 Subject: netxen: add hardware LRO support Add support to handle aggregate packets from firmware. Local TCP flows are automatically identified by firmware based on the dest IP hash added by driver for local IP addresses. The packets are sent down on the jumbo rx ring. Signed-off-by: Narender Kumar Signed-off-by: Dhananjay Phadke Signed-off-by: David S. Miller --- drivers/net/netxen/netxen_nic.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'drivers/net/netxen/netxen_nic.h') diff --git a/drivers/net/netxen/netxen_nic.h b/drivers/net/netxen/netxen_nic.h index bb4aa4f58676..ae81f7022d23 100644 --- a/drivers/net/netxen/netxen_nic.h +++ b/drivers/net/netxen/netxen_nic.h @@ -365,6 +365,7 @@ struct rcv_desc { #define NETXEN_NIC_RXPKT_DESC 0x04 #define NETXEN_OLD_RXPKT_DESC 0x3f #define NETXEN_NIC_RESPONSE_DESC 0x05 +#define NETXEN_NIC_LRO_DESC 0x12 /* for status field in status_desc */ #define STATUS_NEED_CKSUM (1) @@ -398,6 +399,24 @@ struct rcv_desc { #define netxen_get_sts_opcode(sts_data) \ (((sts_data) >> 58) & 0x03F) +#define netxen_get_lro_sts_refhandle(sts_data) \ + ((sts_data) & 0x0FFFF) +#define netxen_get_lro_sts_length(sts_data) \ + (((sts_data) >> 16) & 0x0FFFF) +#define netxen_get_lro_sts_l2_hdr_offset(sts_data) \ + (((sts_data) >> 32) & 0x0FF) +#define netxen_get_lro_sts_l4_hdr_offset(sts_data) \ + (((sts_data) >> 40) & 0x0FF) +#define netxen_get_lro_sts_timestamp(sts_data) \ + (((sts_data) >> 48) & 0x1) +#define netxen_get_lro_sts_type(sts_data) \ + (((sts_data) >> 49) & 0x7) +#define netxen_get_lro_sts_push_flag(sts_data) \ + (((sts_data) >> 52) & 0x1) +#define netxen_get_lro_sts_seq_number(sts_data) \ + ((sts_data) & 0x0FFFFFFFF) + + struct status_desc { __le64 status_desc_data[2]; } __attribute__ ((aligned(16))); @@ -712,6 +731,7 @@ struct netxen_recv_context { #define NX_CAP0_LSO NX_CAP_BIT(0, 6) #define NX_CAP0_JUMBO_CONTIGUOUS NX_CAP_BIT(0, 7) #define NX_CAP0_LRO_CONTIGUOUS NX_CAP_BIT(0, 8) +#define NX_CAP0_HW_LRO NX_CAP_BIT(0, 10) /* * Context state @@ -969,6 +989,7 @@ typedef struct { #define NX_FW_CAPABILITY_PEXQ (1 << 7) #define NX_FW_CAPABILITY_BDG (1 << 8) #define NX_FW_CAPABILITY_FVLANTX (1 << 9) +#define NX_FW_CAPABILITY_HW_LRO (1 << 10) /* module types */ #define LINKEVENT_MODULE_NOT_PRESENT 1 -- cgit v1.2.3