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vmxnet3: add support for get_coalesce, set_coalesce ethtool operations

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The emulation supports a variety of coalescing modes viz. disabled
(no coalescing), adaptive, static (number of packets to batch before
raising an interrupt), rate based (number of interrupts per second).

This patch implements get_coalesce and set_coalesce methods to allow
querying and configuring different coalescing modes.

Signed-off-by: Keyong Sun <sunk@vmware.com>
Signed-off-by: Manoj Tammali <tammalim@vmware.com>
Signed-off-by: Shrikrishna Khare <skhare@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Shrikrishna Khare
2016-06-16 10:51:57 -07:00
committed by David S. Miller
parent 50a5ce3e71
commit 4edef40ef5
4 changed files with 253 additions and 1 deletions
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9
drivers/net/vmxnet3/vmxnet3_int.h
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@@ -358,6 +358,7 @@ struct vmxnet3_adapter {
int rx_buf_per_pkt; /* only apply to the 1st ring */
dma_addr_t shared_pa;
dma_addr_t queue_desc_pa;
dma_addr_t coal_conf_pa;
/* Wake-on-LAN */
u32 wol;
@@ -384,6 +385,9 @@ struct vmxnet3_adapter {
int share_intr;
struct Vmxnet3_CoalesceScheme *coal_conf;
bool default_coal_mode;
dma_addr_t adapter_pa;
dma_addr_t pm_conf_pa;
dma_addr_t rss_conf_pa;
@@ -429,6 +433,11 @@ struct vmxnet3_adapter {
(rqID >= 2 * adapter->num_rx_queues && \
rqID < 3 * adapter->num_rx_queues) \
#define VMXNET3_COAL_STATIC_DEFAULT_DEPTH 64
#define VMXNET3_COAL_RBC_RATE(usecs) (1000000 / usecs)
#define VMXNET3_COAL_RBC_USECS(rbc_rate) (1000000 / rbc_rate)
int
vmxnet3_quiesce_dev(struct vmxnet3_adapter *adapter);