diff options
| author | Shrikrishna Khare <skhare@vmware.com> | 2016-06-16 20:51:55 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-06-17 08:37:04 +0300 |
| commit | 3c8b3efc061a745d888869dc3462ac4f7dd582d9 (patch) | |
| tree | 1149b4276b76ca224ee99ab78146e643d563bcfb /drivers/net/vmxnet3/vmxnet3_ethtool.c | |
| parent | f35c7480f81b70f9c3030d96a3807e8faba34cf7 (diff) | |
| download | linux-3c8b3efc061a745d888869dc3462ac4f7dd582d9.tar.xz | |
vmxnet3: allow variable length transmit data ring buffer
vmxnet3 driver supports transmit data ring viz. a set of fixed size
buffers used by the driver to copy packet headers. Small packets that
fit these buffers are copied into these buffers entirely.
Currently this buffer size of fixed at 128 bytes. This patch extends
transmit data ring implementation to allow variable length transmit
data ring buffers. The length of the buffer is read from the emulation
during initialization.
Signed-off-by: Sriram Rangarajan <rangarajans@vmware.com>
Signed-off-by: Shrikrishna Khare <skhare@vmware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/vmxnet3/vmxnet3_ethtool.c')
| -rw-r--r-- | drivers/net/vmxnet3/vmxnet3_ethtool.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/net/vmxnet3/vmxnet3_ethtool.c b/drivers/net/vmxnet3/vmxnet3_ethtool.c index 163e99c91023..3b70cfef9748 100644 --- a/drivers/net/vmxnet3/vmxnet3_ethtool.c +++ b/drivers/net/vmxnet3/vmxnet3_ethtool.c @@ -396,8 +396,7 @@ vmxnet3_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p) buf[j++] = VMXNET3_GET_ADDR_LO(tq->data_ring.basePA); buf[j++] = VMXNET3_GET_ADDR_HI(tq->data_ring.basePA); buf[j++] = tq->data_ring.size; - /* transmit data ring buffer size */ - buf[j++] = VMXNET3_HDR_COPY_SIZE; + buf[j++] = tq->txdata_desc_size; buf[j++] = VMXNET3_GET_ADDR_LO(tq->comp_ring.basePA); buf[j++] = VMXNET3_GET_ADDR_HI(tq->comp_ring.basePA); @@ -591,7 +590,8 @@ vmxnet3_set_ringparam(struct net_device *netdev, vmxnet3_rq_destroy_all(adapter); err = vmxnet3_create_queues(adapter, new_tx_ring_size, - new_rx_ring_size, new_rx_ring2_size); + new_rx_ring_size, new_rx_ring2_size, + adapter->txdata_desc_size); if (err) { /* failed, most likely because of OOM, try default @@ -604,7 +604,8 @@ vmxnet3_set_ringparam(struct net_device *netdev, err = vmxnet3_create_queues(adapter, new_tx_ring_size, new_rx_ring_size, - new_rx_ring2_size); + new_rx_ring2_size, + adapter->txdata_desc_size); if (err) { netdev_err(netdev, "failed to create queues " "with default sizes. Closing it\n"); |