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hv_netvsc: Rearrange the hv_negtvsc_packet to be space efficient

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Rearrange the elements of struct hv_negtvsc_packet for optimal layout -
eliminate unnecessary padding.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
KY Srinivasan 2015-12-01 16:43:04 -08:00 committed by David S. Miller
parent 22e9dd249b
commit 934d202255
1 changed files with 10 additions and 8 deletions
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18
drivers/net/hyperv/hyperv_net.h
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@ -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;
};