diff options
| author | Sathya Perla <sathya.perla@emulex.com> | 2015-01-05 05:48:34 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-01-05 16:32:53 -0500 |
| commit | 5f07b3c51abe330c3dd702622c419efffb5757f0 (patch) | |
| tree | c666cc118eaac0087e79fa33119cb69507a1b748 /drivers/net/ethernet/emulex/benet/be_hw.h | |
| parent | 889ee2c7d70e1ae9fc9341d0e82676c519ffede2 (diff) | |
| download | linux-5f07b3c51abe330c3dd702622c419efffb5757f0.tar.bz2 | |
be2net: support TX batching using skb->xmit_more flag
This patch uses skb->xmit_more flag to batch TX requests.
TX is flushed either when xmit_more is false or there is
no more space in the TXQ.
Skyhawk-R and BEx chips require an even number of wrbs to be posted.
So, when a batch of TX requests is accumulated, the last header wrb
may need to be fixed with an extra dummy wrb.
This patch refactors be_xmit() routine as a sequence of be_xmit_enqueue()
and be_xmit_flush() calls. The Tx completion code is also
updated to be able to unmap/free a batch of skbs rather than a single
skb.
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/emulex/benet/be_hw.h')
| -rw-r--r-- | drivers/net/ethernet/emulex/benet/be_hw.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/ethernet/emulex/benet/be_hw.h b/drivers/net/ethernet/emulex/benet/be_hw.h index 295ee0835ba0..6d7b3a4d3cff 100644 --- a/drivers/net/ethernet/emulex/benet/be_hw.h +++ b/drivers/net/ethernet/emulex/benet/be_hw.h @@ -311,6 +311,11 @@ struct amap_eth_hdr_wrb { u8 vlan_tag[16]; } __packed; +#define TX_HDR_WRB_COMPL 1 /* word 2 */ +#define TX_HDR_WRB_EVT (1 << 1) /* word 2 */ +#define TX_HDR_WRB_NUM_SHIFT 13 /* word 2: bits 13:17 */ +#define TX_HDR_WRB_NUM_MASK 0x1F /* word 2: bits 13:17 */ + struct be_eth_hdr_wrb { u32 dw[4]; }; |