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| author | Stephen Hemminger <stephen@networkplumber.org> | 2017-12-01 11:01:47 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-12-03 10:10:02 -0500 |
| commit | a7f99d0f2bbfe3b42ce398cdd37a97762e72cb56 (patch) | |
| tree | ae1c99cb331fc717f3333cb3c4ce3b9fb57441a9 /drivers/net/hyperv/hyperv_net.h | |
| parent | b85e06f7bb1a25dd2e7755d55a2ca313d24ae7ad (diff) | |
| download | blackbird-op-linux-a7f99d0f2bbfe3b42ce398cdd37a97762e72cb56.tar.gz blackbird-op-linux-a7f99d0f2bbfe3b42ce398cdd37a97762e72cb56.zip | |
hv_netvsc: use reciprocal divide to speed up percent calculation
Every packet sent checks the available ring space. The calculation
can be sped up by using reciprocal divide which is multiplication.
Since ring_size can only be configured by module parameter, so it doesn't
have to be passed around everywhere. Also it should be unsigned
since it is number of pages.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/hyperv/hyperv_net.h')
| -rw-r--r-- | drivers/net/hyperv/hyperv_net.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h index 7226230561de..3d940c67ea94 100644 --- a/drivers/net/hyperv/hyperv_net.h +++ b/drivers/net/hyperv/hyperv_net.h @@ -146,7 +146,6 @@ struct hv_netvsc_packet { struct netvsc_device_info { unsigned char mac_adr[ETH_ALEN]; - int ring_size; u32 num_chn; u32 send_sections; u32 recv_sections; @@ -188,6 +187,9 @@ struct rndis_message; struct netvsc_device; struct net_device_context; +extern u32 netvsc_ring_bytes; +extern struct reciprocal_value netvsc_ring_reciprocal; + struct netvsc_device *netvsc_device_add(struct hv_device *device, const struct netvsc_device_info *info); int netvsc_alloc_recv_comp_ring(struct netvsc_device *net_device, u32 q_idx); @@ -804,8 +806,6 @@ struct netvsc_device { struct rndis_device *extension; - int ring_size; - u32 max_pkt; /* max number of pkt in one send, e.g. 8 */ u32 pkt_align; /* alignment bytes, e.g. 8 */ |
