diff options
| author | Florian Fainelli <f.fainelli@gmail.com> | 2018-03-22 18:19:33 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-03-25 20:48:25 -0400 |
| commit | 9f4ca05827a27ec73bf63a42732f1978b8a779af (patch) | |
| tree | 379aace8132a395ec66f9fa0ef474ad4edd25dac /drivers/net/ethernet/broadcom/genet/bcmgenet.h | |
| parent | b6e0e875421ef6debfbe05d3aa99ac788d886074 (diff) | |
net: bcmgenet: Add support for adaptive RX coalescing
Unlike the moder modern SYSTEMPORT hardware, we do not have a
configurable TDMA timeout, which limits us to implement adaptive RX
interrupt coalescing only. We have each of our RX rings implement a
bcmgenet_net_dim structure which holds an interrupt counter, number of
packets, bytes, and a container for a net_dim instance.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/broadcom/genet/bcmgenet.h')
| -rw-r--r-- | drivers/net/ethernet/broadcom/genet/bcmgenet.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.h b/drivers/net/ethernet/broadcom/genet/bcmgenet.h index 3c50431ccd2a..22c41e0430fb 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.h +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.h @@ -16,6 +16,7 @@ #include <linux/mii.h> #include <linux/if_vlan.h> #include <linux/phy.h> +#include <linux/net_dim.h> /* total number of Buffer Descriptors, same for Rx/Tx */ #define TOTAL_DESC 256 @@ -572,6 +573,16 @@ struct bcmgenet_tx_ring { struct bcmgenet_priv *priv; }; +struct bcmgenet_net_dim { + u16 use_dim; + u16 event_ctr; + unsigned long packets; + unsigned long bytes; + u32 coal_usecs; + u32 coal_pkts; + struct net_dim dim; +}; + struct bcmgenet_rx_ring { struct napi_struct napi; /* Rx NAPI struct */ unsigned long bytes; @@ -586,6 +597,7 @@ struct bcmgenet_rx_ring { unsigned int cb_ptr; /* Rx ring initial CB ptr */ unsigned int end_ptr; /* Rx ring end CB ptr */ unsigned int old_discards; + struct bcmgenet_net_dim dim; void (*int_enable)(struct bcmgenet_rx_ring *); void (*int_disable)(struct bcmgenet_rx_ring *); struct bcmgenet_priv *priv; |