From: KY Srinivasan Date: Wed, 2 Dec 2015 00:43:04 +0000 (-0800) Subject: hv_netvsc: Rearrange the hv_negtvsc_packet to be space efficient X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=934d202255ecd03d1f48b1031a2e03cb647e73d9;p=deliverable%2Flinux.git hv_netvsc: Rearrange the hv_negtvsc_packet to be space efficient Rearrange the elements of struct hv_negtvsc_packet for optimal layout - eliminate unnecessary padding. Signed-off-by: K. Y. Srinivasan Reviewed-by: Haiyang Zhang Signed-off-by: David S. Miller --- diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h index 5f0a21fe0fb4..3f66a23dd94f 100644 --- a/drivers/net/hyperv/hyperv_net.h +++ b/drivers/net/hyperv/hyperv_net.h @@ -128,32 +128,34 @@ struct ndis_tcp_ip_checksum_info; struct hv_netvsc_packet { /* Bookkeeping stuff */ u8 status; - u8 is_data_pkt; u8 xmit_more; /* from skb */ u8 cp_partial; /* partial copy into send buffer */ - u16 vlan_tci; + u8 rmsg_size; /* RNDIS header and PPI size */ + u8 rmsg_pgcnt; /* page count of RNDIS header and PPI */ + u8 page_buf_cnt; + u8 pad0; + u16 vlan_tci; u16 q_idx; + u32 send_buf_index; + + u32 total_data_buflen; + u32 pad1; + struct vmbus_channel *channel; u64 send_completion_tid; void *send_completion_ctx; void (*send_completion)(void *context); - u32 send_buf_index; /* This points to the memory after page_buf */ struct rndis_message *rndis_msg; - u8 rmsg_size; /* RNDIS header and PPI size */ - u8 rmsg_pgcnt; /* page count of RNDIS header and PPI */ - - u32 total_data_buflen; /* Points to the send/receive buffer where the ethernet frame is */ void *data; - u8 page_buf_cnt; struct hv_page_buffer *page_buf; };